drivers/net/ethernet/intel/i40e/i40e_virtchnl

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This source file includes following definitions.
i40e_vc_vf_broadcast
i40e_vc_notify_vf_link_state
i40e_vc_notify_link_state
i40e_vc_notify_reset
i40e_vc_notify_vf_reset
i40e_vc_disable_vf
i40e_vc_isvalid_vsi_id
i40e_vc_isvalid_queue_id
i40e_vc_isvalid_vector_id
i40e_vc_get_pf_queue_id
i40e_get_real_pf_qid
i40e_config_irq_link_list
i40e_release_iwarp_qvlist
i40e_config_iwarp_qvlist
i40e_config_vsi_tx_queue
i40e_config_vsi_rx_queue
i40e_alloc_vsi_res
i40e_map_pf_queues_to_vsi
i40e_map_pf_to_vf_queues
i40e_enable_vf_mappings
i40e_disable_vf_mappings
i40e_free_vf_res
i40e_alloc_vf_res
i40e_quiesce_vf_pci
i40e_config_vf_promiscuous_mode
i40e_trigger_vf_reset
i40e_cleanup_reset_vf
i40e_reset_vf
i40e_reset_all_vfs
i40e_free_vfs
i40e_alloc_vfs
i40e_pci_sriov_enable
i40e_pci_sriov_configure
i40e_vc_send_msg_to_vf
i40e_vc_send_resp_to_vf
i40e_vc_get_version_msg
i40e_del_qch
i40e_vc_get_vf_resources_msg
i40e_vc_reset_vf_msg
i40e_getnum_vf_vsi_vlan_filters
i40e_vc_config_promiscuous_mode_msg
i40e_vc_config_queues_msg
i40e_validate_queue_map
i40e_vc_config_irq_map_msg
i40e_ctrl_vf_tx_rings
i40e_ctrl_vf_rx_rings
i40e_vc_validate_vqs_bitmaps
i40e_vc_enable_queues_msg
i40e_vc_disable_queues_msg
i40e_vc_request_queues_msg
i40e_vc_get_stats_msg
i40e_check_vf_permission
i40e_vc_add_mac_addr_msg
i40e_vc_del_mac_addr_msg
i40e_vc_add_vlan_msg
i40e_vc_remove_vlan_msg
i40e_vc_iwarp_msg
i40e_vc_iwarp_qvmap_msg
i40e_vc_config_rss_key
i40e_vc_config_rss_lut
i40e_vc_get_rss_hena
i40e_vc_set_rss_hena
i40e_vc_enable_vlan_stripping
i40e_vc_disable_vlan_stripping
i40e_validate_cloud_filter
i40e_find_vsi_from_seid
i40e_del_all_cloud_filters
i40e_vc_del_cloud_filter
i40e_vc_add_cloud_filter
i40e_vc_add_qch_msg
i40e_vc_del_qch_msg
i40e_vc_process_vf_msg
i40e_vc_process_vflr_event
i40e_validate_vf
i40e_ndo_set_vf_mac
i40e_vsi_has_vlans
i40e_ndo_set_vf_port_vlan
i40e_ndo_set_vf_bw
i40e_ndo_get_vf_config
i40e_ndo_set_vf_link_state
i40e_ndo_set_vf_spoofchk
i40e_ndo_set_vf_trust
   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                 vf->num_mac = 0;
 959         }
 960 
 961         /* do the accounting and remove additional ADq VSI's */
 962         if (vf->adq_enabled && vf->ch[0].vsi_idx) {
 963                 for (j = 0; j < vf->num_tc; j++) {
 964                         /* At this point VSI0 is already released so don't
 965                          * release it again and only clear their values in
 966                          * structure variables
 967                          */
 968                         if (j)
 969                                 i40e_vsi_release(pf->vsi[vf->ch[j].vsi_idx]);
 970                         vf->ch[j].vsi_idx = 0;
 971                         vf->ch[j].vsi_id = 0;
 972                 }
 973         }
 974         msix_vf = pf->hw.func_caps.num_msix_vectors_vf;
 975 
 976         /* disable interrupts so the VF starts in a known state */
 977         for (i = 0; i < msix_vf; i++) {
 978                 /* format is same for both registers */
 979                 if (0 == i)
 980                         reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id);
 981                 else
 982                         reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) *
 983                                                       (vf->vf_id))
 984                                                      + (i - 1));
 985                 wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
 986                 i40e_flush(hw);
 987         }
 988 
 989         /* clear the irq settings */
 990         for (i = 0; i < msix_vf; i++) {
 991                 /* format is same for both registers */
 992                 if (0 == i)
 993                         reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
 994                 else
 995                         reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) *
 996                                                       (vf->vf_id))
 997                                                      + (i - 1));
 998                 reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK |
 999                        I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK);
1000                 wr32(hw, reg_idx, reg);
1001                 i40e_flush(hw);
1002         }
1003         /* reset some of the state variables keeping track of the resources */
1004         vf->num_queue_pairs = 0;
1005         clear_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states);
1006         clear_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states);
1007 }
1008 
1009 /**
1010  * i40e_alloc_vf_res
1011  * @vf: pointer to the VF info
1012  *
1013  * allocate VF resources
1014  **/
1015 static int i40e_alloc_vf_res(struct i40e_vf *vf)
1016 {
1017         struct i40e_pf *pf = vf->pf;
1018         int total_queue_pairs = 0;
1019         int ret, idx;
1020 
1021         if (vf->num_req_queues &&
1022             vf->num_req_queues <= pf->queues_left + I40E_DEFAULT_QUEUES_PER_VF)
1023                 pf->num_vf_qps = vf->num_req_queues;
1024         else
1025                 pf->num_vf_qps = I40E_DEFAULT_QUEUES_PER_VF;
1026 
1027         /* allocate hw vsi context & associated resources */
1028         ret = i40e_alloc_vsi_res(vf, 0);
1029         if (ret)
1030                 goto error_alloc;
1031         total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
1032 
1033         /* allocate additional VSIs based on tc information for ADq */
1034         if (vf->adq_enabled) {
1035                 if (pf->queues_left >=
1036                     (I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF)) {
1037                         /* TC 0 always belongs to VF VSI */
1038                         for (idx = 1; idx < vf->num_tc; idx++) {
1039                                 ret = i40e_alloc_vsi_res(vf, idx);
1040                                 if (ret)
1041                                         goto error_alloc;
1042                         }
1043                         /* send correct number of queues */
1044                         total_queue_pairs = I40E_MAX_VF_QUEUES;
1045                 } else {
1046                         dev_info(&pf->pdev->dev, "VF %d: Not enough queues to allocate, disabling ADq\n",
1047                                  vf->vf_id);
1048                         vf->adq_enabled = false;
1049                 }
1050         }
1051 
1052         /* We account for each VF to get a default number of queue pairs.  If
1053          * the VF has now requested more, we need to account for that to make
1054          * certain we never request more queues than we actually have left in
1055          * HW.
1056          */
1057         if (total_queue_pairs > I40E_DEFAULT_QUEUES_PER_VF)
1058                 pf->queues_left -=
1059                         total_queue_pairs - I40E_DEFAULT_QUEUES_PER_VF;
1060 
1061         if (vf->trusted)
1062                 set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
1063         else
1064                 clear_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);
1065 
1066         /* store the total qps number for the runtime
1067          * VF req validation
1068          */
1069         vf->num_queue_pairs = total_queue_pairs;
1070 
1071         /* VF is now completely initialized */
1072         set_bit(I40E_VF_STATE_INIT, &vf->vf_states);
1073 
1074 error_alloc:
1075         if (ret)
1076                 i40e_free_vf_res(vf);
1077 
1078         return ret;
1079 }
1080 
1081 #define VF_DEVICE_STATUS 0xAA
1082 #define VF_TRANS_PENDING_MASK 0x20
1083 /**
1084  * i40e_quiesce_vf_pci
1085  * @vf: pointer to the VF structure
1086  *
1087  * Wait for VF PCI transactions to be cleared after reset. Returns -EIO
1088  * if the transactions never clear.
1089  **/
1090 static int i40e_quiesce_vf_pci(struct i40e_vf *vf)
1091 {
1092         struct i40e_pf *pf = vf->pf;
1093         struct i40e_hw *hw = &pf->hw;
1094         int vf_abs_id, i;
1095         u32 reg;
1096 
1097         vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;
1098 
1099         wr32(hw, I40E_PF_PCI_CIAA,
1100              VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT));
1101         for (i = 0; i < 100; i++) {
1102                 reg = rd32(hw, I40E_PF_PCI_CIAD);
1103                 if ((reg & VF_TRANS_PENDING_MASK) == 0)
1104                         return 0;
1105                 udelay(1);
1106         }
1107         return -EIO;
1108 }
1109 
1110 static inline int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi);
1111 
1112 /**
1113  * i40e_config_vf_promiscuous_mode
1114  * @vf: pointer to the VF info
1115  * @vsi_id: VSI id
1116  * @allmulti: set MAC L2 layer multicast promiscuous enable/disable
1117  * @alluni: set MAC L2 layer unicast promiscuous enable/disable
1118  *
1119  * Called from the VF to configure the promiscuous mode of
1120  * VF vsis and from the VF reset path to reset promiscuous mode.
1121  **/
1122 static i40e_status i40e_config_vf_promiscuous_mode(struct i40e_vf *vf,
1123                                                    u16 vsi_id,
1124                                                    bool allmulti,
1125                                                    bool alluni)
1126 {
1127         struct i40e_pf *pf = vf->pf;
1128         struct i40e_hw *hw = &pf->hw;
1129         struct i40e_mac_filter *f;
1130         i40e_status aq_ret = 0;
1131         struct i40e_vsi *vsi;
1132         int bkt;
1133 
1134         vsi = i40e_find_vsi_from_id(pf, vsi_id);
1135         if (!i40e_vc_isvalid_vsi_id(vf, vsi_id) || !vsi)
1136                 return I40E_ERR_PARAM;
1137 
1138         if (vf->port_vlan_id) {
1139                 aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw, vsi->seid,
1140                                                             allmulti,
1141                                                             vf->port_vlan_id,
1142                                                             NULL);
1143                 if (aq_ret) {
1144                         int aq_err = pf->hw.aq.asq_last_status;
1145 
1146                         dev_err(&pf->pdev->dev,
1147                                 "VF %d failed to set multicast promiscuous mode err %s aq_err %s\n",
1148                                 vf->vf_id,
1149                                 i40e_stat_str(&pf->hw, aq_ret),
1150                                 i40e_aq_str(&pf->hw, aq_err));
1151                         return aq_ret;
1152                 }
1153 
1154                 aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw, vsi->seid,
1155                                                             alluni,
1156                                                             vf->port_vlan_id,
1157                                                             NULL);
1158                 if (aq_ret) {
1159                         int aq_err = pf->hw.aq.asq_last_status;
1160 
1161                         dev_err(&pf->pdev->dev,
1162                                 "VF %d failed to set unicast promiscuous mode err %s aq_err %s\n",
1163                                 vf->vf_id,
1164                                 i40e_stat_str(&pf->hw, aq_ret),
1165                                 i40e_aq_str(&pf->hw, aq_err));
1166                 }
1167                 return aq_ret;
1168         } else if (i40e_getnum_vf_vsi_vlan_filters(vsi)) {
1169                 hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
1170                         if (f->vlan < 0 || f->vlan > I40E_MAX_VLANID)
1171                                 continue;
1172                         aq_ret = i40e_aq_set_vsi_mc_promisc_on_vlan(hw,
1173                                                                     vsi->seid,
1174                                                                     allmulti,
1175                                                                     f->vlan,
1176                                                                     NULL);
1177                         if (aq_ret) {
1178                                 int aq_err = pf->hw.aq.asq_last_status;
1179 
1180                                 dev_err(&pf->pdev->dev,
1181                                         "Could not add VLAN %d to multicast promiscuous domain err %s aq_err %s\n",
1182                                         f->vlan,
1183                                         i40e_stat_str(&pf->hw, aq_ret),
1184                                         i40e_aq_str(&pf->hw, aq_err));
1185                         }
1186 
1187                         aq_ret = i40e_aq_set_vsi_uc_promisc_on_vlan(hw,
1188                                                                     vsi->seid,
1189                                                                     alluni,
1190                                                                     f->vlan,
1191                                                                     NULL);
1192                         if (aq_ret) {
1193                                 int aq_err = pf->hw.aq.asq_last_status;
1194 
1195                                 dev_err(&pf->pdev->dev,
1196                                         "Could not add VLAN %d to Unicast promiscuous domain err %s aq_err %s\n",
1197                                         f->vlan,
1198                                         i40e_stat_str(&pf->hw, aq_ret),
1199                                         i40e_aq_str(&pf->hw, aq_err));
1200                         }
1201                 }
1202                 return aq_ret;
1203         }
1204         aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, vsi->seid, allmulti,
1205                                                        NULL);
1206         if (aq_ret) {
1207                 int aq_err = pf->hw.aq.asq_last_status;
1208 
1209                 dev_err(&pf->pdev->dev,
1210                         "VF %d failed to set multicast promiscuous mode err %s aq_err %s\n",
1211                         vf->vf_id,
1212                         i40e_stat_str(&pf->hw, aq_ret),
1213                         i40e_aq_str(&pf->hw, aq_err));
1214                 return aq_ret;
1215         }
1216 
1217         aq_ret = i40e_aq_set_vsi_unicast_promiscuous(hw, vsi->seid, alluni,
1218                                                      NULL, true);
1219         if (aq_ret) {
1220                 int aq_err = pf->hw.aq.asq_last_status;
1221 
1222                 dev_err(&pf->pdev->dev,
1223                         "VF %d failed to set unicast promiscuous mode err %s aq_err %s\n",
1224                         vf->vf_id,
1225                         i40e_stat_str(&pf->hw, aq_ret),
1226                         i40e_aq_str(&pf->hw, aq_err));
1227         }
1228 
1229         return aq_ret;
1230 }
1231 
1232 /**
1233  * i40e_trigger_vf_reset
1234  * @vf: pointer to the VF structure
1235  * @flr: VFLR was issued or not
1236  *
1237  * Trigger hardware to start a reset for a particular VF. Expects the caller
1238  * to wait the proper amount of time to allow hardware to reset the VF before
1239  * it cleans up and restores VF functionality.
1240  **/
1241 static void i40e_trigger_vf_reset(struct i40e_vf *vf, bool flr)
1242 {
1243         struct i40e_pf *pf = vf->pf;
1244         struct i40e_hw *hw = &pf->hw;
1245         u32 reg, reg_idx, bit_idx;
1246 
1247         /* warn the VF */
1248         clear_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
1249 
1250         /* Disable VF's configuration API during reset. The flag is re-enabled
1251          * in i40e_alloc_vf_res(), when it's safe again to access VF's VSI.
1252          * It's normally disabled in i40e_free_vf_res(), but it's safer
1253          * to do it earlier to give some time to finish to any VF config
1254          * functions that may still be running at this point.
1255          */
1256         clear_bit(I40E_VF_STATE_INIT, &vf->vf_states);
1257 
1258         /* In the case of a VFLR, the HW has already reset the VF and we
1259          * just need to clean up, so don't hit the VFRTRIG register.
1260          */
1261         if (!flr) {
1262                 /* reset VF using VPGEN_VFRTRIG reg */
1263                 reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
1264                 reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
1265                 wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
1266                 i40e_flush(hw);
1267         }
1268         /* clear the VFLR bit in GLGEN_VFLRSTAT */
1269         reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32;
1270         bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32;
1271         wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
1272         i40e_flush(hw);
1273 
1274         if (i40e_quiesce_vf_pci(vf))
1275                 dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",
1276                         vf->vf_id);
1277 }
1278 
1279 /**
1280  * i40e_cleanup_reset_vf
1281  * @vf: pointer to the VF structure
1282  *
1283  * Cleanup a VF after the hardware reset is finished. Expects the caller to
1284  * have verified whether the reset is finished properly, and ensure the
1285  * minimum amount of wait time has passed.
1286  **/
1287 static void i40e_cleanup_reset_vf(struct i40e_vf *vf)
1288 {
1289         struct i40e_pf *pf = vf->pf;
1290         struct i40e_hw *hw = &pf->hw;
1291         u32 reg;
1292 
1293         /* disable promisc modes in case they were enabled */
1294         i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id, false, false);
1295 
1296         /* free VF resources to begin resetting the VSI state */
1297         i40e_free_vf_res(vf);
1298 
1299         /* Enable hardware by clearing the reset bit in the VPGEN_VFRTRIG reg.
1300          * By doing this we allow HW to access VF memory at any point. If we
1301          * did it any sooner, HW could access memory while it was being freed
1302          * in i40e_free_vf_res(), causing an IOMMU fault.
1303          *
1304          * On the other hand, this needs to be done ASAP, because the VF driver
1305          * is waiting for this to happen and may report a timeout. It's
1306          * harmless, but it gets logged into Guest OS kernel log, so best avoid
1307          * it.
