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9a799d71 AK |
1 | /******************************************************************************* |
2 | ||
3 | Intel 10 Gigabit PCI Express Linux driver | |
0391bbe3 | 4 | Copyright(c) 1999 - 2014 Intel Corporation. |
9a799d71 AK |
5 | |
6 | This program is free software; you can redistribute it and/or modify it | |
7 | under the terms and conditions of the GNU General Public License, | |
8 | version 2, as published by the Free Software Foundation. | |
9 | ||
10 | This program is distributed in the hope it will be useful, but WITHOUT | |
11 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
13 | more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License along with | |
16 | this program; if not, write to the Free Software Foundation, Inc., | |
17 | 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. | |
18 | ||
19 | The full GNU General Public License is included in this distribution in | |
20 | the file called "COPYING". | |
21 | ||
22 | Contact Information: | |
b89aae71 | 23 | Linux NICS <linux.nics@intel.com> |
9a799d71 AK |
24 | e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> |
25 | Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
26 | ||
27 | *******************************************************************************/ | |
28 | ||
29 | #include <linux/types.h> | |
30 | #include <linux/module.h> | |
31 | #include <linux/pci.h> | |
32 | #include <linux/netdevice.h> | |
33 | #include <linux/vmalloc.h> | |
34 | #include <linux/string.h> | |
35 | #include <linux/in.h> | |
a6b7a407 | 36 | #include <linux/interrupt.h> |
9a799d71 AK |
37 | #include <linux/ip.h> |
38 | #include <linux/tcp.h> | |
897ab156 | 39 | #include <linux/sctp.h> |
60127865 | 40 | #include <linux/pkt_sched.h> |
9a799d71 | 41 | #include <linux/ipv6.h> |
5a0e3ad6 | 42 | #include <linux/slab.h> |
9a799d71 AK |
43 | #include <net/checksum.h> |
44 | #include <net/ip6_checksum.h> | |
45 | #include <linux/ethtool.h> | |
01789349 | 46 | #include <linux/if.h> |
9a799d71 | 47 | #include <linux/if_vlan.h> |
2a47fa45 | 48 | #include <linux/if_macvlan.h> |
815cccbf | 49 | #include <linux/if_bridge.h> |
70c71606 | 50 | #include <linux/prefetch.h> |
eacd73f7 | 51 | #include <scsi/fc/fc_fcoe.h> |
9a799d71 AK |
52 | |
53 | #include "ixgbe.h" | |
54 | #include "ixgbe_common.h" | |
ee5f784a | 55 | #include "ixgbe_dcb_82599.h" |
1cdd1ec8 | 56 | #include "ixgbe_sriov.h" |
9a799d71 AK |
57 | |
58 | char ixgbe_driver_name[] = "ixgbe"; | |
9c8eb720 | 59 | static const char ixgbe_driver_string[] = |
e8e9f696 | 60 | "Intel(R) 10 Gigabit PCI Express Network Driver"; |
8af3c33f | 61 | #ifdef IXGBE_FCOE |
ea81875a NP |
62 | char ixgbe_default_device_descr[] = |
63 | "Intel(R) 10 Gigabit Network Connection"; | |
8af3c33f JK |
64 | #else |
65 | static char ixgbe_default_device_descr[] = | |
66 | "Intel(R) 10 Gigabit Network Connection"; | |
67 | #endif | |
f341c4e0 | 68 | #define DRV_VERSION "3.19.1-k" |
9c8eb720 | 69 | const char ixgbe_driver_version[] = DRV_VERSION; |
a52055e0 | 70 | static const char ixgbe_copyright[] = |
0391bbe3 | 71 | "Copyright (c) 1999-2014 Intel Corporation."; |
9a799d71 AK |
72 | |
73 | static const struct ixgbe_info *ixgbe_info_tbl[] = { | |
b4617240 | 74 | [board_82598] = &ixgbe_82598_info, |
e8e26350 | 75 | [board_82599] = &ixgbe_82599_info, |
fe15e8e1 | 76 | [board_X540] = &ixgbe_X540_info, |
9a799d71 AK |
77 | }; |
78 | ||
79 | /* ixgbe_pci_tbl - PCI Device ID Table | |
80 | * | |
81 | * Wildcard entries (PCI_ANY_ID) should come last | |
82 | * Last entry must be all 0s | |
83 | * | |
84 | * { Vendor ID, Device ID, SubVendor ID, SubDevice ID, | |
85 | * Class, Class Mask, private data (not used) } | |
86 | */ | |
9baa3c34 | 87 | static const struct pci_device_id ixgbe_pci_tbl[] = { |
54239c67 AD |
88 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598), board_82598 }, |
89 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_DUAL_PORT), board_82598 }, | |
90 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_SINGLE_PORT), board_82598 }, | |
91 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AT), board_82598 }, | |
92 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AT2), board_82598 }, | |
93 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_CX4), board_82598 }, | |
94 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_CX4_DUAL_PORT), board_82598 }, | |
95 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_DA_DUAL_PORT), board_82598 }, | |
96 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM), board_82598 }, | |
97 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_XF_LR), board_82598 }, | |
98 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_SFP_LOM), board_82598 }, | |
99 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_BX), board_82598 }, | |
100 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4), board_82599 }, | |
101 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_XAUI_LOM), board_82599 }, | |
102 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KR), board_82599 }, | |
103 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP), board_82599 }, | |
104 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_EM), board_82599 }, | |
105 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4_MEZZ), board_82599 }, | |
106 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_CX4), board_82599 }, | |
107 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_BACKPLANE_FCOE), board_82599 }, | |
108 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_FCOE), board_82599 }, | |
109 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_T3_LOM), board_82599 }, | |
110 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_COMBO_BACKPLANE), board_82599 }, | |
111 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X540T), board_X540 }, | |
112 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_SF2), board_82599 }, | |
113 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_LS), board_82599 }, | |
8f58332b | 114 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_QSFP_SF_QP), board_82599 }, |
7d145282 | 115 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599EN_SFP), board_82599 }, |
9e791e4a | 116 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_SF_QP), board_82599 }, |
df376f0d | 117 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X540T1), board_X540 }, |
9a799d71 AK |
118 | /* required last entry */ |
119 | {0, } | |
120 | }; | |
121 | MODULE_DEVICE_TABLE(pci, ixgbe_pci_tbl); | |
122 | ||
5dd2d332 | 123 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd | 124 | static int ixgbe_notify_dca(struct notifier_block *, unsigned long event, |
e8e9f696 | 125 | void *p); |
bd0362dd JC |
126 | static struct notifier_block dca_notifier = { |
127 | .notifier_call = ixgbe_notify_dca, | |
128 | .next = NULL, | |
129 | .priority = 0 | |
130 | }; | |
131 | #endif | |
132 | ||
1cdd1ec8 GR |
133 | #ifdef CONFIG_PCI_IOV |
134 | static unsigned int max_vfs; | |
135 | module_param(max_vfs, uint, 0); | |
e8e9f696 | 136 | MODULE_PARM_DESC(max_vfs, |
170e8543 | 137 | "Maximum number of virtual functions to allocate per physical function - default is zero and maximum value is 63. (Deprecated)"); |
1cdd1ec8 GR |
138 | #endif /* CONFIG_PCI_IOV */ |
139 | ||
8ef78adc PWJ |
140 | static unsigned int allow_unsupported_sfp; |
141 | module_param(allow_unsupported_sfp, uint, 0); | |
142 | MODULE_PARM_DESC(allow_unsupported_sfp, | |
143 | "Allow unsupported and untested SFP+ modules on 82599-based adapters"); | |
144 | ||
b3f4d599 | 145 | #define DEFAULT_MSG_ENABLE (NETIF_MSG_DRV|NETIF_MSG_PROBE|NETIF_MSG_LINK) |
146 | static int debug = -1; | |
147 | module_param(debug, int, 0); | |
148 | MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); | |
149 | ||
9a799d71 AK |
150 | MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>"); |
151 | MODULE_DESCRIPTION("Intel(R) 10 Gigabit PCI Express Network Driver"); | |
152 | MODULE_LICENSE("GPL"); | |
153 | MODULE_VERSION(DRV_VERSION); | |
154 | ||
14438464 MR |
155 | static bool ixgbe_check_cfg_remove(struct ixgbe_hw *hw, struct pci_dev *pdev); |
156 | ||
b8e82001 JK |
157 | static int ixgbe_read_pci_cfg_word_parent(struct ixgbe_adapter *adapter, |
158 | u32 reg, u16 *value) | |
159 | { | |
b8e82001 JK |
160 | struct pci_dev *parent_dev; |
161 | struct pci_bus *parent_bus; | |
162 | ||
163 | parent_bus = adapter->pdev->bus->parent; | |
164 | if (!parent_bus) | |
165 | return -1; | |
166 | ||
167 | parent_dev = parent_bus->self; | |
168 | if (!parent_dev) | |
169 | return -1; | |
170 | ||
c0798edf | 171 | if (!pci_is_pcie(parent_dev)) |
b8e82001 JK |
172 | return -1; |
173 | ||
c0798edf | 174 | pcie_capability_read_word(parent_dev, reg, value); |
14438464 MR |
175 | if (*value == IXGBE_FAILED_READ_CFG_WORD && |
176 | ixgbe_check_cfg_remove(&adapter->hw, parent_dev)) | |
177 | return -1; | |
b8e82001 JK |
178 | return 0; |
179 | } | |
180 | ||
181 | static s32 ixgbe_get_parent_bus_info(struct ixgbe_adapter *adapter) | |
182 | { | |
183 | struct ixgbe_hw *hw = &adapter->hw; | |
184 | u16 link_status = 0; | |
185 | int err; | |
186 | ||
187 | hw->bus.type = ixgbe_bus_type_pci_express; | |
188 | ||
189 | /* Get the negotiated link width and speed from PCI config space of the | |
190 | * parent, as this device is behind a switch | |
191 | */ | |
192 | err = ixgbe_read_pci_cfg_word_parent(adapter, 18, &link_status); | |
193 | ||
194 | /* assume caller will handle error case */ | |
195 | if (err) | |
196 | return err; | |
197 | ||
198 | hw->bus.width = ixgbe_convert_bus_width(link_status); | |
199 | hw->bus.speed = ixgbe_convert_bus_speed(link_status); | |
200 | ||
201 | return 0; | |
202 | } | |
203 | ||
e027d1ae JK |
204 | /** |
205 | * ixgbe_check_from_parent - Determine whether PCIe info should come from parent | |
206 | * @hw: hw specific details | |
207 | * | |
208 | * This function is used by probe to determine whether a device's PCI-Express | |
209 | * bandwidth details should be gathered from the parent bus instead of from the | |
210 | * device. Used to ensure that various locations all have the correct device ID | |
211 | * checks. | |
212 | */ | |
213 | static inline bool ixgbe_pcie_from_parent(struct ixgbe_hw *hw) | |
214 | { | |
215 | switch (hw->device_id) { | |
216 | case IXGBE_DEV_ID_82599_SFP_SF_QP: | |
8f58332b | 217 | case IXGBE_DEV_ID_82599_QSFP_SF_QP: |
e027d1ae JK |
218 | return true; |
219 | default: | |
220 | return false; | |
221 | } | |
222 | } | |
223 | ||
224 | static void ixgbe_check_minimum_link(struct ixgbe_adapter *adapter, | |
225 | int expected_gts) | |
226 | { | |
227 | int max_gts = 0; | |
228 | enum pci_bus_speed speed = PCI_SPEED_UNKNOWN; | |
229 | enum pcie_link_width width = PCIE_LNK_WIDTH_UNKNOWN; | |
230 | struct pci_dev *pdev; | |
231 | ||
232 | /* determine whether to use the the parent device | |
233 | */ | |
234 | if (ixgbe_pcie_from_parent(&adapter->hw)) | |
235 | pdev = adapter->pdev->bus->parent->self; | |
236 | else | |
237 | pdev = adapter->pdev; | |
238 | ||
239 | if (pcie_get_minimum_link(pdev, &speed, &width) || | |
240 | speed == PCI_SPEED_UNKNOWN || width == PCIE_LNK_WIDTH_UNKNOWN) { | |
241 | e_dev_warn("Unable to determine PCI Express bandwidth.\n"); | |
242 | return; | |
243 | } | |
244 | ||
245 | switch (speed) { | |
246 | case PCIE_SPEED_2_5GT: | |
247 | /* 8b/10b encoding reduces max throughput by 20% */ | |
248 | max_gts = 2 * width; | |
249 | break; | |
250 | case PCIE_SPEED_5_0GT: | |
251 | /* 8b/10b encoding reduces max throughput by 20% */ | |
252 | max_gts = 4 * width; | |
253 | break; | |
254 | case PCIE_SPEED_8_0GT: | |
9f0a433c | 255 | /* 128b/130b encoding reduces throughput by less than 2% */ |
e027d1ae JK |
256 | max_gts = 8 * width; |
257 | break; | |
258 | default: | |
259 | e_dev_warn("Unable to determine PCI Express bandwidth.\n"); | |
260 | return; | |
261 | } | |
262 | ||
263 | e_dev_info("PCI Express bandwidth of %dGT/s available\n", | |
264 | max_gts); | |
265 | e_dev_info("(Speed:%s, Width: x%d, Encoding Loss:%s)\n", | |
266 | (speed == PCIE_SPEED_8_0GT ? "8.0GT/s" : | |
267 | speed == PCIE_SPEED_5_0GT ? "5.0GT/s" : | |
268 | speed == PCIE_SPEED_2_5GT ? "2.5GT/s" : | |
269 | "Unknown"), | |
270 | width, | |
271 | (speed == PCIE_SPEED_2_5GT ? "20%" : | |
272 | speed == PCIE_SPEED_5_0GT ? "20%" : | |
9f0a433c | 273 | speed == PCIE_SPEED_8_0GT ? "<2%" : |
e027d1ae JK |
274 | "Unknown")); |
275 | ||
276 | if (max_gts < expected_gts) { | |
277 | e_dev_warn("This is not sufficient for optimal performance of this card.\n"); | |
278 | e_dev_warn("For optimal performance, at least %dGT/s of bandwidth is required.\n", | |
279 | expected_gts); | |
280 | e_dev_warn("A slot with more lanes and/or higher speed is suggested.\n"); | |
281 | } | |
282 | } | |
283 | ||
7086400d AD |
284 | static void ixgbe_service_event_schedule(struct ixgbe_adapter *adapter) |
285 | { | |
286 | if (!test_bit(__IXGBE_DOWN, &adapter->state) && | |
09f40aed | 287 | !test_bit(__IXGBE_REMOVING, &adapter->state) && |
7086400d AD |
288 | !test_and_set_bit(__IXGBE_SERVICE_SCHED, &adapter->state)) |
289 | schedule_work(&adapter->service_task); | |
290 | } | |
291 | ||
2a1a091c MR |
292 | static void ixgbe_remove_adapter(struct ixgbe_hw *hw) |
293 | { | |
294 | struct ixgbe_adapter *adapter = hw->back; | |
295 | ||
296 | if (!hw->hw_addr) | |
297 | return; | |
298 | hw->hw_addr = NULL; | |
299 | e_dev_err("Adapter removed\n"); | |
58cf663f MR |
300 | if (test_bit(__IXGBE_SERVICE_INITED, &adapter->state)) |
301 | ixgbe_service_event_schedule(adapter); | |
2a1a091c MR |
302 | } |
303 | ||
f8e2472f | 304 | static void ixgbe_check_remove(struct ixgbe_hw *hw, u32 reg) |
2a1a091c MR |
305 | { |
306 | u32 value; | |
307 | ||
308 | /* The following check not only optimizes a bit by not | |
309 | * performing a read on the status register when the | |
310 | * register just read was a status register read that | |
311 | * returned IXGBE_FAILED_READ_REG. It also blocks any | |
312 | * potential recursion. | |
313 | */ | |
314 | if (reg == IXGBE_STATUS) { | |
315 | ixgbe_remove_adapter(hw); | |
316 | return; | |
317 | } | |
318 | value = ixgbe_read_reg(hw, IXGBE_STATUS); | |
319 | if (value == IXGBE_FAILED_READ_REG) | |
320 | ixgbe_remove_adapter(hw); | |
321 | } | |
322 | ||
f8e2472f MR |
323 | /** |
324 | * ixgbe_read_reg - Read from device register | |
325 | * @hw: hw specific details | |
326 | * @reg: offset of register to read | |
327 | * | |
328 | * Returns : value read or IXGBE_FAILED_READ_REG if removed | |
329 | * | |
330 | * This function is used to read device registers. It checks for device | |
331 | * removal by confirming any read that returns all ones by checking the | |
332 | * status register value for all ones. This function avoids reading from | |
333 | * the hardware if a removal was previously detected in which case it | |
334 | * returns IXGBE_FAILED_READ_REG (all ones). | |
335 | */ | |
336 | u32 ixgbe_read_reg(struct ixgbe_hw *hw, u32 reg) | |
337 | { | |
338 | u8 __iomem *reg_addr = ACCESS_ONCE(hw->hw_addr); | |
339 | u32 value; | |
340 | ||
341 | if (ixgbe_removed(reg_addr)) | |
342 | return IXGBE_FAILED_READ_REG; | |
343 | value = readl(reg_addr + reg); | |
344 | if (unlikely(value == IXGBE_FAILED_READ_REG)) | |
345 | ixgbe_check_remove(hw, reg); | |
346 | return value; | |
347 | } | |
348 | ||
14438464 MR |
349 | static bool ixgbe_check_cfg_remove(struct ixgbe_hw *hw, struct pci_dev *pdev) |
350 | { | |
351 | u16 value; | |
352 | ||
353 | pci_read_config_word(pdev, PCI_VENDOR_ID, &value); | |
354 | if (value == IXGBE_FAILED_READ_CFG_WORD) { | |
355 | ixgbe_remove_adapter(hw); | |
356 | return true; | |
357 | } | |
358 | return false; | |
359 | } | |
360 | ||
361 | u16 ixgbe_read_pci_cfg_word(struct ixgbe_hw *hw, u32 reg) | |
362 | { | |
363 | struct ixgbe_adapter *adapter = hw->back; | |
364 | u16 value; | |
365 | ||
366 | if (ixgbe_removed(hw->hw_addr)) | |
367 | return IXGBE_FAILED_READ_CFG_WORD; | |
368 | pci_read_config_word(adapter->pdev, reg, &value); | |
369 | if (value == IXGBE_FAILED_READ_CFG_WORD && | |
370 | ixgbe_check_cfg_remove(hw, adapter->pdev)) | |
371 | return IXGBE_FAILED_READ_CFG_WORD; | |
372 | return value; | |
373 | } | |
374 | ||
375 | #ifdef CONFIG_PCI_IOV | |
376 | static u32 ixgbe_read_pci_cfg_dword(struct ixgbe_hw *hw, u32 reg) | |
377 | { | |
378 | struct ixgbe_adapter *adapter = hw->back; | |
379 | u32 value; | |
380 | ||
381 | if (ixgbe_removed(hw->hw_addr)) | |
382 | return IXGBE_FAILED_READ_CFG_DWORD; | |
383 | pci_read_config_dword(adapter->pdev, reg, &value); | |
384 | if (value == IXGBE_FAILED_READ_CFG_DWORD && | |
385 | ixgbe_check_cfg_remove(hw, adapter->pdev)) | |
386 | return IXGBE_FAILED_READ_CFG_DWORD; | |
387 | return value; | |
388 | } | |
389 | #endif /* CONFIG_PCI_IOV */ | |
390 | ||
ed19231c JK |
391 | void ixgbe_write_pci_cfg_word(struct ixgbe_hw *hw, u32 reg, u16 value) |
392 | { | |
393 | struct ixgbe_adapter *adapter = hw->back; | |
394 | ||
395 | if (ixgbe_removed(hw->hw_addr)) | |
396 | return; | |
397 | pci_write_config_word(adapter->pdev, reg, value); | |
398 | } | |
399 | ||
7086400d AD |
400 | static void ixgbe_service_event_complete(struct ixgbe_adapter *adapter) |
401 | { | |
402 | BUG_ON(!test_bit(__IXGBE_SERVICE_SCHED, &adapter->state)); | |
403 | ||
52f33af8 | 404 | /* flush memory to make sure state is correct before next watchdog */ |
4e857c58 | 405 | smp_mb__before_atomic(); |
7086400d AD |
406 | clear_bit(__IXGBE_SERVICE_SCHED, &adapter->state); |
407 | } | |
408 | ||
dcd79aeb TI |
409 | struct ixgbe_reg_info { |
410 | u32 ofs; | |
411 | char *name; | |
412 | }; | |
413 | ||
414 | static const struct ixgbe_reg_info ixgbe_reg_info_tbl[] = { | |
415 | ||
416 | /* General Registers */ | |
417 | {IXGBE_CTRL, "CTRL"}, | |
418 | {IXGBE_STATUS, "STATUS"}, | |
419 | {IXGBE_CTRL_EXT, "CTRL_EXT"}, | |
420 | ||
421 | /* Interrupt Registers */ | |
422 | {IXGBE_EICR, "EICR"}, | |
423 | ||
424 | /* RX Registers */ | |
425 | {IXGBE_SRRCTL(0), "SRRCTL"}, | |
426 | {IXGBE_DCA_RXCTRL(0), "DRXCTL"}, | |
427 | {IXGBE_RDLEN(0), "RDLEN"}, | |
428 | {IXGBE_RDH(0), "RDH"}, | |
429 | {IXGBE_RDT(0), "RDT"}, | |
430 | {IXGBE_RXDCTL(0), "RXDCTL"}, | |
431 | {IXGBE_RDBAL(0), "RDBAL"}, | |
432 | {IXGBE_RDBAH(0), "RDBAH"}, | |
433 | ||
434 | /* TX Registers */ | |
435 | {IXGBE_TDBAL(0), "TDBAL"}, | |
436 | {IXGBE_TDBAH(0), "TDBAH"}, | |
437 | {IXGBE_TDLEN(0), "TDLEN"}, | |
438 | {IXGBE_TDH(0), "TDH"}, | |
439 | {IXGBE_TDT(0), "TDT"}, | |
440 | {IXGBE_TXDCTL(0), "TXDCTL"}, | |
441 | ||
442 | /* List Terminator */ | |
ca8dfe25 | 443 | { .name = NULL } |
dcd79aeb TI |
444 | }; |
445 | ||
446 | ||
447 | /* | |
448 | * ixgbe_regdump - register printout routine | |
449 | */ | |
450 | static void ixgbe_regdump(struct ixgbe_hw *hw, struct ixgbe_reg_info *reginfo) | |
451 | { | |
452 | int i = 0, j = 0; | |
453 | char rname[16]; | |
454 | u32 regs[64]; | |
455 | ||
456 | switch (reginfo->ofs) { | |
457 | case IXGBE_SRRCTL(0): | |
458 | for (i = 0; i < 64; i++) | |
459 | regs[i] = IXGBE_READ_REG(hw, IXGBE_SRRCTL(i)); | |
460 | break; | |
461 | case IXGBE_DCA_RXCTRL(0): | |
462 | for (i = 0; i < 64; i++) | |
463 | regs[i] = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i)); | |
464 | break; | |
465 | case IXGBE_RDLEN(0): | |
466 | for (i = 0; i < 64; i++) | |
467 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDLEN(i)); | |
468 | break; | |
469 | case IXGBE_RDH(0): | |
470 | for (i = 0; i < 64; i++) | |
471 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDH(i)); | |
472 | break; | |
473 | case IXGBE_RDT(0): | |
474 | for (i = 0; i < 64; i++) | |
475 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDT(i)); | |
476 | break; | |
477 | case IXGBE_RXDCTL(0): | |
478 | for (i = 0; i < 64; i++) | |
479 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i)); | |
480 | break; | |
481 | case IXGBE_RDBAL(0): | |
482 | for (i = 0; i < 64; i++) | |
483 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDBAL(i)); | |
484 | break; | |
485 | case IXGBE_RDBAH(0): | |
486 | for (i = 0; i < 64; i++) | |
487 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDBAH(i)); | |
488 | break; | |
489 | case IXGBE_TDBAL(0): | |
490 | for (i = 0; i < 64; i++) | |
491 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDBAL(i)); | |
492 | break; | |
493 | case IXGBE_TDBAH(0): | |
494 | for (i = 0; i < 64; i++) | |
495 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDBAH(i)); | |
496 | break; | |
497 | case IXGBE_TDLEN(0): | |
498 | for (i = 0; i < 64; i++) | |
499 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDLEN(i)); | |
500 | break; | |
501 | case IXGBE_TDH(0): | |
502 | for (i = 0; i < 64; i++) | |
503 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDH(i)); | |
504 | break; | |
505 | case IXGBE_TDT(0): | |
506 | for (i = 0; i < 64; i++) | |
507 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDT(i)); | |
508 | break; | |
509 | case IXGBE_TXDCTL(0): | |
510 | for (i = 0; i < 64; i++) | |
511 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TXDCTL(i)); | |
512 | break; | |
513 | default: | |
c7689578 | 514 | pr_info("%-15s %08x\n", reginfo->name, |
dcd79aeb TI |
515 | IXGBE_READ_REG(hw, reginfo->ofs)); |
516 | return; | |
517 | } | |
518 | ||
519 | for (i = 0; i < 8; i++) { | |
520 | snprintf(rname, 16, "%s[%d-%d]", reginfo->name, i*8, i*8+7); | |
c7689578 | 521 | pr_err("%-15s", rname); |
dcd79aeb | 522 | for (j = 0; j < 8; j++) |
c7689578 JP |
523 | pr_cont(" %08x", regs[i*8+j]); |
524 | pr_cont("\n"); | |
dcd79aeb TI |
525 | } |
526 | ||
527 | } | |
528 | ||
529 | /* | |
530 | * ixgbe_dump - Print registers, tx-rings and rx-rings | |
531 | */ | |
532 | static void ixgbe_dump(struct ixgbe_adapter *adapter) | |
533 | { | |
534 | struct net_device *netdev = adapter->netdev; | |
535 | struct ixgbe_hw *hw = &adapter->hw; | |
536 | struct ixgbe_reg_info *reginfo; | |
537 | int n = 0; | |
538 | struct ixgbe_ring *tx_ring; | |
729739b7 | 539 | struct ixgbe_tx_buffer *tx_buffer; |
dcd79aeb TI |
540 | union ixgbe_adv_tx_desc *tx_desc; |
541 | struct my_u0 { u64 a; u64 b; } *u0; | |
542 | struct ixgbe_ring *rx_ring; | |
543 | union ixgbe_adv_rx_desc *rx_desc; | |
544 | struct ixgbe_rx_buffer *rx_buffer_info; | |
545 | u32 staterr; | |
546 | int i = 0; | |
547 | ||
548 | if (!netif_msg_hw(adapter)) | |
549 | return; | |
550 | ||
551 | /* Print netdevice Info */ | |
552 | if (netdev) { | |
553 | dev_info(&adapter->pdev->dev, "Net device Info\n"); | |
c7689578 | 554 | pr_info("Device Name state " |
dcd79aeb | 555 | "trans_start last_rx\n"); |
c7689578 JP |
556 | pr_info("%-15s %016lX %016lX %016lX\n", |
557 | netdev->name, | |
558 | netdev->state, | |
559 | netdev->trans_start, | |
560 | netdev->last_rx); | |
dcd79aeb TI |
561 | } |
562 | ||
563 | /* Print Registers */ | |
564 | dev_info(&adapter->pdev->dev, "Register Dump\n"); | |
c7689578 | 565 | pr_info(" Register Name Value\n"); |
dcd79aeb TI |
566 | for (reginfo = (struct ixgbe_reg_info *)ixgbe_reg_info_tbl; |
567 | reginfo->name; reginfo++) { | |
568 | ixgbe_regdump(hw, reginfo); | |
569 | } | |
570 | ||
571 | /* Print TX Ring Summary */ | |
572 | if (!netdev || !netif_running(netdev)) | |
e90dd264 | 573 | return; |
dcd79aeb TI |
574 | |
575 | dev_info(&adapter->pdev->dev, "TX Rings Summary\n"); | |
8ad88e37 JH |
576 | pr_info(" %s %s %s %s\n", |
577 | "Queue [NTU] [NTC] [bi(ntc)->dma ]", | |
578 | "leng", "ntw", "timestamp"); | |
dcd79aeb TI |
579 | for (n = 0; n < adapter->num_tx_queues; n++) { |
580 | tx_ring = adapter->tx_ring[n]; | |
729739b7 | 581 | tx_buffer = &tx_ring->tx_buffer_info[tx_ring->next_to_clean]; |
8ad88e37 | 582 | pr_info(" %5d %5X %5X %016llX %08X %p %016llX\n", |
dcd79aeb | 583 | n, tx_ring->next_to_use, tx_ring->next_to_clean, |
729739b7 AD |
584 | (u64)dma_unmap_addr(tx_buffer, dma), |
585 | dma_unmap_len(tx_buffer, len), | |
586 | tx_buffer->next_to_watch, | |
587 | (u64)tx_buffer->time_stamp); | |
dcd79aeb TI |
588 | } |
589 | ||
590 | /* Print TX Rings */ | |
591 | if (!netif_msg_tx_done(adapter)) | |
592 | goto rx_ring_summary; | |
593 | ||
594 | dev_info(&adapter->pdev->dev, "TX Rings Dump\n"); | |
595 | ||
596 | /* Transmit Descriptor Formats | |
597 | * | |
39ac868a | 598 | * 82598 Advanced Transmit Descriptor |
dcd79aeb TI |
599 | * +--------------------------------------------------------------+ |
600 | * 0 | Buffer Address [63:0] | | |
601 | * +--------------------------------------------------------------+ | |
39ac868a | 602 | * 8 | PAYLEN | POPTS | IDX | STA | DCMD |DTYP | RSV | DTALEN | |
dcd79aeb TI |
603 | * +--------------------------------------------------------------+ |
604 | * 63 46 45 40 39 36 35 32 31 24 23 20 19 0 | |
39ac868a JH |
605 | * |
606 | * 82598 Advanced Transmit Descriptor (Write-Back Format) | |
607 | * +--------------------------------------------------------------+ | |
608 | * 0 | RSV [63:0] | | |
609 | * +--------------------------------------------------------------+ | |
610 | * 8 | RSV | STA | NXTSEQ | | |
611 | * +--------------------------------------------------------------+ | |
612 | * 63 36 35 32 31 0 | |
613 | * | |
614 | * 82599+ Advanced Transmit Descriptor | |
615 | * +--------------------------------------------------------------+ | |
616 | * 0 | Buffer Address [63:0] | | |
617 | * +--------------------------------------------------------------+ | |
618 | * 8 |PAYLEN |POPTS|CC|IDX |STA |DCMD |DTYP |MAC |RSV |DTALEN | | |
619 | * +--------------------------------------------------------------+ | |
620 | * 63 46 45 40 39 38 36 35 32 31 24 23 20 19 18 17 16 15 0 | |
621 | * | |
622 | * 82599+ Advanced Transmit Descriptor (Write-Back Format) | |
623 | * +--------------------------------------------------------------+ | |
624 | * 0 | RSV [63:0] | | |
625 | * +--------------------------------------------------------------+ | |
626 | * 8 | RSV | STA | RSV | | |
627 | * +--------------------------------------------------------------+ | |
628 | * 63 36 35 32 31 0 | |
dcd79aeb TI |
629 | */ |
630 | ||
631 | for (n = 0; n < adapter->num_tx_queues; n++) { | |
632 | tx_ring = adapter->tx_ring[n]; | |
c7689578 JP |
633 | pr_info("------------------------------------\n"); |
634 | pr_info("TX QUEUE INDEX = %d\n", tx_ring->queue_index); | |
635 | pr_info("------------------------------------\n"); | |
8ad88e37 JH |
636 | pr_info("%s%s %s %s %s %s\n", |
637 | "T [desc] [address 63:0 ] ", | |
638 | "[PlPOIdStDDt Ln] [bi->dma ] ", | |
639 | "leng", "ntw", "timestamp", "bi->skb"); | |
dcd79aeb TI |
640 | |
641 | for (i = 0; tx_ring->desc && (i < tx_ring->count); i++) { | |
e4f74028 | 642 | tx_desc = IXGBE_TX_DESC(tx_ring, i); |
729739b7 | 643 | tx_buffer = &tx_ring->tx_buffer_info[i]; |
dcd79aeb | 644 | u0 = (struct my_u0 *)tx_desc; |
8ad88e37 JH |
645 | if (dma_unmap_len(tx_buffer, len) > 0) { |
646 | pr_info("T [0x%03X] %016llX %016llX %016llX %08X %p %016llX %p", | |
647 | i, | |
648 | le64_to_cpu(u0->a), | |
649 | le64_to_cpu(u0->b), | |
650 | (u64)dma_unmap_addr(tx_buffer, dma), | |
729739b7 | 651 | dma_unmap_len(tx_buffer, len), |
8ad88e37 JH |
652 | tx_buffer->next_to_watch, |
653 | (u64)tx_buffer->time_stamp, | |
654 | tx_buffer->skb); | |
655 | if (i == tx_ring->next_to_use && | |
656 | i == tx_ring->next_to_clean) | |
657 | pr_cont(" NTC/U\n"); | |
658 | else if (i == tx_ring->next_to_use) | |
659 | pr_cont(" NTU\n"); | |
660 | else if (i == tx_ring->next_to_clean) | |
661 | pr_cont(" NTC\n"); | |
662 | else | |
663 | pr_cont("\n"); | |
664 | ||
665 | if (netif_msg_pktdata(adapter) && | |
666 | tx_buffer->skb) | |
667 | print_hex_dump(KERN_INFO, "", | |
668 | DUMP_PREFIX_ADDRESS, 16, 1, | |
669 | tx_buffer->skb->data, | |
670 | dma_unmap_len(tx_buffer, len), | |
671 | true); | |
672 | } | |
dcd79aeb TI |
673 | } |
674 | } | |
675 | ||
676 | /* Print RX Rings Summary */ | |
677 | rx_ring_summary: | |
678 | dev_info(&adapter->pdev->dev, "RX Rings Summary\n"); | |
c7689578 | 679 | pr_info("Queue [NTU] [NTC]\n"); |
dcd79aeb TI |
680 | for (n = 0; n < adapter->num_rx_queues; n++) { |
681 | rx_ring = adapter->rx_ring[n]; | |
c7689578 JP |
682 | pr_info("%5d %5X %5X\n", |
683 | n, rx_ring->next_to_use, rx_ring->next_to_clean); | |
dcd79aeb TI |
684 | } |
685 | ||
686 | /* Print RX Rings */ | |
687 | if (!netif_msg_rx_status(adapter)) | |
e90dd264 | 688 | return; |
dcd79aeb TI |
689 | |
690 | dev_info(&adapter->pdev->dev, "RX Rings Dump\n"); | |
691 | ||
39ac868a JH |
692 | /* Receive Descriptor Formats |
693 | * | |
694 | * 82598 Advanced Receive Descriptor (Read) Format | |
dcd79aeb TI |
695 | * 63 1 0 |
696 | * +-----------------------------------------------------+ | |
697 | * 0 | Packet Buffer Address [63:1] |A0/NSE| | |
698 | * +----------------------------------------------+------+ | |
699 | * 8 | Header Buffer Address [63:1] | DD | | |
700 | * +-----------------------------------------------------+ | |
701 | * | |
702 | * | |
39ac868a | 703 | * 82598 Advanced Receive Descriptor (Write-Back) Format |
dcd79aeb TI |
704 | * |
705 | * 63 48 47 32 31 30 21 20 16 15 4 3 0 | |
706 | * +------------------------------------------------------+ | |
39ac868a JH |
707 | * 0 | RSS Hash / |SPH| HDR_LEN | RSV |Packet| RSS | |
708 | * | Packet | IP | | | | Type | Type | | |
709 | * | Checksum | Ident | | | | | | | |
dcd79aeb TI |
710 | * +------------------------------------------------------+ |
711 | * 8 | VLAN Tag | Length | Extended Error | Extended Status | | |
712 | * +------------------------------------------------------+ | |
713 | * 63 48 47 32 31 20 19 0 | |
39ac868a JH |
714 | * |
715 | * 82599+ Advanced Receive Descriptor (Read) Format | |
716 | * 63 1 0 | |
717 | * +-----------------------------------------------------+ | |
718 | * 0 | Packet Buffer Address [63:1] |A0/NSE| | |
719 | * +----------------------------------------------+------+ | |
720 | * 8 | Header Buffer Address [63:1] | DD | | |
721 | * +-----------------------------------------------------+ | |
722 | * | |
723 | * | |
724 | * 82599+ Advanced Receive Descriptor (Write-Back) Format | |
725 | * | |
726 | * 63 48 47 32 31 30 21 20 17 16 4 3 0 | |
727 | * +------------------------------------------------------+ | |
728 | * 0 |RSS / Frag Checksum|SPH| HDR_LEN |RSC- |Packet| RSS | | |
729 | * |/ RTT / PCoE_PARAM | | | CNT | Type | Type | | |
730 | * |/ Flow Dir Flt ID | | | | | | | |
731 | * +------------------------------------------------------+ | |
732 | * 8 | VLAN Tag | Length |Extended Error| Xtnd Status/NEXTP | | |
733 | * +------------------------------------------------------+ | |
734 | * 63 48 47 32 31 20 19 0 | |
dcd79aeb | 735 | */ |
39ac868a | 736 | |
dcd79aeb TI |
737 | for (n = 0; n < adapter->num_rx_queues; n++) { |
738 | rx_ring = adapter->rx_ring[n]; | |
c7689578 JP |
739 | pr_info("------------------------------------\n"); |
740 | pr_info("RX QUEUE INDEX = %d\n", rx_ring->queue_index); | |
741 | pr_info("------------------------------------\n"); | |
8ad88e37 JH |
742 | pr_info("%s%s%s", |
743 | "R [desc] [ PktBuf A0] ", | |
744 | "[ HeadBuf DD] [bi->dma ] [bi->skb ] ", | |
dcd79aeb | 745 | "<-- Adv Rx Read format\n"); |
8ad88e37 JH |
746 | pr_info("%s%s%s", |
747 | "RWB[desc] [PcsmIpSHl PtRs] ", | |
748 | "[vl er S cks ln] ---------------- [bi->skb ] ", | |
dcd79aeb TI |
749 | "<-- Adv Rx Write-Back format\n"); |
750 | ||
751 | for (i = 0; i < rx_ring->count; i++) { | |
752 | rx_buffer_info = &rx_ring->rx_buffer_info[i]; | |
e4f74028 | 753 | rx_desc = IXGBE_RX_DESC(rx_ring, i); |
dcd79aeb TI |
754 | u0 = (struct my_u0 *)rx_desc; |
755 | staterr = le32_to_cpu(rx_desc->wb.upper.status_error); | |
756 | if (staterr & IXGBE_RXD_STAT_DD) { | |
757 | /* Descriptor Done */ | |
c7689578 | 758 | pr_info("RWB[0x%03X] %016llX " |
dcd79aeb TI |
759 | "%016llX ---------------- %p", i, |
760 | le64_to_cpu(u0->a), | |
761 | le64_to_cpu(u0->b), | |
762 | rx_buffer_info->skb); | |
763 | } else { | |
c7689578 | 764 | pr_info("R [0x%03X] %016llX " |
dcd79aeb TI |
765 | "%016llX %016llX %p", i, |
766 | le64_to_cpu(u0->a), | |
767 | le64_to_cpu(u0->b), | |
768 | (u64)rx_buffer_info->dma, | |
769 | rx_buffer_info->skb); | |
770 | ||
9c50c035 ET |
771 | if (netif_msg_pktdata(adapter) && |
772 | rx_buffer_info->dma) { | |
dcd79aeb TI |
773 | print_hex_dump(KERN_INFO, "", |
774 | DUMP_PREFIX_ADDRESS, 16, 1, | |
9c50c035 ET |
775 | page_address(rx_buffer_info->page) + |
776 | rx_buffer_info->page_offset, | |
f800326d | 777 | ixgbe_rx_bufsz(rx_ring), true); |
dcd79aeb TI |
778 | } |
779 | } | |
780 | ||
781 | if (i == rx_ring->next_to_use) | |
c7689578 | 782 | pr_cont(" NTU\n"); |
dcd79aeb | 783 | else if (i == rx_ring->next_to_clean) |
c7689578 | 784 | pr_cont(" NTC\n"); |
dcd79aeb | 785 | else |
c7689578 | 786 | pr_cont("\n"); |
dcd79aeb TI |
787 | |
788 | } | |
789 | } | |
dcd79aeb TI |
790 | } |
791 | ||
5eba3699 AV |
792 | static void ixgbe_release_hw_control(struct ixgbe_adapter *adapter) |
793 | { | |
794 | u32 ctrl_ext; | |
795 | ||
796 | /* Let firmware take over control of h/w */ | |
797 | ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT); | |
798 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT, | |
e8e9f696 | 799 | ctrl_ext & ~IXGBE_CTRL_EXT_DRV_LOAD); |
5eba3699 AV |
800 | } |
801 | ||
802 | static void ixgbe_get_hw_control(struct ixgbe_adapter *adapter) | |
803 | { | |
804 | u32 ctrl_ext; | |
805 | ||
806 | /* Let firmware know the driver has taken over */ | |
807 | ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT); | |
808 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT, | |
e8e9f696 | 809 | ctrl_ext | IXGBE_CTRL_EXT_DRV_LOAD); |
5eba3699 | 810 | } |
9a799d71 | 811 | |
49ce9c2c | 812 | /** |
e8e26350 PW |
813 | * ixgbe_set_ivar - set the IVAR registers, mapping interrupt causes to vectors |
814 | * @adapter: pointer to adapter struct | |
815 | * @direction: 0 for Rx, 1 for Tx, -1 for other causes | |
816 | * @queue: queue to map the corresponding interrupt to | |
817 | * @msix_vector: the vector to map to the corresponding queue | |
818 | * | |
819 | */ | |
820 | static void ixgbe_set_ivar(struct ixgbe_adapter *adapter, s8 direction, | |
e8e9f696 | 821 | u8 queue, u8 msix_vector) |
9a799d71 AK |
822 | { |
823 | u32 ivar, index; | |
e8e26350 PW |
824 | struct ixgbe_hw *hw = &adapter->hw; |
825 | switch (hw->mac.type) { | |
826 | case ixgbe_mac_82598EB: | |
827 | msix_vector |= IXGBE_IVAR_ALLOC_VAL; | |
828 | if (direction == -1) | |
829 | direction = 0; | |
830 | index = (((direction * 64) + queue) >> 2) & 0x1F; | |
831 | ivar = IXGBE_READ_REG(hw, IXGBE_IVAR(index)); | |
832 | ivar &= ~(0xFF << (8 * (queue & 0x3))); | |
833 | ivar |= (msix_vector << (8 * (queue & 0x3))); | |
834 | IXGBE_WRITE_REG(hw, IXGBE_IVAR(index), ivar); | |
835 | break; | |
836 | case ixgbe_mac_82599EB: | |
b93a2226 | 837 | case ixgbe_mac_X540: |
e8e26350 PW |
838 | if (direction == -1) { |
839 | /* other causes */ | |
840 | msix_vector |= IXGBE_IVAR_ALLOC_VAL; | |
841 | index = ((queue & 1) * 8); | |
842 | ivar = IXGBE_READ_REG(&adapter->hw, IXGBE_IVAR_MISC); | |
843 | ivar &= ~(0xFF << index); | |
844 | ivar |= (msix_vector << index); | |
845 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_IVAR_MISC, ivar); | |
846 | break; | |
847 | } else { | |
848 | /* tx or rx causes */ | |
849 | msix_vector |= IXGBE_IVAR_ALLOC_VAL; | |
850 | index = ((16 * (queue & 1)) + (8 * direction)); | |
851 | ivar = IXGBE_READ_REG(hw, IXGBE_IVAR(queue >> 1)); | |
852 | ivar &= ~(0xFF << index); | |
853 | ivar |= (msix_vector << index); | |
854 | IXGBE_WRITE_REG(hw, IXGBE_IVAR(queue >> 1), ivar); | |
855 | break; | |
856 | } | |
857 | default: | |
858 | break; | |
859 | } | |
9a799d71 AK |
860 | } |
861 | ||
fe49f04a | 862 | static inline void ixgbe_irq_rearm_queues(struct ixgbe_adapter *adapter, |
e8e9f696 | 863 | u64 qmask) |
fe49f04a AD |
864 | { |
865 | u32 mask; | |
866 | ||
bd508178 AD |
867 | switch (adapter->hw.mac.type) { |
868 | case ixgbe_mac_82598EB: | |
fe49f04a AD |
869 | mask = (IXGBE_EIMS_RTX_QUEUE & qmask); |
870 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS, mask); | |
bd508178 AD |
871 | break; |
872 | case ixgbe_mac_82599EB: | |
b93a2226 | 873 | case ixgbe_mac_X540: |
fe49f04a AD |
874 | mask = (qmask & 0xFFFFFFFF); |
875 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS_EX(0), mask); | |
876 | mask = (qmask >> 32); | |
877 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS_EX(1), mask); | |
bd508178 AD |
878 | break; |
879 | default: | |
880 | break; | |
fe49f04a AD |
881 | } |
882 | } | |
883 | ||
729739b7 AD |
884 | void ixgbe_unmap_and_free_tx_resource(struct ixgbe_ring *ring, |
885 | struct ixgbe_tx_buffer *tx_buffer) | |
9a799d71 | 886 | { |
729739b7 AD |
887 | if (tx_buffer->skb) { |
888 | dev_kfree_skb_any(tx_buffer->skb); | |
889 | if (dma_unmap_len(tx_buffer, len)) | |
d3d00239 | 890 | dma_unmap_single(ring->dev, |
729739b7 AD |
891 | dma_unmap_addr(tx_buffer, dma), |
892 | dma_unmap_len(tx_buffer, len), | |
893 | DMA_TO_DEVICE); | |
894 | } else if (dma_unmap_len(tx_buffer, len)) { | |
895 | dma_unmap_page(ring->dev, | |
896 | dma_unmap_addr(tx_buffer, dma), | |
897 | dma_unmap_len(tx_buffer, len), | |
898 | DMA_TO_DEVICE); | |
e5a43549 | 899 | } |
729739b7 AD |
900 | tx_buffer->next_to_watch = NULL; |
901 | tx_buffer->skb = NULL; | |
902 | dma_unmap_len_set(tx_buffer, len, 0); | |
903 | /* tx_buffer must be completely set up in the transmit path */ | |
9a799d71 AK |
904 | } |
905 | ||
943561d3 | 906 | static void ixgbe_update_xoff_rx_lfc(struct ixgbe_adapter *adapter) |
c84d324c JF |
907 | { |
908 | struct ixgbe_hw *hw = &adapter->hw; | |
909 | struct ixgbe_hw_stats *hwstats = &adapter->stats; | |
c84d324c | 910 | int i; |
943561d3 | 911 | u32 data; |
c84d324c | 912 | |
943561d3 AD |
913 | if ((hw->fc.current_mode != ixgbe_fc_full) && |
914 | (hw->fc.current_mode != ixgbe_fc_rx_pause)) | |
915 | return; | |
c84d324c | 916 | |
943561d3 AD |
917 | switch (hw->mac.type) { |
918 | case ixgbe_mac_82598EB: | |
919 | data = IXGBE_READ_REG(hw, IXGBE_LXOFFRXC); | |
920 | break; | |
921 | default: | |
922 | data = IXGBE_READ_REG(hw, IXGBE_LXOFFRXCNT); | |
923 | } | |
924 | hwstats->lxoffrxc += data; | |
c84d324c | 925 | |
943561d3 AD |
926 | /* refill credits (no tx hang) if we received xoff */ |
927 | if (!data) | |
c84d324c | 928 | return; |
943561d3 AD |
929 | |
930 | for (i = 0; i < adapter->num_tx_queues; i++) | |
931 | clear_bit(__IXGBE_HANG_CHECK_ARMED, | |
932 | &adapter->tx_ring[i]->state); | |
933 | } | |
934 | ||
935 | static void ixgbe_update_xoff_received(struct ixgbe_adapter *adapter) | |
936 | { | |
937 | struct ixgbe_hw *hw = &adapter->hw; | |
938 | struct ixgbe_hw_stats *hwstats = &adapter->stats; | |
939 | u32 xoff[8] = {0}; | |
2afaa00d | 940 | u8 tc; |
943561d3 AD |
941 | int i; |
942 | bool pfc_en = adapter->dcb_cfg.pfc_mode_enable; | |
943 | ||
944 | if (adapter->ixgbe_ieee_pfc) | |
945 | pfc_en |= !!(adapter->ixgbe_ieee_pfc->pfc_en); | |
946 | ||
947 | if (!(adapter->flags & IXGBE_FLAG_DCB_ENABLED) || !pfc_en) { | |
948 | ixgbe_update_xoff_rx_lfc(adapter); | |
c84d324c | 949 | return; |
943561d3 | 950 | } |
c84d324c JF |
951 | |
952 | /* update stats for each tc, only valid with PFC enabled */ | |
953 | for (i = 0; i < MAX_TX_PACKET_BUFFERS; i++) { | |
2afaa00d PN |
954 | u32 pxoffrxc; |
955 | ||
c84d324c JF |
956 | switch (hw->mac.type) { |
957 | case ixgbe_mac_82598EB: | |
2afaa00d | 958 | pxoffrxc = IXGBE_READ_REG(hw, IXGBE_PXOFFRXC(i)); |
bd508178 | 959 | break; |
c84d324c | 960 | default: |
2afaa00d | 961 | pxoffrxc = IXGBE_READ_REG(hw, IXGBE_PXOFFRXCNT(i)); |
26f23d82 | 962 | } |
2afaa00d PN |
963 | hwstats->pxoffrxc[i] += pxoffrxc; |
964 | /* Get the TC for given UP */ | |
965 | tc = netdev_get_prio_tc_map(adapter->netdev, i); | |
966 | xoff[tc] += pxoffrxc; | |
c84d324c JF |
967 | } |
968 | ||
969 | /* disarm tx queues that have received xoff frames */ | |
970 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
971 | struct ixgbe_ring *tx_ring = adapter->tx_ring[i]; | |
c84d324c | 972 | |
2afaa00d | 973 | tc = tx_ring->dcb_tc; |
c84d324c JF |
974 | if (xoff[tc]) |
975 | clear_bit(__IXGBE_HANG_CHECK_ARMED, &tx_ring->state); | |
26f23d82 | 976 | } |
26f23d82 YZ |
977 | } |
978 | ||
c84d324c | 979 | static u64 ixgbe_get_tx_completed(struct ixgbe_ring *ring) |
9a799d71 | 980 | { |
7d7ce682 | 981 | return ring->stats.packets; |
c84d324c JF |
982 | } |
983 | ||
984 | static u64 ixgbe_get_tx_pending(struct ixgbe_ring *ring) | |
985 | { | |
2a47fa45 JF |
986 | struct ixgbe_adapter *adapter; |
987 | struct ixgbe_hw *hw; | |
988 | u32 head, tail; | |
989 | ||
990 | if (ring->l2_accel_priv) | |
991 | adapter = ring->l2_accel_priv->real_adapter; | |
992 | else | |
993 | adapter = netdev_priv(ring->netdev); | |
e01c31a5 | 994 | |
2a47fa45 JF |
995 | hw = &adapter->hw; |
996 | head = IXGBE_READ_REG(hw, IXGBE_TDH(ring->reg_idx)); | |
997 | tail = IXGBE_READ_REG(hw, IXGBE_TDT(ring->reg_idx)); | |
c84d324c JF |
998 | |
999 | if (head != tail) | |
1000 | return (head < tail) ? | |
1001 | tail - head : (tail + ring->count - head); | |
1002 | ||
1003 | return 0; | |
1004 | } | |
1005 | ||
1006 | static inline bool ixgbe_check_tx_hang(struct ixgbe_ring *tx_ring) | |
1007 | { | |
1008 | u32 tx_done = ixgbe_get_tx_completed(tx_ring); | |
1009 | u32 tx_done_old = tx_ring->tx_stats.tx_done_old; | |
1010 | u32 tx_pending = ixgbe_get_tx_pending(tx_ring); | |
c84d324c | 1011 | |
7d637bcc | 1012 | clear_check_for_tx_hang(tx_ring); |
c84d324c JF |
1013 | |
1014 | /* | |
1015 | * Check for a hung queue, but be thorough. This verifies | |
1016 | * that a transmit has been completed since the previous | |
1017 | * check AND there is at least one packet pending. The | |
1018 | * ARMED bit is set to indicate a potential hang. The | |
1019 | * bit is cleared if a pause frame is received to remove | |
1020 | * false hang detection due to PFC or 802.3x frames. By | |
1021 | * requiring this to fail twice we avoid races with | |
1022 | * pfc clearing the ARMED bit and conditions where we | |
1023 | * run the check_tx_hang logic with a transmit completion | |
1024 | * pending but without time to complete it yet. | |
1025 | */ | |
e90dd264 | 1026 | if (tx_done_old == tx_done && tx_pending) |
c84d324c | 1027 | /* make sure it is true for two checks in a row */ |
e90dd264 MR |
1028 | return test_and_set_bit(__IXGBE_HANG_CHECK_ARMED, |
1029 | &tx_ring->state); | |
1030 | /* update completed stats and continue */ | |
1031 | tx_ring->tx_stats.tx_done_old = tx_done; | |
1032 | /* reset the countdown */ | |
1033 | clear_bit(__IXGBE_HANG_CHECK_ARMED, &tx_ring->state); | |
9a799d71 | 1034 | |
e90dd264 | 1035 | return false; |
9a799d71 AK |
1036 | } |
1037 | ||
c83c6cbd AD |
1038 | /** |
1039 | * ixgbe_tx_timeout_reset - initiate reset due to Tx timeout | |
1040 | * @adapter: driver private struct | |
1041 | **/ | |
1042 | static void ixgbe_tx_timeout_reset(struct ixgbe_adapter *adapter) | |
1043 | { | |
1044 | ||
1045 | /* Do the reset outside of interrupt context */ | |
1046 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { | |
1047 | adapter->flags2 |= IXGBE_FLAG2_RESET_REQUESTED; | |
12ff3f3b | 1048 | e_warn(drv, "initiating reset due to tx timeout\n"); |
c83c6cbd AD |
1049 | ixgbe_service_event_schedule(adapter); |
1050 | } | |
1051 | } | |
e01c31a5 | 1052 | |
9a799d71 AK |
1053 | /** |
1054 | * ixgbe_clean_tx_irq - Reclaim resources after transmit completes | |
fe49f04a | 1055 | * @q_vector: structure containing interrupt and ring information |
e01c31a5 | 1056 | * @tx_ring: tx ring to clean |
9a799d71 | 1057 | **/ |
fe49f04a | 1058 | static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector, |
e8e9f696 | 1059 | struct ixgbe_ring *tx_ring) |
9a799d71 | 1060 | { |
fe49f04a | 1061 | struct ixgbe_adapter *adapter = q_vector->adapter; |
d3d00239 AD |
1062 | struct ixgbe_tx_buffer *tx_buffer; |
1063 | union ixgbe_adv_tx_desc *tx_desc; | |
e01c31a5 | 1064 | unsigned int total_bytes = 0, total_packets = 0; |
59224555 | 1065 | unsigned int budget = q_vector->tx.work_limit; |
729739b7 AD |
1066 | unsigned int i = tx_ring->next_to_clean; |
1067 | ||
1068 | if (test_bit(__IXGBE_DOWN, &adapter->state)) | |
1069 | return true; | |
9a799d71 | 1070 | |
d3d00239 | 1071 | tx_buffer = &tx_ring->tx_buffer_info[i]; |
e4f74028 | 1072 | tx_desc = IXGBE_TX_DESC(tx_ring, i); |
729739b7 | 1073 | i -= tx_ring->count; |
12207e49 | 1074 | |
729739b7 | 1075 | do { |
d3d00239 AD |
1076 | union ixgbe_adv_tx_desc *eop_desc = tx_buffer->next_to_watch; |
1077 | ||
1078 | /* if next_to_watch is not set then there is no work pending */ | |
1079 | if (!eop_desc) | |
1080 | break; | |
1081 | ||
7f83a9e6 | 1082 | /* prevent any other reads prior to eop_desc */ |
7e63bf49 | 1083 | read_barrier_depends(); |
7f83a9e6 | 1084 | |
d3d00239 AD |
1085 | /* if DD is not set pending work has not been completed */ |
