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9a799d71 AK |
1 | /******************************************************************************* |
2 | ||
3 | Intel 10 Gigabit PCI Express Linux driver | |
94971820 | 4 | Copyright(c) 1999 - 2012 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> | |
a6b7a407 | 35 | #include <linux/interrupt.h> |
9a799d71 AK |
36 | #include <linux/ip.h> |
37 | #include <linux/tcp.h> | |
897ab156 | 38 | #include <linux/sctp.h> |
60127865 | 39 | #include <linux/pkt_sched.h> |
9a799d71 | 40 | #include <linux/ipv6.h> |
5a0e3ad6 | 41 | #include <linux/slab.h> |
9a799d71 AK |
42 | #include <net/checksum.h> |
43 | #include <net/ip6_checksum.h> | |
44 | #include <linux/ethtool.h> | |
01789349 | 45 | #include <linux/if.h> |
9a799d71 | 46 | #include <linux/if_vlan.h> |
70c71606 | 47 | #include <linux/prefetch.h> |
eacd73f7 | 48 | #include <scsi/fc/fc_fcoe.h> |
9a799d71 AK |
49 | |
50 | #include "ixgbe.h" | |
51 | #include "ixgbe_common.h" | |
ee5f784a | 52 | #include "ixgbe_dcb_82599.h" |
1cdd1ec8 | 53 | #include "ixgbe_sriov.h" |
9a799d71 AK |
54 | |
55 | char ixgbe_driver_name[] = "ixgbe"; | |
9c8eb720 | 56 | static const char ixgbe_driver_string[] = |
e8e9f696 | 57 | "Intel(R) 10 Gigabit PCI Express Network Driver"; |
ea81875a NP |
58 | char ixgbe_default_device_descr[] = |
59 | "Intel(R) 10 Gigabit Network Connection"; | |
75e3d3c6 | 60 | #define MAJ 3 |
19d478bb DS |
61 | #define MIN 6 |
62 | #define BUILD 7 | |
75e3d3c6 | 63 | #define DRV_VERSION __stringify(MAJ) "." __stringify(MIN) "." \ |
a38a104d | 64 | __stringify(BUILD) "-k" |
9c8eb720 | 65 | const char ixgbe_driver_version[] = DRV_VERSION; |
a52055e0 | 66 | static const char ixgbe_copyright[] = |
94971820 | 67 | "Copyright (c) 1999-2012 Intel Corporation."; |
9a799d71 AK |
68 | |
69 | static const struct ixgbe_info *ixgbe_info_tbl[] = { | |
b4617240 | 70 | [board_82598] = &ixgbe_82598_info, |
e8e26350 | 71 | [board_82599] = &ixgbe_82599_info, |
fe15e8e1 | 72 | [board_X540] = &ixgbe_X540_info, |
9a799d71 AK |
73 | }; |
74 | ||
75 | /* ixgbe_pci_tbl - PCI Device ID Table | |
76 | * | |
77 | * Wildcard entries (PCI_ANY_ID) should come last | |
78 | * Last entry must be all 0s | |
79 | * | |
80 | * { Vendor ID, Device ID, SubVendor ID, SubDevice ID, | |
81 | * Class, Class Mask, private data (not used) } | |
82 | */ | |
a3aa1884 | 83 | static DEFINE_PCI_DEVICE_TABLE(ixgbe_pci_tbl) = { |
54239c67 AD |
84 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598), board_82598 }, |
85 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_DUAL_PORT), board_82598 }, | |
86 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_SINGLE_PORT), board_82598 }, | |
87 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AT), board_82598 }, | |
88 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AT2), board_82598 }, | |
89 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_CX4), board_82598 }, | |
90 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_CX4_DUAL_PORT), board_82598 }, | |
91 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_DA_DUAL_PORT), board_82598 }, | |
92 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM), board_82598 }, | |
93 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_XF_LR), board_82598 }, | |
94 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_SFP_LOM), board_82598 }, | |
95 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_BX), board_82598 }, | |
96 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4), board_82599 }, | |
97 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_XAUI_LOM), board_82599 }, | |
98 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KR), board_82599 }, | |
99 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP), board_82599 }, | |
100 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_EM), board_82599 }, | |
101 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4_MEZZ), board_82599 }, | |
102 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_CX4), board_82599 }, | |
103 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_BACKPLANE_FCOE), board_82599 }, | |
104 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_FCOE), board_82599 }, | |
105 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_T3_LOM), board_82599 }, | |
106 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_COMBO_BACKPLANE), board_82599 }, | |
107 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X540T), board_X540 }, | |
108 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_SF2), board_82599 }, | |
109 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_LS), board_82599 }, | |
7d145282 | 110 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599EN_SFP), board_82599 }, |
9e791e4a | 111 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_SF_QP), board_82599 }, |
9a799d71 AK |
112 | /* required last entry */ |
113 | {0, } | |
114 | }; | |
115 | MODULE_DEVICE_TABLE(pci, ixgbe_pci_tbl); | |
116 | ||
5dd2d332 | 117 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd | 118 | static int ixgbe_notify_dca(struct notifier_block *, unsigned long event, |
e8e9f696 | 119 | void *p); |
bd0362dd JC |
120 | static struct notifier_block dca_notifier = { |
121 | .notifier_call = ixgbe_notify_dca, | |
122 | .next = NULL, | |
123 | .priority = 0 | |
124 | }; | |
125 | #endif | |
126 | ||
1cdd1ec8 GR |
127 | #ifdef CONFIG_PCI_IOV |
128 | static unsigned int max_vfs; | |
129 | module_param(max_vfs, uint, 0); | |
e8e9f696 JP |
130 | MODULE_PARM_DESC(max_vfs, |
131 | "Maximum number of virtual functions to allocate per physical function"); | |
1cdd1ec8 GR |
132 | #endif /* CONFIG_PCI_IOV */ |
133 | ||
9a799d71 AK |
134 | MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>"); |
135 | MODULE_DESCRIPTION("Intel(R) 10 Gigabit PCI Express Network Driver"); | |
136 | MODULE_LICENSE("GPL"); | |
137 | MODULE_VERSION(DRV_VERSION); | |
138 | ||
139 | #define DEFAULT_DEBUG_LEVEL_SHIFT 3 | |
140 | ||
7086400d AD |
141 | static void ixgbe_service_event_schedule(struct ixgbe_adapter *adapter) |
142 | { | |
143 | if (!test_bit(__IXGBE_DOWN, &adapter->state) && | |
144 | !test_and_set_bit(__IXGBE_SERVICE_SCHED, &adapter->state)) | |
145 | schedule_work(&adapter->service_task); | |
146 | } | |
147 | ||
148 | static void ixgbe_service_event_complete(struct ixgbe_adapter *adapter) | |
149 | { | |
150 | BUG_ON(!test_bit(__IXGBE_SERVICE_SCHED, &adapter->state)); | |
151 | ||
52f33af8 | 152 | /* flush memory to make sure state is correct before next watchdog */ |
7086400d AD |
153 | smp_mb__before_clear_bit(); |
154 | clear_bit(__IXGBE_SERVICE_SCHED, &adapter->state); | |
155 | } | |
156 | ||
dcd79aeb TI |
157 | struct ixgbe_reg_info { |
158 | u32 ofs; | |
159 | char *name; | |
160 | }; | |
161 | ||
162 | static const struct ixgbe_reg_info ixgbe_reg_info_tbl[] = { | |
163 | ||
164 | /* General Registers */ | |
165 | {IXGBE_CTRL, "CTRL"}, | |
166 | {IXGBE_STATUS, "STATUS"}, | |
167 | {IXGBE_CTRL_EXT, "CTRL_EXT"}, | |
168 | ||
169 | /* Interrupt Registers */ | |
170 | {IXGBE_EICR, "EICR"}, | |
171 | ||
172 | /* RX Registers */ | |
173 | {IXGBE_SRRCTL(0), "SRRCTL"}, | |
174 | {IXGBE_DCA_RXCTRL(0), "DRXCTL"}, | |
175 | {IXGBE_RDLEN(0), "RDLEN"}, | |
176 | {IXGBE_RDH(0), "RDH"}, | |
177 | {IXGBE_RDT(0), "RDT"}, | |
178 | {IXGBE_RXDCTL(0), "RXDCTL"}, | |
179 | {IXGBE_RDBAL(0), "RDBAL"}, | |
180 | {IXGBE_RDBAH(0), "RDBAH"}, | |
181 | ||
182 | /* TX Registers */ | |
183 | {IXGBE_TDBAL(0), "TDBAL"}, | |
184 | {IXGBE_TDBAH(0), "TDBAH"}, | |
185 | {IXGBE_TDLEN(0), "TDLEN"}, | |
186 | {IXGBE_TDH(0), "TDH"}, | |
187 | {IXGBE_TDT(0), "TDT"}, | |
188 | {IXGBE_TXDCTL(0), "TXDCTL"}, | |
189 | ||
190 | /* List Terminator */ | |
191 | {} | |
192 | }; | |
193 | ||
194 | ||
195 | /* | |
196 | * ixgbe_regdump - register printout routine | |
197 | */ | |
198 | static void ixgbe_regdump(struct ixgbe_hw *hw, struct ixgbe_reg_info *reginfo) | |
199 | { | |
200 | int i = 0, j = 0; | |
201 | char rname[16]; | |
202 | u32 regs[64]; | |
203 | ||
204 | switch (reginfo->ofs) { | |
205 | case IXGBE_SRRCTL(0): | |
206 | for (i = 0; i < 64; i++) | |
207 | regs[i] = IXGBE_READ_REG(hw, IXGBE_SRRCTL(i)); | |
208 | break; | |
209 | case IXGBE_DCA_RXCTRL(0): | |
210 | for (i = 0; i < 64; i++) | |
211 | regs[i] = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i)); | |
212 | break; | |
213 | case IXGBE_RDLEN(0): | |
214 | for (i = 0; i < 64; i++) | |
215 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDLEN(i)); | |
216 | break; | |
217 | case IXGBE_RDH(0): | |
218 | for (i = 0; i < 64; i++) | |
219 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDH(i)); | |
220 | break; | |
221 | case IXGBE_RDT(0): | |
222 | for (i = 0; i < 64; i++) | |
223 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDT(i)); | |
224 | break; | |
225 | case IXGBE_RXDCTL(0): | |
226 | for (i = 0; i < 64; i++) | |
227 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i)); | |
228 | break; | |
229 | case IXGBE_RDBAL(0): | |
230 | for (i = 0; i < 64; i++) | |
231 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDBAL(i)); | |
232 | break; | |
233 | case IXGBE_RDBAH(0): | |
234 | for (i = 0; i < 64; i++) | |
235 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDBAH(i)); | |
236 | break; | |
237 | case IXGBE_TDBAL(0): | |
238 | for (i = 0; i < 64; i++) | |
239 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDBAL(i)); | |
240 | break; | |
241 | case IXGBE_TDBAH(0): | |
242 | for (i = 0; i < 64; i++) | |
243 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDBAH(i)); | |
244 | break; | |
245 | case IXGBE_TDLEN(0): | |
246 | for (i = 0; i < 64; i++) | |
247 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDLEN(i)); | |
248 | break; | |
249 | case IXGBE_TDH(0): | |
250 | for (i = 0; i < 64; i++) | |
251 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDH(i)); | |
252 | break; | |
253 | case IXGBE_TDT(0): | |
254 | for (i = 0; i < 64; i++) | |
255 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDT(i)); | |
256 | break; | |
257 | case IXGBE_TXDCTL(0): | |
258 | for (i = 0; i < 64; i++) | |
259 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TXDCTL(i)); | |
260 | break; | |
261 | default: | |
c7689578 | 262 | pr_info("%-15s %08x\n", reginfo->name, |
dcd79aeb TI |
263 | IXGBE_READ_REG(hw, reginfo->ofs)); |
264 | return; | |
265 | } | |
266 | ||
267 | for (i = 0; i < 8; i++) { | |
268 | snprintf(rname, 16, "%s[%d-%d]", reginfo->name, i*8, i*8+7); | |
c7689578 | 269 | pr_err("%-15s", rname); |
dcd79aeb | 270 | for (j = 0; j < 8; j++) |
c7689578 JP |
271 | pr_cont(" %08x", regs[i*8+j]); |
272 | pr_cont("\n"); | |
dcd79aeb TI |
273 | } |
274 | ||
275 | } | |
276 | ||
277 | /* | |
278 | * ixgbe_dump - Print registers, tx-rings and rx-rings | |
279 | */ | |
280 | static void ixgbe_dump(struct ixgbe_adapter *adapter) | |
281 | { | |
282 | struct net_device *netdev = adapter->netdev; | |
283 | struct ixgbe_hw *hw = &adapter->hw; | |
284 | struct ixgbe_reg_info *reginfo; | |
285 | int n = 0; | |
286 | struct ixgbe_ring *tx_ring; | |
287 | struct ixgbe_tx_buffer *tx_buffer_info; | |
288 | union ixgbe_adv_tx_desc *tx_desc; | |
289 | struct my_u0 { u64 a; u64 b; } *u0; | |
290 | struct ixgbe_ring *rx_ring; | |
291 | union ixgbe_adv_rx_desc *rx_desc; | |
292 | struct ixgbe_rx_buffer *rx_buffer_info; | |
293 | u32 staterr; | |
294 | int i = 0; | |
295 | ||
296 | if (!netif_msg_hw(adapter)) | |
297 | return; | |
298 | ||
299 | /* Print netdevice Info */ | |
300 | if (netdev) { | |
301 | dev_info(&adapter->pdev->dev, "Net device Info\n"); | |
c7689578 | 302 | pr_info("Device Name state " |
dcd79aeb | 303 | "trans_start last_rx\n"); |
c7689578 JP |
304 | pr_info("%-15s %016lX %016lX %016lX\n", |
305 | netdev->name, | |
306 | netdev->state, | |
307 | netdev->trans_start, | |
308 | netdev->last_rx); | |
dcd79aeb TI |
309 | } |
310 | ||
311 | /* Print Registers */ | |
312 | dev_info(&adapter->pdev->dev, "Register Dump\n"); | |
c7689578 | 313 | pr_info(" Register Name Value\n"); |
dcd79aeb TI |
314 | for (reginfo = (struct ixgbe_reg_info *)ixgbe_reg_info_tbl; |
315 | reginfo->name; reginfo++) { | |
316 | ixgbe_regdump(hw, reginfo); | |
317 | } | |
318 | ||
319 | /* Print TX Ring Summary */ | |
320 | if (!netdev || !netif_running(netdev)) | |
321 | goto exit; | |
322 | ||
323 | dev_info(&adapter->pdev->dev, "TX Rings Summary\n"); | |
c7689578 | 324 | pr_info("Queue [NTU] [NTC] [bi(ntc)->dma ] leng ntw timestamp\n"); |
dcd79aeb TI |
325 | for (n = 0; n < adapter->num_tx_queues; n++) { |
326 | tx_ring = adapter->tx_ring[n]; | |
327 | tx_buffer_info = | |
328 | &tx_ring->tx_buffer_info[tx_ring->next_to_clean]; | |
d3d00239 | 329 | pr_info(" %5d %5X %5X %016llX %04X %p %016llX\n", |
dcd79aeb TI |
330 | n, tx_ring->next_to_use, tx_ring->next_to_clean, |
331 | (u64)tx_buffer_info->dma, | |
332 | tx_buffer_info->length, | |
333 | tx_buffer_info->next_to_watch, | |
334 | (u64)tx_buffer_info->time_stamp); | |
335 | } | |
336 | ||
337 | /* Print TX Rings */ | |
338 | if (!netif_msg_tx_done(adapter)) | |
339 | goto rx_ring_summary; | |
340 | ||
341 | dev_info(&adapter->pdev->dev, "TX Rings Dump\n"); | |
342 | ||
343 | /* Transmit Descriptor Formats | |
344 | * | |
345 | * Advanced Transmit Descriptor | |
346 | * +--------------------------------------------------------------+ | |
347 | * 0 | Buffer Address [63:0] | | |
348 | * +--------------------------------------------------------------+ | |
349 | * 8 | PAYLEN | PORTS | IDX | STA | DCMD |DTYP | RSV | DTALEN | | |
350 | * +--------------------------------------------------------------+ | |
351 | * 63 46 45 40 39 36 35 32 31 24 23 20 19 0 | |
352 | */ | |
353 | ||
354 | for (n = 0; n < adapter->num_tx_queues; n++) { | |
355 | tx_ring = adapter->tx_ring[n]; | |
c7689578 JP |
356 | pr_info("------------------------------------\n"); |
357 | pr_info("TX QUEUE INDEX = %d\n", tx_ring->queue_index); | |
358 | pr_info("------------------------------------\n"); | |
359 | pr_info("T [desc] [address 63:0 ] " | |
dcd79aeb TI |
360 | "[PlPOIdStDDt Ln] [bi->dma ] " |
361 | "leng ntw timestamp bi->skb\n"); | |
362 | ||
363 | for (i = 0; tx_ring->desc && (i < tx_ring->count); i++) { | |
31f05a2d | 364 | tx_desc = IXGBE_TX_DESC_ADV(tx_ring, i); |
dcd79aeb TI |
365 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; |
366 | u0 = (struct my_u0 *)tx_desc; | |
c7689578 | 367 | pr_info("T [0x%03X] %016llX %016llX %016llX" |
d3d00239 | 368 | " %04X %p %016llX %p", i, |
dcd79aeb TI |
369 | le64_to_cpu(u0->a), |
370 | le64_to_cpu(u0->b), | |
371 | (u64)tx_buffer_info->dma, | |
372 | tx_buffer_info->length, | |
373 | tx_buffer_info->next_to_watch, | |
374 | (u64)tx_buffer_info->time_stamp, | |
375 | tx_buffer_info->skb); | |
376 | if (i == tx_ring->next_to_use && | |
377 | i == tx_ring->next_to_clean) | |
c7689578 | 378 | pr_cont(" NTC/U\n"); |
dcd79aeb | 379 | else if (i == tx_ring->next_to_use) |
c7689578 | 380 | pr_cont(" NTU\n"); |
dcd79aeb | 381 | else if (i == tx_ring->next_to_clean) |
c7689578 | 382 | pr_cont(" NTC\n"); |
dcd79aeb | 383 | else |
c7689578 | 384 | pr_cont("\n"); |
dcd79aeb TI |
385 | |
386 | if (netif_msg_pktdata(adapter) && | |
387 | tx_buffer_info->dma != 0) | |
388 | print_hex_dump(KERN_INFO, "", | |
389 | DUMP_PREFIX_ADDRESS, 16, 1, | |
390 | phys_to_virt(tx_buffer_info->dma), | |
391 | tx_buffer_info->length, true); | |
392 | } | |
393 | } | |
394 | ||
395 | /* Print RX Rings Summary */ | |
396 | rx_ring_summary: | |
397 | dev_info(&adapter->pdev->dev, "RX Rings Summary\n"); | |
c7689578 | 398 | pr_info("Queue [NTU] [NTC]\n"); |
dcd79aeb TI |
399 | for (n = 0; n < adapter->num_rx_queues; n++) { |
400 | rx_ring = adapter->rx_ring[n]; | |
c7689578 JP |
401 | pr_info("%5d %5X %5X\n", |
402 | n, rx_ring->next_to_use, rx_ring->next_to_clean); | |
dcd79aeb TI |
403 | } |
404 | ||
405 | /* Print RX Rings */ | |
406 | if (!netif_msg_rx_status(adapter)) | |
407 | goto exit; | |
408 | ||
409 | dev_info(&adapter->pdev->dev, "RX Rings Dump\n"); | |
410 | ||
411 | /* Advanced Receive Descriptor (Read) Format | |
412 | * 63 1 0 | |
413 | * +-----------------------------------------------------+ | |
414 | * 0 | Packet Buffer Address [63:1] |A0/NSE| | |
415 | * +----------------------------------------------+------+ | |
416 | * 8 | Header Buffer Address [63:1] | DD | | |
417 | * +-----------------------------------------------------+ | |
418 | * | |
419 | * | |
420 | * Advanced Receive Descriptor (Write-Back) Format | |
421 | * | |
422 | * 63 48 47 32 31 30 21 20 16 15 4 3 0 | |
423 | * +------------------------------------------------------+ | |
424 | * 0 | Packet IP |SPH| HDR_LEN | RSV|Packet| RSS | | |
425 | * | Checksum Ident | | | | Type | Type | | |
426 | * +------------------------------------------------------+ | |
427 | * 8 | VLAN Tag | Length | Extended Error | Extended Status | | |
428 | * +------------------------------------------------------+ | |
429 | * 63 48 47 32 31 20 19 0 | |
430 | */ | |
431 | for (n = 0; n < adapter->num_rx_queues; n++) { | |
432 | rx_ring = adapter->rx_ring[n]; | |
c7689578 JP |
433 | pr_info("------------------------------------\n"); |
434 | pr_info("RX QUEUE INDEX = %d\n", rx_ring->queue_index); | |
435 | pr_info("------------------------------------\n"); | |
436 | pr_info("R [desc] [ PktBuf A0] " | |
dcd79aeb TI |
437 | "[ HeadBuf DD] [bi->dma ] [bi->skb] " |
438 | "<-- Adv Rx Read format\n"); | |
c7689578 | 439 | pr_info("RWB[desc] [PcsmIpSHl PtRs] " |
dcd79aeb TI |
440 | "[vl er S cks ln] ---------------- [bi->skb] " |
441 | "<-- Adv Rx Write-Back format\n"); | |
442 | ||
443 | for (i = 0; i < rx_ring->count; i++) { | |
444 | rx_buffer_info = &rx_ring->rx_buffer_info[i]; | |
31f05a2d | 445 | rx_desc = IXGBE_RX_DESC_ADV(rx_ring, i); |
dcd79aeb TI |
446 | u0 = (struct my_u0 *)rx_desc; |
447 | staterr = le32_to_cpu(rx_desc->wb.upper.status_error); | |
448 | if (staterr & IXGBE_RXD_STAT_DD) { | |
449 | /* Descriptor Done */ | |
c7689578 | 450 | pr_info("RWB[0x%03X] %016llX " |
dcd79aeb TI |
451 | "%016llX ---------------- %p", i, |
452 | le64_to_cpu(u0->a), | |
453 | le64_to_cpu(u0->b), | |
454 | rx_buffer_info->skb); | |
455 | } else { | |
c7689578 | 456 | pr_info("R [0x%03X] %016llX " |
dcd79aeb TI |
457 | "%016llX %016llX %p", i, |
458 | le64_to_cpu(u0->a), | |
459 | le64_to_cpu(u0->b), | |
460 | (u64)rx_buffer_info->dma, | |
461 | rx_buffer_info->skb); | |
462 | ||
463 | if (netif_msg_pktdata(adapter)) { | |
464 | print_hex_dump(KERN_INFO, "", | |
465 | DUMP_PREFIX_ADDRESS, 16, 1, | |
466 | phys_to_virt(rx_buffer_info->dma), | |
467 | rx_ring->rx_buf_len, true); | |
468 | ||
469 | if (rx_ring->rx_buf_len | |
919e78a6 | 470 | < IXGBE_RXBUFFER_2K) |
dcd79aeb TI |
471 | print_hex_dump(KERN_INFO, "", |
472 | DUMP_PREFIX_ADDRESS, 16, 1, | |
473 | phys_to_virt( | |
474 | rx_buffer_info->page_dma + | |
475 | rx_buffer_info->page_offset | |
476 | ), | |
477 | PAGE_SIZE/2, true); | |
478 | } | |
479 | } | |
480 | ||
481 | if (i == rx_ring->next_to_use) | |
c7689578 | 482 | pr_cont(" NTU\n"); |
dcd79aeb | 483 | else if (i == rx_ring->next_to_clean) |
c7689578 | 484 | pr_cont(" NTC\n"); |
dcd79aeb | 485 | else |
c7689578 | 486 | pr_cont("\n"); |
dcd79aeb TI |
487 | |
488 | } | |
489 | } | |
490 | ||
491 | exit: | |
492 | return; | |
493 | } | |
494 | ||
5eba3699 AV |
495 | static void ixgbe_release_hw_control(struct ixgbe_adapter *adapter) |
496 | { | |
497 | u32 ctrl_ext; | |
498 | ||
499 | /* Let firmware take over control of h/w */ | |
500 | ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT); | |
501 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT, | |
e8e9f696 | 502 | ctrl_ext & ~IXGBE_CTRL_EXT_DRV_LOAD); |
5eba3699 AV |
503 | } |
504 | ||
505 | static void ixgbe_get_hw_control(struct ixgbe_adapter *adapter) | |
506 | { | |
507 | u32 ctrl_ext; | |
508 | ||
509 | /* Let firmware know the driver has taken over */ | |
510 | ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT); | |
511 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT, | |
e8e9f696 | 512 | ctrl_ext | IXGBE_CTRL_EXT_DRV_LOAD); |
5eba3699 | 513 | } |
9a799d71 | 514 | |
e8e26350 PW |
515 | /* |
516 | * ixgbe_set_ivar - set the IVAR registers, mapping interrupt causes to vectors | |
517 | * @adapter: pointer to adapter struct | |
518 | * @direction: 0 for Rx, 1 for Tx, -1 for other causes | |
519 | * @queue: queue to map the corresponding interrupt to | |
520 | * @msix_vector: the vector to map to the corresponding queue | |
521 | * | |
522 | */ | |
523 | static void ixgbe_set_ivar(struct ixgbe_adapter *adapter, s8 direction, | |
e8e9f696 | 524 | u8 queue, u8 msix_vector) |
9a799d71 AK |
525 | { |
526 | u32 ivar, index; | |
e8e26350 PW |
527 | struct ixgbe_hw *hw = &adapter->hw; |
528 | switch (hw->mac.type) { | |
529 | case ixgbe_mac_82598EB: | |
530 | msix_vector |= IXGBE_IVAR_ALLOC_VAL; | |
531 | if (direction == -1) | |
532 | direction = 0; | |
533 | index = (((direction * 64) + queue) >> 2) & 0x1F; | |
534 | ivar = IXGBE_READ_REG(hw, IXGBE_IVAR(index)); | |
535 | ivar &= ~(0xFF << (8 * (queue & 0x3))); | |
536 | ivar |= (msix_vector << (8 * (queue & 0x3))); | |
537 | IXGBE_WRITE_REG(hw, IXGBE_IVAR(index), ivar); | |
538 | break; | |
539 | case ixgbe_mac_82599EB: | |
b93a2226 | 540 | case ixgbe_mac_X540: |
e8e26350 PW |
541 | if (direction == -1) { |
542 | /* other causes */ | |
543 | msix_vector |= IXGBE_IVAR_ALLOC_VAL; | |
544 | index = ((queue & 1) * 8); | |
545 | ivar = IXGBE_READ_REG(&adapter->hw, IXGBE_IVAR_MISC); | |
546 | ivar &= ~(0xFF << index); | |
547 | ivar |= (msix_vector << index); | |
548 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_IVAR_MISC, ivar); | |
549 | break; | |
550 | } else { | |
551 | /* tx or rx causes */ | |
552 | msix_vector |= IXGBE_IVAR_ALLOC_VAL; | |
553 | index = ((16 * (queue & 1)) + (8 * direction)); | |
554 | ivar = IXGBE_READ_REG(hw, IXGBE_IVAR(queue >> 1)); | |
555 | ivar &= ~(0xFF << index); | |
556 | ivar |= (msix_vector << index); | |
557 | IXGBE_WRITE_REG(hw, IXGBE_IVAR(queue >> 1), ivar); | |
558 | break; | |
559 | } | |
560 | default: | |
561 | break; | |
562 | } | |
9a799d71 AK |
563 | } |
564 | ||
fe49f04a | 565 | static inline void ixgbe_irq_rearm_queues(struct ixgbe_adapter *adapter, |
e8e9f696 | 566 | u64 qmask) |
fe49f04a AD |
567 | { |
568 | u32 mask; | |
569 | ||
bd508178 AD |
570 | switch (adapter->hw.mac.type) { |
571 | case ixgbe_mac_82598EB: | |
fe49f04a AD |
572 | mask = (IXGBE_EIMS_RTX_QUEUE & qmask); |
573 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS, mask); | |
bd508178 AD |
574 | break; |
575 | case ixgbe_mac_82599EB: | |
b93a2226 | 576 | case ixgbe_mac_X540: |
fe49f04a AD |
577 | mask = (qmask & 0xFFFFFFFF); |
578 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS_EX(0), mask); | |
579 | mask = (qmask >> 32); | |
580 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS_EX(1), mask); | |
bd508178 AD |
581 | break; |
582 | default: | |
583 | break; | |
fe49f04a AD |
584 | } |
585 | } | |
586 | ||
d3d00239 AD |
587 | static inline void ixgbe_unmap_tx_resource(struct ixgbe_ring *ring, |
588 | struct ixgbe_tx_buffer *tx_buffer) | |
9a799d71 | 589 | { |
d3d00239 AD |
590 | if (tx_buffer->dma) { |
591 | if (tx_buffer->tx_flags & IXGBE_TX_FLAGS_MAPPED_AS_PAGE) | |
592 | dma_unmap_page(ring->dev, | |
593 | tx_buffer->dma, | |
594 | tx_buffer->length, | |
595 | DMA_TO_DEVICE); | |
e5a43549 | 596 | else |
d3d00239 AD |
597 | dma_unmap_single(ring->dev, |
598 | tx_buffer->dma, | |
599 | tx_buffer->length, | |
600 | DMA_TO_DEVICE); | |
e5a43549 | 601 | } |
d3d00239 AD |
602 | tx_buffer->dma = 0; |
603 | } | |
604 | ||
605 | void ixgbe_unmap_and_free_tx_resource(struct ixgbe_ring *tx_ring, | |
606 | struct ixgbe_tx_buffer *tx_buffer_info) | |
607 | { | |
608 | ixgbe_unmap_tx_resource(tx_ring, tx_buffer_info); | |
609 | if (tx_buffer_info->skb) | |
9a799d71 | 610 | dev_kfree_skb_any(tx_buffer_info->skb); |
d3d00239 | 611 | tx_buffer_info->skb = NULL; |
9a799d71 AK |
612 | /* tx_buffer_info must be completely set up in the transmit path */ |
613 | } | |
614 | ||
c84d324c JF |
615 | static void ixgbe_update_xoff_received(struct ixgbe_adapter *adapter) |
616 | { | |
617 | struct ixgbe_hw *hw = &adapter->hw; | |
618 | struct ixgbe_hw_stats *hwstats = &adapter->stats; | |
619 | u32 data = 0; | |
620 | u32 xoff[8] = {0}; | |
621 | int i; | |
622 | ||
623 | if ((hw->fc.current_mode == ixgbe_fc_full) || | |
624 | (hw->fc.current_mode == ixgbe_fc_rx_pause)) { | |
625 | switch (hw->mac.type) { | |
626 | case ixgbe_mac_82598EB: | |
627 | data = IXGBE_READ_REG(hw, IXGBE_LXOFFRXC); | |
6837e895 PW |
628 | break; |
629 | default: | |
c84d324c JF |
630 | data = IXGBE_READ_REG(hw, IXGBE_LXOFFRXCNT); |
631 | } | |
632 | hwstats->lxoffrxc += data; | |
633 | ||
634 | /* refill credits (no tx hang) if we received xoff */ | |
635 | if (!data) | |
636 | return; | |
637 | ||
638 | for (i = 0; i < adapter->num_tx_queues; i++) | |
639 | clear_bit(__IXGBE_HANG_CHECK_ARMED, | |
640 | &adapter->tx_ring[i]->state); | |
641 | return; | |
642 | } else if (!(adapter->dcb_cfg.pfc_mode_enable)) | |
643 | return; | |
644 | ||
645 | /* update stats for each tc, only valid with PFC enabled */ | |
646 | for (i = 0; i < MAX_TX_PACKET_BUFFERS; i++) { | |
647 | switch (hw->mac.type) { | |
648 | case ixgbe_mac_82598EB: | |
649 | xoff[i] = IXGBE_READ_REG(hw, IXGBE_PXOFFRXC(i)); | |
bd508178 | 650 | break; |
c84d324c JF |
651 | default: |
652 | xoff[i] = IXGBE_READ_REG(hw, IXGBE_PXOFFRXCNT(i)); | |
26f23d82 | 653 | } |
c84d324c JF |
654 | hwstats->pxoffrxc[i] += xoff[i]; |
655 | } | |
656 | ||
657 | /* disarm tx queues that have received xoff frames */ | |
658 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
659 | struct ixgbe_ring *tx_ring = adapter->tx_ring[i]; | |
fb5475ff | 660 | u8 tc = tx_ring->dcb_tc; |
c84d324c JF |
661 | |
662 | if (xoff[tc]) | |
663 | clear_bit(__IXGBE_HANG_CHECK_ARMED, &tx_ring->state); | |
26f23d82 | 664 | } |
26f23d82 YZ |
665 | } |
666 | ||
c84d324c | 667 | static u64 ixgbe_get_tx_completed(struct ixgbe_ring *ring) |
9a799d71 | 668 | { |
c84d324c JF |
669 | return ring->tx_stats.completed; |
670 | } | |
671 | ||
672 | static u64 ixgbe_get_tx_pending(struct ixgbe_ring *ring) | |
673 | { | |
674 | struct ixgbe_adapter *adapter = netdev_priv(ring->netdev); | |
e01c31a5 | 675 | struct ixgbe_hw *hw = &adapter->hw; |
e01c31a5 | 676 | |
c84d324c JF |
677 | u32 head = IXGBE_READ_REG(hw, IXGBE_TDH(ring->reg_idx)); |
678 | u32 tail = IXGBE_READ_REG(hw, IXGBE_TDT(ring->reg_idx)); | |
679 | ||
680 | if (head != tail) | |
681 | return (head < tail) ? | |
682 | tail - head : (tail + ring->count - head); | |
683 | ||
684 | return 0; | |
685 | } | |
686 | ||
687 | static inline bool ixgbe_check_tx_hang(struct ixgbe_ring *tx_ring) | |
688 | { | |
689 | u32 tx_done = ixgbe_get_tx_completed(tx_ring); | |
690 | u32 tx_done_old = tx_ring->tx_stats.tx_done_old; | |
691 | u32 tx_pending = ixgbe_get_tx_pending(tx_ring); | |
692 | bool ret = false; | |
693 | ||
7d637bcc | 694 | clear_check_for_tx_hang(tx_ring); |
c84d324c JF |
695 | |
696 | /* | |
697 | * Check for a hung queue, but be thorough. This verifies | |
698 | * that a transmit has been completed since the previous | |
699 | * check AND there is at least one packet pending. The | |
700 | * ARMED bit is set to indicate a potential hang. The | |
701 | * bit is cleared if a pause frame is received to remove | |
702 | * false hang detection due to PFC or 802.3x frames. By | |
703 | * requiring this to fail twice we avoid races with | |
704 | * pfc clearing the ARMED bit and conditions where we | |
705 | * run the check_tx_hang logic with a transmit completion | |
706 | * pending but without time to complete it yet. | |
707 | */ | |
708 | if ((tx_done_old == tx_done) && tx_pending) { | |
709 | /* make sure it is true for two checks in a row */ | |
710 | ret = test_and_set_bit(__IXGBE_HANG_CHECK_ARMED, | |
711 | &tx_ring->state); | |
712 | } else { | |
713 | /* update completed stats and continue */ | |
714 | tx_ring->tx_stats.tx_done_old = tx_done; | |
715 | /* reset the countdown */ | |
716 | clear_bit(__IXGBE_HANG_CHECK_ARMED, &tx_ring->state); | |
9a799d71 AK |
717 | } |
718 | ||
c84d324c | 719 | return ret; |
9a799d71 AK |
720 | } |
721 | ||
c83c6cbd AD |
722 | /** |
723 | * ixgbe_tx_timeout_reset - initiate reset due to Tx timeout | |
724 | * @adapter: driver private struct | |
725 | **/ | |
726 | static void ixgbe_tx_timeout_reset(struct ixgbe_adapter *adapter) | |
727 | { | |
728 | ||
729 | /* Do the reset outside of interrupt context */ | |
730 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { | |
731 | adapter->flags2 |= IXGBE_FLAG2_RESET_REQUESTED; | |
732 | ixgbe_service_event_schedule(adapter); | |
733 | } | |
734 | } | |
e01c31a5 | 735 | |
9a799d71 AK |
736 | /** |
737 | * ixgbe_clean_tx_irq - Reclaim resources after transmit completes | |
fe49f04a | 738 | * @q_vector: structure containing interrupt and ring information |
e01c31a5 | 739 | * @tx_ring: tx ring to clean |
9a799d71 | 740 | **/ |
fe49f04a | 741 | static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector, |
e8e9f696 | 742 | struct ixgbe_ring *tx_ring) |
9a799d71 | 743 | { |
fe49f04a | 744 | struct ixgbe_adapter *adapter = q_vector->adapter; |
d3d00239 AD |
745 | struct ixgbe_tx_buffer *tx_buffer; |
746 | union ixgbe_adv_tx_desc *tx_desc; | |
e01c31a5 | 747 | unsigned int total_bytes = 0, total_packets = 0; |
59224555 | 748 | unsigned int budget = q_vector->tx.work_limit; |
d3d00239 | 749 | u16 i = tx_ring->next_to_clean; |
9a799d71 | 750 | |
d3d00239 AD |
751 | tx_buffer = &tx_ring->tx_buffer_info[i]; |
752 | tx_desc = IXGBE_TX_DESC_ADV(tx_ring, i); | |
12207e49 | 753 | |
30065e63 | 754 | for (; budget; budget--) { |
d3d00239 AD |
755 | union ixgbe_adv_tx_desc *eop_desc = tx_buffer->next_to_watch; |
756 | ||
757 | /* if next_to_watch is not set then there is no work pending */ | |
758 | if (!eop_desc) | |
759 | break; | |
760 | ||
761 | /* if DD is not set pending work has not been completed */ | |
762 | if (!(eop_desc->wb.status & cpu_to_le32(IXGBE_TXD_STAT_DD))) | |
763 | break; | |
8ad494b0 | 764 | |
d3d00239 AD |
765 | /* count the packet as being completed */ |
766 | tx_ring->tx_stats.completed++; | |
767 | ||
768 | /* clear next_to_watch to prevent false hangs */ | |
769 | tx_buffer->next_to_watch = NULL; | |
8ad494b0 | 770 | |
d3d00239 AD |
771 | /* prevent any other reads prior to eop_desc being verified */ |
772 | rmb(); | |
773 | ||
774 | do { | |
775 | ixgbe_unmap_tx_resource(tx_ring, tx_buffer); | |
8ad494b0 | 776 | tx_desc->wb.status = 0; |
d3d00239 AD |
777 | if (likely(tx_desc == eop_desc)) { |
778 | eop_desc = NULL; | |
779 | dev_kfree_skb_any(tx_buffer->skb); | |
780 | tx_buffer->skb = NULL; | |
781 | ||
782 | total_bytes += tx_buffer->bytecount; | |
783 | total_packets += tx_buffer->gso_segs; | |
784 | } | |
9a799d71 | 785 | |
d3d00239 AD |
786 | tx_buffer++; |
787 | tx_desc++; | |
8ad494b0 | 788 | i++; |
d3d00239 | 789 | if (unlikely(i == tx_ring->count)) { |
8ad494b0 | 790 | i = 0; |
e01c31a5 | 791 | |
d3d00239 AD |
792 | tx_buffer = tx_ring->tx_buffer_info; |
793 | tx_desc = IXGBE_TX_DESC_ADV(tx_ring, 0); | |
e092be60 | 794 | } |
e01c31a5 | 795 | |
d3d00239 | 796 | } while (eop_desc); |
12207e49 PWJ |
797 | } |
798 | ||
9a799d71 | 799 | tx_ring->next_to_clean = i; |
d3d00239 | 800 | u64_stats_update_begin(&tx_ring->syncp); |
b953799e | 801 | tx_ring->stats.bytes += total_bytes; |
bd198058 | 802 | tx_ring->stats.packets += total_packets; |
d3d00239 | 803 | u64_stats_update_end(&tx_ring->syncp); |
bd198058 AD |
804 | q_vector->tx.total_bytes += total_bytes; |
805 | q_vector->tx.total_packets += total_packets; | |
b953799e | 806 | |
c84d324c JF |
807 | if (check_for_tx_hang(tx_ring) && ixgbe_check_tx_hang(tx_ring)) { |
808 | /* schedule immediate reset if we believe we hung */ | |
809 | struct ixgbe_hw *hw = &adapter->hw; | |
d3d00239 | 810 | tx_desc = IXGBE_TX_DESC_ADV(tx_ring, i); |
c84d324c JF |
811 | e_err(drv, "Detected Tx Unit Hang\n" |
812 | " Tx Queue <%d>\n" | |
813 | " TDH, TDT <%x>, <%x>\n" | |
814 | " next_to_use <%x>\n" | |
815 | " next_to_clean <%x>\n" | |
816 | "tx_buffer_info[next_to_clean]\n" | |
817 | " time_stamp <%lx>\n" | |
818 | " jiffies <%lx>\n", | |
819 | tx_ring->queue_index, | |
820 | IXGBE_READ_REG(hw, IXGBE_TDH(tx_ring->reg_idx)), | |
821 | IXGBE_READ_REG(hw, IXGBE_TDT(tx_ring->reg_idx)), | |
d3d00239 AD |
822 | tx_ring->next_to_use, i, |
823 | tx_ring->tx_buffer_info[i].time_stamp, jiffies); | |
c84d324c JF |
824 | |
825 | netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index); | |
826 | ||
827 | e_info(probe, | |
828 | "tx hang %d detected on queue %d, resetting adapter\n", | |
829 | adapter->tx_timeout_count + 1, tx_ring->queue_index); | |
830 | ||
b953799e | 831 | /* schedule immediate reset if we believe we hung */ |
c83c6cbd | 832 | ixgbe_tx_timeout_reset(adapter); |
b953799e AD |
833 | |
834 | /* the adapter is about to reset, no point in enabling stuff */ | |
59224555 | 835 | return true; |
b953799e | 836 | } |
9a799d71 | 837 | |
e092be60 | 838 | #define TX_WAKE_THRESHOLD (DESC_NEEDED * 2) |
30065e63 | 839 | if (unlikely(total_packets && netif_carrier_ok(tx_ring->netdev) && |
7d4987de | 840 | (ixgbe_desc_unused(tx_ring) >= TX_WAKE_THRESHOLD))) { |
e092be60 AV |
841 | /* Make sure that anybody stopping the queue after this |
842 | * sees the new next_to_clean. | |
843 | */ | |
844 | smp_mb(); | |
fc77dc3c | 845 | if (__netif_subqueue_stopped(tx_ring->netdev, tx_ring->queue_index) && |
30eba97a | 846 | !test_bit(__IXGBE_DOWN, &adapter->state)) { |
fc77dc3c | 847 | netif_wake_subqueue(tx_ring->netdev, tx_ring->queue_index); |
5b7da515 | 848 | ++tx_ring->tx_stats.restart_queue; |
30eba97a | 849 | } |
e092be60 | 850 | } |
9a799d71 | 851 | |
59224555 | 852 | return !!budget; |
9a799d71 AK |
853 | } |
854 | ||
5dd2d332 | 855 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd | 856 | static void ixgbe_update_rx_dca(struct ixgbe_adapter *adapter, |
33cf09c9 AD |
857 | struct ixgbe_ring *rx_ring, |
858 | int cpu) | |
bd0362dd | 859 | { |
33cf09c9 | 860 | struct ixgbe_hw *hw = &adapter->hw; |
bd0362dd | 861 | u32 rxctrl; |
33cf09c9 AD |
862 | u8 reg_idx = rx_ring->reg_idx; |
863 | ||
864 | rxctrl = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(reg_idx)); | |
865 | switch (hw->mac.type) { | |
866 | case ixgbe_mac_82598EB: | |
867 | rxctrl &= ~IXGBE_DCA_RXCTRL_CPUID_MASK; | |
263a84e7 | 868 | rxctrl |= dca3_get_tag(rx_ring->dev, cpu); |
33cf09c9 AD |
869 | break; |
870 | case ixgbe_mac_82599EB: | |
b93a2226 | 871 | case ixgbe_mac_X540: |
33cf09c9 | 872 | rxctrl &= ~IXGBE_DCA_RXCTRL_CPUID_MASK_82599; |
263a84e7 | 873 | rxctrl |= (dca3_get_tag(rx_ring->dev, cpu) << |
33cf09c9 AD |
874 | IXGBE_DCA_RXCTRL_CPUID_SHIFT_82599); |
875 | break; | |
876 | default: | |
877 | break; | |
bd0362dd | 878 | } |
33cf09c9 AD |
879 | rxctrl |= IXGBE_DCA_RXCTRL_DESC_DCA_EN; |
880 | rxctrl |= IXGBE_DCA_RXCTRL_HEAD_DCA_EN; | |
881 | rxctrl &= ~(IXGBE_DCA_RXCTRL_DESC_RRO_EN); | |
33cf09c9 | 882 | IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(reg_idx), rxctrl); |
bd0362dd JC |
883 | } |
884 | ||
885 | static void ixgbe_update_tx_dca(struct ixgbe_adapter *adapter, | |
33cf09c9 AD |
886 | struct ixgbe_ring *tx_ring, |
887 | int cpu) | |
bd0362dd | 888 | { |
33cf09c9 | 889 | struct ixgbe_hw *hw = &adapter->hw; |
bd0362dd | 890 | u32 txctrl; |
33cf09c9 AD |
891 | u8 reg_idx = tx_ring->reg_idx; |
892 | ||
893 | switch (hw->mac.type) { | |
894 | case ixgbe_mac_82598EB: | |
895 | txctrl = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL(reg_idx)); | |
896 | txctrl &= ~IXGBE_DCA_TXCTRL_CPUID_MASK; | |
263a84e7 | 897 | txctrl |= dca3_get_tag(tx_ring->dev, cpu); |
33cf09c9 | 898 | txctrl |= IXGBE_DCA_TXCTRL_DESC_DCA_EN; |
33cf09c9 AD |
899 | IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL(reg_idx), txctrl); |
900 | break; | |
901 | case ixgbe_mac_82599EB: | |
b93a2226 | 902 | case ixgbe_mac_X540: |
33cf09c9 AD |
903 | txctrl = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL_82599(reg_idx)); |
904 | txctrl &= ~IXGBE_DCA_TXCTRL_CPUID_MASK_82599; | |
263a84e7 | 905 | txctrl |= (dca3_get_tag(tx_ring->dev, cpu) << |
33cf09c9 AD |
906 | IXGBE_DCA_TXCTRL_CPUID_SHIFT_82599); |
907 | txctrl |= IXGBE_DCA_TXCTRL_DESC_DCA_EN; | |
33cf09c9 AD |
908 | IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL_82599(reg_idx), txctrl); |
909 | break; | |
910 | default: | |
911 | break; | |
912 | } | |
913 | } | |
914 | ||
915 | static void ixgbe_update_dca(struct ixgbe_q_vector *q_vector) | |
916 | { | |
917 | struct ixgbe_adapter *adapter = q_vector->adapter; | |
efe3d3c8 | 918 | struct ixgbe_ring *ring; |
bd0362dd | 919 | int cpu = get_cpu(); |
bd0362dd | 920 | |
33cf09c9 AD |
921 | if (q_vector->cpu == cpu) |
922 | goto out_no_update; | |
923 | ||
efe3d3c8 AD |
924 | for (ring = q_vector->tx.ring; ring != NULL; ring = ring->next) |
925 | ixgbe_update_tx_dca(adapter, ring, cpu); | |
33cf09c9 | 926 | |
efe3d3c8 AD |
927 | for (ring = q_vector->rx.ring; ring != NULL; ring = ring->next) |
928 | ixgbe_update_rx_dca(adapter, ring, cpu); | |
33cf09c9 AD |
929 | |
930 | q_vector->cpu = cpu; | |
931 | out_no_update: | |
bd0362dd JC |
932 | put_cpu(); |
933 | } | |
934 | ||
935 | static void ixgbe_setup_dca(struct ixgbe_adapter *adapter) | |
936 | { | |
33cf09c9 | 937 | int num_q_vectors; |
bd0362dd JC |
938 | int i; |
939 | ||
940 | if (!(adapter->flags & IXGBE_FLAG_DCA_ENABLED)) | |
941 | return; | |
942 | ||
e35ec126 AD |
943 | /* always use CB2 mode, difference is masked in the CB driver */ |
944 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, 2); | |
945 | ||
33cf09c9 AD |
946 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) |
947 | num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; | |
948 | else | |
949 | num_q_vectors = 1; | |
950 | ||
951 | for (i = 0; i < num_q_vectors; i++) { | |
952 | adapter->q_vector[i]->cpu = -1; | |
953 | ixgbe_update_dca(adapter->q_vector[i]); | |
bd0362dd JC |
954 | } |
955 | } | |
956 | ||
957 | static int __ixgbe_notify_dca(struct device *dev, void *data) | |
958 | { | |
c60fbb00 | 959 | struct ixgbe_adapter *adapter = dev_get_drvdata(dev); |
bd0362dd JC |
960 | unsigned long event = *(unsigned long *)data; |
961 | ||
2a72c31e | 962 | if (!(adapter->flags & IXGBE_FLAG_DCA_CAPABLE)) |
33cf09c9 AD |
963 | return 0; |
964 | ||
bd0362dd JC |
965 | switch (event) { |
966 | case DCA_PROVIDER_ADD: | |
96b0e0f6 JB |
967 | /* if we're already enabled, don't do it again */ |
968 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) | |
969 | break; | |
652f093f | 970 | if (dca_add_requester(dev) == 0) { |
96b0e0f6 | 971 | adapter->flags |= IXGBE_FLAG_DCA_ENABLED; |
bd0362dd JC |
972 | ixgbe_setup_dca(adapter); |
973 | break; | |
974 | } | |
975 | /* Fall Through since DCA is disabled. */ | |
976 | case DCA_PROVIDER_REMOVE: | |
977 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) { | |
978 | dca_remove_requester(dev); | |
979 | adapter->flags &= ~IXGBE_FLAG_DCA_ENABLED; | |
980 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, 1); | |
981 | } | |
982 | break; | |
983 | } | |
984 | ||
652f093f | 985 | return 0; |
bd0362dd | 986 | } |
5dd2d332 | 987 | #endif /* CONFIG_IXGBE_DCA */ |
67a74ee2 ET |
988 | |
989 | static inline void ixgbe_rx_hash(union ixgbe_adv_rx_desc *rx_desc, | |
990 | struct sk_buff *skb) | |
991 | { | |
992 | skb->rxhash = le32_to_cpu(rx_desc->wb.lower.hi_dword.rss); | |
993 | } | |
994 | ||
ff886dfc AD |
995 | /** |
996 | * ixgbe_rx_is_fcoe - check the rx desc for incoming pkt type | |
997 | * @adapter: address of board private structure | |
998 | * @rx_desc: advanced rx descriptor | |
999 | * | |
1000 | * Returns : true if it is FCoE pkt | |
1001 | */ | |
1002 | static inline bool ixgbe_rx_is_fcoe(struct ixgbe_adapter *adapter, | |
1003 | union ixgbe_adv_rx_desc *rx_desc) | |
1004 | { | |
1005 | __le16 pkt_info = rx_desc->wb.lower.lo_dword.hs_rss.pkt_info; | |
1006 | ||
1007 | return (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) && | |
1008 | ((pkt_info & cpu_to_le16(IXGBE_RXDADV_PKTTYPE_ETQF_MASK)) == | |
1009 | (cpu_to_le16(IXGBE_ETQF_FILTER_FCOE << | |
1010 | IXGBE_RXDADV_PKTTYPE_ETQF_SHIFT))); | |
1011 | } | |
1012 | ||
9a799d71 AK |
1013 | /** |
1014 | * ixgbe_receive_skb - Send a completed packet up the stack | |
1015 | * @adapter: board private structure | |
1016 | * @skb: packet to send up | |
177db6ff MC |
1017 | * @status: hardware indication of status of receive |
1018 | * @rx_ring: rx descriptor ring (for a specific queue) to setup | |
1019 | * @rx_desc: rx descriptor | |
9a799d71 | 1020 | **/ |
78b6f4ce | 1021 | static void ixgbe_receive_skb(struct ixgbe_q_vector *q_vector, |
e8e9f696 JP |
1022 | struct sk_buff *skb, u8 status, |
1023 | struct ixgbe_ring *ring, | |
1024 | union ixgbe_adv_rx_desc *rx_desc) | |
9a799d71 | 1025 | { |
78b6f4ce HX |
1026 | struct ixgbe_adapter *adapter = q_vector->adapter; |
1027 | struct napi_struct *napi = &q_vector->napi; | |
177db6ff MC |
1028 | bool is_vlan = (status & IXGBE_RXD_STAT_VP); |
1029 | u16 tag = le16_to_cpu(rx_desc->wb.upper.vlan); | |
9a799d71 | 1030 | |