1308          */
1309         reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
1310         reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
1311         wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
1312 
1313         /* reallocate VF resources to finish resetting the VSI state */
1314         if (!i40e_alloc_vf_res(vf)) {
1315                 int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1316                 i40e_enable_vf_mappings(vf);
1317                 set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
1318                 clear_bit(I40E_VF_STATE_DISABLED, &vf->vf_states);
1319                 /* Do not notify the client during VF init */
1320                 if (!test_and_clear_bit(I40E_VF_STATE_PRE_ENABLE,
1321                                         &vf->vf_states))
1322                         i40e_notify_client_of_vf_reset(pf, abs_vf_id);
1323                 vf->num_vlan = 0;
1324         }
1325 
1326         /* Tell the VF driver the reset is done. This needs to be done only
1327          * after VF has been fully initialized, because the VF driver may
1328          * request resources immediately after setting this flag.
1329          */
1330         wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), VIRTCHNL_VFR_VFACTIVE);
1331 }
1332 
1333 /**
1334  * i40e_reset_vf
1335  * @vf: pointer to the VF structure
1336  * @flr: VFLR was issued or not
1337  *
1338  * Returns true if the VF is reset, false otherwise.
1339  **/
1340 bool i40e_reset_vf(struct i40e_vf *vf, bool flr)
1341 {
1342         struct i40e_pf *pf = vf->pf;
1343         struct i40e_hw *hw = &pf->hw;
1344         bool rsd = false;
1345         u32 reg;
1346         int i;
1347 
1348         /* If the VFs have been disabled, this means something else is
1349          * resetting the VF, so we shouldn't continue.
1350          */
1351         if (test_and_set_bit(__I40E_VF_DISABLE, pf->state))
1352                 return false;
1353 
1354         i40e_trigger_vf_reset(vf, flr);
1355 
1356         /* poll VPGEN_VFRSTAT reg to make sure
1357          * that reset is complete
1358          */
1359         for (i = 0; i < 10; i++) {
1360                 /* VF reset requires driver to first reset the VF and then
1361                  * poll the status register to make sure that the reset
1362                  * completed successfully. Due to internal HW FIFO flushes,
1363                  * we must wait 10ms before the register will be valid.
1364                  */
1365                 usleep_range(10000, 20000);
1366                 reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
1367                 if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
1368                         rsd = true;
1369                         break;
1370                 }
1371         }
1372 
1373         if (flr)
1374                 usleep_range(10000, 20000);
1375 
1376         if (!rsd)
1377                 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
1378                         vf->vf_id);
1379         usleep_range(10000, 20000);
1380 
1381         /* On initial reset, we don't have any queues to disable */
1382         if (vf->lan_vsi_idx != 0)
1383                 i40e_vsi_stop_rings(pf->vsi[vf->lan_vsi_idx]);
1384 
1385         i40e_cleanup_reset_vf(vf);
1386 
1387         i40e_flush(hw);
1388         clear_bit(__I40E_VF_DISABLE, pf->state);
1389 
1390         return true;
1391 }
1392 
1393 /**
1394  * i40e_reset_all_vfs
1395  * @pf: pointer to the PF structure
1396  * @flr: VFLR was issued or not
1397  *
1398  * Reset all allocated VFs in one go. First, tell the hardware to reset each
1399  * VF, then do all the waiting in one chunk, and finally finish restoring each
1400  * VF after the wait. This is useful during PF routines which need to reset
1401  * all VFs, as otherwise it must perform these resets in a serialized fashion.
1402  *
1403  * Returns true if any VFs were reset, and false otherwise.
1404  **/
1405 bool i40e_reset_all_vfs(struct i40e_pf *pf, bool flr)
1406 {
1407         struct i40e_hw *hw = &pf->hw;
1408         struct i40e_vf *vf;
1409         int i, v;
1410         u32 reg;
1411 
1412         /* If we don't have any VFs, then there is nothing to reset */
1413         if (!pf->num_alloc_vfs)
1414                 return false;
1415 
1416         /* If VFs have been disabled, there is no need to reset */
1417         if (test_and_set_bit(__I40E_VF_DISABLE, pf->state))
1418                 return false;
1419 
1420         /* Begin reset on all VFs at once */
1421         for (v = 0; v < pf->num_alloc_vfs; v++)
1422                 i40e_trigger_vf_reset(&pf->vf[v], flr);
1423 
1424         /* HW requires some time to make sure it can flush the FIFO for a VF
1425          * when it resets it. Poll the VPGEN_VFRSTAT register for each VF in
1426          * sequence to make sure that it has completed. We'll keep track of
1427          * the VFs using a simple iterator that increments once that VF has
1428          * finished resetting.
1429          */
1430         for (i = 0, v = 0; i < 10 && v < pf->num_alloc_vfs; i++) {
1431                 usleep_range(10000, 20000);
1432 
1433                 /* Check each VF in sequence, beginning with the VF to fail
1434                  * the previous check.
1435                  */
1436                 while (v < pf->num_alloc_vfs) {
1437                         vf = &pf->vf[v];
1438                         reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
1439                         if (!(reg & I40E_VPGEN_VFRSTAT_VFRD_MASK))
1440                                 break;
1441 
1442                         /* If the current VF has finished resetting, move on
1443                          * to the next VF in sequence.
1444                          */
1445                         v++;
1446                 }
1447         }
1448 
1449         if (flr)
1450                 usleep_range(10000, 20000);
1451 
1452         /* Display a warning if at least one VF didn't manage to reset in
1453          * time, but continue on with the operation.
1454          */
1455         if (v < pf->num_alloc_vfs)
1456                 dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
1457                         pf->vf[v].vf_id);
1458         usleep_range(10000, 20000);
1459 
1460         /* Begin disabling all the rings associated with VFs, but do not wait
1461          * between each VF.
1462          */
1463         for (v = 0; v < pf->num_alloc_vfs; v++) {
1464                 /* On initial reset, we don't have any queues to disable */
1465                 if (pf->vf[v].lan_vsi_idx == 0)
1466                         continue;
1467 
1468                 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[v].lan_vsi_idx]);
1469         }
1470 
1471         /* Now that we've notified HW to disable all of the VF rings, wait
1472          * until they finish.
1473          */
1474         for (v = 0; v < pf->num_alloc_vfs; v++) {
1475                 /* On initial reset, we don't have any queues to disable */
1476                 if (pf->vf[v].lan_vsi_idx == 0)
1477                         continue;
1478 
1479                 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[v].lan_vsi_idx]);
1480         }
1481 
1482         /* Hw may need up to 50ms to finish disabling the RX queues. We
1483          * minimize the wait by delaying only once for all VFs.
1484          */
1485         mdelay(50);
1486 
1487         /* Finish the reset on each VF */
1488         for (v = 0; v < pf->num_alloc_vfs; v++)
1489                 i40e_cleanup_reset_vf(&pf->vf[v]);
1490 
1491         i40e_flush(hw);
1492         clear_bit(__I40E_VF_DISABLE, pf->state);
1493 
1494         return true;
1495 }
1496 
1497 /**
1498  * i40e_free_vfs
1499  * @pf: pointer to the PF structure
1500  *
1501  * free VF resources
1502  **/
1503 void i40e_free_vfs(struct i40e_pf *pf)
1504 {
1505         struct i40e_hw *hw = &pf->hw;
1506         u32 reg_idx, bit_idx;
1507         int i, tmp, vf_id;
1508 
1509         if (!pf->vf)
1510                 return;
1511         while (test_and_set_bit(__I40E_VF_DISABLE, pf->state))
1512                 usleep_range(1000, 2000);
1513 
1514         i40e_notify_client_of_vf_enable(pf, 0);
1515 
1516         /* Amortize wait time by stopping all VFs at the same time */
1517         for (i = 0; i < pf->num_alloc_vfs; i++) {
1518                 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1519                         continue;
1520 
1521                 i40e_vsi_stop_rings_no_wait(pf->vsi[pf->vf[i].lan_vsi_idx]);
1522         }
1523 
1524         for (i = 0; i < pf->num_alloc_vfs; i++) {
1525                 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1526                         continue;
1527 
1528                 i40e_vsi_wait_queues_disabled(pf->vsi[pf->vf[i].lan_vsi_idx]);
1529         }
1530 
1531         /* Disable IOV before freeing resources. This lets any VF drivers
1532          * running in the host get themselves cleaned up before we yank
1533          * the carpet out from underneath their feet.
1534          */
1535         if (!pci_vfs_assigned(pf->pdev))
1536                 pci_disable_sriov(pf->pdev);
1537         else
1538                 dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n");
1539 
1540         /* free up VF resources */
1541         tmp = pf->num_alloc_vfs;
1542         pf->num_alloc_vfs = 0;
1543         for (i = 0; i < tmp; i++) {
1544                 if (test_bit(I40E_VF_STATE_INIT, &pf->vf[i].vf_states))
1545                         i40e_free_vf_res(&pf->vf[i]);
1546                 /* disable qp mappings */
1547                 i40e_disable_vf_mappings(&pf->vf[i]);
1548         }
1549 
1550         kfree(pf->vf);
1551         pf->vf = NULL;
1552 
1553         /* This check is for when the driver is unloaded while VFs are
1554          * assigned. Setting the number of VFs to 0 through sysfs is caught
1555          * before this function ever gets called.
1556          */
1557         if (!pci_vfs_assigned(pf->pdev)) {
1558                 /* Acknowledge VFLR for all VFS. Without this, VFs will fail to
1559                  * work correctly when SR-IOV gets re-enabled.
1560                  */
1561                 for (vf_id = 0; vf_id < tmp; vf_id++) {
1562                         reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
1563                         bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
1564                         wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
1565                 }
1566         }
1567         clear_bit(__I40E_VF_DISABLE, pf->state);
1568 }
1569 
1570 #ifdef CONFIG_PCI_IOV
1571 /**
1572  * i40e_alloc_vfs
1573  * @pf: pointer to the PF structure
1574  * @num_alloc_vfs: number of VFs to allocate
1575  *
1576  * allocate VF resources
1577  **/
1578 int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
1579 {
1580         struct i40e_vf *vfs;
1581         int i, ret = 0;
1582 
1583         /* Disable interrupt 0 so we don't try to handle the VFLR. */
1584         i40e_irq_dynamic_disable_icr0(pf);
1585 
1586         /* Check to see if we're just allocating resources for extant VFs */
1587         if (pci_num_vf(pf->pdev) != num_alloc_vfs) {
1588                 ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
1589                 if (ret) {
1590                         pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1591                         pf->num_alloc_vfs = 0;
1592                         goto err_iov;
1593                 }
1594         }
1595         /* allocate memory */
1596         vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL);
1597         if (!vfs) {
1598                 ret = -ENOMEM;
1599                 goto err_alloc;
1600         }
1601         pf->vf = vfs;
1602 
1603         /* apply default profile */
1604         for (i = 0; i < num_alloc_vfs; i++) {
1605                 vfs[i].pf = pf;
1606                 vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;
1607                 vfs[i].vf_id = i;
1608 
1609                 /* assign default capabilities */
1610                 set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);
1611                 vfs[i].spoofchk = true;
1612 
1613                 set_bit(I40E_VF_STATE_PRE_ENABLE, &vfs[i].vf_states);
1614 
1615         }
1616         pf->num_alloc_vfs = num_alloc_vfs;
1617 
1618         /* VF resources get allocated during reset */
1619         i40e_reset_all_vfs(pf, false);
1620 
1621         i40e_notify_client_of_vf_enable(pf, num_alloc_vfs);
1622 
1623 err_alloc:
1624         if (ret)
1625                 i40e_free_vfs(pf);
1626 err_iov:
1627         /* Re-enable interrupt 0. */
1628         i40e_irq_dynamic_enable_icr0(pf);
1629         return ret;
1630 }
1631 
1632 #endif
1633 /**
1634  * i40e_pci_sriov_enable
1635  * @pdev: pointer to a pci_dev structure
1636  * @num_vfs: number of VFs to allocate
1637  *
1638  * Enable or change the number of VFs
1639  **/
1640 static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
1641 {
1642 #ifdef CONFIG_PCI_IOV
1643         struct i40e_pf *pf = pci_get_drvdata(pdev);
1644         int pre_existing_vfs = pci_num_vf(pdev);
1645         int err = 0;
1646 
1647         if (test_bit(__I40E_TESTING, pf->state)) {
1648                 dev_warn(&pdev->dev,
1649                          "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n");
1650                 err = -EPERM;
1651                 goto err_out;
1652         }
1653 
1654         if (pre_existing_vfs && pre_existing_vfs != num_vfs)
1655                 i40e_free_vfs(pf);
1656         else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
1657                 goto out;
1658 
1659         if (num_vfs > pf->num_req_vfs) {
1660                 dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n",
1661                          num_vfs, pf->num_req_vfs);
1662                 err = -EPERM;
1663                 goto err_out;
1664         }
1665 
1666         dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
1667         err = i40e_alloc_vfs(pf, num_vfs);
1668         if (err) {
1669                 dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
1670                 goto err_out;
1671         }
1672 
1673 out:
1674         return num_vfs;
1675 
1676 err_out:
1677         return err;
1678 #endif
1679         return 0;
1680 }
1681 
1682 /**
1683  * i40e_pci_sriov_configure
1684  * @pdev: pointer to a pci_dev structure
1685  * @num_vfs: number of VFs to allocate
1686  *
1687  * Enable or change the number of VFs. Called when the user updates the number
1688  * of VFs in sysfs.
