| 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | /* Copyright(c) 2013 - 2018 Intel Corporation. */ |
| 3 | |
| 4 | #include "i40e.h" |
| 5 | |
| 6 | /*********************notification routines***********************/ |
| 7 | |
| 8 | /** |
| 9 | * i40e_vc_vf_broadcast |
| 10 | * @pf: pointer to the PF structure |
| 11 | * @v_opcode: operation code |
| 12 | * @v_retval: return value |
| 13 | * @msg: pointer to the msg buffer |
| 14 | * @msglen: msg length |
| 15 | * |
| 16 | * send a message to all VFs on a given PF |
| 17 | **/ |
| 18 | static void i40e_vc_vf_broadcast(struct i40e_pf *pf, |
| 19 | enum virtchnl_ops v_opcode, |
| 20 | i40e_status v_retval, u8 *msg, |
| 21 | u16 msglen) |
| 22 | { |
| 23 | struct i40e_hw *hw = &pf->hw; |
| 24 | struct i40e_vf *vf = pf->vf; |
| 25 | int i; |
| 26 | |
| 27 | for (i = 0; i < pf->num_alloc_vfs; i++, vf++) { |
| 28 | int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id; |
| 29 | /* Not all vfs are enabled so skip the ones that are not */ |
| 30 | if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) && |
| 31 | !test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) |
| 32 | continue; |
| 33 | |
| 34 | /* Ignore return value on purpose - a given VF may fail, but |
| 35 | * we need to keep going and send to all of them |
| 36 | */ |
| 37 | i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval, |
| 38 | msg, msglen, NULL); |
| 39 | } |
| 40 | } |
| 41 | |
| 42 | /** |
| 43 | * i40e_vc_notify_vf_link_state |
| 44 | * @vf: pointer to the VF structure |
| 45 | * |
| 46 | * send a link status message to a single VF |
| 47 | **/ |
| 48 | static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf) |
| 49 | { |
| 50 | struct virtchnl_pf_event pfe; |
| 51 | struct i40e_pf *pf = vf->pf; |
| 52 | struct i40e_hw *hw = &pf->hw; |
| 53 | struct i40e_link_status *ls = &pf->hw.phy.link_info; |
| 54 | int abs_vf_id = vf->vf_id + (int)hw->func_caps.vf_base_id; |
| 55 | |
| 56 | pfe.event = VIRTCHNL_EVENT_LINK_CHANGE; |
| 57 | pfe.severity = PF_EVENT_SEVERITY_INFO; |
| 58 | |
| 59 | /* Always report link is down if the VF queues aren't enabled */ |
| 60 | if (!vf->queues_enabled) { |
| 61 | pfe.event_data.link_event.link_status = false; |
| 62 | pfe.event_data.link_event.link_speed = 0; |
| 63 | } else if (vf->link_forced) { |
| 64 | pfe.event_data.link_event.link_status = vf->link_up; |
| 65 | pfe.event_data.link_event.link_speed = |
| 66 | (vf->link_up ? VIRTCHNL_LINK_SPEED_40GB : 0); |
| 67 | } else { |
| 68 | pfe.event_data.link_event.link_status = |
| 69 | ls->link_info & I40E_AQ_LINK_UP; |
| 70 | pfe.event_data.link_event.link_speed = |
| 71 | i40e_virtchnl_link_speed(ls->link_speed); |
| 72 | } |
| 73 | |
| 74 | i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT, |
| 75 | 0, (u8 *)&pfe, sizeof(pfe), NULL); |
| 76 | } |
| 77 | |
| 78 | /** |
| 79 | * i40e_vc_notify_link_state |
| 80 | * @pf: pointer to the PF structure |
| 81 | * |
| 82 | * send a link status message to all VFs on a given PF |
| 83 | **/ |
| 84 | void i40e_vc_notify_link_state(struct i40e_pf *pf) |
| 85 | { |
| 86 | int i; |
| 87 | |
| 88 | for (i = 0; i < pf->num_alloc_vfs; i++) |
| 89 | i40e_vc_notify_vf_link_state(&pf->vf[i]); |
| 90 | } |
| 91 | |
| 92 | /** |
| 93 | * i40e_vc_notify_reset |
| 94 | * @pf: pointer to the PF structure |
| 95 | * |
| 96 | * indicate a pending reset to all VFs on a given PF |
| 97 | **/ |
| 98 | void i40e_vc_notify_reset(struct i40e_pf *pf) |
| 99 | { |
| 100 | struct virtchnl_pf_event pfe; |
| 101 | |
| 102 | pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING; |
| 103 | pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM; |
| 104 | i40e_vc_vf_broadcast(pf, VIRTCHNL_OP_EVENT, 0, |
| 105 | (u8 *)&pfe, sizeof(struct virtchnl_pf_event)); |
| 106 | } |
| 107 | |
| 108 | /** |
| 109 | * i40e_vc_notify_vf_reset |
| 110 | * @vf: pointer to the VF structure |
| 111 | * |
| 112 | * indicate a pending reset to the given VF |
| 113 | **/ |
| 114 | void i40e_vc_notify_vf_reset(struct i40e_vf *vf) |
| 115 | { |
| 116 | struct virtchnl_pf_event pfe; |
| 117 | int abs_vf_id; |
| 118 | |
| 119 | /* validate the request */ |
| 120 | if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs) |
| 121 | return; |
| 122 | |
| 123 | /* verify if the VF is in either init or active before proceeding */ |
| 124 | if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states) && |
| 125 | !test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) |
| 126 | return; |
| 127 | |
| 128 | abs_vf_id = vf->vf_id + (int)vf->pf->hw.func_caps.vf_base_id; |
| 129 | |
| 130 | pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING; |
| 131 | pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM; |
| 132 | i40e_aq_send_msg_to_vf(&vf->pf->hw, abs_vf_id, VIRTCHNL_OP_EVENT, |
| 133 | 0, (u8 *)&pfe, |
| 134 | sizeof(struct virtchnl_pf_event), NULL); |
| 135 | } |
| 136 | /***********************misc routines*****************************/ |
| 137 | |
| 138 | /** |
| 139 | * i40e_vc_disable_vf |
| 140 | * @vf: pointer to the VF info |
| 141 | * |
| 142 | * Disable the VF through a SW reset. |
| 143 | **/ |
| 144 | static inline void i40e_vc_disable_vf(struct i40e_vf *vf) |
| 145 | { |
| 146 | int i; |
| 147 | |
| 148 | i40e_vc_notify_vf_reset(vf); |
| 149 | |
| 150 | /* We want to ensure that an actual reset occurs initiated after this |
| 151 | * function was called. However, we do not want to wait forever, so |
| 152 | * we'll give a reasonable time and print a message if we failed to |
| 153 | * ensure a reset. |
| 154 | */ |
| 155 | for (i = 0; i < 20; i++) { |
| 156 | if (i40e_reset_vf(vf, false)) |
| 157 | return; |
| 158 | usleep_range(10000, 20000); |
| 159 | } |
| 160 | |
| 161 | dev_warn(&vf->pf->pdev->dev, |
| 162 | "Failed to initiate reset for VF %d after 200 milliseconds\n", |
| 163 | vf->vf_id); |
| 164 | } |
| 165 | |
| 166 | /** |
| 167 | * i40e_vc_isvalid_vsi_id |
| 168 | * @vf: pointer to the VF info |
| 169 | * @vsi_id: VF relative VSI id |
| 170 | * |
| 171 | * check for the valid VSI id |
| 172 | **/ |
| 173 | static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u16 vsi_id) |
| 174 | { |
| 175 | struct i40e_pf *pf = vf->pf; |
| 176 | struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id); |
| 177 | |
| 178 | return (vsi && (vsi->vf_id == vf->vf_id)); |
| 179 | } |
| 180 | |
| 181 | /** |
| 182 | * i40e_vc_isvalid_queue_id |
| 183 | * @vf: pointer to the VF info |
| 184 | * @vsi_id: vsi id |
| 185 | * @qid: vsi relative queue id |
| 186 | * |
| 187 | * check for the valid queue id |
| 188 | **/ |
| 189 | static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id, |
| 190 | u16 qid) |
| 191 | { |
| 192 | struct i40e_pf *pf = vf->pf; |
| 193 | struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id); |
| 194 | |
| 195 | return (vsi && (qid < vsi->alloc_queue_pairs)); |
| 196 | } |
| 197 | |
| 198 | /** |
| 199 | * i40e_vc_isvalid_vector_id |
| 200 | * @vf: pointer to the VF info |
| 201 | * @vector_id: VF relative vector id |
| 202 | * |
| 203 | * check for the valid vector id |
| 204 | **/ |
| 205 | static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u32 vector_id) |
| 206 | { |
| 207 | struct i40e_pf *pf = vf->pf; |
| 208 | |
| 209 | return vector_id < pf->hw.func_caps.num_msix_vectors_vf; |
| 210 | } |
| 211 | |
| 212 | /***********************vf resource mgmt routines*****************/ |
| 213 | |
| 214 | /** |
| 215 | * i40e_vc_get_pf_queue_id |
| 216 | * @vf: pointer to the VF info |
| 217 | * @vsi_id: id of VSI as provided by the FW |
| 218 | * @vsi_queue_id: vsi relative queue id |
| 219 | * |
| 220 | * return PF relative queue id |
| 221 | **/ |
| 222 | static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u16 vsi_id, |
| 223 | u8 vsi_queue_id) |
| 224 | { |
| 225 | struct i40e_pf *pf = vf->pf; |
| 226 | struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id); |
| 227 | u16 pf_queue_id = I40E_QUEUE_END_OF_LIST; |
| 228 | |
| 229 | if (!vsi) |
| 230 | return pf_queue_id; |
| 231 | |
| 232 | if (le16_to_cpu(vsi->info.mapping_flags) & |
| 233 | I40E_AQ_VSI_QUE_MAP_NONCONTIG) |
| 234 | pf_queue_id = |
| 235 | le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]); |
| 236 | else |
| 237 | pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) + |
| 238 | vsi_queue_id; |
| 239 | |
| 240 | return pf_queue_id; |
| 241 | } |
| 242 | |
| 243 | /** |
| 244 | * i40e_get_real_pf_qid |
| 245 | * @vf: pointer to the VF info |
| 246 | * @vsi_id: vsi id |
| 247 | * @queue_id: queue number |
| 248 | * |
| 249 | * wrapper function to get pf_queue_id handling ADq code as well |
| 250 | **/ |
| 251 | static u16 i40e_get_real_pf_qid(struct i40e_vf *vf, u16 vsi_id, u16 queue_id) |
| 252 | { |
| 253 | int i; |
| 254 | |
| 255 | if (vf->adq_enabled) { |
| 256 | /* Although VF considers all the queues(can be 1 to 16) as its |
| 257 | * own but they may actually belong to different VSIs(up to 4). |
| 258 | * We need to find which queues belongs to which VSI. |
| 259 | */ |
| 260 | for (i = 0; i < vf->num_tc; i++) { |
| 261 | if (queue_id < vf->ch[i].num_qps) { |
| 262 | vsi_id = vf->ch[i].vsi_id; |
| 263 | break; |
| 264 | } |
| 265 | /* find right queue id which is relative to a |
| 266 | * given VSI. |
| 267 | */ |
| 268 | queue_id -= vf->ch[i].num_qps; |
| 269 | } |
| 270 | } |
| 271 | |
| 272 | return i40e_vc_get_pf_queue_id(vf, vsi_id, queue_id); |
| 273 | } |
| 274 | |
| 275 | /** |
| 276 | * i40e_config_irq_link_list |
| 277 | * @vf: pointer to the VF info |
| 278 | * @vsi_id: id of VSI as given by the FW |
| 279 | * @vecmap: irq map info |
| 280 | * |
| 281 | * configure irq link list from the map |
| 282 | **/ |
| 283 | static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_id, |
| 284 | struct virtchnl_vector_map *vecmap) |
| 285 | { |
| 286 | unsigned long linklistmap = 0, tempmap; |
| 287 | struct i40e_pf *pf = vf->pf; |
| 288 | struct i40e_hw *hw = &pf->hw; |
| 289 | u16 vsi_queue_id, pf_queue_id; |
| 290 | enum i40e_queue_type qtype; |
| 291 | u16 next_q, vector_id, size; |
| 292 | u32 reg, reg_idx; |
| 293 | u16 itr_idx = 0; |
| 294 | |
| 295 | vector_id = vecmap->vector_id; |
| 296 | /* setup the head */ |
| 297 | if (0 == vector_id) |
| 298 | reg_idx = I40E_VPINT_LNKLST0(vf->vf_id); |
| 299 | else |
| 300 | reg_idx = I40E_VPINT_LNKLSTN( |
| 301 | ((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) + |
| 302 | (vector_id - 1)); |
| 303 | |
| 304 | if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) { |
| 305 | /* Special case - No queues mapped on this vector */ |
| 306 | wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK); |
| 307 | goto irq_list_done; |
| 308 | } |
| 309 | tempmap = vecmap->rxq_map; |
| 310 | for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { |
| 311 | linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES * |
| 312 | vsi_queue_id)); |
| 313 | } |
| 314 | |
| 315 | tempmap = vecmap->txq_map; |
| 316 | for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) { |
| 317 | linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES * |
| 318 | vsi_queue_id + 1)); |
| 319 | } |
| 320 | |
| 321 | size = I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES; |
| 322 | next_q = find_first_bit(&linklistmap, size); |
| 323 | if (unlikely(next_q == size)) |
| 324 | goto irq_list_done; |
| 325 | |
| 326 | vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES; |
| 327 | qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES; |
| 328 | pf_queue_id = i40e_get_real_pf_qid(vf, vsi_id, vsi_queue_id); |
| 329 | reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id); |
| 330 | |
| 331 | wr32(hw, reg_idx, reg); |
| 332 | |
| 333 | while (next_q < size) { |
| 334 | switch (qtype) { |
| 335 | case I40E_QUEUE_TYPE_RX: |
| 336 | reg_idx = I40E_QINT_RQCTL(pf_queue_id); |
| 337 | itr_idx = vecmap->rxitr_idx; |
| 338 | break; |
| 339 | case I40E_QUEUE_TYPE_TX: |
| 340 | reg_idx = I40E_QINT_TQCTL(pf_queue_id); |
| 341 | itr_idx = vecmap->txitr_idx; |
| 342 | break; |
| 343 | default: |
| 344 | break; |
| 345 | } |
| 346 | |
| 347 | next_q = find_next_bit(&linklistmap, size, next_q + 1); |
| 348 | if (next_q < size) { |
| 349 | vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES; |
| 350 | qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES; |
| 351 | pf_queue_id = i40e_get_real_pf_qid(vf, |
| 352 | vsi_id, |
| 353 | vsi_queue_id); |
| 354 | } else { |
| 355 | pf_queue_id = I40E_QUEUE_END_OF_LIST; |
| 356 | qtype = 0; |
| 357 | } |
| 358 | |
| 359 | /* format for the RQCTL & TQCTL regs is same */ |
| 360 | reg = (vector_id) | |
| 361 | (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) | |
| 362 | (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) | |
| 363 | BIT(I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) | |
| 364 | (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT); |
| 365 | wr32(hw, reg_idx, reg); |
| 366 | } |
| 367 | |
| 368 | /* if the vf is running in polling mode and using interrupt zero, |
| 369 | * need to disable auto-mask on enabling zero interrupt for VFs. |
| 370 | */ |
| 371 | if ((vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) && |
| 372 | (vector_id == 0)) { |
| 373 | reg = rd32(hw, I40E_GLINT_CTL); |
| 374 | if (!(reg & I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK)) { |
| 375 | reg |= I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK; |
| 376 | wr32(hw, I40E_GLINT_CTL, reg); |
| 377 | } |
| 378 | } |
| 379 | |
| 380 | irq_list_done: |
| 381 | i40e_flush(hw); |
| 382 | } |
| 383 | |
| 384 | /** |
| 385 | * i40e_release_iwarp_qvlist |
| 386 | * @vf: pointer to the VF. |
| 387 | * |
| 388 | **/ |
| 389 | static void i40e_release_iwarp_qvlist(struct i40e_vf *vf) |
| 390 | { |
| 391 | struct i40e_pf *pf = vf->pf; |
| 392 | struct virtchnl_iwarp_qvlist_info *qvlist_info = vf->qvlist_info; |
| 393 | u32 msix_vf; |
| 394 | u32 i; |
| 395 | |
| 396 | if (!vf->qvlist_info) |
| 397 | return; |
| 398 | |
| 399 | msix_vf = pf->hw.func_caps.num_msix_vectors_vf; |
| 400 | for (i = 0; i < qvlist_info->num_vectors; i++) { |
| 401 | struct virtchnl_iwarp_qv_info *qv_info; |
| 402 | u32 next_q_index, next_q_type; |
| 403 | struct i40e_hw *hw = &pf->hw; |
| 404 | u32 v_idx, reg_idx, reg; |
| 405 | |
| 406 | qv_info = &qvlist_info->qv_info[i]; |
| 407 | if (!qv_info) |
| 408 | continue; |
| 409 | v_idx = qv_info->v_idx; |
| 410 | if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) { |
| 411 | /* Figure out the queue after CEQ and make that the |
| 412 | * first queue. |
| 413 | */ |
| 414 | reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx; |
| 415 | reg = rd32(hw, I40E_VPINT_CEQCTL(reg_idx)); |
| 416 | next_q_index = (reg & I40E_VPINT_CEQCTL_NEXTQ_INDX_MASK) |
| 417 | >> I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT; |
| 418 | next_q_type = (reg & I40E_VPINT_CEQCTL_NEXTQ_TYPE_MASK) |
| 419 | >> I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT; |
| 420 | |
| 421 | reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1); |
| 422 | reg = (next_q_index & |
| 423 | I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) | |
| 424 | (next_q_type << |
| 425 | I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); |
| 426 | |
| 427 | wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg); |
| 428 | } |
| 429 | } |
| 430 | kfree(vf->qvlist_info); |
| 431 | vf->qvlist_info = NULL; |
| 432 | } |
| 433 | |
| 434 | /** |
| 435 | * i40e_config_iwarp_qvlist |
| 436 | * @vf: pointer to the VF info |
| 437 | * @qvlist_info: queue and vector list |
| 438 | * |
| 439 | * Return 0 on success or < 0 on error |
| 440 | **/ |
| 441 | static int i40e_config_iwarp_qvlist(struct i40e_vf *vf, |
| 442 | struct virtchnl_iwarp_qvlist_info *qvlist_info) |
| 443 | { |
| 444 | struct i40e_pf *pf = vf->pf; |
| 445 | struct i40e_hw *hw = &pf->hw; |
| 446 | struct virtchnl_iwarp_qv_info *qv_info; |
| 447 | u32 v_idx, i, reg_idx, reg; |
| 448 | u32 next_q_idx, next_q_type; |
| 449 | u32 msix_vf; |
| 450 | int ret = 0; |
| 451 | |
| 452 | msix_vf = pf->hw.func_caps.num_msix_vectors_vf; |
| 453 | |
| 454 | if (qvlist_info->num_vectors > msix_vf) { |
| 455 | dev_warn(&pf->pdev->dev, |
| 456 | "Incorrect number of iwarp vectors %u. Maximum %u allowed.\n", |
| 457 | qvlist_info->num_vectors, |
| 458 | msix_vf); |
| 459 | ret = -EINVAL; |
| 460 | goto err_out; |
| 461 | } |
| 462 | |
| 463 | kfree(vf->qvlist_info); |
| 464 | vf->qvlist_info = kzalloc(struct_size(vf->qvlist_info, qv_info, |
| 465 | qvlist_info->num_vectors - 1), |
| 466 | GFP_KERNEL); |
| 467 | if (!vf->qvlist_info) { |
| 468 | ret = -ENOMEM; |
| 469 | goto err_out; |
| 470 | } |
| 471 | vf->qvlist_info->num_vectors = qvlist_info->num_vectors; |
| 472 | |
| 473 | msix_vf = pf->hw.func_caps.num_msix_vectors_vf; |
| 474 | for (i = 0; i < qvlist_info->num_vectors; i++) { |
| 475 | qv_info = &qvlist_info->qv_info[i]; |
| 476 | if (!qv_info) |
| 477 | continue; |
| 478 | |
| 479 | /* Validate vector id belongs to this vf */ |
| 480 | if (!i40e_vc_isvalid_vector_id(vf, qv_info->v_idx)) { |
| 481 | ret = -EINVAL; |
| 482 | goto err_free; |
| 483 | } |
| 484 | |
| 485 | v_idx = qv_info->v_idx; |
| 486 | |
| 487 | vf->qvlist_info->qv_info[i] = *qv_info; |
| 488 | |
| 489 | reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1); |
| 490 | /* We might be sharing the interrupt, so get the first queue |
| 491 | * index and type, push it down the list by adding the new |
| 492 | * queue on top. Also link it with the new queue in CEQCTL. |
| 493 | */ |
| 494 | reg = rd32(hw, I40E_VPINT_LNKLSTN(reg_idx)); |
| 495 | next_q_idx = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) >> |
| 496 | I40E_VPINT_LNKLSTN_FIRSTQ_INDX_SHIFT); |
| 497 | next_q_type = ((reg & I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK) >> |
| 498 | I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); |
| 499 | |
| 500 | if (qv_info->ceq_idx != I40E_QUEUE_INVALID_IDX) { |
| 501 | reg_idx = (msix_vf - 1) * vf->vf_id + qv_info->ceq_idx; |
| 502 | reg = (I40E_VPINT_CEQCTL_CAUSE_ENA_MASK | |
| 503 | (v_idx << I40E_VPINT_CEQCTL_MSIX_INDX_SHIFT) | |
| 504 | (qv_info->itr_idx << I40E_VPINT_CEQCTL_ITR_INDX_SHIFT) | |
| 505 | (next_q_type << I40E_VPINT_CEQCTL_NEXTQ_TYPE_SHIFT) | |
| 506 | (next_q_idx << I40E_VPINT_CEQCTL_NEXTQ_INDX_SHIFT)); |
| 507 | wr32(hw, I40E_VPINT_CEQCTL(reg_idx), reg); |
| 508 | |
| 509 | reg_idx = ((msix_vf - 1) * vf->vf_id) + (v_idx - 1); |
| 510 | reg = (qv_info->ceq_idx & |
| 511 | I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK) | |
| 512 | (I40E_QUEUE_TYPE_PE_CEQ << |
| 513 | I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT); |
| 514 | wr32(hw, I40E_VPINT_LNKLSTN(reg_idx), reg); |
| 515 | } |
| 516 | |
| 517 | if (qv_info->aeq_idx != I40E_QUEUE_INVALID_IDX) { |
| 518 | reg = (I40E_VPINT_AEQCTL_CAUSE_ENA_MASK | |
| 519 | (v_idx << I40E_VPINT_AEQCTL_MSIX_INDX_SHIFT) | |
| 520 | (qv_info->itr_idx << I40E_VPINT_AEQCTL_ITR_INDX_SHIFT)); |
| 521 | |
| 522 | wr32(hw, I40E_VPINT_AEQCTL(vf->vf_id), reg); |
| 523 | } |
| 524 | } |
| 525 | |
| 526 | return 0; |
| 527 | err_free: |
| 528 | kfree(vf->qvlist_info); |
| 529 | vf->qvlist_info = NULL; |
| 530 | err_out: |
| 531 | return ret; |
| 532 | } |
| 533 | |
| 534 | /** |
| 535 | * i40e_config_vsi_tx_queue |
| 536 | * @vf: pointer to the VF info |
| 537 | * @vsi_id: id of VSI as provided by the FW |
| 538 | * @vsi_queue_id: vsi relative queue index |
| 539 | * @info: config. info |
| 540 | * |
| 541 | * configure tx queue |
| 542 | **/ |
| 543 | static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id, |
| 544 | u16 vsi_queue_id, |
| 545 | struct virtchnl_txq_info *info) |
| 546 | { |
| 547 | struct i40e_pf *pf = vf->pf; |
| 548 | struct i40e_hw *hw = &pf->hw; |
| 549 | struct i40e_hmc_obj_txq tx_ctx; |
| 550 | struct i40e_vsi *vsi; |
| 551 | u16 pf_queue_id; |
| 552 | u32 qtx_ctl; |
| 553 | int ret = 0; |
| 554 | |
| 555 | if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) { |
| 556 | ret = -ENOENT; |
| 557 | goto error_context; |
| 558 | } |
| 559 | pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id); |
| 560 | vsi = i40e_find_vsi_from_id(pf, vsi_id); |
| 561 | if (!vsi) { |
| 562 | ret = -ENOENT; |
| 563 | goto error_context; |
| 564 | } |
| 565 | |
| 566 | /* clear the context structure first */ |
| 567 | memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq)); |
| 568 | |
| 569 | /* only set the required fields */ |
| 570 | tx_ctx.base = info->dma_ring_addr / 128; |
| 571 | tx_ctx.qlen = info->ring_len; |
| 572 | tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]); |
| 573 | tx_ctx.rdylist_act = 0; |
| 574 | tx_ctx.head_wb_ena = info->headwb_enabled; |
| 575 | tx_ctx.head_wb_addr = info->dma_headwb_addr; |
| 576 | |
| 577 | /* clear the context in the HMC */ |
| 578 | ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id); |
| 579 | if (ret) { |
