sys/dev/cxgbe/t4_filter.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   3  *
   4  * Copyright (c) 2018 Chelsio Communications, Inc.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28 #include <sys/cdefs.h>
  29 __FBSDID("$FreeBSD$");
  30
  31 #include "opt_inet.h"
  32 #include "opt_inet6.h"
  33
  34 #include <sys/param.h>
  35 #include <sys/eventhandler.h>
  36 #include <sys/fnv_hash.h>
  37 #include <sys/systm.h>
  38 #include <sys/kernel.h>
  39 #include <sys/module.h>
  40 #include <sys/bus.h>
  41 #include <sys/lock.h>
  42 #include <sys/mutex.h>
  43 #include <sys/rwlock.h>
  44 #include <sys/socket.h>
  45 #include <sys/sbuf.h>
  46 #include <netinet/in.h>
  47
  48 #include "common/common.h"
  49 #include "common/t4_msg.h"
  50 #include "common/t4_regs.h"
  51 #include "common/t4_regs_values.h"
  52 #include "common/t4_tcb.h"
  53 #include "t4_l2t.h"
  54 #include "t4_smt.h"
  55
  56 struct filter_entry {
  57         LIST_ENTRY(filter_entry) link_4t;
  58         LIST_ENTRY(filter_entry) link_tid;
  59
  60         uint32_t valid:1;       /* filter allocated and valid */
  61         uint32_t locked:1;      /* filter is administratively locked or busy */
  62         uint32_t pending:1;     /* filter action is pending firmware reply */
  63         int tid;                /* tid of the filter TCB */
  64         struct l2t_entry *l2te; /* L2 table entry for DMAC rewrite */
  65         struct smt_entry *smt;  /* SMT entry for SMAC rewrite */
  66
  67         struct t4_filter_specification fs;
  68 };
  69
  70 static void free_filter_resources(struct filter_entry *);
  71 static int get_tcamfilter(struct adapter *, struct t4_filter *);
  72 static int get_hashfilter(struct adapter *, struct t4_filter *);
  73 static int set_hashfilter(struct adapter *, struct t4_filter *, uint64_t,
  74     struct l2t_entry *, struct smt_entry *);
  75 static int del_hashfilter(struct adapter *, struct t4_filter *);
  76 static int configure_hashfilter_tcb(struct adapter *, struct filter_entry *);
  77
  78 static inline bool
  79 separate_hpfilter_region(struct adapter *sc)
  80 {
  81
  82         return (chip_id(sc) >= CHELSIO_T6);
  83 }
  84
  85 static inline uint32_t
  86 hf_hashfn_4t(struct t4_filter_specification *fs)
  87 {
  88         struct t4_filter_tuple *ft = &fs->val;
  89         uint32_t hash;
  90
  91         if (fs->type) {
  92                 /* IPv6 */
  93                 hash = fnv_32_buf(&ft->sip[0], 16, FNV1_32_INIT);
  94                 hash = fnv_32_buf(&ft->dip[0], 16, hash);
  95         } else {
  96                 hash = fnv_32_buf(&ft->sip[0], 4, FNV1_32_INIT);
  97                 hash = fnv_32_buf(&ft->dip[0], 4, hash);
  98         }
  99         hash = fnv_32_buf(&ft->sport, sizeof(ft->sport), hash);
 100         hash = fnv_32_buf(&ft->dport, sizeof(ft->dport), hash);
 101
 102         return (hash);
 103 }
 104
 105 static inline uint32_t
 106 hf_hashfn_tid(int tid)
 107 {
 108
 109         return (fnv_32_buf(&tid, sizeof(tid), FNV1_32_INIT));
 110 }
 111
 112 static int
 113 alloc_hftid_hash(struct tid_info *t, int flags)
 114 {
 115         int n;
 116
 117         MPASS(t->ntids > 0);
 118         MPASS(t->hftid_hash_4t == NULL);
 119         MPASS(t->hftid_hash_tid == NULL);
 120
 121         n = max(t->ntids / 1024, 16);
 122         t->hftid_hash_4t = hashinit_flags(n, M_CXGBE, &t->hftid_4t_mask, flags);
 123         if (t->hftid_hash_4t == NULL)
 124                 return (ENOMEM);
 125         t->hftid_hash_tid = hashinit_flags(n, M_CXGBE, &t->hftid_tid_mask,
 126             flags);
 127         if (t->hftid_hash_tid == NULL) {
 128                 hashdestroy(t->hftid_hash_4t, M_CXGBE, t->hftid_4t_mask);
 129                 t->hftid_hash_4t = NULL;
 130                 return (ENOMEM);
 131         }
 132
 133         mtx_init(&t->hftid_lock, "T4 hashfilters", 0, MTX_DEF);
 134         cv_init(&t->hftid_cv, "t4hfcv");
 135
 136         return (0);
 137 }
 138
 139 void
 140 free_hftid_hash(struct tid_info *t)
 141 {
 142         struct filter_entry *f, *ftmp;
 143         LIST_HEAD(, filter_entry) *head;
 144         int i;
 145 #ifdef INVARIANTS
 146         int n = 0;
 147 #endif
 148
 149         if (t->tids_in_use > 0) {
 150                 /* Remove everything from the tid hash. */
 151                 head = t->hftid_hash_tid;
 152                 for (i = 0; i <= t->hftid_tid_mask; i++) {
 153                         LIST_FOREACH_SAFE(f, &head[i], link_tid, ftmp) {
 154                                 LIST_REMOVE(f, link_tid);
 155                         }
 156                 }
 157
 158                 /* Remove and then free each filter in the 4t hash. */
 159                 head = t->hftid_hash_4t;
 160                 for (i = 0; i <= t->hftid_4t_mask; i++) {
 161                         LIST_FOREACH_SAFE(f, &head[i], link_4t, ftmp) {
 162 #ifdef INVARIANTS
 163                                 n += f->fs.type ? 2 : 1;
 164 #endif
 165                                 LIST_REMOVE(f, link_4t);
 166                                 free(f, M_CXGBE);
 167                         }
 168                 }
 169                 MPASS(t->tids_in_use == n);
 170                 t->tids_in_use = 0;
 171         }
 172
 173         if (t->hftid_hash_4t) {
 174                 hashdestroy(t->hftid_hash_4t, M_CXGBE, t->hftid_4t_mask);
 175                 t->hftid_hash_4t = NULL;
 176         }
 177         if (t->hftid_hash_tid) {
 178                 hashdestroy(t->hftid_hash_tid, M_CXGBE, t->hftid_tid_mask);
 179                 t->hftid_hash_tid = NULL;
 180         }
 181         if (mtx_initialized(&t->hftid_lock)) {
 182                 mtx_destroy(&t->hftid_lock);
 183                 cv_destroy(&t->hftid_cv);
 184         }
 185 }
 186
 187 static void
 188 insert_hf(struct adapter *sc, struct filter_entry *f, uint32_t hash)
 189 {
 190         struct tid_info *t = &sc->tids;
 191         LIST_HEAD(, filter_entry) *head = t->hftid_hash_4t;
 192
 193         MPASS(head != NULL);
 194         if (hash == 0)
 195                 hash = hf_hashfn_4t(&f->fs);
 196         LIST_INSERT_HEAD(&head[hash & t->hftid_4t_mask], f, link_4t);
 197         atomic_add_int(&t->tids_in_use, f->fs.type ? 2 : 1);
 198 }
 199
 200 static void
 201 insert_hftid(struct adapter *sc, struct filter_entry *f)
 202 {
 203         struct tid_info *t = &sc->tids;
 204         LIST_HEAD(, filter_entry) *head = t->hftid_hash_tid;
 205         uint32_t hash;
 206
 207         MPASS(f->tid >= t->tid_base);
 208         MPASS(f->tid - t->tid_base < t->ntids);
 209         mtx_assert(&t->hftid_lock, MA_OWNED);
 210
 211         hash = hf_hashfn_tid(f->tid);
 212         LIST_INSERT_HEAD(&head[hash & t->hftid_tid_mask], f, link_tid);
 213 }
 214
 215 static bool
 216 filter_eq(struct t4_filter_specification *fs1,
 217     struct t4_filter_specification *fs2)
 218 {
 219         int n;
 220
 221         MPASS(fs1->hash && fs2->hash);
 222
 223         if (fs1->type != fs2->type)
 224                 return (false);
 225
 226         n = fs1->type ? 16 : 4;
 227         if (bcmp(&fs1->val.sip[0], &fs2->val.sip[0], n) ||
 228             bcmp(&fs1->val.dip[0], &fs2->val.dip[0], n) ||
 229             fs1->val.sport != fs2->val.sport ||
 230             fs1->val.dport != fs2->val.dport)
 231                 return (false);
 232
 233         /*
 234          * We know the masks are the same because all hashfilter masks have to
 235          * conform to the global tp->hash_filter_mask and the driver has
 236          * verified that already.
