sys/dev/qlxgbe/ql_isr.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   3  *
   4  * Copyright (c) 2013-2016 Qlogic Corporation
   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  *
  11  *  1. Redistributions of source code must retain the above copyright
  12  *     notice, this list of conditions and the following disclaimer.
  13  *  2. Redistributions in binary form must reproduce the above copyright
  14  *     notice, this list of conditions and the following disclaimer in the
  15  *     documentation and/or other materials provided with the distribution.
  16  *
  17  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  18  *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  21  *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  22  *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  23  *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  24  *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  25  *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  26  *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  27  *  POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 /*
  31  * File: ql_isr.c
  32  * Author : David C Somayajulu, Qlogic Corporation, Aliso Viejo, CA 92656.
  33  */
  34
  35 #include <sys/cdefs.h>
  36 __FBSDID("$FreeBSD$");
  37
  38
  39 #include "ql_os.h"
  40 #include "ql_hw.h"
  41 #include "ql_def.h"
  42 #include "ql_inline.h"
  43 #include "ql_ver.h"
  44 #include "ql_glbl.h"
  45 #include "ql_dbg.h"
  46
  47 static void qla_replenish_normal_rx(qla_host_t *ha, qla_sds_t *sdsp,
  48                 uint32_t r_idx);
  49
  50 static void
  51 qla_rcv_error(qla_host_t *ha)
  52 {
  53         ha->stop_rcv = 1;
  54         ha->qla_initiate_recovery = 1;
  55 }
  56
  57
  58 /*
  59  * Name: qla_rx_intr
  60  * Function: Handles normal ethernet frames received
  61  */
  62 static void
  63 qla_rx_intr(qla_host_t *ha, qla_sgl_rcv_t *sgc, uint32_t sds_idx)
  64 {
  65         qla_rx_buf_t            *rxb;
  66         struct mbuf             *mp = NULL, *mpf = NULL, *mpl = NULL;
  67         struct ifnet            *ifp = ha->ifp;
  68         qla_sds_t               *sdsp;
  69         struct ether_vlan_header *eh;
  70         uint32_t                i, rem_len = 0;
  71         uint32_t                r_idx = 0;
  72         qla_rx_ring_t           *rx_ring;
  73         struct lro_ctrl         *lro;
  74
  75         lro = &ha->hw.sds[sds_idx].lro;
  76
  77         if (ha->hw.num_rds_rings > 1)
  78                 r_idx = sds_idx;
  79
  80         ha->hw.rds[r_idx].count++;
  81
  82         sdsp = &ha->hw.sds[sds_idx];
  83         rx_ring = &ha->rx_ring[r_idx];
  84
  85         for (i = 0; i < sgc->num_handles; i++) {
  86                 rxb = &rx_ring->rx_buf[sgc->handle[i] & 0x7FFF];
  87
  88                 QL_ASSERT(ha, (rxb != NULL),
  89                         ("%s: [sds_idx]=[%d] rxb != NULL\n", __func__,\
  90                         sds_idx));
  91
  92                 if ((rxb == NULL) || QL_ERR_INJECT(ha, INJCT_RX_RXB_INVAL)) {
  93                         /* log the error */
  94                         device_printf(ha->pci_dev,
  95                                 "%s invalid rxb[%d, %d, 0x%04x]\n",
  96                                 __func__, sds_idx, i, sgc->handle[i]);
  97                         qla_rcv_error(ha);
  98                         return;
  99                 }
 100
 101                 mp = rxb->m_head;
 102                 if (i == 0)
 103                         mpf = mp;
 104
 105                 QL_ASSERT(ha, (mp != NULL),
 106                         ("%s: [sds_idx]=[%d] mp != NULL\n", __func__,\
 107                         sds_idx));
 108
 109                 bus_dmamap_sync(ha->rx_tag, rxb->map, BUS_DMASYNC_POSTREAD);
 110
 111                 rxb->m_head = NULL;
 112                 rxb->next = sdsp->rxb_free;
 113                 sdsp->rxb_free = rxb;
 114                 sdsp->rx_free++;
 115
 116                 if ((mp == NULL) || QL_ERR_INJECT(ha, INJCT_RX_MP_NULL)) {
 117                         /* log the error */
 118                         device_printf(ha->pci_dev,
 119                                 "%s mp  == NULL [%d, %d, 0x%04x]\n",
 120                                 __func__, sds_idx, i, sgc->handle[i]);
 121                         qla_rcv_error(ha);
 122                         return;
 123                 }
 124
 125                 if (i == 0) {
 126                         mpl = mpf = mp;
 127                         mp->m_flags |= M_PKTHDR;
 128                         mp->m_pkthdr.len = sgc->pkt_length;
 129                         mp->m_pkthdr.rcvif = ifp;
 130                         rem_len = mp->m_pkthdr.len;
 131                 } else {
 132                         mp->m_flags &= ~M_PKTHDR;
 133                         mpl->m_next = mp;
 134                         mpl = mp;
 135                         rem_len = rem_len - mp->m_len;
