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9a799d71 AK |
1 | /******************************************************************************* |
2 | ||
3 | Intel 10 Gigabit PCI Express Linux driver | |
8c47eaa7 | 4 | Copyright(c) 1999 - 2010 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: | |
9a799d71 AK |
23 | e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> |
24 | Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
25 | ||
26 | *******************************************************************************/ | |
27 | ||
28 | #include <linux/types.h> | |
29 | #include <linux/module.h> | |
30 | #include <linux/pci.h> | |
31 | #include <linux/netdevice.h> | |
32 | #include <linux/vmalloc.h> | |
33 | #include <linux/string.h> | |
34 | #include <linux/in.h> | |
35 | #include <linux/ip.h> | |
36 | #include <linux/tcp.h> | |
60127865 | 37 | #include <linux/pkt_sched.h> |
9a799d71 | 38 | #include <linux/ipv6.h> |
5a0e3ad6 | 39 | #include <linux/slab.h> |
9a799d71 AK |
40 | #include <net/checksum.h> |
41 | #include <net/ip6_checksum.h> | |
42 | #include <linux/ethtool.h> | |
43 | #include <linux/if_vlan.h> | |
eacd73f7 | 44 | #include <scsi/fc/fc_fcoe.h> |
9a799d71 AK |
45 | |
46 | #include "ixgbe.h" | |
47 | #include "ixgbe_common.h" | |
ee5f784a | 48 | #include "ixgbe_dcb_82599.h" |
1cdd1ec8 | 49 | #include "ixgbe_sriov.h" |
9a799d71 AK |
50 | |
51 | char ixgbe_driver_name[] = "ixgbe"; | |
9c8eb720 | 52 | static const char ixgbe_driver_string[] = |
b4617240 | 53 | "Intel(R) 10 Gigabit PCI Express Network Driver"; |
9a799d71 | 54 | |
92eb879f | 55 | #define DRV_VERSION "2.0.62-k2" |
9c8eb720 | 56 | const char ixgbe_driver_version[] = DRV_VERSION; |
8c47eaa7 | 57 | static char ixgbe_copyright[] = "Copyright (c) 1999-2010 Intel Corporation."; |
9a799d71 AK |
58 | |
59 | static const struct ixgbe_info *ixgbe_info_tbl[] = { | |
b4617240 | 60 | [board_82598] = &ixgbe_82598_info, |
e8e26350 | 61 | [board_82599] = &ixgbe_82599_info, |
9a799d71 AK |
62 | }; |
63 | ||
64 | /* ixgbe_pci_tbl - PCI Device ID Table | |
65 | * | |
66 | * Wildcard entries (PCI_ANY_ID) should come last | |
67 | * Last entry must be all 0s | |
68 | * | |
69 | * { Vendor ID, Device ID, SubVendor ID, SubDevice ID, | |
70 | * Class, Class Mask, private data (not used) } | |
71 | */ | |
a3aa1884 | 72 | static DEFINE_PCI_DEVICE_TABLE(ixgbe_pci_tbl) = { |
1e336d0f DS |
73 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598), |
74 | board_82598 }, | |
9a799d71 | 75 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_DUAL_PORT), |
3957d63d | 76 | board_82598 }, |
9a799d71 | 77 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_SINGLE_PORT), |
3957d63d | 78 | board_82598 }, |
0befdb3e JB |
79 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AT), |
80 | board_82598 }, | |
3845bec0 PWJ |
81 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AT2), |
82 | board_82598 }, | |
9a799d71 | 83 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_CX4), |
3957d63d | 84 | board_82598 }, |
8d792cd9 JB |
85 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_CX4_DUAL_PORT), |
86 | board_82598 }, | |
c4900be0 DS |
87 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_DA_DUAL_PORT), |
88 | board_82598 }, | |
89 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM), | |
90 | board_82598 }, | |
b95f5fcb JB |
91 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_XF_LR), |
92 | board_82598 }, | |
c4900be0 DS |
93 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_SFP_LOM), |
94 | board_82598 }, | |
2f21bdd3 DS |
95 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_BX), |
96 | board_82598 }, | |
e8e26350 PW |
97 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4), |
98 | board_82599 }, | |
1fcf03e6 PWJ |
99 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_XAUI_LOM), |
100 | board_82599 }, | |
74757d49 DS |
101 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KR), |
102 | board_82599 }, | |
e8e26350 PW |
103 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP), |
104 | board_82599 }, | |
38ad1c8e DS |
105 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_EM), |
106 | board_82599 }, | |
dbfec662 DS |
107 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4_MEZZ), |
108 | board_82599 }, | |
8911184f PWJ |
109 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_CX4), |
110 | board_82599 }, | |
119fc60a MC |
111 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_T3_LOM), |
112 | board_82599 }, | |
312eb931 DS |
113 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_COMBO_BACKPLANE), |
114 | board_82599 }, | |
9a799d71 AK |
115 | |
116 | /* required last entry */ | |
117 | {0, } | |
118 | }; | |
119 | MODULE_DEVICE_TABLE(pci, ixgbe_pci_tbl); | |
120 | ||
5dd2d332 | 121 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd | 122 | static int ixgbe_notify_dca(struct notifier_block *, unsigned long event, |
b4617240 | 123 | void *p); |
bd0362dd JC |
124 | static struct notifier_block dca_notifier = { |
125 | .notifier_call = ixgbe_notify_dca, | |
126 | .next = NULL, | |
127 | .priority = 0 | |
128 | }; | |
129 | #endif | |
130 | ||
1cdd1ec8 GR |
131 | #ifdef CONFIG_PCI_IOV |
132 | static unsigned int max_vfs; | |
133 | module_param(max_vfs, uint, 0); | |
134 | MODULE_PARM_DESC(max_vfs, "Maximum number of virtual functions to allocate " | |
135 | "per physical function"); | |
136 | #endif /* CONFIG_PCI_IOV */ | |
137 | ||
9a799d71 AK |
138 | MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>"); |
139 | MODULE_DESCRIPTION("Intel(R) 10 Gigabit PCI Express Network Driver"); | |
140 | MODULE_LICENSE("GPL"); | |
141 | MODULE_VERSION(DRV_VERSION); | |
142 | ||
143 | #define DEFAULT_DEBUG_LEVEL_SHIFT 3 | |
144 | ||
1cdd1ec8 GR |
145 | static inline void ixgbe_disable_sriov(struct ixgbe_adapter *adapter) |
146 | { | |
147 | struct ixgbe_hw *hw = &adapter->hw; | |
148 | u32 gcr; | |
149 | u32 gpie; | |
150 | u32 vmdctl; | |
151 | ||
152 | #ifdef CONFIG_PCI_IOV | |
153 | /* disable iov and allow time for transactions to clear */ | |
154 | pci_disable_sriov(adapter->pdev); | |
155 | #endif | |
156 | ||
157 | /* turn off device IOV mode */ | |
158 | gcr = IXGBE_READ_REG(hw, IXGBE_GCR_EXT); | |
159 | gcr &= ~(IXGBE_GCR_EXT_SRIOV); | |
160 | IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr); | |
161 | gpie = IXGBE_READ_REG(hw, IXGBE_GPIE); | |
162 | gpie &= ~IXGBE_GPIE_VTMODE_MASK; | |
163 | IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); | |
164 | ||
165 | /* set default pool back to 0 */ | |
166 | vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL); | |
167 | vmdctl &= ~IXGBE_VT_CTL_POOL_MASK; | |
168 | IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl); | |
169 | ||
170 | /* take a breather then clean up driver data */ | |
171 | msleep(100); | |
172 | if (adapter->vfinfo) | |
173 | kfree(adapter->vfinfo); | |
174 | adapter->vfinfo = NULL; | |
175 | ||
176 | adapter->num_vfs = 0; | |
177 | adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED; | |
178 | } | |
179 | ||
dcd79aeb TI |
180 | struct ixgbe_reg_info { |
181 | u32 ofs; | |
182 | char *name; | |
183 | }; | |
184 | ||
185 | static const struct ixgbe_reg_info ixgbe_reg_info_tbl[] = { | |
186 | ||
187 | /* General Registers */ | |
188 | {IXGBE_CTRL, "CTRL"}, | |
189 | {IXGBE_STATUS, "STATUS"}, | |
190 | {IXGBE_CTRL_EXT, "CTRL_EXT"}, | |
191 | ||
192 | /* Interrupt Registers */ | |
193 | {IXGBE_EICR, "EICR"}, | |
194 | ||
195 | /* RX Registers */ | |
196 | {IXGBE_SRRCTL(0), "SRRCTL"}, | |
197 | {IXGBE_DCA_RXCTRL(0), "DRXCTL"}, | |
198 | {IXGBE_RDLEN(0), "RDLEN"}, | |
199 | {IXGBE_RDH(0), "RDH"}, | |
200 | {IXGBE_RDT(0), "RDT"}, | |
201 | {IXGBE_RXDCTL(0), "RXDCTL"}, | |
202 | {IXGBE_RDBAL(0), "RDBAL"}, | |
203 | {IXGBE_RDBAH(0), "RDBAH"}, | |
204 | ||
205 | /* TX Registers */ | |
206 | {IXGBE_TDBAL(0), "TDBAL"}, | |
207 | {IXGBE_TDBAH(0), "TDBAH"}, | |
208 | {IXGBE_TDLEN(0), "TDLEN"}, | |
209 | {IXGBE_TDH(0), "TDH"}, | |
210 | {IXGBE_TDT(0), "TDT"}, | |
211 | {IXGBE_TXDCTL(0), "TXDCTL"}, | |
212 | ||
213 | /* List Terminator */ | |
214 | {} | |
215 | }; | |
216 | ||
217 | ||
218 | /* | |
219 | * ixgbe_regdump - register printout routine | |
220 | */ | |
221 | static void ixgbe_regdump(struct ixgbe_hw *hw, struct ixgbe_reg_info *reginfo) | |
222 | { | |
223 | int i = 0, j = 0; | |
224 | char rname[16]; | |
225 | u32 regs[64]; | |
226 | ||
227 | switch (reginfo->ofs) { | |
228 | case IXGBE_SRRCTL(0): | |
229 | for (i = 0; i < 64; i++) | |
230 | regs[i] = IXGBE_READ_REG(hw, IXGBE_SRRCTL(i)); | |
231 | break; | |
232 | case IXGBE_DCA_RXCTRL(0): | |
233 | for (i = 0; i < 64; i++) | |
234 | regs[i] = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i)); | |
235 | break; | |
236 | case IXGBE_RDLEN(0): | |
237 | for (i = 0; i < 64; i++) | |
238 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDLEN(i)); | |
239 | break; | |
240 | case IXGBE_RDH(0): | |
241 | for (i = 0; i < 64; i++) | |
242 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDH(i)); | |
243 | break; | |
244 | case IXGBE_RDT(0): | |
245 | for (i = 0; i < 64; i++) | |
246 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDT(i)); | |
247 | break; | |
248 | case IXGBE_RXDCTL(0): | |
249 | for (i = 0; i < 64; i++) | |
250 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i)); | |
251 | break; | |
252 | case IXGBE_RDBAL(0): | |
253 | for (i = 0; i < 64; i++) | |
254 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDBAL(i)); | |
255 | break; | |
256 | case IXGBE_RDBAH(0): | |
257 | for (i = 0; i < 64; i++) | |
258 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDBAH(i)); | |
259 | break; | |
260 | case IXGBE_TDBAL(0): | |
261 | for (i = 0; i < 64; i++) | |
262 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDBAL(i)); | |
263 | break; | |
264 | case IXGBE_TDBAH(0): | |
265 | for (i = 0; i < 64; i++) | |
266 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDBAH(i)); | |
267 | break; | |
268 | case IXGBE_TDLEN(0): | |
269 | for (i = 0; i < 64; i++) | |
270 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDLEN(i)); | |
271 | break; | |
272 | case IXGBE_TDH(0): | |
273 | for (i = 0; i < 64; i++) | |
274 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDH(i)); | |
275 | break; | |
276 | case IXGBE_TDT(0): | |
277 | for (i = 0; i < 64; i++) | |
278 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDT(i)); | |
279 | break; | |
280 | case IXGBE_TXDCTL(0): | |
281 | for (i = 0; i < 64; i++) | |
282 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TXDCTL(i)); | |
283 | break; | |
284 | default: | |
285 | printk(KERN_INFO "%-15s %08x\n", reginfo->name, | |
286 | IXGBE_READ_REG(hw, reginfo->ofs)); | |
287 | return; | |
288 | } | |
289 | ||
290 | for (i = 0; i < 8; i++) { | |
291 | snprintf(rname, 16, "%s[%d-%d]", reginfo->name, i*8, i*8+7); | |
292 | printk(KERN_ERR "%-15s ", rname); | |
293 | for (j = 0; j < 8; j++) | |
294 | printk(KERN_CONT "%08x ", regs[i*8+j]); | |
295 | printk(KERN_CONT "\n"); | |
296 | } | |
297 | ||
298 | } | |
299 | ||
300 | /* | |
301 | * ixgbe_dump - Print registers, tx-rings and rx-rings | |
302 | */ | |
303 | static void ixgbe_dump(struct ixgbe_adapter *adapter) | |
304 | { | |
305 | struct net_device *netdev = adapter->netdev; | |
306 | struct ixgbe_hw *hw = &adapter->hw; | |
307 | struct ixgbe_reg_info *reginfo; | |
308 | int n = 0; | |
309 | struct ixgbe_ring *tx_ring; | |
310 | struct ixgbe_tx_buffer *tx_buffer_info; | |
311 | union ixgbe_adv_tx_desc *tx_desc; | |
312 | struct my_u0 { u64 a; u64 b; } *u0; | |
313 | struct ixgbe_ring *rx_ring; | |
314 | union ixgbe_adv_rx_desc *rx_desc; | |
315 | struct ixgbe_rx_buffer *rx_buffer_info; | |
316 | u32 staterr; | |
317 | int i = 0; | |
318 | ||
319 | if (!netif_msg_hw(adapter)) | |
320 | return; | |
321 | ||
322 | /* Print netdevice Info */ | |
323 | if (netdev) { | |
324 | dev_info(&adapter->pdev->dev, "Net device Info\n"); | |
325 | printk(KERN_INFO "Device Name state " | |
326 | "trans_start last_rx\n"); | |
327 | printk(KERN_INFO "%-15s %016lX %016lX %016lX\n", | |
328 | netdev->name, | |
329 | netdev->state, | |
330 | netdev->trans_start, | |
331 | netdev->last_rx); | |
332 | } | |
333 | ||
334 | /* Print Registers */ | |
335 | dev_info(&adapter->pdev->dev, "Register Dump\n"); | |
336 | printk(KERN_INFO " Register Name Value\n"); | |
337 | for (reginfo = (struct ixgbe_reg_info *)ixgbe_reg_info_tbl; | |
338 | reginfo->name; reginfo++) { | |
339 | ixgbe_regdump(hw, reginfo); | |
340 | } | |
341 | ||
342 | /* Print TX Ring Summary */ | |
343 | if (!netdev || !netif_running(netdev)) | |
344 | goto exit; | |
345 | ||
346 | dev_info(&adapter->pdev->dev, "TX Rings Summary\n"); | |
347 | printk(KERN_INFO "Queue [NTU] [NTC] [bi(ntc)->dma ] " | |
348 | "leng ntw timestamp\n"); | |
349 | for (n = 0; n < adapter->num_tx_queues; n++) { | |
350 | tx_ring = adapter->tx_ring[n]; | |
351 | tx_buffer_info = | |
352 | &tx_ring->tx_buffer_info[tx_ring->next_to_clean]; | |
353 | printk(KERN_INFO " %5d %5X %5X %016llX %04X %3X %016llX\n", | |
354 | n, tx_ring->next_to_use, tx_ring->next_to_clean, | |
355 | (u64)tx_buffer_info->dma, | |
356 | tx_buffer_info->length, | |
357 | tx_buffer_info->next_to_watch, | |
358 | (u64)tx_buffer_info->time_stamp); | |
359 | } | |
360 | ||
361 | /* Print TX Rings */ | |
362 | if (!netif_msg_tx_done(adapter)) | |
363 | goto rx_ring_summary; | |
364 | ||
365 | dev_info(&adapter->pdev->dev, "TX Rings Dump\n"); | |
366 | ||
367 | /* Transmit Descriptor Formats | |
368 | * | |
369 | * Advanced Transmit Descriptor | |
370 | * +--------------------------------------------------------------+ | |
371 | * 0 | Buffer Address [63:0] | | |
372 | * +--------------------------------------------------------------+ | |
373 | * 8 | PAYLEN | PORTS | IDX | STA | DCMD |DTYP | RSV | DTALEN | | |
374 | * +--------------------------------------------------------------+ | |
375 | * 63 46 45 40 39 36 35 32 31 24 23 20 19 0 | |
376 | */ | |
377 | ||
378 | for (n = 0; n < adapter->num_tx_queues; n++) { | |
379 | tx_ring = adapter->tx_ring[n]; | |
380 | printk(KERN_INFO "------------------------------------\n"); | |
381 | printk(KERN_INFO "TX QUEUE INDEX = %d\n", tx_ring->queue_index); | |
382 | printk(KERN_INFO "------------------------------------\n"); | |
383 | printk(KERN_INFO "T [desc] [address 63:0 ] " | |
384 | "[PlPOIdStDDt Ln] [bi->dma ] " | |
385 | "leng ntw timestamp bi->skb\n"); | |
386 | ||
387 | for (i = 0; tx_ring->desc && (i < tx_ring->count); i++) { | |
388 | tx_desc = IXGBE_TX_DESC_ADV(*tx_ring, i); | |
389 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; | |
390 | u0 = (struct my_u0 *)tx_desc; | |
391 | printk(KERN_INFO "T [0x%03X] %016llX %016llX %016llX" | |
392 | " %04X %3X %016llX %p", i, | |
393 | le64_to_cpu(u0->a), | |
394 | le64_to_cpu(u0->b), | |
395 | (u64)tx_buffer_info->dma, | |
396 | tx_buffer_info->length, | |
397 | tx_buffer_info->next_to_watch, | |
398 | (u64)tx_buffer_info->time_stamp, | |
399 | tx_buffer_info->skb); | |
400 | if (i == tx_ring->next_to_use && | |
401 | i == tx_ring->next_to_clean) | |
402 | printk(KERN_CONT " NTC/U\n"); | |
403 | else if (i == tx_ring->next_to_use) | |
404 | printk(KERN_CONT " NTU\n"); | |
405 | else if (i == tx_ring->next_to_clean) | |
406 | printk(KERN_CONT " NTC\n"); | |
407 | else | |
408 | printk(KERN_CONT "\n"); | |
409 | ||
410 | if (netif_msg_pktdata(adapter) && | |
411 | tx_buffer_info->dma != 0) | |
412 | print_hex_dump(KERN_INFO, "", | |
413 | DUMP_PREFIX_ADDRESS, 16, 1, | |
414 | phys_to_virt(tx_buffer_info->dma), | |
415 | tx_buffer_info->length, true); | |
416 | } | |
417 | } | |
418 | ||
419 | /* Print RX Rings Summary */ | |
420 | rx_ring_summary: | |
421 | dev_info(&adapter->pdev->dev, "RX Rings Summary\n"); | |
422 | printk(KERN_INFO "Queue [NTU] [NTC]\n"); | |
423 | for (n = 0; n < adapter->num_rx_queues; n++) { | |
424 | rx_ring = adapter->rx_ring[n]; | |
425 | printk(KERN_INFO "%5d %5X %5X\n", n, | |
426 | rx_ring->next_to_use, rx_ring->next_to_clean); | |
427 | } | |
428 | ||
429 | /* Print RX Rings */ | |
430 | if (!netif_msg_rx_status(adapter)) | |
431 | goto exit; | |
432 | ||
433 | dev_info(&adapter->pdev->dev, "RX Rings Dump\n"); | |
434 | ||
435 | /* Advanced Receive Descriptor (Read) Format | |
436 | * 63 1 0 | |
437 | * +-----------------------------------------------------+ | |
438 | * 0 | Packet Buffer Address [63:1] |A0/NSE| | |
439 | * +----------------------------------------------+------+ | |
440 | * 8 | Header Buffer Address [63:1] | DD | | |
441 | * +-----------------------------------------------------+ | |
442 | * | |
443 | * | |
444 | * Advanced Receive Descriptor (Write-Back) Format | |
445 | * | |
446 | * 63 48 47 32 31 30 21 20 16 15 4 3 0 | |
447 | * +------------------------------------------------------+ | |
448 | * 0 | Packet IP |SPH| HDR_LEN | RSV|Packet| RSS | | |
449 | * | Checksum Ident | | | | Type | Type | | |
450 | * +------------------------------------------------------+ | |
451 | * 8 | VLAN Tag | Length | Extended Error | Extended Status | | |
452 | * +------------------------------------------------------+ | |
453 | * 63 48 47 32 31 20 19 0 | |
454 | */ | |
455 | for (n = 0; n < adapter->num_rx_queues; n++) { | |
456 | rx_ring = adapter->rx_ring[n]; | |
457 | printk(KERN_INFO "------------------------------------\n"); | |
458 | printk(KERN_INFO "RX QUEUE INDEX = %d\n", rx_ring->queue_index); | |
459 | printk(KERN_INFO "------------------------------------\n"); | |
460 | printk(KERN_INFO "R [desc] [ PktBuf A0] " | |
461 | "[ HeadBuf DD] [bi->dma ] [bi->skb] " | |
462 | "<-- Adv Rx Read format\n"); | |
463 | printk(KERN_INFO "RWB[desc] [PcsmIpSHl PtRs] " | |
464 | "[vl er S cks ln] ---------------- [bi->skb] " | |
465 | "<-- Adv Rx Write-Back format\n"); | |
466 | ||
467 | for (i = 0; i < rx_ring->count; i++) { | |
468 | rx_buffer_info = &rx_ring->rx_buffer_info[i]; | |
469 | rx_desc = IXGBE_RX_DESC_ADV(*rx_ring, i); | |
470 | u0 = (struct my_u0 *)rx_desc; | |
471 | staterr = le32_to_cpu(rx_desc->wb.upper.status_error); | |
472 | if (staterr & IXGBE_RXD_STAT_DD) { | |
473 | /* Descriptor Done */ | |
474 | printk(KERN_INFO "RWB[0x%03X] %016llX " | |
475 | "%016llX ---------------- %p", i, | |
476 | le64_to_cpu(u0->a), | |
477 | le64_to_cpu(u0->b), | |
478 | rx_buffer_info->skb); | |
479 | } else { | |
480 | printk(KERN_INFO "R [0x%03X] %016llX " | |
481 | "%016llX %016llX %p", i, | |
482 | le64_to_cpu(u0->a), | |
483 | le64_to_cpu(u0->b), | |
484 | (u64)rx_buffer_info->dma, | |
485 | rx_buffer_info->skb); | |
486 | ||
487 | if (netif_msg_pktdata(adapter)) { | |
488 | print_hex_dump(KERN_INFO, "", | |
489 | DUMP_PREFIX_ADDRESS, 16, 1, | |
490 | phys_to_virt(rx_buffer_info->dma), | |
491 | rx_ring->rx_buf_len, true); | |
492 | ||
493 | if (rx_ring->rx_buf_len | |
494 | < IXGBE_RXBUFFER_2048) | |
495 | print_hex_dump(KERN_INFO, "", | |
496 | DUMP_PREFIX_ADDRESS, 16, 1, | |
497 | phys_to_virt( | |
498 | rx_buffer_info->page_dma + | |
499 | rx_buffer_info->page_offset | |
500 | ), | |
501 | PAGE_SIZE/2, true); | |
502 | } | |
503 | } | |
504 | ||
505 | if (i == rx_ring->next_to_use) | |
506 | printk(KERN_CONT " NTU\n"); | |
507 | else if (i == rx_ring->next_to_clean) | |
508 | printk(KERN_CONT " NTC\n"); | |
509 | else | |
510 | printk(KERN_CONT "\n"); | |
511 | ||
512 | } | |
513 | } | |
514 | ||
515 | exit: | |
516 | return; | |
517 | } | |
518 | ||
5eba3699 AV |
519 | static void ixgbe_release_hw_control(struct ixgbe_adapter *adapter) |
520 | { | |
521 | u32 ctrl_ext; | |
522 | ||
523 | /* Let firmware take over control of h/w */ | |
524 | ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT); | |
525 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT, | |
b4617240 | 526 | ctrl_ext & ~IXGBE_CTRL_EXT_DRV_LOAD); |
5eba3699 AV |
527 | } |
528 | ||
529 | static void ixgbe_get_hw_control(struct ixgbe_adapter *adapter) | |
530 | { | |
531 | u32 ctrl_ext; | |
532 | ||
533 | /* Let firmware know the driver has taken over */ | |
534 | ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT); | |
535 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT, | |
b4617240 | 536 | ctrl_ext | IXGBE_CTRL_EXT_DRV_LOAD); |
5eba3699 | 537 | } |
9a799d71 | 538 | |
e8e26350 PW |
539 | /* |
540 | * ixgbe_set_ivar - set the IVAR registers, mapping interrupt causes to vectors | |
541 | * @adapter: pointer to adapter struct | |
542 | * @direction: 0 for Rx, 1 for Tx, -1 for other causes | |
543 | * @queue: queue to map the corresponding interrupt to | |
544 | * @msix_vector: the vector to map to the corresponding queue | |
545 | * | |
546 | */ | |
547 | static void ixgbe_set_ivar(struct ixgbe_adapter *adapter, s8 direction, | |
548 | u8 queue, u8 msix_vector) | |
9a799d71 AK |
549 | { |
550 | u32 ivar, index; | |
e8e26350 PW |
551 | struct ixgbe_hw *hw = &adapter->hw; |
552 | switch (hw->mac.type) { | |
553 | case ixgbe_mac_82598EB: | |
554 | msix_vector |= IXGBE_IVAR_ALLOC_VAL; | |
555 | if (direction == -1) | |
556 | direction = 0; | |
557 | index = (((direction * 64) + queue) >> 2) & 0x1F; | |
558 | ivar = IXGBE_READ_REG(hw, IXGBE_IVAR(index)); | |
559 | ivar &= ~(0xFF << (8 * (queue & 0x3))); | |
560 | ivar |= (msix_vector << (8 * (queue & 0x3))); | |
561 | IXGBE_WRITE_REG(hw, IXGBE_IVAR(index), ivar); | |
562 | break; | |
563 | case ixgbe_mac_82599EB: | |
564 | if (direction == -1) { | |
565 | /* other causes */ | |
566 | msix_vector |= IXGBE_IVAR_ALLOC_VAL; | |
567 | index = ((queue & 1) * 8); | |
568 | ivar = IXGBE_READ_REG(&adapter->hw, IXGBE_IVAR_MISC); | |
569 | ivar &= ~(0xFF << index); | |
570 | ivar |= (msix_vector << index); | |
571 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_IVAR_MISC, ivar); | |
572 | break; | |
573 | } else { | |
574 | /* tx or rx causes */ | |
575 | msix_vector |= IXGBE_IVAR_ALLOC_VAL; | |
576 | index = ((16 * (queue & 1)) + (8 * direction)); | |
577 | ivar = IXGBE_READ_REG(hw, IXGBE_IVAR(queue >> 1)); | |
578 | ivar &= ~(0xFF << index); | |
579 | ivar |= (msix_vector << index); | |
580 | IXGBE_WRITE_REG(hw, IXGBE_IVAR(queue >> 1), ivar); | |
581 | break; | |
582 | } | |
583 | default: | |
584 | break; | |
585 | } | |
9a799d71 AK |
586 | } |
587 | ||
fe49f04a AD |
588 | static inline void ixgbe_irq_rearm_queues(struct ixgbe_adapter *adapter, |
589 | u64 qmask) | |
590 | { | |
591 | u32 mask; | |
592 | ||
593 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { | |
594 | mask = (IXGBE_EIMS_RTX_QUEUE & qmask); | |
595 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS, mask); | |
596 | } else { | |
597 | mask = (qmask & 0xFFFFFFFF); | |
598 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS_EX(0), mask); | |
599 | mask = (qmask >> 32); | |
600 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS_EX(1), mask); | |
601 | } | |
602 | } | |
603 | ||
9a799d71 | 604 | static void ixgbe_unmap_and_free_tx_resource(struct ixgbe_adapter *adapter, |
b4617240 PW |
605 | struct ixgbe_tx_buffer |
606 | *tx_buffer_info) | |
9a799d71 | 607 | { |
e5a43549 AD |
608 | if (tx_buffer_info->dma) { |
609 | if (tx_buffer_info->mapped_as_page) | |
1b507730 | 610 | dma_unmap_page(&adapter->pdev->dev, |
e5a43549 AD |
611 | tx_buffer_info->dma, |
612 | tx_buffer_info->length, | |
1b507730 | 613 | DMA_TO_DEVICE); |
e5a43549 | 614 | else |
1b507730 | 615 | dma_unmap_single(&adapter->pdev->dev, |
e5a43549 AD |
616 | tx_buffer_info->dma, |
617 | tx_buffer_info->length, | |
1b507730 | 618 | DMA_TO_DEVICE); |
e5a43549 AD |
619 | tx_buffer_info->dma = 0; |
620 | } | |
9a799d71 AK |
621 | if (tx_buffer_info->skb) { |
622 | dev_kfree_skb_any(tx_buffer_info->skb); | |
623 | tx_buffer_info->skb = NULL; | |
624 | } | |
44df32c5 | 625 | tx_buffer_info->time_stamp = 0; |
9a799d71 AK |
626 | /* tx_buffer_info must be completely set up in the transmit path */ |
627 | } | |
628 | ||
26f23d82 | 629 | /** |
7483d9dd | 630 | * ixgbe_tx_xon_state - check the tx ring xon state |
26f23d82 YZ |
631 | * @adapter: the ixgbe adapter |
632 | * @tx_ring: the corresponding tx_ring | |
633 | * | |
634 | * If not in DCB mode, checks TFCS.TXOFF, otherwise, find out the | |
635 | * corresponding TC of this tx_ring when checking TFCS. | |
636 | * | |
7483d9dd | 637 | * Returns : true if in xon state (currently not paused) |
26f23d82 | 638 | */ |
7483d9dd | 639 | static inline bool ixgbe_tx_xon_state(struct ixgbe_adapter *adapter, |
26f23d82 YZ |
640 | struct ixgbe_ring *tx_ring) |
641 | { | |
26f23d82 YZ |
642 | u32 txoff = IXGBE_TFCS_TXOFF; |
643 | ||
644 | #ifdef CONFIG_IXGBE_DCB | |
ca739481 | 645 | if (adapter->dcb_cfg.pfc_mode_enable) { |
30b76832 | 646 | int tc; |
26f23d82 YZ |
647 | int reg_idx = tx_ring->reg_idx; |
648 | int dcb_i = adapter->ring_feature[RING_F_DCB].indices; | |
649 | ||
6837e895 PW |
650 | switch (adapter->hw.mac.type) { |
651 | case ixgbe_mac_82598EB: | |
26f23d82 YZ |
652 | tc = reg_idx >> 2; |
653 | txoff = IXGBE_TFCS_TXOFF0; | |
6837e895 PW |
654 | break; |
655 | case ixgbe_mac_82599EB: | |
26f23d82 YZ |
656 | tc = 0; |
657 | txoff = IXGBE_TFCS_TXOFF; | |
658 | if (dcb_i == 8) { | |
659 | /* TC0, TC1 */ | |
660 | tc = reg_idx >> 5; | |
661 | if (tc == 2) /* TC2, TC3 */ | |
662 | tc += (reg_idx - 64) >> 4; | |
663 | else if (tc == 3) /* TC4, TC5, TC6, TC7 */ | |
664 | tc += 1 + ((reg_idx - 96) >> 3); | |
665 | } else if (dcb_i == 4) { | |
666 | /* TC0, TC1 */ | |
667 | tc = reg_idx >> 6; | |
668 | if (tc == 1) { | |
669 | tc += (reg_idx - 64) >> 5; | |
670 | if (tc == 2) /* TC2, TC3 */ | |
671 | tc += (reg_idx - 96) >> 4; | |
672 | } | |
673 | } | |
6837e895 PW |
674 | break; |
675 | default: | |
676 | tc = 0; | |
26f23d82 YZ |
677 | } |
678 | txoff <<= tc; | |
679 | } | |
680 | #endif | |
681 | return IXGBE_READ_REG(&adapter->hw, IXGBE_TFCS) & txoff; | |
682 | } | |
683 | ||
9a799d71 | 684 | static inline bool ixgbe_check_tx_hang(struct ixgbe_adapter *adapter, |
b4617240 PW |
685 | struct ixgbe_ring *tx_ring, |
686 | unsigned int eop) | |
9a799d71 | 687 | { |
e01c31a5 | 688 | struct ixgbe_hw *hw = &adapter->hw; |
e01c31a5 | 689 | |
9a799d71 | 690 | /* Detect a transmit hang in hardware, this serializes the |
e01c31a5 | 691 | * check with the clearing of time_stamp and movement of eop */ |
9a799d71 | 692 | adapter->detect_tx_hung = false; |
44df32c5 | 693 | if (tx_ring->tx_buffer_info[eop].time_stamp && |
9a799d71 | 694 | time_after(jiffies, tx_ring->tx_buffer_info[eop].time_stamp + HZ) && |
7483d9dd | 695 | ixgbe_tx_xon_state(adapter, tx_ring)) { |
9a799d71 | 696 | /* detected Tx unit hang */ |
e01c31a5 JB |
697 | union ixgbe_adv_tx_desc *tx_desc; |
698 | tx_desc = IXGBE_TX_DESC_ADV(*tx_ring, eop); | |
396e799c | 699 | e_err(drv, "Detected Tx Unit Hang\n" |
849c4542 ET |
700 | " Tx Queue <%d>\n" |
701 | " TDH, TDT <%x>, <%x>\n" | |
702 | " next_to_use <%x>\n" | |
703 | " next_to_clean <%x>\n" | |
704 | "tx_buffer_info[next_to_clean]\n" | |
705 | " time_stamp <%lx>\n" | |
706 | " jiffies <%lx>\n", | |
707 | tx_ring->queue_index, | |
708 | IXGBE_READ_REG(hw, tx_ring->head), | |
709 | IXGBE_READ_REG(hw, tx_ring->tail), | |
710 | tx_ring->next_to_use, eop, | |
711 | tx_ring->tx_buffer_info[eop].time_stamp, jiffies); | |
9a799d71 AK |
712 | return true; |
713 | } | |
714 | ||
715 | return false; | |
716 | } | |
717 | ||
b4617240 PW |
718 | #define IXGBE_MAX_TXD_PWR 14 |
719 | #define IXGBE_MAX_DATA_PER_TXD (1 << IXGBE_MAX_TXD_PWR) | |
e092be60 AV |
720 | |
721 | /* Tx Descriptors needed, worst case */ | |
722 | #define TXD_USE_COUNT(S) (((S) >> IXGBE_MAX_TXD_PWR) + \ | |
723 | (((S) & (IXGBE_MAX_DATA_PER_TXD - 1)) ? 1 : 0)) | |
724 | #define DESC_NEEDED (TXD_USE_COUNT(IXGBE_MAX_DATA_PER_TXD) /* skb->data */ + \ | |
b4617240 | 725 | MAX_SKB_FRAGS * TXD_USE_COUNT(PAGE_SIZE) + 1) /* for context */ |
e092be60 | 726 | |
e01c31a5 JB |
727 | static void ixgbe_tx_timeout(struct net_device *netdev); |
728 | ||
9a799d71 AK |
729 | /** |
730 | * ixgbe_clean_tx_irq - Reclaim resources after transmit completes | |
fe49f04a | 731 | * @q_vector: structure containing interrupt and ring information |
e01c31a5 | 732 | * @tx_ring: tx ring to clean |
9a799d71 | 733 | **/ |
fe49f04a | 734 | static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector, |
e01c31a5 | 735 | struct ixgbe_ring *tx_ring) |
9a799d71 | 736 | { |
fe49f04a | 737 | struct ixgbe_adapter *adapter = q_vector->adapter; |
e01c31a5 | 738 | struct net_device *netdev = adapter->netdev; |
12207e49 PWJ |
739 | union ixgbe_adv_tx_desc *tx_desc, *eop_desc; |
740 | struct ixgbe_tx_buffer *tx_buffer_info; | |
741 | unsigned int i, eop, count = 0; | |
e01c31a5 | 742 | unsigned int total_bytes = 0, total_packets = 0; |
9a799d71 AK |
743 | |
744 | i = tx_ring->next_to_clean; | |
12207e49 PWJ |
745 | eop = tx_ring->tx_buffer_info[i].next_to_watch; |
746 | eop_desc = IXGBE_TX_DESC_ADV(*tx_ring, eop); | |
747 | ||
748 | while ((eop_desc->wb.status & cpu_to_le32(IXGBE_TXD_STAT_DD)) && | |
9a1a69ad | 749 | (count < tx_ring->work_limit)) { |
12207e49 PWJ |
750 | bool cleaned = false; |
751 | for ( ; !cleaned; count++) { | |
752 | struct sk_buff *skb; | |
9a799d71 AK |
753 | tx_desc = IXGBE_TX_DESC_ADV(*tx_ring, i); |
754 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; | |
12207e49 | 755 | cleaned = (i == eop); |
e01c31a5 | 756 | skb = tx_buffer_info->skb; |
9a799d71 | 757 | |
12207e49 | 758 | if (cleaned && skb) { |
e092be60 | 759 | unsigned int segs, bytecount; |
3d8fd385 | 760 | unsigned int hlen = skb_headlen(skb); |
e01c31a5 JB |
761 | |
762 | /* gso_segs is currently only valid for tcp */ | |
e092be60 | 763 | segs = skb_shinfo(skb)->gso_segs ?: 1; |
3d8fd385 YZ |
764 | #ifdef IXGBE_FCOE |
765 | /* adjust for FCoE Sequence Offload */ | |
766 | if ((adapter->flags & IXGBE_FLAG_FCOE_ENABLED) | |
767 | && (skb->protocol == htons(ETH_P_FCOE)) && | |
768 | skb_is_gso(skb)) { | |
769 | hlen = skb_transport_offset(skb) + | |
770 | sizeof(struct fc_frame_header) + | |
771 | sizeof(struct fcoe_crc_eof); | |
772 | segs = DIV_ROUND_UP(skb->len - hlen, | |
773 | skb_shinfo(skb)->gso_size); | |
774 | } | |
775 | #endif /* IXGBE_FCOE */ | |
e092be60 | 776 | /* multiply data chunks by size of headers */ |
3d8fd385 | 777 | bytecount = ((segs - 1) * hlen) + skb->len; |
e01c31a5 JB |
778 | total_packets += segs; |
779 | total_bytes += bytecount; | |
e092be60 | 780 | } |
e01c31a5 | 781 | |
9a799d71 | 782 | ixgbe_unmap_and_free_tx_resource(adapter, |
e01c31a5 | 783 | tx_buffer_info); |
9a799d71 | 784 | |
12207e49 PWJ |
785 | tx_desc->wb.status = 0; |
786 | ||
9a799d71 AK |
787 | i++; |
788 | if (i == tx_ring->count) | |
789 | i = 0; | |
e01c31a5 | 790 | } |
12207e49 PWJ |
791 | |
792 | eop = tx_ring->tx_buffer_info[i].next_to_watch; | |
793 | eop_desc = IXGBE_TX_DESC_ADV(*tx_ring, eop); | |
794 | } | |
795 | ||
9a799d71 AK |
796 | tx_ring->next_to_clean = i; |
797 | ||
e092be60 | 798 | #define TX_WAKE_THRESHOLD (DESC_NEEDED * 2) |
e01c31a5 JB |
799 | if (unlikely(count && netif_carrier_ok(netdev) && |
800 | (IXGBE_DESC_UNUSED(tx_ring) >= TX_WAKE_THRESHOLD))) { | |
e092be60 AV |
801 | /* Make sure that anybody stopping the queue after this |
802 | * sees the new next_to_clean. | |
803 | */ | |
804 | smp_mb(); | |
30eba97a AV |
805 | if (__netif_subqueue_stopped(netdev, tx_ring->queue_index) && |
806 | !test_bit(__IXGBE_DOWN, &adapter->state)) { | |
807 | netif_wake_subqueue(netdev, tx_ring->queue_index); | |
7ca3bc58 | 808 | ++tx_ring->restart_queue; |
30eba97a | 809 | } |
e092be60 | 810 | } |
9a799d71 | 811 | |
e01c31a5 JB |
812 | if (adapter->detect_tx_hung) { |
813 | if (ixgbe_check_tx_hang(adapter, tx_ring, i)) { | |
814 | /* schedule immediate reset if we believe we hung */ | |
396e799c ET |
815 | e_info(probe, "tx hang %d detected, resetting " |
816 | "adapter\n", adapter->tx_timeout_count + 1); | |
e01c31a5 JB |
817 | ixgbe_tx_timeout(adapter->netdev); |
818 | } | |
819 | } | |
9a799d71 | 820 | |
e01c31a5 | 821 | /* re-arm the interrupt */ |
fe49f04a AD |
822 | if (count >= tx_ring->work_limit) |
823 | ixgbe_irq_rearm_queues(adapter, ((u64)1 << q_vector->v_idx)); | |
9a799d71 | 824 | |
e01c31a5 JB |
825 | tx_ring->total_bytes += total_bytes; |
826 | tx_ring->total_packets += total_packets; | |
e01c31a5 | 827 | tx_ring->stats.packets += total_packets; |
12207e49 | 828 | tx_ring->stats.bytes += total_bytes; |
9a1a69ad | 829 | return (count < tx_ring->work_limit); |
9a799d71 AK |
830 | } |
831 | ||
5dd2d332 | 832 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd | 833 | static void ixgbe_update_rx_dca(struct ixgbe_adapter *adapter, |
b4617240 | 834 | struct ixgbe_ring *rx_ring) |
bd0362dd JC |
835 | { |
836 | u32 rxctrl; | |
837 | int cpu = get_cpu(); | |
4a0b9ca0 | 838 | int q = rx_ring->reg_idx; |
bd0362dd | 839 | |
3a581073 | 840 | if (rx_ring->cpu != cpu) { |
bd0362dd | 841 | rxctrl = IXGBE_READ_REG(&adapter->hw, IXGBE_DCA_RXCTRL(q)); |
e8e26350 PW |
842 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
843 | rxctrl &= ~IXGBE_DCA_RXCTRL_CPUID_MASK; | |
844 | rxctrl |= dca3_get_tag(&adapter->pdev->dev, cpu); | |
845 | } else if (adapter->hw.mac.type == ixgbe_mac_82599EB) { | |
846 | rxctrl &= ~IXGBE_DCA_RXCTRL_CPUID_MASK_82599; | |
847 | rxctrl |= (dca3_get_tag(&adapter->pdev->dev, cpu) << | |
848 | IXGBE_DCA_RXCTRL_CPUID_SHIFT_82599); | |
849 | } | |
bd0362dd JC |
850 | rxctrl |= IXGBE_DCA_RXCTRL_DESC_DCA_EN; |
851 | rxctrl |= IXGBE_DCA_RXCTRL_HEAD_DCA_EN; | |
15005a32 DS |
852 | rxctrl &= ~(IXGBE_DCA_RXCTRL_DESC_RRO_EN); |
853 | rxctrl &= ~(IXGBE_DCA_RXCTRL_DESC_WRO_EN | | |
e8e26350 | 854 | IXGBE_DCA_RXCTRL_DESC_HSRO_EN); |
bd0362dd | 855 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_RXCTRL(q), rxctrl); |
3a581073 | 856 | rx_ring->cpu = cpu; |
bd0362dd JC |
857 | } |
858 | put_cpu(); | |
859 | } | |
860 | ||
861 | static void ixgbe_update_tx_dca(struct ixgbe_adapter *adapter, | |
b4617240 | 862 | struct ixgbe_ring *tx_ring) |
bd0362dd JC |
863 | { |
864 | u32 txctrl; | |
865 | int cpu = get_cpu(); | |
4a0b9ca0 | 866 | int q = tx_ring->reg_idx; |
ee5f784a | 867 | struct ixgbe_hw *hw = &adapter->hw; |
bd0362dd | 868 | |
3a581073 | 869 | if (tx_ring->cpu != cpu) { |
e8e26350 | 870 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
ee5f784a | 871 | txctrl = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL(q)); |
e8e26350 PW |
872 | txctrl &= ~IXGBE_DCA_TXCTRL_CPUID_MASK; |
873 | txctrl |= dca3_get_tag(&adapter->pdev->dev, cpu); | |
ee5f784a DS |
874 | txctrl |= IXGBE_DCA_TXCTRL_DESC_DCA_EN; |
875 | IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL(q), txctrl); | |
e8e26350 | 876 | } else if (adapter->hw.mac.type == ixgbe_mac_82599EB) { |
ee5f784a | 877 | txctrl = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL_82599(q)); |
e8e26350 PW |
878 | txctrl &= ~IXGBE_DCA_TXCTRL_CPUID_MASK_82599; |
879 | txctrl |= (dca3_get_tag(&adapter->pdev->dev, cpu) << | |
ee5f784a DS |
880 | IXGBE_DCA_TXCTRL_CPUID_SHIFT_82599); |
881 | txctrl |= IXGBE_DCA_TXCTRL_DESC_DCA_EN; | |
882 | IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL_82599(q), txctrl); | |
e8e26350 | 883 | } |
3a581073 | 884 | tx_ring->cpu = cpu; |
bd0362dd JC |
885 | } |
886 | put_cpu(); | |
887 | } | |
888 | ||
889 | static void ixgbe_setup_dca(struct ixgbe_adapter *adapter) | |
890 | { | |
891 | int i; | |
892 | ||
893 | if (!(adapter->flags & IXGBE_FLAG_DCA_ENABLED)) | |
894 | return; | |
895 | ||
e35ec126 AD |
896 | /* always use CB2 mode, difference is masked in the CB driver */ |
897 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, 2); | |
898 | ||
bd0362dd | 899 | for (i = 0; i < adapter->num_tx_queues; i++) { |
4a0b9ca0 PW |
900 | adapter->tx_ring[i]->cpu = -1; |
901 | ixgbe_update_tx_dca(adapter, adapter->tx_ring[i]); | |
bd0362dd JC |
902 | } |
903 | for (i = 0; i < adapter->num_rx_queues; i++) { | |
4a0b9ca0 PW |
904 | adapter->rx_ring[i]->cpu = -1; |
905 | ixgbe_update_rx_dca(adapter, adapter->rx_ring[i]); | |
bd0362dd JC |
906 | } |
907 | } | |
908 | ||
909 | static int __ixgbe_notify_dca(struct device *dev, void *data) | |
910 | { | |
911 | struct net_device *netdev = dev_get_drvdata(dev); | |
912 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
913 | unsigned long event = *(unsigned long *)data; | |
914 | ||
915 | switch (event) { | |
916 | case DCA_PROVIDER_ADD: | |
96b0e0f6 JB |
917 | /* if we're already enabled, don't do it again */ |
918 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) | |
919 | break; | |
652f093f | 920 | if (dca_add_requester(dev) == 0) { |
96b0e0f6 | 921 | adapter->flags |= IXGBE_FLAG_DCA_ENABLED; |
bd0362dd JC |
922 | ixgbe_setup_dca(adapter); |
923 | break; | |
924 | } | |
925 | /* Fall Through since DCA is disabled. */ | |
926 | case DCA_PROVIDER_REMOVE: | |
927 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) { | |
928 | dca_remove_requester(dev); | |
929 | adapter->flags &= ~IXGBE_FLAG_DCA_ENABLED; | |
930 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, 1); | |
931 | } | |
932 | break; | |
933 | } | |