 237          */
 238
 239         if ((fs1->mask.pfvf_vld || fs1->mask.ovlan_vld) &&
 240             fs1->val.vnic != fs2->val.vnic)
 241                 return (false);
 242         if (fs1->mask.vlan_vld && fs1->val.vlan != fs2->val.vlan)
 243                 return (false);
 244         if (fs1->mask.macidx && fs1->val.macidx != fs2->val.macidx)
 245                 return (false);
 246         if (fs1->mask.frag && fs1->val.frag != fs2->val.frag)
 247                 return (false);
 248         if (fs1->mask.matchtype && fs1->val.matchtype != fs2->val.matchtype)
 249                 return (false);
 250         if (fs1->mask.iport && fs1->val.iport != fs2->val.iport)
 251                 return (false);
 252         if (fs1->mask.fcoe && fs1->val.fcoe != fs2->val.fcoe)
 253                 return (false);
 254         if (fs1->mask.proto && fs1->val.proto != fs2->val.proto)
 255                 return (false);
 256         if (fs1->mask.tos && fs1->val.tos != fs2->val.tos)
 257                 return (false);
 258         if (fs1->mask.ethtype && fs1->val.ethtype != fs2->val.ethtype)
 259                 return (false);
 260
 261         return (true);
 262 }
 263
 264 static struct filter_entry *
 265 lookup_hf(struct adapter *sc, struct t4_filter_specification *fs, uint32_t hash)
 266 {
 267         struct tid_info *t = &sc->tids;
 268         LIST_HEAD(, filter_entry) *head = t->hftid_hash_4t;
 269         struct filter_entry *f;
 270
 271         mtx_assert(&t->hftid_lock, MA_OWNED);
 272         MPASS(head != NULL);
 273
 274         if (hash == 0)
 275                 hash = hf_hashfn_4t(fs);
 276
 277         LIST_FOREACH(f, &head[hash & t->hftid_4t_mask], link_4t) {
 278                 if (filter_eq(&f->fs, fs))
 279                         return (f);
 280         }
 281
 282         return (NULL);
 283 }
 284
 285 static struct filter_entry *
 286 lookup_hftid(struct adapter *sc, int tid)
 287 {
 288         struct tid_info *t = &sc->tids;
 289         LIST_HEAD(, filter_entry) *head = t->hftid_hash_tid;
 290         struct filter_entry *f;
 291         uint32_t hash;
 292
 293         mtx_assert(&t->hftid_lock, MA_OWNED);
 294         MPASS(head != NULL);
 295
 296         hash = hf_hashfn_tid(tid);
 297         LIST_FOREACH(f, &head[hash & t->hftid_tid_mask], link_tid) {
 298                 if (f->tid == tid)
 299                         return (f);
 300         }
 301
 302         return (NULL);
 303 }
 304
 305 static void
 306 remove_hf(struct adapter *sc, struct filter_entry *f)
 307 {
 308         struct tid_info *t = &sc->tids;
 309
 310         mtx_assert(&t->hftid_lock, MA_OWNED);
 311
 312         LIST_REMOVE(f, link_4t);
 313         atomic_subtract_int(&t->tids_in_use, f->fs.type ? 2 : 1);
 314 }
 315
 316 static void
 317 remove_hftid(struct adapter *sc, struct filter_entry *f)
 318 {
 319 #ifdef INVARIANTS
 320         struct tid_info *t = &sc->tids;
 321
 322         mtx_assert(&t->hftid_lock, MA_OWNED);
 323 #endif
 324
 325         LIST_REMOVE(f, link_tid);
 326 }
 327
 328 static uint32_t
 329 mode_to_fconf(uint32_t mode)
 330 {
 331         uint32_t fconf = 0;
 332
 333         if (mode & T4_FILTER_IP_FRAGMENT)
 334                 fconf |= F_FRAGMENTATION;
 335
 336         if (mode & T4_FILTER_MPS_HIT_TYPE)
 337                 fconf |= F_MPSHITTYPE;
 338
 339         if (mode & T4_FILTER_MAC_IDX)
 340                 fconf |= F_MACMATCH;
 341
 342         if (mode & T4_FILTER_ETH_TYPE)
 343                 fconf |= F_ETHERTYPE;
 344
 345         if (mode & T4_FILTER_IP_PROTO)
 346                 fconf |= F_PROTOCOL;
 347
 348         if (mode & T4_FILTER_IP_TOS)
 349                 fconf |= F_TOS;
 350
 351         if (mode & T4_FILTER_VLAN)
 352                 fconf |= F_VLAN;
 353
 354         if (mode & T4_FILTER_VNIC)
 355                 fconf |= F_VNIC_ID;
 356
 357         if (mode & T4_FILTER_PORT)
 358                 fconf |= F_PORT;
 359
 360         if (mode & T4_FILTER_FCoE)
 361                 fconf |= F_FCOE;
 362
 363         return (fconf);
 364 }
 365
 366 static uint32_t
 367 mode_to_iconf(uint32_t mode)
 368 {
 369
 370         if (mode & T4_FILTER_IC_VNIC)
 371                 return (F_VNIC);
 372         return (0);
 373 }
 374
 375 static int
 376 check_fspec_against_fconf_iconf(struct adapter *sc,
 377     struct t4_filter_specification *fs)
 378 {
 379         struct tp_params *tpp = &sc->params.tp;
 380         uint32_t fconf = 0;
 381
 382         if (fs->val.frag || fs->mask.frag)
 383                 fconf |= F_FRAGMENTATION;
 384
 385         if (fs->val.matchtype || fs->mask.matchtype)
 386                 fconf |= F_MPSHITTYPE;
 387
 388         if (fs->val.macidx || fs->mask.macidx)
 389                 fconf |= F_MACMATCH;
 390
 391         if (fs->val.ethtype || fs->mask.ethtype)
 392                 fconf |= F_ETHERTYPE;
 393
 394         if (fs->val.proto || fs->mask.proto)
 395                 fconf |= F_PROTOCOL;
 396
 397         if (fs->val.tos || fs->mask.tos)
 398                 fconf |= F_TOS;
 399
 400         if (fs->val.vlan_vld || fs->mask.vlan_vld)
 401                 fconf |= F_VLAN;
 402
 403         if (fs->val.ovlan_vld || fs->mask.ovlan_vld) {
 404                 fconf |= F_VNIC_ID;
 405                 if (tpp->ingress_config & F_VNIC)
 406                         return (EINVAL);
 407         }
 408
 409         if (fs->val.pfvf_vld || fs->mask.pfvf_vld) {
 410                 fconf |= F_VNIC_ID;
 411                 if ((tpp->ingress_config & F_VNIC) == 0)
 412                         return (EINVAL);
 413         }
 414
 415         if (fs->val.iport || fs->mask.iport)
 416                 fconf |= F_PORT;
 417
 418         if (fs->val.fcoe || fs->mask.fcoe)
 419                 fconf |= F_FCOE;
 420
 421         if ((tpp->vlan_pri_map | fconf) != tpp->vlan_pri_map)
 422                 return (E2BIG);
 423
 424         return (0);
 425 }
 426
 427 int
 428 get_filter_mode(struct adapter *sc, uint32_t *mode)
 429 {
 430         struct tp_params *tp = &sc->params.tp;
 431         uint64_t mask;
 432
 433         /* Non-zero incoming value in mode means "hashfilter mode". */
 434         mask = *mode ? tp->hash_filter_mask : UINT64_MAX;
 435
 436         /* Always */
 437         *mode = T4_FILTER_IPv4 | T4_FILTER_IPv6 | T4_FILTER_IP_SADDR |
 438             T4_FILTER_IP_DADDR | T4_FILTER_IP_SPORT | T4_FILTER_IP_DPORT;
 439
 440 #define CHECK_FIELD(fconf_bit, field_shift, field_mask, mode_bit)  do { \
 441         if (tp->vlan_pri_map & (fconf_bit)) { \
 442                 MPASS(tp->field_shift >= 0); \
 443                 if ((mask >> tp->field_shift & field_mask) == field_mask) \
 444                 *mode |= (mode_bit); \
 445         } \
 446 } while (0)
 447
 448         CHECK_FIELD(F_FRAGMENTATION, frag_shift, M_FT_FRAGMENTATION, T4_FILTER_IP_FRAGMENT);
 449         CHECK_FIELD(F_MPSHITTYPE, matchtype_shift, M_FT_MPSHITTYPE, T4_FILTER_MPS_HIT_TYPE);
 450         CHECK_FIELD(F_MACMATCH, macmatch_shift, M_FT_MACMATCH, T4_FILTER_MAC_IDX);
 451         CHECK_FIELD(F_ETHERTYPE, ethertype_shift, M_FT_ETHERTYPE, T4_FILTER_ETH_TYPE);
 452         CHECK_FIELD(F_PROTOCOL, protocol_shift, M_FT_PROTOCOL, T4_FILTER_IP_PROTO);
 453         CHECK_FIELD(F_TOS, tos_shift, M_FT_TOS, T4_FILTER_IP_TOS);
 454         CHECK_FIELD(F_VLAN, vlan_shift, M_FT_VLAN, T4_FILTER_VLAN);
 455         CHECK_FIELD(F_VNIC_ID, vnic_shift, M_FT_VNIC_ID , T4_FILTER_VNIC);
 456         if (tp->ingress_config & F_VNIC)
 457                 *mode |= T4_FILTER_IC_VNIC;
 458         CHECK_FIELD(F_PORT, port_shift, M_FT_PORT , T4_FILTER_PORT);
 459         CHECK_FIELD(F_FCOE, fcoe_shift, M_FT_FCOE , T4_FILTER_FCoE);
 460 #undef CHECK_FIELD
 461
 462         return (0);
 463 }
 464
 465 int
 466 set_filter_mode(struct adapter *sc, uint32_t mode)
 467 {
 468         struct tp_params *tpp = &sc->params.tp;
 469         uint32_t fconf, iconf;
 470         int rc;
 471
 472         iconf = mode_to_iconf(mode);
 473         if ((iconf ^ tpp->ingress_config) & F_VNIC) {
 474                 /*
 475                  * For now we just complain if A_TP_INGRESS_CONFIG is not
 476                  * already set to the correct value for the requested filter
 477                  * mode.  It's not clear if it's safe to write to this register
 478                  * on the fly.  (And we trust the cached value of the register).
 479                  *
 480                  * check_fspec_against_fconf_iconf and other code that looks at
 481                  * tp->vlan_pri_map and tp->ingress_config needs to be reviewed
 482                  * thorougly before allowing dynamic filter mode changes.
 483                  */
 484                 return (EBUSY);
 485         }
 486
 487         fconf = mode_to_fconf(mode);
 488
 489         rc = begin_synchronized_op(sc, NULL, HOLD_LOCK | SLEEP_OK | INTR_OK,
 490             "t4setfm");
 491         if (rc)
 492                 return (rc);
 493
 494         if (sc->tids.ftids_in_use > 0 || sc->tids.hpftids_in_use > 0) {
 495                 rc = EBUSY;
 496                 goto done;
 497         }
 498
 499 #ifdef TCP_OFFLOAD
 500         if (uld_active(sc, ULD_TOM)) {
 501                 rc = EBUSY;
 502                 goto done;
 503         }
 504 #endif
 505
 506         rc = -t4_set_filter_mode(sc, fconf, true);
 507 done:
 508         end_synchronized_op(sc, LOCK_HELD);
 509         return (rc);
 510 }
 511
 512 static inline uint64_t
 513 get_filter_hits(struct adapter *sc, uint32_t tid)
 514 {
 515         uint32_t tcb_addr;
 516
 517         tcb_addr = t4_read_reg(sc, A_TP_CMM_TCB_BASE) + tid * TCB_SIZE;
 518
 519         if (is_t4(sc)) {
 520                 uint64_t hits;
 521
 522                 read_via_memwin(sc, 0, tcb_addr + 16, (uint32_t *)&hits, 8);
 523                 return (be64toh(hits));
 524         } else {
 525                 uint32_t hits;
 526
 527                 read_via_memwin(sc, 0, tcb_addr + 24, &hits, 4);
 528                 return (be32toh(hits));
 529         }
 530 }
 531
 532 int
 533 get_filter(struct adapter *sc, struct t4_filter *t)
 534 {
 535         if (t->fs.hash)
 536                 return (get_hashfilter(sc, t));
 537         else
 538                 return (get_tcamfilter(sc, t));
 539 }
 540
 541 static int
 542 set_tcamfilter(struct adapter *sc, struct t4_filter *t, struct l2t_entry *l2te,
 543     struct smt_entry *smt)
 544 {
 545         struct filter_entry *f;
 546         struct fw_filter2_wr *fwr;
 547         u_int vnic_vld, vnic_vld_mask;
 548         struct wrq_cookie cookie;
 549         int i, rc, busy, locked;
 550         u_int tid;
 551         const int ntids = t->fs.type ? 4 : 1;
 552
 553         MPASS(!t->fs.hash);
 554         /* Already validated against fconf, iconf */
 555         MPASS((t->fs.val.pfvf_vld & t->fs.val.ovlan_vld) == 0);
 556         MPASS((t->fs.mask.pfvf_vld & t->fs.mask.ovlan_vld) == 0);
 557
 558         if (separate_hpfilter_region(sc) && t->fs.prio) {
 559                 MPASS(t->idx < sc->tids.nhpftids);
 560                 f = &sc->tids.hpftid_tab[t->idx];
 561                 tid = sc->tids.hpftid_base + t->idx;
 562         } else {
 563                 MPASS(t->idx < sc->tids.nftids);
 564                 f = &sc->tids.ftid_tab[t->idx];
 565                 tid = sc->tids.ftid_base + t->idx;
 566         }
 567         rc = busy = locked = 0;
 568         mtx_lock(&sc->tids.ftid_lock);
 569         for (i = 0; i < ntids; i++) {
 570                 busy += f[i].pending + f[i].valid;
 571                 locked += f[i].locked;
 572         }
 573         if (locked > 0)
 574                 rc = EPERM;
 575         else if (busy > 0)
 576                 rc = EBUSY;
 577         else {
 578                 int len16;
 579
 580                 if (sc->params.filter2_wr_support)
 581                         len16 = howmany(sizeof(struct fw_filter2_wr), 16);
 582                 else
 583                         len16 = howmany(sizeof(struct fw_filter_wr), 16);
 584                 fwr = start_wrq_wr(&sc->sge.ctrlq[0], len16, &cookie);
 585                 if (__predict_false(fwr == NULL))
 586                         rc = ENOMEM;
 587                 else {
 588                         f->pending = 1;
 589                         if (separate_hpfilter_region(sc) && t->fs.prio)
 590                                 sc->tids.hpftids_in_use++;
 591                         else
 592                                 sc->tids.ftids_in_use++;
 593                 }
 594         }
 595         mtx_unlock(&sc->tids.ftid_lock);
 596         if (rc != 0)
 597                 return (rc);
 598
 599         /*
 600          * Can't fail now.  A set-filter WR will definitely be sent.
