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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 | */ | |
a3aa1884 | 87 | static DEFINE_PCI_DEVICE_TABLE(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 | ||
304 | void ixgbe_check_remove(struct ixgbe_hw *hw, u32 reg) | |
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 | ||
14438464 MR |
323 | static bool ixgbe_check_cfg_remove(struct ixgbe_hw *hw, struct pci_dev *pdev) |
324 | { | |
325 | u16 value; | |
326 | ||
327 | pci_read_config_word(pdev, PCI_VENDOR_ID, &value); | |
328 | if (value == IXGBE_FAILED_READ_CFG_WORD) { | |
329 | ixgbe_remove_adapter(hw); | |
330 | return true; | |
331 | } | |
332 | return false; | |
333 | } | |
334 | ||
335 | u16 ixgbe_read_pci_cfg_word(struct ixgbe_hw *hw, u32 reg) | |
336 | { | |
337 | struct ixgbe_adapter *adapter = hw->back; | |
338 | u16 value; | |
339 | ||
340 | if (ixgbe_removed(hw->hw_addr)) | |
341 | return IXGBE_FAILED_READ_CFG_WORD; | |
342 | pci_read_config_word(adapter->pdev, reg, &value); | |
343 | if (value == IXGBE_FAILED_READ_CFG_WORD && | |
344 | ixgbe_check_cfg_remove(hw, adapter->pdev)) | |
345 | return IXGBE_FAILED_READ_CFG_WORD; | |
346 | return value; | |
347 | } | |
348 | ||
349 | #ifdef CONFIG_PCI_IOV | |
350 | static u32 ixgbe_read_pci_cfg_dword(struct ixgbe_hw *hw, u32 reg) | |
351 | { | |
352 | struct ixgbe_adapter *adapter = hw->back; | |
353 | u32 value; | |
354 | ||
355 | if (ixgbe_removed(hw->hw_addr)) | |
356 | return IXGBE_FAILED_READ_CFG_DWORD; | |
357 | pci_read_config_dword(adapter->pdev, reg, &value); | |
358 | if (value == IXGBE_FAILED_READ_CFG_DWORD && | |
359 | ixgbe_check_cfg_remove(hw, adapter->pdev)) | |
360 | return IXGBE_FAILED_READ_CFG_DWORD; | |
361 | return value; | |
362 | } | |
363 | #endif /* CONFIG_PCI_IOV */ | |
364 | ||
ed19231c JK |
365 | void ixgbe_write_pci_cfg_word(struct ixgbe_hw *hw, u32 reg, u16 value) |
366 | { | |
367 | struct ixgbe_adapter *adapter = hw->back; | |
368 | ||
369 | if (ixgbe_removed(hw->hw_addr)) | |
370 | return; | |
371 | pci_write_config_word(adapter->pdev, reg, value); | |
372 | } | |
373 | ||
7086400d AD |
374 | static void ixgbe_service_event_complete(struct ixgbe_adapter *adapter) |
375 | { | |
376 | BUG_ON(!test_bit(__IXGBE_SERVICE_SCHED, &adapter->state)); | |
377 | ||
52f33af8 | 378 | /* flush memory to make sure state is correct before next watchdog */ |
7086400d AD |
379 | smp_mb__before_clear_bit(); |
380 | clear_bit(__IXGBE_SERVICE_SCHED, &adapter->state); | |
381 | } | |
382 | ||
dcd79aeb TI |
383 | struct ixgbe_reg_info { |
384 | u32 ofs; | |
385 | char *name; | |
386 | }; | |
387 | ||
388 | static const struct ixgbe_reg_info ixgbe_reg_info_tbl[] = { | |
389 | ||
390 | /* General Registers */ | |
391 | {IXGBE_CTRL, "CTRL"}, | |
392 | {IXGBE_STATUS, "STATUS"}, | |
393 | {IXGBE_CTRL_EXT, "CTRL_EXT"}, | |
394 | ||
395 | /* Interrupt Registers */ | |
396 | {IXGBE_EICR, "EICR"}, | |
397 | ||
398 | /* RX Registers */ | |
399 | {IXGBE_SRRCTL(0), "SRRCTL"}, | |
400 | {IXGBE_DCA_RXCTRL(0), "DRXCTL"}, | |
401 | {IXGBE_RDLEN(0), "RDLEN"}, | |
402 | {IXGBE_RDH(0), "RDH"}, | |
403 | {IXGBE_RDT(0), "RDT"}, | |
404 | {IXGBE_RXDCTL(0), "RXDCTL"}, | |
405 | {IXGBE_RDBAL(0), "RDBAL"}, | |
406 | {IXGBE_RDBAH(0), "RDBAH"}, | |
407 | ||
408 | /* TX Registers */ | |
409 | {IXGBE_TDBAL(0), "TDBAL"}, | |
410 | {IXGBE_TDBAH(0), "TDBAH"}, | |
411 | {IXGBE_TDLEN(0), "TDLEN"}, | |
412 | {IXGBE_TDH(0), "TDH"}, | |
413 | {IXGBE_TDT(0), "TDT"}, | |
414 | {IXGBE_TXDCTL(0), "TXDCTL"}, | |
415 | ||
416 | /* List Terminator */ | |
417 | {} | |
418 | }; | |
419 | ||
420 | ||
421 | /* | |
422 | * ixgbe_regdump - register printout routine | |
423 | */ | |
424 | static void ixgbe_regdump(struct ixgbe_hw *hw, struct ixgbe_reg_info *reginfo) | |
425 | { | |
426 | int i = 0, j = 0; | |
427 | char rname[16]; | |
428 | u32 regs[64]; | |
429 | ||
430 | switch (reginfo->ofs) { | |
431 | case IXGBE_SRRCTL(0): | |
432 | for (i = 0; i < 64; i++) | |
433 | regs[i] = IXGBE_READ_REG(hw, IXGBE_SRRCTL(i)); | |
434 | break; | |
435 | case IXGBE_DCA_RXCTRL(0): | |
436 | for (i = 0; i < 64; i++) | |
437 | regs[i] = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i)); | |
438 | break; | |
439 | case IXGBE_RDLEN(0): | |
440 | for (i = 0; i < 64; i++) | |
441 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDLEN(i)); | |
442 | break; | |
443 | case IXGBE_RDH(0): | |
444 | for (i = 0; i < 64; i++) | |
445 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDH(i)); | |
446 | break; | |
447 | case IXGBE_RDT(0): | |
448 | for (i = 0; i < 64; i++) | |
449 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDT(i)); | |
450 | break; | |
451 | case IXGBE_RXDCTL(0): | |
452 | for (i = 0; i < 64; i++) | |
453 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i)); | |
454 | break; | |
455 | case IXGBE_RDBAL(0): | |
456 | for (i = 0; i < 64; i++) | |
457 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDBAL(i)); | |
458 | break; | |
459 | case IXGBE_RDBAH(0): | |
460 | for (i = 0; i < 64; i++) | |
461 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDBAH(i)); | |
462 | break; | |
463 | case IXGBE_TDBAL(0): | |
464 | for (i = 0; i < 64; i++) | |
465 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDBAL(i)); | |
466 | break; | |
467 | case IXGBE_TDBAH(0): | |
468 | for (i = 0; i < 64; i++) | |
469 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDBAH(i)); | |
470 | break; | |
471 | case IXGBE_TDLEN(0): | |
472 | for (i = 0; i < 64; i++) | |
473 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDLEN(i)); | |
474 | break; | |
475 | case IXGBE_TDH(0): | |
476 | for (i = 0; i < 64; i++) | |
477 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDH(i)); | |
478 | break; | |
479 | case IXGBE_TDT(0): | |
480 | for (i = 0; i < 64; i++) | |
481 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDT(i)); | |
482 | break; | |
483 | case IXGBE_TXDCTL(0): | |
484 | for (i = 0; i < 64; i++) | |
485 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TXDCTL(i)); | |
486 | break; | |
487 | default: | |
c7689578 | 488 | pr_info("%-15s %08x\n", reginfo->name, |
dcd79aeb TI |
489 | IXGBE_READ_REG(hw, reginfo->ofs)); |
490 | return; | |
491 | } | |
492 | ||
493 | for (i = 0; i < 8; i++) { | |
494 | snprintf(rname, 16, "%s[%d-%d]", reginfo->name, i*8, i*8+7); | |
c7689578 | 495 | pr_err("%-15s", rname); |
dcd79aeb | 496 | for (j = 0; j < 8; j++) |
c7689578 JP |
497 | pr_cont(" %08x", regs[i*8+j]); |
498 | pr_cont("\n"); | |
dcd79aeb TI |
499 | } |
500 | ||
501 | } | |
502 | ||
503 | /* | |
504 | * ixgbe_dump - Print registers, tx-rings and rx-rings | |
505 | */ | |
506 | static void ixgbe_dump(struct ixgbe_adapter *adapter) | |
507 | { | |
508 | struct net_device *netdev = adapter->netdev; | |
509 | struct ixgbe_hw *hw = &adapter->hw; | |
510 | struct ixgbe_reg_info *reginfo; | |
511 | int n = 0; | |
512 | struct ixgbe_ring *tx_ring; | |
729739b7 | 513 | struct ixgbe_tx_buffer *tx_buffer; |
dcd79aeb TI |
514 | union ixgbe_adv_tx_desc *tx_desc; |
515 | struct my_u0 { u64 a; u64 b; } *u0; | |
516 | struct ixgbe_ring *rx_ring; | |
517 | union ixgbe_adv_rx_desc *rx_desc; | |
518 | struct ixgbe_rx_buffer *rx_buffer_info; | |
519 | u32 staterr; | |
520 | int i = 0; | |
521 | ||
522 | if (!netif_msg_hw(adapter)) | |
523 | return; | |
524 | ||
525 | /* Print netdevice Info */ | |
526 | if (netdev) { | |
527 | dev_info(&adapter->pdev->dev, "Net device Info\n"); | |
c7689578 | 528 | pr_info("Device Name state " |
dcd79aeb | 529 | "trans_start last_rx\n"); |
c7689578 JP |
530 | pr_info("%-15s %016lX %016lX %016lX\n", |
531 | netdev->name, | |
532 | netdev->state, | |
533 | netdev->trans_start, | |
534 | netdev->last_rx); | |
dcd79aeb TI |
535 | } |
536 | ||
537 | /* Print Registers */ | |
538 | dev_info(&adapter->pdev->dev, "Register Dump\n"); | |
c7689578 | 539 | pr_info(" Register Name Value\n"); |
dcd79aeb TI |
540 | for (reginfo = (struct ixgbe_reg_info *)ixgbe_reg_info_tbl; |
541 | reginfo->name; reginfo++) { | |
542 | ixgbe_regdump(hw, reginfo); | |
543 | } | |
544 | ||
545 | /* Print TX Ring Summary */ | |
546 | if (!netdev || !netif_running(netdev)) | |
547 | goto exit; | |
548 | ||
549 | dev_info(&adapter->pdev->dev, "TX Rings Summary\n"); | |
8ad88e37 JH |
550 | pr_info(" %s %s %s %s\n", |
551 | "Queue [NTU] [NTC] [bi(ntc)->dma ]", | |
552 | "leng", "ntw", "timestamp"); | |
dcd79aeb TI |
553 | for (n = 0; n < adapter->num_tx_queues; n++) { |
554 | tx_ring = adapter->tx_ring[n]; | |
729739b7 | 555 | tx_buffer = &tx_ring->tx_buffer_info[tx_ring->next_to_clean]; |
8ad88e37 | 556 | pr_info(" %5d %5X %5X %016llX %08X %p %016llX\n", |
dcd79aeb | 557 | n, tx_ring->next_to_use, tx_ring->next_to_clean, |
729739b7 AD |
558 | (u64)dma_unmap_addr(tx_buffer, dma), |
559 | dma_unmap_len(tx_buffer, len), | |
560 | tx_buffer->next_to_watch, | |
561 | (u64)tx_buffer->time_stamp); | |
dcd79aeb TI |
562 | } |
563 | ||
564 | /* Print TX Rings */ | |
565 | if (!netif_msg_tx_done(adapter)) | |
566 | goto rx_ring_summary; | |
567 | ||
568 | dev_info(&adapter->pdev->dev, "TX Rings Dump\n"); | |
569 | ||
570 | /* Transmit Descriptor Formats | |
571 | * | |
39ac868a | 572 | * 82598 Advanced Transmit Descriptor |
dcd79aeb TI |
573 | * +--------------------------------------------------------------+ |
574 | * 0 | Buffer Address [63:0] | | |
575 | * +--------------------------------------------------------------+ | |
39ac868a | 576 | * 8 | PAYLEN | POPTS | IDX | STA | DCMD |DTYP | RSV | DTALEN | |
dcd79aeb TI |
577 | * +--------------------------------------------------------------+ |
578 | * 63 46 45 40 39 36 35 32 31 24 23 20 19 0 | |
39ac868a JH |
579 | * |
580 | * 82598 Advanced Transmit Descriptor (Write-Back Format) | |
581 | * +--------------------------------------------------------------+ | |
582 | * 0 | RSV [63:0] | | |
583 | * +--------------------------------------------------------------+ | |
584 | * 8 | RSV | STA | NXTSEQ | | |
585 | * +--------------------------------------------------------------+ | |
586 | * 63 36 35 32 31 0 | |
587 | * | |
588 | * 82599+ Advanced Transmit Descriptor | |
589 | * +--------------------------------------------------------------+ | |
590 | * 0 | Buffer Address [63:0] | | |
591 | * +--------------------------------------------------------------+ | |
592 | * 8 |PAYLEN |POPTS|CC|IDX |STA |DCMD |DTYP |MAC |RSV |DTALEN | | |
593 | * +--------------------------------------------------------------+ | |
594 | * 63 46 45 40 39 38 36 35 32 31 24 23 20 19 18 17 16 15 0 | |
595 | * | |
596 | * 82599+ Advanced Transmit Descriptor (Write-Back Format) | |
597 | * +--------------------------------------------------------------+ | |
598 | * 0 | RSV [63:0] | | |
599 | * +--------------------------------------------------------------+ | |
600 | * 8 | RSV | STA | RSV | | |
601 | * +--------------------------------------------------------------+ | |
602 | * 63 36 35 32 31 0 | |
dcd79aeb TI |
603 | */ |
604 | ||
605 | for (n = 0; n < adapter->num_tx_queues; n++) { | |
606 | tx_ring = adapter->tx_ring[n]; | |
c7689578 JP |
607 | pr_info("------------------------------------\n"); |
608 | pr_info("TX QUEUE INDEX = %d\n", tx_ring->queue_index); | |
609 | pr_info("------------------------------------\n"); | |
8ad88e37 JH |
610 | pr_info("%s%s %s %s %s %s\n", |
611 | "T [desc] [address 63:0 ] ", | |
612 | "[PlPOIdStDDt Ln] [bi->dma ] ", | |
613 | "leng", "ntw", "timestamp", "bi->skb"); | |
dcd79aeb TI |
614 | |
615 | for (i = 0; tx_ring->desc && (i < tx_ring->count); i++) { | |
e4f74028 | 616 | tx_desc = IXGBE_TX_DESC(tx_ring, i); |
729739b7 | 617 | tx_buffer = &tx_ring->tx_buffer_info[i]; |
dcd79aeb | 618 | u0 = (struct my_u0 *)tx_desc; |
8ad88e37 JH |
619 | if (dma_unmap_len(tx_buffer, len) > 0) { |
620 | pr_info("T [0x%03X] %016llX %016llX %016llX %08X %p %016llX %p", | |
621 | i, | |
622 | le64_to_cpu(u0->a), | |
623 | le64_to_cpu(u0->b), | |
624 | (u64)dma_unmap_addr(tx_buffer, dma), | |
729739b7 | 625 | dma_unmap_len(tx_buffer, len), |
8ad88e37 JH |
626 | tx_buffer->next_to_watch, |
627 | (u64)tx_buffer->time_stamp, | |
628 | tx_buffer->skb); | |
629 | if (i == tx_ring->next_to_use && | |
630 | i == tx_ring->next_to_clean) | |
631 | pr_cont(" NTC/U\n"); | |
632 | else if (i == tx_ring->next_to_use) | |
633 | pr_cont(" NTU\n"); | |
634 | else if (i == tx_ring->next_to_clean) | |
635 | pr_cont(" NTC\n"); | |
636 | else | |
637 | pr_cont("\n"); | |
638 | ||
639 | if (netif_msg_pktdata(adapter) && | |
640 | tx_buffer->skb) | |
641 | print_hex_dump(KERN_INFO, "", | |
642 | DUMP_PREFIX_ADDRESS, 16, 1, | |
643 | tx_buffer->skb->data, | |
644 | dma_unmap_len(tx_buffer, len), | |
645 | true); | |
646 | } | |
dcd79aeb TI |
647 | } |
648 | } | |
649 | ||
650 | /* Print RX Rings Summary */ | |
651 | rx_ring_summary: | |
652 | dev_info(&adapter->pdev->dev, "RX Rings Summary\n"); | |
c7689578 | 653 | pr_info("Queue [NTU] [NTC]\n"); |
dcd79aeb TI |
654 | for (n = 0; n < adapter->num_rx_queues; n++) { |
655 | rx_ring = adapter->rx_ring[n]; | |
c7689578 JP |
656 | pr_info("%5d %5X %5X\n", |
657 | n, rx_ring->next_to_use, rx_ring->next_to_clean); | |
dcd79aeb TI |
658 | } |
659 | ||
660 | /* Print RX Rings */ | |
661 | if (!netif_msg_rx_status(adapter)) | |
662 | goto exit; | |
663 | ||
664 | dev_info(&adapter->pdev->dev, "RX Rings Dump\n"); | |
665 | ||
39ac868a JH |
666 | /* Receive Descriptor Formats |
667 | * | |
668 | * 82598 Advanced Receive Descriptor (Read) Format | |
dcd79aeb TI |
669 | * 63 1 0 |
670 | * +-----------------------------------------------------+ | |
671 | * 0 | Packet Buffer Address [63:1] |A0/NSE| | |
672 | * +----------------------------------------------+------+ | |
673 | * 8 | Header Buffer Address [63:1] | DD | | |
674 | * +-----------------------------------------------------+ | |
675 | * | |
676 | * | |
39ac868a | 677 | * 82598 Advanced Receive Descriptor (Write-Back) Format |
dcd79aeb TI |
678 | * |
679 | * 63 48 47 32 31 30 21 20 16 15 4 3 0 | |
680 | * +------------------------------------------------------+ | |
39ac868a JH |
681 | * 0 | RSS Hash / |SPH| HDR_LEN | RSV |Packet| RSS | |
682 | * | Packet | IP | | | | Type | Type | | |
683 | * | Checksum | Ident | | | | | | | |
dcd79aeb TI |
684 | * +------------------------------------------------------+ |
685 | * 8 | VLAN Tag | Length | Extended Error | Extended Status | | |
686 | * +------------------------------------------------------+ | |
687 | * 63 48 47 32 31 20 19 0 | |
39ac868a JH |
688 | * |
689 | * 82599+ Advanced Receive Descriptor (Read) Format | |
690 | * 63 1 0 | |
691 | * +-----------------------------------------------------+ | |
692 | * 0 | Packet Buffer Address [63:1] |A0/NSE| | |
693 | * +----------------------------------------------+------+ | |
694 | * 8 | Header Buffer Address [63:1] | DD | | |
695 | * +-----------------------------------------------------+ | |
696 | * | |
697 | * | |
698 | * 82599+ Advanced Receive Descriptor (Write-Back) Format | |
699 | * | |
700 | * 63 48 47 32 31 30 21 20 17 16 4 3 0 | |
701 | * +------------------------------------------------------+ | |
702 | * 0 |RSS / Frag Checksum|SPH| HDR_LEN |RSC- |Packet| RSS | | |
703 | * |/ RTT / PCoE_PARAM | | | CNT | Type | Type | | |
704 | * |/ Flow Dir Flt ID | | | | | | | |
705 | * +------------------------------------------------------+ | |
706 | * 8 | VLAN Tag | Length |Extended Error| Xtnd Status/NEXTP | | |
707 | * +------------------------------------------------------+ | |
708 | * 63 48 47 32 31 20 19 0 | |
dcd79aeb | 709 | */ |
39ac868a | 710 | |
dcd79aeb TI |
711 | for (n = 0; n < adapter->num_rx_queues; n++) { |
712 | rx_ring = adapter->rx_ring[n]; | |
c7689578 JP |
713 | pr_info("------------------------------------\n"); |
714 | pr_info("RX QUEUE INDEX = %d\n", rx_ring->queue_index); | |
715 | pr_info("------------------------------------\n"); | |
8ad88e37 JH |
716 | pr_info("%s%s%s", |
717 | "R [desc] [ PktBuf A0] ", | |
718 | "[ HeadBuf DD] [bi->dma ] [bi->skb ] ", | |
dcd79aeb | 719 | "<-- Adv Rx Read format\n"); |
8ad88e37 JH |
720 | pr_info("%s%s%s", |
721 | "RWB[desc] [PcsmIpSHl PtRs] ", | |
722 | "[vl er S cks ln] ---------------- [bi->skb ] ", | |
dcd79aeb TI |
723 | "<-- Adv Rx Write-Back format\n"); |
724 | ||
725 | for (i = 0; i < rx_ring->count; i++) { | |
726 | rx_buffer_info = &rx_ring->rx_buffer_info[i]; | |
e4f74028 | 727 | rx_desc = IXGBE_RX_DESC(rx_ring, i); |
dcd79aeb TI |
728 | u0 = (struct my_u0 *)rx_desc; |
729 | staterr = le32_to_cpu(rx_desc->wb.upper.status_error); | |
730 | if (staterr & IXGBE_RXD_STAT_DD) { | |
731 | /* Descriptor Done */ | |
c7689578 | 732 | pr_info("RWB[0x%03X] %016llX " |
dcd79aeb TI |
733 | "%016llX ---------------- %p", i, |
734 | le64_to_cpu(u0->a), | |
735 | le64_to_cpu(u0->b), | |
736 | rx_buffer_info->skb); | |
737 | } else { | |
c7689578 | 738 | pr_info("R [0x%03X] %016llX " |
dcd79aeb TI |
739 | "%016llX %016llX %p", i, |
740 | le64_to_cpu(u0->a), | |
741 | le64_to_cpu(u0->b), | |
742 | (u64)rx_buffer_info->dma, | |
743 | rx_buffer_info->skb); | |
744 | ||
9c50c035 ET |
745 | if (netif_msg_pktdata(adapter) && |
746 | rx_buffer_info->dma) { | |
dcd79aeb TI |
747 | print_hex_dump(KERN_INFO, "", |
748 | DUMP_PREFIX_ADDRESS, 16, 1, | |
9c50c035 ET |
749 | page_address(rx_buffer_info->page) + |
750 | rx_buffer_info->page_offset, | |
f800326d | 751 | ixgbe_rx_bufsz(rx_ring), true); |
dcd79aeb TI |
752 | } |
753 | } | |
754 | ||
755 | if (i == rx_ring->next_to_use) | |
c7689578 | 756 | pr_cont(" NTU\n"); |
dcd79aeb | 757 | else if (i == rx_ring->next_to_clean) |
c7689578 | 758 | pr_cont(" NTC\n"); |
dcd79aeb | 759 | else |
c7689578 | 760 | pr_cont("\n"); |
dcd79aeb TI |
761 | |
762 | } | |
763 | } | |
764 | ||
765 | exit: | |
766 | return; | |
767 | } | |
768 | ||
5eba3699 AV |
769 | static void ixgbe_release_hw_control(struct ixgbe_adapter *adapter) |
770 | { | |
771 | u32 ctrl_ext; | |
772 | ||
773 | /* Let firmware take over control of h/w */ | |
774 | ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT); | |
775 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT, | |
e8e9f696 | 776 | ctrl_ext & ~IXGBE_CTRL_EXT_DRV_LOAD); |
5eba3699 AV |
777 | } |
778 | ||
779 | static void ixgbe_get_hw_control(struct ixgbe_adapter *adapter) | |
780 | { | |
781 | u32 ctrl_ext; | |
782 | ||
783 | /* Let firmware know the driver has taken over */ | |
784 | ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT); | |
785 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT, | |
e8e9f696 | 786 | ctrl_ext | IXGBE_CTRL_EXT_DRV_LOAD); |
5eba3699 | 787 | } |
9a799d71 | 788 | |
49ce9c2c | 789 | /** |
e8e26350 PW |
790 | * ixgbe_set_ivar - set the IVAR registers, mapping interrupt causes to vectors |
791 | * @adapter: pointer to adapter struct | |
792 | * @direction: 0 for Rx, 1 for Tx, -1 for other causes | |
793 | * @queue: queue to map the corresponding interrupt to | |
794 | * @msix_vector: the vector to map to the corresponding queue | |
795 | * | |
796 | */ | |
797 | static void ixgbe_set_ivar(struct ixgbe_adapter *adapter, s8 direction, | |
e8e9f696 | 798 | u8 queue, u8 msix_vector) |
9a799d71 AK |
799 | { |
800 | u32 ivar, index; | |
e8e26350 PW |
801 | struct ixgbe_hw *hw = &adapter->hw; |
802 | switch (hw->mac.type) { | |
803 | case ixgbe_mac_82598EB: | |
804 | msix_vector |= IXGBE_IVAR_ALLOC_VAL; | |
805 | if (direction == -1) | |
806 | direction = 0; | |
807 | index = (((direction * 64) + queue) >> 2) & 0x1F; | |
808 | ivar = IXGBE_READ_REG(hw, IXGBE_IVAR(index)); | |
809 | ivar &= ~(0xFF << (8 * (queue & 0x3))); | |
810 | ivar |= (msix_vector << (8 * (queue & 0x3))); | |
811 | IXGBE_WRITE_REG(hw, IXGBE_IVAR(index), ivar); | |
812 | break; | |
813 | case ixgbe_mac_82599EB: | |
b93a2226 | 814 | case ixgbe_mac_X540: |
e8e26350 PW |
815 | if (direction == -1) { |
816 | /* other causes */ | |
817 | msix_vector |= IXGBE_IVAR_ALLOC_VAL; | |
818 | index = ((queue & 1) * 8); | |
819 | ivar = IXGBE_READ_REG(&adapter->hw, IXGBE_IVAR_MISC); | |
820 | ivar &= ~(0xFF << index); | |
821 | ivar |= (msix_vector << index); | |
822 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_IVAR_MISC, ivar); | |
823 | break; | |
824 | } else { | |
825 | /* tx or rx causes */ | |
826 | msix_vector |= IXGBE_IVAR_ALLOC_VAL; | |
827 | index = ((16 * (queue & 1)) + (8 * direction)); | |
828 | ivar = IXGBE_READ_REG(hw, IXGBE_IVAR(queue >> 1)); | |
829 | ivar &= ~(0xFF << index); | |
830 | ivar |= (msix_vector << index); | |
831 | IXGBE_WRITE_REG(hw, IXGBE_IVAR(queue >> 1), ivar); | |
832 | break; | |
833 | } | |
834 | default: | |
835 | break; | |
836 | } | |
9a799d71 AK |
837 | } |
838 | ||
fe49f04a | 839 | static inline void ixgbe_irq_rearm_queues(struct ixgbe_adapter *adapter, |
e8e9f696 | 840 | u64 qmask) |
fe49f04a AD |
841 | { |
842 | u32 mask; | |
843 | ||
bd508178 AD |
844 | switch (adapter->hw.mac.type) { |
845 | case ixgbe_mac_82598EB: | |
fe49f04a AD |
846 | mask = (IXGBE_EIMS_RTX_QUEUE & qmask); |
847 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS, mask); | |
bd508178 AD |
848 | break; |
849 | case ixgbe_mac_82599EB: | |
b93a2226 | 850 | case ixgbe_mac_X540: |
fe49f04a AD |
851 | mask = (qmask & 0xFFFFFFFF); |
852 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS_EX(0), mask); | |
853 | mask = (qmask >> 32); | |
854 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS_EX(1), mask); | |
bd508178 AD |
855 | break; |
856 | default: | |
857 | break; | |
fe49f04a AD |
858 | } |
859 | } | |
860 | ||
729739b7 AD |
861 | void ixgbe_unmap_and_free_tx_resource(struct ixgbe_ring *ring, |
862 | struct ixgbe_tx_buffer *tx_buffer) | |
9a799d71 | 863 | { |
729739b7 AD |
864 | if (tx_buffer->skb) { |
865 | dev_kfree_skb_any(tx_buffer->skb); | |
866 | if (dma_unmap_len(tx_buffer, len)) | |
d3d00239 | 867 | dma_unmap_single(ring->dev, |
729739b7 AD |
868 | dma_unmap_addr(tx_buffer, dma), |
869 | dma_unmap_len(tx_buffer, len), | |
870 | DMA_TO_DEVICE); | |
871 | } else if (dma_unmap_len(tx_buffer, len)) { | |
872 | dma_unmap_page(ring->dev, | |
873 | dma_unmap_addr(tx_buffer, dma), | |
874 | dma_unmap_len(tx_buffer, len), | |
875 | DMA_TO_DEVICE); | |
e5a43549 | 876 | } |
729739b7 AD |
877 | tx_buffer->next_to_watch = NULL; |
878 | tx_buffer->skb = NULL; | |
879 | dma_unmap_len_set(tx_buffer, len, 0); | |
880 | /* tx_buffer must be completely set up in the transmit path */ | |
9a799d71 AK |
881 | } |
882 | ||
943561d3 | 883 | static void ixgbe_update_xoff_rx_lfc(struct ixgbe_adapter *adapter) |
c84d324c JF |
884 | { |
885 | struct ixgbe_hw *hw = &adapter->hw; | |
886 | struct ixgbe_hw_stats *hwstats = &adapter->stats; | |
c84d324c | 887 | int i; |
943561d3 | 888 | u32 data; |
c84d324c | 889 | |
943561d3 AD |
890 | if ((hw->fc.current_mode != ixgbe_fc_full) && |
891 | (hw->fc.current_mode != ixgbe_fc_rx_pause)) | |
892 | return; | |
c84d324c | 893 | |
943561d3 AD |
894 | switch (hw->mac.type) { |
895 | case ixgbe_mac_82598EB: | |
896 | data = IXGBE_READ_REG(hw, IXGBE_LXOFFRXC); | |
897 | break; | |
898 | default: | |
899 | data = IXGBE_READ_REG(hw, IXGBE_LXOFFRXCNT); | |
900 | } | |
901 | hwstats->lxoffrxc += data; | |
c84d324c | 902 | |
943561d3 AD |
903 | /* refill credits (no tx hang) if we received xoff */ |
904 | if (!data) | |
c84d324c | 905 | return; |
943561d3 AD |
906 | |
907 | for (i = 0; i < adapter->num_tx_queues; i++) | |
908 | clear_bit(__IXGBE_HANG_CHECK_ARMED, | |
909 | &adapter->tx_ring[i]->state); | |
910 | } | |
911 | ||
912 | static void ixgbe_update_xoff_received(struct ixgbe_adapter *adapter) | |
913 | { | |
914 | struct ixgbe_hw *hw = &adapter->hw; | |
915 | struct ixgbe_hw_stats *hwstats = &adapter->stats; | |
916 | u32 xoff[8] = {0}; | |
2afaa00d | 917 | u8 tc; |
943561d3 AD |
918 | int i; |
919 | bool pfc_en = adapter->dcb_cfg.pfc_mode_enable; | |
920 | ||
921 | if (adapter->ixgbe_ieee_pfc) | |
922 | pfc_en |= !!(adapter->ixgbe_ieee_pfc->pfc_en); | |
923 | ||
924 | if (!(adapter->flags & IXGBE_FLAG_DCB_ENABLED) || !pfc_en) { | |
925 | ixgbe_update_xoff_rx_lfc(adapter); | |
c84d324c | 926 | return; |
943561d3 | 927 | } |
c84d324c JF |
928 | |
929 | /* update stats for each tc, only valid with PFC enabled */ | |
930 | for (i = 0; i < MAX_TX_PACKET_BUFFERS; i++) { | |
2afaa00d PN |
931 | u32 pxoffrxc; |
932 | ||
c84d324c JF |
933 | switch (hw->mac.type) { |
934 | case ixgbe_mac_82598EB: | |
2afaa00d | 935 | pxoffrxc = IXGBE_READ_REG(hw, IXGBE_PXOFFRXC(i)); |
bd508178 | 936 | break; |
c84d324c | 937 | default: |
2afaa00d | 938 | pxoffrxc = IXGBE_READ_REG(hw, IXGBE_PXOFFRXCNT(i)); |
26f23d82 | 939 | } |
2afaa00d PN |
940 | hwstats->pxoffrxc[i] += pxoffrxc; |
941 | /* Get the TC for given UP */ | |
942 | tc = netdev_get_prio_tc_map(adapter->netdev, i); | |
943 | xoff[tc] += pxoffrxc; | |
c84d324c JF |
944 | } |
945 | ||
946 | /* disarm tx queues that have received xoff frames */ | |
947 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
948 | struct ixgbe_ring *tx_ring = adapter->tx_ring[i]; | |
c84d324c | 949 | |
2afaa00d | 950 | tc = tx_ring->dcb_tc; |
c84d324c JF |
951 | if (xoff[tc]) |
952 | clear_bit(__IXGBE_HANG_CHECK_ARMED, &tx_ring->state); | |
26f23d82 | 953 | } |
26f23d82 YZ |
954 | } |
955 | ||
c84d324c | 956 | static u64 ixgbe_get_tx_completed(struct ixgbe_ring *ring) |
9a799d71 | 957 | { |
7d7ce682 | 958 | return ring->stats.packets; |
c84d324c JF |
959 | } |
960 | ||
961 | static u64 ixgbe_get_tx_pending(struct ixgbe_ring *ring) | |
962 | { | |
2a47fa45 JF |
963 | struct ixgbe_adapter *adapter; |
964 | struct ixgbe_hw *hw; | |
965 | u32 head, tail; | |
966 | ||
967 | if (ring->l2_accel_priv) | |
968 | adapter = ring->l2_accel_priv->real_adapter; | |
969 | else | |
970 | adapter = netdev_priv(ring->netdev); | |
e01c31a5 | 971 | |
2a47fa45 JF |
972 | hw = &adapter->hw; |
973 | head = IXGBE_READ_REG(hw, IXGBE_TDH(ring->reg_idx)); | |
974 | tail = IXGBE_READ_REG(hw, IXGBE_TDT(ring->reg_idx)); | |
c84d324c JF |
975 | |
976 | if (head != tail) | |
977 | return (head < tail) ? | |
978 | tail - head : (tail + ring->count - head); | |
979 | ||
980 | return 0; | |
981 | } | |
982 | ||
983 | static inline bool ixgbe_check_tx_hang(struct ixgbe_ring *tx_ring) | |
984 | { | |
985 | u32 tx_done = ixgbe_get_tx_completed(tx_ring); | |
986 | u32 tx_done_old = tx_ring->tx_stats.tx_done_old; | |
987 | u32 tx_pending = ixgbe_get_tx_pending(tx_ring); | |
988 | bool ret = false; | |
989 | ||
7d637bcc | 990 | clear_check_for_tx_hang(tx_ring); |
c84d324c JF |
991 | |
992 | /* | |
993 | * Check for a hung queue, but be thorough. This verifies | |
994 | * that a transmit has been completed since the previous | |
995 | * check AND there is at least one packet pending. The | |
996 | * ARMED bit is set to indicate a potential hang. The | |
997 | * bit is cleared if a pause frame is received to remove | |
998 | * false hang detection due to PFC or 802.3x frames. By | |
999 | * requiring this to fail twice we avoid races with | |
1000 | * pfc clearing the ARMED bit and conditions where we | |
1001 | * run the check_tx_hang logic with a transmit completion | |
1002 | * pending but without time to complete it yet. | |
1003 | */ | |
1004 | if ((tx_done_old == tx_done) && tx_pending) { | |
1005 | /* make sure it is true for two checks in a row */ | |
1006 | ret = test_and_set_bit(__IXGBE_HANG_CHECK_ARMED, | |
1007 | &tx_ring->state); | |
1008 | } else { | |
1009 | /* update completed stats and continue */ | |
1010 | tx_ring->tx_stats.tx_done_old = tx_done; | |
1011 | /* reset the countdown */ | |
1012 | clear_bit(__IXGBE_HANG_CHECK_ARMED, &tx_ring->state); | |
9a799d71 AK |
1013 | } |
1014 | ||
c84d324c | 1015 | return ret; |
9a799d71 AK |
1016 | } |
1017 | ||
c83c6cbd AD |
1018 | /** |
1019 | * ixgbe_tx_timeout_reset - initiate reset due to Tx timeout | |
1020 | * @adapter: driver private struct | |
1021 | **/ | |
1022 | static void ixgbe_tx_timeout_reset(struct ixgbe_adapter *adapter) | |
1023 | { | |
1024 | ||
1025 | /* Do the reset outside of interrupt context */ | |
1026 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { | |
1027 | adapter->flags2 |= IXGBE_FLAG2_RESET_REQUESTED; | |
12ff3f3b | 1028 | e_warn(drv, "initiating reset due to tx timeout\n"); |
c83c6cbd AD |
1029 | ixgbe_service_event_schedule(adapter); |
1030 | } | |
1031 | } | |
e01c31a5 | 1032 | |
9a799d71 AK |
1033 | /** |
1034 | * ixgbe_clean_tx_irq - Reclaim resources after transmit completes | |
fe49f04a | 1035 | * @q_vector: structure containing interrupt and ring information |
e01c31a5 | 1036 | * @tx_ring: tx ring to clean |
9a799d71 | 1037 | **/ |
fe49f04a | 1038 | static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector, |
e8e9f696 | 1039 | struct ixgbe_ring *tx_ring) |
9a799d71 | 1040 | { |
fe49f04a | 1041 | struct ixgbe_adapter *adapter = q_vector->adapter; |
d3d00239 AD |
1042 | struct ixgbe_tx_buffer *tx_buffer; |
1043 | union ixgbe_adv_tx_desc *tx_desc; | |
e01c31a5 | 1044 | unsigned int total_bytes = 0, total_packets = 0; |
59224555 | 1045 | unsigned int budget = q_vector->tx.work_limit; |
729739b7 AD |
1046 | unsigned int i = tx_ring->next_to_clean; |
1047 | ||
1048 | if (test_bit(__IXGBE_DOWN, &adapter->state)) | |
1049 | return true; | |
9a799d71 | 1050 | |
d3d00239 | 1051 | tx_buffer = &tx_ring->tx_buffer_info[i]; |
e4f74028 | 1052 | tx_desc = IXGBE_TX_DESC(tx_ring, i); |
729739b7 | 1053 | i -= tx_ring->count; |
12207e49 | 1054 | |
729739b7 | 1055 | do { |
d3d00239 AD |
1056 | union ixgbe_adv_tx_desc *eop_desc = tx_buffer->next_to_watch; |
1057 | ||
1058 | /* if next_to_watch is not set then there is no work pending */ | |
1059 | if (!eop_desc) | |
1060 | break; | |
1061 | ||
7f83a9e6 | 1062 | /* prevent any other reads prior to eop_desc */ |
7e63bf49 | 1063 | read_barrier_depends(); |
7f83a9e6 | 1064 | |
d3d00239 AD |
1065 | /* if DD is not set pending work has not been completed */ |
1066 | if (!(eop_desc->wb.status & cpu_to_le32(IXGBE_TXD_STAT_DD))) | |
1067 | break; | |
8ad494b0 | 1068 | |
d3d00239 AD |
1069 | /* clear next_to_watch to prevent false hangs */ |
1070 | tx_buffer->next_to_watch = NULL; | |
8ad494b0 | 1071 | |
091a6246 AD |
1072 | /* update the statistics for this packet */ |
1073 | total_bytes += tx_buffer->bytecount; | |
1074 | total_packets += tx_buffer->gso_segs; | |
1075 | ||
fd0db0ed AD |
1076 | /* free the skb */ |
1077 | dev_kfree_skb_any(tx_buffer->skb); | |
1078 | ||
729739b7 AD |
1079 | /* unmap skb header data */ |
1080 | dma_unmap_single(tx_ring->dev, | |
1081 | dma_unmap_addr(tx_buffer, dma), | |
1082 | dma_unmap_len(tx_buffer, len), | |
1083 | DMA_TO_DEVICE); | |
1084 | ||
fd0db0ed AD |
1085 | /* clear tx_buffer data */ |
1086 | tx_buffer->skb = NULL; | |
729739b7 | 1087 | dma_unmap_len_set(tx_buffer, len, 0); |
fd0db0ed | 1088 | |
729739b7 AD |
1089 | /* unmap remaining buffers */ |
1090 | while (tx_desc != eop_desc) { | |
d3d00239 AD |
1091 | tx_buffer++; |
1092 | tx_desc++; | |
8ad494b0 | 1093 | i++; |
729739b7 AD |
1094 | if (unlikely(!i)) { |
1095 | i -= tx_ring->count; | |
d3d00239 | 1096 | tx_buffer = tx_ring->tx_buffer_info; |
e4f74028 | 1097 | tx_desc = IXGBE_TX_DESC(tx_ring, 0); |
e092be60 | 1098 | } |
e01c31a5 | 1099 | |
729739b7 AD |
1100 | /* unmap any remaining paged data */ |
1101 | if (dma_unmap_len(tx_buffer, len)) { | |
1102 | dma_unmap_page(tx_ring->dev, | |
1103 | dma_unmap_addr(tx_buffer, dma), | |
1104 | dma_unmap_len(tx_buffer, len), | |
1105 | DMA_TO_DEVICE); | |
1106 | dma_unmap_len_set(tx_buffer, len, 0); | |
1107 | } | |
1108 | } | |
1109 | ||
1110 | /* move us one more past the eop_desc for start of next pkt */ | |
1111 | tx_buffer++; | |
1112 | tx_desc++; | |
1113 | i++; | |
1114 | if (unlikely(!i)) { | |
1115 | i -= tx_ring->count; | |
1116 | tx_buffer = tx_ring->tx_buffer_info; | |
1117 | tx_desc = IXGBE_TX_DESC(tx_ring, 0); | |
1118 | } | |
1119 | ||
1120 | /* issue prefetch for next Tx descriptor */ | |
1121 | prefetch(tx_desc); | |
12207e49 | 1122 | |
729739b7 AD |
1123 | /* update budget accounting */ |
1124 | budget--; | |
1125 | } while (likely(budget)); | |
1126 | ||
1127 | i += tx_ring->count; | |
9a799d71 | 1128 | tx_ring->next_to_clean = i; |
d3d00239 | 1129 | u64_stats_update_begin(&tx_ring->syncp); |
b953799e | 1130 | tx_ring->stats.bytes += total_bytes; |
bd198058 | 1131 | tx_ring->stats.packets += total_packets; |
d3d00239 | 1132 | u64_stats_update_end(&tx_ring->syncp); |
bd198058 AD |
1133 | q_vector->tx.total_bytes += total_bytes; |
1134 | q_vector->tx.total_packets += total_packets; | |
b953799e | 1135 | |
c84d324c JF |
1136 | if (check_for_tx_hang(tx_ring) && ixgbe_check_tx_hang(tx_ring)) { |
1137 | /* schedule immediate reset if we believe we hung */ | |
1138 | struct ixgbe_hw *hw = &adapter->hw; | |
c84d324c JF |
1139 | e_err(drv, "Detected Tx Unit Hang\n" |
1140 | " Tx Queue <%d>\n" | |
1141 | " TDH, TDT <%x>, <%x>\n" | |
1142 | " next_to_use <%x>\n" | |
1143 | " next_to_clean <%x>\n" | |
1144 | "tx_buffer_info[next_to_clean]\n" | |
1145 | " time_stamp <%lx>\n" | |
1146 | " jiffies <%lx>\n", | |
1147 | tx_ring->queue_index, | |
1148 | IXGBE_READ_REG(hw, IXGBE_TDH(tx_ring->reg_idx)), | |
1149 | IXGBE_READ_REG(hw, IXGBE_TDT(tx_ring->reg_idx)), | |
d3d00239 AD |
1150 | tx_ring->next_to_use, i, |
1151 | tx_ring->tx_buffer_info[i].time_stamp, jiffies); | |
c84d324c JF |
1152 | |
1153 | netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index); | |
1154 | ||
1155 | e_info(probe, | |
1156 | "tx hang %d detected on queue %d, resetting adapter\n", | |
1157 | adapter->tx_timeout_count + 1, tx_ring->queue_index); | |
1158 | ||
b953799e | 1159 | /* schedule immediate reset if we believe we hung */ |
c83c6cbd | 1160 | ixgbe_tx_timeout_reset(adapter); |
b953799e AD |
1161 | |
1162 | /* the adapter is about to reset, no point in enabling stuff */ | |
59224555 | 1163 | return true; |
b953799e | 1164 | } |
9a799d71 | 1165 | |
b2d96e0a AD |
1166 | netdev_tx_completed_queue(txring_txq(tx_ring), |
1167 | total_packets, total_bytes); | |
1168 | ||
e092be60 | 1169 | #define TX_WAKE_THRESHOLD (DESC_NEEDED * 2) |
30065e63 | 1170 | if (unlikely(total_packets && netif_carrier_ok(tx_ring->netdev) && |
7d4987de | 1171 | (ixgbe_desc_unused(tx_ring) >= TX_WAKE_THRESHOLD))) { |
e092be60 AV |
1172 | /* Make sure that anybody stopping the queue after this |
1173 | * sees the new next_to_clean. | |
1174 | */ | |
1175 | smp_mb(); | |
729739b7 AD |
1176 | if (__netif_subqueue_stopped(tx_ring->netdev, |
1177 | tx_ring->queue_index) | |
1178 | && !test_bit(__IXGBE_DOWN, &adapter->state)) { | |
1179 | netif_wake_subqueue(tx_ring->netdev, | |
1180 | tx_ring->queue_index); | |
5b7da515 | 1181 | ++tx_ring->tx_stats.restart_queue; |
30eba97a | 1182 | } |
e092be60 | 1183 | } |
9a799d71 | 1184 | |
59224555 | 1185 | return !!budget; |
9a799d71 AK |
1186 | } |
1187 | ||
5dd2d332 | 1188 | #ifdef CONFIG_IXGBE_DCA |
bdda1a61 AD |
1189 | static void ixgbe_update_tx_dca(struct ixgbe_adapter *adapter, |
1190 | struct ixgbe_ring *tx_ring, | |
33cf09c9 | 1191 | int cpu) |
bd0362dd | 1192 | { |
33cf09c9 | 1193 | struct ixgbe_hw *hw = &adapter->hw; |
bdda1a61 AD |
1194 | u32 txctrl = dca3_get_tag(tx_ring->dev, cpu); |
1195 | u16 reg_offset; | |
33cf09c9 | 1196 | |
33cf09c9 AD |
1197 | switch (hw->mac.type) { |
1198 | case ixgbe_mac_82598EB: | |
bdda1a61 | 1199 | reg_offset = IXGBE_DCA_TXCTRL(tx_ring->reg_idx); |
33cf09c9 AD |
1200 | break; |
1201 | case ixgbe_mac_82599EB: | |
b93a2226 | 1202 | case ixgbe_mac_X540: |
bdda1a61 AD |
1203 | reg_offset = IXGBE_DCA_TXCTRL_82599(tx_ring->reg_idx); |
1204 | txctrl <<= IXGBE_DCA_TXCTRL_CPUID_SHIFT_82599; | |
33cf09c9 AD |
1205 | break; |
1206 | default: | |
bdda1a61 AD |
1207 | /* for unknown hardware do not write register */ |
1208 | return; | |
bd0362dd | 1209 | } |
bdda1a61 AD |
1210 | |
1211 | /* | |
1212 | * We can enable relaxed ordering for reads, but not writes when | |
1213 | * DCA is enabled. This is due to a known issue in some chipsets | |
1214 | * which will cause the DCA tag to be cleared. | |
1215 | */ | |
1216 | txctrl |= IXGBE_DCA_TXCTRL_DESC_RRO_EN | | |
1217 | IXGBE_DCA_TXCTRL_DATA_RRO_EN | | |
1218 | IXGBE_DCA_TXCTRL_DESC_DCA_EN; | |
1219 | ||
1220 | IXGBE_WRITE_REG(hw, reg_offset, txctrl); | |
bd0362dd JC |
1221 | } |
1222 | ||
bdda1a61 AD |
1223 | static void ixgbe_update_rx_dca(struct ixgbe_adapter *adapter, |
1224 | struct ixgbe_ring *rx_ring, | |
33cf09c9 | 1225 | int cpu) |
bd0362dd | 1226 | { |
33cf09c9 | 1227 | struct ixgbe_hw *hw = &adapter->hw; |
bdda1a61 AD |
1228 | u32 rxctrl = dca3_get_tag(rx_ring->dev, cpu); |
1229 | u8 reg_idx = rx_ring->reg_idx; | |
1230 | ||
33cf09c9 AD |
1231 | |
1232 | switch (hw->mac.type) { | |
33cf09c9 | 1233 | case ixgbe_mac_82599EB: |
b93a2226 | 1234 | case ixgbe_mac_X540: |
bdda1a61 | 1235 | rxctrl <<= IXGBE_DCA_RXCTRL_CPUID_SHIFT_82599; |
33cf09c9 AD |
1236 | break; |
1237 | default: | |
1238 | break; | |
1239 | } | |
bdda1a61 AD |
1240 | |
1241 | /* | |
1242 | * We can enable relaxed ordering for reads, but not writes when | |
1243 | * DCA is enabled. This is due to a known issue in some chipsets | |
1244 | * which will cause the DCA tag to be cleared. | |
1245 | */ | |
1246 | rxctrl |= IXGBE_DCA_RXCTRL_DESC_RRO_EN | | |
bdda1a61 AD |
1247 | IXGBE_DCA_RXCTRL_DESC_DCA_EN; |
1248 | ||
1249 | IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(reg_idx), rxctrl); | |
33cf09c9 AD |
1250 | } |
1251 | ||
1252 | static void ixgbe_update_dca(struct ixgbe_q_vector *q_vector) | |
1253 | { | |
1254 | struct ixgbe_adapter *adapter = q_vector->adapter; | |
efe3d3c8 | 1255 | struct ixgbe_ring *ring; |
bd0362dd | 1256 | int cpu = get_cpu(); |
bd0362dd | 1257 | |
33cf09c9 AD |
1258 | if (q_vector->cpu == cpu) |
1259 | goto out_no_update; | |
1260 | ||
a557928e | 1261 | ixgbe_for_each_ring(ring, q_vector->tx) |
efe3d3c8 | 1262 | ixgbe_update_tx_dca(adapter, ring, cpu); |
33cf09c9 | 1263 | |
a557928e | 1264 | ixgbe_for_each_ring(ring, q_vector->rx) |
efe3d3c8 | 1265 | ixgbe_update_rx_dca(adapter, ring, cpu); |
33cf09c9 AD |
1266 | |
1267 | q_vector->cpu = cpu; | |
1268 | out_no_update: | |
bd0362dd JC |
1269 | put_cpu(); |
1270 | } | |
1271 | ||
1272 | static void ixgbe_setup_dca(struct ixgbe_adapter *adapter) | |
1273 | { | |
1274 | int i; | |
1275 | ||
1276 | if (!(adapter->flags & IXGBE_FLAG_DCA_ENABLED)) | |
1277 | return; | |
1278 | ||
e35ec126 AD |
1279 | /* always use CB2 mode, difference is masked in the CB driver */ |
1280 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, 2); | |
1281 | ||
49c7ffbe | 1282 | for (i = 0; i < adapter->num_q_vectors; i++) { |
33cf09c9 AD |
1283 | adapter->q_vector[i]->cpu = -1; |
1284 | ixgbe_update_dca(adapter->q_vector[i]); | |
bd0362dd JC |
1285 | } |
1286 | } | |
1287 | ||
1288 | static int __ixgbe_notify_dca(struct device *dev, void *data) | |
1289 | { | |
c60fbb00 | 1290 | struct ixgbe_adapter *adapter = dev_get_drvdata(dev); |
bd0362dd JC |
1291 | unsigned long event = *(unsigned long *)data; |
1292 | ||
2a72c31e | 1293 | if (!(adapter->flags & IXGBE_FLAG_DCA_CAPABLE)) |
33cf09c9 AD |
1294 | return 0; |
1295 | ||
bd0362dd JC |
1296 | switch (event) { |
1297 | case DCA_PROVIDER_ADD: | |
96b0e0f6 JB |
1298 | /* if we're already enabled, don't do it again */ |
1299 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) | |
1300 | break; | |
652f093f | 1301 | if (dca_add_requester(dev) == 0) { |
96b0e0f6 | 1302 | adapter->flags |= IXGBE_FLAG_DCA_ENABLED; |
bd0362dd JC |
1303 | ixgbe_setup_dca(adapter); |
1304 | break; | |
1305 | } | |
1306 | /* Fall Through since DCA is disabled. */ | |
1307 | case DCA_PROVIDER_REMOVE: | |
1308 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) { | |
1309 | dca_remove_requester(dev); | |
1310 | adapter->flags &= ~IXGBE_FLAG_DCA_ENABLED; | |
1311 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, 1); | |
1312 | } | |
1313 | break; | |
1314 | } | |
1315 | ||
652f093f | 1316 | return 0; |
bd0362dd | 1317 | } |
67a74ee2 | 1318 | |
bdda1a61 | 1319 | #endif /* CONFIG_IXGBE_DCA */ |
8a0da21b AD |
1320 | static inline void ixgbe_rx_hash(struct ixgbe_ring *ring, |
1321 | union ixgbe_adv_rx_desc *rx_desc, | |
67a74ee2 ET |
1322 | struct sk_buff *skb) |
1323 | { | |
8a0da21b | 1324 | if (ring->netdev->features & NETIF_F_RXHASH) |
38da9853 TH |
1325 | skb_set_hash(skb, |
1326 | le32_to_cpu(rx_desc->wb.lower.hi_dword.rss), | |
1327 | PKT_HASH_TYPE_L3); | |
67a74ee2 ET |
1328 | } |
1329 | ||
f800326d | 1330 | #ifdef IXGBE_FCOE |
ff886dfc AD |
1331 | /** |
1332 | * ixgbe_rx_is_fcoe - check the rx desc for incoming pkt type | |
57efd44c | 1333 | * @ring: structure containing ring specific data |
ff886dfc AD |
1334 | * @rx_desc: advanced rx descriptor |
1335 | * | |
1336 | * Returns : true if it is FCoE pkt | |
1337 | */ | |
57efd44c | 1338 | static inline bool ixgbe_rx_is_fcoe(struct ixgbe_ring *ring, |
ff886dfc AD |
1339 | union ixgbe_adv_rx_desc *rx_desc) |
1340 | { | |
1341 | __le16 pkt_info = rx_desc->wb.lower.lo_dword.hs_rss.pkt_info; | |
1342 | ||
57efd44c | 1343 | return test_bit(__IXGBE_RX_FCOE, &ring->state) && |
ff886dfc AD |
1344 | ((pkt_info & cpu_to_le16(IXGBE_RXDADV_PKTTYPE_ETQF_MASK)) == |
1345 | (cpu_to_le16(IXGBE_ETQF_FILTER_FCOE << | |
1346 | IXGBE_RXDADV_PKTTYPE_ETQF_SHIFT))); | |
1347 | } | |
1348 | ||
f800326d | 1349 | #endif /* IXGBE_FCOE */ |
e59bd25d AV |
1350 | /** |
1351 | * ixgbe_rx_checksum - indicate in skb if hw indicated a good cksum | |
8a0da21b AD |
1352 | * @ring: structure containing ring specific data |
1353 | * @rx_desc: current Rx descriptor being processed | |
e59bd25d AV |
1354 | * @skb: skb currently being received and modified |
1355 | **/ | |
8a0da21b | 1356 | static inline void ixgbe_rx_checksum(struct ixgbe_ring *ring, |
8bae1b2b | 1357 | union ixgbe_adv_rx_desc *rx_desc, |
f56e0cb1 | 1358 | struct sk_buff *skb) |
9a799d71 | 1359 | { |
8a0da21b | 1360 | skb_checksum_none_assert(skb); |
9a799d71 | 1361 | |
712744be | 1362 | /* Rx csum disabled */ |
8a0da21b | 1363 | if (!(ring->netdev->features & NETIF_F_RXCSUM)) |
9a799d71 | 1364 | return; |
e59bd25d AV |
1365 | |
1366 | /* if IP and error */ | |
f56e0cb1 AD |
1367 | if (ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_IPCS) && |
1368 | ixgbe_test_staterr(rx_desc, IXGBE_RXDADV_ERR_IPE)) { | |
8a0da21b | 1369 | ring->rx_stats.csum_err++; |
9a799d71 AK |
1370 | return; |
1371 | } | |
e59bd25d | 1372 | |
f56e0cb1 | 1373 | if (!ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_L4CS)) |
e59bd25d AV |
1374 | return; |
1375 | ||
f56e0cb1 | 1376 | if (ixgbe_test_staterr(rx_desc, IXGBE_RXDADV_ERR_TCPE)) { |
f800326d | 1377 | __le16 pkt_info = rx_desc->wb.lower.lo_dword.hs_rss.pkt_info; |
8bae1b2b DS |
1378 | |
1379 | /* | |
1380 | * 82599 errata, UDP frames with a 0 checksum can be marked as | |
1381 | * checksum errors. | |
1382 | */ | |
8a0da21b AD |
1383 | if ((pkt_info & cpu_to_le16(IXGBE_RXDADV_PKTTYPE_UDP)) && |
1384 | test_bit(__IXGBE_RX_CSUM_UDP_ZERO_ERR, &ring->state)) | |
