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5eae00c5 GR |
1 | /******************************************************************************* |
2 | * | |
3 | * Intel Ethernet Controller XL710 Family Linux Virtual Function Driver | |
eaab59e9 | 4 | * Copyright(c) 2013 - 2016 Intel Corporation. |
5eae00c5 GR |
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 | * | |
b831607d JB |
15 | * You should have received a copy of the GNU General Public License along |
16 | * with this program. If not, see <http://www.gnu.org/licenses/>. | |
17 | * | |
5eae00c5 GR |
18 | * The full GNU General Public License is included in this distribution in |
19 | * the file called "COPYING". | |
20 | * | |
21 | * Contact Information: | |
22 | * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> | |
23 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
24 | * | |
25 | ******************************************************************************/ | |
26 | ||
27 | #include "i40evf.h" | |
28 | #include "i40e_prototype.h" | |
29 | static int i40evf_setup_all_tx_resources(struct i40evf_adapter *adapter); | |
30 | static int i40evf_setup_all_rx_resources(struct i40evf_adapter *adapter); | |
31 | static int i40evf_close(struct net_device *netdev); | |
32 | ||
33 | char i40evf_driver_name[] = "i40evf"; | |
34 | static const char i40evf_driver_string[] = | |
eaab59e9 | 35 | "Intel(R) 40-10 Gigabit Virtual Function Network Driver"; |
5eae00c5 | 36 | |
69ebe955 MW |
37 | #define DRV_KERN "-k" |
38 | ||
39 | #define DRV_VERSION_MAJOR 1 | |
40 | #define DRV_VERSION_MINOR 4 | |
b8f1343a | 41 | #define DRV_VERSION_BUILD 15 |
69ebe955 MW |
42 | #define DRV_VERSION __stringify(DRV_VERSION_MAJOR) "." \ |
43 | __stringify(DRV_VERSION_MINOR) "." \ | |
44 | __stringify(DRV_VERSION_BUILD) \ | |
45 | DRV_KERN | |
5eae00c5 GR |
46 | const char i40evf_driver_version[] = DRV_VERSION; |
47 | static const char i40evf_copyright[] = | |
bf41846e | 48 | "Copyright (c) 2013 - 2015 Intel Corporation."; |
5eae00c5 GR |
49 | |
50 | /* i40evf_pci_tbl - PCI Device ID Table | |
51 | * | |
52 | * Wildcard entries (PCI_ANY_ID) should come last | |
53 | * Last entry must be all 0s | |
54 | * | |
55 | * { Vendor ID, Device ID, SubVendor ID, SubDevice ID, | |
56 | * Class, Class Mask, private data (not used) } | |
57 | */ | |
9baa3c34 | 58 | static const struct pci_device_id i40evf_pci_tbl[] = { |
ab60085e | 59 | {PCI_VDEVICE(INTEL, I40E_DEV_ID_VF), 0}, |
87e6c1d7 | 60 | {PCI_VDEVICE(INTEL, I40E_DEV_ID_X722_VF), 0}, |
5eae00c5 GR |
61 | /* required last entry */ |
62 | {0, } | |
63 | }; | |
64 | ||
65 | MODULE_DEVICE_TABLE(pci, i40evf_pci_tbl); | |
66 | ||
67 | MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>"); | |
68 | MODULE_DESCRIPTION("Intel(R) XL710 X710 Virtual Function Network Driver"); | |
69 | MODULE_LICENSE("GPL"); | |
70 | MODULE_VERSION(DRV_VERSION); | |
71 | ||
2803b16c JB |
72 | static struct workqueue_struct *i40evf_wq; |
73 | ||
5eae00c5 GR |
74 | /** |
75 | * i40evf_allocate_dma_mem_d - OS specific memory alloc for shared code | |
76 | * @hw: pointer to the HW structure | |
77 | * @mem: ptr to mem struct to fill out | |
78 | * @size: size of memory requested | |
79 | * @alignment: what to align the allocation to | |
80 | **/ | |
81 | i40e_status i40evf_allocate_dma_mem_d(struct i40e_hw *hw, | |
82 | struct i40e_dma_mem *mem, | |
83 | u64 size, u32 alignment) | |
84 | { | |
85 | struct i40evf_adapter *adapter = (struct i40evf_adapter *)hw->back; | |
86 | ||
87 | if (!mem) | |
88 | return I40E_ERR_PARAM; | |
89 | ||
90 | mem->size = ALIGN(size, alignment); | |
91 | mem->va = dma_alloc_coherent(&adapter->pdev->dev, mem->size, | |
92 | (dma_addr_t *)&mem->pa, GFP_KERNEL); | |
93 | if (mem->va) | |
94 | return 0; | |
95 | else | |
96 | return I40E_ERR_NO_MEMORY; | |
97 | } | |
98 | ||
99 | /** | |
100 | * i40evf_free_dma_mem_d - OS specific memory free for shared code | |
101 | * @hw: pointer to the HW structure | |
102 | * @mem: ptr to mem struct to free | |
103 | **/ | |
104 | i40e_status i40evf_free_dma_mem_d(struct i40e_hw *hw, struct i40e_dma_mem *mem) | |
105 | { | |
106 | struct i40evf_adapter *adapter = (struct i40evf_adapter *)hw->back; | |
107 | ||
108 | if (!mem || !mem->va) | |
109 | return I40E_ERR_PARAM; | |
110 | dma_free_coherent(&adapter->pdev->dev, mem->size, | |
111 | mem->va, (dma_addr_t)mem->pa); | |
112 | return 0; | |
113 | } | |
114 | ||
115 | /** | |
116 | * i40evf_allocate_virt_mem_d - OS specific memory alloc for shared code | |
117 | * @hw: pointer to the HW structure | |
118 | * @mem: ptr to mem struct to fill out | |
119 | * @size: size of memory requested | |
120 | **/ | |
121 | i40e_status i40evf_allocate_virt_mem_d(struct i40e_hw *hw, | |
122 | struct i40e_virt_mem *mem, u32 size) | |
123 | { | |
124 | if (!mem) | |
125 | return I40E_ERR_PARAM; | |
126 | ||
127 | mem->size = size; | |
128 | mem->va = kzalloc(size, GFP_KERNEL); | |
129 | ||
130 | if (mem->va) | |
131 | return 0; | |
132 | else | |
133 | return I40E_ERR_NO_MEMORY; | |
134 | } | |
135 | ||
136 | /** | |
137 | * i40evf_free_virt_mem_d - OS specific memory free for shared code | |
138 | * @hw: pointer to the HW structure | |
139 | * @mem: ptr to mem struct to free | |
140 | **/ | |
141 | i40e_status i40evf_free_virt_mem_d(struct i40e_hw *hw, | |
142 | struct i40e_virt_mem *mem) | |
143 | { | |
144 | if (!mem) | |
145 | return I40E_ERR_PARAM; | |
146 | ||
147 | /* it's ok to kfree a NULL pointer */ | |
148 | kfree(mem->va); | |
149 | ||
150 | return 0; | |
151 | } | |
152 | ||
153 | /** | |
154 | * i40evf_debug_d - OS dependent version of debug printing | |
155 | * @hw: pointer to the HW structure | |
156 | * @mask: debug level mask | |
157 | * @fmt_str: printf-type format description | |
158 | **/ | |
159 | void i40evf_debug_d(void *hw, u32 mask, char *fmt_str, ...) | |
160 | { | |
161 | char buf[512]; | |
162 | va_list argptr; | |
163 | ||
164 | if (!(mask & ((struct i40e_hw *)hw)->debug_mask)) | |
165 | return; | |
166 | ||
167 | va_start(argptr, fmt_str); | |
168 | vsnprintf(buf, sizeof(buf), fmt_str, argptr); | |
169 | va_end(argptr); | |
170 | ||
171 | /* the debug string is already formatted with a newline */ | |
172 | pr_info("%s", buf); | |
173 | } | |
174 | ||
00e5ec4b MW |
175 | /** |
176 | * i40evf_schedule_reset - Set the flags and schedule a reset event | |
177 | * @adapter: board private structure | |
178 | **/ | |
179 | void i40evf_schedule_reset(struct i40evf_adapter *adapter) | |
180 | { | |
181 | if (!(adapter->flags & | |
182 | (I40EVF_FLAG_RESET_PENDING | I40EVF_FLAG_RESET_NEEDED))) { | |
183 | adapter->flags |= I40EVF_FLAG_RESET_NEEDED; | |
184 | schedule_work(&adapter->reset_task); | |
185 | } | |
186 | } | |
187 | ||
5eae00c5 GR |
188 | /** |
189 | * i40evf_tx_timeout - Respond to a Tx Hang | |
190 | * @netdev: network interface device structure | |
191 | **/ | |
192 | static void i40evf_tx_timeout(struct net_device *netdev) | |
193 | { | |
194 | struct i40evf_adapter *adapter = netdev_priv(netdev); | |
195 | ||
196 | adapter->tx_timeout_count++; | |
00e5ec4b | 197 | i40evf_schedule_reset(adapter); |
5eae00c5 GR |
198 | } |
199 | ||
200 | /** | |
201 | * i40evf_misc_irq_disable - Mask off interrupt generation on the NIC | |
202 | * @adapter: board private structure | |
203 | **/ | |
204 | static void i40evf_misc_irq_disable(struct i40evf_adapter *adapter) | |
205 | { | |
206 | struct i40e_hw *hw = &adapter->hw; | |
75a64435 | 207 | |
5eae00c5 GR |
208 | wr32(hw, I40E_VFINT_DYN_CTL01, 0); |
209 | ||
210 | /* read flush */ | |
211 | rd32(hw, I40E_VFGEN_RSTAT); | |
212 | ||
213 | synchronize_irq(adapter->msix_entries[0].vector); | |
214 | } | |
215 | ||
216 | /** | |
217 | * i40evf_misc_irq_enable - Enable default interrupt generation settings | |
218 | * @adapter: board private structure | |
219 | **/ | |
220 | static void i40evf_misc_irq_enable(struct i40evf_adapter *adapter) | |
221 | { | |
222 | struct i40e_hw *hw = &adapter->hw; | |
75a64435 | 223 | |
5eae00c5 GR |
224 | wr32(hw, I40E_VFINT_DYN_CTL01, I40E_VFINT_DYN_CTL01_INTENA_MASK | |
225 | I40E_VFINT_DYN_CTL01_ITR_INDX_MASK); | |
b1f3366b | 226 | wr32(hw, I40E_VFINT_ICR0_ENA1, I40E_VFINT_ICR0_ENA1_ADMINQ_MASK); |
5eae00c5 GR |
227 | |
228 | /* read flush */ | |
229 | rd32(hw, I40E_VFGEN_RSTAT); | |
230 | } | |
231 | ||
232 | /** | |
233 | * i40evf_irq_disable - Mask off interrupt generation on the NIC | |
234 | * @adapter: board private structure | |
235 | **/ | |
236 | static void i40evf_irq_disable(struct i40evf_adapter *adapter) | |
237 | { | |
238 | int i; | |
239 | struct i40e_hw *hw = &adapter->hw; | |
240 | ||
dbb01c8a MW |
241 | if (!adapter->msix_entries) |
242 | return; | |
243 | ||
5eae00c5 GR |
244 | for (i = 1; i < adapter->num_msix_vectors; i++) { |
245 | wr32(hw, I40E_VFINT_DYN_CTLN1(i - 1), 0); | |
246 | synchronize_irq(adapter->msix_entries[i].vector); | |
247 | } | |
248 | /* read flush */ | |
249 | rd32(hw, I40E_VFGEN_RSTAT); | |
5eae00c5 GR |
250 | } |
251 | ||
252 | /** | |
253 | * i40evf_irq_enable_queues - Enable interrupt for specified queues | |
254 | * @adapter: board private structure | |
255 | * @mask: bitmap of queues to enable | |
256 | **/ | |
257 | void i40evf_irq_enable_queues(struct i40evf_adapter *adapter, u32 mask) | |
258 | { | |
259 | struct i40e_hw *hw = &adapter->hw; | |
260 | int i; | |
261 | ||
262 | for (i = 1; i < adapter->num_msix_vectors; i++) { | |
41a1d04b | 263 | if (mask & BIT(i - 1)) { |
5eae00c5 GR |
264 | wr32(hw, I40E_VFINT_DYN_CTLN1(i - 1), |
265 | I40E_VFINT_DYN_CTLN1_INTENA_MASK | | |
97bf75f1 | 266 | I40E_VFINT_DYN_CTLN1_ITR_INDX_MASK | |
b1f3366b | 267 | I40E_VFINT_DYN_CTLN1_CLEARPBA_MASK); |
5eae00c5 GR |
268 | } |
269 | } | |
270 | } | |
271 | ||
272 | /** | |
273 | * i40evf_fire_sw_int - Generate SW interrupt for specified vectors | |
274 | * @adapter: board private structure | |
275 | * @mask: bitmap of vectors to trigger | |
276 | **/ | |
75a64435 | 277 | static void i40evf_fire_sw_int(struct i40evf_adapter *adapter, u32 mask) |
5eae00c5 GR |
278 | { |
279 | struct i40e_hw *hw = &adapter->hw; | |
280 | int i; | |
d82acb35 | 281 | u32 dyn_ctl; |
5eae00c5 | 282 | |
164ec1bf MW |
283 | if (mask & 1) { |
284 | dyn_ctl = rd32(hw, I40E_VFINT_DYN_CTL01); | |
b1f3366b | 285 | dyn_ctl |= I40E_VFINT_DYN_CTLN1_SWINT_TRIG_MASK | |
97bf75f1 | 286 | I40E_VFINT_DYN_CTLN1_ITR_INDX_MASK | |
b1f3366b | 287 | I40E_VFINT_DYN_CTLN1_CLEARPBA_MASK; |
164ec1bf MW |
288 | wr32(hw, I40E_VFINT_DYN_CTL01, dyn_ctl); |
289 | } | |
5eae00c5 | 290 | for (i = 1; i < adapter->num_msix_vectors; i++) { |
41a1d04b | 291 | if (mask & BIT(i)) { |
5eae00c5 | 292 | dyn_ctl = rd32(hw, I40E_VFINT_DYN_CTLN1(i - 1)); |
b1f3366b | 293 | dyn_ctl |= I40E_VFINT_DYN_CTLN1_SWINT_TRIG_MASK | |
97bf75f1 | 294 | I40E_VFINT_DYN_CTLN1_ITR_INDX_MASK | |
b1f3366b | 295 | I40E_VFINT_DYN_CTLN1_CLEARPBA_MASK; |
5eae00c5 GR |
296 | wr32(hw, I40E_VFINT_DYN_CTLN1(i - 1), dyn_ctl); |
297 | } | |
298 | } | |
299 | } | |
300 | ||
301 | /** | |
302 | * i40evf_irq_enable - Enable default interrupt generation settings | |
303 | * @adapter: board private structure | |
69c1d70a | 304 | * @flush: boolean value whether to run rd32() |
5eae00c5 GR |
305 | **/ |
306 | void i40evf_irq_enable(struct i40evf_adapter *adapter, bool flush) | |
307 | { | |
308 | struct i40e_hw *hw = &adapter->hw; | |
309 | ||
164ec1bf | 310 | i40evf_misc_irq_enable(adapter); |
5eae00c5 GR |
311 | i40evf_irq_enable_queues(adapter, ~0); |
312 | ||
313 | if (flush) | |
314 | rd32(hw, I40E_VFGEN_RSTAT); | |
315 | } | |
316 | ||
317 | /** | |
318 | * i40evf_msix_aq - Interrupt handler for vector 0 | |
319 | * @irq: interrupt number | |
320 | * @data: pointer to netdev | |
321 | **/ | |
322 | static irqreturn_t i40evf_msix_aq(int irq, void *data) | |
323 | { | |
324 | struct net_device *netdev = data; | |
325 | struct i40evf_adapter *adapter = netdev_priv(netdev); | |
326 | struct i40e_hw *hw = &adapter->hw; | |
327 | u32 val; | |
5eae00c5 | 328 | |
cfbe4dba JB |
329 | /* handle non-queue interrupts, these reads clear the registers */ |
330 | val = rd32(hw, I40E_VFINT_ICR01); | |
331 | val = rd32(hw, I40E_VFINT_ICR0_ENA1); | |
5eae00c5 | 332 | |
ed17f7e5 JS |
333 | val = rd32(hw, I40E_VFINT_DYN_CTL01) | |
334 | I40E_VFINT_DYN_CTL01_CLEARPBA_MASK; | |
5eae00c5 GR |
335 | wr32(hw, I40E_VFINT_DYN_CTL01, val); |
336 | ||
5eae00c5 GR |
337 | /* schedule work on the private workqueue */ |
338 | schedule_work(&adapter->adminq_task); | |
339 | ||
340 | return IRQ_HANDLED; | |
341 | } | |
342 | ||
343 | /** | |
344 | * i40evf_msix_clean_rings - MSIX mode Interrupt Handler | |
345 | * @irq: interrupt number | |
346 | * @data: pointer to a q_vector | |
347 | **/ | |
348 | static irqreturn_t i40evf_msix_clean_rings(int irq, void *data) | |
349 | { | |
350 | struct i40e_q_vector *q_vector = data; | |
351 | ||
352 | if (!q_vector->tx.ring && !q_vector->rx.ring) | |
353 | return IRQ_HANDLED; | |
354 | ||
5d3465a1 | 355 | napi_schedule_irqoff(&q_vector->napi); |
5eae00c5 GR |
356 | |
357 | return IRQ_HANDLED; | |
358 | } | |
359 | ||
360 | /** | |
361 | * i40evf_map_vector_to_rxq - associate irqs with rx queues | |
362 | * @adapter: board private structure | |
363 | * @v_idx: interrupt number | |
364 | * @r_idx: queue number | |
365 | **/ | |
366 | static void | |
367 | i40evf_map_vector_to_rxq(struct i40evf_adapter *adapter, int v_idx, int r_idx) | |
368 | { | |
7d96ba1a | 369 | struct i40e_q_vector *q_vector = &adapter->q_vectors[v_idx]; |
0dd438d8 | 370 | struct i40e_ring *rx_ring = &adapter->rx_rings[r_idx]; |
5eae00c5 GR |
371 | |
372 | rx_ring->q_vector = q_vector; | |
373 | rx_ring->next = q_vector->rx.ring; | |
374 | rx_ring->vsi = &adapter->vsi; | |
375 | q_vector->rx.ring = rx_ring; | |
376 | q_vector->rx.count++; | |
377 | q_vector->rx.latency_range = I40E_LOW_LATENCY; | |
ee2319cf | 378 | q_vector->itr_countdown = ITR_COUNTDOWN_START; |
5eae00c5 GR |
379 | } |
380 | ||
381 | /** | |
382 | * i40evf_map_vector_to_txq - associate irqs with tx queues | |
383 | * @adapter: board private structure | |
384 | * @v_idx: interrupt number | |
385 | * @t_idx: queue number | |