f62bbb5e JG |
1031 | if (is_vlan && (tag & VLAN_VID_MASK)) |
1032 | __vlan_hwaccel_put_tag(skb, tag); | |
1033 | ||
1034 | if (!(adapter->flags & IXGBE_FLAG_IN_NETPOLL)) | |
1035 | napi_gro_receive(napi, skb); | |
1036 | else | |
1037 | netif_rx(skb); | |
9a799d71 AK |
1038 | } |
1039 | ||
e59bd25d AV |
1040 | /** |
1041 | * ixgbe_rx_checksum - indicate in skb if hw indicated a good cksum | |
1042 | * @adapter: address of board private structure | |
1043 | * @status_err: hardware indication of status of receive | |
1044 | * @skb: skb currently being received and modified | |
ff886dfc | 1045 | * @status_err: status error value of last descriptor in packet |
e59bd25d | 1046 | **/ |
9a799d71 | 1047 | static inline void ixgbe_rx_checksum(struct ixgbe_adapter *adapter, |
8bae1b2b | 1048 | union ixgbe_adv_rx_desc *rx_desc, |
ff886dfc AD |
1049 | struct sk_buff *skb, |
1050 | u32 status_err) | |
9a799d71 | 1051 | { |
ff886dfc | 1052 | skb->ip_summed = CHECKSUM_NONE; |
9a799d71 | 1053 | |
712744be JB |
1054 | /* Rx csum disabled */ |
1055 | if (!(adapter->flags & IXGBE_FLAG_RX_CSUM_ENABLED)) | |
9a799d71 | 1056 | return; |
e59bd25d AV |
1057 | |
1058 | /* if IP and error */ | |
1059 | if ((status_err & IXGBE_RXD_STAT_IPCS) && | |
1060 | (status_err & IXGBE_RXDADV_ERR_IPE)) { | |
9a799d71 AK |
1061 | adapter->hw_csum_rx_error++; |
1062 | return; | |
1063 | } | |
e59bd25d AV |
1064 | |
1065 | if (!(status_err & IXGBE_RXD_STAT_L4CS)) | |
1066 | return; | |
1067 | ||
1068 | if (status_err & IXGBE_RXDADV_ERR_TCPE) { | |
8bae1b2b DS |
1069 | u16 pkt_info = rx_desc->wb.lower.lo_dword.hs_rss.pkt_info; |
1070 | ||
1071 | /* | |
1072 | * 82599 errata, UDP frames with a 0 checksum can be marked as | |
1073 | * checksum errors. | |
1074 | */ | |
1075 | if ((pkt_info & IXGBE_RXDADV_PKTTYPE_UDP) && | |
1076 | (adapter->hw.mac.type == ixgbe_mac_82599EB)) | |
1077 | return; | |
1078 | ||
e59bd25d AV |
1079 | adapter->hw_csum_rx_error++; |
1080 | return; | |
1081 | } | |
1082 | ||
9a799d71 | 1083 | /* It must be a TCP or UDP packet with a valid checksum */ |
e59bd25d | 1084 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
9a799d71 AK |
1085 | } |
1086 | ||
84ea2591 | 1087 | static inline void ixgbe_release_rx_desc(struct ixgbe_ring *rx_ring, u32 val) |
e8e26350 PW |
1088 | { |
1089 | /* | |
1090 | * Force memory writes to complete before letting h/w | |
1091 | * know there are new descriptors to fetch. (Only | |
1092 | * applicable for weak-ordered memory model archs, | |
1093 | * such as IA-64). | |
1094 | */ | |
1095 | wmb(); | |
84ea2591 | 1096 | writel(val, rx_ring->tail); |
e8e26350 PW |
1097 | } |
1098 | ||
9a799d71 AK |
1099 | /** |
1100 | * ixgbe_alloc_rx_buffers - Replace used receive buffers; packet split | |
fc77dc3c AD |
1101 | * @rx_ring: ring to place buffers on |
1102 | * @cleaned_count: number of buffers to replace | |
9a799d71 | 1103 | **/ |
fc77dc3c | 1104 | void ixgbe_alloc_rx_buffers(struct ixgbe_ring *rx_ring, u16 cleaned_count) |
9a799d71 | 1105 | { |
9a799d71 | 1106 | union ixgbe_adv_rx_desc *rx_desc; |
3a581073 | 1107 | struct ixgbe_rx_buffer *bi; |
d5f398ed AD |
1108 | struct sk_buff *skb; |
1109 | u16 i = rx_ring->next_to_use; | |
9a799d71 | 1110 | |
fc77dc3c AD |
1111 | /* do nothing if no valid netdev defined */ |
1112 | if (!rx_ring->netdev) | |
1113 | return; | |
1114 | ||
9a799d71 | 1115 | while (cleaned_count--) { |
31f05a2d | 1116 | rx_desc = IXGBE_RX_DESC_ADV(rx_ring, i); |
d5f398ed AD |
1117 | bi = &rx_ring->rx_buffer_info[i]; |
1118 | skb = bi->skb; | |
9a799d71 | 1119 | |
d5f398ed | 1120 | if (!skb) { |
fc77dc3c | 1121 | skb = netdev_alloc_skb_ip_align(rx_ring->netdev, |
d5f398ed | 1122 | rx_ring->rx_buf_len); |
9a799d71 | 1123 | if (!skb) { |
5b7da515 | 1124 | rx_ring->rx_stats.alloc_rx_buff_failed++; |
9a799d71 AK |
1125 | goto no_buffers; |
1126 | } | |
d716a7d8 AD |
1127 | /* initialize queue mapping */ |
1128 | skb_record_rx_queue(skb, rx_ring->queue_index); | |
d5f398ed | 1129 | bi->skb = skb; |
d716a7d8 | 1130 | } |
9a799d71 | 1131 | |
d716a7d8 | 1132 | if (!bi->dma) { |
b6ec895e | 1133 | bi->dma = dma_map_single(rx_ring->dev, |
d5f398ed | 1134 | skb->data, |
e8e9f696 | 1135 | rx_ring->rx_buf_len, |
1b507730 | 1136 | DMA_FROM_DEVICE); |
b6ec895e | 1137 | if (dma_mapping_error(rx_ring->dev, bi->dma)) { |
5b7da515 | 1138 | rx_ring->rx_stats.alloc_rx_buff_failed++; |
d5f398ed AD |
1139 | bi->dma = 0; |
1140 | goto no_buffers; | |
1141 | } | |
9a799d71 | 1142 | } |
d5f398ed | 1143 | |
7d637bcc | 1144 | if (ring_is_ps_enabled(rx_ring)) { |
d5f398ed | 1145 | if (!bi->page) { |
1f2149c1 | 1146 | bi->page = alloc_page(GFP_ATOMIC | __GFP_COLD); |
d5f398ed | 1147 | if (!bi->page) { |
5b7da515 | 1148 | rx_ring->rx_stats.alloc_rx_page_failed++; |
d5f398ed AD |
1149 | goto no_buffers; |
1150 | } | |
1151 | } | |
1152 | ||
1153 | if (!bi->page_dma) { | |
1154 | /* use a half page if we're re-using */ | |
1155 | bi->page_offset ^= PAGE_SIZE / 2; | |
b6ec895e | 1156 | bi->page_dma = dma_map_page(rx_ring->dev, |
d5f398ed AD |
1157 | bi->page, |
1158 | bi->page_offset, | |
1159 | PAGE_SIZE / 2, | |
1160 | DMA_FROM_DEVICE); | |
b6ec895e | 1161 | if (dma_mapping_error(rx_ring->dev, |
d5f398ed | 1162 | bi->page_dma)) { |
5b7da515 | 1163 | rx_ring->rx_stats.alloc_rx_page_failed++; |
d5f398ed AD |
1164 | bi->page_dma = 0; |
1165 | goto no_buffers; | |
1166 | } | |
1167 | } | |
1168 | ||
1169 | /* Refresh the desc even if buffer_addrs didn't change | |
1170 | * because each write-back erases this info. */ | |
3a581073 JB |
1171 | rx_desc->read.pkt_addr = cpu_to_le64(bi->page_dma); |
1172 | rx_desc->read.hdr_addr = cpu_to_le64(bi->dma); | |
9a799d71 | 1173 | } else { |
3a581073 | 1174 | rx_desc->read.pkt_addr = cpu_to_le64(bi->dma); |
84418e3b | 1175 | rx_desc->read.hdr_addr = 0; |
9a799d71 AK |
1176 | } |
1177 | ||
1178 | i++; | |
1179 | if (i == rx_ring->count) | |
1180 | i = 0; | |
9a799d71 | 1181 | } |
7c6e0a43 | 1182 | |
9a799d71 AK |
1183 | no_buffers: |
1184 | if (rx_ring->next_to_use != i) { | |
1185 | rx_ring->next_to_use = i; | |
84ea2591 | 1186 | ixgbe_release_rx_desc(rx_ring, i); |
9a799d71 AK |
1187 | } |
1188 | } | |
1189 | ||
c267fc16 | 1190 | static inline u16 ixgbe_get_hlen(union ixgbe_adv_rx_desc *rx_desc) |
7c6e0a43 | 1191 | { |
c267fc16 AD |
1192 | /* HW will not DMA in data larger than the given buffer, even if it |
1193 | * parses the (NFS, of course) header to be larger. In that case, it | |
1194 | * fills the header buffer and spills the rest into the page. | |
1195 | */ | |
1196 | u16 hdr_info = le16_to_cpu(rx_desc->wb.lower.lo_dword.hs_rss.hdr_info); | |
1197 | u16 hlen = (hdr_info & IXGBE_RXDADV_HDRBUFLEN_MASK) >> | |
1198 | IXGBE_RXDADV_HDRBUFLEN_SHIFT; | |
1199 | if (hlen > IXGBE_RX_HDR_SIZE) | |
1200 | hlen = IXGBE_RX_HDR_SIZE; | |
1201 | return hlen; | |
7c6e0a43 JB |
1202 | } |
1203 | ||
f8212f97 AD |
1204 | /** |
1205 | * ixgbe_transform_rsc_queue - change rsc queue into a full packet | |
1206 | * @skb: pointer to the last skb in the rsc queue | |
1207 | * | |
1208 | * This function changes a queue full of hw rsc buffers into a completed | |
1209 | * packet. It uses the ->prev pointers to find the first packet and then | |
1210 | * turns it into the frag list owner. | |
1211 | **/ | |
aa80175a | 1212 | static inline struct sk_buff *ixgbe_transform_rsc_queue(struct sk_buff *skb) |
f8212f97 AD |
1213 | { |
1214 | unsigned int frag_list_size = 0; | |
aa80175a | 1215 | unsigned int skb_cnt = 1; |
f8212f97 AD |
1216 | |
1217 | while (skb->prev) { | |
1218 | struct sk_buff *prev = skb->prev; | |
1219 | frag_list_size += skb->len; | |
1220 | skb->prev = NULL; | |
1221 | skb = prev; | |
aa80175a | 1222 | skb_cnt++; |
f8212f97 AD |
1223 | } |
1224 | ||
1225 | skb_shinfo(skb)->frag_list = skb->next; | |
1226 | skb->next = NULL; | |
1227 | skb->len += frag_list_size; | |
1228 | skb->data_len += frag_list_size; | |
1229 | skb->truesize += frag_list_size; | |
aa80175a AD |
1230 | IXGBE_RSC_CB(skb)->skb_cnt = skb_cnt; |
1231 | ||
f8212f97 AD |
1232 | return skb; |
1233 | } | |
1234 | ||
aa80175a AD |
1235 | static inline bool ixgbe_get_rsc_state(union ixgbe_adv_rx_desc *rx_desc) |
1236 | { | |
1237 | return !!(le32_to_cpu(rx_desc->wb.lower.lo_dword.data) & | |
1238 | IXGBE_RXDADV_RSCCNT_MASK); | |
1239 | } | |
43634e82 | 1240 | |
4ff7fb12 | 1241 | static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector, |
e8e9f696 | 1242 | struct ixgbe_ring *rx_ring, |
4ff7fb12 | 1243 | int budget) |
9a799d71 | 1244 | { |
78b6f4ce | 1245 | struct ixgbe_adapter *adapter = q_vector->adapter; |
9a799d71 AK |
1246 | union ixgbe_adv_rx_desc *rx_desc, *next_rxd; |
1247 | struct ixgbe_rx_buffer *rx_buffer_info, *next_buffer; | |
1248 | struct sk_buff *skb; | |
d2f4fbe2 | 1249 | unsigned int total_rx_bytes = 0, total_rx_packets = 0; |
c267fc16 | 1250 | const int current_node = numa_node_id(); |
3d8fd385 YZ |
1251 | #ifdef IXGBE_FCOE |
1252 | int ddp_bytes = 0; | |
1253 | #endif /* IXGBE_FCOE */ | |
c267fc16 AD |
1254 | u32 staterr; |
1255 | u16 i; | |
1256 | u16 cleaned_count = 0; | |
aa80175a | 1257 | bool pkt_is_rsc = false; |
9a799d71 AK |
1258 | |
1259 | i = rx_ring->next_to_clean; | |
31f05a2d | 1260 | rx_desc = IXGBE_RX_DESC_ADV(rx_ring, i); |
9a799d71 | 1261 | staterr = le32_to_cpu(rx_desc->wb.upper.status_error); |
9a799d71 AK |
1262 | |
1263 | while (staterr & IXGBE_RXD_STAT_DD) { | |
7c6e0a43 | 1264 | u32 upper_len = 0; |
9a799d71 | 1265 | |
3c945e5b | 1266 | rmb(); /* read descriptor and rx_buffer_info after status DD */ |
9a799d71 | 1267 | |
c267fc16 AD |
1268 | rx_buffer_info = &rx_ring->rx_buffer_info[i]; |
1269 | ||
9a799d71 | 1270 | skb = rx_buffer_info->skb; |
9a799d71 | 1271 | rx_buffer_info->skb = NULL; |
c267fc16 | 1272 | prefetch(skb->data); |
9a799d71 | 1273 | |
c267fc16 | 1274 | if (ring_is_rsc_enabled(rx_ring)) |
aa80175a | 1275 | pkt_is_rsc = ixgbe_get_rsc_state(rx_desc); |
c267fc16 | 1276 | |
b811ce91 JB |
1277 | /* linear means we are building an skb from multiple pages */ |
1278 | if (!skb_is_nonlinear(skb)) { | |
c267fc16 | 1279 | u16 hlen; |
aa80175a | 1280 | if (pkt_is_rsc && |
c267fc16 AD |
1281 | !(staterr & IXGBE_RXD_STAT_EOP) && |
1282 | !skb->prev) { | |
43634e82 MC |
1283 | /* |
1284 | * When HWRSC is enabled, delay unmapping | |
1285 | * of the first packet. It carries the | |
1286 | * header information, HW may still | |
1287 | * access the header after the writeback. | |
1288 | * Only unmap it when EOP is reached | |
1289 | */ | |
e8171aaa | 1290 | IXGBE_RSC_CB(skb)->delay_unmap = true; |
43634e82 | 1291 | IXGBE_RSC_CB(skb)->dma = rx_buffer_info->dma; |
e8171aaa | 1292 | } else { |
b6ec895e | 1293 | dma_unmap_single(rx_ring->dev, |
e8e9f696 JP |
1294 | rx_buffer_info->dma, |
1295 | rx_ring->rx_buf_len, | |
1296 | DMA_FROM_DEVICE); | |
e8171aaa | 1297 | } |
4f57ca6e | 1298 | rx_buffer_info->dma = 0; |
c267fc16 AD |
1299 | |
1300 | if (ring_is_ps_enabled(rx_ring)) { | |
1301 | hlen = ixgbe_get_hlen(rx_desc); | |
1302 | upper_len = le16_to_cpu(rx_desc->wb.upper.length); | |
1303 | } else { | |
1304 | hlen = le16_to_cpu(rx_desc->wb.upper.length); | |
1305 | } | |
1306 | ||
1307 | skb_put(skb, hlen); | |
1308 | } else { | |
1309 | /* assume packet split since header is unmapped */ | |
1310 | upper_len = le16_to_cpu(rx_desc->wb.upper.length); | |
9a799d71 AK |
1311 | } |
1312 | ||
1313 | if (upper_len) { | |
b6ec895e AD |
1314 | dma_unmap_page(rx_ring->dev, |
1315 | rx_buffer_info->page_dma, | |
1316 | PAGE_SIZE / 2, | |
1317 | DMA_FROM_DEVICE); | |
9a799d71 AK |
1318 | rx_buffer_info->page_dma = 0; |
1319 | skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags, | |
e8e9f696 JP |
1320 | rx_buffer_info->page, |
1321 | rx_buffer_info->page_offset, | |
1322 | upper_len); | |
762f4c57 | 1323 | |
c267fc16 AD |
1324 | if ((page_count(rx_buffer_info->page) == 1) && |
1325 | (page_to_nid(rx_buffer_info->page) == current_node)) | |
762f4c57 | 1326 | get_page(rx_buffer_info->page); |
c267fc16 AD |
1327 | else |
1328 | rx_buffer_info->page = NULL; | |
9a799d71 AK |
1329 | |
1330 | skb->len += upper_len; | |
1331 | skb->data_len += upper_len; | |
98130646 | 1332 | skb->truesize += PAGE_SIZE / 2; |
9a799d71 AK |
1333 | } |
1334 | ||
1335 | i++; | |
1336 | if (i == rx_ring->count) | |
1337 | i = 0; | |
9a799d71 | 1338 | |
31f05a2d | 1339 | next_rxd = IXGBE_RX_DESC_ADV(rx_ring, i); |
9a799d71 | 1340 | prefetch(next_rxd); |
9a799d71 | 1341 | cleaned_count++; |
f8212f97 | 1342 | |
aa80175a | 1343 | if (pkt_is_rsc) { |
f8212f97 AD |
1344 | u32 nextp = (staterr & IXGBE_RXDADV_NEXTP_MASK) >> |
1345 | IXGBE_RXDADV_NEXTP_SHIFT; | |
1346 | next_buffer = &rx_ring->rx_buffer_info[nextp]; | |
f8212f97 AD |
1347 | } else { |
1348 | next_buffer = &rx_ring->rx_buffer_info[i]; | |
1349 | } | |
1350 | ||
c267fc16 | 1351 | if (!(staterr & IXGBE_RXD_STAT_EOP)) { |
7d637bcc | 1352 | if (ring_is_ps_enabled(rx_ring)) { |
f8212f97 AD |
1353 | rx_buffer_info->skb = next_buffer->skb; |
1354 | rx_buffer_info->dma = next_buffer->dma; | |
1355 | next_buffer->skb = skb; | |
1356 | next_buffer->dma = 0; | |
1357 | } else { | |
1358 | skb->next = next_buffer->skb; | |
1359 | skb->next->prev = skb; | |
1360 | } | |
5b7da515 | 1361 | rx_ring->rx_stats.non_eop_descs++; |
9a799d71 AK |
1362 | goto next_desc; |
1363 | } | |
1364 | ||
aa80175a AD |
1365 | if (skb->prev) { |
1366 | skb = ixgbe_transform_rsc_queue(skb); | |
1367 | /* if we got here without RSC the packet is invalid */ | |
1368 | if (!pkt_is_rsc) { | |
1369 | __pskb_trim(skb, 0); | |
1370 | rx_buffer_info->skb = skb; | |
1371 | goto next_desc; | |
1372 | } | |
1373 | } | |
c267fc16 AD |
1374 | |
1375 | if (ring_is_rsc_enabled(rx_ring)) { | |
1376 | if (IXGBE_RSC_CB(skb)->delay_unmap) { | |
1377 | dma_unmap_single(rx_ring->dev, | |
1378 | IXGBE_RSC_CB(skb)->dma, | |
1379 | rx_ring->rx_buf_len, | |
1380 | DMA_FROM_DEVICE); | |
1381 | IXGBE_RSC_CB(skb)->dma = 0; | |
1382 | IXGBE_RSC_CB(skb)->delay_unmap = false; | |
1383 | } | |
aa80175a AD |
1384 | } |
1385 | if (pkt_is_rsc) { | |
c267fc16 AD |
1386 | if (ring_is_ps_enabled(rx_ring)) |
1387 | rx_ring->rx_stats.rsc_count += | |
aa80175a | 1388 | skb_shinfo(skb)->nr_frags; |
c267fc16 | 1389 | else |
aa80175a AD |
1390 | rx_ring->rx_stats.rsc_count += |
1391 | IXGBE_RSC_CB(skb)->skb_cnt; | |
c267fc16 AD |
1392 | rx_ring->rx_stats.rsc_flush++; |
1393 | } | |
1394 | ||
1395 | /* ERR_MASK will only have valid bits if EOP set */ | |
ff886dfc AD |
1396 | if (unlikely(staterr & IXGBE_RXDADV_ERR_FRAME_ERR_MASK)) { |
1397 | dev_kfree_skb_any(skb); | |
9a799d71 AK |
1398 | goto next_desc; |
1399 | } | |
1400 | ||
ff886dfc | 1401 | ixgbe_rx_checksum(adapter, rx_desc, skb, staterr); |
67a74ee2 ET |
1402 | if (adapter->netdev->features & NETIF_F_RXHASH) |
1403 | ixgbe_rx_hash(rx_desc, skb); | |
d2f4fbe2 AV |
1404 | |
1405 | /* probably a little skewed due to removing CRC */ | |
1406 | total_rx_bytes += skb->len; | |
1407 | total_rx_packets++; | |
1408 | ||
fc77dc3c | 1409 | skb->protocol = eth_type_trans(skb, rx_ring->netdev); |
332d4a7d YZ |
1410 | #ifdef IXGBE_FCOE |
1411 | /* if ddp, not passing to ULD unless for FCP_RSP or error */ | |
ff886dfc AD |
1412 | if (ixgbe_rx_is_fcoe(adapter, rx_desc)) { |
1413 | ddp_bytes = ixgbe_fcoe_ddp(adapter, rx_desc, skb, | |
1414 | staterr); | |
63d635b2 AD |
1415 | if (!ddp_bytes) { |
1416 | dev_kfree_skb_any(skb); | |
332d4a7d | 1417 | goto next_desc; |
63d635b2 | 1418 | } |
3d8fd385 | 1419 | } |
332d4a7d | 1420 | #endif /* IXGBE_FCOE */ |
fdaff1ce | 1421 | ixgbe_receive_skb(q_vector, skb, staterr, rx_ring, rx_desc); |
9a799d71 | 1422 | |
4ff7fb12 | 1423 | budget--; |
9a799d71 AK |
1424 | next_desc: |
1425 | rx_desc->wb.upper.status_error = 0; | |
1426 | ||
4ff7fb12 | 1427 | if (!budget) |
c267fc16 AD |
1428 | break; |
1429 | ||
9a799d71 AK |
1430 | /* return some buffers to hardware, one at a time is too slow */ |
1431 | if (cleaned_count >= IXGBE_RX_BUFFER_WRITE) { | |
fc77dc3c | 1432 | ixgbe_alloc_rx_buffers(rx_ring, cleaned_count); |
9a799d71 AK |
1433 | cleaned_count = 0; |
1434 | } | |
1435 | ||
1436 | /* use prefetched values */ | |
1437 | rx_desc = next_rxd; | |
9a799d71 | 1438 | staterr = le32_to_cpu(rx_desc->wb.upper.status_error); |
177db6ff MC |
1439 | } |
1440 | ||
9a799d71 | 1441 | rx_ring->next_to_clean = i; |
7d4987de | 1442 | cleaned_count = ixgbe_desc_unused(rx_ring); |
9a799d71 AK |
1443 | |
1444 | if (cleaned_count) | |
fc77dc3c | 1445 | ixgbe_alloc_rx_buffers(rx_ring, cleaned_count); |
9a799d71 | 1446 | |
3d8fd385 YZ |
1447 | #ifdef IXGBE_FCOE |
1448 | /* include DDPed FCoE data */ | |
1449 | if (ddp_bytes > 0) { | |
1450 | unsigned int mss; | |
1451 | ||
fc77dc3c | 1452 | mss = rx_ring->netdev->mtu - sizeof(struct fcoe_hdr) - |
3d8fd385 YZ |
1453 | sizeof(struct fc_frame_header) - |
1454 | sizeof(struct fcoe_crc_eof); | |
1455 | if (mss > 512) | |
1456 | mss &= ~511; | |
1457 | total_rx_bytes += ddp_bytes; | |
1458 | total_rx_packets += DIV_ROUND_UP(ddp_bytes, mss); | |
1459 | } | |
1460 | #endif /* IXGBE_FCOE */ | |
1461 | ||
c267fc16 AD |
1462 | u64_stats_update_begin(&rx_ring->syncp); |
1463 | rx_ring->stats.packets += total_rx_packets; | |
1464 | rx_ring->stats.bytes += total_rx_bytes; | |
1465 | u64_stats_update_end(&rx_ring->syncp); | |
bd198058 AD |
1466 | q_vector->rx.total_packets += total_rx_packets; |
1467 | q_vector->rx.total_bytes += total_rx_bytes; | |
4ff7fb12 AD |
1468 | |
1469 | return !!budget; | |
9a799d71 AK |
1470 | } |
1471 | ||
9a799d71 AK |
1472 | /** |
1473 | * ixgbe_configure_msix - Configure MSI-X hardware | |
1474 | * @adapter: board private structure | |
1475 | * | |
1476 | * ixgbe_configure_msix sets up the hardware to properly generate MSI-X | |
1477 | * interrupts. | |
1478 | **/ | |
1479 | static void ixgbe_configure_msix(struct ixgbe_adapter *adapter) | |
1480 | { | |
021230d4 | 1481 | struct ixgbe_q_vector *q_vector; |
efe3d3c8 | 1482 | int q_vectors, v_idx; |
021230d4 | 1483 | u32 mask; |
9a799d71 | 1484 | |
021230d4 | 1485 | q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; |
9a799d71 | 1486 | |
8e34d1aa AD |
1487 | /* Populate MSIX to EITR Select */ |
1488 | if (adapter->num_vfs > 32) { | |
1489 | u32 eitrsel = (1 << (adapter->num_vfs - 32)) - 1; | |
1490 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, eitrsel); | |
1491 | } | |
1492 | ||
4df10466 JB |
1493 | /* |
1494 | * Populate the IVAR table and set the ITR values to the | |
021230d4 AV |
1495 | * corresponding register. |
1496 | */ | |
1497 | for (v_idx = 0; v_idx < q_vectors; v_idx++) { | |
efe3d3c8 | 1498 | struct ixgbe_ring *ring; |
7a921c93 | 1499 | q_vector = adapter->q_vector[v_idx]; |
021230d4 | 1500 | |
efe3d3c8 AD |
1501 | for (ring = q_vector->rx.ring; ring != NULL; ring = ring->next) |
1502 | ixgbe_set_ivar(adapter, 0, ring->reg_idx, v_idx); | |
1503 | ||
1504 | for (ring = q_vector->tx.ring; ring != NULL; ring = ring->next) | |
1505 | ixgbe_set_ivar(adapter, 1, ring->reg_idx, v_idx); | |
1506 | ||
d5bf4f67 ET |
1507 | if (q_vector->tx.ring && !q_vector->rx.ring) { |
1508 | /* tx only vector */ | |
1509 | if (adapter->tx_itr_setting == 1) | |
1510 | q_vector->itr = IXGBE_10K_ITR; | |
1511 | else | |
1512 | q_vector->itr = adapter->tx_itr_setting; | |
1513 | } else { | |
1514 | /* rx or rx/tx vector */ | |
1515 | if (adapter->rx_itr_setting == 1) | |
1516 | q_vector->itr = IXGBE_20K_ITR; | |
1517 | else | |
1518 | q_vector->itr = adapter->rx_itr_setting; | |
1519 | } | |
021230d4 | 1520 | |
fe49f04a | 1521 | ixgbe_write_eitr(q_vector); |
9a799d71 AK |
1522 | } |
1523 | ||
bd508178 AD |
1524 | switch (adapter->hw.mac.type) { |
1525 | case ixgbe_mac_82598EB: | |
e8e26350 | 1526 | ixgbe_set_ivar(adapter, -1, IXGBE_IVAR_OTHER_CAUSES_INDEX, |
e8e9f696 | 1527 | v_idx); |
bd508178 AD |
1528 | break; |
1529 | case ixgbe_mac_82599EB: | |
b93a2226 | 1530 | case ixgbe_mac_X540: |
e8e26350 | 1531 | ixgbe_set_ivar(adapter, -1, 1, v_idx); |
bd508178 | 1532 | break; |
bd508178 AD |
1533 | default: |
1534 | break; | |
1535 | } | |
021230d4 AV |
1536 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITR(v_idx), 1950); |
1537 | ||
41fb9248 | 1538 | /* set up to autoclear timer, and the vectors */ |
021230d4 | 1539 | mask = IXGBE_EIMS_ENABLE_MASK; |
d5bf4f67 ET |
1540 | mask &= ~(IXGBE_EIMS_OTHER | |
1541 | IXGBE_EIMS_MAILBOX | | |
1542 | IXGBE_EIMS_LSC); | |
1543 | ||
021230d4 | 1544 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIAC, mask); |
9a799d71 AK |
1545 | } |
1546 | ||
f494e8fa AV |
1547 | enum latency_range { |
1548 | lowest_latency = 0, | |
1549 | low_latency = 1, | |
1550 | bulk_latency = 2, | |
1551 | latency_invalid = 255 | |
1552 | }; | |
1553 | ||
1554 | /** | |
1555 | * ixgbe_update_itr - update the dynamic ITR value based on statistics | |
bd198058 AD |
1556 | * @q_vector: structure containing interrupt and ring information |
1557 | * @ring_container: structure containing ring performance data | |
f494e8fa AV |
1558 | * |
1559 | * Stores a new ITR value based on packets and byte | |
1560 | * counts during the last interrupt. The advantage of per interrupt | |
1561 | * computation is faster updates and more accurate ITR for the current | |
1562 | * traffic pattern. Constants in this function were computed | |
1563 | * based on theoretical maximum wire speed and thresholds were set based | |
1564 | * on testing data as well as attempting to minimize response time | |
1565 | * while increasing bulk throughput. | |
1566 | * this functionality is controlled by the InterruptThrottleRate module | |
1567 | * parameter (see ixgbe_param.c) | |
1568 | **/ | |
bd198058 AD |
1569 | static void ixgbe_update_itr(struct ixgbe_q_vector *q_vector, |
1570 | struct ixgbe_ring_container *ring_container) | |
f494e8fa | 1571 | { |
f494e8fa | 1572 | u64 bytes_perint; |
bd198058 AD |
1573 | struct ixgbe_adapter *adapter = q_vector->adapter; |
1574 | int bytes = ring_container->total_bytes; | |
1575 | int packets = ring_container->total_packets; | |
1576 | u32 timepassed_us; | |
1577 | u8 itr_setting = ring_container->itr; | |
f494e8fa AV |
1578 | |
1579 | if (packets == 0) | |
bd198058 | 1580 | return; |
f494e8fa AV |
1581 | |
1582 | /* simple throttlerate management | |
1583 | * 0-20MB/s lowest (100000 ints/s) | |
1584 | * 20-100MB/s low (20000 ints/s) | |
1585 | * 100-1249MB/s bulk (8000 ints/s) | |
1586 | */ | |
1587 | /* what was last interrupt timeslice? */ | |
d5bf4f67 | 1588 | timepassed_us = q_vector->itr >> 2; |
f494e8fa AV |
1589 | bytes_perint = bytes / timepassed_us; /* bytes/usec */ |
1590 | ||
1591 | switch (itr_setting) { | |
1592 | case lowest_latency: | |
1593 | if (bytes_perint > adapter->eitr_low) | |
bd198058 | 1594 | itr_setting = low_latency; |
f494e8fa AV |
1595 | break; |
1596 | case low_latency: | |
1597 | if (bytes_perint > adapter->eitr_high) | |
bd198058 | 1598 | itr_setting = bulk_latency; |
f494e8fa | 1599 | else if (bytes_perint <= adapter->eitr_low) |
bd198058 | 1600 | itr_setting = lowest_latency; |
f494e8fa AV |
1601 | break; |
1602 | case bulk_latency: | |
1603 | if (bytes_perint <= adapter->eitr_high) | |
bd198058 | 1604 | itr_setting = low_latency; |
f494e8fa AV |
1605 | break; |
1606 | } | |
1607 | ||
bd198058 AD |
1608 | /* clear work counters since we have the values we need */ |
1609 | ring_container->total_bytes = 0; | |
1610 | ring_container->total_packets = 0; | |
1611 | ||
1612 | /* write updated itr to ring container */ | |
1613 | ring_container->itr = itr_setting; | |
f494e8fa AV |
1614 | } |
1615 | ||
509ee935 JB |
1616 | /** |
1617 | * ixgbe_write_eitr - write EITR register in hardware specific way | |
fe49f04a | 1618 | * @q_vector: structure containing interrupt and ring information |
509ee935 JB |
1619 | * |
1620 | * This function is made to be called by ethtool and by the driver | |
1621 | * when it needs to update EITR registers at runtime. Hardware | |
1622 | * specific quirks/differences are taken care of here. | |
1623 | */ | |
fe49f04a | 1624 | void ixgbe_write_eitr(struct ixgbe_q_vector *q_vector) |
509ee935 | 1625 | { |
fe49f04a | 1626 | struct ixgbe_adapter *adapter = q_vector->adapter; |
509ee935 | 1627 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a | 1628 | int v_idx = q_vector->v_idx; |
d5bf4f67 | 1629 | u32 itr_reg = q_vector->itr; |
fe49f04a | 1630 | |
bd508178 AD |
1631 | switch (adapter->hw.mac.type) { |
1632 | case ixgbe_mac_82598EB: | |
509ee935 JB |
1633 | /* must write high and low 16 bits to reset counter */ |
1634 | itr_reg |= (itr_reg << 16); | |
bd508178 AD |
1635 | break; |
1636 | case ixgbe_mac_82599EB: | |
b93a2226 | 1637 | case ixgbe_mac_X540: |
509ee935 JB |
1638 | /* |
1639 | * set the WDIS bit to not clear the timer bits and cause an | |
1640 | * immediate assertion of the interrupt | |
1641 | */ | |
1642 | itr_reg |= IXGBE_EITR_CNT_WDIS; | |
bd508178 AD |
1643 | break; |
1644 | default: | |
1645 | break; | |
509ee935 JB |
1646 | } |
1647 | IXGBE_WRITE_REG(hw, IXGBE_EITR(v_idx), itr_reg); | |
1648 | } | |
1649 | ||
bd198058 | 1650 | static void ixgbe_set_itr(struct ixgbe_q_vector *q_vector) |
f494e8fa | 1651 | { |
d5bf4f67 | 1652 | u32 new_itr = q_vector->itr; |
bd198058 | 1653 | u8 current_itr; |
f494e8fa | 1654 | |
bd198058 AD |
1655 | ixgbe_update_itr(q_vector, &q_vector->tx); |
1656 | ixgbe_update_itr(q_vector, &q_vector->rx); | |
f494e8fa | 1657 | |
08c8833b | 1658 | current_itr = max(q_vector->rx.itr, q_vector->tx.itr); |
f494e8fa AV |
1659 | |
1660 | switch (current_itr) { | |
1661 | /* counts and packets in update_itr are dependent on these numbers */ | |
1662 | case lowest_latency: | |
d5bf4f67 | 1663 | new_itr = IXGBE_100K_ITR; |
f494e8fa AV |
1664 | break; |
1665 | case low_latency: | |
d5bf4f67 | 1666 | new_itr = IXGBE_20K_ITR; |
f494e8fa AV |
1667 | break; |
1668 | case bulk_latency: | |
d5bf4f67 | 1669 | new_itr = IXGBE_8K_ITR; |
f494e8fa | 1670 | break; |
bd198058 AD |
1671 | default: |
1672 | break; | |
f494e8fa AV |
1673 | } |
1674 | ||
d5bf4f67 | 1675 | if (new_itr != q_vector->itr) { |
fe49f04a | 1676 | /* do an exponential smoothing */ |
d5bf4f67 ET |
1677 | new_itr = (10 * new_itr * q_vector->itr) / |
1678 | ((9 * new_itr) + q_vector->itr); | |
509ee935 | 1679 | |
bd198058 | 1680 | /* save the algorithm value here */ |
d5bf4f67 | 1681 | q_vector->itr = new_itr & IXGBE_MAX_EITR; |
fe49f04a AD |
1682 | |
1683 | ixgbe_write_eitr(q_vector); | |
f494e8fa | 1684 | } |
f494e8fa AV |
1685 | } |
1686 | ||
119fc60a | 1687 | /** |
f0f9778d AD |
1688 | * ixgbe_check_overtemp_subtask - check for over tempurature |
1689 | * @adapter: pointer to adapter | |
119fc60a | 1690 | **/ |
f0f9778d | 1691 | static void ixgbe_check_overtemp_subtask(struct ixgbe_adapter *adapter) |
119fc60a | 1692 | { |
119fc60a MC |
1693 | struct ixgbe_hw *hw = &adapter->hw; |
1694 | u32 eicr = adapter->interrupt_event; | |
1695 | ||
f0f9778d | 1696 | if (test_bit(__IXGBE_DOWN, &adapter->state)) |
7ca647bd JP |
1697 | return; |
1698 | ||
f0f9778d AD |
1699 | if (!(adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) && |
1700 | !(adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_EVENT)) | |
1701 | return; | |
1702 | ||
1703 | adapter->flags2 &= ~IXGBE_FLAG2_TEMP_SENSOR_EVENT; | |
1704 | ||
7ca647bd | 1705 | switch (hw->device_id) { |
f0f9778d AD |
1706 | case IXGBE_DEV_ID_82599_T3_LOM: |
1707 | /* | |
1708 | * Since the warning interrupt is for both ports | |
1709 | * we don't have to check if: | |
1710 | * - This interrupt wasn't for our port. | |
1711 | * - We may have missed the interrupt so always have to | |
1712 | * check if we got a LSC | |
1713 | */ | |
1714 | if (!(eicr & IXGBE_EICR_GPI_SDP0) && | |
1715 | !(eicr & IXGBE_EICR_LSC)) | |
1716 | return; | |
1717 | ||
1718 | if (!(eicr & IXGBE_EICR_LSC) && hw->mac.ops.check_link) { | |
1719 | u32 autoneg; | |
1720 | bool link_up = false; | |
7ca647bd | 1721 | |
7ca647bd JP |
1722 | hw->mac.ops.check_link(hw, &autoneg, &link_up, false); |
1723 | ||
f0f9778d AD |
1724 | if (link_up) |
1725 | return; | |
1726 | } | |
1727 | ||
1728 | /* Check if this is not due to overtemp */ | |
1729 | if (hw->phy.ops.check_overtemp(hw) != IXGBE_ERR_OVERTEMP) | |
1730 | return; | |
1731 | ||
1732 | break; | |
7ca647bd JP |
1733 | default: |
1734 | if (!(eicr & IXGBE_EICR_GPI_SDP0)) | |
119fc60a | 1735 | return; |
7ca647bd | 1736 | break; |
119fc60a | 1737 | } |
7ca647bd JP |
1738 | e_crit(drv, |
1739 | "Network adapter has been stopped because it has over heated. " | |
1740 | "Restart the computer. If the problem persists, " | |
1741 | "power off the system and replace the adapter\n"); | |
f0f9778d AD |
1742 | |
1743 | adapter->interrupt_event = 0; | |
119fc60a MC |
1744 | } |
1745 | ||
0befdb3e JB |
1746 | static void ixgbe_check_fan_failure(struct ixgbe_adapter *adapter, u32 eicr) |
1747 | { | |
1748 | struct ixgbe_hw *hw = &adapter->hw; | |
1749 | ||
1750 | if ((adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) && | |
1751 | (eicr & IXGBE_EICR_GPI_SDP1)) { | |
396e799c | 1752 | e_crit(probe, "Fan has stopped, replace the adapter\n"); |
0befdb3e JB |
1753 | /* write to clear the interrupt */ |
1754 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP1); | |
1755 | } | |
1756 | } | |
cf8280ee | 1757 | |
4f51bf70 JK |
1758 | static void ixgbe_check_overtemp_event(struct ixgbe_adapter *adapter, u32 eicr) |
1759 | { | |
1760 | if (!(adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE)) | |
1761 | return; | |
1762 | ||
1763 | switch (adapter->hw.mac.type) { | |
1764 | case ixgbe_mac_82599EB: | |
1765 | /* | |
1766 | * Need to check link state so complete overtemp check | |
1767 | * on service task | |
1768 | */ | |
1769 | if (((eicr & IXGBE_EICR_GPI_SDP0) || (eicr & IXGBE_EICR_LSC)) && | |
1770 | (!test_bit(__IXGBE_DOWN, &adapter->state))) { | |
1771 | adapter->interrupt_event = eicr; | |
1772 | adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_EVENT; | |
1773 | ixgbe_service_event_schedule(adapter); | |
1774 | return; | |
1775 | } | |
1776 | return; | |
1777 | case ixgbe_mac_X540: | |
1778 | if (!(eicr & IXGBE_EICR_TS)) | |
1779 | return; | |
1780 | break; | |
1781 | default: | |
1782 | return; | |
1783 | } | |
1784 | ||
1785 | e_crit(drv, | |
1786 | "Network adapter has been stopped because it has over heated. " | |
1787 | "Restart the computer. If the problem persists, " | |
1788 | "power off the system and replace the adapter\n"); | |
1789 | } | |
1790 | ||
e8e26350 PW |
1791 | static void ixgbe_check_sfp_event(struct ixgbe_adapter *adapter, u32 eicr) |
1792 | { | |
1793 | struct ixgbe_hw *hw = &adapter->hw; | |
1794 | ||
73c4b7cd AD |
1795 | if (eicr & IXGBE_EICR_GPI_SDP2) { |
1796 | /* Clear the interrupt */ | |
1797 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP2); | |
7086400d AD |
1798 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { |
1799 | adapter->flags2 |= IXGBE_FLAG2_SFP_NEEDS_RESET; | |
1800 | ixgbe_service_event_schedule(adapter); | |
1801 | } | |
73c4b7cd AD |
1802 | } |
1803 | ||
e8e26350 PW |
1804 | if (eicr & IXGBE_EICR_GPI_SDP1) { |
1805 | /* Clear the interrupt */ | |
1806 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP1); | |
7086400d AD |
1807 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { |
1808 | adapter->flags |= IXGBE_FLAG_NEED_LINK_CONFIG; | |
1809 | ixgbe_service_event_schedule(adapter); | |
1810 | } | |
e8e26350 PW |
1811 | } |
1812 | } | |
1813 | ||
cf8280ee JB |
1814 | static void ixgbe_check_lsc(struct ixgbe_adapter *adapter) |
1815 | { | |
1816 | struct ixgbe_hw *hw = &adapter->hw; | |
1817 | ||
1818 | adapter->lsc_int++; | |
1819 | adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; | |
1820 | adapter->link_check_timeout = jiffies; | |
1821 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { | |
1822 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_EIMC_LSC); | |
8a0717f3 | 1823 | IXGBE_WRITE_FLUSH(hw); |
93c52dd0 | 1824 | ixgbe_service_event_schedule(adapter); |
cf8280ee JB |
1825 | } |
1826 | } | |
1827 | ||
fe49f04a AD |
1828 | static inline void ixgbe_irq_enable_queues(struct ixgbe_adapter *adapter, |
1829 | u64 qmask) | |
1830 | { | |
1831 | u32 mask; | |
bd508178 | 1832 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a | 1833 | |
bd508178 AD |
1834 | switch (hw->mac.type) { |
1835 | case ixgbe_mac_82598EB: | |
fe49f04a | 1836 | mask = (IXGBE_EIMS_RTX_QUEUE & qmask); |
bd508178 AD |
1837 | IXGBE_WRITE_REG(hw, IXGBE_EIMS, mask); |
1838 | break; | |
1839 | case ixgbe_mac_82599EB: | |
b93a2226 | 1840 | case ixgbe_mac_X540: |
fe49f04a | 1841 | mask = (qmask & 0xFFFFFFFF); |
bd508178 AD |
1842 | if (mask) |
1843 | IXGBE_WRITE_REG(hw, IXGBE_EIMS_EX(0), mask); | |
fe49f04a | 1844 | mask = (qmask >> 32); |
bd508178 AD |
1845 | if (mask) |
1846 | IXGBE_WRITE_REG(hw, IXGBE_EIMS_EX(1), mask); | |
1847 | break; | |
1848 | default: | |
1849 | break; | |
fe49f04a AD |
1850 | } |
1851 | /* skip the flush */ | |
1852 | } | |
1853 | ||
1854 | static inline void ixgbe_irq_disable_queues(struct ixgbe_adapter *adapter, | |
e8e9f696 | 1855 | u64 qmask) |
fe49f04a AD |
1856 | { |
1857 | u32 mask; | |
bd508178 | 1858 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a | 1859 | |
bd508178 AD |
1860 | switch (hw->mac.type) { |
1861 | case ixgbe_mac_82598EB: | |
fe49f04a | 1862 | mask = (IXGBE_EIMS_RTX_QUEUE & qmask); |
bd508178 AD |
1863 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, mask); |
1864 | break; | |
1865 | case ixgbe_mac_82599EB: | |
b93a2226 | 1866 | case ixgbe_mac_X540: |
fe49f04a | 1867 | mask = (qmask & 0xFFFFFFFF); |
bd508178 AD |
1868 | if (mask) |
1869 | IXGBE_WRITE_REG(hw, IXGBE_EIMC_EX(0), mask); | |
fe49f04a | 1870 | mask = (qmask >> 32); |
bd508178 AD |
1871 | if (mask) |
1872 | IXGBE_WRITE_REG(hw, IXGBE_EIMC_EX(1), mask); | |
1873 | break; | |
1874 | default: | |
1875 | break; | |
fe49f04a AD |
1876 | } |
1877 | /* skip the flush */ | |
1878 | } | |
1879 | ||
021230d4 | 1880 | /** |
2c4af694 AD |
1881 | * ixgbe_irq_enable - Enable default interrupt generation settings |
1882 | * @adapter: board private structure | |
021230d4 | 1883 | **/ |
2c4af694 AD |
1884 | static inline void ixgbe_irq_enable(struct ixgbe_adapter *adapter, bool queues, |
1885 | bool flush) | |
9a799d71 | 1886 | { |
2c4af694 | 1887 | u32 mask = (IXGBE_EIMS_ENABLE_MASK & ~IXGBE_EIMS_RTX_QUEUE); |
9a799d71 | 1888 | |
2c4af694 AD |
1889 | /* don't reenable LSC while waiting for link */ |
1890 | if (adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE) | |
1891 | mask &= ~IXGBE_EIMS_LSC; | |
9a799d71 | 1892 | |
2c4af694 | 1893 | if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) |
4f51bf70 JK |
1894 | switch (adapter->hw.mac.type) { |
1895 | case ixgbe_mac_82599EB: | |
1896 | mask |= IXGBE_EIMS_GPI_SDP0; | |
1897 | break; | |
1898 | case ixgbe_mac_X540: | |
1899 | mask |= IXGBE_EIMS_TS; | |
1900 | break; | |
1901 | default: | |
1902 | break; | |
1903 | } | |
2c4af694 AD |
1904 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) |
1905 | mask |= IXGBE_EIMS_GPI_SDP1; | |
1906 | switch (adapter->hw.mac.type) { | |
1907 | case ixgbe_mac_82599EB: | |
2c4af694 AD |
1908 | mask |= IXGBE_EIMS_GPI_SDP1; |
1909 | mask |= IXGBE_EIMS_GPI_SDP2; | |
858bc081 DS |
1910 | case ixgbe_mac_X540: |
1911 | mask |= IXGBE_EIMS_ECC; | |
2c4af694 AD |
1912 | mask |= IXGBE_EIMS_MAILBOX; |
1913 | break; | |
1914 | default: | |
1915 | break; | |
9a799d71 | 1916 | } |
2c4af694 AD |
1917 | if ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) && |
1918 | !(adapter->flags2 & IXGBE_FLAG2_FDIR_REQUIRES_REINIT)) | |
1919 | mask |= IXGBE_EIMS_FLOW_DIR; | |
9a799d71 | 1920 | |
2c4af694 AD |
1921 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, mask); |
1922 | if (queues) | |
1923 | ixgbe_irq_enable_queues(adapter, ~0); | |
1924 | if (flush) | |
1925 | IXGBE_WRITE_FLUSH(&adapter->hw); | |
9a799d71 AK |
1926 | } |
1927 | ||
2c4af694 | 1928 | static irqreturn_t ixgbe_msix_other(int irq, void *data) |
f0848276 | 1929 | { |
a65151ba | 1930 | struct ixgbe_adapter *adapter = data; |
9a799d71 | 1931 | struct ixgbe_hw *hw = &adapter->hw; |
54037505 | 1932 | u32 eicr; |
91281fd3 | 1933 | |
54037505 DS |
1934 | /* |
1935 | * Workaround for Silicon errata. Use clear-by-write instead | |
1936 | * of clear-by-read. Reading with EICS will return the | |
1937 | * interrupt causes without clearing, which later be done | |
1938 | * with the write to EICR. | |
1939 | */ | |
1940 | eicr = IXGBE_READ_REG(hw, IXGBE_EICS); | |
1941 | IXGBE_WRITE_REG(hw, IXGBE_EICR, eicr); | |
33cf09c9 | 1942 | |
cf8280ee JB |
1943 | if (eicr & IXGBE_EICR_LSC) |
1944 | ixgbe_check_lsc(adapter); | |
f0848276 | 1945 | |
1cdd1ec8 GR |
1946 | if (eicr & IXGBE_EICR_MAILBOX) |
1947 | ixgbe_msg_task(adapter); | |
efe3d3c8 | 1948 | |
bd508178 AD |
1949 | switch (hw->mac.type) { |
1950 | case ixgbe_mac_82599EB: | |
b93a2226 | 1951 | case ixgbe_mac_X540: |
2c4af694 AD |
1952 | if (eicr & IXGBE_EICR_ECC) |
1953 | e_info(link, "Received unrecoverable ECC Err, please " | |
1954 | "reboot\n"); | |
c4cf55e5 PWJ |
1955 | /* Handle Flow Director Full threshold interrupt */ |
1956 | if (eicr & IXGBE_EICR_FLOW_DIR) { | |
d034acf1 | 1957 | int reinit_count = 0; |
c4cf55e5 | 1958 | int i; |
c4cf55e5 | 1959 | for (i = 0; i < adapter->num_tx_queues; i++) { |
d034acf1 | 1960 | struct ixgbe_ring *ring = adapter->tx_ring[i]; |
7d637bcc | 1961 | if (test_and_clear_bit(__IXGBE_TX_FDIR_INIT_DONE, |
d034acf1 AD |
1962 | &ring->state)) |
1963 | reinit_count++; | |
1964 | } | |
1965 | if (reinit_count) { | |
1966 | /* no more flow director interrupts until after init */ | |
1967 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_EIMC_FLOW_DIR); | |
d034acf1 AD |
1968 | adapter->flags2 |= IXGBE_FLAG2_FDIR_REQUIRES_REINIT; |
1969 | ixgbe_service_event_schedule(adapter); | |
c4cf55e5 PWJ |
1970 | } |
1971 | } | |
f0f9778d | 1972 | ixgbe_check_sfp_event(adapter, eicr); |
4f51bf70 | 1973 | ixgbe_check_overtemp_event(adapter, eicr); |
bd508178 AD |
1974 | break; |
1975 | default: | |
1976 | break; | |
c4cf55e5 | 1977 | } |
f0848276 | 1978 | |
bd508178 | 1979 | ixgbe_check_fan_failure(adapter, eicr); |
efe3d3c8 | 1980 | |
7086400d | 1981 | /* re-enable the original interrupt state, no lsc, no queues */ |
d4f80882 | 1982 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
2c4af694 | 1983 | ixgbe_irq_enable(adapter, false, false); |
f0848276 | 1984 | |
9a799d71 | 1985 | return IRQ_HANDLED; |
f0848276 | 1986 | } |
91281fd3 | 1987 | |
4ff7fb12 | 1988 | static irqreturn_t ixgbe_msix_clean_rings(int irq, void *data) |
91281fd3 | 1989 | { |
021230d4 | 1990 | struct ixgbe_q_vector *q_vector = data; |
91281fd3 | 1991 | |
9b471446 | 1992 | /* EIAM disabled interrupts (on this vector) for us */ |
91281fd3 | 1993 | |
4ff7fb12 AD |
1994 | if (q_vector->rx.ring || q_vector->tx.ring) |
1995 | napi_schedule(&q_vector->napi); | |
91281fd3 | 1996 | |
9a799d71 | 1997 | return IRQ_HANDLED; |
91281fd3 AD |
1998 | } |
1999 | ||
021230d4 | 2000 | static inline void map_vector_to_rxq(struct ixgbe_adapter *a, int v_idx, |
e8e9f696 | 2001 | int r_idx) |
021230d4 | 2002 | { |
7a921c93 | 2003 | struct ixgbe_q_vector *q_vector = a->q_vector[v_idx]; |
2274543f | 2004 | struct ixgbe_ring *rx_ring = a->rx_ring[r_idx]; |
7a921c93 | 2005 | |
2274543f | 2006 | rx_ring->q_vector = q_vector; |
efe3d3c8 AD |
2007 | rx_ring->next = q_vector->rx.ring; |
2008 | q_vector->rx.ring = rx_ring; | |
2009 | q_vector->rx.count++; | |
021230d4 AV |
2010 | } |
2011 | ||
2012 | static inline void map_vector_to_txq(struct ixgbe_adapter *a, int v_idx, | |
e8e9f696 | 2013 | int t_idx) |
021230d4 | 2014 | { |
7a921c93 | 2015 | struct ixgbe_q_vector *q_vector = a->q_vector[v_idx]; |
2274543f | 2016 | struct ixgbe_ring *tx_ring = a->tx_ring[t_idx]; |
7a921c93 | 2017 | |
2274543f | 2018 | tx_ring->q_vector = q_vector; |
efe3d3c8 AD |
2019 | tx_ring->next = q_vector->tx.ring; |
2020 | q_vector->tx.ring = tx_ring; | |
2021 | q_vector->tx.count++; | |
bd198058 | 2022 | q_vector->tx.work_limit = a->tx_work_limit; |
021230d4 AV |
2023 | } |
2024 | ||
9a799d71 | 2025 | /** |
021230d4 AV |
2026 | * ixgbe_map_rings_to_vectors - Maps descriptor rings to vectors |
2027 | * @adapter: board private structure to initialize | |
9a799d71 | 2028 | * |
021230d4 AV |
2029 | * This function maps descriptor rings to the queue-specific vectors |
2030 | * we were allotted through the MSI-X enabling code. Ideally, we'd have | |
2031 | * one vector per ring/queue, but on a constrained vector budget, we | |
2032 | * group the rings as "efficiently" as possible. You would add new | |
2033 | * mapping configurations in here. | |
9a799d71 | 2034 | **/ |
4cc6df29 | 2035 | static void ixgbe_map_rings_to_vectors(struct ixgbe_adapter *adapter) |
021230d4 | 2036 | { |
4cc6df29 AD |
2037 | int q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; |
2038 | int rxr_remaining = adapter->num_rx_queues, rxr_idx = 0; | |
2039 | int txr_remaining = adapter->num_tx_queues, txr_idx = 0; | |
021230d4 | 2040 | int v_start = 0; |
021230d4 | 2041 | |
4cc6df29 | 2042 | /* only one q_vector if MSI-X is disabled. */ |
021230d4 | 2043 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) |
4cc6df29 | 2044 | q_vectors = 1; |
d0759ebb | 2045 | |
021230d4 | 2046 | /* |
4cc6df29 AD |
