drivers/net/sfc/base/ef10_filter.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  *
   3  * Copyright (c) 2007-2018 Solarflare Communications Inc.
   4  * All rights reserved.
   5  */
   6
   7 #include "efx.h"
   8 #include "efx_impl.h"
   9
  10 #if EFX_OPTS_EF10()
  11
  12 #if EFSYS_OPT_FILTER
  13
  14 #define EFE_SPEC(eftp, index)   ((eftp)->eft_entry[(index)].efe_spec)
  15
  16 static                  efx_filter_spec_t *
  17 ef10_filter_entry_spec(
  18         __in            const ef10_filter_table_t *eftp,
  19         __in            unsigned int index)
  20 {
  21         return ((efx_filter_spec_t *)(EFE_SPEC(eftp, index) &
  22                 ~(uintptr_t)EFX_EF10_FILTER_FLAGS));
  23 }
  24
  25 static                  boolean_t
  26 ef10_filter_entry_is_busy(
  27         __in            const ef10_filter_table_t *eftp,
  28         __in            unsigned int index)
  29 {
  30         if (EFE_SPEC(eftp, index) & EFX_EF10_FILTER_FLAG_BUSY)
  31                 return (B_TRUE);
  32         else
  33                 return (B_FALSE);
  34 }
  35
  36 static                  boolean_t
  37 ef10_filter_entry_is_auto_old(
  38         __in            const ef10_filter_table_t *eftp,
  39         __in            unsigned int index)
  40 {
  41         if (EFE_SPEC(eftp, index) & EFX_EF10_FILTER_FLAG_AUTO_OLD)
  42                 return (B_TRUE);
  43         else
  44                 return (B_FALSE);
  45 }
  46
  47 static                  void
  48 ef10_filter_set_entry(
  49         __inout         ef10_filter_table_t *eftp,
  50         __in            unsigned int index,
  51         __in_opt        const efx_filter_spec_t *efsp)
  52 {
  53         EFE_SPEC(eftp, index) = (uintptr_t)efsp;
  54 }
  55
  56 static                  void
  57 ef10_filter_set_entry_busy(
  58         __inout         ef10_filter_table_t *eftp,
  59         __in            unsigned int index)
  60 {
  61         EFE_SPEC(eftp, index) |= (uintptr_t)EFX_EF10_FILTER_FLAG_BUSY;
  62 }
  63
  64 static                  void
  65 ef10_filter_set_entry_not_busy(
  66         __inout         ef10_filter_table_t *eftp,
  67         __in            unsigned int index)
  68 {
  69         EFE_SPEC(eftp, index) &= ~(uintptr_t)EFX_EF10_FILTER_FLAG_BUSY;
  70 }
  71
  72 static                  void
  73 ef10_filter_set_entry_auto_old(
  74         __inout         ef10_filter_table_t *eftp,
  75         __in            unsigned int index)
  76 {
  77         EFSYS_ASSERT(ef10_filter_entry_spec(eftp, index) != NULL);
  78         EFE_SPEC(eftp, index) |= (uintptr_t)EFX_EF10_FILTER_FLAG_AUTO_OLD;
  79 }
  80
  81 static                  void
  82 ef10_filter_set_entry_not_auto_old(
  83         __inout         ef10_filter_table_t *eftp,
  84         __in            unsigned int index)
  85 {
  86         EFE_SPEC(eftp, index) &= ~(uintptr_t)EFX_EF10_FILTER_FLAG_AUTO_OLD;
  87         EFSYS_ASSERT(ef10_filter_entry_spec(eftp, index) != NULL);
  88 }
  89
  90         __checkReturn   efx_rc_t
  91 ef10_filter_init(
  92         __in            efx_nic_t *enp)
  93 {
  94         efx_rc_t rc;
  95         ef10_filter_table_t *eftp;
  96
  97         EFSYS_ASSERT(EFX_FAMILY_IS_EF10(enp));
  98
  99 #define MATCH_MASK(match) (EFX_MASK32(match) << EFX_LOW_BIT(match))
 100         EFX_STATIC_ASSERT(EFX_FILTER_MATCH_REM_HOST ==
 101             MATCH_MASK(MC_CMD_FILTER_OP_EXT_IN_MATCH_SRC_IP));
 102         EFX_STATIC_ASSERT(EFX_FILTER_MATCH_LOC_HOST ==
 103             MATCH_MASK(MC_CMD_FILTER_OP_EXT_IN_MATCH_DST_IP));
 104         EFX_STATIC_ASSERT(EFX_FILTER_MATCH_REM_MAC ==
 105             MATCH_MASK(MC_CMD_FILTER_OP_EXT_IN_MATCH_SRC_MAC));
 106         EFX_STATIC_ASSERT(EFX_FILTER_MATCH_REM_PORT ==
 107             MATCH_MASK(MC_CMD_FILTER_OP_EXT_IN_MATCH_SRC_PORT));
 108         EFX_STATIC_ASSERT(EFX_FILTER_MATCH_LOC_MAC ==
 109             MATCH_MASK(MC_CMD_FILTER_OP_EXT_IN_MATCH_DST_MAC));
 110         EFX_STATIC_ASSERT(EFX_FILTER_MATCH_LOC_PORT ==
 111             MATCH_MASK(MC_CMD_FILTER_OP_EXT_IN_MATCH_DST_PORT));
 112         EFX_STATIC_ASSERT(EFX_FILTER_MATCH_ETHER_TYPE ==
 113             MATCH_MASK(MC_CMD_FILTER_OP_EXT_IN_MATCH_ETHER_TYPE));
 114         EFX_STATIC_ASSERT(EFX_FILTER_MATCH_INNER_VID ==
 115             MATCH_MASK(MC_CMD_FILTER_OP_EXT_IN_MATCH_INNER_VLAN));
 116         EFX_STATIC_ASSERT(EFX_FILTER_MATCH_OUTER_VID ==
 117             MATCH_MASK(MC_CMD_FILTER_OP_EXT_IN_MATCH_OUTER_VLAN));
 118         EFX_STATIC_ASSERT(EFX_FILTER_MATCH_IP_PROTO ==
 119             MATCH_MASK(MC_CMD_FILTER_OP_EXT_IN_MATCH_IP_PROTO));
 120         EFX_STATIC_ASSERT(EFX_FILTER_MATCH_VNI_OR_VSID ==
 121             MATCH_MASK(MC_CMD_FILTER_OP_EXT_IN_MATCH_VNI_OR_VSID));
 122         EFX_STATIC_ASSERT(EFX_FILTER_MATCH_IFRM_LOC_MAC ==
 123             MATCH_MASK(MC_CMD_FILTER_OP_EXT_IN_MATCH_IFRM_DST_MAC));
 124         EFX_STATIC_ASSERT(EFX_FILTER_MATCH_IFRM_UNKNOWN_MCAST_DST ==
 125             MATCH_MASK(MC_CMD_FILTER_OP_EXT_IN_MATCH_IFRM_UNKNOWN_MCAST_DST));
 126         EFX_STATIC_ASSERT(EFX_FILTER_MATCH_IFRM_UNKNOWN_UCAST_DST ==
 127             MATCH_MASK(MC_CMD_FILTER_OP_EXT_IN_MATCH_IFRM_UNKNOWN_UCAST_DST));
 128         EFX_STATIC_ASSERT(EFX_FILTER_MATCH_UNKNOWN_MCAST_DST ==
 129             MATCH_MASK(MC_CMD_FILTER_OP_EXT_IN_MATCH_UNKNOWN_MCAST_DST));
 130         EFX_STATIC_ASSERT((uint32_t)EFX_FILTER_MATCH_UNKNOWN_UCAST_DST ==
 131             MATCH_MASK(MC_CMD_FILTER_OP_EXT_IN_MATCH_UNKNOWN_UCAST_DST));
 132 #undef MATCH_MASK
 133
 134         EFSYS_KMEM_ALLOC(enp->en_esip, sizeof (ef10_filter_table_t), eftp);
 135
 136         if (!eftp) {
 137                 rc = ENOMEM;
 138                 goto fail1;
 139         }
 140
 141         enp->en_filter.ef_ef10_filter_table = eftp;
 142
 143         return (0);
 144
 145 fail1:
 146         EFSYS_PROBE1(fail1, efx_rc_t, rc);
 147
 148         return (rc);
 149 }
 150
 151                         void
 152 ef10_filter_fini(
 153         __in            efx_nic_t *enp)
 154 {
 155         EFSYS_ASSERT(EFX_FAMILY_IS_EF10(enp));
 156
 157         if (enp->en_filter.ef_ef10_filter_table != NULL) {
 158                 EFSYS_KMEM_FREE(enp->en_esip, sizeof (ef10_filter_table_t),
 159                     enp->en_filter.ef_ef10_filter_table);
 160         }
 161 }
 162
 163 static  __checkReturn   efx_rc_t
 164 efx_mcdi_filter_op_add(
 165         __in            efx_nic_t *enp,
 166         __in            efx_filter_spec_t *spec,
 167         __in            unsigned int filter_op,
 168         __inout         ef10_filter_handle_t *handle)
 169 {
 170         efx_mcdi_req_t req;
 171         EFX_MCDI_DECLARE_BUF(payload, MC_CMD_FILTER_OP_V3_IN_LEN,
 172                 MC_CMD_FILTER_OP_EXT_OUT_LEN);
 173         efx_filter_match_flags_t match_flags;
 174         efx_rc_t rc;
 175
 176         req.emr_cmd = MC_CMD_FILTER_OP;
 177         req.emr_in_buf = payload;
 178         req.emr_in_length = MC_CMD_FILTER_OP_V3_IN_LEN;
 179         req.emr_out_buf = payload;
 180         req.emr_out_length = MC_CMD_FILTER_OP_EXT_OUT_LEN;
 181
 182         /*
 183          * Remove match flag for encapsulated filters that does not correspond
 184          * to the MCDI match flags
 185          */
 186         match_flags = spec->efs_match_flags & ~EFX_FILTER_MATCH_ENCAP_TYPE;
 187
 188         switch (filter_op) {
 189         case MC_CMD_FILTER_OP_IN_OP_REPLACE:
 190                 MCDI_IN_SET_DWORD(req, FILTER_OP_EXT_IN_HANDLE_LO,
 191                     handle->efh_lo);
 192                 MCDI_IN_SET_DWORD(req, FILTER_OP_EXT_IN_HANDLE_HI,
 193                     handle->efh_hi);
 194                 /* Fall through */
 195         case MC_CMD_FILTER_OP_IN_OP_INSERT:
 196         case MC_CMD_FILTER_OP_IN_OP_SUBSCRIBE:
 197                 MCDI_IN_SET_DWORD(req, FILTER_OP_EXT_IN_OP, filter_op);
 198                 break;
 199         default:
 200                 EFSYS_ASSERT(0);
 201                 rc = EINVAL;
 202                 goto fail1;
 203         }
 204
 205         MCDI_IN_SET_DWORD(req, FILTER_OP_EXT_IN_PORT_ID, enp->en_vport_id);
 206         MCDI_IN_SET_DWORD(req, FILTER_OP_EXT_IN_MATCH_FIELDS,
 207             match_flags);
 208         if (spec->efs_dmaq_id == EFX_FILTER_SPEC_RX_DMAQ_ID_DROP) {
 209                 MCDI_IN_SET_DWORD(req, FILTER_OP_EXT_IN_RX_DEST,
 210                     MC_CMD_FILTER_OP_EXT_IN_RX_DEST_DROP);
 211         } else {
 212                 MCDI_IN_SET_DWORD(req, FILTER_OP_EXT_IN_RX_DEST,
 213                     MC_CMD_FILTER_OP_EXT_IN_RX_DEST_HOST);
 214                 MCDI_IN_SET_DWORD(req, FILTER_OP_EXT_IN_RX_QUEUE,
 215                     spec->efs_dmaq_id);
 216         }
 217
 218 #if EFSYS_OPT_RX_SCALE
 219         if (spec->efs_flags & EFX_FILTER_FLAG_RX_RSS) {
 220                 uint32_t rss_context;
 221
 222                 if (spec->efs_rss_context == EFX_RSS_CONTEXT_DEFAULT)
 223                         rss_context = enp->en_rss_context;
 224                 else
 225                         rss_context = spec->efs_rss_context;
 226                 MCDI_IN_SET_DWORD(req, FILTER_OP_EXT_IN_RX_CONTEXT,
 227                     rss_context);
 228         }
 229 #endif
 230
 231         MCDI_IN_SET_DWORD(req, FILTER_OP_EXT_IN_RX_MODE,
 232             spec->efs_flags & EFX_FILTER_FLAG_RX_RSS ?