386 | **/ | |
387 | static void | |
388 | i40evf_map_vector_to_txq(struct i40evf_adapter *adapter, int v_idx, int t_idx) | |
389 | { | |
7d96ba1a | 390 | struct i40e_q_vector *q_vector = &adapter->q_vectors[v_idx]; |
0dd438d8 | 391 | struct i40e_ring *tx_ring = &adapter->tx_rings[t_idx]; |
5eae00c5 GR |
392 | |
393 | tx_ring->q_vector = q_vector; | |
394 | tx_ring->next = q_vector->tx.ring; | |
395 | tx_ring->vsi = &adapter->vsi; | |
396 | q_vector->tx.ring = tx_ring; | |
397 | q_vector->tx.count++; | |
398 | q_vector->tx.latency_range = I40E_LOW_LATENCY; | |
ee2319cf | 399 | q_vector->itr_countdown = ITR_COUNTDOWN_START; |
5eae00c5 | 400 | q_vector->num_ringpairs++; |
41a1d04b | 401 | q_vector->ring_mask |= BIT(t_idx); |
5eae00c5 GR |
402 | } |
403 | ||
404 | /** | |
405 | * i40evf_map_rings_to_vectors - Maps descriptor rings to vectors | |
406 | * @adapter: board private structure to initialize | |
407 | * | |
408 | * This function maps descriptor rings to the queue-specific vectors | |
409 | * we were allotted through the MSI-X enabling code. Ideally, we'd have | |
410 | * one vector per ring/queue, but on a constrained vector budget, we | |
411 | * group the rings as "efficiently" as possible. You would add new | |
412 | * mapping configurations in here. | |
413 | **/ | |
414 | static int i40evf_map_rings_to_vectors(struct i40evf_adapter *adapter) | |
415 | { | |
416 | int q_vectors; | |
417 | int v_start = 0; | |
418 | int rxr_idx = 0, txr_idx = 0; | |
cc052927 MW |
419 | int rxr_remaining = adapter->num_active_queues; |
420 | int txr_remaining = adapter->num_active_queues; | |
5eae00c5 GR |
421 | int i, j; |
422 | int rqpv, tqpv; | |
423 | int err = 0; | |
424 | ||
425 | q_vectors = adapter->num_msix_vectors - NONQ_VECS; | |
426 | ||
427 | /* The ideal configuration... | |
428 | * We have enough vectors to map one per queue. | |
429 | */ | |
973371da | 430 | if (q_vectors >= (rxr_remaining * 2)) { |
5eae00c5 GR |
431 | for (; rxr_idx < rxr_remaining; v_start++, rxr_idx++) |
432 | i40evf_map_vector_to_rxq(adapter, v_start, rxr_idx); | |
433 | ||
434 | for (; txr_idx < txr_remaining; v_start++, txr_idx++) | |
435 | i40evf_map_vector_to_txq(adapter, v_start, txr_idx); | |
436 | goto out; | |
437 | } | |
438 | ||
439 | /* If we don't have enough vectors for a 1-to-1 | |
440 | * mapping, we'll have to group them so there are | |
441 | * multiple queues per vector. | |
442 | * Re-adjusting *qpv takes care of the remainder. | |
443 | */ | |
444 | for (i = v_start; i < q_vectors; i++) { | |
445 | rqpv = DIV_ROUND_UP(rxr_remaining, q_vectors - i); | |
446 | for (j = 0; j < rqpv; j++) { | |
447 | i40evf_map_vector_to_rxq(adapter, i, rxr_idx); | |
448 | rxr_idx++; | |
449 | rxr_remaining--; | |
450 | } | |
451 | } | |
452 | for (i = v_start; i < q_vectors; i++) { | |
453 | tqpv = DIV_ROUND_UP(txr_remaining, q_vectors - i); | |
454 | for (j = 0; j < tqpv; j++) { | |
455 | i40evf_map_vector_to_txq(adapter, i, txr_idx); | |
456 | txr_idx++; | |
457 | txr_remaining--; | |
458 | } | |
459 | } | |
460 | ||
461 | out: | |
462 | adapter->aq_required |= I40EVF_FLAG_AQ_MAP_VECTORS; | |
463 | ||
464 | return err; | |
465 | } | |
466 | ||
7709b4c1 AD |
467 | #ifdef CONFIG_NET_POLL_CONTROLLER |
468 | /** | |
469 | * i40evf_netpoll - A Polling 'interrupt' handler | |
470 | * @netdev: network interface device structure | |
471 | * | |
472 | * This is used by netconsole to send skbs without having to re-enable | |
473 | * interrupts. It's not called while the normal interrupt routine is executing. | |
474 | **/ | |
475 | static void i40evf_netpoll(struct net_device *netdev) | |
476 | { | |
477 | struct i40evf_adapter *adapter = netdev_priv(netdev); | |
478 | int q_vectors = adapter->num_msix_vectors - NONQ_VECS; | |
479 | int i; | |
480 | ||
481 | /* if interface is down do nothing */ | |
482 | if (test_bit(__I40E_DOWN, &adapter->vsi.state)) | |
483 | return; | |
484 | ||
485 | for (i = 0; i < q_vectors; i++) | |
7d96ba1a | 486 | i40evf_msix_clean_rings(0, &adapter->q_vectors[i]); |
7709b4c1 AD |
487 | } |
488 | ||
489 | #endif | |
5eae00c5 GR |
490 | /** |
491 | * i40evf_request_traffic_irqs - Initialize MSI-X interrupts | |
492 | * @adapter: board private structure | |
493 | * | |
494 | * Allocates MSI-X vectors for tx and rx handling, and requests | |
495 | * interrupts from the kernel. | |
496 | **/ | |
497 | static int | |
498 | i40evf_request_traffic_irqs(struct i40evf_adapter *adapter, char *basename) | |
499 | { | |
500 | int vector, err, q_vectors; | |
501 | int rx_int_idx = 0, tx_int_idx = 0; | |
502 | ||
503 | i40evf_irq_disable(adapter); | |
504 | /* Decrement for Other and TCP Timer vectors */ | |
505 | q_vectors = adapter->num_msix_vectors - NONQ_VECS; | |
506 | ||
507 | for (vector = 0; vector < q_vectors; vector++) { | |
7d96ba1a | 508 | struct i40e_q_vector *q_vector = &adapter->q_vectors[vector]; |
5eae00c5 GR |
509 | |
510 | if (q_vector->tx.ring && q_vector->rx.ring) { | |
511 | snprintf(q_vector->name, sizeof(q_vector->name) - 1, | |
512 | "i40evf-%s-%s-%d", basename, | |
513 | "TxRx", rx_int_idx++); | |
514 | tx_int_idx++; | |
515 | } else if (q_vector->rx.ring) { | |
516 | snprintf(q_vector->name, sizeof(q_vector->name) - 1, | |
517 | "i40evf-%s-%s-%d", basename, | |
518 | "rx", rx_int_idx++); | |
519 | } else if (q_vector->tx.ring) { | |
520 | snprintf(q_vector->name, sizeof(q_vector->name) - 1, | |
521 | "i40evf-%s-%s-%d", basename, | |
522 | "tx", tx_int_idx++); | |
523 | } else { | |
524 | /* skip this unused q_vector */ | |
525 | continue; | |
526 | } | |
527 | err = request_irq( | |
528 | adapter->msix_entries[vector + NONQ_VECS].vector, | |
529 | i40evf_msix_clean_rings, | |
530 | 0, | |
531 | q_vector->name, | |
532 | q_vector); | |
533 | if (err) { | |
534 | dev_info(&adapter->pdev->dev, | |
fb43201f | 535 | "Request_irq failed, error: %d\n", err); |
5eae00c5 GR |
536 | goto free_queue_irqs; |
537 | } | |
538 | /* assign the mask for this irq */ | |
539 | irq_set_affinity_hint( | |
540 | adapter->msix_entries[vector + NONQ_VECS].vector, | |
541 | q_vector->affinity_mask); | |
542 | } | |
543 | ||
544 | return 0; | |
545 | ||
546 | free_queue_irqs: | |
547 | while (vector) { | |
548 | vector--; | |
549 | irq_set_affinity_hint( | |
550 | adapter->msix_entries[vector + NONQ_VECS].vector, | |
551 | NULL); | |
552 | free_irq(adapter->msix_entries[vector + NONQ_VECS].vector, | |
7d96ba1a | 553 | &adapter->q_vectors[vector]); |
5eae00c5 GR |
554 | } |
555 | return err; | |
556 | } | |
557 | ||
558 | /** | |
559 | * i40evf_request_misc_irq - Initialize MSI-X interrupts | |
560 | * @adapter: board private structure | |
561 | * | |
562 | * Allocates MSI-X vector 0 and requests interrupts from the kernel. This | |
563 | * vector is only for the admin queue, and stays active even when the netdev | |
564 | * is closed. | |
565 | **/ | |
566 | static int i40evf_request_misc_irq(struct i40evf_adapter *adapter) | |
567 | { | |
568 | struct net_device *netdev = adapter->netdev; | |
569 | int err; | |
570 | ||
b39c1e2c | 571 | snprintf(adapter->misc_vector_name, |
9a21a007 CW |
572 | sizeof(adapter->misc_vector_name) - 1, "i40evf-%s:mbx", |
573 | dev_name(&adapter->pdev->dev)); | |
5eae00c5 | 574 | err = request_irq(adapter->msix_entries[0].vector, |
e1dfee8e MW |
575 | &i40evf_msix_aq, 0, |
576 | adapter->misc_vector_name, netdev); | |
5eae00c5 GR |
577 | if (err) { |
578 | dev_err(&adapter->pdev->dev, | |
77fa28be CS |
579 | "request_irq for %s failed: %d\n", |
580 | adapter->misc_vector_name, err); | |
5eae00c5 GR |
581 | free_irq(adapter->msix_entries[0].vector, netdev); |
582 | } | |
583 | return err; | |
584 | } | |
585 | ||
586 | /** | |
587 | * i40evf_free_traffic_irqs - Free MSI-X interrupts | |
588 | * @adapter: board private structure | |
589 | * | |
590 | * Frees all MSI-X vectors other than 0. | |
591 | **/ | |
592 | static void i40evf_free_traffic_irqs(struct i40evf_adapter *adapter) | |
593 | { | |
594 | int i; | |
595 | int q_vectors; | |
75a64435 | 596 | |
5eae00c5 GR |
597 | q_vectors = adapter->num_msix_vectors - NONQ_VECS; |
598 | ||
599 | for (i = 0; i < q_vectors; i++) { | |
600 | irq_set_affinity_hint(adapter->msix_entries[i+1].vector, | |
601 | NULL); | |
602 | free_irq(adapter->msix_entries[i+1].vector, | |
7d96ba1a | 603 | &adapter->q_vectors[i]); |
5eae00c5 GR |
604 | } |
605 | } | |
606 | ||
607 | /** | |
608 | * i40evf_free_misc_irq - Free MSI-X miscellaneous vector | |
609 | * @adapter: board private structure | |
610 | * | |
611 | * Frees MSI-X vector 0. | |
612 | **/ | |
613 | static void i40evf_free_misc_irq(struct i40evf_adapter *adapter) | |
614 | { | |
615 | struct net_device *netdev = adapter->netdev; | |
616 | ||
617 | free_irq(adapter->msix_entries[0].vector, netdev); | |
618 | } | |
619 | ||
620 | /** | |
621 | * i40evf_configure_tx - Configure Transmit Unit after Reset | |
622 | * @adapter: board private structure | |
623 | * | |
624 | * Configure the Tx unit of the MAC after a reset. | |
625 | **/ | |
626 | static void i40evf_configure_tx(struct i40evf_adapter *adapter) | |
627 | { | |
628 | struct i40e_hw *hw = &adapter->hw; | |
629 | int i; | |
75a64435 | 630 | |
cc052927 | 631 | for (i = 0; i < adapter->num_active_queues; i++) |
0dd438d8 | 632 | adapter->tx_rings[i].tail = hw->hw_addr + I40E_QTX_TAIL1(i); |
5eae00c5 GR |
633 | } |
634 | ||
635 | /** | |
636 | * i40evf_configure_rx - Configure Receive Unit after Reset | |
637 | * @adapter: board private structure | |
638 | * | |
639 | * Configure the Rx unit of the MAC after a reset. | |
640 | **/ | |
641 | static void i40evf_configure_rx(struct i40evf_adapter *adapter) | |
642 | { | |
643 | struct i40e_hw *hw = &adapter->hw; | |
644 | struct net_device *netdev = adapter->netdev; | |
645 | int max_frame = netdev->mtu + ETH_HLEN + ETH_FCS_LEN; | |
646 | int i; | |
647 | int rx_buf_len; | |
648 | ||
649 | ||
5eae00c5 | 650 | /* Set the RX buffer length according to the mode */ |
00e5ec4b MW |
651 | if (adapter->flags & I40EVF_FLAG_RX_PS_ENABLED || |
652 | netdev->mtu <= ETH_DATA_LEN) | |
653 | rx_buf_len = I40EVF_RXBUFFER_2048; | |
654 | else | |
655 | rx_buf_len = ALIGN(max_frame, 1024); | |
5eae00c5 | 656 | |
cc052927 | 657 | for (i = 0; i < adapter->num_active_queues; i++) { |
0dd438d8 MW |
658 | adapter->rx_rings[i].tail = hw->hw_addr + I40E_QRX_TAIL1(i); |
659 | adapter->rx_rings[i].rx_buf_len = rx_buf_len; | |
00e5ec4b MW |
660 | if (adapter->flags & I40EVF_FLAG_RX_PS_ENABLED) { |
661 | set_ring_ps_enabled(&adapter->rx_rings[i]); | |
662 | adapter->rx_rings[i].rx_hdr_len = I40E_RX_HDR_SIZE; | |
663 | } else { | |
664 | clear_ring_ps_enabled(&adapter->rx_rings[i]); | |
665 | } | |
5eae00c5 GR |
666 | } |
667 | } | |
668 | ||
669 | /** | |
670 | * i40evf_find_vlan - Search filter list for specific vlan filter | |
671 | * @adapter: board private structure | |
672 | * @vlan: vlan tag | |
673 | * | |
674 | * Returns ptr to the filter object or NULL | |
675 | **/ | |
676 | static struct | |
677 | i40evf_vlan_filter *i40evf_find_vlan(struct i40evf_adapter *adapter, u16 vlan) | |
678 | { | |
679 | struct i40evf_vlan_filter *f; | |
680 | ||
681 | list_for_each_entry(f, &adapter->vlan_filter_list, list) { | |
682 | if (vlan == f->vlan) | |
683 | return f; | |
684 | } | |
685 | return NULL; | |
686 | } | |
687 | ||
688 | /** | |
689 | * i40evf_add_vlan - Add a vlan filter to the list | |
690 | * @adapter: board private structure | |
691 | * @vlan: VLAN tag | |
692 | * | |
693 | * Returns ptr to the filter object or NULL when no memory available. | |
694 | **/ | |
695 | static struct | |
696 | i40evf_vlan_filter *i40evf_add_vlan(struct i40evf_adapter *adapter, u16 vlan) | |
697 | { | |
13acb546 MW |
698 | struct i40evf_vlan_filter *f = NULL; |
699 | int count = 50; | |
700 | ||
701 | while (test_and_set_bit(__I40EVF_IN_CRITICAL_TASK, | |
702 | &adapter->crit_section)) { | |
703 | udelay(1); | |
704 | if (--count == 0) | |
705 | goto out; | |
706 | } | |
5eae00c5 GR |
707 | |
708 | f = i40evf_find_vlan(adapter, vlan); | |
348d4994 | 709 | if (!f) { |
5eae00c5 | 710 | f = kzalloc(sizeof(*f), GFP_ATOMIC); |
348d4994 | 711 | if (!f) |
13acb546 | 712 | goto clearout; |
249c8b8d | 713 | |
5eae00c5 GR |
714 | f->vlan = vlan; |
715 | ||
716 | INIT_LIST_HEAD(&f->list); | |
717 | list_add(&f->list, &adapter->vlan_filter_list); | |
718 | f->add = true; | |
719 | adapter->aq_required |= I40EVF_FLAG_AQ_ADD_VLAN_FILTER; | |
720 | } | |
721 | ||
13acb546 MW |
722 | clearout: |
723 | clear_bit(__I40EVF_IN_CRITICAL_TASK, &adapter->crit_section); | |
724 | out: | |
5eae00c5 GR |
725 | return f; |
726 | } | |
727 | ||
728 | /** | |
729 | * i40evf_del_vlan - Remove a vlan filter from the list | |
730 | * @adapter: board private structure | |
731 | * @vlan: VLAN tag | |
732 | **/ | |
733 | static void i40evf_del_vlan(struct i40evf_adapter *adapter, u16 vlan) | |
734 | { | |
735 | struct i40evf_vlan_filter *f; | |
13acb546 MW |
736 | int count = 50; |
737 | ||
738 | while (test_and_set_bit(__I40EVF_IN_CRITICAL_TASK, | |
739 | &adapter->crit_section)) { | |
740 | udelay(1); | |
741 | if (--count == 0) | |
742 | return; | |
743 | } | |
5eae00c5 GR |
744 | |
745 | f = i40evf_find_vlan(adapter, vlan); | |
746 | if (f) { | |
747 | f->remove = true; | |
748 | adapter->aq_required |= I40EVF_FLAG_AQ_DEL_VLAN_FILTER; | |
749 | } | |
13acb546 | 750 | clear_bit(__I40EVF_IN_CRITICAL_TASK, &adapter->crit_section); |
5eae00c5 GR |
751 | } |
752 | ||
753 | /** | |
754 | * i40evf_vlan_rx_add_vid - Add a VLAN filter to a device | |
755 | * @netdev: network device struct | |
756 | * @vid: VLAN tag | |
757 | **/ | |
758 | static int i40evf_vlan_rx_add_vid(struct net_device *netdev, | |
75a64435 | 759 | __always_unused __be16 proto, u16 vid) |
5eae00c5 GR |
760 | { |
761 | struct i40evf_adapter *adapter = netdev_priv(netdev); | |
762 | ||
8ed995ff MW |
763 | if (!VLAN_ALLOWED(adapter)) |
764 | return -EIO; | |
5eae00c5 GR |
765 | if (i40evf_add_vlan(adapter, vid) == NULL) |
766 | return -ENOMEM; | |
767 | return 0; | |
768 | } | |
769 | ||
770 | /** | |
771 | * i40evf_vlan_rx_kill_vid - Remove a VLAN filter from a device | |
