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