934 | ||
652f093f | 935 | return 0; |
bd0362dd JC |
936 | } |
937 | ||
5dd2d332 | 938 | #endif /* CONFIG_IXGBE_DCA */ |
9a799d71 AK |
939 | /** |
940 | * ixgbe_receive_skb - Send a completed packet up the stack | |
941 | * @adapter: board private structure | |
942 | * @skb: packet to send up | |
177db6ff MC |
943 | * @status: hardware indication of status of receive |
944 | * @rx_ring: rx descriptor ring (for a specific queue) to setup | |
945 | * @rx_desc: rx descriptor | |
9a799d71 | 946 | **/ |
78b6f4ce | 947 | static void ixgbe_receive_skb(struct ixgbe_q_vector *q_vector, |
b4617240 | 948 | struct sk_buff *skb, u8 status, |
fdaff1ce | 949 | struct ixgbe_ring *ring, |
177db6ff | 950 | union ixgbe_adv_rx_desc *rx_desc) |
9a799d71 | 951 | { |
78b6f4ce HX |
952 | struct ixgbe_adapter *adapter = q_vector->adapter; |
953 | struct napi_struct *napi = &q_vector->napi; | |
177db6ff MC |
954 | bool is_vlan = (status & IXGBE_RXD_STAT_VP); |
955 | u16 tag = le16_to_cpu(rx_desc->wb.upper.vlan); | |
9a799d71 | 956 | |
fdaff1ce | 957 | skb_record_rx_queue(skb, ring->queue_index); |
182ff8df | 958 | if (!(adapter->flags & IXGBE_FLAG_IN_NETPOLL)) { |
8a62babf | 959 | if (adapter->vlgrp && is_vlan && (tag & VLAN_VID_MASK)) |
78b6f4ce | 960 | vlan_gro_receive(napi, adapter->vlgrp, tag, skb); |
9a799d71 | 961 | else |
78b6f4ce | 962 | napi_gro_receive(napi, skb); |
177db6ff | 963 | } else { |
8a62babf | 964 | if (adapter->vlgrp && is_vlan && (tag & VLAN_VID_MASK)) |
182ff8df AD |
965 | vlan_hwaccel_rx(skb, adapter->vlgrp, tag); |
966 | else | |
967 | netif_rx(skb); | |
9a799d71 AK |
968 | } |
969 | } | |
970 | ||
e59bd25d AV |
971 | /** |
972 | * ixgbe_rx_checksum - indicate in skb if hw indicated a good cksum | |
973 | * @adapter: address of board private structure | |
974 | * @status_err: hardware indication of status of receive | |
975 | * @skb: skb currently being received and modified | |
976 | **/ | |
9a799d71 | 977 | static inline void ixgbe_rx_checksum(struct ixgbe_adapter *adapter, |
8bae1b2b DS |
978 | union ixgbe_adv_rx_desc *rx_desc, |
979 | struct sk_buff *skb) | |
9a799d71 | 980 | { |
8bae1b2b DS |
981 | u32 status_err = le32_to_cpu(rx_desc->wb.upper.status_error); |
982 | ||
9a799d71 AK |
983 | skb->ip_summed = CHECKSUM_NONE; |
984 | ||
712744be JB |
985 | /* Rx csum disabled */ |
986 | if (!(adapter->flags & IXGBE_FLAG_RX_CSUM_ENABLED)) | |
9a799d71 | 987 | return; |
e59bd25d AV |
988 | |
989 | /* if IP and error */ | |
990 | if ((status_err & IXGBE_RXD_STAT_IPCS) && | |
991 | (status_err & IXGBE_RXDADV_ERR_IPE)) { | |
9a799d71 AK |
992 | adapter->hw_csum_rx_error++; |
993 | return; | |
994 | } | |
e59bd25d AV |
995 | |
996 | if (!(status_err & IXGBE_RXD_STAT_L4CS)) | |
997 | return; | |
998 | ||
999 | if (status_err & IXGBE_RXDADV_ERR_TCPE) { | |
8bae1b2b DS |
1000 | u16 pkt_info = rx_desc->wb.lower.lo_dword.hs_rss.pkt_info; |
1001 | ||
1002 | /* | |
1003 | * 82599 errata, UDP frames with a 0 checksum can be marked as | |
1004 | * checksum errors. | |
1005 | */ | |
1006 | if ((pkt_info & IXGBE_RXDADV_PKTTYPE_UDP) && | |
1007 | (adapter->hw.mac.type == ixgbe_mac_82599EB)) | |
1008 | return; | |
1009 | ||
e59bd25d AV |
1010 | adapter->hw_csum_rx_error++; |
1011 | return; | |
1012 | } | |
1013 | ||
9a799d71 | 1014 | /* It must be a TCP or UDP packet with a valid checksum */ |
e59bd25d | 1015 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
9a799d71 AK |
1016 | } |
1017 | ||
e8e26350 PW |
1018 | static inline void ixgbe_release_rx_desc(struct ixgbe_hw *hw, |
1019 | struct ixgbe_ring *rx_ring, u32 val) | |
1020 | { | |
1021 | /* | |
1022 | * Force memory writes to complete before letting h/w | |
1023 | * know there are new descriptors to fetch. (Only | |
1024 | * applicable for weak-ordered memory model archs, | |
1025 | * such as IA-64). | |
1026 | */ | |
1027 | wmb(); | |
1028 | IXGBE_WRITE_REG(hw, IXGBE_RDT(rx_ring->reg_idx), val); | |
1029 | } | |
1030 | ||
9a799d71 AK |
1031 | /** |
1032 | * ixgbe_alloc_rx_buffers - Replace used receive buffers; packet split | |
1033 | * @adapter: address of board private structure | |
1034 | **/ | |
1035 | static void ixgbe_alloc_rx_buffers(struct ixgbe_adapter *adapter, | |
7c6e0a43 JB |
1036 | struct ixgbe_ring *rx_ring, |
1037 | int cleaned_count) | |
9a799d71 | 1038 | { |
9a799d71 AK |
1039 | struct pci_dev *pdev = adapter->pdev; |
1040 | union ixgbe_adv_rx_desc *rx_desc; | |
3a581073 | 1041 | struct ixgbe_rx_buffer *bi; |
9a799d71 | 1042 | unsigned int i; |
9a799d71 AK |
1043 | |
1044 | i = rx_ring->next_to_use; | |
3a581073 | 1045 | bi = &rx_ring->rx_buffer_info[i]; |
9a799d71 AK |
1046 | |
1047 | while (cleaned_count--) { | |
1048 | rx_desc = IXGBE_RX_DESC_ADV(*rx_ring, i); | |
1049 | ||
762f4c57 | 1050 | if (!bi->page_dma && |
6e455b89 | 1051 | (rx_ring->flags & IXGBE_RING_RX_PS_ENABLED)) { |
3a581073 | 1052 | if (!bi->page) { |
762f4c57 JB |
1053 | bi->page = alloc_page(GFP_ATOMIC); |
1054 | if (!bi->page) { | |
1055 | adapter->alloc_rx_page_failed++; | |
1056 | goto no_buffers; | |
1057 | } | |
1058 | bi->page_offset = 0; | |
1059 | } else { | |
1060 | /* use a half page if we're re-using */ | |
1061 | bi->page_offset ^= (PAGE_SIZE / 2); | |
9a799d71 | 1062 | } |
762f4c57 | 1063 | |
1b507730 | 1064 | bi->page_dma = dma_map_page(&pdev->dev, bi->page, |
762f4c57 JB |
1065 | bi->page_offset, |
1066 | (PAGE_SIZE / 2), | |
1b507730 | 1067 | DMA_FROM_DEVICE); |
9a799d71 AK |
1068 | } |
1069 | ||
3a581073 | 1070 | if (!bi->skb) { |
5ecc3614 | 1071 | struct sk_buff *skb; |
7ca3bc58 JB |
1072 | /* netdev_alloc_skb reserves 32 bytes up front!! */ |
1073 | uint bufsz = rx_ring->rx_buf_len + SMP_CACHE_BYTES; | |
1074 | skb = netdev_alloc_skb(adapter->netdev, bufsz); | |
9a799d71 AK |
1075 | |
1076 | if (!skb) { | |
1077 | adapter->alloc_rx_buff_failed++; | |
1078 | goto no_buffers; | |
1079 | } | |
1080 | ||
7ca3bc58 JB |
1081 | /* advance the data pointer to the next cache line */ |
1082 | skb_reserve(skb, (PTR_ALIGN(skb->data, SMP_CACHE_BYTES) | |
1083 | - skb->data)); | |
1084 | ||
3a581073 | 1085 | bi->skb = skb; |
1b507730 | 1086 | bi->dma = dma_map_single(&pdev->dev, skb->data, |
4f57ca6e | 1087 | rx_ring->rx_buf_len, |
1b507730 | 1088 | DMA_FROM_DEVICE); |
9a799d71 AK |
1089 | } |
1090 | /* Refresh the desc even if buffer_addrs didn't change because | |
1091 | * each write-back erases this info. */ | |
6e455b89 | 1092 | if (rx_ring->flags & IXGBE_RING_RX_PS_ENABLED) { |
3a581073 JB |
1093 | rx_desc->read.pkt_addr = cpu_to_le64(bi->page_dma); |
1094 | rx_desc->read.hdr_addr = cpu_to_le64(bi->dma); | |
9a799d71 | 1095 | } else { |
3a581073 | 1096 | rx_desc->read.pkt_addr = cpu_to_le64(bi->dma); |
9a799d71 AK |
1097 | } |
1098 | ||
1099 | i++; | |
1100 | if (i == rx_ring->count) | |
1101 | i = 0; | |
3a581073 | 1102 | bi = &rx_ring->rx_buffer_info[i]; |
9a799d71 | 1103 | } |
7c6e0a43 | 1104 | |
9a799d71 AK |
1105 | no_buffers: |
1106 | if (rx_ring->next_to_use != i) { | |
1107 | rx_ring->next_to_use = i; | |
1108 | if (i-- == 0) | |
1109 | i = (rx_ring->count - 1); | |
1110 | ||
e8e26350 | 1111 | ixgbe_release_rx_desc(&adapter->hw, rx_ring, i); |
9a799d71 AK |
1112 | } |
1113 | } | |
1114 | ||
7c6e0a43 JB |
1115 | static inline u16 ixgbe_get_hdr_info(union ixgbe_adv_rx_desc *rx_desc) |
1116 | { | |
1117 | return rx_desc->wb.lower.lo_dword.hs_rss.hdr_info; | |
1118 | } | |
1119 | ||
1120 | static inline u16 ixgbe_get_pkt_info(union ixgbe_adv_rx_desc *rx_desc) | |
1121 | { | |
1122 | return rx_desc->wb.lower.lo_dword.hs_rss.pkt_info; | |
1123 | } | |
1124 | ||
f8212f97 AD |
1125 | static inline u32 ixgbe_get_rsc_count(union ixgbe_adv_rx_desc *rx_desc) |
1126 | { | |
1127 | return (le32_to_cpu(rx_desc->wb.lower.lo_dword.data) & | |
1128 | IXGBE_RXDADV_RSCCNT_MASK) >> | |
1129 | IXGBE_RXDADV_RSCCNT_SHIFT; | |
1130 | } | |
1131 | ||
1132 | /** | |
1133 | * ixgbe_transform_rsc_queue - change rsc queue into a full packet | |
1134 | * @skb: pointer to the last skb in the rsc queue | |
94b982b2 | 1135 | * @count: pointer to number of packets coalesced in this context |
f8212f97 AD |
1136 | * |
1137 | * This function changes a queue full of hw rsc buffers into a completed | |
1138 | * packet. It uses the ->prev pointers to find the first packet and then | |
1139 | * turns it into the frag list owner. | |
1140 | **/ | |
94b982b2 MC |
1141 | static inline struct sk_buff *ixgbe_transform_rsc_queue(struct sk_buff *skb, |
1142 | u64 *count) | |
f8212f97 AD |
1143 | { |
1144 | unsigned int frag_list_size = 0; | |
1145 | ||
1146 | while (skb->prev) { | |
1147 | struct sk_buff *prev = skb->prev; | |
1148 | frag_list_size += skb->len; | |
1149 | skb->prev = NULL; | |
1150 | skb = prev; | |
94b982b2 | 1151 | *count += 1; |
f8212f97 AD |
1152 | } |
1153 | ||
1154 | skb_shinfo(skb)->frag_list = skb->next; | |
1155 | skb->next = NULL; | |
1156 | skb->len += frag_list_size; | |
1157 | skb->data_len += frag_list_size; | |
1158 | skb->truesize += frag_list_size; | |
1159 | return skb; | |
1160 | } | |
1161 | ||
43634e82 MC |
1162 | struct ixgbe_rsc_cb { |
1163 | dma_addr_t dma; | |
e8171aaa | 1164 | bool delay_unmap; |
43634e82 MC |
1165 | }; |
1166 | ||
1167 | #define IXGBE_RSC_CB(skb) ((struct ixgbe_rsc_cb *)(skb)->cb) | |
1168 | ||
78b6f4ce | 1169 | static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector, |
b4617240 PW |
1170 | struct ixgbe_ring *rx_ring, |
1171 | int *work_done, int work_to_do) | |
9a799d71 | 1172 | { |
78b6f4ce | 1173 | struct ixgbe_adapter *adapter = q_vector->adapter; |
2d86f139 | 1174 | struct net_device *netdev = adapter->netdev; |
9a799d71 AK |
1175 | struct pci_dev *pdev = adapter->pdev; |
1176 | union ixgbe_adv_rx_desc *rx_desc, *next_rxd; | |
1177 | struct ixgbe_rx_buffer *rx_buffer_info, *next_buffer; | |
1178 | struct sk_buff *skb; | |
f8212f97 | 1179 | unsigned int i, rsc_count = 0; |
7c6e0a43 | 1180 | u32 len, staterr; |
177db6ff MC |
1181 | u16 hdr_info; |
1182 | bool cleaned = false; | |
9a799d71 | 1183 | int cleaned_count = 0; |
d2f4fbe2 | 1184 | unsigned int total_rx_bytes = 0, total_rx_packets = 0; |
3d8fd385 YZ |
1185 | #ifdef IXGBE_FCOE |
1186 | int ddp_bytes = 0; | |
1187 | #endif /* IXGBE_FCOE */ | |
9a799d71 AK |
1188 | |
1189 | i = rx_ring->next_to_clean; | |
9a799d71 AK |
1190 | rx_desc = IXGBE_RX_DESC_ADV(*rx_ring, i); |
1191 | staterr = le32_to_cpu(rx_desc->wb.upper.status_error); | |
1192 | rx_buffer_info = &rx_ring->rx_buffer_info[i]; | |
9a799d71 AK |
1193 | |
1194 | while (staterr & IXGBE_RXD_STAT_DD) { | |
7c6e0a43 | 1195 | u32 upper_len = 0; |
9a799d71 AK |
1196 | if (*work_done >= work_to_do) |
1197 | break; | |
1198 | (*work_done)++; | |
1199 | ||
3c945e5b | 1200 | rmb(); /* read descriptor and rx_buffer_info after status DD */ |
6e455b89 | 1201 | if (rx_ring->flags & IXGBE_RING_RX_PS_ENABLED) { |
7c6e0a43 JB |
1202 | hdr_info = le16_to_cpu(ixgbe_get_hdr_info(rx_desc)); |
1203 | len = (hdr_info & IXGBE_RXDADV_HDRBUFLEN_MASK) >> | |
762f4c57 | 1204 | IXGBE_RXDADV_HDRBUFLEN_SHIFT; |
9a799d71 | 1205 | upper_len = le16_to_cpu(rx_desc->wb.upper.length); |
0b746e08 SN |
1206 | if ((len > IXGBE_RX_HDR_SIZE) || |
1207 | (upper_len && !(hdr_info & IXGBE_RXDADV_SPH))) | |
1208 | len = IXGBE_RX_HDR_SIZE; | |
7c6e0a43 | 1209 | } else { |
9a799d71 | 1210 | len = le16_to_cpu(rx_desc->wb.upper.length); |
7c6e0a43 | 1211 | } |
9a799d71 AK |
1212 | |
1213 | cleaned = true; | |
1214 | skb = rx_buffer_info->skb; | |
7ca3bc58 | 1215 | prefetch(skb->data); |
9a799d71 AK |
1216 | rx_buffer_info->skb = NULL; |
1217 | ||
21fa4e66 | 1218 | if (rx_buffer_info->dma) { |
43634e82 MC |
1219 | if ((adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) && |
1220 | (!(staterr & IXGBE_RXD_STAT_EOP)) && | |
e8171aaa | 1221 | (!(skb->prev))) { |
43634e82 MC |
1222 | /* |
1223 | * When HWRSC is enabled, delay unmapping | |
1224 | * of the first packet. It carries the | |
1225 | * header information, HW may still | |
1226 | * access the header after the writeback. | |
1227 | * Only unmap it when EOP is reached | |
1228 | */ | |
e8171aaa | 1229 | IXGBE_RSC_CB(skb)->delay_unmap = true; |
43634e82 | 1230 | IXGBE_RSC_CB(skb)->dma = rx_buffer_info->dma; |
e8171aaa | 1231 | } else { |
1b507730 | 1232 | dma_unmap_single(&pdev->dev, |
e8171aaa | 1233 | rx_buffer_info->dma, |
43634e82 | 1234 | rx_ring->rx_buf_len, |
e8171aaa MC |
1235 | DMA_FROM_DEVICE); |
1236 | } | |
4f57ca6e | 1237 | rx_buffer_info->dma = 0; |
9a799d71 AK |
1238 | skb_put(skb, len); |
1239 | } | |
1240 | ||
1241 | if (upper_len) { | |
1b507730 NN |
1242 | dma_unmap_page(&pdev->dev, rx_buffer_info->page_dma, |
1243 | PAGE_SIZE / 2, DMA_FROM_DEVICE); | |
9a799d71 AK |
1244 | rx_buffer_info->page_dma = 0; |
1245 | skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags, | |
762f4c57 JB |
1246 | rx_buffer_info->page, |
1247 | rx_buffer_info->page_offset, | |
1248 | upper_len); | |
1249 | ||
1250 | if ((rx_ring->rx_buf_len > (PAGE_SIZE / 2)) || | |
1251 | (page_count(rx_buffer_info->page) != 1)) | |
1252 | rx_buffer_info->page = NULL; | |
1253 | else | |
1254 | get_page(rx_buffer_info->page); | |
9a799d71 AK |
1255 | |
1256 | skb->len += upper_len; | |
1257 | skb->data_len += upper_len; | |
1258 | skb->truesize += upper_len; | |
1259 | } | |
1260 | ||
1261 | i++; | |
1262 | if (i == rx_ring->count) | |
1263 | i = 0; | |
9a799d71 AK |
1264 | |
1265 | next_rxd = IXGBE_RX_DESC_ADV(*rx_ring, i); | |
1266 | prefetch(next_rxd); | |
9a799d71 | 1267 | cleaned_count++; |
f8212f97 | 1268 | |
0c19d6af | 1269 | if (adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE) |
f8212f97 AD |
1270 | rsc_count = ixgbe_get_rsc_count(rx_desc); |
1271 | ||
1272 | if (rsc_count) { | |
1273 | u32 nextp = (staterr & IXGBE_RXDADV_NEXTP_MASK) >> | |
1274 | IXGBE_RXDADV_NEXTP_SHIFT; | |
1275 | next_buffer = &rx_ring->rx_buffer_info[nextp]; | |
f8212f97 AD |
1276 | } else { |
1277 | next_buffer = &rx_ring->rx_buffer_info[i]; | |
1278 | } | |
1279 | ||
9a799d71 | 1280 | if (staterr & IXGBE_RXD_STAT_EOP) { |
f8212f97 | 1281 | if (skb->prev) |
94b982b2 MC |
1282 | skb = ixgbe_transform_rsc_queue(skb, &(rx_ring->rsc_count)); |
1283 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) { | |
e8171aaa | 1284 | if (IXGBE_RSC_CB(skb)->delay_unmap) { |
1b507730 NN |
1285 | dma_unmap_single(&pdev->dev, |
1286 | IXGBE_RSC_CB(skb)->dma, | |
43634e82 | 1287 | rx_ring->rx_buf_len, |
1b507730 | 1288 | DMA_FROM_DEVICE); |
fd3686a8 | 1289 | IXGBE_RSC_CB(skb)->dma = 0; |
e8171aaa | 1290 | IXGBE_RSC_CB(skb)->delay_unmap = false; |
fd3686a8 | 1291 | } |
94b982b2 MC |
1292 | if (rx_ring->flags & IXGBE_RING_RX_PS_ENABLED) |
1293 | rx_ring->rsc_count += skb_shinfo(skb)->nr_frags; | |
1294 | else | |
1295 | rx_ring->rsc_count++; | |
1296 | rx_ring->rsc_flush++; | |
1297 | } | |
9a799d71 AK |
1298 | rx_ring->stats.packets++; |
1299 | rx_ring->stats.bytes += skb->len; | |
1300 | } else { | |
6e455b89 | 1301 | if (rx_ring->flags & IXGBE_RING_RX_PS_ENABLED) { |
f8212f97 AD |
1302 | rx_buffer_info->skb = next_buffer->skb; |
1303 | rx_buffer_info->dma = next_buffer->dma; | |
1304 | next_buffer->skb = skb; | |
1305 | next_buffer->dma = 0; | |
1306 | } else { | |
1307 | skb->next = next_buffer->skb; | |
1308 | skb->next->prev = skb; | |
1309 | } | |
7ca3bc58 | 1310 | rx_ring->non_eop_descs++; |
9a799d71 AK |
1311 | goto next_desc; |
1312 | } | |
1313 | ||
1314 | if (staterr & IXGBE_RXDADV_ERR_FRAME_ERR_MASK) { | |
1315 | dev_kfree_skb_irq(skb); | |
1316 | goto next_desc; | |
1317 | } | |
1318 | ||
8bae1b2b | 1319 | ixgbe_rx_checksum(adapter, rx_desc, skb); |
d2f4fbe2 AV |
1320 | |
1321 | /* probably a little skewed due to removing CRC */ | |
1322 | total_rx_bytes += skb->len; | |
1323 | total_rx_packets++; | |
1324 | ||
74ce8dd2 | 1325 | skb->protocol = eth_type_trans(skb, adapter->netdev); |
332d4a7d YZ |
1326 | #ifdef IXGBE_FCOE |
1327 | /* if ddp, not passing to ULD unless for FCP_RSP or error */ | |
3d8fd385 YZ |
1328 | if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) { |
1329 | ddp_bytes = ixgbe_fcoe_ddp(adapter, rx_desc, skb); | |
1330 | if (!ddp_bytes) | |
332d4a7d | 1331 | goto next_desc; |
3d8fd385 | 1332 | } |
332d4a7d | 1333 | #endif /* IXGBE_FCOE */ |
fdaff1ce | 1334 | ixgbe_receive_skb(q_vector, skb, staterr, rx_ring, rx_desc); |
9a799d71 AK |
1335 | |
1336 | next_desc: | |
1337 | rx_desc->wb.upper.status_error = 0; | |
1338 | ||
1339 | /* return some buffers to hardware, one at a time is too slow */ | |
1340 | if (cleaned_count >= IXGBE_RX_BUFFER_WRITE) { | |
1341 | ixgbe_alloc_rx_buffers(adapter, rx_ring, cleaned_count); | |
1342 | cleaned_count = 0; | |
1343 | } | |
1344 | ||
1345 | /* use prefetched values */ | |
1346 | rx_desc = next_rxd; | |
f8212f97 | 1347 | rx_buffer_info = &rx_ring->rx_buffer_info[i]; |
9a799d71 AK |
1348 | |
1349 | staterr = le32_to_cpu(rx_desc->wb.upper.status_error); | |
177db6ff MC |
1350 | } |
1351 | ||
9a799d71 AK |
1352 | rx_ring->next_to_clean = i; |
1353 | cleaned_count = IXGBE_DESC_UNUSED(rx_ring); | |
1354 | ||
1355 | if (cleaned_count) | |
1356 | ixgbe_alloc_rx_buffers(adapter, rx_ring, cleaned_count); | |
1357 | ||
3d8fd385 YZ |
1358 | #ifdef IXGBE_FCOE |
1359 | /* include DDPed FCoE data */ | |
1360 | if (ddp_bytes > 0) { | |
1361 | unsigned int mss; | |
1362 | ||
1363 | mss = adapter->netdev->mtu - sizeof(struct fcoe_hdr) - | |
1364 | sizeof(struct fc_frame_header) - | |
1365 | sizeof(struct fcoe_crc_eof); | |
1366 | if (mss > 512) | |
1367 | mss &= ~511; | |
1368 | total_rx_bytes += ddp_bytes; | |
1369 | total_rx_packets += DIV_ROUND_UP(ddp_bytes, mss); | |
1370 | } | |
1371 | #endif /* IXGBE_FCOE */ | |
1372 | ||
f494e8fa AV |
1373 | rx_ring->total_packets += total_rx_packets; |
1374 | rx_ring->total_bytes += total_rx_bytes; | |
2d86f139 AK |
1375 | netdev->stats.rx_bytes += total_rx_bytes; |
1376 | netdev->stats.rx_packets += total_rx_packets; | |
f494e8fa | 1377 | |
9a799d71 AK |
1378 | return cleaned; |
1379 | } | |
1380 | ||
021230d4 | 1381 | static int ixgbe_clean_rxonly(struct napi_struct *, int); |
9a799d71 AK |
1382 | /** |
1383 | * ixgbe_configure_msix - Configure MSI-X hardware | |
1384 | * @adapter: board private structure | |
1385 | * | |
1386 | * ixgbe_configure_msix sets up the hardware to properly generate MSI-X | |
1387 | * interrupts. | |
1388 | **/ | |
1389 | static void ixgbe_configure_msix(struct ixgbe_adapter *adapter) | |
1390 | { | |
021230d4 AV |
1391 | struct ixgbe_q_vector *q_vector; |
1392 | int i, j, q_vectors, v_idx, r_idx; | |
1393 | u32 mask; | |
9a799d71 | 1394 | |
021230d4 | 1395 | q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; |
9a799d71 | 1396 | |
4df10466 JB |
1397 | /* |
1398 | * Populate the IVAR table and set the ITR values to the | |
021230d4 AV |
1399 | * corresponding register. |
1400 | */ | |
1401 | for (v_idx = 0; v_idx < q_vectors; v_idx++) { | |
7a921c93 | 1402 | q_vector = adapter->q_vector[v_idx]; |
984b3f57 | 1403 | /* XXX for_each_set_bit(...) */ |
021230d4 | 1404 | r_idx = find_first_bit(q_vector->rxr_idx, |
b4617240 | 1405 | adapter->num_rx_queues); |
021230d4 AV |
1406 | |
1407 | for (i = 0; i < q_vector->rxr_count; i++) { | |
4a0b9ca0 | 1408 | j = adapter->rx_ring[r_idx]->reg_idx; |
e8e26350 | 1409 | ixgbe_set_ivar(adapter, 0, j, v_idx); |
021230d4 | 1410 | r_idx = find_next_bit(q_vector->rxr_idx, |
b4617240 PW |
1411 | adapter->num_rx_queues, |
1412 | r_idx + 1); | |
021230d4 AV |
1413 | } |
1414 | r_idx = find_first_bit(q_vector->txr_idx, | |
b4617240 | 1415 | adapter->num_tx_queues); |
021230d4 AV |
1416 | |
1417 | for (i = 0; i < q_vector->txr_count; i++) { | |
4a0b9ca0 | 1418 | j = adapter->tx_ring[r_idx]->reg_idx; |
e8e26350 | 1419 | ixgbe_set_ivar(adapter, 1, j, v_idx); |
021230d4 | 1420 | r_idx = find_next_bit(q_vector->txr_idx, |
b4617240 PW |
1421 | adapter->num_tx_queues, |
1422 | r_idx + 1); | |
021230d4 AV |
1423 | } |
1424 | ||
021230d4 | 1425 | if (q_vector->txr_count && !q_vector->rxr_count) |
f7554a2b NS |
1426 | /* tx only */ |
1427 | q_vector->eitr = adapter->tx_eitr_param; | |
509ee935 | 1428 | else if (q_vector->rxr_count) |
f7554a2b NS |
1429 | /* rx or mixed */ |
1430 | q_vector->eitr = adapter->rx_eitr_param; | |
021230d4 | 1431 | |
fe49f04a | 1432 | ixgbe_write_eitr(q_vector); |
9a799d71 AK |
1433 | } |
1434 | ||
e8e26350 PW |
1435 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) |
1436 | ixgbe_set_ivar(adapter, -1, IXGBE_IVAR_OTHER_CAUSES_INDEX, | |
1437 | v_idx); | |
1438 | else if (adapter->hw.mac.type == ixgbe_mac_82599EB) | |
1439 | ixgbe_set_ivar(adapter, -1, 1, v_idx); | |
021230d4 AV |
1440 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITR(v_idx), 1950); |
1441 | ||
41fb9248 | 1442 | /* set up to autoclear timer, and the vectors */ |
021230d4 | 1443 | mask = IXGBE_EIMS_ENABLE_MASK; |
1cdd1ec8 GR |
1444 | if (adapter->num_vfs) |
1445 | mask &= ~(IXGBE_EIMS_OTHER | | |
1446 | IXGBE_EIMS_MAILBOX | | |
1447 | IXGBE_EIMS_LSC); | |
1448 | else | |
1449 | mask &= ~(IXGBE_EIMS_OTHER | IXGBE_EIMS_LSC); | |
021230d4 | 1450 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIAC, mask); |
9a799d71 AK |
1451 | } |
1452 | ||
f494e8fa AV |
1453 | enum latency_range { |
1454 | lowest_latency = 0, | |
1455 | low_latency = 1, | |
1456 | bulk_latency = 2, | |
1457 | latency_invalid = 255 | |
1458 | }; | |
1459 | ||
1460 | /** | |
1461 | * ixgbe_update_itr - update the dynamic ITR value based on statistics | |
1462 | * @adapter: pointer to adapter | |
1463 | * @eitr: eitr setting (ints per sec) to give last timeslice | |
1464 | * @itr_setting: current throttle rate in ints/second | |
1465 | * @packets: the number of packets during this measurement interval | |
1466 | * @bytes: the number of bytes during this measurement interval | |
1467 | * | |
1468 | * Stores a new ITR value based on packets and byte | |
1469 | * counts during the last interrupt. The advantage of per interrupt | |
1470 | * computation is faster updates and more accurate ITR for the current | |
1471 | * traffic pattern. Constants in this function were computed | |
1472 | * based on theoretical maximum wire speed and thresholds were set based | |
1473 | * on testing data as well as attempting to minimize response time | |
1474 | * while increasing bulk throughput. | |
1475 | * this functionality is controlled by the InterruptThrottleRate module | |
1476 | * parameter (see ixgbe_param.c) | |
1477 | **/ | |
1478 | static u8 ixgbe_update_itr(struct ixgbe_adapter *adapter, | |
b4617240 PW |
1479 | u32 eitr, u8 itr_setting, |
1480 | int packets, int bytes) | |
f494e8fa AV |
1481 | { |
1482 | unsigned int retval = itr_setting; | |
1483 | u32 timepassed_us; | |
1484 | u64 bytes_perint; | |
1485 | ||
1486 | if (packets == 0) | |
1487 | goto update_itr_done; | |
1488 | ||
1489 | ||
1490 | /* simple throttlerate management | |
1491 | * 0-20MB/s lowest (100000 ints/s) | |
1492 | * 20-100MB/s low (20000 ints/s) | |
1493 | * 100-1249MB/s bulk (8000 ints/s) | |
1494 | */ | |
1495 | /* what was last interrupt timeslice? */ | |
1496 | timepassed_us = 1000000/eitr; | |
1497 | bytes_perint = bytes / timepassed_us; /* bytes/usec */ | |
1498 | ||
1499 | switch (itr_setting) { | |
1500 | case lowest_latency: | |
1501 | if (bytes_perint > adapter->eitr_low) | |
1502 | retval = low_latency; | |
1503 | break; | |
1504 | case low_latency: | |
1505 | if (bytes_perint > adapter->eitr_high) | |
1506 | retval = bulk_latency; | |
1507 | else if (bytes_perint <= adapter->eitr_low) | |
1508 | retval = lowest_latency; | |
1509 | break; | |
1510 | case bulk_latency: | |
1511 | if (bytes_perint <= adapter->eitr_high) | |
1512 | retval = low_latency; | |
1513 | break; | |
1514 | } | |
1515 | ||
1516 | update_itr_done: | |
1517 | return retval; | |
1518 | } | |
1519 | ||
509ee935 JB |
1520 | /** |
1521 | * ixgbe_write_eitr - write EITR register in hardware specific way | |
fe49f04a | 1522 | * @q_vector: structure containing interrupt and ring information |
509ee935 JB |
1523 | * |
1524 | * This function is made to be called by ethtool and by the driver | |
1525 | * when it needs to update EITR registers at runtime. Hardware | |
1526 | * specific quirks/differences are taken care of here. | |
1527 | */ | |
fe49f04a | 1528 | void ixgbe_write_eitr(struct ixgbe_q_vector *q_vector) |
509ee935 | 1529 | { |
fe49f04a | 1530 | struct ixgbe_adapter *adapter = q_vector->adapter; |
509ee935 | 1531 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a AD |
1532 | int v_idx = q_vector->v_idx; |
1533 | u32 itr_reg = EITR_INTS_PER_SEC_TO_REG(q_vector->eitr); | |
1534 | ||
509ee935 JB |
1535 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
1536 | /* must write high and low 16 bits to reset counter */ | |
1537 | itr_reg |= (itr_reg << 16); | |
1538 | } else if (adapter->hw.mac.type == ixgbe_mac_82599EB) { | |
f8d1dcaf JB |
1539 | /* |
1540 | * 82599 can support a value of zero, so allow it for | |
1541 | * max interrupt rate, but there is an errata where it can | |
1542 | * not be zero with RSC | |
1543 | */ | |
1544 | if (itr_reg == 8 && | |
1545 | !(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED)) | |
1546 | itr_reg = 0; | |
1547 | ||
509ee935 JB |
1548 | /* |
1549 | * set the WDIS bit to not clear the timer bits and cause an | |
1550 | * immediate assertion of the interrupt | |
1551 | */ | |
1552 | itr_reg |= IXGBE_EITR_CNT_WDIS; | |
1553 | } | |
1554 | IXGBE_WRITE_REG(hw, IXGBE_EITR(v_idx), itr_reg); | |
1555 | } | |
1556 | ||
f494e8fa AV |
1557 | static void ixgbe_set_itr_msix(struct ixgbe_q_vector *q_vector) |
1558 | { | |
1559 | struct ixgbe_adapter *adapter = q_vector->adapter; | |
f494e8fa AV |
1560 | u32 new_itr; |
1561 | u8 current_itr, ret_itr; | |
fe49f04a | 1562 | int i, r_idx; |
f494e8fa AV |
1563 | struct ixgbe_ring *rx_ring, *tx_ring; |
1564 | ||
1565 | r_idx = find_first_bit(q_vector->txr_idx, adapter->num_tx_queues); | |
1566 | for (i = 0; i < q_vector->txr_count; i++) { | |
4a0b9ca0 | 1567 | tx_ring = adapter->tx_ring[r_idx]; |
f494e8fa | 1568 | ret_itr = ixgbe_update_itr(adapter, q_vector->eitr, |
b4617240 PW |
1569 | q_vector->tx_itr, |
1570 | tx_ring->total_packets, | |
1571 | tx_ring->total_bytes); | |
f494e8fa AV |
1572 | /* if the result for this queue would decrease interrupt |
1573 | * rate for this vector then use that result */ | |
30efa5a3 | 1574 | q_vector->tx_itr = ((q_vector->tx_itr > ret_itr) ? |
b4617240 | 1575 | q_vector->tx_itr - 1 : ret_itr); |
f494e8fa | 1576 | r_idx = find_next_bit(q_vector->txr_idx, adapter->num_tx_queues, |
b4617240 | 1577 | r_idx + 1); |
f494e8fa AV |
1578 | } |
1579 | ||
1580 | r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues); | |
1581 | for (i = 0; i < q_vector->rxr_count; i++) { | |
4a0b9ca0 | 1582 | rx_ring = adapter->rx_ring[r_idx]; |
f494e8fa | 1583 | ret_itr = ixgbe_update_itr(adapter, q_vector->eitr, |
b4617240 PW |
1584 | q_vector->rx_itr, |
1585 | rx_ring->total_packets, | |
1586 | rx_ring->total_bytes); | |
f494e8fa AV |
1587 | /* if the result for this queue would decrease interrupt |
1588 | * rate for this vector then use that result */ | |
30efa5a3 | 1589 | q_vector->rx_itr = ((q_vector->rx_itr > ret_itr) ? |
b4617240 | 1590 | q_vector->rx_itr - 1 : ret_itr); |
f494e8fa | 1591 | r_idx = find_next_bit(q_vector->rxr_idx, adapter->num_rx_queues, |
b4617240 | 1592 | r_idx + 1); |
f494e8fa AV |
1593 | } |
1594 | ||
30efa5a3 | 1595 | current_itr = max(q_vector->rx_itr, q_vector->tx_itr); |
f494e8fa AV |
1596 | |
1597 | switch (current_itr) { | |
1598 | /* counts and packets in update_itr are dependent on these numbers */ | |
1599 | case lowest_latency: | |
1600 | new_itr = 100000; | |
1601 | break; | |
1602 | case low_latency: | |
1603 | new_itr = 20000; /* aka hwitr = ~200 */ | |
1604 | break; | |
1605 | case bulk_latency: | |
1606 | default: | |
1607 | new_itr = 8000; | |
1608 | break; | |
1609 | } | |
1610 | ||
1611 | if (new_itr != q_vector->eitr) { | |
fe49f04a AD |
1612 | /* do an exponential smoothing */ |
1613 | new_itr = ((q_vector->eitr * 90)/100) + ((new_itr * 10)/100); | |
509ee935 JB |
1614 | |
1615 | /* save the algorithm value here, not the smoothed one */ | |
1616 | q_vector->eitr = new_itr; | |
fe49f04a AD |
1617 | |
1618 | ixgbe_write_eitr(q_vector); | |
f494e8fa | 1619 | } |
f494e8fa AV |
1620 | } |
1621 | ||
119fc60a MC |
1622 | /** |
1623 | * ixgbe_check_overtemp_task - worker thread to check over tempurature | |
1624 | * @work: pointer to work_struct containing our data | |
1625 | **/ | |
1626 | static void ixgbe_check_overtemp_task(struct work_struct *work) | |
1627 | { | |
1628 | struct ixgbe_adapter *adapter = container_of(work, | |
1629 | struct ixgbe_adapter, | |
1630 | check_overtemp_task); | |
1631 | struct ixgbe_hw *hw = &adapter->hw; | |
1632 | u32 eicr = adapter->interrupt_event; | |
1633 | ||
1634 | if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) { | |
1635 | switch (hw->device_id) { | |
1636 | case IXGBE_DEV_ID_82599_T3_LOM: { | |
1637 | u32 autoneg; | |
1638 | bool link_up = false; | |
1639 | ||
1640 | if (hw->mac.ops.check_link) | |
1641 | hw->mac.ops.check_link(hw, &autoneg, &link_up, false); | |
1642 | ||
1643 | if (((eicr & IXGBE_EICR_GPI_SDP0) && (!link_up)) || | |
1644 | (eicr & IXGBE_EICR_LSC)) | |
1645 | /* Check if this is due to overtemp */ | |
1646 | if (hw->phy.ops.check_overtemp(hw) == IXGBE_ERR_OVERTEMP) | |
1647 | break; | |
1648 | } | |
1649 | return; | |
1650 | default: | |
1651 | if (!(eicr & IXGBE_EICR_GPI_SDP0)) | |
1652 | return; | |
1653 | break; | |
1654 | } | |
396e799c ET |
1655 | e_crit(drv, "Network adapter has been stopped because it has " |
1656 | "over heated. Restart the computer. If the problem " | |
849c4542 ET |
1657 | "persists, power off the system and replace the " |
1658 | "adapter\n"); | |
119fc60a MC |
1659 | /* write to clear the interrupt */ |
1660 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP0); | |
1661 | } | |
1662 | } | |
1663 | ||
0befdb3e JB |
1664 | static void ixgbe_check_fan_failure(struct ixgbe_adapter *adapter, u32 eicr) |
1665 | { | |
1666 | struct ixgbe_hw *hw = &adapter->hw; | |
1667 | ||
1668 | if ((adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) && | |
1669 | (eicr & IXGBE_EICR_GPI_SDP1)) { | |
396e799c | 1670 | e_crit(probe, "Fan has stopped, replace the adapter\n"); |
0befdb3e JB |
1671 | /* write to clear the interrupt */ |
1672 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP1); | |
1673 | } | |
1674 | } | |
cf8280ee | 1675 | |
e8e26350 PW |
1676 | static void ixgbe_check_sfp_event(struct ixgbe_adapter *adapter, u32 eicr) |
1677 | { | |
1678 | struct ixgbe_hw *hw = &adapter->hw; | |
1679 | ||
1680 | if (eicr & IXGBE_EICR_GPI_SDP1) { | |
1681 | /* Clear the interrupt */ | |
1682 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP1); | |
1683 | schedule_work(&adapter->multispeed_fiber_task); | |
1684 | } else if (eicr & IXGBE_EICR_GPI_SDP2) { | |
1685 | /* Clear the interrupt */ | |
1686 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP2); | |
1687 | schedule_work(&adapter->sfp_config_module_task); | |
1688 | } else { | |
1689 | /* Interrupt isn't for us... */ | |
1690 | return; | |
1691 | } | |
1692 | } | |
1693 | ||
cf8280ee JB |
1694 | static void ixgbe_check_lsc(struct ixgbe_adapter *adapter) |
1695 | { | |
1696 | struct ixgbe_hw *hw = &adapter->hw; | |
1697 | ||
1698 | adapter->lsc_int++; | |
1699 | adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; | |
1700 | adapter->link_check_timeout = jiffies; | |
1701 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { | |
1702 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_EIMC_LSC); | |
8a0717f3 | 1703 | IXGBE_WRITE_FLUSH(hw); |
cf8280ee JB |
1704 | schedule_work(&adapter->watchdog_task); |
1705 | } | |
1706 | } | |
1707 | ||
9a799d71 AK |
1708 | static irqreturn_t ixgbe_msix_lsc(int irq, void *data) |
1709 | { | |
1710 | struct net_device *netdev = data; | |
1711 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
1712 | struct ixgbe_hw *hw = &adapter->hw; | |
54037505 DS |
1713 | u32 eicr; |
1714 | ||
1715 | /* | |
1716 | * Workaround for Silicon errata. Use clear-by-write instead | |
1717 | * of clear-by-read. Reading with EICS will return the | |
1718 | * interrupt causes without clearing, which later be done | |
1719 | * with the write to EICR. | |
1720 | */ | |
1721 | eicr = IXGBE_READ_REG(hw, IXGBE_EICS); | |
1722 | IXGBE_WRITE_REG(hw, IXGBE_EICR, eicr); | |
9a799d71 | 1723 | |
cf8280ee JB |
1724 | if (eicr & IXGBE_EICR_LSC) |
1725 | ixgbe_check_lsc(adapter); | |
d4f80882 | 1726 | |
1cdd1ec8 GR |
1727 | if (eicr & IXGBE_EICR_MAILBOX) |
1728 | ixgbe_msg_task(adapter); | |
1729 | ||
e8e26350 PW |
1730 | if (hw->mac.type == ixgbe_mac_82598EB) |
1731 | ixgbe_check_fan_failure(adapter, eicr); | |
0befdb3e | 1732 | |
c4cf55e5 | 1733 | if (hw->mac.type == ixgbe_mac_82599EB) { |
e8e26350 | 1734 | ixgbe_check_sfp_event(adapter, eicr); |
119fc60a MC |
1735 | adapter->interrupt_event = eicr; |
1736 | if ((adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) && | |
1737 | ((eicr & IXGBE_EICR_GPI_SDP0) || (eicr & IXGBE_EICR_LSC))) | |
1738 | schedule_work(&adapter->check_overtemp_task); | |
c4cf55e5 PWJ |
1739 | |
1740 | /* Handle Flow Director Full threshold interrupt */ | |
1741 | if (eicr & IXGBE_EICR_FLOW_DIR) { | |
1742 | int i; | |
1743 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_FLOW_DIR); | |
1744 | /* Disable transmits before FDIR Re-initialization */ | |
1745 | netif_tx_stop_all_queues(netdev); | |
1746 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
1747 | struct ixgbe_ring *tx_ring = | |
4a0b9ca0 | 1748 | adapter->tx_ring[i]; |
c4cf55e5 PWJ |
1749 | if (test_and_clear_bit(__IXGBE_FDIR_INIT_DONE, |
1750 | &tx_ring->reinit_state)) | |
1751 | schedule_work(&adapter->fdir_reinit_task); | |
1752 | } | |
1753 | } | |
1754 | } | |
d4f80882 AV |
1755 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
1756 | IXGBE_WRITE_REG(hw, IXGBE_EIMS, IXGBE_EIMS_OTHER); | |
9a799d71 AK |
1757 | |
1758 | return IRQ_HANDLED; | |
1759 | } | |
1760 | ||
fe49f04a AD |
1761 | static inline void ixgbe_irq_enable_queues(struct ixgbe_adapter *adapter, |
1762 | u64 qmask) | |
1763 | { | |
1764 | u32 mask; | |
1765 | ||
1766 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { | |
1767 | mask = (IXGBE_EIMS_RTX_QUEUE & qmask); | |
1768 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, mask); | |
1769 | } else { | |
1770 | mask = (qmask & 0xFFFFFFFF); | |
1771 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS_EX(0), mask); | |
1772 | mask = (qmask >> 32); | |
1773 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS_EX(1), mask); | |
1774 | } | |
1775 | /* skip the flush */ | |
1776 | } | |
1777 | ||
1778 | static inline void ixgbe_irq_disable_queues(struct ixgbe_adapter *adapter, | |
1779 | u64 qmask) | |
1780 | { | |
1781 | u32 mask; | |
1782 | ||
1783 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { | |
1784 | mask = (IXGBE_EIMS_RTX_QUEUE & qmask); | |
1785 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, mask); | |
1786 | } else { | |
1787 | mask = (qmask & 0xFFFFFFFF); | |
1788 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(0), mask); | |
1789 | mask = (qmask >> 32); | |
1790 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(1), mask); | |
1791 | } | |
1792 | /* skip the flush */ | |
1793 | } | |
1794 | ||
9a799d71 AK |
1795 | static irqreturn_t ixgbe_msix_clean_tx(int irq, void *data) |
1796 | { | |
021230d4 AV |
1797 | struct ixgbe_q_vector *q_vector = data; |
1798 | struct ixgbe_adapter *adapter = q_vector->adapter; | |
3a581073 | 1799 | struct ixgbe_ring *tx_ring; |
021230d4 AV |
1800 | int i, r_idx; |
1801 | ||
1802 | if (!q_vector->txr_count) | |
1803 | return IRQ_HANDLED; | |
1804 | ||
1805 | r_idx = find_first_bit(q_vector->txr_idx, adapter->num_tx_queues); | |
1806 | for (i = 0; i < q_vector->txr_count; i++) { | |
4a0b9ca0 | 1807 | tx_ring = adapter->tx_ring[r_idx]; |
3a581073 JB |
1808 | tx_ring->total_bytes = 0; |
1809 | tx_ring->total_packets = 0; | |
021230d4 | 1810 | r_idx = find_next_bit(q_vector->txr_idx, adapter->num_tx_queues, |
b4617240 | 1811 | r_idx + 1); |
021230d4 | 1812 | } |
9a799d71 | 1813 | |
9b471446 | 1814 | /* EIAM disabled interrupts (on this vector) for us */ |
91281fd3 AD |
1815 | napi_schedule(&q_vector->napi); |
1816 | ||
9a799d71 AK |
1817 | return IRQ_HANDLED; |
1818 | } | |
1819 | ||
021230d4 AV |
1820 | /** |
1821 | * ixgbe_msix_clean_rx - single unshared vector rx clean (all queues) | |
1822 | * @irq: unused | |
1823 | * @data: pointer to our q_vector struct for this interrupt vector | |
1824 | **/ | |
9a799d71 AK |
1825 | static irqreturn_t ixgbe_msix_clean_rx(int irq, void *data) |
1826 | { | |
021230d4 AV |
1827 | struct ixgbe_q_vector *q_vector = data; |
1828 | struct ixgbe_adapter *adapter = q_vector->adapter; | |
3a581073 | 1829 | struct ixgbe_ring *rx_ring; |
021230d4 | 1830 | int r_idx; |
30efa5a3 | 1831 | int i; |
021230d4 AV |
1832 | |