2047 | * If we don't have enough vectors for a 1-to-1 mapping, we'll have to |
2048 | * group them so there are multiple queues per vector. | |
2049 | * | |
2050 | * Re-adjusting *qpv takes care of the remainder. | |
021230d4 | 2051 | */ |
4cc6df29 AD |
2052 | for (; v_start < q_vectors && rxr_remaining; v_start++) { |
2053 | int rqpv = DIV_ROUND_UP(rxr_remaining, q_vectors - v_start); | |
2054 | for (; rqpv; rqpv--, rxr_idx++, rxr_remaining--) | |
021230d4 | 2055 | map_vector_to_rxq(adapter, v_start, rxr_idx); |
021230d4 | 2056 | } |
9a799d71 | 2057 | |
021230d4 | 2058 | /* |
4cc6df29 AD |
2059 | * If there are not enough q_vectors for each ring to have it's own |
2060 | * vector then we must pair up Rx/Tx on a each vector | |
021230d4 | 2061 | */ |
4cc6df29 AD |
2062 | if ((v_start + txr_remaining) > q_vectors) |
2063 | v_start = 0; | |
2064 | ||
2065 | for (; v_start < q_vectors && txr_remaining; v_start++) { | |
2066 | int tqpv = DIV_ROUND_UP(txr_remaining, q_vectors - v_start); | |
2067 | for (; tqpv; tqpv--, txr_idx++, txr_remaining--) | |
2068 | map_vector_to_txq(adapter, v_start, txr_idx); | |
9a799d71 | 2069 | } |
021230d4 AV |
2070 | } |
2071 | ||
2072 | /** | |
2073 | * ixgbe_request_msix_irqs - Initialize MSI-X interrupts | |
2074 | * @adapter: board private structure | |
2075 | * | |
2076 | * ixgbe_request_msix_irqs allocates MSI-X vectors and requests | |
2077 | * interrupts from the kernel. | |
2078 | **/ | |
2079 | static int ixgbe_request_msix_irqs(struct ixgbe_adapter *adapter) | |
2080 | { | |
2081 | struct net_device *netdev = adapter->netdev; | |
207867f5 AD |
2082 | int q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; |
2083 | int vector, err; | |
e8e9f696 | 2084 | int ri = 0, ti = 0; |
021230d4 | 2085 | |
021230d4 | 2086 | for (vector = 0; vector < q_vectors; vector++) { |
d0759ebb | 2087 | struct ixgbe_q_vector *q_vector = adapter->q_vector[vector]; |
207867f5 | 2088 | struct msix_entry *entry = &adapter->msix_entries[vector]; |
cb13fc20 | 2089 | |
4ff7fb12 | 2090 | if (q_vector->tx.ring && q_vector->rx.ring) { |
9fe93afd | 2091 | snprintf(q_vector->name, sizeof(q_vector->name) - 1, |
4ff7fb12 AD |
2092 | "%s-%s-%d", netdev->name, "TxRx", ri++); |
2093 | ti++; | |
2094 | } else if (q_vector->rx.ring) { | |
9fe93afd | 2095 | snprintf(q_vector->name, sizeof(q_vector->name) - 1, |
4ff7fb12 AD |
2096 | "%s-%s-%d", netdev->name, "rx", ri++); |
2097 | } else if (q_vector->tx.ring) { | |
9fe93afd | 2098 | snprintf(q_vector->name, sizeof(q_vector->name) - 1, |
4ff7fb12 | 2099 | "%s-%s-%d", netdev->name, "tx", ti++); |
d0759ebb AD |
2100 | } else { |
2101 | /* skip this unused q_vector */ | |
2102 | continue; | |
32aa77a4 | 2103 | } |
207867f5 AD |
2104 | err = request_irq(entry->vector, &ixgbe_msix_clean_rings, 0, |
2105 | q_vector->name, q_vector); | |
9a799d71 | 2106 | if (err) { |
396e799c | 2107 | e_err(probe, "request_irq failed for MSIX interrupt " |
849c4542 | 2108 | "Error: %d\n", err); |
021230d4 | 2109 | goto free_queue_irqs; |
9a799d71 | 2110 | } |
207867f5 AD |
2111 | /* If Flow Director is enabled, set interrupt affinity */ |
2112 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { | |
2113 | /* assign the mask for this irq */ | |
2114 | irq_set_affinity_hint(entry->vector, | |
2115 | q_vector->affinity_mask); | |
2116 | } | |
9a799d71 AK |
2117 | } |
2118 | ||
021230d4 | 2119 | err = request_irq(adapter->msix_entries[vector].vector, |
2c4af694 | 2120 | ixgbe_msix_other, 0, netdev->name, adapter); |
9a799d71 | 2121 | if (err) { |
396e799c | 2122 | e_err(probe, "request_irq for msix_lsc failed: %d\n", err); |
021230d4 | 2123 | goto free_queue_irqs; |
9a799d71 AK |
2124 | } |
2125 | ||
9a799d71 AK |
2126 | return 0; |
2127 | ||
021230d4 | 2128 | free_queue_irqs: |
207867f5 AD |
2129 | while (vector) { |
2130 | vector--; | |
2131 | irq_set_affinity_hint(adapter->msix_entries[vector].vector, | |
2132 | NULL); | |
2133 | free_irq(adapter->msix_entries[vector].vector, | |
2134 | adapter->q_vector[vector]); | |
2135 | } | |
021230d4 AV |
2136 | adapter->flags &= ~IXGBE_FLAG_MSIX_ENABLED; |
2137 | pci_disable_msix(adapter->pdev); | |
9a799d71 AK |
2138 | kfree(adapter->msix_entries); |
2139 | adapter->msix_entries = NULL; | |
9a799d71 AK |
2140 | return err; |
2141 | } | |
2142 | ||
2143 | /** | |
021230d4 | 2144 | * ixgbe_intr - legacy mode Interrupt Handler |
9a799d71 AK |
2145 | * @irq: interrupt number |
2146 | * @data: pointer to a network interface device structure | |
9a799d71 AK |
2147 | **/ |
2148 | static irqreturn_t ixgbe_intr(int irq, void *data) | |
2149 | { | |
a65151ba | 2150 | struct ixgbe_adapter *adapter = data; |
9a799d71 | 2151 | struct ixgbe_hw *hw = &adapter->hw; |
7a921c93 | 2152 | struct ixgbe_q_vector *q_vector = adapter->q_vector[0]; |
9a799d71 AK |
2153 | u32 eicr; |
2154 | ||
54037505 | 2155 | /* |
6af3b9eb | 2156 | * Workaround for silicon errata on 82598. Mask the interrupts |
54037505 DS |
2157 | * before the read of EICR. |
2158 | */ | |
2159 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_IRQ_CLEAR_MASK); | |
2160 | ||
021230d4 | 2161 | /* for NAPI, using EIAM to auto-mask tx/rx interrupt bits on read |
52f33af8 | 2162 | * therefore no explicit interrupt disable is necessary */ |
021230d4 | 2163 | eicr = IXGBE_READ_REG(hw, IXGBE_EICR); |
f47cf66e | 2164 | if (!eicr) { |
6af3b9eb ET |
2165 | /* |
2166 | * shared interrupt alert! | |
f47cf66e | 2167 | * make sure interrupts are enabled because the read will |
6af3b9eb ET |
2168 | * have disabled interrupts due to EIAM |
2169 | * finish the workaround of silicon errata on 82598. Unmask | |
2170 | * the interrupt that we masked before the EICR read. | |
2171 | */ | |
2172 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) | |
2173 | ixgbe_irq_enable(adapter, true, true); | |
9a799d71 | 2174 | return IRQ_NONE; /* Not our interrupt */ |
f47cf66e | 2175 | } |
9a799d71 | 2176 | |
cf8280ee JB |
2177 | if (eicr & IXGBE_EICR_LSC) |
2178 | ixgbe_check_lsc(adapter); | |
021230d4 | 2179 | |
bd508178 AD |
2180 | switch (hw->mac.type) { |
2181 | case ixgbe_mac_82599EB: | |
e8e26350 | 2182 | ixgbe_check_sfp_event(adapter, eicr); |
0ccb974d DS |
2183 | /* Fall through */ |
2184 | case ixgbe_mac_X540: | |
2185 | if (eicr & IXGBE_EICR_ECC) | |
2186 | e_info(link, "Received unrecoverable ECC err, please " | |
2187 | "reboot\n"); | |
4f51bf70 | 2188 | ixgbe_check_overtemp_event(adapter, eicr); |
bd508178 AD |
2189 | break; |
2190 | default: | |
2191 | break; | |
2192 | } | |
e8e26350 | 2193 | |
0befdb3e JB |
2194 | ixgbe_check_fan_failure(adapter, eicr); |
2195 | ||
7a921c93 | 2196 | if (napi_schedule_prep(&(q_vector->napi))) { |
021230d4 | 2197 | /* would disable interrupts here but EIAM disabled it */ |
7a921c93 | 2198 | __napi_schedule(&(q_vector->napi)); |
9a799d71 AK |
2199 | } |
2200 | ||
6af3b9eb ET |
2201 | /* |
2202 | * re-enable link(maybe) and non-queue interrupts, no flush. | |
2203 | * ixgbe_poll will re-enable the queue interrupts | |
2204 | */ | |
2205 | ||
2206 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) | |
2207 | ixgbe_irq_enable(adapter, false, false); | |
2208 | ||
9a799d71 AK |
2209 | return IRQ_HANDLED; |
2210 | } | |
2211 | ||
021230d4 AV |
2212 | static inline void ixgbe_reset_q_vectors(struct ixgbe_adapter *adapter) |
2213 | { | |
efe3d3c8 AD |
2214 | int q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; |
2215 | int i; | |
2216 | ||
2217 | /* legacy and MSI only use one vector */ | |
2218 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) | |
2219 | q_vectors = 1; | |
2220 | ||
2221 | for (i = 0; i < adapter->num_rx_queues; i++) { | |
2222 | adapter->rx_ring[i]->q_vector = NULL; | |
2223 | adapter->rx_ring[i]->next = NULL; | |
2224 | } | |
2225 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
2226 | adapter->tx_ring[i]->q_vector = NULL; | |
2227 | adapter->tx_ring[i]->next = NULL; | |
2228 | } | |
021230d4 AV |
2229 | |
2230 | for (i = 0; i < q_vectors; i++) { | |
7a921c93 | 2231 | struct ixgbe_q_vector *q_vector = adapter->q_vector[i]; |
efe3d3c8 AD |
2232 | memset(&q_vector->rx, 0, sizeof(struct ixgbe_ring_container)); |
2233 | memset(&q_vector->tx, 0, sizeof(struct ixgbe_ring_container)); | |
021230d4 AV |
2234 | } |
2235 | } | |
2236 | ||
9a799d71 AK |
2237 | /** |
2238 | * ixgbe_request_irq - initialize interrupts | |
2239 | * @adapter: board private structure | |
2240 | * | |
2241 | * Attempts to configure interrupts using the best available | |
2242 | * capabilities of the hardware and kernel. | |
2243 | **/ | |
021230d4 | 2244 | static int ixgbe_request_irq(struct ixgbe_adapter *adapter) |
9a799d71 AK |
2245 | { |
2246 | struct net_device *netdev = adapter->netdev; | |
021230d4 | 2247 | int err; |
9a799d71 | 2248 | |
4cc6df29 AD |
2249 | /* map all of the rings to the q_vectors */ |
2250 | ixgbe_map_rings_to_vectors(adapter); | |
2251 | ||
2252 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) | |
021230d4 | 2253 | err = ixgbe_request_msix_irqs(adapter); |
4cc6df29 | 2254 | else if (adapter->flags & IXGBE_FLAG_MSI_ENABLED) |
a0607fd3 | 2255 | err = request_irq(adapter->pdev->irq, ixgbe_intr, 0, |
a65151ba | 2256 | netdev->name, adapter); |
4cc6df29 | 2257 | else |
a0607fd3 | 2258 | err = request_irq(adapter->pdev->irq, ixgbe_intr, IRQF_SHARED, |
a65151ba | 2259 | netdev->name, adapter); |
9a799d71 | 2260 | |
4cc6df29 | 2261 | if (err) { |
396e799c | 2262 | e_err(probe, "request_irq failed, Error %d\n", err); |
9a799d71 | 2263 | |
4cc6df29 AD |
2264 | /* place q_vectors and rings back into a known good state */ |
2265 | ixgbe_reset_q_vectors(adapter); | |
2266 | } | |
2267 | ||
9a799d71 AK |
2268 | return err; |
2269 | } | |
2270 | ||
2271 | static void ixgbe_free_irq(struct ixgbe_adapter *adapter) | |
2272 | { | |
9a799d71 | 2273 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
021230d4 | 2274 | int i, q_vectors; |
9a799d71 | 2275 | |
021230d4 | 2276 | q_vectors = adapter->num_msix_vectors; |
021230d4 | 2277 | i = q_vectors - 1; |
a65151ba | 2278 | free_irq(adapter->msix_entries[i].vector, adapter); |
021230d4 | 2279 | i--; |
4cc6df29 | 2280 | |
021230d4 | 2281 | for (; i >= 0; i--) { |
894ff7cf | 2282 | /* free only the irqs that were actually requested */ |
4ff7fb12 AD |
2283 | if (!adapter->q_vector[i]->rx.ring && |
2284 | !adapter->q_vector[i]->tx.ring) | |
894ff7cf AD |
2285 | continue; |
2286 | ||
207867f5 AD |
2287 | /* clear the affinity_mask in the IRQ descriptor */ |
2288 | irq_set_affinity_hint(adapter->msix_entries[i].vector, | |
2289 | NULL); | |
2290 | ||
021230d4 | 2291 | free_irq(adapter->msix_entries[i].vector, |
e8e9f696 | 2292 | adapter->q_vector[i]); |
021230d4 | 2293 | } |
021230d4 | 2294 | } else { |
a65151ba | 2295 | free_irq(adapter->pdev->irq, adapter); |
9a799d71 | 2296 | } |
207867f5 AD |
2297 | |
2298 | /* clear q_vector state information */ | |
2299 | ixgbe_reset_q_vectors(adapter); | |
9a799d71 AK |
2300 | } |
2301 | ||
22d5a71b JB |
2302 | /** |
2303 | * ixgbe_irq_disable - Mask off interrupt generation on the NIC | |
2304 | * @adapter: board private structure | |
2305 | **/ | |
2306 | static inline void ixgbe_irq_disable(struct ixgbe_adapter *adapter) | |
2307 | { | |
bd508178 AD |
2308 | switch (adapter->hw.mac.type) { |
2309 | case ixgbe_mac_82598EB: | |
835462fc | 2310 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, ~0); |
bd508178 AD |
2311 | break; |
2312 | case ixgbe_mac_82599EB: | |
b93a2226 | 2313 | case ixgbe_mac_X540: |
835462fc NS |
2314 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, 0xFFFF0000); |
2315 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(0), ~0); | |
22d5a71b | 2316 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(1), ~0); |
bd508178 AD |
2317 | break; |
2318 | default: | |
2319 | break; | |
22d5a71b JB |
2320 | } |
2321 | IXGBE_WRITE_FLUSH(&adapter->hw); | |
2322 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { | |
2323 | int i; | |
2324 | for (i = 0; i < adapter->num_msix_vectors; i++) | |
2325 | synchronize_irq(adapter->msix_entries[i].vector); | |
2326 | } else { | |
2327 | synchronize_irq(adapter->pdev->irq); | |
2328 | } | |
2329 | } | |
2330 | ||
9a799d71 AK |
2331 | /** |
2332 | * ixgbe_configure_msi_and_legacy - Initialize PIN (INTA...) and MSI interrupts | |
2333 | * | |
2334 | **/ | |
2335 | static void ixgbe_configure_msi_and_legacy(struct ixgbe_adapter *adapter) | |
2336 | { | |
d5bf4f67 | 2337 | struct ixgbe_q_vector *q_vector = adapter->q_vector[0]; |
9a799d71 | 2338 | |
d5bf4f67 ET |
2339 | /* rx/tx vector */ |
2340 | if (adapter->rx_itr_setting == 1) | |
2341 | q_vector->itr = IXGBE_20K_ITR; | |
2342 | else | |
2343 | q_vector->itr = adapter->rx_itr_setting; | |
2344 | ||
2345 | ixgbe_write_eitr(q_vector); | |
9a799d71 | 2346 | |
e8e26350 PW |
2347 | ixgbe_set_ivar(adapter, 0, 0, 0); |
2348 | ixgbe_set_ivar(adapter, 1, 0, 0); | |
021230d4 | 2349 | |
396e799c | 2350 | e_info(hw, "Legacy interrupt IVAR setup done\n"); |
9a799d71 AK |
2351 | } |
2352 | ||
43e69bf0 AD |
2353 | /** |
2354 | * ixgbe_configure_tx_ring - Configure 8259x Tx ring after Reset | |
2355 | * @adapter: board private structure | |
2356 | * @ring: structure containing ring specific data | |
2357 | * | |
2358 | * Configure the Tx descriptor ring after a reset. | |
2359 | **/ | |
84418e3b AD |
2360 | void ixgbe_configure_tx_ring(struct ixgbe_adapter *adapter, |
2361 | struct ixgbe_ring *ring) | |
43e69bf0 AD |
2362 | { |
2363 | struct ixgbe_hw *hw = &adapter->hw; | |
2364 | u64 tdba = ring->dma; | |
2f1860b8 | 2365 | int wait_loop = 10; |
b88c6de2 | 2366 | u32 txdctl = IXGBE_TXDCTL_ENABLE; |
bf29ee6c | 2367 | u8 reg_idx = ring->reg_idx; |
43e69bf0 | 2368 | |
2f1860b8 | 2369 | /* disable queue to avoid issues while updating state */ |
b88c6de2 | 2370 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), 0); |
2f1860b8 AD |
2371 | IXGBE_WRITE_FLUSH(hw); |
2372 | ||
43e69bf0 | 2373 | IXGBE_WRITE_REG(hw, IXGBE_TDBAL(reg_idx), |
e8e9f696 | 2374 | (tdba & DMA_BIT_MASK(32))); |
43e69bf0 AD |
2375 | IXGBE_WRITE_REG(hw, IXGBE_TDBAH(reg_idx), (tdba >> 32)); |
2376 | IXGBE_WRITE_REG(hw, IXGBE_TDLEN(reg_idx), | |
2377 | ring->count * sizeof(union ixgbe_adv_tx_desc)); | |
2378 | IXGBE_WRITE_REG(hw, IXGBE_TDH(reg_idx), 0); | |
2379 | IXGBE_WRITE_REG(hw, IXGBE_TDT(reg_idx), 0); | |
84ea2591 | 2380 | ring->tail = hw->hw_addr + IXGBE_TDT(reg_idx); |
43e69bf0 | 2381 | |
b88c6de2 AD |
2382 | /* |
2383 | * set WTHRESH to encourage burst writeback, it should not be set | |
2384 | * higher than 1 when ITR is 0 as it could cause false TX hangs | |
2385 | * | |
2386 | * In order to avoid issues WTHRESH + PTHRESH should always be equal | |
2387 | * to or less than the number of on chip descriptors, which is | |
2388 | * currently 40. | |
2389 | */ | |
2390 | if (!adapter->tx_itr_setting || !adapter->rx_itr_setting) | |
2391 | txdctl |= (1 << 16); /* WTHRESH = 1 */ | |
2392 | else | |
2393 | txdctl |= (8 << 16); /* WTHRESH = 8 */ | |
2394 | ||
2395 | /* PTHRESH=32 is needed to avoid a Tx hang with DFP enabled. */ | |
2396 | txdctl |= (1 << 8) | /* HTHRESH = 1 */ | |
2397 | 32; /* PTHRESH = 32 */ | |
2f1860b8 AD |
2398 | |
2399 | /* reinitialize flowdirector state */ | |
ee9e0f0b AD |
2400 | if ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) && |
2401 | adapter->atr_sample_rate) { | |
2402 | ring->atr_sample_rate = adapter->atr_sample_rate; | |
2403 | ring->atr_count = 0; | |
2404 | set_bit(__IXGBE_TX_FDIR_INIT_DONE, &ring->state); | |
2405 | } else { | |
2406 | ring->atr_sample_rate = 0; | |
2407 | } | |
2f1860b8 | 2408 | |
c84d324c JF |
2409 | clear_bit(__IXGBE_HANG_CHECK_ARMED, &ring->state); |
2410 | ||
2f1860b8 | 2411 | /* enable queue */ |
2f1860b8 AD |
2412 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), txdctl); |
2413 | ||
2414 | /* TXDCTL.EN will return 0 on 82598 if link is down, so skip it */ | |
2415 | if (hw->mac.type == ixgbe_mac_82598EB && | |
2416 | !(IXGBE_READ_REG(hw, IXGBE_LINKS) & IXGBE_LINKS_UP)) | |
2417 | return; | |
2418 | ||
2419 | /* poll to verify queue is enabled */ | |
2420 | do { | |
032b4325 | 2421 | usleep_range(1000, 2000); |
2f1860b8 AD |
2422 | txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(reg_idx)); |
2423 | } while (--wait_loop && !(txdctl & IXGBE_TXDCTL_ENABLE)); | |
2424 | if (!wait_loop) | |
2425 | e_err(drv, "Could not enable Tx Queue %d\n", reg_idx); | |
43e69bf0 AD |
2426 | } |
2427 | ||
120ff942 AD |
2428 | static void ixgbe_setup_mtqc(struct ixgbe_adapter *adapter) |
2429 | { | |
2430 | struct ixgbe_hw *hw = &adapter->hw; | |
2431 | u32 rttdcs; | |
72a32f1f | 2432 | u32 reg; |
8b1c0b24 | 2433 | u8 tcs = netdev_get_num_tc(adapter->netdev); |
120ff942 AD |
2434 | |
2435 | if (hw->mac.type == ixgbe_mac_82598EB) | |
2436 | return; | |
2437 | ||
2438 | /* disable the arbiter while setting MTQC */ | |
2439 | rttdcs = IXGBE_READ_REG(hw, IXGBE_RTTDCS); | |
2440 | rttdcs |= IXGBE_RTTDCS_ARBDIS; | |
2441 | IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, rttdcs); | |
2442 | ||
2443 | /* set transmit pool layout */ | |
8b1c0b24 | 2444 | switch (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { |
120ff942 AD |
2445 | case (IXGBE_FLAG_SRIOV_ENABLED): |
2446 | IXGBE_WRITE_REG(hw, IXGBE_MTQC, | |
2447 | (IXGBE_MTQC_VT_ENA | IXGBE_MTQC_64VF)); | |
2448 | break; | |
8b1c0b24 JF |
2449 | default: |
2450 | if (!tcs) | |
2451 | reg = IXGBE_MTQC_64Q_1PB; | |
2452 | else if (tcs <= 4) | |
2453 | reg = IXGBE_MTQC_RT_ENA | IXGBE_MTQC_4TC_4TQ; | |
2454 | else | |
2455 | reg = IXGBE_MTQC_RT_ENA | IXGBE_MTQC_8TC_8TQ; | |
120ff942 | 2456 | |
8b1c0b24 | 2457 | IXGBE_WRITE_REG(hw, IXGBE_MTQC, reg); |
120ff942 | 2458 | |
8b1c0b24 JF |
2459 | /* Enable Security TX Buffer IFG for multiple pb */ |
2460 | if (tcs) { | |
2461 | reg = IXGBE_READ_REG(hw, IXGBE_SECTXMINIFG); | |
2462 | reg |= IXGBE_SECTX_DCB; | |
2463 | IXGBE_WRITE_REG(hw, IXGBE_SECTXMINIFG, reg); | |
2464 | } | |
120ff942 AD |
2465 | break; |
2466 | } | |
2467 | ||
2468 | /* re-enable the arbiter */ | |
2469 | rttdcs &= ~IXGBE_RTTDCS_ARBDIS; | |
2470 | IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, rttdcs); | |
2471 | } | |
2472 | ||
9a799d71 | 2473 | /** |
3a581073 | 2474 | * ixgbe_configure_tx - Configure 8259x Transmit Unit after Reset |
9a799d71 AK |
2475 | * @adapter: board private structure |
2476 | * | |
2477 | * Configure the Tx unit of the MAC after a reset. | |
2478 | **/ | |
2479 | static void ixgbe_configure_tx(struct ixgbe_adapter *adapter) | |
2480 | { | |
2f1860b8 AD |
2481 | struct ixgbe_hw *hw = &adapter->hw; |
2482 | u32 dmatxctl; | |
43e69bf0 | 2483 | u32 i; |
9a799d71 | 2484 | |
2f1860b8 AD |
2485 | ixgbe_setup_mtqc(adapter); |
2486 | ||
2487 | if (hw->mac.type != ixgbe_mac_82598EB) { | |
2488 | /* DMATXCTL.EN must be before Tx queues are enabled */ | |
2489 | dmatxctl = IXGBE_READ_REG(hw, IXGBE_DMATXCTL); | |
2490 | dmatxctl |= IXGBE_DMATXCTL_TE; | |
2491 | IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL, dmatxctl); | |
2492 | } | |
2493 | ||
9a799d71 | 2494 | /* Setup the HW Tx Head and Tail descriptor pointers */ |
43e69bf0 AD |
2495 | for (i = 0; i < adapter->num_tx_queues; i++) |
2496 | ixgbe_configure_tx_ring(adapter, adapter->tx_ring[i]); | |
9a799d71 AK |
2497 | } |
2498 | ||
e8e26350 | 2499 | #define IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT 2 |
cc41ac7c | 2500 | |
a6616b42 | 2501 | static void ixgbe_configure_srrctl(struct ixgbe_adapter *adapter, |
e8e9f696 | 2502 | struct ixgbe_ring *rx_ring) |
cc41ac7c | 2503 | { |
cc41ac7c | 2504 | u32 srrctl; |
bf29ee6c | 2505 | u8 reg_idx = rx_ring->reg_idx; |
3be1adfb | 2506 | |
bd508178 AD |
2507 | switch (adapter->hw.mac.type) { |
2508 | case ixgbe_mac_82598EB: { | |
2509 | struct ixgbe_ring_feature *feature = adapter->ring_feature; | |
2510 | const int mask = feature[RING_F_RSS].mask; | |
bf29ee6c | 2511 | reg_idx = reg_idx & mask; |
cc41ac7c | 2512 | } |
bd508178 AD |
2513 | break; |
2514 | case ixgbe_mac_82599EB: | |
b93a2226 | 2515 | case ixgbe_mac_X540: |
bd508178 AD |
2516 | default: |
2517 | break; | |
2518 | } | |
2519 | ||
bf29ee6c | 2520 | srrctl = IXGBE_READ_REG(&adapter->hw, IXGBE_SRRCTL(reg_idx)); |
cc41ac7c JB |
2521 | |
2522 | srrctl &= ~IXGBE_SRRCTL_BSIZEHDR_MASK; | |
2523 | srrctl &= ~IXGBE_SRRCTL_BSIZEPKT_MASK; | |
9e10e045 AD |
2524 | if (adapter->num_vfs) |
2525 | srrctl |= IXGBE_SRRCTL_DROP_EN; | |
cc41ac7c | 2526 | |
afafd5b0 AD |
2527 | srrctl |= (IXGBE_RX_HDR_SIZE << IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT) & |
2528 | IXGBE_SRRCTL_BSIZEHDR_MASK; | |
2529 | ||
7d637bcc | 2530 | if (ring_is_ps_enabled(rx_ring)) { |
afafd5b0 AD |
2531 | #if (PAGE_SIZE / 2) > IXGBE_MAX_RXBUFFER |
2532 | srrctl |= IXGBE_MAX_RXBUFFER >> IXGBE_SRRCTL_BSIZEPKT_SHIFT; | |
2533 | #else | |
2534 | srrctl |= (PAGE_SIZE / 2) >> IXGBE_SRRCTL_BSIZEPKT_SHIFT; | |
2535 | #endif | |
cc41ac7c | 2536 | srrctl |= IXGBE_SRRCTL_DESCTYPE_HDR_SPLIT_ALWAYS; |
cc41ac7c | 2537 | } else { |
afafd5b0 AD |
2538 | srrctl |= ALIGN(rx_ring->rx_buf_len, 1024) >> |
2539 | IXGBE_SRRCTL_BSIZEPKT_SHIFT; | |
cc41ac7c | 2540 | srrctl |= IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF; |
cc41ac7c | 2541 | } |
e8e26350 | 2542 | |
bf29ee6c | 2543 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_SRRCTL(reg_idx), srrctl); |
cc41ac7c | 2544 | } |
9a799d71 | 2545 | |
05abb126 | 2546 | static void ixgbe_setup_mrqc(struct ixgbe_adapter *adapter) |
0cefafad | 2547 | { |
05abb126 AD |
2548 | struct ixgbe_hw *hw = &adapter->hw; |
2549 | static const u32 seed[10] = { 0xE291D73D, 0x1805EC6C, 0x2A94B30D, | |
e8e9f696 JP |
2550 | 0xA54F2BEC, 0xEA49AF7C, 0xE214AD3D, 0xB855AABE, |
2551 | 0x6A3E67EA, 0x14364D17, 0x3BED200D}; | |
05abb126 AD |
2552 | u32 mrqc = 0, reta = 0; |
2553 | u32 rxcsum; | |
2554 | int i, j; | |
8b1c0b24 | 2555 | u8 tcs = netdev_get_num_tc(adapter->netdev); |
86b4db3b JF |
2556 | int maxq = adapter->ring_feature[RING_F_RSS].indices; |
2557 | ||
2558 | if (tcs) | |
2559 | maxq = min(maxq, adapter->num_tx_queues / tcs); | |
0cefafad | 2560 | |
05abb126 AD |
2561 | /* Fill out hash function seeds */ |
2562 | for (i = 0; i < 10; i++) | |
2563 | IXGBE_WRITE_REG(hw, IXGBE_RSSRK(i), seed[i]); | |
2564 | ||
2565 | /* Fill out redirection table */ | |
2566 | for (i = 0, j = 0; i < 128; i++, j++) { | |
86b4db3b | 2567 | if (j == maxq) |
05abb126 AD |
2568 | j = 0; |
2569 | /* reta = 4-byte sliding window of | |
2570 | * 0x00..(indices-1)(indices-1)00..etc. */ | |
2571 | reta = (reta << 8) | (j * 0x11); | |
2572 | if ((i & 3) == 3) | |
2573 | IXGBE_WRITE_REG(hw, IXGBE_RETA(i >> 2), reta); | |
2574 | } | |
0cefafad | 2575 | |
05abb126 AD |
2576 | /* Disable indicating checksum in descriptor, enables RSS hash */ |
2577 | rxcsum = IXGBE_READ_REG(hw, IXGBE_RXCSUM); | |
2578 | rxcsum |= IXGBE_RXCSUM_PCSD; | |
2579 | IXGBE_WRITE_REG(hw, IXGBE_RXCSUM, rxcsum); | |
2580 | ||
8b1c0b24 JF |
2581 | if (adapter->hw.mac.type == ixgbe_mac_82598EB && |
2582 | (adapter->flags & IXGBE_FLAG_RSS_ENABLED)) { | |
0cefafad | 2583 | mrqc = IXGBE_MRQC_RSSEN; |
8b1c0b24 JF |
2584 | } else { |
2585 | int mask = adapter->flags & (IXGBE_FLAG_RSS_ENABLED | |
2586 | | IXGBE_FLAG_SRIOV_ENABLED); | |
2587 | ||
2588 | switch (mask) { | |
2589 | case (IXGBE_FLAG_RSS_ENABLED): | |
2590 | if (!tcs) | |
2591 | mrqc = IXGBE_MRQC_RSSEN; | |
2592 | else if (tcs <= 4) | |
2593 | mrqc = IXGBE_MRQC_RTRSS4TCEN; | |
2594 | else | |
2595 | mrqc = IXGBE_MRQC_RTRSS8TCEN; | |
2596 | break; | |
2597 | case (IXGBE_FLAG_SRIOV_ENABLED): | |
2598 | mrqc = IXGBE_MRQC_VMDQEN; | |
2599 | break; | |
2600 | default: | |
2601 | break; | |
2602 | } | |
0cefafad JB |
2603 | } |
2604 | ||
05abb126 AD |
2605 | /* Perform hash on these packet types */ |
2606 | mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4 | |
2607 | | IXGBE_MRQC_RSS_FIELD_IPV4_TCP | |
2608 | | IXGBE_MRQC_RSS_FIELD_IPV6 | |
2609 | | IXGBE_MRQC_RSS_FIELD_IPV6_TCP; | |
2610 | ||
2611 | IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc); | |
0cefafad JB |
2612 | } |
2613 | ||
bb5a9ad2 NS |
2614 | /** |
2615 | * ixgbe_configure_rscctl - enable RSC for the indicated ring | |
2616 | * @adapter: address of board private structure | |
2617 | * @index: index of ring to set | |
bb5a9ad2 | 2618 | **/ |
082757af | 2619 | static void ixgbe_configure_rscctl(struct ixgbe_adapter *adapter, |
7367096a | 2620 | struct ixgbe_ring *ring) |
bb5a9ad2 | 2621 | { |
bb5a9ad2 | 2622 | struct ixgbe_hw *hw = &adapter->hw; |
bb5a9ad2 | 2623 | u32 rscctrl; |
edd2ea55 | 2624 | int rx_buf_len; |
bf29ee6c | 2625 | u8 reg_idx = ring->reg_idx; |
7367096a | 2626 | |
7d637bcc | 2627 | if (!ring_is_rsc_enabled(ring)) |
7367096a | 2628 | return; |
bb5a9ad2 | 2629 | |
7367096a AD |
2630 | rx_buf_len = ring->rx_buf_len; |
2631 | rscctrl = IXGBE_READ_REG(hw, IXGBE_RSCCTL(reg_idx)); | |
bb5a9ad2 NS |
2632 | rscctrl |= IXGBE_RSCCTL_RSCEN; |
2633 | /* | |
2634 | * we must limit the number of descriptors so that the | |
2635 | * total size of max desc * buf_len is not greater | |
642c680e | 2636 | * than 65536 |
bb5a9ad2 | 2637 | */ |
7d637bcc | 2638 | if (ring_is_ps_enabled(ring)) { |
642c680e | 2639 | #if (PAGE_SIZE < 8192) |
bb5a9ad2 | 2640 | rscctrl |= IXGBE_RSCCTL_MAXDESC_16; |
642c680e | 2641 | #elif (PAGE_SIZE < 16384) |
bb5a9ad2 | 2642 | rscctrl |= IXGBE_RSCCTL_MAXDESC_8; |
642c680e | 2643 | #elif (PAGE_SIZE < 32768) |
bb5a9ad2 NS |
2644 | rscctrl |= IXGBE_RSCCTL_MAXDESC_4; |
2645 | #else | |
2646 | rscctrl |= IXGBE_RSCCTL_MAXDESC_1; | |
2647 | #endif | |
2648 | } else { | |
642c680e | 2649 | if (rx_buf_len <= IXGBE_RXBUFFER_4K) |
bb5a9ad2 | 2650 | rscctrl |= IXGBE_RSCCTL_MAXDESC_16; |
642c680e | 2651 | else if (rx_buf_len <= IXGBE_RXBUFFER_8K) |
bb5a9ad2 NS |
2652 | rscctrl |= IXGBE_RSCCTL_MAXDESC_8; |
2653 | else | |
2654 | rscctrl |= IXGBE_RSCCTL_MAXDESC_4; | |
2655 | } | |
7367096a | 2656 | IXGBE_WRITE_REG(hw, IXGBE_RSCCTL(reg_idx), rscctrl); |
bb5a9ad2 NS |
2657 | } |
2658 | ||
9e10e045 AD |
2659 | /** |
2660 | * ixgbe_set_uta - Set unicast filter table address | |
2661 | * @adapter: board private structure | |
2662 | * | |
2663 | * The unicast table address is a register array of 32-bit registers. | |
2664 | * The table is meant to be used in a way similar to how the MTA is used | |
2665 | * however due to certain limitations in the hardware it is necessary to | |
2666 | * set all the hash bits to 1 and use the VMOLR ROPE bit as a promiscuous | |
2667 | * enable bit to allow vlan tag stripping when promiscuous mode is enabled | |
2668 | **/ | |
2669 | static void ixgbe_set_uta(struct ixgbe_adapter *adapter) | |
2670 | { | |
2671 | struct ixgbe_hw *hw = &adapter->hw; | |
2672 | int i; | |
2673 | ||
2674 | /* The UTA table only exists on 82599 hardware and newer */ | |
2675 | if (hw->mac.type < ixgbe_mac_82599EB) | |
2676 | return; | |
2677 | ||
2678 | /* we only need to do this if VMDq is enabled */ | |
2679 | if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) | |
2680 | return; | |
2681 | ||
2682 | for (i = 0; i < 128; i++) | |
2683 | IXGBE_WRITE_REG(hw, IXGBE_UTA(i), ~0); | |
2684 | } | |
2685 | ||
2686 | #define IXGBE_MAX_RX_DESC_POLL 10 | |
2687 | static void ixgbe_rx_desc_queue_enable(struct ixgbe_adapter *adapter, | |
2688 | struct ixgbe_ring *ring) | |
2689 | { | |
2690 | struct ixgbe_hw *hw = &adapter->hw; | |
9e10e045 AD |
2691 | int wait_loop = IXGBE_MAX_RX_DESC_POLL; |
2692 | u32 rxdctl; | |
bf29ee6c | 2693 | u8 reg_idx = ring->reg_idx; |
9e10e045 AD |
2694 | |
2695 | /* RXDCTL.EN will return 0 on 82598 if link is down, so skip it */ | |
2696 | if (hw->mac.type == ixgbe_mac_82598EB && | |
2697 | !(IXGBE_READ_REG(hw, IXGBE_LINKS) & IXGBE_LINKS_UP)) | |
2698 | return; | |
2699 | ||
2700 | do { | |
032b4325 | 2701 | usleep_range(1000, 2000); |
9e10e045 AD |
2702 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); |
2703 | } while (--wait_loop && !(rxdctl & IXGBE_RXDCTL_ENABLE)); | |
2704 | ||
2705 | if (!wait_loop) { | |
2706 | e_err(drv, "RXDCTL.ENABLE on Rx queue %d not set within " | |
2707 | "the polling period\n", reg_idx); | |
2708 | } | |
2709 | } | |
2710 | ||
2d39d576 YZ |
2711 | void ixgbe_disable_rx_queue(struct ixgbe_adapter *adapter, |
2712 | struct ixgbe_ring *ring) | |
2713 | { | |
2714 | struct ixgbe_hw *hw = &adapter->hw; | |
2715 | int wait_loop = IXGBE_MAX_RX_DESC_POLL; | |
2716 | u32 rxdctl; | |
2717 | u8 reg_idx = ring->reg_idx; | |
2718 | ||
2719 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); | |
2720 | rxdctl &= ~IXGBE_RXDCTL_ENABLE; | |
2721 | ||
2722 | /* write value back with RXDCTL.ENABLE bit cleared */ | |
2723 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(reg_idx), rxdctl); | |
2724 | ||
2725 | if (hw->mac.type == ixgbe_mac_82598EB && | |
2726 | !(IXGBE_READ_REG(hw, IXGBE_LINKS) & IXGBE_LINKS_UP)) | |
2727 | return; | |
2728 | ||
2729 | /* the hardware may take up to 100us to really disable the rx queue */ | |
2730 | do { | |
2731 | udelay(10); | |
2732 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); | |
2733 | } while (--wait_loop && (rxdctl & IXGBE_RXDCTL_ENABLE)); | |
2734 | ||
2735 | if (!wait_loop) { | |
2736 | e_err(drv, "RXDCTL.ENABLE on Rx queue %d not cleared within " | |
2737 | "the polling period\n", reg_idx); | |
2738 | } | |
2739 | } | |
2740 | ||
84418e3b AD |
2741 | void ixgbe_configure_rx_ring(struct ixgbe_adapter *adapter, |
2742 | struct ixgbe_ring *ring) | |
acd37177 AD |
2743 | { |
2744 | struct ixgbe_hw *hw = &adapter->hw; | |
2745 | u64 rdba = ring->dma; | |
9e10e045 | 2746 | u32 rxdctl; |
bf29ee6c | 2747 | u8 reg_idx = ring->reg_idx; |
acd37177 | 2748 | |
9e10e045 AD |
2749 | /* disable queue to avoid issues while updating state */ |
2750 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); | |
2d39d576 | 2751 | ixgbe_disable_rx_queue(adapter, ring); |
9e10e045 | 2752 | |
acd37177 AD |
2753 | IXGBE_WRITE_REG(hw, IXGBE_RDBAL(reg_idx), (rdba & DMA_BIT_MASK(32))); |
2754 | IXGBE_WRITE_REG(hw, IXGBE_RDBAH(reg_idx), (rdba >> 32)); | |
2755 | IXGBE_WRITE_REG(hw, IXGBE_RDLEN(reg_idx), | |
2756 | ring->count * sizeof(union ixgbe_adv_rx_desc)); | |
2757 | IXGBE_WRITE_REG(hw, IXGBE_RDH(reg_idx), 0); | |
2758 | IXGBE_WRITE_REG(hw, IXGBE_RDT(reg_idx), 0); | |
84ea2591 | 2759 | ring->tail = hw->hw_addr + IXGBE_RDT(reg_idx); |
9e10e045 AD |
2760 | |
2761 | ixgbe_configure_srrctl(adapter, ring); | |
2762 | ixgbe_configure_rscctl(adapter, ring); | |
2763 | ||
e9f98072 GR |
2764 | /* If operating in IOV mode set RLPML for X540 */ |
2765 | if ((adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) && | |
2766 | hw->mac.type == ixgbe_mac_X540) { | |
2767 | rxdctl &= ~IXGBE_RXDCTL_RLPMLMASK; | |
2768 | rxdctl |= ((ring->netdev->mtu + ETH_HLEN + | |
2769 | ETH_FCS_LEN + VLAN_HLEN) | IXGBE_RXDCTL_RLPML_EN); | |
2770 | } | |
2771 | ||
9e10e045 AD |
2772 | if (hw->mac.type == ixgbe_mac_82598EB) { |
2773 | /* | |
2774 | * enable cache line friendly hardware writes: | |
2775 | * PTHRESH=32 descriptors (half the internal cache), | |
2776 | * this also removes ugly rx_no_buffer_count increment | |
2777 | * HTHRESH=4 descriptors (to minimize latency on fetch) | |
2778 | * WTHRESH=8 burst writeback up to two cache lines | |
2779 | */ | |
2780 | rxdctl &= ~0x3FFFFF; | |
2781 | rxdctl |= 0x080420; | |
2782 | } | |
2783 | ||
2784 | /* enable receive descriptor ring */ | |
2785 | rxdctl |= IXGBE_RXDCTL_ENABLE; | |
2786 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(reg_idx), rxdctl); | |
2787 | ||
2788 | ixgbe_rx_desc_queue_enable(adapter, ring); | |
7d4987de | 2789 | ixgbe_alloc_rx_buffers(ring, ixgbe_desc_unused(ring)); |
acd37177 AD |
2790 | } |
2791 | ||
48654521 AD |
2792 | static void ixgbe_setup_psrtype(struct ixgbe_adapter *adapter) |
2793 | { | |
2794 | struct ixgbe_hw *hw = &adapter->hw; | |
2795 | int p; | |
2796 | ||
2797 | /* PSRTYPE must be initialized in non 82598 adapters */ | |
2798 | u32 psrtype = IXGBE_PSRTYPE_TCPHDR | | |
e8e9f696 JP |
2799 | IXGBE_PSRTYPE_UDPHDR | |
2800 | IXGBE_PSRTYPE_IPV4HDR | | |
48654521 | 2801 | IXGBE_PSRTYPE_L2HDR | |
e8e9f696 | 2802 | IXGBE_PSRTYPE_IPV6HDR; |
48654521 AD |
2803 | |
2804 | if (hw->mac.type == ixgbe_mac_82598EB) | |
2805 | return; | |
2806 | ||
2807 | if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) | |
2808 | psrtype |= (adapter->num_rx_queues_per_pool << 29); | |
2809 | ||
2810 | for (p = 0; p < adapter->num_rx_pools; p++) | |
2811 | IXGBE_WRITE_REG(hw, IXGBE_PSRTYPE(adapter->num_vfs + p), | |
2812 | psrtype); | |
2813 | } | |
2814 | ||
f5b4a52e AD |
2815 | static void ixgbe_configure_virtualization(struct ixgbe_adapter *adapter) |
2816 | { | |
2817 | struct ixgbe_hw *hw = &adapter->hw; | |
2818 | u32 gcr_ext; | |
2819 | u32 vt_reg_bits; | |
2820 | u32 reg_offset, vf_shift; | |
2821 | u32 vmdctl; | |
de4c7f65 | 2822 | int i; |
f5b4a52e AD |
2823 | |
2824 | if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) | |
2825 | return; | |
2826 | ||
2827 | vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL); | |
2828 | vt_reg_bits = IXGBE_VMD_CTL_VMDQ_EN | IXGBE_VT_CTL_REPLEN; | |
2829 | vt_reg_bits |= (adapter->num_vfs << IXGBE_VT_CTL_POOL_SHIFT); | |
2830 | IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl | vt_reg_bits); | |
2831 | ||
2832 | vf_shift = adapter->num_vfs % 32; | |
4cd6923d | 2833 | reg_offset = (adapter->num_vfs >= 32) ? 1 : 0; |
f5b4a52e AD |
2834 | |
2835 | /* Enable only the PF's pool for Tx/Rx */ | |
2836 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), (1 << vf_shift)); | |
2837 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset ^ 1), 0); | |
2838 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), (1 << vf_shift)); | |
2839 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset ^ 1), 0); | |
2840 | IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN); | |
2841 | ||
2842 | /* Map PF MAC address in RAR Entry 0 to first pool following VFs */ | |
2843 | hw->mac.ops.set_vmdq(hw, 0, adapter->num_vfs); | |
2844 | ||
2845 | /* | |
2846 | * Set up VF register offsets for selected VT Mode, | |
2847 | * i.e. 32 or 64 VFs for SR-IOV | |
2848 | */ | |
2849 | gcr_ext = IXGBE_READ_REG(hw, IXGBE_GCR_EXT); | |
2850 | gcr_ext |= IXGBE_GCR_EXT_MSIX_EN; | |
2851 | gcr_ext |= IXGBE_GCR_EXT_VT_MODE_64; | |
2852 | IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr_ext); | |
2853 | ||
2854 | /* enable Tx loopback for VF/PF communication */ | |
2855 | IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN); | |
a985b6c3 | 2856 | /* Enable MAC Anti-Spoofing */ |
a1cbb15c | 2857 | hw->mac.ops.set_mac_anti_spoofing(hw, |
de4c7f65 | 2858 | (adapter->num_vfs != 0), |
a985b6c3 | 2859 | adapter->num_vfs); |
de4c7f65 GR |
2860 | /* For VFs that have spoof checking turned off */ |
2861 | for (i = 0; i < adapter->num_vfs; i++) { | |
2862 | if (!adapter->vfinfo[i].spoofchk_enabled) | |
2863 | ixgbe_ndo_set_vf_spoofchk(adapter->netdev, i, false); | |
2864 | } | |
f5b4a52e AD |
2865 | } |
2866 | ||
477de6ed | 2867 | static void ixgbe_set_rx_buffer_len(struct ixgbe_adapter *adapter) |
9a799d71 | 2868 | { |
9a799d71 AK |
2869 | struct ixgbe_hw *hw = &adapter->hw; |
2870 | struct net_device *netdev = adapter->netdev; | |
2871 | int max_frame = netdev->mtu + ETH_HLEN + ETH_FCS_LEN; | |
7c6e0a43 | 2872 | int rx_buf_len; |
477de6ed AD |
2873 | struct ixgbe_ring *rx_ring; |
2874 | int i; | |
2875 | u32 mhadd, hlreg0; | |
48654521 | 2876 | |
9a799d71 | 2877 | /* Decide whether to use packet split mode or not */ |
a124339a DS |
2878 | /* On by default */ |
2879 | adapter->flags |= IXGBE_FLAG_RX_PS_ENABLED; | |
2880 | ||
1cdd1ec8 | 2881 | /* Do not use packet split if we're in SR-IOV Mode */ |
a124339a DS |
2882 | if (adapter->num_vfs) |
2883 | adapter->flags &= ~IXGBE_FLAG_RX_PS_ENABLED; | |
2884 | ||
2885 | /* Disable packet split due to 82599 erratum #45 */ | |
2886 | if (hw->mac.type == ixgbe_mac_82599EB) | |
2887 | adapter->flags &= ~IXGBE_FLAG_RX_PS_ENABLED; | |
9a799d71 | 2888 | |
63f39bd1 | 2889 | #ifdef IXGBE_FCOE |
477de6ed AD |
2890 | /* adjust max frame to be able to do baby jumbo for FCoE */ |
2891 | if ((adapter->flags & IXGBE_FLAG_FCOE_ENABLED) && | |
2892 | (max_frame < IXGBE_FCOE_JUMBO_FRAME_SIZE)) | |
2893 | max_frame = IXGBE_FCOE_JUMBO_FRAME_SIZE; | |
9a799d71 | 2894 | |
477de6ed AD |
2895 | #endif /* IXGBE_FCOE */ |
2896 | mhadd = IXGBE_READ_REG(hw, IXGBE_MHADD); | |
2897 | if (max_frame != (mhadd >> IXGBE_MHADD_MFS_SHIFT)) { | |
2898 | mhadd &= ~IXGBE_MHADD_MFS_MASK; | |
2899 | mhadd |= max_frame << IXGBE_MHADD_MFS_SHIFT; | |
2900 | ||
2901 | IXGBE_WRITE_REG(hw, IXGBE_MHADD, mhadd); | |
2902 | } | |
2903 | ||
919e78a6 AD |
2904 | /* MHADD will allow an extra 4 bytes past for vlan tagged frames */ |
2905 | max_frame += VLAN_HLEN; | |
2906 | ||
2907 | /* Set the RX buffer length according to the mode */ | |
2908 | if (adapter->flags & IXGBE_FLAG_RX_PS_ENABLED) { | |
2909 | rx_buf_len = IXGBE_RX_HDR_SIZE; | |
2910 | } else { | |
2911 | if (!(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) && | |
2912 | (netdev->mtu <= ETH_DATA_LEN)) | |
2913 | rx_buf_len = MAXIMUM_ETHERNET_VLAN_SIZE; | |
2914 | /* | |
2915 | * Make best use of allocation by using all but 1K of a | |
2916 | * power of 2 allocation that will be used for skb->head. | |
2917 | */ | |
2918 | else if (max_frame <= IXGBE_RXBUFFER_3K) | |
2919 | rx_buf_len = IXGBE_RXBUFFER_3K; | |
2920 | else if (max_frame <= IXGBE_RXBUFFER_7K) | |
2921 | rx_buf_len = IXGBE_RXBUFFER_7K; | |
2922 | else if (max_frame <= IXGBE_RXBUFFER_15K) | |
2923 | rx_buf_len = IXGBE_RXBUFFER_15K; | |
2924 | else | |
2925 | rx_buf_len = IXGBE_MAX_RXBUFFER; | |
2926 | } | |
2927 | ||
477de6ed AD |
2928 | hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0); |
2929 | /* set jumbo enable since MHADD.MFS is keeping size locked at max_frame */ | |
2930 | hlreg0 |= IXGBE_HLREG0_JUMBOEN; | |
2931 | IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0); | |
9a799d71 | 2932 | |
0cefafad JB |
2933 | /* |
2934 | * Setup the HW Rx Head and Tail Descriptor Pointers and | |
2935 | * the Base and Length of the Rx Descriptor Ring | |
2936 | */ | |
9a799d71 | 2937 | for (i = 0; i < adapter->num_rx_queues; i++) { |
4a0b9ca0 | 2938 | rx_ring = adapter->rx_ring[i]; |
a6616b42 | 2939 | rx_ring->rx_buf_len = rx_buf_len; |
cc41ac7c | 2940 | |
6e455b89 | 2941 | if (adapter->flags & IXGBE_FLAG_RX_PS_ENABLED) |
7d637bcc AD |
2942 | set_ring_ps_enabled(rx_ring); |
2943 | else | |
2944 | clear_ring_ps_enabled(rx_ring); | |
2945 | ||
2946 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) | |
2947 | set_ring_rsc_enabled(rx_ring); | |
1b3ff02e | 2948 | else |
7d637bcc | 2949 | clear_ring_rsc_enabled(rx_ring); |
cc41ac7c | 2950 | |
63f39bd1 | 2951 | #ifdef IXGBE_FCOE |
e8e9f696 | 2952 | if (netdev->features & NETIF_F_FCOE_MTU) { |
63f39bd1 YZ |
2953 | struct ixgbe_ring_feature *f; |
2954 | f = &adapter->ring_feature[RING_F_FCOE]; | |
6e455b89 | 2955 | if ((i >= f->mask) && (i < f->mask + f->indices)) { |
7d637bcc | 2956 | clear_ring_ps_enabled(rx_ring); |
6e455b89 YZ |
2957 | if (rx_buf_len < IXGBE_FCOE_JUMBO_FRAME_SIZE) |
2958 | rx_ring->rx_buf_len = | |
e8e9f696 | 2959 | IXGBE_FCOE_JUMBO_FRAME_SIZE; |
7d637bcc AD |
2960 | } else if (!ring_is_rsc_enabled(rx_ring) && |
2961 | !ring_is_ps_enabled(rx_ring)) { | |
2962 | rx_ring->rx_buf_len = | |
2963 | IXGBE_FCOE_JUMBO_FRAME_SIZE; | |
6e455b89 | 2964 | } |
63f39bd1 | 2965 | } |
63f39bd1 | 2966 | #endif /* IXGBE_FCOE */ |
477de6ed | 2967 | } |
477de6ed AD |
2968 | } |
2969 | ||
7367096a AD |
2970 | static void ixgbe_setup_rdrxctl(struct ixgbe_adapter *adapter) |
2971 | { | |
2972 | struct ixgbe_hw *hw = &adapter->hw; | |
2973 | u32 rdrxctl = IXGBE_READ_REG(hw, IXGBE_RDRXCTL); | |
2974 | ||
2975 | switch (hw->mac.type) { | |
2976 | case ixgbe_mac_82598EB: | |
2977 | /* | |
2978 | * For VMDq support of different descriptor types or | |
2979 | * buffer sizes through the use of multiple SRRCTL | |
2980 | * registers, RDRXCTL.MVMEN must be set to 1 | |
2981 | * | |
2982 | * also, the manual doesn't mention it clearly but DCA hints | |
2983 | * will only use queue 0's tags unless this bit is set. Side | |
2984 | * effects of setting this bit are only that SRRCTL must be | |
2985 | * fully programmed [0..15] | |
2986 | */ | |
2987 | rdrxctl |= IXGBE_RDRXCTL_MVMEN; | |
2988 | break; | |
2989 | case ixgbe_mac_82599EB: | |
b93a2226 | 2990 | case ixgbe_mac_X540: |
7367096a AD |
2991 | /* Disable RSC for ACK packets */ |
2992 | IXGBE_WRITE_REG(hw, IXGBE_RSCDBU, | |
2993 | (IXGBE_RSCDBU_RSCACKDIS | IXGBE_READ_REG(hw, IXGBE_RSCDBU))); | |
2994 | rdrxctl &= ~IXGBE_RDRXCTL_RSCFRSTSIZE; | |
2995 | /* hardware requires some bits to be set by default */ | |
2996 | rdrxctl |= (IXGBE_RDRXCTL_RSCACKC | IXGBE_RDRXCTL_FCOE_WRFIX); | |
2997 | rdrxctl |= IXGBE_RDRXCTL_CRCSTRIP; | |
2998 | break; | |
2999 | default: | |
3000 | /* We should do nothing since we don't know this hardware */ | |
3001 | return; | |
3002 | } | |
3003 | ||
3004 | IXGBE_WRITE_REG(hw, IXGBE_RDRXCTL, rdrxctl); | |
3005 | } | |
3006 | ||
477de6ed AD |
3007 | /** |
3008 | * ixgbe_configure_rx - Configure 8259x Receive Unit after Reset | |
3009 | * @adapter: board private structure | |
3010 | * | |
3011 | * Configure the Rx unit of the MAC after a reset. | |
3012 | **/ | |