 601          */
 602
 603         f->tid = tid;
 604         f->fs = t->fs;
 605         f->l2te = l2te;
 606         f->smt = smt;
 607
 608         if (t->fs.val.pfvf_vld || t->fs.val.ovlan_vld)
 609                 vnic_vld = 1;
 610         else
 611                 vnic_vld = 0;
 612         if (t->fs.mask.pfvf_vld || t->fs.mask.ovlan_vld)
 613                 vnic_vld_mask = 1;
 614         else
 615                 vnic_vld_mask = 0;
 616
 617         bzero(fwr, sizeof(*fwr));
 618         if (sc->params.filter2_wr_support)
 619                 fwr->op_pkd = htobe32(V_FW_WR_OP(FW_FILTER2_WR));
 620         else
 621                 fwr->op_pkd = htobe32(V_FW_WR_OP(FW_FILTER_WR));
 622         fwr->len16_pkd = htobe32(FW_LEN16(*fwr));
 623         fwr->tid_to_iq =
 624             htobe32(V_FW_FILTER_WR_TID(f->tid) |
 625                 V_FW_FILTER_WR_RQTYPE(f->fs.type) |
 626                 V_FW_FILTER_WR_NOREPLY(0) |
 627                 V_FW_FILTER_WR_IQ(f->fs.iq));
 628         fwr->del_filter_to_l2tix =
 629             htobe32(V_FW_FILTER_WR_RPTTID(f->fs.rpttid) |
 630                 V_FW_FILTER_WR_DROP(f->fs.action == FILTER_DROP) |
 631                 V_FW_FILTER_WR_DIRSTEER(f->fs.dirsteer) |
 632                 V_FW_FILTER_WR_MASKHASH(f->fs.maskhash) |
 633                 V_FW_FILTER_WR_DIRSTEERHASH(f->fs.dirsteerhash) |
 634                 V_FW_FILTER_WR_LPBK(f->fs.action == FILTER_SWITCH) |
 635                 V_FW_FILTER_WR_DMAC(f->fs.newdmac) |
 636                 V_FW_FILTER_WR_SMAC(f->fs.newsmac) |
 637                 V_FW_FILTER_WR_INSVLAN(f->fs.newvlan == VLAN_INSERT ||
 638                     f->fs.newvlan == VLAN_REWRITE) |
 639                 V_FW_FILTER_WR_RMVLAN(f->fs.newvlan == VLAN_REMOVE ||
 640                     f->fs.newvlan == VLAN_REWRITE) |
 641                 V_FW_FILTER_WR_HITCNTS(f->fs.hitcnts) |
 642                 V_FW_FILTER_WR_TXCHAN(f->fs.eport) |
 643                 V_FW_FILTER_WR_PRIO(f->fs.prio) |
 644                 V_FW_FILTER_WR_L2TIX(f->l2te ? f->l2te->idx : 0));
 645         fwr->ethtype = htobe16(f->fs.val.ethtype);
 646         fwr->ethtypem = htobe16(f->fs.mask.ethtype);
 647         fwr->frag_to_ovlan_vldm =
 648             (V_FW_FILTER_WR_FRAG(f->fs.val.frag) |
 649                 V_FW_FILTER_WR_FRAGM(f->fs.mask.frag) |
 650                 V_FW_FILTER_WR_IVLAN_VLD(f->fs.val.vlan_vld) |
 651                 V_FW_FILTER_WR_OVLAN_VLD(vnic_vld) |
 652                 V_FW_FILTER_WR_IVLAN_VLDM(f->fs.mask.vlan_vld) |
 653                 V_FW_FILTER_WR_OVLAN_VLDM(vnic_vld_mask));
 654         fwr->smac_sel = 0;
 655         fwr->rx_chan_rx_rpl_iq = htobe16(V_FW_FILTER_WR_RX_CHAN(0) |
 656             V_FW_FILTER_WR_RX_RPL_IQ(sc->sge.fwq.abs_id));
 657         fwr->maci_to_matchtypem =
 658             htobe32(V_FW_FILTER_WR_MACI(f->fs.val.macidx) |
 659                 V_FW_FILTER_WR_MACIM(f->fs.mask.macidx) |
 660                 V_FW_FILTER_WR_FCOE(f->fs.val.fcoe) |
 661                 V_FW_FILTER_WR_FCOEM(f->fs.mask.fcoe) |
 662                 V_FW_FILTER_WR_PORT(f->fs.val.iport) |
 663                 V_FW_FILTER_WR_PORTM(f->fs.mask.iport) |
 664                 V_FW_FILTER_WR_MATCHTYPE(f->fs.val.matchtype) |
 665                 V_FW_FILTER_WR_MATCHTYPEM(f->fs.mask.matchtype));
 666         fwr->ptcl = f->fs.val.proto;
 667         fwr->ptclm = f->fs.mask.proto;
 668         fwr->ttyp = f->fs.val.tos;
 669         fwr->ttypm = f->fs.mask.tos;
 670         fwr->ivlan = htobe16(f->fs.val.vlan);
 671         fwr->ivlanm = htobe16(f->fs.mask.vlan);
 672         fwr->ovlan = htobe16(f->fs.val.vnic);
 673         fwr->ovlanm = htobe16(f->fs.mask.vnic);
 674         bcopy(f->fs.val.dip, fwr->lip, sizeof (fwr->lip));
 675         bcopy(f->fs.mask.dip, fwr->lipm, sizeof (fwr->lipm));
 676         bcopy(f->fs.val.sip, fwr->fip, sizeof (fwr->fip));
 677         bcopy(f->fs.mask.sip, fwr->fipm, sizeof (fwr->fipm));
 678         fwr->lp = htobe16(f->fs.val.dport);
 679         fwr->lpm = htobe16(f->fs.mask.dport);
 680         fwr->fp = htobe16(f->fs.val.sport);
 681         fwr->fpm = htobe16(f->fs.mask.sport);
 682         /* sma = 0 tells the fw to use SMAC_SEL for source MAC address */
 683         bzero(fwr->sma, sizeof (fwr->sma));
 684         if (sc->params.filter2_wr_support) {
 685                 fwr->filter_type_swapmac =
 686                     V_FW_FILTER2_WR_SWAPMAC(f->fs.swapmac);
 687                 fwr->natmode_to_ulp_type =
 688                     V_FW_FILTER2_WR_ULP_TYPE(f->fs.nat_mode ?
 689                         ULP_MODE_TCPDDP : ULP_MODE_NONE) |
 690                     V_FW_FILTER2_WR_NATFLAGCHECK(f->fs.nat_flag_chk) |
 691                     V_FW_FILTER2_WR_NATMODE(f->fs.nat_mode);
 692                 memcpy(fwr->newlip, f->fs.nat_dip, sizeof(fwr->newlip));
 693                 memcpy(fwr->newfip, f->fs.nat_sip, sizeof(fwr->newfip));
 694                 fwr->newlport = htobe16(f->fs.nat_dport);
 695                 fwr->newfport = htobe16(f->fs.nat_sport);
 696                 fwr->natseqcheck = htobe32(f->fs.nat_seq_chk);
 697         }
 698         commit_wrq_wr(&sc->sge.ctrlq[0], fwr, &cookie);
 699
 700         /* Wait for response. */
 701         mtx_lock(&sc->tids.ftid_lock);
 702         for (;;) {
 703                 if (f->pending == 0) {
 704                         rc = f->valid ? 0 : EIO;
 705                         break;
 706                 }
 707                 if (cv_wait_sig(&sc->tids.ftid_cv, &sc->tids.ftid_lock) != 0) {
 708                         rc = EINPROGRESS;
 709                         break;
 710                 }
 711         }
 712         mtx_unlock(&sc->tids.ftid_lock);
 713         return (rc);
 714 }
 715
 716 static int
 717 hashfilter_ntuple(struct adapter *sc, const struct t4_filter_specification *fs,
 718     uint64_t *ftuple)
 719 {
 720         struct tp_params *tp = &sc->params.tp;
 721         uint64_t fmask;
 722
 723         *ftuple = fmask = 0;
 724
 725         /*
 726          * Initialize each of the fields which we care about which are present
 727          * in the Compressed Filter Tuple.