 233             MC_CMD_FILTER_OP_EXT_IN_RX_MODE_RSS :
 234             MC_CMD_FILTER_OP_EXT_IN_RX_MODE_SIMPLE);
 235         MCDI_IN_SET_DWORD(req, FILTER_OP_EXT_IN_TX_DEST,
 236             MC_CMD_FILTER_OP_EXT_IN_TX_DEST_DEFAULT);
 237
 238         if (filter_op != MC_CMD_FILTER_OP_IN_OP_REPLACE) {
 239                 /*
 240                  * NOTE: Unlike most MCDI requests, the filter fields
 241                  * are presented in network (big endian) byte order.
 242                  */
 243                 memcpy(MCDI_IN2(req, uint8_t, FILTER_OP_EXT_IN_SRC_MAC),
 244                     spec->efs_rem_mac, EFX_MAC_ADDR_LEN);
 245                 memcpy(MCDI_IN2(req, uint8_t, FILTER_OP_EXT_IN_DST_MAC),
 246                     spec->efs_loc_mac, EFX_MAC_ADDR_LEN);
 247
 248                 MCDI_IN_SET_WORD(req, FILTER_OP_EXT_IN_SRC_PORT,
 249                     __CPU_TO_BE_16(spec->efs_rem_port));
 250                 MCDI_IN_SET_WORD(req, FILTER_OP_EXT_IN_DST_PORT,
 251                     __CPU_TO_BE_16(spec->efs_loc_port));
 252
 253                 MCDI_IN_SET_WORD(req, FILTER_OP_EXT_IN_ETHER_TYPE,
 254                     __CPU_TO_BE_16(spec->efs_ether_type));
 255
 256                 MCDI_IN_SET_WORD(req, FILTER_OP_EXT_IN_INNER_VLAN,
 257                     __CPU_TO_BE_16(spec->efs_inner_vid));
 258                 MCDI_IN_SET_WORD(req, FILTER_OP_EXT_IN_OUTER_VLAN,
 259                     __CPU_TO_BE_16(spec->efs_outer_vid));
 260
 261                 /* IP protocol (in low byte, high byte is zero) */
 262                 MCDI_IN_SET_BYTE(req, FILTER_OP_EXT_IN_IP_PROTO,
 263                     spec->efs_ip_proto);
 264
 265                 EFX_STATIC_ASSERT(sizeof (spec->efs_rem_host) ==
 266                     MC_CMD_FILTER_OP_EXT_IN_SRC_IP_LEN);
 267                 EFX_STATIC_ASSERT(sizeof (spec->efs_loc_host) ==
 268                     MC_CMD_FILTER_OP_EXT_IN_DST_IP_LEN);
 269
 270                 memcpy(MCDI_IN2(req, uint8_t, FILTER_OP_EXT_IN_SRC_IP),
 271                     &spec->efs_rem_host.eo_byte[0],
 272                     MC_CMD_FILTER_OP_EXT_IN_SRC_IP_LEN);
 273                 memcpy(MCDI_IN2(req, uint8_t, FILTER_OP_EXT_IN_DST_IP),
 274                     &spec->efs_loc_host.eo_byte[0],
 275                     MC_CMD_FILTER_OP_EXT_IN_DST_IP_LEN);
 276
 277                 /*
 278                  * On Medford, filters for encapsulated packets match based on
 279                  * the ether type and IP protocol in the outer frame.  In
 280                  * addition we need to fill in the VNI or VSID type field.
 281                  */
 282                 switch (spec->efs_encap_type) {
 283                 case EFX_TUNNEL_PROTOCOL_NONE:
 284                         break;
 285                 case EFX_TUNNEL_PROTOCOL_VXLAN:
 286                 case EFX_TUNNEL_PROTOCOL_GENEVE:
 287                         MCDI_IN_POPULATE_DWORD_1(req,
 288                             FILTER_OP_EXT_IN_VNI_OR_VSID,
 289                             FILTER_OP_EXT_IN_VNI_TYPE,
 290                             spec->efs_encap_type == EFX_TUNNEL_PROTOCOL_VXLAN ?
 291                                     MC_CMD_FILTER_OP_EXT_IN_VNI_TYPE_VXLAN :
 292                                     MC_CMD_FILTER_OP_EXT_IN_VNI_TYPE_GENEVE);
 293                         break;
 294                 case EFX_TUNNEL_PROTOCOL_NVGRE:
 295                         MCDI_IN_POPULATE_DWORD_1(req,
 296                             FILTER_OP_EXT_IN_VNI_OR_VSID,
 297                             FILTER_OP_EXT_IN_VSID_TYPE,
 298                             MC_CMD_FILTER_OP_EXT_IN_VSID_TYPE_NVGRE);
 299                         break;
 300                 default:
 301                         EFSYS_ASSERT(0);
 302                         rc = EINVAL;
 303                         goto fail2;
 304                 }
 305
 306                 memcpy(MCDI_IN2(req, uint8_t, FILTER_OP_EXT_IN_VNI_OR_VSID),
 307                     spec->efs_vni_or_vsid, EFX_VNI_OR_VSID_LEN);
 308
 309                 memcpy(MCDI_IN2(req, uint8_t, FILTER_OP_EXT_IN_IFRM_DST_MAC),
 310                     spec->efs_ifrm_loc_mac, EFX_MAC_ADDR_LEN);
 311         }
 312
 313         /*
 314          * Set the "MARK" or "FLAG" action for all packets matching this filter
 315          * if necessary (only useful with equal stride packed stream Rx mode
 316          * which provide the information in pseudo-header).
 317          * These actions require MC_CMD_FILTER_OP_V3_IN msgrequest.
