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ddf30f7f AV |
1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* Copyright (c) 2018, Intel Corporation. */ | |
3 | ||
4 | #include "ice.h" | |
109aba47 | 5 | #include "ice_vf_lib_private.h" |
eff380aa | 6 | #include "ice_base.h" |
ddf30f7f | 7 | #include "ice_lib.h" |
1b8f15b6 | 8 | #include "ice_fltr.h" |
4ecc8633 | 9 | #include "ice_dcb_lib.h" |
222a8ab0 | 10 | #include "ice_flow.h" |
1c54c839 | 11 | #include "ice_eswitch.h" |
c0dcaa55 | 12 | #include "ice_virtchnl_allowlist.h" |
60f44fe4 | 13 | #include "ice_flex_pipe.h" |
c31af68a | 14 | #include "ice_vf_vsi_vlan_ops.h" |
cc71de8f | 15 | #include "ice_vlan.h" |
ddf30f7f | 16 | |
3d5985a1 JK |
17 | /** |
18 | * ice_free_vf_entries - Free all VF entries from the hash table | |
19 | * @pf: pointer to the PF structure | |
20 | * | |
21 | * Iterate over the VF hash table, removing and releasing all VF entries. | |
22 | * Called during VF teardown or as cleanup during failed VF initialization. | |
23 | */ | |
24 | static void ice_free_vf_entries(struct ice_pf *pf) | |
25 | { | |
26 | struct ice_vfs *vfs = &pf->vfs; | |
27 | struct hlist_node *tmp; | |
28 | struct ice_vf *vf; | |
29 | unsigned int bkt; | |
30 | ||
31 | /* Remove all VFs from the hash table and release their main | |
32 | * reference. Once all references to the VF are dropped, ice_put_vf() | |
33 | * will call ice_release_vf which will remove the VF memory. | |
34 | */ | |
35 | lockdep_assert_held(&vfs->table_lock); | |
36 | ||
37 | hash_for_each_safe(vfs->table, bkt, tmp, vf, entry) { | |
38 | hash_del_rcu(&vf->entry); | |
39 | ice_put_vf(vf); | |
40 | } | |
41 | } | |
42 | ||
ddf30f7f AV |
43 | /** |
44 | * ice_free_vf_res - Free a VF's resources | |
45 | * @vf: pointer to the VF info | |
46 | */ | |
47 | static void ice_free_vf_res(struct ice_vf *vf) | |
48 | { | |
49 | struct ice_pf *pf = vf->pf; | |
72ecb896 | 50 | int i, last_vector_idx; |
ddf30f7f AV |
51 | |
52 | /* First, disable VF's configuration API to prevent OS from | |
53 | * accessing the VF's VSI after it's freed or invalidated. | |
54 | */ | |
55 | clear_bit(ICE_VF_STATE_INIT, vf->vf_states); | |
1f7ea1cd | 56 | ice_vf_fdir_exit(vf); |
da62c5ff QZ |
57 | /* free VF control VSI */ |
58 | if (vf->ctrl_vsi_idx != ICE_NO_VSI) | |
59 | ice_vf_ctrl_vsi_release(vf); | |
ddf30f7f | 60 | |
2f2da36e | 61 | /* free VSI and disconnect it from the parent uplink */ |
3726cce2 BC |
62 | if (vf->lan_vsi_idx != ICE_NO_VSI) { |
63 | ice_vf_vsi_release(vf); | |
ddf30f7f AV |
64 | vf->num_mac = 0; |
65 | } | |
66 | ||
000773c0 | 67 | last_vector_idx = vf->first_vector_idx + pf->vfs.num_msix_per - 1; |
9d5c5a52 PG |
68 | |
69 | /* clear VF MDD event information */ | |
70 | memset(&vf->mdd_tx_events, 0, sizeof(vf->mdd_tx_events)); | |
71 | memset(&vf->mdd_rx_events, 0, sizeof(vf->mdd_rx_events)); | |
72 | ||
ddf30f7f | 73 | /* Disable interrupts so that VF starts in a known state */ |
72ecb896 BC |
74 | for (i = vf->first_vector_idx; i <= last_vector_idx; i++) { |
75 | wr32(&pf->hw, GLINT_DYN_CTL(i), GLINT_DYN_CTL_CLEARPBA_M); | |
ddf30f7f AV |
76 | ice_flush(&pf->hw); |
77 | } | |
78 | /* reset some of the state variables keeping track of the resources */ | |
79 | clear_bit(ICE_VF_STATE_MC_PROMISC, vf->vf_states); | |
80 | clear_bit(ICE_VF_STATE_UC_PROMISC, vf->vf_states); | |
81 | } | |
82 | ||
ddf30f7f AV |
83 | /** |
84 | * ice_dis_vf_mappings | |
85 | * @vf: pointer to the VF structure | |
86 | */ | |
87 | static void ice_dis_vf_mappings(struct ice_vf *vf) | |
88 | { | |
89 | struct ice_pf *pf = vf->pf; | |
90 | struct ice_vsi *vsi; | |
4015d11e | 91 | struct device *dev; |
ddf30f7f AV |
92 | int first, last, v; |
93 | struct ice_hw *hw; | |
94 | ||
95 | hw = &pf->hw; | |
c5afbe99 | 96 | vsi = ice_get_vf_vsi(vf); |
baeb705f JK |
97 | if (WARN_ON(!vsi)) |
98 | return; | |
ddf30f7f | 99 | |
4015d11e | 100 | dev = ice_pf_to_dev(pf); |
ddf30f7f | 101 | wr32(hw, VPINT_ALLOC(vf->vf_id), 0); |
982b1219 | 102 | wr32(hw, VPINT_ALLOC_PCI(vf->vf_id), 0); |
ddf30f7f | 103 | |
cbe66bfe | 104 | first = vf->first_vector_idx; |
000773c0 | 105 | last = first + pf->vfs.num_msix_per - 1; |
ddf30f7f AV |
106 | for (v = first; v <= last; v++) { |
107 | u32 reg; | |
108 | ||
109 | reg = (((1 << GLINT_VECT2FUNC_IS_PF_S) & | |
110 | GLINT_VECT2FUNC_IS_PF_M) | | |
111 | ((hw->pf_id << GLINT_VECT2FUNC_PF_NUM_S) & | |
112 | GLINT_VECT2FUNC_PF_NUM_M)); | |
113 | wr32(hw, GLINT_VECT2FUNC(v), reg); | |
114 | } | |
115 | ||
116 | if (vsi->tx_mapping_mode == ICE_VSI_MAP_CONTIG) | |
117 | wr32(hw, VPLAN_TX_QBASE(vf->vf_id), 0); | |
118 | else | |
4015d11e | 119 | dev_err(dev, "Scattered mode for VF Tx queues is not yet implemented\n"); |
ddf30f7f AV |
120 | |
121 | if (vsi->rx_mapping_mode == ICE_VSI_MAP_CONTIG) | |
122 | wr32(hw, VPLAN_RX_QBASE(vf->vf_id), 0); | |
123 | else | |
19cce2c6 | 124 | dev_err(dev, "Scattered mode for VF Rx queues is not yet implemented\n"); |
ddf30f7f AV |
125 | } |
126 | ||
cbe66bfe BC |
127 | /** |
128 | * ice_sriov_free_msix_res - Reset/free any used MSIX resources | |
129 | * @pf: pointer to the PF structure | |
130 | * | |
0ca469fb | 131 | * Since no MSIX entries are taken from the pf->irq_tracker then just clear |
cbe66bfe BC |
132 | * the pf->sriov_base_vector. |
133 | * | |
134 | * Returns 0 on success, and -EINVAL on error. | |
135 | */ | |
136 | static int ice_sriov_free_msix_res(struct ice_pf *pf) | |
137 | { | |
138 | struct ice_res_tracker *res; | |
139 | ||
140 | if (!pf) | |
141 | return -EINVAL; | |
142 | ||
143 | res = pf->irq_tracker; | |
144 | if (!res) | |
145 | return -EINVAL; | |
146 | ||
147 | /* give back irq_tracker resources used */ | |
0ca469fb | 148 | WARN_ON(pf->sriov_base_vector < res->num_entries); |
cbe66bfe BC |
149 | |
150 | pf->sriov_base_vector = 0; | |
151 | ||
152 | return 0; | |
153 | } | |
154 | ||
ddf30f7f AV |
155 | /** |
156 | * ice_free_vfs - Free all VFs | |
157 | * @pf: pointer to the PF structure | |
158 | */ | |
159 | void ice_free_vfs(struct ice_pf *pf) | |
160 | { | |
4015d11e | 161 | struct device *dev = ice_pf_to_dev(pf); |
000773c0 | 162 | struct ice_vfs *vfs = &pf->vfs; |
ddf30f7f | 163 | struct ice_hw *hw = &pf->hw; |
c4c2c7db JK |
164 | struct ice_vf *vf; |
165 | unsigned int bkt; | |
ddf30f7f | 166 | |
fb916db1 | 167 | if (!ice_has_vfs(pf)) |
ddf30f7f AV |
168 | return; |
169 | ||
7e408e07 | 170 | while (test_and_set_bit(ICE_VF_DIS, pf->state)) |
ddf30f7f AV |
171 | usleep_range(1000, 2000); |
172 | ||
72ecb896 BC |
173 | /* Disable IOV before freeing resources. This lets any VF drivers |
174 | * running in the host get themselves cleaned up before we yank | |
175 | * the carpet out from underneath their feet. | |
176 | */ | |
177 | if (!pci_vfs_assigned(pf->pdev)) | |
178 | pci_disable_sriov(pf->pdev); | |
179 | else | |
4015d11e | 180 | dev_warn(dev, "VFs are assigned - not disabling SR-IOV\n"); |
72ecb896 | 181 | |
3d5985a1 JK |
182 | mutex_lock(&vfs->table_lock); |
183 | ||
184 | ice_eswitch_release(pf); | |
185 | ||
c4c2c7db | 186 | ice_for_each_vf(pf, bkt, vf) { |
fadead80 JK |
187 | mutex_lock(&vf->cfg_lock); |
188 | ||
189 | ice_dis_vf_qs(vf); | |
190 | ||
191 | if (test_bit(ICE_VF_STATE_INIT, vf->vf_states)) { | |
1f9639d2 | 192 | /* disable VF qp mappings and set VF disable state */ |
fadead80 JK |
193 | ice_dis_vf_mappings(vf); |
194 | set_bit(ICE_VF_STATE_DIS, vf->vf_states); | |
195 | ice_free_vf_res(vf); | |
ddf30f7f | 196 | } |
e6ba5273 | 197 | |
44efe75f JK |
198 | if (!pci_vfs_assigned(pf->pdev)) { |
199 | u32 reg_idx, bit_idx; | |
200 | ||
201 | reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32; | |
202 | bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32; | |
203 | wr32(hw, GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); | |
204 | } | |
205 | ||
294627a6 | 206 | /* clear malicious info since the VF is getting released */ |
000773c0 | 207 | if (ice_mbx_clear_malvf(&hw->mbx_snapshot, pf->vfs.malvfs, |
dc36796e | 208 | ICE_MAX_SRIOV_VFS, vf->vf_id)) |
294627a6 JK |
209 | dev_dbg(dev, "failed to clear malicious VF state for VF %u\n", |
210 | vf->vf_id); | |
211 | ||
fadead80 | 212 | mutex_unlock(&vf->cfg_lock); |
ddf30f7f AV |
213 | } |
214 | ||
cbe66bfe | 215 | if (ice_sriov_free_msix_res(pf)) |
4015d11e | 216 | dev_err(dev, "Failed to free MSIX resources used by SR-IOV\n"); |
cbe66bfe | 217 | |
000773c0 | 218 | vfs->num_qps_per = 0; |
3d5985a1 JK |
219 | ice_free_vf_entries(pf); |
220 | ||
221 | mutex_unlock(&vfs->table_lock); | |
ddf30f7f | 222 | |
7e408e07 | 223 | clear_bit(ICE_VF_DIS, pf->state); |
ddf30f7f AV |
224 | clear_bit(ICE_FLAG_SRIOV_ENA, pf->flags); |
225 | } | |
226 | ||
ddf30f7f AV |
227 | /** |
228 | * ice_vf_vsi_setup - Set up a VF VSI | |
3726cce2 | 229 | * @vf: VF to setup VSI for |
ddf30f7f AV |
230 | * |
231 | * Returns pointer to the successfully allocated VSI struct on success, | |
232 | * otherwise returns NULL on failure. | |
233 | */ | |
