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9a799d71 AK |
1 | /******************************************************************************* |
2 | ||
3 | Intel 10 Gigabit PCI Express Linux driver | |
434c5e39 | 4 | Copyright(c) 1999 - 2013 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> |
815cccbf | 47 | #include <linux/if_bridge.h> |
70c71606 | 48 | #include <linux/prefetch.h> |
eacd73f7 | 49 | #include <scsi/fc/fc_fcoe.h> |
9a799d71 AK |
50 | |
51 | #include "ixgbe.h" | |
52 | #include "ixgbe_common.h" | |
ee5f784a | 53 | #include "ixgbe_dcb_82599.h" |
1cdd1ec8 | 54 | #include "ixgbe_sriov.h" |
9a799d71 AK |
55 | |
56 | char ixgbe_driver_name[] = "ixgbe"; | |
9c8eb720 | 57 | static const char ixgbe_driver_string[] = |
e8e9f696 | 58 | "Intel(R) 10 Gigabit PCI Express Network Driver"; |
8af3c33f | 59 | #ifdef IXGBE_FCOE |
ea81875a NP |
60 | char ixgbe_default_device_descr[] = |
61 | "Intel(R) 10 Gigabit Network Connection"; | |
8af3c33f JK |
62 | #else |
63 | static char ixgbe_default_device_descr[] = | |
64 | "Intel(R) 10 Gigabit Network Connection"; | |
65 | #endif | |
14a8d4bb | 66 | #define DRV_VERSION "3.11.33-k" |
9c8eb720 | 67 | const char ixgbe_driver_version[] = DRV_VERSION; |
a52055e0 | 68 | static const char ixgbe_copyright[] = |
434c5e39 | 69 | "Copyright (c) 1999-2013 Intel Corporation."; |
9a799d71 AK |
70 | |
71 | static const struct ixgbe_info *ixgbe_info_tbl[] = { | |
b4617240 | 72 | [board_82598] = &ixgbe_82598_info, |
e8e26350 | 73 | [board_82599] = &ixgbe_82599_info, |
fe15e8e1 | 74 | [board_X540] = &ixgbe_X540_info, |
9a799d71 AK |
75 | }; |
76 | ||
77 | /* ixgbe_pci_tbl - PCI Device ID Table | |
78 | * | |
79 | * Wildcard entries (PCI_ANY_ID) should come last | |
80 | * Last entry must be all 0s | |
81 | * | |
82 | * { Vendor ID, Device ID, SubVendor ID, SubDevice ID, | |
83 | * Class, Class Mask, private data (not used) } | |
84 | */ | |
a3aa1884 | 85 | static DEFINE_PCI_DEVICE_TABLE(ixgbe_pci_tbl) = { |
54239c67 AD |
86 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598), board_82598 }, |
87 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_DUAL_PORT), board_82598 }, | |
88 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_SINGLE_PORT), board_82598 }, | |
89 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AT), board_82598 }, | |
90 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AT2), board_82598 }, | |
91 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_CX4), board_82598 }, | |
92 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_CX4_DUAL_PORT), board_82598 }, | |
93 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_DA_DUAL_PORT), board_82598 }, | |
94 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM), board_82598 }, | |
95 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_XF_LR), board_82598 }, | |
96 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_SFP_LOM), board_82598 }, | |
97 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_BX), board_82598 }, | |
98 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4), board_82599 }, | |
99 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_XAUI_LOM), board_82599 }, | |
100 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KR), board_82599 }, | |
101 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP), board_82599 }, | |
102 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_EM), board_82599 }, | |
103 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4_MEZZ), board_82599 }, | |
104 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_CX4), board_82599 }, | |
105 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_BACKPLANE_FCOE), board_82599 }, | |
106 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_FCOE), board_82599 }, | |
107 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_T3_LOM), board_82599 }, | |
108 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_COMBO_BACKPLANE), board_82599 }, | |
109 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X540T), board_X540 }, | |
110 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_SF2), board_82599 }, | |
111 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_LS), board_82599 }, | |
7d145282 | 112 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599EN_SFP), board_82599 }, |
9e791e4a | 113 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP_SF_QP), board_82599 }, |
df376f0d | 114 | {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_X540T1), board_X540 }, |
9a799d71 AK |
115 | /* required last entry */ |
116 | {0, } | |
117 | }; | |
118 | MODULE_DEVICE_TABLE(pci, ixgbe_pci_tbl); | |
119 | ||
5dd2d332 | 120 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd | 121 | static int ixgbe_notify_dca(struct notifier_block *, unsigned long event, |
e8e9f696 | 122 | void *p); |
bd0362dd JC |
123 | static struct notifier_block dca_notifier = { |
124 | .notifier_call = ixgbe_notify_dca, | |
125 | .next = NULL, | |
126 | .priority = 0 | |
127 | }; | |
128 | #endif | |
129 | ||
1cdd1ec8 GR |
130 | #ifdef CONFIG_PCI_IOV |
131 | static unsigned int max_vfs; | |
132 | module_param(max_vfs, uint, 0); | |
e8e9f696 | 133 | MODULE_PARM_DESC(max_vfs, |
6b42a9c5 | 134 | "Maximum number of virtual functions to allocate per physical function - default is zero and maximum value is 63"); |
1cdd1ec8 GR |
135 | #endif /* CONFIG_PCI_IOV */ |
136 | ||
8ef78adc PWJ |
137 | static unsigned int allow_unsupported_sfp; |
138 | module_param(allow_unsupported_sfp, uint, 0); | |
139 | MODULE_PARM_DESC(allow_unsupported_sfp, | |
140 | "Allow unsupported and untested SFP+ modules on 82599-based adapters"); | |
141 | ||
b3f4d599 | 142 | #define DEFAULT_MSG_ENABLE (NETIF_MSG_DRV|NETIF_MSG_PROBE|NETIF_MSG_LINK) |
143 | static int debug = -1; | |
144 | module_param(debug, int, 0); | |
145 | MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); | |
146 | ||
9a799d71 AK |
147 | MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>"); |
148 | MODULE_DESCRIPTION("Intel(R) 10 Gigabit PCI Express Network Driver"); | |
149 | MODULE_LICENSE("GPL"); | |
150 | MODULE_VERSION(DRV_VERSION); | |
151 | ||
7086400d AD |
152 | static void ixgbe_service_event_schedule(struct ixgbe_adapter *adapter) |
153 | { | |
154 | if (!test_bit(__IXGBE_DOWN, &adapter->state) && | |
155 | !test_and_set_bit(__IXGBE_SERVICE_SCHED, &adapter->state)) | |
156 | schedule_work(&adapter->service_task); | |
157 | } | |
158 | ||
159 | static void ixgbe_service_event_complete(struct ixgbe_adapter *adapter) | |
160 | { | |
161 | BUG_ON(!test_bit(__IXGBE_SERVICE_SCHED, &adapter->state)); | |
162 | ||
52f33af8 | 163 | /* flush memory to make sure state is correct before next watchdog */ |
7086400d AD |
164 | smp_mb__before_clear_bit(); |
165 | clear_bit(__IXGBE_SERVICE_SCHED, &adapter->state); | |
166 | } | |
167 | ||
dcd79aeb TI |
168 | struct ixgbe_reg_info { |
169 | u32 ofs; | |
170 | char *name; | |
171 | }; | |
172 | ||
173 | static const struct ixgbe_reg_info ixgbe_reg_info_tbl[] = { | |
174 | ||
175 | /* General Registers */ | |
176 | {IXGBE_CTRL, "CTRL"}, | |
177 | {IXGBE_STATUS, "STATUS"}, | |
178 | {IXGBE_CTRL_EXT, "CTRL_EXT"}, | |
179 | ||
180 | /* Interrupt Registers */ | |
181 | {IXGBE_EICR, "EICR"}, | |
182 | ||
183 | /* RX Registers */ | |
184 | {IXGBE_SRRCTL(0), "SRRCTL"}, | |
185 | {IXGBE_DCA_RXCTRL(0), "DRXCTL"}, | |
186 | {IXGBE_RDLEN(0), "RDLEN"}, | |
187 | {IXGBE_RDH(0), "RDH"}, | |
188 | {IXGBE_RDT(0), "RDT"}, | |
189 | {IXGBE_RXDCTL(0), "RXDCTL"}, | |
190 | {IXGBE_RDBAL(0), "RDBAL"}, | |
191 | {IXGBE_RDBAH(0), "RDBAH"}, | |
192 | ||
193 | /* TX Registers */ | |
194 | {IXGBE_TDBAL(0), "TDBAL"}, | |
195 | {IXGBE_TDBAH(0), "TDBAH"}, | |
196 | {IXGBE_TDLEN(0), "TDLEN"}, | |
197 | {IXGBE_TDH(0), "TDH"}, | |
198 | {IXGBE_TDT(0), "TDT"}, | |
199 | {IXGBE_TXDCTL(0), "TXDCTL"}, | |
200 | ||
201 | /* List Terminator */ | |
202 | {} | |
203 | }; | |
204 | ||
205 | ||
206 | /* | |
207 | * ixgbe_regdump - register printout routine | |
208 | */ | |
209 | static void ixgbe_regdump(struct ixgbe_hw *hw, struct ixgbe_reg_info *reginfo) | |
210 | { | |
211 | int i = 0, j = 0; | |
212 | char rname[16]; | |
213 | u32 regs[64]; | |
214 | ||
215 | switch (reginfo->ofs) { | |
216 | case IXGBE_SRRCTL(0): | |
217 | for (i = 0; i < 64; i++) | |
218 | regs[i] = IXGBE_READ_REG(hw, IXGBE_SRRCTL(i)); | |
219 | break; | |
220 | case IXGBE_DCA_RXCTRL(0): | |
221 | for (i = 0; i < 64; i++) | |
222 | regs[i] = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i)); | |
223 | break; | |
224 | case IXGBE_RDLEN(0): | |
225 | for (i = 0; i < 64; i++) | |
226 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDLEN(i)); | |
227 | break; | |
228 | case IXGBE_RDH(0): | |
229 | for (i = 0; i < 64; i++) | |
230 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDH(i)); | |
231 | break; | |
232 | case IXGBE_RDT(0): | |
233 | for (i = 0; i < 64; i++) | |
234 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDT(i)); | |
235 | break; | |
236 | case IXGBE_RXDCTL(0): | |
237 | for (i = 0; i < 64; i++) | |
238 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i)); | |
239 | break; | |
240 | case IXGBE_RDBAL(0): | |
241 | for (i = 0; i < 64; i++) | |
242 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDBAL(i)); | |
243 | break; | |
244 | case IXGBE_RDBAH(0): | |
245 | for (i = 0; i < 64; i++) | |
246 | regs[i] = IXGBE_READ_REG(hw, IXGBE_RDBAH(i)); | |
247 | break; | |
248 | case IXGBE_TDBAL(0): | |
249 | for (i = 0; i < 64; i++) | |
250 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDBAL(i)); | |
251 | break; | |
252 | case IXGBE_TDBAH(0): | |
253 | for (i = 0; i < 64; i++) | |
254 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDBAH(i)); | |
255 | break; | |
256 | case IXGBE_TDLEN(0): | |
257 | for (i = 0; i < 64; i++) | |
258 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDLEN(i)); | |
259 | break; | |
260 | case IXGBE_TDH(0): | |
261 | for (i = 0; i < 64; i++) | |
262 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDH(i)); | |
263 | break; | |
264 | case IXGBE_TDT(0): | |
265 | for (i = 0; i < 64; i++) | |
266 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TDT(i)); | |
267 | break; | |
268 | case IXGBE_TXDCTL(0): | |
269 | for (i = 0; i < 64; i++) | |
270 | regs[i] = IXGBE_READ_REG(hw, IXGBE_TXDCTL(i)); | |
271 | break; | |
272 | default: | |
c7689578 | 273 | pr_info("%-15s %08x\n", reginfo->name, |
dcd79aeb TI |
274 | IXGBE_READ_REG(hw, reginfo->ofs)); |
275 | return; | |
276 | } | |
277 | ||
278 | for (i = 0; i < 8; i++) { | |
279 | snprintf(rname, 16, "%s[%d-%d]", reginfo->name, i*8, i*8+7); | |
c7689578 | 280 | pr_err("%-15s", rname); |
dcd79aeb | 281 | for (j = 0; j < 8; j++) |
c7689578 JP |
282 | pr_cont(" %08x", regs[i*8+j]); |
283 | pr_cont("\n"); | |
dcd79aeb TI |
284 | } |
285 | ||
286 | } | |
287 | ||
288 | /* | |
289 | * ixgbe_dump - Print registers, tx-rings and rx-rings | |
290 | */ | |
291 | static void ixgbe_dump(struct ixgbe_adapter *adapter) | |
292 | { | |
293 | struct net_device *netdev = adapter->netdev; | |
294 | struct ixgbe_hw *hw = &adapter->hw; | |
295 | struct ixgbe_reg_info *reginfo; | |
296 | int n = 0; | |
297 | struct ixgbe_ring *tx_ring; | |
729739b7 | 298 | struct ixgbe_tx_buffer *tx_buffer; |
dcd79aeb TI |
299 | union ixgbe_adv_tx_desc *tx_desc; |
300 | struct my_u0 { u64 a; u64 b; } *u0; | |
301 | struct ixgbe_ring *rx_ring; | |
302 | union ixgbe_adv_rx_desc *rx_desc; | |
303 | struct ixgbe_rx_buffer *rx_buffer_info; | |
304 | u32 staterr; | |
305 | int i = 0; | |
306 | ||
307 | if (!netif_msg_hw(adapter)) | |
308 | return; | |
309 | ||
310 | /* Print netdevice Info */ | |
311 | if (netdev) { | |
312 | dev_info(&adapter->pdev->dev, "Net device Info\n"); | |
c7689578 | 313 | pr_info("Device Name state " |
dcd79aeb | 314 | "trans_start last_rx\n"); |
c7689578 JP |
315 | pr_info("%-15s %016lX %016lX %016lX\n", |
316 | netdev->name, | |
317 | netdev->state, | |
318 | netdev->trans_start, | |
319 | netdev->last_rx); | |
dcd79aeb TI |
320 | } |
321 | ||
322 | /* Print Registers */ | |
323 | dev_info(&adapter->pdev->dev, "Register Dump\n"); | |
c7689578 | 324 | pr_info(" Register Name Value\n"); |
dcd79aeb TI |
325 | for (reginfo = (struct ixgbe_reg_info *)ixgbe_reg_info_tbl; |
326 | reginfo->name; reginfo++) { | |
327 | ixgbe_regdump(hw, reginfo); | |
328 | } | |
329 | ||
330 | /* Print TX Ring Summary */ | |
331 | if (!netdev || !netif_running(netdev)) | |
332 | goto exit; | |
333 | ||
334 | dev_info(&adapter->pdev->dev, "TX Rings Summary\n"); | |
8ad88e37 JH |
335 | pr_info(" %s %s %s %s\n", |
336 | "Queue [NTU] [NTC] [bi(ntc)->dma ]", | |
337 | "leng", "ntw", "timestamp"); | |
dcd79aeb TI |
338 | for (n = 0; n < adapter->num_tx_queues; n++) { |
339 | tx_ring = adapter->tx_ring[n]; | |
729739b7 | 340 | tx_buffer = &tx_ring->tx_buffer_info[tx_ring->next_to_clean]; |
8ad88e37 | 341 | pr_info(" %5d %5X %5X %016llX %08X %p %016llX\n", |
dcd79aeb | 342 | n, tx_ring->next_to_use, tx_ring->next_to_clean, |
729739b7 AD |
343 | (u64)dma_unmap_addr(tx_buffer, dma), |
344 | dma_unmap_len(tx_buffer, len), | |
345 | tx_buffer->next_to_watch, | |
346 | (u64)tx_buffer->time_stamp); | |
dcd79aeb TI |
347 | } |
348 | ||
349 | /* Print TX Rings */ | |
350 | if (!netif_msg_tx_done(adapter)) | |
351 | goto rx_ring_summary; | |
352 | ||
353 | dev_info(&adapter->pdev->dev, "TX Rings Dump\n"); | |
354 | ||
355 | /* Transmit Descriptor Formats | |
356 | * | |
39ac868a | 357 | * 82598 Advanced Transmit Descriptor |
dcd79aeb TI |
358 | * +--------------------------------------------------------------+ |
359 | * 0 | Buffer Address [63:0] | | |
360 | * +--------------------------------------------------------------+ | |
39ac868a | 361 | * 8 | PAYLEN | POPTS | IDX | STA | DCMD |DTYP | RSV | DTALEN | |
dcd79aeb TI |
362 | * +--------------------------------------------------------------+ |
363 | * 63 46 45 40 39 36 35 32 31 24 23 20 19 0 | |
39ac868a JH |
364 | * |
365 | * 82598 Advanced Transmit Descriptor (Write-Back Format) | |
366 | * +--------------------------------------------------------------+ | |
367 | * 0 | RSV [63:0] | | |
368 | * +--------------------------------------------------------------+ | |
369 | * 8 | RSV | STA | NXTSEQ | | |
370 | * +--------------------------------------------------------------+ | |
371 | * 63 36 35 32 31 0 | |
372 | * | |
373 | * 82599+ Advanced Transmit Descriptor | |
374 | * +--------------------------------------------------------------+ | |
375 | * 0 | Buffer Address [63:0] | | |
376 | * +--------------------------------------------------------------+ | |
377 | * 8 |PAYLEN |POPTS|CC|IDX |STA |DCMD |DTYP |MAC |RSV |DTALEN | | |
378 | * +--------------------------------------------------------------+ | |
379 | * 63 46 45 40 39 38 36 35 32 31 24 23 20 19 18 17 16 15 0 | |
380 | * | |
381 | * 82599+ Advanced Transmit Descriptor (Write-Back Format) | |
382 | * +--------------------------------------------------------------+ | |
383 | * 0 | RSV [63:0] | | |
384 | * +--------------------------------------------------------------+ | |
385 | * 8 | RSV | STA | RSV | | |
386 | * +--------------------------------------------------------------+ | |
387 | * 63 36 35 32 31 0 | |
dcd79aeb TI |
388 | */ |
389 | ||
390 | for (n = 0; n < adapter->num_tx_queues; n++) { | |
391 | tx_ring = adapter->tx_ring[n]; | |
c7689578 JP |
392 | pr_info("------------------------------------\n"); |
393 | pr_info("TX QUEUE INDEX = %d\n", tx_ring->queue_index); | |
394 | pr_info("------------------------------------\n"); | |
8ad88e37 JH |
395 | pr_info("%s%s %s %s %s %s\n", |
396 | "T [desc] [address 63:0 ] ", | |
397 | "[PlPOIdStDDt Ln] [bi->dma ] ", | |
398 | "leng", "ntw", "timestamp", "bi->skb"); | |
dcd79aeb TI |
399 | |
400 | for (i = 0; tx_ring->desc && (i < tx_ring->count); i++) { | |
e4f74028 | 401 | tx_desc = IXGBE_TX_DESC(tx_ring, i); |
729739b7 | 402 | tx_buffer = &tx_ring->tx_buffer_info[i]; |
dcd79aeb | 403 | u0 = (struct my_u0 *)tx_desc; |
8ad88e37 JH |
404 | if (dma_unmap_len(tx_buffer, len) > 0) { |
405 | pr_info("T [0x%03X] %016llX %016llX %016llX %08X %p %016llX %p", | |
406 | i, | |
407 | le64_to_cpu(u0->a), | |
408 | le64_to_cpu(u0->b), | |
409 | (u64)dma_unmap_addr(tx_buffer, dma), | |
729739b7 | 410 | dma_unmap_len(tx_buffer, len), |
8ad88e37 JH |
411 | tx_buffer->next_to_watch, |
412 | (u64)tx_buffer->time_stamp, | |
413 | tx_buffer->skb); | |
414 | if (i == tx_ring->next_to_use && | |
415 | i == tx_ring->next_to_clean) | |
416 | pr_cont(" NTC/U\n"); | |
417 | else if (i == tx_ring->next_to_use) | |
418 | pr_cont(" NTU\n"); | |
419 | else if (i == tx_ring->next_to_clean) | |
420 | pr_cont(" NTC\n"); | |
421 | else | |
422 | pr_cont("\n"); | |
423 | ||
424 | if (netif_msg_pktdata(adapter) && | |
425 | tx_buffer->skb) | |
426 | print_hex_dump(KERN_INFO, "", | |
427 | DUMP_PREFIX_ADDRESS, 16, 1, | |
428 | tx_buffer->skb->data, | |
429 | dma_unmap_len(tx_buffer, len), | |
430 | true); | |
431 | } | |
dcd79aeb TI |
432 | } |
433 | } | |
434 | ||
435 | /* Print RX Rings Summary */ | |
436 | rx_ring_summary: | |
437 | dev_info(&adapter->pdev->dev, "RX Rings Summary\n"); | |
c7689578 | 438 | pr_info("Queue [NTU] [NTC]\n"); |
dcd79aeb TI |
439 | for (n = 0; n < adapter->num_rx_queues; n++) { |
440 | rx_ring = adapter->rx_ring[n]; | |
c7689578 JP |
441 | pr_info("%5d %5X %5X\n", |
442 | n, rx_ring->next_to_use, rx_ring->next_to_clean); | |
dcd79aeb TI |
443 | } |
444 | ||
445 | /* Print RX Rings */ | |
446 | if (!netif_msg_rx_status(adapter)) | |
447 | goto exit; | |
448 | ||
449 | dev_info(&adapter->pdev->dev, "RX Rings Dump\n"); | |
450 | ||
39ac868a JH |
451 | /* Receive Descriptor Formats |
452 | * | |
453 | * 82598 Advanced Receive Descriptor (Read) Format | |
dcd79aeb TI |
454 | * 63 1 0 |
455 | * +-----------------------------------------------------+ | |
456 | * 0 | Packet Buffer Address [63:1] |A0/NSE| | |
457 | * +----------------------------------------------+------+ | |
458 | * 8 | Header Buffer Address [63:1] | DD | | |
459 | * +-----------------------------------------------------+ | |
460 | * | |
461 | * | |
39ac868a | 462 | * 82598 Advanced Receive Descriptor (Write-Back) Format |
dcd79aeb TI |
463 | * |
464 | * 63 48 47 32 31 30 21 20 16 15 4 3 0 | |
465 | * +------------------------------------------------------+ | |
39ac868a JH |
466 | * 0 | RSS Hash / |SPH| HDR_LEN | RSV |Packet| RSS | |
467 | * | Packet | IP | | | | Type | Type | | |
468 | * | Checksum | Ident | | | | | | | |
dcd79aeb TI |
469 | * +------------------------------------------------------+ |
470 | * 8 | VLAN Tag | Length | Extended Error | Extended Status | | |
471 | * +------------------------------------------------------+ | |
472 | * 63 48 47 32 31 20 19 0 | |
39ac868a JH |
473 | * |
474 | * 82599+ Advanced Receive Descriptor (Read) Format | |
475 | * 63 1 0 | |
476 | * +-----------------------------------------------------+ | |
477 | * 0 | Packet Buffer Address [63:1] |A0/NSE| | |
478 | * +----------------------------------------------+------+ | |
479 | * 8 | Header Buffer Address [63:1] | DD | | |
480 | * +-----------------------------------------------------+ | |
481 | * | |
482 | * | |
483 | * 82599+ Advanced Receive Descriptor (Write-Back) Format | |
484 | * | |
485 | * 63 48 47 32 31 30 21 20 17 16 4 3 0 | |
486 | * +------------------------------------------------------+ | |
487 | * 0 |RSS / Frag Checksum|SPH| HDR_LEN |RSC- |Packet| RSS | | |
488 | * |/ RTT / PCoE_PARAM | | | CNT | Type | Type | | |
489 | * |/ Flow Dir Flt ID | | | | | | | |
490 | * +------------------------------------------------------+ | |
491 | * 8 | VLAN Tag | Length |Extended Error| Xtnd Status/NEXTP | | |
492 | * +------------------------------------------------------+ | |
493 | * 63 48 47 32 31 20 19 0 | |
dcd79aeb | 494 | */ |
39ac868a | 495 | |
dcd79aeb TI |
496 | for (n = 0; n < adapter->num_rx_queues; n++) { |
497 | rx_ring = adapter->rx_ring[n]; | |
c7689578 JP |
498 | pr_info("------------------------------------\n"); |
499 | pr_info("RX QUEUE INDEX = %d\n", rx_ring->queue_index); | |
500 | pr_info("------------------------------------\n"); | |
8ad88e37 JH |
501 | pr_info("%s%s%s", |
502 | "R [desc] [ PktBuf A0] ", | |
503 | "[ HeadBuf DD] [bi->dma ] [bi->skb ] ", | |
dcd79aeb | 504 | "<-- Adv Rx Read format\n"); |
8ad88e37 JH |
505 | pr_info("%s%s%s", |
506 | "RWB[desc] [PcsmIpSHl PtRs] ", | |
507 | "[vl er S cks ln] ---------------- [bi->skb ] ", | |
dcd79aeb TI |
508 | "<-- Adv Rx Write-Back format\n"); |
509 | ||
510 | for (i = 0; i < rx_ring->count; i++) { | |
511 | rx_buffer_info = &rx_ring->rx_buffer_info[i]; | |
e4f74028 | 512 | rx_desc = IXGBE_RX_DESC(rx_ring, i); |
dcd79aeb TI |
513 | u0 = (struct my_u0 *)rx_desc; |
514 | staterr = le32_to_cpu(rx_desc->wb.upper.status_error); | |
515 | if (staterr & IXGBE_RXD_STAT_DD) { | |
516 | /* Descriptor Done */ | |
c7689578 | 517 | pr_info("RWB[0x%03X] %016llX " |
dcd79aeb TI |
518 | "%016llX ---------------- %p", i, |
519 | le64_to_cpu(u0->a), | |
520 | le64_to_cpu(u0->b), | |
521 | rx_buffer_info->skb); | |
522 | } else { | |
c7689578 | 523 | pr_info("R [0x%03X] %016llX " |
dcd79aeb TI |
524 | "%016llX %016llX %p", i, |
525 | le64_to_cpu(u0->a), | |
526 | le64_to_cpu(u0->b), | |
527 | (u64)rx_buffer_info->dma, | |
528 | rx_buffer_info->skb); | |
529 | ||
9c50c035 ET |
530 | if (netif_msg_pktdata(adapter) && |
531 | rx_buffer_info->dma) { | |
dcd79aeb TI |
532 | print_hex_dump(KERN_INFO, "", |
533 | DUMP_PREFIX_ADDRESS, 16, 1, | |
9c50c035 ET |
534 | page_address(rx_buffer_info->page) + |
535 | rx_buffer_info->page_offset, | |
f800326d | 536 | ixgbe_rx_bufsz(rx_ring), true); |
dcd79aeb TI |
537 | } |
538 | } | |
539 | ||
540 | if (i == rx_ring->next_to_use) | |
c7689578 | 541 | pr_cont(" NTU\n"); |
dcd79aeb | 542 | else if (i == rx_ring->next_to_clean) |
c7689578 | 543 | pr_cont(" NTC\n"); |
dcd79aeb | 544 | else |
c7689578 | 545 | pr_cont("\n"); |
dcd79aeb TI |
546 | |
547 | } | |
548 | } | |
549 | ||
550 | exit: | |
551 | return; | |
552 | } | |
553 | ||
5eba3699 AV |
554 | static void ixgbe_release_hw_control(struct ixgbe_adapter *adapter) |
555 | { | |
556 | u32 ctrl_ext; | |
557 | ||
558 | /* Let firmware take over control of h/w */ | |
559 | ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT); | |
560 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT, | |
e8e9f696 | 561 | ctrl_ext & ~IXGBE_CTRL_EXT_DRV_LOAD); |
5eba3699 AV |
562 | } |
563 | ||
564 | static void ixgbe_get_hw_control(struct ixgbe_adapter *adapter) | |
565 | { | |
566 | u32 ctrl_ext; | |
567 | ||
568 | /* Let firmware know the driver has taken over */ | |
569 | ctrl_ext = IXGBE_READ_REG(&adapter->hw, IXGBE_CTRL_EXT); | |
570 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_CTRL_EXT, | |
e8e9f696 | 571 | ctrl_ext | IXGBE_CTRL_EXT_DRV_LOAD); |
5eba3699 | 572 | } |
9a799d71 | 573 | |
49ce9c2c | 574 | /** |
e8e26350 PW |
575 | * ixgbe_set_ivar - set the IVAR registers, mapping interrupt causes to vectors |
576 | * @adapter: pointer to adapter struct | |
577 | * @direction: 0 for Rx, 1 for Tx, -1 for other causes | |
578 | * @queue: queue to map the corresponding interrupt to | |
579 | * @msix_vector: the vector to map to the corresponding queue | |
580 | * | |
581 | */ | |
582 | static void ixgbe_set_ivar(struct ixgbe_adapter *adapter, s8 direction, | |
e8e9f696 | 583 | u8 queue, u8 msix_vector) |
9a799d71 AK |
584 | { |
585 | u32 ivar, index; | |
e8e26350 PW |
586 | struct ixgbe_hw *hw = &adapter->hw; |
587 | switch (hw->mac.type) { | |
588 | case ixgbe_mac_82598EB: | |
589 | msix_vector |= IXGBE_IVAR_ALLOC_VAL; | |
590 | if (direction == -1) | |
591 | direction = 0; | |
592 | index = (((direction * 64) + queue) >> 2) & 0x1F; | |
593 | ivar = IXGBE_READ_REG(hw, IXGBE_IVAR(index)); | |
594 | ivar &= ~(0xFF << (8 * (queue & 0x3))); | |
595 | ivar |= (msix_vector << (8 * (queue & 0x3))); | |
596 | IXGBE_WRITE_REG(hw, IXGBE_IVAR(index), ivar); | |
597 | break; | |
598 | case ixgbe_mac_82599EB: | |
b93a2226 | 599 | case ixgbe_mac_X540: |
e8e26350 PW |
600 | if (direction == -1) { |
601 | /* other causes */ | |
602 | msix_vector |= IXGBE_IVAR_ALLOC_VAL; | |
603 | index = ((queue & 1) * 8); | |
604 | ivar = IXGBE_READ_REG(&adapter->hw, IXGBE_IVAR_MISC); | |
605 | ivar &= ~(0xFF << index); | |
606 | ivar |= (msix_vector << index); | |
607 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_IVAR_MISC, ivar); | |
608 | break; | |
609 | } else { | |
610 | /* tx or rx causes */ | |
611 | msix_vector |= IXGBE_IVAR_ALLOC_VAL; | |
612 | index = ((16 * (queue & 1)) + (8 * direction)); | |
613 | ivar = IXGBE_READ_REG(hw, IXGBE_IVAR(queue >> 1)); | |
614 | ivar &= ~(0xFF << index); | |
615 | ivar |= (msix_vector << index); | |
616 | IXGBE_WRITE_REG(hw, IXGBE_IVAR(queue >> 1), ivar); | |
617 | break; | |
618 | } | |
619 | default: | |
620 | break; | |
621 | } | |
9a799d71 AK |
622 | } |
623 | ||
fe49f04a | 624 | static inline void ixgbe_irq_rearm_queues(struct ixgbe_adapter *adapter, |
e8e9f696 | 625 | u64 qmask) |
fe49f04a AD |
626 | { |
627 | u32 mask; | |
628 | ||
bd508178 AD |
629 | switch (adapter->hw.mac.type) { |
630 | case ixgbe_mac_82598EB: | |
fe49f04a AD |
631 | mask = (IXGBE_EIMS_RTX_QUEUE & qmask); |
632 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS, mask); | |
bd508178 AD |
633 | break; |
634 | case ixgbe_mac_82599EB: | |
b93a2226 | 635 | case ixgbe_mac_X540: |
fe49f04a AD |
636 | mask = (qmask & 0xFFFFFFFF); |
637 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS_EX(0), mask); | |
638 | mask = (qmask >> 32); | |
639 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS_EX(1), mask); | |
bd508178 AD |
640 | break; |
641 | default: | |
642 | break; | |
fe49f04a AD |
643 | } |
644 | } | |
645 | ||
729739b7 AD |
646 | void ixgbe_unmap_and_free_tx_resource(struct ixgbe_ring *ring, |
647 | struct ixgbe_tx_buffer *tx_buffer) | |
9a799d71 | 648 | { |
729739b7 AD |
649 | if (tx_buffer->skb) { |
650 | dev_kfree_skb_any(tx_buffer->skb); | |
651 | if (dma_unmap_len(tx_buffer, len)) | |
d3d00239 | 652 | dma_unmap_single(ring->dev, |
729739b7 AD |
653 | dma_unmap_addr(tx_buffer, dma), |
654 | dma_unmap_len(tx_buffer, len), | |
655 | DMA_TO_DEVICE); | |
656 | } else if (dma_unmap_len(tx_buffer, len)) { | |
657 | dma_unmap_page(ring->dev, | |
658 | dma_unmap_addr(tx_buffer, dma), | |
659 | dma_unmap_len(tx_buffer, len), | |
660 | DMA_TO_DEVICE); | |
e5a43549 | 661 | } |
729739b7 AD |
662 | tx_buffer->next_to_watch = NULL; |
663 | tx_buffer->skb = NULL; | |
664 | dma_unmap_len_set(tx_buffer, len, 0); | |
665 | /* tx_buffer must be completely set up in the transmit path */ | |
9a799d71 AK |
666 | } |
667 | ||
943561d3 | 668 | static void ixgbe_update_xoff_rx_lfc(struct ixgbe_adapter *adapter) |
c84d324c JF |
669 | { |
670 | struct ixgbe_hw *hw = &adapter->hw; | |
671 | struct ixgbe_hw_stats *hwstats = &adapter->stats; | |
c84d324c | 672 | int i; |
943561d3 | 673 | u32 data; |
c84d324c | 674 | |
943561d3 AD |
675 | if ((hw->fc.current_mode != ixgbe_fc_full) && |
676 | (hw->fc.current_mode != ixgbe_fc_rx_pause)) | |
677 | return; | |
c84d324c | 678 | |
943561d3 AD |
679 | switch (hw->mac.type) { |
680 | case ixgbe_mac_82598EB: | |
681 | data = IXGBE_READ_REG(hw, IXGBE_LXOFFRXC); | |
682 | break; | |
683 | default: | |
684 | data = IXGBE_READ_REG(hw, IXGBE_LXOFFRXCNT); | |
685 | } | |
686 | hwstats->lxoffrxc += data; | |
c84d324c | 687 | |
943561d3 AD |
688 | /* refill credits (no tx hang) if we received xoff */ |
689 | if (!data) | |
c84d324c | 690 | return; |
943561d3 AD |
691 | |
692 | for (i = 0; i < adapter->num_tx_queues; i++) | |
693 | clear_bit(__IXGBE_HANG_CHECK_ARMED, | |
694 | &adapter->tx_ring[i]->state); | |
695 | } | |
696 | ||
697 | static void ixgbe_update_xoff_received(struct ixgbe_adapter *adapter) | |
698 | { | |
699 | struct ixgbe_hw *hw = &adapter->hw; | |
700 | struct ixgbe_hw_stats *hwstats = &adapter->stats; | |
701 | u32 xoff[8] = {0}; | |
2afaa00d | 702 | u8 tc; |
943561d3 AD |
703 | int i; |
704 | bool pfc_en = adapter->dcb_cfg.pfc_mode_enable; | |
705 | ||
706 | if (adapter->ixgbe_ieee_pfc) | |
707 | pfc_en |= !!(adapter->ixgbe_ieee_pfc->pfc_en); | |
708 | ||
709 | if (!(adapter->flags & IXGBE_FLAG_DCB_ENABLED) || !pfc_en) { | |
710 | ixgbe_update_xoff_rx_lfc(adapter); | |
c84d324c | 711 | return; |
943561d3 | 712 | } |
c84d324c JF |
713 | |
714 | /* update stats for each tc, only valid with PFC enabled */ | |
715 | for (i = 0; i < MAX_TX_PACKET_BUFFERS; i++) { | |
2afaa00d PN |
716 | u32 pxoffrxc; |
717 | ||
c84d324c JF |
718 | switch (hw->mac.type) { |
719 | case ixgbe_mac_82598EB: | |
2afaa00d | 720 | pxoffrxc = IXGBE_READ_REG(hw, IXGBE_PXOFFRXC(i)); |
bd508178 | 721 | break; |
c84d324c | 722 | default: |
2afaa00d | 723 | pxoffrxc = IXGBE_READ_REG(hw, IXGBE_PXOFFRXCNT(i)); |
26f23d82 | 724 | } |
2afaa00d PN |
725 | hwstats->pxoffrxc[i] += pxoffrxc; |
726 | /* Get the TC for given UP */ | |
727 | tc = netdev_get_prio_tc_map(adapter->netdev, i); | |
728 | xoff[tc] += pxoffrxc; | |
c84d324c JF |
729 | } |
730 | ||
731 | /* disarm tx queues that have received xoff frames */ | |
732 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
733 | struct ixgbe_ring *tx_ring = adapter->tx_ring[i]; | |
c84d324c | 734 | |
2afaa00d | 735 | tc = tx_ring->dcb_tc; |
c84d324c JF |
736 | if (xoff[tc]) |
737 | clear_bit(__IXGBE_HANG_CHECK_ARMED, &tx_ring->state); | |
26f23d82 | 738 | } |
26f23d82 YZ |
739 | } |
740 | ||
c84d324c | 741 | static u64 ixgbe_get_tx_completed(struct ixgbe_ring *ring) |
9a799d71 | 742 | { |
7d7ce682 | 743 | return ring->stats.packets; |
c84d324c JF |
744 | } |
745 | ||
746 | static u64 ixgbe_get_tx_pending(struct ixgbe_ring *ring) | |
747 | { | |
748 | struct ixgbe_adapter *adapter = netdev_priv(ring->netdev); | |
e01c31a5 | 749 | struct ixgbe_hw *hw = &adapter->hw; |
e01c31a5 | 750 | |
c84d324c JF |
751 | u32 head = IXGBE_READ_REG(hw, IXGBE_TDH(ring->reg_idx)); |
752 | u32 tail = IXGBE_READ_REG(hw, IXGBE_TDT(ring->reg_idx)); | |
753 | ||
754 | if (head != tail) | |
755 | return (head < tail) ? | |
756 | tail - head : (tail + ring->count - head); | |
757 | ||
758 | return 0; | |
759 | } | |
760 | ||
761 | static inline bool ixgbe_check_tx_hang(struct ixgbe_ring *tx_ring) | |
762 | { | |
763 | u32 tx_done = ixgbe_get_tx_completed(tx_ring); | |
764 | u32 tx_done_old = tx_ring->tx_stats.tx_done_old; | |
765 | u32 tx_pending = ixgbe_get_tx_pending(tx_ring); | |
766 | bool ret = false; | |
767 | ||
7d637bcc | 768 | clear_check_for_tx_hang(tx_ring); |
c84d324c JF |
769 | |
770 | /* | |
771 | * Check for a hung queue, but be thorough. This verifies | |
772 | * that a transmit has been completed since the previous | |
773 | * check AND there is at least one packet pending. The | |
774 | * ARMED bit is set to indicate a potential hang. The | |
775 | * bit is cleared if a pause frame is received to remove | |
776 | * false hang detection due to PFC or 802.3x frames. By | |
777 | * requiring this to fail twice we avoid races with | |
778 | * pfc clearing the ARMED bit and conditions where we | |
779 | * run the check_tx_hang logic with a transmit completion | |
780 | * pending but without time to complete it yet. | |
781 | */ | |
782 | if ((tx_done_old == tx_done) && tx_pending) { | |
783 | /* make sure it is true for two checks in a row */ | |
784 | ret = test_and_set_bit(__IXGBE_HANG_CHECK_ARMED, | |
785 | &tx_ring->state); | |
786 | } else { | |
787 | /* update completed stats and continue */ | |
788 | tx_ring->tx_stats.tx_done_old = tx_done; | |
789 | /* reset the countdown */ | |
790 | clear_bit(__IXGBE_HANG_CHECK_ARMED, &tx_ring->state); | |
9a799d71 AK |
791 | } |
792 | ||
c84d324c | 793 | return ret; |
9a799d71 AK |
794 | } |
795 | ||
c83c6cbd AD |
796 | /** |
797 | * ixgbe_tx_timeout_reset - initiate reset due to Tx timeout | |
798 | * @adapter: driver private struct | |
799 | **/ | |
800 | static void ixgbe_tx_timeout_reset(struct ixgbe_adapter *adapter) | |
801 | { | |
802 | ||
803 | /* Do the reset outside of interrupt context */ | |
804 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { | |
805 | adapter->flags2 |= IXGBE_FLAG2_RESET_REQUESTED; | |
12ff3f3b | 806 | e_warn(drv, "initiating reset due to tx timeout\n"); |
c83c6cbd AD |
807 | ixgbe_service_event_schedule(adapter); |
808 | } | |
809 | } | |
e01c31a5 | 810 | |
9a799d71 AK |
811 | /** |
812 | * ixgbe_clean_tx_irq - Reclaim resources after transmit completes | |
fe49f04a | 813 | * @q_vector: structure containing interrupt and ring information |
e01c31a5 | 814 | * @tx_ring: tx ring to clean |
9a799d71 | 815 | **/ |
fe49f04a | 816 | static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector, |
e8e9f696 | 817 | struct ixgbe_ring *tx_ring) |
9a799d71 | 818 | { |
fe49f04a | 819 | struct ixgbe_adapter *adapter = q_vector->adapter; |
d3d00239 AD |
820 | struct ixgbe_tx_buffer *tx_buffer; |
821 | union ixgbe_adv_tx_desc *tx_desc; | |
e01c31a5 | 822 | unsigned int total_bytes = 0, total_packets = 0; |
59224555 | 823 | unsigned int budget = q_vector->tx.work_limit; |
729739b7 AD |
824 | unsigned int i = tx_ring->next_to_clean; |
825 | ||
826 | if (test_bit(__IXGBE_DOWN, &adapter->state)) | |
827 | return true; | |
9a799d71 | 828 | |
d3d00239 | 829 | tx_buffer = &tx_ring->tx_buffer_info[i]; |
e4f74028 | 830 | tx_desc = IXGBE_TX_DESC(tx_ring, i); |
729739b7 | 831 | i -= tx_ring->count; |
12207e49 | 832 | |
729739b7 | 833 | do { |
d3d00239 AD |
834 | union ixgbe_adv_tx_desc *eop_desc = tx_buffer->next_to_watch; |
835 | ||
836 | /* if next_to_watch is not set then there is no work pending */ | |
837 | if (!eop_desc) | |
838 | break; | |
839 | ||
7f83a9e6 | 840 | /* prevent any other reads prior to eop_desc */ |
7e63bf49 | 841 | read_barrier_depends(); |
7f83a9e6 | 842 | |
d3d00239 AD |
843 | /* if DD is not set pending work has not been completed */ |
844 | if (!(eop_desc->wb.status & cpu_to_le32(IXGBE_TXD_STAT_DD))) | |
845 | break; | |
8ad494b0 | 846 | |
d3d00239 AD |
847 | /* clear next_to_watch to prevent false hangs */ |
848 | tx_buffer->next_to_watch = NULL; | |
8ad494b0 | 849 | |
091a6246 AD |
850 | /* update the statistics for this packet */ |
851 | total_bytes += tx_buffer->bytecount; | |
852 | total_packets += tx_buffer->gso_segs; | |
853 | ||
fd0db0ed AD |
854 | /* free the skb */ |
855 | dev_kfree_skb_any(tx_buffer->skb); | |
856 | ||
729739b7 AD |
857 | /* unmap skb header data */ |
858 | dma_unmap_single(tx_ring->dev, | |
859 | dma_unmap_addr(tx_buffer, dma), | |
860 | dma_unmap_len(tx_buffer, len), | |
861 | DMA_TO_DEVICE); | |
862 | ||
fd0db0ed AD |
863 | /* clear tx_buffer data */ |
864 | tx_buffer->skb = NULL; | |
729739b7 | 865 | dma_unmap_len_set(tx_buffer, len, 0); |
fd0db0ed | 866 | |
729739b7 AD |
867 | /* unmap remaining buffers */ |
868 | while (tx_desc != eop_desc) { | |
d3d00239 AD |
869 | tx_buffer++; |
870 | tx_desc++; | |
8ad494b0 | 871 | i++; |
729739b7 AD |
872 | if (unlikely(!i)) { |
873 | i -= tx_ring->count; | |
d3d00239 | 874 | tx_buffer = tx_ring->tx_buffer_info; |
e4f74028 | 875 | tx_desc = IXGBE_TX_DESC(tx_ring, 0); |
e092be60 | 876 | } |
e01c31a5 | 877 | |
729739b7 AD |
878 | /* unmap any remaining paged data */ |
879 | if (dma_unmap_len(tx_buffer, len)) { | |
880 | dma_unmap_page(tx_ring->dev, | |
881 | dma_unmap_addr(tx_buffer, dma), | |
882 | dma_unmap_len(tx_buffer, len), | |
883 | DMA_TO_DEVICE); | |
884 | dma_unmap_len_set(tx_buffer, len, 0); | |
885 | } | |
886 | } | |
887 | ||
888 | /* move us one more past the eop_desc for start of next pkt */ | |
889 | tx_buffer++; | |
890 | tx_desc++; | |
891 | i++; | |
892 | if (unlikely(!i)) { | |
893 | i -= tx_ring->count; | |
894 | tx_buffer = tx_ring->tx_buffer_info; | |
895 | tx_desc = IXGBE_TX_DESC(tx_ring, 0); | |
896 | } | |
897 | ||
898 | /* issue prefetch for next Tx descriptor */ | |
899 | prefetch(tx_desc); | |
12207e49 | 900 | |
729739b7 AD |
901 | /* update budget accounting */ |
902 | budget--; | |
903 | } while (likely(budget)); | |
904 | ||
905 | i += tx_ring->count; | |
9a799d71 | 906 | tx_ring->next_to_clean = i; |
d3d00239 | 907 | u64_stats_update_begin(&tx_ring->syncp); |
b953799e | 908 | tx_ring->stats.bytes += total_bytes; |
bd198058 | 909 | tx_ring->stats.packets += total_packets; |
d3d00239 | 910 | u64_stats_update_end(&tx_ring->syncp); |
bd198058 AD |
911 | q_vector->tx.total_bytes += total_bytes; |
912 | q_vector->tx.total_packets += total_packets; | |
b953799e | 913 | |
c84d324c JF |
914 | if (check_for_tx_hang(tx_ring) && ixgbe_check_tx_hang(tx_ring)) { |
915 | /* schedule immediate reset if we believe we hung */ | |
916 | struct ixgbe_hw *hw = &adapter->hw; | |
c84d324c JF |
917 | e_err(drv, "Detected Tx Unit Hang\n" |
918 | " Tx Queue <%d>\n" | |
919 | " TDH, TDT <%x>, <%x>\n" | |
920 | " next_to_use <%x>\n" | |
921 | " next_to_clean <%x>\n" | |
922 | "tx_buffer_info[next_to_clean]\n" | |
923 | " time_stamp <%lx>\n" | |
924 | " jiffies <%lx>\n", | |
925 | tx_ring->queue_index, | |
926 | IXGBE_READ_REG(hw, IXGBE_TDH(tx_ring->reg_idx)), | |
927 | IXGBE_READ_REG(hw, IXGBE_TDT(tx_ring->reg_idx)), | |
d3d00239 AD |
928 | tx_ring->next_to_use, i, |
929 | tx_ring->tx_buffer_info[i].time_stamp, jiffies); | |
c84d324c JF |
930 | |
931 | netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index); | |
932 | ||
933 | e_info(probe, | |
934 | "tx hang %d detected on queue %d, resetting adapter\n", | |
935 | adapter->tx_timeout_count + 1, tx_ring->queue_index); | |
936 | ||
b953799e | 937 | /* schedule immediate reset if we believe we hung */ |
c83c6cbd | 938 | ixgbe_tx_timeout_reset(adapter); |
b953799e AD |
939 | |
940 | /* the adapter is about to reset, no point in enabling stuff */ | |
59224555 | 941 | return true; |
b953799e | 942 | } |
9a799d71 | 943 | |
b2d96e0a AD |
944 | netdev_tx_completed_queue(txring_txq(tx_ring), |
945 | total_packets, total_bytes); | |
946 | ||
e092be60 | 947 | #define TX_WAKE_THRESHOLD (DESC_NEEDED * 2) |
30065e63 | 948 | if (unlikely(total_packets && netif_carrier_ok(tx_ring->netdev) && |
7d4987de | 949 | (ixgbe_desc_unused(tx_ring) >= TX_WAKE_THRESHOLD))) { |
e092be60 AV |
950 | /* Make sure that anybody stopping the queue after this |
951 | * sees the new next_to_clean. | |
952 | */ | |
953 | smp_mb(); | |
729739b7 AD |
954 | if (__netif_subqueue_stopped(tx_ring->netdev, |
955 | tx_ring->queue_index) | |
956 | && !test_bit(__IXGBE_DOWN, &adapter->state)) { | |
957 | netif_wake_subqueue(tx_ring->netdev, | |
958 | tx_ring->queue_index); | |
5b7da515 | 959 | ++tx_ring->tx_stats.restart_queue; |
30eba97a | 960 | } |
e092be60 | 961 | } |
9a799d71 | 962 | |
59224555 | 963 | return !!budget; |
9a799d71 AK |
964 | } |
965 | ||
5dd2d332 | 966 | #ifdef CONFIG_IXGBE_DCA |
bdda1a61 AD |
967 | static void ixgbe_update_tx_dca(struct ixgbe_adapter *adapter, |
968 | struct ixgbe_ring *tx_ring, | |
33cf09c9 | 969 | int cpu) |
bd0362dd | 970 | { |
33cf09c9 | 971 | struct ixgbe_hw *hw = &adapter->hw; |
bdda1a61 AD |
972 | u32 txctrl = dca3_get_tag(tx_ring->dev, cpu); |
973 | u16 reg_offset; | |
33cf09c9 | 974 | |
33cf09c9 AD |
975 | switch (hw->mac.type) { |
976 | case ixgbe_mac_82598EB: | |
bdda1a61 | 977 | reg_offset = IXGBE_DCA_TXCTRL(tx_ring->reg_idx); |
33cf09c9 AD |
978 | break; |
979 | case ixgbe_mac_82599EB: | |
b93a2226 | 980 | case ixgbe_mac_X540: |
bdda1a61 AD |
981 | reg_offset = IXGBE_DCA_TXCTRL_82599(tx_ring->reg_idx); |
982 | txctrl <<= IXGBE_DCA_TXCTRL_CPUID_SHIFT_82599; | |
33cf09c9 AD |
983 | break; |
984 | default: | |
bdda1a61 AD |
985 | /* for unknown hardware do not write register */ |
986 | return; | |
bd0362dd | 987 | } |
bdda1a61 AD |
988 | |
989 | /* | |
990 | * We can enable relaxed ordering for reads, but not writes when | |
991 | * DCA is enabled. This is due to a known issue in some chipsets | |
992 | * which will cause the DCA tag to be cleared. | |
993 | */ | |
994 | txctrl |= IXGBE_DCA_TXCTRL_DESC_RRO_EN | | |
995 | IXGBE_DCA_TXCTRL_DATA_RRO_EN | | |
996 | IXGBE_DCA_TXCTRL_DESC_DCA_EN; | |
997 | ||
998 | IXGBE_WRITE_REG(hw, reg_offset, txctrl); | |
bd0362dd JC |
999 | } |
1000 | ||
bdda1a61 AD |
1001 | static void ixgbe_update_rx_dca(struct ixgbe_adapter *adapter, |
1002 | struct ixgbe_ring *rx_ring, | |
33cf09c9 | 1003 | int cpu) |
bd0362dd | 1004 | { |
33cf09c9 | 1005 | struct ixgbe_hw *hw = &adapter->hw; |
bdda1a61 AD |
1006 | u32 rxctrl = dca3_get_tag(rx_ring->dev, cpu); |
1007 | u8 reg_idx = rx_ring->reg_idx; | |
1008 | ||
33cf09c9 AD |
1009 | |
1010 | switch (hw->mac.type) { | |
33cf09c9 | 1011 | case ixgbe_mac_82599EB: |
b93a2226 | 1012 | case ixgbe_mac_X540: |
bdda1a61 | 1013 | rxctrl <<= IXGBE_DCA_RXCTRL_CPUID_SHIFT_82599; |