772 | * @netdev: network device struct | |
773 | * @vid: VLAN tag | |
774 | **/ | |
775 | static int i40evf_vlan_rx_kill_vid(struct net_device *netdev, | |
75a64435 | 776 | __always_unused __be16 proto, u16 vid) |
5eae00c5 GR |
777 | { |
778 | struct i40evf_adapter *adapter = netdev_priv(netdev); | |
779 | ||
8ed995ff MW |
780 | if (VLAN_ALLOWED(adapter)) { |
781 | i40evf_del_vlan(adapter, vid); | |
782 | return 0; | |
783 | } | |
784 | return -EIO; | |
5eae00c5 GR |
785 | } |
786 | ||
787 | /** | |
788 | * i40evf_find_filter - Search filter list for specific mac filter | |
789 | * @adapter: board private structure | |
790 | * @macaddr: the MAC address | |
791 | * | |
792 | * Returns ptr to the filter object or NULL | |
793 | **/ | |
794 | static struct | |
795 | i40evf_mac_filter *i40evf_find_filter(struct i40evf_adapter *adapter, | |
796 | u8 *macaddr) | |
797 | { | |
798 | struct i40evf_mac_filter *f; | |
799 | ||
800 | if (!macaddr) | |
801 | return NULL; | |
802 | ||
803 | list_for_each_entry(f, &adapter->mac_filter_list, list) { | |
804 | if (ether_addr_equal(macaddr, f->macaddr)) | |
805 | return f; | |
806 | } | |
807 | return NULL; | |
808 | } | |
809 | ||
810 | /** | |
811 | * i40e_add_filter - Add a mac filter to the filter list | |
812 | * @adapter: board private structure | |
813 | * @macaddr: the MAC address | |
814 | * | |
815 | * Returns ptr to the filter object or NULL when no memory available. | |
816 | **/ | |
817 | static struct | |
818 | i40evf_mac_filter *i40evf_add_filter(struct i40evf_adapter *adapter, | |
819 | u8 *macaddr) | |
820 | { | |
821 | struct i40evf_mac_filter *f; | |
54e16f64 | 822 | int count = 50; |
5eae00c5 GR |
823 | |
824 | if (!macaddr) | |
825 | return NULL; | |
826 | ||
827 | while (test_and_set_bit(__I40EVF_IN_CRITICAL_TASK, | |
54e16f64 | 828 | &adapter->crit_section)) { |
b65476cd | 829 | udelay(1); |
54e16f64 MW |
830 | if (--count == 0) |
831 | return NULL; | |
832 | } | |
5eae00c5 GR |
833 | |
834 | f = i40evf_find_filter(adapter, macaddr); | |
348d4994 | 835 | if (!f) { |
5eae00c5 | 836 | f = kzalloc(sizeof(*f), GFP_ATOMIC); |
348d4994 | 837 | if (!f) { |
5eae00c5 GR |
838 | clear_bit(__I40EVF_IN_CRITICAL_TASK, |
839 | &adapter->crit_section); | |
840 | return NULL; | |
841 | } | |
842 | ||
9a173901 | 843 | ether_addr_copy(f->macaddr, macaddr); |
5eae00c5 GR |
844 | |
845 | list_add(&f->list, &adapter->mac_filter_list); | |
846 | f->add = true; | |
847 | adapter->aq_required |= I40EVF_FLAG_AQ_ADD_MAC_FILTER; | |
848 | } | |
849 | ||
850 | clear_bit(__I40EVF_IN_CRITICAL_TASK, &adapter->crit_section); | |
851 | return f; | |
852 | } | |
853 | ||
854 | /** | |
855 | * i40evf_set_mac - NDO callback to set port mac address | |
856 | * @netdev: network interface device structure | |
857 | * @p: pointer to an address structure | |
858 | * | |
859 | * Returns 0 on success, negative on failure | |
860 | **/ | |
861 | static int i40evf_set_mac(struct net_device *netdev, void *p) | |
862 | { | |
863 | struct i40evf_adapter *adapter = netdev_priv(netdev); | |
864 | struct i40e_hw *hw = &adapter->hw; | |
865 | struct i40evf_mac_filter *f; | |
866 | struct sockaddr *addr = p; | |
867 | ||
868 | if (!is_valid_ether_addr(addr->sa_data)) | |
869 | return -EADDRNOTAVAIL; | |
870 | ||
871 | if (ether_addr_equal(netdev->dev_addr, addr->sa_data)) | |
872 | return 0; | |
873 | ||
14e52ee2 MW |
874 | if (adapter->flags & I40EVF_FLAG_ADDR_SET_BY_PF) |
875 | return -EPERM; | |
876 | ||
877 | f = i40evf_find_filter(adapter, hw->mac.addr); | |
878 | if (f) { | |
879 | f->remove = true; | |
880 | adapter->aq_required |= I40EVF_FLAG_AQ_DEL_MAC_FILTER; | |
881 | } | |
882 | ||
5eae00c5 GR |
883 | f = i40evf_add_filter(adapter, addr->sa_data); |
884 | if (f) { | |
9a173901 GR |
885 | ether_addr_copy(hw->mac.addr, addr->sa_data); |
886 | ether_addr_copy(netdev->dev_addr, adapter->hw.mac.addr); | |
5eae00c5 GR |
887 | } |
888 | ||
889 | return (f == NULL) ? -ENOMEM : 0; | |
890 | } | |
891 | ||
892 | /** | |
893 | * i40evf_set_rx_mode - NDO callback to set the netdev filters | |
894 | * @netdev: network interface device structure | |
895 | **/ | |
896 | static void i40evf_set_rx_mode(struct net_device *netdev) | |
897 | { | |
898 | struct i40evf_adapter *adapter = netdev_priv(netdev); | |
899 | struct i40evf_mac_filter *f, *ftmp; | |
900 | struct netdev_hw_addr *uca; | |
901 | struct netdev_hw_addr *mca; | |
2f41f335 | 902 | struct netdev_hw_addr *ha; |
54e16f64 | 903 | int count = 50; |
5eae00c5 GR |
904 | |
905 | /* add addr if not already in the filter list */ | |
906 | netdev_for_each_uc_addr(uca, netdev) { | |
907 | i40evf_add_filter(adapter, uca->addr); | |
908 | } | |
909 | netdev_for_each_mc_addr(mca, netdev) { | |
910 | i40evf_add_filter(adapter, mca->addr); | |
911 | } | |
912 | ||
913 | while (test_and_set_bit(__I40EVF_IN_CRITICAL_TASK, | |
54e16f64 | 914 | &adapter->crit_section)) { |
b65476cd | 915 | udelay(1); |
54e16f64 MW |
916 | if (--count == 0) { |
917 | dev_err(&adapter->pdev->dev, | |
918 | "Failed to get lock in %s\n", __func__); | |
919 | return; | |
920 | } | |
921 | } | |
5eae00c5 GR |
922 | /* remove filter if not in netdev list */ |
923 | list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list, list) { | |
2f41f335 SN |
924 | netdev_for_each_mc_addr(mca, netdev) |
925 | if (ether_addr_equal(mca->addr, f->macaddr)) | |
926 | goto bottom_of_search_loop; | |
927 | ||
928 | netdev_for_each_uc_addr(uca, netdev) | |
929 | if (ether_addr_equal(uca->addr, f->macaddr)) | |
930 | goto bottom_of_search_loop; | |
931 | ||
932 | for_each_dev_addr(netdev, ha) | |
933 | if (ether_addr_equal(ha->addr, f->macaddr)) | |
934 | goto bottom_of_search_loop; | |
935 | ||
936 | if (ether_addr_equal(f->macaddr, adapter->hw.mac.addr)) | |
937 | goto bottom_of_search_loop; | |
938 | ||
939 | /* f->macaddr wasn't found in uc, mc, or ha list so delete it */ | |
940 | f->remove = true; | |
941 | adapter->aq_required |= I40EVF_FLAG_AQ_DEL_MAC_FILTER; | |
942 | ||
943 | bottom_of_search_loop: | |
944 | continue; | |
5eae00c5 GR |
945 | } |
946 | clear_bit(__I40EVF_IN_CRITICAL_TASK, &adapter->crit_section); | |
947 | } | |
948 | ||
949 | /** | |
950 | * i40evf_napi_enable_all - enable NAPI on all queue vectors | |
951 | * @adapter: board private structure | |
952 | **/ | |
953 | static void i40evf_napi_enable_all(struct i40evf_adapter *adapter) | |
954 | { | |
955 | int q_idx; | |
956 | struct i40e_q_vector *q_vector; | |
957 | int q_vectors = adapter->num_msix_vectors - NONQ_VECS; | |
958 | ||
959 | for (q_idx = 0; q_idx < q_vectors; q_idx++) { | |
960 | struct napi_struct *napi; | |
75a64435 | 961 | |
7d96ba1a | 962 | q_vector = &adapter->q_vectors[q_idx]; |
5eae00c5 GR |
963 | napi = &q_vector->napi; |
964 | napi_enable(napi); | |
965 | } | |
966 | } | |
967 | ||
968 | /** | |
969 | * i40evf_napi_disable_all - disable NAPI on all queue vectors | |
970 | * @adapter: board private structure | |
971 | **/ | |
972 | static void i40evf_napi_disable_all(struct i40evf_adapter *adapter) | |
973 | { | |
974 | int q_idx; | |
975 | struct i40e_q_vector *q_vector; | |
976 | int q_vectors = adapter->num_msix_vectors - NONQ_VECS; | |
977 | ||
978 | for (q_idx = 0; q_idx < q_vectors; q_idx++) { | |
7d96ba1a | 979 | q_vector = &adapter->q_vectors[q_idx]; |
5eae00c5 GR |
980 | napi_disable(&q_vector->napi); |
981 | } | |
982 | } | |
983 | ||
984 | /** | |
985 | * i40evf_configure - set up transmit and receive data structures | |
986 | * @adapter: board private structure | |
987 | **/ | |
988 | static void i40evf_configure(struct i40evf_adapter *adapter) | |
989 | { | |
990 | struct net_device *netdev = adapter->netdev; | |
991 | int i; | |
992 | ||
993 | i40evf_set_rx_mode(netdev); | |
994 | ||
995 | i40evf_configure_tx(adapter); | |
996 | i40evf_configure_rx(adapter); | |
997 | adapter->aq_required |= I40EVF_FLAG_AQ_CONFIGURE_QUEUES; | |
998 | ||
cc052927 | 999 | for (i = 0; i < adapter->num_active_queues; i++) { |
0dd438d8 | 1000 | struct i40e_ring *ring = &adapter->rx_rings[i]; |
75a64435 | 1001 | |
00e5ec4b MW |
1002 | if (adapter->flags & I40EVF_FLAG_RX_PS_ENABLED) { |
1003 | i40evf_alloc_rx_headers(ring); | |
1004 | i40evf_alloc_rx_buffers_ps(ring, ring->count); | |
1005 | } else { | |
a132af24 | 1006 | i40evf_alloc_rx_buffers_1buf(ring, ring->count); |
00e5ec4b | 1007 | } |
5eae00c5 GR |
1008 | ring->next_to_use = ring->count - 1; |
1009 | writel(ring->next_to_use, ring->tail); | |
1010 | } | |
1011 | } | |
1012 | ||
1013 | /** | |
1014 | * i40evf_up_complete - Finish the last steps of bringing up a connection | |
1015 | * @adapter: board private structure | |
1016 | **/ | |
1017 | static int i40evf_up_complete(struct i40evf_adapter *adapter) | |
1018 | { | |
1019 | adapter->state = __I40EVF_RUNNING; | |
1020 | clear_bit(__I40E_DOWN, &adapter->vsi.state); | |
1021 | ||
1022 | i40evf_napi_enable_all(adapter); | |
1023 | ||
1024 | adapter->aq_required |= I40EVF_FLAG_AQ_ENABLE_QUEUES; | |
1025 | mod_timer_pending(&adapter->watchdog_timer, jiffies + 1); | |
1026 | return 0; | |
1027 | } | |
1028 | ||
5eae00c5 GR |
1029 | /** |
1030 | * i40e_down - Shutdown the connection processing | |
1031 | * @adapter: board private structure | |
1032 | **/ | |
1033 | void i40evf_down(struct i40evf_adapter *adapter) | |
1034 | { | |
1035 | struct net_device *netdev = adapter->netdev; | |
1036 | struct i40evf_mac_filter *f; | |
1037 | ||
209dc4da | 1038 | if (adapter->state <= __I40EVF_DOWN_PENDING) |
ddf0b3a6 MW |
1039 | return; |
1040 | ||
53d0b3ae MW |
1041 | while (test_and_set_bit(__I40EVF_IN_CRITICAL_TASK, |
1042 | &adapter->crit_section)) | |
1043 | usleep_range(500, 1000); | |
1044 | ||
63e18c25 MW |
1045 | netif_carrier_off(netdev); |
1046 | netif_tx_disable(netdev); | |
748c434b | 1047 | i40evf_napi_disable_all(adapter); |
63e18c25 | 1048 | i40evf_irq_disable(adapter); |
53d0b3ae | 1049 | |
ef8693eb | 1050 | /* remove all MAC filters */ |
5eae00c5 GR |
1051 | list_for_each_entry(f, &adapter->mac_filter_list, list) { |
1052 | f->remove = true; | |
1053 | } | |
ed1f5b58 MW |
1054 | /* remove all VLAN filters */ |
1055 | list_for_each_entry(f, &adapter->vlan_filter_list, list) { | |
1056 | f->remove = true; | |
1057 | } | |
ef8693eb MW |
1058 | if (!(adapter->flags & I40EVF_FLAG_PF_COMMS_FAILED) && |
1059 | adapter->state != __I40EVF_RESETTING) { | |
53d0b3ae MW |
1060 | /* cancel any current operation */ |
1061 | adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN; | |
53d0b3ae MW |
1062 | /* Schedule operations to close down the HW. Don't wait |
1063 | * here for this to complete. The watchdog is still running | |
1064 | * and it will take care of this. | |
1065 | */ | |
1066 | adapter->aq_required = I40EVF_FLAG_AQ_DEL_MAC_FILTER; | |
ed1f5b58 | 1067 | adapter->aq_required |= I40EVF_FLAG_AQ_DEL_VLAN_FILTER; |
ef8693eb | 1068 | adapter->aq_required |= I40EVF_FLAG_AQ_DISABLE_QUEUES; |
ef8693eb | 1069 | } |
5eae00c5 | 1070 | |
53d0b3ae | 1071 | clear_bit(__I40EVF_IN_CRITICAL_TASK, &adapter->crit_section); |
5eae00c5 GR |
1072 | } |
1073 | ||
1074 | /** | |
1075 | * i40evf_acquire_msix_vectors - Setup the MSIX capability | |
1076 | * @adapter: board private structure | |
1077 | * @vectors: number of vectors to request | |
1078 | * | |
1079 | * Work with the OS to set up the MSIX vectors needed. | |
1080 | * | |
1081 | * Returns 0 on success, negative on failure | |
1082 | **/ | |
1083 | static int | |
1084 | i40evf_acquire_msix_vectors(struct i40evf_adapter *adapter, int vectors) | |
1085 | { | |
1086 | int err, vector_threshold; | |
1087 | ||
1088 | /* We'll want at least 3 (vector_threshold): | |
1089 | * 0) Other (Admin Queue and link, mostly) | |
1090 | * 1) TxQ[0] Cleanup | |
1091 | * 2) RxQ[0] Cleanup | |
1092 | */ | |
1093 | vector_threshold = MIN_MSIX_COUNT; | |
1094 | ||
1095 | /* The more we get, the more we will assign to Tx/Rx Cleanup | |
1096 | * for the separate queues...where Rx Cleanup >= Tx Cleanup. | |
1097 | * Right now, we simply care about how many we'll get; we'll | |
1098 | * set them up later while requesting irq's. | |
1099 | */ | |
fc2f2f5d AG |
1100 | err = pci_enable_msix_range(adapter->pdev, adapter->msix_entries, |
1101 | vector_threshold, vectors); | |
1102 | if (err < 0) { | |
80e72893 | 1103 | dev_err(&adapter->pdev->dev, "Unable to allocate MSI-X interrupts\n"); |
5eae00c5 GR |
1104 | kfree(adapter->msix_entries); |
1105 | adapter->msix_entries = NULL; | |
fc2f2f5d | 1106 | return err; |
5eae00c5 | 1107 | } |
fc2f2f5d AG |
1108 | |
1109 | /* Adjust for only the vectors we'll use, which is minimum | |
1110 | * of max_msix_q_vectors + NONQ_VECS, or the number of | |
1111 | * vectors we were allocated. | |
1112 | */ | |
1113 | adapter->num_msix_vectors = err; | |
1114 | return 0; | |
5eae00c5 GR |
1115 | } |
1116 | ||
1117 | /** | |
1118 | * i40evf_free_queues - Free memory for all rings | |
1119 | * @adapter: board private structure to initialize | |
1120 | * | |
1121 | * Free all of the memory associated with queue pairs. | |
1122 | **/ | |
1123 | static void i40evf_free_queues(struct i40evf_adapter *adapter) | |
1124 | { | |
5eae00c5 GR |
1125 | if (!adapter->vsi_res) |
1126 | return; | |
0dd438d8 | 1127 | kfree(adapter->tx_rings); |
10311540 | 1128 | adapter->tx_rings = NULL; |
0dd438d8 | 1129 | kfree(adapter->rx_rings); |
10311540 | 1130 | adapter->rx_rings = NULL; |
5eae00c5 GR |
1131 | } |
1132 | ||
1133 | /** | |
1134 | * i40evf_alloc_queues - Allocate memory for all rings | |
1135 | * @adapter: board private structure to initialize | |
1136 | * | |
1137 | * We allocate one ring per queue at run-time since we don't know the | |
1138 | * number of queues at compile-time. The polling_netdev array is | |
1139 | * intended for Multiqueue, but should work fine with a single queue. | |
1140 | **/ | |
1141 | static int i40evf_alloc_queues(struct i40evf_adapter *adapter) | |
1142 | { | |
1143 | int i; | |
1144 | ||
0dd438d8 MW |
1145 | adapter->tx_rings = kcalloc(adapter->num_active_queues, |
1146 | sizeof(struct i40e_ring), GFP_KERNEL); | |
1147 | if (!adapter->tx_rings) | |
1148 | goto err_out; | |