 318          */
 319         if ((spec->efs_flags & EFX_FILTER_FLAG_ACTION_MARK) &&
 320             (spec->efs_flags & EFX_FILTER_FLAG_ACTION_FLAG)) {
 321                 rc = EINVAL;
 322                 goto fail3;
 323         }
 324         if (spec->efs_flags & EFX_FILTER_FLAG_ACTION_MARK) {
 325                 MCDI_IN_SET_DWORD(req, FILTER_OP_V3_IN_MATCH_ACTION,
 326                     MC_CMD_FILTER_OP_V3_IN_MATCH_ACTION_MARK);
 327                 MCDI_IN_SET_DWORD(req, FILTER_OP_V3_IN_MATCH_MARK_VALUE,
 328                     spec->efs_mark);
 329         } else if (spec->efs_flags & EFX_FILTER_FLAG_ACTION_FLAG) {
 330                 MCDI_IN_SET_DWORD(req, FILTER_OP_V3_IN_MATCH_ACTION,
 331                     MC_CMD_FILTER_OP_V3_IN_MATCH_ACTION_FLAG);
 332         }
 333
 334         efx_mcdi_execute(enp, &req);
 335
 336         if (req.emr_rc != 0) {
 337                 rc = req.emr_rc;
 338                 goto fail4;
 339         }
 340
 341         if (req.emr_out_length_used < MC_CMD_FILTER_OP_EXT_OUT_LEN) {
 342                 rc = EMSGSIZE;
 343                 goto fail5;
 344         }
 345
 346         handle->efh_lo = MCDI_OUT_DWORD(req, FILTER_OP_EXT_OUT_HANDLE_LO);
 347         handle->efh_hi = MCDI_OUT_DWORD(req, FILTER_OP_EXT_OUT_HANDLE_HI);
 348
 349         return (0);
 350
 351 fail5:
 352         EFSYS_PROBE(fail5);
 353 fail4:
 354         EFSYS_PROBE(fail4);
 355 fail3:
 356         EFSYS_PROBE(fail3);
 357 fail2:
 358         EFSYS_PROBE(fail2);
 359 fail1:
 360         EFSYS_PROBE1(fail1, efx_rc_t, rc);
 361
 362         return (rc);
 363
 364 }
 365
 366 static  __checkReturn   efx_rc_t
 367 efx_mcdi_filter_op_delete(
 368         __in            efx_nic_t *enp,
 369         __in            unsigned int filter_op,
 370         __inout         ef10_filter_handle_t *handle)
 371 {
 372         efx_mcdi_req_t req;
 373         EFX_MCDI_DECLARE_BUF(payload, MC_CMD_FILTER_OP_EXT_IN_LEN,
 374                 MC_CMD_FILTER_OP_EXT_OUT_LEN);
 375         efx_rc_t rc;
 376
 377         req.emr_cmd = MC_CMD_FILTER_OP;
 378         req.emr_in_buf = payload;
 379         req.emr_in_length = MC_CMD_FILTER_OP_EXT_IN_LEN;
 380         req.emr_out_buf = payload;
 381         req.emr_out_length = MC_CMD_FILTER_OP_EXT_OUT_LEN;
 382
 383         switch (filter_op) {
 384         case MC_CMD_FILTER_OP_IN_OP_REMOVE:
 385                 MCDI_IN_SET_DWORD(req, FILTER_OP_EXT_IN_OP,
 386                     MC_CMD_FILTER_OP_IN_OP_REMOVE);
 387                 break;
 388         case MC_CMD_FILTER_OP_IN_OP_UNSUBSCRIBE:
 389                 MCDI_IN_SET_DWORD(req, FILTER_OP_EXT_IN_OP,
 390                     MC_CMD_FILTER_OP_IN_OP_UNSUBSCRIBE);
 391                 break;
 392         default:
 393                 EFSYS_ASSERT(0);
 394                 rc = EINVAL;
 395                 goto fail1;
 396         }
 397
 398         MCDI_IN_SET_DWORD(req, FILTER_OP_EXT_IN_HANDLE_LO, handle->efh_lo);
 399         MCDI_IN_SET_DWORD(req, FILTER_OP_EXT_IN_HANDLE_HI, handle->efh_hi);
 400
 401         efx_mcdi_execute_quiet(enp, &req);
 402
 403         if (req.emr_rc != 0) {
 404                 rc = req.emr_rc;
 405                 goto fail2;
 406         }
 407
 408         if (req.emr_out_length_used < MC_CMD_FILTER_OP_EXT_OUT_LEN) {
 409                 rc = EMSGSIZE;
 410                 goto fail3;
 411         }
 412
 413         return (0);
 414
 415 fail3:
 416         EFSYS_PROBE(fail3);
 417
 418 fail2:
 419         EFSYS_PROBE(fail2);
 420 fail1:
 421         EFSYS_PROBE1(fail1, efx_rc_t, rc);
 422
 423         return (rc);
 424 }
 425
 426 static  __checkReturn   boolean_t
 427 ef10_filter_equal(
 428         __in            const efx_filter_spec_t *left,
 429         __in            const efx_filter_spec_t *right)
 430 {
 431         /* FIXME: Consider rx vs tx filters (look at efs_flags) */
 432         if (left->efs_match_flags != right->efs_match_flags)
 433                 return (B_FALSE);
 434         if (!EFX_OWORD_IS_EQUAL(left->efs_rem_host, right->efs_rem_host))
 435                 return (B_FALSE);
 436         if (!EFX_OWORD_IS_EQUAL(left->efs_loc_host, right->efs_loc_host))
 437                 return (B_FALSE);
 438         if (memcmp(left->efs_rem_mac, right->efs_rem_mac, EFX_MAC_ADDR_LEN))
 439                 return (B_FALSE);
 440         if (memcmp(left->efs_loc_mac, right->efs_loc_mac, EFX_MAC_ADDR_LEN))
 441                 return (B_FALSE);
 442         if (left->efs_rem_port != right->efs_rem_port)
 443                 return (B_FALSE);
 444         if (left->efs_loc_port != right->efs_loc_port)
 445                 return (B_FALSE);
 446         if (left->efs_inner_vid != right->efs_inner_vid)
 447                 return (B_FALSE);
 448         if (left->efs_outer_vid != right->efs_outer_vid)
 449                 return (B_FALSE);
 450         if (left->efs_ether_type != right->efs_ether_type)
 451                 return (B_FALSE);
 452         if (left->efs_ip_proto != right->efs_ip_proto)
 453                 return (B_FALSE);
 454         if (left->efs_encap_type != right->efs_encap_type)
 455                 return (B_FALSE);
 456         if (memcmp(left->efs_vni_or_vsid, right->efs_vni_or_vsid,
 457             EFX_VNI_OR_VSID_LEN))
 458                 return (B_FALSE);
 459         if (memcmp(left->efs_ifrm_loc_mac, right->efs_ifrm_loc_mac,
 460             EFX_MAC_ADDR_LEN))
 461                 return (B_FALSE);
 462
 463         return (B_TRUE);
 464
 465 }
 466
 467 static  __checkReturn   boolean_t
 468 ef10_filter_same_dest(
 469         __in            const efx_filter_spec_t *left,
 470         __in            const efx_filter_spec_t *right)
 471 {
 472         if ((left->efs_flags & EFX_FILTER_FLAG_RX_RSS) &&
 473             (right->efs_flags & EFX_FILTER_FLAG_RX_RSS)) {
 474                 if (left->efs_rss_context == right->efs_rss_context)
 475                         return (B_TRUE);
 476         } else if ((~(left->efs_flags) & EFX_FILTER_FLAG_RX_RSS) &&
 477             (~(right->efs_flags) & EFX_FILTER_FLAG_RX_RSS)) {
 478                 if (left->efs_dmaq_id == right->efs_dmaq_id)
 479                         return (B_TRUE);
 480         }
 481         return (B_FALSE);
 482 }
 483
 484 static  __checkReturn   uint32_t
 485 ef10_filter_hash(
 486         __in            efx_filter_spec_t *spec)
 487 {
 488         EFX_STATIC_ASSERT((sizeof (efx_filter_spec_t) % sizeof (uint32_t))
 489                             == 0);
 490         EFX_STATIC_ASSERT((EFX_FIELD_OFFSET(efx_filter_spec_t, efs_outer_vid) %
 491                             sizeof (uint32_t)) == 0);
 492
 493         /*
 494          * As the area of the efx_filter_spec_t we need to hash is DWORD
 495          * aligned and an exact number of DWORDs in size we can use the
 496          * optimised efx_hash_dwords() rather than efx_hash_bytes()
 497          */
 498         return (efx_hash_dwords((const uint32_t *)&spec->efs_outer_vid,
 499                         (sizeof (efx_filter_spec_t) -
 500                         EFX_FIELD_OFFSET(efx_filter_spec_t, efs_outer_vid)) /
 501                         sizeof (uint32_t), 0));
 502 }
 503
 504 /*
 505  * Decide whether a filter should be exclusive or else should allow
 506  * delivery to additional recipients.  Currently we decide that
 507  * filters for specific local unicast MAC and IP addresses are
 508  * exclusive.
 509  */
 510 static  __checkReturn   boolean_t
 511 ef10_filter_is_exclusive(
 512         __in            efx_filter_spec_t *spec)
 513 {
 514         if ((spec->efs_match_flags & EFX_FILTER_MATCH_LOC_MAC) &&
 515             !EFX_MAC_ADDR_IS_MULTICAST(spec->efs_loc_mac))
 516                 return (B_TRUE);
 517
 518         if ((spec->efs_match_flags &
 519                 (EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_LOC_HOST)) ==
 520             (EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_LOC_HOST)) {
 521                 if ((spec->efs_ether_type == EFX_ETHER_TYPE_IPV4) &&
 522                     ((spec->efs_loc_host.eo_u8[0] & 0xf) != 0xe))
 523                         return (B_TRUE);
 524                 if ((spec->efs_ether_type == EFX_ETHER_TYPE_IPV6) &&
 525                     (spec->efs_loc_host.eo_u8[0] != 0xff))
 526                         return (B_TRUE);
 527         }
 528
 529         return (B_FALSE);
 530 }
 531
 532         __checkReturn   efx_rc_t
 533 ef10_filter_restore(
 534         __in            efx_nic_t *enp)
 535 {
 536         int tbl_id;
 537         efx_filter_spec_t *spec;
 538         ef10_filter_table_t *eftp = enp->en_filter.ef_ef10_filter_table;
 539         boolean_t restoring;
 540         efsys_lock_state_t state;
 541         efx_rc_t rc;
 542
 543         EFSYS_ASSERT(EFX_FAMILY_IS_EF10(enp));
 544
 545         for (tbl_id = 0; tbl_id < EFX_EF10_FILTER_TBL_ROWS; tbl_id++) {
 546
 547                 EFSYS_LOCK(enp->en_eslp, state);
 548
 549                 spec = ef10_filter_entry_spec(eftp, tbl_id);
 550                 if (spec == NULL) {
 551                         restoring = B_FALSE;
 552                 } else if (ef10_filter_entry_is_busy(eftp, tbl_id)) {
 553                         /* Ignore busy entries. */
 554                         restoring = B_FALSE;
 555                 } else {
 556                         ef10_filter_set_entry_busy(eftp, tbl_id);
 557                         restoring = B_TRUE;
 558                 }
 559
 560                 EFSYS_UNLOCK(enp->en_eslp, state);
 561
 562                 if (restoring == B_FALSE)
 563                         continue;
 564
 565                 if (ef10_filter_is_exclusive(spec)) {
 566                         rc = efx_mcdi_filter_op_add(enp, spec,
 567                             MC_CMD_FILTER_OP_IN_OP_INSERT,
 568                             &eftp->eft_entry[tbl_id].efe_handle);
 569                 } else {
 570                         rc = efx_mcdi_filter_op_add(enp, spec,
 571                             MC_CMD_FILTER_OP_IN_OP_SUBSCRIBE,
 572                             &eftp->eft_entry[tbl_id].efe_handle);
 573                 }
 574
 575                 if (rc != 0)
 576                         goto fail1;
 577
 578                 EFSYS_LOCK(enp->en_eslp, state);
 579
 580                 ef10_filter_set_entry_not_busy(eftp, tbl_id);
 581
 582                 EFSYS_UNLOCK(enp->en_eslp, state);
 583         }
 584
 585         return (0);
 586
 587 fail1:
 588         EFSYS_PROBE1(fail1, efx_rc_t, rc);
 589
 590         return (rc);
 591 }
 592
 593 /*
 594  * An arbitrary search limit for the software hash table. As per the linux net
 595  * driver.