| 580 | dev_err(&pf->pdev->dev, |
| 581 | "Failed to clear VF LAN Tx queue context %d, error: %d\n", |
| 582 | pf_queue_id, ret); |
| 583 | ret = -ENOENT; |
| 584 | goto error_context; |
| 585 | } |
| 586 | |
| 587 | /* set the context in the HMC */ |
| 588 | ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx); |
| 589 | if (ret) { |
| 590 | dev_err(&pf->pdev->dev, |
| 591 | "Failed to set VF LAN Tx queue context %d error: %d\n", |
| 592 | pf_queue_id, ret); |
| 593 | ret = -ENOENT; |
| 594 | goto error_context; |
| 595 | } |
| 596 | |
| 597 | /* associate this queue with the PCI VF function */ |
| 598 | qtx_ctl = I40E_QTX_CTL_VF_QUEUE; |
| 599 | qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT) |
| 600 | & I40E_QTX_CTL_PF_INDX_MASK); |
| 601 | qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id) |
| 602 | << I40E_QTX_CTL_VFVM_INDX_SHIFT) |
| 603 | & I40E_QTX_CTL_VFVM_INDX_MASK); |
| 604 | wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl); |
| 605 | i40e_flush(hw); |
| 606 | |
| 607 | error_context: |
| 608 | return ret; |
| 609 | } |
| 610 | |
| 611 | /** |
| 612 | * i40e_config_vsi_rx_queue |
| 613 | * @vf: pointer to the VF info |
| 614 | * @vsi_id: id of VSI as provided by the FW |
| 615 | * @vsi_queue_id: vsi relative queue index |
| 616 | * @info: config. info |
| 617 | * |
| 618 | * configure rx queue |
| 619 | **/ |
| 620 | static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id, |
| 621 | u16 vsi_queue_id, |
| 622 | struct virtchnl_rxq_info *info) |
| 623 | { |
| 624 | struct i40e_pf *pf = vf->pf; |
| 625 | struct i40e_hw *hw = &pf->hw; |
| 626 | struct i40e_hmc_obj_rxq rx_ctx; |
| 627 | u16 pf_queue_id; |
| 628 | int ret = 0; |
| 629 | |
| 630 | pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id); |
| 631 | |
| 632 | /* clear the context structure first */ |
| 633 | memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq)); |
| 634 | |
| 635 | /* only set the required fields */ |
| 636 | rx_ctx.base = info->dma_ring_addr / 128; |
| 637 | rx_ctx.qlen = info->ring_len; |
| 638 | |
| 639 | if (info->splithdr_enabled) { |
| 640 | rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2 | |
| 641 | I40E_RX_SPLIT_IP | |
| 642 | I40E_RX_SPLIT_TCP_UDP | |
| 643 | I40E_RX_SPLIT_SCTP; |
| 644 | /* header length validation */ |
| 645 | if (info->hdr_size > ((2 * 1024) - 64)) { |
| 646 | ret = -EINVAL; |
| 647 | goto error_param; |
| 648 | } |
| 649 | rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT; |
| 650 | |
| 651 | /* set split mode 10b */ |
| 652 | rx_ctx.dtype = I40E_RX_DTYPE_HEADER_SPLIT; |
| 653 | } |
| 654 | |
| 655 | /* databuffer length validation */ |
| 656 | if (info->databuffer_size > ((16 * 1024) - 128)) { |
| 657 | ret = -EINVAL; |
| 658 | goto error_param; |
| 659 | } |
| 660 | rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT; |
| 661 | |
| 662 | /* max pkt. length validation */ |
| 663 | if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) { |
| 664 | ret = -EINVAL; |
| 665 | goto error_param; |
| 666 | } |
| 667 | rx_ctx.rxmax = info->max_pkt_size; |
| 668 | |
| 669 | /* enable 32bytes desc always */ |
| 670 | rx_ctx.dsize = 1; |
| 671 | |
| 672 | /* default values */ |
| 673 | rx_ctx.lrxqthresh = 1; |
| 674 | rx_ctx.crcstrip = 1; |
| 675 | rx_ctx.prefena = 1; |
| 676 | rx_ctx.l2tsel = 1; |
| 677 | |
| 678 | /* clear the context in the HMC */ |
| 679 | ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id); |
| 680 | if (ret) { |
| 681 | dev_err(&pf->pdev->dev, |
| 682 | "Failed to clear VF LAN Rx queue context %d, error: %d\n", |
| 683 | pf_queue_id, ret); |
| 684 | ret = -ENOENT; |
| 685 | goto error_param; |
| 686 | } |
| 687 | |
| 688 | /* set the context in the HMC */ |
| 689 | ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx); |
| 690 | if (ret) { |
| 691 | dev_err(&pf->pdev->dev, |
| 692 | "Failed to set VF LAN Rx queue context %d error: %d\n", |
| 693 | pf_queue_id, ret); |
| 694 | ret = -ENOENT; |
| 695 | goto error_param; |
| 696 | } |
| 697 | |
| 698 | error_param: |
| 699 | return ret; |
| 700 | } |
| 701 | |
| 702 | /** |
| 703 | * i40e_alloc_vsi_res |
| 704 | * @vf: pointer to the VF info |
| 705 | * @idx: VSI index, applies only for ADq mode, zero otherwise |
| 706 | * |
| 707 | * alloc VF vsi context & resources |
| 708 | **/ |
| 709 | static int i40e_alloc_vsi_res(struct i40e_vf *vf, u8 idx) |
| 710 | { |
| 711 | struct i40e_mac_filter *f = NULL; |
| 712 | struct i40e_pf *pf = vf->pf; |
| 713 | struct i40e_vsi *vsi; |
| 714 | u64 max_tx_rate = 0; |
| 715 | int ret = 0; |
| 716 | |
| 717 | vsi = i40e_vsi_setup(pf, I40E_VSI_SRIOV, pf->vsi[pf->lan_vsi]->seid, |
| 718 | vf->vf_id); |
| 719 | |
| 720 | if (!vsi) { |
| 721 | dev_err(&pf->pdev->dev, |
| 722 | "add vsi failed for VF %d, aq_err %d\n", |
| 723 | vf->vf_id, pf->hw.aq.asq_last_status); |
| 724 | ret = -ENOENT; |
| 725 | goto error_alloc_vsi_res; |
| 726 | } |
| 727 | |
| 728 | if (!idx) { |
| 729 | u64 hena = i40e_pf_get_default_rss_hena(pf); |
| 730 | u8 broadcast[ETH_ALEN]; |
| 731 | |
| 732 | vf->lan_vsi_idx = vsi->idx; |
| 733 | vf->lan_vsi_id = vsi->id; |
| 734 | /* If the port VLAN has been configured and then the |
| 735 | * VF driver was removed then the VSI port VLAN |
| 736 | * configuration was destroyed. Check if there is |
| 737 | * a port VLAN and restore the VSI configuration if |
| 738 | * needed. |
| 739 | */ |
| 740 | if (vf->port_vlan_id) |
| 741 | i40e_vsi_add_pvid(vsi, vf->port_vlan_id); |
| 742 | |
| 743 | spin_lock_bh(&vsi->mac_filter_hash_lock); |
| 744 | if (is_valid_ether_addr(vf->default_lan_addr.addr)) { |
| 745 | f = i40e_add_mac_filter(vsi, |
| 746 | vf->default_lan_addr.addr); |
| 747 | if (!f) |
| 748 | dev_info(&pf->pdev->dev, |
| 749 | "Could not add MAC filter %pM for VF %d\n", |
| 750 | vf->default_lan_addr.addr, vf->vf_id); |
| 751 | } |
| 752 | eth_broadcast_addr(broadcast); |
| 753 | f = i40e_add_mac_filter(vsi, broadcast); |
| 754 | if (!f) |
| 755 | dev_info(&pf->pdev->dev, |
| 756 | "Could not allocate VF broadcast filter\n"); |
| 757 | spin_unlock_bh(&vsi->mac_filter_hash_lock); |
| 758 | wr32(&pf->hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)hena); |
| 759 | wr32(&pf->hw, I40E_VFQF_HENA1(1, vf->vf_id), (u32)(hena >> 32)); |
| 760 | /* program mac filter only for VF VSI */ |
| 761 | ret = i40e_sync_vsi_filters(vsi); |
| 762 | if (ret) |
| 763 | dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); |
| 764 | } |
| 765 | |
| 766 | /* storing VSI index and id for ADq and don't apply the mac filter */ |
| 767 | if (vf->adq_enabled) { |
| 768 | vf->ch[idx].vsi_idx = vsi->idx; |
| 769 | vf->ch[idx].vsi_id = vsi->id; |
| 770 | } |
| 771 | |
| 772 | /* Set VF bandwidth if specified */ |
| 773 | if (vf->tx_rate) { |
| 774 | max_tx_rate = vf->tx_rate; |
| 775 | } else if (vf->ch[idx].max_tx_rate) { |
| 776 | max_tx_rate = vf->ch[idx].max_tx_rate; |
| 777 | } |
| 778 | |
| 779 | if (max_tx_rate) { |
| 780 | max_tx_rate = div_u64(max_tx_rate, I40E_BW_CREDIT_DIVISOR); |
| 781 | ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid, |
| 782 | max_tx_rate, 0, NULL); |
| 783 | if (ret) |
| 784 | dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n", |
| 785 | vf->vf_id, ret); |
| 786 | } |
| 787 | |
| 788 | error_alloc_vsi_res: |
| 789 | return ret; |
| 790 | } |
| 791 | |
| 792 | /** |
| 793 | * i40e_map_pf_queues_to_vsi |
| 794 | * @vf: pointer to the VF info |
| 795 | * |
| 796 | * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This |
| 797 | * function takes care of first part VSILAN_QTABLE, mapping pf queues to VSI. |
| 798 | **/ |
| 799 | static void i40e_map_pf_queues_to_vsi(struct i40e_vf *vf) |
| 800 | { |
| 801 | struct i40e_pf *pf = vf->pf; |
| 802 | struct i40e_hw *hw = &pf->hw; |
| 803 | u32 reg, num_tc = 1; /* VF has at least one traffic class */ |
| 804 | u16 vsi_id, qps; |
| 805 | int i, j; |
| 806 | |
| 807 | if (vf->adq_enabled) |
| 808 | num_tc = vf->num_tc; |
| 809 | |
| 810 | for (i = 0; i < num_tc; i++) { |
| 811 | if (vf->adq_enabled) { |
| 812 | qps = vf->ch[i].num_qps; |
| 813 | vsi_id = vf->ch[i].vsi_id; |
| 814 | } else { |
| 815 | qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; |
| 816 | vsi_id = vf->lan_vsi_id; |
| 817 | } |
| 818 | |
| 819 | for (j = 0; j < 7; j++) { |
| 820 | if (j * 2 >= qps) { |
| 821 | /* end of list */ |
| 822 | reg = 0x07FF07FF; |
| 823 | } else { |
| 824 | u16 qid = i40e_vc_get_pf_queue_id(vf, |
| 825 | vsi_id, |
| 826 | j * 2); |
| 827 | reg = qid; |
| 828 | qid = i40e_vc_get_pf_queue_id(vf, vsi_id, |
| 829 | (j * 2) + 1); |
| 830 | reg |= qid << 16; |
| 831 | } |
| 832 | i40e_write_rx_ctl(hw, |
| 833 | I40E_VSILAN_QTABLE(j, vsi_id), |
| 834 | reg); |
| 835 | } |
| 836 | } |
| 837 | } |
| 838 | |
| 839 | /** |
| 840 | * i40e_map_pf_to_vf_queues |
| 841 | * @vf: pointer to the VF info |
| 842 | * |
| 843 | * PF maps LQPs to a VF by programming VSILAN_QTABLE & VPLAN_QTABLE. This |
| 844 | * function takes care of the second part VPLAN_QTABLE & completes VF mappings. |
| 845 | **/ |
| 846 | static void i40e_map_pf_to_vf_queues(struct i40e_vf *vf) |
| 847 | { |
| 848 | struct i40e_pf *pf = vf->pf; |
| 849 | struct i40e_hw *hw = &pf->hw; |
| 850 | u32 reg, total_qps = 0; |
| 851 | u32 qps, num_tc = 1; /* VF has at least one traffic class */ |
| 852 | u16 vsi_id, qid; |
| 853 | int i, j; |
| 854 | |
| 855 | if (vf->adq_enabled) |
| 856 | num_tc = vf->num_tc; |
| 857 | |
| 858 | for (i = 0; i < num_tc; i++) { |
| 859 | if (vf->adq_enabled) { |
| 860 | qps = vf->ch[i].num_qps; |
| 861 | vsi_id = vf->ch[i].vsi_id; |
| 862 | } else { |
| 863 | qps = pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; |
| 864 | vsi_id = vf->lan_vsi_id; |
| 865 | } |
| 866 | |
| 867 | for (j = 0; j < qps; j++) { |
| 868 | qid = i40e_vc_get_pf_queue_id(vf, vsi_id, j); |
| 869 | |
| 870 | reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK); |
| 871 | wr32(hw, I40E_VPLAN_QTABLE(total_qps, vf->vf_id), |
| 872 | reg); |
| 873 | total_qps++; |
| 874 | } |
| 875 | } |
| 876 | } |
| 877 | |
| 878 | /** |
| 879 | * i40e_enable_vf_mappings |
| 880 | * @vf: pointer to the VF info |
| 881 | * |
| 882 | * enable VF mappings |
| 883 | **/ |
| 884 | static void i40e_enable_vf_mappings(struct i40e_vf *vf) |
| 885 | { |
| 886 | struct i40e_pf *pf = vf->pf; |
| 887 | struct i40e_hw *hw = &pf->hw; |
| 888 | u32 reg; |
| 889 | |
| 890 | /* Tell the hardware we're using noncontiguous mapping. HW requires |
| 891 | * that VF queues be mapped using this method, even when they are |
| 892 | * contiguous in real life |
| 893 | */ |
| 894 | i40e_write_rx_ctl(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id), |
| 895 | I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK); |
| 896 | |
| 897 | /* enable VF vplan_qtable mappings */ |
| 898 | reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK; |
| 899 | wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg); |
| 900 | |
| 901 | i40e_map_pf_to_vf_queues(vf); |
| 902 | i40e_map_pf_queues_to_vsi(vf); |
| 903 | |
| 904 | i40e_flush(hw); |
| 905 | } |
| 906 | |
| 907 | /** |
| 908 | * i40e_disable_vf_mappings |
| 909 | * @vf: pointer to the VF info |
| 910 | * |
| 911 | * disable VF mappings |
| 912 | **/ |
| 913 | static void i40e_disable_vf_mappings(struct i40e_vf *vf) |
| 914 | { |
| 915 | struct i40e_pf *pf = vf->pf; |
| 916 | struct i40e_hw *hw = &pf->hw; |
| 917 | int i; |
| 918 | |
| 919 | /* disable qp mappings */ |
| 920 | wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0); |
| 921 | for (i = 0; i < I40E_MAX_VSI_QP; i++) |
| 922 | wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id), |
| 923 | I40E_QUEUE_END_OF_LIST); |
| 924 | i40e_flush(hw); |
| 925 | } |
| 926 | |
| 927 | /** |
| 928 | * i40e_free_vf_res |
| 929 | * @vf: pointer to the VF info |
| 930 | * |
| 931 | * free VF resources |
| 932 | **/ |
| 933 | static void i40e_free_vf_res(struct i40e_vf *vf) |
| 934 | { |
| 935 | struct i40e_pf *pf = vf->pf; |
| 936 | struct i40e_hw *hw = &pf->hw; |
| 937 | u32 reg_idx, reg; |
| 938 | int i, j, msix_vf; |
| 939 | |
| 940 | /* Start by disabling VF's configuration API to prevent the OS from |
| 941 | * accessing the VF's VSI after it's freed / invalidated. |
| 942 | */ |
| 943 | clear_bit(I40E_VF_STATE_INIT, &vf->vf_states); |
| 944 | |
| 945 | /* It's possible the VF had requeuested more queues than the default so |
| 946 | * do the accounting here when we're about to free them. |
| 947 | */ |
| 948 | if (vf->num_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF) { |
| 949 | pf->queues_left += vf->num_queue_pairs - |
| 950 | I40E_DEFAULT_QUEUES_PER_VF; |
| 951 | } |
| 952 | |
| 953 | /* free vsi & disconnect it from the parent uplink */ |
| 954 | if (vf->lan_vsi_idx) { |
| 955 | i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]); |
| 956 | vf->lan_vsi_idx = 0; |
| 957 | vf->lan_vsi_id = 0; |
| 958 | } |
| 959 | |
| 960 | /* do the accounting and remove additional ADq VSI's */ |
| 961 | if (vf->adq_enabled && vf->ch[0].vsi_idx) { |
| 962 | for (j = 0; j < vf->num_tc; j++) { |
| 963 | /* At this point VSI0 is already released so don't |
| 964 | * release it again and only clear their values in |
| 965 | * structure variables |
| 966 | */ |
| 967 | if (j) |
| 968 | i40e_vsi_release(pf->vsi[vf->ch[j].vsi_idx]); |
| 969 | vf->ch[j].vsi_idx = 0; |
| 970 | vf->ch[j].vsi_id = 0; |
| 971 | } |
| 972 | } |
| 973 | msix_vf = pf->hw.func_caps.num_msix_vectors_vf; |
| 974 | |
| 975 | /* disable interrupts so the VF starts in a known state */ |
| 976 | for (i = 0; i < msix_vf; i++) { |
| 977 | /* format is same for both registers */ |
| 978 | if (0 == i) |
| 979 | reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id); |
| 980 | else |
| 981 | reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) * |
| 982 | (vf->vf_id)) |
| 983 | + (i - 1)); |
| 984 | wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK); |
| 985 | i40e_flush(hw); |
| 986 | } |
| 987 | |
| 988 | /* clear the irq settings */ |
| 989 | for (i = 0; i < msix_vf; i++) { |
| 990 | /* format is same for both registers */ |
| 991 | if (0 == i) |
| 992 | reg_idx = I40E_VPINT_LNKLST0(vf->vf_id); |
| 993 | else |
| 994 | reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) * |
| 995 | (vf->vf_id)) |
| 996 | + (i - 1)); |
| 997 | reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK | |
| 998 | I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK); |
| 999 | wr32(hw, reg_idx, reg); |
| 1000 | i40e_flush(hw); |
| 1001 | } |
| 1002 | /* reset some of the state variables keeping track of the resources */ |
| 1003 | vf->num_queue_pairs = 0; |
| 1004 | clear_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states); |
| 1005 | clear_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states); |
| 1006 | } |
| 1007 | |
| 1008 | /** |
| 1009 | * i40e_alloc_vf_res |
| 1010 | * @vf: pointer to the VF info |
| 1011 | * |
| 1012 | * allocate VF resources |
| 1013 | **/ |
| 1014 | static int i40e_alloc_vf_res(struct i40e_vf *vf) |
| 1015 | { |
| 1016 | struct i40e_pf *pf = vf->pf; |
| 1017 | int total_queue_pairs = 0; |
| 1018 | int ret, idx; |
| 1019 | |
| 1020 | if (vf->num_req_queues && |
| 1021 | vf->num_req_queues <= pf->queues_left + I40E_DEFAULT_QUEUES_PER_VF) |
| 1022 | pf->num_vf_qps = vf->num_req_queues; |
| 1023 | else |
| 1024 | pf->num_vf_qps = I40E_DEFAULT_QUEUES_PER_VF; |
| 1025 | |
| 1026 | /* allocate hw vsi context & associated resources */ |
| 1027 | ret = i40e_alloc_vsi_res(vf, 0); |
| 1028 | if (ret) |
| 1029 | goto error_alloc; |
| 1030 | total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; |
| 1031 | |
| 1032 | /* allocate additional VSIs based on tc information for ADq */ |
| 1033 | if (vf->adq_enabled) { |
| 1034 | if (pf->queues_left >= |
| 1035 | (I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF)) { |
| 1036 | /* TC 0 always belongs to VF VSI */ |
| 1037 | for (idx = 1; idx < vf->num_tc; idx++) { |
| 1038 | ret = i40e_alloc_vsi_res(vf, idx); |
| 1039 | if (ret) |
| 1040 | goto error_alloc; |
| 1041 | } |
| 1042 | /* send correct number of queues */ |
| 1043 | total_queue_pairs = I40E_MAX_VF_QUEUES; |
| 1044 | } else { |
| 1045 | dev_info(&pf->pdev->dev, "VF %d: Not enough queues to allocate, disabling ADq\n", |
| 1046 | vf->vf_id); |
| 1047 | vf->adq_enabled = false; |
| 1048 | } |
| 1049 | } |
| 1050 | |
| 1051 | /* We account for each VF to get a default number of queue pairs. If |
| 1052 | * the VF has now requested more, we need to account for that to make |
| 1053 | * certain we never request more queues than we actually have left in |
| 1054 | * HW. |
| 1055 | */ |
| 1056 | if (total_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF) |
| 1057 | pf->queues_left -= |
| 1058 | total_queue_pairs - I40E_DEFAULT_QUEUES_PER_VF; |
| 1059 | |
| 1060 | if (vf->trusted) |
| 1061 | set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); |
| 1062 | else |
| 1063 | clear_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps); |
| 1064 | |
| 1065 | /* store the total qps number for the runtime |
| 1066 | * VF req validation |
| 1067 | */ |
| 1068 | vf->num_queue_pairs = total_queue_pairs; |
| 1069 | |
| 1070 | /* VF is now completely initialized */ |
| 1071 | set_bit(I40E_VF_STATE_INIT, &vf->vf_states); |
| 1072 | |
| 1073 | error_alloc: |
| 1074 | if (ret) |
| 1075 | i40e_free_vf_res(vf); |
| 1076 | |
| 1077 | return ret; |
| 1078 | } |
| 1079 | |
| 1080 | #define VF_DEVICE_STATUS 0xAA |
| 1081 | #define VF_TRANS_PENDING_MASK 0x20 |
| 1082 | /** |
| 1083 | * i40e_quiesce_vf_pci |
| 1084 | * @vf: pointer to the VF structure |
| 1085 | * |
| 1086 | * Wait for VF PCI transactions to be cleared after reset. Returns -EIO |
| 1087 | * if the transactions never clear. |
| 1088 | **/ |
| 1089 | static int i40e_quiesce_vf_pci(struct i40e_vf *vf) |
| 1090 | { |
| 1091 | struct i40e_pf *pf = vf->pf; |
| 1092 | struct i40e_hw *hw = &pf->hw; |
| 1093 | int vf_abs_id, i; |
| 1094 | u32 reg; |
| 1095 | |
| 1096 | vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id; |
| 1097 | |
| 1098 | wr32(hw, I40E_PF_PCI_CIAA, |
| 1099 | VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT)); |
| 1100 | for (i = 0; i < 100; i++) { |
| 1101 | reg = rd32(hw, I40E_PF_PCI_CIAD); |
| 1102 | if ((reg & VF_TRANS_PENDING_MASK) == 0) |
| 1103 | return 0; |
| 1104 | udelay(1); |
| 1105 | } |
| 1106 | return -EIO; |
| 1107 | } |
| 1108 | |
| 1109 | /** |
| 1110 | * i40e_getnum_vf_vsi_vlan_filters |
| 1111 | * @vsi: pointer to the vsi |
| 1112 | * |
| 1113 | * called to get the number of VLANs offloaded on this VF |
| 1114 | **/ |
| 1115 | static int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi) |
| 1116 | { |
| 1117 | struct i40e_mac_filter *f; |
| 1118 | int num_vlans = 0, bkt; |
| 1119 | |
| 1120 | hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { |
| 1121 | if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID) |
| 1122 | num_vlans++; |
| 1123 | } |
| 1124 | |
| 1125 | return num_vlans; |
| 1126 | } |
| 1127 | |
| 1128 | /** |
| 1129 | * i40e_get_vlan_list_sync |
| 1130 | * @vsi: pointer to the VSI |
| 1131 | * @num_vlans: number of VLANs in mac_filter_hash, returned to caller |
| 1132 | * @vlan_list: list of VLANs present in mac_filter_hash, returned to caller. |
| 1133 | * This array is allocated here, but has to be freed in caller. |
| 1134 | * |
| 1135 | * Called to get number of VLANs and VLAN list present in mac_filter_hash. |
| 1136 | **/ |
| 1137 | static void i40e_get_vlan_list_sync(struct i40e_vsi *vsi, int *num_vlans, |
| 1138 | s16 **vlan_list) |
| 1139 | { |
| 1140 | struct i40e_mac_filter *f; |
| 1141 | int i = 0; |
| 1142 | int bkt; |
| 1143 | |
| 1144 | spin_lock_bh(&vsi->mac_filter_hash_lock); |
| 1145 | *num_vlans = i40e_getnum_vf_vsi_vlan_filters(vsi); |
| 1146 | *vlan_list = kcalloc(*num_vlans, sizeof(**vlan_list), GFP_ATOMIC); |
| 1147 | if (!(*vlan_list)) |
| 1148 | goto err; |
| 1149 | |
| 1150 | hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) { |
| 1151 | if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID) |
| 1152 | continue; |
| 1153 | (*vlan_list)[i++] = f->vlan; |
| 1154 | } |
| 1155 | err: |
| 1156 | spin_unlock_bh(&vsi->mac_filter_hash_lock); |
| 1157 | } |
| 1158 | |
| 1159 | /** |
| 1160 | * i40e_set_vsi_promisc |
| 1161 | * @vf: pointer to the VF struct |
| 1162 | * @seid: VSI number |
| 1163 | * @multi_enable: set MAC L2 layer multicast promiscuous enable/disable |
| 1164 | * for a given VLAN |
| 1165 | * @unicast_enable: set MAC L2 layer unicast promiscuous enable/disable |
| 1166 | * for a given VLAN |
| 1167 | * @vl: List of VLANs - apply filter for given VLANs |
| 1168 | * @num_vlans: Number of elements in @vl |
| 1169 | **/ |
| 1170 | static i40e_status |
| 1171 | i40e_set_vsi_promisc(struct i40e_vf *vf, u16 seid, bool multi_enable, |
| 1172 | bool unicast_enable, s16 *vl, int num_vlans) |
| 1173 | { |