1833 | r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues); | |
30efa5a3 | 1834 | for (i = 0; i < q_vector->rxr_count; i++) { |
4a0b9ca0 | 1835 | rx_ring = adapter->rx_ring[r_idx]; |
30efa5a3 JB |
1836 | rx_ring->total_bytes = 0; |
1837 | rx_ring->total_packets = 0; | |
1838 | r_idx = find_next_bit(q_vector->rxr_idx, adapter->num_rx_queues, | |
1839 | r_idx + 1); | |
1840 | } | |
1841 | ||
021230d4 AV |
1842 | if (!q_vector->rxr_count) |
1843 | return IRQ_HANDLED; | |
1844 | ||
021230d4 | 1845 | /* disable interrupts on this vector only */ |
9b471446 | 1846 | /* EIAM disabled interrupts (on this vector) for us */ |
288379f0 | 1847 | napi_schedule(&q_vector->napi); |
021230d4 AV |
1848 | |
1849 | return IRQ_HANDLED; | |
1850 | } | |
1851 | ||
1852 | static irqreturn_t ixgbe_msix_clean_many(int irq, void *data) | |
1853 | { | |
91281fd3 AD |
1854 | struct ixgbe_q_vector *q_vector = data; |
1855 | struct ixgbe_adapter *adapter = q_vector->adapter; | |
1856 | struct ixgbe_ring *ring; | |
1857 | int r_idx; | |
1858 | int i; | |
1859 | ||
1860 | if (!q_vector->txr_count && !q_vector->rxr_count) | |
1861 | return IRQ_HANDLED; | |
1862 | ||
1863 | r_idx = find_first_bit(q_vector->txr_idx, adapter->num_tx_queues); | |
1864 | for (i = 0; i < q_vector->txr_count; i++) { | |
4a0b9ca0 | 1865 | ring = adapter->tx_ring[r_idx]; |
91281fd3 AD |
1866 | ring->total_bytes = 0; |
1867 | ring->total_packets = 0; | |
1868 | r_idx = find_next_bit(q_vector->txr_idx, adapter->num_tx_queues, | |
1869 | r_idx + 1); | |
1870 | } | |
1871 | ||
1872 | r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues); | |
1873 | for (i = 0; i < q_vector->rxr_count; i++) { | |
4a0b9ca0 | 1874 | ring = adapter->rx_ring[r_idx]; |
91281fd3 AD |
1875 | ring->total_bytes = 0; |
1876 | ring->total_packets = 0; | |
1877 | r_idx = find_next_bit(q_vector->rxr_idx, adapter->num_rx_queues, | |
1878 | r_idx + 1); | |
1879 | } | |
1880 | ||
9b471446 | 1881 | /* EIAM disabled interrupts (on this vector) for us */ |
91281fd3 | 1882 | napi_schedule(&q_vector->napi); |
9a799d71 | 1883 | |
9a799d71 AK |
1884 | return IRQ_HANDLED; |
1885 | } | |
1886 | ||
021230d4 AV |
1887 | /** |
1888 | * ixgbe_clean_rxonly - msix (aka one shot) rx clean routine | |
1889 | * @napi: napi struct with our devices info in it | |
1890 | * @budget: amount of work driver is allowed to do this pass, in packets | |
1891 | * | |
f0848276 JB |
1892 | * This function is optimized for cleaning one queue only on a single |
1893 | * q_vector!!! | |
021230d4 | 1894 | **/ |
9a799d71 AK |
1895 | static int ixgbe_clean_rxonly(struct napi_struct *napi, int budget) |
1896 | { | |
021230d4 | 1897 | struct ixgbe_q_vector *q_vector = |
b4617240 | 1898 | container_of(napi, struct ixgbe_q_vector, napi); |
021230d4 | 1899 | struct ixgbe_adapter *adapter = q_vector->adapter; |
f0848276 | 1900 | struct ixgbe_ring *rx_ring = NULL; |
9a799d71 | 1901 | int work_done = 0; |
021230d4 | 1902 | long r_idx; |
9a799d71 | 1903 | |
021230d4 | 1904 | r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues); |
4a0b9ca0 | 1905 | rx_ring = adapter->rx_ring[r_idx]; |
5dd2d332 | 1906 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd | 1907 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) |
3a581073 | 1908 | ixgbe_update_rx_dca(adapter, rx_ring); |
bd0362dd | 1909 | #endif |
9a799d71 | 1910 | |
78b6f4ce | 1911 | ixgbe_clean_rx_irq(q_vector, rx_ring, &work_done, budget); |
9a799d71 | 1912 | |
021230d4 AV |
1913 | /* If all Rx work done, exit the polling mode */ |
1914 | if (work_done < budget) { | |
288379f0 | 1915 | napi_complete(napi); |
f7554a2b | 1916 | if (adapter->rx_itr_setting & 1) |
f494e8fa | 1917 | ixgbe_set_itr_msix(q_vector); |
9a799d71 | 1918 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
fe49f04a AD |
1919 | ixgbe_irq_enable_queues(adapter, |
1920 | ((u64)1 << q_vector->v_idx)); | |
9a799d71 AK |
1921 | } |
1922 | ||
1923 | return work_done; | |
1924 | } | |
1925 | ||
f0848276 | 1926 | /** |
91281fd3 | 1927 | * ixgbe_clean_rxtx_many - msix (aka one shot) rx clean routine |
f0848276 JB |
1928 | * @napi: napi struct with our devices info in it |
1929 | * @budget: amount of work driver is allowed to do this pass, in packets | |
1930 | * | |
1931 | * This function will clean more than one rx queue associated with a | |
1932 | * q_vector. | |
1933 | **/ | |
91281fd3 | 1934 | static int ixgbe_clean_rxtx_many(struct napi_struct *napi, int budget) |
f0848276 JB |
1935 | { |
1936 | struct ixgbe_q_vector *q_vector = | |
1937 | container_of(napi, struct ixgbe_q_vector, napi); | |
1938 | struct ixgbe_adapter *adapter = q_vector->adapter; | |
91281fd3 | 1939 | struct ixgbe_ring *ring = NULL; |
f0848276 JB |
1940 | int work_done = 0, i; |
1941 | long r_idx; | |
91281fd3 AD |
1942 | bool tx_clean_complete = true; |
1943 | ||
1944 | r_idx = find_first_bit(q_vector->txr_idx, adapter->num_tx_queues); | |
1945 | for (i = 0; i < q_vector->txr_count; i++) { | |
4a0b9ca0 | 1946 | ring = adapter->tx_ring[r_idx]; |
91281fd3 AD |
1947 | #ifdef CONFIG_IXGBE_DCA |
1948 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) | |
1949 | ixgbe_update_tx_dca(adapter, ring); | |
1950 | #endif | |
1951 | tx_clean_complete &= ixgbe_clean_tx_irq(q_vector, ring); | |
1952 | r_idx = find_next_bit(q_vector->txr_idx, adapter->num_tx_queues, | |
1953 | r_idx + 1); | |
1954 | } | |
f0848276 JB |
1955 | |
1956 | /* attempt to distribute budget to each queue fairly, but don't allow | |
1957 | * the budget to go below 1 because we'll exit polling */ | |
1958 | budget /= (q_vector->rxr_count ?: 1); | |
1959 | budget = max(budget, 1); | |
1960 | r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues); | |
1961 | for (i = 0; i < q_vector->rxr_count; i++) { | |
4a0b9ca0 | 1962 | ring = adapter->rx_ring[r_idx]; |
5dd2d332 | 1963 | #ifdef CONFIG_IXGBE_DCA |
f0848276 | 1964 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) |
91281fd3 | 1965 | ixgbe_update_rx_dca(adapter, ring); |
f0848276 | 1966 | #endif |
91281fd3 | 1967 | ixgbe_clean_rx_irq(q_vector, ring, &work_done, budget); |
f0848276 JB |
1968 | r_idx = find_next_bit(q_vector->rxr_idx, adapter->num_rx_queues, |
1969 | r_idx + 1); | |
1970 | } | |
1971 | ||
1972 | r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues); | |
4a0b9ca0 | 1973 | ring = adapter->rx_ring[r_idx]; |
f0848276 | 1974 | /* If all Rx work done, exit the polling mode */ |
7f821875 | 1975 | if (work_done < budget) { |
288379f0 | 1976 | napi_complete(napi); |
f7554a2b | 1977 | if (adapter->rx_itr_setting & 1) |
f0848276 JB |
1978 | ixgbe_set_itr_msix(q_vector); |
1979 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) | |
fe49f04a AD |
1980 | ixgbe_irq_enable_queues(adapter, |
1981 | ((u64)1 << q_vector->v_idx)); | |
f0848276 JB |
1982 | return 0; |
1983 | } | |
1984 | ||
1985 | return work_done; | |
1986 | } | |
91281fd3 AD |
1987 | |
1988 | /** | |
1989 | * ixgbe_clean_txonly - msix (aka one shot) tx clean routine | |
1990 | * @napi: napi struct with our devices info in it | |
1991 | * @budget: amount of work driver is allowed to do this pass, in packets | |
1992 | * | |
1993 | * This function is optimized for cleaning one queue only on a single | |
1994 | * q_vector!!! | |
1995 | **/ | |
1996 | static int ixgbe_clean_txonly(struct napi_struct *napi, int budget) | |
1997 | { | |
1998 | struct ixgbe_q_vector *q_vector = | |
1999 | container_of(napi, struct ixgbe_q_vector, napi); | |
2000 | struct ixgbe_adapter *adapter = q_vector->adapter; | |
2001 | struct ixgbe_ring *tx_ring = NULL; | |
2002 | int work_done = 0; | |
2003 | long r_idx; | |
2004 | ||
2005 | r_idx = find_first_bit(q_vector->txr_idx, adapter->num_tx_queues); | |
4a0b9ca0 | 2006 | tx_ring = adapter->tx_ring[r_idx]; |
91281fd3 AD |
2007 | #ifdef CONFIG_IXGBE_DCA |
2008 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) | |
2009 | ixgbe_update_tx_dca(adapter, tx_ring); | |
2010 | #endif | |
2011 | ||
2012 | if (!ixgbe_clean_tx_irq(q_vector, tx_ring)) | |
2013 | work_done = budget; | |
2014 | ||
f7554a2b | 2015 | /* If all Tx work done, exit the polling mode */ |
91281fd3 AD |
2016 | if (work_done < budget) { |
2017 | napi_complete(napi); | |
f7554a2b | 2018 | if (adapter->tx_itr_setting & 1) |
91281fd3 AD |
2019 | ixgbe_set_itr_msix(q_vector); |
2020 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) | |
2021 | ixgbe_irq_enable_queues(adapter, ((u64)1 << q_vector->v_idx)); | |
2022 | } | |
2023 | ||
2024 | return work_done; | |
2025 | } | |
2026 | ||
021230d4 | 2027 | static inline void map_vector_to_rxq(struct ixgbe_adapter *a, int v_idx, |
b4617240 | 2028 | int r_idx) |
021230d4 | 2029 | { |
7a921c93 AD |
2030 | struct ixgbe_q_vector *q_vector = a->q_vector[v_idx]; |
2031 | ||
2032 | set_bit(r_idx, q_vector->rxr_idx); | |
2033 | q_vector->rxr_count++; | |
021230d4 AV |
2034 | } |
2035 | ||
2036 | static inline void map_vector_to_txq(struct ixgbe_adapter *a, int v_idx, | |
7a921c93 | 2037 | int t_idx) |
021230d4 | 2038 | { |
7a921c93 AD |
2039 | struct ixgbe_q_vector *q_vector = a->q_vector[v_idx]; |
2040 | ||
2041 | set_bit(t_idx, q_vector->txr_idx); | |
2042 | q_vector->txr_count++; | |
021230d4 AV |
2043 | } |
2044 | ||
9a799d71 | 2045 | /** |
021230d4 AV |
2046 | * ixgbe_map_rings_to_vectors - Maps descriptor rings to vectors |
2047 | * @adapter: board private structure to initialize | |
2048 | * @vectors: allotted vector count for descriptor rings | |
9a799d71 | 2049 | * |
021230d4 AV |
2050 | * This function maps descriptor rings to the queue-specific vectors |
2051 | * we were allotted through the MSI-X enabling code. Ideally, we'd have | |
2052 | * one vector per ring/queue, but on a constrained vector budget, we | |
2053 | * group the rings as "efficiently" as possible. You would add new | |
2054 | * mapping configurations in here. | |
9a799d71 | 2055 | **/ |
021230d4 | 2056 | static int ixgbe_map_rings_to_vectors(struct ixgbe_adapter *adapter, |
b4617240 | 2057 | int vectors) |
021230d4 AV |
2058 | { |
2059 | int v_start = 0; | |
2060 | int rxr_idx = 0, txr_idx = 0; | |
2061 | int rxr_remaining = adapter->num_rx_queues; | |
2062 | int txr_remaining = adapter->num_tx_queues; | |
2063 | int i, j; | |
2064 | int rqpv, tqpv; | |
2065 | int err = 0; | |
2066 | ||
2067 | /* No mapping required if MSI-X is disabled. */ | |
2068 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) | |
2069 | goto out; | |
9a799d71 | 2070 | |
021230d4 AV |
2071 | /* |
2072 | * The ideal configuration... | |
2073 | * We have enough vectors to map one per queue. | |
2074 | */ | |
2075 | if (vectors == adapter->num_rx_queues + adapter->num_tx_queues) { | |
2076 | for (; rxr_idx < rxr_remaining; v_start++, rxr_idx++) | |
2077 | map_vector_to_rxq(adapter, v_start, rxr_idx); | |
9a799d71 | 2078 | |
021230d4 AV |
2079 | for (; txr_idx < txr_remaining; v_start++, txr_idx++) |
2080 | map_vector_to_txq(adapter, v_start, txr_idx); | |
9a799d71 | 2081 | |
9a799d71 | 2082 | goto out; |
021230d4 | 2083 | } |
9a799d71 | 2084 | |
021230d4 AV |
2085 | /* |
2086 | * If we don't have enough vectors for a 1-to-1 | |
2087 | * mapping, we'll have to group them so there are | |
2088 | * multiple queues per vector. | |
2089 | */ | |
2090 | /* Re-adjusting *qpv takes care of the remainder. */ | |
2091 | for (i = v_start; i < vectors; i++) { | |
2092 | rqpv = DIV_ROUND_UP(rxr_remaining, vectors - i); | |
2093 | for (j = 0; j < rqpv; j++) { | |
2094 | map_vector_to_rxq(adapter, i, rxr_idx); | |
2095 | rxr_idx++; | |
2096 | rxr_remaining--; | |
2097 | } | |
2098 | } | |
2099 | for (i = v_start; i < vectors; i++) { | |
2100 | tqpv = DIV_ROUND_UP(txr_remaining, vectors - i); | |
2101 | for (j = 0; j < tqpv; j++) { | |
2102 | map_vector_to_txq(adapter, i, txr_idx); | |
2103 | txr_idx++; | |
2104 | txr_remaining--; | |
9a799d71 | 2105 | } |
9a799d71 AK |
2106 | } |
2107 | ||
021230d4 AV |
2108 | out: |
2109 | return err; | |
2110 | } | |
2111 | ||
2112 | /** | |
2113 | * ixgbe_request_msix_irqs - Initialize MSI-X interrupts | |
2114 | * @adapter: board private structure | |
2115 | * | |
2116 | * ixgbe_request_msix_irqs allocates MSI-X vectors and requests | |
2117 | * interrupts from the kernel. | |
2118 | **/ | |
2119 | static int ixgbe_request_msix_irqs(struct ixgbe_adapter *adapter) | |
2120 | { | |
2121 | struct net_device *netdev = adapter->netdev; | |
2122 | irqreturn_t (*handler)(int, void *); | |
2123 | int i, vector, q_vectors, err; | |
cb13fc20 | 2124 | int ri=0, ti=0; |
021230d4 AV |
2125 | |
2126 | /* Decrement for Other and TCP Timer vectors */ | |
2127 | q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; | |
2128 | ||
2129 | /* Map the Tx/Rx rings to the vectors we were allotted. */ | |
2130 | err = ixgbe_map_rings_to_vectors(adapter, q_vectors); | |
2131 | if (err) | |
2132 | goto out; | |
2133 | ||
2134 | #define SET_HANDLER(_v) ((!(_v)->rxr_count) ? &ixgbe_msix_clean_tx : \ | |
b4617240 PW |
2135 | (!(_v)->txr_count) ? &ixgbe_msix_clean_rx : \ |
2136 | &ixgbe_msix_clean_many) | |
021230d4 | 2137 | for (vector = 0; vector < q_vectors; vector++) { |
7a921c93 | 2138 | handler = SET_HANDLER(adapter->q_vector[vector]); |
cb13fc20 RO |
2139 | |
2140 | if(handler == &ixgbe_msix_clean_rx) { | |
2141 | sprintf(adapter->name[vector], "%s-%s-%d", | |
2142 | netdev->name, "rx", ri++); | |
2143 | } | |
2144 | else if(handler == &ixgbe_msix_clean_tx) { | |
2145 | sprintf(adapter->name[vector], "%s-%s-%d", | |
2146 | netdev->name, "tx", ti++); | |
2147 | } | |
2148 | else | |
2149 | sprintf(adapter->name[vector], "%s-%s-%d", | |
2150 | netdev->name, "TxRx", vector); | |
2151 | ||
021230d4 | 2152 | err = request_irq(adapter->msix_entries[vector].vector, |
b4617240 | 2153 | handler, 0, adapter->name[vector], |
7a921c93 | 2154 | adapter->q_vector[vector]); |
9a799d71 | 2155 | if (err) { |
396e799c | 2156 | e_err(probe, "request_irq failed for MSIX interrupt " |
849c4542 | 2157 | "Error: %d\n", err); |
021230d4 | 2158 | goto free_queue_irqs; |
9a799d71 | 2159 | } |
9a799d71 AK |
2160 | } |
2161 | ||
021230d4 AV |
2162 | sprintf(adapter->name[vector], "%s:lsc", netdev->name); |
2163 | err = request_irq(adapter->msix_entries[vector].vector, | |
a0607fd3 | 2164 | ixgbe_msix_lsc, 0, adapter->name[vector], netdev); |
9a799d71 | 2165 | if (err) { |
396e799c | 2166 | e_err(probe, "request_irq for msix_lsc failed: %d\n", err); |
021230d4 | 2167 | goto free_queue_irqs; |
9a799d71 AK |
2168 | } |
2169 | ||
9a799d71 AK |
2170 | return 0; |
2171 | ||
021230d4 AV |
2172 | free_queue_irqs: |
2173 | for (i = vector - 1; i >= 0; i--) | |
2174 | free_irq(adapter->msix_entries[--vector].vector, | |
7a921c93 | 2175 | adapter->q_vector[i]); |
021230d4 AV |
2176 | adapter->flags &= ~IXGBE_FLAG_MSIX_ENABLED; |
2177 | pci_disable_msix(adapter->pdev); | |
9a799d71 AK |
2178 | kfree(adapter->msix_entries); |
2179 | adapter->msix_entries = NULL; | |
021230d4 | 2180 | out: |
9a799d71 AK |
2181 | return err; |
2182 | } | |
2183 | ||
f494e8fa AV |
2184 | static void ixgbe_set_itr(struct ixgbe_adapter *adapter) |
2185 | { | |
7a921c93 | 2186 | struct ixgbe_q_vector *q_vector = adapter->q_vector[0]; |
f494e8fa AV |
2187 | u8 current_itr; |
2188 | u32 new_itr = q_vector->eitr; | |
4a0b9ca0 PW |
2189 | struct ixgbe_ring *rx_ring = adapter->rx_ring[0]; |
2190 | struct ixgbe_ring *tx_ring = adapter->tx_ring[0]; | |
f494e8fa | 2191 | |
30efa5a3 | 2192 | q_vector->tx_itr = ixgbe_update_itr(adapter, new_itr, |
b4617240 PW |
2193 | q_vector->tx_itr, |
2194 | tx_ring->total_packets, | |
2195 | tx_ring->total_bytes); | |
30efa5a3 | 2196 | q_vector->rx_itr = ixgbe_update_itr(adapter, new_itr, |
b4617240 PW |
2197 | q_vector->rx_itr, |
2198 | rx_ring->total_packets, | |
2199 | rx_ring->total_bytes); | |
f494e8fa | 2200 | |
30efa5a3 | 2201 | current_itr = max(q_vector->rx_itr, q_vector->tx_itr); |
f494e8fa AV |
2202 | |
2203 | switch (current_itr) { | |
2204 | /* counts and packets in update_itr are dependent on these numbers */ | |
2205 | case lowest_latency: | |
2206 | new_itr = 100000; | |
2207 | break; | |
2208 | case low_latency: | |
2209 | new_itr = 20000; /* aka hwitr = ~200 */ | |
2210 | break; | |
2211 | case bulk_latency: | |
2212 | new_itr = 8000; | |
2213 | break; | |
2214 | default: | |
2215 | break; | |
2216 | } | |
2217 | ||
2218 | if (new_itr != q_vector->eitr) { | |
fe49f04a AD |
2219 | /* do an exponential smoothing */ |
2220 | new_itr = ((q_vector->eitr * 90)/100) + ((new_itr * 10)/100); | |
509ee935 JB |
2221 | |
2222 | /* save the algorithm value here, not the smoothed one */ | |
2223 | q_vector->eitr = new_itr; | |
fe49f04a AD |
2224 | |
2225 | ixgbe_write_eitr(q_vector); | |
f494e8fa | 2226 | } |
f494e8fa AV |
2227 | } |
2228 | ||
79aefa45 AD |
2229 | /** |
2230 | * ixgbe_irq_enable - Enable default interrupt generation settings | |
2231 | * @adapter: board private structure | |
2232 | **/ | |
2233 | static inline void ixgbe_irq_enable(struct ixgbe_adapter *adapter) | |
2234 | { | |
2235 | u32 mask; | |
835462fc NS |
2236 | |
2237 | mask = (IXGBE_EIMS_ENABLE_MASK & ~IXGBE_EIMS_RTX_QUEUE); | |
119fc60a MC |
2238 | if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) |
2239 | mask |= IXGBE_EIMS_GPI_SDP0; | |
6ab33d51 DM |
2240 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) |
2241 | mask |= IXGBE_EIMS_GPI_SDP1; | |
e8e26350 | 2242 | if (adapter->hw.mac.type == ixgbe_mac_82599EB) { |
2a41ff81 | 2243 | mask |= IXGBE_EIMS_ECC; |
e8e26350 PW |
2244 | mask |= IXGBE_EIMS_GPI_SDP1; |
2245 | mask |= IXGBE_EIMS_GPI_SDP2; | |
1cdd1ec8 GR |
2246 | if (adapter->num_vfs) |
2247 | mask |= IXGBE_EIMS_MAILBOX; | |
e8e26350 | 2248 | } |
c4cf55e5 PWJ |
2249 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE || |
2250 | adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) | |
2251 | mask |= IXGBE_EIMS_FLOW_DIR; | |
e8e26350 | 2252 | |
79aefa45 | 2253 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, mask); |
835462fc | 2254 | ixgbe_irq_enable_queues(adapter, ~0); |
79aefa45 | 2255 | IXGBE_WRITE_FLUSH(&adapter->hw); |
1cdd1ec8 GR |
2256 | |
2257 | if (adapter->num_vfs > 32) { | |
2258 | u32 eitrsel = (1 << (adapter->num_vfs - 32)) - 1; | |
2259 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, eitrsel); | |
2260 | } | |
79aefa45 | 2261 | } |
021230d4 | 2262 | |
9a799d71 | 2263 | /** |
021230d4 | 2264 | * ixgbe_intr - legacy mode Interrupt Handler |
9a799d71 AK |
2265 | * @irq: interrupt number |
2266 | * @data: pointer to a network interface device structure | |
9a799d71 AK |
2267 | **/ |
2268 | static irqreturn_t ixgbe_intr(int irq, void *data) | |
2269 | { | |
2270 | struct net_device *netdev = data; | |
2271 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
2272 | struct ixgbe_hw *hw = &adapter->hw; | |
7a921c93 | 2273 | struct ixgbe_q_vector *q_vector = adapter->q_vector[0]; |
9a799d71 AK |
2274 | u32 eicr; |
2275 | ||
54037505 DS |
2276 | /* |
2277 | * Workaround for silicon errata. Mask the interrupts | |
2278 | * before the read of EICR. | |
2279 | */ | |
2280 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_IRQ_CLEAR_MASK); | |
2281 | ||
021230d4 AV |
2282 | /* for NAPI, using EIAM to auto-mask tx/rx interrupt bits on read |
2283 | * therefore no explict interrupt disable is necessary */ | |
2284 | eicr = IXGBE_READ_REG(hw, IXGBE_EICR); | |
f47cf66e JB |
2285 | if (!eicr) { |
2286 | /* shared interrupt alert! | |
2287 | * make sure interrupts are enabled because the read will | |
2288 | * have disabled interrupts due to EIAM */ | |
2289 | ixgbe_irq_enable(adapter); | |
9a799d71 | 2290 | return IRQ_NONE; /* Not our interrupt */ |
f47cf66e | 2291 | } |
9a799d71 | 2292 | |
cf8280ee JB |
2293 | if (eicr & IXGBE_EICR_LSC) |
2294 | ixgbe_check_lsc(adapter); | |
021230d4 | 2295 | |
e8e26350 PW |
2296 | if (hw->mac.type == ixgbe_mac_82599EB) |
2297 | ixgbe_check_sfp_event(adapter, eicr); | |
2298 | ||
0befdb3e | 2299 | ixgbe_check_fan_failure(adapter, eicr); |
119fc60a MC |
2300 | if ((adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) && |
2301 | ((eicr & IXGBE_EICR_GPI_SDP0) || (eicr & IXGBE_EICR_LSC))) | |
2302 | schedule_work(&adapter->check_overtemp_task); | |
0befdb3e | 2303 | |
7a921c93 | 2304 | if (napi_schedule_prep(&(q_vector->napi))) { |
4a0b9ca0 PW |
2305 | adapter->tx_ring[0]->total_packets = 0; |
2306 | adapter->tx_ring[0]->total_bytes = 0; | |
2307 | adapter->rx_ring[0]->total_packets = 0; | |
2308 | adapter->rx_ring[0]->total_bytes = 0; | |
021230d4 | 2309 | /* would disable interrupts here but EIAM disabled it */ |
7a921c93 | 2310 | __napi_schedule(&(q_vector->napi)); |
9a799d71 AK |
2311 | } |
2312 | ||
2313 | return IRQ_HANDLED; | |
2314 | } | |
2315 | ||
021230d4 AV |
2316 | static inline void ixgbe_reset_q_vectors(struct ixgbe_adapter *adapter) |
2317 | { | |
2318 | int i, q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; | |
2319 | ||
2320 | for (i = 0; i < q_vectors; i++) { | |
7a921c93 | 2321 | struct ixgbe_q_vector *q_vector = adapter->q_vector[i]; |
021230d4 AV |
2322 | bitmap_zero(q_vector->rxr_idx, MAX_RX_QUEUES); |
2323 | bitmap_zero(q_vector->txr_idx, MAX_TX_QUEUES); | |
2324 | q_vector->rxr_count = 0; | |
2325 | q_vector->txr_count = 0; | |
2326 | } | |
2327 | } | |
2328 | ||
9a799d71 AK |
2329 | /** |
2330 | * ixgbe_request_irq - initialize interrupts | |
2331 | * @adapter: board private structure | |
2332 | * | |
2333 | * Attempts to configure interrupts using the best available | |
2334 | * capabilities of the hardware and kernel. | |
2335 | **/ | |
021230d4 | 2336 | static int ixgbe_request_irq(struct ixgbe_adapter *adapter) |
9a799d71 AK |
2337 | { |
2338 | struct net_device *netdev = adapter->netdev; | |
021230d4 | 2339 | int err; |
9a799d71 | 2340 | |
021230d4 AV |
2341 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
2342 | err = ixgbe_request_msix_irqs(adapter); | |
2343 | } else if (adapter->flags & IXGBE_FLAG_MSI_ENABLED) { | |
a0607fd3 | 2344 | err = request_irq(adapter->pdev->irq, ixgbe_intr, 0, |
b4617240 | 2345 | netdev->name, netdev); |
021230d4 | 2346 | } else { |
a0607fd3 | 2347 | err = request_irq(adapter->pdev->irq, ixgbe_intr, IRQF_SHARED, |
b4617240 | 2348 | netdev->name, netdev); |
9a799d71 AK |
2349 | } |
2350 | ||
9a799d71 | 2351 | if (err) |
396e799c | 2352 | e_err(probe, "request_irq failed, Error %d\n", err); |
9a799d71 | 2353 | |
9a799d71 AK |
2354 | return err; |
2355 | } | |
2356 | ||
2357 | static void ixgbe_free_irq(struct ixgbe_adapter *adapter) | |
2358 | { | |
2359 | struct net_device *netdev = adapter->netdev; | |
2360 | ||
2361 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { | |
021230d4 | 2362 | int i, q_vectors; |
9a799d71 | 2363 | |
021230d4 AV |
2364 | q_vectors = adapter->num_msix_vectors; |
2365 | ||
2366 | i = q_vectors - 1; | |
9a799d71 | 2367 | free_irq(adapter->msix_entries[i].vector, netdev); |
9a799d71 | 2368 | |
021230d4 AV |
2369 | i--; |
2370 | for (; i >= 0; i--) { | |
2371 | free_irq(adapter->msix_entries[i].vector, | |
7a921c93 | 2372 | adapter->q_vector[i]); |
021230d4 AV |
2373 | } |
2374 | ||
2375 | ixgbe_reset_q_vectors(adapter); | |
2376 | } else { | |
2377 | free_irq(adapter->pdev->irq, netdev); | |
9a799d71 AK |
2378 | } |
2379 | } | |
2380 | ||
22d5a71b JB |
2381 | /** |
2382 | * ixgbe_irq_disable - Mask off interrupt generation on the NIC | |
2383 | * @adapter: board private structure | |
2384 | **/ | |
2385 | static inline void ixgbe_irq_disable(struct ixgbe_adapter *adapter) | |
2386 | { | |
835462fc NS |
2387 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
2388 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, ~0); | |
2389 | } else { | |
2390 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, 0xFFFF0000); | |
2391 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(0), ~0); | |
22d5a71b | 2392 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(1), ~0); |
1cdd1ec8 GR |
2393 | if (adapter->num_vfs > 32) |
2394 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, 0); | |
22d5a71b JB |
2395 | } |
2396 | IXGBE_WRITE_FLUSH(&adapter->hw); | |
2397 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { | |
2398 | int i; | |
2399 | for (i = 0; i < adapter->num_msix_vectors; i++) | |
2400 | synchronize_irq(adapter->msix_entries[i].vector); | |
2401 | } else { | |
2402 | synchronize_irq(adapter->pdev->irq); | |
2403 | } | |
2404 | } | |
2405 | ||
9a799d71 AK |
2406 | /** |
2407 | * ixgbe_configure_msi_and_legacy - Initialize PIN (INTA...) and MSI interrupts | |
2408 | * | |
2409 | **/ | |
2410 | static void ixgbe_configure_msi_and_legacy(struct ixgbe_adapter *adapter) | |
2411 | { | |
9a799d71 AK |
2412 | struct ixgbe_hw *hw = &adapter->hw; |
2413 | ||
021230d4 | 2414 | IXGBE_WRITE_REG(hw, IXGBE_EITR(0), |
f7554a2b | 2415 | EITR_INTS_PER_SEC_TO_REG(adapter->rx_eitr_param)); |
9a799d71 | 2416 | |
e8e26350 PW |
2417 | ixgbe_set_ivar(adapter, 0, 0, 0); |
2418 | ixgbe_set_ivar(adapter, 1, 0, 0); | |
021230d4 AV |
2419 | |
2420 | map_vector_to_rxq(adapter, 0, 0); | |
2421 | map_vector_to_txq(adapter, 0, 0); | |
2422 | ||
396e799c | 2423 | e_info(hw, "Legacy interrupt IVAR setup done\n"); |
9a799d71 AK |
2424 | } |
2425 | ||
2426 | /** | |
3a581073 | 2427 | * ixgbe_configure_tx - Configure 8259x Transmit Unit after Reset |
9a799d71 AK |
2428 | * @adapter: board private structure |
2429 | * | |
2430 | * Configure the Tx unit of the MAC after a reset. | |
2431 | **/ | |
2432 | static void ixgbe_configure_tx(struct ixgbe_adapter *adapter) | |
2433 | { | |
12207e49 | 2434 | u64 tdba; |
9a799d71 | 2435 | struct ixgbe_hw *hw = &adapter->hw; |
021230d4 | 2436 | u32 i, j, tdlen, txctrl; |
9a799d71 AK |
2437 | |
2438 | /* Setup the HW Tx Head and Tail descriptor pointers */ | |
2439 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
4a0b9ca0 | 2440 | struct ixgbe_ring *ring = adapter->tx_ring[i]; |
e01c31a5 JB |
2441 | j = ring->reg_idx; |
2442 | tdba = ring->dma; | |
2443 | tdlen = ring->count * sizeof(union ixgbe_adv_tx_desc); | |
021230d4 | 2444 | IXGBE_WRITE_REG(hw, IXGBE_TDBAL(j), |
284901a9 | 2445 | (tdba & DMA_BIT_MASK(32))); |
021230d4 AV |
2446 | IXGBE_WRITE_REG(hw, IXGBE_TDBAH(j), (tdba >> 32)); |
2447 | IXGBE_WRITE_REG(hw, IXGBE_TDLEN(j), tdlen); | |
2448 | IXGBE_WRITE_REG(hw, IXGBE_TDH(j), 0); | |
2449 | IXGBE_WRITE_REG(hw, IXGBE_TDT(j), 0); | |
4a0b9ca0 PW |
2450 | adapter->tx_ring[i]->head = IXGBE_TDH(j); |
2451 | adapter->tx_ring[i]->tail = IXGBE_TDT(j); | |
84f62d4b PWJ |
2452 | /* |
2453 | * Disable Tx Head Writeback RO bit, since this hoses | |
021230d4 AV |
2454 | * bookkeeping if things aren't delivered in order. |
2455 | */ | |
84f62d4b PWJ |
2456 | switch (hw->mac.type) { |
2457 | case ixgbe_mac_82598EB: | |
2458 | txctrl = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL(j)); | |
2459 | break; | |
2460 | case ixgbe_mac_82599EB: | |
2461 | default: | |
2462 | txctrl = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL_82599(j)); | |
2463 | break; | |
2464 | } | |
021230d4 | 2465 | txctrl &= ~IXGBE_DCA_TXCTRL_TX_WB_RO_EN; |
84f62d4b PWJ |
2466 | switch (hw->mac.type) { |
2467 | case ixgbe_mac_82598EB: | |
2468 | IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL(j), txctrl); | |
2469 | break; | |
2470 | case ixgbe_mac_82599EB: | |
2471 | default: | |
2472 | IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL_82599(j), txctrl); | |
2473 | break; | |
2474 | } | |
9a799d71 | 2475 | } |
ee5f784a | 2476 | |
e8e26350 | 2477 | if (hw->mac.type == ixgbe_mac_82599EB) { |
ee5f784a | 2478 | u32 rttdcs; |
1cdd1ec8 | 2479 | u32 mask; |
ee5f784a DS |
2480 | |
2481 | /* disable the arbiter while setting MTQC */ | |
2482 | rttdcs = IXGBE_READ_REG(hw, IXGBE_RTTDCS); | |
2483 | rttdcs |= IXGBE_RTTDCS_ARBDIS; | |
2484 | IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, rttdcs); | |
2485 | ||
1cdd1ec8 GR |
2486 | /* set transmit pool layout */ |
2487 | mask = (IXGBE_FLAG_SRIOV_ENABLED | IXGBE_FLAG_DCB_ENABLED); | |
2488 | switch (adapter->flags & mask) { | |
2489 | ||
2490 | case (IXGBE_FLAG_SRIOV_ENABLED): | |
2491 | IXGBE_WRITE_REG(hw, IXGBE_MTQC, | |
2492 | (IXGBE_MTQC_VT_ENA | IXGBE_MTQC_64VF)); | |
2493 | break; | |
2494 | ||
2495 | case (IXGBE_FLAG_DCB_ENABLED): | |
2496 | /* We enable 8 traffic classes, DCB only */ | |
2497 | IXGBE_WRITE_REG(hw, IXGBE_MTQC, | |
2498 | (IXGBE_MTQC_RT_ENA | IXGBE_MTQC_8TC_8TQ)); | |
2499 | break; | |
2500 | ||
2501 | default: | |
ee5f784a | 2502 | IXGBE_WRITE_REG(hw, IXGBE_MTQC, IXGBE_MTQC_64Q_1PB); |
1cdd1ec8 GR |
2503 | break; |
2504 | } | |
ee5f784a DS |
2505 | |
2506 | /* re-eable the arbiter */ | |
2507 | rttdcs &= ~IXGBE_RTTDCS_ARBDIS; | |
2508 | IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, rttdcs); | |
e8e26350 | 2509 | } |
9a799d71 AK |
2510 | } |
2511 | ||
e8e26350 | 2512 | #define IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT 2 |
cc41ac7c | 2513 | |
a6616b42 YZ |
2514 | static void ixgbe_configure_srrctl(struct ixgbe_adapter *adapter, |
2515 | struct ixgbe_ring *rx_ring) | |
cc41ac7c | 2516 | { |
cc41ac7c | 2517 | u32 srrctl; |
a6616b42 | 2518 | int index; |
0cefafad | 2519 | struct ixgbe_ring_feature *feature = adapter->ring_feature; |
3be1adfb | 2520 | |
a6616b42 YZ |
2521 | index = rx_ring->reg_idx; |
2522 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { | |
2523 | unsigned long mask; | |
0cefafad | 2524 | mask = (unsigned long) feature[RING_F_RSS].mask; |
3be1adfb | 2525 | index = index & mask; |
cc41ac7c | 2526 | } |
cc41ac7c JB |
2527 | srrctl = IXGBE_READ_REG(&adapter->hw, IXGBE_SRRCTL(index)); |
2528 | ||
2529 | srrctl &= ~IXGBE_SRRCTL_BSIZEHDR_MASK; | |
2530 | srrctl &= ~IXGBE_SRRCTL_BSIZEPKT_MASK; | |
2531 | ||
afafd5b0 AD |
2532 | srrctl |= (IXGBE_RX_HDR_SIZE << IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT) & |
2533 | IXGBE_SRRCTL_BSIZEHDR_MASK; | |
2534 | ||
6e455b89 | 2535 | if (rx_ring->flags & IXGBE_RING_RX_PS_ENABLED) { |
afafd5b0 AD |
2536 | #if (PAGE_SIZE / 2) > IXGBE_MAX_RXBUFFER |
2537 | srrctl |= IXGBE_MAX_RXBUFFER >> IXGBE_SRRCTL_BSIZEPKT_SHIFT; | |
2538 | #else | |
2539 | srrctl |= (PAGE_SIZE / 2) >> IXGBE_SRRCTL_BSIZEPKT_SHIFT; | |
2540 | #endif | |
cc41ac7c | 2541 | srrctl |= IXGBE_SRRCTL_DESCTYPE_HDR_SPLIT_ALWAYS; |
cc41ac7c | 2542 | } else { |
afafd5b0 AD |
2543 | srrctl |= ALIGN(rx_ring->rx_buf_len, 1024) >> |
2544 | IXGBE_SRRCTL_BSIZEPKT_SHIFT; | |
cc41ac7c | 2545 | srrctl |= IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF; |
cc41ac7c | 2546 | } |
e8e26350 | 2547 | |
cc41ac7c JB |
2548 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_SRRCTL(index), srrctl); |
2549 | } | |
9a799d71 | 2550 | |
0cefafad JB |
2551 | static u32 ixgbe_setup_mrqc(struct ixgbe_adapter *adapter) |
2552 | { | |
2553 | u32 mrqc = 0; | |
2554 | int mask; | |
2555 | ||
2556 | if (!(adapter->hw.mac.type == ixgbe_mac_82599EB)) | |
2557 | return mrqc; | |
2558 | ||
2559 | mask = adapter->flags & (IXGBE_FLAG_RSS_ENABLED | |
2560 | #ifdef CONFIG_IXGBE_DCB | |
2561 | | IXGBE_FLAG_DCB_ENABLED | |
2562 | #endif | |
1cdd1ec8 | 2563 | | IXGBE_FLAG_SRIOV_ENABLED |
0cefafad JB |
2564 | ); |
2565 | ||
2566 | switch (mask) { | |
2567 | case (IXGBE_FLAG_RSS_ENABLED): | |
2568 | mrqc = IXGBE_MRQC_RSSEN; | |
2569 | break; | |
1cdd1ec8 GR |
2570 | case (IXGBE_FLAG_SRIOV_ENABLED): |
2571 | mrqc = IXGBE_MRQC_VMDQEN; | |
2572 | break; | |
0cefafad JB |
2573 | #ifdef CONFIG_IXGBE_DCB |
2574 | case (IXGBE_FLAG_DCB_ENABLED): | |
2575 | mrqc = IXGBE_MRQC_RT8TCEN; | |
2576 | break; | |
2577 | #endif /* CONFIG_IXGBE_DCB */ | |
2578 | default: | |
2579 | break; | |
2580 | } | |
2581 | ||
2582 | return mrqc; | |
2583 | } | |
2584 | ||
bb5a9ad2 NS |
2585 | /** |
2586 | * ixgbe_configure_rscctl - enable RSC for the indicated ring | |
2587 | * @adapter: address of board private structure | |
2588 | * @index: index of ring to set | |
bb5a9ad2 | 2589 | **/ |
edd2ea55 | 2590 | static void ixgbe_configure_rscctl(struct ixgbe_adapter *adapter, int index) |
bb5a9ad2 NS |
2591 | { |
2592 | struct ixgbe_ring *rx_ring; | |
2593 | struct ixgbe_hw *hw = &adapter->hw; | |
2594 | int j; | |
2595 | u32 rscctrl; | |
edd2ea55 | 2596 | int rx_buf_len; |
bb5a9ad2 | 2597 | |
4a0b9ca0 | 2598 | rx_ring = adapter->rx_ring[index]; |
bb5a9ad2 | 2599 | j = rx_ring->reg_idx; |
edd2ea55 | 2600 | rx_buf_len = rx_ring->rx_buf_len; |
bb5a9ad2 NS |
2601 | rscctrl = IXGBE_READ_REG(hw, IXGBE_RSCCTL(j)); |
2602 | rscctrl |= IXGBE_RSCCTL_RSCEN; | |
2603 | /* | |
2604 | * we must limit the number of descriptors so that the | |
2605 | * total size of max desc * buf_len is not greater | |
2606 | * than 65535 | |
2607 | */ | |
2608 | if (rx_ring->flags & IXGBE_RING_RX_PS_ENABLED) { | |
2609 | #if (MAX_SKB_FRAGS > 16) | |
2610 | rscctrl |= IXGBE_RSCCTL_MAXDESC_16; | |
2611 | #elif (MAX_SKB_FRAGS > 8) | |
2612 | rscctrl |= IXGBE_RSCCTL_MAXDESC_8; | |
2613 | #elif (MAX_SKB_FRAGS > 4) | |
2614 | rscctrl |= IXGBE_RSCCTL_MAXDESC_4; | |
2615 | #else | |
2616 | rscctrl |= IXGBE_RSCCTL_MAXDESC_1; | |
2617 | #endif | |
2618 | } else { | |
2619 | if (rx_buf_len < IXGBE_RXBUFFER_4096) | |
2620 | rscctrl |= IXGBE_RSCCTL_MAXDESC_16; | |
2621 | else if (rx_buf_len < IXGBE_RXBUFFER_8192) | |
2622 | rscctrl |= IXGBE_RSCCTL_MAXDESC_8; | |
2623 | else | |
2624 | rscctrl |= IXGBE_RSCCTL_MAXDESC_4; | |
2625 | } | |
2626 | IXGBE_WRITE_REG(hw, IXGBE_RSCCTL(j), rscctrl); | |
2627 | } | |
2628 | ||
9a799d71 | 2629 | /** |
3a581073 | 2630 | * ixgbe_configure_rx - Configure 8259x Receive Unit after Reset |
9a799d71 AK |
2631 | * @adapter: board private structure |
2632 | * | |
2633 | * Configure the Rx unit of the MAC after a reset. | |
2634 | **/ | |
2635 | static void ixgbe_configure_rx(struct ixgbe_adapter *adapter) | |
2636 | { | |
2637 | u64 rdba; | |
2638 | struct ixgbe_hw *hw = &adapter->hw; | |
a6616b42 | 2639 | struct ixgbe_ring *rx_ring; |
9a799d71 AK |
2640 | struct net_device *netdev = adapter->netdev; |
2641 | int max_frame = netdev->mtu + ETH_HLEN + ETH_FCS_LEN; | |
021230d4 | 2642 | int i, j; |
9a799d71 | 2643 | u32 rdlen, rxctrl, rxcsum; |
7c6e0a43 JB |
2644 | static const u32 seed[10] = { 0xE291D73D, 0x1805EC6C, 0x2A94B30D, |
2645 | 0xA54F2BEC, 0xEA49AF7C, 0xE214AD3D, 0xB855AABE, | |
2646 | 0x6A3E67EA, 0x14364D17, 0x3BED200D}; | |
9a799d71 | 2647 | u32 fctrl, hlreg0; |
509ee935 | 2648 | u32 reta = 0, mrqc = 0; |
cc41ac7c | 2649 | u32 rdrxctl; |
7c6e0a43 | 2650 | int rx_buf_len; |
9a799d71 AK |
2651 | |
2652 | /* Decide whether to use packet split mode or not */ | |
1cdd1ec8 GR |
2653 | /* Do not use packet split if we're in SR-IOV Mode */ |
2654 | if (!adapter->num_vfs) | |
2655 | adapter->flags |= IXGBE_FLAG_RX_PS_ENABLED; | |
9a799d71 AK |
2656 | |
2657 | /* Set the RX buffer length according to the mode */ | |
2658 | if (adapter->flags & IXGBE_FLAG_RX_PS_ENABLED) { | |
7c6e0a43 | 2659 | rx_buf_len = IXGBE_RX_HDR_SIZE; |
e8e26350 PW |
2660 | if (hw->mac.type == ixgbe_mac_82599EB) { |
2661 | /* PSRTYPE must be initialized in 82599 */ | |
2662 | u32 psrtype = IXGBE_PSRTYPE_TCPHDR | | |
2663 | IXGBE_PSRTYPE_UDPHDR | | |
2664 | IXGBE_PSRTYPE_IPV4HDR | | |
dfa12f05 YZ |
2665 | IXGBE_PSRTYPE_IPV6HDR | |
2666 | IXGBE_PSRTYPE_L2HDR; | |
1cdd1ec8 GR |
2667 | IXGBE_WRITE_REG(hw, |
2668 | IXGBE_PSRTYPE(adapter->num_vfs), | |
2669 | psrtype); | |
e8e26350 | 2670 | } |
9a799d71 | 2671 | } else { |
0c19d6af | 2672 | if (!(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) && |
f8212f97 | 2673 | (netdev->mtu <= ETH_DATA_LEN)) |
7c6e0a43 | 2674 | rx_buf_len = MAXIMUM_ETHERNET_VLAN_SIZE; |
9a799d71 | 2675 | else |
7c6e0a43 | 2676 | rx_buf_len = ALIGN(max_frame, 1024); |
9a799d71 AK |
2677 | } |
2678 | ||
2679 | fctrl = IXGBE_READ_REG(&adapter->hw, IXGBE_FCTRL); | |
2680 | fctrl |= IXGBE_FCTRL_BAM; | |
021230d4 | 2681 | fctrl |= IXGBE_FCTRL_DPF; /* discard pause frames when FC enabled */ |
e8e26350 | 2682 | fctrl |= IXGBE_FCTRL_PMCF; |
9a799d71 AK |
2683 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_FCTRL, fctrl); |
2684 | ||
2685 | hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0); | |
2686 | if (adapter->netdev->mtu <= ETH_DATA_LEN) | |
2687 | hlreg0 &= ~IXGBE_HLREG0_JUMBOEN; | |
2688 | else | |
2689 | hlreg0 |= IXGBE_HLREG0_JUMBOEN; | |
63f39bd1 | 2690 | #ifdef IXGBE_FCOE |
f34c5c82 | 2691 | if (netdev->features & NETIF_F_FCOE_MTU) |
63f39bd1 YZ |
2692 | hlreg0 |= IXGBE_HLREG0_JUMBOEN; |
2693 | #endif | |
9a799d71 AK |
2694 | IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0); |
2695 | ||
4a0b9ca0 | 2696 | rdlen = adapter->rx_ring[0]->count * sizeof(union ixgbe_adv_rx_desc); |
9a799d71 AK |
2697 | /* disable receives while setting up the descriptors */ |
2698 | rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL); | |
2699 | IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl & ~IXGBE_RXCTRL_RXEN); | |
2700 | ||
0cefafad JB |
2701 | /* |
2702 | * Setup the HW Rx Head and Tail Descriptor Pointers and | |
2703 | * the Base and Length of the Rx Descriptor Ring | |
2704 | */ | |
9a799d71 | 2705 | for (i = 0; i < adapter->num_rx_queues; i++) { |