33cf09c9 AD |
1014 | break; |
1015 | default: | |
1016 | break; | |
1017 | } | |
bdda1a61 AD |
1018 | |
1019 | /* | |
1020 | * We can enable relaxed ordering for reads, but not writes when | |
1021 | * DCA is enabled. This is due to a known issue in some chipsets | |
1022 | * which will cause the DCA tag to be cleared. | |
1023 | */ | |
1024 | rxctrl |= IXGBE_DCA_RXCTRL_DESC_RRO_EN | | |
bdda1a61 AD |
1025 | IXGBE_DCA_RXCTRL_DESC_DCA_EN; |
1026 | ||
1027 | IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(reg_idx), rxctrl); | |
33cf09c9 AD |
1028 | } |
1029 | ||
1030 | static void ixgbe_update_dca(struct ixgbe_q_vector *q_vector) | |
1031 | { | |
1032 | struct ixgbe_adapter *adapter = q_vector->adapter; | |
efe3d3c8 | 1033 | struct ixgbe_ring *ring; |
bd0362dd | 1034 | int cpu = get_cpu(); |
bd0362dd | 1035 | |
33cf09c9 AD |
1036 | if (q_vector->cpu == cpu) |
1037 | goto out_no_update; | |
1038 | ||
a557928e | 1039 | ixgbe_for_each_ring(ring, q_vector->tx) |
efe3d3c8 | 1040 | ixgbe_update_tx_dca(adapter, ring, cpu); |
33cf09c9 | 1041 | |
a557928e | 1042 | ixgbe_for_each_ring(ring, q_vector->rx) |
efe3d3c8 | 1043 | ixgbe_update_rx_dca(adapter, ring, cpu); |
33cf09c9 AD |
1044 | |
1045 | q_vector->cpu = cpu; | |
1046 | out_no_update: | |
bd0362dd JC |
1047 | put_cpu(); |
1048 | } | |
1049 | ||
1050 | static void ixgbe_setup_dca(struct ixgbe_adapter *adapter) | |
1051 | { | |
1052 | int i; | |
1053 | ||
1054 | if (!(adapter->flags & IXGBE_FLAG_DCA_ENABLED)) | |
1055 | return; | |
1056 | ||
e35ec126 AD |
1057 | /* always use CB2 mode, difference is masked in the CB driver */ |
1058 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, 2); | |
1059 | ||
49c7ffbe | 1060 | for (i = 0; i < adapter->num_q_vectors; i++) { |
33cf09c9 AD |
1061 | adapter->q_vector[i]->cpu = -1; |
1062 | ixgbe_update_dca(adapter->q_vector[i]); | |
bd0362dd JC |
1063 | } |
1064 | } | |
1065 | ||
1066 | static int __ixgbe_notify_dca(struct device *dev, void *data) | |
1067 | { | |
c60fbb00 | 1068 | struct ixgbe_adapter *adapter = dev_get_drvdata(dev); |
bd0362dd JC |
1069 | unsigned long event = *(unsigned long *)data; |
1070 | ||
2a72c31e | 1071 | if (!(adapter->flags & IXGBE_FLAG_DCA_CAPABLE)) |
33cf09c9 AD |
1072 | return 0; |
1073 | ||
bd0362dd JC |
1074 | switch (event) { |
1075 | case DCA_PROVIDER_ADD: | |
96b0e0f6 JB |
1076 | /* if we're already enabled, don't do it again */ |
1077 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) | |
1078 | break; | |
652f093f | 1079 | if (dca_add_requester(dev) == 0) { |
96b0e0f6 | 1080 | adapter->flags |= IXGBE_FLAG_DCA_ENABLED; |
bd0362dd JC |
1081 | ixgbe_setup_dca(adapter); |
1082 | break; | |
1083 | } | |
1084 | /* Fall Through since DCA is disabled. */ | |
1085 | case DCA_PROVIDER_REMOVE: | |
1086 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) { | |
1087 | dca_remove_requester(dev); | |
1088 | adapter->flags &= ~IXGBE_FLAG_DCA_ENABLED; | |
1089 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, 1); | |
1090 | } | |
1091 | break; | |
1092 | } | |
1093 | ||
652f093f | 1094 | return 0; |
bd0362dd | 1095 | } |
67a74ee2 | 1096 | |
bdda1a61 | 1097 | #endif /* CONFIG_IXGBE_DCA */ |
8a0da21b AD |
1098 | static inline void ixgbe_rx_hash(struct ixgbe_ring *ring, |
1099 | union ixgbe_adv_rx_desc *rx_desc, | |
67a74ee2 ET |
1100 | struct sk_buff *skb) |
1101 | { | |
8a0da21b AD |
1102 | if (ring->netdev->features & NETIF_F_RXHASH) |
1103 | skb->rxhash = le32_to_cpu(rx_desc->wb.lower.hi_dword.rss); | |
67a74ee2 ET |
1104 | } |
1105 | ||
f800326d | 1106 | #ifdef IXGBE_FCOE |
ff886dfc AD |
1107 | /** |
1108 | * ixgbe_rx_is_fcoe - check the rx desc for incoming pkt type | |
57efd44c | 1109 | * @ring: structure containing ring specific data |
ff886dfc AD |
1110 | * @rx_desc: advanced rx descriptor |
1111 | * | |
1112 | * Returns : true if it is FCoE pkt | |
1113 | */ | |
57efd44c | 1114 | static inline bool ixgbe_rx_is_fcoe(struct ixgbe_ring *ring, |
ff886dfc AD |
1115 | union ixgbe_adv_rx_desc *rx_desc) |
1116 | { | |
1117 | __le16 pkt_info = rx_desc->wb.lower.lo_dword.hs_rss.pkt_info; | |
1118 | ||
57efd44c | 1119 | return test_bit(__IXGBE_RX_FCOE, &ring->state) && |
ff886dfc AD |
1120 | ((pkt_info & cpu_to_le16(IXGBE_RXDADV_PKTTYPE_ETQF_MASK)) == |
1121 | (cpu_to_le16(IXGBE_ETQF_FILTER_FCOE << | |
1122 | IXGBE_RXDADV_PKTTYPE_ETQF_SHIFT))); | |
1123 | } | |
1124 | ||
f800326d | 1125 | #endif /* IXGBE_FCOE */ |
e59bd25d AV |
1126 | /** |
1127 | * ixgbe_rx_checksum - indicate in skb if hw indicated a good cksum | |
8a0da21b AD |
1128 | * @ring: structure containing ring specific data |
1129 | * @rx_desc: current Rx descriptor being processed | |
e59bd25d AV |
1130 | * @skb: skb currently being received and modified |
1131 | **/ | |
8a0da21b | 1132 | static inline void ixgbe_rx_checksum(struct ixgbe_ring *ring, |
8bae1b2b | 1133 | union ixgbe_adv_rx_desc *rx_desc, |
f56e0cb1 | 1134 | struct sk_buff *skb) |
9a799d71 | 1135 | { |
8a0da21b | 1136 | skb_checksum_none_assert(skb); |
9a799d71 | 1137 | |
712744be | 1138 | /* Rx csum disabled */ |
8a0da21b | 1139 | if (!(ring->netdev->features & NETIF_F_RXCSUM)) |
9a799d71 | 1140 | return; |
e59bd25d AV |
1141 | |
1142 | /* if IP and error */ | |
f56e0cb1 AD |
1143 | if (ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_IPCS) && |
1144 | ixgbe_test_staterr(rx_desc, IXGBE_RXDADV_ERR_IPE)) { | |
8a0da21b | 1145 | ring->rx_stats.csum_err++; |
9a799d71 AK |
1146 | return; |
1147 | } | |
e59bd25d | 1148 | |
f56e0cb1 | 1149 | if (!ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_L4CS)) |
e59bd25d AV |
1150 | return; |
1151 | ||
f56e0cb1 | 1152 | if (ixgbe_test_staterr(rx_desc, IXGBE_RXDADV_ERR_TCPE)) { |
f800326d | 1153 | __le16 pkt_info = rx_desc->wb.lower.lo_dword.hs_rss.pkt_info; |
8bae1b2b DS |
1154 | |
1155 | /* | |
1156 | * 82599 errata, UDP frames with a 0 checksum can be marked as | |
1157 | * checksum errors. | |
1158 | */ | |
8a0da21b AD |
1159 | if ((pkt_info & cpu_to_le16(IXGBE_RXDADV_PKTTYPE_UDP)) && |
1160 | test_bit(__IXGBE_RX_CSUM_UDP_ZERO_ERR, &ring->state)) | |
8bae1b2b DS |
1161 | return; |
1162 | ||
8a0da21b | 1163 | ring->rx_stats.csum_err++; |
e59bd25d AV |
1164 | return; |
1165 | } | |
1166 | ||
9a799d71 | 1167 | /* It must be a TCP or UDP packet with a valid checksum */ |
e59bd25d | 1168 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
9a799d71 AK |
1169 | } |
1170 | ||
84ea2591 | 1171 | static inline void ixgbe_release_rx_desc(struct ixgbe_ring *rx_ring, u32 val) |
e8e26350 | 1172 | { |
f56e0cb1 | 1173 | rx_ring->next_to_use = val; |
f800326d AD |
1174 | |
1175 | /* update next to alloc since we have filled the ring */ | |
1176 | rx_ring->next_to_alloc = val; | |
e8e26350 PW |
1177 | /* |
1178 | * Force memory writes to complete before letting h/w | |
1179 | * know there are new descriptors to fetch. (Only | |
1180 | * applicable for weak-ordered memory model archs, | |
1181 | * such as IA-64). | |
1182 | */ | |
1183 | wmb(); | |
84ea2591 | 1184 | writel(val, rx_ring->tail); |
e8e26350 PW |
1185 | } |
1186 | ||
f990b79b AD |
1187 | static bool ixgbe_alloc_mapped_page(struct ixgbe_ring *rx_ring, |
1188 | struct ixgbe_rx_buffer *bi) | |
1189 | { | |
1190 | struct page *page = bi->page; | |
f800326d | 1191 | dma_addr_t dma = bi->dma; |
f990b79b | 1192 | |
f800326d AD |
1193 | /* since we are recycling buffers we should seldom need to alloc */ |
1194 | if (likely(dma)) | |
f990b79b AD |
1195 | return true; |
1196 | ||
f800326d AD |
1197 | /* alloc new page for storage */ |
1198 | if (likely(!page)) { | |
0614002b MG |
1199 | page = __skb_alloc_pages(GFP_ATOMIC | __GFP_COLD | __GFP_COMP, |
1200 | bi->skb, ixgbe_rx_pg_order(rx_ring)); | |
f990b79b AD |
1201 | if (unlikely(!page)) { |
1202 | rx_ring->rx_stats.alloc_rx_page_failed++; | |
1203 | return false; | |
1204 | } | |
f800326d | 1205 | bi->page = page; |
f990b79b AD |
1206 | } |
1207 | ||
f800326d AD |
1208 | /* map page for use */ |
1209 | dma = dma_map_page(rx_ring->dev, page, 0, | |
1210 | ixgbe_rx_pg_size(rx_ring), DMA_FROM_DEVICE); | |
1211 | ||
1212 | /* | |
1213 | * if mapping failed free memory back to system since | |
1214 | * there isn't much point in holding memory we can't use | |
1215 | */ | |
1216 | if (dma_mapping_error(rx_ring->dev, dma)) { | |
dd411ec4 | 1217 | __free_pages(page, ixgbe_rx_pg_order(rx_ring)); |
f800326d | 1218 | bi->page = NULL; |
f990b79b | 1219 | |
f990b79b AD |
1220 | rx_ring->rx_stats.alloc_rx_page_failed++; |
1221 | return false; | |
1222 | } | |
1223 | ||
f800326d | 1224 | bi->dma = dma; |
afaa9459 | 1225 | bi->page_offset = 0; |
f800326d | 1226 | |
f990b79b AD |
1227 | return true; |
1228 | } | |
1229 | ||
9a799d71 | 1230 | /** |
f990b79b | 1231 | * ixgbe_alloc_rx_buffers - Replace used receive buffers |
fc77dc3c AD |
1232 | * @rx_ring: ring to place buffers on |
1233 | * @cleaned_count: number of buffers to replace | |
9a799d71 | 1234 | **/ |
fc77dc3c | 1235 | void ixgbe_alloc_rx_buffers(struct ixgbe_ring *rx_ring, u16 cleaned_count) |
9a799d71 | 1236 | { |
9a799d71 | 1237 | union ixgbe_adv_rx_desc *rx_desc; |
3a581073 | 1238 | struct ixgbe_rx_buffer *bi; |
d5f398ed | 1239 | u16 i = rx_ring->next_to_use; |
9a799d71 | 1240 | |
f800326d AD |
1241 | /* nothing to do */ |
1242 | if (!cleaned_count) | |
fc77dc3c AD |
1243 | return; |
1244 | ||
e4f74028 | 1245 | rx_desc = IXGBE_RX_DESC(rx_ring, i); |
f990b79b AD |
1246 | bi = &rx_ring->rx_buffer_info[i]; |
1247 | i -= rx_ring->count; | |
9a799d71 | 1248 | |
f800326d AD |
1249 | do { |
1250 | if (!ixgbe_alloc_mapped_page(rx_ring, bi)) | |
f990b79b | 1251 | break; |
d5f398ed | 1252 | |
f800326d AD |
1253 | /* |
1254 | * Refresh the desc even if buffer_addrs didn't change | |
1255 | * because each write-back erases this info. | |
1256 | */ | |
1257 | rx_desc->read.pkt_addr = cpu_to_le64(bi->dma + bi->page_offset); | |
9a799d71 | 1258 | |
f990b79b AD |
1259 | rx_desc++; |
1260 | bi++; | |
9a799d71 | 1261 | i++; |
f990b79b | 1262 | if (unlikely(!i)) { |
e4f74028 | 1263 | rx_desc = IXGBE_RX_DESC(rx_ring, 0); |
f990b79b AD |
1264 | bi = rx_ring->rx_buffer_info; |
1265 | i -= rx_ring->count; | |
1266 | } | |
1267 | ||
1268 | /* clear the hdr_addr for the next_to_use descriptor */ | |
1269 | rx_desc->read.hdr_addr = 0; | |
f800326d AD |
1270 | |
1271 | cleaned_count--; | |
1272 | } while (cleaned_count); | |
7c6e0a43 | 1273 | |
f990b79b AD |
1274 | i += rx_ring->count; |
1275 | ||
f56e0cb1 | 1276 | if (rx_ring->next_to_use != i) |
84ea2591 | 1277 | ixgbe_release_rx_desc(rx_ring, i); |
9a799d71 AK |
1278 | } |
1279 | ||
1d2024f6 AD |
1280 | /** |
1281 | * ixgbe_get_headlen - determine size of header for RSC/LRO/GRO/FCOE | |
1282 | * @data: pointer to the start of the headers | |
1283 | * @max_len: total length of section to find headers in | |
1284 | * | |
1285 | * This function is meant to determine the length of headers that will | |
1286 | * be recognized by hardware for LRO, GRO, and RSC offloads. The main | |
1287 | * motivation of doing this is to only perform one pull for IPv4 TCP | |
1288 | * packets so that we can do basic things like calculating the gso_size | |
1289 | * based on the average data per packet. | |
1290 | **/ | |
1291 | static unsigned int ixgbe_get_headlen(unsigned char *data, | |
1292 | unsigned int max_len) | |
1293 | { | |
1294 | union { | |
1295 | unsigned char *network; | |
1296 | /* l2 headers */ | |
1297 | struct ethhdr *eth; | |
1298 | struct vlan_hdr *vlan; | |
1299 | /* l3 headers */ | |
1300 | struct iphdr *ipv4; | |
a048b40e | 1301 | struct ipv6hdr *ipv6; |
1d2024f6 AD |
1302 | } hdr; |
1303 | __be16 protocol; | |
1304 | u8 nexthdr = 0; /* default to not TCP */ | |
1305 | u8 hlen; | |
1306 | ||
1307 | /* this should never happen, but better safe than sorry */ | |
1308 | if (max_len < ETH_HLEN) | |
1309 | return max_len; | |
1310 | ||
1311 | /* initialize network frame pointer */ | |
1312 | hdr.network = data; | |
1313 | ||
1314 | /* set first protocol and move network header forward */ | |
1315 | protocol = hdr.eth->h_proto; | |
1316 | hdr.network += ETH_HLEN; | |
1317 | ||
1318 | /* handle any vlan tag if present */ | |
1319 | if (protocol == __constant_htons(ETH_P_8021Q)) { | |
1320 | if ((hdr.network - data) > (max_len - VLAN_HLEN)) | |
1321 | return max_len; | |
1322 | ||
1323 | protocol = hdr.vlan->h_vlan_encapsulated_proto; | |
1324 | hdr.network += VLAN_HLEN; | |
1325 | } | |
1326 | ||
1327 | /* handle L3 protocols */ | |
1328 | if (protocol == __constant_htons(ETH_P_IP)) { | |
1329 | if ((hdr.network - data) > (max_len - sizeof(struct iphdr))) | |
1330 | return max_len; | |
1331 | ||
1332 | /* access ihl as a u8 to avoid unaligned access on ia64 */ | |
1333 | hlen = (hdr.network[0] & 0x0F) << 2; | |
1334 | ||
1335 | /* verify hlen meets minimum size requirements */ | |
1336 | if (hlen < sizeof(struct iphdr)) | |
1337 | return hdr.network - data; | |
1338 | ||
ed83da12 AD |
1339 | /* record next protocol if header is present */ |
1340 | if (!hdr.ipv4->frag_off) | |
1341 | nexthdr = hdr.ipv4->protocol; | |
a048b40e AD |
1342 | } else if (protocol == __constant_htons(ETH_P_IPV6)) { |
1343 | if ((hdr.network - data) > (max_len - sizeof(struct ipv6hdr))) | |
1344 | return max_len; | |
1345 | ||
1346 | /* record next protocol */ | |
1347 | nexthdr = hdr.ipv6->nexthdr; | |
ed83da12 | 1348 | hlen = sizeof(struct ipv6hdr); |
f800326d | 1349 | #ifdef IXGBE_FCOE |
1d2024f6 AD |
1350 | } else if (protocol == __constant_htons(ETH_P_FCOE)) { |
1351 | if ((hdr.network - data) > (max_len - FCOE_HEADER_LEN)) | |
1352 | return max_len; | |
ed83da12 | 1353 | hlen = FCOE_HEADER_LEN; |
1d2024f6 AD |
1354 | #endif |
1355 | } else { | |
1356 | return hdr.network - data; | |
1357 | } | |
1358 | ||
ed83da12 AD |
1359 | /* relocate pointer to start of L4 header */ |
1360 | hdr.network += hlen; | |
1361 | ||
a048b40e | 1362 | /* finally sort out TCP/UDP */ |
1d2024f6 AD |
1363 | if (nexthdr == IPPROTO_TCP) { |
1364 | if ((hdr.network - data) > (max_len - sizeof(struct tcphdr))) | |
1365 | return max_len; | |
1366 | ||
1367 | /* access doff as a u8 to avoid unaligned access on ia64 */ | |
1368 | hlen = (hdr.network[12] & 0xF0) >> 2; | |
1369 | ||
1370 | /* verify hlen meets minimum size requirements */ | |
1371 | if (hlen < sizeof(struct tcphdr)) | |
1372 | return hdr.network - data; | |
1373 | ||
1374 | hdr.network += hlen; | |
a048b40e AD |
1375 | } else if (nexthdr == IPPROTO_UDP) { |
1376 | if ((hdr.network - data) > (max_len - sizeof(struct udphdr))) | |
1377 | return max_len; | |
1378 | ||
1379 | hdr.network += sizeof(struct udphdr); | |
1d2024f6 AD |
1380 | } |
1381 | ||
1382 | /* | |
1383 | * If everything has gone correctly hdr.network should be the | |
1384 | * data section of the packet and will be the end of the header. | |
1385 | * If not then it probably represents the end of the last recognized | |
1386 | * header. | |
1387 | */ | |
1388 | if ((hdr.network - data) < max_len) | |
1389 | return hdr.network - data; | |
1390 | else | |
1391 | return max_len; | |
1392 | } | |
1393 | ||
1d2024f6 AD |
1394 | static void ixgbe_set_rsc_gso_size(struct ixgbe_ring *ring, |
1395 | struct sk_buff *skb) | |
1396 | { | |
f800326d | 1397 | u16 hdr_len = skb_headlen(skb); |
1d2024f6 AD |
1398 | |
1399 | /* set gso_size to avoid messing up TCP MSS */ | |
1400 | skb_shinfo(skb)->gso_size = DIV_ROUND_UP((skb->len - hdr_len), | |
1401 | IXGBE_CB(skb)->append_cnt); | |
96be80ab | 1402 | skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4; |
1d2024f6 AD |
1403 | } |
1404 | ||
1405 | static void ixgbe_update_rsc_stats(struct ixgbe_ring *rx_ring, | |
1406 | struct sk_buff *skb) | |
1407 | { | |
1408 | /* if append_cnt is 0 then frame is not RSC */ | |
1409 | if (!IXGBE_CB(skb)->append_cnt) | |
1410 | return; | |
1411 | ||
1412 | rx_ring->rx_stats.rsc_count += IXGBE_CB(skb)->append_cnt; | |
1413 | rx_ring->rx_stats.rsc_flush++; | |
1414 | ||
1415 | ixgbe_set_rsc_gso_size(rx_ring, skb); | |
1416 | ||
1417 | /* gso_size is computed using append_cnt so always clear it last */ | |
1418 | IXGBE_CB(skb)->append_cnt = 0; | |
1419 | } | |
1420 | ||
8a0da21b AD |
1421 | /** |
1422 | * ixgbe_process_skb_fields - Populate skb header fields from Rx descriptor | |
1423 | * @rx_ring: rx descriptor ring packet is being transacted on | |
1424 | * @rx_desc: pointer to the EOP Rx descriptor | |
1425 | * @skb: pointer to current skb being populated | |
f8212f97 | 1426 | * |
8a0da21b AD |
1427 | * This function checks the ring, descriptor, and packet information in |
1428 | * order to populate the hash, checksum, VLAN, timestamp, protocol, and | |
1429 | * other fields within the skb. | |
f8212f97 | 1430 | **/ |
8a0da21b AD |
1431 | static void ixgbe_process_skb_fields(struct ixgbe_ring *rx_ring, |
1432 | union ixgbe_adv_rx_desc *rx_desc, | |
1433 | struct sk_buff *skb) | |
f8212f97 | 1434 | { |
43e95f11 JF |
1435 | struct net_device *dev = rx_ring->netdev; |
1436 | ||
8a0da21b AD |
1437 | ixgbe_update_rsc_stats(rx_ring, skb); |
1438 | ||
1439 | ixgbe_rx_hash(rx_ring, rx_desc, skb); | |
f8212f97 | 1440 | |
8a0da21b AD |
1441 | ixgbe_rx_checksum(rx_ring, rx_desc, skb); |
1442 | ||
6cb562d6 | 1443 | ixgbe_ptp_rx_hwtstamp(rx_ring, rx_desc, skb); |
3a6a4eda | 1444 | |
43e95f11 JF |
1445 | if ((dev->features & NETIF_F_HW_VLAN_RX) && |
1446 | ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_VP)) { | |
8a0da21b AD |
1447 | u16 vid = le16_to_cpu(rx_desc->wb.upper.vlan); |
1448 | __vlan_hwaccel_put_tag(skb, vid); | |
f8212f97 AD |
1449 | } |
1450 | ||
8a0da21b | 1451 | skb_record_rx_queue(skb, rx_ring->queue_index); |
aa80175a | 1452 | |
43e95f11 | 1453 | skb->protocol = eth_type_trans(skb, dev); |
f8212f97 AD |
1454 | } |
1455 | ||
8a0da21b AD |
1456 | static void ixgbe_rx_skb(struct ixgbe_q_vector *q_vector, |
1457 | struct sk_buff *skb) | |
aa80175a | 1458 | { |
8a0da21b AD |
1459 | struct ixgbe_adapter *adapter = q_vector->adapter; |
1460 | ||
1461 | if (!(adapter->flags & IXGBE_FLAG_IN_NETPOLL)) | |
1462 | napi_gro_receive(&q_vector->napi, skb); | |
1463 | else | |
1464 | netif_rx(skb); | |
aa80175a | 1465 | } |
43634e82 | 1466 | |
f800326d AD |
1467 | /** |
1468 | * ixgbe_is_non_eop - process handling of non-EOP buffers | |
1469 | * @rx_ring: Rx ring being processed | |
1470 | * @rx_desc: Rx descriptor for current buffer | |
1471 | * @skb: Current socket buffer containing buffer in progress | |
1472 | * | |
1473 | * This function updates next to clean. If the buffer is an EOP buffer | |
1474 | * this function exits returning false, otherwise it will place the | |
1475 | * sk_buff in the next buffer to be chained and return true indicating | |
1476 | * that this is in fact a non-EOP buffer. | |
1477 | **/ | |
1478 | static bool ixgbe_is_non_eop(struct ixgbe_ring *rx_ring, | |
1479 | union ixgbe_adv_rx_desc *rx_desc, | |
1480 | struct sk_buff *skb) | |
1481 | { | |
1482 | u32 ntc = rx_ring->next_to_clean + 1; | |
1483 | ||
1484 | /* fetch, update, and store next to clean */ | |
1485 | ntc = (ntc < rx_ring->count) ? ntc : 0; | |
1486 | rx_ring->next_to_clean = ntc; | |
1487 | ||
1488 | prefetch(IXGBE_RX_DESC(rx_ring, ntc)); | |
1489 | ||
5a02cbd1 AD |
1490 | /* update RSC append count if present */ |
1491 | if (ring_is_rsc_enabled(rx_ring)) { | |
1492 | __le32 rsc_enabled = rx_desc->wb.lower.lo_dword.data & | |
1493 | cpu_to_le32(IXGBE_RXDADV_RSCCNT_MASK); | |
1494 | ||
1495 | if (unlikely(rsc_enabled)) { | |
1496 | u32 rsc_cnt = le32_to_cpu(rsc_enabled); | |
1497 | ||
1498 | rsc_cnt >>= IXGBE_RXDADV_RSCCNT_SHIFT; | |
1499 | IXGBE_CB(skb)->append_cnt += rsc_cnt - 1; | |
f800326d | 1500 | |
5a02cbd1 AD |
1501 | /* update ntc based on RSC value */ |
1502 | ntc = le32_to_cpu(rx_desc->wb.upper.status_error); | |
1503 | ntc &= IXGBE_RXDADV_NEXTP_MASK; | |
1504 | ntc >>= IXGBE_RXDADV_NEXTP_SHIFT; | |
1505 | } | |
f800326d AD |
1506 | } |
1507 | ||
5a02cbd1 AD |
1508 | /* if we are the last buffer then there is nothing else to do */ |
1509 | if (likely(ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_EOP))) | |
1510 | return false; | |
1511 | ||
f800326d AD |
1512 | /* place skb in next buffer to be received */ |
1513 | rx_ring->rx_buffer_info[ntc].skb = skb; | |
1514 | rx_ring->rx_stats.non_eop_descs++; | |
1515 | ||
1516 | return true; | |
1517 | } | |
1518 | ||
19861ce2 AD |
1519 | /** |
1520 | * ixgbe_pull_tail - ixgbe specific version of skb_pull_tail | |
1521 | * @rx_ring: rx descriptor ring packet is being transacted on | |
1522 | * @skb: pointer to current skb being adjusted | |
1523 | * | |
1524 | * This function is an ixgbe specific version of __pskb_pull_tail. The | |
1525 | * main difference between this version and the original function is that | |
1526 | * this function can make several assumptions about the state of things | |
1527 | * that allow for significant optimizations versus the standard function. | |
1528 | * As a result we can do things like drop a frag and maintain an accurate | |
1529 | * truesize for the skb. | |
1530 | */ | |
1531 | static void ixgbe_pull_tail(struct ixgbe_ring *rx_ring, | |
1532 | struct sk_buff *skb) | |
1533 | { | |
1534 | struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[0]; | |
1535 | unsigned char *va; | |
1536 | unsigned int pull_len; | |
1537 | ||
1538 | /* | |
1539 | * it is valid to use page_address instead of kmap since we are | |
1540 | * working with pages allocated out of the lomem pool per | |
1541 | * alloc_page(GFP_ATOMIC) | |
1542 | */ | |
1543 | va = skb_frag_address(frag); | |
1544 | ||
1545 | /* | |
1546 | * we need the header to contain the greater of either ETH_HLEN or | |
1547 | * 60 bytes if the skb->len is less than 60 for skb_pad. | |
1548 | */ | |
cf3fe7ac | 1549 | pull_len = ixgbe_get_headlen(va, IXGBE_RX_HDR_SIZE); |
19861ce2 AD |
1550 | |
1551 | /* align pull length to size of long to optimize memcpy performance */ | |
1552 | skb_copy_to_linear_data(skb, va, ALIGN(pull_len, sizeof(long))); | |
1553 | ||
1554 | /* update all of the pointers */ | |
1555 | skb_frag_size_sub(frag, pull_len); | |
1556 | frag->page_offset += pull_len; | |
1557 | skb->data_len -= pull_len; | |
1558 | skb->tail += pull_len; | |
19861ce2 AD |
1559 | } |
1560 | ||
42073d91 AD |
1561 | /** |
1562 | * ixgbe_dma_sync_frag - perform DMA sync for first frag of SKB | |
1563 | * @rx_ring: rx descriptor ring packet is being transacted on | |
1564 | * @skb: pointer to current skb being updated | |
1565 | * | |
1566 | * This function provides a basic DMA sync up for the first fragment of an | |
1567 | * skb. The reason for doing this is that the first fragment cannot be | |
1568 | * unmapped until we have reached the end of packet descriptor for a buffer | |
1569 | * chain. | |
1570 | */ | |
1571 | static void ixgbe_dma_sync_frag(struct ixgbe_ring *rx_ring, | |
1572 | struct sk_buff *skb) | |
1573 | { | |
1574 | /* if the page was released unmap it, else just sync our portion */ | |
1575 | if (unlikely(IXGBE_CB(skb)->page_released)) { | |
1576 | dma_unmap_page(rx_ring->dev, IXGBE_CB(skb)->dma, | |
1577 | ixgbe_rx_pg_size(rx_ring), DMA_FROM_DEVICE); | |
1578 | IXGBE_CB(skb)->page_released = false; | |
1579 | } else { | |
1580 | struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[0]; | |
1581 | ||
1582 | dma_sync_single_range_for_cpu(rx_ring->dev, | |
1583 | IXGBE_CB(skb)->dma, | |
1584 | frag->page_offset, | |
1585 | ixgbe_rx_bufsz(rx_ring), | |
1586 | DMA_FROM_DEVICE); | |
1587 | } | |
1588 | IXGBE_CB(skb)->dma = 0; | |
1589 | } | |
1590 | ||
f800326d AD |
1591 | /** |
1592 | * ixgbe_cleanup_headers - Correct corrupted or empty headers | |
1593 | * @rx_ring: rx descriptor ring packet is being transacted on | |
1594 | * @rx_desc: pointer to the EOP Rx descriptor | |
1595 | * @skb: pointer to current skb being fixed | |
1596 | * | |
1597 | * Check for corrupted packet headers caused by senders on the local L2 | |
1598 | * embedded NIC switch not setting up their Tx Descriptors right. These | |
1599 | * should be very rare. | |
1600 | * | |
1601 | * Also address the case where we are pulling data in on pages only | |
1602 | * and as such no data is present in the skb header. | |
1603 | * | |
1604 | * In addition if skb is not at least 60 bytes we need to pad it so that | |
1605 | * it is large enough to qualify as a valid Ethernet frame. | |
1606 | * | |
1607 | * Returns true if an error was encountered and skb was freed. | |
1608 | **/ | |
1609 | static bool ixgbe_cleanup_headers(struct ixgbe_ring *rx_ring, | |
1610 | union ixgbe_adv_rx_desc *rx_desc, | |
1611 | struct sk_buff *skb) | |
1612 | { | |
f800326d | 1613 | struct net_device *netdev = rx_ring->netdev; |
f800326d AD |
1614 | |
1615 | /* verify that the packet does not have any known errors */ | |
1616 | if (unlikely(ixgbe_test_staterr(rx_desc, | |
1617 | IXGBE_RXDADV_ERR_FRAME_ERR_MASK) && | |
1618 | !(netdev->features & NETIF_F_RXALL))) { | |
1619 | dev_kfree_skb_any(skb); | |
1620 | return true; | |
1621 | } | |
1622 | ||
19861ce2 | 1623 | /* place header in linear portion of buffer */ |
cf3fe7ac AD |
1624 | if (skb_is_nonlinear(skb)) |
1625 | ixgbe_pull_tail(rx_ring, skb); | |
f800326d | 1626 | |
57efd44c AD |
1627 | #ifdef IXGBE_FCOE |
1628 | /* do not attempt to pad FCoE Frames as this will disrupt DDP */ | |
1629 | if (ixgbe_rx_is_fcoe(rx_ring, rx_desc)) | |
1630 | return false; | |
1631 | ||
1632 | #endif | |
f800326d AD |
1633 | /* if skb_pad returns an error the skb was freed */ |
1634 | if (unlikely(skb->len < 60)) { | |
1635 | int pad_len = 60 - skb->len; | |
1636 | ||
1637 | if (skb_pad(skb, pad_len)) | |
1638 | return true; | |
1639 | __skb_put(skb, pad_len); | |
1640 | } | |
1641 | ||
1642 | return false; | |
1643 | } | |
1644 | ||
f800326d AD |
1645 | /** |
1646 | * ixgbe_reuse_rx_page - page flip buffer and store it back on the ring | |
1647 | * @rx_ring: rx descriptor ring to store buffers on | |
1648 | * @old_buff: donor buffer to have page reused | |
1649 | * | |
0549ae20 | 1650 | * Synchronizes page for reuse by the adapter |
f800326d AD |
1651 | **/ |
1652 | static void ixgbe_reuse_rx_page(struct ixgbe_ring *rx_ring, | |
1653 | struct ixgbe_rx_buffer *old_buff) | |
1654 | { | |
1655 | struct ixgbe_rx_buffer *new_buff; | |
1656 | u16 nta = rx_ring->next_to_alloc; | |
f800326d AD |
1657 | |
1658 | new_buff = &rx_ring->rx_buffer_info[nta]; | |
1659 | ||
1660 | /* update, and store next to alloc */ | |
1661 | nta++; | |
1662 | rx_ring->next_to_alloc = (nta < rx_ring->count) ? nta : 0; | |
1663 | ||
1664 | /* transfer page from old buffer to new buffer */ | |
1665 | new_buff->page = old_buff->page; | |
1666 | new_buff->dma = old_buff->dma; | |
0549ae20 | 1667 | new_buff->page_offset = old_buff->page_offset; |
f800326d AD |
1668 | |
1669 | /* sync the buffer for use by the device */ | |
1670 | dma_sync_single_range_for_device(rx_ring->dev, new_buff->dma, | |
0549ae20 AD |
1671 | new_buff->page_offset, |
1672 | ixgbe_rx_bufsz(rx_ring), | |
f800326d | 1673 | DMA_FROM_DEVICE); |
f800326d AD |
1674 | } |
1675 | ||
1676 | /** | |
1677 | * ixgbe_add_rx_frag - Add contents of Rx buffer to sk_buff | |
1678 | * @rx_ring: rx descriptor ring to transact packets on | |
1679 | * @rx_buffer: buffer containing page to add | |
1680 | * @rx_desc: descriptor containing length of buffer written by hardware | |
1681 | * @skb: sk_buff to place the data into | |
1682 | * | |
0549ae20 AD |
1683 | * This function will add the data contained in rx_buffer->page to the skb. |
1684 | * This is done either through a direct copy if the data in the buffer is | |
1685 | * less than the skb header size, otherwise it will just attach the page as | |
1686 | * a frag to the skb. | |
1687 | * | |
1688 | * The function will then update the page offset if necessary and return | |
1689 | * true if the buffer can be reused by the adapter. | |
f800326d | 1690 | **/ |
0549ae20 | 1691 | static bool ixgbe_add_rx_frag(struct ixgbe_ring *rx_ring, |
f800326d | 1692 | struct ixgbe_rx_buffer *rx_buffer, |
0549ae20 AD |
1693 | union ixgbe_adv_rx_desc *rx_desc, |
1694 | struct sk_buff *skb) | |
f800326d | 1695 | { |
0549ae20 AD |
1696 | struct page *page = rx_buffer->page; |
1697 | unsigned int size = le16_to_cpu(rx_desc->wb.upper.length); | |
09816fbe | 1698 | #if (PAGE_SIZE < 8192) |
0549ae20 | 1699 | unsigned int truesize = ixgbe_rx_bufsz(rx_ring); |
09816fbe AD |
1700 | #else |
1701 | unsigned int truesize = ALIGN(size, L1_CACHE_BYTES); | |
1702 | unsigned int last_offset = ixgbe_rx_pg_size(rx_ring) - | |
1703 | ixgbe_rx_bufsz(rx_ring); | |
1704 | #endif | |
0549ae20 | 1705 | |
cf3fe7ac AD |
1706 | if ((size <= IXGBE_RX_HDR_SIZE) && !skb_is_nonlinear(skb)) { |
1707 | unsigned char *va = page_address(page) + rx_buffer->page_offset; | |
1708 | ||
1709 | memcpy(__skb_put(skb, size), va, ALIGN(size, sizeof(long))); | |
1710 | ||
1711 | /* we can reuse buffer as-is, just make sure it is local */ | |
1712 | if (likely(page_to_nid(page) == numa_node_id())) | |
1713 | return true; | |
1714 | ||
1715 | /* this page cannot be reused so discard it */ | |
1716 | put_page(page); | |
1717 | return false; | |
1718 | } | |
1719 | ||
0549ae20 AD |
1720 | skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page, |
1721 | rx_buffer->page_offset, size, truesize); | |
1722 | ||
09816fbe AD |
1723 | /* avoid re-using remote pages */ |
1724 | if (unlikely(page_to_nid(page) != numa_node_id())) | |
1725 | return false; | |
1726 | ||
1727 | #if (PAGE_SIZE < 8192) | |
1728 | /* if we are only owner of page we can reuse it */ | |
1729 | if (unlikely(page_count(page) != 1)) | |
0549ae20 AD |
1730 | return false; |
1731 | ||
1732 | /* flip page offset to other buffer */ | |
1733 | rx_buffer->page_offset ^= truesize; | |
1734 | ||
09816fbe AD |
1735 | /* |
1736 | * since we are the only owner of the page and we need to | |
1737 | * increment it, just set the value to 2 in order to avoid | |
1738 | * an unecessary locked operation | |
1739 | */ | |
1740 | atomic_set(&page->_count, 2); | |
1741 | #else | |
1742 | /* move offset up to the next cache line */ | |
1743 | rx_buffer->page_offset += truesize; | |
1744 | ||
1745 | if (rx_buffer->page_offset > last_offset) | |
1746 | return false; | |
1747 | ||
0549ae20 AD |
1748 | /* bump ref count on page before it is given to the stack */ |
1749 | get_page(page); | |
09816fbe | 1750 | #endif |
0549ae20 AD |
1751 | |
1752 | return true; | |
f800326d AD |
1753 | } |
1754 | ||
18806c9e AD |
1755 | static struct sk_buff *ixgbe_fetch_rx_buffer(struct ixgbe_ring *rx_ring, |
1756 | union ixgbe_adv_rx_desc *rx_desc) | |
1757 | { | |
1758 | struct ixgbe_rx_buffer *rx_buffer; | |
1759 | struct sk_buff *skb; | |
1760 | struct page *page; | |
1761 | ||
1762 | rx_buffer = &rx_ring->rx_buffer_info[rx_ring->next_to_clean]; | |
1763 | page = rx_buffer->page; | |
1764 | prefetchw(page); | |
1765 | ||
1766 | skb = rx_buffer->skb; | |
1767 | ||
1768 | if (likely(!skb)) { | |
1769 | void *page_addr = page_address(page) + | |
1770 | rx_buffer->page_offset; | |
1771 | ||
1772 | /* prefetch first cache line of first page */ | |
1773 | prefetch(page_addr); | |
1774 | #if L1_CACHE_BYTES < 128 | |
1775 | prefetch(page_addr + L1_CACHE_BYTES); | |
1776 | #endif | |
1777 | ||
1778 | /* allocate a skb to store the frags */ | |
1779 | skb = netdev_alloc_skb_ip_align(rx_ring->netdev, | |
1780 | IXGBE_RX_HDR_SIZE); | |
1781 | if (unlikely(!skb)) { | |
1782 | rx_ring->rx_stats.alloc_rx_buff_failed++; | |
1783 | return NULL; | |
1784 | } | |
1785 | ||
1786 | /* | |
1787 | * we will be copying header into skb->data in | |
1788 | * pskb_may_pull so it is in our interest to prefetch | |
1789 | * it now to avoid a possible cache miss | |
1790 | */ | |
1791 | prefetchw(skb->data); | |
1792 | ||
1793 | /* | |
1794 | * Delay unmapping of the first packet. It carries the | |
1795 | * header information, HW may still access the header | |
1796 | * after the writeback. Only unmap it when EOP is | |
1797 | * reached | |
1798 | */ | |
1799 | if (likely(ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_EOP))) | |
1800 | goto dma_sync; | |
1801 | ||
1802 | IXGBE_CB(skb)->dma = rx_buffer->dma; | |
1803 | } else { | |
1804 | if (ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_EOP)) | |
1805 | ixgbe_dma_sync_frag(rx_ring, skb); | |
1806 | ||
1807 | dma_sync: | |
1808 | /* we are reusing so sync this buffer for CPU use */ | |
1809 | dma_sync_single_range_for_cpu(rx_ring->dev, | |
1810 | rx_buffer->dma, | |
1811 | rx_buffer->page_offset, | |
1812 | ixgbe_rx_bufsz(rx_ring), | |
1813 | DMA_FROM_DEVICE); | |
1814 | } | |
1815 | ||
1816 | /* pull page into skb */ | |
1817 | if (ixgbe_add_rx_frag(rx_ring, rx_buffer, rx_desc, skb)) { | |
1818 | /* hand second half of page back to the ring */ | |
1819 | ixgbe_reuse_rx_page(rx_ring, rx_buffer); | |
1820 | } else if (IXGBE_CB(skb)->dma == rx_buffer->dma) { | |
1821 | /* the page has been released from the ring */ | |
1822 | IXGBE_CB(skb)->page_released = true; | |
1823 | } else { | |
1824 | /* we are not reusing the buffer so unmap it */ | |
1825 | dma_unmap_page(rx_ring->dev, rx_buffer->dma, | |
1826 | ixgbe_rx_pg_size(rx_ring), | |
1827 | DMA_FROM_DEVICE); | |
1828 | } | |
1829 | ||
1830 | /* clear contents of buffer_info */ | |
1831 | rx_buffer->skb = NULL; | |
1832 | rx_buffer->dma = 0; | |
1833 | rx_buffer->page = NULL; | |
1834 | ||
1835 | return skb; | |
f800326d AD |
1836 | } |
1837 | ||
1838 | /** | |
1839 | * ixgbe_clean_rx_irq - Clean completed descriptors from Rx ring - bounce buf | |
1840 | * @q_vector: structure containing interrupt and ring information | |
1841 | * @rx_ring: rx descriptor ring to transact packets on | |
1842 | * @budget: Total limit on number of packets to process | |
1843 | * | |
1844 | * This function provides a "bounce buffer" approach to Rx interrupt | |
1845 | * processing. The advantage to this is that on systems that have | |
1846 | * expensive overhead for IOMMU access this provides a means of avoiding | |
1847 | * it by maintaining the mapping of the page to the syste. | |
1848 | * | |
1849 | * Returns true if all work is completed without reaching budget | |
1850 | **/ | |
4ff7fb12 | 1851 | static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector, |
e8e9f696 | 1852 | struct ixgbe_ring *rx_ring, |
f4de00ed | 1853 | const int budget) |
9a799d71 | 1854 | { |
d2f4fbe2 | 1855 | unsigned int total_rx_bytes = 0, total_rx_packets = 0; |
3f2d1c0f | 1856 | #ifdef IXGBE_FCOE |
f800326d | 1857 | struct ixgbe_adapter *adapter = q_vector->adapter; |
4ffdf91a MR |
1858 | int ddp_bytes; |
1859 | unsigned int mss = 0; | |
3d8fd385 | 1860 | #endif /* IXGBE_FCOE */ |
f800326d | 1861 | u16 cleaned_count = ixgbe_desc_unused(rx_ring); |
9a799d71 | 1862 | |
f800326d | 1863 | do { |
f800326d AD |
1864 | union ixgbe_adv_rx_desc *rx_desc; |
1865 | struct sk_buff *skb; | |
f800326d AD |
1866 | |
1867 | /* return some buffers to hardware, one at a time is too slow */ | |
1868 | if (cleaned_count >= IXGBE_RX_BUFFER_WRITE) { | |
1869 | ixgbe_alloc_rx_buffers(rx_ring, cleaned_count); | |
1870 | cleaned_count = 0; | |
1871 | } | |
1872 | ||
18806c9e | 1873 | rx_desc = IXGBE_RX_DESC(rx_ring, rx_ring->next_to_clean); |
f800326d AD |
1874 | |
1875 | if (!ixgbe_test_staterr(rx_desc, IXGBE_RXD_STAT_DD)) | |
1876 | break; | |
9a799d71 | 1877 | |
f800326d AD |
1878 | /* |
1879 | * This memory barrier is needed to keep us from reading | |
1880 | * any other fields out of the rx_desc until we know the | |
1881 | * RXD_STAT_DD bit is set | |
1882 | */ | |
1883 | rmb(); | |
9a799d71 | 1884 | |
18806c9e AD |
1885 | /* retrieve a buffer from the ring */ |
1886 | skb = ixgbe_fetch_rx_buffer(rx_ring, rx_desc); | |
f800326d | 1887 | |
18806c9e AD |
1888 | /* exit if we failed to retrieve a buffer */ |
1889 | if (!skb) | |
1890 | break; | |
9a799d71 | 1891 | |
9a799d71 | 1892 | cleaned_count++; |
f8212f97 | 1893 | |
f800326d AD |
1894 | /* place incomplete frames back on ring for completion */ |
1895 | if (ixgbe_is_non_eop(rx_ring, rx_desc, skb)) | |
1896 | continue; | |
c267fc16 | 1897 | |
f800326d AD |
1898 | /* verify the packet layout is correct */ |
1899 | if (ixgbe_cleanup_headers(rx_ring, rx_desc, skb)) | |
1900 | continue; | |
9a799d71 | 1901 | |
d2f4fbe2 AV |
1902 | /* probably a little skewed due to removing CRC */ |
1903 | total_rx_bytes += skb->len; | |
d2f4fbe2 | 1904 | |
8a0da21b AD |
1905 | /* populate checksum, timestamp, VLAN, and protocol */ |
1906 | ixgbe_process_skb_fields(rx_ring, rx_desc, skb); | |
1907 | ||
332d4a7d YZ |
1908 | #ifdef IXGBE_FCOE |
1909 | /* if ddp, not passing to ULD unless for FCP_RSP or error */ | |
57efd44c | 1910 | if (ixgbe_rx_is_fcoe(rx_ring, rx_desc)) { |
f56e0cb1 | 1911 | ddp_bytes = ixgbe_fcoe_ddp(adapter, rx_desc, skb); |
4ffdf91a MR |
1912 | /* include DDPed FCoE data */ |
1913 | if (ddp_bytes > 0) { | |
1914 | if (!mss) { | |
1915 | mss = rx_ring->netdev->mtu - | |
1916 | sizeof(struct fcoe_hdr) - | |
1917 | sizeof(struct fc_frame_header) - | |
1918 | sizeof(struct fcoe_crc_eof); | |
1919 | if (mss > 512) | |
1920 | mss &= ~511; | |
1921 | } | |
1922 | total_rx_bytes += ddp_bytes; | |
1923 | total_rx_packets += DIV_ROUND_UP(ddp_bytes, | |
1924 | mss); | |
1925 | } | |
63d635b2 AD |
1926 | if (!ddp_bytes) { |
1927 | dev_kfree_skb_any(skb); | |
f800326d | 1928 | continue; |
63d635b2 | 1929 | } |
3d8fd385 | 1930 | } |
f800326d | 1931 | |
332d4a7d | 1932 | #endif /* IXGBE_FCOE */ |
8a0da21b | 1933 | ixgbe_rx_skb(q_vector, skb); |
9a799d71 | 1934 | |
f800326d | 1935 | /* update budget accounting */ |
f4de00ed AD |
1936 | total_rx_packets++; |
1937 | } while (likely(total_rx_packets < budget)); | |
9a799d71 | 1938 | |
c267fc16 AD |
1939 | u64_stats_update_begin(&rx_ring->syncp); |
1940 | rx_ring->stats.packets += total_rx_packets; | |
1941 | rx_ring->stats.bytes += total_rx_bytes; | |
1942 | u64_stats_update_end(&rx_ring->syncp); | |
bd198058 AD |
1943 | q_vector->rx.total_packets += total_rx_packets; |
1944 | q_vector->rx.total_bytes += total_rx_bytes; | |
4ff7fb12 | 1945 | |
f800326d AD |
1946 | if (cleaned_count) |
1947 | ixgbe_alloc_rx_buffers(rx_ring, cleaned_count); | |
1948 | ||
f4de00ed | 1949 | return (total_rx_packets < budget); |
9a799d71 AK |
1950 | } |
1951 | ||
9a799d71 AK |
1952 | /** |
1953 | * ixgbe_configure_msix - Configure MSI-X hardware | |
1954 | * @adapter: board private structure | |
1955 | * | |
1956 | * ixgbe_configure_msix sets up the hardware to properly generate MSI-X | |
1957 | * interrupts. | |
1958 | **/ | |
1959 | static void ixgbe_configure_msix(struct ixgbe_adapter *adapter) | |
1960 | { | |
021230d4 | 1961 | struct ixgbe_q_vector *q_vector; |
49c7ffbe | 1962 | int v_idx; |
021230d4 | 1963 | u32 mask; |
9a799d71 | 1964 | |
8e34d1aa AD |
1965 | /* Populate MSIX to EITR Select */ |
1966 | if (adapter->num_vfs > 32) { | |
1967 | u32 eitrsel = (1 << (adapter->num_vfs - 32)) - 1; | |
1968 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, eitrsel); | |
1969 | } | |
1970 | ||
4df10466 JB |
1971 | /* |
1972 | * Populate the IVAR table and set the ITR values to the | |
021230d4 AV |
1973 | * corresponding register. |
1974 | */ | |
49c7ffbe | 1975 | for (v_idx = 0; v_idx < adapter->num_q_vectors; v_idx++) { |
efe3d3c8 | 1976 | struct ixgbe_ring *ring; |
7a921c93 | 1977 | q_vector = adapter->q_vector[v_idx]; |
021230d4 | 1978 | |
a557928e | 1979 | ixgbe_for_each_ring(ring, q_vector->rx) |
efe3d3c8 AD |
1980 | ixgbe_set_ivar(adapter, 0, ring->reg_idx, v_idx); |
1981 | ||
a557928e | 1982 | ixgbe_for_each_ring(ring, q_vector->tx) |
efe3d3c8 AD |
1983 | ixgbe_set_ivar(adapter, 1, ring->reg_idx, v_idx); |
1984 | ||
fe49f04a | 1985 | ixgbe_write_eitr(q_vector); |
9a799d71 AK |
1986 | } |
1987 | ||
bd508178 AD |
1988 | switch (adapter->hw.mac.type) { |
1989 | case ixgbe_mac_82598EB: | |
e8e26350 | 1990 | ixgbe_set_ivar(adapter, -1, IXGBE_IVAR_OTHER_CAUSES_INDEX, |
e8e9f696 | 1991 | v_idx); |
bd508178 AD |
1992 | break; |
1993 | case ixgbe_mac_82599EB: | |
b93a2226 | 1994 | case ixgbe_mac_X540: |
e8e26350 | 1995 | ixgbe_set_ivar(adapter, -1, 1, v_idx); |
bd508178 | 1996 | break; |
bd508178 AD |
1997 | default: |
1998 | break; | |
1999 | } | |
021230d4 AV |
2000 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITR(v_idx), 1950); |
2001 | ||
41fb9248 | 2002 | /* set up to autoclear timer, and the vectors */ |
021230d4 | 2003 | mask = IXGBE_EIMS_ENABLE_MASK; |
d5bf4f67 ET |
2004 | mask &= ~(IXGBE_EIMS_OTHER | |
2005 | IXGBE_EIMS_MAILBOX | | |
2006 | IXGBE_EIMS_LSC); | |
2007 | ||
021230d4 | 2008 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIAC, mask); |
9a799d71 AK |
2009 | } |
2010 | ||
f494e8fa AV |