 136                 }
 137         }
 138
 139         mpl->m_len = rem_len;
 140
 141         eh = mtod(mpf, struct ether_vlan_header *);
 142
 143         if (eh->evl_encap_proto == htons(ETHERTYPE_VLAN)) {
 144                 uint32_t *data = (uint32_t *)eh;
 145
 146                 mpf->m_pkthdr.ether_vtag = ntohs(eh->evl_tag);
 147                 mpf->m_flags |= M_VLANTAG;
 148
 149                 *(data + 3) = *(data + 2);
 150                 *(data + 2) = *(data + 1);
 151                 *(data + 1) = *data;
 152
 153                 m_adj(mpf, ETHER_VLAN_ENCAP_LEN);
 154         }
 155
 156         if (sgc->chksum_status == Q8_STAT_DESC_STATUS_CHKSUM_OK) {
 157                 mpf->m_pkthdr.csum_flags = CSUM_IP_CHECKED | CSUM_IP_VALID |
 158                         CSUM_DATA_VALID | CSUM_PSEUDO_HDR;
 159                 mpf->m_pkthdr.csum_data = 0xFFFF;
 160         } else {
 161                 mpf->m_pkthdr.csum_flags = 0;
 162         }
 163
 164         if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1);
 165
 166         mpf->m_pkthdr.flowid = sgc->rss_hash;
 167
 168 #if __FreeBSD_version >= 1100000
 169         M_HASHTYPE_SET(mpf, M_HASHTYPE_OPAQUE_HASH);
 170 #else
 171 #if (__FreeBSD_version >= 903511 && __FreeBSD_version < 1100000)
 172         M_HASHTYPE_SET(mpf, M_HASHTYPE_OPAQUE);
 173 #else
 174         M_HASHTYPE_SET(mpf, M_HASHTYPE_NONE);
 175 #endif
 176 #endif /* #if __FreeBSD_version >= 1100000 */
 177
 178         if (ha->hw.enable_soft_lro) {
 179
 180 #if (__FreeBSD_version >= 1100101)
 181
 182                 tcp_lro_queue_mbuf(lro, mpf);
 183
 184 #else
 185                 if (tcp_lro_rx(lro, mpf, 0))
 186                         (*ifp->if_input)(ifp, mpf);
 187
 188 #endif /* #if (__FreeBSD_version >= 1100101) */
 189
 190
 191         } else {
 192                 (*ifp->if_input)(ifp, mpf);
 193         }
 194
 195         if (sdsp->rx_free > ha->std_replenish)
 196                 qla_replenish_normal_rx(ha, sdsp, r_idx);
 197
 198         return;
 199 }
 200
 201 #define QLA_TCP_HDR_SIZE        20
 202 #define QLA_TCP_TS_OPTION_SIZE  12
 203
 204 /*
 205  * Name: qla_lro_intr
 206  * Function: Handles normal ethernet frames received
 207  */
 208 static int
 209 qla_lro_intr(qla_host_t *ha, qla_sgl_lro_t *sgc, uint32_t sds_idx)
 210 {
 211         qla_rx_buf_t *rxb;
 212         struct mbuf *mp = NULL, *mpf = NULL, *mpl = NULL;
 213         struct ifnet *ifp = ha->ifp;
 214         qla_sds_t *sdsp;
 215         struct ether_vlan_header *eh;
 216         uint32_t i, rem_len = 0, pkt_length, iplen;
 217         struct tcphdr *th;
 218         struct ip *ip = NULL;
 219         struct ip6_hdr *ip6 = NULL;
 220         uint16_t etype;
 221         uint32_t r_idx = 0;
 222         qla_rx_ring_t *rx_ring;
 223
 224         if (ha->hw.num_rds_rings > 1)
 225                 r_idx = sds_idx;
 226
 227         ha->hw.rds[r_idx].count++;
 228
 229         rx_ring = &ha->rx_ring[r_idx];
 230
 231         ha->hw.rds[r_idx].lro_pkt_count++;
 232
 233         sdsp = &ha->hw.sds[sds_idx];
 234
 235         pkt_length = sgc->payload_length + sgc->l4_offset;
 236
 237         if (sgc->flags & Q8_LRO_COMP_TS) {
 238                 pkt_length += QLA_TCP_HDR_SIZE + QLA_TCP_TS_OPTION_SIZE;
 239         } else {
 240                 pkt_length += QLA_TCP_HDR_SIZE;
 241         }
 242         ha->hw.rds[r_idx].lro_bytes += pkt_length;
 243
 244         for (i = 0; i < sgc->num_handles; i++) {
 245                 rxb = &rx_ring->rx_buf[sgc->handle[i] & 0x7FFF];
 246
 247                 QL_ASSERT(ha, (rxb != NULL),
 248                         ("%s: [sds_idx]=[%d] rxb != NULL\n", __func__,\
 249                         sds_idx));
 250
 251                 if ((rxb == NULL) || QL_ERR_INJECT(ha, INJCT_LRO_RXB_INVAL)) {
 252                         /* log the error */
 253                         device_printf(ha->pci_dev,
 254                                 "%s invalid rxb[%d, %d, 0x%04x]\n",
 255                                 __func__, sds_idx, i, sgc->handle[i]);
 256                         qla_rcv_error(ha);
 257                         return (0);
 258                 }
 259
 260                 mp = rxb->m_head;
 261                 if (i == 0)
 262                         mpf = mp;
 263
 264                 QL_ASSERT(ha, (mp != NULL),
 265                         ("%s: [sds_idx]=[%d] mp != NULL\n", __func__,\
 266                         sds_idx));
 267
 268                 bus_dmamap_sync(ha->rx_tag, rxb->map, BUS_DMASYNC_POSTREAD);
 269
 270                 rxb->m_head = NULL;
 271                 rxb->next = sdsp->rxb_free;
 272                 sdsp->rxb_free = rxb;
 273                 sdsp->rx_free++;
 274
 275                 if ((mp == NULL) || QL_ERR_INJECT(ha, INJCT_LRO_MP_NULL)) {
 276                         /* log the error */
 277                         device_printf(ha->pci_dev,
 278                                 "%s mp  == NULL [%d, %d, 0x%04x]\n",