4a0b9ca0 | 2706 | rx_ring = adapter->rx_ring[i]; |
a6616b42 YZ |
2707 | rdba = rx_ring->dma; |
2708 | j = rx_ring->reg_idx; | |
284901a9 | 2709 | IXGBE_WRITE_REG(hw, IXGBE_RDBAL(j), (rdba & DMA_BIT_MASK(32))); |
7c6e0a43 JB |
2710 | IXGBE_WRITE_REG(hw, IXGBE_RDBAH(j), (rdba >> 32)); |
2711 | IXGBE_WRITE_REG(hw, IXGBE_RDLEN(j), rdlen); | |
2712 | IXGBE_WRITE_REG(hw, IXGBE_RDH(j), 0); | |
2713 | IXGBE_WRITE_REG(hw, IXGBE_RDT(j), 0); | |
a6616b42 YZ |
2714 | rx_ring->head = IXGBE_RDH(j); |
2715 | rx_ring->tail = IXGBE_RDT(j); | |
2716 | rx_ring->rx_buf_len = rx_buf_len; | |
cc41ac7c | 2717 | |
6e455b89 YZ |
2718 | if (adapter->flags & IXGBE_FLAG_RX_PS_ENABLED) |
2719 | rx_ring->flags |= IXGBE_RING_RX_PS_ENABLED; | |
1b3ff02e PWJ |
2720 | else |
2721 | rx_ring->flags &= ~IXGBE_RING_RX_PS_ENABLED; | |
cc41ac7c | 2722 | |
63f39bd1 | 2723 | #ifdef IXGBE_FCOE |
f34c5c82 | 2724 | if (netdev->features & NETIF_F_FCOE_MTU) { |
63f39bd1 YZ |
2725 | struct ixgbe_ring_feature *f; |
2726 | f = &adapter->ring_feature[RING_F_FCOE]; | |
6e455b89 YZ |
2727 | if ((i >= f->mask) && (i < f->mask + f->indices)) { |
2728 | rx_ring->flags &= ~IXGBE_RING_RX_PS_ENABLED; | |
2729 | if (rx_buf_len < IXGBE_FCOE_JUMBO_FRAME_SIZE) | |
2730 | rx_ring->rx_buf_len = | |
2731 | IXGBE_FCOE_JUMBO_FRAME_SIZE; | |
2732 | } | |
63f39bd1 YZ |
2733 | } |
2734 | ||
2735 | #endif /* IXGBE_FCOE */ | |
a6616b42 | 2736 | ixgbe_configure_srrctl(adapter, rx_ring); |
9a799d71 AK |
2737 | } |
2738 | ||
e8e26350 PW |
2739 | if (hw->mac.type == ixgbe_mac_82598EB) { |
2740 | /* | |
2741 | * For VMDq support of different descriptor types or | |
2742 | * buffer sizes through the use of multiple SRRCTL | |
2743 | * registers, RDRXCTL.MVMEN must be set to 1 | |
2744 | * | |
2745 | * also, the manual doesn't mention it clearly but DCA hints | |
2746 | * will only use queue 0's tags unless this bit is set. Side | |
2747 | * effects of setting this bit are only that SRRCTL must be | |
2748 | * fully programmed [0..15] | |
2749 | */ | |
2a41ff81 JB |
2750 | rdrxctl = IXGBE_READ_REG(hw, IXGBE_RDRXCTL); |
2751 | rdrxctl |= IXGBE_RDRXCTL_MVMEN; | |
2752 | IXGBE_WRITE_REG(hw, IXGBE_RDRXCTL, rdrxctl); | |
2f90b865 | 2753 | } |
177db6ff | 2754 | |
1cdd1ec8 GR |
2755 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { |
2756 | u32 vt_reg_bits; | |
2757 | u32 reg_offset, vf_shift; | |
2758 | u32 vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL); | |
2759 | vt_reg_bits = IXGBE_VMD_CTL_VMDQ_EN | |
2760 | | IXGBE_VT_CTL_REPLEN; | |
2761 | vt_reg_bits |= (adapter->num_vfs << | |
2762 | IXGBE_VT_CTL_POOL_SHIFT); | |
2763 | IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl | vt_reg_bits); | |
2764 | IXGBE_WRITE_REG(hw, IXGBE_MRQC, 0); | |
2765 | ||
2766 | vf_shift = adapter->num_vfs % 32; | |
2767 | reg_offset = adapter->num_vfs / 32; | |
2768 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), 0); | |
2769 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), 0); | |
2770 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), 0); | |
2771 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), 0); | |
2772 | /* Enable only the PF's pool for Tx/Rx */ | |
2773 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), (1 << vf_shift)); | |
2774 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), (1 << vf_shift)); | |
2775 | IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN); | |
f0412776 | 2776 | ixgbe_set_vmolr(hw, adapter->num_vfs, true); |
1cdd1ec8 GR |
2777 | } |
2778 | ||
e8e26350 | 2779 | /* Program MRQC for the distribution of queues */ |
0cefafad | 2780 | mrqc = ixgbe_setup_mrqc(adapter); |
e8e26350 | 2781 | |
021230d4 | 2782 | if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) { |
9a799d71 | 2783 | /* Fill out redirection table */ |
021230d4 AV |
2784 | for (i = 0, j = 0; i < 128; i++, j++) { |
2785 | if (j == adapter->ring_feature[RING_F_RSS].indices) | |
2786 | j = 0; | |
2787 | /* reta = 4-byte sliding window of | |
2788 | * 0x00..(indices-1)(indices-1)00..etc. */ | |
2789 | reta = (reta << 8) | (j * 0x11); | |
2790 | if ((i & 3) == 3) | |
2791 | IXGBE_WRITE_REG(hw, IXGBE_RETA(i >> 2), reta); | |
9a799d71 AK |
2792 | } |
2793 | ||
2794 | /* Fill out hash function seeds */ | |
2795 | for (i = 0; i < 10; i++) | |
7c6e0a43 | 2796 | IXGBE_WRITE_REG(hw, IXGBE_RSSRK(i), seed[i]); |
9a799d71 | 2797 | |
2a41ff81 JB |
2798 | if (hw->mac.type == ixgbe_mac_82598EB) |
2799 | mrqc |= IXGBE_MRQC_RSSEN; | |
9a799d71 | 2800 | /* Perform hash on these packet types */ |
2a41ff81 JB |
2801 | mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4 |
2802 | | IXGBE_MRQC_RSS_FIELD_IPV4_TCP | |
2803 | | IXGBE_MRQC_RSS_FIELD_IPV4_UDP | |
2804 | | IXGBE_MRQC_RSS_FIELD_IPV6 | |
2805 | | IXGBE_MRQC_RSS_FIELD_IPV6_TCP | |
2806 | | IXGBE_MRQC_RSS_FIELD_IPV6_UDP; | |
021230d4 | 2807 | } |
2a41ff81 | 2808 | IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc); |
9a799d71 | 2809 | |
1cdd1ec8 GR |
2810 | if (adapter->num_vfs) { |
2811 | u32 reg; | |
2812 | ||
2813 | /* Map PF MAC address in RAR Entry 0 to first pool | |
2814 | * following VFs */ | |
2815 | hw->mac.ops.set_vmdq(hw, 0, adapter->num_vfs); | |
2816 | ||
2817 | /* Set up VF register offsets for selected VT Mode, i.e. | |
2818 | * 64 VFs for SR-IOV */ | |
2819 | reg = IXGBE_READ_REG(hw, IXGBE_GCR_EXT); | |
2820 | reg |= IXGBE_GCR_EXT_SRIOV; | |
2821 | IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, reg); | |
2822 | } | |
2823 | ||
021230d4 AV |
2824 | rxcsum = IXGBE_READ_REG(hw, IXGBE_RXCSUM); |
2825 | ||
2826 | if (adapter->flags & IXGBE_FLAG_RSS_ENABLED || | |
2827 | adapter->flags & IXGBE_FLAG_RX_CSUM_ENABLED) { | |
2828 | /* Disable indicating checksum in descriptor, enables | |
2829 | * RSS hash */ | |
9a799d71 | 2830 | rxcsum |= IXGBE_RXCSUM_PCSD; |
9a799d71 | 2831 | } |
021230d4 AV |
2832 | if (!(rxcsum & IXGBE_RXCSUM_PCSD)) { |
2833 | /* Enable IPv4 payload checksum for UDP fragments | |
2834 | * if PCSD is not set */ | |
2835 | rxcsum |= IXGBE_RXCSUM_IPPCSE; | |
2836 | } | |
2837 | ||
2838 | IXGBE_WRITE_REG(hw, IXGBE_RXCSUM, rxcsum); | |
e8e26350 PW |
2839 | |
2840 | if (hw->mac.type == ixgbe_mac_82599EB) { | |
2841 | rdrxctl = IXGBE_READ_REG(hw, IXGBE_RDRXCTL); | |
2842 | rdrxctl |= IXGBE_RDRXCTL_CRCSTRIP; | |
f8212f97 | 2843 | rdrxctl &= ~IXGBE_RDRXCTL_RSCFRSTSIZE; |
e8e26350 PW |
2844 | IXGBE_WRITE_REG(hw, IXGBE_RDRXCTL, rdrxctl); |
2845 | } | |
f8212f97 | 2846 | |
0c19d6af | 2847 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) { |
f8212f97 | 2848 | /* Enable 82599 HW-RSC */ |
bb5a9ad2 | 2849 | for (i = 0; i < adapter->num_rx_queues; i++) |
edd2ea55 | 2850 | ixgbe_configure_rscctl(adapter, i); |
bb5a9ad2 | 2851 | |
f8212f97 AD |
2852 | /* Disable RSC for ACK packets */ |
2853 | IXGBE_WRITE_REG(hw, IXGBE_RSCDBU, | |
2854 | (IXGBE_RSCDBU_RSCACKDIS | IXGBE_READ_REG(hw, IXGBE_RSCDBU))); | |
2855 | } | |
9a799d71 AK |
2856 | } |
2857 | ||
068c89b0 DS |
2858 | static void ixgbe_vlan_rx_add_vid(struct net_device *netdev, u16 vid) |
2859 | { | |
2860 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
2861 | struct ixgbe_hw *hw = &adapter->hw; | |
1ada1b1b | 2862 | int pool_ndx = adapter->num_vfs; |
068c89b0 DS |
2863 | |
2864 | /* add VID to filter table */ | |
1ada1b1b | 2865 | hw->mac.ops.set_vfta(&adapter->hw, vid, pool_ndx, true); |
068c89b0 DS |
2866 | } |
2867 | ||
2868 | static void ixgbe_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) | |
2869 | { | |
2870 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
2871 | struct ixgbe_hw *hw = &adapter->hw; | |
1ada1b1b | 2872 | int pool_ndx = adapter->num_vfs; |
068c89b0 DS |
2873 | |
2874 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) | |
2875 | ixgbe_irq_disable(adapter); | |
2876 | ||
2877 | vlan_group_set_device(adapter->vlgrp, vid, NULL); | |
2878 | ||
2879 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) | |
2880 | ixgbe_irq_enable(adapter); | |
2881 | ||
2882 | /* remove VID from filter table */ | |
1ada1b1b | 2883 | hw->mac.ops.set_vfta(&adapter->hw, vid, pool_ndx, false); |
068c89b0 DS |
2884 | } |
2885 | ||
5f6c0181 JB |
2886 | /** |
2887 | * ixgbe_vlan_filter_disable - helper to disable hw vlan filtering | |
2888 | * @adapter: driver data | |
2889 | */ | |
2890 | static void ixgbe_vlan_filter_disable(struct ixgbe_adapter *adapter) | |
2891 | { | |
2892 | struct ixgbe_hw *hw = &adapter->hw; | |
2893 | u32 vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); | |
2894 | int i, j; | |
2895 | ||
2896 | switch (hw->mac.type) { | |
2897 | case ixgbe_mac_82598EB: | |
38e0bd98 YZ |
2898 | vlnctrl &= ~IXGBE_VLNCTRL_VFE; |
2899 | #ifdef CONFIG_IXGBE_DCB | |
2900 | if (!(adapter->flags & IXGBE_FLAG_DCB_ENABLED)) | |
2901 | vlnctrl &= ~IXGBE_VLNCTRL_VME; | |
2902 | #endif | |
5f6c0181 JB |
2903 | vlnctrl &= ~IXGBE_VLNCTRL_CFIEN; |
2904 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); | |
2905 | break; | |
2906 | case ixgbe_mac_82599EB: | |
2907 | vlnctrl &= ~IXGBE_VLNCTRL_VFE; | |
2908 | vlnctrl &= ~IXGBE_VLNCTRL_CFIEN; | |
2909 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); | |
38e0bd98 YZ |
2910 | #ifdef CONFIG_IXGBE_DCB |
2911 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) | |
2912 | break; | |
2913 | #endif | |
5f6c0181 JB |
2914 | for (i = 0; i < adapter->num_rx_queues; i++) { |
2915 | j = adapter->rx_ring[i]->reg_idx; | |
2916 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(j)); | |
2917 | vlnctrl &= ~IXGBE_RXDCTL_VME; | |
2918 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(j), vlnctrl); | |
2919 | } | |
2920 | break; | |
2921 | default: | |
2922 | break; | |
2923 | } | |
2924 | } | |
2925 | ||
2926 | /** | |
2927 | * ixgbe_vlan_filter_enable - helper to enable hw vlan filtering | |
2928 | * @adapter: driver data | |
2929 | */ | |
2930 | static void ixgbe_vlan_filter_enable(struct ixgbe_adapter *adapter) | |
2931 | { | |
2932 | struct ixgbe_hw *hw = &adapter->hw; | |
2933 | u32 vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); | |
2934 | int i, j; | |
2935 | ||
2936 | switch (hw->mac.type) { | |
2937 | case ixgbe_mac_82598EB: | |
2938 | vlnctrl |= IXGBE_VLNCTRL_VME | IXGBE_VLNCTRL_VFE; | |
2939 | vlnctrl &= ~IXGBE_VLNCTRL_CFIEN; | |
2940 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); | |
2941 | break; | |
2942 | case ixgbe_mac_82599EB: | |
2943 | vlnctrl |= IXGBE_VLNCTRL_VFE; | |
2944 | vlnctrl &= ~IXGBE_VLNCTRL_CFIEN; | |
2945 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); | |
2946 | for (i = 0; i < adapter->num_rx_queues; i++) { | |
2947 | j = adapter->rx_ring[i]->reg_idx; | |
2948 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(j)); | |
2949 | vlnctrl |= IXGBE_RXDCTL_VME; | |
2950 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(j), vlnctrl); | |
2951 | } | |
2952 | break; | |
2953 | default: | |
2954 | break; | |
2955 | } | |
2956 | } | |
2957 | ||
9a799d71 | 2958 | static void ixgbe_vlan_rx_register(struct net_device *netdev, |
b4617240 | 2959 | struct vlan_group *grp) |
9a799d71 AK |
2960 | { |
2961 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
9a799d71 | 2962 | |
d4f80882 AV |
2963 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
2964 | ixgbe_irq_disable(adapter); | |
9a799d71 AK |
2965 | adapter->vlgrp = grp; |
2966 | ||
2f90b865 AD |
2967 | /* |
2968 | * For a DCB driver, always enable VLAN tag stripping so we can | |
2969 | * still receive traffic from a DCB-enabled host even if we're | |
2970 | * not in DCB mode. | |
2971 | */ | |
5f6c0181 | 2972 | ixgbe_vlan_filter_enable(adapter); |
dc63d377 | 2973 | |
e8e26350 | 2974 | ixgbe_vlan_rx_add_vid(netdev, 0); |
9a799d71 | 2975 | |
d4f80882 AV |
2976 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
2977 | ixgbe_irq_enable(adapter); | |
9a799d71 AK |
2978 | } |
2979 | ||
9a799d71 AK |
2980 | static void ixgbe_restore_vlan(struct ixgbe_adapter *adapter) |
2981 | { | |
2982 | ixgbe_vlan_rx_register(adapter->netdev, adapter->vlgrp); | |
2983 | ||
2984 | if (adapter->vlgrp) { | |
2985 | u16 vid; | |
2986 | for (vid = 0; vid < VLAN_GROUP_ARRAY_LEN; vid++) { | |
2987 | if (!vlan_group_get_device(adapter->vlgrp, vid)) | |
2988 | continue; | |
2989 | ixgbe_vlan_rx_add_vid(adapter->netdev, vid); | |
2990 | } | |
2991 | } | |
2992 | } | |
2993 | ||
2850062a AD |
2994 | /** |
2995 | * ixgbe_write_uc_addr_list - write unicast addresses to RAR table | |
2996 | * @netdev: network interface device structure | |
2997 | * | |
2998 | * Writes unicast address list to the RAR table. | |
2999 | * Returns: -ENOMEM on failure/insufficient address space | |
3000 | * 0 on no addresses written | |
3001 | * X on writing X addresses to the RAR table | |
3002 | **/ | |
3003 | static int ixgbe_write_uc_addr_list(struct net_device *netdev) | |
3004 | { | |
3005 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
3006 | struct ixgbe_hw *hw = &adapter->hw; | |
3007 | unsigned int vfn = adapter->num_vfs; | |
3008 | unsigned int rar_entries = hw->mac.num_rar_entries - (vfn + 1); | |
3009 | int count = 0; | |
3010 | ||
3011 | /* return ENOMEM indicating insufficient memory for addresses */ | |
3012 | if (netdev_uc_count(netdev) > rar_entries) | |
3013 | return -ENOMEM; | |
3014 | ||
3015 | if (!netdev_uc_empty(netdev) && rar_entries) { | |
3016 | struct netdev_hw_addr *ha; | |
3017 | /* return error if we do not support writing to RAR table */ | |
3018 | if (!hw->mac.ops.set_rar) | |
3019 | return -ENOMEM; | |
3020 | ||
3021 | netdev_for_each_uc_addr(ha, netdev) { | |
3022 | if (!rar_entries) | |
3023 | break; | |
3024 | hw->mac.ops.set_rar(hw, rar_entries--, ha->addr, | |
3025 | vfn, IXGBE_RAH_AV); | |
3026 | count++; | |
3027 | } | |
3028 | } | |
3029 | /* write the addresses in reverse order to avoid write combining */ | |
3030 | for (; rar_entries > 0 ; rar_entries--) | |
3031 | hw->mac.ops.clear_rar(hw, rar_entries); | |
3032 | ||
3033 | return count; | |
3034 | } | |
3035 | ||
9a799d71 | 3036 | /** |
2c5645cf | 3037 | * ixgbe_set_rx_mode - Unicast, Multicast and Promiscuous mode set |
9a799d71 AK |
3038 | * @netdev: network interface device structure |
3039 | * | |
2c5645cf CL |
3040 | * The set_rx_method entry point is called whenever the unicast/multicast |
3041 | * address list or the network interface flags are updated. This routine is | |
3042 | * responsible for configuring the hardware for proper unicast, multicast and | |
3043 | * promiscuous mode. | |
9a799d71 | 3044 | **/ |
7f870475 | 3045 | void ixgbe_set_rx_mode(struct net_device *netdev) |
9a799d71 AK |
3046 | { |
3047 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
3048 | struct ixgbe_hw *hw = &adapter->hw; | |
2850062a AD |
3049 | u32 fctrl, vmolr = IXGBE_VMOLR_BAM | IXGBE_VMOLR_AUPE; |
3050 | int count; | |
9a799d71 AK |
3051 | |
3052 | /* Check for Promiscuous and All Multicast modes */ | |
3053 | ||
3054 | fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL); | |
3055 | ||
2850062a AD |
3056 | /* clear the bits we are changing the status of */ |
3057 | fctrl &= ~(IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE); | |
3058 | ||
9a799d71 | 3059 | if (netdev->flags & IFF_PROMISC) { |
e433ea1f | 3060 | hw->addr_ctrl.user_set_promisc = true; |
9a799d71 | 3061 | fctrl |= (IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE); |
2850062a | 3062 | vmolr |= (IXGBE_VMOLR_ROPE | IXGBE_VMOLR_MPE); |
5f6c0181 JB |
3063 | /* don't hardware filter vlans in promisc mode */ |
3064 | ixgbe_vlan_filter_disable(adapter); | |
9a799d71 | 3065 | } else { |
746b9f02 PM |
3066 | if (netdev->flags & IFF_ALLMULTI) { |
3067 | fctrl |= IXGBE_FCTRL_MPE; | |
2850062a AD |
3068 | vmolr |= IXGBE_VMOLR_MPE; |
3069 | } else { | |
3070 | /* | |
3071 | * Write addresses to the MTA, if the attempt fails | |
3072 | * then we should just turn on promiscous mode so | |
3073 | * that we can at least receive multicast traffic | |
3074 | */ | |
3075 | hw->mac.ops.update_mc_addr_list(hw, netdev); | |
3076 | vmolr |= IXGBE_VMOLR_ROMPE; | |
746b9f02 | 3077 | } |
5f6c0181 | 3078 | ixgbe_vlan_filter_enable(adapter); |
e433ea1f | 3079 | hw->addr_ctrl.user_set_promisc = false; |
2850062a AD |
3080 | /* |
3081 | * Write addresses to available RAR registers, if there is not | |
3082 | * sufficient space to store all the addresses then enable | |
3083 | * unicast promiscous mode | |
3084 | */ | |
3085 | count = ixgbe_write_uc_addr_list(netdev); | |
3086 | if (count < 0) { | |
3087 | fctrl |= IXGBE_FCTRL_UPE; | |
3088 | vmolr |= IXGBE_VMOLR_ROPE; | |
3089 | } | |
9a799d71 AK |
3090 | } |
3091 | ||
2850062a | 3092 | if (adapter->num_vfs) { |
1cdd1ec8 | 3093 | ixgbe_restore_vf_multicasts(adapter); |
2850062a AD |
3094 | vmolr |= IXGBE_READ_REG(hw, IXGBE_VMOLR(adapter->num_vfs)) & |
3095 | ~(IXGBE_VMOLR_MPE | IXGBE_VMOLR_ROMPE | | |
3096 | IXGBE_VMOLR_ROPE); | |
3097 | IXGBE_WRITE_REG(hw, IXGBE_VMOLR(adapter->num_vfs), vmolr); | |
3098 | } | |
3099 | ||
3100 | IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl); | |
9a799d71 AK |
3101 | } |
3102 | ||
021230d4 AV |
3103 | static void ixgbe_napi_enable_all(struct ixgbe_adapter *adapter) |
3104 | { | |
3105 | int q_idx; | |
3106 | struct ixgbe_q_vector *q_vector; | |
3107 | int q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; | |
3108 | ||
3109 | /* legacy and MSI only use one vector */ | |
3110 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) | |
3111 | q_vectors = 1; | |
3112 | ||
3113 | for (q_idx = 0; q_idx < q_vectors; q_idx++) { | |
f0848276 | 3114 | struct napi_struct *napi; |
7a921c93 | 3115 | q_vector = adapter->q_vector[q_idx]; |
f0848276 | 3116 | napi = &q_vector->napi; |
91281fd3 AD |
3117 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
3118 | if (!q_vector->rxr_count || !q_vector->txr_count) { | |
3119 | if (q_vector->txr_count == 1) | |
3120 | napi->poll = &ixgbe_clean_txonly; | |
3121 | else if (q_vector->rxr_count == 1) | |
3122 | napi->poll = &ixgbe_clean_rxonly; | |
3123 | } | |
3124 | } | |
f0848276 JB |
3125 | |
3126 | napi_enable(napi); | |
021230d4 AV |
3127 | } |
3128 | } | |
3129 | ||
3130 | static void ixgbe_napi_disable_all(struct ixgbe_adapter *adapter) | |
3131 | { | |
3132 | int q_idx; | |
3133 | struct ixgbe_q_vector *q_vector; | |
3134 | int q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; | |
3135 | ||
3136 | /* legacy and MSI only use one vector */ | |
3137 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) | |
3138 | q_vectors = 1; | |
3139 | ||
3140 | for (q_idx = 0; q_idx < q_vectors; q_idx++) { | |
7a921c93 | 3141 | q_vector = adapter->q_vector[q_idx]; |
021230d4 AV |
3142 | napi_disable(&q_vector->napi); |
3143 | } | |
3144 | } | |
3145 | ||
7a6b6f51 | 3146 | #ifdef CONFIG_IXGBE_DCB |
2f90b865 AD |
3147 | /* |
3148 | * ixgbe_configure_dcb - Configure DCB hardware | |
3149 | * @adapter: ixgbe adapter struct | |
3150 | * | |
3151 | * This is called by the driver on open to configure the DCB hardware. | |
3152 | * This is also called by the gennetlink interface when reconfiguring | |
3153 | * the DCB state. | |
3154 | */ | |
3155 | static void ixgbe_configure_dcb(struct ixgbe_adapter *adapter) | |
3156 | { | |
3157 | struct ixgbe_hw *hw = &adapter->hw; | |
5f6c0181 | 3158 | u32 txdctl; |
2f90b865 AD |
3159 | int i, j; |
3160 | ||
3161 | ixgbe_dcb_check_config(&adapter->dcb_cfg); | |
3162 | ixgbe_dcb_calculate_tc_credits(&adapter->dcb_cfg, DCB_TX_CONFIG); | |
3163 | ixgbe_dcb_calculate_tc_credits(&adapter->dcb_cfg, DCB_RX_CONFIG); | |
3164 | ||
3165 | /* reconfigure the hardware */ | |
3166 | ixgbe_dcb_hw_config(&adapter->hw, &adapter->dcb_cfg); | |
3167 | ||
3168 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
4a0b9ca0 | 3169 | j = adapter->tx_ring[i]->reg_idx; |
2f90b865 AD |
3170 | txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(j)); |
3171 | /* PThresh workaround for Tx hang with DFP enabled. */ | |
3172 | txdctl |= 32; | |
3173 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(j), txdctl); | |
3174 | } | |
3175 | /* Enable VLAN tag insert/strip */ | |
5f6c0181 JB |
3176 | ixgbe_vlan_filter_enable(adapter); |
3177 | ||
2f90b865 AD |
3178 | hw->mac.ops.set_vfta(&adapter->hw, 0, 0, true); |
3179 | } | |
3180 | ||
3181 | #endif | |
9a799d71 AK |
3182 | static void ixgbe_configure(struct ixgbe_adapter *adapter) |
3183 | { | |
3184 | struct net_device *netdev = adapter->netdev; | |
c4cf55e5 | 3185 | struct ixgbe_hw *hw = &adapter->hw; |
9a799d71 AK |
3186 | int i; |
3187 | ||
2c5645cf | 3188 | ixgbe_set_rx_mode(netdev); |
9a799d71 AK |
3189 | |
3190 | ixgbe_restore_vlan(adapter); | |
7a6b6f51 | 3191 | #ifdef CONFIG_IXGBE_DCB |
2f90b865 | 3192 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { |
b352e40d YZ |
3193 | if (hw->mac.type == ixgbe_mac_82598EB) |
3194 | netif_set_gso_max_size(netdev, 32768); | |
3195 | else | |
3196 | netif_set_gso_max_size(netdev, 65536); | |
2f90b865 AD |
3197 | ixgbe_configure_dcb(adapter); |
3198 | } else { | |
3199 | netif_set_gso_max_size(netdev, 65536); | |
3200 | } | |
3201 | #else | |
3202 | netif_set_gso_max_size(netdev, 65536); | |
3203 | #endif | |
9a799d71 | 3204 | |
eacd73f7 YZ |
3205 | #ifdef IXGBE_FCOE |
3206 | if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) | |
3207 | ixgbe_configure_fcoe(adapter); | |
3208 | ||
3209 | #endif /* IXGBE_FCOE */ | |
c4cf55e5 PWJ |
3210 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { |
3211 | for (i = 0; i < adapter->num_tx_queues; i++) | |
4a0b9ca0 | 3212 | adapter->tx_ring[i]->atr_sample_rate = |
c4cf55e5 PWJ |
3213 | adapter->atr_sample_rate; |
3214 | ixgbe_init_fdir_signature_82599(hw, adapter->fdir_pballoc); | |
3215 | } else if (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) { | |
3216 | ixgbe_init_fdir_perfect_82599(hw, adapter->fdir_pballoc); | |
3217 | } | |
3218 | ||
9a799d71 AK |
3219 | ixgbe_configure_tx(adapter); |
3220 | ixgbe_configure_rx(adapter); | |
3221 | for (i = 0; i < adapter->num_rx_queues; i++) | |
4a0b9ca0 PW |
3222 | ixgbe_alloc_rx_buffers(adapter, adapter->rx_ring[i], |
3223 | (adapter->rx_ring[i]->count - 1)); | |
9a799d71 AK |
3224 | } |
3225 | ||
e8e26350 PW |
3226 | static inline bool ixgbe_is_sfp(struct ixgbe_hw *hw) |
3227 | { | |
3228 | switch (hw->phy.type) { | |
3229 | case ixgbe_phy_sfp_avago: | |
3230 | case ixgbe_phy_sfp_ftl: | |
3231 | case ixgbe_phy_sfp_intel: | |
3232 | case ixgbe_phy_sfp_unknown: | |
ea0a04df DS |
3233 | case ixgbe_phy_sfp_passive_tyco: |
3234 | case ixgbe_phy_sfp_passive_unknown: | |
3235 | case ixgbe_phy_sfp_active_unknown: | |
3236 | case ixgbe_phy_sfp_ftl_active: | |
e8e26350 PW |
3237 | return true; |
3238 | default: | |
3239 | return false; | |
3240 | } | |
3241 | } | |
3242 | ||
0ecc061d | 3243 | /** |
e8e26350 PW |
3244 | * ixgbe_sfp_link_config - set up SFP+ link |
3245 | * @adapter: pointer to private adapter struct | |
3246 | **/ | |
3247 | static void ixgbe_sfp_link_config(struct ixgbe_adapter *adapter) | |
3248 | { | |
3249 | struct ixgbe_hw *hw = &adapter->hw; | |
3250 | ||
3251 | if (hw->phy.multispeed_fiber) { | |
3252 | /* | |
3253 | * In multispeed fiber setups, the device may not have | |
3254 | * had a physical connection when the driver loaded. | |
3255 | * If that's the case, the initial link configuration | |
3256 | * couldn't get the MAC into 10G or 1G mode, so we'll | |
3257 | * never have a link status change interrupt fire. | |
3258 | * We need to try and force an autonegotiation | |
3259 | * session, then bring up link. | |
3260 | */ | |
3261 | hw->mac.ops.setup_sfp(hw); | |
3262 | if (!(adapter->flags & IXGBE_FLAG_IN_SFP_LINK_TASK)) | |
3263 | schedule_work(&adapter->multispeed_fiber_task); | |
3264 | } else { | |
3265 | /* | |
3266 | * Direct Attach Cu and non-multispeed fiber modules | |
3267 | * still need to be configured properly prior to | |
3268 | * attempting link. | |
3269 | */ | |
3270 | if (!(adapter->flags & IXGBE_FLAG_IN_SFP_MOD_TASK)) | |
3271 | schedule_work(&adapter->sfp_config_module_task); | |
3272 | } | |
3273 | } | |
3274 | ||
3275 | /** | |
3276 | * ixgbe_non_sfp_link_config - set up non-SFP+ link | |
0ecc061d PWJ |
3277 | * @hw: pointer to private hardware struct |
3278 | * | |
3279 | * Returns 0 on success, negative on failure | |
3280 | **/ | |
e8e26350 | 3281 | static int ixgbe_non_sfp_link_config(struct ixgbe_hw *hw) |
0ecc061d PWJ |
3282 | { |
3283 | u32 autoneg; | |
8620a103 | 3284 | bool negotiation, link_up = false; |
0ecc061d PWJ |
3285 | u32 ret = IXGBE_ERR_LINK_SETUP; |
3286 | ||
3287 | if (hw->mac.ops.check_link) | |
3288 | ret = hw->mac.ops.check_link(hw, &autoneg, &link_up, false); | |
3289 | ||
3290 | if (ret) | |
3291 | goto link_cfg_out; | |
3292 | ||
3293 | if (hw->mac.ops.get_link_capabilities) | |
8620a103 | 3294 | ret = hw->mac.ops.get_link_capabilities(hw, &autoneg, &negotiation); |
0ecc061d PWJ |
3295 | if (ret) |
3296 | goto link_cfg_out; | |
3297 | ||
8620a103 MC |
3298 | if (hw->mac.ops.setup_link) |
3299 | ret = hw->mac.ops.setup_link(hw, autoneg, negotiation, link_up); | |
0ecc061d PWJ |
3300 | link_cfg_out: |
3301 | return ret; | |
3302 | } | |
3303 | ||
e8e26350 PW |
3304 | #define IXGBE_MAX_RX_DESC_POLL 10 |
3305 | static inline void ixgbe_rx_desc_queue_enable(struct ixgbe_adapter *adapter, | |
3306 | int rxr) | |
3307 | { | |
4a0b9ca0 | 3308 | int j = adapter->rx_ring[rxr]->reg_idx; |
e8e26350 PW |
3309 | int k; |
3310 | ||
3311 | for (k = 0; k < IXGBE_MAX_RX_DESC_POLL; k++) { | |
3312 | if (IXGBE_READ_REG(&adapter->hw, | |
3313 | IXGBE_RXDCTL(j)) & IXGBE_RXDCTL_ENABLE) | |
3314 | break; | |
3315 | else | |
3316 | msleep(1); | |
3317 | } | |
3318 | if (k >= IXGBE_MAX_RX_DESC_POLL) { | |
396e799c | 3319 | e_err(drv, "RXDCTL.ENABLE on Rx queue %d not set within " |
849c4542 | 3320 | "the polling period\n", rxr); |
e8e26350 | 3321 | } |
4a0b9ca0 PW |
3322 | ixgbe_release_rx_desc(&adapter->hw, adapter->rx_ring[rxr], |
3323 | (adapter->rx_ring[rxr]->count - 1)); | |
e8e26350 PW |
3324 | } |
3325 | ||
9a799d71 AK |
3326 | static int ixgbe_up_complete(struct ixgbe_adapter *adapter) |
3327 | { | |
3328 | struct net_device *netdev = adapter->netdev; | |
9a799d71 | 3329 | struct ixgbe_hw *hw = &adapter->hw; |
021230d4 | 3330 | int i, j = 0; |
e8e26350 | 3331 | int num_rx_rings = adapter->num_rx_queues; |
0ecc061d | 3332 | int err; |
9a799d71 | 3333 | int max_frame = netdev->mtu + ETH_HLEN + ETH_FCS_LEN; |
021230d4 | 3334 | u32 txdctl, rxdctl, mhadd; |
e8e26350 | 3335 | u32 dmatxctl; |
021230d4 | 3336 | u32 gpie; |
c9205697 | 3337 | u32 ctrl_ext; |
9a799d71 | 3338 | |
5eba3699 AV |
3339 | ixgbe_get_hw_control(adapter); |
3340 | ||
021230d4 AV |
3341 | if ((adapter->flags & IXGBE_FLAG_MSIX_ENABLED) || |
3342 | (adapter->flags & IXGBE_FLAG_MSI_ENABLED)) { | |
9a799d71 AK |
3343 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
3344 | gpie = (IXGBE_GPIE_MSIX_MODE | IXGBE_GPIE_EIAME | | |
b4617240 | 3345 | IXGBE_GPIE_PBA_SUPPORT | IXGBE_GPIE_OCD); |
9a799d71 AK |
3346 | } else { |
3347 | /* MSI only */ | |
021230d4 | 3348 | gpie = 0; |
9a799d71 | 3349 | } |
1cdd1ec8 GR |
3350 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { |
3351 | gpie &= ~IXGBE_GPIE_VTMODE_MASK; | |
3352 | gpie |= IXGBE_GPIE_VTMODE_64; | |
3353 | } | |
021230d4 AV |
3354 | /* XXX: to interrupt immediately for EICS writes, enable this */ |
3355 | /* gpie |= IXGBE_GPIE_EIMEN; */ | |
3356 | IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); | |
9a799d71 AK |
3357 | } |
3358 | ||
9b471446 JB |
3359 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
3360 | /* | |
3361 | * use EIAM to auto-mask when MSI-X interrupt is asserted | |
3362 | * this saves a register write for every interrupt | |
3363 | */ | |
3364 | switch (hw->mac.type) { | |
3365 | case ixgbe_mac_82598EB: | |
3366 | IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE); | |
3367 | break; | |
3368 | default: | |
3369 | case ixgbe_mac_82599EB: | |
3370 | IXGBE_WRITE_REG(hw, IXGBE_EIAM_EX(0), 0xFFFFFFFF); | |
3371 | IXGBE_WRITE_REG(hw, IXGBE_EIAM_EX(1), 0xFFFFFFFF); | |
3372 | break; | |
3373 | } | |
3374 | } else { | |
021230d4 AV |
3375 | /* legacy interrupts, use EIAM to auto-mask when reading EICR, |
3376 | * specifically only auto mask tx and rx interrupts */ | |
3377 | IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE); | |
3378 | } | |
9a799d71 | 3379 | |
119fc60a MC |
3380 | /* Enable Thermal over heat sensor interrupt */ |
3381 | if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) { | |
3382 | gpie = IXGBE_READ_REG(hw, IXGBE_GPIE); | |
3383 | gpie |= IXGBE_SDP0_GPIEN; | |
3384 | IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); | |
3385 | } | |
3386 | ||
0befdb3e JB |
3387 | /* Enable fan failure interrupt if media type is copper */ |
3388 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) { | |
3389 | gpie = IXGBE_READ_REG(hw, IXGBE_GPIE); | |
3390 | gpie |= IXGBE_SDP1_GPIEN; | |
3391 | IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); | |
3392 | } | |
3393 | ||
e8e26350 PW |
3394 | if (hw->mac.type == ixgbe_mac_82599EB) { |
3395 | gpie = IXGBE_READ_REG(hw, IXGBE_GPIE); | |
3396 | gpie |= IXGBE_SDP1_GPIEN; | |
3397 | gpie |= IXGBE_SDP2_GPIEN; | |
3398 | IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); | |
3399 | } | |
3400 | ||
63f39bd1 YZ |
3401 | #ifdef IXGBE_FCOE |
3402 | /* adjust max frame to be able to do baby jumbo for FCoE */ | |
f34c5c82 | 3403 | if ((netdev->features & NETIF_F_FCOE_MTU) && |
63f39bd1 YZ |
3404 | (max_frame < IXGBE_FCOE_JUMBO_FRAME_SIZE)) |
3405 | max_frame = IXGBE_FCOE_JUMBO_FRAME_SIZE; | |
3406 | ||
3407 | #endif /* IXGBE_FCOE */ | |
021230d4 | 3408 | mhadd = IXGBE_READ_REG(hw, IXGBE_MHADD); |
9a799d71 AK |
3409 | if (max_frame != (mhadd >> IXGBE_MHADD_MFS_SHIFT)) { |
3410 | mhadd &= ~IXGBE_MHADD_MFS_MASK; | |
3411 | mhadd |= max_frame << IXGBE_MHADD_MFS_SHIFT; | |
3412 | ||
3413 | IXGBE_WRITE_REG(hw, IXGBE_MHADD, mhadd); | |
3414 | } | |
3415 | ||
3416 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
4a0b9ca0 | 3417 | j = adapter->tx_ring[i]->reg_idx; |
021230d4 | 3418 | txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(j)); |
ef021194 JB |
3419 | if (adapter->rx_itr_setting == 0) { |
3420 | /* cannot set wthresh when itr==0 */ | |
3421 | txdctl &= ~0x007F0000; | |
3422 | } else { | |
3423 | /* enable WTHRESH=8 descriptors, to encourage burst writeback */ | |
3424 | txdctl |= (8 << 16); | |
3425 | } | |
e8e26350 PW |
3426 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(j), txdctl); |
3427 | } | |
3428 | ||
3429 | if (hw->mac.type == ixgbe_mac_82599EB) { | |
3430 | /* DMATXCTL.EN must be set after all Tx queue config is done */ | |
3431 | dmatxctl = IXGBE_READ_REG(hw, IXGBE_DMATXCTL); | |
3432 | dmatxctl |= IXGBE_DMATXCTL_TE; | |
3433 | IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL, dmatxctl); | |
3434 | } | |
3435 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
4a0b9ca0 | 3436 | j = adapter->tx_ring[i]->reg_idx; |
e8e26350 | 3437 | txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(j)); |
9a799d71 | 3438 | txdctl |= IXGBE_TXDCTL_ENABLE; |
021230d4 | 3439 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(j), txdctl); |
1cdd1ec8 GR |
3440 | if (hw->mac.type == ixgbe_mac_82599EB) { |
3441 | int wait_loop = 10; | |
3442 | /* poll for Tx Enable ready */ | |
3443 | do { | |
3444 | msleep(1); | |
3445 | txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(j)); | |
3446 | } while (--wait_loop && | |
3447 | !(txdctl & IXGBE_TXDCTL_ENABLE)); | |
3448 | if (!wait_loop) | |
396e799c | 3449 | e_err(drv, "Could not enable Tx Queue %d\n", j); |
1cdd1ec8 | 3450 | } |
9a799d71 AK |
3451 | } |
3452 | ||
e8e26350 | 3453 | for (i = 0; i < num_rx_rings; i++) { |
4a0b9ca0 | 3454 | j = adapter->rx_ring[i]->reg_idx; |
021230d4 AV |
3455 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(j)); |
3456 | /* enable PTHRESH=32 descriptors (half the internal cache) | |
3457 | * and HTHRESH=0 descriptors (to minimize latency on fetch), | |
3458 | * this also removes a pesky rx_no_buffer_count increment */ | |
3459 | rxdctl |= 0x0020; | |
9a799d71 | 3460 | rxdctl |= IXGBE_RXDCTL_ENABLE; |
021230d4 | 3461 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(j), rxdctl); |
e8e26350 PW |
3462 | if (hw->mac.type == ixgbe_mac_82599EB) |
3463 | ixgbe_rx_desc_queue_enable(adapter, i); | |
9a799d71 AK |
3464 | } |
3465 | /* enable all receives */ | |
3466 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXCTRL); | |
e8e26350 PW |
3467 | if (hw->mac.type == ixgbe_mac_82598EB) |
3468 | rxdctl |= (IXGBE_RXCTRL_DMBYPS | IXGBE_RXCTRL_RXEN); | |
3469 | else | |
3470 | rxdctl |= IXGBE_RXCTRL_RXEN; | |
3471 | hw->mac.ops.enable_rx_dma(hw, rxdctl); | |
9a799d71 AK |
3472 | |
3473 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) | |
3474 | ixgbe_configure_msix(adapter); | |
3475 | else | |
3476 | ixgbe_configure_msi_and_legacy(adapter); | |
3477 | ||
61fac744 PW |
3478 | /* enable the optics */ |
3479 | if (hw->phy.multispeed_fiber) | |
3480 | hw->mac.ops.enable_tx_laser(hw); | |
3481 | ||
9a799d71 | 3482 | clear_bit(__IXGBE_DOWN, &adapter->state); |
021230d4 AV |
3483 | ixgbe_napi_enable_all(adapter); |
3484 | ||
3485 | /* clear any pending interrupts, may auto mask */ | |
3486 | IXGBE_READ_REG(hw, IXGBE_EICR); | |
3487 | ||
9a799d71 AK |
3488 | ixgbe_irq_enable(adapter); |
3489 | ||
bf069c97 DS |
3490 | /* |
3491 | * If this adapter has a fan, check to see if we had a failure | |
3492 | * before we enabled the interrupt. | |
3493 | */ | |
3494 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) { | |
3495 | u32 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); | |
3496 | if (esdp & IXGBE_ESDP_SDP1) | |
396e799c | 3497 | e_crit(drv, "Fan has stopped, replace the adapter\n"); |
bf069c97 DS |
3498 | } |
3499 | ||
e8e26350 PW |
3500 | /* |
3501 | * For hot-pluggable SFP+ devices, a new SFP+ module may have | |
19343de2 DS |
3502 | * arrived before interrupts were enabled but after probe. Such |
3503 | * devices wouldn't have their type identified yet. We need to | |
3504 | * kick off the SFP+ module setup first, then try to bring up link. | |
e8e26350 PW |
3505 | * If we're not hot-pluggable SFP+, we just need to configure link |
3506 | * and bring it up. | |
3507 | */ | |
19343de2 DS |
3508 | if (hw->phy.type == ixgbe_phy_unknown) { |
3509 | err = hw->phy.ops.identify(hw); | |
3510 | if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) { | |
5da43c1a DS |
3511 | /* |
3512 | * Take the device down and schedule the sfp tasklet | |
3513 | * which will unregister_netdev and log it. | |
3514 | */ | |
19343de2 | 3515 | ixgbe_down(adapter); |
5da43c1a | 3516 | schedule_work(&adapter->sfp_config_module_task); |
19343de2 DS |
3517 | return err; |
3518 | } | |
e8e26350 PW |
3519 | } |
3520 | ||
3521 | if (ixgbe_is_sfp(hw)) { | |
3522 | ixgbe_sfp_link_config(adapter); | |
3523 | } else { | |
3524 | err = ixgbe_non_sfp_link_config(hw); | |
3525 | if (err) | |
396e799c | 3526 | e_err(probe, "link_config FAILED %d\n", err); |
e8e26350 | 3527 | } |
0ecc061d | 3528 | |
c4cf55e5 PWJ |
3529 | for (i = 0; i < adapter->num_tx_queues; i++) |
3530 | set_bit(__IXGBE_FDIR_INIT_DONE, | |
4a0b9ca0 | 3531 | &(adapter->tx_ring[i]->reinit_state)); |
c4cf55e5 | 3532 | |
1da100bb PWJ |
3533 | /* enable transmits */ |
3534 | netif_tx_start_all_queues(netdev); | |
3535 | ||
9a799d71 AK |
3536 | /* bring the link up in the watchdog, this could race with our first |
3537 | * link up interrupt but shouldn't be a problem */ | |
cf8280ee JB |
3538 | adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; |
3539 | adapter->link_check_timeout = jiffies; | |
9a799d71 | 3540 | mod_timer(&adapter->watchdog_timer, jiffies); |
c9205697 GR |
3541 | |
3542 | /* Set PF Reset Done bit so PF/VF Mail Ops can work */ | |
3543 | ctrl_ext = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT); | |
3544 | ctrl_ext |= IXGBE_CTRL_EXT_PFRSTD; | |
3545 | IXGBE_WRITE_REG(hw, IXGBE_CTRL_EXT, ctrl_ext); | |
3546 | ||
9a799d71 AK |
3547 | return 0; |
3548 | } | |
3549 | ||
d4f80882 AV |
3550 | void ixgbe_reinit_locked(struct ixgbe_adapter *adapter) |
3551 | { | |
3552 | WARN_ON(in_interrupt()); | |
3553 | while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state)) | |
3554 | msleep(1); | |
3555 | ixgbe_down(adapter); | |
5809a1ae GR |
3556 | /* |
3557 | * If SR-IOV enabled then wait a bit before bringing the adapter | |
3558 | * back up to give the VFs time to respond to the reset. The | |
3559 | * two second wait is based upon the watchdog timer cycle in | |
3560 | * the VF driver. | |
3561 | */ | |
3562 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
3563 | msleep(2000); | |
d4f80882 AV |
3564 | ixgbe_up(adapter); |
3565 | clear_bit(__IXGBE_RESETTING, &adapter->state); | |
3566 | } | |
3567 | ||
9a799d71 AK |
3568 | int ixgbe_up(struct ixgbe_adapter *adapter) |
3569 | { | |
3570 | /* hardware has been reset, we need to reload some things */ | |
3571 | ixgbe_configure(adapter); | |
3572 | ||
3573 | return ixgbe_up_complete(adapter); | |
3574 | } | |
3575 | ||
