drivers/net/ethernet/intel/ice/ice_virtchnl.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright (C) 2022, Intel Corporation. */
   3
   4 #include "ice_virtchnl.h"
   5 #include "ice_vf_lib_private.h"
   6 #include "ice.h"
   7 #include "ice_base.h"
   8 #include "ice_lib.h"
   9 #include "ice_fltr.h"
  10 #include "ice_virtchnl_allowlist.h"
  11 #include "ice_vf_vsi_vlan_ops.h"
  12 #include "ice_vlan.h"
  13 #include "ice_flex_pipe.h"
  14 #include "ice_dcb_lib.h"
  15
  16 #define FIELD_SELECTOR(proto_hdr_field) \
  17                 BIT((proto_hdr_field) & PROTO_HDR_FIELD_MASK)
  18
  19 struct ice_vc_hdr_match_type {
  20         u32 vc_hdr;     /* virtchnl headers (VIRTCHNL_PROTO_HDR_XXX) */
  21         u32 ice_hdr;    /* ice headers (ICE_FLOW_SEG_HDR_XXX) */
  22 };
  23
  24 static const struct ice_vc_hdr_match_type ice_vc_hdr_list[] = {
  25         {VIRTCHNL_PROTO_HDR_NONE,       ICE_FLOW_SEG_HDR_NONE},
  26         {VIRTCHNL_PROTO_HDR_ETH,        ICE_FLOW_SEG_HDR_ETH},
  27         {VIRTCHNL_PROTO_HDR_S_VLAN,     ICE_FLOW_SEG_HDR_VLAN},
  28         {VIRTCHNL_PROTO_HDR_C_VLAN,     ICE_FLOW_SEG_HDR_VLAN},
  29         {VIRTCHNL_PROTO_HDR_IPV4,       ICE_FLOW_SEG_HDR_IPV4 |
  30                                         ICE_FLOW_SEG_HDR_IPV_OTHER},
  31         {VIRTCHNL_PROTO_HDR_IPV6,       ICE_FLOW_SEG_HDR_IPV6 |
  32                                         ICE_FLOW_SEG_HDR_IPV_OTHER},
  33         {VIRTCHNL_PROTO_HDR_TCP,        ICE_FLOW_SEG_HDR_TCP},
  34         {VIRTCHNL_PROTO_HDR_UDP,        ICE_FLOW_SEG_HDR_UDP},
  35         {VIRTCHNL_PROTO_HDR_SCTP,       ICE_FLOW_SEG_HDR_SCTP},
  36         {VIRTCHNL_PROTO_HDR_PPPOE,      ICE_FLOW_SEG_HDR_PPPOE},
  37         {VIRTCHNL_PROTO_HDR_GTPU_IP,    ICE_FLOW_SEG_HDR_GTPU_IP},
  38         {VIRTCHNL_PROTO_HDR_GTPU_EH,    ICE_FLOW_SEG_HDR_GTPU_EH},
  39         {VIRTCHNL_PROTO_HDR_GTPU_EH_PDU_DWN,
  40                                         ICE_FLOW_SEG_HDR_GTPU_DWN},
  41         {VIRTCHNL_PROTO_HDR_GTPU_EH_PDU_UP,
  42                                         ICE_FLOW_SEG_HDR_GTPU_UP},
  43         {VIRTCHNL_PROTO_HDR_L2TPV3,     ICE_FLOW_SEG_HDR_L2TPV3},
  44         {VIRTCHNL_PROTO_HDR_ESP,        ICE_FLOW_SEG_HDR_ESP},
  45         {VIRTCHNL_PROTO_HDR_AH,         ICE_FLOW_SEG_HDR_AH},
  46         {VIRTCHNL_PROTO_HDR_PFCP,       ICE_FLOW_SEG_HDR_PFCP_SESSION},
  47 };
  48
  49 struct ice_vc_hash_field_match_type {
  50         u32 vc_hdr;             /* virtchnl headers
  51                                  * (VIRTCHNL_PROTO_HDR_XXX)
  52                                  */
  53         u32 vc_hash_field;      /* virtchnl hash fields selector
  54                                  * FIELD_SELECTOR((VIRTCHNL_PROTO_HDR_ETH_XXX))
  55                                  */
  56         u64 ice_hash_field;     /* ice hash fields
  57                                  * (BIT_ULL(ICE_FLOW_FIELD_IDX_XXX))
  58                                  */
  59 };
  60
  61 static const struct
  62 ice_vc_hash_field_match_type ice_vc_hash_field_list[] = {
  63         {VIRTCHNL_PROTO_HDR_ETH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_SRC),
  64                 BIT_ULL(ICE_FLOW_FIELD_IDX_ETH_SA)},
  65         {VIRTCHNL_PROTO_HDR_ETH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_DST),
  66                 BIT_ULL(ICE_FLOW_FIELD_IDX_ETH_DA)},
  67         {VIRTCHNL_PROTO_HDR_ETH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_SRC) |
  68                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_DST),
  69                 ICE_FLOW_HASH_ETH},
  70         {VIRTCHNL_PROTO_HDR_ETH,
  71                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_ETHERTYPE),
  72                 BIT_ULL(ICE_FLOW_FIELD_IDX_ETH_TYPE)},
  73         {VIRTCHNL_PROTO_HDR_S_VLAN,
  74                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_S_VLAN_ID),
  75                 BIT_ULL(ICE_FLOW_FIELD_IDX_S_VLAN)},
  76         {VIRTCHNL_PROTO_HDR_C_VLAN,
  77                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_C_VLAN_ID),
  78                 BIT_ULL(ICE_FLOW_FIELD_IDX_C_VLAN)},
  79         {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC),
  80                 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)},
  81         {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST),
  82                 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)},
  83         {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) |
  84                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST),
  85                 ICE_FLOW_HASH_IPV4},
  86         {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) |
  87                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT),
  88                 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA) |
  89                 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)},
  90         {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST) |
  91                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT),
  92                 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA) |
  93                 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)},
  94         {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) |
  95                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST) |
  96                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT),
  97                 ICE_FLOW_HASH_IPV4 | BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)},
  98         {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT),
  99                 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)},
 100         {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC),
 101                 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)},
 102         {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST),
 103                 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)},
 104         {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC) |
 105                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST),
 106                 ICE_FLOW_HASH_IPV6},
 107         {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC) |
 108                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT),
 109                 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA) |
 110                 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)},
 111         {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST) |
 112                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT),
 113                 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA) |
 114                 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)},
 115         {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC) |
 116                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST) |
 117                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT),
 118                 ICE_FLOW_HASH_IPV6 | BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)},
 119         {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT),
 120                 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)},
 121         {VIRTCHNL_PROTO_HDR_TCP,
 122                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_SRC_PORT),
 123                 BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT)},
 124         {VIRTCHNL_PROTO_HDR_TCP,
 125                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_DST_PORT),
 126                 BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)},
 127         {VIRTCHNL_PROTO_HDR_TCP,
 128                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_SRC_PORT) |
 129                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_DST_PORT),
 130                 ICE_FLOW_HASH_TCP_PORT},
 131         {VIRTCHNL_PROTO_HDR_UDP,
 132                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_SRC_PORT),
 133                 BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT)},
 134         {VIRTCHNL_PROTO_HDR_UDP,
 135                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_DST_PORT),
 136                 BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)},
 137         {VIRTCHNL_PROTO_HDR_UDP,
 138                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_SRC_PORT) |
 139                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_DST_PORT),
 140                 ICE_FLOW_HASH_UDP_PORT},
 141         {VIRTCHNL_PROTO_HDR_SCTP,
 142                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_SRC_PORT),
 143                 BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT)},
 144         {VIRTCHNL_PROTO_HDR_SCTP,
 145                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_DST_PORT),
 146                 BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)},
 147         {VIRTCHNL_PROTO_HDR_SCTP,
 148                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_SRC_PORT) |
 149                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_DST_PORT),
 150                 ICE_FLOW_HASH_SCTP_PORT},
 151         {VIRTCHNL_PROTO_HDR_PPPOE,
 152                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_PPPOE_SESS_ID),
 153                 BIT_ULL(ICE_FLOW_FIELD_IDX_PPPOE_SESS_ID)},
 154         {VIRTCHNL_PROTO_HDR_GTPU_IP,
 155                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_GTPU_IP_TEID),
 156                 BIT_ULL(ICE_FLOW_FIELD_IDX_GTPU_IP_TEID)},
 157         {VIRTCHNL_PROTO_HDR_L2TPV3,
 158                 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_L2TPV3_SESS_ID),
 159                 BIT_ULL(ICE_FLOW_FIELD_IDX_L2TPV3_SESS_ID)},
 160         {VIRTCHNL_PROTO_HDR_ESP, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ESP_SPI),
 161                 BIT_ULL(ICE_FLOW_FIELD_IDX_ESP_SPI)},
 162         {VIRTCHNL_PROTO_HDR_AH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_AH_SPI),
 163                 BIT_ULL(ICE_FLOW_FIELD_IDX_AH_SPI)},
 164         {VIRTCHNL_PROTO_HDR_PFCP, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_PFCP_SEID),
 165                 BIT_ULL(ICE_FLOW_FIELD_IDX_PFCP_SEID)},
 166 };
 167
 168 /**
 169  * ice_vc_vf_broadcast - Broadcast a message to all VFs on PF
 170  * @pf: pointer to the PF structure
 171  * @v_opcode: operation code
 172  * @v_retval: return value
 173  * @msg: pointer to the msg buffer
 174  * @msglen: msg length
 175  */
 176 static void
 177 ice_vc_vf_broadcast(struct ice_pf *pf, enum virtchnl_ops v_opcode,
 178                     enum virtchnl_status_code v_retval, u8 *msg, u16 msglen)
 179 {
 180         struct ice_hw *hw = &pf->hw;
 181         struct ice_vf *vf;
 182         unsigned int bkt;
 183
 184         mutex_lock(&pf->vfs.table_lock);
 185         ice_for_each_vf(pf, bkt, vf) {
 186                 /* Not all vfs are enabled so skip the ones that are not */
 187                 if (!test_bit(ICE_VF_STATE_INIT, vf->vf_states) &&
 188                     !test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states))
 189                         continue;
 190
 191                 /* Ignore return value on purpose - a given VF may fail, but
 192                  * we need to keep going and send to all of them
 193                  */
 194                 ice_aq_send_msg_to_vf(hw, vf->vf_id, v_opcode, v_retval, msg,
 195                                       msglen, NULL);
 196         }
 197         mutex_unlock(&pf->vfs.table_lock);
 198 }
 199
 200 /**
 201  * ice_set_pfe_link - Set the link speed/status of the virtchnl_pf_event
 202  * @vf: pointer to the VF structure
 203  * @pfe: pointer to the virtchnl_pf_event to set link speed/status for
 204  * @ice_link_speed: link speed specified by ICE_AQ_LINK_SPEED_*
 205  * @link_up: whether or not to set the link up/down
 206  */
 207 static void
 208 ice_set_pfe_link(struct ice_vf *vf, struct virtchnl_pf_event *pfe,
 209                  int ice_link_speed, bool link_up)
 210 {
 211         if (vf->driver_caps & VIRTCHNL_VF_CAP_ADV_LINK_SPEED) {
 212                 pfe->event_data.link_event_adv.link_status = link_up;
 213                 /* Speed in Mbps */
 214                 pfe->event_data.link_event_adv.link_speed =
 215                         ice_conv_link_speed_to_virtchnl(true, ice_link_speed);
 216         } else {
 217                 pfe->event_data.link_event.link_status = link_up;
 218                 /* Legacy method for virtchnl link speeds */
 219                 pfe->event_data.link_event.link_speed =
 220                         (enum virtchnl_link_speed)
 221                         ice_conv_link_speed_to_virtchnl(false, ice_link_speed);
 222         }
 223 }
 224
 225 /**
 226  * ice_vc_notify_vf_link_state - Inform a VF of link status
 227  * @vf: pointer to the VF structure
 228  *
 229  * send a link status message to a single VF
 230  */
 231 void ice_vc_notify_vf_link_state(struct ice_vf *vf)
 232 {
 233         struct virtchnl_pf_event pfe = { 0 };
 234         struct ice_hw *hw = &vf->pf->hw;
 235
 236         pfe.event = VIRTCHNL_EVENT_LINK_CHANGE;
 237         pfe.severity = PF_EVENT_SEVERITY_INFO;
 238
 239         if (ice_is_vf_link_up(vf))
 240                 ice_set_pfe_link(vf, &pfe,
 241                                  hw->port_info->phy.link_info.link_speed, true);
 242         else
 243                 ice_set_pfe_link(vf, &pfe, ICE_AQ_LINK_SPEED_UNKNOWN, false);
 244
 245         ice_aq_send_msg_to_vf(hw, vf->vf_id, VIRTCHNL_OP_EVENT,
 246                               VIRTCHNL_STATUS_SUCCESS, (u8 *)&pfe,
 247                               sizeof(pfe), NULL);
 248 }
 249
 250 /**
 251  * ice_vc_notify_link_state - Inform all VFs on a PF of link status
 252  * @pf: pointer to the PF structure
 253  */
 254 void ice_vc_notify_link_state(struct ice_pf *pf)
 255 {
 256         struct ice_vf *vf;
 257         unsigned int bkt;
 258
 259         mutex_lock(&pf->vfs.table_lock);
 260         ice_for_each_vf(pf, bkt, vf)
 261                 ice_vc_notify_vf_link_state(vf);
 262         mutex_unlock(&pf->vfs.table_lock);
 263 }
 264
 265 /**
 266  * ice_vc_notify_reset - Send pending reset message to all VFs
 267  * @pf: pointer to the PF structure
 268  *
 269  * indicate a pending reset to all VFs on a given PF
 270  */
 271 void ice_vc_notify_reset(struct ice_pf *pf)
 272 {
 273         struct virtchnl_pf_event pfe;
 274
 275         if (!ice_has_vfs(pf))
 276                 return;
 277
 278         pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING;
 279         pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM;
 280         ice_vc_vf_broadcast(pf, VIRTCHNL_OP_EVENT, VIRTCHNL_STATUS_SUCCESS,
 281                             (u8 *)&pfe, sizeof(struct virtchnl_pf_event));
 282 }
 283
 284 /**
 285  * ice_vc_send_msg_to_vf - Send message to VF
 286  * @vf: pointer to the VF info
 287  * @v_opcode: virtual channel opcode
 288  * @v_retval: virtual channel return value
 289  * @msg: pointer to the msg buffer
 290  * @msglen: msg length
 291  *
 292  * send msg to VF
 293  */
 294 int
 295 ice_vc_send_msg_to_vf(struct ice_vf *vf, u32 v_opcode,
 296                       enum virtchnl_status_code v_retval, u8 *msg, u16 msglen)
 297 {
 298         struct device *dev;
 299         struct ice_pf *pf;
 300         int aq_ret;
 301
 302         pf = vf->pf;
 303         dev = ice_pf_to_dev(pf);
 304
 305         aq_ret = ice_aq_send_msg_to_vf(&pf->hw, vf->vf_id, v_opcode, v_retval,
 306                                        msg, msglen, NULL);
 307         if (aq_ret && pf->hw.mailboxq.sq_last_status != ICE_AQ_RC_ENOSYS) {
 308                 dev_info(dev, "Unable to send the message to VF %d ret %d aq_err %s\n",
 309                          vf->vf_id, aq_ret,
 310                          ice_aq_str(pf->hw.mailboxq.sq_last_status));
 311                 return -EIO;
 312         }
 313
 314         return 0;
 315 }
 316
 317 /**
 318  * ice_vc_get_ver_msg
 319  * @vf: pointer to the VF info
 320  * @msg: pointer to the msg buffer
 321  *
 322  * called from the VF to request the API version used by the PF
 323  */
 324 static int ice_vc_get_ver_msg(struct ice_vf *vf, u8 *msg)
 325 {
 326         struct virtchnl_version_info info = {
 327                 VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR
 328         };
 329
 330         vf->vf_ver = *(struct virtchnl_version_info *)msg;
 331         /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */
 332         if (VF_IS_V10(&vf->vf_ver))
 333                 info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS;
 334
 335         return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION,
 336                                      VIRTCHNL_STATUS_SUCCESS, (u8 *)&info,
 337                                      sizeof(struct virtchnl_version_info));
 338 }
 339
 340 /**
 341  * ice_vc_get_max_frame_size - get max frame size allowed for VF
 342  * @vf: VF used to determine max frame size
 343  *
 344  * Max frame size is determined based on the current port's max frame size and
 345  * whether a port VLAN is configured on this VF. The VF is not aware whether
 346  * it's in a port VLAN so the PF needs to account for this in max frame size
 347  * checks and sending the max frame size to the VF.