 279                                 __func__, sds_idx, i, sgc->handle[i]);
 280                         qla_rcv_error(ha);
 281                         return (0);
 282                 }
 283
 284                 if (i == 0) {
 285                         mpl = mpf = mp;
 286                         mp->m_flags |= M_PKTHDR;
 287                         mp->m_pkthdr.len = pkt_length;
 288                         mp->m_pkthdr.rcvif = ifp;
 289                         rem_len = mp->m_pkthdr.len;
 290                 } else {
 291                         mp->m_flags &= ~M_PKTHDR;
 292                         mpl->m_next = mp;
 293                         mpl = mp;
 294                         rem_len = rem_len - mp->m_len;
 295                 }
 296         }
 297
 298         mpl->m_len = rem_len;
 299
 300         th = (struct tcphdr *)(mpf->m_data + sgc->l4_offset);
 301
 302         if (sgc->flags & Q8_LRO_COMP_PUSH_BIT)
 303                 th->th_flags |= TH_PUSH;
 304
 305         m_adj(mpf, sgc->l2_offset);
 306
 307         eh = mtod(mpf, struct ether_vlan_header *);
 308
 309         if (eh->evl_encap_proto == htons(ETHERTYPE_VLAN)) {
 310                 uint32_t *data = (uint32_t *)eh;
 311
 312                 mpf->m_pkthdr.ether_vtag = ntohs(eh->evl_tag);
 313                 mpf->m_flags |= M_VLANTAG;
 314
 315                 *(data + 3) = *(data + 2);
 316                 *(data + 2) = *(data + 1);
 317                 *(data + 1) = *data;
 318
 319                 m_adj(mpf, ETHER_VLAN_ENCAP_LEN);
 320
 321                 etype = ntohs(eh->evl_proto);
 322         } else {
 323                 etype = ntohs(eh->evl_encap_proto);
 324         }
 325
 326         if (etype == ETHERTYPE_IP) {
 327                 ip = (struct ip *)(mpf->m_data + ETHER_HDR_LEN);
 328
 329                 iplen = (ip->ip_hl << 2) + (th->th_off << 2) +
 330                                 sgc->payload_length;
 331
 332                 ip->ip_len = htons(iplen);
 333
 334                 ha->ipv4_lro++;
 335
 336                 M_HASHTYPE_SET(mpf, M_HASHTYPE_RSS_TCP_IPV4);
 337
 338         } else if (etype == ETHERTYPE_IPV6) {
 339                 ip6 = (struct ip6_hdr *)(mpf->m_data + ETHER_HDR_LEN);
 340
 341                 iplen = (th->th_off << 2) + sgc->payload_length;
 342
 343                 ip6->ip6_plen = htons(iplen);
 344
 345                 ha->ipv6_lro++;
 346
 347                 M_HASHTYPE_SET(mpf, M_HASHTYPE_RSS_TCP_IPV6);
 348
 349         } else {
 350                 m_freem(mpf);
 351
 352                 if (sdsp->rx_free > ha->std_replenish)
 353                         qla_replenish_normal_rx(ha, sdsp, r_idx);
 354                 return 0;
 355         }
 356
 357         mpf->m_pkthdr.csum_flags = CSUM_IP_CHECKED | CSUM_IP_VALID |
 358                                         CSUM_DATA_VALID | CSUM_PSEUDO_HDR;
 359         mpf->m_pkthdr.csum_data = 0xFFFF;
 360
 361         mpf->m_pkthdr.flowid = sgc->rss_hash;
 362
 363         if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1);
 364
 365         (*ifp->if_input)(ifp, mpf);
 366
 367         if (sdsp->rx_free > ha->std_replenish)
 368                 qla_replenish_normal_rx(ha, sdsp, r_idx);
 369
 370         return (0);
 371 }
 372
 373 static int
 374 qla_rcv_cont_sds(qla_host_t *ha, uint32_t sds_idx, uint32_t comp_idx,
 375         uint32_t dcount, uint16_t *handle, uint16_t *nhandles)
 376 {
 377         uint32_t i;
 378         uint16_t num_handles;
 379         q80_stat_desc_t *sdesc;
 380         uint32_t opcode;
 381
 382         *nhandles = 0;
 383         dcount--;
 384
 385         for (i = 0; i < dcount; i++) {
 386                 comp_idx = (comp_idx + 1) & (NUM_STATUS_DESCRIPTORS-1);
 387                 sdesc = (q80_stat_desc_t *)
 388                                 &ha->hw.sds[sds_idx].sds_ring_base[comp_idx];
 389
 390                 opcode = Q8_STAT_DESC_OPCODE((sdesc->data[1]));
 391
 392                 if (!opcode) {
 393                         device_printf(ha->pci_dev, "%s: opcode=0 %p %p\n",
 394                                 __func__, (void *)sdesc->data[0],
 395                                 (void *)sdesc->data[1]);
 396                         return -1;
 397                 }
 398
 399                 num_handles = Q8_SGL_STAT_DESC_NUM_HANDLES((sdesc->data[1]));
 400                 if (!num_handles) {
 401                         device_printf(ha->pci_dev, "%s: opcode=0 %p %p\n",
 402                                 __func__, (void *)sdesc->data[0],
 403                                 (void *)sdesc->data[1]);
 404                         return -1;
 405                 }
 406
 407                 if (QL_ERR_INJECT(ha, INJCT_NUM_HNDLE_INVALID))
 408                         num_handles = -1;
 409
 410                 switch (num_handles) {
 411
 412                 case 1:
 413                         *handle++ = Q8_SGL_STAT_DESC_HANDLE1((sdesc->data[0]));