8bae1b2b DS |
1385 | return; |
1386 | ||
8a0da21b | 1387 | ring->rx_stats.csum_err++; |
e59bd25d AV |
1388 | return; |
1389 | } | |
1390 | ||
9a799d71 | 1391 | /* It must be a TCP or UDP packet with a valid checksum */ |
e59bd25d | 1392 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
9a799d71 AK |
1393 | } |
1394 | ||
84ea2591 | 1395 | static inline void ixgbe_release_rx_desc(struct ixgbe_ring *rx_ring, u32 val) |
e8e26350 | 1396 | { |
f56e0cb1 | 1397 | rx_ring->next_to_use = val; |
f800326d AD |
1398 | |
1399 | /* update next to alloc since we have filled the ring */ | |
1400 | rx_ring->next_to_alloc = val; | |
e8e26350 PW |
1401 | /* |
1402 | * Force memory writes to complete before letting h/w | |
1403 | * know there are new descriptors to fetch. (Only | |
1404 | * applicable for weak-ordered memory model archs, | |
1405 | * such as IA-64). | |
1406 | */ | |
1407 | wmb(); | |
84227bcd | 1408 | ixgbe_write_tail(rx_ring, val); |
e8e26350 PW |
1409 | } |
1410 | ||
f990b79b AD |
1411 | static bool ixgbe_alloc_mapped_page(struct ixgbe_ring *rx_ring, |
1412 | struct ixgbe_rx_buffer *bi) | |
1413 | { | |
1414 | struct page *page = bi->page; | |
f800326d | 1415 | dma_addr_t dma = bi->dma; |
f990b79b | 1416 | |
f800326d AD |
1417 | /* since we are recycling buffers we should seldom need to alloc */ |
1418 | if (likely(dma)) | |
f990b79b AD |
1419 | return true; |
1420 | ||
f800326d AD |
1421 | /* alloc new page for storage */ |
1422 | if (likely(!page)) { | |
0614002b MG |
1423 | page = __skb_alloc_pages(GFP_ATOMIC | __GFP_COLD | __GFP_COMP, |
1424 | bi->skb, ixgbe_rx_pg_order(rx_ring)); | |
f990b79b AD |
1425 | if (unlikely(!page)) { |
1426 | rx_ring->rx_stats.alloc_rx_page_failed++; | |
1427 | return false; | |
1428 | } | |
f800326d | 1429 | bi->page = page; |
f990b79b AD |
1430 | } |
1431 | ||
f800326d AD |
1432 | /* map page for use */ |
1433 | dma = dma_map_page(rx_ring->dev, page, 0, | |
1434 | ixgbe_rx_pg_size(rx_ring), DMA_FROM_DEVICE); | |
1435 | ||
1436 | /* | |
1437 | * if mapping failed free memory back to system since | |
1438 | * there isn't much point in holding memory we can't use | |
1439 | */ | |
1440 | if (dma_mapping_error(rx_ring->dev, dma)) { | |
dd411ec4 | 1441 | __free_pages(page, ixgbe_rx_pg_order(rx_ring)); |
f800326d | 1442 | bi->page = NULL; |
f990b79b | 1443 | |
f990b79b AD |
1444 | rx_ring->rx_stats.alloc_rx_page_failed++; |
1445 | return false; | |
1446 | } | |
1447 | ||
f800326d | 1448 | bi->dma = dma; |
afaa9459 | 1449 | bi->page_offset = 0; |
f800326d | 1450 | |
f990b79b AD |
1451 | return true; |
1452 | } | |
1453 | ||
9a799d71 | 1454 | /** |
f990b79b | 1455 | * ixgbe_alloc_rx_buffers - Replace used receive buffers |
fc77dc3c AD |
1456 | * @rx_ring: ring to place buffers on |
1457 | * @cleaned_count: number of buffers to replace | |
9a799d71 | 1458 | **/ |
fc77dc3c | 1459 | void ixgbe_alloc_rx_buffers(struct ixgbe_ring *rx_ring, u16 cleaned_count) |
9a799d71 | 1460 | { |
9a799d71 | 1461 | union ixgbe_adv_rx_desc *rx_desc; |
3a581073 | 1462 | struct ixgbe_rx_buffer *bi; |
d5f398ed | 1463 | u16 i = rx_ring->next_to_use; |
9a799d71 | 1464 | |
f800326d AD |
1465 | /* nothing to do */ |
1466 | if (!cleaned_count) | |
fc77dc3c AD |
1467 | return; |
1468 | ||
e4f74028 | 1469 | rx_desc = IXGBE_RX_DESC(rx_ring, i); |
f990b79b AD |
1470 | bi = &rx_ring->rx_buffer_info[i]; |
1471 | i -= rx_ring->count; | |
9a799d71 | 1472 | |
f800326d AD |
1473 | do { |
1474 | if (!ixgbe_alloc_mapped_page(rx_ring, bi)) | |
f990b79b | 1475 | break; |
d5f398ed | 1476 | |
f800326d AD |
1477 | /* |
1478 | * Refresh the desc even if buffer_addrs didn't change | |
1479 | * because each write-back erases this info. | |
1480 | */ | |
1481 | rx_desc->read.pkt_addr = cpu_to_le64(bi->dma + bi->page_offset); | |
9a799d71 | 1482 | |
f990b79b AD |
1483 | rx_desc++; |
1484 | bi++; | |
9a799d71 | 1485 | i++; |
f990b79b | 1486 | if (unlikely(!i)) { |
e4f74028 | 1487 | rx_desc = IXGBE_RX_DESC(rx_ring, 0); |
f990b79b AD |
1488 | bi = rx_ring->rx_buffer_info; |
1489 | i -= rx_ring->count; | |
1490 | } | |
1491 | ||
1492 | /* clear the hdr_addr for the next_to_use descriptor */ | |
1493 | rx_desc->read.hdr_addr = 0; | |
f800326d AD |
1494 | |
1495 | cleaned_count--; | |
1496 | } while (cleaned_count); | |
7c6e0a43 | 1497 | |
f990b79b AD |
1498 | i += rx_ring->count; |
1499 | ||
f56e0cb1 | 1500 | if (rx_ring->next_to_use != i) |
84ea2591 | 1501 | ixgbe_release_rx_desc(rx_ring, i); |
9a799d71 AK |
1502 | } |
1503 | ||
1d2024f6 AD |
1504 | /** |
1505 | * ixgbe_get_headlen - determine size of header for RSC/LRO/GRO/FCOE | |
1506 | * @data: pointer to the start of the headers | |
1507 | * @max_len: total length of section to find headers in | |
1508 | * | |
1509 | * This function is meant to determine the length of headers that will | |
1510 | * be recognized by hardware for LRO, GRO, and RSC offloads. The main | |
1511 | * motivation of doing this is to only perform one pull for IPv4 TCP | |
1512 | * packets so that we can do basic things like calculating the gso_size | |
1513 | * based on the average data per packet. | |
1514 | **/ | |
1515 | static unsigned int ixgbe_get_headlen(unsigned char *data, | |
1516 | unsigned int max_len) | |
1517 | { | |
1518 | union { | |
1519 | unsigned char *network; | |
1520 | /* l2 headers */ | |
1521 | struct ethhdr *eth; | |
1522 | struct vlan_hdr *vlan; | |
1523 | /* l3 headers */ | |
1524 | struct iphdr *ipv4; | |
a048b40e | 1525 | struct ipv6hdr *ipv6; |
1d2024f6 AD |
1526 | } hdr; |
1527 | __be16 protocol; | |
1528 | u8 nexthdr = 0; /* default to not TCP */ | |
1529 | u8 hlen; | |
1530 | ||
1531 | /* this should never happen, but better safe than sorry */ | |
1532 | if (max_len < ETH_HLEN) | |
1533 | return max_len; | |
1534 | ||
1535 | /* initialize network frame pointer */ | |
1536 | hdr.network = data; | |
1537 | ||
1538 | /* set first protocol and move network header forward */ | |
1539 | protocol = hdr.eth->h_proto; | |
1540 | hdr.network += ETH_HLEN; | |
1541 | ||
1542 | /* handle any vlan tag if present */ | |
a1108ffd | 1543 | if (protocol == htons(ETH_P_8021Q)) { |
1d2024f6 AD |
1544 | if ((hdr.network - data) > (max_len - VLAN_HLEN)) |
1545 | return max_len; | |
1546 | ||
1547 | protocol = hdr.vlan->h_vlan_encapsulated_proto; | |
1548 | hdr.network += VLAN_HLEN; | |
1549 | } | |
1550 | ||
1551 | /* handle L3 protocols */ | |
a1108ffd | 1552 | if (protocol == htons(ETH_P_IP)) { |
1d2024f6 AD |
1553 | if ((hdr.network - data) > (max_len - sizeof(struct iphdr))) |
1554 | return max_len; | |
1555 | ||
1556 | /* access ihl as a u8 to avoid unaligned access on ia64 */ | |
1557 | hlen = (hdr.network[0] & 0x0F) << 2; | |
1558 | ||
1559 | /* verify hlen meets minimum size requirements */ | |
1560 | if (hlen < sizeof(struct iphdr)) | |
1561 | return hdr.network - data; | |
1562 | ||
ed83da12 | 1563 | /* record next protocol if header is present */ |
20967f42 | 1564 | if (!(hdr.ipv4->frag_off & htons(IP_OFFSET))) |
ed83da12 | 1565 | nexthdr = hdr.ipv4->protocol; |
a1108ffd | 1566 | } else if (protocol == htons(ETH_P_IPV6)) { |
a048b40e AD |
1567 | if ((hdr.network - data) > (max_len - sizeof(struct ipv6hdr))) |
1568 | return max_len; | |
1569 | ||
1570 | /* record next protocol */ | |
1571 | nexthdr = hdr.ipv6->nexthdr; | |
ed83da12 | 1572 | hlen = sizeof(struct ipv6hdr); |
f800326d | 1573 | #ifdef IXGBE_FCOE |
a1108ffd | 1574 | } else if (protocol == htons(ETH_P_FCOE)) { |
1d2024f6 AD |
1575 | if ((hdr.network - data) > (max_len - FCOE_HEADER_LEN)) |
1576 | return max_len; | |
ed83da12 | 1577 | hlen = FCOE_HEADER_LEN; |
1d2024f6 AD |
1578 | #endif |
1579 | } else { | |
1580 | return hdr.network - data; | |
1581 | } | |
1582 | ||
ed83da12 AD |
1583 | /* relocate pointer to start of L4 header */ |
1584 | hdr.network += hlen; | |
1585 | ||
a048b40e | 1586 | /* finally sort out TCP/UDP */ |
1d2024f6 AD |
1587 | if (nexthdr == IPPROTO_TCP) { |
1588 | if ((hdr.network - data) > (max_len - sizeof(struct tcphdr))) | |
1589 | return max_len; | |
1590 | ||
1591 | /* access doff as a u8 to avoid unaligned access on ia64 */ | |
1592 | hlen = (hdr.network[12] & 0xF0) >> 2; | |
1593 | ||
1594 | /* verify hlen meets minimum size requirements */ | |
1595 | if (hlen < sizeof(struct tcphdr)) | |
1596 | return hdr.network - data; | |
1597 | ||
1598 | hdr.network += hlen; | |
a048b40e AD |
1599 | } else if (nexthdr == IPPROTO_UDP) { |
1600 | if ((hdr.network - data) > (max_len - sizeof(struct udphdr))) | |
1601 | return max_len; | |
1602 | ||
1603 | hdr.network += sizeof(struct udphdr); | |
1d2024f6 AD |
1604 | } |
1605 | ||
1606 | /* | |
1607 | * If everything has gone correctly hdr.network should be the | |
1608 | * data section of the packet and will be the end of the header. | |
1609 | * If not then it probably represents the end of the last recognized | |
1610 | * header. | |
1611 | */ | |
1612 | if ((hdr.network - data) < max_len) | |
1613 | return hdr.network - data; | |
1614 | else | |
1615 | return max_len; | |
1616 | } | |
1617 | ||
1d2024f6 AD |
1618 | static void ixgbe_set_rsc_gso_size(struct ixgbe_ring *ring, |
1619 | struct sk_buff *skb) | |
1620 | { | |
f800326d | 1621 | u16 hdr_len = skb_headlen(skb); |
1d2024f6 AD |
1622 | |
1623 | /* set gso_size to avoid messing up TCP MSS */ | |
1624 | skb_shinfo(skb)->gso_size = DIV_ROUND_UP((skb->len - hdr_len), | |
1625 | IXGBE_CB(skb)->append_cnt); | |
96be80ab | 1626 | skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4; |
1d2024f6 AD |
1627 | } |
1628 | ||
1629 | static void ixgbe_update_rsc_stats(struct ixgbe_ring *rx_ring, | |
1630 | struct sk_buff *skb) | |
1631 | { | |
1632 | /* if append_cnt is 0 then frame is not RSC */ | |
1633 | if (!IXGBE_CB(skb)->append_cnt) | |
1634 | return; | |
1635 | ||
1636 | rx_ring->rx_stats.rsc_count += IXGBE_CB(skb)->append_cnt; | |
1637 | rx_ring->rx_stats.rsc_flush++; | |
1638 | ||
1639 | ixgbe_set_rsc_gso_size(rx_ring, skb); | |
1640 | ||
1641 | /* gso_size is computed using append_cnt so always clear it last */ | |
1642 | IXGBE_CB(skb)->append_cnt = 0; | |
1643 | } | |
1644 | ||
8a0da21b AD |
1645 | /** |
1646 | * ixgbe_process_skb_fields - Populate skb header fields from Rx descriptor | |
1647 | * @rx_ring: rx descriptor ring packet is being transacted on | |
1648 | * @rx_desc: pointer to the EOP Rx descriptor | |
1649 | * @skb: pointer to current skb being populated | |
f8212f97 | 1650 | * |
8a0da21b AD |
1651 | * This function checks the ring, descriptor, and packet information in |
1652 | * order to populate the hash, checksum, VLAN, timestamp, protocol, and | |
1653 | * other fields within the skb. | |
f8212f97 | 1654 | **/ |
8a0da21b AD |
1655 | static void ixgbe_process_skb_fields(struct ixgbe_ring *rx_ring, |
1656 | union ixgbe_adv_rx_desc *rx_desc, | |
1657 | struct sk_buff *skb) | |
f8212f97 | 1658 | { |
43e95f11 JF |
1659 | struct net_device *dev = rx_ring->netdev; |
1660 | ||
8a0da21b AD |
1661 | ixgbe_update_rsc_stats(rx_ring, skb); |
1662 | ||
1663 | ixgbe_rx_hash(rx_ring, rx_desc, skb); | |
f8212f97 | 1664 | |
8a0da21b AD |
1665 | ixgbe_rx_checksum(rx_ring, rx_desc, skb); |
1666 | ||
6cb562d6 | 1667 | ixgbe_ptp_rx_hwtstamp(rx_ring, rx_desc, skb); |
3a6a4eda | 1668 | |
f646968f | 1669 | if ((dev->features & NETIF_F_HW_VLAN_CTAG_RX) && |
43e95f11 | 1670 | ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_VP)) { |
8a0da21b | 1671 | u16 vid = le16_to_cpu(rx_desc->wb.upper.vlan); |
86a9bad3 | 1672 | __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vid); |
f8212f97 AD |
1673 | } |
1674 | ||
8a0da21b | 1675 | skb_record_rx_queue(skb, rx_ring->queue_index); |
aa80175a | 1676 | |
43e95f11 | 1677 | skb->protocol = eth_type_trans(skb, dev); |
f8212f97 AD |
1678 | } |
1679 | ||
8a0da21b AD |
1680 | static void ixgbe_rx_skb(struct ixgbe_q_vector *q_vector, |
1681 | struct sk_buff *skb) | |
aa80175a | 1682 | { |
8a0da21b AD |
1683 | struct ixgbe_adapter *adapter = q_vector->adapter; |
1684 | ||
b4640030 | 1685 | if (ixgbe_qv_busy_polling(q_vector)) |
5a85e737 ET |
1686 | netif_receive_skb(skb); |
1687 | else if (!(adapter->flags & IXGBE_FLAG_IN_NETPOLL)) | |
8a0da21b AD |
1688 | napi_gro_receive(&q_vector->napi, skb); |
1689 | else | |
1690 | netif_rx(skb); | |
aa80175a | 1691 | } |
43634e82 | 1692 | |
f800326d AD |
1693 | /** |
1694 | * ixgbe_is_non_eop - process handling of non-EOP buffers | |
1695 | * @rx_ring: Rx ring being processed | |
1696 | * @rx_desc: Rx descriptor for current buffer | |
1697 | * @skb: Current socket buffer containing buffer in progress | |
1698 | * | |
1699 | * This function updates next to clean. If the buffer is an EOP buffer | |
1700 | * this function exits returning false, otherwise it will place the | |
1701 | * sk_buff in the next buffer to be chained and return true indicating | |
1702 | * that this is in fact a non-EOP buffer. | |
1703 | **/ | |
1704 | static bool ixgbe_is_non_eop(struct ixgbe_ring *rx_ring, | |
1705 | union ixgbe_adv_rx_desc *rx_desc, | |
1706 | struct sk_buff *skb) | |
1707 | { | |
1708 | u32 ntc = rx_ring->next_to_clean + 1; | |
1709 | ||
1710 | /* fetch, update, and store next to clean */ | |
1711 | ntc = (ntc < rx_ring->count) ? ntc : 0; | |
1712 | rx_ring->next_to_clean = ntc; | |
1713 | ||
1714 | prefetch(IXGBE_RX_DESC(rx_ring, ntc)); | |
1715 | ||
5a02cbd1 AD |
1716 | /* update RSC append count if present */ |
1717 | if (ring_is_rsc_enabled(rx_ring)) { | |
1718 | __le32 rsc_enabled = rx_desc->wb.lower.lo_dword.data & | |
1719 | cpu_to_le32(IXGBE_RXDADV_RSCCNT_MASK); | |
1720 | ||
1721 | if (unlikely(rsc_enabled)) { | |
1722 | u32 rsc_cnt = le32_to_cpu(rsc_enabled); | |
1723 | ||
1724 | rsc_cnt >>= IXGBE_RXDADV_RSCCNT_SHIFT; | |
1725 | IXGBE_CB(skb)->append_cnt += rsc_cnt - 1; | |
f800326d | 1726 | |
5a02cbd1 AD |
1727 | /* update ntc based on RSC value */ |
1728 | ntc = le32_to_cpu(rx_desc->wb.upper.status_error); | |
1729 | ntc &= IXGBE_RXDADV_NEXTP_MASK; | |
1730 | ntc >>= IXGBE_RXDADV_NEXTP_SHIFT; | |
1731 | } | |
f800326d AD |
1732 | } |
1733 | ||
5a02cbd1 AD |
1734 | /* if we are the last buffer then there is nothing else to do */ |
1735 | if (likely(ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_EOP))) | |
1736 | return false; | |
1737 | ||
f800326d AD |
1738 | /* place skb in next buffer to be received */ |
1739 | rx_ring->rx_buffer_info[ntc].skb = skb; | |
1740 | rx_ring->rx_stats.non_eop_descs++; | |
1741 | ||
1742 | return true; | |
1743 | } | |
1744 | ||
19861ce2 AD |
1745 | /** |
1746 | * ixgbe_pull_tail - ixgbe specific version of skb_pull_tail | |
1747 | * @rx_ring: rx descriptor ring packet is being transacted on | |
1748 | * @skb: pointer to current skb being adjusted | |
1749 | * | |
1750 | * This function is an ixgbe specific version of __pskb_pull_tail. The | |
1751 | * main difference between this version and the original function is that | |
1752 | * this function can make several assumptions about the state of things | |
1753 | * that allow for significant optimizations versus the standard function. | |
1754 | * As a result we can do things like drop a frag and maintain an accurate | |
1755 | * truesize for the skb. | |
1756 | */ | |
1757 | static void ixgbe_pull_tail(struct ixgbe_ring *rx_ring, | |
1758 | struct sk_buff *skb) | |
1759 | { | |
1760 | struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[0]; | |
1761 | unsigned char *va; | |
1762 | unsigned int pull_len; | |
1763 | ||
1764 | /* | |
1765 | * it is valid to use page_address instead of kmap since we are | |
1766 | * working with pages allocated out of the lomem pool per | |
1767 | * alloc_page(GFP_ATOMIC) | |
1768 | */ | |
1769 | va = skb_frag_address(frag); | |
1770 | ||
1771 | /* | |
1772 | * we need the header to contain the greater of either ETH_HLEN or | |
1773 | * 60 bytes if the skb->len is less than 60 for skb_pad. | |
1774 | */ | |
cf3fe7ac | 1775 | pull_len = ixgbe_get_headlen(va, IXGBE_RX_HDR_SIZE); |
19861ce2 AD |
1776 | |
1777 | /* align pull length to size of long to optimize memcpy performance */ | |
1778 | skb_copy_to_linear_data(skb, va, ALIGN(pull_len, sizeof(long))); | |
1779 | ||
1780 | /* update all of the pointers */ | |
1781 | skb_frag_size_sub(frag, pull_len); | |
1782 | frag->page_offset += pull_len; | |
1783 | skb->data_len -= pull_len; | |
1784 | skb->tail += pull_len; | |
19861ce2 AD |
1785 | } |
1786 | ||
42073d91 AD |
1787 | /** |
1788 | * ixgbe_dma_sync_frag - perform DMA sync for first frag of SKB | |
1789 | * @rx_ring: rx descriptor ring packet is being transacted on | |
1790 | * @skb: pointer to current skb being updated | |
1791 | * | |
1792 | * This function provides a basic DMA sync up for the first fragment of an | |
1793 | * skb. The reason for doing this is that the first fragment cannot be | |
1794 | * unmapped until we have reached the end of packet descriptor for a buffer | |
1795 | * chain. | |
1796 | */ | |
1797 | static void ixgbe_dma_sync_frag(struct ixgbe_ring *rx_ring, | |
1798 | struct sk_buff *skb) | |
1799 | { | |
1800 | /* if the page was released unmap it, else just sync our portion */ | |
1801 | if (unlikely(IXGBE_CB(skb)->page_released)) { | |
1802 | dma_unmap_page(rx_ring->dev, IXGBE_CB(skb)->dma, | |
1803 | ixgbe_rx_pg_size(rx_ring), DMA_FROM_DEVICE); | |
1804 | IXGBE_CB(skb)->page_released = false; | |
1805 | } else { | |
1806 | struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[0]; | |
1807 | ||
1808 | dma_sync_single_range_for_cpu(rx_ring->dev, | |
1809 | IXGBE_CB(skb)->dma, | |
1810 | frag->page_offset, | |
1811 | ixgbe_rx_bufsz(rx_ring), | |
1812 | DMA_FROM_DEVICE); | |
1813 | } | |
1814 | IXGBE_CB(skb)->dma = 0; | |
1815 | } | |
1816 | ||
f800326d AD |
1817 | /** |
1818 | * ixgbe_cleanup_headers - Correct corrupted or empty headers | |
1819 | * @rx_ring: rx descriptor ring packet is being transacted on | |
1820 | * @rx_desc: pointer to the EOP Rx descriptor | |
1821 | * @skb: pointer to current skb being fixed | |
1822 | * | |
1823 | * Check for corrupted packet headers caused by senders on the local L2 | |
1824 | * embedded NIC switch not setting up their Tx Descriptors right. These | |
1825 | * should be very rare. | |
1826 | * | |
1827 | * Also address the case where we are pulling data in on pages only | |
1828 | * and as such no data is present in the skb header. | |
1829 | * | |
1830 | * In addition if skb is not at least 60 bytes we need to pad it so that | |
1831 | * it is large enough to qualify as a valid Ethernet frame. | |
1832 | * | |
1833 | * Returns true if an error was encountered and skb was freed. | |
1834 | **/ | |
1835 | static bool ixgbe_cleanup_headers(struct ixgbe_ring *rx_ring, | |
1836 | union ixgbe_adv_rx_desc *rx_desc, | |
1837 | struct sk_buff *skb) | |
1838 | { | |
f800326d | 1839 | struct net_device *netdev = rx_ring->netdev; |
f800326d AD |
1840 | |
1841 | /* verify that the packet does not have any known errors */ | |
1842 | if (unlikely(ixgbe_test_staterr(rx_desc, | |
1843 | IXGBE_RXDADV_ERR_FRAME_ERR_MASK) && | |
1844 | !(netdev->features & NETIF_F_RXALL))) { | |
1845 | dev_kfree_skb_any(skb); | |
1846 | return true; | |
1847 | } | |
1848 | ||
19861ce2 | 1849 | /* place header in linear portion of buffer */ |
cf3fe7ac AD |
1850 | if (skb_is_nonlinear(skb)) |
1851 | ixgbe_pull_tail(rx_ring, skb); | |
f800326d | 1852 | |
57efd44c AD |
1853 | #ifdef IXGBE_FCOE |
1854 | /* do not attempt to pad FCoE Frames as this will disrupt DDP */ | |
1855 | if (ixgbe_rx_is_fcoe(rx_ring, rx_desc)) | |
1856 | return false; | |
1857 | ||
1858 | #endif | |
f800326d AD |
1859 | /* if skb_pad returns an error the skb was freed */ |
1860 | if (unlikely(skb->len < 60)) { | |
1861 | int pad_len = 60 - skb->len; | |
1862 | ||
1863 | if (skb_pad(skb, pad_len)) | |
1864 | return true; | |
1865 | __skb_put(skb, pad_len); | |
1866 | } | |
1867 | ||
1868 | return false; | |
1869 | } | |
1870 | ||
f800326d AD |
1871 | /** |
1872 | * ixgbe_reuse_rx_page - page flip buffer and store it back on the ring | |
1873 | * @rx_ring: rx descriptor ring to store buffers on | |
1874 | * @old_buff: donor buffer to have page reused | |
1875 | * | |
0549ae20 | 1876 | * Synchronizes page for reuse by the adapter |
f800326d AD |
1877 | **/ |
1878 | static void ixgbe_reuse_rx_page(struct ixgbe_ring *rx_ring, | |
1879 | struct ixgbe_rx_buffer *old_buff) | |
1880 | { | |
1881 | struct ixgbe_rx_buffer *new_buff; | |
1882 | u16 nta = rx_ring->next_to_alloc; | |
f800326d AD |
1883 | |
1884 | new_buff = &rx_ring->rx_buffer_info[nta]; | |
1885 | ||
1886 | /* update, and store next to alloc */ | |
1887 | nta++; | |
1888 | rx_ring->next_to_alloc = (nta < rx_ring->count) ? nta : 0; | |
1889 | ||
1890 | /* transfer page from old buffer to new buffer */ | |
1891 | new_buff->page = old_buff->page; | |
1892 | new_buff->dma = old_buff->dma; | |
0549ae20 | 1893 | new_buff->page_offset = old_buff->page_offset; |
f800326d AD |
1894 | |
1895 | /* sync the buffer for use by the device */ | |
1896 | dma_sync_single_range_for_device(rx_ring->dev, new_buff->dma, | |
0549ae20 AD |
1897 | new_buff->page_offset, |
1898 | ixgbe_rx_bufsz(rx_ring), | |
f800326d | 1899 | DMA_FROM_DEVICE); |
f800326d AD |
1900 | } |
1901 | ||
1902 | /** | |
1903 | * ixgbe_add_rx_frag - Add contents of Rx buffer to sk_buff | |
1904 | * @rx_ring: rx descriptor ring to transact packets on | |
1905 | * @rx_buffer: buffer containing page to add | |
1906 | * @rx_desc: descriptor containing length of buffer written by hardware | |
1907 | * @skb: sk_buff to place the data into | |
1908 | * | |
0549ae20 AD |
1909 | * This function will add the data contained in rx_buffer->page to the skb. |
1910 | * This is done either through a direct copy if the data in the buffer is | |
1911 | * less than the skb header size, otherwise it will just attach the page as | |
1912 | * a frag to the skb. | |
1913 | * | |
1914 | * The function will then update the page offset if necessary and return | |
1915 | * true if the buffer can be reused by the adapter. | |
f800326d | 1916 | **/ |
0549ae20 | 1917 | static bool ixgbe_add_rx_frag(struct ixgbe_ring *rx_ring, |
f800326d | 1918 | struct ixgbe_rx_buffer *rx_buffer, |
0549ae20 AD |
1919 | union ixgbe_adv_rx_desc *rx_desc, |
1920 | struct sk_buff *skb) | |
f800326d | 1921 | { |
0549ae20 AD |
1922 | struct page *page = rx_buffer->page; |
1923 | unsigned int size = le16_to_cpu(rx_desc->wb.upper.length); | |
09816fbe | 1924 | #if (PAGE_SIZE < 8192) |
0549ae20 | 1925 | unsigned int truesize = ixgbe_rx_bufsz(rx_ring); |
09816fbe AD |
1926 | #else |
1927 | unsigned int truesize = ALIGN(size, L1_CACHE_BYTES); | |
1928 | unsigned int last_offset = ixgbe_rx_pg_size(rx_ring) - | |
1929 | ixgbe_rx_bufsz(rx_ring); | |
1930 | #endif | |
0549ae20 | 1931 | |
cf3fe7ac AD |
1932 | if ((size <= IXGBE_RX_HDR_SIZE) && !skb_is_nonlinear(skb)) { |
1933 | unsigned char *va = page_address(page) + rx_buffer->page_offset; | |
1934 | ||
1935 | memcpy(__skb_put(skb, size), va, ALIGN(size, sizeof(long))); | |
1936 | ||
1937 | /* we can reuse buffer as-is, just make sure it is local */ | |
1938 | if (likely(page_to_nid(page) == numa_node_id())) | |
1939 | return true; | |
1940 | ||
1941 | /* this page cannot be reused so discard it */ | |
1942 | put_page(page); | |
1943 | return false; | |
1944 | } | |
1945 | ||
0549ae20 AD |
1946 | skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page, |
1947 | rx_buffer->page_offset, size, truesize); | |
1948 | ||
09816fbe AD |
1949 | /* avoid re-using remote pages */ |
1950 | if (unlikely(page_to_nid(page) != numa_node_id())) | |
1951 | return false; | |
1952 | ||
1953 | #if (PAGE_SIZE < 8192) | |
1954 | /* if we are only owner of page we can reuse it */ | |
1955 | if (unlikely(page_count(page) != 1)) | |
0549ae20 AD |
1956 | return false; |
1957 | ||
1958 | /* flip page offset to other buffer */ | |
1959 | rx_buffer->page_offset ^= truesize; | |
1960 | ||
09816fbe AD |
1961 | /* |
1962 | * since we are the only owner of the page and we need to | |
1963 | * increment it, just set the value to 2 in order to avoid | |
1964 | * an unecessary locked operation | |
1965 | */ | |
1966 | atomic_set(&page->_count, 2); | |
1967 | #else | |
1968 | /* move offset up to the next cache line */ | |
1969 | rx_buffer->page_offset += truesize; | |
1970 | ||
1971 | if (rx_buffer->page_offset > last_offset) | |
1972 | return false; | |
1973 | ||
0549ae20 AD |
1974 | /* bump ref count on page before it is given to the stack */ |
1975 | get_page(page); | |
09816fbe | 1976 | #endif |
0549ae20 AD |
1977 | |
1978 | return true; | |
f800326d AD |
1979 | } |
1980 | ||
18806c9e AD |
1981 | static struct sk_buff *ixgbe_fetch_rx_buffer(struct ixgbe_ring *rx_ring, |
1982 | union ixgbe_adv_rx_desc *rx_desc) | |
1983 | { | |
1984 | struct ixgbe_rx_buffer *rx_buffer; | |
1985 | struct sk_buff *skb; | |
1986 | struct page *page; | |
1987 | ||
1988 | rx_buffer = &rx_ring->rx_buffer_info[rx_ring->next_to_clean]; | |
1989 | page = rx_buffer->page; | |
1990 | prefetchw(page); | |
1991 | ||
1992 | skb = rx_buffer->skb; | |
1993 | ||
1994 | if (likely(!skb)) { | |
1995 | void *page_addr = page_address(page) + | |
1996 | rx_buffer->page_offset; | |
1997 | ||
1998 | /* prefetch first cache line of first page */ | |
1999 | prefetch(page_addr); | |
2000 | #if L1_CACHE_BYTES < 128 | |
2001 | prefetch(page_addr + L1_CACHE_BYTES); | |
2002 | #endif | |
2003 | ||
2004 | /* allocate a skb to store the frags */ | |
2005 | skb = netdev_alloc_skb_ip_align(rx_ring->netdev, | |
2006 | IXGBE_RX_HDR_SIZE); | |
2007 | if (unlikely(!skb)) { | |
2008 | rx_ring->rx_stats.alloc_rx_buff_failed++; | |
2009 | return NULL; | |
2010 | } | |
2011 | ||
2012 | /* | |
2013 | * we will be copying header into skb->data in | |
2014 | * pskb_may_pull so it is in our interest to prefetch | |
2015 | * it now to avoid a possible cache miss | |
2016 | */ | |
2017 | prefetchw(skb->data); | |
2018 | ||
2019 | /* | |
2020 | * Delay unmapping of the first packet. It carries the | |
2021 | * header information, HW may still access the header | |
2022 | * after the writeback. Only unmap it when EOP is | |
2023 | * reached | |
2024 | */ | |
2025 | if (likely(ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_EOP))) | |
2026 | goto dma_sync; | |
2027 | ||
2028 | IXGBE_CB(skb)->dma = rx_buffer->dma; | |
2029 | } else { | |
2030 | if (ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_EOP)) | |
2031 | ixgbe_dma_sync_frag(rx_ring, skb); | |
2032 | ||
2033 | dma_sync: | |
2034 | /* we are reusing so sync this buffer for CPU use */ | |
2035 | dma_sync_single_range_for_cpu(rx_ring->dev, | |
2036 | rx_buffer->dma, | |
2037 | rx_buffer->page_offset, | |
2038 | ixgbe_rx_bufsz(rx_ring), | |
2039 | DMA_FROM_DEVICE); | |
2040 | } | |
2041 | ||
2042 | /* pull page into skb */ | |
2043 | if (ixgbe_add_rx_frag(rx_ring, rx_buffer, rx_desc, skb)) { | |
2044 | /* hand second half of page back to the ring */ | |
2045 | ixgbe_reuse_rx_page(rx_ring, rx_buffer); | |
2046 | } else if (IXGBE_CB(skb)->dma == rx_buffer->dma) { | |
2047 | /* the page has been released from the ring */ | |
2048 | IXGBE_CB(skb)->page_released = true; | |
2049 | } else { | |
2050 | /* we are not reusing the buffer so unmap it */ | |
2051 | dma_unmap_page(rx_ring->dev, rx_buffer->dma, | |
2052 | ixgbe_rx_pg_size(rx_ring), | |
2053 | DMA_FROM_DEVICE); | |
2054 | } | |
2055 | ||
2056 | /* clear contents of buffer_info */ | |
2057 | rx_buffer->skb = NULL; | |
2058 | rx_buffer->dma = 0; | |
2059 | rx_buffer->page = NULL; | |
2060 | ||
2061 | return skb; | |
f800326d AD |
2062 | } |
2063 | ||
2064 | /** | |
2065 | * ixgbe_clean_rx_irq - Clean completed descriptors from Rx ring - bounce buf | |
2066 | * @q_vector: structure containing interrupt and ring information | |
2067 | * @rx_ring: rx descriptor ring to transact packets on | |
2068 | * @budget: Total limit on number of packets to process | |
2069 | * | |
2070 | * This function provides a "bounce buffer" approach to Rx interrupt | |
2071 | * processing. The advantage to this is that on systems that have | |
2072 | * expensive overhead for IOMMU access this provides a means of avoiding | |
2073 | * it by maintaining the mapping of the page to the syste. | |
2074 | * | |
5a85e737 | 2075 | * Returns amount of work completed |
f800326d | 2076 | **/ |
5a85e737 | 2077 | static int ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector, |
e8e9f696 | 2078 | struct ixgbe_ring *rx_ring, |
f4de00ed | 2079 | const int budget) |
9a799d71 | 2080 | { |
d2f4fbe2 | 2081 | unsigned int total_rx_bytes = 0, total_rx_packets = 0; |
3f2d1c0f | 2082 | #ifdef IXGBE_FCOE |
f800326d | 2083 | struct ixgbe_adapter *adapter = q_vector->adapter; |
4ffdf91a MR |
2084 | int ddp_bytes; |
2085 | unsigned int mss = 0; | |
3d8fd385 | 2086 | #endif /* IXGBE_FCOE */ |
f800326d | 2087 | u16 cleaned_count = ixgbe_desc_unused(rx_ring); |
9a799d71 | 2088 | |
fdabfc8a | 2089 | while (likely(total_rx_packets < budget)) { |
f800326d AD |
2090 | union ixgbe_adv_rx_desc *rx_desc; |
2091 | struct sk_buff *skb; | |
f800326d AD |
2092 | |
2093 | /* return some buffers to hardware, one at a time is too slow */ | |
2094 | if (cleaned_count >= IXGBE_RX_BUFFER_WRITE) { | |
2095 | ixgbe_alloc_rx_buffers(rx_ring, cleaned_count); | |
2096 | cleaned_count = 0; | |
2097 | } | |
2098 | ||
18806c9e | 2099 | rx_desc = IXGBE_RX_DESC(rx_ring, rx_ring->next_to_clean); |
f800326d AD |
2100 | |
2101 | if (!ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_DD)) | |
2102 | break; | |
9a799d71 | 2103 | |
f800326d AD |
2104 | /* |
2105 | * This memory barrier is needed to keep us from reading | |
2106 | * any other fields out of the rx_desc until we know the | |
2107 | * RXD_STAT_DD bit is set | |
2108 | */ | |
2109 | rmb(); | |
9a799d71 | 2110 | |
18806c9e AD |
2111 | /* retrieve a buffer from the ring */ |
2112 | skb = ixgbe_fetch_rx_buffer(rx_ring, rx_desc); | |
f800326d | 2113 | |
18806c9e AD |
2114 | /* exit if we failed to retrieve a buffer */ |
2115 | if (!skb) | |
2116 | break; | |
9a799d71 | 2117 | |
9a799d71 | 2118 | cleaned_count++; |
f8212f97 | 2119 | |
f800326d AD |
2120 | /* place incomplete frames back on ring for completion */ |
2121 | if (ixgbe_is_non_eop(rx_ring, rx_desc, skb)) | |
2122 | continue; | |
c267fc16 | 2123 | |
f800326d AD |
2124 | /* verify the packet layout is correct */ |
2125 | if (ixgbe_cleanup_headers(rx_ring, rx_desc, skb)) | |
2126 | continue; | |
9a799d71 | 2127 | |
d2f4fbe2 AV |
2128 | /* probably a little skewed due to removing CRC */ |
2129 | total_rx_bytes += skb->len; | |
d2f4fbe2 | 2130 | |
8a0da21b AD |
2131 | /* populate checksum, timestamp, VLAN, and protocol */ |
2132 | ixgbe_process_skb_fields(rx_ring, rx_desc, skb); | |
2133 | ||
332d4a7d YZ |
2134 | #ifdef IXGBE_FCOE |
2135 | /* if ddp, not passing to ULD unless for FCP_RSP or error */ | |
57efd44c | 2136 | if (ixgbe_rx_is_fcoe(rx_ring, rx_desc)) { |
f56e0cb1 | 2137 | ddp_bytes = ixgbe_fcoe_ddp(adapter, rx_desc, skb); |
4ffdf91a MR |
2138 | /* include DDPed FCoE data */ |
2139 | if (ddp_bytes > 0) { | |
2140 | if (!mss) { | |
2141 | mss = rx_ring->netdev->mtu - | |
2142 | sizeof(struct fcoe_hdr) - | |
2143 | sizeof(struct fc_frame_header) - | |
2144 | sizeof(struct fcoe_crc_eof); | |
2145 | if (mss > 512) | |
2146 | mss &= ~511; | |
2147 | } | |
2148 | total_rx_bytes += ddp_bytes; | |
2149 | total_rx_packets += DIV_ROUND_UP(ddp_bytes, | |
2150 | mss); | |
2151 | } | |
63d635b2 AD |
2152 | if (!ddp_bytes) { |
2153 | dev_kfree_skb_any(skb); | |
f800326d | 2154 | continue; |
63d635b2 | 2155 | } |
3d8fd385 | 2156 | } |
f800326d | 2157 | |
332d4a7d | 2158 | #endif /* IXGBE_FCOE */ |
8b80cda5 | 2159 | skb_mark_napi_id(skb, &q_vector->napi); |
8a0da21b | 2160 | ixgbe_rx_skb(q_vector, skb); |
9a799d71 | 2161 | |
f800326d | 2162 | /* update budget accounting */ |
f4de00ed | 2163 | total_rx_packets++; |
fdabfc8a | 2164 | } |
9a799d71 | 2165 | |
c267fc16 AD |
2166 | u64_stats_update_begin(&rx_ring->syncp); |
2167 | rx_ring->stats.packets += total_rx_packets; | |
2168 | rx_ring->stats.bytes += total_rx_bytes; | |
2169 | u64_stats_update_end(&rx_ring->syncp); | |
bd198058 AD |
2170 | q_vector->rx.total_packets += total_rx_packets; |
2171 | q_vector->rx.total_bytes += total_rx_bytes; | |
4ff7fb12 | 2172 | |
f800326d AD |
2173 | if (cleaned_count) |
2174 | ixgbe_alloc_rx_buffers(rx_ring, cleaned_count); | |
2175 | ||
5a85e737 | 2176 | return total_rx_packets; |
9a799d71 AK |
2177 | } |
2178 | ||
e0d1095a | 2179 | #ifdef CONFIG_NET_RX_BUSY_POLL |
5a85e737 ET |
2180 | /* must be called with local_bh_disable()d */ |
2181 | static int ixgbe_low_latency_recv(struct napi_struct *napi) | |
2182 | { | |
2183 | struct ixgbe_q_vector *q_vector = | |
2184 | container_of(napi, struct ixgbe_q_vector, napi); | |
2185 | struct ixgbe_adapter *adapter = q_vector->adapter; | |
2186 | struct ixgbe_ring *ring; | |
2187 | int found = 0; | |
2188 | ||
2189 | if (test_bit(__IXGBE_DOWN, &adapter->state)) | |
2190 | return LL_FLUSH_FAILED; | |
2191 | ||
2192 | if (!ixgbe_qv_lock_poll(q_vector)) | |
2193 | return LL_FLUSH_BUSY; | |
2194 | ||
2195 | ixgbe_for_each_ring(ring, q_vector->rx) { | |
2196 | found = ixgbe_clean_rx_irq(q_vector, ring, 4); | |
b4640030 | 2197 | #ifdef BP_EXTENDED_STATS |
7e15b90f ET |
2198 | if (found) |
2199 | ring->stats.cleaned += found; | |
2200 | else | |
2201 | ring->stats.misses++; | |
2202 | #endif | |
5a85e737 ET |
2203 | if (found) |
2204 | break; | |
2205 | } | |
2206 | ||
2207 | ixgbe_qv_unlock_poll(q_vector); | |
2208 | ||
2209 | return found; | |
2210 | } | |
e0d1095a | 2211 | #endif /* CONFIG_NET_RX_BUSY_POLL */ |
5a85e737 | 2212 | |
9a799d71 AK |
2213 | /** |
2214 | * ixgbe_configure_msix - Configure MSI-X hardware | |
2215 | * @adapter: board private structure | |
2216 | * | |
2217 | * ixgbe_configure_msix sets up the hardware to properly generate MSI-X | |
2218 | * interrupts. | |
2219 | **/ | |
2220 | static void ixgbe_configure_msix(struct ixgbe_adapter *adapter) | |
2221 | { | |
021230d4 | 2222 | struct ixgbe_q_vector *q_vector; |
49c7ffbe | 2223 | int v_idx; |
021230d4 | 2224 | u32 mask; |
9a799d71 | 2225 | |
8e34d1aa AD |
2226 | /* Populate MSIX to EITR Select */ |
2227 | if (adapter->num_vfs > 32) { | |
2228 | u32 eitrsel = (1 << (adapter->num_vfs - 32)) - 1; | |
2229 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, eitrsel); | |
2230 | } | |
2231 | ||
4df10466 JB |
2232 | /* |
2233 | * Populate the IVAR table and set the ITR values to the | |
021230d4 AV |
2234 | * corresponding register. |
2235 | */ | |
49c7ffbe | 2236 | for (v_idx = 0; v_idx < adapter->num_q_vectors; v_idx++) { |
efe3d3c8 | 2237 | struct ixgbe_ring *ring; |
7a921c93 | 2238 | q_vector = adapter->q_vector[v_idx]; |
021230d4 | 2239 | |
a557928e | 2240 | ixgbe_for_each_ring(ring, q_vector->rx) |
efe3d3c8 AD |
2241 | ixgbe_set_ivar(adapter, 0, ring->reg_idx, v_idx); |
2242 | ||
a557928e | 2243 | ixgbe_for_each_ring(ring, q_vector->tx) |
efe3d3c8 AD |
2244 | ixgbe_set_ivar(adapter, 1, ring->reg_idx, v_idx); |
2245 | ||
fe49f04a | 2246 | ixgbe_write_eitr(q_vector); |
9a799d71 AK |
2247 | } |
2248 | ||
bd508178 AD |
2249 | switch (adapter->hw.mac.type) { |
2250 | case ixgbe_mac_82598EB: | |
e8e26350 | 2251 | ixgbe_set_ivar(adapter, -1, IXGBE_IVAR_OTHER_CAUSES_INDEX, |
e8e9f696 | 2252 | v_idx); |
bd508178 AD |
2253 | break; |
2254 | case ixgbe_mac_82599EB: | |
b93a2226 | 2255 | case ixgbe_mac_X540: |
e8e26350 | 2256 | ixgbe_set_ivar(adapter, -1, 1, v_idx); |
bd508178 | 2257 | break; |
bd508178 AD |
2258 | default: |
2259 | break; | |
2260 | } | |
021230d4 AV |
2261 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITR(v_idx), 1950); |
2262 | ||
41fb9248 | 2263 | /* set up to autoclear timer, and the vectors */ |
021230d4 | 2264 | mask = IXGBE_EIMS_ENABLE_MASK; |
d5bf4f67 ET |
2265 | mask &= ~(IXGBE_EIMS_OTHER | |
2266 | IXGBE_EIMS_MAILBOX | | |
2267 | IXGBE_EIMS_LSC); | |
2268 | ||
021230d4 | 2269 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIAC, mask); |
9a799d71 AK |
2270 | } |
2271 | ||
f494e8fa AV |
2272 | enum latency_range { |
2273 | lowest_latency = 0, | |
2274 | low_latency = 1, | |
2275 | bulk_latency = 2, | |
2276 | latency_invalid = 255 | |
2277 | }; | |
2278 | ||
2279 | /** | |
2280 | * ixgbe_update_itr - update the dynamic ITR value based on statistics | |
bd198058 AD |
2281 | * @q_vector: structure containing interrupt and ring information |
2282 | * @ring_container: structure containing ring performance data | |
f494e8fa AV |
2283 | * |
2284 | * Stores a new ITR value based on packets and byte | |
2285 | * counts during the last interrupt. The advantage of per interrupt | |
2286 | * computation is faster updates and more accurate ITR for the current | |
2287 | * traffic pattern. Constants in this function were computed | |
2288 | * based on theoretical maximum wire speed and thresholds were set based | |
2289 | * on testing data as well as attempting to minimize response time | |
2290 | * while increasing bulk throughput. | |
2291 | * this functionality is controlled by the InterruptThrottleRate module | |
2292 | * parameter (see ixgbe_param.c) | |
2293 | **/ | |
bd198058 AD |
2294 | static void ixgbe_update_itr(struct ixgbe_q_vector *q_vector, |
2295 | struct ixgbe_ring_container *ring_container) | |
f494e8fa | 2296 | { |
bd198058 AD |
2297 | int bytes = ring_container->total_bytes; |
2298 | int packets = ring_container->total_packets; | |
2299 | u32 timepassed_us; | |
621bd70e | 2300 | u64 bytes_perint; |
bd198058 | 2301 | u8 itr_setting = ring_container->itr; |
f494e8fa AV |
2302 | |
2303 | if (packets == 0) | |
bd198058 | 2304 | return; |
f494e8fa AV |
2305 | |
2306 | /* simple throttlerate management | |
621bd70e AD |
2307 | * 0-10MB/s lowest (100000 ints/s) |
2308 | * 10-20MB/s low (20000 ints/s) | |
2309 | * 20-1249MB/s bulk (8000 ints/s) | |
f494e8fa AV |
2310 | */ |
2311 | /* what was last interrupt timeslice? */ | |
d5bf4f67 | 2312 | timepassed_us = q_vector->itr >> 2; |
bdbeefe8 DS |
2313 | if (timepassed_us == 0) |
2314 | return; | |
2315 | ||
f494e8fa AV |
2316 | bytes_perint = bytes / timepassed_us; /* bytes/usec */ |
2317 | ||
2318 | switch (itr_setting) { | |
2319 | case lowest_latency: | |
621bd70e | 2320 | if (bytes_perint > 10) |
bd198058 | 2321 | itr_setting = low_latency; |
f494e8fa AV |
2322 | break; |
2323 | case low_latency: | |
621bd70e | 2324 | if (bytes_perint > 20) |
bd198058 | 2325 | itr_setting = bulk_latency; |
621bd70e | 2326 | else if (bytes_perint <= 10) |
bd198058 | 2327 | itr_setting = lowest_latency; |
f494e8fa AV |
2328 | break; |
2329 | case bulk_latency: | |
621bd70e | 2330 | if (bytes_perint <= 20) |
bd198058 | 2331 | itr_setting = low_latency; |
f494e8fa AV |
2332 | break; |
2333 | } | |
2334 | ||
bd198058 AD |
2335 | /* clear work counters since we have the values we need */ |
2336 | ring_container->total_bytes = 0; | |
2337 | ring_container->total_packets = 0; | |
2338 | ||
2339 | /* write updated itr to ring container */ | |
2340 | ring_container->itr = itr_setting; | |
f494e8fa AV |
2341 | } |
2342 | ||
509ee935 JB |
2343 | /** |
2344 | * ixgbe_write_eitr - write EITR register in hardware specific way | |
fe49f04a | 2345 | * @q_vector: structure containing interrupt and ring information |
509ee935 JB |
2346 | * |
2347 | * This function is made to be called by ethtool and by the driver | |
2348 | * when it needs to update EITR registers at runtime. Hardware | |
2349 | * specific quirks/differences are taken care of here. | |
2350 | */ | |
fe49f04a | 2351 | void ixgbe_write_eitr(struct ixgbe_q_vector *q_vector) |
509ee935 | 2352 | { |
fe49f04a | 2353 | struct ixgbe_adapter *adapter = q_vector->adapter; |
509ee935 | 2354 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a | 2355 | int v_idx = q_vector->v_idx; |
5d967eb7 | 2356 | u32 itr_reg = q_vector->itr & IXGBE_MAX_EITR; |
fe49f04a | 2357 | |
bd508178 AD |
2358 | switch (adapter->hw.mac.type) { |
2359 | case ixgbe_mac_82598EB: | |
509ee935 JB |
2360 | /* must write high and low 16 bits to reset counter */ |
2361 | itr_reg |= (itr_reg << 16); | |
bd508178 AD |
2362 | break; |
2363 | case ixgbe_mac_82599EB: | |
b93a2226 | 2364 | case ixgbe_mac_X540: |
509ee935 JB |
2365 | /* |
2366 | * set the WDIS bit to not clear the timer bits and cause an | |
2367 | * immediate assertion of the interrupt | |
2368 | */ | |
2369 | itr_reg |= IXGBE_EITR_CNT_WDIS; | |
bd508178 AD |
2370 | break; |
2371 | default: | |
2372 | break; | |
509ee935 JB |
2373 | } |
2374 | IXGBE_WRITE_REG(hw, IXGBE_EITR(v_idx), itr_reg); | |
2375 | } | |
2376 | ||
bd198058 | 2377 | static void ixgbe_set_itr(struct ixgbe_q_vector *q_vector) |
f494e8fa | 2378 | { |
d5bf4f67 | 2379 | u32 new_itr = q_vector->itr; |
bd198058 | 2380 | u8 current_itr; |
f494e8fa | 2381 | |
bd198058 AD |
2382 | ixgbe_update_itr(q_vector, &q_vector->tx); |
2383 | ixgbe_update_itr(q_vector, &q_vector->rx); | |
f494e8fa | 2384 | |
08c8833b | 2385 | current_itr = max(q_vector->rx.itr, q_vector->tx.itr); |
f494e8fa AV |
2386 | |
2387 | switch (current_itr) { | |
2388 | /* counts and packets in update_itr are dependent on these numbers */ | |
2389 | case lowest_latency: | |
d5bf4f67 | 2390 | new_itr = IXGBE_100K_ITR; |
f494e8fa AV |
2391 | break; |
2392 | case low_latency: | |
d5bf4f67 | 2393 | new_itr = IXGBE_20K_ITR; |
f494e8fa AV |
2394 | break; |
2395 | case bulk_latency: | |
d5bf4f67 | 2396 | new_itr = IXGBE_8K_ITR; |
f494e8fa | 2397 | break; |
bd198058 AD |
2398 | default: |
2399 | break; | |
f494e8fa AV |
2400 | } |
2401 | ||
d5bf4f67 | 2402 | if (new_itr != q_vector->itr) { |
fe49f04a | 2403 | /* do an exponential smoothing */ |
d5bf4f67 ET |
2404 | new_itr = (10 * new_itr * q_vector->itr) / |
2405 | ((9 * new_itr) + q_vector->itr); | |
509ee935 | 2406 | |
bd198058 | 2407 | /* save the algorithm value here */ |
5d967eb7 | 2408 | q_vector->itr = new_itr; |
fe49f04a AD |
2409 | |
2410 | ixgbe_write_eitr(q_vector); | |
f494e8fa | 2411 | } |
f494e8fa AV |
2412 | } |
2413 | ||
119fc60a | 2414 | /** |
de88eeeb | 2415 | * ixgbe_check_overtemp_subtask - check for over temperature |
f0f9778d | 2416 | * @adapter: pointer to adapter |
119fc60a | 2417 | **/ |
f0f9778d | 2418 | static void ixgbe_check_overtemp_subtask(struct ixgbe_adapter *adapter) |
119fc60a | 2419 | { |
119fc60a MC |
2420 | struct ixgbe_hw *hw = &adapter->hw; |
2421 | u32 eicr = adapter->interrupt_event; | |
2422 | ||
f0f9778d | 2423 | if (test_bit(__IXGBE_DOWN, &adapter->state)) |
7ca647bd JP |
2424 | return; |
2425 | ||
f0f9778d AD |
2426 | if (!(adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) && |
2427 | !(adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_EVENT)) | |
2428 | return; | |
2429 | ||
2430 | adapter->flags2 &= ~IXGBE_FLAG2_TEMP_SENSOR_EVENT; | |
2431 | ||
7ca647bd | 2432 | switch (hw->device_id) { |
f0f9778d AD |
2433 | case IXGBE_DEV_ID_82599_T3_LOM: |