 348  */
 349 static u16 ice_vc_get_max_frame_size(struct ice_vf *vf)
 350 {
 351         struct ice_port_info *pi = ice_vf_get_port_info(vf);
 352         u16 max_frame_size;
 353
 354         max_frame_size = pi->phy.link_info.max_frame_size;
 355
 356         if (ice_vf_is_port_vlan_ena(vf))
 357                 max_frame_size -= VLAN_HLEN;
 358
 359         return max_frame_size;
 360 }
 361
 362 /**
 363  * ice_vc_get_vf_res_msg
 364  * @vf: pointer to the VF info
 365  * @msg: pointer to the msg buffer
 366  *
 367  * called from the VF to request its resources
 368  */
 369 static int ice_vc_get_vf_res_msg(struct ice_vf *vf, u8 *msg)
 370 {
 371         enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
 372         struct virtchnl_vf_resource *vfres = NULL;
 373         struct ice_hw *hw = &vf->pf->hw;
 374         struct ice_vsi *vsi;
 375         int len = 0;
 376         int ret;
 377
 378         if (ice_check_vf_init(vf)) {
 379                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 380                 goto err;
 381         }
 382
 383         len = sizeof(struct virtchnl_vf_resource);
 384
 385         vfres = kzalloc(len, GFP_KERNEL);
 386         if (!vfres) {
 387                 v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
 388                 len = 0;
 389                 goto err;
 390         }
 391         if (VF_IS_V11(&vf->vf_ver))
 392                 vf->driver_caps = *(u32 *)msg;
 393         else
 394                 vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 |
 395                                   VIRTCHNL_VF_OFFLOAD_RSS_REG |
 396                                   VIRTCHNL_VF_OFFLOAD_VLAN;
 397
 398         vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2;
 399         vsi = ice_get_vf_vsi(vf);
 400         if (!vsi) {
 401                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 402                 goto err;
 403         }
 404
 405         if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_VLAN_V2) {
 406                 /* VLAN offloads based on current device configuration */
 407                 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN_V2;
 408         } else if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_VLAN) {
 409                 /* allow VF to negotiate VIRTCHNL_VF_OFFLOAD explicitly for
 410                  * these two conditions, which amounts to guest VLAN filtering
 411                  * and offloads being based on the inner VLAN or the
 412                  * inner/single VLAN respectively and don't allow VF to
 413                  * negotiate VIRTCHNL_VF_OFFLOAD in any other cases
 414                  */
 415                 if (ice_is_dvm_ena(hw) && ice_vf_is_port_vlan_ena(vf)) {
 416                         vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN;
 417                 } else if (!ice_is_dvm_ena(hw) &&
 418                            !ice_vf_is_port_vlan_ena(vf)) {
 419                         vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_VLAN;
 420                         /* configure backward compatible support for VFs that
 421                          * only support VIRTCHNL_VF_OFFLOAD_VLAN, the PF is
 422                          * configured in SVM, and no port VLAN is configured
 423                          */
 424                         ice_vf_vsi_cfg_svm_legacy_vlan_mode(vsi);
 425                 } else if (ice_is_dvm_ena(hw)) {
 426                         /* configure software offloaded VLAN support when DVM
 427                          * is enabled, but no port VLAN is enabled
 428                          */
 429                         ice_vf_vsi_cfg_dvm_legacy_vlan_mode(vsi);
 430                 }
 431         }
 432
 433         if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) {
 434                 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF;
 435         } else {
 436                 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ)
 437                         vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ;
 438                 else
 439                         vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG;
 440         }
 441
 442         if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_FDIR_PF)
 443                 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_FDIR_PF;
 444
 445         if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
 446                 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
 447
 448         if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP)
 449                 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP;
 450
 451         if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM)
 452                 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM;
 453
 454         if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING)
 455                 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING;
 456
 457         if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
 458                 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
 459
 460         if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES)
 461                 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES;
 462
 463         if (vf->driver_caps & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
 464                 vfres->vf_cap_flags |= VIRTCHNL_VF_CAP_ADV_LINK_SPEED;
 465
 466         if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF)
 467                 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF;
 468
 469         if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_USO)
 470                 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_USO;
 471
 472         vfres->num_vsis = 1;
 473         /* Tx and Rx queue are equal for VF */
 474         vfres->num_queue_pairs = vsi->num_txq;
 475         vfres->max_vectors = vf->pf->vfs.num_msix_per;
 476         vfres->rss_key_size = ICE_VSIQF_HKEY_ARRAY_SIZE;
 477         vfres->rss_lut_size = ICE_VSIQF_HLUT_ARRAY_SIZE;
 478         vfres->max_mtu = ice_vc_get_max_frame_size(vf);
 479
 480         vfres->vsi_res[0].vsi_id = vf->lan_vsi_num;
 481         vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV;
 482         vfres->vsi_res[0].num_queue_pairs = vsi->num_txq;
 483         ether_addr_copy(vfres->vsi_res[0].default_mac_addr,
 484                         vf->hw_lan_addr.addr);
 485
 486         /* match guest capabilities */
 487         vf->driver_caps = vfres->vf_cap_flags;
 488
 489         ice_vc_set_caps_allowlist(vf);
 490         ice_vc_set_working_allowlist(vf);
 491
 492         set_bit(ICE_VF_STATE_ACTIVE, vf->vf_states);
 493
 494 err:
 495         /* send the response back to the VF */
 496         ret = ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES, v_ret,
 497                                     (u8 *)vfres, len);
 498
 499         kfree(vfres);
 500         return ret;
 501 }
 502
 503 /**
 504  * ice_vc_reset_vf_msg
 505  * @vf: pointer to the VF info
 506  *
 507  * called from the VF to reset itself,
 508  * unlike other virtchnl messages, PF driver
 509  * doesn't send the response back to the VF
 510  */
 511 static void ice_vc_reset_vf_msg(struct ice_vf *vf)
 512 {
 513         if (test_bit(ICE_VF_STATE_INIT, vf->vf_states))
 514                 ice_reset_vf(vf, 0);
 515 }
 516
 517 /**
 518  * ice_vc_isvalid_vsi_id
 519  * @vf: pointer to the VF info
 520  * @vsi_id: VF relative VSI ID
 521  *
 522  * check for the valid VSI ID
 523  */
 524 bool ice_vc_isvalid_vsi_id(struct ice_vf *vf, u16 vsi_id)
 525 {
 526         struct ice_pf *pf = vf->pf;
 527         struct ice_vsi *vsi;
 528
 529         vsi = ice_find_vsi(pf, vsi_id);
 530
 531         return (vsi && (vsi->vf == vf));
 532 }
 533
 534 /**
 535  * ice_vc_isvalid_q_id
 536  * @vf: pointer to the VF info
 537  * @vsi_id: VSI ID
 538  * @qid: VSI relative queue ID
 539  *
 540  * check for the valid queue ID
 541  */
 542 static bool ice_vc_isvalid_q_id(struct ice_vf *vf, u16 vsi_id, u8 qid)
 543 {
 544         struct ice_vsi *vsi = ice_find_vsi(vf->pf, vsi_id);
 545         /* allocated Tx and Rx queues should be always equal for VF VSI */
 546         return (vsi && (qid < vsi->alloc_txq));
 547 }
 548
 549 /**
 550  * ice_vc_isvalid_ring_len
 551  * @ring_len: length of ring
 552  *
 553  * check for the valid ring count, should be multiple of ICE_REQ_DESC_MULTIPLE
 554  * or zero
 555  */
 556 static bool ice_vc_isvalid_ring_len(u16 ring_len)
 557 {
 558         return ring_len == 0 ||
 559                (ring_len >= ICE_MIN_NUM_DESC &&
 560                 ring_len <= ICE_MAX_NUM_DESC &&
 561                 !(ring_len % ICE_REQ_DESC_MULTIPLE));
 562 }
 563
 564 /**
 565  * ice_vc_validate_pattern
 566  * @vf: pointer to the VF info
 567  * @proto: virtchnl protocol headers
 568  *
 569  * validate the pattern is supported or not.
 570  *
 571  * Return: true on success, false on error.
 572  */
 573 bool
 574 ice_vc_validate_pattern(struct ice_vf *vf, struct virtchnl_proto_hdrs *proto)
 575 {
 576         bool is_ipv4 = false;
 577         bool is_ipv6 = false;
 578         bool is_udp = false;
 579         u16 ptype = -1;
 580         int i = 0;
 581
 582         while (i < proto->count &&
 583                proto->proto_hdr[i].type != VIRTCHNL_PROTO_HDR_NONE) {
 584                 switch (proto->proto_hdr[i].type) {
 585                 case VIRTCHNL_PROTO_HDR_ETH:
 586                         ptype = ICE_PTYPE_MAC_PAY;
 587                         break;
 588                 case VIRTCHNL_PROTO_HDR_IPV4:
 589                         ptype = ICE_PTYPE_IPV4_PAY;
 590                         is_ipv4 = true;
 591                         break;
 592                 case VIRTCHNL_PROTO_HDR_IPV6:
 593                         ptype = ICE_PTYPE_IPV6_PAY;
 594                         is_ipv6 = true;
 595                         break;
 596                 case VIRTCHNL_PROTO_HDR_UDP:
 597                         if (is_ipv4)
 598                                 ptype = ICE_PTYPE_IPV4_UDP_PAY;
 599                         else if (is_ipv6)
 600                                 ptype = ICE_PTYPE_IPV6_UDP_PAY;
 601                         is_udp = true;
 602                         break;
 603                 case VIRTCHNL_PROTO_HDR_TCP:
 604                         if (is_ipv4)
 605                                 ptype = ICE_PTYPE_IPV4_TCP_PAY;
 606                         else if (is_ipv6)
 607                                 ptype = ICE_PTYPE_IPV6_TCP_PAY;
 608                         break;
 609                 case VIRTCHNL_PROTO_HDR_SCTP:
 610                         if (is_ipv4)
 611                                 ptype = ICE_PTYPE_IPV4_SCTP_PAY;
 612                         else if (is_ipv6)
 613                                 ptype = ICE_PTYPE_IPV6_SCTP_PAY;
 614                         break;
 615                 case VIRTCHNL_PROTO_HDR_GTPU_IP:
 616                 case VIRTCHNL_PROTO_HDR_GTPU_EH:
 617                         if (is_ipv4)
 618                                 ptype = ICE_MAC_IPV4_GTPU;
 619                         else if (is_ipv6)
 620                                 ptype = ICE_MAC_IPV6_GTPU;
 621                         goto out;
 622                 case VIRTCHNL_PROTO_HDR_L2TPV3:
 623                         if (is_ipv4)
 624                                 ptype = ICE_MAC_IPV4_L2TPV3;
 625                         else if (is_ipv6)
 626                                 ptype = ICE_MAC_IPV6_L2TPV3;
 627                         goto out;
 628                 case VIRTCHNL_PROTO_HDR_ESP:
 629                         if (is_ipv4)
 630                                 ptype = is_udp ? ICE_MAC_IPV4_NAT_T_ESP :
 631                                                 ICE_MAC_IPV4_ESP;
 632                         else if (is_ipv6)
 633                                 ptype = is_udp ? ICE_MAC_IPV6_NAT_T_ESP :
 634                                                 ICE_MAC_IPV6_ESP;
 635                         goto out;
 636                 case VIRTCHNL_PROTO_HDR_AH:
 637                         if (is_ipv4)
 638                                 ptype = ICE_MAC_IPV4_AH;
 639                         else if (is_ipv6)
 640                                 ptype = ICE_MAC_IPV6_AH;
 641                         goto out;
 642                 case VIRTCHNL_PROTO_HDR_PFCP:
 643                         if (is_ipv4)
 644                                 ptype = ICE_MAC_IPV4_PFCP_SESSION;
 645                         else if (is_ipv6)
 646                                 ptype = ICE_MAC_IPV6_PFCP_SESSION;
 647                         goto out;
 648                 default:
 649                         break;
 650                 }
 651                 i++;
 652         }
 653
 654 out:
 655         return ice_hw_ptype_ena(&vf->pf->hw, ptype);
 656 }
 657
 658 /**
 659  * ice_vc_parse_rss_cfg - parses hash fields and headers from
 660  * a specific virtchnl RSS cfg
 661  * @hw: pointer to the hardware
 662  * @rss_cfg: pointer to the virtchnl RSS cfg
 663  * @addl_hdrs: pointer to the protocol header fields (ICE_FLOW_SEG_HDR_*)
 664  * to configure
 665  * @hash_flds: pointer to the hash bit fields (ICE_FLOW_HASH_*) to configure
 666  *
 667  * Return true if all the protocol header and hash fields in the RSS cfg could
 668  * be parsed, else return false
 669  *
 670  * This function parses the virtchnl RSS cfg to be the intended
 671  * hash fields and the intended header for RSS configuration
 672  */
 673 static bool
 674 ice_vc_parse_rss_cfg(struct ice_hw *hw, struct virtchnl_rss_cfg *rss_cfg,
 675                      u32 *addl_hdrs, u64 *hash_flds)
 676 {
 677         const struct ice_vc_hash_field_match_type *hf_list;
 678         const struct ice_vc_hdr_match_type *hdr_list;
 679         int i, hf_list_len, hdr_list_len;
 680
 681         hf_list = ice_vc_hash_field_list;
 682         hf_list_len = ARRAY_SIZE(ice_vc_hash_field_list);
 683         hdr_list = ice_vc_hdr_list;
 684         hdr_list_len = ARRAY_SIZE(ice_vc_hdr_list);
 685
 686         for (i = 0; i < rss_cfg->proto_hdrs.count; i++) {
 687                 struct virtchnl_proto_hdr *proto_hdr =
 688                                         &rss_cfg->proto_hdrs.proto_hdr[i];
 689                 bool hdr_found = false;
 690                 int j;
 691
 692                 /* Find matched ice headers according to virtchnl headers. */
 693                 for (j = 0; j < hdr_list_len; j++) {
 694                         struct ice_vc_hdr_match_type hdr_map = hdr_list[j];
 695
 696                         if (proto_hdr->type == hdr_map.vc_hdr) {
 697                                 *addl_hdrs |= hdr_map.ice_hdr;
 698                                 hdr_found = true;
 699                         }
 700                 }
 701
 702                 if (!hdr_found)
 703                         return false;
 704
 705                 /* Find matched ice hash fields according to
 706                  * virtchnl hash fields.
 707                  */
 708                 for (j = 0; j < hf_list_len; j++) {
 709                         struct ice_vc_hash_field_match_type hf_map = hf_list[j];
 710
 711                         if (proto_hdr->type == hf_map.vc_hdr &&
 712                             proto_hdr->field_selector == hf_map.vc_hash_field) {
 713                                 *hash_flds |= hf_map.ice_hash_field;
 714                                 break;
 715                         }
 716                 }
 717         }
 718
 719         return true;
 720 }
 721
 722 /**
 723  * ice_vf_adv_rss_offload_ena - determine if capabilities support advanced
 724  * RSS offloads
 725  * @caps: VF driver negotiated capabilities
 726  *
 727  * Return true if VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF capability is set,
 728  * else return false
 729  */
 730 static bool ice_vf_adv_rss_offload_ena(u32 caps)
 731 {
 732         return !!(caps & VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF);
 733 }
 734
 735 /**
 736  * ice_vc_handle_rss_cfg
 737  * @vf: pointer to the VF info
 738  * @msg: pointer to the message buffer
 739  * @add: add a RSS config if true, otherwise delete a RSS config
 740  *
 741  * This function adds/deletes a RSS config
 742  */
 743 static int ice_vc_handle_rss_cfg(struct ice_vf *vf, u8 *msg, bool add)
 744 {
 745         u32 v_opcode = add ? VIRTCHNL_OP_ADD_RSS_CFG : VIRTCHNL_OP_DEL_RSS_CFG;
 746         struct virtchnl_rss_cfg *rss_cfg = (struct virtchnl_rss_cfg *)msg;
 747         enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
 748         struct device *dev = ice_pf_to_dev(vf->pf);
 749         struct ice_hw *hw = &vf->pf->hw;
 750         struct ice_vsi *vsi;
 751
 752         if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
 753                 dev_dbg(dev, "VF %d attempting to configure RSS, but RSS is not supported by the PF\n",
 754                         vf->vf_id);
 755                 v_ret = VIRTCHNL_STATUS_ERR_NOT_SUPPORTED;
 756                 goto error_param;
 757         }
 758
 759         if (!ice_vf_adv_rss_offload_ena(vf->driver_caps)) {
 760                 dev_dbg(dev, "VF %d attempting to configure RSS, but Advanced RSS offload is not supported\n",
 761                         vf->vf_id);
 762                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 763                 goto error_param;
 764         }
 765
 766         if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
 767                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 768                 goto error_param;
 769         }
 770
 771         if (rss_cfg->proto_hdrs.count > VIRTCHNL_MAX_NUM_PROTO_HDRS ||
 772             rss_cfg->rss_algorithm < VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC ||
 773             rss_cfg->rss_algorithm > VIRTCHNL_RSS_ALG_XOR_SYMMETRIC) {
 774                 dev_dbg(dev, "VF %d attempting to configure RSS, but RSS configuration is not valid\n",
 775                         vf->vf_id);
 776                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 777                 goto error_param;
 778         }
 779
 780         vsi = ice_get_vf_vsi(vf);
 781         if (!vsi) {
 782                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 783                 goto error_param;
 784         }
 785
 786         if (!ice_vc_validate_pattern(vf, &rss_cfg->proto_hdrs)) {
 787                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 788                 goto error_param;
 789         }
 790
 791         if (rss_cfg->rss_algorithm == VIRTCHNL_RSS_ALG_R_ASYMMETRIC) {
 792                 struct ice_vsi_ctx *ctx;
 793                 u8 lut_type, hash_type;
 794                 int status;
 795
 796                 lut_type = ICE_AQ_VSI_Q_OPT_RSS_LUT_VSI;
 797                 hash_type = add ? ICE_AQ_VSI_Q_OPT_RSS_XOR :
 798                                 ICE_AQ_VSI_Q_OPT_RSS_TPLZ;
 799
 800                 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
 801                 if (!ctx) {
 802                         v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
 803                         goto error_param;
 804                 }
 805
 806                 ctx->info.q_opt_rss = ((lut_type <<
 807                                         ICE_AQ_VSI_Q_OPT_RSS_LUT_S) &
 808                                        ICE_AQ_VSI_Q_OPT_RSS_LUT_M) |
 809                                        (hash_type &
 810                                         ICE_AQ_VSI_Q_OPT_RSS_HASH_M);
 811
 812                 /* Preserve existing queueing option setting */
 813                 ctx->info.q_opt_rss |= (vsi->info.q_opt_rss &
 814                                           ICE_AQ_VSI_Q_OPT_RSS_GBL_LUT_M);
 815                 ctx->info.q_opt_tc = vsi->info.q_opt_tc;
 816                 ctx->info.q_opt_flags = vsi->info.q_opt_rss;
 817
 818                 ctx->info.valid_sections =
 819                                 cpu_to_le16(ICE_AQ_VSI_PROP_Q_OPT_VALID);
 820
 821                 status = ice_update_vsi(hw, vsi->idx, ctx, NULL);
 822                 if (status) {
 823                         dev_err(dev, "update VSI for RSS failed, err %d aq_err %s\n",
 824                                 status, ice_aq_str(hw->adminq.sq_last_status));
 825                         v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 826                 } else {
 827                         vsi->info.q_opt_rss = ctx->info.q_opt_rss;
 828                 }
 829
 830                 kfree(ctx);
 831         } else {
 832                 u32 addl_hdrs = ICE_FLOW_SEG_HDR_NONE;
 833                 u64 hash_flds = ICE_HASH_INVALID;
 834
 835                 if (!ice_vc_parse_rss_cfg(hw, rss_cfg, &addl_hdrs,
 836                                           &hash_flds)) {
 837                         v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 838                         goto error_param;
 839                 }
 840
 841                 if (add) {
 842                         if (ice_add_rss_cfg(hw, vsi->idx, hash_flds,
 843                                             addl_hdrs)) {
 844                                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 845                                 dev_err(dev, "ice_add_rss_cfg failed for vsi = %d, v_ret = %d\n",
 846                                         vsi->vsi_num, v_ret);
 847                         }
 848                 } else {
 849                         int status;
 850
 851                         status = ice_rem_rss_cfg(hw, vsi->idx, hash_flds,
 852                                                  addl_hdrs);
 853                         /* We just ignore -ENOENT, because if two configurations
 854                          * share the same profile remove one of them actually
 855                          * removes both, since the profile is deleted.