3726cce2 | 234 | static struct ice_vsi *ice_vf_vsi_setup(struct ice_vf *vf) |
ddf30f7f | 235 | { |
5e509ab2 | 236 | struct ice_vsi_cfg_params params = {}; |
3726cce2 BC |
237 | struct ice_pf *pf = vf->pf; |
238 | struct ice_vsi *vsi; | |
239 | ||
5e509ab2 JK |
240 | params.type = ICE_VSI_VF; |
241 | params.pi = ice_vf_get_port_info(vf); | |
242 | params.vf = vf; | |
243 | params.flags = ICE_VSI_FLAG_INIT; | |
244 | ||
245 | vsi = ice_vsi_setup(pf, ¶ms); | |
3726cce2 BC |
246 | |
247 | if (!vsi) { | |
248 | dev_err(ice_pf_to_dev(pf), "Failed to create VF VSI\n"); | |
249 | ice_vf_invalidate_vsi(vf); | |
250 | return NULL; | |
251 | } | |
252 | ||
253 | vf->lan_vsi_idx = vsi->idx; | |
254 | vf->lan_vsi_num = vsi->vsi_num; | |
255 | ||
256 | return vsi; | |
ddf30f7f AV |
257 | } |
258 | ||
cbe66bfe | 259 | /** |
1337175d | 260 | * ice_calc_vf_first_vector_idx - Calculate MSIX vector index in the PF space |
cbe66bfe BC |
261 | * @pf: pointer to PF structure |
262 | * @vf: pointer to VF that the first MSIX vector index is being calculated for | |
263 | * | |
1337175d PG |
264 | * This returns the first MSIX vector index in PF space that is used by this VF. |
265 | * This index is used when accessing PF relative registers such as | |
266 | * GLINT_VECT2FUNC and GLINT_DYN_CTL. | |
267 | * This will always be the OICR index in the AVF driver so any functionality | |
cbe66bfe BC |
268 | * using vf->first_vector_idx for queue configuration will have to increment by |
269 | * 1 to avoid meddling with the OICR index. | |
270 | */ | |
271 | static int ice_calc_vf_first_vector_idx(struct ice_pf *pf, struct ice_vf *vf) | |
272 | { | |
000773c0 | 273 | return pf->sriov_base_vector + vf->vf_id * pf->vfs.num_msix_per; |
cbe66bfe BC |
274 | } |
275 | ||
ddf30f7f | 276 | /** |
ac371613 BC |
277 | * ice_ena_vf_msix_mappings - enable VF MSIX mappings in hardware |
278 | * @vf: VF to enable MSIX mappings for | |
ddf30f7f | 279 | * |
ac371613 BC |
280 | * Some of the registers need to be indexed/configured using hardware global |
281 | * device values and other registers need 0-based values, which represent PF | |
282 | * based values. | |
ddf30f7f | 283 | */ |
ac371613 | 284 | static void ice_ena_vf_msix_mappings(struct ice_vf *vf) |
ddf30f7f | 285 | { |
ac371613 BC |
286 | int device_based_first_msix, device_based_last_msix; |
287 | int pf_based_first_msix, pf_based_last_msix, v; | |
ddf30f7f | 288 | struct ice_pf *pf = vf->pf; |
ac371613 | 289 | int device_based_vf_id; |
ddf30f7f | 290 | struct ice_hw *hw; |
ddf30f7f AV |
291 | u32 reg; |
292 | ||
293 | hw = &pf->hw; | |
ac371613 | 294 | pf_based_first_msix = vf->first_vector_idx; |
000773c0 | 295 | pf_based_last_msix = (pf_based_first_msix + pf->vfs.num_msix_per) - 1; |
ac371613 BC |
296 | |
297 | device_based_first_msix = pf_based_first_msix + | |
298 | pf->hw.func_caps.common_cap.msix_vector_first_id; | |
299 | device_based_last_msix = | |
000773c0 | 300 | (device_based_first_msix + pf->vfs.num_msix_per) - 1; |
ac371613 BC |
301 | device_based_vf_id = vf->vf_id + hw->func_caps.vf_base_id; |
302 | ||
303 | reg = (((device_based_first_msix << VPINT_ALLOC_FIRST_S) & | |
304 | VPINT_ALLOC_FIRST_M) | | |
305 | ((device_based_last_msix << VPINT_ALLOC_LAST_S) & | |
306 | VPINT_ALLOC_LAST_M) | VPINT_ALLOC_VALID_M); | |
ddf30f7f AV |
307 | wr32(hw, VPINT_ALLOC(vf->vf_id), reg); |
308 | ||
ac371613 | 309 | reg = (((device_based_first_msix << VPINT_ALLOC_PCI_FIRST_S) |
1337175d | 310 | & VPINT_ALLOC_PCI_FIRST_M) | |
ac371613 BC |
311 | ((device_based_last_msix << VPINT_ALLOC_PCI_LAST_S) & |
312 | VPINT_ALLOC_PCI_LAST_M) | VPINT_ALLOC_PCI_VALID_M); | |
982b1219 | 313 | wr32(hw, VPINT_ALLOC_PCI(vf->vf_id), reg); |
ac371613 | 314 | |
ddf30f7f | 315 | /* map the interrupts to its functions */ |
ac371613 BC |
316 | for (v = pf_based_first_msix; v <= pf_based_last_msix; v++) { |
317 | reg = (((device_based_vf_id << GLINT_VECT2FUNC_VF_NUM_S) & | |
ddf30f7f AV |
318 | GLINT_VECT2FUNC_VF_NUM_M) | |
319 | ((hw->pf_id << GLINT_VECT2FUNC_PF_NUM_S) & | |
320 | GLINT_VECT2FUNC_PF_NUM_M)); | |
321 | wr32(hw, GLINT_VECT2FUNC(v), reg); | |
322 | } | |
323 | ||
ac371613 BC |
324 | /* Map mailbox interrupt to VF MSI-X vector 0 */ |
325 | wr32(hw, VPINT_MBX_CTL(device_based_vf_id), VPINT_MBX_CTL_CAUSE_ENA_M); | |
326 | } | |
327 | ||
328 | /** | |
329 | * ice_ena_vf_q_mappings - enable Rx/Tx queue mappings for a VF | |
330 | * @vf: VF to enable the mappings for | |
331 | * @max_txq: max Tx queues allowed on the VF's VSI | |
332 | * @max_rxq: max Rx queues allowed on the VF's VSI | |
333 | */ | |
334 | static void ice_ena_vf_q_mappings(struct ice_vf *vf, u16 max_txq, u16 max_rxq) | |
335 | { | |
ac371613 | 336 | struct device *dev = ice_pf_to_dev(vf->pf); |
c5afbe99 | 337 | struct ice_vsi *vsi = ice_get_vf_vsi(vf); |
ac371613 BC |
338 | struct ice_hw *hw = &vf->pf->hw; |
339 | u32 reg; | |
340 | ||
baeb705f JK |
341 | if (WARN_ON(!vsi)) |
342 | return; | |
343 | ||
982b1219 AV |
344 | /* set regardless of mapping mode */ |
345 | wr32(hw, VPLAN_TXQ_MAPENA(vf->vf_id), VPLAN_TXQ_MAPENA_TX_ENA_M); | |
346 | ||
ddf30f7f AV |
347 | /* VF Tx queues allocation */ |
348 | if (vsi->tx_mapping_mode == ICE_VSI_MAP_CONTIG) { | |
ddf30f7f AV |
349 | /* set the VF PF Tx queue range |
350 | * VFNUMQ value should be set to (number of queues - 1). A value | |
351 | * of 0 means 1 queue and a value of 255 means 256 queues | |
352 | */ | |
353 | reg = (((vsi->txq_map[0] << VPLAN_TX_QBASE_VFFIRSTQ_S) & | |
354 | VPLAN_TX_QBASE_VFFIRSTQ_M) | | |
ac371613 | 355 | (((max_txq - 1) << VPLAN_TX_QBASE_VFNUMQ_S) & |
ddf30f7f AV |
356 | VPLAN_TX_QBASE_VFNUMQ_M)); |
357 | wr32(hw, VPLAN_TX_QBASE(vf->vf_id), reg); | |
358 | } else { | |
4015d11e | 359 | dev_err(dev, "Scattered mode for VF Tx queues is not yet implemented\n"); |
ddf30f7f AV |
360 | } |
361 | ||
982b1219 AV |
362 | /* set regardless of mapping mode */ |
363 | wr32(hw, VPLAN_RXQ_MAPENA(vf->vf_id), VPLAN_RXQ_MAPENA_RX_ENA_M); | |
364 | ||
ddf30f7f AV |
365 | /* VF Rx queues allocation */ |
366 | if (vsi->rx_mapping_mode == ICE_VSI_MAP_CONTIG) { | |
ddf30f7f AV |
367 | /* set the VF PF Rx queue range |
368 | * VFNUMQ value should be set to (number of queues - 1). A value | |
369 | * of 0 means 1 queue and a value of 255 means 256 queues | |
370 | */ | |
371 | reg = (((vsi->rxq_map[0] << VPLAN_RX_QBASE_VFFIRSTQ_S) & | |
372 | VPLAN_RX_QBASE_VFFIRSTQ_M) | | |
ac371613 | 373 | (((max_rxq - 1) << VPLAN_RX_QBASE_VFNUMQ_S) & |
ddf30f7f AV |
374 | VPLAN_RX_QBASE_VFNUMQ_M)); |
375 | wr32(hw, VPLAN_RX_QBASE(vf->vf_id), reg); | |
376 | } else { | |
4015d11e | 377 | dev_err(dev, "Scattered mode for VF Rx queues is not yet implemented\n"); |
ddf30f7f AV |
378 | } |
379 | } | |
380 | ||
ac371613 BC |
381 | /** |
382 | * ice_ena_vf_mappings - enable VF MSIX and queue mapping | |
383 | * @vf: pointer to the VF structure | |
384 | */ | |
385 | static void ice_ena_vf_mappings(struct ice_vf *vf) | |
386 | { | |
c5afbe99 | 387 | struct ice_vsi *vsi = ice_get_vf_vsi(vf); |
ac371613 | 388 | |
baeb705f JK |
389 | if (WARN_ON(!vsi)) |
390 | return; | |
391 | ||
ac371613 BC |
392 | ice_ena_vf_msix_mappings(vf); |
393 | ice_ena_vf_q_mappings(vf, vsi->alloc_txq, vsi->alloc_rxq); | |
394 | } | |
395 | ||
cbe66bfe BC |
396 | /** |
397 | * ice_calc_vf_reg_idx - Calculate the VF's register index in the PF space | |
398 | * @vf: VF to calculate the register index for | |
399 | * @q_vector: a q_vector associated to the VF | |
400 | */ | |
401 | int ice_calc_vf_reg_idx(struct ice_vf *vf, struct ice_q_vector *q_vector) | |
402 | { | |
403 | struct ice_pf *pf; | |
404 | ||
405 | if (!vf || !q_vector) | |
406 | return -EINVAL; | |
407 | ||
408 | pf = vf->pf; | |
409 | ||
410 | /* always add one to account for the OICR being the first MSIX */ | |
000773c0 | 411 | return pf->sriov_base_vector + pf->vfs.num_msix_per * vf->vf_id + |
cbe66bfe BC |
412 | q_vector->v_idx + 1; |
413 | } | |
414 | ||
415 | /** | |
416 | * ice_get_max_valid_res_idx - Get the max valid resource index | |
417 | * @res: pointer to the resource to find the max valid index for | |
418 | * | |
419 | * Start from the end of the ice_res_tracker and return right when we find the | |
420 | * first res->list entry with the ICE_RES_VALID_BIT set. This function is only | |
421 | * valid for SR-IOV because it is the only consumer that manipulates the | |
422 | * res->end and this is always called when res->end is set to res->num_entries. | |
423 | */ | |
424 | static int ice_get_max_valid_res_idx(struct ice_res_tracker *res) | |
425 | { | |
426 | int i; | |
427 | ||
428 | if (!res) | |
429 | return -EINVAL; | |
430 | ||
431 | for (i = res->num_entries - 1; i >= 0; i--) | |
432 | if (res->list[i] & ICE_RES_VALID_BIT) | |
433 | return i; | |
434 | ||
435 | return 0; | |
436 | } | |
437 | ||
438 | /** | |
439 | * ice_sriov_set_msix_res - Set any used MSIX resources | |
440 | * @pf: pointer to PF structure | |
441 | * @num_msix_needed: number of MSIX vectors needed for all SR-IOV VFs | |
