drivers/net/cxgb3/cxgb3_offload.c

   1 /*
   2  * Copyright (c) 2006-2007 Chelsio, Inc. All rights reserved.
   3  *
   4  * This software is available to you under a choice of one of two
   5  * licenses.  You may choose to be licensed under the terms of the GNU
   6  * General Public License (GPL) Version 2, available from the file
   7  * COPYING in the main directory of this source tree, or the
   8  * OpenIB.org BSD license below:
   9  *
  10  *     Redistribution and use in source and binary forms, with or
  11  *     without modification, are permitted provided that the following
  12  *     conditions are met:
  13  *
  14  *      - Redistributions of source code must retain the above
  15  *        copyright notice, this list of conditions and the following
  16  *        disclaimer.
  17  *
  18  *      - Redistributions in binary form must reproduce the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer in the documentation and/or other materials
  21  *        provided with the distribution.
  22  *
  23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30  * SOFTWARE.
  31  */
  32
  33 #include <linux/list.h>
  34 #include <net/neighbour.h>
  35 #include <linux/notifier.h>
  36 #include <asm/atomic.h>
  37 #include <linux/proc_fs.h>
  38 #include <linux/if_vlan.h>
  39 #include <net/netevent.h>
  40 #include <linux/highmem.h>
  41 #include <linux/vmalloc.h>
  42
  43 #include "common.h"
  44 #include "regs.h"
  45 #include "cxgb3_ioctl.h"
  46 #include "cxgb3_ctl_defs.h"
  47 #include "cxgb3_defs.h"
  48 #include "l2t.h"
  49 #include "firmware_exports.h"
  50 #include "cxgb3_offload.h"
  51
  52 static LIST_HEAD(client_list);
  53 static LIST_HEAD(ofld_dev_list);
  54 static DEFINE_MUTEX(cxgb3_db_lock);
  55
  56 static DEFINE_RWLOCK(adapter_list_lock);
  57 static LIST_HEAD(adapter_list);
  58
  59 static const unsigned int MAX_ATIDS = 64 * 1024;
  60 static const unsigned int ATID_BASE = 0x100000;
  61
  62 static inline int offload_activated(struct t3cdev *tdev)
  63 {
  64         const struct adapter *adapter = tdev2adap(tdev);
  65
  66         return (test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map));
  67 }
  68
  69 /**
  70  *      cxgb3_register_client - register an offload client
  71  *      @client: the client
  72  *
  73  *      Add the client to the client list,
  74  *      and call backs the client for each activated offload device
  75  */
  76 void cxgb3_register_client(struct cxgb3_client *client)
  77 {
  78         struct t3cdev *tdev;
  79
  80         mutex_lock(&cxgb3_db_lock);
  81         list_add_tail(&client->client_list, &client_list);
  82
  83         if (client->add) {
  84                 list_for_each_entry(tdev, &ofld_dev_list, ofld_dev_list) {
  85                         if (offload_activated(tdev))
  86                                 client->add(tdev);
  87                 }
  88         }
  89         mutex_unlock(&cxgb3_db_lock);
  90 }
  91
  92 EXPORT_SYMBOL(cxgb3_register_client);
  93
  94 /**
  95  *      cxgb3_unregister_client - unregister an offload client
  96  *      @client: the client
  97  *
  98  *      Remove the client to the client list,
  99  *      and call backs the client for each activated offload device.