3013 | static void ixgbe_configure_rx(struct ixgbe_adapter *adapter) | |
3014 | { | |
3015 | struct ixgbe_hw *hw = &adapter->hw; | |
477de6ed AD |
3016 | int i; |
3017 | u32 rxctrl; | |
477de6ed AD |
3018 | |
3019 | /* disable receives while setting up the descriptors */ | |
3020 | rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL); | |
3021 | IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl & ~IXGBE_RXCTRL_RXEN); | |
3022 | ||
3023 | ixgbe_setup_psrtype(adapter); | |
7367096a | 3024 | ixgbe_setup_rdrxctl(adapter); |
477de6ed | 3025 | |
9e10e045 | 3026 | /* Program registers for the distribution of queues */ |
f5b4a52e | 3027 | ixgbe_setup_mrqc(adapter); |
f5b4a52e | 3028 | |
9e10e045 AD |
3029 | ixgbe_set_uta(adapter); |
3030 | ||
477de6ed AD |
3031 | /* set_rx_buffer_len must be called before ring initialization */ |
3032 | ixgbe_set_rx_buffer_len(adapter); | |
3033 | ||
3034 | /* | |
3035 | * Setup the HW Rx Head and Tail Descriptor Pointers and | |
3036 | * the Base and Length of the Rx Descriptor Ring | |
3037 | */ | |
9e10e045 AD |
3038 | for (i = 0; i < adapter->num_rx_queues; i++) |
3039 | ixgbe_configure_rx_ring(adapter, adapter->rx_ring[i]); | |
177db6ff | 3040 | |
9e10e045 AD |
3041 | /* disable drop enable for 82598 parts */ |
3042 | if (hw->mac.type == ixgbe_mac_82598EB) | |
3043 | rxctrl |= IXGBE_RXCTRL_DMBYPS; | |
3044 | ||
3045 | /* enable all receives */ | |
3046 | rxctrl |= IXGBE_RXCTRL_RXEN; | |
3047 | hw->mac.ops.enable_rx_dma(hw, rxctrl); | |
9a799d71 AK |
3048 | } |
3049 | ||
8e586137 | 3050 | static int ixgbe_vlan_rx_add_vid(struct net_device *netdev, u16 vid) |
068c89b0 DS |
3051 | { |
3052 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
3053 | struct ixgbe_hw *hw = &adapter->hw; | |
1ada1b1b | 3054 | int pool_ndx = adapter->num_vfs; |
068c89b0 DS |
3055 | |
3056 | /* add VID to filter table */ | |
1ada1b1b | 3057 | hw->mac.ops.set_vfta(&adapter->hw, vid, pool_ndx, true); |
f62bbb5e | 3058 | set_bit(vid, adapter->active_vlans); |
8e586137 JP |
3059 | |
3060 | return 0; | |
068c89b0 DS |
3061 | } |
3062 | ||
8e586137 | 3063 | static int ixgbe_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) |
068c89b0 DS |
3064 | { |
3065 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
3066 | struct ixgbe_hw *hw = &adapter->hw; | |
1ada1b1b | 3067 | int pool_ndx = adapter->num_vfs; |
068c89b0 | 3068 | |
068c89b0 | 3069 | /* remove VID from filter table */ |
1ada1b1b | 3070 | hw->mac.ops.set_vfta(&adapter->hw, vid, pool_ndx, false); |
f62bbb5e | 3071 | clear_bit(vid, adapter->active_vlans); |
8e586137 JP |
3072 | |
3073 | return 0; | |
068c89b0 DS |
3074 | } |
3075 | ||
5f6c0181 JB |
3076 | /** |
3077 | * ixgbe_vlan_filter_disable - helper to disable hw vlan filtering | |
3078 | * @adapter: driver data | |
3079 | */ | |
3080 | static void ixgbe_vlan_filter_disable(struct ixgbe_adapter *adapter) | |
3081 | { | |
3082 | struct ixgbe_hw *hw = &adapter->hw; | |
f62bbb5e JG |
3083 | u32 vlnctrl; |
3084 | ||
3085 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); | |
3086 | vlnctrl &= ~(IXGBE_VLNCTRL_VFE | IXGBE_VLNCTRL_CFIEN); | |
3087 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); | |
3088 | } | |
3089 | ||
3090 | /** | |
3091 | * ixgbe_vlan_filter_enable - helper to enable hw vlan filtering | |
3092 | * @adapter: driver data | |
3093 | */ | |
3094 | static void ixgbe_vlan_filter_enable(struct ixgbe_adapter *adapter) | |
3095 | { | |
3096 | struct ixgbe_hw *hw = &adapter->hw; | |
3097 | u32 vlnctrl; | |
3098 | ||
3099 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); | |
3100 | vlnctrl |= IXGBE_VLNCTRL_VFE; | |
3101 | vlnctrl &= ~IXGBE_VLNCTRL_CFIEN; | |
3102 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); | |
3103 | } | |
3104 | ||
3105 | /** | |
3106 | * ixgbe_vlan_strip_disable - helper to disable hw vlan stripping | |
3107 | * @adapter: driver data | |
3108 | */ | |
3109 | static void ixgbe_vlan_strip_disable(struct ixgbe_adapter *adapter) | |
3110 | { | |
3111 | struct ixgbe_hw *hw = &adapter->hw; | |
3112 | u32 vlnctrl; | |
5f6c0181 JB |
3113 | int i, j; |
3114 | ||
3115 | switch (hw->mac.type) { | |
3116 | case ixgbe_mac_82598EB: | |
f62bbb5e JG |
3117 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); |
3118 | vlnctrl &= ~IXGBE_VLNCTRL_VME; | |
5f6c0181 JB |
3119 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); |
3120 | break; | |
3121 | case ixgbe_mac_82599EB: | |
b93a2226 | 3122 | case ixgbe_mac_X540: |
5f6c0181 JB |
3123 | for (i = 0; i < adapter->num_rx_queues; i++) { |
3124 | j = adapter->rx_ring[i]->reg_idx; | |
3125 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(j)); | |
3126 | vlnctrl &= ~IXGBE_RXDCTL_VME; | |
3127 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(j), vlnctrl); | |
3128 | } | |
3129 | break; | |
3130 | default: | |
3131 | break; | |
3132 | } | |
3133 | } | |
3134 | ||
3135 | /** | |
f62bbb5e | 3136 | * ixgbe_vlan_strip_enable - helper to enable hw vlan stripping |
5f6c0181 JB |
3137 | * @adapter: driver data |
3138 | */ | |
f62bbb5e | 3139 | static void ixgbe_vlan_strip_enable(struct ixgbe_adapter *adapter) |
5f6c0181 JB |
3140 | { |
3141 | struct ixgbe_hw *hw = &adapter->hw; | |
f62bbb5e | 3142 | u32 vlnctrl; |
5f6c0181 JB |
3143 | int i, j; |
3144 | ||
3145 | switch (hw->mac.type) { | |
3146 | case ixgbe_mac_82598EB: | |
f62bbb5e JG |
3147 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); |
3148 | vlnctrl |= IXGBE_VLNCTRL_VME; | |
5f6c0181 JB |
3149 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); |
3150 | break; | |
3151 | case ixgbe_mac_82599EB: | |
b93a2226 | 3152 | case ixgbe_mac_X540: |
5f6c0181 JB |
3153 | for (i = 0; i < adapter->num_rx_queues; i++) { |
3154 | j = adapter->rx_ring[i]->reg_idx; | |
3155 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(j)); | |
3156 | vlnctrl |= IXGBE_RXDCTL_VME; | |
3157 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(j), vlnctrl); | |
3158 | } | |
3159 | break; | |
3160 | default: | |
3161 | break; | |
3162 | } | |
3163 | } | |
3164 | ||
9a799d71 AK |
3165 | static void ixgbe_restore_vlan(struct ixgbe_adapter *adapter) |
3166 | { | |
f62bbb5e | 3167 | u16 vid; |
9a799d71 | 3168 | |
f62bbb5e JG |
3169 | ixgbe_vlan_rx_add_vid(adapter->netdev, 0); |
3170 | ||
3171 | for_each_set_bit(vid, adapter->active_vlans, VLAN_N_VID) | |
3172 | ixgbe_vlan_rx_add_vid(adapter->netdev, vid); | |
9a799d71 AK |
3173 | } |
3174 | ||
2850062a AD |
3175 | /** |
3176 | * ixgbe_write_uc_addr_list - write unicast addresses to RAR table | |
3177 | * @netdev: network interface device structure | |
3178 | * | |
3179 | * Writes unicast address list to the RAR table. | |
3180 | * Returns: -ENOMEM on failure/insufficient address space | |
3181 | * 0 on no addresses written | |
3182 | * X on writing X addresses to the RAR table | |
3183 | **/ | |
3184 | static int ixgbe_write_uc_addr_list(struct net_device *netdev) | |
3185 | { | |
3186 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
3187 | struct ixgbe_hw *hw = &adapter->hw; | |
3188 | unsigned int vfn = adapter->num_vfs; | |
a1cbb15c | 3189 | unsigned int rar_entries = IXGBE_MAX_PF_MACVLANS; |
2850062a AD |
3190 | int count = 0; |
3191 | ||
3192 | /* return ENOMEM indicating insufficient memory for addresses */ | |
3193 | if (netdev_uc_count(netdev) > rar_entries) | |
3194 | return -ENOMEM; | |
3195 | ||
3196 | if (!netdev_uc_empty(netdev) && rar_entries) { | |
3197 | struct netdev_hw_addr *ha; | |
3198 | /* return error if we do not support writing to RAR table */ | |
3199 | if (!hw->mac.ops.set_rar) | |
3200 | return -ENOMEM; | |
3201 | ||
3202 | netdev_for_each_uc_addr(ha, netdev) { | |
3203 | if (!rar_entries) | |
3204 | break; | |
3205 | hw->mac.ops.set_rar(hw, rar_entries--, ha->addr, | |
3206 | vfn, IXGBE_RAH_AV); | |
3207 | count++; | |
3208 | } | |
3209 | } | |
3210 | /* write the addresses in reverse order to avoid write combining */ | |
3211 | for (; rar_entries > 0 ; rar_entries--) | |
3212 | hw->mac.ops.clear_rar(hw, rar_entries); | |
3213 | ||
3214 | return count; | |
3215 | } | |
3216 | ||
9a799d71 | 3217 | /** |
2c5645cf | 3218 | * ixgbe_set_rx_mode - Unicast, Multicast and Promiscuous mode set |
9a799d71 AK |
3219 | * @netdev: network interface device structure |
3220 | * | |
2c5645cf CL |
3221 | * The set_rx_method entry point is called whenever the unicast/multicast |
3222 | * address list or the network interface flags are updated. This routine is | |
3223 | * responsible for configuring the hardware for proper unicast, multicast and | |
3224 | * promiscuous mode. | |
9a799d71 | 3225 | **/ |
7f870475 | 3226 | void ixgbe_set_rx_mode(struct net_device *netdev) |
9a799d71 AK |
3227 | { |
3228 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
3229 | struct ixgbe_hw *hw = &adapter->hw; | |
2850062a AD |
3230 | u32 fctrl, vmolr = IXGBE_VMOLR_BAM | IXGBE_VMOLR_AUPE; |
3231 | int count; | |
9a799d71 AK |
3232 | |
3233 | /* Check for Promiscuous and All Multicast modes */ | |
3234 | ||
3235 | fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL); | |
3236 | ||
f5dc442b AD |
3237 | /* set all bits that we expect to always be set */ |
3238 | fctrl |= IXGBE_FCTRL_BAM; | |
3239 | fctrl |= IXGBE_FCTRL_DPF; /* discard pause frames when FC enabled */ | |
3240 | fctrl |= IXGBE_FCTRL_PMCF; | |
3241 | ||
2850062a AD |
3242 | /* clear the bits we are changing the status of */ |
3243 | fctrl &= ~(IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE); | |
3244 | ||
9a799d71 | 3245 | if (netdev->flags & IFF_PROMISC) { |
e433ea1f | 3246 | hw->addr_ctrl.user_set_promisc = true; |
9a799d71 | 3247 | fctrl |= (IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE); |
2850062a | 3248 | vmolr |= (IXGBE_VMOLR_ROPE | IXGBE_VMOLR_MPE); |
5f6c0181 JB |
3249 | /* don't hardware filter vlans in promisc mode */ |
3250 | ixgbe_vlan_filter_disable(adapter); | |
9a799d71 | 3251 | } else { |
746b9f02 PM |
3252 | if (netdev->flags & IFF_ALLMULTI) { |
3253 | fctrl |= IXGBE_FCTRL_MPE; | |
2850062a AD |
3254 | vmolr |= IXGBE_VMOLR_MPE; |
3255 | } else { | |
3256 | /* | |
3257 | * Write addresses to the MTA, if the attempt fails | |
25985edc | 3258 | * then we should just turn on promiscuous mode so |
2850062a AD |
3259 | * that we can at least receive multicast traffic |
3260 | */ | |
3261 | hw->mac.ops.update_mc_addr_list(hw, netdev); | |
3262 | vmolr |= IXGBE_VMOLR_ROMPE; | |
746b9f02 | 3263 | } |
5f6c0181 | 3264 | ixgbe_vlan_filter_enable(adapter); |
e433ea1f | 3265 | hw->addr_ctrl.user_set_promisc = false; |
2850062a AD |
3266 | /* |
3267 | * Write addresses to available RAR registers, if there is not | |
3268 | * sufficient space to store all the addresses then enable | |
25985edc | 3269 | * unicast promiscuous mode |
2850062a AD |
3270 | */ |
3271 | count = ixgbe_write_uc_addr_list(netdev); | |
3272 | if (count < 0) { | |
3273 | fctrl |= IXGBE_FCTRL_UPE; | |
3274 | vmolr |= IXGBE_VMOLR_ROPE; | |
3275 | } | |
9a799d71 AK |
3276 | } |
3277 | ||
2850062a | 3278 | if (adapter->num_vfs) { |
1cdd1ec8 | 3279 | ixgbe_restore_vf_multicasts(adapter); |
2850062a AD |
3280 | vmolr |= IXGBE_READ_REG(hw, IXGBE_VMOLR(adapter->num_vfs)) & |
3281 | ~(IXGBE_VMOLR_MPE | IXGBE_VMOLR_ROMPE | | |
3282 | IXGBE_VMOLR_ROPE); | |
3283 | IXGBE_WRITE_REG(hw, IXGBE_VMOLR(adapter->num_vfs), vmolr); | |
3284 | } | |
3285 | ||
3286 | IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl); | |
f62bbb5e JG |
3287 | |
3288 | if (netdev->features & NETIF_F_HW_VLAN_RX) | |
3289 | ixgbe_vlan_strip_enable(adapter); | |
3290 | else | |
3291 | ixgbe_vlan_strip_disable(adapter); | |
9a799d71 AK |
3292 | } |
3293 | ||
021230d4 AV |
3294 | static void ixgbe_napi_enable_all(struct ixgbe_adapter *adapter) |
3295 | { | |
3296 | int q_idx; | |
3297 | struct ixgbe_q_vector *q_vector; | |
3298 | int q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; | |
3299 | ||
3300 | /* legacy and MSI only use one vector */ | |
3301 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) | |
3302 | q_vectors = 1; | |
3303 | ||
3304 | for (q_idx = 0; q_idx < q_vectors; q_idx++) { | |
7a921c93 | 3305 | q_vector = adapter->q_vector[q_idx]; |
4ff7fb12 | 3306 | napi_enable(&q_vector->napi); |
021230d4 AV |
3307 | } |
3308 | } | |
3309 | ||
3310 | static void ixgbe_napi_disable_all(struct ixgbe_adapter *adapter) | |
3311 | { | |
3312 | int q_idx; | |
3313 | struct ixgbe_q_vector *q_vector; | |
3314 | int q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; | |
3315 | ||
3316 | /* legacy and MSI only use one vector */ | |
3317 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) | |
3318 | q_vectors = 1; | |
3319 | ||
3320 | for (q_idx = 0; q_idx < q_vectors; q_idx++) { | |
7a921c93 | 3321 | q_vector = adapter->q_vector[q_idx]; |
021230d4 AV |
3322 | napi_disable(&q_vector->napi); |
3323 | } | |
3324 | } | |
3325 | ||
7a6b6f51 | 3326 | #ifdef CONFIG_IXGBE_DCB |
2f90b865 AD |
3327 | /* |
3328 | * ixgbe_configure_dcb - Configure DCB hardware | |
3329 | * @adapter: ixgbe adapter struct | |
3330 | * | |
3331 | * This is called by the driver on open to configure the DCB hardware. | |
3332 | * This is also called by the gennetlink interface when reconfiguring | |
3333 | * the DCB state. | |
3334 | */ | |
3335 | static void ixgbe_configure_dcb(struct ixgbe_adapter *adapter) | |
3336 | { | |
3337 | struct ixgbe_hw *hw = &adapter->hw; | |
9806307a | 3338 | int max_frame = adapter->netdev->mtu + ETH_HLEN + ETH_FCS_LEN; |
2f90b865 | 3339 | |
67ebd791 AD |
3340 | if (!(adapter->flags & IXGBE_FLAG_DCB_ENABLED)) { |
3341 | if (hw->mac.type == ixgbe_mac_82598EB) | |
3342 | netif_set_gso_max_size(adapter->netdev, 65536); | |
3343 | return; | |
3344 | } | |
3345 | ||
3346 | if (hw->mac.type == ixgbe_mac_82598EB) | |
3347 | netif_set_gso_max_size(adapter->netdev, 32768); | |
3348 | ||
2f90b865 | 3349 | |
2f90b865 | 3350 | /* Enable VLAN tag insert/strip */ |
f62bbb5e | 3351 | adapter->netdev->features |= NETIF_F_HW_VLAN_RX; |
5f6c0181 | 3352 | |
2f90b865 | 3353 | hw->mac.ops.set_vfta(&adapter->hw, 0, 0, true); |
01fa7d90 | 3354 | |
971060b1 | 3355 | #ifdef IXGBE_FCOE |
b120818e JF |
3356 | if (adapter->netdev->features & NETIF_F_FCOE_MTU) |
3357 | max_frame = max(max_frame, IXGBE_FCOE_JUMBO_FRAME_SIZE); | |
c27931da | 3358 | #endif |
b120818e JF |
3359 | |
3360 | /* reconfigure the hardware */ | |
3361 | if (adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE) { | |
c27931da JF |
3362 | ixgbe_dcb_calculate_tc_credits(hw, &adapter->dcb_cfg, max_frame, |
3363 | DCB_TX_CONFIG); | |
3364 | ixgbe_dcb_calculate_tc_credits(hw, &adapter->dcb_cfg, max_frame, | |
3365 | DCB_RX_CONFIG); | |
3366 | ixgbe_dcb_hw_config(hw, &adapter->dcb_cfg); | |
b120818e JF |
3367 | } else if (adapter->ixgbe_ieee_ets && adapter->ixgbe_ieee_pfc) { |
3368 | ixgbe_dcb_hw_ets(&adapter->hw, | |
3369 | adapter->ixgbe_ieee_ets, | |
3370 | max_frame); | |
3371 | ixgbe_dcb_hw_pfc_config(&adapter->hw, | |
3372 | adapter->ixgbe_ieee_pfc->pfc_en, | |
3373 | adapter->ixgbe_ieee_ets->prio_tc); | |
c27931da | 3374 | } |
8187cd48 JF |
3375 | |
3376 | /* Enable RSS Hash per TC */ | |
3377 | if (hw->mac.type != ixgbe_mac_82598EB) { | |
3378 | int i; | |
3379 | u32 reg = 0; | |
3380 | ||
3381 | for (i = 0; i < MAX_TRAFFIC_CLASS; i++) { | |
3382 | u8 msb = 0; | |
3383 | u8 cnt = adapter->netdev->tc_to_txq[i].count; | |
3384 | ||
3385 | while (cnt >>= 1) | |
3386 | msb++; | |
3387 | ||
3388 | reg |= msb << IXGBE_RQTC_SHIFT_TC(i); | |
3389 | } | |
3390 | IXGBE_WRITE_REG(hw, IXGBE_RQTC, reg); | |
3391 | } | |
2f90b865 | 3392 | } |
9da712d2 JF |
3393 | #endif |
3394 | ||
3395 | /* Additional bittime to account for IXGBE framing */ | |
3396 | #define IXGBE_ETH_FRAMING 20 | |
3397 | ||
3398 | /* | |
3399 | * ixgbe_hpbthresh - calculate high water mark for flow control | |
3400 | * | |
3401 | * @adapter: board private structure to calculate for | |
3402 | * @pb - packet buffer to calculate | |
3403 | */ | |
3404 | static int ixgbe_hpbthresh(struct ixgbe_adapter *adapter, int pb) | |
3405 | { | |
3406 | struct ixgbe_hw *hw = &adapter->hw; | |
3407 | struct net_device *dev = adapter->netdev; | |
3408 | int link, tc, kb, marker; | |
3409 | u32 dv_id, rx_pba; | |
3410 | ||
3411 | /* Calculate max LAN frame size */ | |
3412 | tc = link = dev->mtu + ETH_HLEN + ETH_FCS_LEN + IXGBE_ETH_FRAMING; | |
3413 | ||
3414 | #ifdef IXGBE_FCOE | |
3415 | /* FCoE traffic class uses FCOE jumbo frames */ | |
3416 | if (dev->features & NETIF_F_FCOE_MTU) { | |
3417 | int fcoe_pb = 0; | |
2f90b865 | 3418 | |
9da712d2 JF |
3419 | #ifdef CONFIG_IXGBE_DCB |
3420 | fcoe_pb = netdev_get_prio_tc_map(dev, adapter->fcoe.up); | |
3421 | ||
3422 | #endif | |
3423 | if (fcoe_pb == pb && tc < IXGBE_FCOE_JUMBO_FRAME_SIZE) | |
3424 | tc = IXGBE_FCOE_JUMBO_FRAME_SIZE; | |
3425 | } | |
2f90b865 | 3426 | #endif |
80605c65 | 3427 | |
9da712d2 JF |
3428 | /* Calculate delay value for device */ |
3429 | switch (hw->mac.type) { | |
3430 | case ixgbe_mac_X540: | |
3431 | dv_id = IXGBE_DV_X540(link, tc); | |
3432 | break; | |
3433 | default: | |
3434 | dv_id = IXGBE_DV(link, tc); | |
3435 | break; | |
3436 | } | |
3437 | ||
3438 | /* Loopback switch introduces additional latency */ | |
3439 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
3440 | dv_id += IXGBE_B2BT(tc); | |
3441 | ||
3442 | /* Delay value is calculated in bit times convert to KB */ | |
3443 | kb = IXGBE_BT2KB(dv_id); | |
3444 | rx_pba = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(pb)) >> 10; | |
3445 | ||
3446 | marker = rx_pba - kb; | |
3447 | ||
3448 | /* It is possible that the packet buffer is not large enough | |
3449 | * to provide required headroom. In this case throw an error | |
3450 | * to user and a do the best we can. | |
3451 | */ | |
3452 | if (marker < 0) { | |
3453 | e_warn(drv, "Packet Buffer(%i) can not provide enough" | |
3454 | "headroom to support flow control." | |
3455 | "Decrease MTU or number of traffic classes\n", pb); | |
3456 | marker = tc + 1; | |
3457 | } | |
3458 | ||
3459 | return marker; | |
3460 | } | |
3461 | ||
3462 | /* | |
3463 | * ixgbe_lpbthresh - calculate low water mark for for flow control | |
3464 | * | |
3465 | * @adapter: board private structure to calculate for | |
3466 | * @pb - packet buffer to calculate | |
3467 | */ | |
3468 | static int ixgbe_lpbthresh(struct ixgbe_adapter *adapter) | |
3469 | { | |
3470 | struct ixgbe_hw *hw = &adapter->hw; | |
3471 | struct net_device *dev = adapter->netdev; | |
3472 | int tc; | |
3473 | u32 dv_id; | |
3474 | ||
3475 | /* Calculate max LAN frame size */ | |
3476 | tc = dev->mtu + ETH_HLEN + ETH_FCS_LEN; | |
3477 | ||
3478 | /* Calculate delay value for device */ | |
3479 | switch (hw->mac.type) { | |
3480 | case ixgbe_mac_X540: | |
3481 | dv_id = IXGBE_LOW_DV_X540(tc); | |
3482 | break; | |
3483 | default: | |
3484 | dv_id = IXGBE_LOW_DV(tc); | |
3485 | break; | |
3486 | } | |
3487 | ||
3488 | /* Delay value is calculated in bit times convert to KB */ | |
3489 | return IXGBE_BT2KB(dv_id); | |
3490 | } | |
3491 | ||
3492 | /* | |
3493 | * ixgbe_pbthresh_setup - calculate and setup high low water marks | |
3494 | */ | |
3495 | static void ixgbe_pbthresh_setup(struct ixgbe_adapter *adapter) | |
3496 | { | |
3497 | struct ixgbe_hw *hw = &adapter->hw; | |
3498 | int num_tc = netdev_get_num_tc(adapter->netdev); | |
3499 | int i; | |
3500 | ||
3501 | if (!num_tc) | |
3502 | num_tc = 1; | |
3503 | ||
3504 | hw->fc.low_water = ixgbe_lpbthresh(adapter); | |
3505 | ||
3506 | for (i = 0; i < num_tc; i++) { | |
3507 | hw->fc.high_water[i] = ixgbe_hpbthresh(adapter, i); | |
3508 | ||
3509 | /* Low water marks must not be larger than high water marks */ | |
3510 | if (hw->fc.low_water > hw->fc.high_water[i]) | |
3511 | hw->fc.low_water = 0; | |
3512 | } | |
3513 | } | |
3514 | ||
80605c65 JF |
3515 | static void ixgbe_configure_pb(struct ixgbe_adapter *adapter) |
3516 | { | |
80605c65 | 3517 | struct ixgbe_hw *hw = &adapter->hw; |
f7e1027f AD |
3518 | int hdrm; |
3519 | u8 tc = netdev_get_num_tc(adapter->netdev); | |
80605c65 JF |
3520 | |
3521 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE || | |
3522 | adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) | |
f7e1027f AD |
3523 | hdrm = 32 << adapter->fdir_pballoc; |
3524 | else | |
3525 | hdrm = 0; | |
80605c65 | 3526 | |
f7e1027f | 3527 | hw->mac.ops.set_rxpba(hw, tc, hdrm, PBA_STRATEGY_EQUAL); |
9da712d2 | 3528 | ixgbe_pbthresh_setup(adapter); |
80605c65 JF |
3529 | } |
3530 | ||
e4911d57 AD |
3531 | static void ixgbe_fdir_filter_restore(struct ixgbe_adapter *adapter) |
3532 | { | |
3533 | struct ixgbe_hw *hw = &adapter->hw; | |
3534 | struct hlist_node *node, *node2; | |
3535 | struct ixgbe_fdir_filter *filter; | |
3536 | ||
3537 | spin_lock(&adapter->fdir_perfect_lock); | |
3538 | ||
3539 | if (!hlist_empty(&adapter->fdir_filter_list)) | |
3540 | ixgbe_fdir_set_input_mask_82599(hw, &adapter->fdir_mask); | |
3541 | ||
3542 | hlist_for_each_entry_safe(filter, node, node2, | |
3543 | &adapter->fdir_filter_list, fdir_node) { | |
3544 | ixgbe_fdir_write_perfect_filter_82599(hw, | |
1f4d5183 AD |
3545 | &filter->filter, |
3546 | filter->sw_idx, | |
3547 | (filter->action == IXGBE_FDIR_DROP_QUEUE) ? | |
3548 | IXGBE_FDIR_DROP_QUEUE : | |
3549 | adapter->rx_ring[filter->action]->reg_idx); | |
e4911d57 AD |
3550 | } |
3551 | ||
3552 | spin_unlock(&adapter->fdir_perfect_lock); | |
3553 | } | |
3554 | ||
9a799d71 AK |
3555 | static void ixgbe_configure(struct ixgbe_adapter *adapter) |
3556 | { | |
80605c65 | 3557 | ixgbe_configure_pb(adapter); |
7a6b6f51 | 3558 | #ifdef CONFIG_IXGBE_DCB |
67ebd791 | 3559 | ixgbe_configure_dcb(adapter); |
2f90b865 | 3560 | #endif |
9a799d71 | 3561 | |
4c1d7b4b | 3562 | ixgbe_set_rx_mode(adapter->netdev); |
f62bbb5e JG |
3563 | ixgbe_restore_vlan(adapter); |
3564 | ||
eacd73f7 YZ |
3565 | #ifdef IXGBE_FCOE |
3566 | if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) | |
3567 | ixgbe_configure_fcoe(adapter); | |
3568 | ||
3569 | #endif /* IXGBE_FCOE */ | |
c4cf55e5 | 3570 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { |
4c1d7b4b AD |
3571 | ixgbe_init_fdir_signature_82599(&adapter->hw, |
3572 | adapter->fdir_pballoc); | |
e4911d57 AD |
3573 | } else if (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) { |
3574 | ixgbe_init_fdir_perfect_82599(&adapter->hw, | |
3575 | adapter->fdir_pballoc); | |
3576 | ixgbe_fdir_filter_restore(adapter); | |
c4cf55e5 | 3577 | } |
4c1d7b4b | 3578 | |
933d41f1 | 3579 | ixgbe_configure_virtualization(adapter); |
c4cf55e5 | 3580 | |
9a799d71 AK |
3581 | ixgbe_configure_tx(adapter); |
3582 | ixgbe_configure_rx(adapter); | |
9a799d71 AK |
3583 | } |
3584 | ||
e8e26350 PW |
3585 | static inline bool ixgbe_is_sfp(struct ixgbe_hw *hw) |
3586 | { | |
3587 | switch (hw->phy.type) { | |
3588 | case ixgbe_phy_sfp_avago: | |
3589 | case ixgbe_phy_sfp_ftl: | |
3590 | case ixgbe_phy_sfp_intel: | |
3591 | case ixgbe_phy_sfp_unknown: | |
ea0a04df DS |
3592 | case ixgbe_phy_sfp_passive_tyco: |
3593 | case ixgbe_phy_sfp_passive_unknown: | |
3594 | case ixgbe_phy_sfp_active_unknown: | |
3595 | case ixgbe_phy_sfp_ftl_active: | |
e8e26350 | 3596 | return true; |
8917b447 AD |
3597 | case ixgbe_phy_nl: |
3598 | if (hw->mac.type == ixgbe_mac_82598EB) | |
3599 | return true; | |
e8e26350 PW |
3600 | default: |
3601 | return false; | |
3602 | } | |
3603 | } | |
3604 | ||
0ecc061d | 3605 | /** |
e8e26350 PW |
3606 | * ixgbe_sfp_link_config - set up SFP+ link |
3607 | * @adapter: pointer to private adapter struct | |
3608 | **/ | |
3609 | static void ixgbe_sfp_link_config(struct ixgbe_adapter *adapter) | |
3610 | { | |
7086400d | 3611 | /* |
52f33af8 | 3612 | * We are assuming the worst case scenario here, and that |
7086400d AD |
3613 | * is that an SFP was inserted/removed after the reset |
3614 | * but before SFP detection was enabled. As such the best | |
3615 | * solution is to just start searching as soon as we start | |
3616 | */ | |
3617 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) | |
3618 | adapter->flags2 |= IXGBE_FLAG2_SEARCH_FOR_SFP; | |
e8e26350 | 3619 | |
7086400d | 3620 | adapter->flags2 |= IXGBE_FLAG2_SFP_NEEDS_RESET; |
e8e26350 PW |
3621 | } |
3622 | ||
3623 | /** | |
3624 | * ixgbe_non_sfp_link_config - set up non-SFP+ link | |
0ecc061d PWJ |
3625 | * @hw: pointer to private hardware struct |
3626 | * | |
3627 | * Returns 0 on success, negative on failure | |
3628 | **/ | |
e8e26350 | 3629 | static int ixgbe_non_sfp_link_config(struct ixgbe_hw *hw) |
0ecc061d PWJ |
3630 | { |
3631 | u32 autoneg; | |
8620a103 | 3632 | bool negotiation, link_up = false; |
0ecc061d PWJ |
3633 | u32 ret = IXGBE_ERR_LINK_SETUP; |
3634 | ||
3635 | if (hw->mac.ops.check_link) | |
3636 | ret = hw->mac.ops.check_link(hw, &autoneg, &link_up, false); | |
3637 | ||
3638 | if (ret) | |
3639 | goto link_cfg_out; | |
3640 | ||
0b0c2b31 ET |
3641 | autoneg = hw->phy.autoneg_advertised; |
3642 | if ((!autoneg) && (hw->mac.ops.get_link_capabilities)) | |
e8e9f696 JP |
3643 | ret = hw->mac.ops.get_link_capabilities(hw, &autoneg, |
3644 | &negotiation); | |
0ecc061d PWJ |
3645 | if (ret) |
3646 | goto link_cfg_out; | |
3647 | ||
8620a103 MC |
3648 | if (hw->mac.ops.setup_link) |
3649 | ret = hw->mac.ops.setup_link(hw, autoneg, negotiation, link_up); | |
0ecc061d PWJ |
3650 | link_cfg_out: |
3651 | return ret; | |
3652 | } | |
3653 | ||
a34bcfff | 3654 | static void ixgbe_setup_gpie(struct ixgbe_adapter *adapter) |
9a799d71 | 3655 | { |
9a799d71 | 3656 | struct ixgbe_hw *hw = &adapter->hw; |
a34bcfff | 3657 | u32 gpie = 0; |
9a799d71 | 3658 | |
9b471446 | 3659 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
a34bcfff AD |
3660 | gpie = IXGBE_GPIE_MSIX_MODE | IXGBE_GPIE_PBA_SUPPORT | |
3661 | IXGBE_GPIE_OCD; | |
3662 | gpie |= IXGBE_GPIE_EIAME; | |
9b471446 JB |
3663 | /* |
3664 | * use EIAM to auto-mask when MSI-X interrupt is asserted | |
3665 | * this saves a register write for every interrupt | |
3666 | */ | |
3667 | switch (hw->mac.type) { | |
3668 | case ixgbe_mac_82598EB: | |
3669 | IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE); | |
3670 | break; | |
9b471446 | 3671 | case ixgbe_mac_82599EB: |
b93a2226 DS |
3672 | case ixgbe_mac_X540: |
3673 | default: | |
9b471446 JB |
3674 | IXGBE_WRITE_REG(hw, IXGBE_EIAM_EX(0), 0xFFFFFFFF); |
3675 | IXGBE_WRITE_REG(hw, IXGBE_EIAM_EX(1), 0xFFFFFFFF); | |
3676 | break; | |
3677 | } | |
3678 | } else { | |
021230d4 AV |
3679 | /* legacy interrupts, use EIAM to auto-mask when reading EICR, |
3680 | * specifically only auto mask tx and rx interrupts */ | |
3681 | IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE); | |
3682 | } | |
9a799d71 | 3683 | |
a34bcfff AD |
3684 | /* XXX: to interrupt immediately for EICS writes, enable this */ |
3685 | /* gpie |= IXGBE_GPIE_EIMEN; */ | |
3686 | ||
3687 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { | |
3688 | gpie &= ~IXGBE_GPIE_VTMODE_MASK; | |
3689 | gpie |= IXGBE_GPIE_VTMODE_64; | |
119fc60a MC |
3690 | } |
3691 | ||
5fdd31f9 | 3692 | /* Enable Thermal over heat sensor interrupt */ |
f3df98ec DS |
3693 | if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) { |
3694 | switch (adapter->hw.mac.type) { | |
3695 | case ixgbe_mac_82599EB: | |
3696 | gpie |= IXGBE_SDP0_GPIEN; | |
3697 | break; | |
3698 | case ixgbe_mac_X540: | |
3699 | gpie |= IXGBE_EIMS_TS; | |
3700 | break; | |
3701 | default: | |
3702 | break; | |
3703 | } | |
3704 | } | |
5fdd31f9 | 3705 | |
a34bcfff AD |
3706 | /* Enable fan failure interrupt */ |
3707 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) | |
0befdb3e | 3708 | gpie |= IXGBE_SDP1_GPIEN; |
0befdb3e | 3709 | |
2698b208 | 3710 | if (hw->mac.type == ixgbe_mac_82599EB) { |
e8e26350 PW |
3711 | gpie |= IXGBE_SDP1_GPIEN; |
3712 | gpie |= IXGBE_SDP2_GPIEN; | |
2698b208 | 3713 | } |
a34bcfff AD |
3714 | |
3715 | IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); | |
3716 | } | |
3717 | ||
c7ccde0f | 3718 | static void ixgbe_up_complete(struct ixgbe_adapter *adapter) |
a34bcfff AD |
3719 | { |
3720 | struct ixgbe_hw *hw = &adapter->hw; | |
a34bcfff | 3721 | int err; |
a34bcfff AD |
3722 | u32 ctrl_ext; |
3723 | ||
3724 | ixgbe_get_hw_control(adapter); | |
3725 | ixgbe_setup_gpie(adapter); | |
e8e26350 | 3726 | |
9a799d71 AK |
3727 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) |
3728 | ixgbe_configure_msix(adapter); | |
3729 | else | |
3730 | ixgbe_configure_msi_and_legacy(adapter); | |
3731 | ||
c6ecf39a DS |
3732 | /* enable the optics for both mult-speed fiber and 82599 SFP+ fiber */ |
3733 | if (hw->mac.ops.enable_tx_laser && | |
3734 | ((hw->phy.multispeed_fiber) || | |
9f911707 | 3735 | ((hw->mac.ops.get_media_type(hw) == ixgbe_media_type_fiber) && |
c6ecf39a | 3736 | (hw->mac.type == ixgbe_mac_82599EB)))) |
61fac744 PW |
3737 | hw->mac.ops.enable_tx_laser(hw); |
3738 | ||
9a799d71 | 3739 | clear_bit(__IXGBE_DOWN, &adapter->state); |
021230d4 AV |
3740 | ixgbe_napi_enable_all(adapter); |
3741 | ||
73c4b7cd AD |
3742 | if (ixgbe_is_sfp(hw)) { |
3743 | ixgbe_sfp_link_config(adapter); | |
3744 | } else { | |
3745 | err = ixgbe_non_sfp_link_config(hw); | |
3746 | if (err) | |
3747 | e_err(probe, "link_config FAILED %d\n", err); | |
3748 | } | |
3749 | ||
021230d4 AV |
3750 | /* clear any pending interrupts, may auto mask */ |
3751 | IXGBE_READ_REG(hw, IXGBE_EICR); | |
6af3b9eb | 3752 | ixgbe_irq_enable(adapter, true, true); |
9a799d71 | 3753 | |
bf069c97 DS |
3754 | /* |
3755 | * If this adapter has a fan, check to see if we had a failure | |
3756 | * before we enabled the interrupt. | |
3757 | */ | |
3758 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) { | |
3759 | u32 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); | |
3760 | if (esdp & IXGBE_ESDP_SDP1) | |
396e799c | 3761 | e_crit(drv, "Fan has stopped, replace the adapter\n"); |
bf069c97 DS |
3762 | } |
3763 | ||
1da100bb | 3764 | /* enable transmits */ |
477de6ed | 3765 | netif_tx_start_all_queues(adapter->netdev); |
1da100bb | 3766 | |
9a799d71 AK |
3767 | /* bring the link up in the watchdog, this could race with our first |
3768 | * link up interrupt but shouldn't be a problem */ | |
cf8280ee JB |
3769 | adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; |
3770 | adapter->link_check_timeout = jiffies; | |
7086400d | 3771 | mod_timer(&adapter->service_timer, jiffies); |
c9205697 GR |
3772 | |
3773 | /* Set PF Reset Done bit so PF/VF Mail Ops can work */ | |
3774 | ctrl_ext = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT); | |
3775 | ctrl_ext |= IXGBE_CTRL_EXT_PFRSTD; | |
3776 | IXGBE_WRITE_REG(hw, IXGBE_CTRL_EXT, ctrl_ext); | |
9a799d71 AK |
3777 | } |
3778 | ||
d4f80882 AV |
3779 | void ixgbe_reinit_locked(struct ixgbe_adapter *adapter) |
3780 | { | |
3781 | WARN_ON(in_interrupt()); | |
7086400d AD |
3782 | /* put off any impending NetWatchDogTimeout */ |
3783 | adapter->netdev->trans_start = jiffies; | |
3784 | ||
d4f80882 | 3785 | while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state)) |
032b4325 | 3786 | usleep_range(1000, 2000); |
d4f80882 | 3787 | ixgbe_down(adapter); |
5809a1ae GR |
3788 | /* |
3789 | * If SR-IOV enabled then wait a bit before bringing the adapter | |
3790 | * back up to give the VFs time to respond to the reset. The | |
3791 | * two second wait is based upon the watchdog timer cycle in | |
3792 | * the VF driver. | |
3793 | */ | |
3794 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
3795 | msleep(2000); | |
d4f80882 AV |
3796 | ixgbe_up(adapter); |
3797 | clear_bit(__IXGBE_RESETTING, &adapter->state); | |
3798 | } | |
3799 | ||
c7ccde0f | 3800 | void ixgbe_up(struct ixgbe_adapter *adapter) |
9a799d71 AK |
3801 | { |
3802 | /* hardware has been reset, we need to reload some things */ | |
3803 | ixgbe_configure(adapter); | |
3804 | ||
c7ccde0f | 3805 | ixgbe_up_complete(adapter); |
9a799d71 AK |
3806 | } |
3807 | ||
3808 | void ixgbe_reset(struct ixgbe_adapter *adapter) | |
3809 | { | |
c44ade9e | 3810 | struct ixgbe_hw *hw = &adapter->hw; |
8ca783ab DS |
3811 | int err; |
3812 | ||
7086400d AD |
3813 | /* lock SFP init bit to prevent race conditions with the watchdog */ |
3814 | while (test_and_set_bit(__IXGBE_IN_SFP_INIT, &adapter->state)) | |
3815 | usleep_range(1000, 2000); | |
3816 | ||
3817 | /* clear all SFP and link config related flags while holding SFP_INIT */ | |
3818 | adapter->flags2 &= ~(IXGBE_FLAG2_SEARCH_FOR_SFP | | |
3819 | IXGBE_FLAG2_SFP_NEEDS_RESET); | |
3820 | adapter->flags &= ~IXGBE_FLAG_NEED_LINK_CONFIG; | |
3821 | ||
8ca783ab | 3822 | err = hw->mac.ops.init_hw(hw); |
da4dd0f7 PWJ |
3823 | switch (err) { |
3824 | case 0: | |
3825 | case IXGBE_ERR_SFP_NOT_PRESENT: | |
7086400d | 3826 | case IXGBE_ERR_SFP_NOT_SUPPORTED: |
da4dd0f7 PWJ |
3827 | break; |
3828 | case IXGBE_ERR_MASTER_REQUESTS_PENDING: | |
849c4542 | 3829 | e_dev_err("master disable timed out\n"); |
da4dd0f7 | 3830 | break; |
794caeb2 PWJ |
3831 | case IXGBE_ERR_EEPROM_VERSION: |
3832 | /* We are running on a pre-production device, log a warning */ | |
849c4542 | 3833 | e_dev_warn("This device is a pre-production adapter/LOM. " |
52f33af8 | 3834 | "Please be aware there may be issues associated with " |
849c4542 ET |
3835 | "your hardware. If you are experiencing problems " |
3836 | "please contact your Intel or hardware " | |
3837 | "representative who provided you with this " | |
3838 | "hardware.\n"); | |
794caeb2 | 3839 | break; |
da4dd0f7 | 3840 | default: |
849c4542 | 3841 | e_dev_err("Hardware Error: %d\n", err); |
da4dd0f7 | 3842 | } |
9a799d71 | 3843 | |
7086400d AD |
3844 | clear_bit(__IXGBE_IN_SFP_INIT, &adapter->state); |
3845 | ||
9a799d71 | 3846 | /* reprogram the RAR[0] in case user changed it. */ |
1cdd1ec8 GR |
3847 | hw->mac.ops.set_rar(hw, 0, hw->mac.addr, adapter->num_vfs, |
3848 | IXGBE_RAH_AV); | |
9a799d71 AK |
3849 | } |
3850 | ||
9a799d71 AK |
3851 | /** |
3852 | * ixgbe_clean_rx_ring - Free Rx Buffers per Queue | |
9a799d71 AK |
3853 | * @rx_ring: ring to free buffers from |
3854 | **/ | |
b6ec895e | 3855 | static void ixgbe_clean_rx_ring(struct ixgbe_ring *rx_ring) |
9a799d71 | 3856 | { |
b6ec895e | 3857 | struct device *dev = rx_ring->dev; |
9a799d71 | 3858 | unsigned long size; |
b6ec895e | 3859 | u16 i; |
9a799d71 | 3860 | |
84418e3b AD |
3861 | /* ring already cleared, nothing to do */ |
3862 | if (!rx_ring->rx_buffer_info) | |
3863 | return; | |
9a799d71 | 3864 | |
84418e3b | 3865 | /* Free all the Rx ring sk_buffs */ |
9a799d71 AK |
3866 | for (i = 0; i < rx_ring->count; i++) { |
3867 | struct ixgbe_rx_buffer *rx_buffer_info; | |
3868 | ||
3869 | rx_buffer_info = &rx_ring->rx_buffer_info[i]; | |
3870 | if (rx_buffer_info->dma) { | |
b6ec895e | 3871 | dma_unmap_single(rx_ring->dev, rx_buffer_info->dma, |
e8e9f696 | 3872 | rx_ring->rx_buf_len, |
1b507730 | 3873 | DMA_FROM_DEVICE); |
9a799d71 AK |
3874 | rx_buffer_info->dma = 0; |
3875 | } | |
3876 | if (rx_buffer_info->skb) { | |
f8212f97 | 3877 | struct sk_buff *skb = rx_buffer_info->skb; |
9a799d71 | 3878 | rx_buffer_info->skb = NULL; |
f8212f97 AD |
3879 | do { |
3880 | struct sk_buff *this = skb; | |
e8171aaa | 3881 | if (IXGBE_RSC_CB(this)->delay_unmap) { |
b6ec895e | 3882 | dma_unmap_single(dev, |
1b507730 | 3883 | IXGBE_RSC_CB(this)->dma, |
e8e9f696 | 3884 | rx_ring->rx_buf_len, |
1b507730 | 3885 | DMA_FROM_DEVICE); |
fd3686a8 | 3886 | IXGBE_RSC_CB(this)->dma = 0; |
e8171aaa | 3887 | IXGBE_RSC_CB(skb)->delay_unmap = false; |
fd3686a8 | 3888 | } |
f8212f97 AD |
3889 | skb = skb->prev; |
3890 | dev_kfree_skb(this); | |
3891 | } while (skb); | |
9a799d71 AK |
3892 | } |
3893 | if (!rx_buffer_info->page) | |
3894 | continue; | |
4f57ca6e | 3895 | if (rx_buffer_info->page_dma) { |
b6ec895e | 3896 | dma_unmap_page(dev, rx_buffer_info->page_dma, |
1b507730 | 3897 | PAGE_SIZE / 2, DMA_FROM_DEVICE); |
4f57ca6e JB |
3898 | rx_buffer_info->page_dma = 0; |
3899 | } | |
9a799d71 AK |
3900 | put_page(rx_buffer_info->page); |
3901 | rx_buffer_info->page = NULL; | |
762f4c57 | 3902 | rx_buffer_info->page_offset = 0; |
9a799d71 AK |
3903 | } |
3904 | ||
3905 | size = sizeof(struct ixgbe_rx_buffer) * rx_ring->count; | |
3906 | memset(rx_ring->rx_buffer_info, 0, size); | |
3907 | ||
3908 | /* Zero out the descriptor ring */ | |
3909 | memset(rx_ring->desc, 0, rx_ring->size); | |
3910 | ||
3911 | rx_ring->next_to_clean = 0; | |
3912 | rx_ring->next_to_use = 0; | |
9a799d71 AK |
3913 | } |
3914 | ||
3915 | /** | |
3916 | * ixgbe_clean_tx_ring - Free Tx Buffers | |
9a799d71 AK |
3917 | * @tx_ring: ring to be cleaned |
3918 | **/ | |
b6ec895e | 3919 | static void ixgbe_clean_tx_ring(struct ixgbe_ring *tx_ring) |
9a799d71 AK |
3920 | { |
3921 | struct ixgbe_tx_buffer *tx_buffer_info; | |
3922 | unsigned long size; | |
b6ec895e | 3923 | u16 i; |
9a799d71 | 3924 | |
84418e3b AD |
3925 | /* ring already cleared, nothing to do */ |
3926 | if (!tx_ring->tx_buffer_info) | |
3927 | return; | |
9a799d71 | 3928 | |
84418e3b | 3929 | /* Free all the Tx ring sk_buffs */ |
9a799d71 AK |
3930 | for (i = 0; i < tx_ring->count; i++) { |
3931 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; | |
b6ec895e | 3932 | ixgbe_unmap_and_free_tx_resource(tx_ring, tx_buffer_info); |
9a799d71 AK |
3933 | } |
3934 | ||
3935 | size = sizeof(struct ixgbe_tx_buffer) * tx_ring->count; | |
3936 | memset(tx_ring->tx_buffer_info, 0, size); | |
3937 | ||
3938 | /* Zero out the descriptor ring */ | |
3939 | memset(tx_ring->desc, 0, tx_ring->size); | |
3940 | ||
3941 | tx_ring->next_to_use = 0; | |
3942 | tx_ring->next_to_clean = 0; | |
9a799d71 AK |
3943 | } |
3944 | ||
3945 | /** | |
021230d4 | 3946 | * ixgbe_clean_all_rx_rings - Free Rx Buffers for all queues |
9a799d71 AK |
3947 | * @adapter: board private structure |
3948 | **/ | |
021230d4 | 3949 | static void ixgbe_clean_all_rx_rings(struct ixgbe_adapter *adapter) |
9a799d71 AK |
3950 | { |
3951 | int i; | |
3952 | ||
021230d4 | 3953 | for (i = 0; i < adapter->num_rx_queues; i++) |
b6ec895e | 3954 | ixgbe_clean_rx_ring(adapter->rx_ring[i]); |
9a799d71 AK |
3955 | } |
3956 | ||
3957 | /** | |
021230d4 | 3958 | * ixgbe_clean_all_tx_rings - Free Tx Buffers for all queues |
9a799d71 AK |
3959 | * @adapter: board private structure |
3960 | **/ | |
021230d4 | 3961 | static void ixgbe_clean_all_tx_rings(struct ixgbe_adapter *adapter) |
9a799d71 AK |
3962 | { |
3963 | int i; | |
3964 | ||
021230d4 | 3965 | for (i = 0; i < adapter->num_tx_queues; i++) |
b6ec895e | 3966 | ixgbe_clean_tx_ring(adapter->tx_ring[i]); |
9a799d71 AK |
3967 | } |
3968 | ||
e4911d57 AD |
3969 | static void ixgbe_fdir_filter_exit(struct ixgbe_adapter *adapter) |
3970 | { | |
3971 | struct hlist_node *node, *node2; | |
3972 | struct ixgbe_fdir_filter *filter; | |
3973 | ||
3974 | spin_lock(&adapter->fdir_perfect_lock); | |
3975 | ||
3976 | hlist_for_each_entry_safe(filter, node, node2, | |
3977 | &adapter->fdir_filter_list, fdir_node) { | |
3978 | hlist_del(&filter->fdir_node); | |
3979 | kfree(filter); | |
3980 | } | |
3981 | adapter->fdir_filter_count = 0; | |
3982 | ||
3983 | spin_unlock(&adapter->fdir_perfect_lock); | |
3984 | } | |
3985 | ||
9a799d71 AK |
3986 | void ixgbe_down(struct ixgbe_adapter *adapter) |
3987 | { | |
3988 | struct net_device *netdev = adapter->netdev; | |
7f821875 | 3989 | struct ixgbe_hw *hw = &adapter->hw; |
9a799d71 | 3990 | u32 rxctrl; |
bf29ee6c | 3991 | int i; |
9a799d71 AK |
3992 | |
3993 | /* signal that we are down to the interrupt handler */ | |
3994 | set_bit(__IXGBE_DOWN, &adapter->state); | |
3995 | ||
3996 | /* disable receives */ | |
7f821875 JB |
3997 | rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL); |
3998 | IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl & ~IXGBE_RXCTRL_RXEN); | |
9a799d71 | 3999 | |
2d39d576 YZ |
4000 | /* disable all enabled rx queues */ |
4001 | for (i = 0; i < adapter->num_rx_queues; i++) | |
4002 | /* this call also flushes the previous write */ | |
4003 | ixgbe_disable_rx_queue(adapter, adapter->rx_ring[i]); | |
4004 | ||
032b4325 | 4005 | usleep_range(10000, 20000); |
9a799d71 | 4006 | |
7f821875 JB |
4007 | netif_tx_stop_all_queues(netdev); |
4008 | ||
7086400d | 4009 | /* call carrier off first to avoid false dev_watchdog timeouts */ |
c0dfb90e JF |
4010 | netif_carrier_off(netdev); |
4011 | netif_tx_disable(netdev); | |
4012 | ||
4013 | ixgbe_irq_disable(adapter); | |
4014 | ||
4015 | ixgbe_napi_disable_all(adapter); | |
4016 | ||
d034acf1 AD |
4017 | adapter->flags2 &= ~(IXGBE_FLAG2_FDIR_REQUIRES_REINIT | |
4018 | IXGBE_FLAG2_RESET_REQUESTED); | |
7086400d AD |
4019 | adapter->flags &= ~IXGBE_FLAG_NEED_LINK_UPDATE; |
4020 | ||
4021 | del_timer_sync(&adapter->service_timer); | |
4022 | ||
34cecbbf | 4023 | if (adapter->num_vfs) { |
8e34d1aa AD |
4024 | /* Clear EITR Select mapping */ |
4025 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, 0); | |
34cecbbf AD |
4026 | |
4027 | /* Mark all the VFs as inactive */ | |
4028 | for (i = 0 ; i < adapter->num_vfs; i++) | |
3db1cd5c | 4029 | adapter->vfinfo[i].clear_to_send = false; |
34cecbbf | 4030 | |
34cecbbf AD |
4031 | /* ping all the active vfs to let them know we are going down */ |
4032 | ixgbe_ping_all_vfs(adapter); | |
4033 | ||
4034 | /* Disable all VFTE/VFRE TX/RX */ | |
4035 | ixgbe_disable_tx_rx(adapter); | |