442 | * | |
443 | * This function allows SR-IOV resources to be taken from the end of the PF's | |
0ca469fb MW |
444 | * allowed HW MSIX vectors so that the irq_tracker will not be affected. We |
445 | * just set the pf->sriov_base_vector and return success. | |
cbe66bfe | 446 | * |
0ca469fb MW |
447 | * If there are not enough resources available, return an error. This should |
448 | * always be caught by ice_set_per_vf_res(). | |
cbe66bfe | 449 | * |
ac382a09 | 450 | * Return 0 on success, and -EINVAL when there are not enough MSIX vectors |
cbe66bfe BC |
451 | * in the PF's space available for SR-IOV. |
452 | */ | |
453 | static int ice_sriov_set_msix_res(struct ice_pf *pf, u16 num_msix_needed) | |
454 | { | |
0ca469fb MW |
455 | u16 total_vectors = pf->hw.func_caps.common_cap.num_msix_vectors; |
456 | int vectors_used = pf->irq_tracker->num_entries; | |
cbe66bfe BC |
457 | int sriov_base_vector; |
458 | ||
0ca469fb | 459 | sriov_base_vector = total_vectors - num_msix_needed; |
cbe66bfe BC |
460 | |
461 | /* make sure we only grab irq_tracker entries from the list end and | |
462 | * that we have enough available MSIX vectors | |
463 | */ | |
0ca469fb | 464 | if (sriov_base_vector < vectors_used) |
cbe66bfe BC |
465 | return -EINVAL; |
466 | ||
467 | pf->sriov_base_vector = sriov_base_vector; | |
468 | ||
cbe66bfe BC |
469 | return 0; |
470 | } | |
471 | ||
ddf30f7f | 472 | /** |
0ca469fb | 473 | * ice_set_per_vf_res - check if vectors and queues are available |
ddf30f7f | 474 | * @pf: pointer to the PF structure |
cd0f4f3b | 475 | * @num_vfs: the number of SR-IOV VFs being configured |
ddf30f7f | 476 | * |
0ca469fb MW |
477 | * First, determine HW interrupts from common pool. If we allocate fewer VFs, we |
478 | * get more vectors and can enable more queues per VF. Note that this does not | |
479 | * grab any vectors from the SW pool already allocated. Also note, that all | |
480 | * vector counts include one for each VF's miscellaneous interrupt vector | |
481 | * (i.e. OICR). | |
482 | * | |
483 | * Minimum VFs - 2 vectors, 1 queue pair | |
484 | * Small VFs - 5 vectors, 4 queue pairs | |
485 | * Medium VFs - 17 vectors, 16 queue pairs | |
486 | * | |
487 | * Second, determine number of queue pairs per VF by starting with a pre-defined | |
488 | * maximum each VF supports. If this is not possible, then we adjust based on | |
489 | * queue pairs available on the device. | |
490 | * | |
491 | * Lastly, set queue and MSI-X VF variables tracked by the PF so it can be used | |
492 | * by each VF during VF initialization and reset. | |
ddf30f7f | 493 | */ |
cd0f4f3b | 494 | static int ice_set_per_vf_res(struct ice_pf *pf, u16 num_vfs) |
ddf30f7f | 495 | { |
cbe66bfe | 496 | int max_valid_res_idx = ice_get_max_valid_res_idx(pf->irq_tracker); |
cd0f4f3b | 497 | u16 num_msix_per_vf, num_txq, num_rxq, avail_qs; |
46c276ce | 498 | int msix_avail_per_vf, msix_avail_for_sriov; |
4015d11e | 499 | struct device *dev = ice_pf_to_dev(pf); |
94ab2488 | 500 | int err; |
ddf30f7f | 501 | |
3d5985a1 JK |
502 | lockdep_assert_held(&pf->vfs.table_lock); |
503 | ||
94ab2488 | 504 | if (!num_vfs) |
ddf30f7f AV |
505 | return -EINVAL; |
506 | ||
94ab2488 JK |
507 | if (max_valid_res_idx < 0) |
508 | return -ENOSPC; | |
509 | ||
0ca469fb | 510 | /* determine MSI-X resources per VF */ |
46c276ce BC |
511 | msix_avail_for_sriov = pf->hw.func_caps.common_cap.num_msix_vectors - |
512 | pf->irq_tracker->num_entries; | |
cd0f4f3b | 513 | msix_avail_per_vf = msix_avail_for_sriov / num_vfs; |
46c276ce BC |
514 | if (msix_avail_per_vf >= ICE_NUM_VF_MSIX_MED) { |
515 | num_msix_per_vf = ICE_NUM_VF_MSIX_MED; | |
516 | } else if (msix_avail_per_vf >= ICE_NUM_VF_MSIX_SMALL) { | |
517 | num_msix_per_vf = ICE_NUM_VF_MSIX_SMALL; | |
f34f5555 BC |
518 | } else if (msix_avail_per_vf >= ICE_NUM_VF_MSIX_MULTIQ_MIN) { |
519 | num_msix_per_vf = ICE_NUM_VF_MSIX_MULTIQ_MIN; | |
46c276ce BC |
520 | } else if (msix_avail_per_vf >= ICE_MIN_INTR_PER_VF) { |
521 | num_msix_per_vf = ICE_MIN_INTR_PER_VF; | |
ddf30f7f | 522 | } else { |
46c276ce BC |
523 | dev_err(dev, "Only %d MSI-X interrupts available for SR-IOV. Not enough to support minimum of %d MSI-X interrupts per VF for %d VFs\n", |
524 | msix_avail_for_sriov, ICE_MIN_INTR_PER_VF, | |
cd0f4f3b | 525 | num_vfs); |
94ab2488 | 526 | return -ENOSPC; |
ddf30f7f AV |
527 | } |
528 | ||
cd0f4f3b JK |
529 | num_txq = min_t(u16, num_msix_per_vf - ICE_NONQ_VECS_VF, |
530 | ICE_MAX_RSS_QS_PER_VF); | |
531 | avail_qs = ice_get_avail_txq_count(pf) / num_vfs; | |
532 | if (!avail_qs) | |
533 | num_txq = 0; | |
534 | else if (num_txq > avail_qs) | |
535 | num_txq = rounddown_pow_of_two(avail_qs); | |
536 | ||
537 | num_rxq = min_t(u16, num_msix_per_vf - ICE_NONQ_VECS_VF, | |
538 | ICE_MAX_RSS_QS_PER_VF); | |
539 | avail_qs = ice_get_avail_rxq_count(pf) / num_vfs; | |
540 | if (!avail_qs) | |
541 | num_rxq = 0; | |
542 | else if (num_rxq > avail_qs) | |
543 | num_rxq = rounddown_pow_of_two(avail_qs); | |
544 | ||
545 | if (num_txq < ICE_MIN_QS_PER_VF || num_rxq < ICE_MIN_QS_PER_VF) { | |
46c276ce | 546 | dev_err(dev, "Not enough queues to support minimum of %d queue pairs per VF for %d VFs\n", |
cd0f4f3b | 547 | ICE_MIN_QS_PER_VF, num_vfs); |
94ab2488 | 548 | return -ENOSPC; |
0ca469fb | 549 | } |
ddf30f7f | 550 | |
94ab2488 JK |
551 | err = ice_sriov_set_msix_res(pf, num_msix_per_vf * num_vfs); |
552 | if (err) { | |
553 | dev_err(dev, "Unable to set MSI-X resources for %d VFs, err %d\n", | |
554 | num_vfs, err); | |
555 | return err; | |
0ca469fb | 556 | } |
cbe66bfe | 557 | |
0ca469fb | 558 | /* only allow equal Tx/Rx queue count (i.e. queue pairs) */ |
000773c0 JK |
559 | pf->vfs.num_qps_per = min_t(int, num_txq, num_rxq); |
560 | pf->vfs.num_msix_per = num_msix_per_vf; | |
0ca469fb | 561 | dev_info(dev, "Enabling %d VFs with %d vectors and %d queues per VF\n", |
000773c0 | 562 | num_vfs, pf->vfs.num_msix_per, pf->vfs.num_qps_per); |
ddf30f7f AV |
563 | |
564 | return 0; | |
565 | } | |
566 | ||
916c7fdf BC |
567 | /** |
568 | * ice_init_vf_vsi_res - initialize/setup VF VSI resources | |
569 | * @vf: VF to initialize/setup the VSI for | |
570 | * | |
571 | * This function creates a VSI for the VF, adds a VLAN 0 filter, and sets up the | |
572 | * VF VSI's broadcast filter and is only used during initial VF creation. | |
573 | */ | |
574 | static int ice_init_vf_vsi_res(struct ice_vf *vf) | |
575 | { | |
576 | struct ice_pf *pf = vf->pf; | |
916c7fdf | 577 | struct ice_vsi *vsi; |
916c7fdf BC |
578 | int err; |
579 | ||
580 | vf->first_vector_idx = ice_calc_vf_first_vector_idx(pf, vf); | |
581 | ||
3726cce2 BC |
582 | vsi = ice_vf_vsi_setup(vf); |
583 | if (!vsi) | |
916c7fdf | 584 | return -ENOMEM; |
916c7fdf | 585 | |
b1b56942 JK |
586 | err = ice_vf_init_host_cfg(vf, vsi); |
587 | if (err) | |
916c7fdf | 588 | goto release_vsi; |
916c7fdf BC |
589 | |
590 | return 0; | |
591 | ||
592 | release_vsi: | |
3726cce2 | 593 | ice_vf_vsi_release(vf); |
916c7fdf BC |
594 | return err; |
595 | } | |
596 | ||
597 | /** | |
598 | * ice_start_vfs - start VFs so they are ready to be used by SR-IOV | |
599 | * @pf: PF the VFs are associated with | |
600 | */ | |
601 | static int ice_start_vfs(struct ice_pf *pf) | |
602 | { | |
603 | struct ice_hw *hw = &pf->hw; | |
c4c2c7db JK |
604 | unsigned int bkt, it_cnt; |
605 | struct ice_vf *vf; | |
606 | int retval; | |
916c7fdf | 607 | |
3d5985a1 JK |
608 | lockdep_assert_held(&pf->vfs.table_lock); |
609 | ||
c4c2c7db JK |
610 | it_cnt = 0; |
611 | ice_for_each_vf(pf, bkt, vf) { | |
9c6f7878 | 612 | vf->vf_ops->clear_reset_trigger(vf); |
916c7fdf BC |
613 | |
614 | retval = ice_init_vf_vsi_res(vf); | |
615 | if (retval) { | |
616 | dev_err(ice_pf_to_dev(pf), "Failed to initialize VSI resources for VF %d, error %d\n", | |
617 | vf->vf_id, retval); | |
618 | goto teardown; | |
619 | } | |
620 | ||
621 | set_bit(ICE_VF_STATE_INIT, vf->vf_states); | |
622 | ice_ena_vf_mappings(vf); | |
623 | wr32(hw, VFGEN_RSTAT(vf->vf_id), VIRTCHNL_VFR_VFACTIVE); | |
c4c2c7db | 624 | it_cnt++; |
916c7fdf BC |
625 | } |
626 | ||
627 | ice_flush(hw); | |
628 | return 0; | |
629 | ||
630 | teardown: | |
c4c2c7db JK |
631 | ice_for_each_vf(pf, bkt, vf) { |
632 | if (it_cnt == 0) | |
633 | break; | |
916c7fdf BC |
634 | |
635 | ice_dis_vf_mappings(vf); | |
3726cce2 | 636 | ice_vf_vsi_release(vf); |
c4c2c7db | 637 | it_cnt--; |
916c7fdf BC |
638 | } |
639 | ||
640 | return retval; | |
641 | } | |
642 | ||
9c6f7878 JK |
643 | /** |
644 | * ice_sriov_free_vf - Free VF memory after all references are dropped | |
645 | * @vf: pointer to VF to free | |
646 | * | |
647 | * Called by ice_put_vf through ice_release_vf once the last reference to a VF | |
648 | * structure has been dropped. | |
649 | */ | |
650 | static void ice_sriov_free_vf(struct ice_vf *vf) | |
651 | { | |
652 | mutex_destroy(&vf->cfg_lock); | |
653 | ||
654 | kfree_rcu(vf, rcu); | |
655 | } | |
656 | ||
fa4a15c8 JK |
657 | /** |