 856                          */
 857                         if (status && status != -ENOENT) {
 858                                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 859                                 dev_err(dev, "ice_rem_rss_cfg failed for VF ID:%d, error:%d\n",
 860                                         vf->vf_id, status);
 861                         }
 862                 }
 863         }
 864
 865 error_param:
 866         return ice_vc_send_msg_to_vf(vf, v_opcode, v_ret, NULL, 0);
 867 }
 868
 869 /**
 870  * ice_vc_config_rss_key
 871  * @vf: pointer to the VF info
 872  * @msg: pointer to the msg buffer
 873  *
 874  * Configure the VF's RSS key
 875  */
 876 static int ice_vc_config_rss_key(struct ice_vf *vf, u8 *msg)
 877 {
 878         enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
 879         struct virtchnl_rss_key *vrk =
 880                 (struct virtchnl_rss_key *)msg;
 881         struct ice_vsi *vsi;
 882
 883         if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
 884                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 885                 goto error_param;
 886         }
 887
 888         if (!ice_vc_isvalid_vsi_id(vf, vrk->vsi_id)) {
 889                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 890                 goto error_param;
 891         }
 892
 893         if (vrk->key_len != ICE_VSIQF_HKEY_ARRAY_SIZE) {
 894                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 895                 goto error_param;
 896         }
 897
 898         if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
 899                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 900                 goto error_param;
 901         }
 902
 903         vsi = ice_get_vf_vsi(vf);
 904         if (!vsi) {
 905                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 906                 goto error_param;
 907         }
 908
 909         if (ice_set_rss_key(vsi, vrk->key))
 910                 v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
 911 error_param:
 912         return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY, v_ret,
 913                                      NULL, 0);
 914 }
 915
 916 /**
 917  * ice_vc_config_rss_lut
 918  * @vf: pointer to the VF info
 919  * @msg: pointer to the msg buffer
 920  *
 921  * Configure the VF's RSS LUT
 922  */
 923 static int ice_vc_config_rss_lut(struct ice_vf *vf, u8 *msg)
 924 {
 925         struct virtchnl_rss_lut *vrl = (struct virtchnl_rss_lut *)msg;
 926         enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
 927         struct ice_vsi *vsi;
 928
 929         if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
 930                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 931                 goto error_param;
 932         }
 933
 934         if (!ice_vc_isvalid_vsi_id(vf, vrl->vsi_id)) {
 935                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 936                 goto error_param;
 937         }
 938
 939         if (vrl->lut_entries != ICE_VSIQF_HLUT_ARRAY_SIZE) {
 940                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 941                 goto error_param;
 942         }
 943
 944         if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
 945                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 946                 goto error_param;
 947         }
 948
 949         vsi = ice_get_vf_vsi(vf);
 950         if (!vsi) {
 951                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 952                 goto error_param;
 953         }
 954
 955         if (ice_set_rss_lut(vsi, vrl->lut, ICE_VSIQF_HLUT_ARRAY_SIZE))
 956                 v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
 957 error_param:
 958         return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT, v_ret,
 959                                      NULL, 0);
 960 }
 961
 962 /**
 963  * ice_vc_cfg_promiscuous_mode_msg
 964  * @vf: pointer to the VF info
 965  * @msg: pointer to the msg buffer
 966  *
 967  * called from the VF to configure VF VSIs promiscuous mode
 968  */
 969 static int ice_vc_cfg_promiscuous_mode_msg(struct ice_vf *vf, u8 *msg)
 970 {
 971         enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
 972         bool rm_promisc, alluni = false, allmulti = false;
 973         struct virtchnl_promisc_info *info =
 974             (struct virtchnl_promisc_info *)msg;
 975         struct ice_vsi_vlan_ops *vlan_ops;
 976         int mcast_err = 0, ucast_err = 0;
 977         struct ice_pf *pf = vf->pf;
 978         struct ice_vsi *vsi;
 979         struct device *dev;
 980         int ret = 0;
 981
 982         if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
 983                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 984                 goto error_param;
 985         }
 986
 987         if (!ice_vc_isvalid_vsi_id(vf, info->vsi_id)) {
 988                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 989                 goto error_param;
 990         }
 991
 992         vsi = ice_get_vf_vsi(vf);
 993         if (!vsi) {
 994                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 995                 goto error_param;
 996         }
 997
 998         dev = ice_pf_to_dev(pf);
 999         if (!ice_is_vf_trusted(vf)) {
1000                 dev_err(dev, "Unprivileged VF %d is attempting to configure promiscuous mode\n",
1001                         vf->vf_id);
1002                 /* Leave v_ret alone, lie to the VF on purpose. */
1003                 goto error_param;
1004         }
1005
1006         if (info->flags & FLAG_VF_UNICAST_PROMISC)
1007                 alluni = true;
1008
1009         if (info->flags & FLAG_VF_MULTICAST_PROMISC)
1010                 allmulti = true;
1011
1012         rm_promisc = !allmulti && !alluni;
1013
1014         vlan_ops = ice_get_compat_vsi_vlan_ops(vsi);
1015         if (rm_promisc)
1016                 ret = vlan_ops->ena_rx_filtering(vsi);
1017         else
1018                 ret = vlan_ops->dis_rx_filtering(vsi);
1019         if (ret) {
1020                 dev_err(dev, "Failed to configure VLAN pruning in promiscuous mode\n");
1021                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1022                 goto error_param;
1023         }
1024
1025         if (!test_bit(ICE_FLAG_VF_TRUE_PROMISC_ENA, pf->flags)) {
1026                 bool set_dflt_vsi = alluni || allmulti;
1027
1028                 if (set_dflt_vsi && !ice_is_dflt_vsi_in_use(pf->first_sw))
1029                         /* only attempt to set the default forwarding VSI if
1030                          * it's not currently set
1031                          */
1032                         ret = ice_set_dflt_vsi(pf->first_sw, vsi);
1033                 else if (!set_dflt_vsi &&
1034                          ice_is_vsi_dflt_vsi(pf->first_sw, vsi))
1035                         /* only attempt to free the default forwarding VSI if we
1036                          * are the owner
1037                          */
1038                         ret = ice_clear_dflt_vsi(pf->first_sw);
1039
1040                 if (ret) {
1041                         dev_err(dev, "%sable VF %d as the default VSI failed, error %d\n",
1042                                 set_dflt_vsi ? "en" : "dis", vf->vf_id, ret);
1043                         v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
1044                         goto error_param;
1045                 }
1046         } else {
1047                 u8 mcast_m, ucast_m;
1048
1049                 if (ice_vf_is_port_vlan_ena(vf) ||
1050                     ice_vsi_has_non_zero_vlans(vsi)) {
1051                         mcast_m = ICE_MCAST_VLAN_PROMISC_BITS;
1052                         ucast_m = ICE_UCAST_VLAN_PROMISC_BITS;
1053                 } else {
1054                         mcast_m = ICE_MCAST_PROMISC_BITS;
1055                         ucast_m = ICE_UCAST_PROMISC_BITS;
1056                 }
1057
1058                 if (alluni)
1059                         ucast_err = ice_vf_set_vsi_promisc(vf, vsi, ucast_m);
1060                 else
1061                         ucast_err = ice_vf_clear_vsi_promisc(vf, vsi, ucast_m);
1062
1063                 if (allmulti)
1064                         mcast_err = ice_vf_set_vsi_promisc(vf, vsi, mcast_m);
1065                 else
1066                         mcast_err = ice_vf_clear_vsi_promisc(vf, vsi, mcast_m);
1067
1068                 if (ucast_err || mcast_err)
1069                         v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1070         }
1071
1072         if (!mcast_err) {
1073                 if (allmulti &&
1074                     !test_and_set_bit(ICE_VF_STATE_MC_PROMISC, vf->vf_states))
1075                         dev_info(dev, "VF %u successfully set multicast promiscuous mode\n",
1076                                  vf->vf_id);
1077                 else if (!allmulti &&
1078                          test_and_clear_bit(ICE_VF_STATE_MC_PROMISC,
1079                                             vf->vf_states))
1080                         dev_info(dev, "VF %u successfully unset multicast promiscuous mode\n",
1081                                  vf->vf_id);
1082         }
1083
1084         if (!ucast_err) {
1085                 if (alluni &&
1086                     !test_and_set_bit(ICE_VF_STATE_UC_PROMISC, vf->vf_states))
1087                         dev_info(dev, "VF %u successfully set unicast promiscuous mode\n",
1088                                  vf->vf_id);
1089                 else if (!alluni &&
1090                          test_and_clear_bit(ICE_VF_STATE_UC_PROMISC,
1091                                             vf->vf_states))
1092                         dev_info(dev, "VF %u successfully unset unicast promiscuous mode\n",
1093                                  vf->vf_id);
1094         }
1095
1096 error_param:
1097         return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
1098                                      v_ret, NULL, 0);
1099 }
1100
1101 /**
1102  * ice_vc_get_stats_msg
1103  * @vf: pointer to the VF info
1104  * @msg: pointer to the msg buffer
1105  *
1106  * called from the VF to get VSI stats
1107  */
1108 static int ice_vc_get_stats_msg(struct ice_vf *vf, u8 *msg)
1109 {
1110         enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
1111         struct virtchnl_queue_select *vqs =
1112                 (struct virtchnl_queue_select *)msg;
1113         struct ice_eth_stats stats = { 0 };
1114         struct ice_vsi *vsi;
1115
1116         if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
1117                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1118                 goto error_param;
1119         }
1120
1121         if (!ice_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1122                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1123                 goto error_param;
1124         }
1125
1126         vsi = ice_get_vf_vsi(vf);
1127         if (!vsi) {
1128                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1129                 goto error_param;
1130         }
1131
1132         ice_update_eth_stats(vsi);
1133
1134         stats = vsi->eth_stats;
1135
1136 error_param:
1137         /* send the response to the VF */
1138         return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, v_ret,
1139                                      (u8 *)&stats, sizeof(stats));
1140 }
1141
1142 /**
1143  * ice_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTCHNL
1144  * @vqs: virtchnl_queue_select structure containing bitmaps to validate
1145  *
1146  * Return true on successful validation, else false
1147  */
1148 static bool ice_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs)
1149 {
1150         if ((!vqs->rx_queues && !vqs->tx_queues) ||
1151             vqs->rx_queues >= BIT(ICE_MAX_RSS_QS_PER_VF) ||
1152             vqs->tx_queues >= BIT(ICE_MAX_RSS_QS_PER_VF))
1153                 return false;
1154
1155         return true;
1156 }
1157
1158 /**
1159  * ice_vf_ena_txq_interrupt - enable Tx queue interrupt via QINT_TQCTL
1160  * @vsi: VSI of the VF to configure
1161  * @q_idx: VF queue index used to determine the queue in the PF's space
1162  */
1163 static void ice_vf_ena_txq_interrupt(struct ice_vsi *vsi, u32 q_idx)
1164 {
1165         struct ice_hw *hw = &vsi->back->hw;
1166         u32 pfq = vsi->txq_map[q_idx];
1167         u32 reg;
1168
1169         reg = rd32(hw, QINT_TQCTL(pfq));
1170
1171         /* MSI-X index 0 in the VF's space is always for the OICR, which means
1172          * this is most likely a poll mode VF driver, so don't enable an
1173          * interrupt that was never configured via VIRTCHNL_OP_CONFIG_IRQ_MAP
1174          */
1175         if (!(reg & QINT_TQCTL_MSIX_INDX_M))
1176                 return;
1177
1178         wr32(hw, QINT_TQCTL(pfq), reg | QINT_TQCTL_CAUSE_ENA_M);
1179 }
1180
1181 /**
1182  * ice_vf_ena_rxq_interrupt - enable Tx queue interrupt via QINT_RQCTL
1183  * @vsi: VSI of the VF to configure
1184  * @q_idx: VF queue index used to determine the queue in the PF's space
1185  */
1186 static void ice_vf_ena_rxq_interrupt(struct ice_vsi *vsi, u32 q_idx)
1187 {
1188         struct ice_hw *hw = &vsi->back->hw;
1189         u32 pfq = vsi->rxq_map[q_idx];
1190         u32 reg;
1191
1192         reg = rd32(hw, QINT_RQCTL(pfq));
1193
1194         /* MSI-X index 0 in the VF's space is always for the OICR, which means
1195          * this is most likely a poll mode VF driver, so don't enable an
1196          * interrupt that was never configured via VIRTCHNL_OP_CONFIG_IRQ_MAP
1197          */
1198         if (!(reg & QINT_RQCTL_MSIX_INDX_M))
1199                 return;
1200
1201         wr32(hw, QINT_RQCTL(pfq), reg | QINT_RQCTL_CAUSE_ENA_M);
1202 }
1203
1204 /**
1205  * ice_vc_ena_qs_msg
1206  * @vf: pointer to the VF info
1207  * @msg: pointer to the msg buffer
1208  *
1209  * called from the VF to enable all or specific queue(s)
1210  */
1211 static int ice_vc_ena_qs_msg(struct ice_vf *vf, u8 *msg)
1212 {
1213         enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
1214         struct virtchnl_queue_select *vqs =
1215             (struct virtchnl_queue_select *)msg;
1216         struct ice_vsi *vsi;
1217         unsigned long q_map;
1218         u16 vf_q_id;
1219
1220         if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
1221                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1222                 goto error_param;
1223         }
1224
1225         if (!ice_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1226                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1227                 goto error_param;
1228         }
1229
1230         if (!ice_vc_validate_vqs_bitmaps(vqs)) {
1231                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1232                 goto error_param;
1233         }
1234
1235         vsi = ice_get_vf_vsi(vf);
1236         if (!vsi) {
1237                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1238                 goto error_param;
1239         }
1240
1241         /* Enable only Rx rings, Tx rings were enabled by the FW when the
1242          * Tx queue group list was configured and the context bits were
1243          * programmed using ice_vsi_cfg_txqs
1244          */
1245         q_map = vqs->rx_queues;
1246         for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
1247                 if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
1248                         v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1249                         goto error_param;
1250                 }
1251
1252                 /* Skip queue if enabled */
1253                 if (test_bit(vf_q_id, vf->rxq_ena))
1254                         continue;
1255
1256                 if (ice_vsi_ctrl_one_rx_ring(vsi, true, vf_q_id, true)) {
1257                         dev_err(ice_pf_to_dev(vsi->back), "Failed to enable Rx ring %d on VSI %d\n",
1258                                 vf_q_id, vsi->vsi_num);
1259                         v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1260                         goto error_param;
1261                 }
1262
1263                 ice_vf_ena_rxq_interrupt(vsi, vf_q_id);
1264                 set_bit(vf_q_id, vf->rxq_ena);
1265         }
1266
1267         q_map = vqs->tx_queues;
1268         for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
1269                 if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
1270                         v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1271                         goto error_param;
1272                 }
1273
1274                 /* Skip queue if enabled */
1275                 if (test_bit(vf_q_id, vf->txq_ena))
1276                         continue;
1277
1278                 ice_vf_ena_txq_interrupt(vsi, vf_q_id);
1279                 set_bit(vf_q_id, vf->txq_ena);
1280         }
1281
1282         /* Set flag to indicate that queues are enabled */
1283         if (v_ret == VIRTCHNL_STATUS_SUCCESS)
1284                 set_bit(ICE_VF_STATE_QS_ENA, vf->vf_states);
1285
1286 error_param:
1287         /* send the response to the VF */
1288         return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES, v_ret,
1289                                      NULL, 0);
1290 }
1291
1292 /**
1293  * ice_vf_vsi_dis_single_txq - disable a single Tx queue
1294  * @vf: VF to disable queue for
1295  * @vsi: VSI for the VF
1296  * @q_id: VF relative (0-based) queue ID
1297  *
1298  * Attempt to disable the Tx queue passed in. If the Tx queue was successfully
1299  * disabled then clear q_id bit in the enabled queues bitmap and return
1300  * success. Otherwise return error.