b25ebfd2 PW |
4036 | } |
4037 | ||
7f821875 JB |
4038 | /* disable transmits in the hardware now that interrupts are off */ |
4039 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
bf29ee6c | 4040 | u8 reg_idx = adapter->tx_ring[i]->reg_idx; |
34cecbbf | 4041 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), IXGBE_TXDCTL_SWFLSH); |
7f821875 | 4042 | } |
34cecbbf AD |
4043 | |
4044 | /* Disable the Tx DMA engine on 82599 and X540 */ | |
bd508178 AD |
4045 | switch (hw->mac.type) { |
4046 | case ixgbe_mac_82599EB: | |
b93a2226 | 4047 | case ixgbe_mac_X540: |
88512539 | 4048 | IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL, |
e8e9f696 JP |
4049 | (IXGBE_READ_REG(hw, IXGBE_DMATXCTL) & |
4050 | ~IXGBE_DMATXCTL_TE)); | |
bd508178 AD |
4051 | break; |
4052 | default: | |
4053 | break; | |
4054 | } | |
7f821875 | 4055 | |
6f4a0e45 PL |
4056 | if (!pci_channel_offline(adapter->pdev)) |
4057 | ixgbe_reset(adapter); | |
c6ecf39a DS |
4058 | |
4059 | /* power down the optics for multispeed fiber and 82599 SFP+ fiber */ | |
4060 | if (hw->mac.ops.disable_tx_laser && | |
4061 | ((hw->phy.multispeed_fiber) || | |
9f911707 | 4062 | ((hw->mac.ops.get_media_type(hw) == ixgbe_media_type_fiber) && |
c6ecf39a DS |
4063 | (hw->mac.type == ixgbe_mac_82599EB)))) |
4064 | hw->mac.ops.disable_tx_laser(hw); | |
4065 | ||
9a799d71 AK |
4066 | ixgbe_clean_all_tx_rings(adapter); |
4067 | ixgbe_clean_all_rx_rings(adapter); | |
4068 | ||
5dd2d332 | 4069 | #ifdef CONFIG_IXGBE_DCA |
96b0e0f6 | 4070 | /* since we reset the hardware DCA settings were cleared */ |
e35ec126 | 4071 | ixgbe_setup_dca(adapter); |
96b0e0f6 | 4072 | #endif |
9a799d71 AK |
4073 | } |
4074 | ||
9a799d71 | 4075 | /** |
021230d4 AV |
4076 | * ixgbe_poll - NAPI Rx polling callback |
4077 | * @napi: structure for representing this polling device | |
4078 | * @budget: how many packets driver is allowed to clean | |
4079 | * | |
4080 | * This function is used for legacy and MSI, NAPI mode | |
9a799d71 | 4081 | **/ |
021230d4 | 4082 | static int ixgbe_poll(struct napi_struct *napi, int budget) |
9a799d71 | 4083 | { |
9a1a69ad | 4084 | struct ixgbe_q_vector *q_vector = |
e8e9f696 | 4085 | container_of(napi, struct ixgbe_q_vector, napi); |
021230d4 | 4086 | struct ixgbe_adapter *adapter = q_vector->adapter; |
4ff7fb12 AD |
4087 | struct ixgbe_ring *ring; |
4088 | int per_ring_budget; | |
4089 | bool clean_complete = true; | |
9a799d71 | 4090 | |
5dd2d332 | 4091 | #ifdef CONFIG_IXGBE_DCA |
33cf09c9 AD |
4092 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) |
4093 | ixgbe_update_dca(q_vector); | |
bd0362dd JC |
4094 | #endif |
4095 | ||
4ff7fb12 AD |
4096 | for (ring = q_vector->tx.ring; ring != NULL; ring = ring->next) |
4097 | clean_complete &= !!ixgbe_clean_tx_irq(q_vector, ring); | |
9a799d71 | 4098 | |
4ff7fb12 AD |
4099 | /* attempt to distribute budget to each queue fairly, but don't allow |
4100 | * the budget to go below 1 because we'll exit polling */ | |
4101 | if (q_vector->rx.count > 1) | |
4102 | per_ring_budget = max(budget/q_vector->rx.count, 1); | |
4103 | else | |
4104 | per_ring_budget = budget; | |
d2c7ddd6 | 4105 | |
4ff7fb12 AD |
4106 | for (ring = q_vector->rx.ring; ring != NULL; ring = ring->next) |
4107 | clean_complete &= ixgbe_clean_rx_irq(q_vector, ring, | |
4108 | per_ring_budget); | |
4109 | ||
4110 | /* If all work not completed, return budget and keep polling */ | |
4111 | if (!clean_complete) | |
4112 | return budget; | |
4113 | ||
4114 | /* all work done, exit the polling mode */ | |
4115 | napi_complete(napi); | |
4116 | if (adapter->rx_itr_setting & 1) | |
4117 | ixgbe_set_itr(q_vector); | |
4118 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) | |
4119 | ixgbe_irq_enable_queues(adapter, ((u64)1 << q_vector->v_idx)); | |
4120 | ||
4121 | return 0; | |
9a799d71 AK |
4122 | } |
4123 | ||
4124 | /** | |
4125 | * ixgbe_tx_timeout - Respond to a Tx Hang | |
4126 | * @netdev: network interface device structure | |
4127 | **/ | |
4128 | static void ixgbe_tx_timeout(struct net_device *netdev) | |
4129 | { | |
4130 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
4131 | ||
4132 | /* Do the reset outside of interrupt context */ | |
c83c6cbd | 4133 | ixgbe_tx_timeout_reset(adapter); |
9a799d71 AK |
4134 | } |
4135 | ||
4df10466 JB |
4136 | /** |
4137 | * ixgbe_set_rss_queues: Allocate queues for RSS | |
4138 | * @adapter: board private structure to initialize | |
4139 | * | |
4140 | * This is our "base" multiqueue mode. RSS (Receive Side Scaling) will try | |
4141 | * to allocate one Rx queue per CPU, and if available, one Tx queue per CPU. | |
4142 | * | |
4143 | **/ | |
bc97114d PWJ |
4144 | static inline bool ixgbe_set_rss_queues(struct ixgbe_adapter *adapter) |
4145 | { | |
4146 | bool ret = false; | |
0cefafad | 4147 | struct ixgbe_ring_feature *f = &adapter->ring_feature[RING_F_RSS]; |
bc97114d PWJ |
4148 | |
4149 | if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) { | |
0cefafad JB |
4150 | f->mask = 0xF; |
4151 | adapter->num_rx_queues = f->indices; | |
4152 | adapter->num_tx_queues = f->indices; | |
bc97114d PWJ |
4153 | ret = true; |
4154 | } else { | |
bc97114d | 4155 | ret = false; |
b9804972 JB |
4156 | } |
4157 | ||
bc97114d PWJ |
4158 | return ret; |
4159 | } | |
4160 | ||
c4cf55e5 PWJ |
4161 | /** |
4162 | * ixgbe_set_fdir_queues: Allocate queues for Flow Director | |
4163 | * @adapter: board private structure to initialize | |
4164 | * | |
4165 | * Flow Director is an advanced Rx filter, attempting to get Rx flows back | |
4166 | * to the original CPU that initiated the Tx session. This runs in addition | |
4167 | * to RSS, so if a packet doesn't match an FDIR filter, we can still spread the | |
4168 | * Rx load across CPUs using RSS. | |
4169 | * | |
4170 | **/ | |
e8e9f696 | 4171 | static inline bool ixgbe_set_fdir_queues(struct ixgbe_adapter *adapter) |
c4cf55e5 PWJ |
4172 | { |
4173 | bool ret = false; | |
4174 | struct ixgbe_ring_feature *f_fdir = &adapter->ring_feature[RING_F_FDIR]; | |
4175 | ||
4176 | f_fdir->indices = min((int)num_online_cpus(), f_fdir->indices); | |
4177 | f_fdir->mask = 0; | |
4178 | ||
4179 | /* Flow Director must have RSS enabled */ | |
03ecf91a AD |
4180 | if ((adapter->flags & IXGBE_FLAG_RSS_ENABLED) && |
4181 | (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE)) { | |
c4cf55e5 PWJ |
4182 | adapter->num_tx_queues = f_fdir->indices; |
4183 | adapter->num_rx_queues = f_fdir->indices; | |
4184 | ret = true; | |
4185 | } else { | |
4186 | adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE; | |
c4cf55e5 PWJ |
4187 | } |
4188 | return ret; | |
4189 | } | |
4190 | ||
0331a832 YZ |
4191 | #ifdef IXGBE_FCOE |
4192 | /** | |
4193 | * ixgbe_set_fcoe_queues: Allocate queues for Fiber Channel over Ethernet (FCoE) | |
4194 | * @adapter: board private structure to initialize | |
4195 | * | |
4196 | * FCoE RX FCRETA can use up to 8 rx queues for up to 8 different exchanges. | |
4197 | * The ring feature mask is not used as a mask for FCoE, as it can take any 8 | |
4198 | * rx queues out of the max number of rx queues, instead, it is used as the | |
4199 | * index of the first rx queue used by FCoE. | |
4200 | * | |
4201 | **/ | |
4202 | static inline bool ixgbe_set_fcoe_queues(struct ixgbe_adapter *adapter) | |
4203 | { | |
0331a832 YZ |
4204 | struct ixgbe_ring_feature *f = &adapter->ring_feature[RING_F_FCOE]; |
4205 | ||
e5b64635 JF |
4206 | if (!(adapter->flags & IXGBE_FLAG_FCOE_ENABLED)) |
4207 | return false; | |
4208 | ||
e901acd6 | 4209 | f->indices = min((int)num_online_cpus(), f->indices); |
e5b64635 | 4210 | |
e901acd6 JF |
4211 | adapter->num_rx_queues = 1; |
4212 | adapter->num_tx_queues = 1; | |
e5b64635 | 4213 | |
e901acd6 JF |
4214 | if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) { |
4215 | e_info(probe, "FCoE enabled with RSS\n"); | |
03ecf91a | 4216 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) |
e901acd6 JF |
4217 | ixgbe_set_fdir_queues(adapter); |
4218 | else | |
4219 | ixgbe_set_rss_queues(adapter); | |
e5b64635 | 4220 | } |
03ecf91a | 4221 | |
e901acd6 JF |
4222 | /* adding FCoE rx rings to the end */ |
4223 | f->mask = adapter->num_rx_queues; | |
4224 | adapter->num_rx_queues += f->indices; | |
4225 | adapter->num_tx_queues += f->indices; | |
0331a832 | 4226 | |
e5b64635 JF |
4227 | return true; |
4228 | } | |
4229 | #endif /* IXGBE_FCOE */ | |
4230 | ||
e901acd6 JF |
4231 | /* Artificial max queue cap per traffic class in DCB mode */ |
4232 | #define DCB_QUEUE_CAP 8 | |
4233 | ||
e5b64635 JF |
4234 | #ifdef CONFIG_IXGBE_DCB |
4235 | static inline bool ixgbe_set_dcb_queues(struct ixgbe_adapter *adapter) | |
4236 | { | |
e901acd6 JF |
4237 | int per_tc_q, q, i, offset = 0; |
4238 | struct net_device *dev = adapter->netdev; | |
4239 | int tcs = netdev_get_num_tc(dev); | |
e5b64635 | 4240 | |
e901acd6 JF |
4241 | if (!tcs) |
4242 | return false; | |
e5b64635 | 4243 | |
e901acd6 JF |
4244 | /* Map queue offset and counts onto allocated tx queues */ |
4245 | per_tc_q = min(dev->num_tx_queues / tcs, (unsigned int)DCB_QUEUE_CAP); | |
4246 | q = min((int)num_online_cpus(), per_tc_q); | |
8b1c0b24 | 4247 | |
8b1c0b24 | 4248 | for (i = 0; i < tcs; i++) { |
e901acd6 JF |
4249 | netdev_set_tc_queue(dev, i, q, offset); |
4250 | offset += q; | |
0331a832 YZ |
4251 | } |
4252 | ||
e901acd6 JF |
4253 | adapter->num_tx_queues = q * tcs; |
4254 | adapter->num_rx_queues = q * tcs; | |
e5b64635 JF |
4255 | |
4256 | #ifdef IXGBE_FCOE | |
e901acd6 JF |
4257 | /* FCoE enabled queues require special configuration indexed |
4258 | * by feature specific indices and mask. Here we map FCoE | |
4259 | * indices onto the DCB queue pairs allowing FCoE to own | |
4260 | * configuration later. | |
e5b64635 | 4261 | */ |
e901acd6 JF |
4262 | if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) { |
4263 | int tc; | |
4264 | struct ixgbe_ring_feature *f = | |
4265 | &adapter->ring_feature[RING_F_FCOE]; | |
4266 | ||
4267 | tc = netdev_get_prio_tc_map(dev, adapter->fcoe.up); | |
4268 | f->indices = dev->tc_to_txq[tc].count; | |
4269 | f->mask = dev->tc_to_txq[tc].offset; | |
4270 | } | |
e5b64635 JF |
4271 | #endif |
4272 | ||
e901acd6 | 4273 | return true; |
0331a832 | 4274 | } |
e5b64635 | 4275 | #endif |
0331a832 | 4276 | |
1cdd1ec8 GR |
4277 | /** |
4278 | * ixgbe_set_sriov_queues: Allocate queues for IOV use | |
4279 | * @adapter: board private structure to initialize | |
4280 | * | |
4281 | * IOV doesn't actually use anything, so just NAK the | |
4282 | * request for now and let the other queue routines | |
4283 | * figure out what to do. | |
4284 | */ | |
4285 | static inline bool ixgbe_set_sriov_queues(struct ixgbe_adapter *adapter) | |
4286 | { | |
4287 | return false; | |
4288 | } | |
4289 | ||
4df10466 | 4290 | /* |
25985edc | 4291 | * ixgbe_set_num_queues: Allocate queues for device, feature dependent |
4df10466 JB |
4292 | * @adapter: board private structure to initialize |
4293 | * | |
4294 | * This is the top level queue allocation routine. The order here is very | |
4295 | * important, starting with the "most" number of features turned on at once, | |
4296 | * and ending with the smallest set of features. This way large combinations | |
4297 | * can be allocated if they're turned on, and smaller combinations are the | |
4298 | * fallthrough conditions. | |
4299 | * | |
4300 | **/ | |
847f53ff | 4301 | static int ixgbe_set_num_queues(struct ixgbe_adapter *adapter) |
bc97114d | 4302 | { |
1cdd1ec8 GR |
4303 | /* Start with base case */ |
4304 | adapter->num_rx_queues = 1; | |
4305 | adapter->num_tx_queues = 1; | |
4306 | adapter->num_rx_pools = adapter->num_rx_queues; | |
4307 | adapter->num_rx_queues_per_pool = 1; | |
4308 | ||
4309 | if (ixgbe_set_sriov_queues(adapter)) | |
847f53ff | 4310 | goto done; |
1cdd1ec8 | 4311 | |
bc97114d PWJ |
4312 | #ifdef CONFIG_IXGBE_DCB |
4313 | if (ixgbe_set_dcb_queues(adapter)) | |
af22ab1b | 4314 | goto done; |
bc97114d PWJ |
4315 | |
4316 | #endif | |
e5b64635 JF |
4317 | #ifdef IXGBE_FCOE |
4318 | if (ixgbe_set_fcoe_queues(adapter)) | |
4319 | goto done; | |
4320 | ||
4321 | #endif /* IXGBE_FCOE */ | |
c4cf55e5 PWJ |
4322 | if (ixgbe_set_fdir_queues(adapter)) |
4323 | goto done; | |
4324 | ||
bc97114d | 4325 | if (ixgbe_set_rss_queues(adapter)) |
af22ab1b WF |
4326 | goto done; |
4327 | ||
4328 | /* fallback to base case */ | |
4329 | adapter->num_rx_queues = 1; | |
4330 | adapter->num_tx_queues = 1; | |
4331 | ||
4332 | done: | |
9d837ea2 YZ |
4333 | if ((adapter->netdev->reg_state == NETREG_UNREGISTERED) || |
4334 | (adapter->netdev->reg_state == NETREG_UNREGISTERING)) | |
4335 | return 0; | |
4336 | ||
847f53ff | 4337 | /* Notify the stack of the (possibly) reduced queue counts. */ |
f0796d5c | 4338 | netif_set_real_num_tx_queues(adapter->netdev, adapter->num_tx_queues); |
847f53ff BH |
4339 | return netif_set_real_num_rx_queues(adapter->netdev, |
4340 | adapter->num_rx_queues); | |
b9804972 JB |
4341 | } |
4342 | ||
021230d4 | 4343 | static void ixgbe_acquire_msix_vectors(struct ixgbe_adapter *adapter, |
e8e9f696 | 4344 | int vectors) |
021230d4 AV |
4345 | { |
4346 | int err, vector_threshold; | |
4347 | ||
4348 | /* We'll want at least 3 (vector_threshold): | |
4349 | * 1) TxQ[0] Cleanup | |
4350 | * 2) RxQ[0] Cleanup | |
4351 | * 3) Other (Link Status Change, etc.) | |
4352 | * 4) TCP Timer (optional) | |
4353 | */ | |
4354 | vector_threshold = MIN_MSIX_COUNT; | |
4355 | ||
4356 | /* The more we get, the more we will assign to Tx/Rx Cleanup | |
4357 | * for the separate queues...where Rx Cleanup >= Tx Cleanup. | |
4358 | * Right now, we simply care about how many we'll get; we'll | |
4359 | * set them up later while requesting irq's. | |
4360 | */ | |
4361 | while (vectors >= vector_threshold) { | |
4362 | err = pci_enable_msix(adapter->pdev, adapter->msix_entries, | |
e8e9f696 | 4363 | vectors); |
021230d4 AV |
4364 | if (!err) /* Success in acquiring all requested vectors. */ |
4365 | break; | |
4366 | else if (err < 0) | |
4367 | vectors = 0; /* Nasty failure, quit now */ | |
4368 | else /* err == number of vectors we should try again with */ | |
4369 | vectors = err; | |
4370 | } | |
4371 | ||
4372 | if (vectors < vector_threshold) { | |
4373 | /* Can't allocate enough MSI-X interrupts? Oh well. | |
4374 | * This just means we'll go with either a single MSI | |
4375 | * vector or fall back to legacy interrupts. | |
4376 | */ | |
849c4542 ET |
4377 | netif_printk(adapter, hw, KERN_DEBUG, adapter->netdev, |
4378 | "Unable to allocate MSI-X interrupts\n"); | |
021230d4 AV |
4379 | adapter->flags &= ~IXGBE_FLAG_MSIX_ENABLED; |
4380 | kfree(adapter->msix_entries); | |
4381 | adapter->msix_entries = NULL; | |
021230d4 AV |
4382 | } else { |
4383 | adapter->flags |= IXGBE_FLAG_MSIX_ENABLED; /* Woot! */ | |
eb7f139c PWJ |
4384 | /* |
4385 | * Adjust for only the vectors we'll use, which is minimum | |
4386 | * of max_msix_q_vectors + NON_Q_VECTORS, or the number of | |
4387 | * vectors we were allocated. | |
4388 | */ | |
4389 | adapter->num_msix_vectors = min(vectors, | |
e8e9f696 | 4390 | adapter->max_msix_q_vectors + NON_Q_VECTORS); |
021230d4 AV |
4391 | } |
4392 | } | |
4393 | ||
021230d4 | 4394 | /** |
bc97114d | 4395 | * ixgbe_cache_ring_rss - Descriptor ring to register mapping for RSS |
021230d4 AV |
4396 | * @adapter: board private structure to initialize |
4397 | * | |
bc97114d PWJ |
4398 | * Cache the descriptor ring offsets for RSS to the assigned rings. |
4399 | * | |
021230d4 | 4400 | **/ |
bc97114d | 4401 | static inline bool ixgbe_cache_ring_rss(struct ixgbe_adapter *adapter) |
021230d4 | 4402 | { |
bc97114d | 4403 | int i; |
bc97114d | 4404 | |
9d6b758f AD |
4405 | if (!(adapter->flags & IXGBE_FLAG_RSS_ENABLED)) |
4406 | return false; | |
bc97114d | 4407 | |
9d6b758f AD |
4408 | for (i = 0; i < adapter->num_rx_queues; i++) |
4409 | adapter->rx_ring[i]->reg_idx = i; | |
4410 | for (i = 0; i < adapter->num_tx_queues; i++) | |
4411 | adapter->tx_ring[i]->reg_idx = i; | |
4412 | ||
4413 | return true; | |
bc97114d PWJ |
4414 | } |
4415 | ||
4416 | #ifdef CONFIG_IXGBE_DCB | |
e5b64635 JF |
4417 | |
4418 | /* ixgbe_get_first_reg_idx - Return first register index associated with ring */ | |
b32c8dcc JF |
4419 | static void ixgbe_get_first_reg_idx(struct ixgbe_adapter *adapter, u8 tc, |
4420 | unsigned int *tx, unsigned int *rx) | |
e5b64635 JF |
4421 | { |
4422 | struct net_device *dev = adapter->netdev; | |
4423 | struct ixgbe_hw *hw = &adapter->hw; | |
4424 | u8 num_tcs = netdev_get_num_tc(dev); | |
4425 | ||
4426 | *tx = 0; | |
4427 | *rx = 0; | |
4428 | ||
4429 | switch (hw->mac.type) { | |
4430 | case ixgbe_mac_82598EB: | |
aba70d5e JF |
4431 | *tx = tc << 2; |
4432 | *rx = tc << 3; | |
e5b64635 JF |
4433 | break; |
4434 | case ixgbe_mac_82599EB: | |
4435 | case ixgbe_mac_X540: | |
4fa2e0e1 | 4436 | if (num_tcs > 4) { |
e5b64635 JF |
4437 | if (tc < 3) { |
4438 | *tx = tc << 5; | |
4439 | *rx = tc << 4; | |
4440 | } else if (tc < 5) { | |
4441 | *tx = ((tc + 2) << 4); | |
4442 | *rx = tc << 4; | |
4443 | } else if (tc < num_tcs) { | |
4444 | *tx = ((tc + 8) << 3); | |
4445 | *rx = tc << 4; | |
4446 | } | |
4fa2e0e1 | 4447 | } else { |
e5b64635 JF |
4448 | *rx = tc << 5; |
4449 | switch (tc) { | |
4450 | case 0: | |
4451 | *tx = 0; | |
4452 | break; | |
4453 | case 1: | |
4454 | *tx = 64; | |
4455 | break; | |
4456 | case 2: | |
4457 | *tx = 96; | |
4458 | break; | |
4459 | case 3: | |
4460 | *tx = 112; | |
4461 | break; | |
4462 | default: | |
4463 | break; | |
4464 | } | |
4465 | } | |
4466 | break; | |
4467 | default: | |
4468 | break; | |
4469 | } | |
4470 | } | |
4471 | ||
bc97114d PWJ |
4472 | /** |
4473 | * ixgbe_cache_ring_dcb - Descriptor ring to register mapping for DCB | |
4474 | * @adapter: board private structure to initialize | |
4475 | * | |
4476 | * Cache the descriptor ring offsets for DCB to the assigned rings. | |
4477 | * | |
4478 | **/ | |
4479 | static inline bool ixgbe_cache_ring_dcb(struct ixgbe_adapter *adapter) | |
4480 | { | |
e5b64635 JF |
4481 | struct net_device *dev = adapter->netdev; |
4482 | int i, j, k; | |
4483 | u8 num_tcs = netdev_get_num_tc(dev); | |
bc97114d | 4484 | |
8b1c0b24 | 4485 | if (!num_tcs) |
bd508178 | 4486 | return false; |
f92ef202 | 4487 | |
e5b64635 JF |
4488 | for (i = 0, k = 0; i < num_tcs; i++) { |
4489 | unsigned int tx_s, rx_s; | |
4490 | u16 count = dev->tc_to_txq[i].count; | |
4491 | ||
4492 | ixgbe_get_first_reg_idx(adapter, i, &tx_s, &rx_s); | |
4493 | for (j = 0; j < count; j++, k++) { | |
4494 | adapter->tx_ring[k]->reg_idx = tx_s + j; | |
4495 | adapter->rx_ring[k]->reg_idx = rx_s + j; | |
4496 | adapter->tx_ring[k]->dcb_tc = i; | |
4497 | adapter->rx_ring[k]->dcb_tc = i; | |
021230d4 | 4498 | } |
021230d4 | 4499 | } |
e5b64635 JF |
4500 | |
4501 | return true; | |
bc97114d PWJ |
4502 | } |
4503 | #endif | |
4504 | ||
c4cf55e5 PWJ |
4505 | /** |
4506 | * ixgbe_cache_ring_fdir - Descriptor ring to register mapping for Flow Director | |
4507 | * @adapter: board private structure to initialize | |
4508 | * | |
4509 | * Cache the descriptor ring offsets for Flow Director to the assigned rings. | |
4510 | * | |
4511 | **/ | |
e8e9f696 | 4512 | static inline bool ixgbe_cache_ring_fdir(struct ixgbe_adapter *adapter) |
c4cf55e5 PWJ |
4513 | { |
4514 | int i; | |
4515 | bool ret = false; | |
4516 | ||
03ecf91a AD |
4517 | if ((adapter->flags & IXGBE_FLAG_RSS_ENABLED) && |
4518 | (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE)) { | |
c4cf55e5 | 4519 | for (i = 0; i < adapter->num_rx_queues; i++) |
4a0b9ca0 | 4520 | adapter->rx_ring[i]->reg_idx = i; |
c4cf55e5 | 4521 | for (i = 0; i < adapter->num_tx_queues; i++) |
4a0b9ca0 | 4522 | adapter->tx_ring[i]->reg_idx = i; |
c4cf55e5 PWJ |
4523 | ret = true; |
4524 | } | |
4525 | ||
4526 | return ret; | |
4527 | } | |
4528 | ||
0331a832 YZ |
4529 | #ifdef IXGBE_FCOE |
4530 | /** | |
4531 | * ixgbe_cache_ring_fcoe - Descriptor ring to register mapping for the FCoE | |
4532 | * @adapter: board private structure to initialize | |
4533 | * | |
4534 | * Cache the descriptor ring offsets for FCoE mode to the assigned rings. | |
4535 | * | |
4536 | */ | |
4537 | static inline bool ixgbe_cache_ring_fcoe(struct ixgbe_adapter *adapter) | |
4538 | { | |
0331a832 | 4539 | struct ixgbe_ring_feature *f = &adapter->ring_feature[RING_F_FCOE]; |
bf29ee6c AD |
4540 | int i; |
4541 | u8 fcoe_rx_i = 0, fcoe_tx_i = 0; | |
4542 | ||
4543 | if (!(adapter->flags & IXGBE_FLAG_FCOE_ENABLED)) | |
4544 | return false; | |
0331a832 | 4545 | |
bf29ee6c | 4546 | if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) { |
03ecf91a | 4547 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) |
bf29ee6c AD |
4548 | ixgbe_cache_ring_fdir(adapter); |
4549 | else | |
4550 | ixgbe_cache_ring_rss(adapter); | |
8faa2a78 | 4551 | |
bf29ee6c AD |
4552 | fcoe_rx_i = f->mask; |
4553 | fcoe_tx_i = f->mask; | |
0331a832 | 4554 | } |
bf29ee6c AD |
4555 | for (i = 0; i < f->indices; i++, fcoe_rx_i++, fcoe_tx_i++) { |
4556 | adapter->rx_ring[f->mask + i]->reg_idx = fcoe_rx_i; | |
4557 | adapter->tx_ring[f->mask + i]->reg_idx = fcoe_tx_i; | |
4558 | } | |
4559 | return true; | |
0331a832 YZ |
4560 | } |
4561 | ||
4562 | #endif /* IXGBE_FCOE */ | |
1cdd1ec8 GR |
4563 | /** |
4564 | * ixgbe_cache_ring_sriov - Descriptor ring to register mapping for sriov | |
4565 | * @adapter: board private structure to initialize | |
4566 | * | |
4567 | * SR-IOV doesn't use any descriptor rings but changes the default if | |
4568 | * no other mapping is used. | |
4569 | * | |
4570 | */ | |
4571 | static inline bool ixgbe_cache_ring_sriov(struct ixgbe_adapter *adapter) | |
4572 | { | |
4a0b9ca0 PW |
4573 | adapter->rx_ring[0]->reg_idx = adapter->num_vfs * 2; |
4574 | adapter->tx_ring[0]->reg_idx = adapter->num_vfs * 2; | |
1cdd1ec8 GR |
4575 | if (adapter->num_vfs) |
4576 | return true; | |
4577 | else | |
4578 | return false; | |
4579 | } | |
4580 | ||
bc97114d PWJ |
4581 | /** |
4582 | * ixgbe_cache_ring_register - Descriptor ring to register mapping | |
4583 | * @adapter: board private structure to initialize | |
4584 | * | |
4585 | * Once we know the feature-set enabled for the device, we'll cache | |
4586 | * the register offset the descriptor ring is assigned to. | |
4587 | * | |
4588 | * Note, the order the various feature calls is important. It must start with | |
4589 | * the "most" features enabled at the same time, then trickle down to the | |
4590 | * least amount of features turned on at once. | |
4591 | **/ | |
4592 | static void ixgbe_cache_ring_register(struct ixgbe_adapter *adapter) | |
4593 | { | |
4594 | /* start with default case */ | |
4a0b9ca0 PW |
4595 | adapter->rx_ring[0]->reg_idx = 0; |
4596 | adapter->tx_ring[0]->reg_idx = 0; | |
bc97114d | 4597 | |
1cdd1ec8 GR |
4598 | if (ixgbe_cache_ring_sriov(adapter)) |
4599 | return; | |
4600 | ||
e5b64635 JF |
4601 | #ifdef CONFIG_IXGBE_DCB |
4602 | if (ixgbe_cache_ring_dcb(adapter)) | |
4603 | return; | |
4604 | #endif | |
4605 | ||
0331a832 YZ |
4606 | #ifdef IXGBE_FCOE |
4607 | if (ixgbe_cache_ring_fcoe(adapter)) | |
4608 | return; | |
0331a832 | 4609 | #endif /* IXGBE_FCOE */ |
bc97114d | 4610 | |
c4cf55e5 PWJ |
4611 | if (ixgbe_cache_ring_fdir(adapter)) |
4612 | return; | |
4613 | ||
bc97114d PWJ |
4614 | if (ixgbe_cache_ring_rss(adapter)) |
4615 | return; | |
021230d4 AV |
4616 | } |
4617 | ||
9a799d71 AK |
4618 | /** |
4619 | * ixgbe_alloc_queues - Allocate memory for all rings | |
4620 | * @adapter: board private structure to initialize | |
4621 | * | |
4622 | * We allocate one ring per queue at run-time since we don't know the | |
4df10466 JB |
4623 | * number of queues at compile-time. The polling_netdev array is |
4624 | * intended for Multiqueue, but should work fine with a single queue. | |
9a799d71 | 4625 | **/ |
2f90b865 | 4626 | static int ixgbe_alloc_queues(struct ixgbe_adapter *adapter) |
9a799d71 | 4627 | { |
e2ddeba9 | 4628 | int rx = 0, tx = 0, nid = adapter->node; |
9a799d71 | 4629 | |
e2ddeba9 ED |
4630 | if (nid < 0 || !node_online(nid)) |
4631 | nid = first_online_node; | |
4632 | ||
4633 | for (; tx < adapter->num_tx_queues; tx++) { | |
4634 | struct ixgbe_ring *ring; | |
4635 | ||
4636 | ring = kzalloc_node(sizeof(*ring), GFP_KERNEL, nid); | |
4a0b9ca0 | 4637 | if (!ring) |
e2ddeba9 | 4638 | ring = kzalloc(sizeof(*ring), GFP_KERNEL); |
4a0b9ca0 | 4639 | if (!ring) |
e2ddeba9 | 4640 | goto err_allocation; |
4a0b9ca0 | 4641 | ring->count = adapter->tx_ring_count; |
e2ddeba9 ED |
4642 | ring->queue_index = tx; |
4643 | ring->numa_node = nid; | |
b6ec895e | 4644 | ring->dev = &adapter->pdev->dev; |
fc77dc3c | 4645 | ring->netdev = adapter->netdev; |
4a0b9ca0 | 4646 | |
e2ddeba9 | 4647 | adapter->tx_ring[tx] = ring; |
021230d4 | 4648 | } |
b9804972 | 4649 | |
e2ddeba9 ED |
4650 | for (; rx < adapter->num_rx_queues; rx++) { |
4651 | struct ixgbe_ring *ring; | |
4a0b9ca0 | 4652 | |
e2ddeba9 | 4653 | ring = kzalloc_node(sizeof(*ring), GFP_KERNEL, nid); |
4a0b9ca0 | 4654 | if (!ring) |
e2ddeba9 | 4655 | ring = kzalloc(sizeof(*ring), GFP_KERNEL); |
4a0b9ca0 | 4656 | if (!ring) |
e2ddeba9 ED |
4657 | goto err_allocation; |
4658 | ring->count = adapter->rx_ring_count; | |
4659 | ring->queue_index = rx; | |
4660 | ring->numa_node = nid; | |
b6ec895e | 4661 | ring->dev = &adapter->pdev->dev; |
fc77dc3c | 4662 | ring->netdev = adapter->netdev; |
4a0b9ca0 | 4663 | |
e2ddeba9 | 4664 | adapter->rx_ring[rx] = ring; |
021230d4 AV |
4665 | } |
4666 | ||
4667 | ixgbe_cache_ring_register(adapter); | |
4668 | ||
4669 | return 0; | |
4670 | ||
e2ddeba9 ED |
4671 | err_allocation: |
4672 | while (tx) | |
4673 | kfree(adapter->tx_ring[--tx]); | |
4674 | ||
4675 | while (rx) | |
4676 | kfree(adapter->rx_ring[--rx]); | |
021230d4 AV |
4677 | return -ENOMEM; |
4678 | } | |
4679 | ||
4680 | /** | |
4681 | * ixgbe_set_interrupt_capability - set MSI-X or MSI if supported | |
4682 | * @adapter: board private structure to initialize | |
4683 | * | |
4684 | * Attempt to configure the interrupts using the best available | |
4685 | * capabilities of the hardware and the kernel. | |
4686 | **/ | |
feea6a57 | 4687 | static int ixgbe_set_interrupt_capability(struct ixgbe_adapter *adapter) |
021230d4 | 4688 | { |
8be0e467 | 4689 | struct ixgbe_hw *hw = &adapter->hw; |
021230d4 AV |
4690 | int err = 0; |
4691 | int vector, v_budget; | |
4692 | ||
4693 | /* | |
4694 | * It's easy to be greedy for MSI-X vectors, but it really | |
4695 | * doesn't do us much good if we have a lot more vectors | |
4696 | * than CPU's. So let's be conservative and only ask for | |
342bde1b | 4697 | * (roughly) the same number of vectors as there are CPU's. |
021230d4 AV |
4698 | */ |
4699 | v_budget = min(adapter->num_rx_queues + adapter->num_tx_queues, | |
e8e9f696 | 4700 | (int)num_online_cpus()) + NON_Q_VECTORS; |
021230d4 AV |
4701 | |
4702 | /* | |
4703 | * At the same time, hardware can only support a maximum of | |
8be0e467 PW |
4704 | * hw.mac->max_msix_vectors vectors. With features |
4705 | * such as RSS and VMDq, we can easily surpass the number of Rx and Tx | |
4706 | * descriptor queues supported by our device. Thus, we cap it off in | |
4707 | * those rare cases where the cpu count also exceeds our vector limit. | |
021230d4 | 4708 | */ |
8be0e467 | 4709 | v_budget = min(v_budget, (int)hw->mac.max_msix_vectors); |
021230d4 AV |
4710 | |
4711 | /* A failure in MSI-X entry allocation isn't fatal, but it does | |
4712 | * mean we disable MSI-X capabilities of the adapter. */ | |
4713 | adapter->msix_entries = kcalloc(v_budget, | |
e8e9f696 | 4714 | sizeof(struct msix_entry), GFP_KERNEL); |
7a921c93 AD |
4715 | if (adapter->msix_entries) { |
4716 | for (vector = 0; vector < v_budget; vector++) | |
4717 | adapter->msix_entries[vector].entry = vector; | |
021230d4 | 4718 | |
7a921c93 | 4719 | ixgbe_acquire_msix_vectors(adapter, v_budget); |
021230d4 | 4720 | |
7a921c93 AD |
4721 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) |
4722 | goto out; | |
4723 | } | |
26d27844 | 4724 | |
7a921c93 AD |
4725 | adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED; |
4726 | adapter->flags &= ~IXGBE_FLAG_RSS_ENABLED; | |
03ecf91a | 4727 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { |
45b9f509 | 4728 | e_err(probe, |
03ecf91a | 4729 | "ATR is not supported while multiple " |
45b9f509 AD |
4730 | "queues are disabled. Disabling Flow Director\n"); |
4731 | } | |
c4cf55e5 | 4732 | adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE; |
c4cf55e5 | 4733 | adapter->atr_sample_rate = 0; |
1cdd1ec8 GR |
4734 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) |
4735 | ixgbe_disable_sriov(adapter); | |
4736 | ||
847f53ff BH |
4737 | err = ixgbe_set_num_queues(adapter); |
4738 | if (err) | |
4739 | return err; | |
021230d4 | 4740 | |
021230d4 AV |
4741 | err = pci_enable_msi(adapter->pdev); |
4742 | if (!err) { | |
4743 | adapter->flags |= IXGBE_FLAG_MSI_ENABLED; | |
4744 | } else { | |
849c4542 ET |
4745 | netif_printk(adapter, hw, KERN_DEBUG, adapter->netdev, |
4746 | "Unable to allocate MSI interrupt, " | |
4747 | "falling back to legacy. Error: %d\n", err); | |
021230d4 AV |
4748 | /* reset err */ |
4749 | err = 0; | |
4750 | } | |
4751 | ||
4752 | out: | |
021230d4 AV |
4753 | return err; |
4754 | } | |
4755 | ||
7a921c93 AD |
4756 | /** |
4757 | * ixgbe_alloc_q_vectors - Allocate memory for interrupt vectors | |
4758 | * @adapter: board private structure to initialize | |
4759 | * | |
4760 | * We allocate one q_vector per queue interrupt. If allocation fails we | |
4761 | * return -ENOMEM. | |
4762 | **/ | |
4763 | static int ixgbe_alloc_q_vectors(struct ixgbe_adapter *adapter) | |
4764 | { | |
4ff7fb12 | 4765 | int v_idx, num_q_vectors; |
7a921c93 | 4766 | struct ixgbe_q_vector *q_vector; |
7a921c93 | 4767 | |
4ff7fb12 | 4768 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) |
7a921c93 | 4769 | num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; |
4ff7fb12 | 4770 | else |
7a921c93 | 4771 | num_q_vectors = 1; |
7a921c93 | 4772 | |
4ff7fb12 | 4773 | for (v_idx = 0; v_idx < num_q_vectors; v_idx++) { |
1a6c14a2 | 4774 | q_vector = kzalloc_node(sizeof(struct ixgbe_q_vector), |
e8e9f696 | 4775 | GFP_KERNEL, adapter->node); |
1a6c14a2 JB |
4776 | if (!q_vector) |
4777 | q_vector = kzalloc(sizeof(struct ixgbe_q_vector), | |
e8e9f696 | 4778 | GFP_KERNEL); |
7a921c93 AD |
4779 | if (!q_vector) |
4780 | goto err_out; | |
4ff7fb12 | 4781 | |
7a921c93 | 4782 | q_vector->adapter = adapter; |
4ff7fb12 AD |
4783 | q_vector->v_idx = v_idx; |
4784 | ||
207867f5 AD |
4785 | /* Allocate the affinity_hint cpumask, configure the mask */ |
4786 | if (!alloc_cpumask_var(&q_vector->affinity_mask, GFP_KERNEL)) | |
4787 | goto err_out; | |
4788 | cpumask_set_cpu(v_idx, q_vector->affinity_mask); | |
4ff7fb12 AD |
4789 | netif_napi_add(adapter->netdev, &q_vector->napi, |
4790 | ixgbe_poll, 64); | |
4791 | adapter->q_vector[v_idx] = q_vector; | |
7a921c93 AD |
4792 | } |
4793 | ||
4794 | return 0; | |
4795 | ||
4796 | err_out: | |
4ff7fb12 AD |
4797 | while (v_idx) { |
4798 | v_idx--; | |
4799 | q_vector = adapter->q_vector[v_idx]; | |
7a921c93 | 4800 | netif_napi_del(&q_vector->napi); |
207867f5 | 4801 | free_cpumask_var(q_vector->affinity_mask); |
7a921c93 | 4802 | kfree(q_vector); |
4ff7fb12 | 4803 | adapter->q_vector[v_idx] = NULL; |
7a921c93 AD |
4804 | } |
4805 | return -ENOMEM; | |
4806 | } | |
4807 | ||
4808 | /** | |
4809 | * ixgbe_free_q_vectors - Free memory allocated for interrupt vectors | |
4810 | * @adapter: board private structure to initialize | |
4811 | * | |
4812 | * This function frees the memory allocated to the q_vectors. In addition if | |
4813 | * NAPI is enabled it will delete any references to the NAPI struct prior | |
4814 | * to freeing the q_vector. | |
4815 | **/ | |
4816 | static void ixgbe_free_q_vectors(struct ixgbe_adapter *adapter) | |
4817 | { | |
207867f5 | 4818 | int v_idx, num_q_vectors; |
7a921c93 | 4819 | |
91281fd3 | 4820 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) |
7a921c93 | 4821 | num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; |
91281fd3 | 4822 | else |
7a921c93 | 4823 | num_q_vectors = 1; |
7a921c93 | 4824 | |
207867f5 AD |
4825 | for (v_idx = 0; v_idx < num_q_vectors; v_idx++) { |
4826 | struct ixgbe_q_vector *q_vector = adapter->q_vector[v_idx]; | |
4827 | adapter->q_vector[v_idx] = NULL; | |
91281fd3 | 4828 | netif_napi_del(&q_vector->napi); |
207867f5 | 4829 | free_cpumask_var(q_vector->affinity_mask); |
7a921c93 AD |
4830 | kfree(q_vector); |
4831 | } | |
4832 | } | |
4833 | ||
7b25cdba | 4834 | static void ixgbe_reset_interrupt_capability(struct ixgbe_adapter *adapter) |
021230d4 AV |
4835 | { |
4836 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { | |
4837 | adapter->flags &= ~IXGBE_FLAG_MSIX_ENABLED; | |
4838 | pci_disable_msix(adapter->pdev); | |
4839 | kfree(adapter->msix_entries); | |
4840 | adapter->msix_entries = NULL; | |
4841 | } else if (adapter->flags & IXGBE_FLAG_MSI_ENABLED) { | |
4842 | adapter->flags &= ~IXGBE_FLAG_MSI_ENABLED; | |
4843 | pci_disable_msi(adapter->pdev); | |
4844 | } | |
021230d4 AV |
4845 | } |
4846 | ||
4847 | /** | |
4848 | * ixgbe_init_interrupt_scheme - Determine proper interrupt scheme | |
4849 | * @adapter: board private structure to initialize | |
4850 | * | |
4851 | * We determine which interrupt scheme to use based on... | |
4852 | * - Kernel support (MSI, MSI-X) | |
4853 | * - which can be user-defined (via MODULE_PARAM) | |
4854 | * - Hardware queue count (num_*_queues) | |
4855 | * - defined by miscellaneous hardware support/features (RSS, etc.) | |
4856 | **/ | |
2f90b865 | 4857 | int ixgbe_init_interrupt_scheme(struct ixgbe_adapter *adapter) |
021230d4 AV |
4858 | { |
4859 | int err; | |
4860 | ||
4861 | /* Number of supported queues */ | |
847f53ff BH |
4862 | err = ixgbe_set_num_queues(adapter); |
4863 | if (err) | |
4864 | return err; | |
021230d4 | 4865 | |
021230d4 AV |
4866 | err = ixgbe_set_interrupt_capability(adapter); |
4867 | if (err) { | |
849c4542 | 4868 | e_dev_err("Unable to setup interrupt capabilities\n"); |
021230d4 | 4869 | goto err_set_interrupt; |
9a799d71 AK |
4870 | } |
4871 | ||
7a921c93 AD |
4872 | err = ixgbe_alloc_q_vectors(adapter); |
4873 | if (err) { | |
849c4542 | 4874 | e_dev_err("Unable to allocate memory for queue vectors\n"); |
7a921c93 AD |
4875 | goto err_alloc_q_vectors; |
4876 | } | |
4877 | ||
4878 | err = ixgbe_alloc_queues(adapter); | |
4879 | if (err) { | |
849c4542 | 4880 | e_dev_err("Unable to allocate memory for queues\n"); |
7a921c93 AD |
4881 | goto err_alloc_queues; |
4882 | } | |
4883 | ||
849c4542 | 4884 | e_dev_info("Multiqueue %s: Rx Queue count = %u, Tx Queue count = %u\n", |
396e799c ET |
4885 | (adapter->num_rx_queues > 1) ? "Enabled" : "Disabled", |
4886 | adapter->num_rx_queues, adapter->num_tx_queues); | |
021230d4 AV |
4887 | |
4888 | set_bit(__IXGBE_DOWN, &adapter->state); | |
4889 | ||
9a799d71 | 4890 | return 0; |
021230d4 | 4891 | |
7a921c93 AD |
4892 | err_alloc_queues: |
4893 | ixgbe_free_q_vectors(adapter); | |
4894 | err_alloc_q_vectors: | |
4895 | ixgbe_reset_interrupt_capability(adapter); | |
021230d4 | 4896 | err_set_interrupt: |
7a921c93 AD |
4897 | return err; |
4898 | } | |
4899 | ||
4900 | /** | |
4901 | * ixgbe_clear_interrupt_scheme - Clear the current interrupt scheme settings | |
4902 | * @adapter: board private structure to clear interrupt scheme on | |
4903 | * | |
4904 | * We go through and clear interrupt specific resources and reset the structure | |
4905 | * to pre-load conditions | |
4906 | **/ | |
4907 | void ixgbe_clear_interrupt_scheme(struct ixgbe_adapter *adapter) | |
4908 | { | |
4a0b9ca0 PW |
4909 | int i; |
4910 | ||
4911 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
4912 | kfree(adapter->tx_ring[i]); | |
4913 | adapter->tx_ring[i] = NULL; | |
4914 | } | |
4915 | for (i = 0; i < adapter->num_rx_queues; i++) { | |
1a51502b ED |
4916 | struct ixgbe_ring *ring = adapter->rx_ring[i]; |
4917 | ||
4918 | /* ixgbe_get_stats64() might access this ring, we must wait | |
4919 | * a grace period before freeing it. | |
4920 | */ | |
bcec8b65 | 4921 | kfree_rcu(ring, rcu); |
4a0b9ca0 PW |
4922 | adapter->rx_ring[i] = NULL; |
4923 | } | |
7a921c93 | 4924 | |
b8eb3a10 DS |
4925 | adapter->num_tx_queues = 0; |
4926 | adapter->num_rx_queues = 0; | |
4927 | ||
7a921c93 AD |
4928 | ixgbe_free_q_vectors(adapter); |
4929 | ixgbe_reset_interrupt_capability(adapter); | |
9a799d71 AK |
4930 | } |
4931 | ||
4932 | /** | |
4933 | * ixgbe_sw_init - Initialize general software structures (struct ixgbe_adapter) | |
4934 | * @adapter: board private structure to initialize | |
4935 | * | |
4936 | * ixgbe_sw_init initializes the Adapter private data structure. | |
4937 | * Fields are initialized based on PCI device information and | |
4938 | * OS network device settings (MTU size). | |
4939 | **/ | |
4940 | static int __devinit ixgbe_sw_init(struct ixgbe_adapter *adapter) | |
4941 | { | |
4942 | struct ixgbe_hw *hw = &adapter->hw; | |
4943 | struct pci_dev *pdev = adapter->pdev; | |
021230d4 | 4944 | unsigned int rss; |
7a6b6f51 | 4945 | #ifdef CONFIG_IXGBE_DCB |
2f90b865 AD |
4946 | int j; |
4947 | struct tc_configuration *tc; | |
4948 | #endif | |
021230d4 | 4949 | |
c44ade9e JB |
4950 | /* PCI config space info */ |
4951 | ||
4952 | hw->vendor_id = pdev->vendor; | |
4953 | hw->device_id = pdev->device; | |
4954 | hw->revision_id = pdev->revision; | |
4955 | hw->subsystem_vendor_id = pdev->subsystem_vendor; | |
4956 | hw->subsystem_device_id = pdev->subsystem_device; | |
4957 | ||
021230d4 AV |
4958 | /* Set capability flags */ |
4959 | rss = min(IXGBE_MAX_RSS_INDICES, (int)num_online_cpus()); | |
4960 | adapter->ring_feature[RING_F_RSS].indices = rss; | |
4961 | adapter->flags |= IXGBE_FLAG_RSS_ENABLED; | |
bd508178 AD |
4962 | switch (hw->mac.type) { |
4963 | case ixgbe_mac_82598EB: | |
bf069c97 DS |
4964 | if (hw->device_id == IXGBE_DEV_ID_82598AT) |
4965 | adapter->flags |= IXGBE_FLAG_FAN_FAIL_CAPABLE; | |
e8e26350 | 4966 | adapter->max_msix_q_vectors = MAX_MSIX_Q_VECTORS_82598; |
bd508178 | 4967 | break; |
b93a2226 | 4968 | case ixgbe_mac_X540: |
4f51bf70 JK |
4969 | adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_CAPABLE; |
4970 | case ixgbe_mac_82599EB: | |
e8e26350 | 4971 | adapter->max_msix_q_vectors = MAX_MSIX_Q_VECTORS_82599; |
0c19d6af PWJ |
4972 | adapter->flags2 |= IXGBE_FLAG2_RSC_CAPABLE; |
4973 | adapter->flags2 |= IXGBE_FLAG2_RSC_ENABLED; | |
119fc60a MC |
4974 | if (hw->device_id == IXGBE_DEV_ID_82599_T3_LOM) |
4975 | adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_CAPABLE; | |
45b9f509 AD |
4976 | /* Flow Director hash filters enabled */ |
4977 | adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE; | |
4978 | adapter->atr_sample_rate = 20; | |
c4cf55e5 | 4979 | adapter->ring_feature[RING_F_FDIR].indices = |
e8e9f696 | 4980 | IXGBE_MAX_FDIR_INDICES; |
c04f6ca8 | 4981 | adapter->fdir_pballoc = IXGBE_FDIR_PBALLOC_64K; |
eacd73f7 | 4982 | #ifdef IXGBE_FCOE |
0d551589 YZ |
4983 | adapter->flags |= IXGBE_FLAG_FCOE_CAPABLE; |
4984 | adapter->flags &= ~IXGBE_FLAG_FCOE_ENABLED; | |
4985 | adapter->ring_feature[RING_F_FCOE].indices = 0; | |
61a0f421 | 4986 | #ifdef CONFIG_IXGBE_DCB |
6ee16520 | 4987 | /* Default traffic class to use for FCoE */ |
56075a98 | 4988 | adapter->fcoe.up = IXGBE_FCOE_DEFTC; |
61a0f421 | 4989 | #endif |
eacd73f7 | 4990 | #endif /* IXGBE_FCOE */ |
bd508178 AD |
4991 | break; |
4992 | default: | |
4993 | break; | |
f8212f97 | 4994 | } |
2f90b865 | 4995 | |
1fc5f038 AD |
4996 | /* n-tuple support exists, always init our spinlock */ |
4997 | spin_lock_init(&adapter->fdir_perfect_lock); | |
4998 | ||
7a6b6f51 | 4999 | #ifdef CONFIG_IXGBE_DCB |
4de2a022 JF |
5000 | switch (hw->mac.type) { |
5001 | case ixgbe_mac_X540: | |
5002 | adapter->dcb_cfg.num_tcs.pg_tcs = X540_TRAFFIC_CLASS; | |
5003 | adapter->dcb_cfg.num_tcs.pfc_tcs = X540_TRAFFIC_CLASS; | |
5004 | break; | |
5005 | default: | |
5006 | adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS; | |
5007 | adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS; | |
5008 | break; | |
5009 | } | |
5010 | ||
2f90b865 AD |
5011 | /* Configure DCB traffic classes */ |
5012 | for (j = 0; j < MAX_TRAFFIC_CLASS; j++) { | |
5013 | tc = &adapter->dcb_cfg.tc_config[j]; | |
5014 | tc->path[DCB_TX_CONFIG].bwg_id = 0; | |
5015 | tc->path[DCB_TX_CONFIG].bwg_percent = 12 + (j & 1); | |
5016 | tc->path[DCB_RX_CONFIG].bwg_id = 0; | |
5017 | tc->path[DCB_RX_CONFIG].bwg_percent = 12 + (j & 1); | |
5018 | tc->dcb_pfc = pfc_disabled; | |
5019 | } | |
4de2a022 JF |
5020 | |
5021 | /* Initialize default user to priority mapping, UPx->TC0 */ | |
5022 | tc = &adapter->dcb_cfg.tc_config[0]; | |
5023 | tc->path[DCB_TX_CONFIG].up_to_tc_bitmap = 0xFF; | |
5024 | tc->path[DCB_RX_CONFIG].up_to_tc_bitmap = 0xFF; | |
5025 | ||
2f90b865 AD |
5026 | adapter->dcb_cfg.bw_percentage[DCB_TX_CONFIG][0] = 100; |
5027 | adapter->dcb_cfg.bw_percentage[DCB_RX_CONFIG][0] = 100; | |
264857b8 | 5028 | adapter->dcb_cfg.pfc_mode_enable = false; |
2f90b865 | 5029 | adapter->dcb_set_bitmap = 0x00; |