 728          */
 729         if (tp->vlan_shift >= 0 && fs->mask.vlan) {
 730                 *ftuple |= (F_FT_VLAN_VLD | fs->val.vlan) << tp->vlan_shift;
 731                 fmask |= M_FT_VLAN << tp->vlan_shift;
 732         }
 733
 734         if (tp->port_shift >= 0 && fs->mask.iport) {
 735                 *ftuple |= (uint64_t)fs->val.iport << tp->port_shift;
 736                 fmask |= M_FT_PORT << tp->port_shift;
 737         }
 738
 739         if (tp->protocol_shift >= 0 && fs->mask.proto) {
 740                 *ftuple |= (uint64_t)fs->val.proto << tp->protocol_shift;
 741                 fmask |= M_FT_PROTOCOL << tp->protocol_shift;
 742         }
 743
 744         if (tp->tos_shift >= 0 && fs->mask.tos) {
 745                 *ftuple |= (uint64_t)(fs->val.tos) << tp->tos_shift;
 746                 fmask |= M_FT_TOS << tp->tos_shift;
 747         }
 748
 749         if (tp->vnic_shift >= 0 && fs->mask.vnic) {
 750                 /* F_VNIC in ingress config was already validated. */
 751                 if (tp->ingress_config & F_VNIC)
 752                         MPASS(fs->mask.pfvf_vld);
 753                 else
 754                         MPASS(fs->mask.ovlan_vld);
 755
 756                 *ftuple |= ((1ULL << 16) | fs->val.vnic) << tp->vnic_shift;
 757                 fmask |= M_FT_VNIC_ID << tp->vnic_shift;
 758         }
 759
 760         if (tp->macmatch_shift >= 0 && fs->mask.macidx) {
 761                 *ftuple |= (uint64_t)(fs->val.macidx) << tp->macmatch_shift;
 762                 fmask |= M_FT_MACMATCH << tp->macmatch_shift;
 763         }
 764
 765         if (tp->ethertype_shift >= 0 && fs->mask.ethtype) {
 766                 *ftuple |= (uint64_t)(fs->val.ethtype) << tp->ethertype_shift;
 767                 fmask |= M_FT_ETHERTYPE << tp->ethertype_shift;
 768         }
 769
 770         if (tp->matchtype_shift >= 0 && fs->mask.matchtype) {
 771                 *ftuple |= (uint64_t)(fs->val.matchtype) << tp->matchtype_shift;
 772                 fmask |= M_FT_MPSHITTYPE << tp->matchtype_shift;
 773         }
 774
 775         if (tp->frag_shift >= 0 && fs->mask.frag) {
 776                 *ftuple |= (uint64_t)(fs->val.frag) << tp->frag_shift;
 777                 fmask |= M_FT_FRAGMENTATION << tp->frag_shift;
 778         }
 779
 780         if (tp->fcoe_shift >= 0 && fs->mask.fcoe) {
 781                 *ftuple |= (uint64_t)(fs->val.fcoe) << tp->fcoe_shift;
 782                 fmask |= M_FT_FCOE << tp->fcoe_shift;
 783         }
 784
 785         /* A hashfilter must conform to the filterMask. */
 786         if (fmask != tp->hash_filter_mask)
 787                 return (EINVAL);
 788
 789         return (0);
 790 }
 791
 792 static bool
 793 is_4tuple_specified(struct t4_filter_specification *fs)
 794 {
 795         int i;
 796         const int n = fs->type ? 16 : 4;
 797
 798         if (fs->mask.sport != 0xffff || fs->mask.dport != 0xffff)
 799                 return (false);
 800
 801         for (i = 0; i < n; i++) {
 802                 if (fs->mask.sip[i] != 0xff)
 803                         return (false);
 804                 if (fs->mask.dip[i] != 0xff)
 805                         return (false);
 806         }
 807
 808         return (true);
 809 }
 810
 811 int
 812 set_filter(struct adapter *sc, struct t4_filter *t)
 813 {
 814         struct tid_info *ti = &sc->tids;
 815         struct l2t_entry *l2te = NULL;
 816         struct smt_entry *smt = NULL;
 817         uint64_t ftuple;
 818         int rc;
 819
 820         /*
 821          * Basic filter checks first.
 822          */
 823
 824         if (t->fs.hash) {
 825                 if (!is_hashfilter(sc) || ti->ntids == 0)
 826                         return (ENOTSUP);
 827                 /* Hardware, not user, selects a tid for hashfilters. */
 828                 if (t->idx != (uint32_t)-1)
 829                         return (EINVAL);
 830                 /* T5 can't count hashfilter hits. */
 831                 if (is_t5(sc) && t->fs.hitcnts)
 832                         return (EINVAL);
 833                 if (!is_4tuple_specified(&t->fs))
 834                         return (EINVAL);
 835                 rc = hashfilter_ntuple(sc, &t->fs, &ftuple);
 836                 if (rc != 0)
 837                         return (rc);
 838         } else {
 839                 if (separate_hpfilter_region(sc) && t->fs.prio) {
 840                         if (ti->nhpftids == 0)
 841                                 return (ENOTSUP);
 842                         if (t->idx >= ti->nhpftids)
 843                                 return (EINVAL);
 844                 } else {
 845                         if (ti->nftids == 0)
 846                                 return (ENOTSUP);
 847                         if (t->idx >= ti->nftids)
 848                                 return (EINVAL);
 849                 }
 850                 /* IPv6 filter idx must be 4 aligned */
 851                 if (t->fs.type == 1 &&
 852                     ((t->idx & 0x3) || t->idx + 4 >= ti->nftids))
 853                         return (EINVAL);
 854         }
 855
 856         /* T4 doesn't support VLAN tag removal or rewrite, swapmac, and NAT. */
 857         if (is_t4(sc) && t->fs.action == FILTER_SWITCH &&
 858             (t->fs.newvlan == VLAN_REMOVE || t->fs.newvlan == VLAN_REWRITE ||
 859             t->fs.swapmac || t->fs.nat_mode))
 860                 return (ENOTSUP);
 861
 862         if (t->fs.action == FILTER_SWITCH && t->fs.eport >= sc->params.nports)
 863                 return (EINVAL);
 864         if (t->fs.val.iport >= sc->params.nports)
 865                 return (EINVAL);
 866
 867         /* Can't specify an iqid/rss_info if not steering. */
 868         if (!t->fs.dirsteer && !t->fs.dirsteerhash && !t->fs.maskhash && t->fs.iq)
 869                 return (EINVAL);
 870
 871         /* Validate against the global filter mode and ingress config */
 872         rc = check_fspec_against_fconf_iconf(sc, &t->fs);
 873         if (rc != 0)
 874                 return (rc);
 875
 876         /*
 877          * Basic checks passed.  Make sure the queues and tid tables are setup.
 878          */
 879
 880         rc = begin_synchronized_op(sc, NULL, SLEEP_OK | INTR_OK, "t4setf");
 881         if (rc)
 882                 return (rc);
 883         if (!(sc->flags & FULL_INIT_DONE) &&
 884             ((rc = adapter_full_init(sc)) != 0)) {
 885                 end_synchronized_op(sc, 0);
 886                 return (rc);
 887         }
 888         if (t->fs.hash) {
 889                 if (__predict_false(ti->hftid_hash_4t == NULL)) {
 890                         rc = alloc_hftid_hash(&sc->tids, HASH_NOWAIT);
 891                         if (rc != 0)
 892                                 goto done;
 893                 }
 894         } else if (separate_hpfilter_region(sc) && t->fs.prio &&
 895             __predict_false(ti->hpftid_tab == NULL)) {
 896                 MPASS(ti->nhpftids != 0);
 897                 KASSERT(ti->hpftids_in_use == 0,
 898                     ("%s: no memory allocated but hpftids_in_use is %u",
 899                     __func__, ti->hpftids_in_use));
 900                 ti->hpftid_tab = malloc(sizeof(struct filter_entry) *
 901                     ti->nhpftids, M_CXGBE, M_NOWAIT | M_ZERO);
 902                 if (ti->hpftid_tab == NULL) {
 903                         rc = ENOMEM;
 904                         goto done;
 905                 }
 906                 if (!mtx_initialized(&sc->tids.ftid_lock)) {
 907                         mtx_init(&ti->ftid_lock, "T4 filters", 0, MTX_DEF);
 908                         cv_init(&ti->ftid_cv, "t4fcv");
 909                 }
 910         } else if (__predict_false(ti->ftid_tab == NULL)) {
 911                 MPASS(ti->nftids != 0);
 912                 KASSERT(ti->ftids_in_use == 0,
 913                     ("%s: no memory allocated but ftids_in_use is %u",
 914                     __func__, ti->ftids_in_use));
 915                 ti->ftid_tab = malloc(sizeof(struct filter_entry) * ti->nftids,
 916                     M_CXGBE, M_NOWAIT | M_ZERO);
 917                 if (ti->ftid_tab == NULL) {
 918                         rc = ENOMEM;
 919                         goto done;
 920                 }
 921                 if (!mtx_initialized(&sc->tids.ftid_lock)) {
 922                         mtx_init(&ti->ftid_lock, "T4 filters", 0, MTX_DEF);
 923                         cv_init(&ti->ftid_cv, "t4fcv");
 924                 }
 925         }
 926 done:
 927         end_synchronized_op(sc, 0);
 928         if (rc != 0)
 929                 return (rc);
 930
 931         /*
 932          * Allocate L2T entry, SMT entry, etc.
 933          */
 934
 935         if (t->fs.newdmac || t->fs.newvlan) {
 936                 /* This filter needs an L2T entry; allocate one. */
 937                 l2te = t4_l2t_alloc_switching(sc, t->fs.vlan, t->fs.eport,
 938                     t->fs.dmac);
 939                 if (__predict_false(l2te == NULL)) {
 940                         rc = EAGAIN;
 941                         goto error;
 942                 }
 943         }
 944
 945         if (t->fs.newsmac) {
 946                 /* This filter needs an SMT entry; allocate one. */
 947                 smt = t4_smt_alloc_switching(sc->smt, t->fs.smac);
 948                 if (__predict_false(smt == NULL)) {
 949                         rc = EAGAIN;
 950                         goto error;
 951                 }
 952                 rc = t4_smt_set_switching(sc, smt, 0x0, t->fs.smac);
 953                 if (rc)
 954                         goto error;
 955         }
 956
 957         if (t->fs.hash)
 958                 rc = set_hashfilter(sc, t, ftuple, l2te, smt);
 959         else
 960                 rc = set_tcamfilter(sc, t, l2te, smt);
 961
 962         if (rc != 0 && rc != EINPROGRESS) {
 963 error:
 964                 if (l2te)
 965                         t4_l2t_release(l2te);
 966                 if (smt)
 967                         t4_smt_release(smt);
 968         }
 969         return (rc);
 970 }
 971
 972 static int
 973 del_tcamfilter(struct adapter *sc, struct t4_filter *t)
 974 {
 975         struct filter_entry *f;
 976         struct fw_filter_wr *fwr;
 977         struct wrq_cookie cookie;
 978         int rc, nfilters;
 979 #ifdef INVARIANTS
 980         u_int tid_base;
 981 #endif
 982
 983         mtx_lock(&sc->tids.ftid_lock);
 984         if (separate_hpfilter_region(sc) && t->fs.prio) {
 985                 nfilters = sc->tids.nhpftids;
 986                 f = sc->tids.hpftid_tab;
 987 #ifdef INVARIANTS
 988                 tid_base = sc->tids.hpftid_base;
 989 #endif
 990         } else {
 991                 nfilters = sc->tids.nftids;
 992                 f = sc->tids.ftid_tab;
 993 #ifdef INVARIANTS
 994                 tid_base = sc->tids.ftid_base;
 995 #endif
 996         }
 997         MPASS(f != NULL);       /* Caller checked this. */
 998         if (t->idx >= nfilters) {
 999                 rc = EINVAL;
1000                 goto done;
1001         }
1002         f += t->idx;
1003
1004         if (f->locked) {
1005                 rc = EPERM;
1006                 goto done;
1007         }
1008         if (f->pending) {
1009                 rc = EBUSY;
1010                 goto done;
1011         }
1012         if (f->valid == 0) {
1013                 rc = EINVAL;
1014                 goto done;
1015         }
1016         MPASS(f->tid == tid_base + t->idx);
1017         fwr = start_wrq_wr(&sc->sge.ctrlq[0], howmany(sizeof(*fwr), 16), &cookie);
1018         if (fwr == NULL) {
1019                 rc = ENOMEM;
1020                 goto done;
1021         }
1022
1023         bzero(fwr, sizeof (*fwr));
1024         t4_mk_filtdelwr(f->tid, fwr, sc->sge.fwq.abs_id);
1025         f->pending = 1;
1026         commit_wrq_wr(&sc->sge.ctrlq[0], fwr, &cookie);
1027         t->fs = f->fs;  /* extra info for the caller */
1028
1029         for (;;) {
1030                 if (f->pending == 0) {
1031                         rc = f->valid ? EIO : 0;
1032                         break;
1033                 }
1034                 if (cv_wait_sig(&sc->tids.ftid_cv, &sc->tids.ftid_lock) != 0) {
1035                         rc = EINPROGRESS;
1036                         break;
1037                 }
1038         }
1039 done:
1040         mtx_unlock(&sc->tids.ftid_lock);
1041         return (rc);
1042 }
1043
1044 int
1045 del_filter(struct adapter *sc, struct t4_filter *t)
1046 {
1047
1048         /* No filters possible if not initialized yet. */
1049         if (!(sc->flags & FULL_INIT_DONE))
1050                 return (EINVAL);
1051
1052         /*
1053          * The checks for tid tables ensure that the locks that del_* will reach
1054          * for are initialized.