658 | * ice_sriov_clear_reset_state - clears VF Reset status register | |
659 | * @vf: the vf to configure | |
660 | */ | |
661 | static void ice_sriov_clear_reset_state(struct ice_vf *vf) | |
662 | { | |
663 | struct ice_hw *hw = &vf->pf->hw; | |
664 | ||
665 | /* Clear the reset status register so that VF immediately sees that | |
666 | * the device is resetting, even if hardware hasn't yet gotten around | |
667 | * to clearing VFGEN_RSTAT for us. | |
668 | */ | |
669 | wr32(hw, VFGEN_RSTAT(vf->vf_id), VIRTCHNL_VFR_INPROGRESS); | |
670 | } | |
671 | ||
9c6f7878 JK |
672 | /** |
673 | * ice_sriov_clear_mbx_register - clears SRIOV VF's mailbox registers | |
674 | * @vf: the vf to configure | |
675 | */ | |
676 | static void ice_sriov_clear_mbx_register(struct ice_vf *vf) | |
677 | { | |
678 | struct ice_pf *pf = vf->pf; | |
679 | ||
680 | wr32(&pf->hw, VF_MBX_ARQLEN(vf->vf_id), 0); | |
681 | wr32(&pf->hw, VF_MBX_ATQLEN(vf->vf_id), 0); | |
682 | } | |
683 | ||
684 | /** | |
685 | * ice_sriov_trigger_reset_register - trigger VF reset for SRIOV VF | |
686 | * @vf: pointer to VF structure | |
687 | * @is_vflr: true if reset occurred due to VFLR | |
688 | * | |
689 | * Trigger and cleanup after a VF reset for a SR-IOV VF. | |
690 | */ | |
691 | static void ice_sriov_trigger_reset_register(struct ice_vf *vf, bool is_vflr) | |
692 | { | |
693 | struct ice_pf *pf = vf->pf; | |
694 | u32 reg, reg_idx, bit_idx; | |
695 | unsigned int vf_abs_id, i; | |
696 | struct device *dev; | |
697 | struct ice_hw *hw; | |
698 | ||
699 | dev = ice_pf_to_dev(pf); | |
700 | hw = &pf->hw; | |
701 | vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id; | |
702 | ||
703 | /* In the case of a VFLR, HW has already reset the VF and we just need | |
704 | * to clean up. Otherwise we must first trigger the reset using the | |
705 | * VFRTRIG register. | |
706 | */ | |
707 | if (!is_vflr) { | |
708 | reg = rd32(hw, VPGEN_VFRTRIG(vf->vf_id)); | |
709 | reg |= VPGEN_VFRTRIG_VFSWR_M; | |
710 | wr32(hw, VPGEN_VFRTRIG(vf->vf_id), reg); | |
711 | } | |
712 | ||
713 | /* clear the VFLR bit in GLGEN_VFLRSTAT */ | |
714 | reg_idx = (vf_abs_id) / 32; | |
715 | bit_idx = (vf_abs_id) % 32; | |
716 | wr32(hw, GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); | |
717 | ice_flush(hw); | |
718 | ||
719 | wr32(hw, PF_PCI_CIAA, | |
720 | VF_DEVICE_STATUS | (vf_abs_id << PF_PCI_CIAA_VF_NUM_S)); | |
721 | for (i = 0; i < ICE_PCI_CIAD_WAIT_COUNT; i++) { | |
722 | reg = rd32(hw, PF_PCI_CIAD); | |
723 | /* no transactions pending so stop polling */ | |
724 | if ((reg & VF_TRANS_PENDING_M) == 0) | |
725 | break; | |
726 | ||
727 | dev_err(dev, "VF %u PCI transactions stuck\n", vf->vf_id); | |
728 | udelay(ICE_PCI_CIAD_WAIT_DELAY_US); | |
729 | } | |
730 | } | |
731 | ||
732 | /** | |
733 | * ice_sriov_poll_reset_status - poll SRIOV VF reset status | |
734 | * @vf: pointer to VF structure | |
735 | * | |
736 | * Returns true when reset is successful, else returns false | |
737 | */ | |
738 | static bool ice_sriov_poll_reset_status(struct ice_vf *vf) | |
739 | { | |
740 | struct ice_pf *pf = vf->pf; | |
741 | unsigned int i; | |
742 | u32 reg; | |
743 | ||
744 | for (i = 0; i < 10; i++) { | |
745 | /* VF reset requires driver to first reset the VF and then | |
746 | * poll the status register to make sure that the reset | |
747 | * completed successfully. | |
748 | */ | |
749 | reg = rd32(&pf->hw, VPGEN_VFRSTAT(vf->vf_id)); | |
750 | if (reg & VPGEN_VFRSTAT_VFRD_M) | |
751 | return true; | |
752 | ||
753 | /* only sleep if the reset is not done */ | |
754 | usleep_range(10, 20); | |
755 | } | |
756 | return false; | |
757 | } | |
758 | ||
759 | /** | |
760 | * ice_sriov_clear_reset_trigger - enable VF to access hardware | |
761 | * @vf: VF to enabled hardware access for | |
762 | */ | |
763 | static void ice_sriov_clear_reset_trigger(struct ice_vf *vf) | |
764 | { | |
765 | struct ice_hw *hw = &vf->pf->hw; | |
766 | u32 reg; | |
767 | ||
768 | reg = rd32(hw, VPGEN_VFRTRIG(vf->vf_id)); | |
769 | reg &= ~VPGEN_VFRTRIG_VFSWR_M; | |
770 | wr32(hw, VPGEN_VFRTRIG(vf->vf_id), reg); | |
771 | ice_flush(hw); | |
772 | } | |
773 | ||
774 | /** | |
5531bb85 JK |
775 | * ice_sriov_create_vsi - Create a new VSI for a VF |
776 | * @vf: VF to create the VSI for | |
9c6f7878 | 777 | * |
5531bb85 JK |
778 | * This is called by ice_vf_recreate_vsi to create the new VSI after the old |
779 | * VSI has been released. | |
9c6f7878 | 780 | */ |
5531bb85 | 781 | static int ice_sriov_create_vsi(struct ice_vf *vf) |
9c6f7878 | 782 | { |
5531bb85 | 783 | struct ice_vsi *vsi; |
9c6f7878 | 784 | |
5531bb85 JK |
785 | vsi = ice_vf_vsi_setup(vf); |
786 | if (!vsi) | |
9c6f7878 | 787 | return -ENOMEM; |
9c6f7878 JK |
788 | |
789 | return 0; | |
790 | } | |
791 | ||
792 | /** | |
793 | * ice_sriov_post_vsi_rebuild - tasks to do after the VF's VSI have been rebuilt | |
794 | * @vf: VF to perform tasks on | |
795 | */ | |
796 | static void ice_sriov_post_vsi_rebuild(struct ice_vf *vf) | |
797 | { | |
9c6f7878 JK |
798 | ice_ena_vf_mappings(vf); |
799 | wr32(&vf->pf->hw, VFGEN_RSTAT(vf->vf_id), VIRTCHNL_VFR_VFACTIVE); | |
800 | } | |
801 | ||
802 | static const struct ice_vf_ops ice_sriov_vf_ops = { | |
803 | .reset_type = ICE_VF_RESET, | |
804 | .free = ice_sriov_free_vf, | |
fa4a15c8 | 805 | .clear_reset_state = ice_sriov_clear_reset_state, |
9c6f7878 JK |
806 | .clear_mbx_register = ice_sriov_clear_mbx_register, |
807 | .trigger_reset_register = ice_sriov_trigger_reset_register, | |
808 | .poll_reset_status = ice_sriov_poll_reset_status, | |
809 | .clear_reset_trigger = ice_sriov_clear_reset_trigger, | |
537dfe06 | 810 | .irq_close = NULL, |
5531bb85 | 811 | .create_vsi = ice_sriov_create_vsi, |
9c6f7878 JK |
812 | .post_vsi_rebuild = ice_sriov_post_vsi_rebuild, |
813 | }; | |
814 | ||
ddf30f7f | 815 | /** |
3d5985a1 JK |
816 | * ice_create_vf_entries - Allocate and insert VF entries |
817 | * @pf: pointer to the PF structure | |
818 | * @num_vfs: the number of VFs to allocate | |
819 | * | |
820 | * Allocate new VF entries and insert them into the hash table. Set some | |
821 | * basic default fields for initializing the new VFs. | |
822 | * | |
823 | * After this function exits, the hash table will have num_vfs entries | |
824 | * inserted. | |
825 | * | |
826 | * Returns 0 on success or an integer error code on failure. | |
a06325a0 | 827 | */ |
3d5985a1 | 828 | static int ice_create_vf_entries(struct ice_pf *pf, u16 num_vfs) |
a06325a0 | 829 | { |
3d5985a1 | 830 | struct ice_vfs *vfs = &pf->vfs; |
c4c2c7db | 831 | struct ice_vf *vf; |
3d5985a1 JK |
832 | u16 vf_id; |
833 | int err; | |
834 | ||
835 | lockdep_assert_held(&vfs->table_lock); | |
836 | ||
837 | for (vf_id = 0; vf_id < num_vfs; vf_id++) { | |
838 | vf = kzalloc(sizeof(*vf), GFP_KERNEL); | |
839 | if (!vf) { | |
840 | err = -ENOMEM; | |
841 | goto err_free_entries; | |
842 | } | |
843 | kref_init(&vf->refcnt); | |
a06325a0 BC |
844 | |
845 | vf->pf = pf; | |
3d5985a1 JK |
846 | vf->vf_id = vf_id; |
847 | ||
9c6f7878 JK |
848 | /* set sriov vf ops for VFs created during SRIOV flow */ |
849 | vf->vf_ops = &ice_sriov_vf_ops; | |
850 | ||
b5dcff1f | 851 | ice_initialize_vf_entry(vf); |
ac19e03e | 852 | |
b5dcff1f | 853 | vf->vf_sw_id = pf->first_sw; |
a06325a0 | 854 | |
3d5985a1 JK |
855 | hash_add_rcu(vfs->table, &vf->entry, vf_id); |
856 | } | |
a06325a0 BC |
857 | |
858 | return 0; | |
3d5985a1 JK |
859 | |
860 | err_free_entries: | |
861 | ice_free_vf_entries(pf); | |
862 | return err; | |
a06325a0 BC |
863 | } |
864 | ||
865 | /** | |
866 | * ice_ena_vfs - enable VFs so they are ready to be used | |
ddf30f7f | 867 | * @pf: pointer to the PF structure |
a06325a0 | 868 | * @num_vfs: number of VFs to enable |
ddf30f7f | 869 | */ |
a06325a0 | 870 | static int ice_ena_vfs(struct ice_pf *pf, u16 num_vfs) |
ddf30f7f | 871 | { |
4015d11e | 872 | struct device *dev = ice_pf_to_dev(pf); |
ddf30f7f | 873 | struct ice_hw *hw = &pf->hw; |
a06325a0 | 874 | int ret; |
ddf30f7f AV |
875 | |
876 | /* Disable global interrupt 0 so we don't try to handle the VFLR. */ | |
cbe66bfe | 877 | wr32(hw, GLINT_DYN_CTL(pf->oicr_idx), |
ddf30f7f | 878 | ICE_ITR_NONE << GLINT_DYN_CTL_ITR_INDX_S); |
7e408e07 | 879 | set_bit(ICE_OICR_INTR_DIS, pf->state); |
ddf30f7f AV |
880 | ice_flush(hw); |
881 | ||
a06325a0 | 882 | ret = pci_enable_sriov(pf->pdev, num_vfs); |
3d5985a1 | 883 | if (ret) |
ddf30f7f | 884 | goto err_unroll_intr; |
a06325a0 | 885 | |
3d5985a1 | 886 | mutex_lock(&pf->vfs.table_lock); |
ddf30f7f | 887 | |
94ab2488 JK |
888 | ret = ice_set_per_vf_res(pf, num_vfs); |
889 | if (ret) { | |
890 | dev_err(dev, "Not enough resources for %d VFs, err %d. Try with fewer number of VFs\n", | |
891 | num_vfs, ret); | |
916c7fdf BC |
892 | goto err_unroll_sriov; |
893 | } | |
894 | ||
3d5985a1 JK |
895 | ret = ice_create_vf_entries(pf, num_vfs); |
896 | if (ret) { | |
897 | dev_err(dev, "Failed to allocate VF entries for %d VFs\n", | |
898 | num_vfs); | |