1149 | adapter->rx_rings = kcalloc(adapter->num_active_queues, | |
1150 | sizeof(struct i40e_ring), GFP_KERNEL); | |
1151 | if (!adapter->rx_rings) | |
1152 | goto err_out; | |
1153 | ||
cc052927 | 1154 | for (i = 0; i < adapter->num_active_queues; i++) { |
5eae00c5 GR |
1155 | struct i40e_ring *tx_ring; |
1156 | struct i40e_ring *rx_ring; | |
1157 | ||
0dd438d8 | 1158 | tx_ring = &adapter->tx_rings[i]; |
5eae00c5 GR |
1159 | |
1160 | tx_ring->queue_index = i; | |
1161 | tx_ring->netdev = adapter->netdev; | |
1162 | tx_ring->dev = &adapter->pdev->dev; | |
d732a184 | 1163 | tx_ring->count = adapter->tx_desc_count; |
1f012279 ASJ |
1164 | if (adapter->flags & I40E_FLAG_WB_ON_ITR_CAPABLE) |
1165 | tx_ring->flags |= I40E_TXR_FLAGS_WB_ON_ITR; | |
5eae00c5 | 1166 | |
0dd438d8 | 1167 | rx_ring = &adapter->rx_rings[i]; |
5eae00c5 GR |
1168 | rx_ring->queue_index = i; |
1169 | rx_ring->netdev = adapter->netdev; | |
1170 | rx_ring->dev = &adapter->pdev->dev; | |
d732a184 | 1171 | rx_ring->count = adapter->rx_desc_count; |
5eae00c5 GR |
1172 | } |
1173 | ||
1174 | return 0; | |
1175 | ||
1176 | err_out: | |
1177 | i40evf_free_queues(adapter); | |
1178 | return -ENOMEM; | |
1179 | } | |
1180 | ||
1181 | /** | |
1182 | * i40evf_set_interrupt_capability - set MSI-X or FAIL if not supported | |
1183 | * @adapter: board private structure to initialize | |
1184 | * | |
1185 | * Attempt to configure the interrupts using the best available | |
1186 | * capabilities of the hardware and the kernel. | |
1187 | **/ | |
1188 | static int i40evf_set_interrupt_capability(struct i40evf_adapter *adapter) | |
1189 | { | |
1190 | int vector, v_budget; | |
1191 | int pairs = 0; | |
1192 | int err = 0; | |
1193 | ||
1194 | if (!adapter->vsi_res) { | |
1195 | err = -EIO; | |
1196 | goto out; | |
1197 | } | |
cc052927 | 1198 | pairs = adapter->num_active_queues; |
5eae00c5 GR |
1199 | |
1200 | /* It's easy to be greedy for MSI-X vectors, but it really | |
1201 | * doesn't do us much good if we have a lot more vectors | |
1202 | * than CPU's. So let's be conservative and only ask for | |
1203 | * (roughly) twice the number of vectors as there are CPU's. | |
1204 | */ | |
30a500e2 MW |
1205 | v_budget = min_t(int, pairs, (int)(num_online_cpus() * 2)) + NONQ_VECS; |
1206 | v_budget = min_t(int, v_budget, (int)adapter->vf_res->max_vectors); | |
5eae00c5 | 1207 | |
5eae00c5 GR |
1208 | adapter->msix_entries = kcalloc(v_budget, |
1209 | sizeof(struct msix_entry), GFP_KERNEL); | |
1210 | if (!adapter->msix_entries) { | |
1211 | err = -ENOMEM; | |
1212 | goto out; | |
1213 | } | |
1214 | ||
1215 | for (vector = 0; vector < v_budget; vector++) | |
1216 | adapter->msix_entries[vector].entry = vector; | |
1217 | ||
313ed2d5 | 1218 | err = i40evf_acquire_msix_vectors(adapter, v_budget); |
5eae00c5 GR |
1219 | |
1220 | out: | |
e6c4cf6f MW |
1221 | netif_set_real_num_rx_queues(adapter->netdev, pairs); |
1222 | netif_set_real_num_tx_queues(adapter->netdev, pairs); | |
5eae00c5 GR |
1223 | return err; |
1224 | } | |
1225 | ||
e25d00b8 | 1226 | /** |
2c86ac3c | 1227 | * i40e_config_rss_aq - Prepare for RSS using AQ commands |
e25d00b8 ASJ |
1228 | * @vsi: vsi structure |
1229 | * @seed: RSS hash seed | |
2c86ac3c HZ |
1230 | * @lut: Lookup table |
1231 | * @lut_size: Lookup table size | |
1232 | * | |
1233 | * Return 0 on success, negative on failure | |
e25d00b8 | 1234 | **/ |
2c86ac3c HZ |
1235 | static int i40evf_config_rss_aq(struct i40e_vsi *vsi, const u8 *seed, |
1236 | u8 *lut, u16 lut_size) | |
e25d00b8 | 1237 | { |
e25d00b8 ASJ |
1238 | struct i40evf_adapter *adapter = vsi->back; |
1239 | struct i40e_hw *hw = &adapter->hw; | |
2c86ac3c | 1240 | int ret = 0; |
e25d00b8 ASJ |
1241 | |
1242 | if (!vsi->id) | |
2c86ac3c | 1243 | return -EINVAL; |
e25d00b8 ASJ |
1244 | |
1245 | if (adapter->current_op != I40E_VIRTCHNL_OP_UNKNOWN) { | |
1246 | /* bail because we already have a command pending */ | |
e3d132d1 | 1247 | dev_err(&adapter->pdev->dev, "Cannot configure RSS, command %d pending\n", |
e25d00b8 | 1248 | adapter->current_op); |
2c86ac3c | 1249 | return -EBUSY; |
e25d00b8 ASJ |
1250 | } |
1251 | ||
2c86ac3c HZ |
1252 | if (seed) { |
1253 | struct i40e_aqc_get_set_rss_key_data *rss_key = | |
1254 | (struct i40e_aqc_get_set_rss_key_data *)seed; | |
1255 | ret = i40evf_aq_set_rss_key(hw, vsi->id, rss_key); | |
1256 | if (ret) { | |
1257 | dev_err(&adapter->pdev->dev, "Cannot set RSS key, err %s aq_err %s\n", | |
1258 | i40evf_stat_str(hw, ret), | |
1259 | i40evf_aq_str(hw, hw->aq.asq_last_status)); | |
1260 | return ret; | |
1261 | } | |
1262 | } | |
e25d00b8 | 1263 | |
2c86ac3c HZ |
1264 | if (lut) { |
1265 | ret = i40evf_aq_set_rss_lut(hw, vsi->id, false, lut, lut_size); | |
1266 | if (ret) { | |
1267 | dev_err(&adapter->pdev->dev, | |
1268 | "Cannot set RSS lut, err %s aq_err %s\n", | |
1269 | i40evf_stat_str(hw, ret), | |
1270 | i40evf_aq_str(hw, hw->aq.asq_last_status)); | |
1271 | return ret; | |
1272 | } | |
e25d00b8 ASJ |
1273 | } |
1274 | ||
2c86ac3c | 1275 | return ret; |
e25d00b8 ASJ |
1276 | } |
1277 | ||
1278 | /** | |
2c86ac3c HZ |
1279 | * i40evf_config_rss_reg - Configure RSS keys and lut by writing registers |
1280 | * @vsi: Pointer to vsi structure | |
e25d00b8 | 1281 | * @seed: RSS hash seed |
2c86ac3c HZ |
1282 | * @lut: Lookup table |
1283 | * @lut_size: Lookup table size | |
1284 | * | |
1285 | * Returns 0 on success, negative on failure | |
e25d00b8 | 1286 | **/ |
2c86ac3c HZ |
1287 | static int i40evf_config_rss_reg(struct i40e_vsi *vsi, const u8 *seed, |
1288 | const u8 *lut, u16 lut_size) | |
e25d00b8 | 1289 | { |
2c86ac3c | 1290 | struct i40evf_adapter *adapter = vsi->back; |
e25d00b8 | 1291 | struct i40e_hw *hw = &adapter->hw; |
2c86ac3c | 1292 | u16 i; |
e25d00b8 | 1293 | |
2c86ac3c HZ |
1294 | if (seed) { |
1295 | u32 *seed_dw = (u32 *)seed; | |
1296 | ||
1297 | for (i = 0; i <= I40E_VFQF_HKEY_MAX_INDEX; i++) | |
1298 | wr32(hw, I40E_VFQF_HKEY(i), seed_dw[i]); | |
1299 | } | |
1300 | ||
1301 | if (lut) { | |
1302 | u32 *lut_dw = (u32 *)lut; | |
1303 | ||
1304 | if (lut_size != I40EVF_HLUT_ARRAY_SIZE) | |
1305 | return -EINVAL; | |
1306 | ||
1307 | for (i = 0; i <= I40E_VFQF_HLUT_MAX_INDEX; i++) | |
1308 | wr32(hw, I40E_VFQF_HLUT(i), lut_dw[i]); | |
e25d00b8 ASJ |
1309 | } |
1310 | i40e_flush(hw); | |
2c86ac3c HZ |
1311 | |
1312 | return 0; | |
1313 | } | |
1314 | ||
90b02b43 HZ |
1315 | /** |
1316 | * * i40evf_get_rss_aq - Get RSS keys and lut by using AQ commands | |
1317 | * @vsi: Pointer to vsi structure | |
1318 | * @seed: RSS hash seed | |
1319 | * @lut: Lookup table | |
1320 | * @lut_size: Lookup table size | |
1321 | * | |
1322 | * Return 0 on success, negative on failure | |
1323 | **/ | |
1324 | static int i40evf_get_rss_aq(struct i40e_vsi *vsi, const u8 *seed, | |
1325 | u8 *lut, u16 lut_size) | |
1326 | { | |
1327 | struct i40evf_adapter *adapter = vsi->back; | |
1328 | struct i40e_hw *hw = &adapter->hw; | |
1329 | int ret = 0; | |
1330 | ||
1331 | if (seed) { | |
1332 | ret = i40evf_aq_get_rss_key(hw, vsi->id, | |
1333 | (struct i40e_aqc_get_set_rss_key_data *)seed); | |
1334 | if (ret) { | |
1335 | dev_err(&adapter->pdev->dev, | |
1336 | "Cannot get RSS key, err %s aq_err %s\n", | |
1337 | i40evf_stat_str(hw, ret), | |
1338 | i40evf_aq_str(hw, hw->aq.asq_last_status)); | |
1339 | return ret; | |
1340 | } | |
1341 | } | |
1342 | ||
1343 | if (lut) { | |
1344 | ret = i40evf_aq_get_rss_lut(hw, vsi->id, seed, lut, lut_size); | |
1345 | if (ret) { | |
1346 | dev_err(&adapter->pdev->dev, | |
1347 | "Cannot get RSS lut, err %s aq_err %s\n", | |
1348 | i40evf_stat_str(hw, ret), | |
1349 | i40evf_aq_str(hw, hw->aq.asq_last_status)); | |
1350 | return ret; | |
1351 | } | |
1352 | } | |
1353 | ||
1354 | return ret; | |
1355 | } | |
1356 | ||
1357 | /** | |
1358 | * * i40evf_get_rss_reg - Get RSS keys and lut by reading registers | |
1359 | * @vsi: Pointer to vsi structure | |
1360 | * @seed: RSS hash seed | |
1361 | * @lut: Lookup table | |
1362 | * @lut_size: Lookup table size | |
1363 | * | |
1364 | * Returns 0 on success, negative on failure | |
1365 | **/ | |
1366 | static int i40evf_get_rss_reg(struct i40e_vsi *vsi, const u8 *seed, | |
1367 | const u8 *lut, u16 lut_size) | |
1368 | { | |
1369 | struct i40evf_adapter *adapter = vsi->back; | |
1370 | struct i40e_hw *hw = &adapter->hw; | |
1371 | u16 i; | |
1372 | ||
1373 | if (seed) { | |
1374 | u32 *seed_dw = (u32 *)seed; | |
1375 | ||
1376 | for (i = 0; i <= I40E_VFQF_HKEY_MAX_INDEX; i++) | |
1377 | seed_dw[i] = rd32(hw, I40E_VFQF_HKEY(i)); | |
1378 | } | |
1379 | ||
1380 | if (lut) { | |
1381 | u32 *lut_dw = (u32 *)lut; | |
1382 | ||
1383 | if (lut_size != I40EVF_HLUT_ARRAY_SIZE) | |
1384 | return -EINVAL; | |
1385 | ||
1386 | for (i = 0; i <= I40E_VFQF_HLUT_MAX_INDEX; i++) | |
1387 | lut_dw[i] = rd32(hw, I40E_VFQF_HLUT(i)); | |
1388 | } | |
1389 | ||
1390 | return 0; | |
1391 | } | |
1392 | ||
2c86ac3c HZ |
1393 | /** |
1394 | * i40evf_config_rss - Configure RSS keys and lut | |
1395 | * @vsi: Pointer to vsi structure | |
1396 | * @seed: RSS hash seed | |
1397 | * @lut: Lookup table | |
1398 | * @lut_size: Lookup table size | |
1399 | * | |
1400 | * Returns 0 on success, negative on failure | |
1401 | **/ | |
1402 | int i40evf_config_rss(struct i40e_vsi *vsi, const u8 *seed, | |
1403 | u8 *lut, u16 lut_size) | |
1404 | { | |
1405 | struct i40evf_adapter *adapter = vsi->back; | |
1406 | ||
1407 | if (RSS_AQ(adapter)) | |
1408 | return i40evf_config_rss_aq(vsi, seed, lut, lut_size); | |
1409 | else | |
1410 | return i40evf_config_rss_reg(vsi, seed, lut, lut_size); | |
1411 | } | |
1412 | ||
90b02b43 HZ |
1413 | /** |
1414 | * i40evf_get_rss - Get RSS keys and lut | |
1415 | * @vsi: Pointer to vsi structure | |
1416 | * @seed: RSS hash seed | |
1417 | * @lut: Lookup table | |
1418 | * @lut_size: Lookup table size | |
1419 | * | |
1420 | * Returns 0 on success, negative on failure | |
1421 | **/ | |
1422 | int i40evf_get_rss(struct i40e_vsi *vsi, const u8 *seed, u8 *lut, u16 lut_size) | |
1423 | { | |
1424 | struct i40evf_adapter *adapter = vsi->back; | |
1425 | ||
1426 | if (RSS_AQ(adapter)) | |
1427 | return i40evf_get_rss_aq(vsi, seed, lut, lut_size); | |
1428 | else | |
1429 | return i40evf_get_rss_reg(vsi, seed, lut, lut_size); | |
1430 | } | |
1431 | ||
2c86ac3c HZ |
1432 | /** |
1433 | * i40evf_fill_rss_lut - Fill the lut with default values | |
1434 | * @lut: Lookup table to be filled with | |
1435 | * @rss_table_size: Lookup table size | |
1436 | * @rss_size: Range of queue number for hashing | |
1437 | **/ | |
1438 | static void i40evf_fill_rss_lut(u8 *lut, u16 rss_table_size, u16 rss_size) | |
1439 | { | |
1440 | u16 i; | |
1441 | ||
1442 | for (i = 0; i < rss_table_size; i++) | |
1443 | lut[i] = i % rss_size; | |
e25d00b8 ASJ |
1444 | } |
1445 | ||
1446 | /** | |
96a81986 | 1447 | * i40evf_init_rss - Prepare for RSS |
e25d00b8 | 1448 | * @adapter: board private structure |
2c86ac3c HZ |
1449 | * |
1450 | * Return 0 on success, negative on failure | |
e25d00b8 | 1451 | **/ |
2c86ac3c | 1452 | static int i40evf_init_rss(struct i40evf_adapter *adapter) |
e25d00b8 | 1453 | { |
2c86ac3c | 1454 | struct i40e_vsi *vsi = &adapter->vsi; |
e25d00b8 ASJ |
1455 | struct i40e_hw *hw = &adapter->hw; |
1456 | u8 seed[I40EVF_HKEY_ARRAY_SIZE]; | |
1457 | u64 hena; | |
2c86ac3c HZ |
1458 | u8 *lut; |
1459 | int ret; | |
e25d00b8 ASJ |
1460 | |
1461 | /* Enable PCTYPES for RSS, TCP/UDP with IPv4/IPv6 */ | |
3d0da5b7 ASJ |
1462 | if (adapter->vf_res->vf_offload_flags & |
1463 | I40E_VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2) | |
1464 | hena = I40E_DEFAULT_RSS_HENA_EXPANDED; | |
1465 | else | |
1466 | hena = I40E_DEFAULT_RSS_HENA; | |
e25d00b8 ASJ |
1467 | wr32(hw, I40E_VFQF_HENA(0), (u32)hena); |
1468 | wr32(hw, I40E_VFQF_HENA(1), (u32)(hena >> 32)); | |
1469 | ||
2c86ac3c HZ |
1470 | lut = kzalloc(I40EVF_HLUT_ARRAY_SIZE, GFP_KERNEL); |
1471 | if (!lut) | |
1472 | return -ENOMEM; | |
66f9af85 HZ |
1473 | |
1474 | /* Use user configured lut if there is one, otherwise use default */ | |
1475 | if (vsi->rss_lut_user) | |
1476 | memcpy(lut, vsi->rss_lut_user, I40EVF_HLUT_ARRAY_SIZE); | |
1477 | else | |
1478 | i40evf_fill_rss_lut(lut, I40EVF_HLUT_ARRAY_SIZE, | |
1479 | adapter->num_active_queues); | |
1480 | ||
1481 | /* Use user configured hash key if there is one, otherwise | |
1482 | * user default. | |
1483 | */ | |
1484 | if (vsi->rss_hkey_user) | |
1485 | memcpy(seed, vsi->rss_hkey_user, I40EVF_HKEY_ARRAY_SIZE); | |
1486 | else | |
1487 | netdev_rss_key_fill((void *)seed, I40EVF_HKEY_ARRAY_SIZE); | |
2c86ac3c HZ |
1488 | ret = i40evf_config_rss(vsi, seed, lut, I40EVF_HLUT_ARRAY_SIZE); |
1489 | kfree(lut); | |
1490 | ||
1491 | return ret; | |
e25d00b8 ASJ |
1492 | } |
1493 | ||
5eae00c5 GR |
1494 | /** |
1495 | * i40evf_alloc_q_vectors - Allocate memory for interrupt vectors | |
1496 | * @adapter: board private structure to initialize | |
1497 | * | |
1498 | * We allocate one q_vector per queue interrupt. If allocation fails we | |
1499 | * return -ENOMEM. | |
1500 | **/ | |
1501 | static int i40evf_alloc_q_vectors(struct i40evf_adapter *adapter) | |
1502 | { | |
7d96ba1a | 1503 | int q_idx = 0, num_q_vectors; |
5eae00c5 GR |
1504 | struct i40e_q_vector *q_vector; |
1505 | ||
1506 | num_q_vectors = adapter->num_msix_vectors - NONQ_VECS; | |
0dd438d8 | 1507 | adapter->q_vectors = kcalloc(num_q_vectors, sizeof(*q_vector), |
7d96ba1a MW |
1508 | GFP_KERNEL); |
1509 | if (!adapter->q_vectors) | |
1510 | goto err_out; | |
5eae00c5 GR |
1511 | |
1512 | for (q_idx = 0; q_idx < num_q_vectors; q_idx++) { | |
7d96ba1a | 1513 | q_vector = &adapter->q_vectors[q_idx]; |
5eae00c5 GR |
1514 | q_vector->adapter = adapter; |
1515 | q_vector->vsi = &adapter->vsi; | |
1516 | q_vector->v_idx = q_idx; | |
1517 | netif_napi_add(adapter->netdev, &q_vector->napi, | |
75a64435 | 1518 | i40evf_napi_poll, NAPI_POLL_WEIGHT); |
5eae00c5 GR |
1519 | } |
1520 | ||
1521 | return 0; | |
1522 | ||
1523 | err_out: | |
1524 | while (q_idx) { | |
1525 | q_idx--; | |
7d96ba1a | 1526 | q_vector = &adapter->q_vectors[q_idx]; |
5eae00c5 | 1527 | netif_napi_del(&q_vector->napi); |