| 1174 | struct i40e_pf *pf = vf->pf; |
| 1175 | struct i40e_hw *hw = &pf->hw; |
| 1176 | i40e_status aq_ret; |
| 1177 | int i; |
| 1178 | |
| 1179 | /* No VLAN to set promisc on, set on VSI */ |
| 1180 | if (!num_vlans || !vl) { |
| 1181 | aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, seid, |
| 1182 | multi_enable, |
| 1183 | NULL); |
| 1184 | if (aq_ret) { |
| 1185 | int aq_err = pf->hw.aq.asq_last_status; |
| 1186 | |
| 1187 | dev_err(&pf->pdev->dev, |
| 1188 | "VF %d failed to set multicast promiscuous mode err %s aq_err %s\n", |
| 1189 | vf->vf_id, |
| 1190 | i40e_stat_str(&pf->hw, aq_ret), |
| 1191 | i40e_aq_str(&pf->hw, aq_err)); |
| 1192 | |
| 1193 | return aq_ret; |
| 1194 | } |
| 1195 | |
| 1196 | aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, seid, |
| 1197 | unicast_enable, |
| 1198 | NULL, true); |
| 1199 | |
| 1200 | if (aq_ret) { |
| 1201 | int aq_err = pf->hw.aq.asq_last_status; |
| 1202 | |
| 1203 | dev_err(&pf->pdev->dev, |
| 1204 | "VF %d failed to set unicast promiscuous mode err %s aq_err %s\n", |
| 1205 | vf->vf_id, |
| 1206 | i40e_stat_str(&pf->hw, aq_ret), |
| 1207 | i40e_aq_str(&pf->hw, aq_err)); |
| 1208 | } |
| 1209 | |
| 1210 | return aq_ret; |
| 1211 | } |
| 1212 | |
| 1213 | for (i = 0; i < num_vlans; i++) { |
| 1214 | aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, seid, |
| 1215 | multi_enable, |
| 1216 | vl[i], NULL); |
| 1217 | if (aq_ret) { |
| 1218 | int aq_err = pf->hw.aq.asq_last_status; |
| 1219 | |
| 1220 | dev_err(&pf->pdev->dev, |
| 1221 | "VF %d failed to set multicast promiscuous mode err %s aq_err %s\n", |
| 1222 | vf->vf_id, |
| 1223 | i40e_stat_str(&pf->hw, aq_ret), |
| 1224 | i40e_aq_str(&pf->hw, aq_err)); |
| 1225 | } |
| 1226 | |
| 1227 | aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, seid, |
| 1228 | unicast_enable, |
| 1229 | vl[i], NULL); |
| 1230 | if (aq_ret) { |
| 1231 | int aq_err = pf->hw.aq.asq_last_status; |
| 1232 | |
| 1233 | dev_err(&pf->pdev->dev, |
| 1234 | "VF %d failed to set unicast promiscuous mode err %s aq_err %s\n", |
| 1235 | vf->vf_id, |
| 1236 | i40e_stat_str(&pf->hw, aq_ret), |
| 1237 | i40e_aq_str(&pf->hw, aq_err)); |
| 1238 | } |
| 1239 | } |
| 1240 | return aq_ret; |
| 1241 | } |
| 1242 | |
| 1243 | /** |
| 1244 | * i40e_config_vf_promiscuous_mode |
| 1245 | * @vf: pointer to the VF info |
| 1246 | * @vsi_id: VSI id |
| 1247 | * @allmulti: set MAC L2 layer multicast promiscuous enable/disable |
| 1248 | * @alluni: set MAC L2 layer unicast promiscuous enable/disable |
| 1249 | * |
| 1250 | * Called from the VF to configure the promiscuous mode of |
| 1251 | * VF vsis and from the VF reset path to reset promiscuous mode. |
| 1252 | **/ |
| 1253 | static i40e_status i40e_config_vf_promiscuous_mode(struct i40e_vf *vf, |
| 1254 | u16 vsi_id, |
| 1255 | bool allmulti, |
| 1256 | bool alluni) |
| 1257 | { |
| 1258 | i40e_status aq_ret = I40E_SUCCESS; |
| 1259 | struct i40e_pf *pf = vf->pf; |
| 1260 | struct i40e_vsi *vsi; |
| 1261 | int num_vlans; |
| 1262 | s16 *vl; |
| 1263 | |
| 1264 | vsi = i40e_find_vsi_from_id(pf, vsi_id); |
| 1265 | if (!i40e_vc_isvalid_vsi_id(vf, vsi_id) || !vsi) |
| 1266 | return I40E_ERR_PARAM; |
| 1267 | |
| 1268 | if (vf->port_vlan_id) { |
| 1269 | aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, |
| 1270 | alluni, &vf->port_vlan_id, 1); |
| 1271 | return aq_ret; |
| 1272 | } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) { |
| 1273 | i40e_get_vlan_list_sync(vsi, &num_vlans, &vl); |
| 1274 | |
| 1275 | if (!vl) |
| 1276 | return I40E_ERR_NO_MEMORY; |
| 1277 | |
| 1278 | aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni, |
| 1279 | vl, num_vlans); |
| 1280 | kfree(vl); |
| 1281 | return aq_ret; |
| 1282 | } |
| 1283 | |
| 1284 | /* no VLANs to set on, set on VSI */ |
| 1285 | aq_ret = i40e_set_vsi_promisc(vf, vsi->seid, allmulti, alluni, |
| 1286 | NULL, 0); |
| 1287 | return aq_ret; |
| 1288 | } |
| 1289 | |
| 1290 | /** |
| 1291 | * i40e_trigger_vf_reset |
| 1292 | * @vf: pointer to the VF structure |
| 1293 | * @flr: VFLR was issued or not |
| 1294 | * |
| 1295 | * Trigger hardware to start a reset for a particular VF. Expects the caller |
| 1296 | * to wait the proper amount of time to allow hardware to reset the VF before |
| 1297 | * it cleans up and restores VF functionality. |
| 1298 | **/ |
| 1299 | static void i40e_trigger_vf_reset(struct i40e_vf *vf, bool flr) |
| 1300 | { |
| 1301 | struct i40e_pf *pf = vf->pf; |
| 1302 | struct i40e_hw *hw = &pf->hw; |
| 1303 | u32 reg, reg_idx, bit_idx; |
| 1304 | |
| 1305 | /* warn the VF */ |
| 1306 | clear_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); |
| 1307 | |
| 1308 | /* Disable VF's configuration API during reset. The flag is re-enabled |
| 1309 | * in i40e_alloc_vf_res(), when it's safe again to access VF's VSI. |
| 1310 | * It's normally disabled in i40e_free_vf_res(), but it's safer |
| 1311 | * to do it earlier to give some time to finish to any VF config |
| 1312 | * functions that may still be running at this point. |
| 1313 | */ |
| 1314 | clear_bit(I40E_VF_STATE_INIT, &vf->vf_states); |
| 1315 | |
| 1316 | /* In the case of a VFLR, the HW has already reset the VF and we |
| 1317 | * just need to clean up, so don't hit the VFRTRIG register. |
| 1318 | */ |
| 1319 | if (!flr) { |
| 1320 | /* reset VF using VPGEN_VFRTRIG reg */ |
| 1321 | reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); |
| 1322 | reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK; |
| 1323 | wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); |
| 1324 | i40e_flush(hw); |
| 1325 | } |
| 1326 | /* clear the VFLR bit in GLGEN_VFLRSTAT */ |
| 1327 | reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32; |
| 1328 | bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32; |
| 1329 | wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); |
| 1330 | i40e_flush(hw); |
| 1331 | |
| 1332 | if (i40e_quiesce_vf_pci(vf)) |
| 1333 | dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n", |
| 1334 | vf->vf_id); |
| 1335 | } |
| 1336 | |
| 1337 | /** |
| 1338 | * i40e_cleanup_reset_vf |
| 1339 | * @vf: pointer to the VF structure |
| 1340 | * |
| 1341 | * Cleanup a VF after the hardware reset is finished. Expects the caller to |
| 1342 | * have verified whether the reset is finished properly, and ensure the |
| 1343 | * minimum amount of wait time has passed. |
| 1344 | **/ |
| 1345 | static void i40e_cleanup_reset_vf(struct i40e_vf *vf) |
| 1346 | { |
| 1347 | struct i40e_pf *pf = vf->pf; |
| 1348 | struct i40e_hw *hw = &pf->hw; |
| 1349 | u32 reg; |
| 1350 | |
| 1351 | /* disable promisc modes in case they were enabled */ |
| 1352 | i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, false, false); |
| 1353 | |
| 1354 | /* free VF resources to begin resetting the VSI state */ |
| 1355 | i40e_free_vf_res(vf); |
| 1356 | |
| 1357 | /* Enable hardware by clearing the reset bit in the VPGEN_VFRTRIG reg. |
| 1358 | * By doing this we allow HW to access VF memory at any point. If we |
| 1359 | * did it any sooner, HW could access memory while it was being freed |
| 1360 | * in i40e_free_vf_res(), causing an IOMMU fault. |
| 1361 | * |
| 1362 | * On the other hand, this needs to be done ASAP, because the VF driver |
| 1363 | * is waiting for this to happen and may report a timeout. It's |
| 1364 | * harmless, but it gets logged into Guest OS kernel log, so best avoid |
| 1365 | * it. |
| 1366 | */ |
| 1367 | reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id)); |
| 1368 | reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK; |
| 1369 | wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg); |
| 1370 | |
| 1371 | /* reallocate VF resources to finish resetting the VSI state */ |
| 1372 | if (!i40e_alloc_vf_res(vf)) { |
| 1373 | int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; |
| 1374 | i40e_enable_vf_mappings(vf); |
| 1375 | set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); |
| 1376 | clear_bit(I40E_VF_STATE_DISABLED, &vf->vf_states); |
| 1377 | /* Do not notify the client during VF init */ |
| 1378 | if (!test_and_clear_bit(I40E_VF_STATE_PRE_ENABLE, |
| 1379 | &vf->vf_states)) |
| 1380 | i40e_notify_client_of_vf_reset(pf, abs_vf_id); |
| 1381 | vf->num_vlan = 0; |
| 1382 | } |
| 1383 | |
| 1384 | /* Tell the VF driver the reset is done. This needs to be done only |
| 1385 | * after VF has been fully initialized, because the VF driver may |
| 1386 | * request resources immediately after setting this flag. |
| 1387 | */ |
| 1388 | wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), VIRTCHNL_VFR_VFACTIVE); |
| 1389 | } |
| 1390 | |
| 1391 | /** |
| 1392 | * i40e_reset_vf |
| 1393 | * @vf: pointer to the VF structure |
| 1394 | * @flr: VFLR was issued or not |
| 1395 | * |
| 1396 | * Returns true if the VF is reset, false otherwise. |
| 1397 | **/ |
| 1398 | bool i40e_reset_vf(struct i40e_vf *vf, bool flr) |
| 1399 | { |
| 1400 | struct i40e_pf *pf = vf->pf; |
| 1401 | struct i40e_hw *hw = &pf->hw; |
| 1402 | bool rsd = false; |
| 1403 | u32 reg; |
| 1404 | int i; |
| 1405 | |
| 1406 | /* If the VFs have been disabled, this means something else is |
| 1407 | * resetting the VF, so we shouldn't continue. |
| 1408 | */ |
| 1409 | if (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) |
| 1410 | return false; |
| 1411 | |
| 1412 | i40e_trigger_vf_reset(vf, flr); |
| 1413 | |
| 1414 | /* poll VPGEN_VFRSTAT reg to make sure |
| 1415 | * that reset is complete |
| 1416 | */ |
| 1417 | for (i = 0; i < 10; i++) { |
| 1418 | /* VF reset requires driver to first reset the VF and then |
| 1419 | * poll the status register to make sure that the reset |
| 1420 | * completed successfully. Due to internal HW FIFO flushes, |
| 1421 | * we must wait 10ms before the register will be valid. |
| 1422 | */ |
| 1423 | usleep_range(10000, 20000); |
| 1424 | reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); |
| 1425 | if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) { |
| 1426 | rsd = true; |
| 1427 | break; |
| 1428 | } |
| 1429 | } |
| 1430 | |
| 1431 | if (flr) |
| 1432 | usleep_range(10000, 20000); |
| 1433 | |
| 1434 | if (!rsd) |
| 1435 | dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", |
| 1436 | vf->vf_id); |
| 1437 | usleep_range(10000, 20000); |
| 1438 | |
| 1439 | /* On initial reset, we don't have any queues to disable */ |
| 1440 | if (vf->lan_vsi_idx != 0) |
| 1441 | i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]); |
| 1442 | |
| 1443 | i40e_cleanup_reset_vf(vf); |
| 1444 | |
| 1445 | i40e_flush(hw); |
| 1446 | clear_bit(__I40E_VF_DISABLE, pf->state); |
| 1447 | |
| 1448 | return true; |
| 1449 | } |
| 1450 | |
| 1451 | /** |
| 1452 | * i40e_reset_all_vfs |
| 1453 | * @pf: pointer to the PF structure |
| 1454 | * @flr: VFLR was issued or not |
| 1455 | * |
| 1456 | * Reset all allocated VFs in one go. First, tell the hardware to reset each |
| 1457 | * VF, then do all the waiting in one chunk, and finally finish restoring each |
| 1458 | * VF after the wait. This is useful during PF routines which need to reset |
| 1459 | * all VFs, as otherwise it must perform these resets in a serialized fashion. |
| 1460 | * |
| 1461 | * Returns true if any VFs were reset, and false otherwise. |
| 1462 | **/ |
| 1463 | bool i40e_reset_all_vfs(struct i40e_pf *pf, bool flr) |
| 1464 | { |
| 1465 | struct i40e_hw *hw = &pf->hw; |
| 1466 | struct i40e_vf *vf; |
| 1467 | int i, v; |
| 1468 | u32 reg; |
| 1469 | |
| 1470 | /* If we don't have any VFs, then there is nothing to reset */ |
| 1471 | if (!pf->num_alloc_vfs) |
| 1472 | return false; |
| 1473 | |
| 1474 | /* If VFs have been disabled, there is no need to reset */ |
| 1475 | if (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) |
| 1476 | return false; |
| 1477 | |
| 1478 | /* Begin reset on all VFs at once */ |
| 1479 | for (v = 0; v < pf->num_alloc_vfs; v++) |
| 1480 | i40e_trigger_vf_reset(&pf->vf[v], flr); |
| 1481 | |
| 1482 | /* HW requires some time to make sure it can flush the FIFO for a VF |
| 1483 | * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in |
| 1484 | * sequence to make sure that it has completed. We'll keep track of |
| 1485 | * the VFs using a simple iterator that increments once that VF has |
| 1486 | * finished resetting. |
| 1487 | */ |
| 1488 | for (i = 0, v = 0; i < 10 && v < pf->num_alloc_vfs; i++) { |
| 1489 | usleep_range(10000, 20000); |
| 1490 | |
| 1491 | /* Check each VF in sequence, beginning with the VF to fail |
| 1492 | * the previous check. |
| 1493 | */ |
| 1494 | while (v < pf->num_alloc_vfs) { |
| 1495 | vf = &pf->vf[v]; |
| 1496 | reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id)); |
| 1497 | if (!(reg & I40E_VPGEN_VFRSTAT_VFRD_MASK)) |
| 1498 | break; |
| 1499 | |
| 1500 | /* If the current VF has finished resetting, move on |
| 1501 | * to the next VF in sequence. |
| 1502 | */ |
| 1503 | v++; |
| 1504 | } |
| 1505 | } |
| 1506 | |
| 1507 | if (flr) |
| 1508 | usleep_range(10000, 20000); |
| 1509 | |
| 1510 | /* Display a warning if at least one VF didn't manage to reset in |
| 1511 | * time, but continue on with the operation. |
| 1512 | */ |
| 1513 | if (v < pf->num_alloc_vfs) |
| 1514 | dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n", |
| 1515 | pf->vf[v].vf_id); |
| 1516 | usleep_range(10000, 20000); |
| 1517 | |
| 1518 | /* Begin disabling all the rings associated with VFs, but do not wait |
| 1519 | * between each VF. |
| 1520 | */ |
| 1521 | for (v = 0; v < pf->num_alloc_vfs; v++) { |
| 1522 | /* On initial reset, we don't have any queues to disable */ |
| 1523 | if (pf->vf[v].lan_vsi_idx == 0) |
| 1524 | continue; |
| 1525 | |
| 1526 | i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[v].lan_vsi_idx]); |
| 1527 | } |
| 1528 | |
| 1529 | /* Now that we've notified HW to disable all of the VF rings, wait |
| 1530 | * until they finish. |
| 1531 | */ |
| 1532 | for (v = 0; v < pf->num_alloc_vfs; v++) { |
| 1533 | /* On initial reset, we don't have any queues to disable */ |
| 1534 | if (pf->vf[v].lan_vsi_idx == 0) |
| 1535 | continue; |
| 1536 | |
| 1537 | i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[v].lan_vsi_idx]); |
| 1538 | } |
| 1539 | |
| 1540 | /* Hw may need up to 50ms to finish disabling the RX queues. We |
| 1541 | * minimize the wait by delaying only once for all VFs. |
| 1542 | */ |
| 1543 | mdelay(50); |
| 1544 | |
| 1545 | /* Finish the reset on each VF */ |
| 1546 | for (v = 0; v < pf->num_alloc_vfs; v++) |
| 1547 | i40e_cleanup_reset_vf(&pf->vf[v]); |
| 1548 | |
| 1549 | i40e_flush(hw); |
| 1550 | clear_bit(__I40E_VF_DISABLE, pf->state); |
| 1551 | |
| 1552 | return true; |
| 1553 | } |
| 1554 | |
| 1555 | /** |
| 1556 | * i40e_free_vfs |
| 1557 | * @pf: pointer to the PF structure |
| 1558 | * |
| 1559 | * free VF resources |
| 1560 | **/ |
| 1561 | void i40e_free_vfs(struct i40e_pf *pf) |
| 1562 | { |
| 1563 | struct i40e_hw *hw = &pf->hw; |
| 1564 | u32 reg_idx, bit_idx; |
| 1565 | int i, tmp, vf_id; |
| 1566 | |
| 1567 | if (!pf->vf) |
| 1568 | return; |
| 1569 | while (test_and_set_bit(__I40E_VF_DISABLE, pf->state)) |
| 1570 | usleep_range(1000, 2000); |
| 1571 | |
| 1572 | i40e_notify_client_of_vf_enable(pf, 0); |
| 1573 | |
| 1574 | /* Amortize wait time by stopping all VFs at the same time */ |
| 1575 | for (i = 0; i < pf->num_alloc_vfs; i++) { |
| 1576 | if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) |
| 1577 | continue; |
| 1578 | |
| 1579 | i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[i].lan_vsi_idx]); |
| 1580 | } |
| 1581 | |
| 1582 | for (i = 0; i < pf->num_alloc_vfs; i++) { |
| 1583 | if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) |
| 1584 | continue; |
| 1585 | |
| 1586 | i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[i].lan_vsi_idx]); |
| 1587 | } |
| 1588 | |
| 1589 | /* Disable IOV before freeing resources. This lets any VF drivers |
| 1590 | * running in the host get themselves cleaned up before we yank |
| 1591 | * the carpet out from underneath their feet. |
| 1592 | */ |
| 1593 | if (!pci_vfs_assigned(pf->pdev)) |
| 1594 | pci_disable_sriov(pf->pdev); |
| 1595 | else |
| 1596 | dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n"); |
| 1597 | |
| 1598 | /* free up VF resources */ |
| 1599 | tmp = pf->num_alloc_vfs; |
| 1600 | pf->num_alloc_vfs = 0; |
| 1601 | for (i = 0; i < tmp; i++) { |
| 1602 | if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states)) |
| 1603 | i40e_free_vf_res(&pf->vf[i]); |
| 1604 | /* disable qp mappings */ |
| 1605 | i40e_disable_vf_mappings(&pf->vf[i]); |
| 1606 | } |
| 1607 | |
| 1608 | kfree(pf->vf); |
| 1609 | pf->vf = NULL; |
| 1610 | |
| 1611 | /* This check is for when the driver is unloaded while VFs are |
| 1612 | * assigned. Setting the number of VFs to 0 through sysfs is caught |
| 1613 | * before this function ever gets called. |
| 1614 | */ |
| 1615 | if (!pci_vfs_assigned(pf->pdev)) { |
| 1616 | /* Acknowledge VFLR for all VFS. Without this, VFs will fail to |
| 1617 | * work correctly when SR-IOV gets re-enabled. |
| 1618 | */ |
| 1619 | for (vf_id = 0; vf_id < tmp; vf_id++) { |
| 1620 | reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; |
| 1621 | bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; |
| 1622 | wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx)); |
| 1623 | } |
| 1624 | } |
| 1625 | clear_bit(__I40E_VF_DISABLE, pf->state); |
| 1626 | } |
| 1627 | |
| 1628 | #ifdef CONFIG_PCI_IOV |
| 1629 | /** |
| 1630 | * i40e_alloc_vfs |
| 1631 | * @pf: pointer to the PF structure |
| 1632 | * @num_alloc_vfs: number of VFs to allocate |
| 1633 | * |
| 1634 | * allocate VF resources |
| 1635 | **/ |
| 1636 | int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs) |
| 1637 | { |
| 1638 | struct i40e_vf *vfs; |
| 1639 | int i, ret = 0; |
| 1640 | |
| 1641 | /* Disable interrupt 0 so we don't try to handle the VFLR. */ |
| 1642 | i40e_irq_dynamic_disable_icr0(pf); |
| 1643 | |
| 1644 | /* Check to see if we're just allocating resources for extant VFs */ |
| 1645 | if (pci_num_vf(pf->pdev) != num_alloc_vfs) { |
| 1646 | ret = pci_enable_sriov(pf->pdev, num_alloc_vfs); |
| 1647 | if (ret) { |
| 1648 | pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; |
| 1649 | pf->num_alloc_vfs = 0; |
| 1650 | goto err_iov; |
| 1651 | } |
| 1652 | } |
| 1653 | /* allocate memory */ |
| 1654 | vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL); |
| 1655 | if (!vfs) { |
| 1656 | ret = -ENOMEM; |
| 1657 | goto err_alloc; |
| 1658 | } |
| 1659 | pf->vf = vfs; |
| 1660 | |
| 1661 | /* apply default profile */ |
| 1662 | for (i = 0; i < num_alloc_vfs; i++) { |
| 1663 | vfs[i].pf = pf; |
| 1664 | vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB; |
| 1665 | vfs[i].vf_id = i; |
| 1666 | |
| 1667 | /* assign default capabilities */ |
| 1668 | set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps); |
| 1669 | vfs[i].spoofchk = true; |
| 1670 | |
| 1671 | set_bit(I40E_VF_STATE_PRE_ENABLE, &vfs[i].vf_states); |
| 1672 | |
| 1673 | } |
| 1674 | pf->num_alloc_vfs = num_alloc_vfs; |
| 1675 | |
| 1676 | /* VF resources get allocated during reset */ |
| 1677 | i40e_reset_all_vfs(pf, false); |
| 1678 | |
| 1679 | i40e_notify_client_of_vf_enable(pf, num_alloc_vfs); |
| 1680 | |
| 1681 | err_alloc: |
| 1682 | if (ret) |
| 1683 | i40e_free_vfs(pf); |
| 1684 | err_iov: |
| 1685 | /* Re-enable interrupt 0. */ |
| 1686 | i40e_irq_dynamic_enable_icr0(pf); |
| 1687 | return ret; |
| 1688 | } |
| 1689 | |
| 1690 | #endif |
| 1691 | /** |
| 1692 | * i40e_pci_sriov_enable |
| 1693 | * @pdev: pointer to a pci_dev structure |
| 1694 | * @num_vfs: number of VFs to allocate |
| 1695 | * |
| 1696 | * Enable or change the number of VFs |
| 1697 | **/ |
| 1698 | static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs) |
| 1699 | { |
| 1700 | #ifdef CONFIG_PCI_IOV |
| 1701 | struct i40e_pf *pf = pci_get_drvdata(pdev); |
| 1702 | int pre_existing_vfs = pci_num_vf(pdev); |
| 1703 | int err = 0; |
| 1704 | |
| 1705 | if (test_bit(__I40E_TESTING, pf->state)) { |
| 1706 | dev_warn(&pdev->dev, |
| 1707 | "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n"); |
| 1708 | err = -EPERM; |
| 1709 | goto err_out; |
| 1710 | } |
| 1711 | |
| 1712 | if (pre_existing_vfs && pre_existing_vfs != num_vfs) |
| 1713 | i40e_free_vfs(pf); |
| 1714 | else if (pre_existing_vfs && pre_existing_vfs == num_vfs) |
| 1715 | goto out; |
| 1716 | |
| 1717 | if (num_vfs > pf->num_req_vfs) { |
| 1718 | dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n", |
| 1719 | num_vfs, pf->num_req_vfs); |
| 1720 | err = -EPERM; |
| 1721 | goto err_out; |
| 1722 | } |
| 1723 | |
| 1724 | dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs); |
| 1725 | err = i40e_alloc_vfs(pf, num_vfs); |
| 1726 | if (err) { |
| 1727 | dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err); |
| 1728 | goto err_out; |