1086 | if (!(eop_desc->wb.status & cpu_to_le32(IXGBE_TXD_STAT_DD))) | |
1087 | break; | |
8ad494b0 | 1088 | |
d3d00239 AD |
1089 | /* clear next_to_watch to prevent false hangs */ |
1090 | tx_buffer->next_to_watch = NULL; | |
8ad494b0 | 1091 | |
091a6246 AD |
1092 | /* update the statistics for this packet */ |
1093 | total_bytes += tx_buffer->bytecount; | |
1094 | total_packets += tx_buffer->gso_segs; | |
1095 | ||
fd0db0ed | 1096 | /* free the skb */ |
fe1f2a97 | 1097 | dev_consume_skb_any(tx_buffer->skb); |
fd0db0ed | 1098 | |
729739b7 AD |
1099 | /* unmap skb header data */ |
1100 | dma_unmap_single(tx_ring->dev, | |
1101 | dma_unmap_addr(tx_buffer, dma), | |
1102 | dma_unmap_len(tx_buffer, len), | |
1103 | DMA_TO_DEVICE); | |
1104 | ||
fd0db0ed AD |
1105 | /* clear tx_buffer data */ |
1106 | tx_buffer->skb = NULL; | |
729739b7 | 1107 | dma_unmap_len_set(tx_buffer, len, 0); |
fd0db0ed | 1108 | |
729739b7 AD |
1109 | /* unmap remaining buffers */ |
1110 | while (tx_desc != eop_desc) { | |
d3d00239 AD |
1111 | tx_buffer++; |
1112 | tx_desc++; | |
8ad494b0 | 1113 | i++; |
729739b7 AD |
1114 | if (unlikely(!i)) { |
1115 | i -= tx_ring->count; | |
d3d00239 | 1116 | tx_buffer = tx_ring->tx_buffer_info; |
e4f74028 | 1117 | tx_desc = IXGBE_TX_DESC(tx_ring, 0); |
e092be60 | 1118 | } |
e01c31a5 | 1119 | |
729739b7 AD |
1120 | /* unmap any remaining paged data */ |
1121 | if (dma_unmap_len(tx_buffer, len)) { | |
1122 | dma_unmap_page(tx_ring->dev, | |
1123 | dma_unmap_addr(tx_buffer, dma), | |
1124 | dma_unmap_len(tx_buffer, len), | |
1125 | DMA_TO_DEVICE); | |
1126 | dma_unmap_len_set(tx_buffer, len, 0); | |
1127 | } | |
1128 | } | |
1129 | ||
1130 | /* move us one more past the eop_desc for start of next pkt */ | |
1131 | tx_buffer++; | |
1132 | tx_desc++; | |
1133 | i++; | |
1134 | if (unlikely(!i)) { | |
1135 | i -= tx_ring->count; | |
1136 | tx_buffer = tx_ring->tx_buffer_info; | |
1137 | tx_desc = IXGBE_TX_DESC(tx_ring, 0); | |
1138 | } | |
1139 | ||
1140 | /* issue prefetch for next Tx descriptor */ | |
1141 | prefetch(tx_desc); | |
12207e49 | 1142 | |
729739b7 AD |
1143 | /* update budget accounting */ |
1144 | budget--; | |
1145 | } while (likely(budget)); | |
1146 | ||
1147 | i += tx_ring->count; | |
9a799d71 | 1148 | tx_ring->next_to_clean = i; |
d3d00239 | 1149 | u64_stats_update_begin(&tx_ring->syncp); |
b953799e | 1150 | tx_ring->stats.bytes += total_bytes; |
bd198058 | 1151 | tx_ring->stats.packets += total_packets; |
d3d00239 | 1152 | u64_stats_update_end(&tx_ring->syncp); |
bd198058 AD |
1153 | q_vector->tx.total_bytes += total_bytes; |
1154 | q_vector->tx.total_packets += total_packets; | |
b953799e | 1155 | |
c84d324c JF |
1156 | if (check_for_tx_hang(tx_ring) && ixgbe_check_tx_hang(tx_ring)) { |
1157 | /* schedule immediate reset if we believe we hung */ | |
1158 | struct ixgbe_hw *hw = &adapter->hw; | |
c84d324c JF |
1159 | e_err(drv, "Detected Tx Unit Hang\n" |
1160 | " Tx Queue <%d>\n" | |
1161 | " TDH, TDT <%x>, <%x>\n" | |
1162 | " next_to_use <%x>\n" | |
1163 | " next_to_clean <%x>\n" | |
1164 | "tx_buffer_info[next_to_clean]\n" | |
1165 | " time_stamp <%lx>\n" | |
1166 | " jiffies <%lx>\n", | |
1167 | tx_ring->queue_index, | |
1168 | IXGBE_READ_REG(hw, IXGBE_TDH(tx_ring->reg_idx)), | |
1169 | IXGBE_READ_REG(hw, IXGBE_TDT(tx_ring->reg_idx)), | |
d3d00239 AD |
1170 | tx_ring->next_to_use, i, |
1171 | tx_ring->tx_buffer_info[i].time_stamp, jiffies); | |
c84d324c JF |
1172 | |
1173 | netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index); | |
1174 | ||
1175 | e_info(probe, | |
1176 | "tx hang %d detected on queue %d, resetting adapter\n", | |
1177 | adapter->tx_timeout_count + 1, tx_ring->queue_index); | |
1178 | ||
b953799e | 1179 | /* schedule immediate reset if we believe we hung */ |
c83c6cbd | 1180 | ixgbe_tx_timeout_reset(adapter); |
b953799e AD |
1181 | |
1182 | /* the adapter is about to reset, no point in enabling stuff */ | |
59224555 | 1183 | return true; |
b953799e | 1184 | } |
9a799d71 | 1185 | |
b2d96e0a AD |
1186 | netdev_tx_completed_queue(txring_txq(tx_ring), |
1187 | total_packets, total_bytes); | |
1188 | ||
e092be60 | 1189 | #define TX_WAKE_THRESHOLD (DESC_NEEDED * 2) |
30065e63 | 1190 | if (unlikely(total_packets && netif_carrier_ok(tx_ring->netdev) && |
7d4987de | 1191 | (ixgbe_desc_unused(tx_ring) >= TX_WAKE_THRESHOLD))) { |
e092be60 AV |
1192 | /* Make sure that anybody stopping the queue after this |
1193 | * sees the new next_to_clean. | |
1194 | */ | |
1195 | smp_mb(); | |
729739b7 AD |
1196 | if (__netif_subqueue_stopped(tx_ring->netdev, |
1197 | tx_ring->queue_index) | |
1198 | && !test_bit(__IXGBE_DOWN, &adapter->state)) { | |
1199 | netif_wake_subqueue(tx_ring->netdev, | |
1200 | tx_ring->queue_index); | |
5b7da515 | 1201 | ++tx_ring->tx_stats.restart_queue; |
30eba97a | 1202 | } |
e092be60 | 1203 | } |
9a799d71 | 1204 | |
59224555 | 1205 | return !!budget; |
9a799d71 AK |
1206 | } |
1207 | ||
5dd2d332 | 1208 | #ifdef CONFIG_IXGBE_DCA |
bdda1a61 AD |
1209 | static void ixgbe_update_tx_dca(struct ixgbe_adapter *adapter, |
1210 | struct ixgbe_ring *tx_ring, | |
33cf09c9 | 1211 | int cpu) |
bd0362dd | 1212 | { |
33cf09c9 | 1213 | struct ixgbe_hw *hw = &adapter->hw; |
bdda1a61 AD |
1214 | u32 txctrl = dca3_get_tag(tx_ring->dev, cpu); |
1215 | u16 reg_offset; | |
33cf09c9 | 1216 | |
33cf09c9 AD |
1217 | switch (hw->mac.type) { |
1218 | case ixgbe_mac_82598EB: | |
bdda1a61 | 1219 | reg_offset = IXGBE_DCA_TXCTRL(tx_ring->reg_idx); |
33cf09c9 AD |
1220 | break; |
1221 | case ixgbe_mac_82599EB: | |
b93a2226 | 1222 | case ixgbe_mac_X540: |
bdda1a61 AD |
1223 | reg_offset = IXGBE_DCA_TXCTRL_82599(tx_ring->reg_idx); |
1224 | txctrl <<= IXGBE_DCA_TXCTRL_CPUID_SHIFT_82599; | |
33cf09c9 AD |
1225 | break; |
1226 | default: | |
bdda1a61 AD |
1227 | /* for unknown hardware do not write register */ |
1228 | return; | |
bd0362dd | 1229 | } |
bdda1a61 AD |
1230 | |
1231 | /* | |
1232 | * We can enable relaxed ordering for reads, but not writes when | |
1233 | * DCA is enabled. This is due to a known issue in some chipsets | |
1234 | * which will cause the DCA tag to be cleared. | |
1235 | */ | |
1236 | txctrl |= IXGBE_DCA_TXCTRL_DESC_RRO_EN | | |
1237 | IXGBE_DCA_TXCTRL_DATA_RRO_EN | | |
1238 | IXGBE_DCA_TXCTRL_DESC_DCA_EN; | |
1239 | ||
1240 | IXGBE_WRITE_REG(hw, reg_offset, txctrl); | |
bd0362dd JC |
1241 | } |
1242 | ||
bdda1a61 AD |
1243 | static void ixgbe_update_rx_dca(struct ixgbe_adapter *adapter, |
1244 | struct ixgbe_ring *rx_ring, | |
33cf09c9 | 1245 | int cpu) |
bd0362dd | 1246 | { |
33cf09c9 | 1247 | struct ixgbe_hw *hw = &adapter->hw; |
bdda1a61 AD |
1248 | u32 rxctrl = dca3_get_tag(rx_ring->dev, cpu); |
1249 | u8 reg_idx = rx_ring->reg_idx; | |
1250 | ||
33cf09c9 AD |
1251 | |
1252 | switch (hw->mac.type) { | |
33cf09c9 | 1253 | case ixgbe_mac_82599EB: |
b93a2226 | 1254 | case ixgbe_mac_X540: |
bdda1a61 | 1255 | rxctrl <<= IXGBE_DCA_RXCTRL_CPUID_SHIFT_82599; |
33cf09c9 AD |
1256 | break; |
1257 | default: | |
1258 | break; | |
1259 | } | |
bdda1a61 AD |
1260 | |
1261 | /* | |
1262 | * We can enable relaxed ordering for reads, but not writes when | |
1263 | * DCA is enabled. This is due to a known issue in some chipsets | |
1264 | * which will cause the DCA tag to be cleared. | |
1265 | */ | |
1266 | rxctrl |= IXGBE_DCA_RXCTRL_DESC_RRO_EN | | |
bdda1a61 AD |
1267 | IXGBE_DCA_RXCTRL_DESC_DCA_EN; |
1268 | ||
1269 | IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(reg_idx), rxctrl); | |
33cf09c9 AD |
1270 | } |
1271 | ||
1272 | static void ixgbe_update_dca(struct ixgbe_q_vector *q_vector) | |
1273 | { | |
1274 | struct ixgbe_adapter *adapter = q_vector->adapter; | |
efe3d3c8 | 1275 | struct ixgbe_ring *ring; |
bd0362dd | 1276 | int cpu = get_cpu(); |
bd0362dd | 1277 | |
33cf09c9 AD |
1278 | if (q_vector->cpu == cpu) |
1279 | goto out_no_update; | |
1280 | ||
a557928e | 1281 | ixgbe_for_each_ring(ring, q_vector->tx) |
efe3d3c8 | 1282 | ixgbe_update_tx_dca(adapter, ring, cpu); |
33cf09c9 | 1283 | |
a557928e | 1284 | ixgbe_for_each_ring(ring, q_vector->rx) |
efe3d3c8 | 1285 | ixgbe_update_rx_dca(adapter, ring, cpu); |
33cf09c9 AD |
1286 | |
1287 | q_vector->cpu = cpu; | |
1288 | out_no_update: | |
bd0362dd JC |
1289 | put_cpu(); |
1290 | } | |
1291 | ||
1292 | static void ixgbe_setup_dca(struct ixgbe_adapter *adapter) | |
1293 | { | |
1294 | int i; | |
1295 | ||
1296 | if (!(adapter->flags & IXGBE_FLAG_DCA_ENABLED)) | |
1297 | return; | |
1298 | ||
e35ec126 AD |
1299 | /* always use CB2 mode, difference is masked in the CB driver */ |
1300 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, 2); | |
1301 | ||
49c7ffbe | 1302 | for (i = 0; i < adapter->num_q_vectors; i++) { |
33cf09c9 AD |
1303 | adapter->q_vector[i]->cpu = -1; |
1304 | ixgbe_update_dca(adapter->q_vector[i]); | |
bd0362dd JC |
1305 | } |
1306 | } | |
1307 | ||
1308 | static int __ixgbe_notify_dca(struct device *dev, void *data) | |
1309 | { | |
c60fbb00 | 1310 | struct ixgbe_adapter *adapter = dev_get_drvdata(dev); |
bd0362dd JC |
1311 | unsigned long event = *(unsigned long *)data; |
1312 | ||
2a72c31e | 1313 | if (!(adapter->flags & IXGBE_FLAG_DCA_CAPABLE)) |
33cf09c9 AD |
1314 | return 0; |
1315 | ||
bd0362dd JC |
1316 | switch (event) { |
1317 | case DCA_PROVIDER_ADD: | |
96b0e0f6 JB |
1318 | /* if we're already enabled, don't do it again */ |
1319 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) | |
1320 | break; | |
652f093f | 1321 | if (dca_add_requester(dev) == 0) { |
96b0e0f6 | 1322 | adapter->flags |= IXGBE_FLAG_DCA_ENABLED; |
bd0362dd JC |
1323 | ixgbe_setup_dca(adapter); |
1324 | break; | |
1325 | } | |
1326 | /* Fall Through since DCA is disabled. */ | |
1327 | case DCA_PROVIDER_REMOVE: | |
1328 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) { | |
1329 | dca_remove_requester(dev); | |
1330 | adapter->flags &= ~IXGBE_FLAG_DCA_ENABLED; | |
1331 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, 1); | |
1332 | } | |
1333 | break; | |
1334 | } | |
1335 | ||
652f093f | 1336 | return 0; |
bd0362dd | 1337 | } |
67a74ee2 | 1338 | |
bdda1a61 | 1339 | #endif /* CONFIG_IXGBE_DCA */ |
8a0da21b AD |
1340 | static inline void ixgbe_rx_hash(struct ixgbe_ring *ring, |
1341 | union ixgbe_adv_rx_desc *rx_desc, | |
67a74ee2 ET |
1342 | struct sk_buff *skb) |
1343 | { | |
8a0da21b | 1344 | if (ring->netdev->features & NETIF_F_RXHASH) |
38da9853 TH |
1345 | skb_set_hash(skb, |
1346 | le32_to_cpu(rx_desc->wb.lower.hi_dword.rss), | |
1347 | PKT_HASH_TYPE_L3); | |
67a74ee2 ET |
1348 | } |
1349 | ||
f800326d | 1350 | #ifdef IXGBE_FCOE |
ff886dfc AD |
1351 | /** |
1352 | * ixgbe_rx_is_fcoe - check the rx desc for incoming pkt type | |
57efd44c | 1353 | * @ring: structure containing ring specific data |
ff886dfc AD |
1354 | * @rx_desc: advanced rx descriptor |
1355 | * | |
1356 | * Returns : true if it is FCoE pkt | |
1357 | */ | |
57efd44c | 1358 | static inline bool ixgbe_rx_is_fcoe(struct ixgbe_ring *ring, |
ff886dfc AD |
1359 | union ixgbe_adv_rx_desc *rx_desc) |
1360 | { | |
1361 | __le16 pkt_info = rx_desc->wb.lower.lo_dword.hs_rss.pkt_info; | |
1362 | ||
57efd44c | 1363 | return test_bit(__IXGBE_RX_FCOE, &ring->state) && |
ff886dfc AD |
1364 | ((pkt_info & cpu_to_le16(IXGBE_RXDADV_PKTTYPE_ETQF_MASK)) == |
1365 | (cpu_to_le16(IXGBE_ETQF_FILTER_FCOE << | |
1366 | IXGBE_RXDADV_PKTTYPE_ETQF_SHIFT))); | |
1367 | } | |
1368 | ||
f800326d | 1369 | #endif /* IXGBE_FCOE */ |
e59bd25d AV |
1370 | /** |
1371 | * ixgbe_rx_checksum - indicate in skb if hw indicated a good cksum | |
8a0da21b AD |
1372 | * @ring: structure containing ring specific data |
1373 | * @rx_desc: current Rx descriptor being processed | |
e59bd25d AV |
1374 | * @skb: skb currently being received and modified |
1375 | **/ | |
8a0da21b | 1376 | static inline void ixgbe_rx_checksum(struct ixgbe_ring *ring, |
8bae1b2b | 1377 | union ixgbe_adv_rx_desc *rx_desc, |
f56e0cb1 | 1378 | struct sk_buff *skb) |
9a799d71 | 1379 | { |
8a0da21b | 1380 | skb_checksum_none_assert(skb); |
9a799d71 | 1381 | |
712744be | 1382 | /* Rx csum disabled */ |
8a0da21b | 1383 | if (!(ring->netdev->features & NETIF_F_RXCSUM)) |
9a799d71 | 1384 | return; |
e59bd25d AV |
1385 | |
1386 | /* if IP and error */ | |
f56e0cb1 AD |
1387 | if (ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_IPCS) && |
1388 | ixgbe_test_staterr(rx_desc, IXGBE_RXDADV_ERR_IPE)) { | |
8a0da21b | 1389 | ring->rx_stats.csum_err++; |
9a799d71 AK |
1390 | return; |
1391 | } | |
e59bd25d | 1392 | |
f56e0cb1 | 1393 | if (!ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_L4CS)) |
e59bd25d AV |
1394 | return; |
1395 | ||
f56e0cb1 | 1396 | if (ixgbe_test_staterr(rx_desc, IXGBE_RXDADV_ERR_TCPE)) { |
f800326d | 1397 | __le16 pkt_info = rx_desc->wb.lower.lo_dword.hs_rss.pkt_info; |
8bae1b2b DS |
1398 | |
1399 | /* | |
1400 | * 82599 errata, UDP frames with a 0 checksum can be marked as | |
1401 | * checksum errors. | |
1402 | */ | |
8a0da21b AD |
1403 | if ((pkt_info & cpu_to_le16(IXGBE_RXDADV_PKTTYPE_UDP)) && |
1404 | test_bit(__IXGBE_RX_CSUM_UDP_ZERO_ERR, &ring->state)) | |
8bae1b2b DS |
1405 | return; |
1406 | ||
8a0da21b | 1407 | ring->rx_stats.csum_err++; |
e59bd25d AV |
1408 | return; |
1409 | } | |
1410 | ||
9a799d71 | 1411 | /* It must be a TCP or UDP packet with a valid checksum */ |
e59bd25d | 1412 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
9a799d71 AK |
1413 | } |
1414 | ||
84ea2591 | 1415 | static inline void ixgbe_release_rx_desc(struct ixgbe_ring *rx_ring, u32 val) |
e8e26350 | 1416 | { |
f56e0cb1 | 1417 | rx_ring->next_to_use = val; |
f800326d AD |
1418 | |
1419 | /* update next to alloc since we have filled the ring */ | |
1420 | rx_ring->next_to_alloc = val; | |
e8e26350 PW |
1421 | /* |
1422 | * Force memory writes to complete before letting h/w | |
1423 | * know there are new descriptors to fetch. (Only | |
1424 | * applicable for weak-ordered memory model archs, | |
1425 | * such as IA-64). | |
1426 | */ | |
1427 | wmb(); | |
84227bcd | 1428 | ixgbe_write_tail(rx_ring, val); |
e8e26350 PW |
1429 | } |
1430 | ||
f990b79b AD |
1431 | static bool ixgbe_alloc_mapped_page(struct ixgbe_ring *rx_ring, |
1432 | struct ixgbe_rx_buffer *bi) | |
1433 | { | |
1434 | struct page *page = bi->page; | |
f800326d | 1435 | dma_addr_t dma = bi->dma; |
f990b79b | 1436 | |
f800326d AD |
1437 | /* since we are recycling buffers we should seldom need to alloc */ |
1438 | if (likely(dma)) | |
f990b79b AD |
1439 | return true; |
1440 | ||
f800326d AD |
1441 | /* alloc new page for storage */ |
1442 | if (likely(!page)) { | |
0614002b MG |
1443 | page = __skb_alloc_pages(GFP_ATOMIC | __GFP_COLD | __GFP_COMP, |
1444 | bi->skb, ixgbe_rx_pg_order(rx_ring)); | |
f990b79b AD |
1445 | if (unlikely(!page)) { |
1446 | rx_ring->rx_stats.alloc_rx_page_failed++; | |
1447 | return false; | |
1448 | } | |
f800326d | 1449 | bi->page = page; |
f990b79b AD |
1450 | } |
1451 | ||
f800326d AD |
1452 | /* map page for use */ |
1453 | dma = dma_map_page(rx_ring->dev, page, 0, | |
1454 | ixgbe_rx_pg_size(rx_ring), DMA_FROM_DEVICE); | |
1455 | ||
1456 | /* | |
1457 | * if mapping failed free memory back to system since | |
1458 | * there isn't much point in holding memory we can't use | |
1459 | */ | |
1460 | if (dma_mapping_error(rx_ring->dev, dma)) { | |
dd411ec4 | 1461 | __free_pages(page, ixgbe_rx_pg_order(rx_ring)); |
f800326d | 1462 | bi->page = NULL; |
f990b79b | 1463 | |
f990b79b AD |
1464 | rx_ring->rx_stats.alloc_rx_page_failed++; |
1465 | return false; | |
1466 | } | |
1467 | ||
f800326d | 1468 | bi->dma = dma; |
afaa9459 | 1469 | bi->page_offset = 0; |
f800326d | 1470 | |
f990b79b AD |
1471 | return true; |
1472 | } | |
1473 | ||
9a799d71 | 1474 | /** |
f990b79b | 1475 | * ixgbe_alloc_rx_buffers - Replace used receive buffers |
fc77dc3c AD |
1476 | * @rx_ring: ring to place buffers on |
1477 | * @cleaned_count: number of buffers to replace | |
9a799d71 | 1478 | **/ |
fc77dc3c | 1479 | void ixgbe_alloc_rx_buffers(struct ixgbe_ring *rx_ring, u16 cleaned_count) |
9a799d71 | 1480 | { |
9a799d71 | 1481 | union ixgbe_adv_rx_desc *rx_desc; |
3a581073 | 1482 | struct ixgbe_rx_buffer *bi; |
d5f398ed | 1483 | u16 i = rx_ring->next_to_use; |
9a799d71 | 1484 | |
f800326d AD |
1485 | /* nothing to do */ |
1486 | if (!cleaned_count) | |
fc77dc3c AD |
1487 | return; |
1488 | ||
e4f74028 | 1489 | rx_desc = IXGBE_RX_DESC(rx_ring, i); |
f990b79b AD |
1490 | bi = &rx_ring->rx_buffer_info[i]; |
1491 | i -= rx_ring->count; | |
9a799d71 | 1492 | |
f800326d AD |
1493 | do { |
1494 | if (!ixgbe_alloc_mapped_page(rx_ring, bi)) | |
f990b79b | 1495 | break; |
d5f398ed | 1496 | |
f800326d AD |
1497 | /* |
1498 | * Refresh the desc even if buffer_addrs didn't change | |
1499 | * because each write-back erases this info. | |
1500 | */ | |
1501 | rx_desc->read.pkt_addr = cpu_to_le64(bi->dma + bi->page_offset); | |
9a799d71 | 1502 | |
f990b79b AD |
1503 | rx_desc++; |
1504 | bi++; | |
9a799d71 | 1505 | i++; |
f990b79b | 1506 | if (unlikely(!i)) { |
e4f74028 | 1507 | rx_desc = IXGBE_RX_DESC(rx_ring, 0); |
f990b79b AD |
1508 | bi = rx_ring->rx_buffer_info; |
1509 | i -= rx_ring->count; | |
1510 | } | |
1511 | ||
1512 | /* clear the hdr_addr for the next_to_use descriptor */ | |
1513 | rx_desc->read.hdr_addr = 0; | |
f800326d AD |
1514 | |
1515 | cleaned_count--; | |
1516 | } while (cleaned_count); | |
7c6e0a43 | 1517 | |
f990b79b AD |
1518 | i += rx_ring->count; |
1519 | ||
f56e0cb1 | 1520 | if (rx_ring->next_to_use != i) |
84ea2591 | 1521 | ixgbe_release_rx_desc(rx_ring, i); |
9a799d71 AK |
1522 | } |
1523 | ||
1d2024f6 AD |
1524 | static void ixgbe_set_rsc_gso_size(struct ixgbe_ring *ring, |
1525 | struct sk_buff *skb) | |
1526 | { | |
f800326d | 1527 | u16 hdr_len = skb_headlen(skb); |
1d2024f6 AD |
1528 | |
1529 | /* set gso_size to avoid messing up TCP MSS */ | |
1530 | skb_shinfo(skb)->gso_size = DIV_ROUND_UP((skb->len - hdr_len), | |
1531 | IXGBE_CB(skb)->append_cnt); | |
96be80ab | 1532 | skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4; |
1d2024f6 AD |
1533 | } |
1534 | ||
1535 | static void ixgbe_update_rsc_stats(struct ixgbe_ring *rx_ring, | |
1536 | struct sk_buff *skb) | |
1537 | { | |
1538 | /* if append_cnt is 0 then frame is not RSC */ | |
1539 | if (!IXGBE_CB(skb)->append_cnt) | |
1540 | return; | |
1541 | ||
1542 | rx_ring->rx_stats.rsc_count += IXGBE_CB(skb)->append_cnt; | |
1543 | rx_ring->rx_stats.rsc_flush++; | |
1544 | ||
1545 | ixgbe_set_rsc_gso_size(rx_ring, skb); | |
1546 | ||
1547 | /* gso_size is computed using append_cnt so always clear it last */ | |
1548 | IXGBE_CB(skb)->append_cnt = 0; | |
1549 | } | |
1550 | ||
8a0da21b AD |
1551 | /** |
1552 | * ixgbe_process_skb_fields - Populate skb header fields from Rx descriptor | |
1553 | * @rx_ring: rx descriptor ring packet is being transacted on | |
1554 | * @rx_desc: pointer to the EOP Rx descriptor | |
1555 | * @skb: pointer to current skb being populated | |
f8212f97 | 1556 | * |
8a0da21b AD |
1557 | * This function checks the ring, descriptor, and packet information in |
1558 | * order to populate the hash, checksum, VLAN, timestamp, protocol, and | |
1559 | * other fields within the skb. | |
f8212f97 | 1560 | **/ |
8a0da21b AD |
1561 | static void ixgbe_process_skb_fields(struct ixgbe_ring *rx_ring, |
1562 | union ixgbe_adv_rx_desc *rx_desc, | |
1563 | struct sk_buff *skb) | |
f8212f97 | 1564 | { |
43e95f11 JF |
1565 | struct net_device *dev = rx_ring->netdev; |
1566 | ||
8a0da21b AD |
1567 | ixgbe_update_rsc_stats(rx_ring, skb); |
1568 | ||
1569 | ixgbe_rx_hash(rx_ring, rx_desc, skb); | |
f8212f97 | 1570 | |
8a0da21b AD |
1571 | ixgbe_rx_checksum(rx_ring, rx_desc, skb); |
1572 | ||
eda183c2 JK |
1573 | if (unlikely(ixgbe_test_staterr(rx_desc, IXGBE_RXDADV_STAT_TS))) |
1574 | ixgbe_ptp_rx_hwtstamp(rx_ring->q_vector->adapter, skb); | |
3a6a4eda | 1575 | |
f646968f | 1576 | if ((dev->features & NETIF_F_HW_VLAN_CTAG_RX) && |
43e95f11 | 1577 | ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_VP)) { |
8a0da21b | 1578 | u16 vid = le16_to_cpu(rx_desc->wb.upper.vlan); |
86a9bad3 | 1579 | __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vid); |
f8212f97 AD |
1580 | } |
1581 | ||
8a0da21b | 1582 | skb_record_rx_queue(skb, rx_ring->queue_index); |
aa80175a | 1583 | |
43e95f11 | 1584 | skb->protocol = eth_type_trans(skb, dev); |
f8212f97 AD |
1585 | } |
1586 | ||
8a0da21b AD |
1587 | static void ixgbe_rx_skb(struct ixgbe_q_vector *q_vector, |
1588 | struct sk_buff *skb) | |
aa80175a | 1589 | { |
8a0da21b AD |
1590 | struct ixgbe_adapter *adapter = q_vector->adapter; |
1591 | ||
b4640030 | 1592 | if (ixgbe_qv_busy_polling(q_vector)) |
5a85e737 ET |
1593 | netif_receive_skb(skb); |
1594 | else if (!(adapter->flags & IXGBE_FLAG_IN_NETPOLL)) | |
8a0da21b AD |
1595 | napi_gro_receive(&q_vector->napi, skb); |
1596 | else | |
1597 | netif_rx(skb); | |
aa80175a | 1598 | } |
43634e82 | 1599 | |
f800326d AD |
1600 | /** |
1601 | * ixgbe_is_non_eop - process handling of non-EOP buffers | |
1602 | * @rx_ring: Rx ring being processed | |
1603 | * @rx_desc: Rx descriptor for current buffer | |
1604 | * @skb: Current socket buffer containing buffer in progress | |
1605 | * | |
1606 | * This function updates next to clean. If the buffer is an EOP buffer | |
1607 | * this function exits returning false, otherwise it will place the | |
1608 | * sk_buff in the next buffer to be chained and return true indicating | |
1609 | * that this is in fact a non-EOP buffer. | |
1610 | **/ | |
1611 | static bool ixgbe_is_non_eop(struct ixgbe_ring *rx_ring, | |
1612 | union ixgbe_adv_rx_desc *rx_desc, | |
1613 | struct sk_buff *skb) | |
1614 | { | |
1615 | u32 ntc = rx_ring->next_to_clean + 1; | |
1616 | ||
1617 | /* fetch, update, and store next to clean */ | |
1618 | ntc = (ntc < rx_ring->count) ? ntc : 0; | |
1619 | rx_ring->next_to_clean = ntc; | |
1620 | ||
1621 | prefetch(IXGBE_RX_DESC(rx_ring, ntc)); | |
1622 | ||
5a02cbd1 AD |
1623 | /* update RSC append count if present */ |
1624 | if (ring_is_rsc_enabled(rx_ring)) { | |
1625 | __le32 rsc_enabled = rx_desc->wb.lower.lo_dword.data & | |
1626 | cpu_to_le32(IXGBE_RXDADV_RSCCNT_MASK); | |
1627 | ||
1628 | if (unlikely(rsc_enabled)) { | |
1629 | u32 rsc_cnt = le32_to_cpu(rsc_enabled); | |
1630 | ||
1631 | rsc_cnt >>= IXGBE_RXDADV_RSCCNT_SHIFT; | |
1632 | IXGBE_CB(skb)->append_cnt += rsc_cnt - 1; | |
f800326d | 1633 | |
5a02cbd1 AD |
1634 | /* update ntc based on RSC value */ |
1635 | ntc = le32_to_cpu(rx_desc->wb.upper.status_error); | |
1636 | ntc &= IXGBE_RXDADV_NEXTP_MASK; | |
1637 | ntc >>= IXGBE_RXDADV_NEXTP_SHIFT; | |
1638 | } | |
f800326d AD |
1639 | } |
1640 | ||
5a02cbd1 AD |
1641 | /* if we are the last buffer then there is nothing else to do */ |
1642 | if (likely(ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_EOP))) | |
1643 | return false; | |
1644 | ||
f800326d AD |
1645 | /* place skb in next buffer to be received */ |
1646 | rx_ring->rx_buffer_info[ntc].skb = skb; | |
1647 | rx_ring->rx_stats.non_eop_descs++; | |
1648 | ||
1649 | return true; | |
1650 | } | |
1651 | ||
19861ce2 AD |
1652 | /** |
1653 | * ixgbe_pull_tail - ixgbe specific version of skb_pull_tail | |
1654 | * @rx_ring: rx descriptor ring packet is being transacted on | |
1655 | * @skb: pointer to current skb being adjusted | |
1656 | * | |
1657 | * This function is an ixgbe specific version of __pskb_pull_tail. The | |
1658 | * main difference between this version and the original function is that | |
1659 | * this function can make several assumptions about the state of things | |
1660 | * that allow for significant optimizations versus the standard function. | |
1661 | * As a result we can do things like drop a frag and maintain an accurate | |
1662 | * truesize for the skb. | |
1663 | */ | |
1664 | static void ixgbe_pull_tail(struct ixgbe_ring *rx_ring, | |
1665 | struct sk_buff *skb) | |
1666 | { | |
1667 | struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[0]; | |
1668 | unsigned char *va; | |
1669 | unsigned int pull_len; | |
1670 | ||
1671 | /* | |
1672 | * it is valid to use page_address instead of kmap since we are | |
1673 | * working with pages allocated out of the lomem pool per | |
1674 | * alloc_page(GFP_ATOMIC) | |
1675 | */ | |
1676 | va = skb_frag_address(frag); | |
1677 | ||
1678 | /* | |
1679 | * we need the header to contain the greater of either ETH_HLEN or | |
1680 | * 60 bytes if the skb->len is less than 60 for skb_pad. | |
1681 | */ | |
8496e338 | 1682 | pull_len = eth_get_headlen(va, IXGBE_RX_HDR_SIZE); |
19861ce2 AD |
1683 | |
1684 | /* align pull length to size of long to optimize memcpy performance */ | |
1685 | skb_copy_to_linear_data(skb, va, ALIGN(pull_len, sizeof(long))); | |
1686 | ||
1687 | /* update all of the pointers */ | |
1688 | skb_frag_size_sub(frag, pull_len); | |
1689 | frag->page_offset += pull_len; | |
1690 | skb->data_len -= pull_len; | |
1691 | skb->tail += pull_len; | |
19861ce2 AD |
1692 | } |
1693 | ||
42073d91 AD |
1694 | /** |
1695 | * ixgbe_dma_sync_frag - perform DMA sync for first frag of SKB | |
1696 | * @rx_ring: rx descriptor ring packet is being transacted on | |
1697 | * @skb: pointer to current skb being updated | |
1698 | * | |
1699 | * This function provides a basic DMA sync up for the first fragment of an | |
1700 | * skb. The reason for doing this is that the first fragment cannot be | |
1701 | * unmapped until we have reached the end of packet descriptor for a buffer | |
1702 | * chain. | |
1703 | */ | |
1704 | static void ixgbe_dma_sync_frag(struct ixgbe_ring *rx_ring, | |
1705 | struct sk_buff *skb) | |
1706 | { | |
1707 | /* if the page was released unmap it, else just sync our portion */ | |
1708 | if (unlikely(IXGBE_CB(skb)->page_released)) { | |
1709 | dma_unmap_page(rx_ring->dev, IXGBE_CB(skb)->dma, | |
1710 | ixgbe_rx_pg_size(rx_ring), DMA_FROM_DEVICE); | |
1711 | IXGBE_CB(skb)->page_released = false; | |
1712 | } else { | |
1713 | struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[0]; | |
1714 | ||
1715 | dma_sync_single_range_for_cpu(rx_ring->dev, | |
1716 | IXGBE_CB(skb)->dma, | |
1717 | frag->page_offset, | |
1718 | ixgbe_rx_bufsz(rx_ring), | |
1719 | DMA_FROM_DEVICE); | |
1720 | } | |
1721 | IXGBE_CB(skb)->dma = 0; | |
1722 | } | |
1723 | ||
f800326d AD |
1724 | /** |
1725 | * ixgbe_cleanup_headers - Correct corrupted or empty headers | |
1726 | * @rx_ring: rx descriptor ring packet is being transacted on | |
1727 | * @rx_desc: pointer to the EOP Rx descriptor | |
1728 | * @skb: pointer to current skb being fixed | |
1729 | * | |
1730 | * Check for corrupted packet headers caused by senders on the local L2 | |
1731 | * embedded NIC switch not setting up their Tx Descriptors right. These | |
1732 | * should be very rare. | |
1733 | * | |
1734 | * Also address the case where we are pulling data in on pages only | |
1735 | * and as such no data is present in the skb header. | |
1736 | * | |
1737 | * In addition if skb is not at least 60 bytes we need to pad it so that | |
1738 | * it is large enough to qualify as a valid Ethernet frame. | |
1739 | * | |
1740 | * Returns true if an error was encountered and skb was freed. | |
1741 | **/ | |
1742 | static bool ixgbe_cleanup_headers(struct ixgbe_ring *rx_ring, | |
1743 | union ixgbe_adv_rx_desc *rx_desc, | |
1744 | struct sk_buff *skb) | |
1745 | { | |
f800326d | 1746 | struct net_device *netdev = rx_ring->netdev; |
f800326d AD |
1747 | |
1748 | /* verify that the packet does not have any known errors */ | |
1749 | if (unlikely(ixgbe_test_staterr(rx_desc, | |
1750 | IXGBE_RXDADV_ERR_FRAME_ERR_MASK) && | |
1751 | !(netdev->features & NETIF_F_RXALL))) { | |
1752 | dev_kfree_skb_any(skb); | |
1753 | return true; | |
1754 | } | |
1755 | ||
19861ce2 | 1756 | /* place header in linear portion of buffer */ |
cf3fe7ac AD |
1757 | if (skb_is_nonlinear(skb)) |
1758 | ixgbe_pull_tail(rx_ring, skb); | |
f800326d | 1759 | |
57efd44c AD |
1760 | #ifdef IXGBE_FCOE |
1761 | /* do not attempt to pad FCoE Frames as this will disrupt DDP */ | |
1762 | if (ixgbe_rx_is_fcoe(rx_ring, rx_desc)) | |
1763 | return false; | |
1764 | ||
1765 | #endif | |
f800326d AD |
1766 | /* if skb_pad returns an error the skb was freed */ |
1767 | if (unlikely(skb->len < 60)) { | |
1768 | int pad_len = 60 - skb->len; | |
1769 | ||
1770 | if (skb_pad(skb, pad_len)) | |
1771 | return true; | |
1772 | __skb_put(skb, pad_len); | |
1773 | } | |
1774 | ||
1775 | return false; | |
1776 | } | |
1777 | ||
f800326d AD |
1778 | /** |
1779 | * ixgbe_reuse_rx_page - page flip buffer and store it back on the ring | |
1780 | * @rx_ring: rx descriptor ring to store buffers on | |
1781 | * @old_buff: donor buffer to have page reused | |
1782 | * | |
0549ae20 | 1783 | * Synchronizes page for reuse by the adapter |
f800326d AD |
1784 | **/ |
1785 | static void ixgbe_reuse_rx_page(struct ixgbe_ring *rx_ring, | |
1786 | struct ixgbe_rx_buffer *old_buff) | |
1787 | { | |
1788 | struct ixgbe_rx_buffer *new_buff; | |
1789 | u16 nta = rx_ring->next_to_alloc; | |
f800326d AD |
1790 | |
1791 | new_buff = &rx_ring->rx_buffer_info[nta]; | |
1792 | ||
1793 | /* update, and store next to alloc */ | |
1794 | nta++; | |
1795 | rx_ring->next_to_alloc = (nta < rx_ring->count) ? nta : 0; | |
1796 | ||
1797 | /* transfer page from old buffer to new buffer */ | |
1798 | new_buff->page = old_buff->page; | |
1799 | new_buff->dma = old_buff->dma; | |
0549ae20 | 1800 | new_buff->page_offset = old_buff->page_offset; |
f800326d AD |
1801 | |
1802 | /* sync the buffer for use by the device */ | |
1803 | dma_sync_single_range_for_device(rx_ring->dev, new_buff->dma, | |
0549ae20 AD |
1804 | new_buff->page_offset, |
1805 | ixgbe_rx_bufsz(rx_ring), | |
f800326d | 1806 | DMA_FROM_DEVICE); |
f800326d AD |
1807 | } |
1808 | ||
1809 | /** | |
1810 | * ixgbe_add_rx_frag - Add contents of Rx buffer to sk_buff | |
1811 | * @rx_ring: rx descriptor ring to transact packets on | |
1812 | * @rx_buffer: buffer containing page to add | |
1813 | * @rx_desc: descriptor containing length of buffer written by hardware | |
1814 | * @skb: sk_buff to place the data into | |
1815 | * | |
0549ae20 AD |
1816 | * This function will add the data contained in rx_buffer->page to the skb. |
1817 | * This is done either through a direct copy if the data in the buffer is | |
1818 | * less than the skb header size, otherwise it will just attach the page as | |
1819 | * a frag to the skb. | |
1820 | * | |
1821 | * The function will then update the page offset if necessary and return | |
1822 | * true if the buffer can be reused by the adapter. | |
f800326d | 1823 | **/ |
0549ae20 | 1824 | static bool ixgbe_add_rx_frag(struct ixgbe_ring *rx_ring, |
f800326d | 1825 | struct ixgbe_rx_buffer *rx_buffer, |
0549ae20 AD |
1826 | union ixgbe_adv_rx_desc *rx_desc, |
1827 | struct sk_buff *skb) | |
f800326d | 1828 | { |
0549ae20 AD |
1829 | struct page *page = rx_buffer->page; |
1830 | unsigned int size = le16_to_cpu(rx_desc->wb.upper.length); | |
09816fbe | 1831 | #if (PAGE_SIZE < 8192) |
0549ae20 | 1832 | unsigned int truesize = ixgbe_rx_bufsz(rx_ring); |
09816fbe AD |
1833 | #else |
1834 | unsigned int truesize = ALIGN(size, L1_CACHE_BYTES); | |
1835 | unsigned int last_offset = ixgbe_rx_pg_size(rx_ring) - | |
1836 | ixgbe_rx_bufsz(rx_ring); | |
1837 | #endif | |
0549ae20 | 1838 | |
cf3fe7ac AD |
1839 | if ((size <= IXGBE_RX_HDR_SIZE) && !skb_is_nonlinear(skb)) { |
1840 | unsigned char *va = page_address(page) + rx_buffer->page_offset; | |
1841 | ||
1842 | memcpy(__skb_put(skb, size), va, ALIGN(size, sizeof(long))); | |
1843 | ||
1844 | /* we can reuse buffer as-is, just make sure it is local */ | |
1845 | if (likely(page_to_nid(page) == numa_node_id())) | |
1846 | return true; | |
1847 | ||
1848 | /* this page cannot be reused so discard it */ | |
1849 | put_page(page); | |
1850 | return false; | |
1851 | } | |
1852 | ||
0549ae20 AD |
1853 | skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page, |
1854 | rx_buffer->page_offset, size, truesize); | |
1855 | ||
09816fbe AD |
1856 | /* avoid re-using remote pages */ |
1857 | if (unlikely(page_to_nid(page) != numa_node_id())) | |
1858 | return false; | |
1859 | ||
1860 | #if (PAGE_SIZE < 8192) | |
1861 | /* if we are only owner of page we can reuse it */ | |
1862 | if (unlikely(page_count(page) != 1)) | |
0549ae20 AD |
1863 | return false; |
1864 | ||
1865 | /* flip page offset to other buffer */ | |
1866 | rx_buffer->page_offset ^= truesize; | |
1867 | ||
ec916983 ED |
1868 | /* Even if we own the page, we are not allowed to use atomic_set() |
1869 | * This would break get_page_unless_zero() users. | |
09816fbe | 1870 | */ |
ec916983 | 1871 | atomic_inc(&page->_count); |
09816fbe AD |
1872 | #else |
1873 | /* move offset up to the next cache line */ | |
1874 | rx_buffer->page_offset += truesize; | |
1875 | ||
1876 | if (rx_buffer->page_offset > last_offset) | |
1877 | return false; | |
1878 | ||
0549ae20 AD |
1879 | /* bump ref count on page before it is given to the stack */ |
1880 | get_page(page); | |
09816fbe | 1881 | #endif |
0549ae20 AD |
1882 | |
1883 | return true; | |
f800326d AD |
1884 | } |
1885 | ||
18806c9e AD |
1886 | static struct sk_buff *ixgbe_fetch_rx_buffer(struct ixgbe_ring *rx_ring, |
1887 | union ixgbe_adv_rx_desc *rx_desc) | |
1888 | { | |
1889 | struct ixgbe_rx_buffer *rx_buffer; | |
1890 | struct sk_buff *skb; | |
1891 | struct page *page; | |
1892 | ||
1893 | rx_buffer = &rx_ring->rx_buffer_info[rx_ring->next_to_clean]; | |
1894 | page = rx_buffer->page; | |
1895 | prefetchw(page); | |
1896 | ||
1897 | skb = rx_buffer->skb; | |
1898 | ||
1899 | if (likely(!skb)) { | |
1900 | void *page_addr = page_address(page) + | |
1901 | rx_buffer->page_offset; | |
1902 | ||
1903 | /* prefetch first cache line of first page */ | |
1904 | prefetch(page_addr); | |
1905 | #if L1_CACHE_BYTES < 128 | |
1906 | prefetch(page_addr + L1_CACHE_BYTES); | |
1907 | #endif | |
1908 | ||
1909 | /* allocate a skb to store the frags */ | |
1910 | skb = netdev_alloc_skb_ip_align(rx_ring->netdev, | |
1911 | IXGBE_RX_HDR_SIZE); | |
1912 | if (unlikely(!skb)) { | |
1913 | rx_ring->rx_stats.alloc_rx_buff_failed++; | |
1914 | return NULL; | |
1915 | } | |
1916 | ||
1917 | /* | |
1918 | * we will be copying header into skb->data in | |
1919 | * pskb_may_pull so it is in our interest to prefetch | |
1920 | * it now to avoid a possible cache miss | |
1921 | */ | |
1922 | prefetchw(skb->data); | |
1923 | ||
1924 | /* | |
1925 | * Delay unmapping of the first packet. It carries the | |
1926 | * header information, HW may still access the header | |
1927 | * after the writeback. Only unmap it when EOP is | |
1928 | * reached | |
1929 | */ | |
1930 | if (likely(ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_EOP))) | |
1931 | goto dma_sync; | |
1932 | ||
1933 | IXGBE_CB(skb)->dma = rx_buffer->dma; | |
1934 | } else { | |
1935 | if (ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_EOP)) | |
1936 | ixgbe_dma_sync_frag(rx_ring, skb); | |
1937 | ||
1938 | dma_sync: | |
1939 | /* we are reusing so sync this buffer for CPU use */ | |
1940 | dma_sync_single_range_for_cpu(rx_ring->dev, | |
1941 | rx_buffer->dma, | |
1942 | rx_buffer->page_offset, | |
1943 | ixgbe_rx_bufsz(rx_ring), | |
1944 | DMA_FROM_DEVICE); | |
1945 | } | |
1946 | ||
1947 | /* pull page into skb */ | |
1948 | if (ixgbe_add_rx_frag(rx_ring, rx_buffer, rx_desc, skb)) { | |
1949 | /* hand second half of page back to the ring */ | |
1950 | ixgbe_reuse_rx_page(rx_ring, rx_buffer); | |
1951 | } else if (IXGBE_CB(skb)->dma == rx_buffer->dma) { | |
1952 | /* the page has been released from the ring */ | |
1953 | IXGBE_CB(skb)->page_released = true; | |
1954 | } else { | |
1955 | /* we are not reusing the buffer so unmap it */ | |
1956 | dma_unmap_page(rx_ring->dev, rx_buffer->dma, | |
1957 | ixgbe_rx_pg_size(rx_ring), | |
1958 | DMA_FROM_DEVICE); | |
1959 | } | |
1960 | ||
1961 | /* clear contents of buffer_info */ | |
1962 | rx_buffer->skb = NULL; | |
1963 | rx_buffer->dma = 0; | |
1964 | rx_buffer->page = NULL; | |
1965 | ||
1966 | return skb; | |
f800326d AD |
1967 | } |
1968 | ||
1969 | /** | |
1970 | * ixgbe_clean_rx_irq - Clean completed descriptors from Rx ring - bounce buf | |
1971 | * @q_vector: structure containing interrupt and ring information | |
1972 | * @rx_ring: rx descriptor ring to transact packets on | |
1973 | * @budget: Total limit on number of packets to process | |
1974 | * | |
1975 | * This function provides a "bounce buffer" approach to Rx interrupt | |
1976 | * processing. The advantage to this is that on systems that have | |
1977 | * expensive overhead for IOMMU access this provides a means of avoiding | |
1978 | * it by maintaining the mapping of the page to the syste. | |
1979 | * | |
5a85e737 | 1980 | * Returns amount of work completed |
f800326d | 1981 | **/ |
5a85e737 | 1982 | static int ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector, |
e8e9f696 | 1983 | struct ixgbe_ring *rx_ring, |
f4de00ed | 1984 | const int budget) |
9a799d71 | 1985 | { |
d2f4fbe2 | 1986 | unsigned int total_rx_bytes = 0, total_rx_packets = 0; |
3f2d1c0f | 1987 | #ifdef IXGBE_FCOE |
f800326d | 1988 | struct ixgbe_adapter *adapter = q_vector->adapter; |
4ffdf91a MR |
1989 | int ddp_bytes; |
1990 | unsigned int mss = 0; | |
3d8fd385 | 1991 | #endif /* IXGBE_FCOE */ |
f800326d | 1992 | u16 cleaned_count = ixgbe_desc_unused(rx_ring); |
9a799d71 | 1993 | |
fdabfc8a | 1994 | while (likely(total_rx_packets < budget)) { |
f800326d AD |
1995 | union ixgbe_adv_rx_desc *rx_desc; |
1996 | struct sk_buff *skb; | |
f800326d AD |
1997 | |
1998 | /* return some buffers to hardware, one at a time is too slow */ | |
1999 | if (cleaned_count >= IXGBE_RX_BUFFER_WRITE) { | |
2000 | ixgbe_alloc_rx_buffers(rx_ring, cleaned_count); | |
2001 | cleaned_count = 0; | |
2002 | } | |
2003 | ||
18806c9e | 2004 | rx_desc = IXGBE_RX_DESC(rx_ring, rx_ring->next_to_clean); |
f800326d AD |
2005 | |
2006 | if (!ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_DD)) | |
2007 | break; | |
9a799d71 | 2008 | |
f800326d AD |
2009 | /* |
2010 | * This memory barrier is needed to keep us from reading | |
2011 | * any other fields out of the rx_desc until we know the | |
2012 | * RXD_STAT_DD bit is set | |
2013 | */ | |
2014 | rmb(); | |
9a799d71 | 2015 | |
18806c9e AD |
2016 | /* retrieve a buffer from the ring */ |
2017 | skb = ixgbe_fetch_rx_buffer(rx_ring, rx_desc); | |
f800326d | 2018 | |
18806c9e AD |
2019 | /* exit if we failed to retrieve a buffer */ |
2020 | if (!skb) | |
2021 | break; | |
9a799d71 | 2022 | |
9a799d71 | 2023 | cleaned_count++; |
f8212f97 | 2024 | |
f800326d AD |
2025 | /* place incomplete frames back on ring for completion */ |
2026 | if (ixgbe_is_non_eop(rx_ring, rx_desc, skb)) | |
2027 | continue; | |
c267fc16 | 2028 | |
f800326d AD |
2029 | /* verify the packet layout is correct */ |
2030 | if (ixgbe_cleanup_headers(rx_ring, rx_desc, skb)) | |
2031 | continue; | |
9a799d71 | 2032 | |
d2f4fbe2 AV |
2033 | /* probably a little skewed due to removing CRC */ |
2034 | total_rx_bytes += skb->len; | |
d2f4fbe2 | 2035 | |
8a0da21b AD |
2036 | /* populate checksum, timestamp, VLAN, and protocol */ |
2037 | ixgbe_process_skb_fields(rx_ring, rx_desc, skb); | |
2038 | ||
332d4a7d YZ |
2039 | #ifdef IXGBE_FCOE |
2040 | /* if ddp, not passing to ULD unless for FCP_RSP or error */ | |
57efd44c | 2041 | if (ixgbe_rx_is_fcoe(rx_ring, rx_desc)) { |
f56e0cb1 | 2042 | ddp_bytes = ixgbe_fcoe_ddp(adapter, rx_desc, skb); |
4ffdf91a MR |
2043 | /* include DDPed FCoE data */ |
2044 | if (ddp_bytes > 0) { | |
2045 | if (!mss) { | |
2046 | mss = rx_ring->netdev->mtu - | |
2047 | sizeof(struct fcoe_hdr) - | |
2048 | sizeof(struct fc_frame_header) - | |
2049 | sizeof(struct fcoe_crc_eof); | |
2050 | if (mss > 512) | |
2051 | mss &= ~511; | |
2052 | } | |
2053 | total_rx_bytes += ddp_bytes; | |
2054 | total_rx_packets += DIV_ROUND_UP(ddp_bytes, | |
2055 | mss); | |
2056 | } | |
63d635b2 AD |
2057 | if (!ddp_bytes) { |
2058 | dev_kfree_skb_any(skb); | |
f800326d | 2059 | continue; |
63d635b2 | 2060 | } |
3d8fd385 | 2061 | } |
f800326d | 2062 | |
332d4a7d | 2063 | #endif /* IXGBE_FCOE */ |
8b80cda5 | 2064 | skb_mark_napi_id(skb, &q_vector->napi); |
8a0da21b | 2065 | ixgbe_rx_skb(q_vector, skb); |
9a799d71 | 2066 | |
f800326d | 2067 | /* update budget accounting */ |
f4de00ed | 2068 | total_rx_packets++; |
fdabfc8a | 2069 | } |
9a799d71 | 2070 | |
c267fc16 AD |
2071 | u64_stats_update_begin(&rx_ring->syncp); |
2072 | rx_ring->stats.packets += total_rx_packets; | |
2073 | rx_ring->stats.bytes += total_rx_bytes; | |
2074 | u64_stats_update_end(&rx_ring->syncp); | |
bd198058 AD |
2075 | q_vector->rx.total_packets += total_rx_packets; |
2076 | q_vector->rx.total_bytes += total_rx_bytes; | |
4ff7fb12 | 2077 | |
5a85e737 | 2078 | return total_rx_packets; |
9a799d71 AK |
2079 | } |
2080 | ||
e0d1095a | 2081 | #ifdef CONFIG_NET_RX_BUSY_POLL |
5a85e737 ET |
2082 | /* must be called with local_bh_disable()d */ |
2083 | static int ixgbe_low_latency_recv(struct napi_struct *napi) | |
2084 | { | |
2085 | struct ixgbe_q_vector *q_vector = | |
2086 | container_of(napi, struct ixgbe_q_vector, napi); | |
2087 | struct ixgbe_adapter *adapter = q_vector->adapter; | |
2088 | struct ixgbe_ring *ring; | |
2089 | int found = 0; | |
2090 | ||
2091 | if (test_bit(__IXGBE_DOWN, &adapter->state)) | |
2092 | return LL_FLUSH_FAILED; | |
2093 | ||
2094 | if (!ixgbe_qv_lock_poll(q_vector)) | |
2095 | return LL_FLUSH_BUSY; | |
2096 | ||
2097 | ixgbe_for_each_ring(ring, q_vector->rx) { | |
2098 | found = ixgbe_clean_rx_irq(q_vector, ring, 4); | |
b4640030 | 2099 | #ifdef BP_EXTENDED_STATS |
7e15b90f ET |
2100 | if (found) |
2101 | ring->stats.cleaned += found; | |
2102 | else | |
2103 | ring->stats.misses++; | |
2104 | #endif | |
5a85e737 ET |
2105 | if (found) |
2106 | break; | |
2107 | } | |
2108 | ||
2109 | ixgbe_qv_unlock_poll(q_vector); | |
2110 | ||
2111 | return found; | |
2112 | } | |
e0d1095a | 2113 | #endif /* CONFIG_NET_RX_BUSY_POLL */ |
5a85e737 | 2114 | |
9a799d71 AK |
2115 | /** |
2116 | * ixgbe_configure_msix - Configure MSI-X hardware | |
2117 | * @adapter: board private structure | |
2118 | * | |
2119 | * ixgbe_configure_msix sets up the hardware to properly generate MSI-X | |
2120 | * interrupts. | |
2121 | **/ | |
2122 | static void ixgbe_configure_msix(struct ixgbe_adapter *adapter) | |
2123 | { | |
021230d4 | 2124 | struct ixgbe_q_vector *q_vector; |
49c7ffbe | 2125 | int v_idx; |
021230d4 | 2126 | u32 mask; |
9a799d71 | 2127 | |
8e34d1aa AD |
2128 | /* Populate MSIX to EITR Select */ |
2129 | if (adapter->num_vfs > 32) { | |
2130 | u32 eitrsel = (1 << (adapter->num_vfs - 32)) - 1; | |
2131 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, eitrsel); | |
2132 | } | |
2133 | ||
4df10466 JB |
2134 | /* |
2135 | * Populate the IVAR table and set the ITR values to the | |
021230d4 AV |
2136 | * corresponding register. |
2137 | */ | |
49c7ffbe | 2138 | for (v_idx = 0; v_idx < adapter->num_q_vectors; v_idx++) { |
efe3d3c8 | 2139 | struct ixgbe_ring *ring; |
7a921c93 | 2140 | q_vector = adapter->q_vector[v_idx]; |
021230d4 | 2141 | |
a557928e | 2142 | ixgbe_for_each_ring(ring, q_vector->rx) |
efe3d3c8 AD |
2143 | ixgbe_set_ivar(adapter, 0, ring->reg_idx, v_idx); |
2144 | ||
a557928e | 2145 | ixgbe_for_each_ring(ring, q_vector->tx) |
efe3d3c8 AD |
2146 | ixgbe_set_ivar(adapter, 1, ring->reg_idx, v_idx); |
2147 | ||
fe49f04a | 2148 | ixgbe_write_eitr(q_vector); |
9a799d71 AK |
2149 | } |
2150 | ||
bd508178 AD |
2151 | switch (adapter->hw.mac.type) { |
2152 | case ixgbe_mac_82598EB: | |
e8e26350 | 2153 | ixgbe_set_ivar(adapter, -1, IXGBE_IVAR_OTHER_CAUSES_INDEX, |
e8e9f696 | 2154 | v_idx); |
bd508178 AD |
2155 | break; |
2156 | case ixgbe_mac_82599EB: | |
b93a2226 | 2157 | case ixgbe_mac_X540: |
e8e26350 | 2158 | ixgbe_set_ivar(adapter, -1, 1, v_idx); |
bd508178 | 2159 | break; |
bd508178 AD |
2160 | default: |
2161 | break; | |
2162 | } | |
021230d4 AV |
2163 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITR(v_idx), 1950); |
2164 | ||
41fb9248 | 2165 | /* set up to autoclear timer, and the vectors */ |
021230d4 | 2166 | mask = IXGBE_EIMS_ENABLE_MASK; |
d5bf4f67 ET |
2167 | mask &= ~(IXGBE_EIMS_OTHER | |
2168 | IXGBE_EIMS_MAILBOX | | |
2169 | IXGBE_EIMS_LSC); | |
2170 | ||
021230d4 | 2171 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIAC, mask); |
9a799d71 AK |
2172 | } |
2173 | ||
f494e8fa AV |
2174 | enum latency_range { |
2175 | lowest_latency = 0, | |
2176 | low_latency = 1, | |
2177 | bulk_latency = 2, | |
2178 | latency_invalid = 255 | |
2179 | }; | |
2180 | ||
2181 | /** | |
2182 | * ixgbe_update_itr - update the dynamic ITR value based on statistics | |
bd198058 AD |
2183 | * @q_vector: structure containing interrupt and ring information |
2184 | * @ring_container: structure containing ring performance data | |
f494e8fa AV |