5eae00c5 | 1528 | } |
7d96ba1a | 1529 | kfree(adapter->q_vectors); |
5eae00c5 GR |
1530 | return -ENOMEM; |
1531 | } | |
1532 | ||
1533 | /** | |
1534 | * i40evf_free_q_vectors - Free memory allocated for interrupt vectors | |
1535 | * @adapter: board private structure to initialize | |
1536 | * | |
1537 | * This function frees the memory allocated to the q_vectors. In addition if | |
1538 | * NAPI is enabled it will delete any references to the NAPI struct prior | |
1539 | * to freeing the q_vector. | |
1540 | **/ | |
1541 | static void i40evf_free_q_vectors(struct i40evf_adapter *adapter) | |
1542 | { | |
1543 | int q_idx, num_q_vectors; | |
1544 | int napi_vectors; | |
1545 | ||
1546 | num_q_vectors = adapter->num_msix_vectors - NONQ_VECS; | |
cc052927 | 1547 | napi_vectors = adapter->num_active_queues; |
5eae00c5 GR |
1548 | |
1549 | for (q_idx = 0; q_idx < num_q_vectors; q_idx++) { | |
7d96ba1a | 1550 | struct i40e_q_vector *q_vector = &adapter->q_vectors[q_idx]; |
5eae00c5 GR |
1551 | if (q_idx < napi_vectors) |
1552 | netif_napi_del(&q_vector->napi); | |
5eae00c5 | 1553 | } |
7d96ba1a | 1554 | kfree(adapter->q_vectors); |
5eae00c5 GR |
1555 | } |
1556 | ||
1557 | /** | |
1558 | * i40evf_reset_interrupt_capability - Reset MSIX setup | |
1559 | * @adapter: board private structure | |
1560 | * | |
1561 | **/ | |
1562 | void i40evf_reset_interrupt_capability(struct i40evf_adapter *adapter) | |
1563 | { | |
1564 | pci_disable_msix(adapter->pdev); | |
1565 | kfree(adapter->msix_entries); | |
1566 | adapter->msix_entries = NULL; | |
5eae00c5 GR |
1567 | } |
1568 | ||
1569 | /** | |
1570 | * i40evf_init_interrupt_scheme - Determine if MSIX is supported and init | |
1571 | * @adapter: board private structure to initialize | |
1572 | * | |
1573 | **/ | |
1574 | int i40evf_init_interrupt_scheme(struct i40evf_adapter *adapter) | |
1575 | { | |
1576 | int err; | |
1577 | ||
1578 | err = i40evf_set_interrupt_capability(adapter); | |
1579 | if (err) { | |
1580 | dev_err(&adapter->pdev->dev, | |
1581 | "Unable to setup interrupt capabilities\n"); | |
1582 | goto err_set_interrupt; | |
1583 | } | |
1584 | ||
1585 | err = i40evf_alloc_q_vectors(adapter); | |
1586 | if (err) { | |
1587 | dev_err(&adapter->pdev->dev, | |
1588 | "Unable to allocate memory for queue vectors\n"); | |
1589 | goto err_alloc_q_vectors; | |
1590 | } | |
1591 | ||
1592 | err = i40evf_alloc_queues(adapter); | |
1593 | if (err) { | |
1594 | dev_err(&adapter->pdev->dev, | |
1595 | "Unable to allocate memory for queues\n"); | |
1596 | goto err_alloc_queues; | |
1597 | } | |
1598 | ||
1599 | dev_info(&adapter->pdev->dev, "Multiqueue %s: Queue pair count = %u", | |
75a64435 MW |
1600 | (adapter->num_active_queues > 1) ? "Enabled" : "Disabled", |
1601 | adapter->num_active_queues); | |
5eae00c5 GR |
1602 | |
1603 | return 0; | |
1604 | err_alloc_queues: | |
1605 | i40evf_free_q_vectors(adapter); | |
1606 | err_alloc_q_vectors: | |
1607 | i40evf_reset_interrupt_capability(adapter); | |
1608 | err_set_interrupt: | |
1609 | return err; | |
1610 | } | |
1611 | ||
66f9af85 HZ |
1612 | /** |
1613 | * i40evf_clear_rss_config_user - Clear user configurations of RSS | |
1614 | * @vsi: Pointer to VSI structure | |
1615 | **/ | |
1616 | static void i40evf_clear_rss_config_user(struct i40e_vsi *vsi) | |
1617 | { | |
1618 | if (!vsi) | |
1619 | return; | |
1620 | ||
1621 | kfree(vsi->rss_hkey_user); | |
1622 | vsi->rss_hkey_user = NULL; | |
1623 | ||
1624 | kfree(vsi->rss_lut_user); | |
1625 | vsi->rss_lut_user = NULL; | |
1626 | } | |
1627 | ||
5eae00c5 GR |
1628 | /** |
1629 | * i40evf_watchdog_timer - Periodic call-back timer | |
1630 | * @data: pointer to adapter disguised as unsigned long | |
1631 | **/ | |
1632 | static void i40evf_watchdog_timer(unsigned long data) | |
1633 | { | |
1634 | struct i40evf_adapter *adapter = (struct i40evf_adapter *)data; | |
75a64435 | 1635 | |
5eae00c5 GR |
1636 | schedule_work(&adapter->watchdog_task); |
1637 | /* timer will be rescheduled in watchdog task */ | |
1638 | } | |
1639 | ||
1640 | /** | |
1641 | * i40evf_watchdog_task - Periodic call-back task | |
1642 | * @work: pointer to work_struct | |
1643 | **/ | |
1644 | static void i40evf_watchdog_task(struct work_struct *work) | |
1645 | { | |
1646 | struct i40evf_adapter *adapter = container_of(work, | |
75a64435 MW |
1647 | struct i40evf_adapter, |
1648 | watchdog_task); | |
5eae00c5 | 1649 | struct i40e_hw *hw = &adapter->hw; |
ee5c1e92 | 1650 | u32 reg_val; |
5eae00c5 | 1651 | |
ef8693eb MW |
1652 | if (test_and_set_bit(__I40EVF_IN_CRITICAL_TASK, &adapter->crit_section)) |
1653 | goto restart_watchdog; | |
1654 | ||
1655 | if (adapter->flags & I40EVF_FLAG_PF_COMMS_FAILED) { | |
ee5c1e92 MW |
1656 | reg_val = rd32(hw, I40E_VFGEN_RSTAT) & |
1657 | I40E_VFGEN_RSTAT_VFR_STATE_MASK; | |
1658 | if ((reg_val == I40E_VFR_VFACTIVE) || | |
1659 | (reg_val == I40E_VFR_COMPLETED)) { | |
ef8693eb MW |
1660 | /* A chance for redemption! */ |
1661 | dev_err(&adapter->pdev->dev, "Hardware came out of reset. Attempting reinit.\n"); | |
1662 | adapter->state = __I40EVF_STARTUP; | |
1663 | adapter->flags &= ~I40EVF_FLAG_PF_COMMS_FAILED; | |
1664 | schedule_delayed_work(&adapter->init_task, 10); | |
1665 | clear_bit(__I40EVF_IN_CRITICAL_TASK, | |
1666 | &adapter->crit_section); | |
1667 | /* Don't reschedule the watchdog, since we've restarted | |
1668 | * the init task. When init_task contacts the PF and | |
1669 | * gets everything set up again, it'll restart the | |
1670 | * watchdog for us. Down, boy. Sit. Stay. Woof. | |
1671 | */ | |
1672 | return; | |
1673 | } | |
ef8693eb MW |
1674 | adapter->aq_required = 0; |
1675 | adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN; | |
5eae00c5 | 1676 | goto watchdog_done; |
ef8693eb | 1677 | } |
5eae00c5 | 1678 | |
ef8693eb MW |
1679 | if ((adapter->state < __I40EVF_DOWN) || |
1680 | (adapter->flags & I40EVF_FLAG_RESET_PENDING)) | |
5eae00c5 GR |
1681 | goto watchdog_done; |
1682 | ||
ef8693eb | 1683 | /* check for reset */ |
ee5c1e92 MW |
1684 | reg_val = rd32(hw, I40E_VF_ARQLEN1) & I40E_VF_ARQLEN1_ARQENABLE_MASK; |
1685 | if (!(adapter->flags & I40EVF_FLAG_RESET_PENDING) && !reg_val) { | |
5eae00c5 | 1686 | adapter->state = __I40EVF_RESETTING; |
ef8693eb | 1687 | adapter->flags |= I40EVF_FLAG_RESET_PENDING; |
249c8b8d | 1688 | dev_err(&adapter->pdev->dev, "Hardware reset detected\n"); |
5eae00c5 | 1689 | schedule_work(&adapter->reset_task); |
ef8693eb MW |
1690 | adapter->aq_required = 0; |
1691 | adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN; | |
5eae00c5 GR |
1692 | goto watchdog_done; |
1693 | } | |
1694 | ||
1695 | /* Process admin queue tasks. After init, everything gets done | |
1696 | * here so we don't race on the admin queue. | |
1697 | */ | |
ed636960 | 1698 | if (adapter->current_op) { |
0758e7cb MW |
1699 | if (!i40evf_asq_done(hw)) { |
1700 | dev_dbg(&adapter->pdev->dev, "Admin queue timeout\n"); | |
1701 | i40evf_send_api_ver(adapter); | |
1702 | } | |
5eae00c5 | 1703 | goto watchdog_done; |
0758e7cb | 1704 | } |
e6d038de MW |
1705 | if (adapter->aq_required & I40EVF_FLAG_AQ_GET_CONFIG) { |
1706 | i40evf_send_vf_config_msg(adapter); | |
1707 | goto watchdog_done; | |
1708 | } | |
5eae00c5 | 1709 | |
e284fc88 MW |
1710 | if (adapter->aq_required & I40EVF_FLAG_AQ_DISABLE_QUEUES) { |
1711 | i40evf_disable_queues(adapter); | |
1712 | goto watchdog_done; | |
1713 | } | |
1714 | ||
5eae00c5 GR |
1715 | if (adapter->aq_required & I40EVF_FLAG_AQ_MAP_VECTORS) { |
1716 | i40evf_map_queues(adapter); | |
1717 | goto watchdog_done; | |
1718 | } | |
1719 | ||
1720 | if (adapter->aq_required & I40EVF_FLAG_AQ_ADD_MAC_FILTER) { | |
1721 | i40evf_add_ether_addrs(adapter); | |
1722 | goto watchdog_done; | |
1723 | } | |
1724 | ||
1725 | if (adapter->aq_required & I40EVF_FLAG_AQ_ADD_VLAN_FILTER) { | |
1726 | i40evf_add_vlans(adapter); | |
1727 | goto watchdog_done; | |
1728 | } | |
1729 | ||
1730 | if (adapter->aq_required & I40EVF_FLAG_AQ_DEL_MAC_FILTER) { | |
1731 | i40evf_del_ether_addrs(adapter); | |
1732 | goto watchdog_done; | |
1733 | } | |
1734 | ||
1735 | if (adapter->aq_required & I40EVF_FLAG_AQ_DEL_VLAN_FILTER) { | |
1736 | i40evf_del_vlans(adapter); | |
1737 | goto watchdog_done; | |
1738 | } | |
1739 | ||
5eae00c5 GR |
1740 | if (adapter->aq_required & I40EVF_FLAG_AQ_CONFIGURE_QUEUES) { |
1741 | i40evf_configure_queues(adapter); | |
1742 | goto watchdog_done; | |
1743 | } | |
1744 | ||
1745 | if (adapter->aq_required & I40EVF_FLAG_AQ_ENABLE_QUEUES) { | |
1746 | i40evf_enable_queues(adapter); | |
1747 | goto watchdog_done; | |
1748 | } | |
1749 | ||
e25d00b8 ASJ |
1750 | if (adapter->aq_required & I40EVF_FLAG_AQ_CONFIGURE_RSS) { |
1751 | /* This message goes straight to the firmware, not the | |
1752 | * PF, so we don't have to set current_op as we will | |
1753 | * not get a response through the ARQ. | |
1754 | */ | |
96a81986 | 1755 | i40evf_init_rss(adapter); |
e25d00b8 ASJ |
1756 | adapter->aq_required &= ~I40EVF_FLAG_AQ_CONFIGURE_RSS; |
1757 | goto watchdog_done; | |
1758 | } | |
1759 | ||
5eae00c5 GR |
1760 | if (adapter->state == __I40EVF_RUNNING) |
1761 | i40evf_request_stats(adapter); | |
5eae00c5 | 1762 | watchdog_done: |
4870e176 MW |
1763 | if (adapter->state == __I40EVF_RUNNING) { |
1764 | i40evf_irq_enable_queues(adapter, ~0); | |
1765 | i40evf_fire_sw_int(adapter, 0xFF); | |
1766 | } else { | |
1767 | i40evf_fire_sw_int(adapter, 0x1); | |
1768 | } | |
1769 | ||
ef8693eb MW |
1770 | clear_bit(__I40EVF_IN_CRITICAL_TASK, &adapter->crit_section); |
1771 | restart_watchdog: | |
d3e2edb7 AS |
1772 | if (adapter->state == __I40EVF_REMOVE) |
1773 | return; | |
5eae00c5 GR |
1774 | if (adapter->aq_required) |
1775 | mod_timer(&adapter->watchdog_timer, | |
1776 | jiffies + msecs_to_jiffies(20)); | |
1777 | else | |
1778 | mod_timer(&adapter->watchdog_timer, jiffies + (HZ * 2)); | |
5eae00c5 GR |
1779 | schedule_work(&adapter->adminq_task); |
1780 | } | |
1781 | ||
67c818a1 MW |
1782 | #define I40EVF_RESET_WAIT_MS 10 |
1783 | #define I40EVF_RESET_WAIT_COUNT 500 | |
5eae00c5 GR |
1784 | /** |
1785 | * i40evf_reset_task - Call-back task to handle hardware reset | |
1786 | * @work: pointer to work_struct | |
1787 | * | |
1788 | * During reset we need to shut down and reinitialize the admin queue | |
1789 | * before we can use it to communicate with the PF again. We also clear | |
1790 | * and reinit the rings because that context is lost as well. | |
1791 | **/ | |
1792 | static void i40evf_reset_task(struct work_struct *work) | |
1793 | { | |
ef8693eb MW |
1794 | struct i40evf_adapter *adapter = container_of(work, |
1795 | struct i40evf_adapter, | |
1796 | reset_task); | |
ac833bbf | 1797 | struct net_device *netdev = adapter->netdev; |
5eae00c5 | 1798 | struct i40e_hw *hw = &adapter->hw; |
40d01366 | 1799 | struct i40evf_vlan_filter *vlf; |
ac833bbf | 1800 | struct i40evf_mac_filter *f; |
ee5c1e92 | 1801 | u32 reg_val; |
ac833bbf | 1802 | int i = 0, err; |
5eae00c5 GR |
1803 | |
1804 | while (test_and_set_bit(__I40EVF_IN_CRITICAL_TASK, | |
1805 | &adapter->crit_section)) | |
f98a2006 | 1806 | usleep_range(500, 1000); |
3526d800 | 1807 | |
67c818a1 | 1808 | i40evf_misc_irq_disable(adapter); |
3526d800 | 1809 | if (adapter->flags & I40EVF_FLAG_RESET_NEEDED) { |
67c818a1 MW |
1810 | adapter->flags &= ~I40EVF_FLAG_RESET_NEEDED; |
1811 | /* Restart the AQ here. If we have been reset but didn't | |
1812 | * detect it, or if the PF had to reinit, our AQ will be hosed. | |
1813 | */ | |
1814 | i40evf_shutdown_adminq(hw); | |
1815 | i40evf_init_adminq(hw); | |
3526d800 MW |
1816 | i40evf_request_reset(adapter); |
1817 | } | |
67c818a1 | 1818 | adapter->flags |= I40EVF_FLAG_RESET_PENDING; |
3526d800 | 1819 | |
ef8693eb MW |
1820 | /* poll until we see the reset actually happen */ |
1821 | for (i = 0; i < I40EVF_RESET_WAIT_COUNT; i++) { | |
ee5c1e92 MW |
1822 | reg_val = rd32(hw, I40E_VF_ARQLEN1) & |
1823 | I40E_VF_ARQLEN1_ARQENABLE_MASK; | |
1824 | if (!reg_val) | |
ef8693eb | 1825 | break; |
ee5c1e92 | 1826 | usleep_range(5000, 10000); |
ef8693eb MW |
1827 | } |
1828 | if (i == I40EVF_RESET_WAIT_COUNT) { | |
67c818a1 | 1829 | dev_info(&adapter->pdev->dev, "Never saw reset\n"); |
ef8693eb MW |
1830 | goto continue_reset; /* act like the reset happened */ |
1831 | } | |
5eae00c5 | 1832 | |
ef8693eb MW |
1833 | /* wait until the reset is complete and the PF is responding to us */ |
1834 | for (i = 0; i < I40EVF_RESET_WAIT_COUNT; i++) { | |
ee5c1e92 MW |
1835 | reg_val = rd32(hw, I40E_VFGEN_RSTAT) & |
1836 | I40E_VFGEN_RSTAT_VFR_STATE_MASK; | |
1837 | if (reg_val == I40E_VFR_VFACTIVE) | |
5eae00c5 | 1838 | break; |
c88e38cc | 1839 | msleep(I40EVF_RESET_WAIT_MS); |
5eae00c5 | 1840 | } |
509a447a | 1841 | pci_set_master(adapter->pdev); |
67c818a1 MW |
1842 | /* extra wait to make sure minimum wait is met */ |
1843 | msleep(I40EVF_RESET_WAIT_MS); | |
ef8693eb | 1844 | if (i == I40EVF_RESET_WAIT_COUNT) { |
874d1a10 | 1845 | struct i40evf_mac_filter *ftmp; |
6ba36a24 MW |
1846 | struct i40evf_vlan_filter *fv, *fvtmp; |
1847 | ||
5eae00c5 | 1848 | /* reset never finished */ |
80e72893 | 1849 | dev_err(&adapter->pdev->dev, "Reset never finished (%x)\n", |
ee5c1e92 | 1850 | reg_val); |
ef8693eb MW |
1851 | adapter->flags |= I40EVF_FLAG_PF_COMMS_FAILED; |
1852 | ||
169f4076 MW |
1853 | if (netif_running(adapter->netdev)) { |
1854 | set_bit(__I40E_DOWN, &adapter->vsi.state); | |
ac833bbf | 1855 | netif_carrier_off(netdev); |
67c818a1 MW |
1856 | netif_tx_disable(netdev); |
1857 | i40evf_napi_disable_all(adapter); | |
1858 | i40evf_irq_disable(adapter); | |
169f4076 MW |
1859 | i40evf_free_traffic_irqs(adapter); |
1860 | i40evf_free_all_tx_resources(adapter); | |
1861 | i40evf_free_all_rx_resources(adapter); | |
1862 | } | |
6ba36a24 MW |
1863 | |
1864 | /* Delete all of the filters, both MAC and VLAN. */ | |
1865 | list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list, | |
1866 | list) { | |
1867 | list_del(&f->list); | |
1868 | kfree(f); | |
1869 | } | |
67c818a1 | 1870 | |
6ba36a24 MW |
1871 | list_for_each_entry_safe(fv, fvtmp, &adapter->vlan_filter_list, |
1872 | list) { | |