2011 | enum latency_range { |
2012 | lowest_latency = 0, | |
2013 | low_latency = 1, | |
2014 | bulk_latency = 2, | |
2015 | latency_invalid = 255 | |
2016 | }; | |
2017 | ||
2018 | /** | |
2019 | * ixgbe_update_itr - update the dynamic ITR value based on statistics | |
bd198058 AD |
2020 | * @q_vector: structure containing interrupt and ring information |
2021 | * @ring_container: structure containing ring performance data | |
f494e8fa AV |
2022 | * |
2023 | * Stores a new ITR value based on packets and byte | |
2024 | * counts during the last interrupt. The advantage of per interrupt | |
2025 | * computation is faster updates and more accurate ITR for the current | |
2026 | * traffic pattern. Constants in this function were computed | |
2027 | * based on theoretical maximum wire speed and thresholds were set based | |
2028 | * on testing data as well as attempting to minimize response time | |
2029 | * while increasing bulk throughput. | |
2030 | * this functionality is controlled by the InterruptThrottleRate module | |
2031 | * parameter (see ixgbe_param.c) | |
2032 | **/ | |
bd198058 AD |
2033 | static void ixgbe_update_itr(struct ixgbe_q_vector *q_vector, |
2034 | struct ixgbe_ring_container *ring_container) | |
f494e8fa | 2035 | { |
bd198058 AD |
2036 | int bytes = ring_container->total_bytes; |
2037 | int packets = ring_container->total_packets; | |
2038 | u32 timepassed_us; | |
621bd70e | 2039 | u64 bytes_perint; |
bd198058 | 2040 | u8 itr_setting = ring_container->itr; |
f494e8fa AV |
2041 | |
2042 | if (packets == 0) | |
bd198058 | 2043 | return; |
f494e8fa AV |
2044 | |
2045 | /* simple throttlerate management | |
621bd70e AD |
2046 | * 0-10MB/s lowest (100000 ints/s) |
2047 | * 10-20MB/s low (20000 ints/s) | |
2048 | * 20-1249MB/s bulk (8000 ints/s) | |
f494e8fa AV |
2049 | */ |
2050 | /* what was last interrupt timeslice? */ | |
d5bf4f67 | 2051 | timepassed_us = q_vector->itr >> 2; |
f494e8fa AV |
2052 | bytes_perint = bytes / timepassed_us; /* bytes/usec */ |
2053 | ||
2054 | switch (itr_setting) { | |
2055 | case lowest_latency: | |
621bd70e | 2056 | if (bytes_perint > 10) |
bd198058 | 2057 | itr_setting = low_latency; |
f494e8fa AV |
2058 | break; |
2059 | case low_latency: | |
621bd70e | 2060 | if (bytes_perint > 20) |
bd198058 | 2061 | itr_setting = bulk_latency; |
621bd70e | 2062 | else if (bytes_perint <= 10) |
bd198058 | 2063 | itr_setting = lowest_latency; |
f494e8fa AV |
2064 | break; |
2065 | case bulk_latency: | |
621bd70e | 2066 | if (bytes_perint <= 20) |
bd198058 | 2067 | itr_setting = low_latency; |
f494e8fa AV |
2068 | break; |
2069 | } | |
2070 | ||
bd198058 AD |
2071 | /* clear work counters since we have the values we need */ |
2072 | ring_container->total_bytes = 0; | |
2073 | ring_container->total_packets = 0; | |
2074 | ||
2075 | /* write updated itr to ring container */ | |
2076 | ring_container->itr = itr_setting; | |
f494e8fa AV |
2077 | } |
2078 | ||
509ee935 JB |
2079 | /** |
2080 | * ixgbe_write_eitr - write EITR register in hardware specific way | |
fe49f04a | 2081 | * @q_vector: structure containing interrupt and ring information |
509ee935 JB |
2082 | * |
2083 | * This function is made to be called by ethtool and by the driver | |
2084 | * when it needs to update EITR registers at runtime. Hardware | |
2085 | * specific quirks/differences are taken care of here. | |
2086 | */ | |
fe49f04a | 2087 | void ixgbe_write_eitr(struct ixgbe_q_vector *q_vector) |
509ee935 | 2088 | { |
fe49f04a | 2089 | struct ixgbe_adapter *adapter = q_vector->adapter; |
509ee935 | 2090 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a | 2091 | int v_idx = q_vector->v_idx; |
5d967eb7 | 2092 | u32 itr_reg = q_vector->itr & IXGBE_MAX_EITR; |
fe49f04a | 2093 | |
bd508178 AD |
2094 | switch (adapter->hw.mac.type) { |
2095 | case ixgbe_mac_82598EB: | |
509ee935 JB |
2096 | /* must write high and low 16 bits to reset counter */ |
2097 | itr_reg |= (itr_reg << 16); | |
bd508178 AD |
2098 | break; |
2099 | case ixgbe_mac_82599EB: | |
b93a2226 | 2100 | case ixgbe_mac_X540: |
509ee935 JB |
2101 | /* |
2102 | * set the WDIS bit to not clear the timer bits and cause an | |
2103 | * immediate assertion of the interrupt | |
2104 | */ | |
2105 | itr_reg |= IXGBE_EITR_CNT_WDIS; | |
bd508178 AD |
2106 | break; |
2107 | default: | |
2108 | break; | |
509ee935 JB |
2109 | } |
2110 | IXGBE_WRITE_REG(hw, IXGBE_EITR(v_idx), itr_reg); | |
2111 | } | |
2112 | ||
bd198058 | 2113 | static void ixgbe_set_itr(struct ixgbe_q_vector *q_vector) |
f494e8fa | 2114 | { |
d5bf4f67 | 2115 | u32 new_itr = q_vector->itr; |
bd198058 | 2116 | u8 current_itr; |
f494e8fa | 2117 | |
bd198058 AD |
2118 | ixgbe_update_itr(q_vector, &q_vector->tx); |
2119 | ixgbe_update_itr(q_vector, &q_vector->rx); | |
f494e8fa | 2120 | |
08c8833b | 2121 | current_itr = max(q_vector->rx.itr, q_vector->tx.itr); |
f494e8fa AV |
2122 | |
2123 | switch (current_itr) { | |
2124 | /* counts and packets in update_itr are dependent on these numbers */ | |
2125 | case lowest_latency: | |
d5bf4f67 | 2126 | new_itr = IXGBE_100K_ITR; |
f494e8fa AV |
2127 | break; |
2128 | case low_latency: | |
d5bf4f67 | 2129 | new_itr = IXGBE_20K_ITR; |
f494e8fa AV |
2130 | break; |
2131 | case bulk_latency: | |
d5bf4f67 | 2132 | new_itr = IXGBE_8K_ITR; |
f494e8fa | 2133 | break; |
bd198058 AD |
2134 | default: |
2135 | break; | |
f494e8fa AV |
2136 | } |
2137 | ||
d5bf4f67 | 2138 | if (new_itr != q_vector->itr) { |
fe49f04a | 2139 | /* do an exponential smoothing */ |
d5bf4f67 ET |
2140 | new_itr = (10 * new_itr * q_vector->itr) / |
2141 | ((9 * new_itr) + q_vector->itr); | |
509ee935 | 2142 | |
bd198058 | 2143 | /* save the algorithm value here */ |
5d967eb7 | 2144 | q_vector->itr = new_itr; |
fe49f04a AD |
2145 | |
2146 | ixgbe_write_eitr(q_vector); | |
f494e8fa | 2147 | } |
f494e8fa AV |
2148 | } |
2149 | ||
119fc60a | 2150 | /** |
de88eeeb | 2151 | * ixgbe_check_overtemp_subtask - check for over temperature |
f0f9778d | 2152 | * @adapter: pointer to adapter |
119fc60a | 2153 | **/ |
f0f9778d | 2154 | static void ixgbe_check_overtemp_subtask(struct ixgbe_adapter *adapter) |
119fc60a | 2155 | { |
119fc60a MC |
2156 | struct ixgbe_hw *hw = &adapter->hw; |
2157 | u32 eicr = adapter->interrupt_event; | |
2158 | ||
f0f9778d | 2159 | if (test_bit(__IXGBE_DOWN, &adapter->state)) |
7ca647bd JP |
2160 | return; |
2161 | ||
f0f9778d AD |
2162 | if (!(adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) && |
2163 | !(adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_EVENT)) | |
2164 | return; | |
2165 | ||
2166 | adapter->flags2 &= ~IXGBE_FLAG2_TEMP_SENSOR_EVENT; | |
2167 | ||
7ca647bd | 2168 | switch (hw->device_id) { |
f0f9778d AD |
2169 | case IXGBE_DEV_ID_82599_T3_LOM: |
2170 | /* | |
2171 | * Since the warning interrupt is for both ports | |
2172 | * we don't have to check if: | |
2173 | * - This interrupt wasn't for our port. | |
2174 | * - We may have missed the interrupt so always have to | |
2175 | * check if we got a LSC | |
2176 | */ | |
2177 | if (!(eicr & IXGBE_EICR_GPI_SDP0) && | |
2178 | !(eicr & IXGBE_EICR_LSC)) | |
2179 | return; | |
2180 | ||
2181 | if (!(eicr & IXGBE_EICR_LSC) && hw->mac.ops.check_link) { | |
3d292265 | 2182 | u32 speed; |
f0f9778d | 2183 | bool link_up = false; |
7ca647bd | 2184 | |
3d292265 | 2185 | hw->mac.ops.check_link(hw, &speed, &link_up, false); |
7ca647bd | 2186 | |
f0f9778d AD |
2187 | if (link_up) |
2188 | return; | |
2189 | } | |
2190 | ||
2191 | /* Check if this is not due to overtemp */ | |
2192 | if (hw->phy.ops.check_overtemp(hw) != IXGBE_ERR_OVERTEMP) | |
2193 | return; | |
2194 | ||
2195 | break; | |
7ca647bd JP |
2196 | default: |
2197 | if (!(eicr & IXGBE_EICR_GPI_SDP0)) | |
119fc60a | 2198 | return; |
7ca647bd | 2199 | break; |
119fc60a | 2200 | } |
7ca647bd JP |
2201 | e_crit(drv, |
2202 | "Network adapter has been stopped because it has over heated. " | |
2203 | "Restart the computer. If the problem persists, " | |
2204 | "power off the system and replace the adapter\n"); | |
f0f9778d AD |
2205 | |
2206 | adapter->interrupt_event = 0; | |
119fc60a MC |
2207 | } |
2208 | ||
0befdb3e JB |
2209 | static void ixgbe_check_fan_failure(struct ixgbe_adapter *adapter, u32 eicr) |
2210 | { | |
2211 | struct ixgbe_hw *hw = &adapter->hw; | |
2212 | ||
2213 | if ((adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) && | |
2214 | (eicr & IXGBE_EICR_GPI_SDP1)) { | |
396e799c | 2215 | e_crit(probe, "Fan has stopped, replace the adapter\n"); |
0befdb3e JB |
2216 | /* write to clear the interrupt */ |
2217 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP1); | |
2218 | } | |
2219 | } | |
cf8280ee | 2220 | |
4f51bf70 JK |
2221 | static void ixgbe_check_overtemp_event(struct ixgbe_adapter *adapter, u32 eicr) |
2222 | { | |
2223 | if (!(adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE)) | |
2224 | return; | |
2225 | ||
2226 | switch (adapter->hw.mac.type) { | |
2227 | case ixgbe_mac_82599EB: | |
2228 | /* | |
2229 | * Need to check link state so complete overtemp check | |
2230 | * on service task | |
2231 | */ | |
2232 | if (((eicr & IXGBE_EICR_GPI_SDP0) || (eicr & IXGBE_EICR_LSC)) && | |
2233 | (!test_bit(__IXGBE_DOWN, &adapter->state))) { | |
2234 | adapter->interrupt_event = eicr; | |
2235 | adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_EVENT; | |
2236 | ixgbe_service_event_schedule(adapter); | |
2237 | return; | |
2238 | } | |
2239 | return; | |
2240 | case ixgbe_mac_X540: | |
2241 | if (!(eicr & IXGBE_EICR_TS)) | |
2242 | return; | |
2243 | break; | |
2244 | default: | |
2245 | return; | |
2246 | } | |
2247 | ||
2248 | e_crit(drv, | |
2249 | "Network adapter has been stopped because it has over heated. " | |
2250 | "Restart the computer. If the problem persists, " | |
2251 | "power off the system and replace the adapter\n"); | |
2252 | } | |
2253 | ||
e8e26350 PW |
2254 | static void ixgbe_check_sfp_event(struct ixgbe_adapter *adapter, u32 eicr) |
2255 | { | |
2256 | struct ixgbe_hw *hw = &adapter->hw; | |
2257 | ||
73c4b7cd AD |
2258 | if (eicr & IXGBE_EICR_GPI_SDP2) { |
2259 | /* Clear the interrupt */ | |
2260 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP2); | |
7086400d AD |
2261 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { |
2262 | adapter->flags2 |= IXGBE_FLAG2_SFP_NEEDS_RESET; | |
2263 | ixgbe_service_event_schedule(adapter); | |
2264 | } | |
73c4b7cd AD |
2265 | } |
2266 | ||
e8e26350 PW |
2267 | if (eicr & IXGBE_EICR_GPI_SDP1) { |
2268 | /* Clear the interrupt */ | |
2269 | IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP1); | |
7086400d AD |
2270 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { |
2271 | adapter->flags |= IXGBE_FLAG_NEED_LINK_CONFIG; | |
2272 | ixgbe_service_event_schedule(adapter); | |
2273 | } | |
e8e26350 PW |
2274 | } |
2275 | } | |
2276 | ||
cf8280ee JB |
2277 | static void ixgbe_check_lsc(struct ixgbe_adapter *adapter) |
2278 | { | |
2279 | struct ixgbe_hw *hw = &adapter->hw; | |
2280 | ||
2281 | adapter->lsc_int++; | |
2282 | adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; | |
2283 | adapter->link_check_timeout = jiffies; | |
2284 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) { | |
2285 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_EIMC_LSC); | |
8a0717f3 | 2286 | IXGBE_WRITE_FLUSH(hw); |
93c52dd0 | 2287 | ixgbe_service_event_schedule(adapter); |
cf8280ee JB |
2288 | } |
2289 | } | |
2290 | ||
fe49f04a AD |
2291 | static inline void ixgbe_irq_enable_queues(struct ixgbe_adapter *adapter, |
2292 | u64 qmask) | |
2293 | { | |
2294 | u32 mask; | |
bd508178 | 2295 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a | 2296 | |
bd508178 AD |
2297 | switch (hw->mac.type) { |
2298 | case ixgbe_mac_82598EB: | |
fe49f04a | 2299 | mask = (IXGBE_EIMS_RTX_QUEUE & qmask); |
bd508178 AD |
2300 | IXGBE_WRITE_REG(hw, IXGBE_EIMS, mask); |
2301 | break; | |
2302 | case ixgbe_mac_82599EB: | |
b93a2226 | 2303 | case ixgbe_mac_X540: |
fe49f04a | 2304 | mask = (qmask & 0xFFFFFFFF); |
bd508178 AD |
2305 | if (mask) |
2306 | IXGBE_WRITE_REG(hw, IXGBE_EIMS_EX(0), mask); | |
fe49f04a | 2307 | mask = (qmask >> 32); |
bd508178 AD |
2308 | if (mask) |
2309 | IXGBE_WRITE_REG(hw, IXGBE_EIMS_EX(1), mask); | |
2310 | break; | |
2311 | default: | |
2312 | break; | |
fe49f04a AD |
2313 | } |
2314 | /* skip the flush */ | |
2315 | } | |
2316 | ||
2317 | static inline void ixgbe_irq_disable_queues(struct ixgbe_adapter *adapter, | |
e8e9f696 | 2318 | u64 qmask) |
fe49f04a AD |
2319 | { |
2320 | u32 mask; | |
bd508178 | 2321 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a | 2322 | |
bd508178 AD |
2323 | switch (hw->mac.type) { |
2324 | case ixgbe_mac_82598EB: | |
fe49f04a | 2325 | mask = (IXGBE_EIMS_RTX_QUEUE & qmask); |
bd508178 AD |
2326 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, mask); |
2327 | break; | |
2328 | case ixgbe_mac_82599EB: | |
b93a2226 | 2329 | case ixgbe_mac_X540: |
fe49f04a | 2330 | mask = (qmask & 0xFFFFFFFF); |
bd508178 AD |
2331 | if (mask) |
2332 | IXGBE_WRITE_REG(hw, IXGBE_EIMC_EX(0), mask); | |
fe49f04a | 2333 | mask = (qmask >> 32); |
bd508178 AD |
2334 | if (mask) |
2335 | IXGBE_WRITE_REG(hw, IXGBE_EIMC_EX(1), mask); | |
2336 | break; | |
2337 | default: | |
2338 | break; | |
fe49f04a AD |
2339 | } |
2340 | /* skip the flush */ | |
2341 | } | |
2342 | ||
021230d4 | 2343 | /** |
2c4af694 AD |
2344 | * ixgbe_irq_enable - Enable default interrupt generation settings |
2345 | * @adapter: board private structure | |
021230d4 | 2346 | **/ |
2c4af694 AD |
2347 | static inline void ixgbe_irq_enable(struct ixgbe_adapter *adapter, bool queues, |
2348 | bool flush) | |
9a799d71 | 2349 | { |
2c4af694 | 2350 | u32 mask = (IXGBE_EIMS_ENABLE_MASK & ~IXGBE_EIMS_RTX_QUEUE); |
9a799d71 | 2351 | |
2c4af694 AD |
2352 | /* don't reenable LSC while waiting for link */ |
2353 | if (adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE) | |
2354 | mask &= ~IXGBE_EIMS_LSC; | |
9a799d71 | 2355 | |
2c4af694 | 2356 | if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) |
4f51bf70 JK |
2357 | switch (adapter->hw.mac.type) { |
2358 | case ixgbe_mac_82599EB: | |
2359 | mask |= IXGBE_EIMS_GPI_SDP0; | |
2360 | break; | |
2361 | case ixgbe_mac_X540: | |
2362 | mask |= IXGBE_EIMS_TS; | |
2363 | break; | |
2364 | default: | |
2365 | break; | |
2366 | } | |
2c4af694 AD |
2367 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) |
2368 | mask |= IXGBE_EIMS_GPI_SDP1; | |
2369 | switch (adapter->hw.mac.type) { | |
2370 | case ixgbe_mac_82599EB: | |
2c4af694 AD |
2371 | mask |= IXGBE_EIMS_GPI_SDP1; |
2372 | mask |= IXGBE_EIMS_GPI_SDP2; | |
858bc081 DS |
2373 | case ixgbe_mac_X540: |
2374 | mask |= IXGBE_EIMS_ECC; | |
2c4af694 AD |
2375 | mask |= IXGBE_EIMS_MAILBOX; |
2376 | break; | |
2377 | default: | |
2378 | break; | |
9a799d71 | 2379 | } |
db0677fa | 2380 | |
db0677fa JK |
2381 | if (adapter->hw.mac.type == ixgbe_mac_X540) |
2382 | mask |= IXGBE_EIMS_TIMESYNC; | |
db0677fa | 2383 | |
2c4af694 AD |
2384 | if ((adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) && |
2385 | !(adapter->flags2 & IXGBE_FLAG2_FDIR_REQUIRES_REINIT)) | |
2386 | mask |= IXGBE_EIMS_FLOW_DIR; | |
9a799d71 | 2387 | |
2c4af694 AD |
2388 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, mask); |
2389 | if (queues) | |
2390 | ixgbe_irq_enable_queues(adapter, ~0); | |
2391 | if (flush) | |
2392 | IXGBE_WRITE_FLUSH(&adapter->hw); | |
9a799d71 AK |
2393 | } |
2394 | ||
2c4af694 | 2395 | static irqreturn_t ixgbe_msix_other(int irq, void *data) |
f0848276 | 2396 | { |
a65151ba | 2397 | struct ixgbe_adapter *adapter = data; |
9a799d71 | 2398 | struct ixgbe_hw *hw = &adapter->hw; |
54037505 | 2399 | u32 eicr; |
91281fd3 | 2400 | |
54037505 DS |
2401 | /* |
2402 | * Workaround for Silicon errata. Use clear-by-write instead | |
2403 | * of clear-by-read. Reading with EICS will return the | |
2404 | * interrupt causes without clearing, which later be done | |
2405 | * with the write to EICR. | |
2406 | */ | |
2407 | eicr = IXGBE_READ_REG(hw, IXGBE_EICS); | |
2408 | IXGBE_WRITE_REG(hw, IXGBE_EICR, eicr); | |
33cf09c9 | 2409 | |
cf8280ee JB |
2410 | if (eicr & IXGBE_EICR_LSC) |
2411 | ixgbe_check_lsc(adapter); | |
f0848276 | 2412 | |
1cdd1ec8 GR |
2413 | if (eicr & IXGBE_EICR_MAILBOX) |
2414 | ixgbe_msg_task(adapter); | |
efe3d3c8 | 2415 | |
bd508178 AD |
2416 | switch (hw->mac.type) { |
2417 | case ixgbe_mac_82599EB: | |
b93a2226 | 2418 | case ixgbe_mac_X540: |
2c4af694 AD |
2419 | if (eicr & IXGBE_EICR_ECC) |
2420 | e_info(link, "Received unrecoverable ECC Err, please " | |
2421 | "reboot\n"); | |
c4cf55e5 PWJ |
2422 | /* Handle Flow Director Full threshold interrupt */ |
2423 | if (eicr & IXGBE_EICR_FLOW_DIR) { | |
d034acf1 | 2424 | int reinit_count = 0; |
c4cf55e5 | 2425 | int i; |
c4cf55e5 | 2426 | for (i = 0; i < adapter->num_tx_queues; i++) { |
d034acf1 | 2427 | struct ixgbe_ring *ring = adapter->tx_ring[i]; |
7d637bcc | 2428 | if (test_and_clear_bit(__IXGBE_TX_FDIR_INIT_DONE, |
d034acf1 AD |
2429 | &ring->state)) |
2430 | reinit_count++; | |
2431 | } | |
2432 | if (reinit_count) { | |
2433 | /* no more flow director interrupts until after init */ | |
2434 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_EIMC_FLOW_DIR); | |
d034acf1 AD |
2435 | adapter->flags2 |= IXGBE_FLAG2_FDIR_REQUIRES_REINIT; |
2436 | ixgbe_service_event_schedule(adapter); | |
c4cf55e5 PWJ |
2437 | } |
2438 | } | |
f0f9778d | 2439 | ixgbe_check_sfp_event(adapter, eicr); |
4f51bf70 | 2440 | ixgbe_check_overtemp_event(adapter, eicr); |
bd508178 AD |
2441 | break; |
2442 | default: | |
2443 | break; | |
c4cf55e5 | 2444 | } |
f0848276 | 2445 | |
bd508178 | 2446 | ixgbe_check_fan_failure(adapter, eicr); |
db0677fa | 2447 | |
db0677fa JK |
2448 | if (unlikely(eicr & IXGBE_EICR_TIMESYNC)) |
2449 | ixgbe_ptp_check_pps_event(adapter, eicr); | |
efe3d3c8 | 2450 | |
7086400d | 2451 | /* re-enable the original interrupt state, no lsc, no queues */ |
d4f80882 | 2452 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
2c4af694 | 2453 | ixgbe_irq_enable(adapter, false, false); |
f0848276 | 2454 | |
9a799d71 | 2455 | return IRQ_HANDLED; |
f0848276 | 2456 | } |
91281fd3 | 2457 | |
4ff7fb12 | 2458 | static irqreturn_t ixgbe_msix_clean_rings(int irq, void *data) |
91281fd3 | 2459 | { |
021230d4 | 2460 | struct ixgbe_q_vector *q_vector = data; |
91281fd3 | 2461 | |
9b471446 | 2462 | /* EIAM disabled interrupts (on this vector) for us */ |
91281fd3 | 2463 | |
4ff7fb12 AD |
2464 | if (q_vector->rx.ring || q_vector->tx.ring) |
2465 | napi_schedule(&q_vector->napi); | |
91281fd3 | 2466 | |
9a799d71 | 2467 | return IRQ_HANDLED; |
91281fd3 AD |
2468 | } |
2469 | ||
eb01b975 AD |
2470 | /** |
2471 | * ixgbe_poll - NAPI Rx polling callback | |
2472 | * @napi: structure for representing this polling device | |
2473 | * @budget: how many packets driver is allowed to clean | |
2474 | * | |
2475 | * This function is used for legacy and MSI, NAPI mode | |
2476 | **/ | |
8af3c33f | 2477 | int ixgbe_poll(struct napi_struct *napi, int budget) |
eb01b975 AD |
2478 | { |
2479 | struct ixgbe_q_vector *q_vector = | |
2480 | container_of(napi, struct ixgbe_q_vector, napi); | |
2481 | struct ixgbe_adapter *adapter = q_vector->adapter; | |
2482 | struct ixgbe_ring *ring; | |
2483 | int per_ring_budget; | |
2484 | bool clean_complete = true; | |
2485 | ||
2486 | #ifdef CONFIG_IXGBE_DCA | |
2487 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) | |
2488 | ixgbe_update_dca(q_vector); | |
2489 | #endif | |
2490 | ||
2491 | ixgbe_for_each_ring(ring, q_vector->tx) | |
2492 | clean_complete &= !!ixgbe_clean_tx_irq(q_vector, ring); | |
2493 | ||
2494 | /* attempt to distribute budget to each queue fairly, but don't allow | |
2495 | * the budget to go below 1 because we'll exit polling */ | |
2496 | if (q_vector->rx.count > 1) | |
2497 | per_ring_budget = max(budget/q_vector->rx.count, 1); | |
2498 | else | |
2499 | per_ring_budget = budget; | |
2500 | ||
2501 | ixgbe_for_each_ring(ring, q_vector->rx) | |
2502 | clean_complete &= ixgbe_clean_rx_irq(q_vector, ring, | |
2503 | per_ring_budget); | |
2504 | ||
2505 | /* If all work not completed, return budget and keep polling */ | |
2506 | if (!clean_complete) | |
2507 | return budget; | |
2508 | ||
2509 | /* all work done, exit the polling mode */ | |
2510 | napi_complete(napi); | |
2511 | if (adapter->rx_itr_setting & 1) | |
2512 | ixgbe_set_itr(q_vector); | |
2513 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) | |
2514 | ixgbe_irq_enable_queues(adapter, ((u64)1 << q_vector->v_idx)); | |
2515 | ||
2516 | return 0; | |
2517 | } | |
2518 | ||
021230d4 AV |
2519 | /** |
2520 | * ixgbe_request_msix_irqs - Initialize MSI-X interrupts | |
2521 | * @adapter: board private structure | |
2522 | * | |
2523 | * ixgbe_request_msix_irqs allocates MSI-X vectors and requests | |
2524 | * interrupts from the kernel. | |
2525 | **/ | |
2526 | static int ixgbe_request_msix_irqs(struct ixgbe_adapter *adapter) | |
2527 | { | |
2528 | struct net_device *netdev = adapter->netdev; | |
207867f5 | 2529 | int vector, err; |
e8e9f696 | 2530 | int ri = 0, ti = 0; |
021230d4 | 2531 | |
49c7ffbe | 2532 | for (vector = 0; vector < adapter->num_q_vectors; vector++) { |
d0759ebb | 2533 | struct ixgbe_q_vector *q_vector = adapter->q_vector[vector]; |
207867f5 | 2534 | struct msix_entry *entry = &adapter->msix_entries[vector]; |
cb13fc20 | 2535 | |
4ff7fb12 | 2536 | if (q_vector->tx.ring && q_vector->rx.ring) { |
9fe93afd | 2537 | snprintf(q_vector->name, sizeof(q_vector->name) - 1, |
4ff7fb12 AD |
2538 | "%s-%s-%d", netdev->name, "TxRx", ri++); |
2539 | ti++; | |
2540 | } else if (q_vector->rx.ring) { | |
9fe93afd | 2541 | snprintf(q_vector->name, sizeof(q_vector->name) - 1, |
4ff7fb12 AD |
2542 | "%s-%s-%d", netdev->name, "rx", ri++); |
2543 | } else if (q_vector->tx.ring) { | |
9fe93afd | 2544 | snprintf(q_vector->name, sizeof(q_vector->name) - 1, |
4ff7fb12 | 2545 | "%s-%s-%d", netdev->name, "tx", ti++); |
d0759ebb AD |
2546 | } else { |
2547 | /* skip this unused q_vector */ | |
2548 | continue; | |
32aa77a4 | 2549 | } |
207867f5 AD |
2550 | err = request_irq(entry->vector, &ixgbe_msix_clean_rings, 0, |
2551 | q_vector->name, q_vector); | |
9a799d71 | 2552 | if (err) { |
396e799c | 2553 | e_err(probe, "request_irq failed for MSIX interrupt " |
849c4542 | 2554 | "Error: %d\n", err); |
021230d4 | 2555 | goto free_queue_irqs; |
9a799d71 | 2556 | } |
207867f5 AD |
2557 | /* If Flow Director is enabled, set interrupt affinity */ |
2558 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { | |
2559 | /* assign the mask for this irq */ | |
2560 | irq_set_affinity_hint(entry->vector, | |
de88eeeb | 2561 | &q_vector->affinity_mask); |
207867f5 | 2562 | } |
9a799d71 AK |
2563 | } |
2564 | ||
021230d4 | 2565 | err = request_irq(adapter->msix_entries[vector].vector, |
2c4af694 | 2566 | ixgbe_msix_other, 0, netdev->name, adapter); |
9a799d71 | 2567 | if (err) { |
de88eeeb | 2568 | e_err(probe, "request_irq for msix_other failed: %d\n", err); |
021230d4 | 2569 | goto free_queue_irqs; |
9a799d71 AK |
2570 | } |
2571 | ||
9a799d71 AK |
2572 | return 0; |
2573 | ||
021230d4 | 2574 | free_queue_irqs: |
207867f5 AD |
2575 | while (vector) { |
2576 | vector--; | |
2577 | irq_set_affinity_hint(adapter->msix_entries[vector].vector, | |
2578 | NULL); | |
2579 | free_irq(adapter->msix_entries[vector].vector, | |
2580 | adapter->q_vector[vector]); | |
2581 | } | |
021230d4 AV |
2582 | adapter->flags &= ~IXGBE_FLAG_MSIX_ENABLED; |
2583 | pci_disable_msix(adapter->pdev); | |
9a799d71 AK |
2584 | kfree(adapter->msix_entries); |
2585 | adapter->msix_entries = NULL; | |
9a799d71 AK |
2586 | return err; |
2587 | } | |
2588 | ||
2589 | /** | |
021230d4 | 2590 | * ixgbe_intr - legacy mode Interrupt Handler |
9a799d71 AK |
2591 | * @irq: interrupt number |
2592 | * @data: pointer to a network interface device structure | |
9a799d71 AK |
2593 | **/ |
2594 | static irqreturn_t ixgbe_intr(int irq, void *data) | |
2595 | { | |
a65151ba | 2596 | struct ixgbe_adapter *adapter = data; |
9a799d71 | 2597 | struct ixgbe_hw *hw = &adapter->hw; |
7a921c93 | 2598 | struct ixgbe_q_vector *q_vector = adapter->q_vector[0]; |
9a799d71 AK |
2599 | u32 eicr; |
2600 | ||
54037505 | 2601 | /* |
24ddd967 | 2602 | * Workaround for silicon errata #26 on 82598. Mask the interrupt |
54037505 DS |
2603 | * before the read of EICR. |
2604 | */ | |
2605 | IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_IRQ_CLEAR_MASK); | |
2606 | ||
021230d4 | 2607 | /* for NAPI, using EIAM to auto-mask tx/rx interrupt bits on read |
52f33af8 | 2608 | * therefore no explicit interrupt disable is necessary */ |
021230d4 | 2609 | eicr = IXGBE_READ_REG(hw, IXGBE_EICR); |
f47cf66e | 2610 | if (!eicr) { |
6af3b9eb ET |
2611 | /* |
2612 | * shared interrupt alert! | |
f47cf66e | 2613 | * make sure interrupts are enabled because the read will |
6af3b9eb ET |
2614 | * have disabled interrupts due to EIAM |
2615 | * finish the workaround of silicon errata on 82598. Unmask | |
2616 | * the interrupt that we masked before the EICR read. | |
2617 | */ | |
2618 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) | |
2619 | ixgbe_irq_enable(adapter, true, true); | |
9a799d71 | 2620 | return IRQ_NONE; /* Not our interrupt */ |
f47cf66e | 2621 | } |
9a799d71 | 2622 | |
cf8280ee JB |
2623 | if (eicr & IXGBE_EICR_LSC) |
2624 | ixgbe_check_lsc(adapter); | |
021230d4 | 2625 | |
bd508178 AD |
2626 | switch (hw->mac.type) { |
2627 | case ixgbe_mac_82599EB: | |
e8e26350 | 2628 | ixgbe_check_sfp_event(adapter, eicr); |
0ccb974d DS |
2629 | /* Fall through */ |
2630 | case ixgbe_mac_X540: | |
2631 | if (eicr & IXGBE_EICR_ECC) | |
2632 | e_info(link, "Received unrecoverable ECC err, please " | |
2633 | "reboot\n"); | |
4f51bf70 | 2634 | ixgbe_check_overtemp_event(adapter, eicr); |
bd508178 AD |
2635 | break; |
2636 | default: | |
2637 | break; | |
2638 | } | |
e8e26350 | 2639 | |
0befdb3e | 2640 | ixgbe_check_fan_failure(adapter, eicr); |
db0677fa JK |
2641 | if (unlikely(eicr & IXGBE_EICR_TIMESYNC)) |
2642 | ixgbe_ptp_check_pps_event(adapter, eicr); | |
0befdb3e | 2643 | |
b9f6ed2b AD |
2644 | /* would disable interrupts here but EIAM disabled it */ |
2645 | napi_schedule(&q_vector->napi); | |
9a799d71 | 2646 | |
6af3b9eb ET |
2647 | /* |
2648 | * re-enable link(maybe) and non-queue interrupts, no flush. | |
2649 | * ixgbe_poll will re-enable the queue interrupts | |
2650 | */ | |
6af3b9eb ET |
2651 | if (!test_bit(__IXGBE_DOWN, &adapter->state)) |
2652 | ixgbe_irq_enable(adapter, false, false); | |
2653 | ||
9a799d71 AK |
2654 | return IRQ_HANDLED; |
2655 | } | |
2656 | ||
2657 | /** | |
2658 | * ixgbe_request_irq - initialize interrupts | |
2659 | * @adapter: board private structure | |
2660 | * | |
2661 | * Attempts to configure interrupts using the best available | |
2662 | * capabilities of the hardware and kernel. | |
2663 | **/ | |
021230d4 | 2664 | static int ixgbe_request_irq(struct ixgbe_adapter *adapter) |
9a799d71 AK |
2665 | { |
2666 | struct net_device *netdev = adapter->netdev; | |
021230d4 | 2667 | int err; |
9a799d71 | 2668 | |
4cc6df29 | 2669 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) |
021230d4 | 2670 | err = ixgbe_request_msix_irqs(adapter); |
4cc6df29 | 2671 | else if (adapter->flags & IXGBE_FLAG_MSI_ENABLED) |
a0607fd3 | 2672 | err = request_irq(adapter->pdev->irq, ixgbe_intr, 0, |
a65151ba | 2673 | netdev->name, adapter); |
4cc6df29 | 2674 | else |
a0607fd3 | 2675 | err = request_irq(adapter->pdev->irq, ixgbe_intr, IRQF_SHARED, |
a65151ba | 2676 | netdev->name, adapter); |
9a799d71 | 2677 | |
de88eeeb | 2678 | if (err) |
396e799c | 2679 | e_err(probe, "request_irq failed, Error %d\n", err); |
9a799d71 | 2680 | |
9a799d71 AK |
2681 | return err; |
2682 | } | |
2683 | ||
2684 | static void ixgbe_free_irq(struct ixgbe_adapter *adapter) | |
2685 | { | |
49c7ffbe | 2686 | int vector; |
9a799d71 | 2687 | |
49c7ffbe AD |
2688 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) { |
2689 | free_irq(adapter->pdev->irq, adapter); | |
2690 | return; | |
2691 | } | |
4cc6df29 | 2692 | |
49c7ffbe AD |
2693 | for (vector = 0; vector < adapter->num_q_vectors; vector++) { |
2694 | struct ixgbe_q_vector *q_vector = adapter->q_vector[vector]; | |
2695 | struct msix_entry *entry = &adapter->msix_entries[vector]; | |
894ff7cf | 2696 | |
49c7ffbe AD |
2697 | /* free only the irqs that were actually requested */ |
2698 | if (!q_vector->rx.ring && !q_vector->tx.ring) | |
2699 | continue; | |
207867f5 | 2700 | |
49c7ffbe AD |
2701 | /* clear the affinity_mask in the IRQ descriptor */ |
2702 | irq_set_affinity_hint(entry->vector, NULL); | |
2703 | ||
2704 | free_irq(entry->vector, q_vector); | |
9a799d71 | 2705 | } |
49c7ffbe AD |
2706 | |
2707 | free_irq(adapter->msix_entries[vector++].vector, adapter); | |
9a799d71 AK |
2708 | } |
2709 | ||
22d5a71b JB |
2710 | /** |
2711 | * ixgbe_irq_disable - Mask off interrupt generation on the NIC | |
2712 | * @adapter: board private structure | |
2713 | **/ | |
2714 | static inline void ixgbe_irq_disable(struct ixgbe_adapter *adapter) | |
2715 | { | |
bd508178 AD |
2716 | switch (adapter->hw.mac.type) { |
2717 | case ixgbe_mac_82598EB: | |
835462fc | 2718 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, ~0); |
bd508178 AD |
2719 | break; |
2720 | case ixgbe_mac_82599EB: | |
b93a2226 | 2721 | case ixgbe_mac_X540: |
835462fc NS |
2722 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, 0xFFFF0000); |
2723 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(0), ~0); | |
22d5a71b | 2724 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(1), ~0); |
bd508178 AD |
2725 | break; |
2726 | default: | |
2727 | break; | |
22d5a71b JB |
2728 | } |
2729 | IXGBE_WRITE_FLUSH(&adapter->hw); | |
2730 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { | |
49c7ffbe AD |
2731 | int vector; |
2732 | ||
2733 | for (vector = 0; vector < adapter->num_q_vectors; vector++) | |
2734 | synchronize_irq(adapter->msix_entries[vector].vector); | |
2735 | ||
2736 | synchronize_irq(adapter->msix_entries[vector++].vector); | |
22d5a71b JB |
2737 | } else { |
2738 | synchronize_irq(adapter->pdev->irq); | |
2739 | } | |
2740 | } | |
2741 | ||
9a799d71 AK |
2742 | /** |
2743 | * ixgbe_configure_msi_and_legacy - Initialize PIN (INTA...) and MSI interrupts | |
2744 | * | |
2745 | **/ | |
2746 | static void ixgbe_configure_msi_and_legacy(struct ixgbe_adapter *adapter) | |
2747 | { | |
d5bf4f67 | 2748 | struct ixgbe_q_vector *q_vector = adapter->q_vector[0]; |
9a799d71 | 2749 | |
d5bf4f67 | 2750 | ixgbe_write_eitr(q_vector); |
9a799d71 | 2751 | |
e8e26350 PW |
2752 | ixgbe_set_ivar(adapter, 0, 0, 0); |
2753 | ixgbe_set_ivar(adapter, 1, 0, 0); | |
021230d4 | 2754 | |
396e799c | 2755 | e_info(hw, "Legacy interrupt IVAR setup done\n"); |
9a799d71 AK |
2756 | } |
2757 | ||
43e69bf0 AD |
2758 | /** |
2759 | * ixgbe_configure_tx_ring - Configure 8259x Tx ring after Reset | |
2760 | * @adapter: board private structure | |
2761 | * @ring: structure containing ring specific data | |
2762 | * | |
2763 | * Configure the Tx descriptor ring after a reset. | |
2764 | **/ | |
84418e3b AD |
2765 | void ixgbe_configure_tx_ring(struct ixgbe_adapter *adapter, |
2766 | struct ixgbe_ring *ring) | |
43e69bf0 AD |
2767 | { |
2768 | struct ixgbe_hw *hw = &adapter->hw; | |
2769 | u64 tdba = ring->dma; | |
2f1860b8 | 2770 | int wait_loop = 10; |
b88c6de2 | 2771 | u32 txdctl = IXGBE_TXDCTL_ENABLE; |
bf29ee6c | 2772 | u8 reg_idx = ring->reg_idx; |
43e69bf0 | 2773 | |
2f1860b8 | 2774 | /* disable queue to avoid issues while updating state */ |
b88c6de2 | 2775 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), 0); |
2f1860b8 AD |
2776 | IXGBE_WRITE_FLUSH(hw); |
2777 | ||
43e69bf0 | 2778 | IXGBE_WRITE_REG(hw, IXGBE_TDBAL(reg_idx), |
e8e9f696 | 2779 | (tdba & DMA_BIT_MASK(32))); |
43e69bf0 AD |
2780 | IXGBE_WRITE_REG(hw, IXGBE_TDBAH(reg_idx), (tdba >> 32)); |
2781 | IXGBE_WRITE_REG(hw, IXGBE_TDLEN(reg_idx), | |
2782 | ring->count * sizeof(union ixgbe_adv_tx_desc)); | |
2783 | IXGBE_WRITE_REG(hw, IXGBE_TDH(reg_idx), 0); | |
2784 | IXGBE_WRITE_REG(hw, IXGBE_TDT(reg_idx), 0); | |
84ea2591 | 2785 | ring->tail = hw->hw_addr + IXGBE_TDT(reg_idx); |
43e69bf0 | 2786 | |
b88c6de2 AD |
2787 | /* |
2788 | * set WTHRESH to encourage burst writeback, it should not be set | |
2789 | * higher than 1 when ITR is 0 as it could cause false TX hangs | |
2790 | * | |
2791 | * In order to avoid issues WTHRESH + PTHRESH should always be equal | |
2792 | * to or less than the number of on chip descriptors, which is | |
2793 | * currently 40. | |
2794 | */ | |
e954b374 | 2795 | if (!ring->q_vector || (ring->q_vector->itr < 8)) |
b88c6de2 AD |
2796 | txdctl |= (1 << 16); /* WTHRESH = 1 */ |
2797 | else | |
2798 | txdctl |= (8 << 16); /* WTHRESH = 8 */ | |
2799 | ||
e954b374 AD |
2800 | /* |
2801 | * Setting PTHRESH to 32 both improves performance | |
2802 | * and avoids a TX hang with DFP enabled | |
2803 | */ | |
b88c6de2 AD |
2804 | txdctl |= (1 << 8) | /* HTHRESH = 1 */ |
2805 | 32; /* PTHRESH = 32 */ | |
2f1860b8 AD |
2806 | |
2807 | /* reinitialize flowdirector state */ | |
39cb681b | 2808 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { |
ee9e0f0b AD |
2809 | ring->atr_sample_rate = adapter->atr_sample_rate; |
2810 | ring->atr_count = 0; | |
2811 | set_bit(__IXGBE_TX_FDIR_INIT_DONE, &ring->state); | |
2812 | } else { | |
2813 | ring->atr_sample_rate = 0; | |
2814 | } | |
2f1860b8 | 2815 | |
c84d324c JF |
2816 | clear_bit(__IXGBE_HANG_CHECK_ARMED, &ring->state); |
2817 | ||
2f1860b8 | 2818 | /* enable queue */ |
2f1860b8 AD |
2819 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), txdctl); |
2820 | ||
2821 | /* TXDCTL.EN will return 0 on 82598 if link is down, so skip it */ | |
2822 | if (hw->mac.type == ixgbe_mac_82598EB && | |
2823 | !(IXGBE_READ_REG(hw, IXGBE_LINKS) & IXGBE_LINKS_UP)) | |
2824 | return; | |
2825 | ||
2826 | /* poll to verify queue is enabled */ | |
2827 | do { | |
032b4325 | 2828 | usleep_range(1000, 2000); |
2f1860b8 AD |
2829 | txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(reg_idx)); |
2830 | } while (--wait_loop && !(txdctl & IXGBE_TXDCTL_ENABLE)); | |
2831 | if (!wait_loop) | |
2832 | e_err(drv, "Could not enable Tx Queue %d\n", reg_idx); | |
43e69bf0 AD |
2833 | } |
2834 | ||
120ff942 AD |
2835 | static void ixgbe_setup_mtqc(struct ixgbe_adapter *adapter) |
2836 | { | |
2837 | struct ixgbe_hw *hw = &adapter->hw; | |
671c0adb | 2838 | u32 rttdcs, mtqc; |
8b1c0b24 | 2839 | u8 tcs = netdev_get_num_tc(adapter->netdev); |
120ff942 AD |
2840 | |
2841 | if (hw->mac.type == ixgbe_mac_82598EB) | |
2842 | return; | |
2843 | ||
2844 | /* disable the arbiter while setting MTQC */ | |
2845 | rttdcs = IXGBE_READ_REG(hw, IXGBE_RTTDCS); | |
2846 | rttdcs |= IXGBE_RTTDCS_ARBDIS; | |
2847 | IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, rttdcs); | |
2848 | ||
2849 | /* set transmit pool layout */ | |
671c0adb AD |
2850 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { |
2851 | mtqc = IXGBE_MTQC_VT_ENA; | |
2852 | if (tcs > 4) | |
2853 | mtqc |= IXGBE_MTQC_RT_ENA | IXGBE_MTQC_8TC_8TQ; | |
2854 | else if (tcs > 1) | |
2855 | mtqc |= IXGBE_MTQC_RT_ENA | IXGBE_MTQC_4TC_4TQ; | |
2856 | else if (adapter->ring_feature[RING_F_RSS].indices == 4) | |
2857 | mtqc |= IXGBE_MTQC_32VF; | |
2858 | else | |
2859 | mtqc |= IXGBE_MTQC_64VF; | |
2860 | } else { | |
2861 | if (tcs > 4) | |
2862 | mtqc = IXGBE_MTQC_RT_ENA | IXGBE_MTQC_8TC_8TQ; | |
2863 | else if (tcs > 1) | |
2864 | mtqc = IXGBE_MTQC_RT_ENA | IXGBE_MTQC_4TC_4TQ; | |
8b1c0b24 | 2865 | else |
671c0adb AD |
2866 | mtqc = IXGBE_MTQC_64Q_1PB; |
2867 | } | |
120ff942 | 2868 | |
671c0adb | 2869 | IXGBE_WRITE_REG(hw, IXGBE_MTQC, mtqc); |
120ff942 | 2870 | |
671c0adb AD |
2871 | /* Enable Security TX Buffer IFG for multiple pb */ |
2872 | if (tcs) { | |
2873 | u32 sectx = IXGBE_READ_REG(hw, IXGBE_SECTXMINIFG); | |
2874 | sectx |= IXGBE_SECTX_DCB; | |
2875 | IXGBE_WRITE_REG(hw, IXGBE_SECTXMINIFG, sectx); | |
120ff942 AD |
2876 | } |
2877 | ||
2878 | /* re-enable the arbiter */ | |
2879 | rttdcs &= ~IXGBE_RTTDCS_ARBDIS; | |
2880 | IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, rttdcs); | |
2881 | } | |
2882 | ||
9a799d71 | 2883 | /** |
3a581073 | 2884 | * ixgbe_configure_tx - Configure 8259x Transmit Unit after Reset |
9a799d71 AK |
2885 | * @adapter: board private structure |
2886 | * | |
2887 | * Configure the Tx unit of the MAC after a reset. | |
2888 | **/ | |
2889 | static void ixgbe_configure_tx(struct ixgbe_adapter *adapter) | |
2890 | { | |
2f1860b8 AD |
2891 | struct ixgbe_hw *hw = &adapter->hw; |
2892 | u32 dmatxctl; | |
43e69bf0 | 2893 | u32 i; |
9a799d71 | 2894 | |
2f1860b8 AD |
2895 | ixgbe_setup_mtqc(adapter); |
2896 | ||
2897 | if (hw->mac.type != ixgbe_mac_82598EB) { | |
2898 | /* DMATXCTL.EN must be before Tx queues are enabled */ | |
2899 | dmatxctl = IXGBE_READ_REG(hw, IXGBE_DMATXCTL); | |
2900 | dmatxctl |= IXGBE_DMATXCTL_TE; | |
2901 | IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL, dmatxctl); | |
2902 | } | |
2903 | ||
9a799d71 | 2904 | /* Setup the HW Tx Head and Tail descriptor pointers */ |
43e69bf0 AD |
2905 | for (i = 0; i < adapter->num_tx_queues; i++) |
2906 | ixgbe_configure_tx_ring(adapter, adapter->tx_ring[i]); | |
9a799d71 AK |
2907 | } |
2908 | ||
3ebe8fde AD |
2909 | static void ixgbe_enable_rx_drop(struct ixgbe_adapter *adapter, |
2910 | struct ixgbe_ring *ring) | |
2911 | { | |
2912 | struct ixgbe_hw *hw = &adapter->hw; | |
2913 | u8 reg_idx = ring->reg_idx; | |
2914 | u32 srrctl = IXGBE_READ_REG(hw, IXGBE_SRRCTL(reg_idx)); | |
2915 | ||
2916 | srrctl |= IXGBE_SRRCTL_DROP_EN; | |
2917 | ||
2918 | IXGBE_WRITE_REG(hw, IXGBE_SRRCTL(reg_idx), srrctl); | |
2919 | } | |
2920 | ||
2921 | static void ixgbe_disable_rx_drop(struct ixgbe_adapter *adapter, | |
2922 | struct ixgbe_ring *ring) | |
2923 | { | |
2924 | struct ixgbe_hw *hw = &adapter->hw; | |
2925 | u8 reg_idx = ring->reg_idx; | |
2926 | u32 srrctl = IXGBE_READ_REG(hw, IXGBE_SRRCTL(reg_idx)); | |
2927 | ||
2928 | srrctl &= ~IXGBE_SRRCTL_DROP_EN; | |
2929 | ||
2930 | IXGBE_WRITE_REG(hw, IXGBE_SRRCTL(reg_idx), srrctl); | |
2931 | } | |
2932 | ||
2933 | #ifdef CONFIG_IXGBE_DCB | |
2934 | void ixgbe_set_rx_drop_en(struct ixgbe_adapter *adapter) | |
2935 | #else | |
2936 | static void ixgbe_set_rx_drop_en(struct ixgbe_adapter *adapter) | |
2937 | #endif | |
2938 | { | |
2939 | int i; | |
2940 | bool pfc_en = adapter->dcb_cfg.pfc_mode_enable; | |
2941 | ||
2942 | if (adapter->ixgbe_ieee_pfc) | |
2943 | pfc_en |= !!(adapter->ixgbe_ieee_pfc->pfc_en); | |
2944 | ||
2945 | /* | |
2946 | * We should set the drop enable bit if: | |
2947 | * SR-IOV is enabled | |
2948 | * or | |
2949 | * Number of Rx queues > 1 and flow control is disabled | |
2950 | * | |
2951 | * This allows us to avoid head of line blocking for security | |
2952 | * and performance reasons. | |
2953 | */ | |
2954 | if (adapter->num_vfs || (adapter->num_rx_queues > 1 && | |
2955 | !(adapter->hw.fc.current_mode & ixgbe_fc_tx_pause) && !pfc_en)) { | |
2956 | for (i = 0; i < adapter->num_rx_queues; i++) | |
2957 | ixgbe_enable_rx_drop(adapter, adapter->rx_ring[i]); | |
2958 | } else { | |
2959 | for (i = 0; i < adapter->num_rx_queues; i++) | |
2960 | ixgbe_disable_rx_drop(adapter, adapter->rx_ring[i]); | |
2961 | } | |
2962 | } | |
2963 | ||
e8e26350 | 2964 | #define IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT 2 |
cc41ac7c | 2965 | |
a6616b42 | 2966 | static void ixgbe_configure_srrctl(struct ixgbe_adapter *adapter, |
e8e9f696 | 2967 | struct ixgbe_ring *rx_ring) |
cc41ac7c | 2968 | { |
45e9baa5 | 2969 | struct ixgbe_hw *hw = &adapter->hw; |
cc41ac7c | 2970 | u32 srrctl; |
bf29ee6c | 2971 | u8 reg_idx = rx_ring->reg_idx; |
3be1adfb | 2972 | |
45e9baa5 AD |
2973 | if (hw->mac.type == ixgbe_mac_82598EB) { |
2974 | u16 mask = adapter->ring_feature[RING_F_RSS].mask; | |
cc41ac7c | 2975 | |
45e9baa5 AD |
2976 | /* |
2977 | * if VMDq is not active we must program one srrctl register | |
2978 | * per RSS queue since we have enabled RDRXCTL.MVMEN | |
2979 | */ | |
2980 | reg_idx &= mask; | |
2981 | } | |
cc41ac7c | 2982 | |
45e9baa5 AD |
2983 | /* configure header buffer length, needed for RSC */ |
2984 | srrctl = IXGBE_RX_HDR_SIZE << IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT; | |
afafd5b0 | 2985 | |
45e9baa5 | 2986 | /* configure the packet buffer length */ |
f800326d | 2987 | srrctl |= ixgbe_rx_bufsz(rx_ring) >> IXGBE_SRRCTL_BSIZEPKT_SHIFT; |
45e9baa5 AD |
2988 | |
2989 | /* configure descriptor type */ | |