1055          */
1056         if (t->fs.hash) {
1057                 if (sc->tids.hftid_hash_4t != NULL)
1058                         return (del_hashfilter(sc, t));
1059         } else if (separate_hpfilter_region(sc) && t->fs.prio) {
1060                 if (sc->tids.hpftid_tab != NULL)
1061                         return (del_tcamfilter(sc, t));
1062         } else {
1063                 if (sc->tids.ftid_tab != NULL)
1064                         return (del_tcamfilter(sc, t));
1065         }
1066
1067         return (EINVAL);
1068 }
1069
1070 /*
1071  * Release secondary resources associated with the filter.
1072  */
1073 static void
1074 free_filter_resources(struct filter_entry *f)
1075 {
1076
1077         if (f->l2te) {
1078                 t4_l2t_release(f->l2te);
1079                 f->l2te = NULL;
1080         }
1081         if (f->smt) {
1082                 t4_smt_release(f->smt);
1083                 f->smt = NULL;
1084         }
1085 }
1086
1087 static int
1088 set_tcb_field(struct adapter *sc, u_int tid, uint16_t word, uint64_t mask,
1089     uint64_t val, int no_reply)
1090 {
1091         struct wrq_cookie cookie;
1092         struct cpl_set_tcb_field *req;
1093
1094         req = start_wrq_wr(&sc->sge.ctrlq[0], howmany(sizeof(*req), 16), &cookie);
1095         if (req == NULL)
1096                 return (ENOMEM);
1097         bzero(req, sizeof(*req));
1098         INIT_TP_WR_MIT_CPL(req, CPL_SET_TCB_FIELD, tid);
1099         if (no_reply == 0) {
1100                 req->reply_ctrl = htobe16(V_QUEUENO(sc->sge.fwq.abs_id) |
1101                     V_NO_REPLY(0));
1102         } else
1103                 req->reply_ctrl = htobe16(V_NO_REPLY(1));
1104         req->word_cookie = htobe16(V_WORD(word) | V_COOKIE(CPL_COOKIE_HASHFILTER));
1105         req->mask = htobe64(mask);
1106         req->val = htobe64(val);
1107         commit_wrq_wr(&sc->sge.ctrlq[0], req, &cookie);
1108
1109         return (0);
1110 }
1111
1112 /* Set one of the t_flags bits in the TCB. */
1113 static inline int
1114 set_tcb_tflag(struct adapter *sc, int tid, u_int bit_pos, u_int val,
1115     u_int no_reply)
1116 {
1117
1118         return (set_tcb_field(sc, tid,  W_TCB_T_FLAGS, 1ULL << bit_pos,
1119             (uint64_t)val << bit_pos, no_reply));
1120 }
1121
1122 int
1123 t4_filter_rpl(struct sge_iq *iq, const struct rss_header *rss, struct mbuf *m)
1124 {
1125         struct adapter *sc = iq->adapter;
1126         const struct cpl_set_tcb_rpl *rpl = (const void *)(rss + 1);
1127         u_int tid = GET_TID(rpl);
1128         u_int rc, idx;
1129         struct filter_entry *f;
1130
1131         KASSERT(m == NULL, ("%s: payload with opcode %02x", __func__,
1132             rss->opcode));
1133
1134
1135         if (is_hpftid(sc, tid)) {
1136                 idx = tid - sc->tids.hpftid_base;
1137                 f = &sc->tids.hpftid_tab[idx];
1138         } else if (is_ftid(sc, tid)) {
1139                 idx = tid - sc->tids.ftid_base;
1140                 f = &sc->tids.ftid_tab[idx];
1141         } else
1142                 panic("%s: FW reply for invalid TID %d.", __func__, tid);
1143
1144         MPASS(f->tid == tid);
1145         rc = G_COOKIE(rpl->cookie);
1146
1147         mtx_lock(&sc->tids.ftid_lock);
1148         KASSERT(f->pending, ("%s: reply %d for filter[%u] that isn't pending.",
1149             __func__, rc, tid));
1150         switch(rc) {
1151         case FW_FILTER_WR_FLT_ADDED:
1152                 /* set-filter succeeded */
1153                 f->valid = 1;
1154                 if (f->fs.newsmac) {
1155                         MPASS(f->smt != NULL);
1156                         set_tcb_tflag(sc, f->tid, S_TF_CCTRL_CWR, 1, 1);
1157                         set_tcb_field(sc, f->tid, W_TCB_SMAC_SEL,
1158                             V_TCB_SMAC_SEL(M_TCB_SMAC_SEL),
1159                             V_TCB_SMAC_SEL(f->smt->idx), 1);
1160                         /* XXX: wait for reply to TCB update before !pending */
1161                 }
1162                 break;
1163         case FW_FILTER_WR_FLT_DELETED:
1164                 /* del-filter succeeded */
1165                 MPASS(f->valid == 1);
1166                 f->valid = 0;
1167                 /* Fall through */
1168         case FW_FILTER_WR_SMT_TBL_FULL:
1169                 /* set-filter failed due to lack of SMT space. */
1170                 MPASS(f->valid == 0);
1171                 free_filter_resources(f);
1172                 if (separate_hpfilter_region(sc) && f->fs.prio)
1173                         sc->tids.hpftids_in_use--;
1174                 else
1175                         sc->tids.ftids_in_use--;
1176                 break;
1177         case FW_FILTER_WR_SUCCESS:
1178         case FW_FILTER_WR_EINVAL:
1179         default:
1180                 panic("%s: unexpected reply %d for filter[%d].", __func__, rc,
1181                     idx);
1182         }
1183         f->pending = 0;
1184         cv_broadcast(&sc->tids.ftid_cv);
1185         mtx_unlock(&sc->tids.ftid_lock);
1186
1187         return (0);
1188 }
1189
1190 /*
1191  * This is the reply to the Active Open that created the filter.  Additional TCB
1192  * updates may be required to complete the filter configuration.
1193  */
1194 int
1195 t4_hashfilter_ao_rpl(struct sge_iq *iq, const struct rss_header *rss,
1196     struct mbuf *m)
1197 {
1198         struct adapter *sc = iq->adapter;
1199         const struct cpl_act_open_rpl *cpl = (const void *)(rss + 1);
1200         u_int atid = G_TID_TID(G_AOPEN_ATID(be32toh(cpl->atid_status)));
1201         u_int status = G_AOPEN_STATUS(be32toh(cpl->atid_status));
1202         struct filter_entry *f = lookup_atid(sc, atid);
1203
1204         KASSERT(m == NULL, ("%s: wasn't expecting payload", __func__));
1205
1206         mtx_lock(&sc->tids.hftid_lock);
1207         KASSERT(f->pending, ("%s: hashfilter[%p] isn't pending.", __func__, f));
1208         KASSERT(f->tid == -1, ("%s: hashfilter[%p] has tid %d already.",
1209             __func__, f, f->tid));
1210         if (status == CPL_ERR_NONE) {
1211                 f->tid = GET_TID(cpl);
1212                 MPASS(lookup_hftid(sc, f->tid) == NULL);
1213                 insert_hftid(sc, f);
1214                 /*
1215                  * Leave the filter pending until it is fully set up, which will
1216                  * be indicated by the reply to the last TCB update.  No need to
1217                  * unblock the ioctl thread either.