 596  */
 597 #define EF10_FILTER_SEARCH_LIMIT 200
 598
 599 static  __checkReturn   efx_rc_t
 600 ef10_filter_add_internal(
 601         __in            efx_nic_t *enp,
 602         __inout         efx_filter_spec_t *spec,
 603         __in            boolean_t may_replace,
 604         __out_opt       uint32_t *filter_id)
 605 {
 606         efx_rc_t rc;
 607         ef10_filter_table_t *eftp = enp->en_filter.ef_ef10_filter_table;
 608         efx_filter_spec_t *saved_spec;
 609         uint32_t hash;
 610         unsigned int depth;
 611         int ins_index;
 612         boolean_t replacing = B_FALSE;
 613         unsigned int i;
 614         efsys_lock_state_t state;
 615         boolean_t locked = B_FALSE;
 616
 617         EFSYS_ASSERT(EFX_FAMILY_IS_EF10(enp));
 618
 619         hash = ef10_filter_hash(spec);
 620
 621         /*
 622          * FIXME: Add support for inserting filters of different priorities
 623          * and removing lower priority multicast filters (bug 42378)
 624          */
 625
 626         /*
 627          * Find any existing filters with the same match tuple or
 628          * else a free slot to insert at.  If any of them are busy,
 629          * we have to wait and retry.
 630          */
 631 retry:
 632         EFSYS_LOCK(enp->en_eslp, state);
 633         locked = B_TRUE;
 634
 635         ins_index = -1;
 636
 637         for (depth = 1; depth <= EF10_FILTER_SEARCH_LIMIT; depth++) {
 638                 i = (hash + depth) & (EFX_EF10_FILTER_TBL_ROWS - 1);
 639                 saved_spec = ef10_filter_entry_spec(eftp, i);
 640
 641                 if (saved_spec == NULL) {
 642                         if (ins_index < 0)
 643                                 ins_index = i;
 644                 } else if (ef10_filter_equal(spec, saved_spec)) {
 645                         if (ef10_filter_entry_is_busy(eftp, i)) {
 646                                 EFSYS_UNLOCK(enp->en_eslp, state);
 647                                 locked = B_FALSE;
 648                                 goto retry;
 649                         }
 650
 651                         if (saved_spec->efs_priority == EFX_FILTER_PRI_AUTO) {
 652                                 ins_index = i;
 653                                 goto found;
 654                         }
 655
 656                         if (ef10_filter_is_exclusive(spec)) {
 657                                 if (may_replace) {
 658                                         ins_index = i;
 659                                         goto found;
 660                                 } else {
 661                                         rc = EEXIST;
 662                                         goto fail1;
 663                                 }
 664                         }
 665
 666                         /* Leave existing */
 667                 }
 668         }
 669
 670         /*
 671          * Once we reach the maximum search depth, use the first suitable slot
 672          * or return EBUSY if there was none.
 673          */
 674         if (ins_index < 0) {
 675                 rc = EBUSY;
 676                 goto fail2;
 677         }
 678
 679 found:
 680         /*
 681          * Create a software table entry if necessary, and mark it
 682          * busy.  We might yet fail to insert, but any attempt to
 683          * insert a conflicting filter while we're waiting for the
 684          * firmware must find the busy entry.
 685          */
 686         saved_spec = ef10_filter_entry_spec(eftp, ins_index);
 687         if (saved_spec) {
 688                 if (saved_spec->efs_priority == EFX_FILTER_PRI_AUTO) {
 689                         /* This is a filter we are refreshing */
 690                         ef10_filter_set_entry_not_auto_old(eftp, ins_index);
 691                         goto out_unlock;
 692
 693                 }
 694                 replacing = B_TRUE;
 695         } else {
 696                 EFSYS_KMEM_ALLOC(enp->en_esip, sizeof (*spec), saved_spec);
 697                 if (!saved_spec) {
 698                         rc = ENOMEM;
 699                         goto fail3;
 700                 }
 701                 *saved_spec = *spec;
 702                 ef10_filter_set_entry(eftp, ins_index, saved_spec);
 703         }
 704         ef10_filter_set_entry_busy(eftp, ins_index);
 705
 706         EFSYS_UNLOCK(enp->en_eslp, state);
 707         locked = B_FALSE;
 708
 709         /*
 710          * On replacing the filter handle may change after after a successful
 711          * replace operation.
 712          */
 713         if (replacing) {
 714                 rc = efx_mcdi_filter_op_add(enp, spec,
 715                     MC_CMD_FILTER_OP_IN_OP_REPLACE,
 716                     &eftp->eft_entry[ins_index].efe_handle);
 717         } else if (ef10_filter_is_exclusive(spec)) {
 718                 rc = efx_mcdi_filter_op_add(enp, spec,
 719                     MC_CMD_FILTER_OP_IN_OP_INSERT,
 720                     &eftp->eft_entry[ins_index].efe_handle);
 721         } else {
 722                 rc = efx_mcdi_filter_op_add(enp, spec,
 723                     MC_CMD_FILTER_OP_IN_OP_SUBSCRIBE,
 724                     &eftp->eft_entry[ins_index].efe_handle);
 725         }
 726
 727         if (rc != 0)
 728                 goto fail4;
 729
 730         EFSYS_LOCK(enp->en_eslp, state);
 731         locked = B_TRUE;
 732
 733         if (replacing) {
 734                 /* Update the fields that may differ */
 735                 saved_spec->efs_priority = spec->efs_priority;
 736                 saved_spec->efs_flags = spec->efs_flags;
 737                 saved_spec->efs_rss_context = spec->efs_rss_context;
 738                 saved_spec->efs_dmaq_id = spec->efs_dmaq_id;
 739         }
 740
 741         ef10_filter_set_entry_not_busy(eftp, ins_index);
 742
 743 out_unlock:
 744
 745         EFSYS_UNLOCK(enp->en_eslp, state);
 746         locked = B_FALSE;
 747
 748         if (filter_id)
 749                 *filter_id = ins_index;
 750
 751         return (0);
 752
 753 fail4:
 754         EFSYS_PROBE(fail4);
 755
 756         if (!replacing) {
 757                 EFSYS_KMEM_FREE(enp->en_esip, sizeof (*spec), saved_spec);
 758                 saved_spec = NULL;
 759         }
 760         ef10_filter_set_entry_not_busy(eftp, ins_index);
 761         ef10_filter_set_entry(eftp, ins_index, NULL);
 762
 763 fail3:
 764         EFSYS_PROBE(fail3);
 765
 766 fail2:
 767         EFSYS_PROBE(fail2);
 768
 769 fail1:
 770         EFSYS_PROBE1(fail1, efx_rc_t, rc);
 771
 772         if (locked)
 773                 EFSYS_UNLOCK(enp->en_eslp, state);
 774
 775         return (rc);
 776 }
 777
 778         __checkReturn   efx_rc_t
 779 ef10_filter_add(
 780         __in            efx_nic_t *enp,
 781         __inout         efx_filter_spec_t *spec,
 782         __in            boolean_t may_replace)
 783 {
 784         efx_rc_t rc;
 785
 786         rc = ef10_filter_add_internal(enp, spec, may_replace, NULL);
 787         if (rc != 0)
 788                 goto fail1;
 789
 790         return (0);
 791
 792 fail1:
 793         EFSYS_PROBE1(fail1, efx_rc_t, rc);
 794
 795         return (rc);
 796 }
 797
 798
 799 static  __checkReturn   efx_rc_t
 800 ef10_filter_delete_internal(
 801         __in            efx_nic_t *enp,
 802         __in            uint32_t filter_id)
 803 {
 804         efx_rc_t rc;
 805         ef10_filter_table_t *table = enp->en_filter.ef_ef10_filter_table;
 806         efx_filter_spec_t *spec;
 807         efsys_lock_state_t state;
 808         uint32_t filter_idx = filter_id % EFX_EF10_FILTER_TBL_ROWS;
 809
 810         /*
 811          * Find the software table entry and mark it busy.  Don't
 812          * remove it yet; any attempt to update while we're waiting
 813          * for the firmware must find the busy entry.
 814          *
 815          * FIXME: What if the busy flag is never cleared?