| 1729 | } |
| 1730 | |
| 1731 | out: |
| 1732 | return num_vfs; |
| 1733 | |
| 1734 | err_out: |
| 1735 | return err; |
| 1736 | #endif |
| 1737 | return 0; |
| 1738 | } |
| 1739 | |
| 1740 | /** |
| 1741 | * i40e_pci_sriov_configure |
| 1742 | * @pdev: pointer to a pci_dev structure |
| 1743 | * @num_vfs: number of VFs to allocate |
| 1744 | * |
| 1745 | * Enable or change the number of VFs. Called when the user updates the number |
| 1746 | * of VFs in sysfs. |
| 1747 | **/ |
| 1748 | int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs) |
| 1749 | { |
| 1750 | struct i40e_pf *pf = pci_get_drvdata(pdev); |
| 1751 | int ret = 0; |
| 1752 | |
| 1753 | if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { |
| 1754 | dev_warn(&pdev->dev, "Unable to configure VFs, other operation is pending.\n"); |
| 1755 | return -EAGAIN; |
| 1756 | } |
| 1757 | |
| 1758 | if (num_vfs) { |
| 1759 | if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) { |
| 1760 | pf->flags |= I40E_FLAG_VEB_MODE_ENABLED; |
| 1761 | i40e_do_reset_safe(pf, I40E_PF_RESET_FLAG); |
| 1762 | } |
| 1763 | ret = i40e_pci_sriov_enable(pdev, num_vfs); |
| 1764 | goto sriov_configure_out; |
| 1765 | } |
| 1766 | |
| 1767 | if (!pci_vfs_assigned(pf->pdev)) { |
| 1768 | i40e_free_vfs(pf); |
| 1769 | pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED; |
| 1770 | i40e_do_reset_safe(pf, I40E_PF_RESET_FLAG); |
| 1771 | } else { |
| 1772 | dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n"); |
| 1773 | ret = -EINVAL; |
| 1774 | goto sriov_configure_out; |
| 1775 | } |
| 1776 | sriov_configure_out: |
| 1777 | clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); |
| 1778 | return ret; |
| 1779 | } |
| 1780 | |
| 1781 | /***********************virtual channel routines******************/ |
| 1782 | |
| 1783 | /** |
| 1784 | * i40e_vc_send_msg_to_vf |
| 1785 | * @vf: pointer to the VF info |
| 1786 | * @v_opcode: virtual channel opcode |
| 1787 | * @v_retval: virtual channel return value |
| 1788 | * @msg: pointer to the msg buffer |
| 1789 | * @msglen: msg length |
| 1790 | * |
| 1791 | * send msg to VF |
| 1792 | **/ |
| 1793 | static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode, |
| 1794 | u32 v_retval, u8 *msg, u16 msglen) |
| 1795 | { |
| 1796 | struct i40e_pf *pf; |
| 1797 | struct i40e_hw *hw; |
| 1798 | int abs_vf_id; |
| 1799 | i40e_status aq_ret; |
| 1800 | |
| 1801 | /* validate the request */ |
| 1802 | if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs) |
| 1803 | return -EINVAL; |
| 1804 | |
| 1805 | pf = vf->pf; |
| 1806 | hw = &pf->hw; |
| 1807 | abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; |
| 1808 | |
| 1809 | /* single place to detect unsuccessful return values */ |
| 1810 | if (v_retval) { |
| 1811 | vf->num_invalid_msgs++; |
| 1812 | dev_info(&pf->pdev->dev, "VF %d failed opcode %d, retval: %d\n", |
| 1813 | vf->vf_id, v_opcode, v_retval); |
| 1814 | if (vf->num_invalid_msgs > |
| 1815 | I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) { |
| 1816 | dev_err(&pf->pdev->dev, |
| 1817 | "Number of invalid messages exceeded for VF %d\n", |
| 1818 | vf->vf_id); |
| 1819 | dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n"); |
| 1820 | set_bit(I40E_VF_STATE_DISABLED, &vf->vf_states); |
| 1821 | } |
| 1822 | } else { |
| 1823 | vf->num_valid_msgs++; |
| 1824 | /* reset the invalid counter, if a valid message is received. */ |
| 1825 | vf->num_invalid_msgs = 0; |
| 1826 | } |
| 1827 | |
| 1828 | aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval, |
| 1829 | msg, msglen, NULL); |
| 1830 | if (aq_ret) { |
| 1831 | dev_info(&pf->pdev->dev, |
| 1832 | "Unable to send the message to VF %d aq_err %d\n", |
| 1833 | vf->vf_id, pf->hw.aq.asq_last_status); |
| 1834 | return -EIO; |
| 1835 | } |
| 1836 | |
| 1837 | return 0; |
| 1838 | } |
| 1839 | |
| 1840 | /** |
| 1841 | * i40e_vc_send_resp_to_vf |
| 1842 | * @vf: pointer to the VF info |
| 1843 | * @opcode: operation code |
| 1844 | * @retval: return value |
| 1845 | * |
| 1846 | * send resp msg to VF |
| 1847 | **/ |
| 1848 | static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf, |
| 1849 | enum virtchnl_ops opcode, |
| 1850 | i40e_status retval) |
| 1851 | { |
| 1852 | return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0); |
| 1853 | } |
| 1854 | |
| 1855 | /** |
| 1856 | * i40e_vc_get_version_msg |
| 1857 | * @vf: pointer to the VF info |
| 1858 | * @msg: pointer to the msg buffer |
| 1859 | * |
| 1860 | * called from the VF to request the API version used by the PF |
| 1861 | **/ |
| 1862 | static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg) |
| 1863 | { |
| 1864 | struct virtchnl_version_info info = { |
| 1865 | VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR |
| 1866 | }; |
| 1867 | |
| 1868 | vf->vf_ver = *(struct virtchnl_version_info *)msg; |
| 1869 | /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */ |
| 1870 | if (VF_IS_V10(&vf->vf_ver)) |
| 1871 | info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS; |
| 1872 | return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION, |
| 1873 | I40E_SUCCESS, (u8 *)&info, |
| 1874 | sizeof(struct virtchnl_version_info)); |
| 1875 | } |
| 1876 | |
| 1877 | /** |
| 1878 | * i40e_del_qch - delete all the additional VSIs created as a part of ADq |
| 1879 | * @vf: pointer to VF structure |
| 1880 | **/ |
| 1881 | static void i40e_del_qch(struct i40e_vf *vf) |
| 1882 | { |
| 1883 | struct i40e_pf *pf = vf->pf; |
| 1884 | int i; |
| 1885 | |
| 1886 | /* first element in the array belongs to primary VF VSI and we shouldn't |
| 1887 | * delete it. We should however delete the rest of the VSIs created |
| 1888 | */ |
| 1889 | for (i = 1; i < vf->num_tc; i++) { |
| 1890 | if (vf->ch[i].vsi_idx) { |
| 1891 | i40e_vsi_release(pf->vsi[vf->ch[i].vsi_idx]); |
| 1892 | vf->ch[i].vsi_idx = 0; |
| 1893 | vf->ch[i].vsi_id = 0; |
| 1894 | } |
| 1895 | } |
| 1896 | } |
| 1897 | |
| 1898 | /** |
| 1899 | * i40e_vc_get_vf_resources_msg |
| 1900 | * @vf: pointer to the VF info |
| 1901 | * @msg: pointer to the msg buffer |
| 1902 | * |
| 1903 | * called from the VF to request its resources |
| 1904 | **/ |
| 1905 | static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg) |
| 1906 | { |
| 1907 | struct virtchnl_vf_resource *vfres = NULL; |
| 1908 | struct i40e_pf *pf = vf->pf; |
| 1909 | i40e_status aq_ret = 0; |
| 1910 | struct i40e_vsi *vsi; |
| 1911 | int num_vsis = 1; |
| 1912 | size_t len = 0; |
| 1913 | int ret; |
| 1914 | |
| 1915 | if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { |
| 1916 | aq_ret = I40E_ERR_PARAM; |
| 1917 | goto err; |
| 1918 | } |
| 1919 | |
| 1920 | len = struct_size(vfres, vsi_res, num_vsis); |
| 1921 | vfres = kzalloc(len, GFP_KERNEL); |
| 1922 | if (!vfres) { |
| 1923 | aq_ret = I40E_ERR_NO_MEMORY; |
| 1924 | len = 0; |
| 1925 | goto err; |
| 1926 | } |
| 1927 | if (VF_IS_V11(&vf->vf_ver)) |
| 1928 | vf->driver_caps = *(u32 *)msg; |
| 1929 | else |
| 1930 | vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 | |
| 1931 | VIRTCHNL_VF_OFFLOAD_RSS_REG | |
| 1932 | VIRTCHNL_VF_OFFLOAD_VLAN; |
| 1933 | |
| 1934 | vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2; |
| 1935 | vsi = pf->vsi[vf->lan_vsi_idx]; |
| 1936 | if (!vsi->info.pvid) |
| 1937 | vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN; |
| 1938 | |
| 1939 | if (i40e_vf_client_capable(pf, vf->vf_id) && |
| 1940 | (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_IWARP)) { |
| 1941 | vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_IWARP; |
| 1942 | set_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states); |
| 1943 | } else { |
| 1944 | clear_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states); |
| 1945 | } |
| 1946 | |
| 1947 | if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) { |
| 1948 | vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF; |
| 1949 | } else { |
| 1950 | if ((pf->hw_features & I40E_HW_RSS_AQ_CAPABLE) && |
| 1951 | (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ)) |
| 1952 | vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ; |
| 1953 | else |
| 1954 | vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG; |
| 1955 | } |
| 1956 | |
| 1957 | if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) { |
| 1958 | if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2) |
| 1959 | vfres->vf_cap_flags |= |
| 1960 | VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2; |
| 1961 | } |
| 1962 | |
| 1963 | if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP) |
| 1964 | vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP; |
| 1965 | |
| 1966 | if ((pf->hw_features & I40E_HW_OUTER_UDP_CSUM_CAPABLE) && |
| 1967 | (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM)) |
| 1968 | vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM; |
| 1969 | |
| 1970 | if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) { |
| 1971 | if (pf->flags & I40E_FLAG_MFP_ENABLED) { |
| 1972 | dev_err(&pf->pdev->dev, |
| 1973 | "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n", |
| 1974 | vf->vf_id); |
| 1975 | aq_ret = I40E_ERR_PARAM; |
| 1976 | goto err; |
| 1977 | } |
| 1978 | vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING; |
| 1979 | } |
| 1980 | |
| 1981 | if (pf->hw_features & I40E_HW_WB_ON_ITR_CAPABLE) { |
| 1982 | if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) |
| 1983 | vfres->vf_cap_flags |= |
| 1984 | VIRTCHNL_VF_OFFLOAD_WB_ON_ITR; |
| 1985 | } |
| 1986 | |
| 1987 | if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES) |
| 1988 | vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES; |
| 1989 | |
| 1990 | if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ) |
| 1991 | vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADQ; |
| 1992 | |
| 1993 | vfres->num_vsis = num_vsis; |
| 1994 | vfres->num_queue_pairs = vf->num_queue_pairs; |
| 1995 | vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf; |
| 1996 | vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE; |
| 1997 | vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE; |
| 1998 | |
| 1999 | if (vf->lan_vsi_idx) { |
| 2000 | vfres->vsi_res[0].vsi_id = vf->lan_vsi_id; |
| 2001 | vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV; |
| 2002 | vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs; |
| 2003 | /* VFs only use TC 0 */ |
| 2004 | vfres->vsi_res[0].qset_handle |
| 2005 | = le16_to_cpu(vsi->info.qs_handle[0]); |
| 2006 | ether_addr_copy(vfres->vsi_res[0].default_mac_addr, |
| 2007 | vf->default_lan_addr.addr); |
| 2008 | } |
| 2009 | set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states); |
| 2010 | |
| 2011 | err: |
| 2012 | /* send the response back to the VF */ |
| 2013 | ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES, |
| 2014 | aq_ret, (u8 *)vfres, len); |
| 2015 | |
| 2016 | kfree(vfres); |
| 2017 | return ret; |
| 2018 | } |
| 2019 | |
| 2020 | /** |
| 2021 | * i40e_vc_reset_vf_msg |
| 2022 | * @vf: pointer to the VF info |
| 2023 | * |
| 2024 | * called from the VF to reset itself, |
| 2025 | * unlike other virtchnl messages, PF driver |
| 2026 | * doesn't send the response back to the VF |
| 2027 | **/ |
| 2028 | static void i40e_vc_reset_vf_msg(struct i40e_vf *vf) |
| 2029 | { |
| 2030 | if (test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) |
| 2031 | i40e_reset_vf(vf, false); |
| 2032 | } |
| 2033 | |
| 2034 | /** |
| 2035 | * i40e_vc_config_promiscuous_mode_msg |
| 2036 | * @vf: pointer to the VF info |
| 2037 | * @msg: pointer to the msg buffer |
| 2038 | * |
| 2039 | * called from the VF to configure the promiscuous mode of |
| 2040 | * VF vsis |
| 2041 | **/ |
| 2042 | static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, u8 *msg) |
| 2043 | { |
| 2044 | struct virtchnl_promisc_info *info = |
| 2045 | (struct virtchnl_promisc_info *)msg; |
| 2046 | struct i40e_pf *pf = vf->pf; |
| 2047 | i40e_status aq_ret = 0; |
| 2048 | bool allmulti = false; |
| 2049 | bool alluni = false; |
| 2050 | |
| 2051 | if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { |
| 2052 | aq_ret = I40E_ERR_PARAM; |
| 2053 | goto err_out; |
| 2054 | } |
| 2055 | if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { |
| 2056 | dev_err(&pf->pdev->dev, |
| 2057 | "Unprivileged VF %d is attempting to configure promiscuous mode\n", |
| 2058 | vf->vf_id); |
| 2059 | |
| 2060 | /* Lie to the VF on purpose, because this is an error we can |
| 2061 | * ignore. Unprivileged VF is not a virtual channel error. |
| 2062 | */ |
| 2063 | aq_ret = 0; |
| 2064 | goto err_out; |
| 2065 | } |
| 2066 | |
| 2067 | if (info->flags > I40E_MAX_VF_PROMISC_FLAGS) { |
| 2068 | aq_ret = I40E_ERR_PARAM; |
| 2069 | goto err_out; |
| 2070 | } |
| 2071 | |
| 2072 | if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) { |
| 2073 | aq_ret = I40E_ERR_PARAM; |
| 2074 | goto err_out; |
| 2075 | } |
| 2076 | |
| 2077 | /* Multicast promiscuous handling*/ |
| 2078 | if (info->flags & FLAG_VF_MULTICAST_PROMISC) |
| 2079 | allmulti = true; |
| 2080 | |
| 2081 | if (info->flags & FLAG_VF_UNICAST_PROMISC) |
| 2082 | alluni = true; |
| 2083 | aq_ret = i40e_config_vf_promiscuous_mode(vf, info->vsi_id, allmulti, |
| 2084 | alluni); |
| 2085 | if (aq_ret) |
| 2086 | goto err_out; |
| 2087 | |
| 2088 | if (allmulti) { |
| 2089 | if (!test_and_set_bit(I40E_VF_STATE_MC_PROMISC, |
| 2090 | &vf->vf_states)) |
| 2091 | dev_info(&pf->pdev->dev, |
| 2092 | "VF %d successfully set multicast promiscuous mode\n", |
| 2093 | vf->vf_id); |
| 2094 | } else if (test_and_clear_bit(I40E_VF_STATE_MC_PROMISC, |
| 2095 | &vf->vf_states)) |
| 2096 | dev_info(&pf->pdev->dev, |
| 2097 | "VF %d successfully unset multicast promiscuous mode\n", |
| 2098 | vf->vf_id); |
| 2099 | |
| 2100 | if (alluni) { |
| 2101 | if (!test_and_set_bit(I40E_VF_STATE_UC_PROMISC, |
| 2102 | &vf->vf_states)) |
| 2103 | dev_info(&pf->pdev->dev, |
| 2104 | "VF %d successfully set unicast promiscuous mode\n", |
| 2105 | vf->vf_id); |
| 2106 | } else if (test_and_clear_bit(I40E_VF_STATE_UC_PROMISC, |
| 2107 | &vf->vf_states)) |
| 2108 | dev_info(&pf->pdev->dev, |
| 2109 | "VF %d successfully unset unicast promiscuous mode\n", |
| 2110 | vf->vf_id); |
| 2111 | |
| 2112 | err_out: |
| 2113 | /* send the response to the VF */ |
| 2114 | return i40e_vc_send_resp_to_vf(vf, |
| 2115 | VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, |
| 2116 | aq_ret); |
| 2117 | } |
| 2118 | |
| 2119 | /** |
| 2120 | * i40e_vc_config_queues_msg |
| 2121 | * @vf: pointer to the VF info |
| 2122 | * @msg: pointer to the msg buffer |
| 2123 | * |
| 2124 | * called from the VF to configure the rx/tx |
| 2125 | * queues |
| 2126 | **/ |
| 2127 | static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg) |
| 2128 | { |
| 2129 | struct virtchnl_vsi_queue_config_info *qci = |
| 2130 | (struct virtchnl_vsi_queue_config_info *)msg; |
| 2131 | struct virtchnl_queue_pair_info *qpi; |
| 2132 | struct i40e_pf *pf = vf->pf; |
| 2133 | u16 vsi_id, vsi_queue_id = 0; |
| 2134 | u16 num_qps_all = 0; |
| 2135 | i40e_status aq_ret = 0; |
| 2136 | int i, j = 0, idx = 0; |
| 2137 | |
| 2138 | if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { |
| 2139 | aq_ret = I40E_ERR_PARAM; |
| 2140 | goto error_param; |
| 2141 | } |
| 2142 | |
| 2143 | if (!i40e_vc_isvalid_vsi_id(vf, qci->vsi_id)) { |
| 2144 | aq_ret = I40E_ERR_PARAM; |
| 2145 | goto error_param; |
| 2146 | } |
| 2147 | |
| 2148 | if (qci->num_queue_pairs > I40E_MAX_VF_QUEUES) { |
| 2149 | aq_ret = I40E_ERR_PARAM; |
| 2150 | goto error_param; |
| 2151 | } |
| 2152 | |
| 2153 | if (vf->adq_enabled) { |
| 2154 | for (i = 0; i < I40E_MAX_VF_VSI; i++) |
| 2155 | num_qps_all += vf->ch[i].num_qps; |
| 2156 | if (num_qps_all != qci->num_queue_pairs) { |
| 2157 | aq_ret = I40E_ERR_PARAM; |
| 2158 | goto error_param; |
| 2159 | } |
| 2160 | } |
| 2161 | |
| 2162 | vsi_id = qci->vsi_id; |
| 2163 | |
| 2164 | for (i = 0; i < qci->num_queue_pairs; i++) { |
| 2165 | qpi = &qci->qpair[i]; |
| 2166 | |
| 2167 | if (!vf->adq_enabled) { |
| 2168 | if (!i40e_vc_isvalid_queue_id(vf, vsi_id, |
| 2169 | qpi->txq.queue_id)) { |
| 2170 | aq_ret = I40E_ERR_PARAM; |
| 2171 | goto error_param; |
| 2172 | } |
| 2173 | |
| 2174 | vsi_queue_id = qpi->txq.queue_id; |
| 2175 | |
| 2176 | if (qpi->txq.vsi_id != qci->vsi_id || |
| 2177 | qpi->rxq.vsi_id != qci->vsi_id || |
| 2178 | qpi->rxq.queue_id != vsi_queue_id) { |
| 2179 | aq_ret = I40E_ERR_PARAM; |
| 2180 | goto error_param; |
| 2181 | } |
| 2182 | } |
| 2183 | |
| 2184 | if (vf->adq_enabled) { |
| 2185 | if (idx >= ARRAY_SIZE(vf->ch)) { |
| 2186 | aq_ret = I40E_ERR_NO_AVAILABLE_VSI; |
| 2187 | goto error_param; |
| 2188 | } |
| 2189 | vsi_id = vf->ch[idx].vsi_id; |
| 2190 | } |
| 2191 | |
| 2192 | if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id, |
| 2193 | &qpi->rxq) || |
| 2194 | i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id, |
| 2195 | &qpi->txq)) { |
| 2196 | aq_ret = I40E_ERR_PARAM; |
| 2197 | goto error_param; |
| 2198 | } |
| 2199 | |
| 2200 | /* For ADq there can be up to 4 VSIs with max 4 queues each. |
| 2201 | * VF does not know about these additional VSIs and all |
| 2202 | * it cares is about its own queues. PF configures these queues |
| 2203 | * to its appropriate VSIs based on TC mapping |
| 2204 | */ |
| 2205 | if (vf->adq_enabled) { |
| 2206 | if (idx >= ARRAY_SIZE(vf->ch)) { |
| 2207 | aq_ret = I40E_ERR_NO_AVAILABLE_VSI; |
| 2208 | goto error_param; |
| 2209 | } |
| 2210 | if (j == (vf->ch[idx].num_qps - 1)) { |
| 2211 | idx++; |
| 2212 | j = 0; /* resetting the queue count */ |
| 2213 | vsi_queue_id = 0; |
| 2214 | } else { |
| 2215 | j++; |
| 2216 | vsi_queue_id++; |
| 2217 | } |
| 2218 | } |
| 2219 | } |
| 2220 | /* set vsi num_queue_pairs in use to num configured by VF */ |
| 2221 | if (!vf->adq_enabled) { |
| 2222 | pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = |
| 2223 | qci->num_queue_pairs; |
| 2224 | } else { |
| 2225 | for (i = 0; i < vf->num_tc; i++) |
| 2226 | pf->vsi[vf->ch[i].vsi_idx]->num_queue_pairs = |
| 2227 | vf->ch[i].num_qps; |
| 2228 | } |
| 2229 | |
| 2230 | error_param: |
| 2231 | /* send the response to the VF */ |
| 2232 | return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES, |
| 2233 | aq_ret); |
| 2234 | } |
| 2235 | |
| 2236 | /** |
| 2237 | * i40e_validate_queue_map |
| 2238 | * @vsi_id: vsi id |
| 2239 | * @queuemap: Tx or Rx queue map |
| 2240 | * |
| 2241 | * check if Tx or Rx queue map is valid |
| 2242 | **/ |
| 2243 | static int i40e_validate_queue_map(struct i40e_vf *vf, u16 vsi_id, |
| 2244 | unsigned long queuemap) |
| 2245 | { |
| 2246 | u16 vsi_queue_id, queue_id; |
| 2247 | |
| 2248 | for_each_set_bit(vsi_queue_id, &queuemap, I40E_MAX_VSI_QP) { |
| 2249 | if (vf->adq_enabled) { |
| 2250 | vsi_id = vf->ch[vsi_queue_id / I40E_MAX_VF_VSI].vsi_id; |
| 2251 | queue_id = (vsi_queue_id % I40E_DEFAULT_QUEUES_PER_VF); |
| 2252 | } else { |
| 2253 | queue_id = vsi_queue_id; |
| 2254 | } |
| 2255 | |
| 2256 | if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id)) |
| 2257 | return -EINVAL; |
| 2258 | } |
| 2259 | |
| 2260 | return 0; |
| 2261 | } |
| 2262 | |
| 2263 | /** |
| 2264 | * i40e_vc_config_irq_map_msg |
| 2265 | * @vf: pointer to the VF info |
| 2266 | * @msg: pointer to the msg buffer |
| 2267 | * |
| 2268 | * called from the VF to configure the irq to |
| 2269 | * queue map |
| 2270 | **/ |
| 2271 | static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg) |
| 2272 | { |
| 2273 | struct virtchnl_irq_map_info *irqmap_info = |
| 2274 | (struct virtchnl_irq_map_info *)msg; |
| 2275 | struct virtchnl_vector_map *map; |
| 2276 | u16 vsi_id; |
| 2277 | i40e_status aq_ret = 0; |
| 2278 | int i; |
| 2279 | |
| 2280 | if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { |
| 2281 | aq_ret = I40E_ERR_PARAM; |
| 2282 | goto error_param; |
| 2283 | } |
| 2284 | |
| 2285 | if (irqmap_info->num_vectors > |
| 2286 | vf->pf->hw.func_caps.num_msix_vectors_vf) { |
| 2287 | aq_ret = I40E_ERR_PARAM; |
| 2288 | goto error_param; |
| 2289 | } |
| 2290 | |
| 2291 | for (i = 0; i < irqmap_info->num_vectors; i++) { |
| 2292 | map = &irqmap_info->vecmap[i]; |
| 2293 | /* validate msg params */ |
| 2294 | if (!i40e_vc_isvalid_vector_id(vf, map->vector_id) || |
| 2295 | !i40e_vc_isvalid_vsi_id(vf, map->vsi_id)) { |
| 2296 | aq_ret = I40E_ERR_PARAM; |
| 2297 | goto error_param; |
| 2298 | } |
| 2299 | vsi_id = map->vsi_id; |
| 2300 | |
| 2301 | if (i40e_validate_queue_map(vf, vsi_id, map->rxq_map)) { |
| 2302 | aq_ret = I40E_ERR_PARAM; |
| 2303 | goto error_param; |
| 2304 | } |
| 2305 | |
| 2306 | if (i40e_validate_queue_map(vf, vsi_id, map->txq_map)) { |
| 2307 | aq_ret = I40E_ERR_PARAM; |
| 2308 | goto error_param; |
| 2309 | } |
| 2310 | |
| 2311 | i40e_config_irq_link_list(vf, vsi_id, map); |
| 2312 | } |
| 2313 | error_param: |
| 2314 | /* send the response to the VF */ |