1301  */
1302 static int
1303 ice_vf_vsi_dis_single_txq(struct ice_vf *vf, struct ice_vsi *vsi, u16 q_id)
1304 {
1305         struct ice_txq_meta txq_meta = { 0 };
1306         struct ice_tx_ring *ring;
1307         int err;
1308
1309         if (!test_bit(q_id, vf->txq_ena))
1310                 dev_dbg(ice_pf_to_dev(vsi->back), "Queue %u on VSI %u is not enabled, but stopping it anyway\n",
1311                         q_id, vsi->vsi_num);
1312
1313         ring = vsi->tx_rings[q_id];
1314         if (!ring)
1315                 return -EINVAL;
1316
1317         ice_fill_txq_meta(vsi, ring, &txq_meta);
1318
1319         err = ice_vsi_stop_tx_ring(vsi, ICE_NO_RESET, vf->vf_id, ring, &txq_meta);
1320         if (err) {
1321                 dev_err(ice_pf_to_dev(vsi->back), "Failed to stop Tx ring %d on VSI %d\n",
1322                         q_id, vsi->vsi_num);
1323                 return err;
1324         }
1325
1326         /* Clear enabled queues flag */
1327         clear_bit(q_id, vf->txq_ena);
1328
1329         return 0;
1330 }
1331
1332 /**
1333  * ice_vc_dis_qs_msg
1334  * @vf: pointer to the VF info
1335  * @msg: pointer to the msg buffer
1336  *
1337  * called from the VF to disable all or specific queue(s)
1338  */
1339 static int ice_vc_dis_qs_msg(struct ice_vf *vf, u8 *msg)
1340 {
1341         enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
1342         struct virtchnl_queue_select *vqs =
1343             (struct virtchnl_queue_select *)msg;
1344         struct ice_vsi *vsi;
1345         unsigned long q_map;
1346         u16 vf_q_id;
1347
1348         if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) &&
1349             !test_bit(ICE_VF_STATE_QS_ENA, vf->vf_states)) {
1350                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1351                 goto error_param;
1352         }
1353
1354         if (!ice_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1355                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1356                 goto error_param;
1357         }
1358
1359         if (!ice_vc_validate_vqs_bitmaps(vqs)) {
1360                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1361                 goto error_param;
1362         }
1363
1364         vsi = ice_get_vf_vsi(vf);
1365         if (!vsi) {
1366                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1367                 goto error_param;
1368         }
1369
1370         if (vqs->tx_queues) {
1371                 q_map = vqs->tx_queues;
1372
1373                 for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
1374                         if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
1375                                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1376                                 goto error_param;
1377                         }
1378
1379                         if (ice_vf_vsi_dis_single_txq(vf, vsi, vf_q_id)) {
1380                                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1381                                 goto error_param;
1382                         }
1383                 }
1384         }
1385
1386         q_map = vqs->rx_queues;
1387         /* speed up Rx queue disable by batching them if possible */
1388         if (q_map &&
1389             bitmap_equal(&q_map, vf->rxq_ena, ICE_MAX_RSS_QS_PER_VF)) {
1390                 if (ice_vsi_stop_all_rx_rings(vsi)) {
1391                         dev_err(ice_pf_to_dev(vsi->back), "Failed to stop all Rx rings on VSI %d\n",
1392                                 vsi->vsi_num);
1393                         v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1394                         goto error_param;
1395                 }
1396
1397                 bitmap_zero(vf->rxq_ena, ICE_MAX_RSS_QS_PER_VF);
1398         } else if (q_map) {
1399                 for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
1400                         if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
1401                                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1402                                 goto error_param;
1403                         }
1404
1405                         /* Skip queue if not enabled */
1406                         if (!test_bit(vf_q_id, vf->rxq_ena))
1407                                 continue;
1408
1409                         if (ice_vsi_ctrl_one_rx_ring(vsi, false, vf_q_id,
1410                                                      true)) {
1411                                 dev_err(ice_pf_to_dev(vsi->back), "Failed to stop Rx ring %d on VSI %d\n",
1412                                         vf_q_id, vsi->vsi_num);
1413                                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1414                                 goto error_param;
1415                         }
1416
1417                         /* Clear enabled queues flag */
1418                         clear_bit(vf_q_id, vf->rxq_ena);
1419                 }
1420         }
1421
1422         /* Clear enabled queues flag */
1423         if (v_ret == VIRTCHNL_STATUS_SUCCESS && ice_vf_has_no_qs_ena(vf))
1424                 clear_bit(ICE_VF_STATE_QS_ENA, vf->vf_states);
1425
1426 error_param:
1427         /* send the response to the VF */
1428         return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES, v_ret,
1429                                      NULL, 0);
1430 }
1431
1432 /**
1433  * ice_cfg_interrupt
1434  * @vf: pointer to the VF info
1435  * @vsi: the VSI being configured
1436  * @vector_id: vector ID
1437  * @map: vector map for mapping vectors to queues
1438  * @q_vector: structure for interrupt vector
1439  * configure the IRQ to queue map
1440  */
1441 static int
1442 ice_cfg_interrupt(struct ice_vf *vf, struct ice_vsi *vsi, u16 vector_id,
1443                   struct virtchnl_vector_map *map,
1444                   struct ice_q_vector *q_vector)
1445 {
1446         u16 vsi_q_id, vsi_q_id_idx;
1447         unsigned long qmap;
1448
1449         q_vector->num_ring_rx = 0;
1450         q_vector->num_ring_tx = 0;
1451
1452         qmap = map->rxq_map;
1453         for_each_set_bit(vsi_q_id_idx, &qmap, ICE_MAX_RSS_QS_PER_VF) {
1454                 vsi_q_id = vsi_q_id_idx;
1455
1456                 if (!ice_vc_isvalid_q_id(vf, vsi->vsi_num, vsi_q_id))
1457                         return VIRTCHNL_STATUS_ERR_PARAM;
1458
1459                 q_vector->num_ring_rx++;
1460                 q_vector->rx.itr_idx = map->rxitr_idx;
1461                 vsi->rx_rings[vsi_q_id]->q_vector = q_vector;
1462                 ice_cfg_rxq_interrupt(vsi, vsi_q_id, vector_id,
1463                                       q_vector->rx.itr_idx);
1464         }
1465
1466         qmap = map->txq_map;
1467         for_each_set_bit(vsi_q_id_idx, &qmap, ICE_MAX_RSS_QS_PER_VF) {
1468                 vsi_q_id = vsi_q_id_idx;
1469
1470                 if (!ice_vc_isvalid_q_id(vf, vsi->vsi_num, vsi_q_id))
1471                         return VIRTCHNL_STATUS_ERR_PARAM;
1472
1473                 q_vector->num_ring_tx++;
1474                 q_vector->tx.itr_idx = map->txitr_idx;
1475                 vsi->tx_rings[vsi_q_id]->q_vector = q_vector;
1476                 ice_cfg_txq_interrupt(vsi, vsi_q_id, vector_id,
1477                                       q_vector->tx.itr_idx);
1478         }
1479
1480         return VIRTCHNL_STATUS_SUCCESS;
1481 }
1482
1483 /**
1484  * ice_vc_cfg_irq_map_msg
1485  * @vf: pointer to the VF info
1486  * @msg: pointer to the msg buffer
1487  *
1488  * called from the VF to configure the IRQ to queue map
1489  */
1490 static int ice_vc_cfg_irq_map_msg(struct ice_vf *vf, u8 *msg)
1491 {
1492         enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
1493         u16 num_q_vectors_mapped, vsi_id, vector_id;
1494         struct virtchnl_irq_map_info *irqmap_info;
1495         struct virtchnl_vector_map *map;
1496         struct ice_pf *pf = vf->pf;
1497         struct ice_vsi *vsi;
1498         int i;
1499
1500         irqmap_info = (struct virtchnl_irq_map_info *)msg;
1501         num_q_vectors_mapped = irqmap_info->num_vectors;
1502
1503         /* Check to make sure number of VF vectors mapped is not greater than
1504          * number of VF vectors originally allocated, and check that
1505          * there is actually at least a single VF queue vector mapped
1506          */
1507         if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) ||
1508             pf->vfs.num_msix_per < num_q_vectors_mapped ||
1509             !num_q_vectors_mapped) {
1510                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1511                 goto error_param;
1512         }
1513
1514         vsi = ice_get_vf_vsi(vf);
1515         if (!vsi) {
1516                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1517                 goto error_param;
1518         }
1519
1520         for (i = 0; i < num_q_vectors_mapped; i++) {
1521                 struct ice_q_vector *q_vector;
1522
1523                 map = &irqmap_info->vecmap[i];
1524
1525                 vector_id = map->vector_id;
1526                 vsi_id = map->vsi_id;
1527                 /* vector_id is always 0-based for each VF, and can never be
1528                  * larger than or equal to the max allowed interrupts per VF
1529                  */
1530                 if (!(vector_id < pf->vfs.num_msix_per) ||
1531                     !ice_vc_isvalid_vsi_id(vf, vsi_id) ||
1532                     (!vector_id && (map->rxq_map || map->txq_map))) {
1533                         v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1534                         goto error_param;
1535                 }
1536
1537                 /* No need to map VF miscellaneous or rogue vector */
1538                 if (!vector_id)
1539                         continue;
1540
1541                 /* Subtract non queue vector from vector_id passed by VF
1542                  * to get actual number of VSI queue vector array index
1543                  */
1544                 q_vector = vsi->q_vectors[vector_id - ICE_NONQ_VECS_VF];
1545                 if (!q_vector) {
1546                         v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1547                         goto error_param;
1548                 }
1549
1550                 /* lookout for the invalid queue index */
1551                 v_ret = (enum virtchnl_status_code)
1552                         ice_cfg_interrupt(vf, vsi, vector_id, map, q_vector);
1553                 if (v_ret)
1554                         goto error_param;
1555         }
1556
1557 error_param:
1558         /* send the response to the VF */
1559         return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP, v_ret,
1560                                      NULL, 0);
1561 }
1562
1563 /**
1564  * ice_vc_cfg_qs_msg
1565  * @vf: pointer to the VF info
1566  * @msg: pointer to the msg buffer
1567  *
1568  * called from the VF to configure the Rx/Tx queues
1569  */
1570 static int ice_vc_cfg_qs_msg(struct ice_vf *vf, u8 *msg)
1571 {
1572         struct virtchnl_vsi_queue_config_info *qci =
1573             (struct virtchnl_vsi_queue_config_info *)msg;
1574         struct virtchnl_queue_pair_info *qpi;
1575         struct ice_pf *pf = vf->pf;
1576         struct ice_vsi *vsi;
1577         int i = -1, q_idx;
1578
1579         if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states))
1580                 goto error_param;
1581
1582         if (!ice_vc_isvalid_vsi_id(vf, qci->vsi_id))
1583                 goto error_param;
1584
1585         vsi = ice_get_vf_vsi(vf);
1586         if (!vsi)
1587                 goto error_param;
1588
1589         if (qci->num_queue_pairs > ICE_MAX_RSS_QS_PER_VF ||
1590             qci->num_queue_pairs > min_t(u16, vsi->alloc_txq, vsi->alloc_rxq)) {
1591                 dev_err(ice_pf_to_dev(pf), "VF-%d requesting more than supported number of queues: %d\n",
1592                         vf->vf_id, min_t(u16, vsi->alloc_txq, vsi->alloc_rxq));
1593                 goto error_param;
1594         }
1595
1596         for (i = 0; i < qci->num_queue_pairs; i++) {
1597                 qpi = &qci->qpair[i];
1598                 if (qpi->txq.vsi_id != qci->vsi_id ||
1599                     qpi->rxq.vsi_id != qci->vsi_id ||
1600                     qpi->rxq.queue_id != qpi->txq.queue_id ||
1601                     qpi->txq.headwb_enabled ||
1602                     !ice_vc_isvalid_ring_len(qpi->txq.ring_len) ||
1603                     !ice_vc_isvalid_ring_len(qpi->rxq.ring_len) ||
1604                     !ice_vc_isvalid_q_id(vf, qci->vsi_id, qpi->txq.queue_id)) {
1605                         goto error_param;
1606                 }
1607
1608                 q_idx = qpi->rxq.queue_id;
1609
1610                 /* make sure selected "q_idx" is in valid range of queues
1611                  * for selected "vsi"
1612                  */
1613                 if (q_idx >= vsi->alloc_txq || q_idx >= vsi->alloc_rxq) {
1614                         goto error_param;
1615                 }
1616
1617                 /* copy Tx queue info from VF into VSI */
1618                 if (qpi->txq.ring_len > 0) {
1619                         vsi->tx_rings[i]->dma = qpi->txq.dma_ring_addr;
1620                         vsi->tx_rings[i]->count = qpi->txq.ring_len;
1621
1622                         /* Disable any existing queue first */
1623                         if (ice_vf_vsi_dis_single_txq(vf, vsi, q_idx))
1624                                 goto error_param;
1625
1626                         /* Configure a queue with the requested settings */
1627                         if (ice_vsi_cfg_single_txq(vsi, vsi->tx_rings, q_idx)) {
1628                                 dev_warn(ice_pf_to_dev(pf), "VF-%d failed to configure TX queue %d\n",
1629                                          vf->vf_id, i);
1630                                 goto error_param;
1631                         }
1632                 }
1633
1634                 /* copy Rx queue info from VF into VSI */
1635                 if (qpi->rxq.ring_len > 0) {
1636                         u16 max_frame_size = ice_vc_get_max_frame_size(vf);
1637
1638                         vsi->rx_rings[i]->dma = qpi->rxq.dma_ring_addr;
1639                         vsi->rx_rings[i]->count = qpi->rxq.ring_len;
1640
1641                         if (qpi->rxq.databuffer_size != 0 &&
1642                             (qpi->rxq.databuffer_size > ((16 * 1024) - 128) ||
1643                              qpi->rxq.databuffer_size < 1024))
1644                                 goto error_param;
1645                         vsi->rx_buf_len = qpi->rxq.databuffer_size;
1646                         vsi->rx_rings[i]->rx_buf_len = vsi->rx_buf_len;
1647                         if (qpi->rxq.max_pkt_size > max_frame_size ||
1648                             qpi->rxq.max_pkt_size < 64)
1649                                 goto error_param;
1650
1651                         vsi->max_frame = qpi->rxq.max_pkt_size;
1652                         /* add space for the port VLAN since the VF driver is
1653                          * not expected to account for it in the MTU
1654                          * calculation
1655                          */
1656                         if (ice_vf_is_port_vlan_ena(vf))
1657                                 vsi->max_frame += VLAN_HLEN;
1658
1659                         if (ice_vsi_cfg_single_rxq(vsi, q_idx)) {
1660                                 dev_warn(ice_pf_to_dev(pf), "VF-%d failed to configure RX queue %d\n",
1661                                          vf->vf_id, i);
1662                                 goto error_param;
1663                         }
1664                 }
1665         }
1666
1667         /* send the response to the VF */
1668         return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES,
1669                                      VIRTCHNL_STATUS_SUCCESS, NULL, 0);
1670 error_param:
1671         /* disable whatever we can */
1672         for (; i >= 0; i--) {
1673                 if (ice_vsi_ctrl_one_rx_ring(vsi, false, i, true))
1674                         dev_err(ice_pf_to_dev(pf), "VF-%d could not disable RX queue %d\n",
1675                                 vf->vf_id, i);
1676                 if (ice_vf_vsi_dis_single_txq(vf, vsi, i))
1677                         dev_err(ice_pf_to_dev(pf), "VF-%d could not disable TX queue %d\n",
1678                                 vf->vf_id, i);
1679         }
1680
1681         /* send the response to the VF */
1682         return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES,
1683                                      VIRTCHNL_STATUS_ERR_PARAM, NULL, 0);
1684 }
1685
1686 /**
1687  * ice_can_vf_change_mac
1688  * @vf: pointer to the VF info
1689  *
1690  * Return true if the VF is allowed to change its MAC filters, false otherwise
1691  */
1692 static bool ice_can_vf_change_mac(struct ice_vf *vf)
1693 {
1694         /* If the VF MAC address has been set administratively (via the
1695          * ndo_set_vf_mac command), then deny permission to the VF to
1696          * add/delete unicast MAC addresses, unless the VF is trusted
1697          */
1698         if (vf->pf_set_mac && !ice_is_vf_trusted(vf))
1699                 return false;
1700
1701         return true;
1702 }
1703
1704 /**
1705  * ice_vc_ether_addr_type - get type of virtchnl_ether_addr
1706  * @vc_ether_addr: used to extract the type
1707  */
1708 static u8
1709 ice_vc_ether_addr_type(struct virtchnl_ether_addr *vc_ether_addr)
1710 {
1711         return (vc_ether_addr->type & VIRTCHNL_ETHER_ADDR_TYPE_MASK);
1712 }
1713
1714 /**
1715  * ice_is_vc_addr_legacy - check if the MAC address is from an older VF
1716  * @vc_ether_addr: VIRTCHNL structure that contains MAC and type
1717  */
1718 static bool
1719 ice_is_vc_addr_legacy(struct virtchnl_ether_addr *vc_ether_addr)
1720 {
1721         u8 type = ice_vc_ether_addr_type(vc_ether_addr);
1722
1723         return (type == VIRTCHNL_ETHER_ADDR_LEGACY);
1724 }
1725
1726 /**
1727  * ice_is_vc_addr_primary - check if the MAC address is the VF's primary MAC
1728  * @vc_ether_addr: VIRTCHNL structure that contains MAC and type
1729  *
1730  * This function should only be called when the MAC address in
1731  * virtchnl_ether_addr is a valid unicast MAC
1732  */
1733 static bool
1734 ice_is_vc_addr_primary(struct virtchnl_ether_addr __maybe_unused *vc_ether_addr)
1735 {
1736         u8 type = ice_vc_ether_addr_type(vc_ether_addr);
1737
1738         return (type == VIRTCHNL_ETHER_ADDR_PRIMARY);
1739 }
1740
1741 /**
1742  * ice_vfhw_mac_add - update the VF's cached hardware MAC if allowed
1743  * @vf: VF to update
1744  * @vc_ether_addr: structure from VIRTCHNL with MAC to add
1745  */
1746 static void
1747 ice_vfhw_mac_add(struct ice_vf *vf, struct virtchnl_ether_addr *vc_ether_addr)
1748 {
1749         u8 *mac_addr = vc_ether_addr->addr;
1750
1751         if (!is_valid_ether_addr(mac_addr))
1752                 return;
1753
1754         /* only allow legacy VF drivers to set the device and hardware MAC if it
1755          * is zero and allow new VF drivers to set the hardware MAC if the type
1756          * was correctly specified over VIRTCHNL
1757          */
1758         if ((ice_is_vc_addr_legacy(vc_ether_addr) &&
1759              is_zero_ether_addr(vf->hw_lan_addr.addr)) ||
1760             ice_is_vc_addr_primary(vc_ether_addr)) {
1761                 ether_addr_copy(vf->dev_lan_addr.addr, mac_addr);
1762                 ether_addr_copy(vf->hw_lan_addr.addr, mac_addr);
1763         }
1764
1765         /* hardware and device MACs are already set, but its possible that the
1766          * VF driver sent the VIRTCHNL_OP_ADD_ETH_ADDR message before the
1767          * VIRTCHNL_OP_DEL_ETH_ADDR when trying to update its MAC, so save it
1768          * away for the legacy VF driver case as it will be updated in the
1769          * delete flow for this case
1770          */
1771         if (ice_is_vc_addr_legacy(vc_ether_addr)) {
1772                 ether_addr_copy(vf->legacy_last_added_umac.addr,
1773                                 mac_addr);
1774                 vf->legacy_last_added_umac.time_modified = jiffies;
1775         }
1776 }
1777
1778 /**
1779  * ice_vc_add_mac_addr - attempt to add the MAC address passed in
1780  * @vf: pointer to the VF info
1781  * @vsi: pointer to the VF's VSI
1782  * @vc_ether_addr: VIRTCHNL MAC address structure used to add MAC
1783  */
1784 static int
1785 ice_vc_add_mac_addr(struct ice_vf *vf, struct ice_vsi *vsi,
1786                     struct virtchnl_ether_addr *vc_ether_addr)
1787 {
1788         struct device *dev = ice_pf_to_dev(vf->pf);
1789         u8 *mac_addr = vc_ether_addr->addr;
1790         int ret;
1791
1792         /* device MAC already added */
1793         if (ether_addr_equal(mac_addr, vf->dev_lan_addr.addr))
1794                 return 0;
1795
1796         if (is_unicast_ether_addr(mac_addr) && !ice_can_vf_change_mac(vf)) {
1797                 dev_err(dev, "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n");
1798                 return -EPERM;
1799         }
1800
1801         ret = ice_fltr_add_mac(vsi, mac_addr, ICE_FWD_TO_VSI);
1802         if (ret == -EEXIST) {
1803                 dev_dbg(dev, "MAC %pM already exists for VF %d\n", mac_addr,
1804                         vf->vf_id);
1805                 /* don't return since we might need to update
1806                  * the primary MAC in ice_vfhw_mac_add() below
1807                  */
1808         } else if (ret) {
1809                 dev_err(dev, "Failed to add MAC %pM for VF %d\n, error %d\n",
1810                         mac_addr, vf->vf_id, ret);
1811                 return ret;
1812         } else {
1813                 vf->num_mac++;
1814         }
1815
1816         ice_vfhw_mac_add(vf, vc_ether_addr);
1817
1818         return ret;
1819 }
1820
1821 /**
1822  * ice_is_legacy_umac_expired - check if last added legacy unicast MAC expired
1823  * @last_added_umac: structure used to check expiration
1824  */
1825 static bool ice_is_legacy_umac_expired(struct ice_time_mac *last_added_umac)
1826 {
1827 #define ICE_LEGACY_VF_MAC_CHANGE_EXPIRE_TIME    msecs_to_jiffies(3000)
1828         return time_is_before_jiffies(last_added_umac->time_modified +
1829                                       ICE_LEGACY_VF_MAC_CHANGE_EXPIRE_TIME);
1830 }
1831
1832 /**
1833  * ice_update_legacy_cached_mac - update cached hardware MAC for legacy VF
1834  * @vf: VF to update
1835  * @vc_ether_addr: structure from VIRTCHNL with MAC to check
1836  *
1837  * only update cached hardware MAC for legacy VF drivers on delete
1838  * because we cannot guarantee order/type of MAC from the VF driver
1839  */
1840 static void
1841 ice_update_legacy_cached_mac(struct ice_vf *vf,
1842                              struct virtchnl_ether_addr *vc_ether_addr)
1843 {
1844         if (!ice_is_vc_addr_legacy(vc_ether_addr) ||
1845             ice_is_legacy_umac_expired(&vf->legacy_last_added_umac))
1846                 return;
1847
1848         ether_addr_copy(vf->dev_lan_addr.addr, vf->legacy_last_added_umac.addr);
1849         ether_addr_copy(vf->hw_lan_addr.addr, vf->legacy_last_added_umac.addr);
1850 }
1851
1852 /**
1853  * ice_vfhw_mac_del - update the VF's cached hardware MAC if allowed
1854  * @vf: VF to update
1855  * @vc_ether_addr: structure from VIRTCHNL with MAC to delete
1856  */
1857 static void
1858 ice_vfhw_mac_del(struct ice_vf *vf, struct virtchnl_ether_addr *vc_ether_addr)
1859 {
1860         u8 *mac_addr = vc_ether_addr->addr;
1861
1862         if (!is_valid_ether_addr(mac_addr) ||
1863             !ether_addr_equal(vf->dev_lan_addr.addr, mac_addr))
1864                 return;
1865
1866         /* allow the device MAC to be repopulated in the add flow and don't
1867          * clear the hardware MAC (i.e. hw_lan_addr.addr) here as that is meant
1868          * to be persistent on VM reboot and across driver unload/load, which
1869          * won't work if we clear the hardware MAC here
1870          */
1871         eth_zero_addr(vf->dev_lan_addr.addr);
1872
1873         ice_update_legacy_cached_mac(vf, vc_ether_addr);
1874 }
1875
1876 /**
1877  * ice_vc_del_mac_addr - attempt to delete the MAC address passed in
1878  * @vf: pointer to the VF info
1879  * @vsi: pointer to the VF's VSI
1880  * @vc_ether_addr: VIRTCHNL MAC address structure used to delete MAC
1881  */
1882 static int
1883 ice_vc_del_mac_addr(struct ice_vf *vf, struct ice_vsi *vsi,
1884                     struct virtchnl_ether_addr *vc_ether_addr)
1885 {
1886         struct device *dev = ice_pf_to_dev(vf->pf);
1887         u8 *mac_addr = vc_ether_addr->addr;
1888         int status;
1889
1890         if (!ice_can_vf_change_mac(vf) &&
1891             ether_addr_equal(vf->dev_lan_addr.addr, mac_addr))
1892                 return 0;
1893
1894         status = ice_fltr_remove_mac(vsi, mac_addr, ICE_FWD_TO_VSI);
1895         if (status == -ENOENT) {
1896                 dev_err(dev, "MAC %pM does not exist for VF %d\n", mac_addr,
1897                         vf->vf_id);
1898                 return -ENOENT;
1899         } else if (status) {
1900                 dev_err(dev, "Failed to delete MAC %pM for VF %d, error %d\n",
1901                         mac_addr, vf->vf_id, status);
1902                 return -EIO;
1903         }
1904
1905         ice_vfhw_mac_del(vf, vc_ether_addr);
1906
1907         vf->num_mac--;
1908
1909         return 0;
1910 }
1911
1912 /**
1913  * ice_vc_handle_mac_addr_msg
1914  * @vf: pointer to the VF info
1915  * @msg: pointer to the msg buffer
1916  * @set: true if MAC filters are being set, false otherwise
1917  *
1918  * add guest MAC address filter
1919  */
1920 static int
1921 ice_vc_handle_mac_addr_msg(struct ice_vf *vf, u8 *msg, bool set)
1922 {
1923         int (*ice_vc_cfg_mac)
1924                 (struct ice_vf *vf, struct ice_vsi *vsi,
1925                  struct virtchnl_ether_addr *virtchnl_ether_addr);
1926         enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
1927         struct virtchnl_ether_addr_list *al =
1928             (struct virtchnl_ether_addr_list *)msg;
1929         struct ice_pf *pf = vf->pf;
1930         enum virtchnl_ops vc_op;
1931         struct ice_vsi *vsi;
1932         int i;
1933
1934         if (set) {
1935                 vc_op = VIRTCHNL_OP_ADD_ETH_ADDR;
1936                 ice_vc_cfg_mac = ice_vc_add_mac_addr;
1937         } else {
1938                 vc_op = VIRTCHNL_OP_DEL_ETH_ADDR;
1939                 ice_vc_cfg_mac = ice_vc_del_mac_addr;
1940         }
1941
1942         if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) ||
1943             !ice_vc_isvalid_vsi_id(vf, al->vsi_id)) {
1944                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1945                 goto handle_mac_exit;
1946         }
1947
1948         /* If this VF is not privileged, then we can't add more than a
1949          * limited number of addresses. Check to make sure that the
1950          * additions do not push us over the limit.