f800326d | 2990 | srrctl |= IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF; |
e8e26350 | 2991 | |
45e9baa5 | 2992 | IXGBE_WRITE_REG(hw, IXGBE_SRRCTL(reg_idx), srrctl); |
cc41ac7c | 2993 | } |
9a799d71 | 2994 | |
05abb126 | 2995 | static void ixgbe_setup_mrqc(struct ixgbe_adapter *adapter) |
0cefafad | 2996 | { |
05abb126 AD |
2997 | struct ixgbe_hw *hw = &adapter->hw; |
2998 | static const u32 seed[10] = { 0xE291D73D, 0x1805EC6C, 0x2A94B30D, | |
e8e9f696 JP |
2999 | 0xA54F2BEC, 0xEA49AF7C, 0xE214AD3D, 0xB855AABE, |
3000 | 0x6A3E67EA, 0x14364D17, 0x3BED200D}; | |
05abb126 AD |
3001 | u32 mrqc = 0, reta = 0; |
3002 | u32 rxcsum; | |
3003 | int i, j; | |
671c0adb AD |
3004 | u16 rss_i = adapter->ring_feature[RING_F_RSS].indices; |
3005 | ||
671c0adb AD |
3006 | /* |
3007 | * Program table for at least 2 queues w/ SR-IOV so that VFs can | |
3008 | * make full use of any rings they may have. We will use the | |
3009 | * PSRTYPE register to control how many rings we use within the PF. | |
3010 | */ | |
3011 | if ((adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) && (rss_i < 2)) | |
3012 | rss_i = 2; | |
0cefafad | 3013 | |
05abb126 AD |
3014 | /* Fill out hash function seeds */ |
3015 | for (i = 0; i < 10; i++) | |
3016 | IXGBE_WRITE_REG(hw, IXGBE_RSSRK(i), seed[i]); | |
3017 | ||
3018 | /* Fill out redirection table */ | |
3019 | for (i = 0, j = 0; i < 128; i++, j++) { | |
671c0adb | 3020 | if (j == rss_i) |
05abb126 AD |
3021 | j = 0; |
3022 | /* reta = 4-byte sliding window of | |
3023 | * 0x00..(indices-1)(indices-1)00..etc. */ | |
3024 | reta = (reta << 8) | (j * 0x11); | |
3025 | if ((i & 3) == 3) | |
3026 | IXGBE_WRITE_REG(hw, IXGBE_RETA(i >> 2), reta); | |
3027 | } | |
0cefafad | 3028 | |
05abb126 AD |
3029 | /* Disable indicating checksum in descriptor, enables RSS hash */ |
3030 | rxcsum = IXGBE_READ_REG(hw, IXGBE_RXCSUM); | |
3031 | rxcsum |= IXGBE_RXCSUM_PCSD; | |
3032 | IXGBE_WRITE_REG(hw, IXGBE_RXCSUM, rxcsum); | |
3033 | ||
671c0adb | 3034 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
fbe7ca7f | 3035 | if (adapter->ring_feature[RING_F_RSS].mask) |
671c0adb | 3036 | mrqc = IXGBE_MRQC_RSSEN; |
8b1c0b24 | 3037 | } else { |
671c0adb AD |
3038 | u8 tcs = netdev_get_num_tc(adapter->netdev); |
3039 | ||
3040 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { | |
3041 | if (tcs > 4) | |
3042 | mrqc = IXGBE_MRQC_VMDQRT8TCEN; /* 8 TCs */ | |
3043 | else if (tcs > 1) | |
3044 | mrqc = IXGBE_MRQC_VMDQRT4TCEN; /* 4 TCs */ | |
3045 | else if (adapter->ring_feature[RING_F_RSS].indices == 4) | |
3046 | mrqc = IXGBE_MRQC_VMDQRSS32EN; | |
8b1c0b24 | 3047 | else |
671c0adb AD |
3048 | mrqc = IXGBE_MRQC_VMDQRSS64EN; |
3049 | } else { | |
3050 | if (tcs > 4) | |
8b1c0b24 | 3051 | mrqc = IXGBE_MRQC_RTRSS8TCEN; |
671c0adb AD |
3052 | else if (tcs > 1) |
3053 | mrqc = IXGBE_MRQC_RTRSS4TCEN; | |
3054 | else | |
3055 | mrqc = IXGBE_MRQC_RSSEN; | |
8b1c0b24 | 3056 | } |
0cefafad JB |
3057 | } |
3058 | ||
05abb126 | 3059 | /* Perform hash on these packet types */ |
671c0adb AD |
3060 | mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4 | |
3061 | IXGBE_MRQC_RSS_FIELD_IPV4_TCP | | |
3062 | IXGBE_MRQC_RSS_FIELD_IPV6 | | |
3063 | IXGBE_MRQC_RSS_FIELD_IPV6_TCP; | |
05abb126 | 3064 | |
ef6afc0c AD |
3065 | if (adapter->flags2 & IXGBE_FLAG2_RSS_FIELD_IPV4_UDP) |
3066 | mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4_UDP; | |
3067 | if (adapter->flags2 & IXGBE_FLAG2_RSS_FIELD_IPV6_UDP) | |
3068 | mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_UDP; | |
3069 | ||
05abb126 | 3070 | IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc); |
0cefafad JB |
3071 | } |
3072 | ||
bb5a9ad2 NS |
3073 | /** |
3074 | * ixgbe_configure_rscctl - enable RSC for the indicated ring | |
3075 | * @adapter: address of board private structure | |
3076 | * @index: index of ring to set | |
bb5a9ad2 | 3077 | **/ |
082757af | 3078 | static void ixgbe_configure_rscctl(struct ixgbe_adapter *adapter, |
7367096a | 3079 | struct ixgbe_ring *ring) |
bb5a9ad2 | 3080 | { |
bb5a9ad2 | 3081 | struct ixgbe_hw *hw = &adapter->hw; |
bb5a9ad2 | 3082 | u32 rscctrl; |
bf29ee6c | 3083 | u8 reg_idx = ring->reg_idx; |
7367096a | 3084 | |
7d637bcc | 3085 | if (!ring_is_rsc_enabled(ring)) |
7367096a | 3086 | return; |
bb5a9ad2 | 3087 | |
7367096a | 3088 | rscctrl = IXGBE_READ_REG(hw, IXGBE_RSCCTL(reg_idx)); |
bb5a9ad2 NS |
3089 | rscctrl |= IXGBE_RSCCTL_RSCEN; |
3090 | /* | |
3091 | * we must limit the number of descriptors so that the | |
3092 | * total size of max desc * buf_len is not greater | |
642c680e | 3093 | * than 65536 |
bb5a9ad2 | 3094 | */ |
f800326d | 3095 | rscctrl |= IXGBE_RSCCTL_MAXDESC_16; |
7367096a | 3096 | IXGBE_WRITE_REG(hw, IXGBE_RSCCTL(reg_idx), rscctrl); |
bb5a9ad2 NS |
3097 | } |
3098 | ||
9e10e045 AD |
3099 | #define IXGBE_MAX_RX_DESC_POLL 10 |
3100 | static void ixgbe_rx_desc_queue_enable(struct ixgbe_adapter *adapter, | |
3101 | struct ixgbe_ring *ring) | |
3102 | { | |
3103 | struct ixgbe_hw *hw = &adapter->hw; | |
9e10e045 AD |
3104 | int wait_loop = IXGBE_MAX_RX_DESC_POLL; |
3105 | u32 rxdctl; | |
bf29ee6c | 3106 | u8 reg_idx = ring->reg_idx; |
9e10e045 AD |
3107 | |
3108 | /* RXDCTL.EN will return 0 on 82598 if link is down, so skip it */ | |
3109 | if (hw->mac.type == ixgbe_mac_82598EB && | |
3110 | !(IXGBE_READ_REG(hw, IXGBE_LINKS) & IXGBE_LINKS_UP)) | |
3111 | return; | |
3112 | ||
3113 | do { | |
032b4325 | 3114 | usleep_range(1000, 2000); |
9e10e045 AD |
3115 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); |
3116 | } while (--wait_loop && !(rxdctl & IXGBE_RXDCTL_ENABLE)); | |
3117 | ||
3118 | if (!wait_loop) { | |
3119 | e_err(drv, "RXDCTL.ENABLE on Rx queue %d not set within " | |
3120 | "the polling period\n", reg_idx); | |
3121 | } | |
3122 | } | |
3123 | ||
2d39d576 YZ |
3124 | void ixgbe_disable_rx_queue(struct ixgbe_adapter *adapter, |
3125 | struct ixgbe_ring *ring) | |
3126 | { | |
3127 | struct ixgbe_hw *hw = &adapter->hw; | |
3128 | int wait_loop = IXGBE_MAX_RX_DESC_POLL; | |
3129 | u32 rxdctl; | |
3130 | u8 reg_idx = ring->reg_idx; | |
3131 | ||
3132 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); | |
3133 | rxdctl &= ~IXGBE_RXDCTL_ENABLE; | |
3134 | ||
3135 | /* write value back with RXDCTL.ENABLE bit cleared */ | |
3136 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(reg_idx), rxdctl); | |
3137 | ||
3138 | if (hw->mac.type == ixgbe_mac_82598EB && | |
3139 | !(IXGBE_READ_REG(hw, IXGBE_LINKS) & IXGBE_LINKS_UP)) | |
3140 | return; | |
3141 | ||
3142 | /* the hardware may take up to 100us to really disable the rx queue */ | |
3143 | do { | |
3144 | udelay(10); | |
3145 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); | |
3146 | } while (--wait_loop && (rxdctl & IXGBE_RXDCTL_ENABLE)); | |
3147 | ||
3148 | if (!wait_loop) { | |
3149 | e_err(drv, "RXDCTL.ENABLE on Rx queue %d not cleared within " | |
3150 | "the polling period\n", reg_idx); | |
3151 | } | |
3152 | } | |
3153 | ||
84418e3b AD |
3154 | void ixgbe_configure_rx_ring(struct ixgbe_adapter *adapter, |
3155 | struct ixgbe_ring *ring) | |
acd37177 AD |
3156 | { |
3157 | struct ixgbe_hw *hw = &adapter->hw; | |
3158 | u64 rdba = ring->dma; | |
9e10e045 | 3159 | u32 rxdctl; |
bf29ee6c | 3160 | u8 reg_idx = ring->reg_idx; |
acd37177 | 3161 | |
9e10e045 AD |
3162 | /* disable queue to avoid issues while updating state */ |
3163 | rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(reg_idx)); | |
2d39d576 | 3164 | ixgbe_disable_rx_queue(adapter, ring); |
9e10e045 | 3165 | |
acd37177 AD |
3166 | IXGBE_WRITE_REG(hw, IXGBE_RDBAL(reg_idx), (rdba & DMA_BIT_MASK(32))); |
3167 | IXGBE_WRITE_REG(hw, IXGBE_RDBAH(reg_idx), (rdba >> 32)); | |
3168 | IXGBE_WRITE_REG(hw, IXGBE_RDLEN(reg_idx), | |
3169 | ring->count * sizeof(union ixgbe_adv_rx_desc)); | |
3170 | IXGBE_WRITE_REG(hw, IXGBE_RDH(reg_idx), 0); | |
3171 | IXGBE_WRITE_REG(hw, IXGBE_RDT(reg_idx), 0); | |
84ea2591 | 3172 | ring->tail = hw->hw_addr + IXGBE_RDT(reg_idx); |
9e10e045 AD |
3173 | |
3174 | ixgbe_configure_srrctl(adapter, ring); | |
3175 | ixgbe_configure_rscctl(adapter, ring); | |
3176 | ||
3177 | if (hw->mac.type == ixgbe_mac_82598EB) { | |
3178 | /* | |
3179 | * enable cache line friendly hardware writes: | |
3180 | * PTHRESH=32 descriptors (half the internal cache), | |
3181 | * this also removes ugly rx_no_buffer_count increment | |
3182 | * HTHRESH=4 descriptors (to minimize latency on fetch) | |
3183 | * WTHRESH=8 burst writeback up to two cache lines | |
3184 | */ | |
3185 | rxdctl &= ~0x3FFFFF; | |
3186 | rxdctl |= 0x080420; | |
3187 | } | |
3188 | ||
3189 | /* enable receive descriptor ring */ | |
3190 | rxdctl |= IXGBE_RXDCTL_ENABLE; | |
3191 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(reg_idx), rxdctl); | |
3192 | ||
3193 | ixgbe_rx_desc_queue_enable(adapter, ring); | |
7d4987de | 3194 | ixgbe_alloc_rx_buffers(ring, ixgbe_desc_unused(ring)); |
acd37177 AD |
3195 | } |
3196 | ||
48654521 AD |
3197 | static void ixgbe_setup_psrtype(struct ixgbe_adapter *adapter) |
3198 | { | |
3199 | struct ixgbe_hw *hw = &adapter->hw; | |
fbe7ca7f | 3200 | int rss_i = adapter->ring_feature[RING_F_RSS].indices; |
48654521 AD |
3201 | int p; |
3202 | ||
3203 | /* PSRTYPE must be initialized in non 82598 adapters */ | |
3204 | u32 psrtype = IXGBE_PSRTYPE_TCPHDR | | |
e8e9f696 JP |
3205 | IXGBE_PSRTYPE_UDPHDR | |
3206 | IXGBE_PSRTYPE_IPV4HDR | | |
48654521 | 3207 | IXGBE_PSRTYPE_L2HDR | |
e8e9f696 | 3208 | IXGBE_PSRTYPE_IPV6HDR; |
48654521 AD |
3209 | |
3210 | if (hw->mac.type == ixgbe_mac_82598EB) | |
3211 | return; | |
3212 | ||
fbe7ca7f AD |
3213 | if (rss_i > 3) |
3214 | psrtype |= 2 << 29; | |
3215 | else if (rss_i > 1) | |
3216 | psrtype |= 1 << 29; | |
48654521 AD |
3217 | |
3218 | for (p = 0; p < adapter->num_rx_pools; p++) | |
1d9c0bfd | 3219 | IXGBE_WRITE_REG(hw, IXGBE_PSRTYPE(VMDQ_P(p)), |
48654521 AD |
3220 | psrtype); |
3221 | } | |
3222 | ||
f5b4a52e AD |
3223 | static void ixgbe_configure_virtualization(struct ixgbe_adapter *adapter) |
3224 | { | |
3225 | struct ixgbe_hw *hw = &adapter->hw; | |
f5b4a52e | 3226 | u32 reg_offset, vf_shift; |
435b19f6 | 3227 | u32 gcr_ext, vmdctl; |
de4c7f65 | 3228 | int i; |
f5b4a52e AD |
3229 | |
3230 | if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) | |
3231 | return; | |
3232 | ||
3233 | vmdctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL); | |
435b19f6 AD |
3234 | vmdctl |= IXGBE_VMD_CTL_VMDQ_EN; |
3235 | vmdctl &= ~IXGBE_VT_CTL_POOL_MASK; | |
1d9c0bfd | 3236 | vmdctl |= VMDQ_P(0) << IXGBE_VT_CTL_POOL_SHIFT; |
435b19f6 AD |
3237 | vmdctl |= IXGBE_VT_CTL_REPLEN; |
3238 | IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vmdctl); | |
f5b4a52e | 3239 | |
1d9c0bfd AD |
3240 | vf_shift = VMDQ_P(0) % 32; |
3241 | reg_offset = (VMDQ_P(0) >= 32) ? 1 : 0; | |
f5b4a52e AD |
3242 | |
3243 | /* Enable only the PF's pool for Tx/Rx */ | |
435b19f6 AD |
3244 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), (~0) << vf_shift); |
3245 | IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset ^ 1), reg_offset - 1); | |
3246 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), (~0) << vf_shift); | |
3247 | IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset ^ 1), reg_offset - 1); | |
9b735984 GR |
3248 | if (adapter->flags2 & IXGBE_FLAG2_BRIDGE_MODE_VEB) |
3249 | IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN); | |
f5b4a52e AD |
3250 | |
3251 | /* Map PF MAC address in RAR Entry 0 to first pool following VFs */ | |
1d9c0bfd | 3252 | hw->mac.ops.set_vmdq(hw, 0, VMDQ_P(0)); |
f5b4a52e AD |
3253 | |
3254 | /* | |
3255 | * Set up VF register offsets for selected VT Mode, | |
3256 | * i.e. 32 or 64 VFs for SR-IOV | |
3257 | */ | |
73079ea0 AD |
3258 | switch (adapter->ring_feature[RING_F_VMDQ].mask) { |
3259 | case IXGBE_82599_VMDQ_8Q_MASK: | |
3260 | gcr_ext = IXGBE_GCR_EXT_VT_MODE_16; | |
3261 | break; | |
3262 | case IXGBE_82599_VMDQ_4Q_MASK: | |
3263 | gcr_ext = IXGBE_GCR_EXT_VT_MODE_32; | |
3264 | break; | |
3265 | default: | |
3266 | gcr_ext = IXGBE_GCR_EXT_VT_MODE_64; | |
3267 | break; | |
3268 | } | |
3269 | ||
f5b4a52e AD |
3270 | IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr_ext); |
3271 | ||
435b19f6 | 3272 | |
a985b6c3 | 3273 | /* Enable MAC Anti-Spoofing */ |
435b19f6 | 3274 | hw->mac.ops.set_mac_anti_spoofing(hw, (adapter->num_vfs != 0), |
a985b6c3 | 3275 | adapter->num_vfs); |
de4c7f65 GR |
3276 | /* For VFs that have spoof checking turned off */ |
3277 | for (i = 0; i < adapter->num_vfs; i++) { | |
3278 | if (!adapter->vfinfo[i].spoofchk_enabled) | |
3279 | ixgbe_ndo_set_vf_spoofchk(adapter->netdev, i, false); | |
3280 | } | |
f5b4a52e AD |
3281 | } |
3282 | ||
477de6ed | 3283 | static void ixgbe_set_rx_buffer_len(struct ixgbe_adapter *adapter) |
9a799d71 | 3284 | { |
9a799d71 AK |
3285 | struct ixgbe_hw *hw = &adapter->hw; |
3286 | struct net_device *netdev = adapter->netdev; | |
3287 | int max_frame = netdev->mtu + ETH_HLEN + ETH_FCS_LEN; | |
477de6ed AD |
3288 | struct ixgbe_ring *rx_ring; |
3289 | int i; | |
3290 | u32 mhadd, hlreg0; | |
48654521 | 3291 | |
63f39bd1 | 3292 | #ifdef IXGBE_FCOE |
477de6ed AD |
3293 | /* adjust max frame to be able to do baby jumbo for FCoE */ |
3294 | if ((adapter->flags & IXGBE_FLAG_FCOE_ENABLED) && | |
3295 | (max_frame < IXGBE_FCOE_JUMBO_FRAME_SIZE)) | |
3296 | max_frame = IXGBE_FCOE_JUMBO_FRAME_SIZE; | |
9a799d71 | 3297 | |
477de6ed | 3298 | #endif /* IXGBE_FCOE */ |
872844dd AD |
3299 | |
3300 | /* adjust max frame to be at least the size of a standard frame */ | |
3301 | if (max_frame < (ETH_FRAME_LEN + ETH_FCS_LEN)) | |
3302 | max_frame = (ETH_FRAME_LEN + ETH_FCS_LEN); | |
3303 | ||
477de6ed AD |
3304 | mhadd = IXGBE_READ_REG(hw, IXGBE_MHADD); |
3305 | if (max_frame != (mhadd >> IXGBE_MHADD_MFS_SHIFT)) { | |
3306 | mhadd &= ~IXGBE_MHADD_MFS_MASK; | |
3307 | mhadd |= max_frame << IXGBE_MHADD_MFS_SHIFT; | |
3308 | ||
3309 | IXGBE_WRITE_REG(hw, IXGBE_MHADD, mhadd); | |
3310 | } | |
3311 | ||
3312 | hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0); | |
3313 | /* set jumbo enable since MHADD.MFS is keeping size locked at max_frame */ | |
3314 | hlreg0 |= IXGBE_HLREG0_JUMBOEN; | |
3315 | IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0); | |
9a799d71 | 3316 | |
0cefafad JB |
3317 | /* |
3318 | * Setup the HW Rx Head and Tail Descriptor Pointers and | |
3319 | * the Base and Length of the Rx Descriptor Ring | |
3320 | */ | |
9a799d71 | 3321 | for (i = 0; i < adapter->num_rx_queues; i++) { |
4a0b9ca0 | 3322 | rx_ring = adapter->rx_ring[i]; |
7d637bcc AD |
3323 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) |
3324 | set_ring_rsc_enabled(rx_ring); | |
1b3ff02e | 3325 | else |
7d637bcc | 3326 | clear_ring_rsc_enabled(rx_ring); |
477de6ed | 3327 | } |
477de6ed AD |
3328 | } |
3329 | ||
7367096a AD |
3330 | static void ixgbe_setup_rdrxctl(struct ixgbe_adapter *adapter) |
3331 | { | |
3332 | struct ixgbe_hw *hw = &adapter->hw; | |
3333 | u32 rdrxctl = IXGBE_READ_REG(hw, IXGBE_RDRXCTL); | |
3334 | ||
3335 | switch (hw->mac.type) { | |
3336 | case ixgbe_mac_82598EB: | |
3337 | /* | |
3338 | * For VMDq support of different descriptor types or | |
3339 | * buffer sizes through the use of multiple SRRCTL | |
3340 | * registers, RDRXCTL.MVMEN must be set to 1 | |
3341 | * | |
3342 | * also, the manual doesn't mention it clearly but DCA hints | |
3343 | * will only use queue 0's tags unless this bit is set. Side | |
3344 | * effects of setting this bit are only that SRRCTL must be | |
3345 | * fully programmed [0..15] | |
3346 | */ | |
3347 | rdrxctl |= IXGBE_RDRXCTL_MVMEN; | |
3348 | break; | |
3349 | case ixgbe_mac_82599EB: | |
b93a2226 | 3350 | case ixgbe_mac_X540: |
7367096a AD |
3351 | /* Disable RSC for ACK packets */ |
3352 | IXGBE_WRITE_REG(hw, IXGBE_RSCDBU, | |
3353 | (IXGBE_RSCDBU_RSCACKDIS | IXGBE_READ_REG(hw, IXGBE_RSCDBU))); | |
3354 | rdrxctl &= ~IXGBE_RDRXCTL_RSCFRSTSIZE; | |
3355 | /* hardware requires some bits to be set by default */ | |
3356 | rdrxctl |= (IXGBE_RDRXCTL_RSCACKC | IXGBE_RDRXCTL_FCOE_WRFIX); | |
3357 | rdrxctl |= IXGBE_RDRXCTL_CRCSTRIP; | |
3358 | break; | |
3359 | default: | |
3360 | /* We should do nothing since we don't know this hardware */ | |
3361 | return; | |
3362 | } | |
3363 | ||
3364 | IXGBE_WRITE_REG(hw, IXGBE_RDRXCTL, rdrxctl); | |
3365 | } | |
3366 | ||
477de6ed AD |
3367 | /** |
3368 | * ixgbe_configure_rx - Configure 8259x Receive Unit after Reset | |
3369 | * @adapter: board private structure | |
3370 | * | |
3371 | * Configure the Rx unit of the MAC after a reset. | |
3372 | **/ | |
3373 | static void ixgbe_configure_rx(struct ixgbe_adapter *adapter) | |
3374 | { | |
3375 | struct ixgbe_hw *hw = &adapter->hw; | |
477de6ed AD |
3376 | int i; |
3377 | u32 rxctrl; | |
477de6ed AD |
3378 | |
3379 | /* disable receives while setting up the descriptors */ | |
3380 | rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL); | |
3381 | IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl & ~IXGBE_RXCTRL_RXEN); | |
3382 | ||
3383 | ixgbe_setup_psrtype(adapter); | |
7367096a | 3384 | ixgbe_setup_rdrxctl(adapter); |
477de6ed | 3385 | |
9e10e045 | 3386 | /* Program registers for the distribution of queues */ |
f5b4a52e | 3387 | ixgbe_setup_mrqc(adapter); |
f5b4a52e | 3388 | |
477de6ed AD |
3389 | /* set_rx_buffer_len must be called before ring initialization */ |
3390 | ixgbe_set_rx_buffer_len(adapter); | |
3391 | ||
3392 | /* | |
3393 | * Setup the HW Rx Head and Tail Descriptor Pointers and | |
3394 | * the Base and Length of the Rx Descriptor Ring | |
3395 | */ | |
9e10e045 AD |
3396 | for (i = 0; i < adapter->num_rx_queues; i++) |
3397 | ixgbe_configure_rx_ring(adapter, adapter->rx_ring[i]); | |
177db6ff | 3398 | |
9e10e045 AD |
3399 | /* disable drop enable for 82598 parts */ |
3400 | if (hw->mac.type == ixgbe_mac_82598EB) | |
3401 | rxctrl |= IXGBE_RXCTRL_DMBYPS; | |
3402 | ||
3403 | /* enable all receives */ | |
3404 | rxctrl |= IXGBE_RXCTRL_RXEN; | |
3405 | hw->mac.ops.enable_rx_dma(hw, rxctrl); | |
9a799d71 AK |
3406 | } |
3407 | ||
8e586137 | 3408 | static int ixgbe_vlan_rx_add_vid(struct net_device *netdev, u16 vid) |
068c89b0 DS |
3409 | { |
3410 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
3411 | struct ixgbe_hw *hw = &adapter->hw; | |
3412 | ||
3413 | /* add VID to filter table */ | |
1d9c0bfd | 3414 | hw->mac.ops.set_vfta(&adapter->hw, vid, VMDQ_P(0), true); |
f62bbb5e | 3415 | set_bit(vid, adapter->active_vlans); |
8e586137 JP |
3416 | |
3417 | return 0; | |
068c89b0 DS |
3418 | } |
3419 | ||
8e586137 | 3420 | static int ixgbe_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) |
068c89b0 DS |
3421 | { |
3422 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
3423 | struct ixgbe_hw *hw = &adapter->hw; | |
3424 | ||
068c89b0 | 3425 | /* remove VID from filter table */ |
1d9c0bfd | 3426 | hw->mac.ops.set_vfta(&adapter->hw, vid, VMDQ_P(0), false); |
f62bbb5e | 3427 | clear_bit(vid, adapter->active_vlans); |
8e586137 JP |
3428 | |
3429 | return 0; | |
068c89b0 DS |
3430 | } |
3431 | ||
5f6c0181 JB |
3432 | /** |
3433 | * ixgbe_vlan_filter_disable - helper to disable hw vlan filtering | |
3434 | * @adapter: driver data | |
3435 | */ | |
3436 | static void ixgbe_vlan_filter_disable(struct ixgbe_adapter *adapter) | |
3437 | { | |
3438 | struct ixgbe_hw *hw = &adapter->hw; | |
f62bbb5e JG |
3439 | u32 vlnctrl; |
3440 | ||
3441 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); | |
3442 | vlnctrl &= ~(IXGBE_VLNCTRL_VFE | IXGBE_VLNCTRL_CFIEN); | |
3443 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); | |
3444 | } | |
3445 | ||
3446 | /** | |
3447 | * ixgbe_vlan_filter_enable - helper to enable hw vlan filtering | |
3448 | * @adapter: driver data | |
3449 | */ | |
3450 | static void ixgbe_vlan_filter_enable(struct ixgbe_adapter *adapter) | |
3451 | { | |
3452 | struct ixgbe_hw *hw = &adapter->hw; | |
3453 | u32 vlnctrl; | |
3454 | ||
3455 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); | |
3456 | vlnctrl |= IXGBE_VLNCTRL_VFE; | |
3457 | vlnctrl &= ~IXGBE_VLNCTRL_CFIEN; | |
3458 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); | |
3459 | } | |
3460 | ||
3461 | /** | |
3462 | * ixgbe_vlan_strip_disable - helper to disable hw vlan stripping | |
3463 | * @adapter: driver data | |
3464 | */ | |
3465 | static void ixgbe_vlan_strip_disable(struct ixgbe_adapter *adapter) | |
3466 | { | |
3467 | struct ixgbe_hw *hw = &adapter->hw; | |
3468 | u32 vlnctrl; | |
5f6c0181 JB |
3469 | int i, j; |
3470 | ||
3471 | switch (hw->mac.type) { | |
3472 | case ixgbe_mac_82598EB: | |
f62bbb5e JG |
3473 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); |
3474 | vlnctrl &= ~IXGBE_VLNCTRL_VME; | |
5f6c0181 JB |
3475 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); |
3476 | break; | |
3477 | case ixgbe_mac_82599EB: | |
b93a2226 | 3478 | case ixgbe_mac_X540: |
5f6c0181 JB |
3479 | for (i = 0; i < adapter->num_rx_queues; i++) { |
3480 | j = adapter->rx_ring[i]->reg_idx; | |
3481 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(j)); | |
3482 | vlnctrl &= ~IXGBE_RXDCTL_VME; | |
3483 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(j), vlnctrl); | |
3484 | } | |
3485 | break; | |
3486 | default: | |
3487 | break; | |
3488 | } | |
3489 | } | |
3490 | ||
3491 | /** | |
f62bbb5e | 3492 | * ixgbe_vlan_strip_enable - helper to enable hw vlan stripping |
5f6c0181 JB |
3493 | * @adapter: driver data |
3494 | */ | |
f62bbb5e | 3495 | static void ixgbe_vlan_strip_enable(struct ixgbe_adapter *adapter) |
5f6c0181 JB |
3496 | { |
3497 | struct ixgbe_hw *hw = &adapter->hw; | |
f62bbb5e | 3498 | u32 vlnctrl; |
5f6c0181 JB |
3499 | int i, j; |
3500 | ||
3501 | switch (hw->mac.type) { | |
3502 | case ixgbe_mac_82598EB: | |
f62bbb5e JG |
3503 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); |
3504 | vlnctrl |= IXGBE_VLNCTRL_VME; | |
5f6c0181 JB |
3505 | IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); |
3506 | break; | |
3507 | case ixgbe_mac_82599EB: | |
b93a2226 | 3508 | case ixgbe_mac_X540: |
5f6c0181 JB |
3509 | for (i = 0; i < adapter->num_rx_queues; i++) { |
3510 | j = adapter->rx_ring[i]->reg_idx; | |
3511 | vlnctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(j)); | |
3512 | vlnctrl |= IXGBE_RXDCTL_VME; | |
3513 | IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(j), vlnctrl); | |
3514 | } | |
3515 | break; | |
3516 | default: | |
3517 | break; | |
3518 | } | |
3519 | } | |
3520 | ||
9a799d71 AK |
3521 | static void ixgbe_restore_vlan(struct ixgbe_adapter *adapter) |
3522 | { | |
f62bbb5e | 3523 | u16 vid; |
9a799d71 | 3524 | |
f62bbb5e JG |
3525 | ixgbe_vlan_rx_add_vid(adapter->netdev, 0); |
3526 | ||
3527 | for_each_set_bit(vid, adapter->active_vlans, VLAN_N_VID) | |
3528 | ixgbe_vlan_rx_add_vid(adapter->netdev, vid); | |
9a799d71 AK |
3529 | } |
3530 | ||
2850062a AD |
3531 | /** |
3532 | * ixgbe_write_uc_addr_list - write unicast addresses to RAR table | |
3533 | * @netdev: network interface device structure | |
3534 | * | |
3535 | * Writes unicast address list to the RAR table. | |
3536 | * Returns: -ENOMEM on failure/insufficient address space | |
3537 | * 0 on no addresses written | |
3538 | * X on writing X addresses to the RAR table | |
3539 | **/ | |
3540 | static int ixgbe_write_uc_addr_list(struct net_device *netdev) | |
3541 | { | |
3542 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
3543 | struct ixgbe_hw *hw = &adapter->hw; | |
95447461 | 3544 | unsigned int rar_entries = hw->mac.num_rar_entries - 1; |
2850062a AD |
3545 | int count = 0; |
3546 | ||
95447461 JF |
3547 | /* In SR-IOV mode significantly less RAR entries are available */ |
3548 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
3549 | rar_entries = IXGBE_MAX_PF_MACVLANS - 1; | |
3550 | ||
2850062a AD |
3551 | /* return ENOMEM indicating insufficient memory for addresses */ |
3552 | if (netdev_uc_count(netdev) > rar_entries) | |
3553 | return -ENOMEM; | |
3554 | ||
95447461 | 3555 | if (!netdev_uc_empty(netdev)) { |
2850062a AD |
3556 | struct netdev_hw_addr *ha; |
3557 | /* return error if we do not support writing to RAR table */ | |
3558 | if (!hw->mac.ops.set_rar) | |
3559 | return -ENOMEM; | |
3560 | ||
3561 | netdev_for_each_uc_addr(ha, netdev) { | |
3562 | if (!rar_entries) | |
3563 | break; | |
3564 | hw->mac.ops.set_rar(hw, rar_entries--, ha->addr, | |
1d9c0bfd | 3565 | VMDQ_P(0), IXGBE_RAH_AV); |
2850062a AD |
3566 | count++; |
3567 | } | |
3568 | } | |
3569 | /* write the addresses in reverse order to avoid write combining */ | |
3570 | for (; rar_entries > 0 ; rar_entries--) | |
3571 | hw->mac.ops.clear_rar(hw, rar_entries); | |
3572 | ||
3573 | return count; | |
3574 | } | |
3575 | ||
9a799d71 | 3576 | /** |
2c5645cf | 3577 | * ixgbe_set_rx_mode - Unicast, Multicast and Promiscuous mode set |
9a799d71 AK |
3578 | * @netdev: network interface device structure |
3579 | * | |
2c5645cf CL |
3580 | * The set_rx_method entry point is called whenever the unicast/multicast |
3581 | * address list or the network interface flags are updated. This routine is | |
3582 | * responsible for configuring the hardware for proper unicast, multicast and | |
3583 | * promiscuous mode. | |
9a799d71 | 3584 | **/ |
7f870475 | 3585 | void ixgbe_set_rx_mode(struct net_device *netdev) |
9a799d71 AK |
3586 | { |
3587 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
3588 | struct ixgbe_hw *hw = &adapter->hw; | |
2850062a AD |
3589 | u32 fctrl, vmolr = IXGBE_VMOLR_BAM | IXGBE_VMOLR_AUPE; |
3590 | int count; | |
9a799d71 AK |
3591 | |
3592 | /* Check for Promiscuous and All Multicast modes */ | |
3593 | ||
3594 | fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL); | |
3595 | ||
f5dc442b | 3596 | /* set all bits that we expect to always be set */ |
3f2d1c0f | 3597 | fctrl &= ~IXGBE_FCTRL_SBP; /* disable store-bad-packets */ |
f5dc442b AD |
3598 | fctrl |= IXGBE_FCTRL_BAM; |
3599 | fctrl |= IXGBE_FCTRL_DPF; /* discard pause frames when FC enabled */ | |
3600 | fctrl |= IXGBE_FCTRL_PMCF; | |
3601 | ||
2850062a AD |
3602 | /* clear the bits we are changing the status of */ |
3603 | fctrl &= ~(IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE); | |
3604 | ||
9a799d71 | 3605 | if (netdev->flags & IFF_PROMISC) { |
e433ea1f | 3606 | hw->addr_ctrl.user_set_promisc = true; |
9a799d71 | 3607 | fctrl |= (IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE); |
2850062a | 3608 | vmolr |= (IXGBE_VMOLR_ROPE | IXGBE_VMOLR_MPE); |
5f6c0181 JB |
3609 | /* don't hardware filter vlans in promisc mode */ |
3610 | ixgbe_vlan_filter_disable(adapter); | |
9a799d71 | 3611 | } else { |
746b9f02 PM |
3612 | if (netdev->flags & IFF_ALLMULTI) { |
3613 | fctrl |= IXGBE_FCTRL_MPE; | |
2850062a AD |
3614 | vmolr |= IXGBE_VMOLR_MPE; |
3615 | } else { | |
3616 | /* | |
3617 | * Write addresses to the MTA, if the attempt fails | |
25985edc | 3618 | * then we should just turn on promiscuous mode so |
2850062a AD |
3619 | * that we can at least receive multicast traffic |
3620 | */ | |
3621 | hw->mac.ops.update_mc_addr_list(hw, netdev); | |
3622 | vmolr |= IXGBE_VMOLR_ROMPE; | |
746b9f02 | 3623 | } |
5f6c0181 | 3624 | ixgbe_vlan_filter_enable(adapter); |
e433ea1f | 3625 | hw->addr_ctrl.user_set_promisc = false; |
9dcb373c JF |
3626 | } |
3627 | ||
3628 | /* | |
3629 | * Write addresses to available RAR registers, if there is not | |
3630 | * sufficient space to store all the addresses then enable | |
3631 | * unicast promiscuous mode | |
3632 | */ | |
3633 | count = ixgbe_write_uc_addr_list(netdev); | |
3634 | if (count < 0) { | |
3635 | fctrl |= IXGBE_FCTRL_UPE; | |
3636 | vmolr |= IXGBE_VMOLR_ROPE; | |
9a799d71 AK |
3637 | } |
3638 | ||
1d9c0bfd | 3639 | if (adapter->num_vfs) |
1cdd1ec8 | 3640 | ixgbe_restore_vf_multicasts(adapter); |
1d9c0bfd AD |
3641 | |
3642 | if (hw->mac.type != ixgbe_mac_82598EB) { | |
3643 | vmolr |= IXGBE_READ_REG(hw, IXGBE_VMOLR(VMDQ_P(0))) & | |
2850062a AD |
3644 | ~(IXGBE_VMOLR_MPE | IXGBE_VMOLR_ROMPE | |
3645 | IXGBE_VMOLR_ROPE); | |
1d9c0bfd | 3646 | IXGBE_WRITE_REG(hw, IXGBE_VMOLR(VMDQ_P(0)), vmolr); |
2850062a AD |
3647 | } |
3648 | ||
3f2d1c0f BG |
3649 | /* This is useful for sniffing bad packets. */ |
3650 | if (adapter->netdev->features & NETIF_F_RXALL) { | |
3651 | /* UPE and MPE will be handled by normal PROMISC logic | |
3652 | * in e1000e_set_rx_mode */ | |
3653 | fctrl |= (IXGBE_FCTRL_SBP | /* Receive bad packets */ | |
3654 | IXGBE_FCTRL_BAM | /* RX All Bcast Pkts */ | |
3655 | IXGBE_FCTRL_PMCF); /* RX All MAC Ctrl Pkts */ | |
3656 | ||
3657 | fctrl &= ~(IXGBE_FCTRL_DPF); | |
3658 | /* NOTE: VLAN filtering is disabled by setting PROMISC */ | |
3659 | } | |
3660 | ||
2850062a | 3661 | IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl); |
f62bbb5e JG |
3662 | |
3663 | if (netdev->features & NETIF_F_HW_VLAN_RX) | |
3664 | ixgbe_vlan_strip_enable(adapter); | |
3665 | else | |
3666 | ixgbe_vlan_strip_disable(adapter); | |
9a799d71 AK |
3667 | } |
3668 | ||
021230d4 AV |
3669 | static void ixgbe_napi_enable_all(struct ixgbe_adapter *adapter) |
3670 | { | |
3671 | int q_idx; | |
021230d4 | 3672 | |
49c7ffbe AD |
3673 | for (q_idx = 0; q_idx < adapter->num_q_vectors; q_idx++) |
3674 | napi_enable(&adapter->q_vector[q_idx]->napi); | |
021230d4 AV |
3675 | } |
3676 | ||
3677 | static void ixgbe_napi_disable_all(struct ixgbe_adapter *adapter) | |
3678 | { | |
3679 | int q_idx; | |
021230d4 | 3680 | |
49c7ffbe AD |
3681 | for (q_idx = 0; q_idx < adapter->num_q_vectors; q_idx++) |
3682 | napi_disable(&adapter->q_vector[q_idx]->napi); | |
021230d4 AV |
3683 | } |
3684 | ||
7a6b6f51 | 3685 | #ifdef CONFIG_IXGBE_DCB |
49ce9c2c | 3686 | /** |
2f90b865 AD |
3687 | * ixgbe_configure_dcb - Configure DCB hardware |
3688 | * @adapter: ixgbe adapter struct | |
3689 | * | |
3690 | * This is called by the driver on open to configure the DCB hardware. | |
3691 | * This is also called by the gennetlink interface when reconfiguring | |
3692 | * the DCB state. | |
3693 | */ | |
3694 | static void ixgbe_configure_dcb(struct ixgbe_adapter *adapter) | |
3695 | { | |
3696 | struct ixgbe_hw *hw = &adapter->hw; | |
9806307a | 3697 | int max_frame = adapter->netdev->mtu + ETH_HLEN + ETH_FCS_LEN; |
2f90b865 | 3698 | |
67ebd791 AD |
3699 | if (!(adapter->flags & IXGBE_FLAG_DCB_ENABLED)) { |
3700 | if (hw->mac.type == ixgbe_mac_82598EB) | |
3701 | netif_set_gso_max_size(adapter->netdev, 65536); | |
3702 | return; | |
3703 | } | |
3704 | ||
3705 | if (hw->mac.type == ixgbe_mac_82598EB) | |
3706 | netif_set_gso_max_size(adapter->netdev, 32768); | |
3707 | ||
971060b1 | 3708 | #ifdef IXGBE_FCOE |
b120818e JF |
3709 | if (adapter->netdev->features & NETIF_F_FCOE_MTU) |
3710 | max_frame = max(max_frame, IXGBE_FCOE_JUMBO_FRAME_SIZE); | |
c27931da | 3711 | #endif |
b120818e JF |
3712 | |
3713 | /* reconfigure the hardware */ | |
3714 | if (adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE) { | |
c27931da JF |
3715 | ixgbe_dcb_calculate_tc_credits(hw, &adapter->dcb_cfg, max_frame, |
3716 | DCB_TX_CONFIG); | |
3717 | ixgbe_dcb_calculate_tc_credits(hw, &adapter->dcb_cfg, max_frame, | |
3718 | DCB_RX_CONFIG); | |
3719 | ixgbe_dcb_hw_config(hw, &adapter->dcb_cfg); | |
b120818e JF |
3720 | } else if (adapter->ixgbe_ieee_ets && adapter->ixgbe_ieee_pfc) { |
3721 | ixgbe_dcb_hw_ets(&adapter->hw, | |
3722 | adapter->ixgbe_ieee_ets, | |
3723 | max_frame); | |
3724 | ixgbe_dcb_hw_pfc_config(&adapter->hw, | |
3725 | adapter->ixgbe_ieee_pfc->pfc_en, | |
3726 | adapter->ixgbe_ieee_ets->prio_tc); | |
c27931da | 3727 | } |
8187cd48 JF |
3728 | |
3729 | /* Enable RSS Hash per TC */ | |
3730 | if (hw->mac.type != ixgbe_mac_82598EB) { | |
4ae63730 AD |
3731 | u32 msb = 0; |
3732 | u16 rss_i = adapter->ring_feature[RING_F_RSS].indices - 1; | |
8187cd48 | 3733 | |
d411a936 AD |
3734 | while (rss_i) { |
3735 | msb++; | |
3736 | rss_i >>= 1; | |
3737 | } | |
8187cd48 | 3738 | |
4ae63730 AD |
3739 | /* write msb to all 8 TCs in one write */ |
3740 | IXGBE_WRITE_REG(hw, IXGBE_RQTC, msb * 0x11111111); | |
8187cd48 | 3741 | } |
2f90b865 | 3742 | } |
9da712d2 JF |
3743 | #endif |
3744 | ||
3745 | /* Additional bittime to account for IXGBE framing */ | |
3746 | #define IXGBE_ETH_FRAMING 20 | |
3747 | ||
49ce9c2c | 3748 | /** |
9da712d2 JF |
3749 | * ixgbe_hpbthresh - calculate high water mark for flow control |
3750 | * | |
3751 | * @adapter: board private structure to calculate for | |
49ce9c2c | 3752 | * @pb: packet buffer to calculate |
9da712d2 JF |
3753 | */ |
3754 | static int ixgbe_hpbthresh(struct ixgbe_adapter *adapter, int pb) | |
3755 | { | |
3756 | struct ixgbe_hw *hw = &adapter->hw; | |
3757 | struct net_device *dev = adapter->netdev; | |
3758 | int link, tc, kb, marker; | |
3759 | u32 dv_id, rx_pba; | |
3760 | ||
3761 | /* Calculate max LAN frame size */ | |
3762 | tc = link = dev->mtu + ETH_HLEN + ETH_FCS_LEN + IXGBE_ETH_FRAMING; | |
3763 | ||
3764 | #ifdef IXGBE_FCOE | |
3765 | /* FCoE traffic class uses FCOE jumbo frames */ | |
800bd607 AD |
3766 | if ((dev->features & NETIF_F_FCOE_MTU) && |
3767 | (tc < IXGBE_FCOE_JUMBO_FRAME_SIZE) && | |
3768 | (pb == ixgbe_fcoe_get_tc(adapter))) | |
3769 | tc = IXGBE_FCOE_JUMBO_FRAME_SIZE; | |
9da712d2 JF |
3770 | |
3771 | #endif | |
9da712d2 JF |
3772 | /* Calculate delay value for device */ |
3773 | switch (hw->mac.type) { | |
3774 | case ixgbe_mac_X540: | |
3775 | dv_id = IXGBE_DV_X540(link, tc); | |
3776 | break; | |
3777 | default: | |
3778 | dv_id = IXGBE_DV(link, tc); | |
3779 | break; | |
3780 | } | |
3781 | ||
3782 | /* Loopback switch introduces additional latency */ | |
3783 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
3784 | dv_id += IXGBE_B2BT(tc); | |
3785 | ||
3786 | /* Delay value is calculated in bit times convert to KB */ | |
3787 | kb = IXGBE_BT2KB(dv_id); | |
3788 | rx_pba = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(pb)) >> 10; | |
3789 | ||
3790 | marker = rx_pba - kb; | |
3791 | ||
3792 | /* It is possible that the packet buffer is not large enough | |
3793 | * to provide required headroom. In this case throw an error | |
3794 | * to user and a do the best we can. | |
3795 | */ | |
3796 | if (marker < 0) { | |
3797 | e_warn(drv, "Packet Buffer(%i) can not provide enough" | |
3798 | "headroom to support flow control." | |
3799 | "Decrease MTU or number of traffic classes\n", pb); | |
3800 | marker = tc + 1; | |
3801 | } | |
3802 | ||
3803 | return marker; | |
3804 | } | |
3805 | ||
49ce9c2c | 3806 | /** |
9da712d2 JF |
3807 | * ixgbe_lpbthresh - calculate low water mark for for flow control |
3808 | * | |
3809 | * @adapter: board private structure to calculate for | |
49ce9c2c | 3810 | * @pb: packet buffer to calculate |
9da712d2 JF |
3811 | */ |
3812 | static int ixgbe_lpbthresh(struct ixgbe_adapter *adapter) | |
3813 | { | |
3814 | struct ixgbe_hw *hw = &adapter->hw; | |
3815 | struct net_device *dev = adapter->netdev; | |
3816 | int tc; | |
3817 | u32 dv_id; | |
3818 | ||
3819 | /* Calculate max LAN frame size */ | |
3820 | tc = dev->mtu + ETH_HLEN + ETH_FCS_LEN; | |
3821 | ||
3822 | /* Calculate delay value for device */ | |
3823 | switch (hw->mac.type) { | |
3824 | case ixgbe_mac_X540: | |
3825 | dv_id = IXGBE_LOW_DV_X540(tc); | |
3826 | break; | |
3827 | default: | |
3828 | dv_id = IXGBE_LOW_DV(tc); | |
3829 | break; | |
3830 | } | |
3831 | ||
3832 | /* Delay value is calculated in bit times convert to KB */ | |
3833 | return IXGBE_BT2KB(dv_id); | |
3834 | } | |
3835 | ||
3836 | /* | |
3837 | * ixgbe_pbthresh_setup - calculate and setup high low water marks | |
3838 | */ | |
3839 | static void ixgbe_pbthresh_setup(struct ixgbe_adapter *adapter) | |
3840 | { | |
3841 | struct ixgbe_hw *hw = &adapter->hw; | |
3842 | int num_tc = netdev_get_num_tc(adapter->netdev); | |
3843 | int i; | |
3844 | ||
3845 | if (!num_tc) | |
3846 | num_tc = 1; | |
3847 | ||
3848 | hw->fc.low_water = ixgbe_lpbthresh(adapter); | |
3849 | ||
3850 | for (i = 0; i < num_tc; i++) { | |
3851 | hw->fc.high_water[i] = ixgbe_hpbthresh(adapter, i); | |
3852 | ||
3853 | /* Low water marks must not be larger than high water marks */ | |
3854 | if (hw->fc.low_water > hw->fc.high_water[i]) | |
3855 | hw->fc.low_water = 0; | |
3856 | } | |
3857 | } | |
3858 | ||
80605c65 JF |
3859 | static void ixgbe_configure_pb(struct ixgbe_adapter *adapter) |
3860 | { | |
80605c65 | 3861 | struct ixgbe_hw *hw = &adapter->hw; |
f7e1027f AD |
3862 | int hdrm; |
3863 | u8 tc = netdev_get_num_tc(adapter->netdev); | |
80605c65 JF |
3864 | |
3865 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE || | |
3866 | adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) | |
f7e1027f AD |
3867 | hdrm = 32 << adapter->fdir_pballoc; |
3868 | else | |
3869 | hdrm = 0; | |
80605c65 | 3870 | |
f7e1027f | 3871 | hw->mac.ops.set_rxpba(hw, tc, hdrm, PBA_STRATEGY_EQUAL); |
9da712d2 | 3872 | ixgbe_pbthresh_setup(adapter); |
80605c65 JF |
3873 | } |
3874 | ||
e4911d57 AD |
3875 | static void ixgbe_fdir_filter_restore(struct ixgbe_adapter *adapter) |
3876 | { | |
3877 | struct ixgbe_hw *hw = &adapter->hw; | |
3878 | struct hlist_node *node, *node2; | |
3879 | struct ixgbe_fdir_filter *filter; | |
3880 | ||
3881 | spin_lock(&adapter->fdir_perfect_lock); | |
3882 | ||
3883 | if (!hlist_empty(&adapter->fdir_filter_list)) | |
3884 | ixgbe_fdir_set_input_mask_82599(hw, &adapter->fdir_mask); | |
3885 | ||
3886 | hlist_for_each_entry_safe(filter, node, node2, | |
3887 | &adapter->fdir_filter_list, fdir_node) { | |
3888 | ixgbe_fdir_write_perfect_filter_82599(hw, | |
1f4d5183 AD |
3889 | &filter->filter, |
3890 | filter->sw_idx, | |
3891 | (filter->action == IXGBE_FDIR_DROP_QUEUE) ? | |
3892 | IXGBE_FDIR_DROP_QUEUE : | |
3893 | adapter->rx_ring[filter->action]->reg_idx); | |
e4911d57 AD |
3894 | } |
3895 | ||
3896 | spin_unlock(&adapter->fdir_perfect_lock); | |
3897 | } | |
3898 | ||
9a799d71 AK |
3899 | static void ixgbe_configure(struct ixgbe_adapter *adapter) |
3900 | { | |
d2f5e7f3 AS |
3901 | struct ixgbe_hw *hw = &adapter->hw; |
3902 | ||
80605c65 | 3903 | ixgbe_configure_pb(adapter); |
7a6b6f51 | 3904 | #ifdef CONFIG_IXGBE_DCB |
67ebd791 | 3905 | ixgbe_configure_dcb(adapter); |
2f90b865 | 3906 | #endif |
b35d4d42 AD |
3907 | /* |
3908 | * We must restore virtualization before VLANs or else | |
3909 | * the VLVF registers will not be populated | |
3910 | */ | |
3911 | ixgbe_configure_virtualization(adapter); | |
9a799d71 | 3912 | |
4c1d7b4b | 3913 | ixgbe_set_rx_mode(adapter->netdev); |
f62bbb5e JG |
3914 | ixgbe_restore_vlan(adapter); |
3915 | ||
d2f5e7f3 AS |
3916 | switch (hw->mac.type) { |
3917 | case ixgbe_mac_82599EB: | |
3918 | case ixgbe_mac_X540: | |
3919 | hw->mac.ops.disable_rx_buff(hw); | |
3920 | break; | |
3921 | default: | |
3922 | break; | |
3923 | } | |
3924 | ||
c4cf55e5 | 3925 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { |
4c1d7b4b AD |
3926 | ixgbe_init_fdir_signature_82599(&adapter->hw, |
3927 | adapter->fdir_pballoc); | |
e4911d57 AD |
3928 | } else if (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) { |
3929 | ixgbe_init_fdir_perfect_82599(&adapter->hw, | |
3930 | adapter->fdir_pballoc); | |
3931 | ixgbe_fdir_filter_restore(adapter); | |
c4cf55e5 | 3932 | } |
4c1d7b4b | 3933 | |
d2f5e7f3 AS |
3934 | switch (hw->mac.type) { |
3935 | case ixgbe_mac_82599EB: | |
3936 | case ixgbe_mac_X540: | |
3937 | hw->mac.ops.enable_rx_buff(hw); | |
3938 | break; | |
3939 | default: | |
3940 | break; | |
3941 | } | |
3942 | ||
7c8ae65a AD |
3943 | #ifdef IXGBE_FCOE |
3944 | /* configure FCoE L2 filters, redirection table, and Rx control */ | |
3945 | ixgbe_configure_fcoe(adapter); | |
3946 | ||
3947 | #endif /* IXGBE_FCOE */ | |
9a799d71 AK |
3948 | ixgbe_configure_tx(adapter); |
3949 | ixgbe_configure_rx(adapter); | |
9a799d71 AK |
3950 | } |
3951 | ||
e8e26350 PW |
3952 | static inline bool ixgbe_is_sfp(struct ixgbe_hw *hw) |
3953 | { | |
3954 | switch (hw->phy.type) { | |
3955 | case ixgbe_phy_sfp_avago: | |
3956 | case ixgbe_phy_sfp_ftl: | |
3957 | case ixgbe_phy_sfp_intel: | |
3958 | case ixgbe_phy_sfp_unknown: | |
ea0a04df DS |
3959 | case ixgbe_phy_sfp_passive_tyco: |
3960 | case ixgbe_phy_sfp_passive_unknown: | |
3961 | case ixgbe_phy_sfp_active_unknown: | |
3962 | case ixgbe_phy_sfp_ftl_active: | |
e8e26350 | 3963 | return true; |
8917b447 AD |
3964 | case ixgbe_phy_nl: |
3965 | if (hw->mac.type == ixgbe_mac_82598EB) | |
3966 | return true; | |
e8e26350 PW |
3967 | default: |
3968 | return false; | |
3969 | } | |
3970 | } | |
3971 | ||
0ecc061d | 3972 | /** |
e8e26350 PW |
3973 | * ixgbe_sfp_link_config - set up SFP+ link |
3974 | * @adapter: pointer to private adapter struct | |
3975 | **/ | |