| 2315 | return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP, |
| 2316 | aq_ret); |
| 2317 | } |
| 2318 | |
| 2319 | /** |
| 2320 | * i40e_ctrl_vf_tx_rings |
| 2321 | * @vsi: the SRIOV VSI being configured |
| 2322 | * @q_map: bit map of the queues to be enabled |
| 2323 | * @enable: start or stop the queue |
| 2324 | **/ |
| 2325 | static int i40e_ctrl_vf_tx_rings(struct i40e_vsi *vsi, unsigned long q_map, |
| 2326 | bool enable) |
| 2327 | { |
| 2328 | struct i40e_pf *pf = vsi->back; |
| 2329 | int ret = 0; |
| 2330 | u16 q_id; |
| 2331 | |
| 2332 | for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) { |
| 2333 | ret = i40e_control_wait_tx_q(vsi->seid, pf, |
| 2334 | vsi->base_queue + q_id, |
| 2335 | false /*is xdp*/, enable); |
| 2336 | if (ret) |
| 2337 | break; |
| 2338 | } |
| 2339 | return ret; |
| 2340 | } |
| 2341 | |
| 2342 | /** |
| 2343 | * i40e_ctrl_vf_rx_rings |
| 2344 | * @vsi: the SRIOV VSI being configured |
| 2345 | * @q_map: bit map of the queues to be enabled |
| 2346 | * @enable: start or stop the queue |
| 2347 | **/ |
| 2348 | static int i40e_ctrl_vf_rx_rings(struct i40e_vsi *vsi, unsigned long q_map, |
| 2349 | bool enable) |
| 2350 | { |
| 2351 | struct i40e_pf *pf = vsi->back; |
| 2352 | int ret = 0; |
| 2353 | u16 q_id; |
| 2354 | |
| 2355 | for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) { |
| 2356 | ret = i40e_control_wait_rx_q(pf, vsi->base_queue + q_id, |
| 2357 | enable); |
| 2358 | if (ret) |
| 2359 | break; |
| 2360 | } |
| 2361 | return ret; |
| 2362 | } |
| 2363 | |
| 2364 | /** |
| 2365 | * i40e_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTHCHNL |
| 2366 | * @vqs: virtchnl_queue_select structure containing bitmaps to validate |
| 2367 | * |
| 2368 | * Returns true if validation was successful, else false. |
| 2369 | */ |
| 2370 | static bool i40e_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs) |
| 2371 | { |
| 2372 | if ((!vqs->rx_queues && !vqs->tx_queues) || |
| 2373 | vqs->rx_queues >= BIT(I40E_MAX_VF_QUEUES) || |
| 2374 | vqs->tx_queues >= BIT(I40E_MAX_VF_QUEUES)) |
| 2375 | return false; |
| 2376 | |
| 2377 | return true; |
| 2378 | } |
| 2379 | |
| 2380 | /** |
| 2381 | * i40e_vc_enable_queues_msg |
| 2382 | * @vf: pointer to the VF info |
| 2383 | * @msg: pointer to the msg buffer |
| 2384 | * |
| 2385 | * called from the VF to enable all or specific queue(s) |
| 2386 | **/ |
| 2387 | static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg) |
| 2388 | { |
| 2389 | struct virtchnl_queue_select *vqs = |
| 2390 | (struct virtchnl_queue_select *)msg; |
| 2391 | struct i40e_pf *pf = vf->pf; |
| 2392 | i40e_status aq_ret = 0; |
| 2393 | int i; |
| 2394 | |
| 2395 | if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { |
| 2396 | aq_ret = I40E_ERR_PARAM; |
| 2397 | goto error_param; |
| 2398 | } |
| 2399 | |
| 2400 | if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { |
| 2401 | aq_ret = I40E_ERR_PARAM; |
| 2402 | goto error_param; |
| 2403 | } |
| 2404 | |
| 2405 | if (!i40e_vc_validate_vqs_bitmaps(vqs)) { |
| 2406 | aq_ret = I40E_ERR_PARAM; |
| 2407 | goto error_param; |
| 2408 | } |
| 2409 | |
| 2410 | /* Use the queue bit map sent by the VF */ |
| 2411 | if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues, |
| 2412 | true)) { |
| 2413 | aq_ret = I40E_ERR_TIMEOUT; |
| 2414 | goto error_param; |
| 2415 | } |
| 2416 | if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues, |
| 2417 | true)) { |
| 2418 | aq_ret = I40E_ERR_TIMEOUT; |
| 2419 | goto error_param; |
| 2420 | } |
| 2421 | |
| 2422 | /* need to start the rings for additional ADq VSI's as well */ |
| 2423 | if (vf->adq_enabled) { |
| 2424 | /* zero belongs to LAN VSI */ |
| 2425 | for (i = 1; i < vf->num_tc; i++) { |
| 2426 | if (i40e_vsi_start_rings(pf->vsi[vf->ch[i].vsi_idx])) |
| 2427 | aq_ret = I40E_ERR_TIMEOUT; |
| 2428 | } |
| 2429 | } |
| 2430 | |
| 2431 | vf->queues_enabled = true; |
| 2432 | |
| 2433 | error_param: |
| 2434 | /* send the response to the VF */ |
| 2435 | return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES, |
| 2436 | aq_ret); |
| 2437 | } |
| 2438 | |
| 2439 | /** |
| 2440 | * i40e_vc_disable_queues_msg |
| 2441 | * @vf: pointer to the VF info |
| 2442 | * @msg: pointer to the msg buffer |
| 2443 | * |
| 2444 | * called from the VF to disable all or specific |
| 2445 | * queue(s) |
| 2446 | **/ |
| 2447 | static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg) |
| 2448 | { |
| 2449 | struct virtchnl_queue_select *vqs = |
| 2450 | (struct virtchnl_queue_select *)msg; |
| 2451 | struct i40e_pf *pf = vf->pf; |
| 2452 | i40e_status aq_ret = 0; |
| 2453 | |
| 2454 | /* Immediately mark queues as disabled */ |
| 2455 | vf->queues_enabled = false; |
| 2456 | |
| 2457 | if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { |
| 2458 | aq_ret = I40E_ERR_PARAM; |
| 2459 | goto error_param; |
| 2460 | } |
| 2461 | |
| 2462 | if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { |
| 2463 | aq_ret = I40E_ERR_PARAM; |
| 2464 | goto error_param; |
| 2465 | } |
| 2466 | |
| 2467 | if (!i40e_vc_validate_vqs_bitmaps(vqs)) { |
| 2468 | aq_ret = I40E_ERR_PARAM; |
| 2469 | goto error_param; |
| 2470 | } |
| 2471 | |
| 2472 | /* Use the queue bit map sent by the VF */ |
| 2473 | if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues, |
| 2474 | false)) { |
| 2475 | aq_ret = I40E_ERR_TIMEOUT; |
| 2476 | goto error_param; |
| 2477 | } |
| 2478 | if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues, |
| 2479 | false)) { |
| 2480 | aq_ret = I40E_ERR_TIMEOUT; |
| 2481 | goto error_param; |
| 2482 | } |
| 2483 | error_param: |
| 2484 | /* send the response to the VF */ |
| 2485 | return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES, |
| 2486 | aq_ret); |
| 2487 | } |
| 2488 | |
| 2489 | /** |
| 2490 | * i40e_vc_request_queues_msg |
| 2491 | * @vf: pointer to the VF info |
| 2492 | * @msg: pointer to the msg buffer |
| 2493 | * |
| 2494 | * VFs get a default number of queues but can use this message to request a |
| 2495 | * different number. If the request is successful, PF will reset the VF and |
| 2496 | * return 0. If unsuccessful, PF will send message informing VF of number of |
| 2497 | * available queues and return result of sending VF a message. |
| 2498 | **/ |
| 2499 | static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg) |
| 2500 | { |
| 2501 | struct virtchnl_vf_res_request *vfres = |
| 2502 | (struct virtchnl_vf_res_request *)msg; |
| 2503 | u16 req_pairs = vfres->num_queue_pairs; |
| 2504 | u8 cur_pairs = vf->num_queue_pairs; |
| 2505 | struct i40e_pf *pf = vf->pf; |
| 2506 | |
| 2507 | if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) |
| 2508 | return -EINVAL; |
| 2509 | |
| 2510 | if (req_pairs > I40E_MAX_VF_QUEUES) { |
| 2511 | dev_err(&pf->pdev->dev, |
| 2512 | "VF %d tried to request more than %d queues.\n", |
| 2513 | vf->vf_id, |
| 2514 | I40E_MAX_VF_QUEUES); |
| 2515 | vfres->num_queue_pairs = I40E_MAX_VF_QUEUES; |
| 2516 | } else if (req_pairs - cur_pairs > pf->queues_left) { |
| 2517 | dev_warn(&pf->pdev->dev, |
| 2518 | "VF %d requested %d more queues, but only %d left.\n", |
| 2519 | vf->vf_id, |
| 2520 | req_pairs - cur_pairs, |
| 2521 | pf->queues_left); |
| 2522 | vfres->num_queue_pairs = pf->queues_left + cur_pairs; |
| 2523 | } else { |
| 2524 | /* successful request */ |
| 2525 | vf->num_req_queues = req_pairs; |
| 2526 | i40e_vc_notify_vf_reset(vf); |
| 2527 | i40e_reset_vf(vf, false); |
| 2528 | return 0; |
| 2529 | } |
| 2530 | |
| 2531 | return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES, 0, |
| 2532 | (u8 *)vfres, sizeof(*vfres)); |
| 2533 | } |
| 2534 | |
| 2535 | /** |
| 2536 | * i40e_vc_get_stats_msg |
| 2537 | * @vf: pointer to the VF info |
| 2538 | * @msg: pointer to the msg buffer |
| 2539 | * |
| 2540 | * called from the VF to get vsi stats |
| 2541 | **/ |
| 2542 | static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg) |
| 2543 | { |
| 2544 | struct virtchnl_queue_select *vqs = |
| 2545 | (struct virtchnl_queue_select *)msg; |
| 2546 | struct i40e_pf *pf = vf->pf; |
| 2547 | struct i40e_eth_stats stats; |
| 2548 | i40e_status aq_ret = 0; |
| 2549 | struct i40e_vsi *vsi; |
| 2550 | |
| 2551 | memset(&stats, 0, sizeof(struct i40e_eth_stats)); |
| 2552 | |
| 2553 | if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { |
| 2554 | aq_ret = I40E_ERR_PARAM; |
| 2555 | goto error_param; |
| 2556 | } |
| 2557 | |
| 2558 | if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { |
| 2559 | aq_ret = I40E_ERR_PARAM; |
| 2560 | goto error_param; |
| 2561 | } |
| 2562 | |
| 2563 | vsi = pf->vsi[vf->lan_vsi_idx]; |
| 2564 | if (!vsi) { |
| 2565 | aq_ret = I40E_ERR_PARAM; |
| 2566 | goto error_param; |
| 2567 | } |
| 2568 | i40e_update_eth_stats(vsi); |
| 2569 | stats = vsi->eth_stats; |
| 2570 | |
| 2571 | error_param: |
| 2572 | /* send the response back to the VF */ |
| 2573 | return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, aq_ret, |
| 2574 | (u8 *)&stats, sizeof(stats)); |
| 2575 | } |
| 2576 | |
| 2577 | /* If the VF is not trusted restrict the number of MAC/VLAN it can program |
| 2578 | * MAC filters: 16 for multicast, 1 for MAC, 1 for broadcast |
| 2579 | */ |
| 2580 | #define I40E_VC_MAX_MAC_ADDR_PER_VF (16 + 1 + 1) |
| 2581 | #define I40E_VC_MAX_VLAN_PER_VF 16 |
| 2582 | |
| 2583 | /** |
| 2584 | * i40e_check_vf_permission |
| 2585 | * @vf: pointer to the VF info |
| 2586 | * @al: MAC address list from virtchnl |
| 2587 | * |
| 2588 | * Check that the given list of MAC addresses is allowed. Will return -EPERM |
| 2589 | * if any address in the list is not valid. Checks the following conditions: |
| 2590 | * |
| 2591 | * 1) broadcast and zero addresses are never valid |
| 2592 | * 2) unicast addresses are not allowed if the VMM has administratively set |
| 2593 | * the VF MAC address, unless the VF is marked as privileged. |
| 2594 | * 3) There is enough space to add all the addresses. |
| 2595 | * |
| 2596 | * Note that to guarantee consistency, it is expected this function be called |
| 2597 | * while holding the mac_filter_hash_lock, as otherwise the current number of |
| 2598 | * addresses might not be accurate. |
| 2599 | **/ |
| 2600 | static inline int i40e_check_vf_permission(struct i40e_vf *vf, |
| 2601 | struct virtchnl_ether_addr_list *al) |
| 2602 | { |
| 2603 | struct i40e_pf *pf = vf->pf; |
| 2604 | struct i40e_vsi *vsi = pf->vsi[vf->lan_vsi_idx]; |
| 2605 | int mac2add_cnt = 0; |
| 2606 | int i; |
| 2607 | |
| 2608 | for (i = 0; i < al->num_elements; i++) { |
| 2609 | struct i40e_mac_filter *f; |
| 2610 | u8 *addr = al->list[i].addr; |
| 2611 | |
| 2612 | if (is_broadcast_ether_addr(addr) || |
| 2613 | is_zero_ether_addr(addr)) { |
| 2614 | dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", |
| 2615 | addr); |
| 2616 | return I40E_ERR_INVALID_MAC_ADDR; |
| 2617 | } |
| 2618 | |
| 2619 | /* If the host VMM administrator has set the VF MAC address |
| 2620 | * administratively via the ndo_set_vf_mac command then deny |
| 2621 | * permission to the VF to add or delete unicast MAC addresses. |
| 2622 | * Unless the VF is privileged and then it can do whatever. |
| 2623 | * The VF may request to set the MAC address filter already |
| 2624 | * assigned to it so do not return an error in that case. |
| 2625 | */ |
| 2626 | if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) && |
| 2627 | !is_multicast_ether_addr(addr) && vf->pf_set_mac && |
| 2628 | !ether_addr_equal(addr, vf->default_lan_addr.addr)) { |
| 2629 | dev_err(&pf->pdev->dev, |
| 2630 | "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n"); |
| 2631 | return -EPERM; |
| 2632 | } |
| 2633 | |
| 2634 | /*count filters that really will be added*/ |
| 2635 | f = i40e_find_mac(vsi, addr); |
| 2636 | if (!f) |
| 2637 | ++mac2add_cnt; |
| 2638 | } |
| 2639 | |
| 2640 | /* If this VF is not privileged, then we can't add more than a limited |
| 2641 | * number of addresses. Check to make sure that the additions do not |
| 2642 | * push us over the limit. |
| 2643 | */ |
| 2644 | if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) && |
| 2645 | (i40e_count_filters(vsi) + mac2add_cnt) > |
| 2646 | I40E_VC_MAX_MAC_ADDR_PER_VF) { |
| 2647 | dev_err(&pf->pdev->dev, |
| 2648 | "Cannot add more MAC addresses, VF is not trusted, switch the VF to trusted to add more functionality\n"); |
| 2649 | return -EPERM; |
| 2650 | } |
| 2651 | return 0; |
| 2652 | } |
| 2653 | |
| 2654 | /** |
| 2655 | * i40e_vc_add_mac_addr_msg |
| 2656 | * @vf: pointer to the VF info |
| 2657 | * @msg: pointer to the msg buffer |
| 2658 | * |
| 2659 | * add guest mac address filter |
| 2660 | **/ |
| 2661 | static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg) |
| 2662 | { |
| 2663 | struct virtchnl_ether_addr_list *al = |
| 2664 | (struct virtchnl_ether_addr_list *)msg; |
| 2665 | struct i40e_pf *pf = vf->pf; |
| 2666 | struct i40e_vsi *vsi = NULL; |
| 2667 | i40e_status ret = 0; |
| 2668 | int i; |
| 2669 | |
| 2670 | if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || |
| 2671 | !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { |
| 2672 | ret = I40E_ERR_PARAM; |
| 2673 | goto error_param; |
| 2674 | } |
| 2675 | |
| 2676 | vsi = pf->vsi[vf->lan_vsi_idx]; |
| 2677 | |
| 2678 | /* Lock once, because all function inside for loop accesses VSI's |
| 2679 | * MAC filter list which needs to be protected using same lock. |
| 2680 | */ |
| 2681 | spin_lock_bh(&vsi->mac_filter_hash_lock); |
| 2682 | |
| 2683 | ret = i40e_check_vf_permission(vf, al); |
| 2684 | if (ret) { |
| 2685 | spin_unlock_bh(&vsi->mac_filter_hash_lock); |
| 2686 | goto error_param; |
| 2687 | } |
| 2688 | |
| 2689 | /* add new addresses to the list */ |
| 2690 | for (i = 0; i < al->num_elements; i++) { |
| 2691 | struct i40e_mac_filter *f; |
| 2692 | |
| 2693 | f = i40e_find_mac(vsi, al->list[i].addr); |
| 2694 | if (!f) { |
| 2695 | f = i40e_add_mac_filter(vsi, al->list[i].addr); |
| 2696 | |
| 2697 | if (!f) { |
| 2698 | dev_err(&pf->pdev->dev, |
| 2699 | "Unable to add MAC filter %pM for VF %d\n", |
| 2700 | al->list[i].addr, vf->vf_id); |
| 2701 | ret = I40E_ERR_PARAM; |
| 2702 | spin_unlock_bh(&vsi->mac_filter_hash_lock); |
| 2703 | goto error_param; |
| 2704 | } |
| 2705 | } |
| 2706 | } |
| 2707 | spin_unlock_bh(&vsi->mac_filter_hash_lock); |
| 2708 | |
| 2709 | /* program the updated filter list */ |
| 2710 | ret = i40e_sync_vsi_filters(vsi); |
| 2711 | if (ret) |
| 2712 | dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", |
| 2713 | vf->vf_id, ret); |
| 2714 | |
| 2715 | error_param: |
| 2716 | /* send the response to the VF */ |
| 2717 | return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR, |
| 2718 | ret); |
| 2719 | } |
| 2720 | |
| 2721 | /** |
| 2722 | * i40e_vc_del_mac_addr_msg |
| 2723 | * @vf: pointer to the VF info |
| 2724 | * @msg: pointer to the msg buffer |
| 2725 | * |
| 2726 | * remove guest mac address filter |
| 2727 | **/ |
| 2728 | static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg) |
| 2729 | { |
| 2730 | struct virtchnl_ether_addr_list *al = |
| 2731 | (struct virtchnl_ether_addr_list *)msg; |
| 2732 | struct i40e_pf *pf = vf->pf; |
| 2733 | struct i40e_vsi *vsi = NULL; |
| 2734 | i40e_status ret = 0; |
| 2735 | int i; |
| 2736 | |
| 2737 | if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || |
| 2738 | !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) { |
| 2739 | ret = I40E_ERR_PARAM; |
| 2740 | goto error_param; |
| 2741 | } |
| 2742 | |
| 2743 | for (i = 0; i < al->num_elements; i++) { |
| 2744 | if (is_broadcast_ether_addr(al->list[i].addr) || |
| 2745 | is_zero_ether_addr(al->list[i].addr)) { |
| 2746 | dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n", |
| 2747 | al->list[i].addr, vf->vf_id); |
| 2748 | ret = I40E_ERR_INVALID_MAC_ADDR; |
| 2749 | goto error_param; |
| 2750 | } |
| 2751 | } |
| 2752 | vsi = pf->vsi[vf->lan_vsi_idx]; |
| 2753 | |
| 2754 | spin_lock_bh(&vsi->mac_filter_hash_lock); |
| 2755 | /* delete addresses from the list */ |
| 2756 | for (i = 0; i < al->num_elements; i++) |
| 2757 | if (i40e_del_mac_filter(vsi, al->list[i].addr)) { |
| 2758 | ret = I40E_ERR_INVALID_MAC_ADDR; |
| 2759 | spin_unlock_bh(&vsi->mac_filter_hash_lock); |
| 2760 | goto error_param; |
| 2761 | } |
| 2762 | |
| 2763 | spin_unlock_bh(&vsi->mac_filter_hash_lock); |
| 2764 | |
| 2765 | /* program the updated filter list */ |
| 2766 | ret = i40e_sync_vsi_filters(vsi); |
| 2767 | if (ret) |
| 2768 | dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n", |
| 2769 | vf->vf_id, ret); |
| 2770 | |
| 2771 | error_param: |
| 2772 | /* send the response to the VF */ |
| 2773 | return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR, |
| 2774 | ret); |
| 2775 | } |
| 2776 | |
| 2777 | /** |
| 2778 | * i40e_vc_add_vlan_msg |
| 2779 | * @vf: pointer to the VF info |
| 2780 | * @msg: pointer to the msg buffer |
| 2781 | * |
| 2782 | * program guest vlan id |
| 2783 | **/ |
| 2784 | static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg) |
| 2785 | { |
| 2786 | struct virtchnl_vlan_filter_list *vfl = |
| 2787 | (struct virtchnl_vlan_filter_list *)msg; |
| 2788 | struct i40e_pf *pf = vf->pf; |
| 2789 | struct i40e_vsi *vsi = NULL; |
| 2790 | i40e_status aq_ret = 0; |
| 2791 | int i; |
| 2792 | |
| 2793 | if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) && |
| 2794 | !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { |
| 2795 | dev_err(&pf->pdev->dev, |
| 2796 | "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n"); |
| 2797 | goto error_param; |
| 2798 | } |
| 2799 | if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || |
| 2800 | !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { |
| 2801 | aq_ret = I40E_ERR_PARAM; |
| 2802 | goto error_param; |
| 2803 | } |
| 2804 | |
| 2805 | for (i = 0; i < vfl->num_elements; i++) { |
| 2806 | if (vfl->vlan_id[i] > I40E_MAX_VLANID) { |
| 2807 | aq_ret = I40E_ERR_PARAM; |
| 2808 | dev_err(&pf->pdev->dev, |
| 2809 | "invalid VF VLAN id %d\n", vfl->vlan_id[i]); |
| 2810 | goto error_param; |
| 2811 | } |
| 2812 | } |
| 2813 | vsi = pf->vsi[vf->lan_vsi_idx]; |
| 2814 | if (vsi->info.pvid) { |
| 2815 | aq_ret = I40E_ERR_PARAM; |
| 2816 | goto error_param; |
| 2817 | } |
| 2818 | |
| 2819 | i40e_vlan_stripping_enable(vsi); |
| 2820 | for (i = 0; i < vfl->num_elements; i++) { |
| 2821 | /* add new VLAN filter */ |
| 2822 | int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]); |
| 2823 | if (!ret) |
| 2824 | vf->num_vlan++; |
| 2825 | |
| 2826 | if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) |
| 2827 | i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, |
| 2828 | true, |
| 2829 | vfl->vlan_id[i], |
| 2830 | NULL); |
| 2831 | if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) |
| 2832 | i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, |
| 2833 | true, |
| 2834 | vfl->vlan_id[i], |
| 2835 | NULL); |
| 2836 | |
| 2837 | if (ret) |
| 2838 | dev_err(&pf->pdev->dev, |
| 2839 | "Unable to add VLAN filter %d for VF %d, error %d\n", |
| 2840 | vfl->vlan_id[i], vf->vf_id, ret); |
| 2841 | } |
| 2842 | |
| 2843 | error_param: |
| 2844 | /* send the response to the VF */ |
| 2845 | return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, aq_ret); |
| 2846 | } |
| 2847 | |
| 2848 | /** |
| 2849 | * i40e_vc_remove_vlan_msg |
| 2850 | * @vf: pointer to the VF info |
| 2851 | * @msg: pointer to the msg buffer |
| 2852 | * |
| 2853 | * remove programmed guest vlan id |
| 2854 | **/ |
| 2855 | static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg) |
| 2856 | { |
| 2857 | struct virtchnl_vlan_filter_list *vfl = |
| 2858 | (struct virtchnl_vlan_filter_list *)msg; |
| 2859 | struct i40e_pf *pf = vf->pf; |
| 2860 | struct i40e_vsi *vsi = NULL; |
| 2861 | i40e_status aq_ret = 0; |
| 2862 | int i; |
| 2863 | |
| 2864 | if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || |
| 2865 | !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { |
| 2866 | aq_ret = I40E_ERR_PARAM; |
| 2867 | goto error_param; |
| 2868 | } |
| 2869 | |
| 2870 | for (i = 0; i < vfl->num_elements; i++) { |
| 2871 | if (vfl->vlan_id[i] > I40E_MAX_VLANID) { |
| 2872 | aq_ret = I40E_ERR_PARAM; |
| 2873 | goto error_param; |
| 2874 | } |
| 2875 | } |
| 2876 | |
| 2877 | vsi = pf->vsi[vf->lan_vsi_idx]; |
| 2878 | if (vsi->info.pvid) { |
| 2879 | if (vfl->num_elements > 1 || vfl->vlan_id[0]) |
| 2880 | aq_ret = I40E_ERR_PARAM; |
| 2881 | goto error_param; |
| 2882 | } |
| 2883 | |
| 2884 | for (i = 0; i < vfl->num_elements; i++) { |
| 2885 | i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]); |
| 2886 | vf->num_vlan--; |
| 2887 | |
| 2888 | if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) |
| 2889 | i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid, |
| 2890 | false, |
| 2891 | vfl->vlan_id[i], |