2185 | * |
2186 | * Stores a new ITR value based on packets and byte | |
2187 | * counts during the last interrupt. The advantage of per interrupt | |
2188 | * computation is faster updates and more accurate ITR for the current | |
2189 | * traffic pattern. Constants in this function were computed | |
2190 | * based on theoretical maximum wire speed and thresholds were set based | |
2191 | * on testing data as well as attempting to minimize response time | |
2192 | * while increasing bulk throughput. | |
2193 | * this functionality is controlled by the InterruptThrottleRate module | |
2194 | * parameter (see ixgbe_param.c) | |
2195 | **/ | |
bd198058 AD |
2196 | static void ixgbe_update_itr(struct ixgbe_q_vector *q_vector, |
2197 | struct ixgbe_ring_container *ring_container) | |
f494e8fa | 2198 | { |
bd198058 AD |
2199 | int bytes = ring_container->total_bytes; |
2200 | int packets = ring_container->total_packets; | |
2201 | u32 timepassed_us; | |
621bd70e | 2202 | u64 bytes_perint; |
bd198058 | 2203 | u8 itr_setting = ring_container->itr; |
f494e8fa AV |
2204 | |
2205 | if (packets == 0) | |
bd198058 | 2206 | return; |
f494e8fa AV |
2207 | |
2208 | /* simple throttlerate management | |
621bd70e AD |
2209 | * 0-10MB/s lowest (100000 ints/s) |
2210 | * 10-20MB/s low (20000 ints/s) | |
2211 | * 20-1249MB/s bulk (8000 ints/s) | |
f494e8fa AV |
2212 | */ |
2213 | /* what was last interrupt timeslice? */ | |
d5bf4f67 | 2214 | timepassed_us = q_vector->itr >> 2; |
bdbeefe8 DS |
2215 | if (timepassed_us == 0) |
2216 | return; | |
2217 | ||
f494e8fa AV |
2218 | bytes_perint = bytes / timepassed_us; /* bytes/usec */ |
2219 | ||
2220 | switch (itr_setting) { | |
2221 | case lowest_latency: | |
621bd70e | 2222 | if (bytes_perint > 10) |
bd198058 | 2223 | itr_setting = low_latency; |
f494e8fa AV |
2224 | break; |
2225 | case low_latency: | |
621bd70e | 2226 | if (bytes_perint > 20) |
bd198058 | 2227 | itr_setting = bulk_latency; |
621bd70e | 2228 | else if (bytes_perint <= 10) |
bd198058 | 2229 | itr_setting = lowest_latency; |
f494e8fa AV |
2230 | break; |
2231 | case bulk_latency: | |
621bd70e | 2232 | if (bytes_perint <= 20) |
bd198058 | 2233 | itr_setting = low_latency; |
f494e8fa AV |
2234 | break; |
2235 | } | |
2236 | ||
bd198058 AD |
2237 | /* clear work counters since we have the values we need */ |
2238 | ring_container->total_bytes = 0; | |
2239 | ring_container->total_packets = 0; | |
2240 | ||
2241 | /* write updated itr to ring container */ | |
2242 | ring_container->itr = itr_setting; | |
f494e8fa AV |
2243 | } |
2244 | ||
509ee935 JB |
2245 | /** |
2246 | * ixgbe_write_eitr - write EITR register in hardware specific way | |
fe49f04a | 2247 | * @q_vector: structure containing interrupt and ring information |
509ee935 JB |
2248 | * |
2249 | * This function is made to be called by ethtool and by the driver | |
2250 | * when it needs to update EITR registers at runtime. Hardware | |
2251 | * specific quirks/differences are taken care of here. | |
2252 | */ | |
fe49f04a | 2253 | void ixgbe_write_eitr(struct ixgbe_q_vector *q_vector) |
509ee935 | 2254 | { |
fe49f04a | 2255 | struct ixgbe_adapter *adapter = q_vector->adapter; |
509ee935 | 2256 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a | 2257 | int v_idx = q_vector->v_idx; |
5d967eb7 | 2258 | u32 itr_reg = q_vector->itr & IXGBE_MAX_EITR; |
fe49f04a | 2259 | |
bd508178 AD |
2260 | switch (adapter->hw.mac.type) { |
2261 | case ixgbe_mac_82598EB: | |
509ee935 JB |
2262 | /* must write high and low 16 bits to reset counter */ |
2263 | itr_reg |= (itr_reg << 16); | |
bd508178 AD |
2264 | break; |
2265 | case ixgbe_mac_82599EB: | |
b93a2226 | 2266 | case ixgbe_mac_X540: |
509ee935 JB |
2267 | /* |
2268 | * set the WDIS bit to not clear the timer bits and cause an | |
2269 | * immediate assertion of the interrupt | |
2270 | */ | |
2271 | itr_reg |= IXGBE_EITR_CNT_WDIS; | |
bd508178 AD |
2272 | break; |
2273 | default: | |
2274 | break; | |
509ee935 JB |
2275 | } |
2276 | IXGBE_WRITE_REG(hw, IXGBE_EITR(v_idx), itr_reg); | |
2277 | } | |
2278 | ||
bd198058 | 2279 | static void ixgbe_set_itr(struct ixgbe_q_vector *q_vector) |
f494e8fa | 2280 | { |
d5bf4f67 | 2281 | u32 new_itr = q_vector->itr; |
bd198058 | 2282 | u8 current_itr; |
f494e8fa | 2283 | |
bd198058 AD |
2284 | ixgbe_update_itr(q_vector, &q_vector->tx); |
2285 | ixgbe_update_itr(q_vector, &q_vector->rx); | |
f494e8fa | 2286 | |
08c8833b | 2287 | current_itr = max(q_vector->rx.itr, q_vector->tx.itr); |
f494e8fa AV |
2288 | |
2289 | switch (current_itr) { | |
2290 | /* counts and packets in update_itr are dependent on these numbers */ | |
2291 | case lowest_latency: | |
d5bf4f67 | 2292 | new_itr = IXGBE_100K_ITR; |
f494e8fa AV |
2293 | break; |
2294 | case low_latency: | |
d5bf4f67 | 2295 | new_itr = IXGBE_20K_ITR; |
f494e8fa AV |
2296 | break; |
2297 | case bulk_latency: | |
d5bf4f67 | 2298 | new_itr = IXGBE_8K_ITR; |
f494e8fa | 2299 | break; |
bd198058 AD |
2300 | default: |
2301 | break; | |
f494e8fa AV |
2302 | } |
2303 | ||
d5bf4f67 | 2304 | if (new_itr != q_vector->itr) { |
fe49f04a | 2305 | /* do an exponential smoothing */ |
d5bf4f67 ET |
2306 | new_itr = (10 * new_itr * q_vector->itr) / |
2307 | ((9 * new_itr) + q_vector->itr); | |
509ee935 | 2308 | |
bd198058 | 2309 | /* save the algorithm value here */ |
5d967eb7 | 2310 | q_vector->itr = new_itr; |
fe49f04a AD |
2311 | |
2312 | ixgbe_write_eitr(q_vector); | |
f494e8fa | 2313 | } |
f494e8fa AV |
2314 | } |
2315 | ||
119fc60a | 2316 | /** |
de88eeeb | 2317 | * ixgbe_check_overtemp_subtask - check for over temperature |
f0f9778d | 2318 | * @adapter: pointer to adapter |
119fc60a | 2319 | **/ |
f0f9778d | 2320 | static void ixgbe_check_overtemp_subtask(struct ixgbe_adapter *adapter) |
119fc60a | 2321 | { |
119fc60a MC |
2322 | struct ixgbe_hw *hw = &adapter->hw; |
2323 | u32 eicr = adapter->interrupt_event; | |
2324 | ||
f0f9778d | 2325 | if (test_bit(__IXGBE_DOWN, &adapter->state)) |
7ca647bd JP |
2326 | return; |
2327 | ||
f0f9778d AD |
2328 | if (!(adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) && |
2329 | !(adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_EVENT)) | |
2330 | return; | |
2331 | ||
2332 | adapter->flags2 &= ~IXGBE_FLAG2_TEMP_SENSOR_EVENT; | |
2333 | ||
7ca647bd | 2334 | switch (hw->device_id) { |
f0f9778d AD |
2335 | case IXGBE_DEV_ID_82599_T3_LOM: |
2336 | /* | |
2337 | * Since the warning interrupt is for both ports | |
2338 | * we don't have to check if: | |
2339 | * - This interrupt wasn't for our port. | |
2340 | * - We may have missed the interrupt so always have to | |
2341 | * check if we got a LSC | |
2342 | */ | |
2343 | if (!(eicr & IXGBE_EICR_GPI_SDP0) && | |
2344 | !(eicr & IXGBE_EICR_LSC)) | |
2345 | return; | |
2346 | ||
2347 | if (!(eicr & IXGBE_EICR_LSC) && hw->mac.ops.check_link) { | |
3d292265 | 2348 | u32 speed; |
f0f9778d | 2349 | bool link_up = false; |
7ca647bd | 2350 | |
3d292265 | 2351 | hw->mac.ops.check_link(hw, &speed, &link_up, false); |
7ca647bd | 2352 | |
f0f9778d AD |
2353 | if (link_up) |
2354 | return; | |
2355 | } | |
2356 | ||
2357 | /* Check if this is not due to overtemp */ | |
2358 | if (hw->phy.ops.check_overtemp(hw) != IXGBE_ERR_OVERTEMP) | |
2359 | return; | |
2360 | ||
2361 | break; | |
7ca647bd JP |
2362 | default: |
2363 | if (!(eicr & IXGBE_EICR_GPI_SDP0)) | |
119fc60a | 2364 | return; |
7ca647bd | 2365 | break; |
119fc60a | 2366 | } |
7ca647bd JP |
2367 | e_crit(drv, |
2368 | "Network adapter has been stopped because it has over heated. " | |
2369 | "Restart the computer. If the problem persists, " | |
2370 | "power off the system and replace the adapter\n"); | |
f0f9778d AD |
2371 | |
2372 | adapter->interrupt_event = 0; | |
119fc60a MC |
2373 | } |
2374 | ||
0befdb3e JB |
2375 | static void ixgbe_check_fan_failure(struct ixgbe_adapter *adapter, u32 eicr) |
2376 | { | |
2377 | struct ixgbe_hw *hw = &adapter->hw; | |
2378 | ||
2379 | if ((adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) && | |
2380 | (eicr & IXGBE_EICR_GPI_SDP1)) { | |
396e799c | 2381 | e_crit(probe, "Fan has stopped, replace the adapter\n"); |
0befdb3e JB |
2382 | /* write to clear the interrupt */ |
2383 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP1); | |
2384 | } | |
2385 | } | |
cf8280ee | 2386 | |
4f51bf70 JK |
2387 | static void ixgbe_check_overtemp_event(struct ixgbe_adapter *adapter, u32 eicr) |
2388 | { | |
2389 | if (!(adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE)) | |
2390 | return; | |
2391 | ||
2392 | switch (adapter->hw.mac.type) { | |
2393 | case ixgbe_mac_82599EB: | |
2394 | /* | |
2395 | * Need to check link state so complete overtemp check | |
2396 | * on service task | |
2397 | */ | |
2398 | if (((eicr & IXGBE_EICR_GPI_SDP0) || (eicr & IXGBE_EICR_LSC)) && | |
2399 | (!test_bit(__IXGBE_DOWN, &adapter->state))) { | |
2400 | adapter->interrupt_event = eicr; | |
2401 | adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_EVENT; | |
2402 | ixgbe_service_event_schedule(adapter); | |
2403 | return; | |
2404 | } | |
2405 | return; | |
2406 | case ixgbe_mac_X540: | |
2407 | if (!(eicr & IXGBE_EICR_TS)) | |
2408 | return; | |
2409 | break; | |
2410 | default: | |
2411 | return; | |
2412 | } | |
2413 | ||
2414 | e_crit(drv, | |
2415 | "Network adapter has been stopped because it has over heated. " | |
2416 | "Restart the computer. If the problem persists, " | |
2417 | "power off the system and replace the adapter\n"); | |
2418 | } | |
2419 | ||
e8e26350 PW |
2420 | static void ixgbe_check_sfp_event(struct ixgbe_adapter *adapter, u32 eicr) |
2421 | { | |
2422 | struct ixgbe_hw *hw = &adapter->hw; | |
2423 | ||
73c4b7cd AD |
2424 | if (eicr & IXGBE_EICR_GPI_SDP2) { |
2425 | /* Clear the interrupt */ | |
2426 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP2); | |
7086400d AD |
2427 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { |
2428 | adapter->flags2 |= IXGBE_FLAG2_SFP_NEEDS_RESET; | |
2429 | ixgbe_service_event_schedule(adapter); | |
2430 | } | |
73c4b7cd AD |
2431 | } |
2432 | ||
e8e26350 PW |
2433 | if (eicr & IXGBE_EICR_GPI_SDP1) { |
2434 | /* Clear the interrupt */ | |
2435 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP1); | |
7086400d AD |
2436 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { |
2437 | adapter->flags |= IXGBE_FLAG_NEED_LINK_CONFIG; | |
2438 | ixgbe_service_event_schedule(adapter); | |
2439 | } | |
e8e26350 PW |
2440 | } |
2441 | } | |
2442 | ||
cf8280ee JB |
2443 | static void ixgbe_check_lsc(struct ixgbe_adapter *adapter) |
2444 | { | |
2445 | struct ixgbe_hw *hw = &adapter->hw; | |
2446 | ||
2447 | adapter->lsc_int++; | |
2448 | adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; | |
2449 | adapter->link_check_timeout = jiffies; | |
2450 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { | |
2451 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_EIMC_LSC); | |
8a0717f3 | 2452 | IXGBE_WRITE_FLUSH(hw); |
93c52dd0 | 2453 | ixgbe_service_event_schedule(adapter); |
cf8280ee JB |
2454 | } |
2455 | } | |
2456 | ||
fe49f04a AD |
2457 | static inline void ixgbe_irq_enable_queues(struct ixgbe_adapter *adapter, |
2458 | u64 qmask) | |
2459 | { | |
2460 | u32 mask; | |
bd508178 | 2461 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a | 2462 | |
bd508178 AD |
2463 | switch (hw->mac.type) { |
2464 | case ixgbe_mac_82598EB: | |
fe49f04a | 2465 | mask = (IXGBE_EIMS_RTX_QUEUE & qmask); |
bd508178 AD |
2466 | IXGBE_WRITE_REG(hw, IXGBE_EIMS, mask); |
2467 | break; | |
2468 | case ixgbe_mac_82599EB: | |
b93a2226 | 2469 | case ixgbe_mac_X540: |
fe49f04a | 2470 | mask = (qmask & 0xFFFFFFFF); |
bd508178 AD |
2471 | if (mask) |
2472 | IXGBE_WRITE_REG(hw, IXGBE_EIMS_EX(0), mask); | |
fe49f04a | 2473 | mask = (qmask >> 32); |
bd508178 AD |
2474 | if (mask) |
2475 | IXGBE_WRITE_REG(hw, IXGBE_EIMS_EX(1), mask); | |
2476 | break; | |
2477 | default: | |
2478 | break; | |
fe49f04a AD |
2479 | } |
2480 | /* skip the flush */ | |
2481 | } | |
2482 | ||
2483 | static inline void ixgbe_irq_disable_queues(struct ixgbe_adapter *adapter, | |
e8e9f696 | 2484 | u64 qmask) |
fe49f04a AD |
2485 | { |
2486 | u32 mask; | |
bd508178 | 2487 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a | 2488 | |
bd508178 AD |
2489 | switch (hw->mac.type) { |
2490 | case ixgbe_mac_82598EB: | |
fe49f04a | 2491 | mask = (IXGBE_EIMS_RTX_QUEUE & qmask); |
bd508178 AD |
2492 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, mask); |
2493 | break; | |
2494 | case ixgbe_mac_82599EB: | |
b93a2226 | 2495 | case ixgbe_mac_X540: |
fe49f04a | 2496 | mask = (qmask & 0xFFFFFFFF); |
bd508178 AD |
2497 | if (mask) |
2498 | IXGBE_WRITE_REG(hw, IXGBE_EIMC_EX(0), mask); | |
fe49f04a | 2499 | mask = (qmask >> 32); |
bd508178 AD |
2500 | if (mask) |
2501 | IXGBE_WRITE_REG(hw, IXGBE_EIMC_EX(1), mask); | |
2502 | break; | |
2503 | default: | |
2504 | break; | |
fe49f04a AD |
2505 | } |
2506 | /* skip the flush */ | |
2507 | } | |
2508 | ||
021230d4 | 2509 | /** |
2c4af694 AD |
2510 | * ixgbe_irq_enable - Enable default interrupt generation settings |
2511 | * @adapter: board private structure | |
021230d4 | 2512 | **/ |
2c4af694 AD |
2513 | static inline void ixgbe_irq_enable(struct ixgbe_adapter *adapter, bool queues, |
2514 | bool flush) | |
9a799d71 | 2515 | { |
2c4af694 | 2516 | u32 mask = (IXGBE_EIMS_ENABLE_MASK & ~IXGBE_EIMS_RTX_QUEUE); |
9a799d71 | 2517 | |
2c4af694 AD |
2518 | /* don't reenable LSC while waiting for link */ |
2519 | if (adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE) | |
2520 | mask &= ~IXGBE_EIMS_LSC; | |
9a799d71 | 2521 | |
2c4af694 | 2522 | if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) |
4f51bf70 JK |
2523 | switch (adapter->hw.mac.type) { |
2524 | case ixgbe_mac_82599EB: | |
2525 | mask |= IXGBE_EIMS_GPI_SDP0; | |
2526 | break; | |
2527 | case ixgbe_mac_X540: | |
2528 | mask |= IXGBE_EIMS_TS; | |
2529 | break; | |
2530 | default: | |
2531 | break; | |
2532 | } | |
2c4af694 AD |
2533 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) |
2534 | mask |= IXGBE_EIMS_GPI_SDP1; | |
2535 | switch (adapter->hw.mac.type) { | |
2536 | case ixgbe_mac_82599EB: | |
2c4af694 AD |
2537 | mask |= IXGBE_EIMS_GPI_SDP1; |
2538 | mask |= IXGBE_EIMS_GPI_SDP2; | |
858bc081 DS |
2539 | case ixgbe_mac_X540: |
2540 | mask |= IXGBE_EIMS_ECC; | |
2c4af694 AD |
2541 | mask |= IXGBE_EIMS_MAILBOX; |
2542 | break; | |
2543 | default: | |
2544 | break; | |
9a799d71 | 2545 | } |
db0677fa | 2546 | |
db0677fa JK |
2547 | if (adapter->hw.mac.type == ixgbe_mac_X540) |
2548 | mask |= IXGBE_EIMS_TIMESYNC; | |
db0677fa | 2549 | |
2c4af694 AD |
2550 | if ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) && |
2551 | !(adapter->flags2 & IXGBE_FLAG2_FDIR_REQUIRES_REINIT)) | |
2552 | mask |= IXGBE_EIMS_FLOW_DIR; | |
9a799d71 | 2553 | |
2c4af694 AD |
2554 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, mask); |
2555 | if (queues) | |
2556 | ixgbe_irq_enable_queues(adapter, ~0); | |
2557 | if (flush) | |
2558 | IXGBE_WRITE_FLUSH(&adapter->hw); | |
9a799d71 AK |
2559 | } |
2560 | ||
2c4af694 | 2561 | static irqreturn_t ixgbe_msix_other(int irq, void *data) |
f0848276 | 2562 | { |
a65151ba | 2563 | struct ixgbe_adapter *adapter = data; |
9a799d71 | 2564 | struct ixgbe_hw *hw = &adapter->hw; |
54037505 | 2565 | u32 eicr; |
91281fd3 | 2566 | |
54037505 DS |
2567 | /* |
2568 | * Workaround for Silicon errata. Use clear-by-write instead | |
2569 | * of clear-by-read. Reading with EICS will return the | |
2570 | * interrupt causes without clearing, which later be done | |
2571 | * with the write to EICR. | |
2572 | */ | |
2573 | eicr = IXGBE_READ_REG(hw, IXGBE_EICS); | |
d87d8307 JK |
2574 | |
2575 | /* The lower 16bits of the EICR register are for the queue interrupts | |
2576 | * which should be masked here in order to not accidently clear them if | |
2577 | * the bits are high when ixgbe_msix_other is called. There is a race | |
2578 | * condition otherwise which results in possible performance loss | |
2579 | * especially if the ixgbe_msix_other interrupt is triggering | |
2580 | * consistently (as it would when PPS is turned on for the X540 device) | |
2581 | */ | |
2582 | eicr &= 0xFFFF0000; | |
2583 | ||
54037505 | 2584 | IXGBE_WRITE_REG(hw, IXGBE_EICR, eicr); |
33cf09c9 | 2585 | |
cf8280ee JB |
2586 | if (eicr & IXGBE_EICR_LSC) |
2587 | ixgbe_check_lsc(adapter); | |
f0848276 | 2588 | |
1cdd1ec8 GR |
2589 | if (eicr & IXGBE_EICR_MAILBOX) |
2590 | ixgbe_msg_task(adapter); | |
efe3d3c8 | 2591 | |
bd508178 AD |
2592 | switch (hw->mac.type) { |
2593 | case ixgbe_mac_82599EB: | |
b93a2226 | 2594 | case ixgbe_mac_X540: |
d773ce2d DS |
2595 | if (eicr & IXGBE_EICR_ECC) { |
2596 | e_info(link, "Received ECC Err, initiating reset\n"); | |
2597 | adapter->flags2 |= IXGBE_FLAG2_RESET_REQUESTED; | |
2598 | ixgbe_service_event_schedule(adapter); | |
2599 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_ECC); | |
2600 | } | |
c4cf55e5 PWJ |
2601 | /* Handle Flow Director Full threshold interrupt */ |
2602 | if (eicr & IXGBE_EICR_FLOW_DIR) { | |
d034acf1 | 2603 | int reinit_count = 0; |
c4cf55e5 | 2604 | int i; |
c4cf55e5 | 2605 | for (i = 0; i < adapter->num_tx_queues; i++) { |
d034acf1 | 2606 | struct ixgbe_ring *ring = adapter->tx_ring[i]; |
7d637bcc | 2607 | if (test_and_clear_bit(__IXGBE_TX_FDIR_INIT_DONE, |
d034acf1 AD |
2608 | &ring->state)) |
2609 | reinit_count++; | |
2610 | } | |
2611 | if (reinit_count) { | |
2612 | /* no more flow director interrupts until after init */ | |
2613 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_EIMC_FLOW_DIR); | |
d034acf1 AD |
2614 | adapter->flags2 |= IXGBE_FLAG2_FDIR_REQUIRES_REINIT; |
2615 | ixgbe_service_event_schedule(adapter); | |
c4cf55e5 PWJ |
2616 | } |
2617 | } | |
f0f9778d | 2618 | ixgbe_check_sfp_event(adapter, eicr); |
4f51bf70 | 2619 | ixgbe_check_overtemp_event(adapter, eicr); |
bd508178 AD |
2620 | break; |
2621 | default: | |
2622 | break; | |
c4cf55e5 | 2623 | } |
f0848276 | 2624 | |
bd508178 | 2625 | ixgbe_check_fan_failure(adapter, eicr); |
db0677fa | 2626 | |
db0677fa JK |
2627 | if (unlikely(eicr & IXGBE_EICR_TIMESYNC)) |
2628 | ixgbe_ptp_check_pps_event(adapter, eicr); | |
efe3d3c8 | 2629 | |
7086400d | 2630 | /* re-enable the original interrupt state, no lsc, no queues */ |
d4f80882 | 2631 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
2c4af694 | 2632 | ixgbe_irq_enable(adapter, false, false); |
f0848276 | 2633 | |
9a799d71 | 2634 | return IRQ_HANDLED; |
f0848276 | 2635 | } |
91281fd3 | 2636 | |
4ff7fb12 | 2637 | static irqreturn_t ixgbe_msix_clean_rings(int irq, void *data) |
91281fd3 | 2638 | { |
021230d4 | 2639 | struct ixgbe_q_vector *q_vector = data; |
91281fd3 | 2640 | |
9b471446 | 2641 | /* EIAM disabled interrupts (on this vector) for us */ |
91281fd3 | 2642 | |
4ff7fb12 AD |
2643 | if (q_vector->rx.ring || q_vector->tx.ring) |
2644 | napi_schedule(&q_vector->napi); | |
91281fd3 | 2645 | |
9a799d71 | 2646 | return IRQ_HANDLED; |
91281fd3 AD |
2647 | } |
2648 | ||
eb01b975 AD |
2649 | /** |
2650 | * ixgbe_poll - NAPI Rx polling callback | |
2651 | * @napi: structure for representing this polling device | |
2652 | * @budget: how many packets driver is allowed to clean | |
2653 | * | |
2654 | * This function is used for legacy and MSI, NAPI mode | |
2655 | **/ | |
8af3c33f | 2656 | int ixgbe_poll(struct napi_struct *napi, int budget) |
eb01b975 AD |
2657 | { |
2658 | struct ixgbe_q_vector *q_vector = | |
2659 | container_of(napi, struct ixgbe_q_vector, napi); | |
2660 | struct ixgbe_adapter *adapter = q_vector->adapter; | |
2661 | struct ixgbe_ring *ring; | |
2662 | int per_ring_budget; | |
2663 | bool clean_complete = true; | |
2664 | ||
2665 | #ifdef CONFIG_IXGBE_DCA | |
2666 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) | |
2667 | ixgbe_update_dca(q_vector); | |
2668 | #endif | |
2669 | ||
2670 | ixgbe_for_each_ring(ring, q_vector->tx) | |
2671 | clean_complete &= !!ixgbe_clean_tx_irq(q_vector, ring); | |
2672 | ||
5a85e737 ET |
2673 | if (!ixgbe_qv_lock_napi(q_vector)) |
2674 | return budget; | |
2675 | ||
eb01b975 AD |
2676 | /* attempt to distribute budget to each queue fairly, but don't allow |
2677 | * the budget to go below 1 because we'll exit polling */ | |
2678 | if (q_vector->rx.count > 1) | |
2679 | per_ring_budget = max(budget/q_vector->rx.count, 1); | |
2680 | else | |
2681 | per_ring_budget = budget; | |
2682 | ||
2683 | ixgbe_for_each_ring(ring, q_vector->rx) | |
5a85e737 ET |
2684 | clean_complete &= (ixgbe_clean_rx_irq(q_vector, ring, |
2685 | per_ring_budget) < per_ring_budget); | |
eb01b975 | 2686 | |
5a85e737 | 2687 | ixgbe_qv_unlock_napi(q_vector); |
eb01b975 AD |
2688 | /* If all work not completed, return budget and keep polling */ |
2689 | if (!clean_complete) | |
2690 | return budget; | |
2691 | ||
2692 | /* all work done, exit the polling mode */ | |
2693 | napi_complete(napi); | |
2694 | if (adapter->rx_itr_setting & 1) | |
2695 | ixgbe_set_itr(q_vector); | |
2696 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) | |
2697 | ixgbe_irq_enable_queues(adapter, ((u64)1 << q_vector->v_idx)); | |
2698 | ||
2699 | return 0; | |
2700 | } | |
2701 | ||
021230d4 AV |
2702 | /** |
2703 | * ixgbe_request_msix_irqs - Initialize MSI-X interrupts | |
2704 | * @adapter: board private structure | |
2705 | * | |
2706 | * ixgbe_request_msix_irqs allocates MSI-X vectors and requests | |
2707 | * interrupts from the kernel. | |
2708 | **/ | |
2709 | static int ixgbe_request_msix_irqs(struct ixgbe_adapter *adapter) | |
2710 | { | |
2711 | struct net_device *netdev = adapter->netdev; | |
207867f5 | 2712 | int vector, err; |
e8e9f696 | 2713 | int ri = 0, ti = 0; |
021230d4 | 2714 | |
49c7ffbe | 2715 | for (vector = 0; vector < adapter->num_q_vectors; vector++) { |
d0759ebb | 2716 | struct ixgbe_q_vector *q_vector = adapter->q_vector[vector]; |
207867f5 | 2717 | struct msix_entry *entry = &adapter->msix_entries[vector]; |
cb13fc20 | 2718 | |
4ff7fb12 | 2719 | if (q_vector->tx.ring && q_vector->rx.ring) { |
9fe93afd | 2720 | snprintf(q_vector->name, sizeof(q_vector->name) - 1, |
4ff7fb12 AD |
2721 | "%s-%s-%d", netdev->name, "TxRx", ri++); |
2722 | ti++; | |
2723 | } else if (q_vector->rx.ring) { | |
9fe93afd | 2724 | snprintf(q_vector->name, sizeof(q_vector->name) - 1, |
4ff7fb12 AD |
2725 | "%s-%s-%d", netdev->name, "rx", ri++); |
2726 | } else if (q_vector->tx.ring) { | |
9fe93afd | 2727 | snprintf(q_vector->name, sizeof(q_vector->name) - 1, |
4ff7fb12 | 2728 | "%s-%s-%d", netdev->name, "tx", ti++); |
d0759ebb AD |
2729 | } else { |
2730 | /* skip this unused q_vector */ | |
2731 | continue; | |
32aa77a4 | 2732 | } |
207867f5 AD |
2733 | err = request_irq(entry->vector, &ixgbe_msix_clean_rings, 0, |
2734 | q_vector->name, q_vector); | |
9a799d71 | 2735 | if (err) { |
396e799c | 2736 | e_err(probe, "request_irq failed for MSIX interrupt " |
849c4542 | 2737 | "Error: %d\n", err); |
021230d4 | 2738 | goto free_queue_irqs; |
9a799d71 | 2739 | } |
207867f5 AD |
2740 | /* If Flow Director is enabled, set interrupt affinity */ |
2741 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { | |
2742 | /* assign the mask for this irq */ | |
2743 | irq_set_affinity_hint(entry->vector, | |
de88eeeb | 2744 | &q_vector->affinity_mask); |
207867f5 | 2745 | } |
9a799d71 AK |
2746 | } |
2747 | ||
021230d4 | 2748 | err = request_irq(adapter->msix_entries[vector].vector, |
2c4af694 | 2749 | ixgbe_msix_other, 0, netdev->name, adapter); |
9a799d71 | 2750 | if (err) { |
de88eeeb | 2751 | e_err(probe, "request_irq for msix_other failed: %d\n", err); |
021230d4 | 2752 | goto free_queue_irqs; |
9a799d71 AK |
2753 | } |
2754 | ||
9a799d71 AK |
2755 | return 0; |
2756 | ||
021230d4 | 2757 | free_queue_irqs: |
207867f5 AD |
2758 | while (vector) { |
2759 | vector--; | |
2760 | irq_set_affinity_hint(adapter->msix_entries[vector].vector, | |
2761 | NULL); | |
2762 | free_irq(adapter->msix_entries[vector].vector, | |
2763 | adapter->q_vector[vector]); | |
2764 | } | |
021230d4 AV |
2765 | adapter->flags &= ~IXGBE_FLAG_MSIX_ENABLED; |
2766 | pci_disable_msix(adapter->pdev); | |
9a799d71 AK |
2767 | kfree(adapter->msix_entries); |
2768 | adapter->msix_entries = NULL; | |
9a799d71 AK |
2769 | return err; |
2770 | } | |
2771 | ||
2772 | /** | |
021230d4 | 2773 | * ixgbe_intr - legacy mode Interrupt Handler |
9a799d71 AK |
2774 | * @irq: interrupt number |
2775 | * @data: pointer to a network interface device structure | |
9a799d71 AK |
2776 | **/ |
2777 | static irqreturn_t ixgbe_intr(int irq, void *data) | |
2778 | { | |
a65151ba | 2779 | struct ixgbe_adapter *adapter = data; |
9a799d71 | 2780 | struct ixgbe_hw *hw = &adapter->hw; |
7a921c93 | 2781 | struct ixgbe_q_vector *q_vector = adapter->q_vector[0]; |
9a799d71 AK |
2782 | u32 eicr; |
2783 | ||
54037505 | 2784 | /* |
24ddd967 | 2785 | * Workaround for silicon errata #26 on 82598. Mask the interrupt |
54037505 DS |
2786 | * before the read of EICR. |
2787 | */ | |
2788 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_IRQ_CLEAR_MASK); | |
2789 | ||
021230d4 | 2790 | /* for NAPI, using EIAM to auto-mask tx/rx interrupt bits on read |
52f33af8 | 2791 | * therefore no explicit interrupt disable is necessary */ |
021230d4 | 2792 | eicr = IXGBE_READ_REG(hw, IXGBE_EICR); |
f47cf66e | 2793 | if (!eicr) { |
6af3b9eb ET |
2794 | /* |
2795 | * shared interrupt alert! | |
f47cf66e | 2796 | * make sure interrupts are enabled because the read will |
6af3b9eb ET |
2797 | * have disabled interrupts due to EIAM |
2798 | * finish the workaround of silicon errata on 82598. Unmask | |
2799 | * the interrupt that we masked before the EICR read. | |
2800 | */ | |
2801 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) | |
2802 | ixgbe_irq_enable(adapter, true, true); | |
9a799d71 | 2803 | return IRQ_NONE; /* Not our interrupt */ |
f47cf66e | 2804 | } |
9a799d71 | 2805 | |
cf8280ee JB |
2806 | if (eicr & IXGBE_EICR_LSC) |
2807 | ixgbe_check_lsc(adapter); | |
021230d4 | 2808 | |
bd508178 AD |
2809 | switch (hw->mac.type) { |
2810 | case ixgbe_mac_82599EB: | |
e8e26350 | 2811 | ixgbe_check_sfp_event(adapter, eicr); |
0ccb974d DS |
2812 | /* Fall through */ |
2813 | case ixgbe_mac_X540: | |
d773ce2d DS |
2814 | if (eicr & IXGBE_EICR_ECC) { |
2815 | e_info(link, "Received ECC Err, initiating reset\n"); | |
2816 | adapter->flags2 |= IXGBE_FLAG2_RESET_REQUESTED; | |
2817 | ixgbe_service_event_schedule(adapter); | |
2818 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_ECC); | |
2819 | } | |
4f51bf70 | 2820 | ixgbe_check_overtemp_event(adapter, eicr); |
bd508178 AD |
2821 | break; |
2822 | default: | |
2823 | break; | |
2824 | } | |
e8e26350 | 2825 | |
0befdb3e | 2826 | ixgbe_check_fan_failure(adapter, eicr); |
db0677fa JK |
2827 | if (unlikely(eicr & IXGBE_EICR_TIMESYNC)) |
2828 | ixgbe_ptp_check_pps_event(adapter, eicr); | |
0befdb3e | 2829 | |
b9f6ed2b AD |
2830 | /* would disable interrupts here but EIAM disabled it */ |
2831 | napi_schedule(&q_vector->napi); | |
9a799d71 | 2832 | |
6af3b9eb ET |
2833 | /* |
2834 | * re-enable link(maybe) and non-queue interrupts, no flush. | |
2835 | * ixgbe_poll will re-enable the queue interrupts | |
2836 | */ | |
6af3b9eb ET |
2837 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
2838 | ixgbe_irq_enable(adapter, false, false); | |
2839 | ||
9a799d71 AK |
2840 | return IRQ_HANDLED; |
2841 | } | |
2842 | ||
2843 | /** | |
2844 | * ixgbe_request_irq - initialize interrupts | |
2845 | * @adapter: board private structure | |
2846 | * | |
2847 | * Attempts to configure interrupts using the best available | |
2848 | * capabilities of the hardware and kernel. | |
2849 | **/ | |
021230d4 | 2850 | static int ixgbe_request_irq(struct ixgbe_adapter *adapter) |
9a799d71 AK |
2851 | { |
2852 | struct net_device *netdev = adapter->netdev; | |
021230d4 | 2853 | int err; |
9a799d71 | 2854 | |
4cc6df29 | 2855 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) |
021230d4 | 2856 | err = ixgbe_request_msix_irqs(adapter); |
4cc6df29 | 2857 | else if (adapter->flags & IXGBE_FLAG_MSI_ENABLED) |
a0607fd3 | 2858 | err = request_irq(adapter->pdev->irq, ixgbe_intr, 0, |
a65151ba | 2859 | netdev->name, adapter); |
4cc6df29 | 2860 | else |
a0607fd3 | 2861 | err = request_irq(adapter->pdev->irq, ixgbe_intr, IRQF_SHARED, |
a65151ba | 2862 | netdev->name, adapter); |
9a799d71 | 2863 | |
de88eeeb | 2864 | if (err) |
396e799c | 2865 | e_err(probe, "request_irq failed, Error %d\n", err); |
9a799d71 | 2866 | |
9a799d71 AK |
2867 | return err; |
2868 | } | |
2869 | ||
2870 | static void ixgbe_free_irq(struct ixgbe_adapter *adapter) | |
2871 | { | |
49c7ffbe | 2872 | int vector; |
9a799d71 | 2873 | |
49c7ffbe AD |
2874 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) { |
2875 | free_irq(adapter->pdev->irq, adapter); | |
2876 | return; | |
2877 | } | |
4cc6df29 | 2878 | |
49c7ffbe AD |
2879 | for (vector = 0; vector < adapter->num_q_vectors; vector++) { |
2880 | struct ixgbe_q_vector *q_vector = adapter->q_vector[vector]; | |
2881 | struct msix_entry *entry = &adapter->msix_entries[vector]; | |
894ff7cf | 2882 | |
49c7ffbe AD |
2883 | /* free only the irqs that were actually requested */ |
2884 | if (!q_vector->rx.ring && !q_vector->tx.ring) | |
2885 | continue; | |
207867f5 | 2886 | |
49c7ffbe AD |
2887 | /* clear the affinity_mask in the IRQ descriptor */ |
2888 | irq_set_affinity_hint(entry->vector, NULL); | |
2889 | ||
2890 | free_irq(entry->vector, q_vector); | |
9a799d71 | 2891 | } |
49c7ffbe AD |
2892 | |
2893 | free_irq(adapter->msix_entries[vector++].vector, adapter); | |
9a799d71 AK |
2894 | } |
2895 | ||
22d5a71b JB |
2896 | /** |
2897 | * ixgbe_irq_disable - Mask off interrupt generation on the NIC | |
2898 | * @adapter: board private structure | |
2899 | **/ | |
2900 | static inline void ixgbe_irq_disable(struct ixgbe_adapter *adapter) | |
2901 | { | |
bd508178 AD |
2902 | switch (adapter->hw.mac.type) { |
2903 | case ixgbe_mac_82598EB: | |
835462fc | 2904 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, ~0); |
bd508178 AD |
2905 | break; |
2906 | case ixgbe_mac_82599EB: | |
b93a2226 | 2907 | case ixgbe_mac_X540: |
835462fc NS |
2908 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, 0xFFFF0000); |
2909 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(0), ~0); | |
22d5a71b | 2910 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(1), ~0); |
bd508178 AD |
2911 | break; |
2912 | default: | |
2913 | break; | |
22d5a71b JB |
2914 | } |
2915 | IXGBE_WRITE_FLUSH(&adapter->hw); | |
2916 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { | |
49c7ffbe AD |
2917 | int vector; |
2918 | ||
2919 | for (vector = 0; vector < adapter->num_q_vectors; vector++) | |
2920 | synchronize_irq(adapter->msix_entries[vector].vector); | |
2921 | ||
2922 | synchronize_irq(adapter->msix_entries[vector++].vector); | |
22d5a71b JB |
2923 | } else { |
2924 | synchronize_irq(adapter->pdev->irq); | |
2925 | } | |
2926 | } | |
2927 | ||
9a799d71 AK |
2928 | /** |
2929 | * ixgbe_configure_msi_and_legacy - Initialize PIN (INTA...) and MSI interrupts | |
2930 | * | |
2931 | **/ | |
2932 | static void ixgbe_configure_msi_and_legacy(struct ixgbe_adapter *adapter) | |
2933 | { | |
d5bf4f67 | 2934 | struct ixgbe_q_vector *q_vector = adapter->q_vector[0]; |
9a799d71 | 2935 | |
d5bf4f67 | 2936 | ixgbe_write_eitr(q_vector); |
9a799d71 | 2937 | |
e8e26350 PW |
2938 | ixgbe_set_ivar(adapter, 0, 0, 0); |
2939 | ixgbe_set_ivar(adapter, 1, 0, 0); | |
021230d4 | 2940 | |
396e799c | 2941 | e_info(hw, "Legacy interrupt IVAR setup done\n"); |
9a799d71 AK |
2942 | } |
2943 | ||
43e69bf0 AD |
2944 | /** |
2945 | * ixgbe_configure_tx_ring - Configure 8259x Tx ring after Reset | |
2946 | * @adapter: board private structure | |
2947 | * @ring: structure containing ring specific data | |
2948 | * | |
2949 | * Configure the Tx descriptor ring after a reset. | |
2950 | **/ | |
84418e3b AD |
2951 | void ixgbe_configure_tx_ring(struct ixgbe_adapter *adapter, |
2952 | struct ixgbe_ring *ring) | |
43e69bf0 AD |
2953 | { |
2954 | struct ixgbe_hw *hw = &adapter->hw; | |
2955 | u64 tdba = ring->dma; | |
2f1860b8 | 2956 | int wait_loop = 10; |
b88c6de2 | 2957 | u32 txdctl = IXGBE_TXDCTL_ENABLE; |
bf29ee6c | 2958 | u8 reg_idx = ring->reg_idx; |
43e69bf0 | 2959 | |
2f1860b8 | 2960 | /* disable queue to avoid issues while updating state */ |
b88c6de2 | 2961 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), 0); |
2f1860b8 AD |
2962 | IXGBE_WRITE_FLUSH(hw); |
2963 | ||
43e69bf0 | 2964 | IXGBE_WRITE_REG(hw, IXGBE_TDBAL(reg_idx), |
e8e9f696 | 2965 | (tdba & DMA_BIT_MASK(32))); |
43e69bf0 AD |
2966 | IXGBE_WRITE_REG(hw, IXGBE_TDBAH(reg_idx), (tdba >> 32)); |
2967 | IXGBE_WRITE_REG(hw, IXGBE_TDLEN(reg_idx), | |
2968 | ring->count * sizeof(union ixgbe_adv_tx_desc)); | |
2969 | IXGBE_WRITE_REG(hw, IXGBE_TDH(reg_idx), 0); | |
2970 | IXGBE_WRITE_REG(hw, IXGBE_TDT(reg_idx), 0); | |
2a1a091c | 2971 | ring->tail = adapter->io_addr + IXGBE_TDT(reg_idx); |
43e69bf0 | 2972 | |
b88c6de2 AD |
2973 | /* |
2974 | * set WTHRESH to encourage burst writeback, it should not be set | |
67da097e ET |
2975 | * higher than 1 when: |
2976 | * - ITR is 0 as it could cause false TX hangs | |
2977 | * - ITR is set to > 100k int/sec and BQL is enabled | |
b88c6de2 AD |
2978 | * |
2979 | * In order to avoid issues WTHRESH + PTHRESH should always be equal | |
2980 | * to or less than the number of on chip descriptors, which is | |
2981 | * currently 40. | |
2982 | */ | |
67da097e | 2983 | if (!ring->q_vector || (ring->q_vector->itr < IXGBE_100K_ITR)) |
b88c6de2 AD |
2984 | txdctl |= (1 << 16); /* WTHRESH = 1 */ |
2985 | else | |
2986 | txdctl |= (8 << 16); /* WTHRESH = 8 */ | |
2987 | ||
e954b374 AD |
2988 | /* |
2989 | * Setting PTHRESH to 32 both improves performance | |
2990 | * and avoids a TX hang with DFP enabled | |
2991 | */ | |
b88c6de2 AD |
2992 | txdctl |= (1 << 8) | /* HTHRESH = 1 */ |
2993 | 32; /* PTHRESH = 32 */ | |
2f1860b8 AD |
2994 | |
2995 | /* reinitialize flowdirector state */ | |
39cb681b | 2996 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { |
ee9e0f0b AD |
2997 | ring->atr_sample_rate = adapter->atr_sample_rate; |
2998 | ring->atr_count = 0; | |
2999 | set_bit(__IXGBE_TX_FDIR_INIT_DONE, &ring->state); | |
3000 | } else { | |
3001 | ring->atr_sample_rate = 0; | |
3002 | } | |
2f1860b8 | 3003 | |
fd786b7b AD |
3004 | /* initialize XPS */ |
3005 | if (!test_and_set_bit(__IXGBE_TX_XPS_INIT_DONE, &ring->state)) { | |
3006 | struct ixgbe_q_vector *q_vector = ring->q_vector; | |
3007 | ||
3008 | if (q_vector) | |
2a47fa45 | 3009 | netif_set_xps_queue(ring->netdev, |
fd786b7b AD |
3010 | &q_vector->affinity_mask, |
3011 | ring->queue_index); | |
3012 | } | |
3013 | ||
c84d324c JF |
3014 | clear_bit(__IXGBE_HANG_CHECK_ARMED, &ring->state); |
3015 | ||
2f1860b8 | 3016 | /* enable queue */ |
2f1860b8 AD |
3017 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), txdctl); |
3018 | ||
3019 | /* TXDCTL.EN will return 0 on 82598 if link is down, so skip it */ | |
3020 | if (hw->mac.type == ixgbe_mac_82598EB && | |
3021 | !(IXGBE_READ_REG(hw, IXGBE_LINKS) & IXGBE_LINKS_UP)) | |
3022 | return; | |
3023 | ||
3024 | /* poll to verify queue is enabled */ | |
3025 | do { | |
032b4325 | 3026 | usleep_range(1000, 2000); |
2f1860b8 AD |
3027 | txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(reg_idx)); |
3028 | } while (--wait_loop && !(txdctl & IXGBE_TXDCTL_ENABLE)); | |
3029 | if (!wait_loop) | |
3030 | e_err(drv, "Could not enable Tx Queue %d\n", reg_idx); | |
43e69bf0 AD |
3031 | } |
3032 | ||
120ff942 AD |
3033 | static void ixgbe_setup_mtqc(struct ixgbe_adapter *adapter) |
3034 | { | |
3035 | struct ixgbe_hw *hw = &adapter->hw; | |
671c0adb | 3036 | u32 rttdcs, mtqc; |
8b1c0b24 | 3037 | u8 tcs = netdev_get_num_tc(adapter->netdev); |
120ff942 AD |
3038 | |
3039 | if (hw->mac.type == ixgbe_mac_82598EB) | |
3040 | return; | |
3041 | ||
3042 | /* disable the arbiter while setting MTQC */ | |
3043 | rttdcs = IXGBE_READ_REG(hw, IXGBE_RTTDCS); | |
3044 | rttdcs |= IXGBE_RTTDCS_ARBDIS; | |
3045 | IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, rttdcs); | |
3046 | ||
3047 | /* set transmit pool layout */ | |
671c0adb AD |
3048 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { |
3049 | mtqc = IXGBE_MTQC_VT_ENA; | |
3050 | if (tcs > 4) | |
3051 | mtqc |= IXGBE_MTQC_RT_ENA | IXGBE_MTQC_8TC_8TQ; | |
3052 | else if (tcs > 1) | |
3053 | mtqc |= IXGBE_MTQC_RT_ENA | IXGBE_MTQC_4TC_4TQ; | |
3054 | else if (adapter->ring_feature[RING_F_RSS].indices == 4) | |
3055 | mtqc |= IXGBE_MTQC_32VF; | |
3056 | else | |
3057 | mtqc |= IXGBE_MTQC_64VF; | |
3058 | } else { | |
3059 | if (tcs > 4) | |
3060 | mtqc = IXGBE_MTQC_RT_ENA | IXGBE_MTQC_8TC_8TQ; | |
3061 | else if (tcs > 1) | |
3062 | mtqc = IXGBE_MTQC_RT_ENA | IXGBE_MTQC_4TC_4TQ; | |
8b1c0b24 | 3063 | else |
671c0adb AD |
3064 | mtqc = IXGBE_MTQC_64Q_1PB; |
3065 | } | |
120ff942 | 3066 | |
671c0adb | 3067 | IXGBE_WRITE_REG(hw, IXGBE_MTQC, mtqc); |
120ff942 | 3068 | |
671c0adb AD |
3069 | /* Enable Security TX Buffer IFG for multiple pb */ |
3070 | if (tcs) { | |
3071 | u32 sectx = IXGBE_READ_REG(hw, IXGBE_SECTXMINIFG); | |
3072 | sectx |= IXGBE_SECTX_DCB; | |
3073 | IXGBE_WRITE_REG(hw, IXGBE_SECTXMINIFG, sectx); | |
120ff942 AD |
3074 | } |
3075 | ||
3076 | /* re-enable the arbiter */ | |
3077 | rttdcs &= ~IXGBE_RTTDCS_ARBDIS; | |
3078 | IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, rttdcs); | |
3079 | } | |
3080 | ||
9a799d71 | 3081 | /** |
3a581073 | 3082 | * ixgbe_configure_tx - Configure 8259x Transmit Unit after Reset |
9a799d71 AK |
3083 | * @adapter: board private structure |
3084 | * | |
3085 | * Configure the Tx unit of the MAC after a reset. | |
3086 | **/ | |
3087 | static void ixgbe_configure_tx(struct ixgbe_adapter *adapter) | |
3088 | { | |
2f1860b8 AD |
3089 | struct ixgbe_hw *hw = &adapter->hw; |
3090 | u32 dmatxctl; | |
43e69bf0 | 3091 | u32 i; |
9a799d71 | 3092 | |
2f1860b8 AD |
3093 | ixgbe_setup_mtqc(adapter); |
3094 | ||
3095 | if (hw->mac.type != ixgbe_mac_82598EB) { | |
3096 | /* DMATXCTL.EN must be before Tx queues are enabled */ | |
3097 | dmatxctl = IXGBE_READ_REG(hw, IXGBE_DMATXCTL); | |
3098 | dmatxctl |= IXGBE_DMATXCTL_TE; | |
3099 | IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL, dmatxctl); | |
3100 | } | |
3101 | ||
9a799d71 | 3102 | /* Setup the HW Tx Head and Tail descriptor pointers */ |
43e69bf0 AD |
3103 | for (i = 0; i < adapter->num_tx_queues; i++) |
3104 | ixgbe_configure_tx_ring(adapter, adapter->tx_ring[i]); | |
9a799d71 AK |
3105 | } |
3106 | ||
3ebe8fde AD |
3107 | static void ixgbe_enable_rx_drop(struct ixgbe_adapter *adapter, |
3108 | struct ixgbe_ring *ring) | |
3109 | { | |
3110 | struct ixgbe_hw *hw = &adapter->hw; | |
3111 | u8 reg_idx = ring->reg_idx; | |
3112 | u32 srrctl = IXGBE_READ_REG(hw, IXGBE_SRRCTL(reg_idx)); | |
3113 | ||
3114 | srrctl |= IXGBE_SRRCTL_DROP_EN; | |
3115 | ||
3116 | IXGBE_WRITE_REG(hw, IXGBE_SRRCTL(reg_idx), srrctl); | |
3117 | } | |
3118 | ||
3119 | static void ixgbe_disable_rx_drop(struct ixgbe_adapter *adapter, | |
3120 | struct ixgbe_ring *ring) | |
3121 | { | |
3122 | struct ixgbe_hw *hw = &adapter->hw; | |
3123 | u8 reg_idx = ring->reg_idx; | |
3124 | u32 srrctl = IXGBE_READ_REG(hw, IXGBE_SRRCTL(reg_idx)); | |
3125 | ||
3126 | srrctl &= ~IXGBE_SRRCTL_DROP_EN; | |
3127 | ||
3128 | IXGBE_WRITE_REG(hw, IXGBE_SRRCTL(reg_idx), srrctl); | |
3129 | } | |
3130 | ||
3131 | #ifdef CONFIG_IXGBE_DCB | |
3132 | void ixgbe_set_rx_drop_en(struct ixgbe_adapter *adapter) | |
3133 | #else | |
3134 | static void ixgbe_set_rx_drop_en(struct ixgbe_adapter *adapter) | |
3135 | #endif | |
3136 | { | |
3137 | int i; | |
3138 | bool pfc_en = adapter->dcb_cfg.pfc_mode_enable; | |
3139 | ||
3140 | if (adapter->ixgbe_ieee_pfc) | |
3141 | pfc_en |= !!(adapter->ixgbe_ieee_pfc->pfc_en); | |
3142 | ||
3143 | /* | |
3144 | * We should set the drop enable bit if: | |
3145 | * SR-IOV is enabled | |
3146 | * or | |
3147 | * Number of Rx queues > 1 and flow control is disabled | |
3148 | * | |
3149 | * This allows us to avoid head of line blocking for security | |
3150 | * and performance reasons. | |
3151 | */ | |
3152 | if (adapter->num_vfs || (adapter->num_rx_queues > 1 && | |
3153 | !(adapter->hw.fc.current_mode & ixgbe_fc_tx_pause) && !pfc_en)) { | |
3154 | for (i = 0; i < adapter->num_rx_queues; i++) | |
3155 | ixgbe_enable_rx_drop(adapter, adapter->rx_ring[i]); | |
3156 | } else { | |
3157 | for (i = 0; i < adapter->num_rx_queues; i++) | |
3158 | ixgbe_disable_rx_drop(adapter, adapter->rx_ring[i]); | |
3159 | } | |
3160 | } | |
3161 | ||
e8e26350 | 3162 | #define IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT 2 |
cc41ac7c | 3163 | |
a6616b42 | 3164 | static void ixgbe_configure_srrctl(struct ixgbe_adapter *adapter, |
e8e9f696 | 3165 | struct ixgbe_ring *rx_ring) |
cc41ac7c | 3166 | { |
45e9baa5 | 3167 | struct ixgbe_hw *hw = &adapter->hw; |
cc41ac7c | 3168 | u32 srrctl; |
bf29ee6c | 3169 | u8 reg_idx = rx_ring->reg_idx; |
3be1adfb | 3170 | |
45e9baa5 AD |
3171 | if (hw->mac.type == ixgbe_mac_82598EB) { |
3172 | u16 mask = adapter->ring_feature[RING_F_RSS].mask; | |
cc41ac7c | 3173 | |
45e9baa5 AD |
3174 | /* |
3175 | * if VMDq is not active we must program one srrctl register | |
3176 | * per RSS queue since we have enabled RDRXCTL.MVMEN | |
3177 | */ | |
3178 | reg_idx &= mask; | |
3179 | } | |
cc41ac7c | 3180 | |
45e9baa5 AD |
3181 | /* configure header buffer length, needed for RSC */ |
3182 | srrctl = IXGBE_RX_HDR_SIZE << IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT; | |
afafd5b0 | 3183 | |
45e9baa5 | 3184 | /* configure the packet buffer length */ |
f800326d | 3185 | srrctl |= ixgbe_rx_bufsz(rx_ring) >> IXGBE_SRRCTL_BSIZEPKT_SHIFT; |
45e9baa5 AD |
3186 | |
3187 | /* configure descriptor type */ | |
f800326d | 3188 | srrctl |= IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF; |
e8e26350 | 3189 | |
45e9baa5 | 3190 | IXGBE_WRITE_REG(hw, IXGBE_SRRCTL(reg_idx), srrctl); |
cc41ac7c | 3191 | } |
9a799d71 | 3192 | |
05abb126 | 3193 | static void ixgbe_setup_mrqc(struct ixgbe_adapter *adapter) |
0cefafad | 3194 | { |
05abb126 AD |
3195 | struct ixgbe_hw *hw = &adapter->hw; |
3196 | static const u32 seed[10] = { 0xE291D73D, 0x1805EC6C, 0x2A94B30D, | |
e8e9f696 JP |
3197 | 0xA54F2BEC, 0xEA49AF7C, 0xE214AD3D, 0xB855AABE, |
3198 | 0x6A3E67EA, 0x14364D17, 0x3BED200D}; | |
05abb126 AD |
3199 | u32 mrqc = 0, reta = 0; |
3200 | u32 rxcsum; | |
3201 | int i, j; | |
671c0adb AD |
3202 | u16 rss_i = adapter->ring_feature[RING_F_RSS].indices; |
3203 | ||
671c0adb AD |
3204 | /* |
3205 | * Program table for at least 2 queues w/ SR-IOV so that VFs can | |
3206 | * make full use of any rings they may have. We will use the | |
3207 | * PSRTYPE register to control how many rings we use within the PF. | |
3208 | */ | |
3209 | if ((adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) && (rss_i < 2)) | |
3210 | rss_i = 2; | |
0cefafad | 3211 | |
05abb126 AD |
3212 | /* Fill out hash function seeds */ |
3213 | for (i = 0; i < 10; i++) | |
3214 | IXGBE_WRITE_REG(hw, IXGBE_RSSRK(i), seed[i]); | |
3215 | ||
3216 | /* Fill out redirection table */ | |
3217 | for (i = 0, j = 0; i < 128; i++, j++) { | |
671c0adb | 3218 | if (j == rss_i) |
05abb126 AD |
3219 | j = 0; |
3220 | /* reta = 4-byte sliding window of | |
3221 | * 0x00..(indices-1)(indices-1)00..etc. */ | |
3222 | reta = (reta << 8) | (j * 0x11); | |
3223 | if ((i & 3) == 3) | |
3224 | IXGBE_WRITE_REG(hw, IXGBE_RETA(i >> 2), reta); | |
3225 | } | |
0cefafad | 3226 | |
05abb126 AD |
3227 | /* Disable indicating checksum in descriptor, enables RSS hash */ |
3228 | rxcsum = IXGBE_READ_REG(hw, IXGBE_RXCSUM); | |
3229 | rxcsum |= IXGBE_RXCSUM_PCSD; | |
3230 | IXGBE_WRITE_REG(hw, IXGBE_RXCSUM, rxcsum); | |
3231 | ||
671c0adb | 3232 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
fbe7ca7f | 3233 | if (adapter->ring_feature[RING_F_RSS].mask) |
671c0adb | 3234 | mrqc = IXGBE_MRQC_RSSEN; |
8b1c0b24 | 3235 | } else { |
671c0adb AD |
3236 | u8 tcs = netdev_get_num_tc(adapter->netdev); |
3237 | ||
3238 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { | |
3239 | if (tcs > 4) | |
3240 | mrqc = IXGBE_MRQC_VMDQRT8TCEN; /* 8 TCs */ | |
3241 | else if (tcs > 1) | |
3242 | mrqc = IXGBE_MRQC_VMDQRT4TCEN; /* 4 TCs */ | |
3243 | else if (adapter->ring_feature[RING_F_RSS].indices == 4) | |
3244 | mrqc = IXGBE_MRQC_VMDQRSS32EN; | |
8b1c0b24 | 3245 | else |
671c0adb AD |
3246 | mrqc = IXGBE_MRQC_VMDQRSS64EN; |
3247 | } else { | |
3248 | if (tcs > 4) | |
8b1c0b24 | 3249 | mrqc = IXGBE_MRQC_RTRSS8TCEN; |
671c0adb AD |
3250 | else if (tcs > 1) |
3251 | mrqc = IXGBE_MRQC_RTRSS4TCEN; | |
3252 | else | |
3253 | mrqc = IXGBE_MRQC_RSSEN; | |
8b1c0b24 | 3254 | } |
0cefafad JB |
3255 | } |
3256 | ||
05abb126 | 3257 | /* Perform hash on these packet types */ |
671c0adb AD |