1689  **/
1690 int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
1691 {
1692         struct i40e_pf *pf = pci_get_drvdata(pdev);
1693         int ret = 0;
1694 
1695         if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
1696                 dev_warn(&pdev->dev, "Unable to configure VFs, other operation is pending.\n");
1697                 return -EAGAIN;
1698         }
1699 
1700         if (num_vfs) {
1701                 if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
1702                         pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
1703                         i40e_do_reset_safe(pf, I40E_PF_RESET_FLAG);
1704                 }
1705                 ret = i40e_pci_sriov_enable(pdev, num_vfs);
1706                 goto sriov_configure_out;
1707         }
1708 
1709         if (!pci_vfs_assigned(pf->pdev)) {
1710                 i40e_free_vfs(pf);
1711                 pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
1712                 i40e_do_reset_safe(pf, I40E_PF_RESET_FLAG);
1713         } else {
1714                 dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
1715                 ret = -EINVAL;
1716                 goto sriov_configure_out;
1717         }
1718 sriov_configure_out:
1719         clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
1720         return ret;
1721 }
1722 
1723 /***********************virtual channel routines******************/
1724 
1725 /**
1726  * i40e_vc_send_msg_to_vf
1727  * @vf: pointer to the VF info
1728  * @v_opcode: virtual channel opcode
1729  * @v_retval: virtual channel return value
1730  * @msg: pointer to the msg buffer
1731  * @msglen: msg length
1732  *
1733  * send msg to VF
1734  **/
1735 static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
1736                                   u32 v_retval, u8 *msg, u16 msglen)
1737 {
1738         struct i40e_pf *pf;
1739         struct i40e_hw *hw;
1740         int abs_vf_id;
1741         i40e_status aq_ret;
1742 
1743         /* validate the request */
1744         if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
1745                 return -EINVAL;
1746 
1747         pf = vf->pf;
1748         hw = &pf->hw;
1749         abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
1750 
1751         /* single place to detect unsuccessful return values */
1752         if (v_retval) {
1753                 vf->num_invalid_msgs++;
1754                 dev_info(&pf->pdev->dev, "VF %d failed opcode %d, retval: %d\n",
1755                          vf->vf_id, v_opcode, v_retval);
1756                 if (vf->num_invalid_msgs >
1757                     I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) {
1758                         dev_err(&pf->pdev->dev,
1759                                 "Number of invalid messages exceeded for VF %d\n",
1760                                 vf->vf_id);
1761                         dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n");
1762                         set_bit(I40E_VF_STATE_DISABLED, &vf->vf_states);
1763                 }
1764         } else {
1765                 vf->num_valid_msgs++;
1766                 /* reset the invalid counter, if a valid message is received. */
1767                 vf->num_invalid_msgs = 0;
1768         }
1769 
1770         aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id,  v_opcode, v_retval,
1771                                         msg, msglen, NULL);
1772         if (aq_ret) {
1773                 dev_info(&pf->pdev->dev,
1774                          "Unable to send the message to VF %d aq_err %d\n",
1775                          vf->vf_id, pf->hw.aq.asq_last_status);
1776                 return -EIO;
1777         }
1778 
1779         return 0;
1780 }
1781 
1782 /**
1783  * i40e_vc_send_resp_to_vf
1784  * @vf: pointer to the VF info
1785  * @opcode: operation code
1786  * @retval: return value
1787  *
1788  * send resp msg to VF
1789  **/
1790 static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
1791                                    enum virtchnl_ops opcode,
1792                                    i40e_status retval)
1793 {
1794         return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
1795 }
1796 
1797 /**
1798  * i40e_vc_get_version_msg
1799  * @vf: pointer to the VF info
1800  * @msg: pointer to the msg buffer
1801  *
1802  * called from the VF to request the API version used by the PF
1803  **/
1804 static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg)
1805 {
1806         struct virtchnl_version_info info = {
1807                 VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR
1808         };
1809 
1810         vf->vf_ver = *(struct virtchnl_version_info *)msg;
1811         /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */
1812         if (VF_IS_V10(&vf->vf_ver))
1813                 info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS;
1814         return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION,
1815                                       I40E_SUCCESS, (u8 *)&info,
1816                                       sizeof(struct virtchnl_version_info));
1817 }
1818 
1819 /**
1820  * i40e_del_qch - delete all the additional VSIs created as a part of ADq
1821  * @vf: pointer to VF structure
1822  **/
1823 static void i40e_del_qch(struct i40e_vf *vf)
1824 {
1825         struct i40e_pf *pf = vf->pf;
1826         int i;
1827 
1828         /* first element in the array belongs to primary VF VSI and we shouldn't
1829          * delete it. We should however delete the rest of the VSIs created
1830          */
1831         for (i = 1; i < vf->num_tc; i++) {
1832                 if (vf->ch[i].vsi_idx) {
1833                         i40e_vsi_release(pf->vsi[vf->ch[i].vsi_idx]);
1834                         vf->ch[i].vsi_idx = 0;
1835                         vf->ch[i].vsi_id = 0;
1836                 }
1837         }
1838 }
1839 
1840 /**
1841  * i40e_vc_get_vf_resources_msg
1842  * @vf: pointer to the VF info
1843  * @msg: pointer to the msg buffer
1844  *
1845  * called from the VF to request its resources
1846  **/
1847 static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
1848 {
1849         struct virtchnl_vf_resource *vfres = NULL;
1850         struct i40e_pf *pf = vf->pf;
1851         i40e_status aq_ret = 0;
1852         struct i40e_vsi *vsi;
1853         int num_vsis = 1;
1854         size_t len = 0;
1855         int ret;
1856 
1857         if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
1858                 aq_ret = I40E_ERR_PARAM;
1859                 goto err;
1860         }
1861 
1862         len = struct_size(vfres, vsi_res, num_vsis);
1863         vfres = kzalloc(len, GFP_KERNEL);
1864         if (!vfres) {
1865                 aq_ret = I40E_ERR_NO_MEMORY;
1866                 len = 0;
1867                 goto err;
1868         }
1869         if (VF_IS_V11(&vf->vf_ver))
1870                 vf->driver_caps = *(u32 *)msg;
1871         else
1872                 vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 |
1873                                   VIRTCHNL_VF_OFFLOAD_RSS_REG |
1874                                   VIRTCHNL_VF_OFFLOAD_VLAN;
1875 
1876         vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2;
1877         vsi = pf->vsi[vf->lan_vsi_idx];
1878         if (!vsi->info.pvid)
1879                 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN;
1880 
1881         if (i40e_vf_client_capable(pf, vf->vf_id) &&
1882             (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_IWARP)) {
1883                 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_IWARP;
1884                 set_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states);
1885         } else {
1886                 clear_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states);
1887         }
1888 
1889         if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) {
1890                 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF;
1891         } else {
1892                 if ((pf->hw_features & I40E_HW_RSS_AQ_CAPABLE) &&
1893                     (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ))
1894                         vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ;
1895                 else
1896                         vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG;
1897         }
1898 
1899         if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) {
1900                 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
1901                         vfres->vf_cap_flags |=
1902                                 VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
1903         }
1904 
1905         if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP)
1906                 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP;
1907 
1908         if ((pf->hw_features & I40E_HW_OUTER_UDP_CSUM_CAPABLE) &&
1909             (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM))
1910                 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM;
1911 
1912         if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) {
1913                 if (pf->flags & I40E_FLAG_MFP_ENABLED) {
1914                         dev_err(&pf->pdev->dev,
1915                                 "VF %d requested polling mode: this feature is supported only when the device is running in single function per port (SFP) mode\n",
1916                                  vf->vf_id);
1917                         aq_ret = I40E_ERR_PARAM;
1918                         goto err;
1919                 }
1920                 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING;
1921         }
1922 
1923         if (pf->hw_features & I40E_HW_WB_ON_ITR_CAPABLE) {
1924                 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
1925                         vfres->vf_cap_flags |=
1926                                         VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
1927         }
1928 
1929         if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES)
1930                 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES;
1931 
1932         if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)
1933                 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADQ;
1934 
1935         vfres->num_vsis = num_vsis;
1936         vfres->num_queue_pairs = vf->num_queue_pairs;
1937         vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
1938         vfres->rss_key_size = I40E_HKEY_ARRAY_SIZE;
1939         vfres->rss_lut_size = I40E_VF_HLUT_ARRAY_SIZE;
1940 
1941         if (vf->lan_vsi_idx) {
1942                 vfres->vsi_res[0].vsi_id = vf->lan_vsi_id;
1943                 vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV;
1944                 vfres->vsi_res[0].num_queue_pairs = vsi->alloc_queue_pairs;
1945                 /* VFs only use TC 0 */
1946                 vfres->vsi_res[0].qset_handle
1947                                           = le16_to_cpu(vsi->info.qs_handle[0]);
1948                 ether_addr_copy(vfres->vsi_res[0].default_mac_addr,
1949                                 vf->default_lan_addr.addr);
1950         }
1951         set_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states);
1952 
1953 err:
1954         /* send the response back to the VF */
1955         ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES,
1956                                      aq_ret, (u8 *)vfres, len);
1957 
1958         kfree(vfres);
1959         return ret;
1960 }
1961 
1962 /**
1963  * i40e_vc_reset_vf_msg
1964  * @vf: pointer to the VF info
1965  *
1966  * called from the VF to reset itself,
1967  * unlike other virtchnl messages, PF driver
1968  * doesn't send the response back to the VF
1969  **/
1970 static void i40e_vc_reset_vf_msg(struct i40e_vf *vf)
1971 {
1972         if (test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states))
1973                 i40e_reset_vf(vf, false);
1974 }
1975 
1976 /**
1977  * i40e_getnum_vf_vsi_vlan_filters
1978  * @vsi: pointer to the vsi
1979  *
1980  * called to get the number of VLANs offloaded on this VF
1981  **/
1982 static inline int i40e_getnum_vf_vsi_vlan_filters(struct i40e_vsi *vsi)
1983 {
1984         struct i40e_mac_filter *f;
1985         int num_vlans = 0, bkt;
1986 
1987         hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
1988                 if (f->vlan >= 0 && f->vlan <= I40E_MAX_VLANID)
1989                         num_vlans++;
1990         }
1991 
1992         return num_vlans;
1993 }
1994 
1995 /**
1996  * i40e_vc_config_promiscuous_mode_msg
1997  * @vf: pointer to the VF info
1998  * @msg: pointer to the msg buffer
1999  *
2000  * called from the VF to configure the promiscuous mode of
2001  * VF vsis
2002  **/
2003 static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf, u8 *msg)
2004 {
2005         struct virtchnl_promisc_info *info =
2006             (struct virtchnl_promisc_info *)msg;
2007         struct i40e_pf *pf = vf->pf;
2008         i40e_status aq_ret = 0;
2009         bool allmulti = false;
2010         bool alluni = false;
2011 
2012         if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2013                 aq_ret = I40E_ERR_PARAM;
2014                 goto err_out;
2015         }
2016         if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
2017                 dev_err(&pf->pdev->dev,
2018                         "Unprivileged VF %d is attempting to configure promiscuous mode\n",
2019                         vf->vf_id);
2020 
2021                 /* Lie to the VF on purpose, because this is an error we can
2022                  * ignore. Unprivileged VF is not a virtual channel error.
2023                  */
2024                 aq_ret = 0;
2025                 goto err_out;
2026         }
2027 
2028         if (info->flags > I40E_MAX_VF_PROMISC_FLAGS) {
2029                 aq_ret = I40E_ERR_PARAM;
2030                 goto err_out;
2031         }
2032 
2033         if (!i40e_vc_isvalid_vsi_id(vf, info->vsi_id)) {
2034                 aq_ret = I40E_ERR_PARAM;
2035                 goto err_out;
2036         }
2037 
2038         /* Multicast promiscuous handling*/
2039         if (info->flags & FLAG_VF_MULTICAST_PROMISC)
2040                 allmulti = true;
2041 
2042         if (info->flags & FLAG_VF_UNICAST_PROMISC)
2043                 alluni = true;
2044         aq_ret = i40e_config_vf_promiscuous_mode(vf, info->vsi_id, allmulti,
2045                                                  alluni);
2046         if (aq_ret)
2047                 goto err_out;
2048 
2049         if (allmulti) {
2050                 if (!test_and_set_bit(I40E_VF_STATE_MC_PROMISC,
2051                                       &vf->vf_states))
2052                         dev_info(&pf->pdev->dev,
2053                                  "VF %d successfully set multicast promiscuous mode\n",
2054                                  vf->vf_id);
2055         } else if (test_and_clear_bit(I40E_VF_STATE_MC_PROMISC,
2056                                       &vf->vf_states))
2057                 dev_info(&pf->pdev->dev,
2058                          "VF %d successfully unset multicast promiscuous mode\n",
2059                          vf->vf_id);
2060 
2061         if (alluni) {
2062                 if (!test_and_set_bit(I40E_VF_STATE_UC_PROMISC,
2063                                       &vf->vf_states))
2064                         dev_info(&pf->pdev->dev,
2065                                  "VF %d successfully set unicast promiscuous mode\n",
2066                                  vf->vf_id);
2067         } else if (test_and_clear_bit(I40E_VF_STATE_UC_PROMISC,
2068                                       &vf->vf_states))
2069                 dev_info(&pf->pdev->dev,
2070                          "VF %d successfully unset unicast promiscuous mode\n",
2071                          vf->vf_id);
2072 
2073 err_out:
2074         /* send the response to the VF */
2075         return i40e_vc_send_resp_to_vf(vf,
2076                                        VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
2077                                        aq_ret);
2078 }
2079 
2080 /**
2081  * i40e_vc_config_queues_msg
2082  * @vf: pointer to the VF info
2083  * @msg: pointer to the msg buffer
2084  *
2085  * called from the VF to configure the rx/tx
2086  * queues
2087  **/
2088 static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg)
2089 {
2090         struct virtchnl_vsi_queue_config_info *qci =
2091             (struct virtchnl_vsi_queue_config_info *)msg;
2092         struct virtchnl_queue_pair_info *qpi;
2093         struct i40e_pf *pf = vf->pf;
2094         u16 vsi_id, vsi_queue_id = 0;
2095         u16 num_qps_all = 0;
2096         i40e_status aq_ret = 0;
2097         int i, j = 0, idx = 0;
2098 
2099         if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2100                 aq_ret = I40E_ERR_PARAM;
2101                 goto error_param;
2102         }
2103 
2104         if (!i40e_vc_isvalid_vsi_id(vf, qci->vsi_id)) {
2105                 aq_ret = I40E_ERR_PARAM;
2106                 goto error_param;
2107         }
2108 
2109         if (qci->num_queue_pairs > I40E_MAX_VF_QUEUES) {
2110                 aq_ret = I40E_ERR_PARAM;
2111                 goto error_param;
2112         }
2113 
2114         if (vf->adq_enabled) {
2115                 for (i = 0; i < I40E_MAX_VF_VSI; i++)
2116                         num_qps_all += vf->ch[i].num_qps;
2117                 if (num_qps_all != qci->num_queue_pairs) {
2118                         aq_ret = I40E_ERR_PARAM;
2119                         goto error_param;
2120                 }
2121         }
2122 
2123         vsi_id = qci->vsi_id;
2124 
2125         for (i = 0; i < qci->num_queue_pairs; i++) {
2126                 qpi = &qci->qpair[i];
2127 
2128                 if (!vf->adq_enabled) {
2129                         if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
2130                                                       qpi->txq.queue_id)) {
2131                                 aq_ret = I40E_ERR_PARAM;
2132                                 goto error_param;
2133                         }
2134 
2135                         vsi_queue_id = qpi->txq.queue_id;
2136 
2137                         if (qpi->txq.vsi_id != qci->vsi_id ||
2138                             qpi->rxq.vsi_id != qci->vsi_id ||
2139                             qpi->rxq.queue_id != vsi_queue_id) {
2140                                 aq_ret = I40E_ERR_PARAM;
2141                                 goto error_param;
2142                         }
2143                 }
2144 
2145                 if (vf->adq_enabled) {
2146                         if (idx >= ARRAY_SIZE(vf->ch)) {
2147                                 aq_ret = I40E_ERR_NO_AVAILABLE_VSI;
2148                                 goto error_param;
2149                         }
2150                         vsi_id = vf->ch[idx].vsi_id;
2151                 }
2152 
2153                 if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
2154                                              &qpi->rxq) ||
2155                     i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
2156                                              &qpi->txq)) {
2157                         aq_ret = I40E_ERR_PARAM;
2158                         goto error_param;
2159                 }
2160 
2161                 /* For ADq there can be up to 4 VSIs with max 4 queues each.
2162                  * VF does not know about these additional VSIs and all
2163                  * it cares is about its own queues. PF configures these queues
2164                  * to its appropriate VSIs based on TC mapping
2165                  */
2166                 if (vf->adq_enabled) {
2167                         if (idx >= ARRAY_SIZE(vf->ch)) {
2168                                 aq_ret = I40E_ERR_NO_AVAILABLE_VSI;
2169                                 goto error_param;
2170                         }
2171                         if (j == (vf->ch[idx].num_qps - 1)) {
2172                                 idx++;
2173                                 j = 0; /* resetting the queue count */
2174                                 vsi_queue_id = 0;
2175                         } else {
2176                                 j++;
2177                                 vsi_queue_id++;
2178                         }
2179                 }
2180         }
2181         /* set vsi num_queue_pairs in use to num configured by VF */
2182         if (!vf->adq_enabled) {
2183                 pf->vsi[vf->lan_vsi_idx]->num_queue_pairs =
2184                         qci->num_queue_pairs;
2185         } else {
2186                 for (i = 0; i < vf->num_tc; i++)
2187                         pf->vsi[vf->ch[i].vsi_idx]->num_queue_pairs =
2188                                vf->ch[i].num_qps;
2189         }
2190 
2191 error_param:
2192         /* send the response to the VF */
2193         return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES,
2194                                        aq_ret);
2195 }
2196 
2197 /**
2198  * i40e_validate_queue_map
2199  * @vsi_id: vsi id
2200  * @queuemap: Tx or Rx queue map
2201  *
2202  * check if Tx or Rx queue map is valid
2203  **/
2204 static int i40e_validate_queue_map(struct i40e_vf *vf, u16 vsi_id,
2205                                    unsigned long queuemap)
2206 {
2207         u16 vsi_queue_id, queue_id;
2208 
2209         for_each_set_bit(vsi_queue_id, &queuemap, I40E_MAX_VSI_QP) {
2210                 if (vf->adq_enabled) {
2211                         vsi_id = vf->ch[vsi_queue_id / I40E_MAX_VF_VSI].vsi_id;
2212                         queue_id = (vsi_queue_id % I40E_DEFAULT_QUEUES_PER_VF);
2213                 } else {
2214                         queue_id = vsi_queue_id;
2215                 }
2216 
2217                 if (!i40e_vc_isvalid_queue_id(vf, vsi_id, queue_id))
2218                         return -EINVAL;
2219         }
2220 
2221         return 0;
2222 }
2223 
2224 /**
2225  * i40e_vc_config_irq_map_msg
2226  * @vf: pointer to the VF info
2227  * @msg: pointer to the msg buffer
2228  *
2229  * called from the VF to configure the irq to
2230  * queue map
2231  **/
2232 static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg)
2233 {
2234         struct virtchnl_irq_map_info *irqmap_info =
2235             (struct virtchnl_irq_map_info *)msg;
2236         struct virtchnl_vector_map *map;
2237         u16 vsi_id;
2238         i40e_status aq_ret = 0;
2239         int i;
2240 
2241         if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2242                 aq_ret = I40E_ERR_PARAM;
2243                 goto error_param;
2244         }
2245 
2246         if (irqmap_info->num_vectors >
2247             vf->pf->hw.func_caps.num_msix_vectors_vf) {
2248                 aq_ret = I40E_ERR_PARAM;
2249                 goto error_param;
2250         }
2251 
2252         for (i = 0; i < irqmap_info->num_vectors; i++) {
2253                 map = &irqmap_info->vecmap[i];
2254                 /* validate msg params */
2255                 if (!i40e_vc_isvalid_vector_id(vf, map->vector_id) ||
2256                     !i40e_vc_isvalid_vsi_id(vf, map->vsi_id)) {
2257                         aq_ret = I40E_ERR_PARAM;
2258                         goto error_param;
2259                 }
2260                 vsi_id = map->vsi_id;
2261 
2262                 if (i40e_validate_queue_map(vf, vsi_id, map->rxq_map)) {
2263                         aq_ret = I40E_ERR_PARAM;
2264                         goto error_param;
2265                 }
2266 
2267                 if (i40e_validate_queue_map(vf, vsi_id, map->txq_map)) {
2268                         aq_ret = I40E_ERR_PARAM;
2269                         goto error_param;
2270                 }
2271 
2272                 i40e_config_irq_link_list(vf, vsi_id, map);
2273         }
2274 error_param:
2275         /* send the response to the VF */
2276         return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP,
2277                                        aq_ret);
2278 }
2279 
2280 /**
2281  * i40e_ctrl_vf_tx_rings
2282  * @vsi: the SRIOV VSI being configured
2283  * @q_map: bit map of the queues to be enabled
2284  * @enable: start or stop the queue
2285  **/
2286 static int i40e_ctrl_vf_tx_rings(struct i40e_vsi *vsi, unsigned long q_map,
2287                                  bool enable)
2288 {
2289         struct i40e_pf *pf = vsi->back;
2290         int ret = 0;
2291         u16 q_id;
2292 
2293         for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) {
2294                 ret = i40e_control_wait_tx_q(vsi->seid, pf,
2295                                              vsi->base_queue + q_id,
2296                                              false /*is xdp*/, enable);
2297                 if (ret)
2298                         break;
2299         }
2300         return ret;
2301 }
2302 
2303 /**
2304  * i40e_ctrl_vf_rx_rings
2305  * @vsi: the SRIOV VSI being configured
2306  * @q_map: bit map of the queues to be enabled
2307  * @enable: start or stop the queue
2308  **/
2309 static int i40e_ctrl_vf_rx_rings(struct i40e_vsi *vsi, unsigned long q_map,
2310                                  bool enable)
2311 {
2312         struct i40e_pf *pf = vsi->back;
2313         int ret = 0;
2314         u16 q_id;
2315 
2316         for_each_set_bit(q_id, &q_map, I40E_MAX_VF_QUEUES) {
2317                 ret = i40e_control_wait_rx_q(pf, vsi->base_queue + q_id,
2318                                              enable);
2319                 if (ret)
2320                         break;
2321         }
2322         return ret;
2323 }
2324 
2325 /**
2326  * i40e_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTHCHNL
2327  * @vqs: virtchnl_queue_select structure containing bitmaps to validate
2328  *
2329  * Returns true if validation was successful, else false.