3576 | void ixgbe_reset(struct ixgbe_adapter *adapter) | |
3577 | { | |
c44ade9e | 3578 | struct ixgbe_hw *hw = &adapter->hw; |
8ca783ab DS |
3579 | int err; |
3580 | ||
3581 | err = hw->mac.ops.init_hw(hw); | |
da4dd0f7 PWJ |
3582 | switch (err) { |
3583 | case 0: | |
3584 | case IXGBE_ERR_SFP_NOT_PRESENT: | |
3585 | break; | |
3586 | case IXGBE_ERR_MASTER_REQUESTS_PENDING: | |
849c4542 | 3587 | e_dev_err("master disable timed out\n"); |
da4dd0f7 | 3588 | break; |
794caeb2 PWJ |
3589 | case IXGBE_ERR_EEPROM_VERSION: |
3590 | /* We are running on a pre-production device, log a warning */ | |
849c4542 ET |
3591 | e_dev_warn("This device is a pre-production adapter/LOM. " |
3592 | "Please be aware there may be issuesassociated with " | |
3593 | "your hardware. If you are experiencing problems " | |
3594 | "please contact your Intel or hardware " | |
3595 | "representative who provided you with this " | |
3596 | "hardware.\n"); | |
794caeb2 | 3597 | break; |
da4dd0f7 | 3598 | default: |
849c4542 | 3599 | e_dev_err("Hardware Error: %d\n", err); |
da4dd0f7 | 3600 | } |
9a799d71 AK |
3601 | |
3602 | /* reprogram the RAR[0] in case user changed it. */ | |
1cdd1ec8 GR |
3603 | hw->mac.ops.set_rar(hw, 0, hw->mac.addr, adapter->num_vfs, |
3604 | IXGBE_RAH_AV); | |
9a799d71 AK |
3605 | } |
3606 | ||
9a799d71 AK |
3607 | /** |
3608 | * ixgbe_clean_rx_ring - Free Rx Buffers per Queue | |
3609 | * @adapter: board private structure | |
3610 | * @rx_ring: ring to free buffers from | |
3611 | **/ | |
3612 | static void ixgbe_clean_rx_ring(struct ixgbe_adapter *adapter, | |
b4617240 | 3613 | struct ixgbe_ring *rx_ring) |
9a799d71 AK |
3614 | { |
3615 | struct pci_dev *pdev = adapter->pdev; | |
3616 | unsigned long size; | |
3617 | unsigned int i; | |
3618 | ||
3619 | /* Free all the Rx ring sk_buffs */ | |
3620 | ||
3621 | for (i = 0; i < rx_ring->count; i++) { | |
3622 | struct ixgbe_rx_buffer *rx_buffer_info; | |
3623 | ||
3624 | rx_buffer_info = &rx_ring->rx_buffer_info[i]; | |
3625 | if (rx_buffer_info->dma) { | |
1b507730 | 3626 | dma_unmap_single(&pdev->dev, rx_buffer_info->dma, |
b4617240 | 3627 | rx_ring->rx_buf_len, |
1b507730 | 3628 | DMA_FROM_DEVICE); |
9a799d71 AK |
3629 | rx_buffer_info->dma = 0; |
3630 | } | |
3631 | if (rx_buffer_info->skb) { | |
f8212f97 | 3632 | struct sk_buff *skb = rx_buffer_info->skb; |
9a799d71 | 3633 | rx_buffer_info->skb = NULL; |
f8212f97 AD |
3634 | do { |
3635 | struct sk_buff *this = skb; | |
e8171aaa | 3636 | if (IXGBE_RSC_CB(this)->delay_unmap) { |
1b507730 NN |
3637 | dma_unmap_single(&pdev->dev, |
3638 | IXGBE_RSC_CB(this)->dma, | |
43634e82 | 3639 | rx_ring->rx_buf_len, |
1b507730 | 3640 | DMA_FROM_DEVICE); |
fd3686a8 | 3641 | IXGBE_RSC_CB(this)->dma = 0; |
e8171aaa | 3642 | IXGBE_RSC_CB(skb)->delay_unmap = false; |
fd3686a8 | 3643 | } |
f8212f97 AD |
3644 | skb = skb->prev; |
3645 | dev_kfree_skb(this); | |
3646 | } while (skb); | |
9a799d71 AK |
3647 | } |
3648 | if (!rx_buffer_info->page) | |
3649 | continue; | |
4f57ca6e | 3650 | if (rx_buffer_info->page_dma) { |
1b507730 NN |
3651 | dma_unmap_page(&pdev->dev, rx_buffer_info->page_dma, |
3652 | PAGE_SIZE / 2, DMA_FROM_DEVICE); | |
4f57ca6e JB |
3653 | rx_buffer_info->page_dma = 0; |
3654 | } | |
9a799d71 AK |
3655 | put_page(rx_buffer_info->page); |
3656 | rx_buffer_info->page = NULL; | |
762f4c57 | 3657 | rx_buffer_info->page_offset = 0; |
9a799d71 AK |
3658 | } |
3659 | ||
3660 | size = sizeof(struct ixgbe_rx_buffer) * rx_ring->count; | |
3661 | memset(rx_ring->rx_buffer_info, 0, size); | |
3662 | ||
3663 | /* Zero out the descriptor ring */ | |
3664 | memset(rx_ring->desc, 0, rx_ring->size); | |
3665 | ||
3666 | rx_ring->next_to_clean = 0; | |
3667 | rx_ring->next_to_use = 0; | |
3668 | ||
9891ca7c JB |
3669 | if (rx_ring->head) |
3670 | writel(0, adapter->hw.hw_addr + rx_ring->head); | |
3671 | if (rx_ring->tail) | |
3672 | writel(0, adapter->hw.hw_addr + rx_ring->tail); | |
9a799d71 AK |
3673 | } |
3674 | ||
3675 | /** | |
3676 | * ixgbe_clean_tx_ring - Free Tx Buffers | |
3677 | * @adapter: board private structure | |
3678 | * @tx_ring: ring to be cleaned | |
3679 | **/ | |
3680 | static void ixgbe_clean_tx_ring(struct ixgbe_adapter *adapter, | |
b4617240 | 3681 | struct ixgbe_ring *tx_ring) |
9a799d71 AK |
3682 | { |
3683 | struct ixgbe_tx_buffer *tx_buffer_info; | |
3684 | unsigned long size; | |
3685 | unsigned int i; | |
3686 | ||
3687 | /* Free all the Tx ring sk_buffs */ | |
3688 | ||
3689 | for (i = 0; i < tx_ring->count; i++) { | |
3690 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; | |
3691 | ixgbe_unmap_and_free_tx_resource(adapter, tx_buffer_info); | |
3692 | } | |
3693 | ||
3694 | size = sizeof(struct ixgbe_tx_buffer) * tx_ring->count; | |
3695 | memset(tx_ring->tx_buffer_info, 0, size); | |
3696 | ||
3697 | /* Zero out the descriptor ring */ | |
3698 | memset(tx_ring->desc, 0, tx_ring->size); | |
3699 | ||
3700 | tx_ring->next_to_use = 0; | |
3701 | tx_ring->next_to_clean = 0; | |
3702 | ||
9891ca7c JB |
3703 | if (tx_ring->head) |
3704 | writel(0, adapter->hw.hw_addr + tx_ring->head); | |
3705 | if (tx_ring->tail) | |
3706 | writel(0, adapter->hw.hw_addr + tx_ring->tail); | |
9a799d71 AK |
3707 | } |
3708 | ||
3709 | /** | |
021230d4 | 3710 | * ixgbe_clean_all_rx_rings - Free Rx Buffers for all queues |
9a799d71 AK |
3711 | * @adapter: board private structure |
3712 | **/ | |
021230d4 | 3713 | static void ixgbe_clean_all_rx_rings(struct ixgbe_adapter *adapter) |
9a799d71 AK |
3714 | { |
3715 | int i; | |
3716 | ||
021230d4 | 3717 | for (i = 0; i < adapter->num_rx_queues; i++) |
4a0b9ca0 | 3718 | ixgbe_clean_rx_ring(adapter, adapter->rx_ring[i]); |
9a799d71 AK |
3719 | } |
3720 | ||
3721 | /** | |
021230d4 | 3722 | * ixgbe_clean_all_tx_rings - Free Tx Buffers for all queues |
9a799d71 AK |
3723 | * @adapter: board private structure |
3724 | **/ | |
021230d4 | 3725 | static void ixgbe_clean_all_tx_rings(struct ixgbe_adapter *adapter) |
9a799d71 AK |
3726 | { |
3727 | int i; | |
3728 | ||
021230d4 | 3729 | for (i = 0; i < adapter->num_tx_queues; i++) |
4a0b9ca0 | 3730 | ixgbe_clean_tx_ring(adapter, adapter->tx_ring[i]); |
9a799d71 AK |
3731 | } |
3732 | ||
3733 | void ixgbe_down(struct ixgbe_adapter *adapter) | |
3734 | { | |
3735 | struct net_device *netdev = adapter->netdev; | |
7f821875 | 3736 | struct ixgbe_hw *hw = &adapter->hw; |
9a799d71 | 3737 | u32 rxctrl; |
7f821875 JB |
3738 | u32 txdctl; |
3739 | int i, j; | |
9a799d71 AK |
3740 | |
3741 | /* signal that we are down to the interrupt handler */ | |
3742 | set_bit(__IXGBE_DOWN, &adapter->state); | |
3743 | ||
767081ad GR |
3744 | /* disable receive for all VFs and wait one second */ |
3745 | if (adapter->num_vfs) { | |
767081ad GR |
3746 | /* ping all the active vfs to let them know we are going down */ |
3747 | ixgbe_ping_all_vfs(adapter); | |
581d1aa7 | 3748 | |
767081ad GR |
3749 | /* Disable all VFTE/VFRE TX/RX */ |
3750 | ixgbe_disable_tx_rx(adapter); | |
581d1aa7 GR |
3751 | |
3752 | /* Mark all the VFs as inactive */ | |
3753 | for (i = 0 ; i < adapter->num_vfs; i++) | |
3754 | adapter->vfinfo[i].clear_to_send = 0; | |
767081ad GR |
3755 | } |
3756 | ||
9a799d71 | 3757 | /* disable receives */ |
7f821875 JB |
3758 | rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL); |
3759 | IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl & ~IXGBE_RXCTRL_RXEN); | |
9a799d71 | 3760 | |
7f821875 | 3761 | IXGBE_WRITE_FLUSH(hw); |
9a799d71 AK |
3762 | msleep(10); |
3763 | ||
7f821875 JB |
3764 | netif_tx_stop_all_queues(netdev); |
3765 | ||
0a1f87cb DS |
3766 | clear_bit(__IXGBE_SFP_MODULE_NOT_FOUND, &adapter->state); |
3767 | del_timer_sync(&adapter->sfp_timer); | |
9a799d71 | 3768 | del_timer_sync(&adapter->watchdog_timer); |
cf8280ee | 3769 | cancel_work_sync(&adapter->watchdog_task); |
9a799d71 | 3770 | |
c0dfb90e JF |
3771 | netif_carrier_off(netdev); |
3772 | netif_tx_disable(netdev); | |
3773 | ||
3774 | ixgbe_irq_disable(adapter); | |
3775 | ||
3776 | ixgbe_napi_disable_all(adapter); | |
3777 | ||
c4cf55e5 PWJ |
3778 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE || |
3779 | adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) | |
3780 | cancel_work_sync(&adapter->fdir_reinit_task); | |
3781 | ||
119fc60a MC |
3782 | if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) |
3783 | cancel_work_sync(&adapter->check_overtemp_task); | |
3784 | ||
7f821875 JB |
3785 | /* disable transmits in the hardware now that interrupts are off */ |
3786 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
4a0b9ca0 | 3787 | j = adapter->tx_ring[i]->reg_idx; |
7f821875 JB |
3788 | txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(j)); |
3789 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(j), | |
3790 | (txdctl & ~IXGBE_TXDCTL_ENABLE)); | |
3791 | } | |
88512539 PW |
3792 | /* Disable the Tx DMA engine on 82599 */ |
3793 | if (hw->mac.type == ixgbe_mac_82599EB) | |
3794 | IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL, | |
3795 | (IXGBE_READ_REG(hw, IXGBE_DMATXCTL) & | |
3796 | ~IXGBE_DMATXCTL_TE)); | |
7f821875 | 3797 | |
9f756f01 JF |
3798 | /* power down the optics */ |
3799 | if (hw->phy.multispeed_fiber) | |
3800 | hw->mac.ops.disable_tx_laser(hw); | |
3801 | ||
9a713e7c PW |
3802 | /* clear n-tuple filters that are cached */ |
3803 | ethtool_ntuple_flush(netdev); | |
3804 | ||
6f4a0e45 PL |
3805 | if (!pci_channel_offline(adapter->pdev)) |
3806 | ixgbe_reset(adapter); | |
9a799d71 AK |
3807 | ixgbe_clean_all_tx_rings(adapter); |
3808 | ixgbe_clean_all_rx_rings(adapter); | |
3809 | ||
5dd2d332 | 3810 | #ifdef CONFIG_IXGBE_DCA |
96b0e0f6 | 3811 | /* since we reset the hardware DCA settings were cleared */ |
e35ec126 | 3812 | ixgbe_setup_dca(adapter); |
96b0e0f6 | 3813 | #endif |
9a799d71 AK |
3814 | } |
3815 | ||
9a799d71 | 3816 | /** |
021230d4 AV |
3817 | * ixgbe_poll - NAPI Rx polling callback |
3818 | * @napi: structure for representing this polling device | |
3819 | * @budget: how many packets driver is allowed to clean | |
3820 | * | |
3821 | * This function is used for legacy and MSI, NAPI mode | |
9a799d71 | 3822 | **/ |
021230d4 | 3823 | static int ixgbe_poll(struct napi_struct *napi, int budget) |
9a799d71 | 3824 | { |
9a1a69ad JB |
3825 | struct ixgbe_q_vector *q_vector = |
3826 | container_of(napi, struct ixgbe_q_vector, napi); | |
021230d4 | 3827 | struct ixgbe_adapter *adapter = q_vector->adapter; |
9a1a69ad | 3828 | int tx_clean_complete, work_done = 0; |
9a799d71 | 3829 | |
5dd2d332 | 3830 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd | 3831 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) { |
4a0b9ca0 PW |
3832 | ixgbe_update_tx_dca(adapter, adapter->tx_ring[0]); |
3833 | ixgbe_update_rx_dca(adapter, adapter->rx_ring[0]); | |
bd0362dd JC |
3834 | } |
3835 | #endif | |
3836 | ||
4a0b9ca0 PW |
3837 | tx_clean_complete = ixgbe_clean_tx_irq(q_vector, adapter->tx_ring[0]); |
3838 | ixgbe_clean_rx_irq(q_vector, adapter->rx_ring[0], &work_done, budget); | |
9a799d71 | 3839 | |
9a1a69ad | 3840 | if (!tx_clean_complete) |
d2c7ddd6 DM |
3841 | work_done = budget; |
3842 | ||
53e52c72 DM |
3843 | /* If budget not fully consumed, exit the polling mode */ |
3844 | if (work_done < budget) { | |
288379f0 | 3845 | napi_complete(napi); |
f7554a2b | 3846 | if (adapter->rx_itr_setting & 1) |
f494e8fa | 3847 | ixgbe_set_itr(adapter); |
d4f80882 | 3848 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
835462fc | 3849 | ixgbe_irq_enable_queues(adapter, IXGBE_EIMS_RTX_QUEUE); |
9a799d71 | 3850 | } |
9a799d71 AK |
3851 | return work_done; |
3852 | } | |
3853 | ||
3854 | /** | |
3855 | * ixgbe_tx_timeout - Respond to a Tx Hang | |
3856 | * @netdev: network interface device structure | |
3857 | **/ | |
3858 | static void ixgbe_tx_timeout(struct net_device *netdev) | |
3859 | { | |
3860 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
3861 | ||
3862 | /* Do the reset outside of interrupt context */ | |
3863 | schedule_work(&adapter->reset_task); | |
3864 | } | |
3865 | ||
3866 | static void ixgbe_reset_task(struct work_struct *work) | |
3867 | { | |
3868 | struct ixgbe_adapter *adapter; | |
3869 | adapter = container_of(work, struct ixgbe_adapter, reset_task); | |
3870 | ||
2f90b865 AD |
3871 | /* If we're already down or resetting, just bail */ |
3872 | if (test_bit(__IXGBE_DOWN, &adapter->state) || | |
3873 | test_bit(__IXGBE_RESETTING, &adapter->state)) | |
3874 | return; | |
3875 | ||
9a799d71 AK |
3876 | adapter->tx_timeout_count++; |
3877 | ||
dcd79aeb TI |
3878 | ixgbe_dump(adapter); |
3879 | netdev_err(adapter->netdev, "Reset adapter\n"); | |
d4f80882 | 3880 | ixgbe_reinit_locked(adapter); |
9a799d71 AK |
3881 | } |
3882 | ||
bc97114d PWJ |
3883 | #ifdef CONFIG_IXGBE_DCB |
3884 | static inline bool ixgbe_set_dcb_queues(struct ixgbe_adapter *adapter) | |
b9804972 | 3885 | { |
bc97114d | 3886 | bool ret = false; |
0cefafad | 3887 | struct ixgbe_ring_feature *f = &adapter->ring_feature[RING_F_DCB]; |
b9804972 | 3888 | |
0cefafad JB |
3889 | if (!(adapter->flags & IXGBE_FLAG_DCB_ENABLED)) |
3890 | return ret; | |
3891 | ||
3892 | f->mask = 0x7 << 3; | |
3893 | adapter->num_rx_queues = f->indices; | |
3894 | adapter->num_tx_queues = f->indices; | |
3895 | ret = true; | |
2f90b865 | 3896 | |
bc97114d PWJ |
3897 | return ret; |
3898 | } | |
3899 | #endif | |
3900 | ||
4df10466 JB |
3901 | /** |
3902 | * ixgbe_set_rss_queues: Allocate queues for RSS | |
3903 | * @adapter: board private structure to initialize | |
3904 | * | |
3905 | * This is our "base" multiqueue mode. RSS (Receive Side Scaling) will try | |
3906 | * to allocate one Rx queue per CPU, and if available, one Tx queue per CPU. | |
3907 | * | |
3908 | **/ | |
bc97114d PWJ |
3909 | static inline bool ixgbe_set_rss_queues(struct ixgbe_adapter *adapter) |
3910 | { | |
3911 | bool ret = false; | |
0cefafad | 3912 | struct ixgbe_ring_feature *f = &adapter->ring_feature[RING_F_RSS]; |
bc97114d PWJ |
3913 | |
3914 | if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) { | |
0cefafad JB |
3915 | f->mask = 0xF; |
3916 | adapter->num_rx_queues = f->indices; | |
3917 | adapter->num_tx_queues = f->indices; | |
bc97114d PWJ |
3918 | ret = true; |
3919 | } else { | |
bc97114d | 3920 | ret = false; |
b9804972 JB |
3921 | } |
3922 | ||
bc97114d PWJ |
3923 | return ret; |
3924 | } | |
3925 | ||
c4cf55e5 PWJ |
3926 | /** |
3927 | * ixgbe_set_fdir_queues: Allocate queues for Flow Director | |
3928 | * @adapter: board private structure to initialize | |
3929 | * | |
3930 | * Flow Director is an advanced Rx filter, attempting to get Rx flows back | |
3931 | * to the original CPU that initiated the Tx session. This runs in addition | |
3932 | * to RSS, so if a packet doesn't match an FDIR filter, we can still spread the | |
3933 | * Rx load across CPUs using RSS. | |
3934 | * | |
3935 | **/ | |
3936 | static bool inline ixgbe_set_fdir_queues(struct ixgbe_adapter *adapter) | |
3937 | { | |
3938 | bool ret = false; | |
3939 | struct ixgbe_ring_feature *f_fdir = &adapter->ring_feature[RING_F_FDIR]; | |
3940 | ||
3941 | f_fdir->indices = min((int)num_online_cpus(), f_fdir->indices); | |
3942 | f_fdir->mask = 0; | |
3943 | ||
3944 | /* Flow Director must have RSS enabled */ | |
3945 | if (adapter->flags & IXGBE_FLAG_RSS_ENABLED && | |
3946 | ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE || | |
3947 | (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)))) { | |
3948 | adapter->num_tx_queues = f_fdir->indices; | |
3949 | adapter->num_rx_queues = f_fdir->indices; | |
3950 | ret = true; | |
3951 | } else { | |
3952 | adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE; | |
3953 | adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE; | |
3954 | } | |
3955 | return ret; | |
3956 | } | |
3957 | ||
0331a832 YZ |
3958 | #ifdef IXGBE_FCOE |
3959 | /** | |
3960 | * ixgbe_set_fcoe_queues: Allocate queues for Fiber Channel over Ethernet (FCoE) | |
3961 | * @adapter: board private structure to initialize | |
3962 | * | |
3963 | * FCoE RX FCRETA can use up to 8 rx queues for up to 8 different exchanges. | |
3964 | * The ring feature mask is not used as a mask for FCoE, as it can take any 8 | |
3965 | * rx queues out of the max number of rx queues, instead, it is used as the | |
3966 | * index of the first rx queue used by FCoE. | |
3967 | * | |
3968 | **/ | |
3969 | static inline bool ixgbe_set_fcoe_queues(struct ixgbe_adapter *adapter) | |
3970 | { | |
3971 | bool ret = false; | |
3972 | struct ixgbe_ring_feature *f = &adapter->ring_feature[RING_F_FCOE]; | |
3973 | ||
3974 | f->indices = min((int)num_online_cpus(), f->indices); | |
3975 | if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) { | |
8de8b2e6 YZ |
3976 | adapter->num_rx_queues = 1; |
3977 | adapter->num_tx_queues = 1; | |
0331a832 YZ |
3978 | #ifdef CONFIG_IXGBE_DCB |
3979 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { | |
396e799c | 3980 | e_info(probe, "FCoE enabled with DCB\n"); |
0331a832 YZ |
3981 | ixgbe_set_dcb_queues(adapter); |
3982 | } | |
3983 | #endif | |
3984 | if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) { | |
396e799c | 3985 | e_info(probe, "FCoE enabled with RSS\n"); |
8faa2a78 YZ |
3986 | if ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) || |
3987 | (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)) | |
3988 | ixgbe_set_fdir_queues(adapter); | |
3989 | else | |
3990 | ixgbe_set_rss_queues(adapter); | |
0331a832 YZ |
3991 | } |
3992 | /* adding FCoE rx rings to the end */ | |
3993 | f->mask = adapter->num_rx_queues; | |
3994 | adapter->num_rx_queues += f->indices; | |
8de8b2e6 | 3995 | adapter->num_tx_queues += f->indices; |
0331a832 YZ |
3996 | |
3997 | ret = true; | |
3998 | } | |
3999 | ||
4000 | return ret; | |
4001 | } | |
4002 | ||
4003 | #endif /* IXGBE_FCOE */ | |
1cdd1ec8 GR |
4004 | /** |
4005 | * ixgbe_set_sriov_queues: Allocate queues for IOV use | |
4006 | * @adapter: board private structure to initialize | |
4007 | * | |
4008 | * IOV doesn't actually use anything, so just NAK the | |
4009 | * request for now and let the other queue routines | |
4010 | * figure out what to do. | |
4011 | */ | |
4012 | static inline bool ixgbe_set_sriov_queues(struct ixgbe_adapter *adapter) | |
4013 | { | |
4014 | return false; | |
4015 | } | |
4016 | ||
4df10466 JB |
4017 | /* |
4018 | * ixgbe_set_num_queues: Allocate queues for device, feature dependant | |
4019 | * @adapter: board private structure to initialize | |
4020 | * | |
4021 | * This is the top level queue allocation routine. The order here is very | |
4022 | * important, starting with the "most" number of features turned on at once, | |
4023 | * and ending with the smallest set of features. This way large combinations | |
4024 | * can be allocated if they're turned on, and smaller combinations are the | |
4025 | * fallthrough conditions. | |
4026 | * | |
4027 | **/ | |
bc97114d PWJ |
4028 | static void ixgbe_set_num_queues(struct ixgbe_adapter *adapter) |
4029 | { | |
1cdd1ec8 GR |
4030 | /* Start with base case */ |
4031 | adapter->num_rx_queues = 1; | |
4032 | adapter->num_tx_queues = 1; | |
4033 | adapter->num_rx_pools = adapter->num_rx_queues; | |
4034 | adapter->num_rx_queues_per_pool = 1; | |
4035 | ||
4036 | if (ixgbe_set_sriov_queues(adapter)) | |
4037 | return; | |
4038 | ||
0331a832 YZ |
4039 | #ifdef IXGBE_FCOE |
4040 | if (ixgbe_set_fcoe_queues(adapter)) | |
4041 | goto done; | |
4042 | ||
4043 | #endif /* IXGBE_FCOE */ | |
bc97114d PWJ |
4044 | #ifdef CONFIG_IXGBE_DCB |
4045 | if (ixgbe_set_dcb_queues(adapter)) | |
af22ab1b | 4046 | goto done; |
bc97114d PWJ |
4047 | |
4048 | #endif | |
c4cf55e5 PWJ |
4049 | if (ixgbe_set_fdir_queues(adapter)) |
4050 | goto done; | |
4051 | ||
bc97114d | 4052 | if (ixgbe_set_rss_queues(adapter)) |
af22ab1b WF |
4053 | goto done; |
4054 | ||
4055 | /* fallback to base case */ | |
4056 | adapter->num_rx_queues = 1; | |
4057 | adapter->num_tx_queues = 1; | |
4058 | ||
4059 | done: | |
4060 | /* Notify the stack of the (possibly) reduced Tx Queue count. */ | |
f0796d5c | 4061 | netif_set_real_num_tx_queues(adapter->netdev, adapter->num_tx_queues); |
b9804972 JB |
4062 | } |
4063 | ||
021230d4 | 4064 | static void ixgbe_acquire_msix_vectors(struct ixgbe_adapter *adapter, |
b4617240 | 4065 | int vectors) |
021230d4 AV |
4066 | { |
4067 | int err, vector_threshold; | |
4068 | ||
4069 | /* We'll want at least 3 (vector_threshold): | |
4070 | * 1) TxQ[0] Cleanup | |
4071 | * 2) RxQ[0] Cleanup | |
4072 | * 3) Other (Link Status Change, etc.) | |
4073 | * 4) TCP Timer (optional) | |
4074 | */ | |
4075 | vector_threshold = MIN_MSIX_COUNT; | |
4076 | ||
4077 | /* The more we get, the more we will assign to Tx/Rx Cleanup | |
4078 | * for the separate queues...where Rx Cleanup >= Tx Cleanup. | |
4079 | * Right now, we simply care about how many we'll get; we'll | |
4080 | * set them up later while requesting irq's. | |
4081 | */ | |
4082 | while (vectors >= vector_threshold) { | |
4083 | err = pci_enable_msix(adapter->pdev, adapter->msix_entries, | |
b4617240 | 4084 | vectors); |
021230d4 AV |
4085 | if (!err) /* Success in acquiring all requested vectors. */ |
4086 | break; | |
4087 | else if (err < 0) | |
4088 | vectors = 0; /* Nasty failure, quit now */ | |
4089 | else /* err == number of vectors we should try again with */ | |
4090 | vectors = err; | |
4091 | } | |
4092 | ||
4093 | if (vectors < vector_threshold) { | |
4094 | /* Can't allocate enough MSI-X interrupts? Oh well. | |
4095 | * This just means we'll go with either a single MSI | |
4096 | * vector or fall back to legacy interrupts. | |
4097 | */ | |
849c4542 ET |
4098 | netif_printk(adapter, hw, KERN_DEBUG, adapter->netdev, |
4099 | "Unable to allocate MSI-X interrupts\n"); | |
021230d4 AV |
4100 | adapter->flags &= ~IXGBE_FLAG_MSIX_ENABLED; |
4101 | kfree(adapter->msix_entries); | |
4102 | adapter->msix_entries = NULL; | |
021230d4 AV |
4103 | } else { |
4104 | adapter->flags |= IXGBE_FLAG_MSIX_ENABLED; /* Woot! */ | |
eb7f139c PWJ |
4105 | /* |
4106 | * Adjust for only the vectors we'll use, which is minimum | |
4107 | * of max_msix_q_vectors + NON_Q_VECTORS, or the number of | |
4108 | * vectors we were allocated. | |
4109 | */ | |
4110 | adapter->num_msix_vectors = min(vectors, | |
4111 | adapter->max_msix_q_vectors + NON_Q_VECTORS); | |
021230d4 AV |
4112 | } |
4113 | } | |
4114 | ||
021230d4 | 4115 | /** |
bc97114d | 4116 | * ixgbe_cache_ring_rss - Descriptor ring to register mapping for RSS |
021230d4 AV |
4117 | * @adapter: board private structure to initialize |
4118 | * | |
bc97114d PWJ |
4119 | * Cache the descriptor ring offsets for RSS to the assigned rings. |
4120 | * | |
021230d4 | 4121 | **/ |
bc97114d | 4122 | static inline bool ixgbe_cache_ring_rss(struct ixgbe_adapter *adapter) |
021230d4 | 4123 | { |
bc97114d PWJ |
4124 | int i; |
4125 | bool ret = false; | |
4126 | ||
4127 | if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) { | |
4128 | for (i = 0; i < adapter->num_rx_queues; i++) | |
4a0b9ca0 | 4129 | adapter->rx_ring[i]->reg_idx = i; |
bc97114d | 4130 | for (i = 0; i < adapter->num_tx_queues; i++) |
4a0b9ca0 | 4131 | adapter->tx_ring[i]->reg_idx = i; |
bc97114d PWJ |
4132 | ret = true; |
4133 | } else { | |
4134 | ret = false; | |
4135 | } | |
4136 | ||
4137 | return ret; | |
4138 | } | |
4139 | ||
4140 | #ifdef CONFIG_IXGBE_DCB | |
4141 | /** | |
4142 | * ixgbe_cache_ring_dcb - Descriptor ring to register mapping for DCB | |
4143 | * @adapter: board private structure to initialize | |
4144 | * | |
4145 | * Cache the descriptor ring offsets for DCB to the assigned rings. | |
4146 | * | |
4147 | **/ | |
4148 | static inline bool ixgbe_cache_ring_dcb(struct ixgbe_adapter *adapter) | |
4149 | { | |
4150 | int i; | |
4151 | bool ret = false; | |
4152 | int dcb_i = adapter->ring_feature[RING_F_DCB].indices; | |
4153 | ||
4154 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { | |
4155 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { | |
2f90b865 AD |
4156 | /* the number of queues is assumed to be symmetric */ |
4157 | for (i = 0; i < dcb_i; i++) { | |
4a0b9ca0 PW |
4158 | adapter->rx_ring[i]->reg_idx = i << 3; |
4159 | adapter->tx_ring[i]->reg_idx = i << 2; | |
2f90b865 | 4160 | } |
bc97114d | 4161 | ret = true; |
e8e26350 | 4162 | } else if (adapter->hw.mac.type == ixgbe_mac_82599EB) { |
f92ef202 PW |
4163 | if (dcb_i == 8) { |
4164 | /* | |
4165 | * Tx TC0 starts at: descriptor queue 0 | |
4166 | * Tx TC1 starts at: descriptor queue 32 | |
4167 | * Tx TC2 starts at: descriptor queue 64 | |
4168 | * Tx TC3 starts at: descriptor queue 80 | |
4169 | * Tx TC4 starts at: descriptor queue 96 | |
4170 | * Tx TC5 starts at: descriptor queue 104 | |
4171 | * Tx TC6 starts at: descriptor queue 112 | |
4172 | * Tx TC7 starts at: descriptor queue 120 | |
4173 | * | |
4174 | * Rx TC0-TC7 are offset by 16 queues each | |
4175 | */ | |
4176 | for (i = 0; i < 3; i++) { | |
4a0b9ca0 PW |
4177 | adapter->tx_ring[i]->reg_idx = i << 5; |
4178 | adapter->rx_ring[i]->reg_idx = i << 4; | |
f92ef202 PW |
4179 | } |
4180 | for ( ; i < 5; i++) { | |
4a0b9ca0 | 4181 | adapter->tx_ring[i]->reg_idx = |
f92ef202 | 4182 | ((i + 2) << 4); |
4a0b9ca0 | 4183 | adapter->rx_ring[i]->reg_idx = i << 4; |
f92ef202 PW |
4184 | } |
4185 | for ( ; i < dcb_i; i++) { | |
4a0b9ca0 | 4186 | adapter->tx_ring[i]->reg_idx = |
f92ef202 | 4187 | ((i + 8) << 3); |
4a0b9ca0 | 4188 | adapter->rx_ring[i]->reg_idx = i << 4; |
f92ef202 PW |
4189 | } |
4190 | ||
4191 | ret = true; | |
4192 | } else if (dcb_i == 4) { | |
4193 | /* | |
4194 | * Tx TC0 starts at: descriptor queue 0 | |
4195 | * Tx TC1 starts at: descriptor queue 64 | |
4196 | * Tx TC2 starts at: descriptor queue 96 | |
4197 | * Tx TC3 starts at: descriptor queue 112 | |
4198 | * | |
4199 | * Rx TC0-TC3 are offset by 32 queues each | |
4200 | */ | |
4a0b9ca0 PW |
4201 | adapter->tx_ring[0]->reg_idx = 0; |
4202 | adapter->tx_ring[1]->reg_idx = 64; | |
4203 | adapter->tx_ring[2]->reg_idx = 96; | |
4204 | adapter->tx_ring[3]->reg_idx = 112; | |
f92ef202 | 4205 | for (i = 0 ; i < dcb_i; i++) |
4a0b9ca0 | 4206 | adapter->rx_ring[i]->reg_idx = i << 5; |
f92ef202 PW |
4207 | |
4208 | ret = true; | |
4209 | } else { | |
4210 | ret = false; | |
e8e26350 | 4211 | } |
bc97114d PWJ |
4212 | } else { |
4213 | ret = false; | |
021230d4 | 4214 | } |
bc97114d PWJ |
4215 | } else { |
4216 | ret = false; | |
021230d4 | 4217 | } |
bc97114d PWJ |
4218 | |
4219 | return ret; | |
4220 | } | |
4221 | #endif | |
4222 | ||
c4cf55e5 PWJ |
4223 | /** |
4224 | * ixgbe_cache_ring_fdir - Descriptor ring to register mapping for Flow Director | |
4225 | * @adapter: board private structure to initialize | |
4226 | * | |
4227 | * Cache the descriptor ring offsets for Flow Director to the assigned rings. | |
4228 | * | |
4229 | **/ | |
4230 | static bool inline ixgbe_cache_ring_fdir(struct ixgbe_adapter *adapter) | |
4231 | { | |
4232 | int i; | |
4233 | bool ret = false; | |
4234 | ||
4235 | if (adapter->flags & IXGBE_FLAG_RSS_ENABLED && | |
4236 | ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) || | |
4237 | (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE))) { | |
4238 | for (i = 0; i < adapter->num_rx_queues; i++) | |
4a0b9ca0 | 4239 | adapter->rx_ring[i]->reg_idx = i; |
c4cf55e5 | 4240 | for (i = 0; i < adapter->num_tx_queues; i++) |
4a0b9ca0 | 4241 | adapter->tx_ring[i]->reg_idx = i; |
c4cf55e5 PWJ |
4242 | ret = true; |
4243 | } | |
4244 | ||
4245 | return ret; | |
4246 | } | |
4247 | ||
0331a832 YZ |
4248 | #ifdef IXGBE_FCOE |
4249 | /** | |
4250 | * ixgbe_cache_ring_fcoe - Descriptor ring to register mapping for the FCoE | |
4251 | * @adapter: board private structure to initialize | |
4252 | * | |
4253 | * Cache the descriptor ring offsets for FCoE mode to the assigned rings. | |
4254 | * | |
4255 | */ | |
4256 | static inline bool ixgbe_cache_ring_fcoe(struct ixgbe_adapter *adapter) | |
4257 | { | |
8de8b2e6 | 4258 | int i, fcoe_rx_i = 0, fcoe_tx_i = 0; |
0331a832 YZ |
4259 | bool ret = false; |
4260 | struct ixgbe_ring_feature *f = &adapter->ring_feature[RING_F_FCOE]; | |
4261 | ||
4262 | if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) { | |
4263 | #ifdef CONFIG_IXGBE_DCB | |
4264 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { | |
8de8b2e6 YZ |
4265 | struct ixgbe_fcoe *fcoe = &adapter->fcoe; |
4266 | ||
0331a832 | 4267 | ixgbe_cache_ring_dcb(adapter); |
8de8b2e6 | 4268 | /* find out queues in TC for FCoE */ |
4a0b9ca0 PW |
4269 | fcoe_rx_i = adapter->rx_ring[fcoe->tc]->reg_idx + 1; |
4270 | fcoe_tx_i = adapter->tx_ring[fcoe->tc]->reg_idx + 1; | |
8de8b2e6 YZ |
4271 | /* |
4272 | * In 82599, the number of Tx queues for each traffic | |
4273 | * class for both 8-TC and 4-TC modes are: | |
4274 | * TCs : TC0 TC1 TC2 TC3 TC4 TC5 TC6 TC7 | |
4275 | * 8 TCs: 32 32 16 16 8 8 8 8 | |
4276 | * 4 TCs: 64 64 32 32 | |
4277 | * We have max 8 queues for FCoE, where 8 the is | |
4278 | * FCoE redirection table size. If TC for FCoE is | |
4279 | * less than or equal to TC3, we have enough queues | |
4280 | * to add max of 8 queues for FCoE, so we start FCoE | |
4281 | * tx descriptor from the next one, i.e., reg_idx + 1. | |
4282 | * If TC for FCoE is above TC3, implying 8 TC mode, | |
4283 | * and we need 8 for FCoE, we have to take all queues | |
4284 | * in that traffic class for FCoE. | |
4285 | */ | |
4286 | if ((f->indices == IXGBE_FCRETA_SIZE) && (fcoe->tc > 3)) | |
4287 | fcoe_tx_i--; | |
0331a832 YZ |
4288 | } |
4289 | #endif /* CONFIG_IXGBE_DCB */ | |
4290 | if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) { | |
8faa2a78 YZ |
4291 | if ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) || |
4292 | (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)) | |
4293 | ixgbe_cache_ring_fdir(adapter); | |
4294 | else | |
4295 | ixgbe_cache_ring_rss(adapter); | |
4296 | ||
8de8b2e6 YZ |
4297 | fcoe_rx_i = f->mask; |
4298 | fcoe_tx_i = f->mask; | |
4299 | } | |
4300 | for (i = 0; i < f->indices; i++, fcoe_rx_i++, fcoe_tx_i++) { | |
4a0b9ca0 PW |
4301 | adapter->rx_ring[f->mask + i]->reg_idx = fcoe_rx_i; |
4302 | adapter->tx_ring[f->mask + i]->reg_idx = fcoe_tx_i; | |
0331a832 | 4303 | } |
0331a832 YZ |
4304 | ret = true; |
4305 | } | |
4306 | return ret; | |
4307 | } | |
4308 | ||
4309 | #endif /* IXGBE_FCOE */ | |
1cdd1ec8 GR |
4310 | /** |
4311 | * ixgbe_cache_ring_sriov - Descriptor ring to register mapping for sriov | |
4312 | * @adapter: board private structure to initialize | |
4313 | * | |
4314 | * SR-IOV doesn't use any descriptor rings but changes the default if | |
4315 | * no other mapping is used. | |
4316 | * | |
4317 | */ | |
4318 | static inline bool ixgbe_cache_ring_sriov(struct ixgbe_adapter *adapter) | |
4319 | { | |
4a0b9ca0 PW |
4320 | adapter->rx_ring[0]->reg_idx = adapter->num_vfs * 2; |
4321 | adapter->tx_ring[0]->reg_idx = adapter->num_vfs * 2; | |
1cdd1ec8 GR |
4322 | if (adapter->num_vfs) |
4323 | return true; | |
4324 | else | |
4325 | return false; | |
4326 | } | |
4327 | ||
bc97114d PWJ |
4328 | /** |
4329 | * ixgbe_cache_ring_register - Descriptor ring to register mapping | |
4330 | * @adapter: board private structure to initialize | |
4331 | * | |
4332 | * Once we know the feature-set enabled for the device, we'll cache | |
4333 | * the register offset the descriptor ring is assigned to. | |
4334 | * | |
4335 | * Note, the order the various feature calls is important. It must start with | |
4336 | * the "most" features enabled at the same time, then trickle down to the | |
4337 | * least amount of features turned on at once. | |
4338 | **/ | |
4339 | static void ixgbe_cache_ring_register(struct ixgbe_adapter *adapter) | |
4340 | { | |
4341 | /* start with default case */ | |
4a0b9ca0 PW |
4342 | adapter->rx_ring[0]->reg_idx = 0; |
4343 | adapter->tx_ring[0]->reg_idx = 0; | |
bc97114d | 4344 | |
1cdd1ec8 GR |
4345 | if (ixgbe_cache_ring_sriov(adapter)) |
4346 | return; | |
4347 | ||
0331a832 YZ |
4348 | #ifdef IXGBE_FCOE |
4349 | if (ixgbe_cache_ring_fcoe(adapter)) | |
4350 | return; | |
4351 | ||
4352 | #endif /* IXGBE_FCOE */ | |
bc97114d PWJ |
4353 | #ifdef CONFIG_IXGBE_DCB |
4354 | if (ixgbe_cache_ring_dcb(adapter)) | |
4355 | return; | |
4356 | ||
4357 | #endif | |
c4cf55e5 PWJ |
4358 | if (ixgbe_cache_ring_fdir(adapter)) |
4359 | return; | |
4360 | ||
bc97114d PWJ |
4361 | if (ixgbe_cache_ring_rss(adapter)) |
4362 | return; | |
021230d4 AV |
4363 | } |
4364 | ||
9a799d71 AK |
4365 | /** |
4366 | * ixgbe_alloc_queues - Allocate memory for all rings | |
4367 | * @adapter: board private structure to initialize | |
4368 | * | |
4369 | * We allocate one ring per queue at run-time since we don't know the | |
4df10466 JB |
4370 | * number of queues at compile-time. The polling_netdev array is |
4371 | * intended for Multiqueue, but should work fine with a single queue. | |
9a799d71 | 4372 | **/ |
2f90b865 | 4373 | static int ixgbe_alloc_queues(struct ixgbe_adapter *adapter) |
9a799d71 AK |
4374 | { |
4375 | int i; | |
4a0b9ca0 | 4376 | int orig_node = adapter->node; |
9a799d71 | 4377 | |
021230d4 | 4378 | for (i = 0; i < adapter->num_tx_queues; i++) { |
4a0b9ca0 PW |
4379 | struct ixgbe_ring *ring = adapter->tx_ring[i]; |
4380 | if (orig_node == -1) { | |
4381 | int cur_node = next_online_node(adapter->node); | |
4382 | if (cur_node == MAX_NUMNODES) | |
4383 | cur_node = first_online_node; | |
4384 | adapter->node = cur_node; | |
4385 | } | |
4386 | ring = kzalloc_node(sizeof(struct ixgbe_ring), GFP_KERNEL, | |
4387 | adapter->node); | |
4388 | if (!ring) | |
4389 | ring = kzalloc(sizeof(struct ixgbe_ring), GFP_KERNEL); | |
4390 | if (!ring) | |
4391 | goto err_tx_ring_allocation; | |
4392 | ring->count = adapter->tx_ring_count; | |
4393 | ring->queue_index = i; | |
4394 | ring->numa_node = adapter->node; | |
4395 | ||
4396 | adapter->tx_ring[i] = ring; | |
021230d4 | 4397 | } |
b9804972 | 4398 | |
4a0b9ca0 PW |
4399 | /* Restore the adapter's original node */ |
4400 | adapter->node = orig_node; | |
4401 | ||
9a799d71 | 4402 | for (i = 0; i < adapter->num_rx_queues; i++) { |
4a0b9ca0 PW |
4403 | struct ixgbe_ring *ring = adapter->rx_ring[i]; |
4404 | if (orig_node == -1) { | |
4405 | int cur_node = next_online_node(adapter->node); | |
4406 | if (cur_node == MAX_NUMNODES) | |
4407 | cur_node = first_online_node; | |
4408 | adapter->node = cur_node; | |
4409 | } | |
4410 | ring = kzalloc_node(sizeof(struct ixgbe_ring), GFP_KERNEL, | |
4411 | adapter->node); | |
4412 | if (!ring) | |
4413 | ring = kzalloc(sizeof(struct ixgbe_ring), GFP_KERNEL); | |
4414 | if (!ring) | |
4415 | goto err_rx_ring_allocation; | |
4416 | ring->count = adapter->rx_ring_count; | |
4417 | ring->queue_index = i; | |
4418 | ring->numa_node = adapter->node; | |
4419 | ||
4420 | adapter->rx_ring[i] = ring; | |
021230d4 AV |
4421 | } |
4422 | ||
4a0b9ca0 PW |
4423 | /* Restore the adapter's original node */ |
4424 | adapter->node = orig_node; | |
4425 | ||
021230d4 AV |
4426 | ixgbe_cache_ring_register(adapter); |
4427 | ||
4428 | return 0; | |
4429 | ||
4430 | err_rx_ring_allocation: | |
4a0b9ca0 PW |
4431 | for (i = 0; i < adapter->num_tx_queues; i++) |
4432 | kfree(adapter->tx_ring[i]); | |
021230d4 AV |
4433 | err_tx_ring_allocation: |
4434 | return -ENOMEM; | |
4435 | } | |
4436 | ||
4437 | /** | |
4438 | * ixgbe_set_interrupt_capability - set MSI-X or MSI if supported | |
4439 | * @adapter: board private structure to initialize | |
4440 | * | |
4441 | * Attempt to configure the interrupts using the best available | |
4442 | * capabilities of the hardware and the kernel. | |
4443 | **/ | |
feea6a57 | 4444 | static int ixgbe_set_interrupt_capability(struct ixgbe_adapter *adapter) |
021230d4 | 4445 | { |
8be0e467 | 4446 | struct ixgbe_hw *hw = &adapter->hw; |
021230d4 AV |
4447 | int err = 0; |
4448 | int vector, v_budget; | |
4449 | ||
4450 | /* | |
4451 | * It's easy to be greedy for MSI-X vectors, but it really | |
4452 | * doesn't do us much good if we have a lot more vectors | |
4453 | * than CPU's. So let's be conservative and only ask for | |
342bde1b | 4454 | * (roughly) the same number of vectors as there are CPU's. |
021230d4 AV |
4455 | */ |
4456 | v_budget = min(adapter->num_rx_queues + adapter->num_tx_queues, | |
342bde1b | 4457 | (int)num_online_cpus()) + NON_Q_VECTORS; |
021230d4 AV |
4458 | |
4459 | /* | |
4460 | * At the same time, hardware can only support a maximum of | |
8be0e467 PW |
4461 | * hw.mac->max_msix_vectors vectors. With features |
4462 | * such as RSS and VMDq, we can easily surpass the number of Rx and Tx | |
4463 | * descriptor queues supported by our device. Thus, we cap it off in | |
4464 | * those rare cases where the cpu count also exceeds our vector limit. | |
021230d4 | 4465 | */ |
8be0e467 | 4466 | v_budget = min(v_budget, (int)hw->mac.max_msix_vectors); |
021230d4 AV |
4467 | |
4468 | /* A failure in MSI-X entry allocation isn't fatal, but it does | |