3258 | mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4 | |
3259 | IXGBE_MRQC_RSS_FIELD_IPV4_TCP | | |
3260 | IXGBE_MRQC_RSS_FIELD_IPV6 | | |
3261 | IXGBE_MRQC_RSS_FIELD_IPV6_TCP; | |
05abb126 | 3262 | |
ef6afc0c AD |
3263 | if (adapter->flags2 & IXGBE_FLAG2_RSS_FIELD_IPV4_UDP) |
3264 | mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4_UDP; | |
3265 | if (adapter->flags2 & IXGBE_FLAG2_RSS_FIELD_IPV6_UDP) | |
3266 | mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_UDP; | |
3267 | ||
05abb126 | 3268 | IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc); |
0cefafad JB |
3269 | } |
3270 | ||
bb5a9ad2 NS |
3271 | /** |
3272 | * ixgbe_configure_rscctl - enable RSC for the indicated ring | |
3273 | * @adapter: address of board private structure | |
3274 | * @index: index of ring to set | |
bb5a9ad2 | 3275 | **/ |
082757af | 3276 | static void ixgbe_configure_rscctl(struct ixgbe_adapter *adapter, |
7367096a | 3277 | struct ixgbe_ring *ring) |
bb5a9ad2 | 3278 | { |
bb5a9ad2 | 3279 | struct ixgbe_hw *hw = &adapter->hw; |
bb5a9ad2 | 3280 | u32 rscctrl; |
bf29ee6c | 3281 | u8 reg_idx = ring->reg_idx; |
7367096a | 3282 | |
7d637bcc | 3283 | if (!ring_is_rsc_enabled(ring)) |
7367096a | 3284 | return; |
bb5a9ad2 | 3285 | |
7367096a | 3286 | rscctrl = IXGBE_READ_REG(hw, IXGBE_RSCCTL(reg_idx)); |
bb5a9ad2 NS |
3287 | rscctrl |= IXGBE_RSCCTL_RSCEN; |
3288 | /* | |
3289 | * we must limit the number of descriptors so that the | |
3290 | * total size of max desc * buf_len is not greater | |
642c680e | 3291 | * than 65536 |
bb5a9ad2 | 3292 | */ |
f800326d | 3293 | rscctrl |= IXGBE_RSCCTL_MAXDESC_16; |
7367096a | 3294 | IXGBE_WRITE_REG(hw, IXGBE_RSCCTL(reg_idx), rscctrl); |
bb5a9ad2 NS |
3295 | } |
3296 | ||
9e10e045 AD |
3297 | #define IXGBE_MAX_RX_DESC_POLL 10 |
3298 | static void ixgbe_rx_desc_queue_enable(struct ixgbe_adapter *adapter, | |
3299 | struct ixgbe_ring *ring) | |
3300 | { | |
3301 | struct ixgbe_hw *hw = &adapter->hw; | |
9e10e045 AD |
3302 | int wait_loop = IXGBE_MAX_RX_DESC_POLL; |
3303 | u32 rxdctl; | |
bf29ee6c | 3304 | u8 reg_idx = ring->reg_idx; |
9e10e045 | 3305 | |
b0483c8f MR |
3306 | if (ixgbe_removed(hw->hw_addr)) |
3307 | return; | |
9e10e045 AD |
3308 | /* RXDCTL.EN will return 0 on 82598 if link is down, so skip it */ |
3309 | if (hw->mac.type == ixgbe_mac_82598EB && | |
3310 | !(IXGBE_READ_REG(hw, IXGBE_LINKS) & IXGBE_LINKS_UP)) | |
3311 | return; | |
3312 | ||
3313 | do { | |
032b4325 | 3314 | usleep_range(1000, 2000); |
9e10e045 AD |
3315 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); |
3316 | } while (--wait_loop && !(rxdctl & IXGBE_RXDCTL_ENABLE)); | |
3317 | ||
3318 | if (!wait_loop) { | |
3319 | e_err(drv, "RXDCTL.ENABLE on Rx queue %d not set within " | |
3320 | "the polling period\n", reg_idx); | |
3321 | } | |
3322 | } | |
3323 | ||
2d39d576 YZ |
3324 | void ixgbe_disable_rx_queue(struct ixgbe_adapter *adapter, |
3325 | struct ixgbe_ring *ring) | |
3326 | { | |
3327 | struct ixgbe_hw *hw = &adapter->hw; | |
3328 | int wait_loop = IXGBE_MAX_RX_DESC_POLL; | |
3329 | u32 rxdctl; | |
3330 | u8 reg_idx = ring->reg_idx; | |
3331 | ||
b0483c8f MR |
3332 | if (ixgbe_removed(hw->hw_addr)) |
3333 | return; | |
2d39d576 YZ |
3334 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); |
3335 | rxdctl &= ~IXGBE_RXDCTL_ENABLE; | |
3336 | ||
3337 | /* write value back with RXDCTL.ENABLE bit cleared */ | |
3338 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(reg_idx), rxdctl); | |
3339 | ||
3340 | if (hw->mac.type == ixgbe_mac_82598EB && | |
3341 | !(IXGBE_READ_REG(hw, IXGBE_LINKS) & IXGBE_LINKS_UP)) | |
3342 | return; | |
3343 | ||
3344 | /* the hardware may take up to 100us to really disable the rx queue */ | |
3345 | do { | |
3346 | udelay(10); | |
3347 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); | |
3348 | } while (--wait_loop && (rxdctl & IXGBE_RXDCTL_ENABLE)); | |
3349 | ||
3350 | if (!wait_loop) { | |
3351 | e_err(drv, "RXDCTL.ENABLE on Rx queue %d not cleared within " | |
3352 | "the polling period\n", reg_idx); | |
3353 | } | |
3354 | } | |
3355 | ||
84418e3b AD |
3356 | void ixgbe_configure_rx_ring(struct ixgbe_adapter *adapter, |
3357 | struct ixgbe_ring *ring) | |
acd37177 AD |
3358 | { |
3359 | struct ixgbe_hw *hw = &adapter->hw; | |
3360 | u64 rdba = ring->dma; | |
9e10e045 | 3361 | u32 rxdctl; |
bf29ee6c | 3362 | u8 reg_idx = ring->reg_idx; |
acd37177 | 3363 | |
9e10e045 AD |
3364 | /* disable queue to avoid issues while updating state */ |
3365 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); | |
2d39d576 | 3366 | ixgbe_disable_rx_queue(adapter, ring); |
9e10e045 | 3367 | |
acd37177 AD |
3368 | IXGBE_WRITE_REG(hw, IXGBE_RDBAL(reg_idx), (rdba & DMA_BIT_MASK(32))); |
3369 | IXGBE_WRITE_REG(hw, IXGBE_RDBAH(reg_idx), (rdba >> 32)); | |
3370 | IXGBE_WRITE_REG(hw, IXGBE_RDLEN(reg_idx), | |
3371 | ring->count * sizeof(union ixgbe_adv_rx_desc)); | |
3372 | IXGBE_WRITE_REG(hw, IXGBE_RDH(reg_idx), 0); | |
3373 | IXGBE_WRITE_REG(hw, IXGBE_RDT(reg_idx), 0); | |
2a1a091c | 3374 | ring->tail = adapter->io_addr + IXGBE_RDT(reg_idx); |
9e10e045 AD |
3375 | |
3376 | ixgbe_configure_srrctl(adapter, ring); | |
3377 | ixgbe_configure_rscctl(adapter, ring); | |
3378 | ||
3379 | if (hw->mac.type == ixgbe_mac_82598EB) { | |
3380 | /* | |
3381 | * enable cache line friendly hardware writes: | |
3382 | * PTHRESH=32 descriptors (half the internal cache), | |
3383 | * this also removes ugly rx_no_buffer_count increment | |
3384 | * HTHRESH=4 descriptors (to minimize latency on fetch) | |
3385 | * WTHRESH=8 burst writeback up to two cache lines | |
3386 | */ | |
3387 | rxdctl &= ~0x3FFFFF; | |
3388 | rxdctl |= 0x080420; | |
3389 | } | |
3390 | ||
3391 | /* enable receive descriptor ring */ | |
3392 | rxdctl |= IXGBE_RXDCTL_ENABLE; | |
3393 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(reg_idx), rxdctl); | |
3394 | ||
3395 | ixgbe_rx_desc_queue_enable(adapter, ring); | |
7d4987de | 3396 | ixgbe_alloc_rx_buffers(ring, ixgbe_desc_unused(ring)); |
acd37177 AD |
3397 | } |
3398 | ||
48654521 AD |
3399 | static void ixgbe_setup_psrtype(struct ixgbe_adapter *adapter) |
3400 | { | |
3401 | struct ixgbe_hw *hw = &adapter->hw; | |
fbe7ca7f | 3402 | int rss_i = adapter->ring_feature[RING_F_RSS].indices; |
2a47fa45 | 3403 | u16 pool; |
48654521 AD |
3404 | |
3405 | /* PSRTYPE must be initialized in non 82598 adapters */ | |
3406 | u32 psrtype = IXGBE_PSRTYPE_TCPHDR | | |
e8e9f696 JP |
3407 | IXGBE_PSRTYPE_UDPHDR | |
3408 | IXGBE_PSRTYPE_IPV4HDR | | |
48654521 | 3409 | IXGBE_PSRTYPE_L2HDR | |
e8e9f696 | 3410 | IXGBE_PSRTYPE_IPV6HDR; |
48654521 AD |
3411 | |
3412 | if (hw->mac.type == ixgbe_mac_82598EB) | |
3413 | return; | |
3414 | ||
fbe7ca7f AD |
3415 | if (rss_i > 3) |
3416 | psrtype |= 2 << 29; | |
3417 | else if (rss_i > 1) | |
3418 | psrtype |= 1 << 29; | |
48654521 | 3419 | |
2a47fa45 JF |
3420 | for_each_set_bit(pool, &adapter->fwd_bitmask, 32) |
3421 | IXGBE_WRITE_REG(hw, IXGBE_PSRTYPE(VMDQ_P(pool)), psrtype); | |
48654521 AD |
3422 | } |
3423 | ||
f5b4a52e AD |
3424 | static void ixgbe_configure_virtualization(struct ixgbe_adapter *adapter) |
3425 | { | |
3426 | struct ixgbe_hw *hw = &adapter->hw; | |
f5b4a52e | 3427 | u32 reg_offset, vf_shift; |
435b19f6 | 3428 | u32 gcr_ext, vmdctl; |
de4c7f65 | 3429 | int i; |
f5b4a52e AD |
3430 | |
3431 | if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) | |
3432 | return; | |
3433 | ||
3434 | vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL); | |
435b19f6 AD |
3435 | vmdctl |= IXGBE_VMD_CTL_VMDQ_EN; |
3436 | vmdctl &= ~IXGBE_VT_CTL_POOL_MASK; | |
1d9c0bfd | 3437 | vmdctl |= VMDQ_P(0) << IXGBE_VT_CTL_POOL_SHIFT; |
435b19f6 AD |
3438 | vmdctl |= IXGBE_VT_CTL_REPLEN; |
3439 | IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl); | |
f5b4a52e | 3440 | |
1d9c0bfd AD |
3441 | vf_shift = VMDQ_P(0) % 32; |
3442 | reg_offset = (VMDQ_P(0) >= 32) ? 1 : 0; | |
f5b4a52e AD |
3443 | |
3444 | /* Enable only the PF's pool for Tx/Rx */ | |
435b19f6 AD |
3445 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), (~0) << vf_shift); |
3446 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset ^ 1), reg_offset - 1); | |
3447 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), (~0) << vf_shift); | |
3448 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset ^ 1), reg_offset - 1); | |
9b735984 GR |
3449 | if (adapter->flags2 & IXGBE_FLAG2_BRIDGE_MODE_VEB) |
3450 | IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN); | |
f5b4a52e AD |
3451 | |
3452 | /* Map PF MAC address in RAR Entry 0 to first pool following VFs */ | |
1d9c0bfd | 3453 | hw->mac.ops.set_vmdq(hw, 0, VMDQ_P(0)); |
f5b4a52e AD |
3454 | |
3455 | /* | |
3456 | * Set up VF register offsets for selected VT Mode, | |
3457 | * i.e. 32 or 64 VFs for SR-IOV | |
3458 | */ | |
73079ea0 AD |
3459 | switch (adapter->ring_feature[RING_F_VMDQ].mask) { |
3460 | case IXGBE_82599_VMDQ_8Q_MASK: | |
3461 | gcr_ext = IXGBE_GCR_EXT_VT_MODE_16; | |
3462 | break; | |
3463 | case IXGBE_82599_VMDQ_4Q_MASK: | |
3464 | gcr_ext = IXGBE_GCR_EXT_VT_MODE_32; | |
3465 | break; | |
3466 | default: | |
3467 | gcr_ext = IXGBE_GCR_EXT_VT_MODE_64; | |
3468 | break; | |
3469 | } | |
3470 | ||
f5b4a52e AD |
3471 | IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr_ext); |
3472 | ||
435b19f6 | 3473 | |
a985b6c3 | 3474 | /* Enable MAC Anti-Spoofing */ |
435b19f6 | 3475 | hw->mac.ops.set_mac_anti_spoofing(hw, (adapter->num_vfs != 0), |
a985b6c3 | 3476 | adapter->num_vfs); |
de4c7f65 GR |
3477 | /* For VFs that have spoof checking turned off */ |
3478 | for (i = 0; i < adapter->num_vfs; i++) { | |
3479 | if (!adapter->vfinfo[i].spoofchk_enabled) | |
3480 | ixgbe_ndo_set_vf_spoofchk(adapter->netdev, i, false); | |
3481 | } | |
f5b4a52e AD |
3482 | } |
3483 | ||
477de6ed | 3484 | static void ixgbe_set_rx_buffer_len(struct ixgbe_adapter *adapter) |
9a799d71 | 3485 | { |
9a799d71 AK |
3486 | struct ixgbe_hw *hw = &adapter->hw; |
3487 | struct net_device *netdev = adapter->netdev; | |
3488 | int max_frame = netdev->mtu + ETH_HLEN + ETH_FCS_LEN; | |
477de6ed AD |
3489 | struct ixgbe_ring *rx_ring; |
3490 | int i; | |
3491 | u32 mhadd, hlreg0; | |
48654521 | 3492 | |
63f39bd1 | 3493 | #ifdef IXGBE_FCOE |
477de6ed AD |
3494 | /* adjust max frame to be able to do baby jumbo for FCoE */ |
3495 | if ((adapter->flags & IXGBE_FLAG_FCOE_ENABLED) && | |
3496 | (max_frame < IXGBE_FCOE_JUMBO_FRAME_SIZE)) | |
3497 | max_frame = IXGBE_FCOE_JUMBO_FRAME_SIZE; | |
9a799d71 | 3498 | |
477de6ed | 3499 | #endif /* IXGBE_FCOE */ |
872844dd AD |
3500 | |
3501 | /* adjust max frame to be at least the size of a standard frame */ | |
3502 | if (max_frame < (ETH_FRAME_LEN + ETH_FCS_LEN)) | |
3503 | max_frame = (ETH_FRAME_LEN + ETH_FCS_LEN); | |
3504 | ||
477de6ed AD |
3505 | mhadd = IXGBE_READ_REG(hw, IXGBE_MHADD); |
3506 | if (max_frame != (mhadd >> IXGBE_MHADD_MFS_SHIFT)) { | |
3507 | mhadd &= ~IXGBE_MHADD_MFS_MASK; | |
3508 | mhadd |= max_frame << IXGBE_MHADD_MFS_SHIFT; | |
3509 | ||
3510 | IXGBE_WRITE_REG(hw, IXGBE_MHADD, mhadd); | |
3511 | } | |
3512 | ||
3513 | hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0); | |
3514 | /* set jumbo enable since MHADD.MFS is keeping size locked at max_frame */ | |
3515 | hlreg0 |= IXGBE_HLREG0_JUMBOEN; | |
3516 | IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0); | |
9a799d71 | 3517 | |
0cefafad JB |
3518 | /* |
3519 | * Setup the HW Rx Head and Tail Descriptor Pointers and | |
3520 | * the Base and Length of the Rx Descriptor Ring | |
3521 | */ | |
9a799d71 | 3522 | for (i = 0; i < adapter->num_rx_queues; i++) { |
4a0b9ca0 | 3523 | rx_ring = adapter->rx_ring[i]; |
7d637bcc AD |
3524 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) |
3525 | set_ring_rsc_enabled(rx_ring); | |
1b3ff02e | 3526 | else |
7d637bcc | 3527 | clear_ring_rsc_enabled(rx_ring); |
477de6ed | 3528 | } |
477de6ed AD |
3529 | } |
3530 | ||
7367096a AD |
3531 | static void ixgbe_setup_rdrxctl(struct ixgbe_adapter *adapter) |
3532 | { | |
3533 | struct ixgbe_hw *hw = &adapter->hw; | |
3534 | u32 rdrxctl = IXGBE_READ_REG(hw, IXGBE_RDRXCTL); | |
3535 | ||
3536 | switch (hw->mac.type) { | |
3537 | case ixgbe_mac_82598EB: | |
3538 | /* | |
3539 | * For VMDq support of different descriptor types or | |
3540 | * buffer sizes through the use of multiple SRRCTL | |
3541 | * registers, RDRXCTL.MVMEN must be set to 1 | |
3542 | * | |
3543 | * also, the manual doesn't mention it clearly but DCA hints | |
3544 | * will only use queue 0's tags unless this bit is set. Side | |
3545 | * effects of setting this bit are only that SRRCTL must be | |
3546 | * fully programmed [0..15] | |
3547 | */ | |
3548 | rdrxctl |= IXGBE_RDRXCTL_MVMEN; | |
3549 | break; | |
3550 | case ixgbe_mac_82599EB: | |
b93a2226 | 3551 | case ixgbe_mac_X540: |
7367096a AD |
3552 | /* Disable RSC for ACK packets */ |
3553 | IXGBE_WRITE_REG(hw, IXGBE_RSCDBU, | |
3554 | (IXGBE_RSCDBU_RSCACKDIS | IXGBE_READ_REG(hw, IXGBE_RSCDBU))); | |
3555 | rdrxctl &= ~IXGBE_RDRXCTL_RSCFRSTSIZE; | |
3556 | /* hardware requires some bits to be set by default */ | |
3557 | rdrxctl |= (IXGBE_RDRXCTL_RSCACKC | IXGBE_RDRXCTL_FCOE_WRFIX); | |
3558 | rdrxctl |= IXGBE_RDRXCTL_CRCSTRIP; | |
3559 | break; | |
3560 | default: | |
3561 | /* We should do nothing since we don't know this hardware */ | |
3562 | return; | |
3563 | } | |
3564 | ||
3565 | IXGBE_WRITE_REG(hw, IXGBE_RDRXCTL, rdrxctl); | |
3566 | } | |
3567 | ||
477de6ed AD |
3568 | /** |
3569 | * ixgbe_configure_rx - Configure 8259x Receive Unit after Reset | |
3570 | * @adapter: board private structure | |
3571 | * | |
3572 | * Configure the Rx unit of the MAC after a reset. | |
3573 | **/ | |
3574 | static void ixgbe_configure_rx(struct ixgbe_adapter *adapter) | |
3575 | { | |
3576 | struct ixgbe_hw *hw = &adapter->hw; | |
477de6ed | 3577 | int i; |
6dcc28b9 | 3578 | u32 rxctrl, rfctl; |
477de6ed AD |
3579 | |
3580 | /* disable receives while setting up the descriptors */ | |
3581 | rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL); | |
3582 | IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl & ~IXGBE_RXCTRL_RXEN); | |
3583 | ||
3584 | ixgbe_setup_psrtype(adapter); | |
7367096a | 3585 | ixgbe_setup_rdrxctl(adapter); |
477de6ed | 3586 | |
6dcc28b9 JK |
3587 | /* RSC Setup */ |
3588 | rfctl = IXGBE_READ_REG(hw, IXGBE_RFCTL); | |
3589 | rfctl &= ~IXGBE_RFCTL_RSC_DIS; | |
3590 | if (!(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED)) | |
3591 | rfctl |= IXGBE_RFCTL_RSC_DIS; | |
3592 | IXGBE_WRITE_REG(hw, IXGBE_RFCTL, rfctl); | |
3593 | ||
9e10e045 | 3594 | /* Program registers for the distribution of queues */ |
f5b4a52e | 3595 | ixgbe_setup_mrqc(adapter); |
f5b4a52e | 3596 | |
477de6ed AD |
3597 | /* set_rx_buffer_len must be called before ring initialization */ |
3598 | ixgbe_set_rx_buffer_len(adapter); | |
3599 | ||
3600 | /* | |
3601 | * Setup the HW Rx Head and Tail Descriptor Pointers and | |
3602 | * the Base and Length of the Rx Descriptor Ring | |
3603 | */ | |
9e10e045 AD |
3604 | for (i = 0; i < adapter->num_rx_queues; i++) |
3605 | ixgbe_configure_rx_ring(adapter, adapter->rx_ring[i]); | |
177db6ff | 3606 | |
9e10e045 AD |
3607 | /* disable drop enable for 82598 parts */ |
3608 | if (hw->mac.type == ixgbe_mac_82598EB) | |
3609 | rxctrl |= IXGBE_RXCTRL_DMBYPS; | |
3610 | ||
3611 | /* enable all receives */ | |
3612 | rxctrl |= IXGBE_RXCTRL_RXEN; | |
3613 | hw->mac.ops.enable_rx_dma(hw, rxctrl); | |
9a799d71 AK |
3614 | } |
3615 | ||
80d5c368 PM |
3616 | static int ixgbe_vlan_rx_add_vid(struct net_device *netdev, |
3617 | __be16 proto, u16 vid) | |
068c89b0 DS |
3618 | { |
3619 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
3620 | struct ixgbe_hw *hw = &adapter->hw; | |
3621 | ||
3622 | /* add VID to filter table */ | |
1d9c0bfd | 3623 | hw->mac.ops.set_vfta(&adapter->hw, vid, VMDQ_P(0), true); |
f62bbb5e | 3624 | set_bit(vid, adapter->active_vlans); |
8e586137 JP |
3625 | |
3626 | return 0; | |
068c89b0 DS |
3627 | } |
3628 | ||
80d5c368 PM |
3629 | static int ixgbe_vlan_rx_kill_vid(struct net_device *netdev, |
3630 | __be16 proto, u16 vid) | |
068c89b0 DS |
3631 | { |
3632 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
3633 | struct ixgbe_hw *hw = &adapter->hw; | |
3634 | ||
068c89b0 | 3635 | /* remove VID from filter table */ |
1d9c0bfd | 3636 | hw->mac.ops.set_vfta(&adapter->hw, vid, VMDQ_P(0), false); |
f62bbb5e | 3637 | clear_bit(vid, adapter->active_vlans); |
8e586137 JP |
3638 | |
3639 | return 0; | |
068c89b0 DS |
3640 | } |
3641 | ||
f62bbb5e JG |
3642 | /** |
3643 | * ixgbe_vlan_strip_disable - helper to disable hw vlan stripping | |
3644 | * @adapter: driver data | |
3645 | */ | |
3646 | static void ixgbe_vlan_strip_disable(struct ixgbe_adapter *adapter) | |
3647 | { | |
3648 | struct ixgbe_hw *hw = &adapter->hw; | |
3649 | u32 vlnctrl; | |
5f6c0181 JB |
3650 | int i, j; |
3651 | ||
3652 | switch (hw->mac.type) { | |
3653 | case ixgbe_mac_82598EB: | |
f62bbb5e JG |
3654 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); |
3655 | vlnctrl &= ~IXGBE_VLNCTRL_VME; | |
5f6c0181 JB |
3656 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); |
3657 | break; | |
3658 | case ixgbe_mac_82599EB: | |
b93a2226 | 3659 | case ixgbe_mac_X540: |
5f6c0181 | 3660 | for (i = 0; i < adapter->num_rx_queues; i++) { |
2a47fa45 JF |
3661 | struct ixgbe_ring *ring = adapter->rx_ring[i]; |
3662 | ||
3663 | if (ring->l2_accel_priv) | |
3664 | continue; | |
3665 | j = ring->reg_idx; | |
5f6c0181 JB |
3666 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(j)); |
3667 | vlnctrl &= ~IXGBE_RXDCTL_VME; | |
3668 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(j), vlnctrl); | |
3669 | } | |
3670 | break; | |
3671 | default: | |
3672 | break; | |
3673 | } | |
3674 | } | |
3675 | ||
3676 | /** | |
f62bbb5e | 3677 | * ixgbe_vlan_strip_enable - helper to enable hw vlan stripping |
5f6c0181 JB |
3678 | * @adapter: driver data |
3679 | */ | |
f62bbb5e | 3680 | static void ixgbe_vlan_strip_enable(struct ixgbe_adapter *adapter) |
5f6c0181 JB |
3681 | { |
3682 | struct ixgbe_hw *hw = &adapter->hw; | |
f62bbb5e | 3683 | u32 vlnctrl; |
5f6c0181 JB |
3684 | int i, j; |
3685 | ||
3686 | switch (hw->mac.type) { | |
3687 | case ixgbe_mac_82598EB: | |
f62bbb5e JG |
3688 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); |
3689 | vlnctrl |= IXGBE_VLNCTRL_VME; | |
5f6c0181 JB |
3690 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); |
3691 | break; | |
3692 | case ixgbe_mac_82599EB: | |
b93a2226 | 3693 | case ixgbe_mac_X540: |
5f6c0181 | 3694 | for (i = 0; i < adapter->num_rx_queues; i++) { |
2a47fa45 JF |
3695 | struct ixgbe_ring *ring = adapter->rx_ring[i]; |
3696 | ||
3697 | if (ring->l2_accel_priv) | |
3698 | continue; | |
3699 | j = ring->reg_idx; | |
5f6c0181 JB |
3700 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(j)); |
3701 | vlnctrl |= IXGBE_RXDCTL_VME; | |
3702 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(j), vlnctrl); | |
3703 | } | |
3704 | break; | |
3705 | default: | |
3706 | break; | |
3707 | } | |
3708 | } | |
3709 | ||
9a799d71 AK |
3710 | static void ixgbe_restore_vlan(struct ixgbe_adapter *adapter) |
3711 | { | |
f62bbb5e | 3712 | u16 vid; |
9a799d71 | 3713 | |
80d5c368 | 3714 | ixgbe_vlan_rx_add_vid(adapter->netdev, htons(ETH_P_8021Q), 0); |
f62bbb5e JG |
3715 | |
3716 | for_each_set_bit(vid, adapter->active_vlans, VLAN_N_VID) | |
80d5c368 | 3717 | ixgbe_vlan_rx_add_vid(adapter->netdev, htons(ETH_P_8021Q), vid); |
9a799d71 AK |
3718 | } |
3719 | ||
b335e75b JK |
3720 | /** |
3721 | * ixgbe_write_mc_addr_list - write multicast addresses to MTA | |
3722 | * @netdev: network interface device structure | |
3723 | * | |
3724 | * Writes multicast address list to the MTA hash table. | |
3725 | * Returns: -ENOMEM on failure | |
3726 | * 0 on no addresses written | |
3727 | * X on writing X addresses to MTA | |
3728 | **/ | |
3729 | static int ixgbe_write_mc_addr_list(struct net_device *netdev) | |
3730 | { | |
3731 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
3732 | struct ixgbe_hw *hw = &adapter->hw; | |
3733 | ||
3734 | if (!netif_running(netdev)) | |
3735 | return 0; | |
3736 | ||
3737 | if (hw->mac.ops.update_mc_addr_list) | |
3738 | hw->mac.ops.update_mc_addr_list(hw, netdev); | |
3739 | else | |
3740 | return -ENOMEM; | |
3741 | ||
3742 | #ifdef CONFIG_PCI_IOV | |
5d7daa35 | 3743 | ixgbe_restore_vf_multicasts(adapter); |
b335e75b JK |
3744 | #endif |
3745 | ||
3746 | return netdev_mc_count(netdev); | |
3747 | } | |
3748 | ||
5d7daa35 JK |
3749 | #ifdef CONFIG_PCI_IOV |
3750 | void ixgbe_full_sync_mac_table(struct ixgbe_adapter *adapter) | |
3751 | { | |
3752 | struct ixgbe_hw *hw = &adapter->hw; | |
3753 | int i; | |
3754 | for (i = 0; i < hw->mac.num_rar_entries; i++) { | |
3755 | if (adapter->mac_table[i].state & IXGBE_MAC_STATE_IN_USE) | |
3756 | hw->mac.ops.set_rar(hw, i, adapter->mac_table[i].addr, | |
3757 | adapter->mac_table[i].queue, | |
3758 | IXGBE_RAH_AV); | |
3759 | else | |
3760 | hw->mac.ops.clear_rar(hw, i); | |
3761 | ||
3762 | adapter->mac_table[i].state &= ~(IXGBE_MAC_STATE_MODIFIED); | |
3763 | } | |
3764 | } | |
3765 | #endif | |
3766 | ||
3767 | static void ixgbe_sync_mac_table(struct ixgbe_adapter *adapter) | |
3768 | { | |
3769 | struct ixgbe_hw *hw = &adapter->hw; | |
3770 | int i; | |
3771 | for (i = 0; i < hw->mac.num_rar_entries; i++) { | |
3772 | if (adapter->mac_table[i].state & IXGBE_MAC_STATE_MODIFIED) { | |
3773 | if (adapter->mac_table[i].state & | |
3774 | IXGBE_MAC_STATE_IN_USE) | |
3775 | hw->mac.ops.set_rar(hw, i, | |
3776 | adapter->mac_table[i].addr, | |
3777 | adapter->mac_table[i].queue, | |
3778 | IXGBE_RAH_AV); | |
3779 | else | |
3780 | hw->mac.ops.clear_rar(hw, i); | |
3781 | ||
3782 | adapter->mac_table[i].state &= | |
3783 | ~(IXGBE_MAC_STATE_MODIFIED); | |
3784 | } | |
3785 | } | |
3786 | } | |
3787 | ||
3788 | static void ixgbe_flush_sw_mac_table(struct ixgbe_adapter *adapter) | |
3789 | { | |
3790 | int i; | |
3791 | struct ixgbe_hw *hw = &adapter->hw; | |
3792 | ||
3793 | for (i = 0; i < hw->mac.num_rar_entries; i++) { | |
3794 | adapter->mac_table[i].state |= IXGBE_MAC_STATE_MODIFIED; | |
3795 | adapter->mac_table[i].state &= ~IXGBE_MAC_STATE_IN_USE; | |
3796 | memset(adapter->mac_table[i].addr, 0, ETH_ALEN); | |
3797 | adapter->mac_table[i].queue = 0; | |
3798 | } | |
3799 | ixgbe_sync_mac_table(adapter); | |
3800 | } | |
3801 | ||
3802 | static int ixgbe_available_rars(struct ixgbe_adapter *adapter) | |
3803 | { | |
3804 | struct ixgbe_hw *hw = &adapter->hw; | |
3805 | int i, count = 0; | |
3806 | ||
3807 | for (i = 0; i < hw->mac.num_rar_entries; i++) { | |
3808 | if (adapter->mac_table[i].state == 0) | |
3809 | count++; | |
3810 | } | |
3811 | return count; | |
3812 | } | |
3813 | ||
3814 | /* this function destroys the first RAR entry */ | |
3815 | static void ixgbe_mac_set_default_filter(struct ixgbe_adapter *adapter, | |
3816 | u8 *addr) | |
3817 | { | |
3818 | struct ixgbe_hw *hw = &adapter->hw; | |
3819 | ||
3820 | memcpy(&adapter->mac_table[0].addr, addr, ETH_ALEN); | |
3821 | adapter->mac_table[0].queue = VMDQ_P(0); | |
3822 | adapter->mac_table[0].state = (IXGBE_MAC_STATE_DEFAULT | | |
3823 | IXGBE_MAC_STATE_IN_USE); | |
3824 | hw->mac.ops.set_rar(hw, 0, adapter->mac_table[0].addr, | |
3825 | adapter->mac_table[0].queue, | |
3826 | IXGBE_RAH_AV); | |
3827 | } | |
3828 | ||
3829 | int ixgbe_add_mac_filter(struct ixgbe_adapter *adapter, u8 *addr, u16 queue) | |
3830 | { | |
3831 | struct ixgbe_hw *hw = &adapter->hw; | |
3832 | int i; | |
3833 | ||
3834 | if (is_zero_ether_addr(addr)) | |
3835 | return -EINVAL; | |
3836 | ||
3837 | for (i = 0; i < hw->mac.num_rar_entries; i++) { | |
3838 | if (adapter->mac_table[i].state & IXGBE_MAC_STATE_IN_USE) | |
3839 | continue; | |
3840 | adapter->mac_table[i].state |= (IXGBE_MAC_STATE_MODIFIED | | |
3841 | IXGBE_MAC_STATE_IN_USE); | |
3842 | ether_addr_copy(adapter->mac_table[i].addr, addr); | |
3843 | adapter->mac_table[i].queue = queue; | |
3844 | ixgbe_sync_mac_table(adapter); | |
3845 | return i; | |
3846 | } | |
3847 | return -ENOMEM; | |
3848 | } | |
3849 | ||
3850 | int ixgbe_del_mac_filter(struct ixgbe_adapter *adapter, u8 *addr, u16 queue) | |
3851 | { | |
3852 | /* search table for addr, if found, set to 0 and sync */ | |
3853 | int i; | |
3854 | struct ixgbe_hw *hw = &adapter->hw; | |
3855 | ||
3856 | if (is_zero_ether_addr(addr)) | |
3857 | return -EINVAL; | |
3858 | ||
3859 | for (i = 0; i < hw->mac.num_rar_entries; i++) { | |
3860 | if (ether_addr_equal(addr, adapter->mac_table[i].addr) && | |
3861 | adapter->mac_table[i].queue == queue) { | |
3862 | adapter->mac_table[i].state |= IXGBE_MAC_STATE_MODIFIED; | |
3863 | adapter->mac_table[i].state &= ~IXGBE_MAC_STATE_IN_USE; | |
3864 | memset(adapter->mac_table[i].addr, 0, ETH_ALEN); | |
3865 | adapter->mac_table[i].queue = 0; | |
3866 | ixgbe_sync_mac_table(adapter); | |
3867 | return 0; | |
3868 | } | |
3869 | } | |
3870 | return -ENOMEM; | |
3871 | } | |
2850062a AD |
3872 | /** |
3873 | * ixgbe_write_uc_addr_list - write unicast addresses to RAR table | |
3874 | * @netdev: network interface device structure | |
3875 | * | |
3876 | * Writes unicast address list to the RAR table. | |
3877 | * Returns: -ENOMEM on failure/insufficient address space | |
3878 | * 0 on no addresses written | |
3879 | * X on writing X addresses to the RAR table | |
3880 | **/ | |
5d7daa35 | 3881 | static int ixgbe_write_uc_addr_list(struct net_device *netdev, int vfn) |
2850062a AD |
3882 | { |
3883 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
2850062a AD |
3884 | int count = 0; |
3885 | ||
3886 | /* return ENOMEM indicating insufficient memory for addresses */ | |
5d7daa35 | 3887 | if (netdev_uc_count(netdev) > ixgbe_available_rars(adapter)) |
2850062a AD |
3888 | return -ENOMEM; |
3889 | ||
95447461 | 3890 | if (!netdev_uc_empty(netdev)) { |
2850062a | 3891 | struct netdev_hw_addr *ha; |
2850062a | 3892 | netdev_for_each_uc_addr(ha, netdev) { |
5d7daa35 JK |
3893 | ixgbe_del_mac_filter(adapter, ha->addr, vfn); |
3894 | ixgbe_add_mac_filter(adapter, ha->addr, vfn); | |
2850062a AD |
3895 | count++; |
3896 | } | |
3897 | } | |
2850062a AD |
3898 | return count; |
3899 | } | |
3900 | ||
9a799d71 | 3901 | /** |
2c5645cf | 3902 | * ixgbe_set_rx_mode - Unicast, Multicast and Promiscuous mode set |
9a799d71 AK |
3903 | * @netdev: network interface device structure |
3904 | * | |
2c5645cf CL |
3905 | * The set_rx_method entry point is called whenever the unicast/multicast |
3906 | * address list or the network interface flags are updated. This routine is | |
3907 | * responsible for configuring the hardware for proper unicast, multicast and | |
3908 | * promiscuous mode. | |
9a799d71 | 3909 | **/ |
7f870475 | 3910 | void ixgbe_set_rx_mode(struct net_device *netdev) |
9a799d71 AK |
3911 | { |
3912 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
3913 | struct ixgbe_hw *hw = &adapter->hw; | |
2850062a | 3914 | u32 fctrl, vmolr = IXGBE_VMOLR_BAM | IXGBE_VMOLR_AUPE; |
a9b8943e | 3915 | u32 vlnctrl; |
2850062a | 3916 | int count; |
9a799d71 AK |
3917 | |
3918 | /* Check for Promiscuous and All Multicast modes */ | |
9a799d71 | 3919 | fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL); |
a9b8943e | 3920 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); |
9a799d71 | 3921 | |
f5dc442b | 3922 | /* set all bits that we expect to always be set */ |
3f2d1c0f | 3923 | fctrl &= ~IXGBE_FCTRL_SBP; /* disable store-bad-packets */ |
f5dc442b AD |
3924 | fctrl |= IXGBE_FCTRL_BAM; |
3925 | fctrl |= IXGBE_FCTRL_DPF; /* discard pause frames when FC enabled */ | |
3926 | fctrl |= IXGBE_FCTRL_PMCF; | |
3927 | ||
2850062a AD |
3928 | /* clear the bits we are changing the status of */ |
3929 | fctrl &= ~(IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE); | |
a9b8943e | 3930 | vlnctrl &= ~(IXGBE_VLNCTRL_VFE | IXGBE_VLNCTRL_CFIEN); |
9a799d71 | 3931 | if (netdev->flags & IFF_PROMISC) { |
e433ea1f | 3932 | hw->addr_ctrl.user_set_promisc = true; |
9a799d71 | 3933 | fctrl |= (IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE); |
b335e75b | 3934 | vmolr |= IXGBE_VMOLR_MPE; |
670224f1 GR |
3935 | /* Only disable hardware filter vlans in promiscuous mode |
3936 | * if SR-IOV and VMDQ are disabled - otherwise ensure | |
3937 | * that hardware VLAN filters remain enabled. | |
3938 | */ | |
4556dc59 VY |
3939 | if (adapter->flags & (IXGBE_FLAG_VMDQ_ENABLED | |
3940 | IXGBE_FLAG_SRIOV_ENABLED)) | |
a9b8943e | 3941 | vlnctrl |= (IXGBE_VLNCTRL_VFE | IXGBE_VLNCTRL_CFIEN); |
9a799d71 | 3942 | } else { |
746b9f02 PM |
3943 | if (netdev->flags & IFF_ALLMULTI) { |
3944 | fctrl |= IXGBE_FCTRL_MPE; | |
2850062a | 3945 | vmolr |= IXGBE_VMOLR_MPE; |
746b9f02 | 3946 | } |
a9b8943e | 3947 | vlnctrl |= IXGBE_VLNCTRL_VFE; |
e433ea1f | 3948 | hw->addr_ctrl.user_set_promisc = false; |
9dcb373c JF |
3949 | } |
3950 | ||
3951 | /* | |
3952 | * Write addresses to available RAR registers, if there is not | |
3953 | * sufficient space to store all the addresses then enable | |
3954 | * unicast promiscuous mode | |
3955 | */ | |
5d7daa35 | 3956 | count = ixgbe_write_uc_addr_list(netdev, VMDQ_P(0)); |
9dcb373c JF |
3957 | if (count < 0) { |
3958 | fctrl |= IXGBE_FCTRL_UPE; | |
3959 | vmolr |= IXGBE_VMOLR_ROPE; | |
9a799d71 AK |
3960 | } |
3961 | ||
cf78959c ET |
3962 | /* Write addresses to the MTA, if the attempt fails |
3963 | * then we should just turn on promiscuous mode so | |
3964 | * that we can at least receive multicast traffic | |
3965 | */ | |
b335e75b JK |
3966 | count = ixgbe_write_mc_addr_list(netdev); |
3967 | if (count < 0) { | |
3968 | fctrl |= IXGBE_FCTRL_MPE; | |
3969 | vmolr |= IXGBE_VMOLR_MPE; | |
3970 | } else if (count) { | |
3971 | vmolr |= IXGBE_VMOLR_ROMPE; | |
3972 | } | |
1d9c0bfd AD |
3973 | |
3974 | if (hw->mac.type != ixgbe_mac_82598EB) { | |
3975 | vmolr |= IXGBE_READ_REG(hw, IXGBE_VMOLR(VMDQ_P(0))) & | |
2850062a AD |
3976 | ~(IXGBE_VMOLR_MPE | IXGBE_VMOLR_ROMPE | |
3977 | IXGBE_VMOLR_ROPE); | |
1d9c0bfd | 3978 | IXGBE_WRITE_REG(hw, IXGBE_VMOLR(VMDQ_P(0)), vmolr); |
2850062a AD |
3979 | } |
3980 | ||
3f2d1c0f BG |
3981 | /* This is useful for sniffing bad packets. */ |
3982 | if (adapter->netdev->features & NETIF_F_RXALL) { | |
3983 | /* UPE and MPE will be handled by normal PROMISC logic | |
3984 | * in e1000e_set_rx_mode */ | |
3985 | fctrl |= (IXGBE_FCTRL_SBP | /* Receive bad packets */ | |
3986 | IXGBE_FCTRL_BAM | /* RX All Bcast Pkts */ | |
3987 | IXGBE_FCTRL_PMCF); /* RX All MAC Ctrl Pkts */ | |
3988 | ||
3989 | fctrl &= ~(IXGBE_FCTRL_DPF); | |
3990 | /* NOTE: VLAN filtering is disabled by setting PROMISC */ | |
3991 | } | |
3992 | ||
a9b8943e | 3993 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); |
2850062a | 3994 | IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl); |
f62bbb5e | 3995 | |
f646968f | 3996 | if (netdev->features & NETIF_F_HW_VLAN_CTAG_RX) |
f62bbb5e JG |
3997 | ixgbe_vlan_strip_enable(adapter); |
3998 | else | |
3999 | ixgbe_vlan_strip_disable(adapter); | |
9a799d71 AK |
4000 | } |
4001 | ||
021230d4 AV |
4002 | static void ixgbe_napi_enable_all(struct ixgbe_adapter *adapter) |
4003 | { | |
4004 | int q_idx; | |
021230d4 | 4005 | |
5a85e737 ET |
4006 | for (q_idx = 0; q_idx < adapter->num_q_vectors; q_idx++) { |
4007 | ixgbe_qv_init_lock(adapter->q_vector[q_idx]); | |
49c7ffbe | 4008 | napi_enable(&adapter->q_vector[q_idx]->napi); |
5a85e737 | 4009 | } |
021230d4 AV |
4010 | } |
4011 | ||
4012 | static void ixgbe_napi_disable_all(struct ixgbe_adapter *adapter) | |
4013 | { | |
4014 | int q_idx; | |
021230d4 | 4015 | |
5a85e737 | 4016 | for (q_idx = 0; q_idx < adapter->num_q_vectors; q_idx++) { |
49c7ffbe | 4017 | napi_disable(&adapter->q_vector[q_idx]->napi); |
27d9ce4f | 4018 | while (!ixgbe_qv_disable(adapter->q_vector[q_idx])) { |
5a85e737 | 4019 | pr_info("QV %d locked\n", q_idx); |
27d9ce4f | 4020 | usleep_range(1000, 20000); |
5a85e737 ET |
4021 | } |
4022 | } | |
021230d4 AV |
4023 | } |
4024 | ||
7a6b6f51 | 4025 | #ifdef CONFIG_IXGBE_DCB |
49ce9c2c | 4026 | /** |
2f90b865 AD |
4027 | * ixgbe_configure_dcb - Configure DCB hardware |
4028 | * @adapter: ixgbe adapter struct | |
4029 | * | |
4030 | * This is called by the driver on open to configure the DCB hardware. | |
4031 | * This is also called by the gennetlink interface when reconfiguring | |
4032 | * the DCB state. | |
4033 | */ | |
4034 | static void ixgbe_configure_dcb(struct ixgbe_adapter *adapter) | |
4035 | { | |
4036 | struct ixgbe_hw *hw = &adapter->hw; | |
9806307a | 4037 | int max_frame = adapter->netdev->mtu + ETH_HLEN + ETH_FCS_LEN; |
2f90b865 | 4038 | |
67ebd791 AD |
4039 | if (!(adapter->flags & IXGBE_FLAG_DCB_ENABLED)) { |
4040 | if (hw->mac.type == ixgbe_mac_82598EB) | |
4041 | netif_set_gso_max_size(adapter->netdev, 65536); | |
4042 | return; | |
4043 | } | |
4044 | ||
4045 | if (hw->mac.type == ixgbe_mac_82598EB) | |
4046 | netif_set_gso_max_size(adapter->netdev, 32768); | |
4047 | ||
971060b1 | 4048 | #ifdef IXGBE_FCOE |
b120818e JF |
4049 | if (adapter->netdev->features & NETIF_F_FCOE_MTU) |
4050 | max_frame = max(max_frame, IXGBE_FCOE_JUMBO_FRAME_SIZE); | |
c27931da | 4051 | #endif |
b120818e JF |
4052 | |
4053 | /* reconfigure the hardware */ | |
4054 | if (adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE) { | |
c27931da JF |
4055 | ixgbe_dcb_calculate_tc_credits(hw, &adapter->dcb_cfg, max_frame, |
4056 | DCB_TX_CONFIG); | |
4057 | ixgbe_dcb_calculate_tc_credits(hw, &adapter->dcb_cfg, max_frame, | |
4058 | DCB_RX_CONFIG); | |
4059 | ixgbe_dcb_hw_config(hw, &adapter->dcb_cfg); | |
b120818e JF |
4060 | } else if (adapter->ixgbe_ieee_ets && adapter->ixgbe_ieee_pfc) { |
4061 | ixgbe_dcb_hw_ets(&adapter->hw, | |
4062 | adapter->ixgbe_ieee_ets, | |
4063 | max_frame); | |
4064 | ixgbe_dcb_hw_pfc_config(&adapter->hw, | |
4065 | adapter->ixgbe_ieee_pfc->pfc_en, | |
4066 | adapter->ixgbe_ieee_ets->prio_tc); | |
c27931da | 4067 | } |
8187cd48 JF |
4068 | |
4069 | /* Enable RSS Hash per TC */ | |
4070 | if (hw->mac.type != ixgbe_mac_82598EB) { | |
4ae63730 AD |
4071 | u32 msb = 0; |
4072 | u16 rss_i = adapter->ring_feature[RING_F_RSS].indices - 1; | |
8187cd48 | 4073 | |
d411a936 AD |
4074 | while (rss_i) { |
4075 | msb++; | |
4076 | rss_i >>= 1; | |
4077 | } | |
8187cd48 | 4078 | |
4ae63730 AD |
4079 | /* write msb to all 8 TCs in one write */ |
4080 | IXGBE_WRITE_REG(hw, IXGBE_RQTC, msb * 0x11111111); | |
8187cd48 | 4081 | } |
2f90b865 | 4082 | } |
9da712d2 JF |
4083 | #endif |
4084 | ||
4085 | /* Additional bittime to account for IXGBE framing */ | |
4086 | #define IXGBE_ETH_FRAMING 20 | |
4087 | ||
49ce9c2c | 4088 | /** |
9da712d2 JF |
4089 | * ixgbe_hpbthresh - calculate high water mark for flow control |
4090 | * | |
4091 | * @adapter: board private structure to calculate for | |
49ce9c2c | 4092 | * @pb: packet buffer to calculate |
9da712d2 JF |
4093 | */ |
4094 | static int ixgbe_hpbthresh(struct ixgbe_adapter *adapter, int pb) | |
4095 | { | |
4096 | struct ixgbe_hw *hw = &adapter->hw; | |
4097 | struct net_device *dev = adapter->netdev; | |
4098 | int link, tc, kb, marker; | |
4099 | u32 dv_id, rx_pba; | |
4100 | ||
4101 | /* Calculate max LAN frame size */ | |
4102 | tc = link = dev->mtu + ETH_HLEN + ETH_FCS_LEN + IXGBE_ETH_FRAMING; | |
4103 | ||
4104 | #ifdef IXGBE_FCOE | |
4105 | /* FCoE traffic class uses FCOE jumbo frames */ | |
800bd607 AD |
4106 | if ((dev->features & NETIF_F_FCOE_MTU) && |
4107 | (tc < IXGBE_FCOE_JUMBO_FRAME_SIZE) && | |
4108 | (pb == ixgbe_fcoe_get_tc(adapter))) | |
4109 | tc = IXGBE_FCOE_JUMBO_FRAME_SIZE; | |
9da712d2 | 4110 | #endif |
e5776620 | 4111 | |
9da712d2 JF |
4112 | /* Calculate delay value for device */ |
4113 | switch (hw->mac.type) { | |
4114 | case ixgbe_mac_X540: | |
4115 | dv_id = IXGBE_DV_X540(link, tc); | |
4116 | break; | |
4117 | default: | |
4118 | dv_id = IXGBE_DV(link, tc); | |
4119 | break; | |
4120 | } | |
4121 | ||
4122 | /* Loopback switch introduces additional latency */ | |
4123 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
4124 | dv_id += IXGBE_B2BT(tc); | |
4125 | ||
4126 | /* Delay value is calculated in bit times convert to KB */ | |
4127 | kb = IXGBE_BT2KB(dv_id); | |
4128 | rx_pba = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(pb)) >> 10; | |
4129 | ||
4130 | marker = rx_pba - kb; | |
4131 | ||
4132 | /* It is possible that the packet buffer is not large enough | |
4133 | * to provide required headroom. In this case throw an error | |
4134 | * to user and a do the best we can. | |
4135 | */ | |
4136 | if (marker < 0) { | |
4137 | e_warn(drv, "Packet Buffer(%i) can not provide enough" | |
4138 | "headroom to support flow control." | |
4139 | "Decrease MTU or number of traffic classes\n", pb); | |
4140 | marker = tc + 1; | |
4141 | } | |
4142 | ||
4143 | return marker; | |
4144 | } | |
4145 | ||
49ce9c2c | 4146 | /** |
9da712d2 JF |
4147 | * ixgbe_lpbthresh - calculate low water mark for for flow control |
4148 | * | |
4149 | * @adapter: board private structure to calculate for | |
49ce9c2c | 4150 | * @pb: packet buffer to calculate |
9da712d2 | 4151 | */ |
e5776620 | 4152 | static int ixgbe_lpbthresh(struct ixgbe_adapter *adapter, int pb) |
9da712d2 JF |
4153 | { |
4154 | struct ixgbe_hw *hw = &adapter->hw; | |
4155 | struct net_device *dev = adapter->netdev; | |
4156 | int tc; | |
4157 | u32 dv_id; | |
4158 | ||
4159 | /* Calculate max LAN frame size */ | |
4160 | tc = dev->mtu + ETH_HLEN + ETH_FCS_LEN; | |
4161 | ||
e5776620 JK |
4162 | #ifdef IXGBE_FCOE |
4163 | /* FCoE traffic class uses FCOE jumbo frames */ | |
4164 | if ((dev->features & NETIF_F_FCOE_MTU) && | |
4165 | (tc < IXGBE_FCOE_JUMBO_FRAME_SIZE) && | |
4166 | (pb == netdev_get_prio_tc_map(dev, adapter->fcoe.up))) | |
4167 | tc = IXGBE_FCOE_JUMBO_FRAME_SIZE; | |
4168 | #endif | |
4169 | ||
9da712d2 JF |
4170 | /* Calculate delay value for device */ |
4171 | switch (hw->mac.type) { | |
4172 | case ixgbe_mac_X540: | |
4173 | dv_id = IXGBE_LOW_DV_X540(tc); | |
4174 | break; | |
4175 | default: | |
4176 | dv_id = IXGBE_LOW_DV(tc); | |
4177 | break; | |
4178 | } | |
4179 | ||
4180 | /* Delay value is calculated in bit times convert to KB */ | |
4181 | return IXGBE_BT2KB(dv_id); | |
4182 | } | |
4183 | ||
4184 | /* | |
4185 | * ixgbe_pbthresh_setup - calculate and setup high low water marks | |
4186 | */ | |
4187 | static void ixgbe_pbthresh_setup(struct ixgbe_adapter *adapter) | |
4188 | { | |
4189 | struct ixgbe_hw *hw = &adapter->hw; | |
4190 | int num_tc = netdev_get_num_tc(adapter->netdev); | |
4191 | int i; | |
4192 | ||
4193 | if (!num_tc) | |
4194 | num_tc = 1; | |
4195 | ||
9da712d2 JF |
4196 | for (i = 0; i < num_tc; i++) { |
4197 | hw->fc.high_water[i] = ixgbe_hpbthresh(adapter, i); | |
e5776620 | 4198 | hw->fc.low_water[i] = ixgbe_lpbthresh(adapter, i); |
9da712d2 JF |
4199 | |
4200 | /* Low water marks must not be larger than high water marks */ | |
e5776620 JK |
4201 | if (hw->fc.low_water[i] > hw->fc.high_water[i]) |
4202 | hw->fc.low_water[i] = 0; | |
9da712d2 | 4203 | } |
e5776620 JK |
4204 | |
4205 | for (; i < MAX_TRAFFIC_CLASS; i++) | |
4206 | hw->fc.high_water[i] = 0; | |
9da712d2 JF |
4207 | } |
4208 | ||
80605c65 JF |
4209 | static void ixgbe_configure_pb(struct ixgbe_adapter *adapter) |
4210 | { | |
80605c65 | 4211 | struct ixgbe_hw *hw = &adapter->hw; |
f7e1027f AD |
4212 | int hdrm; |
4213 | u8 tc = netdev_get_num_tc(adapter->netdev); | |
80605c65 JF |
4214 | |
4215 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE || | |
4216 | adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) | |
f7e1027f AD |
4217 | hdrm = 32 << adapter->fdir_pballoc; |
4218 | else | |
4219 | hdrm = 0; | |
80605c65 | 4220 | |
f7e1027f | 4221 | hw->mac.ops.set_rxpba(hw, tc, hdrm, PBA_STRATEGY_EQUAL); |
9da712d2 | 4222 | ixgbe_pbthresh_setup(adapter); |
80605c65 JF |
4223 | } |
4224 | ||
e4911d57 AD |
4225 | static void ixgbe_fdir_filter_restore(struct ixgbe_adapter *adapter) |
4226 | { | |
4227 | struct ixgbe_hw *hw = &adapter->hw; | |
b67bfe0d | 4228 | struct hlist_node *node2; |
e4911d57 AD |
4229 | struct ixgbe_fdir_filter *filter; |
4230 | ||
4231 | spin_lock(&adapter->fdir_perfect_lock); | |
4232 | ||
4233 | if (!hlist_empty(&adapter->fdir_filter_list)) | |
4234 | ixgbe_fdir_set_input_mask_82599(hw, &adapter->fdir_mask); | |
4235 | ||
b67bfe0d | 4236 | hlist_for_each_entry_safe(filter, node2, |
e4911d57 AD |
4237 | &adapter->fdir_filter_list, fdir_node) { |
4238 | ixgbe_fdir_write_perfect_filter_82599(hw, | |
1f4d5183 AD |
4239 | &filter->filter, |
4240 | filter->sw_idx, | |
4241 | (filter->action == IXGBE_FDIR_DROP_QUEUE) ? | |
4242 | IXGBE_FDIR_DROP_QUEUE : | |
4243 | adapter->rx_ring[filter->action]->reg_idx); | |
e4911d57 AD |
4244 | } |
4245 | ||
4246 | spin_unlock(&adapter->fdir_perfect_lock); | |
4247 | } | |
4248 | ||
2a47fa45 JF |
4249 | static void ixgbe_macvlan_set_rx_mode(struct net_device *dev, unsigned int pool, |
4250 | struct ixgbe_adapter *adapter) | |
4251 | { | |
4252 | struct ixgbe_hw *hw = &adapter->hw; | |
4253 | u32 vmolr; | |
4254 | ||
4255 | /* No unicast promiscuous support for VMDQ devices. */ | |
4256 | vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(pool)); | |
4257 | vmolr |= (IXGBE_VMOLR_ROMPE | IXGBE_VMOLR_BAM | IXGBE_VMOLR_AUPE); | |
4258 | ||
4259 | /* clear the affected bit */ | |
4260 | vmolr &= ~IXGBE_VMOLR_MPE; | |
4261 | ||
4262 | if (dev->flags & IFF_ALLMULTI) { | |
4263 | vmolr |= IXGBE_VMOLR_MPE; | |
4264 | } else { | |
4265 | vmolr |= IXGBE_VMOLR_ROMPE; | |
4266 | hw->mac.ops.update_mc_addr_list(hw, dev); | |
4267 | } | |
5d7daa35 | 4268 | ixgbe_write_uc_addr_list(adapter->netdev, pool); |
2a47fa45 JF |
4269 | IXGBE_WRITE_REG(hw, IXGBE_VMOLR(pool), vmolr); |
4270 | } | |
4271 | ||
2a47fa45 JF |
4272 | static void ixgbe_fwd_psrtype(struct ixgbe_fwd_adapter *vadapter) |
4273 | { | |
4274 | struct ixgbe_adapter *adapter = vadapter->real_adapter; | |
219354d4 | 4275 | int rss_i = adapter->num_rx_queues_per_pool; |
2a47fa45 JF |
4276 | struct ixgbe_hw *hw = &adapter->hw; |
4277 | u16 pool = vadapter->pool; | |
4278 | u32 psrtype = IXGBE_PSRTYPE_TCPHDR | | |
4279 | IXGBE_PSRTYPE_UDPHDR | | |
4280 | IXGBE_PSRTYPE_IPV4HDR | | |
4281 | IXGBE_PSRTYPE_L2HDR | | |
4282 | IXGBE_PSRTYPE_IPV6HDR; | |
4283 | ||
4284 | if (hw->mac.type == ixgbe_mac_82598EB) | |
4285 | return; | |
4286 | ||
4287 | if (rss_i > 3) | |
4288 | psrtype |= 2 << 29; | |
4289 | else if (rss_i > 1) | |
4290 | psrtype |= 1 << 29; | |
4291 | ||
4292 | IXGBE_WRITE_REG(hw, IXGBE_PSRTYPE(VMDQ_P(pool)), psrtype); | |
4293 | } | |
4294 | ||
4295 | /** | |
4296 | * ixgbe_clean_rx_ring - Free Rx Buffers per Queue | |
4297 | * @rx_ring: ring to free buffers from | |
4298 | **/ | |
4299 | static void ixgbe_clean_rx_ring(struct ixgbe_ring *rx_ring) | |
4300 | { | |
4301 | struct device *dev = rx_ring->dev; | |
4302 | unsigned long size; | |
4303 | u16 i; | |
4304 | ||
4305 | /* ring already cleared, nothing to do */ | |
4306 | if (!rx_ring->rx_buffer_info) | |
4307 | return; | |
4308 | ||
4309 | /* Free all the Rx ring sk_buffs */ | |
4310 | for (i = 0; i < rx_ring->count; i++) { | |
4311 | struct ixgbe_rx_buffer *rx_buffer; | |
4312 | ||
4313 | rx_buffer = &rx_ring->rx_buffer_info[i]; | |
4314 | if (rx_buffer->skb) { | |
4315 | struct sk_buff *skb = rx_buffer->skb; | |
4316 | if (IXGBE_CB(skb)->page_released) { | |
4317 | dma_unmap_page(dev, | |
4318 | IXGBE_CB(skb)->dma, | |
4319 | ixgbe_rx_bufsz(rx_ring), | |
4320 | DMA_FROM_DEVICE); | |
4321 | IXGBE_CB(skb)->page_released = false; | |
4322 | } | |
4323 | dev_kfree_skb(skb); | |
4d2fcfbc | 4324 | rx_buffer->skb = NULL; |
2a47fa45 | 4325 | } |
2a47fa45 JF |
4326 | if (rx_buffer->dma) |
4327 | dma_unmap_page(dev, rx_buffer->dma, | |
4328 | ixgbe_rx_pg_size(rx_ring), | |
4329 | DMA_FROM_DEVICE); | |
4330 | rx_buffer->dma = 0; | |
4331 | if (rx_buffer->page) | |
4332 | __free_pages(rx_buffer->page, | |
4333 | ixgbe_rx_pg_order(rx_ring)); | |
4334 | rx_buffer->page = NULL; | |
4335 | } | |
4336 | ||
4337 | size = sizeof(struct ixgbe_rx_buffer) * rx_ring->count; | |
4338 | memset(rx_ring->rx_buffer_info, 0, size); | |
4339 | ||
4340 | /* Zero out the descriptor ring */ | |
4341 | memset(rx_ring->desc, 0, rx_ring->size); | |
4342 | ||
4343 | rx_ring->next_to_alloc = 0; | |
4344 | rx_ring->next_to_clean = 0; | |
4345 | rx_ring->next_to_use = 0; | |
4346 | } | |
4347 | ||
4348 | static void ixgbe_disable_fwd_ring(struct ixgbe_fwd_adapter *vadapter, | |
4349 | struct ixgbe_ring *rx_ring) | |
4350 | { | |
4351 | struct ixgbe_adapter *adapter = vadapter->real_adapter; | |
4352 | int index = rx_ring->queue_index + vadapter->rx_base_queue; | |
4353 | ||
4354 | /* shutdown specific queue receive and wait for dma to settle */ | |
4355 | ixgbe_disable_rx_queue(adapter, rx_ring); | |
4356 | usleep_range(10000, 20000); | |
4357 | ixgbe_irq_disable_queues(adapter, ((u64)1 << index)); | |