2434 | /* | |
2435 | * Since the warning interrupt is for both ports | |
2436 | * we don't have to check if: | |
2437 | * - This interrupt wasn't for our port. | |
2438 | * - We may have missed the interrupt so always have to | |
2439 | * check if we got a LSC | |
2440 | */ | |
2441 | if (!(eicr & IXGBE_EICR_GPI_SDP0) && | |
2442 | !(eicr & IXGBE_EICR_LSC)) | |
2443 | return; | |
2444 | ||
2445 | if (!(eicr & IXGBE_EICR_LSC) && hw->mac.ops.check_link) { | |
3d292265 | 2446 | u32 speed; |
f0f9778d | 2447 | bool link_up = false; |
7ca647bd | 2448 | |
3d292265 | 2449 | hw->mac.ops.check_link(hw, &speed, &link_up, false); |
7ca647bd | 2450 | |
f0f9778d AD |
2451 | if (link_up) |
2452 | return; | |
2453 | } | |
2454 | ||
2455 | /* Check if this is not due to overtemp */ | |
2456 | if (hw->phy.ops.check_overtemp(hw) != IXGBE_ERR_OVERTEMP) | |
2457 | return; | |
2458 | ||
2459 | break; | |
7ca647bd JP |
2460 | default: |
2461 | if (!(eicr & IXGBE_EICR_GPI_SDP0)) | |
119fc60a | 2462 | return; |
7ca647bd | 2463 | break; |
119fc60a | 2464 | } |
7ca647bd JP |
2465 | e_crit(drv, |
2466 | "Network adapter has been stopped because it has over heated. " | |
2467 | "Restart the computer. If the problem persists, " | |
2468 | "power off the system and replace the adapter\n"); | |
f0f9778d AD |
2469 | |
2470 | adapter->interrupt_event = 0; | |
119fc60a MC |
2471 | } |
2472 | ||
0befdb3e JB |
2473 | static void ixgbe_check_fan_failure(struct ixgbe_adapter *adapter, u32 eicr) |
2474 | { | |
2475 | struct ixgbe_hw *hw = &adapter->hw; | |
2476 | ||
2477 | if ((adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) && | |
2478 | (eicr & IXGBE_EICR_GPI_SDP1)) { | |
396e799c | 2479 | e_crit(probe, "Fan has stopped, replace the adapter\n"); |
0befdb3e JB |
2480 | /* write to clear the interrupt */ |
2481 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP1); | |
2482 | } | |
2483 | } | |
cf8280ee | 2484 | |
4f51bf70 JK |
2485 | static void ixgbe_check_overtemp_event(struct ixgbe_adapter *adapter, u32 eicr) |
2486 | { | |
2487 | if (!(adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE)) | |
2488 | return; | |
2489 | ||
2490 | switch (adapter->hw.mac.type) { | |
2491 | case ixgbe_mac_82599EB: | |
2492 | /* | |
2493 | * Need to check link state so complete overtemp check | |
2494 | * on service task | |
2495 | */ | |
2496 | if (((eicr & IXGBE_EICR_GPI_SDP0) || (eicr & IXGBE_EICR_LSC)) && | |
2497 | (!test_bit(__IXGBE_DOWN, &adapter->state))) { | |
2498 | adapter->interrupt_event = eicr; | |
2499 | adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_EVENT; | |
2500 | ixgbe_service_event_schedule(adapter); | |
2501 | return; | |
2502 | } | |
2503 | return; | |
2504 | case ixgbe_mac_X540: | |
2505 | if (!(eicr & IXGBE_EICR_TS)) | |
2506 | return; | |
2507 | break; | |
2508 | default: | |
2509 | return; | |
2510 | } | |
2511 | ||
2512 | e_crit(drv, | |
2513 | "Network adapter has been stopped because it has over heated. " | |
2514 | "Restart the computer. If the problem persists, " | |
2515 | "power off the system and replace the adapter\n"); | |
2516 | } | |
2517 | ||
e8e26350 PW |
2518 | static void ixgbe_check_sfp_event(struct ixgbe_adapter *adapter, u32 eicr) |
2519 | { | |
2520 | struct ixgbe_hw *hw = &adapter->hw; | |
2521 | ||
73c4b7cd AD |
2522 | if (eicr & IXGBE_EICR_GPI_SDP2) { |
2523 | /* Clear the interrupt */ | |
2524 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP2); | |
7086400d AD |
2525 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { |
2526 | adapter->flags2 |= IXGBE_FLAG2_SFP_NEEDS_RESET; | |
2527 | ixgbe_service_event_schedule(adapter); | |
2528 | } | |
73c4b7cd AD |
2529 | } |
2530 | ||
e8e26350 PW |
2531 | if (eicr & IXGBE_EICR_GPI_SDP1) { |
2532 | /* Clear the interrupt */ | |
2533 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP1); | |
7086400d AD |
2534 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { |
2535 | adapter->flags |= IXGBE_FLAG_NEED_LINK_CONFIG; | |
2536 | ixgbe_service_event_schedule(adapter); | |
2537 | } | |
e8e26350 PW |
2538 | } |
2539 | } | |
2540 | ||
cf8280ee JB |
2541 | static void ixgbe_check_lsc(struct ixgbe_adapter *adapter) |
2542 | { | |
2543 | struct ixgbe_hw *hw = &adapter->hw; | |
2544 | ||
2545 | adapter->lsc_int++; | |
2546 | adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; | |
2547 | adapter->link_check_timeout = jiffies; | |
2548 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { | |
2549 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_EIMC_LSC); | |
8a0717f3 | 2550 | IXGBE_WRITE_FLUSH(hw); |
93c52dd0 | 2551 | ixgbe_service_event_schedule(adapter); |
cf8280ee JB |
2552 | } |
2553 | } | |
2554 | ||
fe49f04a AD |
2555 | static inline void ixgbe_irq_enable_queues(struct ixgbe_adapter *adapter, |
2556 | u64 qmask) | |
2557 | { | |
2558 | u32 mask; | |
bd508178 | 2559 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a | 2560 | |
bd508178 AD |
2561 | switch (hw->mac.type) { |
2562 | case ixgbe_mac_82598EB: | |
fe49f04a | 2563 | mask = (IXGBE_EIMS_RTX_QUEUE & qmask); |
bd508178 AD |
2564 | IXGBE_WRITE_REG(hw, IXGBE_EIMS, mask); |
2565 | break; | |
2566 | case ixgbe_mac_82599EB: | |
b93a2226 | 2567 | case ixgbe_mac_X540: |
fe49f04a | 2568 | mask = (qmask & 0xFFFFFFFF); |
bd508178 AD |
2569 | if (mask) |
2570 | IXGBE_WRITE_REG(hw, IXGBE_EIMS_EX(0), mask); | |
fe49f04a | 2571 | mask = (qmask >> 32); |
bd508178 AD |
2572 | if (mask) |
2573 | IXGBE_WRITE_REG(hw, IXGBE_EIMS_EX(1), mask); | |
2574 | break; | |
2575 | default: | |
2576 | break; | |
fe49f04a AD |
2577 | } |
2578 | /* skip the flush */ | |
2579 | } | |
2580 | ||
2581 | static inline void ixgbe_irq_disable_queues(struct ixgbe_adapter *adapter, | |
e8e9f696 | 2582 | u64 qmask) |
fe49f04a AD |
2583 | { |
2584 | u32 mask; | |
bd508178 | 2585 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a | 2586 | |
bd508178 AD |
2587 | switch (hw->mac.type) { |
2588 | case ixgbe_mac_82598EB: | |
fe49f04a | 2589 | mask = (IXGBE_EIMS_RTX_QUEUE & qmask); |
bd508178 AD |
2590 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, mask); |
2591 | break; | |
2592 | case ixgbe_mac_82599EB: | |
b93a2226 | 2593 | case ixgbe_mac_X540: |
fe49f04a | 2594 | mask = (qmask & 0xFFFFFFFF); |
bd508178 AD |
2595 | if (mask) |
2596 | IXGBE_WRITE_REG(hw, IXGBE_EIMC_EX(0), mask); | |
fe49f04a | 2597 | mask = (qmask >> 32); |
bd508178 AD |
2598 | if (mask) |
2599 | IXGBE_WRITE_REG(hw, IXGBE_EIMC_EX(1), mask); | |
2600 | break; | |
2601 | default: | |
2602 | break; | |
fe49f04a AD |
2603 | } |
2604 | /* skip the flush */ | |
2605 | } | |
2606 | ||
021230d4 | 2607 | /** |
2c4af694 AD |
2608 | * ixgbe_irq_enable - Enable default interrupt generation settings |
2609 | * @adapter: board private structure | |
021230d4 | 2610 | **/ |
2c4af694 AD |
2611 | static inline void ixgbe_irq_enable(struct ixgbe_adapter *adapter, bool queues, |
2612 | bool flush) | |
9a799d71 | 2613 | { |
2c4af694 | 2614 | u32 mask = (IXGBE_EIMS_ENABLE_MASK & ~IXGBE_EIMS_RTX_QUEUE); |
9a799d71 | 2615 | |
2c4af694 AD |
2616 | /* don't reenable LSC while waiting for link */ |
2617 | if (adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE) | |
2618 | mask &= ~IXGBE_EIMS_LSC; | |
9a799d71 | 2619 | |
2c4af694 | 2620 | if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) |
4f51bf70 JK |
2621 | switch (adapter->hw.mac.type) { |
2622 | case ixgbe_mac_82599EB: | |
2623 | mask |= IXGBE_EIMS_GPI_SDP0; | |
2624 | break; | |
2625 | case ixgbe_mac_X540: | |
2626 | mask |= IXGBE_EIMS_TS; | |
2627 | break; | |
2628 | default: | |
2629 | break; | |
2630 | } | |
2c4af694 AD |
2631 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) |
2632 | mask |= IXGBE_EIMS_GPI_SDP1; | |
2633 | switch (adapter->hw.mac.type) { | |
2634 | case ixgbe_mac_82599EB: | |
2c4af694 AD |
2635 | mask |= IXGBE_EIMS_GPI_SDP1; |
2636 | mask |= IXGBE_EIMS_GPI_SDP2; | |
858bc081 DS |
2637 | case ixgbe_mac_X540: |
2638 | mask |= IXGBE_EIMS_ECC; | |
2c4af694 AD |
2639 | mask |= IXGBE_EIMS_MAILBOX; |
2640 | break; | |
2641 | default: | |
2642 | break; | |
9a799d71 | 2643 | } |
db0677fa | 2644 | |
db0677fa JK |
2645 | if (adapter->hw.mac.type == ixgbe_mac_X540) |
2646 | mask |= IXGBE_EIMS_TIMESYNC; | |
db0677fa | 2647 | |
2c4af694 AD |
2648 | if ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) && |
2649 | !(adapter->flags2 & IXGBE_FLAG2_FDIR_REQUIRES_REINIT)) | |
2650 | mask |= IXGBE_EIMS_FLOW_DIR; | |
9a799d71 | 2651 | |
2c4af694 AD |
2652 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, mask); |
2653 | if (queues) | |
2654 | ixgbe_irq_enable_queues(adapter, ~0); | |
2655 | if (flush) | |
2656 | IXGBE_WRITE_FLUSH(&adapter->hw); | |
9a799d71 AK |
2657 | } |
2658 | ||
2c4af694 | 2659 | static irqreturn_t ixgbe_msix_other(int irq, void *data) |
f0848276 | 2660 | { |
a65151ba | 2661 | struct ixgbe_adapter *adapter = data; |
9a799d71 | 2662 | struct ixgbe_hw *hw = &adapter->hw; |
54037505 | 2663 | u32 eicr; |
91281fd3 | 2664 | |
54037505 DS |
2665 | /* |
2666 | * Workaround for Silicon errata. Use clear-by-write instead | |
2667 | * of clear-by-read. Reading with EICS will return the | |
2668 | * interrupt causes without clearing, which later be done | |
2669 | * with the write to EICR. | |
2670 | */ | |
2671 | eicr = IXGBE_READ_REG(hw, IXGBE_EICS); | |
d87d8307 JK |
2672 | |
2673 | /* The lower 16bits of the EICR register are for the queue interrupts | |
2674 | * which should be masked here in order to not accidently clear them if | |
2675 | * the bits are high when ixgbe_msix_other is called. There is a race | |
2676 | * condition otherwise which results in possible performance loss | |
2677 | * especially if the ixgbe_msix_other interrupt is triggering | |
2678 | * consistently (as it would when PPS is turned on for the X540 device) | |
2679 | */ | |
2680 | eicr &= 0xFFFF0000; | |
2681 | ||
54037505 | 2682 | IXGBE_WRITE_REG(hw, IXGBE_EICR, eicr); |
33cf09c9 | 2683 | |
cf8280ee JB |
2684 | if (eicr & IXGBE_EICR_LSC) |
2685 | ixgbe_check_lsc(adapter); | |
f0848276 | 2686 | |
1cdd1ec8 GR |
2687 | if (eicr & IXGBE_EICR_MAILBOX) |
2688 | ixgbe_msg_task(adapter); | |
efe3d3c8 | 2689 | |
bd508178 AD |
2690 | switch (hw->mac.type) { |
2691 | case ixgbe_mac_82599EB: | |
b93a2226 | 2692 | case ixgbe_mac_X540: |
d773ce2d DS |
2693 | if (eicr & IXGBE_EICR_ECC) { |
2694 | e_info(link, "Received ECC Err, initiating reset\n"); | |
2695 | adapter->flags2 |= IXGBE_FLAG2_RESET_REQUESTED; | |
2696 | ixgbe_service_event_schedule(adapter); | |
2697 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_ECC); | |
2698 | } | |
c4cf55e5 PWJ |
2699 | /* Handle Flow Director Full threshold interrupt */ |
2700 | if (eicr & IXGBE_EICR_FLOW_DIR) { | |
d034acf1 | 2701 | int reinit_count = 0; |
c4cf55e5 | 2702 | int i; |
c4cf55e5 | 2703 | for (i = 0; i < adapter->num_tx_queues; i++) { |
d034acf1 | 2704 | struct ixgbe_ring *ring = adapter->tx_ring[i]; |
7d637bcc | 2705 | if (test_and_clear_bit(__IXGBE_TX_FDIR_INIT_DONE, |
d034acf1 AD |
2706 | &ring->state)) |
2707 | reinit_count++; | |
2708 | } | |
2709 | if (reinit_count) { | |
2710 | /* no more flow director interrupts until after init */ | |
2711 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_EIMC_FLOW_DIR); | |
d034acf1 AD |
2712 | adapter->flags2 |= IXGBE_FLAG2_FDIR_REQUIRES_REINIT; |
2713 | ixgbe_service_event_schedule(adapter); | |
c4cf55e5 PWJ |
2714 | } |
2715 | } | |
f0f9778d | 2716 | ixgbe_check_sfp_event(adapter, eicr); |
4f51bf70 | 2717 | ixgbe_check_overtemp_event(adapter, eicr); |
bd508178 AD |
2718 | break; |
2719 | default: | |
2720 | break; | |
c4cf55e5 | 2721 | } |
f0848276 | 2722 | |
bd508178 | 2723 | ixgbe_check_fan_failure(adapter, eicr); |
db0677fa | 2724 | |
db0677fa JK |
2725 | if (unlikely(eicr & IXGBE_EICR_TIMESYNC)) |
2726 | ixgbe_ptp_check_pps_event(adapter, eicr); | |
efe3d3c8 | 2727 | |
7086400d | 2728 | /* re-enable the original interrupt state, no lsc, no queues */ |
d4f80882 | 2729 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
2c4af694 | 2730 | ixgbe_irq_enable(adapter, false, false); |
f0848276 | 2731 | |
9a799d71 | 2732 | return IRQ_HANDLED; |
f0848276 | 2733 | } |
91281fd3 | 2734 | |
4ff7fb12 | 2735 | static irqreturn_t ixgbe_msix_clean_rings(int irq, void *data) |
91281fd3 | 2736 | { |
021230d4 | 2737 | struct ixgbe_q_vector *q_vector = data; |
91281fd3 | 2738 | |
9b471446 | 2739 | /* EIAM disabled interrupts (on this vector) for us */ |
91281fd3 | 2740 | |
4ff7fb12 AD |
2741 | if (q_vector->rx.ring || q_vector->tx.ring) |
2742 | napi_schedule(&q_vector->napi); | |
91281fd3 | 2743 | |
9a799d71 | 2744 | return IRQ_HANDLED; |
91281fd3 AD |
2745 | } |
2746 | ||
eb01b975 AD |
2747 | /** |
2748 | * ixgbe_poll - NAPI Rx polling callback | |
2749 | * @napi: structure for representing this polling device | |
2750 | * @budget: how many packets driver is allowed to clean | |
2751 | * | |
2752 | * This function is used for legacy and MSI, NAPI mode | |
2753 | **/ | |
8af3c33f | 2754 | int ixgbe_poll(struct napi_struct *napi, int budget) |
eb01b975 AD |
2755 | { |
2756 | struct ixgbe_q_vector *q_vector = | |
2757 | container_of(napi, struct ixgbe_q_vector, napi); | |
2758 | struct ixgbe_adapter *adapter = q_vector->adapter; | |
2759 | struct ixgbe_ring *ring; | |
2760 | int per_ring_budget; | |
2761 | bool clean_complete = true; | |
2762 | ||
2763 | #ifdef CONFIG_IXGBE_DCA | |
2764 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) | |
2765 | ixgbe_update_dca(q_vector); | |
2766 | #endif | |
2767 | ||
2768 | ixgbe_for_each_ring(ring, q_vector->tx) | |
2769 | clean_complete &= !!ixgbe_clean_tx_irq(q_vector, ring); | |
2770 | ||
5a85e737 ET |
2771 | if (!ixgbe_qv_lock_napi(q_vector)) |
2772 | return budget; | |
2773 | ||
eb01b975 AD |
2774 | /* attempt to distribute budget to each queue fairly, but don't allow |
2775 | * the budget to go below 1 because we'll exit polling */ | |
2776 | if (q_vector->rx.count > 1) | |
2777 | per_ring_budget = max(budget/q_vector->rx.count, 1); | |
2778 | else | |
2779 | per_ring_budget = budget; | |
2780 | ||
2781 | ixgbe_for_each_ring(ring, q_vector->rx) | |
5a85e737 ET |
2782 | clean_complete &= (ixgbe_clean_rx_irq(q_vector, ring, |
2783 | per_ring_budget) < per_ring_budget); | |
eb01b975 | 2784 | |
5a85e737 | 2785 | ixgbe_qv_unlock_napi(q_vector); |
eb01b975 AD |
2786 | /* If all work not completed, return budget and keep polling */ |
2787 | if (!clean_complete) | |
2788 | return budget; | |
2789 | ||
2790 | /* all work done, exit the polling mode */ | |
2791 | napi_complete(napi); | |
2792 | if (adapter->rx_itr_setting & 1) | |
2793 | ixgbe_set_itr(q_vector); | |
2794 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) | |
2795 | ixgbe_irq_enable_queues(adapter, ((u64)1 << q_vector->v_idx)); | |
2796 | ||
2797 | return 0; | |
2798 | } | |
2799 | ||
021230d4 AV |
2800 | /** |
2801 | * ixgbe_request_msix_irqs - Initialize MSI-X interrupts | |
2802 | * @adapter: board private structure | |
2803 | * | |
2804 | * ixgbe_request_msix_irqs allocates MSI-X vectors and requests | |
2805 | * interrupts from the kernel. | |
2806 | **/ | |
2807 | static int ixgbe_request_msix_irqs(struct ixgbe_adapter *adapter) | |
2808 | { | |
2809 | struct net_device *netdev = adapter->netdev; | |
207867f5 | 2810 | int vector, err; |
e8e9f696 | 2811 | int ri = 0, ti = 0; |
021230d4 | 2812 | |
49c7ffbe | 2813 | for (vector = 0; vector < adapter->num_q_vectors; vector++) { |
d0759ebb | 2814 | struct ixgbe_q_vector *q_vector = adapter->q_vector[vector]; |
207867f5 | 2815 | struct msix_entry *entry = &adapter->msix_entries[vector]; |
cb13fc20 | 2816 | |
4ff7fb12 | 2817 | if (q_vector->tx.ring && q_vector->rx.ring) { |
9fe93afd | 2818 | snprintf(q_vector->name, sizeof(q_vector->name) - 1, |
4ff7fb12 AD |
2819 | "%s-%s-%d", netdev->name, "TxRx", ri++); |
2820 | ti++; | |
2821 | } else if (q_vector->rx.ring) { | |
9fe93afd | 2822 | snprintf(q_vector->name, sizeof(q_vector->name) - 1, |
4ff7fb12 AD |
2823 | "%s-%s-%d", netdev->name, "rx", ri++); |
2824 | } else if (q_vector->tx.ring) { | |
9fe93afd | 2825 | snprintf(q_vector->name, sizeof(q_vector->name) - 1, |
4ff7fb12 | 2826 | "%s-%s-%d", netdev->name, "tx", ti++); |
d0759ebb AD |
2827 | } else { |
2828 | /* skip this unused q_vector */ | |
2829 | continue; | |
32aa77a4 | 2830 | } |
207867f5 AD |
2831 | err = request_irq(entry->vector, &ixgbe_msix_clean_rings, 0, |
2832 | q_vector->name, q_vector); | |
9a799d71 | 2833 | if (err) { |
396e799c | 2834 | e_err(probe, "request_irq failed for MSIX interrupt " |
849c4542 | 2835 | "Error: %d\n", err); |
021230d4 | 2836 | goto free_queue_irqs; |
9a799d71 | 2837 | } |
207867f5 AD |
2838 | /* If Flow Director is enabled, set interrupt affinity */ |
2839 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { | |
2840 | /* assign the mask for this irq */ | |
2841 | irq_set_affinity_hint(entry->vector, | |
de88eeeb | 2842 | &q_vector->affinity_mask); |
207867f5 | 2843 | } |
9a799d71 AK |
2844 | } |
2845 | ||
021230d4 | 2846 | err = request_irq(adapter->msix_entries[vector].vector, |
2c4af694 | 2847 | ixgbe_msix_other, 0, netdev->name, adapter); |
9a799d71 | 2848 | if (err) { |
de88eeeb | 2849 | e_err(probe, "request_irq for msix_other failed: %d\n", err); |
021230d4 | 2850 | goto free_queue_irqs; |
9a799d71 AK |
2851 | } |
2852 | ||
9a799d71 AK |
2853 | return 0; |
2854 | ||
021230d4 | 2855 | free_queue_irqs: |
207867f5 AD |
2856 | while (vector) { |
2857 | vector--; | |
2858 | irq_set_affinity_hint(adapter->msix_entries[vector].vector, | |
2859 | NULL); | |
2860 | free_irq(adapter->msix_entries[vector].vector, | |
2861 | adapter->q_vector[vector]); | |
2862 | } | |
021230d4 AV |
2863 | adapter->flags &= ~IXGBE_FLAG_MSIX_ENABLED; |
2864 | pci_disable_msix(adapter->pdev); | |
9a799d71 AK |
2865 | kfree(adapter->msix_entries); |
2866 | adapter->msix_entries = NULL; | |
9a799d71 AK |
2867 | return err; |
2868 | } | |
2869 | ||
2870 | /** | |
021230d4 | 2871 | * ixgbe_intr - legacy mode Interrupt Handler |
9a799d71 AK |
2872 | * @irq: interrupt number |
2873 | * @data: pointer to a network interface device structure | |
9a799d71 AK |
2874 | **/ |
2875 | static irqreturn_t ixgbe_intr(int irq, void *data) | |
2876 | { | |
a65151ba | 2877 | struct ixgbe_adapter *adapter = data; |
9a799d71 | 2878 | struct ixgbe_hw *hw = &adapter->hw; |
7a921c93 | 2879 | struct ixgbe_q_vector *q_vector = adapter->q_vector[0]; |
9a799d71 AK |
2880 | u32 eicr; |
2881 | ||
54037505 | 2882 | /* |
24ddd967 | 2883 | * Workaround for silicon errata #26 on 82598. Mask the interrupt |
54037505 DS |
2884 | * before the read of EICR. |
2885 | */ | |
2886 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_IRQ_CLEAR_MASK); | |
2887 | ||
021230d4 | 2888 | /* for NAPI, using EIAM to auto-mask tx/rx interrupt bits on read |
52f33af8 | 2889 | * therefore no explicit interrupt disable is necessary */ |
021230d4 | 2890 | eicr = IXGBE_READ_REG(hw, IXGBE_EICR); |
f47cf66e | 2891 | if (!eicr) { |
6af3b9eb ET |
2892 | /* |
2893 | * shared interrupt alert! | |
f47cf66e | 2894 | * make sure interrupts are enabled because the read will |
6af3b9eb ET |
2895 | * have disabled interrupts due to EIAM |
2896 | * finish the workaround of silicon errata on 82598. Unmask | |
2897 | * the interrupt that we masked before the EICR read. | |
2898 | */ | |
2899 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) | |
2900 | ixgbe_irq_enable(adapter, true, true); | |
9a799d71 | 2901 | return IRQ_NONE; /* Not our interrupt */ |
f47cf66e | 2902 | } |
9a799d71 | 2903 | |
cf8280ee JB |
2904 | if (eicr & IXGBE_EICR_LSC) |
2905 | ixgbe_check_lsc(adapter); | |
021230d4 | 2906 | |
bd508178 AD |
2907 | switch (hw->mac.type) { |
2908 | case ixgbe_mac_82599EB: | |
e8e26350 | 2909 | ixgbe_check_sfp_event(adapter, eicr); |
0ccb974d DS |
2910 | /* Fall through */ |
2911 | case ixgbe_mac_X540: | |
d773ce2d DS |
2912 | if (eicr & IXGBE_EICR_ECC) { |
2913 | e_info(link, "Received ECC Err, initiating reset\n"); | |
2914 | adapter->flags2 |= IXGBE_FLAG2_RESET_REQUESTED; | |
2915 | ixgbe_service_event_schedule(adapter); | |
2916 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_ECC); | |
2917 | } | |
4f51bf70 | 2918 | ixgbe_check_overtemp_event(adapter, eicr); |
bd508178 AD |
2919 | break; |
2920 | default: | |
2921 | break; | |
2922 | } | |
e8e26350 | 2923 | |
0befdb3e | 2924 | ixgbe_check_fan_failure(adapter, eicr); |
db0677fa JK |
2925 | if (unlikely(eicr & IXGBE_EICR_TIMESYNC)) |
2926 | ixgbe_ptp_check_pps_event(adapter, eicr); | |
0befdb3e | 2927 | |
b9f6ed2b AD |
2928 | /* would disable interrupts here but EIAM disabled it */ |
2929 | napi_schedule(&q_vector->napi); | |
9a799d71 | 2930 | |
6af3b9eb ET |
2931 | /* |
2932 | * re-enable link(maybe) and non-queue interrupts, no flush. | |
2933 | * ixgbe_poll will re-enable the queue interrupts | |
2934 | */ | |
6af3b9eb ET |
2935 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
2936 | ixgbe_irq_enable(adapter, false, false); | |
2937 | ||
9a799d71 AK |
2938 | return IRQ_HANDLED; |
2939 | } | |
2940 | ||
2941 | /** | |
2942 | * ixgbe_request_irq - initialize interrupts | |
2943 | * @adapter: board private structure | |
2944 | * | |
2945 | * Attempts to configure interrupts using the best available | |
2946 | * capabilities of the hardware and kernel. | |
2947 | **/ | |
021230d4 | 2948 | static int ixgbe_request_irq(struct ixgbe_adapter *adapter) |
9a799d71 AK |
2949 | { |
2950 | struct net_device *netdev = adapter->netdev; | |
021230d4 | 2951 | int err; |
9a799d71 | 2952 | |
4cc6df29 | 2953 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) |
021230d4 | 2954 | err = ixgbe_request_msix_irqs(adapter); |
4cc6df29 | 2955 | else if (adapter->flags & IXGBE_FLAG_MSI_ENABLED) |
a0607fd3 | 2956 | err = request_irq(adapter->pdev->irq, ixgbe_intr, 0, |
a65151ba | 2957 | netdev->name, adapter); |
4cc6df29 | 2958 | else |
a0607fd3 | 2959 | err = request_irq(adapter->pdev->irq, ixgbe_intr, IRQF_SHARED, |
a65151ba | 2960 | netdev->name, adapter); |
9a799d71 | 2961 | |
de88eeeb | 2962 | if (err) |
396e799c | 2963 | e_err(probe, "request_irq failed, Error %d\n", err); |
9a799d71 | 2964 | |
9a799d71 AK |
2965 | return err; |
2966 | } | |
2967 | ||
2968 | static void ixgbe_free_irq(struct ixgbe_adapter *adapter) | |
2969 | { | |
49c7ffbe | 2970 | int vector; |
9a799d71 | 2971 | |
49c7ffbe AD |
2972 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) { |
2973 | free_irq(adapter->pdev->irq, adapter); | |
2974 | return; | |
2975 | } | |
4cc6df29 | 2976 | |
49c7ffbe AD |
2977 | for (vector = 0; vector < adapter->num_q_vectors; vector++) { |
2978 | struct ixgbe_q_vector *q_vector = adapter->q_vector[vector]; | |
2979 | struct msix_entry *entry = &adapter->msix_entries[vector]; | |
894ff7cf | 2980 | |
49c7ffbe AD |
2981 | /* free only the irqs that were actually requested */ |
2982 | if (!q_vector->rx.ring && !q_vector->tx.ring) | |
2983 | continue; | |
207867f5 | 2984 | |
49c7ffbe AD |
2985 | /* clear the affinity_mask in the IRQ descriptor */ |
2986 | irq_set_affinity_hint(entry->vector, NULL); | |
2987 | ||
2988 | free_irq(entry->vector, q_vector); | |
9a799d71 | 2989 | } |
49c7ffbe AD |
2990 | |
2991 | free_irq(adapter->msix_entries[vector++].vector, adapter); | |
9a799d71 AK |
2992 | } |
2993 | ||
22d5a71b JB |
2994 | /** |
2995 | * ixgbe_irq_disable - Mask off interrupt generation on the NIC | |
2996 | * @adapter: board private structure | |
2997 | **/ | |
2998 | static inline void ixgbe_irq_disable(struct ixgbe_adapter *adapter) | |
2999 | { | |
bd508178 AD |
3000 | switch (adapter->hw.mac.type) { |
3001 | case ixgbe_mac_82598EB: | |
835462fc | 3002 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, ~0); |
bd508178 AD |
3003 | break; |
3004 | case ixgbe_mac_82599EB: | |
b93a2226 | 3005 | case ixgbe_mac_X540: |
835462fc NS |
3006 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, 0xFFFF0000); |
3007 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(0), ~0); | |
22d5a71b | 3008 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(1), ~0); |
bd508178 AD |
3009 | break; |
3010 | default: | |
3011 | break; | |
22d5a71b JB |
3012 | } |
3013 | IXGBE_WRITE_FLUSH(&adapter->hw); | |
3014 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { | |
49c7ffbe AD |
3015 | int vector; |
3016 | ||
3017 | for (vector = 0; vector < adapter->num_q_vectors; vector++) | |
3018 | synchronize_irq(adapter->msix_entries[vector].vector); | |
3019 | ||
3020 | synchronize_irq(adapter->msix_entries[vector++].vector); | |
22d5a71b JB |
3021 | } else { |
3022 | synchronize_irq(adapter->pdev->irq); | |
3023 | } | |
3024 | } | |
3025 | ||
9a799d71 AK |
3026 | /** |
3027 | * ixgbe_configure_msi_and_legacy - Initialize PIN (INTA...) and MSI interrupts | |
3028 | * | |
3029 | **/ | |
3030 | static void ixgbe_configure_msi_and_legacy(struct ixgbe_adapter *adapter) | |
3031 | { | |
d5bf4f67 | 3032 | struct ixgbe_q_vector *q_vector = adapter->q_vector[0]; |
9a799d71 | 3033 | |
d5bf4f67 | 3034 | ixgbe_write_eitr(q_vector); |
9a799d71 | 3035 | |
e8e26350 PW |
3036 | ixgbe_set_ivar(adapter, 0, 0, 0); |
3037 | ixgbe_set_ivar(adapter, 1, 0, 0); | |
021230d4 | 3038 | |
396e799c | 3039 | e_info(hw, "Legacy interrupt IVAR setup done\n"); |
9a799d71 AK |
3040 | } |
3041 | ||
43e69bf0 AD |
3042 | /** |
3043 | * ixgbe_configure_tx_ring - Configure 8259x Tx ring after Reset | |
3044 | * @adapter: board private structure | |
3045 | * @ring: structure containing ring specific data | |
3046 | * | |
3047 | * Configure the Tx descriptor ring after a reset. | |
3048 | **/ | |
84418e3b AD |
3049 | void ixgbe_configure_tx_ring(struct ixgbe_adapter *adapter, |
3050 | struct ixgbe_ring *ring) | |
43e69bf0 AD |
3051 | { |
3052 | struct ixgbe_hw *hw = &adapter->hw; | |
3053 | u64 tdba = ring->dma; | |
2f1860b8 | 3054 | int wait_loop = 10; |
b88c6de2 | 3055 | u32 txdctl = IXGBE_TXDCTL_ENABLE; |
bf29ee6c | 3056 | u8 reg_idx = ring->reg_idx; |
43e69bf0 | 3057 | |
2f1860b8 | 3058 | /* disable queue to avoid issues while updating state */ |
b88c6de2 | 3059 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), 0); |
2f1860b8 AD |
3060 | IXGBE_WRITE_FLUSH(hw); |
3061 | ||
43e69bf0 | 3062 | IXGBE_WRITE_REG(hw, IXGBE_TDBAL(reg_idx), |
e8e9f696 | 3063 | (tdba & DMA_BIT_MASK(32))); |
43e69bf0 AD |
3064 | IXGBE_WRITE_REG(hw, IXGBE_TDBAH(reg_idx), (tdba >> 32)); |
3065 | IXGBE_WRITE_REG(hw, IXGBE_TDLEN(reg_idx), | |
3066 | ring->count * sizeof(union ixgbe_adv_tx_desc)); | |
3067 | IXGBE_WRITE_REG(hw, IXGBE_TDH(reg_idx), 0); | |
3068 | IXGBE_WRITE_REG(hw, IXGBE_TDT(reg_idx), 0); | |
2a1a091c | 3069 | ring->tail = adapter->io_addr + IXGBE_TDT(reg_idx); |
43e69bf0 | 3070 | |
b88c6de2 AD |
3071 | /* |
3072 | * set WTHRESH to encourage burst writeback, it should not be set | |
67da097e ET |
3073 | * higher than 1 when: |
3074 | * - ITR is 0 as it could cause false TX hangs | |
3075 | * - ITR is set to > 100k int/sec and BQL is enabled | |
b88c6de2 AD |
3076 | * |
3077 | * In order to avoid issues WTHRESH + PTHRESH should always be equal | |
3078 | * to or less than the number of on chip descriptors, which is | |
3079 | * currently 40. | |
3080 | */ | |
67da097e ET |
3081 | #if IS_ENABLED(CONFIG_BQL) |
3082 | if (!ring->q_vector || (ring->q_vector->itr < IXGBE_100K_ITR)) | |
3083 | #else | |
e954b374 | 3084 | if (!ring->q_vector || (ring->q_vector->itr < 8)) |
67da097e | 3085 | #endif |
b88c6de2 AD |
3086 | txdctl |= (1 << 16); /* WTHRESH = 1 */ |
3087 | else | |
3088 | txdctl |= (8 << 16); /* WTHRESH = 8 */ | |
3089 | ||
e954b374 AD |
3090 | /* |
3091 | * Setting PTHRESH to 32 both improves performance | |
3092 | * and avoids a TX hang with DFP enabled | |
3093 | */ | |
b88c6de2 AD |
3094 | txdctl |= (1 << 8) | /* HTHRESH = 1 */ |
3095 | 32; /* PTHRESH = 32 */ | |
2f1860b8 AD |
3096 | |
3097 | /* reinitialize flowdirector state */ | |
39cb681b | 3098 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { |
ee9e0f0b AD |
3099 | ring->atr_sample_rate = adapter->atr_sample_rate; |
3100 | ring->atr_count = 0; | |
3101 | set_bit(__IXGBE_TX_FDIR_INIT_DONE, &ring->state); | |
3102 | } else { | |
3103 | ring->atr_sample_rate = 0; | |
3104 | } | |
2f1860b8 | 3105 | |
fd786b7b AD |
3106 | /* initialize XPS */ |
3107 | if (!test_and_set_bit(__IXGBE_TX_XPS_INIT_DONE, &ring->state)) { | |
3108 | struct ixgbe_q_vector *q_vector = ring->q_vector; | |
3109 | ||
3110 | if (q_vector) | |
2a47fa45 | 3111 | netif_set_xps_queue(ring->netdev, |
fd786b7b AD |
3112 | &q_vector->affinity_mask, |
3113 | ring->queue_index); | |
3114 | } | |
3115 | ||
c84d324c JF |
3116 | clear_bit(__IXGBE_HANG_CHECK_ARMED, &ring->state); |
3117 | ||
2f1860b8 | 3118 | /* enable queue */ |
2f1860b8 AD |
3119 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), txdctl); |
3120 | ||
3121 | /* TXDCTL.EN will return 0 on 82598 if link is down, so skip it */ | |
3122 | if (hw->mac.type == ixgbe_mac_82598EB && | |
3123 | !(IXGBE_READ_REG(hw, IXGBE_LINKS) & IXGBE_LINKS_UP)) | |
3124 | return; | |
3125 | ||
3126 | /* poll to verify queue is enabled */ | |
3127 | do { | |
032b4325 | 3128 | usleep_range(1000, 2000); |
2f1860b8 AD |
3129 | txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(reg_idx)); |
3130 | } while (--wait_loop && !(txdctl & IXGBE_TXDCTL_ENABLE)); | |
3131 | if (!wait_loop) | |
3132 | e_err(drv, "Could not enable Tx Queue %d\n", reg_idx); | |
43e69bf0 AD |
3133 | } |
3134 | ||
120ff942 AD |
3135 | static void ixgbe_setup_mtqc(struct ixgbe_adapter *adapter) |
3136 | { | |
3137 | struct ixgbe_hw *hw = &adapter->hw; | |
671c0adb | 3138 | u32 rttdcs, mtqc; |
8b1c0b24 | 3139 | u8 tcs = netdev_get_num_tc(adapter->netdev); |
120ff942 AD |
3140 | |
3141 | if (hw->mac.type == ixgbe_mac_82598EB) | |
3142 | return; | |
3143 | ||
3144 | /* disable the arbiter while setting MTQC */ | |
3145 | rttdcs = IXGBE_READ_REG(hw, IXGBE_RTTDCS); | |
3146 | rttdcs |= IXGBE_RTTDCS_ARBDIS; | |
3147 | IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, rttdcs); | |
3148 | ||
3149 | /* set transmit pool layout */ | |
671c0adb AD |
3150 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { |
3151 | mtqc = IXGBE_MTQC_VT_ENA; | |
3152 | if (tcs > 4) | |
3153 | mtqc |= IXGBE_MTQC_RT_ENA | IXGBE_MTQC_8TC_8TQ; | |
3154 | else if (tcs > 1) | |
3155 | mtqc |= IXGBE_MTQC_RT_ENA | IXGBE_MTQC_4TC_4TQ; | |
3156 | else if (adapter->ring_feature[RING_F_RSS].indices == 4) | |
3157 | mtqc |= IXGBE_MTQC_32VF; | |
3158 | else | |
3159 | mtqc |= IXGBE_MTQC_64VF; | |
3160 | } else { | |
3161 | if (tcs > 4) | |
3162 | mtqc = IXGBE_MTQC_RT_ENA | IXGBE_MTQC_8TC_8TQ; | |
3163 | else if (tcs > 1) | |
3164 | mtqc = IXGBE_MTQC_RT_ENA | IXGBE_MTQC_4TC_4TQ; | |
8b1c0b24 | 3165 | else |
671c0adb AD |
3166 | mtqc = IXGBE_MTQC_64Q_1PB; |
3167 | } | |
120ff942 | 3168 | |
671c0adb | 3169 | IXGBE_WRITE_REG(hw, IXGBE_MTQC, mtqc); |
120ff942 | 3170 | |
671c0adb AD |
3171 | /* Enable Security TX Buffer IFG for multiple pb */ |
3172 | if (tcs) { | |
3173 | u32 sectx = IXGBE_READ_REG(hw, IXGBE_SECTXMINIFG); | |
3174 | sectx |= IXGBE_SECTX_DCB; | |
3175 | IXGBE_WRITE_REG(hw, IXGBE_SECTXMINIFG, sectx); | |
120ff942 AD |
3176 | } |
3177 | ||
3178 | /* re-enable the arbiter */ | |
3179 | rttdcs &= ~IXGBE_RTTDCS_ARBDIS; | |
3180 | IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, rttdcs); | |
3181 | } | |
3182 | ||
9a799d71 | 3183 | /** |
3a581073 | 3184 | * ixgbe_configure_tx - Configure 8259x Transmit Unit after Reset |
9a799d71 AK |
3185 | * @adapter: board private structure |
3186 | * | |
3187 | * Configure the Tx unit of the MAC after a reset. | |
3188 | **/ | |
3189 | static void ixgbe_configure_tx(struct ixgbe_adapter *adapter) | |
3190 | { | |
2f1860b8 AD |
3191 | struct ixgbe_hw *hw = &adapter->hw; |
3192 | u32 dmatxctl; | |
43e69bf0 | 3193 | u32 i; |
9a799d71 | 3194 | |
2f1860b8 AD |
3195 | ixgbe_setup_mtqc(adapter); |
3196 | ||
3197 | if (hw->mac.type != ixgbe_mac_82598EB) { | |
3198 | /* DMATXCTL.EN must be before Tx queues are enabled */ | |
3199 | dmatxctl = IXGBE_READ_REG(hw, IXGBE_DMATXCTL); | |
3200 | dmatxctl |= IXGBE_DMATXCTL_TE; | |
3201 | IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL, dmatxctl); | |
3202 | } | |
3203 | ||
9a799d71 | 3204 | /* Setup the HW Tx Head and Tail descriptor pointers */ |
43e69bf0 AD |
3205 | for (i = 0; i < adapter->num_tx_queues; i++) |
3206 | ixgbe_configure_tx_ring(adapter, adapter->tx_ring[i]); | |
9a799d71 AK |
3207 | } |
3208 | ||
3ebe8fde AD |
3209 | static void ixgbe_enable_rx_drop(struct ixgbe_adapter *adapter, |
3210 | struct ixgbe_ring *ring) | |
3211 | { | |
3212 | struct ixgbe_hw *hw = &adapter->hw; | |
3213 | u8 reg_idx = ring->reg_idx; | |
3214 | u32 srrctl = IXGBE_READ_REG(hw, IXGBE_SRRCTL(reg_idx)); | |
3215 | ||
3216 | srrctl |= IXGBE_SRRCTL_DROP_EN; | |
3217 | ||
3218 | IXGBE_WRITE_REG(hw, IXGBE_SRRCTL(reg_idx), srrctl); | |
3219 | } | |
3220 | ||
3221 | static void ixgbe_disable_rx_drop(struct ixgbe_adapter *adapter, | |
3222 | struct ixgbe_ring *ring) | |
3223 | { | |
3224 | struct ixgbe_hw *hw = &adapter->hw; | |
3225 | u8 reg_idx = ring->reg_idx; | |
3226 | u32 srrctl = IXGBE_READ_REG(hw, IXGBE_SRRCTL(reg_idx)); | |
3227 | ||
3228 | srrctl &= ~IXGBE_SRRCTL_DROP_EN; | |
3229 | ||
3230 | IXGBE_WRITE_REG(hw, IXGBE_SRRCTL(reg_idx), srrctl); | |
3231 | } | |
3232 | ||
3233 | #ifdef CONFIG_IXGBE_DCB | |
3234 | void ixgbe_set_rx_drop_en(struct ixgbe_adapter *adapter) | |
3235 | #else | |
3236 | static void ixgbe_set_rx_drop_en(struct ixgbe_adapter *adapter) | |
3237 | #endif | |
3238 | { | |
3239 | int i; | |
3240 | bool pfc_en = adapter->dcb_cfg.pfc_mode_enable; | |
3241 | ||
3242 | if (adapter->ixgbe_ieee_pfc) | |
3243 | pfc_en |= !!(adapter->ixgbe_ieee_pfc->pfc_en); | |
3244 | ||
3245 | /* | |
3246 | * We should set the drop enable bit if: | |
3247 | * SR-IOV is enabled | |
3248 | * or | |
3249 | * Number of Rx queues > 1 and flow control is disabled | |
3250 | * | |
3251 | * This allows us to avoid head of line blocking for security | |
3252 | * and performance reasons. | |
3253 | */ | |
3254 | if (adapter->num_vfs || (adapter->num_rx_queues > 1 && | |
3255 | !(adapter->hw.fc.current_mode & ixgbe_fc_tx_pause) && !pfc_en)) { | |
3256 | for (i = 0; i < adapter->num_rx_queues; i++) | |
3257 | ixgbe_enable_rx_drop(adapter, adapter->rx_ring[i]); | |
3258 | } else { | |
3259 | for (i = 0; i < adapter->num_rx_queues; i++) | |
3260 | ixgbe_disable_rx_drop(adapter, adapter->rx_ring[i]); | |
3261 | } | |
3262 | } | |
3263 | ||
e8e26350 | 3264 | #define IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT 2 |
cc41ac7c | 3265 | |
a6616b42 | 3266 | static void ixgbe_configure_srrctl(struct ixgbe_adapter *adapter, |
e8e9f696 | 3267 | struct ixgbe_ring *rx_ring) |
cc41ac7c | 3268 | { |
45e9baa5 | 3269 | struct ixgbe_hw *hw = &adapter->hw; |
cc41ac7c | 3270 | u32 srrctl; |
bf29ee6c | 3271 | u8 reg_idx = rx_ring->reg_idx; |
3be1adfb | 3272 | |
45e9baa5 AD |
3273 | if (hw->mac.type == ixgbe_mac_82598EB) { |
3274 | u16 mask = adapter->ring_feature[RING_F_RSS].mask; | |
cc41ac7c | 3275 | |
45e9baa5 AD |
3276 | /* |
3277 | * if VMDq is not active we must program one srrctl register | |
3278 | * per RSS queue since we have enabled RDRXCTL.MVMEN | |
3279 | */ | |
3280 | reg_idx &= mask; | |
3281 | } | |
cc41ac7c | 3282 | |
45e9baa5 AD |
3283 | /* configure header buffer length, needed for RSC */ |
3284 | srrctl = IXGBE_RX_HDR_SIZE << IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT; | |
afafd5b0 | 3285 | |
45e9baa5 | 3286 | /* configure the packet buffer length */ |
f800326d | 3287 | srrctl |= ixgbe_rx_bufsz(rx_ring) >> IXGBE_SRRCTL_BSIZEPKT_SHIFT; |
45e9baa5 AD |
3288 | |
3289 | /* configure descriptor type */ | |
f800326d | 3290 | srrctl |= IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF; |
e8e26350 | 3291 | |
45e9baa5 | 3292 | IXGBE_WRITE_REG(hw, IXGBE_SRRCTL(reg_idx), srrctl); |
cc41ac7c | 3293 | } |
9a799d71 | 3294 | |
05abb126 | 3295 | static void ixgbe_setup_mrqc(struct ixgbe_adapter *adapter) |
0cefafad | 3296 | { |
05abb126 AD |
3297 | struct ixgbe_hw *hw = &adapter->hw; |
3298 | static const u32 seed[10] = { 0xE291D73D, 0x1805EC6C, 0x2A94B30D, | |
e8e9f696 JP |
3299 | 0xA54F2BEC, 0xEA49AF7C, 0xE214AD3D, 0xB855AABE, |
3300 | 0x6A3E67EA, 0x14364D17, 0x3BED200D}; | |
05abb126 AD |
3301 | u32 mrqc = 0, reta = 0; |
3302 | u32 rxcsum; | |
3303 | int i, j; | |
671c0adb AD |
3304 | u16 rss_i = adapter->ring_feature[RING_F_RSS].indices; |
3305 | ||
671c0adb AD |
3306 | /* |
3307 | * Program table for at least 2 queues w/ SR-IOV so that VFs can | |
3308 | * make full use of any rings they may have. We will use the | |
3309 | * PSRTYPE register to control how many rings we use within the PF. | |
3310 | */ | |
3311 | if ((adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) && (rss_i < 2)) | |
3312 | rss_i = 2; | |
0cefafad | 3313 | |
05abb126 AD |
3314 | /* Fill out hash function seeds */ |
3315 | for (i = 0; i < 10; i++) | |
3316 | IXGBE_WRITE_REG(hw, IXGBE_RSSRK(i), seed[i]); | |
3317 | ||
3318 | /* Fill out redirection table */ | |
3319 | for (i = 0, j = 0; i < 128; i++, j++) { | |
671c0adb | 3320 | if (j == rss_i) |
05abb126 AD |
3321 | j = 0; |
3322 | /* reta = 4-byte sliding window of | |
3323 | * 0x00..(indices-1)(indices-1)00..etc. */ | |
3324 | reta = (reta << 8) | (j * 0x11); | |
3325 | if ((i & 3) == 3) | |
3326 | IXGBE_WRITE_REG(hw, IXGBE_RETA(i >> 2), reta); | |
3327 | } | |
0cefafad | 3328 | |
05abb126 AD |
3329 | /* Disable indicating checksum in descriptor, enables RSS hash */ |
3330 | rxcsum = IXGBE_READ_REG(hw, IXGBE_RXCSUM); | |
3331 | rxcsum |= IXGBE_RXCSUM_PCSD; | |
3332 | IXGBE_WRITE_REG(hw, IXGBE_RXCSUM, rxcsum); | |
3333 | ||
671c0adb | 3334 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
fbe7ca7f | 3335 | if (adapter->ring_feature[RING_F_RSS].mask) |
671c0adb | 3336 | mrqc = IXGBE_MRQC_RSSEN; |
8b1c0b24 | 3337 | } else { |
671c0adb AD |
3338 | u8 tcs = netdev_get_num_tc(adapter->netdev); |
3339 | ||
3340 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { | |
3341 | if (tcs > 4) | |
3342 | mrqc = IXGBE_MRQC_VMDQRT8TCEN; /* 8 TCs */ | |
3343 | else if (tcs > 1) | |
3344 | mrqc = IXGBE_MRQC_VMDQRT4TCEN; /* 4 TCs */ | |
3345 | else if (adapter->ring_feature[RING_F_RSS].indices == 4) | |
3346 | mrqc = IXGBE_MRQC_VMDQRSS32EN; | |
8b1c0b24 | 3347 | else |
671c0adb AD |
3348 | mrqc = IXGBE_MRQC_VMDQRSS64EN; |
3349 | } else { | |
3350 | if (tcs > 4) | |
8b1c0b24 | 3351 | mrqc = IXGBE_MRQC_RTRSS8TCEN; |
671c0adb AD |
3352 | else if (tcs > 1) |
3353 | mrqc = IXGBE_MRQC_RTRSS4TCEN; | |
3354 | else | |
3355 | mrqc = IXGBE_MRQC_RSSEN; | |
8b1c0b24 | 3356 | } |
0cefafad JB |
3357 | } |
3358 | ||
05abb126 | 3359 | /* Perform hash on these packet types */ |
671c0adb AD |
3360 | mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4 | |
3361 | IXGBE_MRQC_RSS_FIELD_IPV4_TCP | | |
3362 | IXGBE_MRQC_RSS_FIELD_IPV6 | | |
3363 | IXGBE_MRQC_RSS_FIELD_IPV6_TCP; | |
05abb126 | 3364 | |
ef6afc0c AD |
3365 | if (adapter->flags2 & IXGBE_FLAG2_RSS_FIELD_IPV4_UDP) |
3366 | mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4_UDP; | |
3367 | if (adapter->flags2 & IXGBE_FLAG2_RSS_FIELD_IPV6_UDP) | |
3368 | mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_UDP; | |
3369 | ||
05abb126 | 3370 | IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc); |
0cefafad JB |
3371 | } |
3372 | ||
bb5a9ad2 NS |
3373 | /** |
3374 | * ixgbe_configure_rscctl - enable RSC for the indicated ring | |
3375 | * @adapter: address of board private structure | |
3376 | * @index: index of ring to set | |
bb5a9ad2 | 3377 | **/ |
082757af | 3378 | static void ixgbe_configure_rscctl(struct ixgbe_adapter *adapter, |
7367096a | 3379 | struct ixgbe_ring *ring) |
bb5a9ad2 | 3380 | { |
bb5a9ad2 | 3381 | struct ixgbe_hw *hw = &adapter->hw; |
bb5a9ad2 | 3382 | u32 rscctrl; |
bf29ee6c | 3383 | u8 reg_idx = ring->reg_idx; |
7367096a | 3384 | |
7d637bcc | 3385 | if (!ring_is_rsc_enabled(ring)) |
7367096a | 3386 | return; |
bb5a9ad2 | 3387 | |
7367096a | 3388 | rscctrl = IXGBE_READ_REG(hw, IXGBE_RSCCTL(reg_idx)); |
bb5a9ad2 NS |
3389 | rscctrl |= IXGBE_RSCCTL_RSCEN; |
3390 | /* | |
3391 | * we must limit the number of descriptors so that the | |
3392 | * total size of max desc * buf_len is not greater | |
642c680e | 3393 | * than 65536 |
bb5a9ad2 | 3394 | */ |
f800326d | 3395 | rscctrl |= IXGBE_RSCCTL_MAXDESC_16; |
7367096a | 3396 | IXGBE_WRITE_REG(hw, IXGBE_RSCCTL(reg_idx), rscctrl); |
bb5a9ad2 NS |
3397 | } |
3398 | ||
9e10e045 AD |
3399 | #define IXGBE_MAX_RX_DESC_POLL 10 |
3400 | static void ixgbe_rx_desc_queue_enable(struct ixgbe_adapter *adapter, | |
3401 | struct ixgbe_ring *ring) | |
3402 | { | |
3403 | struct ixgbe_hw *hw = &adapter->hw; | |
9e10e045 AD |
3404 | int wait_loop = IXGBE_MAX_RX_DESC_POLL; |
3405 | u32 rxdctl; | |
bf29ee6c | 3406 | u8 reg_idx = ring->reg_idx; |
9e10e045 | 3407 | |
b0483c8f MR |
3408 | if (ixgbe_removed(hw->hw_addr)) |
3409 | return; | |
9e10e045 AD |
3410 | /* RXDCTL.EN will return 0 on 82598 if link is down, so skip it */ |
3411 | if (hw->mac.type == ixgbe_mac_82598EB && | |
3412 | !(IXGBE_READ_REG(hw, IXGBE_LINKS) & IXGBE_LINKS_UP)) | |
3413 | return; | |
3414 | ||
3415 | do { | |
032b4325 | 3416 | usleep_range(1000, 2000); |
9e10e045 AD |
3417 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); |
3418 | } while (--wait_loop && !(rxdctl & IXGBE_RXDCTL_ENABLE)); | |
3419 | ||
3420 | if (!wait_loop) { | |
3421 | e_err(drv, "RXDCTL.ENABLE on Rx queue %d not set within " | |
3422 | "the polling period\n", reg_idx); | |
3423 | } | |
3424 | } | |
3425 | ||
2d39d576 YZ |
3426 | void ixgbe_disable_rx_queue(struct ixgbe_adapter *adapter, |
3427 | struct ixgbe_ring *ring) | |
3428 | { | |
3429 | struct ixgbe_hw *hw = &adapter->hw; | |
3430 | int wait_loop = IXGBE_MAX_RX_DESC_POLL; | |
3431 | u32 rxdctl; | |
3432 | u8 reg_idx = ring->reg_idx; | |
3433 | ||
b0483c8f MR |
3434 | if (ixgbe_removed(hw->hw_addr)) |
3435 | return; | |
2d39d576 YZ |
3436 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); |
3437 | rxdctl &= ~IXGBE_RXDCTL_ENABLE; | |
3438 | ||
3439 | /* write value back with RXDCTL.ENABLE bit cleared */ | |
3440 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(reg_idx), rxdctl); | |
3441 | ||
3442 | if (hw->mac.type == ixgbe_mac_82598EB && | |
3443 | !(IXGBE_READ_REG(hw, IXGBE_LINKS) & IXGBE_LINKS_UP)) | |
3444 | return; | |
3445 | ||
3446 | /* the hardware may take up to 100us to really disable the rx queue */ | |
3447 | do { | |
3448 | udelay(10); | |
3449 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); | |
3450 | } while (--wait_loop && (rxdctl & IXGBE_RXDCTL_ENABLE)); | |
3451 | ||
3452 | if (!wait_loop) { | |
3453 | e_err(drv, "RXDCTL.ENABLE on Rx queue %d not cleared within " | |
3454 | "the polling period\n", reg_idx); | |
3455 | } | |
3456 | } | |
3457 | ||
84418e3b AD |
3458 | void ixgbe_configure_rx_ring(struct ixgbe_adapter *adapter, |