 414                         break;
 415
 416                 case 2:
 417                         *handle++ = Q8_SGL_STAT_DESC_HANDLE1((sdesc->data[0]));
 418                         *handle++ = Q8_SGL_STAT_DESC_HANDLE2((sdesc->data[0]));
 419                         break;
 420
 421                 case 3:
 422                         *handle++ = Q8_SGL_STAT_DESC_HANDLE1((sdesc->data[0]));
 423                         *handle++ = Q8_SGL_STAT_DESC_HANDLE2((sdesc->data[0]));
 424                         *handle++ = Q8_SGL_STAT_DESC_HANDLE3((sdesc->data[0]));
 425                         break;
 426
 427                 case 4:
 428                         *handle++ = Q8_SGL_STAT_DESC_HANDLE1((sdesc->data[0]));
 429                         *handle++ = Q8_SGL_STAT_DESC_HANDLE2((sdesc->data[0]));
 430                         *handle++ = Q8_SGL_STAT_DESC_HANDLE3((sdesc->data[0]));
 431                         *handle++ = Q8_SGL_STAT_DESC_HANDLE4((sdesc->data[0]));
 432                         break;
 433
 434                 case 5:
 435                         *handle++ = Q8_SGL_STAT_DESC_HANDLE1((sdesc->data[0]));
 436                         *handle++ = Q8_SGL_STAT_DESC_HANDLE2((sdesc->data[0]));
 437                         *handle++ = Q8_SGL_STAT_DESC_HANDLE3((sdesc->data[0]));
 438                         *handle++ = Q8_SGL_STAT_DESC_HANDLE4((sdesc->data[0]));
 439                         *handle++ = Q8_SGL_STAT_DESC_HANDLE5((sdesc->data[1]));
 440                         break;
 441
 442                 case 6:
 443                         *handle++ = Q8_SGL_STAT_DESC_HANDLE1((sdesc->data[0]));
 444                         *handle++ = Q8_SGL_STAT_DESC_HANDLE2((sdesc->data[0]));
 445                         *handle++ = Q8_SGL_STAT_DESC_HANDLE3((sdesc->data[0]));
 446                         *handle++ = Q8_SGL_STAT_DESC_HANDLE4((sdesc->data[0]));
 447                         *handle++ = Q8_SGL_STAT_DESC_HANDLE5((sdesc->data[1]));
 448                         *handle++ = Q8_SGL_STAT_DESC_HANDLE6((sdesc->data[1]));
 449                         break;
 450
 451                 case 7:
 452                         *handle++ = Q8_SGL_STAT_DESC_HANDLE1((sdesc->data[0]));
 453                         *handle++ = Q8_SGL_STAT_DESC_HANDLE2((sdesc->data[0]));
 454                         *handle++ = Q8_SGL_STAT_DESC_HANDLE3((sdesc->data[0]));
 455                         *handle++ = Q8_SGL_STAT_DESC_HANDLE4((sdesc->data[0]));
 456                         *handle++ = Q8_SGL_STAT_DESC_HANDLE5((sdesc->data[1]));
 457                         *handle++ = Q8_SGL_STAT_DESC_HANDLE6((sdesc->data[1]));
 458                         *handle++ = Q8_SGL_STAT_DESC_HANDLE7((sdesc->data[1]));
 459                         break;
 460
 461                 default:
 462                         device_printf(ha->pci_dev,
 463                                 "%s: invalid num handles %p %p\n",
 464                                 __func__, (void *)sdesc->data[0],
 465                                 (void *)sdesc->data[1]);
 466
 467                         QL_ASSERT(ha, (0),\
 468                         ("%s: %s [nh, sds, d0, d1]=[%d, %d, %p, %p]\n",
 469                         __func__, "invalid num handles", sds_idx, num_handles,
 470                         (void *)sdesc->data[0],(void *)sdesc->data[1]));
 471
 472                         qla_rcv_error(ha);
 473                         return 0;
 474                 }
 475                 *nhandles = *nhandles + num_handles;
 476         }
 477         return 0;
 478 }
 479
 480 /*
 481  * Name: ql_rcv_isr
 482  * Function: Main Interrupt Service Routine
 483  */
 484 uint32_t
 485 ql_rcv_isr(qla_host_t *ha, uint32_t sds_idx, uint32_t count)
 486 {
 487         device_t dev;
 488         qla_hw_t *hw;
 489         uint32_t comp_idx, c_idx = 0, desc_count = 0, opcode;
 490         volatile q80_stat_desc_t *sdesc, *sdesc0 = NULL;
 491         uint32_t ret = 0;
 492         qla_sgl_comp_t sgc;
 493         uint16_t nhandles;
 494         uint32_t sds_replenish_threshold = 0;
 495         uint32_t r_idx = 0;
 496         qla_sds_t *sdsp;
 497
 498         dev = ha->pci_dev;
 499         hw = &ha->hw;
 500
 501         hw->sds[sds_idx].rcv_active = 1;
 502         if (ha->stop_rcv) {
 503                 hw->sds[sds_idx].rcv_active = 0;
 504                 return 0;
 505         }
 506
 507         QL_DPRINT2(ha, (dev, "%s: [%d]enter\n", __func__, sds_idx));
 508
 509         /*
 510          * receive interrupts
 511          */
 512         comp_idx = hw->sds[sds_idx].sdsr_next;
 513
 514         while (count-- && !ha->stop_rcv) {
 515
 516                 sdesc = (q80_stat_desc_t *)
 517                                 &hw->sds[sds_idx].sds_ring_base[comp_idx];
 518
 519                 opcode = Q8_STAT_DESC_OPCODE((sdesc->data[1]));
 520
 521                 if (!opcode)
 522                         break;
 523
 524                 switch (opcode) {
 525