4358 | ixgbe_clean_rx_ring(rx_ring); | |
4359 | rx_ring->l2_accel_priv = NULL; | |
4360 | } | |
4361 | ||
ae72c8d0 JF |
4362 | static int ixgbe_fwd_ring_down(struct net_device *vdev, |
4363 | struct ixgbe_fwd_adapter *accel) | |
2a47fa45 JF |
4364 | { |
4365 | struct ixgbe_adapter *adapter = accel->real_adapter; | |
4366 | unsigned int rxbase = accel->rx_base_queue; | |
4367 | unsigned int txbase = accel->tx_base_queue; | |
4368 | int i; | |
4369 | ||
4370 | netif_tx_stop_all_queues(vdev); | |
4371 | ||
4372 | for (i = 0; i < adapter->num_rx_queues_per_pool; i++) { | |
4373 | ixgbe_disable_fwd_ring(accel, adapter->rx_ring[rxbase + i]); | |
4374 | adapter->rx_ring[rxbase + i]->netdev = adapter->netdev; | |
4375 | } | |
4376 | ||
4377 | for (i = 0; i < adapter->num_rx_queues_per_pool; i++) { | |
4378 | adapter->tx_ring[txbase + i]->l2_accel_priv = NULL; | |
4379 | adapter->tx_ring[txbase + i]->netdev = adapter->netdev; | |
4380 | } | |
4381 | ||
4382 | ||
4383 | return 0; | |
4384 | } | |
4385 | ||
4386 | static int ixgbe_fwd_ring_up(struct net_device *vdev, | |
4387 | struct ixgbe_fwd_adapter *accel) | |
4388 | { | |
4389 | struct ixgbe_adapter *adapter = accel->real_adapter; | |
4390 | unsigned int rxbase, txbase, queues; | |
4391 | int i, baseq, err = 0; | |
4392 | ||
4393 | if (!test_bit(accel->pool, &adapter->fwd_bitmask)) | |
4394 | return 0; | |
4395 | ||
4396 | baseq = accel->pool * adapter->num_rx_queues_per_pool; | |
4397 | netdev_dbg(vdev, "pool %i:%i queues %i:%i VSI bitmask %lx\n", | |
4398 | accel->pool, adapter->num_rx_pools, | |
4399 | baseq, baseq + adapter->num_rx_queues_per_pool, | |
4400 | adapter->fwd_bitmask); | |
4401 | ||
4402 | accel->netdev = vdev; | |
4403 | accel->rx_base_queue = rxbase = baseq; | |
4404 | accel->tx_base_queue = txbase = baseq; | |
4405 | ||
4406 | for (i = 0; i < adapter->num_rx_queues_per_pool; i++) | |
4407 | ixgbe_disable_fwd_ring(accel, adapter->rx_ring[rxbase + i]); | |
4408 | ||
4409 | for (i = 0; i < adapter->num_rx_queues_per_pool; i++) { | |
4410 | adapter->rx_ring[rxbase + i]->netdev = vdev; | |
4411 | adapter->rx_ring[rxbase + i]->l2_accel_priv = accel; | |
4412 | ixgbe_configure_rx_ring(adapter, adapter->rx_ring[rxbase + i]); | |
4413 | } | |
4414 | ||
4415 | for (i = 0; i < adapter->num_rx_queues_per_pool; i++) { | |
4416 | adapter->tx_ring[txbase + i]->netdev = vdev; | |
4417 | adapter->tx_ring[txbase + i]->l2_accel_priv = accel; | |
4418 | } | |
4419 | ||
4420 | queues = min_t(unsigned int, | |
4421 | adapter->num_rx_queues_per_pool, vdev->num_tx_queues); | |
4422 | err = netif_set_real_num_tx_queues(vdev, queues); | |
4423 | if (err) | |
4424 | goto fwd_queue_err; | |
4425 | ||
2a47fa45 JF |
4426 | err = netif_set_real_num_rx_queues(vdev, queues); |
4427 | if (err) | |
4428 | goto fwd_queue_err; | |
4429 | ||
4430 | if (is_valid_ether_addr(vdev->dev_addr)) | |
4431 | ixgbe_add_mac_filter(adapter, vdev->dev_addr, accel->pool); | |
4432 | ||
4433 | ixgbe_fwd_psrtype(accel); | |
4434 | ixgbe_macvlan_set_rx_mode(vdev, accel->pool, adapter); | |
4435 | return err; | |
4436 | fwd_queue_err: | |
4437 | ixgbe_fwd_ring_down(vdev, accel); | |
4438 | return err; | |
4439 | } | |
4440 | ||
4441 | static void ixgbe_configure_dfwd(struct ixgbe_adapter *adapter) | |
4442 | { | |
4443 | struct net_device *upper; | |
4444 | struct list_head *iter; | |
4445 | int err; | |
4446 | ||
4447 | netdev_for_each_all_upper_dev_rcu(adapter->netdev, upper, iter) { | |
4448 | if (netif_is_macvlan(upper)) { | |
4449 | struct macvlan_dev *dfwd = netdev_priv(upper); | |
4450 | struct ixgbe_fwd_adapter *vadapter = dfwd->fwd_priv; | |
4451 | ||
4452 | if (dfwd->fwd_priv) { | |
4453 | err = ixgbe_fwd_ring_up(upper, vadapter); | |
4454 | if (err) | |
4455 | continue; | |
4456 | } | |
4457 | } | |
4458 | } | |
4459 | } | |
4460 | ||
9a799d71 AK |
4461 | static void ixgbe_configure(struct ixgbe_adapter *adapter) |
4462 | { | |
d2f5e7f3 AS |
4463 | struct ixgbe_hw *hw = &adapter->hw; |
4464 | ||
80605c65 | 4465 | ixgbe_configure_pb(adapter); |
7a6b6f51 | 4466 | #ifdef CONFIG_IXGBE_DCB |
67ebd791 | 4467 | ixgbe_configure_dcb(adapter); |
2f90b865 | 4468 | #endif |
b35d4d42 AD |
4469 | /* |
4470 | * We must restore virtualization before VLANs or else | |
4471 | * the VLVF registers will not be populated | |
4472 | */ | |
4473 | ixgbe_configure_virtualization(adapter); | |
9a799d71 | 4474 | |
4c1d7b4b | 4475 | ixgbe_set_rx_mode(adapter->netdev); |
f62bbb5e JG |
4476 | ixgbe_restore_vlan(adapter); |
4477 | ||
d2f5e7f3 AS |
4478 | switch (hw->mac.type) { |
4479 | case ixgbe_mac_82599EB: | |
4480 | case ixgbe_mac_X540: | |
4481 | hw->mac.ops.disable_rx_buff(hw); | |
4482 | break; | |
4483 | default: | |
4484 | break; | |
4485 | } | |
4486 | ||
c4cf55e5 | 4487 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { |
4c1d7b4b AD |
4488 | ixgbe_init_fdir_signature_82599(&adapter->hw, |
4489 | adapter->fdir_pballoc); | |
e4911d57 AD |
4490 | } else if (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) { |
4491 | ixgbe_init_fdir_perfect_82599(&adapter->hw, | |
4492 | adapter->fdir_pballoc); | |
4493 | ixgbe_fdir_filter_restore(adapter); | |
c4cf55e5 | 4494 | } |
4c1d7b4b | 4495 | |
d2f5e7f3 AS |
4496 | switch (hw->mac.type) { |
4497 | case ixgbe_mac_82599EB: | |
4498 | case ixgbe_mac_X540: | |
4499 | hw->mac.ops.enable_rx_buff(hw); | |
4500 | break; | |
4501 | default: | |
4502 | break; | |
4503 | } | |
4504 | ||
7c8ae65a AD |
4505 | #ifdef IXGBE_FCOE |
4506 | /* configure FCoE L2 filters, redirection table, and Rx control */ | |
4507 | ixgbe_configure_fcoe(adapter); | |
4508 | ||
4509 | #endif /* IXGBE_FCOE */ | |
9a799d71 AK |
4510 | ixgbe_configure_tx(adapter); |
4511 | ixgbe_configure_rx(adapter); | |
2a47fa45 | 4512 | ixgbe_configure_dfwd(adapter); |
9a799d71 AK |
4513 | } |
4514 | ||
e8e26350 PW |
4515 | static inline bool ixgbe_is_sfp(struct ixgbe_hw *hw) |
4516 | { | |
4517 | switch (hw->phy.type) { | |
4518 | case ixgbe_phy_sfp_avago: | |
4519 | case ixgbe_phy_sfp_ftl: | |
4520 | case ixgbe_phy_sfp_intel: | |
4521 | case ixgbe_phy_sfp_unknown: | |
ea0a04df DS |
4522 | case ixgbe_phy_sfp_passive_tyco: |
4523 | case ixgbe_phy_sfp_passive_unknown: | |
4524 | case ixgbe_phy_sfp_active_unknown: | |
4525 | case ixgbe_phy_sfp_ftl_active: | |
987e1d56 ET |
4526 | case ixgbe_phy_qsfp_passive_unknown: |
4527 | case ixgbe_phy_qsfp_active_unknown: | |
4528 | case ixgbe_phy_qsfp_intel: | |
4529 | case ixgbe_phy_qsfp_unknown: | |
d9cd46cd ET |
4530 | /* ixgbe_phy_none is set when no SFP module is present */ |
4531 | case ixgbe_phy_none: | |
e8e26350 | 4532 | return true; |
8917b447 AD |
4533 | case ixgbe_phy_nl: |
4534 | if (hw->mac.type == ixgbe_mac_82598EB) | |
4535 | return true; | |
e8e26350 PW |
4536 | default: |
4537 | return false; | |
4538 | } | |
4539 | } | |
4540 | ||
0ecc061d | 4541 | /** |
e8e26350 PW |
4542 | * ixgbe_sfp_link_config - set up SFP+ link |
4543 | * @adapter: pointer to private adapter struct | |
4544 | **/ | |
4545 | static void ixgbe_sfp_link_config(struct ixgbe_adapter *adapter) | |
4546 | { | |
7086400d | 4547 | /* |
52f33af8 | 4548 | * We are assuming the worst case scenario here, and that |
7086400d AD |
4549 | * is that an SFP was inserted/removed after the reset |
4550 | * but before SFP detection was enabled. As such the best | |
4551 | * solution is to just start searching as soon as we start | |
4552 | */ | |
4553 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) | |
4554 | adapter->flags2 |= IXGBE_FLAG2_SEARCH_FOR_SFP; | |
e8e26350 | 4555 | |
7086400d | 4556 | adapter->flags2 |= IXGBE_FLAG2_SFP_NEEDS_RESET; |
e8e26350 PW |
4557 | } |
4558 | ||
4559 | /** | |
4560 | * ixgbe_non_sfp_link_config - set up non-SFP+ link | |
0ecc061d PWJ |
4561 | * @hw: pointer to private hardware struct |
4562 | * | |
4563 | * Returns 0 on success, negative on failure | |
4564 | **/ | |
e8e26350 | 4565 | static int ixgbe_non_sfp_link_config(struct ixgbe_hw *hw) |
0ecc061d | 4566 | { |
3d292265 JH |
4567 | u32 speed; |
4568 | bool autoneg, link_up = false; | |
0ecc061d PWJ |
4569 | u32 ret = IXGBE_ERR_LINK_SETUP; |
4570 | ||
4571 | if (hw->mac.ops.check_link) | |
3d292265 | 4572 | ret = hw->mac.ops.check_link(hw, &speed, &link_up, false); |
0ecc061d PWJ |
4573 | |
4574 | if (ret) | |
e90dd264 | 4575 | return ret; |
0ecc061d | 4576 | |
3d292265 JH |
4577 | speed = hw->phy.autoneg_advertised; |
4578 | if ((!speed) && (hw->mac.ops.get_link_capabilities)) | |
4579 | ret = hw->mac.ops.get_link_capabilities(hw, &speed, | |
4580 | &autoneg); | |
0ecc061d | 4581 | if (ret) |
e90dd264 | 4582 | return ret; |
0ecc061d | 4583 | |
8620a103 | 4584 | if (hw->mac.ops.setup_link) |
fd0326f2 | 4585 | ret = hw->mac.ops.setup_link(hw, speed, link_up); |
e90dd264 | 4586 | |
0ecc061d PWJ |
4587 | return ret; |
4588 | } | |
4589 | ||
a34bcfff | 4590 | static void ixgbe_setup_gpie(struct ixgbe_adapter *adapter) |
9a799d71 | 4591 | { |
9a799d71 | 4592 | struct ixgbe_hw *hw = &adapter->hw; |
a34bcfff | 4593 | u32 gpie = 0; |
9a799d71 | 4594 | |
9b471446 | 4595 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
a34bcfff AD |
4596 | gpie = IXGBE_GPIE_MSIX_MODE | IXGBE_GPIE_PBA_SUPPORT | |
4597 | IXGBE_GPIE_OCD; | |
4598 | gpie |= IXGBE_GPIE_EIAME; | |
9b471446 JB |
4599 | /* |
4600 | * use EIAM to auto-mask when MSI-X interrupt is asserted | |
4601 | * this saves a register write for every interrupt | |
4602 | */ | |
4603 | switch (hw->mac.type) { | |
4604 | case ixgbe_mac_82598EB: | |
4605 | IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE); | |
4606 | break; | |
9b471446 | 4607 | case ixgbe_mac_82599EB: |
b93a2226 DS |
4608 | case ixgbe_mac_X540: |
4609 | default: | |
9b471446 JB |
4610 | IXGBE_WRITE_REG(hw, IXGBE_EIAM_EX(0), 0xFFFFFFFF); |
4611 | IXGBE_WRITE_REG(hw, IXGBE_EIAM_EX(1), 0xFFFFFFFF); | |
4612 | break; | |
4613 | } | |
4614 | } else { | |
021230d4 AV |
4615 | /* legacy interrupts, use EIAM to auto-mask when reading EICR, |
4616 | * specifically only auto mask tx and rx interrupts */ | |
4617 | IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE); | |
4618 | } | |
9a799d71 | 4619 | |
a34bcfff AD |
4620 | /* XXX: to interrupt immediately for EICS writes, enable this */ |
4621 | /* gpie |= IXGBE_GPIE_EIMEN; */ | |
4622 | ||
4623 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { | |
4624 | gpie &= ~IXGBE_GPIE_VTMODE_MASK; | |
73079ea0 AD |
4625 | |
4626 | switch (adapter->ring_feature[RING_F_VMDQ].mask) { | |
4627 | case IXGBE_82599_VMDQ_8Q_MASK: | |
4628 | gpie |= IXGBE_GPIE_VTMODE_16; | |
4629 | break; | |
4630 | case IXGBE_82599_VMDQ_4Q_MASK: | |
4631 | gpie |= IXGBE_GPIE_VTMODE_32; | |
4632 | break; | |
4633 | default: | |
4634 | gpie |= IXGBE_GPIE_VTMODE_64; | |
4635 | break; | |
4636 | } | |
119fc60a MC |
4637 | } |
4638 | ||
5fdd31f9 | 4639 | /* Enable Thermal over heat sensor interrupt */ |
f3df98ec DS |
4640 | if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) { |
4641 | switch (adapter->hw.mac.type) { | |
4642 | case ixgbe_mac_82599EB: | |
4643 | gpie |= IXGBE_SDP0_GPIEN; | |
4644 | break; | |
4645 | case ixgbe_mac_X540: | |
4646 | gpie |= IXGBE_EIMS_TS; | |
4647 | break; | |
4648 | default: | |
4649 | break; | |
4650 | } | |
4651 | } | |
5fdd31f9 | 4652 | |
a34bcfff AD |
4653 | /* Enable fan failure interrupt */ |
4654 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) | |
0befdb3e | 4655 | gpie |= IXGBE_SDP1_GPIEN; |
0befdb3e | 4656 | |
2698b208 | 4657 | if (hw->mac.type == ixgbe_mac_82599EB) { |
e8e26350 PW |
4658 | gpie |= IXGBE_SDP1_GPIEN; |
4659 | gpie |= IXGBE_SDP2_GPIEN; | |
2698b208 | 4660 | } |
a34bcfff AD |
4661 | |
4662 | IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); | |
4663 | } | |
4664 | ||
c7ccde0f | 4665 | static void ixgbe_up_complete(struct ixgbe_adapter *adapter) |
a34bcfff AD |
4666 | { |
4667 | struct ixgbe_hw *hw = &adapter->hw; | |
a34bcfff | 4668 | int err; |
a34bcfff AD |
4669 | u32 ctrl_ext; |
4670 | ||
4671 | ixgbe_get_hw_control(adapter); | |
4672 | ixgbe_setup_gpie(adapter); | |
e8e26350 | 4673 | |
9a799d71 AK |
4674 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) |
4675 | ixgbe_configure_msix(adapter); | |
4676 | else | |
4677 | ixgbe_configure_msi_and_legacy(adapter); | |
4678 | ||
ec74a471 ET |
4679 | /* enable the optics for 82599 SFP+ fiber */ |
4680 | if (hw->mac.ops.enable_tx_laser) | |
61fac744 PW |
4681 | hw->mac.ops.enable_tx_laser(hw); |
4682 | ||
4e857c58 | 4683 | smp_mb__before_atomic(); |
9a799d71 | 4684 | clear_bit(__IXGBE_DOWN, &adapter->state); |
021230d4 AV |
4685 | ixgbe_napi_enable_all(adapter); |
4686 | ||
73c4b7cd AD |
4687 | if (ixgbe_is_sfp(hw)) { |
4688 | ixgbe_sfp_link_config(adapter); | |
4689 | } else { | |
4690 | err = ixgbe_non_sfp_link_config(hw); | |
4691 | if (err) | |
4692 | e_err(probe, "link_config FAILED %d\n", err); | |
4693 | } | |
4694 | ||
021230d4 AV |
4695 | /* clear any pending interrupts, may auto mask */ |
4696 | IXGBE_READ_REG(hw, IXGBE_EICR); | |
6af3b9eb | 4697 | ixgbe_irq_enable(adapter, true, true); |
9a799d71 | 4698 | |
bf069c97 DS |
4699 | /* |
4700 | * If this adapter has a fan, check to see if we had a failure | |
4701 | * before we enabled the interrupt. | |
4702 | */ | |
4703 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) { | |
4704 | u32 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); | |
4705 | if (esdp & IXGBE_ESDP_SDP1) | |
396e799c | 4706 | e_crit(drv, "Fan has stopped, replace the adapter\n"); |
bf069c97 DS |
4707 | } |
4708 | ||
9a799d71 AK |
4709 | /* bring the link up in the watchdog, this could race with our first |
4710 | * link up interrupt but shouldn't be a problem */ | |
cf8280ee JB |
4711 | adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; |
4712 | adapter->link_check_timeout = jiffies; | |
7086400d | 4713 | mod_timer(&adapter->service_timer, jiffies); |
c9205697 GR |
4714 | |
4715 | /* Set PF Reset Done bit so PF/VF Mail Ops can work */ | |
4716 | ctrl_ext = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT); | |
4717 | ctrl_ext |= IXGBE_CTRL_EXT_PFRSTD; | |
4718 | IXGBE_WRITE_REG(hw, IXGBE_CTRL_EXT, ctrl_ext); | |
9a799d71 AK |
4719 | } |
4720 | ||
d4f80882 AV |
4721 | void ixgbe_reinit_locked(struct ixgbe_adapter *adapter) |
4722 | { | |
4723 | WARN_ON(in_interrupt()); | |
7086400d AD |
4724 | /* put off any impending NetWatchDogTimeout */ |
4725 | adapter->netdev->trans_start = jiffies; | |
4726 | ||
d4f80882 | 4727 | while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state)) |
032b4325 | 4728 | usleep_range(1000, 2000); |
d4f80882 | 4729 | ixgbe_down(adapter); |
5809a1ae GR |
4730 | /* |
4731 | * If SR-IOV enabled then wait a bit before bringing the adapter | |
4732 | * back up to give the VFs time to respond to the reset. The | |
4733 | * two second wait is based upon the watchdog timer cycle in | |
4734 | * the VF driver. | |
4735 | */ | |
4736 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
4737 | msleep(2000); | |
d4f80882 AV |
4738 | ixgbe_up(adapter); |
4739 | clear_bit(__IXGBE_RESETTING, &adapter->state); | |
4740 | } | |
4741 | ||
c7ccde0f | 4742 | void ixgbe_up(struct ixgbe_adapter *adapter) |
9a799d71 AK |
4743 | { |
4744 | /* hardware has been reset, we need to reload some things */ | |
4745 | ixgbe_configure(adapter); | |
4746 | ||
c7ccde0f | 4747 | ixgbe_up_complete(adapter); |
9a799d71 AK |
4748 | } |
4749 | ||
4750 | void ixgbe_reset(struct ixgbe_adapter *adapter) | |
4751 | { | |
c44ade9e | 4752 | struct ixgbe_hw *hw = &adapter->hw; |
5d7daa35 | 4753 | struct net_device *netdev = adapter->netdev; |
8ca783ab | 4754 | int err; |
5d7daa35 | 4755 | u8 old_addr[ETH_ALEN]; |
8ca783ab | 4756 | |
b0483c8f MR |
4757 | if (ixgbe_removed(hw->hw_addr)) |
4758 | return; | |
7086400d AD |
4759 | /* lock SFP init bit to prevent race conditions with the watchdog */ |
4760 | while (test_and_set_bit(__IXGBE_IN_SFP_INIT, &adapter->state)) | |
4761 | usleep_range(1000, 2000); | |
4762 | ||
4763 | /* clear all SFP and link config related flags while holding SFP_INIT */ | |
4764 | adapter->flags2 &= ~(IXGBE_FLAG2_SEARCH_FOR_SFP | | |
4765 | IXGBE_FLAG2_SFP_NEEDS_RESET); | |
4766 | adapter->flags &= ~IXGBE_FLAG_NEED_LINK_CONFIG; | |
4767 | ||
8ca783ab | 4768 | err = hw->mac.ops.init_hw(hw); |
da4dd0f7 PWJ |
4769 | switch (err) { |
4770 | case 0: | |
4771 | case IXGBE_ERR_SFP_NOT_PRESENT: | |
7086400d | 4772 | case IXGBE_ERR_SFP_NOT_SUPPORTED: |
da4dd0f7 PWJ |
4773 | break; |
4774 | case IXGBE_ERR_MASTER_REQUESTS_PENDING: | |
849c4542 | 4775 | e_dev_err("master disable timed out\n"); |
da4dd0f7 | 4776 | break; |
794caeb2 PWJ |
4777 | case IXGBE_ERR_EEPROM_VERSION: |
4778 | /* We are running on a pre-production device, log a warning */ | |
849c4542 | 4779 | e_dev_warn("This device is a pre-production adapter/LOM. " |
52f33af8 | 4780 | "Please be aware there may be issues associated with " |
849c4542 ET |
4781 | "your hardware. If you are experiencing problems " |
4782 | "please contact your Intel or hardware " | |
4783 | "representative who provided you with this " | |
4784 | "hardware.\n"); | |
794caeb2 | 4785 | break; |
da4dd0f7 | 4786 | default: |
849c4542 | 4787 | e_dev_err("Hardware Error: %d\n", err); |
da4dd0f7 | 4788 | } |
9a799d71 | 4789 | |
7086400d | 4790 | clear_bit(__IXGBE_IN_SFP_INIT, &adapter->state); |
5d7daa35 JK |
4791 | /* do not flush user set addresses */ |
4792 | memcpy(old_addr, &adapter->mac_table[0].addr, netdev->addr_len); | |
4793 | ixgbe_flush_sw_mac_table(adapter); | |
4794 | ixgbe_mac_set_default_filter(adapter, old_addr); | |
7fa7c9dc AD |
4795 | |
4796 | /* update SAN MAC vmdq pool selection */ | |
4797 | if (hw->mac.san_mac_rar_index) | |
4798 | hw->mac.ops.set_vmdq_san_mac(hw, VMDQ_P(0)); | |
1a71ab24 | 4799 | |
8fecf67c | 4800 | if (test_bit(__IXGBE_PTP_RUNNING, &adapter->state)) |
1a71ab24 | 4801 | ixgbe_ptp_reset(adapter); |
9a799d71 AK |
4802 | } |
4803 | ||
9a799d71 AK |
4804 | /** |
4805 | * ixgbe_clean_tx_ring - Free Tx Buffers | |
9a799d71 AK |
4806 | * @tx_ring: ring to be cleaned |
4807 | **/ | |
b6ec895e | 4808 | static void ixgbe_clean_tx_ring(struct ixgbe_ring *tx_ring) |
9a799d71 AK |
4809 | { |
4810 | struct ixgbe_tx_buffer *tx_buffer_info; | |
4811 | unsigned long size; | |
b6ec895e | 4812 | u16 i; |
9a799d71 | 4813 | |
84418e3b AD |
4814 | /* ring already cleared, nothing to do */ |
4815 | if (!tx_ring->tx_buffer_info) | |
4816 | return; | |
9a799d71 | 4817 | |
84418e3b | 4818 | /* Free all the Tx ring sk_buffs */ |
9a799d71 AK |
4819 | for (i = 0; i < tx_ring->count; i++) { |
4820 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; | |
b6ec895e | 4821 | ixgbe_unmap_and_free_tx_resource(tx_ring, tx_buffer_info); |
9a799d71 AK |
4822 | } |
4823 | ||
dad8a3b3 JF |
4824 | netdev_tx_reset_queue(txring_txq(tx_ring)); |
4825 | ||
9a799d71 AK |
4826 | size = sizeof(struct ixgbe_tx_buffer) * tx_ring->count; |
4827 | memset(tx_ring->tx_buffer_info, 0, size); | |
4828 | ||
4829 | /* Zero out the descriptor ring */ | |
4830 | memset(tx_ring->desc, 0, tx_ring->size); | |
4831 | ||
4832 | tx_ring->next_to_use = 0; | |
4833 | tx_ring->next_to_clean = 0; | |
9a799d71 AK |
4834 | } |
4835 | ||
4836 | /** | |
021230d4 | 4837 | * ixgbe_clean_all_rx_rings - Free Rx Buffers for all queues |
9a799d71 AK |
4838 | * @adapter: board private structure |
4839 | **/ | |
021230d4 | 4840 | static void ixgbe_clean_all_rx_rings(struct ixgbe_adapter *adapter) |
9a799d71 AK |
4841 | { |
4842 | int i; | |
4843 | ||
021230d4 | 4844 | for (i = 0; i < adapter->num_rx_queues; i++) |
b6ec895e | 4845 | ixgbe_clean_rx_ring(adapter->rx_ring[i]); |
9a799d71 AK |
4846 | } |
4847 | ||
4848 | /** | |
021230d4 | 4849 | * ixgbe_clean_all_tx_rings - Free Tx Buffers for all queues |
9a799d71 AK |
4850 | * @adapter: board private structure |
4851 | **/ | |
021230d4 | 4852 | static void ixgbe_clean_all_tx_rings(struct ixgbe_adapter *adapter) |
9a799d71 AK |
4853 | { |
4854 | int i; | |
4855 | ||
021230d4 | 4856 | for (i = 0; i < adapter->num_tx_queues; i++) |
b6ec895e | 4857 | ixgbe_clean_tx_ring(adapter->tx_ring[i]); |
9a799d71 AK |
4858 | } |
4859 | ||
e4911d57 AD |
4860 | static void ixgbe_fdir_filter_exit(struct ixgbe_adapter *adapter) |
4861 | { | |
b67bfe0d | 4862 | struct hlist_node *node2; |
e4911d57 AD |
4863 | struct ixgbe_fdir_filter *filter; |
4864 | ||
4865 | spin_lock(&adapter->fdir_perfect_lock); | |
4866 | ||
b67bfe0d | 4867 | hlist_for_each_entry_safe(filter, node2, |
e4911d57 AD |
4868 | &adapter->fdir_filter_list, fdir_node) { |
4869 | hlist_del(&filter->fdir_node); | |
4870 | kfree(filter); | |
4871 | } | |
4872 | adapter->fdir_filter_count = 0; | |
4873 | ||
4874 | spin_unlock(&adapter->fdir_perfect_lock); | |
4875 | } | |
4876 | ||
9a799d71 AK |
4877 | void ixgbe_down(struct ixgbe_adapter *adapter) |
4878 | { | |
4879 | struct net_device *netdev = adapter->netdev; | |
7f821875 | 4880 | struct ixgbe_hw *hw = &adapter->hw; |
2a47fa45 JF |
4881 | struct net_device *upper; |
4882 | struct list_head *iter; | |
9a799d71 | 4883 | u32 rxctrl; |
bf29ee6c | 4884 | int i; |
9a799d71 AK |
4885 | |
4886 | /* signal that we are down to the interrupt handler */ | |
c3049c8f MR |
4887 | if (test_and_set_bit(__IXGBE_DOWN, &adapter->state)) |
4888 | return; /* do nothing if already down */ | |
9a799d71 AK |
4889 | |
4890 | /* disable receives */ | |
7f821875 JB |
4891 | rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL); |
4892 | IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl & ~IXGBE_RXCTRL_RXEN); | |
9a799d71 | 4893 | |
2d39d576 YZ |
4894 | /* disable all enabled rx queues */ |
4895 | for (i = 0; i < adapter->num_rx_queues; i++) | |
4896 | /* this call also flushes the previous write */ | |
4897 | ixgbe_disable_rx_queue(adapter, adapter->rx_ring[i]); | |
4898 | ||
032b4325 | 4899 | usleep_range(10000, 20000); |
9a799d71 | 4900 | |
7f821875 JB |
4901 | netif_tx_stop_all_queues(netdev); |
4902 | ||
7086400d | 4903 | /* call carrier off first to avoid false dev_watchdog timeouts */ |
c0dfb90e JF |
4904 | netif_carrier_off(netdev); |
4905 | netif_tx_disable(netdev); | |
4906 | ||
2a47fa45 JF |
4907 | /* disable any upper devices */ |
4908 | netdev_for_each_all_upper_dev_rcu(adapter->netdev, upper, iter) { | |
4909 | if (netif_is_macvlan(upper)) { | |
4910 | struct macvlan_dev *vlan = netdev_priv(upper); | |
4911 | ||
4912 | if (vlan->fwd_priv) { | |
4913 | netif_tx_stop_all_queues(upper); | |
4914 | netif_carrier_off(upper); | |
4915 | netif_tx_disable(upper); | |
4916 | } | |
4917 | } | |
4918 | } | |
4919 | ||
c0dfb90e JF |
4920 | ixgbe_irq_disable(adapter); |
4921 | ||
4922 | ixgbe_napi_disable_all(adapter); | |
4923 | ||
d034acf1 AD |
4924 | adapter->flags2 &= ~(IXGBE_FLAG2_FDIR_REQUIRES_REINIT | |
4925 | IXGBE_FLAG2_RESET_REQUESTED); | |
7086400d AD |
4926 | adapter->flags &= ~IXGBE_FLAG_NEED_LINK_UPDATE; |
4927 | ||
4928 | del_timer_sync(&adapter->service_timer); | |
4929 | ||
34cecbbf | 4930 | if (adapter->num_vfs) { |
8e34d1aa AD |
4931 | /* Clear EITR Select mapping */ |
4932 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, 0); | |
34cecbbf AD |
4933 | |
4934 | /* Mark all the VFs as inactive */ | |
4935 | for (i = 0 ; i < adapter->num_vfs; i++) | |
3db1cd5c | 4936 | adapter->vfinfo[i].clear_to_send = false; |
34cecbbf | 4937 | |
34cecbbf AD |
4938 | /* ping all the active vfs to let them know we are going down */ |
4939 | ixgbe_ping_all_vfs(adapter); | |
4940 | ||
4941 | /* Disable all VFTE/VFRE TX/RX */ | |
4942 | ixgbe_disable_tx_rx(adapter); | |
b25ebfd2 PW |
4943 | } |
4944 | ||
7f821875 JB |
4945 | /* disable transmits in the hardware now that interrupts are off */ |
4946 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
bf29ee6c | 4947 | u8 reg_idx = adapter->tx_ring[i]->reg_idx; |
34cecbbf | 4948 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), IXGBE_TXDCTL_SWFLSH); |
7f821875 | 4949 | } |
34cecbbf AD |
4950 | |
4951 | /* Disable the Tx DMA engine on 82599 and X540 */ | |
bd508178 AD |
4952 | switch (hw->mac.type) { |
4953 | case ixgbe_mac_82599EB: | |
b93a2226 | 4954 | case ixgbe_mac_X540: |
88512539 | 4955 | IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL, |
e8e9f696 JP |
4956 | (IXGBE_READ_REG(hw, IXGBE_DMATXCTL) & |
4957 | ~IXGBE_DMATXCTL_TE)); | |
bd508178 AD |
4958 | break; |
4959 | default: | |
4960 | break; | |
4961 | } | |
7f821875 | 4962 | |
6f4a0e45 PL |
4963 | if (!pci_channel_offline(adapter->pdev)) |
4964 | ixgbe_reset(adapter); | |
c6ecf39a | 4965 | |
ec74a471 ET |
4966 | /* power down the optics for 82599 SFP+ fiber */ |
4967 | if (hw->mac.ops.disable_tx_laser) | |
c6ecf39a DS |
4968 | hw->mac.ops.disable_tx_laser(hw); |
4969 | ||
9a799d71 AK |
4970 | ixgbe_clean_all_tx_rings(adapter); |
4971 | ixgbe_clean_all_rx_rings(adapter); | |
4972 | ||
5dd2d332 | 4973 | #ifdef CONFIG_IXGBE_DCA |
96b0e0f6 | 4974 | /* since we reset the hardware DCA settings were cleared */ |
e35ec126 | 4975 | ixgbe_setup_dca(adapter); |
96b0e0f6 | 4976 | #endif |
9a799d71 AK |
4977 | } |
4978 | ||
9a799d71 AK |
4979 | /** |
4980 | * ixgbe_tx_timeout - Respond to a Tx Hang | |
4981 | * @netdev: network interface device structure | |
4982 | **/ | |
4983 | static void ixgbe_tx_timeout(struct net_device *netdev) | |
4984 | { | |
4985 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
4986 | ||
4987 | /* Do the reset outside of interrupt context */ | |
c83c6cbd | 4988 | ixgbe_tx_timeout_reset(adapter); |
9a799d71 AK |
4989 | } |
4990 | ||
9a799d71 AK |
4991 | /** |
4992 | * ixgbe_sw_init - Initialize general software structures (struct ixgbe_adapter) | |
4993 | * @adapter: board private structure to initialize | |
4994 | * | |
4995 | * ixgbe_sw_init initializes the Adapter private data structure. | |
4996 | * Fields are initialized based on PCI device information and | |
4997 | * OS network device settings (MTU size). | |
4998 | **/ | |
9f9a12f8 | 4999 | static int ixgbe_sw_init(struct ixgbe_adapter *adapter) |
9a799d71 AK |
5000 | { |
5001 | struct ixgbe_hw *hw = &adapter->hw; | |
5002 | struct pci_dev *pdev = adapter->pdev; | |
d3cb9869 | 5003 | unsigned int rss, fdir; |
cb6d0f5e | 5004 | u32 fwsm; |
7a6b6f51 | 5005 | #ifdef CONFIG_IXGBE_DCB |
2f90b865 AD |
5006 | int j; |
5007 | struct tc_configuration *tc; | |
5008 | #endif | |
021230d4 | 5009 | |
c44ade9e JB |
5010 | /* PCI config space info */ |
5011 | ||
5012 | hw->vendor_id = pdev->vendor; | |
5013 | hw->device_id = pdev->device; | |
5014 | hw->revision_id = pdev->revision; | |
5015 | hw->subsystem_vendor_id = pdev->subsystem_vendor; | |
5016 | hw->subsystem_device_id = pdev->subsystem_device; | |
5017 | ||
8fc3bb6d | 5018 | /* Set common capability flags and settings */ |
3ed69d7e | 5019 | rss = min_t(int, IXGBE_MAX_RSS_INDICES, num_online_cpus()); |
c087663e | 5020 | adapter->ring_feature[RING_F_RSS].limit = rss; |
8fc3bb6d ET |
5021 | adapter->flags2 |= IXGBE_FLAG2_RSC_CAPABLE; |
5022 | adapter->flags2 |= IXGBE_FLAG2_RSC_ENABLED; | |
8fc3bb6d ET |
5023 | adapter->max_q_vectors = MAX_Q_VECTORS_82599; |
5024 | adapter->atr_sample_rate = 20; | |
d3cb9869 AD |
5025 | fdir = min_t(int, IXGBE_MAX_FDIR_INDICES, num_online_cpus()); |
5026 | adapter->ring_feature[RING_F_FDIR].limit = fdir; | |
8fc3bb6d ET |
5027 | adapter->fdir_pballoc = IXGBE_FDIR_PBALLOC_64K; |
5028 | #ifdef CONFIG_IXGBE_DCA | |
5029 | adapter->flags |= IXGBE_FLAG_DCA_CAPABLE; | |
5030 | #endif | |
5031 | #ifdef IXGBE_FCOE | |
5032 | adapter->flags |= IXGBE_FLAG_FCOE_CAPABLE; | |
5033 | adapter->flags &= ~IXGBE_FLAG_FCOE_ENABLED; | |
5034 | #ifdef CONFIG_IXGBE_DCB | |
5035 | /* Default traffic class to use for FCoE */ | |
5036 | adapter->fcoe.up = IXGBE_FCOE_DEFTC; | |
5037 | #endif /* CONFIG_IXGBE_DCB */ | |
5038 | #endif /* IXGBE_FCOE */ | |
5039 | ||
5d7daa35 JK |
5040 | adapter->mac_table = kzalloc(sizeof(struct ixgbe_mac_addr) * |
5041 | hw->mac.num_rar_entries, | |
5042 | GFP_ATOMIC); | |
5043 | ||
8fc3bb6d | 5044 | /* Set MAC specific capability flags and exceptions */ |
bd508178 AD |
5045 | switch (hw->mac.type) { |
5046 | case ixgbe_mac_82598EB: | |
8fc3bb6d ET |
5047 | adapter->flags2 &= ~IXGBE_FLAG2_RSC_CAPABLE; |
5048 | adapter->flags2 &= ~IXGBE_FLAG2_RSC_ENABLED; | |
5049 | ||
bf069c97 DS |
5050 | if (hw->device_id == IXGBE_DEV_ID_82598AT) |
5051 | adapter->flags |= IXGBE_FLAG_FAN_FAIL_CAPABLE; | |
8fc3bb6d | 5052 | |
49c7ffbe | 5053 | adapter->max_q_vectors = MAX_Q_VECTORS_82598; |
8fc3bb6d ET |
5054 | adapter->ring_feature[RING_F_FDIR].limit = 0; |
5055 | adapter->atr_sample_rate = 0; | |
5056 | adapter->fdir_pballoc = 0; | |
5057 | #ifdef IXGBE_FCOE | |
5058 | adapter->flags &= ~IXGBE_FLAG_FCOE_CAPABLE; | |
5059 | adapter->flags &= ~IXGBE_FLAG_FCOE_ENABLED; | |
5060 | #ifdef CONFIG_IXGBE_DCB | |
5061 | adapter->fcoe.up = 0; | |
5062 | #endif /* IXGBE_DCB */ | |
5063 | #endif /* IXGBE_FCOE */ | |
5064 | break; | |
5065 | case ixgbe_mac_82599EB: | |
5066 | if (hw->device_id == IXGBE_DEV_ID_82599_T3_LOM) | |
5067 | adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_CAPABLE; | |
bd508178 | 5068 | break; |
b93a2226 | 5069 | case ixgbe_mac_X540: |
cb6d0f5e JK |
5070 | fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM); |
5071 | if (fwsm & IXGBE_FWSM_TS_ENABLED) | |
5072 | adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_CAPABLE; | |
bd508178 AD |
5073 | break; |
5074 | default: | |
5075 | break; | |
f8212f97 | 5076 | } |
2f90b865 | 5077 | |
7c8ae65a AD |
5078 | #ifdef IXGBE_FCOE |
5079 | /* FCoE support exists, always init the FCoE lock */ | |
5080 | spin_lock_init(&adapter->fcoe.lock); | |
5081 | ||
5082 | #endif | |
1fc5f038 AD |
5083 | /* n-tuple support exists, always init our spinlock */ |
5084 | spin_lock_init(&adapter->fdir_perfect_lock); | |
5085 | ||
7a6b6f51 | 5086 | #ifdef CONFIG_IXGBE_DCB |
4de2a022 JF |
5087 | switch (hw->mac.type) { |
5088 | case ixgbe_mac_X540: | |
5089 | adapter->dcb_cfg.num_tcs.pg_tcs = X540_TRAFFIC_CLASS; | |
5090 | adapter->dcb_cfg.num_tcs.pfc_tcs = X540_TRAFFIC_CLASS; | |
5091 | break; | |
5092 | default: | |
5093 | adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS; | |
5094 | adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS; | |
5095 | break; | |
5096 | } | |
5097 | ||
2f90b865 AD |
5098 | /* Configure DCB traffic classes */ |
5099 | for (j = 0; j < MAX_TRAFFIC_CLASS; j++) { | |
5100 | tc = &adapter->dcb_cfg.tc_config[j]; | |
5101 | tc->path[DCB_TX_CONFIG].bwg_id = 0; | |
5102 | tc->path[DCB_TX_CONFIG].bwg_percent = 12 + (j & 1); | |
5103 | tc->path[DCB_RX_CONFIG].bwg_id = 0; | |
5104 | tc->path[DCB_RX_CONFIG].bwg_percent = 12 + (j & 1); | |
5105 | tc->dcb_pfc = pfc_disabled; | |
5106 | } | |
4de2a022 JF |
5107 | |
5108 | /* Initialize default user to priority mapping, UPx->TC0 */ | |
5109 | tc = &adapter->dcb_cfg.tc_config[0]; | |
5110 | tc->path[DCB_TX_CONFIG].up_to_tc_bitmap = 0xFF; | |
5111 | tc->path[DCB_RX_CONFIG].up_to_tc_bitmap = 0xFF; | |
5112 | ||
2f90b865 AD |
5113 | adapter->dcb_cfg.bw_percentage[DCB_TX_CONFIG][0] = 100; |
5114 | adapter->dcb_cfg.bw_percentage[DCB_RX_CONFIG][0] = 100; | |
264857b8 | 5115 | adapter->dcb_cfg.pfc_mode_enable = false; |
2f90b865 | 5116 | adapter->dcb_set_bitmap = 0x00; |
3032309b | 5117 | adapter->dcbx_cap = DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_CEE; |
f525c6d2 JF |
5118 | memcpy(&adapter->temp_dcb_cfg, &adapter->dcb_cfg, |
5119 | sizeof(adapter->temp_dcb_cfg)); | |
2f90b865 AD |
5120 | |
5121 | #endif | |
9a799d71 AK |
5122 | |
5123 | /* default flow control settings */ | |
cd7664f6 | 5124 | hw->fc.requested_mode = ixgbe_fc_full; |
71fd570b | 5125 | hw->fc.current_mode = ixgbe_fc_full; /* init for ethtool output */ |
9da712d2 | 5126 | ixgbe_pbthresh_setup(adapter); |
2b9ade93 JB |
5127 | hw->fc.pause_time = IXGBE_DEFAULT_FCPAUSE; |
5128 | hw->fc.send_xon = true; | |
73d80953 | 5129 | hw->fc.disable_fc_autoneg = ixgbe_device_supports_autoneg_fc(hw); |
9a799d71 | 5130 | |
99d74487 | 5131 | #ifdef CONFIG_PCI_IOV |
170e8543 JK |
5132 | if (max_vfs > 0) |
5133 | e_dev_warn("Enabling SR-IOV VFs using the max_vfs module parameter is deprecated - please use the pci sysfs interface instead.\n"); | |
5134 | ||
99d74487 | 5135 | /* assign number of SR-IOV VFs */ |
170e8543 | 5136 | if (hw->mac.type != ixgbe_mac_82598EB) { |
dcc23e3a | 5137 | if (max_vfs > IXGBE_MAX_VFS_DRV_LIMIT) { |
170e8543 JK |
5138 | adapter->num_vfs = 0; |
5139 | e_dev_warn("max_vfs parameter out of range. Not assigning any SR-IOV VFs\n"); | |
5140 | } else { | |
5141 | adapter->num_vfs = max_vfs; | |
5142 | } | |
5143 | } | |
5144 | #endif /* CONFIG_PCI_IOV */ | |
99d74487 | 5145 | |
30efa5a3 | 5146 | /* enable itr by default in dynamic mode */ |
f7554a2b | 5147 | adapter->rx_itr_setting = 1; |
f7554a2b | 5148 | adapter->tx_itr_setting = 1; |
30efa5a3 | 5149 | |
30efa5a3 JB |
5150 | /* set default ring sizes */ |
5151 | adapter->tx_ring_count = IXGBE_DEFAULT_TXD; | |
5152 | adapter->rx_ring_count = IXGBE_DEFAULT_RXD; | |
5153 | ||
bd198058 | 5154 | /* set default work limits */ |
59224555 | 5155 | adapter->tx_work_limit = IXGBE_DEFAULT_TX_WORK; |
bd198058 | 5156 | |
9a799d71 | 5157 | /* initialize eeprom parameters */ |
c44ade9e | 5158 | if (ixgbe_init_eeprom_params_generic(hw)) { |
849c4542 | 5159 | e_dev_err("EEPROM initialization failed\n"); |
9a799d71 AK |
5160 | return -EIO; |
5161 | } | |
5162 | ||
2a47fa45 JF |
5163 | /* PF holds first pool slot */ |
5164 | set_bit(0, &adapter->fwd_bitmask); | |
9a799d71 AK |
5165 | set_bit(__IXGBE_DOWN, &adapter->state); |
5166 | ||
5167 | return 0; | |
5168 | } | |
5169 | ||
5170 | /** | |
5171 | * ixgbe_setup_tx_resources - allocate Tx resources (Descriptors) | |
3a581073 | 5172 | * @tx_ring: tx descriptor ring (for a specific queue) to setup |
9a799d71 AK |
5173 | * |
5174 | * Return 0 on success, negative on failure | |
5175 | **/ | |
b6ec895e | 5176 | int ixgbe_setup_tx_resources(struct ixgbe_ring *tx_ring) |
9a799d71 | 5177 | { |
b6ec895e | 5178 | struct device *dev = tx_ring->dev; |
de88eeeb | 5179 | int orig_node = dev_to_node(dev); |
ca8dfe25 | 5180 | int ring_node = -1; |
9a799d71 AK |
5181 | int size; |
5182 | ||
3a581073 | 5183 | size = sizeof(struct ixgbe_tx_buffer) * tx_ring->count; |
de88eeeb AD |
5184 | |
5185 | if (tx_ring->q_vector) | |
ca8dfe25 | 5186 | ring_node = tx_ring->q_vector->numa_node; |
de88eeeb | 5187 | |
ca8dfe25 | 5188 | tx_ring->tx_buffer_info = vzalloc_node(size, ring_node); |
1a6c14a2 | 5189 | if (!tx_ring->tx_buffer_info) |
89bf67f1 | 5190 | tx_ring->tx_buffer_info = vzalloc(size); |
e01c31a5 JB |
5191 | if (!tx_ring->tx_buffer_info) |
5192 | goto err; | |
9a799d71 | 5193 | |
827da44c JS |
5194 | u64_stats_init(&tx_ring->syncp); |
5195 | ||
9a799d71 | 5196 | /* round up to nearest 4K */ |
12207e49 | 5197 | tx_ring->size = tx_ring->count * sizeof(union ixgbe_adv_tx_desc); |
3a581073 | 5198 | tx_ring->size = ALIGN(tx_ring->size, 4096); |
9a799d71 | 5199 | |
ca8dfe25 | 5200 | set_dev_node(dev, ring_node); |
de88eeeb AD |
5201 | tx_ring->desc = dma_alloc_coherent(dev, |
5202 | tx_ring->size, | |
5203 | &tx_ring->dma, | |
5204 | GFP_KERNEL); | |
5205 | set_dev_node(dev, orig_node); | |
5206 | if (!tx_ring->desc) | |
5207 | tx_ring->desc = dma_alloc_coherent(dev, tx_ring->size, | |
5208 | &tx_ring->dma, GFP_KERNEL); | |
e01c31a5 JB |
5209 | if (!tx_ring->desc) |
5210 | goto err; | |
9a799d71 | 5211 | |
3a581073 JB |
5212 | tx_ring->next_to_use = 0; |
5213 | tx_ring->next_to_clean = 0; | |
9a799d71 | 5214 | return 0; |
e01c31a5 JB |
5215 | |
5216 | err: | |
5217 | vfree(tx_ring->tx_buffer_info); | |
5218 | tx_ring->tx_buffer_info = NULL; | |
b6ec895e | 5219 | dev_err(dev, "Unable to allocate memory for the Tx descriptor ring\n"); |
e01c31a5 | 5220 | return -ENOMEM; |
9a799d71 AK |
5221 | } |
5222 | ||
69888674 AD |
5223 | /** |
5224 | * ixgbe_setup_all_tx_resources - allocate all queues Tx resources | |
5225 | * @adapter: board private structure | |
5226 | * | |
5227 | * If this function returns with an error, then it's possible one or | |
5228 | * more of the rings is populated (while the rest are not). It is the | |
5229 | * callers duty to clean those orphaned rings. | |
5230 | * | |
5231 | * Return 0 on success, negative on failure | |
5232 | **/ | |
5233 | static int ixgbe_setup_all_tx_resources(struct ixgbe_adapter *adapter) | |
5234 | { | |
5235 | int i, err = 0; | |
5236 | ||
5237 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
b6ec895e | 5238 | err = ixgbe_setup_tx_resources(adapter->tx_ring[i]); |
69888674 AD |
5239 | if (!err) |
5240 | continue; | |
de3d5b94 | 5241 | |
396e799c | 5242 | e_err(probe, "Allocation for Tx Queue %u failed\n", i); |
de3d5b94 | 5243 | goto err_setup_tx; |
69888674 AD |
5244 | } |
5245 | ||
de3d5b94 AD |
5246 | return 0; |
5247 | err_setup_tx: | |
5248 | /* rewind the index freeing the rings as we go */ | |
5249 | while (i--) | |
5250 | ixgbe_free_tx_resources(adapter->tx_ring[i]); | |
69888674 AD |
5251 | return err; |
5252 | } | |
5253 | ||
9a799d71 AK |
5254 | /** |
5255 | * ixgbe_setup_rx_resources - allocate Rx resources (Descriptors) | |
3a581073 | 5256 | * @rx_ring: rx descriptor ring (for a specific queue) to setup |
9a799d71 AK |
5257 | * |
5258 | * Returns 0 on success, negative on failure | |
5259 | **/ | |
b6ec895e | 5260 | int ixgbe_setup_rx_resources(struct ixgbe_ring *rx_ring) |
9a799d71 | 5261 | { |
b6ec895e | 5262 | struct device *dev = rx_ring->dev; |
de88eeeb | 5263 | int orig_node = dev_to_node(dev); |
ca8dfe25 | 5264 | int ring_node = -1; |
021230d4 | 5265 | int size; |
9a799d71 | 5266 | |
3a581073 | 5267 | size = sizeof(struct ixgbe_rx_buffer) * rx_ring->count; |
de88eeeb AD |
5268 | |
5269 | if (rx_ring->q_vector) | |
ca8dfe25 | 5270 | ring_node = rx_ring->q_vector->numa_node; |
de88eeeb | 5271 | |
ca8dfe25 | 5272 | rx_ring->rx_buffer_info = vzalloc_node(size, ring_node); |
1a6c14a2 | 5273 | if (!rx_ring->rx_buffer_info) |
89bf67f1 | 5274 | rx_ring->rx_buffer_info = vzalloc(size); |
b6ec895e AD |
5275 | if (!rx_ring->rx_buffer_info) |
5276 | goto err; | |
9a799d71 | 5277 | |
827da44c JS |
5278 | u64_stats_init(&rx_ring->syncp); |
5279 | ||
9a799d71 | 5280 | /* Round up to nearest 4K */ |
3a581073 JB |
5281 | rx_ring->size = rx_ring->count * sizeof(union ixgbe_adv_rx_desc); |
5282 | rx_ring->size = ALIGN(rx_ring->size, 4096); | |
9a799d71 | 5283 | |
ca8dfe25 | 5284 | set_dev_node(dev, ring_node); |
de88eeeb AD |
5285 | rx_ring->desc = dma_alloc_coherent(dev, |
5286 | rx_ring->size, | |
5287 | &rx_ring->dma, | |
5288 | GFP_KERNEL); | |
5289 | set_dev_node(dev, orig_node); | |
5290 | if (!rx_ring->desc) | |
5291 | rx_ring->desc = dma_alloc_coherent(dev, rx_ring->size, | |
5292 | &rx_ring->dma, GFP_KERNEL); | |
b6ec895e AD |
5293 | if (!rx_ring->desc) |
5294 | goto err; | |
9a799d71 | 5295 | |
3a581073 JB |
5296 | rx_ring->next_to_clean = 0; |
5297 | rx_ring->next_to_use = 0; | |
9a799d71 AK |
5298 | |
5299 | return 0; | |
b6ec895e AD |
5300 | err: |
5301 | vfree(rx_ring->rx_buffer_info); | |
5302 | rx_ring->rx_buffer_info = NULL; | |
5303 | dev_err(dev, "Unable to allocate memory for the Rx descriptor ring\n"); | |
177db6ff | 5304 | return -ENOMEM; |
9a799d71 AK |
5305 | } |
5306 | ||
69888674 AD |
5307 | /** |
5308 | * ixgbe_setup_all_rx_resources - allocate all queues Rx resources | |
5309 | * @adapter: board private structure | |
5310 | * | |
5311 | * If this function returns with an error, then it's possible one or | |
5312 | * more of the rings is populated (while the rest are not). It is the | |
5313 | * callers duty to clean those orphaned rings. | |
5314 | * | |
5315 | * Return 0 on success, negative on failure | |
5316 | **/ | |
69888674 AD |
5317 | static int ixgbe_setup_all_rx_resources(struct ixgbe_adapter *adapter) |
5318 | { | |
5319 | int i, err = 0; | |
5320 | ||
5321 | for (i = 0; i < adapter->num_rx_queues; i++) { | |
b6ec895e | 5322 | err = ixgbe_setup_rx_resources(adapter->rx_ring[i]); |
69888674 AD |
5323 | if (!err) |
5324 | continue; | |
de3d5b94 | 5325 | |
396e799c | 5326 | e_err(probe, "Allocation for Rx Queue %u failed\n", i); |
de3d5b94 | 5327 | goto err_setup_rx; |
69888674 AD |
5328 | } |
5329 | ||
7c8ae65a AD |
5330 | #ifdef IXGBE_FCOE |
5331 | err = ixgbe_setup_fcoe_ddp_resources(adapter); | |
5332 | if (!err) | |
5333 | #endif | |
5334 | return 0; | |
de3d5b94 AD |
5335 | err_setup_rx: |
5336 | /* rewind the index freeing the rings as we go */ | |
5337 | while (i--) | |
5338 | ixgbe_free_rx_resources(adapter->rx_ring[i]); | |
69888674 AD |
5339 | return err; |
5340 | } | |
5341 | ||
9a799d71 AK |
5342 | /** |
5343 | * ixgbe_free_tx_resources - Free Tx Resources per Queue | |
9a799d71 AK |
5344 | * @tx_ring: Tx descriptor ring for a specific queue |
5345 | * | |
5346 | * Free all transmit software resources | |
5347 | **/ | |
b6ec895e | 5348 | void ixgbe_free_tx_resources(struct ixgbe_ring *tx_ring) |
9a799d71 | 5349 | { |
b6ec895e | 5350 | ixgbe_clean_tx_ring(tx_ring); |
9a799d71 AK |
5351 | |
5352 | vfree(tx_ring->tx_buffer_info); | |
5353 | tx_ring->tx_buffer_info = NULL; | |
5354 | ||
b6ec895e AD |
5355 | /* if not set, then don't free */ |
5356 | if (!tx_ring->desc) | |
5357 | return; | |
5358 | ||
5359 | dma_free_coherent(tx_ring->dev, tx_ring->size, | |
5360 | tx_ring->desc, tx_ring->dma); | |
9a799d71 AK |
5361 | |
5362 | tx_ring->desc = NULL; | |
5363 | } | |
5364 | ||
5365 | /** | |
5366 | * ixgbe_free_all_tx_resources - Free Tx Resources for All Queues | |
5367 | * @adapter: board private structure | |
5368 | * | |
5369 | * Free all transmit software resources | |
5370 | **/ | |
5371 | static void ixgbe_free_all_tx_resources(struct ixgbe_adapter *adapter) | |
5372 | { | |
5373 | int i; | |
5374 | ||
5375 | for (i = 0; i < adapter->num_tx_queues; i++) | |
4a0b9ca0 | 5376 | if (adapter->tx_ring[i]->desc) |
b6ec895e | 5377 | ixgbe_free_tx_resources(adapter->tx_ring[i]); |
9a799d71 AK |
5378 | } |
5379 | ||
5380 | /** | |
b4617240 | 5381 | * ixgbe_free_rx_resources - Free Rx Resources |
9a799d71 AK |
5382 | * @rx_ring: ring to clean the resources from |
5383 | * | |
5384 | * Free all receive software resources | |
5385 | **/ | |
b6ec895e | 5386 | void ixgbe_free_rx_resources(struct ixgbe_ring *rx_ring) |
9a799d71 | 5387 | { |
b6ec895e | 5388 | ixgbe_clean_rx_ring(rx_ring); |
9a799d71 AK |
5389 | |
5390 | vfree(rx_ring->rx_buffer_info); | |
5391 | rx_ring->rx_buffer_info = NULL; | |
5392 | ||
b6ec895e AD |
5393 | /* if not set, then don't free */ |
5394 | if (!rx_ring->desc) | |
5395 | return; | |
5396 | ||
5397 | dma_free_coherent(rx_ring->dev, rx_ring->size, | |
5398 | rx_ring->desc, rx_ring->dma); | |
9a799d71 AK |
5399 | |
5400 | rx_ring->desc = NULL; | |
5401 | } | |
5402 | ||
5403 | /** | |
5404 | * ixgbe_free_all_rx_resources - Free Rx Resources for All Queues | |
5405 | * @adapter: board private structure | |
5406 | * | |
5407 | * Free all receive software resources | |
5408 | **/ | |
5409 | static void ixgbe_free_all_rx_resources(struct ixgbe_adapter *adapter) | |
5410 | { | |
5411 | int i; | |
5412 | ||
7c8ae65a AD |
5413 | #ifdef IXGBE_FCOE |
5414 | ixgbe_free_fcoe_ddp_resources(adapter); | |
5415 | ||
5416 | #endif | |
9a799d71 | 5417 | for (i = 0; i < adapter->num_rx_queues; i++) |
4a0b9ca0 | 5418 | if (adapter->rx_ring[i]->desc) |
b6ec895e | 5419 | ixgbe_free_rx_resources(adapter->rx_ring[i]); |
9a799d71 AK |
5420 | } |
5421 | ||
9a799d71 AK |
5422 | /** |
5423 | * ixgbe_change_mtu - Change the Maximum Transfer Unit | |
5424 | * @netdev: network interface device structure | |
5425 | * @new_mtu: new value for maximum frame size | |
5426 | * | |
5427 | * Returns 0 on success, negative on failure | |
5428 | **/ | |
5429 | static int ixgbe_change_mtu(struct net_device *netdev, int new_mtu) | |
5430 | { | |
5431 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
5432 | int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN; | |
5433 | ||
42c783c5 | 5434 | /* MTU < 68 is an error and causes problems on some kernels */ |
655309e9 AD |
5435 | if ((new_mtu < 68) || (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE)) |
5436 | return -EINVAL; | |
5437 | ||
5438 | /* | |
872844dd AD |
5439 | * For 82599EB we cannot allow legacy VFs to enable their receive |
5440 | * paths when MTU greater than 1500 is configured. So display a | |
5441 | * warning that legacy VFs will be disabled. | |
655309e9 AD |
5442 | */ |
5443 | if ((adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) && | |
5444 | (adapter->hw.mac.type == ixgbe_mac_82599EB) && | |
c560451c | 5445 | (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN))) |
872844dd | 5446 | e_warn(probe, "Setting MTU > 1500 will disable legacy VFs\n"); |
9a799d71 | 5447 | |
396e799c | 5448 | e_info(probe, "changing MTU from %d to %d\n", netdev->mtu, new_mtu); |
655309e9 | 5449 | |
021230d4 | 5450 | /* must set new MTU before calling down or up */ |
9a799d71 AK |
5451 | netdev->mtu = new_mtu; |
5452 | ||
d4f80882 AV |
5453 | if (netif_running(netdev)) |
5454 | ixgbe_reinit_locked(adapter); | |
9a799d71 AK |