3976 | static void ixgbe_sfp_link_config(struct ixgbe_adapter *adapter) | |
3977 | { | |
7086400d | 3978 | /* |
52f33af8 | 3979 | * We are assuming the worst case scenario here, and that |
7086400d AD |
3980 | * is that an SFP was inserted/removed after the reset |
3981 | * but before SFP detection was enabled. As such the best | |
3982 | * solution is to just start searching as soon as we start | |
3983 | */ | |
3984 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) | |
3985 | adapter->flags2 |= IXGBE_FLAG2_SEARCH_FOR_SFP; | |
e8e26350 | 3986 | |
7086400d | 3987 | adapter->flags2 |= IXGBE_FLAG2_SFP_NEEDS_RESET; |
e8e26350 PW |
3988 | } |
3989 | ||
3990 | /** | |
3991 | * ixgbe_non_sfp_link_config - set up non-SFP+ link | |
0ecc061d PWJ |
3992 | * @hw: pointer to private hardware struct |
3993 | * | |
3994 | * Returns 0 on success, negative on failure | |
3995 | **/ | |
e8e26350 | 3996 | static int ixgbe_non_sfp_link_config(struct ixgbe_hw *hw) |
0ecc061d | 3997 | { |
3d292265 JH |
3998 | u32 speed; |
3999 | bool autoneg, link_up = false; | |
0ecc061d PWJ |
4000 | u32 ret = IXGBE_ERR_LINK_SETUP; |
4001 | ||
4002 | if (hw->mac.ops.check_link) | |
3d292265 | 4003 | ret = hw->mac.ops.check_link(hw, &speed, &link_up, false); |
0ecc061d PWJ |
4004 | |
4005 | if (ret) | |
4006 | goto link_cfg_out; | |
4007 | ||
3d292265 JH |
4008 | speed = hw->phy.autoneg_advertised; |
4009 | if ((!speed) && (hw->mac.ops.get_link_capabilities)) | |
4010 | ret = hw->mac.ops.get_link_capabilities(hw, &speed, | |
4011 | &autoneg); | |
0ecc061d PWJ |
4012 | if (ret) |
4013 | goto link_cfg_out; | |
4014 | ||
8620a103 | 4015 | if (hw->mac.ops.setup_link) |
fd0326f2 | 4016 | ret = hw->mac.ops.setup_link(hw, speed, link_up); |
0ecc061d PWJ |
4017 | link_cfg_out: |
4018 | return ret; | |
4019 | } | |
4020 | ||
a34bcfff | 4021 | static void ixgbe_setup_gpie(struct ixgbe_adapter *adapter) |
9a799d71 | 4022 | { |
9a799d71 | 4023 | struct ixgbe_hw *hw = &adapter->hw; |
a34bcfff | 4024 | u32 gpie = 0; |
9a799d71 | 4025 | |
9b471446 | 4026 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
a34bcfff AD |
4027 | gpie = IXGBE_GPIE_MSIX_MODE | IXGBE_GPIE_PBA_SUPPORT | |
4028 | IXGBE_GPIE_OCD; | |
4029 | gpie |= IXGBE_GPIE_EIAME; | |
9b471446 JB |
4030 | /* |
4031 | * use EIAM to auto-mask when MSI-X interrupt is asserted | |
4032 | * this saves a register write for every interrupt | |
4033 | */ | |
4034 | switch (hw->mac.type) { | |
4035 | case ixgbe_mac_82598EB: | |
4036 | IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE); | |
4037 | break; | |
9b471446 | 4038 | case ixgbe_mac_82599EB: |
b93a2226 DS |
4039 | case ixgbe_mac_X540: |
4040 | default: | |
9b471446 JB |
4041 | IXGBE_WRITE_REG(hw, IXGBE_EIAM_EX(0), 0xFFFFFFFF); |
4042 | IXGBE_WRITE_REG(hw, IXGBE_EIAM_EX(1), 0xFFFFFFFF); | |
4043 | break; | |
4044 | } | |
4045 | } else { | |
021230d4 AV |
4046 | /* legacy interrupts, use EIAM to auto-mask when reading EICR, |
4047 | * specifically only auto mask tx and rx interrupts */ | |
4048 | IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE); | |
4049 | } | |
9a799d71 | 4050 | |
a34bcfff AD |
4051 | /* XXX: to interrupt immediately for EICS writes, enable this */ |
4052 | /* gpie |= IXGBE_GPIE_EIMEN; */ | |
4053 | ||
4054 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { | |
4055 | gpie &= ~IXGBE_GPIE_VTMODE_MASK; | |
73079ea0 AD |
4056 | |
4057 | switch (adapter->ring_feature[RING_F_VMDQ].mask) { | |
4058 | case IXGBE_82599_VMDQ_8Q_MASK: | |
4059 | gpie |= IXGBE_GPIE_VTMODE_16; | |
4060 | break; | |
4061 | case IXGBE_82599_VMDQ_4Q_MASK: | |
4062 | gpie |= IXGBE_GPIE_VTMODE_32; | |
4063 | break; | |
4064 | default: | |
4065 | gpie |= IXGBE_GPIE_VTMODE_64; | |
4066 | break; | |
4067 | } | |
119fc60a MC |
4068 | } |
4069 | ||
5fdd31f9 | 4070 | /* Enable Thermal over heat sensor interrupt */ |
f3df98ec DS |
4071 | if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) { |
4072 | switch (adapter->hw.mac.type) { | |
4073 | case ixgbe_mac_82599EB: | |
4074 | gpie |= IXGBE_SDP0_GPIEN; | |
4075 | break; | |
4076 | case ixgbe_mac_X540: | |
4077 | gpie |= IXGBE_EIMS_TS; | |
4078 | break; | |
4079 | default: | |
4080 | break; | |
4081 | } | |
4082 | } | |
5fdd31f9 | 4083 | |
a34bcfff AD |
4084 | /* Enable fan failure interrupt */ |
4085 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) | |
0befdb3e | 4086 | gpie |= IXGBE_SDP1_GPIEN; |
0befdb3e | 4087 | |
2698b208 | 4088 | if (hw->mac.type == ixgbe_mac_82599EB) { |
e8e26350 PW |
4089 | gpie |= IXGBE_SDP1_GPIEN; |
4090 | gpie |= IXGBE_SDP2_GPIEN; | |
2698b208 | 4091 | } |
a34bcfff AD |
4092 | |
4093 | IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); | |
4094 | } | |
4095 | ||
c7ccde0f | 4096 | static void ixgbe_up_complete(struct ixgbe_adapter *adapter) |
a34bcfff AD |
4097 | { |
4098 | struct ixgbe_hw *hw = &adapter->hw; | |
a34bcfff | 4099 | int err; |
a34bcfff AD |
4100 | u32 ctrl_ext; |
4101 | ||
4102 | ixgbe_get_hw_control(adapter); | |
4103 | ixgbe_setup_gpie(adapter); | |
e8e26350 | 4104 | |
9a799d71 AK |
4105 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) |
4106 | ixgbe_configure_msix(adapter); | |
4107 | else | |
4108 | ixgbe_configure_msi_and_legacy(adapter); | |
4109 | ||
ec74a471 ET |
4110 | /* enable the optics for 82599 SFP+ fiber */ |
4111 | if (hw->mac.ops.enable_tx_laser) | |
61fac744 PW |
4112 | hw->mac.ops.enable_tx_laser(hw); |
4113 | ||
9a799d71 | 4114 | clear_bit(__IXGBE_DOWN, &adapter->state); |
021230d4 AV |
4115 | ixgbe_napi_enable_all(adapter); |
4116 | ||
73c4b7cd AD |
4117 | if (ixgbe_is_sfp(hw)) { |
4118 | ixgbe_sfp_link_config(adapter); | |
4119 | } else { | |
4120 | err = ixgbe_non_sfp_link_config(hw); | |
4121 | if (err) | |
4122 | e_err(probe, "link_config FAILED %d\n", err); | |
4123 | } | |
4124 | ||
021230d4 AV |
4125 | /* clear any pending interrupts, may auto mask */ |
4126 | IXGBE_READ_REG(hw, IXGBE_EICR); | |
6af3b9eb | 4127 | ixgbe_irq_enable(adapter, true, true); |
9a799d71 | 4128 | |
bf069c97 DS |
4129 | /* |
4130 | * If this adapter has a fan, check to see if we had a failure | |
4131 | * before we enabled the interrupt. | |
4132 | */ | |
4133 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) { | |
4134 | u32 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); | |
4135 | if (esdp & IXGBE_ESDP_SDP1) | |
396e799c | 4136 | e_crit(drv, "Fan has stopped, replace the adapter\n"); |
bf069c97 DS |
4137 | } |
4138 | ||
1da100bb | 4139 | /* enable transmits */ |
477de6ed | 4140 | netif_tx_start_all_queues(adapter->netdev); |
1da100bb | 4141 | |
9a799d71 AK |
4142 | /* bring the link up in the watchdog, this could race with our first |
4143 | * link up interrupt but shouldn't be a problem */ | |
cf8280ee JB |
4144 | adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; |
4145 | adapter->link_check_timeout = jiffies; | |
7086400d | 4146 | mod_timer(&adapter->service_timer, jiffies); |
c9205697 GR |
4147 | |
4148 | /* Set PF Reset Done bit so PF/VF Mail Ops can work */ | |
4149 | ctrl_ext = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT); | |
4150 | ctrl_ext |= IXGBE_CTRL_EXT_PFRSTD; | |
4151 | IXGBE_WRITE_REG(hw, IXGBE_CTRL_EXT, ctrl_ext); | |
9a799d71 AK |
4152 | } |
4153 | ||
d4f80882 AV |
4154 | void ixgbe_reinit_locked(struct ixgbe_adapter *adapter) |
4155 | { | |
4156 | WARN_ON(in_interrupt()); | |
7086400d AD |
4157 | /* put off any impending NetWatchDogTimeout */ |
4158 | adapter->netdev->trans_start = jiffies; | |
4159 | ||
d4f80882 | 4160 | while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state)) |
032b4325 | 4161 | usleep_range(1000, 2000); |
d4f80882 | 4162 | ixgbe_down(adapter); |
5809a1ae GR |
4163 | /* |
4164 | * If SR-IOV enabled then wait a bit before bringing the adapter | |
4165 | * back up to give the VFs time to respond to the reset. The | |
4166 | * two second wait is based upon the watchdog timer cycle in | |
4167 | * the VF driver. | |
4168 | */ | |
4169 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
4170 | msleep(2000); | |
d4f80882 AV |
4171 | ixgbe_up(adapter); |
4172 | clear_bit(__IXGBE_RESETTING, &adapter->state); | |
4173 | } | |
4174 | ||
c7ccde0f | 4175 | void ixgbe_up(struct ixgbe_adapter *adapter) |
9a799d71 AK |
4176 | { |
4177 | /* hardware has been reset, we need to reload some things */ | |
4178 | ixgbe_configure(adapter); | |
4179 | ||
c7ccde0f | 4180 | ixgbe_up_complete(adapter); |
9a799d71 AK |
4181 | } |
4182 | ||
4183 | void ixgbe_reset(struct ixgbe_adapter *adapter) | |
4184 | { | |
c44ade9e | 4185 | struct ixgbe_hw *hw = &adapter->hw; |
8ca783ab DS |
4186 | int err; |
4187 | ||
7086400d AD |
4188 | /* lock SFP init bit to prevent race conditions with the watchdog */ |
4189 | while (test_and_set_bit(__IXGBE_IN_SFP_INIT, &adapter->state)) | |
4190 | usleep_range(1000, 2000); | |
4191 | ||
4192 | /* clear all SFP and link config related flags while holding SFP_INIT */ | |
4193 | adapter->flags2 &= ~(IXGBE_FLAG2_SEARCH_FOR_SFP | | |
4194 | IXGBE_FLAG2_SFP_NEEDS_RESET); | |
4195 | adapter->flags &= ~IXGBE_FLAG_NEED_LINK_CONFIG; | |
4196 | ||
8ca783ab | 4197 | err = hw->mac.ops.init_hw(hw); |
da4dd0f7 PWJ |
4198 | switch (err) { |
4199 | case 0: | |
4200 | case IXGBE_ERR_SFP_NOT_PRESENT: | |
7086400d | 4201 | case IXGBE_ERR_SFP_NOT_SUPPORTED: |
da4dd0f7 PWJ |
4202 | break; |
4203 | case IXGBE_ERR_MASTER_REQUESTS_PENDING: | |
849c4542 | 4204 | e_dev_err("master disable timed out\n"); |
da4dd0f7 | 4205 | break; |
794caeb2 PWJ |
4206 | case IXGBE_ERR_EEPROM_VERSION: |
4207 | /* We are running on a pre-production device, log a warning */ | |
849c4542 | 4208 | e_dev_warn("This device is a pre-production adapter/LOM. " |
52f33af8 | 4209 | "Please be aware there may be issues associated with " |
849c4542 ET |
4210 | "your hardware. If you are experiencing problems " |
4211 | "please contact your Intel or hardware " | |
4212 | "representative who provided you with this " | |
4213 | "hardware.\n"); | |
794caeb2 | 4214 | break; |
da4dd0f7 | 4215 | default: |
849c4542 | 4216 | e_dev_err("Hardware Error: %d\n", err); |
da4dd0f7 | 4217 | } |
9a799d71 | 4218 | |
7086400d AD |
4219 | clear_bit(__IXGBE_IN_SFP_INIT, &adapter->state); |
4220 | ||
9a799d71 | 4221 | /* reprogram the RAR[0] in case user changed it. */ |
1d9c0bfd | 4222 | hw->mac.ops.set_rar(hw, 0, hw->mac.addr, VMDQ_P(0), IXGBE_RAH_AV); |
7fa7c9dc AD |
4223 | |
4224 | /* update SAN MAC vmdq pool selection */ | |
4225 | if (hw->mac.san_mac_rar_index) | |
4226 | hw->mac.ops.set_vmdq_san_mac(hw, VMDQ_P(0)); | |
1a71ab24 | 4227 | |
1a71ab24 JK |
4228 | if (adapter->flags2 & IXGBE_FLAG2_PTP_ENABLED) |
4229 | ixgbe_ptp_reset(adapter); | |
9a799d71 AK |
4230 | } |
4231 | ||
9a799d71 AK |
4232 | /** |
4233 | * ixgbe_clean_rx_ring - Free Rx Buffers per Queue | |
9a799d71 AK |
4234 | * @rx_ring: ring to free buffers from |
4235 | **/ | |
b6ec895e | 4236 | static void ixgbe_clean_rx_ring(struct ixgbe_ring *rx_ring) |
9a799d71 | 4237 | { |
b6ec895e | 4238 | struct device *dev = rx_ring->dev; |
9a799d71 | 4239 | unsigned long size; |
b6ec895e | 4240 | u16 i; |
9a799d71 | 4241 | |
84418e3b AD |
4242 | /* ring already cleared, nothing to do */ |
4243 | if (!rx_ring->rx_buffer_info) | |
4244 | return; | |
9a799d71 | 4245 | |
84418e3b | 4246 | /* Free all the Rx ring sk_buffs */ |
9a799d71 | 4247 | for (i = 0; i < rx_ring->count; i++) { |
f800326d AD |
4248 | struct ixgbe_rx_buffer *rx_buffer; |
4249 | ||
4250 | rx_buffer = &rx_ring->rx_buffer_info[i]; | |
4251 | if (rx_buffer->skb) { | |
4252 | struct sk_buff *skb = rx_buffer->skb; | |
4253 | if (IXGBE_CB(skb)->page_released) { | |
4254 | dma_unmap_page(dev, | |
4255 | IXGBE_CB(skb)->dma, | |
4256 | ixgbe_rx_bufsz(rx_ring), | |
4257 | DMA_FROM_DEVICE); | |
4258 | IXGBE_CB(skb)->page_released = false; | |
4c1975d7 AD |
4259 | } |
4260 | dev_kfree_skb(skb); | |
9a799d71 | 4261 | } |
f800326d AD |
4262 | rx_buffer->skb = NULL; |
4263 | if (rx_buffer->dma) | |
4264 | dma_unmap_page(dev, rx_buffer->dma, | |
4265 | ixgbe_rx_pg_size(rx_ring), | |
4266 | DMA_FROM_DEVICE); | |
4267 | rx_buffer->dma = 0; | |
4268 | if (rx_buffer->page) | |
dd411ec4 AD |
4269 | __free_pages(rx_buffer->page, |
4270 | ixgbe_rx_pg_order(rx_ring)); | |
f800326d | 4271 | rx_buffer->page = NULL; |
9a799d71 AK |
4272 | } |
4273 | ||
4274 | size = sizeof(struct ixgbe_rx_buffer) * rx_ring->count; | |
4275 | memset(rx_ring->rx_buffer_info, 0, size); | |
4276 | ||
4277 | /* Zero out the descriptor ring */ | |
4278 | memset(rx_ring->desc, 0, rx_ring->size); | |
4279 | ||
f800326d | 4280 | rx_ring->next_to_alloc = 0; |
9a799d71 AK |
4281 | rx_ring->next_to_clean = 0; |
4282 | rx_ring->next_to_use = 0; | |
9a799d71 AK |
4283 | } |
4284 | ||
4285 | /** | |
4286 | * ixgbe_clean_tx_ring - Free Tx Buffers | |
9a799d71 AK |
4287 | * @tx_ring: ring to be cleaned |
4288 | **/ | |
b6ec895e | 4289 | static void ixgbe_clean_tx_ring(struct ixgbe_ring *tx_ring) |
9a799d71 AK |
4290 | { |
4291 | struct ixgbe_tx_buffer *tx_buffer_info; | |
4292 | unsigned long size; | |
b6ec895e | 4293 | u16 i; |
9a799d71 | 4294 | |
84418e3b AD |
4295 | /* ring already cleared, nothing to do */ |
4296 | if (!tx_ring->tx_buffer_info) | |
4297 | return; | |
9a799d71 | 4298 | |
84418e3b | 4299 | /* Free all the Tx ring sk_buffs */ |
9a799d71 AK |
4300 | for (i = 0; i < tx_ring->count; i++) { |
4301 | tx_buffer_info = &tx_ring->tx_buffer_info[i]; | |
b6ec895e | 4302 | ixgbe_unmap_and_free_tx_resource(tx_ring, tx_buffer_info); |
9a799d71 AK |
4303 | } |
4304 | ||
dad8a3b3 JF |
4305 | netdev_tx_reset_queue(txring_txq(tx_ring)); |
4306 | ||
9a799d71 AK |
4307 | size = sizeof(struct ixgbe_tx_buffer) * tx_ring->count; |
4308 | memset(tx_ring->tx_buffer_info, 0, size); | |
4309 | ||
4310 | /* Zero out the descriptor ring */ | |
4311 | memset(tx_ring->desc, 0, tx_ring->size); | |
4312 | ||
4313 | tx_ring->next_to_use = 0; | |
4314 | tx_ring->next_to_clean = 0; | |
9a799d71 AK |
4315 | } |
4316 | ||
4317 | /** | |
021230d4 | 4318 | * ixgbe_clean_all_rx_rings - Free Rx Buffers for all queues |
9a799d71 AK |
4319 | * @adapter: board private structure |
4320 | **/ | |
021230d4 | 4321 | static void ixgbe_clean_all_rx_rings(struct ixgbe_adapter *adapter) |
9a799d71 AK |
4322 | { |
4323 | int i; | |
4324 | ||
021230d4 | 4325 | for (i = 0; i < adapter->num_rx_queues; i++) |
b6ec895e | 4326 | ixgbe_clean_rx_ring(adapter->rx_ring[i]); |
9a799d71 AK |
4327 | } |
4328 | ||
4329 | /** | |
021230d4 | 4330 | * ixgbe_clean_all_tx_rings - Free Tx Buffers for all queues |
9a799d71 AK |
4331 | * @adapter: board private structure |
4332 | **/ | |
021230d4 | 4333 | static void ixgbe_clean_all_tx_rings(struct ixgbe_adapter *adapter) |
9a799d71 AK |
4334 | { |
4335 | int i; | |
4336 | ||
021230d4 | 4337 | for (i = 0; i < adapter->num_tx_queues; i++) |
b6ec895e | 4338 | ixgbe_clean_tx_ring(adapter->tx_ring[i]); |
9a799d71 AK |
4339 | } |
4340 | ||
e4911d57 AD |
4341 | static void ixgbe_fdir_filter_exit(struct ixgbe_adapter *adapter) |
4342 | { | |
4343 | struct hlist_node *node, *node2; | |
4344 | struct ixgbe_fdir_filter *filter; | |
4345 | ||
4346 | spin_lock(&adapter->fdir_perfect_lock); | |
4347 | ||
4348 | hlist_for_each_entry_safe(filter, node, node2, | |
4349 | &adapter->fdir_filter_list, fdir_node) { | |
4350 | hlist_del(&filter->fdir_node); | |
4351 | kfree(filter); | |
4352 | } | |
4353 | adapter->fdir_filter_count = 0; | |
4354 | ||
4355 | spin_unlock(&adapter->fdir_perfect_lock); | |
4356 | } | |
4357 | ||
9a799d71 AK |
4358 | void ixgbe_down(struct ixgbe_adapter *adapter) |
4359 | { | |
4360 | struct net_device *netdev = adapter->netdev; | |
7f821875 | 4361 | struct ixgbe_hw *hw = &adapter->hw; |
9a799d71 | 4362 | u32 rxctrl; |
bf29ee6c | 4363 | int i; |
9a799d71 AK |
4364 | |
4365 | /* signal that we are down to the interrupt handler */ | |
4366 | set_bit(__IXGBE_DOWN, &adapter->state); | |
4367 | ||
4368 | /* disable receives */ | |
7f821875 JB |
4369 | rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL); |
4370 | IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl & ~IXGBE_RXCTRL_RXEN); | |
9a799d71 | 4371 | |
2d39d576 YZ |
4372 | /* disable all enabled rx queues */ |
4373 | for (i = 0; i < adapter->num_rx_queues; i++) | |
4374 | /* this call also flushes the previous write */ | |
4375 | ixgbe_disable_rx_queue(adapter, adapter->rx_ring[i]); | |
4376 | ||
032b4325 | 4377 | usleep_range(10000, 20000); |
9a799d71 | 4378 | |
7f821875 JB |
4379 | netif_tx_stop_all_queues(netdev); |
4380 | ||
7086400d | 4381 | /* call carrier off first to avoid false dev_watchdog timeouts */ |
c0dfb90e JF |
4382 | netif_carrier_off(netdev); |
4383 | netif_tx_disable(netdev); | |
4384 | ||
4385 | ixgbe_irq_disable(adapter); | |
4386 | ||
4387 | ixgbe_napi_disable_all(adapter); | |
4388 | ||
d034acf1 AD |
4389 | adapter->flags2 &= ~(IXGBE_FLAG2_FDIR_REQUIRES_REINIT | |
4390 | IXGBE_FLAG2_RESET_REQUESTED); | |
7086400d AD |
4391 | adapter->flags &= ~IXGBE_FLAG_NEED_LINK_UPDATE; |
4392 | ||
4393 | del_timer_sync(&adapter->service_timer); | |
4394 | ||
34cecbbf | 4395 | if (adapter->num_vfs) { |
8e34d1aa AD |
4396 | /* Clear EITR Select mapping */ |
4397 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITRSEL, 0); | |
34cecbbf AD |
4398 | |
4399 | /* Mark all the VFs as inactive */ | |
4400 | for (i = 0 ; i < adapter->num_vfs; i++) | |
3db1cd5c | 4401 | adapter->vfinfo[i].clear_to_send = false; |
34cecbbf | 4402 | |
34cecbbf AD |
4403 | /* ping all the active vfs to let them know we are going down */ |
4404 | ixgbe_ping_all_vfs(adapter); | |
4405 | ||
4406 | /* Disable all VFTE/VFRE TX/RX */ | |
4407 | ixgbe_disable_tx_rx(adapter); | |
b25ebfd2 PW |
4408 | } |
4409 | ||
7f821875 JB |
4410 | /* disable transmits in the hardware now that interrupts are off */ |
4411 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
bf29ee6c | 4412 | u8 reg_idx = adapter->tx_ring[i]->reg_idx; |
34cecbbf | 4413 | IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(reg_idx), IXGBE_TXDCTL_SWFLSH); |
7f821875 | 4414 | } |
34cecbbf AD |
4415 | |
4416 | /* Disable the Tx DMA engine on 82599 and X540 */ | |
bd508178 AD |
4417 | switch (hw->mac.type) { |
4418 | case ixgbe_mac_82599EB: | |
b93a2226 | 4419 | case ixgbe_mac_X540: |
88512539 | 4420 | IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL, |
e8e9f696 JP |
4421 | (IXGBE_READ_REG(hw, IXGBE_DMATXCTL) & |
4422 | ~IXGBE_DMATXCTL_TE)); | |
bd508178 AD |
4423 | break; |
4424 | default: | |
4425 | break; | |
4426 | } | |
7f821875 | 4427 | |
6f4a0e45 PL |
4428 | if (!pci_channel_offline(adapter->pdev)) |
4429 | ixgbe_reset(adapter); | |
c6ecf39a | 4430 | |
ec74a471 ET |
4431 | /* power down the optics for 82599 SFP+ fiber */ |
4432 | if (hw->mac.ops.disable_tx_laser) | |
c6ecf39a DS |
4433 | hw->mac.ops.disable_tx_laser(hw); |
4434 | ||
9a799d71 AK |
4435 | ixgbe_clean_all_tx_rings(adapter); |
4436 | ixgbe_clean_all_rx_rings(adapter); | |
4437 | ||
5dd2d332 | 4438 | #ifdef CONFIG_IXGBE_DCA |
96b0e0f6 | 4439 | /* since we reset the hardware DCA settings were cleared */ |
e35ec126 | 4440 | ixgbe_setup_dca(adapter); |
96b0e0f6 | 4441 | #endif |
9a799d71 AK |
4442 | } |
4443 | ||
9a799d71 AK |
4444 | /** |
4445 | * ixgbe_tx_timeout - Respond to a Tx Hang | |
4446 | * @netdev: network interface device structure | |
4447 | **/ | |
4448 | static void ixgbe_tx_timeout(struct net_device *netdev) | |
4449 | { | |
4450 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
4451 | ||
4452 | /* Do the reset outside of interrupt context */ | |
c83c6cbd | 4453 | ixgbe_tx_timeout_reset(adapter); |
9a799d71 AK |
4454 | } |
4455 | ||
9a799d71 AK |
4456 | /** |
4457 | * ixgbe_sw_init - Initialize general software structures (struct ixgbe_adapter) | |
4458 | * @adapter: board private structure to initialize | |
4459 | * | |
4460 | * ixgbe_sw_init initializes the Adapter private data structure. | |
4461 | * Fields are initialized based on PCI device information and | |
4462 | * OS network device settings (MTU size). | |
4463 | **/ | |
9f9a12f8 | 4464 | static int ixgbe_sw_init(struct ixgbe_adapter *adapter) |
9a799d71 AK |
4465 | { |
4466 | struct ixgbe_hw *hw = &adapter->hw; | |
4467 | struct pci_dev *pdev = adapter->pdev; | |
021230d4 | 4468 | unsigned int rss; |
cb6d0f5e | 4469 | u32 fwsm; |
7a6b6f51 | 4470 | #ifdef CONFIG_IXGBE_DCB |
2f90b865 AD |
4471 | int j; |
4472 | struct tc_configuration *tc; | |
4473 | #endif | |
021230d4 | 4474 | |
c44ade9e JB |
4475 | /* PCI config space info */ |
4476 | ||
4477 | hw->vendor_id = pdev->vendor; | |
4478 | hw->device_id = pdev->device; | |
4479 | hw->revision_id = pdev->revision; | |
4480 | hw->subsystem_vendor_id = pdev->subsystem_vendor; | |
4481 | hw->subsystem_device_id = pdev->subsystem_device; | |
4482 | ||
021230d4 | 4483 | /* Set capability flags */ |
3ed69d7e | 4484 | rss = min_t(int, IXGBE_MAX_RSS_INDICES, num_online_cpus()); |
c087663e | 4485 | adapter->ring_feature[RING_F_RSS].limit = rss; |
bd508178 AD |
4486 | switch (hw->mac.type) { |
4487 | case ixgbe_mac_82598EB: | |
bf069c97 DS |
4488 | if (hw->device_id == IXGBE_DEV_ID_82598AT) |
4489 | adapter->flags |= IXGBE_FLAG_FAN_FAIL_CAPABLE; | |
49c7ffbe | 4490 | adapter->max_q_vectors = MAX_Q_VECTORS_82598; |
bd508178 | 4491 | break; |
b93a2226 | 4492 | case ixgbe_mac_X540: |
cb6d0f5e JK |
4493 | fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM); |
4494 | if (fwsm & IXGBE_FWSM_TS_ENABLED) | |
4495 | adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_CAPABLE; | |
4f51bf70 | 4496 | case ixgbe_mac_82599EB: |
49c7ffbe | 4497 | adapter->max_q_vectors = MAX_Q_VECTORS_82599; |
0c19d6af PWJ |
4498 | adapter->flags2 |= IXGBE_FLAG2_RSC_CAPABLE; |
4499 | adapter->flags2 |= IXGBE_FLAG2_RSC_ENABLED; | |
119fc60a MC |
4500 | if (hw->device_id == IXGBE_DEV_ID_82599_T3_LOM) |
4501 | adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_CAPABLE; | |
45b9f509 | 4502 | /* Flow Director hash filters enabled */ |
45b9f509 | 4503 | adapter->atr_sample_rate = 20; |
c087663e | 4504 | adapter->ring_feature[RING_F_FDIR].limit = |
e8e9f696 | 4505 | IXGBE_MAX_FDIR_INDICES; |
c04f6ca8 | 4506 | adapter->fdir_pballoc = IXGBE_FDIR_PBALLOC_64K; |
eacd73f7 | 4507 | #ifdef IXGBE_FCOE |
0d551589 YZ |
4508 | adapter->flags |= IXGBE_FLAG_FCOE_CAPABLE; |
4509 | adapter->flags &= ~IXGBE_FLAG_FCOE_ENABLED; | |
61a0f421 | 4510 | #ifdef CONFIG_IXGBE_DCB |
6ee16520 | 4511 | /* Default traffic class to use for FCoE */ |
56075a98 | 4512 | adapter->fcoe.up = IXGBE_FCOE_DEFTC; |
61a0f421 | 4513 | #endif |
eacd73f7 | 4514 | #endif /* IXGBE_FCOE */ |
bd508178 AD |
4515 | break; |
4516 | default: | |
4517 | break; | |
f8212f97 | 4518 | } |
2f90b865 | 4519 | |
7c8ae65a AD |
4520 | #ifdef IXGBE_FCOE |
4521 | /* FCoE support exists, always init the FCoE lock */ | |
4522 | spin_lock_init(&adapter->fcoe.lock); | |
4523 | ||
4524 | #endif | |
1fc5f038 AD |
4525 | /* n-tuple support exists, always init our spinlock */ |
4526 | spin_lock_init(&adapter->fdir_perfect_lock); | |
4527 | ||
7a6b6f51 | 4528 | #ifdef CONFIG_IXGBE_DCB |
4de2a022 JF |
4529 | switch (hw->mac.type) { |
4530 | case ixgbe_mac_X540: | |
4531 | adapter->dcb_cfg.num_tcs.pg_tcs = X540_TRAFFIC_CLASS; | |
4532 | adapter->dcb_cfg.num_tcs.pfc_tcs = X540_TRAFFIC_CLASS; | |
4533 | break; | |
4534 | default: | |
4535 | adapter->dcb_cfg.num_tcs.pg_tcs = MAX_TRAFFIC_CLASS; | |
4536 | adapter->dcb_cfg.num_tcs.pfc_tcs = MAX_TRAFFIC_CLASS; | |
4537 | break; | |
4538 | } | |
4539 | ||
2f90b865 AD |
4540 | /* Configure DCB traffic classes */ |
4541 | for (j = 0; j < MAX_TRAFFIC_CLASS; j++) { | |
4542 | tc = &adapter->dcb_cfg.tc_config[j]; | |
4543 | tc->path[DCB_TX_CONFIG].bwg_id = 0; | |
4544 | tc->path[DCB_TX_CONFIG].bwg_percent = 12 + (j & 1); | |
4545 | tc->path[DCB_RX_CONFIG].bwg_id = 0; | |
4546 | tc->path[DCB_RX_CONFIG].bwg_percent = 12 + (j & 1); | |
4547 | tc->dcb_pfc = pfc_disabled; | |
4548 | } | |
4de2a022 JF |
4549 | |
4550 | /* Initialize default user to priority mapping, UPx->TC0 */ | |
4551 | tc = &adapter->dcb_cfg.tc_config[0]; | |
4552 | tc->path[DCB_TX_CONFIG].up_to_tc_bitmap = 0xFF; | |
4553 | tc->path[DCB_RX_CONFIG].up_to_tc_bitmap = 0xFF; | |
4554 | ||
2f90b865 AD |
4555 | adapter->dcb_cfg.bw_percentage[DCB_TX_CONFIG][0] = 100; |
4556 | adapter->dcb_cfg.bw_percentage[DCB_RX_CONFIG][0] = 100; | |
264857b8 | 4557 | adapter->dcb_cfg.pfc_mode_enable = false; |
2f90b865 | 4558 | adapter->dcb_set_bitmap = 0x00; |
3032309b | 4559 | adapter->dcbx_cap = DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_CEE; |
f525c6d2 JF |
4560 | memcpy(&adapter->temp_dcb_cfg, &adapter->dcb_cfg, |
4561 | sizeof(adapter->temp_dcb_cfg)); | |
2f90b865 AD |
4562 | |
4563 | #endif | |
9a799d71 AK |
4564 | |
4565 | /* default flow control settings */ | |
cd7664f6 | 4566 | hw->fc.requested_mode = ixgbe_fc_full; |
71fd570b | 4567 | hw->fc.current_mode = ixgbe_fc_full; /* init for ethtool output */ |
9da712d2 | 4568 | ixgbe_pbthresh_setup(adapter); |
2b9ade93 JB |
4569 | hw->fc.pause_time = IXGBE_DEFAULT_FCPAUSE; |
4570 | hw->fc.send_xon = true; | |
db2adc2d JK |
4571 | hw->fc.disable_fc_autoneg = |
4572 | (ixgbe_device_supports_autoneg_fc(hw) == 0) ? false : true; | |
9a799d71 | 4573 | |
99d74487 AD |
4574 | #ifdef CONFIG_PCI_IOV |
4575 | /* assign number of SR-IOV VFs */ | |
4576 | if (hw->mac.type != ixgbe_mac_82598EB) | |
4577 | adapter->num_vfs = (max_vfs > 63) ? 0 : max_vfs; | |
4578 | ||
4579 | #endif | |
30efa5a3 | 4580 | /* enable itr by default in dynamic mode */ |
f7554a2b | 4581 | adapter->rx_itr_setting = 1; |
f7554a2b | 4582 | adapter->tx_itr_setting = 1; |
30efa5a3 | 4583 | |
30efa5a3 JB |
4584 | /* set default ring sizes */ |
4585 | adapter->tx_ring_count = IXGBE_DEFAULT_TXD; | |
4586 | adapter->rx_ring_count = IXGBE_DEFAULT_RXD; | |
4587 | ||
bd198058 | 4588 | /* set default work limits */ |
59224555 | 4589 | adapter->tx_work_limit = IXGBE_DEFAULT_TX_WORK; |
bd198058 | 4590 | |
9a799d71 | 4591 | /* initialize eeprom parameters */ |
c44ade9e | 4592 | if (ixgbe_init_eeprom_params_generic(hw)) { |
849c4542 | 4593 | e_dev_err("EEPROM initialization failed\n"); |
9a799d71 AK |
4594 | return -EIO; |
4595 | } | |
4596 | ||
9a799d71 AK |
4597 | set_bit(__IXGBE_DOWN, &adapter->state); |
4598 | ||
4599 | return 0; | |
4600 | } | |
4601 | ||
4602 | /** | |
4603 | * ixgbe_setup_tx_resources - allocate Tx resources (Descriptors) | |
3a581073 | 4604 | * @tx_ring: tx descriptor ring (for a specific queue) to setup |
9a799d71 AK |
4605 | * |
4606 | * Return 0 on success, negative on failure | |
4607 | **/ | |
b6ec895e | 4608 | int ixgbe_setup_tx_resources(struct ixgbe_ring *tx_ring) |
9a799d71 | 4609 | { |
b6ec895e | 4610 | struct device *dev = tx_ring->dev; |
de88eeeb AD |
4611 | int orig_node = dev_to_node(dev); |
4612 | int numa_node = -1; | |
9a799d71 AK |
4613 | int size; |
4614 | ||
3a581073 | 4615 | size = sizeof(struct ixgbe_tx_buffer) * tx_ring->count; |
de88eeeb AD |
4616 | |
4617 | if (tx_ring->q_vector) | |
4618 | numa_node = tx_ring->q_vector->numa_node; | |
4619 | ||
4620 | tx_ring->tx_buffer_info = vzalloc_node(size, numa_node); | |
1a6c14a2 | 4621 | if (!tx_ring->tx_buffer_info) |
89bf67f1 | 4622 | tx_ring->tx_buffer_info = vzalloc(size); |
e01c31a5 JB |
4623 | if (!tx_ring->tx_buffer_info) |
4624 | goto err; | |
9a799d71 AK |
4625 | |
4626 | /* round up to nearest 4K */ | |
12207e49 | 4627 | tx_ring->size = tx_ring->count * sizeof(union ixgbe_adv_tx_desc); |
3a581073 | 4628 | tx_ring->size = ALIGN(tx_ring->size, 4096); |
9a799d71 | 4629 | |
de88eeeb AD |
4630 | set_dev_node(dev, numa_node); |
4631 | tx_ring->desc = dma_alloc_coherent(dev, | |
4632 | tx_ring->size, | |
4633 | &tx_ring->dma, | |
4634 | GFP_KERNEL); | |
4635 | set_dev_node(dev, orig_node); | |
4636 | if (!tx_ring->desc) | |
4637 | tx_ring->desc = dma_alloc_coherent(dev, tx_ring->size, | |
4638 | &tx_ring->dma, GFP_KERNEL); | |
e01c31a5 JB |
4639 | if (!tx_ring->desc) |
4640 | goto err; | |
9a799d71 | 4641 | |
3a581073 JB |
4642 | tx_ring->next_to_use = 0; |
4643 | tx_ring->next_to_clean = 0; | |
9a799d71 | 4644 | return 0; |
e01c31a5 JB |
4645 | |
4646 | err: | |
4647 | vfree(tx_ring->tx_buffer_info); | |
4648 | tx_ring->tx_buffer_info = NULL; | |
b6ec895e | 4649 | dev_err(dev, "Unable to allocate memory for the Tx descriptor ring\n"); |
e01c31a5 | 4650 | return -ENOMEM; |
9a799d71 AK |
4651 | } |
4652 | ||
69888674 AD |
4653 | /** |
4654 | * ixgbe_setup_all_tx_resources - allocate all queues Tx resources | |
4655 | * @adapter: board private structure | |
4656 | * | |
4657 | * If this function returns with an error, then it's possible one or | |
4658 | * more of the rings is populated (while the rest are not). It is the | |
4659 | * callers duty to clean those orphaned rings. | |
4660 | * | |
4661 | * Return 0 on success, negative on failure | |
4662 | **/ | |
4663 | static int ixgbe_setup_all_tx_resources(struct ixgbe_adapter *adapter) | |
4664 | { | |
4665 | int i, err = 0; | |
4666 | ||
4667 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
b6ec895e | 4668 | err = ixgbe_setup_tx_resources(adapter->tx_ring[i]); |
69888674 AD |
4669 | if (!err) |
4670 | continue; | |
de3d5b94 | 4671 | |
396e799c | 4672 | e_err(probe, "Allocation for Tx Queue %u failed\n", i); |
de3d5b94 | 4673 | goto err_setup_tx; |
69888674 AD |
4674 | } |
4675 | ||
de3d5b94 AD |
4676 | return 0; |
4677 | err_setup_tx: | |
4678 | /* rewind the index freeing the rings as we go */ | |
4679 | while (i--) | |
4680 | ixgbe_free_tx_resources(adapter->tx_ring[i]); | |
69888674 AD |
4681 | return err; |
4682 | } | |
4683 | ||
9a799d71 AK |
4684 | /** |
4685 | * ixgbe_setup_rx_resources - allocate Rx resources (Descriptors) | |
3a581073 | 4686 | * @rx_ring: rx descriptor ring (for a specific queue) to setup |
9a799d71 AK |
4687 | * |
4688 | * Returns 0 on success, negative on failure | |
4689 | **/ | |
b6ec895e | 4690 | int ixgbe_setup_rx_resources(struct ixgbe_ring *rx_ring) |
9a799d71 | 4691 | { |
b6ec895e | 4692 | struct device *dev = rx_ring->dev; |
de88eeeb AD |
4693 | int orig_node = dev_to_node(dev); |
4694 | int numa_node = -1; | |
021230d4 | 4695 | int size; |
9a799d71 | 4696 | |
3a581073 | 4697 | size = sizeof(struct ixgbe_rx_buffer) * rx_ring->count; |
de88eeeb AD |
4698 | |
4699 | if (rx_ring->q_vector) | |
4700 | numa_node = rx_ring->q_vector->numa_node; | |
4701 | ||
4702 | rx_ring->rx_buffer_info = vzalloc_node(size, numa_node); | |
1a6c14a2 | 4703 | if (!rx_ring->rx_buffer_info) |
89bf67f1 | 4704 | rx_ring->rx_buffer_info = vzalloc(size); |
b6ec895e AD |
4705 | if (!rx_ring->rx_buffer_info) |
4706 | goto err; | |
9a799d71 | 4707 | |
9a799d71 | 4708 | /* Round up to nearest 4K */ |
3a581073 JB |
4709 | rx_ring->size = rx_ring->count * sizeof(union ixgbe_adv_rx_desc); |
4710 | rx_ring->size = ALIGN(rx_ring->size, 4096); | |
9a799d71 | 4711 | |
de88eeeb AD |
4712 | set_dev_node(dev, numa_node); |
4713 | rx_ring->desc = dma_alloc_coherent(dev, | |
4714 | rx_ring->size, | |
4715 | &rx_ring->dma, | |
4716 | GFP_KERNEL); | |
4717 | set_dev_node(dev, orig_node); | |
4718 | if (!rx_ring->desc) | |
4719 | rx_ring->desc = dma_alloc_coherent(dev, rx_ring->size, | |
4720 | &rx_ring->dma, GFP_KERNEL); | |
b6ec895e AD |
4721 | if (!rx_ring->desc) |
4722 | goto err; | |
9a799d71 | 4723 | |
3a581073 JB |
4724 | rx_ring->next_to_clean = 0; |
4725 | rx_ring->next_to_use = 0; | |
9a799d71 AK |
4726 | |
4727 | return 0; | |
b6ec895e AD |
4728 | err: |
4729 | vfree(rx_ring->rx_buffer_info); | |
4730 | rx_ring->rx_buffer_info = NULL; | |
4731 | dev_err(dev, "Unable to allocate memory for the Rx descriptor ring\n"); | |
177db6ff | 4732 | return -ENOMEM; |
9a799d71 AK |
4733 | } |
4734 | ||
69888674 AD |
4735 | /** |
4736 | * ixgbe_setup_all_rx_resources - allocate all queues Rx resources | |
4737 | * @adapter: board private structure | |
4738 | * | |
4739 | * If this function returns with an error, then it's possible one or | |
4740 | * more of the rings is populated (while the rest are not). It is the | |
4741 | * callers duty to clean those orphaned rings. | |
4742 | * | |
4743 | * Return 0 on success, negative on failure | |
4744 | **/ | |
69888674 AD |
4745 | static int ixgbe_setup_all_rx_resources(struct ixgbe_adapter *adapter) |
4746 | { | |
4747 | int i, err = 0; | |
4748 | ||
4749 | for (i = 0; i < adapter->num_rx_queues; i++) { | |
b6ec895e | 4750 | err = ixgbe_setup_rx_resources(adapter->rx_ring[i]); |
69888674 AD |
4751 | if (!err) |
4752 | continue; | |
de3d5b94 | 4753 | |
396e799c | 4754 | e_err(probe, "Allocation for Rx Queue %u failed\n", i); |
de3d5b94 | 4755 | goto err_setup_rx; |
69888674 AD |
4756 | } |
4757 | ||
7c8ae65a AD |
4758 | #ifdef IXGBE_FCOE |
4759 | err = ixgbe_setup_fcoe_ddp_resources(adapter); | |
4760 | if (!err) | |
4761 | #endif | |
4762 | return 0; | |
de3d5b94 AD |
4763 | err_setup_rx: |
4764 | /* rewind the index freeing the rings as we go */ | |
4765 | while (i--) | |
4766 | ixgbe_free_rx_resources(adapter->rx_ring[i]); | |
69888674 AD |
4767 | return err; |
4768 | } | |
4769 | ||
9a799d71 AK |
4770 | /** |
4771 | * ixgbe_free_tx_resources - Free Tx Resources per Queue | |
9a799d71 AK |
4772 | * @tx_ring: Tx descriptor ring for a specific queue |
4773 | * | |
4774 | * Free all transmit software resources | |
4775 | **/ | |
b6ec895e | 4776 | void ixgbe_free_tx_resources(struct ixgbe_ring *tx_ring) |
9a799d71 | 4777 | { |
b6ec895e | 4778 | ixgbe_clean_tx_ring(tx_ring); |
9a799d71 AK |
4779 | |
4780 | vfree(tx_ring->tx_buffer_info); | |
4781 | tx_ring->tx_buffer_info = NULL; | |
4782 | ||
b6ec895e AD |
4783 | /* if not set, then don't free */ |
4784 | if (!tx_ring->desc) | |
4785 | return; | |
4786 | ||
4787 | dma_free_coherent(tx_ring->dev, tx_ring->size, | |
4788 | tx_ring->desc, tx_ring->dma); | |
9a799d71 AK |
4789 | |
4790 | tx_ring->desc = NULL; | |
4791 | } | |
4792 | ||
4793 | /** | |
4794 | * ixgbe_free_all_tx_resources - Free Tx Resources for All Queues | |
4795 | * @adapter: board private structure | |
4796 | * | |
4797 | * Free all transmit software resources | |
4798 | **/ | |
4799 | static void ixgbe_free_all_tx_resources(struct ixgbe_adapter *adapter) | |
4800 | { | |
4801 | int i; | |
4802 | ||
4803 | for (i = 0; i < adapter->num_tx_queues; i++) | |
4a0b9ca0 | 4804 | if (adapter->tx_ring[i]->desc) |
b6ec895e | 4805 | ixgbe_free_tx_resources(adapter->tx_ring[i]); |
9a799d71 AK |
4806 | } |
4807 | ||
4808 | /** | |
b4617240 | 4809 | * ixgbe_free_rx_resources - Free Rx Resources |
9a799d71 AK |
4810 | * @rx_ring: ring to clean the resources from |
4811 | * | |
4812 | * Free all receive software resources | |
4813 | **/ | |
b6ec895e | 4814 | void ixgbe_free_rx_resources(struct ixgbe_ring *rx_ring) |
9a799d71 | 4815 | { |
b6ec895e | 4816 | ixgbe_clean_rx_ring(rx_ring); |
9a799d71 AK |
4817 | |
4818 | vfree(rx_ring->rx_buffer_info); | |
4819 | rx_ring->rx_buffer_info = NULL; | |
4820 | ||
b6ec895e AD |
4821 | /* if not set, then don't free */ |
4822 | if (!rx_ring->desc) | |
4823 | return; | |
4824 | ||
4825 | dma_free_coherent(rx_ring->dev, rx_ring->size, | |
4826 | rx_ring->desc, rx_ring->dma); | |
9a799d71 AK |
4827 | |
4828 | rx_ring->desc = NULL; | |
4829 | } | |
4830 | ||
4831 | /** | |
4832 | * ixgbe_free_all_rx_resources - Free Rx Resources for All Queues | |
4833 | * @adapter: board private structure | |
4834 | * | |
4835 | * Free all receive software resources | |
4836 | **/ | |
4837 | static void ixgbe_free_all_rx_resources(struct ixgbe_adapter *adapter) | |
4838 | { | |
4839 | int i; | |
4840 | ||
7c8ae65a AD |
4841 | #ifdef IXGBE_FCOE |
4842 | ixgbe_free_fcoe_ddp_resources(adapter); | |
4843 | ||
4844 | #endif | |
9a799d71 | 4845 | for (i = 0; i < adapter->num_rx_queues; i++) |
4a0b9ca0 | 4846 | if (adapter->rx_ring[i]->desc) |
b6ec895e | 4847 | ixgbe_free_rx_resources(adapter->rx_ring[i]); |
9a799d71 AK |
4848 | } |
4849 | ||
9a799d71 AK |
4850 | /** |
4851 | * ixgbe_change_mtu - Change the Maximum Transfer Unit | |
4852 | * @netdev: network interface device structure | |
4853 | * @new_mtu: new value for maximum frame size | |
4854 | * | |
4855 | * Returns 0 on success, negative on failure | |
4856 | **/ | |
4857 | static int ixgbe_change_mtu(struct net_device *netdev, int new_mtu) | |
4858 | { | |
4859 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
4860 | int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN; | |
4861 | ||
42c783c5 | 4862 | /* MTU < 68 is an error and causes problems on some kernels */ |
655309e9 AD |
4863 | if ((new_mtu < 68) || (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE)) |
4864 | return -EINVAL; | |
4865 | ||
4866 | /* | |
872844dd AD |
4867 | * For 82599EB we cannot allow legacy VFs to enable their receive |
4868 | * paths when MTU greater than 1500 is configured. So display a | |
4869 | * warning that legacy VFs will be disabled. | |
655309e9 AD |
4870 | */ |
4871 | if ((adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) && | |
4872 | (adapter->hw.mac.type == ixgbe_mac_82599EB) && | |
c560451c | 4873 | (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN))) |
872844dd | 4874 | e_warn(probe, "Setting MTU > 1500 will disable legacy VFs\n"); |
9a799d71 | 4875 | |
396e799c | 4876 | e_info(probe, "changing MTU from %d to %d\n", netdev->mtu, new_mtu); |
655309e9 | 4877 | |
021230d4 | 4878 | /* must set new MTU before calling down or up */ |
9a799d71 AK |
4879 | netdev->mtu = new_mtu; |
4880 | ||
d4f80882 AV |
4881 | if (netif_running(netdev)) |
4882 | ixgbe_reinit_locked(adapter); | |
9a799d71 AK |
4883 | |
4884 | return 0; | |
4885 | } | |
4886 | ||
4887 | /** | |
4888 | * ixgbe_open - Called when a network interface is made active | |
4889 | * @netdev: network interface device structure | |
4890 | * | |
4891 | * Returns 0 on success, negative value on failure | |
4892 | * | |
4893 | * The open entry point is called when a network interface is made | |
4894 | * active by the system (IFF_UP). At this point all resources needed | |
4895 | * for transmit and receive operations are allocated, the interrupt | |
4896 | * handler is registered with the OS, the watchdog timer is started, | |
4897 | * and the stack is notified that the interface is ready. | |
4898 | **/ | |
4899 | static int ixgbe_open(struct net_device *netdev) | |
4900 | { | |
4901 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
4902 | int err; | |
4bebfaa5 AK |
4903 | |
4904 | /* disallow open during test */ | |
4905 | if (test_bit(__IXGBE_TESTING, &adapter->state)) | |
4906 | return -EBUSY; | |
9a799d71 | 4907 | |
54386467 JB |
4908 | netif_carrier_off(netdev); |
4909 | ||
9a799d71 AK |
4910 | /* allocate transmit descriptors */ |
4911 | err = ixgbe_setup_all_tx_resources(adapter); | |
4912 | if (err) | |
4913 | goto err_setup_tx; | |
4914 | ||
9a799d71 AK |
4915 | /* allocate receive descriptors */ |
4916 | err = ixgbe_setup_all_rx_resources(adapter); | |
4917 | if (err) | |
4918 | goto err_setup_rx; | |
4919 | ||
4920 | ixgbe_configure(adapter); | |
4921 | ||
021230d4 | 4922 | err = ixgbe_request_irq(adapter); |
9a799d71 AK |
4923 | if (err) |
4924 | goto err_req_irq; | |
4925 | ||
ac802f5d AD |
4926 | /* Notify the stack of the actual queue counts. */ |
4927 | err = netif_set_real_num_tx_queues(netdev, | |
4928 | adapter->num_rx_pools > 1 ? 1 : | |
4929 | adapter->num_tx_queues); | |
4930 | if (err) | |
4931 | goto err_set_queues; | |
4932 | ||
4933 | ||
4934 | err = netif_set_real_num_rx_queues(netdev, | |
4935 | adapter->num_rx_pools > 1 ? 1 : | |
4936 | adapter->num_rx_queues); | |
4937 | if (err) | |
4938 | goto err_set_queues; | |
4939 | ||
1a71ab24 | 4940 | ixgbe_ptp_init(adapter); |
1a71ab24 | 4941 | |
c7ccde0f | 4942 | ixgbe_up_complete(adapter); |
9a799d71 AK |
4943 | |
4944 | return 0; | |
4945 | ||
ac802f5d AD |
4946 | err_set_queues: |
4947 | ixgbe_free_irq(adapter); | |
9a799d71 | 4948 | err_req_irq: |
a20a1199 | 4949 | ixgbe_free_all_rx_resources(adapter); |
de3d5b94 | 4950 | err_setup_rx: |
a20a1199 | 4951 | ixgbe_free_all_tx_resources(adapter); |
de3d5b94 | 4952 | err_setup_tx: |
9a799d71 AK |
4953 | ixgbe_reset(adapter); |
4954 | ||
4955 | return err; | |
4956 | } | |
4957 | ||
4958 | /** | |
4959 | * ixgbe_close - Disables a network interface | |
4960 | * @netdev: network interface device structure | |
4961 | * | |
4962 | * Returns 0, this is not allowed to fail | |
4963 | * | |
4964 | * The close entry point is called when an interface is de-activated | |
4965 | * by the OS. The hardware is still under the drivers control, but | |
4966 | * needs to be disabled. A global MAC reset is issued to stop the | |
4967 | * hardware, and all transmit and receive resources are freed. | |
4968 | **/ | |
4969 | static int ixgbe_close(struct net_device *netdev) | |