1951          */
1952         if (set && !ice_is_vf_trusted(vf) &&
1953             (vf->num_mac + al->num_elements) > ICE_MAX_MACADDR_PER_VF) {
1954                 dev_err(ice_pf_to_dev(pf), "Can't add more MAC addresses, because VF-%d is not trusted, switch the VF to trusted mode in order to add more functionalities\n",
1955                         vf->vf_id);
1956                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1957                 goto handle_mac_exit;
1958         }
1959
1960         vsi = ice_get_vf_vsi(vf);
1961         if (!vsi) {
1962                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1963                 goto handle_mac_exit;
1964         }
1965
1966         for (i = 0; i < al->num_elements; i++) {
1967                 u8 *mac_addr = al->list[i].addr;
1968                 int result;
1969
1970                 if (is_broadcast_ether_addr(mac_addr) ||
1971                     is_zero_ether_addr(mac_addr))
1972                         continue;
1973
1974                 result = ice_vc_cfg_mac(vf, vsi, &al->list[i]);
1975                 if (result == -EEXIST || result == -ENOENT) {
1976                         continue;
1977                 } else if (result) {
1978                         v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
1979                         goto handle_mac_exit;
1980                 }
1981         }
1982
1983 handle_mac_exit:
1984         /* send the response to the VF */
1985         return ice_vc_send_msg_to_vf(vf, vc_op, v_ret, NULL, 0);
1986 }
1987
1988 /**
1989  * ice_vc_add_mac_addr_msg
1990  * @vf: pointer to the VF info
1991  * @msg: pointer to the msg buffer
1992  *
1993  * add guest MAC address filter
1994  */
1995 static int ice_vc_add_mac_addr_msg(struct ice_vf *vf, u8 *msg)
1996 {
1997         return ice_vc_handle_mac_addr_msg(vf, msg, true);
1998 }
1999
2000 /**
2001  * ice_vc_del_mac_addr_msg
2002  * @vf: pointer to the VF info
2003  * @msg: pointer to the msg buffer
2004  *
2005  * remove guest MAC address filter
2006  */
2007 static int ice_vc_del_mac_addr_msg(struct ice_vf *vf, u8 *msg)
2008 {
2009         return ice_vc_handle_mac_addr_msg(vf, msg, false);
2010 }
2011
2012 /**
2013  * ice_vc_request_qs_msg
2014  * @vf: pointer to the VF info
2015  * @msg: pointer to the msg buffer
2016  *
2017  * VFs get a default number of queues but can use this message to request a
2018  * different number. If the request is successful, PF will reset the VF and
2019  * return 0. If unsuccessful, PF will send message informing VF of number of
2020  * available queue pairs via virtchnl message response to VF.
2021  */
2022 static int ice_vc_request_qs_msg(struct ice_vf *vf, u8 *msg)
2023 {
2024         enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2025         struct virtchnl_vf_res_request *vfres =
2026                 (struct virtchnl_vf_res_request *)msg;
2027         u16 req_queues = vfres->num_queue_pairs;
2028         struct ice_pf *pf = vf->pf;
2029         u16 max_allowed_vf_queues;
2030         u16 tx_rx_queue_left;
2031         struct device *dev;
2032         u16 cur_queues;
2033
2034         dev = ice_pf_to_dev(pf);
2035         if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
2036                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2037                 goto error_param;
2038         }
2039
2040         cur_queues = vf->num_vf_qs;
2041         tx_rx_queue_left = min_t(u16, ice_get_avail_txq_count(pf),
2042                                  ice_get_avail_rxq_count(pf));
2043         max_allowed_vf_queues = tx_rx_queue_left + cur_queues;
2044         if (!req_queues) {
2045                 dev_err(dev, "VF %d tried to request 0 queues. Ignoring.\n",
2046                         vf->vf_id);
2047         } else if (req_queues > ICE_MAX_RSS_QS_PER_VF) {
2048                 dev_err(dev, "VF %d tried to request more than %d queues.\n",
2049                         vf->vf_id, ICE_MAX_RSS_QS_PER_VF);
2050                 vfres->num_queue_pairs = ICE_MAX_RSS_QS_PER_VF;
2051         } else if (req_queues > cur_queues &&
2052                    req_queues - cur_queues > tx_rx_queue_left) {
2053                 dev_warn(dev, "VF %d requested %u more queues, but only %u left.\n",
2054                          vf->vf_id, req_queues - cur_queues, tx_rx_queue_left);
2055                 vfres->num_queue_pairs = min_t(u16, max_allowed_vf_queues,
2056                                                ICE_MAX_RSS_QS_PER_VF);
2057         } else {
2058                 /* request is successful, then reset VF */
2059                 vf->num_req_qs = req_queues;
2060                 ice_reset_vf(vf, ICE_VF_RESET_NOTIFY);
2061                 dev_info(dev, "VF %d granted request of %u queues.\n",
2062                          vf->vf_id, req_queues);
2063                 return 0;
2064         }
2065
2066 error_param:
2067         /* send the response to the VF */
2068         return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES,
2069                                      v_ret, (u8 *)vfres, sizeof(*vfres));
2070 }
2071
2072 /**
2073  * ice_vf_vlan_offload_ena - determine if capabilities support VLAN offloads
2074  * @caps: VF driver negotiated capabilities
2075  *
2076  * Return true if VIRTCHNL_VF_OFFLOAD_VLAN capability is set, else return false
2077  */
2078 static bool ice_vf_vlan_offload_ena(u32 caps)
2079 {
2080         return !!(caps & VIRTCHNL_VF_OFFLOAD_VLAN);
2081 }
2082
2083 /**
2084  * ice_is_vlan_promisc_allowed - check if VLAN promiscuous config is allowed
2085  * @vf: VF used to determine if VLAN promiscuous config is allowed
2086  */
2087 static bool ice_is_vlan_promisc_allowed(struct ice_vf *vf)
2088 {
2089         if ((test_bit(ICE_VF_STATE_UC_PROMISC, vf->vf_states) ||
2090              test_bit(ICE_VF_STATE_MC_PROMISC, vf->vf_states)) &&
2091             test_bit(ICE_FLAG_VF_TRUE_PROMISC_ENA, vf->pf->flags))
2092                 return true;
2093
2094         return false;
2095 }
2096
2097 /**
2098  * ice_vf_ena_vlan_promisc - Enable Tx/Rx VLAN promiscuous for the VLAN
2099  * @vsi: VF's VSI used to enable VLAN promiscuous mode
2100  * @vlan: VLAN used to enable VLAN promiscuous
2101  *
2102  * This function should only be called if VLAN promiscuous mode is allowed,
2103  * which can be determined via ice_is_vlan_promisc_allowed().
2104  */
2105 static int ice_vf_ena_vlan_promisc(struct ice_vsi *vsi, struct ice_vlan *vlan)
2106 {
2107         u8 promisc_m = ICE_PROMISC_VLAN_TX | ICE_PROMISC_VLAN_RX;
2108         int status;
2109
2110         status = ice_fltr_set_vsi_promisc(&vsi->back->hw, vsi->idx, promisc_m,
2111                                           vlan->vid);
2112         if (status && status != -EEXIST)
2113                 return status;
2114
2115         return 0;
2116 }
2117
2118 /**
2119  * ice_vf_dis_vlan_promisc - Disable Tx/Rx VLAN promiscuous for the VLAN
2120  * @vsi: VF's VSI used to disable VLAN promiscuous mode for
2121  * @vlan: VLAN used to disable VLAN promiscuous
2122  *
2123  * This function should only be called if VLAN promiscuous mode is allowed,
2124  * which can be determined via ice_is_vlan_promisc_allowed().
2125  */
2126 static int ice_vf_dis_vlan_promisc(struct ice_vsi *vsi, struct ice_vlan *vlan)
2127 {
2128         u8 promisc_m = ICE_PROMISC_VLAN_TX | ICE_PROMISC_VLAN_RX;
2129         int status;
2130
2131         status = ice_fltr_clear_vsi_promisc(&vsi->back->hw, vsi->idx, promisc_m,
2132                                             vlan->vid);
2133         if (status && status != -ENOENT)
2134                 return status;
2135
2136         return 0;
2137 }
2138
2139 /**
2140  * ice_vf_has_max_vlans - check if VF already has the max allowed VLAN filters
2141  * @vf: VF to check against
2142  * @vsi: VF's VSI
2143  *
2144  * If the VF is trusted then the VF is allowed to add as many VLANs as it
2145  * wants to, so return false.
2146  *
2147  * When the VF is untrusted compare the number of non-zero VLANs + 1 to the max
2148  * allowed VLANs for an untrusted VF. Return the result of this comparison.
2149  */
2150 static bool ice_vf_has_max_vlans(struct ice_vf *vf, struct ice_vsi *vsi)
2151 {
2152         if (ice_is_vf_trusted(vf))
2153                 return false;
2154
2155 #define ICE_VF_ADDED_VLAN_ZERO_FLTRS    1
2156         return ((ice_vsi_num_non_zero_vlans(vsi) +
2157                 ICE_VF_ADDED_VLAN_ZERO_FLTRS) >= ICE_MAX_VLAN_PER_VF);
2158 }
2159
2160 /**
2161  * ice_vc_process_vlan_msg
2162  * @vf: pointer to the VF info
2163  * @msg: pointer to the msg buffer
2164  * @add_v: Add VLAN if true, otherwise delete VLAN
2165  *
2166  * Process virtchnl op to add or remove programmed guest VLAN ID
2167  */
2168 static int ice_vc_process_vlan_msg(struct ice_vf *vf, u8 *msg, bool add_v)
2169 {
2170         enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2171         struct virtchnl_vlan_filter_list *vfl =
2172             (struct virtchnl_vlan_filter_list *)msg;
2173         struct ice_pf *pf = vf->pf;
2174         bool vlan_promisc = false;
2175         struct ice_vsi *vsi;
2176         struct device *dev;
2177         int status = 0;
2178         int i;
2179
2180         dev = ice_pf_to_dev(pf);
2181         if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
2182                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2183                 goto error_param;
2184         }
2185
2186         if (!ice_vf_vlan_offload_ena(vf->driver_caps)) {
2187                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2188                 goto error_param;
2189         }
2190
2191         if (!ice_vc_isvalid_vsi_id(vf, vfl->vsi_id)) {
2192                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2193                 goto error_param;
2194         }
2195
2196         for (i = 0; i < vfl->num_elements; i++) {
2197                 if (vfl->vlan_id[i] >= VLAN_N_VID) {
2198                         v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2199                         dev_err(dev, "invalid VF VLAN id %d\n",
2200                                 vfl->vlan_id[i]);
2201                         goto error_param;
2202                 }
2203         }
2204
2205         vsi = ice_get_vf_vsi(vf);
2206         if (!vsi) {
2207                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2208                 goto error_param;
2209         }
2210
2211         if (add_v && ice_vf_has_max_vlans(vf, vsi)) {
2212                 dev_info(dev, "VF-%d is not trusted, switch the VF to trusted mode, in order to add more VLAN addresses\n",
2213                          vf->vf_id);
2214                 /* There is no need to let VF know about being not trusted,
2215                  * so we can just return success message here
2216                  */
2217                 goto error_param;
2218         }
2219
2220         /* in DVM a VF can add/delete inner VLAN filters when
2221          * VIRTCHNL_VF_OFFLOAD_VLAN is negotiated, so only reject in SVM
2222          */
2223         if (ice_vf_is_port_vlan_ena(vf) && !ice_is_dvm_ena(&pf->hw)) {
2224                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2225                 goto error_param;
2226         }
2227
2228         /* in DVM VLAN promiscuous is based on the outer VLAN, which would be
2229          * the port VLAN if VIRTCHNL_VF_OFFLOAD_VLAN was negotiated, so only
2230          * allow vlan_promisc = true in SVM and if no port VLAN is configured
2231          */
2232         vlan_promisc = ice_is_vlan_promisc_allowed(vf) &&
2233                 !ice_is_dvm_ena(&pf->hw) &&
2234                 !ice_vf_is_port_vlan_ena(vf);
2235
2236         if (add_v) {
2237                 for (i = 0; i < vfl->num_elements; i++) {
2238                         u16 vid = vfl->vlan_id[i];
2239                         struct ice_vlan vlan;
2240
2241                         if (ice_vf_has_max_vlans(vf, vsi)) {
2242                                 dev_info(dev, "VF-%d is not trusted, switch the VF to trusted mode, in order to add more VLAN addresses\n",
2243                                          vf->vf_id);
2244                                 /* There is no need to let VF know about being
2245                                  * not trusted, so we can just return success
2246                                  * message here as well.
2247                                  */
2248                                 goto error_param;
2249                         }
2250
2251                         /* we add VLAN 0 by default for each VF so we can enable
2252                          * Tx VLAN anti-spoof without triggering MDD events so
2253                          * we don't need to add it again here
2254                          */
2255                         if (!vid)
2256                                 continue;
2257
2258                         vlan = ICE_VLAN(ETH_P_8021Q, vid, 0);
2259                         status = vsi->inner_vlan_ops.add_vlan(vsi, &vlan);
2260                         if (status) {
2261                                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2262                                 goto error_param;
2263                         }
2264
2265                         /* Enable VLAN filtering on first non-zero VLAN */
2266                         if (!vlan_promisc && vid && !ice_is_dvm_ena(&pf->hw)) {
2267                                 if (vsi->inner_vlan_ops.ena_rx_filtering(vsi)) {
2268                                         v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2269                                         dev_err(dev, "Enable VLAN pruning on VLAN ID: %d failed error-%d\n",
2270                                                 vid, status);
2271                                         goto error_param;
2272                                 }
2273                         } else if (vlan_promisc) {
2274                                 status = ice_vf_ena_vlan_promisc(vsi, &vlan);
2275                                 if (status) {
2276                                         v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2277                                         dev_err(dev, "Enable Unicast/multicast promiscuous mode on VLAN ID:%d failed error-%d\n",
2278                                                 vid, status);
2279                                 }
2280                         }
2281                 }
2282         } else {
2283                 /* In case of non_trusted VF, number of VLAN elements passed
2284                  * to PF for removal might be greater than number of VLANs
2285                  * filter programmed for that VF - So, use actual number of
2286                  * VLANS added earlier with add VLAN opcode. In order to avoid
2287                  * removing VLAN that doesn't exist, which result to sending
2288                  * erroneous failed message back to the VF
2289                  */
2290                 int num_vf_vlan;
2291
2292                 num_vf_vlan = vsi->num_vlan;
2293                 for (i = 0; i < vfl->num_elements && i < num_vf_vlan; i++) {
2294                         u16 vid = vfl->vlan_id[i];
2295                         struct ice_vlan vlan;
2296
2297                         /* we add VLAN 0 by default for each VF so we can enable
2298                          * Tx VLAN anti-spoof without triggering MDD events so
2299                          * we don't want a VIRTCHNL request to remove it
2300                          */
2301                         if (!vid)
2302                                 continue;
2303
2304                         vlan = ICE_VLAN(ETH_P_8021Q, vid, 0);
2305                         status = vsi->inner_vlan_ops.del_vlan(vsi, &vlan);
2306                         if (status) {
2307                                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2308                                 goto error_param;
2309                         }
2310
2311                         /* Disable VLAN filtering when only VLAN 0 is left */
2312                         if (!ice_vsi_has_non_zero_vlans(vsi))
2313                                 vsi->inner_vlan_ops.dis_rx_filtering(vsi);
2314
2315                         if (vlan_promisc)
2316                                 ice_vf_dis_vlan_promisc(vsi, &vlan);
2317                 }
2318         }
2319
2320 error_param:
2321         /* send the response to the VF */
2322         if (add_v)
2323                 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, v_ret,
2324                                              NULL, 0);
2325         else
2326                 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, v_ret,
2327                                              NULL, 0);
2328 }
2329
2330 /**
2331  * ice_vc_add_vlan_msg
2332  * @vf: pointer to the VF info
2333  * @msg: pointer to the msg buffer
2334  *
2335  * Add and program guest VLAN ID
2336  */
2337 static int ice_vc_add_vlan_msg(struct ice_vf *vf, u8 *msg)
2338 {
2339         return ice_vc_process_vlan_msg(vf, msg, true);
2340 }
2341
2342 /**
2343  * ice_vc_remove_vlan_msg
2344  * @vf: pointer to the VF info
2345  * @msg: pointer to the msg buffer
2346  *
2347  * remove programmed guest VLAN ID
2348  */
2349 static int ice_vc_remove_vlan_msg(struct ice_vf *vf, u8 *msg)
2350 {
2351         return ice_vc_process_vlan_msg(vf, msg, false);
2352 }
2353
2354 /**
2355  * ice_vc_ena_vlan_stripping
2356  * @vf: pointer to the VF info
2357  *
2358  * Enable VLAN header stripping for a given VF
2359  */
2360 static int ice_vc_ena_vlan_stripping(struct ice_vf *vf)
2361 {
2362         enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2363         struct ice_vsi *vsi;
2364
2365         if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
2366                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2367                 goto error_param;
2368         }
2369
2370         if (!ice_vf_vlan_offload_ena(vf->driver_caps)) {
2371                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2372                 goto error_param;
2373         }
2374
2375         vsi = ice_get_vf_vsi(vf);
2376         if (!vsi) {
2377                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2378                 goto error_param;
2379         }
2380
2381         if (vsi->inner_vlan_ops.ena_stripping(vsi, ETH_P_8021Q))
2382                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2383
2384 error_param:
2385         return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING,
2386                                      v_ret, NULL, 0);
2387 }
2388
2389 /**
2390  * ice_vc_dis_vlan_stripping
2391  * @vf: pointer to the VF info
2392  *
2393  * Disable VLAN header stripping for a given VF
2394  */
2395 static int ice_vc_dis_vlan_stripping(struct ice_vf *vf)
2396 {
2397         enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2398         struct ice_vsi *vsi;
2399
2400         if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
2401                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2402                 goto error_param;
2403         }
2404
2405         if (!ice_vf_vlan_offload_ena(vf->driver_caps)) {
2406                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2407                 goto error_param;
2408         }
2409
2410         vsi = ice_get_vf_vsi(vf);
2411         if (!vsi) {
2412                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2413                 goto error_param;
2414         }
2415
2416         if (vsi->inner_vlan_ops.dis_stripping(vsi))
2417                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2418
2419 error_param:
2420         return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING,
2421                                      v_ret, NULL, 0);
2422 }
2423
2424 /**
2425  * ice_vf_init_vlan_stripping - enable/disable VLAN stripping on initialization
2426  * @vf: VF to enable/disable VLAN stripping for on initialization
2427  *
2428  * Set the default for VLAN stripping based on whether a port VLAN is configured
2429  * and the current VLAN mode of the device.