 816          */
 817         EFSYS_LOCK(enp->en_eslp, state);
 818         while (ef10_filter_entry_is_busy(table, filter_idx)) {
 819                 EFSYS_UNLOCK(enp->en_eslp, state);
 820                 EFSYS_SPIN(1);
 821                 EFSYS_LOCK(enp->en_eslp, state);
 822         }
 823         if ((spec = ef10_filter_entry_spec(table, filter_idx)) != NULL) {
 824                 ef10_filter_set_entry_busy(table, filter_idx);
 825         }
 826         EFSYS_UNLOCK(enp->en_eslp, state);
 827
 828         if (spec == NULL) {
 829                 rc = ENOENT;
 830                 goto fail1;
 831         }
 832
 833         /*
 834          * Try to remove the hardware filter. This may fail if the MC has
 835          * rebooted (which frees all hardware filter resources).
 836          */
 837         if (ef10_filter_is_exclusive(spec)) {
 838                 rc = efx_mcdi_filter_op_delete(enp,
 839                     MC_CMD_FILTER_OP_IN_OP_REMOVE,
 840                     &table->eft_entry[filter_idx].efe_handle);
 841         } else {
 842                 rc = efx_mcdi_filter_op_delete(enp,
 843                     MC_CMD_FILTER_OP_IN_OP_UNSUBSCRIBE,
 844                     &table->eft_entry[filter_idx].efe_handle);
 845         }
 846
 847         /* Free the software table entry */
 848         EFSYS_LOCK(enp->en_eslp, state);
 849         ef10_filter_set_entry_not_busy(table, filter_idx);
 850         ef10_filter_set_entry(table, filter_idx, NULL);
 851         EFSYS_UNLOCK(enp->en_eslp, state);
 852
 853         EFSYS_KMEM_FREE(enp->en_esip, sizeof (*spec), spec);
 854
 855         /* Check result of hardware filter removal */
 856         if (rc != 0)
 857                 goto fail2;
 858
 859         return (0);
 860
 861 fail2:
 862         EFSYS_PROBE(fail2);
 863
 864 fail1:
 865         EFSYS_PROBE1(fail1, efx_rc_t, rc);
 866
 867         return (rc);
 868 }
 869
 870         __checkReturn   efx_rc_t
 871 ef10_filter_delete(
 872         __in            efx_nic_t *enp,
 873         __inout         efx_filter_spec_t *spec)
 874 {
 875         efx_rc_t rc;
 876         ef10_filter_table_t *table = enp->en_filter.ef_ef10_filter_table;
 877         efx_filter_spec_t *saved_spec;
 878         unsigned int hash;
 879         unsigned int depth;
 880         unsigned int i;
 881         efsys_lock_state_t state;
 882         boolean_t locked = B_FALSE;
 883
 884         EFSYS_ASSERT(EFX_FAMILY_IS_EF10(enp));
 885
 886         hash = ef10_filter_hash(spec);
 887
 888         EFSYS_LOCK(enp->en_eslp, state);
 889         locked = B_TRUE;
 890
 891         depth = 1;
 892         for (;;) {
 893                 i = (hash + depth) & (EFX_EF10_FILTER_TBL_ROWS - 1);
 894                 saved_spec = ef10_filter_entry_spec(table, i);
 895                 if (saved_spec && ef10_filter_equal(spec, saved_spec) &&
 896                     ef10_filter_same_dest(spec, saved_spec)) {
 897                         break;
 898                 }
 899                 if (depth == EF10_FILTER_SEARCH_LIMIT) {
 900                         rc = ENOENT;
 901                         goto fail1;
 902                 }
 903                 depth++;
 904         }
 905
 906         EFSYS_UNLOCK(enp->en_eslp, state);
 907         locked = B_FALSE;
 908
 909         rc = ef10_filter_delete_internal(enp, i);
 910         if (rc != 0)
 911                 goto fail2;
 912
 913         return (0);
 914
 915 fail2:
 916         EFSYS_PROBE(fail2);
 917
 918 fail1:
 919         EFSYS_PROBE1(fail1, efx_rc_t, rc);
 920
 921         if (locked)
 922                 EFSYS_UNLOCK(enp->en_eslp, state);
 923
 924         return (rc);
 925 }
 926
 927 static  __checkReturn   efx_rc_t
 928 efx_mcdi_get_parser_disp_info(
 929         __in                            efx_nic_t *enp,
 930         __out_ecount(buffer_length)     uint32_t *buffer,
 931         __in                            size_t buffer_length,
 932         __in                            boolean_t encap,
 933         __out                           size_t *list_lengthp)
 934 {
 935         efx_mcdi_req_t req;
 936         EFX_MCDI_DECLARE_BUF(payload, MC_CMD_GET_PARSER_DISP_INFO_IN_LEN,
 937                 MC_CMD_GET_PARSER_DISP_INFO_OUT_LENMAX);
 938         size_t matches_count;
 939         size_t list_size;
 940         efx_rc_t rc;
 941
 942         req.emr_cmd = MC_CMD_GET_PARSER_DISP_INFO;
 943         req.emr_in_buf = payload;
 944         req.emr_in_length = MC_CMD_GET_PARSER_DISP_INFO_IN_LEN;
 945         req.emr_out_buf = payload;
 946         req.emr_out_length = MC_CMD_GET_PARSER_DISP_INFO_OUT_LENMAX;
 947
 948         MCDI_IN_SET_DWORD(req, GET_PARSER_DISP_INFO_OUT_OP, encap ?
 949             MC_CMD_GET_PARSER_DISP_INFO_IN_OP_GET_SUPPORTED_ENCAP_RX_MATCHES :
 950             MC_CMD_GET_PARSER_DISP_INFO_IN_OP_GET_SUPPORTED_RX_MATCHES);
 951
 952         efx_mcdi_execute(enp, &req);
 953
 954         if (req.emr_rc != 0) {
 955                 rc = req.emr_rc;
 956                 goto fail1;
 957         }
 958
 959         matches_count = MCDI_OUT_DWORD(req,
 960             GET_PARSER_DISP_INFO_OUT_NUM_SUPPORTED_MATCHES);
 961
 962         if (req.emr_out_length_used <
 963             MC_CMD_GET_PARSER_DISP_INFO_OUT_LEN(matches_count)) {
 964                 rc = EMSGSIZE;
 965                 goto fail2;
 966         }
 967
 968         *list_lengthp = matches_count;
 969
 970         if (buffer_length < matches_count) {
 971                 rc = ENOSPC;
 972                 goto fail3;
 973         }
 974
 975         /*
 976          * Check that the elements in the list in the MCDI response are the size
 977          * we expect, so we can just copy them directly. Any conversion of the
 978          * flags is handled by the caller.
 979          */
 980         EFX_STATIC_ASSERT(sizeof (uint32_t) ==
 981             MC_CMD_GET_PARSER_DISP_INFO_OUT_SUPPORTED_MATCHES_LEN);
 982
 983         list_size = matches_count *
 984                 MC_CMD_GET_PARSER_DISP_INFO_OUT_SUPPORTED_MATCHES_LEN;
 985         memcpy(buffer,
 986             MCDI_OUT2(req, uint32_t,
 987                     GET_PARSER_DISP_INFO_OUT_SUPPORTED_MATCHES),
 988             list_size);
 989
 990         return (0);
 991
 992 fail3:
 993         EFSYS_PROBE(fail3);
 994 fail2:
 995         EFSYS_PROBE(fail2);
 996 fail1:
 997         EFSYS_PROBE1(fail1, efx_rc_t, rc);
 998
 999         return (rc);
1000 }
1001
1002         __checkReturn   efx_rc_t
1003 ef10_filter_supported_filters(
1004         __in                            efx_nic_t *enp,
1005         __out_ecount(buffer_length)     uint32_t *buffer,
1006         __in                            size_t buffer_length,
1007         __out                           size_t *list_lengthp)
1008 {
1009         efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
1010         size_t mcdi_list_length;
1011         size_t mcdi_encap_list_length;
1012         size_t list_length;
1013         uint32_t i;
1014         uint32_t next_buf_idx;
1015         size_t next_buf_length;
1016         efx_rc_t rc;
1017         boolean_t no_space = B_FALSE;
1018         efx_filter_match_flags_t all_filter_flags =
1019             (EFX_FILTER_MATCH_REM_HOST | EFX_FILTER_MATCH_LOC_HOST |
1020             EFX_FILTER_MATCH_REM_MAC | EFX_FILTER_MATCH_REM_PORT |
1021             EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_PORT |
1022             EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_INNER_VID |
1023             EFX_FILTER_MATCH_OUTER_VID | EFX_FILTER_MATCH_IP_PROTO |
1024             EFX_FILTER_MATCH_VNI_OR_VSID |
1025             EFX_FILTER_MATCH_IFRM_LOC_MAC |
1026             EFX_FILTER_MATCH_IFRM_UNKNOWN_MCAST_DST |
1027             EFX_FILTER_MATCH_IFRM_UNKNOWN_UCAST_DST |
1028             EFX_FILTER_MATCH_ENCAP_TYPE |
1029             EFX_FILTER_MATCH_UNKNOWN_MCAST_DST |
1030             EFX_FILTER_MATCH_UNKNOWN_UCAST_DST);
1031
1032         /*
1033          * Two calls to MC_CMD_GET_PARSER_DISP_INFO are needed: one to get the
1034          * list of supported filters for ordinary packets, and then another to
1035          * get the list of supported filters for encapsulated packets. To
1036          * distinguish the second list from the first, the
1037          * EFX_FILTER_MATCH_ENCAP_TYPE flag is added to each filter for
1038          * encapsulated packets.