3459 | struct ixgbe_ring *ring) | |
acd37177 AD |
3460 | { |
3461 | struct ixgbe_hw *hw = &adapter->hw; | |
3462 | u64 rdba = ring->dma; | |
9e10e045 | 3463 | u32 rxdctl; |
bf29ee6c | 3464 | u8 reg_idx = ring->reg_idx; |
acd37177 | 3465 | |
9e10e045 AD |
3466 | /* disable queue to avoid issues while updating state */ |
3467 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); | |
2d39d576 | 3468 | ixgbe_disable_rx_queue(adapter, ring); |
9e10e045 | 3469 | |
acd37177 AD |
3470 | IXGBE_WRITE_REG(hw, IXGBE_RDBAL(reg_idx), (rdba & DMA_BIT_MASK(32))); |
3471 | IXGBE_WRITE_REG(hw, IXGBE_RDBAH(reg_idx), (rdba >> 32)); | |
3472 | IXGBE_WRITE_REG(hw, IXGBE_RDLEN(reg_idx), | |
3473 | ring->count * sizeof(union ixgbe_adv_rx_desc)); | |
3474 | IXGBE_WRITE_REG(hw, IXGBE_RDH(reg_idx), 0); | |
3475 | IXGBE_WRITE_REG(hw, IXGBE_RDT(reg_idx), 0); | |
2a1a091c | 3476 | ring->tail = adapter->io_addr + IXGBE_RDT(reg_idx); |
9e10e045 AD |
3477 | |
3478 | ixgbe_configure_srrctl(adapter, ring); | |
3479 | ixgbe_configure_rscctl(adapter, ring); | |
3480 | ||
3481 | if (hw->mac.type == ixgbe_mac_82598EB) { | |
3482 | /* | |
3483 | * enable cache line friendly hardware writes: | |
3484 | * PTHRESH=32 descriptors (half the internal cache), | |
3485 | * this also removes ugly rx_no_buffer_count increment | |
3486 | * HTHRESH=4 descriptors (to minimize latency on fetch) | |
3487 | * WTHRESH=8 burst writeback up to two cache lines | |
3488 | */ | |
3489 | rxdctl &= ~0x3FFFFF; | |
3490 | rxdctl |= 0x080420; | |
3491 | } | |
3492 | ||
3493 | /* enable receive descriptor ring */ | |
3494 | rxdctl |= IXGBE_RXDCTL_ENABLE; | |
3495 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(reg_idx), rxdctl); | |
3496 | ||
3497 | ixgbe_rx_desc_queue_enable(adapter, ring); | |
7d4987de | 3498 | ixgbe_alloc_rx_buffers(ring, ixgbe_desc_unused(ring)); |
acd37177 AD |
3499 | } |
3500 | ||
48654521 AD |
3501 | static void ixgbe_setup_psrtype(struct ixgbe_adapter *adapter) |
3502 | { | |
3503 | struct ixgbe_hw *hw = &adapter->hw; | |
fbe7ca7f | 3504 | int rss_i = adapter->ring_feature[RING_F_RSS].indices; |
2a47fa45 | 3505 | u16 pool; |
48654521 AD |
3506 | |
3507 | /* PSRTYPE must be initialized in non 82598 adapters */ | |
3508 | u32 psrtype = IXGBE_PSRTYPE_TCPHDR | | |
e8e9f696 JP |
3509 | IXGBE_PSRTYPE_UDPHDR | |
3510 | IXGBE_PSRTYPE_IPV4HDR | | |
48654521 | 3511 | IXGBE_PSRTYPE_L2HDR | |
e8e9f696 | 3512 | IXGBE_PSRTYPE_IPV6HDR; |
48654521 AD |
3513 | |
3514 | if (hw->mac.type == ixgbe_mac_82598EB) | |
3515 | return; | |
3516 | ||
fbe7ca7f AD |
3517 | if (rss_i > 3) |
3518 | psrtype |= 2 << 29; | |
3519 | else if (rss_i > 1) | |
3520 | psrtype |= 1 << 29; | |
48654521 | 3521 | |
2a47fa45 JF |
3522 | for_each_set_bit(pool, &adapter->fwd_bitmask, 32) |
3523 | IXGBE_WRITE_REG(hw, IXGBE_PSRTYPE(VMDQ_P(pool)), psrtype); | |
48654521 AD |
3524 | } |
3525 | ||
f5b4a52e AD |
3526 | static void ixgbe_configure_virtualization(struct ixgbe_adapter *adapter) |
3527 | { | |
3528 | struct ixgbe_hw *hw = &adapter->hw; | |
f5b4a52e | 3529 | u32 reg_offset, vf_shift; |
435b19f6 | 3530 | u32 gcr_ext, vmdctl; |
de4c7f65 | 3531 | int i; |
f5b4a52e AD |
3532 | |
3533 | if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) | |
3534 | return; | |
3535 | ||
3536 | vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL); | |
435b19f6 AD |
3537 | vmdctl |= IXGBE_VMD_CTL_VMDQ_EN; |
3538 | vmdctl &= ~IXGBE_VT_CTL_POOL_MASK; | |
1d9c0bfd | 3539 | vmdctl |= VMDQ_P(0) << IXGBE_VT_CTL_POOL_SHIFT; |
435b19f6 AD |
3540 | vmdctl |= IXGBE_VT_CTL_REPLEN; |
3541 | IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl); | |
f5b4a52e | 3542 | |
1d9c0bfd AD |
3543 | vf_shift = VMDQ_P(0) % 32; |
3544 | reg_offset = (VMDQ_P(0) >= 32) ? 1 : 0; | |
f5b4a52e AD |
3545 | |
3546 | /* Enable only the PF's pool for Tx/Rx */ | |
435b19f6 AD |
3547 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), (~0) << vf_shift); |
3548 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset ^ 1), reg_offset - 1); | |
3549 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), (~0) << vf_shift); | |
3550 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset ^ 1), reg_offset - 1); | |
9b735984 GR |
3551 | if (adapter->flags2 & IXGBE_FLAG2_BRIDGE_MODE_VEB) |
3552 | IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN); | |
f5b4a52e AD |
3553 | |
3554 | /* Map PF MAC address in RAR Entry 0 to first pool following VFs */ | |
1d9c0bfd | 3555 | hw->mac.ops.set_vmdq(hw, 0, VMDQ_P(0)); |
f5b4a52e AD |
3556 | |
3557 | /* | |
3558 | * Set up VF register offsets for selected VT Mode, | |
3559 | * i.e. 32 or 64 VFs for SR-IOV | |
3560 | */ | |
73079ea0 AD |
3561 | switch (adapter->ring_feature[RING_F_VMDQ].mask) { |
3562 | case IXGBE_82599_VMDQ_8Q_MASK: | |
3563 | gcr_ext = IXGBE_GCR_EXT_VT_MODE_16; | |
3564 | break; | |
3565 | case IXGBE_82599_VMDQ_4Q_MASK: | |
3566 | gcr_ext = IXGBE_GCR_EXT_VT_MODE_32; | |
3567 | break; | |
3568 | default: | |
3569 | gcr_ext = IXGBE_GCR_EXT_VT_MODE_64; | |
3570 | break; | |
3571 | } | |
3572 | ||
f5b4a52e AD |
3573 | IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr_ext); |
3574 | ||
435b19f6 | 3575 | |
a985b6c3 | 3576 | /* Enable MAC Anti-Spoofing */ |
435b19f6 | 3577 | hw->mac.ops.set_mac_anti_spoofing(hw, (adapter->num_vfs != 0), |
a985b6c3 | 3578 | adapter->num_vfs); |
de4c7f65 GR |
3579 | /* For VFs that have spoof checking turned off */ |
3580 | for (i = 0; i < adapter->num_vfs; i++) { | |
3581 | if (!adapter->vfinfo[i].spoofchk_enabled) | |
3582 | ixgbe_ndo_set_vf_spoofchk(adapter->netdev, i, false); | |
3583 | } | |
f5b4a52e AD |
3584 | } |
3585 | ||
477de6ed | 3586 | static void ixgbe_set_rx_buffer_len(struct ixgbe_adapter *adapter) |
9a799d71 | 3587 | { |
9a799d71 AK |
3588 | struct ixgbe_hw *hw = &adapter->hw; |
3589 | struct net_device *netdev = adapter->netdev; | |
3590 | int max_frame = netdev->mtu + ETH_HLEN + ETH_FCS_LEN; | |
477de6ed AD |
3591 | struct ixgbe_ring *rx_ring; |
3592 | int i; | |
3593 | u32 mhadd, hlreg0; | |
48654521 | 3594 | |
63f39bd1 | 3595 | #ifdef IXGBE_FCOE |
477de6ed AD |
3596 | /* adjust max frame to be able to do baby jumbo for FCoE */ |
3597 | if ((adapter->flags & IXGBE_FLAG_FCOE_ENABLED) && | |
3598 | (max_frame < IXGBE_FCOE_JUMBO_FRAME_SIZE)) | |
3599 | max_frame = IXGBE_FCOE_JUMBO_FRAME_SIZE; | |
9a799d71 | 3600 | |
477de6ed | 3601 | #endif /* IXGBE_FCOE */ |
872844dd AD |
3602 | |
3603 | /* adjust max frame to be at least the size of a standard frame */ | |
3604 | if (max_frame < (ETH_FRAME_LEN + ETH_FCS_LEN)) | |
3605 | max_frame = (ETH_FRAME_LEN + ETH_FCS_LEN); | |
3606 | ||
477de6ed AD |
3607 | mhadd = IXGBE_READ_REG(hw, IXGBE_MHADD); |
3608 | if (max_frame != (mhadd >> IXGBE_MHADD_MFS_SHIFT)) { | |
3609 | mhadd &= ~IXGBE_MHADD_MFS_MASK; | |
3610 | mhadd |= max_frame << IXGBE_MHADD_MFS_SHIFT; | |
3611 | ||
3612 | IXGBE_WRITE_REG(hw, IXGBE_MHADD, mhadd); | |
3613 | } | |
3614 | ||
3615 | hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0); | |
3616 | /* set jumbo enable since MHADD.MFS is keeping size locked at max_frame */ | |
3617 | hlreg0 |= IXGBE_HLREG0_JUMBOEN; | |
3618 | IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0); | |
9a799d71 | 3619 | |
0cefafad JB |
3620 | /* |
3621 | * Setup the HW Rx Head and Tail Descriptor Pointers and | |
3622 | * the Base and Length of the Rx Descriptor Ring | |
3623 | */ | |
9a799d71 | 3624 | for (i = 0; i < adapter->num_rx_queues; i++) { |
4a0b9ca0 | 3625 | rx_ring = adapter->rx_ring[i]; |
7d637bcc AD |
3626 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) |
3627 | set_ring_rsc_enabled(rx_ring); | |
1b3ff02e | 3628 | else |
7d637bcc | 3629 | clear_ring_rsc_enabled(rx_ring); |
477de6ed | 3630 | } |
477de6ed AD |
3631 | } |
3632 | ||
7367096a AD |
3633 | static void ixgbe_setup_rdrxctl(struct ixgbe_adapter *adapter) |
3634 | { | |
3635 | struct ixgbe_hw *hw = &adapter->hw; | |
3636 | u32 rdrxctl = IXGBE_READ_REG(hw, IXGBE_RDRXCTL); | |
3637 | ||
3638 | switch (hw->mac.type) { | |
3639 | case ixgbe_mac_82598EB: | |
3640 | /* | |
3641 | * For VMDq support of different descriptor types or | |
3642 | * buffer sizes through the use of multiple SRRCTL | |
3643 | * registers, RDRXCTL.MVMEN must be set to 1 | |
3644 | * | |
3645 | * also, the manual doesn't mention it clearly but DCA hints | |
3646 | * will only use queue 0's tags unless this bit is set. Side | |
3647 | * effects of setting this bit are only that SRRCTL must be | |
3648 | * fully programmed [0..15] | |
3649 | */ | |
3650 | rdrxctl |= IXGBE_RDRXCTL_MVMEN; | |
3651 | break; | |
3652 | case ixgbe_mac_82599EB: | |
b93a2226 | 3653 | case ixgbe_mac_X540: |
7367096a AD |
3654 | /* Disable RSC for ACK packets */ |
3655 | IXGBE_WRITE_REG(hw, IXGBE_RSCDBU, | |
3656 | (IXGBE_RSCDBU_RSCACKDIS | IXGBE_READ_REG(hw, IXGBE_RSCDBU))); | |
3657 | rdrxctl &= ~IXGBE_RDRXCTL_RSCFRSTSIZE; | |
3658 | /* hardware requires some bits to be set by default */ | |
3659 | rdrxctl |= (IXGBE_RDRXCTL_RSCACKC | IXGBE_RDRXCTL_FCOE_WRFIX); | |
3660 | rdrxctl |= IXGBE_RDRXCTL_CRCSTRIP; | |
3661 | break; | |
3662 | default: | |
3663 | /* We should do nothing since we don't know this hardware */ | |
3664 | return; | |
3665 | } | |
3666 | ||
3667 | IXGBE_WRITE_REG(hw, IXGBE_RDRXCTL, rdrxctl); | |
3668 | } | |
3669 | ||
477de6ed AD |
3670 | /** |
3671 | * ixgbe_configure_rx - Configure 8259x Receive Unit after Reset | |
3672 | * @adapter: board private structure | |
3673 | * | |
3674 | * Configure the Rx unit of the MAC after a reset. | |
3675 | **/ | |
3676 | static void ixgbe_configure_rx(struct ixgbe_adapter *adapter) | |
3677 | { | |
3678 | struct ixgbe_hw *hw = &adapter->hw; | |
477de6ed | 3679 | int i; |
6dcc28b9 | 3680 | u32 rxctrl, rfctl; |
477de6ed AD |
3681 | |
3682 | /* disable receives while setting up the descriptors */ | |
3683 | rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL); | |
3684 | IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl & ~IXGBE_RXCTRL_RXEN); | |
3685 | ||
3686 | ixgbe_setup_psrtype(adapter); | |
7367096a | 3687 | ixgbe_setup_rdrxctl(adapter); |
477de6ed | 3688 | |
6dcc28b9 JK |
3689 | /* RSC Setup */ |
3690 | rfctl = IXGBE_READ_REG(hw, IXGBE_RFCTL); | |
3691 | rfctl &= ~IXGBE_RFCTL_RSC_DIS; | |
3692 | if (!(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED)) | |
3693 | rfctl |= IXGBE_RFCTL_RSC_DIS; | |
3694 | IXGBE_WRITE_REG(hw, IXGBE_RFCTL, rfctl); | |
3695 | ||
9e10e045 | 3696 | /* Program registers for the distribution of queues */ |
f5b4a52e | 3697 | ixgbe_setup_mrqc(adapter); |
f5b4a52e | 3698 | |
477de6ed AD |
3699 | /* set_rx_buffer_len must be called before ring initialization */ |
3700 | ixgbe_set_rx_buffer_len(adapter); | |
3701 | ||
3702 | /* | |
3703 | * Setup the HW Rx Head and Tail Descriptor Pointers and | |
3704 | * the Base and Length of the Rx Descriptor Ring | |
3705 | */ | |
9e10e045 AD |
3706 | for (i = 0; i < adapter->num_rx_queues; i++) |
3707 | ixgbe_configure_rx_ring(adapter, adapter->rx_ring[i]); | |
177db6ff | 3708 | |
9e10e045 AD |
3709 | /* disable drop enable for 82598 parts */ |
3710 | if (hw->mac.type == ixgbe_mac_82598EB) | |
3711 | rxctrl |= IXGBE_RXCTRL_DMBYPS; | |
3712 | ||
3713 | /* enable all receives */ | |
3714 | rxctrl |= IXGBE_RXCTRL_RXEN; | |
3715 | hw->mac.ops.enable_rx_dma(hw, rxctrl); | |
9a799d71 AK |
3716 | } |
3717 | ||
80d5c368 PM |
3718 | static int ixgbe_vlan_rx_add_vid(struct net_device *netdev, |
3719 | __be16 proto, u16 vid) | |
068c89b0 DS |
3720 | { |
3721 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
3722 | struct ixgbe_hw *hw = &adapter->hw; | |
3723 | ||
3724 | /* add VID to filter table */ | |
1d9c0bfd | 3725 | hw->mac.ops.set_vfta(&adapter->hw, vid, VMDQ_P(0), true); |
f62bbb5e | 3726 | set_bit(vid, adapter->active_vlans); |
8e586137 JP |
3727 | |
3728 | return 0; | |
068c89b0 DS |
3729 | } |
3730 | ||
80d5c368 PM |
3731 | static int ixgbe_vlan_rx_kill_vid(struct net_device *netdev, |
3732 | __be16 proto, u16 vid) | |
068c89b0 DS |
3733 | { |
3734 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
3735 | struct ixgbe_hw *hw = &adapter->hw; | |
3736 | ||
068c89b0 | 3737 | /* remove VID from filter table */ |
1d9c0bfd | 3738 | hw->mac.ops.set_vfta(&adapter->hw, vid, VMDQ_P(0), false); |
f62bbb5e | 3739 | clear_bit(vid, adapter->active_vlans); |
8e586137 JP |
3740 | |
3741 | return 0; | |
068c89b0 DS |
3742 | } |
3743 | ||
5f6c0181 JB |
3744 | /** |
3745 | * ixgbe_vlan_filter_disable - helper to disable hw vlan filtering | |
3746 | * @adapter: driver data | |
3747 | */ | |
3748 | static void ixgbe_vlan_filter_disable(struct ixgbe_adapter *adapter) | |
3749 | { | |
3750 | struct ixgbe_hw *hw = &adapter->hw; | |
f62bbb5e JG |
3751 | u32 vlnctrl; |
3752 | ||
3753 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); | |
3754 | vlnctrl &= ~(IXGBE_VLNCTRL_VFE | IXGBE_VLNCTRL_CFIEN); | |
3755 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); | |
3756 | } | |
3757 | ||
3758 | /** | |
3759 | * ixgbe_vlan_filter_enable - helper to enable hw vlan filtering | |
3760 | * @adapter: driver data | |
3761 | */ | |
3762 | static void ixgbe_vlan_filter_enable(struct ixgbe_adapter *adapter) | |
3763 | { | |
3764 | struct ixgbe_hw *hw = &adapter->hw; | |
3765 | u32 vlnctrl; | |
3766 | ||
3767 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); | |
3768 | vlnctrl |= IXGBE_VLNCTRL_VFE; | |
3769 | vlnctrl &= ~IXGBE_VLNCTRL_CFIEN; | |
3770 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); | |
3771 | } | |
3772 | ||
3773 | /** | |
3774 | * ixgbe_vlan_strip_disable - helper to disable hw vlan stripping | |
3775 | * @adapter: driver data | |
3776 | */ | |
3777 | static void ixgbe_vlan_strip_disable(struct ixgbe_adapter *adapter) | |
3778 | { | |
3779 | struct ixgbe_hw *hw = &adapter->hw; | |
3780 | u32 vlnctrl; | |
5f6c0181 JB |
3781 | int i, j; |
3782 | ||
3783 | switch (hw->mac.type) { | |
3784 | case ixgbe_mac_82598EB: | |
f62bbb5e JG |
3785 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); |
3786 | vlnctrl &= ~IXGBE_VLNCTRL_VME; | |
5f6c0181 JB |
3787 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); |
3788 | break; | |
3789 | case ixgbe_mac_82599EB: | |
b93a2226 | 3790 | case ixgbe_mac_X540: |
5f6c0181 | 3791 | for (i = 0; i < adapter->num_rx_queues; i++) { |
2a47fa45 JF |
3792 | struct ixgbe_ring *ring = adapter->rx_ring[i]; |
3793 | ||
3794 | if (ring->l2_accel_priv) | |
3795 | continue; | |
3796 | j = ring->reg_idx; | |
5f6c0181 JB |
3797 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(j)); |
3798 | vlnctrl &= ~IXGBE_RXDCTL_VME; | |
3799 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(j), vlnctrl); | |
3800 | } | |
3801 | break; | |
3802 | default: | |
3803 | break; | |
3804 | } | |
3805 | } | |
3806 | ||
3807 | /** | |
f62bbb5e | 3808 | * ixgbe_vlan_strip_enable - helper to enable hw vlan stripping |
5f6c0181 JB |
3809 | * @adapter: driver data |
3810 | */ | |
f62bbb5e | 3811 | static void ixgbe_vlan_strip_enable(struct ixgbe_adapter *adapter) |
5f6c0181 JB |
3812 | { |
3813 | struct ixgbe_hw *hw = &adapter->hw; | |
f62bbb5e | 3814 | u32 vlnctrl; |
5f6c0181 JB |
3815 | int i, j; |
3816 | ||
3817 | switch (hw->mac.type) { | |
3818 | case ixgbe_mac_82598EB: | |
f62bbb5e JG |
3819 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); |
3820 | vlnctrl |= IXGBE_VLNCTRL_VME; | |
5f6c0181 JB |
3821 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); |
3822 | break; | |
3823 | case ixgbe_mac_82599EB: | |
b93a2226 | 3824 | case ixgbe_mac_X540: |
5f6c0181 | 3825 | for (i = 0; i < adapter->num_rx_queues; i++) { |
2a47fa45 JF |
3826 | struct ixgbe_ring *ring = adapter->rx_ring[i]; |
3827 | ||
3828 | if (ring->l2_accel_priv) | |
3829 | continue; | |
3830 | j = ring->reg_idx; | |
5f6c0181 JB |
3831 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(j)); |
3832 | vlnctrl |= IXGBE_RXDCTL_VME; | |
3833 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(j), vlnctrl); | |
3834 | } | |
3835 | break; | |
3836 | default: | |
3837 | break; | |
3838 | } | |
3839 | } | |
3840 | ||
9a799d71 AK |
3841 | static void ixgbe_restore_vlan(struct ixgbe_adapter *adapter) |
3842 | { | |
f62bbb5e | 3843 | u16 vid; |
9a799d71 | 3844 | |
80d5c368 | 3845 | ixgbe_vlan_rx_add_vid(adapter->netdev, htons(ETH_P_8021Q), 0); |
f62bbb5e JG |
3846 | |
3847 | for_each_set_bit(vid, adapter->active_vlans, VLAN_N_VID) | |
80d5c368 | 3848 | ixgbe_vlan_rx_add_vid(adapter->netdev, htons(ETH_P_8021Q), vid); |
9a799d71 AK |
3849 | } |
3850 | ||
2850062a AD |
3851 | /** |
3852 | * ixgbe_write_uc_addr_list - write unicast addresses to RAR table | |
3853 | * @netdev: network interface device structure | |
3854 | * | |
3855 | * Writes unicast address list to the RAR table. | |
3856 | * Returns: -ENOMEM on failure/insufficient address space | |
3857 | * 0 on no addresses written | |
3858 | * X on writing X addresses to the RAR table | |
3859 | **/ | |
3860 | static int ixgbe_write_uc_addr_list(struct net_device *netdev) | |
3861 | { | |
3862 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
3863 | struct ixgbe_hw *hw = &adapter->hw; | |
95447461 | 3864 | unsigned int rar_entries = hw->mac.num_rar_entries - 1; |
2850062a AD |
3865 | int count = 0; |
3866 | ||
2a47fa45 | 3867 | /* In SR-IOV/VMDQ modes significantly less RAR entries are available */ |
95447461 JF |
3868 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) |
3869 | rar_entries = IXGBE_MAX_PF_MACVLANS - 1; | |
3870 | ||
2850062a AD |
3871 | /* return ENOMEM indicating insufficient memory for addresses */ |
3872 | if (netdev_uc_count(netdev) > rar_entries) | |
3873 | return -ENOMEM; | |
3874 | ||
95447461 | 3875 | if (!netdev_uc_empty(netdev)) { |
2850062a AD |
3876 | struct netdev_hw_addr *ha; |
3877 | /* return error if we do not support writing to RAR table */ | |
3878 | if (!hw->mac.ops.set_rar) | |
3879 | return -ENOMEM; | |
3880 | ||
3881 | netdev_for_each_uc_addr(ha, netdev) { | |
3882 | if (!rar_entries) | |
3883 | break; | |
3884 | hw->mac.ops.set_rar(hw, rar_entries--, ha->addr, | |
1d9c0bfd | 3885 | VMDQ_P(0), IXGBE_RAH_AV); |
2850062a AD |
3886 | count++; |
3887 | } | |
3888 | } | |
3889 | /* write the addresses in reverse order to avoid write combining */ | |
3890 | for (; rar_entries > 0 ; rar_entries--) | |
3891 | hw->mac.ops.clear_rar(hw, rar_entries); | |
3892 | ||
3893 | return count; | |
3894 | } | |
3895 | ||
9a799d71 | 3896 | /** |
2c5645cf | 3897 | * ixgbe_set_rx_mode - Unicast, Multicast and Promiscuous mode set |
9a799d71 AK |
3898 | * @netdev: network interface device structure |
3899 | * | |
2c5645cf CL |
3900 | * The set_rx_method entry point is called whenever the unicast/multicast |
3901 | * address list or the network interface flags are updated. This routine is | |
3902 | * responsible for configuring the hardware for proper unicast, multicast and | |
3903 | * promiscuous mode. | |
9a799d71 | 3904 | **/ |
7f870475 | 3905 | void ixgbe_set_rx_mode(struct net_device *netdev) |
9a799d71 AK |
3906 | { |
3907 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
3908 | struct ixgbe_hw *hw = &adapter->hw; | |
2850062a AD |
3909 | u32 fctrl, vmolr = IXGBE_VMOLR_BAM | IXGBE_VMOLR_AUPE; |
3910 | int count; | |
9a799d71 AK |
3911 | |
3912 | /* Check for Promiscuous and All Multicast modes */ | |
3913 | ||
3914 | fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL); | |
3915 | ||
f5dc442b | 3916 | /* set all bits that we expect to always be set */ |
3f2d1c0f | 3917 | fctrl &= ~IXGBE_FCTRL_SBP; /* disable store-bad-packets */ |
f5dc442b AD |
3918 | fctrl |= IXGBE_FCTRL_BAM; |
3919 | fctrl |= IXGBE_FCTRL_DPF; /* discard pause frames when FC enabled */ | |
3920 | fctrl |= IXGBE_FCTRL_PMCF; | |
3921 | ||
2850062a AD |
3922 | /* clear the bits we are changing the status of */ |
3923 | fctrl &= ~(IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE); | |
3924 | ||
9a799d71 | 3925 | if (netdev->flags & IFF_PROMISC) { |
e433ea1f | 3926 | hw->addr_ctrl.user_set_promisc = true; |
9a799d71 | 3927 | fctrl |= (IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE); |
2850062a | 3928 | vmolr |= (IXGBE_VMOLR_ROPE | IXGBE_VMOLR_MPE); |
670224f1 GR |
3929 | /* Only disable hardware filter vlans in promiscuous mode |
3930 | * if SR-IOV and VMDQ are disabled - otherwise ensure | |
3931 | * that hardware VLAN filters remain enabled. | |
3932 | */ | |
3933 | if (!(adapter->flags & (IXGBE_FLAG_VMDQ_ENABLED | | |
3934 | IXGBE_FLAG_SRIOV_ENABLED))) | |
3935 | ixgbe_vlan_filter_disable(adapter); | |
3936 | else | |
3937 | ixgbe_vlan_filter_enable(adapter); | |
9a799d71 | 3938 | } else { |
746b9f02 PM |
3939 | if (netdev->flags & IFF_ALLMULTI) { |
3940 | fctrl |= IXGBE_FCTRL_MPE; | |
2850062a | 3941 | vmolr |= IXGBE_VMOLR_MPE; |
746b9f02 | 3942 | } |
5f6c0181 | 3943 | ixgbe_vlan_filter_enable(adapter); |
e433ea1f | 3944 | hw->addr_ctrl.user_set_promisc = false; |
9dcb373c JF |
3945 | } |
3946 | ||
3947 | /* | |
3948 | * Write addresses to available RAR registers, if there is not | |
3949 | * sufficient space to store all the addresses then enable | |
3950 | * unicast promiscuous mode | |
3951 | */ | |
3952 | count = ixgbe_write_uc_addr_list(netdev); | |
3953 | if (count < 0) { | |
3954 | fctrl |= IXGBE_FCTRL_UPE; | |
3955 | vmolr |= IXGBE_VMOLR_ROPE; | |
9a799d71 AK |
3956 | } |
3957 | ||
cf78959c ET |
3958 | /* Write addresses to the MTA, if the attempt fails |
3959 | * then we should just turn on promiscuous mode so | |
3960 | * that we can at least receive multicast traffic | |
3961 | */ | |
3962 | hw->mac.ops.update_mc_addr_list(hw, netdev); | |
3963 | vmolr |= IXGBE_VMOLR_ROMPE; | |
3964 | ||
1d9c0bfd | 3965 | if (adapter->num_vfs) |
1cdd1ec8 | 3966 | ixgbe_restore_vf_multicasts(adapter); |
1d9c0bfd AD |
3967 | |
3968 | if (hw->mac.type != ixgbe_mac_82598EB) { | |
3969 | vmolr |= IXGBE_READ_REG(hw, IXGBE_VMOLR(VMDQ_P(0))) & | |
2850062a AD |
3970 | ~(IXGBE_VMOLR_MPE | IXGBE_VMOLR_ROMPE | |
3971 | IXGBE_VMOLR_ROPE); | |
1d9c0bfd | 3972 | IXGBE_WRITE_REG(hw, IXGBE_VMOLR(VMDQ_P(0)), vmolr); |
2850062a AD |
3973 | } |
3974 | ||
3f2d1c0f BG |
3975 | /* This is useful for sniffing bad packets. */ |
3976 | if (adapter->netdev->features & NETIF_F_RXALL) { | |
3977 | /* UPE and MPE will be handled by normal PROMISC logic | |
3978 | * in e1000e_set_rx_mode */ | |
3979 | fctrl |= (IXGBE_FCTRL_SBP | /* Receive bad packets */ | |
3980 | IXGBE_FCTRL_BAM | /* RX All Bcast Pkts */ | |
3981 | IXGBE_FCTRL_PMCF); /* RX All MAC Ctrl Pkts */ | |
3982 | ||
3983 | fctrl &= ~(IXGBE_FCTRL_DPF); | |
3984 | /* NOTE: VLAN filtering is disabled by setting PROMISC */ | |
3985 | } | |
3986 | ||
2850062a | 3987 | IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl); |
f62bbb5e | 3988 | |
f646968f | 3989 | if (netdev->features & NETIF_F_HW_VLAN_CTAG_RX) |
f62bbb5e JG |
3990 | ixgbe_vlan_strip_enable(adapter); |
3991 | else | |
3992 | ixgbe_vlan_strip_disable(adapter); | |
9a799d71 AK |
3993 | } |
3994 | ||
021230d4 AV |
3995 | static void ixgbe_napi_enable_all(struct ixgbe_adapter *adapter) |
3996 | { | |
3997 | int q_idx; | |
021230d4 | 3998 | |
5a85e737 ET |
3999 | for (q_idx = 0; q_idx < adapter->num_q_vectors; q_idx++) { |
4000 | ixgbe_qv_init_lock(adapter->q_vector[q_idx]); | |
49c7ffbe | 4001 | napi_enable(&adapter->q_vector[q_idx]->napi); |
5a85e737 | 4002 | } |
021230d4 AV |
4003 | } |
4004 | ||
4005 | static void ixgbe_napi_disable_all(struct ixgbe_adapter *adapter) | |
4006 | { | |
4007 | int q_idx; | |
021230d4 | 4008 | |
5a85e737 | 4009 | for (q_idx = 0; q_idx < adapter->num_q_vectors; q_idx++) { |
49c7ffbe | 4010 | napi_disable(&adapter->q_vector[q_idx]->napi); |
27d9ce4f | 4011 | while (!ixgbe_qv_disable(adapter->q_vector[q_idx])) { |
5a85e737 | 4012 | pr_info("QV %d locked\n", q_idx); |
27d9ce4f | 4013 | usleep_range(1000, 20000); |
5a85e737 ET |
4014 | } |
4015 | } | |
021230d4 AV |
4016 | } |
4017 | ||
7a6b6f51 | 4018 | #ifdef CONFIG_IXGBE_DCB |
49ce9c2c | 4019 | /** |
2f90b865 AD |
4020 | * ixgbe_configure_dcb - Configure DCB hardware |
4021 | * @adapter: ixgbe adapter struct | |
4022 | * | |
4023 | * This is called by the driver on open to configure the DCB hardware. | |
4024 | * This is also called by the gennetlink interface when reconfiguring | |
4025 | * the DCB state. | |
4026 | */ | |
4027 | static void ixgbe_configure_dcb(struct ixgbe_adapter *adapter) | |
4028 | { | |
4029 | struct ixgbe_hw *hw = &adapter->hw; | |
9806307a | 4030 | int max_frame = adapter->netdev->mtu + ETH_HLEN + ETH_FCS_LEN; |
2f90b865 | 4031 | |
67ebd791 AD |
4032 | if (!(adapter->flags & IXGBE_FLAG_DCB_ENABLED)) { |
4033 | if (hw->mac.type == ixgbe_mac_82598EB) | |
4034 | netif_set_gso_max_size(adapter->netdev, 65536); | |
4035 | return; | |
4036 | } | |
4037 | ||
4038 | if (hw->mac.type == ixgbe_mac_82598EB) | |
4039 | netif_set_gso_max_size(adapter->netdev, 32768); | |
4040 | ||
971060b1 | 4041 | #ifdef IXGBE_FCOE |
b120818e JF |
4042 | if (adapter->netdev->features & NETIF_F_FCOE_MTU) |
4043 | max_frame = max(max_frame, IXGBE_FCOE_JUMBO_FRAME_SIZE); | |
c27931da | 4044 | #endif |
b120818e JF |
4045 | |
4046 | /* reconfigure the hardware */ | |
4047 | if (adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE) { | |
c27931da JF |
4048 | ixgbe_dcb_calculate_tc_credits(hw, &adapter->dcb_cfg, max_frame, |
4049 | DCB_TX_CONFIG); | |
4050 | ixgbe_dcb_calculate_tc_credits(hw, &adapter->dcb_cfg, max_frame, | |
4051 | DCB_RX_CONFIG); | |
4052 | ixgbe_dcb_hw_config(hw, &adapter->dcb_cfg); | |
b120818e JF |
4053 | } else if (adapter->ixgbe_ieee_ets && adapter->ixgbe_ieee_pfc) { |
4054 | ixgbe_dcb_hw_ets(&adapter->hw, | |
4055 | adapter->ixgbe_ieee_ets, | |
4056 | max_frame); | |
4057 | ixgbe_dcb_hw_pfc_config(&adapter->hw, | |
4058 | adapter->ixgbe_ieee_pfc->pfc_en, | |
4059 | adapter->ixgbe_ieee_ets->prio_tc); | |
c27931da | 4060 | } |
8187cd48 JF |
4061 | |
4062 | /* Enable RSS Hash per TC */ | |
4063 | if (hw->mac.type != ixgbe_mac_82598EB) { | |
4ae63730 AD |
4064 | u32 msb = 0; |
4065 | u16 rss_i = adapter->ring_feature[RING_F_RSS].indices - 1; | |
8187cd48 | 4066 | |
d411a936 AD |
4067 | while (rss_i) { |
4068 | msb++; | |
4069 | rss_i >>= 1; | |
4070 | } | |
8187cd48 | 4071 | |
4ae63730 AD |
4072 | /* write msb to all 8 TCs in one write */ |
4073 | IXGBE_WRITE_REG(hw, IXGBE_RQTC, msb * 0x11111111); | |
8187cd48 | 4074 | } |
2f90b865 | 4075 | } |
9da712d2 JF |
4076 | #endif |
4077 | ||
4078 | /* Additional bittime to account for IXGBE framing */ | |
4079 | #define IXGBE_ETH_FRAMING 20 | |
4080 | ||
49ce9c2c | 4081 | /** |
9da712d2 JF |
4082 | * ixgbe_hpbthresh - calculate high water mark for flow control |
4083 | * | |
4084 | * @adapter: board private structure to calculate for | |
49ce9c2c | 4085 | * @pb: packet buffer to calculate |
9da712d2 JF |
4086 | */ |
4087 | static int ixgbe_hpbthresh(struct ixgbe_adapter *adapter, int pb) | |
4088 | { | |
4089 | struct ixgbe_hw *hw = &adapter->hw; | |
4090 | struct net_device *dev = adapter->netdev; | |
4091 | int link, tc, kb, marker; | |
4092 | u32 dv_id, rx_pba; | |
4093 | ||
4094 | /* Calculate max LAN frame size */ | |
4095 | tc = link = dev->mtu + ETH_HLEN + ETH_FCS_LEN + IXGBE_ETH_FRAMING; | |
4096 | ||
4097 | #ifdef IXGBE_FCOE | |
4098 | /* FCoE traffic class uses FCOE jumbo frames */ | |
800bd607 AD |
4099 | if ((dev->features & NETIF_F_FCOE_MTU) && |
4100 | (tc < IXGBE_FCOE_JUMBO_FRAME_SIZE) && | |
4101 | (pb == ixgbe_fcoe_get_tc(adapter))) | |
4102 | tc = IXGBE_FCOE_JUMBO_FRAME_SIZE; | |
9da712d2 JF |
4103 | |
4104 | #endif | |
9da712d2 JF |
4105 | /* Calculate delay value for device */ |
4106 | switch (hw->mac.type) { | |
4107 | case ixgbe_mac_X540: | |
4108 | dv_id = IXGBE_DV_X540(link, tc); | |
4109 | break; | |
4110 | default: | |
4111 | dv_id = IXGBE_DV(link, tc); | |
4112 | break; | |
4113 | } | |
4114 | ||
4115 | /* Loopback switch introduces additional latency */ | |
4116 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
4117 | dv_id += IXGBE_B2BT(tc); | |
4118 | ||
4119 | /* Delay value is calculated in bit times convert to KB */ | |
4120 | kb = IXGBE_BT2KB(dv_id); | |
4121 | rx_pba = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(pb)) >> 10; | |
4122 | ||
4123 | marker = rx_pba - kb; | |
4124 | ||
4125 | /* It is possible that the packet buffer is not large enough | |
4126 | * to provide required headroom. In this case throw an error | |
4127 | * to user and a do the best we can. | |
4128 | */ | |
4129 | if (marker < 0) { | |
4130 | e_warn(drv, "Packet Buffer(%i) can not provide enough" | |
4131 | "headroom to support flow control." | |
4132 | "Decrease MTU or number of traffic classes\n", pb); | |
4133 | marker = tc + 1; | |
4134 | } | |
4135 | ||
4136 | return marker; | |
4137 | } | |
4138 | ||
49ce9c2c | 4139 | /** |
9da712d2 JF |
4140 | * ixgbe_lpbthresh - calculate low water mark for for flow control |
4141 | * | |
4142 | * @adapter: board private structure to calculate for | |
49ce9c2c | 4143 | * @pb: packet buffer to calculate |
9da712d2 JF |
4144 | */ |
4145 | static int ixgbe_lpbthresh(struct ixgbe_adapter *adapter) | |
4146 | { | |
4147 | struct ixgbe_hw *hw = &adapter->hw; | |
4148 | struct net_device *dev = adapter->netdev; | |
4149 | int tc; | |
4150 | u32 dv_id; | |
4151 | ||
4152 | /* Calculate max LAN frame size */ | |
4153 | tc = dev->mtu + ETH_HLEN + ETH_FCS_LEN; | |
4154 | ||
4155 | /* Calculate delay value for device */ | |
4156 | switch (hw->mac.type) { | |
4157 | case ixgbe_mac_X540: | |
4158 | dv_id = IXGBE_LOW_DV_X540(tc); | |
4159 | break; | |
4160 | default: | |
4161 | dv_id = IXGBE_LOW_DV(tc); | |
4162 | break; | |
4163 | } | |
4164 | ||
4165 | /* Delay value is calculated in bit times convert to KB */ | |
4166 | return IXGBE_BT2KB(dv_id); | |
4167 | } | |
4168 | ||
4169 | /* | |
4170 | * ixgbe_pbthresh_setup - calculate and setup high low water marks | |
4171 | */ | |
4172 | static void ixgbe_pbthresh_setup(struct ixgbe_adapter *adapter) | |
4173 | { | |
4174 | struct ixgbe_hw *hw = &adapter->hw; | |
4175 | int num_tc = netdev_get_num_tc(adapter->netdev); | |
4176 | int i; | |
4177 | ||
4178 | if (!num_tc) | |
4179 | num_tc = 1; | |
4180 | ||
4181 | hw->fc.low_water = ixgbe_lpbthresh(adapter); | |
4182 | ||
4183 | for (i = 0; i < num_tc; i++) { | |
4184 | hw->fc.high_water[i] = ixgbe_hpbthresh(adapter, i); | |
4185 | ||
4186 | /* Low water marks must not be larger than high water marks */ | |
4187 | if (hw->fc.low_water > hw->fc.high_water[i]) | |
4188 | hw->fc.low_water = 0; | |
4189 | } | |
4190 | } | |
4191 | ||
80605c65 JF |
4192 | static void ixgbe_configure_pb(struct ixgbe_adapter *adapter) |
4193 | { | |
80605c65 | 4194 | struct ixgbe_hw *hw = &adapter->hw; |
f7e1027f AD |
4195 | int hdrm; |
4196 | u8 tc = netdev_get_num_tc(adapter->netdev); | |
80605c65 JF |
4197 | |
4198 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE || | |
4199 | adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) | |
f7e1027f AD |
4200 | hdrm = 32 << adapter->fdir_pballoc; |
4201 | else | |
4202 | hdrm = 0; | |
80605c65 | 4203 | |
f7e1027f | 4204 | hw->mac.ops.set_rxpba(hw, tc, hdrm, PBA_STRATEGY_EQUAL); |
9da712d2 | 4205 | ixgbe_pbthresh_setup(adapter); |
80605c65 JF |
4206 | } |
4207 | ||
e4911d57 AD |
4208 | static void ixgbe_fdir_filter_restore(struct ixgbe_adapter *adapter) |
4209 | { | |
4210 | struct ixgbe_hw *hw = &adapter->hw; | |
b67bfe0d | 4211 | struct hlist_node *node2; |
e4911d57 AD |
4212 | struct ixgbe_fdir_filter *filter; |
4213 | ||
4214 | spin_lock(&adapter->fdir_perfect_lock); | |
4215 | ||
4216 | if (!hlist_empty(&adapter->fdir_filter_list)) | |
4217 | ixgbe_fdir_set_input_mask_82599(hw, &adapter->fdir_mask); | |
4218 | ||
b67bfe0d | 4219 | hlist_for_each_entry_safe(filter, node2, |
e4911d57 AD |
4220 | &adapter->fdir_filter_list, fdir_node) { |
4221 | ixgbe_fdir_write_perfect_filter_82599(hw, | |
1f4d5183 AD |
4222 | &filter->filter, |
4223 | filter->sw_idx, | |
4224 | (filter->action == IXGBE_FDIR_DROP_QUEUE) ? | |
4225 | IXGBE_FDIR_DROP_QUEUE : | |
4226 | adapter->rx_ring[filter->action]->reg_idx); | |
e4911d57 AD |
4227 | } |
4228 | ||
4229 | spin_unlock(&adapter->fdir_perfect_lock); | |
4230 | } | |
4231 | ||
2a47fa45 JF |
4232 | static void ixgbe_macvlan_set_rx_mode(struct net_device *dev, unsigned int pool, |
4233 | struct ixgbe_adapter *adapter) | |
4234 | { | |
4235 | struct ixgbe_hw *hw = &adapter->hw; | |
4236 | u32 vmolr; | |
4237 | ||
4238 | /* No unicast promiscuous support for VMDQ devices. */ | |
4239 | vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(pool)); | |
4240 | vmolr |= (IXGBE_VMOLR_ROMPE | IXGBE_VMOLR_BAM | IXGBE_VMOLR_AUPE); | |
4241 | ||
4242 | /* clear the affected bit */ | |
4243 | vmolr &= ~IXGBE_VMOLR_MPE; | |
4244 | ||
4245 | if (dev->flags & IFF_ALLMULTI) { | |
4246 | vmolr |= IXGBE_VMOLR_MPE; | |
4247 | } else { | |
4248 | vmolr |= IXGBE_VMOLR_ROMPE; | |
4249 | hw->mac.ops.update_mc_addr_list(hw, dev); | |
4250 | } | |
4251 | ixgbe_write_uc_addr_list(adapter->netdev); | |
4252 | IXGBE_WRITE_REG(hw, IXGBE_VMOLR(pool), vmolr); | |
4253 | } | |
4254 | ||
4255 | static void ixgbe_add_mac_filter(struct ixgbe_adapter *adapter, | |
4256 | u8 *addr, u16 pool) | |
4257 | { | |
4258 | struct ixgbe_hw *hw = &adapter->hw; | |
4259 | unsigned int entry; | |
4260 | ||
4261 | entry = hw->mac.num_rar_entries - pool; | |
4262 | hw->mac.ops.set_rar(hw, entry, addr, VMDQ_P(pool), IXGBE_RAH_AV); | |
4263 | } | |
4264 | ||
4265 | static void ixgbe_fwd_psrtype(struct ixgbe_fwd_adapter *vadapter) | |
4266 | { | |
4267 | struct ixgbe_adapter *adapter = vadapter->real_adapter; | |
219354d4 | 4268 | int rss_i = adapter->num_rx_queues_per_pool; |
2a47fa45 JF |
4269 | struct ixgbe_hw *hw = &adapter->hw; |
4270 | u16 pool = vadapter->pool; | |
4271 | u32 psrtype = IXGBE_PSRTYPE_TCPHDR | | |
4272 | IXGBE_PSRTYPE_UDPHDR | | |
4273 | IXGBE_PSRTYPE_IPV4HDR | | |
4274 | IXGBE_PSRTYPE_L2HDR | | |
4275 | IXGBE_PSRTYPE_IPV6HDR; | |
4276 | ||
4277 | if (hw->mac.type == ixgbe_mac_82598EB) | |
4278 | return; | |
4279 | ||
4280 | if (rss_i > 3) | |
4281 | psrtype |= 2 << 29; | |
4282 | else if (rss_i > 1) | |
4283 | psrtype |= 1 << 29; | |
4284 | ||
4285 | IXGBE_WRITE_REG(hw, IXGBE_PSRTYPE(VMDQ_P(pool)), psrtype); | |
4286 | } | |
4287 | ||
4288 | /** | |
4289 | * ixgbe_clean_rx_ring - Free Rx Buffers per Queue | |
4290 | * @rx_ring: ring to free buffers from | |
4291 | **/ | |
4292 | static void ixgbe_clean_rx_ring(struct ixgbe_ring *rx_ring) | |
4293 | { | |
4294 | struct device *dev = rx_ring->dev; | |
4295 | unsigned long size; | |
4296 | u16 i; | |
4297 | ||
4298 | /* ring already cleared, nothing to do */ | |
4299 | if (!rx_ring->rx_buffer_info) | |
4300 | return; | |
4301 | ||
4302 | /* Free all the Rx ring sk_buffs */ | |
4303 | for (i = 0; i < rx_ring->count; i++) { | |
4304 | struct ixgbe_rx_buffer *rx_buffer; | |
4305 | ||
4306 | rx_buffer = &rx_ring->rx_buffer_info[i]; | |
4307 | if (rx_buffer->skb) { | |
4308 | struct sk_buff *skb = rx_buffer->skb; | |
4309 | if (IXGBE_CB(skb)->page_released) { | |
4310 | dma_unmap_page(dev, | |
4311 | IXGBE_CB(skb)->dma, | |
4312 | ixgbe_rx_bufsz(rx_ring), | |
4313 | DMA_FROM_DEVICE); | |
4314 | IXGBE_CB(skb)->page_released = false; | |
4315 | } | |
4316 | dev_kfree_skb(skb); | |
4317 | } | |
4318 | rx_buffer->skb = NULL; | |
4319 | if (rx_buffer->dma) | |
4320 | dma_unmap_page(dev, rx_buffer->dma, | |
4321 | ixgbe_rx_pg_size(rx_ring), | |
4322 | DMA_FROM_DEVICE); | |
4323 | rx_buffer->dma = 0; | |
4324 | if (rx_buffer->page) | |
4325 | __free_pages(rx_buffer->page, | |
4326 | ixgbe_rx_pg_order(rx_ring)); | |
4327 | rx_buffer->page = NULL; | |
4328 | } | |
4329 | ||
4330 | size = sizeof(struct ixgbe_rx_buffer) * rx_ring->count; | |
4331 | memset(rx_ring->rx_buffer_info, 0, size); | |
4332 | ||
4333 | /* Zero out the descriptor ring */ | |
4334 | memset(rx_ring->desc, 0, rx_ring->size); | |
4335 | ||
4336 | rx_ring->next_to_alloc = 0; | |
4337 | rx_ring->next_to_clean = 0; | |
4338 | rx_ring->next_to_use = 0; | |
4339 | } | |
4340 | ||
4341 | static void ixgbe_disable_fwd_ring(struct ixgbe_fwd_adapter *vadapter, | |
4342 | struct ixgbe_ring *rx_ring) | |
4343 | { | |
4344 | struct ixgbe_adapter *adapter = vadapter->real_adapter; | |
4345 | int index = rx_ring->queue_index + vadapter->rx_base_queue; | |
4346 | ||
4347 | /* shutdown specific queue receive and wait for dma to settle */ | |
4348 | ixgbe_disable_rx_queue(adapter, rx_ring); | |
4349 | usleep_range(10000, 20000); | |
4350 | ixgbe_irq_disable_queues(adapter, ((u64)1 << index)); | |
4351 | ixgbe_clean_rx_ring(rx_ring); | |
4352 | rx_ring->l2_accel_priv = NULL; | |
4353 | } | |
4354 | ||
ae72c8d0 JF |
4355 | static int ixgbe_fwd_ring_down(struct net_device *vdev, |
4356 | struct ixgbe_fwd_adapter *accel) | |
2a47fa45 JF |
4357 | { |
4358 | struct ixgbe_adapter *adapter = accel->real_adapter; | |
4359 | unsigned int rxbase = accel->rx_base_queue; | |
4360 | unsigned int txbase = accel->tx_base_queue; | |
4361 | int i; | |
4362 | ||
4363 | netif_tx_stop_all_queues(vdev); | |
4364 | ||
4365 | for (i = 0; i < adapter->num_rx_queues_per_pool; i++) { | |
4366 | ixgbe_disable_fwd_ring(accel, adapter->rx_ring[rxbase + i]); | |
4367 | adapter->rx_ring[rxbase + i]->netdev = adapter->netdev; | |
4368 | } | |
4369 | ||
4370 | for (i = 0; i < adapter->num_rx_queues_per_pool; i++) { | |
4371 | adapter->tx_ring[txbase + i]->l2_accel_priv = NULL; | |
4372 | adapter->tx_ring[txbase + i]->netdev = adapter->netdev; | |
4373 | } | |
4374 | ||
4375 | ||
4376 | return 0; | |
4377 | } | |
4378 | ||
4379 | static int ixgbe_fwd_ring_up(struct net_device *vdev, | |
4380 | struct ixgbe_fwd_adapter *accel) | |
4381 | { | |
4382 | struct ixgbe_adapter *adapter = accel->real_adapter; | |
4383 | unsigned int rxbase, txbase, queues; | |
4384 | int i, baseq, err = 0; | |
4385 | ||
4386 | if (!test_bit(accel->pool, &adapter->fwd_bitmask)) | |
4387 | return 0; | |
4388 | ||
4389 | baseq = accel->pool * adapter->num_rx_queues_per_pool; | |
4390 | netdev_dbg(vdev, "pool %i:%i queues %i:%i VSI bitmask %lx\n", | |
4391 | accel->pool, adapter->num_rx_pools, | |
4392 | baseq, baseq + adapter->num_rx_queues_per_pool, | |
4393 | adapter->fwd_bitmask); | |
4394 | ||
4395 | accel->netdev = vdev; | |
4396 | accel->rx_base_queue = rxbase = baseq; | |
4397 | accel->tx_base_queue = txbase = baseq; | |
4398 | ||
4399 | for (i = 0; i < adapter->num_rx_queues_per_pool; i++) | |
4400 | ixgbe_disable_fwd_ring(accel, adapter->rx_ring[rxbase + i]); | |
4401 | ||
4402 | for (i = 0; i < adapter->num_rx_queues_per_pool; i++) { | |
4403 | adapter->rx_ring[rxbase + i]->netdev = vdev; | |
4404 | adapter->rx_ring[rxbase + i]->l2_accel_priv = accel; | |
4405 | ixgbe_configure_rx_ring(adapter, adapter->rx_ring[rxbase + i]); | |
4406 | } | |
4407 | ||
4408 | for (i = 0; i < adapter->num_rx_queues_per_pool; i++) { | |
4409 | adapter->tx_ring[txbase + i]->netdev = vdev; | |
4410 | adapter->tx_ring[txbase + i]->l2_accel_priv = accel; | |
4411 | } | |
4412 | ||
4413 | queues = min_t(unsigned int, | |
4414 | adapter->num_rx_queues_per_pool, vdev->num_tx_queues); | |
4415 | err = netif_set_real_num_tx_queues(vdev, queues); | |
4416 | if (err) | |
4417 | goto fwd_queue_err; | |
4418 | ||
2a47fa45 JF |
4419 | err = netif_set_real_num_rx_queues(vdev, queues); |
4420 | if (err) | |
4421 | goto fwd_queue_err; | |
4422 | ||
4423 | if (is_valid_ether_addr(vdev->dev_addr)) | |
4424 | ixgbe_add_mac_filter(adapter, vdev->dev_addr, accel->pool); | |
4425 | ||
4426 | ixgbe_fwd_psrtype(accel); | |
4427 | ixgbe_macvlan_set_rx_mode(vdev, accel->pool, adapter); | |
4428 | return err; | |
4429 | fwd_queue_err: | |
4430 | ixgbe_fwd_ring_down(vdev, accel); | |
4431 | return err; | |
4432 | } | |
4433 | ||
4434 | static void ixgbe_configure_dfwd(struct ixgbe_adapter *adapter) | |
4435 | { | |
4436 | struct net_device *upper; | |
4437 | struct list_head *iter; | |
4438 | int err; | |
4439 | ||
4440 | netdev_for_each_all_upper_dev_rcu(adapter->netdev, upper, iter) { | |
4441 | if (netif_is_macvlan(upper)) { | |
4442 | struct macvlan_dev *dfwd = netdev_priv(upper); | |
4443 | struct ixgbe_fwd_adapter *vadapter = dfwd->fwd_priv; | |
4444 | ||
4445 | if (dfwd->fwd_priv) { | |
4446 | err = ixgbe_fwd_ring_up(upper, vadapter); | |
4447 | if (err) | |
4448 | continue; | |
4449 | } | |
4450 | } | |
4451 | } | |
4452 | } | |
4453 | ||
9a799d71 AK |
4454 | static void ixgbe_configure(struct ixgbe_adapter *adapter) |
4455 | { | |
d2f5e7f3 AS |
4456 | struct ixgbe_hw *hw = &adapter->hw; |
4457 | ||
80605c65 | 4458 | ixgbe_configure_pb(adapter); |
7a6b6f51 | 4459 | #ifdef CONFIG_IXGBE_DCB |
67ebd791 | 4460 | ixgbe_configure_dcb(adapter); |
2f90b865 | 4461 | #endif |
b35d4d42 AD |
4462 | /* |
4463 | * We must restore virtualization before VLANs or else | |
4464 | * the VLVF registers will not be populated | |
4465 | */ | |
4466 | ixgbe_configure_virtualization(adapter); | |
9a799d71 | 4467 | |
4c1d7b4b | 4468 | ixgbe_set_rx_mode(adapter->netdev); |
f62bbb5e JG |
4469 | ixgbe_restore_vlan(adapter); |
4470 | ||
d2f5e7f3 AS |
4471 | switch (hw->mac.type) { |
4472 | case ixgbe_mac_82599EB: | |
4473 | case ixgbe_mac_X540: | |
4474 | hw->mac.ops.disable_rx_buff(hw); | |
4475 | break; | |
4476 | default: | |
4477 | break; | |
4478 | } | |
4479 | ||
c4cf55e5 | 4480 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { |
4c1d7b4b AD |
4481 | ixgbe_init_fdir_signature_82599(&adapter->hw, |
4482 | adapter->fdir_pballoc); | |
e4911d57 AD |
4483 | } else if (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) { |
4484 | ixgbe_init_fdir_perfect_82599(&adapter->hw, | |
4485 | adapter->fdir_pballoc); | |
4486 | ixgbe_fdir_filter_restore(adapter); | |
c4cf55e5 | 4487 | } |
4c1d7b4b | 4488 | |
d2f5e7f3 AS |
4489 | switch (hw->mac.type) { |
4490 | case ixgbe_mac_82599EB: | |
4491 | case ixgbe_mac_X540: | |
4492 | hw->mac.ops.enable_rx_buff(hw); | |
4493 | break; | |
4494 | default: | |
4495 | break; | |
4496 | } | |
4497 | ||
7c8ae65a AD |
4498 | #ifdef IXGBE_FCOE |
4499 | /* configure FCoE L2 filters, redirection table, and Rx control */ | |
4500 | ixgbe_configure_fcoe(adapter); | |
4501 | ||
4502 | #endif /* IXGBE_FCOE */ | |
9a799d71 AK |
4503 | ixgbe_configure_tx(adapter); |
4504 | ixgbe_configure_rx(adapter); | |
2a47fa45 | 4505 | ixgbe_configure_dfwd(adapter); |
9a799d71 AK |
4506 | } |
4507 | ||
e8e26350 PW |
4508 | static inline bool ixgbe_is_sfp(struct ixgbe_hw *hw) |
4509 | { | |
4510 | switch (hw->phy.type) { | |
4511 | case ixgbe_phy_sfp_avago: | |
4512 | case ixgbe_phy_sfp_ftl: | |
4513 | case ixgbe_phy_sfp_intel: | |
4514 | case ixgbe_phy_sfp_unknown: | |
ea0a04df DS |
4515 | case ixgbe_phy_sfp_passive_tyco: |
4516 | case ixgbe_phy_sfp_passive_unknown: | |
4517 | case ixgbe_phy_sfp_active_unknown: | |
4518 | case ixgbe_phy_sfp_ftl_active: | |
987e1d56 ET |
4519 | case ixgbe_phy_qsfp_passive_unknown: |
4520 | case ixgbe_phy_qsfp_active_unknown: | |