2430  */
2431 static int ice_vf_init_vlan_stripping(struct ice_vf *vf)
2432 {
2433         struct ice_vsi *vsi = ice_get_vf_vsi(vf);
2434
2435         if (!vsi)
2436                 return -EINVAL;
2437
2438         /* don't modify stripping if port VLAN is configured in SVM since the
2439          * port VLAN is based on the inner/single VLAN in SVM
2440          */
2441         if (ice_vf_is_port_vlan_ena(vf) && !ice_is_dvm_ena(&vsi->back->hw))
2442                 return 0;
2443
2444         if (ice_vf_vlan_offload_ena(vf->driver_caps))
2445                 return vsi->inner_vlan_ops.ena_stripping(vsi, ETH_P_8021Q);
2446         else
2447                 return vsi->inner_vlan_ops.dis_stripping(vsi);
2448 }
2449
2450 static u16 ice_vc_get_max_vlan_fltrs(struct ice_vf *vf)
2451 {
2452         if (vf->trusted)
2453                 return VLAN_N_VID;
2454         else
2455                 return ICE_MAX_VLAN_PER_VF;
2456 }
2457
2458 /**
2459  * ice_vf_outer_vlan_not_allowed - check if outer VLAN can be used
2460  * @vf: VF that being checked for
2461  *
2462  * When the device is in double VLAN mode, check whether or not the outer VLAN
2463  * is allowed.
2464  */
2465 static bool ice_vf_outer_vlan_not_allowed(struct ice_vf *vf)
2466 {
2467         if (ice_vf_is_port_vlan_ena(vf))
2468                 return true;
2469
2470         return false;
2471 }
2472
2473 /**
2474  * ice_vc_set_dvm_caps - set VLAN capabilities when the device is in DVM
2475  * @vf: VF that capabilities are being set for
2476  * @caps: VLAN capabilities to populate
2477  *
2478  * Determine VLAN capabilities support based on whether a port VLAN is
2479  * configured. If a port VLAN is configured then the VF should use the inner
2480  * filtering/offload capabilities since the port VLAN is using the outer VLAN
2481  * capabilies.
2482  */
2483 static void
2484 ice_vc_set_dvm_caps(struct ice_vf *vf, struct virtchnl_vlan_caps *caps)
2485 {
2486         struct virtchnl_vlan_supported_caps *supported_caps;
2487
2488         if (ice_vf_outer_vlan_not_allowed(vf)) {
2489                 /* until support for inner VLAN filtering is added when a port
2490                  * VLAN is configured, only support software offloaded inner
2491                  * VLANs when a port VLAN is confgured in DVM
2492                  */
2493                 supported_caps = &caps->filtering.filtering_support;
2494                 supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED;
2495
2496                 supported_caps = &caps->offloads.stripping_support;
2497                 supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100 |
2498                                         VIRTCHNL_VLAN_TOGGLE |
2499                                         VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
2500                 supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
2501
2502                 supported_caps = &caps->offloads.insertion_support;
2503                 supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100 |
2504                                         VIRTCHNL_VLAN_TOGGLE |
2505                                         VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
2506                 supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
2507
2508                 caps->offloads.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100;
2509                 caps->offloads.ethertype_match =
2510                         VIRTCHNL_ETHERTYPE_STRIPPING_MATCHES_INSERTION;
2511         } else {
2512                 supported_caps = &caps->filtering.filtering_support;
2513                 supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED;
2514                 supported_caps->outer = VIRTCHNL_VLAN_ETHERTYPE_8100 |
2515                                         VIRTCHNL_VLAN_ETHERTYPE_88A8 |
2516                                         VIRTCHNL_VLAN_ETHERTYPE_9100 |
2517                                         VIRTCHNL_VLAN_ETHERTYPE_AND;
2518                 caps->filtering.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100 |
2519                                                  VIRTCHNL_VLAN_ETHERTYPE_88A8 |
2520                                                  VIRTCHNL_VLAN_ETHERTYPE_9100;
2521
2522                 supported_caps = &caps->offloads.stripping_support;
2523                 supported_caps->inner = VIRTCHNL_VLAN_TOGGLE |
2524                                         VIRTCHNL_VLAN_ETHERTYPE_8100 |
2525                                         VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
2526                 supported_caps->outer = VIRTCHNL_VLAN_TOGGLE |
2527                                         VIRTCHNL_VLAN_ETHERTYPE_8100 |
2528                                         VIRTCHNL_VLAN_ETHERTYPE_88A8 |
2529                                         VIRTCHNL_VLAN_ETHERTYPE_9100 |
2530                                         VIRTCHNL_VLAN_ETHERTYPE_XOR |
2531                                         VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2_2;
2532
2533                 supported_caps = &caps->offloads.insertion_support;
2534                 supported_caps->inner = VIRTCHNL_VLAN_TOGGLE |
2535                                         VIRTCHNL_VLAN_ETHERTYPE_8100 |
2536                                         VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
2537                 supported_caps->outer = VIRTCHNL_VLAN_TOGGLE |
2538                                         VIRTCHNL_VLAN_ETHERTYPE_8100 |
2539                                         VIRTCHNL_VLAN_ETHERTYPE_88A8 |
2540                                         VIRTCHNL_VLAN_ETHERTYPE_9100 |
2541                                         VIRTCHNL_VLAN_ETHERTYPE_XOR |
2542                                         VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2;
2543
2544                 caps->offloads.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100;
2545
2546                 caps->offloads.ethertype_match =
2547                         VIRTCHNL_ETHERTYPE_STRIPPING_MATCHES_INSERTION;
2548         }
2549
2550         caps->filtering.max_filters = ice_vc_get_max_vlan_fltrs(vf);
2551 }
2552
2553 /**
2554  * ice_vc_set_svm_caps - set VLAN capabilities when the device is in SVM
2555  * @vf: VF that capabilities are being set for
2556  * @caps: VLAN capabilities to populate
2557  *
2558  * Determine VLAN capabilities support based on whether a port VLAN is
2559  * configured. If a port VLAN is configured then the VF does not have any VLAN
2560  * filtering or offload capabilities since the port VLAN is using the inner VLAN
2561  * capabilities in single VLAN mode (SVM). Otherwise allow the VF to use inner
2562  * VLAN fitlering and offload capabilities.
2563  */
2564 static void
2565 ice_vc_set_svm_caps(struct ice_vf *vf, struct virtchnl_vlan_caps *caps)
2566 {
2567         struct virtchnl_vlan_supported_caps *supported_caps;
2568
2569         if (ice_vf_is_port_vlan_ena(vf)) {
2570                 supported_caps = &caps->filtering.filtering_support;
2571                 supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED;
2572                 supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
2573
2574                 supported_caps = &caps->offloads.stripping_support;
2575                 supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED;
2576                 supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
2577
2578                 supported_caps = &caps->offloads.insertion_support;
2579                 supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED;
2580                 supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
2581
2582                 caps->offloads.ethertype_init = VIRTCHNL_VLAN_UNSUPPORTED;
2583                 caps->offloads.ethertype_match = VIRTCHNL_VLAN_UNSUPPORTED;
2584                 caps->filtering.max_filters = 0;
2585         } else {
2586                 supported_caps = &caps->filtering.filtering_support;
2587                 supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100;
2588                 supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
2589                 caps->filtering.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100;
2590
2591                 supported_caps = &caps->offloads.stripping_support;
2592                 supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100 |
2593                                         VIRTCHNL_VLAN_TOGGLE |
2594                                         VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
2595                 supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
2596
2597                 supported_caps = &caps->offloads.insertion_support;
2598                 supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100 |
2599                                         VIRTCHNL_VLAN_TOGGLE |
2600                                         VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
2601                 supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
2602
2603                 caps->offloads.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100;
2604                 caps->offloads.ethertype_match =
2605                         VIRTCHNL_ETHERTYPE_STRIPPING_MATCHES_INSERTION;
2606                 caps->filtering.max_filters = ice_vc_get_max_vlan_fltrs(vf);
2607         }
2608 }
2609
2610 /**
2611  * ice_vc_get_offload_vlan_v2_caps - determine VF's VLAN capabilities
2612  * @vf: VF to determine VLAN capabilities for
2613  *
2614  * This will only be called if the VF and PF successfully negotiated
2615  * VIRTCHNL_VF_OFFLOAD_VLAN_V2.
2616  *
2617  * Set VLAN capabilities based on the current VLAN mode and whether a port VLAN
2618  * is configured or not.
2619  */
2620 static int ice_vc_get_offload_vlan_v2_caps(struct ice_vf *vf)
2621 {
2622         enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2623         struct virtchnl_vlan_caps *caps = NULL;
2624         int err, len = 0;
2625
2626         if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
2627                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2628                 goto out;
2629         }
2630
2631         caps = kzalloc(sizeof(*caps), GFP_KERNEL);
2632         if (!caps) {
2633                 v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
2634                 goto out;
2635         }
2636         len = sizeof(*caps);
2637
2638         if (ice_is_dvm_ena(&vf->pf->hw))
2639                 ice_vc_set_dvm_caps(vf, caps);
2640         else
2641                 ice_vc_set_svm_caps(vf, caps);
2642
2643         /* store negotiated caps to prevent invalid VF messages */
2644         memcpy(&vf->vlan_v2_caps, caps, sizeof(*caps));
2645
2646 out:
2647         err = ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS,
2648                                     v_ret, (u8 *)caps, len);
2649         kfree(caps);
2650         return err;
2651 }
2652
2653 /**
2654  * ice_vc_validate_vlan_tpid - validate VLAN TPID
2655  * @filtering_caps: negotiated/supported VLAN filtering capabilities
2656  * @tpid: VLAN TPID used for validation
2657  *
2658  * Convert the VLAN TPID to a VIRTCHNL_VLAN_ETHERTYPE_* and then compare against
2659  * the negotiated/supported filtering caps to see if the VLAN TPID is valid.
2660  */
2661 static bool ice_vc_validate_vlan_tpid(u16 filtering_caps, u16 tpid)
2662 {
2663         enum virtchnl_vlan_support vlan_ethertype = VIRTCHNL_VLAN_UNSUPPORTED;
2664
2665         switch (tpid) {
2666         case ETH_P_8021Q:
2667                 vlan_ethertype = VIRTCHNL_VLAN_ETHERTYPE_8100;
2668                 break;
2669         case ETH_P_8021AD:
2670                 vlan_ethertype = VIRTCHNL_VLAN_ETHERTYPE_88A8;
2671                 break;
2672         case ETH_P_QINQ1:
2673                 vlan_ethertype = VIRTCHNL_VLAN_ETHERTYPE_9100;
2674                 break;
2675         }
2676
2677         if (!(filtering_caps & vlan_ethertype))
2678                 return false;
2679
2680         return true;
2681 }
2682
2683 /**
2684  * ice_vc_is_valid_vlan - validate the virtchnl_vlan
2685  * @vc_vlan: virtchnl_vlan to validate
2686  *
2687  * If the VLAN TCI and VLAN TPID are 0, then this filter is invalid, so return
2688  * false. Otherwise return true.
2689  */
2690 static bool ice_vc_is_valid_vlan(struct virtchnl_vlan *vc_vlan)
2691 {
2692         if (!vc_vlan->tci || !vc_vlan->tpid)
2693                 return false;
2694
2695         return true;
2696 }
2697
2698 /**
2699  * ice_vc_validate_vlan_filter_list - validate the filter list from the VF
2700  * @vfc: negotiated/supported VLAN filtering capabilities
2701  * @vfl: VLAN filter list from VF to validate
2702  *
2703  * Validate all of the filters in the VLAN filter list from the VF. If any of
2704  * the checks fail then return false. Otherwise return true.
2705  */
2706 static bool
2707 ice_vc_validate_vlan_filter_list(struct virtchnl_vlan_filtering_caps *vfc,
2708                                  struct virtchnl_vlan_filter_list_v2 *vfl)
2709 {
2710         u16 i;
2711
2712         if (!vfl->num_elements)
2713                 return false;
2714
2715         for (i = 0; i < vfl->num_elements; i++) {
2716                 struct virtchnl_vlan_supported_caps *filtering_support =
2717                         &vfc->filtering_support;
2718                 struct virtchnl_vlan_filter *vlan_fltr = &vfl->filters[i];
2719                 struct virtchnl_vlan *outer = &vlan_fltr->outer;
2720                 struct virtchnl_vlan *inner = &vlan_fltr->inner;
2721
2722                 if ((ice_vc_is_valid_vlan(outer) &&
2723                      filtering_support->outer == VIRTCHNL_VLAN_UNSUPPORTED) ||
2724                     (ice_vc_is_valid_vlan(inner) &&
2725                      filtering_support->inner == VIRTCHNL_VLAN_UNSUPPORTED))
2726                         return false;
2727
2728                 if ((outer->tci_mask &&
2729                      !(filtering_support->outer & VIRTCHNL_VLAN_FILTER_MASK)) ||
2730                     (inner->tci_mask &&
2731                      !(filtering_support->inner & VIRTCHNL_VLAN_FILTER_MASK)))
2732                         return false;
2733
2734                 if (((outer->tci & VLAN_PRIO_MASK) &&
2735                      !(filtering_support->outer & VIRTCHNL_VLAN_PRIO)) ||
2736                     ((inner->tci & VLAN_PRIO_MASK) &&
2737                      !(filtering_support->inner & VIRTCHNL_VLAN_PRIO)))
2738                         return false;
2739
2740                 if ((ice_vc_is_valid_vlan(outer) &&
2741                      !ice_vc_validate_vlan_tpid(filtering_support->outer,
2742                                                 outer->tpid)) ||
2743                     (ice_vc_is_valid_vlan(inner) &&
2744                      !ice_vc_validate_vlan_tpid(filtering_support->inner,
2745                                                 inner->tpid)))
2746                         return false;
2747         }
2748
2749         return true;
2750 }
2751
2752 /**
2753  * ice_vc_to_vlan - transform from struct virtchnl_vlan to struct ice_vlan
2754  * @vc_vlan: struct virtchnl_vlan to transform
2755  */
2756 static struct ice_vlan ice_vc_to_vlan(struct virtchnl_vlan *vc_vlan)
2757 {
2758         struct ice_vlan vlan = { 0 };
2759
2760         vlan.prio = (vc_vlan->tci & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
2761         vlan.vid = vc_vlan->tci & VLAN_VID_MASK;
2762         vlan.tpid = vc_vlan->tpid;
2763
2764         return vlan;
2765 }
2766
2767 /**
2768  * ice_vc_vlan_action - action to perform on the virthcnl_vlan
2769  * @vsi: VF's VSI used to perform the action
2770  * @vlan_action: function to perform the action with (i.e. add/del)
2771  * @vlan: VLAN filter to perform the action with
2772  */
2773 static int
2774 ice_vc_vlan_action(struct ice_vsi *vsi,
2775                    int (*vlan_action)(struct ice_vsi *, struct ice_vlan *),
2776                    struct ice_vlan *vlan)
2777 {
2778         int err;
2779
2780         err = vlan_action(vsi, vlan);
2781         if (err)
2782                 return err;
2783
2784         return 0;
2785 }
2786
2787 /**
2788  * ice_vc_del_vlans - delete VLAN(s) from the virtchnl filter list
2789  * @vf: VF used to delete the VLAN(s)
2790  * @vsi: VF's VSI used to delete the VLAN(s)
2791  * @vfl: virthchnl filter list used to delete the filters
2792  */
2793 static int
2794 ice_vc_del_vlans(struct ice_vf *vf, struct ice_vsi *vsi,
2795                  struct virtchnl_vlan_filter_list_v2 *vfl)
2796 {
2797         bool vlan_promisc = ice_is_vlan_promisc_allowed(vf);
2798         int err;
2799         u16 i;
2800
2801         for (i = 0; i < vfl->num_elements; i++) {
2802                 struct virtchnl_vlan_filter *vlan_fltr = &vfl->filters[i];
2803                 struct virtchnl_vlan *vc_vlan;
2804
2805                 vc_vlan = &vlan_fltr->outer;
2806                 if (ice_vc_is_valid_vlan(vc_vlan)) {
2807                         struct ice_vlan vlan = ice_vc_to_vlan(vc_vlan);
2808
2809                         err = ice_vc_vlan_action(vsi,
2810                                                  vsi->outer_vlan_ops.del_vlan,
2811                                                  &vlan);
2812                         if (err)
2813                                 return err;
2814
2815                         if (vlan_promisc)
2816                                 ice_vf_dis_vlan_promisc(vsi, &vlan);
2817                 }
2818
2819                 vc_vlan = &vlan_fltr->inner;
2820                 if (ice_vc_is_valid_vlan(vc_vlan)) {
2821                         struct ice_vlan vlan = ice_vc_to_vlan(vc_vlan);
2822
2823                         err = ice_vc_vlan_action(vsi,
2824                                                  vsi->inner_vlan_ops.del_vlan,
2825                                                  &vlan);
2826                         if (err)
2827                                 return err;
2828
2829                         /* no support for VLAN promiscuous on inner VLAN unless
2830                          * we are in Single VLAN Mode (SVM)
2831                          */
2832                         if (!ice_is_dvm_ena(&vsi->back->hw) && vlan_promisc)
2833                                 ice_vf_dis_vlan_promisc(vsi, &vlan);
2834                 }
2835         }
2836
2837         return 0;
2838 }
2839
2840 /**
2841  * ice_vc_remove_vlan_v2_msg - virtchnl handler for VIRTCHNL_OP_DEL_VLAN_V2
2842  * @vf: VF the message was received from
2843  * @msg: message received from the VF
2844  */
2845 static int ice_vc_remove_vlan_v2_msg(struct ice_vf *vf, u8 *msg)
2846 {
2847         struct virtchnl_vlan_filter_list_v2 *vfl =
2848                 (struct virtchnl_vlan_filter_list_v2 *)msg;
2849         enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2850         struct ice_vsi *vsi;
2851
2852         if (!ice_vc_validate_vlan_filter_list(&vf->vlan_v2_caps.filtering,
2853                                               vfl)) {
2854                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2855                 goto out;
2856         }
2857
2858         if (!ice_vc_isvalid_vsi_id(vf, vfl->vport_id)) {
2859                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2860                 goto out;
2861         }
2862
2863         vsi = ice_get_vf_vsi(vf);
2864         if (!vsi) {
2865                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2866                 goto out;
2867         }
2868
2869         if (ice_vc_del_vlans(vf, vsi, vfl))
2870                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2871
2872 out:
2873         return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DEL_VLAN_V2, v_ret, NULL,
2874                                      0);
2875 }
2876
2877 /**
2878  * ice_vc_add_vlans - add VLAN(s) from the virtchnl filter list
2879  * @vf: VF used to add the VLAN(s)
2880  * @vsi: VF's VSI used to add the VLAN(s)
2881  * @vfl: virthchnl filter list used to add the filters
2882  */
2883 static int
2884 ice_vc_add_vlans(struct ice_vf *vf, struct ice_vsi *vsi,
2885                  struct virtchnl_vlan_filter_list_v2 *vfl)
2886 {
2887         bool vlan_promisc = ice_is_vlan_promisc_allowed(vf);
2888         int err;
2889         u16 i;
2890
2891         for (i = 0; i < vfl->num_elements; i++) {
2892                 struct virtchnl_vlan_filter *vlan_fltr = &vfl->filters[i];
2893                 struct virtchnl_vlan *vc_vlan;
2894
2895                 vc_vlan = &vlan_fltr->outer;
2896                 if (ice_vc_is_valid_vlan(vc_vlan)) {
2897                         struct ice_vlan vlan = ice_vc_to_vlan(vc_vlan);
2898
2899                         err = ice_vc_vlan_action(vsi,
2900                                                  vsi->outer_vlan_ops.add_vlan,
2901                                                  &vlan);
2902                         if (err)
2903                                 return err;
2904
2905                         if (vlan_promisc) {
2906                                 err = ice_vf_ena_vlan_promisc(vsi, &vlan);
2907                                 if (err)
2908                                         return err;
2909                         }
2910                 }
2911
2912                 vc_vlan = &vlan_fltr->inner;
2913                 if (ice_vc_is_valid_vlan(vc_vlan)) {
2914                         struct ice_vlan vlan = ice_vc_to_vlan(vc_vlan);
2915
2916                         err = ice_vc_vlan_action(vsi,
2917                                                  vsi->inner_vlan_ops.add_vlan,
2918                                                  &vlan);
2919                         if (err)
2920                                 return err;
2921
2922                         /* no support for VLAN promiscuous on inner VLAN unless
2923                          * we are in Single VLAN Mode (SVM)
2924                          */
2925                         if (!ice_is_dvm_ena(&vsi->back->hw) && vlan_promisc) {
2926                                 err = ice_vf_ena_vlan_promisc(vsi, &vlan);
2927                                 if (err)
2928                                         return err;
2929                         }
2930                 }
2931         }
2932
2933         return 0;
2934 }
2935
2936 /**
2937  * ice_vc_validate_add_vlan_filter_list - validate add filter list from the VF
2938  * @vsi: VF VSI used to get number of existing VLAN filters
2939  * @vfc: negotiated/supported VLAN filtering capabilities
2940  * @vfl: VLAN filter list from VF to validate
2941  *
2942  * Validate all of the filters in the VLAN filter list from the VF during the
2943  * VIRTCHNL_OP_ADD_VLAN_V2 opcode. If any of the checks fail then return false.