1039          */
1040         rc = efx_mcdi_get_parser_disp_info(enp, buffer, buffer_length, B_FALSE,
1041             &mcdi_list_length);
1042         if (rc != 0) {
1043                 if (rc == ENOSPC)
1044                         no_space = B_TRUE;
1045                 else
1046                         goto fail1;
1047         }
1048
1049         if (no_space) {
1050                 next_buf_idx = 0;
1051                 next_buf_length = 0;
1052         } else {
1053                 EFSYS_ASSERT(mcdi_list_length <= buffer_length);
1054                 next_buf_idx = mcdi_list_length;
1055                 next_buf_length = buffer_length - mcdi_list_length;
1056         }
1057
1058         if (encp->enc_tunnel_encapsulations_supported != 0) {
1059                 rc = efx_mcdi_get_parser_disp_info(enp, &buffer[next_buf_idx],
1060                     next_buf_length, B_TRUE, &mcdi_encap_list_length);
1061                 if (rc != 0) {
1062                         if (rc == ENOSPC)
1063                                 no_space = B_TRUE;
1064                         else
1065                                 goto fail2;
1066                 } else {
1067                         for (i = next_buf_idx;
1068                             i < next_buf_idx + mcdi_encap_list_length; i++)
1069                                 buffer[i] |= EFX_FILTER_MATCH_ENCAP_TYPE;
1070                 }
1071         } else {
1072                 mcdi_encap_list_length = 0;
1073         }
1074
1075         if (no_space) {
1076                 *list_lengthp = mcdi_list_length + mcdi_encap_list_length;
1077                 rc = ENOSPC;
1078                 goto fail3;
1079         }
1080
1081         /*
1082          * The static assertions in ef10_filter_init() ensure that the values of
1083          * the EFX_FILTER_MATCH flags match those used by MCDI, so they don't
1084          * need to be converted.
1085          *
1086          * In case support is added to MCDI for additional flags, remove any
1087          * matches from the list which include flags we don't support. The order
1088          * of the matches is preserved as they are ordered from highest to
1089          * lowest priority.
1090          */
1091         EFSYS_ASSERT(mcdi_list_length + mcdi_encap_list_length <=
1092             buffer_length);
1093         list_length = 0;
1094         for (i = 0; i < mcdi_list_length + mcdi_encap_list_length; i++) {
1095                 if ((buffer[i] & ~all_filter_flags) == 0) {
1096                         buffer[list_length] = buffer[i];
1097                         list_length++;
1098                 }
1099         }
1100
1101         *list_lengthp = list_length;
1102
1103         return (0);
1104
1105 fail3:
1106         EFSYS_PROBE(fail3);
1107 fail2:
1108         EFSYS_PROBE(fail2);
1109 fail1:
1110         EFSYS_PROBE1(fail1, efx_rc_t, rc);
1111
1112         return (rc);
1113 }
1114
1115 static  __checkReturn   efx_rc_t
1116 ef10_filter_insert_unicast(
1117         __in                            efx_nic_t *enp,
1118         __in_ecount(6)                  uint8_t const *addr,
1119         __in                            efx_filter_flags_t filter_flags)
1120 {
1121         ef10_filter_table_t *eftp = enp->en_filter.ef_ef10_filter_table;
1122         efx_filter_spec_t spec;
1123         efx_rc_t rc;
1124
1125         /* Insert the filter for the local station address */
1126         efx_filter_spec_init_rx(&spec, EFX_FILTER_PRI_AUTO,
1127             filter_flags,
1128             eftp->eft_default_rxq);
1129         rc = efx_filter_spec_set_eth_local(&spec, EFX_FILTER_SPEC_VID_UNSPEC,
1130             addr);
1131         if (rc != 0)
1132                 goto fail1;
1133
1134         rc = ef10_filter_add_internal(enp, &spec, B_TRUE,
1135             &eftp->eft_unicst_filter_indexes[eftp->eft_unicst_filter_count]);
1136         if (rc != 0)
1137                 goto fail2;
1138
1139         eftp->eft_unicst_filter_count++;
1140         EFSYS_ASSERT(eftp->eft_unicst_filter_count <=
1141                     EFX_EF10_FILTER_UNICAST_FILTERS_MAX);
1142
1143         return (0);
1144
1145 fail2:
1146         EFSYS_PROBE(fail2);
1147 fail1:
1148         EFSYS_PROBE1(fail1, efx_rc_t, rc);
1149         return (rc);
1150 }
1151
1152 static  __checkReturn   efx_rc_t
1153 ef10_filter_insert_all_unicast(
1154         __in                            efx_nic_t *enp,
1155         __in                            efx_filter_flags_t filter_flags)
1156 {
1157         ef10_filter_table_t *eftp = enp->en_filter.ef_ef10_filter_table;
1158         efx_filter_spec_t spec;
1159         efx_rc_t rc;
1160
1161         /* Insert the unknown unicast filter */
1162         efx_filter_spec_init_rx(&spec, EFX_FILTER_PRI_AUTO,
1163             filter_flags,
1164             eftp->eft_default_rxq);
1165         rc = efx_filter_spec_set_uc_def(&spec);
1166         if (rc != 0)
1167                 goto fail1;
1168         rc = ef10_filter_add_internal(enp, &spec, B_TRUE,
1169             &eftp->eft_unicst_filter_indexes[eftp->eft_unicst_filter_count]);
1170         if (rc != 0)
1171                 goto fail2;
1172
1173         eftp->eft_unicst_filter_count++;
1174         EFSYS_ASSERT(eftp->eft_unicst_filter_count <=
1175                     EFX_EF10_FILTER_UNICAST_FILTERS_MAX);
1176
1177         return (0);
1178
1179 fail2:
1180         EFSYS_PROBE(fail2);
1181 fail1:
1182         EFSYS_PROBE1(fail1, efx_rc_t, rc);
1183         return (rc);
1184 }
1185
1186 static  __checkReturn   efx_rc_t
1187 ef10_filter_insert_multicast_list(
1188         __in                            efx_nic_t *enp,
1189         __in                            boolean_t mulcst,
1190         __in                            boolean_t brdcst,
1191         __in_ecount(6*count)            uint8_t const *addrs,
1192         __in                            uint32_t count,
1193         __in                            efx_filter_flags_t filter_flags,
1194         __in                            boolean_t rollback)
1195 {
1196         ef10_filter_table_t *eftp = enp->en_filter.ef_ef10_filter_table;
1197         efx_filter_spec_t spec;
1198         uint8_t addr[6];
1199         uint32_t i;
1200         uint32_t filter_index;
1201         uint32_t filter_count;
1202         efx_rc_t rc;
1203
1204         if (mulcst == B_FALSE)
1205                 count = 0;
1206
1207         if (count + (brdcst ? 1 : 0) >
1208             EFX_ARRAY_SIZE(eftp->eft_mulcst_filter_indexes)) {
1209                 /* Too many MAC addresses */
1210                 rc = EINVAL;
1211                 goto fail1;
1212         }
1213
1214         /* Insert/renew multicast address list filters */
1215         filter_count = 0;
1216         for (i = 0; i < count; i++) {
1217                 efx_filter_spec_init_rx(&spec,
1218                     EFX_FILTER_PRI_AUTO,
1219                     filter_flags,
1220                     eftp->eft_default_rxq);
1221
1222                 rc = efx_filter_spec_set_eth_local(&spec,
1223                     EFX_FILTER_SPEC_VID_UNSPEC,
1224                     &addrs[i * EFX_MAC_ADDR_LEN]);
1225                 if (rc != 0) {
1226                         if (rollback == B_TRUE) {
1227                                 /* Only stop upon failure if told to rollback */
1228                                 goto rollback;
1229                         } else {
1230                                 /*
1231                                  * Don't try to add a filter with a corrupt
1232                                  * specification.
1233                                  */
1234                                 continue;
1235                         }
1236                 }
1237
1238                 rc = ef10_filter_add_internal(enp, &spec, B_TRUE,
1239                                             &filter_index);
1240
1241                 if (rc == 0) {
1242                         eftp->eft_mulcst_filter_indexes[filter_count] =
1243                                 filter_index;
1244                         filter_count++;
1245                 } else if (rollback == B_TRUE) {
1246                         /* Only stop upon failure if told to rollback */
1247                         goto rollback;
1248                 }
1249
1250         }
1251
1252         if (brdcst == B_TRUE) {
1253                 /* Insert/renew broadcast address filter */
1254                 efx_filter_spec_init_rx(&spec, EFX_FILTER_PRI_AUTO,
1255                     filter_flags,
1256                     eftp->eft_default_rxq);
1257
1258                 EFX_MAC_BROADCAST_ADDR_SET(addr);
1259                 rc = efx_filter_spec_set_eth_local(&spec,
1260                     EFX_FILTER_SPEC_VID_UNSPEC, addr);
1261                 if ((rc != 0) && (rollback == B_TRUE)) {
1262                         /* Only stop upon failure if told to rollback */
1263                         goto rollback;
1264                 }
1265
1266                 rc = ef10_filter_add_internal(enp, &spec, B_TRUE,
1267                                             &filter_index);
1268
1269                 if (rc == 0) {
1270                         eftp->eft_mulcst_filter_indexes[filter_count] =
1271                                 filter_index;
1272                         filter_count++;
1273                 } else if (rollback == B_TRUE) {
1274                         /* Only stop upon failure if told to rollback */
1275                         goto rollback;
1276                 }
1277         }
1278
1279         eftp->eft_mulcst_filter_count = filter_count;
1280         eftp->eft_using_all_mulcst = B_FALSE;
1281
1282         return (0);
1283
1284 rollback:
1285         /* Remove any filters we have inserted */
1286         i = filter_count;
1287         while (i--) {
1288                 (void) ef10_filter_delete_internal(enp,
1289                     eftp->eft_mulcst_filter_indexes[i]);
1290         }
1291         eftp->eft_mulcst_filter_count = 0;
1292
1293 fail1:
1294         EFSYS_PROBE1(fail1, efx_rc_t, rc);
1295
1296         return (rc);
1297 }
1298
1299 static  __checkReturn   efx_rc_t
1300 ef10_filter_insert_all_multicast(
1301         __in                            efx_nic_t *enp,
1302         __in                            efx_filter_flags_t filter_flags)
1303 {
1304         ef10_filter_table_t *eftp = enp->en_filter.ef_ef10_filter_table;
1305         efx_filter_spec_t spec;
1306         efx_rc_t rc;
1307
1308         /* Insert the unknown multicast filter */
1309         efx_filter_spec_init_rx(&spec, EFX_FILTER_PRI_AUTO,
1310             filter_flags,
1311             eftp->eft_default_rxq);
1312         rc = efx_filter_spec_set_mc_def(&spec);
1313         if (rc != 0)
1314                 goto fail1;
1315
1316         rc = ef10_filter_add_internal(enp, &spec, B_TRUE,
1317             &eftp->eft_mulcst_filter_indexes[0]);
1318         if (rc != 0)
1319                 goto fail2;
1320
1321         eftp->eft_mulcst_filter_count = 1;
1322         eftp->eft_using_all_mulcst = B_TRUE;
1323
1324         /*
1325          * FIXME: If brdcst == B_FALSE, add a filter to drop broadcast traffic.