 100  */
 101 void cxgb3_unregister_client(struct cxgb3_client *client)
 102 {
 103         struct t3cdev *tdev;
 104
 105         mutex_lock(&cxgb3_db_lock);
 106         list_del(&client->client_list);
 107
 108         if (client->remove) {
 109                 list_for_each_entry(tdev, &ofld_dev_list, ofld_dev_list) {
 110                         if (offload_activated(tdev))
 111                                 client->remove(tdev);
 112                 }
 113         }
 114         mutex_unlock(&cxgb3_db_lock);
 115 }
 116
 117 EXPORT_SYMBOL(cxgb3_unregister_client);
 118
 119 /**
 120  *      cxgb3_add_clients - activate registered clients for an offload device
 121  *      @tdev: the offload device
 122  *
 123  *      Call backs all registered clients once a offload device is activated
 124  */
 125 void cxgb3_add_clients(struct t3cdev *tdev)
 126 {
 127         struct cxgb3_client *client;
 128
 129         mutex_lock(&cxgb3_db_lock);
 130         list_for_each_entry(client, &client_list, client_list) {
 131                 if (client->add)
 132                         client->add(tdev);
 133         }
 134         mutex_unlock(&cxgb3_db_lock);
 135 }
 136
 137 /**
 138  *      cxgb3_remove_clients - deactivates registered clients
 139  *                             for an offload device
 140  *      @tdev: the offload device
 141  *
 142  *      Call backs all registered clients once a offload device is deactivated
 143  */
 144 void cxgb3_remove_clients(struct t3cdev *tdev)
 145 {
 146         struct cxgb3_client *client;
 147
 148         mutex_lock(&cxgb3_db_lock);
 149         list_for_each_entry(client, &client_list, client_list) {
 150                 if (client->remove)
 151                         client->remove(tdev);
 152         }
 153         mutex_unlock(&cxgb3_db_lock);
 154 }
 155
 156 static struct net_device *get_iff_from_mac(struct adapter *adapter,
 157                                            const unsigned char *mac,
 158                                            unsigned int vlan)
 159 {
 160         int i;
 161
 162         for_each_port(adapter, i) {
 163                 const struct vlan_group *grp;
 164                 struct net_device *dev = adapter->port[i];
 165                 const struct port_info *p = netdev_priv(dev);
 166
 167                 if (!memcmp(dev->dev_addr, mac, ETH_ALEN)) {
 168                         if (vlan && vlan != VLAN_VID_MASK) {
 169                                 grp = p->vlan_grp;
 170                                 dev = grp ? grp->vlan_devices[vlan] : NULL;
 171                         } else
 172                                 while (dev->master)
 173                                         dev = dev->master;
 174                         return dev;
 175                 }
 176         }
 177         return NULL;
 178 }
 179
 180 static int cxgb_ulp_iscsi_ctl(struct adapter *adapter, unsigned int req,
 181                               void *data)
 182 {
 183         int ret = 0;
 184         struct ulp_iscsi_info *uiip = data;
 185
 186         switch (req) {
 187         case ULP_ISCSI_GET_PARAMS:
 188                 uiip->pdev = adapter->pdev;
 189                 uiip->llimit = t3_read_reg(adapter, A_ULPRX_ISCSI_LLIMIT);
 190                 uiip->ulimit = t3_read_reg(adapter, A_ULPRX_ISCSI_ULIMIT);
 191                 uiip->tagmask = t3_read_reg(adapter, A_ULPRX_ISCSI_TAGMASK);
 192                 /*
 193                  * On tx, the iscsi pdu has to be <= tx page size and has to
 194                  * fit into the Tx PM FIFO.