4469 | * mean we disable MSI-X capabilities of the adapter. */ | |
4470 | adapter->msix_entries = kcalloc(v_budget, | |
b4617240 | 4471 | sizeof(struct msix_entry), GFP_KERNEL); |
7a921c93 AD |
4472 | if (adapter->msix_entries) { |
4473 | for (vector = 0; vector < v_budget; vector++) | |
4474 | adapter->msix_entries[vector].entry = vector; | |
021230d4 | 4475 | |
7a921c93 | 4476 | ixgbe_acquire_msix_vectors(adapter, v_budget); |
021230d4 | 4477 | |
7a921c93 AD |
4478 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) |
4479 | goto out; | |
4480 | } | |
26d27844 | 4481 | |
7a921c93 AD |
4482 | adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED; |
4483 | adapter->flags &= ~IXGBE_FLAG_RSS_ENABLED; | |
c4cf55e5 PWJ |
4484 | adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE; |
4485 | adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE; | |
4486 | adapter->atr_sample_rate = 0; | |
1cdd1ec8 GR |
4487 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) |
4488 | ixgbe_disable_sriov(adapter); | |
4489 | ||
7a921c93 | 4490 | ixgbe_set_num_queues(adapter); |
021230d4 | 4491 | |
021230d4 AV |
4492 | err = pci_enable_msi(adapter->pdev); |
4493 | if (!err) { | |
4494 | adapter->flags |= IXGBE_FLAG_MSI_ENABLED; | |
4495 | } else { | |
849c4542 ET |
4496 | netif_printk(adapter, hw, KERN_DEBUG, adapter->netdev, |
4497 | "Unable to allocate MSI interrupt, " | |
4498 | "falling back to legacy. Error: %d\n", err); | |
021230d4 AV |
4499 | /* reset err */ |
4500 | err = 0; | |
4501 | } | |
4502 | ||
4503 | out: | |
021230d4 AV |
4504 | return err; |
4505 | } | |
4506 | ||
7a921c93 AD |
4507 | /** |
4508 | * ixgbe_alloc_q_vectors - Allocate memory for interrupt vectors | |
4509 | * @adapter: board private structure to initialize | |
4510 | * | |
4511 | * We allocate one q_vector per queue interrupt. If allocation fails we | |
4512 | * return -ENOMEM. | |
4513 | **/ | |
4514 | static int ixgbe_alloc_q_vectors(struct ixgbe_adapter *adapter) | |
4515 | { | |
4516 | int q_idx, num_q_vectors; | |
4517 | struct ixgbe_q_vector *q_vector; | |
4518 | int napi_vectors; | |
4519 | int (*poll)(struct napi_struct *, int); | |
4520 | ||
4521 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { | |
4522 | num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; | |
4523 | napi_vectors = adapter->num_rx_queues; | |
91281fd3 | 4524 | poll = &ixgbe_clean_rxtx_many; |
7a921c93 AD |
4525 | } else { |
4526 | num_q_vectors = 1; | |
4527 | napi_vectors = 1; | |
4528 | poll = &ixgbe_poll; | |
4529 | } | |
4530 | ||
4531 | for (q_idx = 0; q_idx < num_q_vectors; q_idx++) { | |
1a6c14a2 JB |
4532 | q_vector = kzalloc_node(sizeof(struct ixgbe_q_vector), |
4533 | GFP_KERNEL, adapter->node); | |
4534 | if (!q_vector) | |
4535 | q_vector = kzalloc(sizeof(struct ixgbe_q_vector), | |
4536 | GFP_KERNEL); | |
7a921c93 AD |
4537 | if (!q_vector) |
4538 | goto err_out; | |
4539 | q_vector->adapter = adapter; | |
f7554a2b NS |
4540 | if (q_vector->txr_count && !q_vector->rxr_count) |
4541 | q_vector->eitr = adapter->tx_eitr_param; | |
4542 | else | |
4543 | q_vector->eitr = adapter->rx_eitr_param; | |
fe49f04a | 4544 | q_vector->v_idx = q_idx; |
91281fd3 | 4545 | netif_napi_add(adapter->netdev, &q_vector->napi, (*poll), 64); |
7a921c93 AD |
4546 | adapter->q_vector[q_idx] = q_vector; |
4547 | } | |
4548 | ||
4549 | return 0; | |
4550 | ||
4551 | err_out: | |
4552 | while (q_idx) { | |
4553 | q_idx--; | |
4554 | q_vector = adapter->q_vector[q_idx]; | |
4555 | netif_napi_del(&q_vector->napi); | |
4556 | kfree(q_vector); | |
4557 | adapter->q_vector[q_idx] = NULL; | |
4558 | } | |
4559 | return -ENOMEM; | |
4560 | } | |
4561 | ||
4562 | /** | |
4563 | * ixgbe_free_q_vectors - Free memory allocated for interrupt vectors | |
4564 | * @adapter: board private structure to initialize | |
4565 | * | |
4566 | * This function frees the memory allocated to the q_vectors. In addition if | |
4567 | * NAPI is enabled it will delete any references to the NAPI struct prior | |
4568 | * to freeing the q_vector. | |
4569 | **/ | |
4570 | static void ixgbe_free_q_vectors(struct ixgbe_adapter *adapter) | |
4571 | { | |
4572 | int q_idx, num_q_vectors; | |
7a921c93 | 4573 | |
91281fd3 | 4574 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) |
7a921c93 | 4575 | num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; |
91281fd3 | 4576 | else |
7a921c93 | 4577 | num_q_vectors = 1; |
7a921c93 AD |
4578 | |
4579 | for (q_idx = 0; q_idx < num_q_vectors; q_idx++) { | |
4580 | struct ixgbe_q_vector *q_vector = adapter->q_vector[q_idx]; | |
7a921c93 | 4581 | adapter->q_vector[q_idx] = NULL; |
91281fd3 | 4582 | netif_napi_del(&q_vector->napi); |
7a921c93 AD |
4583 | kfree(q_vector); |
4584 | } | |
4585 | } | |
4586 | ||
7b25cdba | 4587 | static void ixgbe_reset_interrupt_capability(struct ixgbe_adapter *adapter) |
021230d4 AV |
4588 | { |
4589 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { | |
4590 | adapter->flags &= ~IXGBE_FLAG_MSIX_ENABLED; | |
4591 | pci_disable_msix(adapter->pdev); | |
4592 | kfree(adapter->msix_entries); | |
4593 | adapter->msix_entries = NULL; | |
4594 | } else if (adapter->flags & IXGBE_FLAG_MSI_ENABLED) { | |
4595 | adapter->flags &= ~IXGBE_FLAG_MSI_ENABLED; | |
4596 | pci_disable_msi(adapter->pdev); | |
4597 | } | |
021230d4 AV |
4598 | } |
4599 | ||
4600 | /** | |
4601 | * ixgbe_init_interrupt_scheme - Determine proper interrupt scheme | |
4602 | * @adapter: board private structure to initialize | |
4603 | * | |
4604 | * We determine which interrupt scheme to use based on... | |
4605 | * - Kernel support (MSI, MSI-X) | |
4606 | * - which can be user-defined (via MODULE_PARAM) | |
4607 | * - Hardware queue count (num_*_queues) | |
4608 | * - defined by miscellaneous hardware support/features (RSS, etc.) | |
4609 | **/ | |
2f90b865 | 4610 | int ixgbe_init_interrupt_scheme(struct ixgbe_adapter *adapter) |
021230d4 AV |
4611 | { |
4612 | int err; | |
4613 | ||
4614 | /* Number of supported queues */ | |
4615 | ixgbe_set_num_queues(adapter); | |
4616 | ||
021230d4 AV |
4617 | err = ixgbe_set_interrupt_capability(adapter); |
4618 | if (err) { | |
849c4542 | 4619 | e_dev_err("Unable to setup interrupt capabilities\n"); |
021230d4 | 4620 | goto err_set_interrupt; |
9a799d71 AK |
4621 | } |
4622 | ||
7a921c93 AD |
4623 | err = ixgbe_alloc_q_vectors(adapter); |
4624 | if (err) { | |
849c4542 | 4625 | e_dev_err("Unable to allocate memory for queue vectors\n"); |
7a921c93 AD |
4626 | goto err_alloc_q_vectors; |
4627 | } | |
4628 | ||
4629 | err = ixgbe_alloc_queues(adapter); | |
4630 | if (err) { | |
849c4542 | 4631 | e_dev_err("Unable to allocate memory for queues\n"); |
7a921c93 AD |
4632 | goto err_alloc_queues; |
4633 | } | |
4634 | ||
849c4542 | 4635 | e_dev_info("Multiqueue %s: Rx Queue count = %u, Tx Queue count = %u\n", |
396e799c ET |
4636 | (adapter->num_rx_queues > 1) ? "Enabled" : "Disabled", |
4637 | adapter->num_rx_queues, adapter->num_tx_queues); | |
021230d4 AV |
4638 | |
4639 | set_bit(__IXGBE_DOWN, &adapter->state); | |
4640 | ||
9a799d71 | 4641 | return 0; |
021230d4 | 4642 | |
7a921c93 AD |
4643 | err_alloc_queues: |
4644 | ixgbe_free_q_vectors(adapter); | |
4645 | err_alloc_q_vectors: | |
4646 | ixgbe_reset_interrupt_capability(adapter); | |
021230d4 | 4647 | err_set_interrupt: |
7a921c93 AD |
4648 | return err; |
4649 | } | |
4650 | ||
4651 | /** | |
4652 | * ixgbe_clear_interrupt_scheme - Clear the current interrupt scheme settings | |
4653 | * @adapter: board private structure to clear interrupt scheme on | |
4654 | * | |
4655 | * We go through and clear interrupt specific resources and reset the structure | |
4656 | * to pre-load conditions | |
4657 | **/ | |
4658 | void ixgbe_clear_interrupt_scheme(struct ixgbe_adapter *adapter) | |
4659 | { | |
4a0b9ca0 PW |
4660 | int i; |
4661 | ||
4662 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
4663 | kfree(adapter->tx_ring[i]); | |
4664 | adapter->tx_ring[i] = NULL; | |
4665 | } | |
4666 | for (i = 0; i < adapter->num_rx_queues; i++) { | |
4667 | kfree(adapter->rx_ring[i]); | |
4668 | adapter->rx_ring[i] = NULL; | |
4669 | } | |
7a921c93 AD |
4670 | |
4671 | ixgbe_free_q_vectors(adapter); | |
4672 | ixgbe_reset_interrupt_capability(adapter); | |
9a799d71 AK |
4673 | } |
4674 | ||
c4900be0 DS |
4675 | /** |
4676 | * ixgbe_sfp_timer - worker thread to find a missing module | |
4677 | * @data: pointer to our adapter struct | |
4678 | **/ | |
4679 | static void ixgbe_sfp_timer(unsigned long data) | |
4680 | { | |
4681 | struct ixgbe_adapter *adapter = (struct ixgbe_adapter *)data; | |
4682 | ||
4df10466 JB |
4683 | /* |
4684 | * Do the sfp_timer outside of interrupt context due to the | |
c4900be0 DS |
4685 | * delays that sfp+ detection requires |
4686 | */ | |
4687 | schedule_work(&adapter->sfp_task); | |
4688 | } | |
4689 | ||
4690 | /** | |
4691 | * ixgbe_sfp_task - worker thread to find a missing module | |
4692 | * @work: pointer to work_struct containing our data | |
4693 | **/ | |
4694 | static void ixgbe_sfp_task(struct work_struct *work) | |
4695 | { | |
4696 | struct ixgbe_adapter *adapter = container_of(work, | |
4697 | struct ixgbe_adapter, | |
4698 | sfp_task); | |
4699 | struct ixgbe_hw *hw = &adapter->hw; | |
4700 | ||
4701 | if ((hw->phy.type == ixgbe_phy_nl) && | |
4702 | (hw->phy.sfp_type == ixgbe_sfp_type_not_present)) { | |
4703 | s32 ret = hw->phy.ops.identify_sfp(hw); | |
63d6e1d8 | 4704 | if (ret == IXGBE_ERR_SFP_NOT_PRESENT) |
c4900be0 DS |
4705 | goto reschedule; |
4706 | ret = hw->phy.ops.reset(hw); | |
4707 | if (ret == IXGBE_ERR_SFP_NOT_SUPPORTED) { | |
849c4542 ET |
4708 | e_dev_err("failed to initialize because an unsupported " |
4709 | "SFP+ module type was detected.\n"); | |
4710 | e_dev_err("Reload the driver after installing a " | |
4711 | "supported module.\n"); | |
c4900be0 DS |
4712 | unregister_netdev(adapter->netdev); |
4713 | } else { | |
396e799c | 4714 | e_info(probe, "detected SFP+: %d\n", hw->phy.sfp_type); |
c4900be0 DS |
4715 | } |
4716 | /* don't need this routine any more */ | |
4717 | clear_bit(__IXGBE_SFP_MODULE_NOT_FOUND, &adapter->state); | |
4718 | } | |
4719 | return; | |
4720 | reschedule: | |
4721 | if (test_bit(__IXGBE_SFP_MODULE_NOT_FOUND, &adapter->state)) | |
4722 | mod_timer(&adapter->sfp_timer, | |
4723 | round_jiffies(jiffies + (2 * HZ))); | |
4724 | } | |
4725 | ||
9a799d71 AK |
4726 | /** |
4727 | * ixgbe_sw_init - Initialize general software structures (struct ixgbe_adapter) | |
4728 | * @adapter: board private structure to initialize | |
4729 | * | |
4730 | * ixgbe_sw_init initializes the Adapter private data structure. | |
4731 | * Fields are initialized based on PCI device information and | |
4732 | * OS network device settings (MTU size). | |
4733 | **/ | |
4734 | static int __devinit ixgbe_sw_init(struct ixgbe_adapter *adapter) | |
4735 | { | |
4736 | struct ixgbe_hw *hw = &adapter->hw; | |
4737 | struct pci_dev *pdev = adapter->pdev; | |
9a713e7c | 4738 | struct net_device *dev = adapter->netdev; |
021230d4 | 4739 | unsigned int rss; |
7a6b6f51 | 4740 | #ifdef CONFIG_IXGBE_DCB |
2f90b865 AD |
4741 | int j; |
4742 | struct tc_configuration *tc; | |
4743 | #endif | |
021230d4 | 4744 | |
c44ade9e JB |
4745 | /* PCI config space info */ |
4746 | ||
4747 | hw->vendor_id = pdev->vendor; | |
4748 | hw->device_id = pdev->device; | |
4749 | hw->revision_id = pdev->revision; | |
4750 | hw->subsystem_vendor_id = pdev->subsystem_vendor; | |
4751 | hw->subsystem_device_id = pdev->subsystem_device; | |
4752 | ||
021230d4 AV |
4753 | /* Set capability flags */ |
4754 | rss = min(IXGBE_MAX_RSS_INDICES, (int)num_online_cpus()); | |
4755 | adapter->ring_feature[RING_F_RSS].indices = rss; | |
4756 | adapter->flags |= IXGBE_FLAG_RSS_ENABLED; | |
2f90b865 | 4757 | adapter->ring_feature[RING_F_DCB].indices = IXGBE_MAX_DCB_INDICES; |
bf069c97 DS |
4758 | if (hw->mac.type == ixgbe_mac_82598EB) { |
4759 | if (hw->device_id == IXGBE_DEV_ID_82598AT) | |
4760 | adapter->flags |= IXGBE_FLAG_FAN_FAIL_CAPABLE; | |
e8e26350 | 4761 | adapter->max_msix_q_vectors = MAX_MSIX_Q_VECTORS_82598; |
bf069c97 | 4762 | } else if (hw->mac.type == ixgbe_mac_82599EB) { |
e8e26350 | 4763 | adapter->max_msix_q_vectors = MAX_MSIX_Q_VECTORS_82599; |
0c19d6af PWJ |
4764 | adapter->flags2 |= IXGBE_FLAG2_RSC_CAPABLE; |
4765 | adapter->flags2 |= IXGBE_FLAG2_RSC_ENABLED; | |
119fc60a MC |
4766 | if (hw->device_id == IXGBE_DEV_ID_82599_T3_LOM) |
4767 | adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_CAPABLE; | |
9a713e7c PW |
4768 | if (dev->features & NETIF_F_NTUPLE) { |
4769 | /* Flow Director perfect filter enabled */ | |
4770 | adapter->flags |= IXGBE_FLAG_FDIR_PERFECT_CAPABLE; | |
4771 | adapter->atr_sample_rate = 0; | |
4772 | spin_lock_init(&adapter->fdir_perfect_lock); | |
4773 | } else { | |
4774 | /* Flow Director hash filters enabled */ | |
4775 | adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE; | |
4776 | adapter->atr_sample_rate = 20; | |
4777 | } | |
c4cf55e5 PWJ |
4778 | adapter->ring_feature[RING_F_FDIR].indices = |
4779 | IXGBE_MAX_FDIR_INDICES; | |
c4cf55e5 | 4780 | adapter->fdir_pballoc = 0; |
eacd73f7 | 4781 | #ifdef IXGBE_FCOE |
0d551589 YZ |
4782 | adapter->flags |= IXGBE_FLAG_FCOE_CAPABLE; |
4783 | adapter->flags &= ~IXGBE_FLAG_FCOE_ENABLED; | |
4784 | adapter->ring_feature[RING_F_FCOE].indices = 0; | |
61a0f421 | 4785 | #ifdef CONFIG_IXGBE_DCB |
6ee16520 YZ |
4786 | /* Default traffic class to use for FCoE */ |
4787 | adapter->fcoe.tc = IXGBE_FCOE_DEFTC; | |
61a0f421 | 4788 | #endif |
eacd73f7 | 4789 | #endif /* IXGBE_FCOE */ |
f8212f97 | 4790 | } |
2f90b865 | 4791 | |
7a6b6f51 | 4792 | #ifdef CONFIG_IXGBE_DCB |
2f90b865 AD |
4793 | /* Configure DCB traffic classes */ |
4794 | for (j = 0; j < MAX_TRAFFIC_CLASS; j++) { | |
4795 | tc = &adapter->dcb_cfg.tc_config[j]; | |
4796 | tc->path[DCB_TX_CONFIG].bwg_id = 0; | |
4797 | tc->path[DCB_TX_CONFIG].bwg_percent = 12 + (j & 1); | |
4798 | tc->path[DCB_RX_CONFIG].bwg_id = 0; | |
4799 | tc->path[DCB_RX_CONFIG].bwg_percent = 12 + (j & 1); | |
4800 | tc->dcb_pfc = pfc_disabled; | |
4801 | } | |
4802 | adapter->dcb_cfg.bw_percentage[DCB_TX_CONFIG][0] = 100; | |
4803 | adapter->dcb_cfg.bw_percentage[DCB_RX_CONFIG][0] = 100; | |
4804 | adapter->dcb_cfg.rx_pba_cfg = pba_equal; | |
264857b8 | 4805 | adapter->dcb_cfg.pfc_mode_enable = false; |
2f90b865 AD |
4806 | adapter->dcb_cfg.round_robin_enable = false; |
4807 | adapter->dcb_set_bitmap = 0x00; | |
4808 | ixgbe_copy_dcb_cfg(&adapter->dcb_cfg, &adapter->temp_dcb_cfg, | |
4809 | adapter->ring_feature[RING_F_DCB].indices); | |
4810 | ||
4811 | #endif | |
9a799d71 AK |
4812 | |
4813 | /* default flow control settings */ | |
cd7664f6 | 4814 | hw->fc.requested_mode = ixgbe_fc_full; |
71fd570b | 4815 | hw->fc.current_mode = ixgbe_fc_full; /* init for ethtool output */ |
264857b8 PWJ |
4816 | #ifdef CONFIG_DCB |
4817 | adapter->last_lfc_mode = hw->fc.current_mode; | |
4818 | #endif | |
2b9ade93 JB |
4819 | hw->fc.high_water = IXGBE_DEFAULT_FCRTH; |
4820 | hw->fc.low_water = IXGBE_DEFAULT_FCRTL; | |
4821 | hw->fc.pause_time = IXGBE_DEFAULT_FCPAUSE; | |
4822 | hw->fc.send_xon = true; | |
71fd570b | 4823 | hw->fc.disable_fc_autoneg = false; |
9a799d71 | 4824 | |
30efa5a3 | 4825 | /* enable itr by default in dynamic mode */ |
f7554a2b NS |
4826 | adapter->rx_itr_setting = 1; |
4827 | adapter->rx_eitr_param = 20000; | |
4828 | adapter->tx_itr_setting = 1; | |
4829 | adapter->tx_eitr_param = 10000; | |
30efa5a3 JB |
4830 | |
4831 | /* set defaults for eitr in MegaBytes */ | |
4832 | adapter->eitr_low = 10; | |
4833 | adapter->eitr_high = 20; | |
4834 | ||
4835 | /* set default ring sizes */ | |
4836 | adapter->tx_ring_count = IXGBE_DEFAULT_TXD; | |
4837 | adapter->rx_ring_count = IXGBE_DEFAULT_RXD; | |
4838 | ||
9a799d71 | 4839 | /* initialize eeprom parameters */ |
c44ade9e | 4840 | if (ixgbe_init_eeprom_params_generic(hw)) { |
849c4542 | 4841 | e_dev_err("EEPROM initialization failed\n"); |
9a799d71 AK |
4842 | return -EIO; |
4843 | } | |
4844 | ||
021230d4 | 4845 | /* enable rx csum by default */ |
9a799d71 AK |
4846 | adapter->flags |= IXGBE_FLAG_RX_CSUM_ENABLED; |
4847 | ||
1a6c14a2 JB |
4848 | /* get assigned NUMA node */ |
4849 | adapter->node = dev_to_node(&pdev->dev); | |
4850 | ||
9a799d71 AK |
4851 | set_bit(__IXGBE_DOWN, &adapter->state); |
4852 | ||
4853 | return 0; | |
4854 | } | |
4855 | ||
4856 | /** | |
4857 | * ixgbe_setup_tx_resources - allocate Tx resources (Descriptors) | |
4858 | * @adapter: board private structure | |
3a581073 | 4859 | * @tx_ring: tx descriptor ring (for a specific queue) to setup |
9a799d71 AK |
4860 | * |
4861 | * Return 0 on success, negative on failure | |
4862 | **/ | |
4863 | int ixgbe_setup_tx_resources(struct ixgbe_adapter *adapter, | |
e01c31a5 | 4864 | struct ixgbe_ring *tx_ring) |
9a799d71 AK |
4865 | { |
4866 | struct pci_dev *pdev = adapter->pdev; | |
4867 | int size; | |
4868 | ||
3a581073 | 4869 | size = sizeof(struct ixgbe_tx_buffer) * tx_ring->count; |
4a0b9ca0 | 4870 | tx_ring->tx_buffer_info = vmalloc_node(size, tx_ring->numa_node); |
1a6c14a2 JB |
4871 | if (!tx_ring->tx_buffer_info) |
4872 | tx_ring->tx_buffer_info = vmalloc(size); | |
e01c31a5 JB |
4873 | if (!tx_ring->tx_buffer_info) |
4874 | goto err; | |
3a581073 | 4875 | memset(tx_ring->tx_buffer_info, 0, size); |
9a799d71 AK |
4876 | |
4877 | /* round up to nearest 4K */ | |
12207e49 | 4878 | tx_ring->size = tx_ring->count * sizeof(union ixgbe_adv_tx_desc); |
3a581073 | 4879 | tx_ring->size = ALIGN(tx_ring->size, 4096); |
9a799d71 | 4880 | |
1b507730 NN |
4881 | tx_ring->desc = dma_alloc_coherent(&pdev->dev, tx_ring->size, |
4882 | &tx_ring->dma, GFP_KERNEL); | |
e01c31a5 JB |
4883 | if (!tx_ring->desc) |
4884 | goto err; | |
9a799d71 | 4885 | |
3a581073 JB |
4886 | tx_ring->next_to_use = 0; |
4887 | tx_ring->next_to_clean = 0; | |
4888 | tx_ring->work_limit = tx_ring->count; | |
9a799d71 | 4889 | return 0; |
e01c31a5 JB |
4890 | |
4891 | err: | |
4892 | vfree(tx_ring->tx_buffer_info); | |
4893 | tx_ring->tx_buffer_info = NULL; | |
396e799c | 4894 | e_err(probe, "Unable to allocate memory for the Tx descriptor ring\n"); |
e01c31a5 | 4895 | return -ENOMEM; |
9a799d71 AK |
4896 | } |
4897 | ||
69888674 AD |
4898 | /** |
4899 | * ixgbe_setup_all_tx_resources - allocate all queues Tx resources | |
4900 | * @adapter: board private structure | |
4901 | * | |
4902 | * If this function returns with an error, then it's possible one or | |
4903 | * more of the rings is populated (while the rest are not). It is the | |
4904 | * callers duty to clean those orphaned rings. | |
4905 | * | |
4906 | * Return 0 on success, negative on failure | |
4907 | **/ | |
4908 | static int ixgbe_setup_all_tx_resources(struct ixgbe_adapter *adapter) | |
4909 | { | |
4910 | int i, err = 0; | |
4911 | ||
4912 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
4a0b9ca0 | 4913 | err = ixgbe_setup_tx_resources(adapter, adapter->tx_ring[i]); |
69888674 AD |
4914 | if (!err) |
4915 | continue; | |
396e799c | 4916 | e_err(probe, "Allocation for Tx Queue %u failed\n", i); |
69888674 AD |
4917 | break; |
4918 | } | |
4919 | ||
4920 | return err; | |
4921 | } | |
4922 | ||
9a799d71 AK |
4923 | /** |
4924 | * ixgbe_setup_rx_resources - allocate Rx resources (Descriptors) | |
4925 | * @adapter: board private structure | |
3a581073 | 4926 | * @rx_ring: rx descriptor ring (for a specific queue) to setup |
9a799d71 AK |
4927 | * |
4928 | * Returns 0 on success, negative on failure | |
4929 | **/ | |
4930 | int ixgbe_setup_rx_resources(struct ixgbe_adapter *adapter, | |
b4617240 | 4931 | struct ixgbe_ring *rx_ring) |
9a799d71 AK |
4932 | { |
4933 | struct pci_dev *pdev = adapter->pdev; | |
021230d4 | 4934 | int size; |
9a799d71 | 4935 | |
3a581073 | 4936 | size = sizeof(struct ixgbe_rx_buffer) * rx_ring->count; |
1a6c14a2 JB |
4937 | rx_ring->rx_buffer_info = vmalloc_node(size, adapter->node); |
4938 | if (!rx_ring->rx_buffer_info) | |
4939 | rx_ring->rx_buffer_info = vmalloc(size); | |
3a581073 | 4940 | if (!rx_ring->rx_buffer_info) { |
396e799c ET |
4941 | e_err(probe, "vmalloc allocation failed for the Rx " |
4942 | "descriptor ring\n"); | |
177db6ff | 4943 | goto alloc_failed; |
9a799d71 | 4944 | } |
3a581073 | 4945 | memset(rx_ring->rx_buffer_info, 0, size); |
9a799d71 | 4946 | |
9a799d71 | 4947 | /* Round up to nearest 4K */ |
3a581073 JB |
4948 | rx_ring->size = rx_ring->count * sizeof(union ixgbe_adv_rx_desc); |
4949 | rx_ring->size = ALIGN(rx_ring->size, 4096); | |
9a799d71 | 4950 | |
1b507730 NN |
4951 | rx_ring->desc = dma_alloc_coherent(&pdev->dev, rx_ring->size, |
4952 | &rx_ring->dma, GFP_KERNEL); | |
9a799d71 | 4953 | |
3a581073 | 4954 | if (!rx_ring->desc) { |
396e799c ET |
4955 | e_err(probe, "Memory allocation failed for the Rx " |
4956 | "descriptor ring\n"); | |
3a581073 | 4957 | vfree(rx_ring->rx_buffer_info); |
177db6ff | 4958 | goto alloc_failed; |
9a799d71 AK |
4959 | } |
4960 | ||
3a581073 JB |
4961 | rx_ring->next_to_clean = 0; |
4962 | rx_ring->next_to_use = 0; | |
9a799d71 AK |
4963 | |
4964 | return 0; | |
177db6ff MC |
4965 | |
4966 | alloc_failed: | |
177db6ff | 4967 | return -ENOMEM; |
9a799d71 AK |
4968 | } |
4969 | ||
69888674 AD |
4970 | /** |
4971 | * ixgbe_setup_all_rx_resources - allocate all queues Rx resources | |
4972 | * @adapter: board private structure | |
4973 | * | |
4974 | * If this function returns with an error, then it's possible one or | |
4975 | * more of the rings is populated (while the rest are not). It is the | |
4976 | * callers duty to clean those orphaned rings. | |
4977 | * | |
4978 | * Return 0 on success, negative on failure | |
4979 | **/ | |
4980 | ||
4981 | static int ixgbe_setup_all_rx_resources(struct ixgbe_adapter *adapter) | |
4982 | { | |
4983 | int i, err = 0; | |
4984 | ||
4985 | for (i = 0; i < adapter->num_rx_queues; i++) { | |
4a0b9ca0 | 4986 | err = ixgbe_setup_rx_resources(adapter, adapter->rx_ring[i]); |
69888674 AD |
4987 | if (!err) |
4988 | continue; | |
396e799c | 4989 | e_err(probe, "Allocation for Rx Queue %u failed\n", i); |
69888674 AD |
4990 | break; |
4991 | } | |
4992 | ||
4993 | return err; | |
4994 | } | |
4995 | ||
9a799d71 AK |
4996 | /** |
4997 | * ixgbe_free_tx_resources - Free Tx Resources per Queue | |
4998 | * @adapter: board private structure | |
4999 | * @tx_ring: Tx descriptor ring for a specific queue | |
5000 | * | |
5001 | * Free all transmit software resources | |
5002 | **/ | |
c431f97e JB |
5003 | void ixgbe_free_tx_resources(struct ixgbe_adapter *adapter, |
5004 | struct ixgbe_ring *tx_ring) | |
9a799d71 AK |
5005 | { |
5006 | struct pci_dev *pdev = adapter->pdev; | |
5007 | ||
5008 | ixgbe_clean_tx_ring(adapter, tx_ring); | |
5009 | ||
5010 | vfree(tx_ring->tx_buffer_info); | |
5011 | tx_ring->tx_buffer_info = NULL; | |
5012 | ||
1b507730 NN |
5013 | dma_free_coherent(&pdev->dev, tx_ring->size, tx_ring->desc, |
5014 | tx_ring->dma); | |
9a799d71 AK |
5015 | |
5016 | tx_ring->desc = NULL; | |
5017 | } | |
5018 | ||
5019 | /** | |
5020 | * ixgbe_free_all_tx_resources - Free Tx Resources for All Queues | |
5021 | * @adapter: board private structure | |
5022 | * | |
5023 | * Free all transmit software resources | |
5024 | **/ | |
5025 | static void ixgbe_free_all_tx_resources(struct ixgbe_adapter *adapter) | |
5026 | { | |
5027 | int i; | |
5028 | ||
5029 | for (i = 0; i < adapter->num_tx_queues; i++) | |
4a0b9ca0 PW |
5030 | if (adapter->tx_ring[i]->desc) |
5031 | ixgbe_free_tx_resources(adapter, adapter->tx_ring[i]); | |
9a799d71 AK |
5032 | } |
5033 | ||
5034 | /** | |
b4617240 | 5035 | * ixgbe_free_rx_resources - Free Rx Resources |
9a799d71 AK |
5036 | * @adapter: board private structure |
5037 | * @rx_ring: ring to clean the resources from | |
5038 | * | |
5039 | * Free all receive software resources | |
5040 | **/ | |
c431f97e JB |
5041 | void ixgbe_free_rx_resources(struct ixgbe_adapter *adapter, |
5042 | struct ixgbe_ring *rx_ring) | |
9a799d71 AK |
5043 | { |
5044 | struct pci_dev *pdev = adapter->pdev; | |
5045 | ||
5046 | ixgbe_clean_rx_ring(adapter, rx_ring); | |
5047 | ||
5048 | vfree(rx_ring->rx_buffer_info); | |
5049 | rx_ring->rx_buffer_info = NULL; | |
5050 | ||
1b507730 NN |
5051 | dma_free_coherent(&pdev->dev, rx_ring->size, rx_ring->desc, |
5052 | rx_ring->dma); | |
9a799d71 AK |
5053 | |
5054 | rx_ring->desc = NULL; | |
5055 | } | |
5056 | ||
5057 | /** | |
5058 | * ixgbe_free_all_rx_resources - Free Rx Resources for All Queues | |
5059 | * @adapter: board private structure | |
5060 | * | |
5061 | * Free all receive software resources | |
5062 | **/ | |
5063 | static void ixgbe_free_all_rx_resources(struct ixgbe_adapter *adapter) | |
5064 | { | |
5065 | int i; | |
5066 | ||
5067 | for (i = 0; i < adapter->num_rx_queues; i++) | |
4a0b9ca0 PW |
5068 | if (adapter->rx_ring[i]->desc) |
5069 | ixgbe_free_rx_resources(adapter, adapter->rx_ring[i]); | |
9a799d71 AK |
5070 | } |
5071 | ||
9a799d71 AK |
5072 | /** |
5073 | * ixgbe_change_mtu - Change the Maximum Transfer Unit | |
5074 | * @netdev: network interface device structure | |
5075 | * @new_mtu: new value for maximum frame size | |
5076 | * | |
5077 | * Returns 0 on success, negative on failure | |
5078 | **/ | |
5079 | static int ixgbe_change_mtu(struct net_device *netdev, int new_mtu) | |
5080 | { | |
5081 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
5082 | int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN; | |
5083 | ||
42c783c5 JB |
5084 | /* MTU < 68 is an error and causes problems on some kernels */ |
5085 | if ((new_mtu < 68) || (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE)) | |
9a799d71 AK |
5086 | return -EINVAL; |
5087 | ||
396e799c | 5088 | e_info(probe, "changing MTU from %d to %d\n", netdev->mtu, new_mtu); |
021230d4 | 5089 | /* must set new MTU before calling down or up */ |
9a799d71 AK |
5090 | netdev->mtu = new_mtu; |
5091 | ||
d4f80882 AV |
5092 | if (netif_running(netdev)) |
5093 | ixgbe_reinit_locked(adapter); | |
9a799d71 AK |
5094 | |
5095 | return 0; | |
5096 | } | |
5097 | ||
5098 | /** | |
5099 | * ixgbe_open - Called when a network interface is made active | |
5100 | * @netdev: network interface device structure | |
5101 | * | |
5102 | * Returns 0 on success, negative value on failure | |
5103 | * | |
5104 | * The open entry point is called when a network interface is made | |
5105 | * active by the system (IFF_UP). At this point all resources needed | |
5106 | * for transmit and receive operations are allocated, the interrupt | |
5107 | * handler is registered with the OS, the watchdog timer is started, | |
5108 | * and the stack is notified that the interface is ready. | |
5109 | **/ | |
5110 | static int ixgbe_open(struct net_device *netdev) | |
5111 | { | |
5112 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
5113 | int err; | |
4bebfaa5 AK |
5114 | |
5115 | /* disallow open during test */ | |
5116 | if (test_bit(__IXGBE_TESTING, &adapter->state)) | |
5117 | return -EBUSY; | |
9a799d71 | 5118 | |
54386467 JB |
5119 | netif_carrier_off(netdev); |
5120 | ||
9a799d71 AK |
5121 | /* allocate transmit descriptors */ |
5122 | err = ixgbe_setup_all_tx_resources(adapter); | |
5123 | if (err) | |
5124 | goto err_setup_tx; | |
5125 | ||
9a799d71 AK |
5126 | /* allocate receive descriptors */ |
5127 | err = ixgbe_setup_all_rx_resources(adapter); | |
5128 | if (err) | |
5129 | goto err_setup_rx; | |
5130 | ||
5131 | ixgbe_configure(adapter); | |
5132 | ||
021230d4 | 5133 | err = ixgbe_request_irq(adapter); |
9a799d71 AK |
5134 | if (err) |
5135 | goto err_req_irq; | |
5136 | ||
9a799d71 AK |
5137 | err = ixgbe_up_complete(adapter); |
5138 | if (err) | |
5139 | goto err_up; | |
5140 | ||
d55b53ff JK |
5141 | netif_tx_start_all_queues(netdev); |
5142 | ||
9a799d71 AK |
5143 | return 0; |
5144 | ||
5145 | err_up: | |
5eba3699 | 5146 | ixgbe_release_hw_control(adapter); |
9a799d71 AK |
5147 | ixgbe_free_irq(adapter); |
5148 | err_req_irq: | |
9a799d71 | 5149 | err_setup_rx: |
a20a1199 | 5150 | ixgbe_free_all_rx_resources(adapter); |
9a799d71 | 5151 | err_setup_tx: |
a20a1199 | 5152 | ixgbe_free_all_tx_resources(adapter); |
9a799d71 AK |
5153 | ixgbe_reset(adapter); |
5154 | ||
5155 | return err; | |
5156 | } | |
5157 | ||
5158 | /** | |
5159 | * ixgbe_close - Disables a network interface | |
5160 | * @netdev: network interface device structure | |
5161 | * | |
5162 | * Returns 0, this is not allowed to fail | |
5163 | * | |
5164 | * The close entry point is called when an interface is de-activated | |
5165 | * by the OS. The hardware is still under the drivers control, but | |
5166 | * needs to be disabled. A global MAC reset is issued to stop the | |
5167 | * hardware, and all transmit and receive resources are freed. | |
5168 | **/ | |
5169 | static int ixgbe_close(struct net_device *netdev) | |
5170 | { | |
5171 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
9a799d71 AK |
5172 | |
5173 | ixgbe_down(adapter); | |
5174 | ixgbe_free_irq(adapter); | |
5175 | ||
5176 | ixgbe_free_all_tx_resources(adapter); | |
5177 | ixgbe_free_all_rx_resources(adapter); | |
5178 | ||
5eba3699 | 5179 | ixgbe_release_hw_control(adapter); |
9a799d71 AK |
5180 | |
5181 | return 0; | |
5182 | } | |
5183 | ||
b3c8b4ba AD |
5184 | #ifdef CONFIG_PM |
5185 | static int ixgbe_resume(struct pci_dev *pdev) | |
5186 | { | |
5187 | struct net_device *netdev = pci_get_drvdata(pdev); | |
5188 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
5189 | u32 err; | |
5190 | ||
5191 | pci_set_power_state(pdev, PCI_D0); | |
5192 | pci_restore_state(pdev); | |
656ab817 DS |
5193 | /* |
5194 | * pci_restore_state clears dev->state_saved so call | |
5195 | * pci_save_state to restore it. | |
5196 | */ | |
5197 | pci_save_state(pdev); | |
9ce77666 | 5198 | |
5199 | err = pci_enable_device_mem(pdev); | |
b3c8b4ba | 5200 | if (err) { |
849c4542 | 5201 | e_dev_err("Cannot enable PCI device from suspend\n"); |
b3c8b4ba AD |
5202 | return err; |
5203 | } | |
5204 | pci_set_master(pdev); | |
5205 | ||
dd4d8ca6 | 5206 | pci_wake_from_d3(pdev, false); |
b3c8b4ba AD |
5207 | |
5208 | err = ixgbe_init_interrupt_scheme(adapter); | |
5209 | if (err) { | |
849c4542 | 5210 | e_dev_err("Cannot initialize interrupts for device\n"); |
b3c8b4ba AD |
5211 | return err; |
5212 | } | |
5213 | ||
b3c8b4ba AD |
5214 | ixgbe_reset(adapter); |
5215 | ||
495dce12 WJP |
5216 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); |
5217 | ||
b3c8b4ba AD |
5218 | if (netif_running(netdev)) { |
5219 | err = ixgbe_open(adapter->netdev); | |
5220 | if (err) | |
5221 | return err; | |
5222 | } | |
5223 | ||
5224 | netif_device_attach(netdev); | |
5225 | ||
5226 | return 0; | |
5227 | } | |
b3c8b4ba | 5228 | #endif /* CONFIG_PM */ |
9d8d05ae RW |
5229 | |
5230 | static int __ixgbe_shutdown(struct pci_dev *pdev, bool *enable_wake) | |
b3c8b4ba AD |
5231 | { |
5232 | struct net_device *netdev = pci_get_drvdata(pdev); | |
5233 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
e8e26350 PW |
5234 | struct ixgbe_hw *hw = &adapter->hw; |
5235 | u32 ctrl, fctrl; | |
5236 | u32 wufc = adapter->wol; | |
b3c8b4ba AD |
5237 | #ifdef CONFIG_PM |
5238 | int retval = 0; | |
5239 | #endif | |
5240 | ||
5241 | netif_device_detach(netdev); | |
5242 | ||
5243 | if (netif_running(netdev)) { | |
5244 | ixgbe_down(adapter); | |
5245 | ixgbe_free_irq(adapter); | |
5246 | ixgbe_free_all_tx_resources(adapter); | |
5247 | ixgbe_free_all_rx_resources(adapter); | |
5248 | } | |
b3c8b4ba AD |
5249 | |
5250 | #ifdef CONFIG_PM | |
5251 | retval = pci_save_state(pdev); | |
5252 | if (retval) | |
5253 | return retval; | |
4df10466 | 5254 | |
b3c8b4ba | 5255 | #endif |
e8e26350 PW |
5256 | if (wufc) { |
5257 | ixgbe_set_rx_mode(netdev); | |
b3c8b4ba | 5258 | |
e8e26350 PW |
5259 | /* turn on all-multi mode if wake on multicast is enabled */ |
5260 | if (wufc & IXGBE_WUFC_MC) { | |
5261 | fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL); | |
5262 | fctrl |= IXGBE_FCTRL_MPE; | |
5263 | IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl); | |
5264 | } | |
5265 | ||
5266 | ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL); | |
5267 | ctrl |= IXGBE_CTRL_GIO_DIS; | |
5268 | IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl); | |
5269 | ||
5270 | IXGBE_WRITE_REG(hw, IXGBE_WUFC, wufc); | |
5271 | } else { | |
5272 | IXGBE_WRITE_REG(hw, IXGBE_WUC, 0); | |
5273 | IXGBE_WRITE_REG(hw, IXGBE_WUFC, 0); | |
5274 | } | |
5275 | ||
dd4d8ca6 DS |
5276 | if (wufc && hw->mac.type == ixgbe_mac_82599EB) |
5277 | pci_wake_from_d3(pdev, true); | |
5278 | else | |
5279 | pci_wake_from_d3(pdev, false); | |
b3c8b4ba | 5280 | |
9d8d05ae RW |
5281 | *enable_wake = !!wufc; |
5282 | ||
fa378134 AG |
5283 | ixgbe_clear_interrupt_scheme(adapter); |
5284 | ||
b3c8b4ba AD |
5285 | ixgbe_release_hw_control(adapter); |
5286 | ||
5287 | pci_disable_device(pdev); | |
5288 | ||
9d8d05ae RW |
5289 | return 0; |
5290 | } | |
5291 | ||
5292 | #ifdef CONFIG_PM | |
5293 | static int ixgbe_suspend(struct pci_dev *pdev, pm_message_t state) | |
5294 | { | |
5295 | int retval; | |
5296 | bool wake; | |
5297 | ||
5298 | retval = __ixgbe_shutdown(pdev, &wake); | |
5299 | if (retval) | |
5300 | return retval; | |
5301 | ||
5302 | if (wake) { | |
5303 | pci_prepare_to_sleep(pdev); | |
5304 | } else { | |
5305 | pci_wake_from_d3(pdev, false); | |
5306 | pci_set_power_state(pdev, PCI_D3hot); | |
5307 | } | |
b3c8b4ba AD |
5308 | |
5309 | return 0; | |
5310 | } | |
9d8d05ae | 5311 | #endif /* CONFIG_PM */ |
b3c8b4ba AD |
5312 | |
5313 | static void ixgbe_shutdown(struct pci_dev *pdev) | |
5314 | { | |
9d8d05ae RW |
5315 | bool wake; |
5316 | ||
5317 | __ixgbe_shutdown(pdev, &wake); | |
5318 | ||
5319 | if (system_state == SYSTEM_POWER_OFF) { | |
5320 | pci_wake_from_d3(pdev, wake); | |
5321 | pci_set_power_state(pdev, PCI_D3hot); | |
5322 | } | |
b3c8b4ba AD |
5323 | } |
5324 | ||
9a799d71 AK |
5325 | /** |
5326 | * ixgbe_update_stats - Update the board statistics counters. | |
5327 | * @adapter: board private structure | |
5328 | **/ | |
5329 | void ixgbe_update_stats(struct ixgbe_adapter *adapter) | |
5330 | { | |
2d86f139 | 5331 | struct net_device *netdev = adapter->netdev; |
9a799d71 | 5332 | struct ixgbe_hw *hw = &adapter->hw; |
6f11eef7 AV |
5333 | u64 total_mpc = 0; |
5334 | u32 i, missed_rx = 0, mpc, bprc, lxon, lxoff, xon_off_tot; | |
eb985f09 | 5335 | u64 non_eop_descs = 0, restart_queue = 0; |
9a799d71 | 5336 | |
d08935c2 DS |
5337 | if (test_bit(__IXGBE_DOWN, &adapter->state) || |
5338 | test_bit(__IXGBE_RESETTING, &adapter->state)) | |
5339 | return; | |
5340 | ||
94b982b2 | 5341 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) { |
f8212f97 | 5342 | u64 rsc_count = 0; |
94b982b2 | 5343 | u64 rsc_flush = 0; |
d51019a4 PW |
5344 | for (i = 0; i < 16; i++) |
5345 | adapter->hw_rx_no_dma_resources += | |
5346 | IXGBE_READ_REG(hw, IXGBE_QPRDC(i)); | |
94b982b2 | 5347 | for (i = 0; i < adapter->num_rx_queues; i++) { |
4a0b9ca0 PW |
5348 | rsc_count += adapter->rx_ring[i]->rsc_count; |
5349 | rsc_flush += adapter->rx_ring[i]->rsc_flush; | |
94b982b2 MC |
5350 | } |
5351 | adapter->rsc_total_count = rsc_count; | |
5352 | adapter->rsc_total_flush = rsc_flush; | |
d51019a4 PW |
5353 | } |
5354 | ||
7ca3bc58 JB |
5355 | /* gather some stats to the adapter struct that are per queue */ |
5356 | for (i = 0; i < adapter->num_tx_queues; i++) | |
4a0b9ca0 | 5357 | restart_queue += adapter->tx_ring[i]->restart_queue; |
eb985f09 | 5358 | adapter->restart_queue = restart_queue; |
7ca3bc58 JB |
5359 | |
5360 | for (i = 0; i < adapter->num_rx_queues; i++) | |
4a0b9ca0 | 5361 | non_eop_descs += adapter->rx_ring[i]->non_eop_descs; |
eb985f09 | 5362 | adapter->non_eop_descs = non_eop_descs; |
7ca3bc58 | 5363 | |
9a799d71 | 5364 | adapter->stats.crcerrs += IXGBE_READ_REG(hw, IXGBE_CRCERRS); |
6f11eef7 AV |
5365 | for (i = 0; i < 8; i++) { |
5366 | /* for packet buffers not used, the register should read 0 */ | |
5367 | mpc = IXGBE_READ_REG(hw, IXGBE_MPC(i)); | |
5368 | missed_rx += mpc; | |
5369 | adapter->stats.mpc[i] += mpc; | |
5370 | total_mpc += adapter->stats.mpc[i]; | |
e8e26350 PW |
5371 | if (hw->mac.type == ixgbe_mac_82598EB) |
5372 | adapter->stats.rnbc[i] += IXGBE_READ_REG(hw, IXGBE_RNBC(i)); | |
2f90b865 AD |
5373 | adapter->stats.qptc[i] += IXGBE_READ_REG(hw, IXGBE_QPTC(i)); |
5374 | adapter->stats.qbtc[i] += IXGBE_READ_REG(hw, IXGBE_QBTC(i)); | |
5375 | adapter->stats.qprc[i] += IXGBE_READ_REG(hw, IXGBE_QPRC(i)); | |
5376 | adapter->stats.qbrc[i] += IXGBE_READ_REG(hw, IXGBE_QBRC(i)); | |
e8e26350 PW |
5377 | if (hw->mac.type == ixgbe_mac_82599EB) { |
5378 | adapter->stats.pxonrxc[i] += IXGBE_READ_REG(hw, | |
5379 | IXGBE_PXONRXCNT(i)); | |
5380 | adapter->stats.pxoffrxc[i] += IXGBE_READ_REG(hw, | |
5381 | IXGBE_PXOFFRXCNT(i)); | |
5382 | adapter->stats.qprdc[i] += IXGBE_READ_REG(hw, IXGBE_QPRDC(i)); | |