899 | goto err_unroll_sriov; | |
900 | } | |
ddf30f7f | 901 | |
94ab2488 JK |
902 | ret = ice_start_vfs(pf); |
903 | if (ret) { | |
904 | dev_err(dev, "Failed to start %d VFs, err %d\n", num_vfs, ret); | |
916c7fdf | 905 | ret = -EAGAIN; |
3d5985a1 | 906 | goto err_unroll_vf_entries; |
72f9c203 | 907 | } |
ddf30f7f | 908 | |
7e408e07 | 909 | clear_bit(ICE_VF_DIS, pf->state); |
1c54c839 | 910 | |
8702ed0b | 911 | ret = ice_eswitch_configure(pf); |
2b369448 JK |
912 | if (ret) { |
913 | dev_err(dev, "Failed to configure eswitch, err %d\n", ret); | |
1c54c839 | 914 | goto err_unroll_sriov; |
2b369448 | 915 | } |
1c54c839 | 916 | |
2657e16d PG |
917 | /* rearm global interrupts */ |
918 | if (test_and_clear_bit(ICE_OICR_INTR_DIS, pf->state)) | |
919 | ice_irq_dynamic_ena(hw, NULL, NULL); | |
920 | ||
3d5985a1 JK |
921 | mutex_unlock(&pf->vfs.table_lock); |
922 | ||
916c7fdf | 923 | return 0; |
ddf30f7f | 924 | |
3d5985a1 JK |
925 | err_unroll_vf_entries: |
926 | ice_free_vf_entries(pf); | |
ddf30f7f | 927 | err_unroll_sriov: |
3d5985a1 | 928 | mutex_unlock(&pf->vfs.table_lock); |
ddf30f7f AV |
929 | pci_disable_sriov(pf->pdev); |
930 | err_unroll_intr: | |
931 | /* rearm interrupts here */ | |
932 | ice_irq_dynamic_ena(hw, NULL, NULL); | |
7e408e07 | 933 | clear_bit(ICE_OICR_INTR_DIS, pf->state); |
ddf30f7f AV |
934 | return ret; |
935 | } | |
936 | ||
ddf30f7f AV |
937 | /** |
938 | * ice_pci_sriov_ena - Enable or change number of VFs | |
939 | * @pf: pointer to the PF structure | |
940 | * @num_vfs: number of VFs to allocate | |
02337f1f BC |
941 | * |
942 | * Returns 0 on success and negative on failure | |
ddf30f7f AV |
943 | */ |
944 | static int ice_pci_sriov_ena(struct ice_pf *pf, int num_vfs) | |
945 | { | |
946 | int pre_existing_vfs = pci_num_vf(pf->pdev); | |
4015d11e | 947 | struct device *dev = ice_pf_to_dev(pf); |
ddf30f7f AV |
948 | int err; |
949 | ||
ddf30f7f AV |
950 | if (pre_existing_vfs && pre_existing_vfs != num_vfs) |
951 | ice_free_vfs(pf); | |
952 | else if (pre_existing_vfs && pre_existing_vfs == num_vfs) | |
02337f1f | 953 | return 0; |
ddf30f7f | 954 | |
000773c0 | 955 | if (num_vfs > pf->vfs.num_supported) { |
ddf30f7f | 956 | dev_err(dev, "Can't enable %d VFs, max VFs supported is %d\n", |
000773c0 | 957 | num_vfs, pf->vfs.num_supported); |
dced8ad3 | 958 | return -EOPNOTSUPP; |
ddf30f7f AV |
959 | } |
960 | ||
a06325a0 BC |
961 | dev_info(dev, "Enabling %d VFs\n", num_vfs); |
962 | err = ice_ena_vfs(pf, num_vfs); | |
ddf30f7f AV |
963 | if (err) { |
964 | dev_err(dev, "Failed to enable SR-IOV: %d\n", err); | |
965 | return err; | |
966 | } | |
967 | ||
968 | set_bit(ICE_FLAG_SRIOV_ENA, pf->flags); | |
02337f1f BC |
969 | return 0; |
970 | } | |
971 | ||
972 | /** | |
973 | * ice_check_sriov_allowed - check if SR-IOV is allowed based on various checks | |
974 | * @pf: PF to enabled SR-IOV on | |
975 | */ | |
976 | static int ice_check_sriov_allowed(struct ice_pf *pf) | |
977 | { | |
978 | struct device *dev = ice_pf_to_dev(pf); | |
979 | ||
980 | if (!test_bit(ICE_FLAG_SRIOV_CAPABLE, pf->flags)) { | |
981 | dev_err(dev, "This device is not capable of SR-IOV\n"); | |
982 | return -EOPNOTSUPP; | |
983 | } | |
984 | ||
985 | if (ice_is_safe_mode(pf)) { | |
986 | dev_err(dev, "SR-IOV cannot be configured - Device is in Safe Mode\n"); | |
987 | return -EOPNOTSUPP; | |
988 | } | |
989 | ||
990 | if (!ice_pf_state_is_nominal(pf)) { | |
991 | dev_err(dev, "Cannot enable SR-IOV, device not ready\n"); | |
992 | return -EBUSY; | |
993 | } | |
994 | ||
995 | return 0; | |
ddf30f7f AV |
996 | } |
997 | ||
998 | /** | |
999 | * ice_sriov_configure - Enable or change number of VFs via sysfs | |
1000 | * @pdev: pointer to a pci_dev structure | |
02337f1f | 1001 | * @num_vfs: number of VFs to allocate or 0 to free VFs |
ddf30f7f | 1002 | * |
02337f1f BC |
1003 | * This function is called when the user updates the number of VFs in sysfs. On |
1004 | * success return whatever num_vfs was set to by the caller. Return negative on | |
1005 | * failure. | |
ddf30f7f AV |
1006 | */ |
1007 | int ice_sriov_configure(struct pci_dev *pdev, int num_vfs) | |
1008 | { | |
1009 | struct ice_pf *pf = pci_get_drvdata(pdev); | |
4015d11e | 1010 | struct device *dev = ice_pf_to_dev(pf); |
02337f1f | 1011 | int err; |
ddf30f7f | 1012 | |
02337f1f BC |
1013 | err = ice_check_sriov_allowed(pf); |
1014 | if (err) | |
1015 | return err; | |
462acf6a | 1016 | |
02337f1f BC |
1017 | if (!num_vfs) { |
1018 | if (!pci_vfs_assigned(pdev)) { | |
1019 | ice_free_vfs(pf); | |
b668f4cd | 1020 | ice_mbx_deinit_snapshot(&pf->hw); |
df006dd4 DE |
1021 | if (pf->lag) |
1022 | ice_enable_lag(pf->lag); | |
02337f1f BC |
1023 | return 0; |
1024 | } | |
ddf30f7f | 1025 | |
4015d11e | 1026 | dev_err(dev, "can't free VFs because some are assigned to VMs.\n"); |
ddf30f7f AV |
1027 | return -EBUSY; |
1028 | } | |
1029 | ||
2ccc1c1c TN |
1030 | err = ice_mbx_init_snapshot(&pf->hw, num_vfs); |
1031 | if (err) | |
1032 | return err; | |
0891c896 | 1033 | |
02337f1f | 1034 | err = ice_pci_sriov_ena(pf, num_vfs); |
0891c896 VS |
1035 | if (err) { |
1036 | ice_mbx_deinit_snapshot(&pf->hw); | |
02337f1f | 1037 | return err; |
0891c896 | 1038 | } |
02337f1f | 1039 | |
df006dd4 DE |
1040 | if (pf->lag) |
1041 | ice_disable_lag(pf->lag); | |
02337f1f | 1042 | return num_vfs; |
ddf30f7f | 1043 | } |
007676b4 AV |
1044 | |
1045 | /** | |
1046 | * ice_process_vflr_event - Free VF resources via IRQ calls | |
1047 | * @pf: pointer to the PF structure | |
1048 | * | |
df17b7e0 | 1049 | * called from the VFLR IRQ handler to |
007676b4 AV |
1050 | * free up VF resources and state variables |
1051 | */ | |
1052 | void ice_process_vflr_event(struct ice_pf *pf) | |
1053 | { | |
1054 | struct ice_hw *hw = &pf->hw; | |
c4c2c7db JK |
1055 | struct ice_vf *vf; |
1056 | unsigned int bkt; | |
007676b4 AV |
1057 | u32 reg; |
1058 | ||
7e408e07 | 1059 | if (!test_and_clear_bit(ICE_VFLR_EVENT_PENDING, pf->state) || |
fb916db1 | 1060 | !ice_has_vfs(pf)) |
007676b4 AV |
1061 | return; |
1062 | ||
3d5985a1 | 1063 | mutex_lock(&pf->vfs.table_lock); |
c4c2c7db | 1064 | ice_for_each_vf(pf, bkt, vf) { |
007676b4 AV |
1065 | u32 reg_idx, bit_idx; |
1066 | ||
c4c2c7db JK |
1067 | reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32; |
1068 | bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32; | |
007676b4 AV |
1069 | /* read GLGEN_VFLRSTAT register to find out the flr VFs */ |
1070 | reg = rd32(hw, GLGEN_VFLRSTAT(reg_idx)); | |
f5f085c0 | 1071 | if (reg & BIT(bit_idx)) |
007676b4 | 1072 | /* GLGEN_VFLRSTAT bit will be cleared in ice_reset_vf */ |
f5f085c0 | 1073 | ice_reset_vf(vf, ICE_VF_RESET_VFLR | ICE_VF_RESET_LOCK); |
007676b4 | 1074 | } |
3d5985a1 | 1075 | mutex_unlock(&pf->vfs.table_lock); |
007676b4 | 1076 | } |
7c710869 | 1077 | |
2309ae38 BC |
1078 | /** |
1079 | * ice_get_vf_from_pfq - get the VF who owns the PF space queue passed in | |
1080 | * @pf: PF used to index all VFs | |
1081 | * @pfq: queue index relative to the PF's function space | |
1082 | * | |
1083 | * If no VF is found who owns the pfq then return NULL, otherwise return a | |
1084 | * pointer to the VF who owns the pfq | |
3d5985a1 JK |
1085 | * |
1086 | * If this function returns non-NULL, it acquires a reference count of the VF | |
1087 | * structure. The caller is responsible for calling ice_put_vf() to drop this | |
1088 | * reference. | |
2309ae38 BC |
1089 | */ |
1090 | static struct ice_vf *ice_get_vf_from_pfq(struct ice_pf *pf, u16 pfq) | |
1091 | { | |
c4c2c7db JK |
1092 | struct ice_vf *vf; |
1093 | unsigned int bkt; | |
2309ae38 | 1094 | |
3d5985a1 JK |
1095 | rcu_read_lock(); |
1096 | ice_for_each_vf_rcu(pf, bkt, vf) { | |
2309ae38 BC |
1097 | struct ice_vsi *vsi; |
1098 | u16 rxq_idx; | |
1099 | ||
c5afbe99 | 1100 | vsi = ice_get_vf_vsi(vf); |
baeb705f JK |
1101 | if (!vsi) |
1102 | continue; | |
2309ae38 BC |
1103 | |
1104 | ice_for_each_rxq(vsi, rxq_idx) | |
3d5985a1 JK |
1105 | if (vsi->rxq_map[rxq_idx] == pfq) { |
1106 | struct ice_vf *found; | |
1107 | ||
1108 | if (kref_get_unless_zero(&vf->refcnt)) | |
1109 | found = vf; | |
1110 | else | |
1111 | found = NULL; | |
1112 | rcu_read_unlock(); | |
1113 | return found; | |
1114 | } | |
2309ae38 | 1115 | } |
3d5985a1 | 1116 | rcu_read_unlock(); |
2309ae38 BC |
1117 | |
1118 | return NULL; | |
1119 | } | |
1120 | ||
1121 | /** | |
1122 | * ice_globalq_to_pfq - convert from global queue index to PF space queue index | |
1123 | * @pf: PF used for conversion | |
1124 | * @globalq: global queue index used to convert to PF space queue index | |
1125 | */ | |
1126 | static u32 ice_globalq_to_pfq(struct ice_pf *pf, u32 globalq) | |
1127 | { | |
1128 | return globalq - pf->hw.func_caps.common_cap.rxq_first_id; | |
1129 | } | |
1130 | ||
1131 | /** | |
1132 | * ice_vf_lan_overflow_event - handle LAN overflow event for a VF | |
1133 | * @pf: PF that the LAN overflow event happened on | |
1134 | * @event: structure holding the event information for the LAN overflow event | |