 526                 case Q8_STAT_DESC_OPCODE_RCV_PKT:
 527
 528                         desc_count = 1;
 529
 530                         bzero(&sgc, sizeof(qla_sgl_comp_t));
 531
 532                         sgc.rcv.pkt_length =
 533                                 Q8_STAT_DESC_TOTAL_LENGTH((sdesc->data[0]));
 534                         sgc.rcv.num_handles = 1;
 535                         sgc.rcv.handle[0] =
 536                                 Q8_STAT_DESC_HANDLE((sdesc->data[0]));
 537                         sgc.rcv.chksum_status =
 538                                 Q8_STAT_DESC_STATUS((sdesc->data[1]));
 539
 540                         sgc.rcv.rss_hash =
 541                                 Q8_STAT_DESC_RSS_HASH((sdesc->data[0]));
 542
 543                         if (Q8_STAT_DESC_VLAN((sdesc->data[1]))) {
 544                                 sgc.rcv.vlan_tag =
 545                                         Q8_STAT_DESC_VLAN_ID((sdesc->data[1]));
 546                         }
 547                         qla_rx_intr(ha, &sgc.rcv, sds_idx);
 548                         break;
 549
 550                 case Q8_STAT_DESC_OPCODE_SGL_RCV:
 551
 552                         desc_count =
 553                                 Q8_STAT_DESC_COUNT_SGL_RCV((sdesc->data[1]));
 554
 555                         if (desc_count > 1) {
 556                                 c_idx = (comp_idx + desc_count -1) &
 557                                                 (NUM_STATUS_DESCRIPTORS-1);
 558                                 sdesc0 = (q80_stat_desc_t *)
 559                                         &hw->sds[sds_idx].sds_ring_base[c_idx];
 560
 561                                 if (Q8_STAT_DESC_OPCODE((sdesc0->data[1])) !=
 562                                                 Q8_STAT_DESC_OPCODE_CONT) {
 563                                         desc_count = 0;
 564                                         break;
 565                                 }
 566                         }
 567
 568                         bzero(&sgc, sizeof(qla_sgl_comp_t));
 569
 570                         sgc.rcv.pkt_length =
 571                                 Q8_STAT_DESC_TOTAL_LENGTH_SGL_RCV(\
 572                                         (sdesc->data[0]));
 573                         sgc.rcv.chksum_status =
 574                                 Q8_STAT_DESC_STATUS((sdesc->data[1]));
 575
 576                         sgc.rcv.rss_hash =
 577                                 Q8_STAT_DESC_RSS_HASH((sdesc->data[0]));
 578
 579                         if (Q8_STAT_DESC_VLAN((sdesc->data[1]))) {
 580                                 sgc.rcv.vlan_tag =
 581                                         Q8_STAT_DESC_VLAN_ID((sdesc->data[1]));
 582                         }
 583
 584                         QL_ASSERT(ha, (desc_count <= 2) ,\
 585                                 ("%s: [sds_idx, data0, data1]="\
 586                                 "%d, %p, %p]\n", __func__, sds_idx,\
 587                                 (void *)sdesc->data[0],\
 588                                 (void *)sdesc->data[1]));
 589
 590                         sgc.rcv.num_handles = 1;
 591                         sgc.rcv.handle[0] =
 592                                 Q8_STAT_DESC_HANDLE((sdesc->data[0]));
 593
 594                         if (qla_rcv_cont_sds(ha, sds_idx, comp_idx, desc_count,
 595                                 &sgc.rcv.handle[1], &nhandles)) {
 596                                 device_printf(dev,
 597                                         "%s: [sds_idx, dcount, data0, data1]="
 598                                          "[%d, %d, 0x%llx, 0x%llx]\n",
 599                                         __func__, sds_idx, desc_count,
 600                                         (long long unsigned int)sdesc->data[0],
 601                                         (long long unsigned int)sdesc->data[1]);
 602                                 desc_count = 0;
 603                                 break;
 604                         }
 605
 606                         sgc.rcv.num_handles += nhandles;
 607
 608                         qla_rx_intr(ha, &sgc.rcv, sds_idx);
 609
 610                         break;
 611
 612                 case Q8_STAT_DESC_OPCODE_SGL_LRO:
 613
 614                         desc_count =
 615                                 Q8_STAT_DESC_COUNT_SGL_LRO((sdesc->data[1]));
 616
 617                         if (desc_count > 1) {
 618                                 c_idx = (comp_idx + desc_count -1) &
 619                                                 (NUM_STATUS_DESCRIPTORS-1);
 620                                 sdesc0 = (q80_stat_desc_t *)
 621                                         &hw->sds[sds_idx].sds_ring_base[c_idx];
 622
 623                                 if (Q8_STAT_DESC_OPCODE((sdesc0->data[1])) !=
 624                                                 Q8_STAT_DESC_OPCODE_CONT) {
 625                                         desc_count = 0;