4521 | case ixgbe_phy_qsfp_intel: | |
4522 | case ixgbe_phy_qsfp_unknown: | |
e8e26350 | 4523 | return true; |
8917b447 AD |
4524 | case ixgbe_phy_nl: |
4525 | if (hw->mac.type == ixgbe_mac_82598EB) | |
4526 | return true; | |
e8e26350 PW |
4527 | default: |
4528 | return false; | |
4529 | } | |
4530 | } | |
4531 | ||
0ecc061d | 4532 | /** |
e8e26350 PW |
4533 | * ixgbe_sfp_link_config - set up SFP+ link |
4534 | * @adapter: pointer to private adapter struct | |
4535 | **/ | |
4536 | static void ixgbe_sfp_link_config(struct ixgbe_adapter *adapter) | |
4537 | { | |
7086400d | 4538 | /* |
52f33af8 | 4539 | * We are assuming the worst case scenario here, and that |
7086400d AD |
4540 | * is that an SFP was inserted/removed after the reset |
4541 | * but before SFP detection was enabled. As such the best | |
4542 | * solution is to just start searching as soon as we start | |
4543 | */ | |
4544 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) | |
4545 | adapter->flags2 |= IXGBE_FLAG2_SEARCH_FOR_SFP; | |
e8e26350 | 4546 | |
7086400d | 4547 | adapter->flags2 |= IXGBE_FLAG2_SFP_NEEDS_RESET; |
e8e26350 PW |
4548 | } |
4549 | ||
4550 | /** | |
4551 | * ixgbe_non_sfp_link_config - set up non-SFP+ link | |
0ecc061d PWJ |
4552 | * @hw: pointer to private hardware struct |
4553 | * | |
4554 | * Returns 0 on success, negative on failure | |
4555 | **/ | |
e8e26350 | 4556 | static int ixgbe_non_sfp_link_config(struct ixgbe_hw *hw) |
0ecc061d | 4557 | { |
3d292265 JH |
4558 | u32 speed; |
4559 | bool autoneg, link_up = false; | |
0ecc061d PWJ |
4560 | u32 ret = IXGBE_ERR_LINK_SETUP; |
4561 | ||
4562 | if (hw->mac.ops.check_link) | |
3d292265 | 4563 | ret = hw->mac.ops.check_link(hw, &speed, &link_up, false); |
0ecc061d PWJ |
4564 | |
4565 | if (ret) | |
4566 | goto link_cfg_out; | |
4567 | ||
3d292265 JH |
4568 | speed = hw->phy.autoneg_advertised; |
4569 | if ((!speed) && (hw->mac.ops.get_link_capabilities)) | |
4570 | ret = hw->mac.ops.get_link_capabilities(hw, &speed, | |
4571 | &autoneg); | |
0ecc061d PWJ |
4572 | if (ret) |
4573 | goto link_cfg_out; | |
4574 | ||
8620a103 | 4575 | if (hw->mac.ops.setup_link) |
fd0326f2 | 4576 | ret = hw->mac.ops.setup_link(hw, speed, link_up); |
0ecc061d PWJ |
4577 | link_cfg_out: |
4578 | return ret; | |
4579 | } | |
4580 | ||
a34bcfff | 4581 | static void ixgbe_setup_gpie(struct ixgbe_adapter *adapter) |
9a799d71 | 4582 | { |
9a799d71 | 4583 | struct ixgbe_hw *hw = &adapter->hw; |
a34bcfff | 4584 | u32 gpie = 0; |
9a799d71 | 4585 | |
9b471446 | 4586 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
a34bcfff AD |
4587 | gpie = IXGBE_GPIE_MSIX_MODE | IXGBE_GPIE_PBA_SUPPORT | |
4588 | IXGBE_GPIE_OCD; | |
4589 | gpie |= IXGBE_GPIE_EIAME; | |
9b471446 JB |
4590 | /* |
4591 | * use EIAM to auto-mask when MSI-X interrupt is asserted | |
4592 | * this saves a register write for every interrupt | |
4593 | */ | |
4594 | switch (hw->mac.type) { | |
4595 | case ixgbe_mac_82598EB: | |
4596 | IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE); | |
4597 | break; | |
9b471446 | 4598 | case ixgbe_mac_82599EB: |
b93a2226 DS |
4599 | case ixgbe_mac_X540: |
4600 | default: | |
9b471446 JB |
4601 | IXGBE_WRITE_REG(hw, IXGBE_EIAM_EX(0), 0xFFFFFFFF); |
4602 | IXGBE_WRITE_REG(hw, IXGBE_EIAM_EX(1), 0xFFFFFFFF); | |
4603 | break; | |
4604 | } | |
4605 | } else { | |
021230d4 AV |
4606 | /* legacy interrupts, use EIAM to auto-mask when reading EICR, |
4607 | * specifically only auto mask tx and rx interrupts */ | |
4608 | IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE); | |
4609 | } | |
9a799d71 | 4610 | |
a34bcfff AD |
4611 | /* XXX: to interrupt immediately for EICS writes, enable this */ |
4612 | /* gpie |= IXGBE_GPIE_EIMEN; */ | |
4613 | ||
4614 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { | |
4615 | gpie &= ~IXGBE_GPIE_VTMODE_MASK; | |
73079ea0 AD |
4616 | |
4617 | switch (adapter->ring_feature[RING_F_VMDQ].mask) { | |
4618 | case IXGBE_82599_VMDQ_8Q_MASK: | |
4619 | gpie |= IXGBE_GPIE_VTMODE_16; | |
4620 | break; | |
4621 | case IXGBE_82599_VMDQ_4Q_MASK: | |
4622 | gpie |= IXGBE_GPIE_VTMODE_32; | |
4623 | break; | |
4624 | default: | |
4625 | gpie |= IXGBE_GPIE_VTMODE_64; | |
4626 | break; | |
4627 | } | |
119fc60a MC |
4628 | } |
4629 | ||
5fdd31f9 | 4630 | /* Enable Thermal over heat sensor interrupt */ |
f3df98ec DS |
4631 | if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) { |
4632 | switch (adapter->hw.mac.type) { | |
4633 | case ixgbe_mac_82599EB: | |
4634 | gpie |= IXGBE_SDP0_GPIEN; | |
4635 | break; | |
4636 | case ixgbe_mac_X540: | |
4637 | gpie |= IXGBE_EIMS_TS; | |
4638 | break; | |
4639 | default: | |
4640 | break; | |
4641 | } | |
4642 | } | |
5fdd31f9 | 4643 | |
a34bcfff AD |
4644 | /* Enable fan failure interrupt */ |
4645 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) | |
0befdb3e | 4646 | gpie |= IXGBE_SDP1_GPIEN; |
0befdb3e | 4647 | |
2698b208 | 4648 | if (hw->mac.type == ixgbe_mac_82599EB) { |
e8e26350 PW |
4649 | gpie |= IXGBE_SDP1_GPIEN; |
4650 | gpie |= IXGBE_SDP2_GPIEN; | |
2698b208 | 4651 | } |
a34bcfff AD |
4652 | |
4653 | IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); | |
4654 | } | |
4655 | ||
c7ccde0f | 4656 | static void ixgbe_up_complete(struct ixgbe_adapter *adapter) |
a34bcfff AD |
4657 | { |
4658 | struct ixgbe_hw *hw = &adapter->hw; | |
a34bcfff | 4659 | int err; |
a34bcfff AD |
4660 | u32 ctrl_ext; |
4661 | ||
4662 | ixgbe_get_hw_control(adapter); | |
4663 | ixgbe_setup_gpie(adapter); | |
e8e26350 | 4664 | |
9a799d71 AK |
4665 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) |
4666 | ixgbe_configure_msix(adapter); | |
4667 | else | |
4668 | ixgbe_configure_msi_and_legacy(adapter); | |
4669 | ||
ec74a471 ET |
4670 | /* enable the optics for 82599 SFP+ fiber */ |
4671 | if (hw->mac.ops.enable_tx_laser) | |
61fac744 PW |
4672 | hw->mac.ops.enable_tx_laser(hw); |
4673 | ||
c3049c8f | 4674 | smp_mb__before_clear_bit(); |
9a799d71 | 4675 | clear_bit(__IXGBE_DOWN, &adapter->state); |
021230d4 AV |
4676 | ixgbe_napi_enable_all(adapter); |
4677 | ||
73c4b7cd AD |
4678 | if (ixgbe_is_sfp(hw)) { |
4679 | ixgbe_sfp_link_config(adapter); | |
4680 | } else { | |
4681 | err = ixgbe_non_sfp_link_config(hw); | |
4682 | if (err) | |
4683 | e_err(probe, "link_config FAILED %d\n", err); | |
4684 | } | |
4685 | ||
021230d4 AV |
4686 | /* clear any pending interrupts, may auto mask */ |
4687 | IXGBE_READ_REG(hw, IXGBE_EICR); | |
6af3b9eb | 4688 | ixgbe_irq_enable(adapter, true, true); |
9a799d71 | 4689 | |
bf069c97 DS |
4690 | /* |
4691 | * If this adapter has a fan, check to see if we had a failure | |
4692 | * before we enabled the interrupt. | |
4693 | */ | |
4694 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) { | |
4695 | u32 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); | |
4696 | if (esdp & IXGBE_ESDP_SDP1) | |
396e799c | 4697 | e_crit(drv, "Fan has stopped, replace the adapter\n"); |
bf069c97 DS |
4698 | } |
4699 | ||
9a799d71 AK |
4700 | /* bring the link up in the watchdog, this could race with our first |
4701 | * link up interrupt but shouldn't be a problem */ | |
cf8280ee JB |
4702 | adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; |
4703 | adapter->link_check_timeout = jiffies; | |
7086400d | 4704 | mod_timer(&adapter->service_timer, jiffies); |
c9205697 GR |
4705 | |
4706 | /* Set PF Reset Done bit so PF/VF Mail Ops can work */ | |
4707 | ctrl_ext = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT); | |
4708 | ctrl_ext |= IXGBE_CTRL_EXT_PFRSTD; | |
4709 | IXGBE_WRITE_REG(hw, IXGBE_CTRL_EXT, ctrl_ext); | |
9a799d71 AK |
4710 | } |
4711 | ||
d4f80882 AV |
4712 | void ixgbe_reinit_locked(struct ixgbe_adapter *adapter) |
4713 | { | |
4714 | WARN_ON(in_interrupt()); | |
7086400d AD |
4715 | /* put off any impending NetWatchDogTimeout */ |
4716 | adapter->netdev->trans_start = jiffies; | |
4717 | ||
d4f80882 | 4718 | while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state)) |
032b4325 | 4719 | usleep_range(1000, 2000); |
d4f80882 | 4720 | ixgbe_down(adapter); |
5809a1ae GR |
4721 | /* |
4722 | * If SR-IOV enabled then wait a bit before bringing the adapter | |
4723 | * back up to give the VFs time to respond to the reset. The | |
4724 | * two second wait is based upon the watchdog timer cycle in | |
4725 | * the VF driver. | |
4726 | */ | |
4727 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
4728 | msleep(2000); | |
d4f80882 AV |
4729 | ixgbe_up(adapter); |
4730 | clear_bit(__IXGBE_RESETTING, &adapter->state); | |
4731 | } | |
4732 | ||
c7ccde0f | 4733 | void ixgbe_up(struct ixgbe_adapter *adapter) |
9a799d71 AK |
4734 | { |
4735 | /* hardware has been reset, we need to reload some things */ | |
4736 | ixgbe_configure(adapter); | |
4737 | ||
c7ccde0f | 4738 | ixgbe_up_complete(adapter); |
9a799d71 AK |
4739 | } |
4740 | ||
4741 | void ixgbe_reset(struct ixgbe_adapter *adapter) | |
4742 | { | |
c44ade9e | 4743 | struct ixgbe_hw *hw = &adapter->hw; |
8ca783ab DS |
4744 | int err; |
4745 | ||
b0483c8f MR |
4746 | if (ixgbe_removed(hw->hw_addr)) |
4747 | return; | |
7086400d AD |
4748 | /* lock SFP init bit to prevent race conditions with the watchdog */ |
4749 | while (test_and_set_bit(__IXGBE_IN_SFP_INIT, &adapter->state)) | |
4750 | usleep_range(1000, 2000); | |
4751 | ||
4752 | /* clear all SFP and link config related flags while holding SFP_INIT */ | |
4753 | adapter->flags2 &= ~(IXGBE_FLAG2_SEARCH_FOR_SFP | | |
4754 | IXGBE_FLAG2_SFP_NEEDS_RESET); | |
4755 | adapter->flags &= ~IXGBE_FLAG_NEED_LINK_CONFIG; | |
4756 | ||
8ca783ab | 4757 | err = hw->mac.ops.init_hw(hw); |
da4dd0f7 PWJ |
4758 | switch (err) { |
4759 | case 0: | |
4760 | case IXGBE_ERR_SFP_NOT_PRESENT: | |
7086400d | 4761 | case IXGBE_ERR_SFP_NOT_SUPPORTED: |
da4dd0f7 PWJ |
4762 | break; |
4763 | case IXGBE_ERR_MASTER_REQUESTS_PENDING: | |
849c4542 | 4764 | e_dev_err("master disable timed out\n"); |
da4dd0f7 | 4765 | break; |
794caeb2 PWJ |
4766 | case IXGBE_ERR_EEPROM_VERSION: |
4767 | /* We are running on a pre-production device, log a warning */ | |
849c4542 | 4768 | e_dev_warn("This device is a pre-production adapter/LOM. " |
52f33af8 | 4769 | "Please be aware there may be issues associated with " |
849c4542 ET |
4770 | "your hardware. If you are experiencing problems " |
4771 | "please contact your Intel or hardware " | |
4772 | "representative who provided you with this " | |
4773 | "hardware.\n"); | |
794caeb2 | 4774 | break; |
da4dd0f7 | 4775 | default: |
849c4542 | 4776 | e_dev_err("Hardware Error: %d\n", err); |
da4dd0f7 | 4777 | } |
9a799d71 | 4778 | |
7086400d AD |
4779 | clear_bit(__IXGBE_IN_SFP_INIT, &adapter->state); |
4780 | ||
9a799d71 | 4781 | /* reprogram the RAR[0] in case user changed it. */ |
1d9c0bfd | 4782 | hw->mac.ops.set_rar(hw, 0, hw->mac.addr, VMDQ_P(0), IXGBE_RAH_AV); |
7fa7c9dc AD |
4783 | |
4784 | /* update SAN MAC vmdq pool selection */ | |
4785 | if (hw->mac.san_mac_rar_index) | |
4786 | hw->mac.ops.set_vmdq_san_mac(hw, VMDQ_P(0)); | |
1a71ab24 | 4787 | |
8fecf67c | 4788 | if (test_bit(__IXGBE_PTP_RUNNING, &adapter->state)) |
1a71ab24 | 4789 | ixgbe_ptp_reset(adapter); |
9a799d71 AK |
4790 | } |
4791 | ||
9a799d71 AK |
4792 | /** |
4793 | * ixgbe_clean_tx_ring - Free Tx Buffers | |
9a799d71 AK |
4794 | * @tx_ring: ring to be cleaned |
4795 | **/ | |
b6ec895e | 4796 | static void ixgbe_clean_tx_ring(struct ixgbe_ring *tx_ring) |
9a799d71 AK |
4797 | { |
4798 | struct ixgbe_tx_buffer *tx_buffer_info; | |
4799 | unsigned long size; | |
b6ec895e | 4800 | u16 i; |
9a799d71 | 4801 | |
84418e3b AD |
4802 | /* ring already cleared, nothing to do */ |
4803 | if (!tx_ring->tx_buffer_info) | |
4804 | return; | |
9a799d71 | 4805 | |
84418e3b | 4806 | /* Free all the Tx ring sk_buffs */ |
9a799d71 AK |
4807 | for (i = 0; i < tx_ring->count; i++) { |
4808 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; | |
b6ec895e | 4809 | ixgbe_unmap_and_free_tx_resource(tx_ring, tx_buffer_info); |
9a799d71 AK |
4810 | } |
4811 | ||
dad8a3b3 JF |
4812 | netdev_tx_reset_queue(txring_txq(tx_ring)); |
4813 | ||
9a799d71 AK |
4814 | size = sizeof(struct ixgbe_tx_buffer) * tx_ring->count; |
4815 | memset(tx_ring->tx_buffer_info, 0, size); | |
4816 | ||
4817 | /* Zero out the descriptor ring */ | |
4818 | memset(tx_ring->desc, 0, tx_ring->size); | |
4819 | ||
4820 | tx_ring->next_to_use = 0; | |
4821 | tx_ring->next_to_clean = 0; | |
9a799d71 AK |
4822 | } |
4823 | ||
4824 | /** | |
021230d4 | 4825 | * ixgbe_clean_all_rx_rings - Free Rx Buffers for all queues |
9a799d71 AK |
4826 | * @adapter: board private structure |
4827 | **/ | |
021230d4 | 4828 | static void ixgbe_clean_all_rx_rings(struct ixgbe_adapter *adapter) |
9a799d71 AK |
4829 | { |
4830 | int i; | |
4831 | ||
021230d4 | 4832 | for (i = 0; i < adapter->num_rx_queues; i++) |
b6ec895e | 4833 | ixgbe_clean_rx_ring(adapter->rx_ring[i]); |
9a799d71 AK |
4834 | } |
4835 | ||
4836 | /** | |
021230d4 | 4837 | * ixgbe_clean_all_tx_rings - Free Tx Buffers for all queues |
9a799d71 AK |
4838 | * @adapter: board private structure |
4839 | **/ | |
021230d4 | 4840 | static void ixgbe_clean_all_tx_rings(struct ixgbe_adapter *adapter) |
9a799d71 AK |
4841 | { |
4842 | int i; | |
4843 | ||
021230d4 | 4844 | for (i = 0; i < adapter->num_tx_queues; i++) |
b6ec895e | 4845 | ixgbe_clean_tx_ring(adapter->tx_ring[i]); |
9a799d71 AK |
4846 | } |
4847 | ||
e4911d57 AD |
4848 | static void ixgbe_fdir_filter_exit(struct ixgbe_adapter *adapter) |
4849 | { | |
b67bfe0d | 4850 | struct hlist_node *node2; |
e4911d57 AD |
4851 | struct ixgbe_fdir_filter *filter; |
4852 | ||
4853 | spin_lock(&adapter->fdir_perfect_lock); | |
4854 | ||
b67bfe0d | 4855 | hlist_for_each_entry_safe(filter, node2, |
e4911d57 AD |
4856 | &adapter->fdir_filter_list, fdir_node) { |
4857 | hlist_del(&filter->fdir_node); | |
4858 | kfree(filter); | |
4859 | } | |
4860 | adapter->fdir_filter_count = 0; | |
4861 | ||
4862 | spin_unlock(&adapter->fdir_perfect_lock); | |
4863 | } | |
4864 | ||
9a799d71 AK |
4865 | void ixgbe_down(struct ixgbe_adapter *adapter) |
4866 | { | |
4867 | struct net_device *netdev = adapter->netdev; | |
7f821875 | 4868 | struct ixgbe_hw *hw = &adapter->hw; |
2a47fa45 JF |
4869 | struct net_device *upper; |
4870 | struct list_head *iter; | |
9a799d71 | 4871 | u32 rxctrl; |
bf29ee6c | 4872 | int i; |
9a799d71 AK |
4873 | |
4874 | /* signal that we are down to the interrupt handler */ | |
c3049c8f MR |
4875 | if (test_and_set_bit(__IXGBE_DOWN, &adapter->state)) |
4876 | return; /* do nothing if already down */ | |
9a799d71 AK |
4877 | |
4878 | /* disable receives */ | |
7f821875 JB |
4879 | rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL); |
4880 | IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl & ~IXGBE_RXCTRL_RXEN); | |
9a799d71 | 4881 | |
2d39d576 YZ |
4882 | /* disable all enabled rx queues */ |
4883 | for (i = 0; i < adapter->num_rx_queues; i++) | |
4884 | /* this call also flushes the previous write */ | |
4885 | ixgbe_disable_rx_queue(adapter, adapter->rx_ring[i]); | |
4886 | ||
032b4325 | 4887 | usleep_range(10000, 20000); |
9a799d71 | 4888 | |
7f821875 JB |
4889 | netif_tx_stop_all_queues(netdev); |
4890 | ||
7086400d | 4891 | /* call carrier off first to avoid false dev_watchdog timeouts */ |
c0dfb90e JF |
4892 | netif_carrier_off(netdev); |
4893 | netif_tx_disable(netdev); | |
4894 | ||
2a47fa45 JF |
4895 | /* disable any upper devices */ |
4896 | netdev_for_each_all_upper_dev_rcu(adapter->netdev, upper, iter) { | |
4897 | if (netif_is_macvlan(upper)) { | |
4898 | struct macvlan_dev *vlan = netdev_priv(upper); | |
4899 | ||
4900 | if (vlan->fwd_priv) { | |
4901 | netif_tx_stop_all_queues(upper); | |
4902 | netif_carrier_off(upper); | |
4903 | netif_tx_disable(upper); | |
4904 | } | |
4905 | } | |
4906 | } | |
4907 | ||
c0dfb90e JF |
4908 | ixgbe_irq_disable(adapter); |
4909 | ||
4910 | ixgbe_napi_disable_all(adapter); | |
4911 | ||
d034acf1 AD |
4912 | adapter->flags2 &= ~(IXGBE_FLAG2_FDIR_REQUIRES_REINIT | |
4913 | IXGBE_FLAG2_RESET_REQUESTED); | |
7086400d AD |
4914 | adapter->flags &= ~IXGBE_FLAG_NEED_LINK_UPDATE; |
4915 | ||
4916 | del_timer_sync(&adapter->service_timer); | |
4917 | ||
34cecbbf | 4918 | if (adapter->num_vfs) { |
8e34d1aa AD |
4919 | /* Clear EITR Select mapping */ |
4920 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, 0); | |
34cecbbf AD |
4921 | |
4922 | /* Mark all the VFs as inactive */ | |
4923 | for (i = 0 ; i < adapter->num_vfs; i++) | |
3db1cd5c | 4924 | adapter->vfinfo[i].clear_to_send = false; |
34cecbbf | 4925 | |
34cecbbf AD |
4926 | /* ping all the active vfs to let them know we are going down */ |
4927 | ixgbe_ping_all_vfs(adapter); | |
4928 | ||
4929 | /* Disable all VFTE/VFRE TX/RX */ | |
4930 | ixgbe_disable_tx_rx(adapter); | |
b25ebfd2 PW |
4931 | } |
4932 | ||
7f821875 JB |
4933 | /* disable transmits in the hardware now that interrupts are off */ |
4934 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
bf29ee6c | 4935 | u8 reg_idx = adapter->tx_ring[i]->reg_idx; |
34cecbbf | 4936 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), IXGBE_TXDCTL_SWFLSH); |
7f821875 | 4937 | } |
34cecbbf AD |
4938 | |
4939 | /* Disable the Tx DMA engine on 82599 and X540 */ | |
bd508178 AD |
4940 | switch (hw->mac.type) { |
4941 | case ixgbe_mac_82599EB: | |
b93a2226 | 4942 | case ixgbe_mac_X540: |
88512539 | 4943 | IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL, |
e8e9f696 JP |
4944 | (IXGBE_READ_REG(hw, IXGBE_DMATXCTL) & |
4945 | ~IXGBE_DMATXCTL_TE)); | |
bd508178 AD |
4946 | break; |
4947 | default: | |
4948 | break; | |
4949 | } | |
7f821875 | 4950 | |
6f4a0e45 PL |
4951 | if (!pci_channel_offline(adapter->pdev)) |
4952 | ixgbe_reset(adapter); | |
c6ecf39a | 4953 | |
ec74a471 ET |
4954 | /* power down the optics for 82599 SFP+ fiber */ |
4955 | if (hw->mac.ops.disable_tx_laser) | |
c6ecf39a DS |
4956 | hw->mac.ops.disable_tx_laser(hw); |
4957 | ||
9a799d71 AK |
4958 | ixgbe_clean_all_tx_rings(adapter); |
4959 | ixgbe_clean_all_rx_rings(adapter); | |
4960 | ||
5dd2d332 | 4961 | #ifdef CONFIG_IXGBE_DCA |
96b0e0f6 | 4962 | /* since we reset the hardware DCA settings were cleared */ |
e35ec126 | 4963 | ixgbe_setup_dca(adapter); |
96b0e0f6 | 4964 | #endif |
9a799d71 AK |
4965 | } |
4966 | ||
9a799d71 AK |
4967 | /** |
4968 | * ixgbe_tx_timeout - Respond to a Tx Hang | |
4969 | * @netdev: network interface device structure | |
4970 | **/ | |
4971 | static void ixgbe_tx_timeout(struct net_device *netdev) | |
4972 | { | |
4973 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
4974 | ||
4975 | /* Do the reset outside of interrupt context */ | |
c83c6cbd | 4976 | ixgbe_tx_timeout_reset(adapter); |
9a799d71 AK |
4977 | } |
4978 | ||
9a799d71 AK |
4979 | /** |
4980 | * ixgbe_sw_init - Initialize general software structures (struct ixgbe_adapter) | |
4981 | * @adapter: board private structure to initialize | |
4982 | * | |
4983 | * ixgbe_sw_init initializes the Adapter private data structure. | |
4984 | * Fields are initialized based on PCI device information and | |
4985 | * OS network device settings (MTU size). | |
4986 | **/ | |
9f9a12f8 | 4987 | static int ixgbe_sw_init(struct ixgbe_adapter *adapter) |
9a799d71 AK |
4988 | { |
4989 | struct ixgbe_hw *hw = &adapter->hw; | |
4990 | struct pci_dev *pdev = adapter->pdev; | |
d3cb9869 | 4991 | unsigned int rss, fdir; |
cb6d0f5e | 4992 | u32 fwsm; |
7a6b6f51 | 4993 | #ifdef CONFIG_IXGBE_DCB |
2f90b865 AD |
4994 | int j; |
4995 | struct tc_configuration *tc; | |
4996 | #endif | |
021230d4 | 4997 | |
c44ade9e JB |
4998 | /* PCI config space info */ |
4999 | ||
5000 | hw->vendor_id = pdev->vendor; | |
5001 | hw->device_id = pdev->device; | |
5002 | hw->revision_id = pdev->revision; | |
5003 | hw->subsystem_vendor_id = pdev->subsystem_vendor; | |
5004 | hw->subsystem_device_id = pdev->subsystem_device; | |
5005 | ||
8fc3bb6d | 5006 | /* Set common capability flags and settings */ |
3ed69d7e | 5007 | rss = min_t(int, IXGBE_MAX_RSS_INDICES, num_online_cpus()); |
c087663e | 5008 | adapter->ring_feature[RING_F_RSS].limit = rss; |
8fc3bb6d ET |
5009 | adapter->flags2 |= IXGBE_FLAG2_RSC_CAPABLE; |
5010 | adapter->flags2 |= IXGBE_FLAG2_RSC_ENABLED; | |
8fc3bb6d ET |
5011 | adapter->max_q_vectors = MAX_Q_VECTORS_82599; |
5012 | adapter->atr_sample_rate = 20; | |
d3cb9869 AD |
5013 | fdir = min_t(int, IXGBE_MAX_FDIR_INDICES, num_online_cpus()); |
5014 | adapter->ring_feature[RING_F_FDIR].limit = fdir; | |
8fc3bb6d ET |
5015 | adapter->fdir_pballoc = IXGBE_FDIR_PBALLOC_64K; |
5016 | #ifdef CONFIG_IXGBE_DCA | |
5017 | adapter->flags |= IXGBE_FLAG_DCA_CAPABLE; | |
5018 | #endif | |
5019 | #ifdef IXGBE_FCOE | |
5020 | adapter->flags |= IXGBE_FLAG_FCOE_CAPABLE; | |
5021 | adapter->flags &= ~IXGBE_FLAG_FCOE_ENABLED; | |
5022 | #ifdef CONFIG_IXGBE_DCB | |
5023 | /* Default traffic class to use for FCoE */ | |
5024 | adapter->fcoe.up = IXGBE_FCOE_DEFTC; | |
5025 | #endif /* CONFIG_IXGBE_DCB */ | |
5026 | #endif /* IXGBE_FCOE */ | |
5027 | ||
5028 | /* Set MAC specific capability flags and exceptions */ | |
bd508178 AD |
5029 | switch (hw->mac.type) { |
5030 | case ixgbe_mac_82598EB: | |
8fc3bb6d ET |
5031 | adapter->flags2 &= ~IXGBE_FLAG2_RSC_CAPABLE; |
5032 | adapter->flags2 &= ~IXGBE_FLAG2_RSC_ENABLED; | |
5033 | ||
bf069c97 DS |
5034 | if (hw->device_id == IXGBE_DEV_ID_82598AT) |
5035 | adapter->flags |= IXGBE_FLAG_FAN_FAIL_CAPABLE; | |
8fc3bb6d | 5036 | |
49c7ffbe | 5037 | adapter->max_q_vectors = MAX_Q_VECTORS_82598; |
8fc3bb6d ET |
5038 | adapter->ring_feature[RING_F_FDIR].limit = 0; |
5039 | adapter->atr_sample_rate = 0; | |
5040 | adapter->fdir_pballoc = 0; | |
5041 | #ifdef IXGBE_FCOE | |
5042 | adapter->flags &= ~IXGBE_FLAG_FCOE_CAPABLE; | |
5043 | adapter->flags &= ~IXGBE_FLAG_FCOE_ENABLED; | |
5044 | #ifdef CONFIG_IXGBE_DCB | |
5045 | adapter->fcoe.up = 0; | |
5046 | #endif /* IXGBE_DCB */ | |
5047 | #endif /* IXGBE_FCOE */ | |
5048 | break; | |
5049 | case ixgbe_mac_82599EB: | |
5050 | if (hw->device_id == IXGBE_DEV_ID_82599_T3_LOM) | |
5051 | adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_CAPABLE; | |
bd508178 | 5052 | break; |
b93a2226 | 5053 | case ixgbe_mac_X540: |
cb6d0f5e JK |
5054 | fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM); |
5055 | if (fwsm & IXGBE_FWSM_TS_ENABLED) | |
5056 | adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_CAPABLE; | |
bd508178 AD |
5057 | break; |
5058 | default: | |
5059 | break; | |
f8212f97 | 5060 | } |
2f90b865 | 5061 | |
7c8ae65a AD |
5062 | #ifdef IXGBE_FCOE |
5063 | /* FCoE support exists, always init the FCoE lock */ | |
5064 | spin_lock_init(&adapter->fcoe.lock); | |
5065 | ||
5066 | #endif | |
1fc5f038 AD |
5067 | /* n-tuple support exists, always init our spinlock */ |
5068 | spin_lock_init(&adapter->fdir_perfect_lock); | |
5069 | ||
7a6b6f51 | 5070 | #ifdef CONFIG_IXGBE_DCB |
4de2a022 JF |
5071 | switch (hw->mac.type) { |
5072 | case ixgbe_mac_X540: | |
5073 | adapter->dcb_cfg.num_tcs.pg_tcs = X540_TRAFFIC_CLASS; | |
5074 | adapter->dcb_cfg.num_tcs.pfc_tcs = X540_TRAFFIC_CLASS; | |
5075 | break; | |
5076 | default: | |
5077 | adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS; | |
5078 | adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS; | |
5079 | break; | |
5080 | } | |
5081 | ||
2f90b865 AD |
5082 | /* Configure DCB traffic classes */ |
5083 | for (j = 0; j < MAX_TRAFFIC_CLASS; j++) { | |
5084 | tc = &adapter->dcb_cfg.tc_config[j]; | |
5085 | tc->path[DCB_TX_CONFIG].bwg_id = 0; | |
5086 | tc->path[DCB_TX_CONFIG].bwg_percent = 12 + (j & 1); | |
5087 | tc->path[DCB_RX_CONFIG].bwg_id = 0; | |
5088 | tc->path[DCB_RX_CONFIG].bwg_percent = 12 + (j & 1); | |
5089 | tc->dcb_pfc = pfc_disabled; | |
5090 | } | |
4de2a022 JF |
5091 | |
5092 | /* Initialize default user to priority mapping, UPx->TC0 */ | |
5093 | tc = &adapter->dcb_cfg.tc_config[0]; | |
5094 | tc->path[DCB_TX_CONFIG].up_to_tc_bitmap = 0xFF; | |
5095 | tc->path[DCB_RX_CONFIG].up_to_tc_bitmap = 0xFF; | |
5096 | ||
2f90b865 AD |
5097 | adapter->dcb_cfg.bw_percentage[DCB_TX_CONFIG][0] = 100; |
5098 | adapter->dcb_cfg.bw_percentage[DCB_RX_CONFIG][0] = 100; | |
264857b8 | 5099 | adapter->dcb_cfg.pfc_mode_enable = false; |
2f90b865 | 5100 | adapter->dcb_set_bitmap = 0x00; |
3032309b | 5101 | adapter->dcbx_cap = DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_CEE; |
f525c6d2 JF |
5102 | memcpy(&adapter->temp_dcb_cfg, &adapter->dcb_cfg, |
5103 | sizeof(adapter->temp_dcb_cfg)); | |
2f90b865 AD |
5104 | |
5105 | #endif | |
9a799d71 AK |
5106 | |
5107 | /* default flow control settings */ | |
cd7664f6 | 5108 | hw->fc.requested_mode = ixgbe_fc_full; |
71fd570b | 5109 | hw->fc.current_mode = ixgbe_fc_full; /* init for ethtool output */ |
9da712d2 | 5110 | ixgbe_pbthresh_setup(adapter); |
2b9ade93 JB |
5111 | hw->fc.pause_time = IXGBE_DEFAULT_FCPAUSE; |
5112 | hw->fc.send_xon = true; | |
73d80953 | 5113 | hw->fc.disable_fc_autoneg = ixgbe_device_supports_autoneg_fc(hw); |
9a799d71 | 5114 | |
99d74487 | 5115 | #ifdef CONFIG_PCI_IOV |
170e8543 JK |
5116 | if (max_vfs > 0) |
5117 | e_dev_warn("Enabling SR-IOV VFs using the max_vfs module parameter is deprecated - please use the pci sysfs interface instead.\n"); | |
5118 | ||
99d74487 | 5119 | /* assign number of SR-IOV VFs */ |
170e8543 | 5120 | if (hw->mac.type != ixgbe_mac_82598EB) { |
dcc23e3a | 5121 | if (max_vfs > IXGBE_MAX_VFS_DRV_LIMIT) { |
170e8543 JK |
5122 | adapter->num_vfs = 0; |
5123 | e_dev_warn("max_vfs parameter out of range. Not assigning any SR-IOV VFs\n"); | |
5124 | } else { | |
5125 | adapter->num_vfs = max_vfs; | |
5126 | } | |
5127 | } | |
5128 | #endif /* CONFIG_PCI_IOV */ | |
99d74487 | 5129 | |
30efa5a3 | 5130 | /* enable itr by default in dynamic mode */ |
f7554a2b | 5131 | adapter->rx_itr_setting = 1; |
f7554a2b | 5132 | adapter->tx_itr_setting = 1; |
30efa5a3 | 5133 | |
30efa5a3 JB |
5134 | /* set default ring sizes */ |
5135 | adapter->tx_ring_count = IXGBE_DEFAULT_TXD; | |
5136 | adapter->rx_ring_count = IXGBE_DEFAULT_RXD; | |
5137 | ||
bd198058 | 5138 | /* set default work limits */ |
59224555 | 5139 | adapter->tx_work_limit = IXGBE_DEFAULT_TX_WORK; |
bd198058 | 5140 | |
9a799d71 | 5141 | /* initialize eeprom parameters */ |
c44ade9e | 5142 | if (ixgbe_init_eeprom_params_generic(hw)) { |
849c4542 | 5143 | e_dev_err("EEPROM initialization failed\n"); |
9a799d71 AK |
5144 | return -EIO; |
5145 | } | |
5146 | ||
2a47fa45 JF |
5147 | /* PF holds first pool slot */ |
5148 | set_bit(0, &adapter->fwd_bitmask); | |
9a799d71 AK |
5149 | set_bit(__IXGBE_DOWN, &adapter->state); |
5150 | ||
5151 | return 0; | |
5152 | } | |
5153 | ||
5154 | /** | |
5155 | * ixgbe_setup_tx_resources - allocate Tx resources (Descriptors) | |
3a581073 | 5156 | * @tx_ring: tx descriptor ring (for a specific queue) to setup |
9a799d71 AK |
5157 | * |
5158 | * Return 0 on success, negative on failure | |
5159 | **/ | |
b6ec895e | 5160 | int ixgbe_setup_tx_resources(struct ixgbe_ring *tx_ring) |
9a799d71 | 5161 | { |
b6ec895e | 5162 | struct device *dev = tx_ring->dev; |
de88eeeb AD |
5163 | int orig_node = dev_to_node(dev); |
5164 | int numa_node = -1; | |
9a799d71 AK |
5165 | int size; |
5166 | ||
3a581073 | 5167 | size = sizeof(struct ixgbe_tx_buffer) * tx_ring->count; |
de88eeeb AD |
5168 | |
5169 | if (tx_ring->q_vector) | |
5170 | numa_node = tx_ring->q_vector->numa_node; | |
5171 | ||
5172 | tx_ring->tx_buffer_info = vzalloc_node(size, numa_node); | |
1a6c14a2 | 5173 | if (!tx_ring->tx_buffer_info) |
89bf67f1 | 5174 | tx_ring->tx_buffer_info = vzalloc(size); |
e01c31a5 JB |
5175 | if (!tx_ring->tx_buffer_info) |
5176 | goto err; | |
9a799d71 | 5177 | |
827da44c JS |
5178 | u64_stats_init(&tx_ring->syncp); |
5179 | ||
9a799d71 | 5180 | /* round up to nearest 4K */ |
12207e49 | 5181 | tx_ring->size = tx_ring->count * sizeof(union ixgbe_adv_tx_desc); |
3a581073 | 5182 | tx_ring->size = ALIGN(tx_ring->size, 4096); |
9a799d71 | 5183 | |
de88eeeb AD |
5184 | set_dev_node(dev, numa_node); |
5185 | tx_ring->desc = dma_alloc_coherent(dev, | |
5186 | tx_ring->size, | |
5187 | &tx_ring->dma, | |
5188 | GFP_KERNEL); | |
5189 | set_dev_node(dev, orig_node); | |
5190 | if (!tx_ring->desc) | |
5191 | tx_ring->desc = dma_alloc_coherent(dev, tx_ring->size, | |
5192 | &tx_ring->dma, GFP_KERNEL); | |
e01c31a5 JB |
5193 | if (!tx_ring->desc) |
5194 | goto err; | |
9a799d71 | 5195 | |
3a581073 JB |
5196 | tx_ring->next_to_use = 0; |
5197 | tx_ring->next_to_clean = 0; | |
9a799d71 | 5198 | return 0; |
e01c31a5 JB |
5199 | |
5200 | err: | |
5201 | vfree(tx_ring->tx_buffer_info); | |
5202 | tx_ring->tx_buffer_info = NULL; | |
b6ec895e | 5203 | dev_err(dev, "Unable to allocate memory for the Tx descriptor ring\n"); |
e01c31a5 | 5204 | return -ENOMEM; |
9a799d71 AK |
5205 | } |
5206 | ||
69888674 AD |
5207 | /** |
5208 | * ixgbe_setup_all_tx_resources - allocate all queues Tx resources | |
5209 | * @adapter: board private structure | |
5210 | * | |
5211 | * If this function returns with an error, then it's possible one or | |
5212 | * more of the rings is populated (while the rest are not). It is the | |
5213 | * callers duty to clean those orphaned rings. | |
5214 | * | |
5215 | * Return 0 on success, negative on failure | |
5216 | **/ | |
5217 | static int ixgbe_setup_all_tx_resources(struct ixgbe_adapter *adapter) | |
5218 | { | |
5219 | int i, err = 0; | |
5220 | ||
5221 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
b6ec895e | 5222 | err = ixgbe_setup_tx_resources(adapter->tx_ring[i]); |
69888674 AD |
5223 | if (!err) |
5224 | continue; | |
de3d5b94 | 5225 | |
396e799c | 5226 | e_err(probe, "Allocation for Tx Queue %u failed\n", i); |
de3d5b94 | 5227 | goto err_setup_tx; |
69888674 AD |
5228 | } |
5229 | ||
de3d5b94 AD |
5230 | return 0; |
5231 | err_setup_tx: | |
5232 | /* rewind the index freeing the rings as we go */ | |
5233 | while (i--) | |
5234 | ixgbe_free_tx_resources(adapter->tx_ring[i]); | |
69888674 AD |
5235 | return err; |
5236 | } | |
5237 | ||
9a799d71 AK |
5238 | /** |
5239 | * ixgbe_setup_rx_resources - allocate Rx resources (Descriptors) | |
3a581073 | 5240 | * @rx_ring: rx descriptor ring (for a specific queue) to setup |
9a799d71 AK |
5241 | * |
5242 | * Returns 0 on success, negative on failure | |
5243 | **/ | |
b6ec895e | 5244 | int ixgbe_setup_rx_resources(struct ixgbe_ring *rx_ring) |
9a799d71 | 5245 | { |
b6ec895e | 5246 | struct device *dev = rx_ring->dev; |
de88eeeb AD |
5247 | int orig_node = dev_to_node(dev); |
5248 | int numa_node = -1; | |
021230d4 | 5249 | int size; |
9a799d71 | 5250 | |
3a581073 | 5251 | size = sizeof(struct ixgbe_rx_buffer) * rx_ring->count; |
de88eeeb AD |
5252 | |
5253 | if (rx_ring->q_vector) | |
5254 | numa_node = rx_ring->q_vector->numa_node; | |
5255 | ||
5256 | rx_ring->rx_buffer_info = vzalloc_node(size, numa_node); | |
1a6c14a2 | 5257 | if (!rx_ring->rx_buffer_info) |
89bf67f1 | 5258 | rx_ring->rx_buffer_info = vzalloc(size); |
b6ec895e AD |
5259 | if (!rx_ring->rx_buffer_info) |
5260 | goto err; | |
9a799d71 | 5261 | |
827da44c JS |
5262 | u64_stats_init(&rx_ring->syncp); |
5263 | ||
9a799d71 | 5264 | /* Round up to nearest 4K */ |
3a581073 JB |
5265 | rx_ring->size = rx_ring->count * sizeof(union ixgbe_adv_rx_desc); |
5266 | rx_ring->size = ALIGN(rx_ring->size, 4096); | |
9a799d71 | 5267 | |
de88eeeb AD |
5268 | set_dev_node(dev, numa_node); |
5269 | rx_ring->desc = dma_alloc_coherent(dev, | |
5270 | rx_ring->size, | |
5271 | &rx_ring->dma, | |
5272 | GFP_KERNEL); | |
5273 | set_dev_node(dev, orig_node); | |
5274 | if (!rx_ring->desc) | |
5275 | rx_ring->desc = dma_alloc_coherent(dev, rx_ring->size, | |
5276 | &rx_ring->dma, GFP_KERNEL); | |
b6ec895e AD |
5277 | if (!rx_ring->desc) |
5278 | goto err; | |
9a799d71 | 5279 | |
3a581073 JB |
5280 | rx_ring->next_to_clean = 0; |
5281 | rx_ring->next_to_use = 0; | |
9a799d71 AK |
5282 | |
5283 | return 0; | |
b6ec895e AD |
5284 | err: |
5285 | vfree(rx_ring->rx_buffer_info); | |
5286 | rx_ring->rx_buffer_info = NULL; | |
5287 | dev_err(dev, "Unable to allocate memory for the Rx descriptor ring\n"); | |
177db6ff | 5288 | return -ENOMEM; |
9a799d71 AK |
5289 | } |
5290 | ||
69888674 AD |
5291 | /** |
5292 | * ixgbe_setup_all_rx_resources - allocate all queues Rx resources | |
5293 | * @adapter: board private structure | |
5294 | * | |
5295 | * If this function returns with an error, then it's possible one or | |
5296 | * more of the rings is populated (while the rest are not). It is the | |
5297 | * callers duty to clean those orphaned rings. | |
5298 | * | |
5299 | * Return 0 on success, negative on failure | |
5300 | **/ | |
69888674 AD |
5301 | static int ixgbe_setup_all_rx_resources(struct ixgbe_adapter *adapter) |
5302 | { | |
5303 | int i, err = 0; | |
5304 | ||
5305 | for (i = 0; i < adapter->num_rx_queues; i++) { | |
b6ec895e | 5306 | err = ixgbe_setup_rx_resources(adapter->rx_ring[i]); |
69888674 AD |
5307 | if (!err) |
5308 | continue; | |
de3d5b94 | 5309 | |
396e799c | 5310 | e_err(probe, "Allocation for Rx Queue %u failed\n", i); |
de3d5b94 | 5311 | goto err_setup_rx; |
69888674 AD |
5312 | } |
5313 | ||
7c8ae65a AD |
5314 | #ifdef IXGBE_FCOE |
5315 | err = ixgbe_setup_fcoe_ddp_resources(adapter); | |
5316 | if (!err) | |
5317 | #endif | |
5318 | return 0; | |
de3d5b94 AD |
5319 | err_setup_rx: |
5320 | /* rewind the index freeing the rings as we go */ | |
5321 | while (i--) | |
5322 | ixgbe_free_rx_resources(adapter->rx_ring[i]); | |
69888674 AD |
5323 | return err; |
5324 | } | |
5325 | ||
9a799d71 AK |
5326 | /** |
5327 | * ixgbe_free_tx_resources - Free Tx Resources per Queue | |
9a799d71 AK |
5328 | * @tx_ring: Tx descriptor ring for a specific queue |
5329 | * | |
5330 | * Free all transmit software resources | |
5331 | **/ | |
b6ec895e | 5332 | void ixgbe_free_tx_resources(struct ixgbe_ring *tx_ring) |
9a799d71 | 5333 | { |
b6ec895e | 5334 | ixgbe_clean_tx_ring(tx_ring); |
9a799d71 AK |
5335 | |
5336 | vfree(tx_ring->tx_buffer_info); | |
5337 | tx_ring->tx_buffer_info = NULL; | |
5338 | ||
b6ec895e AD |
5339 | /* if not set, then don't free */ |
5340 | if (!tx_ring->desc) | |
5341 | return; | |
5342 | ||
5343 | dma_free_coherent(tx_ring->dev, tx_ring->size, | |
5344 | tx_ring->desc, tx_ring->dma); | |
9a799d71 AK |
5345 | |
5346 | tx_ring->desc = NULL; | |
5347 | } | |
5348 | ||
5349 | /** | |
5350 | * ixgbe_free_all_tx_resources - Free Tx Resources for All Queues | |
5351 | * @adapter: board private structure | |
5352 | * | |
5353 | * Free all transmit software resources | |
5354 | **/ | |
5355 | static void ixgbe_free_all_tx_resources(struct ixgbe_adapter *adapter) | |
5356 | { | |
5357 | int i; | |
5358 | ||
5359 | for (i = 0; i < adapter->num_tx_queues; i++) | |
4a0b9ca0 | 5360 | if (adapter->tx_ring[i]->desc) |
b6ec895e | 5361 | ixgbe_free_tx_resources(adapter->tx_ring[i]); |
9a799d71 AK |
5362 | } |
5363 | ||
5364 | /** | |
b4617240 | 5365 | * ixgbe_free_rx_resources - Free Rx Resources |
9a799d71 AK |
5366 | * @rx_ring: ring to clean the resources from |
5367 | * | |
5368 | * Free all receive software resources | |
5369 | **/ | |
b6ec895e | 5370 | void ixgbe_free_rx_resources(struct ixgbe_ring *rx_ring) |
9a799d71 | 5371 | { |
b6ec895e | 5372 | ixgbe_clean_rx_ring(rx_ring); |
9a799d71 AK |
5373 | |
5374 | vfree(rx_ring->rx_buffer_info); | |
5375 | rx_ring->rx_buffer_info = NULL; | |
5376 | ||
b6ec895e AD |
5377 | /* if not set, then don't free */ |
5378 | if (!rx_ring->desc) | |
5379 | return; | |
5380 | ||
5381 | dma_free_coherent(rx_ring->dev, rx_ring->size, | |
5382 | rx_ring->desc, rx_ring->dma); | |
9a799d71 AK |
5383 | |
5384 | rx_ring->desc = NULL; | |
5385 | } | |
5386 | ||
5387 | /** | |
5388 | * ixgbe_free_all_rx_resources - Free Rx Resources for All Queues | |
5389 | * @adapter: board private structure | |
5390 | * | |
5391 | * Free all receive software resources | |
5392 | **/ | |
5393 | static void ixgbe_free_all_rx_resources(struct ixgbe_adapter *adapter) | |
5394 | { | |
5395 | int i; | |
5396 | ||
7c8ae65a AD |
5397 | #ifdef IXGBE_FCOE |
5398 | ixgbe_free_fcoe_ddp_resources(adapter); | |
5399 | ||
5400 | #endif | |
9a799d71 | 5401 | for (i = 0; i < adapter->num_rx_queues; i++) |
4a0b9ca0 | 5402 | if (adapter->rx_ring[i]->desc) |
b6ec895e | 5403 | ixgbe_free_rx_resources(adapter->rx_ring[i]); |
9a799d71 AK |
5404 | } |
5405 | ||
9a799d71 AK |
5406 | /** |
5407 | * ixgbe_change_mtu - Change the Maximum Transfer Unit | |
5408 | * @netdev: network interface device structure | |
5409 | * @new_mtu: new value for maximum frame size | |
5410 | * | |
5411 | * Returns 0 on success, negative on failure | |
5412 | **/ | |
5413 | static int ixgbe_change_mtu(struct net_device *netdev, int new_mtu) | |
5414 | { | |
5415 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
5416 | int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN; | |
5417 | ||
42c783c5 | 5418 | /* MTU < 68 is an error and causes problems on some kernels */ |
655309e9 AD |
5419 | if ((new_mtu < 68) || (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE)) |
5420 | return -EINVAL; | |
5421 | ||
5422 | /* | |
872844dd AD |
5423 | * For 82599EB we cannot allow legacy VFs to enable their receive |
5424 | * paths when MTU greater than 1500 is configured. So display a | |
5425 | * warning that legacy VFs will be disabled. | |
655309e9 AD |
5426 | */ |
5427 | if ((adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) && | |
5428 | (adapter->hw.mac.type == ixgbe_mac_82599EB) && | |
c560451c | 5429 | (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN))) |
872844dd | 5430 | e_warn(probe, "Setting MTU > 1500 will disable legacy VFs\n"); |
9a799d71 | 5431 | |
396e799c | 5432 | e_info(probe, "changing MTU from %d to %d\n", netdev->mtu, new_mtu); |
655309e9 | 5433 | |
021230d4 | 5434 | /* must set new MTU before calling down or up */ |
9a799d71 AK |
5435 | netdev->mtu = new_mtu; |
5436 | ||
d4f80882 AV |
5437 | if (netif_running(netdev)) |
5438 | ixgbe_reinit_locked(adapter); | |
9a799d71 AK |
5439 | |
5440 | return 0; | |
5441 | } | |
5442 | ||
5443 | /** | |
5444 | * ixgbe_open - Called when a network interface is made active | |
5445 | * @netdev: network interface device structure | |
5446 | * | |
5447 | * Returns 0 on success, negative value on failure | |
5448 | * | |
5449 | * The open entry point is called when a network interface is made | |
5450 | * active by the system (IFF_UP). At this point all resources needed | |
5451 | * for transmit and receive operations are allocated, the interrupt | |
5452 | * handler is registered with the OS, the watchdog timer is started, | |
5453 | * and the stack is notified that the interface is ready. | |
5454 | **/ | |
5455 | static int ixgbe_open(struct net_device *netdev) | |
5456 | { | |
5457 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
2a47fa45 | 5458 | int err, queues; |
4bebfaa5 AK |
5459 | |
5460 | /* disallow open during test */ | |
5461 | if (test_bit(__IXGBE_TESTING, &adapter->state)) | |
5462 | return -EBUSY; | |
9a799d71 | 5463 | |
54386467 JB |
5464 | netif_carrier_off(netdev); |
5465 | ||
9a799d71 AK |
5466 | /* allocate transmit descriptors */ |
5467 | err = ixgbe_setup_all_tx_resources(adapter); | |
5468 | if (err) | |
5469 | goto err_setup_tx; | |
5470 | ||
9a799d71 AK |
5471 | /* allocate receive descriptors */ |
5472 | err = ixgbe_setup_all_rx_resources(adapter); | |
5473 | if (err) | |
5474 | goto err_setup_rx; | |
5475 | ||
5476 | ixgbe_configure(adapter); | |
5477 | ||
021230d4 | 5478 | err = ixgbe_request_irq(adapter); |
9a799d71 AK |
5479 | if (err) |
5480 | goto err_req_irq; | |
5481 | ||
ac802f5d | 5482 | /* Notify the stack of the actual queue counts. */ |
2a47fa45 JF |
5483 | if (adapter->num_rx_pools > 1) |
5484 | queues = adapter->num_rx_queues_per_pool; | |
5485 | else | |
5486 | queues = adapter->num_tx_queues; | |
5487 | ||
5488 | err = netif_set_real_num_tx_queues(netdev, queues); | |
ac802f5d AD |
5489 | if (err) |
5490 | goto err_set_queues; | |
5491 | ||
2a47fa45 JF |
5492 | if (adapter->num_rx_pools > 1 && |
5493 | adapter->num_rx_queues > IXGBE_MAX_L2A_QUEUES) | |
5494 | queues = IXGBE_MAX_L2A_QUEUES; | |
5495 | else | |
5496 | queues = adapter->num_rx_queues; | |
5497 | err = netif_set_real_num_rx_queues(netdev, queues); | |
ac802f5d AD |
5498 | if (err) |
5499 | goto err_set_queues; | |
5500 | ||
1a71ab24 | 5501 | ixgbe_ptp_init(adapter); |
1a71ab24 | 5502 | |
c7ccde0f | 5503 | ixgbe_up_complete(adapter); |
9a799d71 AK |
5504 | |
5505 | return 0; | |
5506 | ||
ac802f5d AD |
5507 | err_set_queues: |
5508 | ixgbe_free_irq(adapter); | |
9a799d71 | 5509 | err_req_irq: |
a20a1199 | 5510 | ixgbe_free_all_rx_resources(adapter); |
de3d5b94 | 5511 | err_setup_rx: |
a20a1199 | 5512 | ixgbe_free_all_tx_resources(adapter); |
de3d5b94 | 5513 | err_setup_tx: |
9a799d71 AK |
5514 | ixgbe_reset(adapter); |
5515 | ||
5516 | return err; | |
5517 | } | |
5518 | ||
5519 | /** | |
5520 | * ixgbe_close - Disables a network interface | |
5521 | * @netdev: network interface device structure | |
5522 | * | |
5523 | * Returns 0, this is not allowed to fail | |
5524 | * | |
5525 | * The close entry point is called when an interface is de-activated | |
5526 | * by the OS. The hardware is still under the drivers control, but | |
5527 | * needs to be disabled. A global MAC reset is issued to stop the | |
5528 | * hardware, and all transmit and receive resources are freed. | |
5529 | **/ | |
5530 | static int ixgbe_close(struct net_device *netdev) | |
5531 | { | |
5532 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
9a799d71 | 5533 | |
1a71ab24 | 5534 | ixgbe_ptp_stop(adapter); |
1a71ab24 | 5535 | |
9a799d71 AK |
5536 | ixgbe_down(adapter); |
5537 | ixgbe_free_irq(adapter); | |
5538 | ||
e4911d57 AD |
5539 | ixgbe_fdir_filter_exit(adapter); |
5540 | ||
9a799d71 AK |
5541 | ixgbe_free_all_tx_resources(adapter); |
5542 | ixgbe_free_all_rx_resources(adapter); | |
5543 | ||
5eba3699 | 5544 | ixgbe_release_hw_control(adapter); |
9a799d71 AK |
5545 | |
5546 | return 0; | |
5547 | } | |
5548 | ||
b3c8b4ba AD |
5549 | #ifdef CONFIG_PM |
5550 | static int ixgbe_resume(struct pci_dev *pdev) | |
5551 | { | |
c60fbb00 AD |
5552 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
5553 | struct net_device *netdev = adapter->netdev; | |
b3c8b4ba AD |
5554 | u32 err; |
5555 | ||
0391bbe3 | 5556 | adapter->hw.hw_addr = adapter->io_addr; |
b3c8b4ba AD |
5557 | pci_set_power_state(pdev, PCI_D0); |
5558 | pci_restore_state(pdev); | |
656ab817 DS |
5559 | /* |
5560 | * pci_restore_state clears dev->state_saved so call | |
5561 | * pci_save_state to restore it. | |
5562 | */ | |
5563 | pci_save_state(pdev); | |
9ce77666 | 5564 | |
5565 | err = pci_enable_device_mem(pdev); | |
b3c8b4ba | 5566 | if (err) { |
849c4542 | 5567 | e_dev_err("Cannot enable PCI device from suspend\n"); |
b3c8b4ba AD |
5568 | return err; |
5569 | } | |