2330  */
2331 static bool i40e_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs)
2332 {
2333         if ((!vqs->rx_queues && !vqs->tx_queues) ||
2334             vqs->rx_queues >= BIT(I40E_MAX_VF_QUEUES) ||
2335             vqs->tx_queues >= BIT(I40E_MAX_VF_QUEUES))
2336                 return false;
2337 
2338         return true;
2339 }
2340 
2341 /**
2342  * i40e_vc_enable_queues_msg
2343  * @vf: pointer to the VF info
2344  * @msg: pointer to the msg buffer
2345  *
2346  * called from the VF to enable all or specific queue(s)
2347  **/
2348 static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg)
2349 {
2350         struct virtchnl_queue_select *vqs =
2351             (struct virtchnl_queue_select *)msg;
2352         struct i40e_pf *pf = vf->pf;
2353         i40e_status aq_ret = 0;
2354         int i;
2355 
2356         if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2357                 aq_ret = I40E_ERR_PARAM;
2358                 goto error_param;
2359         }
2360 
2361         if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2362                 aq_ret = I40E_ERR_PARAM;
2363                 goto error_param;
2364         }
2365 
2366         if (!i40e_vc_validate_vqs_bitmaps(vqs)) {
2367                 aq_ret = I40E_ERR_PARAM;
2368                 goto error_param;
2369         }
2370 
2371         /* Use the queue bit map sent by the VF */
2372         if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues,
2373                                   true)) {
2374                 aq_ret = I40E_ERR_TIMEOUT;
2375                 goto error_param;
2376         }
2377         if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues,
2378                                   true)) {
2379                 aq_ret = I40E_ERR_TIMEOUT;
2380                 goto error_param;
2381         }
2382 
2383         /* need to start the rings for additional ADq VSI's as well */
2384         if (vf->adq_enabled) {
2385                 /* zero belongs to LAN VSI */
2386                 for (i = 1; i < vf->num_tc; i++) {
2387                         if (i40e_vsi_start_rings(pf->vsi[vf->ch[i].vsi_idx]))
2388                                 aq_ret = I40E_ERR_TIMEOUT;
2389                 }
2390         }
2391 
2392         vf->queues_enabled = true;
2393 
2394 error_param:
2395         /* send the response to the VF */
2396         return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES,
2397                                        aq_ret);
2398 }
2399 
2400 /**
2401  * i40e_vc_disable_queues_msg
2402  * @vf: pointer to the VF info
2403  * @msg: pointer to the msg buffer
2404  *
2405  * called from the VF to disable all or specific
2406  * queue(s)
2407  **/
2408 static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg)
2409 {
2410         struct virtchnl_queue_select *vqs =
2411             (struct virtchnl_queue_select *)msg;
2412         struct i40e_pf *pf = vf->pf;
2413         i40e_status aq_ret = 0;
2414 
2415         /* Immediately mark queues as disabled */
2416         vf->queues_enabled = false;
2417 
2418         if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2419                 aq_ret = I40E_ERR_PARAM;
2420                 goto error_param;
2421         }
2422 
2423         if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2424                 aq_ret = I40E_ERR_PARAM;
2425                 goto error_param;
2426         }
2427 
2428         if (!i40e_vc_validate_vqs_bitmaps(vqs)) {
2429                 aq_ret = I40E_ERR_PARAM;
2430                 goto error_param;
2431         }
2432 
2433         /* Use the queue bit map sent by the VF */
2434         if (i40e_ctrl_vf_tx_rings(pf->vsi[vf->lan_vsi_idx], vqs->tx_queues,
2435                                   false)) {
2436                 aq_ret = I40E_ERR_TIMEOUT;
2437                 goto error_param;
2438         }
2439         if (i40e_ctrl_vf_rx_rings(pf->vsi[vf->lan_vsi_idx], vqs->rx_queues,
2440                                   false)) {
2441                 aq_ret = I40E_ERR_TIMEOUT;
2442                 goto error_param;
2443         }
2444 error_param:
2445         /* send the response to the VF */
2446         return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES,
2447                                        aq_ret);
2448 }
2449 
2450 /**
2451  * i40e_vc_request_queues_msg
2452  * @vf: pointer to the VF info
2453  * @msg: pointer to the msg buffer
2454  *
2455  * VFs get a default number of queues but can use this message to request a
2456  * different number.  If the request is successful, PF will reset the VF and
2457  * return 0.  If unsuccessful, PF will send message informing VF of number of
2458  * available queues and return result of sending VF a message.
2459  **/
2460 static int i40e_vc_request_queues_msg(struct i40e_vf *vf, u8 *msg)
2461 {
2462         struct virtchnl_vf_res_request *vfres =
2463                 (struct virtchnl_vf_res_request *)msg;
2464         u16 req_pairs = vfres->num_queue_pairs;
2465         u8 cur_pairs = vf->num_queue_pairs;
2466         struct i40e_pf *pf = vf->pf;
2467 
2468         if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states))
2469                 return -EINVAL;
2470 
2471         if (req_pairs > I40E_MAX_VF_QUEUES) {
2472                 dev_err(&pf->pdev->dev,
2473                         "VF %d tried to request more than %d queues.\n",
2474                         vf->vf_id,
2475                         I40E_MAX_VF_QUEUES);
2476                 vfres->num_queue_pairs = I40E_MAX_VF_QUEUES;
2477         } else if (req_pairs - cur_pairs > pf->queues_left) {
2478                 dev_warn(&pf->pdev->dev,
2479                          "VF %d requested %d more queues, but only %d left.\n",
2480                          vf->vf_id,
2481                          req_pairs - cur_pairs,
2482                          pf->queues_left);
2483                 vfres->num_queue_pairs = pf->queues_left + cur_pairs;
2484         } else {
2485                 /* successful request */
2486                 vf->num_req_queues = req_pairs;
2487                 i40e_vc_notify_vf_reset(vf);
2488                 i40e_reset_vf(vf, false);
2489                 return 0;
2490         }
2491 
2492         return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES, 0,
2493                                       (u8 *)vfres, sizeof(*vfres));
2494 }
2495 
2496 /**
2497  * i40e_vc_get_stats_msg
2498  * @vf: pointer to the VF info
2499  * @msg: pointer to the msg buffer
2500  *
2501  * called from the VF to get vsi stats
2502  **/
2503 static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg)
2504 {
2505         struct virtchnl_queue_select *vqs =
2506             (struct virtchnl_queue_select *)msg;
2507         struct i40e_pf *pf = vf->pf;
2508         struct i40e_eth_stats stats;
2509         i40e_status aq_ret = 0;
2510         struct i40e_vsi *vsi;
2511 
2512         memset(&stats, 0, sizeof(struct i40e_eth_stats));
2513 
2514         if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
2515                 aq_ret = I40E_ERR_PARAM;
2516                 goto error_param;
2517         }
2518 
2519         if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
2520                 aq_ret = I40E_ERR_PARAM;
2521                 goto error_param;
2522         }
2523 
2524         vsi = pf->vsi[vf->lan_vsi_idx];
2525         if (!vsi) {
2526                 aq_ret = I40E_ERR_PARAM;
2527                 goto error_param;
2528         }
2529         i40e_update_eth_stats(vsi);
2530         stats = vsi->eth_stats;
2531 
2532 error_param:
2533         /* send the response back to the VF */
2534         return i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, aq_ret,
2535                                       (u8 *)&stats, sizeof(stats));
2536 }
2537 
2538 /* If the VF is not trusted restrict the number of MAC/VLAN it can program
2539  * MAC filters: 16 for multicast, 1 for MAC, 1 for broadcast
2540  */
2541 #define I40E_VC_MAX_MAC_ADDR_PER_VF (16 + 1 + 1)
2542 #define I40E_VC_MAX_VLAN_PER_VF 16
2543 
2544 /**
2545  * i40e_check_vf_permission
2546  * @vf: pointer to the VF info
2547  * @al: MAC address list from virtchnl
2548  *
2549  * Check that the given list of MAC addresses is allowed. Will return -EPERM
2550  * if any address in the list is not valid. Checks the following conditions:
2551  *
2552  * 1) broadcast and zero addresses are never valid
2553  * 2) unicast addresses are not allowed if the VMM has administratively set
2554  *    the VF MAC address, unless the VF is marked as privileged.
2555  * 3) There is enough space to add all the addresses.
2556  *
2557  * Note that to guarantee consistency, it is expected this function be called
2558  * while holding the mac_filter_hash_lock, as otherwise the current number of
2559  * addresses might not be accurate.
2560  **/
2561 static inline int i40e_check_vf_permission(struct i40e_vf *vf,
2562                                            struct virtchnl_ether_addr_list *al)
2563 {
2564         struct i40e_pf *pf = vf->pf;
2565         int i;
2566 
2567         /* If this VF is not privileged, then we can't add more than a limited
2568          * number of addresses. Check to make sure that the additions do not
2569          * push us over the limit.
2570          */
2571         if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) &&
2572             (vf->num_mac + al->num_elements) > I40E_VC_MAX_MAC_ADDR_PER_VF) {
2573                 dev_err(&pf->pdev->dev,
2574                         "Cannot add more MAC addresses, VF is not trusted, switch the VF to trusted to add more functionality\n");
2575                 return -EPERM;
2576         }
2577 
2578         for (i = 0; i < al->num_elements; i++) {
2579                 u8 *addr = al->list[i].addr;
2580 
2581                 if (is_broadcast_ether_addr(addr) ||
2582                     is_zero_ether_addr(addr)) {
2583                         dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n",
2584                                 addr);
2585                         return I40E_ERR_INVALID_MAC_ADDR;
2586                 }
2587 
2588                 /* If the host VMM administrator has set the VF MAC address
2589                  * administratively via the ndo_set_vf_mac command then deny
2590                  * permission to the VF to add or delete unicast MAC addresses.
2591                  * Unless the VF is privileged and then it can do whatever.
2592                  * The VF may request to set the MAC address filter already
2593                  * assigned to it so do not return an error in that case.
2594                  */
2595                 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) &&
2596                     !is_multicast_ether_addr(addr) && vf->pf_set_mac &&
2597                     !ether_addr_equal(addr, vf->default_lan_addr.addr)) {
2598                         dev_err(&pf->pdev->dev,
2599                                 "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n");
2600                         return -EPERM;
2601                 }
2602         }
2603 
2604         return 0;
2605 }
2606 
2607 /**
2608  * i40e_vc_add_mac_addr_msg
2609  * @vf: pointer to the VF info
2610  * @msg: pointer to the msg buffer
2611  *
2612  * add guest mac address filter
2613  **/
2614 static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
2615 {
2616         struct virtchnl_ether_addr_list *al =
2617             (struct virtchnl_ether_addr_list *)msg;
2618         struct i40e_pf *pf = vf->pf;
2619         struct i40e_vsi *vsi = NULL;
2620         i40e_status ret = 0;
2621         int i;
2622 
2623         if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2624             !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) {
2625                 ret = I40E_ERR_PARAM;
2626                 goto error_param;
2627         }
2628 
2629         vsi = pf->vsi[vf->lan_vsi_idx];
2630 
2631         /* Lock once, because all function inside for loop accesses VSI's
2632          * MAC filter list which needs to be protected using same lock.