1218                  */
1219                 if (configure_hashfilter_tcb(sc, f) == EINPROGRESS)
1220                         goto done;
1221                 f->valid = 1;
1222                 f->pending = 0;
1223         } else {
1224                 /* provide errno instead of tid to ioctl */
1225                 f->tid = act_open_rpl_status_to_errno(status);
1226                 f->valid = 0;
1227                 f->pending = 0;
1228                 if (act_open_has_tid(status))
1229                         release_tid(sc, GET_TID(cpl), &sc->sge.ctrlq[0]);
1230                 free_filter_resources(f);
1231                 remove_hf(sc, f);
1232                 if (f->locked == 0)
1233                         free(f, M_CXGBE);
1234         }
1235         cv_broadcast(&sc->tids.hftid_cv);
1236 done:
1237         mtx_unlock(&sc->tids.hftid_lock);
1238
1239         free_atid(sc, atid);
1240         return (0);
1241 }
1242
1243 int
1244 t4_hashfilter_tcb_rpl(struct sge_iq *iq, const struct rss_header *rss,
1245     struct mbuf *m)
1246 {
1247         struct adapter *sc = iq->adapter;
1248         const struct cpl_set_tcb_rpl *rpl = (const void *)(rss + 1);
1249         u_int tid = GET_TID(rpl);
1250         struct filter_entry *f;
1251
1252         mtx_lock(&sc->tids.hftid_lock);
1253         f = lookup_hftid(sc, tid);
1254         KASSERT(f->tid == tid, ("%s: filter tid mismatch", __func__));
1255         KASSERT(f->pending, ("%s: hashfilter %p [%u] isn't pending.", __func__,
1256             f, tid));
1257         KASSERT(f->valid == 0, ("%s: hashfilter %p [%u] is valid already.",
1258             __func__, f, tid));
1259         f->pending = 0;
1260         if (rpl->status == 0) {
1261                 f->valid = 1;
1262         } else {
1263                 f->tid = EIO;
1264                 f->valid = 0;
1265                 free_filter_resources(f);
1266                 remove_hftid(sc, f);
1267                 remove_hf(sc, f);
1268                 release_tid(sc, tid, &sc->sge.ctrlq[0]);
1269                 if (f->locked == 0)
1270                         free(f, M_CXGBE);
1271         }
1272         cv_broadcast(&sc->tids.hftid_cv);
1273         mtx_unlock(&sc->tids.hftid_lock);
1274
1275         return (0);
1276 }
1277
1278 int
1279 t4_del_hashfilter_rpl(struct sge_iq *iq, const struct rss_header *rss,
1280     struct mbuf *m)
1281 {
1282         struct adapter *sc = iq->adapter;
1283         const struct cpl_abort_rpl_rss *cpl = (const void *)(rss + 1);
1284         unsigned int tid = GET_TID(cpl);
1285         struct filter_entry *f;
1286
1287         mtx_lock(&sc->tids.hftid_lock);
1288         f = lookup_hftid(sc, tid);
1289         KASSERT(f->tid == tid, ("%s: filter tid mismatch", __func__));
1290         KASSERT(f->pending, ("%s: hashfilter %p [%u] isn't pending.", __func__,
1291             f, tid));
1292         KASSERT(f->valid, ("%s: hashfilter %p [%u] isn't valid.", __func__, f,
1293             tid));
1294         f->pending = 0;
1295         if (cpl->status == 0) {
1296                 f->valid = 0;
1297                 free_filter_resources(f);
1298                 remove_hftid(sc, f);
1299                 remove_hf(sc, f);
1300                 release_tid(sc, tid, &sc->sge.ctrlq[0]);
1301                 if (f->locked == 0)
1302                         free(f, M_CXGBE);
1303         }
1304         cv_broadcast(&sc->tids.hftid_cv);
1305         mtx_unlock(&sc->tids.hftid_lock);
1306
1307         return (0);
1308 }
1309
1310 static int
1311 get_tcamfilter(struct adapter *sc, struct t4_filter *t)
1312 {
1313         int i, nfilters;
1314         struct filter_entry *f;
1315         u_int in_use;
1316 #ifdef INVARIANTS
1317         u_int tid_base;
1318 #endif
1319
1320         MPASS(!t->fs.hash);
1321
1322         if (separate_hpfilter_region(sc) && t->fs.prio) {
1323                 nfilters = sc->tids.nhpftids;
1324                 f = sc->tids.hpftid_tab;
1325                 in_use = sc->tids.hpftids_in_use;
1326 #ifdef INVARIANTS
1327                 tid_base = sc->tids.hpftid_base;
1328 #endif
1329         } else {
1330                 nfilters = sc->tids.nftids;
1331                 f = sc->tids.ftid_tab;
1332                 in_use = sc->tids.ftids_in_use;
1333 #ifdef INVARIANTS
1334                 tid_base = sc->tids.ftid_base;
1335 #endif
1336         }
1337
1338         if (in_use == 0 || f == NULL || t->idx >= nfilters) {
1339                 t->idx = 0xffffffff;
1340                 return (0);
1341         }
1342
1343         f += t->idx;
1344         mtx_lock(&sc->tids.ftid_lock);
1345         for (i = t->idx; i < nfilters; i++, f++) {
1346                 if (f->valid) {
1347                         MPASS(f->tid == tid_base + i);
1348                         t->idx = i;
1349                         t->l2tidx = f->l2te ? f->l2te->idx : 0;
1350                         t->smtidx = f->smt ? f->smt->idx : 0;
1351                         if (f->fs.hitcnts)
1352                                 t->hits = get_filter_hits(sc, f->tid);
1353                         else
1354                                 t->hits = UINT64_MAX;
1355                         t->fs = f->fs;
1356
1357                         goto done;
1358                 }
1359         }
1360         t->idx = 0xffffffff;
1361 done:
1362         mtx_unlock(&sc->tids.ftid_lock);
1363         return (0);
1364 }
1365
1366 static int
1367 get_hashfilter(struct adapter *sc, struct t4_filter *t)
1368 {
1369         struct tid_info *ti = &sc->tids;
1370         int tid;
1371         struct filter_entry *f;
1372         const int inv_tid = ti->ntids + ti->tid_base;
1373
1374         MPASS(t->fs.hash);
1375
1376         if (ti->tids_in_use == 0 || ti->hftid_hash_tid == NULL ||
1377             t->idx >= inv_tid) {
1378                 t->idx = 0xffffffff;
1379                 return (0);
1380         }
1381         if (t->idx < ti->tid_base)
1382                 t->idx = ti->tid_base;
1383
1384         mtx_lock(&ti->hftid_lock);
1385         for (tid = t->idx; tid < inv_tid; tid++) {
1386                 f = lookup_hftid(sc, tid);
1387                 if (f != NULL && f->valid) {
1388                         t->idx = tid;
1389                         t->l2tidx = f->l2te ? f->l2te->idx : 0;
1390                         t->smtidx = f->smt ? f->smt->idx : 0;
1391                         if (f->fs.hitcnts)
1392                                 t->hits = get_filter_hits(sc, tid);
1393                         else
1394                                 t->hits = UINT64_MAX;
1395                         t->fs = f->fs;
1396
1397                         goto done;
1398                 }
1399         }
1400         t->idx = 0xffffffff;
1401 done:
1402         mtx_unlock(&ti->hftid_lock);
1403         return (0);
1404 }
1405
1406 static void
1407 mk_act_open_req6(struct adapter *sc, struct filter_entry *f, int atid,
1408     uint64_t ftuple, struct cpl_act_open_req6 *cpl)
1409 {
1410         struct cpl_t5_act_open_req6 *cpl5 = (void *)cpl;
1411         struct cpl_t6_act_open_req6 *cpl6 = (void *)cpl;
1412
1413         /* Review changes to CPL after cpl_t6_act_open_req if this goes off. */
1414         MPASS(chip_id(sc) >= CHELSIO_T5 && chip_id(sc) <= CHELSIO_T6);
1415         MPASS(atid >= 0);
1416
1417         if (chip_id(sc) == CHELSIO_T5) {
1418                 INIT_TP_WR(cpl5, 0);
1419         } else {
1420                 INIT_TP_WR(cpl6, 0);
1421                 cpl6->rsvd2 = 0;
1422                 cpl6->opt3 = 0;
1423         }
1424
1425         OPCODE_TID(cpl) = htobe32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ6,
1426             V_TID_QID(sc->sge.fwq.abs_id) | V_TID_TID(atid) |
1427             V_TID_COOKIE(CPL_COOKIE_HASHFILTER)));
1428         cpl->local_port = htobe16(f->fs.val.dport);
1429         cpl->peer_port = htobe16(f->fs.val.sport);
1430         cpl->local_ip_hi = *(uint64_t *)(&f->fs.val.dip);
1431         cpl->local_ip_lo = *(((uint64_t *)&f->fs.val.dip) + 1);
1432         cpl->peer_ip_hi = *(uint64_t *)(&f->fs.val.sip);
1433         cpl->peer_ip_lo = *(((uint64_t *)&f->fs.val.sip) + 1);
1434         cpl->opt0 = htobe64(V_NAGLE(f->fs.newvlan == VLAN_REMOVE ||
1435             f->fs.newvlan == VLAN_REWRITE) | V_DELACK(f->fs.hitcnts) |
1436             V_L2T_IDX(f->l2te ? f->l2te->idx : 0) | V_TX_CHAN(f->fs.eport) |
1437             V_NO_CONG(f->fs.rpttid) |
1438             V_ULP_MODE(f->fs.nat_mode ? ULP_MODE_TCPDDP : ULP_MODE_NONE) |
1439             F_TCAM_BYPASS | F_NON_OFFLOAD);
1440
1441         cpl6->params = htobe64(V_FILTER_TUPLE(ftuple));
1442         cpl6->opt2 = htobe32(F_RSS_QUEUE_VALID | V_RSS_QUEUE(f->fs.iq) |
1443             V_TX_QUEUE(f->fs.nat_mode) | V_WND_SCALE_EN(f->fs.nat_flag_chk) |
1444             V_RX_FC_DISABLE(f->fs.nat_seq_chk ? 1 : 0) | F_T5_OPT_2_VALID |
1445             F_RX_CHANNEL | V_SACK_EN(f->fs.swapmac) |
1446             V_CONG_CNTRL((f->fs.action == FILTER_DROP) | (f->fs.dirsteer << 1)) |
1447             V_PACE(f->fs.maskhash | (f->fs.dirsteerhash << 1)));
1448 }
1449
1450 static void
1451 mk_act_open_req(struct adapter *sc, struct filter_entry *f, int atid,
1452     uint64_t ftuple, struct cpl_act_open_req *cpl)
1453 {
1454         struct cpl_t5_act_open_req *cpl5 = (void *)cpl;
1455         struct cpl_t6_act_open_req *cpl6 = (void *)cpl;
1456
1457         /* Review changes to CPL after cpl_t6_act_open_req if this goes off. */
1458         MPASS(chip_id(sc) >= CHELSIO_T5 && chip_id(sc) <= CHELSIO_T6);
1459         MPASS(atid >= 0);
1460
1461         if (chip_id(sc) == CHELSIO_T5) {
1462                 INIT_TP_WR(cpl5, 0);
1463         } else {
1464                 INIT_TP_WR(cpl6, 0);
1465                 cpl6->rsvd2 = 0;
1466                 cpl6->opt3 = 0;
1467         }
1468
1469         OPCODE_TID(cpl) = htobe32(MK_OPCODE_TID(CPL_ACT_OPEN_REQ,
1470             V_TID_QID(sc->sge.fwq.abs_id) | V_TID_TID(atid) |
1471             V_TID_COOKIE(CPL_COOKIE_HASHFILTER)));