| 2892 | NULL); |
| 2893 | if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) |
| 2894 | i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid, |
| 2895 | false, |
| 2896 | vfl->vlan_id[i], |
| 2897 | NULL); |
| 2898 | } |
| 2899 | |
| 2900 | error_param: |
| 2901 | /* send the response to the VF */ |
| 2902 | return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, aq_ret); |
| 2903 | } |
| 2904 | |
| 2905 | /** |
| 2906 | * i40e_vc_iwarp_msg |
| 2907 | * @vf: pointer to the VF info |
| 2908 | * @msg: pointer to the msg buffer |
| 2909 | * @msglen: msg length |
| 2910 | * |
| 2911 | * called from the VF for the iwarp msgs |
| 2912 | **/ |
| 2913 | static int i40e_vc_iwarp_msg(struct i40e_vf *vf, u8 *msg, u16 msglen) |
| 2914 | { |
| 2915 | struct i40e_pf *pf = vf->pf; |
| 2916 | int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id; |
| 2917 | i40e_status aq_ret = 0; |
| 2918 | |
| 2919 | if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || |
| 2920 | !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) { |
| 2921 | aq_ret = I40E_ERR_PARAM; |
| 2922 | goto error_param; |
| 2923 | } |
| 2924 | |
| 2925 | i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id, |
| 2926 | msg, msglen); |
| 2927 | |
| 2928 | error_param: |
| 2929 | /* send the response to the VF */ |
| 2930 | return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_IWARP, |
| 2931 | aq_ret); |
| 2932 | } |
| 2933 | |
| 2934 | /** |
| 2935 | * i40e_vc_iwarp_qvmap_msg |
| 2936 | * @vf: pointer to the VF info |
| 2937 | * @msg: pointer to the msg buffer |
| 2938 | * @config: config qvmap or release it |
| 2939 | * |
| 2940 | * called from the VF for the iwarp msgs |
| 2941 | **/ |
| 2942 | static int i40e_vc_iwarp_qvmap_msg(struct i40e_vf *vf, u8 *msg, bool config) |
| 2943 | { |
| 2944 | struct virtchnl_iwarp_qvlist_info *qvlist_info = |
| 2945 | (struct virtchnl_iwarp_qvlist_info *)msg; |
| 2946 | i40e_status aq_ret = 0; |
| 2947 | |
| 2948 | if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || |
| 2949 | !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) { |
| 2950 | aq_ret = I40E_ERR_PARAM; |
| 2951 | goto error_param; |
| 2952 | } |
| 2953 | |
| 2954 | if (config) { |
| 2955 | if (i40e_config_iwarp_qvlist(vf, qvlist_info)) |
| 2956 | aq_ret = I40E_ERR_PARAM; |
| 2957 | } else { |
| 2958 | i40e_release_iwarp_qvlist(vf); |
| 2959 | } |
| 2960 | |
| 2961 | error_param: |
| 2962 | /* send the response to the VF */ |
| 2963 | return i40e_vc_send_resp_to_vf(vf, |
| 2964 | config ? VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP : |
| 2965 | VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP, |
| 2966 | aq_ret); |
| 2967 | } |
| 2968 | |
| 2969 | /** |
| 2970 | * i40e_vc_config_rss_key |
| 2971 | * @vf: pointer to the VF info |
| 2972 | * @msg: pointer to the msg buffer |
| 2973 | * |
| 2974 | * Configure the VF's RSS key |
| 2975 | **/ |
| 2976 | static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg) |
| 2977 | { |
| 2978 | struct virtchnl_rss_key *vrk = |
| 2979 | (struct virtchnl_rss_key *)msg; |
| 2980 | struct i40e_pf *pf = vf->pf; |
| 2981 | struct i40e_vsi *vsi = NULL; |
| 2982 | i40e_status aq_ret = 0; |
| 2983 | |
| 2984 | if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || |
| 2985 | !i40e_vc_isvalid_vsi_id(vf, vrk->vsi_id) || |
| 2986 | (vrk->key_len != I40E_HKEY_ARRAY_SIZE)) { |
| 2987 | aq_ret = I40E_ERR_PARAM; |
| 2988 | goto err; |
| 2989 | } |
| 2990 | |
| 2991 | vsi = pf->vsi[vf->lan_vsi_idx]; |
| 2992 | aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0); |
| 2993 | err: |
| 2994 | /* send the response to the VF */ |
| 2995 | return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY, |
| 2996 | aq_ret); |
| 2997 | } |
| 2998 | |
| 2999 | /** |
| 3000 | * i40e_vc_config_rss_lut |
| 3001 | * @vf: pointer to the VF info |
| 3002 | * @msg: pointer to the msg buffer |
| 3003 | * |
| 3004 | * Configure the VF's RSS LUT |
| 3005 | **/ |
| 3006 | static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg) |
| 3007 | { |
| 3008 | struct virtchnl_rss_lut *vrl = |
| 3009 | (struct virtchnl_rss_lut *)msg; |
| 3010 | struct i40e_pf *pf = vf->pf; |
| 3011 | struct i40e_vsi *vsi = NULL; |
| 3012 | i40e_status aq_ret = 0; |
| 3013 | u16 i; |
| 3014 | |
| 3015 | if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) || |
| 3016 | !i40e_vc_isvalid_vsi_id(vf, vrl->vsi_id) || |
| 3017 | (vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE)) { |
| 3018 | aq_ret = I40E_ERR_PARAM; |
| 3019 | goto err; |
| 3020 | } |
| 3021 | |
| 3022 | for (i = 0; i < vrl->lut_entries; i++) |
| 3023 | if (vrl->lut[i] >= vf->num_queue_pairs) { |
| 3024 | aq_ret = I40E_ERR_PARAM; |
| 3025 | goto err; |
| 3026 | } |
| 3027 | |
| 3028 | vsi = pf->vsi[vf->lan_vsi_idx]; |
| 3029 | aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE); |
| 3030 | /* send the response to the VF */ |
| 3031 | err: |
| 3032 | return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT, |
| 3033 | aq_ret); |
| 3034 | } |
| 3035 | |
| 3036 | /** |
| 3037 | * i40e_vc_get_rss_hena |
| 3038 | * @vf: pointer to the VF info |
| 3039 | * @msg: pointer to the msg buffer |
| 3040 | * |
| 3041 | * Return the RSS HENA bits allowed by the hardware |
| 3042 | **/ |
| 3043 | static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg) |
| 3044 | { |
| 3045 | struct virtchnl_rss_hena *vrh = NULL; |
| 3046 | struct i40e_pf *pf = vf->pf; |
| 3047 | i40e_status aq_ret = 0; |
| 3048 | int len = 0; |
| 3049 | |
| 3050 | if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { |
| 3051 | aq_ret = I40E_ERR_PARAM; |
| 3052 | goto err; |
| 3053 | } |
| 3054 | len = sizeof(struct virtchnl_rss_hena); |
| 3055 | |
| 3056 | vrh = kzalloc(len, GFP_KERNEL); |
| 3057 | if (!vrh) { |
| 3058 | aq_ret = I40E_ERR_NO_MEMORY; |
| 3059 | len = 0; |
| 3060 | goto err; |
| 3061 | } |
| 3062 | vrh->hena = i40e_pf_get_default_rss_hena(pf); |
| 3063 | err: |
| 3064 | /* send the response back to the VF */ |
| 3065 | aq_ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_RSS_HENA_CAPS, |
| 3066 | aq_ret, (u8 *)vrh, len); |
| 3067 | kfree(vrh); |
| 3068 | return aq_ret; |
| 3069 | } |
| 3070 | |
| 3071 | /** |
| 3072 | * i40e_vc_set_rss_hena |
| 3073 | * @vf: pointer to the VF info |
| 3074 | * @msg: pointer to the msg buffer |
| 3075 | * |
| 3076 | * Set the RSS HENA bits for the VF |
| 3077 | **/ |
| 3078 | static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg) |
| 3079 | { |
| 3080 | struct virtchnl_rss_hena *vrh = |
| 3081 | (struct virtchnl_rss_hena *)msg; |
| 3082 | struct i40e_pf *pf = vf->pf; |
| 3083 | struct i40e_hw *hw = &pf->hw; |
| 3084 | i40e_status aq_ret = 0; |
| 3085 | |
| 3086 | if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { |
| 3087 | aq_ret = I40E_ERR_PARAM; |
| 3088 | goto err; |
| 3089 | } |
| 3090 | i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena); |
| 3091 | i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id), |
| 3092 | (u32)(vrh->hena >> 32)); |
| 3093 | |
| 3094 | /* send the response to the VF */ |
| 3095 | err: |
| 3096 | return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_SET_RSS_HENA, aq_ret); |
| 3097 | } |
| 3098 | |
| 3099 | /** |
| 3100 | * i40e_vc_enable_vlan_stripping |
| 3101 | * @vf: pointer to the VF info |
| 3102 | * @msg: pointer to the msg buffer |
| 3103 | * |
| 3104 | * Enable vlan header stripping for the VF |
| 3105 | **/ |
| 3106 | static int i40e_vc_enable_vlan_stripping(struct i40e_vf *vf, u8 *msg) |
| 3107 | { |
| 3108 | i40e_status aq_ret = 0; |
| 3109 | struct i40e_vsi *vsi; |
| 3110 | |
| 3111 | if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { |
| 3112 | aq_ret = I40E_ERR_PARAM; |
| 3113 | goto err; |
| 3114 | } |
| 3115 | |
| 3116 | vsi = vf->pf->vsi[vf->lan_vsi_idx]; |
| 3117 | i40e_vlan_stripping_enable(vsi); |
| 3118 | |
| 3119 | /* send the response to the VF */ |
| 3120 | err: |
| 3121 | return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING, |
| 3122 | aq_ret); |
| 3123 | } |
| 3124 | |
| 3125 | /** |
| 3126 | * i40e_vc_disable_vlan_stripping |
| 3127 | * @vf: pointer to the VF info |
| 3128 | * @msg: pointer to the msg buffer |
| 3129 | * |
| 3130 | * Disable vlan header stripping for the VF |
| 3131 | **/ |
| 3132 | static int i40e_vc_disable_vlan_stripping(struct i40e_vf *vf, u8 *msg) |
| 3133 | { |
| 3134 | i40e_status aq_ret = 0; |
| 3135 | struct i40e_vsi *vsi; |
| 3136 | |
| 3137 | if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { |
| 3138 | aq_ret = I40E_ERR_PARAM; |
| 3139 | goto err; |
| 3140 | } |
| 3141 | |
| 3142 | vsi = vf->pf->vsi[vf->lan_vsi_idx]; |
| 3143 | i40e_vlan_stripping_disable(vsi); |
| 3144 | |
| 3145 | /* send the response to the VF */ |
| 3146 | err: |
| 3147 | return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, |
| 3148 | aq_ret); |
| 3149 | } |
| 3150 | |
| 3151 | /** |
| 3152 | * i40e_validate_cloud_filter |
| 3153 | * @mask: mask for TC filter |
| 3154 | * @data: data for TC filter |
| 3155 | * |
| 3156 | * This function validates cloud filter programmed as TC filter for ADq |
| 3157 | **/ |
| 3158 | static int i40e_validate_cloud_filter(struct i40e_vf *vf, |
| 3159 | struct virtchnl_filter *tc_filter) |
| 3160 | { |
| 3161 | struct virtchnl_l4_spec mask = tc_filter->mask.tcp_spec; |
| 3162 | struct virtchnl_l4_spec data = tc_filter->data.tcp_spec; |
| 3163 | struct i40e_pf *pf = vf->pf; |
| 3164 | struct i40e_vsi *vsi = NULL; |
| 3165 | struct i40e_mac_filter *f; |
| 3166 | struct hlist_node *h; |
| 3167 | bool found = false; |
| 3168 | int bkt; |
| 3169 | |
| 3170 | if (!tc_filter->action) { |
| 3171 | dev_info(&pf->pdev->dev, |
| 3172 | "VF %d: Currently ADq doesn't support Drop Action\n", |
| 3173 | vf->vf_id); |
| 3174 | goto err; |
| 3175 | } |
| 3176 | |
| 3177 | /* action_meta is TC number here to which the filter is applied */ |
| 3178 | if (!tc_filter->action_meta || |
| 3179 | tc_filter->action_meta > I40E_MAX_VF_VSI) { |
| 3180 | dev_info(&pf->pdev->dev, "VF %d: Invalid TC number %u\n", |
| 3181 | vf->vf_id, tc_filter->action_meta); |
| 3182 | goto err; |
| 3183 | } |
| 3184 | |
| 3185 | /* Check filter if it's programmed for advanced mode or basic mode. |
| 3186 | * There are two ADq modes (for VF only), |
| 3187 | * 1. Basic mode: intended to allow as many filter options as possible |
| 3188 | * to be added to a VF in Non-trusted mode. Main goal is |
| 3189 | * to add filters to its own MAC and VLAN id. |
| 3190 | * 2. Advanced mode: is for allowing filters to be applied other than |
| 3191 | * its own MAC or VLAN. This mode requires the VF to be |
| 3192 | * Trusted. |
| 3193 | */ |
| 3194 | if (mask.dst_mac[0] && !mask.dst_ip[0]) { |
| 3195 | vsi = pf->vsi[vf->lan_vsi_idx]; |
| 3196 | f = i40e_find_mac(vsi, data.dst_mac); |
| 3197 | |
| 3198 | if (!f) { |
| 3199 | dev_info(&pf->pdev->dev, |
| 3200 | "Destination MAC %pM doesn't belong to VF %d\n", |
| 3201 | data.dst_mac, vf->vf_id); |
| 3202 | goto err; |
| 3203 | } |
| 3204 | |
| 3205 | if (mask.vlan_id) { |
| 3206 | hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, |
| 3207 | hlist) { |
| 3208 | if (f->vlan == ntohs(data.vlan_id)) { |
| 3209 | found = true; |
| 3210 | break; |
| 3211 | } |
| 3212 | } |
| 3213 | if (!found) { |
| 3214 | dev_info(&pf->pdev->dev, |
| 3215 | "VF %d doesn't have any VLAN id %u\n", |
| 3216 | vf->vf_id, ntohs(data.vlan_id)); |
| 3217 | goto err; |
| 3218 | } |
| 3219 | } |
| 3220 | } else { |
| 3221 | /* Check if VF is trusted */ |
| 3222 | if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) { |
| 3223 | dev_err(&pf->pdev->dev, |
| 3224 | "VF %d not trusted, make VF trusted to add advanced mode ADq cloud filters\n", |
| 3225 | vf->vf_id); |
| 3226 | return I40E_ERR_CONFIG; |
| 3227 | } |
| 3228 | } |
| 3229 | |
| 3230 | if (mask.dst_mac[0] & data.dst_mac[0]) { |
| 3231 | if (is_broadcast_ether_addr(data.dst_mac) || |
| 3232 | is_zero_ether_addr(data.dst_mac)) { |
| 3233 | dev_info(&pf->pdev->dev, "VF %d: Invalid Dest MAC addr %pM\n", |
| 3234 | vf->vf_id, data.dst_mac); |
| 3235 | goto err; |
| 3236 | } |
| 3237 | } |
| 3238 | |
| 3239 | if (mask.src_mac[0] & data.src_mac[0]) { |
| 3240 | if (is_broadcast_ether_addr(data.src_mac) || |
| 3241 | is_zero_ether_addr(data.src_mac)) { |
| 3242 | dev_info(&pf->pdev->dev, "VF %d: Invalid Source MAC addr %pM\n", |
| 3243 | vf->vf_id, data.src_mac); |
| 3244 | goto err; |
| 3245 | } |
| 3246 | } |
| 3247 | |
| 3248 | if (mask.dst_port & data.dst_port) { |
| 3249 | if (!data.dst_port) { |
| 3250 | dev_info(&pf->pdev->dev, "VF %d: Invalid Dest port\n", |
| 3251 | vf->vf_id); |
| 3252 | goto err; |
| 3253 | } |
| 3254 | } |
| 3255 | |
| 3256 | if (mask.src_port & data.src_port) { |
| 3257 | if (!data.src_port) { |
| 3258 | dev_info(&pf->pdev->dev, "VF %d: Invalid Source port\n", |
| 3259 | vf->vf_id); |
| 3260 | goto err; |
| 3261 | } |
| 3262 | } |
| 3263 | |
| 3264 | if (tc_filter->flow_type != VIRTCHNL_TCP_V6_FLOW && |
| 3265 | tc_filter->flow_type != VIRTCHNL_TCP_V4_FLOW) { |
| 3266 | dev_info(&pf->pdev->dev, "VF %d: Invalid Flow type\n", |
| 3267 | vf->vf_id); |
| 3268 | goto err; |
| 3269 | } |
| 3270 | |
| 3271 | if (mask.vlan_id & data.vlan_id) { |
| 3272 | if (ntohs(data.vlan_id) > I40E_MAX_VLANID) { |
| 3273 | dev_info(&pf->pdev->dev, "VF %d: invalid VLAN ID\n", |
| 3274 | vf->vf_id); |
| 3275 | goto err; |
| 3276 | } |
| 3277 | } |
| 3278 | |
| 3279 | return I40E_SUCCESS; |
| 3280 | err: |
| 3281 | return I40E_ERR_CONFIG; |
| 3282 | } |
| 3283 | |
| 3284 | /** |
| 3285 | * i40e_find_vsi_from_seid - searches for the vsi with the given seid |
| 3286 | * @vf: pointer to the VF info |
| 3287 | * @seid - seid of the vsi it is searching for |
| 3288 | **/ |
| 3289 | static struct i40e_vsi *i40e_find_vsi_from_seid(struct i40e_vf *vf, u16 seid) |
| 3290 | { |
| 3291 | struct i40e_pf *pf = vf->pf; |
| 3292 | struct i40e_vsi *vsi = NULL; |
| 3293 | int i; |
| 3294 | |
| 3295 | for (i = 0; i < vf->num_tc ; i++) { |
| 3296 | vsi = i40e_find_vsi_from_id(pf, vf->ch[i].vsi_id); |
| 3297 | if (vsi && vsi->seid == seid) |
| 3298 | return vsi; |
| 3299 | } |
| 3300 | return NULL; |
| 3301 | } |
| 3302 | |
| 3303 | /** |
| 3304 | * i40e_del_all_cloud_filters |
| 3305 | * @vf: pointer to the VF info |
| 3306 | * |
| 3307 | * This function deletes all cloud filters |
| 3308 | **/ |
| 3309 | static void i40e_del_all_cloud_filters(struct i40e_vf *vf) |
| 3310 | { |
| 3311 | struct i40e_cloud_filter *cfilter = NULL; |
| 3312 | struct i40e_pf *pf = vf->pf; |
| 3313 | struct i40e_vsi *vsi = NULL; |
| 3314 | struct hlist_node *node; |
| 3315 | int ret; |
| 3316 | |
| 3317 | hlist_for_each_entry_safe(cfilter, node, |
| 3318 | &vf->cloud_filter_list, cloud_node) { |
| 3319 | vsi = i40e_find_vsi_from_seid(vf, cfilter->seid); |
| 3320 | |
| 3321 | if (!vsi) { |
| 3322 | dev_err(&pf->pdev->dev, "VF %d: no VSI found for matching %u seid, can't delete cloud filter\n", |
| 3323 | vf->vf_id, cfilter->seid); |
| 3324 | continue; |
| 3325 | } |
| 3326 | |
| 3327 | if (cfilter->dst_port) |
| 3328 | ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, |
| 3329 | false); |
| 3330 | else |
| 3331 | ret = i40e_add_del_cloud_filter(vsi, cfilter, false); |
| 3332 | if (ret) |
| 3333 | dev_err(&pf->pdev->dev, |
| 3334 | "VF %d: Failed to delete cloud filter, err %s aq_err %s\n", |
| 3335 | vf->vf_id, i40e_stat_str(&pf->hw, ret), |
| 3336 | i40e_aq_str(&pf->hw, |
| 3337 | pf->hw.aq.asq_last_status)); |
| 3338 | |
| 3339 | hlist_del(&cfilter->cloud_node); |
| 3340 | kfree(cfilter); |
| 3341 | vf->num_cloud_filters--; |
| 3342 | } |
| 3343 | } |
| 3344 | |
| 3345 | /** |
| 3346 | * i40e_vc_del_cloud_filter |
| 3347 | * @vf: pointer to the VF info |
| 3348 | * @msg: pointer to the msg buffer |
| 3349 | * |
| 3350 | * This function deletes a cloud filter programmed as TC filter for ADq |
| 3351 | **/ |
| 3352 | static int i40e_vc_del_cloud_filter(struct i40e_vf *vf, u8 *msg) |
| 3353 | { |
| 3354 | struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg; |
| 3355 | struct virtchnl_l4_spec mask = vcf->mask.tcp_spec; |
| 3356 | struct virtchnl_l4_spec tcf = vcf->data.tcp_spec; |
| 3357 | struct i40e_cloud_filter cfilter, *cf = NULL; |
| 3358 | struct i40e_pf *pf = vf->pf; |
| 3359 | struct i40e_vsi *vsi = NULL; |
| 3360 | struct hlist_node *node; |
| 3361 | i40e_status aq_ret = 0; |
| 3362 | int i, ret; |
| 3363 | |
| 3364 | if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { |
| 3365 | aq_ret = I40E_ERR_PARAM; |
| 3366 | goto err; |
| 3367 | } |
| 3368 | |
| 3369 | if (!vf->adq_enabled) { |
| 3370 | dev_info(&pf->pdev->dev, |
| 3371 | "VF %d: ADq not enabled, can't apply cloud filter\n", |
| 3372 | vf->vf_id); |
| 3373 | aq_ret = I40E_ERR_PARAM; |
| 3374 | goto err; |
| 3375 | } |
| 3376 | |
| 3377 | if (i40e_validate_cloud_filter(vf, vcf)) { |
| 3378 | dev_info(&pf->pdev->dev, |
| 3379 | "VF %d: Invalid input, can't apply cloud filter\n", |
| 3380 | vf->vf_id); |
| 3381 | aq_ret = I40E_ERR_PARAM; |
| 3382 | goto err; |
| 3383 | } |
| 3384 | |
| 3385 | memset(&cfilter, 0, sizeof(cfilter)); |
| 3386 | /* parse destination mac address */ |
| 3387 | for (i = 0; i < ETH_ALEN; i++) |
| 3388 | cfilter.dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i]; |
| 3389 | |
| 3390 | /* parse source mac address */ |
| 3391 | for (i = 0; i < ETH_ALEN; i++) |
| 3392 | cfilter.src_mac[i] = mask.src_mac[i] & tcf.src_mac[i]; |
| 3393 | |
| 3394 | cfilter.vlan_id = mask.vlan_id & tcf.vlan_id; |
| 3395 | cfilter.dst_port = mask.dst_port & tcf.dst_port; |
| 3396 | cfilter.src_port = mask.src_port & tcf.src_port; |
| 3397 | |
| 3398 | switch (vcf->flow_type) { |
| 3399 | case VIRTCHNL_TCP_V4_FLOW: |
| 3400 | cfilter.n_proto = ETH_P_IP; |
| 3401 | if (mask.dst_ip[0] & tcf.dst_ip[0]) |
| 3402 | memcpy(&cfilter.ip.v4.dst_ip, tcf.dst_ip, |
| 3403 | ARRAY_SIZE(tcf.dst_ip)); |
| 3404 | else if (mask.src_ip[0] & tcf.dst_ip[0]) |
| 3405 | memcpy(&cfilter.ip.v4.src_ip, tcf.src_ip, |
| 3406 | ARRAY_SIZE(tcf.dst_ip)); |
| 3407 | break; |
| 3408 | case VIRTCHNL_TCP_V6_FLOW: |
| 3409 | cfilter.n_proto = ETH_P_IPV6; |
| 3410 | if (mask.dst_ip[3] & tcf.dst_ip[3]) |
| 3411 | memcpy(&cfilter.ip.v6.dst_ip6, tcf.dst_ip, |
| 3412 | sizeof(cfilter.ip.v6.dst_ip6)); |
| 3413 | if (mask.src_ip[3] & tcf.src_ip[3]) |
| 3414 | memcpy(&cfilter.ip.v6.src_ip6, tcf.src_ip, |
| 3415 | sizeof(cfilter.ip.v6.src_ip6)); |
| 3416 | break; |
| 3417 | default: |
| 3418 | /* TC filter can be configured based on different combinations |
| 3419 | * and in this case IP is not a part of filter config |
| 3420 | */ |
| 3421 | dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n", |
| 3422 | vf->vf_id); |
| 3423 | } |
| 3424 | |
| 3425 | /* get the vsi to which the tc belongs to */ |
| 3426 | vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx]; |
| 3427 | cfilter.seid = vsi->seid; |
| 3428 | cfilter.flags = vcf->field_flags; |
| 3429 | |
| 3430 | /* Deleting TC filter */ |
| 3431 | if (tcf.dst_port) |
| 3432 | ret = i40e_add_del_cloud_filter_big_buf(vsi, &cfilter, false); |
| 3433 | else |
| 3434 | ret = i40e_add_del_cloud_filter(vsi, &cfilter, false); |
| 3435 | if (ret) { |
| 3436 | dev_err(&pf->pdev->dev, |
| 3437 | "VF %d: Failed to delete cloud filter, err %s aq_err %s\n", |
| 3438 | vf->vf_id, i40e_stat_str(&pf->hw, ret), |
| 3439 | i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); |
| 3440 | goto err; |
| 3441 | } |
| 3442 | |
| 3443 | hlist_for_each_entry_safe(cf, node, |
| 3444 | &vf->cloud_filter_list, cloud_node) { |
| 3445 | if (cf->seid != cfilter.seid) |
| 3446 | continue; |
| 3447 | if (mask.dst_port) |
| 3448 | if (cfilter.dst_port != cf->dst_port) |
| 3449 | continue; |
| 3450 | if (mask.dst_mac[0]) |
| 3451 | if (!ether_addr_equal(cf->src_mac, cfilter.src_mac)) |
| 3452 | continue; |
| 3453 | /* for ipv4 data to be valid, only first byte of mask is set */ |
| 3454 | if (cfilter.n_proto == ETH_P_IP && mask.dst_ip[0]) |
| 3455 | if (memcmp(&cfilter.ip.v4.dst_ip, &cf->ip.v4.dst_ip, |
| 3456 | ARRAY_SIZE(tcf.dst_ip))) |
| 3457 | continue; |
| 3458 | /* for ipv6, mask is set for all sixteen bytes (4 words) */ |
| 3459 | if (cfilter.n_proto == ETH_P_IPV6 && mask.dst_ip[3]) |
| 3460 | if (memcmp(&cfilter.ip.v6.dst_ip6, &cf->ip.v6.dst_ip6, |
| 3461 | sizeof(cfilter.ip.v6.src_ip6))) |
| 3462 | continue; |
| 3463 | if (mask.vlan_id) |
| 3464 | if (cfilter.vlan_id != cf->vlan_id) |
| 3465 | continue; |
| 3466 | |
| 3467 | hlist_del(&cf->cloud_node); |
| 3468 | kfree(cf); |
| 3469 | vf->num_cloud_filters--; |
| 3470 | } |
| 3471 | |
| 3472 | err: |
| 3473 | return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_CLOUD_FILTER, |
| 3474 | aq_ret); |
| 3475 | } |
| 3476 | |
| 3477 | /** |
| 3478 | * i40e_vc_add_cloud_filter |
| 3479 | * @vf: pointer to the VF info |
| 3480 | * @msg: pointer to the msg buffer |
| 3481 | * |
| 3482 | * This function adds a cloud filter programmed as TC filter for ADq |