1326          */
1327
1328         return (0);
1329
1330 fail2:
1331         EFSYS_PROBE(fail2);
1332 fail1:
1333         EFSYS_PROBE1(fail1, efx_rc_t, rc);
1334
1335         return (rc);
1336 }
1337
1338 typedef struct ef10_filter_encap_entry_s {
1339         uint16_t                ether_type;
1340         efx_tunnel_protocol_t   encap_type;
1341         uint32_t                inner_frame_match;
1342 } ef10_filter_encap_entry_t;
1343
1344 #define EF10_ENCAP_FILTER_ENTRY(ipv, encap_type, inner_frame_match)     \
1345         { EFX_ETHER_TYPE_##ipv, EFX_TUNNEL_PROTOCOL_##encap_type,       \
1346             EFX_FILTER_INNER_FRAME_MATCH_UNKNOWN_##inner_frame_match }
1347
1348 static ef10_filter_encap_entry_t ef10_filter_encap_list[] = {
1349         EF10_ENCAP_FILTER_ENTRY(IPV4, VXLAN, UCAST_DST),
1350         EF10_ENCAP_FILTER_ENTRY(IPV4, VXLAN, MCAST_DST),
1351         EF10_ENCAP_FILTER_ENTRY(IPV6, VXLAN, UCAST_DST),
1352         EF10_ENCAP_FILTER_ENTRY(IPV6, VXLAN, MCAST_DST),
1353
1354         EF10_ENCAP_FILTER_ENTRY(IPV4, GENEVE, UCAST_DST),
1355         EF10_ENCAP_FILTER_ENTRY(IPV4, GENEVE, MCAST_DST),
1356         EF10_ENCAP_FILTER_ENTRY(IPV6, GENEVE, UCAST_DST),
1357         EF10_ENCAP_FILTER_ENTRY(IPV6, GENEVE, MCAST_DST),
1358
1359         EF10_ENCAP_FILTER_ENTRY(IPV4, NVGRE, UCAST_DST),
1360         EF10_ENCAP_FILTER_ENTRY(IPV4, NVGRE, MCAST_DST),
1361         EF10_ENCAP_FILTER_ENTRY(IPV6, NVGRE, UCAST_DST),
1362         EF10_ENCAP_FILTER_ENTRY(IPV6, NVGRE, MCAST_DST),
1363 };
1364
1365 #undef EF10_ENCAP_FILTER_ENTRY
1366
1367 static  __checkReturn   efx_rc_t
1368 ef10_filter_insert_encap_filters(
1369         __in            efx_nic_t *enp,
1370         __in            boolean_t mulcst,
1371         __in            efx_filter_flags_t filter_flags)
1372 {
1373         ef10_filter_table_t *table = enp->en_filter.ef_ef10_filter_table;
1374         uint32_t i;
1375         efx_rc_t rc;
1376
1377         EFX_STATIC_ASSERT(EFX_ARRAY_SIZE(ef10_filter_encap_list) <=
1378                             EFX_ARRAY_SIZE(table->eft_encap_filter_indexes));
1379
1380         /*
1381          * On Medford, full-featured firmware can identify packets as being
1382          * tunnel encapsulated, even if no encapsulated packet offloads are in
1383          * use. When packets are identified as such, ordinary filters are not
1384          * applied, only ones specific to encapsulated packets. Hence we need to
1385          * insert filters for encapsulated packets in order to receive them.
1386          *
1387          * Separate filters need to be inserted for each ether type,
1388          * encapsulation type, and inner frame type (unicast or multicast). To
1389          * keep things simple and reduce the number of filters needed, catch-all
1390          * filters for all combinations of types are inserted, even if
1391          * all_unicst or all_mulcst have not been set. (These catch-all filters
1392          * may well, however, fail to insert on unprivileged functions.)
1393          */
1394         table->eft_encap_filter_count = 0;
1395         for (i = 0; i < EFX_ARRAY_SIZE(ef10_filter_encap_list); i++) {
1396                 efx_filter_spec_t spec;
1397                 ef10_filter_encap_entry_t *encap_filter =
1398                         &ef10_filter_encap_list[i];
1399
1400                 /*
1401                  * Skip multicast filters if we've not been asked for
1402                  * any multicast traffic.
1403                  */
1404                 if ((mulcst == B_FALSE) &&
1405                     (encap_filter->inner_frame_match ==
1406                     EFX_FILTER_INNER_FRAME_MATCH_UNKNOWN_MCAST_DST))
1407                         continue;
1408
1409                 efx_filter_spec_init_rx(&spec, EFX_FILTER_PRI_AUTO,
1410                                         filter_flags,
1411                                         table->eft_default_rxq);
1412                 efx_filter_spec_set_ether_type(&spec, encap_filter->ether_type);
1413                 rc = efx_filter_spec_set_encap_type(&spec,
1414                                             encap_filter->encap_type,
1415                                             encap_filter->inner_frame_match);
1416                 if (rc != 0)
1417                         goto fail1;
1418
1419                 rc = ef10_filter_add_internal(enp, &spec, B_TRUE,
1420                             &table->eft_encap_filter_indexes[
1421                                     table->eft_encap_filter_count]);
1422                 if (rc != 0) {
1423                         if (rc != EACCES)
1424                                 goto fail2;
1425                 } else {
1426                         table->eft_encap_filter_count++;
1427                 }
1428         }
1429
1430         return (0);
1431
1432 fail2:
1433         EFSYS_PROBE(fail2);
1434 fail1:
1435         EFSYS_PROBE1(fail1, efx_rc_t, rc);
1436
1437         return (rc);
1438 }
1439
1440 static                  void
1441 ef10_filter_remove_old(
1442         __in            efx_nic_t *enp)
1443 {
1444         ef10_filter_table_t *table = enp->en_filter.ef_ef10_filter_table;
1445         uint32_t i;
1446
1447         for (i = 0; i < EFX_ARRAY_SIZE(table->eft_entry); i++) {
1448                 if (ef10_filter_entry_is_auto_old(table, i)) {
1449                         (void) ef10_filter_delete_internal(enp, i);
1450                 }
1451         }
1452 }
1453
1454
1455 static  __checkReturn   efx_rc_t
1456 ef10_filter_get_workarounds(
1457         __in                            efx_nic_t *enp)
1458 {
1459         efx_nic_cfg_t *encp = &enp->en_nic_cfg;
1460         uint32_t implemented = 0;
1461         uint32_t enabled = 0;
1462         efx_rc_t rc;
1463
1464         rc = efx_mcdi_get_workarounds(enp, &implemented, &enabled);
1465         if (rc == 0) {
1466                 /* Check if chained multicast filter support is enabled */
1467                 if (implemented & enabled & MC_CMD_GET_WORKAROUNDS_OUT_BUG26807)
1468                         encp->enc_bug26807_workaround = B_TRUE;
1469                 else
1470                         encp->enc_bug26807_workaround = B_FALSE;
1471         } else if (rc == ENOTSUP) {
1472                 /*
1473                  * Firmware is too old to support GET_WORKAROUNDS, and support
1474                  * for this workaround was implemented later.
1475                  */
1476                 encp->enc_bug26807_workaround = B_FALSE;
1477         } else {
1478                 goto fail1;
1479         }
1480
1481         return (0);
1482
1483 fail1:
1484         EFSYS_PROBE1(fail1, efx_rc_t, rc);
1485
1486         return (rc);
1487
1488 }
1489
1490
1491 /*
1492  * Reconfigure all filters.
1493  * If all_unicst and/or all mulcst filters cannot be applied then
1494  * return ENOTSUP (Note the filters for the specified addresses are
1495  * still applied in this case).
1496  */
1497         __checkReturn   efx_rc_t
1498 ef10_filter_reconfigure(
1499         __in                            efx_nic_t *enp,
1500         __in_ecount(6)                  uint8_t const *mac_addr,
1501         __in                            boolean_t all_unicst,
1502         __in                            boolean_t mulcst,
1503         __in                            boolean_t all_mulcst,
1504         __in                            boolean_t brdcst,
1505         __in_ecount(6*count)            uint8_t const *addrs,
1506         __in                            uint32_t count)
1507 {
1508         efx_nic_cfg_t *encp = &enp->en_nic_cfg;
1509         ef10_filter_table_t *table = enp->en_filter.ef_ef10_filter_table;
1510         efx_filter_flags_t filter_flags;
1511         unsigned int i;
1512         efx_rc_t all_unicst_rc = 0;
1513         efx_rc_t all_mulcst_rc = 0;
1514         efx_rc_t rc;
1515
1516         if (table->eft_default_rxq == NULL) {
1517                 /*
1518                  * Filters direct traffic to the default RXQ, and so cannot be
1519                  * inserted until it is available. Any currently configured
1520                  * filters must be removed (ignore errors in case the MC
1521                  * has rebooted, which removes hardware filters).