3032309b | 5030 | adapter->dcbx_cap = DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_CEE; |
2f90b865 | 5031 | ixgbe_copy_dcb_cfg(&adapter->dcb_cfg, &adapter->temp_dcb_cfg, |
e5b64635 | 5032 | MAX_TRAFFIC_CLASS); |
2f90b865 AD |
5033 | |
5034 | #endif | |
9a799d71 AK |
5035 | |
5036 | /* default flow control settings */ | |
cd7664f6 | 5037 | hw->fc.requested_mode = ixgbe_fc_full; |
71fd570b | 5038 | hw->fc.current_mode = ixgbe_fc_full; /* init for ethtool output */ |
264857b8 PWJ |
5039 | #ifdef CONFIG_DCB |
5040 | adapter->last_lfc_mode = hw->fc.current_mode; | |
5041 | #endif | |
9da712d2 | 5042 | ixgbe_pbthresh_setup(adapter); |
2b9ade93 JB |
5043 | hw->fc.pause_time = IXGBE_DEFAULT_FCPAUSE; |
5044 | hw->fc.send_xon = true; | |
71fd570b | 5045 | hw->fc.disable_fc_autoneg = false; |
9a799d71 | 5046 | |
30efa5a3 | 5047 | /* enable itr by default in dynamic mode */ |
f7554a2b | 5048 | adapter->rx_itr_setting = 1; |
f7554a2b | 5049 | adapter->tx_itr_setting = 1; |
30efa5a3 JB |
5050 | |
5051 | /* set defaults for eitr in MegaBytes */ | |
5052 | adapter->eitr_low = 10; | |
5053 | adapter->eitr_high = 20; | |
5054 | ||
5055 | /* set default ring sizes */ | |
5056 | adapter->tx_ring_count = IXGBE_DEFAULT_TXD; | |
5057 | adapter->rx_ring_count = IXGBE_DEFAULT_RXD; | |
5058 | ||
bd198058 | 5059 | /* set default work limits */ |
59224555 | 5060 | adapter->tx_work_limit = IXGBE_DEFAULT_TX_WORK; |
bd198058 | 5061 | |
9a799d71 | 5062 | /* initialize eeprom parameters */ |
c44ade9e | 5063 | if (ixgbe_init_eeprom_params_generic(hw)) { |
849c4542 | 5064 | e_dev_err("EEPROM initialization failed\n"); |
9a799d71 AK |
5065 | return -EIO; |
5066 | } | |
5067 | ||
021230d4 | 5068 | /* enable rx csum by default */ |
9a799d71 AK |
5069 | adapter->flags |= IXGBE_FLAG_RX_CSUM_ENABLED; |
5070 | ||
1a6c14a2 JB |
5071 | /* get assigned NUMA node */ |
5072 | adapter->node = dev_to_node(&pdev->dev); | |
5073 | ||
9a799d71 AK |
5074 | set_bit(__IXGBE_DOWN, &adapter->state); |
5075 | ||
5076 | return 0; | |
5077 | } | |
5078 | ||
5079 | /** | |
5080 | * ixgbe_setup_tx_resources - allocate Tx resources (Descriptors) | |
3a581073 | 5081 | * @tx_ring: tx descriptor ring (for a specific queue) to setup |
9a799d71 AK |
5082 | * |
5083 | * Return 0 on success, negative on failure | |
5084 | **/ | |
b6ec895e | 5085 | int ixgbe_setup_tx_resources(struct ixgbe_ring *tx_ring) |
9a799d71 | 5086 | { |
b6ec895e | 5087 | struct device *dev = tx_ring->dev; |
9a799d71 AK |
5088 | int size; |
5089 | ||
3a581073 | 5090 | size = sizeof(struct ixgbe_tx_buffer) * tx_ring->count; |
89bf67f1 | 5091 | tx_ring->tx_buffer_info = vzalloc_node(size, tx_ring->numa_node); |
1a6c14a2 | 5092 | if (!tx_ring->tx_buffer_info) |
89bf67f1 | 5093 | tx_ring->tx_buffer_info = vzalloc(size); |
e01c31a5 JB |
5094 | if (!tx_ring->tx_buffer_info) |
5095 | goto err; | |
9a799d71 AK |
5096 | |
5097 | /* round up to nearest 4K */ | |
12207e49 | 5098 | tx_ring->size = tx_ring->count * sizeof(union ixgbe_adv_tx_desc); |
3a581073 | 5099 | tx_ring->size = ALIGN(tx_ring->size, 4096); |
9a799d71 | 5100 | |
b6ec895e | 5101 | tx_ring->desc = dma_alloc_coherent(dev, tx_ring->size, |
1b507730 | 5102 | &tx_ring->dma, GFP_KERNEL); |
e01c31a5 JB |
5103 | if (!tx_ring->desc) |
5104 | goto err; | |
9a799d71 | 5105 | |
3a581073 JB |
5106 | tx_ring->next_to_use = 0; |
5107 | tx_ring->next_to_clean = 0; | |
9a799d71 | 5108 | return 0; |
e01c31a5 JB |
5109 | |
5110 | err: | |
5111 | vfree(tx_ring->tx_buffer_info); | |
5112 | tx_ring->tx_buffer_info = NULL; | |
b6ec895e | 5113 | dev_err(dev, "Unable to allocate memory for the Tx descriptor ring\n"); |
e01c31a5 | 5114 | return -ENOMEM; |
9a799d71 AK |
5115 | } |
5116 | ||
69888674 AD |
5117 | /** |
5118 | * ixgbe_setup_all_tx_resources - allocate all queues Tx resources | |
5119 | * @adapter: board private structure | |
5120 | * | |
5121 | * If this function returns with an error, then it's possible one or | |
5122 | * more of the rings is populated (while the rest are not). It is the | |
5123 | * callers duty to clean those orphaned rings. | |
5124 | * | |
5125 | * Return 0 on success, negative on failure | |
5126 | **/ | |
5127 | static int ixgbe_setup_all_tx_resources(struct ixgbe_adapter *adapter) | |
5128 | { | |
5129 | int i, err = 0; | |
5130 | ||
5131 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
b6ec895e | 5132 | err = ixgbe_setup_tx_resources(adapter->tx_ring[i]); |
69888674 AD |
5133 | if (!err) |
5134 | continue; | |
396e799c | 5135 | e_err(probe, "Allocation for Tx Queue %u failed\n", i); |
69888674 AD |
5136 | break; |
5137 | } | |
5138 | ||
5139 | return err; | |
5140 | } | |
5141 | ||
9a799d71 AK |
5142 | /** |
5143 | * ixgbe_setup_rx_resources - allocate Rx resources (Descriptors) | |
3a581073 | 5144 | * @rx_ring: rx descriptor ring (for a specific queue) to setup |
9a799d71 AK |
5145 | * |
5146 | * Returns 0 on success, negative on failure | |
5147 | **/ | |
b6ec895e | 5148 | int ixgbe_setup_rx_resources(struct ixgbe_ring *rx_ring) |
9a799d71 | 5149 | { |
b6ec895e | 5150 | struct device *dev = rx_ring->dev; |
021230d4 | 5151 | int size; |
9a799d71 | 5152 | |
3a581073 | 5153 | size = sizeof(struct ixgbe_rx_buffer) * rx_ring->count; |
89bf67f1 | 5154 | rx_ring->rx_buffer_info = vzalloc_node(size, rx_ring->numa_node); |
1a6c14a2 | 5155 | if (!rx_ring->rx_buffer_info) |
89bf67f1 | 5156 | rx_ring->rx_buffer_info = vzalloc(size); |
b6ec895e AD |
5157 | if (!rx_ring->rx_buffer_info) |
5158 | goto err; | |
9a799d71 | 5159 | |
9a799d71 | 5160 | /* Round up to nearest 4K */ |
3a581073 JB |
5161 | rx_ring->size = rx_ring->count * sizeof(union ixgbe_adv_rx_desc); |
5162 | rx_ring->size = ALIGN(rx_ring->size, 4096); | |
9a799d71 | 5163 | |
b6ec895e | 5164 | rx_ring->desc = dma_alloc_coherent(dev, rx_ring->size, |
1b507730 | 5165 | &rx_ring->dma, GFP_KERNEL); |
9a799d71 | 5166 | |
b6ec895e AD |
5167 | if (!rx_ring->desc) |
5168 | goto err; | |
9a799d71 | 5169 | |
3a581073 JB |
5170 | rx_ring->next_to_clean = 0; |
5171 | rx_ring->next_to_use = 0; | |
9a799d71 AK |
5172 | |
5173 | return 0; | |
b6ec895e AD |
5174 | err: |
5175 | vfree(rx_ring->rx_buffer_info); | |
5176 | rx_ring->rx_buffer_info = NULL; | |
5177 | dev_err(dev, "Unable to allocate memory for the Rx descriptor ring\n"); | |
177db6ff | 5178 | return -ENOMEM; |
9a799d71 AK |
5179 | } |
5180 | ||
69888674 AD |
5181 | /** |
5182 | * ixgbe_setup_all_rx_resources - allocate all queues Rx resources | |
5183 | * @adapter: board private structure | |
5184 | * | |
5185 | * If this function returns with an error, then it's possible one or | |
5186 | * more of the rings is populated (while the rest are not). It is the | |
5187 | * callers duty to clean those orphaned rings. | |
5188 | * | |
5189 | * Return 0 on success, negative on failure | |
5190 | **/ | |
69888674 AD |
5191 | static int ixgbe_setup_all_rx_resources(struct ixgbe_adapter *adapter) |
5192 | { | |
5193 | int i, err = 0; | |
5194 | ||
5195 | for (i = 0; i < adapter->num_rx_queues; i++) { | |
b6ec895e | 5196 | err = ixgbe_setup_rx_resources(adapter->rx_ring[i]); |
69888674 AD |
5197 | if (!err) |
5198 | continue; | |
396e799c | 5199 | e_err(probe, "Allocation for Rx Queue %u failed\n", i); |
69888674 AD |
5200 | break; |
5201 | } | |
5202 | ||
5203 | return err; | |
5204 | } | |
5205 | ||
9a799d71 AK |
5206 | /** |
5207 | * ixgbe_free_tx_resources - Free Tx Resources per Queue | |
9a799d71 AK |
5208 | * @tx_ring: Tx descriptor ring for a specific queue |
5209 | * | |
5210 | * Free all transmit software resources | |
5211 | **/ | |
b6ec895e | 5212 | void ixgbe_free_tx_resources(struct ixgbe_ring *tx_ring) |
9a799d71 | 5213 | { |
b6ec895e | 5214 | ixgbe_clean_tx_ring(tx_ring); |
9a799d71 AK |
5215 | |
5216 | vfree(tx_ring->tx_buffer_info); | |
5217 | tx_ring->tx_buffer_info = NULL; | |
5218 | ||
b6ec895e AD |
5219 | /* if not set, then don't free */ |
5220 | if (!tx_ring->desc) | |
5221 | return; | |
5222 | ||
5223 | dma_free_coherent(tx_ring->dev, tx_ring->size, | |
5224 | tx_ring->desc, tx_ring->dma); | |
9a799d71 AK |
5225 | |
5226 | tx_ring->desc = NULL; | |
5227 | } | |
5228 | ||
5229 | /** | |
5230 | * ixgbe_free_all_tx_resources - Free Tx Resources for All Queues | |
5231 | * @adapter: board private structure | |
5232 | * | |
5233 | * Free all transmit software resources | |
5234 | **/ | |
5235 | static void ixgbe_free_all_tx_resources(struct ixgbe_adapter *adapter) | |
5236 | { | |
5237 | int i; | |
5238 | ||
5239 | for (i = 0; i < adapter->num_tx_queues; i++) | |
4a0b9ca0 | 5240 | if (adapter->tx_ring[i]->desc) |
b6ec895e | 5241 | ixgbe_free_tx_resources(adapter->tx_ring[i]); |
9a799d71 AK |
5242 | } |
5243 | ||
5244 | /** | |
b4617240 | 5245 | * ixgbe_free_rx_resources - Free Rx Resources |
9a799d71 AK |
5246 | * @rx_ring: ring to clean the resources from |
5247 | * | |
5248 | * Free all receive software resources | |
5249 | **/ | |
b6ec895e | 5250 | void ixgbe_free_rx_resources(struct ixgbe_ring *rx_ring) |
9a799d71 | 5251 | { |
b6ec895e | 5252 | ixgbe_clean_rx_ring(rx_ring); |
9a799d71 AK |
5253 | |
5254 | vfree(rx_ring->rx_buffer_info); | |
5255 | rx_ring->rx_buffer_info = NULL; | |
5256 | ||
b6ec895e AD |
5257 | /* if not set, then don't free */ |
5258 | if (!rx_ring->desc) | |
5259 | return; | |
5260 | ||
5261 | dma_free_coherent(rx_ring->dev, rx_ring->size, | |
5262 | rx_ring->desc, rx_ring->dma); | |
9a799d71 AK |
5263 | |
5264 | rx_ring->desc = NULL; | |
5265 | } | |
5266 | ||
5267 | /** | |
5268 | * ixgbe_free_all_rx_resources - Free Rx Resources for All Queues | |
5269 | * @adapter: board private structure | |
5270 | * | |
5271 | * Free all receive software resources | |
5272 | **/ | |
5273 | static void ixgbe_free_all_rx_resources(struct ixgbe_adapter *adapter) | |
5274 | { | |
5275 | int i; | |
5276 | ||
5277 | for (i = 0; i < adapter->num_rx_queues; i++) | |
4a0b9ca0 | 5278 | if (adapter->rx_ring[i]->desc) |
b6ec895e | 5279 | ixgbe_free_rx_resources(adapter->rx_ring[i]); |
9a799d71 AK |
5280 | } |
5281 | ||
9a799d71 AK |
5282 | /** |
5283 | * ixgbe_change_mtu - Change the Maximum Transfer Unit | |
5284 | * @netdev: network interface device structure | |
5285 | * @new_mtu: new value for maximum frame size | |
5286 | * | |
5287 | * Returns 0 on success, negative on failure | |
5288 | **/ | |
5289 | static int ixgbe_change_mtu(struct net_device *netdev, int new_mtu) | |
5290 | { | |
5291 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
16b61beb | 5292 | struct ixgbe_hw *hw = &adapter->hw; |
9a799d71 AK |
5293 | int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN; |
5294 | ||
42c783c5 | 5295 | /* MTU < 68 is an error and causes problems on some kernels */ |
e9f98072 GR |
5296 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED && |
5297 | hw->mac.type != ixgbe_mac_X540) { | |
5298 | if ((new_mtu < 68) || (max_frame > MAXIMUM_ETHERNET_VLAN_SIZE)) | |
5299 | return -EINVAL; | |
5300 | } else { | |
5301 | if ((new_mtu < 68) || (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE)) | |
5302 | return -EINVAL; | |
5303 | } | |
9a799d71 | 5304 | |
396e799c | 5305 | e_info(probe, "changing MTU from %d to %d\n", netdev->mtu, new_mtu); |
021230d4 | 5306 | /* must set new MTU before calling down or up */ |
9a799d71 AK |
5307 | netdev->mtu = new_mtu; |
5308 | ||
d4f80882 AV |
5309 | if (netif_running(netdev)) |
5310 | ixgbe_reinit_locked(adapter); | |
9a799d71 AK |
5311 | |
5312 | return 0; | |
5313 | } | |
5314 | ||
5315 | /** | |
5316 | * ixgbe_open - Called when a network interface is made active | |
5317 | * @netdev: network interface device structure | |
5318 | * | |
5319 | * Returns 0 on success, negative value on failure | |
5320 | * | |
5321 | * The open entry point is called when a network interface is made | |
5322 | * active by the system (IFF_UP). At this point all resources needed | |
5323 | * for transmit and receive operations are allocated, the interrupt | |
5324 | * handler is registered with the OS, the watchdog timer is started, | |
5325 | * and the stack is notified that the interface is ready. | |
5326 | **/ | |
5327 | static int ixgbe_open(struct net_device *netdev) | |
5328 | { | |
5329 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
5330 | int err; | |
4bebfaa5 AK |
5331 | |
5332 | /* disallow open during test */ | |
5333 | if (test_bit(__IXGBE_TESTING, &adapter->state)) | |
5334 | return -EBUSY; | |
9a799d71 | 5335 | |
54386467 JB |
5336 | netif_carrier_off(netdev); |
5337 | ||
9a799d71 AK |
5338 | /* allocate transmit descriptors */ |
5339 | err = ixgbe_setup_all_tx_resources(adapter); | |
5340 | if (err) | |
5341 | goto err_setup_tx; | |
5342 | ||
9a799d71 AK |
5343 | /* allocate receive descriptors */ |
5344 | err = ixgbe_setup_all_rx_resources(adapter); | |
5345 | if (err) | |
5346 | goto err_setup_rx; | |
5347 | ||
5348 | ixgbe_configure(adapter); | |
5349 | ||
021230d4 | 5350 | err = ixgbe_request_irq(adapter); |
9a799d71 AK |
5351 | if (err) |
5352 | goto err_req_irq; | |
5353 | ||
c7ccde0f | 5354 | ixgbe_up_complete(adapter); |
9a799d71 AK |
5355 | |
5356 | return 0; | |
5357 | ||
9a799d71 | 5358 | err_req_irq: |
9a799d71 | 5359 | err_setup_rx: |
a20a1199 | 5360 | ixgbe_free_all_rx_resources(adapter); |
9a799d71 | 5361 | err_setup_tx: |
a20a1199 | 5362 | ixgbe_free_all_tx_resources(adapter); |
9a799d71 AK |
5363 | ixgbe_reset(adapter); |
5364 | ||
5365 | return err; | |
5366 | } | |
5367 | ||
5368 | /** | |
5369 | * ixgbe_close - Disables a network interface | |
5370 | * @netdev: network interface device structure | |
5371 | * | |
5372 | * Returns 0, this is not allowed to fail | |
5373 | * | |
5374 | * The close entry point is called when an interface is de-activated | |
5375 | * by the OS. The hardware is still under the drivers control, but | |
5376 | * needs to be disabled. A global MAC reset is issued to stop the | |
5377 | * hardware, and all transmit and receive resources are freed. | |
5378 | **/ | |
5379 | static int ixgbe_close(struct net_device *netdev) | |
5380 | { | |
5381 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
9a799d71 AK |
5382 | |
5383 | ixgbe_down(adapter); | |
5384 | ixgbe_free_irq(adapter); | |
5385 | ||
e4911d57 AD |
5386 | ixgbe_fdir_filter_exit(adapter); |
5387 | ||
9a799d71 AK |
5388 | ixgbe_free_all_tx_resources(adapter); |
5389 | ixgbe_free_all_rx_resources(adapter); | |
5390 | ||
5eba3699 | 5391 | ixgbe_release_hw_control(adapter); |
9a799d71 AK |
5392 | |
5393 | return 0; | |
5394 | } | |
5395 | ||
b3c8b4ba AD |
5396 | #ifdef CONFIG_PM |
5397 | static int ixgbe_resume(struct pci_dev *pdev) | |
5398 | { | |
c60fbb00 AD |
5399 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
5400 | struct net_device *netdev = adapter->netdev; | |
b3c8b4ba AD |
5401 | u32 err; |
5402 | ||
5403 | pci_set_power_state(pdev, PCI_D0); | |
5404 | pci_restore_state(pdev); | |
656ab817 DS |
5405 | /* |
5406 | * pci_restore_state clears dev->state_saved so call | |
5407 | * pci_save_state to restore it. | |
5408 | */ | |
5409 | pci_save_state(pdev); | |
9ce77666 | 5410 | |
5411 | err = pci_enable_device_mem(pdev); | |
b3c8b4ba | 5412 | if (err) { |
849c4542 | 5413 | e_dev_err("Cannot enable PCI device from suspend\n"); |
b3c8b4ba AD |
5414 | return err; |
5415 | } | |
5416 | pci_set_master(pdev); | |
5417 | ||
dd4d8ca6 | 5418 | pci_wake_from_d3(pdev, false); |
b3c8b4ba AD |
5419 | |
5420 | err = ixgbe_init_interrupt_scheme(adapter); | |
5421 | if (err) { | |
849c4542 | 5422 | e_dev_err("Cannot initialize interrupts for device\n"); |
b3c8b4ba AD |
5423 | return err; |
5424 | } | |
5425 | ||
b3c8b4ba AD |
5426 | ixgbe_reset(adapter); |
5427 | ||
495dce12 WJP |
5428 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); |
5429 | ||
b3c8b4ba | 5430 | if (netif_running(netdev)) { |
c60fbb00 | 5431 | err = ixgbe_open(netdev); |
b3c8b4ba AD |
5432 | if (err) |
5433 | return err; | |
5434 | } | |
5435 | ||
5436 | netif_device_attach(netdev); | |
5437 | ||
5438 | return 0; | |
5439 | } | |
b3c8b4ba | 5440 | #endif /* CONFIG_PM */ |
9d8d05ae RW |
5441 | |
5442 | static int __ixgbe_shutdown(struct pci_dev *pdev, bool *enable_wake) | |
b3c8b4ba | 5443 | { |
c60fbb00 AD |
5444 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
5445 | struct net_device *netdev = adapter->netdev; | |
e8e26350 PW |
5446 | struct ixgbe_hw *hw = &adapter->hw; |
5447 | u32 ctrl, fctrl; | |
5448 | u32 wufc = adapter->wol; | |
b3c8b4ba AD |
5449 | #ifdef CONFIG_PM |
5450 | int retval = 0; | |
5451 | #endif | |
5452 | ||
5453 | netif_device_detach(netdev); | |
5454 | ||
5455 | if (netif_running(netdev)) { | |
5456 | ixgbe_down(adapter); | |
5457 | ixgbe_free_irq(adapter); | |
5458 | ixgbe_free_all_tx_resources(adapter); | |
5459 | ixgbe_free_all_rx_resources(adapter); | |
5460 | } | |
b3c8b4ba | 5461 | |
5f5ae6fc | 5462 | ixgbe_clear_interrupt_scheme(adapter); |
d033d526 JF |
5463 | #ifdef CONFIG_DCB |
5464 | kfree(adapter->ixgbe_ieee_pfc); | |
5465 | kfree(adapter->ixgbe_ieee_ets); | |
5466 | #endif | |
5f5ae6fc | 5467 | |
b3c8b4ba AD |
5468 | #ifdef CONFIG_PM |
5469 | retval = pci_save_state(pdev); | |
5470 | if (retval) | |
5471 | return retval; | |
4df10466 | 5472 | |
b3c8b4ba | 5473 | #endif |
e8e26350 PW |
5474 | if (wufc) { |
5475 | ixgbe_set_rx_mode(netdev); | |
b3c8b4ba | 5476 | |
e8e26350 PW |
5477 | /* turn on all-multi mode if wake on multicast is enabled */ |
5478 | if (wufc & IXGBE_WUFC_MC) { | |
5479 | fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL); | |
5480 | fctrl |= IXGBE_FCTRL_MPE; | |
5481 | IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl); | |
5482 | } | |
5483 | ||
5484 | ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL); | |
5485 | ctrl |= IXGBE_CTRL_GIO_DIS; | |
5486 | IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl); | |
5487 | ||
5488 | IXGBE_WRITE_REG(hw, IXGBE_WUFC, wufc); | |
5489 | } else { | |
5490 | IXGBE_WRITE_REG(hw, IXGBE_WUC, 0); | |
5491 | IXGBE_WRITE_REG(hw, IXGBE_WUFC, 0); | |
5492 | } | |
5493 | ||
bd508178 AD |
5494 | switch (hw->mac.type) { |
5495 | case ixgbe_mac_82598EB: | |
dd4d8ca6 | 5496 | pci_wake_from_d3(pdev, false); |
bd508178 AD |
5497 | break; |
5498 | case ixgbe_mac_82599EB: | |
b93a2226 | 5499 | case ixgbe_mac_X540: |
bd508178 AD |
5500 | pci_wake_from_d3(pdev, !!wufc); |
5501 | break; | |
5502 | default: | |
5503 | break; | |
5504 | } | |
b3c8b4ba | 5505 | |
9d8d05ae RW |
5506 | *enable_wake = !!wufc; |
5507 | ||
b3c8b4ba AD |
5508 | ixgbe_release_hw_control(adapter); |
5509 | ||
5510 | pci_disable_device(pdev); | |
5511 | ||
9d8d05ae RW |
5512 | return 0; |
5513 | } | |
5514 | ||
5515 | #ifdef CONFIG_PM | |
5516 | static int ixgbe_suspend(struct pci_dev *pdev, pm_message_t state) | |
5517 | { | |
5518 | int retval; | |
5519 | bool wake; | |
5520 | ||
5521 | retval = __ixgbe_shutdown(pdev, &wake); | |
5522 | if (retval) | |
5523 | return retval; | |
5524 | ||
5525 | if (wake) { | |
5526 | pci_prepare_to_sleep(pdev); | |
5527 | } else { | |
5528 | pci_wake_from_d3(pdev, false); | |
5529 | pci_set_power_state(pdev, PCI_D3hot); | |
5530 | } | |
b3c8b4ba AD |
5531 | |
5532 | return 0; | |
5533 | } | |
9d8d05ae | 5534 | #endif /* CONFIG_PM */ |
b3c8b4ba AD |
5535 | |
5536 | static void ixgbe_shutdown(struct pci_dev *pdev) | |
5537 | { | |
9d8d05ae RW |
5538 | bool wake; |
5539 | ||
5540 | __ixgbe_shutdown(pdev, &wake); | |
5541 | ||
5542 | if (system_state == SYSTEM_POWER_OFF) { | |
5543 | pci_wake_from_d3(pdev, wake); | |
5544 | pci_set_power_state(pdev, PCI_D3hot); | |
5545 | } | |
b3c8b4ba AD |
5546 | } |
5547 | ||
9a799d71 AK |
5548 | /** |
5549 | * ixgbe_update_stats - Update the board statistics counters. | |
5550 | * @adapter: board private structure | |
5551 | **/ | |
5552 | void ixgbe_update_stats(struct ixgbe_adapter *adapter) | |
5553 | { | |
2d86f139 | 5554 | struct net_device *netdev = adapter->netdev; |
9a799d71 | 5555 | struct ixgbe_hw *hw = &adapter->hw; |
5b7da515 | 5556 | struct ixgbe_hw_stats *hwstats = &adapter->stats; |
6f11eef7 AV |
5557 | u64 total_mpc = 0; |
5558 | u32 i, missed_rx = 0, mpc, bprc, lxon, lxoff, xon_off_tot; | |
5b7da515 AD |
5559 | u64 non_eop_descs = 0, restart_queue = 0, tx_busy = 0; |
5560 | u64 alloc_rx_page_failed = 0, alloc_rx_buff_failed = 0; | |
5561 | u64 bytes = 0, packets = 0; | |
7b859ebc AH |
5562 | #ifdef IXGBE_FCOE |
5563 | struct ixgbe_fcoe *fcoe = &adapter->fcoe; | |
5564 | unsigned int cpu; | |
5565 | u64 fcoe_noddp_counts_sum = 0, fcoe_noddp_ext_buff_counts_sum = 0; | |
5566 | #endif /* IXGBE_FCOE */ | |
9a799d71 | 5567 | |
d08935c2 DS |
5568 | if (test_bit(__IXGBE_DOWN, &adapter->state) || |
5569 | test_bit(__IXGBE_RESETTING, &adapter->state)) | |
5570 | return; | |
5571 | ||
94b982b2 | 5572 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) { |
f8212f97 | 5573 | u64 rsc_count = 0; |
94b982b2 | 5574 | u64 rsc_flush = 0; |
d51019a4 PW |
5575 | for (i = 0; i < 16; i++) |
5576 | adapter->hw_rx_no_dma_resources += | |
7ca647bd | 5577 | IXGBE_READ_REG(hw, IXGBE_QPRDC(i)); |
94b982b2 | 5578 | for (i = 0; i < adapter->num_rx_queues; i++) { |
5b7da515 AD |
5579 | rsc_count += adapter->rx_ring[i]->rx_stats.rsc_count; |
5580 | rsc_flush += adapter->rx_ring[i]->rx_stats.rsc_flush; | |
94b982b2 MC |
5581 | } |
5582 | adapter->rsc_total_count = rsc_count; | |
5583 | adapter->rsc_total_flush = rsc_flush; | |
d51019a4 PW |
5584 | } |
5585 | ||
5b7da515 AD |
5586 | for (i = 0; i < adapter->num_rx_queues; i++) { |
5587 | struct ixgbe_ring *rx_ring = adapter->rx_ring[i]; | |
5588 | non_eop_descs += rx_ring->rx_stats.non_eop_descs; | |
5589 | alloc_rx_page_failed += rx_ring->rx_stats.alloc_rx_page_failed; | |
5590 | alloc_rx_buff_failed += rx_ring->rx_stats.alloc_rx_buff_failed; | |
5591 | bytes += rx_ring->stats.bytes; | |
5592 | packets += rx_ring->stats.packets; | |
5593 | } | |
5594 | adapter->non_eop_descs = non_eop_descs; | |
5595 | adapter->alloc_rx_page_failed = alloc_rx_page_failed; | |
5596 | adapter->alloc_rx_buff_failed = alloc_rx_buff_failed; | |
5597 | netdev->stats.rx_bytes = bytes; | |
5598 | netdev->stats.rx_packets = packets; | |
5599 | ||
5600 | bytes = 0; | |
5601 | packets = 0; | |
7ca3bc58 | 5602 | /* gather some stats to the adapter struct that are per queue */ |
5b7da515 AD |
5603 | for (i = 0; i < adapter->num_tx_queues; i++) { |
5604 | struct ixgbe_ring *tx_ring = adapter->tx_ring[i]; | |
5605 | restart_queue += tx_ring->tx_stats.restart_queue; | |
5606 | tx_busy += tx_ring->tx_stats.tx_busy; | |
5607 | bytes += tx_ring->stats.bytes; | |
5608 | packets += tx_ring->stats.packets; | |
5609 | } | |
eb985f09 | 5610 | adapter->restart_queue = restart_queue; |
5b7da515 AD |
5611 | adapter->tx_busy = tx_busy; |
5612 | netdev->stats.tx_bytes = bytes; | |
5613 | netdev->stats.tx_packets = packets; | |
7ca3bc58 | 5614 | |
7ca647bd | 5615 | hwstats->crcerrs += IXGBE_READ_REG(hw, IXGBE_CRCERRS); |
1a70db4b ET |
5616 | |
5617 | /* 8 register reads */ | |
6f11eef7 AV |
5618 | for (i = 0; i < 8; i++) { |
5619 | /* for packet buffers not used, the register should read 0 */ | |
5620 | mpc = IXGBE_READ_REG(hw, IXGBE_MPC(i)); | |
5621 | missed_rx += mpc; | |
7ca647bd JP |
5622 | hwstats->mpc[i] += mpc; |
5623 | total_mpc += hwstats->mpc[i]; | |
1a70db4b ET |
5624 | hwstats->pxontxc[i] += IXGBE_READ_REG(hw, IXGBE_PXONTXC(i)); |
5625 | hwstats->pxofftxc[i] += IXGBE_READ_REG(hw, IXGBE_PXOFFTXC(i)); | |
bd508178 AD |
5626 | switch (hw->mac.type) { |
5627 | case ixgbe_mac_82598EB: | |
1a70db4b ET |
5628 | hwstats->rnbc[i] += IXGBE_READ_REG(hw, IXGBE_RNBC(i)); |
5629 | hwstats->qbtc[i] += IXGBE_READ_REG(hw, IXGBE_QBTC(i)); | |
5630 | hwstats->qbrc[i] += IXGBE_READ_REG(hw, IXGBE_QBRC(i)); | |
7ca647bd JP |
5631 | hwstats->pxonrxc[i] += |
5632 | IXGBE_READ_REG(hw, IXGBE_PXONRXC(i)); | |
bd508178 AD |
5633 | break; |
5634 | case ixgbe_mac_82599EB: | |
b93a2226 | 5635 | case ixgbe_mac_X540: |
bd508178 AD |
5636 | hwstats->pxonrxc[i] += |
5637 | IXGBE_READ_REG(hw, IXGBE_PXONRXCNT(i)); | |
bd508178 AD |
5638 | break; |
5639 | default: | |
5640 | break; | |
e8e26350 | 5641 | } |
6f11eef7 | 5642 | } |
1a70db4b ET |
5643 | |
5644 | /*16 register reads */ | |
5645 | for (i = 0; i < 16; i++) { | |
5646 | hwstats->qptc[i] += IXGBE_READ_REG(hw, IXGBE_QPTC(i)); | |
5647 | hwstats->qprc[i] += IXGBE_READ_REG(hw, IXGBE_QPRC(i)); | |
5648 | if ((hw->mac.type == ixgbe_mac_82599EB) || | |
5649 | (hw->mac.type == ixgbe_mac_X540)) { | |
5650 | hwstats->qbtc[i] += IXGBE_READ_REG(hw, IXGBE_QBTC_L(i)); | |
5651 | IXGBE_READ_REG(hw, IXGBE_QBTC_H(i)); /* to clear */ | |
5652 | hwstats->qbrc[i] += IXGBE_READ_REG(hw, IXGBE_QBRC_L(i)); | |
5653 | IXGBE_READ_REG(hw, IXGBE_QBRC_H(i)); /* to clear */ | |
5654 | } | |
5655 | } | |
5656 | ||
7ca647bd | 5657 | hwstats->gprc += IXGBE_READ_REG(hw, IXGBE_GPRC); |
6f11eef7 | 5658 | /* work around hardware counting issue */ |
7ca647bd | 5659 | hwstats->gprc -= missed_rx; |
6f11eef7 | 5660 | |
c84d324c JF |
5661 | ixgbe_update_xoff_received(adapter); |
5662 | ||
6f11eef7 | 5663 | /* 82598 hardware only has a 32 bit counter in the high register */ |
bd508178 AD |
5664 | switch (hw->mac.type) { |
5665 | case ixgbe_mac_82598EB: | |
5666 | hwstats->lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXC); | |
bd508178 AD |
5667 | hwstats->gorc += IXGBE_READ_REG(hw, IXGBE_GORCH); |
5668 | hwstats->gotc += IXGBE_READ_REG(hw, IXGBE_GOTCH); | |
5669 | hwstats->tor += IXGBE_READ_REG(hw, IXGBE_TORH); | |
5670 | break; | |
b93a2226 | 5671 | case ixgbe_mac_X540: |
58f6bcf9 ET |
5672 | /* OS2BMC stats are X540 only*/ |
5673 | hwstats->o2bgptc += IXGBE_READ_REG(hw, IXGBE_O2BGPTC); | |
5674 | hwstats->o2bspc += IXGBE_READ_REG(hw, IXGBE_O2BSPC); | |
5675 | hwstats->b2ospc += IXGBE_READ_REG(hw, IXGBE_B2OSPC); | |
5676 | hwstats->b2ogprc += IXGBE_READ_REG(hw, IXGBE_B2OGPRC); | |
5677 | case ixgbe_mac_82599EB: | |
7ca647bd | 5678 | hwstats->gorc += IXGBE_READ_REG(hw, IXGBE_GORCL); |
bd508178 | 5679 | IXGBE_READ_REG(hw, IXGBE_GORCH); /* to clear */ |
7ca647bd | 5680 | hwstats->gotc += IXGBE_READ_REG(hw, IXGBE_GOTCL); |
bd508178 | 5681 | IXGBE_READ_REG(hw, IXGBE_GOTCH); /* to clear */ |
7ca647bd | 5682 | hwstats->tor += IXGBE_READ_REG(hw, IXGBE_TORL); |
bd508178 | 5683 | IXGBE_READ_REG(hw, IXGBE_TORH); /* to clear */ |
7ca647bd | 5684 | hwstats->lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXCNT); |
7ca647bd JP |
5685 | hwstats->fdirmatch += IXGBE_READ_REG(hw, IXGBE_FDIRMATCH); |
5686 | hwstats->fdirmiss += IXGBE_READ_REG(hw, IXGBE_FDIRMISS); | |
6d45522c | 5687 | #ifdef IXGBE_FCOE |
7ca647bd JP |
5688 | hwstats->fccrc += IXGBE_READ_REG(hw, IXGBE_FCCRC); |
5689 | hwstats->fcoerpdc += IXGBE_READ_REG(hw, IXGBE_FCOERPDC); | |
5690 | hwstats->fcoeprc += IXGBE_READ_REG(hw, IXGBE_FCOEPRC); | |
5691 | hwstats->fcoeptc += IXGBE_READ_REG(hw, IXGBE_FCOEPTC); | |
5692 | hwstats->fcoedwrc += IXGBE_READ_REG(hw, IXGBE_FCOEDWRC); | |
5693 | hwstats->fcoedwtc += IXGBE_READ_REG(hw, IXGBE_FCOEDWTC); | |
7b859ebc AH |
5694 | /* Add up per cpu counters for total ddp aloc fail */ |
5695 | if (fcoe->pcpu_noddp && fcoe->pcpu_noddp_ext_buff) { | |
5696 | for_each_possible_cpu(cpu) { | |
5697 | fcoe_noddp_counts_sum += | |
5698 | *per_cpu_ptr(fcoe->pcpu_noddp, cpu); | |
5699 | fcoe_noddp_ext_buff_counts_sum += | |
5700 | *per_cpu_ptr(fcoe-> | |
5701 | pcpu_noddp_ext_buff, cpu); | |
5702 | } | |
5703 | } | |
5704 | hwstats->fcoe_noddp = fcoe_noddp_counts_sum; | |
5705 | hwstats->fcoe_noddp_ext_buff = fcoe_noddp_ext_buff_counts_sum; | |
6d45522c | 5706 | #endif /* IXGBE_FCOE */ |
bd508178 AD |
5707 | break; |
5708 | default: | |
5709 | break; | |
e8e26350 | 5710 | } |
9a799d71 | 5711 | bprc = IXGBE_READ_REG(hw, IXGBE_BPRC); |
7ca647bd JP |
5712 | hwstats->bprc += bprc; |
5713 | hwstats->mprc += IXGBE_READ_REG(hw, IXGBE_MPRC); | |
e8e26350 | 5714 | if (hw->mac.type == ixgbe_mac_82598EB) |
7ca647bd JP |
5715 | hwstats->mprc -= bprc; |
5716 | hwstats->roc += IXGBE_READ_REG(hw, IXGBE_ROC); | |
5717 | hwstats->prc64 += IXGBE_READ_REG(hw, IXGBE_PRC64); | |
5718 | hwstats->prc127 += IXGBE_READ_REG(hw, IXGBE_PRC127); | |
5719 | hwstats->prc255 += IXGBE_READ_REG(hw, IXGBE_PRC255); | |
5720 | hwstats->prc511 += IXGBE_READ_REG(hw, IXGBE_PRC511); | |
5721 | hwstats->prc1023 += IXGBE_READ_REG(hw, IXGBE_PRC1023); | |
5722 | hwstats->prc1522 += IXGBE_READ_REG(hw, IXGBE_PRC1522); | |
5723 | hwstats->rlec += IXGBE_READ_REG(hw, IXGBE_RLEC); | |
6f11eef7 | 5724 | lxon = IXGBE_READ_REG(hw, IXGBE_LXONTXC); |
7ca647bd | 5725 | hwstats->lxontxc += lxon; |
6f11eef7 | 5726 | lxoff = IXGBE_READ_REG(hw, IXGBE_LXOFFTXC); |
7ca647bd | 5727 | hwstats->lxofftxc += lxoff; |
7ca647bd JP |
5728 | hwstats->gptc += IXGBE_READ_REG(hw, IXGBE_GPTC); |
5729 | hwstats->mptc += IXGBE_READ_REG(hw, IXGBE_MPTC); | |
6f11eef7 AV |
5730 | /* |
5731 | * 82598 errata - tx of flow control packets is included in tx counters | |
5732 | */ | |
5733 | xon_off_tot = lxon + lxoff; | |
7ca647bd JP |
5734 | hwstats->gptc -= xon_off_tot; |
5735 | hwstats->mptc -= xon_off_tot; | |
5736 | hwstats->gotc -= (xon_off_tot * (ETH_ZLEN + ETH_FCS_LEN)); | |
5737 | hwstats->ruc += IXGBE_READ_REG(hw, IXGBE_RUC); | |
5738 | hwstats->rfc += IXGBE_READ_REG(hw, IXGBE_RFC); | |
5739 | hwstats->rjc += IXGBE_READ_REG(hw, IXGBE_RJC); | |
5740 | hwstats->tpr += IXGBE_READ_REG(hw, IXGBE_TPR); | |
5741 | hwstats->ptc64 += IXGBE_READ_REG(hw, IXGBE_PTC64); | |
5742 | hwstats->ptc64 -= xon_off_tot; | |
5743 | hwstats->ptc127 += IXGBE_READ_REG(hw, IXGBE_PTC127); | |
5744 | hwstats->ptc255 += IXGBE_READ_REG(hw, IXGBE_PTC255); | |
5745 | hwstats->ptc511 += IXGBE_READ_REG(hw, IXGBE_PTC511); | |
5746 | hwstats->ptc1023 += IXGBE_READ_REG(hw, IXGBE_PTC1023); | |
5747 | hwstats->ptc1522 += IXGBE_READ_REG(hw, IXGBE_PTC1522); | |
5748 | hwstats->bptc += IXGBE_READ_REG(hw, IXGBE_BPTC); | |
9a799d71 AK |
5749 | |
5750 | /* Fill out the OS statistics structure */ | |
7ca647bd | 5751 | netdev->stats.multicast = hwstats->mprc; |
9a799d71 AK |
5752 | |
5753 | /* Rx Errors */ | |
7ca647bd | 5754 | netdev->stats.rx_errors = hwstats->crcerrs + hwstats->rlec; |
2d86f139 | 5755 | netdev->stats.rx_dropped = 0; |
7ca647bd JP |
5756 | netdev->stats.rx_length_errors = hwstats->rlec; |
5757 | netdev->stats.rx_crc_errors = hwstats->crcerrs; | |
2d86f139 | 5758 | netdev->stats.rx_missed_errors = total_mpc; |
9a799d71 AK |
5759 | } |
5760 | ||
5761 | /** | |
d034acf1 AD |
5762 | * ixgbe_fdir_reinit_subtask - worker thread to reinit FDIR filter table |
5763 | * @adapter - pointer to the device adapter structure | |
9a799d71 | 5764 | **/ |
d034acf1 | 5765 | static void ixgbe_fdir_reinit_subtask(struct ixgbe_adapter *adapter) |
9a799d71 | 5766 | { |
cf8280ee | 5767 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a | 5768 | int i; |
cf8280ee | 5769 | |
d034acf1 AD |
5770 | if (!(adapter->flags2 & IXGBE_FLAG2_FDIR_REQUIRES_REINIT)) |
5771 | return; | |
5772 | ||
5773 | adapter->flags2 &= ~IXGBE_FLAG2_FDIR_REQUIRES_REINIT; | |
22d5a71b | 5774 | |
d034acf1 | 5775 | /* if interface is down do nothing */ |
fe49f04a | 5776 | if (test_bit(__IXGBE_DOWN, &adapter->state)) |
d034acf1 AD |
5777 | return; |
5778 | ||
5779 | /* do nothing if we are not using signature filters */ | |
5780 | if (!(adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE)) | |
5781 | return; | |
5782 | ||
5783 | adapter->fdir_overflow++; | |
5784 | ||
93c52dd0 AD |
5785 | if (ixgbe_reinit_fdir_tables_82599(hw) == 0) { |
5786 | for (i = 0; i < adapter->num_tx_queues; i++) | |
5787 | set_bit(__IXGBE_TX_FDIR_INIT_DONE, | |
f0f9778d | 5788 | &(adapter->tx_ring[i]->state)); |
d034acf1 AD |
5789 | /* re-enable flow director interrupts */ |
5790 | IXGBE_WRITE_REG(hw, IXGBE_EIMS, IXGBE_EIMS_FLOW_DIR); | |
93c52dd0 AD |
5791 | } else { |
5792 | e_err(probe, "failed to finish FDIR re-initialization, " | |
5793 | "ignored adding FDIR ATR filters\n"); | |
5794 | } | |
93c52dd0 AD |
5795 | } |
5796 | ||
5797 | /** | |
5798 | * ixgbe_check_hang_subtask - check for hung queues and dropped interrupts | |
5799 | * @adapter - pointer to the device adapter structure | |
5800 | * | |
5801 | * This function serves two purposes. First it strobes the interrupt lines | |
52f33af8 | 5802 | * in order to make certain interrupts are occurring. Secondly it sets the |
93c52dd0 | 5803 | * bits needed to check for TX hangs. As a result we should immediately |
52f33af8 | 5804 | * determine if a hang has occurred. |
93c52dd0 AD |
5805 | */ |
5806 | static void ixgbe_check_hang_subtask(struct ixgbe_adapter *adapter) | |
9a799d71 | 5807 | { |
cf8280ee | 5808 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a AD |
5809 | u64 eics = 0; |
5810 | int i; | |
cf8280ee | 5811 | |
93c52dd0 AD |
5812 | /* If we're down or resetting, just bail */ |
5813 | if (test_bit(__IXGBE_DOWN, &adapter->state) || | |
5814 | test_bit(__IXGBE_RESETTING, &adapter->state)) | |
5815 | return; | |
22d5a71b | 5816 | |
93c52dd0 AD |
5817 | /* Force detection of hung controller */ |
5818 | if (netif_carrier_ok(adapter->netdev)) { | |
5819 | for (i = 0; i < adapter->num_tx_queues; i++) | |
5820 | set_check_for_tx_hang(adapter->tx_ring[i]); | |
5821 | } | |
22d5a71b | 5822 | |
fe49f04a AD |
5823 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) { |
5824 | /* | |
5825 | * for legacy and MSI interrupts don't set any bits | |
5826 | * that are enabled for EIAM, because this operation | |
5827 | * would set *both* EIMS and EICS for any bit in EIAM | |
5828 | */ | |
5829 | IXGBE_WRITE_REG(hw, IXGBE_EICS, | |
5830 | (IXGBE_EICS_TCP_TIMER | IXGBE_EICS_OTHER)); | |
93c52dd0 AD |
5831 | } else { |
5832 | /* get one bit for every active tx/rx interrupt vector */ | |
5833 | for (i = 0; i < adapter->num_msix_vectors - NON_Q_VECTORS; i++) { | |
5834 | struct ixgbe_q_vector *qv = adapter->q_vector[i]; | |
efe3d3c8 | 5835 | if (qv->rx.ring || qv->tx.ring) |
93c52dd0 AD |
5836 | eics |= ((u64)1 << i); |
5837 | } | |
cf8280ee | 5838 | } |
9a799d71 | 5839 | |
93c52dd0 | 5840 | /* Cause software interrupt to ensure rings are cleaned */ |
fe49f04a AD |
5841 | ixgbe_irq_rearm_queues(adapter, eics); |
5842 | ||
cf8280ee JB |
5843 | } |
5844 | ||
e8e26350 | 5845 | /** |
93c52dd0 AD |
5846 | * ixgbe_watchdog_update_link - update the link status |
5847 | * @adapter - pointer to the device adapter structure | |
5848 | * @link_speed - pointer to a u32 to store the link_speed | |
e8e26350 | 5849 | **/ |
93c52dd0 | 5850 | static void ixgbe_watchdog_update_link(struct ixgbe_adapter *adapter) |
e8e26350 | 5851 | { |
e8e26350 | 5852 | struct ixgbe_hw *hw = &adapter->hw; |
93c52dd0 AD |
5853 | u32 link_speed = adapter->link_speed; |
5854 | bool link_up = adapter->link_up; | |
c4cf55e5 | 5855 | int i; |
e8e26350 | 5856 | |
93c52dd0 AD |
5857 | if (!(adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE)) |
5858 | return; | |
5859 | ||
5860 | if (hw->mac.ops.check_link) { | |
5861 | hw->mac.ops.check_link(hw, &link_speed, &link_up, false); | |
c4cf55e5 | 5862 | } else { |
93c52dd0 AD |
5863 | /* always assume link is up, if no check link function */ |
5864 | link_speed = IXGBE_LINK_SPEED_10GB_FULL; | |
5865 | link_up = true; | |
c4cf55e5 | 5866 | } |
93c52dd0 AD |
5867 | if (link_up) { |
5868 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { | |
5869 | for (i = 0; i < MAX_TRAFFIC_CLASS; i++) | |
5870 | hw->mac.ops.fc_enable(hw, i); | |
5871 | } else { | |
5872 | hw->mac.ops.fc_enable(hw, 0); | |
5873 | } | |
5874 | } | |
5875 | ||
5876 | if (link_up || | |
5877 | time_after(jiffies, (adapter->link_check_timeout + | |
5878 | IXGBE_TRY_LINK_TIMEOUT))) { | |
5879 | adapter->flags &= ~IXGBE_FLAG_NEED_LINK_UPDATE; | |
5880 | IXGBE_WRITE_REG(hw, IXGBE_EIMS, IXGBE_EIMC_LSC); | |
5881 | IXGBE_WRITE_FLUSH(hw); | |
5882 | } | |
5883 | ||
5884 | adapter->link_up = link_up; | |
5885 | adapter->link_speed = link_speed; | |
e8e26350 PW |
5886 | } |
5887 | ||
5888 | /** | |
93c52dd0 AD |
5889 | * ixgbe_watchdog_link_is_up - update netif_carrier status and |
5890 | * print link up message | |
5891 | * @adapter - pointer to the device adapter structure | |
e8e26350 | 5892 | **/ |
93c52dd0 | 5893 | static void ixgbe_watchdog_link_is_up(struct ixgbe_adapter *adapter) |
e8e26350 | 5894 | { |
93c52dd0 | 5895 | struct net_device *netdev = adapter->netdev; |
e8e26350 | 5896 | struct ixgbe_hw *hw = &adapter->hw; |
93c52dd0 AD |
5897 | u32 link_speed = adapter->link_speed; |
5898 | bool flow_rx, flow_tx; | |
e8e26350 | 5899 | |
93c52dd0 AD |
5900 | /* only continue if link was previously down */ |
5901 | if (netif_carrier_ok(netdev)) | |
a985b6c3 | 5902 | return; |
63d6e1d8 | 5903 | |
93c52dd0 | 5904 | adapter->flags2 &= ~IXGBE_FLAG2_SEARCH_FOR_SFP; |
63d6e1d8 | 5905 | |
93c52dd0 AD |
5906 | switch (hw->mac.type) { |
5907 | case ixgbe_mac_82598EB: { | |
5908 | u32 frctl = IXGBE_READ_REG(hw, IXGBE_FCTRL); | |
5909 | u32 rmcs = IXGBE_READ_REG(hw, IXGBE_RMCS); | |
5910 | flow_rx = !!(frctl & IXGBE_FCTRL_RFCE); | |
5911 | flow_tx = !!(rmcs & IXGBE_RMCS_TFCE_802_3X); | |
5912 | } | |
5913 | break; | |
5914 | case ixgbe_mac_X540: | |
5915 | case ixgbe_mac_82599EB: { | |
5916 | u32 mflcn = IXGBE_READ_REG(hw, IXGBE_MFLCN); | |
5917 | u32 fccfg = IXGBE_READ_REG(hw, IXGBE_FCCFG); | |
5918 | flow_rx = !!(mflcn & IXGBE_MFLCN_RFCE); | |
5919 | flow_tx = !!(fccfg & IXGBE_FCCFG_TFCE_802_3X); | |
5920 | } | |
5921 | break; | |
5922 | default: | |
5923 | flow_tx = false; | |
5924 | flow_rx = false; | |
5925 | break; | |
e8e26350 | 5926 | } |
93c52dd0 AD |
5927 | e_info(drv, "NIC Link is Up %s, Flow Control: %s\n", |
5928 | (link_speed == IXGBE_LINK_SPEED_10GB_FULL ? | |
5929 | "10 Gbps" : | |
5930 | (link_speed == IXGBE_LINK_SPEED_1GB_FULL ? | |
5931 | "1 Gbps" : | |
5932 | (link_speed == IXGBE_LINK_SPEED_100_FULL ? | |
5933 | "100 Mbps" : | |
5934 | "unknown speed"))), | |
5935 | ((flow_rx && flow_tx) ? "RX/TX" : | |
5936 | (flow_rx ? "RX" : | |
5937 | (flow_tx ? "TX" : "None")))); | |
e8e26350 | 5938 | |
93c52dd0 | 5939 | netif_carrier_on(netdev); |
93c52dd0 | 5940 | ixgbe_check_vf_rate_limit(adapter); |
e8e26350 PW |
5941 | } |
5942 | ||
c4cf55e5 | 5943 | /** |
93c52dd0 AD |
5944 | * ixgbe_watchdog_link_is_down - update netif_carrier status and |
5945 | * print link down message | |
5946 | * @adapter - pointer to the adapter structure | |
c4cf55e5 | 5947 | **/ |
93c52dd0 | 5948 | static void ixgbe_watchdog_link_is_down(struct ixgbe_adapter* adapter) |
c4cf55e5 | 5949 | { |
cf8280ee | 5950 | struct net_device *netdev = adapter->netdev; |
c4cf55e5 | 5951 | struct ixgbe_hw *hw = &adapter->hw; |
10eec955 | 5952 | |
93c52dd0 AD |
5953 | adapter->link_up = false; |
5954 | adapter->link_speed = 0; | |
cf8280ee | 5955 | |
93c52dd0 AD |
5956 | /* only continue if link was up previously */ |
5957 | if (!netif_carrier_ok(netdev)) | |
5958 | return; | |
264857b8 | 5959 | |
93c52dd0 AD |
5960 | /* poll for SFP+ cable when link is down */ |
5961 | if (ixgbe_is_sfp(hw) && hw->mac.type == ixgbe_mac_82598EB) | |
5962 | adapter->flags2 |= IXGBE_FLAG2_SEARCH_FOR_SFP; | |
9a799d71 | 5963 | |
93c52dd0 AD |
5964 | e_info(drv, "NIC Link is Down\n"); |
5965 | netif_carrier_off(netdev); | |
5966 | } | |
e8e26350 | 5967 | |
93c52dd0 AD |
5968 | /** |
5969 | * ixgbe_watchdog_flush_tx - flush queues on link down | |
5970 | * @adapter - pointer to the device adapter structure | |
5971 | **/ | |
5972 | static void ixgbe_watchdog_flush_tx(struct ixgbe_adapter *adapter) | |
5973 | { | |
c4cf55e5 | 5974 | int i; |
93c52dd0 | 5975 | int some_tx_pending = 0; |
c4cf55e5 | 5976 | |
93c52dd0 | 5977 | if (!netif_carrier_ok(adapter->netdev)) { |
bc59fcda | 5978 | for (i = 0; i < adapter->num_tx_queues; i++) { |
93c52dd0 | 5979 | struct ixgbe_ring *tx_ring = adapter->tx_ring[i]; |
bc59fcda NS |
5980 | if (tx_ring->next_to_use != tx_ring->next_to_clean) { |
5981 | some_tx_pending = 1; | |
5982 | break; | |
5983 | } | |
5984 | } | |
5985 | ||
5986 | if (some_tx_pending) { | |
5987 | /* We've lost link, so the controller stops DMA, | |
5988 | * but we've got queued Tx work that's never going | |
5989 | * to get done, so reset controller to flush Tx. | |
5990 | * (Do the reset outside of interrupt context). | |
5991 | */ | |
c83c6cbd | 5992 | adapter->flags2 |= IXGBE_FLAG2_RESET_REQUESTED; |
bc59fcda | 5993 | } |
c4cf55e5 | 5994 | } |
c4cf55e5 PWJ |
5995 | } |
5996 | ||
a985b6c3 GR |
5997 | static void ixgbe_spoof_check(struct ixgbe_adapter *adapter) |
5998 | { | |
5999 | u32 ssvpc; | |
6000 | ||
6001 | /* Do not perform spoof check for 82598 */ | |
6002 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) | |
6003 | return; | |
6004 | ||
6005 | ssvpc = IXGBE_READ_REG(&adapter->hw, IXGBE_SSVPC); | |
6006 | ||
6007 | /* | |
6008 | * ssvpc register is cleared on read, if zero then no | |
6009 | * spoofed packets in the last interval. | |
6010 | */ | |
6011 | if (!ssvpc) | |
6012 | return; | |
6013 | ||
6014 | e_warn(drv, "%d Spoofed packets detected\n", ssvpc); | |
6015 | } | |
6016 | ||
93c52dd0 AD |
6017 | /** |
6018 | * ixgbe_watchdog_subtask - check and bring link up | |
6019 | * @adapter - pointer to the device adapter structure | |
6020 | **/ | |
6021 | static void ixgbe_watchdog_subtask(struct ixgbe_adapter *adapter) | |
6022 | { | |
6023 | /* if interface is down do nothing */ | |
7edebf9a ET |