2633          */
2634         spin_lock_bh(&vsi->mac_filter_hash_lock);
2635 
2636         ret = i40e_check_vf_permission(vf, al);
2637         if (ret) {
2638                 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2639                 goto error_param;
2640         }
2641 
2642         /* add new addresses to the list */
2643         for (i = 0; i < al->num_elements; i++) {
2644                 struct i40e_mac_filter *f;
2645 
2646                 f = i40e_find_mac(vsi, al->list[i].addr);
2647                 if (!f) {
2648                         f = i40e_add_mac_filter(vsi, al->list[i].addr);
2649 
2650                         if (!f) {
2651                                 dev_err(&pf->pdev->dev,
2652                                         "Unable to add MAC filter %pM for VF %d\n",
2653                                         al->list[i].addr, vf->vf_id);
2654                                 ret = I40E_ERR_PARAM;
2655                                 spin_unlock_bh(&vsi->mac_filter_hash_lock);
2656                                 goto error_param;
2657                         } else {
2658                                 vf->num_mac++;
2659                         }
2660                 }
2661         }
2662         spin_unlock_bh(&vsi->mac_filter_hash_lock);
2663 
2664         /* program the updated filter list */
2665         ret = i40e_sync_vsi_filters(vsi);
2666         if (ret)
2667                 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
2668                         vf->vf_id, ret);
2669 
2670 error_param:
2671         /* send the response to the VF */
2672         return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR,
2673                                        ret);
2674 }
2675 
2676 /**
2677  * i40e_vc_del_mac_addr_msg
2678  * @vf: pointer to the VF info
2679  * @msg: pointer to the msg buffer
2680  *
2681  * remove guest mac address filter
2682  **/
2683 static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg)
2684 {
2685         struct virtchnl_ether_addr_list *al =
2686             (struct virtchnl_ether_addr_list *)msg;
2687         struct i40e_pf *pf = vf->pf;
2688         struct i40e_vsi *vsi = NULL;
2689         i40e_status ret = 0;
2690         int i;
2691 
2692         if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2693             !i40e_vc_isvalid_vsi_id(vf, al->vsi_id)) {
2694                 ret = I40E_ERR_PARAM;
2695                 goto error_param;
2696         }
2697 
2698         for (i = 0; i < al->num_elements; i++) {
2699                 if (is_broadcast_ether_addr(al->list[i].addr) ||
2700                     is_zero_ether_addr(al->list[i].addr)) {
2701                         dev_err(&pf->pdev->dev, "Invalid MAC addr %pM for VF %d\n",
2702                                 al->list[i].addr, vf->vf_id);
2703                         ret = I40E_ERR_INVALID_MAC_ADDR;
2704                         goto error_param;
2705                 }
2706 
2707                 if (vf->pf_set_mac &&
2708                     ether_addr_equal(al->list[i].addr,
2709                                      vf->default_lan_addr.addr)) {
2710                         dev_err(&pf->pdev->dev,
2711                                 "MAC addr %pM has been set by PF, cannot delete it for VF %d, reset VF to change MAC addr\n",
2712                                 vf->default_lan_addr.addr, vf->vf_id);
2713                         ret = I40E_ERR_PARAM;
2714                         goto error_param;
2715                 }
2716         }
2717         vsi = pf->vsi[vf->lan_vsi_idx];
2718 
2719         spin_lock_bh(&vsi->mac_filter_hash_lock);
2720         /* delete addresses from the list */
2721         for (i = 0; i < al->num_elements; i++)
2722                 if (i40e_del_mac_filter(vsi, al->list[i].addr)) {
2723                         ret = I40E_ERR_INVALID_MAC_ADDR;
2724                         spin_unlock_bh(&vsi->mac_filter_hash_lock);
2725                         goto error_param;
2726                 } else {
2727                         vf->num_mac--;
2728                 }
2729 
2730         spin_unlock_bh(&vsi->mac_filter_hash_lock);
2731 
2732         /* program the updated filter list */
2733         ret = i40e_sync_vsi_filters(vsi);
2734         if (ret)
2735                 dev_err(&pf->pdev->dev, "Unable to program VF %d MAC filters, error %d\n",
2736                         vf->vf_id, ret);
2737 
2738 error_param:
2739         /* send the response to the VF */
2740         return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR,
2741                                        ret);
2742 }
2743 
2744 /**
2745  * i40e_vc_add_vlan_msg
2746  * @vf: pointer to the VF info
2747  * @msg: pointer to the msg buffer
2748  *
2749  * program guest vlan id
2750  **/
2751 static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg)
2752 {
2753         struct virtchnl_vlan_filter_list *vfl =
2754             (struct virtchnl_vlan_filter_list *)msg;
2755         struct i40e_pf *pf = vf->pf;
2756         struct i40e_vsi *vsi = NULL;
2757         i40e_status aq_ret = 0;
2758         int i;
2759 
2760         if ((vf->num_vlan >= I40E_VC_MAX_VLAN_PER_VF) &&
2761             !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
2762                 dev_err(&pf->pdev->dev,
2763                         "VF is not trusted, switch the VF to trusted to add more VLAN addresses\n");
2764                 goto error_param;
2765         }
2766         if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2767             !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) {
2768                 aq_ret = I40E_ERR_PARAM;
2769                 goto error_param;
2770         }
2771 
2772         for (i = 0; i < vfl->num_elements; i++) {
2773                 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
2774                         aq_ret = I40E_ERR_PARAM;
2775                         dev_err(&pf->pdev->dev,
2776                                 "invalid VF VLAN id %d\n", vfl->vlan_id[i]);
2777                         goto error_param;
2778                 }
2779         }
2780         vsi = pf->vsi[vf->lan_vsi_idx];
2781         if (vsi->info.pvid) {
2782                 aq_ret = I40E_ERR_PARAM;
2783                 goto error_param;
2784         }
2785 
2786         i40e_vlan_stripping_enable(vsi);
2787         for (i = 0; i < vfl->num_elements; i++) {
2788                 /* add new VLAN filter */
2789                 int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);
2790                 if (!ret)
2791                         vf->num_vlan++;
2792 
2793                 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
2794                         i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,
2795                                                            true,
2796                                                            vfl->vlan_id[i],
2797                                                            NULL);
2798                 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
2799                         i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,
2800                                                            true,
2801                                                            vfl->vlan_id[i],
2802                                                            NULL);
2803 
2804                 if (ret)
2805                         dev_err(&pf->pdev->dev,
2806                                 "Unable to add VLAN filter %d for VF %d, error %d\n",
2807                                 vfl->vlan_id[i], vf->vf_id, ret);
2808         }
2809 
2810 error_param:
2811         /* send the response to the VF */
2812         return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, aq_ret);
2813 }
2814 
2815 /**
2816  * i40e_vc_remove_vlan_msg
2817  * @vf: pointer to the VF info
2818  * @msg: pointer to the msg buffer
2819  *
2820  * remove programmed guest vlan id
2821  **/
2822 static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg)
2823 {
2824         struct virtchnl_vlan_filter_list *vfl =
2825             (struct virtchnl_vlan_filter_list *)msg;
2826         struct i40e_pf *pf = vf->pf;
2827         struct i40e_vsi *vsi = NULL;
2828         i40e_status aq_ret = 0;
2829         int i;
2830 
2831         if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2832             !i40e_vc_isvalid_vsi_id(vf, vfl->vsi_id)) {
2833                 aq_ret = I40E_ERR_PARAM;
2834                 goto error_param;
2835         }
2836 
2837         for (i = 0; i < vfl->num_elements; i++) {
2838                 if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
2839                         aq_ret = I40E_ERR_PARAM;
2840                         goto error_param;
2841                 }
2842         }
2843 
2844         vsi = pf->vsi[vf->lan_vsi_idx];
2845         if (vsi->info.pvid) {
2846                 if (vfl->num_elements > 1 || vfl->vlan_id[0])
2847                         aq_ret = I40E_ERR_PARAM;
2848                 goto error_param;
2849         }
2850 
2851         for (i = 0; i < vfl->num_elements; i++) {
2852                 i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);
2853                 vf->num_vlan--;
2854 
2855                 if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
2856                         i40e_aq_set_vsi_uc_promisc_on_vlan(&pf->hw, vsi->seid,
2857                                                            false,
2858                                                            vfl->vlan_id[i],
2859                                                            NULL);
2860                 if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
2861                         i40e_aq_set_vsi_mc_promisc_on_vlan(&pf->hw, vsi->seid,
2862                                                            false,
2863                                                            vfl->vlan_id[i],
2864                                                            NULL);
2865         }
2866 
2867 error_param:
2868         /* send the response to the VF */
2869         return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, aq_ret);
2870 }
2871 
2872 /**
2873  * i40e_vc_iwarp_msg
2874  * @vf: pointer to the VF info
2875  * @msg: pointer to the msg buffer
2876  * @msglen: msg length
2877  *
2878  * called from the VF for the iwarp msgs
2879  **/
2880 static int i40e_vc_iwarp_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
2881 {
2882         struct i40e_pf *pf = vf->pf;
2883         int abs_vf_id = vf->vf_id + pf->hw.func_caps.vf_base_id;
2884         i40e_status aq_ret = 0;
2885 
2886         if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2887             !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) {
2888                 aq_ret = I40E_ERR_PARAM;
2889                 goto error_param;
2890         }
2891 
2892         i40e_notify_client_of_vf_msg(pf->vsi[pf->lan_vsi], abs_vf_id,
2893                                      msg, msglen);
2894 
2895 error_param:
2896         /* send the response to the VF */
2897         return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_IWARP,
2898                                        aq_ret);
2899 }
2900 
2901 /**
2902  * i40e_vc_iwarp_qvmap_msg
2903  * @vf: pointer to the VF info
2904  * @msg: pointer to the msg buffer
2905  * @config: config qvmap or release it
2906  *
2907  * called from the VF for the iwarp msgs
2908  **/
2909 static int i40e_vc_iwarp_qvmap_msg(struct i40e_vf *vf, u8 *msg, bool config)
2910 {
2911         struct virtchnl_iwarp_qvlist_info *qvlist_info =
2912                                 (struct virtchnl_iwarp_qvlist_info *)msg;
2913         i40e_status aq_ret = 0;
2914 
2915         if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2916             !test_bit(I40E_VF_STATE_IWARPENA, &vf->vf_states)) {
2917                 aq_ret = I40E_ERR_PARAM;
2918                 goto error_param;
2919         }
2920 
2921         if (config) {
2922                 if (i40e_config_iwarp_qvlist(vf, qvlist_info))
2923                         aq_ret = I40E_ERR_PARAM;
2924         } else {
2925                 i40e_release_iwarp_qvlist(vf);
2926         }
2927 
2928 error_param:
2929         /* send the response to the VF */
2930         return i40e_vc_send_resp_to_vf(vf,
2931                                config ? VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP :
2932                                VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP,
2933                                aq_ret);
2934 }
2935 
2936 /**
2937  * i40e_vc_config_rss_key
2938  * @vf: pointer to the VF info
2939  * @msg: pointer to the msg buffer
2940  *
2941  * Configure the VF's RSS key
2942  **/
2943 static int i40e_vc_config_rss_key(struct i40e_vf *vf, u8 *msg)
2944 {
2945         struct virtchnl_rss_key *vrk =
2946                 (struct virtchnl_rss_key *)msg;
2947         struct i40e_pf *pf = vf->pf;
2948         struct i40e_vsi *vsi = NULL;
2949         i40e_status aq_ret = 0;
2950 
2951         if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2952             !i40e_vc_isvalid_vsi_id(vf, vrk->vsi_id) ||
2953             (vrk->key_len != I40E_HKEY_ARRAY_SIZE)) {
2954                 aq_ret = I40E_ERR_PARAM;
2955                 goto err;
2956         }
2957 
2958         vsi = pf->vsi[vf->lan_vsi_idx];
2959         aq_ret = i40e_config_rss(vsi, vrk->key, NULL, 0);
2960 err:
2961         /* send the response to the VF */
2962         return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY,
2963                                        aq_ret);
2964 }
2965 
2966 /**
2967  * i40e_vc_config_rss_lut
2968  * @vf: pointer to the VF info
2969  * @msg: pointer to the msg buffer
2970  *
2971  * Configure the VF's RSS LUT
2972  **/
2973 static int i40e_vc_config_rss_lut(struct i40e_vf *vf, u8 *msg)
2974 {
2975         struct virtchnl_rss_lut *vrl =
2976                 (struct virtchnl_rss_lut *)msg;
2977         struct i40e_pf *pf = vf->pf;
2978         struct i40e_vsi *vsi = NULL;
2979         i40e_status aq_ret = 0;
2980         u16 i;
2981 
2982         if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states) ||
2983             !i40e_vc_isvalid_vsi_id(vf, vrl->vsi_id) ||
2984             (vrl->lut_entries != I40E_VF_HLUT_ARRAY_SIZE)) {
2985                 aq_ret = I40E_ERR_PARAM;
2986                 goto err;
2987         }
2988 
2989         for (i = 0; i < vrl->lut_entries; i++)
2990                 if (vrl->lut[i] >= vf->num_queue_pairs) {
2991                         aq_ret = I40E_ERR_PARAM;
2992                         goto err;
2993                 }
2994 
2995         vsi = pf->vsi[vf->lan_vsi_idx];
2996         aq_ret = i40e_config_rss(vsi, NULL, vrl->lut, I40E_VF_HLUT_ARRAY_SIZE);
2997         /* send the response to the VF */
2998 err:
2999         return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT,
3000                                        aq_ret);
3001 }
3002 
3003 /**
3004  * i40e_vc_get_rss_hena
3005  * @vf: pointer to the VF info
3006  * @msg: pointer to the msg buffer
3007  *
3008  * Return the RSS HENA bits allowed by the hardware
3009  **/
3010 static int i40e_vc_get_rss_hena(struct i40e_vf *vf, u8 *msg)
3011 {
3012         struct virtchnl_rss_hena *vrh = NULL;
3013         struct i40e_pf *pf = vf->pf;
3014         i40e_status aq_ret = 0;
3015         int len = 0;
3016 
3017         if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
3018                 aq_ret = I40E_ERR_PARAM;
3019                 goto err;
3020         }
3021         len = sizeof(struct virtchnl_rss_hena);
3022 
3023         vrh = kzalloc(len, GFP_KERNEL);
3024         if (!vrh) {
3025                 aq_ret = I40E_ERR_NO_MEMORY;
3026                 len = 0;
3027                 goto err;
3028         }
3029         vrh->hena = i40e_pf_get_default_rss_hena(pf);
3030 err:
3031         /* send the response back to the VF */
3032         aq_ret = i40e_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_RSS_HENA_CAPS,
3033                                         aq_ret, (u8 *)vrh, len);
3034         kfree(vrh);
3035         return aq_ret;
3036 }
3037 
3038 /**
3039  * i40e_vc_set_rss_hena
3040  * @vf: pointer to the VF info
3041  * @msg: pointer to the msg buffer
3042  *
3043  * Set the RSS HENA bits for the VF
3044  **/
3045 static int i40e_vc_set_rss_hena(struct i40e_vf *vf, u8 *msg)
3046 {
3047         struct virtchnl_rss_hena *vrh =
3048                 (struct virtchnl_rss_hena *)msg;
3049         struct i40e_pf *pf = vf->pf;
3050         struct i40e_hw *hw = &pf->hw;
3051         i40e_status aq_ret = 0;
3052 
3053         if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
3054                 aq_ret = I40E_ERR_PARAM;
3055                 goto err;
3056         }
3057         i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(0, vf->vf_id), (u32)vrh->hena);
3058         i40e_write_rx_ctl(hw, I40E_VFQF_HENA1(1, vf->vf_id),
3059                           (u32)(vrh->hena >> 32));
3060 
3061         /* send the response to the VF */
3062 err:
3063         return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_SET_RSS_HENA, aq_ret);
3064 }
3065 
3066 /**
3067  * i40e_vc_enable_vlan_stripping
3068  * @vf: pointer to the VF info
3069  * @msg: pointer to the msg buffer
3070  *
3071  * Enable vlan header stripping for the VF
3072  **/
3073 static int i40e_vc_enable_vlan_stripping(struct i40e_vf *vf, u8 *msg)
3074 {
3075         i40e_status aq_ret = 0;
3076         struct i40e_vsi *vsi;
3077 
3078         if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
3079                 aq_ret = I40E_ERR_PARAM;
3080                 goto err;
3081         }
3082 
3083         vsi = vf->pf->vsi[vf->lan_vsi_idx];
3084         i40e_vlan_stripping_enable(vsi);
3085 
3086         /* send the response to the VF */
3087 err:
3088         return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING,
3089                                        aq_ret);
3090 }
3091 
3092 /**
3093  * i40e_vc_disable_vlan_stripping
3094  * @vf: pointer to the VF info
3095  * @msg: pointer to the msg buffer
3096  *
3097  * Disable vlan header stripping for the VF
3098  **/
3099 static int i40e_vc_disable_vlan_stripping(struct i40e_vf *vf, u8 *msg)
3100 {
3101         i40e_status aq_ret = 0;
3102         struct i40e_vsi *vsi;
3103 
3104         if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
3105                 aq_ret = I40E_ERR_PARAM;
3106                 goto err;
3107         }
3108 
3109         vsi = vf->pf->vsi[vf->lan_vsi_idx];
3110         i40e_vlan_stripping_disable(vsi);
3111 
3112         /* send the response to the VF */
3113 err:
3114         return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING,
3115                                        aq_ret);
3116 }
3117 
3118 /**
3119  * i40e_validate_cloud_filter
3120  * @mask: mask for TC filter
3121  * @data: data for TC filter
3122  *
3123  * This function validates cloud filter programmed as TC filter for ADq
3124  **/
3125 static int i40e_validate_cloud_filter(struct i40e_vf *vf,
3126                                       struct virtchnl_filter *tc_filter)
3127 {
3128         struct virtchnl_l4_spec mask = tc_filter->mask.tcp_spec;
3129         struct virtchnl_l4_spec data = tc_filter->data.tcp_spec;
3130         struct i40e_pf *pf = vf->pf;
3131         struct i40e_vsi *vsi = NULL;
3132         struct i40e_mac_filter *f;
3133         struct hlist_node *h;
3134         bool found = false;
3135         int bkt;
3136 
3137         if (!tc_filter->action) {
3138                 dev_info(&pf->pdev->dev,
3139                          "VF %d: Currently ADq doesn't support Drop Action\n",
3140                          vf->vf_id);
3141                 goto err;
3142         }
3143 
3144         /* action_meta is TC number here to which the filter is applied */
3145         if (!tc_filter->action_meta ||
3146             tc_filter->action_meta > I40E_MAX_VF_VSI) {
3147                 dev_info(&pf->pdev->dev, "VF %d: Invalid TC number %u\n",
3148                          vf->vf_id, tc_filter->action_meta);
3149                 goto err;
3150         }
3151 
3152         /* Check filter if it's programmed for advanced mode or basic mode.
3153          * There are two ADq modes (for VF only),
3154          * 1. Basic mode: intended to allow as many filter options as possible
3155          *                to be added to a VF in Non-trusted mode. Main goal is
3156          *                to add filters to its own MAC and VLAN id.
3157          * 2. Advanced mode: is for allowing filters to be applied other than
3158          *                its own MAC or VLAN. This mode requires the VF to be
3159          *                Trusted.