 195                  */
 196                 uiip->max_txsz = min(adapter->params.tp.tx_pg_size,
 197                                      t3_read_reg(adapter, A_PM1_TX_CFG) >> 17);
 198                 /* on rx, the iscsi pdu has to be < rx page size and the
 199                    whole pdu + cpl headers has to fit into one sge buffer */
 200                 uiip->max_rxsz = min_t(unsigned int,
 201                                        adapter->params.tp.rx_pg_size,
 202                                        (adapter->sge.qs[0].fl[1].buf_size -
 203                                         sizeof(struct cpl_rx_data) * 2 -
 204                                         sizeof(struct cpl_rx_data_ddp)));
 205                 break;
 206         case ULP_ISCSI_SET_PARAMS:
 207                 t3_write_reg(adapter, A_ULPRX_ISCSI_TAGMASK, uiip->tagmask);
 208                 break;
 209         default:
 210                 ret = -EOPNOTSUPP;
 211         }
 212         return ret;
 213 }
 214
 215 /* Response queue used for RDMA events. */
 216 #define ASYNC_NOTIF_RSPQ 0
 217
 218 static int cxgb_rdma_ctl(struct adapter *adapter, unsigned int req, void *data)
 219 {
 220         int ret = 0;
 221
 222         switch (req) {
 223         case RDMA_GET_PARAMS:{
 224                 struct rdma_info *req = data;
 225                 struct pci_dev *pdev = adapter->pdev;
 226
 227                 req->udbell_physbase = pci_resource_start(pdev, 2);
 228                 req->udbell_len = pci_resource_len(pdev, 2);
 229                 req->tpt_base =
 230                         t3_read_reg(adapter, A_ULPTX_TPT_LLIMIT);
 231                 req->tpt_top = t3_read_reg(adapter, A_ULPTX_TPT_ULIMIT);
 232                 req->pbl_base =
 233                         t3_read_reg(adapter, A_ULPTX_PBL_LLIMIT);
 234                 req->pbl_top = t3_read_reg(adapter, A_ULPTX_PBL_ULIMIT);
 235                 req->rqt_base = t3_read_reg(adapter, A_ULPRX_RQ_LLIMIT);
 236                 req->rqt_top = t3_read_reg(adapter, A_ULPRX_RQ_ULIMIT);
 237                 req->kdb_addr = adapter->regs + A_SG_KDOORBELL;
 238                 req->pdev = pdev;
 239                 break;
 240         }
 241         case RDMA_CQ_OP:{
 242                 unsigned long flags;
 243                 struct rdma_cq_op *req = data;
 244
 245                 /* may be called in any context */
 246                 spin_lock_irqsave(&adapter->sge.reg_lock, flags);
 247                 ret = t3_sge_cqcntxt_op(adapter, req->id, req->op,
 248                                         req->credits);
 249                 spin_unlock_irqrestore(&adapter->sge.reg_lock, flags);
 250                 break;
 251         }
 252         case RDMA_GET_MEM:{
 253                 struct ch_mem_range *t = data;
 254                 struct mc7 *mem;
 255
 256                 if ((t->addr & 7) || (t->len & 7))
 257                         return -EINVAL;
 258                 if (t->mem_id == MEM_CM)
 259                         mem = &adapter->cm;
 260                 else if (t->mem_id == MEM_PMRX)
 261                         mem = &adapter->pmrx;
 262                 else if (t->mem_id == MEM_PMTX)
 263                         mem = &adapter->pmtx;
 264                 else
 265                         return -EINVAL;
 266
 267                 ret =
 268                         t3_mc7_bd_read(mem, t->addr / 8, t->len / 8,
 269                                         (u64 *) t->buf);
 270                 if (ret)
 271                         return ret;
 272                 break;
 273         }
 274         case RDMA_CQ_SETUP:{
 275                 struct rdma_cq_setup *req = data;
 276
 277                 spin_lock_irq(&adapter->sge.reg_lock);
 278                 ret =
 279                         t3_sge_init_cqcntxt(adapter, req->id,
 280                                         req->base_addr, req->size,
 281                                         ASYNC_NOTIF_RSPQ,
 282                                         req->ovfl_mode, req->credits,
 283                                         req->credit_thres);