6024 | if (test_bit(__IXGBE_DOWN, &adapter->state) || |
6025 | test_bit(__IXGBE_RESETTING, &adapter->state)) | |
93c52dd0 AD |
6026 | return; |
6027 | ||
6028 | ixgbe_watchdog_update_link(adapter); | |
6029 | ||
6030 | if (adapter->link_up) | |
6031 | ixgbe_watchdog_link_is_up(adapter); | |
6032 | else | |
6033 | ixgbe_watchdog_link_is_down(adapter); | |
bc59fcda | 6034 | |
a985b6c3 | 6035 | ixgbe_spoof_check(adapter); |
9a799d71 | 6036 | ixgbe_update_stats(adapter); |
93c52dd0 AD |
6037 | |
6038 | ixgbe_watchdog_flush_tx(adapter); | |
9a799d71 | 6039 | } |
10eec955 | 6040 | |
cf8280ee | 6041 | /** |
7086400d AD |
6042 | * ixgbe_sfp_detection_subtask - poll for SFP+ cable |
6043 | * @adapter - the ixgbe adapter structure | |
cf8280ee | 6044 | **/ |
7086400d | 6045 | static void ixgbe_sfp_detection_subtask(struct ixgbe_adapter *adapter) |
cf8280ee | 6046 | { |
cf8280ee | 6047 | struct ixgbe_hw *hw = &adapter->hw; |
7086400d | 6048 | s32 err; |
cf8280ee | 6049 | |
7086400d AD |
6050 | /* not searching for SFP so there is nothing to do here */ |
6051 | if (!(adapter->flags2 & IXGBE_FLAG2_SEARCH_FOR_SFP) && | |
6052 | !(adapter->flags2 & IXGBE_FLAG2_SFP_NEEDS_RESET)) | |
6053 | return; | |
10eec955 | 6054 | |
7086400d AD |
6055 | /* someone else is in init, wait until next service event */ |
6056 | if (test_and_set_bit(__IXGBE_IN_SFP_INIT, &adapter->state)) | |
6057 | return; | |
cf8280ee | 6058 | |
7086400d AD |
6059 | err = hw->phy.ops.identify_sfp(hw); |
6060 | if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) | |
6061 | goto sfp_out; | |
264857b8 | 6062 | |
7086400d AD |
6063 | if (err == IXGBE_ERR_SFP_NOT_PRESENT) { |
6064 | /* If no cable is present, then we need to reset | |
6065 | * the next time we find a good cable. */ | |
6066 | adapter->flags2 |= IXGBE_FLAG2_SFP_NEEDS_RESET; | |
cf8280ee | 6067 | } |
9a799d71 | 6068 | |
7086400d AD |
6069 | /* exit on error */ |
6070 | if (err) | |
6071 | goto sfp_out; | |
e8e26350 | 6072 | |
7086400d AD |
6073 | /* exit if reset not needed */ |
6074 | if (!(adapter->flags2 & IXGBE_FLAG2_SFP_NEEDS_RESET)) | |
6075 | goto sfp_out; | |
9a799d71 | 6076 | |
7086400d | 6077 | adapter->flags2 &= ~IXGBE_FLAG2_SFP_NEEDS_RESET; |
bc59fcda | 6078 | |
7086400d AD |
6079 | /* |
6080 | * A module may be identified correctly, but the EEPROM may not have | |
6081 | * support for that module. setup_sfp() will fail in that case, so | |
6082 | * we should not allow that module to load. | |
6083 | */ | |
6084 | if (hw->mac.type == ixgbe_mac_82598EB) | |
6085 | err = hw->phy.ops.reset(hw); | |
6086 | else | |
6087 | err = hw->mac.ops.setup_sfp(hw); | |
6088 | ||
6089 | if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) | |
6090 | goto sfp_out; | |
6091 | ||
6092 | adapter->flags |= IXGBE_FLAG_NEED_LINK_CONFIG; | |
6093 | e_info(probe, "detected SFP+: %d\n", hw->phy.sfp_type); | |
6094 | ||
6095 | sfp_out: | |
6096 | clear_bit(__IXGBE_IN_SFP_INIT, &adapter->state); | |
6097 | ||
6098 | if ((err == IXGBE_ERR_SFP_NOT_SUPPORTED) && | |
6099 | (adapter->netdev->reg_state == NETREG_REGISTERED)) { | |
6100 | e_dev_err("failed to initialize because an unsupported " | |
6101 | "SFP+ module type was detected.\n"); | |
6102 | e_dev_err("Reload the driver after installing a " | |
6103 | "supported module.\n"); | |
6104 | unregister_netdev(adapter->netdev); | |
bc59fcda | 6105 | } |
7086400d | 6106 | } |
bc59fcda | 6107 | |
7086400d AD |
6108 | /** |
6109 | * ixgbe_sfp_link_config_subtask - set up link SFP after module install | |
6110 | * @adapter - the ixgbe adapter structure | |
6111 | **/ | |
6112 | static void ixgbe_sfp_link_config_subtask(struct ixgbe_adapter *adapter) | |
6113 | { | |
6114 | struct ixgbe_hw *hw = &adapter->hw; | |
6115 | u32 autoneg; | |
6116 | bool negotiation; | |
6117 | ||
6118 | if (!(adapter->flags & IXGBE_FLAG_NEED_LINK_CONFIG)) | |
6119 | return; | |
6120 | ||
6121 | /* someone else is in init, wait until next service event */ | |
6122 | if (test_and_set_bit(__IXGBE_IN_SFP_INIT, &adapter->state)) | |
6123 | return; | |
6124 | ||
6125 | adapter->flags &= ~IXGBE_FLAG_NEED_LINK_CONFIG; | |
6126 | ||
6127 | autoneg = hw->phy.autoneg_advertised; | |
6128 | if ((!autoneg) && (hw->mac.ops.get_link_capabilities)) | |
6129 | hw->mac.ops.get_link_capabilities(hw, &autoneg, &negotiation); | |
7086400d AD |
6130 | if (hw->mac.ops.setup_link) |
6131 | hw->mac.ops.setup_link(hw, autoneg, negotiation, true); | |
6132 | ||
6133 | adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; | |
6134 | adapter->link_check_timeout = jiffies; | |
6135 | clear_bit(__IXGBE_IN_SFP_INIT, &adapter->state); | |
6136 | } | |
6137 | ||
83c61fa9 GR |
6138 | #ifdef CONFIG_PCI_IOV |
6139 | static void ixgbe_check_for_bad_vf(struct ixgbe_adapter *adapter) | |
6140 | { | |
6141 | int vf; | |
6142 | struct ixgbe_hw *hw = &adapter->hw; | |
6143 | struct net_device *netdev = adapter->netdev; | |
6144 | u32 gpc; | |
6145 | u32 ciaa, ciad; | |
6146 | ||
6147 | gpc = IXGBE_READ_REG(hw, IXGBE_TXDGPC); | |
6148 | if (gpc) /* If incrementing then no need for the check below */ | |
6149 | return; | |
6150 | /* | |
6151 | * Check to see if a bad DMA write target from an errant or | |
6152 | * malicious VF has caused a PCIe error. If so then we can | |
6153 | * issue a VFLR to the offending VF(s) and then resume without | |
6154 | * requesting a full slot reset. | |
6155 | */ | |
6156 | ||
6157 | for (vf = 0; vf < adapter->num_vfs; vf++) { | |
6158 | ciaa = (vf << 16) | 0x80000000; | |
6159 | /* 32 bit read so align, we really want status at offset 6 */ | |
6160 | ciaa |= PCI_COMMAND; | |
6161 | IXGBE_WRITE_REG(hw, IXGBE_CIAA_82599, ciaa); | |
6162 | ciad = IXGBE_READ_REG(hw, IXGBE_CIAD_82599); | |
6163 | ciaa &= 0x7FFFFFFF; | |
6164 | /* disable debug mode asap after reading data */ | |
6165 | IXGBE_WRITE_REG(hw, IXGBE_CIAA_82599, ciaa); | |
6166 | /* Get the upper 16 bits which will be the PCI status reg */ | |
6167 | ciad >>= 16; | |
6168 | if (ciad & PCI_STATUS_REC_MASTER_ABORT) { | |
6169 | netdev_err(netdev, "VF %d Hung DMA\n", vf); | |
6170 | /* Issue VFLR */ | |
6171 | ciaa = (vf << 16) | 0x80000000; | |
6172 | ciaa |= 0xA8; | |
6173 | IXGBE_WRITE_REG(hw, IXGBE_CIAA_82599, ciaa); | |
6174 | ciad = 0x00008000; /* VFLR */ | |
6175 | IXGBE_WRITE_REG(hw, IXGBE_CIAD_82599, ciad); | |
6176 | ciaa &= 0x7FFFFFFF; | |
6177 | IXGBE_WRITE_REG(hw, IXGBE_CIAA_82599, ciaa); | |
6178 | } | |
6179 | } | |
6180 | } | |
6181 | ||
6182 | #endif | |
7086400d AD |
6183 | /** |
6184 | * ixgbe_service_timer - Timer Call-back | |
6185 | * @data: pointer to adapter cast into an unsigned long | |
6186 | **/ | |
6187 | static void ixgbe_service_timer(unsigned long data) | |
6188 | { | |
6189 | struct ixgbe_adapter *adapter = (struct ixgbe_adapter *)data; | |
6190 | unsigned long next_event_offset; | |
83c61fa9 | 6191 | bool ready = true; |
7086400d | 6192 | |
83c61fa9 GR |
6193 | #ifdef CONFIG_PCI_IOV |
6194 | ready = false; | |
6195 | ||
6196 | /* | |
6197 | * don't bother with SR-IOV VF DMA hang check if there are | |
6198 | * no VFs or the link is down | |
6199 | */ | |
6200 | if (!adapter->num_vfs || | |
6201 | (adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE)) { | |
6202 | ready = true; | |
6203 | goto normal_timer_service; | |
6204 | } | |
6205 | ||
6206 | /* If we have VFs allocated then we must check for DMA hangs */ | |
6207 | ixgbe_check_for_bad_vf(adapter); | |
6208 | next_event_offset = HZ / 50; | |
6209 | adapter->timer_event_accumulator++; | |
6210 | ||
6211 | if (adapter->timer_event_accumulator >= 100) { | |
6212 | ready = true; | |
6213 | adapter->timer_event_accumulator = 0; | |
6214 | } | |
6215 | ||
6216 | goto schedule_event; | |
6217 | ||
6218 | normal_timer_service: | |
6219 | #endif | |
7086400d AD |
6220 | /* poll faster when waiting for link */ |
6221 | if (adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE) | |
6222 | next_event_offset = HZ / 10; | |
6223 | else | |
6224 | next_event_offset = HZ * 2; | |
6225 | ||
83c61fa9 GR |
6226 | #ifdef CONFIG_PCI_IOV |
6227 | schedule_event: | |
6228 | #endif | |
7086400d AD |
6229 | /* Reset the timer */ |
6230 | mod_timer(&adapter->service_timer, next_event_offset + jiffies); | |
6231 | ||
83c61fa9 GR |
6232 | if (ready) |
6233 | ixgbe_service_event_schedule(adapter); | |
7086400d AD |
6234 | } |
6235 | ||
c83c6cbd AD |
6236 | static void ixgbe_reset_subtask(struct ixgbe_adapter *adapter) |
6237 | { | |
6238 | if (!(adapter->flags2 & IXGBE_FLAG2_RESET_REQUESTED)) | |
6239 | return; | |
6240 | ||
6241 | adapter->flags2 &= ~IXGBE_FLAG2_RESET_REQUESTED; | |
6242 | ||
6243 | /* If we're already down or resetting, just bail */ | |
6244 | if (test_bit(__IXGBE_DOWN, &adapter->state) || | |
6245 | test_bit(__IXGBE_RESETTING, &adapter->state)) | |
6246 | return; | |
6247 | ||
6248 | ixgbe_dump(adapter); | |
6249 | netdev_err(adapter->netdev, "Reset adapter\n"); | |
6250 | adapter->tx_timeout_count++; | |
6251 | ||
6252 | ixgbe_reinit_locked(adapter); | |
6253 | } | |
6254 | ||
7086400d AD |
6255 | /** |
6256 | * ixgbe_service_task - manages and runs subtasks | |
6257 | * @work: pointer to work_struct containing our data | |
6258 | **/ | |
6259 | static void ixgbe_service_task(struct work_struct *work) | |
6260 | { | |
6261 | struct ixgbe_adapter *adapter = container_of(work, | |
6262 | struct ixgbe_adapter, | |
6263 | service_task); | |
6264 | ||
c83c6cbd | 6265 | ixgbe_reset_subtask(adapter); |
7086400d AD |
6266 | ixgbe_sfp_detection_subtask(adapter); |
6267 | ixgbe_sfp_link_config_subtask(adapter); | |
f0f9778d | 6268 | ixgbe_check_overtemp_subtask(adapter); |
93c52dd0 | 6269 | ixgbe_watchdog_subtask(adapter); |
d034acf1 | 6270 | ixgbe_fdir_reinit_subtask(adapter); |
93c52dd0 | 6271 | ixgbe_check_hang_subtask(adapter); |
7086400d AD |
6272 | |
6273 | ixgbe_service_event_complete(adapter); | |
9a799d71 AK |
6274 | } |
6275 | ||
897ab156 AD |
6276 | void ixgbe_tx_ctxtdesc(struct ixgbe_ring *tx_ring, u32 vlan_macip_lens, |
6277 | u32 fcoe_sof_eof, u32 type_tucmd, u32 mss_l4len_idx) | |
9a799d71 AK |
6278 | { |
6279 | struct ixgbe_adv_tx_context_desc *context_desc; | |
897ab156 | 6280 | u16 i = tx_ring->next_to_use; |
9a799d71 | 6281 | |
897ab156 | 6282 | context_desc = IXGBE_TX_CTXTDESC_ADV(tx_ring, i); |
9a799d71 | 6283 | |
897ab156 AD |
6284 | i++; |
6285 | tx_ring->next_to_use = (i < tx_ring->count) ? i : 0; | |
9a799d71 | 6286 | |
897ab156 AD |
6287 | /* set bits to identify this as an advanced context descriptor */ |
6288 | type_tucmd |= IXGBE_TXD_CMD_DEXT | IXGBE_ADVTXD_DTYP_CTXT; | |
9a799d71 | 6289 | |
897ab156 AD |
6290 | context_desc->vlan_macip_lens = cpu_to_le32(vlan_macip_lens); |
6291 | context_desc->seqnum_seed = cpu_to_le32(fcoe_sof_eof); | |
6292 | context_desc->type_tucmd_mlhl = cpu_to_le32(type_tucmd); | |
6293 | context_desc->mss_l4len_idx = cpu_to_le32(mss_l4len_idx); | |
6294 | } | |
9a799d71 | 6295 | |
897ab156 AD |
6296 | static int ixgbe_tso(struct ixgbe_ring *tx_ring, struct sk_buff *skb, |
6297 | u32 tx_flags, __be16 protocol, u8 *hdr_len) | |
6298 | { | |
6299 | int err; | |
6300 | u32 vlan_macip_lens, type_tucmd; | |
6301 | u32 mss_l4len_idx, l4len; | |
9a799d71 | 6302 | |
897ab156 AD |
6303 | if (!skb_is_gso(skb)) |
6304 | return 0; | |
9a799d71 | 6305 | |
897ab156 AD |
6306 | if (skb_header_cloned(skb)) { |
6307 | err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC); | |
6308 | if (err) | |
6309 | return err; | |
9a799d71 | 6310 | } |
9a799d71 | 6311 | |
897ab156 AD |
6312 | /* ADV DTYP TUCMD MKRLOC/ISCSIHEDLEN */ |
6313 | type_tucmd = IXGBE_ADVTXD_TUCMD_L4T_TCP; | |
6314 | ||
6315 | if (protocol == __constant_htons(ETH_P_IP)) { | |
6316 | struct iphdr *iph = ip_hdr(skb); | |
6317 | iph->tot_len = 0; | |
6318 | iph->check = 0; | |
6319 | tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, | |
6320 | iph->daddr, 0, | |
6321 | IPPROTO_TCP, | |
6322 | 0); | |
6323 | type_tucmd |= IXGBE_ADVTXD_TUCMD_IPV4; | |
6324 | } else if (skb_is_gso_v6(skb)) { | |
6325 | ipv6_hdr(skb)->payload_len = 0; | |
6326 | tcp_hdr(skb)->check = | |
6327 | ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, | |
6328 | &ipv6_hdr(skb)->daddr, | |
6329 | 0, IPPROTO_TCP, 0); | |
6330 | } | |
6331 | ||
6332 | l4len = tcp_hdrlen(skb); | |
6333 | *hdr_len = skb_transport_offset(skb) + l4len; | |
6334 | ||
6335 | /* mss_l4len_id: use 1 as index for TSO */ | |
6336 | mss_l4len_idx = l4len << IXGBE_ADVTXD_L4LEN_SHIFT; | |
6337 | mss_l4len_idx |= skb_shinfo(skb)->gso_size << IXGBE_ADVTXD_MSS_SHIFT; | |
6338 | mss_l4len_idx |= 1 << IXGBE_ADVTXD_IDX_SHIFT; | |
6339 | ||
6340 | /* vlan_macip_lens: HEADLEN, MACLEN, VLAN tag */ | |
6341 | vlan_macip_lens = skb_network_header_len(skb); | |
6342 | vlan_macip_lens |= skb_network_offset(skb) << IXGBE_ADVTXD_MACLEN_SHIFT; | |
6343 | vlan_macip_lens |= tx_flags & IXGBE_TX_FLAGS_VLAN_MASK; | |
6344 | ||
6345 | ixgbe_tx_ctxtdesc(tx_ring, vlan_macip_lens, 0, type_tucmd, | |
6346 | mss_l4len_idx); | |
6347 | ||
6348 | return 1; | |
6349 | } | |
6350 | ||
6351 | static bool ixgbe_tx_csum(struct ixgbe_ring *tx_ring, | |
6352 | struct sk_buff *skb, u32 tx_flags, | |
6353 | __be16 protocol) | |
7ca647bd | 6354 | { |
897ab156 AD |
6355 | u32 vlan_macip_lens = 0; |
6356 | u32 mss_l4len_idx = 0; | |
6357 | u32 type_tucmd = 0; | |
7ca647bd | 6358 | |
897ab156 | 6359 | if (skb->ip_summed != CHECKSUM_PARTIAL) { |
7f9643fd AD |
6360 | if (!(tx_flags & IXGBE_TX_FLAGS_HW_VLAN) && |
6361 | !(tx_flags & IXGBE_TX_FLAGS_TXSW)) | |
897ab156 AD |
6362 | return false; |
6363 | } else { | |
6364 | u8 l4_hdr = 0; | |
6365 | switch (protocol) { | |
6366 | case __constant_htons(ETH_P_IP): | |
6367 | vlan_macip_lens |= skb_network_header_len(skb); | |
6368 | type_tucmd |= IXGBE_ADVTXD_TUCMD_IPV4; | |
6369 | l4_hdr = ip_hdr(skb)->protocol; | |
7ca647bd | 6370 | break; |
897ab156 AD |
6371 | case __constant_htons(ETH_P_IPV6): |
6372 | vlan_macip_lens |= skb_network_header_len(skb); | |
6373 | l4_hdr = ipv6_hdr(skb)->nexthdr; | |
6374 | break; | |
6375 | default: | |
6376 | if (unlikely(net_ratelimit())) { | |
6377 | dev_warn(tx_ring->dev, | |
6378 | "partial checksum but proto=%x!\n", | |
6379 | skb->protocol); | |
6380 | } | |
7ca647bd JP |
6381 | break; |
6382 | } | |
897ab156 AD |
6383 | |
6384 | switch (l4_hdr) { | |
7ca647bd | 6385 | case IPPROTO_TCP: |
897ab156 AD |
6386 | type_tucmd |= IXGBE_ADVTXD_TUCMD_L4T_TCP; |
6387 | mss_l4len_idx = tcp_hdrlen(skb) << | |
6388 | IXGBE_ADVTXD_L4LEN_SHIFT; | |
7ca647bd JP |
6389 | break; |
6390 | case IPPROTO_SCTP: | |
897ab156 AD |
6391 | type_tucmd |= IXGBE_ADVTXD_TUCMD_L4T_SCTP; |
6392 | mss_l4len_idx = sizeof(struct sctphdr) << | |
6393 | IXGBE_ADVTXD_L4LEN_SHIFT; | |
6394 | break; | |
6395 | case IPPROTO_UDP: | |
6396 | mss_l4len_idx = sizeof(struct udphdr) << | |
6397 | IXGBE_ADVTXD_L4LEN_SHIFT; | |
6398 | break; | |
6399 | default: | |
6400 | if (unlikely(net_ratelimit())) { | |
6401 | dev_warn(tx_ring->dev, | |
6402 | "partial checksum but l4 proto=%x!\n", | |
6403 | skb->protocol); | |
6404 | } | |
7ca647bd JP |
6405 | break; |
6406 | } | |
7ca647bd JP |
6407 | } |
6408 | ||
897ab156 AD |
6409 | vlan_macip_lens |= skb_network_offset(skb) << IXGBE_ADVTXD_MACLEN_SHIFT; |
6410 | vlan_macip_lens |= tx_flags & IXGBE_TX_FLAGS_VLAN_MASK; | |
9a799d71 | 6411 | |
897ab156 AD |
6412 | ixgbe_tx_ctxtdesc(tx_ring, vlan_macip_lens, 0, |
6413 | type_tucmd, mss_l4len_idx); | |
9a799d71 | 6414 | |
897ab156 | 6415 | return (skb->ip_summed == CHECKSUM_PARTIAL); |
9a799d71 AK |
6416 | } |
6417 | ||
d3d00239 | 6418 | static __le32 ixgbe_tx_cmd_type(u32 tx_flags) |
9a799d71 | 6419 | { |
d3d00239 AD |
6420 | /* set type for advanced descriptor with frame checksum insertion */ |
6421 | __le32 cmd_type = cpu_to_le32(IXGBE_ADVTXD_DTYP_DATA | | |
6422 | IXGBE_ADVTXD_DCMD_IFCS | | |
6423 | IXGBE_ADVTXD_DCMD_DEXT); | |
9a799d71 | 6424 | |
d3d00239 | 6425 | /* set HW vlan bit if vlan is present */ |
66f32a8b | 6426 | if (tx_flags & IXGBE_TX_FLAGS_HW_VLAN) |
d3d00239 | 6427 | cmd_type |= cpu_to_le32(IXGBE_ADVTXD_DCMD_VLE); |
9a799d71 | 6428 | |
d3d00239 AD |
6429 | /* set segmentation enable bits for TSO/FSO */ |
6430 | #ifdef IXGBE_FCOE | |
6431 | if ((tx_flags & IXGBE_TX_FLAGS_TSO) || (tx_flags & IXGBE_TX_FLAGS_FSO)) | |
6432 | #else | |
6433 | if (tx_flags & IXGBE_TX_FLAGS_TSO) | |
6434 | #endif | |
6435 | cmd_type |= cpu_to_le32(IXGBE_ADVTXD_DCMD_TSE); | |
eacd73f7 | 6436 | |
d3d00239 AD |
6437 | return cmd_type; |
6438 | } | |
9a799d71 | 6439 | |
d3d00239 AD |
6440 | static __le32 ixgbe_tx_olinfo_status(u32 tx_flags, unsigned int paylen) |
6441 | { | |
6442 | __le32 olinfo_status = | |
6443 | cpu_to_le32(paylen << IXGBE_ADVTXD_PAYLEN_SHIFT); | |
44df32c5 | 6444 | |
d3d00239 AD |
6445 | if (tx_flags & IXGBE_TX_FLAGS_TSO) { |
6446 | olinfo_status |= cpu_to_le32(IXGBE_ADVTXD_POPTS_TXSM | | |
6447 | (1 << IXGBE_ADVTXD_IDX_SHIFT)); | |
6448 | /* enble IPv4 checksum for TSO */ | |
6449 | if (tx_flags & IXGBE_TX_FLAGS_IPV4) | |
6450 | olinfo_status |= cpu_to_le32(IXGBE_ADVTXD_POPTS_IXSM); | |
9a799d71 AK |
6451 | } |
6452 | ||
d3d00239 AD |
6453 | /* enable L4 checksum for TSO and TX checksum offload */ |
6454 | if (tx_flags & IXGBE_TX_FLAGS_CSUM) | |
6455 | olinfo_status |= cpu_to_le32(IXGBE_ADVTXD_POPTS_TXSM); | |
9a799d71 | 6456 | |
d3d00239 AD |
6457 | #ifdef IXGBE_FCOE |
6458 | /* use index 1 context for FCOE/FSO */ | |
6459 | if (tx_flags & IXGBE_TX_FLAGS_FCOE) | |
6460 | olinfo_status |= cpu_to_le32(IXGBE_ADVTXD_CC | | |
6461 | (1 << IXGBE_ADVTXD_IDX_SHIFT)); | |
9a799d71 | 6462 | |
d3d00239 | 6463 | #endif |
7f9643fd AD |
6464 | /* |
6465 | * Check Context must be set if Tx switch is enabled, which it | |
6466 | * always is for case where virtual functions are running | |
6467 | */ | |
6468 | if (tx_flags & IXGBE_TX_FLAGS_TXSW) | |
6469 | olinfo_status |= cpu_to_le32(IXGBE_ADVTXD_CC); | |
6470 | ||
d3d00239 AD |
6471 | return olinfo_status; |
6472 | } | |
44df32c5 | 6473 | |
d3d00239 AD |
6474 | #define IXGBE_TXD_CMD (IXGBE_TXD_CMD_EOP | \ |
6475 | IXGBE_TXD_CMD_RS) | |
6476 | ||
6477 | static void ixgbe_tx_map(struct ixgbe_ring *tx_ring, | |
6478 | struct sk_buff *skb, | |
6479 | struct ixgbe_tx_buffer *first, | |
6480 | u32 tx_flags, | |
6481 | const u8 hdr_len) | |
6482 | { | |
6483 | struct device *dev = tx_ring->dev; | |
6484 | struct ixgbe_tx_buffer *tx_buffer_info; | |
6485 | union ixgbe_adv_tx_desc *tx_desc; | |
6486 | dma_addr_t dma; | |
6487 | __le32 cmd_type, olinfo_status; | |
6488 | struct skb_frag_struct *frag; | |
6489 | unsigned int f = 0; | |
6490 | unsigned int data_len = skb->data_len; | |
6491 | unsigned int size = skb_headlen(skb); | |
6492 | u32 offset = 0; | |
6493 | u32 paylen = skb->len - hdr_len; | |
6494 | u16 i = tx_ring->next_to_use; | |
6495 | u16 gso_segs; | |
6496 | ||
6497 | #ifdef IXGBE_FCOE | |
6498 | if (tx_flags & IXGBE_TX_FLAGS_FCOE) { | |
6499 | if (data_len >= sizeof(struct fcoe_crc_eof)) { | |
6500 | data_len -= sizeof(struct fcoe_crc_eof); | |
6501 | } else { | |
6502 | size -= sizeof(struct fcoe_crc_eof) - data_len; | |
6503 | data_len = 0; | |
9a799d71 AK |
6504 | } |
6505 | } | |
44df32c5 | 6506 | |
d3d00239 AD |
6507 | #endif |
6508 | dma = dma_map_single(dev, skb->data, size, DMA_TO_DEVICE); | |
6509 | if (dma_mapping_error(dev, dma)) | |
6510 | goto dma_error; | |
8ad494b0 | 6511 | |
d3d00239 AD |
6512 | cmd_type = ixgbe_tx_cmd_type(tx_flags); |
6513 | olinfo_status = ixgbe_tx_olinfo_status(tx_flags, paylen); | |
9a799d71 | 6514 | |
d3d00239 | 6515 | tx_desc = IXGBE_TX_DESC_ADV(tx_ring, i); |
e5a43549 | 6516 | |
d3d00239 AD |
6517 | for (;;) { |
6518 | while (size > IXGBE_MAX_DATA_PER_TXD) { | |
6519 | tx_desc->read.buffer_addr = cpu_to_le64(dma + offset); | |
6520 | tx_desc->read.cmd_type_len = | |
6521 | cmd_type | cpu_to_le32(IXGBE_MAX_DATA_PER_TXD); | |
6522 | tx_desc->read.olinfo_status = olinfo_status; | |
e5a43549 | 6523 | |
d3d00239 AD |
6524 | offset += IXGBE_MAX_DATA_PER_TXD; |
6525 | size -= IXGBE_MAX_DATA_PER_TXD; | |
e5a43549 | 6526 | |
d3d00239 AD |
6527 | tx_desc++; |
6528 | i++; | |
6529 | if (i == tx_ring->count) { | |
6530 | tx_desc = IXGBE_TX_DESC_ADV(tx_ring, 0); | |
6531 | i = 0; | |
6532 | } | |
6533 | } | |
e5a43549 | 6534 | |
e5a43549 | 6535 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; |
d3d00239 AD |
6536 | tx_buffer_info->length = offset + size; |
6537 | tx_buffer_info->tx_flags = tx_flags; | |
6538 | tx_buffer_info->dma = dma; | |
9a799d71 | 6539 | |
d3d00239 AD |
6540 | tx_desc->read.buffer_addr = cpu_to_le64(dma + offset); |
6541 | tx_desc->read.cmd_type_len = cmd_type | cpu_to_le32(size); | |
6542 | tx_desc->read.olinfo_status = olinfo_status; | |
9a799d71 | 6543 | |
d3d00239 AD |
6544 | if (!data_len) |
6545 | break; | |
9a799d71 | 6546 | |
d3d00239 AD |
6547 | frag = &skb_shinfo(skb)->frags[f]; |
6548 | #ifdef IXGBE_FCOE | |
9e903e08 | 6549 | size = min_t(unsigned int, data_len, skb_frag_size(frag)); |
d3d00239 | 6550 | #else |
9e903e08 | 6551 | size = skb_frag_size(frag); |
d3d00239 AD |
6552 | #endif |
6553 | data_len -= size; | |
6554 | f++; | |
9a799d71 | 6555 | |
d3d00239 AD |
6556 | offset = 0; |
6557 | tx_flags |= IXGBE_TX_FLAGS_MAPPED_AS_PAGE; | |
9a799d71 | 6558 | |
877749bf | 6559 | dma = skb_frag_dma_map(dev, frag, 0, size, DMA_TO_DEVICE); |
d3d00239 AD |
6560 | if (dma_mapping_error(dev, dma)) |
6561 | goto dma_error; | |
9a799d71 | 6562 | |
d3d00239 AD |
6563 | tx_desc++; |
6564 | i++; | |
6565 | if (i == tx_ring->count) { | |
6566 | tx_desc = IXGBE_TX_DESC_ADV(tx_ring, 0); | |
6567 | i = 0; | |
6568 | } | |
6569 | } | |
9a799d71 | 6570 | |
d3d00239 | 6571 | tx_desc->read.cmd_type_len |= cpu_to_le32(IXGBE_TXD_CMD); |
9a799d71 | 6572 | |
d3d00239 AD |
6573 | i++; |
6574 | if (i == tx_ring->count) | |
6575 | i = 0; | |
9a799d71 | 6576 | |
d3d00239 | 6577 | tx_ring->next_to_use = i; |
eacd73f7 | 6578 | |
d3d00239 AD |
6579 | if (tx_flags & IXGBE_TX_FLAGS_TSO) |
6580 | gso_segs = skb_shinfo(skb)->gso_segs; | |
6581 | #ifdef IXGBE_FCOE | |
6582 | /* adjust for FCoE Sequence Offload */ | |
6583 | else if (tx_flags & IXGBE_TX_FLAGS_FSO) | |
6584 | gso_segs = DIV_ROUND_UP(skb->len - hdr_len, | |
6585 | skb_shinfo(skb)->gso_size); | |
6586 | #endif /* IXGBE_FCOE */ | |
6587 | else | |
6588 | gso_segs = 1; | |
9a799d71 | 6589 | |
d3d00239 AD |
6590 | /* multiply data chunks by size of headers */ |
6591 | tx_buffer_info->bytecount = paylen + (gso_segs * hdr_len); | |
6592 | tx_buffer_info->gso_segs = gso_segs; | |
6593 | tx_buffer_info->skb = skb; | |
9a799d71 | 6594 | |
d3d00239 AD |
6595 | /* set the timestamp */ |
6596 | first->time_stamp = jiffies; | |
9a799d71 AK |
6597 | |
6598 | /* | |
6599 | * Force memory writes to complete before letting h/w | |
6600 | * know there are new descriptors to fetch. (Only | |
6601 | * applicable for weak-ordered memory model archs, | |
6602 | * such as IA-64). | |
6603 | */ | |
6604 | wmb(); | |
6605 | ||
d3d00239 AD |
6606 | /* set next_to_watch value indicating a packet is present */ |
6607 | first->next_to_watch = tx_desc; | |
6608 | ||
6609 | /* notify HW of packet */ | |
84ea2591 | 6610 | writel(i, tx_ring->tail); |
d3d00239 AD |
6611 | |
6612 | return; | |
6613 | dma_error: | |
6614 | dev_err(dev, "TX DMA map failed\n"); | |
6615 | ||
6616 | /* clear dma mappings for failed tx_buffer_info map */ | |
6617 | for (;;) { | |
6618 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; | |
6619 | ixgbe_unmap_tx_resource(tx_ring, tx_buffer_info); | |
6620 | if (tx_buffer_info == first) | |
6621 | break; | |
6622 | if (i == 0) | |
6623 | i = tx_ring->count; | |
6624 | i--; | |
6625 | } | |
6626 | ||
6627 | dev_kfree_skb_any(skb); | |
6628 | ||
6629 | tx_ring->next_to_use = i; | |
9a799d71 AK |
6630 | } |
6631 | ||
69830529 AD |
6632 | static void ixgbe_atr(struct ixgbe_ring *ring, struct sk_buff *skb, |
6633 | u32 tx_flags, __be16 protocol) | |
6634 | { | |
6635 | struct ixgbe_q_vector *q_vector = ring->q_vector; | |
6636 | union ixgbe_atr_hash_dword input = { .dword = 0 }; | |
6637 | union ixgbe_atr_hash_dword common = { .dword = 0 }; | |
6638 | union { | |
6639 | unsigned char *network; | |
6640 | struct iphdr *ipv4; | |
6641 | struct ipv6hdr *ipv6; | |
6642 | } hdr; | |
ee9e0f0b | 6643 | struct tcphdr *th; |
905e4a41 | 6644 | __be16 vlan_id; |
c4cf55e5 | 6645 | |
69830529 AD |
6646 | /* if ring doesn't have a interrupt vector, cannot perform ATR */ |
6647 | if (!q_vector) | |
6648 | return; | |
6649 | ||
6650 | /* do nothing if sampling is disabled */ | |
6651 | if (!ring->atr_sample_rate) | |
d3ead241 | 6652 | return; |
c4cf55e5 | 6653 | |
69830529 | 6654 | ring->atr_count++; |
c4cf55e5 | 6655 | |
69830529 AD |
6656 | /* snag network header to get L4 type and address */ |
6657 | hdr.network = skb_network_header(skb); | |
6658 | ||
6659 | /* Currently only IPv4/IPv6 with TCP is supported */ | |
6660 | if ((protocol != __constant_htons(ETH_P_IPV6) || | |
6661 | hdr.ipv6->nexthdr != IPPROTO_TCP) && | |
6662 | (protocol != __constant_htons(ETH_P_IP) || | |
6663 | hdr.ipv4->protocol != IPPROTO_TCP)) | |
6664 | return; | |
ee9e0f0b AD |
6665 | |
6666 | th = tcp_hdr(skb); | |
c4cf55e5 | 6667 | |
66f32a8b AD |
6668 | /* skip this packet since it is invalid or the socket is closing */ |
6669 | if (!th || th->fin) | |
69830529 AD |
6670 | return; |
6671 | ||
6672 | /* sample on all syn packets or once every atr sample count */ | |
6673 | if (!th->syn && (ring->atr_count < ring->atr_sample_rate)) | |
6674 | return; | |
6675 | ||
6676 | /* reset sample count */ | |
6677 | ring->atr_count = 0; | |
6678 | ||
6679 | vlan_id = htons(tx_flags >> IXGBE_TX_FLAGS_VLAN_SHIFT); | |
6680 | ||
6681 | /* | |
6682 | * src and dst are inverted, think how the receiver sees them | |
6683 | * | |
6684 | * The input is broken into two sections, a non-compressed section | |
6685 | * containing vm_pool, vlan_id, and flow_type. The rest of the data | |
6686 | * is XORed together and stored in the compressed dword. | |
6687 | */ | |
6688 | input.formatted.vlan_id = vlan_id; | |
6689 | ||
6690 | /* | |
6691 | * since src port and flex bytes occupy the same word XOR them together | |
6692 | * and write the value to source port portion of compressed dword | |
6693 | */ | |
66f32a8b | 6694 | if (tx_flags & (IXGBE_TX_FLAGS_SW_VLAN | IXGBE_TX_FLAGS_HW_VLAN)) |
69830529 AD |
6695 | common.port.src ^= th->dest ^ __constant_htons(ETH_P_8021Q); |
6696 | else | |
6697 | common.port.src ^= th->dest ^ protocol; | |
6698 | common.port.dst ^= th->source; | |
6699 | ||
6700 | if (protocol == __constant_htons(ETH_P_IP)) { | |
6701 | input.formatted.flow_type = IXGBE_ATR_FLOW_TYPE_TCPV4; | |
6702 | common.ip ^= hdr.ipv4->saddr ^ hdr.ipv4->daddr; | |
6703 | } else { | |
6704 | input.formatted.flow_type = IXGBE_ATR_FLOW_TYPE_TCPV6; | |
6705 | common.ip ^= hdr.ipv6->saddr.s6_addr32[0] ^ | |
6706 | hdr.ipv6->saddr.s6_addr32[1] ^ | |
6707 | hdr.ipv6->saddr.s6_addr32[2] ^ | |
6708 | hdr.ipv6->saddr.s6_addr32[3] ^ | |
6709 | hdr.ipv6->daddr.s6_addr32[0] ^ | |
6710 | hdr.ipv6->daddr.s6_addr32[1] ^ | |
6711 | hdr.ipv6->daddr.s6_addr32[2] ^ | |
6712 | hdr.ipv6->daddr.s6_addr32[3]; | |
6713 | } | |
c4cf55e5 PWJ |
6714 | |
6715 | /* This assumes the Rx queue and Tx queue are bound to the same CPU */ | |
69830529 AD |
6716 | ixgbe_fdir_add_signature_filter_82599(&q_vector->adapter->hw, |
6717 | input, common, ring->queue_index); | |
c4cf55e5 PWJ |
6718 | } |
6719 | ||
63544e9c | 6720 | static int __ixgbe_maybe_stop_tx(struct ixgbe_ring *tx_ring, u16 size) |
e092be60 | 6721 | { |
fc77dc3c | 6722 | netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index); |
e092be60 AV |
6723 | /* Herbert's original patch had: |
6724 | * smp_mb__after_netif_stop_queue(); | |
6725 | * but since that doesn't exist yet, just open code it. */ | |
6726 | smp_mb(); | |
6727 | ||
6728 | /* We need to check again in a case another CPU has just | |
6729 | * made room available. */ | |
7d4987de | 6730 | if (likely(ixgbe_desc_unused(tx_ring) < size)) |
e092be60 AV |
6731 | return -EBUSY; |
6732 | ||
6733 | /* A reprieve! - use start_queue because it doesn't call schedule */ | |
fc77dc3c | 6734 | netif_start_subqueue(tx_ring->netdev, tx_ring->queue_index); |
5b7da515 | 6735 | ++tx_ring->tx_stats.restart_queue; |
e092be60 AV |
6736 | return 0; |
6737 | } | |
6738 | ||
82d4e46e | 6739 | static inline int ixgbe_maybe_stop_tx(struct ixgbe_ring *tx_ring, u16 size) |
e092be60 | 6740 | { |
7d4987de | 6741 | if (likely(ixgbe_desc_unused(tx_ring) >= size)) |
e092be60 | 6742 | return 0; |
fc77dc3c | 6743 | return __ixgbe_maybe_stop_tx(tx_ring, size); |
e092be60 AV |
6744 | } |
6745 | ||
09a3b1f8 SH |
6746 | static u16 ixgbe_select_queue(struct net_device *dev, struct sk_buff *skb) |
6747 | { | |
6748 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
6440752c AD |
6749 | int txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : |
6750 | smp_processor_id(); | |
56075a98 | 6751 | #ifdef IXGBE_FCOE |
6440752c | 6752 | __be16 protocol = vlan_get_protocol(skb); |
5e09a105 | 6753 | |
e5b64635 JF |
6754 | if (((protocol == htons(ETH_P_FCOE)) || |
6755 | (protocol == htons(ETH_P_FIP))) && | |
6756 | (adapter->flags & IXGBE_FLAG_FCOE_ENABLED)) { | |
6757 | txq &= (adapter->ring_feature[RING_F_FCOE].indices - 1); | |
6758 | txq += adapter->ring_feature[RING_F_FCOE].mask; | |
6759 | return txq; | |
56075a98 JF |
6760 | } |
6761 | #endif | |
6762 | ||
fdd3d631 KK |
6763 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { |
6764 | while (unlikely(txq >= dev->real_num_tx_queues)) | |
6765 | txq -= dev->real_num_tx_queues; | |
5f715823 | 6766 | return txq; |
fdd3d631 | 6767 | } |
c4cf55e5 | 6768 | |
09a3b1f8 SH |
6769 | return skb_tx_hash(dev, skb); |
6770 | } | |
6771 | ||
fc77dc3c | 6772 | netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb, |
84418e3b AD |
6773 | struct ixgbe_adapter *adapter, |
6774 | struct ixgbe_ring *tx_ring) | |
9a799d71 | 6775 | { |
d3d00239 | 6776 | struct ixgbe_tx_buffer *first; |
5f715823 | 6777 | int tso; |
d3d00239 | 6778 | u32 tx_flags = 0; |
a535c30e AD |
6779 | #if PAGE_SIZE > IXGBE_MAX_DATA_PER_TXD |
6780 | unsigned short f; | |
6781 | #endif | |
a535c30e | 6782 | u16 count = TXD_USE_COUNT(skb_headlen(skb)); |
66f32a8b | 6783 | __be16 protocol = skb->protocol; |
63544e9c | 6784 | u8 hdr_len = 0; |
5e09a105 | 6785 | |
a535c30e AD |
6786 | /* |
6787 | * need: 1 descriptor per page * PAGE_SIZE/IXGBE_MAX_DATA_PER_TXD, | |
6788 | * + 1 desc for skb_head_len/IXGBE_MAX_DATA_PER_TXD, | |
6789 | * + 2 desc gap to keep tail from touching head, | |
6790 | * + 1 desc for context descriptor, | |
6791 | * otherwise try next time | |
6792 | */ | |
6793 | #if PAGE_SIZE > IXGBE_MAX_DATA_PER_TXD | |
6794 | for (f = 0; f < skb_shinfo(skb)->nr_frags; f++) | |
6795 | count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size); | |
6796 | #else | |
6797 | count += skb_shinfo(skb)->nr_frags; | |
6798 | #endif | |
6799 | if (ixgbe_maybe_stop_tx(tx_ring, count + 3)) { | |
6800 | tx_ring->tx_stats.tx_busy++; | |
6801 | return NETDEV_TX_BUSY; | |
6802 | } | |
6803 | ||
7f9643fd AD |
6804 | #ifdef CONFIG_PCI_IOV |
6805 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
6806 | tx_flags |= IXGBE_TX_FLAGS_TXSW; | |
6807 | ||
6808 | #endif | |
66f32a8b | 6809 | /* if we have a HW VLAN tag being added default to the HW one */ |
eab6d18d | 6810 | if (vlan_tx_tag_present(skb)) { |
66f32a8b AD |
6811 | tx_flags |= vlan_tx_tag_get(skb) << IXGBE_TX_FLAGS_VLAN_SHIFT; |
6812 | tx_flags |= IXGBE_TX_FLAGS_HW_VLAN; | |
6813 | /* else if it is a SW VLAN check the next protocol and store the tag */ | |
6814 | } else if (protocol == __constant_htons(ETH_P_8021Q)) { | |
6815 | struct vlan_hdr *vhdr, _vhdr; | |
6816 | vhdr = skb_header_pointer(skb, ETH_HLEN, sizeof(_vhdr), &_vhdr); | |
6817 | if (!vhdr) | |
6818 | goto out_drop; | |
6819 | ||
6820 | protocol = vhdr->h_vlan_encapsulated_proto; | |
6821 | tx_flags |= ntohs(vhdr->h_vlan_TCI) << IXGBE_TX_FLAGS_VLAN_SHIFT; | |
6822 | tx_flags |= IXGBE_TX_FLAGS_SW_VLAN; | |
6823 | } | |
6824 | ||
32701dc2 | 6825 | /* DCB maps skb priorities 0-7 onto 3 bit PCP of VLAN tag. */ |
66f32a8b | 6826 | if ((adapter->flags & IXGBE_FLAG_DCB_ENABLED) && |
09dca476 AD |
6827 | ((tx_flags & (IXGBE_TX_FLAGS_HW_VLAN | IXGBE_TX_FLAGS_SW_VLAN)) || |
6828 | (skb->priority != TC_PRIO_CONTROL))) { | |
66f32a8b | 6829 | tx_flags &= ~IXGBE_TX_FLAGS_VLAN_PRIO_MASK; |
32701dc2 JF |
6830 | tx_flags |= (skb->priority & 0x7) << |
6831 | IXGBE_TX_FLAGS_VLAN_PRIO_SHIFT; | |
66f32a8b AD |
6832 | if (tx_flags & IXGBE_TX_FLAGS_SW_VLAN) { |
6833 | struct vlan_ethhdr *vhdr; | |
6834 | if (skb_header_cloned(skb) && | |
6835 | pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) | |
6836 | goto out_drop; | |
6837 | vhdr = (struct vlan_ethhdr *)skb->data; | |
6838 | vhdr->h_vlan_TCI = htons(tx_flags >> | |
6839 | IXGBE_TX_FLAGS_VLAN_SHIFT); | |
6840 | } else { | |
6841 | tx_flags |= IXGBE_TX_FLAGS_HW_VLAN; | |
2f90b865 | 6842 | } |
9a799d71 | 6843 | } |
eacd73f7 | 6844 | |
a535c30e | 6845 | /* record the location of the first descriptor for this packet */ |
d3d00239 | 6846 | first = &tx_ring->tx_buffer_info[tx_ring->next_to_use]; |
a535c30e | 6847 | |
eacd73f7 | 6848 | #ifdef IXGBE_FCOE |
66f32a8b AD |
6849 | /* setup tx offload for FCoE */ |
6850 | if ((protocol == __constant_htons(ETH_P_FCOE)) && | |
6851 | (adapter->flags & IXGBE_FLAG_FCOE_ENABLED)) { | |
897ab156 AD |
6852 | tso = ixgbe_fso(tx_ring, skb, tx_flags, &hdr_len); |
6853 | if (tso < 0) | |
6854 | goto out_drop; | |
6855 | else if (tso) | |
66f32a8b AD |
6856 | tx_flags |= IXGBE_TX_FLAGS_FSO | |
6857 | IXGBE_TX_FLAGS_FCOE; | |
6858 | else | |
6859 | tx_flags |= IXGBE_TX_FLAGS_FCOE; | |
9a799d71 | 6860 | |
66f32a8b | 6861 | goto xmit_fcoe; |
eacd73f7 | 6862 | } |
9a799d71 | 6863 | |
66f32a8b AD |
6864 | #endif /* IXGBE_FCOE */ |
6865 | /* setup IPv4/IPv6 offloads */ | |
6866 | if (protocol == __constant_htons(ETH_P_IP)) | |
6867 | tx_flags |= IXGBE_TX_FLAGS_IPV4; | |
9a799d71 | 6868 | |
66f32a8b AD |
6869 | tso = ixgbe_tso(tx_ring, skb, tx_flags, protocol, &hdr_len); |
6870 | if (tso < 0) | |
897ab156 | 6871 | goto out_drop; |
66f32a8b AD |
6872 | else if (tso) |
6873 | tx_flags |= IXGBE_TX_FLAGS_TSO; | |
6874 | else if (ixgbe_tx_csum(tx_ring, skb, tx_flags, protocol)) | |
6875 | tx_flags |= IXGBE_TX_FLAGS_CSUM; | |
6876 | ||
6877 | /* add the ATR filter if ATR is on */ | |
6878 | if (test_bit(__IXGBE_TX_FDIR_INIT_DONE, &tx_ring->state)) | |
6879 | ixgbe_atr(tx_ring, skb, tx_flags, protocol); | |
6880 | ||
6881 | #ifdef IXGBE_FCOE | |
6882 | xmit_fcoe: | |
6883 | #endif /* IXGBE_FCOE */ | |
d3d00239 AD |
6884 | ixgbe_tx_map(tx_ring, skb, first, tx_flags, hdr_len); |
6885 | ||
6886 | ixgbe_maybe_stop_tx(tx_ring, DESC_NEEDED); | |
9a799d71 AK |
6887 | |
6888 | return NETDEV_TX_OK; | |
897ab156 AD |
6889 | |
6890 | out_drop: | |
6891 | dev_kfree_skb_any(skb); | |
6892 | return NETDEV_TX_OK; | |
9a799d71 AK |
6893 | } |
6894 | ||
84418e3b AD |
6895 | static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb, struct net_device *netdev) |
6896 | { | |
6897 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
6898 | struct ixgbe_ring *tx_ring; | |
6899 | ||
6900 | tx_ring = adapter->tx_ring[skb->queue_mapping]; | |
fc77dc3c | 6901 | return ixgbe_xmit_frame_ring(skb, adapter, tx_ring); |
84418e3b AD |
6902 | } |
6903 | ||
9a799d71 AK |
6904 | /** |
6905 | * ixgbe_set_mac - Change the Ethernet Address of the NIC | |
6906 | * @netdev: network interface device structure | |
6907 | * @p: pointer to an address structure | |
6908 | * | |
6909 | * Returns 0 on success, negative on failure | |
6910 | **/ | |
6911 | static int ixgbe_set_mac(struct net_device *netdev, void *p) | |
6912 | { | |
6913 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
b4617240 | 6914 | struct ixgbe_hw *hw = &adapter->hw; |
9a799d71 AK |
6915 | struct sockaddr *addr = p; |
6916 | ||
6917 | if (!is_valid_ether_addr(addr->sa_data)) | |
6918 | return -EADDRNOTAVAIL; | |
6919 | ||
6920 | memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); | |
b4617240 | 6921 | memcpy(hw->mac.addr, addr->sa_data, netdev->addr_len); |
9a799d71 | 6922 | |
1cdd1ec8 GR |
6923 | hw->mac.ops.set_rar(hw, 0, hw->mac.addr, adapter->num_vfs, |
6924 | IXGBE_RAH_AV); | |
9a799d71 AK |
6925 | |
6926 | return 0; | |
6927 | } | |
6928 | ||
6b73e10d BH |
6929 | static int |
6930 | ixgbe_mdio_read(struct net_device *netdev, int prtad, int devad, u16 addr) | |
6931 | { | |
6932 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
6933 | struct ixgbe_hw *hw = &adapter->hw; | |
6934 | u16 value; | |
6935 | int rc; | |
6936 | ||
6937 | if (prtad != hw->phy.mdio.prtad) | |
6938 | return -EINVAL; | |
6939 | rc = hw->phy.ops.read_reg(hw, addr, devad, &value); | |
6940 | if (!rc) | |
6941 | rc = value; | |
6942 | return rc; | |
6943 | } | |
6944 | ||
6945 | static int ixgbe_mdio_write(struct net_device *netdev, int prtad, int devad, | |
6946 | u16 addr, u16 value) | |
6947 | { | |
6948 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
6949 | struct ixgbe_hw *hw = &adapter->hw; | |
6950 | ||
6951 | if (prtad != hw->phy.mdio.prtad) | |
6952 | return -EINVAL; | |
6953 | return hw->phy.ops.write_reg(hw, addr, devad, value); | |
6954 | } | |
6955 | ||
6956 | static int ixgbe_ioctl(struct net_device *netdev, struct ifreq *req, int cmd) | |
6957 | { | |
6958 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
6959 | ||
6960 | return mdio_mii_ioctl(&adapter->hw.phy.mdio, if_mii(req), cmd); | |
6961 | } | |
6962 | ||
0365e6e4 PW |
6963 | /** |
6964 | * ixgbe_add_sanmac_netdev - Add the SAN MAC address to the corresponding | |
31278e71 | 6965 | * netdev->dev_addrs |
0365e6e4 PW |
6966 | * @netdev: network interface device structure |
6967 | * | |
6968 | * Returns non-zero on failure | |
6969 | **/ | |
6970 | static int ixgbe_add_sanmac_netdev(struct net_device *dev) | |
6971 | { | |
6972 | int err = 0; | |
6973 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
6974 | struct ixgbe_mac_info *mac = &adapter->hw.mac; | |
6975 | ||
6976 | if (is_valid_ether_addr(mac->san_addr)) { | |
6977 | rtnl_lock(); | |
6978 | err = dev_addr_add(dev, mac->san_addr, NETDEV_HW_ADDR_T_SAN); | |
6979 | rtnl_unlock(); | |
6980 | } | |
6981 | return err; | |
6982 | } | |
6983 | ||
6984 | /** | |
6985 | * ixgbe_del_sanmac_netdev - Removes the SAN MAC address to the corresponding | |
31278e71 | 6986 | * netdev->dev_addrs |
0365e6e4 PW |
6987 | * @netdev: network interface device structure |
6988 | * | |
6989 | * Returns non-zero on failure | |
6990 | **/ | |
6991 | static int ixgbe_del_sanmac_netdev(struct net_device *dev) | |
6992 | { | |
6993 | int err = 0; | |
6994 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
6995 | struct ixgbe_mac_info *mac = &adapter->hw.mac; | |
6996 | ||
6997 | if (is_valid_ether_addr(mac->san_addr)) { | |
6998 | rtnl_lock(); | |
6999 | err = dev_addr_del(dev, mac->san_addr, NETDEV_HW_ADDR_T_SAN); | |
7000 | rtnl_unlock(); | |
7001 | } | |
7002 | return err; | |
7003 | } | |
7004 | ||
9a799d71 AK |
7005 | #ifdef CONFIG_NET_POLL_CONTROLLER |
7006 | /* | |
7007 | * Polling 'interrupt' - used by things like netconsole to send skbs | |
7008 | * without having to re-enable interrupts. It's not called while | |
7009 | * the interrupt routine is executing. | |
7010 | */ | |
7011 | static void ixgbe_netpoll(struct net_device *netdev) | |
7012 | { | |
7013 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
8f9a7167 | 7014 | int i; |
9a799d71 | 7015 | |
1a647bd2 AD |
7016 | /* if interface is down do nothing */ |
7017 | if (test_bit(__IXGBE_DOWN, &adapter->state)) | |
7018 | return; | |
7019 | ||
9a799d71 | 7020 | adapter->flags |= IXGBE_FLAG_IN_NETPOLL; |
8f9a7167 PWJ |
7021 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
7022 | int num_q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; | |
7023 | for (i = 0; i < num_q_vectors; i++) { | |
7024 | struct ixgbe_q_vector *q_vector = adapter->q_vector[i]; | |
4ff7fb12 | 7025 | ixgbe_msix_clean_rings(0, q_vector); |
8f9a7167 PWJ |
7026 | } |
7027 | } else { | |
7028 | ixgbe_intr(adapter->pdev->irq, netdev); | |
7029 | } | |
9a799d71 | 7030 | adapter->flags &= ~IXGBE_FLAG_IN_NETPOLL; |
9a799d71 AK |
7031 | } |
7032 | #endif | |
7033 | ||
de1036b1 ED |
7034 | static struct rtnl_link_stats64 *ixgbe_get_stats64(struct net_device *netdev, |
7035 | struct rtnl_link_stats64 *stats) | |
7036 | { | |
7037 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7038 | int i; | |
7039 | ||
1a51502b | 7040 | rcu_read_lock(); |
de1036b1 | 7041 | for (i = 0; i < adapter->num_rx_queues; i++) { |
1a51502b | 7042 | struct ixgbe_ring *ring = ACCESS_ONCE(adapter->rx_ring[i]); |
de1036b1 ED |
7043 | u64 bytes, packets; |
7044 | unsigned int start; | |
7045 | ||
1a51502b ED |
7046 | if (ring) { |
7047 | do { | |
7048 | start = u64_stats_fetch_begin_bh(&ring->syncp); | |
7049 | packets = ring->stats.packets; | |
7050 | bytes = ring->stats.bytes; | |
7051 | } while (u64_stats_fetch_retry_bh(&ring->syncp, start)); | |
7052 | stats->rx_packets += packets; | |
7053 | stats->rx_bytes += bytes; | |
7054 | } | |
de1036b1 | 7055 | } |
1ac9ad13 ED |
7056 | |