3160          */
3161         if (mask.dst_mac[0] && !mask.dst_ip[0]) {
3162                 vsi = pf->vsi[vf->lan_vsi_idx];
3163                 f = i40e_find_mac(vsi, data.dst_mac);
3164 
3165                 if (!f) {
3166                         dev_info(&pf->pdev->dev,
3167                                  "Destination MAC %pM doesn't belong to VF %d\n",
3168                                  data.dst_mac, vf->vf_id);
3169                         goto err;
3170                 }
3171 
3172                 if (mask.vlan_id) {
3173                         hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f,
3174                                            hlist) {
3175                                 if (f->vlan == ntohs(data.vlan_id)) {
3176                                         found = true;
3177                                         break;
3178                                 }
3179                         }
3180                         if (!found) {
3181                                 dev_info(&pf->pdev->dev,
3182                                          "VF %d doesn't have any VLAN id %u\n",
3183                                          vf->vf_id, ntohs(data.vlan_id));
3184                                 goto err;
3185                         }
3186                 }
3187         } else {
3188                 /* Check if VF is trusted */
3189                 if (!test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps)) {
3190                         dev_err(&pf->pdev->dev,
3191                                 "VF %d not trusted, make VF trusted to add advanced mode ADq cloud filters\n",
3192                                 vf->vf_id);
3193                         return I40E_ERR_CONFIG;
3194                 }
3195         }
3196 
3197         if (mask.dst_mac[0] & data.dst_mac[0]) {
3198                 if (is_broadcast_ether_addr(data.dst_mac) ||
3199                     is_zero_ether_addr(data.dst_mac)) {
3200                         dev_info(&pf->pdev->dev, "VF %d: Invalid Dest MAC addr %pM\n",
3201                                  vf->vf_id, data.dst_mac);
3202                         goto err;
3203                 }
3204         }
3205 
3206         if (mask.src_mac[0] & data.src_mac[0]) {
3207                 if (is_broadcast_ether_addr(data.src_mac) ||
3208                     is_zero_ether_addr(data.src_mac)) {
3209                         dev_info(&pf->pdev->dev, "VF %d: Invalid Source MAC addr %pM\n",
3210                                  vf->vf_id, data.src_mac);
3211                         goto err;
3212                 }
3213         }
3214 
3215         if (mask.dst_port & data.dst_port) {
3216                 if (!data.dst_port) {
3217                         dev_info(&pf->pdev->dev, "VF %d: Invalid Dest port\n",
3218                                  vf->vf_id);
3219                         goto err;
3220                 }
3221         }
3222 
3223         if (mask.src_port & data.src_port) {
3224                 if (!data.src_port) {
3225                         dev_info(&pf->pdev->dev, "VF %d: Invalid Source port\n",
3226                                  vf->vf_id);
3227                         goto err;
3228                 }
3229         }
3230 
3231         if (tc_filter->flow_type != VIRTCHNL_TCP_V6_FLOW &&
3232             tc_filter->flow_type != VIRTCHNL_TCP_V4_FLOW) {
3233                 dev_info(&pf->pdev->dev, "VF %d: Invalid Flow type\n",
3234                          vf->vf_id);
3235                 goto err;
3236         }
3237 
3238         if (mask.vlan_id & data.vlan_id) {
3239                 if (ntohs(data.vlan_id) > I40E_MAX_VLANID) {
3240                         dev_info(&pf->pdev->dev, "VF %d: invalid VLAN ID\n",
3241                                  vf->vf_id);
3242                         goto err;
3243                 }
3244         }
3245 
3246         return I40E_SUCCESS;
3247 err:
3248         return I40E_ERR_CONFIG;
3249 }
3250 
3251 /**
3252  * i40e_find_vsi_from_seid - searches for the vsi with the given seid
3253  * @vf: pointer to the VF info
3254  * @seid - seid of the vsi it is searching for
3255  **/
3256 static struct i40e_vsi *i40e_find_vsi_from_seid(struct i40e_vf *vf, u16 seid)
3257 {
3258         struct i40e_pf *pf = vf->pf;
3259         struct i40e_vsi *vsi = NULL;
3260         int i;
3261 
3262         for (i = 0; i < vf->num_tc ; i++) {
3263                 vsi = i40e_find_vsi_from_id(pf, vf->ch[i].vsi_id);
3264                 if (vsi && vsi->seid == seid)
3265                         return vsi;
3266         }
3267         return NULL;
3268 }
3269 
3270 /**
3271  * i40e_del_all_cloud_filters
3272  * @vf: pointer to the VF info
3273  *
3274  * This function deletes all cloud filters
3275  **/
3276 static void i40e_del_all_cloud_filters(struct i40e_vf *vf)
3277 {
3278         struct i40e_cloud_filter *cfilter = NULL;
3279         struct i40e_pf *pf = vf->pf;
3280         struct i40e_vsi *vsi = NULL;
3281         struct hlist_node *node;
3282         int ret;
3283 
3284         hlist_for_each_entry_safe(cfilter, node,
3285                                   &vf->cloud_filter_list, cloud_node) {
3286                 vsi = i40e_find_vsi_from_seid(vf, cfilter->seid);
3287 
3288                 if (!vsi) {
3289                         dev_err(&pf->pdev->dev, "VF %d: no VSI found for matching %u seid, can't delete cloud filter\n",
3290                                 vf->vf_id, cfilter->seid);
3291                         continue;
3292                 }
3293 
3294                 if (cfilter->dst_port)
3295                         ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter,
3296                                                                 false);
3297                 else
3298                         ret = i40e_add_del_cloud_filter(vsi, cfilter, false);
3299                 if (ret)
3300                         dev_err(&pf->pdev->dev,
3301                                 "VF %d: Failed to delete cloud filter, err %s aq_err %s\n",
3302                                 vf->vf_id, i40e_stat_str(&pf->hw, ret),
3303                                 i40e_aq_str(&pf->hw,
3304                                             pf->hw.aq.asq_last_status));
3305 
3306                 hlist_del(&cfilter->cloud_node);
3307                 kfree(cfilter);
3308                 vf->num_cloud_filters--;
3309         }
3310 }
3311 
3312 /**
3313  * i40e_vc_del_cloud_filter
3314  * @vf: pointer to the VF info
3315  * @msg: pointer to the msg buffer
3316  *
3317  * This function deletes a cloud filter programmed as TC filter for ADq
3318  **/
3319 static int i40e_vc_del_cloud_filter(struct i40e_vf *vf, u8 *msg)
3320 {
3321         struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg;
3322         struct virtchnl_l4_spec mask = vcf->mask.tcp_spec;
3323         struct virtchnl_l4_spec tcf = vcf->data.tcp_spec;
3324         struct i40e_cloud_filter cfilter, *cf = NULL;
3325         struct i40e_pf *pf = vf->pf;
3326         struct i40e_vsi *vsi = NULL;
3327         struct hlist_node *node;
3328         i40e_status aq_ret = 0;
3329         int i, ret;
3330 
3331         if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
3332                 aq_ret = I40E_ERR_PARAM;
3333                 goto err;
3334         }
3335 
3336         if (!vf->adq_enabled) {
3337                 dev_info(&pf->pdev->dev,
3338                          "VF %d: ADq not enabled, can't apply cloud filter\n",
3339                          vf->vf_id);
3340                 aq_ret = I40E_ERR_PARAM;
3341                 goto err;
3342         }
3343 
3344         if (i40e_validate_cloud_filter(vf, vcf)) {
3345                 dev_info(&pf->pdev->dev,
3346                          "VF %d: Invalid input, can't apply cloud filter\n",
3347                          vf->vf_id);
3348                 aq_ret = I40E_ERR_PARAM;
3349                 goto err;
3350         }
3351 
3352         memset(&cfilter, 0, sizeof(cfilter));
3353         /* parse destination mac address */
3354         for (i = 0; i < ETH_ALEN; i++)
3355                 cfilter.dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i];
3356 
3357         /* parse source mac address */
3358         for (i = 0; i < ETH_ALEN; i++)
3359                 cfilter.src_mac[i] = mask.src_mac[i] & tcf.src_mac[i];
3360 
3361         cfilter.vlan_id = mask.vlan_id & tcf.vlan_id;
3362         cfilter.dst_port = mask.dst_port & tcf.dst_port;
3363         cfilter.src_port = mask.src_port & tcf.src_port;
3364 
3365         switch (vcf->flow_type) {
3366         case VIRTCHNL_TCP_V4_FLOW:
3367                 cfilter.n_proto = ETH_P_IP;
3368                 if (mask.dst_ip[0] & tcf.dst_ip[0])
3369                         memcpy(&cfilter.ip.v4.dst_ip, tcf.dst_ip,
3370                                ARRAY_SIZE(tcf.dst_ip));
3371                 else if (mask.src_ip[0] & tcf.dst_ip[0])
3372                         memcpy(&cfilter.ip.v4.src_ip, tcf.src_ip,
3373                                ARRAY_SIZE(tcf.dst_ip));
3374                 break;
3375         case VIRTCHNL_TCP_V6_FLOW:
3376                 cfilter.n_proto = ETH_P_IPV6;
3377                 if (mask.dst_ip[3] & tcf.dst_ip[3])
3378                         memcpy(&cfilter.ip.v6.dst_ip6, tcf.dst_ip,
3379                                sizeof(cfilter.ip.v6.dst_ip6));
3380                 if (mask.src_ip[3] & tcf.src_ip[3])
3381                         memcpy(&cfilter.ip.v6.src_ip6, tcf.src_ip,
3382                                sizeof(cfilter.ip.v6.src_ip6));
3383                 break;
3384         default:
3385                 /* TC filter can be configured based on different combinations
3386                  * and in this case IP is not a part of filter config
3387                  */
3388                 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n",
3389                          vf->vf_id);
3390         }
3391 
3392         /* get the vsi to which the tc belongs to */
3393         vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx];
3394         cfilter.seid = vsi->seid;
3395         cfilter.flags = vcf->field_flags;
3396 
3397         /* Deleting TC filter */
3398         if (tcf.dst_port)
3399                 ret = i40e_add_del_cloud_filter_big_buf(vsi, &cfilter, false);
3400         else
3401                 ret = i40e_add_del_cloud_filter(vsi, &cfilter, false);
3402         if (ret) {
3403                 dev_err(&pf->pdev->dev,
3404                         "VF %d: Failed to delete cloud filter, err %s aq_err %s\n",
3405                         vf->vf_id, i40e_stat_str(&pf->hw, ret),
3406                         i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
3407                 goto err;
3408         }
3409 
3410         hlist_for_each_entry_safe(cf, node,
3411                                   &vf->cloud_filter_list, cloud_node) {
3412                 if (cf->seid != cfilter.seid)
3413                         continue;
3414                 if (mask.dst_port)
3415                         if (cfilter.dst_port != cf->dst_port)
3416                                 continue;
3417                 if (mask.dst_mac[0])
3418                         if (!ether_addr_equal(cf->src_mac, cfilter.src_mac))
3419                                 continue;
3420                 /* for ipv4 data to be valid, only first byte of mask is set */
3421                 if (cfilter.n_proto == ETH_P_IP && mask.dst_ip[0])
3422                         if (memcmp(&cfilter.ip.v4.dst_ip, &cf->ip.v4.dst_ip,
3423                                    ARRAY_SIZE(tcf.dst_ip)))
3424                                 continue;
3425                 /* for ipv6, mask is set for all sixteen bytes (4 words) */
3426                 if (cfilter.n_proto == ETH_P_IPV6 && mask.dst_ip[3])
3427                         if (memcmp(&cfilter.ip.v6.dst_ip6, &cf->ip.v6.dst_ip6,
3428                                    sizeof(cfilter.ip.v6.src_ip6)))
3429                                 continue;
3430                 if (mask.vlan_id)
3431                         if (cfilter.vlan_id != cf->vlan_id)
3432                                 continue;
3433 
3434                 hlist_del(&cf->cloud_node);
3435                 kfree(cf);
3436                 vf->num_cloud_filters--;
3437         }
3438 
3439 err:
3440         return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DEL_CLOUD_FILTER,
3441                                        aq_ret);
3442 }
3443 
3444 /**
3445  * i40e_vc_add_cloud_filter
3446  * @vf: pointer to the VF info
3447  * @msg: pointer to the msg buffer
3448  *
3449  * This function adds a cloud filter programmed as TC filter for ADq
3450  **/
3451 static int i40e_vc_add_cloud_filter(struct i40e_vf *vf, u8 *msg)
3452 {
3453         struct virtchnl_filter *vcf = (struct virtchnl_filter *)msg;
3454         struct virtchnl_l4_spec mask = vcf->mask.tcp_spec;
3455         struct virtchnl_l4_spec tcf = vcf->data.tcp_spec;
3456         struct i40e_cloud_filter *cfilter = NULL;
3457         struct i40e_pf *pf = vf->pf;
3458         struct i40e_vsi *vsi = NULL;
3459         i40e_status aq_ret = 0;
3460         int i, ret;
3461 
3462         if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
3463                 aq_ret = I40E_ERR_PARAM;
3464                 goto err_out;
3465         }
3466 
3467         if (!vf->adq_enabled) {
3468                 dev_info(&pf->pdev->dev,
3469                          "VF %d: ADq is not enabled, can't apply cloud filter\n",
3470                          vf->vf_id);
3471                 aq_ret = I40E_ERR_PARAM;
3472                 goto err_out;
3473         }
3474 
3475         if (i40e_validate_cloud_filter(vf, vcf)) {
3476                 dev_info(&pf->pdev->dev,
3477                          "VF %d: Invalid input/s, can't apply cloud filter\n",
3478                          vf->vf_id);
3479                 aq_ret = I40E_ERR_PARAM;
3480                 goto err_out;
3481         }
3482 
3483         cfilter = kzalloc(sizeof(*cfilter), GFP_KERNEL);
3484         if (!cfilter)
3485                 return -ENOMEM;
3486 
3487         /* parse destination mac address */
3488         for (i = 0; i < ETH_ALEN; i++)
3489                 cfilter->dst_mac[i] = mask.dst_mac[i] & tcf.dst_mac[i];
3490 
3491         /* parse source mac address */
3492         for (i = 0; i < ETH_ALEN; i++)
3493                 cfilter->src_mac[i] = mask.src_mac[i] & tcf.src_mac[i];
3494 
3495         cfilter->vlan_id = mask.vlan_id & tcf.vlan_id;
3496         cfilter->dst_port = mask.dst_port & tcf.dst_port;
3497         cfilter->src_port = mask.src_port & tcf.src_port;
3498 
3499         switch (vcf->flow_type) {
3500         case VIRTCHNL_TCP_V4_FLOW:
3501                 cfilter->n_proto = ETH_P_IP;
3502                 if (mask.dst_ip[0] & tcf.dst_ip[0])
3503                         memcpy(&cfilter->ip.v4.dst_ip, tcf.dst_ip,
3504                                ARRAY_SIZE(tcf.dst_ip));
3505                 else if (mask.src_ip[0] & tcf.dst_ip[0])
3506                         memcpy(&cfilter->ip.v4.src_ip, tcf.src_ip,
3507                                ARRAY_SIZE(tcf.dst_ip));
3508                 break;
3509         case VIRTCHNL_TCP_V6_FLOW:
3510                 cfilter->n_proto = ETH_P_IPV6;
3511                 if (mask.dst_ip[3] & tcf.dst_ip[3])
3512                         memcpy(&cfilter->ip.v6.dst_ip6, tcf.dst_ip,
3513                                sizeof(cfilter->ip.v6.dst_ip6));
3514                 if (mask.src_ip[3] & tcf.src_ip[3])
3515                         memcpy(&cfilter->ip.v6.src_ip6, tcf.src_ip,
3516                                sizeof(cfilter->ip.v6.src_ip6));
3517                 break;
3518         default:
3519                 /* TC filter can be configured based on different combinations
3520                  * and in this case IP is not a part of filter config
3521                  */
3522                 dev_info(&pf->pdev->dev, "VF %d: Flow type not configured\n",
3523                          vf->vf_id);
3524         }
3525 
3526         /* get the VSI to which the TC belongs to */
3527         vsi = pf->vsi[vf->ch[vcf->action_meta].vsi_idx];
3528         cfilter->seid = vsi->seid;
3529         cfilter->flags = vcf->field_flags;
3530 
3531         /* Adding cloud filter programmed as TC filter */
3532         if (tcf.dst_port)
3533                 ret = i40e_add_del_cloud_filter_big_buf(vsi, cfilter, true);
3534         else
3535                 ret = i40e_add_del_cloud_filter(vsi, cfilter, true);
3536         if (ret) {
3537                 dev_err(&pf->pdev->dev,
3538                         "VF %d: Failed to add cloud filter, err %s aq_err %s\n",
3539                         vf->vf_id, i40e_stat_str(&pf->hw, ret),
3540                         i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
3541                 goto err_free;
3542         }
3543 
3544         INIT_HLIST_NODE(&cfilter->cloud_node);
3545         hlist_add_head(&cfilter->cloud_node, &vf->cloud_filter_list);
3546         /* release the pointer passing it to the collection */
3547         cfilter = NULL;
3548         vf->num_cloud_filters++;
3549 err_free:
3550         kfree(cfilter);
3551 err_out:
3552         return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ADD_CLOUD_FILTER,
3553                                        aq_ret);
3554 }
3555 
3556 /**
3557  * i40e_vc_add_qch_msg: Add queue channel and enable ADq
3558  * @vf: pointer to the VF info
3559  * @msg: pointer to the msg buffer
3560  **/
3561 static int i40e_vc_add_qch_msg(struct i40e_vf *vf, u8 *msg)
3562 {
3563         struct virtchnl_tc_info *tci =
3564                 (struct virtchnl_tc_info *)msg;
3565         struct i40e_pf *pf = vf->pf;
3566         struct i40e_link_status *ls = &pf->hw.phy.link_info;
3567         int i, adq_request_qps = 0;
3568         i40e_status aq_ret = 0;
3569         u64 speed = 0;
3570 
3571         if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
3572                 aq_ret = I40E_ERR_PARAM;
3573                 goto err;
3574         }
3575 
3576         /* ADq cannot be applied if spoof check is ON */
3577         if (vf->spoofchk) {
3578                 dev_err(&pf->pdev->dev,
3579                         "Spoof check is ON, turn it OFF to enable ADq\n");
3580                 aq_ret = I40E_ERR_PARAM;
3581                 goto err;
3582         }
3583 
3584         if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADQ)) {
3585                 dev_err(&pf->pdev->dev,
3586                         "VF %d attempting to enable ADq, but hasn't properly negotiated that capability\n",
3587                         vf->vf_id);
3588                 aq_ret = I40E_ERR_PARAM;
3589                 goto err;
3590         }
3591 
3592         /* max number of traffic classes for VF currently capped at 4 */
3593         if (!tci->num_tc || tci->num_tc > I40E_MAX_VF_VSI) {
3594                 dev_err(&pf->pdev->dev,
3595                         "VF %d trying to set %u TCs, valid range 1-%u TCs per VF\n",
3596                         vf->vf_id, tci->num_tc, I40E_MAX_VF_VSI);
3597                 aq_ret = I40E_ERR_PARAM;
3598                 goto err;
3599         }
3600 
3601         /* validate queues for each TC */
3602         for (i = 0; i < tci->num_tc; i++)
3603                 if (!tci->list[i].count ||
3604                     tci->list[i].count > I40E_DEFAULT_QUEUES_PER_VF) {
3605                         dev_err(&pf->pdev->dev,
3606                                 "VF %d: TC %d trying to set %u queues, valid range 1-%u queues per TC\n",
3607                                 vf->vf_id, i, tci->list[i].count,
3608                                 I40E_DEFAULT_QUEUES_PER_VF);
3609                         aq_ret = I40E_ERR_PARAM;
3610                         goto err;
3611                 }
3612 
3613         /* need Max VF queues but already have default number of queues */
3614         adq_request_qps = I40E_MAX_VF_QUEUES - I40E_DEFAULT_QUEUES_PER_VF;
3615 
3616         if (pf->queues_left < adq_request_qps) {
3617                 dev_err(&pf->pdev->dev,
3618                         "No queues left to allocate to VF %d\n",
3619                         vf->vf_id);
3620                 aq_ret = I40E_ERR_PARAM;
3621                 goto err;
3622         } else {
3623                 /* we need to allocate max VF queues to enable ADq so as to
3624                  * make sure ADq enabled VF always gets back queues when it
3625                  * goes through a reset.