4970 | { | |
4971 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
9a799d71 | 4972 | |
1a71ab24 | 4973 | ixgbe_ptp_stop(adapter); |
1a71ab24 | 4974 | |
9a799d71 AK |
4975 | ixgbe_down(adapter); |
4976 | ixgbe_free_irq(adapter); | |
4977 | ||
e4911d57 AD |
4978 | ixgbe_fdir_filter_exit(adapter); |
4979 | ||
9a799d71 AK |
4980 | ixgbe_free_all_tx_resources(adapter); |
4981 | ixgbe_free_all_rx_resources(adapter); | |
4982 | ||
5eba3699 | 4983 | ixgbe_release_hw_control(adapter); |
9a799d71 AK |
4984 | |
4985 | return 0; | |
4986 | } | |
4987 | ||
b3c8b4ba AD |
4988 | #ifdef CONFIG_PM |
4989 | static int ixgbe_resume(struct pci_dev *pdev) | |
4990 | { | |
c60fbb00 AD |
4991 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
4992 | struct net_device *netdev = adapter->netdev; | |
b3c8b4ba AD |
4993 | u32 err; |
4994 | ||
4995 | pci_set_power_state(pdev, PCI_D0); | |
4996 | pci_restore_state(pdev); | |
656ab817 DS |
4997 | /* |
4998 | * pci_restore_state clears dev->state_saved so call | |
4999 | * pci_save_state to restore it. | |
5000 | */ | |
5001 | pci_save_state(pdev); | |
9ce77666 | 5002 | |
5003 | err = pci_enable_device_mem(pdev); | |
b3c8b4ba | 5004 | if (err) { |
849c4542 | 5005 | e_dev_err("Cannot enable PCI device from suspend\n"); |
b3c8b4ba AD |
5006 | return err; |
5007 | } | |
5008 | pci_set_master(pdev); | |
5009 | ||
dd4d8ca6 | 5010 | pci_wake_from_d3(pdev, false); |
b3c8b4ba | 5011 | |
b3c8b4ba AD |
5012 | ixgbe_reset(adapter); |
5013 | ||
495dce12 WJP |
5014 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); |
5015 | ||
ac802f5d AD |
5016 | rtnl_lock(); |
5017 | err = ixgbe_init_interrupt_scheme(adapter); | |
5018 | if (!err && netif_running(netdev)) | |
c60fbb00 | 5019 | err = ixgbe_open(netdev); |
ac802f5d AD |
5020 | |
5021 | rtnl_unlock(); | |
5022 | ||
5023 | if (err) | |
5024 | return err; | |
b3c8b4ba AD |
5025 | |
5026 | netif_device_attach(netdev); | |
5027 | ||
5028 | return 0; | |
5029 | } | |
b3c8b4ba | 5030 | #endif /* CONFIG_PM */ |
9d8d05ae RW |
5031 | |
5032 | static int __ixgbe_shutdown(struct pci_dev *pdev, bool *enable_wake) | |
b3c8b4ba | 5033 | { |
c60fbb00 AD |
5034 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
5035 | struct net_device *netdev = adapter->netdev; | |
e8e26350 PW |
5036 | struct ixgbe_hw *hw = &adapter->hw; |
5037 | u32 ctrl, fctrl; | |
5038 | u32 wufc = adapter->wol; | |
b3c8b4ba AD |
5039 | #ifdef CONFIG_PM |
5040 | int retval = 0; | |
5041 | #endif | |
5042 | ||
5043 | netif_device_detach(netdev); | |
5044 | ||
5045 | if (netif_running(netdev)) { | |
ab6039a7 | 5046 | rtnl_lock(); |
b3c8b4ba AD |
5047 | ixgbe_down(adapter); |
5048 | ixgbe_free_irq(adapter); | |
5049 | ixgbe_free_all_tx_resources(adapter); | |
5050 | ixgbe_free_all_rx_resources(adapter); | |
ab6039a7 | 5051 | rtnl_unlock(); |
b3c8b4ba | 5052 | } |
b3c8b4ba | 5053 | |
5f5ae6fc AD |
5054 | ixgbe_clear_interrupt_scheme(adapter); |
5055 | ||
b3c8b4ba AD |
5056 | #ifdef CONFIG_PM |
5057 | retval = pci_save_state(pdev); | |
5058 | if (retval) | |
5059 | return retval; | |
4df10466 | 5060 | |
b3c8b4ba | 5061 | #endif |
e8e26350 PW |
5062 | if (wufc) { |
5063 | ixgbe_set_rx_mode(netdev); | |
b3c8b4ba | 5064 | |
ec74a471 ET |
5065 | /* enable the optics for 82599 SFP+ fiber as we can WoL */ |
5066 | if (hw->mac.ops.enable_tx_laser) | |
c509e754 DS |
5067 | hw->mac.ops.enable_tx_laser(hw); |
5068 | ||
e8e26350 PW |
5069 | /* turn on all-multi mode if wake on multicast is enabled */ |
5070 | if (wufc & IXGBE_WUFC_MC) { | |
5071 | fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL); | |
5072 | fctrl |= IXGBE_FCTRL_MPE; | |
5073 | IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl); | |
5074 | } | |
5075 | ||
5076 | ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL); | |
5077 | ctrl |= IXGBE_CTRL_GIO_DIS; | |
5078 | IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl); | |
5079 | ||
5080 | IXGBE_WRITE_REG(hw, IXGBE_WUFC, wufc); | |
5081 | } else { | |
5082 | IXGBE_WRITE_REG(hw, IXGBE_WUC, 0); | |
5083 | IXGBE_WRITE_REG(hw, IXGBE_WUFC, 0); | |
5084 | } | |
5085 | ||
bd508178 AD |
5086 | switch (hw->mac.type) { |
5087 | case ixgbe_mac_82598EB: | |
dd4d8ca6 | 5088 | pci_wake_from_d3(pdev, false); |
bd508178 AD |
5089 | break; |
5090 | case ixgbe_mac_82599EB: | |
b93a2226 | 5091 | case ixgbe_mac_X540: |
bd508178 AD |
5092 | pci_wake_from_d3(pdev, !!wufc); |
5093 | break; | |
5094 | default: | |
5095 | break; | |
5096 | } | |
b3c8b4ba | 5097 | |
9d8d05ae RW |
5098 | *enable_wake = !!wufc; |
5099 | ||
b3c8b4ba AD |
5100 | ixgbe_release_hw_control(adapter); |
5101 | ||
5102 | pci_disable_device(pdev); | |
5103 | ||
9d8d05ae RW |
5104 | return 0; |
5105 | } | |
5106 | ||
5107 | #ifdef CONFIG_PM | |
5108 | static int ixgbe_suspend(struct pci_dev *pdev, pm_message_t state) | |
5109 | { | |
5110 | int retval; | |
5111 | bool wake; | |
5112 | ||
5113 | retval = __ixgbe_shutdown(pdev, &wake); | |
5114 | if (retval) | |
5115 | return retval; | |
5116 | ||
5117 | if (wake) { | |
5118 | pci_prepare_to_sleep(pdev); | |
5119 | } else { | |
5120 | pci_wake_from_d3(pdev, false); | |
5121 | pci_set_power_state(pdev, PCI_D3hot); | |
5122 | } | |
b3c8b4ba AD |
5123 | |
5124 | return 0; | |
5125 | } | |
9d8d05ae | 5126 | #endif /* CONFIG_PM */ |
b3c8b4ba AD |
5127 | |
5128 | static void ixgbe_shutdown(struct pci_dev *pdev) | |
5129 | { | |
9d8d05ae RW |
5130 | bool wake; |
5131 | ||
5132 | __ixgbe_shutdown(pdev, &wake); | |
5133 | ||
5134 | if (system_state == SYSTEM_POWER_OFF) { | |
5135 | pci_wake_from_d3(pdev, wake); | |
5136 | pci_set_power_state(pdev, PCI_D3hot); | |
5137 | } | |
b3c8b4ba AD |
5138 | } |
5139 | ||
9a799d71 AK |
5140 | /** |
5141 | * ixgbe_update_stats - Update the board statistics counters. | |
5142 | * @adapter: board private structure | |
5143 | **/ | |
5144 | void ixgbe_update_stats(struct ixgbe_adapter *adapter) | |
5145 | { | |
2d86f139 | 5146 | struct net_device *netdev = adapter->netdev; |
9a799d71 | 5147 | struct ixgbe_hw *hw = &adapter->hw; |
5b7da515 | 5148 | struct ixgbe_hw_stats *hwstats = &adapter->stats; |
6f11eef7 AV |
5149 | u64 total_mpc = 0; |
5150 | u32 i, missed_rx = 0, mpc, bprc, lxon, lxoff, xon_off_tot; | |
5b7da515 AD |
5151 | u64 non_eop_descs = 0, restart_queue = 0, tx_busy = 0; |
5152 | u64 alloc_rx_page_failed = 0, alloc_rx_buff_failed = 0; | |
8a0da21b | 5153 | u64 bytes = 0, packets = 0, hw_csum_rx_error = 0; |
9a799d71 | 5154 | |
d08935c2 DS |
5155 | if (test_bit(__IXGBE_DOWN, &adapter->state) || |
5156 | test_bit(__IXGBE_RESETTING, &adapter->state)) | |
5157 | return; | |
5158 | ||
94b982b2 | 5159 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) { |
f8212f97 | 5160 | u64 rsc_count = 0; |
94b982b2 | 5161 | u64 rsc_flush = 0; |
94b982b2 | 5162 | for (i = 0; i < adapter->num_rx_queues; i++) { |
5b7da515 AD |
5163 | rsc_count += adapter->rx_ring[i]->rx_stats.rsc_count; |
5164 | rsc_flush += adapter->rx_ring[i]->rx_stats.rsc_flush; | |
94b982b2 MC |
5165 | } |
5166 | adapter->rsc_total_count = rsc_count; | |
5167 | adapter->rsc_total_flush = rsc_flush; | |
d51019a4 PW |
5168 | } |
5169 | ||
5b7da515 AD |
5170 | for (i = 0; i < adapter->num_rx_queues; i++) { |
5171 | struct ixgbe_ring *rx_ring = adapter->rx_ring[i]; | |
5172 | non_eop_descs += rx_ring->rx_stats.non_eop_descs; | |
5173 | alloc_rx_page_failed += rx_ring->rx_stats.alloc_rx_page_failed; | |
5174 | alloc_rx_buff_failed += rx_ring->rx_stats.alloc_rx_buff_failed; | |
8a0da21b | 5175 | hw_csum_rx_error += rx_ring->rx_stats.csum_err; |
5b7da515 AD |
5176 | bytes += rx_ring->stats.bytes; |
5177 | packets += rx_ring->stats.packets; | |
5178 | } | |
5179 | adapter->non_eop_descs = non_eop_descs; | |
5180 | adapter->alloc_rx_page_failed = alloc_rx_page_failed; | |
5181 | adapter->alloc_rx_buff_failed = alloc_rx_buff_failed; | |
8a0da21b | 5182 | adapter->hw_csum_rx_error = hw_csum_rx_error; |
5b7da515 AD |
5183 | netdev->stats.rx_bytes = bytes; |
5184 | netdev->stats.rx_packets = packets; | |
5185 | ||
5186 | bytes = 0; | |
5187 | packets = 0; | |
7ca3bc58 | 5188 | /* gather some stats to the adapter struct that are per queue */ |
5b7da515 AD |
5189 | for (i = 0; i < adapter->num_tx_queues; i++) { |
5190 | struct ixgbe_ring *tx_ring = adapter->tx_ring[i]; | |
5191 | restart_queue += tx_ring->tx_stats.restart_queue; | |
5192 | tx_busy += tx_ring->tx_stats.tx_busy; | |
5193 | bytes += tx_ring->stats.bytes; | |
5194 | packets += tx_ring->stats.packets; | |
5195 | } | |
eb985f09 | 5196 | adapter->restart_queue = restart_queue; |
5b7da515 AD |
5197 | adapter->tx_busy = tx_busy; |
5198 | netdev->stats.tx_bytes = bytes; | |
5199 | netdev->stats.tx_packets = packets; | |
7ca3bc58 | 5200 | |
7ca647bd | 5201 | hwstats->crcerrs += IXGBE_READ_REG(hw, IXGBE_CRCERRS); |
1a70db4b ET |
5202 | |
5203 | /* 8 register reads */ | |
6f11eef7 AV |
5204 | for (i = 0; i < 8; i++) { |
5205 | /* for packet buffers not used, the register should read 0 */ | |
5206 | mpc = IXGBE_READ_REG(hw, IXGBE_MPC(i)); | |
5207 | missed_rx += mpc; | |
7ca647bd JP |
5208 | hwstats->mpc[i] += mpc; |
5209 | total_mpc += hwstats->mpc[i]; | |
1a70db4b ET |
5210 | hwstats->pxontxc[i] += IXGBE_READ_REG(hw, IXGBE_PXONTXC(i)); |
5211 | hwstats->pxofftxc[i] += IXGBE_READ_REG(hw, IXGBE_PXOFFTXC(i)); | |
bd508178 AD |
5212 | switch (hw->mac.type) { |
5213 | case ixgbe_mac_82598EB: | |
1a70db4b ET |
5214 | hwstats->rnbc[i] += IXGBE_READ_REG(hw, IXGBE_RNBC(i)); |
5215 | hwstats->qbtc[i] += IXGBE_READ_REG(hw, IXGBE_QBTC(i)); | |
5216 | hwstats->qbrc[i] += IXGBE_READ_REG(hw, IXGBE_QBRC(i)); | |
7ca647bd JP |
5217 | hwstats->pxonrxc[i] += |
5218 | IXGBE_READ_REG(hw, IXGBE_PXONRXC(i)); | |
bd508178 AD |
5219 | break; |
5220 | case ixgbe_mac_82599EB: | |
b93a2226 | 5221 | case ixgbe_mac_X540: |
bd508178 AD |
5222 | hwstats->pxonrxc[i] += |
5223 | IXGBE_READ_REG(hw, IXGBE_PXONRXCNT(i)); | |
bd508178 AD |
5224 | break; |
5225 | default: | |
5226 | break; | |
e8e26350 | 5227 | } |
6f11eef7 | 5228 | } |
1a70db4b ET |
5229 | |
5230 | /*16 register reads */ | |
5231 | for (i = 0; i < 16; i++) { | |
5232 | hwstats->qptc[i] += IXGBE_READ_REG(hw, IXGBE_QPTC(i)); | |
5233 | hwstats->qprc[i] += IXGBE_READ_REG(hw, IXGBE_QPRC(i)); | |
5234 | if ((hw->mac.type == ixgbe_mac_82599EB) || | |
5235 | (hw->mac.type == ixgbe_mac_X540)) { | |
5236 | hwstats->qbtc[i] += IXGBE_READ_REG(hw, IXGBE_QBTC_L(i)); | |
5237 | IXGBE_READ_REG(hw, IXGBE_QBTC_H(i)); /* to clear */ | |
5238 | hwstats->qbrc[i] += IXGBE_READ_REG(hw, IXGBE_QBRC_L(i)); | |
5239 | IXGBE_READ_REG(hw, IXGBE_QBRC_H(i)); /* to clear */ | |
5240 | } | |
5241 | } | |
5242 | ||
7ca647bd | 5243 | hwstats->gprc += IXGBE_READ_REG(hw, IXGBE_GPRC); |
6f11eef7 | 5244 | /* work around hardware counting issue */ |
7ca647bd | 5245 | hwstats->gprc -= missed_rx; |
6f11eef7 | 5246 | |
c84d324c JF |
5247 | ixgbe_update_xoff_received(adapter); |
5248 | ||
6f11eef7 | 5249 | /* 82598 hardware only has a 32 bit counter in the high register */ |
bd508178 AD |
5250 | switch (hw->mac.type) { |
5251 | case ixgbe_mac_82598EB: | |
5252 | hwstats->lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXC); | |
bd508178 AD |
5253 | hwstats->gorc += IXGBE_READ_REG(hw, IXGBE_GORCH); |
5254 | hwstats->gotc += IXGBE_READ_REG(hw, IXGBE_GOTCH); | |
5255 | hwstats->tor += IXGBE_READ_REG(hw, IXGBE_TORH); | |
5256 | break; | |
b93a2226 | 5257 | case ixgbe_mac_X540: |
58f6bcf9 ET |
5258 | /* OS2BMC stats are X540 only*/ |
5259 | hwstats->o2bgptc += IXGBE_READ_REG(hw, IXGBE_O2BGPTC); | |
5260 | hwstats->o2bspc += IXGBE_READ_REG(hw, IXGBE_O2BSPC); | |
5261 | hwstats->b2ospc += IXGBE_READ_REG(hw, IXGBE_B2OSPC); | |
5262 | hwstats->b2ogprc += IXGBE_READ_REG(hw, IXGBE_B2OGPRC); | |
5263 | case ixgbe_mac_82599EB: | |
a4d4f629 AD |
5264 | for (i = 0; i < 16; i++) |
5265 | adapter->hw_rx_no_dma_resources += | |
5266 | IXGBE_READ_REG(hw, IXGBE_QPRDC(i)); | |
7ca647bd | 5267 | hwstats->gorc += IXGBE_READ_REG(hw, IXGBE_GORCL); |
bd508178 | 5268 | IXGBE_READ_REG(hw, IXGBE_GORCH); /* to clear */ |
7ca647bd | 5269 | hwstats->gotc += IXGBE_READ_REG(hw, IXGBE_GOTCL); |
bd508178 | 5270 | IXGBE_READ_REG(hw, IXGBE_GOTCH); /* to clear */ |
7ca647bd | 5271 | hwstats->tor += IXGBE_READ_REG(hw, IXGBE_TORL); |
bd508178 | 5272 | IXGBE_READ_REG(hw, IXGBE_TORH); /* to clear */ |
7ca647bd | 5273 | hwstats->lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXCNT); |
7ca647bd JP |
5274 | hwstats->fdirmatch += IXGBE_READ_REG(hw, IXGBE_FDIRMATCH); |
5275 | hwstats->fdirmiss += IXGBE_READ_REG(hw, IXGBE_FDIRMISS); | |
6d45522c | 5276 | #ifdef IXGBE_FCOE |
7ca647bd JP |
5277 | hwstats->fccrc += IXGBE_READ_REG(hw, IXGBE_FCCRC); |
5278 | hwstats->fcoerpdc += IXGBE_READ_REG(hw, IXGBE_FCOERPDC); | |
5279 | hwstats->fcoeprc += IXGBE_READ_REG(hw, IXGBE_FCOEPRC); | |
5280 | hwstats->fcoeptc += IXGBE_READ_REG(hw, IXGBE_FCOEPTC); | |
5281 | hwstats->fcoedwrc += IXGBE_READ_REG(hw, IXGBE_FCOEDWRC); | |
5282 | hwstats->fcoedwtc += IXGBE_READ_REG(hw, IXGBE_FCOEDWTC); | |
7b859ebc | 5283 | /* Add up per cpu counters for total ddp aloc fail */ |
5a1ee270 AD |
5284 | if (adapter->fcoe.ddp_pool) { |
5285 | struct ixgbe_fcoe *fcoe = &adapter->fcoe; | |
5286 | struct ixgbe_fcoe_ddp_pool *ddp_pool; | |
5287 | unsigned int cpu; | |
5288 | u64 noddp = 0, noddp_ext_buff = 0; | |
7b859ebc | 5289 | for_each_possible_cpu(cpu) { |
5a1ee270 AD |
5290 | ddp_pool = per_cpu_ptr(fcoe->ddp_pool, cpu); |
5291 | noddp += ddp_pool->noddp; | |
5292 | noddp_ext_buff += ddp_pool->noddp_ext_buff; | |
7b859ebc | 5293 | } |
5a1ee270 AD |
5294 | hwstats->fcoe_noddp = noddp; |
5295 | hwstats->fcoe_noddp_ext_buff = noddp_ext_buff; | |
7b859ebc | 5296 | } |
6d45522c | 5297 | #endif /* IXGBE_FCOE */ |
bd508178 AD |
5298 | break; |
5299 | default: | |
5300 | break; | |
e8e26350 | 5301 | } |
9a799d71 | 5302 | bprc = IXGBE_READ_REG(hw, IXGBE_BPRC); |
7ca647bd JP |
5303 | hwstats->bprc += bprc; |
5304 | hwstats->mprc += IXGBE_READ_REG(hw, IXGBE_MPRC); | |
e8e26350 | 5305 | if (hw->mac.type == ixgbe_mac_82598EB) |
7ca647bd JP |
5306 | hwstats->mprc -= bprc; |
5307 | hwstats->roc += IXGBE_READ_REG(hw, IXGBE_ROC); | |
5308 | hwstats->prc64 += IXGBE_READ_REG(hw, IXGBE_PRC64); | |
5309 | hwstats->prc127 += IXGBE_READ_REG(hw, IXGBE_PRC127); | |
5310 | hwstats->prc255 += IXGBE_READ_REG(hw, IXGBE_PRC255); | |
5311 | hwstats->prc511 += IXGBE_READ_REG(hw, IXGBE_PRC511); | |
5312 | hwstats->prc1023 += IXGBE_READ_REG(hw, IXGBE_PRC1023); | |
5313 | hwstats->prc1522 += IXGBE_READ_REG(hw, IXGBE_PRC1522); | |
5314 | hwstats->rlec += IXGBE_READ_REG(hw, IXGBE_RLEC); | |
6f11eef7 | 5315 | lxon = IXGBE_READ_REG(hw, IXGBE_LXONTXC); |
7ca647bd | 5316 | hwstats->lxontxc += lxon; |
6f11eef7 | 5317 | lxoff = IXGBE_READ_REG(hw, IXGBE_LXOFFTXC); |
7ca647bd | 5318 | hwstats->lxofftxc += lxoff; |
7ca647bd JP |
5319 | hwstats->gptc += IXGBE_READ_REG(hw, IXGBE_GPTC); |
5320 | hwstats->mptc += IXGBE_READ_REG(hw, IXGBE_MPTC); | |
6f11eef7 AV |
5321 | /* |
5322 | * 82598 errata - tx of flow control packets is included in tx counters | |
5323 | */ | |
5324 | xon_off_tot = lxon + lxoff; | |
7ca647bd JP |
5325 | hwstats->gptc -= xon_off_tot; |
5326 | hwstats->mptc -= xon_off_tot; | |
5327 | hwstats->gotc -= (xon_off_tot * (ETH_ZLEN + ETH_FCS_LEN)); | |
5328 | hwstats->ruc += IXGBE_READ_REG(hw, IXGBE_RUC); | |
5329 | hwstats->rfc += IXGBE_READ_REG(hw, IXGBE_RFC); | |
5330 | hwstats->rjc += IXGBE_READ_REG(hw, IXGBE_RJC); | |
5331 | hwstats->tpr += IXGBE_READ_REG(hw, IXGBE_TPR); | |
5332 | hwstats->ptc64 += IXGBE_READ_REG(hw, IXGBE_PTC64); | |
5333 | hwstats->ptc64 -= xon_off_tot; | |
5334 | hwstats->ptc127 += IXGBE_READ_REG(hw, IXGBE_PTC127); | |
5335 | hwstats->ptc255 += IXGBE_READ_REG(hw, IXGBE_PTC255); | |
5336 | hwstats->ptc511 += IXGBE_READ_REG(hw, IXGBE_PTC511); | |
5337 | hwstats->ptc1023 += IXGBE_READ_REG(hw, IXGBE_PTC1023); | |
5338 | hwstats->ptc1522 += IXGBE_READ_REG(hw, IXGBE_PTC1522); | |
5339 | hwstats->bptc += IXGBE_READ_REG(hw, IXGBE_BPTC); | |
9a799d71 AK |
5340 | |
5341 | /* Fill out the OS statistics structure */ | |
7ca647bd | 5342 | netdev->stats.multicast = hwstats->mprc; |
9a799d71 AK |
5343 | |
5344 | /* Rx Errors */ | |
7ca647bd | 5345 | netdev->stats.rx_errors = hwstats->crcerrs + hwstats->rlec; |
2d86f139 | 5346 | netdev->stats.rx_dropped = 0; |
7ca647bd JP |
5347 | netdev->stats.rx_length_errors = hwstats->rlec; |
5348 | netdev->stats.rx_crc_errors = hwstats->crcerrs; | |
2d86f139 | 5349 | netdev->stats.rx_missed_errors = total_mpc; |
9a799d71 AK |
5350 | } |
5351 | ||
5352 | /** | |
d034acf1 | 5353 | * ixgbe_fdir_reinit_subtask - worker thread to reinit FDIR filter table |
49ce9c2c | 5354 | * @adapter: pointer to the device adapter structure |
9a799d71 | 5355 | **/ |
d034acf1 | 5356 | static void ixgbe_fdir_reinit_subtask(struct ixgbe_adapter *adapter) |
9a799d71 | 5357 | { |
cf8280ee | 5358 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a | 5359 | int i; |
cf8280ee | 5360 | |
d034acf1 AD |
5361 | if (!(adapter->flags2 & IXGBE_FLAG2_FDIR_REQUIRES_REINIT)) |
5362 | return; | |
5363 | ||
5364 | adapter->flags2 &= ~IXGBE_FLAG2_FDIR_REQUIRES_REINIT; | |
22d5a71b | 5365 | |
d034acf1 | 5366 | /* if interface is down do nothing */ |
fe49f04a | 5367 | if (test_bit(__IXGBE_DOWN, &adapter->state)) |
d034acf1 AD |
5368 | return; |
5369 | ||
5370 | /* do nothing if we are not using signature filters */ | |
5371 | if (!(adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE)) | |
5372 | return; | |
5373 | ||
5374 | adapter->fdir_overflow++; | |
5375 | ||
93c52dd0 AD |
5376 | if (ixgbe_reinit_fdir_tables_82599(hw) == 0) { |
5377 | for (i = 0; i < adapter->num_tx_queues; i++) | |
5378 | set_bit(__IXGBE_TX_FDIR_INIT_DONE, | |
f0f9778d | 5379 | &(adapter->tx_ring[i]->state)); |
d034acf1 AD |
5380 | /* re-enable flow director interrupts */ |
5381 | IXGBE_WRITE_REG(hw, IXGBE_EIMS, IXGBE_EIMS_FLOW_DIR); | |
93c52dd0 AD |
5382 | } else { |
5383 | e_err(probe, "failed to finish FDIR re-initialization, " | |
5384 | "ignored adding FDIR ATR filters\n"); | |
5385 | } | |
93c52dd0 AD |
5386 | } |
5387 | ||
5388 | /** | |
5389 | * ixgbe_check_hang_subtask - check for hung queues and dropped interrupts | |
49ce9c2c | 5390 | * @adapter: pointer to the device adapter structure |
93c52dd0 AD |
5391 | * |
5392 | * This function serves two purposes. First it strobes the interrupt lines | |
52f33af8 | 5393 | * in order to make certain interrupts are occurring. Secondly it sets the |
93c52dd0 | 5394 | * bits needed to check for TX hangs. As a result we should immediately |
52f33af8 | 5395 | * determine if a hang has occurred. |
93c52dd0 AD |
5396 | */ |
5397 | static void ixgbe_check_hang_subtask(struct ixgbe_adapter *adapter) | |
9a799d71 | 5398 | { |
cf8280ee | 5399 | struct ixgbe_hw *hw = &adapter->hw; |
fe49f04a AD |
5400 | u64 eics = 0; |
5401 | int i; | |
cf8280ee | 5402 | |
93c52dd0 AD |
5403 | /* If we're down or resetting, just bail */ |
5404 | if (test_bit(__IXGBE_DOWN, &adapter->state) || | |
5405 | test_bit(__IXGBE_RESETTING, &adapter->state)) | |
5406 | return; | |
22d5a71b | 5407 | |
93c52dd0 AD |
5408 | /* Force detection of hung controller */ |
5409 | if (netif_carrier_ok(adapter->netdev)) { | |
5410 | for (i = 0; i < adapter->num_tx_queues; i++) | |
5411 | set_check_for_tx_hang(adapter->tx_ring[i]); | |
5412 | } | |
22d5a71b | 5413 | |
fe49f04a AD |
5414 | if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) { |
5415 | /* | |
5416 | * for legacy and MSI interrupts don't set any bits | |
5417 | * that are enabled for EIAM, because this operation | |
5418 | * would set *both* EIMS and EICS for any bit in EIAM | |
5419 | */ | |
5420 | IXGBE_WRITE_REG(hw, IXGBE_EICS, | |
5421 | (IXGBE_EICS_TCP_TIMER | IXGBE_EICS_OTHER)); | |
93c52dd0 AD |
5422 | } else { |
5423 | /* get one bit for every active tx/rx interrupt vector */ | |
49c7ffbe | 5424 | for (i = 0; i < adapter->num_q_vectors; i++) { |
93c52dd0 | 5425 | struct ixgbe_q_vector *qv = adapter->q_vector[i]; |
efe3d3c8 | 5426 | if (qv->rx.ring || qv->tx.ring) |
93c52dd0 AD |
5427 | eics |= ((u64)1 << i); |
5428 | } | |
cf8280ee | 5429 | } |
9a799d71 | 5430 | |
93c52dd0 | 5431 | /* Cause software interrupt to ensure rings are cleaned */ |
fe49f04a AD |
5432 | ixgbe_irq_rearm_queues(adapter, eics); |
5433 | ||
cf8280ee JB |
5434 | } |
5435 | ||
e8e26350 | 5436 | /** |
93c52dd0 | 5437 | * ixgbe_watchdog_update_link - update the link status |
49ce9c2c BH |
5438 | * @adapter: pointer to the device adapter structure |
5439 | * @link_speed: pointer to a u32 to store the link_speed | |
e8e26350 | 5440 | **/ |
93c52dd0 | 5441 | static void ixgbe_watchdog_update_link(struct ixgbe_adapter *adapter) |
e8e26350 | 5442 | { |
e8e26350 | 5443 | struct ixgbe_hw *hw = &adapter->hw; |
93c52dd0 AD |
5444 | u32 link_speed = adapter->link_speed; |
5445 | bool link_up = adapter->link_up; | |
041441d0 | 5446 | bool pfc_en = adapter->dcb_cfg.pfc_mode_enable; |
e8e26350 | 5447 | |
93c52dd0 AD |
5448 | if (!(adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE)) |
5449 | return; | |
5450 | ||
5451 | if (hw->mac.ops.check_link) { | |
5452 | hw->mac.ops.check_link(hw, &link_speed, &link_up, false); | |
c4cf55e5 | 5453 | } else { |
93c52dd0 AD |
5454 | /* always assume link is up, if no check link function */ |
5455 | link_speed = IXGBE_LINK_SPEED_10GB_FULL; | |
5456 | link_up = true; | |
c4cf55e5 | 5457 | } |
041441d0 AD |
5458 | |
5459 | if (adapter->ixgbe_ieee_pfc) | |
5460 | pfc_en |= !!(adapter->ixgbe_ieee_pfc->pfc_en); | |
5461 | ||
3ebe8fde | 5462 | if (link_up && !((adapter->flags & IXGBE_FLAG_DCB_ENABLED) && pfc_en)) { |
041441d0 | 5463 | hw->mac.ops.fc_enable(hw); |
3ebe8fde AD |
5464 | ixgbe_set_rx_drop_en(adapter); |
5465 | } | |
93c52dd0 AD |
5466 | |
5467 | if (link_up || | |
5468 | time_after(jiffies, (adapter->link_check_timeout + | |
5469 | IXGBE_TRY_LINK_TIMEOUT))) { | |
5470 | adapter->flags &= ~IXGBE_FLAG_NEED_LINK_UPDATE; | |
5471 | IXGBE_WRITE_REG(hw, IXGBE_EIMS, IXGBE_EIMC_LSC); | |
5472 | IXGBE_WRITE_FLUSH(hw); | |
5473 | } | |
5474 | ||
5475 | adapter->link_up = link_up; | |
5476 | adapter->link_speed = link_speed; | |
e8e26350 PW |
5477 | } |
5478 | ||
107d3018 AD |
5479 | static void ixgbe_update_default_up(struct ixgbe_adapter *adapter) |
5480 | { | |
5481 | #ifdef CONFIG_IXGBE_DCB | |
5482 | struct net_device *netdev = adapter->netdev; | |
5483 | struct dcb_app app = { | |
5484 | .selector = IEEE_8021QAZ_APP_SEL_ETHERTYPE, | |
5485 | .protocol = 0, | |
5486 | }; | |
5487 | u8 up = 0; | |
5488 | ||
5489 | if (adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE) | |
5490 | up = dcb_ieee_getapp_mask(netdev, &app); | |
5491 | ||
5492 | adapter->default_up = (up > 1) ? (ffs(up) - 1) : 0; | |
5493 | #endif | |
5494 | } | |
5495 | ||
e8e26350 | 5496 | /** |
93c52dd0 AD |
5497 | * ixgbe_watchdog_link_is_up - update netif_carrier status and |
5498 | * print link up message | |
49ce9c2c | 5499 | * @adapter: pointer to the device adapter structure |
e8e26350 | 5500 | **/ |
93c52dd0 | 5501 | static void ixgbe_watchdog_link_is_up(struct ixgbe_adapter *adapter) |
e8e26350 | 5502 | { |
93c52dd0 | 5503 | struct net_device *netdev = adapter->netdev; |
e8e26350 | 5504 | struct ixgbe_hw *hw = &adapter->hw; |
93c52dd0 AD |
5505 | u32 link_speed = adapter->link_speed; |
5506 | bool flow_rx, flow_tx; | |
e8e26350 | 5507 | |
93c52dd0 AD |
5508 | /* only continue if link was previously down */ |
5509 | if (netif_carrier_ok(netdev)) | |
a985b6c3 | 5510 | return; |
63d6e1d8 | 5511 | |
93c52dd0 | 5512 | adapter->flags2 &= ~IXGBE_FLAG2_SEARCH_FOR_SFP; |
63d6e1d8 | 5513 | |
93c52dd0 AD |
5514 | switch (hw->mac.type) { |
5515 | case ixgbe_mac_82598EB: { | |
5516 | u32 frctl = IXGBE_READ_REG(hw, IXGBE_FCTRL); | |
5517 | u32 rmcs = IXGBE_READ_REG(hw, IXGBE_RMCS); | |
5518 | flow_rx = !!(frctl & IXGBE_FCTRL_RFCE); | |
5519 | flow_tx = !!(rmcs & IXGBE_RMCS_TFCE_802_3X); | |
5520 | } | |
5521 | break; | |
5522 | case ixgbe_mac_X540: | |
5523 | case ixgbe_mac_82599EB: { | |
5524 | u32 mflcn = IXGBE_READ_REG(hw, IXGBE_MFLCN); | |
5525 | u32 fccfg = IXGBE_READ_REG(hw, IXGBE_FCCFG); | |
5526 | flow_rx = !!(mflcn & IXGBE_MFLCN_RFCE); | |
5527 | flow_tx = !!(fccfg & IXGBE_FCCFG_TFCE_802_3X); | |
5528 | } | |
5529 | break; | |
5530 | default: | |
5531 | flow_tx = false; | |
5532 | flow_rx = false; | |
5533 | break; | |
e8e26350 | 5534 | } |
3a6a4eda | 5535 | |
6cb562d6 JK |
5536 | adapter->last_rx_ptp_check = jiffies; |
5537 | ||
1a71ab24 JK |
5538 | if (adapter->flags2 & IXGBE_FLAG2_PTP_ENABLED) |
5539 | ixgbe_ptp_start_cyclecounter(adapter); | |
3a6a4eda | 5540 | |
93c52dd0 AD |
5541 | e_info(drv, "NIC Link is Up %s, Flow Control: %s\n", |
5542 | (link_speed == IXGBE_LINK_SPEED_10GB_FULL ? | |
5543 | "10 Gbps" : | |
5544 | (link_speed == IXGBE_LINK_SPEED_1GB_FULL ? | |
5545 | "1 Gbps" : | |
5546 | (link_speed == IXGBE_LINK_SPEED_100_FULL ? | |
5547 | "100 Mbps" : | |
5548 | "unknown speed"))), | |
5549 | ((flow_rx && flow_tx) ? "RX/TX" : | |
5550 | (flow_rx ? "RX" : | |
5551 | (flow_tx ? "TX" : "None")))); | |
e8e26350 | 5552 | |
93c52dd0 | 5553 | netif_carrier_on(netdev); |
93c52dd0 | 5554 | ixgbe_check_vf_rate_limit(adapter); |
befa2af7 | 5555 | |
107d3018 AD |
5556 | /* update the default user priority for VFs */ |
5557 | ixgbe_update_default_up(adapter); | |
5558 | ||
befa2af7 AD |
5559 | /* ping all the active vfs to let them know link has changed */ |
5560 | ixgbe_ping_all_vfs(adapter); | |
e8e26350 PW |
5561 | } |
5562 | ||
c4cf55e5 | 5563 | /** |
93c52dd0 AD |
5564 | * ixgbe_watchdog_link_is_down - update netif_carrier status and |
5565 | * print link down message | |
49ce9c2c | 5566 | * @adapter: pointer to the adapter structure |
c4cf55e5 | 5567 | **/ |
581330ba | 5568 | static void ixgbe_watchdog_link_is_down(struct ixgbe_adapter *adapter) |
c4cf55e5 | 5569 | { |
cf8280ee | 5570 | struct net_device *netdev = adapter->netdev; |
c4cf55e5 | 5571 | struct ixgbe_hw *hw = &adapter->hw; |
10eec955 | 5572 | |
93c52dd0 AD |
5573 | adapter->link_up = false; |
5574 | adapter->link_speed = 0; | |
cf8280ee | 5575 | |
93c52dd0 AD |
5576 | /* only continue if link was up previously */ |
5577 | if (!netif_carrier_ok(netdev)) | |
5578 | return; | |
264857b8 | 5579 | |
93c52dd0 AD |
5580 | /* poll for SFP+ cable when link is down */ |
5581 | if (ixgbe_is_sfp(hw) && hw->mac.type == ixgbe_mac_82598EB) | |
5582 | adapter->flags2 |= IXGBE_FLAG2_SEARCH_FOR_SFP; | |
9a799d71 | 5583 | |
1a71ab24 JK |
5584 | if (adapter->flags2 & IXGBE_FLAG2_PTP_ENABLED) |
5585 | ixgbe_ptp_start_cyclecounter(adapter); | |
3a6a4eda | 5586 | |
93c52dd0 AD |
5587 | e_info(drv, "NIC Link is Down\n"); |
5588 | netif_carrier_off(netdev); | |
befa2af7 AD |
5589 | |
5590 | /* ping all the active vfs to let them know link has changed */ | |
5591 | ixgbe_ping_all_vfs(adapter); | |
93c52dd0 | 5592 | } |
e8e26350 | 5593 | |
93c52dd0 AD |
5594 | /** |
5595 | * ixgbe_watchdog_flush_tx - flush queues on link down | |
49ce9c2c | 5596 | * @adapter: pointer to the device adapter structure |
93c52dd0 AD |
5597 | **/ |
5598 | static void ixgbe_watchdog_flush_tx(struct ixgbe_adapter *adapter) | |
5599 | { | |
c4cf55e5 | 5600 | int i; |
93c52dd0 | 5601 | int some_tx_pending = 0; |
c4cf55e5 | 5602 | |
93c52dd0 | 5603 | if (!netif_carrier_ok(adapter->netdev)) { |
bc59fcda | 5604 | for (i = 0; i < adapter->num_tx_queues; i++) { |
93c52dd0 | 5605 | struct ixgbe_ring *tx_ring = adapter->tx_ring[i]; |
bc59fcda NS |
5606 | if (tx_ring->next_to_use != tx_ring->next_to_clean) { |
5607 | some_tx_pending = 1; | |
5608 | break; | |
5609 | } | |
5610 | } | |
5611 | ||
5612 | if (some_tx_pending) { | |
5613 | /* We've lost link, so the controller stops DMA, | |
5614 | * but we've got queued Tx work that's never going | |
5615 | * to get done, so reset controller to flush Tx. | |
5616 | * (Do the reset outside of interrupt context). | |
5617 | */ | |
12ff3f3b | 5618 | e_warn(drv, "initiating reset to clear Tx work after link loss\n"); |
c83c6cbd | 5619 | adapter->flags2 |= IXGBE_FLAG2_RESET_REQUESTED; |
bc59fcda | 5620 | } |
c4cf55e5 | 5621 | } |
c4cf55e5 PWJ |
5622 | } |
5623 | ||
a985b6c3 GR |
5624 | static void ixgbe_spoof_check(struct ixgbe_adapter *adapter) |
5625 | { | |
5626 | u32 ssvpc; | |
5627 | ||
0584d999 GR |
5628 | /* Do not perform spoof check for 82598 or if not in IOV mode */ |
5629 | if (adapter->hw.mac.type == ixgbe_mac_82598EB || | |
5630 | adapter->num_vfs == 0) | |
a985b6c3 GR |
5631 | return; |
5632 | ||
5633 | ssvpc = IXGBE_READ_REG(&adapter->hw, IXGBE_SSVPC); | |
5634 | ||
5635 | /* | |
5636 | * ssvpc register is cleared on read, if zero then no | |
5637 | * spoofed packets in the last interval. | |
5638 | */ | |
5639 | if (!ssvpc) | |
5640 | return; | |
5641 | ||
d6ea0754 | 5642 | e_warn(drv, "%u Spoofed packets detected\n", ssvpc); |
a985b6c3 GR |
5643 | } |
5644 | ||
93c52dd0 AD |
5645 | /** |
5646 | * ixgbe_watchdog_subtask - check and bring link up | |
49ce9c2c | 5647 | * @adapter: pointer to the device adapter structure |
93c52dd0 AD |
5648 | **/ |
5649 | static void ixgbe_watchdog_subtask(struct ixgbe_adapter *adapter) | |
5650 | { | |
5651 | /* if interface is down do nothing */ | |
7edebf9a ET |
5652 | if (test_bit(__IXGBE_DOWN, &adapter->state) || |
5653 | test_bit(__IXGBE_RESETTING, &adapter->state)) | |
93c52dd0 AD |
5654 | return; |
5655 | ||
5656 | ixgbe_watchdog_update_link(adapter); | |
5657 | ||
5658 | if (adapter->link_up) | |
5659 | ixgbe_watchdog_link_is_up(adapter); | |
5660 | else | |
5661 | ixgbe_watchdog_link_is_down(adapter); | |
bc59fcda | 5662 | |
a985b6c3 | 5663 | ixgbe_spoof_check(adapter); |
9a799d71 | 5664 | ixgbe_update_stats(adapter); |
93c52dd0 AD |
5665 | |
5666 | ixgbe_watchdog_flush_tx(adapter); | |
9a799d71 | 5667 | } |
10eec955 | 5668 | |
cf8280ee | 5669 | /** |
7086400d | 5670 | * ixgbe_sfp_detection_subtask - poll for SFP+ cable |
49ce9c2c | 5671 | * @adapter: the ixgbe adapter structure |
cf8280ee | 5672 | **/ |
7086400d | 5673 | static void ixgbe_sfp_detection_subtask(struct ixgbe_adapter *adapter) |
cf8280ee | 5674 | { |
cf8280ee | 5675 | struct ixgbe_hw *hw = &adapter->hw; |
7086400d | 5676 | s32 err; |
cf8280ee | 5677 | |
7086400d AD |
5678 | /* not searching for SFP so there is nothing to do here */ |
5679 | if (!(adapter->flags2 & IXGBE_FLAG2_SEARCH_FOR_SFP) && | |
5680 | !(adapter->flags2 & IXGBE_FLAG2_SFP_NEEDS_RESET)) | |
5681 | return; | |
10eec955 | 5682 | |
7086400d AD |
5683 | /* someone else is in init, wait until next service event */ |
5684 | if (test_and_set_bit(__IXGBE_IN_SFP_INIT, &adapter->state)) | |
5685 | return; | |
cf8280ee | 5686 | |
7086400d AD |
5687 | err = hw->phy.ops.identify_sfp(hw); |
5688 | if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) | |
5689 | goto sfp_out; | |
264857b8 | 5690 | |
7086400d AD |
5691 | if (err == IXGBE_ERR_SFP_NOT_PRESENT) { |
5692 | /* If no cable is present, then we need to reset | |
5693 | * the next time we find a good cable. */ | |
5694 | adapter->flags2 |= IXGBE_FLAG2_SFP_NEEDS_RESET; | |
cf8280ee | 5695 | } |
9a799d71 | 5696 | |
7086400d AD |
5697 | /* exit on error */ |
5698 | if (err) | |
5699 | goto sfp_out; | |
e8e26350 | 5700 | |
7086400d AD |
5701 | /* exit if reset not needed */ |
5702 | if (!(adapter->flags2 & IXGBE_FLAG2_SFP_NEEDS_RESET)) | |
5703 | goto sfp_out; | |
9a799d71 | 5704 | |
7086400d | 5705 | adapter->flags2 &= ~IXGBE_FLAG2_SFP_NEEDS_RESET; |
bc59fcda | 5706 | |
7086400d AD |
5707 | /* |
5708 | * A module may be identified correctly, but the EEPROM may not have | |
5709 | * support for that module. setup_sfp() will fail in that case, so | |
5710 | * we should not allow that module to load. | |
5711 | */ | |
5712 | if (hw->mac.type == ixgbe_mac_82598EB) | |
5713 | err = hw->phy.ops.reset(hw); | |
5714 | else | |
5715 | err = hw->mac.ops.setup_sfp(hw); | |
5716 | ||
5717 | if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) | |
5718 | goto sfp_out; | |
5719 | ||
5720 | adapter->flags |= IXGBE_FLAG_NEED_LINK_CONFIG; | |
5721 | e_info(probe, "detected SFP+: %d\n", hw->phy.sfp_type); | |
5722 | ||
5723 | sfp_out: | |
5724 | clear_bit(__IXGBE_IN_SFP_INIT, &adapter->state); | |
5725 | ||
5726 | if ((err == IXGBE_ERR_SFP_NOT_SUPPORTED) && | |
5727 | (adapter->netdev->reg_state == NETREG_REGISTERED)) { | |
5728 | e_dev_err("failed to initialize because an unsupported " | |
5729 | "SFP+ module type was detected.\n"); | |
5730 | e_dev_err("Reload the driver after installing a " | |
5731 | "supported module.\n"); | |
5732 | unregister_netdev(adapter->netdev); | |
bc59fcda | 5733 | } |
7086400d | 5734 | } |
bc59fcda | 5735 | |
7086400d AD |
5736 | /** |
5737 | * ixgbe_sfp_link_config_subtask - set up link SFP after module install | |
49ce9c2c | 5738 | * @adapter: the ixgbe adapter structure |
7086400d AD |
5739 | **/ |
5740 | static void ixgbe_sfp_link_config_subtask(struct ixgbe_adapter *adapter) | |
5741 | { | |
5742 | struct ixgbe_hw *hw = &adapter->hw; | |
3d292265 JH |
5743 | u32 speed; |
5744 | bool autoneg = false; | |
7086400d AD |
5745 | |
5746 | if (!(adapter->flags & IXGBE_FLAG_NEED_LINK_CONFIG)) | |
5747 | return; | |
5748 | ||
5749 | /* someone else is in init, wait until next service event */ | |
5750 | if (test_and_set_bit(__IXGBE_IN_SFP_INIT, &adapter->state)) | |
5751 | return; | |
5752 | ||
5753 | adapter->flags &= ~IXGBE_FLAG_NEED_LINK_CONFIG; | |
5754 | ||
3d292265 JH |
5755 | speed = hw->phy.autoneg_advertised; |
5756 | if ((!speed) && (hw->mac.ops.get_link_capabilities)) | |
5757 | hw->mac.ops.get_link_capabilities(hw, &speed, &autoneg); | |
7086400d | 5758 | if (hw->mac.ops.setup_link) |
fd0326f2 | 5759 | hw->mac.ops.setup_link(hw, speed, true); |
7086400d AD |
5760 | |
5761 | adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; | |
5762 | adapter->link_check_timeout = jiffies; | |
5763 | clear_bit(__IXGBE_IN_SFP_INIT, &adapter->state); | |
5764 | } | |
5765 | ||
83c61fa9 GR |
5766 | #ifdef CONFIG_PCI_IOV |
5767 | static void ixgbe_check_for_bad_vf(struct ixgbe_adapter *adapter) | |
5768 | { | |
5769 | int vf; | |
5770 | struct ixgbe_hw *hw = &adapter->hw; | |
5771 | struct net_device *netdev = adapter->netdev; | |
5772 | u32 gpc; | |
5773 | u32 ciaa, ciad; | |
5774 | ||
5775 | gpc = IXGBE_READ_REG(hw, IXGBE_TXDGPC); | |
5776 | if (gpc) /* If incrementing then no need for the check below */ | |
5777 | return; | |
5778 | /* | |
5779 | * Check to see if a bad DMA write target from an errant or | |
5780 | * malicious VF has caused a PCIe error. If so then we can | |
5781 | * issue a VFLR to the offending VF(s) and then resume without | |
5782 | * requesting a full slot reset. | |
5783 | */ | |
5784 | ||
5785 | for (vf = 0; vf < adapter->num_vfs; vf++) { | |
5786 | ciaa = (vf << 16) | 0x80000000; | |
5787 | /* 32 bit read so align, we really want status at offset 6 */ | |
5788 | ciaa |= PCI_COMMAND; | |
5789 | IXGBE_WRITE_REG(hw, IXGBE_CIAA_82599, ciaa); | |
5790 | ciad = IXGBE_READ_REG(hw, IXGBE_CIAD_82599); | |
5791 | ciaa &= 0x7FFFFFFF; | |
5792 | /* disable debug mode asap after reading data */ | |
5793 | IXGBE_WRITE_REG(hw, IXGBE_CIAA_82599, ciaa); | |
5794 | /* Get the upper 16 bits which will be the PCI status reg */ | |
5795 | ciad >>= 16; | |
5796 | if (ciad & PCI_STATUS_REC_MASTER_ABORT) { | |
5797 | netdev_err(netdev, "VF %d Hung DMA\n", vf); | |
5798 | /* Issue VFLR */ | |
5799 | ciaa = (vf << 16) | 0x80000000; | |
5800 | ciaa |= 0xA8; | |
5801 | IXGBE_WRITE_REG(hw, IXGBE_CIAA_82599, ciaa); | |
5802 | ciad = 0x00008000; /* VFLR */ | |
5803 | IXGBE_WRITE_REG(hw, IXGBE_CIAD_82599, ciad); | |
5804 | ciaa &= 0x7FFFFFFF; | |
5805 | IXGBE_WRITE_REG(hw, IXGBE_CIAA_82599, ciaa); | |
5806 | } | |
5807 | } | |
5808 | } | |
5809 | ||
5810 | #endif | |
7086400d AD |
5811 | /** |
5812 | * ixgbe_service_timer - Timer Call-back | |
5813 | * @data: pointer to adapter cast into an unsigned long | |
5814 | **/ | |
5815 | static void ixgbe_service_timer(unsigned long data) | |
5816 | { | |
5817 | struct ixgbe_adapter *adapter = (struct ixgbe_adapter *)data; | |
5818 | unsigned long next_event_offset; | |
83c61fa9 | 5819 | bool ready = true; |
7086400d | 5820 | |
6bb78cfb AD |
5821 | /* poll faster when waiting for link */ |
5822 | if (adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE) | |
5823 | next_event_offset = HZ / 10; | |
5824 | else | |
5825 | next_event_offset = HZ * 2; | |
83c61fa9 | 5826 | |
6bb78cfb | 5827 | #ifdef CONFIG_PCI_IOV |
83c61fa9 GR |
5828 | /* |
5829 | * don't bother with SR-IOV VF DMA hang check if there are | |
5830 | * no VFs or the link is down | |
5831 | */ | |
5832 | if (!adapter->num_vfs || | |
6bb78cfb | 5833 | (adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE)) |
83c61fa9 | 5834 | goto normal_timer_service; |
83c61fa9 GR |
5835 | |
5836 | /* If we have VFs allocated then we must check for DMA hangs */ | |
5837 | ixgbe_check_for_bad_vf(adapter); | |
5838 | next_event_offset = HZ / 50; | |
5839 | adapter->timer_event_accumulator++; | |
5840 | ||
6bb78cfb | 5841 | if (adapter->timer_event_accumulator >= 100) |
83c61fa9 | 5842 | adapter->timer_event_accumulator = 0; |
7086400d | 5843 | else |
6bb78cfb | 5844 | ready = false; |
7086400d | 5845 | |
6bb78cfb | 5846 | normal_timer_service: |
83c61fa9 | 5847 | #endif |
7086400d AD |
5848 | /* Reset the timer */ |
5849 | mod_timer(&adapter->service_timer, next_event_offset + jiffies); | |
5850 | ||
83c61fa9 GR |
5851 | if (ready) |
5852 | ixgbe_service_event_schedule(adapter); | |
7086400d AD |
5853 | } |
5854 | ||
c83c6cbd AD |
5855 | static void ixgbe_reset_subtask(struct ixgbe_adapter *adapter) |
5856 | { | |
5857 | if (!(adapter->flags2 & IXGBE_FLAG2_RESET_REQUESTED)) | |
5858 | return; | |
5859 | ||
5860 | adapter->flags2 &= ~IXGBE_FLAG2_RESET_REQUESTED; | |
5861 | ||
5862 | /* If we're already down or resetting, just bail */ | |
5863 | if (test_bit(__IXGBE_DOWN, &adapter->state) || | |
5864 | test_bit(__IXGBE_RESETTING, &adapter->state)) | |
5865 | return; | |
5866 | ||
5867 | ixgbe_dump(adapter); | |
5868 | netdev_err(adapter->netdev, "Reset adapter\n"); | |
5869 | adapter->tx_timeout_count++; | |
5870 | ||
5871 | ixgbe_reinit_locked(adapter); | |
5872 | } | |
5873 | ||
7086400d AD |
5874 | /** |
5875 | * ixgbe_service_task - manages and runs subtasks | |
5876 | * @work: pointer to work_struct containing our data | |
5877 | **/ | |
5878 | static void ixgbe_service_task(struct work_struct *work) | |
5879 | { | |
5880 | struct ixgbe_adapter *adapter = container_of(work, | |
5881 | struct ixgbe_adapter, | |
5882 | service_task); | |
c83c6cbd | 5883 | ixgbe_reset_subtask(adapter); |
7086400d AD |
5884 | ixgbe_sfp_detection_subtask(adapter); |
5885 | ixgbe_sfp_link_config_subtask(adapter); | |
f0f9778d | 5886 | ixgbe_check_overtemp_subtask(adapter); |
93c52dd0 | 5887 | ixgbe_watchdog_subtask(adapter); |
d034acf1 | 5888 | ixgbe_fdir_reinit_subtask(adapter); |
93c52dd0 | 5889 | ixgbe_check_hang_subtask(adapter); |
891dc082 JK |
5890 | |
5891 | if (adapter->flags2 & IXGBE_FLAG2_PTP_ENABLED) { | |
5892 | ixgbe_ptp_overflow_check(adapter); | |
5893 | ixgbe_ptp_rx_hang(adapter); | |
5894 | } | |
7086400d AD |
5895 | |
5896 | ixgbe_service_event_complete(adapter); | |
9a799d71 AK |
5897 | } |
5898 | ||
fd0db0ed AD |
5899 | static int ixgbe_tso(struct ixgbe_ring *tx_ring, |
5900 | struct ixgbe_tx_buffer *first, | |
244e27ad | 5901 | u8 *hdr_len) |
897ab156 | 5902 | { |
fd0db0ed | 5903 | struct sk_buff *skb = first->skb; |
897ab156 AD |
5904 | u32 vlan_macip_lens, type_tucmd; |
5905 | u32 mss_l4len_idx, l4len; | |
9a799d71 | 5906 | |
8f4fbb9b AD |
5907 | if (skb->ip_summed != CHECKSUM_PARTIAL) |
5908 | return 0; | |
5909 | ||
897ab156 AD |
5910 | if (!skb_is_gso(skb)) |
5911 | return 0; | |
9a799d71 | 5912 | |
897ab156 | 5913 | if (skb_header_cloned(skb)) { |
244e27ad | 5914 | int err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC); |
897ab156 AD |
5915 | if (err) |
5916 | return err; | |
9a799d71 | 5917 | } |
9a799d71 | 5918 | |
897ab156 AD |
5919 | /* ADV DTYP TUCMD MKRLOC/ISCSIHEDLEN */ |
5920 | type_tucmd = IXGBE_ADVTXD_TUCMD_L4T_TCP; | |
5921 | ||
244e27ad | 5922 | if (first->protocol == __constant_htons(ETH_P_IP)) { |
897ab156 AD |
5923 | struct iphdr *iph = ip_hdr(skb); |
5924 | iph->tot_len = 0; | |
5925 | iph->check = 0; | |
5926 | tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, | |
5927 | iph->daddr, 0, | |
5928 | IPPROTO_TCP, | |
5929 | 0); | |
5930 | type_tucmd |= IXGBE_ADVTXD_TUCMD_IPV4; | |
244e27ad AD |
5931 | first->tx_flags |= IXGBE_TX_FLAGS_TSO | |
5932 | IXGBE_TX_FLAGS_CSUM | | |
5933 | IXGBE_TX_FLAGS_IPV4; | |
897ab156 AD |
5934 | } else if (skb_is_gso_v6(skb)) { |