1472         cpl->local_port = htobe16(f->fs.val.dport);
1473         cpl->peer_port = htobe16(f->fs.val.sport);
1474         cpl->local_ip = f->fs.val.dip[0] | f->fs.val.dip[1] << 8 |
1475             f->fs.val.dip[2] << 16 | f->fs.val.dip[3] << 24;
1476         cpl->peer_ip = f->fs.val.sip[0] | f->fs.val.sip[1] << 8 |
1477                 f->fs.val.sip[2] << 16 | f->fs.val.sip[3] << 24;
1478         cpl->opt0 = htobe64(V_NAGLE(f->fs.newvlan == VLAN_REMOVE ||
1479             f->fs.newvlan == VLAN_REWRITE) | V_DELACK(f->fs.hitcnts) |
1480             V_L2T_IDX(f->l2te ? f->l2te->idx : 0) | V_TX_CHAN(f->fs.eport) |
1481             V_NO_CONG(f->fs.rpttid) |
1482             V_ULP_MODE(f->fs.nat_mode ? ULP_MODE_TCPDDP : ULP_MODE_NONE) |
1483             F_TCAM_BYPASS | F_NON_OFFLOAD);
1484
1485         cpl6->params = htobe64(V_FILTER_TUPLE(ftuple));
1486         cpl6->opt2 = htobe32(F_RSS_QUEUE_VALID | V_RSS_QUEUE(f->fs.iq) |
1487             V_TX_QUEUE(f->fs.nat_mode) | V_WND_SCALE_EN(f->fs.nat_flag_chk) |
1488             V_RX_FC_DISABLE(f->fs.nat_seq_chk ? 1 : 0) | F_T5_OPT_2_VALID |
1489             F_RX_CHANNEL | V_SACK_EN(f->fs.swapmac) |
1490             V_CONG_CNTRL((f->fs.action == FILTER_DROP) | (f->fs.dirsteer << 1)) |
1491             V_PACE(f->fs.maskhash | (f->fs.dirsteerhash << 1)));
1492 }
1493
1494 static int
1495 act_open_cpl_len16(struct adapter *sc, int isipv6)
1496 {
1497         int idx;
1498         static const int sz_table[3][2] = {
1499                 {
1500                         howmany(sizeof (struct cpl_act_open_req), 16),
1501                         howmany(sizeof (struct cpl_act_open_req6), 16)
1502                 },
1503                 {
1504                         howmany(sizeof (struct cpl_t5_act_open_req), 16),
1505                         howmany(sizeof (struct cpl_t5_act_open_req6), 16)
1506                 },
1507                 {
1508                         howmany(sizeof (struct cpl_t6_act_open_req), 16),
1509                         howmany(sizeof (struct cpl_t6_act_open_req6), 16)
1510                 },
1511         };
1512
1513         MPASS(chip_id(sc) >= CHELSIO_T4);
1514         idx = min(chip_id(sc) - CHELSIO_T4, 2);
1515
1516         return (sz_table[idx][!!isipv6]);
1517 }
1518
1519 static int
1520 set_hashfilter(struct adapter *sc, struct t4_filter *t, uint64_t ftuple,
1521     struct l2t_entry *l2te, struct smt_entry *smt)
1522 {
1523         void *wr;
1524         struct wrq_cookie cookie;
1525         struct filter_entry *f;
1526         int rc, atid = -1;
1527         uint32_t hash;
1528
1529         MPASS(t->fs.hash);
1530         /* Already validated against fconf, iconf */
1531         MPASS((t->fs.val.pfvf_vld & t->fs.val.ovlan_vld) == 0);
1532         MPASS((t->fs.mask.pfvf_vld & t->fs.mask.ovlan_vld) == 0);
1533
1534         hash = hf_hashfn_4t(&t->fs);
1535
1536         mtx_lock(&sc->tids.hftid_lock);
1537         if (lookup_hf(sc, &t->fs, hash) != NULL) {
1538                 rc = EEXIST;
1539                 goto done;
1540         }
1541
1542         f = malloc(sizeof(*f), M_CXGBE, M_ZERO | M_NOWAIT);
1543         if (__predict_false(f == NULL)) {
1544                 rc = ENOMEM;
1545                 goto done;
1546         }
1547         f->fs = t->fs;
1548         f->l2te = l2te;
1549         f->smt = smt;
1550
1551         atid = alloc_atid(sc, f);
1552         if (__predict_false(atid) == -1) {
1553                 free(f, M_CXGBE);
1554                 rc = EAGAIN;
1555                 goto done;
1556         }
1557         MPASS(atid >= 0);
1558
1559         wr = start_wrq_wr(&sc->sge.ctrlq[0], act_open_cpl_len16(sc, f->fs.type),
1560             &cookie);
1561         if (wr == NULL) {
1562                 free_atid(sc, atid);
1563                 free(f, M_CXGBE);
1564                 rc = ENOMEM;
1565                 goto done;
1566         }
1567         if (f->fs.type)
1568                 mk_act_open_req6(sc, f, atid, ftuple, wr);
1569         else
1570                 mk_act_open_req(sc, f, atid, ftuple, wr);
1571
1572         f->locked = 1; /* ithread mustn't free f if ioctl is still around. */
1573         f->pending = 1;
1574         f->tid = -1;
1575         insert_hf(sc, f, hash);
1576         commit_wrq_wr(&sc->sge.ctrlq[0], wr, &cookie);
1577
1578         for (;;) {
1579                 MPASS(f->locked);
1580                 if (f->pending == 0) {
1581                         if (f->valid) {
1582                                 rc = 0;
1583                                 f->locked = 0;
1584                                 t->idx = f->tid;
1585                         } else {
1586                                 rc = f->tid;
1587                                 free(f, M_CXGBE);
1588                         }
1589                         break;
1590                 }
1591                 if (cv_wait_sig(&sc->tids.hftid_cv, &sc->tids.hftid_lock) != 0) {
1592                         f->locked = 0;
1593                         rc = EINPROGRESS;
1594                         break;
1595                 }
1596         }
1597 done:
1598         mtx_unlock(&sc->tids.hftid_lock);
1599         return (rc);
1600 }
1601
1602 /* SET_TCB_FIELD sent as a ULP command looks like this */
1603 #define LEN__SET_TCB_FIELD_ULP (sizeof(struct ulp_txpkt) + \
1604     sizeof(struct ulptx_idata) + sizeof(struct cpl_set_tcb_field_core))
1605
1606 static void *
1607 mk_set_tcb_field_ulp(struct ulp_txpkt *ulpmc, uint64_t word, uint64_t mask,
1608                 uint64_t val, uint32_t tid, uint32_t qid)
1609 {
1610         struct ulptx_idata *ulpsc;
1611         struct cpl_set_tcb_field_core *req;
1612
1613         ulpmc->cmd_dest = htonl(V_ULPTX_CMD(ULP_TX_PKT) | V_ULP_TXPKT_DEST(0));
1614         ulpmc->len = htobe32(howmany(LEN__SET_TCB_FIELD_ULP, 16));
1615
1616         ulpsc = (struct ulptx_idata *)(ulpmc + 1);
1617         ulpsc->cmd_more = htobe32(V_ULPTX_CMD(ULP_TX_SC_IMM));
1618         ulpsc->len = htobe32(sizeof(*req));
1619
1620         req = (struct cpl_set_tcb_field_core *)(ulpsc + 1);
1621         OPCODE_TID(req) = htobe32(MK_OPCODE_TID(CPL_SET_TCB_FIELD, tid));
1622         req->reply_ctrl = htobe16(V_NO_REPLY(1) | V_QUEUENO(qid));
1623         req->word_cookie = htobe16(V_WORD(word) | V_COOKIE(0));
1624         req->mask = htobe64(mask);
1625         req->val = htobe64(val);
1626
1627         ulpsc = (struct ulptx_idata *)(req + 1);
1628         if (LEN__SET_TCB_FIELD_ULP % 16) {
1629                 ulpsc->cmd_more = htobe32(V_ULPTX_CMD(ULP_TX_SC_NOOP));
1630                 ulpsc->len = htobe32(0);
1631                 return (ulpsc + 1);
1632         }
1633         return (ulpsc);
1634 }
1635
1636 /* ABORT_REQ sent as a ULP command looks like this */
1637 #define LEN__ABORT_REQ_ULP (sizeof(struct ulp_txpkt) + \
1638         sizeof(struct ulptx_idata) + sizeof(struct cpl_abort_req_core))
1639
1640 static void *
1641 mk_abort_req_ulp(struct ulp_txpkt *ulpmc, uint32_t tid)
1642 {
1643         struct ulptx_idata *ulpsc;
1644         struct cpl_abort_req_core *req;
1645
1646         ulpmc->cmd_dest = htonl(V_ULPTX_CMD(ULP_TX_PKT) | V_ULP_TXPKT_DEST(0));
1647         ulpmc->len = htobe32(howmany(LEN__ABORT_REQ_ULP, 16));
1648
1649         ulpsc = (struct ulptx_idata *)(ulpmc + 1);
1650         ulpsc->cmd_more = htobe32(V_ULPTX_CMD(ULP_TX_SC_IMM));
1651         ulpsc->len = htobe32(sizeof(*req));
1652
1653         req = (struct cpl_abort_req_core *)(ulpsc + 1);
1654         OPCODE_TID(req) = htobe32(MK_OPCODE_TID(CPL_ABORT_REQ, tid));
1655         req->rsvd0 = htonl(0);
1656         req->rsvd1 = 0;
1657         req->cmd = CPL_ABORT_NO_RST;
1658
1659         ulpsc = (struct ulptx_idata *)(req + 1);
1660         if (LEN__ABORT_REQ_ULP % 16) {
1661                 ulpsc->cmd_more = htobe32(V_ULPTX_CMD(ULP_TX_SC_NOOP));
1662                 ulpsc->len = htobe32(0);
1663                 return (ulpsc + 1);
1664         }
1665         return (ulpsc);
1666 }
1667
1668 /* ABORT_RPL sent as a ULP command looks like this */
1669 #define LEN__ABORT_RPL_ULP (sizeof(struct ulp_txpkt) + \
1670         sizeof(struct ulptx_idata) + sizeof(struct cpl_abort_rpl_core))
1671
1672 static void *
1673 mk_abort_rpl_ulp(struct ulp_txpkt *ulpmc, uint32_t tid)
1674 {
1675         struct ulptx_idata *ulpsc;
1676         struct cpl_abort_rpl_core *rpl;
1677
1678         ulpmc->cmd_dest = htonl(V_ULPTX_CMD(ULP_TX_PKT) | V_ULP_TXPKT_DEST(0));
1679         ulpmc->len = htobe32(howmany(LEN__ABORT_RPL_ULP, 16));
1680
1681         ulpsc = (struct ulptx_idata *)(ulpmc + 1);
1682         ulpsc->cmd_more = htobe32(V_ULPTX_CMD(ULP_TX_SC_IMM));
1683         ulpsc->len = htobe32(sizeof(*rpl));
1684
1685         rpl = (struct cpl_abort_rpl_core *)(ulpsc + 1);
1686         OPCODE_TID(rpl) = htobe32(MK_OPCODE_TID(CPL_ABORT_RPL, tid));
1687         rpl->rsvd0 = htonl(0);
1688         rpl->rsvd1 = 0;
1689         rpl->cmd = CPL_ABORT_NO_RST;
1690
1691         ulpsc = (struct ulptx_idata *)(rpl + 1);
1692         if (LEN__ABORT_RPL_ULP % 16) {
1693                 ulpsc->cmd_more = htobe32(V_ULPTX_CMD(ULP_TX_SC_NOOP));
1694                 ulpsc->len = htobe32(0);
1695                 return (ulpsc + 1);
1696         }
1697         return (ulpsc);
1698 }
1699
1700 static inline int
1701 del_hashfilter_wrlen(void)
1702 {
1703
1704         return (sizeof(struct work_request_hdr) +
1705             roundup2(LEN__SET_TCB_FIELD_ULP, 16) +
1706             roundup2(LEN__ABORT_REQ_ULP, 16) +
1707             roundup2(LEN__ABORT_RPL_ULP, 16));
1708 }
1709
1710 static void
1711 mk_del_hashfilter_wr(int tid, struct work_request_hdr *wrh, int wrlen, int qid)
1712 {
1713         struct ulp_txpkt *ulpmc;
1714
1715         INIT_ULPTX_WRH(wrh, wrlen, 0, 0);
1716         ulpmc = (struct ulp_txpkt *)(wrh + 1);
1717         ulpmc = mk_set_tcb_field_ulp(ulpmc, W_TCB_RSS_INFO,
1718             V_TCB_RSS_INFO(M_TCB_RSS_INFO), V_TCB_RSS_INFO(qid), tid, 0);
1719         ulpmc = mk_abort_req_ulp(ulpmc, tid);
1720         ulpmc = mk_abort_rpl_ulp(ulpmc, tid);