 626                                         break;
 627                                 }
 628                         }
 629                         bzero(&sgc, sizeof(qla_sgl_comp_t));
 630
 631                         sgc.lro.payload_length =
 632                         Q8_STAT_DESC_TOTAL_LENGTH_SGL_RCV((sdesc->data[0]));
 633
 634                         sgc.lro.rss_hash =
 635                                 Q8_STAT_DESC_RSS_HASH((sdesc->data[0]));
 636
 637                         sgc.lro.num_handles = 1;
 638                         sgc.lro.handle[0] =
 639                                 Q8_STAT_DESC_HANDLE((sdesc->data[0]));
 640
 641                         if (Q8_SGL_LRO_STAT_TS((sdesc->data[1])))
 642                                 sgc.lro.flags |= Q8_LRO_COMP_TS;
 643
 644                         if (Q8_SGL_LRO_STAT_PUSH_BIT((sdesc->data[1])))
 645                                 sgc.lro.flags |= Q8_LRO_COMP_PUSH_BIT;
 646
 647                         sgc.lro.l2_offset =
 648                                 Q8_SGL_LRO_STAT_L2_OFFSET((sdesc->data[1]));
 649                         sgc.lro.l4_offset =
 650                                 Q8_SGL_LRO_STAT_L4_OFFSET((sdesc->data[1]));
 651
 652                         if (Q8_STAT_DESC_VLAN((sdesc->data[1]))) {
 653                                 sgc.lro.vlan_tag =
 654                                         Q8_STAT_DESC_VLAN_ID((sdesc->data[1]));
 655                         }
 656
 657                         QL_ASSERT(ha, (desc_count <= 7) ,\
 658                                 ("%s: [sds_idx, data0, data1]="\
 659                                  "[%d, 0x%llx, 0x%llx]\n",\
 660                                 __func__, sds_idx,\
 661                                 (long long unsigned int)sdesc->data[0],\
 662                                 (long long unsigned int)sdesc->data[1]));
 663
 664                         if (qla_rcv_cont_sds(ha, sds_idx, comp_idx,
 665                                 desc_count, &sgc.lro.handle[1], &nhandles)) {
 666                                 device_printf(dev,
 667                                 "%s: [sds_idx, data0, data1]="\
 668                                  "[%d, 0x%llx, 0x%llx]\n",\
 669                                 __func__, sds_idx,\
 670                                 (long long unsigned int)sdesc->data[0],\
 671                                 (long long unsigned int)sdesc->data[1]);
 672
 673                                 desc_count = 0;
 674                                 break;
 675                         }
 676
 677                         sgc.lro.num_handles += nhandles;
 678
 679                         if (qla_lro_intr(ha, &sgc.lro, sds_idx)) {
 680                                 device_printf(dev,
 681                                 "%s: [sds_idx, data0, data1]="\
 682                                  "[%d, 0x%llx, 0x%llx]\n",\
 683                                 __func__, sds_idx,\
 684                                 (long long unsigned int)sdesc->data[0],\
 685                                 (long long unsigned int)sdesc->data[1]);
 686                                 device_printf(dev,
 687                                 "%s: [comp_idx, c_idx, dcount, nhndls]="\
 688                                  "[%d, %d, %d, %d]\n",\
 689                                 __func__, comp_idx, c_idx, desc_count,
 690                                 sgc.lro.num_handles);
 691                                 if (desc_count > 1) {
 692                                 device_printf(dev,
 693                                 "%s: [sds_idx, data0, data1]="\
 694                                  "[%d, 0x%llx, 0x%llx]\n",\
 695                                 __func__, sds_idx,\
 696                                 (long long unsigned int)sdesc0->data[0],\
 697                                 (long long unsigned int)sdesc0->data[1]);
 698                                 }
 699                         }
 700
 701                         break;
 702
 703                 default:
 704                         device_printf(dev, "%s: default 0x%llx!\n", __func__,
 705                                         (long long unsigned int)sdesc->data[0]);
 706                         break;
 707                 }
 708
 709                 if (desc_count == 0)
 710                         break;
 711
 712                 sds_replenish_threshold += desc_count;
 713
 714
 715                 while (desc_count--) {
 716                         sdesc->data[0] = 0ULL;
 717                         sdesc->data[1] = 0ULL;
 718                         comp_idx = (comp_idx + 1) & (NUM_STATUS_DESCRIPTORS-1);
 719                         sdesc = (q80_stat_desc_t *)
 720                                 &hw->sds[sds_idx].sds_ring_base[comp_idx];
 721                 }
 722
 723                 if (sds_replenish_threshold > ha->hw.sds_cidx_thres) {
 724                         sds_replenish_threshold = 0;