41c62843 MR |
5570 | smp_mb__before_clear_bit(); |
5571 | clear_bit(__IXGBE_DISABLED, &adapter->state); | |
b3c8b4ba AD |
5572 | pci_set_master(pdev); |
5573 | ||
dd4d8ca6 | 5574 | pci_wake_from_d3(pdev, false); |
b3c8b4ba | 5575 | |
b3c8b4ba AD |
5576 | ixgbe_reset(adapter); |
5577 | ||
495dce12 WJP |
5578 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); |
5579 | ||
ac802f5d AD |
5580 | rtnl_lock(); |
5581 | err = ixgbe_init_interrupt_scheme(adapter); | |
5582 | if (!err && netif_running(netdev)) | |
c60fbb00 | 5583 | err = ixgbe_open(netdev); |
ac802f5d AD |
5584 | |
5585 | rtnl_unlock(); | |
5586 | ||
5587 | if (err) | |
5588 | return err; | |
b3c8b4ba AD |
5589 | |
5590 | netif_device_attach(netdev); | |
5591 | ||
5592 | return 0; | |
5593 | } | |
b3c8b4ba | 5594 | #endif /* CONFIG_PM */ |
9d8d05ae RW |
5595 | |
5596 | static int __ixgbe_shutdown(struct pci_dev *pdev, bool *enable_wake) | |
b3c8b4ba | 5597 | { |
c60fbb00 AD |
5598 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
5599 | struct net_device *netdev = adapter->netdev; | |
e8e26350 PW |
5600 | struct ixgbe_hw *hw = &adapter->hw; |
5601 | u32 ctrl, fctrl; | |
5602 | u32 wufc = adapter->wol; | |
b3c8b4ba AD |
5603 | #ifdef CONFIG_PM |
5604 | int retval = 0; | |
5605 | #endif | |
5606 | ||
5607 | netif_device_detach(netdev); | |
5608 | ||
499ab5cc | 5609 | rtnl_lock(); |
b3c8b4ba AD |
5610 | if (netif_running(netdev)) { |
5611 | ixgbe_down(adapter); | |
5612 | ixgbe_free_irq(adapter); | |
5613 | ixgbe_free_all_tx_resources(adapter); | |
5614 | ixgbe_free_all_rx_resources(adapter); | |
5615 | } | |
499ab5cc | 5616 | rtnl_unlock(); |
b3c8b4ba | 5617 | |
5f5ae6fc AD |
5618 | ixgbe_clear_interrupt_scheme(adapter); |
5619 | ||
b3c8b4ba AD |
5620 | #ifdef CONFIG_PM |
5621 | retval = pci_save_state(pdev); | |
5622 | if (retval) | |
5623 | return retval; | |
4df10466 | 5624 | |
b3c8b4ba | 5625 | #endif |
f4f1040a JK |
5626 | if (hw->mac.ops.stop_link_on_d3) |
5627 | hw->mac.ops.stop_link_on_d3(hw); | |
5628 | ||
e8e26350 PW |
5629 | if (wufc) { |
5630 | ixgbe_set_rx_mode(netdev); | |
b3c8b4ba | 5631 | |
ec74a471 ET |
5632 | /* enable the optics for 82599 SFP+ fiber as we can WoL */ |
5633 | if (hw->mac.ops.enable_tx_laser) | |
c509e754 DS |
5634 | hw->mac.ops.enable_tx_laser(hw); |
5635 | ||
e8e26350 PW |
5636 | /* turn on all-multi mode if wake on multicast is enabled */ |
5637 | if (wufc & IXGBE_WUFC_MC) { | |
5638 | fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL); | |
5639 | fctrl |= IXGBE_FCTRL_MPE; | |
5640 | IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl); | |
5641 | } | |
5642 | ||
5643 | ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL); | |
5644 | ctrl |= IXGBE_CTRL_GIO_DIS; | |
5645 | IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl); | |
5646 | ||
5647 | IXGBE_WRITE_REG(hw, IXGBE_WUFC, wufc); | |
5648 | } else { | |
5649 | IXGBE_WRITE_REG(hw, IXGBE_WUC, 0); | |
5650 | IXGBE_WRITE_REG(hw, IXGBE_WUFC, 0); | |
5651 | } | |
5652 | ||
bd508178 AD |
5653 | switch (hw->mac.type) { |
5654 | case ixgbe_mac_82598EB: | |
dd4d8ca6 | 5655 | pci_wake_from_d3(pdev, false); |
bd508178 AD |
5656 | break; |
5657 | case ixgbe_mac_82599EB: | |
b93a2226 | 5658 | case ixgbe_mac_X540: |
bd508178 AD |
5659 | pci_wake_from_d3(pdev, !!wufc); |
5660 | break; | |
5661 | default: | |
5662 | break; | |
5663 | } | |
b3c8b4ba | 5664 | |
9d8d05ae RW |
5665 | *enable_wake = !!wufc; |
5666 | ||
b3c8b4ba AD |
5667 | ixgbe_release_hw_control(adapter); |
5668 | ||
41c62843 MR |
5669 | if (!test_and_set_bit(__IXGBE_DISABLED, &adapter->state)) |
5670 | pci_disable_device(pdev); | |
b3c8b4ba | 5671 | |
9d8d05ae RW |
5672 | return 0; |
5673 | } | |
5674 | ||
5675 | #ifdef CONFIG_PM | |
5676 | static int ixgbe_suspend(struct pci_dev *pdev, pm_message_t state) | |
5677 | { | |
5678 | int retval; | |
5679 | bool wake; | |
5680 | ||
5681 | retval = __ixgbe_shutdown(pdev, &wake); | |
5682 | if (retval) | |
5683 | return retval; | |
5684 | ||
5685 | if (wake) { | |
5686 | pci_prepare_to_sleep(pdev); | |
5687 | } else { | |
5688 | pci_wake_from_d3(pdev, false); | |
5689 | pci_set_power_state(pdev, PCI_D3hot); | |
5690 | } | |
b3c8b4ba AD |
5691 | |
5692 | return 0; | |
5693 | } | |
9d8d05ae | 5694 | #endif /* CONFIG_PM */ |
b3c8b4ba AD |
5695 | |
5696 | static void ixgbe_shutdown(struct pci_dev *pdev) | |
5697 | { | |
9d8d05ae RW |
5698 | bool wake; |
5699 | ||
5700 | __ixgbe_shutdown(pdev, &wake); | |
5701 | ||
5702 | if (system_state == SYSTEM_POWER_OFF) { | |
5703 | pci_wake_from_d3(pdev, wake); | |
5704 | pci_set_power_state(pdev, PCI_D3hot); | |
5705 | } | |
b3c8b4ba AD |
5706 | } |
5707 | ||
9a799d71 AK |
5708 | /** |
5709 | * ixgbe_update_stats - Update the board statistics counters. | |
5710 | * @adapter: board private structure | |
5711 | **/ | |
5712 | void ixgbe_update_stats(struct ixgbe_adapter *adapter) | |
5713 | { | |
2d86f139 | 5714 | struct net_device *netdev = adapter->netdev; |
9a799d71 | 5715 | struct ixgbe_hw *hw = &adapter->hw; |
5b7da515 | 5716 | struct ixgbe_hw_stats *hwstats = &adapter->stats; |
6f11eef7 AV |
5717 | u64 total_mpc = 0; |
5718 | u32 i, missed_rx = 0, mpc, bprc, lxon, lxoff, xon_off_tot; | |
5b7da515 AD |
5719 | u64 non_eop_descs = 0, restart_queue = 0, tx_busy = 0; |
5720 | u64 alloc_rx_page_failed = 0, alloc_rx_buff_failed = 0; | |
8a0da21b | 5721 | u64 bytes = 0, packets = 0, hw_csum_rx_error = 0; |
9a799d71 | 5722 | |
d08935c2 DS |
5723 | if (test_bit(__IXGBE_DOWN, &adapter->state) || |
5724 | test_bit(__IXGBE_RESETTING, &adapter->state)) | |
5725 | return; | |
5726 | ||
94b982b2 | 5727 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) { |
f8212f97 | 5728 | u64 rsc_count = 0; |
94b982b2 | 5729 | u64 rsc_flush = 0; |
94b982b2 | 5730 | for (i = 0; i < adapter->num_rx_queues; i++) { |
5b7da515 AD |
5731 | rsc_count += adapter->rx_ring[i]->rx_stats.rsc_count; |
5732 | rsc_flush += adapter->rx_ring[i]->rx_stats.rsc_flush; | |
94b982b2 MC |
5733 | } |
5734 | adapter->rsc_total_count = rsc_count; | |
5735 | adapter->rsc_total_flush = rsc_flush; | |
d51019a4 PW |
5736 | } |
5737 | ||
5b7da515 AD |
5738 | for (i = 0; i < adapter->num_rx_queues; i++) { |
5739 | struct ixgbe_ring *rx_ring = adapter->rx_ring[i]; | |
5740 | non_eop_descs += rx_ring->rx_stats.non_eop_descs; | |
5741 | alloc_rx_page_failed += rx_ring->rx_stats.alloc_rx_page_failed; | |
5742 | alloc_rx_buff_failed += rx_ring->rx_stats.alloc_rx_buff_failed; | |
8a0da21b | 5743 | hw_csum_rx_error += rx_ring->rx_stats.csum_err; |
5b7da515 AD |
5744 | bytes += rx_ring->stats.bytes; |
5745 | packets += rx_ring->stats.packets; | |
5746 | } | |
5747 | adapter->non_eop_descs = non_eop_descs; | |
5748 | adapter->alloc_rx_page_failed = alloc_rx_page_failed; | |
5749 | adapter->alloc_rx_buff_failed = alloc_rx_buff_failed; | |
8a0da21b | 5750 | adapter->hw_csum_rx_error = hw_csum_rx_error; |
5b7da515 AD |
5751 | netdev->stats.rx_bytes = bytes; |
5752 | netdev->stats.rx_packets = packets; | |
5753 | ||
5754 | bytes = 0; | |
5755 | packets = 0; | |
7ca3bc58 | 5756 | /* gather some stats to the adapter struct that are per queue */ |
5b7da515 AD |
5757 | for (i = 0; i < adapter->num_tx_queues; i++) { |
5758 | struct ixgbe_ring *tx_ring = adapter->tx_ring[i]; | |
5759 | restart_queue += tx_ring->tx_stats.restart_queue; | |
5760 | tx_busy += tx_ring->tx_stats.tx_busy; | |
5761 | bytes += tx_ring->stats.bytes; | |
5762 | packets += tx_ring->stats.packets; | |
5763 | } | |
eb985f09 | 5764 | adapter->restart_queue = restart_queue; |
5b7da515 AD |
5765 | adapter->tx_busy = tx_busy; |
5766 | netdev->stats.tx_bytes = bytes; | |
5767 | netdev->stats.tx_packets = packets; | |
7ca3bc58 | 5768 | |
7ca647bd | 5769 | hwstats->crcerrs += IXGBE_READ_REG(hw, IXGBE_CRCERRS); |
1a70db4b ET |
5770 | |
5771 | /* 8 register reads */ | |
6f11eef7 AV |
5772 | for (i = 0; i < 8; i++) { |
5773 | /* for packet buffers not used, the register should read 0 */ | |
5774 | mpc = IXGBE_READ_REG(hw, IXGBE_MPC(i)); | |
5775 | missed_rx += mpc; | |
7ca647bd JP |
5776 | hwstats->mpc[i] += mpc; |
5777 | total_mpc += hwstats->mpc[i]; | |
1a70db4b ET |
5778 | hwstats->pxontxc[i] += IXGBE_READ_REG(hw, IXGBE_PXONTXC(i)); |
5779 | hwstats->pxofftxc[i] += IXGBE_READ_REG(hw, IXGBE_PXOFFTXC(i)); | |
bd508178 AD |
5780 | switch (hw->mac.type) { |
5781 | case ixgbe_mac_82598EB: | |
1a70db4b ET |
5782 | hwstats->rnbc[i] += IXGBE_READ_REG(hw, IXGBE_RNBC(i)); |
5783 | hwstats->qbtc[i] += IXGBE_READ_REG(hw, IXGBE_QBTC(i)); | |
5784 | hwstats->qbrc[i] += IXGBE_READ_REG(hw, IXGBE_QBRC(i)); | |
7ca647bd JP |
5785 | hwstats->pxonrxc[i] += |
5786 | IXGBE_READ_REG(hw, IXGBE_PXONRXC(i)); | |
bd508178 AD |
5787 | break; |
5788 | case ixgbe_mac_82599EB: | |
b93a2226 | 5789 | case ixgbe_mac_X540: |
bd508178 AD |
5790 | hwstats->pxonrxc[i] += |
5791 | IXGBE_READ_REG(hw, IXGBE_PXONRXCNT(i)); | |
bd508178 AD |
5792 | break; |
5793 | default: | |
5794 | break; | |
e8e26350 | 5795 | } |
6f11eef7 | 5796 | } |
1a70db4b ET |
5797 | |
5798 | /*16 register reads */ | |
5799 | for (i = 0; i < 16; i++) { | |
5800 | hwstats->qptc[i] += IXGBE_READ_REG(hw, IXGBE_QPTC(i)); | |
5801 | hwstats->qprc[i] += IXGBE_READ_REG(hw, IXGBE_QPRC(i)); | |
5802 | if ((hw->mac.type == ixgbe_mac_82599EB) || | |
5803 | (hw->mac.type == ixgbe_mac_X540)) { | |
5804 | hwstats->qbtc[i] += IXGBE_READ_REG(hw, IXGBE_QBTC_L(i)); | |
5805 | IXGBE_READ_REG(hw, IXGBE_QBTC_H(i)); /* to clear */ | |
5806 | hwstats->qbrc[i] += IXGBE_READ_REG(hw, IXGBE_QBRC_L(i)); | |
5807 | IXGBE_READ_REG(hw, IXGBE_QBRC_H(i)); /* to clear */ | |
5808 | } | |
5809 | } | |
5810 | ||
7ca647bd | 5811 | hwstats->gprc += IXGBE_READ_REG(hw, IXGBE_GPRC); |
6f11eef7 | 5812 | /* work around hardware counting issue */ |
7ca647bd | 5813 | hwstats->gprc -= missed_rx; |
6f11eef7 | 5814 | |
c84d324c JF |
5815 | ixgbe_update_xoff_received(adapter); |
5816 | ||
6f11eef7 | 5817 | /* 82598 hardware only has a 32 bit counter in the high register */ |
bd508178 AD |
5818 | switch (hw->mac.type) { |
5819 | case ixgbe_mac_82598EB: | |
5820 | hwstats->lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXC); | |
bd508178 AD |
5821 | hwstats->gorc += IXGBE_READ_REG(hw, IXGBE_GORCH); |
5822 | hwstats->gotc += IXGBE_READ_REG(hw, IXGBE_GOTCH); | |
5823 | hwstats->tor += IXGBE_READ_REG(hw, IXGBE_TORH); | |
5824 | break; | |
b93a2226 | 5825 | case ixgbe_mac_X540: |
58f6bcf9 ET |
5826 | /* OS2BMC stats are X540 only*/ |
5827 | hwstats->o2bgptc += IXGBE_READ_REG(hw, IXGBE_O2BGPTC); | |
5828 | hwstats->o2bspc += IXGBE_READ_REG(hw, IXGBE_O2BSPC); | |
5829 | hwstats->b2ospc += IXGBE_READ_REG(hw, IXGBE_B2OSPC); | |
5830 | hwstats->b2ogprc += IXGBE_READ_REG(hw, IXGBE_B2OGPRC); | |
5831 | case ixgbe_mac_82599EB: | |
a4d4f629 AD |
5832 | for (i = 0; i < 16; i++) |
5833 | adapter->hw_rx_no_dma_resources += | |
5834 | IXGBE_READ_REG(hw, IXGBE_QPRDC(i)); | |
7ca647bd | 5835 | hwstats->gorc += IXGBE_READ_REG(hw, IXGBE_GORCL); |
bd508178 | 5836 | IXGBE_READ_REG(hw, IXGBE_GORCH); /* to clear */ |
7ca647bd | 5837 | hwstats->gotc += IXGBE_READ_REG(hw, IXGBE_GOTCL); |
bd508178 | 5838 | IXGBE_READ_REG(hw, IXGBE_GOTCH); /* to clear */ |
7ca647bd | 5839 | hwstats->tor += IXGBE_READ_REG(hw, IXGBE_TORL); |
bd508178 | 5840 | IXGBE_READ_REG(hw, IXGBE_TORH); /* to clear */ |
7ca647bd | 5841 | hwstats->lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXCNT); |
7ca647bd JP |
5842 | hwstats->fdirmatch += IXGBE_READ_REG(hw, IXGBE_FDIRMATCH); |
5843 | hwstats->fdirmiss += IXGBE_READ_REG(hw, IXGBE_FDIRMISS); | |
6d45522c | 5844 | #ifdef IXGBE_FCOE |
7ca647bd JP |
5845 | hwstats->fccrc += IXGBE_READ_REG(hw, IXGBE_FCCRC); |
5846 | hwstats->fcoerpdc += IXGBE_READ_REG(hw, IXGBE_FCOERPDC); | |
5847 | hwstats->fcoeprc += IXGBE_READ_REG(hw, IXGBE_FCOEPRC); | |
5848 | hwstats->fcoeptc += IXGBE_READ_REG(hw, IXGBE_FCOEPTC); | |
5849 | hwstats->fcoedwrc += IXGBE_READ_REG(hw, IXGBE_FCOEDWRC); | |
5850 | hwstats->fcoedwtc += IXGBE_READ_REG(hw, IXGBE_FCOEDWTC); | |
7b859ebc | 5851 | /* Add up per cpu counters for total ddp aloc fail */ |
5a1ee270 AD |
5852 | if (adapter->fcoe.ddp_pool) { |
5853 | struct ixgbe_fcoe *fcoe = &adapter->fcoe; | |
5854 | struct ixgbe_fcoe_ddp_pool *ddp_pool; | |
5855 | unsigned int cpu; | |
5856 | u64 noddp = 0, noddp_ext_buff = 0; | |
7b859ebc | 5857 | for_each_possible_cpu(cpu) { |
5a1ee270 AD |
5858 | ddp_pool = per_cpu_ptr(fcoe->ddp_pool, cpu); |
5859 | noddp += ddp_pool->noddp; | |
5860 | noddp_ext_buff += ddp_pool->noddp_ext_buff; | |
7b859ebc | 5861 | } |
5a1ee270 AD |
5862 | hwstats->fcoe_noddp = noddp; |
5863 | hwstats->fcoe_noddp_ext_buff = noddp_ext_buff; | |
7b859ebc | 5864 | } |
6d45522c | 5865 | #endif /* IXGBE_FCOE */ |
bd508178 AD |
5866 | break; |
5867 | default: | |
5868 | break; | |
e8e26350 | 5869 | } |
9a799d71 | 5870 | bprc = IXGBE_READ_REG(hw, IXGBE_BPRC); |
7ca647bd JP |
5871 | hwstats->bprc += bprc; |
5872 | hwstats->mprc += IXGBE_READ_REG(hw, IXGBE_MPRC); | |
e8e26350 | 5873 | if (hw->mac.type == ixgbe_mac_82598EB) |
7ca647bd JP |
5874 | hwstats->mprc -= bprc; |
5875 | hwstats->roc += IXGBE_READ_REG(hw, IXGBE_ROC); | |
5876 | hwstats->prc64 += IXGBE_READ_REG(hw, IXGBE_PRC64); | |
5877 | hwstats->prc127 += IXGBE_READ_REG(hw, IXGBE_PRC127); | |
5878 | hwstats->prc255 += IXGBE_READ_REG(hw, IXGBE_PRC255); | |
5879 | hwstats->prc511 += IXGBE_READ_REG(hw, IXGBE_PRC511); | |
5880 | hwstats->prc1023 += IXGBE_READ_REG(hw, IXGBE_PRC1023); | |
5881 | hwstats->prc1522 += IXGBE_READ_REG(hw, IXGBE_PRC1522); | |
5882 | hwstats->rlec += IXGBE_READ_REG(hw, IXGBE_RLEC); | |
6f11eef7 | 5883 | lxon = IXGBE_READ_REG(hw, IXGBE_LXONTXC); |
7ca647bd | 5884 | hwstats->lxontxc += lxon; |
6f11eef7 | 5885 | lxoff = IXGBE_READ_REG(hw, IXGBE_LXOFFTXC); |
7ca647bd | 5886 | hwstats->lxofftxc += lxoff; |
7ca647bd JP |
5887 | hwstats->gptc += IXGBE_READ_REG(hw, IXGBE_GPTC); |
5888 | hwstats->mptc += IXGBE_READ_REG(hw, IXGBE_MPTC); | |
6f11eef7 AV |
5889 | /* |
5890 | * 82598 errata - tx of flow control packets is included in tx counters | |
5891 | */ | |
5892 | xon_off_tot = lxon + lxoff; | |
7ca647bd JP |
5893 | hwstats->gptc -= xon_off_tot; |
5894 | hwstats->mptc -= xon_off_tot; | |
5895 | hwstats->gotc -= (xon_off_tot * (ETH_ZLEN + ETH_FCS_LEN)); | |
5896 | hwstats->ruc += IXGBE_READ_REG(hw, IXGBE_RUC); | |
5897 | hwstats->rfc += IXGBE_READ_REG(hw, IXGBE_RFC); | |
5898 | hwstats->rjc += IXGBE_READ_REG(hw, IXGBE_RJC); | |
5899 | hwstats->tpr += IXGBE_READ_REG(hw, IXGBE_TPR); | |
5900 | hwstats->ptc64 += IXGBE_READ_REG(hw, IXGBE_PTC64); | |
5901 | hwstats->ptc64 -= xon_off_tot; | |
5902 | hwstats->ptc127 += IXGBE_READ_REG(hw, IXGBE_PTC127); | |
5903 | hwstats->ptc255 += IXGBE_READ_REG(hw, IXGBE_PTC255); | |
5904 | hwstats->ptc511 += IXGBE_READ_REG(hw, IXGBE_PTC511); | |
5905 | hwstats->ptc1023 += IXGBE_READ_REG(hw, IXGBE_PTC1023); | |
5906 | hwstats->ptc1522 += IXGBE_READ_REG(hw, IXGBE_PTC1522); | |
5907 | hwstats->bptc += IXGBE_READ_REG(hw, IXGBE_BPTC); | |
9a799d71 AK |
5908 | |
5909 | /* Fill out the OS statistics structure */ | |
7ca647bd | 5910 | netdev->stats.multicast = hwstats->mprc; |
9a799d71 AK |
5911 | |
5912 | /* Rx Errors */ | |
7ca647bd | 5913 | netdev->stats.rx_errors = hwstats->crcerrs + hwstats->rlec; |
2d86f139 | 5914 | netdev->stats.rx_dropped = 0; |
7ca647bd JP |
5915 | netdev->stats.rx_length_errors = hwstats->rlec; |
5916 | netdev->stats.rx_crc_errors = hwstats->crcerrs; | |
2d86f139 | 5917 | netdev->stats.rx_missed_errors = total_mpc; |
9a799d71 AK |
5918 | } |
5919 | ||
5920 | /** | |
d034acf1 | 5921 | * ixgbe_fdir_reinit_subtask - worker thread to reinit FDIR filter table |
49ce9c2c | 5922 | * @adapter: pointer to the device adapter structure |
9a799d71 | 5923 | **/ |
d034acf1 | 5924 | static void ixgbe_fdir_reinit_subtask(struct ixgbe_adapter *adapter) |
9a799d71 | 5925 | { |
cf8280ee | 5926 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a | 5927 | int i; |
cf8280ee | 5928 | |
d034acf1 AD |
5929 | if (!(adapter->flags2 & IXGBE_FLAG2_FDIR_REQUIRES_REINIT)) |
5930 | return; | |
5931 | ||
5932 | adapter->flags2 &= ~IXGBE_FLAG2_FDIR_REQUIRES_REINIT; | |
22d5a71b | 5933 | |
d034acf1 | 5934 | /* if interface is down do nothing */ |
fe49f04a | 5935 | if (test_bit(__IXGBE_DOWN, &adapter->state)) |
d034acf1 AD |
5936 | return; |
5937 | ||
5938 | /* do nothing if we are not using signature filters */ | |
5939 | if (!(adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE)) | |
5940 | return; | |
5941 | ||
5942 | adapter->fdir_overflow++; | |
5943 | ||
93c52dd0 AD |
5944 | if (ixgbe_reinit_fdir_tables_82599(hw) == 0) { |
5945 | for (i = 0; i < adapter->num_tx_queues; i++) | |
5946 | set_bit(__IXGBE_TX_FDIR_INIT_DONE, | |
f0f9778d | 5947 | &(adapter->tx_ring[i]->state)); |
d034acf1 AD |
5948 | /* re-enable flow director interrupts */ |
5949 | IXGBE_WRITE_REG(hw, IXGBE_EIMS, IXGBE_EIMS_FLOW_DIR); | |
93c52dd0 AD |
5950 | } else { |
5951 | e_err(probe, "failed to finish FDIR re-initialization, " | |
5952 | "ignored adding FDIR ATR filters\n"); | |
5953 | } | |
93c52dd0 AD |
5954 | } |
5955 | ||
5956 | /** | |
5957 | * ixgbe_check_hang_subtask - check for hung queues and dropped interrupts | |
49ce9c2c | 5958 | * @adapter: pointer to the device adapter structure |
93c52dd0 AD |
5959 | * |
5960 | * This function serves two purposes. First it strobes the interrupt lines | |
52f33af8 | 5961 | * in order to make certain interrupts are occurring. Secondly it sets the |
93c52dd0 | 5962 | * bits needed to check for TX hangs. As a result we should immediately |
52f33af8 | 5963 | * determine if a hang has occurred. |
93c52dd0 AD |
5964 | */ |
5965 | static void ixgbe_check_hang_subtask(struct ixgbe_adapter *adapter) | |
9a799d71 | 5966 | { |
cf8280ee | 5967 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a AD |
5968 | u64 eics = 0; |
5969 | int i; | |
cf8280ee | 5970 | |
09f40aed | 5971 | /* If we're down, removing or resetting, just bail */ |
93c52dd0 | 5972 | if (test_bit(__IXGBE_DOWN, &adapter->state) || |
09f40aed | 5973 | test_bit(__IXGBE_REMOVING, &adapter->state) || |
93c52dd0 AD |
5974 | test_bit(__IXGBE_RESETTING, &adapter->state)) |
5975 | return; | |
22d5a71b | 5976 | |
93c52dd0 AD |
5977 | /* Force detection of hung controller */ |
5978 | if (netif_carrier_ok(adapter->netdev)) { | |
5979 | for (i = 0; i < adapter->num_tx_queues; i++) | |
5980 | set_check_for_tx_hang(adapter->tx_ring[i]); | |
5981 | } | |
22d5a71b | 5982 | |
fe49f04a AD |
5983 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) { |
5984 | /* | |
5985 | * for legacy and MSI interrupts don't set any bits | |
5986 | * that are enabled for EIAM, because this operation | |
5987 | * would set *both* EIMS and EICS for any bit in EIAM | |
5988 | */ | |
5989 | IXGBE_WRITE_REG(hw, IXGBE_EICS, | |
5990 | (IXGBE_EICS_TCP_TIMER | IXGBE_EICS_OTHER)); | |
93c52dd0 AD |
5991 | } else { |
5992 | /* get one bit for every active tx/rx interrupt vector */ | |
49c7ffbe | 5993 | for (i = 0; i < adapter->num_q_vectors; i++) { |
93c52dd0 | 5994 | struct ixgbe_q_vector *qv = adapter->q_vector[i]; |
efe3d3c8 | 5995 | if (qv->rx.ring || qv->tx.ring) |
93c52dd0 AD |
5996 | eics |= ((u64)1 << i); |
5997 | } | |
cf8280ee | 5998 | } |
9a799d71 | 5999 | |
93c52dd0 | 6000 | /* Cause software interrupt to ensure rings are cleaned */ |
fe49f04a AD |
6001 | ixgbe_irq_rearm_queues(adapter, eics); |
6002 | ||
cf8280ee JB |
6003 | } |
6004 | ||
e8e26350 | 6005 | /** |
93c52dd0 | 6006 | * ixgbe_watchdog_update_link - update the link status |
49ce9c2c BH |
6007 | * @adapter: pointer to the device adapter structure |
6008 | * @link_speed: pointer to a u32 to store the link_speed | |
e8e26350 | 6009 | **/ |
93c52dd0 | 6010 | static void ixgbe_watchdog_update_link(struct ixgbe_adapter *adapter) |
e8e26350 | 6011 | { |
e8e26350 | 6012 | struct ixgbe_hw *hw = &adapter->hw; |
93c52dd0 AD |
6013 | u32 link_speed = adapter->link_speed; |
6014 | bool link_up = adapter->link_up; | |
041441d0 | 6015 | bool pfc_en = adapter->dcb_cfg.pfc_mode_enable; |
e8e26350 | 6016 | |
93c52dd0 AD |
6017 | if (!(adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE)) |
6018 | return; | |
6019 | ||
6020 | if (hw->mac.ops.check_link) { | |
6021 | hw->mac.ops.check_link(hw, &link_speed, &link_up, false); | |
c4cf55e5 | 6022 | } else { |
93c52dd0 AD |
6023 | /* always assume link is up, if no check link function */ |
6024 | link_speed = IXGBE_LINK_SPEED_10GB_FULL; | |
6025 | link_up = true; | |
c4cf55e5 | 6026 | } |
041441d0 AD |
6027 | |
6028 | if (adapter->ixgbe_ieee_pfc) | |
6029 | pfc_en |= !!(adapter->ixgbe_ieee_pfc->pfc_en); | |
6030 | ||
3ebe8fde | 6031 | if (link_up && !((adapter->flags & IXGBE_FLAG_DCB_ENABLED) && pfc_en)) { |
041441d0 | 6032 | hw->mac.ops.fc_enable(hw); |
3ebe8fde AD |
6033 | ixgbe_set_rx_drop_en(adapter); |
6034 | } | |
93c52dd0 AD |
6035 | |
6036 | if (link_up || | |
6037 | time_after(jiffies, (adapter->link_check_timeout + | |
6038 | IXGBE_TRY_LINK_TIMEOUT))) { | |
6039 | adapter->flags &= ~IXGBE_FLAG_NEED_LINK_UPDATE; | |
6040 | IXGBE_WRITE_REG(hw, IXGBE_EIMS, IXGBE_EIMC_LSC); | |
6041 | IXGBE_WRITE_FLUSH(hw); | |
6042 | } | |
6043 | ||
6044 | adapter->link_up = link_up; | |
6045 | adapter->link_speed = link_speed; | |
e8e26350 PW |
6046 | } |
6047 | ||
107d3018 AD |
6048 | static void ixgbe_update_default_up(struct ixgbe_adapter *adapter) |
6049 | { | |
6050 | #ifdef CONFIG_IXGBE_DCB | |
6051 | struct net_device *netdev = adapter->netdev; | |
6052 | struct dcb_app app = { | |
6053 | .selector = IEEE_8021QAZ_APP_SEL_ETHERTYPE, | |
6054 | .protocol = 0, | |
6055 | }; | |
6056 | u8 up = 0; | |
6057 | ||
6058 | if (adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE) | |
6059 | up = dcb_ieee_getapp_mask(netdev, &app); | |
6060 | ||
6061 | adapter->default_up = (up > 1) ? (ffs(up) - 1) : 0; | |
6062 | #endif | |
6063 | } | |
6064 | ||
e8e26350 | 6065 | /** |
93c52dd0 AD |
6066 | * ixgbe_watchdog_link_is_up - update netif_carrier status and |
6067 | * print link up message | |
49ce9c2c | 6068 | * @adapter: pointer to the device adapter structure |
e8e26350 | 6069 | **/ |
93c52dd0 | 6070 | static void ixgbe_watchdog_link_is_up(struct ixgbe_adapter *adapter) |
e8e26350 | 6071 | { |
93c52dd0 | 6072 | struct net_device *netdev = adapter->netdev; |
e8e26350 | 6073 | struct ixgbe_hw *hw = &adapter->hw; |
cdc04dcc ET |
6074 | struct net_device *upper; |
6075 | struct list_head *iter; | |
93c52dd0 AD |
6076 | u32 link_speed = adapter->link_speed; |
6077 | bool flow_rx, flow_tx; | |
e8e26350 | 6078 | |
93c52dd0 AD |
6079 | /* only continue if link was previously down */ |
6080 | if (netif_carrier_ok(netdev)) | |
a985b6c3 | 6081 | return; |
63d6e1d8 | 6082 | |
93c52dd0 | 6083 | adapter->flags2 &= ~IXGBE_FLAG2_SEARCH_FOR_SFP; |
63d6e1d8 | 6084 | |
93c52dd0 AD |
6085 | switch (hw->mac.type) { |
6086 | case ixgbe_mac_82598EB: { | |
6087 | u32 frctl = IXGBE_READ_REG(hw, IXGBE_FCTRL); | |
6088 | u32 rmcs = IXGBE_READ_REG(hw, IXGBE_RMCS); | |
6089 | flow_rx = !!(frctl & IXGBE_FCTRL_RFCE); | |
6090 | flow_tx = !!(rmcs & IXGBE_RMCS_TFCE_802_3X); | |
6091 | } | |
6092 | break; | |
6093 | case ixgbe_mac_X540: | |
6094 | case ixgbe_mac_82599EB: { | |
6095 | u32 mflcn = IXGBE_READ_REG(hw, IXGBE_MFLCN); | |
6096 | u32 fccfg = IXGBE_READ_REG(hw, IXGBE_FCCFG); | |
6097 | flow_rx = !!(mflcn & IXGBE_MFLCN_RFCE); | |
6098 | flow_tx = !!(fccfg & IXGBE_FCCFG_TFCE_802_3X); | |
6099 | } | |
6100 | break; | |
6101 | default: | |
6102 | flow_tx = false; | |
6103 | flow_rx = false; | |
6104 | break; | |
e8e26350 | 6105 | } |
3a6a4eda | 6106 | |
6cb562d6 JK |
6107 | adapter->last_rx_ptp_check = jiffies; |
6108 | ||
8fecf67c | 6109 | if (test_bit(__IXGBE_PTP_RUNNING, &adapter->state)) |
1a71ab24 | 6110 | ixgbe_ptp_start_cyclecounter(adapter); |
3a6a4eda | 6111 | |
93c52dd0 AD |
6112 | e_info(drv, "NIC Link is Up %s, Flow Control: %s\n", |
6113 | (link_speed == IXGBE_LINK_SPEED_10GB_FULL ? | |
6114 | "10 Gbps" : | |
6115 | (link_speed == IXGBE_LINK_SPEED_1GB_FULL ? | |
6116 | "1 Gbps" : | |
6117 | (link_speed == IXGBE_LINK_SPEED_100_FULL ? | |
6118 | "100 Mbps" : | |
6119 | "unknown speed"))), | |
6120 | ((flow_rx && flow_tx) ? "RX/TX" : | |
6121 | (flow_rx ? "RX" : | |
6122 | (flow_tx ? "TX" : "None")))); | |
e8e26350 | 6123 | |
93c52dd0 | 6124 | netif_carrier_on(netdev); |
93c52dd0 | 6125 | ixgbe_check_vf_rate_limit(adapter); |
befa2af7 | 6126 | |
cdc04dcc ET |
6127 | /* enable transmits */ |
6128 | netif_tx_wake_all_queues(adapter->netdev); | |
6129 | ||
6130 | /* enable any upper devices */ | |
6131 | rtnl_lock(); | |
6132 | netdev_for_each_all_upper_dev_rcu(adapter->netdev, upper, iter) { | |
6133 | if (netif_is_macvlan(upper)) { | |
6134 | struct macvlan_dev *vlan = netdev_priv(upper); | |
6135 | ||
6136 | if (vlan->fwd_priv) | |
6137 | netif_tx_wake_all_queues(upper); | |
6138 | } | |
6139 | } | |
6140 | rtnl_unlock(); | |
6141 | ||
107d3018 AD |
6142 | /* update the default user priority for VFs */ |
6143 | ixgbe_update_default_up(adapter); | |
6144 | ||
befa2af7 AD |
6145 | /* ping all the active vfs to let them know link has changed */ |
6146 | ixgbe_ping_all_vfs(adapter); | |
e8e26350 PW |
6147 | } |
6148 | ||
c4cf55e5 | 6149 | /** |
93c52dd0 AD |
6150 | * ixgbe_watchdog_link_is_down - update netif_carrier status and |
6151 | * print link down message | |
49ce9c2c | 6152 | * @adapter: pointer to the adapter structure |
c4cf55e5 | 6153 | **/ |
581330ba | 6154 | static void ixgbe_watchdog_link_is_down(struct ixgbe_adapter *adapter) |
c4cf55e5 | 6155 | { |
cf8280ee | 6156 | struct net_device *netdev = adapter->netdev; |
c4cf55e5 | 6157 | struct ixgbe_hw *hw = &adapter->hw; |
10eec955 | 6158 | |
93c52dd0 AD |
6159 | adapter->link_up = false; |
6160 | adapter->link_speed = 0; | |
cf8280ee | 6161 | |
93c52dd0 AD |
6162 | /* only continue if link was up previously */ |
6163 | if (!netif_carrier_ok(netdev)) | |
6164 | return; | |
264857b8 | 6165 | |
93c52dd0 AD |
6166 | /* poll for SFP+ cable when link is down */ |
6167 | if (ixgbe_is_sfp(hw) && hw->mac.type == ixgbe_mac_82598EB) | |
6168 | adapter->flags2 |= IXGBE_FLAG2_SEARCH_FOR_SFP; | |
9a799d71 | 6169 | |
8fecf67c | 6170 | if (test_bit(__IXGBE_PTP_RUNNING, &adapter->state)) |
1a71ab24 | 6171 | ixgbe_ptp_start_cyclecounter(adapter); |
3a6a4eda | 6172 | |
93c52dd0 AD |
6173 | e_info(drv, "NIC Link is Down\n"); |
6174 | netif_carrier_off(netdev); | |
befa2af7 AD |
6175 | |
6176 | /* ping all the active vfs to let them know link has changed */ | |
6177 | ixgbe_ping_all_vfs(adapter); | |
93c52dd0 | 6178 | } |
e8e26350 | 6179 | |
93c52dd0 AD |
6180 | /** |
6181 | * ixgbe_watchdog_flush_tx - flush queues on link down | |
49ce9c2c | 6182 | * @adapter: pointer to the device adapter structure |
93c52dd0 AD |
6183 | **/ |
6184 | static void ixgbe_watchdog_flush_tx(struct ixgbe_adapter *adapter) | |
6185 | { | |
c4cf55e5 | 6186 | int i; |
93c52dd0 | 6187 | int some_tx_pending = 0; |
c4cf55e5 | 6188 | |
93c52dd0 | 6189 | if (!netif_carrier_ok(adapter->netdev)) { |
bc59fcda | 6190 | for (i = 0; i < adapter->num_tx_queues; i++) { |
93c52dd0 | 6191 | struct ixgbe_ring *tx_ring = adapter->tx_ring[i]; |
bc59fcda NS |
6192 | if (tx_ring->next_to_use != tx_ring->next_to_clean) { |
6193 | some_tx_pending = 1; | |
6194 | break; | |
6195 | } | |
6196 | } | |
6197 | ||
6198 | if (some_tx_pending) { | |
6199 | /* We've lost link, so the controller stops DMA, | |
6200 | * but we've got queued Tx work that's never going | |
6201 | * to get done, so reset controller to flush Tx. | |
6202 | * (Do the reset outside of interrupt context). | |
6203 | */ | |
12ff3f3b | 6204 | e_warn(drv, "initiating reset to clear Tx work after link loss\n"); |
c83c6cbd | 6205 | adapter->flags2 |= IXGBE_FLAG2_RESET_REQUESTED; |
bc59fcda | 6206 | } |
c4cf55e5 | 6207 | } |
c4cf55e5 PWJ |
6208 | } |
6209 | ||
a985b6c3 GR |
6210 | static void ixgbe_spoof_check(struct ixgbe_adapter *adapter) |
6211 | { | |
6212 | u32 ssvpc; | |
6213 | ||
0584d999 GR |
6214 | /* Do not perform spoof check for 82598 or if not in IOV mode */ |
6215 | if (adapter->hw.mac.type == ixgbe_mac_82598EB || | |
6216 | adapter->num_vfs == 0) | |
a985b6c3 GR |
6217 | return; |
6218 | ||
6219 | ssvpc = IXGBE_READ_REG(&adapter->hw, IXGBE_SSVPC); | |
6220 | ||
6221 | /* | |
6222 | * ssvpc register is cleared on read, if zero then no | |
6223 | * spoofed packets in the last interval. | |
6224 | */ | |
6225 | if (!ssvpc) | |
6226 | return; | |
6227 | ||
d6ea0754 | 6228 | e_warn(drv, "%u Spoofed packets detected\n", ssvpc); |
a985b6c3 GR |
6229 | } |
6230 | ||
93c52dd0 AD |
6231 | /** |
6232 | * ixgbe_watchdog_subtask - check and bring link up | |
49ce9c2c | 6233 | * @adapter: pointer to the device adapter structure |
93c52dd0 AD |
6234 | **/ |
6235 | static void ixgbe_watchdog_subtask(struct ixgbe_adapter *adapter) | |
6236 | { | |
09f40aed | 6237 | /* if interface is down, removing or resetting, do nothing */ |
7edebf9a | 6238 | if (test_bit(__IXGBE_DOWN, &adapter->state) || |
09f40aed | 6239 | test_bit(__IXGBE_REMOVING, &adapter->state) || |
7edebf9a | 6240 | test_bit(__IXGBE_RESETTING, &adapter->state)) |
93c52dd0 AD |
6241 | return; |
6242 | ||
6243 | ixgbe_watchdog_update_link(adapter); | |
6244 | ||
6245 | if (adapter->link_up) | |
6246 | ixgbe_watchdog_link_is_up(adapter); | |
6247 | else | |
6248 | ixgbe_watchdog_link_is_down(adapter); | |
bc59fcda | 6249 | |
a985b6c3 | 6250 | ixgbe_spoof_check(adapter); |
9a799d71 | 6251 | ixgbe_update_stats(adapter); |
93c52dd0 AD |
6252 | |
6253 | ixgbe_watchdog_flush_tx(adapter); | |
9a799d71 | 6254 | } |
10eec955 | 6255 | |
cf8280ee | 6256 | /** |
7086400d | 6257 | * ixgbe_sfp_detection_subtask - poll for SFP+ cable |
49ce9c2c | 6258 | * @adapter: the ixgbe adapter structure |
cf8280ee | 6259 | **/ |
7086400d | 6260 | static void ixgbe_sfp_detection_subtask(struct ixgbe_adapter *adapter) |
cf8280ee | 6261 | { |
cf8280ee | 6262 | struct ixgbe_hw *hw = &adapter->hw; |
7086400d | 6263 | s32 err; |
cf8280ee | 6264 | |
7086400d AD |
6265 | /* not searching for SFP so there is nothing to do here */ |
6266 | if (!(adapter->flags2 & IXGBE_FLAG2_SEARCH_FOR_SFP) && | |
6267 | !(adapter->flags2 & IXGBE_FLAG2_SFP_NEEDS_RESET)) | |
6268 | return; | |
10eec955 | 6269 | |
7086400d AD |
6270 | /* someone else is in init, wait until next service event */ |
6271 | if (test_and_set_bit(__IXGBE_IN_SFP_INIT, &adapter->state)) | |
6272 | return; | |
cf8280ee | 6273 | |
7086400d AD |
6274 | err = hw->phy.ops.identify_sfp(hw); |
6275 | if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) | |
6276 | goto sfp_out; | |
264857b8 | 6277 | |
7086400d AD |
6278 | if (err == IXGBE_ERR_SFP_NOT_PRESENT) { |
6279 | /* If no cable is present, then we need to reset | |
6280 | * the next time we find a good cable. */ | |
6281 | adapter->flags2 |= IXGBE_FLAG2_SFP_NEEDS_RESET; | |
cf8280ee | 6282 | } |
9a799d71 | 6283 | |
7086400d AD |
6284 | /* exit on error */ |
6285 | if (err) | |
6286 | goto sfp_out; | |
e8e26350 | 6287 | |
7086400d AD |
6288 | /* exit if reset not needed */ |
6289 | if (!(adapter->flags2 & IXGBE_FLAG2_SFP_NEEDS_RESET)) | |
6290 | goto sfp_out; | |
9a799d71 | 6291 | |
7086400d | 6292 | adapter->flags2 &= ~IXGBE_FLAG2_SFP_NEEDS_RESET; |
bc59fcda | 6293 | |
7086400d AD |
6294 | /* |
6295 | * A module may be identified correctly, but the EEPROM may not have | |
6296 | * support for that module. setup_sfp() will fail in that case, so | |
6297 | * we should not allow that module to load. | |
6298 | */ | |
6299 | if (hw->mac.type == ixgbe_mac_82598EB) | |
6300 | err = hw->phy.ops.reset(hw); | |
6301 | else | |
6302 | err = hw->mac.ops.setup_sfp(hw); | |
6303 | ||
6304 | if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) | |
6305 | goto sfp_out; | |
6306 | ||
6307 | adapter->flags |= IXGBE_FLAG_NEED_LINK_CONFIG; | |
6308 | e_info(probe, "detected SFP+: %d\n", hw->phy.sfp_type); | |
6309 | ||
6310 | sfp_out: | |
6311 | clear_bit(__IXGBE_IN_SFP_INIT, &adapter->state); | |
6312 | ||
6313 | if ((err == IXGBE_ERR_SFP_NOT_SUPPORTED) && | |
6314 | (adapter->netdev->reg_state == NETREG_REGISTERED)) { | |
6315 | e_dev_err("failed to initialize because an unsupported " | |
6316 | "SFP+ module type was detected.\n"); | |
6317 | e_dev_err("Reload the driver after installing a " | |
6318 | "supported module.\n"); | |
6319 | unregister_netdev(adapter->netdev); | |
bc59fcda | 6320 | } |
7086400d | 6321 | } |
bc59fcda | 6322 | |
7086400d AD |
6323 | /** |
6324 | * ixgbe_sfp_link_config_subtask - set up link SFP after module install | |
49ce9c2c | 6325 | * @adapter: the ixgbe adapter structure |
7086400d AD |
6326 | **/ |
6327 | static void ixgbe_sfp_link_config_subtask(struct ixgbe_adapter *adapter) | |
6328 | { | |
6329 | struct ixgbe_hw *hw = &adapter->hw; | |
3d292265 JH |
6330 | u32 speed; |
6331 | bool autoneg = false; | |
7086400d AD |
6332 | |
6333 | if (!(adapter->flags & IXGBE_FLAG_NEED_LINK_CONFIG)) | |
6334 | return; | |
6335 | ||
6336 | /* someone else is in init, wait until next service event */ | |
6337 | if (test_and_set_bit(__IXGBE_IN_SFP_INIT, &adapter->state)) | |
6338 | return; | |
6339 | ||
6340 | adapter->flags &= ~IXGBE_FLAG_NEED_LINK_CONFIG; | |
6341 | ||
3d292265 | 6342 | speed = hw->phy.autoneg_advertised; |
ed33ff66 | 6343 | if ((!speed) && (hw->mac.ops.get_link_capabilities)) { |
3d292265 | 6344 | hw->mac.ops.get_link_capabilities(hw, &speed, &autoneg); |
ed33ff66 ET |
6345 | |
6346 | /* setup the highest link when no autoneg */ | |
6347 | if (!autoneg) { | |
6348 | if (speed & IXGBE_LINK_SPEED_10GB_FULL) | |
6349 | speed = IXGBE_LINK_SPEED_10GB_FULL; | |
6350 | } | |
6351 | } | |
6352 | ||
7086400d | 6353 | if (hw->mac.ops.setup_link) |
fd0326f2 | 6354 | hw->mac.ops.setup_link(hw, speed, true); |
7086400d AD |
6355 | |
6356 | adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; | |
6357 | adapter->link_check_timeout = jiffies; | |
6358 | clear_bit(__IXGBE_IN_SFP_INIT, &adapter->state); | |
6359 | } | |
6360 | ||
83c61fa9 GR |
6361 | #ifdef CONFIG_PCI_IOV |
6362 | static void ixgbe_check_for_bad_vf(struct ixgbe_adapter *adapter) | |
6363 | { | |
6364 | int vf; | |
6365 | struct ixgbe_hw *hw = &adapter->hw; | |
6366 | struct net_device *netdev = adapter->netdev; | |
6367 | u32 gpc; | |
6368 | u32 ciaa, ciad; | |
6369 | ||
6370 | gpc = IXGBE_READ_REG(hw, IXGBE_TXDGPC); | |
6371 | if (gpc) /* If incrementing then no need for the check below */ | |
6372 | return; | |
6373 | /* | |
6374 | * Check to see if a bad DMA write target from an errant or | |
6375 | * malicious VF has caused a PCIe error. If so then we can | |
6376 | * issue a VFLR to the offending VF(s) and then resume without | |
6377 | * requesting a full slot reset. | |
6378 | */ | |
6379 | ||
6380 | for (vf = 0; vf < adapter->num_vfs; vf++) { | |
6381 | ciaa = (vf << 16) | 0x80000000; | |
6382 | /* 32 bit read so align, we really want status at offset 6 */ | |
6383 | ciaa |= PCI_COMMAND; | |
6384 | IXGBE_WRITE_REG(hw, IXGBE_CIAA_82599, ciaa); | |
6385 | ciad = IXGBE_READ_REG(hw, IXGBE_CIAD_82599); | |
6386 | ciaa &= 0x7FFFFFFF; | |
6387 | /* disable debug mode asap after reading data */ | |
6388 | IXGBE_WRITE_REG(hw, IXGBE_CIAA_82599, ciaa); | |
6389 | /* Get the upper 16 bits which will be the PCI status reg */ | |
6390 | ciad >>= 16; | |
6391 | if (ciad & PCI_STATUS_REC_MASTER_ABORT) { | |
6392 | netdev_err(netdev, "VF %d Hung DMA\n", vf); | |
6393 | /* Issue VFLR */ | |
6394 | ciaa = (vf << 16) | 0x80000000; | |
6395 | ciaa |= 0xA8; | |
6396 | IXGBE_WRITE_REG(hw, IXGBE_CIAA_82599, ciaa); | |
6397 | ciad = 0x00008000; /* VFLR */ | |
6398 | IXGBE_WRITE_REG(hw, IXGBE_CIAD_82599, ciad); | |
6399 | ciaa &= 0x7FFFFFFF; | |
6400 | IXGBE_WRITE_REG(hw, IXGBE_CIAA_82599, ciaa); | |
6401 | } | |
6402 | } | |
6403 | } | |
6404 | ||
6405 | #endif | |
7086400d AD |
6406 | /** |
6407 | * ixgbe_service_timer - Timer Call-back | |
6408 | * @data: pointer to adapter cast into an unsigned long | |
6409 | **/ | |
6410 | static void ixgbe_service_timer(unsigned long data) | |
6411 | { | |
6412 | struct ixgbe_adapter *adapter = (struct ixgbe_adapter *)data; | |
6413 | unsigned long next_event_offset; | |
83c61fa9 | 6414 | bool ready = true; |
7086400d | 6415 | |
6bb78cfb AD |
6416 | /* poll faster when waiting for link */ |
6417 | if (adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE) | |
6418 | next_event_offset = HZ / 10; | |
6419 | else | |
6420 | next_event_offset = HZ * 2; | |
83c61fa9 | 6421 | |
6bb78cfb | 6422 | #ifdef CONFIG_PCI_IOV |
83c61fa9 GR |
6423 | /* |
6424 | * don't bother with SR-IOV VF DMA hang check if there are | |
6425 | * no VFs or the link is down | |
6426 | */ | |
6427 | if (!adapter->num_vfs || | |
6bb78cfb | 6428 | (adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE)) |
83c61fa9 | 6429 | goto normal_timer_service; |
83c61fa9 GR |
6430 | |
6431 | /* If we have VFs allocated then we must check for DMA hangs */ | |
6432 | ixgbe_check_for_bad_vf(adapter); | |
6433 | next_event_offset = HZ / 50; | |
6434 | adapter->timer_event_accumulator++; | |
6435 | ||
6bb78cfb | 6436 | if (adapter->timer_event_accumulator >= 100) |
83c61fa9 | 6437 | adapter->timer_event_accumulator = 0; |
7086400d | 6438 | else |
6bb78cfb | 6439 | ready = false; |
7086400d | 6440 | |
6bb78cfb | 6441 | normal_timer_service: |
83c61fa9 | 6442 | #endif |
7086400d AD |
6443 | /* Reset the timer */ |
6444 | mod_timer(&adapter->service_timer, next_event_offset + jiffies); | |
6445 | ||
83c61fa9 GR |
6446 | if (ready) |
6447 | ixgbe_service_event_schedule(adapter); | |
7086400d AD |
6448 | } |
6449 | ||
c83c6cbd AD |
6450 | static void ixgbe_reset_subtask(struct ixgbe_adapter *adapter) |
6451 | { | |
6452 | if (!(adapter->flags2 & IXGBE_FLAG2_RESET_REQUESTED)) | |
6453 | return; | |
6454 | ||
6455 | adapter->flags2 &= ~IXGBE_FLAG2_RESET_REQUESTED; | |
6456 | ||
09f40aed | 6457 | /* If we're already down, removing or resetting, just bail */ |
c83c6cbd | 6458 | if (test_bit(__IXGBE_DOWN, &adapter->state) || |
09f40aed | 6459 | test_bit(__IXGBE_REMOVING, &adapter->state) || |
c83c6cbd AD |
6460 | test_bit(__IXGBE_RESETTING, &adapter->state)) |
6461 | return; | |
6462 | ||
6463 | ixgbe_dump(adapter); | |
6464 | netdev_err(adapter->netdev, "Reset adapter\n"); | |
6465 | adapter->tx_timeout_count++; | |
6466 | ||
8f4c5c9f | 6467 | rtnl_lock(); |
c83c6cbd | 6468 | ixgbe_reinit_locked(adapter); |
8f4c5c9f | 6469 | rtnl_unlock(); |
c83c6cbd AD |
6470 | } |
6471 | ||
7086400d AD |
6472 | /** |
6473 | * ixgbe_service_task - manages and runs subtasks | |
6474 | * @work: pointer to work_struct containing our data | |
6475 | **/ | |
6476 | static void ixgbe_service_task(struct work_struct *work) | |
6477 | { | |
6478 | struct ixgbe_adapter *adapter = container_of(work, | |
6479 | struct ixgbe_adapter, | |
6480 | service_task); | |
b0483c8f MR |
6481 | if (ixgbe_removed(adapter->hw.hw_addr)) { |
6482 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { | |
6483 | rtnl_lock(); | |
6484 | ixgbe_down(adapter); | |
6485 | rtnl_unlock(); | |
6486 | } | |
6487 | ixgbe_service_event_complete(adapter); | |
6488 | return; | |
6489 | } | |
c83c6cbd | 6490 | ixgbe_reset_subtask(adapter); |
7086400d AD |
6491 | ixgbe_sfp_detection_subtask(adapter); |
6492 | ixgbe_sfp_link_config_subtask(adapter); | |
f0f9778d | 6493 | ixgbe_check_overtemp_subtask(adapter); |
93c52dd0 | 6494 | ixgbe_watchdog_subtask(adapter); |
d034acf1 | 6495 | ixgbe_fdir_reinit_subtask(adapter); |
93c52dd0 | 6496 | ixgbe_check_hang_subtask(adapter); |
891dc082 | 6497 | |
8fecf67c | 6498 | if (test_bit(__IXGBE_PTP_RUNNING, &adapter->state)) { |
891dc082 JK |
6499 | ixgbe_ptp_overflow_check(adapter); |
6500 | ixgbe_ptp_rx_hang(adapter); | |
6501 | } | |
7086400d AD |
6502 | |
6503 | ixgbe_service_event_complete(adapter); | |
9a799d71 AK |
6504 | } |
6505 | ||
fd0db0ed AD |
6506 | static int ixgbe_tso(struct ixgbe_ring *tx_ring, |
6507 | struct ixgbe_tx_buffer *first, | |
244e27ad | 6508 | u8 *hdr_len) |
897ab156 | 6509 | { |
fd0db0ed | 6510 | struct sk_buff *skb = first->skb; |
897ab156 AD |
6511 | u32 vlan_macip_lens, type_tucmd; |
6512 | u32 mss_l4len_idx, l4len; | |
2049e1f6 | 6513 | int err; |
9a799d71 | 6514 | |
8f4fbb9b AD |
6515 | if (skb->ip_summed != CHECKSUM_PARTIAL) |
6516 | return 0; | |
6517 | ||
897ab156 AD |
6518 | if (!skb_is_gso(skb)) |
6519 | return 0; | |
9a799d71 | 6520 | |
2049e1f6 FR |
6521 | err = skb_cow_head(skb, 0); |
6522 | if (err < 0) | |
6523 | return err; | |
9a799d71 | 6524 | |
897ab156 AD |
6525 | /* ADV DTYP TUCMD MKRLOC/ISCSIHEDLEN */ |
6526 | type_tucmd = IXGBE_ADVTXD_TUCMD_L4T_TCP; | |
6527 | ||
a1108ffd | 6528 | if (first->protocol == htons(ETH_P_IP)) { |
897ab156 AD |
6529 | struct iphdr *iph = ip_hdr(skb); |
6530 | iph->tot_len = 0; | |
6531 | iph->check = 0; | |
6532 | tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, | |
6533 | iph->daddr, 0, | |
6534 | IPPROTO_TCP, | |
6535 | 0); | |
6536 | type_tucmd |= IXGBE_ADVTXD_TUCMD_IPV4; | |
244e27ad AD |
6537 | first->tx_flags |= IXGBE_TX_FLAGS_TSO | |
6538 | IXGBE_TX_FLAGS_CSUM | | |
6539 | IXGBE_TX_FLAGS_IPV4; | |
897ab156 AD |
6540 | } else if (skb_is_gso_v6(skb)) { |
6541 | ipv6_hdr(skb)->payload_len = 0; | |
6542 | tcp_hdr(skb)->check = | |
6543 | ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, | |
6544 | &ipv6_hdr(skb)->daddr, | |
6545 | 0, IPPROTO_TCP, 0); | |
244e27ad AD |
6546 | first->tx_flags |= IXGBE_TX_FLAGS_TSO | |
6547 | IXGBE_TX_FLAGS_CSUM; | |
897ab156 AD |
6548 | } |
6549 | ||
091a6246 | 6550 | /* compute header lengths */ |
897ab156 AD |
6551 | l4len = tcp_hdrlen(skb); |
6552 | *hdr_len = skb_transport_offset(skb) + l4len; | |
6553 | ||
091a6246 AD |
6554 | /* update gso size and bytecount with header size */ |
6555 | first->gso_segs = skb_shinfo(skb)->gso_segs; | |
6556 | first->bytecount += (first->gso_segs - 1) * *hdr_len; | |
6557 | ||
c44f5f51 | 6558 | /* mss_l4len_id: use 0 as index for TSO */ |
897ab156 AD |
6559 | mss_l4len_idx = l4len << IXGBE_ADVTXD_L4LEN_SHIFT; |
6560 | mss_l4len_idx |= skb_shinfo(skb)->gso_size << IXGBE_ADVTXD_MSS_SHIFT; | |
897ab156 AD |
6561 | |
6562 | /* vlan_macip_lens: HEADLEN, MACLEN, VLAN tag */ | |
6563 | vlan_macip_lens = skb_network_header_len(skb); | |
6564 | vlan_macip_lens |= skb_network_offset(skb) << IXGBE_ADVTXD_MACLEN_SHIFT; | |
244e27ad | 6565 | vlan_macip_lens |= first->tx_flags & IXGBE_TX_FLAGS_VLAN_MASK; |
897ab156 AD |
6566 | |
6567 | ixgbe_tx_ctxtdesc(tx_ring, vlan_macip_lens, 0, type_tucmd, | |
244e27ad | 6568 | mss_l4len_idx); |
897ab156 AD |
6569 | |
6570 | return 1; | |
6571 | } | |
6572 | ||
244e27ad AD |
6573 | static void ixgbe_tx_csum(struct ixgbe_ring *tx_ring, |
6574 | struct ixgbe_tx_buffer *first) | |
7ca647bd | 6575 | { |
fd0db0ed | 6576 | struct sk_buff *skb = first->skb; |
897ab156 AD |
6577 | u32 vlan_macip_lens = 0; |
6578 | u32 mss_l4len_idx = 0; | |
6579 | u32 type_tucmd = 0; | |
7ca647bd | 6580 | |