| 3483 | **/ |
| 3484 | static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg) |
| 3485 | { |
| 3486 | struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg; |
| 3487 | struct virtchnl_l4_spec mask = vcf->mask.tcp_spec; |
| 3488 | struct virtchnl_l4_spec tcf = vcf->data.tcp_spec; |
| 3489 | struct i40e_cloud_filter *cfilter = NULL; |
| 3490 | struct i40e_pf *pf = vf->pf; |
| 3491 | struct i40e_vsi *vsi = NULL; |
| 3492 | i40e_status aq_ret = 0; |
| 3493 | int i, ret; |
| 3494 | |
| 3495 | if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { |
| 3496 | aq_ret = I40E_ERR_PARAM; |
| 3497 | goto err_out; |
| 3498 | } |
| 3499 | |
| 3500 | if (!vf->adq_enabled) { |
| 3501 | dev_info(&pf->pdev->dev, |
| 3502 | "VF %d: ADq is not enabled, can't apply cloud filter\n", |
| 3503 | vf->vf_id); |
| 3504 | aq_ret = I40E_ERR_PARAM; |
| 3505 | goto err_out; |
| 3506 | } |
| 3507 | |
| 3508 | if (i40e_validate_cloud_filter(vf, vcf)) { |
| 3509 | dev_info(&pf->pdev->dev, |
| 3510 | "VF %d: Invalid input/s, can't apply cloud filter\n", |
| 3511 | vf->vf_id); |
| 3512 | aq_ret = I40E_ERR_PARAM; |
| 3513 | goto err_out; |
| 3514 | } |
| 3515 | |
| 3516 | cfilter = kzalloc(sizeof(*cfilter), GFP_KERNEL); |
| 3517 | if (!cfilter) |
| 3518 | return -ENOMEM; |
| 3519 | |
| 3520 | /* parse destination mac address */ |
| 3521 | for (i = 0; i < ETH_ALEN; i++) |
| 3522 | cfilter->dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i]; |
| 3523 | |
| 3524 | /* parse source mac address */ |
| 3525 | for (i = 0; i < ETH_ALEN; i++) |
| 3526 | cfilter->src_mac[i] = mask.src_mac[i] & tcf.src_mac[i]; |
| 3527 | |
| 3528 | cfilter->vlan_id = mask.vlan_id & tcf.vlan_id; |
| 3529 | cfilter->dst_port = mask.dst_port & tcf.dst_port; |
| 3530 | cfilter->src_port = mask.src_port & tcf.src_port; |
| 3531 | |
| 3532 | switch (vcf->flow_type) { |
| 3533 | case VIRTCHNL_TCP_V4_FLOW: |
| 3534 | cfilter->n_proto = ETH_P_IP; |
| 3535 | if (mask.dst_ip[0] & tcf.dst_ip[0]) |
| 3536 | memcpy(&cfilter->ip.v4.dst_ip, tcf.dst_ip, |
| 3537 | ARRAY_SIZE(tcf.dst_ip)); |
| 3538 | else if (mask.src_ip[0] & tcf.dst_ip[0]) |
| 3539 | memcpy(&cfilter->ip.v4.src_ip, tcf.src_ip, |
| 3540 | ARRAY_SIZE(tcf.dst_ip)); |
| 3541 | break; |
| 3542 | case VIRTCHNL_TCP_V6_FLOW: |
| 3543 | cfilter->n_proto = ETH_P_IPV6; |
| 3544 | if (mask.dst_ip[3] & tcf.dst_ip[3]) |
| 3545 | memcpy(&cfilter->ip.v6.dst_ip6, tcf.dst_ip, |
| 3546 | sizeof(cfilter->ip.v6.dst_ip6)); |
| 3547 | if (mask.src_ip[3] & tcf.src_ip[3]) |
| 3548 | memcpy(&cfilter->ip.v6.src_ip6, tcf.src_ip, |
| 3549 | sizeof(cfilter->ip.v6.src_ip6)); |
| 3550 | break; |
| 3551 | default: |
| 3552 | /* TC filter can be configured based on different combinations |
| 3553 | * and in this case IP is not a part of filter config |
| 3554 | */ |
| 3555 | dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n", |
| 3556 | vf->vf_id); |
| 3557 | } |
| 3558 | |
| 3559 | /* get the VSI to which the TC belongs to */ |
| 3560 | vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx]; |
| 3561 | cfilter->seid = vsi->seid; |
| 3562 | cfilter->flags = vcf->field_flags; |
| 3563 | |
| 3564 | /* Adding cloud filter programmed as TC filter */ |
| 3565 | if (tcf.dst_port) |
| 3566 | ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, true); |
| 3567 | else |
| 3568 | ret = i40e_add_del_cloud_filter(vsi, cfilter, true); |
| 3569 | if (ret) { |
| 3570 | dev_err(&pf->pdev->dev, |
| 3571 | "VF %d: Failed to add cloud filter, err %s aq_err %s\n", |
| 3572 | vf->vf_id, i40e_stat_str(&pf->hw, ret), |
| 3573 | i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status)); |
| 3574 | goto err_free; |
| 3575 | } |
| 3576 | |
| 3577 | INIT_HLIST_NODE(&cfilter->cloud_node); |
| 3578 | hlist_add_head(&cfilter->cloud_node, &vf->cloud_filter_list); |
| 3579 | /* release the pointer passing it to the collection */ |
| 3580 | cfilter = NULL; |
| 3581 | vf->num_cloud_filters++; |
| 3582 | err_free: |
| 3583 | kfree(cfilter); |
| 3584 | err_out: |
| 3585 | return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_CLOUD_FILTER, |
| 3586 | aq_ret); |
| 3587 | } |
| 3588 | |
| 3589 | /** |
| 3590 | * i40e_vc_add_qch_msg: Add queue channel and enable ADq |
| 3591 | * @vf: pointer to the VF info |
| 3592 | * @msg: pointer to the msg buffer |
| 3593 | **/ |
| 3594 | static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg) |
| 3595 | { |
| 3596 | struct virtchnl_tc_info *tci = |
| 3597 | (struct virtchnl_tc_info *)msg; |
| 3598 | struct i40e_pf *pf = vf->pf; |
| 3599 | struct i40e_link_status *ls = &pf->hw.phy.link_info; |
| 3600 | int i, adq_request_qps = 0; |
| 3601 | i40e_status aq_ret = 0; |
| 3602 | u64 speed = 0; |
| 3603 | |
| 3604 | if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { |
| 3605 | aq_ret = I40E_ERR_PARAM; |
| 3606 | goto err; |
| 3607 | } |
| 3608 | |
| 3609 | /* ADq cannot be applied if spoof check is ON */ |
| 3610 | if (vf->spoofchk) { |
| 3611 | dev_err(&pf->pdev->dev, |
| 3612 | "Spoof check is ON, turn it OFF to enable ADq\n"); |
| 3613 | aq_ret = I40E_ERR_PARAM; |
| 3614 | goto err; |
| 3615 | } |
| 3616 | |
| 3617 | if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)) { |
| 3618 | dev_err(&pf->pdev->dev, |
| 3619 | "VF %d attempting to enable ADq, but hasn't properly negotiated that capability\n", |
| 3620 | vf->vf_id); |
| 3621 | aq_ret = I40E_ERR_PARAM; |
| 3622 | goto err; |
| 3623 | } |
| 3624 | |
| 3625 | /* max number of traffic classes for VF currently capped at 4 */ |
| 3626 | if (!tci->num_tc || tci->num_tc > I40E_MAX_VF_VSI) { |
| 3627 | dev_err(&pf->pdev->dev, |
| 3628 | "VF %d trying to set %u TCs, valid range 1-%u TCs per VF\n", |
| 3629 | vf->vf_id, tci->num_tc, I40E_MAX_VF_VSI); |
| 3630 | aq_ret = I40E_ERR_PARAM; |
| 3631 | goto err; |
| 3632 | } |
| 3633 | |
| 3634 | /* validate queues for each TC */ |
| 3635 | for (i = 0; i < tci->num_tc; i++) |
| 3636 | if (!tci->list[i].count || |
| 3637 | tci->list[i].count > I40E_DEFAULT_QUEUES_PER_VF) { |
| 3638 | dev_err(&pf->pdev->dev, |
| 3639 | "VF %d: TC %d trying to set %u queues, valid range 1-%u queues per TC\n", |
| 3640 | vf->vf_id, i, tci->list[i].count, |
| 3641 | I40E_DEFAULT_QUEUES_PER_VF); |
| 3642 | aq_ret = I40E_ERR_PARAM; |
| 3643 | goto err; |
| 3644 | } |
| 3645 | |
| 3646 | /* need Max VF queues but already have default number of queues */ |
| 3647 | adq_request_qps = I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF; |
| 3648 | |
| 3649 | if (pf->queues_left < adq_request_qps) { |
| 3650 | dev_err(&pf->pdev->dev, |
| 3651 | "No queues left to allocate to VF %d\n", |
| 3652 | vf->vf_id); |
| 3653 | aq_ret = I40E_ERR_PARAM; |
| 3654 | goto err; |
| 3655 | } else { |
| 3656 | /* we need to allocate max VF queues to enable ADq so as to |
| 3657 | * make sure ADq enabled VF always gets back queues when it |
| 3658 | * goes through a reset. |
| 3659 | */ |
| 3660 | vf->num_queue_pairs = I40E_MAX_VF_QUEUES; |
| 3661 | } |
| 3662 | |
| 3663 | /* get link speed in MB to validate rate limit */ |
| 3664 | switch (ls->link_speed) { |
| 3665 | case VIRTCHNL_LINK_SPEED_100MB: |
| 3666 | speed = SPEED_100; |
| 3667 | break; |
| 3668 | case VIRTCHNL_LINK_SPEED_1GB: |
| 3669 | speed = SPEED_1000; |
| 3670 | break; |
| 3671 | case VIRTCHNL_LINK_SPEED_10GB: |
| 3672 | speed = SPEED_10000; |
| 3673 | break; |
| 3674 | case VIRTCHNL_LINK_SPEED_20GB: |
| 3675 | speed = SPEED_20000; |
| 3676 | break; |
| 3677 | case VIRTCHNL_LINK_SPEED_25GB: |
| 3678 | speed = SPEED_25000; |
| 3679 | break; |
| 3680 | case VIRTCHNL_LINK_SPEED_40GB: |
| 3681 | speed = SPEED_40000; |
| 3682 | break; |
| 3683 | default: |
| 3684 | dev_err(&pf->pdev->dev, |
| 3685 | "Cannot detect link speed\n"); |
| 3686 | aq_ret = I40E_ERR_PARAM; |
| 3687 | goto err; |
| 3688 | } |
| 3689 | |
| 3690 | /* parse data from the queue channel info */ |
| 3691 | vf->num_tc = tci->num_tc; |
| 3692 | for (i = 0; i < vf->num_tc; i++) { |
| 3693 | if (tci->list[i].max_tx_rate) { |
| 3694 | if (tci->list[i].max_tx_rate > speed) { |
| 3695 | dev_err(&pf->pdev->dev, |
| 3696 | "Invalid max tx rate %llu specified for VF %d.", |
| 3697 | tci->list[i].max_tx_rate, |
| 3698 | vf->vf_id); |
| 3699 | aq_ret = I40E_ERR_PARAM; |
| 3700 | goto err; |
| 3701 | } else { |
| 3702 | vf->ch[i].max_tx_rate = |
| 3703 | tci->list[i].max_tx_rate; |
| 3704 | } |
| 3705 | } |
| 3706 | vf->ch[i].num_qps = tci->list[i].count; |
| 3707 | } |
| 3708 | |
| 3709 | /* set this flag only after making sure all inputs are sane */ |
| 3710 | vf->adq_enabled = true; |
| 3711 | /* num_req_queues is set when user changes number of queues via ethtool |
| 3712 | * and this causes issue for default VSI(which depends on this variable) |
| 3713 | * when ADq is enabled, hence reset it. |
| 3714 | */ |
| 3715 | vf->num_req_queues = 0; |
| 3716 | |
| 3717 | /* reset the VF in order to allocate resources */ |
| 3718 | i40e_vc_notify_vf_reset(vf); |
| 3719 | i40e_reset_vf(vf, false); |
| 3720 | |
| 3721 | return I40E_SUCCESS; |
| 3722 | |
| 3723 | /* send the response to the VF */ |
| 3724 | err: |
| 3725 | return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_CHANNELS, |
| 3726 | aq_ret); |
| 3727 | } |
| 3728 | |
| 3729 | /** |
| 3730 | * i40e_vc_del_qch_msg |
| 3731 | * @vf: pointer to the VF info |
| 3732 | * @msg: pointer to the msg buffer |
| 3733 | **/ |
| 3734 | static int i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg) |
| 3735 | { |
| 3736 | struct i40e_pf *pf = vf->pf; |
| 3737 | i40e_status aq_ret = 0; |
| 3738 | |
| 3739 | if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) { |
| 3740 | aq_ret = I40E_ERR_PARAM; |
| 3741 | goto err; |
| 3742 | } |
| 3743 | |
| 3744 | if (vf->adq_enabled) { |
| 3745 | i40e_del_all_cloud_filters(vf); |
| 3746 | i40e_del_qch(vf); |
| 3747 | vf->adq_enabled = false; |
| 3748 | vf->num_tc = 0; |
| 3749 | dev_info(&pf->pdev->dev, |
| 3750 | "Deleting Queue Channels and cloud filters for ADq on VF %d\n", |
| 3751 | vf->vf_id); |
| 3752 | } else { |
| 3753 | dev_info(&pf->pdev->dev, "VF %d trying to delete queue channels but ADq isn't enabled\n", |
| 3754 | vf->vf_id); |
| 3755 | aq_ret = I40E_ERR_PARAM; |
| 3756 | } |
| 3757 | |
| 3758 | /* reset the VF in order to allocate resources */ |
| 3759 | i40e_vc_notify_vf_reset(vf); |
| 3760 | i40e_reset_vf(vf, false); |
| 3761 | |
| 3762 | return I40E_SUCCESS; |
| 3763 | |
| 3764 | err: |
| 3765 | return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_CHANNELS, |
| 3766 | aq_ret); |
| 3767 | } |
| 3768 | |
| 3769 | /** |
| 3770 | * i40e_vc_process_vf_msg |
| 3771 | * @pf: pointer to the PF structure |
| 3772 | * @vf_id: source VF id |
| 3773 | * @v_opcode: operation code |
| 3774 | * @v_retval: unused return value code |
| 3775 | * @msg: pointer to the msg buffer |
| 3776 | * @msglen: msg length |
| 3777 | * |
| 3778 | * called from the common aeq/arq handler to |
| 3779 | * process request from VF |
| 3780 | **/ |
| 3781 | int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode, |
| 3782 | u32 __always_unused v_retval, u8 *msg, u16 msglen) |
| 3783 | { |
| 3784 | struct i40e_hw *hw = &pf->hw; |
| 3785 | int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id; |
| 3786 | struct i40e_vf *vf; |
| 3787 | int ret; |
| 3788 | |
| 3789 | pf->vf_aq_requests++; |
| 3790 | if (local_vf_id < 0 || local_vf_id >= pf->num_alloc_vfs) |
| 3791 | return -EINVAL; |
| 3792 | vf = &(pf->vf[local_vf_id]); |
| 3793 | |
| 3794 | /* Check if VF is disabled. */ |
| 3795 | if (test_bit(I40E_VF_STATE_DISABLED, &vf->vf_states)) |
| 3796 | return I40E_ERR_PARAM; |
| 3797 | |
| 3798 | /* perform basic checks on the msg */ |
| 3799 | ret = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen); |
| 3800 | |
| 3801 | if (ret) { |
| 3802 | i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM); |
| 3803 | dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n", |
| 3804 | local_vf_id, v_opcode, msglen); |
| 3805 | switch (ret) { |
| 3806 | case VIRTCHNL_STATUS_ERR_PARAM: |
| 3807 | return -EPERM; |
| 3808 | default: |
| 3809 | return -EINVAL; |
| 3810 | } |
| 3811 | } |
| 3812 | |
| 3813 | switch (v_opcode) { |
| 3814 | case VIRTCHNL_OP_VERSION: |
| 3815 | ret = i40e_vc_get_version_msg(vf, msg); |
| 3816 | break; |
| 3817 | case VIRTCHNL_OP_GET_VF_RESOURCES: |
| 3818 | ret = i40e_vc_get_vf_resources_msg(vf, msg); |
| 3819 | i40e_vc_notify_vf_link_state(vf); |
| 3820 | break; |
| 3821 | case VIRTCHNL_OP_RESET_VF: |
| 3822 | i40e_vc_reset_vf_msg(vf); |
| 3823 | ret = 0; |
| 3824 | break; |
| 3825 | case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE: |
| 3826 | ret = i40e_vc_config_promiscuous_mode_msg(vf, msg); |
| 3827 | break; |
| 3828 | case VIRTCHNL_OP_CONFIG_VSI_QUEUES: |
| 3829 | ret = i40e_vc_config_queues_msg(vf, msg); |
| 3830 | break; |
| 3831 | case VIRTCHNL_OP_CONFIG_IRQ_MAP: |
| 3832 | ret = i40e_vc_config_irq_map_msg(vf, msg); |
| 3833 | break; |
| 3834 | case VIRTCHNL_OP_ENABLE_QUEUES: |
| 3835 | ret = i40e_vc_enable_queues_msg(vf, msg); |
| 3836 | i40e_vc_notify_vf_link_state(vf); |
| 3837 | break; |
| 3838 | case VIRTCHNL_OP_DISABLE_QUEUES: |
| 3839 | ret = i40e_vc_disable_queues_msg(vf, msg); |
| 3840 | break; |
| 3841 | case VIRTCHNL_OP_ADD_ETH_ADDR: |
| 3842 | ret = i40e_vc_add_mac_addr_msg(vf, msg); |
| 3843 | break; |
| 3844 | case VIRTCHNL_OP_DEL_ETH_ADDR: |
| 3845 | ret = i40e_vc_del_mac_addr_msg(vf, msg); |
| 3846 | break; |
| 3847 | case VIRTCHNL_OP_ADD_VLAN: |
| 3848 | ret = i40e_vc_add_vlan_msg(vf, msg); |
| 3849 | break; |
| 3850 | case VIRTCHNL_OP_DEL_VLAN: |
| 3851 | ret = i40e_vc_remove_vlan_msg(vf, msg); |
| 3852 | break; |
| 3853 | case VIRTCHNL_OP_GET_STATS: |
| 3854 | ret = i40e_vc_get_stats_msg(vf, msg); |
| 3855 | break; |
| 3856 | case VIRTCHNL_OP_IWARP: |
| 3857 | ret = i40e_vc_iwarp_msg(vf, msg, msglen); |
| 3858 | break; |
| 3859 | case VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP: |
| 3860 | ret = i40e_vc_iwarp_qvmap_msg(vf, msg, true); |
| 3861 | break; |
| 3862 | case VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP: |
| 3863 | ret = i40e_vc_iwarp_qvmap_msg(vf, msg, false); |
| 3864 | break; |
| 3865 | case VIRTCHNL_OP_CONFIG_RSS_KEY: |
| 3866 | ret = i40e_vc_config_rss_key(vf, msg); |
| 3867 | break; |
| 3868 | case VIRTCHNL_OP_CONFIG_RSS_LUT: |
| 3869 | ret = i40e_vc_config_rss_lut(vf, msg); |
| 3870 | break; |
| 3871 | case VIRTCHNL_OP_GET_RSS_HENA_CAPS: |
| 3872 | ret = i40e_vc_get_rss_hena(vf, msg); |
| 3873 | break; |
| 3874 | case VIRTCHNL_OP_SET_RSS_HENA: |
| 3875 | ret = i40e_vc_set_rss_hena(vf, msg); |
| 3876 | break; |
| 3877 | case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING: |
| 3878 | ret = i40e_vc_enable_vlan_stripping(vf, msg); |
| 3879 | break; |
| 3880 | case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING: |
| 3881 | ret = i40e_vc_disable_vlan_stripping(vf, msg); |
| 3882 | break; |
| 3883 | case VIRTCHNL_OP_REQUEST_QUEUES: |
| 3884 | ret = i40e_vc_request_queues_msg(vf, msg); |
| 3885 | break; |
| 3886 | case VIRTCHNL_OP_ENABLE_CHANNELS: |
| 3887 | ret = i40e_vc_add_qch_msg(vf, msg); |
| 3888 | break; |
| 3889 | case VIRTCHNL_OP_DISABLE_CHANNELS: |
| 3890 | ret = i40e_vc_del_qch_msg(vf, msg); |
| 3891 | break; |
| 3892 | case VIRTCHNL_OP_ADD_CLOUD_FILTER: |
| 3893 | ret = i40e_vc_add_cloud_filter(vf, msg); |
| 3894 | break; |
| 3895 | case VIRTCHNL_OP_DEL_CLOUD_FILTER: |
| 3896 | ret = i40e_vc_del_cloud_filter(vf, msg); |
| 3897 | break; |
| 3898 | case VIRTCHNL_OP_UNKNOWN: |
| 3899 | default: |
| 3900 | dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n", |
| 3901 | v_opcode, local_vf_id); |
| 3902 | ret = i40e_vc_send_resp_to_vf(vf, v_opcode, |
| 3903 | I40E_ERR_NOT_IMPLEMENTED); |
| 3904 | break; |
| 3905 | } |
| 3906 | |
| 3907 | return ret; |
| 3908 | } |
| 3909 | |
| 3910 | /** |
| 3911 | * i40e_vc_process_vflr_event |
| 3912 | * @pf: pointer to the PF structure |
| 3913 | * |
| 3914 | * called from the vlfr irq handler to |
| 3915 | * free up VF resources and state variables |
| 3916 | **/ |
| 3917 | int i40e_vc_process_vflr_event(struct i40e_pf *pf) |
| 3918 | { |
| 3919 | struct i40e_hw *hw = &pf->hw; |
| 3920 | u32 reg, reg_idx, bit_idx; |
| 3921 | struct i40e_vf *vf; |
| 3922 | int vf_id; |
| 3923 | |
| 3924 | if (!test_bit(__I40E_VFLR_EVENT_PENDING, pf->state)) |
| 3925 | return 0; |
| 3926 | |
| 3927 | /* Re-enable the VFLR interrupt cause here, before looking for which |
| 3928 | * VF got reset. Otherwise, if another VF gets a reset while the |
| 3929 | * first one is being processed, that interrupt will be lost, and |
| 3930 | * that VF will be stuck in reset forever. |
| 3931 | */ |
| 3932 | reg = rd32(hw, I40E_PFINT_ICR0_ENA); |
| 3933 | reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK; |
| 3934 | wr32(hw, I40E_PFINT_ICR0_ENA, reg); |
| 3935 | i40e_flush(hw); |
| 3936 | |
| 3937 | clear_bit(__I40E_VFLR_EVENT_PENDING, pf->state); |
| 3938 | for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) { |
| 3939 | reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32; |
| 3940 | bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32; |
| 3941 | /* read GLGEN_VFLRSTAT register to find out the flr VFs */ |
| 3942 | vf = &pf->vf[vf_id]; |
| 3943 | reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx)); |
| 3944 | if (reg & BIT(bit_idx)) |
| 3945 | /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */ |
| 3946 | i40e_reset_vf(vf, true); |
| 3947 | } |
| 3948 | |
| 3949 | return 0; |
| 3950 | } |
| 3951 | |
| 3952 | /** |
| 3953 | * i40e_validate_vf |
| 3954 | * @pf: the physical function |
| 3955 | * @vf_id: VF identifier |
| 3956 | * |
| 3957 | * Check that the VF is enabled and the VSI exists. |
| 3958 | * |
| 3959 | * Returns 0 on success, negative on failure |
| 3960 | **/ |
| 3961 | static int i40e_validate_vf(struct i40e_pf *pf, int vf_id) |
| 3962 | { |
| 3963 | struct i40e_vsi *vsi; |
| 3964 | struct i40e_vf *vf; |
| 3965 | int ret = 0; |
| 3966 | |
| 3967 | if (vf_id >= pf->num_alloc_vfs) { |
| 3968 | dev_err(&pf->pdev->dev, |
| 3969 | "Invalid VF Identifier %d\n", vf_id); |
| 3970 | ret = -EINVAL; |
| 3971 | goto err_out; |
| 3972 | } |
| 3973 | vf = &pf->vf[vf_id]; |
| 3974 | vsi = i40e_find_vsi_from_id(pf, vf->lan_vsi_id); |
| 3975 | if (!vsi) |
| 3976 | ret = -EINVAL; |
| 3977 | err_out: |
| 3978 | return ret; |
| 3979 | } |
| 3980 | |
| 3981 | /** |
| 3982 | * i40e_ndo_set_vf_mac |
| 3983 | * @netdev: network interface device structure |
| 3984 | * @vf_id: VF identifier |
| 3985 | * @mac: mac address |
| 3986 | * |
| 3987 | * program VF mac address |
| 3988 | **/ |
| 3989 | int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac) |
| 3990 | { |
| 3991 | struct i40e_netdev_priv *np = netdev_priv(netdev); |
| 3992 | struct i40e_vsi *vsi = np->vsi; |
| 3993 | struct i40e_pf *pf = vsi->back; |
| 3994 | struct i40e_mac_filter *f; |
| 3995 | struct i40e_vf *vf; |
| 3996 | int ret = 0; |
| 3997 | struct hlist_node *h; |
| 3998 | int bkt; |
| 3999 | u8 i; |
| 4000 | |
| 4001 | if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { |
| 4002 | dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); |
| 4003 | return -EAGAIN; |
| 4004 | } |
| 4005 | |
| 4006 | /* validate the request */ |
| 4007 | ret = i40e_validate_vf(pf, vf_id); |
| 4008 | if (ret) |
| 4009 | goto error_param; |
| 4010 | |
| 4011 | vf = &pf->vf[vf_id]; |
| 4012 | vsi = pf->vsi[vf->lan_vsi_idx]; |
| 4013 | |
| 4014 | /* When the VF is resetting wait until it is done. |
| 4015 | * It can take up to 200 milliseconds, |
| 4016 | * but wait for up to 300 milliseconds to be safe. |
| 4017 | * If the VF is indeed in reset, the vsi pointer has |
| 4018 | * to show on the newly loaded vsi under pf->vsi[id]. |
| 4019 | */ |
| 4020 | for (i = 0; i < 15; i++) { |
| 4021 | if (test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { |
| 4022 | if (i > 0) |
| 4023 | vsi = pf->vsi[vf->lan_vsi_idx]; |
| 4024 | break; |
| 4025 | } |
| 4026 | msleep(20); |
| 4027 | } |
| 4028 | if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { |
| 4029 | dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", |
| 4030 | vf_id); |
| 4031 | ret = -EAGAIN; |
| 4032 | goto error_param; |
| 4033 | } |
| 4034 | |
| 4035 | if (is_multicast_ether_addr(mac)) { |
| 4036 | dev_err(&pf->pdev->dev, |
| 4037 | "Invalid Ethernet address %pM for VF %d\n", mac, vf_id); |
| 4038 | ret = -EINVAL; |
| 4039 | goto error_param; |
| 4040 | } |
| 4041 | |
| 4042 | /* Lock once because below invoked function add/del_filter requires |
| 4043 | * mac_filter_hash_lock to be held |
| 4044 | */ |
| 4045 | spin_lock_bh(&vsi->mac_filter_hash_lock); |
| 4046 | |
| 4047 | /* delete the temporary mac address */ |
| 4048 | if (!is_zero_ether_addr(vf->default_lan_addr.addr)) |
| 4049 | i40e_del_mac_filter(vsi, vf->default_lan_addr.addr); |
| 4050 | |
| 4051 | /* Delete all the filters for this VSI - we're going to kill it |