2944  * Otherwise return true.
2945  */
2946 static bool
2947 ice_vc_validate_add_vlan_filter_list(struct ice_vsi *vsi,
2948                                      struct virtchnl_vlan_filtering_caps *vfc,
2949                                      struct virtchnl_vlan_filter_list_v2 *vfl)
2950 {
2951         u16 num_requested_filters = vsi->num_vlan + vfl->num_elements;
2952
2953         if (num_requested_filters > vfc->max_filters)
2954                 return false;
2955
2956         return ice_vc_validate_vlan_filter_list(vfc, vfl);
2957 }
2958
2959 /**
2960  * ice_vc_add_vlan_v2_msg - virtchnl handler for VIRTCHNL_OP_ADD_VLAN_V2
2961  * @vf: VF the message was received from
2962  * @msg: message received from the VF
2963  */
2964 static int ice_vc_add_vlan_v2_msg(struct ice_vf *vf, u8 *msg)
2965 {
2966         enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2967         struct virtchnl_vlan_filter_list_v2 *vfl =
2968                 (struct virtchnl_vlan_filter_list_v2 *)msg;
2969         struct ice_vsi *vsi;
2970
2971         if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
2972                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2973                 goto out;
2974         }
2975
2976         if (!ice_vc_isvalid_vsi_id(vf, vfl->vport_id)) {
2977                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2978                 goto out;
2979         }
2980
2981         vsi = ice_get_vf_vsi(vf);
2982         if (!vsi) {
2983                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2984                 goto out;
2985         }
2986
2987         if (!ice_vc_validate_add_vlan_filter_list(vsi,
2988                                                   &vf->vlan_v2_caps.filtering,
2989                                                   vfl)) {
2990                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2991                 goto out;
2992         }
2993
2994         if (ice_vc_add_vlans(vf, vsi, vfl))
2995                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2996
2997 out:
2998         return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_VLAN_V2, v_ret, NULL,
2999                                      0);
3000 }
3001
3002 /**
3003  * ice_vc_valid_vlan_setting - validate VLAN setting
3004  * @negotiated_settings: negotiated VLAN settings during VF init
3005  * @ethertype_setting: ethertype(s) requested for the VLAN setting
3006  */
3007 static bool
3008 ice_vc_valid_vlan_setting(u32 negotiated_settings, u32 ethertype_setting)
3009 {
3010         if (ethertype_setting && !(negotiated_settings & ethertype_setting))
3011                 return false;
3012
3013         /* only allow a single VIRTCHNL_VLAN_ETHERTYPE if
3014          * VIRTHCNL_VLAN_ETHERTYPE_AND is not negotiated/supported
3015          */
3016         if (!(negotiated_settings & VIRTCHNL_VLAN_ETHERTYPE_AND) &&
3017             hweight32(ethertype_setting) > 1)
3018                 return false;
3019
3020         /* ability to modify the VLAN setting was not negotiated */
3021         if (!(negotiated_settings & VIRTCHNL_VLAN_TOGGLE))
3022                 return false;
3023
3024         return true;
3025 }
3026
3027 /**
3028  * ice_vc_valid_vlan_setting_msg - validate the VLAN setting message
3029  * @caps: negotiated VLAN settings during VF init
3030  * @msg: message to validate
3031  *
3032  * Used to validate any VLAN virtchnl message sent as a
3033  * virtchnl_vlan_setting structure. Validates the message against the
3034  * negotiated/supported caps during VF driver init.
3035  */
3036 static bool
3037 ice_vc_valid_vlan_setting_msg(struct virtchnl_vlan_supported_caps *caps,
3038                               struct virtchnl_vlan_setting *msg)
3039 {
3040         if ((!msg->outer_ethertype_setting &&
3041              !msg->inner_ethertype_setting) ||
3042             (!caps->outer && !caps->inner))
3043                 return false;
3044
3045         if (msg->outer_ethertype_setting &&
3046             !ice_vc_valid_vlan_setting(caps->outer,
3047                                        msg->outer_ethertype_setting))
3048                 return false;
3049
3050         if (msg->inner_ethertype_setting &&
3051             !ice_vc_valid_vlan_setting(caps->inner,
3052                                        msg->inner_ethertype_setting))
3053                 return false;
3054
3055         return true;
3056 }
3057
3058 /**
3059  * ice_vc_get_tpid - transform from VIRTCHNL_VLAN_ETHERTYPE_* to VLAN TPID
3060  * @ethertype_setting: VIRTCHNL_VLAN_ETHERTYPE_* used to get VLAN TPID
3061  * @tpid: VLAN TPID to populate
3062  */
3063 static int ice_vc_get_tpid(u32 ethertype_setting, u16 *tpid)
3064 {
3065         switch (ethertype_setting) {
3066         case VIRTCHNL_VLAN_ETHERTYPE_8100:
3067                 *tpid = ETH_P_8021Q;
3068                 break;
3069         case VIRTCHNL_VLAN_ETHERTYPE_88A8:
3070                 *tpid = ETH_P_8021AD;
3071                 break;
3072         case VIRTCHNL_VLAN_ETHERTYPE_9100:
3073                 *tpid = ETH_P_QINQ1;
3074                 break;
3075         default:
3076                 *tpid = 0;
3077                 return -EINVAL;
3078         }
3079
3080         return 0;
3081 }
3082
3083 /**
3084  * ice_vc_ena_vlan_offload - enable VLAN offload based on the ethertype_setting
3085  * @vsi: VF's VSI used to enable the VLAN offload
3086  * @ena_offload: function used to enable the VLAN offload
3087  * @ethertype_setting: VIRTCHNL_VLAN_ETHERTYPE_* to enable offloads for
3088  */
3089 static int
3090 ice_vc_ena_vlan_offload(struct ice_vsi *vsi,
3091                         int (*ena_offload)(struct ice_vsi *vsi, u16 tpid),
3092                         u32 ethertype_setting)
3093 {
3094         u16 tpid;
3095         int err;
3096
3097         err = ice_vc_get_tpid(ethertype_setting, &tpid);
3098         if (err)
3099                 return err;
3100
3101         err = ena_offload(vsi, tpid);
3102         if (err)
3103                 return err;
3104
3105         return 0;
3106 }
3107
3108 #define ICE_L2TSEL_QRX_CONTEXT_REG_IDX  3
3109 #define ICE_L2TSEL_BIT_OFFSET           23
3110 enum ice_l2tsel {
3111         ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG2_2ND,
3112         ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG1,
3113 };
3114
3115 /**
3116  * ice_vsi_update_l2tsel - update l2tsel field for all Rx rings on this VSI
3117  * @vsi: VSI used to update l2tsel on
3118  * @l2tsel: l2tsel setting requested
3119  *
3120  * Use the l2tsel setting to update all of the Rx queue context bits for l2tsel.
3121  * This will modify which descriptor field the first offloaded VLAN will be
3122  * stripped into.
3123  */
3124 static void ice_vsi_update_l2tsel(struct ice_vsi *vsi, enum ice_l2tsel l2tsel)
3125 {
3126         struct ice_hw *hw = &vsi->back->hw;
3127         u32 l2tsel_bit;
3128         int i;
3129
3130         if (l2tsel == ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG2_2ND)
3131                 l2tsel_bit = 0;
3132         else
3133                 l2tsel_bit = BIT(ICE_L2TSEL_BIT_OFFSET);
3134
3135         for (i = 0; i < vsi->alloc_rxq; i++) {
3136                 u16 pfq = vsi->rxq_map[i];
3137                 u32 qrx_context_offset;
3138                 u32 regval;
3139
3140                 qrx_context_offset =
3141                         QRX_CONTEXT(ICE_L2TSEL_QRX_CONTEXT_REG_IDX, pfq);
3142
3143                 regval = rd32(hw, qrx_context_offset);
3144                 regval &= ~BIT(ICE_L2TSEL_BIT_OFFSET);
3145                 regval |= l2tsel_bit;
3146                 wr32(hw, qrx_context_offset, regval);
3147         }
3148 }
3149
3150 /**
3151  * ice_vc_ena_vlan_stripping_v2_msg
3152  * @vf: VF the message was received from
3153  * @msg: message received from the VF
3154  *
3155  * virthcnl handler for VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2
3156  */
3157 static int ice_vc_ena_vlan_stripping_v2_msg(struct ice_vf *vf, u8 *msg)
3158 {
3159         enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
3160         struct virtchnl_vlan_supported_caps *stripping_support;
3161         struct virtchnl_vlan_setting *strip_msg =
3162                 (struct virtchnl_vlan_setting *)msg;
3163         u32 ethertype_setting;
3164         struct ice_vsi *vsi;
3165
3166         if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
3167                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3168                 goto out;
3169         }
3170
3171         if (!ice_vc_isvalid_vsi_id(vf, strip_msg->vport_id)) {
3172                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3173                 goto out;
3174         }
3175
3176         vsi = ice_get_vf_vsi(vf);
3177         if (!vsi) {
3178                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3179                 goto out;
3180         }
3181
3182         stripping_support = &vf->vlan_v2_caps.offloads.stripping_support;
3183         if (!ice_vc_valid_vlan_setting_msg(stripping_support, strip_msg)) {
3184                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3185                 goto out;
3186         }
3187
3188         ethertype_setting = strip_msg->outer_ethertype_setting;
3189         if (ethertype_setting) {
3190                 if (ice_vc_ena_vlan_offload(vsi,
3191                                             vsi->outer_vlan_ops.ena_stripping,
3192                                             ethertype_setting)) {
3193                         v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3194                         goto out;
3195                 } else {
3196                         enum ice_l2tsel l2tsel =
3197                                 ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG2_2ND;
3198
3199                         /* PF tells the VF that the outer VLAN tag is always
3200                          * extracted to VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2_2 and
3201                          * inner is always extracted to
3202                          * VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1. This is needed to
3203                          * support outer stripping so the first tag always ends
3204                          * up in L2TAG2_2ND and the second/inner tag, if
3205                          * enabled, is extracted in L2TAG1.
3206                          */
3207                         ice_vsi_update_l2tsel(vsi, l2tsel);
3208                 }
3209         }
3210
3211         ethertype_setting = strip_msg->inner_ethertype_setting;
3212         if (ethertype_setting &&
3213             ice_vc_ena_vlan_offload(vsi, vsi->inner_vlan_ops.ena_stripping,
3214                                     ethertype_setting)) {
3215                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3216                 goto out;
3217         }
3218
3219 out:
3220         return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2,
3221                                      v_ret, NULL, 0);
3222 }
3223
3224 /**
3225  * ice_vc_dis_vlan_stripping_v2_msg
3226  * @vf: VF the message was received from
3227  * @msg: message received from the VF
3228  *
3229  * virthcnl handler for VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2
3230  */
3231 static int ice_vc_dis_vlan_stripping_v2_msg(struct ice_vf *vf, u8 *msg)
3232 {
3233         enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
3234         struct virtchnl_vlan_supported_caps *stripping_support;
3235         struct virtchnl_vlan_setting *strip_msg =
3236                 (struct virtchnl_vlan_setting *)msg;
3237         u32 ethertype_setting;
3238         struct ice_vsi *vsi;
3239
3240         if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
3241                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3242                 goto out;
3243         }
3244
3245         if (!ice_vc_isvalid_vsi_id(vf, strip_msg->vport_id)) {
3246                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3247                 goto out;
3248         }
3249
3250         vsi = ice_get_vf_vsi(vf);
3251         if (!vsi) {
3252                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3253                 goto out;
3254         }
3255
3256         stripping_support = &vf->vlan_v2_caps.offloads.stripping_support;
3257         if (!ice_vc_valid_vlan_setting_msg(stripping_support, strip_msg)) {
3258                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3259                 goto out;
3260         }
3261
3262         ethertype_setting = strip_msg->outer_ethertype_setting;
3263         if (ethertype_setting) {
3264                 if (vsi->outer_vlan_ops.dis_stripping(vsi)) {
3265                         v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3266                         goto out;
3267                 } else {
3268                         enum ice_l2tsel l2tsel =
3269                                 ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG1;
3270
3271                         /* PF tells the VF that the outer VLAN tag is always
3272                          * extracted to VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2_2 and
3273                          * inner is always extracted to
3274                          * VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1. This is needed to
3275                          * support inner stripping while outer stripping is
3276                          * disabled so that the first and only tag is extracted
3277                          * in L2TAG1.