897ab156 | 6581 | if (skb->ip_summed != CHECKSUM_PARTIAL) { |
472148c3 AD |
6582 | if (!(first->tx_flags & IXGBE_TX_FLAGS_HW_VLAN) && |
6583 | !(first->tx_flags & IXGBE_TX_FLAGS_CC)) | |
6584 | return; | |
897ab156 AD |
6585 | } else { |
6586 | u8 l4_hdr = 0; | |
244e27ad | 6587 | switch (first->protocol) { |
a1108ffd | 6588 | case htons(ETH_P_IP): |
897ab156 AD |
6589 | vlan_macip_lens |= skb_network_header_len(skb); |
6590 | type_tucmd |= IXGBE_ADVTXD_TUCMD_IPV4; | |
6591 | l4_hdr = ip_hdr(skb)->protocol; | |
7ca647bd | 6592 | break; |
a1108ffd | 6593 | case htons(ETH_P_IPV6): |
897ab156 AD |
6594 | vlan_macip_lens |= skb_network_header_len(skb); |
6595 | l4_hdr = ipv6_hdr(skb)->nexthdr; | |
6596 | break; | |
6597 | default: | |
6598 | if (unlikely(net_ratelimit())) { | |
6599 | dev_warn(tx_ring->dev, | |
6600 | "partial checksum but proto=%x!\n", | |
244e27ad | 6601 | first->protocol); |
897ab156 | 6602 | } |
7ca647bd JP |
6603 | break; |
6604 | } | |
897ab156 AD |
6605 | |
6606 | switch (l4_hdr) { | |
7ca647bd | 6607 | case IPPROTO_TCP: |
897ab156 AD |
6608 | type_tucmd |= IXGBE_ADVTXD_TUCMD_L4T_TCP; |
6609 | mss_l4len_idx = tcp_hdrlen(skb) << | |
6610 | IXGBE_ADVTXD_L4LEN_SHIFT; | |
7ca647bd JP |
6611 | break; |
6612 | case IPPROTO_SCTP: | |
897ab156 AD |
6613 | type_tucmd |= IXGBE_ADVTXD_TUCMD_L4T_SCTP; |
6614 | mss_l4len_idx = sizeof(struct sctphdr) << | |
6615 | IXGBE_ADVTXD_L4LEN_SHIFT; | |
6616 | break; | |
6617 | case IPPROTO_UDP: | |
6618 | mss_l4len_idx = sizeof(struct udphdr) << | |
6619 | IXGBE_ADVTXD_L4LEN_SHIFT; | |
6620 | break; | |
6621 | default: | |
6622 | if (unlikely(net_ratelimit())) { | |
6623 | dev_warn(tx_ring->dev, | |
6624 | "partial checksum but l4 proto=%x!\n", | |
244e27ad | 6625 | l4_hdr); |
897ab156 | 6626 | } |
7ca647bd JP |
6627 | break; |
6628 | } | |
244e27ad AD |
6629 | |
6630 | /* update TX checksum flag */ | |
6631 | first->tx_flags |= IXGBE_TX_FLAGS_CSUM; | |
7ca647bd JP |
6632 | } |
6633 | ||
244e27ad | 6634 | /* vlan_macip_lens: MACLEN, VLAN tag */ |
897ab156 | 6635 | vlan_macip_lens |= skb_network_offset(skb) << IXGBE_ADVTXD_MACLEN_SHIFT; |
244e27ad | 6636 | vlan_macip_lens |= first->tx_flags & IXGBE_TX_FLAGS_VLAN_MASK; |
9a799d71 | 6637 | |
897ab156 AD |
6638 | ixgbe_tx_ctxtdesc(tx_ring, vlan_macip_lens, 0, |
6639 | type_tucmd, mss_l4len_idx); | |
9a799d71 AK |
6640 | } |
6641 | ||
472148c3 AD |
6642 | #define IXGBE_SET_FLAG(_input, _flag, _result) \ |
6643 | ((_flag <= _result) ? \ | |
6644 | ((u32)(_input & _flag) * (_result / _flag)) : \ | |
6645 | ((u32)(_input & _flag) / (_flag / _result))) | |
6646 | ||
6647 | static u32 ixgbe_tx_cmd_type(struct sk_buff *skb, u32 tx_flags) | |
9a799d71 | 6648 | { |
d3d00239 | 6649 | /* set type for advanced descriptor with frame checksum insertion */ |
472148c3 AD |
6650 | u32 cmd_type = IXGBE_ADVTXD_DTYP_DATA | |
6651 | IXGBE_ADVTXD_DCMD_DEXT | | |
6652 | IXGBE_ADVTXD_DCMD_IFCS; | |
9a799d71 | 6653 | |
d3d00239 | 6654 | /* set HW vlan bit if vlan is present */ |
472148c3 AD |
6655 | cmd_type |= IXGBE_SET_FLAG(tx_flags, IXGBE_TX_FLAGS_HW_VLAN, |
6656 | IXGBE_ADVTXD_DCMD_VLE); | |
3a6a4eda | 6657 | |
d3d00239 | 6658 | /* set segmentation enable bits for TSO/FSO */ |
472148c3 AD |
6659 | cmd_type |= IXGBE_SET_FLAG(tx_flags, IXGBE_TX_FLAGS_TSO, |
6660 | IXGBE_ADVTXD_DCMD_TSE); | |
6661 | ||
6662 | /* set timestamp bit if present */ | |
6663 | cmd_type |= IXGBE_SET_FLAG(tx_flags, IXGBE_TX_FLAGS_TSTAMP, | |
6664 | IXGBE_ADVTXD_MAC_TSTAMP); | |
eacd73f7 | 6665 | |
62748b7b | 6666 | /* insert frame checksum */ |
472148c3 | 6667 | cmd_type ^= IXGBE_SET_FLAG(skb->no_fcs, 1, IXGBE_ADVTXD_DCMD_IFCS); |
62748b7b | 6668 | |
d3d00239 AD |
6669 | return cmd_type; |
6670 | } | |
9a799d71 | 6671 | |
729739b7 AD |
6672 | static void ixgbe_tx_olinfo_status(union ixgbe_adv_tx_desc *tx_desc, |
6673 | u32 tx_flags, unsigned int paylen) | |
d3d00239 | 6674 | { |
472148c3 | 6675 | u32 olinfo_status = paylen << IXGBE_ADVTXD_PAYLEN_SHIFT; |
9a799d71 | 6676 | |
d3d00239 | 6677 | /* enable L4 checksum for TSO and TX checksum offload */ |
472148c3 AD |
6678 | olinfo_status |= IXGBE_SET_FLAG(tx_flags, |
6679 | IXGBE_TX_FLAGS_CSUM, | |
6680 | IXGBE_ADVTXD_POPTS_TXSM); | |
9a799d71 | 6681 | |
93f5b3c1 | 6682 | /* enble IPv4 checksum for TSO */ |
472148c3 AD |
6683 | olinfo_status |= IXGBE_SET_FLAG(tx_flags, |
6684 | IXGBE_TX_FLAGS_IPV4, | |
6685 | IXGBE_ADVTXD_POPTS_IXSM); | |
9a799d71 | 6686 | |
7f9643fd AD |
6687 | /* |
6688 | * Check Context must be set if Tx switch is enabled, which it | |
6689 | * always is for case where virtual functions are running | |
6690 | */ | |
472148c3 AD |
6691 | olinfo_status |= IXGBE_SET_FLAG(tx_flags, |
6692 | IXGBE_TX_FLAGS_CC, | |
6693 | IXGBE_ADVTXD_CC); | |
7f9643fd | 6694 | |
472148c3 | 6695 | tx_desc->read.olinfo_status = cpu_to_le32(olinfo_status); |
d3d00239 | 6696 | } |
44df32c5 | 6697 | |
d3d00239 AD |
6698 | #define IXGBE_TXD_CMD (IXGBE_TXD_CMD_EOP | \ |
6699 | IXGBE_TXD_CMD_RS) | |
6700 | ||
6701 | static void ixgbe_tx_map(struct ixgbe_ring *tx_ring, | |
d3d00239 | 6702 | struct ixgbe_tx_buffer *first, |
d3d00239 AD |
6703 | const u8 hdr_len) |
6704 | { | |
fd0db0ed | 6705 | struct sk_buff *skb = first->skb; |
729739b7 | 6706 | struct ixgbe_tx_buffer *tx_buffer; |
d3d00239 | 6707 | union ixgbe_adv_tx_desc *tx_desc; |
ec718254 AD |
6708 | struct skb_frag_struct *frag; |
6709 | dma_addr_t dma; | |
6710 | unsigned int data_len, size; | |
244e27ad | 6711 | u32 tx_flags = first->tx_flags; |
472148c3 | 6712 | u32 cmd_type = ixgbe_tx_cmd_type(skb, tx_flags); |
d3d00239 | 6713 | u16 i = tx_ring->next_to_use; |
d3d00239 | 6714 | |
729739b7 AD |
6715 | tx_desc = IXGBE_TX_DESC(tx_ring, i); |
6716 | ||
ec718254 AD |
6717 | ixgbe_tx_olinfo_status(tx_desc, tx_flags, skb->len - hdr_len); |
6718 | ||
6719 | size = skb_headlen(skb); | |
6720 | data_len = skb->data_len; | |
729739b7 | 6721 | |
d3d00239 AD |
6722 | #ifdef IXGBE_FCOE |
6723 | if (tx_flags & IXGBE_TX_FLAGS_FCOE) { | |
729739b7 | 6724 | if (data_len < sizeof(struct fcoe_crc_eof)) { |
d3d00239 AD |
6725 | size -= sizeof(struct fcoe_crc_eof) - data_len; |
6726 | data_len = 0; | |
729739b7 AD |
6727 | } else { |
6728 | data_len -= sizeof(struct fcoe_crc_eof); | |
9a799d71 AK |
6729 | } |
6730 | } | |
44df32c5 | 6731 | |
d3d00239 | 6732 | #endif |
729739b7 | 6733 | dma = dma_map_single(tx_ring->dev, skb->data, size, DMA_TO_DEVICE); |
8ad494b0 | 6734 | |
ec718254 | 6735 | tx_buffer = first; |
9a799d71 | 6736 | |
ec718254 AD |
6737 | for (frag = &skb_shinfo(skb)->frags[0];; frag++) { |
6738 | if (dma_mapping_error(tx_ring->dev, dma)) | |
6739 | goto dma_error; | |
6740 | ||
6741 | /* record length, and DMA address */ | |
6742 | dma_unmap_len_set(tx_buffer, len, size); | |
6743 | dma_unmap_addr_set(tx_buffer, dma, dma); | |
6744 | ||
6745 | tx_desc->read.buffer_addr = cpu_to_le64(dma); | |
e5a43549 | 6746 | |
729739b7 | 6747 | while (unlikely(size > IXGBE_MAX_DATA_PER_TXD)) { |
d3d00239 | 6748 | tx_desc->read.cmd_type_len = |
472148c3 | 6749 | cpu_to_le32(cmd_type ^ IXGBE_MAX_DATA_PER_TXD); |
e5a43549 | 6750 | |
d3d00239 | 6751 | i++; |
729739b7 | 6752 | tx_desc++; |
d3d00239 | 6753 | if (i == tx_ring->count) { |
e4f74028 | 6754 | tx_desc = IXGBE_TX_DESC(tx_ring, 0); |
d3d00239 AD |
6755 | i = 0; |
6756 | } | |
ec718254 | 6757 | tx_desc->read.olinfo_status = 0; |
729739b7 AD |
6758 | |
6759 | dma += IXGBE_MAX_DATA_PER_TXD; | |
6760 | size -= IXGBE_MAX_DATA_PER_TXD; | |
6761 | ||
6762 | tx_desc->read.buffer_addr = cpu_to_le64(dma); | |
d3d00239 | 6763 | } |
e5a43549 | 6764 | |
729739b7 AD |
6765 | if (likely(!data_len)) |
6766 | break; | |
9a799d71 | 6767 | |
472148c3 | 6768 | tx_desc->read.cmd_type_len = cpu_to_le32(cmd_type ^ size); |
9a799d71 | 6769 | |
729739b7 AD |
6770 | i++; |
6771 | tx_desc++; | |
6772 | if (i == tx_ring->count) { | |
6773 | tx_desc = IXGBE_TX_DESC(tx_ring, 0); | |
6774 | i = 0; | |
6775 | } | |
ec718254 | 6776 | tx_desc->read.olinfo_status = 0; |
9a799d71 | 6777 | |
d3d00239 | 6778 | #ifdef IXGBE_FCOE |
9e903e08 | 6779 | size = min_t(unsigned int, data_len, skb_frag_size(frag)); |
d3d00239 | 6780 | #else |
9e903e08 | 6781 | size = skb_frag_size(frag); |
d3d00239 AD |
6782 | #endif |
6783 | data_len -= size; | |
9a799d71 | 6784 | |
729739b7 AD |
6785 | dma = skb_frag_dma_map(tx_ring->dev, frag, 0, size, |
6786 | DMA_TO_DEVICE); | |
9a799d71 | 6787 | |
729739b7 | 6788 | tx_buffer = &tx_ring->tx_buffer_info[i]; |
729739b7 | 6789 | } |
9a799d71 | 6790 | |
729739b7 | 6791 | /* write last descriptor with RS and EOP bits */ |
472148c3 AD |
6792 | cmd_type |= size | IXGBE_TXD_CMD; |
6793 | tx_desc->read.cmd_type_len = cpu_to_le32(cmd_type); | |
eacd73f7 | 6794 | |
091a6246 | 6795 | netdev_tx_sent_queue(txring_txq(tx_ring), first->bytecount); |
b2d96e0a | 6796 | |
d3d00239 AD |
6797 | /* set the timestamp */ |
6798 | first->time_stamp = jiffies; | |
9a799d71 AK |
6799 | |
6800 | /* | |
729739b7 AD |
6801 | * Force memory writes to complete before letting h/w know there |
6802 | * are new descriptors to fetch. (Only applicable for weak-ordered | |
6803 | * memory model archs, such as IA-64). | |
6804 | * | |
6805 | * We also need this memory barrier to make certain all of the | |
6806 | * status bits have been updated before next_to_watch is written. | |
9a799d71 AK |
6807 | */ |
6808 | wmb(); | |
6809 | ||
d3d00239 AD |
6810 | /* set next_to_watch value indicating a packet is present */ |
6811 | first->next_to_watch = tx_desc; | |
6812 | ||
729739b7 AD |
6813 | i++; |
6814 | if (i == tx_ring->count) | |
6815 | i = 0; | |
6816 | ||
6817 | tx_ring->next_to_use = i; | |
6818 | ||
d3d00239 | 6819 | /* notify HW of packet */ |
84227bcd | 6820 | ixgbe_write_tail(tx_ring, i); |
d3d00239 AD |
6821 | |
6822 | return; | |
6823 | dma_error: | |
729739b7 | 6824 | dev_err(tx_ring->dev, "TX DMA map failed\n"); |
d3d00239 AD |
6825 | |
6826 | /* clear dma mappings for failed tx_buffer_info map */ | |
6827 | for (;;) { | |
729739b7 AD |
6828 | tx_buffer = &tx_ring->tx_buffer_info[i]; |
6829 | ixgbe_unmap_and_free_tx_resource(tx_ring, tx_buffer); | |
6830 | if (tx_buffer == first) | |
d3d00239 AD |
6831 | break; |
6832 | if (i == 0) | |
6833 | i = tx_ring->count; | |
6834 | i--; | |
6835 | } | |
6836 | ||
d3d00239 | 6837 | tx_ring->next_to_use = i; |
9a799d71 AK |
6838 | } |
6839 | ||
fd0db0ed | 6840 | static void ixgbe_atr(struct ixgbe_ring *ring, |
244e27ad | 6841 | struct ixgbe_tx_buffer *first) |
69830529 AD |
6842 | { |
6843 | struct ixgbe_q_vector *q_vector = ring->q_vector; | |
6844 | union ixgbe_atr_hash_dword input = { .dword = 0 }; | |
6845 | union ixgbe_atr_hash_dword common = { .dword = 0 }; | |
6846 | union { | |
6847 | unsigned char *network; | |
6848 | struct iphdr *ipv4; | |
6849 | struct ipv6hdr *ipv6; | |
6850 | } hdr; | |
ee9e0f0b | 6851 | struct tcphdr *th; |
905e4a41 | 6852 | __be16 vlan_id; |
c4cf55e5 | 6853 | |
69830529 AD |
6854 | /* if ring doesn't have a interrupt vector, cannot perform ATR */ |
6855 | if (!q_vector) | |
6856 | return; | |
6857 | ||
6858 | /* do nothing if sampling is disabled */ | |
6859 | if (!ring->atr_sample_rate) | |
d3ead241 | 6860 | return; |
c4cf55e5 | 6861 | |
69830529 | 6862 | ring->atr_count++; |
c4cf55e5 | 6863 | |
69830529 | 6864 | /* snag network header to get L4 type and address */ |
fd0db0ed | 6865 | hdr.network = skb_network_header(first->skb); |
69830529 AD |
6866 | |
6867 | /* Currently only IPv4/IPv6 with TCP is supported */ | |
a1108ffd | 6868 | if ((first->protocol != htons(ETH_P_IPV6) || |
69830529 | 6869 | hdr.ipv6->nexthdr != IPPROTO_TCP) && |
a1108ffd | 6870 | (first->protocol != htons(ETH_P_IP) || |
69830529 AD |
6871 | hdr.ipv4->protocol != IPPROTO_TCP)) |
6872 | return; | |
ee9e0f0b | 6873 | |
fd0db0ed | 6874 | th = tcp_hdr(first->skb); |
c4cf55e5 | 6875 | |
66f32a8b AD |
6876 | /* skip this packet since it is invalid or the socket is closing */ |
6877 | if (!th || th->fin) | |
69830529 AD |
6878 | return; |
6879 | ||
6880 | /* sample on all syn packets or once every atr sample count */ | |
6881 | if (!th->syn && (ring->atr_count < ring->atr_sample_rate)) | |
6882 | return; | |
6883 | ||
6884 | /* reset sample count */ | |
6885 | ring->atr_count = 0; | |
6886 | ||
244e27ad | 6887 | vlan_id = htons(first->tx_flags >> IXGBE_TX_FLAGS_VLAN_SHIFT); |
69830529 AD |
6888 | |
6889 | /* | |
6890 | * src and dst are inverted, think how the receiver sees them | |
6891 | * | |
6892 | * The input is broken into two sections, a non-compressed section | |
6893 | * containing vm_pool, vlan_id, and flow_type. The rest of the data | |
6894 | * is XORed together and stored in the compressed dword. | |
6895 | */ | |
6896 | input.formatted.vlan_id = vlan_id; | |
6897 | ||
6898 | /* | |
6899 | * since src port and flex bytes occupy the same word XOR them together | |
6900 | * and write the value to source port portion of compressed dword | |
6901 | */ | |
244e27ad | 6902 | if (first->tx_flags & (IXGBE_TX_FLAGS_SW_VLAN | IXGBE_TX_FLAGS_HW_VLAN)) |
a1108ffd | 6903 | common.port.src ^= th->dest ^ htons(ETH_P_8021Q); |
69830529 | 6904 | else |
244e27ad | 6905 | common.port.src ^= th->dest ^ first->protocol; |
69830529 AD |
6906 | common.port.dst ^= th->source; |
6907 | ||
a1108ffd | 6908 | if (first->protocol == htons(ETH_P_IP)) { |
69830529 AD |
6909 | input.formatted.flow_type = IXGBE_ATR_FLOW_TYPE_TCPV4; |
6910 | common.ip ^= hdr.ipv4->saddr ^ hdr.ipv4->daddr; | |
6911 | } else { | |
6912 | input.formatted.flow_type = IXGBE_ATR_FLOW_TYPE_TCPV6; | |
6913 | common.ip ^= hdr.ipv6->saddr.s6_addr32[0] ^ | |
6914 | hdr.ipv6->saddr.s6_addr32[1] ^ | |
6915 | hdr.ipv6->saddr.s6_addr32[2] ^ | |
6916 | hdr.ipv6->saddr.s6_addr32[3] ^ | |
6917 | hdr.ipv6->daddr.s6_addr32[0] ^ | |
6918 | hdr.ipv6->daddr.s6_addr32[1] ^ | |
6919 | hdr.ipv6->daddr.s6_addr32[2] ^ | |
6920 | hdr.ipv6->daddr.s6_addr32[3]; | |
6921 | } | |
c4cf55e5 PWJ |
6922 | |
6923 | /* This assumes the Rx queue and Tx queue are bound to the same CPU */ | |
69830529 AD |
6924 | ixgbe_fdir_add_signature_filter_82599(&q_vector->adapter->hw, |
6925 | input, common, ring->queue_index); | |
c4cf55e5 PWJ |
6926 | } |
6927 | ||
63544e9c | 6928 | static int __ixgbe_maybe_stop_tx(struct ixgbe_ring *tx_ring, u16 size) |
e092be60 | 6929 | { |
fc77dc3c | 6930 | netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index); |
e092be60 AV |
6931 | /* Herbert's original patch had: |
6932 | * smp_mb__after_netif_stop_queue(); | |
6933 | * but since that doesn't exist yet, just open code it. */ | |
6934 | smp_mb(); | |
6935 | ||
6936 | /* We need to check again in a case another CPU has just | |
6937 | * made room available. */ | |
7d4987de | 6938 | if (likely(ixgbe_desc_unused(tx_ring) < size)) |
e092be60 AV |
6939 | return -EBUSY; |
6940 | ||
6941 | /* A reprieve! - use start_queue because it doesn't call schedule */ | |
fc77dc3c | 6942 | netif_start_subqueue(tx_ring->netdev, tx_ring->queue_index); |
5b7da515 | 6943 | ++tx_ring->tx_stats.restart_queue; |
e092be60 AV |
6944 | return 0; |
6945 | } | |
6946 | ||
82d4e46e | 6947 | static inline int ixgbe_maybe_stop_tx(struct ixgbe_ring *tx_ring, u16 size) |
e092be60 | 6948 | { |
7d4987de | 6949 | if (likely(ixgbe_desc_unused(tx_ring) >= size)) |
e092be60 | 6950 | return 0; |
fc77dc3c | 6951 | return __ixgbe_maybe_stop_tx(tx_ring, size); |
e092be60 AV |
6952 | } |
6953 | ||
f663dd9a | 6954 | static u16 ixgbe_select_queue(struct net_device *dev, struct sk_buff *skb, |
99932d4f | 6955 | void *accel_priv, select_queue_fallback_t fallback) |
09a3b1f8 | 6956 | { |
f663dd9a JW |
6957 | struct ixgbe_fwd_adapter *fwd_adapter = accel_priv; |
6958 | #ifdef IXGBE_FCOE | |
97488bd1 AD |
6959 | struct ixgbe_adapter *adapter; |
6960 | struct ixgbe_ring_feature *f; | |
6961 | int txq; | |
f663dd9a JW |
6962 | #endif |
6963 | ||
6964 | if (fwd_adapter) | |
6965 | return skb->queue_mapping + fwd_adapter->tx_base_queue; | |
6966 | ||
6967 | #ifdef IXGBE_FCOE | |
5e09a105 | 6968 | |
97488bd1 AD |
6969 | /* |
6970 | * only execute the code below if protocol is FCoE | |
6971 | * or FIP and we have FCoE enabled on the adapter | |
6972 | */ | |
6973 | switch (vlan_get_protocol(skb)) { | |
a1108ffd JP |
6974 | case htons(ETH_P_FCOE): |
6975 | case htons(ETH_P_FIP): | |
97488bd1 | 6976 | adapter = netdev_priv(dev); |
c087663e | 6977 | |
97488bd1 AD |
6978 | if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) |
6979 | break; | |
6980 | default: | |
99932d4f | 6981 | return fallback(dev, skb); |
97488bd1 | 6982 | } |
c087663e | 6983 | |
97488bd1 | 6984 | f = &adapter->ring_feature[RING_F_FCOE]; |
c087663e | 6985 | |
97488bd1 AD |
6986 | txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : |
6987 | smp_processor_id(); | |
56075a98 | 6988 | |
97488bd1 AD |
6989 | while (txq >= f->indices) |
6990 | txq -= f->indices; | |
c4cf55e5 | 6991 | |
97488bd1 | 6992 | return txq + f->offset; |
f663dd9a | 6993 | #else |
99932d4f | 6994 | return fallback(dev, skb); |
f663dd9a | 6995 | #endif |
09a3b1f8 SH |
6996 | } |
6997 | ||
fc77dc3c | 6998 | netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb, |
84418e3b AD |
6999 | struct ixgbe_adapter *adapter, |
7000 | struct ixgbe_ring *tx_ring) | |
9a799d71 | 7001 | { |
d3d00239 | 7002 | struct ixgbe_tx_buffer *first; |
5f715823 | 7003 | int tso; |
d3d00239 | 7004 | u32 tx_flags = 0; |
a535c30e | 7005 | unsigned short f; |
a535c30e | 7006 | u16 count = TXD_USE_COUNT(skb_headlen(skb)); |
66f32a8b | 7007 | __be16 protocol = skb->protocol; |
63544e9c | 7008 | u8 hdr_len = 0; |
5e09a105 | 7009 | |
a535c30e AD |
7010 | /* |
7011 | * need: 1 descriptor per page * PAGE_SIZE/IXGBE_MAX_DATA_PER_TXD, | |
24ddd967 | 7012 | * + 1 desc for skb_headlen/IXGBE_MAX_DATA_PER_TXD, |
a535c30e AD |
7013 | * + 2 desc gap to keep tail from touching head, |
7014 | * + 1 desc for context descriptor, | |
7015 | * otherwise try next time | |
7016 | */ | |
a535c30e AD |
7017 | for (f = 0; f < skb_shinfo(skb)->nr_frags; f++) |
7018 | count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size); | |
7f66162b | 7019 | |
a535c30e AD |
7020 | if (ixgbe_maybe_stop_tx(tx_ring, count + 3)) { |
7021 | tx_ring->tx_stats.tx_busy++; | |
7022 | return NETDEV_TX_BUSY; | |
7023 | } | |
7024 | ||
fd0db0ed AD |
7025 | /* record the location of the first descriptor for this packet */ |
7026 | first = &tx_ring->tx_buffer_info[tx_ring->next_to_use]; | |
7027 | first->skb = skb; | |
091a6246 AD |
7028 | first->bytecount = skb->len; |
7029 | first->gso_segs = 1; | |
fd0db0ed | 7030 | |
66f32a8b | 7031 | /* if we have a HW VLAN tag being added default to the HW one */ |
eab6d18d | 7032 | if (vlan_tx_tag_present(skb)) { |
66f32a8b AD |
7033 | tx_flags |= vlan_tx_tag_get(skb) << IXGBE_TX_FLAGS_VLAN_SHIFT; |
7034 | tx_flags |= IXGBE_TX_FLAGS_HW_VLAN; | |
7035 | /* else if it is a SW VLAN check the next protocol and store the tag */ | |
a1108ffd | 7036 | } else if (protocol == htons(ETH_P_8021Q)) { |
66f32a8b AD |
7037 | struct vlan_hdr *vhdr, _vhdr; |
7038 | vhdr = skb_header_pointer(skb, ETH_HLEN, sizeof(_vhdr), &_vhdr); | |
7039 | if (!vhdr) | |
7040 | goto out_drop; | |
7041 | ||
7042 | protocol = vhdr->h_vlan_encapsulated_proto; | |
9e0c5648 AD |
7043 | tx_flags |= ntohs(vhdr->h_vlan_TCI) << |
7044 | IXGBE_TX_FLAGS_VLAN_SHIFT; | |
66f32a8b AD |
7045 | tx_flags |= IXGBE_TX_FLAGS_SW_VLAN; |
7046 | } | |
7047 | ||
151b260c JK |
7048 | if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP && |
7049 | !test_and_set_bit_lock(__IXGBE_PTP_TX_IN_PROGRESS, | |
7050 | &adapter->state))) { | |
3a6a4eda JK |
7051 | skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; |
7052 | tx_flags |= IXGBE_TX_FLAGS_TSTAMP; | |
891dc082 JK |
7053 | |
7054 | /* schedule check for Tx timestamp */ | |
7055 | adapter->ptp_tx_skb = skb_get(skb); | |
7056 | adapter->ptp_tx_start = jiffies; | |
7057 | schedule_work(&adapter->ptp_tx_work); | |
3a6a4eda | 7058 | } |
3a6a4eda | 7059 | |
ff29a86e JK |
7060 | skb_tx_timestamp(skb); |
7061 | ||
9e0c5648 AD |
7062 | #ifdef CONFIG_PCI_IOV |
7063 | /* | |
7064 | * Use the l2switch_enable flag - would be false if the DMA | |
7065 | * Tx switch had been disabled. | |
7066 | */ | |
7067 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
472148c3 | 7068 | tx_flags |= IXGBE_TX_FLAGS_CC; |
9e0c5648 AD |
7069 | |
7070 | #endif | |
32701dc2 | 7071 | /* DCB maps skb priorities 0-7 onto 3 bit PCP of VLAN tag. */ |
66f32a8b | 7072 | if ((adapter->flags & IXGBE_FLAG_DCB_ENABLED) && |
09dca476 AD |
7073 | ((tx_flags & (IXGBE_TX_FLAGS_HW_VLAN | IXGBE_TX_FLAGS_SW_VLAN)) || |
7074 | (skb->priority != TC_PRIO_CONTROL))) { | |
66f32a8b | 7075 | tx_flags &= ~IXGBE_TX_FLAGS_VLAN_PRIO_MASK; |
32701dc2 JF |
7076 | tx_flags |= (skb->priority & 0x7) << |
7077 | IXGBE_TX_FLAGS_VLAN_PRIO_SHIFT; | |
66f32a8b AD |
7078 | if (tx_flags & IXGBE_TX_FLAGS_SW_VLAN) { |
7079 | struct vlan_ethhdr *vhdr; | |
2049e1f6 FR |
7080 | |
7081 | if (skb_cow_head(skb, 0)) | |
66f32a8b AD |
7082 | goto out_drop; |
7083 | vhdr = (struct vlan_ethhdr *)skb->data; | |
7084 | vhdr->h_vlan_TCI = htons(tx_flags >> | |
7085 | IXGBE_TX_FLAGS_VLAN_SHIFT); | |
7086 | } else { | |
7087 | tx_flags |= IXGBE_TX_FLAGS_HW_VLAN; | |
2f90b865 | 7088 | } |
9a799d71 | 7089 | } |
eacd73f7 | 7090 | |
244e27ad AD |
7091 | /* record initial flags and protocol */ |
7092 | first->tx_flags = tx_flags; | |
7093 | first->protocol = protocol; | |
7094 | ||
eacd73f7 | 7095 | #ifdef IXGBE_FCOE |
66f32a8b | 7096 | /* setup tx offload for FCoE */ |
a1108ffd | 7097 | if ((protocol == htons(ETH_P_FCOE)) && |
a58915c7 | 7098 | (tx_ring->netdev->features & (NETIF_F_FSO | NETIF_F_FCOE_CRC))) { |
244e27ad | 7099 | tso = ixgbe_fso(tx_ring, first, &hdr_len); |
897ab156 AD |
7100 | if (tso < 0) |
7101 | goto out_drop; | |
9a799d71 | 7102 | |
66f32a8b | 7103 | goto xmit_fcoe; |
eacd73f7 | 7104 | } |
9a799d71 | 7105 | |
66f32a8b | 7106 | #endif /* IXGBE_FCOE */ |
244e27ad | 7107 | tso = ixgbe_tso(tx_ring, first, &hdr_len); |
66f32a8b | 7108 | if (tso < 0) |
897ab156 | 7109 | goto out_drop; |
244e27ad AD |
7110 | else if (!tso) |
7111 | ixgbe_tx_csum(tx_ring, first); | |
66f32a8b AD |
7112 | |
7113 | /* add the ATR filter if ATR is on */ | |
7114 | if (test_bit(__IXGBE_TX_FDIR_INIT_DONE, &tx_ring->state)) | |
244e27ad | 7115 | ixgbe_atr(tx_ring, first); |
66f32a8b AD |
7116 | |
7117 | #ifdef IXGBE_FCOE | |
7118 | xmit_fcoe: | |
7119 | #endif /* IXGBE_FCOE */ | |
244e27ad | 7120 | ixgbe_tx_map(tx_ring, first, hdr_len); |
d3d00239 AD |
7121 | |
7122 | ixgbe_maybe_stop_tx(tx_ring, DESC_NEEDED); | |
9a799d71 AK |
7123 | |
7124 | return NETDEV_TX_OK; | |
897ab156 AD |
7125 | |
7126 | out_drop: | |
fd0db0ed AD |
7127 | dev_kfree_skb_any(first->skb); |
7128 | first->skb = NULL; | |
7129 | ||
897ab156 | 7130 | return NETDEV_TX_OK; |
9a799d71 AK |
7131 | } |
7132 | ||
2a47fa45 JF |
7133 | static netdev_tx_t __ixgbe_xmit_frame(struct sk_buff *skb, |
7134 | struct net_device *netdev, | |
7135 | struct ixgbe_ring *ring) | |
84418e3b AD |
7136 | { |
7137 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7138 | struct ixgbe_ring *tx_ring; | |
7139 | ||
a50c29dd AD |
7140 | /* |
7141 | * The minimum packet size for olinfo paylen is 17 so pad the skb | |
7142 | * in order to meet this minimum size requirement. | |
7143 | */ | |
f73332fc SH |
7144 | if (unlikely(skb->len < 17)) { |
7145 | if (skb_pad(skb, 17 - skb->len)) | |
a50c29dd AD |
7146 | return NETDEV_TX_OK; |
7147 | skb->len = 17; | |
71a49f77 | 7148 | skb_set_tail_pointer(skb, 17); |
a50c29dd AD |
7149 | } |
7150 | ||
2a47fa45 JF |
7151 | tx_ring = ring ? ring : adapter->tx_ring[skb->queue_mapping]; |
7152 | ||
fc77dc3c | 7153 | return ixgbe_xmit_frame_ring(skb, adapter, tx_ring); |
84418e3b AD |
7154 | } |
7155 | ||
2a47fa45 JF |
7156 | static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb, |
7157 | struct net_device *netdev) | |
7158 | { | |
7159 | return __ixgbe_xmit_frame(skb, netdev, NULL); | |
7160 | } | |
7161 | ||
9a799d71 AK |
7162 | /** |
7163 | * ixgbe_set_mac - Change the Ethernet Address of the NIC | |
7164 | * @netdev: network interface device structure | |
7165 | * @p: pointer to an address structure | |
7166 | * | |
7167 | * Returns 0 on success, negative on failure | |
7168 | **/ | |
7169 | static int ixgbe_set_mac(struct net_device *netdev, void *p) | |
7170 | { | |
7171 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
b4617240 | 7172 | struct ixgbe_hw *hw = &adapter->hw; |
9a799d71 AK |
7173 | struct sockaddr *addr = p; |
7174 | ||
7175 | if (!is_valid_ether_addr(addr->sa_data)) | |
7176 | return -EADDRNOTAVAIL; | |
7177 | ||
7178 | memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); | |
b4617240 | 7179 | memcpy(hw->mac.addr, addr->sa_data, netdev->addr_len); |
9a799d71 | 7180 | |
1d9c0bfd | 7181 | hw->mac.ops.set_rar(hw, 0, hw->mac.addr, VMDQ_P(0), IXGBE_RAH_AV); |
9a799d71 AK |
7182 | |
7183 | return 0; | |
7184 | } | |
7185 | ||
6b73e10d BH |
7186 | static int |
7187 | ixgbe_mdio_read(struct net_device *netdev, int prtad, int devad, u16 addr) | |
7188 | { | |
7189 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7190 | struct ixgbe_hw *hw = &adapter->hw; | |
7191 | u16 value; | |
7192 | int rc; | |
7193 | ||
7194 | if (prtad != hw->phy.mdio.prtad) | |
7195 | return -EINVAL; | |
7196 | rc = hw->phy.ops.read_reg(hw, addr, devad, &value); | |
7197 | if (!rc) | |
7198 | rc = value; | |
7199 | return rc; | |
7200 | } | |
7201 | ||
7202 | static int ixgbe_mdio_write(struct net_device *netdev, int prtad, int devad, | |
7203 | u16 addr, u16 value) | |
7204 | { | |
7205 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7206 | struct ixgbe_hw *hw = &adapter->hw; | |
7207 | ||
7208 | if (prtad != hw->phy.mdio.prtad) | |
7209 | return -EINVAL; | |
7210 | return hw->phy.ops.write_reg(hw, addr, devad, value); | |
7211 | } | |
7212 | ||
7213 | static int ixgbe_ioctl(struct net_device *netdev, struct ifreq *req, int cmd) | |
7214 | { | |
7215 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7216 | ||
3a6a4eda | 7217 | switch (cmd) { |
3a6a4eda | 7218 | case SIOCSHWTSTAMP: |
93501d48 JK |
7219 | return ixgbe_ptp_set_ts_config(adapter, req); |
7220 | case SIOCGHWTSTAMP: | |
7221 | return ixgbe_ptp_get_ts_config(adapter, req); | |
3a6a4eda JK |
7222 | default: |
7223 | return mdio_mii_ioctl(&adapter->hw.phy.mdio, if_mii(req), cmd); | |
7224 | } | |
6b73e10d BH |
7225 | } |
7226 | ||
0365e6e4 PW |
7227 | /** |
7228 | * ixgbe_add_sanmac_netdev - Add the SAN MAC address to the corresponding | |
31278e71 | 7229 | * netdev->dev_addrs |
0365e6e4 PW |
7230 | * @netdev: network interface device structure |
7231 | * | |
7232 | * Returns non-zero on failure | |
7233 | **/ | |
7234 | static int ixgbe_add_sanmac_netdev(struct net_device *dev) | |
7235 | { | |
7236 | int err = 0; | |
7237 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
7fa7c9dc | 7238 | struct ixgbe_hw *hw = &adapter->hw; |
0365e6e4 | 7239 | |
7fa7c9dc | 7240 | if (is_valid_ether_addr(hw->mac.san_addr)) { |
0365e6e4 | 7241 | rtnl_lock(); |
7fa7c9dc | 7242 | err = dev_addr_add(dev, hw->mac.san_addr, NETDEV_HW_ADDR_T_SAN); |
0365e6e4 | 7243 | rtnl_unlock(); |
7fa7c9dc AD |
7244 | |
7245 | /* update SAN MAC vmdq pool selection */ | |
7246 | hw->mac.ops.set_vmdq_san_mac(hw, VMDQ_P(0)); | |
0365e6e4 PW |
7247 | } |
7248 | return err; | |
7249 | } | |
7250 | ||
7251 | /** | |
7252 | * ixgbe_del_sanmac_netdev - Removes the SAN MAC address to the corresponding | |
31278e71 | 7253 | * netdev->dev_addrs |
0365e6e4 PW |
7254 | * @netdev: network interface device structure |
7255 | * | |
7256 | * Returns non-zero on failure | |
7257 | **/ | |
7258 | static int ixgbe_del_sanmac_netdev(struct net_device *dev) | |
7259 | { | |
7260 | int err = 0; | |
7261 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
7262 | struct ixgbe_mac_info *mac = &adapter->hw.mac; | |
7263 | ||
7264 | if (is_valid_ether_addr(mac->san_addr)) { | |
7265 | rtnl_lock(); | |
7266 | err = dev_addr_del(dev, mac->san_addr, NETDEV_HW_ADDR_T_SAN); | |
7267 | rtnl_unlock(); | |
7268 | } | |
7269 | return err; | |
7270 | } | |
7271 | ||
9a799d71 AK |
7272 | #ifdef CONFIG_NET_POLL_CONTROLLER |
7273 | /* | |
7274 | * Polling 'interrupt' - used by things like netconsole to send skbs | |
7275 | * without having to re-enable interrupts. It's not called while | |
7276 | * the interrupt routine is executing. | |
7277 | */ | |
7278 | static void ixgbe_netpoll(struct net_device *netdev) | |
7279 | { | |
7280 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
8f9a7167 | 7281 | int i; |
9a799d71 | 7282 | |
1a647bd2 AD |
7283 | /* if interface is down do nothing */ |
7284 | if (test_bit(__IXGBE_DOWN, &adapter->state)) | |
7285 | return; | |
7286 | ||
9a799d71 | 7287 | adapter->flags |= IXGBE_FLAG_IN_NETPOLL; |
8f9a7167 | 7288 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
49c7ffbe AD |
7289 | for (i = 0; i < adapter->num_q_vectors; i++) |
7290 | ixgbe_msix_clean_rings(0, adapter->q_vector[i]); | |
8f9a7167 PWJ |
7291 | } else { |
7292 | ixgbe_intr(adapter->pdev->irq, netdev); | |
7293 | } | |
9a799d71 | 7294 | adapter->flags &= ~IXGBE_FLAG_IN_NETPOLL; |
9a799d71 | 7295 | } |
9a799d71 | 7296 | |
581330ba | 7297 | #endif |
de1036b1 ED |
7298 | static struct rtnl_link_stats64 *ixgbe_get_stats64(struct net_device *netdev, |
7299 | struct rtnl_link_stats64 *stats) | |
7300 | { | |
7301 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7302 | int i; | |
7303 | ||
1a51502b | 7304 | rcu_read_lock(); |
de1036b1 | 7305 | for (i = 0; i < adapter->num_rx_queues; i++) { |
1a51502b | 7306 | struct ixgbe_ring *ring = ACCESS_ONCE(adapter->rx_ring[i]); |
de1036b1 ED |
7307 | u64 bytes, packets; |
7308 | unsigned int start; | |
7309 | ||
1a51502b ED |
7310 | if (ring) { |
7311 | do { | |
57a7744e | 7312 | start = u64_stats_fetch_begin_irq(&ring->syncp); |
1a51502b ED |
7313 | packets = ring->stats.packets; |
7314 | bytes = ring->stats.bytes; | |
57a7744e | 7315 | } while (u64_stats_fetch_retry_irq(&ring->syncp, start)); |
1a51502b ED |
7316 | stats->rx_packets += packets; |
7317 | stats->rx_bytes += bytes; | |
7318 | } | |
de1036b1 | 7319 | } |
1ac9ad13 ED |
7320 | |
7321 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
7322 | struct ixgbe_ring *ring = ACCESS_ONCE(adapter->tx_ring[i]); | |
7323 | u64 bytes, packets; | |
7324 | unsigned int start; | |
7325 | ||
7326 | if (ring) { | |
7327 | do { | |
57a7744e | 7328 | start = u64_stats_fetch_begin_irq(&ring->syncp); |
1ac9ad13 ED |
7329 | packets = ring->stats.packets; |
7330 | bytes = ring->stats.bytes; | |
57a7744e | 7331 | } while (u64_stats_fetch_retry_irq(&ring->syncp, start)); |
1ac9ad13 ED |
7332 | stats->tx_packets += packets; |
7333 | stats->tx_bytes += bytes; | |
7334 | } | |
7335 | } | |
1a51502b | 7336 | rcu_read_unlock(); |
de1036b1 ED |
7337 | /* following stats updated by ixgbe_watchdog_task() */ |
7338 | stats->multicast = netdev->stats.multicast; | |
7339 | stats->rx_errors = netdev->stats.rx_errors; | |
7340 | stats->rx_length_errors = netdev->stats.rx_length_errors; | |
7341 | stats->rx_crc_errors = netdev->stats.rx_crc_errors; | |
7342 | stats->rx_missed_errors = netdev->stats.rx_missed_errors; | |
7343 | return stats; | |
7344 | } | |
7345 | ||
8af3c33f | 7346 | #ifdef CONFIG_IXGBE_DCB |
49ce9c2c BH |
7347 | /** |
7348 | * ixgbe_validate_rtr - verify 802.1Qp to Rx packet buffer mapping is valid. | |
7349 | * @adapter: pointer to ixgbe_adapter | |
8b1c0b24 JF |
7350 | * @tc: number of traffic classes currently enabled |
7351 | * | |
7352 | * Configure a valid 802.1Qp to Rx packet buffer mapping ie confirm | |
7353 | * 802.1Q priority maps to a packet buffer that exists. | |
7354 | */ | |
7355 | static void ixgbe_validate_rtr(struct ixgbe_adapter *adapter, u8 tc) | |
7356 | { | |
7357 | struct ixgbe_hw *hw = &adapter->hw; | |
7358 | u32 reg, rsave; | |
7359 | int i; | |
7360 | ||
7361 | /* 82598 have a static priority to TC mapping that can not | |
7362 | * be changed so no validation is needed. | |
7363 | */ | |
7364 | if (hw->mac.type == ixgbe_mac_82598EB) | |
7365 | return; | |
7366 | ||
7367 | reg = IXGBE_READ_REG(hw, IXGBE_RTRUP2TC); | |
7368 | rsave = reg; | |
7369 | ||
7370 | for (i = 0; i < MAX_TRAFFIC_CLASS; i++) { | |
7371 | u8 up2tc = reg >> (i * IXGBE_RTRUP2TC_UP_SHIFT); | |
7372 | ||
7373 | /* If up2tc is out of bounds default to zero */ | |
7374 | if (up2tc > tc) | |
7375 | reg &= ~(0x7 << IXGBE_RTRUP2TC_UP_SHIFT); | |
7376 | } | |
7377 | ||
7378 | if (reg != rsave) | |
7379 | IXGBE_WRITE_REG(hw, IXGBE_RTRUP2TC, reg); | |
7380 | ||
7381 | return; | |
7382 | } | |
7383 | ||
02debdc9 AD |
7384 | /** |
7385 | * ixgbe_set_prio_tc_map - Configure netdev prio tc map | |
7386 | * @adapter: Pointer to adapter struct | |
7387 | * | |
7388 | * Populate the netdev user priority to tc map | |
7389 | */ | |
7390 | static void ixgbe_set_prio_tc_map(struct ixgbe_adapter *adapter) | |
7391 | { | |
7392 | struct net_device *dev = adapter->netdev; | |
7393 | struct ixgbe_dcb_config *dcb_cfg = &adapter->dcb_cfg; | |
7394 | struct ieee_ets *ets = adapter->ixgbe_ieee_ets; | |
7395 | u8 prio; | |
7396 | ||
7397 | for (prio = 0; prio < MAX_USER_PRIORITY; prio++) { | |
7398 | u8 tc = 0; | |
7399 | ||
7400 | if (adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE) | |
7401 | tc = ixgbe_dcb_get_tc_from_up(dcb_cfg, 0, prio); | |
7402 | else if (ets) | |
7403 | tc = ets->prio_tc[prio]; | |
7404 | ||
7405 | netdev_set_prio_tc_map(dev, prio, tc); | |
7406 | } | |
7407 | } | |
7408 | ||
cca73c59 | 7409 | #endif /* CONFIG_IXGBE_DCB */ |
49ce9c2c BH |
7410 | /** |
7411 | * ixgbe_setup_tc - configure net_device for multiple traffic classes | |
8b1c0b24 JF |
7412 | * |
7413 | * @netdev: net device to configure | |
7414 | * @tc: number of traffic classes to enable | |
7415 | */ | |
7416 | int ixgbe_setup_tc(struct net_device *dev, u8 tc) | |
7417 | { | |
8b1c0b24 JF |
7418 | struct ixgbe_adapter *adapter = netdev_priv(dev); |
7419 | struct ixgbe_hw *hw = &adapter->hw; | |
2a47fa45 | 7420 | bool pools; |
8b1c0b24 | 7421 | |
8b1c0b24 | 7422 | /* Hardware supports up to 8 traffic classes */ |
4de2a022 | 7423 | if (tc > adapter->dcb_cfg.num_tcs.pg_tcs || |
581330ba AD |
7424 | (hw->mac.type == ixgbe_mac_82598EB && |
7425 | tc < MAX_TRAFFIC_CLASS)) | |
8b1c0b24 JF |
7426 | return -EINVAL; |
7427 | ||
2a47fa45 JF |
7428 | pools = (find_first_zero_bit(&adapter->fwd_bitmask, 32) > 1); |
7429 | if (tc && pools && adapter->num_rx_pools > IXGBE_MAX_DCBMACVLANS) | |
7430 | return -EBUSY; | |
7431 | ||
8b1c0b24 | 7432 | /* Hardware has to reinitialize queues and interrupts to |
52f33af8 | 7433 | * match packet buffer alignment. Unfortunately, the |
8b1c0b24 JF |
7434 | * hardware is not flexible enough to do this dynamically. |
7435 | */ | |
7436 | if (netif_running(dev)) | |
7437 | ixgbe_close(dev); | |
7438 | ixgbe_clear_interrupt_scheme(adapter); | |
7439 | ||
cca73c59 | 7440 | #ifdef CONFIG_IXGBE_DCB |
e7589eab | 7441 | if (tc) { |
8b1c0b24 | 7442 | netdev_set_num_tc(dev, tc); |
02debdc9 AD |
7443 | ixgbe_set_prio_tc_map(adapter); |
7444 | ||
e7589eab | 7445 | adapter->flags |= IXGBE_FLAG_DCB_ENABLED; |
e7589eab | 7446 | |
943561d3 AD |
7447 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
7448 | adapter->last_lfc_mode = adapter->hw.fc.requested_mode; | |
e7589eab | 7449 | adapter->hw.fc.requested_mode = ixgbe_fc_none; |
943561d3 | 7450 | } |
e7589eab | 7451 | } else { |
8b1c0b24 | 7452 | netdev_reset_tc(dev); |
02debdc9 | 7453 | |
943561d3 AD |
7454 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) |
7455 | adapter->hw.fc.requested_mode = adapter->last_lfc_mode; | |
e7589eab JF |
7456 | |
7457 | adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED; | |
e7589eab JF |
7458 | |
7459 | adapter->temp_dcb_cfg.pfc_mode_enable = false; | |
7460 | adapter->dcb_cfg.pfc_mode_enable = false; | |
7461 | } | |
7462 | ||
8b1c0b24 | 7463 | ixgbe_validate_rtr(adapter, tc); |
cca73c59 AD |
7464 | |
7465 | #endif /* CONFIG_IXGBE_DCB */ | |
7466 | ixgbe_init_interrupt_scheme(adapter); | |
7467 | ||
8b1c0b24 | 7468 | if (netif_running(dev)) |
cca73c59 | 7469 | return ixgbe_open(dev); |
8b1c0b24 JF |
7470 | |
7471 | return 0; | |
7472 | } | |
de1036b1 | 7473 | |
da36b647 GR |
7474 | #ifdef CONFIG_PCI_IOV |
7475 | void ixgbe_sriov_reinit(struct ixgbe_adapter *adapter) | |
7476 | { | |
7477 | struct net_device *netdev = adapter->netdev; | |
7478 | ||
7479 | rtnl_lock(); | |
da36b647 | 7480 | ixgbe_setup_tc(netdev, netdev_get_num_tc(netdev)); |
da36b647 GR |
7481 | rtnl_unlock(); |
7482 | } | |
7483 | ||
7484 | #endif | |
082757af DS |
7485 | void ixgbe_do_reset(struct net_device *netdev) |
7486 | { | |
7487 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7488 | ||
7489 | if (netif_running(netdev)) | |
7490 | ixgbe_reinit_locked(adapter); | |
7491 | else | |
7492 | ixgbe_reset(adapter); | |
7493 | } | |
7494 | ||
c8f44aff | 7495 | static netdev_features_t ixgbe_fix_features(struct net_device *netdev, |
567d2de2 | 7496 | netdev_features_t features) |
082757af DS |
7497 | { |
7498 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7499 | ||
082757af | 7500 | /* If Rx checksum is disabled, then RSC/LRO should also be disabled */ |
567d2de2 AD |
7501 | if (!(features & NETIF_F_RXCSUM)) |
7502 | features &= ~NETIF_F_LRO; | |
082757af | 7503 | |
567d2de2 AD |
7504 | /* Turn off LRO if not RSC capable */ |
7505 | if (!(adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE)) | |
7506 | features &= ~NETIF_F_LRO; | |
8e2813f5 | 7507 | |
567d2de2 | 7508 | return features; |
082757af DS |
7509 | } |
7510 | ||
c8f44aff | 7511 | static int ixgbe_set_features(struct net_device *netdev, |
567d2de2 | 7512 | netdev_features_t features) |
082757af DS |
7513 | { |
7514 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
567d2de2 | 7515 | netdev_features_t changed = netdev->features ^ features; |
082757af DS |
7516 | bool need_reset = false; |
7517 | ||
082757af | 7518 | /* Make sure RSC matches LRO, reset if change */ |
567d2de2 AD |
7519 | if (!(features & NETIF_F_LRO)) { |
7520 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) | |
082757af | 7521 | need_reset = true; |
567d2de2 AD |
7522 | adapter->flags2 &= ~IXGBE_FLAG2_RSC_ENABLED; |
7523 | } else if ((adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE) && | |
7524 | !(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED)) { | |
7525 | if (adapter->rx_itr_setting == 1 || | |
7526 | adapter->rx_itr_setting > IXGBE_MIN_RSC_ITR) { | |
7527 | adapter->flags2 |= IXGBE_FLAG2_RSC_ENABLED; | |
7528 | need_reset = true; | |
7529 | } else if ((changed ^ features) & NETIF_F_LRO) { | |
7530 | e_info(probe, "rx-usecs set too low, " | |
7531 | "disabling RSC\n"); | |
082757af DS |
7532 | } |
7533 | } | |
7534 | ||
7535 | /* | |
7536 | * Check if Flow Director n-tuple support was enabled or disabled. If | |
7537 | * the state changed, we need to reset. | |
7538 | */ | |
39cb681b AD |
7539 | switch (features & NETIF_F_NTUPLE) { |
7540 | case NETIF_F_NTUPLE: | |
567d2de2 | 7541 | /* turn off ATR, enable perfect filters and reset */ |
39cb681b AD |
7542 | if (!(adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)) |
7543 | need_reset = true; | |
7544 | ||
567d2de2 AD |
7545 | adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE; |
7546 | adapter->flags |= IXGBE_FLAG_FDIR_PERFECT_CAPABLE; | |
39cb681b AD |
7547 | break; |
7548 | default: | |
7549 | /* turn off perfect filters, enable ATR and reset */ | |
7550 | if (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) | |
7551 | need_reset = true; | |
7552 | ||
7553 | adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE; | |
7554 | ||
7555 | /* We cannot enable ATR if SR-IOV is enabled */ | |
7556 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
7557 | break; | |
7558 | ||
7559 | /* We cannot enable ATR if we have 2 or more traffic classes */ | |
7560 | if (netdev_get_num_tc(netdev) > 1) | |
7561 | break; | |
7562 | ||
7563 | /* We cannot enable ATR if RSS is disabled */ | |
7564 | if (adapter->ring_feature[RING_F_RSS].limit <= 1) | |
7565 | break; | |
7566 | ||
7567 | /* A sample rate of 0 indicates ATR disabled */ | |
7568 | if (!adapter->atr_sample_rate) | |
7569 | break; | |
7570 | ||
7571 | adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE; | |
7572 | break; | |
082757af DS |
7573 | } |
7574 | ||
f646968f | 7575 | if (features & NETIF_F_HW_VLAN_CTAG_RX) |
146d4cc9 JF |
7576 | ixgbe_vlan_strip_enable(adapter); |
7577 | else | |
7578 | ixgbe_vlan_strip_disable(adapter); | |
7579 | ||
3f2d1c0f BG |
7580 | if (changed & NETIF_F_RXALL) |
7581 | need_reset = true; | |
7582 | ||
567d2de2 | 7583 | netdev->features = features; |
082757af DS |
7584 | if (need_reset) |
7585 | ixgbe_do_reset(netdev); | |
7586 | ||
7587 | return 0; | |
082757af DS |
7588 | } |
7589 | ||
edc7d573 | 7590 | static int ixgbe_ndo_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], |
0f4b0add | 7591 | struct net_device *dev, |
6b6e2725 | 7592 | const unsigned char *addr, |
0f4b0add JF |
7593 | u16 flags) |
7594 | { | |
7595 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
95447461 JF |
7596 | int err; |
7597 | ||
7598 | if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) | |
faaf02d2 | 7599 | return ndo_dflt_fdb_add(ndm, tb, dev, addr, flags); |
0f4b0add | 7600 | |
b1ac1ef7 JF |
7601 | /* Hardware does not support aging addresses so if a |
7602 | * ndm_state is given only allow permanent addresses | |
7603 | */ | |
7604 | if (ndm->ndm_state && !(ndm->ndm_state & NUD_PERMANENT)) { | |
0f4b0add JF |
7605 | pr_info("%s: FDB only supports static addresses\n", |
7606 | ixgbe_driver_name); | |
7607 | return -EINVAL; | |
7608 | } | |
7609 | ||
46acc460 | 7610 | if (is_unicast_ether_addr(addr) || is_link_local_ether_addr(addr)) { |
95447461 JF |
7611 | u32 rar_uc_entries = IXGBE_MAX_PF_MACVLANS; |
7612 | ||
7613 | if (netdev_uc_count(dev) < rar_uc_entries) | |
0f4b0add | 7614 | err = dev_uc_add_excl(dev, addr); |
0f4b0add | 7615 | else |
95447461 JF |
7616 | err = -ENOMEM; |
7617 | } else if (is_multicast_ether_addr(addr)) { | |
7618 | err = dev_mc_add_excl(dev, addr); | |
7619 | } else { | |
7620 | err = -EINVAL; | |
0f4b0add JF |
7621 | } |
7622 | ||
7623 | /* Only return duplicate errors if NLM_F_EXCL is set */ | |
7624 | if (err == -EEXIST && !(flags & NLM_F_EXCL)) | |
7625 | err = 0; | |
7626 | ||
7627 | return err; | |
7628 | } | |
7629 | ||
815cccbf JF |
7630 | static int ixgbe_ndo_bridge_setlink(struct net_device *dev, |
7631 | struct nlmsghdr *nlh) | |
7632 | { | |
7633 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
7634 | struct nlattr *attr, *br_spec; | |
7635 | int rem; | |
7636 | ||
7637 | if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) | |
7638 | return -EOPNOTSUPP; | |
7639 | ||
7640 | br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC); | |
7641 | ||