e8e26350 PW |
5383 | } else { |
5384 | adapter->stats.pxonrxc[i] += IXGBE_READ_REG(hw, | |
5385 | IXGBE_PXONRXC(i)); | |
5386 | adapter->stats.pxoffrxc[i] += IXGBE_READ_REG(hw, | |
5387 | IXGBE_PXOFFRXC(i)); | |
5388 | } | |
2f90b865 AD |
5389 | adapter->stats.pxontxc[i] += IXGBE_READ_REG(hw, |
5390 | IXGBE_PXONTXC(i)); | |
2f90b865 | 5391 | adapter->stats.pxofftxc[i] += IXGBE_READ_REG(hw, |
e8e26350 | 5392 | IXGBE_PXOFFTXC(i)); |
6f11eef7 AV |
5393 | } |
5394 | adapter->stats.gprc += IXGBE_READ_REG(hw, IXGBE_GPRC); | |
5395 | /* work around hardware counting issue */ | |
5396 | adapter->stats.gprc -= missed_rx; | |
5397 | ||
5398 | /* 82598 hardware only has a 32 bit counter in the high register */ | |
e8e26350 | 5399 | if (hw->mac.type == ixgbe_mac_82599EB) { |
aad71918 | 5400 | u64 tmp; |
e8e26350 | 5401 | adapter->stats.gorc += IXGBE_READ_REG(hw, IXGBE_GORCL); |
aad71918 BG |
5402 | tmp = IXGBE_READ_REG(hw, IXGBE_GORCH) & 0xF; /* 4 high bits of GORC */ |
5403 | adapter->stats.gorc += (tmp << 32); | |
e8e26350 | 5404 | adapter->stats.gotc += IXGBE_READ_REG(hw, IXGBE_GOTCL); |
aad71918 BG |
5405 | tmp = IXGBE_READ_REG(hw, IXGBE_GOTCH) & 0xF; /* 4 high bits of GOTC */ |
5406 | adapter->stats.gotc += (tmp << 32); | |
e8e26350 PW |
5407 | adapter->stats.tor += IXGBE_READ_REG(hw, IXGBE_TORL); |
5408 | IXGBE_READ_REG(hw, IXGBE_TORH); /* to clear */ | |
5409 | adapter->stats.lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXCNT); | |
5410 | adapter->stats.lxoffrxc += IXGBE_READ_REG(hw, IXGBE_LXOFFRXCNT); | |
c4cf55e5 PWJ |
5411 | adapter->stats.fdirmatch += IXGBE_READ_REG(hw, IXGBE_FDIRMATCH); |
5412 | adapter->stats.fdirmiss += IXGBE_READ_REG(hw, IXGBE_FDIRMISS); | |
6d45522c YZ |
5413 | #ifdef IXGBE_FCOE |
5414 | adapter->stats.fccrc += IXGBE_READ_REG(hw, IXGBE_FCCRC); | |
5415 | adapter->stats.fcoerpdc += IXGBE_READ_REG(hw, IXGBE_FCOERPDC); | |
5416 | adapter->stats.fcoeprc += IXGBE_READ_REG(hw, IXGBE_FCOEPRC); | |
5417 | adapter->stats.fcoeptc += IXGBE_READ_REG(hw, IXGBE_FCOEPTC); | |
5418 | adapter->stats.fcoedwrc += IXGBE_READ_REG(hw, IXGBE_FCOEDWRC); | |
5419 | adapter->stats.fcoedwtc += IXGBE_READ_REG(hw, IXGBE_FCOEDWTC); | |
5420 | #endif /* IXGBE_FCOE */ | |
e8e26350 PW |
5421 | } else { |
5422 | adapter->stats.lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXC); | |
5423 | adapter->stats.lxoffrxc += IXGBE_READ_REG(hw, IXGBE_LXOFFRXC); | |
5424 | adapter->stats.gorc += IXGBE_READ_REG(hw, IXGBE_GORCH); | |
5425 | adapter->stats.gotc += IXGBE_READ_REG(hw, IXGBE_GOTCH); | |
5426 | adapter->stats.tor += IXGBE_READ_REG(hw, IXGBE_TORH); | |
5427 | } | |
9a799d71 AK |
5428 | bprc = IXGBE_READ_REG(hw, IXGBE_BPRC); |
5429 | adapter->stats.bprc += bprc; | |
5430 | adapter->stats.mprc += IXGBE_READ_REG(hw, IXGBE_MPRC); | |
e8e26350 PW |
5431 | if (hw->mac.type == ixgbe_mac_82598EB) |
5432 | adapter->stats.mprc -= bprc; | |
9a799d71 AK |
5433 | adapter->stats.roc += IXGBE_READ_REG(hw, IXGBE_ROC); |
5434 | adapter->stats.prc64 += IXGBE_READ_REG(hw, IXGBE_PRC64); | |
5435 | adapter->stats.prc127 += IXGBE_READ_REG(hw, IXGBE_PRC127); | |
5436 | adapter->stats.prc255 += IXGBE_READ_REG(hw, IXGBE_PRC255); | |
5437 | adapter->stats.prc511 += IXGBE_READ_REG(hw, IXGBE_PRC511); | |
5438 | adapter->stats.prc1023 += IXGBE_READ_REG(hw, IXGBE_PRC1023); | |
5439 | adapter->stats.prc1522 += IXGBE_READ_REG(hw, IXGBE_PRC1522); | |
9a799d71 | 5440 | adapter->stats.rlec += IXGBE_READ_REG(hw, IXGBE_RLEC); |
6f11eef7 AV |
5441 | lxon = IXGBE_READ_REG(hw, IXGBE_LXONTXC); |
5442 | adapter->stats.lxontxc += lxon; | |
5443 | lxoff = IXGBE_READ_REG(hw, IXGBE_LXOFFTXC); | |
5444 | adapter->stats.lxofftxc += lxoff; | |
9a799d71 AK |
5445 | adapter->stats.ruc += IXGBE_READ_REG(hw, IXGBE_RUC); |
5446 | adapter->stats.gptc += IXGBE_READ_REG(hw, IXGBE_GPTC); | |
6f11eef7 AV |
5447 | adapter->stats.mptc += IXGBE_READ_REG(hw, IXGBE_MPTC); |
5448 | /* | |
5449 | * 82598 errata - tx of flow control packets is included in tx counters | |
5450 | */ | |
5451 | xon_off_tot = lxon + lxoff; | |
5452 | adapter->stats.gptc -= xon_off_tot; | |
5453 | adapter->stats.mptc -= xon_off_tot; | |
5454 | adapter->stats.gotc -= (xon_off_tot * (ETH_ZLEN + ETH_FCS_LEN)); | |
9a799d71 AK |
5455 | adapter->stats.ruc += IXGBE_READ_REG(hw, IXGBE_RUC); |
5456 | adapter->stats.rfc += IXGBE_READ_REG(hw, IXGBE_RFC); | |
5457 | adapter->stats.rjc += IXGBE_READ_REG(hw, IXGBE_RJC); | |
9a799d71 AK |
5458 | adapter->stats.tpr += IXGBE_READ_REG(hw, IXGBE_TPR); |
5459 | adapter->stats.ptc64 += IXGBE_READ_REG(hw, IXGBE_PTC64); | |
6f11eef7 | 5460 | adapter->stats.ptc64 -= xon_off_tot; |
9a799d71 AK |
5461 | adapter->stats.ptc127 += IXGBE_READ_REG(hw, IXGBE_PTC127); |
5462 | adapter->stats.ptc255 += IXGBE_READ_REG(hw, IXGBE_PTC255); | |
5463 | adapter->stats.ptc511 += IXGBE_READ_REG(hw, IXGBE_PTC511); | |
5464 | adapter->stats.ptc1023 += IXGBE_READ_REG(hw, IXGBE_PTC1023); | |
5465 | adapter->stats.ptc1522 += IXGBE_READ_REG(hw, IXGBE_PTC1522); | |
9a799d71 AK |
5466 | adapter->stats.bptc += IXGBE_READ_REG(hw, IXGBE_BPTC); |
5467 | ||
5468 | /* Fill out the OS statistics structure */ | |
2d86f139 | 5469 | netdev->stats.multicast = adapter->stats.mprc; |
9a799d71 AK |
5470 | |
5471 | /* Rx Errors */ | |
2d86f139 | 5472 | netdev->stats.rx_errors = adapter->stats.crcerrs + |
b4617240 | 5473 | adapter->stats.rlec; |
2d86f139 AK |
5474 | netdev->stats.rx_dropped = 0; |
5475 | netdev->stats.rx_length_errors = adapter->stats.rlec; | |
5476 | netdev->stats.rx_crc_errors = adapter->stats.crcerrs; | |
5477 | netdev->stats.rx_missed_errors = total_mpc; | |
9a799d71 AK |
5478 | } |
5479 | ||
5480 | /** | |
5481 | * ixgbe_watchdog - Timer Call-back | |
5482 | * @data: pointer to adapter cast into an unsigned long | |
5483 | **/ | |
5484 | static void ixgbe_watchdog(unsigned long data) | |
5485 | { | |
5486 | struct ixgbe_adapter *adapter = (struct ixgbe_adapter *)data; | |
cf8280ee | 5487 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a AD |
5488 | u64 eics = 0; |
5489 | int i; | |
cf8280ee | 5490 | |
fe49f04a AD |
5491 | /* |
5492 | * Do the watchdog outside of interrupt context due to the lovely | |
5493 | * delays that some of the newer hardware requires | |
5494 | */ | |
22d5a71b | 5495 | |
fe49f04a AD |
5496 | if (test_bit(__IXGBE_DOWN, &adapter->state)) |
5497 | goto watchdog_short_circuit; | |
22d5a71b | 5498 | |
fe49f04a AD |
5499 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) { |
5500 | /* | |
5501 | * for legacy and MSI interrupts don't set any bits | |
5502 | * that are enabled for EIAM, because this operation | |
5503 | * would set *both* EIMS and EICS for any bit in EIAM | |
5504 | */ | |
5505 | IXGBE_WRITE_REG(hw, IXGBE_EICS, | |
5506 | (IXGBE_EICS_TCP_TIMER | IXGBE_EICS_OTHER)); | |
5507 | goto watchdog_reschedule; | |
5508 | } | |
5509 | ||
5510 | /* get one bit for every active tx/rx interrupt vector */ | |
5511 | for (i = 0; i < adapter->num_msix_vectors - NON_Q_VECTORS; i++) { | |
5512 | struct ixgbe_q_vector *qv = adapter->q_vector[i]; | |
5513 | if (qv->rxr_count || qv->txr_count) | |
5514 | eics |= ((u64)1 << i); | |
cf8280ee | 5515 | } |
9a799d71 | 5516 | |
fe49f04a AD |
5517 | /* Cause software interrupt to ensure rx rings are cleaned */ |
5518 | ixgbe_irq_rearm_queues(adapter, eics); | |
5519 | ||
5520 | watchdog_reschedule: | |
5521 | /* Reset the timer */ | |
5522 | mod_timer(&adapter->watchdog_timer, round_jiffies(jiffies + 2 * HZ)); | |
5523 | ||
5524 | watchdog_short_circuit: | |
cf8280ee JB |
5525 | schedule_work(&adapter->watchdog_task); |
5526 | } | |
5527 | ||
e8e26350 PW |
5528 | /** |
5529 | * ixgbe_multispeed_fiber_task - worker thread to configure multispeed fiber | |
5530 | * @work: pointer to work_struct containing our data | |
5531 | **/ | |
5532 | static void ixgbe_multispeed_fiber_task(struct work_struct *work) | |
5533 | { | |
5534 | struct ixgbe_adapter *adapter = container_of(work, | |
5535 | struct ixgbe_adapter, | |
5536 | multispeed_fiber_task); | |
5537 | struct ixgbe_hw *hw = &adapter->hw; | |
5538 | u32 autoneg; | |
8620a103 | 5539 | bool negotiation; |
e8e26350 PW |
5540 | |
5541 | adapter->flags |= IXGBE_FLAG_IN_SFP_LINK_TASK; | |
a1f25324 MC |
5542 | autoneg = hw->phy.autoneg_advertised; |
5543 | if ((!autoneg) && (hw->mac.ops.get_link_capabilities)) | |
8620a103 | 5544 | hw->mac.ops.get_link_capabilities(hw, &autoneg, &negotiation); |
1097cd17 | 5545 | hw->mac.autotry_restart = false; |
8620a103 MC |
5546 | if (hw->mac.ops.setup_link) |
5547 | hw->mac.ops.setup_link(hw, autoneg, negotiation, true); | |
e8e26350 PW |
5548 | adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; |
5549 | adapter->flags &= ~IXGBE_FLAG_IN_SFP_LINK_TASK; | |
5550 | } | |
5551 | ||
5552 | /** | |
5553 | * ixgbe_sfp_config_module_task - worker thread to configure a new SFP+ module | |
5554 | * @work: pointer to work_struct containing our data | |
5555 | **/ | |
5556 | static void ixgbe_sfp_config_module_task(struct work_struct *work) | |
5557 | { | |
5558 | struct ixgbe_adapter *adapter = container_of(work, | |
5559 | struct ixgbe_adapter, | |
5560 | sfp_config_module_task); | |
5561 | struct ixgbe_hw *hw = &adapter->hw; | |
5562 | u32 err; | |
5563 | ||
5564 | adapter->flags |= IXGBE_FLAG_IN_SFP_MOD_TASK; | |
63d6e1d8 DS |
5565 | |
5566 | /* Time for electrical oscillations to settle down */ | |
5567 | msleep(100); | |
e8e26350 | 5568 | err = hw->phy.ops.identify_sfp(hw); |
63d6e1d8 | 5569 | |
e8e26350 | 5570 | if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) { |
849c4542 ET |
5571 | e_dev_err("failed to initialize because an unsupported SFP+ " |
5572 | "module type was detected.\n"); | |
5573 | e_dev_err("Reload the driver after installing a supported " | |
5574 | "module.\n"); | |
63d6e1d8 | 5575 | unregister_netdev(adapter->netdev); |
e8e26350 PW |
5576 | return; |
5577 | } | |
5578 | hw->mac.ops.setup_sfp(hw); | |
5579 | ||
8d1c3c07 | 5580 | if (!(adapter->flags & IXGBE_FLAG_IN_SFP_LINK_TASK)) |
e8e26350 PW |
5581 | /* This will also work for DA Twinax connections */ |
5582 | schedule_work(&adapter->multispeed_fiber_task); | |
5583 | adapter->flags &= ~IXGBE_FLAG_IN_SFP_MOD_TASK; | |
5584 | } | |
5585 | ||
c4cf55e5 PWJ |
5586 | /** |
5587 | * ixgbe_fdir_reinit_task - worker thread to reinit FDIR filter table | |
5588 | * @work: pointer to work_struct containing our data | |
5589 | **/ | |
5590 | static void ixgbe_fdir_reinit_task(struct work_struct *work) | |
5591 | { | |
5592 | struct ixgbe_adapter *adapter = container_of(work, | |
5593 | struct ixgbe_adapter, | |
5594 | fdir_reinit_task); | |
5595 | struct ixgbe_hw *hw = &adapter->hw; | |
5596 | int i; | |
5597 | ||
5598 | if (ixgbe_reinit_fdir_tables_82599(hw) == 0) { | |
5599 | for (i = 0; i < adapter->num_tx_queues; i++) | |
5600 | set_bit(__IXGBE_FDIR_INIT_DONE, | |
4a0b9ca0 | 5601 | &(adapter->tx_ring[i]->reinit_state)); |
c4cf55e5 | 5602 | } else { |
396e799c | 5603 | e_err(probe, "failed to finish FDIR re-initialization, " |
849c4542 | 5604 | "ignored adding FDIR ATR filters\n"); |
c4cf55e5 PWJ |
5605 | } |
5606 | /* Done FDIR Re-initialization, enable transmits */ | |
5607 | netif_tx_start_all_queues(adapter->netdev); | |
5608 | } | |
5609 | ||
10eec955 JF |
5610 | static DEFINE_MUTEX(ixgbe_watchdog_lock); |
5611 | ||
cf8280ee | 5612 | /** |
69888674 AD |
5613 | * ixgbe_watchdog_task - worker thread to bring link up |
5614 | * @work: pointer to work_struct containing our data | |
cf8280ee JB |
5615 | **/ |
5616 | static void ixgbe_watchdog_task(struct work_struct *work) | |
5617 | { | |
5618 | struct ixgbe_adapter *adapter = container_of(work, | |
5619 | struct ixgbe_adapter, | |
5620 | watchdog_task); | |
5621 | struct net_device *netdev = adapter->netdev; | |
5622 | struct ixgbe_hw *hw = &adapter->hw; | |
10eec955 JF |
5623 | u32 link_speed; |
5624 | bool link_up; | |
bc59fcda NS |
5625 | int i; |
5626 | struct ixgbe_ring *tx_ring; | |
5627 | int some_tx_pending = 0; | |
cf8280ee | 5628 | |
10eec955 JF |
5629 | mutex_lock(&ixgbe_watchdog_lock); |
5630 | ||
5631 | link_up = adapter->link_up; | |
5632 | link_speed = adapter->link_speed; | |
cf8280ee JB |
5633 | |
5634 | if (adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE) { | |
5635 | hw->mac.ops.check_link(hw, &link_speed, &link_up, false); | |
264857b8 PWJ |
5636 | if (link_up) { |
5637 | #ifdef CONFIG_DCB | |
5638 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { | |
5639 | for (i = 0; i < MAX_TRAFFIC_CLASS; i++) | |
620fa036 | 5640 | hw->mac.ops.fc_enable(hw, i); |
264857b8 | 5641 | } else { |
620fa036 | 5642 | hw->mac.ops.fc_enable(hw, 0); |
264857b8 PWJ |
5643 | } |
5644 | #else | |
620fa036 | 5645 | hw->mac.ops.fc_enable(hw, 0); |
264857b8 PWJ |
5646 | #endif |
5647 | } | |
5648 | ||
cf8280ee JB |
5649 | if (link_up || |
5650 | time_after(jiffies, (adapter->link_check_timeout + | |
5651 | IXGBE_TRY_LINK_TIMEOUT))) { | |
cf8280ee | 5652 | adapter->flags &= ~IXGBE_FLAG_NEED_LINK_UPDATE; |
264857b8 | 5653 | IXGBE_WRITE_REG(hw, IXGBE_EIMS, IXGBE_EIMC_LSC); |
cf8280ee JB |
5654 | } |
5655 | adapter->link_up = link_up; | |
5656 | adapter->link_speed = link_speed; | |
5657 | } | |
9a799d71 AK |
5658 | |
5659 | if (link_up) { | |
5660 | if (!netif_carrier_ok(netdev)) { | |
e8e26350 PW |
5661 | bool flow_rx, flow_tx; |
5662 | ||
5663 | if (hw->mac.type == ixgbe_mac_82599EB) { | |
5664 | u32 mflcn = IXGBE_READ_REG(hw, IXGBE_MFLCN); | |
5665 | u32 fccfg = IXGBE_READ_REG(hw, IXGBE_FCCFG); | |
078788b6 PWJ |
5666 | flow_rx = !!(mflcn & IXGBE_MFLCN_RFCE); |
5667 | flow_tx = !!(fccfg & IXGBE_FCCFG_TFCE_802_3X); | |
e8e26350 PW |
5668 | } else { |
5669 | u32 frctl = IXGBE_READ_REG(hw, IXGBE_FCTRL); | |
5670 | u32 rmcs = IXGBE_READ_REG(hw, IXGBE_RMCS); | |
078788b6 PWJ |
5671 | flow_rx = !!(frctl & IXGBE_FCTRL_RFCE); |
5672 | flow_tx = !!(rmcs & IXGBE_RMCS_TFCE_802_3X); | |
e8e26350 PW |
5673 | } |
5674 | ||
396e799c | 5675 | e_info(drv, "NIC Link is Up %s, Flow Control: %s\n", |
a46e534b | 5676 | (link_speed == IXGBE_LINK_SPEED_10GB_FULL ? |
849c4542 ET |
5677 | "10 Gbps" : |
5678 | (link_speed == IXGBE_LINK_SPEED_1GB_FULL ? | |
5679 | "1 Gbps" : "unknown speed")), | |
e8e26350 | 5680 | ((flow_rx && flow_tx) ? "RX/TX" : |
849c4542 ET |
5681 | (flow_rx ? "RX" : |
5682 | (flow_tx ? "TX" : "None")))); | |
9a799d71 AK |
5683 | |
5684 | netif_carrier_on(netdev); | |
9a799d71 AK |
5685 | } else { |
5686 | /* Force detection of hung controller */ | |
5687 | adapter->detect_tx_hung = true; | |
5688 | } | |
5689 | } else { | |
cf8280ee JB |
5690 | adapter->link_up = false; |
5691 | adapter->link_speed = 0; | |
9a799d71 | 5692 | if (netif_carrier_ok(netdev)) { |
396e799c | 5693 | e_info(drv, "NIC Link is Down\n"); |
9a799d71 | 5694 | netif_carrier_off(netdev); |
9a799d71 AK |
5695 | } |
5696 | } | |
5697 | ||
bc59fcda NS |
5698 | if (!netif_carrier_ok(netdev)) { |
5699 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
4a0b9ca0 | 5700 | tx_ring = adapter->tx_ring[i]; |
bc59fcda NS |
5701 | if (tx_ring->next_to_use != tx_ring->next_to_clean) { |
5702 | some_tx_pending = 1; | |
5703 | break; | |
5704 | } | |
5705 | } | |
5706 | ||
5707 | if (some_tx_pending) { | |
5708 | /* We've lost link, so the controller stops DMA, | |
5709 | * but we've got queued Tx work that's never going | |
5710 | * to get done, so reset controller to flush Tx. | |
5711 | * (Do the reset outside of interrupt context). | |
5712 | */ | |
5713 | schedule_work(&adapter->reset_task); | |
5714 | } | |
5715 | } | |
5716 | ||
9a799d71 | 5717 | ixgbe_update_stats(adapter); |
10eec955 | 5718 | mutex_unlock(&ixgbe_watchdog_lock); |
9a799d71 AK |
5719 | } |
5720 | ||
9a799d71 | 5721 | static int ixgbe_tso(struct ixgbe_adapter *adapter, |
b4617240 PW |
5722 | struct ixgbe_ring *tx_ring, struct sk_buff *skb, |
5723 | u32 tx_flags, u8 *hdr_len) | |
9a799d71 AK |
5724 | { |
5725 | struct ixgbe_adv_tx_context_desc *context_desc; | |
5726 | unsigned int i; | |
5727 | int err; | |
5728 | struct ixgbe_tx_buffer *tx_buffer_info; | |
9f8cdf4f JB |
5729 | u32 vlan_macip_lens = 0, type_tucmd_mlhl; |
5730 | u32 mss_l4len_idx, l4len; | |
9a799d71 AK |
5731 | |
5732 | if (skb_is_gso(skb)) { | |
5733 | if (skb_header_cloned(skb)) { | |
5734 | err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC); | |
5735 | if (err) | |
5736 | return err; | |
5737 | } | |
5738 | l4len = tcp_hdrlen(skb); | |
5739 | *hdr_len += l4len; | |
5740 | ||
8327d000 | 5741 | if (skb->protocol == htons(ETH_P_IP)) { |
9a799d71 AK |
5742 | struct iphdr *iph = ip_hdr(skb); |
5743 | iph->tot_len = 0; | |
5744 | iph->check = 0; | |
5745 | tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, | |
b4617240 PW |
5746 | iph->daddr, 0, |
5747 | IPPROTO_TCP, | |
5748 | 0); | |
8e1e8a47 | 5749 | } else if (skb_is_gso_v6(skb)) { |
9a799d71 AK |
5750 | ipv6_hdr(skb)->payload_len = 0; |
5751 | tcp_hdr(skb)->check = | |
5752 | ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, | |
b4617240 PW |
5753 | &ipv6_hdr(skb)->daddr, |
5754 | 0, IPPROTO_TCP, 0); | |
9a799d71 AK |
5755 | } |
5756 | ||
5757 | i = tx_ring->next_to_use; | |
5758 | ||
5759 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; | |
5760 | context_desc = IXGBE_TX_CTXTDESC_ADV(*tx_ring, i); | |
5761 | ||
5762 | /* VLAN MACLEN IPLEN */ | |
5763 | if (tx_flags & IXGBE_TX_FLAGS_VLAN) | |
5764 | vlan_macip_lens |= | |
5765 | (tx_flags & IXGBE_TX_FLAGS_VLAN_MASK); | |
5766 | vlan_macip_lens |= ((skb_network_offset(skb)) << | |
b4617240 | 5767 | IXGBE_ADVTXD_MACLEN_SHIFT); |
9a799d71 AK |
5768 | *hdr_len += skb_network_offset(skb); |
5769 | vlan_macip_lens |= | |
5770 | (skb_transport_header(skb) - skb_network_header(skb)); | |
5771 | *hdr_len += | |
5772 | (skb_transport_header(skb) - skb_network_header(skb)); | |
5773 | context_desc->vlan_macip_lens = cpu_to_le32(vlan_macip_lens); | |
5774 | context_desc->seqnum_seed = 0; | |
5775 | ||
5776 | /* ADV DTYP TUCMD MKRLOC/ISCSIHEDLEN */ | |
9f8cdf4f | 5777 | type_tucmd_mlhl = (IXGBE_TXD_CMD_DEXT | |
b4617240 | 5778 | IXGBE_ADVTXD_DTYP_CTXT); |
9a799d71 | 5779 | |
8327d000 | 5780 | if (skb->protocol == htons(ETH_P_IP)) |
9a799d71 AK |
5781 | type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_IPV4; |
5782 | type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_L4T_TCP; | |
5783 | context_desc->type_tucmd_mlhl = cpu_to_le32(type_tucmd_mlhl); | |
5784 | ||
5785 | /* MSS L4LEN IDX */ | |
9f8cdf4f | 5786 | mss_l4len_idx = |
9a799d71 AK |
5787 | (skb_shinfo(skb)->gso_size << IXGBE_ADVTXD_MSS_SHIFT); |
5788 | mss_l4len_idx |= (l4len << IXGBE_ADVTXD_L4LEN_SHIFT); | |
4eeae6fd PW |
5789 | /* use index 1 for TSO */ |
5790 | mss_l4len_idx |= (1 << IXGBE_ADVTXD_IDX_SHIFT); | |
9a799d71 AK |
5791 | context_desc->mss_l4len_idx = cpu_to_le32(mss_l4len_idx); |
5792 | ||
5793 | tx_buffer_info->time_stamp = jiffies; | |
5794 | tx_buffer_info->next_to_watch = i; | |
5795 | ||
5796 | i++; | |
5797 | if (i == tx_ring->count) | |
5798 | i = 0; | |
5799 | tx_ring->next_to_use = i; | |
5800 | ||
5801 | return true; | |
5802 | } | |
5803 | return false; | |
5804 | } | |
5805 | ||
5806 | static bool ixgbe_tx_csum(struct ixgbe_adapter *adapter, | |
b4617240 PW |
5807 | struct ixgbe_ring *tx_ring, |
5808 | struct sk_buff *skb, u32 tx_flags) | |
9a799d71 AK |
5809 | { |
5810 | struct ixgbe_adv_tx_context_desc *context_desc; | |
5811 | unsigned int i; | |
5812 | struct ixgbe_tx_buffer *tx_buffer_info; | |
5813 | u32 vlan_macip_lens = 0, type_tucmd_mlhl = 0; | |
5814 | ||
5815 | if (skb->ip_summed == CHECKSUM_PARTIAL || | |
5816 | (tx_flags & IXGBE_TX_FLAGS_VLAN)) { | |
5817 | i = tx_ring->next_to_use; | |
5818 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; | |
5819 | context_desc = IXGBE_TX_CTXTDESC_ADV(*tx_ring, i); | |
5820 | ||
5821 | if (tx_flags & IXGBE_TX_FLAGS_VLAN) | |
5822 | vlan_macip_lens |= | |
5823 | (tx_flags & IXGBE_TX_FLAGS_VLAN_MASK); | |
5824 | vlan_macip_lens |= (skb_network_offset(skb) << | |
b4617240 | 5825 | IXGBE_ADVTXD_MACLEN_SHIFT); |
9a799d71 AK |
5826 | if (skb->ip_summed == CHECKSUM_PARTIAL) |
5827 | vlan_macip_lens |= (skb_transport_header(skb) - | |
b4617240 | 5828 | skb_network_header(skb)); |
9a799d71 AK |
5829 | |
5830 | context_desc->vlan_macip_lens = cpu_to_le32(vlan_macip_lens); | |
5831 | context_desc->seqnum_seed = 0; | |
5832 | ||
5833 | type_tucmd_mlhl |= (IXGBE_TXD_CMD_DEXT | | |
b4617240 | 5834 | IXGBE_ADVTXD_DTYP_CTXT); |
9a799d71 AK |
5835 | |
5836 | if (skb->ip_summed == CHECKSUM_PARTIAL) { | |
ca553980 GS |
5837 | __be16 protocol; |
5838 | ||
5839 | if (skb->protocol == cpu_to_be16(ETH_P_8021Q)) { | |
5840 | const struct vlan_ethhdr *vhdr = | |
5841 | (const struct vlan_ethhdr *)skb->data; | |
5842 | ||
5843 | protocol = vhdr->h_vlan_encapsulated_proto; | |
5844 | } else { | |
5845 | protocol = skb->protocol; | |
5846 | } | |
5847 | ||
5848 | switch (protocol) { | |
09640e63 | 5849 | case cpu_to_be16(ETH_P_IP): |
9a799d71 | 5850 | type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_IPV4; |
41825d71 AK |
5851 | if (ip_hdr(skb)->protocol == IPPROTO_TCP) |
5852 | type_tucmd_mlhl |= | |
b4617240 | 5853 | IXGBE_ADVTXD_TUCMD_L4T_TCP; |
45a5ead0 JB |
5854 | else if (ip_hdr(skb)->protocol == IPPROTO_SCTP) |
5855 | type_tucmd_mlhl |= | |
5856 | IXGBE_ADVTXD_TUCMD_L4T_SCTP; | |
41825d71 | 5857 | break; |
09640e63 | 5858 | case cpu_to_be16(ETH_P_IPV6): |
41825d71 AK |
5859 | /* XXX what about other V6 headers?? */ |
5860 | if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP) | |
5861 | type_tucmd_mlhl |= | |
b4617240 | 5862 | IXGBE_ADVTXD_TUCMD_L4T_TCP; |
45a5ead0 JB |
5863 | else if (ipv6_hdr(skb)->nexthdr == IPPROTO_SCTP) |
5864 | type_tucmd_mlhl |= | |
5865 | IXGBE_ADVTXD_TUCMD_L4T_SCTP; | |
41825d71 | 5866 | break; |
41825d71 AK |
5867 | default: |
5868 | if (unlikely(net_ratelimit())) { | |
396e799c ET |
5869 | e_warn(probe, "partial checksum " |
5870 | "but proto=%x!\n", | |
5871 | skb->protocol); | |
41825d71 AK |
5872 | } |
5873 | break; | |
5874 | } | |
9a799d71 AK |
5875 | } |
5876 | ||
5877 | context_desc->type_tucmd_mlhl = cpu_to_le32(type_tucmd_mlhl); | |
4eeae6fd | 5878 | /* use index zero for tx checksum offload */ |
9a799d71 AK |
5879 | context_desc->mss_l4len_idx = 0; |
5880 | ||
5881 | tx_buffer_info->time_stamp = jiffies; | |
5882 | tx_buffer_info->next_to_watch = i; | |
9f8cdf4f | 5883 | |
9a799d71 AK |
5884 | i++; |
5885 | if (i == tx_ring->count) | |
5886 | i = 0; | |
5887 | tx_ring->next_to_use = i; | |
5888 | ||
5889 | return true; | |
5890 | } | |
9f8cdf4f | 5891 | |
9a799d71 AK |
5892 | return false; |
5893 | } | |
5894 | ||
5895 | static int ixgbe_tx_map(struct ixgbe_adapter *adapter, | |
b4617240 | 5896 | struct ixgbe_ring *tx_ring, |
eacd73f7 YZ |
5897 | struct sk_buff *skb, u32 tx_flags, |
5898 | unsigned int first) | |
9a799d71 | 5899 | { |
e5a43549 | 5900 | struct pci_dev *pdev = adapter->pdev; |
9a799d71 | 5901 | struct ixgbe_tx_buffer *tx_buffer_info; |
eacd73f7 YZ |
5902 | unsigned int len; |
5903 | unsigned int total = skb->len; | |
9a799d71 AK |
5904 | unsigned int offset = 0, size, count = 0, i; |
5905 | unsigned int nr_frags = skb_shinfo(skb)->nr_frags; | |
5906 | unsigned int f; | |
9a799d71 AK |
5907 | |
5908 | i = tx_ring->next_to_use; | |
5909 | ||
eacd73f7 YZ |
5910 | if (tx_flags & IXGBE_TX_FLAGS_FCOE) |
5911 | /* excluding fcoe_crc_eof for FCoE */ | |
5912 | total -= sizeof(struct fcoe_crc_eof); | |
5913 | ||
5914 | len = min(skb_headlen(skb), total); | |
9a799d71 AK |
5915 | while (len) { |
5916 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; | |
5917 | size = min(len, (uint)IXGBE_MAX_DATA_PER_TXD); | |
5918 | ||
5919 | tx_buffer_info->length = size; | |
e5a43549 | 5920 | tx_buffer_info->mapped_as_page = false; |
1b507730 | 5921 | tx_buffer_info->dma = dma_map_single(&pdev->dev, |
e5a43549 | 5922 | skb->data + offset, |
1b507730 NN |
5923 | size, DMA_TO_DEVICE); |
5924 | if (dma_mapping_error(&pdev->dev, tx_buffer_info->dma)) | |
e5a43549 | 5925 | goto dma_error; |
9a799d71 AK |
5926 | tx_buffer_info->time_stamp = jiffies; |
5927 | tx_buffer_info->next_to_watch = i; | |
5928 | ||
5929 | len -= size; | |
eacd73f7 | 5930 | total -= size; |
9a799d71 AK |
5931 | offset += size; |
5932 | count++; | |
44df32c5 AD |
5933 | |
5934 | if (len) { | |
5935 | i++; | |
5936 | if (i == tx_ring->count) | |
5937 | i = 0; | |
5938 | } | |
9a799d71 AK |
5939 | } |
5940 | ||
5941 | for (f = 0; f < nr_frags; f++) { | |
5942 | struct skb_frag_struct *frag; | |
5943 | ||
5944 | frag = &skb_shinfo(skb)->frags[f]; | |
eacd73f7 | 5945 | len = min((unsigned int)frag->size, total); |
e5a43549 | 5946 | offset = frag->page_offset; |
9a799d71 AK |
5947 | |
5948 | while (len) { | |
44df32c5 AD |
5949 | i++; |
5950 | if (i == tx_ring->count) | |
5951 | i = 0; | |
5952 | ||
9a799d71 AK |
5953 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; |
5954 | size = min(len, (uint)IXGBE_MAX_DATA_PER_TXD); | |
5955 | ||
5956 | tx_buffer_info->length = size; | |
1b507730 | 5957 | tx_buffer_info->dma = dma_map_page(&adapter->pdev->dev, |
e5a43549 AD |
5958 | frag->page, |
5959 | offset, size, | |
1b507730 | 5960 | DMA_TO_DEVICE); |
e5a43549 | 5961 | tx_buffer_info->mapped_as_page = true; |
1b507730 | 5962 | if (dma_mapping_error(&pdev->dev, tx_buffer_info->dma)) |
e5a43549 | 5963 | goto dma_error; |
9a799d71 AK |
5964 | tx_buffer_info->time_stamp = jiffies; |
5965 | tx_buffer_info->next_to_watch = i; | |
5966 | ||
5967 | len -= size; | |
eacd73f7 | 5968 | total -= size; |
9a799d71 AK |
5969 | offset += size; |
5970 | count++; | |
9a799d71 | 5971 | } |
eacd73f7 YZ |
5972 | if (total == 0) |
5973 | break; | |
9a799d71 | 5974 | } |
44df32c5 | 5975 | |
9a799d71 AK |
5976 | tx_ring->tx_buffer_info[i].skb = skb; |
5977 | tx_ring->tx_buffer_info[first].next_to_watch = i; | |
5978 | ||
e5a43549 AD |
5979 | return count; |
5980 | ||
5981 | dma_error: | |
849c4542 | 5982 | e_dev_err("TX DMA map failed\n"); |
e5a43549 AD |
5983 | |
5984 | /* clear timestamp and dma mappings for failed tx_buffer_info map */ | |
5985 | tx_buffer_info->dma = 0; | |
5986 | tx_buffer_info->time_stamp = 0; | |
5987 | tx_buffer_info->next_to_watch = 0; | |
c1fa347f RK |
5988 | if (count) |
5989 | count--; | |
e5a43549 AD |
5990 | |
5991 | /* clear timestamp and dma mappings for remaining portion of packet */ | |
c1fa347f RK |
5992 | while (count--) { |
5993 | if (i==0) | |
e5a43549 | 5994 | i += tx_ring->count; |
c1fa347f | 5995 | i--; |
e5a43549 AD |
5996 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; |
5997 | ixgbe_unmap_and_free_tx_resource(adapter, tx_buffer_info); | |
5998 | } | |
5999 | ||
e44d38e1 | 6000 | return 0; |
9a799d71 AK |
6001 | } |
6002 | ||
6003 | static void ixgbe_tx_queue(struct ixgbe_adapter *adapter, | |
b4617240 PW |
6004 | struct ixgbe_ring *tx_ring, |
6005 | int tx_flags, int count, u32 paylen, u8 hdr_len) | |
9a799d71 AK |
6006 | { |
6007 | union ixgbe_adv_tx_desc *tx_desc = NULL; | |
6008 | struct ixgbe_tx_buffer *tx_buffer_info; | |
6009 | u32 olinfo_status = 0, cmd_type_len = 0; | |
6010 | unsigned int i; | |
6011 | u32 txd_cmd = IXGBE_TXD_CMD_EOP | IXGBE_TXD_CMD_RS | IXGBE_TXD_CMD_IFCS; | |
6012 | ||
6013 | cmd_type_len |= IXGBE_ADVTXD_DTYP_DATA; | |
6014 | ||
6015 | cmd_type_len |= IXGBE_ADVTXD_DCMD_IFCS | IXGBE_ADVTXD_DCMD_DEXT; | |
6016 | ||
6017 | if (tx_flags & IXGBE_TX_FLAGS_VLAN) | |
6018 | cmd_type_len |= IXGBE_ADVTXD_DCMD_VLE; | |
6019 | ||
6020 | if (tx_flags & IXGBE_TX_FLAGS_TSO) { | |
6021 | cmd_type_len |= IXGBE_ADVTXD_DCMD_TSE; | |
6022 | ||
6023 | olinfo_status |= IXGBE_TXD_POPTS_TXSM << | |
b4617240 | 6024 | IXGBE_ADVTXD_POPTS_SHIFT; |
9a799d71 | 6025 | |
4eeae6fd PW |
6026 | /* use index 1 context for tso */ |
6027 | olinfo_status |= (1 << IXGBE_ADVTXD_IDX_SHIFT); | |
9a799d71 AK |
6028 | if (tx_flags & IXGBE_TX_FLAGS_IPV4) |
6029 | olinfo_status |= IXGBE_TXD_POPTS_IXSM << | |
b4617240 | 6030 | IXGBE_ADVTXD_POPTS_SHIFT; |
9a799d71 AK |
6031 | |
6032 | } else if (tx_flags & IXGBE_TX_FLAGS_CSUM) | |
6033 | olinfo_status |= IXGBE_TXD_POPTS_TXSM << | |
b4617240 | 6034 | IXGBE_ADVTXD_POPTS_SHIFT; |
9a799d71 | 6035 | |
eacd73f7 YZ |
6036 | if (tx_flags & IXGBE_TX_FLAGS_FCOE) { |
6037 | olinfo_status |= IXGBE_ADVTXD_CC; | |
6038 | olinfo_status |= (1 << IXGBE_ADVTXD_IDX_SHIFT); | |
6039 | if (tx_flags & IXGBE_TX_FLAGS_FSO) | |
6040 | cmd_type_len |= IXGBE_ADVTXD_DCMD_TSE; | |
6041 | } | |
6042 | ||
9a799d71 AK |
6043 | olinfo_status |= ((paylen - hdr_len) << IXGBE_ADVTXD_PAYLEN_SHIFT); |
6044 | ||
6045 | i = tx_ring->next_to_use; | |
6046 | while (count--) { | |
6047 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; | |
6048 | tx_desc = IXGBE_TX_DESC_ADV(*tx_ring, i); | |
6049 | tx_desc->read.buffer_addr = cpu_to_le64(tx_buffer_info->dma); | |
6050 | tx_desc->read.cmd_type_len = | |
b4617240 | 6051 | cpu_to_le32(cmd_type_len | tx_buffer_info->length); |
9a799d71 | 6052 | tx_desc->read.olinfo_status = cpu_to_le32(olinfo_status); |
9a799d71 AK |
6053 | i++; |
6054 | if (i == tx_ring->count) | |
6055 | i = 0; | |
6056 | } | |
6057 | ||
6058 | tx_desc->read.cmd_type_len |= cpu_to_le32(txd_cmd); | |
6059 | ||
6060 | /* | |
6061 | * Force memory writes to complete before letting h/w | |
6062 | * know there are new descriptors to fetch. (Only | |
6063 | * applicable for weak-ordered memory model archs, | |
6064 | * such as IA-64). | |
6065 | */ | |
6066 | wmb(); | |
6067 | ||
6068 | tx_ring->next_to_use = i; | |
6069 | writel(i, adapter->hw.hw_addr + tx_ring->tail); | |
6070 | } | |
6071 | ||
c4cf55e5 PWJ |
6072 | static void ixgbe_atr(struct ixgbe_adapter *adapter, struct sk_buff *skb, |
6073 | int queue, u32 tx_flags) | |
6074 | { | |
c4cf55e5 PWJ |
6075 | struct ixgbe_atr_input atr_input; |
6076 | struct tcphdr *th; | |
c4cf55e5 PWJ |
6077 | struct iphdr *iph = ip_hdr(skb); |
6078 | struct ethhdr *eth = (struct ethhdr *)skb->data; | |
6079 | u16 vlan_id, src_port, dst_port, flex_bytes; | |
6080 | u32 src_ipv4_addr, dst_ipv4_addr; | |
6081 | u8 l4type = 0; | |
6082 | ||
d3ead241 GG |
6083 | /* Right now, we support IPv4 only */ |
6084 | if (skb->protocol != htons(ETH_P_IP)) | |
6085 | return; | |
c4cf55e5 PWJ |
6086 | /* check if we're UDP or TCP */ |
6087 | if (iph->protocol == IPPROTO_TCP) { | |
6088 | th = tcp_hdr(skb); | |
6089 | src_port = th->source; | |
6090 | dst_port = th->dest; | |
6091 | l4type |= IXGBE_ATR_L4TYPE_TCP; | |
6092 | /* l4type IPv4 type is 0, no need to assign */ | |
c4cf55e5 PWJ |
6093 | } else { |
6094 | /* Unsupported L4 header, just bail here */ | |
6095 | return; | |
6096 | } | |
6097 | ||
6098 | memset(&atr_input, 0, sizeof(struct ixgbe_atr_input)); | |
6099 | ||
6100 | vlan_id = (tx_flags & IXGBE_TX_FLAGS_VLAN_MASK) >> | |
6101 | IXGBE_TX_FLAGS_VLAN_SHIFT; | |
6102 | src_ipv4_addr = iph->saddr; | |
6103 | dst_ipv4_addr = iph->daddr; | |
6104 | flex_bytes = eth->h_proto; | |
6105 | ||
6106 | ixgbe_atr_set_vlan_id_82599(&atr_input, vlan_id); | |
6107 | ixgbe_atr_set_src_port_82599(&atr_input, dst_port); | |
6108 | ixgbe_atr_set_dst_port_82599(&atr_input, src_port); | |
6109 | ixgbe_atr_set_flex_byte_82599(&atr_input, flex_bytes); | |
6110 | ixgbe_atr_set_l4type_82599(&atr_input, l4type); | |
6111 | /* src and dst are inverted, think how the receiver sees them */ | |
6112 | ixgbe_atr_set_src_ipv4_82599(&atr_input, dst_ipv4_addr); | |
6113 | ixgbe_atr_set_dst_ipv4_82599(&atr_input, src_ipv4_addr); | |
6114 | ||
6115 | /* This assumes the Rx queue and Tx queue are bound to the same CPU */ | |
6116 | ixgbe_fdir_add_signature_filter_82599(&adapter->hw, &atr_input, queue); | |
6117 | } | |
6118 | ||
e092be60 | 6119 | static int __ixgbe_maybe_stop_tx(struct net_device *netdev, |
b4617240 | 6120 | struct ixgbe_ring *tx_ring, int size) |
e092be60 | 6121 | { |
30eba97a | 6122 | netif_stop_subqueue(netdev, tx_ring->queue_index); |
e092be60 AV |
6123 | /* Herbert's original patch had: |
6124 | * smp_mb__after_netif_stop_queue(); | |
6125 | * but since that doesn't exist yet, just open code it. */ | |
6126 | smp_mb(); | |
6127 | ||
6128 | /* We need to check again in a case another CPU has just | |
6129 | * made room available. */ | |
6130 | if (likely(IXGBE_DESC_UNUSED(tx_ring) < size)) | |
6131 | return -EBUSY; | |
6132 | ||
6133 | /* A reprieve! - use start_queue because it doesn't call schedule */ | |
af72166f | 6134 | netif_start_subqueue(netdev, tx_ring->queue_index); |
7ca3bc58 | 6135 | ++tx_ring->restart_queue; |
e092be60 AV |
6136 | return 0; |
6137 | } | |
6138 | ||
6139 | static int ixgbe_maybe_stop_tx(struct net_device *netdev, | |
b4617240 | 6140 | struct ixgbe_ring *tx_ring, int size) |
e092be60 AV |
6141 | { |
6142 | if (likely(IXGBE_DESC_UNUSED(tx_ring) >= size)) | |
6143 | return 0; | |
6144 | return __ixgbe_maybe_stop_tx(netdev, tx_ring, size); | |
6145 | } | |
6146 | ||
09a3b1f8 SH |
6147 | static u16 ixgbe_select_queue(struct net_device *dev, struct sk_buff *skb) |
6148 | { | |
6149 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
5f715823 | 6150 | int txq = smp_processor_id(); |
09a3b1f8 | 6151 | |
fdd3d631 KK |
6152 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { |
6153 | while (unlikely(txq >= dev->real_num_tx_queues)) | |
6154 | txq -= dev->real_num_tx_queues; | |
5f715823 | 6155 | return txq; |
fdd3d631 | 6156 | } |
c4cf55e5 | 6157 | |
5f715823 YZ |
6158 | #ifdef IXGBE_FCOE |
6159 | if ((adapter->flags & IXGBE_FLAG_FCOE_ENABLED) && | |
ca77cd59 RL |
6160 | ((skb->protocol == htons(ETH_P_FCOE)) || |
6161 | (skb->protocol == htons(ETH_P_FIP)))) { | |
5f715823 YZ |
6162 | txq &= (adapter->ring_feature[RING_F_FCOE].indices - 1); |
6163 | txq += adapter->ring_feature[RING_F_FCOE].mask; | |
6164 | return txq; | |
6165 | } | |
6166 | #endif | |
2ea186ae JF |
6167 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { |
6168 | if (skb->priority == TC_PRIO_CONTROL) | |
6169 | txq = adapter->ring_feature[RING_F_DCB].indices-1; | |
6170 | else | |
6171 | txq = (skb->vlan_tci & IXGBE_TX_FLAGS_VLAN_PRIO_MASK) | |
6172 | >> 13; | |
6173 | return txq; | |
6174 | } | |
09a3b1f8 SH |
6175 | |
6176 | return skb_tx_hash(dev, skb); | |
6177 | } | |
6178 | ||
3b29a56d SH |
6179 | static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb, |
6180 | struct net_device *netdev) | |
9a799d71 AK |
6181 | { |
6182 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
6183 | struct ixgbe_ring *tx_ring; | |
60d51134 | 6184 | struct netdev_queue *txq; |
9a799d71 AK |
6185 | unsigned int first; |
6186 | unsigned int tx_flags = 0; | |
30eba97a | 6187 | u8 hdr_len = 0; |
5f715823 | 6188 | int tso; |
9a799d71 AK |
6189 | int count = 0; |
6190 | unsigned int f; | |
9f8cdf4f | 6191 | |
9f8cdf4f JB |
6192 | if (adapter->vlgrp && vlan_tx_tag_present(skb)) { |
6193 | tx_flags |= vlan_tx_tag_get(skb); | |
2f90b865 AD |
6194 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { |
6195 | tx_flags &= ~IXGBE_TX_FLAGS_VLAN_PRIO_MASK; | |
5f715823 | 6196 | tx_flags |= ((skb->queue_mapping & 0x7) << 13); |
2f90b865 AD |
6197 | } |
6198 | tx_flags <<= IXGBE_TX_FLAGS_VLAN_SHIFT; | |
6199 | tx_flags |= IXGBE_TX_FLAGS_VLAN; | |
33c66bd1 JF |
6200 | } else if (adapter->flags & IXGBE_FLAG_DCB_ENABLED && |
6201 | skb->priority != TC_PRIO_CONTROL) { | |
2ea186ae JF |
6202 | tx_flags |= ((skb->queue_mapping & 0x7) << 13); |
6203 | tx_flags <<= IXGBE_TX_FLAGS_VLAN_SHIFT; | |
6204 | tx_flags |= IXGBE_TX_FLAGS_VLAN; | |
9a799d71 | 6205 | } |
eacd73f7 | 6206 | |
4a0b9ca0 | 6207 | tx_ring = adapter->tx_ring[skb->queue_mapping]; |
60127865 | 6208 | |
09ad1cc0 | 6209 | #ifdef IXGBE_FCOE |
ca77cd59 | 6210 | if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) { |
61a0f421 | 6211 | #ifdef CONFIG_IXGBE_DCB |
ca77cd59 RL |
6212 | /* for FCoE with DCB, we force the priority to what |
6213 | * was specified by the switch */ | |
6214 | if ((skb->protocol == htons(ETH_P_FCOE)) || | |
6215 | (skb->protocol == htons(ETH_P_FIP))) { | |
6216 | tx_flags &= ~(IXGBE_TX_FLAGS_VLAN_PRIO_MASK | |
6217 | << IXGBE_TX_FLAGS_VLAN_SHIFT); | |
6218 | tx_flags |= ((adapter->fcoe.up << 13) | |
6219 | << IXGBE_TX_FLAGS_VLAN_SHIFT); | |
6220 | } | |
09ad1cc0 | 6221 | #endif |
ca77cd59 RL |
6222 | /* flag for FCoE offloads */ |
6223 | if (skb->protocol == htons(ETH_P_FCOE)) | |
6224 | tx_flags |= IXGBE_TX_FLAGS_FCOE; | |
09ad1cc0 | 6225 | } |
ca77cd59 RL |
6226 | #endif |
6227 | ||
eacd73f7 | 6228 | /* four things can cause us to need a context descriptor */ |
9f8cdf4f JB |
6229 | if (skb_is_gso(skb) || |
6230 | (skb->ip_summed == CHECKSUM_PARTIAL) || | |
eacd73f7 YZ |
6231 | (tx_flags & IXGBE_TX_FLAGS_VLAN) || |
6232 | (tx_flags & IXGBE_TX_FLAGS_FCOE)) | |
9a799d71 AK |
6233 | count++; |
6234 | ||
9f8cdf4f JB |
6235 | count += TXD_USE_COUNT(skb_headlen(skb)); |
6236 | for (f = 0; f < skb_shinfo(skb)->nr_frags; f++) | |
9a799d71 AK |
6237 | count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size); |
6238 | ||
e092be60 | 6239 | if (ixgbe_maybe_stop_tx(netdev, tx_ring, count)) { |