1135 | * | |
1136 | * Determine if the LAN overflow event was caused by a VF queue. If it was not | |
1137 | * caused by a VF, do nothing. If a VF caused this LAN overflow event trigger a | |
1138 | * reset on the offending VF. | |
1139 | */ | |
1140 | void | |
1141 | ice_vf_lan_overflow_event(struct ice_pf *pf, struct ice_rq_event_info *event) | |
1142 | { | |
1143 | u32 gldcb_rtctq, queue; | |
1144 | struct ice_vf *vf; | |
1145 | ||
1146 | gldcb_rtctq = le32_to_cpu(event->desc.params.lan_overflow.prtdcb_ruptq); | |
1147 | dev_dbg(ice_pf_to_dev(pf), "GLDCB_RTCTQ: 0x%08x\n", gldcb_rtctq); | |
1148 | ||
1149 | /* event returns device global Rx queue number */ | |
1150 | queue = (gldcb_rtctq & GLDCB_RTCTQ_RXQNUM_M) >> | |
1151 | GLDCB_RTCTQ_RXQNUM_S; | |
1152 | ||
1153 | vf = ice_get_vf_from_pfq(pf, ice_globalq_to_pfq(pf, queue)); | |
1154 | if (!vf) | |
1155 | return; | |
1156 | ||
f5f085c0 | 1157 | ice_reset_vf(vf, ICE_VF_RESET_NOTIFY | ICE_VF_RESET_LOCK); |
3d5985a1 | 1158 | ice_put_vf(vf); |
2309ae38 BC |
1159 | } |
1160 | ||
1071a835 | 1161 | /** |
bf93bf79 JK |
1162 | * ice_set_vf_spoofchk |
1163 | * @netdev: network interface device structure | |
1164 | * @vf_id: VF identifier | |
1165 | * @ena: flag to enable or disable feature | |
1071a835 | 1166 | * |
bf93bf79 | 1167 | * Enable or disable VF spoof checking |
1071a835 | 1168 | */ |
bf93bf79 | 1169 | int ice_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool ena) |
1071a835 | 1170 | { |
bf93bf79 JK |
1171 | struct ice_netdev_priv *np = netdev_priv(netdev); |
1172 | struct ice_pf *pf = np->vsi->back; | |
1173 | struct ice_vsi *vf_vsi; | |
4015d11e | 1174 | struct device *dev; |
bf93bf79 | 1175 | struct ice_vf *vf; |
1071a835 AV |
1176 | int ret; |
1177 | ||
bf93bf79 | 1178 | dev = ice_pf_to_dev(pf); |
1071a835 | 1179 | |
bf93bf79 JK |
1180 | vf = ice_get_vf_by_id(pf, vf_id); |
1181 | if (!vf) | |
1182 | return -EINVAL; | |
1071a835 | 1183 | |
bf93bf79 JK |
1184 | ret = ice_check_vf_ready_for_cfg(vf); |
1185 | if (ret) | |
1186 | goto out_put_vf; | |
1071a835 | 1187 | |
bf93bf79 JK |
1188 | vf_vsi = ice_get_vf_vsi(vf); |
1189 | if (!vf_vsi) { | |
1190 | netdev_err(netdev, "VSI %d for VF %d is null\n", | |
1191 | vf->lan_vsi_idx, vf->vf_id); | |
1192 | ret = -EINVAL; | |
1193 | goto out_put_vf; | |
f1ef73f5 AA |
1194 | } |
1195 | ||
bf93bf79 JK |
1196 | if (vf_vsi->type != ICE_VSI_VF) { |
1197 | netdev_err(netdev, "Type %d of VSI %d for VF %d is no ICE_VSI_VF\n", | |
1198 | vf_vsi->type, vf_vsi->vsi_num, vf->vf_id); | |
1199 | ret = -ENODEV; | |
1200 | goto out_put_vf; | |
cc71de8f | 1201 | } |
1071a835 | 1202 | |
bf93bf79 JK |
1203 | if (ena == vf->spoofchk) { |
1204 | dev_dbg(dev, "VF spoofchk already %s\n", ena ? "ON" : "OFF"); | |
1205 | ret = 0; | |
1206 | goto out_put_vf; | |
1071a835 AV |
1207 | } |
1208 | ||
bf93bf79 JK |
1209 | ret = ice_vsi_apply_spoofchk(vf_vsi, ena); |
1210 | if (ret) | |
1211 | dev_err(dev, "Failed to set spoofchk %s for VF %d VSI %d\n error %d\n", | |
1212 | ena ? "ON" : "OFF", vf->vf_id, vf_vsi->vsi_num, ret); | |
1213 | else | |
1214 | vf->spoofchk = ena; | |
1071a835 | 1215 | |
bf93bf79 JK |
1216 | out_put_vf: |
1217 | ice_put_vf(vf); | |
1071a835 AV |
1218 | return ret; |
1219 | } | |
1220 | ||
7c710869 AV |
1221 | /** |
1222 | * ice_get_vf_cfg | |
1223 | * @netdev: network interface device structure | |
1224 | * @vf_id: VF identifier | |
1225 | * @ivi: VF configuration structure | |
1226 | * | |
1227 | * return VF configuration | |
1228 | */ | |
c8b7abdd BA |
1229 | int |
1230 | ice_get_vf_cfg(struct net_device *netdev, int vf_id, struct ifla_vf_info *ivi) | |
7c710869 | 1231 | { |
4c66d227 | 1232 | struct ice_pf *pf = ice_netdev_to_pf(netdev); |
7c710869 | 1233 | struct ice_vf *vf; |
fb916db1 | 1234 | int ret; |
7c710869 | 1235 | |
fb916db1 JK |
1236 | vf = ice_get_vf_by_id(pf, vf_id); |
1237 | if (!vf) | |
7c710869 | 1238 | return -EINVAL; |
7c710869 | 1239 | |
fb916db1 JK |
1240 | ret = ice_check_vf_ready_for_cfg(vf); |
1241 | if (ret) | |
3d5985a1 | 1242 | goto out_put_vf; |
7c710869 AV |
1243 | |
1244 | ivi->vf = vf_id; | |
e0645311 | 1245 | ether_addr_copy(ivi->mac, vf->hw_lan_addr); |
7c710869 AV |
1246 | |
1247 | /* VF configuration for VLAN and applicable QoS */ | |
a19d7f7f BC |
1248 | ivi->vlan = ice_vf_get_port_vlan_id(vf); |
1249 | ivi->qos = ice_vf_get_port_vlan_prio(vf); | |
cbc8b564 BC |
1250 | if (ice_vf_is_port_vlan_ena(vf)) |
1251 | ivi->vlan_proto = cpu_to_be16(ice_vf_get_port_vlan_tpid(vf)); | |
7c710869 AV |
1252 | |
1253 | ivi->trusted = vf->trusted; | |
1254 | ivi->spoofchk = vf->spoofchk; | |
1255 | if (!vf->link_forced) | |
1256 | ivi->linkstate = IFLA_VF_LINK_STATE_AUTO; | |
1257 | else if (vf->link_up) | |
1258 | ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE; | |
1259 | else | |
1260 | ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE; | |
4ecc8633 BC |
1261 | ivi->max_tx_rate = vf->max_tx_rate; |
1262 | ivi->min_tx_rate = vf->min_tx_rate; | |
3d5985a1 JK |
1263 | |
1264 | out_put_vf: | |
1265 | ice_put_vf(vf); | |
1266 | return ret; | |
7c710869 AV |
1267 | } |
1268 | ||
7c710869 AV |
1269 | /** |
1270 | * ice_set_vf_mac | |
1271 | * @netdev: network interface device structure | |
1272 | * @vf_id: VF identifier | |
f9867df6 | 1273 | * @mac: MAC address |
7c710869 | 1274 | * |
f9867df6 | 1275 | * program VF MAC address |
7c710869 AV |
1276 | */ |
1277 | int ice_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac) | |
1278 | { | |
4c66d227 | 1279 | struct ice_pf *pf = ice_netdev_to_pf(netdev); |
7c710869 | 1280 | struct ice_vf *vf; |
c54d209c | 1281 | int ret; |
7c710869 | 1282 | |
f109603a | 1283 | if (is_multicast_ether_addr(mac)) { |
7c710869 AV |
1284 | netdev_err(netdev, "%pM not a valid unicast address\n", mac); |
1285 | return -EINVAL; | |
1286 | } | |
1287 | ||
fb916db1 JK |
1288 | vf = ice_get_vf_by_id(pf, vf_id); |
1289 | if (!vf) | |
1290 | return -EINVAL; | |
1291 | ||
47ebc7b0 | 1292 | /* nothing left to do, unicast MAC already set */ |
e0645311 JK |
1293 | if (ether_addr_equal(vf->dev_lan_addr, mac) && |
1294 | ether_addr_equal(vf->hw_lan_addr, mac)) { | |
3d5985a1 JK |
1295 | ret = 0; |
1296 | goto out_put_vf; | |
1297 | } | |
47ebc7b0 | 1298 | |
c54d209c BC |
1299 | ret = ice_check_vf_ready_for_cfg(vf); |
1300 | if (ret) | |
3d5985a1 | 1301 | goto out_put_vf; |
c54d209c | 1302 | |
e6ba5273 BC |
1303 | mutex_lock(&vf->cfg_lock); |
1304 | ||
f109603a BC |
1305 | /* VF is notified of its new MAC via the PF's response to the |
1306 | * VIRTCHNL_OP_GET_VF_RESOURCES message after the VF has been reset | |
7c710869 | 1307 | */ |
e0645311 JK |
1308 | ether_addr_copy(vf->dev_lan_addr, mac); |
1309 | ether_addr_copy(vf->hw_lan_addr, mac); | |
f109603a BC |
1310 | if (is_zero_ether_addr(mac)) { |
1311 | /* VF will send VIRTCHNL_OP_ADD_ETH_ADDR message with its MAC */ | |
1312 | vf->pf_set_mac = false; | |
1313 | netdev_info(netdev, "Removing MAC on VF %d. VF driver will be reinitialized\n", | |
1314 | vf->vf_id); | |
1315 | } else { | |
1316 | /* PF will add MAC rule for the VF */ | |
1317 | vf->pf_set_mac = true; | |
1318 | netdev_info(netdev, "Setting MAC %pM on VF %d. VF driver will be reinitialized\n", | |
1319 | mac, vf_id); | |
1320 | } | |
7c710869 | 1321 | |
9dbb33da | 1322 | ice_reset_vf(vf, ICE_VF_RESET_NOTIFY); |
e6ba5273 | 1323 | mutex_unlock(&vf->cfg_lock); |
3d5985a1 JK |
1324 | |
1325 | out_put_vf: | |
1326 | ice_put_vf(vf); | |
1327 | return ret; | |
7c710869 AV |
1328 | } |
1329 | ||
1330 | /** | |
1331 | * ice_set_vf_trust | |
1332 | * @netdev: network interface device structure | |
1333 | * @vf_id: VF identifier | |
1334 | * @trusted: Boolean value to enable/disable trusted VF | |
1335 | * | |
1336 | * Enable or disable a given VF as trusted | |
1337 | */ | |
1338 | int ice_set_vf_trust(struct net_device *netdev, int vf_id, bool trusted) | |
1339 | { | |
4c66d227 | 1340 | struct ice_pf *pf = ice_netdev_to_pf(netdev); |
7c710869 | 1341 | struct ice_vf *vf; |
c54d209c | 1342 | int ret; |
7c710869 | 1343 | |
1281b745 WD |
1344 | if (ice_is_eswitch_mode_switchdev(pf)) { |
1345 | dev_info(ice_pf_to_dev(pf), "Trusted VF is forbidden in switchdev mode\n"); | |
1346 | return -EOPNOTSUPP; | |
1347 | } | |
1348 | ||
fb916db1 JK |
1349 | vf = ice_get_vf_by_id(pf, vf_id); |
1350 | if (!vf) | |
7c710869 | 1351 | return -EINVAL; |
7c710869 | 1352 | |
c54d209c BC |
1353 | ret = ice_check_vf_ready_for_cfg(vf); |
1354 | if (ret) | |
3d5985a1 | 1355 | goto out_put_vf; |
7c710869 AV |
1356 | |
1357 | /* Check if already trusted */ | |
3d5985a1 JK |
1358 | if (trusted == vf->trusted) { |
1359 | ret = 0; | |
1360 | goto out_put_vf; | |
1361 | } | |
7c710869 | 1362 | |
e6ba5273 BC |
1363 | mutex_lock(&vf->cfg_lock); |
1364 | ||
7c710869 | 1365 | vf->trusted = trusted; |
9dbb33da | 1366 | ice_reset_vf(vf, ICE_VF_RESET_NOTIFY); |
19cce2c6 | 1367 | dev_info(ice_pf_to_dev(pf), "VF %u is now %strusted\n", |
7c710869 AV |