1873 | list_del(&fv->list); | |
1874 | kfree(fv); | |
1875 | } | |
1876 | ||
ef8693eb MW |
1877 | i40evf_free_misc_irq(adapter); |
1878 | i40evf_reset_interrupt_capability(adapter); | |
1879 | i40evf_free_queues(adapter); | |
d31944d6 | 1880 | i40evf_free_q_vectors(adapter); |
ef8693eb MW |
1881 | kfree(adapter->vf_res); |
1882 | i40evf_shutdown_adminq(hw); | |
1883 | adapter->netdev->flags &= ~IFF_UP; | |
1884 | clear_bit(__I40EVF_IN_CRITICAL_TASK, &adapter->crit_section); | |
67c818a1 | 1885 | adapter->flags &= ~I40EVF_FLAG_RESET_PENDING; |
9b9344f7 | 1886 | adapter->state = __I40EVF_DOWN; |
67c818a1 | 1887 | dev_info(&adapter->pdev->dev, "Reset task did not complete, VF disabled\n"); |
ef8693eb | 1888 | return; /* Do not attempt to reinit. It's dead, Jim. */ |
5eae00c5 | 1889 | } |
ef8693eb MW |
1890 | |
1891 | continue_reset: | |
3c8e0b98 | 1892 | if (netif_running(adapter->netdev)) { |
3c8e0b98 | 1893 | netif_carrier_off(netdev); |
67c818a1 MW |
1894 | netif_tx_stop_all_queues(netdev); |
1895 | i40evf_napi_disable_all(adapter); | |
3c8e0b98 | 1896 | } |
67c818a1 | 1897 | i40evf_irq_disable(adapter); |
ac833bbf | 1898 | |
5eae00c5 | 1899 | adapter->state = __I40EVF_RESETTING; |
67c818a1 MW |
1900 | adapter->flags &= ~I40EVF_FLAG_RESET_PENDING; |
1901 | ||
1902 | /* free the Tx/Rx rings and descriptors, might be better to just | |
1903 | * re-use them sometime in the future | |
1904 | */ | |
1905 | i40evf_free_all_rx_resources(adapter); | |
1906 | i40evf_free_all_tx_resources(adapter); | |
5eae00c5 GR |
1907 | |
1908 | /* kill and reinit the admin queue */ | |
1909 | if (i40evf_shutdown_adminq(hw)) | |
ac833bbf MW |
1910 | dev_warn(&adapter->pdev->dev, "Failed to shut down adminq\n"); |
1911 | adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN; | |
5eae00c5 GR |
1912 | err = i40evf_init_adminq(hw); |
1913 | if (err) | |
ac833bbf MW |
1914 | dev_info(&adapter->pdev->dev, "Failed to init adminq: %d\n", |
1915 | err); | |
5eae00c5 | 1916 | |
e6d038de MW |
1917 | adapter->aq_required = I40EVF_FLAG_AQ_GET_CONFIG; |
1918 | adapter->aq_required |= I40EVF_FLAG_AQ_MAP_VECTORS; | |
ac833bbf MW |
1919 | |
1920 | /* re-add all MAC filters */ | |
1921 | list_for_each_entry(f, &adapter->mac_filter_list, list) { | |
1922 | f->add = true; | |
1923 | } | |
1924 | /* re-add all VLAN filters */ | |
40d01366 MW |
1925 | list_for_each_entry(vlf, &adapter->vlan_filter_list, list) { |
1926 | vlf->add = true; | |
ac833bbf | 1927 | } |
e6d038de | 1928 | adapter->aq_required |= I40EVF_FLAG_AQ_ADD_MAC_FILTER; |
ac833bbf | 1929 | adapter->aq_required |= I40EVF_FLAG_AQ_ADD_VLAN_FILTER; |
5eae00c5 | 1930 | clear_bit(__I40EVF_IN_CRITICAL_TASK, &adapter->crit_section); |
67c818a1 | 1931 | i40evf_misc_irq_enable(adapter); |
5eae00c5 GR |
1932 | |
1933 | mod_timer(&adapter->watchdog_timer, jiffies + 2); | |
1934 | ||
1935 | if (netif_running(adapter->netdev)) { | |
1936 | /* allocate transmit descriptors */ | |
1937 | err = i40evf_setup_all_tx_resources(adapter); | |
1938 | if (err) | |
1939 | goto reset_err; | |
1940 | ||
1941 | /* allocate receive descriptors */ | |
1942 | err = i40evf_setup_all_rx_resources(adapter); | |
1943 | if (err) | |
1944 | goto reset_err; | |
1945 | ||
1946 | i40evf_configure(adapter); | |
1947 | ||
1948 | err = i40evf_up_complete(adapter); | |
1949 | if (err) | |
1950 | goto reset_err; | |
1951 | ||
1952 | i40evf_irq_enable(adapter, true); | |
67c818a1 MW |
1953 | } else { |
1954 | adapter->state = __I40EVF_DOWN; | |
5eae00c5 | 1955 | } |
67c818a1 | 1956 | |
5eae00c5 GR |
1957 | return; |
1958 | reset_err: | |
80e72893 | 1959 | dev_err(&adapter->pdev->dev, "failed to allocate resources during reinit\n"); |
5eae00c5 GR |
1960 | i40evf_close(adapter->netdev); |
1961 | } | |
1962 | ||
1963 | /** | |
1964 | * i40evf_adminq_task - worker thread to clean the admin queue | |
1965 | * @work: pointer to work_struct containing our data | |
1966 | **/ | |
1967 | static void i40evf_adminq_task(struct work_struct *work) | |
1968 | { | |
1969 | struct i40evf_adapter *adapter = | |
1970 | container_of(work, struct i40evf_adapter, adminq_task); | |
1971 | struct i40e_hw *hw = &adapter->hw; | |
1972 | struct i40e_arq_event_info event; | |
1973 | struct i40e_virtchnl_msg *v_msg; | |
1974 | i40e_status ret; | |
912257e5 | 1975 | u32 val, oldval; |
5eae00c5 GR |
1976 | u16 pending; |
1977 | ||
ef8693eb | 1978 | if (adapter->flags & I40EVF_FLAG_PF_COMMS_FAILED) |
7235448c | 1979 | goto out; |
ef8693eb | 1980 | |
1001dc37 MW |
1981 | event.buf_len = I40EVF_MAX_AQ_BUF_SIZE; |
1982 | event.msg_buf = kzalloc(event.buf_len, GFP_KERNEL); | |
249c8b8d | 1983 | if (!event.msg_buf) |
7235448c | 1984 | goto out; |
249c8b8d | 1985 | |
5eae00c5 GR |
1986 | v_msg = (struct i40e_virtchnl_msg *)&event.desc; |
1987 | do { | |
1988 | ret = i40evf_clean_arq_element(hw, &event, &pending); | |
8b011ebb | 1989 | if (ret || !v_msg->v_opcode) |
5eae00c5 GR |
1990 | break; /* No event to process or error cleaning ARQ */ |
1991 | ||
1992 | i40evf_virtchnl_completion(adapter, v_msg->v_opcode, | |
1993 | v_msg->v_retval, event.msg_buf, | |
1001dc37 | 1994 | event.msg_len); |
75a64435 | 1995 | if (pending != 0) |
5eae00c5 | 1996 | memset(event.msg_buf, 0, I40EVF_MAX_AQ_BUF_SIZE); |
5eae00c5 GR |
1997 | } while (pending); |
1998 | ||
67c818a1 MW |
1999 | if ((adapter->flags & |
2000 | (I40EVF_FLAG_RESET_PENDING | I40EVF_FLAG_RESET_NEEDED)) || | |
2001 | adapter->state == __I40EVF_RESETTING) | |
2002 | goto freedom; | |
2003 | ||
912257e5 MW |
2004 | /* check for error indications */ |
2005 | val = rd32(hw, hw->aq.arq.len); | |
2006 | oldval = val; | |
b1f3366b | 2007 | if (val & I40E_VF_ARQLEN1_ARQVFE_MASK) { |
912257e5 | 2008 | dev_info(&adapter->pdev->dev, "ARQ VF Error detected\n"); |
b1f3366b | 2009 | val &= ~I40E_VF_ARQLEN1_ARQVFE_MASK; |
912257e5 | 2010 | } |
b1f3366b | 2011 | if (val & I40E_VF_ARQLEN1_ARQOVFL_MASK) { |
912257e5 | 2012 | dev_info(&adapter->pdev->dev, "ARQ Overflow Error detected\n"); |
b1f3366b | 2013 | val &= ~I40E_VF_ARQLEN1_ARQOVFL_MASK; |
912257e5 | 2014 | } |
b1f3366b | 2015 | if (val & I40E_VF_ARQLEN1_ARQCRIT_MASK) { |
912257e5 | 2016 | dev_info(&adapter->pdev->dev, "ARQ Critical Error detected\n"); |
b1f3366b | 2017 | val &= ~I40E_VF_ARQLEN1_ARQCRIT_MASK; |
912257e5 MW |
2018 | } |
2019 | if (oldval != val) | |
2020 | wr32(hw, hw->aq.arq.len, val); | |
2021 | ||
2022 | val = rd32(hw, hw->aq.asq.len); | |
2023 | oldval = val; | |
b1f3366b | 2024 | if (val & I40E_VF_ATQLEN1_ATQVFE_MASK) { |
912257e5 | 2025 | dev_info(&adapter->pdev->dev, "ASQ VF Error detected\n"); |
b1f3366b | 2026 | val &= ~I40E_VF_ATQLEN1_ATQVFE_MASK; |
912257e5 | 2027 | } |
b1f3366b | 2028 | if (val & I40E_VF_ATQLEN1_ATQOVFL_MASK) { |
912257e5 | 2029 | dev_info(&adapter->pdev->dev, "ASQ Overflow Error detected\n"); |
b1f3366b | 2030 | val &= ~I40E_VF_ATQLEN1_ATQOVFL_MASK; |
912257e5 | 2031 | } |
b1f3366b | 2032 | if (val & I40E_VF_ATQLEN1_ATQCRIT_MASK) { |
912257e5 | 2033 | dev_info(&adapter->pdev->dev, "ASQ Critical Error detected\n"); |
b1f3366b | 2034 | val &= ~I40E_VF_ATQLEN1_ATQCRIT_MASK; |
912257e5 MW |
2035 | } |
2036 | if (oldval != val) | |
2037 | wr32(hw, hw->aq.asq.len, val); | |
2038 | ||
67c818a1 | 2039 | freedom: |
7235448c MW |
2040 | kfree(event.msg_buf); |
2041 | out: | |
5eae00c5 GR |
2042 | /* re-enable Admin queue interrupt cause */ |
2043 | i40evf_misc_irq_enable(adapter); | |
5eae00c5 GR |
2044 | } |
2045 | ||
2046 | /** | |
2047 | * i40evf_free_all_tx_resources - Free Tx Resources for All Queues | |
2048 | * @adapter: board private structure | |
2049 | * | |
2050 | * Free all transmit software resources | |
2051 | **/ | |
e284fc88 | 2052 | void i40evf_free_all_tx_resources(struct i40evf_adapter *adapter) |
5eae00c5 GR |
2053 | { |
2054 | int i; | |
2055 | ||
fdb47ae8 MW |
2056 | if (!adapter->tx_rings) |
2057 | return; | |
2058 | ||
cc052927 | 2059 | for (i = 0; i < adapter->num_active_queues; i++) |
0dd438d8 MW |
2060 | if (adapter->tx_rings[i].desc) |
2061 | i40evf_free_tx_resources(&adapter->tx_rings[i]); | |
5eae00c5 GR |
2062 | } |
2063 | ||
2064 | /** | |
2065 | * i40evf_setup_all_tx_resources - allocate all queues Tx resources | |
2066 | * @adapter: board private structure | |
2067 | * | |
2068 | * If this function returns with an error, then it's possible one or | |
2069 | * more of the rings is populated (while the rest are not). It is the | |
2070 | * callers duty to clean those orphaned rings. | |
2071 | * | |
2072 | * Return 0 on success, negative on failure | |
2073 | **/ | |
2074 | static int i40evf_setup_all_tx_resources(struct i40evf_adapter *adapter) | |
2075 | { | |
2076 | int i, err = 0; | |
2077 | ||
cc052927 | 2078 | for (i = 0; i < adapter->num_active_queues; i++) { |
0dd438d8 MW |
2079 | adapter->tx_rings[i].count = adapter->tx_desc_count; |
2080 | err = i40evf_setup_tx_descriptors(&adapter->tx_rings[i]); | |
5eae00c5 GR |
2081 | if (!err) |
2082 | continue; | |
2083 | dev_err(&adapter->pdev->dev, | |
fb43201f | 2084 | "Allocation for Tx Queue %u failed\n", i); |
5eae00c5 GR |
2085 | break; |
2086 | } | |
2087 | ||
2088 | return err; | |
2089 | } | |
2090 | ||
2091 | /** | |
2092 | * i40evf_setup_all_rx_resources - allocate all queues Rx resources | |
2093 | * @adapter: board private structure | |
2094 | * | |
2095 | * If this function returns with an error, then it's possible one or | |
2096 | * more of the rings is populated (while the rest are not). It is the | |
2097 | * callers duty to clean those orphaned rings. | |
2098 | * | |
2099 | * Return 0 on success, negative on failure | |
2100 | **/ | |
2101 | static int i40evf_setup_all_rx_resources(struct i40evf_adapter *adapter) | |
2102 | { | |
2103 | int i, err = 0; | |
2104 | ||
cc052927 | 2105 | for (i = 0; i < adapter->num_active_queues; i++) { |
0dd438d8 MW |
2106 | adapter->rx_rings[i].count = adapter->rx_desc_count; |
2107 | err = i40evf_setup_rx_descriptors(&adapter->rx_rings[i]); | |
5eae00c5 GR |
2108 | if (!err) |
2109 | continue; | |
2110 | dev_err(&adapter->pdev->dev, | |
fb43201f | 2111 | "Allocation for Rx Queue %u failed\n", i); |
5eae00c5 GR |
2112 | break; |
2113 | } | |
2114 | return err; | |
2115 | } | |
2116 | ||
2117 | /** | |
2118 | * i40evf_free_all_rx_resources - Free Rx Resources for All Queues | |
2119 | * @adapter: board private structure | |
2120 | * | |
2121 | * Free all receive software resources | |
2122 | **/ | |
e284fc88 | 2123 | void i40evf_free_all_rx_resources(struct i40evf_adapter *adapter) |
5eae00c5 GR |
2124 | { |
2125 | int i; | |
2126 | ||
fdb47ae8 MW |
2127 | if (!adapter->rx_rings) |
2128 | return; | |
2129 | ||
cc052927 | 2130 | for (i = 0; i < adapter->num_active_queues; i++) |
0dd438d8 MW |
2131 | if (adapter->rx_rings[i].desc) |
2132 | i40evf_free_rx_resources(&adapter->rx_rings[i]); | |
5eae00c5 GR |
2133 | } |
2134 | ||
2135 | /** | |
2136 | * i40evf_open - Called when a network interface is made active | |
2137 | * @netdev: network interface device structure | |
2138 | * | |
2139 | * Returns 0 on success, negative value on failure | |
2140 | * | |
2141 | * The open entry point is called when a network interface is made | |
2142 | * active by the system (IFF_UP). At this point all resources needed | |
2143 | * for transmit and receive operations are allocated, the interrupt | |
2144 | * handler is registered with the OS, the watchdog timer is started, | |
2145 | * and the stack is notified that the interface is ready. | |
2146 | **/ | |
2147 | static int i40evf_open(struct net_device *netdev) | |
2148 | { | |
2149 | struct i40evf_adapter *adapter = netdev_priv(netdev); | |
2150 | int err; | |
2151 | ||
ef8693eb MW |
2152 | if (adapter->flags & I40EVF_FLAG_PF_COMMS_FAILED) { |
2153 | dev_err(&adapter->pdev->dev, "Unable to open device due to PF driver failure.\n"); | |
2154 | return -EIO; | |
2155 | } | |
209dc4da MW |
2156 | |
2157 | if (adapter->state != __I40EVF_DOWN) | |
5eae00c5 GR |
2158 | return -EBUSY; |
2159 | ||
2160 | /* allocate transmit descriptors */ | |
2161 | err = i40evf_setup_all_tx_resources(adapter); | |
2162 | if (err) | |
2163 | goto err_setup_tx; | |
2164 | ||
2165 | /* allocate receive descriptors */ | |
2166 | err = i40evf_setup_all_rx_resources(adapter); | |
2167 | if (err) | |
2168 | goto err_setup_rx; | |
2169 | ||
2170 | /* clear any pending interrupts, may auto mask */ | |
2171 | err = i40evf_request_traffic_irqs(adapter, netdev->name); | |
2172 | if (err) | |
2173 | goto err_req_irq; | |
2174 | ||
44151cd3 | 2175 | i40evf_add_filter(adapter, adapter->hw.mac.addr); |
5eae00c5 GR |
2176 | i40evf_configure(adapter); |
2177 | ||
2178 | err = i40evf_up_complete(adapter); | |
2179 | if (err) | |
2180 | goto err_req_irq; | |
2181 | ||
2182 | i40evf_irq_enable(adapter, true); | |
2183 | ||
2184 | return 0; | |
2185 | ||
2186 | err_req_irq: | |
2187 | i40evf_down(adapter); | |
2188 | i40evf_free_traffic_irqs(adapter); | |
2189 | err_setup_rx: | |
2190 | i40evf_free_all_rx_resources(adapter); | |
2191 | err_setup_tx: | |
2192 | i40evf_free_all_tx_resources(adapter); | |
2193 | ||
2194 | return err; | |
2195 | } | |
2196 | ||
2197 | /** | |
2198 | * i40evf_close - Disables a network interface | |
2199 | * @netdev: network interface device structure | |
2200 | * | |
2201 | * Returns 0, this is not allowed to fail | |
2202 | * | |
2203 | * The close entry point is called when an interface is de-activated | |
2204 | * by the OS. The hardware is still under the drivers control, but | |
2205 | * needs to be disabled. All IRQs except vector 0 (reserved for admin queue) | |
2206 | * are freed, along with all transmit and receive resources. | |
2207 | **/ | |
2208 | static int i40evf_close(struct net_device *netdev) | |
2209 | { | |
2210 | struct i40evf_adapter *adapter = netdev_priv(netdev); | |
2211 | ||
209dc4da | 2212 | if (adapter->state <= __I40EVF_DOWN_PENDING) |
ef8693eb MW |
2213 | return 0; |
2214 | ||
ef8693eb | 2215 | |
5eae00c5 GR |
2216 | set_bit(__I40E_DOWN, &adapter->vsi.state); |
2217 | ||
2218 | i40evf_down(adapter); | |
209dc4da | 2219 | adapter->state = __I40EVF_DOWN_PENDING; |
5eae00c5 GR |
2220 | i40evf_free_traffic_irqs(adapter); |