3626                  */
3627                 vf->num_queue_pairs = I40E_MAX_VF_QUEUES;
3628         }
3629 
3630         /* get link speed in MB to validate rate limit */
3631         switch (ls->link_speed) {
3632         case VIRTCHNL_LINK_SPEED_100MB:
3633                 speed = SPEED_100;
3634                 break;
3635         case VIRTCHNL_LINK_SPEED_1GB:
3636                 speed = SPEED_1000;
3637                 break;
3638         case VIRTCHNL_LINK_SPEED_10GB:
3639                 speed = SPEED_10000;
3640                 break;
3641         case VIRTCHNL_LINK_SPEED_20GB:
3642                 speed = SPEED_20000;
3643                 break;
3644         case VIRTCHNL_LINK_SPEED_25GB:
3645                 speed = SPEED_25000;
3646                 break;
3647         case VIRTCHNL_LINK_SPEED_40GB:
3648                 speed = SPEED_40000;
3649                 break;
3650         default:
3651                 dev_err(&pf->pdev->dev,
3652                         "Cannot detect link speed\n");
3653                 aq_ret = I40E_ERR_PARAM;
3654                 goto err;
3655         }
3656 
3657         /* parse data from the queue channel info */
3658         vf->num_tc = tci->num_tc;
3659         for (i = 0; i < vf->num_tc; i++) {
3660                 if (tci->list[i].max_tx_rate) {
3661                         if (tci->list[i].max_tx_rate > speed) {
3662                                 dev_err(&pf->pdev->dev,
3663                                         "Invalid max tx rate %llu specified for VF %d.",
3664                                         tci->list[i].max_tx_rate,
3665                                         vf->vf_id);
3666                                 aq_ret = I40E_ERR_PARAM;
3667                                 goto err;
3668                         } else {
3669                                 vf->ch[i].max_tx_rate =
3670                                         tci->list[i].max_tx_rate;
3671                         }
3672                 }
3673                 vf->ch[i].num_qps = tci->list[i].count;
3674         }
3675 
3676         /* set this flag only after making sure all inputs are sane */
3677         vf->adq_enabled = true;
3678         /* num_req_queues is set when user changes number of queues via ethtool
3679          * and this causes issue for default VSI(which depends on this variable)
3680          * when ADq is enabled, hence reset it.
3681          */
3682         vf->num_req_queues = 0;
3683 
3684         /* reset the VF in order to allocate resources */
3685         i40e_vc_notify_vf_reset(vf);
3686         i40e_reset_vf(vf, false);
3687 
3688         return I40E_SUCCESS;
3689 
3690         /* send the response to the VF */
3691 err:
3692         return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_ENABLE_CHANNELS,
3693                                        aq_ret);
3694 }
3695 
3696 /**
3697  * i40e_vc_del_qch_msg
3698  * @vf: pointer to the VF info
3699  * @msg: pointer to the msg buffer
3700  **/
3701 static int i40e_vc_del_qch_msg(struct i40e_vf *vf, u8 *msg)
3702 {
3703         struct i40e_pf *pf = vf->pf;
3704         i40e_status aq_ret = 0;
3705 
3706         if (!test_bit(I40E_VF_STATE_ACTIVE, &vf->vf_states)) {
3707                 aq_ret = I40E_ERR_PARAM;
3708                 goto err;
3709         }
3710 
3711         if (vf->adq_enabled) {
3712                 i40e_del_all_cloud_filters(vf);
3713                 i40e_del_qch(vf);
3714                 vf->adq_enabled = false;
3715                 vf->num_tc = 0;
3716                 dev_info(&pf->pdev->dev,
3717                          "Deleting Queue Channels and cloud filters for ADq on VF %d\n",
3718                          vf->vf_id);
3719         } else {
3720                 dev_info(&pf->pdev->dev, "VF %d trying to delete queue channels but ADq isn't enabled\n",
3721                          vf->vf_id);
3722                 aq_ret = I40E_ERR_PARAM;
3723         }
3724 
3725         /* reset the VF in order to allocate resources */
3726         i40e_vc_notify_vf_reset(vf);
3727         i40e_reset_vf(vf, false);
3728 
3729         return I40E_SUCCESS;
3730 
3731 err:
3732         return i40e_vc_send_resp_to_vf(vf, VIRTCHNL_OP_DISABLE_CHANNELS,
3733                                        aq_ret);
3734 }
3735 
3736 /**
3737  * i40e_vc_process_vf_msg
3738  * @pf: pointer to the PF structure
3739  * @vf_id: source VF id
3740  * @v_opcode: operation code
3741  * @v_retval: unused return value code
3742  * @msg: pointer to the msg buffer
3743  * @msglen: msg length
3744  *
3745  * called from the common aeq/arq handler to
3746  * process request from VF
3747  **/
3748 int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode,
3749                            u32 __always_unused v_retval, u8 *msg, u16 msglen)
3750 {
3751         struct i40e_hw *hw = &pf->hw;
3752         int local_vf_id = vf_id - (s16)hw->func_caps.vf_base_id;
3753         struct i40e_vf *vf;
3754         int ret;
3755 
3756         pf->vf_aq_requests++;
3757         if (local_vf_id < 0 || local_vf_id >= pf->num_alloc_vfs)
3758                 return -EINVAL;
3759         vf = &(pf->vf[local_vf_id]);
3760 
3761         /* Check if VF is disabled. */
3762         if (test_bit(I40E_VF_STATE_DISABLED, &vf->vf_states))
3763                 return I40E_ERR_PARAM;
3764 
3765         /* perform basic checks on the msg */
3766         ret = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen);
3767 
3768         if (ret) {
3769                 i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM);
3770                 dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n",
3771                         local_vf_id, v_opcode, msglen);
3772                 switch (ret) {
3773                 case VIRTCHNL_STATUS_ERR_PARAM:
3774                         return -EPERM;
3775                 default:
3776                         return -EINVAL;
3777                 }
3778         }
3779 
3780         switch (v_opcode) {
3781         case VIRTCHNL_OP_VERSION:
3782                 ret = i40e_vc_get_version_msg(vf, msg);
3783                 break;
3784         case VIRTCHNL_OP_GET_VF_RESOURCES:
3785                 ret = i40e_vc_get_vf_resources_msg(vf, msg);
3786                 i40e_vc_notify_vf_link_state(vf);
3787                 break;
3788         case VIRTCHNL_OP_RESET_VF:
3789                 i40e_vc_reset_vf_msg(vf);
3790                 ret = 0;
3791                 break;
3792         case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
3793                 ret = i40e_vc_config_promiscuous_mode_msg(vf, msg);
3794                 break;
3795         case VIRTCHNL_OP_CONFIG_VSI_QUEUES:
3796                 ret = i40e_vc_config_queues_msg(vf, msg);
3797                 break;
3798         case VIRTCHNL_OP_CONFIG_IRQ_MAP:
3799                 ret = i40e_vc_config_irq_map_msg(vf, msg);
3800                 break;
3801         case VIRTCHNL_OP_ENABLE_QUEUES:
3802                 ret = i40e_vc_enable_queues_msg(vf, msg);
3803                 i40e_vc_notify_vf_link_state(vf);
3804                 break;
3805         case VIRTCHNL_OP_DISABLE_QUEUES:
3806                 ret = i40e_vc_disable_queues_msg(vf, msg);
3807                 break;
3808         case VIRTCHNL_OP_ADD_ETH_ADDR:
3809                 ret = i40e_vc_add_mac_addr_msg(vf, msg);
3810                 break;
3811         case VIRTCHNL_OP_DEL_ETH_ADDR:
3812                 ret = i40e_vc_del_mac_addr_msg(vf, msg);
3813                 break;
3814         case VIRTCHNL_OP_ADD_VLAN:
3815                 ret = i40e_vc_add_vlan_msg(vf, msg);
3816                 break;
3817         case VIRTCHNL_OP_DEL_VLAN:
3818                 ret = i40e_vc_remove_vlan_msg(vf, msg);
3819                 break;
3820         case VIRTCHNL_OP_GET_STATS:
3821                 ret = i40e_vc_get_stats_msg(vf, msg);
3822                 break;
3823         case VIRTCHNL_OP_IWARP:
3824                 ret = i40e_vc_iwarp_msg(vf, msg, msglen);
3825                 break;
3826         case VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP:
3827                 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, true);
3828                 break;
3829         case VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP:
3830                 ret = i40e_vc_iwarp_qvmap_msg(vf, msg, false);
3831                 break;
3832         case VIRTCHNL_OP_CONFIG_RSS_KEY:
3833                 ret = i40e_vc_config_rss_key(vf, msg);
3834                 break;
3835         case VIRTCHNL_OP_CONFIG_RSS_LUT:
3836                 ret = i40e_vc_config_rss_lut(vf, msg);
3837                 break;
3838         case VIRTCHNL_OP_GET_RSS_HENA_CAPS:
3839                 ret = i40e_vc_get_rss_hena(vf, msg);
3840                 break;
3841         case VIRTCHNL_OP_SET_RSS_HENA:
3842                 ret = i40e_vc_set_rss_hena(vf, msg);
3843                 break;
3844         case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING:
3845                 ret = i40e_vc_enable_vlan_stripping(vf, msg);
3846                 break;
3847         case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING:
3848                 ret = i40e_vc_disable_vlan_stripping(vf, msg);
3849                 break;
3850         case VIRTCHNL_OP_REQUEST_QUEUES:
3851                 ret = i40e_vc_request_queues_msg(vf, msg);
3852                 break;
3853         case VIRTCHNL_OP_ENABLE_CHANNELS:
3854                 ret = i40e_vc_add_qch_msg(vf, msg);
3855                 break;
3856         case VIRTCHNL_OP_DISABLE_CHANNELS:
3857                 ret = i40e_vc_del_qch_msg(vf, msg);
3858                 break;
3859         case VIRTCHNL_OP_ADD_CLOUD_FILTER:
3860                 ret = i40e_vc_add_cloud_filter(vf, msg);
3861                 break;
3862         case VIRTCHNL_OP_DEL_CLOUD_FILTER:
3863                 ret = i40e_vc_del_cloud_filter(vf, msg);
3864                 break;
3865         case VIRTCHNL_OP_UNKNOWN:
3866         default:
3867                 dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n",
3868                         v_opcode, local_vf_id);
3869                 ret = i40e_vc_send_resp_to_vf(vf, v_opcode,
3870                                               I40E_ERR_NOT_IMPLEMENTED);
3871                 break;
3872         }
3873 
3874         return ret;
3875 }
3876 
3877 /**
3878  * i40e_vc_process_vflr_event
3879  * @pf: pointer to the PF structure
3880  *
3881  * called from the vlfr irq handler to
3882  * free up VF resources and state variables
3883  **/
3884 int i40e_vc_process_vflr_event(struct i40e_pf *pf)
3885 {
3886         struct i40e_hw *hw = &pf->hw;
3887         u32 reg, reg_idx, bit_idx;
3888         struct i40e_vf *vf;
3889         int vf_id;
3890 
3891         if (!test_bit(__I40E_VFLR_EVENT_PENDING, pf->state))
3892                 return 0;
3893 
3894         /* Re-enable the VFLR interrupt cause here, before looking for which
3895          * VF got reset. Otherwise, if another VF gets a reset while the
3896          * first one is being processed, that interrupt will be lost, and
3897          * that VF will be stuck in reset forever.
3898          */
3899         reg = rd32(hw, I40E_PFINT_ICR0_ENA);
3900         reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
3901         wr32(hw, I40E_PFINT_ICR0_ENA, reg);
3902         i40e_flush(hw);
3903 
3904         clear_bit(__I40E_VFLR_EVENT_PENDING, pf->state);
3905         for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {
3906                 reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
3907                 bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
3908                 /* read GLGEN_VFLRSTAT register to find out the flr VFs */
3909                 vf = &pf->vf[vf_id];
3910                 reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
3911                 if (reg & BIT(bit_idx))
3912                         /* i40e_reset_vf will clear the bit in GLGEN_VFLRSTAT */
3913                         i40e_reset_vf(vf, true);
3914         }
3915 
3916         return 0;
3917 }
3918 
3919 /**
3920  * i40e_validate_vf
3921  * @pf: the physical function
3922  * @vf_id: VF identifier
3923  *
3924  * Check that the VF is enabled and the VSI exists.
3925  *
3926  * Returns 0 on success, negative on failure
3927  **/
3928 static int i40e_validate_vf(struct i40e_pf *pf, int vf_id)
3929 {
3930         struct i40e_vsi *vsi;
3931         struct i40e_vf *vf;
3932         int ret = 0;
3933 
3934         if (vf_id >= pf->num_alloc_vfs) {
3935                 dev_err(&pf->pdev->dev,
3936                         "Invalid VF Identifier %d\n", vf_id);
3937                 ret = -EINVAL;
3938                 goto err_out;
3939         }
3940         vf = &pf->vf[vf_id];
3941         vsi = i40e_find_vsi_from_id(pf, vf->lan_vsi_id);
3942         if (!vsi)
3943                 ret = -EINVAL;
3944 err_out:
3945         return ret;
3946 }
3947 
3948 /**
3949  * i40e_ndo_set_vf_mac
3950  * @netdev: network interface device structure
3951  * @vf_id: VF identifier
3952  * @mac: mac address
3953  *
3954  * program VF mac address
3955  **/
3956 int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
3957 {
3958         struct i40e_netdev_priv *np = netdev_priv(netdev);
3959         struct i40e_vsi *vsi = np->vsi;
3960         struct i40e_pf *pf = vsi->back;
3961         struct i40e_mac_filter *f;
3962         struct i40e_vf *vf;
3963         int ret = 0;
3964         struct hlist_node *h;
3965         int bkt;
3966         u8 i;
3967 
3968         if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
3969                 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
3970                 return -EAGAIN;
3971         }
3972 
3973         /* validate the request */
3974         ret = i40e_validate_vf(pf, vf_id);
3975         if (ret)
3976                 goto error_param;
3977 
3978         vf = &pf->vf[vf_id];
3979         vsi = pf->vsi[vf->lan_vsi_idx];
3980 
3981         /* When the VF is resetting wait until it is done.
3982          * It can take up to 200 milliseconds,
3983          * but wait for up to 300 milliseconds to be safe.
3984          * If the VF is indeed in reset, the vsi pointer has
3985          * to show on the newly loaded vsi under pf->vsi[id].
3986          */
3987         for (i = 0; i < 15; i++) {
3988                 if (test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
3989                         if (i > 0)
3990                                 vsi = pf->vsi[vf->lan_vsi_idx];
3991                         break;
3992                 }
3993                 msleep(20);
3994         }
3995         if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
3996                 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
3997                         vf_id);
3998                 ret = -EAGAIN;
3999                 goto error_param;
4000         }
4001 
4002         if (is_multicast_ether_addr(mac)) {
4003                 dev_err(&pf->pdev->dev,
4004                         "Invalid Ethernet address %pM for VF %d\n", mac, vf_id);
4005                 ret = -EINVAL;
4006                 goto error_param;
4007         }
4008 
4009         /* Lock once because below invoked function add/del_filter requires
4010          * mac_filter_hash_lock to be held
4011          */
4012         spin_lock_bh(&vsi->mac_filter_hash_lock);
4013 
4014         /* delete the temporary mac address */
4015         if (!is_zero_ether_addr(vf->default_lan_addr.addr))
4016                 i40e_del_mac_filter(vsi, vf->default_lan_addr.addr);
4017 
4018         /* Delete all the filters for this VSI - we're going to kill it
4019          * anyway.
4020          */
4021         hash_for_each_safe(vsi->mac_filter_hash, bkt, h, f, hlist)
4022                 __i40e_del_filter(vsi, f);
4023 
4024         spin_unlock_bh(&vsi->mac_filter_hash_lock);
4025 
4026         /* program mac filter */
4027         if (i40e_sync_vsi_filters(vsi)) {
4028                 dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
4029                 ret = -EIO;
4030                 goto error_param;
4031         }
4032         ether_addr_copy(vf->default_lan_addr.addr, mac);
4033 
4034         if (is_zero_ether_addr(mac)) {
4035                 vf->pf_set_mac = false;
4036                 dev_info(&pf->pdev->dev, "Removing MAC on VF %d\n", vf_id);
4037         } else {
4038                 vf->pf_set_mac = true;
4039                 dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n",
4040                          mac, vf_id);
4041         }
4042 
4043         /* Force the VF interface down so it has to bring up with new MAC
4044          * address
4045          */
4046         i40e_vc_disable_vf(vf);
4047         dev_info(&pf->pdev->dev, "Bring down and up the VF interface to make this change effective.\n");
4048 
4049 error_param:
4050         clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4051         return ret;
4052 }
4053 
4054 /**
4055  * i40e_vsi_has_vlans - True if VSI has configured VLANs
4056  * @vsi: pointer to the vsi
4057  *
4058  * Check if a VSI has configured any VLANs. False if we have a port VLAN or if
4059  * we have no configured VLANs. Do not call while holding the
4060  * mac_filter_hash_lock.