1368 | vf_id, trusted ? "" : "un"); |
1369 | ||
e6ba5273 BC |
1370 | mutex_unlock(&vf->cfg_lock); |
1371 | ||
3d5985a1 JK |
1372 | out_put_vf: |
1373 | ice_put_vf(vf); | |
1374 | return ret; | |
7c710869 AV |
1375 | } |
1376 | ||
1377 | /** | |
1378 | * ice_set_vf_link_state | |
1379 | * @netdev: network interface device structure | |
1380 | * @vf_id: VF identifier | |
1381 | * @link_state: required link state | |
1382 | * | |
1383 | * Set VF's link state, irrespective of physical link state status | |
1384 | */ | |
1385 | int ice_set_vf_link_state(struct net_device *netdev, int vf_id, int link_state) | |
1386 | { | |
4c66d227 | 1387 | struct ice_pf *pf = ice_netdev_to_pf(netdev); |
7c710869 | 1388 | struct ice_vf *vf; |
c54d209c | 1389 | int ret; |
7c710869 | 1390 | |
fb916db1 JK |
1391 | vf = ice_get_vf_by_id(pf, vf_id); |
1392 | if (!vf) | |
7c710869 | 1393 | return -EINVAL; |
7c710869 | 1394 | |
c54d209c BC |
1395 | ret = ice_check_vf_ready_for_cfg(vf); |
1396 | if (ret) | |
3d5985a1 | 1397 | goto out_put_vf; |
7c710869 | 1398 | |
7c710869 AV |
1399 | switch (link_state) { |
1400 | case IFLA_VF_LINK_STATE_AUTO: | |
1401 | vf->link_forced = false; | |
7c710869 AV |
1402 | break; |
1403 | case IFLA_VF_LINK_STATE_ENABLE: | |
1404 | vf->link_forced = true; | |
1405 | vf->link_up = true; | |
1406 | break; | |
1407 | case IFLA_VF_LINK_STATE_DISABLE: | |
1408 | vf->link_forced = true; | |
1409 | vf->link_up = false; | |
1410 | break; | |
1411 | default: | |
3d5985a1 JK |
1412 | ret = -EINVAL; |
1413 | goto out_put_vf; | |
7c710869 AV |
1414 | } |
1415 | ||
26a91525 | 1416 | ice_vc_notify_vf_link_state(vf); |
7c710869 | 1417 | |
3d5985a1 JK |
1418 | out_put_vf: |
1419 | ice_put_vf(vf); | |
1420 | return ret; | |
7c710869 | 1421 | } |
730fdea4 | 1422 | |
4ecc8633 BC |
1423 | /** |
1424 | * ice_calc_all_vfs_min_tx_rate - calculate cumulative min Tx rate on all VFs | |
1425 | * @pf: PF associated with VFs | |
1426 | */ | |
1427 | static int ice_calc_all_vfs_min_tx_rate(struct ice_pf *pf) | |
1428 | { | |
c4c2c7db JK |
1429 | struct ice_vf *vf; |
1430 | unsigned int bkt; | |
1431 | int rate = 0; | |
4ecc8633 | 1432 | |
3d5985a1 JK |
1433 | rcu_read_lock(); |
1434 | ice_for_each_vf_rcu(pf, bkt, vf) | |
c4c2c7db | 1435 | rate += vf->min_tx_rate; |
3d5985a1 | 1436 | rcu_read_unlock(); |
4ecc8633 BC |
1437 | |
1438 | return rate; | |
1439 | } | |
1440 | ||
1441 | /** | |
1442 | * ice_min_tx_rate_oversubscribed - check if min Tx rate causes oversubscription | |
1443 | * @vf: VF trying to configure min_tx_rate | |
1444 | * @min_tx_rate: min Tx rate in Mbps | |
1445 | * | |
1446 | * Check if the min_tx_rate being passed in will cause oversubscription of total | |
1447 | * min_tx_rate based on the current link speed and all other VFs configured | |
1448 | * min_tx_rate | |
1449 | * | |
1450 | * Return true if the passed min_tx_rate would cause oversubscription, else | |
1451 | * return false | |
1452 | */ | |
1453 | static bool | |
1454 | ice_min_tx_rate_oversubscribed(struct ice_vf *vf, int min_tx_rate) | |
1455 | { | |
baeb705f JK |
1456 | struct ice_vsi *vsi = ice_get_vf_vsi(vf); |
1457 | int all_vfs_min_tx_rate; | |
1458 | int link_speed_mbps; | |
1459 | ||
1460 | if (WARN_ON(!vsi)) | |
1461 | return false; | |
1462 | ||
1463 | link_speed_mbps = ice_get_link_speed_mbps(vsi); | |
1464 | all_vfs_min_tx_rate = ice_calc_all_vfs_min_tx_rate(vf->pf); | |
4ecc8633 BC |
1465 | |
1466 | /* this VF's previous rate is being overwritten */ | |
1467 | all_vfs_min_tx_rate -= vf->min_tx_rate; | |
1468 | ||
1469 | if (all_vfs_min_tx_rate + min_tx_rate > link_speed_mbps) { | |
1470 | dev_err(ice_pf_to_dev(vf->pf), "min_tx_rate of %d Mbps on VF %u would cause oversubscription of %d Mbps based on the current link speed %d Mbps\n", | |
1471 | min_tx_rate, vf->vf_id, | |
1472 | all_vfs_min_tx_rate + min_tx_rate - link_speed_mbps, | |
1473 | link_speed_mbps); | |
1474 | return true; | |
1475 | } | |
1476 | ||
1477 | return false; | |
1478 | } | |
1479 | ||
1480 | /** | |
1481 | * ice_set_vf_bw - set min/max VF bandwidth | |
1482 | * @netdev: network interface device structure | |
1483 | * @vf_id: VF identifier | |
1484 | * @min_tx_rate: Minimum Tx rate in Mbps | |
1485 | * @max_tx_rate: Maximum Tx rate in Mbps | |
1486 | */ | |
1487 | int | |
1488 | ice_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate, | |
1489 | int max_tx_rate) | |
1490 | { | |
1491 | struct ice_pf *pf = ice_netdev_to_pf(netdev); | |
1492 | struct ice_vsi *vsi; | |
1493 | struct device *dev; | |
1494 | struct ice_vf *vf; | |
1495 | int ret; | |
1496 | ||
1497 | dev = ice_pf_to_dev(pf); | |
fb916db1 JK |
1498 | |
1499 | vf = ice_get_vf_by_id(pf, vf_id); | |
1500 | if (!vf) | |
4ecc8633 BC |
1501 | return -EINVAL; |
1502 | ||
4ecc8633 BC |
1503 | ret = ice_check_vf_ready_for_cfg(vf); |
1504 | if (ret) | |
3d5985a1 | 1505 | goto out_put_vf; |
4ecc8633 BC |
1506 | |
1507 | vsi = ice_get_vf_vsi(vf); | |
baeb705f JK |
1508 | if (!vsi) { |
1509 | ret = -EINVAL; | |
1510 | goto out_put_vf; | |
1511 | } | |
4ecc8633 | 1512 | |
4ecc8633 BC |
1513 | if (min_tx_rate && ice_is_dcb_active(pf)) { |
1514 | dev_err(dev, "DCB on PF is currently enabled. VF min Tx rate limiting not allowed on this PF.\n"); | |
3d5985a1 JK |
1515 | ret = -EOPNOTSUPP; |
1516 | goto out_put_vf; | |
4ecc8633 BC |
1517 | } |
1518 | ||
3d5985a1 JK |
1519 | if (ice_min_tx_rate_oversubscribed(vf, min_tx_rate)) { |
1520 | ret = -EINVAL; | |
1521 | goto out_put_vf; | |
1522 | } | |
4ecc8633 BC |
1523 | |
1524 | if (vf->min_tx_rate != (unsigned int)min_tx_rate) { | |
1525 | ret = ice_set_min_bw_limit(vsi, (u64)min_tx_rate * 1000); | |
1526 | if (ret) { | |
1527 | dev_err(dev, "Unable to set min-tx-rate for VF %d\n", | |
1528 | vf->vf_id); | |
3d5985a1 | 1529 | goto out_put_vf; |
4ecc8633 BC |
1530 | } |
1531 | ||
1532 | vf->min_tx_rate = min_tx_rate; | |
1533 | } | |
1534 | ||
1535 | if (vf->max_tx_rate != (unsigned int)max_tx_rate) { | |
1536 | ret = ice_set_max_bw_limit(vsi, (u64)max_tx_rate * 1000); | |
1537 | if (ret) { | |
1538 | dev_err(dev, "Unable to set max-tx-rate for VF %d\n", | |
1539 | vf->vf_id); | |
3d5985a1 | 1540 | goto out_put_vf; |
4ecc8633 BC |
1541 | } |
1542 | ||
1543 | vf->max_tx_rate = max_tx_rate; | |
1544 | } | |
1545 | ||
3d5985a1 JK |
1546 | out_put_vf: |
1547 | ice_put_vf(vf); | |
1548 | return ret; | |
4ecc8633 BC |
1549 | } |
1550 | ||
730fdea4 JB |
1551 | /** |
1552 | * ice_get_vf_stats - populate some stats for the VF | |
1553 | * @netdev: the netdev of the PF | |
1554 | * @vf_id: the host OS identifier (0-255) | |
1555 | * @vf_stats: pointer to the OS memory to be initialized | |
1556 | */ | |
1557 | int ice_get_vf_stats(struct net_device *netdev, int vf_id, | |
1558 | struct ifla_vf_stats *vf_stats) | |
1559 | { | |
1560 | struct ice_pf *pf = ice_netdev_to_pf(netdev); | |
1561 | struct ice_eth_stats *stats; | |
1562 | struct ice_vsi *vsi; | |
1563 | struct ice_vf *vf; | |
c54d209c | 1564 | int ret; |
730fdea4 | 1565 | |
fb916db1 JK |
1566 | vf = ice_get_vf_by_id(pf, vf_id); |
1567 | if (!vf) | |
730fdea4 JB |
1568 | return -EINVAL; |
1569 | ||
c54d209c BC |
1570 | ret = ice_check_vf_ready_for_cfg(vf); |
1571 | if (ret) | |
3d5985a1 | 1572 | goto out_put_vf; |
730fdea4 | 1573 | |
c5afbe99 | 1574 | vsi = ice_get_vf_vsi(vf); |
3d5985a1 JK |
1575 | if (!vsi) { |
1576 | ret = -EINVAL; | |
1577 | goto out_put_vf; | |
1578 | } | |
730fdea4 JB |
1579 | |
1580 | ice_update_eth_stats(vsi); | |
1581 | stats = &vsi->eth_stats; | |
1582 | ||
1583 | memset(vf_stats, 0, sizeof(*vf_stats)); | |
1584 | ||
1585 | vf_stats->rx_packets = stats->rx_unicast + stats->rx_broadcast + | |
1586 | stats->rx_multicast; | |
1587 | vf_stats->tx_packets = stats->tx_unicast + stats->tx_broadcast + | |
1588 | stats->tx_multicast; | |
1589 | vf_stats->rx_bytes = stats->rx_bytes; | |
1590 | vf_stats->tx_bytes = stats->tx_bytes; | |
1591 | vf_stats->broadcast = stats->rx_broadcast; | |
1592 | vf_stats->multicast = stats->rx_multicast; | |
1593 | vf_stats->rx_dropped = stats->rx_discards; | |
1594 | vf_stats->tx_dropped = stats->tx_discards; | |
1595 | ||
3d5985a1 JK |
1596 | out_put_vf: |
1597 | ice_put_vf(vf); | |
1598 | return ret; | |
730fdea4 | 1599 | } |
9d5c5a52 | 1600 | |
346f7aa3 JK |
1601 | /** |
1602 | * ice_is_supported_port_vlan_proto - make sure the vlan_proto is supported | |
1603 | * @hw: hardware structure used to check the VLAN mode | |
1604 | * @vlan_proto: VLAN TPID being checked | |
1605 | * | |
1606 | * If the device is configured in Double VLAN Mode (DVM), then both ETH_P_8021Q | |
1607 | * and ETH_P_8021AD are supported. If the device is configured in Single VLAN | |
1608 | * Mode (SVM), then only ETH_P_8021Q is supported. | |
1609 | */ | |
1610 | static bool | |
1611 | ice_is_supported_port_vlan_proto(struct ice_hw *hw, u16 vlan_proto) | |
1612 | { | |
1613 | bool is_supported = false; | |
1614 | ||
1615 | switch (vlan_proto) { | |
1616 | case ETH_P_8021Q: | |
1617 | is_supported = true; | |