5455 | |
5456 | return 0; | |
5457 | } | |
5458 | ||
5459 | /** | |
5460 | * ixgbe_open - Called when a network interface is made active | |
5461 | * @netdev: network interface device structure | |
5462 | * | |
5463 | * Returns 0 on success, negative value on failure | |
5464 | * | |
5465 | * The open entry point is called when a network interface is made | |
5466 | * active by the system (IFF_UP). At this point all resources needed | |
5467 | * for transmit and receive operations are allocated, the interrupt | |
5468 | * handler is registered with the OS, the watchdog timer is started, | |
5469 | * and the stack is notified that the interface is ready. | |
5470 | **/ | |
5471 | static int ixgbe_open(struct net_device *netdev) | |
5472 | { | |
5473 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
2a47fa45 | 5474 | int err, queues; |
4bebfaa5 AK |
5475 | |
5476 | /* disallow open during test */ | |
5477 | if (test_bit(__IXGBE_TESTING, &adapter->state)) | |
5478 | return -EBUSY; | |
9a799d71 | 5479 | |
54386467 JB |
5480 | netif_carrier_off(netdev); |
5481 | ||
9a799d71 AK |
5482 | /* allocate transmit descriptors */ |
5483 | err = ixgbe_setup_all_tx_resources(adapter); | |
5484 | if (err) | |
5485 | goto err_setup_tx; | |
5486 | ||
9a799d71 AK |
5487 | /* allocate receive descriptors */ |
5488 | err = ixgbe_setup_all_rx_resources(adapter); | |
5489 | if (err) | |
5490 | goto err_setup_rx; | |
5491 | ||
5492 | ixgbe_configure(adapter); | |
5493 | ||
021230d4 | 5494 | err = ixgbe_request_irq(adapter); |
9a799d71 AK |
5495 | if (err) |
5496 | goto err_req_irq; | |
5497 | ||
ac802f5d | 5498 | /* Notify the stack of the actual queue counts. */ |
2a47fa45 JF |
5499 | if (adapter->num_rx_pools > 1) |
5500 | queues = adapter->num_rx_queues_per_pool; | |
5501 | else | |
5502 | queues = adapter->num_tx_queues; | |
5503 | ||
5504 | err = netif_set_real_num_tx_queues(netdev, queues); | |
ac802f5d AD |
5505 | if (err) |
5506 | goto err_set_queues; | |
5507 | ||
2a47fa45 JF |
5508 | if (adapter->num_rx_pools > 1 && |
5509 | adapter->num_rx_queues > IXGBE_MAX_L2A_QUEUES) | |
5510 | queues = IXGBE_MAX_L2A_QUEUES; | |
5511 | else | |
5512 | queues = adapter->num_rx_queues; | |
5513 | err = netif_set_real_num_rx_queues(netdev, queues); | |
ac802f5d AD |
5514 | if (err) |
5515 | goto err_set_queues; | |
5516 | ||
1a71ab24 | 5517 | ixgbe_ptp_init(adapter); |
1a71ab24 | 5518 | |
c7ccde0f | 5519 | ixgbe_up_complete(adapter); |
9a799d71 AK |
5520 | |
5521 | return 0; | |
5522 | ||
ac802f5d AD |
5523 | err_set_queues: |
5524 | ixgbe_free_irq(adapter); | |
9a799d71 | 5525 | err_req_irq: |
a20a1199 | 5526 | ixgbe_free_all_rx_resources(adapter); |
de3d5b94 | 5527 | err_setup_rx: |
a20a1199 | 5528 | ixgbe_free_all_tx_resources(adapter); |
de3d5b94 | 5529 | err_setup_tx: |
9a799d71 AK |
5530 | ixgbe_reset(adapter); |
5531 | ||
5532 | return err; | |
5533 | } | |
5534 | ||
a0cccce2 JK |
5535 | static void ixgbe_close_suspend(struct ixgbe_adapter *adapter) |
5536 | { | |
5537 | ixgbe_ptp_suspend(adapter); | |
5538 | ||
5539 | ixgbe_down(adapter); | |
5540 | ixgbe_free_irq(adapter); | |
5541 | ||
5542 | ixgbe_free_all_tx_resources(adapter); | |
5543 | ixgbe_free_all_rx_resources(adapter); | |
5544 | } | |
5545 | ||
9a799d71 AK |
5546 | /** |
5547 | * ixgbe_close - Disables a network interface | |
5548 | * @netdev: network interface device structure | |
5549 | * | |
5550 | * Returns 0, this is not allowed to fail | |
5551 | * | |
5552 | * The close entry point is called when an interface is de-activated | |
5553 | * by the OS. The hardware is still under the drivers control, but | |
5554 | * needs to be disabled. A global MAC reset is issued to stop the | |
5555 | * hardware, and all transmit and receive resources are freed. | |
5556 | **/ | |
5557 | static int ixgbe_close(struct net_device *netdev) | |
5558 | { | |
5559 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
9a799d71 | 5560 | |
1a71ab24 | 5561 | ixgbe_ptp_stop(adapter); |
1a71ab24 | 5562 | |
a0cccce2 | 5563 | ixgbe_close_suspend(adapter); |
9a799d71 | 5564 | |
e4911d57 AD |
5565 | ixgbe_fdir_filter_exit(adapter); |
5566 | ||
5eba3699 | 5567 | ixgbe_release_hw_control(adapter); |
9a799d71 AK |
5568 | |
5569 | return 0; | |
5570 | } | |
5571 | ||
b3c8b4ba AD |
5572 | #ifdef CONFIG_PM |
5573 | static int ixgbe_resume(struct pci_dev *pdev) | |
5574 | { | |
c60fbb00 AD |
5575 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
5576 | struct net_device *netdev = adapter->netdev; | |
b3c8b4ba AD |
5577 | u32 err; |
5578 | ||
0391bbe3 | 5579 | adapter->hw.hw_addr = adapter->io_addr; |
b3c8b4ba AD |
5580 | pci_set_power_state(pdev, PCI_D0); |
5581 | pci_restore_state(pdev); | |
656ab817 DS |
5582 | /* |
5583 | * pci_restore_state clears dev->state_saved so call | |
5584 | * pci_save_state to restore it. | |
5585 | */ | |
5586 | pci_save_state(pdev); | |
9ce77666 | 5587 | |
5588 | err = pci_enable_device_mem(pdev); | |
b3c8b4ba | 5589 | if (err) { |
849c4542 | 5590 | e_dev_err("Cannot enable PCI device from suspend\n"); |
b3c8b4ba AD |
5591 | return err; |
5592 | } | |
4e857c58 | 5593 | smp_mb__before_atomic(); |
41c62843 | 5594 | clear_bit(__IXGBE_DISABLED, &adapter->state); |
b3c8b4ba AD |
5595 | pci_set_master(pdev); |
5596 | ||
dd4d8ca6 | 5597 | pci_wake_from_d3(pdev, false); |
b3c8b4ba | 5598 | |
b3c8b4ba AD |
5599 | ixgbe_reset(adapter); |
5600 | ||
495dce12 WJP |
5601 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); |
5602 | ||
ac802f5d AD |
5603 | rtnl_lock(); |
5604 | err = ixgbe_init_interrupt_scheme(adapter); | |
5605 | if (!err && netif_running(netdev)) | |
c60fbb00 | 5606 | err = ixgbe_open(netdev); |
ac802f5d AD |
5607 | |
5608 | rtnl_unlock(); | |
5609 | ||
5610 | if (err) | |
5611 | return err; | |
b3c8b4ba AD |
5612 | |
5613 | netif_device_attach(netdev); | |
5614 | ||
5615 | return 0; | |
5616 | } | |
b3c8b4ba | 5617 | #endif /* CONFIG_PM */ |
9d8d05ae RW |
5618 | |
5619 | static int __ixgbe_shutdown(struct pci_dev *pdev, bool *enable_wake) | |
b3c8b4ba | 5620 | { |
c60fbb00 AD |
5621 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
5622 | struct net_device *netdev = adapter->netdev; | |
e8e26350 PW |
5623 | struct ixgbe_hw *hw = &adapter->hw; |
5624 | u32 ctrl, fctrl; | |
5625 | u32 wufc = adapter->wol; | |
b3c8b4ba AD |
5626 | #ifdef CONFIG_PM |
5627 | int retval = 0; | |
5628 | #endif | |
5629 | ||
5630 | netif_device_detach(netdev); | |
5631 | ||
499ab5cc | 5632 | rtnl_lock(); |
a0cccce2 JK |
5633 | if (netif_running(netdev)) |
5634 | ixgbe_close_suspend(adapter); | |
499ab5cc | 5635 | rtnl_unlock(); |
b3c8b4ba | 5636 | |
5f5ae6fc AD |
5637 | ixgbe_clear_interrupt_scheme(adapter); |
5638 | ||
b3c8b4ba AD |
5639 | #ifdef CONFIG_PM |
5640 | retval = pci_save_state(pdev); | |
5641 | if (retval) | |
5642 | return retval; | |
4df10466 | 5643 | |
b3c8b4ba | 5644 | #endif |
f4f1040a JK |
5645 | if (hw->mac.ops.stop_link_on_d3) |
5646 | hw->mac.ops.stop_link_on_d3(hw); | |
5647 | ||
e8e26350 PW |
5648 | if (wufc) { |
5649 | ixgbe_set_rx_mode(netdev); | |
b3c8b4ba | 5650 | |
ec74a471 ET |
5651 | /* enable the optics for 82599 SFP+ fiber as we can WoL */ |
5652 | if (hw->mac.ops.enable_tx_laser) | |
c509e754 DS |
5653 | hw->mac.ops.enable_tx_laser(hw); |
5654 | ||
e8e26350 PW |
5655 | /* turn on all-multi mode if wake on multicast is enabled */ |
5656 | if (wufc & IXGBE_WUFC_MC) { | |
5657 | fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL); | |
5658 | fctrl |= IXGBE_FCTRL_MPE; | |
5659 | IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl); | |
5660 | } | |
5661 | ||
5662 | ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL); | |
5663 | ctrl |= IXGBE_CTRL_GIO_DIS; | |
5664 | IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl); | |
5665 | ||
5666 | IXGBE_WRITE_REG(hw, IXGBE_WUFC, wufc); | |
5667 | } else { | |
5668 | IXGBE_WRITE_REG(hw, IXGBE_WUC, 0); | |
5669 | IXGBE_WRITE_REG(hw, IXGBE_WUFC, 0); | |
5670 | } | |
5671 | ||
bd508178 AD |
5672 | switch (hw->mac.type) { |
5673 | case ixgbe_mac_82598EB: | |
dd4d8ca6 | 5674 | pci_wake_from_d3(pdev, false); |
bd508178 AD |
5675 | break; |
5676 | case ixgbe_mac_82599EB: | |
b93a2226 | 5677 | case ixgbe_mac_X540: |
bd508178 AD |
5678 | pci_wake_from_d3(pdev, !!wufc); |
5679 | break; | |
5680 | default: | |
5681 | break; | |
5682 | } | |
b3c8b4ba | 5683 | |
9d8d05ae RW |
5684 | *enable_wake = !!wufc; |
5685 | ||
b3c8b4ba AD |
5686 | ixgbe_release_hw_control(adapter); |
5687 | ||
41c62843 MR |
5688 | if (!test_and_set_bit(__IXGBE_DISABLED, &adapter->state)) |
5689 | pci_disable_device(pdev); | |
b3c8b4ba | 5690 | |
9d8d05ae RW |
5691 | return 0; |
5692 | } | |
5693 | ||
5694 | #ifdef CONFIG_PM | |
5695 | static int ixgbe_suspend(struct pci_dev *pdev, pm_message_t state) | |
5696 | { | |
5697 | int retval; | |
5698 | bool wake; | |
5699 | ||
5700 | retval = __ixgbe_shutdown(pdev, &wake); | |
5701 | if (retval) | |
5702 | return retval; | |
5703 | ||
5704 | if (wake) { | |
5705 | pci_prepare_to_sleep(pdev); | |
5706 | } else { | |
5707 | pci_wake_from_d3(pdev, false); | |
5708 | pci_set_power_state(pdev, PCI_D3hot); | |
5709 | } | |
b3c8b4ba AD |
5710 | |
5711 | return 0; | |
5712 | } | |
9d8d05ae | 5713 | #endif /* CONFIG_PM */ |
b3c8b4ba AD |
5714 | |
5715 | static void ixgbe_shutdown(struct pci_dev *pdev) | |
5716 | { | |
9d8d05ae RW |
5717 | bool wake; |
5718 | ||
5719 | __ixgbe_shutdown(pdev, &wake); | |
5720 | ||
5721 | if (system_state == SYSTEM_POWER_OFF) { | |
5722 | pci_wake_from_d3(pdev, wake); | |
5723 | pci_set_power_state(pdev, PCI_D3hot); | |
5724 | } | |
b3c8b4ba AD |
5725 | } |
5726 | ||
9a799d71 AK |
5727 | /** |
5728 | * ixgbe_update_stats - Update the board statistics counters. | |
5729 | * @adapter: board private structure | |
5730 | **/ | |
5731 | void ixgbe_update_stats(struct ixgbe_adapter *adapter) | |
5732 | { | |
2d86f139 | 5733 | struct net_device *netdev = adapter->netdev; |
9a799d71 | 5734 | struct ixgbe_hw *hw = &adapter->hw; |
5b7da515 | 5735 | struct ixgbe_hw_stats *hwstats = &adapter->stats; |
6f11eef7 AV |
5736 | u64 total_mpc = 0; |
5737 | u32 i, missed_rx = 0, mpc, bprc, lxon, lxoff, xon_off_tot; | |
5b7da515 AD |
5738 | u64 non_eop_descs = 0, restart_queue = 0, tx_busy = 0; |
5739 | u64 alloc_rx_page_failed = 0, alloc_rx_buff_failed = 0; | |
8a0da21b | 5740 | u64 bytes = 0, packets = 0, hw_csum_rx_error = 0; |
9a799d71 | 5741 | |
d08935c2 DS |
5742 | if (test_bit(__IXGBE_DOWN, &adapter->state) || |
5743 | test_bit(__IXGBE_RESETTING, &adapter->state)) | |
5744 | return; | |
5745 | ||
94b982b2 | 5746 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) { |
f8212f97 | 5747 | u64 rsc_count = 0; |
94b982b2 | 5748 | u64 rsc_flush = 0; |
94b982b2 | 5749 | for (i = 0; i < adapter->num_rx_queues; i++) { |
5b7da515 AD |
5750 | rsc_count += adapter->rx_ring[i]->rx_stats.rsc_count; |
5751 | rsc_flush += adapter->rx_ring[i]->rx_stats.rsc_flush; | |
94b982b2 MC |
5752 | } |
5753 | adapter->rsc_total_count = rsc_count; | |
5754 | adapter->rsc_total_flush = rsc_flush; | |
d51019a4 PW |
5755 | } |
5756 | ||
5b7da515 AD |
5757 | for (i = 0; i < adapter->num_rx_queues; i++) { |
5758 | struct ixgbe_ring *rx_ring = adapter->rx_ring[i]; | |
5759 | non_eop_descs += rx_ring->rx_stats.non_eop_descs; | |
5760 | alloc_rx_page_failed += rx_ring->rx_stats.alloc_rx_page_failed; | |
5761 | alloc_rx_buff_failed += rx_ring->rx_stats.alloc_rx_buff_failed; | |
8a0da21b | 5762 | hw_csum_rx_error += rx_ring->rx_stats.csum_err; |
5b7da515 AD |
5763 | bytes += rx_ring->stats.bytes; |
5764 | packets += rx_ring->stats.packets; | |
5765 | } | |
5766 | adapter->non_eop_descs = non_eop_descs; | |
5767 | adapter->alloc_rx_page_failed = alloc_rx_page_failed; | |
5768 | adapter->alloc_rx_buff_failed = alloc_rx_buff_failed; | |
8a0da21b | 5769 | adapter->hw_csum_rx_error = hw_csum_rx_error; |
5b7da515 AD |
5770 | netdev->stats.rx_bytes = bytes; |
5771 | netdev->stats.rx_packets = packets; | |
5772 | ||
5773 | bytes = 0; | |
5774 | packets = 0; | |
7ca3bc58 | 5775 | /* gather some stats to the adapter struct that are per queue */ |
5b7da515 AD |
5776 | for (i = 0; i < adapter->num_tx_queues; i++) { |
5777 | struct ixgbe_ring *tx_ring = adapter->tx_ring[i]; | |
5778 | restart_queue += tx_ring->tx_stats.restart_queue; | |
5779 | tx_busy += tx_ring->tx_stats.tx_busy; | |
5780 | bytes += tx_ring->stats.bytes; | |
5781 | packets += tx_ring->stats.packets; | |
5782 | } | |
eb985f09 | 5783 | adapter->restart_queue = restart_queue; |
5b7da515 AD |
5784 | adapter->tx_busy = tx_busy; |
5785 | netdev->stats.tx_bytes = bytes; | |
5786 | netdev->stats.tx_packets = packets; | |
7ca3bc58 | 5787 | |
7ca647bd | 5788 | hwstats->crcerrs += IXGBE_READ_REG(hw, IXGBE_CRCERRS); |
1a70db4b ET |
5789 | |
5790 | /* 8 register reads */ | |
6f11eef7 AV |
5791 | for (i = 0; i < 8; i++) { |
5792 | /* for packet buffers not used, the register should read 0 */ | |
5793 | mpc = IXGBE_READ_REG(hw, IXGBE_MPC(i)); | |
5794 | missed_rx += mpc; | |
7ca647bd JP |
5795 | hwstats->mpc[i] += mpc; |
5796 | total_mpc += hwstats->mpc[i]; | |
1a70db4b ET |
5797 | hwstats->pxontxc[i] += IXGBE_READ_REG(hw, IXGBE_PXONTXC(i)); |
5798 | hwstats->pxofftxc[i] += IXGBE_READ_REG(hw, IXGBE_PXOFFTXC(i)); | |
bd508178 AD |
5799 | switch (hw->mac.type) { |
5800 | case ixgbe_mac_82598EB: | |
1a70db4b ET |
5801 | hwstats->rnbc[i] += IXGBE_READ_REG(hw, IXGBE_RNBC(i)); |
5802 | hwstats->qbtc[i] += IXGBE_READ_REG(hw, IXGBE_QBTC(i)); | |
5803 | hwstats->qbrc[i] += IXGBE_READ_REG(hw, IXGBE_QBRC(i)); | |
7ca647bd JP |
5804 | hwstats->pxonrxc[i] += |
5805 | IXGBE_READ_REG(hw, IXGBE_PXONRXC(i)); | |
bd508178 AD |
5806 | break; |
5807 | case ixgbe_mac_82599EB: | |
b93a2226 | 5808 | case ixgbe_mac_X540: |
bd508178 AD |
5809 | hwstats->pxonrxc[i] += |
5810 | IXGBE_READ_REG(hw, IXGBE_PXONRXCNT(i)); | |
bd508178 AD |
5811 | break; |
5812 | default: | |
5813 | break; | |
e8e26350 | 5814 | } |
6f11eef7 | 5815 | } |
1a70db4b ET |
5816 | |
5817 | /*16 register reads */ | |
5818 | for (i = 0; i < 16; i++) { | |
5819 | hwstats->qptc[i] += IXGBE_READ_REG(hw, IXGBE_QPTC(i)); | |
5820 | hwstats->qprc[i] += IXGBE_READ_REG(hw, IXGBE_QPRC(i)); | |
5821 | if ((hw->mac.type == ixgbe_mac_82599EB) || | |
5822 | (hw->mac.type == ixgbe_mac_X540)) { | |
5823 | hwstats->qbtc[i] += IXGBE_READ_REG(hw, IXGBE_QBTC_L(i)); | |
5824 | IXGBE_READ_REG(hw, IXGBE_QBTC_H(i)); /* to clear */ | |
5825 | hwstats->qbrc[i] += IXGBE_READ_REG(hw, IXGBE_QBRC_L(i)); | |
5826 | IXGBE_READ_REG(hw, IXGBE_QBRC_H(i)); /* to clear */ | |
5827 | } | |
5828 | } | |
5829 | ||
7ca647bd | 5830 | hwstats->gprc += IXGBE_READ_REG(hw, IXGBE_GPRC); |
6f11eef7 | 5831 | /* work around hardware counting issue */ |
7ca647bd | 5832 | hwstats->gprc -= missed_rx; |
6f11eef7 | 5833 | |
c84d324c JF |
5834 | ixgbe_update_xoff_received(adapter); |
5835 | ||
6f11eef7 | 5836 | /* 82598 hardware only has a 32 bit counter in the high register */ |
bd508178 AD |
5837 | switch (hw->mac.type) { |
5838 | case ixgbe_mac_82598EB: | |
5839 | hwstats->lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXC); | |
bd508178 AD |
5840 | hwstats->gorc += IXGBE_READ_REG(hw, IXGBE_GORCH); |
5841 | hwstats->gotc += IXGBE_READ_REG(hw, IXGBE_GOTCH); | |
5842 | hwstats->tor += IXGBE_READ_REG(hw, IXGBE_TORH); | |
5843 | break; | |
b93a2226 | 5844 | case ixgbe_mac_X540: |
58f6bcf9 ET |
5845 | /* OS2BMC stats are X540 only*/ |
5846 | hwstats->o2bgptc += IXGBE_READ_REG(hw, IXGBE_O2BGPTC); | |
5847 | hwstats->o2bspc += IXGBE_READ_REG(hw, IXGBE_O2BSPC); | |
5848 | hwstats->b2ospc += IXGBE_READ_REG(hw, IXGBE_B2OSPC); | |
5849 | hwstats->b2ogprc += IXGBE_READ_REG(hw, IXGBE_B2OGPRC); | |
5850 | case ixgbe_mac_82599EB: | |
a4d4f629 AD |
5851 | for (i = 0; i < 16; i++) |
5852 | adapter->hw_rx_no_dma_resources += | |
5853 | IXGBE_READ_REG(hw, IXGBE_QPRDC(i)); | |
7ca647bd | 5854 | hwstats->gorc += IXGBE_READ_REG(hw, IXGBE_GORCL); |
bd508178 | 5855 | IXGBE_READ_REG(hw, IXGBE_GORCH); /* to clear */ |
7ca647bd | 5856 | hwstats->gotc += IXGBE_READ_REG(hw, IXGBE_GOTCL); |
bd508178 | 5857 | IXGBE_READ_REG(hw, IXGBE_GOTCH); /* to clear */ |
7ca647bd | 5858 | hwstats->tor += IXGBE_READ_REG(hw, IXGBE_TORL); |
bd508178 | 5859 | IXGBE_READ_REG(hw, IXGBE_TORH); /* to clear */ |
7ca647bd | 5860 | hwstats->lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXCNT); |
7ca647bd JP |
5861 | hwstats->fdirmatch += IXGBE_READ_REG(hw, IXGBE_FDIRMATCH); |
5862 | hwstats->fdirmiss += IXGBE_READ_REG(hw, IXGBE_FDIRMISS); | |
6d45522c | 5863 | #ifdef IXGBE_FCOE |
7ca647bd JP |
5864 | hwstats->fccrc += IXGBE_READ_REG(hw, IXGBE_FCCRC); |
5865 | hwstats->fcoerpdc += IXGBE_READ_REG(hw, IXGBE_FCOERPDC); | |
5866 | hwstats->fcoeprc += IXGBE_READ_REG(hw, IXGBE_FCOEPRC); | |
5867 | hwstats->fcoeptc += IXGBE_READ_REG(hw, IXGBE_FCOEPTC); | |
5868 | hwstats->fcoedwrc += IXGBE_READ_REG(hw, IXGBE_FCOEDWRC); | |
5869 | hwstats->fcoedwtc += IXGBE_READ_REG(hw, IXGBE_FCOEDWTC); | |
7b859ebc | 5870 | /* Add up per cpu counters for total ddp aloc fail */ |
5a1ee270 AD |
5871 | if (adapter->fcoe.ddp_pool) { |
5872 | struct ixgbe_fcoe *fcoe = &adapter->fcoe; | |
5873 | struct ixgbe_fcoe_ddp_pool *ddp_pool; | |
5874 | unsigned int cpu; | |
5875 | u64 noddp = 0, noddp_ext_buff = 0; | |
7b859ebc | 5876 | for_each_possible_cpu(cpu) { |
5a1ee270 AD |
5877 | ddp_pool = per_cpu_ptr(fcoe->ddp_pool, cpu); |
5878 | noddp += ddp_pool->noddp; | |
5879 | noddp_ext_buff += ddp_pool->noddp_ext_buff; | |
7b859ebc | 5880 | } |
5a1ee270 AD |
5881 | hwstats->fcoe_noddp = noddp; |
5882 | hwstats->fcoe_noddp_ext_buff = noddp_ext_buff; | |
7b859ebc | 5883 | } |
6d45522c | 5884 | #endif /* IXGBE_FCOE */ |
bd508178 AD |
5885 | break; |
5886 | default: | |
5887 | break; | |
e8e26350 | 5888 | } |
9a799d71 | 5889 | bprc = IXGBE_READ_REG(hw, IXGBE_BPRC); |
7ca647bd JP |
5890 | hwstats->bprc += bprc; |
5891 | hwstats->mprc += IXGBE_READ_REG(hw, IXGBE_MPRC); | |
e8e26350 | 5892 | if (hw->mac.type == ixgbe_mac_82598EB) |
7ca647bd JP |
5893 | hwstats->mprc -= bprc; |
5894 | hwstats->roc += IXGBE_READ_REG(hw, IXGBE_ROC); | |
5895 | hwstats->prc64 += IXGBE_READ_REG(hw, IXGBE_PRC64); | |
5896 | hwstats->prc127 += IXGBE_READ_REG(hw, IXGBE_PRC127); | |
5897 | hwstats->prc255 += IXGBE_READ_REG(hw, IXGBE_PRC255); | |
5898 | hwstats->prc511 += IXGBE_READ_REG(hw, IXGBE_PRC511); | |
5899 | hwstats->prc1023 += IXGBE_READ_REG(hw, IXGBE_PRC1023); | |
5900 | hwstats->prc1522 += IXGBE_READ_REG(hw, IXGBE_PRC1522); | |
5901 | hwstats->rlec += IXGBE_READ_REG(hw, IXGBE_RLEC); | |
6f11eef7 | 5902 | lxon = IXGBE_READ_REG(hw, IXGBE_LXONTXC); |
7ca647bd | 5903 | hwstats->lxontxc += lxon; |
6f11eef7 | 5904 | lxoff = IXGBE_READ_REG(hw, IXGBE_LXOFFTXC); |
7ca647bd | 5905 | hwstats->lxofftxc += lxoff; |
7ca647bd JP |
5906 | hwstats->gptc += IXGBE_READ_REG(hw, IXGBE_GPTC); |
5907 | hwstats->mptc += IXGBE_READ_REG(hw, IXGBE_MPTC); | |
6f11eef7 AV |
5908 | /* |
5909 | * 82598 errata - tx of flow control packets is included in tx counters | |
5910 | */ | |
5911 | xon_off_tot = lxon + lxoff; | |
7ca647bd JP |
5912 | hwstats->gptc -= xon_off_tot; |
5913 | hwstats->mptc -= xon_off_tot; | |
5914 | hwstats->gotc -= (xon_off_tot * (ETH_ZLEN + ETH_FCS_LEN)); | |
5915 | hwstats->ruc += IXGBE_READ_REG(hw, IXGBE_RUC); | |
5916 | hwstats->rfc += IXGBE_READ_REG(hw, IXGBE_RFC); | |
5917 | hwstats->rjc += IXGBE_READ_REG(hw, IXGBE_RJC); | |
5918 | hwstats->tpr += IXGBE_READ_REG(hw, IXGBE_TPR); | |
5919 | hwstats->ptc64 += IXGBE_READ_REG(hw, IXGBE_PTC64); | |
5920 | hwstats->ptc64 -= xon_off_tot; | |
5921 | hwstats->ptc127 += IXGBE_READ_REG(hw, IXGBE_PTC127); | |
5922 | hwstats->ptc255 += IXGBE_READ_REG(hw, IXGBE_PTC255); | |
5923 | hwstats->ptc511 += IXGBE_READ_REG(hw, IXGBE_PTC511); | |
5924 | hwstats->ptc1023 += IXGBE_READ_REG(hw, IXGBE_PTC1023); | |
5925 | hwstats->ptc1522 += IXGBE_READ_REG(hw, IXGBE_PTC1522); | |
5926 | hwstats->bptc += IXGBE_READ_REG(hw, IXGBE_BPTC); | |
9a799d71 AK |
5927 | |
5928 | /* Fill out the OS statistics structure */ | |
7ca647bd | 5929 | netdev->stats.multicast = hwstats->mprc; |
9a799d71 AK |
5930 | |
5931 | /* Rx Errors */ | |
7ca647bd | 5932 | netdev->stats.rx_errors = hwstats->crcerrs + hwstats->rlec; |
2d86f139 | 5933 | netdev->stats.rx_dropped = 0; |
7ca647bd JP |
5934 | netdev->stats.rx_length_errors = hwstats->rlec; |
5935 | netdev->stats.rx_crc_errors = hwstats->crcerrs; | |
2d86f139 | 5936 | netdev->stats.rx_missed_errors = total_mpc; |
9a799d71 AK |
5937 | } |
5938 | ||
5939 | /** | |
d034acf1 | 5940 | * ixgbe_fdir_reinit_subtask - worker thread to reinit FDIR filter table |
49ce9c2c | 5941 | * @adapter: pointer to the device adapter structure |
9a799d71 | 5942 | **/ |
d034acf1 | 5943 | static void ixgbe_fdir_reinit_subtask(struct ixgbe_adapter *adapter) |
9a799d71 | 5944 | { |
cf8280ee | 5945 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a | 5946 | int i; |
cf8280ee | 5947 | |
d034acf1 AD |
5948 | if (!(adapter->flags2 & IXGBE_FLAG2_FDIR_REQUIRES_REINIT)) |
5949 | return; | |
5950 | ||
5951 | adapter->flags2 &= ~IXGBE_FLAG2_FDIR_REQUIRES_REINIT; | |
22d5a71b | 5952 | |
d034acf1 | 5953 | /* if interface is down do nothing */ |
fe49f04a | 5954 | if (test_bit(__IXGBE_DOWN, &adapter->state)) |
d034acf1 AD |
5955 | return; |
5956 | ||
5957 | /* do nothing if we are not using signature filters */ | |
5958 | if (!(adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE)) | |
5959 | return; | |
5960 | ||
5961 | adapter->fdir_overflow++; | |
5962 | ||
93c52dd0 AD |
5963 | if (ixgbe_reinit_fdir_tables_82599(hw) == 0) { |
5964 | for (i = 0; i < adapter->num_tx_queues; i++) | |
5965 | set_bit(__IXGBE_TX_FDIR_INIT_DONE, | |
e7cf745b | 5966 | &(adapter->tx_ring[i]->state)); |
d034acf1 AD |
5967 | /* re-enable flow director interrupts */ |
5968 | IXGBE_WRITE_REG(hw, IXGBE_EIMS, IXGBE_EIMS_FLOW_DIR); | |
93c52dd0 AD |
5969 | } else { |
5970 | e_err(probe, "failed to finish FDIR re-initialization, " | |
5971 | "ignored adding FDIR ATR filters\n"); | |
5972 | } | |
93c52dd0 AD |
5973 | } |
5974 | ||
5975 | /** | |
5976 | * ixgbe_check_hang_subtask - check for hung queues and dropped interrupts | |
49ce9c2c | 5977 | * @adapter: pointer to the device adapter structure |
93c52dd0 AD |
5978 | * |
5979 | * This function serves two purposes. First it strobes the interrupt lines | |
52f33af8 | 5980 | * in order to make certain interrupts are occurring. Secondly it sets the |
93c52dd0 | 5981 | * bits needed to check for TX hangs. As a result we should immediately |
52f33af8 | 5982 | * determine if a hang has occurred. |
93c52dd0 AD |
5983 | */ |
5984 | static void ixgbe_check_hang_subtask(struct ixgbe_adapter *adapter) | |
9a799d71 | 5985 | { |
cf8280ee | 5986 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a AD |
5987 | u64 eics = 0; |
5988 | int i; | |
cf8280ee | 5989 | |
09f40aed | 5990 | /* If we're down, removing or resetting, just bail */ |
93c52dd0 | 5991 | if (test_bit(__IXGBE_DOWN, &adapter->state) || |
09f40aed | 5992 | test_bit(__IXGBE_REMOVING, &adapter->state) || |
93c52dd0 AD |
5993 | test_bit(__IXGBE_RESETTING, &adapter->state)) |
5994 | return; | |
22d5a71b | 5995 | |
93c52dd0 AD |
5996 | /* Force detection of hung controller */ |
5997 | if (netif_carrier_ok(adapter->netdev)) { | |
5998 | for (i = 0; i < adapter->num_tx_queues; i++) | |
5999 | set_check_for_tx_hang(adapter->tx_ring[i]); | |
6000 | } | |
22d5a71b | 6001 | |
fe49f04a AD |
6002 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) { |
6003 | /* | |
6004 | * for legacy and MSI interrupts don't set any bits | |
6005 | * that are enabled for EIAM, because this operation | |
6006 | * would set *both* EIMS and EICS for any bit in EIAM | |
6007 | */ | |
6008 | IXGBE_WRITE_REG(hw, IXGBE_EICS, | |
6009 | (IXGBE_EICS_TCP_TIMER | IXGBE_EICS_OTHER)); | |
93c52dd0 AD |
6010 | } else { |
6011 | /* get one bit for every active tx/rx interrupt vector */ | |
49c7ffbe | 6012 | for (i = 0; i < adapter->num_q_vectors; i++) { |
93c52dd0 | 6013 | struct ixgbe_q_vector *qv = adapter->q_vector[i]; |
efe3d3c8 | 6014 | if (qv->rx.ring || qv->tx.ring) |
93c52dd0 AD |
6015 | eics |= ((u64)1 << i); |
6016 | } | |
cf8280ee | 6017 | } |
9a799d71 | 6018 | |
93c52dd0 | 6019 | /* Cause software interrupt to ensure rings are cleaned */ |
fe49f04a AD |
6020 | ixgbe_irq_rearm_queues(adapter, eics); |
6021 | ||
cf8280ee JB |
6022 | } |
6023 | ||
e8e26350 | 6024 | /** |
93c52dd0 | 6025 | * ixgbe_watchdog_update_link - update the link status |
49ce9c2c BH |
6026 | * @adapter: pointer to the device adapter structure |
6027 | * @link_speed: pointer to a u32 to store the link_speed | |
e8e26350 | 6028 | **/ |
93c52dd0 | 6029 | static void ixgbe_watchdog_update_link(struct ixgbe_adapter *adapter) |
e8e26350 | 6030 | { |
e8e26350 | 6031 | struct ixgbe_hw *hw = &adapter->hw; |
93c52dd0 AD |
6032 | u32 link_speed = adapter->link_speed; |
6033 | bool link_up = adapter->link_up; | |
041441d0 | 6034 | bool pfc_en = adapter->dcb_cfg.pfc_mode_enable; |
e8e26350 | 6035 | |
93c52dd0 AD |
6036 | if (!(adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE)) |
6037 | return; | |
6038 | ||
6039 | if (hw->mac.ops.check_link) { | |
6040 | hw->mac.ops.check_link(hw, &link_speed, &link_up, false); | |
c4cf55e5 | 6041 | } else { |
93c52dd0 AD |
6042 | /* always assume link is up, if no check link function */ |
6043 | link_speed = IXGBE_LINK_SPEED_10GB_FULL; | |
6044 | link_up = true; | |
c4cf55e5 | 6045 | } |
041441d0 AD |
6046 | |
6047 | if (adapter->ixgbe_ieee_pfc) | |
6048 | pfc_en |= !!(adapter->ixgbe_ieee_pfc->pfc_en); | |
6049 | ||
3ebe8fde | 6050 | if (link_up && !((adapter->flags & IXGBE_FLAG_DCB_ENABLED) && pfc_en)) { |
041441d0 | 6051 | hw->mac.ops.fc_enable(hw); |
3ebe8fde AD |
6052 | ixgbe_set_rx_drop_en(adapter); |
6053 | } | |
93c52dd0 AD |
6054 | |
6055 | if (link_up || | |
6056 | time_after(jiffies, (adapter->link_check_timeout + | |
6057 | IXGBE_TRY_LINK_TIMEOUT))) { | |
6058 | adapter->flags &= ~IXGBE_FLAG_NEED_LINK_UPDATE; | |
6059 | IXGBE_WRITE_REG(hw, IXGBE_EIMS, IXGBE_EIMC_LSC); | |
6060 | IXGBE_WRITE_FLUSH(hw); | |
6061 | } | |
6062 | ||
6063 | adapter->link_up = link_up; | |
6064 | adapter->link_speed = link_speed; | |
e8e26350 PW |
6065 | } |
6066 | ||
107d3018 AD |
6067 | static void ixgbe_update_default_up(struct ixgbe_adapter *adapter) |
6068 | { | |
6069 | #ifdef CONFIG_IXGBE_DCB | |
6070 | struct net_device *netdev = adapter->netdev; | |
6071 | struct dcb_app app = { | |
6072 | .selector = IEEE_8021QAZ_APP_SEL_ETHERTYPE, | |
6073 | .protocol = 0, | |
6074 | }; | |
6075 | u8 up = 0; | |
6076 | ||
6077 | if (adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE) | |
6078 | up = dcb_ieee_getapp_mask(netdev, &app); | |
6079 | ||
6080 | adapter->default_up = (up > 1) ? (ffs(up) - 1) : 0; | |
6081 | #endif | |
6082 | } | |
6083 | ||
e8e26350 | 6084 | /** |
93c52dd0 AD |
6085 | * ixgbe_watchdog_link_is_up - update netif_carrier status and |
6086 | * print link up message | |
49ce9c2c | 6087 | * @adapter: pointer to the device adapter structure |
e8e26350 | 6088 | **/ |
93c52dd0 | 6089 | static void ixgbe_watchdog_link_is_up(struct ixgbe_adapter *adapter) |
e8e26350 | 6090 | { |
93c52dd0 | 6091 | struct net_device *netdev = adapter->netdev; |
e8e26350 | 6092 | struct ixgbe_hw *hw = &adapter->hw; |
cdc04dcc ET |
6093 | struct net_device *upper; |
6094 | struct list_head *iter; | |
93c52dd0 AD |
6095 | u32 link_speed = adapter->link_speed; |
6096 | bool flow_rx, flow_tx; | |
e8e26350 | 6097 | |
93c52dd0 AD |
6098 | /* only continue if link was previously down */ |
6099 | if (netif_carrier_ok(netdev)) | |
a985b6c3 | 6100 | return; |
63d6e1d8 | 6101 | |
93c52dd0 | 6102 | adapter->flags2 &= ~IXGBE_FLAG2_SEARCH_FOR_SFP; |
63d6e1d8 | 6103 | |
93c52dd0 AD |
6104 | switch (hw->mac.type) { |
6105 | case ixgbe_mac_82598EB: { | |
6106 | u32 frctl = IXGBE_READ_REG(hw, IXGBE_FCTRL); | |
6107 | u32 rmcs = IXGBE_READ_REG(hw, IXGBE_RMCS); | |
6108 | flow_rx = !!(frctl & IXGBE_FCTRL_RFCE); | |
6109 | flow_tx = !!(rmcs & IXGBE_RMCS_TFCE_802_3X); | |
6110 | } | |
6111 | break; | |
6112 | case ixgbe_mac_X540: | |
6113 | case ixgbe_mac_82599EB: { | |
6114 | u32 mflcn = IXGBE_READ_REG(hw, IXGBE_MFLCN); | |
6115 | u32 fccfg = IXGBE_READ_REG(hw, IXGBE_FCCFG); | |
6116 | flow_rx = !!(mflcn & IXGBE_MFLCN_RFCE); | |
6117 | flow_tx = !!(fccfg & IXGBE_FCCFG_TFCE_802_3X); | |
6118 | } | |
6119 | break; | |
6120 | default: | |
6121 | flow_tx = false; | |
6122 | flow_rx = false; | |
6123 | break; | |
e8e26350 | 6124 | } |
3a6a4eda | 6125 | |
6cb562d6 JK |
6126 | adapter->last_rx_ptp_check = jiffies; |
6127 | ||
8fecf67c | 6128 | if (test_bit(__IXGBE_PTP_RUNNING, &adapter->state)) |
1a71ab24 | 6129 | ixgbe_ptp_start_cyclecounter(adapter); |
3a6a4eda | 6130 | |
93c52dd0 AD |
6131 | e_info(drv, "NIC Link is Up %s, Flow Control: %s\n", |
6132 | (link_speed == IXGBE_LINK_SPEED_10GB_FULL ? | |
6133 | "10 Gbps" : | |
6134 | (link_speed == IXGBE_LINK_SPEED_1GB_FULL ? | |
6135 | "1 Gbps" : | |
6136 | (link_speed == IXGBE_LINK_SPEED_100_FULL ? | |
6137 | "100 Mbps" : | |
6138 | "unknown speed"))), | |
6139 | ((flow_rx && flow_tx) ? "RX/TX" : | |
6140 | (flow_rx ? "RX" : | |
6141 | (flow_tx ? "TX" : "None")))); | |
e8e26350 | 6142 | |
93c52dd0 | 6143 | netif_carrier_on(netdev); |
93c52dd0 | 6144 | ixgbe_check_vf_rate_limit(adapter); |
befa2af7 | 6145 | |
cdc04dcc ET |
6146 | /* enable transmits */ |
6147 | netif_tx_wake_all_queues(adapter->netdev); | |
6148 | ||
6149 | /* enable any upper devices */ | |
6150 | rtnl_lock(); | |
6151 | netdev_for_each_all_upper_dev_rcu(adapter->netdev, upper, iter) { | |
6152 | if (netif_is_macvlan(upper)) { | |
6153 | struct macvlan_dev *vlan = netdev_priv(upper); | |
6154 | ||
6155 | if (vlan->fwd_priv) | |
6156 | netif_tx_wake_all_queues(upper); | |
6157 | } | |
6158 | } | |
6159 | rtnl_unlock(); | |
6160 | ||
107d3018 AD |
6161 | /* update the default user priority for VFs */ |
6162 | ixgbe_update_default_up(adapter); | |
6163 | ||
befa2af7 AD |
6164 | /* ping all the active vfs to let them know link has changed */ |
6165 | ixgbe_ping_all_vfs(adapter); | |
e8e26350 PW |
6166 | } |
6167 | ||
c4cf55e5 | 6168 | /** |
93c52dd0 AD |
6169 | * ixgbe_watchdog_link_is_down - update netif_carrier status and |
6170 | * print link down message | |
49ce9c2c | 6171 | * @adapter: pointer to the adapter structure |
c4cf55e5 | 6172 | **/ |
581330ba | 6173 | static void ixgbe_watchdog_link_is_down(struct ixgbe_adapter *adapter) |
c4cf55e5 | 6174 | { |
cf8280ee | 6175 | struct net_device *netdev = adapter->netdev; |
c4cf55e5 | 6176 | struct ixgbe_hw *hw = &adapter->hw; |
10eec955 | 6177 | |
93c52dd0 AD |
6178 | adapter->link_up = false; |
6179 | adapter->link_speed = 0; | |
cf8280ee | 6180 | |
93c52dd0 AD |
6181 | /* only continue if link was up previously */ |
6182 | if (!netif_carrier_ok(netdev)) | |
6183 | return; | |
264857b8 | 6184 | |
93c52dd0 AD |
6185 | /* poll for SFP+ cable when link is down */ |
6186 | if (ixgbe_is_sfp(hw) && hw->mac.type == ixgbe_mac_82598EB) | |
6187 | adapter->flags2 |= IXGBE_FLAG2_SEARCH_FOR_SFP; | |
9a799d71 | 6188 | |
8fecf67c | 6189 | if (test_bit(__IXGBE_PTP_RUNNING, &adapter->state)) |
1a71ab24 | 6190 | ixgbe_ptp_start_cyclecounter(adapter); |
3a6a4eda | 6191 | |
93c52dd0 AD |
6192 | e_info(drv, "NIC Link is Down\n"); |
6193 | netif_carrier_off(netdev); | |
befa2af7 AD |
6194 | |
6195 | /* ping all the active vfs to let them know link has changed */ | |
6196 | ixgbe_ping_all_vfs(adapter); | |
93c52dd0 | 6197 | } |
e8e26350 | 6198 | |
07923c17 ET |
6199 | static bool ixgbe_ring_tx_pending(struct ixgbe_adapter *adapter) |
6200 | { | |
6201 | int i; | |
6202 | ||
6203 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
6204 | struct ixgbe_ring *tx_ring = adapter->tx_ring[i]; | |
6205 | ||
6206 | if (tx_ring->next_to_use != tx_ring->next_to_clean) | |
6207 | return true; | |
6208 | } | |
6209 | ||
6210 | return false; | |
6211 | } | |
6212 | ||
6213 | static bool ixgbe_vf_tx_pending(struct ixgbe_adapter *adapter) | |
6214 | { | |
6215 | struct ixgbe_hw *hw = &adapter->hw; | |
6216 | struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ]; | |
6217 | u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask); | |
6218 | ||
6219 | int i, j; | |
6220 | ||
6221 | if (!adapter->num_vfs) | |
6222 | return false; | |
6223 | ||
6224 | for (i = 0; i < adapter->num_vfs; i++) { | |
6225 | for (j = 0; j < q_per_pool; j++) { | |
6226 | u32 h, t; | |
6227 | ||
6228 | h = IXGBE_READ_REG(hw, IXGBE_PVFTDHN(q_per_pool, i, j)); | |
6229 | t = IXGBE_READ_REG(hw, IXGBE_PVFTDTN(q_per_pool, i, j)); | |
6230 | ||
6231 | if (h != t) | |
6232 | return true; | |
6233 | } | |
6234 | } | |
6235 | ||
6236 | return false; | |
6237 | } | |
6238 | ||
93c52dd0 AD |
6239 | /** |
6240 | * ixgbe_watchdog_flush_tx - flush queues on link down | |
49ce9c2c | 6241 | * @adapter: pointer to the device adapter structure |
93c52dd0 AD |
6242 | **/ |
6243 | static void ixgbe_watchdog_flush_tx(struct ixgbe_adapter *adapter) | |
6244 | { | |
93c52dd0 | 6245 | if (!netif_carrier_ok(adapter->netdev)) { |
07923c17 ET |
6246 | if (ixgbe_ring_tx_pending(adapter) || |
6247 | ixgbe_vf_tx_pending(adapter)) { | |
bc59fcda NS |
6248 | /* We've lost link, so the controller stops DMA, |
6249 | * but we've got queued Tx work that's never going | |
6250 | * to get done, so reset controller to flush Tx. | |
6251 | * (Do the reset outside of interrupt context). | |
6252 | */ | |
12ff3f3b | 6253 | e_warn(drv, "initiating reset to clear Tx work after link loss\n"); |
c83c6cbd | 6254 | adapter->flags2 |= IXGBE_FLAG2_RESET_REQUESTED; |
bc59fcda | 6255 | } |
c4cf55e5 | 6256 | } |
c4cf55e5 PWJ |
6257 | } |
6258 | ||
a985b6c3 GR |
6259 | static void ixgbe_spoof_check(struct ixgbe_adapter *adapter) |
6260 | { | |
6261 | u32 ssvpc; | |
6262 | ||
0584d999 GR |
6263 | /* Do not perform spoof check for 82598 or if not in IOV mode */ |
6264 | if (adapter->hw.mac.type == ixgbe_mac_82598EB || | |
6265 | adapter->num_vfs == 0) | |
a985b6c3 GR |
6266 | return; |
6267 | ||
6268 | ssvpc = IXGBE_READ_REG(&adapter->hw, IXGBE_SSVPC); | |
6269 | ||
6270 | /* | |
6271 | * ssvpc register is cleared on read, if zero then no | |
6272 | * spoofed packets in the last interval. | |
6273 | */ | |
6274 | if (!ssvpc) | |
6275 | return; | |
6276 | ||
d6ea0754 | 6277 | e_warn(drv, "%u Spoofed packets detected\n", ssvpc); |
a985b6c3 GR |
6278 | } |
6279 | ||
93c52dd0 AD |
6280 | /** |
6281 | * ixgbe_watchdog_subtask - check and bring link up | |
49ce9c2c | 6282 | * @adapter: pointer to the device adapter structure |
93c52dd0 AD |
6283 | **/ |
6284 | static void ixgbe_watchdog_subtask(struct ixgbe_adapter *adapter) | |
6285 | { | |
09f40aed | 6286 | /* if interface is down, removing or resetting, do nothing */ |
7edebf9a | 6287 | if (test_bit(__IXGBE_DOWN, &adapter->state) || |
09f40aed | 6288 | test_bit(__IXGBE_REMOVING, &adapter->state) || |
7edebf9a | 6289 | test_bit(__IXGBE_RESETTING, &adapter->state)) |
93c52dd0 AD |
6290 | return; |
6291 | ||
6292 | ixgbe_watchdog_update_link(adapter); | |
6293 | ||
6294 | if (adapter->link_up) | |
6295 | ixgbe_watchdog_link_is_up(adapter); | |
6296 | else | |
6297 | ixgbe_watchdog_link_is_down(adapter); | |
bc59fcda | 6298 | |
a985b6c3 | 6299 | ixgbe_spoof_check(adapter); |
9a799d71 | 6300 | ixgbe_update_stats(adapter); |
93c52dd0 AD |
6301 | |
6302 | ixgbe_watchdog_flush_tx(adapter); | |
9a799d71 | 6303 | } |
10eec955 | 6304 | |
cf8280ee | 6305 | /** |
7086400d | 6306 | * ixgbe_sfp_detection_subtask - poll for SFP+ cable |
49ce9c2c | 6307 | * @adapter: the ixgbe adapter structure |
cf8280ee | 6308 | **/ |
7086400d | 6309 | static void ixgbe_sfp_detection_subtask(struct ixgbe_adapter *adapter) |
cf8280ee | 6310 | { |
cf8280ee | 6311 | struct ixgbe_hw *hw = &adapter->hw; |
7086400d | 6312 | s32 err; |
cf8280ee | 6313 | |
7086400d AD |
6314 | /* not searching for SFP so there is nothing to do here */ |
6315 | if (!(adapter->flags2 & IXGBE_FLAG2_SEARCH_FOR_SFP) && | |
6316 | !(adapter->flags2 & IXGBE_FLAG2_SFP_NEEDS_RESET)) | |
6317 | return; | |
10eec955 | 6318 | |
7086400d AD |
6319 | /* someone else is in init, wait until next service event */ |
6320 | if (test_and_set_bit(__IXGBE_IN_SFP_INIT, &adapter->state)) | |
6321 | return; | |
cf8280ee | 6322 | |
7086400d AD |
6323 | err = hw->phy.ops.identify_sfp(hw); |
6324 | if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) | |
6325 | goto sfp_out; | |
264857b8 | 6326 | |
7086400d AD |
6327 | if (err == IXGBE_ERR_SFP_NOT_PRESENT) { |
6328 | /* If no cable is present, then we need to reset | |
6329 | * the next time we find a good cable. */ | |
6330 | adapter->flags2 |= IXGBE_FLAG2_SFP_NEEDS_RESET; | |
cf8280ee | 6331 | } |
9a799d71 | 6332 | |
7086400d AD |
6333 | /* exit on error */ |
6334 | if (err) | |
6335 | goto sfp_out; | |
e8e26350 | 6336 | |
7086400d AD |
6337 | /* exit if reset not needed */ |
6338 | if (!(adapter->flags2 & IXGBE_FLAG2_SFP_NEEDS_RESET)) | |
6339 | goto sfp_out; | |
9a799d71 | 6340 | |
7086400d | 6341 | adapter->flags2 &= ~IXGBE_FLAG2_SFP_NEEDS_RESET; |
bc59fcda | 6342 | |
7086400d AD |
6343 | /* |
6344 | * A module may be identified correctly, but the EEPROM may not have | |
6345 | * support for that module. setup_sfp() will fail in that case, so | |
6346 | * we should not allow that module to load. | |
6347 | */ | |
6348 | if (hw->mac.type == ixgbe_mac_82598EB) | |
6349 | err = hw->phy.ops.reset(hw); | |
6350 | else | |
6351 | err = hw->mac.ops.setup_sfp(hw); | |
6352 | ||
6353 | if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) | |
6354 | goto sfp_out; | |
6355 | ||
6356 | adapter->flags |= IXGBE_FLAG_NEED_LINK_CONFIG; | |
6357 | e_info(probe, "detected SFP+: %d\n", hw->phy.sfp_type); | |
6358 | ||
6359 | sfp_out: | |
6360 | clear_bit(__IXGBE_IN_SFP_INIT, &adapter->state); | |
6361 | ||
6362 | if ((err == IXGBE_ERR_SFP_NOT_SUPPORTED) && | |
6363 | (adapter->netdev->reg_state == NETREG_REGISTERED)) { | |
6364 | e_dev_err("failed to initialize because an unsupported " | |
6365 | "SFP+ module type was detected.\n"); | |
6366 | e_dev_err("Reload the driver after installing a " | |
6367 | "supported module.\n"); | |
6368 | unregister_netdev(adapter->netdev); | |
bc59fcda | 6369 | } |
7086400d | 6370 | } |
bc59fcda | 6371 | |
7086400d AD |
6372 | /** |
6373 | * ixgbe_sfp_link_config_subtask - set up link SFP after module install | |
49ce9c2c | 6374 | * @adapter: the ixgbe adapter structure |
7086400d AD |
6375 | **/ |
6376 | static void ixgbe_sfp_link_config_subtask(struct ixgbe_adapter *adapter) | |
6377 | { | |
6378 | struct ixgbe_hw *hw = &adapter->hw; | |
3d292265 JH |
6379 | u32 speed; |
6380 | bool autoneg = false; | |
7086400d AD |
6381 | |
6382 | if (!(adapter->flags & IXGBE_FLAG_NEED_LINK_CONFIG)) | |
6383 | return; | |
6384 | ||
6385 | /* someone else is in init, wait until next service event */ | |
6386 | if (test_and_set_bit(__IXGBE_IN_SFP_INIT, &adapter->state)) | |
6387 | return; | |
6388 | ||
6389 | adapter->flags &= ~IXGBE_FLAG_NEED_LINK_CONFIG; | |
6390 | ||
3d292265 | 6391 | speed = hw->phy.autoneg_advertised; |
ed33ff66 | 6392 | if ((!speed) && (hw->mac.ops.get_link_capabilities)) { |
3d292265 | 6393 | hw->mac.ops.get_link_capabilities(hw, &speed, &autoneg); |
ed33ff66 ET |
6394 | |
6395 | /* setup the highest link when no autoneg */ | |
6396 | if (!autoneg) { | |
6397 | if (speed & IXGBE_LINK_SPEED_10GB_FULL) | |
6398 | speed = IXGBE_LINK_SPEED_10GB_FULL; | |
6399 | } | |
6400 | } | |
6401 | ||
7086400d | 6402 | if (hw->mac.ops.setup_link) |
fd0326f2 | 6403 | hw->mac.ops.setup_link(hw, speed, true); |
7086400d AD |
6404 | |
6405 | adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; | |
6406 | adapter->link_check_timeout = jiffies; | |
6407 | clear_bit(__IXGBE_IN_SFP_INIT, &adapter->state); | |
6408 | } | |
6409 | ||
83c61fa9 GR |
6410 | #ifdef CONFIG_PCI_IOV |
6411 | static void ixgbe_check_for_bad_vf(struct ixgbe_adapter *adapter) | |
6412 | { | |
6413 | int vf; | |
6414 | struct ixgbe_hw *hw = &adapter->hw; | |
6415 | struct net_device *netdev = adapter->netdev; | |
6416 | u32 gpc; | |
6417 | u32 ciaa, ciad; | |
6418 | ||
6419 | gpc = IXGBE_READ_REG(hw, IXGBE_TXDGPC); | |
6420 | if (gpc) /* If incrementing then no need for the check below */ | |
6421 | return; | |
6422 | /* | |
6423 | * Check to see if a bad DMA write target from an errant or | |
6424 | * malicious VF has caused a PCIe error. If so then we can | |
6425 | * issue a VFLR to the offending VF(s) and then resume without | |
6426 | * requesting a full slot reset. | |
6427 | */ | |
6428 | ||
6429 | for (vf = 0; vf < adapter->num_vfs; vf++) { | |
6430 | ciaa = (vf << 16) | 0x80000000; | |
6431 | /* 32 bit read so align, we really want status at offset 6 */ | |
6432 | ciaa |= PCI_COMMAND; | |
6433 | IXGBE_WRITE_REG(hw, IXGBE_CIAA_82599, ciaa); | |
6434 | ciad = IXGBE_READ_REG(hw, IXGBE_CIAD_82599); | |
6435 | ciaa &= 0x7FFFFFFF; | |
6436 | /* disable debug mode asap after reading data */ | |
6437 | IXGBE_WRITE_REG(hw, IXGBE_CIAA_82599, ciaa); | |
6438 | /* Get the upper 16 bits which will be the PCI status reg */ | |
6439 | ciad >>= 16; | |
6440 | if (ciad & PCI_STATUS_REC_MASTER_ABORT) { | |
6441 | netdev_err(netdev, "VF %d Hung DMA\n", vf); | |
6442 | /* Issue VFLR */ | |
6443 | ciaa = (vf << 16) | 0x80000000; | |
6444 | ciaa |= 0xA8; | |
6445 | IXGBE_WRITE_REG(hw, IXGBE_CIAA_82599, ciaa); | |
6446 | ciad = 0x00008000; /* VFLR */ | |
6447 | IXGBE_WRITE_REG(hw, IXGBE_CIAD_82599, ciad); | |
6448 | ciaa &= 0x7FFFFFFF; | |
6449 | IXGBE_WRITE_REG(hw, IXGBE_CIAA_82599, ciaa); | |
6450 | } | |
6451 | } | |
6452 | } | |
6453 | ||
6454 | #endif | |
7086400d AD |
6455 | /** |
6456 | * ixgbe_service_timer - Timer Call-back | |
6457 | * @data: pointer to adapter cast into an unsigned long | |
6458 | **/ | |
6459 | static void ixgbe_service_timer(unsigned long data) | |
6460 | { | |
6461 | struct ixgbe_adapter *adapter = (struct ixgbe_adapter *)data; | |
6462 | unsigned long next_event_offset; | |
83c61fa9 | 6463 | bool ready = true; |
7086400d | 6464 | |
6bb78cfb AD |
6465 | /* poll faster when waiting for link */ |
6466 | if (adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE) | |
6467 | next_event_offset = HZ / 10; | |
6468 | else | |
6469 | next_event_offset = HZ * 2; | |
83c61fa9 | 6470 | |
6bb78cfb | 6471 | #ifdef CONFIG_PCI_IOV |
83c61fa9 GR |
6472 | /* |
6473 | * don't bother with SR-IOV VF DMA hang check if there are | |
6474 | * no VFs or the link is down | |
6475 | */ | |
6476 | if (!adapter->num_vfs || | |
6bb78cfb | 6477 | (adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE)) |
83c61fa9 | 6478 | goto normal_timer_service; |
83c61fa9 GR |
6479 | |
6480 | /* If we have VFs allocated then we must check for DMA hangs */ | |
6481 | ixgbe_check_for_bad_vf(adapter); | |
6482 | next_event_offset = HZ / 50; | |
6483 | adapter->timer_event_accumulator++; | |
6484 | ||
6bb78cfb | 6485 | if (adapter->timer_event_accumulator >= 100) |
83c61fa9 | 6486 | adapter->timer_event_accumulator = 0; |
7086400d | 6487 | else |
6bb78cfb | 6488 | ready = false; |
7086400d | 6489 | |
6bb78cfb | 6490 | normal_timer_service: |
83c61fa9 | 6491 | #endif |
7086400d AD |
6492 | /* Reset the timer */ |
6493 | mod_timer(&adapter->service_timer, next_event_offset + jiffies); | |
6494 | ||
83c61fa9 GR |
6495 | if (ready) |
6496 | ixgbe_service_event_schedule(adapter); | |
7086400d AD |
6497 | } |
6498 | ||
c83c6cbd AD |
6499 | static void ixgbe_reset_subtask(struct ixgbe_adapter *adapter) |
6500 | { | |
6501 | if (!(adapter->flags2 & IXGBE_FLAG2_RESET_REQUESTED)) | |
6502 | return; | |
6503 | ||
6504 | adapter->flags2 &= ~IXGBE_FLAG2_RESET_REQUESTED; | |
6505 | ||
09f40aed | 6506 | /* If we're already down, removing or resetting, just bail */ |
c83c6cbd | 6507 | if (test_bit(__IXGBE_DOWN, &adapter->state) || |
09f40aed | 6508 | test_bit(__IXGBE_REMOVING, &adapter->state) || |
c83c6cbd AD |
6509 | test_bit(__IXGBE_RESETTING, &adapter->state)) |
6510 | return; | |
6511 | ||
6512 | ixgbe_dump(adapter); | |
6513 | netdev_err(adapter->netdev, "Reset adapter\n"); | |
6514 | adapter->tx_timeout_count++; | |
6515 | ||
8f4c5c9f | 6516 | rtnl_lock(); |
c83c6cbd | 6517 | ixgbe_reinit_locked(adapter); |
8f4c5c9f | 6518 | rtnl_unlock(); |
c83c6cbd AD |
6519 | } |
6520 | ||
7086400d AD |
6521 | /** |
6522 | * ixgbe_service_task - manages and runs subtasks | |
6523 | * @work: pointer to work_struct containing our data | |
6524 | **/ | |
6525 | static void ixgbe_service_task(struct work_struct *work) | |
6526 | { | |
6527 | struct ixgbe_adapter *adapter = container_of(work, | |
6528 | struct ixgbe_adapter, | |
6529 | service_task); | |
b0483c8f MR |
6530 | if (ixgbe_removed(adapter->hw.hw_addr)) { |
6531 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { | |
6532 | rtnl_lock(); | |
6533 | ixgbe_down(adapter); | |
6534 | rtnl_unlock(); | |
6535 | } | |
6536 | ixgbe_service_event_complete(adapter); | |
6537 | return; | |