5935 | ipv6_hdr(skb)->payload_len = 0; | |
5936 | tcp_hdr(skb)->check = | |
5937 | ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, | |
5938 | &ipv6_hdr(skb)->daddr, | |
5939 | 0, IPPROTO_TCP, 0); | |
244e27ad AD |
5940 | first->tx_flags |= IXGBE_TX_FLAGS_TSO | |
5941 | IXGBE_TX_FLAGS_CSUM; | |
897ab156 AD |
5942 | } |
5943 | ||
091a6246 | 5944 | /* compute header lengths */ |
897ab156 AD |
5945 | l4len = tcp_hdrlen(skb); |
5946 | *hdr_len = skb_transport_offset(skb) + l4len; | |
5947 | ||
091a6246 AD |
5948 | /* update gso size and bytecount with header size */ |
5949 | first->gso_segs = skb_shinfo(skb)->gso_segs; | |
5950 | first->bytecount += (first->gso_segs - 1) * *hdr_len; | |
5951 | ||
c44f5f51 | 5952 | /* mss_l4len_id: use 0 as index for TSO */ |
897ab156 AD |
5953 | mss_l4len_idx = l4len << IXGBE_ADVTXD_L4LEN_SHIFT; |
5954 | mss_l4len_idx |= skb_shinfo(skb)->gso_size << IXGBE_ADVTXD_MSS_SHIFT; | |
897ab156 AD |
5955 | |
5956 | /* vlan_macip_lens: HEADLEN, MACLEN, VLAN tag */ | |
5957 | vlan_macip_lens = skb_network_header_len(skb); | |
5958 | vlan_macip_lens |= skb_network_offset(skb) << IXGBE_ADVTXD_MACLEN_SHIFT; | |
244e27ad | 5959 | vlan_macip_lens |= first->tx_flags & IXGBE_TX_FLAGS_VLAN_MASK; |
897ab156 AD |
5960 | |
5961 | ixgbe_tx_ctxtdesc(tx_ring, vlan_macip_lens, 0, type_tucmd, | |
244e27ad | 5962 | mss_l4len_idx); |
897ab156 AD |
5963 | |
5964 | return 1; | |
5965 | } | |
5966 | ||
244e27ad AD |
5967 | static void ixgbe_tx_csum(struct ixgbe_ring *tx_ring, |
5968 | struct ixgbe_tx_buffer *first) | |
7ca647bd | 5969 | { |
fd0db0ed | 5970 | struct sk_buff *skb = first->skb; |
897ab156 AD |
5971 | u32 vlan_macip_lens = 0; |
5972 | u32 mss_l4len_idx = 0; | |
5973 | u32 type_tucmd = 0; | |
7ca647bd | 5974 | |
897ab156 | 5975 | if (skb->ip_summed != CHECKSUM_PARTIAL) { |
472148c3 AD |
5976 | if (!(first->tx_flags & IXGBE_TX_FLAGS_HW_VLAN) && |
5977 | !(first->tx_flags & IXGBE_TX_FLAGS_CC)) | |
5978 | return; | |
897ab156 AD |
5979 | } else { |
5980 | u8 l4_hdr = 0; | |
244e27ad | 5981 | switch (first->protocol) { |
897ab156 AD |
5982 | case __constant_htons(ETH_P_IP): |
5983 | vlan_macip_lens |= skb_network_header_len(skb); | |
5984 | type_tucmd |= IXGBE_ADVTXD_TUCMD_IPV4; | |
5985 | l4_hdr = ip_hdr(skb)->protocol; | |
7ca647bd | 5986 | break; |
897ab156 AD |
5987 | case __constant_htons(ETH_P_IPV6): |
5988 | vlan_macip_lens |= skb_network_header_len(skb); | |
5989 | l4_hdr = ipv6_hdr(skb)->nexthdr; | |
5990 | break; | |
5991 | default: | |
5992 | if (unlikely(net_ratelimit())) { | |
5993 | dev_warn(tx_ring->dev, | |
5994 | "partial checksum but proto=%x!\n", | |
244e27ad | 5995 | first->protocol); |
897ab156 | 5996 | } |
7ca647bd JP |
5997 | break; |
5998 | } | |
897ab156 AD |
5999 | |
6000 | switch (l4_hdr) { | |
7ca647bd | 6001 | case IPPROTO_TCP: |
897ab156 AD |
6002 | type_tucmd |= IXGBE_ADVTXD_TUCMD_L4T_TCP; |
6003 | mss_l4len_idx = tcp_hdrlen(skb) << | |
6004 | IXGBE_ADVTXD_L4LEN_SHIFT; | |
7ca647bd JP |
6005 | break; |
6006 | case IPPROTO_SCTP: | |
897ab156 AD |
6007 | type_tucmd |= IXGBE_ADVTXD_TUCMD_L4T_SCTP; |
6008 | mss_l4len_idx = sizeof(struct sctphdr) << | |
6009 | IXGBE_ADVTXD_L4LEN_SHIFT; | |
6010 | break; | |
6011 | case IPPROTO_UDP: | |
6012 | mss_l4len_idx = sizeof(struct udphdr) << | |
6013 | IXGBE_ADVTXD_L4LEN_SHIFT; | |
6014 | break; | |
6015 | default: | |
6016 | if (unlikely(net_ratelimit())) { | |
6017 | dev_warn(tx_ring->dev, | |
6018 | "partial checksum but l4 proto=%x!\n", | |
244e27ad | 6019 | l4_hdr); |
897ab156 | 6020 | } |
7ca647bd JP |
6021 | break; |
6022 | } | |
244e27ad AD |
6023 | |
6024 | /* update TX checksum flag */ | |
6025 | first->tx_flags |= IXGBE_TX_FLAGS_CSUM; | |
7ca647bd JP |
6026 | } |
6027 | ||
244e27ad | 6028 | /* vlan_macip_lens: MACLEN, VLAN tag */ |
897ab156 | 6029 | vlan_macip_lens |= skb_network_offset(skb) << IXGBE_ADVTXD_MACLEN_SHIFT; |
244e27ad | 6030 | vlan_macip_lens |= first->tx_flags & IXGBE_TX_FLAGS_VLAN_MASK; |
9a799d71 | 6031 | |
897ab156 AD |
6032 | ixgbe_tx_ctxtdesc(tx_ring, vlan_macip_lens, 0, |
6033 | type_tucmd, mss_l4len_idx); | |
9a799d71 AK |
6034 | } |
6035 | ||
472148c3 AD |
6036 | #define IXGBE_SET_FLAG(_input, _flag, _result) \ |
6037 | ((_flag <= _result) ? \ | |
6038 | ((u32)(_input & _flag) * (_result / _flag)) : \ | |
6039 | ((u32)(_input & _flag) / (_flag / _result))) | |
6040 | ||
6041 | static u32 ixgbe_tx_cmd_type(struct sk_buff *skb, u32 tx_flags) | |
9a799d71 | 6042 | { |
d3d00239 | 6043 | /* set type for advanced descriptor with frame checksum insertion */ |
472148c3 AD |
6044 | u32 cmd_type = IXGBE_ADVTXD_DTYP_DATA | |
6045 | IXGBE_ADVTXD_DCMD_DEXT | | |
6046 | IXGBE_ADVTXD_DCMD_IFCS; | |
9a799d71 | 6047 | |
d3d00239 | 6048 | /* set HW vlan bit if vlan is present */ |
472148c3 AD |
6049 | cmd_type |= IXGBE_SET_FLAG(tx_flags, IXGBE_TX_FLAGS_HW_VLAN, |
6050 | IXGBE_ADVTXD_DCMD_VLE); | |
3a6a4eda | 6051 | |
d3d00239 | 6052 | /* set segmentation enable bits for TSO/FSO */ |
472148c3 AD |
6053 | cmd_type |= IXGBE_SET_FLAG(tx_flags, IXGBE_TX_FLAGS_TSO, |
6054 | IXGBE_ADVTXD_DCMD_TSE); | |
6055 | ||
6056 | /* set timestamp bit if present */ | |
6057 | cmd_type |= IXGBE_SET_FLAG(tx_flags, IXGBE_TX_FLAGS_TSTAMP, | |
6058 | IXGBE_ADVTXD_MAC_TSTAMP); | |
eacd73f7 | 6059 | |
62748b7b | 6060 | /* insert frame checksum */ |
472148c3 | 6061 | cmd_type ^= IXGBE_SET_FLAG(skb->no_fcs, 1, IXGBE_ADVTXD_DCMD_IFCS); |
62748b7b | 6062 | |
d3d00239 AD |
6063 | return cmd_type; |
6064 | } | |
9a799d71 | 6065 | |
729739b7 AD |
6066 | static void ixgbe_tx_olinfo_status(union ixgbe_adv_tx_desc *tx_desc, |
6067 | u32 tx_flags, unsigned int paylen) | |
d3d00239 | 6068 | { |
472148c3 | 6069 | u32 olinfo_status = paylen << IXGBE_ADVTXD_PAYLEN_SHIFT; |
9a799d71 | 6070 | |
d3d00239 | 6071 | /* enable L4 checksum for TSO and TX checksum offload */ |
472148c3 AD |
6072 | olinfo_status |= IXGBE_SET_FLAG(tx_flags, |
6073 | IXGBE_TX_FLAGS_CSUM, | |
6074 | IXGBE_ADVTXD_POPTS_TXSM); | |
9a799d71 | 6075 | |
93f5b3c1 | 6076 | /* enble IPv4 checksum for TSO */ |
472148c3 AD |
6077 | olinfo_status |= IXGBE_SET_FLAG(tx_flags, |
6078 | IXGBE_TX_FLAGS_IPV4, | |
6079 | IXGBE_ADVTXD_POPTS_IXSM); | |
9a799d71 | 6080 | |
7f9643fd AD |
6081 | /* |
6082 | * Check Context must be set if Tx switch is enabled, which it | |
6083 | * always is for case where virtual functions are running | |
6084 | */ | |
472148c3 AD |
6085 | olinfo_status |= IXGBE_SET_FLAG(tx_flags, |
6086 | IXGBE_TX_FLAGS_CC, | |
6087 | IXGBE_ADVTXD_CC); | |
7f9643fd | 6088 | |
472148c3 | 6089 | tx_desc->read.olinfo_status = cpu_to_le32(olinfo_status); |
d3d00239 | 6090 | } |
44df32c5 | 6091 | |
d3d00239 AD |
6092 | #define IXGBE_TXD_CMD (IXGBE_TXD_CMD_EOP | \ |
6093 | IXGBE_TXD_CMD_RS) | |
6094 | ||
6095 | static void ixgbe_tx_map(struct ixgbe_ring *tx_ring, | |
d3d00239 | 6096 | struct ixgbe_tx_buffer *first, |
d3d00239 AD |
6097 | const u8 hdr_len) |
6098 | { | |
fd0db0ed | 6099 | struct sk_buff *skb = first->skb; |
729739b7 | 6100 | struct ixgbe_tx_buffer *tx_buffer; |
d3d00239 | 6101 | union ixgbe_adv_tx_desc *tx_desc; |
ec718254 AD |
6102 | struct skb_frag_struct *frag; |
6103 | dma_addr_t dma; | |
6104 | unsigned int data_len, size; | |
244e27ad | 6105 | u32 tx_flags = first->tx_flags; |
472148c3 | 6106 | u32 cmd_type = ixgbe_tx_cmd_type(skb, tx_flags); |
d3d00239 | 6107 | u16 i = tx_ring->next_to_use; |
d3d00239 | 6108 | |
729739b7 AD |
6109 | tx_desc = IXGBE_TX_DESC(tx_ring, i); |
6110 | ||
ec718254 AD |
6111 | ixgbe_tx_olinfo_status(tx_desc, tx_flags, skb->len - hdr_len); |
6112 | ||
6113 | size = skb_headlen(skb); | |
6114 | data_len = skb->data_len; | |
729739b7 | 6115 | |
d3d00239 AD |
6116 | #ifdef IXGBE_FCOE |
6117 | if (tx_flags & IXGBE_TX_FLAGS_FCOE) { | |
729739b7 | 6118 | if (data_len < sizeof(struct fcoe_crc_eof)) { |
d3d00239 AD |
6119 | size -= sizeof(struct fcoe_crc_eof) - data_len; |
6120 | data_len = 0; | |
729739b7 AD |
6121 | } else { |
6122 | data_len -= sizeof(struct fcoe_crc_eof); | |
9a799d71 AK |
6123 | } |
6124 | } | |
44df32c5 | 6125 | |
d3d00239 | 6126 | #endif |
729739b7 | 6127 | dma = dma_map_single(tx_ring->dev, skb->data, size, DMA_TO_DEVICE); |
8ad494b0 | 6128 | |
ec718254 | 6129 | tx_buffer = first; |
9a799d71 | 6130 | |
ec718254 AD |
6131 | for (frag = &skb_shinfo(skb)->frags[0];; frag++) { |
6132 | if (dma_mapping_error(tx_ring->dev, dma)) | |
6133 | goto dma_error; | |
6134 | ||
6135 | /* record length, and DMA address */ | |
6136 | dma_unmap_len_set(tx_buffer, len, size); | |
6137 | dma_unmap_addr_set(tx_buffer, dma, dma); | |
6138 | ||
6139 | tx_desc->read.buffer_addr = cpu_to_le64(dma); | |
e5a43549 | 6140 | |
729739b7 | 6141 | while (unlikely(size > IXGBE_MAX_DATA_PER_TXD)) { |
d3d00239 | 6142 | tx_desc->read.cmd_type_len = |
472148c3 | 6143 | cpu_to_le32(cmd_type ^ IXGBE_MAX_DATA_PER_TXD); |
e5a43549 | 6144 | |
d3d00239 | 6145 | i++; |
729739b7 | 6146 | tx_desc++; |
d3d00239 | 6147 | if (i == tx_ring->count) { |
e4f74028 | 6148 | tx_desc = IXGBE_TX_DESC(tx_ring, 0); |
d3d00239 AD |
6149 | i = 0; |
6150 | } | |
ec718254 | 6151 | tx_desc->read.olinfo_status = 0; |
729739b7 AD |
6152 | |
6153 | dma += IXGBE_MAX_DATA_PER_TXD; | |
6154 | size -= IXGBE_MAX_DATA_PER_TXD; | |
6155 | ||
6156 | tx_desc->read.buffer_addr = cpu_to_le64(dma); | |
d3d00239 | 6157 | } |
e5a43549 | 6158 | |
729739b7 AD |
6159 | if (likely(!data_len)) |
6160 | break; | |
9a799d71 | 6161 | |
472148c3 | 6162 | tx_desc->read.cmd_type_len = cpu_to_le32(cmd_type ^ size); |
9a799d71 | 6163 | |
729739b7 AD |
6164 | i++; |
6165 | tx_desc++; | |
6166 | if (i == tx_ring->count) { | |
6167 | tx_desc = IXGBE_TX_DESC(tx_ring, 0); | |
6168 | i = 0; | |
6169 | } | |
ec718254 | 6170 | tx_desc->read.olinfo_status = 0; |
9a799d71 | 6171 | |
d3d00239 | 6172 | #ifdef IXGBE_FCOE |
9e903e08 | 6173 | size = min_t(unsigned int, data_len, skb_frag_size(frag)); |
d3d00239 | 6174 | #else |
9e903e08 | 6175 | size = skb_frag_size(frag); |
d3d00239 AD |
6176 | #endif |
6177 | data_len -= size; | |
9a799d71 | 6178 | |
729739b7 AD |
6179 | dma = skb_frag_dma_map(tx_ring->dev, frag, 0, size, |
6180 | DMA_TO_DEVICE); | |
9a799d71 | 6181 | |
729739b7 | 6182 | tx_buffer = &tx_ring->tx_buffer_info[i]; |
729739b7 | 6183 | } |
9a799d71 | 6184 | |
729739b7 | 6185 | /* write last descriptor with RS and EOP bits */ |
472148c3 AD |
6186 | cmd_type |= size | IXGBE_TXD_CMD; |
6187 | tx_desc->read.cmd_type_len = cpu_to_le32(cmd_type); | |
eacd73f7 | 6188 | |
091a6246 | 6189 | netdev_tx_sent_queue(txring_txq(tx_ring), first->bytecount); |
b2d96e0a | 6190 | |
d3d00239 AD |
6191 | /* set the timestamp */ |
6192 | first->time_stamp = jiffies; | |
9a799d71 AK |
6193 | |
6194 | /* | |
729739b7 AD |
6195 | * Force memory writes to complete before letting h/w know there |
6196 | * are new descriptors to fetch. (Only applicable for weak-ordered | |
6197 | * memory model archs, such as IA-64). | |
6198 | * | |
6199 | * We also need this memory barrier to make certain all of the | |
6200 | * status bits have been updated before next_to_watch is written. | |
9a799d71 AK |
6201 | */ |
6202 | wmb(); | |
6203 | ||
d3d00239 AD |
6204 | /* set next_to_watch value indicating a packet is present */ |
6205 | first->next_to_watch = tx_desc; | |
6206 | ||
729739b7 AD |
6207 | i++; |
6208 | if (i == tx_ring->count) | |
6209 | i = 0; | |
6210 | ||
6211 | tx_ring->next_to_use = i; | |
6212 | ||
d3d00239 | 6213 | /* notify HW of packet */ |
84ea2591 | 6214 | writel(i, tx_ring->tail); |
d3d00239 AD |
6215 | |
6216 | return; | |
6217 | dma_error: | |
729739b7 | 6218 | dev_err(tx_ring->dev, "TX DMA map failed\n"); |
d3d00239 AD |
6219 | |
6220 | /* clear dma mappings for failed tx_buffer_info map */ | |
6221 | for (;;) { | |
729739b7 AD |
6222 | tx_buffer = &tx_ring->tx_buffer_info[i]; |
6223 | ixgbe_unmap_and_free_tx_resource(tx_ring, tx_buffer); | |
6224 | if (tx_buffer == first) | |
d3d00239 AD |
6225 | break; |
6226 | if (i == 0) | |
6227 | i = tx_ring->count; | |
6228 | i--; | |
6229 | } | |
6230 | ||
d3d00239 | 6231 | tx_ring->next_to_use = i; |
9a799d71 AK |
6232 | } |
6233 | ||
fd0db0ed | 6234 | static void ixgbe_atr(struct ixgbe_ring *ring, |
244e27ad | 6235 | struct ixgbe_tx_buffer *first) |
69830529 AD |
6236 | { |
6237 | struct ixgbe_q_vector *q_vector = ring->q_vector; | |
6238 | union ixgbe_atr_hash_dword input = { .dword = 0 }; | |
6239 | union ixgbe_atr_hash_dword common = { .dword = 0 }; | |
6240 | union { | |
6241 | unsigned char *network; | |
6242 | struct iphdr *ipv4; | |
6243 | struct ipv6hdr *ipv6; | |
6244 | } hdr; | |
ee9e0f0b | 6245 | struct tcphdr *th; |
905e4a41 | 6246 | __be16 vlan_id; |
c4cf55e5 | 6247 | |
69830529 AD |
6248 | /* if ring doesn't have a interrupt vector, cannot perform ATR */ |
6249 | if (!q_vector) | |
6250 | return; | |
6251 | ||
6252 | /* do nothing if sampling is disabled */ | |
6253 | if (!ring->atr_sample_rate) | |
d3ead241 | 6254 | return; |
c4cf55e5 | 6255 | |
69830529 | 6256 | ring->atr_count++; |
c4cf55e5 | 6257 | |
69830529 | 6258 | /* snag network header to get L4 type and address */ |
fd0db0ed | 6259 | hdr.network = skb_network_header(first->skb); |
69830529 AD |
6260 | |
6261 | /* Currently only IPv4/IPv6 with TCP is supported */ | |
244e27ad | 6262 | if ((first->protocol != __constant_htons(ETH_P_IPV6) || |
69830529 | 6263 | hdr.ipv6->nexthdr != IPPROTO_TCP) && |
244e27ad | 6264 | (first->protocol != __constant_htons(ETH_P_IP) || |
69830529 AD |
6265 | hdr.ipv4->protocol != IPPROTO_TCP)) |
6266 | return; | |
ee9e0f0b | 6267 | |
fd0db0ed | 6268 | th = tcp_hdr(first->skb); |
c4cf55e5 | 6269 | |
66f32a8b AD |
6270 | /* skip this packet since it is invalid or the socket is closing */ |
6271 | if (!th || th->fin) | |
69830529 AD |
6272 | return; |
6273 | ||
6274 | /* sample on all syn packets or once every atr sample count */ | |
6275 | if (!th->syn && (ring->atr_count < ring->atr_sample_rate)) | |
6276 | return; | |
6277 | ||
6278 | /* reset sample count */ | |
6279 | ring->atr_count = 0; | |
6280 | ||
244e27ad | 6281 | vlan_id = htons(first->tx_flags >> IXGBE_TX_FLAGS_VLAN_SHIFT); |
69830529 AD |
6282 | |
6283 | /* | |
6284 | * src and dst are inverted, think how the receiver sees them | |
6285 | * | |
6286 | * The input is broken into two sections, a non-compressed section | |
6287 | * containing vm_pool, vlan_id, and flow_type. The rest of the data | |
6288 | * is XORed together and stored in the compressed dword. | |
6289 | */ | |
6290 | input.formatted.vlan_id = vlan_id; | |
6291 | ||
6292 | /* | |
6293 | * since src port and flex bytes occupy the same word XOR them together | |
6294 | * and write the value to source port portion of compressed dword | |
6295 | */ | |
244e27ad | 6296 | if (first->tx_flags & (IXGBE_TX_FLAGS_SW_VLAN | IXGBE_TX_FLAGS_HW_VLAN)) |
69830529 AD |
6297 | common.port.src ^= th->dest ^ __constant_htons(ETH_P_8021Q); |
6298 | else | |
244e27ad | 6299 | common.port.src ^= th->dest ^ first->protocol; |
69830529 AD |
6300 | common.port.dst ^= th->source; |
6301 | ||
244e27ad | 6302 | if (first->protocol == __constant_htons(ETH_P_IP)) { |
69830529 AD |
6303 | input.formatted.flow_type = IXGBE_ATR_FLOW_TYPE_TCPV4; |
6304 | common.ip ^= hdr.ipv4->saddr ^ hdr.ipv4->daddr; | |
6305 | } else { | |
6306 | input.formatted.flow_type = IXGBE_ATR_FLOW_TYPE_TCPV6; | |
6307 | common.ip ^= hdr.ipv6->saddr.s6_addr32[0] ^ | |
6308 | hdr.ipv6->saddr.s6_addr32[1] ^ | |
6309 | hdr.ipv6->saddr.s6_addr32[2] ^ | |
6310 | hdr.ipv6->saddr.s6_addr32[3] ^ | |
6311 | hdr.ipv6->daddr.s6_addr32[0] ^ | |
6312 | hdr.ipv6->daddr.s6_addr32[1] ^ | |
6313 | hdr.ipv6->daddr.s6_addr32[2] ^ | |
6314 | hdr.ipv6->daddr.s6_addr32[3]; | |
6315 | } | |
c4cf55e5 PWJ |
6316 | |
6317 | /* This assumes the Rx queue and Tx queue are bound to the same CPU */ | |
69830529 AD |
6318 | ixgbe_fdir_add_signature_filter_82599(&q_vector->adapter->hw, |
6319 | input, common, ring->queue_index); | |
c4cf55e5 PWJ |
6320 | } |
6321 | ||
63544e9c | 6322 | static int __ixgbe_maybe_stop_tx(struct ixgbe_ring *tx_ring, u16 size) |
e092be60 | 6323 | { |
fc77dc3c | 6324 | netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index); |
e092be60 AV |
6325 | /* Herbert's original patch had: |
6326 | * smp_mb__after_netif_stop_queue(); | |
6327 | * but since that doesn't exist yet, just open code it. */ | |
6328 | smp_mb(); | |
6329 | ||
6330 | /* We need to check again in a case another CPU has just | |
6331 | * made room available. */ | |
7d4987de | 6332 | if (likely(ixgbe_desc_unused(tx_ring) < size)) |
e092be60 AV |
6333 | return -EBUSY; |
6334 | ||
6335 | /* A reprieve! - use start_queue because it doesn't call schedule */ | |
fc77dc3c | 6336 | netif_start_subqueue(tx_ring->netdev, tx_ring->queue_index); |
5b7da515 | 6337 | ++tx_ring->tx_stats.restart_queue; |
e092be60 AV |
6338 | return 0; |
6339 | } | |
6340 | ||
82d4e46e | 6341 | static inline int ixgbe_maybe_stop_tx(struct ixgbe_ring *tx_ring, u16 size) |
e092be60 | 6342 | { |
7d4987de | 6343 | if (likely(ixgbe_desc_unused(tx_ring) >= size)) |
e092be60 | 6344 | return 0; |
fc77dc3c | 6345 | return __ixgbe_maybe_stop_tx(tx_ring, size); |
e092be60 AV |
6346 | } |
6347 | ||
09a3b1f8 SH |
6348 | static u16 ixgbe_select_queue(struct net_device *dev, struct sk_buff *skb) |
6349 | { | |
6350 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
6440752c AD |
6351 | int txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : |
6352 | smp_processor_id(); | |
56075a98 | 6353 | #ifdef IXGBE_FCOE |
6440752c | 6354 | __be16 protocol = vlan_get_protocol(skb); |
5e09a105 | 6355 | |
e5b64635 JF |
6356 | if (((protocol == htons(ETH_P_FCOE)) || |
6357 | (protocol == htons(ETH_P_FIP))) && | |
6358 | (adapter->flags & IXGBE_FLAG_FCOE_ENABLED)) { | |
c087663e AD |
6359 | struct ixgbe_ring_feature *f; |
6360 | ||
6361 | f = &adapter->ring_feature[RING_F_FCOE]; | |
6362 | ||
6363 | while (txq >= f->indices) | |
6364 | txq -= f->indices; | |
e4b317e9 | 6365 | txq += adapter->ring_feature[RING_F_FCOE].offset; |
c087663e | 6366 | |
e5b64635 | 6367 | return txq; |
56075a98 JF |
6368 | } |
6369 | #endif | |
6370 | ||
fdd3d631 KK |
6371 | if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { |
6372 | while (unlikely(txq >= dev->real_num_tx_queues)) | |
6373 | txq -= dev->real_num_tx_queues; | |
5f715823 | 6374 | return txq; |
fdd3d631 | 6375 | } |
c4cf55e5 | 6376 | |
09a3b1f8 SH |
6377 | return skb_tx_hash(dev, skb); |
6378 | } | |
6379 | ||
fc77dc3c | 6380 | netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb, |
84418e3b AD |
6381 | struct ixgbe_adapter *adapter, |
6382 | struct ixgbe_ring *tx_ring) | |
9a799d71 | 6383 | { |
d3d00239 | 6384 | struct ixgbe_tx_buffer *first; |
5f715823 | 6385 | int tso; |
d3d00239 | 6386 | u32 tx_flags = 0; |
a535c30e AD |
6387 | #if PAGE_SIZE > IXGBE_MAX_DATA_PER_TXD |
6388 | unsigned short f; | |
6389 | #endif | |
a535c30e | 6390 | u16 count = TXD_USE_COUNT(skb_headlen(skb)); |
66f32a8b | 6391 | __be16 protocol = skb->protocol; |
63544e9c | 6392 | u8 hdr_len = 0; |
5e09a105 | 6393 | |
a535c30e AD |
6394 | /* |
6395 | * need: 1 descriptor per page * PAGE_SIZE/IXGBE_MAX_DATA_PER_TXD, | |
24ddd967 | 6396 | * + 1 desc for skb_headlen/IXGBE_MAX_DATA_PER_TXD, |
a535c30e AD |
6397 | * + 2 desc gap to keep tail from touching head, |
6398 | * + 1 desc for context descriptor, | |
6399 | * otherwise try next time | |
6400 | */ | |
6401 | #if PAGE_SIZE > IXGBE_MAX_DATA_PER_TXD | |
6402 | for (f = 0; f < skb_shinfo(skb)->nr_frags; f++) | |
6403 | count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size); | |
6404 | #else | |
6405 | count += skb_shinfo(skb)->nr_frags; | |
6406 | #endif | |
6407 | if (ixgbe_maybe_stop_tx(tx_ring, count + 3)) { | |
6408 | tx_ring->tx_stats.tx_busy++; | |
6409 | return NETDEV_TX_BUSY; | |
6410 | } | |
6411 | ||
fd0db0ed AD |
6412 | /* record the location of the first descriptor for this packet */ |
6413 | first = &tx_ring->tx_buffer_info[tx_ring->next_to_use]; | |
6414 | first->skb = skb; | |
091a6246 AD |
6415 | first->bytecount = skb->len; |
6416 | first->gso_segs = 1; | |
fd0db0ed | 6417 | |
66f32a8b | 6418 | /* if we have a HW VLAN tag being added default to the HW one */ |
eab6d18d | 6419 | if (vlan_tx_tag_present(skb)) { |
66f32a8b AD |
6420 | tx_flags |= vlan_tx_tag_get(skb) << IXGBE_TX_FLAGS_VLAN_SHIFT; |
6421 | tx_flags |= IXGBE_TX_FLAGS_HW_VLAN; | |
6422 | /* else if it is a SW VLAN check the next protocol and store the tag */ | |
6423 | } else if (protocol == __constant_htons(ETH_P_8021Q)) { | |
6424 | struct vlan_hdr *vhdr, _vhdr; | |
6425 | vhdr = skb_header_pointer(skb, ETH_HLEN, sizeof(_vhdr), &_vhdr); | |
6426 | if (!vhdr) | |
6427 | goto out_drop; | |
6428 | ||
6429 | protocol = vhdr->h_vlan_encapsulated_proto; | |
9e0c5648 AD |
6430 | tx_flags |= ntohs(vhdr->h_vlan_TCI) << |
6431 | IXGBE_TX_FLAGS_VLAN_SHIFT; | |
66f32a8b AD |
6432 | tx_flags |= IXGBE_TX_FLAGS_SW_VLAN; |
6433 | } | |
6434 | ||
aa7bd467 JK |
6435 | skb_tx_timestamp(skb); |
6436 | ||
3a6a4eda JK |
6437 | if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)) { |
6438 | skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; | |
6439 | tx_flags |= IXGBE_TX_FLAGS_TSTAMP; | |
891dc082 JK |
6440 | |
6441 | /* schedule check for Tx timestamp */ | |
6442 | adapter->ptp_tx_skb = skb_get(skb); | |
6443 | adapter->ptp_tx_start = jiffies; | |
6444 | schedule_work(&adapter->ptp_tx_work); | |
3a6a4eda | 6445 | } |
3a6a4eda | 6446 | |
9e0c5648 AD |
6447 | #ifdef CONFIG_PCI_IOV |
6448 | /* | |
6449 | * Use the l2switch_enable flag - would be false if the DMA | |
6450 | * Tx switch had been disabled. | |
6451 | */ | |
6452 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
472148c3 | 6453 | tx_flags |= IXGBE_TX_FLAGS_CC; |
9e0c5648 AD |
6454 | |
6455 | #endif | |
32701dc2 | 6456 | /* DCB maps skb priorities 0-7 onto 3 bit PCP of VLAN tag. */ |
66f32a8b | 6457 | if ((adapter->flags & IXGBE_FLAG_DCB_ENABLED) && |
09dca476 AD |
6458 | ((tx_flags & (IXGBE_TX_FLAGS_HW_VLAN | IXGBE_TX_FLAGS_SW_VLAN)) || |
6459 | (skb->priority != TC_PRIO_CONTROL))) { | |
66f32a8b | 6460 | tx_flags &= ~IXGBE_TX_FLAGS_VLAN_PRIO_MASK; |
32701dc2 JF |
6461 | tx_flags |= (skb->priority & 0x7) << |
6462 | IXGBE_TX_FLAGS_VLAN_PRIO_SHIFT; | |
66f32a8b AD |
6463 | if (tx_flags & IXGBE_TX_FLAGS_SW_VLAN) { |
6464 | struct vlan_ethhdr *vhdr; | |
6465 | if (skb_header_cloned(skb) && | |
6466 | pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) | |
6467 | goto out_drop; | |
6468 | vhdr = (struct vlan_ethhdr *)skb->data; | |
6469 | vhdr->h_vlan_TCI = htons(tx_flags >> | |
6470 | IXGBE_TX_FLAGS_VLAN_SHIFT); | |
6471 | } else { | |
6472 | tx_flags |= IXGBE_TX_FLAGS_HW_VLAN; | |
2f90b865 | 6473 | } |
9a799d71 | 6474 | } |
eacd73f7 | 6475 | |
244e27ad AD |
6476 | /* record initial flags and protocol */ |
6477 | first->tx_flags = tx_flags; | |
6478 | first->protocol = protocol; | |
6479 | ||
eacd73f7 | 6480 | #ifdef IXGBE_FCOE |
66f32a8b AD |
6481 | /* setup tx offload for FCoE */ |
6482 | if ((protocol == __constant_htons(ETH_P_FCOE)) && | |
a58915c7 | 6483 | (tx_ring->netdev->features & (NETIF_F_FSO | NETIF_F_FCOE_CRC))) { |
244e27ad | 6484 | tso = ixgbe_fso(tx_ring, first, &hdr_len); |
897ab156 AD |
6485 | if (tso < 0) |
6486 | goto out_drop; | |
9a799d71 | 6487 | |
66f32a8b | 6488 | goto xmit_fcoe; |
eacd73f7 | 6489 | } |
9a799d71 | 6490 | |
66f32a8b | 6491 | #endif /* IXGBE_FCOE */ |
244e27ad | 6492 | tso = ixgbe_tso(tx_ring, first, &hdr_len); |
66f32a8b | 6493 | if (tso < 0) |
897ab156 | 6494 | goto out_drop; |
244e27ad AD |
6495 | else if (!tso) |
6496 | ixgbe_tx_csum(tx_ring, first); | |
66f32a8b AD |
6497 | |
6498 | /* add the ATR filter if ATR is on */ | |
6499 | if (test_bit(__IXGBE_TX_FDIR_INIT_DONE, &tx_ring->state)) | |
244e27ad | 6500 | ixgbe_atr(tx_ring, first); |
66f32a8b AD |
6501 | |
6502 | #ifdef IXGBE_FCOE | |
6503 | xmit_fcoe: | |
6504 | #endif /* IXGBE_FCOE */ | |
244e27ad | 6505 | ixgbe_tx_map(tx_ring, first, hdr_len); |
d3d00239 AD |
6506 | |
6507 | ixgbe_maybe_stop_tx(tx_ring, DESC_NEEDED); | |
9a799d71 AK |
6508 | |
6509 | return NETDEV_TX_OK; | |
897ab156 AD |
6510 | |
6511 | out_drop: | |
fd0db0ed AD |
6512 | dev_kfree_skb_any(first->skb); |
6513 | first->skb = NULL; | |
6514 | ||
897ab156 | 6515 | return NETDEV_TX_OK; |
9a799d71 AK |
6516 | } |
6517 | ||
a50c29dd AD |
6518 | static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb, |
6519 | struct net_device *netdev) | |
84418e3b AD |
6520 | { |
6521 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
6522 | struct ixgbe_ring *tx_ring; | |
6523 | ||
a50c29dd AD |
6524 | /* |
6525 | * The minimum packet size for olinfo paylen is 17 so pad the skb | |
6526 | * in order to meet this minimum size requirement. | |
6527 | */ | |
f73332fc SH |
6528 | if (unlikely(skb->len < 17)) { |
6529 | if (skb_pad(skb, 17 - skb->len)) | |
a50c29dd AD |
6530 | return NETDEV_TX_OK; |
6531 | skb->len = 17; | |
71a49f77 | 6532 | skb_set_tail_pointer(skb, 17); |
a50c29dd AD |
6533 | } |
6534 | ||
84418e3b | 6535 | tx_ring = adapter->tx_ring[skb->queue_mapping]; |
fc77dc3c | 6536 | return ixgbe_xmit_frame_ring(skb, adapter, tx_ring); |
84418e3b AD |
6537 | } |
6538 | ||
9a799d71 AK |
6539 | /** |
6540 | * ixgbe_set_mac - Change the Ethernet Address of the NIC | |
6541 | * @netdev: network interface device structure | |
6542 | * @p: pointer to an address structure | |
6543 | * | |
6544 | * Returns 0 on success, negative on failure | |
6545 | **/ | |
6546 | static int ixgbe_set_mac(struct net_device *netdev, void *p) | |
6547 | { | |
6548 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
b4617240 | 6549 | struct ixgbe_hw *hw = &adapter->hw; |
9a799d71 AK |
6550 | struct sockaddr *addr = p; |
6551 | ||
6552 | if (!is_valid_ether_addr(addr->sa_data)) | |
6553 | return -EADDRNOTAVAIL; | |
6554 | ||
6555 | memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); | |
b4617240 | 6556 | memcpy(hw->mac.addr, addr->sa_data, netdev->addr_len); |
9a799d71 | 6557 | |
1d9c0bfd | 6558 | hw->mac.ops.set_rar(hw, 0, hw->mac.addr, VMDQ_P(0), IXGBE_RAH_AV); |
9a799d71 AK |
6559 | |
6560 | return 0; | |
6561 | } | |
6562 | ||
6b73e10d BH |
6563 | static int |
6564 | ixgbe_mdio_read(struct net_device *netdev, int prtad, int devad, u16 addr) | |
6565 | { | |
6566 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
6567 | struct ixgbe_hw *hw = &adapter->hw; | |
6568 | u16 value; | |
6569 | int rc; | |
6570 | ||
6571 | if (prtad != hw->phy.mdio.prtad) | |
6572 | return -EINVAL; | |
6573 | rc = hw->phy.ops.read_reg(hw, addr, devad, &value); | |
6574 | if (!rc) | |
6575 | rc = value; | |
6576 | return rc; | |
6577 | } | |
6578 | ||
6579 | static int ixgbe_mdio_write(struct net_device *netdev, int prtad, int devad, | |
6580 | u16 addr, u16 value) | |
6581 | { | |
6582 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
6583 | struct ixgbe_hw *hw = &adapter->hw; | |
6584 | ||
6585 | if (prtad != hw->phy.mdio.prtad) | |
6586 | return -EINVAL; | |
6587 | return hw->phy.ops.write_reg(hw, addr, devad, value); | |
6588 | } | |
6589 | ||
6590 | static int ixgbe_ioctl(struct net_device *netdev, struct ifreq *req, int cmd) | |
6591 | { | |
6592 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
6593 | ||
3a6a4eda | 6594 | switch (cmd) { |
3a6a4eda JK |
6595 | case SIOCSHWTSTAMP: |
6596 | return ixgbe_ptp_hwtstamp_ioctl(adapter, req, cmd); | |
3a6a4eda JK |
6597 | default: |
6598 | return mdio_mii_ioctl(&adapter->hw.phy.mdio, if_mii(req), cmd); | |
6599 | } | |
6b73e10d BH |
6600 | } |
6601 | ||
0365e6e4 PW |
6602 | /** |
6603 | * ixgbe_add_sanmac_netdev - Add the SAN MAC address to the corresponding | |
31278e71 | 6604 | * netdev->dev_addrs |
0365e6e4 PW |
6605 | * @netdev: network interface device structure |
6606 | * | |
6607 | * Returns non-zero on failure | |
6608 | **/ | |
6609 | static int ixgbe_add_sanmac_netdev(struct net_device *dev) | |
6610 | { | |
6611 | int err = 0; | |
6612 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
7fa7c9dc | 6613 | struct ixgbe_hw *hw = &adapter->hw; |
0365e6e4 | 6614 | |
7fa7c9dc | 6615 | if (is_valid_ether_addr(hw->mac.san_addr)) { |
0365e6e4 | 6616 | rtnl_lock(); |
7fa7c9dc | 6617 | err = dev_addr_add(dev, hw->mac.san_addr, NETDEV_HW_ADDR_T_SAN); |
0365e6e4 | 6618 | rtnl_unlock(); |
7fa7c9dc AD |
6619 | |
6620 | /* update SAN MAC vmdq pool selection */ | |
6621 | hw->mac.ops.set_vmdq_san_mac(hw, VMDQ_P(0)); | |
0365e6e4 PW |
6622 | } |
6623 | return err; | |
6624 | } | |
6625 | ||
6626 | /** | |
6627 | * ixgbe_del_sanmac_netdev - Removes the SAN MAC address to the corresponding | |
31278e71 | 6628 | * netdev->dev_addrs |
0365e6e4 PW |
6629 | * @netdev: network interface device structure |
6630 | * | |
6631 | * Returns non-zero on failure | |
6632 | **/ | |
6633 | static int ixgbe_del_sanmac_netdev(struct net_device *dev) | |
6634 | { | |
6635 | int err = 0; | |
6636 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
6637 | struct ixgbe_mac_info *mac = &adapter->hw.mac; | |
6638 | ||
6639 | if (is_valid_ether_addr(mac->san_addr)) { | |
6640 | rtnl_lock(); | |
6641 | err = dev_addr_del(dev, mac->san_addr, NETDEV_HW_ADDR_T_SAN); | |
6642 | rtnl_unlock(); | |
6643 | } | |
6644 | return err; | |
6645 | } | |
6646 | ||
9a799d71 AK |
6647 | #ifdef CONFIG_NET_POLL_CONTROLLER |
6648 | /* | |
6649 | * Polling 'interrupt' - used by things like netconsole to send skbs | |
6650 | * without having to re-enable interrupts. It's not called while | |
6651 | * the interrupt routine is executing. | |
6652 | */ | |
6653 | static void ixgbe_netpoll(struct net_device *netdev) | |
6654 | { | |
6655 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
8f9a7167 | 6656 | int i; |
9a799d71 | 6657 | |
1a647bd2 AD |
6658 | /* if interface is down do nothing */ |
6659 | if (test_bit(__IXGBE_DOWN, &adapter->state)) | |
6660 | return; | |
6661 | ||
9a799d71 | 6662 | adapter->flags |= IXGBE_FLAG_IN_NETPOLL; |
8f9a7167 | 6663 | if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { |
49c7ffbe AD |
6664 | for (i = 0; i < adapter->num_q_vectors; i++) |
6665 | ixgbe_msix_clean_rings(0, adapter->q_vector[i]); | |
8f9a7167 PWJ |
6666 | } else { |
6667 | ixgbe_intr(adapter->pdev->irq, netdev); | |
6668 | } | |
9a799d71 | 6669 | adapter->flags &= ~IXGBE_FLAG_IN_NETPOLL; |
9a799d71 | 6670 | } |
9a799d71 | 6671 | |
581330ba | 6672 | #endif |
de1036b1 ED |
6673 | static struct rtnl_link_stats64 *ixgbe_get_stats64(struct net_device *netdev, |
6674 | struct rtnl_link_stats64 *stats) | |
6675 | { | |
6676 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
6677 | int i; | |
6678 | ||
1a51502b | 6679 | rcu_read_lock(); |
de1036b1 | 6680 | for (i = 0; i < adapter->num_rx_queues; i++) { |
1a51502b | 6681 | struct ixgbe_ring *ring = ACCESS_ONCE(adapter->rx_ring[i]); |
de1036b1 ED |
6682 | u64 bytes, packets; |
6683 | unsigned int start; | |
6684 | ||
1a51502b ED |
6685 | if (ring) { |
6686 | do { | |
6687 | start = u64_stats_fetch_begin_bh(&ring->syncp); | |
6688 | packets = ring->stats.packets; | |
6689 | bytes = ring->stats.bytes; | |
6690 | } while (u64_stats_fetch_retry_bh(&ring->syncp, start)); | |
6691 | stats->rx_packets += packets; | |
6692 | stats->rx_bytes += bytes; | |
6693 | } | |
de1036b1 | 6694 | } |
1ac9ad13 ED |
6695 | |
6696 | for (i = 0; i < adapter->num_tx_queues; i++) { | |
6697 | struct ixgbe_ring *ring = ACCESS_ONCE(adapter->tx_ring[i]); | |
6698 | u64 bytes, packets; | |
6699 | unsigned int start; | |
6700 | ||
6701 | if (ring) { | |
6702 | do { | |
6703 | start = u64_stats_fetch_begin_bh(&ring->syncp); | |
6704 | packets = ring->stats.packets; | |
6705 | bytes = ring->stats.bytes; | |
6706 | } while (u64_stats_fetch_retry_bh(&ring->syncp, start)); | |
6707 | stats->tx_packets += packets; | |
6708 | stats->tx_bytes += bytes; | |
6709 | } | |
6710 | } | |
1a51502b | 6711 | rcu_read_unlock(); |
de1036b1 ED |
6712 | /* following stats updated by ixgbe_watchdog_task() */ |
6713 | stats->multicast = netdev->stats.multicast; | |
6714 | stats->rx_errors = netdev->stats.rx_errors; | |
6715 | stats->rx_length_errors = netdev->stats.rx_length_errors; | |
6716 | stats->rx_crc_errors = netdev->stats.rx_crc_errors; | |
6717 | stats->rx_missed_errors = netdev->stats.rx_missed_errors; | |
6718 | return stats; | |
6719 | } | |
6720 | ||
8af3c33f | 6721 | #ifdef CONFIG_IXGBE_DCB |
49ce9c2c BH |
6722 | /** |
6723 | * ixgbe_validate_rtr - verify 802.1Qp to Rx packet buffer mapping is valid. | |
6724 | * @adapter: pointer to ixgbe_adapter | |
8b1c0b24 JF |
6725 | * @tc: number of traffic classes currently enabled |
6726 | * | |
6727 | * Configure a valid 802.1Qp to Rx packet buffer mapping ie confirm | |
6728 | * 802.1Q priority maps to a packet buffer that exists. | |
6729 | */ | |
6730 | static void ixgbe_validate_rtr(struct ixgbe_adapter *adapter, u8 tc) | |
6731 | { | |
6732 | struct ixgbe_hw *hw = &adapter->hw; | |
6733 | u32 reg, rsave; | |
6734 | int i; | |
6735 | ||
6736 | /* 82598 have a static priority to TC mapping that can not | |
6737 | * be changed so no validation is needed. | |
6738 | */ | |
6739 | if (hw->mac.type == ixgbe_mac_82598EB) | |
6740 | return; | |
6741 | ||
6742 | reg = IXGBE_READ_REG(hw, IXGBE_RTRUP2TC); | |
6743 | rsave = reg; | |
6744 | ||
6745 | for (i = 0; i < MAX_TRAFFIC_CLASS; i++) { | |
6746 | u8 up2tc = reg >> (i * IXGBE_RTRUP2TC_UP_SHIFT); | |
6747 | ||
6748 | /* If up2tc is out of bounds default to zero */ | |
6749 | if (up2tc > tc) | |
6750 | reg &= ~(0x7 << IXGBE_RTRUP2TC_UP_SHIFT); | |
6751 | } | |
6752 | ||
6753 | if (reg != rsave) | |
6754 | IXGBE_WRITE_REG(hw, IXGBE_RTRUP2TC, reg); | |
6755 | ||
6756 | return; | |
6757 | } | |
6758 | ||
02debdc9 AD |
6759 | /** |
6760 | * ixgbe_set_prio_tc_map - Configure netdev prio tc map | |
6761 | * @adapter: Pointer to adapter struct | |
6762 | * | |
6763 | * Populate the netdev user priority to tc map | |
6764 | */ | |
6765 | static void ixgbe_set_prio_tc_map(struct ixgbe_adapter *adapter) | |
6766 | { | |
6767 | struct net_device *dev = adapter->netdev; | |
6768 | struct ixgbe_dcb_config *dcb_cfg = &adapter->dcb_cfg; | |
6769 | struct ieee_ets *ets = adapter->ixgbe_ieee_ets; | |
6770 | u8 prio; | |
6771 | ||
6772 | for (prio = 0; prio < MAX_USER_PRIORITY; prio++) { | |
6773 | u8 tc = 0; | |
6774 | ||
6775 | if (adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE) | |
6776 | tc = ixgbe_dcb_get_tc_from_up(dcb_cfg, 0, prio); | |
6777 | else if (ets) | |
6778 | tc = ets->prio_tc[prio]; | |
6779 | ||
6780 | netdev_set_prio_tc_map(dev, prio, tc); | |
6781 | } | |
6782 | } | |
6783 | ||
49ce9c2c BH |
6784 | /** |
6785 | * ixgbe_setup_tc - configure net_device for multiple traffic classes | |
8b1c0b24 JF |
6786 | * |
6787 | * @netdev: net device to configure | |
6788 | * @tc: number of traffic classes to enable | |
6789 | */ | |
6790 | int ixgbe_setup_tc(struct net_device *dev, u8 tc) | |
6791 | { | |
8b1c0b24 JF |
6792 | struct ixgbe_adapter *adapter = netdev_priv(dev); |
6793 | struct ixgbe_hw *hw = &adapter->hw; | |
8b1c0b24 | 6794 | |
8b1c0b24 | 6795 | /* Hardware supports up to 8 traffic classes */ |
4de2a022 | 6796 | if (tc > adapter->dcb_cfg.num_tcs.pg_tcs || |
581330ba AD |
6797 | (hw->mac.type == ixgbe_mac_82598EB && |
6798 | tc < MAX_TRAFFIC_CLASS)) | |
8b1c0b24 JF |
6799 | return -EINVAL; |
6800 | ||
6801 | /* Hardware has to reinitialize queues and interrupts to | |
52f33af8 | 6802 | * match packet buffer alignment. Unfortunately, the |
8b1c0b24 JF |
6803 | * hardware is not flexible enough to do this dynamically. |
6804 | */ | |
6805 | if (netif_running(dev)) | |
6806 | ixgbe_close(dev); | |
6807 | ixgbe_clear_interrupt_scheme(adapter); | |
6808 | ||
e7589eab | 6809 | if (tc) { |
8b1c0b24 | 6810 | netdev_set_num_tc(dev, tc); |
02debdc9 AD |
6811 | ixgbe_set_prio_tc_map(adapter); |
6812 | ||
e7589eab | 6813 | adapter->flags |= IXGBE_FLAG_DCB_ENABLED; |
e7589eab | 6814 | |
943561d3 AD |
6815 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) { |
6816 | adapter->last_lfc_mode = adapter->hw.fc.requested_mode; | |
e7589eab | 6817 | adapter->hw.fc.requested_mode = ixgbe_fc_none; |
943561d3 | 6818 | } |
e7589eab | 6819 | } else { |
8b1c0b24 | 6820 | netdev_reset_tc(dev); |
02debdc9 | 6821 | |
943561d3 AD |
6822 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) |
6823 | adapter->hw.fc.requested_mode = adapter->last_lfc_mode; | |
e7589eab JF |
6824 | |
6825 | adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED; | |
e7589eab JF |
6826 | |
6827 | adapter->temp_dcb_cfg.pfc_mode_enable = false; | |
6828 | adapter->dcb_cfg.pfc_mode_enable = false; | |
6829 | } | |
6830 | ||
8b1c0b24 JF |
6831 | ixgbe_init_interrupt_scheme(adapter); |
6832 | ixgbe_validate_rtr(adapter, tc); | |
6833 | if (netif_running(dev)) | |
6834 | ixgbe_open(dev); | |
6835 | ||
6836 | return 0; | |
6837 | } | |
de1036b1 | 6838 | |
8af3c33f | 6839 | #endif /* CONFIG_IXGBE_DCB */ |
da36b647 GR |
6840 | #ifdef CONFIG_PCI_IOV |
6841 | void ixgbe_sriov_reinit(struct ixgbe_adapter *adapter) | |
6842 | { | |
6843 | struct net_device *netdev = adapter->netdev; | |
6844 | ||
6845 | rtnl_lock(); | |
6846 | #ifdef CONFIG_IXGBE_DCB | |
6847 | ixgbe_setup_tc(netdev, netdev_get_num_tc(netdev)); | |
6848 | #else | |
6849 | if (netif_running(netdev)) | |
6850 | ixgbe_close(netdev); | |
6851 | ixgbe_clear_interrupt_scheme(adapter); | |
6852 | ixgbe_init_interrupt_scheme(adapter); | |
6853 | if (netif_running(netdev)) | |
6854 | ixgbe_open(netdev); | |
6855 | #endif | |
6856 | rtnl_unlock(); | |
6857 | } | |
6858 | ||
6859 | #endif | |
082757af DS |
6860 | void ixgbe_do_reset(struct net_device *netdev) |
6861 | { | |
6862 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
6863 | ||
6864 | if (netif_running(netdev)) | |
6865 | ixgbe_reinit_locked(adapter); | |
6866 | else | |
6867 | ixgbe_reset(adapter); | |
6868 | } | |
6869 | ||
c8f44aff | 6870 | static netdev_features_t ixgbe_fix_features(struct net_device *netdev, |
567d2de2 | 6871 | netdev_features_t features) |
082757af DS |
6872 | { |
6873 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
6874 | ||
082757af | 6875 | /* If Rx checksum is disabled, then RSC/LRO should also be disabled */ |
567d2de2 AD |
6876 | if (!(features & NETIF_F_RXCSUM)) |
6877 | features &= ~NETIF_F_LRO; | |
082757af | 6878 | |
567d2de2 AD |
6879 | /* Turn off LRO if not RSC capable */ |
6880 | if (!(adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE)) | |
6881 | features &= ~NETIF_F_LRO; | |
8e2813f5 | 6882 | |
567d2de2 | 6883 | return features; |
082757af DS |
6884 | } |
6885 | ||
c8f44aff | 6886 | static int ixgbe_set_features(struct net_device *netdev, |
567d2de2 | 6887 | netdev_features_t features) |
082757af DS |
6888 | { |
6889 | struct ixgbe_adapter *adapter = netdev_priv(netdev); | |
567d2de2 | 6890 | netdev_features_t changed = netdev->features ^ features; |
082757af DS |
6891 | bool need_reset = false; |
6892 | ||
082757af | 6893 | /* Make sure RSC matches LRO, reset if change */ |
567d2de2 AD |
6894 | if (!(features & NETIF_F_LRO)) { |
6895 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) | |
082757af | 6896 | need_reset = true; |
567d2de2 AD |
6897 | adapter->flags2 &= ~IXGBE_FLAG2_RSC_ENABLED; |
6898 | } else if ((adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE) && | |
6899 | !(adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED)) { | |
6900 | if (adapter->rx_itr_setting == 1 || | |
6901 | adapter->rx_itr_setting > IXGBE_MIN_RSC_ITR) { | |
6902 | adapter->flags2 |= IXGBE_FLAG2_RSC_ENABLED; | |
6903 | need_reset = true; | |
6904 | } else if ((changed ^ features) & NETIF_F_LRO) { | |
6905 | e_info(probe, "rx-usecs set too low, " | |
6906 | "disabling RSC\n"); | |
082757af DS |
6907 | } |
6908 | } | |
6909 | ||
6910 | /* | |
6911 | * Check if Flow Director n-tuple support was enabled or disabled. If | |
6912 | * the state changed, we need to reset. | |
6913 | */ | |
39cb681b AD |
6914 | switch (features & NETIF_F_NTUPLE) { |
6915 | case NETIF_F_NTUPLE: | |
567d2de2 | 6916 | /* turn off ATR, enable perfect filters and reset */ |
39cb681b AD |
6917 | if (!(adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)) |
6918 | need_reset = true; | |
6919 | ||
567d2de2 AD |
6920 | adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE; |
6921 | adapter->flags |= IXGBE_FLAG_FDIR_PERFECT_CAPABLE; | |
39cb681b AD |
6922 | break; |
6923 | default: | |
6924 | /* turn off perfect filters, enable ATR and reset */ | |
6925 | if (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) | |
6926 | need_reset = true; | |
6927 | ||
6928 | adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE; | |
6929 | ||