4061  */
4062 static bool i40e_vsi_has_vlans(struct i40e_vsi *vsi)
4063 {
4064         bool have_vlans;
4065 
4066         /* If we have a port VLAN, then the VSI cannot have any VLANs
4067          * configured, as all MAC/VLAN filters will be assigned to the PVID.
4068          */
4069         if (vsi->info.pvid)
4070                 return false;
4071 
4072         /* Since we don't have a PVID, we know that if the device is in VLAN
4073          * mode it must be because of a VLAN filter configured on this VSI.
4074          */
4075         spin_lock_bh(&vsi->mac_filter_hash_lock);
4076         have_vlans = i40e_is_vsi_in_vlan(vsi);
4077         spin_unlock_bh(&vsi->mac_filter_hash_lock);
4078 
4079         return have_vlans;
4080 }
4081 
4082 /**
4083  * i40e_ndo_set_vf_port_vlan
4084  * @netdev: network interface device structure
4085  * @vf_id: VF identifier
4086  * @vlan_id: mac address
4087  * @qos: priority setting
4088  * @vlan_proto: vlan protocol
4089  *
4090  * program VF vlan id and/or qos
4091  **/
4092 int i40e_ndo_set_vf_port_vlan(struct net_device *netdev, int vf_id,
4093                               u16 vlan_id, u8 qos, __be16 vlan_proto)
4094 {
4095         u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT);
4096         struct i40e_netdev_priv *np = netdev_priv(netdev);
4097         bool allmulti = false, alluni = false;
4098         struct i40e_pf *pf = np->vsi->back;
4099         struct i40e_vsi *vsi;
4100         struct i40e_vf *vf;
4101         int ret = 0;
4102 
4103         if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4104                 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4105                 return -EAGAIN;
4106         }
4107 
4108         /* validate the request */
4109         ret = i40e_validate_vf(pf, vf_id);
4110         if (ret)
4111                 goto error_pvid;
4112 
4113         if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
4114                 dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
4115                 ret = -EINVAL;
4116                 goto error_pvid;
4117         }
4118 
4119         if (vlan_proto != htons(ETH_P_8021Q)) {
4120                 dev_err(&pf->pdev->dev, "VF VLAN protocol is not supported\n");
4121                 ret = -EPROTONOSUPPORT;
4122                 goto error_pvid;
4123         }
4124 
4125         vf = &pf->vf[vf_id];
4126         vsi = pf->vsi[vf->lan_vsi_idx];
4127         if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4128                 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
4129                         vf_id);
4130                 ret = -EAGAIN;
4131                 goto error_pvid;
4132         }
4133 
4134         if (le16_to_cpu(vsi->info.pvid) == vlanprio)
4135                 /* duplicate request, so just return success */
4136                 goto error_pvid;
4137 
4138         if (i40e_vsi_has_vlans(vsi)) {
4139                 dev_err(&pf->pdev->dev,
4140                         "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",
4141                         vf_id);
4142                 /* Administrator Error - knock the VF offline until he does
4143                  * the right thing by reconfiguring his network correctly
4144                  * and then reloading the VF driver.
4145                  */
4146                 i40e_vc_disable_vf(vf);
4147                 /* During reset the VF got a new VSI, so refresh the pointer. */
4148                 vsi = pf->vsi[vf->lan_vsi_idx];
4149         }
4150 
4151         /* Locked once because multiple functions below iterate list */
4152         spin_lock_bh(&vsi->mac_filter_hash_lock);
4153 
4154         /* Check for condition where there was already a port VLAN ID
4155          * filter set and now it is being deleted by setting it to zero.
4156          * Additionally check for the condition where there was a port
4157          * VLAN but now there is a new and different port VLAN being set.
4158          * Before deleting all the old VLAN filters we must add new ones
4159          * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our
4160          * MAC addresses deleted.
4161          */
4162         if ((!(vlan_id || qos) ||
4163             vlanprio != le16_to_cpu(vsi->info.pvid)) &&
4164             vsi->info.pvid) {
4165                 ret = i40e_add_vlan_all_mac(vsi, I40E_VLAN_ANY);
4166                 if (ret) {
4167                         dev_info(&vsi->back->pdev->dev,
4168                                  "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
4169                                  vsi->back->hw.aq.asq_last_status);
4170                         spin_unlock_bh(&vsi->mac_filter_hash_lock);
4171                         goto error_pvid;
4172                 }
4173         }
4174 
4175         if (vsi->info.pvid) {
4176                 /* remove all filters on the old VLAN */
4177                 i40e_rm_vlan_all_mac(vsi, (le16_to_cpu(vsi->info.pvid) &
4178                                            VLAN_VID_MASK));
4179         }
4180 
4181         spin_unlock_bh(&vsi->mac_filter_hash_lock);
4182 
4183         /* disable promisc modes in case they were enabled */
4184         ret = i40e_config_vf_promiscuous_mode(vf, vf->lan_vsi_id,
4185                                               allmulti, alluni);
4186         if (ret) {
4187                 dev_err(&pf->pdev->dev, "Unable to config VF promiscuous mode\n");
4188                 goto error_pvid;
4189         }
4190 
4191         if (vlan_id || qos)
4192                 ret = i40e_vsi_add_pvid(vsi, vlanprio);
4193         else
4194                 i40e_vsi_remove_pvid(vsi);
4195         spin_lock_bh(&vsi->mac_filter_hash_lock);
4196 
4197         if (vlan_id) {
4198                 dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
4199                          vlan_id, qos, vf_id);
4200 
4201                 /* add new VLAN filter for each MAC */
4202                 ret = i40e_add_vlan_all_mac(vsi, vlan_id);
4203                 if (ret) {
4204                         dev_info(&vsi->back->pdev->dev,
4205                                  "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
4206                                  vsi->back->hw.aq.asq_last_status);
4207                         spin_unlock_bh(&vsi->mac_filter_hash_lock);
4208                         goto error_pvid;
4209                 }
4210 
4211                 /* remove the previously added non-VLAN MAC filters */
4212                 i40e_rm_vlan_all_mac(vsi, I40E_VLAN_ANY);
4213         }
4214 
4215         spin_unlock_bh(&vsi->mac_filter_hash_lock);
4216 
4217         if (test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states))
4218                 alluni = true;
4219 
4220         if (test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))
4221                 allmulti = true;
4222 
4223         /* Schedule the worker thread to take care of applying changes */
4224         i40e_service_event_schedule(vsi->back);
4225 
4226         if (ret) {
4227                 dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
4228                 goto error_pvid;
4229         }
4230 
4231         /* The Port VLAN needs to be saved across resets the same as the
4232          * default LAN MAC address.
4233          */
4234         vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);
4235 
4236         ret = i40e_config_vf_promiscuous_mode(vf, vsi->id, allmulti, alluni);
4237         if (ret) {
4238                 dev_err(&pf->pdev->dev, "Unable to config vf promiscuous mode\n");
4239                 goto error_pvid;
4240         }
4241 
4242         ret = 0;
4243 
4244 error_pvid:
4245         clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4246         return ret;
4247 }
4248 
4249 /**
4250  * i40e_ndo_set_vf_bw
4251  * @netdev: network interface device structure
4252  * @vf_id: VF identifier
4253  * @min_tx_rate: Minimum Tx rate
4254  * @max_tx_rate: Maximum Tx rate
4255  *
4256  * configure VF Tx rate
4257  **/
4258 int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
4259                        int max_tx_rate)
4260 {
4261         struct i40e_netdev_priv *np = netdev_priv(netdev);
4262         struct i40e_pf *pf = np->vsi->back;
4263         struct i40e_vsi *vsi;
4264         struct i40e_vf *vf;
4265         int ret = 0;
4266 
4267         if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4268                 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4269                 return -EAGAIN;
4270         }
4271 
4272         /* validate the request */
4273         ret = i40e_validate_vf(pf, vf_id);
4274         if (ret)
4275                 goto error;
4276 
4277         if (min_tx_rate) {
4278                 dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n",
4279                         min_tx_rate, vf_id);
4280                 ret = -EINVAL;
4281                 goto error;
4282         }
4283 
4284         vf = &pf->vf[vf_id];
4285         vsi = pf->vsi[vf->lan_vsi_idx];
4286         if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4287                 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
4288                         vf_id);
4289                 ret = -EAGAIN;
4290                 goto error;
4291         }
4292 
4293         ret = i40e_set_bw_limit(vsi, vsi->seid, max_tx_rate);
4294         if (ret)
4295                 goto error;
4296 
4297         vf->tx_rate = max_tx_rate;
4298 error:
4299         clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4300         return ret;
4301 }
4302 
4303 /**
4304  * i40e_ndo_get_vf_config
4305  * @netdev: network interface device structure
4306  * @vf_id: VF identifier
4307  * @ivi: VF configuration structure
4308  *
4309  * return VF configuration
4310  **/
4311 int i40e_ndo_get_vf_config(struct net_device *netdev,
4312                            int vf_id, struct ifla_vf_info *ivi)
4313 {
4314         struct i40e_netdev_priv *np = netdev_priv(netdev);
4315         struct i40e_vsi *vsi = np->vsi;
4316         struct i40e_pf *pf = vsi->back;
4317         struct i40e_vf *vf;
4318         int ret = 0;
4319 
4320         if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4321                 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4322                 return -EAGAIN;
4323         }
4324 
4325         /* validate the request */
4326         ret = i40e_validate_vf(pf, vf_id);
4327         if (ret)
4328                 goto error_param;
4329 
4330         vf = &pf->vf[vf_id];
4331         /* first vsi is always the LAN vsi */
4332         vsi = pf->vsi[vf->lan_vsi_idx];
4333         if (!vsi) {
4334                 ret = -ENOENT;
4335                 goto error_param;
4336         }
4337 
4338         ivi->vf = vf_id;
4339 
4340         ether_addr_copy(ivi->mac, vf->default_lan_addr.addr);
4341 
4342         ivi->max_tx_rate = vf->tx_rate;
4343         ivi->min_tx_rate = 0;
4344         ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK;
4345         ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >>
4346                    I40E_VLAN_PRIORITY_SHIFT;
4347         if (vf->link_forced == false)
4348                 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
4349         else if (vf->link_up == true)
4350                 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
4351         else
4352                 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
4353         ivi->spoofchk = vf->spoofchk;
4354         ivi->trusted = vf->trusted;
4355         ret = 0;
4356 
4357 error_param:
4358         clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4359         return ret;
4360 }
4361 
4362 /**
4363  * i40e_ndo_set_vf_link_state
4364  * @netdev: network interface device structure
4365  * @vf_id: VF identifier
4366  * @link: required link state
4367  *
4368  * Set the link state of a specified VF, regardless of physical link state
4369  **/
4370 int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
4371 {
4372         struct i40e_netdev_priv *np = netdev_priv(netdev);
4373         struct i40e_pf *pf = np->vsi->back;
4374         struct virtchnl_pf_event pfe;
4375         struct i40e_hw *hw = &pf->hw;
4376         struct i40e_vf *vf;
4377         int abs_vf_id;
4378         int ret = 0;
4379 
4380         if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4381                 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4382                 return -EAGAIN;
4383         }
4384 
4385         /* validate the request */
4386         if (vf_id >= pf->num_alloc_vfs) {
4387                 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
4388                 ret = -EINVAL;
4389                 goto error_out;
4390         }
4391 
4392         vf = &pf->vf[vf_id];
4393         abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
4394 
4395         pfe.event = VIRTCHNL_EVENT_LINK_CHANGE;
4396         pfe.severity = PF_EVENT_SEVERITY_INFO;
4397 
4398         switch (link) {
4399         case IFLA_VF_LINK_STATE_AUTO:
4400                 vf->link_forced = false;
4401                 pfe.event_data.link_event.link_status =
4402                         pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP;
4403                 pfe.event_data.link_event.link_speed =
4404                         (enum virtchnl_link_speed)
4405                         pf->hw.phy.link_info.link_speed;
4406                 break;
4407         case IFLA_VF_LINK_STATE_ENABLE:
4408                 vf->link_forced = true;
4409                 vf->link_up = true;
4410                 pfe.event_data.link_event.link_status = true;
4411                 pfe.event_data.link_event.link_speed = VIRTCHNL_LINK_SPEED_40GB;
4412                 break;
4413         case IFLA_VF_LINK_STATE_DISABLE:
4414                 vf->link_forced = true;
4415                 vf->link_up = false;
4416                 pfe.event_data.link_event.link_status = false;
4417                 pfe.event_data.link_event.link_speed = 0;
4418                 break;
4419         default:
4420                 ret = -EINVAL;
4421                 goto error_out;
4422         }
4423         /* Notify the VF of its new link state */
4424         i40e_aq_send_msg_to_vf(hw, abs_vf_id, VIRTCHNL_OP_EVENT,
4425                                0, (u8 *)&pfe, sizeof(pfe), NULL);
4426 
4427 error_out:
4428         clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4429         return ret;
4430 }
4431 
4432 /**
4433  * i40e_ndo_set_vf_spoofchk
4434  * @netdev: network interface device structure
4435  * @vf_id: VF identifier
4436  * @enable: flag to enable or disable feature
4437  *
4438  * Enable or disable VF spoof checking
4439  **/
4440 int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)
4441 {
4442         struct i40e_netdev_priv *np = netdev_priv(netdev);
4443         struct i40e_vsi *vsi = np->vsi;
4444         struct i40e_pf *pf = vsi->back;
4445         struct i40e_vsi_context ctxt;
4446         struct i40e_hw *hw = &pf->hw;
4447         struct i40e_vf *vf;
4448         int ret = 0;
4449 
4450         if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4451                 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4452                 return -EAGAIN;
4453         }
4454 
4455         /* validate the request */
4456         if (vf_id >= pf->num_alloc_vfs) {
4457                 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
4458                 ret = -EINVAL;
4459                 goto out;
4460         }
4461 
4462         vf = &(pf->vf[vf_id]);
4463         if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
4464                 dev_err(&pf->pdev->dev, "VF %d still in reset. Try again.\n",
4465                         vf_id);
4466                 ret = -EAGAIN;
4467                 goto out;
4468         }
4469 
4470         if (enable == vf->spoofchk)
4471                 goto out;
4472 
4473         vf->spoofchk = enable;
4474         memset(&ctxt, 0, sizeof(ctxt));
4475         ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid;
4476         ctxt.pf_num = pf->hw.pf_id;
4477         ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID);
4478         if (enable)
4479                 ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK |
4480                                         I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK);
4481         ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
4482         if (ret) {
4483                 dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n",
4484                         ret);
4485                 ret = -EIO;
4486         }
4487 out:
4488         clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4489         return ret;
4490 }
4491 
4492 /**
4493  * i40e_ndo_set_vf_trust
4494  * @netdev: network interface device structure of the pf
4495  * @vf_id: VF identifier
4496  * @setting: trust setting
4497  *
4498  * Enable or disable VF trust setting
4499  **/
4500 int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting)
4501 {
4502         struct i40e_netdev_priv *np = netdev_priv(netdev);
4503         struct i40e_pf *pf = np->vsi->back;
4504         struct i40e_vf *vf;
4505         int ret = 0;
4506 
4507         if (test_and_set_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state)) {
4508                 dev_warn(&pf->pdev->dev, "Unable to configure VFs, other operation is pending.\n");
4509                 return -EAGAIN;
4510         }
4511 
4512         /* validate the request */
4513         if (vf_id >= pf->num_alloc_vfs) {
4514                 dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
4515                 ret = -EINVAL;
4516                 goto out;
4517         }
4518 
4519         if (pf->flags & I40E_FLAG_MFP_ENABLED) {
4520                 dev_err(&pf->pdev->dev, "Trusted VF not supported in MFP mode.\n");
4521                 ret = -EINVAL;
4522                 goto out;
4523         }
4524 
4525         vf = &pf->vf[vf_id];
4526 
4527         if (setting == vf->trusted)
4528                 goto out;
4529 
4530         vf->trusted = setting;
4531         i40e_vc_disable_vf(vf);
4532         dev_info(&pf->pdev->dev, "VF %u is now %strusted\n",
4533                  vf_id, setting ? "" : "un");
4534 
4535         if (vf->adq_enabled) {
4536                 if (!vf->trusted) {
4537                         dev_info(&pf->pdev->dev,
4538                                  "VF %u no longer Trusted, deleting all cloud filters\n",
4539                                  vf_id);
4540                         i40e_del_all_cloud_filters(vf);
4541                 }
4542         }
4543 
4544 out:
4545         clear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);
4546         return ret;
4547 }
/* [<][>][^][v][top][bottom][index][help] */
root/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c

DEFINITIONS