6538 | } | |
c83c6cbd | 6539 | ixgbe_reset_subtask(adapter); |
7086400d AD |
6540 | ixgbe_sfp_detection_subtask(adapter); |
6541 | ixgbe_sfp_link_config_subtask(adapter); | |
f0f9778d | 6542 | ixgbe_check_overtemp_subtask(adapter); |
93c52dd0 | 6543 | ixgbe_watchdog_subtask(adapter); |
d034acf1 | 6544 | ixgbe_fdir_reinit_subtask(adapter); |
93c52dd0 | 6545 | ixgbe_check_hang_subtask(adapter); |
891dc082 | 6546 | |
8fecf67c | 6547 | if (test_bit(__IXGBE_PTP_RUNNING, &adapter->state)) { |
891dc082 JK |
6548 | ixgbe_ptp_overflow_check(adapter); |
6549 | ixgbe_ptp_rx_hang(adapter); | |
6550 | } | |
7086400d AD |
6551 | |
6552 | ixgbe_service_event_complete(adapter); | |
9a799d71 AK |
6553 | } |
6554 | ||
fd0db0ed AD |
6555 | static int ixgbe_tso(struct ixgbe_ring *tx_ring, |
6556 | struct ixgbe_tx_buffer *first, | |
244e27ad | 6557 | u8 *hdr_len) |
897ab156 | 6558 | { |
fd0db0ed | 6559 | struct sk_buff *skb = first->skb; |
897ab156 AD |
6560 | u32 vlan_macip_lens, type_tucmd; |
6561 | u32 mss_l4len_idx, l4len; | |
2049e1f6 | 6562 | int err; |
9a799d71 | 6563 | |
8f4fbb9b AD |
6564 | if (skb->ip_summed != CHECKSUM_PARTIAL) |
6565 | return 0; | |
6566 | ||
897ab156 AD |
6567 | if (!skb_is_gso(skb)) |
6568 | return 0; | |
9a799d71 | 6569 | |
2049e1f6 FR |
6570 | err = skb_cow_head(skb, 0); |
6571 | if (err < 0) | |
6572 | return err; | |
9a799d71 | 6573 | |
897ab156 AD |
6574 | /* ADV DTYP TUCMD MKRLOC/ISCSIHEDLEN */ |
6575 | type_tucmd = IXGBE_ADVTXD_TUCMD_L4T_TCP; | |
6576 | ||
a1108ffd | 6577 | if (first->protocol == htons(ETH_P_IP)) { |
897ab156 AD |
6578 | struct iphdr *iph = ip_hdr(skb); |
6579 | iph->tot_len = 0; | |
6580 | iph->check = 0; | |
6581 | tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, | |
6582 | iph->daddr, 0, | |
6583 | IPPROTO_TCP, | |
6584 | 0); | |
6585 | type_tucmd |= IXGBE_ADVTXD_TUCMD_IPV4; | |
244e27ad AD |
6586 | first->tx_flags |= IXGBE_TX_FLAGS_TSO | |
6587 | IXGBE_TX_FLAGS_CSUM | | |
6588 | IXGBE_TX_FLAGS_IPV4; | |
897ab156 AD |
6589 | } else if (skb_is_gso_v6(skb)) { |
6590 | ipv6_hdr(skb)->payload_len = 0; | |
6591 | tcp_hdr(skb)->check = | |
6592 | ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, | |
6593 | &ipv6_hdr(skb)->daddr, | |
6594 | 0, IPPROTO_TCP, 0); | |
244e27ad AD |
6595 | first->tx_flags |= IXGBE_TX_FLAGS_TSO | |
6596 | IXGBE_TX_FLAGS_CSUM; | |
897ab156 AD |
6597 | } |
6598 | ||
091a6246 | 6599 | /* compute header lengths */ |
897ab156 AD |
6600 | l4len = tcp_hdrlen(skb); |
6601 | *hdr_len = skb_transport_offset(skb) + l4len; | |
6602 | ||
091a6246 AD |
6603 | /* update gso size and bytecount with header size */ |
6604 | first->gso_segs = skb_shinfo(skb)->gso_segs; | |
6605 | first->bytecount += (first->gso_segs - 1) * *hdr_len; | |
6606 | ||
c44f5f51 | 6607 | /* mss_l4len_id: use 0 as index for TSO */ |
897ab156 AD |
6608 | mss_l4len_idx = l4len << IXGBE_ADVTXD_L4LEN_SHIFT; |
6609 | mss_l4len_idx |= skb_shinfo(skb)->gso_size << IXGBE_ADVTXD_MSS_SHIFT; | |
897ab156 AD |
6610 | |
6611 | /* vlan_macip_lens: HEADLEN, MACLEN, VLAN tag */ | |
6612 | vlan_macip_lens = skb_network_header_len(skb); | |
6613 | vlan_macip_lens |= skb_network_offset(skb) << IXGBE_ADVTXD_MACLEN_SHIFT; | |
244e27ad | 6614 | vlan_macip_lens |= first->tx_flags & IXGBE_TX_FLAGS_VLAN_MASK; |
897ab156 AD |
6615 | |
6616 | ixgbe_tx_ctxtdesc(tx_ring, vlan_macip_lens, 0, type_tucmd, | |
244e27ad | 6617 | mss_l4len_idx); |
897ab156 AD |
6618 | |
6619 | return 1; | |
6620 | } | |
6621 | ||
244e27ad AD |
6622 | static void ixgbe_tx_csum(struct ixgbe_ring *tx_ring, |
6623 | struct ixgbe_tx_buffer *first) | |
7ca647bd | 6624 | { |
fd0db0ed | 6625 | struct sk_buff *skb = first->skb; |
897ab156 AD |
6626 | u32 vlan_macip_lens = 0; |
6627 | u32 mss_l4len_idx = 0; | |
6628 | u32 type_tucmd = 0; | |
7ca647bd | 6629 | |
897ab156 | 6630 | if (skb->ip_summed != CHECKSUM_PARTIAL) { |
472148c3 AD |
6631 | if (!(first->tx_flags & IXGBE_TX_FLAGS_HW_VLAN) && |
6632 | !(first->tx_flags & IXGBE_TX_FLAGS_CC)) | |
6633 | return; | |
897ab156 AD |
6634 | } else { |
6635 | u8 l4_hdr = 0; | |
244e27ad | 6636 | switch (first->protocol) { |
a1108ffd | 6637 | case htons(ETH_P_IP): |
897ab156 AD |
6638 | vlan_macip_lens |= skb_network_header_len(skb); |
6639 | type_tucmd |= IXGBE_ADVTXD_TUCMD_IPV4; | |
6640 | l4_hdr = ip_hdr(skb)->protocol; | |
7ca647bd | 6641 | break; |
a1108ffd | 6642 | case htons(ETH_P_IPV6): |
897ab156 AD |
6643 | vlan_macip_lens |= skb_network_header_len(skb); |
6644 | l4_hdr = ipv6_hdr(skb)->nexthdr; | |
6645 | break; | |
6646 | default: | |
6647 | if (unlikely(net_ratelimit())) { | |
6648 | dev_warn(tx_ring->dev, | |
6649 | "partial checksum but proto=%x!\n", | |
244e27ad | 6650 | first->protocol); |
897ab156 | 6651 | } |
7ca647bd JP |
6652 | break; |
6653 | } | |
897ab156 AD |
6654 | |
6655 | switch (l4_hdr) { | |
7ca647bd | 6656 | case IPPROTO_TCP: |
897ab156 AD |
6657 | type_tucmd |= IXGBE_ADVTXD_TUCMD_L4T_TCP; |
6658 | mss_l4len_idx = tcp_hdrlen(skb) << | |
6659 | IXGBE_ADVTXD_L4LEN_SHIFT; | |
7ca647bd JP |
6660 | break; |
6661 | case IPPROTO_SCTP: | |
897ab156 AD |
6662 | type_tucmd |= IXGBE_ADVTXD_TUCMD_L4T_SCTP; |
6663 | mss_l4len_idx = sizeof(struct sctphdr) << | |
6664 | IXGBE_ADVTXD_L4LEN_SHIFT; | |
6665 | break; | |
6666 | case IPPROTO_UDP: | |
6667 | mss_l4len_idx = sizeof(struct udphdr) << | |
6668 | IXGBE_ADVTXD_L4LEN_SHIFT; | |
6669 | break; | |
6670 | default: | |
6671 | if (unlikely(net_ratelimit())) { | |
6672 | dev_warn(tx_ring->dev, | |
6673 | "partial checksum but l4 proto=%x!\n", | |
244e27ad | 6674 | l4_hdr); |
897ab156 | 6675 | } |
7ca647bd JP |
6676 | break; |
6677 | } | |
244e27ad AD |
6678 | |
6679 | /* update TX checksum flag */ | |
6680 | first->tx_flags |= IXGBE_TX_FLAGS_CSUM; | |
7ca647bd JP |
6681 | } |
6682 | ||
244e27ad | 6683 | /* vlan_macip_lens: MACLEN, VLAN tag */ |
897ab156 | 6684 | vlan_macip_lens |= skb_network_offset(skb) << IXGBE_ADVTXD_MACLEN_SHIFT; |
244e27ad | 6685 | vlan_macip_lens |= first->tx_flags & IXGBE_TX_FLAGS_VLAN_MASK; |
9a799d71 | 6686 | |
897ab156 AD |
6687 | ixgbe_tx_ctxtdesc(tx_ring, vlan_macip_lens, 0, |
6688 | type_tucmd, mss_l4len_idx); | |
9a799d71 AK |
6689 | } |
6690 | ||
472148c3 AD |
6691 | #define IXGBE_SET_FLAG(_input, _flag, _result) \ |
6692 | ((_flag <= _result) ? \ | |
6693 | ((u32)(_input & _flag) * (_result / _flag)) : \ | |
6694 | ((u32)(_input & _flag) / (_flag / _result))) | |
6695 | ||
6696 | static u32 ixgbe_tx_cmd_type(struct sk_buff *skb, u32 tx_flags) | |
9a799d71 | 6697 | { |
d3d00239 | 6698 | /* set type for advanced descriptor with frame checksum insertion */ |
472148c3 AD |
6699 | u32 cmd_type = IXGBE_ADVTXD_DTYP_DATA | |
6700 | IXGBE_ADVTXD_DCMD_DEXT | | |
6701 | IXGBE_ADVTXD_DCMD_IFCS; | |
9a799d71 | 6702 | |
d3d00239 | 6703 | /* set HW vlan bit if vlan is present */ |
472148c3 AD |
6704 | cmd_type |= IXGBE_SET_FLAG(tx_flags, IXGBE_TX_FLAGS_HW_VLAN, |
6705 | IXGBE_ADVTXD_DCMD_VLE); | |
3a6a4eda | 6706 | |
d3d00239 | 6707 | /* set segmentation enable bits for TSO/FSO */ |
472148c3 AD |
6708 | cmd_type |= IXGBE_SET_FLAG(tx_flags, IXGBE_TX_FLAGS_TSO, |
6709 | IXGBE_ADVTXD_DCMD_TSE); | |
6710 | ||
6711 | /* set timestamp bit if present */ | |
6712 | cmd_type |= IXGBE_SET_FLAG(tx_flags, IXGBE_TX_FLAGS_TSTAMP, | |
6713 | IXGBE_ADVTXD_MAC_TSTAMP); | |
eacd73f7 | 6714 | |
62748b7b | 6715 | /* insert frame checksum */ |
472148c3 | 6716 | cmd_type ^= IXGBE_SET_FLAG(skb->no_fcs, 1, IXGBE_ADVTXD_DCMD_IFCS); |
62748b7b | 6717 | |
d3d00239 AD |
6718 | return cmd_type; |
6719 | } | |
9a799d71 | 6720 | |
729739b7 AD |
6721 | static void ixgbe_tx_olinfo_status(union ixgbe_adv_tx_desc *tx_desc, |
6722 | u32 tx_flags, unsigned int paylen) | |
d3d00239 | 6723 | { |
472148c3 | 6724 | u32 olinfo_status = paylen << IXGBE_ADVTXD_PAYLEN_SHIFT; |
9a799d71 | 6725 | |
d3d00239 | 6726 | /* enable L4 checksum for TSO and TX checksum offload */ |
472148c3 AD |
6727 | olinfo_status |= IXGBE_SET_FLAG(tx_flags, |
6728 | IXGBE_TX_FLAGS_CSUM, | |
6729 | IXGBE_ADVTXD_POPTS_TXSM); | |
9a799d71 | 6730 | |
93f5b3c1 | 6731 | /* enble IPv4 checksum for TSO */ |
472148c3 AD |
6732 | olinfo_status |= IXGBE_SET_FLAG(tx_flags, |
6733 | IXGBE_TX_FLAGS_IPV4, | |
6734 | IXGBE_ADVTXD_POPTS_IXSM); | |
9a799d71 | 6735 | |
7f9643fd AD |
6736 | /* |
6737 | * Check Context must be set if Tx switch is enabled, which it | |
6738 | * always is for case where virtual functions are running | |
6739 | */ | |
472148c3 AD |
6740 | olinfo_status |= IXGBE_SET_FLAG(tx_flags, |
6741 | IXGBE_TX_FLAGS_CC, | |
6742 | IXGBE_ADVTXD_CC); | |
7f9643fd | 6743 | |
472148c3 | 6744 | tx_desc->read.olinfo_status = cpu_to_le32(olinfo_status); |
d3d00239 | 6745 | } |
44df32c5 | 6746 | |
2367a173 DB |
6747 | static int __ixgbe_maybe_stop_tx(struct ixgbe_ring *tx_ring, u16 size) |
6748 | { | |
6749 | netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index); | |
6750 | ||
6751 | /* Herbert's original patch had: | |
6752 | * smp_mb__after_netif_stop_queue(); | |
6753 | * but since that doesn't exist yet, just open code it. | |
6754 | */ | |
6755 | smp_mb(); | |
6756 | ||
6757 | /* We need to check again in a case another CPU has just | |
6758 | * made room available. | |
6759 | */ | |
6760 | if (likely(ixgbe_desc_unused(tx_ring) < size)) | |
6761 | return -EBUSY; | |
6762 | ||
6763 | /* A reprieve! - use start_queue because it doesn't call schedule */ | |
6764 | netif_start_subqueue(tx_ring->netdev, tx_ring->queue_index); | |
6765 | ++tx_ring->tx_stats.restart_queue; | |
6766 | return 0; | |
6767 | } | |
6768 | ||
6769 | static inline int ixgbe_maybe_stop_tx(struct ixgbe_ring *tx_ring, u16 size) | |
6770 | { | |
6771 | if (likely(ixgbe_desc_unused(tx_ring) >= size)) | |
6772 | return 0; | |
6773 | ||
6774 | return __ixgbe_maybe_stop_tx(tx_ring, size); | |
6775 | } | |
6776 | ||
d3d00239 AD |
6777 | #define IXGBE_TXD_CMD (IXGBE_TXD_CMD_EOP | \ |
6778 | IXGBE_TXD_CMD_RS) | |
6779 | ||
6780 | static void ixgbe_tx_map(struct ixgbe_ring *tx_ring, | |
d3d00239 | 6781 | struct ixgbe_tx_buffer *first, |
d3d00239 AD |
6782 | const u8 hdr_len) |
6783 | { | |
fd0db0ed | 6784 | struct sk_buff *skb = first->skb; |
729739b7 | 6785 | struct ixgbe_tx_buffer *tx_buffer; |
d3d00239 | 6786 | union ixgbe_adv_tx_desc *tx_desc; |
ec718254 AD |
6787 | struct skb_frag_struct *frag; |
6788 | dma_addr_t dma; | |
6789 | unsigned int data_len, size; | |
244e27ad | 6790 | u32 tx_flags = first->tx_flags; |
472148c3 | 6791 | u32 cmd_type = ixgbe_tx_cmd_type(skb, tx_flags); |
d3d00239 | 6792 | u16 i = tx_ring->next_to_use; |
d3d00239 | 6793 | |
729739b7 AD |
6794 | tx_desc = IXGBE_TX_DESC(tx_ring, i); |
6795 | ||
ec718254 AD |
6796 | ixgbe_tx_olinfo_status(tx_desc, tx_flags, skb->len - hdr_len); |
6797 | ||
6798 | size = skb_headlen(skb); | |
6799 | data_len = skb->data_len; | |
729739b7 | 6800 | |
d3d00239 AD |
6801 | #ifdef IXGBE_FCOE |
6802 | if (tx_flags & IXGBE_TX_FLAGS_FCOE) { | |
729739b7 | 6803 | if (data_len < sizeof(struct fcoe_crc_eof)) { |
d3d00239 AD |
6804 | size -= sizeof(struct fcoe_crc_eof) - data_len; |
6805 | data_len = 0; | |
729739b7 AD |
6806 | } else { |
6807 | data_len -= sizeof(struct fcoe_crc_eof); | |
9a799d71 AK |
6808 | } |
6809 | } | |
44df32c5 | 6810 | |
d3d00239 | 6811 | #endif |
729739b7 | 6812 | dma = dma_map_single(tx_ring->dev, skb->data, size, DMA_TO_DEVICE); |
8ad494b0 | 6813 | |
ec718254 | 6814 | tx_buffer = first; |
9a799d71 | 6815 | |
ec718254 AD |
6816 | for (frag = &skb_shinfo(skb)->frags[0];; frag++) { |
6817 | if (dma_mapping_error(tx_ring->dev, dma)) | |
6818 | goto dma_error; | |
6819 | ||
6820 | /* record length, and DMA address */ | |
6821 | dma_unmap_len_set(tx_buffer, len, size); | |
6822 | dma_unmap_addr_set(tx_buffer, dma, dma); | |
6823 | ||
6824 | tx_desc->read.buffer_addr = cpu_to_le64(dma); | |
e5a43549 | 6825 | |
729739b7 | 6826 | while (unlikely(size > IXGBE_MAX_DATA_PER_TXD)) { |
d3d00239 | 6827 | tx_desc->read.cmd_type_len = |
472148c3 | 6828 | cpu_to_le32(cmd_type ^ IXGBE_MAX_DATA_PER_TXD); |
e5a43549 | 6829 | |
d3d00239 | 6830 | i++; |
729739b7 | 6831 | tx_desc++; |
d3d00239 | 6832 | if (i == tx_ring->count) { |
e4f74028 | 6833 | tx_desc = IXGBE_TX_DESC(tx_ring, 0); |
d3d00239 AD |
6834 | i = 0; |
6835 | } | |
ec718254 | 6836 | tx_desc->read.olinfo_status = 0; |
729739b7 AD |
6837 | |
6838 | dma += IXGBE_MAX_DATA_PER_TXD; | |
6839 | size -= IXGBE_MAX_DATA_PER_TXD; | |
6840 | ||
6841 | tx_desc->read.buffer_addr = cpu_to_le64(dma); | |
d3d00239 | 6842 | } |
e5a43549 | 6843 | |
729739b7 AD |
6844 | if (likely(!data_len)) |
6845 | break; | |
9a799d71 | 6846 | |
472148c3 | 6847 | tx_desc->read.cmd_type_len = cpu_to_le32(cmd_type ^ size); |
9a799d71 | 6848 | |
729739b7 AD |
6849 | i++; |
6850 | tx_desc++; | |
6851 | if (i == tx_ring->count) { | |
6852 | tx_desc = IXGBE_TX_DESC(tx_ring, 0); | |
6853 | i = 0; | |
6854 | } | |
ec718254 | 6855 | tx_desc->read.olinfo_status = 0; |
9a799d71 | 6856 | |
d3d00239 | 6857 | #ifdef IXGBE_FCOE |
9e903e08 | 6858 | size = min_t(unsigned int, data_len, skb_frag_size(frag)); |
d3d00239 | 6859 | #else |
9e903e08 | 6860 | size = skb_frag_size(frag); |
d3d00239 AD |
6861 | #endif |
6862 | data_len -= size; | |
9a799d71 | 6863 | |
729739b7 AD |
6864 | dma = skb_frag_dma_map(tx_ring->dev, frag, 0, size, |
6865 | DMA_TO_DEVICE); | |
9a799d71 | 6866 | |
729739b7 | 6867 | tx_buffer = &tx_ring->tx_buffer_info[i]; |
729739b7 | 6868 | } |
9a799d71 | 6869 | |
729739b7 | 6870 | /* write last descriptor with RS and EOP bits */ |
472148c3 AD |
6871 | cmd_type |= size | IXGBE_TXD_CMD; |
6872 | tx_desc->read.cmd_type_len = cpu_to_le32(cmd_type); | |
eacd73f7 | 6873 | |
091a6246 | 6874 | netdev_tx_sent_queue(txring_txq(tx_ring), first->bytecount); |
b2d96e0a | 6875 | |
d3d00239 AD |
6876 | /* set the timestamp */ |
6877 | first->time_stamp = jiffies; | |
9a799d71 AK |
6878 | |
6879 | /* | |
729739b7 AD |
6880 | * Force memory writes to complete before letting h/w know there |
6881 | * are new descriptors to fetch. (Only applicable for weak-ordered | |
6882 | * memory model archs, such as IA-64). | |
6883 | * | |
6884 | * We also need this memory barrier to make certain all of the | |
6885 | * status bits have been updated before next_to_watch is written. | |
9a799d71 AK |
6886 | */ |
6887 | wmb(); | |
6888 | ||
d3d00239 AD |
6889 | /* set next_to_watch value indicating a packet is present */ |
6890 | first->next_to_watch = tx_desc; | |
6891 | ||
729739b7 AD |
6892 | i++; |
6893 | if (i == tx_ring->count) | |
6894 | i = 0; | |
6895 | ||
6896 | tx_ring->next_to_use = i; | |
6897 | ||
2367a173 DB |
6898 | ixgbe_maybe_stop_tx(tx_ring, DESC_NEEDED); |
6899 | ||
6900 | if (netif_xmit_stopped(txring_txq(tx_ring)) || !skb->xmit_more) { | |
9c938cdd DB |
6901 | /* notify HW of packet */ |
6902 | ixgbe_write_tail(tx_ring, i); | |
6903 | } | |
2367a173 | 6904 | |
d3d00239 AD |
6905 | return; |
6906 | dma_error: | |
729739b7 | 6907 | dev_err(tx_ring->dev, "TX DMA map failed\n"); |
d3d00239 AD |
6908 | |
6909 | /* clear dma mappings for failed tx_buffer_info map */ | |
6910 | for (;;) { | |
729739b7 AD |
6911 | tx_buffer = &tx_ring->tx_buffer_info[i]; |
6912 | ixgbe_unmap_and_free_tx_resource(tx_ring, tx_buffer); | |
6913 | if (tx_buffer == first) | |
d3d00239 AD |
6914 | break; |
6915 | if (i == 0) | |
6916 | i = tx_ring->count; | |
6917 | i--; | |
6918 | } | |
6919 | ||
d3d00239 | 6920 | tx_ring->next_to_use = i; |
9a799d71 AK |
6921 | } |
6922 | ||
fd0db0ed | 6923 | static void ixgbe_atr(struct ixgbe_ring *ring, |
244e27ad | 6924 | struct ixgbe_tx_buffer *first) |
69830529 AD |
6925 | { |
6926 | struct ixgbe_q_vector *q_vector = ring->q_vector; | |
6927 | union ixgbe_atr_hash_dword input = { .dword = 0 }; | |
6928 | union ixgbe_atr_hash_dword common = { .dword = 0 }; | |
6929 | union { | |
6930 | unsigned char *network; | |
6931 | struct iphdr *ipv4; | |
6932 | struct ipv6hdr *ipv6; | |
6933 | } hdr; | |
ee9e0f0b | 6934 | struct tcphdr *th; |
905e4a41 | 6935 | __be16 vlan_id; |
c4cf55e5 | 6936 | |
69830529 AD |
6937 | /* if ring doesn't have a interrupt vector, cannot perform ATR */ |
6938 | if (!q_vector) | |
6939 | return; | |
6940 | ||
6941 | /* do nothing if sampling is disabled */ | |
6942 | if (!ring->atr_sample_rate) | |
d3ead241 | 6943 | return; |
c4cf55e5 | 6944 | |
69830529 | 6945 | ring->atr_count++; |
c4cf55e5 | 6946 | |
69830529 | 6947 | /* snag network header to get L4 type and address */ |
fd0db0ed | 6948 | hdr.network = skb_network_header(first->skb); |
69830529 AD |
6949 | |
6950 | /* Currently only IPv4/IPv6 with TCP is supported */ | |
a1108ffd | 6951 | if ((first->protocol != htons(ETH_P_IPV6) || |
69830529 | 6952 | hdr.ipv6->nexthdr != IPPROTO_TCP) && |
a1108ffd | 6953 | (first->protocol != htons(ETH_P_IP) || |
69830529 AD |
6954 | hdr.ipv4->protocol != IPPROTO_TCP)) |
6955 | return; | |
ee9e0f0b | 6956 | |
fd0db0ed | 6957 | th = tcp_hdr(first->skb); |
c4cf55e5 | 6958 | |
66f32a8b AD |
6959 | /* skip this packet since it is invalid or the socket is closing */ |
6960 | if (!th || th->fin) | |
69830529 AD |
6961 | return; |
6962 | ||
6963 | /* sample on all syn packets or once every atr sample count */ | |
6964 | if (!th->syn && (ring->atr_count < ring->atr_sample_rate)) | |
6965 | return; | |
6966 | ||
6967 | /* reset sample count */ | |
6968 | ring->atr_count = 0; | |
6969 | ||
244e27ad | 6970 | vlan_id = htons(first->tx_flags >> IXGBE_TX_FLAGS_VLAN_SHIFT); |
69830529 AD |
6971 | |
6972 | /* | |
6973 | * src and dst are inverted, think how the receiver sees them | |
6974 | * | |
6975 | * The input is broken into two sections, a non-compressed section | |
6976 | * containing vm_pool, vlan_id, and flow_type. The rest of the data | |
6977 | * is XORed together and stored in the compressed dword. | |
6978 | */ | |
6979 | input.formatted.vlan_id = vlan_id; | |
6980 | ||
6981 | /* | |
6982 | * since src port and flex bytes occupy the same word XOR them together | |
6983 | * and write the value to source port portion of compressed dword | |
6984 | */ | |
244e27ad | 6985 | if (first->tx_flags & (IXGBE_TX_FLAGS_SW_VLAN | IXGBE_TX_FLAGS_HW_VLAN)) |
a1108ffd | 6986 | common.port.src ^= th->dest ^ htons(ETH_P_8021Q); |
69830529 | 6987 | else |
244e27ad | 6988 | common.port.src ^= th->dest ^ first->protocol; |
69830529 AD |
6989 | common.port.dst ^= th->source; |
6990 | ||
a1108ffd | 6991 | if (first->protocol == htons(ETH_P_IP)) { |
69830529 AD |
6992 | input.formatted.flow_type = IXGBE_ATR_FLOW_TYPE_TCPV4; |
6993 | common.ip ^= hdr.ipv4->saddr ^ hdr.ipv4->daddr; | |
6994 | } else { | |
6995 | input.formatted.flow_type = IXGBE_ATR_FLOW_TYPE_TCPV6; | |
6996 | common.ip ^= hdr.ipv6->saddr.s6_addr32[0] ^ | |
6997 | hdr.ipv6->saddr.s6_addr32[1] ^ | |
6998 | hdr.ipv6->saddr.s6_addr32[2] ^ | |
6999 | hdr.ipv6->saddr.s6_addr32[3] ^ | |
7000 | hdr.ipv6->daddr.s6_addr32[0] ^ | |
7001 | hdr.ipv6->daddr.s6_addr32[1] ^ | |
7002 | hdr.ipv6->daddr.s6_addr32[2] ^ | |
7003 | hdr.ipv6->daddr.s6_addr32[3]; | |
7004 | } | |
c4cf55e5 PWJ |
7005 | |
7006 | /* This assumes the Rx queue and Tx queue are bound to the same CPU */ | |
69830529 AD |
7007 | ixgbe_fdir_add_signature_filter_82599(&q_vector->adapter->hw, |
7008 | input, common, ring->queue_index); | |
c4cf55e5 PWJ |
7009 | } |
7010 | ||
f663dd9a | 7011 | static u16 ixgbe_select_queue(struct net_device *dev, struct sk_buff *skb, |
99932d4f | 7012 | void *accel_priv, select_queue_fallback_t fallback) |
09a3b1f8 | 7013 | { |
f663dd9a JW |
7014 | struct ixgbe_fwd_adapter *fwd_adapter = accel_priv; |
7015 | #ifdef IXGBE_FCOE | |
97488bd1 AD |
7016 | struct ixgbe_adapter *adapter; |
7017 | struct ixgbe_ring_feature *f; | |
7018 | int txq; | |
f663dd9a JW |
7019 | #endif |
7020 | ||
7021 | if (fwd_adapter) | |
7022 | return skb->queue_mapping + fwd_adapter->tx_base_queue; | |
7023 | ||
7024 | #ifdef IXGBE_FCOE | |
5e09a105 | 7025 | |
97488bd1 AD |
7026 | /* |
7027 | * only execute the code below if protocol is FCoE | |
7028 | * or FIP and we have FCoE enabled on the adapter | |
7029 | */ | |
7030 | switch (vlan_get_protocol(skb)) { | |
a1108ffd JP |
7031 | case htons(ETH_P_FCOE): |
7032 | case htons(ETH_P_FIP): | |
97488bd1 | 7033 | adapter = netdev_priv(dev); |
c087663e | 7034 | |
97488bd1 AD |
7035 | if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) |
7036 | break; | |
7037 | default: | |
99932d4f | 7038 | return fallback(dev, skb); |
97488bd1 | 7039 | } |
c087663e | 7040 | |
97488bd1 | 7041 | f = &adapter->ring_feature[RING_F_FCOE]; |
c087663e | 7042 | |
97488bd1 AD |
7043 | txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : |
7044 | smp_processor_id(); | |
56075a98 | 7045 | |
97488bd1 AD |
7046 | while (txq >= f->indices) |
7047 | txq -= f->indices; | |
c4cf55e5 | 7048 | |
97488bd1 | 7049 | return txq + f->offset; |
f663dd9a | 7050 | #else |
99932d4f | 7051 | return fallback(dev, skb); |
f663dd9a | 7052 | #endif |
09a3b1f8 SH |
7053 | } |
7054 | ||
fc77dc3c | 7055 | netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb, |
84418e3b AD |
7056 | struct ixgbe_adapter *adapter, |
7057 | struct ixgbe_ring *tx_ring) | |
9a799d71 | 7058 | { |
d3d00239 | 7059 | struct ixgbe_tx_buffer *first; |
5f715823 | 7060 | int tso; |
d3d00239 | 7061 | u32 tx_flags = 0; |
a535c30e | 7062 | unsigned short f; |
a535c30e | 7063 | u16 count = TXD_USE_COUNT(skb_headlen(skb)); |
66f32a8b | 7064 | __be16 protocol = skb->protocol; |
63544e9c | 7065 | u8 hdr_len = 0; |
5e09a105 | 7066 | |
a535c30e AD |
7067 | /* |
7068 | * need: 1 descriptor per page * PAGE_SIZE/IXGBE_MAX_DATA_PER_TXD, | |
24ddd967 | 7069 | * + 1 desc for skb_headlen/IXGBE_MAX_DATA_PER_TXD, |
a535c30e AD |
7070 | * + 2 desc gap to keep tail from touching head, |
7071 | * + 1 desc for context descriptor, | |
7072 | * otherwise try next time | |
7073 | */ | |
a535c30e AD |
7074 | for (f = 0; f < skb_shinfo(skb)->nr_frags; f++) |
7075 | count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size); | |
7f66162b | 7076 | |
a535c30e AD |
7077 | if (ixgbe_maybe_stop_tx(tx_ring, count + 3)) { |
7078 | tx_ring->tx_stats.tx_busy++; | |
7079 | return NETDEV_TX_BUSY; | |
7080 | } | |
7081 | ||
fd0db0ed AD |
7082 | /* record the location of the first descriptor for this packet */ |
7083 | first = &tx_ring->tx_buffer_info[tx_ring->next_to_use]; | |
7084 | first->skb = skb; | |
091a6246 AD |
7085 | first->bytecount = skb->len; |
7086 | first->gso_segs = 1; | |
fd0db0ed | 7087 | |
66f32a8b | 7088 | /* if we have a HW VLAN tag being added default to the HW one */ |
eab6d18d | 7089 | if (vlan_tx_tag_present(skb)) { |
66f32a8b AD |
7090 | tx_flags |= vlan_tx_tag_get(skb) << IXGBE_TX_FLAGS_VLAN_SHIFT; |
7091 | tx_flags |= IXGBE_TX_FLAGS_HW_VLAN; | |
7092 | /* else if it is a SW VLAN check the next protocol and store the tag */ | |
a1108ffd | 7093 | } else if (protocol == htons(ETH_P_8021Q)) { |
66f32a8b AD |
7094 | struct vlan_hdr *vhdr, _vhdr; |
7095 | vhdr = skb_header_pointer(skb, ETH_HLEN, sizeof(_vhdr), &_vhdr); | |
7096 | if (!vhdr) | |
7097 | goto out_drop; | |
7098 | ||
7099 | protocol = vhdr->h_vlan_encapsulated_proto; | |
9e0c5648 AD |
7100 | tx_flags |= ntohs(vhdr->h_vlan_TCI) << |
7101 | IXGBE_TX_FLAGS_VLAN_SHIFT; | |
66f32a8b AD |
7102 | tx_flags |= IXGBE_TX_FLAGS_SW_VLAN; |
7103 | } | |
7104 | ||
d5234933 MR |
7105 | if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) && |
7106 | adapter->ptp_clock && | |
7107 | !test_and_set_bit_lock(__IXGBE_PTP_TX_IN_PROGRESS, | |
7108 | &adapter->state)) { | |
3a6a4eda JK |
7109 | skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; |
7110 | tx_flags |= IXGBE_TX_FLAGS_TSTAMP; | |
891dc082 JK |
7111 | |
7112 | /* schedule check for Tx timestamp */ | |
7113 | adapter->ptp_tx_skb = skb_get(skb); | |
7114 | adapter->ptp_tx_start = jiffies; | |
7115 | schedule_work(&adapter->ptp_tx_work); | |
3a6a4eda | 7116 | } |
3a6a4eda | 7117 | |
ff29a86e JK |
7118 | skb_tx_timestamp(skb); |
7119 | ||
9e0c5648 AD |
7120 | #ifdef CONFIG_PCI_IOV |
7121 | /* | |
7122 | * Use the l2switch_enable flag - would be false if the DMA | |
7123 | * Tx switch had been disabled. | |
7124 | */ | |
7125 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
472148c3 | 7126 | tx_flags |= IXGBE_TX_FLAGS_CC; |
9e0c5648 AD |
7127 | |
7128 | #endif | |
32701dc2 | 7129 | /* DCB maps skb priorities 0-7 onto 3 bit PCP of VLAN tag. */ |
66f32a8b | 7130 | if ((adapter->flags & IXGBE_FLAG_DCB_ENABLED) && |
09dca476 AD |
7131 | ((tx_flags & (IXGBE_TX_FLAGS_HW_VLAN | IXGBE_TX_FLAGS_SW_VLAN)) || |
7132 | (skb->priority != TC_PRIO_CONTROL))) { | |
66f32a8b | 7133 | tx_flags &= ~IXGBE_TX_FLAGS_VLAN_PRIO_MASK; |
32701dc2 JF |
7134 | tx_flags |= (skb->priority & 0x7) << |
7135 | IXGBE_TX_FLAGS_VLAN_PRIO_SHIFT; | |
66f32a8b AD |
7136 | if (tx_flags & IXGBE_TX_FLAGS_SW_VLAN) { |
7137 | struct vlan_ethhdr *vhdr; | |
2049e1f6 FR |
7138 | |
7139 | if (skb_cow_head(skb, 0)) | |
66f32a8b AD |
7140 | goto out_drop; |
7141 | vhdr = (struct vlan_ethhdr *)skb->data; | |
7142 | vhdr->h_vlan_TCI = htons(tx_flags >> | |
7143 | IXGBE_TX_FLAGS_VLAN_SHIFT); | |
7144 | } else { | |
7145 | tx_flags |= IXGBE_TX_FLAGS_HW_VLAN; | |
2f90b865 | 7146 | } |
9a799d71 | 7147 | } |
eacd73f7 | 7148 | |
244e27ad AD |
7149 | /* record initial flags and protocol */ |
7150 | first->tx_flags = tx_flags; | |
7151 | first->protocol = protocol; | |
7152 | ||
eacd73f7 | 7153 | #ifdef IXGBE_FCOE |
66f32a8b | 7154 | /* setup tx offload for FCoE */ |
a1108ffd | 7155 | if ((protocol == htons(ETH_P_FCOE)) && |
a58915c7 | 7156 | (tx_ring->netdev->features & (NETIF_F_FSO | NETIF_F_FCOE_CRC))) { |
244e27ad | 7157 | tso = ixgbe_fso(tx_ring, first, &hdr_len); |
897ab156 AD |
7158 | if (tso < 0) |
7159 | goto out_drop; | |
9a799d71 | 7160 | |
66f32a8b | 7161 | goto xmit_fcoe; |
eacd73f7 | 7162 | } |
9a799d71 | 7163 | |
66f32a8b | 7164 | #endif /* IXGBE_FCOE */ |
244e27ad | 7165 | tso = ixgbe_tso(tx_ring, first, &hdr_len); |
66f32a8b | 7166 | if (tso < 0) |
897ab156 | 7167 | goto out_drop; |
244e27ad AD |
7168 | else if (!tso) |
7169 | ixgbe_tx_csum(tx_ring, first); | |
66f32a8b AD |
7170 | |
7171 | /* add the ATR filter if ATR is on */ | |
7172 | if (test_bit(__IXGBE_TX_FDIR_INIT_DONE, &tx_ring->state)) | |
244e27ad | 7173 | ixgbe_atr(tx_ring, first); |
66f32a8b AD |
7174 | |
7175 | #ifdef IXGBE_FCOE | |
7176 | xmit_fcoe: | |
7177 | #endif /* IXGBE_FCOE */ | |
244e27ad | 7178 | ixgbe_tx_map(tx_ring, first, hdr_len); |
d3d00239 | 7179 | |
9a799d71 | 7180 | return NETDEV_TX_OK; |
897ab156 AD |
7181 | |
7182 | out_drop: | |
fd0db0ed AD |
7183 | dev_kfree_skb_any(first->skb); |
7184 | first->skb = NULL; | |
7185 | ||
897ab156 | 7186 | return NETDEV_TX_OK; |
9a799d71 AK |
7187 | } |
7188 | ||
2a47fa45 JF |
7189 | static netdev_tx_t __ixgbe_xmit_frame(struct sk_buff *skb, |
7190 | struct net_device *netdev, | |
7191 | struct ixgbe_ring *ring) | |
84418e3b AD |
7192 | { |
7193 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7194 | struct ixgbe_ring *tx_ring; | |
7195 | ||
a50c29dd AD |
7196 | /* |
7197 | * The minimum packet size for olinfo paylen is 17 so pad the skb | |
7198 | * in order to meet this minimum size requirement. | |
7199 | */ | |
f73332fc SH |
7200 | if (unlikely(skb->len < 17)) { |
7201 | if (skb_pad(skb, 17 - skb->len)) | |
a50c29dd AD |
7202 | return NETDEV_TX_OK; |
7203 | skb->len = 17; | |
71a49f77 | 7204 | skb_set_tail_pointer(skb, 17); |
a50c29dd AD |
7205 | } |
7206 | ||
2a47fa45 JF |
7207 | tx_ring = ring ? ring : adapter->tx_ring[skb->queue_mapping]; |
7208 | ||
fc77dc3c | 7209 | return ixgbe_xmit_frame_ring(skb, adapter, tx_ring); |
84418e3b AD |
7210 | } |
7211 | ||
2a47fa45 JF |
7212 | static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb, |
7213 | struct net_device *netdev) | |
7214 | { | |
7215 | return __ixgbe_xmit_frame(skb, netdev, NULL); | |
7216 | } | |
7217 | ||
9a799d71 AK |
7218 | /** |
7219 | * ixgbe_set_mac - Change the Ethernet Address of the NIC | |
7220 | * @netdev: network interface device structure | |
7221 | * @p: pointer to an address structure | |
7222 | * | |
7223 | * Returns 0 on success, negative on failure | |
7224 | **/ | |
7225 | static int ixgbe_set_mac(struct net_device *netdev, void *p) | |
7226 | { | |
7227 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
b4617240 | 7228 | struct ixgbe_hw *hw = &adapter->hw; |
9a799d71 | 7229 | struct sockaddr *addr = p; |
5d7daa35 | 7230 | int ret; |
9a799d71 AK |
7231 | |
7232 | if (!is_valid_ether_addr(addr->sa_data)) | |
7233 | return -EADDRNOTAVAIL; | |
7234 | ||
5d7daa35 | 7235 | ixgbe_del_mac_filter(adapter, hw->mac.addr, VMDQ_P(0)); |
9a799d71 | 7236 | memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); |
b4617240 | 7237 | memcpy(hw->mac.addr, addr->sa_data, netdev->addr_len); |
9a799d71 | 7238 | |
5d7daa35 JK |
7239 | ret = ixgbe_add_mac_filter(adapter, hw->mac.addr, VMDQ_P(0)); |
7240 | return ret > 0 ? 0 : ret; | |
9a799d71 AK |
7241 | } |
7242 | ||
6b73e10d BH |
7243 | static int |
7244 | ixgbe_mdio_read(struct net_device *netdev, int prtad, int devad, u16 addr) | |
7245 | { | |
7246 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7247 | struct ixgbe_hw *hw = &adapter->hw; | |
7248 | u16 value; | |
7249 | int rc; | |
7250 | ||
7251 | if (prtad != hw->phy.mdio.prtad) | |
7252 | return -EINVAL; | |
7253 | rc = hw->phy.ops.read_reg(hw, addr, devad, &value); | |
7254 | if (!rc) | |
7255 | rc = value; | |
7256 | return rc; | |
7257 | } | |
7258 | ||
7259 | static int ixgbe_mdio_write(struct net_device *netdev, int prtad, int devad, | |
7260 | u16 addr, u16 value) | |
7261 | { | |
7262 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7263 | struct ixgbe_hw *hw = &adapter->hw; | |
7264 | ||
7265 | if (prtad != hw->phy.mdio.prtad) | |
7266 | return -EINVAL; | |
7267 | return hw->phy.ops.write_reg(hw, addr, devad, value); | |
7268 | } | |
7269 | ||
7270 | static int ixgbe_ioctl(struct net_device *netdev, struct ifreq *req, int cmd) | |
7271 | { | |
7272 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7273 | ||
3a6a4eda | 7274 | switch (cmd) { |
3a6a4eda | 7275 | case SIOCSHWTSTAMP: |
93501d48 JK |
7276 | return ixgbe_ptp_set_ts_config(adapter, req); |
7277 | case SIOCGHWTSTAMP: | |
7278 | return ixgbe_ptp_get_ts_config(adapter, req); | |
3a6a4eda JK |
7279 | default: |
7280 | return mdio_mii_ioctl(&adapter->hw.phy.mdio, if_mii(req), cmd); | |
7281 | } | |
6b73e10d BH |
7282 | } |
7283 | ||
0365e6e4 PW |
7284 | /** |
7285 | * ixgbe_add_sanmac_netdev - Add the SAN MAC address to the corresponding | |
31278e71 | 7286 | * netdev->dev_addrs |
0365e6e4 PW |
7287 | * @netdev: network interface device structure |
7288 | * | |
7289 | * Returns non-zero on failure | |
7290 | **/ | |
7291 | static int ixgbe_add_sanmac_netdev(struct net_device *dev) | |
7292 | { | |
7293 | int err = 0; | |
7294 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
7fa7c9dc | 7295 | struct ixgbe_hw *hw = &adapter->hw; |
0365e6e4 | 7296 | |
7fa7c9dc | 7297 | if (is_valid_ether_addr(hw->mac.san_addr)) { |
0365e6e4 | 7298 | rtnl_lock(); |
7fa7c9dc | 7299 | err = dev_addr_add(dev, hw->mac.san_addr, NETDEV_HW_ADDR_T_SAN); |
0365e6e4 | 7300 | rtnl_unlock(); |
7fa7c9dc AD |
7301 | |
7302 | /* update SAN MAC vmdq pool selection */ | |
7303 | hw->mac.ops.set_vmdq_san_mac(hw, VMDQ_P(0)); | |
0365e6e4 PW |
7304 | } |
7305 | return err; | |
7306 | } | |
7307 | ||
7308 | /** | |
7309 | * ixgbe_del_sanmac_netdev - Removes the SAN MAC address to the corresponding | |
31278e71 | 7310 | * netdev->dev_addrs |
0365e6e4 PW |
7311 | * @netdev: network interface device structure |
7312 | * | |
7313 | * Returns non-zero on failure | |
7314 | **/ | |
7315 | static int ixgbe_del_sanmac_netdev(struct net_device *dev) | |
7316 | { | |
7317 | int err = 0; | |
7318 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
7319 | struct ixgbe_mac_info *mac = &adapter->hw.mac; | |
7320 | ||
7321 | if (is_valid_ether_addr(mac->san_addr)) { | |
7322 | rtnl_lock(); | |
7323 | err = dev_addr_del(dev, mac->san_addr, NETDEV_HW_ADDR_T_SAN); | |
7324 | rtnl_unlock(); | |
7325 | } | |
7326 | return err; | |
7327 | } | |
7328 | ||
9a799d71 AK |
7329 | #ifdef CONFIG_NET_POLL_CONTROLLER |
7330 | /* | |
7331 | * Polling 'interrupt' - used by things like netconsole to send skbs | |
7332 | * without having to re-enable interrupts. It's not called while | |
7333 | * the interrupt routine is executing. | |
7334 | */ | |
7335 | static void ixgbe_netpoll(struct net_device *netdev) | |
7336 | { | |
7337 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
8f9a7167 | 7338 | int i; |
9a799d71 | 7339 | |
1a647bd2 AD |
7340 | /* if interface is down do nothing */ |
7341 | if (test_bit(__IXGBE_DOWN, &adapter->state)) | |
7342 | return; | |
7343 | ||
9a799d71 | 7344 | adapter->flags |= IXGBE_FLAG_IN_NETPOLL; |
8f9a7167 | 7345 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
49c7ffbe AD |
7346 | for (i = 0; i < adapter->num_q_vectors; i++) |
7347 | ixgbe_msix_clean_rings(0, adapter->q_vector[i]); | |
8f9a7167 PWJ |
7348 | } else { |
7349 | ixgbe_intr(adapter->pdev->irq, netdev); | |
7350 | } | |
9a799d71 | 7351 | adapter->flags &= ~IXGBE_FLAG_IN_NETPOLL; |
9a799d71 | 7352 | } |
9a799d71 | 7353 | |
581330ba | 7354 | #endif |
de1036b1 ED |
7355 | static struct rtnl_link_stats64 *ixgbe_get_stats64(struct net_device *netdev, |
7356 | struct rtnl_link_stats64 *stats) | |
7357 | { | |
7358 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7359 | int i; | |
7360 | ||
1a51502b | 7361 | rcu_read_lock(); |
de1036b1 | 7362 | for (i = 0; i < adapter->num_rx_queues; i++) { |
1a51502b | 7363 | struct ixgbe_ring *ring = ACCESS_ONCE(adapter->rx_ring[i]); |
de1036b1 ED |
7364 | u64 bytes, packets; |
7365 | unsigned int start; | |
7366 | ||
1a51502b ED |
7367 | if (ring) { |
7368 | do { | |
57a7744e | 7369 | start = u64_stats_fetch_begin_irq(&ring->syncp); |
1a51502b ED |
7370 | packets = ring->stats.packets; |
7371 | bytes = ring->stats.bytes; | |
57a7744e | 7372 | } while (u64_stats_fetch_retry_irq(&ring->syncp, start)); |
1a51502b ED |
7373 | stats->rx_packets += packets; |
7374 | stats->rx_bytes += bytes; | |
7375 | } | |
de1036b1 | 7376 | } |
1ac9ad13 ED |
7377 | |
7378 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
7379 | struct ixgbe_ring *ring = ACCESS_ONCE(adapter->tx_ring[i]); | |
7380 | u64 bytes, packets; | |
7381 | unsigned int start; | |
7382 | ||
7383 | if (ring) { | |
7384 | do { | |
57a7744e | 7385 | start = u64_stats_fetch_begin_irq(&ring->syncp); |
1ac9ad13 ED |
7386 | packets = ring->stats.packets; |
7387 | bytes = ring->stats.bytes; | |
57a7744e | 7388 | } while (u64_stats_fetch_retry_irq(&ring->syncp, start)); |
1ac9ad13 ED |
7389 | stats->tx_packets += packets; |
7390 | stats->tx_bytes += bytes; | |
7391 | } | |
7392 | } | |
1a51502b | 7393 | rcu_read_unlock(); |
de1036b1 ED |
7394 | /* following stats updated by ixgbe_watchdog_task() */ |
7395 | stats->multicast = netdev->stats.multicast; | |
7396 | stats->rx_errors = netdev->stats.rx_errors; | |
7397 | stats->rx_length_errors = netdev->stats.rx_length_errors; | |
7398 | stats->rx_crc_errors = netdev->stats.rx_crc_errors; | |
7399 | stats->rx_missed_errors = netdev->stats.rx_missed_errors; | |
7400 | return stats; | |
7401 | } | |
7402 | ||
8af3c33f | 7403 | #ifdef CONFIG_IXGBE_DCB |
49ce9c2c BH |
7404 | /** |
7405 | * ixgbe_validate_rtr - verify 802.1Qp to Rx packet buffer mapping is valid. | |
7406 | * @adapter: pointer to ixgbe_adapter | |
8b1c0b24 JF |
7407 | * @tc: number of traffic classes currently enabled |
7408 | * | |
7409 | * Configure a valid 802.1Qp to Rx packet buffer mapping ie confirm | |
7410 | * 802.1Q priority maps to a packet buffer that exists. | |
7411 | */ | |
7412 | static void ixgbe_validate_rtr(struct ixgbe_adapter *adapter, u8 tc) | |
7413 | { | |
7414 | struct ixgbe_hw *hw = &adapter->hw; | |
7415 | u32 reg, rsave; | |
7416 | int i; | |
7417 | ||
7418 | /* 82598 have a static priority to TC mapping that can not | |
7419 | * be changed so no validation is needed. | |
7420 | */ | |
7421 | if (hw->mac.type == ixgbe_mac_82598EB) | |
7422 | return; | |
7423 | ||
7424 | reg = IXGBE_READ_REG(hw, IXGBE_RTRUP2TC); | |
7425 | rsave = reg; | |
7426 | ||
7427 | for (i = 0; i < MAX_TRAFFIC_CLASS; i++) { | |
7428 | u8 up2tc = reg >> (i * IXGBE_RTRUP2TC_UP_SHIFT); | |
7429 | ||
7430 | /* If up2tc is out of bounds default to zero */ | |
7431 | if (up2tc > tc) | |
7432 | reg &= ~(0x7 << IXGBE_RTRUP2TC_UP_SHIFT); | |
7433 | } | |
7434 | ||
7435 | if (reg != rsave) | |
7436 | IXGBE_WRITE_REG(hw, IXGBE_RTRUP2TC, reg); | |
7437 | ||
7438 | return; | |
7439 | } | |
7440 | ||
02debdc9 AD |
7441 | /** |
7442 | * ixgbe_set_prio_tc_map - Configure netdev prio tc map | |
7443 | * @adapter: Pointer to adapter struct | |
7444 | * | |
7445 | * Populate the netdev user priority to tc map | |
7446 | */ | |
7447 | static void ixgbe_set_prio_tc_map(struct ixgbe_adapter *adapter) | |
7448 | { | |
7449 | struct net_device *dev = adapter->netdev; | |
7450 | struct ixgbe_dcb_config *dcb_cfg = &adapter->dcb_cfg; | |
7451 | struct ieee_ets *ets = adapter->ixgbe_ieee_ets; | |
7452 | u8 prio; | |
7453 | ||
7454 | for (prio = 0; prio < MAX_USER_PRIORITY; prio++) { | |
7455 | u8 tc = 0; | |
7456 | ||
7457 | if (adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE) | |
7458 | tc = ixgbe_dcb_get_tc_from_up(dcb_cfg, 0, prio); | |
7459 | else if (ets) | |
7460 | tc = ets->prio_tc[prio]; | |
7461 | ||
7462 | netdev_set_prio_tc_map(dev, prio, tc); | |
7463 | } | |
7464 | } | |
7465 | ||
cca73c59 | 7466 | #endif /* CONFIG_IXGBE_DCB */ |
49ce9c2c BH |
7467 | /** |
7468 | * ixgbe_setup_tc - configure net_device for multiple traffic classes | |
8b1c0b24 JF |
7469 | * |
7470 | * @netdev: net device to configure | |
7471 | * @tc: number of traffic classes to enable | |
7472 | */ | |
7473 | int ixgbe_setup_tc(struct net_device *dev, u8 tc) | |
7474 | { | |
8b1c0b24 JF |
7475 | struct ixgbe_adapter *adapter = netdev_priv(dev); |
7476 | struct ixgbe_hw *hw = &adapter->hw; | |
2a47fa45 | 7477 | bool pools; |
8b1c0b24 | 7478 | |
8b1c0b24 | 7479 | /* Hardware supports up to 8 traffic classes */ |
4de2a022 | 7480 | if (tc > adapter->dcb_cfg.num_tcs.pg_tcs || |
581330ba AD |
7481 | (hw->mac.type == ixgbe_mac_82598EB && |
7482 | tc < MAX_TRAFFIC_CLASS)) | |
8b1c0b24 JF |
7483 | return -EINVAL; |
7484 | ||
2a47fa45 JF |
7485 | pools = (find_first_zero_bit(&adapter->fwd_bitmask, 32) > 1); |
7486 | if (tc && pools && adapter->num_rx_pools > IXGBE_MAX_DCBMACVLANS) | |
7487 | return -EBUSY; | |
7488 | ||
8b1c0b24 | 7489 | /* Hardware has to reinitialize queues and interrupts to |
52f33af8 | 7490 | * match packet buffer alignment. Unfortunately, the |
8b1c0b24 JF |
7491 | * hardware is not flexible enough to do this dynamically. |
7492 | */ | |
7493 | if (netif_running(dev)) | |
7494 | ixgbe_close(dev); | |
7495 | ixgbe_clear_interrupt_scheme(adapter); | |
7496 | ||
cca73c59 | 7497 | #ifdef CONFIG_IXGBE_DCB |
e7589eab | 7498 | if (tc) { |
8b1c0b24 | 7499 | netdev_set_num_tc(dev, tc); |
02debdc9 AD |
7500 | ixgbe_set_prio_tc_map(adapter); |
7501 | ||
e7589eab | 7502 | adapter->flags |= IXGBE_FLAG_DCB_ENABLED; |
e7589eab | 7503 | |
943561d3 AD |
7504 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
7505 | adapter->last_lfc_mode = adapter->hw.fc.requested_mode; | |
e7589eab | 7506 | adapter->hw.fc.requested_mode = ixgbe_fc_none; |
943561d3 | 7507 | } |
e7589eab | 7508 | } else { |
8b1c0b24 | 7509 | netdev_reset_tc(dev); |
02debdc9 | 7510 | |
943561d3 AD |
7511 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) |
7512 | adapter->hw.fc.requested_mode = adapter->last_lfc_mode; | |
e7589eab JF |
7513 | |
7514 | adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED; | |
e7589eab JF |
7515 | |
7516 | adapter->temp_dcb_cfg.pfc_mode_enable = false; | |
7517 | adapter->dcb_cfg.pfc_mode_enable = false; | |
7518 | } | |
7519 | ||
8b1c0b24 | 7520 | ixgbe_validate_rtr(adapter, tc); |
cca73c59 AD |
7521 | |
7522 | #endif /* CONFIG_IXGBE_DCB */ | |
7523 | ixgbe_init_interrupt_scheme(adapter); | |
7524 | ||
8b1c0b24 | 7525 | if (netif_running(dev)) |
cca73c59 | 7526 | return ixgbe_open(dev); |
8b1c0b24 JF |
7527 | |
7528 | return 0; | |
7529 | } | |
de1036b1 | 7530 | |
da36b647 GR |
7531 | #ifdef CONFIG_PCI_IOV |
7532 | void ixgbe_sriov_reinit(struct ixgbe_adapter *adapter) | |
7533 | { | |
7534 | struct net_device *netdev = adapter->netdev; | |
7535 | ||
7536 | rtnl_lock(); | |
da36b647 | 7537 | ixgbe_setup_tc(netdev, netdev_get_num_tc(netdev)); |
da36b647 GR |
7538 | rtnl_unlock(); |
7539 | } | |
7540 | ||
7541 | #endif | |
082757af DS |
7542 | void ixgbe_do_reset(struct net_device *netdev) |
7543 | { | |
7544 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7545 | ||
7546 | if (netif_running(netdev)) | |
7547 | ixgbe_reinit_locked(adapter); | |
7548 | else | |
7549 | ixgbe_reset(adapter); | |
7550 | } | |
7551 | ||
c8f44aff | 7552 | static netdev_features_t ixgbe_fix_features(struct net_device *netdev, |
567d2de2 | 7553 | netdev_features_t features) |
082757af DS |
7554 | { |
7555 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7556 | ||
082757af | 7557 | /* If Rx checksum is disabled, then RSC/LRO should also be disabled */ |
567d2de2 AD |
7558 | if (!(features & NETIF_F_RXCSUM)) |
7559 | features &= ~NETIF_F_LRO; | |
082757af | 7560 | |
567d2de2 AD |
7561 | /* Turn off LRO if not RSC capable */ |
7562 | if (!(adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE)) | |
7563 | features &= ~NETIF_F_LRO; | |
8e2813f5 | 7564 | |
567d2de2 | 7565 | return features; |
082757af DS |
7566 | } |
7567 | ||
c8f44aff | 7568 | static int ixgbe_set_features(struct net_device *netdev, |
567d2de2 | 7569 | netdev_features_t features) |
082757af DS |
7570 | { |
7571 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
567d2de2 | 7572 | netdev_features_t changed = netdev->features ^ features; |
082757af DS |
7573 | bool need_reset = false; |
7574 | ||
082757af | 7575 | /* Make sure RSC matches LRO, reset if change */ |
567d2de2 AD |
7576 | if (!(features & NETIF_F_LRO)) { |
7577 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) | |
082757af | 7578 | need_reset = true; |
567d2de2 AD |
7579 | adapter->flags2 &= ~IXGBE_FLAG2_RSC_ENABLED; |
7580 | } else if ((adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE) && | |
7581 | !(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED)) { | |
7582 | if (adapter->rx_itr_setting == 1 || | |
7583 | adapter->rx_itr_setting > IXGBE_MIN_RSC_ITR) { | |
7584 | adapter->flags2 |= IXGBE_FLAG2_RSC_ENABLED; | |
7585 | need_reset = true; | |
7586 | } else if ((changed ^ features) & NETIF_F_LRO) { | |
7587 | e_info(probe, "rx-usecs set too low, " | |
7588 | "disabling RSC\n"); | |
082757af DS |
7589 | } |
7590 | } | |
7591 | ||
7592 | /* | |
7593 | * Check if Flow Director n-tuple support was enabled or disabled. If | |
7594 | * the state changed, we need to reset. | |
7595 | */ | |
39cb681b AD |
7596 | switch (features & NETIF_F_NTUPLE) { |
7597 | case NETIF_F_NTUPLE: | |
567d2de2 | 7598 | /* turn off ATR, enable perfect filters and reset */ |
39cb681b AD |
7599 | if (!(adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)) |
7600 | need_reset = true; | |
7601 | ||
567d2de2 AD |
7602 | adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE; |
7603 | adapter->flags |= IXGBE_FLAG_FDIR_PERFECT_CAPABLE; | |
39cb681b AD |
7604 | break; |
7605 | default: | |
7606 | /* turn off perfect filters, enable ATR and reset */ | |
7607 | if (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) | |
7608 | need_reset = true; | |
7609 | ||
7610 | adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE; | |
7611 | ||
7612 | /* We cannot enable ATR if SR-IOV is enabled */ | |
7613 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
7614 | break; | |
7615 | ||
7616 | /* We cannot enable ATR if we have 2 or more traffic classes */ | |
7617 | if (netdev_get_num_tc(netdev) > 1) | |
7618 | break; | |
7619 | ||
7620 | /* We cannot enable ATR if RSS is disabled */ | |
7621 | if (adapter->ring_feature[RING_F_RSS].limit <= 1) | |
7622 | break; | |
7623 | ||
7624 | /* A sample rate of 0 indicates ATR disabled */ | |
7625 | if (!adapter->atr_sample_rate) | |
7626 | break; | |
7627 | ||
7628 | adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE; | |
7629 | break; | |
082757af DS |
7630 | } |
7631 | ||
f646968f | 7632 | if (features & NETIF_F_HW_VLAN_CTAG_RX) |
146d4cc9 JF |
7633 | ixgbe_vlan_strip_enable(adapter); |
7634 | else | |
7635 | ixgbe_vlan_strip_disable(adapter); | |
7636 | ||
3f2d1c0f BG |
7637 | if (changed & NETIF_F_RXALL) |
7638 | need_reset = true; | |
7639 | ||
567d2de2 | 7640 | netdev->features = features; |
082757af DS |
7641 | if (need_reset) |
7642 | ixgbe_do_reset(netdev); | |
7643 | ||
7644 | return 0; | |
082757af DS |
7645 | } |
7646 | ||
edc7d573 | 7647 | static int ixgbe_ndo_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], |
0f4b0add | 7648 | struct net_device *dev, |
6b6e2725 | 7649 | const unsigned char *addr, |