1618 | break; | |
1619 | case ETH_P_8021AD: | |
1620 | if (ice_is_dvm_ena(hw)) | |
1621 | is_supported = true; | |
1622 | break; | |
1623 | } | |
1624 | ||
1625 | return is_supported; | |
1626 | } | |
1627 | ||
1628 | /** | |
1629 | * ice_set_vf_port_vlan | |
1630 | * @netdev: network interface device structure | |
1631 | * @vf_id: VF identifier | |
1632 | * @vlan_id: VLAN ID being set | |
1633 | * @qos: priority setting | |
1634 | * @vlan_proto: VLAN protocol | |
1635 | * | |
1636 | * program VF Port VLAN ID and/or QoS | |
1637 | */ | |
1638 | int | |
1639 | ice_set_vf_port_vlan(struct net_device *netdev, int vf_id, u16 vlan_id, u8 qos, | |
1640 | __be16 vlan_proto) | |
1641 | { | |
1642 | struct ice_pf *pf = ice_netdev_to_pf(netdev); | |
1643 | u16 local_vlan_proto = ntohs(vlan_proto); | |
1644 | struct device *dev; | |
1645 | struct ice_vf *vf; | |
1646 | int ret; | |
1647 | ||
1648 | dev = ice_pf_to_dev(pf); | |
1649 | ||
1650 | if (vlan_id >= VLAN_N_VID || qos > 7) { | |
1651 | dev_err(dev, "Invalid Port VLAN parameters for VF %d, ID %d, QoS %d\n", | |
1652 | vf_id, vlan_id, qos); | |
1653 | return -EINVAL; | |
1654 | } | |
1655 | ||
1656 | if (!ice_is_supported_port_vlan_proto(&pf->hw, local_vlan_proto)) { | |
1657 | dev_err(dev, "VF VLAN protocol 0x%04x is not supported\n", | |
1658 | local_vlan_proto); | |
1659 | return -EPROTONOSUPPORT; | |
1660 | } | |
1661 | ||
1662 | vf = ice_get_vf_by_id(pf, vf_id); | |
1663 | if (!vf) | |
1664 | return -EINVAL; | |
1665 | ||
1666 | ret = ice_check_vf_ready_for_cfg(vf); | |
1667 | if (ret) | |
1668 | goto out_put_vf; | |
1669 | ||
1670 | if (ice_vf_get_port_vlan_prio(vf) == qos && | |
1671 | ice_vf_get_port_vlan_tpid(vf) == local_vlan_proto && | |
1672 | ice_vf_get_port_vlan_id(vf) == vlan_id) { | |
1673 | /* duplicate request, so just return success */ | |
1674 | dev_dbg(dev, "Duplicate port VLAN %u, QoS %u, TPID 0x%04x request\n", | |
1675 | vlan_id, qos, local_vlan_proto); | |
1676 | ret = 0; | |
1677 | goto out_put_vf; | |
1678 | } | |
1679 | ||
1680 | mutex_lock(&vf->cfg_lock); | |
1681 | ||
1682 | vf->port_vlan_info = ICE_VLAN(local_vlan_proto, vlan_id, qos); | |
1683 | if (ice_vf_is_port_vlan_ena(vf)) | |
1684 | dev_info(dev, "Setting VLAN %u, QoS %u, TPID 0x%04x on VF %d\n", | |
1685 | vlan_id, qos, local_vlan_proto, vf_id); | |
1686 | else | |
1687 | dev_info(dev, "Clearing port VLAN on VF %d\n", vf_id); | |
1688 | ||
9dbb33da | 1689 | ice_reset_vf(vf, ICE_VF_RESET_NOTIFY); |
346f7aa3 JK |
1690 | mutex_unlock(&vf->cfg_lock); |
1691 | ||
1692 | out_put_vf: | |
1693 | ice_put_vf(vf); | |
1694 | return ret; | |
1695 | } | |
1696 | ||
7438a3b0 PG |
1697 | /** |
1698 | * ice_print_vf_rx_mdd_event - print VF Rx malicious driver detect event | |
1699 | * @vf: pointer to the VF structure | |
1700 | */ | |
1701 | void ice_print_vf_rx_mdd_event(struct ice_vf *vf) | |
1702 | { | |
1703 | struct ice_pf *pf = vf->pf; | |
1704 | struct device *dev; | |
1705 | ||
1706 | dev = ice_pf_to_dev(pf); | |
1707 | ||
1708 | dev_info(dev, "%d Rx Malicious Driver Detection events detected on PF %d VF %d MAC %pM. mdd-auto-reset-vfs=%s\n", | |
1709 | vf->mdd_rx_events.count, pf->hw.pf_id, vf->vf_id, | |
e0645311 | 1710 | vf->dev_lan_addr, |
7438a3b0 PG |
1711 | test_bit(ICE_FLAG_MDD_AUTO_RESET_VF, pf->flags) |
1712 | ? "on" : "off"); | |
1713 | } | |
1714 | ||
9d5c5a52 | 1715 | /** |
ef860480 | 1716 | * ice_print_vfs_mdd_events - print VFs malicious driver detect event |
9d5c5a52 PG |
1717 | * @pf: pointer to the PF structure |
1718 | * | |
1719 | * Called from ice_handle_mdd_event to rate limit and print VFs MDD events. | |
1720 | */ | |
1721 | void ice_print_vfs_mdd_events(struct ice_pf *pf) | |
1722 | { | |
1723 | struct device *dev = ice_pf_to_dev(pf); | |
1724 | struct ice_hw *hw = &pf->hw; | |
c4c2c7db JK |
1725 | struct ice_vf *vf; |
1726 | unsigned int bkt; | |
9d5c5a52 PG |
1727 | |
1728 | /* check that there are pending MDD events to print */ | |
7e408e07 | 1729 | if (!test_and_clear_bit(ICE_MDD_VF_PRINT_PENDING, pf->state)) |
9d5c5a52 PG |
1730 | return; |
1731 | ||
1732 | /* VF MDD event logs are rate limited to one second intervals */ | |
000773c0 | 1733 | if (time_is_after_jiffies(pf->vfs.last_printed_mdd_jiffies + HZ * 1)) |
9d5c5a52 PG |
1734 | return; |
1735 | ||
000773c0 | 1736 | pf->vfs.last_printed_mdd_jiffies = jiffies; |
9d5c5a52 | 1737 | |
3d5985a1 | 1738 | mutex_lock(&pf->vfs.table_lock); |
c4c2c7db | 1739 | ice_for_each_vf(pf, bkt, vf) { |
9d5c5a52 PG |
1740 | /* only print Rx MDD event message if there are new events */ |
1741 | if (vf->mdd_rx_events.count != vf->mdd_rx_events.last_printed) { | |
1742 | vf->mdd_rx_events.last_printed = | |
1743 | vf->mdd_rx_events.count; | |
7438a3b0 | 1744 | ice_print_vf_rx_mdd_event(vf); |
9d5c5a52 PG |
1745 | } |
1746 | ||
1747 | /* only print Tx MDD event message if there are new events */ | |
1748 | if (vf->mdd_tx_events.count != vf->mdd_tx_events.last_printed) { | |
1749 | vf->mdd_tx_events.last_printed = | |
1750 | vf->mdd_tx_events.count; | |
1751 | ||
1752 | dev_info(dev, "%d Tx Malicious Driver Detection events detected on PF %d VF %d MAC %pM.\n", | |
c4c2c7db | 1753 | vf->mdd_tx_events.count, hw->pf_id, vf->vf_id, |
e0645311 | 1754 | vf->dev_lan_addr); |
9d5c5a52 PG |
1755 | } |
1756 | } | |
3d5985a1 | 1757 | mutex_unlock(&pf->vfs.table_lock); |
9d5c5a52 | 1758 | } |
a54a0b24 NN |
1759 | |
1760 | /** | |
1761 | * ice_restore_all_vfs_msi_state - restore VF MSI state after PF FLR | |
1762 | * @pdev: pointer to a pci_dev structure | |
1763 | * | |
1764 | * Called when recovering from a PF FLR to restore interrupt capability to | |
1765 | * the VFs. | |
1766 | */ | |
1767 | void ice_restore_all_vfs_msi_state(struct pci_dev *pdev) | |
1768 | { | |
a54a0b24 NN |
1769 | u16 vf_id; |
1770 | int pos; | |
1771 | ||
1772 | if (!pci_num_vf(pdev)) | |
1773 | return; | |
1774 | ||
1775 | pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); | |
1776 | if (pos) { | |
4c26f69d PSJ |
1777 | struct pci_dev *vfdev; |
1778 | ||
a54a0b24 NN |
1779 | pci_read_config_word(pdev, pos + PCI_SRIOV_VF_DID, |
1780 | &vf_id); | |
1781 | vfdev = pci_get_device(pdev->vendor, vf_id, NULL); | |
1782 | while (vfdev) { | |
1783 | if (vfdev->is_virtfn && vfdev->physfn == pdev) | |
1784 | pci_restore_msi_state(vfdev); | |
1785 | vfdev = pci_get_device(pdev->vendor, vf_id, | |
1786 | vfdev); | |
1787 | } | |
1788 | } | |
1789 | } | |
0891c896 VS |
1790 | |
1791 | /** | |
1792 | * ice_is_malicious_vf - helper function to detect a malicious VF | |
1793 | * @pf: ptr to struct ice_pf | |
1794 | * @event: pointer to the AQ event | |
1795 | * @num_msg_proc: the number of messages processed so far | |
1796 | * @num_msg_pending: the number of messages peinding in admin queue | |
1797 | */ | |
1798 | bool | |
1799 | ice_is_malicious_vf(struct ice_pf *pf, struct ice_rq_event_info *event, | |
1800 | u16 num_msg_proc, u16 num_msg_pending) | |
1801 | { | |
1802 | s16 vf_id = le16_to_cpu(event->desc.retval); | |
1803 | struct device *dev = ice_pf_to_dev(pf); | |
1804 | struct ice_mbx_data mbxdata; | |
0891c896 VS |
1805 | bool malvf = false; |
1806 | struct ice_vf *vf; | |
5518ac2a | 1807 | int status; |
0891c896 | 1808 | |
fb916db1 JK |
1809 | vf = ice_get_vf_by_id(pf, vf_id); |
1810 | if (!vf) | |
0891c896 VS |
1811 | return false; |
1812 | ||
0891c896 | 1813 | if (test_bit(ICE_VF_STATE_DIS, vf->vf_states)) |
3d5985a1 | 1814 | goto out_put_vf; |
0891c896 VS |
1815 | |
1816 | mbxdata.num_msg_proc = num_msg_proc; | |
1817 | mbxdata.num_pending_arq = num_msg_pending; | |
1818 | mbxdata.max_num_msgs_mbx = pf->hw.mailboxq.num_rq_entries; | |
1819 | #define ICE_MBX_OVERFLOW_WATERMARK 64 | |
1820 | mbxdata.async_watermark_val = ICE_MBX_OVERFLOW_WATERMARK; | |
1821 | ||
1822 | /* check to see if we have a malicious VF */ | |
1823 | status = ice_mbx_vf_state_handler(&pf->hw, &mbxdata, vf_id, &malvf); | |
1824 | if (status) | |
3d5985a1 | 1825 | goto out_put_vf; |
0891c896 VS |
1826 | |
1827 | if (malvf) { | |
1828 | bool report_vf = false; | |
1829 | ||
1830 | /* if the VF is malicious and we haven't let the user | |
1831 | * know about it, then let them know now | |
1832 | */ | |
000773c0 | 1833 | status = ice_mbx_report_malvf(&pf->hw, pf->vfs.malvfs, |
dc36796e | 1834 | ICE_MAX_SRIOV_VFS, vf_id, |
0891c896 VS |
1835 | &report_vf); |
1836 | if (status) | |
1837 | dev_dbg(dev, "Error reporting malicious VF\n"); | |
1838 | ||
1839 | if (report_vf) { | |
1840 | struct ice_vsi *pf_vsi = ice_get_main_vsi(pf); | |
1841 | ||
1842 | if (pf_vsi) | |
1843 | dev_warn(dev, "VF MAC %pM on PF MAC %pM is generating asynchronous messages and may be overflowing the PF message queue. Please see the Adapter User Guide for more information\n", | |
e0645311 | 1844 | &vf->dev_lan_addr[0], |
0891c896 VS |
1845 | pf_vsi->netdev->dev_addr); |
1846 | } | |
0891c896 VS |
1847 | } |
1848 | ||
3d5985a1 JK |
1849 | out_put_vf: |
1850 | ice_put_vf(vf); | |
1851 | return malvf; | |
0891c896 | 1852 | } |