| 4052 | * anyway. |
| 4053 | */ |
| 4054 | hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist) |
| 4055 | __i40e_del_filter(vsi, f); |
| 4056 | |
| 4057 | spin_unlock_bh(&vsi->mac_filter_hash_lock); |
| 4058 | |
| 4059 | /* program mac filter */ |
| 4060 | if (i40e_sync_vsi_filters(vsi)) { |
| 4061 | dev_err(&pf->pdev->dev, "Unable to program ucast filters\n"); |
| 4062 | ret = -EIO; |
| 4063 | goto error_param; |
| 4064 | } |
| 4065 | ether_addr_copy(vf->default_lan_addr.addr, mac); |
| 4066 | |
| 4067 | if (is_zero_ether_addr(mac)) { |
| 4068 | vf->pf_set_mac = false; |
| 4069 | dev_info(&pf->pdev->dev, "Removing MAC on VF %d\n", vf_id); |
| 4070 | } else { |
| 4071 | vf->pf_set_mac = true; |
| 4072 | dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", |
| 4073 | mac, vf_id); |
| 4074 | } |
| 4075 | |
| 4076 | /* Force the VF interface down so it has to bring up with new MAC |
| 4077 | * address |
| 4078 | */ |
| 4079 | i40e_vc_disable_vf(vf); |
| 4080 | dev_info(&pf->pdev->dev, "Bring down and up the VF interface to make this change effective.\n"); |
| 4081 | |
| 4082 | error_param: |
| 4083 | clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); |
| 4084 | return ret; |
| 4085 | } |
| 4086 | |
| 4087 | /** |
| 4088 | * i40e_vsi_has_vlans - True if VSI has configured VLANs |
| 4089 | * @vsi: pointer to the vsi |
| 4090 | * |
| 4091 | * Check if a VSI has configured any VLANs. False if we have a port VLAN or if |
| 4092 | * we have no configured VLANs. Do not call while holding the |
| 4093 | * mac_filter_hash_lock. |
| 4094 | */ |
| 4095 | static bool i40e_vsi_has_vlans(struct i40e_vsi *vsi) |
| 4096 | { |
| 4097 | bool have_vlans; |
| 4098 | |
| 4099 | /* If we have a port VLAN, then the VSI cannot have any VLANs |
| 4100 | * configured, as all MAC/VLAN filters will be assigned to the PVID. |
| 4101 | */ |
| 4102 | if (vsi->info.pvid) |
| 4103 | return false; |
| 4104 | |
| 4105 | /* Since we don't have a PVID, we know that if the device is in VLAN |
| 4106 | * mode it must be because of a VLAN filter configured on this VSI. |
| 4107 | */ |
| 4108 | spin_lock_bh(&vsi->mac_filter_hash_lock); |
| 4109 | have_vlans = i40e_is_vsi_in_vlan(vsi); |
| 4110 | spin_unlock_bh(&vsi->mac_filter_hash_lock); |
| 4111 | |
| 4112 | return have_vlans; |
| 4113 | } |
| 4114 | |
| 4115 | /** |
| 4116 | * i40e_ndo_set_vf_port_vlan |
| 4117 | * @netdev: network interface device structure |
| 4118 | * @vf_id: VF identifier |
| 4119 | * @vlan_id: mac address |
| 4120 | * @qos: priority setting |
| 4121 | * @vlan_proto: vlan protocol |
| 4122 | * |
| 4123 | * program VF vlan id and/or qos |
| 4124 | **/ |
| 4125 | int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id, |
| 4126 | u16 vlan_id, u8 qos, __be16 vlan_proto) |
| 4127 | { |
| 4128 | u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT); |
| 4129 | struct i40e_netdev_priv *np = netdev_priv(netdev); |
| 4130 | bool allmulti = false, alluni = false; |
| 4131 | struct i40e_pf *pf = np->vsi->back; |
| 4132 | struct i40e_vsi *vsi; |
| 4133 | struct i40e_vf *vf; |
| 4134 | int ret = 0; |
| 4135 | |
| 4136 | if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { |
| 4137 | dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); |
| 4138 | return -EAGAIN; |
| 4139 | } |
| 4140 | |
| 4141 | /* validate the request */ |
| 4142 | ret = i40e_validate_vf(pf, vf_id); |
| 4143 | if (ret) |
| 4144 | goto error_pvid; |
| 4145 | |
| 4146 | if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) { |
| 4147 | dev_err(&pf->pdev->dev, "Invalid VF Parameters\n"); |
| 4148 | ret = -EINVAL; |
| 4149 | goto error_pvid; |
| 4150 | } |
| 4151 | |
| 4152 | if (vlan_proto != htons(ETH_P_8021Q)) { |
| 4153 | dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n"); |
| 4154 | ret = -EPROTONOSUPPORT; |
| 4155 | goto error_pvid; |
| 4156 | } |
| 4157 | |
| 4158 | vf = &pf->vf[vf_id]; |
| 4159 | vsi = pf->vsi[vf->lan_vsi_idx]; |
| 4160 | if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { |
| 4161 | dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", |
| 4162 | vf_id); |
| 4163 | ret = -EAGAIN; |
| 4164 | goto error_pvid; |
| 4165 | } |
| 4166 | |
| 4167 | if (le16_to_cpu(vsi->info.pvid) == vlanprio) |
| 4168 | /* duplicate request, so just return success */ |
| 4169 | goto error_pvid; |
| 4170 | |
| 4171 | if (i40e_vsi_has_vlans(vsi)) { |
| 4172 | dev_err(&pf->pdev->dev, |
| 4173 | "VF %d has already configured VLAN filters and the administrator is requesting a port VLAN override.\nPlease unload and reload the VF driver for this change to take effect.\n", |
| 4174 | vf_id); |
| 4175 | /* Administrator Error - knock the VF offline until he does |
| 4176 | * the right thing by reconfiguring his network correctly |
| 4177 | * and then reloading the VF driver. |
| 4178 | */ |
| 4179 | i40e_vc_disable_vf(vf); |
| 4180 | /* During reset the VF got a new VSI, so refresh the pointer. */ |
| 4181 | vsi = pf->vsi[vf->lan_vsi_idx]; |
| 4182 | } |
| 4183 | |
| 4184 | /* Locked once because multiple functions below iterate list */ |
| 4185 | spin_lock_bh(&vsi->mac_filter_hash_lock); |
| 4186 | |
| 4187 | /* Check for condition where there was already a port VLAN ID |
| 4188 | * filter set and now it is being deleted by setting it to zero. |
| 4189 | * Additionally check for the condition where there was a port |
| 4190 | * VLAN but now there is a new and different port VLAN being set. |
| 4191 | * Before deleting all the old VLAN filters we must add new ones |
| 4192 | * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our |
| 4193 | * MAC addresses deleted. |
| 4194 | */ |
| 4195 | if ((!(vlan_id || qos) || |
| 4196 | vlanprio != le16_to_cpu(vsi->info.pvid)) && |
| 4197 | vsi->info.pvid) { |
| 4198 | ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY); |
| 4199 | if (ret) { |
| 4200 | dev_info(&vsi->back->pdev->dev, |
| 4201 | "add VF VLAN failed, ret=%d aq_err=%d\n", ret, |
| 4202 | vsi->back->hw.aq.asq_last_status); |
| 4203 | spin_unlock_bh(&vsi->mac_filter_hash_lock); |
| 4204 | goto error_pvid; |
| 4205 | } |
| 4206 | } |
| 4207 | |
| 4208 | if (vsi->info.pvid) { |
| 4209 | /* remove all filters on the old VLAN */ |
| 4210 | i40e_rm_vlan_all_mac(vsi, (le16_to_cpu(vsi->info.pvid) & |
| 4211 | VLAN_VID_MASK)); |
| 4212 | } |
| 4213 | |
| 4214 | spin_unlock_bh(&vsi->mac_filter_hash_lock); |
| 4215 | |
| 4216 | /* disable promisc modes in case they were enabled */ |
| 4217 | ret = i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, |
| 4218 | allmulti, alluni); |
| 4219 | if (ret) { |
| 4220 | dev_err(&pf->pdev->dev, "Unable to config VF promiscuous mode\n"); |
| 4221 | goto error_pvid; |
| 4222 | } |
| 4223 | |
| 4224 | if (vlan_id || qos) |
| 4225 | ret = i40e_vsi_add_pvid(vsi, vlanprio); |
| 4226 | else |
| 4227 | i40e_vsi_remove_pvid(vsi); |
| 4228 | spin_lock_bh(&vsi->mac_filter_hash_lock); |
| 4229 | |
| 4230 | if (vlan_id) { |
| 4231 | dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n", |
| 4232 | vlan_id, qos, vf_id); |
| 4233 | |
| 4234 | /* add new VLAN filter for each MAC */ |
| 4235 | ret = i40e_add_vlan_all_mac(vsi, vlan_id); |
| 4236 | if (ret) { |
| 4237 | dev_info(&vsi->back->pdev->dev, |
| 4238 | "add VF VLAN failed, ret=%d aq_err=%d\n", ret, |
| 4239 | vsi->back->hw.aq.asq_last_status); |
| 4240 | spin_unlock_bh(&vsi->mac_filter_hash_lock); |
| 4241 | goto error_pvid; |
| 4242 | } |
| 4243 | |
| 4244 | /* remove the previously added non-VLAN MAC filters */ |
| 4245 | i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY); |
| 4246 | } |
| 4247 | |
| 4248 | spin_unlock_bh(&vsi->mac_filter_hash_lock); |
| 4249 | |
| 4250 | if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states)) |
| 4251 | alluni = true; |
| 4252 | |
| 4253 | if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states)) |
| 4254 | allmulti = true; |
| 4255 | |
| 4256 | /* Schedule the worker thread to take care of applying changes */ |
| 4257 | i40e_service_event_schedule(vsi->back); |
| 4258 | |
| 4259 | if (ret) { |
| 4260 | dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n"); |
| 4261 | goto error_pvid; |
| 4262 | } |
| 4263 | |
| 4264 | /* The Port VLAN needs to be saved across resets the same as the |
| 4265 | * default LAN MAC address. |
| 4266 | */ |
| 4267 | vf->port_vlan_id = le16_to_cpu(vsi->info.pvid); |
| 4268 | |
| 4269 | ret = i40e_config_vf_promiscuous_mode(vf, vsi->id, allmulti, alluni); |
| 4270 | if (ret) { |
| 4271 | dev_err(&pf->pdev->dev, "Unable to config vf promiscuous mode\n"); |
| 4272 | goto error_pvid; |
| 4273 | } |
| 4274 | |
| 4275 | ret = 0; |
| 4276 | |
| 4277 | error_pvid: |
| 4278 | clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); |
| 4279 | return ret; |
| 4280 | } |
| 4281 | |
| 4282 | /** |
| 4283 | * i40e_ndo_set_vf_bw |
| 4284 | * @netdev: network interface device structure |
| 4285 | * @vf_id: VF identifier |
| 4286 | * @min_tx_rate: Minimum Tx rate |
| 4287 | * @max_tx_rate: Maximum Tx rate |
| 4288 | * |
| 4289 | * configure VF Tx rate |
| 4290 | **/ |
| 4291 | int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate, |
| 4292 | int max_tx_rate) |
| 4293 | { |
| 4294 | struct i40e_netdev_priv *np = netdev_priv(netdev); |
| 4295 | struct i40e_pf *pf = np->vsi->back; |
| 4296 | struct i40e_vsi *vsi; |
| 4297 | struct i40e_vf *vf; |
| 4298 | int ret = 0; |
| 4299 | |
| 4300 | if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { |
| 4301 | dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); |
| 4302 | return -EAGAIN; |
| 4303 | } |
| 4304 | |
| 4305 | /* validate the request */ |
| 4306 | ret = i40e_validate_vf(pf, vf_id); |
| 4307 | if (ret) |
| 4308 | goto error; |
| 4309 | |
| 4310 | if (min_tx_rate) { |
| 4311 | dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n", |
| 4312 | min_tx_rate, vf_id); |
| 4313 | ret = -EINVAL; |
| 4314 | goto error; |
| 4315 | } |
| 4316 | |
| 4317 | vf = &pf->vf[vf_id]; |
| 4318 | vsi = pf->vsi[vf->lan_vsi_idx]; |
| 4319 | if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { |
| 4320 | dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", |
| 4321 | vf_id); |
| 4322 | ret = -EAGAIN; |
| 4323 | goto error; |
| 4324 | } |
| 4325 | |
| 4326 | ret = i40e_set_bw_limit(vsi, vsi->seid, max_tx_rate); |
| 4327 | if (ret) |
| 4328 | goto error; |
| 4329 | |
| 4330 | vf->tx_rate = max_tx_rate; |
| 4331 | error: |
| 4332 | clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); |
| 4333 | return ret; |
| 4334 | } |
| 4335 | |
| 4336 | /** |
| 4337 | * i40e_ndo_get_vf_config |
| 4338 | * @netdev: network interface device structure |
| 4339 | * @vf_id: VF identifier |
| 4340 | * @ivi: VF configuration structure |
| 4341 | * |
| 4342 | * return VF configuration |
| 4343 | **/ |
| 4344 | int i40e_ndo_get_vf_config(struct net_device *netdev, |
| 4345 | int vf_id, struct ifla_vf_info *ivi) |
| 4346 | { |
| 4347 | struct i40e_netdev_priv *np = netdev_priv(netdev); |
| 4348 | struct i40e_vsi *vsi = np->vsi; |
| 4349 | struct i40e_pf *pf = vsi->back; |
| 4350 | struct i40e_vf *vf; |
| 4351 | int ret = 0; |
| 4352 | |
| 4353 | if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { |
| 4354 | dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); |
| 4355 | return -EAGAIN; |
| 4356 | } |
| 4357 | |
| 4358 | /* validate the request */ |
| 4359 | ret = i40e_validate_vf(pf, vf_id); |
| 4360 | if (ret) |
| 4361 | goto error_param; |
| 4362 | |
| 4363 | vf = &pf->vf[vf_id]; |
| 4364 | /* first vsi is always the LAN vsi */ |
| 4365 | vsi = pf->vsi[vf->lan_vsi_idx]; |
| 4366 | if (!vsi) { |
| 4367 | ret = -ENOENT; |
| 4368 | goto error_param; |
| 4369 | } |
| 4370 | |
| 4371 | ivi->vf = vf_id; |
| 4372 | |
| 4373 | ether_addr_copy(ivi->mac, vf->default_lan_addr.addr); |
| 4374 | |
| 4375 | ivi->max_tx_rate = vf->tx_rate; |
| 4376 | ivi->min_tx_rate = 0; |
| 4377 | ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK; |
| 4378 | ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >> |
| 4379 | I40E_VLAN_PRIORITY_SHIFT; |
| 4380 | if (vf->link_forced == false) |
| 4381 | ivi->linkstate = IFLA_VF_LINK_STATE_AUTO; |
| 4382 | else if (vf->link_up == true) |
| 4383 | ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE; |
| 4384 | else |
| 4385 | ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE; |
| 4386 | ivi->spoofchk = vf->spoofchk; |
| 4387 | ivi->trusted = vf->trusted; |
| 4388 | ret = 0; |
| 4389 | |
| 4390 | error_param: |
| 4391 | clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); |
| 4392 | return ret; |
| 4393 | } |
| 4394 | |
| 4395 | /** |
| 4396 | * i40e_ndo_set_vf_link_state |
| 4397 | * @netdev: network interface device structure |
| 4398 | * @vf_id: VF identifier |
| 4399 | * @link: required link state |
| 4400 | * |
| 4401 | * Set the link state of a specified VF, regardless of physical link state |
| 4402 | **/ |
| 4403 | int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link) |
| 4404 | { |
| 4405 | struct i40e_netdev_priv *np = netdev_priv(netdev); |
| 4406 | struct i40e_pf *pf = np->vsi->back; |
| 4407 | struct virtchnl_pf_event pfe; |
| 4408 | struct i40e_hw *hw = &pf->hw; |
| 4409 | struct i40e_vf *vf; |
| 4410 | int abs_vf_id; |
| 4411 | int ret = 0; |
| 4412 | |
| 4413 | if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { |
| 4414 | dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); |
| 4415 | return -EAGAIN; |
| 4416 | } |
| 4417 | |
| 4418 | /* validate the request */ |
| 4419 | if (vf_id >= pf->num_alloc_vfs) { |
| 4420 | dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); |
| 4421 | ret = -EINVAL; |
| 4422 | goto error_out; |
| 4423 | } |
| 4424 | |
| 4425 | vf = &pf->vf[vf_id]; |
| 4426 | abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; |
| 4427 | |
| 4428 | pfe.event = VIRTCHNL_EVENT_LINK_CHANGE; |
| 4429 | pfe.severity = PF_EVENT_SEVERITY_INFO; |
| 4430 | |
| 4431 | switch (link) { |
| 4432 | case IFLA_VF_LINK_STATE_AUTO: |
| 4433 | vf->link_forced = false; |
| 4434 | pfe.event_data.link_event.link_status = |
| 4435 | pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP; |
| 4436 | pfe.event_data.link_event.link_speed = |
| 4437 | (enum virtchnl_link_speed) |
| 4438 | pf->hw.phy.link_info.link_speed; |
| 4439 | break; |
| 4440 | case IFLA_VF_LINK_STATE_ENABLE: |
| 4441 | vf->link_forced = true; |
| 4442 | vf->link_up = true; |
| 4443 | pfe.event_data.link_event.link_status = true; |
| 4444 | pfe.event_data.link_event.link_speed = VIRTCHNL_LINK_SPEED_40GB; |
| 4445 | break; |
| 4446 | case IFLA_VF_LINK_STATE_DISABLE: |
| 4447 | vf->link_forced = true; |
| 4448 | vf->link_up = false; |
| 4449 | pfe.event_data.link_event.link_status = false; |
| 4450 | pfe.event_data.link_event.link_speed = 0; |
| 4451 | break; |
| 4452 | default: |
| 4453 | ret = -EINVAL; |
| 4454 | goto error_out; |
| 4455 | } |
| 4456 | /* Notify the VF of its new link state */ |
| 4457 | i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT, |
| 4458 | 0, (u8 *)&pfe, sizeof(pfe), NULL); |
| 4459 | |
| 4460 | error_out: |
| 4461 | clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); |
| 4462 | return ret; |
| 4463 | } |
| 4464 | |
| 4465 | /** |
| 4466 | * i40e_ndo_set_vf_spoofchk |
| 4467 | * @netdev: network interface device structure |
| 4468 | * @vf_id: VF identifier |
| 4469 | * @enable: flag to enable or disable feature |
| 4470 | * |
| 4471 | * Enable or disable VF spoof checking |
| 4472 | **/ |
| 4473 | int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable) |
| 4474 | { |
| 4475 | struct i40e_netdev_priv *np = netdev_priv(netdev); |
| 4476 | struct i40e_vsi *vsi = np->vsi; |
| 4477 | struct i40e_pf *pf = vsi->back; |
| 4478 | struct i40e_vsi_context ctxt; |
| 4479 | struct i40e_hw *hw = &pf->hw; |
| 4480 | struct i40e_vf *vf; |
| 4481 | int ret = 0; |
| 4482 | |
| 4483 | if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { |
| 4484 | dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); |
| 4485 | return -EAGAIN; |
| 4486 | } |
| 4487 | |
| 4488 | /* validate the request */ |
| 4489 | if (vf_id >= pf->num_alloc_vfs) { |
| 4490 | dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); |
| 4491 | ret = -EINVAL; |
| 4492 | goto out; |
| 4493 | } |
| 4494 | |
| 4495 | vf = &(pf->vf[vf_id]); |
| 4496 | if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { |
| 4497 | dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n", |
| 4498 | vf_id); |
| 4499 | ret = -EAGAIN; |
| 4500 | goto out; |
| 4501 | } |
| 4502 | |
| 4503 | if (enable == vf->spoofchk) |
| 4504 | goto out; |
| 4505 | |
| 4506 | vf->spoofchk = enable; |
| 4507 | memset(&ctxt, 0, sizeof(ctxt)); |
| 4508 | ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid; |
| 4509 | ctxt.pf_num = pf->hw.pf_id; |
| 4510 | ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID); |
| 4511 | if (enable) |
| 4512 | ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK | |
| 4513 | I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK); |
| 4514 | ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL); |
| 4515 | if (ret) { |
| 4516 | dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n", |
| 4517 | ret); |
| 4518 | ret = -EIO; |
| 4519 | } |
| 4520 | out: |
| 4521 | clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); |
| 4522 | return ret; |
| 4523 | } |
| 4524 | |
| 4525 | /** |
| 4526 | * i40e_ndo_set_vf_trust |
| 4527 | * @netdev: network interface device structure of the pf |
| 4528 | * @vf_id: VF identifier |
| 4529 | * @setting: trust setting |
| 4530 | * |
| 4531 | * Enable or disable VF trust setting |
| 4532 | **/ |
| 4533 | int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting) |
| 4534 | { |
| 4535 | struct i40e_netdev_priv *np = netdev_priv(netdev); |
| 4536 | struct i40e_pf *pf = np->vsi->back; |
| 4537 | struct i40e_vf *vf; |
| 4538 | int ret = 0; |
| 4539 | |
| 4540 | if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) { |
| 4541 | dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n"); |
| 4542 | return -EAGAIN; |
| 4543 | } |
| 4544 | |
| 4545 | /* validate the request */ |
| 4546 | if (vf_id >= pf->num_alloc_vfs) { |
| 4547 | dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id); |
| 4548 | ret = -EINVAL; |
| 4549 | goto out; |
| 4550 | } |
| 4551 | |
| 4552 | if (pf->flags & I40E_FLAG_MFP_ENABLED) { |
| 4553 | dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n"); |
| 4554 | ret = -EINVAL; |
| 4555 | goto out; |
| 4556 | } |
| 4557 | |
| 4558 | vf = &pf->vf[vf_id]; |
| 4559 | |
| 4560 | if (setting == vf->trusted) |
| 4561 | goto out; |
| 4562 | |
| 4563 | vf->trusted = setting; |
| 4564 | i40e_vc_disable_vf(vf); |
| 4565 | dev_info(&pf->pdev->dev, "VF %u is now %strusted\n", |
| 4566 | vf_id, setting ? "" : "un"); |
| 4567 | |
| 4568 | if (vf->adq_enabled) { |
| 4569 | if (!vf->trusted) { |
| 4570 | dev_info(&pf->pdev->dev, |
| 4571 | "VF %u no longer Trusted, deleting all cloud filters\n", |
| 4572 | vf_id); |
| 4573 | i40e_del_all_cloud_filters(vf); |
| 4574 | } |
| 4575 | } |
| 4576 | |
| 4577 | out: |
| 4578 | clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state); |
| 4579 | return ret; |
| 4580 | } |
| 4581 | |
| 4582 | /** |
| 4583 | * i40e_get_vf_stats - populate some stats for the VF |
| 4584 | * @netdev: the netdev of the PF |
| 4585 | * @vf_id: the host OS identifier (0-127) |
| 4586 | * @vf_stats: pointer to the OS memory to be initialized |
| 4587 | */ |
| 4588 | int i40e_get_vf_stats(struct net_device *netdev, int vf_id, |
| 4589 | struct ifla_vf_stats *vf_stats) |
| 4590 | { |
| 4591 | struct i40e_netdev_priv *np = netdev_priv(netdev); |
| 4592 | struct i40e_pf *pf = np->vsi->back; |
| 4593 | struct i40e_eth_stats *stats; |
| 4594 | struct i40e_vsi *vsi; |
| 4595 | struct i40e_vf *vf; |
| 4596 | |
| 4597 | /* validate the request */ |
| 4598 | if (i40e_validate_vf(pf, vf_id)) |
| 4599 | return -EINVAL; |
| 4600 | |
| 4601 | vf = &pf->vf[vf_id]; |
| 4602 | if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) { |
| 4603 | dev_err(&pf->pdev->dev, "VF %d in reset. Try again.\n", vf_id); |
| 4604 | return -EBUSY; |
| 4605 | } |
| 4606 | |
| 4607 | vsi = pf->vsi[vf->lan_vsi_idx]; |
| 4608 | if (!vsi) |
| 4609 | return -EINVAL; |
| 4610 | |
| 4611 | i40e_update_eth_stats(vsi); |
| 4612 | stats = &vsi->eth_stats; |
| 4613 | |
| 4614 | memset(vf_stats, 0, sizeof(*vf_stats)); |
| 4615 | |
| 4616 | vf_stats->rx_packets = stats->rx_unicast + stats->rx_broadcast + |
| 4617 | stats->rx_multicast; |
| 4618 | vf_stats->tx_packets = stats->tx_unicast + stats->tx_broadcast + |
| 4619 | stats->tx_multicast; |
| 4620 | vf_stats->rx_bytes = stats->rx_bytes; |
| 4621 | vf_stats->tx_bytes = stats->tx_bytes; |
| 4622 | vf_stats->broadcast = stats->rx_broadcast; |
| 4623 | vf_stats->multicast = stats->rx_multicast; |
| 4624 | vf_stats->rx_dropped = stats->rx_discards; |
| 4625 | vf_stats->tx_dropped = stats->tx_discards; |
| 4626 | |
| 4627 | return 0; |
| 4628 | } |