6930 | /* We cannot enable ATR if SR-IOV is enabled */ | |
6931 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
6932 | break; | |
6933 | ||
6934 | /* We cannot enable ATR if we have 2 or more traffic classes */ | |
6935 | if (netdev_get_num_tc(netdev) > 1) | |
6936 | break; | |
6937 | ||
6938 | /* We cannot enable ATR if RSS is disabled */ | |
6939 | if (adapter->ring_feature[RING_F_RSS].limit <= 1) | |
6940 | break; | |
6941 | ||
6942 | /* A sample rate of 0 indicates ATR disabled */ | |
6943 | if (!adapter->atr_sample_rate) | |
6944 | break; | |
6945 | ||
6946 | adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE; | |
6947 | break; | |
082757af DS |
6948 | } |
6949 | ||
146d4cc9 JF |
6950 | if (features & NETIF_F_HW_VLAN_RX) |
6951 | ixgbe_vlan_strip_enable(adapter); | |
6952 | else | |
6953 | ixgbe_vlan_strip_disable(adapter); | |
6954 | ||
3f2d1c0f BG |
6955 | if (changed & NETIF_F_RXALL) |
6956 | need_reset = true; | |
6957 | ||
567d2de2 | 6958 | netdev->features = features; |
082757af DS |
6959 | if (need_reset) |
6960 | ixgbe_do_reset(netdev); | |
6961 | ||
6962 | return 0; | |
082757af DS |
6963 | } |
6964 | ||
edc7d573 | 6965 | static int ixgbe_ndo_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], |
0f4b0add | 6966 | struct net_device *dev, |
6b6e2725 | 6967 | const unsigned char *addr, |
0f4b0add JF |
6968 | u16 flags) |
6969 | { | |
6970 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
95447461 JF |
6971 | int err; |
6972 | ||
6973 | if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) | |
6974 | return -EOPNOTSUPP; | |
0f4b0add | 6975 | |
b1ac1ef7 JF |
6976 | /* Hardware does not support aging addresses so if a |
6977 | * ndm_state is given only allow permanent addresses | |
6978 | */ | |
6979 | if (ndm->ndm_state && !(ndm->ndm_state & NUD_PERMANENT)) { | |
0f4b0add JF |
6980 | pr_info("%s: FDB only supports static addresses\n", |
6981 | ixgbe_driver_name); | |
6982 | return -EINVAL; | |
6983 | } | |
6984 | ||
46acc460 | 6985 | if (is_unicast_ether_addr(addr) || is_link_local_ether_addr(addr)) { |
95447461 JF |
6986 | u32 rar_uc_entries = IXGBE_MAX_PF_MACVLANS; |
6987 | ||
6988 | if (netdev_uc_count(dev) < rar_uc_entries) | |
0f4b0add | 6989 | err = dev_uc_add_excl(dev, addr); |
0f4b0add | 6990 | else |
95447461 JF |
6991 | err = -ENOMEM; |
6992 | } else if (is_multicast_ether_addr(addr)) { | |
6993 | err = dev_mc_add_excl(dev, addr); | |
6994 | } else { | |
6995 | err = -EINVAL; | |
0f4b0add JF |
6996 | } |
6997 | ||
6998 | /* Only return duplicate errors if NLM_F_EXCL is set */ | |
6999 | if (err == -EEXIST && !(flags & NLM_F_EXCL)) | |
7000 | err = 0; | |
7001 | ||
7002 | return err; | |
7003 | } | |
7004 | ||
1690be63 | 7005 | static int ixgbe_ndo_fdb_del(struct ndmsg *ndm, struct nlattr *tb[], |
0f4b0add | 7006 | struct net_device *dev, |
6b6e2725 | 7007 | const unsigned char *addr) |
0f4b0add JF |
7008 | { |
7009 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
7010 | int err = -EOPNOTSUPP; | |
7011 | ||
7012 | if (ndm->ndm_state & NUD_PERMANENT) { | |
7013 | pr_info("%s: FDB only supports static addresses\n", | |
7014 | ixgbe_driver_name); | |
7015 | return -EINVAL; | |
7016 | } | |
7017 | ||
7018 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { | |
7019 | if (is_unicast_ether_addr(addr)) | |
7020 | err = dev_uc_del(dev, addr); | |
7021 | else if (is_multicast_ether_addr(addr)) | |
7022 | err = dev_mc_del(dev, addr); | |
7023 | else | |
7024 | err = -EINVAL; | |
7025 | } | |
7026 | ||
7027 | return err; | |
7028 | } | |
7029 | ||
7030 | static int ixgbe_ndo_fdb_dump(struct sk_buff *skb, | |
7031 | struct netlink_callback *cb, | |
7032 | struct net_device *dev, | |
7033 | int idx) | |
7034 | { | |
7035 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
7036 | ||
7037 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) | |
7038 | idx = ndo_dflt_fdb_dump(skb, cb, dev, idx); | |
7039 | ||
7040 | return idx; | |
7041 | } | |
7042 | ||
815cccbf JF |
7043 | static int ixgbe_ndo_bridge_setlink(struct net_device *dev, |
7044 | struct nlmsghdr *nlh) | |
7045 | { | |
7046 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
7047 | struct nlattr *attr, *br_spec; | |
7048 | int rem; | |
7049 | ||
7050 | if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) | |
7051 | return -EOPNOTSUPP; | |
7052 | ||
7053 | br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC); | |
7054 | ||
7055 | nla_for_each_nested(attr, br_spec, rem) { | |
7056 | __u16 mode; | |
7057 | u32 reg = 0; | |
7058 | ||
7059 | if (nla_type(attr) != IFLA_BRIDGE_MODE) | |
7060 | continue; | |
7061 | ||
7062 | mode = nla_get_u16(attr); | |
9b735984 | 7063 | if (mode == BRIDGE_MODE_VEPA) { |
815cccbf | 7064 | reg = 0; |
9b735984 GR |
7065 | adapter->flags2 &= ~IXGBE_FLAG2_BRIDGE_MODE_VEB; |
7066 | } else if (mode == BRIDGE_MODE_VEB) { | |
815cccbf | 7067 | reg = IXGBE_PFDTXGSWC_VT_LBEN; |
9b735984 GR |
7068 | adapter->flags2 |= IXGBE_FLAG2_BRIDGE_MODE_VEB; |
7069 | } else | |
815cccbf JF |
7070 | return -EINVAL; |
7071 | ||
7072 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_PFDTXGSWC, reg); | |
7073 | ||
7074 | e_info(drv, "enabling bridge mode: %s\n", | |
7075 | mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB"); | |
7076 | } | |
7077 | ||
7078 | return 0; | |
7079 | } | |
7080 | ||
7081 | static int ixgbe_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, | |
6cbdceeb VY |
7082 | struct net_device *dev, |
7083 | u32 filter_mask) | |
815cccbf JF |
7084 | { |
7085 | struct ixgbe_adapter *adapter = netdev_priv(dev); | |
7086 | u16 mode; | |
7087 | ||
7088 | if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)) | |
7089 | return 0; | |
7090 | ||
9b735984 | 7091 | if (adapter->flags2 & IXGBE_FLAG2_BRIDGE_MODE_VEB) |
815cccbf JF |
7092 | mode = BRIDGE_MODE_VEB; |
7093 | else | |
7094 | mode = BRIDGE_MODE_VEPA; | |
7095 | ||
7096 | return ndo_dflt_bridge_getlink(skb, pid, seq, dev, mode); | |
7097 | } | |
7098 | ||
0edc3527 | 7099 | static const struct net_device_ops ixgbe_netdev_ops = { |
e8e9f696 | 7100 | .ndo_open = ixgbe_open, |
0edc3527 | 7101 | .ndo_stop = ixgbe_close, |
00829823 | 7102 | .ndo_start_xmit = ixgbe_xmit_frame, |
09a3b1f8 | 7103 | .ndo_select_queue = ixgbe_select_queue, |
581330ba | 7104 | .ndo_set_rx_mode = ixgbe_set_rx_mode, |
0edc3527 SH |
7105 | .ndo_validate_addr = eth_validate_addr, |
7106 | .ndo_set_mac_address = ixgbe_set_mac, | |
7107 | .ndo_change_mtu = ixgbe_change_mtu, | |
7108 | .ndo_tx_timeout = ixgbe_tx_timeout, | |
0edc3527 SH |
7109 | .ndo_vlan_rx_add_vid = ixgbe_vlan_rx_add_vid, |
7110 | .ndo_vlan_rx_kill_vid = ixgbe_vlan_rx_kill_vid, | |
6b73e10d | 7111 | .ndo_do_ioctl = ixgbe_ioctl, |
7f01648a GR |
7112 | .ndo_set_vf_mac = ixgbe_ndo_set_vf_mac, |
7113 | .ndo_set_vf_vlan = ixgbe_ndo_set_vf_vlan, | |
7114 | .ndo_set_vf_tx_rate = ixgbe_ndo_set_vf_bw, | |
581330ba | 7115 | .ndo_set_vf_spoofchk = ixgbe_ndo_set_vf_spoofchk, |
7f01648a | 7116 | .ndo_get_vf_config = ixgbe_ndo_get_vf_config, |
de1036b1 | 7117 | .ndo_get_stats64 = ixgbe_get_stats64, |
8af3c33f | 7118 | #ifdef CONFIG_IXGBE_DCB |
24095aa3 | 7119 | .ndo_setup_tc = ixgbe_setup_tc, |
8af3c33f | 7120 | #endif |
0edc3527 SH |
7121 | #ifdef CONFIG_NET_POLL_CONTROLLER |
7122 | .ndo_poll_controller = ixgbe_netpoll, | |
7123 | #endif | |
332d4a7d YZ |
7124 | #ifdef IXGBE_FCOE |
7125 | .ndo_fcoe_ddp_setup = ixgbe_fcoe_ddp_get, | |
68a683cf | 7126 | .ndo_fcoe_ddp_target = ixgbe_fcoe_ddp_target, |
332d4a7d | 7127 | .ndo_fcoe_ddp_done = ixgbe_fcoe_ddp_put, |
8450ff8c YZ |
7128 | .ndo_fcoe_enable = ixgbe_fcoe_enable, |
7129 | .ndo_fcoe_disable = ixgbe_fcoe_disable, | |
61a1fa10 | 7130 | .ndo_fcoe_get_wwn = ixgbe_fcoe_get_wwn, |
ea81875a | 7131 | .ndo_fcoe_get_hbainfo = ixgbe_fcoe_get_hbainfo, |
332d4a7d | 7132 | #endif /* IXGBE_FCOE */ |
082757af DS |
7133 | .ndo_set_features = ixgbe_set_features, |
7134 | .ndo_fix_features = ixgbe_fix_features, | |
0f4b0add JF |
7135 | .ndo_fdb_add = ixgbe_ndo_fdb_add, |
7136 | .ndo_fdb_del = ixgbe_ndo_fdb_del, | |
7137 | .ndo_fdb_dump = ixgbe_ndo_fdb_dump, | |
815cccbf JF |
7138 | .ndo_bridge_setlink = ixgbe_ndo_bridge_setlink, |
7139 | .ndo_bridge_getlink = ixgbe_ndo_bridge_getlink, | |
0edc3527 SH |
7140 | }; |
7141 | ||
8e2813f5 JK |
7142 | /** |
7143 | * ixgbe_wol_supported - Check whether device supports WoL | |
7144 | * @hw: hw specific details | |
7145 | * @device_id: the device ID | |
7146 | * @subdev_id: the subsystem device ID | |
7147 | * | |
7148 | * This function is used by probe and ethtool to determine | |
7149 | * which devices have WoL support | |
7150 | * | |
7151 | **/ | |
7152 | int ixgbe_wol_supported(struct ixgbe_adapter *adapter, u16 device_id, | |
7153 | u16 subdevice_id) | |
7154 | { | |
7155 | struct ixgbe_hw *hw = &adapter->hw; | |
7156 | u16 wol_cap = adapter->eeprom_cap & IXGBE_DEVICE_CAPS_WOL_MASK; | |
7157 | int is_wol_supported = 0; | |
7158 | ||
7159 | switch (device_id) { | |
7160 | case IXGBE_DEV_ID_82599_SFP: | |
7161 | /* Only these subdevices could supports WOL */ | |
7162 | switch (subdevice_id) { | |
7163 | case IXGBE_SUBDEV_ID_82599_560FLR: | |
7164 | /* only support first port */ | |
7165 | if (hw->bus.func != 0) | |
7166 | break; | |
7167 | case IXGBE_SUBDEV_ID_82599_SFP: | |
b6dfd939 | 7168 | case IXGBE_SUBDEV_ID_82599_RNDC: |
f8a06c2c | 7169 | case IXGBE_SUBDEV_ID_82599_ECNA_DP: |
8e2813f5 JK |
7170 | is_wol_supported = 1; |
7171 | break; | |
7172 | } | |
7173 | break; | |
7174 | case IXGBE_DEV_ID_82599_COMBO_BACKPLANE: | |
7175 | /* All except this subdevice support WOL */ | |
7176 | if (subdevice_id != IXGBE_SUBDEV_ID_82599_KX4_KR_MEZZ) | |
7177 | is_wol_supported = 1; | |
7178 | break; | |
7179 | case IXGBE_DEV_ID_82599_KX4: | |
7180 | is_wol_supported = 1; | |
7181 | break; | |
7182 | case IXGBE_DEV_ID_X540T: | |
df376f0d | 7183 | case IXGBE_DEV_ID_X540T1: |
8e2813f5 JK |
7184 | /* check eeprom to see if enabled wol */ |
7185 | if ((wol_cap == IXGBE_DEVICE_CAPS_WOL_PORT0_1) || | |
7186 | ((wol_cap == IXGBE_DEVICE_CAPS_WOL_PORT0) && | |
7187 | (hw->bus.func == 0))) { | |
7188 | is_wol_supported = 1; | |
7189 | } | |
7190 | break; | |
7191 | } | |
7192 | ||
7193 | return is_wol_supported; | |
7194 | } | |
7195 | ||
9a799d71 AK |
7196 | /** |
7197 | * ixgbe_probe - Device Initialization Routine | |
7198 | * @pdev: PCI device information struct | |
7199 | * @ent: entry in ixgbe_pci_tbl | |
7200 | * | |
7201 | * Returns 0 on success, negative on failure | |
7202 | * | |
7203 | * ixgbe_probe initializes an adapter identified by a pci_dev structure. | |
7204 | * The OS initialization, configuring of the adapter private structure, | |
7205 | * and a hardware reset occur. | |
7206 | **/ | |
1dd06ae8 | 7207 | static int ixgbe_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
9a799d71 AK |
7208 | { |
7209 | struct net_device *netdev; | |
7210 | struct ixgbe_adapter *adapter = NULL; | |
7211 | struct ixgbe_hw *hw; | |
7212 | const struct ixgbe_info *ii = ixgbe_info_tbl[ent->driver_data]; | |
9a799d71 AK |
7213 | static int cards_found; |
7214 | int i, err, pci_using_dac; | |
289700db | 7215 | u8 part_str[IXGBE_PBANUM_LENGTH]; |
c85a2618 | 7216 | unsigned int indices = num_possible_cpus(); |
3f4a6f00 | 7217 | unsigned int dcb_max = 0; |
eacd73f7 YZ |
7218 | #ifdef IXGBE_FCOE |
7219 | u16 device_caps; | |
7220 | #endif | |
289700db | 7221 | u32 eec; |
9a799d71 | 7222 | |
bded64a7 AG |
7223 | /* Catch broken hardware that put the wrong VF device ID in |
7224 | * the PCIe SR-IOV capability. | |
7225 | */ | |
7226 | if (pdev->is_virtfn) { | |
7227 | WARN(1, KERN_ERR "%s (%hx:%hx) should not be a VF!\n", | |
7228 | pci_name(pdev), pdev->vendor, pdev->device); | |
7229 | return -EINVAL; | |
7230 | } | |
7231 | ||
9ce77666 | 7232 | err = pci_enable_device_mem(pdev); |
9a799d71 AK |
7233 | if (err) |
7234 | return err; | |
7235 | ||
1b507730 NN |
7236 | if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)) && |
7237 | !dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64))) { | |
9a799d71 AK |
7238 | pci_using_dac = 1; |
7239 | } else { | |
1b507730 | 7240 | err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); |
9a799d71 | 7241 | if (err) { |
1b507730 NN |
7242 | err = dma_set_coherent_mask(&pdev->dev, |
7243 | DMA_BIT_MASK(32)); | |
9a799d71 | 7244 | if (err) { |
b8bc0421 DC |
7245 | dev_err(&pdev->dev, |
7246 | "No usable DMA configuration, aborting\n"); | |
9a799d71 AK |
7247 | goto err_dma; |
7248 | } | |
7249 | } | |
7250 | pci_using_dac = 0; | |
7251 | } | |
7252 | ||
9ce77666 | 7253 | err = pci_request_selected_regions(pdev, pci_select_bars(pdev, |
e8e9f696 | 7254 | IORESOURCE_MEM), ixgbe_driver_name); |
9a799d71 | 7255 | if (err) { |
b8bc0421 DC |
7256 | dev_err(&pdev->dev, |
7257 | "pci_request_selected_regions failed 0x%x\n", err); | |
9a799d71 AK |
7258 | goto err_pci_reg; |
7259 | } | |
7260 | ||
19d5afd4 | 7261 | pci_enable_pcie_error_reporting(pdev); |
6fabd715 | 7262 | |
9a799d71 | 7263 | pci_set_master(pdev); |
fb3b27bc | 7264 | pci_save_state(pdev); |
9a799d71 | 7265 | |
e901acd6 | 7266 | #ifdef CONFIG_IXGBE_DCB |
3f4a6f00 JF |
7267 | if (ii->mac == ixgbe_mac_82598EB) |
7268 | dcb_max = min_t(unsigned int, indices * MAX_TRAFFIC_CLASS, | |
7269 | IXGBE_MAX_RSS_INDICES); | |
7270 | else | |
7271 | dcb_max = min_t(unsigned int, indices * MAX_TRAFFIC_CLASS, | |
7272 | IXGBE_MAX_FDIR_INDICES); | |
e901acd6 JF |
7273 | #endif |
7274 | ||
c85a2618 JF |
7275 | if (ii->mac == ixgbe_mac_82598EB) |
7276 | indices = min_t(unsigned int, indices, IXGBE_MAX_RSS_INDICES); | |
7277 | else | |
7278 | indices = min_t(unsigned int, indices, IXGBE_MAX_FDIR_INDICES); | |
7279 | ||
e901acd6 | 7280 | #ifdef IXGBE_FCOE |
c85a2618 JF |
7281 | indices += min_t(unsigned int, num_possible_cpus(), |
7282 | IXGBE_MAX_FCOE_INDICES); | |
7283 | #endif | |
3f4a6f00 | 7284 | indices = max_t(unsigned int, dcb_max, indices); |
c85a2618 | 7285 | netdev = alloc_etherdev_mq(sizeof(struct ixgbe_adapter), indices); |
9a799d71 AK |
7286 | if (!netdev) { |
7287 | err = -ENOMEM; | |
7288 | goto err_alloc_etherdev; | |
7289 | } | |
7290 | ||
9a799d71 AK |
7291 | SET_NETDEV_DEV(netdev, &pdev->dev); |
7292 | ||
9a799d71 | 7293 | adapter = netdev_priv(netdev); |
c60fbb00 | 7294 | pci_set_drvdata(pdev, adapter); |
9a799d71 AK |
7295 | |
7296 | adapter->netdev = netdev; | |
7297 | adapter->pdev = pdev; | |
7298 | hw = &adapter->hw; | |
7299 | hw->back = adapter; | |
b3f4d599 | 7300 | adapter->msg_enable = netif_msg_init(debug, DEFAULT_MSG_ENABLE); |
9a799d71 | 7301 | |
05857980 | 7302 | hw->hw_addr = ioremap(pci_resource_start(pdev, 0), |
e8e9f696 | 7303 | pci_resource_len(pdev, 0)); |
9a799d71 AK |
7304 | if (!hw->hw_addr) { |
7305 | err = -EIO; | |
7306 | goto err_ioremap; | |
7307 | } | |
7308 | ||
0edc3527 | 7309 | netdev->netdev_ops = &ixgbe_netdev_ops; |
9a799d71 | 7310 | ixgbe_set_ethtool_ops(netdev); |
9a799d71 | 7311 | netdev->watchdog_timeo = 5 * HZ; |
9fe93afd | 7312 | strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1); |
9a799d71 | 7313 | |
9a799d71 AK |
7314 | adapter->bd_number = cards_found; |
7315 | ||
9a799d71 AK |
7316 | /* Setup hw api */ |
7317 | memcpy(&hw->mac.ops, ii->mac_ops, sizeof(hw->mac.ops)); | |
021230d4 | 7318 | hw->mac.type = ii->mac; |
9a799d71 | 7319 | |
c44ade9e JB |
7320 | /* EEPROM */ |
7321 | memcpy(&hw->eeprom.ops, ii->eeprom_ops, sizeof(hw->eeprom.ops)); | |
7322 | eec = IXGBE_READ_REG(hw, IXGBE_EEC); | |
7323 | /* If EEPROM is valid (bit 8 = 1), use default otherwise use bit bang */ | |
7324 | if (!(eec & (1 << 8))) | |
7325 | hw->eeprom.ops.read = &ixgbe_read_eeprom_bit_bang_generic; | |
7326 | ||
7327 | /* PHY */ | |
7328 | memcpy(&hw->phy.ops, ii->phy_ops, sizeof(hw->phy.ops)); | |
c4900be0 | 7329 | hw->phy.sfp_type = ixgbe_sfp_type_unknown; |
6b73e10d BH |
7330 | /* ixgbe_identify_phy_generic will set prtad and mmds properly */ |
7331 | hw->phy.mdio.prtad = MDIO_PRTAD_NONE; | |
7332 | hw->phy.mdio.mmds = 0; | |
7333 | hw->phy.mdio.mode_support = MDIO_SUPPORTS_C45 | MDIO_EMULATE_C22; | |
7334 | hw->phy.mdio.dev = netdev; | |
7335 | hw->phy.mdio.mdio_read = ixgbe_mdio_read; | |
7336 | hw->phy.mdio.mdio_write = ixgbe_mdio_write; | |
c4900be0 | 7337 | |
8ca783ab | 7338 | ii->get_invariants(hw); |
9a799d71 AK |
7339 | |
7340 | /* setup the private structure */ | |
7341 | err = ixgbe_sw_init(adapter); | |
7342 | if (err) | |
7343 | goto err_sw_init; | |
7344 | ||
e86bff0e | 7345 | /* Make it possible the adapter to be woken up via WOL */ |
b93a2226 DS |
7346 | switch (adapter->hw.mac.type) { |
7347 | case ixgbe_mac_82599EB: | |
7348 | case ixgbe_mac_X540: | |
e86bff0e | 7349 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); |
b93a2226 DS |
7350 | break; |
7351 | default: | |
7352 | break; | |
7353 | } | |
e86bff0e | 7354 | |
bf069c97 DS |
7355 | /* |
7356 | * If there is a fan on this device and it has failed log the | |
7357 | * failure. | |
7358 | */ | |
7359 | if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) { | |
7360 | u32 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); | |
7361 | if (esdp & IXGBE_ESDP_SDP1) | |
396e799c | 7362 | e_crit(probe, "Fan has stopped, replace the adapter\n"); |
bf069c97 DS |
7363 | } |
7364 | ||
8ef78adc PWJ |
7365 | if (allow_unsupported_sfp) |
7366 | hw->allow_unsupported_sfp = allow_unsupported_sfp; | |
7367 | ||
c44ade9e | 7368 | /* reset_hw fills in the perm_addr as well */ |
119fc60a | 7369 | hw->phy.reset_if_overtemp = true; |
c44ade9e | 7370 | err = hw->mac.ops.reset_hw(hw); |
119fc60a | 7371 | hw->phy.reset_if_overtemp = false; |
8ca783ab DS |
7372 | if (err == IXGBE_ERR_SFP_NOT_PRESENT && |
7373 | hw->mac.type == ixgbe_mac_82598EB) { | |
8ca783ab DS |
7374 | err = 0; |
7375 | } else if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) { | |
7086400d | 7376 | e_dev_err("failed to load because an unsupported SFP+ " |
849c4542 ET |
7377 | "module type was detected.\n"); |
7378 | e_dev_err("Reload the driver after installing a supported " | |
7379 | "module.\n"); | |
04f165ef PW |
7380 | goto err_sw_init; |
7381 | } else if (err) { | |
849c4542 | 7382 | e_dev_err("HW Init failed: %d\n", err); |
c44ade9e JB |
7383 | goto err_sw_init; |
7384 | } | |
7385 | ||
99d74487 | 7386 | #ifdef CONFIG_PCI_IOV |
60a1a680 GR |
7387 | /* SR-IOV not supported on the 82598 */ |
7388 | if (adapter->hw.mac.type == ixgbe_mac_82598EB) | |
7389 | goto skip_sriov; | |
7390 | /* Mailbox */ | |
7391 | ixgbe_init_mbx_params_pf(hw); | |
7392 | memcpy(&hw->mbx.ops, ii->mbx_ops, sizeof(hw->mbx.ops)); | |
7393 | ixgbe_enable_sriov(adapter); | |
43dc4e01 | 7394 | pci_sriov_set_totalvfs(pdev, 63); |
60a1a680 | 7395 | skip_sriov: |
1cdd1ec8 | 7396 | |
99d74487 | 7397 | #endif |
396e799c | 7398 | netdev->features = NETIF_F_SG | |
e8e9f696 | 7399 | NETIF_F_IP_CSUM | |
082757af | 7400 | NETIF_F_IPV6_CSUM | |
e8e9f696 JP |
7401 | NETIF_F_HW_VLAN_TX | |
7402 | NETIF_F_HW_VLAN_RX | | |
082757af DS |
7403 | NETIF_F_HW_VLAN_FILTER | |
7404 | NETIF_F_TSO | | |
7405 | NETIF_F_TSO6 | | |
082757af DS |
7406 | NETIF_F_RXHASH | |
7407 | NETIF_F_RXCSUM; | |
9a799d71 | 7408 | |
082757af | 7409 | netdev->hw_features = netdev->features; |
ad31c402 | 7410 | |
58be7666 DS |
7411 | switch (adapter->hw.mac.type) { |
7412 | case ixgbe_mac_82599EB: | |
7413 | case ixgbe_mac_X540: | |
45a5ead0 | 7414 | netdev->features |= NETIF_F_SCTP_CSUM; |
082757af DS |
7415 | netdev->hw_features |= NETIF_F_SCTP_CSUM | |
7416 | NETIF_F_NTUPLE; | |
58be7666 DS |
7417 | break; |
7418 | default: | |
7419 | break; | |
7420 | } | |
45a5ead0 | 7421 | |
3f2d1c0f BG |
7422 | netdev->hw_features |= NETIF_F_RXALL; |
7423 | ||
ad31c402 JK |
7424 | netdev->vlan_features |= NETIF_F_TSO; |
7425 | netdev->vlan_features |= NETIF_F_TSO6; | |
22f32b7a | 7426 | netdev->vlan_features |= NETIF_F_IP_CSUM; |
cd1da503 | 7427 | netdev->vlan_features |= NETIF_F_IPV6_CSUM; |
ad31c402 JK |
7428 | netdev->vlan_features |= NETIF_F_SG; |
7429 | ||
01789349 | 7430 | netdev->priv_flags |= IFF_UNICAST_FLT; |
f43f313e | 7431 | netdev->priv_flags |= IFF_SUPP_NOFCS; |
01789349 | 7432 | |
7a6b6f51 | 7433 | #ifdef CONFIG_IXGBE_DCB |
2f90b865 AD |
7434 | netdev->dcbnl_ops = &dcbnl_ops; |
7435 | #endif | |
7436 | ||
eacd73f7 | 7437 | #ifdef IXGBE_FCOE |
0d551589 | 7438 | if (adapter->flags & IXGBE_FLAG_FCOE_CAPABLE) { |
eacd73f7 YZ |
7439 | if (hw->mac.ops.get_device_caps) { |
7440 | hw->mac.ops.get_device_caps(hw, &device_caps); | |
0d551589 YZ |
7441 | if (device_caps & IXGBE_DEVICE_CAPS_FCOE_OFFLOADS) |
7442 | adapter->flags &= ~IXGBE_FLAG_FCOE_CAPABLE; | |
eacd73f7 | 7443 | } |
7c8ae65a AD |
7444 | |
7445 | adapter->ring_feature[RING_F_FCOE].limit = IXGBE_FCRETA_SIZE; | |
7446 | ||
a58915c7 AD |
7447 | netdev->features |= NETIF_F_FSO | |
7448 | NETIF_F_FCOE_CRC; | |
7449 | ||
7c8ae65a AD |
7450 | netdev->vlan_features |= NETIF_F_FSO | |
7451 | NETIF_F_FCOE_CRC | | |
7452 | NETIF_F_FCOE_MTU; | |
5e09d7f6 | 7453 | } |
eacd73f7 | 7454 | #endif /* IXGBE_FCOE */ |
7b872a55 | 7455 | if (pci_using_dac) { |
9a799d71 | 7456 | netdev->features |= NETIF_F_HIGHDMA; |
7b872a55 YZ |
7457 | netdev->vlan_features |= NETIF_F_HIGHDMA; |
7458 | } | |
9a799d71 | 7459 | |
082757af DS |
7460 | if (adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE) |
7461 | netdev->hw_features |= NETIF_F_LRO; | |
0c19d6af | 7462 | if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) |
f8212f97 AD |
7463 | netdev->features |= NETIF_F_LRO; |
7464 | ||
9a799d71 | 7465 | /* make sure the EEPROM is good */ |
c44ade9e | 7466 | if (hw->eeprom.ops.validate_checksum(hw, NULL) < 0) { |
849c4542 | 7467 | e_dev_err("The EEPROM Checksum Is Not Valid\n"); |
9a799d71 | 7468 | err = -EIO; |
35937c05 | 7469 | goto err_sw_init; |
9a799d71 AK |
7470 | } |
7471 | ||
7472 | memcpy(netdev->dev_addr, hw->mac.perm_addr, netdev->addr_len); | |
9a799d71 | 7473 | |
aaeb6cdf | 7474 | if (!is_valid_ether_addr(netdev->dev_addr)) { |
849c4542 | 7475 | e_dev_err("invalid MAC address\n"); |
9a799d71 | 7476 | err = -EIO; |
35937c05 | 7477 | goto err_sw_init; |
9a799d71 AK |
7478 | } |
7479 | ||
7086400d | 7480 | setup_timer(&adapter->service_timer, &ixgbe_service_timer, |
581330ba | 7481 | (unsigned long) adapter); |
9a799d71 | 7482 | |
7086400d AD |
7483 | INIT_WORK(&adapter->service_task, ixgbe_service_task); |
7484 | clear_bit(__IXGBE_SERVICE_SCHED, &adapter->state); | |
9a799d71 | 7485 | |
021230d4 AV |
7486 | err = ixgbe_init_interrupt_scheme(adapter); |
7487 | if (err) | |
7488 | goto err_sw_init; | |
9a799d71 | 7489 | |
8e2813f5 | 7490 | /* WOL not supported for all devices */ |
c23f5b6b | 7491 | adapter->wol = 0; |
8e2813f5 JK |
7492 | hw->eeprom.ops.read(hw, 0x2c, &adapter->eeprom_cap); |
7493 | if (ixgbe_wol_supported(adapter, pdev->device, pdev->subsystem_device)) | |
9417c464 | 7494 | adapter->wol = IXGBE_WUFC_MAG; |
c23f5b6b | 7495 | |
e8e26350 PW |
7496 | device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); |
7497 | ||
15e5209f ET |
7498 | /* save off EEPROM version number */ |
7499 | hw->eeprom.ops.read(hw, 0x2e, &adapter->eeprom_verh); | |
7500 | hw->eeprom.ops.read(hw, 0x2d, &adapter->eeprom_verl); | |
7501 | ||
04f165ef PW |
7502 | /* pick up the PCI bus settings for reporting later */ |
7503 | hw->mac.ops.get_bus_info(hw); | |
7504 | ||
9a799d71 | 7505 | /* print bus type/speed/width info */ |
849c4542 | 7506 | e_dev_info("(PCI Express:%s:%s) %pM\n", |
6716344c DS |
7507 | (hw->bus.speed == ixgbe_bus_speed_5000 ? "5.0GT/s" : |
7508 | hw->bus.speed == ixgbe_bus_speed_2500 ? "2.5GT/s" : | |
e8e9f696 JP |
7509 | "Unknown"), |
7510 | (hw->bus.width == ixgbe_bus_width_pcie_x8 ? "Width x8" : | |
7511 | hw->bus.width == ixgbe_bus_width_pcie_x4 ? "Width x4" : | |
7512 | hw->bus.width == ixgbe_bus_width_pcie_x1 ? "Width x1" : | |
7513 | "Unknown"), | |
7514 | netdev->dev_addr); | |
289700db DS |
7515 | |
7516 | err = ixgbe_read_pba_string_generic(hw, part_str, IXGBE_PBANUM_LENGTH); | |
7517 | if (err) | |
9fe93afd | 7518 | strncpy(part_str, "Unknown", IXGBE_PBANUM_LENGTH); |
e8e26350 | 7519 | if (ixgbe_is_sfp(hw) && hw->phy.sfp_type != ixgbe_sfp_type_not_present) |
289700db | 7520 | e_dev_info("MAC: %d, PHY: %d, SFP+: %d, PBA No: %s\n", |
849c4542 | 7521 | hw->mac.type, hw->phy.type, hw->phy.sfp_type, |
289700db | 7522 | part_str); |
e8e26350 | 7523 | else |
289700db DS |
7524 | e_dev_info("MAC: %d, PHY: %d, PBA No: %s\n", |
7525 | hw->mac.type, hw->phy.type, part_str); | |
9a799d71 | 7526 | |
e8e26350 | 7527 | if (hw->bus.width <= ixgbe_bus_width_pcie_x4) { |
849c4542 ET |
7528 | e_dev_warn("PCI-Express bandwidth available for this card is " |
7529 | "not sufficient for optimal performance.\n"); | |
7530 | e_dev_warn("For optimal performance a x8 PCI-Express slot " | |
7531 | "is required.\n"); | |
0c254d86 AK |
7532 | } |
7533 | ||
9a799d71 | 7534 | /* reset the hardware with the new settings */ |
794caeb2 | 7535 | err = hw->mac.ops.start_hw(hw); |
794caeb2 PWJ |
7536 | if (err == IXGBE_ERR_EEPROM_VERSION) { |
7537 | /* We are running on a pre-production device, log a warning */ | |
849c4542 ET |
7538 | e_dev_warn("This device is a pre-production adapter/LOM. " |
7539 | "Please be aware there may be issues associated " | |
7540 | "with your hardware. If you are experiencing " | |
7541 | "problems please contact your Intel or hardware " | |
7542 | "representative who provided you with this " | |
7543 | "hardware.\n"); | |
794caeb2 | 7544 | } |
9a799d71 AK |
7545 | strcpy(netdev->name, "eth%d"); |
7546 | err = register_netdev(netdev); | |
7547 | if (err) | |
7548 | goto err_register; | |
7549 | ||
ec74a471 ET |
7550 | /* power down the optics for 82599 SFP+ fiber */ |
7551 | if (hw->mac.ops.disable_tx_laser) | |
93d3ce8f ET |
7552 | hw->mac.ops.disable_tx_laser(hw); |
7553 | ||
54386467 JB |
7554 | /* carrier off reporting is important to ethtool even BEFORE open */ |
7555 | netif_carrier_off(netdev); | |
7556 | ||
5dd2d332 | 7557 | #ifdef CONFIG_IXGBE_DCA |
652f093f | 7558 | if (dca_add_requester(&pdev->dev) == 0) { |
bd0362dd | 7559 | adapter->flags |= IXGBE_FLAG_DCA_ENABLED; |
bd0362dd JC |
7560 | ixgbe_setup_dca(adapter); |
7561 | } | |
7562 | #endif | |
1cdd1ec8 | 7563 | if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { |
396e799c | 7564 | e_info(probe, "IOV is enabled with %d VFs\n", adapter->num_vfs); |
1cdd1ec8 GR |
7565 | for (i = 0; i < adapter->num_vfs; i++) |
7566 | ixgbe_vf_configuration(pdev, (i | 0x10000000)); | |
7567 | } | |
7568 | ||
2466dd9c JK |
7569 | /* firmware requires driver version to be 0xFFFFFFFF |
7570 | * since os does not support feature | |
7571 | */ | |
9612de92 | 7572 | if (hw->mac.ops.set_fw_drv_ver) |
2466dd9c JK |
7573 | hw->mac.ops.set_fw_drv_ver(hw, 0xFF, 0xFF, 0xFF, |
7574 | 0xFF); | |
9612de92 | 7575 | |
0365e6e4 PW |
7576 | /* add san mac addr to netdev */ |
7577 | ixgbe_add_sanmac_netdev(netdev); | |
9a799d71 | 7578 | |
ea81875a | 7579 | e_dev_info("%s\n", ixgbe_default_device_descr); |
9a799d71 | 7580 | cards_found++; |
3ca8bc6d | 7581 | |
1210982b | 7582 | #ifdef CONFIG_IXGBE_HWMON |
3ca8bc6d DS |
7583 | if (ixgbe_sysfs_init(adapter)) |
7584 | e_err(probe, "failed to allocate sysfs resources\n"); | |
1210982b | 7585 | #endif /* CONFIG_IXGBE_HWMON */ |
3ca8bc6d | 7586 | |
00949167 CS |
7587 | #ifdef CONFIG_DEBUG_FS |
7588 | ixgbe_dbg_adapter_init(adapter); | |
7589 | #endif /* CONFIG_DEBUG_FS */ | |
7590 | ||
9a799d71 AK |
7591 | return 0; |
7592 | ||
7593 | err_register: | |
5eba3699 | 7594 | ixgbe_release_hw_control(adapter); |
7a921c93 | 7595 | ixgbe_clear_interrupt_scheme(adapter); |
9a799d71 | 7596 | err_sw_init: |
99d74487 | 7597 | ixgbe_disable_sriov(adapter); |
7086400d | 7598 | adapter->flags2 &= ~IXGBE_FLAG2_SEARCH_FOR_SFP; |
9a799d71 AK |
7599 | iounmap(hw->hw_addr); |
7600 | err_ioremap: | |
7601 | free_netdev(netdev); | |
7602 | err_alloc_etherdev: | |
e8e9f696 JP |
7603 | pci_release_selected_regions(pdev, |
7604 | pci_select_bars(pdev, IORESOURCE_MEM)); | |
9a799d71 AK |
7605 | err_pci_reg: |
7606 | err_dma: | |
7607 | pci_disable_device(pdev); | |
7608 | return err; | |
7609 | } | |
7610 | ||
7611 | /** | |
7612 | * ixgbe_remove - Device Removal Routine | |
7613 | * @pdev: PCI device information struct | |
7614 | * | |
7615 | * ixgbe_remove is called by the PCI subsystem to alert the driver | |
7616 | * that it should release a PCI device. The could be caused by a | |
7617 | * Hot-Plug event, or because the driver is going to be removed from | |
7618 | * memory. | |
7619 | **/ | |
9f9a12f8 | 7620 | static void ixgbe_remove(struct pci_dev *pdev) |
9a799d71 | 7621 | { |
c60fbb00 AD |
7622 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
7623 | struct net_device *netdev = adapter->netdev; | |
9a799d71 | 7624 | |
00949167 CS |
7625 | #ifdef CONFIG_DEBUG_FS |
7626 | ixgbe_dbg_adapter_exit(adapter); | |
7627 | #endif /*CONFIG_DEBUG_FS */ | |
7628 | ||
9a799d71 | 7629 | set_bit(__IXGBE_DOWN, &adapter->state); |
7086400d | 7630 | cancel_work_sync(&adapter->service_task); |
9a799d71 | 7631 | |
3a6a4eda | 7632 | |
5dd2d332 | 7633 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd JC |
7634 | if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) { |
7635 | adapter->flags &= ~IXGBE_FLAG_DCA_ENABLED; | |
7636 | dca_remove_requester(&pdev->dev); | |
7637 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_CTRL, 1); | |
7638 | } | |
7639 | ||
7640 | #endif | |
1210982b | 7641 | #ifdef CONFIG_IXGBE_HWMON |
3ca8bc6d | 7642 | ixgbe_sysfs_exit(adapter); |
1210982b | 7643 | #endif /* CONFIG_IXGBE_HWMON */ |
3ca8bc6d | 7644 | |
0365e6e4 PW |
7645 | /* remove the added san mac */ |
7646 | ixgbe_del_sanmac_netdev(netdev); | |
7647 | ||
c4900be0 DS |
7648 | if (netdev->reg_state == NETREG_REGISTERED) |
7649 | unregister_netdev(netdev); | |
9a799d71 | 7650 | |
da36b647 GR |
7651 | #ifdef CONFIG_PCI_IOV |
7652 | /* | |
7653 | * Only disable SR-IOV on unload if the user specified the now | |
7654 | * deprecated max_vfs module parameter. | |
7655 | */ | |
7656 | if (max_vfs) | |
7657 | ixgbe_disable_sriov(adapter); | |
7658 | #endif | |
7a921c93 | 7659 | ixgbe_clear_interrupt_scheme(adapter); |
5eba3699 | 7660 | |
021230d4 | 7661 | ixgbe_release_hw_control(adapter); |
9a799d71 | 7662 | |
2b1588c3 AD |
7663 | #ifdef CONFIG_DCB |
7664 | kfree(adapter->ixgbe_ieee_pfc); | |
7665 | kfree(adapter->ixgbe_ieee_ets); | |
7666 | ||
7667 | #endif | |
9a799d71 | 7668 | iounmap(adapter->hw.hw_addr); |
9ce77666 | 7669 | pci_release_selected_regions(pdev, pci_select_bars(pdev, |
e8e9f696 | 7670 | IORESOURCE_MEM)); |
9a799d71 | 7671 | |
849c4542 | 7672 | e_dev_info("complete\n"); |
021230d4 | 7673 | |
9a799d71 AK |
7674 | free_netdev(netdev); |
7675 | ||
19d5afd4 | 7676 | pci_disable_pcie_error_reporting(pdev); |
6fabd715 | 7677 | |
9a799d71 AK |
7678 | pci_disable_device(pdev); |
7679 | } | |
7680 | ||
7681 | /** | |
7682 | * ixgbe_io_error_detected - called when PCI error is detected | |
7683 | * @pdev: Pointer to PCI device | |
7684 | * @state: The current pci connection state | |
7685 | * | |
7686 | * This function is called after a PCI bus error affecting | |
7687 | * this device has been detected. | |
7688 | */ | |
7689 | static pci_ers_result_t ixgbe_io_error_detected(struct pci_dev *pdev, | |
e8e9f696 | 7690 | pci_channel_state_t state) |
9a799d71 | 7691 | { |
c60fbb00 AD |
7692 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
7693 | struct net_device *netdev = adapter->netdev; | |
9a799d71 | 7694 | |
83c61fa9 GR |
7695 | #ifdef CONFIG_PCI_IOV |
7696 | struct pci_dev *bdev, *vfdev; | |
7697 | u32 dw0, dw1, dw2, dw3; | |
7698 | int vf, pos; | |
7699 | u16 req_id, pf_func; | |
7700 | ||
7701 | if (adapter->hw.mac.type == ixgbe_mac_82598EB || | |
7702 | adapter->num_vfs == 0) | |
7703 | goto skip_bad_vf_detection; | |
7704 | ||
7705 | bdev = pdev->bus->self; | |
62f87c0e | 7706 | while (bdev && (pci_pcie_type(bdev) != PCI_EXP_TYPE_ROOT_PORT)) |
83c61fa9 GR |
7707 | bdev = bdev->bus->self; |
7708 | ||
7709 | if (!bdev) | |
7710 | goto skip_bad_vf_detection; | |
7711 | ||
7712 | pos = pci_find_ext_capability(bdev, PCI_EXT_CAP_ID_ERR); | |
7713 | if (!pos) | |
7714 | goto skip_bad_vf_detection; | |
7715 | ||
7716 | pci_read_config_dword(bdev, pos + PCI_ERR_HEADER_LOG, &dw0); | |
7717 | pci_read_config_dword(bdev, pos + PCI_ERR_HEADER_LOG + 4, &dw1); | |
7718 | pci_read_config_dword(bdev, pos + PCI_ERR_HEADER_LOG + 8, &dw2); | |
7719 | pci_read_config_dword(bdev, pos + PCI_ERR_HEADER_LOG + 12, &dw3); | |
7720 | ||
7721 | req_id = dw1 >> 16; | |
7722 | /* On the 82599 if bit 7 of the requestor ID is set then it's a VF */ | |
7723 | if (!(req_id & 0x0080)) | |
7724 | goto skip_bad_vf_detection; | |
7725 | ||
7726 | pf_func = req_id & 0x01; | |
7727 | if ((pf_func & 1) == (pdev->devfn & 1)) { | |
7728 | unsigned int device_id; | |
7729 | ||
7730 | vf = (req_id & 0x7F) >> 1; | |
7731 | e_dev_err("VF %d has caused a PCIe error\n", vf); | |
7732 | e_dev_err("TLP: dw0: %8.8x\tdw1: %8.8x\tdw2: " | |
7733 | "%8.8x\tdw3: %8.8x\n", | |
7734 | dw0, dw1, dw2, dw3); | |
7735 | switch (adapter->hw.mac.type) { | |
7736 | case ixgbe_mac_82599EB: | |
7737 | device_id = IXGBE_82599_VF_DEVICE_ID; | |
7738 | break; | |
7739 | case ixgbe_mac_X540: | |
7740 | device_id = IXGBE_X540_VF_DEVICE_ID; | |
7741 | break; | |
7742 | default: | |
7743 | device_id = 0; | |
7744 | break; | |
7745 | } | |
7746 | ||
7747 | /* Find the pci device of the offending VF */ | |
36e90319 | 7748 | vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, device_id, NULL); |
83c61fa9 GR |
7749 | while (vfdev) { |
7750 | if (vfdev->devfn == (req_id & 0xFF)) | |
7751 | break; | |
36e90319 | 7752 | vfdev = pci_get_device(PCI_VENDOR_ID_INTEL, |
83c61fa9 GR |
7753 | device_id, vfdev); |
7754 | } | |
7755 | /* | |
7756 | * There's a slim chance the VF could have been hot plugged, | |
7757 | * so if it is no longer present we don't need to issue the | |
7758 | * VFLR. Just clean up the AER in that case. | |
7759 | */ | |
7760 | if (vfdev) { | |
7761 | e_dev_err("Issuing VFLR to VF %d\n", vf); | |
7762 | pci_write_config_dword(vfdev, 0xA8, 0x00008000); | |
b4fafbe9 GR |
7763 | /* Free device reference count */ |
7764 | pci_dev_put(vfdev); | |
83c61fa9 GR |
7765 | } |
7766 | ||
7767 | pci_cleanup_aer_uncorrect_error_status(pdev); | |
7768 | } | |
7769 | ||
7770 | /* | |
7771 | * Even though the error may have occurred on the other port | |
7772 | * we still need to increment the vf error reference count for | |
7773 | * both ports because the I/O resume function will be called | |
7774 | * for both of them. | |
7775 | */ | |
7776 | adapter->vferr_refcount++; | |
7777 | ||
7778 | return PCI_ERS_RESULT_RECOVERED; | |
7779 | ||
7780 | skip_bad_vf_detection: | |
7781 | #endif /* CONFIG_PCI_IOV */ | |
9a799d71 AK |
7782 | netif_device_detach(netdev); |
7783 | ||
3044b8d1 BL |
7784 | if (state == pci_channel_io_perm_failure) |
7785 | return PCI_ERS_RESULT_DISCONNECT; | |
7786 | ||
9a799d71 AK |
7787 | if (netif_running(netdev)) |
7788 | ixgbe_down(adapter); | |
7789 | pci_disable_device(pdev); | |
7790 | ||
b4617240 | 7791 | /* Request a slot reset. */ |
9a799d71 AK |
7792 | return PCI_ERS_RESULT_NEED_RESET; |
7793 | } | |
7794 | ||
7795 | /** | |
7796 | * ixgbe_io_slot_reset - called after the pci bus has been reset. | |
7797 | * @pdev: Pointer to PCI device | |
7798 | * | |
7799 | * Restart the card from scratch, as if from a cold-boot. | |
7800 | */ | |
7801 | static pci_ers_result_t ixgbe_io_slot_reset(struct pci_dev *pdev) | |
7802 | { | |
c60fbb00 | 7803 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
6fabd715 PWJ |
7804 | pci_ers_result_t result; |
7805 | int err; | |
9a799d71 | 7806 | |
9ce77666 | 7807 | if (pci_enable_device_mem(pdev)) { |
396e799c | 7808 | e_err(probe, "Cannot re-enable PCI device after reset.\n"); |
6fabd715 PWJ |
7809 | result = PCI_ERS_RESULT_DISCONNECT; |
7810 | } else { | |
7811 | pci_set_master(pdev); | |
7812 | pci_restore_state(pdev); | |
c0e1f68b | 7813 | pci_save_state(pdev); |
9a799d71 | 7814 | |
dd4d8ca6 | 7815 | pci_wake_from_d3(pdev, false); |
9a799d71 | 7816 | |
6fabd715 | 7817 | ixgbe_reset(adapter); |
88512539 | 7818 | IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); |
6fabd715 PWJ |
7819 | result = PCI_ERS_RESULT_RECOVERED; |
7820 | } | |
7821 | ||
7822 | err = pci_cleanup_aer_uncorrect_error_status(pdev); | |
7823 | if (err) { | |
849c4542 ET |
7824 | e_dev_err("pci_cleanup_aer_uncorrect_error_status " |
7825 | "failed 0x%0x\n", err); | |
6fabd715 PWJ |
7826 | /* non-fatal, continue */ |
7827 | } | |
9a799d71 | 7828 | |
6fabd715 | 7829 | return result; |
9a799d71 AK |
7830 | } |
7831 | ||
7832 | /** | |
7833 | * ixgbe_io_resume - called when traffic can start flowing again. | |
7834 | * @pdev: Pointer to PCI device | |
7835 | * | |
7836 | * This callback is called when the error recovery driver tells us that | |
7837 | * its OK to resume normal operation. | |
7838 | */ | |
7839 | static void ixgbe_io_resume(struct pci_dev *pdev) | |
7840 | { | |
c60fbb00 AD |
7841 | struct ixgbe_adapter *adapter = pci_get_drvdata(pdev); |
7842 | struct net_device *netdev = adapter->netdev; | |
9a799d71 | 7843 | |
83c61fa9 GR |
7844 | #ifdef CONFIG_PCI_IOV |
7845 | if (adapter->vferr_refcount) { | |
7846 | e_info(drv, "Resuming after VF err\n"); | |
7847 | adapter->vferr_refcount--; | |
7848 | return; | |
7849 | } | |
7850 | ||
7851 | #endif | |
c7ccde0f AD |
7852 | if (netif_running(netdev)) |
7853 | ixgbe_up(adapter); | |
9a799d71 AK |
7854 | |
7855 | netif_device_attach(netdev); | |
9a799d71 AK |
7856 | } |
7857 | ||
3646f0e5 | 7858 | static const struct pci_error_handlers ixgbe_err_handler = { |
9a799d71 AK |
7859 | .error_detected = ixgbe_io_error_detected, |
7860 | .slot_reset = ixgbe_io_slot_reset, | |
7861 | .resume = ixgbe_io_resume, | |
7862 | }; | |
7863 | ||
7864 | static struct pci_driver ixgbe_driver = { | |
7865 | .name = ixgbe_driver_name, | |
7866 | .id_table = ixgbe_pci_tbl, | |
7867 | .probe = ixgbe_probe, | |
9f9a12f8 | 7868 | .remove = ixgbe_remove, |
9a799d71 AK |
7869 | #ifdef CONFIG_PM |
7870 | .suspend = ixgbe_suspend, | |
7871 | .resume = ixgbe_resume, | |
7872 | #endif | |
7873 | .shutdown = ixgbe_shutdown, | |
da36b647 | 7874 | .sriov_configure = ixgbe_pci_sriov_configure, |
9a799d71 AK |
7875 | .err_handler = &ixgbe_err_handler |
7876 | }; | |
7877 | ||
7878 | /** | |
7879 | * ixgbe_init_module - Driver Registration Routine | |
7880 | * | |
7881 | * ixgbe_init_module is the first routine called when the driver is | |
7882 | * loaded. All it does is register with the PCI subsystem. | |
7883 | **/ | |
7884 | static int __init ixgbe_init_module(void) | |
7885 | { | |
7886 | int ret; | |
c7689578 | 7887 | pr_info("%s - version %s\n", ixgbe_driver_string, ixgbe_driver_version); |
849c4542 | 7888 | pr_info("%s\n", ixgbe_copyright); |
9a799d71 | 7889 | |
00949167 CS |
7890 | #ifdef CONFIG_DEBUG_FS |
7891 | ixgbe_dbg_init(); | |
7892 | #endif /* CONFIG_DEBUG_FS */ | |
7893 | ||
5dd2d332 | 7894 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd | 7895 | dca_register_notify(&dca_notifier); |
bd0362dd | 7896 | #endif |
5dd2d332 | 7897 | |
9a799d71 AK |
7898 | ret = pci_register_driver(&ixgbe_driver); |
7899 | return ret; | |
7900 | } | |
b4617240 | 7901 | |
9a799d71 AK |
7902 | module_init(ixgbe_init_module); |
7903 | ||
7904 | /** | |
7905 | * ixgbe_exit_module - Driver Exit Cleanup Routine | |
7906 | * | |
7907 | * ixgbe_exit_module is called just before the driver is removed | |
7908 | * from memory. | |
7909 | **/ | |
7910 | static void __exit ixgbe_exit_module(void) | |
7911 | { | |
5dd2d332 | 7912 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd JC |
7913 | dca_unregister_notify(&dca_notifier); |
7914 | #endif | |
9a799d71 | 7915 | pci_unregister_driver(&ixgbe_driver); |
00949167 CS |
7916 | |
7917 | #ifdef CONFIG_DEBUG_FS | |
7918 | ixgbe_dbg_exit(); | |
7919 | #endif /* CONFIG_DEBUG_FS */ | |
7920 | ||
1a51502b | 7921 | rcu_barrier(); /* Wait for completion of call_rcu()'s */ |
9a799d71 | 7922 | } |
bd0362dd | 7923 | |
5dd2d332 | 7924 | #ifdef CONFIG_IXGBE_DCA |
bd0362dd | 7925 | static int ixgbe_notify_dca(struct notifier_block *nb, unsigned long event, |
e8e9f696 | 7926 | void *p) |
bd0362dd JC |
7927 | { |
7928 | int ret_val; | |
7929 | ||
7930 | ret_val = driver_for_each_device(&ixgbe_driver.driver, NULL, &event, | |
e8e9f696 | 7931 | __ixgbe_notify_dca); |
bd0362dd JC |
7932 | |
7933 | return ret_val ? NOTIFY_BAD : NOTIFY_DONE; | |
7934 | } | |
b453368d | 7935 | |
5dd2d332 | 7936 | #endif /* CONFIG_IXGBE_DCA */ |
849c4542 | 7937 | |
9a799d71 AK |
7938 | module_exit(ixgbe_exit_module); |
7939 | ||
7940 | /* ixgbe_main.c */ |