sys/dev/qlxgbe/ql_isr.c

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