7057 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
7058 | struct ixgbe_ring *ring = ACCESS_ONCE(adapter->tx_ring[i]); | |
7059 | u64 bytes, packets; | |
7060 | unsigned int start; | |
7061 | ||
7062 | if (ring) { | |
7063 | do { | |
7064 | start = u64_stats_fetch_begin_bh(&ring->syncp); | |
7065 | packets = ring->stats.packets; | |
7066 | bytes = ring->stats.bytes; | |
7067 | } while (u64_stats_fetch_retry_bh(&ring->syncp, start)); | |
7068 | stats->tx_packets += packets; | |
7069 | stats->tx_bytes += bytes; | |
7070 | } | |
7071 | } | |
1a51502b | 7072 | rcu_read_unlock(); |
de1036b1 ED |
7073 | /* following stats updated by ixgbe_watchdog_task() */ |
7074 | stats->multicast = netdev->stats.multicast; | |
7075 | stats->rx_errors = netdev->stats.rx_errors; | |
7076 | stats->rx_length_errors = netdev->stats.rx_length_errors; | |
7077 | stats->rx_crc_errors = netdev->stats.rx_crc_errors; | |
7078 | stats->rx_missed_errors = netdev->stats.rx_missed_errors; | |
7079 | return stats; | |
7080 | } | |
7081 | ||
8b1c0b24 JF |
7082 | /* ixgbe_validate_rtr - verify 802.1Qp to Rx packet buffer mapping is valid. |
7083 | * #adapter: pointer to ixgbe_adapter | |
7084 | * @tc: number of traffic classes currently enabled | |
7085 | * | |
7086 | * Configure a valid 802.1Qp to Rx packet buffer mapping ie confirm | |
7087 | * 802.1Q priority maps to a packet buffer that exists. | |
7088 | */ | |
7089 | static void ixgbe_validate_rtr(struct ixgbe_adapter *adapter, u8 tc) | |
7090 | { | |
7091 | struct ixgbe_hw *hw = &adapter->hw; | |
7092 | u32 reg, rsave; | |
7093 | int i; | |
7094 | ||
7095 | /* 82598 have a static priority to TC mapping that can not | |
7096 | * be changed so no validation is needed. | |
7097 | */ | |
7098 | if (hw->mac.type == ixgbe_mac_82598EB) | |
7099 | return; | |
7100 | ||
7101 | reg = IXGBE_READ_REG(hw, IXGBE_RTRUP2TC); | |
7102 | rsave = reg; | |
7103 | ||
7104 | for (i = 0; i < MAX_TRAFFIC_CLASS; i++) { | |
7105 | u8 up2tc = reg >> (i * IXGBE_RTRUP2TC_UP_SHIFT); | |
7106 | ||
7107 | /* If up2tc is out of bounds default to zero */ | |
7108 | if (up2tc > tc) | |
7109 | reg &= ~(0x7 << IXGBE_RTRUP2TC_UP_SHIFT); | |
7110 | } | |
7111 | ||
7112 | if (reg != rsave) | |
7113 | IXGBE_WRITE_REG(hw, IXGBE_RTRUP2TC, reg); | |
7114 | ||
7115 | return; | |
7116 | } | |
7117 | ||
7118 | ||
7119 | /* ixgbe_setup_tc - routine to configure net_device for multiple traffic | |
7120 | * classes. | |
7121 | * | |
7122 | * @netdev: net device to configure | |
7123 | * @tc: number of traffic classes to enable | |
7124 | */ | |
7125 | int ixgbe_setup_tc(struct net_device *dev, u8 tc) | |
7126 | { | |
8b1c0b24 JF |
7127 | struct ixgbe_adapter *adapter = netdev_priv(dev); |
7128 | struct ixgbe_hw *hw = &adapter->hw; | |
8b1c0b24 | 7129 | |
e7589eab JF |
7130 | /* Multiple traffic classes requires multiple queues */ |
7131 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) { | |
7132 | e_err(drv, "Enable failed, needs MSI-X\n"); | |
7133 | return -EINVAL; | |
7134 | } | |
8b1c0b24 JF |
7135 | |
7136 | /* Hardware supports up to 8 traffic classes */ | |
4de2a022 | 7137 | if (tc > adapter->dcb_cfg.num_tcs.pg_tcs || |
8b1c0b24 JF |
7138 | (hw->mac.type == ixgbe_mac_82598EB && tc < MAX_TRAFFIC_CLASS)) |
7139 | return -EINVAL; | |
7140 | ||
7141 | /* Hardware has to reinitialize queues and interrupts to | |
52f33af8 | 7142 | * match packet buffer alignment. Unfortunately, the |
8b1c0b24 JF |
7143 | * hardware is not flexible enough to do this dynamically. |
7144 | */ | |
7145 | if (netif_running(dev)) | |
7146 | ixgbe_close(dev); | |
7147 | ixgbe_clear_interrupt_scheme(adapter); | |
7148 | ||
e7589eab | 7149 | if (tc) { |
8b1c0b24 | 7150 | netdev_set_num_tc(dev, tc); |
e7589eab JF |
7151 | adapter->last_lfc_mode = adapter->hw.fc.current_mode; |
7152 | ||
7153 | adapter->flags |= IXGBE_FLAG_DCB_ENABLED; | |
7154 | adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE; | |
7155 | ||
7156 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) | |
7157 | adapter->hw.fc.requested_mode = ixgbe_fc_none; | |
7158 | } else { | |
8b1c0b24 JF |
7159 | netdev_reset_tc(dev); |
7160 | ||
e7589eab JF |
7161 | adapter->hw.fc.requested_mode = adapter->last_lfc_mode; |
7162 | ||
7163 | adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED; | |
7164 | adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE; | |
7165 | ||
7166 | adapter->temp_dcb_cfg.pfc_mode_enable = false; | |
7167 | adapter->dcb_cfg.pfc_mode_enable = false; | |
7168 | } | |
7169 | ||
8b1c0b24 JF |
7170 | ixgbe_init_interrupt_scheme(adapter); |
7171 | ixgbe_validate_rtr(adapter, tc); | |
7172 | if (netif_running(dev)) | |
7173 | ixgbe_open(dev); | |
7174 | ||
7175 | return 0; | |
7176 | } | |
de1036b1 | 7177 | |
082757af DS |
7178 | void ixgbe_do_reset(struct net_device *netdev) |
7179 | { | |
7180 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7181 | ||
7182 | if (netif_running(netdev)) | |
7183 | ixgbe_reinit_locked(adapter); | |
7184 | else | |
7185 | ixgbe_reset(adapter); | |
7186 | } | |
7187 | ||
c8f44aff MM |
7188 | static netdev_features_t ixgbe_fix_features(struct net_device *netdev, |
7189 | netdev_features_t data) | |
082757af DS |
7190 | { |
7191 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7192 | ||
7193 | #ifdef CONFIG_DCB | |
7194 | if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) | |
7195 | data &= ~NETIF_F_HW_VLAN_RX; | |
7196 | #endif | |
7197 | ||
7198 | /* return error if RXHASH is being enabled when RSS is not supported */ | |
7199 | if (!(adapter->flags & IXGBE_FLAG_RSS_ENABLED)) | |
7200 | data &= ~NETIF_F_RXHASH; | |
7201 | ||
7202 | /* If Rx checksum is disabled, then RSC/LRO should also be disabled */ | |
7203 | if (!(data & NETIF_F_RXCSUM)) | |
7204 | data &= ~NETIF_F_LRO; | |
7205 | ||
7206 | /* Turn off LRO if not RSC capable or invalid ITR settings */ | |
7207 | if (!(adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE)) { | |
7208 | data &= ~NETIF_F_LRO; | |
7209 | } else if (!(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) && | |
7210 | (adapter->rx_itr_setting != 1 && | |
7211 | adapter->rx_itr_setting > IXGBE_MAX_RSC_INT_RATE)) { | |
7212 | data &= ~NETIF_F_LRO; | |
7213 | e_info(probe, "rx-usecs set too low, not enabling RSC\n"); | |
7214 | } | |
7215 | ||
7216 | return data; | |
7217 | } | |
7218 | ||
c8f44aff MM |
7219 | static int ixgbe_set_features(struct net_device *netdev, |
7220 | netdev_features_t data) | |
082757af DS |
7221 | { |
7222 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
7223 | bool need_reset = false; | |
7224 | ||
7225 | /* If Rx checksum is disabled, then RSC/LRO should also be disabled */ | |
7226 | if (!(data & NETIF_F_RXCSUM)) | |
7227 | adapter->flags &= ~IXGBE_FLAG_RX_CSUM_ENABLED; | |
7228 | else | |
7229 | adapter->flags |= IXGBE_FLAG_RX_CSUM_ENABLED; | |
7230 | ||
7231 | /* Make sure RSC matches LRO, reset if change */ | |
7232 | if (!!(data & NETIF_F_LRO) != | |
7233 | !!(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED)) { | |
7234 | adapter->flags2 ^= IXGBE_FLAG2_RSC_ENABLED; | |
7235 | switch (adapter->hw.mac.type) { | |
7236 | case ixgbe_mac_X540: | |
7237 | case ixgbe_mac_82599EB: | |
7238 | need_reset = true; | |
7239 | break; | |
7240 | default: | |
7241 | break; | |
7242 | } | |
7243 | } | |
7244 | ||
7245 | /* | |
7246 | * Check if Flow Director n-tuple support was enabled or disabled. If | |
7247 | * the state changed, we need to reset. | |
7248 | */ | |
7249 | if (!(adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)) { | |
7250 | /* turn off ATR, enable perfect filters and reset */ | |
7251 | if (data & NETIF_F_NTUPLE) { | |
7252 | adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE; | |
7253 | adapter->flags |= IXGBE_FLAG_FDIR_PERFECT_CAPABLE; | |
7254 | need_reset = true; | |
7255 | } | |
7256 | } else if (!(data & NETIF_F_NTUPLE)) { | |
7257 | /* turn off Flow Director, set ATR and reset */ | |
7258 | adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE; | |
7259 | if ((adapter->flags & IXGBE_FLAG_RSS_ENABLED) && | |
7260 | !(adapter->flags & IXGBE_FLAG_DCB_ENABLED)) | |
7261 | adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE; | |
7262 | need_reset = true; | |
7263 | } | |
7264 | ||
7265 | if (need_reset) | |
7266 | ixgbe_do_reset(netdev); | |
7267 | ||
7268 | return 0; | |
7269 | ||
7270 | } | |
7271 | ||
0edc3527 | 7272 | static const struct net_device_ops ixgbe_netdev_ops = { |
e8e9f696 | 7273 | .ndo_open = ixgbe_open, |
0edc3527 | 7274 | .ndo_stop = ixgbe_close, |
00829823 | 7275 | .ndo_start_xmit = ixgbe_xmit_frame, |
09a3b1f8 | 7276 | .ndo_select_queue = ixgbe_select_queue, |
e90d400c | 7277 | .ndo_set_rx_mode = ixgbe_set_rx_mode, |
0edc3527 SH |
7278 | .ndo_validate_addr = eth_validate_addr, |
7279 | .ndo_set_mac_address = ixgbe_set_mac, | |
7280 | .ndo_change_mtu = ixgbe_change_mtu, | |
7281 | .ndo_tx_timeout = ixgbe_tx_timeout, | |
0edc3527 SH |
7282 | .ndo_vlan_rx_add_vid = ixgbe_vlan_rx_add_vid, |
7283 | .ndo_vlan_rx_kill_vid = ixgbe_vlan_rx_kill_vid, | |
6b73e10d | 7284 | .ndo_do_ioctl = ixgbe_ioctl, |
7f01648a GR |
7285 | .ndo_set_vf_mac = ixgbe_ndo_set_vf_mac, |
7286 | .ndo_set_vf_vlan = ixgbe_ndo_set_vf_vlan, | |
7287 | .ndo_set_vf_tx_rate = ixgbe_ndo_set_vf_bw, | |
de4c7f65 | 7288 | .ndo_set_vf_spoofchk = ixgbe_ndo_set_vf_spoofchk, |
7f01648a | 7289 | .ndo_get_vf_config = ixgbe_ndo_get_vf_config, |
de1036b1 | 7290 | .ndo_get_stats64 = ixgbe_get_stats64, |
24095aa3 | 7291 | .ndo_setup_tc = ixgbe_setup_tc, |
0edc3527 SH |
7292 | #ifdef CONFIG_NET_POLL_CONTROLLER |
7293 | .ndo_poll_controller = ixgbe_netpoll, | |
7294 | #endif | |
332d4a7d YZ |
7295 | #ifdef IXGBE_FCOE |
7296 | .ndo_fcoe_ddp_setup = ixgbe_fcoe_ddp_get, | |
68a683cf | 7297 | .ndo_fcoe_ddp_target = ixgbe_fcoe_ddp_target, |
332d4a7d | 7298 | .ndo_fcoe_ddp_done = ixgbe_fcoe_ddp_put, |
8450ff8c YZ |
7299 | .ndo_fcoe_enable = ixgbe_fcoe_enable, |
7300 | .ndo_fcoe_disable = ixgbe_fcoe_disable, | |
61a1fa10 | 7301 | .ndo_fcoe_get_wwn = ixgbe_fcoe_get_wwn, |
ea81875a | 7302 | .ndo_fcoe_get_hbainfo = ixgbe_fcoe_get_hbainfo, |
332d4a7d | 7303 | #endif /* IXGBE_FCOE */ |
082757af DS |
7304 | .ndo_set_features = ixgbe_set_features, |
7305 | .ndo_fix_features = ixgbe_fix_features, | |
0edc3527 SH |
7306 | }; |
7307 | ||
1cdd1ec8 GR |
7308 | static void __devinit ixgbe_probe_vf(struct ixgbe_adapter *adapter, |
7309 | const struct ixgbe_info *ii) | |
7310 | { | |
7311 | #ifdef CONFIG_PCI_IOV | |
7312 | struct ixgbe_hw *hw = &adapter->hw; | |
1cdd1ec8 | 7313 | |
c6bda30a | 7314 | if (hw->mac.type == ixgbe_mac_82598EB) |
1cdd1ec8 GR |
7315 | return; |
7316 | ||
7317 | /* The 82599 supports up to 64 VFs per physical function | |
7318 | * but this implementation limits allocation to 63 so that | |
7319 | * basic networking resources are still available to the | |
7320 | * physical function | |
7321 | */ | |
7322 | adapter->num_vfs = (max_vfs > 63) ? 63 : max_vfs; | |
c6bda30a | 7323 | ixgbe_enable_sriov(adapter, ii); |
1cdd1ec8 GR |
7324 | #endif /* CONFIG_PCI_IOV */ |
7325 | } | |
7326 | ||
9a799d71 AK |
7327 | /** |
7328 | * ixgbe_probe - Device Initialization Routine | |
7329 | * @pdev: PCI device information struct | |
7330 | * @ent: entry in ixgbe_pci_tbl | |
7331 | * | |
7332 | * Returns 0 on success, negative on failure | |
7333 | * | |
7334 | * ixgbe_probe initializes an adapter identified by a pci_dev structure. | |
7335 | * The OS initialization, configuring of the adapter private structure, | |
7336 | * and a hardware reset occur. | |
7337 | **/ | |
7338 | static int __devinit ixgbe_probe(struct pci_dev *pdev, | |
e8e9f696 | 7339 | const struct pci_device_id *ent) |
9a799d71 AK |
7340 | { |
7341 | struct net_device *netdev; | |
7342 | struct ixgbe_adapter *adapter = NULL; | |
7343 | struct ixgbe_hw *hw; | |
7344 | const struct ixgbe_info *ii = ixgbe_info_tbl[ent->driver_data]; | |
9a799d71 AK |
7345 | static int cards_found; |
7346 | int i, err, pci_using_dac; | |
289700db | 7347 | u8 part_str[IXGBE_PBANUM_LENGTH]; |
c85a2618 | 7348 | unsigned int indices = num_possible_cpus(); |
eacd73f7 YZ |
7349 | #ifdef IXGBE_FCOE |
7350 | u16 device_caps; | |
7351 | #endif | |
289700db | 7352 | u32 eec; |
c23f5b6b | 7353 | u16 wol_cap; |
9a799d71 | 7354 | |
bded64a7 AG |
7355 | /* Catch broken hardware that put the wrong VF device ID in |
7356 | * the PCIe SR-IOV capability. | |
7357 | */ | |
7358 | if (pdev->is_virtfn) { | |
7359 | WARN(1, KERN_ERR "%s (%hx:%hx) should not be a VF!\n", | |
7360 | pci_name(pdev), pdev->vendor, pdev->device); | |
7361 | return -EINVAL; | |
7362 | } | |
7363 | ||
9ce77666 | 7364 | err = pci_enable_device_mem(pdev); |
9a799d71 AK |
7365 | if (err) |
7366 | return err; | |
7367 | ||
1b507730 NN |
7368 | if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)) && |
7369 | !dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64))) { | |
9a799d71 AK |
7370 | pci_using_dac = 1; |
7371 | } else { | |
1b507730 | 7372 | err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); |
9a799d71 | 7373 | if (err) { |
1b507730 NN |
7374 | err = dma_set_coherent_mask(&pdev->dev, |
7375 | DMA_BIT_MASK(32)); | |
9a799d71 | 7376 | if (err) { |
b8bc0421 DC |
7377 | dev_err(&pdev->dev, |
7378 | "No usable DMA configuration, aborting\n"); | |
9a799d71 AK |
7379 | goto err_dma; |
7380 | } | |
7381 | } | |
7382 | pci_using_dac = 0; | |
7383 | } | |
7384 | ||
9ce77666 | 7385 | err = pci_request_selected_regions(pdev, pci_select_bars(pdev, |
e8e9f696 | 7386 | IORESOURCE_MEM), ixgbe_driver_name); |
9a799d71 | 7387 | if (err) { |
b8bc0421 DC |
7388 | dev_err(&pdev->dev, |
7389 | "pci_request_selected_regions failed 0x%x\n", err); | |
9a799d71 AK |
7390 | goto err_pci_reg; |
7391 | } | |
7392 | ||
19d5afd4 | 7393 | pci_enable_pcie_error_reporting(pdev); |
6fabd715 | 7394 | |
9a799d71 | 7395 | pci_set_master(pdev); |
fb3b27bc | 7396 | pci_save_state(pdev); |
9a799d71 | 7397 | |
e901acd6 JF |
7398 | #ifdef CONFIG_IXGBE_DCB |
7399 | indices *= MAX_TRAFFIC_CLASS; | |
7400 | #endif | |
7401 | ||
c85a2618 JF |
7402 | if (ii->mac == ixgbe_mac_82598EB) |
7403 | indices = min_t(unsigned int, indices, IXGBE_MAX_RSS_INDICES); | |
7404 | else | |
7405 | indices = min_t(unsigned int, indices, IXGBE_MAX_FDIR_INDICES); | |
7406 | ||
e901acd6 | 7407 | #ifdef IXGBE_FCOE |
c85a2618 JF |
7408 | indices += min_t(unsigned int, num_possible_cpus(), |
7409 | IXGBE_MAX_FCOE_INDICES); | |
7410 | #endif | |
c85a2618 | 7411 | netdev = alloc_etherdev_mq(sizeof(struct ixgbe_adapter), indices); |
9a799d71 AK |
7412 | if (!netdev) { |
7413 | err = -ENOMEM; | |
7414 | goto err_alloc_etherdev; | |
7415 | } | |
7416 | ||
9a799d71 AK |
7417 | SET_NETDEV_DEV(netdev, &pdev->dev); |
7418 | ||
9a799d71 | 7419 | adapter = netdev_priv(netdev); |
c60fbb00 | 7420 | pci_set_drvdata(pdev, adapter); |
9a799d71 AK |
7421 | |
7422 | adapter->netdev = netdev; | |
7423 | adapter->pdev = pdev; | |
7424 | hw = &adapter->hw; | |
7425 | hw->back = adapter; | |
7426 | adapter->msg_enable = (1 << DEFAULT_DEBUG_LEVEL_SHIFT) - 1; | |
7427 | ||
05857980 | 7428 | hw->hw_addr = ioremap(pci_resource_start(pdev, 0), |
e8e9f696 | 7429 | pci_resource_len(pdev, 0)); |
9a799d71 AK |
7430 | if (!hw->hw_addr) { |
7431 | err = -EIO; | |
7432 | goto err_ioremap; | |
7433 | } | |
7434 | ||
7435 | for (i = 1; i <= 5; i++) { | |
7436 | if (pci_resource_len(pdev, i) == 0) | |
7437 | continue; | |
7438 | } | |
7439 | ||
0edc3527 | 7440 | netdev->netdev_ops = &ixgbe_netdev_ops; |
9a799d71 | 7441 | ixgbe_set_ethtool_ops(netdev); |
9a799d71 | 7442 | netdev->watchdog_timeo = 5 * HZ; |
9fe93afd | 7443 | strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1); |
9a799d71 | 7444 | |
9a799d71 AK |
7445 | adapter->bd_number = cards_found; |
7446 | ||
9a799d71 AK |
7447 | /* Setup hw api */ |
7448 | memcpy(&hw->mac.ops, ii->mac_ops, sizeof(hw->mac.ops)); | |
021230d4 | 7449 | hw->mac.type = ii->mac; |
9a799d71 | 7450 | |
c44ade9e JB |
7451 | /* EEPROM */ |
7452 | memcpy(&hw->eeprom.ops, ii->eeprom_ops, sizeof(hw->eeprom.ops)); | |
7453 | eec = IXGBE_READ_REG(hw, IXGBE_EEC); | |
7454 | /* If EEPROM is valid (bit 8 = 1), use default otherwise use bit bang */ | |
7455 | if (!(eec & (1 << 8))) | |
7456 | hw->eeprom.ops.read = &ixgbe_read_eeprom_bit_bang_generic; | |
7457 | ||
7458 | /* PHY */ | |
7459 | memcpy(&hw->phy.ops, ii->phy_ops, sizeof(hw->phy.ops)); | |
c4900be0 | 7460 | hw->phy.sfp_type = ixgbe_sfp_type_unknown; |
6b73e10d BH |
7461 | /* ixgbe_identify_phy_generic will set prtad and mmds properly */ |
7462 | hw->phy.mdio.prtad = MDIO_PRTAD_NONE; | |
7463 | hw->phy.mdio.mmds = 0; | |
7464 | hw->phy.mdio.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22; | |
7465 | hw->phy.mdio.dev = netdev; | |
7466 | hw->phy.mdio.mdio_read = ixgbe_mdio_read; | |
7467 | hw->phy.mdio.mdio_write = ixgbe_mdio_write; | |
c4900be0 | 7468 | |
8ca783ab | 7469 | ii->get_invariants(hw); |
9a799d71 AK |
7470 | |
7471 | /* setup the private structure */ | |
7472 | err = ixgbe_sw_init(adapter); | |
7473 | if (err) | |
7474 | goto err_sw_init; | |
7475 | ||
e86bff0e | 7476 | /* Make it possible the adapter to be woken up via WOL */ |
b93a2226 DS |
7477 | switch (adapter->hw.mac.type) { |
7478 | case ixgbe_mac_82599EB: | |
7479 | case ixgbe_mac_X540: | |
e86bff0e | 7480 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); |
b93a2226 DS |
7481 | break; |
7482 | default: | |
7483 | break; | |
7484 | } | |
e86bff0e | 7485 | |
bf069c97 DS |
7486 | /* |
7487 | * If there is a fan on this device and it has failed log the | |
7488 | * failure. | |
7489 | */ | |
7490 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) { | |
7491 | u32 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); | |
7492 | if (esdp & IXGBE_ESDP_SDP1) | |
396e799c | 7493 | e_crit(probe, "Fan has stopped, replace the adapter\n"); |
bf069c97 DS |
7494 | } |
7495 | ||
c44ade9e | 7496 | /* reset_hw fills in the perm_addr as well */ |
119fc60a | 7497 | hw->phy.reset_if_overtemp = true; |
c44ade9e | 7498 | err = hw->mac.ops.reset_hw(hw); |
119fc60a | 7499 | hw->phy.reset_if_overtemp = false; |
8ca783ab DS |
7500 | if (err == IXGBE_ERR_SFP_NOT_PRESENT && |
7501 | hw->mac.type == ixgbe_mac_82598EB) { | |
8ca783ab DS |
7502 | err = 0; |
7503 | } else if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) { | |
7086400d | 7504 | e_dev_err("failed to load because an unsupported SFP+ " |
849c4542 ET |
7505 | "module type was detected.\n"); |
7506 | e_dev_err("Reload the driver after installing a supported " | |
7507 | "module.\n"); | |
04f165ef PW |
7508 | goto err_sw_init; |
7509 | } else if (err) { | |
849c4542 | 7510 | e_dev_err("HW Init failed: %d\n", err); |
c44ade9e JB |
7511 | goto err_sw_init; |
7512 | } | |
7513 | ||
1cdd1ec8 GR |
7514 | ixgbe_probe_vf(adapter, ii); |
7515 | ||
396e799c | 7516 | netdev->features = NETIF_F_SG | |
e8e9f696 | 7517 | NETIF_F_IP_CSUM | |
082757af | 7518 | NETIF_F_IPV6_CSUM | |
e8e9f696 JP |
7519 | NETIF_F_HW_VLAN_TX | |
7520 | NETIF_F_HW_VLAN_RX | | |
082757af DS |
7521 | NETIF_F_HW_VLAN_FILTER | |
7522 | NETIF_F_TSO | | |
7523 | NETIF_F_TSO6 | | |
082757af DS |
7524 | NETIF_F_RXHASH | |
7525 | NETIF_F_RXCSUM; | |
9a799d71 | 7526 | |
082757af | 7527 | netdev->hw_features = netdev->features; |
ad31c402 | 7528 | |
58be7666 DS |
7529 | switch (adapter->hw.mac.type) { |
7530 | case ixgbe_mac_82599EB: | |
7531 | case ixgbe_mac_X540: | |
45a5ead0 | 7532 | netdev->features |= NETIF_F_SCTP_CSUM; |
082757af DS |
7533 | netdev->hw_features |= NETIF_F_SCTP_CSUM | |
7534 | NETIF_F_NTUPLE; | |
58be7666 DS |
7535 | break; |
7536 | default: | |
7537 | break; | |
7538 | } | |
45a5ead0 | 7539 | |
ad31c402 JK |
7540 | netdev->vlan_features |= NETIF_F_TSO; |
7541 | netdev->vlan_features |= NETIF_F_TSO6; | |
22f32b7a | 7542 | netdev->vlan_features |= NETIF_F_IP_CSUM; |
cd1da503 | 7543 | netdev->vlan_features |= NETIF_F_IPV6_CSUM; |
ad31c402 JK |
7544 | netdev->vlan_features |= NETIF_F_SG; |
7545 | ||
01789349 JP |
7546 | netdev->priv_flags |= IFF_UNICAST_FLT; |
7547 | ||
1cdd1ec8 GR |
7548 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) |
7549 | adapter->flags &= ~(IXGBE_FLAG_RSS_ENABLED | | |
7550 | IXGBE_FLAG_DCB_ENABLED); | |
2f90b865 | 7551 | |
7a6b6f51 | 7552 | #ifdef CONFIG_IXGBE_DCB |
2f90b865 AD |
7553 | netdev->dcbnl_ops = &dcbnl_ops; |
7554 | #endif | |
7555 | ||
eacd73f7 | 7556 | #ifdef IXGBE_FCOE |
0d551589 | 7557 | if (adapter->flags & IXGBE_FLAG_FCOE_CAPABLE) { |
eacd73f7 YZ |
7558 | if (hw->mac.ops.get_device_caps) { |
7559 | hw->mac.ops.get_device_caps(hw, &device_caps); | |
0d551589 YZ |
7560 | if (device_caps & IXGBE_DEVICE_CAPS_FCOE_OFFLOADS) |
7561 | adapter->flags &= ~IXGBE_FLAG_FCOE_CAPABLE; | |
eacd73f7 YZ |
7562 | } |
7563 | } | |
5e09d7f6 YZ |
7564 | if (adapter->flags & IXGBE_FLAG_FCOE_CAPABLE) { |
7565 | netdev->vlan_features |= NETIF_F_FCOE_CRC; | |
7566 | netdev->vlan_features |= NETIF_F_FSO; | |
7567 | netdev->vlan_features |= NETIF_F_FCOE_MTU; | |
7568 | } | |
eacd73f7 | 7569 | #endif /* IXGBE_FCOE */ |
7b872a55 | 7570 | if (pci_using_dac) { |
9a799d71 | 7571 | netdev->features |= NETIF_F_HIGHDMA; |
7b872a55 YZ |
7572 | netdev->vlan_features |= NETIF_F_HIGHDMA; |
7573 | } | |
9a799d71 | 7574 | |
082757af DS |
7575 | if (adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE) |
7576 | netdev->hw_features |= NETIF_F_LRO; | |
0c19d6af | 7577 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) |
f8212f97 AD |
7578 | netdev->features |= NETIF_F_LRO; |
7579 | ||
9a799d71 | 7580 | /* make sure the EEPROM is good */ |
c44ade9e | 7581 | if (hw->eeprom.ops.validate_checksum(hw, NULL) < 0) { |
849c4542 | 7582 | e_dev_err("The EEPROM Checksum Is Not Valid\n"); |
9a799d71 AK |
7583 | err = -EIO; |
7584 | goto err_eeprom; | |
7585 | } | |
7586 | ||
7587 | memcpy(netdev->dev_addr, hw->mac.perm_addr, netdev->addr_len); | |
7588 | memcpy(netdev->perm_addr, hw->mac.perm_addr, netdev->addr_len); | |
7589 | ||
c44ade9e | 7590 | if (ixgbe_validate_mac_addr(netdev->perm_addr)) { |
849c4542 | 7591 | e_dev_err("invalid MAC address\n"); |
9a799d71 AK |
7592 | err = -EIO; |
7593 | goto err_eeprom; | |
7594 | } | |
7595 | ||
7086400d AD |
7596 | setup_timer(&adapter->service_timer, &ixgbe_service_timer, |
7597 | (unsigned long) adapter); | |
9a799d71 | 7598 | |
7086400d AD |
7599 | INIT_WORK(&adapter->service_task, ixgbe_service_task); |
7600 | clear_bit(__IXGBE_SERVICE_SCHED, &adapter->state); | |
9a799d71 | 7601 | |
021230d4 AV |
7602 | err = ixgbe_init_interrupt_scheme(adapter); |
7603 | if (err) | |
7604 | goto err_sw_init; | |
9a799d71 | 7605 | |
082757af DS |
7606 | if (!(adapter->flags & IXGBE_FLAG_RSS_ENABLED)) { |
7607 | netdev->hw_features &= ~NETIF_F_RXHASH; | |
67a74ee2 | 7608 | netdev->features &= ~NETIF_F_RXHASH; |
082757af | 7609 | } |
67a74ee2 | 7610 | |
c23f5b6b ET |
7611 | /* WOL not supported for all but the following */ |
7612 | adapter->wol = 0; | |
e8e26350 | 7613 | switch (pdev->device) { |
0b077fea | 7614 | case IXGBE_DEV_ID_82599_SFP: |
0e22d043 DS |
7615 | /* Only these subdevice supports WOL */ |
7616 | switch (pdev->subsystem_device) { | |
7617 | case IXGBE_SUBDEV_ID_82599_560FLR: | |
7618 | /* only support first port */ | |
7619 | if (hw->bus.func != 0) | |
7620 | break; | |
7621 | case IXGBE_SUBDEV_ID_82599_SFP: | |
9417c464 | 7622 | adapter->wol = IXGBE_WUFC_MAG; |
0e22d043 DS |
7623 | break; |
7624 | } | |
0b077fea | 7625 | break; |
50d6c681 AD |
7626 | case IXGBE_DEV_ID_82599_COMBO_BACKPLANE: |
7627 | /* All except this subdevice support WOL */ | |
0b077fea | 7628 | if (pdev->subsystem_device != IXGBE_SUBDEV_ID_82599_KX4_KR_MEZZ) |
9417c464 | 7629 | adapter->wol = IXGBE_WUFC_MAG; |
0b077fea | 7630 | break; |
e8e26350 | 7631 | case IXGBE_DEV_ID_82599_KX4: |
9417c464 | 7632 | adapter->wol = IXGBE_WUFC_MAG; |
e8e26350 | 7633 | break; |
c23f5b6b ET |
7634 | case IXGBE_DEV_ID_X540T: |
7635 | /* Check eeprom to see if it is enabled */ | |
7636 | hw->eeprom.ops.read(hw, 0x2c, &adapter->eeprom_cap); | |
7637 | wol_cap = adapter->eeprom_cap & IXGBE_DEVICE_CAPS_WOL_MASK; | |
7638 | ||
7639 | if ((wol_cap == IXGBE_DEVICE_CAPS_WOL_PORT0_1) || | |
7640 | ((wol_cap == IXGBE_DEVICE_CAPS_WOL_PORT0) && | |
7641 | (hw->bus.func == 0))) | |
7642 | adapter->wol = IXGBE_WUFC_MAG; | |
e8e26350 PW |
7643 | break; |
7644 | } | |
e8e26350 PW |
7645 | device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); |
7646 | ||
15e5209f ET |
7647 | /* save off EEPROM version number */ |
7648 | hw->eeprom.ops.read(hw, 0x2e, &adapter->eeprom_verh); | |
7649 | hw->eeprom.ops.read(hw, 0x2d, &adapter->eeprom_verl); | |
7650 | ||
04f165ef PW |
7651 | /* pick up the PCI bus settings for reporting later */ |
7652 | hw->mac.ops.get_bus_info(hw); | |
7653 | ||
9a799d71 | 7654 | /* print bus type/speed/width info */ |
849c4542 | 7655 | e_dev_info("(PCI Express:%s:%s) %pM\n", |
6716344c DS |
7656 | (hw->bus.speed == ixgbe_bus_speed_5000 ? "5.0GT/s" : |
7657 | hw->bus.speed == ixgbe_bus_speed_2500 ? "2.5GT/s" : | |
e8e9f696 JP |
7658 | "Unknown"), |
7659 | (hw->bus.width == ixgbe_bus_width_pcie_x8 ? "Width x8" : | |
7660 | hw->bus.width == ixgbe_bus_width_pcie_x4 ? "Width x4" : | |
7661 | hw->bus.width == ixgbe_bus_width_pcie_x1 ? "Width x1" : | |
7662 | "Unknown"), | |
7663 | netdev->dev_addr); | |
289700db DS |
7664 | |
7665 | err = ixgbe_read_pba_string_generic(hw, part_str, IXGBE_PBANUM_LENGTH); | |
7666 | if (err) | |
9fe93afd | 7667 | strncpy(part_str, "Unknown", IXGBE_PBANUM_LENGTH); |
e8e26350 | 7668 | if (ixgbe_is_sfp(hw) && hw->phy.sfp_type != ixgbe_sfp_type_not_present) |
289700db | 7669 | e_dev_info("MAC: %d, PHY: %d, SFP+: %d, PBA No: %s\n", |
849c4542 | 7670 | hw->mac.type, hw->phy.type, hw->phy.sfp_type, |
289700db | 7671 | part_str); |
e8e26350 | 7672 | else |
289700db DS |
7673 | e_dev_info("MAC: %d, PHY: %d, PBA No: %s\n", |
7674 | hw->mac.type, hw->phy.type, part_str); | |
9a799d71 | 7675 | |
e8e26350 | 7676 | if (hw->bus.width <= ixgbe_bus_width_pcie_x4) { |
849c4542 ET |
7677 | e_dev_warn("PCI-Express bandwidth available for this card is " |
7678 | "not sufficient for optimal performance.\n"); | |
7679 | e_dev_warn("For optimal performance a x8 PCI-Express slot " | |
7680 | "is required.\n"); | |
0c254d86 AK |
7681 | } |
7682 | ||
9a799d71 | 7683 | /* reset the hardware with the new settings */ |
794caeb2 | 7684 | err = hw->mac.ops.start_hw(hw); |
c44ade9e | 7685 | |
794caeb2 PWJ |
7686 | if (err == IXGBE_ERR_EEPROM_VERSION) { |
7687 | /* We are running on a pre-production device, log a warning */ | |
849c4542 ET |
7688 | e_dev_warn("This device is a pre-production adapter/LOM. " |
7689 | "Please be aware there may be issues associated " | |
7690 | "with your hardware. If you are experiencing " | |
7691 | "problems please contact your Intel or hardware " | |
7692 | "representative who provided you with this " | |
7693 | "hardware.\n"); | |
794caeb2 | 7694 | } |
9a799d71 AK |
7695 | strcpy(netdev->name, "eth%d"); |
7696 | err = register_netdev(netdev); | |
7697 | if (err) | |
7698 | goto err_register; | |
7699 | ||
93d3ce8f ET |
7700 | /* power down the optics for multispeed fiber and 82599 SFP+ fiber */ |
7701 | if (hw->mac.ops.disable_tx_laser && | |
7702 | ((hw->phy.multispeed_fiber) || | |
7703 | ((hw->mac.ops.get_media_type(hw) == ixgbe_media_type_fiber) && | |
7704 | (hw->mac.type == ixgbe_mac_82599EB)))) | |
7705 | hw->mac.ops.disable_tx_laser(hw); | |
7706 | ||
54386467 JB |
7707 | /* carrier off reporting is important to ethtool even BEFORE open */ |
7708 | netif_carrier_off(netdev); | |
7709 | ||
5dd2d332 | 7710 | #ifdef CONFIG_IXGBE_DCA |
652f093f | 7711 | if (dca_add_requester(&pdev->dev) == 0) { |
bd0362dd | 7712 | adapter->flags |= IXGBE_FLAG_DCA_ENABLED; |
bd0362dd JC |
7713 | ixgbe_setup_dca(adapter); |
7714 | } | |
7715 | #endif | |
1cdd1ec8 | 7716 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { |
396e799c | 7717 | e_info(probe, "IOV is enabled with %d VFs\n", adapter->num_vfs); |
1cdd1ec8 GR |
7718 | for (i = 0; i < adapter->num_vfs; i++) |
7719 | ixgbe_vf_configuration(pdev, (i | 0x10000000)); | |
7720 | } | |
7721 | ||
2466dd9c JK |
7722 | /* firmware requires driver version to be 0xFFFFFFFF |
7723 | * since os does not support feature | |
7724 | */ | |
9612de92 | 7725 | if (hw->mac.ops.set_fw_drv_ver) |
2466dd9c JK |
7726 | hw->mac.ops.set_fw_drv_ver(hw, 0xFF, 0xFF, 0xFF, |
7727 | 0xFF); | |
9612de92 | 7728 | |
0365e6e4 PW |
7729 | /* add san mac addr to netdev */ |
7730 | ixgbe_add_sanmac_netdev(netdev); | |
9a799d71 | 7731 | |
ea81875a | 7732 | e_dev_info("%s\n", ixgbe_default_device_descr); |
9a799d71 AK |
7733 | cards_found++; |
7734 | return 0; | |
7735 | ||
7736 | err_register: | |
5eba3699 | 7737 | ixgbe_release_hw_control(adapter); |
7a921c93 | 7738 | ixgbe_clear_interrupt_scheme(adapter); |
9a799d71 AK |
7739 | err_sw_init: |
7740 | err_eeprom: | |
1cdd1ec8 GR |
7741 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) |
7742 | ixgbe_disable_sriov(adapter); | |
7086400d | 7743 | adapter->flags2 &= ~IXGBE_FLAG2_SEARCH_FOR_SFP; |
9a799d71 AK |
7744 | iounmap(hw->hw_addr); |
7745 | err_ioremap: | |
7746 | free_netdev(netdev); | |
7747 | err_alloc_etherdev: | |
e8e9f696 JP |
7748 | pci_release_selected_regions(pdev, |
7749 | pci_select_bars(pdev, IORESOURCE_MEM)); | |
9a799d71 AK |
7750 | err_pci_reg: |
7751 | err_dma: | |
7752 | pci_disable_device(pdev); | |
7753 | return err; | |
7754 | } | |
7755 | ||
7756 | /** | |
7757 | * ixgbe_remove - Device Removal Routine | |
7758 | * @pdev: PCI device information struct | |
7759 | * | |
7760 | * ixgbe_remove is called by the PCI subsystem to alert the driver | |
7761 | * that it should release a PCI device. The could be caused by a | |
7762 | * Hot-Plug event, or because the driver is going to be removed from | |
7763 | * memory. | |
7764 | **/ | |
7765 | static void __devexit ixgbe_remove(struct pci_dev *pdev) | |
7766 | { | |
c60fbb00 AD |
7767 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
7768 | struct net_device *netdev = adapter->netdev; | |
9a799d71 AK |
7769 | |
7770 | set_bit(__IXGBE_DOWN, &adapter->state); | |
7086400d | 7771 | cancel_work_sync(&adapter->service_task); |
9a799d71 | 7772 | |
5dd2d332 | 7773 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd JC |
7774 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) { |
7775 | adapter->flags &= ~IXGBE_FLAG_DCA_ENABLED; | |
7776 | dca_remove_requester(&pdev->dev); | |
7777 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, 1); | |
7778 | } | |
7779 | ||
7780 | #endif | |
332d4a7d YZ |
7781 | #ifdef IXGBE_FCOE |
7782 | if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) | |
7783 | ixgbe_cleanup_fcoe(adapter); | |
7784 | ||
7785 | #endif /* IXGBE_FCOE */ | |
0365e6e4 PW |
7786 | |
7787 | /* remove the added san mac */ | |
7788 | ixgbe_del_sanmac_netdev(netdev); | |
7789 | ||
c4900be0 DS |
7790 | if (netdev->reg_state == NETREG_REGISTERED) |
7791 | unregister_netdev(netdev); | |
9a799d71 | 7792 | |
c6bda30a GR |
7793 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { |
7794 | if (!(ixgbe_check_vf_assignment(adapter))) | |
7795 | ixgbe_disable_sriov(adapter); | |
7796 | else | |
7797 | e_dev_warn("Unloading driver while VFs are assigned " | |
7798 | "- VFs will not be deallocated\n"); | |
7799 | } | |
1cdd1ec8 | 7800 | |
7a921c93 | 7801 | ixgbe_clear_interrupt_scheme(adapter); |
5eba3699 | 7802 | |
021230d4 | 7803 | ixgbe_release_hw_control(adapter); |
9a799d71 AK |
7804 | |
7805 | iounmap(adapter->hw.hw_addr); | |
9ce77666 | 7806 | pci_release_selected_regions(pdev, pci_select_bars(pdev, |
e8e9f696 | 7807 | IORESOURCE_MEM)); |
9a799d71 | 7808 | |
849c4542 | 7809 | e_dev_info("complete\n"); |
021230d4 | 7810 | |
9a799d71 AK |
7811 | free_netdev(netdev); |
7812 | ||
19d5afd4 | 7813 | pci_disable_pcie_error_reporting(pdev); |
6fabd715 | 7814 | |
9a799d71 AK |
7815 | pci_disable_device(pdev); |
7816 | } | |
7817 | ||
7818 | /** | |
7819 | * ixgbe_io_error_detected - called when PCI error is detected | |
7820 | * @pdev: Pointer to PCI device | |
7821 | * @state: The current pci connection state | |
7822 | * | |
7823 | * This function is called after a PCI bus error affecting | |
7824 | * this device has been detected. | |
7825 | */ | |
7826 | static pci_ers_result_t ixgbe_io_error_detected(struct pci_dev *pdev, | |
e8e9f696 | 7827 | pci_channel_state_t state) |
9a799d71 | 7828 | { |
c60fbb00 AD |
7829 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
7830 | struct net_device *netdev = adapter->netdev; | |
9a799d71 | 7831 | |
83c61fa9 GR |
7832 | #ifdef CONFIG_PCI_IOV |
7833 | struct pci_dev *bdev, *vfdev; | |
7834 | u32 dw0, dw1, dw2, dw3; | |
7835 | int vf, pos; | |
7836 | u16 req_id, pf_func; | |
7837 | ||
7838 | if (adapter->hw.mac.type == ixgbe_mac_82598EB || | |
7839 | adapter->num_vfs == 0) | |
7840 | goto skip_bad_vf_detection; | |
7841 | ||
7842 | bdev = pdev->bus->self; | |
7843 | while (bdev && (bdev->pcie_type != PCI_EXP_TYPE_ROOT_PORT)) | |
7844 | bdev = bdev->bus->self; | |
7845 | ||
7846 | if (!bdev) | |
7847 | goto skip_bad_vf_detection; | |
7848 | ||
7849 | pos = pci_find_ext_capability(bdev, PCI_EXT_CAP_ID_ERR); | |
7850 | if (!pos) | |
7851 | goto skip_bad_vf_detection; | |
7852 | ||
7853 | pci_read_config_dword(bdev, pos + PCI_ERR_HEADER_LOG, &dw0); | |
7854 | pci_read_config_dword(bdev, pos + PCI_ERR_HEADER_LOG + 4, &dw1); | |
7855 | pci_read_config_dword(bdev, pos + PCI_ERR_HEADER_LOG + 8, &dw2); | |
7856 | pci_read_config_dword(bdev, pos + PCI_ERR_HEADER_LOG + 12, &dw3); | |
7857 | ||
7858 | req_id = dw1 >> 16; | |
7859 | /* On the 82599 if bit 7 of the requestor ID is set then it's a VF */ | |
7860 | if (!(req_id & 0x0080)) | |
7861 | goto skip_bad_vf_detection; | |
7862 | ||
7863 | pf_func = req_id & 0x01; | |
7864 | if ((pf_func & 1) == (pdev->devfn & 1)) { | |
7865 | unsigned int device_id; | |
7866 | ||
7867 | vf = (req_id & 0x7F) >> 1; | |
7868 | e_dev_err("VF %d has caused a PCIe error\n", vf); | |
7869 | e_dev_err("TLP: dw0: %8.8x\tdw1: %8.8x\tdw2: " | |
7870 | "%8.8x\tdw3: %8.8x\n", | |
7871 | dw0, dw1, dw2, dw3); | |
7872 | switch (adapter->hw.mac.type) { | |
7873 | case ixgbe_mac_82599EB: | |
7874 | device_id = IXGBE_82599_VF_DEVICE_ID; | |
7875 | break; | |
7876 | case ixgbe_mac_X540: | |
7877 | device_id = IXGBE_X540_VF_DEVICE_ID; | |
7878 | break; | |
7879 | default: | |
7880 | device_id = 0; | |
7881 | break; | |
7882 | } | |
7883 | ||
7884 | /* Find the pci device of the offending VF */ | |
7885 | vfdev = pci_get_device(IXGBE_INTEL_VENDOR_ID, device_id, NULL); | |
7886 | while (vfdev) { | |
7887 | if (vfdev->devfn == (req_id & 0xFF)) | |
7888 | break; | |
7889 | vfdev = pci_get_device(IXGBE_INTEL_VENDOR_ID, | |
7890 | device_id, vfdev); | |
7891 | } | |
7892 | /* | |
7893 | * There's a slim chance the VF could have been hot plugged, | |
7894 | * so if it is no longer present we don't need to issue the | |
7895 | * VFLR. Just clean up the AER in that case. | |
7896 | */ | |
7897 | if (vfdev) { | |
7898 | e_dev_err("Issuing VFLR to VF %d\n", vf); | |
7899 | pci_write_config_dword(vfdev, 0xA8, 0x00008000); | |
7900 | } | |
7901 | ||
7902 | pci_cleanup_aer_uncorrect_error_status(pdev); | |
7903 | } | |
7904 | ||
7905 | /* | |
7906 | * Even though the error may have occurred on the other port | |
7907 | * we still need to increment the vf error reference count for | |
7908 | * both ports because the I/O resume function will be called | |
7909 | * for both of them. | |
7910 | */ | |
7911 | adapter->vferr_refcount++; | |
7912 | ||
7913 | return PCI_ERS_RESULT_RECOVERED; | |
7914 | ||
7915 | skip_bad_vf_detection: | |
7916 | #endif /* CONFIG_PCI_IOV */ | |
9a799d71 AK |
7917 | netif_device_detach(netdev); |
7918 | ||
3044b8d1 BL |
7919 | if (state == pci_channel_io_perm_failure) |
7920 | return PCI_ERS_RESULT_DISCONNECT; | |
7921 | ||
9a799d71 AK |
7922 | if (netif_running(netdev)) |
7923 | ixgbe_down(adapter); | |
7924 | pci_disable_device(pdev); | |
7925 | ||
b4617240 | 7926 | /* Request a slot reset. */ |
9a799d71 AK |
7927 | return PCI_ERS_RESULT_NEED_RESET; |
7928 | } | |
7929 | ||
7930 | /** | |
7931 | * ixgbe_io_slot_reset - called after the pci bus has been reset. | |
7932 | * @pdev: Pointer to PCI device | |
7933 | * | |
7934 | * Restart the card from scratch, as if from a cold-boot. | |
7935 | */ | |
7936 | static pci_ers_result_t ixgbe_io_slot_reset(struct pci_dev *pdev) | |
7937 | { | |
c60fbb00 | 7938 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
6fabd715 PWJ |
7939 | pci_ers_result_t result; |
7940 | int err; | |
9a799d71 | 7941 | |
9ce77666 | 7942 | if (pci_enable_device_mem(pdev)) { |
396e799c | 7943 | e_err(probe, "Cannot re-enable PCI device after reset.\n"); |
6fabd715 PWJ |
7944 | result = PCI_ERS_RESULT_DISCONNECT; |
7945 | } else { | |
7946 | pci_set_master(pdev); | |
7947 | pci_restore_state(pdev); | |
c0e1f68b | 7948 | pci_save_state(pdev); |
9a799d71 | 7949 | |
dd4d8ca6 | 7950 | pci_wake_from_d3(pdev, false); |
9a799d71 | 7951 | |
6fabd715 | 7952 | ixgbe_reset(adapter); |
88512539 | 7953 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); |
6fabd715 PWJ |
7954 | result = PCI_ERS_RESULT_RECOVERED; |
7955 | } | |
7956 | ||
7957 | err = pci_cleanup_aer_uncorrect_error_status(pdev); | |
7958 | if (err) { | |
849c4542 ET |
7959 | e_dev_err("pci_cleanup_aer_uncorrect_error_status " |
7960 | "failed 0x%0x\n", err); | |
6fabd715 PWJ |
7961 | /* non-fatal, continue */ |
7962 | } | |
9a799d71 | 7963 | |
6fabd715 | 7964 | return result; |
9a799d71 AK |
7965 | } |
7966 | ||
7967 | /** | |
7968 | * ixgbe_io_resume - called when traffic can start flowing again. | |
7969 | * @pdev: Pointer to PCI device | |
7970 | * | |
7971 | * This callback is called when the error recovery driver tells us that | |
7972 | * its OK to resume normal operation. | |
7973 | */ | |
7974 | static void ixgbe_io_resume(struct pci_dev *pdev) | |
7975 | { | |
c60fbb00 AD |
7976 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
7977 | struct net_device *netdev = adapter->netdev; | |
9a799d71 | 7978 | |
83c61fa9 GR |
7979 | #ifdef CONFIG_PCI_IOV |
7980 | if (adapter->vferr_refcount) { | |
7981 | e_info(drv, "Resuming after VF err\n"); | |
7982 | adapter->vferr_refcount--; | |
7983 | return; | |
7984 | } | |
7985 | ||
7986 | #endif | |
c7ccde0f AD |
7987 | if (netif_running(netdev)) |
7988 | ixgbe_up(adapter); | |
9a799d71 AK |
7989 | |
7990 | netif_device_attach(netdev); | |
9a799d71 AK |
7991 | } |
7992 | ||
7993 | static struct pci_error_handlers ixgbe_err_handler = { | |
7994 | .error_detected = ixgbe_io_error_detected, | |
7995 | .slot_reset = ixgbe_io_slot_reset, | |
7996 | .resume = ixgbe_io_resume, | |
7997 | }; | |
7998 | ||
7999 | static struct pci_driver ixgbe_driver = { | |
8000 | .name = ixgbe_driver_name, | |
8001 | .id_table = ixgbe_pci_tbl, | |
8002 | .probe = ixgbe_probe, | |
8003 | .remove = __devexit_p(ixgbe_remove), | |
8004 | #ifdef CONFIG_PM | |
8005 | .suspend = ixgbe_suspend, | |
8006 | .resume = ixgbe_resume, | |
8007 | #endif | |
8008 | .shutdown = ixgbe_shutdown, | |
8009 | .err_handler = &ixgbe_err_handler | |
8010 | }; | |
8011 | ||
8012 | /** | |
8013 | * ixgbe_init_module - Driver Registration Routine | |
8014 | * | |
8015 | * ixgbe_init_module is the first routine called when the driver is | |
8016 | * loaded. All it does is register with the PCI subsystem. | |
8017 | **/ | |
8018 | static int __init ixgbe_init_module(void) | |
8019 | { | |
8020 | int ret; | |
c7689578 | 8021 | pr_info("%s - version %s\n", ixgbe_driver_string, ixgbe_driver_version); |
849c4542 | 8022 | pr_info("%s\n", ixgbe_copyright); |
9a799d71 | 8023 | |
5dd2d332 | 8024 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd | 8025 | dca_register_notify(&dca_notifier); |
bd0362dd | 8026 | #endif |
5dd2d332 | 8027 | |
9a799d71 AK |
8028 | ret = pci_register_driver(&ixgbe_driver); |
8029 | return ret; | |
8030 | } | |
b4617240 | 8031 | |
9a799d71 AK |
8032 | module_init(ixgbe_init_module); |
8033 | ||
8034 | /** | |
8035 | * ixgbe_exit_module - Driver Exit Cleanup Routine | |
8036 | * | |
8037 | * ixgbe_exit_module is called just before the driver is removed | |
8038 | * from memory. | |
8039 | **/ | |
8040 | static void __exit ixgbe_exit_module(void) | |
8041 | { | |
5dd2d332 | 8042 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd JC |
8043 | dca_unregister_notify(&dca_notifier); |
8044 | #endif | |
9a799d71 | 8045 | pci_unregister_driver(&ixgbe_driver); |
1a51502b | 8046 | rcu_barrier(); /* Wait for completion of call_rcu()'s */ |
9a799d71 | 8047 | } |
bd0362dd | 8048 | |
5dd2d332 | 8049 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd | 8050 | static int ixgbe_notify_dca(struct notifier_block *nb, unsigned long event, |
e8e9f696 | 8051 | void *p) |
bd0362dd JC |
8052 | { |
8053 | int ret_val; | |
8054 | ||
8055 | ret_val = driver_for_each_device(&ixgbe_driver.driver, NULL, &event, | |
e8e9f696 | 8056 | __ixgbe_notify_dca); |
bd0362dd JC |
8057 | |
8058 | return ret_val ? NOTIFY_BAD : NOTIFY_DONE; | |
8059 | } | |
b453368d | 8060 | |
5dd2d332 | 8061 | #endif /* CONFIG_IXGBE_DCA */ |
849c4542 | 8062 | |
9a799d71 AK |
8063 | module_exit(ixgbe_exit_module); |
8064 | ||
8065 | /* ixgbe_main.c */ |