2221 | ||
5eae00c5 GR |
2222 | return 0; |
2223 | } | |
2224 | ||
2225 | /** | |
2226 | * i40evf_get_stats - Get System Network Statistics | |
2227 | * @netdev: network interface device structure | |
2228 | * | |
2229 | * Returns the address of the device statistics structure. | |
2230 | * The statistics are actually updated from the timer callback. | |
2231 | **/ | |
2232 | static struct net_device_stats *i40evf_get_stats(struct net_device *netdev) | |
2233 | { | |
2234 | struct i40evf_adapter *adapter = netdev_priv(netdev); | |
2235 | ||
2236 | /* only return the current stats */ | |
2237 | return &adapter->net_stats; | |
2238 | } | |
2239 | ||
5eae00c5 GR |
2240 | /** |
2241 | * i40evf_change_mtu - Change the Maximum Transfer Unit | |
2242 | * @netdev: network interface device structure | |
2243 | * @new_mtu: new value for maximum frame size | |
2244 | * | |
2245 | * Returns 0 on success, negative on failure | |
2246 | **/ | |
2247 | static int i40evf_change_mtu(struct net_device *netdev, int new_mtu) | |
2248 | { | |
2249 | struct i40evf_adapter *adapter = netdev_priv(netdev); | |
2250 | int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN; | |
2251 | ||
2252 | if ((new_mtu < 68) || (max_frame > I40E_MAX_RXBUFFER)) | |
2253 | return -EINVAL; | |
2254 | ||
5eae00c5 | 2255 | netdev->mtu = new_mtu; |
67c818a1 MW |
2256 | adapter->flags |= I40EVF_FLAG_RESET_NEEDED; |
2257 | schedule_work(&adapter->reset_task); | |
2258 | ||
5eae00c5 GR |
2259 | return 0; |
2260 | } | |
2261 | ||
2262 | static const struct net_device_ops i40evf_netdev_ops = { | |
2263 | .ndo_open = i40evf_open, | |
2264 | .ndo_stop = i40evf_close, | |
2265 | .ndo_start_xmit = i40evf_xmit_frame, | |
2266 | .ndo_get_stats = i40evf_get_stats, | |
2267 | .ndo_set_rx_mode = i40evf_set_rx_mode, | |
2268 | .ndo_validate_addr = eth_validate_addr, | |
2269 | .ndo_set_mac_address = i40evf_set_mac, | |
2270 | .ndo_change_mtu = i40evf_change_mtu, | |
2271 | .ndo_tx_timeout = i40evf_tx_timeout, | |
2272 | .ndo_vlan_rx_add_vid = i40evf_vlan_rx_add_vid, | |
2273 | .ndo_vlan_rx_kill_vid = i40evf_vlan_rx_kill_vid, | |
7709b4c1 AD |
2274 | #ifdef CONFIG_NET_POLL_CONTROLLER |
2275 | .ndo_poll_controller = i40evf_netpoll, | |
2276 | #endif | |
5eae00c5 GR |
2277 | }; |
2278 | ||
2279 | /** | |
2280 | * i40evf_check_reset_complete - check that VF reset is complete | |
2281 | * @hw: pointer to hw struct | |
2282 | * | |
2283 | * Returns 0 if device is ready to use, or -EBUSY if it's in reset. | |
2284 | **/ | |
2285 | static int i40evf_check_reset_complete(struct i40e_hw *hw) | |
2286 | { | |
2287 | u32 rstat; | |
2288 | int i; | |
2289 | ||
2290 | for (i = 0; i < 100; i++) { | |
fd35886a AS |
2291 | rstat = rd32(hw, I40E_VFGEN_RSTAT) & |
2292 | I40E_VFGEN_RSTAT_VFR_STATE_MASK; | |
2293 | if ((rstat == I40E_VFR_VFACTIVE) || | |
2294 | (rstat == I40E_VFR_COMPLETED)) | |
5eae00c5 | 2295 | return 0; |
f98a2006 | 2296 | usleep_range(10, 20); |
5eae00c5 GR |
2297 | } |
2298 | return -EBUSY; | |
2299 | } | |
2300 | ||
e6d038de MW |
2301 | /** |
2302 | * i40evf_process_config - Process the config information we got from the PF | |
2303 | * @adapter: board private structure | |
2304 | * | |
2305 | * Verify that we have a valid config struct, and set up our netdev features | |
2306 | * and our VSI struct. | |
2307 | **/ | |
2308 | int i40evf_process_config(struct i40evf_adapter *adapter) | |
2309 | { | |
2310 | struct net_device *netdev = adapter->netdev; | |
2311 | int i; | |
2312 | ||
2313 | /* got VF config message back from PF, now we can parse it */ | |
2314 | for (i = 0; i < adapter->vf_res->num_vsis; i++) { | |
2315 | if (adapter->vf_res->vsi_res[i].vsi_type == I40E_VSI_SRIOV) | |
2316 | adapter->vsi_res = &adapter->vf_res->vsi_res[i]; | |
2317 | } | |
2318 | if (!adapter->vsi_res) { | |
2319 | dev_err(&adapter->pdev->dev, "No LAN VSI found\n"); | |
2320 | return -ENODEV; | |
2321 | } | |
2322 | ||
2323 | if (adapter->vf_res->vf_offload_flags | |
2324 | & I40E_VIRTCHNL_VF_OFFLOAD_VLAN) { | |
cc7e406c MW |
2325 | netdev->vlan_features = netdev->features & |
2326 | ~(NETIF_F_HW_VLAN_CTAG_TX | | |
2327 | NETIF_F_HW_VLAN_CTAG_RX | | |
2328 | NETIF_F_HW_VLAN_CTAG_FILTER); | |
e6d038de MW |
2329 | netdev->features |= NETIF_F_HW_VLAN_CTAG_TX | |
2330 | NETIF_F_HW_VLAN_CTAG_RX | | |
2331 | NETIF_F_HW_VLAN_CTAG_FILTER; | |
2332 | } | |
2333 | netdev->features |= NETIF_F_HIGHDMA | | |
2334 | NETIF_F_SG | | |
2335 | NETIF_F_IP_CSUM | | |
53692b1d | 2336 | NETIF_F_SCTP_CRC | |
e6d038de MW |
2337 | NETIF_F_IPV6_CSUM | |
2338 | NETIF_F_TSO | | |
2339 | NETIF_F_TSO6 | | |
f608e6a6 AD |
2340 | NETIF_F_TSO_ECN | |
2341 | NETIF_F_GSO_GRE | | |
2342 | NETIF_F_GSO_UDP_TUNNEL | | |
e6d038de MW |
2343 | NETIF_F_RXCSUM | |
2344 | NETIF_F_GRO; | |
2345 | ||
f608e6a6 AD |
2346 | netdev->hw_enc_features |= NETIF_F_IP_CSUM | |
2347 | NETIF_F_IPV6_CSUM | | |
2348 | NETIF_F_TSO | | |
2349 | NETIF_F_TSO6 | | |
2350 | NETIF_F_TSO_ECN | | |
2351 | NETIF_F_GSO_GRE | | |
2352 | NETIF_F_GSO_UDP_TUNNEL | | |
2353 | NETIF_F_GSO_UDP_TUNNEL_CSUM; | |
2354 | ||
2355 | if (adapter->flags & I40EVF_FLAG_OUTER_UDP_CSUM_CAPABLE) | |
2356 | netdev->features |= NETIF_F_GSO_UDP_TUNNEL_CSUM; | |
2357 | ||
e6d038de MW |
2358 | /* copy netdev features into list of user selectable features */ |
2359 | netdev->hw_features |= netdev->features; | |
2360 | netdev->hw_features &= ~NETIF_F_RXCSUM; | |
2361 | ||
2362 | adapter->vsi.id = adapter->vsi_res->vsi_id; | |
2363 | ||
2364 | adapter->vsi.back = adapter; | |
2365 | adapter->vsi.base_vector = 1; | |
2366 | adapter->vsi.work_limit = I40E_DEFAULT_IRQ_WORK; | |
2367 | adapter->vsi.rx_itr_setting = (I40E_ITR_DYNAMIC | | |
2368 | ITR_REG_TO_USEC(I40E_ITR_RX_DEF)); | |
2369 | adapter->vsi.tx_itr_setting = (I40E_ITR_DYNAMIC | | |
2370 | ITR_REG_TO_USEC(I40E_ITR_TX_DEF)); | |
2371 | adapter->vsi.netdev = adapter->netdev; | |
f578f5f4 | 2372 | adapter->vsi.qs_handle = adapter->vsi_res->qset_handle; |
e6d038de MW |
2373 | return 0; |
2374 | } | |
2375 | ||
5eae00c5 GR |
2376 | /** |
2377 | * i40evf_init_task - worker thread to perform delayed initialization | |
2378 | * @work: pointer to work_struct containing our data | |
2379 | * | |
2380 | * This task completes the work that was begun in probe. Due to the nature | |
2381 | * of VF-PF communications, we may need to wait tens of milliseconds to get | |
dbedd44e | 2382 | * responses back from the PF. Rather than busy-wait in probe and bog down the |
5eae00c5 GR |
2383 | * whole system, we'll do it in a task so we can sleep. |
2384 | * This task only runs during driver init. Once we've established | |
2385 | * communications with the PF driver and set up our netdev, the watchdog | |
2386 | * takes over. | |
2387 | **/ | |
2388 | static void i40evf_init_task(struct work_struct *work) | |
2389 | { | |
2390 | struct i40evf_adapter *adapter = container_of(work, | |
2391 | struct i40evf_adapter, | |
2392 | init_task.work); | |
2393 | struct net_device *netdev = adapter->netdev; | |
5eae00c5 GR |
2394 | struct i40e_hw *hw = &adapter->hw; |
2395 | struct pci_dev *pdev = adapter->pdev; | |
e6d038de | 2396 | int err, bufsz; |
5eae00c5 GR |
2397 | |
2398 | switch (adapter->state) { | |
2399 | case __I40EVF_STARTUP: | |
2400 | /* driver loaded, probe complete */ | |
ef8693eb MW |
2401 | adapter->flags &= ~I40EVF_FLAG_PF_COMMS_FAILED; |
2402 | adapter->flags &= ~I40EVF_FLAG_RESET_PENDING; | |
5eae00c5 GR |
2403 | err = i40e_set_mac_type(hw); |
2404 | if (err) { | |
c2a137cb MW |
2405 | dev_err(&pdev->dev, "Failed to set MAC type (%d)\n", |
2406 | err); | |
2619ef47 | 2407 | goto err; |
5eae00c5 GR |
2408 | } |
2409 | err = i40evf_check_reset_complete(hw); | |
2410 | if (err) { | |
0d9c7ea8 | 2411 | dev_info(&pdev->dev, "Device is still in reset (%d), retrying\n", |
75a64435 | 2412 | err); |
5eae00c5 GR |
2413 | goto err; |
2414 | } | |
2415 | hw->aq.num_arq_entries = I40EVF_AQ_LEN; | |
2416 | hw->aq.num_asq_entries = I40EVF_AQ_LEN; | |
2417 | hw->aq.arq_buf_size = I40EVF_MAX_AQ_BUF_SIZE; | |
2418 | hw->aq.asq_buf_size = I40EVF_MAX_AQ_BUF_SIZE; | |
2419 | ||
2420 | err = i40evf_init_adminq(hw); | |
2421 | if (err) { | |
c2a137cb MW |
2422 | dev_err(&pdev->dev, "Failed to init Admin Queue (%d)\n", |
2423 | err); | |
5eae00c5 GR |
2424 | goto err; |
2425 | } | |
2426 | err = i40evf_send_api_ver(adapter); | |
2427 | if (err) { | |
10bdd67b | 2428 | dev_err(&pdev->dev, "Unable to send to PF (%d)\n", err); |
5eae00c5 GR |
2429 | i40evf_shutdown_adminq(hw); |
2430 | goto err; | |
2431 | } | |
2432 | adapter->state = __I40EVF_INIT_VERSION_CHECK; | |
2433 | goto restart; | |
5eae00c5 | 2434 | case __I40EVF_INIT_VERSION_CHECK: |
10bdd67b | 2435 | if (!i40evf_asq_done(hw)) { |
80e72893 | 2436 | dev_err(&pdev->dev, "Admin queue command never completed\n"); |
906a6937 MW |
2437 | i40evf_shutdown_adminq(hw); |
2438 | adapter->state = __I40EVF_STARTUP; | |
5eae00c5 | 2439 | goto err; |
10bdd67b | 2440 | } |
5eae00c5 GR |
2441 | |
2442 | /* aq msg sent, awaiting reply */ | |
2443 | err = i40evf_verify_api_ver(adapter); | |
2444 | if (err) { | |
d4f82fd3 | 2445 | if (err == I40E_ERR_ADMIN_QUEUE_NO_WORK) |
56f9920a | 2446 | err = i40evf_send_api_ver(adapter); |
ee1693e5 MW |
2447 | else |
2448 | dev_err(&pdev->dev, "Unsupported PF API version %d.%d, expected %d.%d\n", | |
2449 | adapter->pf_version.major, | |
2450 | adapter->pf_version.minor, | |
2451 | I40E_VIRTCHNL_VERSION_MAJOR, | |
2452 | I40E_VIRTCHNL_VERSION_MINOR); | |
5eae00c5 GR |
2453 | goto err; |
2454 | } | |
2455 | err = i40evf_send_vf_config_msg(adapter); | |
2456 | if (err) { | |
3f2ab172 | 2457 | dev_err(&pdev->dev, "Unable to send config request (%d)\n", |
5eae00c5 GR |
2458 | err); |
2459 | goto err; | |
2460 | } | |
2461 | adapter->state = __I40EVF_INIT_GET_RESOURCES; | |
2462 | goto restart; | |
5eae00c5 GR |
2463 | case __I40EVF_INIT_GET_RESOURCES: |
2464 | /* aq msg sent, awaiting reply */ | |
2465 | if (!adapter->vf_res) { | |
2466 | bufsz = sizeof(struct i40e_virtchnl_vf_resource) + | |
2467 | (I40E_MAX_VF_VSI * | |
2468 | sizeof(struct i40e_virtchnl_vsi_resource)); | |
2469 | adapter->vf_res = kzalloc(bufsz, GFP_KERNEL); | |
c2a137cb | 2470 | if (!adapter->vf_res) |
5eae00c5 | 2471 | goto err; |
5eae00c5 GR |
2472 | } |
2473 | err = i40evf_get_vf_config(adapter); | |
906a6937 | 2474 | if (err == I40E_ERR_ADMIN_QUEUE_NO_WORK) { |
906a6937 MW |
2475 | err = i40evf_send_vf_config_msg(adapter); |
2476 | goto err; | |
e743072f MW |
2477 | } else if (err == I40E_ERR_PARAM) { |
2478 | /* We only get ERR_PARAM if the device is in a very bad | |
2479 | * state or if we've been disabled for previous bad | |
2480 | * behavior. Either way, we're done now. | |
2481 | */ | |
2482 | i40evf_shutdown_adminq(hw); | |
2483 | dev_err(&pdev->dev, "Unable to get VF config due to PF error condition, not retrying\n"); | |
2484 | return; | |
906a6937 | 2485 | } |
5eae00c5 | 2486 | if (err) { |
c2a137cb MW |
2487 | dev_err(&pdev->dev, "Unable to get VF config (%d)\n", |
2488 | err); | |
5eae00c5 GR |
2489 | goto err_alloc; |
2490 | } | |
2491 | adapter->state = __I40EVF_INIT_SW; | |
2492 | break; | |
2493 | default: | |
2494 | goto err_alloc; | |
2495 | } | |
f608e6a6 AD |
2496 | |
2497 | if (hw->mac.type == I40E_MAC_X722_VF) | |
2498 | adapter->flags |= I40EVF_FLAG_OUTER_UDP_CSUM_CAPABLE; | |
2499 | ||
e6d038de | 2500 | if (i40evf_process_config(adapter)) |
5eae00c5 | 2501 | goto err_alloc; |
e6d038de | 2502 | adapter->current_op = I40E_VIRTCHNL_OP_UNKNOWN; |
5eae00c5 GR |
2503 | |
2504 | adapter->flags |= I40EVF_FLAG_RX_CSUM_ENABLED; | |
00e5ec4b MW |
2505 | adapter->flags |= I40EVF_FLAG_RX_1BUF_CAPABLE; |
2506 | adapter->flags |= I40EVF_FLAG_RX_PS_CAPABLE; | |
2507 | ||
2508 | /* Default to single buffer rx, can be changed through ethtool. */ | |
2509 | adapter->flags &= ~I40EVF_FLAG_RX_PS_ENABLED; | |
5eae00c5 | 2510 | |
5eae00c5 GR |
2511 | netdev->netdev_ops = &i40evf_netdev_ops; |
2512 | i40evf_set_ethtool_ops(netdev); | |
2513 | netdev->watchdog_timeo = 5 * HZ; | |
3415e8ce | 2514 | |
5eae00c5 | 2515 | if (!is_valid_ether_addr(adapter->hw.mac.addr)) { |
b34f90e7 | 2516 | dev_info(&pdev->dev, "Invalid MAC address %pM, using random\n", |
c2a137cb | 2517 | adapter->hw.mac.addr); |
14e52ee2 MW |
2518 | eth_hw_addr_random(netdev); |
2519 | ether_addr_copy(adapter->hw.mac.addr, netdev->dev_addr); | |
2520 | } else { | |
2521 | adapter->flags |= I40EVF_FLAG_ADDR_SET_BY_PF; | |
2522 | ether_addr_copy(netdev->dev_addr, adapter->hw.mac.addr); | |
2523 | ether_addr_copy(netdev->perm_addr, adapter->hw.mac.addr); | |
5eae00c5 | 2524 | } |
5eae00c5 | 2525 | |
5eae00c5 GR |
2526 | init_timer(&adapter->watchdog_timer); |
2527 | adapter->watchdog_timer.function = &i40evf_watchdog_timer; | |
2528 | adapter->watchdog_timer.data = (unsigned long)adapter; | |
2529 | mod_timer(&adapter->watchdog_timer, jiffies + 1); | |
2530 | ||
cc052927 MW |
2531 | adapter->num_active_queues = min_t(int, |
2532 | adapter->vsi_res->num_queue_pairs, | |
2533 | (int)(num_online_cpus())); | |
d732a184 MW |
2534 | adapter->tx_desc_count = I40EVF_DEFAULT_TXD; |
2535 | adapter->rx_desc_count = I40EVF_DEFAULT_RXD; | |
5eae00c5 GR |
2536 | err = i40evf_init_interrupt_scheme(adapter); |
2537 | if (err) | |
2538 | goto err_sw_init; | |
2539 | i40evf_map_rings_to_vectors(adapter); | |
f6d83d13 ASJ |
2540 | if (adapter->vf_res->vf_offload_flags & |
2541 | I40E_VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) | |
2542 | adapter->flags |= I40EVF_FLAG_WB_ON_ITR_CAPABLE; | |
2543 | ||
5eae00c5 GR |
2544 | err = i40evf_request_misc_irq(adapter); |
2545 | if (err) | |
2546 | goto err_sw_init; | |
2547 | ||
2548 | netif_carrier_off(netdev); | |
2549 | ||
ef8693eb MW |
2550 | if (!adapter->netdev_registered) { |
2551 | err = register_netdev(netdev); | |
2552 | if (err) | |
2553 | goto err_register; | |
2554 | } | |
5eae00c5 GR |
2555 | |
2556 | adapter->netdev_registered = true; | |
2557 | ||
2558 | netif_tx_stop_all_queues(netdev); | |
2559 | ||
b34f90e7 | 2560 | dev_info(&pdev->dev, "MAC address: %pM\n", adapter->hw.mac.addr); |
5eae00c5 GR |
2561 | if (netdev->features & NETIF_F_GRO) |