7642 | nla_for_each_nested(attr, br_spec, rem) { | |
7643 | __u16 mode; | |
7644 | u32 reg = 0; | |
7645 | ||
7646 | if (nla_type(attr) != IFLA_BRIDGE_MODE) | |
7647 | continue; | |
7648 | ||
7649 | mode = nla_get_u16(attr); | |
9b735984 | 7650 | if (mode == BRIDGE_MODE_VEPA) { |
815cccbf | 7651 | reg = 0; |
9b735984 GR |
7652 | adapter->flags2 &= ~IXGBE_FLAG2_BRIDGE_MODE_VEB; |
7653 | } else if (mode == BRIDGE_MODE_VEB) { | |
815cccbf | 7654 | reg = IXGBE_PFDTXGSWC_VT_LBEN; |
9b735984 GR |
7655 | adapter->flags2 |= IXGBE_FLAG2_BRIDGE_MODE_VEB; |
7656 | } else | |
815cccbf JF |
7657 | return -EINVAL; |
7658 | ||
7659 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_PFDTXGSWC, reg); | |
7660 | ||
7661 | e_info(drv, "enabling bridge mode: %s\n", | |
7662 | mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB"); | |
7663 | } | |
7664 | ||
7665 | return 0; | |
7666 | } | |
7667 | ||
7668 | static int ixgbe_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, | |
6cbdceeb VY |
7669 | struct net_device *dev, |
7670 | u32 filter_mask) | |
815cccbf JF |
7671 | { |
7672 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
7673 | u16 mode; | |
7674 | ||
7675 | if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) | |
7676 | return 0; | |
7677 | ||
9b735984 | 7678 | if (adapter->flags2 & IXGBE_FLAG2_BRIDGE_MODE_VEB) |
815cccbf JF |
7679 | mode = BRIDGE_MODE_VEB; |
7680 | else | |
7681 | mode = BRIDGE_MODE_VEPA; | |
7682 | ||
7683 | return ndo_dflt_bridge_getlink(skb, pid, seq, dev, mode); | |
7684 | } | |
7685 | ||
2a47fa45 JF |
7686 | static void *ixgbe_fwd_add(struct net_device *pdev, struct net_device *vdev) |
7687 | { | |
7688 | struct ixgbe_fwd_adapter *fwd_adapter = NULL; | |
7689 | struct ixgbe_adapter *adapter = netdev_priv(pdev); | |
51f3773b | 7690 | unsigned int limit; |
2a47fa45 JF |
7691 | int pool, err; |
7692 | ||
219354d4 JF |
7693 | #ifdef CONFIG_RPS |
7694 | if (vdev->num_rx_queues != vdev->num_tx_queues) { | |
7695 | netdev_info(pdev, "%s: Only supports a single queue count for TX and RX\n", | |
7696 | vdev->name); | |
7697 | return ERR_PTR(-EINVAL); | |
7698 | } | |
7699 | #endif | |
2a47fa45 | 7700 | /* Check for hardware restriction on number of rx/tx queues */ |
219354d4 | 7701 | if (vdev->num_tx_queues > IXGBE_MAX_L2A_QUEUES || |
2a47fa45 JF |
7702 | vdev->num_tx_queues == IXGBE_BAD_L2A_QUEUE) { |
7703 | netdev_info(pdev, | |
7704 | "%s: Supports RX/TX Queue counts 1,2, and 4\n", | |
7705 | pdev->name); | |
7706 | return ERR_PTR(-EINVAL); | |
7707 | } | |
7708 | ||
7709 | if (((adapter->flags & IXGBE_FLAG_DCB_ENABLED) && | |
7710 | adapter->num_rx_pools > IXGBE_MAX_DCBMACVLANS - 1) || | |
7711 | (adapter->num_rx_pools > IXGBE_MAX_MACVLANS)) | |
7712 | return ERR_PTR(-EBUSY); | |
7713 | ||
7714 | fwd_adapter = kcalloc(1, sizeof(struct ixgbe_fwd_adapter), GFP_KERNEL); | |
7715 | if (!fwd_adapter) | |
7716 | return ERR_PTR(-ENOMEM); | |
7717 | ||
7718 | pool = find_first_zero_bit(&adapter->fwd_bitmask, 32); | |
7719 | adapter->num_rx_pools++; | |
7720 | set_bit(pool, &adapter->fwd_bitmask); | |
51f3773b | 7721 | limit = find_last_bit(&adapter->fwd_bitmask, 32); |
2a47fa45 JF |
7722 | |
7723 | /* Enable VMDq flag so device will be set in VM mode */ | |
7724 | adapter->flags |= IXGBE_FLAG_VMDQ_ENABLED | IXGBE_FLAG_SRIOV_ENABLED; | |
51f3773b | 7725 | adapter->ring_feature[RING_F_VMDQ].limit = limit + 1; |
219354d4 | 7726 | adapter->ring_feature[RING_F_RSS].limit = vdev->num_tx_queues; |
2a47fa45 JF |
7727 | |
7728 | /* Force reinit of ring allocation with VMDQ enabled */ | |
7729 | err = ixgbe_setup_tc(pdev, netdev_get_num_tc(pdev)); | |
7730 | if (err) | |
7731 | goto fwd_add_err; | |
7732 | fwd_adapter->pool = pool; | |
7733 | fwd_adapter->real_adapter = adapter; | |
7734 | err = ixgbe_fwd_ring_up(vdev, fwd_adapter); | |
7735 | if (err) | |
7736 | goto fwd_add_err; | |
7737 | netif_tx_start_all_queues(vdev); | |
7738 | return fwd_adapter; | |
7739 | fwd_add_err: | |
7740 | /* unwind counter and free adapter struct */ | |
7741 | netdev_info(pdev, | |
7742 | "%s: dfwd hardware acceleration failed\n", vdev->name); | |
7743 | clear_bit(pool, &adapter->fwd_bitmask); | |
7744 | adapter->num_rx_pools--; | |
7745 | kfree(fwd_adapter); | |
7746 | return ERR_PTR(err); | |
7747 | } | |
7748 | ||
7749 | static void ixgbe_fwd_del(struct net_device *pdev, void *priv) | |
7750 | { | |
7751 | struct ixgbe_fwd_adapter *fwd_adapter = priv; | |
7752 | struct ixgbe_adapter *adapter = fwd_adapter->real_adapter; | |
51f3773b | 7753 | unsigned int limit; |
2a47fa45 JF |
7754 | |
7755 | clear_bit(fwd_adapter->pool, &adapter->fwd_bitmask); | |
7756 | adapter->num_rx_pools--; | |
7757 | ||
51f3773b JF |
7758 | limit = find_last_bit(&adapter->fwd_bitmask, 32); |
7759 | adapter->ring_feature[RING_F_VMDQ].limit = limit + 1; | |
2a47fa45 JF |
7760 | ixgbe_fwd_ring_down(fwd_adapter->netdev, fwd_adapter); |
7761 | ixgbe_setup_tc(pdev, netdev_get_num_tc(pdev)); | |
7762 | netdev_dbg(pdev, "pool %i:%i queues %i:%i VSI bitmask %lx\n", | |
7763 | fwd_adapter->pool, adapter->num_rx_pools, | |
7764 | fwd_adapter->rx_base_queue, | |
7765 | fwd_adapter->rx_base_queue + adapter->num_rx_queues_per_pool, | |
7766 | adapter->fwd_bitmask); | |
7767 | kfree(fwd_adapter); | |
7768 | } | |
7769 | ||
0edc3527 | 7770 | static const struct net_device_ops ixgbe_netdev_ops = { |
e8e9f696 | 7771 | .ndo_open = ixgbe_open, |
0edc3527 | 7772 | .ndo_stop = ixgbe_close, |
00829823 | 7773 | .ndo_start_xmit = ixgbe_xmit_frame, |
09a3b1f8 | 7774 | .ndo_select_queue = ixgbe_select_queue, |
581330ba | 7775 | .ndo_set_rx_mode = ixgbe_set_rx_mode, |
0edc3527 SH |
7776 | .ndo_validate_addr = eth_validate_addr, |
7777 | .ndo_set_mac_address = ixgbe_set_mac, | |
7778 | .ndo_change_mtu = ixgbe_change_mtu, | |
7779 | .ndo_tx_timeout = ixgbe_tx_timeout, | |
0edc3527 SH |
7780 | .ndo_vlan_rx_add_vid = ixgbe_vlan_rx_add_vid, |
7781 | .ndo_vlan_rx_kill_vid = ixgbe_vlan_rx_kill_vid, | |
6b73e10d | 7782 | .ndo_do_ioctl = ixgbe_ioctl, |
7f01648a GR |
7783 | .ndo_set_vf_mac = ixgbe_ndo_set_vf_mac, |
7784 | .ndo_set_vf_vlan = ixgbe_ndo_set_vf_vlan, | |
7785 | .ndo_set_vf_tx_rate = ixgbe_ndo_set_vf_bw, | |
581330ba | 7786 | .ndo_set_vf_spoofchk = ixgbe_ndo_set_vf_spoofchk, |
7f01648a | 7787 | .ndo_get_vf_config = ixgbe_ndo_get_vf_config, |
de1036b1 | 7788 | .ndo_get_stats64 = ixgbe_get_stats64, |
8af3c33f | 7789 | #ifdef CONFIG_IXGBE_DCB |
24095aa3 | 7790 | .ndo_setup_tc = ixgbe_setup_tc, |
8af3c33f | 7791 | #endif |
0edc3527 SH |
7792 | #ifdef CONFIG_NET_POLL_CONTROLLER |
7793 | .ndo_poll_controller = ixgbe_netpoll, | |
7794 | #endif | |
e0d1095a | 7795 | #ifdef CONFIG_NET_RX_BUSY_POLL |
8b80cda5 | 7796 | .ndo_busy_poll = ixgbe_low_latency_recv, |
5a85e737 | 7797 | #endif |
332d4a7d YZ |
7798 | #ifdef IXGBE_FCOE |
7799 | .ndo_fcoe_ddp_setup = ixgbe_fcoe_ddp_get, | |
68a683cf | 7800 | .ndo_fcoe_ddp_target = ixgbe_fcoe_ddp_target, |
332d4a7d | 7801 | .ndo_fcoe_ddp_done = ixgbe_fcoe_ddp_put, |
8450ff8c YZ |
7802 | .ndo_fcoe_enable = ixgbe_fcoe_enable, |
7803 | .ndo_fcoe_disable = ixgbe_fcoe_disable, | |
61a1fa10 | 7804 | .ndo_fcoe_get_wwn = ixgbe_fcoe_get_wwn, |
ea81875a | 7805 | .ndo_fcoe_get_hbainfo = ixgbe_fcoe_get_hbainfo, |
332d4a7d | 7806 | #endif /* IXGBE_FCOE */ |
082757af DS |
7807 | .ndo_set_features = ixgbe_set_features, |
7808 | .ndo_fix_features = ixgbe_fix_features, | |
0f4b0add | 7809 | .ndo_fdb_add = ixgbe_ndo_fdb_add, |
815cccbf JF |
7810 | .ndo_bridge_setlink = ixgbe_ndo_bridge_setlink, |
7811 | .ndo_bridge_getlink = ixgbe_ndo_bridge_getlink, | |
2a47fa45 JF |
7812 | .ndo_dfwd_add_station = ixgbe_fwd_add, |
7813 | .ndo_dfwd_del_station = ixgbe_fwd_del, | |
0edc3527 SH |
7814 | }; |
7815 | ||
e027d1ae JK |
7816 | /** |
7817 | * ixgbe_enumerate_functions - Get the number of ports this device has | |
7818 | * @adapter: adapter structure | |
7819 | * | |
7820 | * This function enumerates the phsyical functions co-located on a single slot, | |
7821 | * in order to determine how many ports a device has. This is most useful in | |
7822 | * determining the required GT/s of PCIe bandwidth necessary for optimal | |
7823 | * performance. | |
7824 | **/ | |
7825 | static inline int ixgbe_enumerate_functions(struct ixgbe_adapter *adapter) | |
7826 | { | |
e027d1ae JK |
7827 | struct list_head *entry; |
7828 | int physfns = 0; | |
7829 | ||
f1f96579 JK |
7830 | /* Some cards can not use the generic count PCIe functions method, |
7831 | * because they are behind a parent switch, so we hardcode these with | |
7832 | * the correct number of functions. | |
e027d1ae | 7833 | */ |
f1f96579 | 7834 | if (ixgbe_pcie_from_parent(&adapter->hw)) { |
e027d1ae | 7835 | physfns = 4; |
f1f96579 | 7836 | } else { |
e027d1ae JK |
7837 | list_for_each(entry, &adapter->pdev->bus_list) { |
7838 | struct pci_dev *pdev = | |
7839 | list_entry(entry, struct pci_dev, bus_list); | |
7840 | /* don't count virtual functions */ | |
7841 | if (!pdev->is_virtfn) | |
7842 | physfns++; | |
7843 | } | |
7844 | } | |
7845 | ||
7846 | return physfns; | |
7847 | } | |
7848 | ||
8e2813f5 JK |
7849 | /** |
7850 | * ixgbe_wol_supported - Check whether device supports WoL | |
7851 | * @hw: hw specific details | |
7852 | * @device_id: the device ID | |
7853 | * @subdev_id: the subsystem device ID | |
7854 | * | |
7855 | * This function is used by probe and ethtool to determine | |
7856 | * which devices have WoL support | |
7857 | * | |
7858 | **/ | |
7859 | int ixgbe_wol_supported(struct ixgbe_adapter *adapter, u16 device_id, | |
7860 | u16 subdevice_id) | |
7861 | { | |
7862 | struct ixgbe_hw *hw = &adapter->hw; | |
7863 | u16 wol_cap = adapter->eeprom_cap & IXGBE_DEVICE_CAPS_WOL_MASK; | |
7864 | int is_wol_supported = 0; | |
7865 | ||
7866 | switch (device_id) { | |
7867 | case IXGBE_DEV_ID_82599_SFP: | |
7868 | /* Only these subdevices could supports WOL */ | |
7869 | switch (subdevice_id) { | |
87557440 | 7870 | case IXGBE_SUBDEV_ID_82599_SFP_WOL0: |
8e2813f5 JK |
7871 | case IXGBE_SUBDEV_ID_82599_560FLR: |
7872 | /* only support first port */ | |
7873 | if (hw->bus.func != 0) | |
7874 | break; | |
5700ff26 | 7875 | case IXGBE_SUBDEV_ID_82599_SP_560FLR: |
8e2813f5 | 7876 | case IXGBE_SUBDEV_ID_82599_SFP: |
b6dfd939 | 7877 | case IXGBE_SUBDEV_ID_82599_RNDC: |
f8a06c2c | 7878 | case IXGBE_SUBDEV_ID_82599_ECNA_DP: |
979fe5f7 | 7879 | case IXGBE_SUBDEV_ID_82599_LOM_SFP: |
8e2813f5 JK |
7880 | is_wol_supported = 1; |
7881 | break; | |
7882 | } | |
7883 | break; | |
5daebbb0 DS |
7884 | case IXGBE_DEV_ID_82599EN_SFP: |
7885 | /* Only this subdevice supports WOL */ | |
7886 | switch (subdevice_id) { | |
7887 | case IXGBE_SUBDEV_ID_82599EN_SFP_OCP1: | |
7888 | is_wol_supported = 1; | |
7889 | break; | |
7890 | } | |
7891 | break; | |
8e2813f5 JK |
7892 | case IXGBE_DEV_ID_82599_COMBO_BACKPLANE: |
7893 | /* All except this subdevice support WOL */ | |
7894 | if (subdevice_id != IXGBE_SUBDEV_ID_82599_KX4_KR_MEZZ) | |
7895 | is_wol_supported = 1; | |
7896 | break; | |
7897 | case IXGBE_DEV_ID_82599_KX4: | |
7898 | is_wol_supported = 1; | |
7899 | break; | |
7900 | case IXGBE_DEV_ID_X540T: | |
df376f0d | 7901 | case IXGBE_DEV_ID_X540T1: |
8e2813f5 JK |
7902 | /* check eeprom to see if enabled wol */ |
7903 | if ((wol_cap == IXGBE_DEVICE_CAPS_WOL_PORT0_1) || | |
7904 | ((wol_cap == IXGBE_DEVICE_CAPS_WOL_PORT0) && | |
7905 | (hw->bus.func == 0))) { | |
7906 | is_wol_supported = 1; | |
7907 | } | |
7908 | break; | |
7909 | } | |
7910 | ||
7911 | return is_wol_supported; | |
7912 | } | |
7913 | ||
9a799d71 AK |
7914 | /** |
7915 | * ixgbe_probe - Device Initialization Routine | |
7916 | * @pdev: PCI device information struct | |
7917 | * @ent: entry in ixgbe_pci_tbl | |
7918 | * | |
7919 | * Returns 0 on success, negative on failure | |
7920 | * | |
7921 | * ixgbe_probe initializes an adapter identified by a pci_dev structure. | |
7922 | * The OS initialization, configuring of the adapter private structure, | |
7923 | * and a hardware reset occur. | |
7924 | **/ | |
1dd06ae8 | 7925 | static int ixgbe_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
9a799d71 AK |
7926 | { |
7927 | struct net_device *netdev; | |
7928 | struct ixgbe_adapter *adapter = NULL; | |
7929 | struct ixgbe_hw *hw; | |
7930 | const struct ixgbe_info *ii = ixgbe_info_tbl[ent->driver_data]; | |
9a799d71 | 7931 | static int cards_found; |
e027d1ae | 7932 | int i, err, pci_using_dac, expected_gts; |
d3cb9869 | 7933 | unsigned int indices = MAX_TX_QUEUES; |
289700db | 7934 | u8 part_str[IXGBE_PBANUM_LENGTH]; |
eacd73f7 YZ |
7935 | #ifdef IXGBE_FCOE |
7936 | u16 device_caps; | |
7937 | #endif | |
289700db | 7938 | u32 eec; |
9a799d71 | 7939 | |
bded64a7 AG |
7940 | /* Catch broken hardware that put the wrong VF device ID in |
7941 | * the PCIe SR-IOV capability. | |
7942 | */ | |
7943 | if (pdev->is_virtfn) { | |
7944 | WARN(1, KERN_ERR "%s (%hx:%hx) should not be a VF!\n", | |
7945 | pci_name(pdev), pdev->vendor, pdev->device); | |
7946 | return -EINVAL; | |
7947 | } | |
7948 | ||
9ce77666 | 7949 | err = pci_enable_device_mem(pdev); |
9a799d71 AK |
7950 | if (err) |
7951 | return err; | |
7952 | ||
f5f2eda8 | 7953 | if (!dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) { |
9a799d71 AK |
7954 | pci_using_dac = 1; |
7955 | } else { | |
f5f2eda8 | 7956 | err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); |
9a799d71 | 7957 | if (err) { |
f5f2eda8 RK |
7958 | dev_err(&pdev->dev, |
7959 | "No usable DMA configuration, aborting\n"); | |
7960 | goto err_dma; | |
9a799d71 AK |
7961 | } |
7962 | pci_using_dac = 0; | |
7963 | } | |
7964 | ||
9ce77666 | 7965 | err = pci_request_selected_regions(pdev, pci_select_bars(pdev, |
e8e9f696 | 7966 | IORESOURCE_MEM), ixgbe_driver_name); |
9a799d71 | 7967 | if (err) { |
b8bc0421 DC |
7968 | dev_err(&pdev->dev, |
7969 | "pci_request_selected_regions failed 0x%x\n", err); | |
9a799d71 AK |
7970 | goto err_pci_reg; |
7971 | } | |
7972 | ||
19d5afd4 | 7973 | pci_enable_pcie_error_reporting(pdev); |
6fabd715 | 7974 | |
9a799d71 | 7975 | pci_set_master(pdev); |
fb3b27bc | 7976 | pci_save_state(pdev); |
9a799d71 | 7977 | |
d3cb9869 | 7978 | if (ii->mac == ixgbe_mac_82598EB) { |
e901acd6 | 7979 | #ifdef CONFIG_IXGBE_DCB |
d3cb9869 AD |
7980 | /* 8 TC w/ 4 queues per TC */ |
7981 | indices = 4 * MAX_TRAFFIC_CLASS; | |
7982 | #else | |
7983 | indices = IXGBE_MAX_RSS_INDICES; | |
e901acd6 | 7984 | #endif |
d3cb9869 | 7985 | } |
e901acd6 | 7986 | |
c85a2618 | 7987 | netdev = alloc_etherdev_mq(sizeof(struct ixgbe_adapter), indices); |
9a799d71 AK |
7988 | if (!netdev) { |
7989 | err = -ENOMEM; | |
7990 | goto err_alloc_etherdev; | |
7991 | } | |
7992 | ||
9a799d71 AK |
7993 | SET_NETDEV_DEV(netdev, &pdev->dev); |
7994 | ||
9a799d71 | 7995 | adapter = netdev_priv(netdev); |
c60fbb00 | 7996 | pci_set_drvdata(pdev, adapter); |
9a799d71 AK |
7997 | |
7998 | adapter->netdev = netdev; | |
7999 | adapter->pdev = pdev; | |
8000 | hw = &adapter->hw; | |
8001 | hw->back = adapter; | |
b3f4d599 | 8002 | adapter->msg_enable = netif_msg_init(debug, DEFAULT_MSG_ENABLE); |
9a799d71 | 8003 | |
05857980 | 8004 | hw->hw_addr = ioremap(pci_resource_start(pdev, 0), |
e8e9f696 | 8005 | pci_resource_len(pdev, 0)); |
2a1a091c | 8006 | adapter->io_addr = hw->hw_addr; |
9a799d71 AK |
8007 | if (!hw->hw_addr) { |
8008 | err = -EIO; | |
8009 | goto err_ioremap; | |
8010 | } | |
8011 | ||
0edc3527 | 8012 | netdev->netdev_ops = &ixgbe_netdev_ops; |
9a799d71 | 8013 | ixgbe_set_ethtool_ops(netdev); |
9a799d71 | 8014 | netdev->watchdog_timeo = 5 * HZ; |
9fe93afd | 8015 | strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1); |
9a799d71 | 8016 | |
9a799d71 AK |
8017 | adapter->bd_number = cards_found; |
8018 | ||
9a799d71 AK |
8019 | /* Setup hw api */ |
8020 | memcpy(&hw->mac.ops, ii->mac_ops, sizeof(hw->mac.ops)); | |
021230d4 | 8021 | hw->mac.type = ii->mac; |
9a799d71 | 8022 | |
c44ade9e JB |
8023 | /* EEPROM */ |
8024 | memcpy(&hw->eeprom.ops, ii->eeprom_ops, sizeof(hw->eeprom.ops)); | |
8025 | eec = IXGBE_READ_REG(hw, IXGBE_EEC); | |
58cf663f MR |
8026 | if (ixgbe_removed(hw->hw_addr)) { |
8027 | err = -EIO; | |
8028 | goto err_ioremap; | |
8029 | } | |
c44ade9e JB |
8030 | /* If EEPROM is valid (bit 8 = 1), use default otherwise use bit bang */ |
8031 | if (!(eec & (1 << 8))) | |
8032 | hw->eeprom.ops.read = &ixgbe_read_eeprom_bit_bang_generic; | |
8033 | ||
8034 | /* PHY */ | |
8035 | memcpy(&hw->phy.ops, ii->phy_ops, sizeof(hw->phy.ops)); | |
c4900be0 | 8036 | hw->phy.sfp_type = ixgbe_sfp_type_unknown; |
6b73e10d BH |
8037 | /* ixgbe_identify_phy_generic will set prtad and mmds properly */ |
8038 | hw->phy.mdio.prtad = MDIO_PRTAD_NONE; | |
8039 | hw->phy.mdio.mmds = 0; | |
8040 | hw->phy.mdio.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22; | |
8041 | hw->phy.mdio.dev = netdev; | |
8042 | hw->phy.mdio.mdio_read = ixgbe_mdio_read; | |
8043 | hw->phy.mdio.mdio_write = ixgbe_mdio_write; | |
c4900be0 | 8044 | |
8ca783ab | 8045 | ii->get_invariants(hw); |
9a799d71 AK |
8046 | |
8047 | /* setup the private structure */ | |
8048 | err = ixgbe_sw_init(adapter); | |
8049 | if (err) | |
8050 | goto err_sw_init; | |
8051 | ||
e86bff0e | 8052 | /* Make it possible the adapter to be woken up via WOL */ |
b93a2226 DS |
8053 | switch (adapter->hw.mac.type) { |
8054 | case ixgbe_mac_82599EB: | |
8055 | case ixgbe_mac_X540: | |
e86bff0e | 8056 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); |
b93a2226 DS |
8057 | break; |
8058 | default: | |
8059 | break; | |
8060 | } | |
e86bff0e | 8061 | |
bf069c97 DS |
8062 | /* |
8063 | * If there is a fan on this device and it has failed log the | |
8064 | * failure. | |
8065 | */ | |
8066 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) { | |
8067 | u32 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); | |
8068 | if (esdp & IXGBE_ESDP_SDP1) | |
396e799c | 8069 | e_crit(probe, "Fan has stopped, replace the adapter\n"); |
bf069c97 DS |
8070 | } |
8071 | ||
8ef78adc PWJ |
8072 | if (allow_unsupported_sfp) |
8073 | hw->allow_unsupported_sfp = allow_unsupported_sfp; | |
8074 | ||
c44ade9e | 8075 | /* reset_hw fills in the perm_addr as well */ |
119fc60a | 8076 | hw->phy.reset_if_overtemp = true; |
c44ade9e | 8077 | err = hw->mac.ops.reset_hw(hw); |
119fc60a | 8078 | hw->phy.reset_if_overtemp = false; |
8ca783ab DS |
8079 | if (err == IXGBE_ERR_SFP_NOT_PRESENT && |
8080 | hw->mac.type == ixgbe_mac_82598EB) { | |
8ca783ab DS |
8081 | err = 0; |
8082 | } else if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) { | |
1b1bf31a DS |
8083 | e_dev_err("failed to load because an unsupported SFP+ or QSFP module type was detected.\n"); |
8084 | e_dev_err("Reload the driver after installing a supported module.\n"); | |
04f165ef PW |
8085 | goto err_sw_init; |
8086 | } else if (err) { | |
849c4542 | 8087 | e_dev_err("HW Init failed: %d\n", err); |
c44ade9e JB |
8088 | goto err_sw_init; |
8089 | } | |
8090 | ||
99d74487 | 8091 | #ifdef CONFIG_PCI_IOV |
60a1a680 GR |
8092 | /* SR-IOV not supported on the 82598 */ |
8093 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) | |
8094 | goto skip_sriov; | |
8095 | /* Mailbox */ | |
8096 | ixgbe_init_mbx_params_pf(hw); | |
8097 | memcpy(&hw->mbx.ops, ii->mbx_ops, sizeof(hw->mbx.ops)); | |
dcc23e3a | 8098 | pci_sriov_set_totalvfs(pdev, IXGBE_MAX_VFS_DRV_LIMIT); |
31ac910e | 8099 | ixgbe_enable_sriov(adapter); |
60a1a680 | 8100 | skip_sriov: |
1cdd1ec8 | 8101 | |
99d74487 | 8102 | #endif |
396e799c | 8103 | netdev->features = NETIF_F_SG | |
e8e9f696 | 8104 | NETIF_F_IP_CSUM | |
082757af | 8105 | NETIF_F_IPV6_CSUM | |
f646968f PM |
8106 | NETIF_F_HW_VLAN_CTAG_TX | |
8107 | NETIF_F_HW_VLAN_CTAG_RX | | |
8108 | NETIF_F_HW_VLAN_CTAG_FILTER | | |
082757af DS |
8109 | NETIF_F_TSO | |
8110 | NETIF_F_TSO6 | | |
082757af | 8111 | NETIF_F_RXHASH | |
8bf1264d | 8112 | NETIF_F_RXCSUM; |
9a799d71 | 8113 | |
8bf1264d | 8114 | netdev->hw_features = netdev->features | NETIF_F_HW_L2FW_DOFFLOAD; |
ad31c402 | 8115 | |
58be7666 DS |
8116 | switch (adapter->hw.mac.type) { |
8117 | case ixgbe_mac_82599EB: | |
8118 | case ixgbe_mac_X540: | |
45a5ead0 | 8119 | netdev->features |= NETIF_F_SCTP_CSUM; |
082757af DS |
8120 | netdev->hw_features |= NETIF_F_SCTP_CSUM | |
8121 | NETIF_F_NTUPLE; | |
58be7666 DS |
8122 | break; |
8123 | default: | |
8124 | break; | |
8125 | } | |
45a5ead0 | 8126 | |
3f2d1c0f BG |
8127 | netdev->hw_features |= NETIF_F_RXALL; |
8128 | ||
ad31c402 JK |
8129 | netdev->vlan_features |= NETIF_F_TSO; |
8130 | netdev->vlan_features |= NETIF_F_TSO6; | |
22f32b7a | 8131 | netdev->vlan_features |= NETIF_F_IP_CSUM; |
cd1da503 | 8132 | netdev->vlan_features |= NETIF_F_IPV6_CSUM; |
ad31c402 JK |
8133 | netdev->vlan_features |= NETIF_F_SG; |
8134 | ||
01789349 | 8135 | netdev->priv_flags |= IFF_UNICAST_FLT; |
f43f313e | 8136 | netdev->priv_flags |= IFF_SUPP_NOFCS; |
01789349 | 8137 | |
7a6b6f51 | 8138 | #ifdef CONFIG_IXGBE_DCB |
2f90b865 AD |
8139 | netdev->dcbnl_ops = &dcbnl_ops; |
8140 | #endif | |
8141 | ||
eacd73f7 | 8142 | #ifdef IXGBE_FCOE |
0d551589 | 8143 | if (adapter->flags & IXGBE_FLAG_FCOE_CAPABLE) { |
d3cb9869 AD |
8144 | unsigned int fcoe_l; |
8145 | ||
eacd73f7 YZ |
8146 | if (hw->mac.ops.get_device_caps) { |
8147 | hw->mac.ops.get_device_caps(hw, &device_caps); | |
0d551589 YZ |
8148 | if (device_caps & IXGBE_DEVICE_CAPS_FCOE_OFFLOADS) |
8149 | adapter->flags &= ~IXGBE_FLAG_FCOE_CAPABLE; | |
eacd73f7 | 8150 | } |
7c8ae65a | 8151 | |
d3cb9869 AD |
8152 | |
8153 | fcoe_l = min_t(int, IXGBE_FCRETA_SIZE, num_online_cpus()); | |
8154 | adapter->ring_feature[RING_F_FCOE].limit = fcoe_l; | |
7c8ae65a | 8155 | |
a58915c7 AD |
8156 | netdev->features |= NETIF_F_FSO | |
8157 | NETIF_F_FCOE_CRC; | |
8158 | ||
7c8ae65a AD |
8159 | netdev->vlan_features |= NETIF_F_FSO | |
8160 | NETIF_F_FCOE_CRC | | |
8161 | NETIF_F_FCOE_MTU; | |
5e09d7f6 | 8162 | } |
eacd73f7 | 8163 | #endif /* IXGBE_FCOE */ |
7b872a55 | 8164 | if (pci_using_dac) { |
9a799d71 | 8165 | netdev->features |= NETIF_F_HIGHDMA; |
7b872a55 YZ |
8166 | netdev->vlan_features |= NETIF_F_HIGHDMA; |
8167 | } | |
9a799d71 | 8168 | |
082757af DS |
8169 | if (adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE) |
8170 | netdev->hw_features |= NETIF_F_LRO; | |
0c19d6af | 8171 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) |
f8212f97 AD |
8172 | netdev->features |= NETIF_F_LRO; |
8173 | ||
9a799d71 | 8174 | /* make sure the EEPROM is good */ |
c44ade9e | 8175 | if (hw->eeprom.ops.validate_checksum(hw, NULL) < 0) { |
849c4542 | 8176 | e_dev_err("The EEPROM Checksum Is Not Valid\n"); |
9a799d71 | 8177 | err = -EIO; |
35937c05 | 8178 | goto err_sw_init; |
9a799d71 AK |
8179 | } |
8180 | ||
8181 | memcpy(netdev->dev_addr, hw->mac.perm_addr, netdev->addr_len); | |
9a799d71 | 8182 | |
aaeb6cdf | 8183 | if (!is_valid_ether_addr(netdev->dev_addr)) { |
849c4542 | 8184 | e_dev_err("invalid MAC address\n"); |
9a799d71 | 8185 | err = -EIO; |
35937c05 | 8186 | goto err_sw_init; |
9a799d71 AK |
8187 | } |
8188 | ||
7086400d | 8189 | setup_timer(&adapter->service_timer, &ixgbe_service_timer, |
581330ba | 8190 | (unsigned long) adapter); |
9a799d71 | 8191 | |
58cf663f MR |
8192 | if (ixgbe_removed(hw->hw_addr)) { |
8193 | err = -EIO; | |
8194 | goto err_sw_init; | |
8195 | } | |
7086400d | 8196 | INIT_WORK(&adapter->service_task, ixgbe_service_task); |
58cf663f | 8197 | set_bit(__IXGBE_SERVICE_INITED, &adapter->state); |
7086400d | 8198 | clear_bit(__IXGBE_SERVICE_SCHED, &adapter->state); |
9a799d71 | 8199 | |
021230d4 AV |
8200 | err = ixgbe_init_interrupt_scheme(adapter); |
8201 | if (err) | |
8202 | goto err_sw_init; | |
9a799d71 | 8203 | |
8e2813f5 | 8204 | /* WOL not supported for all devices */ |
c23f5b6b | 8205 | adapter->wol = 0; |
8e2813f5 | 8206 | hw->eeprom.ops.read(hw, 0x2c, &adapter->eeprom_cap); |
6b92b0ba | 8207 | hw->wol_enabled = ixgbe_wol_supported(adapter, pdev->device, |
b8f83638 | 8208 | pdev->subsystem_device); |
6b92b0ba | 8209 | if (hw->wol_enabled) |
9417c464 | 8210 | adapter->wol = IXGBE_WUFC_MAG; |
c23f5b6b | 8211 | |
e8e26350 PW |
8212 | device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); |
8213 | ||
15e5209f ET |
8214 | /* save off EEPROM version number */ |
8215 | hw->eeprom.ops.read(hw, 0x2e, &adapter->eeprom_verh); | |
8216 | hw->eeprom.ops.read(hw, 0x2d, &adapter->eeprom_verl); | |
8217 | ||
04f165ef PW |
8218 | /* pick up the PCI bus settings for reporting later */ |
8219 | hw->mac.ops.get_bus_info(hw); | |
e027d1ae | 8220 | if (ixgbe_pcie_from_parent(hw)) |
b8e82001 | 8221 | ixgbe_get_parent_bus_info(adapter); |
04f165ef | 8222 | |
e027d1ae JK |
8223 | /* calculate the expected PCIe bandwidth required for optimal |
8224 | * performance. Note that some older parts will never have enough | |
8225 | * bandwidth due to being older generation PCIe parts. We clamp these | |
8226 | * parts to ensure no warning is displayed if it can't be fixed. | |
8227 | */ | |
8228 | switch (hw->mac.type) { | |
8229 | case ixgbe_mac_82598EB: | |
8230 | expected_gts = min(ixgbe_enumerate_functions(adapter) * 10, 16); | |
8231 | break; | |
8232 | default: | |
8233 | expected_gts = ixgbe_enumerate_functions(adapter) * 10; | |
8234 | break; | |
0c254d86 | 8235 | } |
e027d1ae | 8236 | ixgbe_check_minimum_link(adapter, expected_gts); |
0c254d86 | 8237 | |
6a2aae5a JK |
8238 | err = ixgbe_read_pba_string_generic(hw, part_str, IXGBE_PBANUM_LENGTH); |
8239 | if (err) | |
8240 | strncpy(part_str, "Unknown", IXGBE_PBANUM_LENGTH); | |
8241 | if (ixgbe_is_sfp(hw) && hw->phy.sfp_type != ixgbe_sfp_type_not_present) | |
8242 | e_dev_info("MAC: %d, PHY: %d, SFP+: %d, PBA No: %s\n", | |
8243 | hw->mac.type, hw->phy.type, hw->phy.sfp_type, | |
8244 | part_str); | |
8245 | else | |
8246 | e_dev_info("MAC: %d, PHY: %d, PBA No: %s\n", | |
8247 | hw->mac.type, hw->phy.type, part_str); | |
8248 | ||
8249 | e_dev_info("%pM\n", netdev->dev_addr); | |
8250 | ||
9a799d71 | 8251 | /* reset the hardware with the new settings */ |
794caeb2 | 8252 | err = hw->mac.ops.start_hw(hw); |
794caeb2 PWJ |
8253 | if (err == IXGBE_ERR_EEPROM_VERSION) { |
8254 | /* We are running on a pre-production device, log a warning */ | |
849c4542 ET |
8255 | e_dev_warn("This device is a pre-production adapter/LOM. " |
8256 | "Please be aware there may be issues associated " | |
8257 | "with your hardware. If you are experiencing " | |
8258 | "problems please contact your Intel or hardware " | |
8259 | "representative who provided you with this " | |
8260 | "hardware.\n"); | |
794caeb2 | 8261 | } |
9a799d71 AK |
8262 | strcpy(netdev->name, "eth%d"); |
8263 | err = register_netdev(netdev); | |
8264 | if (err) | |
8265 | goto err_register; | |
8266 | ||
ec74a471 ET |
8267 | /* power down the optics for 82599 SFP+ fiber */ |
8268 | if (hw->mac.ops.disable_tx_laser) | |
93d3ce8f ET |
8269 | hw->mac.ops.disable_tx_laser(hw); |
8270 | ||
54386467 JB |
8271 | /* carrier off reporting is important to ethtool even BEFORE open */ |
8272 | netif_carrier_off(netdev); | |
8273 | ||
5dd2d332 | 8274 | #ifdef CONFIG_IXGBE_DCA |
652f093f | 8275 | if (dca_add_requester(&pdev->dev) == 0) { |
bd0362dd | 8276 | adapter->flags |= IXGBE_FLAG_DCA_ENABLED; |
bd0362dd JC |
8277 | ixgbe_setup_dca(adapter); |
8278 | } | |
8279 | #endif | |
1cdd1ec8 | 8280 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { |
396e799c | 8281 | e_info(probe, "IOV is enabled with %d VFs\n", adapter->num_vfs); |
1cdd1ec8 GR |
8282 | for (i = 0; i < adapter->num_vfs; i++) |
8283 | ixgbe_vf_configuration(pdev, (i | 0x10000000)); | |
8284 | } | |
8285 | ||
2466dd9c JK |
8286 | /* firmware requires driver version to be 0xFFFFFFFF |
8287 | * since os does not support feature | |
8288 | */ | |
9612de92 | 8289 | if (hw->mac.ops.set_fw_drv_ver) |
2466dd9c JK |
8290 | hw->mac.ops.set_fw_drv_ver(hw, 0xFF, 0xFF, 0xFF, |
8291 | 0xFF); | |
9612de92 | 8292 | |
0365e6e4 PW |
8293 | /* add san mac addr to netdev */ |
8294 | ixgbe_add_sanmac_netdev(netdev); | |
9a799d71 | 8295 | |
ea81875a | 8296 | e_dev_info("%s\n", ixgbe_default_device_descr); |
9a799d71 | 8297 | cards_found++; |
3ca8bc6d | 8298 | |
1210982b | 8299 | #ifdef CONFIG_IXGBE_HWMON |
3ca8bc6d DS |
8300 | if (ixgbe_sysfs_init(adapter)) |
8301 | e_err(probe, "failed to allocate sysfs resources\n"); | |
1210982b | 8302 | #endif /* CONFIG_IXGBE_HWMON */ |
3ca8bc6d | 8303 | |
00949167 | 8304 | ixgbe_dbg_adapter_init(adapter); |
00949167 | 8305 | |
0b2679d6 | 8306 | /* Need link setup for MNG FW, else wait for IXGBE_UP */ |
7155d051 | 8307 | if (ixgbe_mng_enabled(hw) && hw->mac.ops.setup_link) |
0b2679d6 DS |
8308 | hw->mac.ops.setup_link(hw, |
8309 | IXGBE_LINK_SPEED_10GB_FULL | IXGBE_LINK_SPEED_1GB_FULL, | |
8310 | true); | |
8311 | ||
9a799d71 AK |
8312 | return 0; |
8313 | ||
8314 | err_register: | |
5eba3699 | 8315 | ixgbe_release_hw_control(adapter); |
7a921c93 | 8316 | ixgbe_clear_interrupt_scheme(adapter); |
9a799d71 | 8317 | err_sw_init: |
99d74487 | 8318 | ixgbe_disable_sriov(adapter); |
7086400d | 8319 | adapter->flags2 &= ~IXGBE_FLAG2_SEARCH_FOR_SFP; |
2a1a091c | 8320 | iounmap(adapter->io_addr); |
9a799d71 AK |
8321 | err_ioremap: |
8322 | free_netdev(netdev); | |
8323 | err_alloc_etherdev: | |
e8e9f696 JP |
8324 | pci_release_selected_regions(pdev, |
8325 | pci_select_bars(pdev, IORESOURCE_MEM)); | |
9a799d71 AK |
8326 | err_pci_reg: |
8327 | err_dma: | |
41c62843 MR |
8328 | if (!test_and_set_bit(__IXGBE_DISABLED, &adapter->state)) |
8329 | pci_disable_device(pdev); | |
9a799d71 AK |
8330 | return err; |
8331 | } | |
8332 | ||
8333 | /** | |
8334 | * ixgbe_remove - Device Removal Routine | |
8335 | * @pdev: PCI device information struct | |
8336 | * | |
8337 | * ixgbe_remove is called by the PCI subsystem to alert the driver | |
8338 | * that it should release a PCI device. The could be caused by a | |
8339 | * Hot-Plug event, or because the driver is going to be removed from | |
8340 | * memory. | |
8341 | **/ | |
9f9a12f8 | 8342 | static void ixgbe_remove(struct pci_dev *pdev) |
9a799d71 | 8343 | { |
c60fbb00 AD |
8344 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
8345 | struct net_device *netdev = adapter->netdev; | |
9a799d71 | 8346 | |
00949167 | 8347 | ixgbe_dbg_adapter_exit(adapter); |
00949167 | 8348 | |
09f40aed | 8349 | set_bit(__IXGBE_REMOVING, &adapter->state); |
7086400d | 8350 | cancel_work_sync(&adapter->service_task); |
9a799d71 | 8351 | |
3a6a4eda | 8352 | |
5dd2d332 | 8353 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd JC |
8354 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) { |
8355 | adapter->flags &= ~IXGBE_FLAG_DCA_ENABLED; | |
8356 | dca_remove_requester(&pdev->dev); | |
8357 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, 1); | |
8358 | } | |
8359 | ||
8360 | #endif | |
1210982b | 8361 | #ifdef CONFIG_IXGBE_HWMON |
3ca8bc6d | 8362 | ixgbe_sysfs_exit(adapter); |
1210982b | 8363 | #endif /* CONFIG_IXGBE_HWMON */ |
3ca8bc6d | 8364 | |
0365e6e4 PW |
8365 | /* remove the added san mac */ |
8366 | ixgbe_del_sanmac_netdev(netdev); | |
8367 | ||
c4900be0 DS |
8368 | if (netdev->reg_state == NETREG_REGISTERED) |
8369 | unregister_netdev(netdev); | |
9a799d71 | 8370 | |
da36b647 GR |
8371 | #ifdef CONFIG_PCI_IOV |
8372 | /* | |
8373 | * Only disable SR-IOV on unload if the user specified the now | |
8374 | * deprecated max_vfs module parameter. | |
8375 | */ | |
8376 | if (max_vfs) | |
8377 | ixgbe_disable_sriov(adapter); | |
8378 | #endif | |
7a921c93 | 8379 | ixgbe_clear_interrupt_scheme(adapter); |
5eba3699 | 8380 | |
021230d4 | 8381 | ixgbe_release_hw_control(adapter); |
9a799d71 | 8382 | |
2b1588c3 AD |
8383 | #ifdef CONFIG_DCB |
8384 | kfree(adapter->ixgbe_ieee_pfc); | |
8385 | kfree(adapter->ixgbe_ieee_ets); | |
8386 | ||
8387 | #endif | |
2a1a091c | 8388 | iounmap(adapter->io_addr); |
9ce77666 | 8389 | pci_release_selected_regions(pdev, pci_select_bars(pdev, |
e8e9f696 | 8390 | IORESOURCE_MEM)); |
9a799d71 | 8391 | |
849c4542 | 8392 | e_dev_info("complete\n"); |
021230d4 | 8393 | |
9a799d71 AK |
8394 | free_netdev(netdev); |
8395 | ||
19d5afd4 | 8396 | pci_disable_pcie_error_reporting(pdev); |
6fabd715 | 8397 | |
41c62843 MR |
8398 | if (!test_and_set_bit(__IXGBE_DISABLED, &adapter->state)) |
8399 | pci_disable_device(pdev); | |
9a799d71 AK |
8400 | } |
8401 | ||
8402 | /** | |
8403 | * ixgbe_io_error_detected - called when PCI error is detected | |
8404 | * @pdev: Pointer to PCI device | |
8405 | * @state: The current pci connection state | |
8406 | * | |
8407 | * This function is called after a PCI bus error affecting | |
8408 | * this device has been detected. | |
8409 | */ | |
8410 | static pci_ers_result_t ixgbe_io_error_detected(struct pci_dev *pdev, | |
e8e9f696 | 8411 | pci_channel_state_t state) |
9a799d71 | 8412 | { |
c60fbb00 AD |
8413 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
8414 | struct net_device *netdev = adapter->netdev; | |
9a799d71 | 8415 | |
83c61fa9 | 8416 | #ifdef CONFIG_PCI_IOV |
14438464 | 8417 | struct ixgbe_hw *hw = &adapter->hw; |
83c61fa9 GR |
8418 | struct pci_dev *bdev, *vfdev; |
8419 | u32 dw0, dw1, dw2, dw3; | |
8420 | int vf, pos; | |
8421 | u16 req_id, pf_func; | |
8422 | ||
8423 | if (adapter->hw.mac.type == ixgbe_mac_82598EB || | |
8424 | adapter->num_vfs == 0) | |
8425 | goto skip_bad_vf_detection; | |
8426 | ||
8427 | bdev = pdev->bus->self; | |
62f87c0e | 8428 | while (bdev && (pci_pcie_type(bdev) != PCI_EXP_TYPE_ROOT_PORT)) |
83c61fa9 GR |
8429 | bdev = bdev->bus->self; |
8430 | ||
8431 | if (!bdev) | |
8432 | goto skip_bad_vf_detection; | |
8433 | ||
8434 | pos = pci_find_ext_capability(bdev, PCI_EXT_CAP_ID_ERR); | |
8435 | if (!pos) | |
8436 | goto skip_bad_vf_detection; | |
8437 | ||
14438464 MR |
8438 | dw0 = ixgbe_read_pci_cfg_dword(hw, pos + PCI_ERR_HEADER_LOG); |
8439 | dw1 = ixgbe_read_pci_cfg_dword(hw, pos + PCI_ERR_HEADER_LOG + 4); | |
8440 | dw2 = ixgbe_read_pci_cfg_dword(hw, pos + PCI_ERR_HEADER_LOG + 8); | |
8441 | dw3 = ixgbe_read_pci_cfg_dword(hw, pos + PCI_ERR_HEADER_LOG + 12); | |
8442 | if (ixgbe_removed(hw->hw_addr)) | |
8443 | goto skip_bad_vf_detection; | |
83c61fa9 GR |
8444 | |
8445 | req_id = dw1 >> 16; | |
8446 | /* On the 82599 if bit 7 of the requestor ID is set then it's a VF */ | |
8447 | if (!(req_id & 0x0080)) | |
8448 | goto skip_bad_vf_detection; | |
8449 | ||
8450 | pf_func = req_id & 0x01; | |
8451 | if ((pf_func & 1) == (pdev->devfn & 1)) { | |
8452 | unsigned int device_id; | |
8453 | ||
8454 | vf = (req_id & 0x7F) >> 1; | |
8455 | e_dev_err("VF %d has caused a PCIe error\n", vf); | |
8456 | e_dev_err("TLP: dw0: %8.8x\tdw1: %8.8x\tdw2: " | |
8457 | "%8.8x\tdw3: %8.8x\n", | |
8458 | dw0, dw1, dw2, dw3); | |
8459 | switch (adapter->hw.mac.type) { | |
8460 | case ixgbe_mac_82599EB: | |
8461 | device_id = IXGBE_82599_VF_DEVICE_ID; | |
8462 | break; | |
8463 | case ixgbe_mac_X540: | |
8464 | device_id = IXGBE_X540_VF_DEVICE_ID; | |
8465 | break; | |
8466 | default: | |
8467 | device_id = 0; | |
8468 | break; | |
8469 | } | |
8470 | ||
8471 | /* Find the pci device of the offending VF */ | |
36e90319 | 8472 | vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, device_id, NULL); |
83c61fa9 GR |
8473 | while (vfdev) { |
8474 | if (vfdev->devfn == (req_id & 0xFF)) | |
8475 | break; | |
36e90319 | 8476 | vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, |
83c61fa9 GR |
8477 | device_id, vfdev); |
8478 | } | |
8479 | /* | |
8480 | * There's a slim chance the VF could have been hot plugged, | |
8481 | * so if it is no longer present we don't need to issue the | |
8482 | * VFLR. Just clean up the AER in that case. | |
8483 | */ | |
8484 | if (vfdev) { | |
8485 | e_dev_err("Issuing VFLR to VF %d\n", vf); | |
8486 | pci_write_config_dword(vfdev, 0xA8, 0x00008000); | |
b4fafbe9 GR |
8487 | /* Free device reference count */ |
8488 | pci_dev_put(vfdev); | |
83c61fa9 GR |
8489 | } |
8490 | ||
8491 | pci_cleanup_aer_uncorrect_error_status(pdev); | |
8492 | } | |
8493 | ||
8494 | /* | |
8495 | * Even though the error may have occurred on the other port | |
8496 | * we still need to increment the vf error reference count for | |
8497 | * both ports because the I/O resume function will be called | |
8498 | * for both of them. | |
8499 | */ | |
8500 | adapter->vferr_refcount++; | |
8501 | ||
8502 | return PCI_ERS_RESULT_RECOVERED; | |
8503 | ||
8504 | skip_bad_vf_detection: | |
8505 | #endif /* CONFIG_PCI_IOV */ | |
58cf663f MR |
8506 | if (!test_bit(__IXGBE_SERVICE_INITED, &adapter->state)) |
8507 | return PCI_ERS_RESULT_DISCONNECT; | |
8508 | ||
41c62843 | 8509 | rtnl_lock(); |
9a799d71 AK |
8510 | netif_device_detach(netdev); |
8511 | ||
41c62843 MR |
8512 | if (state == pci_channel_io_perm_failure) { |
8513 | rtnl_unlock(); | |
3044b8d1 | 8514 | return PCI_ERS_RESULT_DISCONNECT; |
41c62843 | 8515 | } |
3044b8d1 | 8516 | |
9a799d71 AK |
8517 | if (netif_running(netdev)) |
8518 | ixgbe_down(adapter); | |
41c62843 MR |
8519 | |
8520 | if (!test_and_set_bit(__IXGBE_DISABLED, &adapter->state)) | |
8521 | pci_disable_device(pdev); | |
8522 | rtnl_unlock(); | |
9a799d71 | 8523 | |
b4617240 | 8524 | /* Request a slot reset. */ |
9a799d71 AK |
8525 | return PCI_ERS_RESULT_NEED_RESET; |
8526 | } | |
8527 | ||
8528 | /** | |
8529 | * ixgbe_io_slot_reset - called after the pci bus has been reset. | |
8530 | * @pdev: Pointer to PCI device | |
8531 | * | |
8532 | * Restart the card from scratch, as if from a cold-boot. | |
8533 | */ | |
8534 | static pci_ers_result_t ixgbe_io_slot_reset(struct pci_dev *pdev) | |
8535 | { | |
c60fbb00 | 8536 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
6fabd715 PWJ |
8537 | pci_ers_result_t result; |
8538 | int err; | |
9a799d71 | 8539 | |
9ce77666 | 8540 | if (pci_enable_device_mem(pdev)) { |
396e799c | 8541 | e_err(probe, "Cannot re-enable PCI device after reset.\n"); |
6fabd715 PWJ |
8542 | result = PCI_ERS_RESULT_DISCONNECT; |
8543 | } else { | |
41c62843 MR |
8544 | smp_mb__before_clear_bit(); |
8545 | clear_bit(__IXGBE_DISABLED, &adapter->state); | |
0391bbe3 | 8546 | adapter->hw.hw_addr = adapter->io_addr; |
6fabd715 PWJ |
8547 | pci_set_master(pdev); |
8548 | pci_restore_state(pdev); | |
c0e1f68b | 8549 | pci_save_state(pdev); |
9a799d71 | 8550 | |
dd4d8ca6 | 8551 | pci_wake_from_d3(pdev, false); |
9a799d71 | 8552 | |
6fabd715 | 8553 | ixgbe_reset(adapter); |
88512539 | 8554 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); |
6fabd715 PWJ |
8555 | result = PCI_ERS_RESULT_RECOVERED; |
8556 | } | |
8557 | ||
8558 | err = pci_cleanup_aer_uncorrect_error_status(pdev); | |
8559 | if (err) { | |
849c4542 ET |
8560 | e_dev_err("pci_cleanup_aer_uncorrect_error_status " |
8561 | "failed 0x%0x\n", err); | |
6fabd715 PWJ |
8562 | /* non-fatal, continue */ |
8563 | } | |
9a799d71 | 8564 | |
6fabd715 | 8565 | return result; |
9a799d71 AK |
8566 | } |
8567 | ||
8568 | /** | |
8569 | * ixgbe_io_resume - called when traffic can start flowing again. | |
8570 | * @pdev: Pointer to PCI device | |
8571 | * | |
8572 | * This callback is called when the error recovery driver tells us that | |
8573 | * its OK to resume normal operation. | |
8574 | */ | |
8575 | static void ixgbe_io_resume(struct pci_dev *pdev) | |
8576 | { | |
c60fbb00 AD |
8577 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
8578 | struct net_device *netdev = adapter->netdev; | |
9a799d71 | 8579 | |
83c61fa9 GR |
8580 | #ifdef CONFIG_PCI_IOV |
8581 | if (adapter->vferr_refcount) { | |
8582 | e_info(drv, "Resuming after VF err\n"); | |
8583 | adapter->vferr_refcount--; | |
8584 | return; | |
8585 | } | |
8586 | ||
8587 | #endif | |
c7ccde0f AD |
8588 | if (netif_running(netdev)) |
8589 | ixgbe_up(adapter); | |
9a799d71 AK |
8590 | |
8591 | netif_device_attach(netdev); | |
9a799d71 AK |
8592 | } |
8593 | ||
3646f0e5 | 8594 | static const struct pci_error_handlers ixgbe_err_handler = { |
9a799d71 AK |
8595 | .error_detected = ixgbe_io_error_detected, |
8596 | .slot_reset = ixgbe_io_slot_reset, | |
8597 | .resume = ixgbe_io_resume, | |
8598 | }; | |
8599 | ||
8600 | static struct pci_driver ixgbe_driver = { | |
8601 | .name = ixgbe_driver_name, | |
8602 | .id_table = ixgbe_pci_tbl, | |
8603 | .probe = ixgbe_probe, | |
9f9a12f8 | 8604 | .remove = ixgbe_remove, |
9a799d71 AK |
8605 | #ifdef CONFIG_PM |
8606 | .suspend = ixgbe_suspend, | |
8607 | .resume = ixgbe_resume, | |
8608 | #endif | |
8609 | .shutdown = ixgbe_shutdown, | |
da36b647 | 8610 | .sriov_configure = ixgbe_pci_sriov_configure, |
9a799d71 AK |
8611 | .err_handler = &ixgbe_err_handler |
8612 | }; | |
8613 | ||
8614 | /** | |
8615 | * ixgbe_init_module - Driver Registration Routine | |
8616 | * | |
8617 | * ixgbe_init_module is the first routine called when the driver is | |
8618 | * loaded. All it does is register with the PCI subsystem. | |
8619 | **/ | |
8620 | static int __init ixgbe_init_module(void) | |
8621 | { | |
8622 | int ret; | |
c7689578 | 8623 | pr_info("%s - version %s\n", ixgbe_driver_string, ixgbe_driver_version); |
849c4542 | 8624 | pr_info("%s\n", ixgbe_copyright); |
9a799d71 | 8625 | |
00949167 | 8626 | ixgbe_dbg_init(); |
00949167 | 8627 | |
f01fc1a8 JK |
8628 | ret = pci_register_driver(&ixgbe_driver); |
8629 | if (ret) { | |
f01fc1a8 | 8630 | ixgbe_dbg_exit(); |
f01fc1a8 JK |
8631 | return ret; |
8632 | } | |
8633 | ||
5dd2d332 | 8634 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd | 8635 | dca_register_notify(&dca_notifier); |
bd0362dd | 8636 | #endif |
5dd2d332 | 8637 | |
f01fc1a8 | 8638 | return 0; |
9a799d71 | 8639 | } |
b4617240 | 8640 | |
9a799d71 AK |
8641 | module_init(ixgbe_init_module); |
8642 | ||
8643 | /** | |
8644 | * ixgbe_exit_module - Driver Exit Cleanup Routine | |
8645 | * | |
8646 | * ixgbe_exit_module is called just before the driver is removed | |
8647 | * from memory. | |
8648 | **/ | |
8649 | static void __exit ixgbe_exit_module(void) | |
8650 | { | |
5dd2d332 | 8651 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd JC |
8652 | dca_unregister_notify(&dca_notifier); |
8653 | #endif | |
9a799d71 | 8654 | pci_unregister_driver(&ixgbe_driver); |
00949167 | 8655 | |
00949167 | 8656 | ixgbe_dbg_exit(); |
00949167 | 8657 | |
1a51502b | 8658 | rcu_barrier(); /* Wait for completion of call_rcu()'s */ |
9a799d71 | 8659 | } |
bd0362dd | 8660 | |
5dd2d332 | 8661 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd | 8662 | static int ixgbe_notify_dca(struct notifier_block *nb, unsigned long event, |
e8e9f696 | 8663 | void *p) |
bd0362dd JC |
8664 | { |
8665 | int ret_val; | |
8666 | ||
8667 | ret_val = driver_for_each_device(&ixgbe_driver.driver, NULL, &event, | |
e8e9f696 | 8668 | __ixgbe_notify_dca); |
bd0362dd JC |
8669 | |
8670 | return ret_val ? NOTIFY_BAD : NOTIFY_DONE; | |
8671 | } | |
b453368d | 8672 | |
5dd2d332 | 8673 | #endif /* CONFIG_IXGBE_DCA */ |
849c4542 | 8674 | |
9a799d71 AK |
8675 | module_exit(ixgbe_exit_module); |
8676 | ||
8677 | /* ixgbe_main.c */ |