1522                  */
1523                 for (i = 0; i < table->eft_unicst_filter_count; i++) {
1524                         (void) ef10_filter_delete_internal(enp,
1525                                         table->eft_unicst_filter_indexes[i]);
1526                 }
1527                 table->eft_unicst_filter_count = 0;
1528
1529                 for (i = 0; i < table->eft_mulcst_filter_count; i++) {
1530                         (void) ef10_filter_delete_internal(enp,
1531                                         table->eft_mulcst_filter_indexes[i]);
1532                 }
1533                 table->eft_mulcst_filter_count = 0;
1534
1535                 for (i = 0; i < table->eft_encap_filter_count; i++) {
1536                         (void) ef10_filter_delete_internal(enp,
1537                                         table->eft_encap_filter_indexes[i]);
1538                 }
1539                 table->eft_encap_filter_count = 0;
1540
1541                 return (0);
1542         }
1543
1544         if (table->eft_using_rss)
1545                 filter_flags = EFX_FILTER_FLAG_RX_RSS;
1546         else
1547                 filter_flags = 0;
1548
1549         /* Mark old filters which may need to be removed */
1550         for (i = 0; i < table->eft_unicst_filter_count; i++) {
1551                 ef10_filter_set_entry_auto_old(table,
1552                                         table->eft_unicst_filter_indexes[i]);
1553         }
1554         for (i = 0; i < table->eft_mulcst_filter_count; i++) {
1555                 ef10_filter_set_entry_auto_old(table,
1556                                         table->eft_mulcst_filter_indexes[i]);
1557         }
1558         for (i = 0; i < table->eft_encap_filter_count; i++) {
1559                 ef10_filter_set_entry_auto_old(table,
1560                                         table->eft_encap_filter_indexes[i]);
1561         }
1562
1563         /*
1564          * Insert or renew unicast filters.
1565          *
1566          * Firmware does not perform chaining on unicast filters. As traffic is
1567          * therefore only delivered to the first matching filter, we should
1568          * always insert the specific filter for our MAC address, to try and
1569          * ensure we get that traffic.
1570          *
1571          * (If the filter for our MAC address has already been inserted by
1572          * another function, we won't receive traffic sent to us, even if we
1573          * insert a unicast mismatch filter. To prevent traffic stealing, this
1574          * therefore relies on the privilege model only allowing functions to
1575          * insert filters for their own MAC address unless explicitly given
1576          * additional privileges by the user. This also means that, even on a
1577          * priviliged function, inserting a unicast mismatch filter may not
1578          * catch all traffic in multi PCI function scenarios.)
1579          */
1580         table->eft_unicst_filter_count = 0;
1581         rc = ef10_filter_insert_unicast(enp, mac_addr, filter_flags);
1582         if (all_unicst || (rc != 0)) {
1583                 all_unicst_rc = ef10_filter_insert_all_unicast(enp,
1584                                                     filter_flags);
1585                 if ((rc != 0) && (all_unicst_rc != 0))
1586                         goto fail1;
1587         }
1588
1589         /*
1590          * WORKAROUND_BUG26807 controls firmware support for chained multicast
1591          * filters, and can only be enabled or disabled when the hardware filter
1592          * table is empty.
1593          *
1594          * Chained multicast filters require support from the datapath firmware,
1595          * and may not be available (e.g. low-latency variants or old Huntington
1596          * firmware).
1597          *
1598          * Firmware will reset (FLR) functions which have inserted filters in
1599          * the hardware filter table when the workaround is enabled/disabled.
1600          * Functions without any hardware filters are not reset.
1601          *
1602          * Re-check if the workaround is enabled after adding unicast hardware
1603          * filters. This ensures that encp->enc_bug26807_workaround matches the
1604          * firmware state, and that later changes to enable/disable the
1605          * workaround will result in this function seeing a reset (FLR).
1606          *
1607          * In common-code drivers, we only support multiple PCI function
1608          * scenarios with firmware that supports multicast chaining, so we can
1609          * assume it is enabled for such cases and hence simplify the filter
1610          * insertion logic. Firmware that does not support multicast chaining
1611          * does not support multiple PCI function configurations either, so
1612          * filter insertion is much simpler and the same strategies can still be
1613          * used.
1614          */
1615         if ((rc = ef10_filter_get_workarounds(enp)) != 0)
1616                 goto fail2;
1617
1618         if ((table->eft_using_all_mulcst != all_mulcst) &&
1619             (encp->enc_bug26807_workaround == B_TRUE)) {
1620                 /*
1621                  * Multicast filter chaining is enabled, so traffic that matches
1622                  * more than one multicast filter will be replicated and
1623                  * delivered to multiple recipients.  To avoid this duplicate
1624                  * delivery, remove old multicast filters before inserting new
1625                  * multicast filters.
1626                  */
1627                 ef10_filter_remove_old(enp);
1628         }
1629
1630         /* Insert or renew multicast filters */
1631         if (all_mulcst == B_TRUE) {
1632                 /*
1633                  * Insert the all multicast filter. If that fails, try to insert
1634                  * all of our multicast filters (but without rollback on
1635                  * failure).
1636                  */
1637                 all_mulcst_rc = ef10_filter_insert_all_multicast(enp,
1638                                                             filter_flags);
1639                 if (all_mulcst_rc != 0) {
1640                         rc = ef10_filter_insert_multicast_list(enp, B_TRUE,
1641                             brdcst, addrs, count, filter_flags, B_FALSE);
1642                         if (rc != 0)
1643                                 goto fail3;
1644                 }
1645         } else {
1646                 /*
1647                  * Insert filters for multicast addresses.
1648                  * If any insertion fails, then rollback and try to insert the
1649                  * all multicast filter instead.
1650                  * If that also fails, try to insert all of the multicast
1651                  * filters (but without rollback on failure).
1652                  */
1653                 rc = ef10_filter_insert_multicast_list(enp, mulcst, brdcst,
1654                             addrs, count, filter_flags, B_TRUE);
1655                 if (rc != 0) {
1656                         if ((table->eft_using_all_mulcst == B_FALSE) &&
1657                             (encp->enc_bug26807_workaround == B_TRUE)) {
1658                                 /*
1659                                  * Multicast filter chaining is on, so remove
1660                                  * old filters before inserting the multicast
1661                                  * all filter to avoid duplicate delivery caused
1662                                  * by packets matching multiple filters.
1663                                  */
1664                                 ef10_filter_remove_old(enp);
1665                         }
1666
1667                         rc = ef10_filter_insert_all_multicast(enp,
1668                                                             filter_flags);
1669                         if (rc != 0) {
1670                                 rc = ef10_filter_insert_multicast_list(enp,
1671                                     mulcst, brdcst,
1672                                     addrs, count, filter_flags, B_FALSE);
1673                                 if (rc != 0)
1674                                         goto fail4;
1675                         }
1676                 }
1677         }
1678
1679         if (encp->enc_tunnel_encapsulations_supported != 0) {
1680                 /* Try to insert filters for encapsulated packets. */
1681                 (void) ef10_filter_insert_encap_filters(enp,
1682                                             mulcst || all_mulcst || brdcst,
1683                                             filter_flags);
1684         }
1685
1686         /* Remove old filters which were not renewed */
1687         ef10_filter_remove_old(enp);
1688
1689         /* report if any optional flags were rejected */
1690         if (((all_unicst != B_FALSE) && (all_unicst_rc != 0)) ||
1691             ((all_mulcst != B_FALSE) && (all_mulcst_rc != 0))) {
1692                 rc = ENOTSUP;
1693         }
1694
1695         return (rc);
1696
1697 fail4:
1698         EFSYS_PROBE(fail4);
1699 fail3:
1700         EFSYS_PROBE(fail3);
1701 fail2:
1702         EFSYS_PROBE(fail2);
1703 fail1:
1704         EFSYS_PROBE1(fail1, efx_rc_t, rc);
1705
1706         /* Clear auto old flags */
1707         for (i = 0; i < EFX_ARRAY_SIZE(table->eft_entry); i++) {
1708                 if (ef10_filter_entry_is_auto_old(table, i)) {
1709                         ef10_filter_set_entry_not_auto_old(table, i);
1710                 }
1711         }
1712
1713         return (rc);
1714 }
1715
1716                 void
1717 ef10_filter_get_default_rxq(
1718         __in            efx_nic_t *enp,
1719         __out           efx_rxq_t **erpp,
1720         __out           boolean_t *using_rss)
1721 {
1722         ef10_filter_table_t *table = enp->en_filter.ef_ef10_filter_table;
1723
1724         *erpp = table->eft_default_rxq;
1725         *using_rss = table->eft_using_rss;
1726 }
1727
1728
1729                 void
1730 ef10_filter_default_rxq_set(
1731         __in            efx_nic_t *enp,
1732         __in            efx_rxq_t *erp,
1733         __in            boolean_t using_rss)
1734 {
1735         ef10_filter_table_t *table = enp->en_filter.ef_ef10_filter_table;
1736
1737 #if EFSYS_OPT_RX_SCALE
1738         EFSYS_ASSERT((using_rss == B_FALSE) ||
1739             (enp->en_rss_context != EF10_RSS_CONTEXT_INVALID));
1740         table->eft_using_rss = using_rss;
1741 #else
1742         EFSYS_ASSERT(using_rss == B_FALSE);
1743         table->eft_using_rss = B_FALSE;
1744 #endif
1745         table->eft_default_rxq = erp;
1746 }
1747
1748                 void
1749 ef10_filter_default_rxq_clear(
1750         __in            efx_nic_t *enp)
1751 {
1752         ef10_filter_table_t *table = enp->en_filter.ef_ef10_filter_table;
1753
1754         table->eft_default_rxq = NULL;
1755         table->eft_using_rss = B_FALSE;
1756 }
1757
1758
1759 #endif /* EFSYS_OPT_FILTER */
1760
1761 #endif /* EFX_OPTS_EF10() */