3278                          */
3279                         ice_vsi_update_l2tsel(vsi, l2tsel);
3280                 }
3281         }
3282
3283         ethertype_setting = strip_msg->inner_ethertype_setting;
3284         if (ethertype_setting && vsi->inner_vlan_ops.dis_stripping(vsi)) {
3285                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3286                 goto out;
3287         }
3288
3289 out:
3290         return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2,
3291                                      v_ret, NULL, 0);
3292 }
3293
3294 /**
3295  * ice_vc_ena_vlan_insertion_v2_msg
3296  * @vf: VF the message was received from
3297  * @msg: message received from the VF
3298  *
3299  * virthcnl handler for VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2
3300  */
3301 static int ice_vc_ena_vlan_insertion_v2_msg(struct ice_vf *vf, u8 *msg)
3302 {
3303         enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
3304         struct virtchnl_vlan_supported_caps *insertion_support;
3305         struct virtchnl_vlan_setting *insertion_msg =
3306                 (struct virtchnl_vlan_setting *)msg;
3307         u32 ethertype_setting;
3308         struct ice_vsi *vsi;
3309
3310         if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
3311                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3312                 goto out;
3313         }
3314
3315         if (!ice_vc_isvalid_vsi_id(vf, insertion_msg->vport_id)) {
3316                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3317                 goto out;
3318         }
3319
3320         vsi = ice_get_vf_vsi(vf);
3321         if (!vsi) {
3322                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3323                 goto out;
3324         }
3325
3326         insertion_support = &vf->vlan_v2_caps.offloads.insertion_support;
3327         if (!ice_vc_valid_vlan_setting_msg(insertion_support, insertion_msg)) {
3328                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3329                 goto out;
3330         }
3331
3332         ethertype_setting = insertion_msg->outer_ethertype_setting;
3333         if (ethertype_setting &&
3334             ice_vc_ena_vlan_offload(vsi, vsi->outer_vlan_ops.ena_insertion,
3335                                     ethertype_setting)) {
3336                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3337                 goto out;
3338         }
3339
3340         ethertype_setting = insertion_msg->inner_ethertype_setting;
3341         if (ethertype_setting &&
3342             ice_vc_ena_vlan_offload(vsi, vsi->inner_vlan_ops.ena_insertion,
3343                                     ethertype_setting)) {
3344                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3345                 goto out;
3346         }
3347
3348 out:
3349         return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2,
3350                                      v_ret, NULL, 0);
3351 }
3352
3353 /**
3354  * ice_vc_dis_vlan_insertion_v2_msg
3355  * @vf: VF the message was received from
3356  * @msg: message received from the VF
3357  *
3358  * virthcnl handler for VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2
3359  */
3360 static int ice_vc_dis_vlan_insertion_v2_msg(struct ice_vf *vf, u8 *msg)
3361 {
3362         enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
3363         struct virtchnl_vlan_supported_caps *insertion_support;
3364         struct virtchnl_vlan_setting *insertion_msg =
3365                 (struct virtchnl_vlan_setting *)msg;
3366         u32 ethertype_setting;
3367         struct ice_vsi *vsi;
3368
3369         if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
3370                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3371                 goto out;
3372         }
3373
3374         if (!ice_vc_isvalid_vsi_id(vf, insertion_msg->vport_id)) {
3375                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3376                 goto out;
3377         }
3378
3379         vsi = ice_get_vf_vsi(vf);
3380         if (!vsi) {
3381                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3382                 goto out;
3383         }
3384
3385         insertion_support = &vf->vlan_v2_caps.offloads.insertion_support;
3386         if (!ice_vc_valid_vlan_setting_msg(insertion_support, insertion_msg)) {
3387                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3388                 goto out;
3389         }
3390
3391         ethertype_setting = insertion_msg->outer_ethertype_setting;
3392         if (ethertype_setting && vsi->outer_vlan_ops.dis_insertion(vsi)) {
3393                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3394                 goto out;
3395         }
3396
3397         ethertype_setting = insertion_msg->inner_ethertype_setting;
3398         if (ethertype_setting && vsi->inner_vlan_ops.dis_insertion(vsi)) {
3399                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3400                 goto out;
3401         }
3402
3403 out:
3404         return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2,
3405                                      v_ret, NULL, 0);
3406 }
3407
3408 static const struct ice_virtchnl_ops ice_virtchnl_dflt_ops = {
3409         .get_ver_msg = ice_vc_get_ver_msg,
3410         .get_vf_res_msg = ice_vc_get_vf_res_msg,
3411         .reset_vf = ice_vc_reset_vf_msg,
3412         .add_mac_addr_msg = ice_vc_add_mac_addr_msg,
3413         .del_mac_addr_msg = ice_vc_del_mac_addr_msg,
3414         .cfg_qs_msg = ice_vc_cfg_qs_msg,
3415         .ena_qs_msg = ice_vc_ena_qs_msg,
3416         .dis_qs_msg = ice_vc_dis_qs_msg,
3417         .request_qs_msg = ice_vc_request_qs_msg,
3418         .cfg_irq_map_msg = ice_vc_cfg_irq_map_msg,
3419         .config_rss_key = ice_vc_config_rss_key,
3420         .config_rss_lut = ice_vc_config_rss_lut,
3421         .get_stats_msg = ice_vc_get_stats_msg,
3422         .cfg_promiscuous_mode_msg = ice_vc_cfg_promiscuous_mode_msg,
3423         .add_vlan_msg = ice_vc_add_vlan_msg,
3424         .remove_vlan_msg = ice_vc_remove_vlan_msg,
3425         .ena_vlan_stripping = ice_vc_ena_vlan_stripping,
3426         .dis_vlan_stripping = ice_vc_dis_vlan_stripping,
3427         .handle_rss_cfg_msg = ice_vc_handle_rss_cfg,
3428         .add_fdir_fltr_msg = ice_vc_add_fdir_fltr,
3429         .del_fdir_fltr_msg = ice_vc_del_fdir_fltr,
3430         .get_offload_vlan_v2_caps = ice_vc_get_offload_vlan_v2_caps,
3431         .add_vlan_v2_msg = ice_vc_add_vlan_v2_msg,
3432         .remove_vlan_v2_msg = ice_vc_remove_vlan_v2_msg,
3433         .ena_vlan_stripping_v2_msg = ice_vc_ena_vlan_stripping_v2_msg,
3434         .dis_vlan_stripping_v2_msg = ice_vc_dis_vlan_stripping_v2_msg,
3435         .ena_vlan_insertion_v2_msg = ice_vc_ena_vlan_insertion_v2_msg,
3436         .dis_vlan_insertion_v2_msg = ice_vc_dis_vlan_insertion_v2_msg,
3437 };
3438
3439 /**
3440  * ice_virtchnl_set_dflt_ops - Switch to default virtchnl ops
3441  * @vf: the VF to switch ops
3442  */
3443 void ice_virtchnl_set_dflt_ops(struct ice_vf *vf)
3444 {
3445         vf->virtchnl_ops = &ice_virtchnl_dflt_ops;
3446 }
3447
3448 /**
3449  * ice_vc_repr_add_mac
3450  * @vf: pointer to VF
3451  * @msg: virtchannel message
3452  *
3453  * When port representors are created, we do not add MAC rule
3454  * to firmware, we store it so that PF could report same
3455  * MAC as VF.
3456  */
3457 static int ice_vc_repr_add_mac(struct ice_vf *vf, u8 *msg)
3458 {
3459         enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
3460         struct virtchnl_ether_addr_list *al =
3461             (struct virtchnl_ether_addr_list *)msg;
3462         struct ice_vsi *vsi;
3463         struct ice_pf *pf;
3464         int i;
3465
3466         if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) ||
3467             !ice_vc_isvalid_vsi_id(vf, al->vsi_id)) {
3468                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3469                 goto handle_mac_exit;
3470         }
3471
3472         pf = vf->pf;
3473
3474         vsi = ice_get_vf_vsi(vf);
3475         if (!vsi) {
3476                 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3477                 goto handle_mac_exit;
3478         }
3479
3480         for (i = 0; i < al->num_elements; i++) {
3481                 u8 *mac_addr = al->list[i].addr;
3482                 int result;
3483
3484                 if (!is_unicast_ether_addr(mac_addr) ||
3485                     ether_addr_equal(mac_addr, vf->hw_lan_addr.addr))
3486                         continue;
3487
3488                 if (vf->pf_set_mac) {
3489                         dev_err(ice_pf_to_dev(pf), "VF attempting to override administratively set MAC address\n");
3490                         v_ret = VIRTCHNL_STATUS_ERR_NOT_SUPPORTED;
3491                         goto handle_mac_exit;
3492                 }
3493
3494                 result = ice_eswitch_add_vf_mac_rule(pf, vf, mac_addr);
3495                 if (result) {
3496                         dev_err(ice_pf_to_dev(pf), "Failed to add MAC %pM for VF %d\n, error %d\n",
3497                                 mac_addr, vf->vf_id, result);
3498                         goto handle_mac_exit;
3499                 }
3500
3501                 ice_vfhw_mac_add(vf, &al->list[i]);
3502                 vf->num_mac++;
3503                 break;
3504         }
3505
3506 handle_mac_exit:
3507         return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR,
3508                                      v_ret, NULL, 0);
3509 }
3510
3511 /**
3512  * ice_vc_repr_del_mac - response with success for deleting MAC
3513  * @vf: pointer to VF
3514  * @msg: virtchannel message
3515  *
3516  * Respond with success to not break normal VF flow.
3517  * For legacy VF driver try to update cached MAC address.
3518  */
3519 static int
3520 ice_vc_repr_del_mac(struct ice_vf __always_unused *vf, u8 __always_unused *msg)
3521 {
3522         struct virtchnl_ether_addr_list *al =
3523                 (struct virtchnl_ether_addr_list *)msg;
3524
3525         ice_update_legacy_cached_mac(vf, &al->list[0]);
3526
3527         return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR,
3528                                      VIRTCHNL_STATUS_SUCCESS, NULL, 0);
3529 }
3530
3531 static int ice_vc_repr_add_vlan(struct ice_vf *vf, u8 __always_unused *msg)
3532 {
3533         dev_dbg(ice_pf_to_dev(vf->pf),
3534                 "Can't add VLAN in switchdev mode for VF %d\n", vf->vf_id);
3535         return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_VLAN,
3536                                      VIRTCHNL_STATUS_SUCCESS, NULL, 0);
3537 }
3538
3539 static int ice_vc_repr_del_vlan(struct ice_vf *vf, u8 __always_unused *msg)
3540 {
3541         dev_dbg(ice_pf_to_dev(vf->pf),
3542                 "Can't delete VLAN in switchdev mode for VF %d\n", vf->vf_id);
3543         return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DEL_VLAN,
3544                                      VIRTCHNL_STATUS_SUCCESS, NULL, 0);
3545 }
3546
3547 static int ice_vc_repr_ena_vlan_stripping(struct ice_vf *vf)
3548 {
3549         dev_dbg(ice_pf_to_dev(vf->pf),
3550                 "Can't enable VLAN stripping in switchdev mode for VF %d\n",
3551                 vf->vf_id);
3552         return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING,
3553                                      VIRTCHNL_STATUS_ERR_NOT_SUPPORTED,
3554                                      NULL, 0);
3555 }
3556
3557 static int ice_vc_repr_dis_vlan_stripping(struct ice_vf *vf)
3558 {
3559         dev_dbg(ice_pf_to_dev(vf->pf),
3560                 "Can't disable VLAN stripping in switchdev mode for VF %d\n",
3561                 vf->vf_id);
3562         return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING,
3563                                      VIRTCHNL_STATUS_ERR_NOT_SUPPORTED,
3564                                      NULL, 0);
3565 }
3566
3567 static int
3568 ice_vc_repr_cfg_promiscuous_mode(struct ice_vf *vf, u8 __always_unused *msg)
3569 {
3570         dev_dbg(ice_pf_to_dev(vf->pf),
3571                 "Can't config promiscuous mode in switchdev mode for VF %d\n",
3572                 vf->vf_id);
3573         return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
3574                                      VIRTCHNL_STATUS_ERR_NOT_SUPPORTED,
3575                                      NULL, 0);
3576 }
3577
3578 static const struct ice_virtchnl_ops ice_virtchnl_repr_ops = {
3579         .get_ver_msg = ice_vc_get_ver_msg,
3580         .get_vf_res_msg = ice_vc_get_vf_res_msg,
3581         .reset_vf = ice_vc_reset_vf_msg,
3582         .add_mac_addr_msg = ice_vc_repr_add_mac,
3583         .del_mac_addr_msg = ice_vc_repr_del_mac,
3584         .cfg_qs_msg = ice_vc_cfg_qs_msg,
3585         .ena_qs_msg = ice_vc_ena_qs_msg,
3586         .dis_qs_msg = ice_vc_dis_qs_msg,
3587         .request_qs_msg = ice_vc_request_qs_msg,
3588         .cfg_irq_map_msg = ice_vc_cfg_irq_map_msg,
3589         .config_rss_key = ice_vc_config_rss_key,
3590         .config_rss_lut = ice_vc_config_rss_lut,
3591         .get_stats_msg = ice_vc_get_stats_msg,
3592         .cfg_promiscuous_mode_msg = ice_vc_repr_cfg_promiscuous_mode,
3593         .add_vlan_msg = ice_vc_repr_add_vlan,
3594         .remove_vlan_msg = ice_vc_repr_del_vlan,
3595         .ena_vlan_stripping = ice_vc_repr_ena_vlan_stripping,
3596         .dis_vlan_stripping = ice_vc_repr_dis_vlan_stripping,
3597         .handle_rss_cfg_msg = ice_vc_handle_rss_cfg,
3598         .add_fdir_fltr_msg = ice_vc_add_fdir_fltr,
3599         .del_fdir_fltr_msg = ice_vc_del_fdir_fltr,
3600         .get_offload_vlan_v2_caps = ice_vc_get_offload_vlan_v2_caps,
3601         .add_vlan_v2_msg = ice_vc_add_vlan_v2_msg,
3602         .remove_vlan_v2_msg = ice_vc_remove_vlan_v2_msg,
3603         .ena_vlan_stripping_v2_msg = ice_vc_ena_vlan_stripping_v2_msg,
3604         .dis_vlan_stripping_v2_msg = ice_vc_dis_vlan_stripping_v2_msg,
3605         .ena_vlan_insertion_v2_msg = ice_vc_ena_vlan_insertion_v2_msg,
3606         .dis_vlan_insertion_v2_msg = ice_vc_dis_vlan_insertion_v2_msg,
3607 };
3608
3609 /**
3610  * ice_virtchnl_set_repr_ops - Switch to representor virtchnl ops
3611  * @vf: the VF to switch ops
3612  */
3613 void ice_virtchnl_set_repr_ops(struct ice_vf *vf)
3614 {
3615         vf->virtchnl_ops = &ice_virtchnl_repr_ops;
3616 }
3617
3618 /**
3619  * ice_vc_process_vf_msg - Process request from VF
3620  * @pf: pointer to the PF structure
3621  * @event: pointer to the AQ event
3622  *
3623  * called from the common asq/arq handler to
3624  * process request from VF
3625  */
3626 void ice_vc_process_vf_msg(struct ice_pf *pf, struct ice_rq_event_info *event)
3627 {
3628         u32 v_opcode = le32_to_cpu(event->desc.cookie_high);
3629         s16 vf_id = le16_to_cpu(event->desc.retval);
3630         const struct ice_virtchnl_ops *ops;
3631         u16 msglen = event->msg_len;
3632         u8 *msg = event->msg_buf;
3633         struct ice_vf *vf = NULL;
3634         struct device *dev;
3635         int err = 0;
3636
3637         dev = ice_pf_to_dev(pf);
3638
3639         vf = ice_get_vf_by_id(pf, vf_id);
3640         if (!vf) {
3641                 dev_err(dev, "Unable to locate VF for message from VF ID %d, opcode %d, len %d\n",
3642                         vf_id, v_opcode, msglen);
3643                 return;
3644         }
3645
3646         mutex_lock(&vf->cfg_lock);
3647
3648         /* Check if VF is disabled. */
3649         if (test_bit(ICE_VF_STATE_DIS, vf->vf_states)) {
3650                 err = -EPERM;
3651                 goto error_handler;
3652         }
3653
3654         ops = vf->virtchnl_ops;
3655
3656         /* Perform basic checks on the msg */
3657         err = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen);
3658         if (err) {
3659                 if (err == VIRTCHNL_STATUS_ERR_PARAM)
3660                         err = -EPERM;
3661                 else
3662                         err = -EINVAL;
3663         }
3664
3665 error_handler:
3666         if (err) {
3667                 ice_vc_send_msg_to_vf(vf, v_opcode, VIRTCHNL_STATUS_ERR_PARAM,
3668                                       NULL, 0);
3669                 dev_err(dev, "Invalid message from VF %d, opcode %d, len %d, error %d\n",
3670                         vf_id, v_opcode, msglen, err);
3671                 goto finish;
3672         }
3673
3674         if (!ice_vc_is_opcode_allowed(vf, v_opcode)) {
3675                 ice_vc_send_msg_to_vf(vf, v_opcode,
3676                                       VIRTCHNL_STATUS_ERR_NOT_SUPPORTED, NULL,
3677                                       0);
3678                 goto finish;
3679         }
3680
3681         switch (v_opcode) {
3682         case VIRTCHNL_OP_VERSION:
3683                 err = ops->get_ver_msg(vf, msg);
3684                 break;
3685         case VIRTCHNL_OP_GET_VF_RESOURCES:
3686                 err = ops->get_vf_res_msg(vf, msg);
3687                 if (ice_vf_init_vlan_stripping(vf))
3688                         dev_dbg(dev, "Failed to initialize VLAN stripping for VF %d\n",
3689                                 vf->vf_id);
3690                 ice_vc_notify_vf_link_state(vf);
3691                 break;
3692         case VIRTCHNL_OP_RESET_VF:
3693                 ops->reset_vf(vf);
3694                 break;
3695         case VIRTCHNL_OP_ADD_ETH_ADDR:
3696                 err = ops->add_mac_addr_msg(vf, msg);
3697                 break;
3698         case VIRTCHNL_OP_DEL_ETH_ADDR:
3699                 err = ops->del_mac_addr_msg(vf, msg);
3700                 break;
3701         case VIRTCHNL_OP_CONFIG_VSI_QUEUES:
3702                 err = ops->cfg_qs_msg(vf, msg);
3703                 break;
3704         case VIRTCHNL_OP_ENABLE_QUEUES:
3705                 err = ops->ena_qs_msg(vf, msg);
3706                 ice_vc_notify_vf_link_state(vf);
3707                 break;
3708         case VIRTCHNL_OP_DISABLE_QUEUES:
3709                 err = ops->dis_qs_msg(vf, msg);
3710                 break;
3711         case VIRTCHNL_OP_REQUEST_QUEUES:
3712                 err = ops->request_qs_msg(vf, msg);
3713                 break;
3714         case VIRTCHNL_OP_CONFIG_IRQ_MAP:
3715                 err = ops->cfg_irq_map_msg(vf, msg);
3716                 break;
3717         case VIRTCHNL_OP_CONFIG_RSS_KEY:
3718                 err = ops->config_rss_key(vf, msg);
3719                 break;
3720         case VIRTCHNL_OP_CONFIG_RSS_LUT:
3721                 err = ops->config_rss_lut(vf, msg);
3722                 break;
3723         case VIRTCHNL_OP_GET_STATS:
3724                 err = ops->get_stats_msg(vf, msg);
3725                 break;
3726         case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
3727                 err = ops->cfg_promiscuous_mode_msg(vf, msg);
3728                 break;
3729         case VIRTCHNL_OP_ADD_VLAN:
3730                 err = ops->add_vlan_msg(vf, msg);
3731                 break;
3732         case VIRTCHNL_OP_DEL_VLAN:
3733                 err = ops->remove_vlan_msg(vf, msg);
3734                 break;
3735         case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING:
3736                 err = ops->ena_vlan_stripping(vf);
3737                 break;
3738         case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING:
3739                 err = ops->dis_vlan_stripping(vf);
3740                 break;
3741         case VIRTCHNL_OP_ADD_FDIR_FILTER:
3742                 err = ops->add_fdir_fltr_msg(vf, msg);
3743                 break;
3744         case VIRTCHNL_OP_DEL_FDIR_FILTER:
3745                 err = ops->del_fdir_fltr_msg(vf, msg);
3746                 break;
3747         case VIRTCHNL_OP_ADD_RSS_CFG:
3748                 err = ops->handle_rss_cfg_msg(vf, msg, true);
3749                 break;
3750         case VIRTCHNL_OP_DEL_RSS_CFG:
3751                 err = ops->handle_rss_cfg_msg(vf, msg, false);
3752                 break;
3753         case VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS:
3754                 err = ops->get_offload_vlan_v2_caps(vf);
3755                 break;
3756         case VIRTCHNL_OP_ADD_VLAN_V2:
3757                 err = ops->add_vlan_v2_msg(vf, msg);
3758                 break;
3759         case VIRTCHNL_OP_DEL_VLAN_V2:
3760                 err = ops->remove_vlan_v2_msg(vf, msg);
3761                 break;
3762         case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2:
3763                 err = ops->ena_vlan_stripping_v2_msg(vf, msg);
3764                 break;
3765         case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2:
3766                 err = ops->dis_vlan_stripping_v2_msg(vf, msg);
3767                 break;
3768         case VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2:
3769                 err = ops->ena_vlan_insertion_v2_msg(vf, msg);
3770                 break;
3771         case VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2:
3772                 err = ops->dis_vlan_insertion_v2_msg(vf, msg);
3773                 break;
3774         case VIRTCHNL_OP_UNKNOWN:
3775         default:
3776                 dev_err(dev, "Unsupported opcode %d from VF %d\n", v_opcode,
3777                         vf_id);
3778                 err = ice_vc_send_msg_to_vf(vf, v_opcode,
3779                                             VIRTCHNL_STATUS_ERR_NOT_SUPPORTED,
3780                                             NULL, 0);
3781                 break;
3782         }
3783         if (err) {
3784                 /* Helper function cares less about error return values here
3785                  * as it is busy with pending work.
3786                  */
3787                 dev_info(dev, "PF failed to honor VF %d, opcode %d, error %d\n",
3788                          vf_id, v_opcode, err);
3789         }
3790
3791 finish:
3792         mutex_unlock(&vf->cfg_lock);
3793         ice_put_vf(vf);
3794 }