 725                         if (hw->sds[sds_idx].sdsr_next != comp_idx) {
 726                                 QL_UPDATE_SDS_CONSUMER_INDEX(ha, sds_idx,\
 727                                         comp_idx);
 728                         }
 729                         hw->sds[sds_idx].sdsr_next = comp_idx;
 730                 }
 731         }
 732
 733         if (ha->hw.enable_soft_lro) {
 734                 struct lro_ctrl         *lro;
 735
 736                 lro = &ha->hw.sds[sds_idx].lro;
 737
 738 #if (__FreeBSD_version >= 1100101)
 739
 740                 tcp_lro_flush_all(lro);
 741
 742 #else
 743                 struct lro_entry *queued;
 744
 745                 while ((!SLIST_EMPTY(&lro->lro_active))) {
 746                         queued = SLIST_FIRST(&lro->lro_active);
 747                         SLIST_REMOVE_HEAD(&lro->lro_active, next);
 748                         tcp_lro_flush(lro, queued);
 749                 }
 750
 751 #endif /* #if (__FreeBSD_version >= 1100101) */
 752
 753         }
 754
 755         if (ha->stop_rcv)
 756                 goto ql_rcv_isr_exit;
 757
 758         if (hw->sds[sds_idx].sdsr_next != comp_idx) {
 759                 QL_UPDATE_SDS_CONSUMER_INDEX(ha, sds_idx, comp_idx);
 760                 hw->sds[sds_idx].sdsr_next = comp_idx;
 761         } else {
 762                 if (ha->hw.num_rds_rings > 1)
 763                         r_idx = sds_idx;
 764
 765                 sdsp = &ha->hw.sds[sds_idx];
 766
 767                 if (sdsp->rx_free > ha->std_replenish)
 768                         qla_replenish_normal_rx(ha, sdsp, r_idx);
 769         }
 770
 771         sdesc = (q80_stat_desc_t *)&hw->sds[sds_idx].sds_ring_base[comp_idx];
 772         opcode = Q8_STAT_DESC_OPCODE((sdesc->data[1]));
 773
 774         if (opcode)
 775                 ret = -1;
 776
 777 ql_rcv_isr_exit:
 778         hw->sds[sds_idx].rcv_active = 0;
 779
 780         return (ret);
 781 }
 782
 783 void
 784 ql_mbx_isr(void *arg)
 785 {
 786         qla_host_t *ha;
 787         uint32_t data;
 788         uint32_t prev_link_state;
 789
 790         ha = arg;
 791
 792         if (ha == NULL) {
 793                 device_printf(ha->pci_dev, "%s: arg == NULL\n", __func__);
 794                 return;
 795         }
 796
 797         data = READ_REG32(ha, Q8_FW_MBOX_CNTRL);
 798         if ((data & 0x3) != 0x1) {
 799                 WRITE_REG32(ha, ha->hw.mbx_intr_mask_offset, 0);
 800                 return;
 801         }
 802
 803         data = READ_REG32(ha, Q8_FW_MBOX0);
 804
 805         if ((data & 0xF000) != 0x8000)
 806                 return;
 807
 808         data = data & 0xFFFF;
 809
 810         switch (data) {
 811
 812         case 0x8001:  /* It's an AEN */
 813
 814                 ha->hw.cable_oui = READ_REG32(ha, (Q8_FW_MBOX0 + 4));
 815
 816                 data = READ_REG32(ha, (Q8_FW_MBOX0 + 8));
 817                 ha->hw.cable_length = data & 0xFFFF;
 818
 819                 data = data >> 16;
 820                 ha->hw.link_speed = data & 0xFFF;
 821
 822                 data = READ_REG32(ha, (Q8_FW_MBOX0 + 12));
 823
 824                 prev_link_state =  ha->hw.link_up;
 825                 ha->hw.link_up = (((data & 0xFF) == 0) ? 0 : 1);
 826
 827                 if (prev_link_state !=  ha->hw.link_up) {
 828                         if (ha->hw.link_up)
 829                                 if_link_state_change(ha->ifp, LINK_STATE_UP);
 830                         else
 831                                 if_link_state_change(ha->ifp, LINK_STATE_DOWN);
 832                 }
 833
 834
 835                 ha->hw.module_type = ((data >> 8) & 0xFF);
 836                 ha->hw.flags.fduplex = (((data & 0xFF0000) == 0) ? 0 : 1);
 837                 ha->hw.flags.autoneg = (((data & 0xFF000000) == 0) ? 0 : 1);
 838
 839                 data = READ_REG32(ha, (Q8_FW_MBOX0 + 16));
 840                 ha->hw.flags.loopback_mode = data & 0x03;
 841
 842                 ha->hw.link_faults = (data >> 3) & 0xFF;
 843
 844                 break;
 845
 846         case 0x8100:
 847                 ha->hw.imd_compl=1;
 848                 break;
 849
 850         case 0x8101:
 851                 ha->async_event = 1;
 852                 ha->hw.aen_mb0 = 0x8101;
 853                 ha->hw.aen_mb1 = READ_REG32(ha, (Q8_FW_MBOX0 + 4));
 854                 ha->hw.aen_mb2 = READ_REG32(ha, (Q8_FW_MBOX0 + 8));
 855                 ha->hw.aen_mb3 = READ_REG32(ha, (Q8_FW_MBOX0 + 12));
 856                 ha->hw.aen_mb4 = READ_REG32(ha, (Q8_FW_MBOX0 + 16));
 857                 break;
 858
 859         case 0x8110:
 860                 /* for now just dump the registers */
 861                 {
 862                         uint32_t ombx[5];
 863
 864                         ombx[0] = READ_REG32(ha, (Q8_FW_MBOX0 + 4));
 865                         ombx[1] = READ_REG32(ha, (Q8_FW_MBOX0 + 8));
 866                         ombx[2] = READ_REG32(ha, (Q8_FW_MBOX0 + 12));