0f4b0add JF |
7650 | u16 flags) |
7651 | { | |
bcfd3432 | 7652 | /* guarantee we can provide a unique filter for the unicast address */ |
46acc460 | 7653 | if (is_unicast_ether_addr(addr) || is_link_local_ether_addr(addr)) { |
bcfd3432 AD |
7654 | if (IXGBE_MAX_PF_MACVLANS <= netdev_uc_count(dev)) |
7655 | return -ENOMEM; | |
0f4b0add JF |
7656 | } |
7657 | ||
bcfd3432 | 7658 | return ndo_dflt_fdb_add(ndm, tb, dev, addr, flags); |
0f4b0add JF |
7659 | } |
7660 | ||
815cccbf JF |
7661 | static int ixgbe_ndo_bridge_setlink(struct net_device *dev, |
7662 | struct nlmsghdr *nlh) | |
7663 | { | |
7664 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
7665 | struct nlattr *attr, *br_spec; | |
7666 | int rem; | |
7667 | ||
7668 | if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) | |
7669 | return -EOPNOTSUPP; | |
7670 | ||
7671 | br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC); | |
7672 | ||
7673 | nla_for_each_nested(attr, br_spec, rem) { | |
7674 | __u16 mode; | |
7675 | u32 reg = 0; | |
7676 | ||
7677 | if (nla_type(attr) != IFLA_BRIDGE_MODE) | |
7678 | continue; | |
7679 | ||
7680 | mode = nla_get_u16(attr); | |
9b735984 | 7681 | if (mode == BRIDGE_MODE_VEPA) { |
815cccbf | 7682 | reg = 0; |
9b735984 GR |
7683 | adapter->flags2 &= ~IXGBE_FLAG2_BRIDGE_MODE_VEB; |
7684 | } else if (mode == BRIDGE_MODE_VEB) { | |
815cccbf | 7685 | reg = IXGBE_PFDTXGSWC_VT_LBEN; |
9b735984 GR |
7686 | adapter->flags2 |= IXGBE_FLAG2_BRIDGE_MODE_VEB; |
7687 | } else | |
815cccbf JF |
7688 | return -EINVAL; |
7689 | ||
7690 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_PFDTXGSWC, reg); | |
7691 | ||
7692 | e_info(drv, "enabling bridge mode: %s\n", | |
7693 | mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB"); | |
7694 | } | |
7695 | ||
7696 | return 0; | |
7697 | } | |
7698 | ||
7699 | static int ixgbe_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, | |
6cbdceeb VY |
7700 | struct net_device *dev, |
7701 | u32 filter_mask) | |
815cccbf JF |
7702 | { |
7703 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
7704 | u16 mode; | |
7705 | ||
7706 | if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) | |
7707 | return 0; | |
7708 | ||
9b735984 | 7709 | if (adapter->flags2 & IXGBE_FLAG2_BRIDGE_MODE_VEB) |
815cccbf JF |
7710 | mode = BRIDGE_MODE_VEB; |
7711 | else | |
7712 | mode = BRIDGE_MODE_VEPA; | |
7713 | ||
7714 | return ndo_dflt_bridge_getlink(skb, pid, seq, dev, mode); | |
7715 | } | |
7716 | ||
2a47fa45 JF |
7717 | static void *ixgbe_fwd_add(struct net_device *pdev, struct net_device *vdev) |
7718 | { | |
7719 | struct ixgbe_fwd_adapter *fwd_adapter = NULL; | |
7720 | struct ixgbe_adapter *adapter = netdev_priv(pdev); | |
aac2f1bf | 7721 | int used_pools = adapter->num_vfs + adapter->num_rx_pools; |
51f3773b | 7722 | unsigned int limit; |
2a47fa45 JF |
7723 | int pool, err; |
7724 | ||
aac2f1bf JK |
7725 | /* Hardware has a limited number of available pools. Each VF, and the |
7726 | * PF require a pool. Check to ensure we don't attempt to use more | |
7727 | * then the available number of pools. | |
7728 | */ | |
7729 | if (used_pools >= IXGBE_MAX_VF_FUNCTIONS) | |
7730 | return ERR_PTR(-EINVAL); | |
7731 | ||
219354d4 JF |
7732 | #ifdef CONFIG_RPS |
7733 | if (vdev->num_rx_queues != vdev->num_tx_queues) { | |
7734 | netdev_info(pdev, "%s: Only supports a single queue count for TX and RX\n", | |
7735 | vdev->name); | |
7736 | return ERR_PTR(-EINVAL); | |
7737 | } | |
7738 | #endif | |
2a47fa45 | 7739 | /* Check for hardware restriction on number of rx/tx queues */ |
219354d4 | 7740 | if (vdev->num_tx_queues > IXGBE_MAX_L2A_QUEUES || |
2a47fa45 JF |
7741 | vdev->num_tx_queues == IXGBE_BAD_L2A_QUEUE) { |
7742 | netdev_info(pdev, | |
7743 | "%s: Supports RX/TX Queue counts 1,2, and 4\n", | |
7744 | pdev->name); | |
7745 | return ERR_PTR(-EINVAL); | |
7746 | } | |
7747 | ||
7748 | if (((adapter->flags & IXGBE_FLAG_DCB_ENABLED) && | |
7749 | adapter->num_rx_pools > IXGBE_MAX_DCBMACVLANS - 1) || | |
7750 | (adapter->num_rx_pools > IXGBE_MAX_MACVLANS)) | |
7751 | return ERR_PTR(-EBUSY); | |
7752 | ||
7753 | fwd_adapter = kcalloc(1, sizeof(struct ixgbe_fwd_adapter), GFP_KERNEL); | |
7754 | if (!fwd_adapter) | |
7755 | return ERR_PTR(-ENOMEM); | |
7756 | ||
7757 | pool = find_first_zero_bit(&adapter->fwd_bitmask, 32); | |
7758 | adapter->num_rx_pools++; | |
7759 | set_bit(pool, &adapter->fwd_bitmask); | |
51f3773b | 7760 | limit = find_last_bit(&adapter->fwd_bitmask, 32); |
2a47fa45 JF |
7761 | |
7762 | /* Enable VMDq flag so device will be set in VM mode */ | |
7763 | adapter->flags |= IXGBE_FLAG_VMDQ_ENABLED | IXGBE_FLAG_SRIOV_ENABLED; | |
51f3773b | 7764 | adapter->ring_feature[RING_F_VMDQ].limit = limit + 1; |
219354d4 | 7765 | adapter->ring_feature[RING_F_RSS].limit = vdev->num_tx_queues; |
2a47fa45 JF |
7766 | |
7767 | /* Force reinit of ring allocation with VMDQ enabled */ | |
7768 | err = ixgbe_setup_tc(pdev, netdev_get_num_tc(pdev)); | |
7769 | if (err) | |
7770 | goto fwd_add_err; | |
7771 | fwd_adapter->pool = pool; | |
7772 | fwd_adapter->real_adapter = adapter; | |
7773 | err = ixgbe_fwd_ring_up(vdev, fwd_adapter); | |
7774 | if (err) | |
7775 | goto fwd_add_err; | |
7776 | netif_tx_start_all_queues(vdev); | |
7777 | return fwd_adapter; | |
7778 | fwd_add_err: | |
7779 | /* unwind counter and free adapter struct */ | |
7780 | netdev_info(pdev, | |
7781 | "%s: dfwd hardware acceleration failed\n", vdev->name); | |
7782 | clear_bit(pool, &adapter->fwd_bitmask); | |
7783 | adapter->num_rx_pools--; | |
7784 | kfree(fwd_adapter); | |
7785 | return ERR_PTR(err); | |
7786 | } | |
7787 | ||
7788 | static void ixgbe_fwd_del(struct net_device *pdev, void *priv) | |
7789 | { | |
7790 | struct ixgbe_fwd_adapter *fwd_adapter = priv; | |
7791 | struct ixgbe_adapter *adapter = fwd_adapter->real_adapter; | |
51f3773b | 7792 | unsigned int limit; |
2a47fa45 JF |
7793 | |
7794 | clear_bit(fwd_adapter->pool, &adapter->fwd_bitmask); | |
7795 | adapter->num_rx_pools--; | |
7796 | ||
51f3773b JF |
7797 | limit = find_last_bit(&adapter->fwd_bitmask, 32); |
7798 | adapter->ring_feature[RING_F_VMDQ].limit = limit + 1; | |
2a47fa45 JF |
7799 | ixgbe_fwd_ring_down(fwd_adapter->netdev, fwd_adapter); |
7800 | ixgbe_setup_tc(pdev, netdev_get_num_tc(pdev)); | |
7801 | netdev_dbg(pdev, "pool %i:%i queues %i:%i VSI bitmask %lx\n", | |
7802 | fwd_adapter->pool, adapter->num_rx_pools, | |
7803 | fwd_adapter->rx_base_queue, | |
7804 | fwd_adapter->rx_base_queue + adapter->num_rx_queues_per_pool, | |
7805 | adapter->fwd_bitmask); | |
7806 | kfree(fwd_adapter); | |
7807 | } | |
7808 | ||
0edc3527 | 7809 | static const struct net_device_ops ixgbe_netdev_ops = { |
e8e9f696 | 7810 | .ndo_open = ixgbe_open, |
0edc3527 | 7811 | .ndo_stop = ixgbe_close, |
00829823 | 7812 | .ndo_start_xmit = ixgbe_xmit_frame, |
09a3b1f8 | 7813 | .ndo_select_queue = ixgbe_select_queue, |
581330ba | 7814 | .ndo_set_rx_mode = ixgbe_set_rx_mode, |
0edc3527 SH |
7815 | .ndo_validate_addr = eth_validate_addr, |
7816 | .ndo_set_mac_address = ixgbe_set_mac, | |
7817 | .ndo_change_mtu = ixgbe_change_mtu, | |
7818 | .ndo_tx_timeout = ixgbe_tx_timeout, | |
0edc3527 SH |
7819 | .ndo_vlan_rx_add_vid = ixgbe_vlan_rx_add_vid, |
7820 | .ndo_vlan_rx_kill_vid = ixgbe_vlan_rx_kill_vid, | |
6b73e10d | 7821 | .ndo_do_ioctl = ixgbe_ioctl, |
7f01648a GR |
7822 | .ndo_set_vf_mac = ixgbe_ndo_set_vf_mac, |
7823 | .ndo_set_vf_vlan = ixgbe_ndo_set_vf_vlan, | |
ed616689 | 7824 | .ndo_set_vf_rate = ixgbe_ndo_set_vf_bw, |
581330ba | 7825 | .ndo_set_vf_spoofchk = ixgbe_ndo_set_vf_spoofchk, |
7f01648a | 7826 | .ndo_get_vf_config = ixgbe_ndo_get_vf_config, |
de1036b1 | 7827 | .ndo_get_stats64 = ixgbe_get_stats64, |
8af3c33f | 7828 | #ifdef CONFIG_IXGBE_DCB |
24095aa3 | 7829 | .ndo_setup_tc = ixgbe_setup_tc, |
8af3c33f | 7830 | #endif |
0edc3527 SH |
7831 | #ifdef CONFIG_NET_POLL_CONTROLLER |
7832 | .ndo_poll_controller = ixgbe_netpoll, | |
7833 | #endif | |
e0d1095a | 7834 | #ifdef CONFIG_NET_RX_BUSY_POLL |
8b80cda5 | 7835 | .ndo_busy_poll = ixgbe_low_latency_recv, |
5a85e737 | 7836 | #endif |
332d4a7d YZ |
7837 | #ifdef IXGBE_FCOE |
7838 | .ndo_fcoe_ddp_setup = ixgbe_fcoe_ddp_get, | |
68a683cf | 7839 | .ndo_fcoe_ddp_target = ixgbe_fcoe_ddp_target, |
332d4a7d | 7840 | .ndo_fcoe_ddp_done = ixgbe_fcoe_ddp_put, |
8450ff8c YZ |
7841 | .ndo_fcoe_enable = ixgbe_fcoe_enable, |
7842 | .ndo_fcoe_disable = ixgbe_fcoe_disable, | |
61a1fa10 | 7843 | .ndo_fcoe_get_wwn = ixgbe_fcoe_get_wwn, |
ea81875a | 7844 | .ndo_fcoe_get_hbainfo = ixgbe_fcoe_get_hbainfo, |
332d4a7d | 7845 | #endif /* IXGBE_FCOE */ |
082757af DS |
7846 | .ndo_set_features = ixgbe_set_features, |
7847 | .ndo_fix_features = ixgbe_fix_features, | |
0f4b0add | 7848 | .ndo_fdb_add = ixgbe_ndo_fdb_add, |
815cccbf JF |
7849 | .ndo_bridge_setlink = ixgbe_ndo_bridge_setlink, |
7850 | .ndo_bridge_getlink = ixgbe_ndo_bridge_getlink, | |
2a47fa45 JF |
7851 | .ndo_dfwd_add_station = ixgbe_fwd_add, |
7852 | .ndo_dfwd_del_station = ixgbe_fwd_del, | |
0edc3527 SH |
7853 | }; |
7854 | ||
e027d1ae JK |
7855 | /** |
7856 | * ixgbe_enumerate_functions - Get the number of ports this device has | |
7857 | * @adapter: adapter structure | |
7858 | * | |
7859 | * This function enumerates the phsyical functions co-located on a single slot, | |
7860 | * in order to determine how many ports a device has. This is most useful in | |
7861 | * determining the required GT/s of PCIe bandwidth necessary for optimal | |
7862 | * performance. | |
7863 | **/ | |
7864 | static inline int ixgbe_enumerate_functions(struct ixgbe_adapter *adapter) | |
7865 | { | |
caafb95d | 7866 | struct pci_dev *entry, *pdev = adapter->pdev; |
e027d1ae JK |
7867 | int physfns = 0; |
7868 | ||
f1f96579 JK |
7869 | /* Some cards can not use the generic count PCIe functions method, |
7870 | * because they are behind a parent switch, so we hardcode these with | |
7871 | * the correct number of functions. | |
e027d1ae | 7872 | */ |
8818970d | 7873 | if (ixgbe_pcie_from_parent(&adapter->hw)) |
e027d1ae | 7874 | physfns = 4; |
8818970d JK |
7875 | |
7876 | list_for_each_entry(entry, &adapter->pdev->bus->devices, bus_list) { | |
7877 | /* don't count virtual functions */ | |
caafb95d JK |
7878 | if (entry->is_virtfn) |
7879 | continue; | |
7880 | ||
7881 | /* When the devices on the bus don't all match our device ID, | |
7882 | * we can't reliably determine the correct number of | |
7883 | * functions. This can occur if a function has been direct | |
7884 | * attached to a virtual machine using VT-d, for example. In | |
7885 | * this case, simply return -1 to indicate this. | |
7886 | */ | |
7887 | if ((entry->vendor != pdev->vendor) || | |
7888 | (entry->device != pdev->device)) | |
7889 | return -1; | |
7890 | ||
7891 | physfns++; | |
e027d1ae JK |
7892 | } |
7893 | ||
7894 | return physfns; | |
7895 | } | |
7896 | ||
8e2813f5 JK |
7897 | /** |
7898 | * ixgbe_wol_supported - Check whether device supports WoL | |
7899 | * @hw: hw specific details | |
7900 | * @device_id: the device ID | |
7901 | * @subdev_id: the subsystem device ID | |
7902 | * | |
7903 | * This function is used by probe and ethtool to determine | |
7904 | * which devices have WoL support | |
7905 | * | |
7906 | **/ | |
7907 | int ixgbe_wol_supported(struct ixgbe_adapter *adapter, u16 device_id, | |
7908 | u16 subdevice_id) | |
7909 | { | |
7910 | struct ixgbe_hw *hw = &adapter->hw; | |
7911 | u16 wol_cap = adapter->eeprom_cap & IXGBE_DEVICE_CAPS_WOL_MASK; | |
7912 | int is_wol_supported = 0; | |
7913 | ||
7914 | switch (device_id) { | |
7915 | case IXGBE_DEV_ID_82599_SFP: | |
7916 | /* Only these subdevices could supports WOL */ | |
7917 | switch (subdevice_id) { | |
87557440 | 7918 | case IXGBE_SUBDEV_ID_82599_SFP_WOL0: |
8e2813f5 JK |
7919 | case IXGBE_SUBDEV_ID_82599_560FLR: |
7920 | /* only support first port */ | |
7921 | if (hw->bus.func != 0) | |
7922 | break; | |
5700ff26 | 7923 | case IXGBE_SUBDEV_ID_82599_SP_560FLR: |
8e2813f5 | 7924 | case IXGBE_SUBDEV_ID_82599_SFP: |
b6dfd939 | 7925 | case IXGBE_SUBDEV_ID_82599_RNDC: |
f8a06c2c | 7926 | case IXGBE_SUBDEV_ID_82599_ECNA_DP: |
979fe5f7 | 7927 | case IXGBE_SUBDEV_ID_82599_LOM_SFP: |
8e2813f5 JK |
7928 | is_wol_supported = 1; |
7929 | break; | |
7930 | } | |
7931 | break; | |
5daebbb0 DS |
7932 | case IXGBE_DEV_ID_82599EN_SFP: |
7933 | /* Only this subdevice supports WOL */ | |
7934 | switch (subdevice_id) { | |
7935 | case IXGBE_SUBDEV_ID_82599EN_SFP_OCP1: | |
7936 | is_wol_supported = 1; | |
7937 | break; | |
7938 | } | |
7939 | break; | |
8e2813f5 JK |
7940 | case IXGBE_DEV_ID_82599_COMBO_BACKPLANE: |
7941 | /* All except this subdevice support WOL */ | |
7942 | if (subdevice_id != IXGBE_SUBDEV_ID_82599_KX4_KR_MEZZ) | |
7943 | is_wol_supported = 1; | |
7944 | break; | |
7945 | case IXGBE_DEV_ID_82599_KX4: | |
7946 | is_wol_supported = 1; | |
7947 | break; | |
7948 | case IXGBE_DEV_ID_X540T: | |
df376f0d | 7949 | case IXGBE_DEV_ID_X540T1: |
8e2813f5 JK |
7950 | /* check eeprom to see if enabled wol */ |
7951 | if ((wol_cap == IXGBE_DEVICE_CAPS_WOL_PORT0_1) || | |
7952 | ((wol_cap == IXGBE_DEVICE_CAPS_WOL_PORT0) && | |
7953 | (hw->bus.func == 0))) { | |
7954 | is_wol_supported = 1; | |
7955 | } | |
7956 | break; | |
7957 | } | |
7958 | ||
7959 | return is_wol_supported; | |
7960 | } | |
7961 | ||
9a799d71 AK |
7962 | /** |
7963 | * ixgbe_probe - Device Initialization Routine | |
7964 | * @pdev: PCI device information struct | |
7965 | * @ent: entry in ixgbe_pci_tbl | |
7966 | * | |
7967 | * Returns 0 on success, negative on failure | |
7968 | * | |
7969 | * ixgbe_probe initializes an adapter identified by a pci_dev structure. | |
7970 | * The OS initialization, configuring of the adapter private structure, | |
7971 | * and a hardware reset occur. | |
7972 | **/ | |
1dd06ae8 | 7973 | static int ixgbe_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
9a799d71 AK |
7974 | { |
7975 | struct net_device *netdev; | |
7976 | struct ixgbe_adapter *adapter = NULL; | |
7977 | struct ixgbe_hw *hw; | |
7978 | const struct ixgbe_info *ii = ixgbe_info_tbl[ent->driver_data]; | |
e027d1ae | 7979 | int i, err, pci_using_dac, expected_gts; |
d3cb9869 | 7980 | unsigned int indices = MAX_TX_QUEUES; |
289700db | 7981 | u8 part_str[IXGBE_PBANUM_LENGTH]; |
eacd73f7 YZ |
7982 | #ifdef IXGBE_FCOE |
7983 | u16 device_caps; | |
7984 | #endif | |
289700db | 7985 | u32 eec; |
9a799d71 | 7986 | |
bded64a7 AG |
7987 | /* Catch broken hardware that put the wrong VF device ID in |
7988 | * the PCIe SR-IOV capability. | |
7989 | */ | |
7990 | if (pdev->is_virtfn) { | |
7991 | WARN(1, KERN_ERR "%s (%hx:%hx) should not be a VF!\n", | |
7992 | pci_name(pdev), pdev->vendor, pdev->device); | |
7993 | return -EINVAL; | |
7994 | } | |
7995 | ||
9ce77666 | 7996 | err = pci_enable_device_mem(pdev); |
9a799d71 AK |
7997 | if (err) |
7998 | return err; | |
7999 | ||
f5f2eda8 | 8000 | if (!dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) { |
9a799d71 AK |
8001 | pci_using_dac = 1; |
8002 | } else { | |
f5f2eda8 | 8003 | err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); |
9a799d71 | 8004 | if (err) { |
f5f2eda8 RK |
8005 | dev_err(&pdev->dev, |
8006 | "No usable DMA configuration, aborting\n"); | |
8007 | goto err_dma; | |
9a799d71 AK |
8008 | } |
8009 | pci_using_dac = 0; | |
8010 | } | |
8011 | ||
9ce77666 | 8012 | err = pci_request_selected_regions(pdev, pci_select_bars(pdev, |
e8e9f696 | 8013 | IORESOURCE_MEM), ixgbe_driver_name); |
9a799d71 | 8014 | if (err) { |
b8bc0421 DC |
8015 | dev_err(&pdev->dev, |
8016 | "pci_request_selected_regions failed 0x%x\n", err); | |
9a799d71 AK |
8017 | goto err_pci_reg; |
8018 | } | |
8019 | ||
19d5afd4 | 8020 | pci_enable_pcie_error_reporting(pdev); |
6fabd715 | 8021 | |
9a799d71 | 8022 | pci_set_master(pdev); |
fb3b27bc | 8023 | pci_save_state(pdev); |
9a799d71 | 8024 | |
d3cb9869 | 8025 | if (ii->mac == ixgbe_mac_82598EB) { |
e901acd6 | 8026 | #ifdef CONFIG_IXGBE_DCB |
d3cb9869 AD |
8027 | /* 8 TC w/ 4 queues per TC */ |
8028 | indices = 4 * MAX_TRAFFIC_CLASS; | |
8029 | #else | |
8030 | indices = IXGBE_MAX_RSS_INDICES; | |
e901acd6 | 8031 | #endif |
d3cb9869 | 8032 | } |
e901acd6 | 8033 | |
c85a2618 | 8034 | netdev = alloc_etherdev_mq(sizeof(struct ixgbe_adapter), indices); |
9a799d71 AK |
8035 | if (!netdev) { |
8036 | err = -ENOMEM; | |
8037 | goto err_alloc_etherdev; | |
8038 | } | |
8039 | ||
9a799d71 AK |
8040 | SET_NETDEV_DEV(netdev, &pdev->dev); |
8041 | ||
9a799d71 | 8042 | adapter = netdev_priv(netdev); |
c60fbb00 | 8043 | pci_set_drvdata(pdev, adapter); |
9a799d71 AK |
8044 | |
8045 | adapter->netdev = netdev; | |
8046 | adapter->pdev = pdev; | |
8047 | hw = &adapter->hw; | |
8048 | hw->back = adapter; | |
b3f4d599 | 8049 | adapter->msg_enable = netif_msg_init(debug, DEFAULT_MSG_ENABLE); |
9a799d71 | 8050 | |
05857980 | 8051 | hw->hw_addr = ioremap(pci_resource_start(pdev, 0), |
e8e9f696 | 8052 | pci_resource_len(pdev, 0)); |
2a1a091c | 8053 | adapter->io_addr = hw->hw_addr; |
9a799d71 AK |
8054 | if (!hw->hw_addr) { |
8055 | err = -EIO; | |
8056 | goto err_ioremap; | |
8057 | } | |
8058 | ||
0edc3527 | 8059 | netdev->netdev_ops = &ixgbe_netdev_ops; |
9a799d71 | 8060 | ixgbe_set_ethtool_ops(netdev); |
9a799d71 | 8061 | netdev->watchdog_timeo = 5 * HZ; |
339de30f | 8062 | strlcpy(netdev->name, pci_name(pdev), sizeof(netdev->name)); |
9a799d71 | 8063 | |
9a799d71 AK |
8064 | /* Setup hw api */ |
8065 | memcpy(&hw->mac.ops, ii->mac_ops, sizeof(hw->mac.ops)); | |
021230d4 | 8066 | hw->mac.type = ii->mac; |
9a799d71 | 8067 | |
c44ade9e JB |
8068 | /* EEPROM */ |
8069 | memcpy(&hw->eeprom.ops, ii->eeprom_ops, sizeof(hw->eeprom.ops)); | |
8070 | eec = IXGBE_READ_REG(hw, IXGBE_EEC); | |
58cf663f MR |
8071 | if (ixgbe_removed(hw->hw_addr)) { |
8072 | err = -EIO; | |
8073 | goto err_ioremap; | |
8074 | } | |
c44ade9e JB |
8075 | /* If EEPROM is valid (bit 8 = 1), use default otherwise use bit bang */ |
8076 | if (!(eec & (1 << 8))) | |
8077 | hw->eeprom.ops.read = &ixgbe_read_eeprom_bit_bang_generic; | |
8078 | ||
8079 | /* PHY */ | |
8080 | memcpy(&hw->phy.ops, ii->phy_ops, sizeof(hw->phy.ops)); | |
c4900be0 | 8081 | hw->phy.sfp_type = ixgbe_sfp_type_unknown; |
6b73e10d BH |
8082 | /* ixgbe_identify_phy_generic will set prtad and mmds properly */ |
8083 | hw->phy.mdio.prtad = MDIO_PRTAD_NONE; | |
8084 | hw->phy.mdio.mmds = 0; | |
8085 | hw->phy.mdio.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22; | |
8086 | hw->phy.mdio.dev = netdev; | |
8087 | hw->phy.mdio.mdio_read = ixgbe_mdio_read; | |
8088 | hw->phy.mdio.mdio_write = ixgbe_mdio_write; | |
c4900be0 | 8089 | |
8ca783ab | 8090 | ii->get_invariants(hw); |
9a799d71 AK |
8091 | |
8092 | /* setup the private structure */ | |
8093 | err = ixgbe_sw_init(adapter); | |
8094 | if (err) | |
8095 | goto err_sw_init; | |
8096 | ||
e86bff0e | 8097 | /* Make it possible the adapter to be woken up via WOL */ |
b93a2226 DS |
8098 | switch (adapter->hw.mac.type) { |
8099 | case ixgbe_mac_82599EB: | |
8100 | case ixgbe_mac_X540: | |
e86bff0e | 8101 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); |
b93a2226 DS |
8102 | break; |
8103 | default: | |
8104 | break; | |
8105 | } | |
e86bff0e | 8106 | |
bf069c97 DS |
8107 | /* |
8108 | * If there is a fan on this device and it has failed log the | |
8109 | * failure. | |
8110 | */ | |
8111 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) { | |
8112 | u32 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); | |
8113 | if (esdp & IXGBE_ESDP_SDP1) | |
396e799c | 8114 | e_crit(probe, "Fan has stopped, replace the adapter\n"); |
bf069c97 DS |
8115 | } |
8116 | ||
8ef78adc PWJ |
8117 | if (allow_unsupported_sfp) |
8118 | hw->allow_unsupported_sfp = allow_unsupported_sfp; | |
8119 | ||
c44ade9e | 8120 | /* reset_hw fills in the perm_addr as well */ |
119fc60a | 8121 | hw->phy.reset_if_overtemp = true; |
c44ade9e | 8122 | err = hw->mac.ops.reset_hw(hw); |
119fc60a | 8123 | hw->phy.reset_if_overtemp = false; |
8ca783ab DS |
8124 | if (err == IXGBE_ERR_SFP_NOT_PRESENT && |
8125 | hw->mac.type == ixgbe_mac_82598EB) { | |
8ca783ab DS |
8126 | err = 0; |
8127 | } else if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) { | |
1b1bf31a DS |
8128 | e_dev_err("failed to load because an unsupported SFP+ or QSFP module type was detected.\n"); |
8129 | e_dev_err("Reload the driver after installing a supported module.\n"); | |
04f165ef PW |
8130 | goto err_sw_init; |
8131 | } else if (err) { | |
849c4542 | 8132 | e_dev_err("HW Init failed: %d\n", err); |
c44ade9e JB |
8133 | goto err_sw_init; |
8134 | } | |
8135 | ||
99d74487 | 8136 | #ifdef CONFIG_PCI_IOV |
60a1a680 GR |
8137 | /* SR-IOV not supported on the 82598 */ |
8138 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) | |
8139 | goto skip_sriov; | |
8140 | /* Mailbox */ | |
8141 | ixgbe_init_mbx_params_pf(hw); | |
8142 | memcpy(&hw->mbx.ops, ii->mbx_ops, sizeof(hw->mbx.ops)); | |
dcc23e3a | 8143 | pci_sriov_set_totalvfs(pdev, IXGBE_MAX_VFS_DRV_LIMIT); |
31ac910e | 8144 | ixgbe_enable_sriov(adapter); |
60a1a680 | 8145 | skip_sriov: |
1cdd1ec8 | 8146 | |
99d74487 | 8147 | #endif |
396e799c | 8148 | netdev->features = NETIF_F_SG | |
e8e9f696 | 8149 | NETIF_F_IP_CSUM | |
082757af | 8150 | NETIF_F_IPV6_CSUM | |
f646968f PM |
8151 | NETIF_F_HW_VLAN_CTAG_TX | |
8152 | NETIF_F_HW_VLAN_CTAG_RX | | |
8153 | NETIF_F_HW_VLAN_CTAG_FILTER | | |
082757af DS |
8154 | NETIF_F_TSO | |
8155 | NETIF_F_TSO6 | | |
082757af | 8156 | NETIF_F_RXHASH | |
8bf1264d | 8157 | NETIF_F_RXCSUM; |
9a799d71 | 8158 | |
8bf1264d | 8159 | netdev->hw_features = netdev->features | NETIF_F_HW_L2FW_DOFFLOAD; |
ad31c402 | 8160 | |
58be7666 DS |
8161 | switch (adapter->hw.mac.type) { |
8162 | case ixgbe_mac_82599EB: | |
8163 | case ixgbe_mac_X540: | |
45a5ead0 | 8164 | netdev->features |= NETIF_F_SCTP_CSUM; |
082757af DS |
8165 | netdev->hw_features |= NETIF_F_SCTP_CSUM | |
8166 | NETIF_F_NTUPLE; | |
58be7666 DS |
8167 | break; |
8168 | default: | |
8169 | break; | |
8170 | } | |
45a5ead0 | 8171 | |
3f2d1c0f BG |
8172 | netdev->hw_features |= NETIF_F_RXALL; |
8173 | ||
ad31c402 JK |
8174 | netdev->vlan_features |= NETIF_F_TSO; |
8175 | netdev->vlan_features |= NETIF_F_TSO6; | |
22f32b7a | 8176 | netdev->vlan_features |= NETIF_F_IP_CSUM; |
cd1da503 | 8177 | netdev->vlan_features |= NETIF_F_IPV6_CSUM; |
ad31c402 JK |
8178 | netdev->vlan_features |= NETIF_F_SG; |
8179 | ||
01789349 | 8180 | netdev->priv_flags |= IFF_UNICAST_FLT; |
f43f313e | 8181 | netdev->priv_flags |= IFF_SUPP_NOFCS; |
01789349 | 8182 | |
7a6b6f51 | 8183 | #ifdef CONFIG_IXGBE_DCB |
2f90b865 AD |
8184 | netdev->dcbnl_ops = &dcbnl_ops; |
8185 | #endif | |
8186 | ||
eacd73f7 | 8187 | #ifdef IXGBE_FCOE |
0d551589 | 8188 | if (adapter->flags & IXGBE_FLAG_FCOE_CAPABLE) { |
d3cb9869 AD |
8189 | unsigned int fcoe_l; |
8190 | ||
eacd73f7 YZ |
8191 | if (hw->mac.ops.get_device_caps) { |
8192 | hw->mac.ops.get_device_caps(hw, &device_caps); | |
0d551589 YZ |
8193 | if (device_caps & IXGBE_DEVICE_CAPS_FCOE_OFFLOADS) |
8194 | adapter->flags &= ~IXGBE_FLAG_FCOE_CAPABLE; | |
eacd73f7 | 8195 | } |
7c8ae65a | 8196 | |
d3cb9869 AD |
8197 | |
8198 | fcoe_l = min_t(int, IXGBE_FCRETA_SIZE, num_online_cpus()); | |
8199 | adapter->ring_feature[RING_F_FCOE].limit = fcoe_l; | |
7c8ae65a | 8200 | |
a58915c7 AD |
8201 | netdev->features |= NETIF_F_FSO | |
8202 | NETIF_F_FCOE_CRC; | |
8203 | ||
7c8ae65a AD |
8204 | netdev->vlan_features |= NETIF_F_FSO | |
8205 | NETIF_F_FCOE_CRC | | |
8206 | NETIF_F_FCOE_MTU; | |
5e09d7f6 | 8207 | } |
eacd73f7 | 8208 | #endif /* IXGBE_FCOE */ |
7b872a55 | 8209 | if (pci_using_dac) { |
9a799d71 | 8210 | netdev->features |= NETIF_F_HIGHDMA; |
7b872a55 YZ |
8211 | netdev->vlan_features |= NETIF_F_HIGHDMA; |
8212 | } | |
9a799d71 | 8213 | |
082757af DS |
8214 | if (adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE) |
8215 | netdev->hw_features |= NETIF_F_LRO; | |
0c19d6af | 8216 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) |
f8212f97 AD |
8217 | netdev->features |= NETIF_F_LRO; |
8218 | ||
9a799d71 | 8219 | /* make sure the EEPROM is good */ |
c44ade9e | 8220 | if (hw->eeprom.ops.validate_checksum(hw, NULL) < 0) { |
849c4542 | 8221 | e_dev_err("The EEPROM Checksum Is Not Valid\n"); |
9a799d71 | 8222 | err = -EIO; |
35937c05 | 8223 | goto err_sw_init; |
9a799d71 AK |
8224 | } |
8225 | ||
8226 | memcpy(netdev->dev_addr, hw->mac.perm_addr, netdev->addr_len); | |
9a799d71 | 8227 | |
aaeb6cdf | 8228 | if (!is_valid_ether_addr(netdev->dev_addr)) { |
849c4542 | 8229 | e_dev_err("invalid MAC address\n"); |
9a799d71 | 8230 | err = -EIO; |
35937c05 | 8231 | goto err_sw_init; |
9a799d71 AK |
8232 | } |
8233 | ||
5d7daa35 JK |
8234 | ixgbe_mac_set_default_filter(adapter, hw->mac.perm_addr); |
8235 | ||
7086400d | 8236 | setup_timer(&adapter->service_timer, &ixgbe_service_timer, |
581330ba | 8237 | (unsigned long) adapter); |
9a799d71 | 8238 | |
58cf663f MR |
8239 | if (ixgbe_removed(hw->hw_addr)) { |
8240 | err = -EIO; | |
8241 | goto err_sw_init; | |
8242 | } | |
7086400d | 8243 | INIT_WORK(&adapter->service_task, ixgbe_service_task); |
58cf663f | 8244 | set_bit(__IXGBE_SERVICE_INITED, &adapter->state); |
7086400d | 8245 | clear_bit(__IXGBE_SERVICE_SCHED, &adapter->state); |
9a799d71 | 8246 | |
021230d4 AV |
8247 | err = ixgbe_init_interrupt_scheme(adapter); |
8248 | if (err) | |
8249 | goto err_sw_init; | |
9a799d71 | 8250 | |
8e2813f5 | 8251 | /* WOL not supported for all devices */ |
c23f5b6b | 8252 | adapter->wol = 0; |
8e2813f5 | 8253 | hw->eeprom.ops.read(hw, 0x2c, &adapter->eeprom_cap); |
6b92b0ba | 8254 | hw->wol_enabled = ixgbe_wol_supported(adapter, pdev->device, |
b8f83638 | 8255 | pdev->subsystem_device); |
6b92b0ba | 8256 | if (hw->wol_enabled) |
9417c464 | 8257 | adapter->wol = IXGBE_WUFC_MAG; |
c23f5b6b | 8258 | |
e8e26350 PW |
8259 | device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); |
8260 | ||
15e5209f ET |
8261 | /* save off EEPROM version number */ |
8262 | hw->eeprom.ops.read(hw, 0x2e, &adapter->eeprom_verh); | |
8263 | hw->eeprom.ops.read(hw, 0x2d, &adapter->eeprom_verl); | |
8264 | ||
04f165ef PW |
8265 | /* pick up the PCI bus settings for reporting later */ |
8266 | hw->mac.ops.get_bus_info(hw); | |
e027d1ae | 8267 | if (ixgbe_pcie_from_parent(hw)) |
b8e82001 | 8268 | ixgbe_get_parent_bus_info(adapter); |
04f165ef | 8269 | |
e027d1ae JK |
8270 | /* calculate the expected PCIe bandwidth required for optimal |
8271 | * performance. Note that some older parts will never have enough | |
8272 | * bandwidth due to being older generation PCIe parts. We clamp these | |
8273 | * parts to ensure no warning is displayed if it can't be fixed. | |
8274 | */ | |
8275 | switch (hw->mac.type) { | |
8276 | case ixgbe_mac_82598EB: | |
8277 | expected_gts = min(ixgbe_enumerate_functions(adapter) * 10, 16); | |
8278 | break; | |
8279 | default: | |
8280 | expected_gts = ixgbe_enumerate_functions(adapter) * 10; | |
8281 | break; | |
0c254d86 | 8282 | } |
caafb95d JK |
8283 | |
8284 | /* don't check link if we failed to enumerate functions */ | |
8285 | if (expected_gts > 0) | |
8286 | ixgbe_check_minimum_link(adapter, expected_gts); | |
0c254d86 | 8287 | |
339de30f | 8288 | err = ixgbe_read_pba_string_generic(hw, part_str, sizeof(part_str)); |
6a2aae5a | 8289 | if (err) |
339de30f | 8290 | strlcpy(part_str, "Unknown", sizeof(part_str)); |
6a2aae5a JK |
8291 | if (ixgbe_is_sfp(hw) && hw->phy.sfp_type != ixgbe_sfp_type_not_present) |
8292 | e_dev_info("MAC: %d, PHY: %d, SFP+: %d, PBA No: %s\n", | |
8293 | hw->mac.type, hw->phy.type, hw->phy.sfp_type, | |
e7cf745b | 8294 | part_str); |
6a2aae5a JK |
8295 | else |
8296 | e_dev_info("MAC: %d, PHY: %d, PBA No: %s\n", | |
8297 | hw->mac.type, hw->phy.type, part_str); | |
8298 | ||
8299 | e_dev_info("%pM\n", netdev->dev_addr); | |
8300 | ||
9a799d71 | 8301 | /* reset the hardware with the new settings */ |
794caeb2 | 8302 | err = hw->mac.ops.start_hw(hw); |
794caeb2 PWJ |
8303 | if (err == IXGBE_ERR_EEPROM_VERSION) { |
8304 | /* We are running on a pre-production device, log a warning */ | |
849c4542 ET |
8305 | e_dev_warn("This device is a pre-production adapter/LOM. " |
8306 | "Please be aware there may be issues associated " | |
8307 | "with your hardware. If you are experiencing " | |
8308 | "problems please contact your Intel or hardware " | |
8309 | "representative who provided you with this " | |
8310 | "hardware.\n"); | |
794caeb2 | 8311 | } |
9a799d71 AK |
8312 | strcpy(netdev->name, "eth%d"); |
8313 | err = register_netdev(netdev); | |
8314 | if (err) | |
8315 | goto err_register; | |
8316 | ||
ec74a471 ET |
8317 | /* power down the optics for 82599 SFP+ fiber */ |
8318 | if (hw->mac.ops.disable_tx_laser) | |
93d3ce8f ET |
8319 | hw->mac.ops.disable_tx_laser(hw); |
8320 | ||
54386467 JB |
8321 | /* carrier off reporting is important to ethtool even BEFORE open */ |
8322 | netif_carrier_off(netdev); | |
8323 | ||
5dd2d332 | 8324 | #ifdef CONFIG_IXGBE_DCA |
652f093f | 8325 | if (dca_add_requester(&pdev->dev) == 0) { |
bd0362dd | 8326 | adapter->flags |= IXGBE_FLAG_DCA_ENABLED; |
bd0362dd JC |
8327 | ixgbe_setup_dca(adapter); |
8328 | } | |
8329 | #endif | |
1cdd1ec8 | 8330 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { |
396e799c | 8331 | e_info(probe, "IOV is enabled with %d VFs\n", adapter->num_vfs); |
1cdd1ec8 GR |
8332 | for (i = 0; i < adapter->num_vfs; i++) |
8333 | ixgbe_vf_configuration(pdev, (i | 0x10000000)); | |
8334 | } | |
8335 | ||
2466dd9c JK |
8336 | /* firmware requires driver version to be 0xFFFFFFFF |
8337 | * since os does not support feature | |
8338 | */ | |
9612de92 | 8339 | if (hw->mac.ops.set_fw_drv_ver) |
2466dd9c JK |
8340 | hw->mac.ops.set_fw_drv_ver(hw, 0xFF, 0xFF, 0xFF, |
8341 | 0xFF); | |
9612de92 | 8342 | |
0365e6e4 PW |
8343 | /* add san mac addr to netdev */ |
8344 | ixgbe_add_sanmac_netdev(netdev); | |
9a799d71 | 8345 | |
ea81875a | 8346 | e_dev_info("%s\n", ixgbe_default_device_descr); |
3ca8bc6d | 8347 | |
1210982b | 8348 | #ifdef CONFIG_IXGBE_HWMON |
3ca8bc6d DS |
8349 | if (ixgbe_sysfs_init(adapter)) |
8350 | e_err(probe, "failed to allocate sysfs resources\n"); | |
1210982b | 8351 | #endif /* CONFIG_IXGBE_HWMON */ |
3ca8bc6d | 8352 | |
00949167 | 8353 | ixgbe_dbg_adapter_init(adapter); |
00949167 | 8354 | |
d1a35ee2 ET |
8355 | /* setup link for SFP devices with MNG FW, else wait for IXGBE_UP */ |
8356 | if (ixgbe_mng_enabled(hw) && ixgbe_is_sfp(hw) && hw->mac.ops.setup_link) | |
0b2679d6 DS |
8357 | hw->mac.ops.setup_link(hw, |
8358 | IXGBE_LINK_SPEED_10GB_FULL | IXGBE_LINK_SPEED_1GB_FULL, | |
8359 | true); | |
8360 | ||
9a799d71 AK |
8361 | return 0; |
8362 | ||
8363 | err_register: | |
5eba3699 | 8364 | ixgbe_release_hw_control(adapter); |
7a921c93 | 8365 | ixgbe_clear_interrupt_scheme(adapter); |
9a799d71 | 8366 | err_sw_init: |
99d74487 | 8367 | ixgbe_disable_sriov(adapter); |
7086400d | 8368 | adapter->flags2 &= ~IXGBE_FLAG2_SEARCH_FOR_SFP; |
2a1a091c | 8369 | iounmap(adapter->io_addr); |
5d7daa35 | 8370 | kfree(adapter->mac_table); |
9a799d71 AK |
8371 | err_ioremap: |
8372 | free_netdev(netdev); | |
8373 | err_alloc_etherdev: | |
e8e9f696 JP |
8374 | pci_release_selected_regions(pdev, |
8375 | pci_select_bars(pdev, IORESOURCE_MEM)); | |
9a799d71 AK |
8376 | err_pci_reg: |
8377 | err_dma: | |
508a8c9e | 8378 | if (!adapter || !test_and_set_bit(__IXGBE_DISABLED, &adapter->state)) |
41c62843 | 8379 | pci_disable_device(pdev); |
9a799d71 AK |
8380 | return err; |
8381 | } | |
8382 | ||
8383 | /** | |
8384 | * ixgbe_remove - Device Removal Routine | |
8385 | * @pdev: PCI device information struct | |
8386 | * | |
8387 | * ixgbe_remove is called by the PCI subsystem to alert the driver | |
8388 | * that it should release a PCI device. The could be caused by a | |
8389 | * Hot-Plug event, or because the driver is going to be removed from | |
8390 | * memory. | |
8391 | **/ | |
9f9a12f8 | 8392 | static void ixgbe_remove(struct pci_dev *pdev) |
9a799d71 | 8393 | { |
c60fbb00 AD |
8394 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
8395 | struct net_device *netdev = adapter->netdev; | |
9a799d71 | 8396 | |
00949167 | 8397 | ixgbe_dbg_adapter_exit(adapter); |
00949167 | 8398 | |
09f40aed | 8399 | set_bit(__IXGBE_REMOVING, &adapter->state); |
7086400d | 8400 | cancel_work_sync(&adapter->service_task); |
9a799d71 | 8401 | |
3a6a4eda | 8402 | |
5dd2d332 | 8403 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd JC |
8404 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) { |
8405 | adapter->flags &= ~IXGBE_FLAG_DCA_ENABLED; | |
8406 | dca_remove_requester(&pdev->dev); | |
8407 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, 1); | |
8408 | } | |
8409 | ||
8410 | #endif | |
1210982b | 8411 | #ifdef CONFIG_IXGBE_HWMON |
3ca8bc6d | 8412 | ixgbe_sysfs_exit(adapter); |
1210982b | 8413 | #endif /* CONFIG_IXGBE_HWMON */ |
3ca8bc6d | 8414 | |
0365e6e4 PW |
8415 | /* remove the added san mac */ |
8416 | ixgbe_del_sanmac_netdev(netdev); | |
8417 | ||
c4900be0 DS |
8418 | if (netdev->reg_state == NETREG_REGISTERED) |
8419 | unregister_netdev(netdev); | |
9a799d71 | 8420 | |
da36b647 GR |
8421 | #ifdef CONFIG_PCI_IOV |
8422 | /* | |
8423 | * Only disable SR-IOV on unload if the user specified the now | |
8424 | * deprecated max_vfs module parameter. | |
8425 | */ | |
8426 | if (max_vfs) | |
8427 | ixgbe_disable_sriov(adapter); | |
8428 | #endif | |
7a921c93 | 8429 | ixgbe_clear_interrupt_scheme(adapter); |
5eba3699 | 8430 | |
021230d4 | 8431 | ixgbe_release_hw_control(adapter); |
9a799d71 | 8432 | |
2b1588c3 AD |
8433 | #ifdef CONFIG_DCB |
8434 | kfree(adapter->ixgbe_ieee_pfc); | |
8435 | kfree(adapter->ixgbe_ieee_ets); | |
8436 | ||
8437 | #endif | |
2a1a091c | 8438 | iounmap(adapter->io_addr); |
9ce77666 | 8439 | pci_release_selected_regions(pdev, pci_select_bars(pdev, |
e8e9f696 | 8440 | IORESOURCE_MEM)); |
9a799d71 | 8441 | |
849c4542 | 8442 | e_dev_info("complete\n"); |
021230d4 | 8443 | |
5d7daa35 | 8444 | kfree(adapter->mac_table); |
9a799d71 AK |
8445 | free_netdev(netdev); |
8446 | ||
19d5afd4 | 8447 | pci_disable_pcie_error_reporting(pdev); |
6fabd715 | 8448 | |
41c62843 MR |
8449 | if (!test_and_set_bit(__IXGBE_DISABLED, &adapter->state)) |
8450 | pci_disable_device(pdev); | |
9a799d71 AK |
8451 | } |
8452 | ||
8453 | /** | |
8454 | * ixgbe_io_error_detected - called when PCI error is detected | |
8455 | * @pdev: Pointer to PCI device | |
8456 | * @state: The current pci connection state | |
8457 | * | |
8458 | * This function is called after a PCI bus error affecting | |
8459 | * this device has been detected. | |
8460 | */ | |
8461 | static pci_ers_result_t ixgbe_io_error_detected(struct pci_dev *pdev, | |
e8e9f696 | 8462 | pci_channel_state_t state) |
9a799d71 | 8463 | { |
c60fbb00 AD |
8464 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
8465 | struct net_device *netdev = adapter->netdev; | |
9a799d71 | 8466 | |
83c61fa9 | 8467 | #ifdef CONFIG_PCI_IOV |
14438464 | 8468 | struct ixgbe_hw *hw = &adapter->hw; |
83c61fa9 GR |
8469 | struct pci_dev *bdev, *vfdev; |
8470 | u32 dw0, dw1, dw2, dw3; | |
8471 | int vf, pos; | |
8472 | u16 req_id, pf_func; | |
8473 | ||
8474 | if (adapter->hw.mac.type == ixgbe_mac_82598EB || | |
8475 | adapter->num_vfs == 0) | |
8476 | goto skip_bad_vf_detection; | |
8477 | ||
8478 | bdev = pdev->bus->self; | |
62f87c0e | 8479 | while (bdev && (pci_pcie_type(bdev) != PCI_EXP_TYPE_ROOT_PORT)) |
83c61fa9 GR |
8480 | bdev = bdev->bus->self; |
8481 | ||
8482 | if (!bdev) | |
8483 | goto skip_bad_vf_detection; | |
8484 | ||
8485 | pos = pci_find_ext_capability(bdev, PCI_EXT_CAP_ID_ERR); | |
8486 | if (!pos) | |
8487 | goto skip_bad_vf_detection; | |
8488 | ||
14438464 MR |
8489 | dw0 = ixgbe_read_pci_cfg_dword(hw, pos + PCI_ERR_HEADER_LOG); |
8490 | dw1 = ixgbe_read_pci_cfg_dword(hw, pos + PCI_ERR_HEADER_LOG + 4); | |
8491 | dw2 = ixgbe_read_pci_cfg_dword(hw, pos + PCI_ERR_HEADER_LOG + 8); | |
8492 | dw3 = ixgbe_read_pci_cfg_dword(hw, pos + PCI_ERR_HEADER_LOG + 12); | |
8493 | if (ixgbe_removed(hw->hw_addr)) | |
8494 | goto skip_bad_vf_detection; | |
83c61fa9 GR |
8495 | |
8496 | req_id = dw1 >> 16; | |
8497 | /* On the 82599 if bit 7 of the requestor ID is set then it's a VF */ | |
8498 | if (!(req_id & 0x0080)) | |
8499 | goto skip_bad_vf_detection; | |
8500 | ||
8501 | pf_func = req_id & 0x01; | |
8502 | if ((pf_func & 1) == (pdev->devfn & 1)) { | |
8503 | unsigned int device_id; | |
8504 | ||
8505 | vf = (req_id & 0x7F) >> 1; | |
8506 | e_dev_err("VF %d has caused a PCIe error\n", vf); | |
8507 | e_dev_err("TLP: dw0: %8.8x\tdw1: %8.8x\tdw2: " | |
8508 | "%8.8x\tdw3: %8.8x\n", | |
8509 | dw0, dw1, dw2, dw3); | |
8510 | switch (adapter->hw.mac.type) { | |
8511 | case ixgbe_mac_82599EB: | |
8512 | device_id = IXGBE_82599_VF_DEVICE_ID; | |
8513 | break; | |
8514 | case ixgbe_mac_X540: | |
8515 | device_id = IXGBE_X540_VF_DEVICE_ID; | |
8516 | break; | |
8517 | default: | |
8518 | device_id = 0; | |
8519 | break; | |
8520 | } | |
8521 | ||
8522 | /* Find the pci device of the offending VF */ | |
36e90319 | 8523 | vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, device_id, NULL); |
83c61fa9 GR |
8524 | while (vfdev) { |
8525 | if (vfdev->devfn == (req_id & 0xFF)) | |
8526 | break; | |
36e90319 | 8527 | vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, |
83c61fa9 GR |
8528 | device_id, vfdev); |
8529 | } | |
8530 | /* | |
8531 | * There's a slim chance the VF could have been hot plugged, | |
8532 | * so if it is no longer present we don't need to issue the | |
8533 | * VFLR. Just clean up the AER in that case. | |
8534 | */ | |
8535 | if (vfdev) { | |
8536 | e_dev_err("Issuing VFLR to VF %d\n", vf); | |
8537 | pci_write_config_dword(vfdev, 0xA8, 0x00008000); | |
b4fafbe9 GR |
8538 | /* Free device reference count */ |
8539 | pci_dev_put(vfdev); | |
83c61fa9 GR |
8540 | } |
8541 | ||
8542 | pci_cleanup_aer_uncorrect_error_status(pdev); | |
8543 | } | |
8544 | ||
8545 | /* | |
8546 | * Even though the error may have occurred on the other port | |
8547 | * we still need to increment the vf error reference count for | |
8548 | * both ports because the I/O resume function will be called | |
8549 | * for both of them. | |
8550 | */ | |
8551 | adapter->vferr_refcount++; | |
8552 | ||
8553 | return PCI_ERS_RESULT_RECOVERED; | |
8554 | ||
8555 | skip_bad_vf_detection: | |
8556 | #endif /* CONFIG_PCI_IOV */ | |
58cf663f MR |
8557 | if (!test_bit(__IXGBE_SERVICE_INITED, &adapter->state)) |
8558 | return PCI_ERS_RESULT_DISCONNECT; | |
8559 | ||
41c62843 | 8560 | rtnl_lock(); |
9a799d71 AK |
8561 | netif_device_detach(netdev); |
8562 | ||
41c62843 MR |
8563 | if (state == pci_channel_io_perm_failure) { |
8564 | rtnl_unlock(); | |
3044b8d1 | 8565 | return PCI_ERS_RESULT_DISCONNECT; |
41c62843 | 8566 | } |
3044b8d1 | 8567 | |
9a799d71 AK |
8568 | if (netif_running(netdev)) |
8569 | ixgbe_down(adapter); | |
41c62843 MR |
8570 | |
8571 | if (!test_and_set_bit(__IXGBE_DISABLED, &adapter->state)) | |
8572 | pci_disable_device(pdev); | |
8573 | rtnl_unlock(); | |
9a799d71 | 8574 | |
b4617240 | 8575 | /* Request a slot reset. */ |
9a799d71 AK |
8576 | return PCI_ERS_RESULT_NEED_RESET; |
8577 | } | |
8578 | ||
8579 | /** | |
8580 | * ixgbe_io_slot_reset - called after the pci bus has been reset. | |
8581 | * @pdev: Pointer to PCI device | |
8582 | * | |
8583 | * Restart the card from scratch, as if from a cold-boot. | |
8584 | */ | |
8585 | static pci_ers_result_t ixgbe_io_slot_reset(struct pci_dev *pdev) | |
8586 | { | |
c60fbb00 | 8587 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
6fabd715 PWJ |
8588 | pci_ers_result_t result; |
8589 | int err; | |
9a799d71 | 8590 | |
9ce77666 | 8591 | if (pci_enable_device_mem(pdev)) { |
396e799c | 8592 | e_err(probe, "Cannot re-enable PCI device after reset.\n"); |
6fabd715 PWJ |
8593 | result = PCI_ERS_RESULT_DISCONNECT; |
8594 | } else { | |
4e857c58 | 8595 | smp_mb__before_atomic(); |
41c62843 | 8596 | clear_bit(__IXGBE_DISABLED, &adapter->state); |
0391bbe3 | 8597 | adapter->hw.hw_addr = adapter->io_addr; |
6fabd715 PWJ |
8598 | pci_set_master(pdev); |
8599 | pci_restore_state(pdev); | |
c0e1f68b | 8600 | pci_save_state(pdev); |
9a799d71 | 8601 | |
dd4d8ca6 | 8602 | pci_wake_from_d3(pdev, false); |
9a799d71 | 8603 | |
6fabd715 | 8604 | ixgbe_reset(adapter); |
88512539 | 8605 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); |
6fabd715 PWJ |
8606 | result = PCI_ERS_RESULT_RECOVERED; |
8607 | } | |
8608 | ||
8609 | err = pci_cleanup_aer_uncorrect_error_status(pdev); | |
8610 | if (err) { | |
849c4542 ET |
8611 | e_dev_err("pci_cleanup_aer_uncorrect_error_status " |
8612 | "failed 0x%0x\n", err); | |
6fabd715 PWJ |
8613 | /* non-fatal, continue */ |
8614 | } | |
9a799d71 | 8615 | |
6fabd715 | 8616 | return result; |
9a799d71 AK |
8617 | } |
8618 | ||
8619 | /** | |
8620 | * ixgbe_io_resume - called when traffic can start flowing again. | |
8621 | * @pdev: Pointer to PCI device | |
8622 | * | |
8623 | * This callback is called when the error recovery driver tells us that | |
8624 | * its OK to resume normal operation. | |
8625 | */ | |
8626 | static void ixgbe_io_resume(struct pci_dev *pdev) | |
8627 | { | |
c60fbb00 AD |
8628 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
8629 | struct net_device *netdev = adapter->netdev; | |
9a799d71 | 8630 | |
83c61fa9 GR |
8631 | #ifdef CONFIG_PCI_IOV |
8632 | if (adapter->vferr_refcount) { | |
8633 | e_info(drv, "Resuming after VF err\n"); | |
8634 | adapter->vferr_refcount--; | |
8635 | return; | |
8636 | } | |
8637 | ||
8638 | #endif | |
c7ccde0f AD |
8639 | if (netif_running(netdev)) |
8640 | ixgbe_up(adapter); | |
9a799d71 AK |
8641 | |
8642 | netif_device_attach(netdev); | |
9a799d71 AK |
8643 | } |
8644 | ||
3646f0e5 | 8645 | static const struct pci_error_handlers ixgbe_err_handler = { |
9a799d71 AK |
8646 | .error_detected = ixgbe_io_error_detected, |
8647 | .slot_reset = ixgbe_io_slot_reset, | |
8648 | .resume = ixgbe_io_resume, | |
8649 | }; | |
8650 | ||
8651 | static struct pci_driver ixgbe_driver = { | |
8652 | .name = ixgbe_driver_name, | |
8653 | .id_table = ixgbe_pci_tbl, | |
8654 | .probe = ixgbe_probe, | |
9f9a12f8 | 8655 | .remove = ixgbe_remove, |
9a799d71 AK |
8656 | #ifdef CONFIG_PM |
8657 | .suspend = ixgbe_suspend, | |
8658 | .resume = ixgbe_resume, | |
8659 | #endif | |
8660 | .shutdown = ixgbe_shutdown, | |
da36b647 | 8661 | .sriov_configure = ixgbe_pci_sriov_configure, |
9a799d71 AK |
8662 | .err_handler = &ixgbe_err_handler |
8663 | }; | |
8664 | ||
8665 | /** | |
8666 | * ixgbe_init_module - Driver Registration Routine | |
8667 | * | |
8668 | * ixgbe_init_module is the first routine called when the driver is | |
8669 | * loaded. All it does is register with the PCI subsystem. | |
8670 | **/ | |
8671 | static int __init ixgbe_init_module(void) | |
8672 | { | |
8673 | int ret; | |
c7689578 | 8674 | pr_info("%s - version %s\n", ixgbe_driver_string, ixgbe_driver_version); |
849c4542 | 8675 | pr_info("%s\n", ixgbe_copyright); |
9a799d71 | 8676 | |
00949167 | 8677 | ixgbe_dbg_init(); |
00949167 | 8678 | |
f01fc1a8 JK |
8679 | ret = pci_register_driver(&ixgbe_driver); |
8680 | if (ret) { | |
f01fc1a8 | 8681 | ixgbe_dbg_exit(); |
f01fc1a8 JK |
8682 | return ret; |
8683 | } | |
8684 | ||
5dd2d332 | 8685 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd | 8686 | dca_register_notify(&dca_notifier); |
bd0362dd | 8687 | #endif |
5dd2d332 | 8688 | |
f01fc1a8 | 8689 | return 0; |
9a799d71 | 8690 | } |
b4617240 | 8691 | |
9a799d71 AK |
8692 | module_init(ixgbe_init_module); |
8693 | ||
8694 | /** | |
8695 | * ixgbe_exit_module - Driver Exit Cleanup Routine | |
8696 | * | |
8697 | * ixgbe_exit_module is called just before the driver is removed | |
8698 | * from memory. | |
8699 | **/ | |
8700 | static void __exit ixgbe_exit_module(void) | |
8701 | { | |
5dd2d332 | 8702 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd JC |
8703 | dca_unregister_notify(&dca_notifier); |
8704 | #endif | |
9a799d71 | 8705 | pci_unregister_driver(&ixgbe_driver); |
00949167 | 8706 | |
00949167 | 8707 | ixgbe_dbg_exit(); |
00949167 | 8708 | |
1a51502b | 8709 | rcu_barrier(); /* Wait for completion of call_rcu()'s */ |
9a799d71 | 8710 | } |
bd0362dd | 8711 | |
5dd2d332 | 8712 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd | 8713 | static int ixgbe_notify_dca(struct notifier_block *nb, unsigned long event, |
e8e9f696 | 8714 | void *p) |
bd0362dd JC |
8715 | { |
8716 | int ret_val; | |
8717 | ||
8718 | ret_val = driver_for_each_device(&ixgbe_driver.driver, NULL, &event, | |
e8e9f696 | 8719 | __ixgbe_notify_dca); |
bd0362dd JC |
8720 | |
8721 | return ret_val ? NOTIFY_BAD : NOTIFY_DONE; | |
8722 | } | |
b453368d | 8723 | |
5dd2d332 | 8724 | #endif /* CONFIG_IXGBE_DCA */ |
849c4542 | 8725 | |
9a799d71 AK |
8726 | module_exit(ixgbe_exit_module); |
8727 | ||
8728 | /* ixgbe_main.c */ |