9a799d71 | 6240 | adapter->tx_busy++; |
9a799d71 AK |
6241 | return NETDEV_TX_BUSY; |
6242 | } | |
9a799d71 | 6243 | |
9a799d71 | 6244 | first = tx_ring->next_to_use; |
eacd73f7 YZ |
6245 | if (tx_flags & IXGBE_TX_FLAGS_FCOE) { |
6246 | #ifdef IXGBE_FCOE | |
6247 | /* setup tx offload for FCoE */ | |
6248 | tso = ixgbe_fso(adapter, tx_ring, skb, tx_flags, &hdr_len); | |
6249 | if (tso < 0) { | |
6250 | dev_kfree_skb_any(skb); | |
6251 | return NETDEV_TX_OK; | |
6252 | } | |
6253 | if (tso) | |
6254 | tx_flags |= IXGBE_TX_FLAGS_FSO; | |
6255 | #endif /* IXGBE_FCOE */ | |
6256 | } else { | |
6257 | if (skb->protocol == htons(ETH_P_IP)) | |
6258 | tx_flags |= IXGBE_TX_FLAGS_IPV4; | |
6259 | tso = ixgbe_tso(adapter, tx_ring, skb, tx_flags, &hdr_len); | |
6260 | if (tso < 0) { | |
6261 | dev_kfree_skb_any(skb); | |
6262 | return NETDEV_TX_OK; | |
6263 | } | |
9a799d71 | 6264 | |
eacd73f7 YZ |
6265 | if (tso) |
6266 | tx_flags |= IXGBE_TX_FLAGS_TSO; | |
6267 | else if (ixgbe_tx_csum(adapter, tx_ring, skb, tx_flags) && | |
6268 | (skb->ip_summed == CHECKSUM_PARTIAL)) | |
6269 | tx_flags |= IXGBE_TX_FLAGS_CSUM; | |
6270 | } | |
9a799d71 | 6271 | |
eacd73f7 | 6272 | count = ixgbe_tx_map(adapter, tx_ring, skb, tx_flags, first); |
44df32c5 | 6273 | if (count) { |
c4cf55e5 PWJ |
6274 | /* add the ATR filter if ATR is on */ |
6275 | if (tx_ring->atr_sample_rate) { | |
6276 | ++tx_ring->atr_count; | |
6277 | if ((tx_ring->atr_count >= tx_ring->atr_sample_rate) && | |
6278 | test_bit(__IXGBE_FDIR_INIT_DONE, | |
6279 | &tx_ring->reinit_state)) { | |
6280 | ixgbe_atr(adapter, skb, tx_ring->queue_index, | |
6281 | tx_flags); | |
6282 | tx_ring->atr_count = 0; | |
6283 | } | |
6284 | } | |
60d51134 ED |
6285 | txq = netdev_get_tx_queue(netdev, tx_ring->queue_index); |
6286 | txq->tx_bytes += skb->len; | |
6287 | txq->tx_packets++; | |
44df32c5 AD |
6288 | ixgbe_tx_queue(adapter, tx_ring, tx_flags, count, skb->len, |
6289 | hdr_len); | |
44df32c5 | 6290 | ixgbe_maybe_stop_tx(netdev, tx_ring, DESC_NEEDED); |
9a799d71 | 6291 | |
44df32c5 AD |
6292 | } else { |
6293 | dev_kfree_skb_any(skb); | |
6294 | tx_ring->tx_buffer_info[first].time_stamp = 0; | |
6295 | tx_ring->next_to_use = first; | |
6296 | } | |
9a799d71 AK |
6297 | |
6298 | return NETDEV_TX_OK; | |
6299 | } | |
6300 | ||
9a799d71 AK |
6301 | /** |
6302 | * ixgbe_set_mac - Change the Ethernet Address of the NIC | |
6303 | * @netdev: network interface device structure | |
6304 | * @p: pointer to an address structure | |
6305 | * | |
6306 | * Returns 0 on success, negative on failure | |
6307 | **/ | |
6308 | static int ixgbe_set_mac(struct net_device *netdev, void *p) | |
6309 | { | |
6310 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
b4617240 | 6311 | struct ixgbe_hw *hw = &adapter->hw; |
9a799d71 AK |
6312 | struct sockaddr *addr = p; |
6313 | ||
6314 | if (!is_valid_ether_addr(addr->sa_data)) | |
6315 | return -EADDRNOTAVAIL; | |
6316 | ||
6317 | memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); | |
b4617240 | 6318 | memcpy(hw->mac.addr, addr->sa_data, netdev->addr_len); |
9a799d71 | 6319 | |
1cdd1ec8 GR |
6320 | hw->mac.ops.set_rar(hw, 0, hw->mac.addr, adapter->num_vfs, |
6321 | IXGBE_RAH_AV); | |
9a799d71 AK |
6322 | |
6323 | return 0; | |
6324 | } | |
6325 | ||
6b73e10d BH |
6326 | static int |
6327 | ixgbe_mdio_read(struct net_device *netdev, int prtad, int devad, u16 addr) | |
6328 | { | |
6329 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
6330 | struct ixgbe_hw *hw = &adapter->hw; | |
6331 | u16 value; | |
6332 | int rc; | |
6333 | ||
6334 | if (prtad != hw->phy.mdio.prtad) | |
6335 | return -EINVAL; | |
6336 | rc = hw->phy.ops.read_reg(hw, addr, devad, &value); | |
6337 | if (!rc) | |
6338 | rc = value; | |
6339 | return rc; | |
6340 | } | |
6341 | ||
6342 | static int ixgbe_mdio_write(struct net_device *netdev, int prtad, int devad, | |
6343 | u16 addr, u16 value) | |
6344 | { | |
6345 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
6346 | struct ixgbe_hw *hw = &adapter->hw; | |
6347 | ||
6348 | if (prtad != hw->phy.mdio.prtad) | |
6349 | return -EINVAL; | |
6350 | return hw->phy.ops.write_reg(hw, addr, devad, value); | |
6351 | } | |
6352 | ||
6353 | static int ixgbe_ioctl(struct net_device *netdev, struct ifreq *req, int cmd) | |
6354 | { | |
6355 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
6356 | ||
6357 | return mdio_mii_ioctl(&adapter->hw.phy.mdio, if_mii(req), cmd); | |
6358 | } | |
6359 | ||
0365e6e4 PW |
6360 | /** |
6361 | * ixgbe_add_sanmac_netdev - Add the SAN MAC address to the corresponding | |
31278e71 | 6362 | * netdev->dev_addrs |
0365e6e4 PW |
6363 | * @netdev: network interface device structure |
6364 | * | |
6365 | * Returns non-zero on failure | |
6366 | **/ | |
6367 | static int ixgbe_add_sanmac_netdev(struct net_device *dev) | |
6368 | { | |
6369 | int err = 0; | |
6370 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
6371 | struct ixgbe_mac_info *mac = &adapter->hw.mac; | |
6372 | ||
6373 | if (is_valid_ether_addr(mac->san_addr)) { | |
6374 | rtnl_lock(); | |
6375 | err = dev_addr_add(dev, mac->san_addr, NETDEV_HW_ADDR_T_SAN); | |
6376 | rtnl_unlock(); | |
6377 | } | |
6378 | return err; | |
6379 | } | |
6380 | ||
6381 | /** | |
6382 | * ixgbe_del_sanmac_netdev - Removes the SAN MAC address to the corresponding | |
31278e71 | 6383 | * netdev->dev_addrs |
0365e6e4 PW |
6384 | * @netdev: network interface device structure |
6385 | * | |
6386 | * Returns non-zero on failure | |
6387 | **/ | |
6388 | static int ixgbe_del_sanmac_netdev(struct net_device *dev) | |
6389 | { | |
6390 | int err = 0; | |
6391 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
6392 | struct ixgbe_mac_info *mac = &adapter->hw.mac; | |
6393 | ||
6394 | if (is_valid_ether_addr(mac->san_addr)) { | |
6395 | rtnl_lock(); | |
6396 | err = dev_addr_del(dev, mac->san_addr, NETDEV_HW_ADDR_T_SAN); | |
6397 | rtnl_unlock(); | |
6398 | } | |
6399 | return err; | |
6400 | } | |
6401 | ||
9a799d71 AK |
6402 | #ifdef CONFIG_NET_POLL_CONTROLLER |
6403 | /* | |
6404 | * Polling 'interrupt' - used by things like netconsole to send skbs | |
6405 | * without having to re-enable interrupts. It's not called while | |
6406 | * the interrupt routine is executing. | |
6407 | */ | |
6408 | static void ixgbe_netpoll(struct net_device *netdev) | |
6409 | { | |
6410 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
8f9a7167 | 6411 | int i; |
9a799d71 | 6412 | |
1a647bd2 AD |
6413 | /* if interface is down do nothing */ |
6414 | if (test_bit(__IXGBE_DOWN, &adapter->state)) | |
6415 | return; | |
6416 | ||
9a799d71 | 6417 | adapter->flags |= IXGBE_FLAG_IN_NETPOLL; |
8f9a7167 PWJ |
6418 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
6419 | int num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; | |
6420 | for (i = 0; i < num_q_vectors; i++) { | |
6421 | struct ixgbe_q_vector *q_vector = adapter->q_vector[i]; | |
6422 | ixgbe_msix_clean_many(0, q_vector); | |
6423 | } | |
6424 | } else { | |
6425 | ixgbe_intr(adapter->pdev->irq, netdev); | |
6426 | } | |
9a799d71 | 6427 | adapter->flags &= ~IXGBE_FLAG_IN_NETPOLL; |
9a799d71 AK |
6428 | } |
6429 | #endif | |
6430 | ||
0edc3527 SH |
6431 | static const struct net_device_ops ixgbe_netdev_ops = { |
6432 | .ndo_open = ixgbe_open, | |
6433 | .ndo_stop = ixgbe_close, | |
00829823 | 6434 | .ndo_start_xmit = ixgbe_xmit_frame, |
09a3b1f8 | 6435 | .ndo_select_queue = ixgbe_select_queue, |
e90d400c | 6436 | .ndo_set_rx_mode = ixgbe_set_rx_mode, |
0edc3527 SH |
6437 | .ndo_set_multicast_list = ixgbe_set_rx_mode, |
6438 | .ndo_validate_addr = eth_validate_addr, | |
6439 | .ndo_set_mac_address = ixgbe_set_mac, | |
6440 | .ndo_change_mtu = ixgbe_change_mtu, | |
6441 | .ndo_tx_timeout = ixgbe_tx_timeout, | |
6442 | .ndo_vlan_rx_register = ixgbe_vlan_rx_register, | |
6443 | .ndo_vlan_rx_add_vid = ixgbe_vlan_rx_add_vid, | |
6444 | .ndo_vlan_rx_kill_vid = ixgbe_vlan_rx_kill_vid, | |
6b73e10d | 6445 | .ndo_do_ioctl = ixgbe_ioctl, |
7f01648a GR |
6446 | .ndo_set_vf_mac = ixgbe_ndo_set_vf_mac, |
6447 | .ndo_set_vf_vlan = ixgbe_ndo_set_vf_vlan, | |
6448 | .ndo_set_vf_tx_rate = ixgbe_ndo_set_vf_bw, | |
6449 | .ndo_get_vf_config = ixgbe_ndo_get_vf_config, | |
0edc3527 SH |
6450 | #ifdef CONFIG_NET_POLL_CONTROLLER |
6451 | .ndo_poll_controller = ixgbe_netpoll, | |
6452 | #endif | |
332d4a7d YZ |
6453 | #ifdef IXGBE_FCOE |
6454 | .ndo_fcoe_ddp_setup = ixgbe_fcoe_ddp_get, | |
6455 | .ndo_fcoe_ddp_done = ixgbe_fcoe_ddp_put, | |
8450ff8c YZ |
6456 | .ndo_fcoe_enable = ixgbe_fcoe_enable, |
6457 | .ndo_fcoe_disable = ixgbe_fcoe_disable, | |
61a1fa10 | 6458 | .ndo_fcoe_get_wwn = ixgbe_fcoe_get_wwn, |
332d4a7d | 6459 | #endif /* IXGBE_FCOE */ |
0edc3527 SH |
6460 | }; |
6461 | ||
1cdd1ec8 GR |
6462 | static void __devinit ixgbe_probe_vf(struct ixgbe_adapter *adapter, |
6463 | const struct ixgbe_info *ii) | |
6464 | { | |
6465 | #ifdef CONFIG_PCI_IOV | |
6466 | struct ixgbe_hw *hw = &adapter->hw; | |
6467 | int err; | |
6468 | ||
6469 | if (hw->mac.type != ixgbe_mac_82599EB || !max_vfs) | |
6470 | return; | |
6471 | ||
6472 | /* The 82599 supports up to 64 VFs per physical function | |
6473 | * but this implementation limits allocation to 63 so that | |
6474 | * basic networking resources are still available to the | |
6475 | * physical function | |
6476 | */ | |
6477 | adapter->num_vfs = (max_vfs > 63) ? 63 : max_vfs; | |
6478 | adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED; | |
6479 | err = pci_enable_sriov(adapter->pdev, adapter->num_vfs); | |
6480 | if (err) { | |
396e799c | 6481 | e_err(probe, "Failed to enable PCI sriov: %d\n", err); |
1cdd1ec8 GR |
6482 | goto err_novfs; |
6483 | } | |
6484 | /* If call to enable VFs succeeded then allocate memory | |
6485 | * for per VF control structures. | |
6486 | */ | |
6487 | adapter->vfinfo = | |
6488 | kcalloc(adapter->num_vfs, | |
6489 | sizeof(struct vf_data_storage), GFP_KERNEL); | |
6490 | if (adapter->vfinfo) { | |
6491 | /* Now that we're sure SR-IOV is enabled | |
6492 | * and memory allocated set up the mailbox parameters | |
6493 | */ | |
6494 | ixgbe_init_mbx_params_pf(hw); | |
6495 | memcpy(&hw->mbx.ops, ii->mbx_ops, | |
6496 | sizeof(hw->mbx.ops)); | |
6497 | ||
6498 | /* Disable RSC when in SR-IOV mode */ | |
6499 | adapter->flags2 &= ~(IXGBE_FLAG2_RSC_CAPABLE | | |
6500 | IXGBE_FLAG2_RSC_ENABLED); | |
6501 | return; | |
6502 | } | |
6503 | ||
6504 | /* Oh oh */ | |
396e799c ET |
6505 | e_err(probe, "Unable to allocate memory for VF Data Storage - " |
6506 | "SRIOV disabled\n"); | |
1cdd1ec8 GR |
6507 | pci_disable_sriov(adapter->pdev); |
6508 | ||
6509 | err_novfs: | |
6510 | adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED; | |
6511 | adapter->num_vfs = 0; | |
6512 | #endif /* CONFIG_PCI_IOV */ | |
6513 | } | |
6514 | ||
9a799d71 AK |
6515 | /** |
6516 | * ixgbe_probe - Device Initialization Routine | |
6517 | * @pdev: PCI device information struct | |
6518 | * @ent: entry in ixgbe_pci_tbl | |
6519 | * | |
6520 | * Returns 0 on success, negative on failure | |
6521 | * | |
6522 | * ixgbe_probe initializes an adapter identified by a pci_dev structure. | |
6523 | * The OS initialization, configuring of the adapter private structure, | |
6524 | * and a hardware reset occur. | |
6525 | **/ | |
6526 | static int __devinit ixgbe_probe(struct pci_dev *pdev, | |
b4617240 | 6527 | const struct pci_device_id *ent) |
9a799d71 AK |
6528 | { |
6529 | struct net_device *netdev; | |
6530 | struct ixgbe_adapter *adapter = NULL; | |
6531 | struct ixgbe_hw *hw; | |
6532 | const struct ixgbe_info *ii = ixgbe_info_tbl[ent->driver_data]; | |
9a799d71 AK |
6533 | static int cards_found; |
6534 | int i, err, pci_using_dac; | |
c85a2618 | 6535 | unsigned int indices = num_possible_cpus(); |
eacd73f7 YZ |
6536 | #ifdef IXGBE_FCOE |
6537 | u16 device_caps; | |
6538 | #endif | |
c44ade9e | 6539 | u32 part_num, eec; |
9a799d71 | 6540 | |
9ce77666 | 6541 | err = pci_enable_device_mem(pdev); |
9a799d71 AK |
6542 | if (err) |
6543 | return err; | |
6544 | ||
1b507730 NN |
6545 | if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)) && |
6546 | !dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64))) { | |
9a799d71 AK |
6547 | pci_using_dac = 1; |
6548 | } else { | |
1b507730 | 6549 | err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); |
9a799d71 | 6550 | if (err) { |
1b507730 NN |
6551 | err = dma_set_coherent_mask(&pdev->dev, |
6552 | DMA_BIT_MASK(32)); | |
9a799d71 | 6553 | if (err) { |
849c4542 ET |
6554 | e_dev_err("No usable DMA configuration, " |
6555 | "aborting\n"); | |
9a799d71 AK |
6556 | goto err_dma; |
6557 | } | |
6558 | } | |
6559 | pci_using_dac = 0; | |
6560 | } | |
6561 | ||
9ce77666 | 6562 | err = pci_request_selected_regions(pdev, pci_select_bars(pdev, |
6563 | IORESOURCE_MEM), ixgbe_driver_name); | |
9a799d71 | 6564 | if (err) { |
849c4542 | 6565 | e_dev_err("pci_request_selected_regions failed 0x%x\n", err); |
9a799d71 AK |
6566 | goto err_pci_reg; |
6567 | } | |
6568 | ||
19d5afd4 | 6569 | pci_enable_pcie_error_reporting(pdev); |
6fabd715 | 6570 | |
9a799d71 | 6571 | pci_set_master(pdev); |
fb3b27bc | 6572 | pci_save_state(pdev); |
9a799d71 | 6573 | |
c85a2618 JF |
6574 | if (ii->mac == ixgbe_mac_82598EB) |
6575 | indices = min_t(unsigned int, indices, IXGBE_MAX_RSS_INDICES); | |
6576 | else | |
6577 | indices = min_t(unsigned int, indices, IXGBE_MAX_FDIR_INDICES); | |
6578 | ||
6579 | indices = max_t(unsigned int, indices, IXGBE_MAX_DCB_INDICES); | |
6580 | #ifdef IXGBE_FCOE | |
6581 | indices += min_t(unsigned int, num_possible_cpus(), | |
6582 | IXGBE_MAX_FCOE_INDICES); | |
6583 | #endif | |
c85a2618 | 6584 | netdev = alloc_etherdev_mq(sizeof(struct ixgbe_adapter), indices); |
9a799d71 AK |
6585 | if (!netdev) { |
6586 | err = -ENOMEM; | |
6587 | goto err_alloc_etherdev; | |
6588 | } | |
6589 | ||
9a799d71 AK |
6590 | SET_NETDEV_DEV(netdev, &pdev->dev); |
6591 | ||
6592 | pci_set_drvdata(pdev, netdev); | |
6593 | adapter = netdev_priv(netdev); | |
6594 | ||
6595 | adapter->netdev = netdev; | |
6596 | adapter->pdev = pdev; | |
6597 | hw = &adapter->hw; | |
6598 | hw->back = adapter; | |
6599 | adapter->msg_enable = (1 << DEFAULT_DEBUG_LEVEL_SHIFT) - 1; | |
6600 | ||
05857980 JK |
6601 | hw->hw_addr = ioremap(pci_resource_start(pdev, 0), |
6602 | pci_resource_len(pdev, 0)); | |
9a799d71 AK |
6603 | if (!hw->hw_addr) { |
6604 | err = -EIO; | |
6605 | goto err_ioremap; | |
6606 | } | |
6607 | ||
6608 | for (i = 1; i <= 5; i++) { | |
6609 | if (pci_resource_len(pdev, i) == 0) | |
6610 | continue; | |
6611 | } | |
6612 | ||
0edc3527 | 6613 | netdev->netdev_ops = &ixgbe_netdev_ops; |
9a799d71 | 6614 | ixgbe_set_ethtool_ops(netdev); |
9a799d71 | 6615 | netdev->watchdog_timeo = 5 * HZ; |
9a799d71 AK |
6616 | strcpy(netdev->name, pci_name(pdev)); |
6617 | ||
9a799d71 AK |
6618 | adapter->bd_number = cards_found; |
6619 | ||
9a799d71 AK |
6620 | /* Setup hw api */ |
6621 | memcpy(&hw->mac.ops, ii->mac_ops, sizeof(hw->mac.ops)); | |
021230d4 | 6622 | hw->mac.type = ii->mac; |
9a799d71 | 6623 | |
c44ade9e JB |
6624 | /* EEPROM */ |
6625 | memcpy(&hw->eeprom.ops, ii->eeprom_ops, sizeof(hw->eeprom.ops)); | |
6626 | eec = IXGBE_READ_REG(hw, IXGBE_EEC); | |
6627 | /* If EEPROM is valid (bit 8 = 1), use default otherwise use bit bang */ | |
6628 | if (!(eec & (1 << 8))) | |
6629 | hw->eeprom.ops.read = &ixgbe_read_eeprom_bit_bang_generic; | |
6630 | ||
6631 | /* PHY */ | |
6632 | memcpy(&hw->phy.ops, ii->phy_ops, sizeof(hw->phy.ops)); | |
c4900be0 | 6633 | hw->phy.sfp_type = ixgbe_sfp_type_unknown; |
6b73e10d BH |
6634 | /* ixgbe_identify_phy_generic will set prtad and mmds properly */ |
6635 | hw->phy.mdio.prtad = MDIO_PRTAD_NONE; | |
6636 | hw->phy.mdio.mmds = 0; | |
6637 | hw->phy.mdio.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22; | |
6638 | hw->phy.mdio.dev = netdev; | |
6639 | hw->phy.mdio.mdio_read = ixgbe_mdio_read; | |
6640 | hw->phy.mdio.mdio_write = ixgbe_mdio_write; | |
c4900be0 DS |
6641 | |
6642 | /* set up this timer and work struct before calling get_invariants | |
6643 | * which might start the timer | |
6644 | */ | |
6645 | init_timer(&adapter->sfp_timer); | |
6646 | adapter->sfp_timer.function = &ixgbe_sfp_timer; | |
6647 | adapter->sfp_timer.data = (unsigned long) adapter; | |
6648 | ||
6649 | INIT_WORK(&adapter->sfp_task, ixgbe_sfp_task); | |
c44ade9e | 6650 | |
e8e26350 PW |
6651 | /* multispeed fiber has its own tasklet, called from GPI SDP1 context */ |
6652 | INIT_WORK(&adapter->multispeed_fiber_task, ixgbe_multispeed_fiber_task); | |
6653 | ||
6654 | /* a new SFP+ module arrival, called from GPI SDP2 context */ | |
6655 | INIT_WORK(&adapter->sfp_config_module_task, | |
6656 | ixgbe_sfp_config_module_task); | |
6657 | ||
8ca783ab | 6658 | ii->get_invariants(hw); |
9a799d71 AK |
6659 | |
6660 | /* setup the private structure */ | |
6661 | err = ixgbe_sw_init(adapter); | |
6662 | if (err) | |
6663 | goto err_sw_init; | |
6664 | ||
e86bff0e DS |
6665 | /* Make it possible the adapter to be woken up via WOL */ |
6666 | if (adapter->hw.mac.type == ixgbe_mac_82599EB) | |
6667 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); | |
6668 | ||
bf069c97 DS |
6669 | /* |
6670 | * If there is a fan on this device and it has failed log the | |
6671 | * failure. | |
6672 | */ | |
6673 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) { | |
6674 | u32 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); | |
6675 | if (esdp & IXGBE_ESDP_SDP1) | |
396e799c | 6676 | e_crit(probe, "Fan has stopped, replace the adapter\n"); |
bf069c97 DS |
6677 | } |
6678 | ||
c44ade9e | 6679 | /* reset_hw fills in the perm_addr as well */ |
119fc60a | 6680 | hw->phy.reset_if_overtemp = true; |
c44ade9e | 6681 | err = hw->mac.ops.reset_hw(hw); |
119fc60a | 6682 | hw->phy.reset_if_overtemp = false; |
8ca783ab DS |
6683 | if (err == IXGBE_ERR_SFP_NOT_PRESENT && |
6684 | hw->mac.type == ixgbe_mac_82598EB) { | |
6685 | /* | |
6686 | * Start a kernel thread to watch for a module to arrive. | |
6687 | * Only do this for 82598, since 82599 will generate | |
6688 | * interrupts on module arrival. | |
6689 | */ | |
6690 | set_bit(__IXGBE_SFP_MODULE_NOT_FOUND, &adapter->state); | |
6691 | mod_timer(&adapter->sfp_timer, | |
6692 | round_jiffies(jiffies + (2 * HZ))); | |
6693 | err = 0; | |
6694 | } else if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) { | |
849c4542 ET |
6695 | e_dev_err("failed to initialize because an unsupported SFP+ " |
6696 | "module type was detected.\n"); | |
6697 | e_dev_err("Reload the driver after installing a supported " | |
6698 | "module.\n"); | |
04f165ef PW |
6699 | goto err_sw_init; |
6700 | } else if (err) { | |
849c4542 | 6701 | e_dev_err("HW Init failed: %d\n", err); |
c44ade9e JB |
6702 | goto err_sw_init; |
6703 | } | |
6704 | ||
1cdd1ec8 GR |
6705 | ixgbe_probe_vf(adapter, ii); |
6706 | ||
396e799c | 6707 | netdev->features = NETIF_F_SG | |
b4617240 PW |
6708 | NETIF_F_IP_CSUM | |
6709 | NETIF_F_HW_VLAN_TX | | |
6710 | NETIF_F_HW_VLAN_RX | | |
6711 | NETIF_F_HW_VLAN_FILTER; | |
9a799d71 | 6712 | |
e9990a9c | 6713 | netdev->features |= NETIF_F_IPV6_CSUM; |
9a799d71 | 6714 | netdev->features |= NETIF_F_TSO; |
9a799d71 | 6715 | netdev->features |= NETIF_F_TSO6; |
78b6f4ce | 6716 | netdev->features |= NETIF_F_GRO; |
ad31c402 | 6717 | |
45a5ead0 JB |
6718 | if (adapter->hw.mac.type == ixgbe_mac_82599EB) |
6719 | netdev->features |= NETIF_F_SCTP_CSUM; | |
6720 | ||
ad31c402 JK |
6721 | netdev->vlan_features |= NETIF_F_TSO; |
6722 | netdev->vlan_features |= NETIF_F_TSO6; | |
22f32b7a | 6723 | netdev->vlan_features |= NETIF_F_IP_CSUM; |
cd1da503 | 6724 | netdev->vlan_features |= NETIF_F_IPV6_CSUM; |
ad31c402 JK |
6725 | netdev->vlan_features |= NETIF_F_SG; |
6726 | ||
1cdd1ec8 GR |
6727 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) |
6728 | adapter->flags &= ~(IXGBE_FLAG_RSS_ENABLED | | |
6729 | IXGBE_FLAG_DCB_ENABLED); | |
2f90b865 AD |
6730 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) |
6731 | adapter->flags &= ~IXGBE_FLAG_RSS_ENABLED; | |
6732 | ||
7a6b6f51 | 6733 | #ifdef CONFIG_IXGBE_DCB |
2f90b865 AD |
6734 | netdev->dcbnl_ops = &dcbnl_ops; |
6735 | #endif | |
6736 | ||
eacd73f7 | 6737 | #ifdef IXGBE_FCOE |
0d551589 | 6738 | if (adapter->flags & IXGBE_FLAG_FCOE_CAPABLE) { |
eacd73f7 YZ |
6739 | if (hw->mac.ops.get_device_caps) { |
6740 | hw->mac.ops.get_device_caps(hw, &device_caps); | |
0d551589 YZ |
6741 | if (device_caps & IXGBE_DEVICE_CAPS_FCOE_OFFLOADS) |
6742 | adapter->flags &= ~IXGBE_FLAG_FCOE_CAPABLE; | |
eacd73f7 YZ |
6743 | } |
6744 | } | |
6745 | #endif /* IXGBE_FCOE */ | |
9a799d71 AK |
6746 | if (pci_using_dac) |
6747 | netdev->features |= NETIF_F_HIGHDMA; | |
6748 | ||
0c19d6af | 6749 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) |
f8212f97 AD |
6750 | netdev->features |= NETIF_F_LRO; |
6751 | ||
9a799d71 | 6752 | /* make sure the EEPROM is good */ |
c44ade9e | 6753 | if (hw->eeprom.ops.validate_checksum(hw, NULL) < 0) { |
849c4542 | 6754 | e_dev_err("The EEPROM Checksum Is Not Valid\n"); |
9a799d71 AK |
6755 | err = -EIO; |
6756 | goto err_eeprom; | |
6757 | } | |
6758 | ||
6759 | memcpy(netdev->dev_addr, hw->mac.perm_addr, netdev->addr_len); | |
6760 | memcpy(netdev->perm_addr, hw->mac.perm_addr, netdev->addr_len); | |
6761 | ||
c44ade9e | 6762 | if (ixgbe_validate_mac_addr(netdev->perm_addr)) { |
849c4542 | 6763 | e_dev_err("invalid MAC address\n"); |
9a799d71 AK |
6764 | err = -EIO; |
6765 | goto err_eeprom; | |
6766 | } | |
6767 | ||
61fac744 PW |
6768 | /* power down the optics */ |
6769 | if (hw->phy.multispeed_fiber) | |
6770 | hw->mac.ops.disable_tx_laser(hw); | |
6771 | ||
9a799d71 AK |
6772 | init_timer(&adapter->watchdog_timer); |
6773 | adapter->watchdog_timer.function = &ixgbe_watchdog; | |
6774 | adapter->watchdog_timer.data = (unsigned long)adapter; | |
6775 | ||
6776 | INIT_WORK(&adapter->reset_task, ixgbe_reset_task); | |
cf8280ee | 6777 | INIT_WORK(&adapter->watchdog_task, ixgbe_watchdog_task); |
9a799d71 | 6778 | |
021230d4 AV |
6779 | err = ixgbe_init_interrupt_scheme(adapter); |
6780 | if (err) | |
6781 | goto err_sw_init; | |
9a799d71 | 6782 | |
e8e26350 PW |
6783 | switch (pdev->device) { |
6784 | case IXGBE_DEV_ID_82599_KX4: | |
495dce12 WJP |
6785 | adapter->wol = (IXGBE_WUFC_MAG | IXGBE_WUFC_EX | |
6786 | IXGBE_WUFC_MC | IXGBE_WUFC_BC); | |
e8e26350 PW |
6787 | break; |
6788 | default: | |
6789 | adapter->wol = 0; | |
6790 | break; | |
6791 | } | |
e8e26350 PW |
6792 | device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); |
6793 | ||
04f165ef PW |
6794 | /* pick up the PCI bus settings for reporting later */ |
6795 | hw->mac.ops.get_bus_info(hw); | |
6796 | ||
9a799d71 | 6797 | /* print bus type/speed/width info */ |
849c4542 | 6798 | e_dev_info("(PCI Express:%s:%s) %pM\n", |
e8e26350 PW |
6799 | ((hw->bus.speed == ixgbe_bus_speed_5000) ? "5.0Gb/s": |
6800 | (hw->bus.speed == ixgbe_bus_speed_2500) ? "2.5Gb/s":"Unknown"), | |
6801 | ((hw->bus.width == ixgbe_bus_width_pcie_x8) ? "Width x8" : | |
6802 | (hw->bus.width == ixgbe_bus_width_pcie_x4) ? "Width x4" : | |
6803 | (hw->bus.width == ixgbe_bus_width_pcie_x1) ? "Width x1" : | |
b4617240 | 6804 | "Unknown"), |
7c510e4b | 6805 | netdev->dev_addr); |
c44ade9e | 6806 | ixgbe_read_pba_num_generic(hw, &part_num); |
e8e26350 | 6807 | if (ixgbe_is_sfp(hw) && hw->phy.sfp_type != ixgbe_sfp_type_not_present) |
849c4542 ET |
6808 | e_dev_info("MAC: %d, PHY: %d, SFP+: %d, " |
6809 | "PBA No: %06x-%03x\n", | |
6810 | hw->mac.type, hw->phy.type, hw->phy.sfp_type, | |
6811 | (part_num >> 8), (part_num & 0xff)); | |
e8e26350 | 6812 | else |
849c4542 ET |
6813 | e_dev_info("MAC: %d, PHY: %d, PBA No: %06x-%03x\n", |
6814 | hw->mac.type, hw->phy.type, | |
6815 | (part_num >> 8), (part_num & 0xff)); | |
9a799d71 | 6816 | |
e8e26350 | 6817 | if (hw->bus.width <= ixgbe_bus_width_pcie_x4) { |
849c4542 ET |
6818 | e_dev_warn("PCI-Express bandwidth available for this card is " |
6819 | "not sufficient for optimal performance.\n"); | |
6820 | e_dev_warn("For optimal performance a x8 PCI-Express slot " | |
6821 | "is required.\n"); | |
0c254d86 AK |
6822 | } |
6823 | ||
34b0368c PWJ |
6824 | /* save off EEPROM version number */ |
6825 | hw->eeprom.ops.read(hw, 0x29, &adapter->eeprom_version); | |
6826 | ||
9a799d71 | 6827 | /* reset the hardware with the new settings */ |
794caeb2 | 6828 | err = hw->mac.ops.start_hw(hw); |
c44ade9e | 6829 | |
794caeb2 PWJ |
6830 | if (err == IXGBE_ERR_EEPROM_VERSION) { |
6831 | /* We are running on a pre-production device, log a warning */ | |
849c4542 ET |
6832 | e_dev_warn("This device is a pre-production adapter/LOM. " |
6833 | "Please be aware there may be issues associated " | |
6834 | "with your hardware. If you are experiencing " | |
6835 | "problems please contact your Intel or hardware " | |
6836 | "representative who provided you with this " | |
6837 | "hardware.\n"); | |
794caeb2 | 6838 | } |
9a799d71 AK |
6839 | strcpy(netdev->name, "eth%d"); |
6840 | err = register_netdev(netdev); | |
6841 | if (err) | |
6842 | goto err_register; | |
6843 | ||
54386467 JB |
6844 | /* carrier off reporting is important to ethtool even BEFORE open */ |
6845 | netif_carrier_off(netdev); | |
6846 | ||
c4cf55e5 PWJ |
6847 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE || |
6848 | adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) | |
6849 | INIT_WORK(&adapter->fdir_reinit_task, ixgbe_fdir_reinit_task); | |
6850 | ||
119fc60a MC |
6851 | if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) |
6852 | INIT_WORK(&adapter->check_overtemp_task, ixgbe_check_overtemp_task); | |
5dd2d332 | 6853 | #ifdef CONFIG_IXGBE_DCA |
652f093f | 6854 | if (dca_add_requester(&pdev->dev) == 0) { |
bd0362dd | 6855 | adapter->flags |= IXGBE_FLAG_DCA_ENABLED; |
bd0362dd JC |
6856 | ixgbe_setup_dca(adapter); |
6857 | } | |
6858 | #endif | |
1cdd1ec8 | 6859 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { |
396e799c | 6860 | e_info(probe, "IOV is enabled with %d VFs\n", adapter->num_vfs); |
1cdd1ec8 GR |
6861 | for (i = 0; i < adapter->num_vfs; i++) |
6862 | ixgbe_vf_configuration(pdev, (i | 0x10000000)); | |
6863 | } | |
6864 | ||
0365e6e4 PW |
6865 | /* add san mac addr to netdev */ |
6866 | ixgbe_add_sanmac_netdev(netdev); | |
9a799d71 | 6867 | |
849c4542 | 6868 | e_dev_info("Intel(R) 10 Gigabit Network Connection\n"); |
9a799d71 AK |
6869 | cards_found++; |
6870 | return 0; | |
6871 | ||
6872 | err_register: | |
5eba3699 | 6873 | ixgbe_release_hw_control(adapter); |
7a921c93 | 6874 | ixgbe_clear_interrupt_scheme(adapter); |
9a799d71 AK |
6875 | err_sw_init: |
6876 | err_eeprom: | |
1cdd1ec8 GR |
6877 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) |
6878 | ixgbe_disable_sriov(adapter); | |
c4900be0 DS |
6879 | clear_bit(__IXGBE_SFP_MODULE_NOT_FOUND, &adapter->state); |
6880 | del_timer_sync(&adapter->sfp_timer); | |
6881 | cancel_work_sync(&adapter->sfp_task); | |
e8e26350 PW |
6882 | cancel_work_sync(&adapter->multispeed_fiber_task); |
6883 | cancel_work_sync(&adapter->sfp_config_module_task); | |
9a799d71 AK |
6884 | iounmap(hw->hw_addr); |
6885 | err_ioremap: | |
6886 | free_netdev(netdev); | |
6887 | err_alloc_etherdev: | |
9ce77666 | 6888 | pci_release_selected_regions(pdev, pci_select_bars(pdev, |
6889 | IORESOURCE_MEM)); | |
9a799d71 AK |
6890 | err_pci_reg: |
6891 | err_dma: | |
6892 | pci_disable_device(pdev); | |
6893 | return err; | |
6894 | } | |
6895 | ||
6896 | /** | |
6897 | * ixgbe_remove - Device Removal Routine | |
6898 | * @pdev: PCI device information struct | |
6899 | * | |
6900 | * ixgbe_remove is called by the PCI subsystem to alert the driver | |
6901 | * that it should release a PCI device. The could be caused by a | |
6902 | * Hot-Plug event, or because the driver is going to be removed from | |
6903 | * memory. | |
6904 | **/ | |
6905 | static void __devexit ixgbe_remove(struct pci_dev *pdev) | |
6906 | { | |
6907 | struct net_device *netdev = pci_get_drvdata(pdev); | |
6908 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
6909 | ||
6910 | set_bit(__IXGBE_DOWN, &adapter->state); | |
c4900be0 DS |
6911 | /* clear the module not found bit to make sure the worker won't |
6912 | * reschedule | |
6913 | */ | |
6914 | clear_bit(__IXGBE_SFP_MODULE_NOT_FOUND, &adapter->state); | |
9a799d71 AK |
6915 | del_timer_sync(&adapter->watchdog_timer); |
6916 | ||
c4900be0 DS |
6917 | del_timer_sync(&adapter->sfp_timer); |
6918 | cancel_work_sync(&adapter->watchdog_task); | |
6919 | cancel_work_sync(&adapter->sfp_task); | |
e8e26350 PW |
6920 | cancel_work_sync(&adapter->multispeed_fiber_task); |
6921 | cancel_work_sync(&adapter->sfp_config_module_task); | |
c4cf55e5 PWJ |
6922 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE || |
6923 | adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) | |
6924 | cancel_work_sync(&adapter->fdir_reinit_task); | |
9a799d71 AK |
6925 | flush_scheduled_work(); |
6926 | ||
5dd2d332 | 6927 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd JC |
6928 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) { |
6929 | adapter->flags &= ~IXGBE_FLAG_DCA_ENABLED; | |
6930 | dca_remove_requester(&pdev->dev); | |
6931 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, 1); | |
6932 | } | |
6933 | ||
6934 | #endif | |
332d4a7d YZ |
6935 | #ifdef IXGBE_FCOE |
6936 | if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) | |
6937 | ixgbe_cleanup_fcoe(adapter); | |
6938 | ||
6939 | #endif /* IXGBE_FCOE */ | |
0365e6e4 PW |
6940 | |
6941 | /* remove the added san mac */ | |
6942 | ixgbe_del_sanmac_netdev(netdev); | |
6943 | ||
c4900be0 DS |
6944 | if (netdev->reg_state == NETREG_REGISTERED) |
6945 | unregister_netdev(netdev); | |
9a799d71 | 6946 | |
1cdd1ec8 GR |
6947 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) |
6948 | ixgbe_disable_sriov(adapter); | |
6949 | ||
7a921c93 | 6950 | ixgbe_clear_interrupt_scheme(adapter); |
5eba3699 | 6951 | |
021230d4 | 6952 | ixgbe_release_hw_control(adapter); |
9a799d71 AK |
6953 | |
6954 | iounmap(adapter->hw.hw_addr); | |
9ce77666 | 6955 | pci_release_selected_regions(pdev, pci_select_bars(pdev, |
6956 | IORESOURCE_MEM)); | |
9a799d71 | 6957 | |
849c4542 | 6958 | e_dev_info("complete\n"); |
021230d4 | 6959 | |
9a799d71 AK |
6960 | free_netdev(netdev); |
6961 | ||
19d5afd4 | 6962 | pci_disable_pcie_error_reporting(pdev); |
6fabd715 | 6963 | |
9a799d71 AK |
6964 | pci_disable_device(pdev); |
6965 | } | |
6966 | ||
6967 | /** | |
6968 | * ixgbe_io_error_detected - called when PCI error is detected | |
6969 | * @pdev: Pointer to PCI device | |
6970 | * @state: The current pci connection state | |
6971 | * | |
6972 | * This function is called after a PCI bus error affecting | |
6973 | * this device has been detected. | |
6974 | */ | |
6975 | static pci_ers_result_t ixgbe_io_error_detected(struct pci_dev *pdev, | |
b4617240 | 6976 | pci_channel_state_t state) |
9a799d71 AK |
6977 | { |
6978 | struct net_device *netdev = pci_get_drvdata(pdev); | |
454d7c9b | 6979 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
9a799d71 AK |
6980 | |
6981 | netif_device_detach(netdev); | |
6982 | ||
3044b8d1 BL |
6983 | if (state == pci_channel_io_perm_failure) |
6984 | return PCI_ERS_RESULT_DISCONNECT; | |
6985 | ||
9a799d71 AK |
6986 | if (netif_running(netdev)) |
6987 | ixgbe_down(adapter); | |
6988 | pci_disable_device(pdev); | |
6989 | ||
b4617240 | 6990 | /* Request a slot reset. */ |
9a799d71 AK |
6991 | return PCI_ERS_RESULT_NEED_RESET; |
6992 | } | |
6993 | ||
6994 | /** | |
6995 | * ixgbe_io_slot_reset - called after the pci bus has been reset. | |
6996 | * @pdev: Pointer to PCI device | |
6997 | * | |
6998 | * Restart the card from scratch, as if from a cold-boot. | |
6999 | */ | |
7000 | static pci_ers_result_t ixgbe_io_slot_reset(struct pci_dev *pdev) | |
7001 | { | |
7002 | struct net_device *netdev = pci_get_drvdata(pdev); | |
454d7c9b | 7003 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
6fabd715 PWJ |
7004 | pci_ers_result_t result; |
7005 | int err; | |
9a799d71 | 7006 | |
9ce77666 | 7007 | if (pci_enable_device_mem(pdev)) { |
396e799c | 7008 | e_err(probe, "Cannot re-enable PCI device after reset.\n"); |
6fabd715 PWJ |
7009 | result = PCI_ERS_RESULT_DISCONNECT; |
7010 | } else { | |
7011 | pci_set_master(pdev); | |
7012 | pci_restore_state(pdev); | |
c0e1f68b | 7013 | pci_save_state(pdev); |
9a799d71 | 7014 | |
dd4d8ca6 | 7015 | pci_wake_from_d3(pdev, false); |
9a799d71 | 7016 | |
6fabd715 | 7017 | ixgbe_reset(adapter); |
88512539 | 7018 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); |
6fabd715 PWJ |
7019 | result = PCI_ERS_RESULT_RECOVERED; |
7020 | } | |
7021 | ||
7022 | err = pci_cleanup_aer_uncorrect_error_status(pdev); | |
7023 | if (err) { | |
849c4542 ET |
7024 | e_dev_err("pci_cleanup_aer_uncorrect_error_status " |
7025 | "failed 0x%0x\n", err); | |
6fabd715 PWJ |
7026 | /* non-fatal, continue */ |
7027 | } | |
9a799d71 | 7028 | |
6fabd715 | 7029 | return result; |
9a799d71 AK |
7030 | } |
7031 | ||
7032 | /** | |
7033 | * ixgbe_io_resume - called when traffic can start flowing again. | |
7034 | * @pdev: Pointer to PCI device | |
7035 | * | |
7036 | * This callback is called when the error recovery driver tells us that | |
7037 | * its OK to resume normal operation. | |
7038 | */ | |
7039 | static void ixgbe_io_resume(struct pci_dev *pdev) | |
7040 | { | |
7041 | struct net_device *netdev = pci_get_drvdata(pdev); | |
454d7c9b | 7042 | struct ixgbe_adapter *adapter = netdev_priv(netdev); |
9a799d71 AK |
7043 | |
7044 | if (netif_running(netdev)) { | |
7045 | if (ixgbe_up(adapter)) { | |
396e799c | 7046 | e_info(probe, "ixgbe_up failed after reset\n"); |
9a799d71 AK |
7047 | return; |
7048 | } | |
7049 | } | |
7050 | ||
7051 | netif_device_attach(netdev); | |
9a799d71 AK |
7052 | } |
7053 | ||
7054 | static struct pci_error_handlers ixgbe_err_handler = { | |
7055 | .error_detected = ixgbe_io_error_detected, | |
7056 | .slot_reset = ixgbe_io_slot_reset, | |
7057 | .resume = ixgbe_io_resume, | |
7058 | }; | |
7059 | ||
7060 | static struct pci_driver ixgbe_driver = { | |
7061 | .name = ixgbe_driver_name, | |
7062 | .id_table = ixgbe_pci_tbl, | |
7063 | .probe = ixgbe_probe, | |
7064 | .remove = __devexit_p(ixgbe_remove), | |
7065 | #ifdef CONFIG_PM | |
7066 | .suspend = ixgbe_suspend, | |
7067 | .resume = ixgbe_resume, | |
7068 | #endif | |
7069 | .shutdown = ixgbe_shutdown, | |
7070 | .err_handler = &ixgbe_err_handler | |
7071 | }; | |
7072 | ||
7073 | /** | |
7074 | * ixgbe_init_module - Driver Registration Routine | |
7075 | * | |
7076 | * ixgbe_init_module is the first routine called when the driver is | |
7077 | * loaded. All it does is register with the PCI subsystem. | |
7078 | **/ | |
7079 | static int __init ixgbe_init_module(void) | |
7080 | { | |
7081 | int ret; | |
849c4542 ET |
7082 | pr_info("%s - version %s\n", ixgbe_driver_string, |
7083 | ixgbe_driver_version); | |
7084 | pr_info("%s\n", ixgbe_copyright); | |
9a799d71 | 7085 | |
5dd2d332 | 7086 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd | 7087 | dca_register_notify(&dca_notifier); |
bd0362dd | 7088 | #endif |
5dd2d332 | 7089 | |
9a799d71 AK |
7090 | ret = pci_register_driver(&ixgbe_driver); |
7091 | return ret; | |
7092 | } | |
b4617240 | 7093 | |
9a799d71 AK |
7094 | module_init(ixgbe_init_module); |
7095 | ||
7096 | /** | |
7097 | * ixgbe_exit_module - Driver Exit Cleanup Routine | |
7098 | * | |
7099 | * ixgbe_exit_module is called just before the driver is removed | |
7100 | * from memory. | |
7101 | **/ | |
7102 | static void __exit ixgbe_exit_module(void) | |
7103 | { | |
5dd2d332 | 7104 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd JC |
7105 | dca_unregister_notify(&dca_notifier); |
7106 | #endif | |
9a799d71 AK |
7107 | pci_unregister_driver(&ixgbe_driver); |
7108 | } | |
bd0362dd | 7109 | |
5dd2d332 | 7110 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd | 7111 | static int ixgbe_notify_dca(struct notifier_block *nb, unsigned long event, |
b4617240 | 7112 | void *p) |
bd0362dd JC |
7113 | { |
7114 | int ret_val; | |
7115 | ||
7116 | ret_val = driver_for_each_device(&ixgbe_driver.driver, NULL, &event, | |
b4617240 | 7117 | __ixgbe_notify_dca); |
bd0362dd JC |
7118 | |
7119 | return ret_val ? NOTIFY_BAD : NOTIFY_DONE; | |
7120 | } | |
b453368d | 7121 | |
5dd2d332 | 7122 | #endif /* CONFIG_IXGBE_DCA */ |
849c4542 | 7123 | |
b453368d | 7124 | /** |
849c4542 | 7125 | * ixgbe_get_hw_dev return device |
b453368d AD |
7126 | * used by hardware layer to print debugging information |
7127 | **/ | |
849c4542 | 7128 | struct net_device *ixgbe_get_hw_dev(struct ixgbe_hw *hw) |
b453368d AD |
7129 | { |
7130 | struct ixgbe_adapter *adapter = hw->back; | |
849c4542 | 7131 | return adapter->netdev; |
b453368d | 7132 | } |
bd0362dd | 7133 | |
9a799d71 AK |
7134 | module_exit(ixgbe_exit_module); |
7135 | ||
7136 | /* ixgbe_main.c */ |