 867                         ombx[3] = READ_REG32(ha, (Q8_FW_MBOX0 + 16));
 868                         ombx[4] = READ_REG32(ha, (Q8_FW_MBOX0 + 20));
 869
 870                         device_printf(ha->pci_dev, "%s: "
 871                                 "0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
 872                                 __func__, data, ombx[0], ombx[1], ombx[2],
 873                                 ombx[3], ombx[4]);
 874                 }
 875
 876                 break;
 877
 878         case 0x8130:
 879                 /* sfp insertion aen */
 880                 device_printf(ha->pci_dev, "%s: sfp inserted [0x%08x]\n",
 881                         __func__, READ_REG32(ha, (Q8_FW_MBOX0 + 4)));
 882                 break;
 883
 884         case 0x8131:
 885                 /* sfp removal aen */
 886                 device_printf(ha->pci_dev, "%s: sfp removed]\n", __func__);
 887                 break;
 888
 889         case 0x8140:
 890                 {
 891                         uint32_t ombx[3];
 892
 893                         ombx[0] = READ_REG32(ha, (Q8_FW_MBOX0 + 4));
 894                         ombx[1] = READ_REG32(ha, (Q8_FW_MBOX0 + 8));
 895                         ombx[2] = READ_REG32(ha, (Q8_FW_MBOX0 + 12));
 896
 897                         device_printf(ha->pci_dev, "%s: "
 898                                 "0x%08x 0x%08x 0x%08x 0x%08x \n",
 899                                 __func__, data, ombx[0], ombx[1], ombx[2]);
 900                 }
 901                 break;
 902
 903         default:
 904                 device_printf(ha->pci_dev, "%s: AEN[0x%08x]\n", __func__, data);
 905                 break;
 906         }
 907         WRITE_REG32(ha, Q8_FW_MBOX_CNTRL, 0x0);
 908         WRITE_REG32(ha, ha->hw.mbx_intr_mask_offset, 0x0);
 909         return;
 910 }
 911
 912
 913 static void
 914 qla_replenish_normal_rx(qla_host_t *ha, qla_sds_t *sdsp, uint32_t r_idx)
 915 {
 916         qla_rx_buf_t *rxb;
 917         int count = sdsp->rx_free;
 918         uint32_t rx_next;
 919         qla_rdesc_t *rdesc;
 920
 921         /* we can play with this value via a sysctl */
 922         uint32_t replenish_thresh = ha->hw.rds_pidx_thres;
 923
 924         rdesc = &ha->hw.rds[r_idx];
 925
 926         rx_next = rdesc->rx_next;
 927
 928         while (count--) {
 929                 rxb = sdsp->rxb_free;
 930
 931                 if (rxb == NULL)
 932                         break;
 933
 934                 sdsp->rxb_free = rxb->next;
 935                 sdsp->rx_free--;
 936
 937                 if (ql_get_mbuf(ha, rxb, NULL) == 0) {
 938                         qla_set_hw_rcv_desc(ha, r_idx, rdesc->rx_in,
 939                                 rxb->handle,
 940                                 rxb->paddr, (rxb->m_head)->m_pkthdr.len);
 941                         rdesc->rx_in++;
 942                         if (rdesc->rx_in == NUM_RX_DESCRIPTORS)
 943                                 rdesc->rx_in = 0;
 944                         rdesc->rx_next++;
 945                         if (rdesc->rx_next == NUM_RX_DESCRIPTORS)
 946                                 rdesc->rx_next = 0;
 947                 } else {
 948                         device_printf(ha->pci_dev,
 949                                 "%s: qla_get_mbuf [(%d),(%d),(%d)] failed\n",
 950                                 __func__, r_idx, rdesc->rx_in, rxb->handle);
 951
 952                         rxb->m_head = NULL;
 953                         rxb->next = sdsp->rxb_free;
 954                         sdsp->rxb_free = rxb;
 955                         sdsp->rx_free++;
 956
 957                         break;
 958                 }
 959                 if (replenish_thresh-- == 0) {
 960                         QL_UPDATE_RDS_PRODUCER_INDEX(ha, rdesc->prod_std,
 961                                 rdesc->rx_next);
 962                         rx_next = rdesc->rx_next;
 963                         replenish_thresh = ha->hw.rds_pidx_thres;
 964                 }
 965         }
 966
 967         if (rx_next != rdesc->rx_next) {
 968                 QL_UPDATE_RDS_PRODUCER_INDEX(ha, rdesc->prod_std,
 969                         rdesc->rx_next);
 970         }
 971 }
 972
 973 void
 974 ql_isr(void *arg)
 975 {
 976         qla_ivec_t *ivec = arg;
 977         qla_host_t *ha ;
 978         int idx;
 979         qla_hw_t *hw;
 980         struct ifnet *ifp;
 981         qla_tx_fp_t *fp;
 982
 983         ha = ivec->ha;
 984         hw = &ha->hw;
 985         ifp = ha->ifp;
 986
 987         if ((idx = ivec->sds_idx) >= ha->hw.num_sds_rings)
 988                 return;
 989
 990         fp = &ha->tx_fp[idx];
 991         hw->sds[idx].intr_count++;
 992
 993         if ((fp->fp_taskqueue != NULL) &&
 994                 (ifp->if_drv_flags & IFF_DRV_RUNNING))
 995                 taskqueue_enqueue(fp->fp_taskqueue, &fp->fp_task);
 996
 997         return;
 998 }
 999