1721 }
1722
1723 static int
1724 del_hashfilter(struct adapter *sc, struct t4_filter *t)
1725 {
1726         struct tid_info *ti = &sc->tids;
1727         void *wr;
1728         struct filter_entry *f;
1729         struct wrq_cookie cookie;
1730         int rc;
1731         const int wrlen = del_hashfilter_wrlen();
1732         const int inv_tid = ti->ntids + ti->tid_base;
1733
1734         MPASS(sc->tids.hftid_hash_4t != NULL);
1735         MPASS(sc->tids.ntids > 0);
1736
1737         if (t->idx < sc->tids.tid_base || t->idx >= inv_tid)
1738                 return (EINVAL);
1739
1740         mtx_lock(&ti->hftid_lock);
1741         f = lookup_hftid(sc, t->idx);
1742         if (f == NULL || f->valid == 0) {
1743                 rc = EINVAL;
1744                 goto done;
1745         }
1746         MPASS(f->tid == t->idx);
1747         if (f->locked) {
1748                 rc = EPERM;
1749                 goto done;
1750         }
1751         if (f->pending) {
1752                 rc = EBUSY;
1753                 goto done;
1754         }
1755         wr = start_wrq_wr(&sc->sge.ctrlq[0], howmany(wrlen, 16), &cookie);
1756         if (wr == NULL) {
1757                 rc = ENOMEM;
1758                 goto done;
1759         }
1760
1761         mk_del_hashfilter_wr(t->idx, wr, wrlen, sc->sge.fwq.abs_id);
1762         f->locked = 1;
1763         f->pending = 1;
1764         commit_wrq_wr(&sc->sge.ctrlq[0], wr, &cookie);
1765         t->fs = f->fs;  /* extra info for the caller */
1766
1767         for (;;) {
1768                 MPASS(f->locked);
1769                 if (f->pending == 0) {
1770                         if (f->valid) {
1771                                 f->locked = 0;
1772                                 rc = EIO;
1773                         } else {
1774                                 rc = 0;
1775                                 free(f, M_CXGBE);
1776                         }
1777                         break;
1778                 }
1779                 if (cv_wait_sig(&ti->hftid_cv, &ti->hftid_lock) != 0) {
1780                         f->locked = 0;
1781                         rc = EINPROGRESS;
1782                         break;
1783                 }
1784         }
1785 done:
1786         mtx_unlock(&ti->hftid_lock);
1787         return (rc);
1788 }
1789
1790 #define WORD_MASK       0xffffffff
1791 static void
1792 set_nat_params(struct adapter *sc, struct filter_entry *f, const bool dip,
1793     const bool sip, const bool dp, const bool sp)
1794 {
1795
1796         if (dip) {
1797                 if (f->fs.type) {
1798                         set_tcb_field(sc, f->tid, W_TCB_SND_UNA_RAW, WORD_MASK,
1799                             f->fs.nat_dip[15] | f->fs.nat_dip[14] << 8 |
1800                             f->fs.nat_dip[13] << 16 | f->fs.nat_dip[12] << 24, 1);
1801
1802                         set_tcb_field(sc, f->tid,
1803                             W_TCB_SND_UNA_RAW + 1, WORD_MASK,
1804                             f->fs.nat_dip[11] | f->fs.nat_dip[10] << 8 |
1805                             f->fs.nat_dip[9] << 16 | f->fs.nat_dip[8] << 24, 1);
1806
1807                         set_tcb_field(sc, f->tid,
1808                             W_TCB_SND_UNA_RAW + 2, WORD_MASK,
1809                             f->fs.nat_dip[7] | f->fs.nat_dip[6] << 8 |
1810                             f->fs.nat_dip[5] << 16 | f->fs.nat_dip[4] << 24, 1);
1811
1812                         set_tcb_field(sc, f->tid,
1813                             W_TCB_SND_UNA_RAW + 3, WORD_MASK,
1814                             f->fs.nat_dip[3] | f->fs.nat_dip[2] << 8 |
1815                             f->fs.nat_dip[1] << 16 | f->fs.nat_dip[0] << 24, 1);
1816                 } else {
1817                         set_tcb_field(sc, f->tid,
1818                             W_TCB_RX_FRAG3_LEN_RAW, WORD_MASK,
1819                             f->fs.nat_dip[3] | f->fs.nat_dip[2] << 8 |
1820                             f->fs.nat_dip[1] << 16 | f->fs.nat_dip[0] << 24, 1);
1821                 }
1822         }
1823
1824         if (sip) {
1825                 if (f->fs.type) {
1826                         set_tcb_field(sc, f->tid,
1827                             W_TCB_RX_FRAG2_PTR_RAW, WORD_MASK,
1828                             f->fs.nat_sip[15] | f->fs.nat_sip[14] << 8 |
1829                             f->fs.nat_sip[13] << 16 | f->fs.nat_sip[12] << 24, 1);
1830
1831                         set_tcb_field(sc, f->tid,
1832                             W_TCB_RX_FRAG2_PTR_RAW + 1, WORD_MASK,
1833                             f->fs.nat_sip[11] | f->fs.nat_sip[10] << 8 |
1834                             f->fs.nat_sip[9] << 16 | f->fs.nat_sip[8] << 24, 1);
1835
1836                         set_tcb_field(sc, f->tid,
1837                             W_TCB_RX_FRAG2_PTR_RAW + 2, WORD_MASK,
1838                             f->fs.nat_sip[7] | f->fs.nat_sip[6] << 8 |
1839                             f->fs.nat_sip[5] << 16 | f->fs.nat_sip[4] << 24, 1);
1840
1841                         set_tcb_field(sc, f->tid,
1842                             W_TCB_RX_FRAG2_PTR_RAW + 3, WORD_MASK,
1843                             f->fs.nat_sip[3] | f->fs.nat_sip[2] << 8 |
1844                             f->fs.nat_sip[1] << 16 | f->fs.nat_sip[0] << 24, 1);
1845
1846                 } else {
1847                         set_tcb_field(sc, f->tid,
1848                             W_TCB_RX_FRAG3_START_IDX_OFFSET_RAW, WORD_MASK,
1849                             f->fs.nat_sip[3] | f->fs.nat_sip[2] << 8 |
1850                             f->fs.nat_sip[1] << 16 | f->fs.nat_sip[0] << 24, 1);
1851                 }
1852         }
1853
1854         set_tcb_field(sc, f->tid, W_TCB_PDU_HDR_LEN, WORD_MASK,
1855             (dp ? f->fs.nat_dport : 0) | (sp ? f->fs.nat_sport << 16 : 0), 1);
1856 }
1857
1858 /*
1859  * Returns EINPROGRESS to indicate that at least one TCB update was sent and the
1860  * last of the series of updates requested a reply.  The reply informs the
1861  * driver that the filter is fully setup.
1862  */
1863 static int
1864 configure_hashfilter_tcb(struct adapter *sc, struct filter_entry *f)
1865 {
1866         int updated = 0;
1867
1868         MPASS(f->tid < sc->tids.ntids);
1869         MPASS(f->fs.hash);
1870         MPASS(f->pending);
1871         MPASS(f->valid == 0);
1872
1873         if (f->fs.newdmac) {
1874                 set_tcb_tflag(sc, f->tid, S_TF_CCTRL_ECE, 1, 1);
1875                 updated++;
1876         }
1877
1878         if (f->fs.newvlan == VLAN_INSERT || f->fs.newvlan == VLAN_REWRITE) {
1879                 set_tcb_tflag(sc, f->tid, S_TF_CCTRL_RFR, 1, 1);
1880                 updated++;
1881         }
1882
1883         if (f->fs.newsmac) {
1884                 MPASS(f->smt != NULL);
1885                 set_tcb_tflag(sc, f->tid, S_TF_CCTRL_CWR, 1, 1);
1886                 set_tcb_field(sc, f->tid, W_TCB_SMAC_SEL,
1887                     V_TCB_SMAC_SEL(M_TCB_SMAC_SEL), V_TCB_SMAC_SEL(f->smt->idx),
1888                     1);
1889                 updated++;
1890         }
1891
1892         switch(f->fs.nat_mode) {
1893         case NAT_MODE_NONE:
1894                 break;
1895         case NAT_MODE_DIP:
1896                 set_nat_params(sc, f, true, false, false, false);
1897                 updated++;
1898                 break;
1899         case NAT_MODE_DIP_DP:
1900                 set_nat_params(sc, f, true, false, true, false);
1901                 updated++;
1902                 break;
1903         case NAT_MODE_DIP_DP_SIP:
1904                 set_nat_params(sc, f, true, true, true, false);
1905                 updated++;
1906                 break;
1907         case NAT_MODE_DIP_DP_SP:
1908                 set_nat_params(sc, f, true, false, true, true);
1909                 updated++;
1910                 break;
1911         case NAT_MODE_SIP_SP:
1912                 set_nat_params(sc, f, false, true, false, true);
1913                 updated++;
1914                 break;
1915         case NAT_MODE_DIP_SIP_SP:
1916                 set_nat_params(sc, f, true, true, false, true);
1917                 updated++;
1918                 break;
1919         case NAT_MODE_ALL:
1920                 set_nat_params(sc, f, true, true, true, true);
1921                 updated++;
1922                 break;
1923         default:
1924                 MPASS(0);       /* should have been validated earlier */
1925                 break;
1926
1927         }
1928
1929         if (f->fs.nat_seq_chk) {
1930                 set_tcb_field(sc, f->tid, W_TCB_RCV_NXT,
1931                     V_TCB_RCV_NXT(M_TCB_RCV_NXT),
1932                     V_TCB_RCV_NXT(f->fs.nat_seq_chk), 1);
1933                 updated++;
1934         }
1935
1936         if (is_t5(sc) && f->fs.action == FILTER_DROP) {
1937                 /*
1938                  * Migrating = 1, Non-offload = 0 to get a T5 hashfilter to drop.
1939                  */
1940                 set_tcb_field(sc, f->tid, W_TCB_T_FLAGS, V_TF_NON_OFFLOAD(1) |
1941                     V_TF_MIGRATING(1), V_TF_MIGRATING(1), 1);
1942                 updated++;
1943         }
1944
1945         /*
1946          * Enable switching after all secondary resources (L2T entry, SMT entry,
1947          * etc.) are setup so that any switched packet will use correct
1948          * values.
1949          */
1950         if (f->fs.action == FILTER_SWITCH) {
1951                 set_tcb_tflag(sc, f->tid, S_TF_CCTRL_ECN, 1, 1);
1952                 updated++;
1953         }
1954
1955         if (f->fs.hitcnts || updated > 0) {
1956                 set_tcb_field(sc, f->tid, W_TCB_TIMESTAMP,
1957                     V_TCB_TIMESTAMP(M_TCB_TIMESTAMP) |
1958                     V_TCB_T_RTT_TS_RECENT_AGE(M_TCB_T_RTT_TS_RECENT_AGE),
1959                     V_TCB_TIMESTAMP(0ULL) | V_TCB_T_RTT_TS_RECENT_AGE(0ULL), 0);
1960                 return (EINPROGRESS);
1961         }
1962
1963         return (0);
1964 }