2562 | dev_info(&pdev->dev, "GRO is enabled\n"); | |
2563 | ||
5eae00c5 GR |
2564 | adapter->state = __I40EVF_DOWN; |
2565 | set_bit(__I40E_DOWN, &adapter->vsi.state); | |
2566 | i40evf_misc_irq_enable(adapter); | |
e25d00b8 ASJ |
2567 | |
2568 | if (RSS_AQ(adapter)) { | |
2569 | adapter->aq_required |= I40EVF_FLAG_AQ_CONFIGURE_RSS; | |
2570 | mod_timer_pending(&adapter->watchdog_timer, jiffies + 1); | |
2571 | } else { | |
96a81986 | 2572 | i40evf_init_rss(adapter); |
e25d00b8 | 2573 | } |
5eae00c5 GR |
2574 | return; |
2575 | restart: | |
3f7e5c33 | 2576 | schedule_delayed_work(&adapter->init_task, msecs_to_jiffies(30)); |
5eae00c5 GR |
2577 | return; |
2578 | ||
2579 | err_register: | |
2580 | i40evf_free_misc_irq(adapter); | |
2581 | err_sw_init: | |
2582 | i40evf_reset_interrupt_capability(adapter); | |
5eae00c5 GR |
2583 | err_alloc: |
2584 | kfree(adapter->vf_res); | |
2585 | adapter->vf_res = NULL; | |
2586 | err: | |
2587 | /* Things went into the weeds, so try again later */ | |
2588 | if (++adapter->aq_wait_count > I40EVF_AQ_MAX_ERR) { | |
b9029e94 | 2589 | dev_err(&pdev->dev, "Failed to communicate with PF; waiting before retry\n"); |
ef8693eb | 2590 | adapter->flags |= I40EVF_FLAG_PF_COMMS_FAILED; |
b9029e94 MW |
2591 | i40evf_shutdown_adminq(hw); |
2592 | adapter->state = __I40EVF_STARTUP; | |
2593 | schedule_delayed_work(&adapter->init_task, HZ * 5); | |
2594 | return; | |
5eae00c5 | 2595 | } |
3f7e5c33 | 2596 | schedule_delayed_work(&adapter->init_task, HZ); |
5eae00c5 GR |
2597 | } |
2598 | ||
2599 | /** | |
2600 | * i40evf_shutdown - Shutdown the device in preparation for a reboot | |
2601 | * @pdev: pci device structure | |
2602 | **/ | |
2603 | static void i40evf_shutdown(struct pci_dev *pdev) | |
2604 | { | |
2605 | struct net_device *netdev = pci_get_drvdata(pdev); | |
00293fdc | 2606 | struct i40evf_adapter *adapter = netdev_priv(netdev); |
5eae00c5 GR |
2607 | |
2608 | netif_device_detach(netdev); | |
2609 | ||
2610 | if (netif_running(netdev)) | |
2611 | i40evf_close(netdev); | |
2612 | ||
00293fdc MW |
2613 | /* Prevent the watchdog from running. */ |
2614 | adapter->state = __I40EVF_REMOVE; | |
2615 | adapter->aq_required = 0; | |
00293fdc | 2616 | |
5eae00c5 GR |
2617 | #ifdef CONFIG_PM |
2618 | pci_save_state(pdev); | |
2619 | ||
2620 | #endif | |
2621 | pci_disable_device(pdev); | |
2622 | } | |
2623 | ||
2624 | /** | |
2625 | * i40evf_probe - Device Initialization Routine | |
2626 | * @pdev: PCI device information struct | |
2627 | * @ent: entry in i40evf_pci_tbl | |
2628 | * | |
2629 | * Returns 0 on success, negative on failure | |
2630 | * | |
2631 | * i40evf_probe initializes an adapter identified by a pci_dev structure. | |
2632 | * The OS initialization, configuring of the adapter private structure, | |
2633 | * and a hardware reset occur. | |
2634 | **/ | |
2635 | static int i40evf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) | |
2636 | { | |
2637 | struct net_device *netdev; | |
2638 | struct i40evf_adapter *adapter = NULL; | |
2639 | struct i40e_hw *hw = NULL; | |
dbbd8111 | 2640 | int err; |
5eae00c5 GR |
2641 | |
2642 | err = pci_enable_device(pdev); | |
2643 | if (err) | |
2644 | return err; | |
2645 | ||
6494294f | 2646 | err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); |
6494294f | 2647 | if (err) { |
e3e3bfdd JS |
2648 | err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); |
2649 | if (err) { | |
2650 | dev_err(&pdev->dev, | |
2651 | "DMA configuration failed: 0x%x\n", err); | |
2652 | goto err_dma; | |
2653 | } | |
5eae00c5 GR |
2654 | } |
2655 | ||
2656 | err = pci_request_regions(pdev, i40evf_driver_name); | |
2657 | if (err) { | |
2658 | dev_err(&pdev->dev, | |
2659 | "pci_request_regions failed 0x%x\n", err); | |
2660 | goto err_pci_reg; | |
2661 | } | |
2662 | ||
2663 | pci_enable_pcie_error_reporting(pdev); | |
2664 | ||
2665 | pci_set_master(pdev); | |
2666 | ||
1255b7a1 | 2667 | netdev = alloc_etherdev_mq(sizeof(struct i40evf_adapter), MAX_QUEUES); |
5eae00c5 GR |
2668 | if (!netdev) { |
2669 | err = -ENOMEM; | |
2670 | goto err_alloc_etherdev; | |
2671 | } | |
2672 | ||
2673 | SET_NETDEV_DEV(netdev, &pdev->dev); | |
2674 | ||
2675 | pci_set_drvdata(pdev, netdev); | |
2676 | adapter = netdev_priv(netdev); | |
5eae00c5 GR |
2677 | |
2678 | adapter->netdev = netdev; | |
2679 | adapter->pdev = pdev; | |
2680 | ||
2681 | hw = &adapter->hw; | |
2682 | hw->back = adapter; | |
2683 | ||
41a1d04b | 2684 | adapter->msg_enable = BIT(DEFAULT_DEBUG_LEVEL_SHIFT) - 1; |
5eae00c5 GR |
2685 | adapter->state = __I40EVF_STARTUP; |
2686 | ||
2687 | /* Call save state here because it relies on the adapter struct. */ | |
2688 | pci_save_state(pdev); | |
2689 | ||
2690 | hw->hw_addr = ioremap(pci_resource_start(pdev, 0), | |
2691 | pci_resource_len(pdev, 0)); | |
2692 | if (!hw->hw_addr) { | |
2693 | err = -EIO; | |
2694 | goto err_ioremap; | |
2695 | } | |
2696 | hw->vendor_id = pdev->vendor; | |
2697 | hw->device_id = pdev->device; | |
2698 | pci_read_config_byte(pdev, PCI_REVISION_ID, &hw->revision_id); | |
2699 | hw->subsystem_vendor_id = pdev->subsystem_vendor; | |
2700 | hw->subsystem_device_id = pdev->subsystem_device; | |
2701 | hw->bus.device = PCI_SLOT(pdev->devfn); | |
2702 | hw->bus.func = PCI_FUNC(pdev->devfn); | |
2703 | ||
8ddb3326 JB |
2704 | /* set up the locks for the AQ, do this only once in probe |
2705 | * and destroy them only once in remove | |
2706 | */ | |
2707 | mutex_init(&hw->aq.asq_mutex); | |
2708 | mutex_init(&hw->aq.arq_mutex); | |
2709 | ||
8bb1a540 SK |
2710 | INIT_LIST_HEAD(&adapter->mac_filter_list); |
2711 | INIT_LIST_HEAD(&adapter->vlan_filter_list); | |
2712 | ||
5eae00c5 GR |
2713 | INIT_WORK(&adapter->reset_task, i40evf_reset_task); |
2714 | INIT_WORK(&adapter->adminq_task, i40evf_adminq_task); | |
2715 | INIT_WORK(&adapter->watchdog_task, i40evf_watchdog_task); | |
2716 | INIT_DELAYED_WORK(&adapter->init_task, i40evf_init_task); | |
9b32b0b5 MW |
2717 | schedule_delayed_work(&adapter->init_task, |
2718 | msecs_to_jiffies(5 * (pdev->devfn & 0x07))); | |
5eae00c5 GR |
2719 | |
2720 | return 0; | |
2721 | ||
2722 | err_ioremap: | |
2723 | free_netdev(netdev); | |
2724 | err_alloc_etherdev: | |
2725 | pci_release_regions(pdev); | |
2726 | err_pci_reg: | |
2727 | err_dma: | |
2728 | pci_disable_device(pdev); | |
2729 | return err; | |
2730 | } | |
2731 | ||
2732 | #ifdef CONFIG_PM | |
2733 | /** | |
2734 | * i40evf_suspend - Power management suspend routine | |
2735 | * @pdev: PCI device information struct | |
2736 | * @state: unused | |
2737 | * | |
2738 | * Called when the system (VM) is entering sleep/suspend. | |
2739 | **/ | |
2740 | static int i40evf_suspend(struct pci_dev *pdev, pm_message_t state) | |
2741 | { | |
2742 | struct net_device *netdev = pci_get_drvdata(pdev); | |
2743 | struct i40evf_adapter *adapter = netdev_priv(netdev); | |
2744 | int retval = 0; | |
2745 | ||
2746 | netif_device_detach(netdev); | |
2747 | ||
2748 | if (netif_running(netdev)) { | |
2749 | rtnl_lock(); | |
2750 | i40evf_down(adapter); | |
2751 | rtnl_unlock(); | |
2752 | } | |
2753 | i40evf_free_misc_irq(adapter); | |
2754 | i40evf_reset_interrupt_capability(adapter); | |
2755 | ||
2756 | retval = pci_save_state(pdev); | |
2757 | if (retval) | |
2758 | return retval; | |
2759 | ||
2760 | pci_disable_device(pdev); | |
2761 | ||
2762 | return 0; | |
2763 | } | |
2764 | ||
2765 | /** | |
dbedd44e | 2766 | * i40evf_resume - Power management resume routine |
5eae00c5 GR |
2767 | * @pdev: PCI device information struct |
2768 | * | |
2769 | * Called when the system (VM) is resumed from sleep/suspend. | |
2770 | **/ | |
2771 | static int i40evf_resume(struct pci_dev *pdev) | |
2772 | { | |
2773 | struct i40evf_adapter *adapter = pci_get_drvdata(pdev); | |
2774 | struct net_device *netdev = adapter->netdev; | |
2775 | u32 err; | |
2776 | ||
2777 | pci_set_power_state(pdev, PCI_D0); | |
2778 | pci_restore_state(pdev); | |
2779 | /* pci_restore_state clears dev->state_saved so call | |
2780 | * pci_save_state to restore it. | |
2781 | */ | |
2782 | pci_save_state(pdev); | |
2783 | ||
2784 | err = pci_enable_device_mem(pdev); | |
2785 | if (err) { | |
2786 | dev_err(&pdev->dev, "Cannot enable PCI device from suspend.\n"); | |
2787 | return err; | |
2788 | } | |
2789 | pci_set_master(pdev); | |
2790 | ||
2791 | rtnl_lock(); | |
2792 | err = i40evf_set_interrupt_capability(adapter); | |
2793 | if (err) { | |
f2a1c368 | 2794 | rtnl_unlock(); |
5eae00c5 GR |
2795 | dev_err(&pdev->dev, "Cannot enable MSI-X interrupts.\n"); |
2796 | return err; | |
2797 | } | |
2798 | err = i40evf_request_misc_irq(adapter); | |
2799 | rtnl_unlock(); | |
2800 | if (err) { | |
2801 | dev_err(&pdev->dev, "Cannot get interrupt vector.\n"); | |
2802 | return err; | |
2803 | } | |
2804 | ||
2805 | schedule_work(&adapter->reset_task); | |
2806 | ||
2807 | netif_device_attach(netdev); | |
2808 | ||
2809 | return err; | |
2810 | } | |
2811 | ||
2812 | #endif /* CONFIG_PM */ | |
2813 | /** | |
2814 | * i40evf_remove - Device Removal Routine | |
2815 | * @pdev: PCI device information struct | |
2816 | * | |
2817 | * i40evf_remove is called by the PCI subsystem to alert the driver | |
2818 | * that it should release a PCI device. The could be caused by a | |
2819 | * Hot-Plug event, or because the driver is going to be removed from | |
2820 | * memory. | |
2821 | **/ | |
2822 | static void i40evf_remove(struct pci_dev *pdev) | |
2823 | { | |
2824 | struct net_device *netdev = pci_get_drvdata(pdev); | |
2825 | struct i40evf_adapter *adapter = netdev_priv(netdev); | |
6ba36a24 | 2826 | struct i40evf_mac_filter *f, *ftmp; |
5eae00c5 GR |
2827 | struct i40e_hw *hw = &adapter->hw; |
2828 | ||
2829 | cancel_delayed_work_sync(&adapter->init_task); | |
ef8693eb | 2830 | cancel_work_sync(&adapter->reset_task); |
5eae00c5 GR |
2831 | |
2832 | if (adapter->netdev_registered) { | |
2833 | unregister_netdev(netdev); | |
2834 | adapter->netdev_registered = false; | |
2835 | } | |
53d0b3ae | 2836 | |
f4a71881 | 2837 | /* Shut down all the garbage mashers on the detention level */ |
5eae00c5 | 2838 | adapter->state = __I40EVF_REMOVE; |
f4a71881 | 2839 | adapter->aq_required = 0; |
f4a71881 MW |
2840 | i40evf_request_reset(adapter); |
2841 | msleep(20); | |
2842 | /* If the FW isn't responding, kick it once, but only once. */ | |
2843 | if (!i40evf_asq_done(hw)) { | |
2844 | i40evf_request_reset(adapter); | |
2845 | msleep(20); | |
2846 | } | |
5eae00c5 | 2847 | |
dbb01c8a | 2848 | if (adapter->msix_entries) { |
5eae00c5 | 2849 | i40evf_misc_irq_disable(adapter); |
5eae00c5 | 2850 | i40evf_free_misc_irq(adapter); |
5eae00c5 | 2851 | i40evf_reset_interrupt_capability(adapter); |
d31944d6 | 2852 | i40evf_free_q_vectors(adapter); |
5eae00c5 GR |
2853 | } |
2854 | ||
e5d17c3e MW |
2855 | if (adapter->watchdog_timer.function) |
2856 | del_timer_sync(&adapter->watchdog_timer); | |
2857 | ||
dbb01c8a MW |
2858 | flush_scheduled_work(); |
2859 | ||
66f9af85 HZ |
2860 | /* Clear user configurations for RSS */ |
2861 | i40evf_clear_rss_config_user(&adapter->vsi); | |
2862 | ||
5eae00c5 GR |
2863 | if (hw->aq.asq.count) |
2864 | i40evf_shutdown_adminq(hw); | |
2865 | ||
8ddb3326 JB |
2866 | /* destroy the locks only once, here */ |
2867 | mutex_destroy(&hw->aq.arq_mutex); | |
2868 | mutex_destroy(&hw->aq.asq_mutex); | |
2869 | ||
5eae00c5 GR |
2870 | iounmap(hw->hw_addr); |
2871 | pci_release_regions(pdev); | |
2872 | ||
e284fc88 MW |
2873 | i40evf_free_all_tx_resources(adapter); |
2874 | i40evf_free_all_rx_resources(adapter); | |
5eae00c5 GR |
2875 | i40evf_free_queues(adapter); |
2876 | kfree(adapter->vf_res); | |
6ba36a24 MW |
2877 | /* If we got removed before an up/down sequence, we've got a filter |
2878 | * hanging out there that we need to get rid of. | |
2879 | */ | |
2880 | list_for_each_entry_safe(f, ftmp, &adapter->mac_filter_list, list) { | |
2881 | list_del(&f->list); | |
2882 | kfree(f); | |
2883 | } | |
37dfdf37 MW |
2884 | list_for_each_entry_safe(f, ftmp, &adapter->vlan_filter_list, list) { |
2885 | list_del(&f->list); | |
2886 | kfree(f); | |
2887 | } | |
5eae00c5 GR |
2888 | |
2889 | free_netdev(netdev); | |
2890 | ||
2891 | pci_disable_pcie_error_reporting(pdev); | |
2892 | ||
2893 | pci_disable_device(pdev); | |
2894 | } | |
2895 | ||
2896 | static struct pci_driver i40evf_driver = { | |
2897 | .name = i40evf_driver_name, | |
2898 | .id_table = i40evf_pci_tbl, | |
2899 | .probe = i40evf_probe, | |
2900 | .remove = i40evf_remove, | |
2901 | #ifdef CONFIG_PM | |
2902 | .suspend = i40evf_suspend, | |
2903 | .resume = i40evf_resume, | |
2904 | #endif | |
2905 | .shutdown = i40evf_shutdown, | |
2906 | }; | |
2907 | ||
2908 | /** | |
2909 | * i40e_init_module - Driver Registration Routine | |
2910 | * | |
2911 | * i40e_init_module is the first routine called when the driver is | |
2912 | * loaded. All it does is register with the PCI subsystem. | |
2913 | **/ | |
2914 | static int __init i40evf_init_module(void) | |
2915 | { | |
2916 | int ret; | |
75a64435 | 2917 | |
5eae00c5 | 2918 | pr_info("i40evf: %s - version %s\n", i40evf_driver_string, |
75a64435 | 2919 | i40evf_driver_version); |
5eae00c5 GR |
2920 | |
2921 | pr_info("%s\n", i40evf_copyright); | |
2922 | ||
2803b16c JB |
2923 | i40evf_wq = create_singlethread_workqueue(i40evf_driver_name); |
2924 | if (!i40evf_wq) { | |
2925 | pr_err("%s: Failed to create workqueue\n", i40evf_driver_name); | |
2926 | return -ENOMEM; | |
2927 | } | |
5eae00c5 GR |
2928 | ret = pci_register_driver(&i40evf_driver); |
2929 | return ret; | |
2930 | } | |
2931 | ||
2932 | module_init(i40evf_init_module); | |
2933 | ||
2934 | /** | |
2935 | * i40e_exit_module - Driver Exit Cleanup Routine | |
2936 | * | |
2937 | * i40e_exit_module is called just before the driver is removed | |
2938 | * from memory. | |
2939 | **/ | |
2940 | static void __exit i40evf_exit_module(void) | |
2941 | { | |
2942 | pci_unregister_driver(&i40evf_driver); | |
2803b16c | 2943 | destroy_workqueue(i40evf_wq); |
5eae00c5 GR |
2944 | } |
2945 | ||
2946 | module_exit(i40evf_exit_module); | |
2947 | ||
2948 | /* i40evf_main.c */ |