 284                 spin_unlock_irq(&adapter->sge.reg_lock);
 285                 break;
 286         }
 287         case RDMA_CQ_DISABLE:
 288                 spin_lock_irq(&adapter->sge.reg_lock);
 289                 ret = t3_sge_disable_cqcntxt(adapter, *(unsigned int *)data);
 290                 spin_unlock_irq(&adapter->sge.reg_lock);
 291                 break;
 292         case RDMA_CTRL_QP_SETUP:{
 293                 struct rdma_ctrlqp_setup *req = data;
 294
 295                 spin_lock_irq(&adapter->sge.reg_lock);
 296                 ret = t3_sge_init_ecntxt(adapter, FW_RI_SGEEC_START, 0,
 297                                                 SGE_CNTXT_RDMA,
 298                                                 ASYNC_NOTIF_RSPQ,
 299                                                 req->base_addr, req->size,
 300                                                 FW_RI_TID_START, 1, 0);
 301                 spin_unlock_irq(&adapter->sge.reg_lock);
 302                 break;
 303         }
 304         default:
 305                 ret = -EOPNOTSUPP;
 306         }
 307         return ret;
 308 }
 309
 310 static int cxgb_offload_ctl(struct t3cdev *tdev, unsigned int req, void *data)
 311 {
 312         struct adapter *adapter = tdev2adap(tdev);
 313         struct tid_range *tid;
 314         struct mtutab *mtup;
 315         struct iff_mac *iffmacp;
 316         struct ddp_params *ddpp;
 317         struct adap_ports *ports;
 318         int i;
 319
 320         switch (req) {
 321         case GET_MAX_OUTSTANDING_WR:
 322                 *(unsigned int *)data = FW_WR_NUM;
 323                 break;
 324         case GET_WR_LEN:
 325                 *(unsigned int *)data = WR_FLITS;
 326                 break;
 327         case GET_TX_MAX_CHUNK:
 328                 *(unsigned int *)data = 1 << 20;        /* 1MB */
 329                 break;
 330         case GET_TID_RANGE:
 331                 tid = data;
 332                 tid->num = t3_mc5_size(&adapter->mc5) -
 333                     adapter->params.mc5.nroutes -
 334                     adapter->params.mc5.nfilters - adapter->params.mc5.nservers;
 335                 tid->base = 0;
 336                 break;
 337         case GET_STID_RANGE:
 338                 tid = data;
 339                 tid->num = adapter->params.mc5.nservers;
 340                 tid->base = t3_mc5_size(&adapter->mc5) - tid->num -
 341                     adapter->params.mc5.nfilters - adapter->params.mc5.nroutes;
 342                 break;
 343         case GET_L2T_CAPACITY:
 344                 *(unsigned int *)data = 2048;
 345                 break;
 346         case GET_MTUS:
 347                 mtup = data;
 348                 mtup->size = NMTUS;
 349                 mtup->mtus = adapter->params.mtus;
 350                 break;
 351         case GET_IFF_FROM_MAC:
 352                 iffmacp = data;
 353                 iffmacp->dev = get_iff_from_mac(adapter, iffmacp->mac_addr,
 354                                                 iffmacp->vlan_tag &
 355                                                 VLAN_VID_MASK);
 356                 break;
 357         case GET_DDP_PARAMS:
 358                 ddpp = data;
 359                 ddpp->llimit = t3_read_reg(adapter, A_ULPRX_TDDP_LLIMIT);
 360                 ddpp->ulimit = t3_read_reg(adapter, A_ULPRX_TDDP_ULIMIT);
 361                 ddpp->tag_mask = t3_read_reg(adapter, A_ULPRX_TDDP_TAGMASK);
 362                 break;
 363         case GET_PORTS:
 364                 ports = data;
 365                 ports->nports = adapter->params.nports;
 366                 for_each_port(adapter, i)
 367                         ports->lldevs[i] = adapter->port[i];
 368                 break;
 369         case ULP_ISCSI_GET_PARAMS:
 370         case ULP_ISCSI_SET_PARAMS:
 371                 if (!offload_running(adapter))
 372                         return -EAGAIN;
 373                 return cxgb_ulp_iscsi_ctl(adapter, req, data);
 374         case RDMA_GET_PARAMS:
 375         case RDMA_CQ_OP:
 376         case RDMA_CQ_SETUP:
 377         case RDMA_CQ_DISABLE:
 378         case RDMA_CTRL_QP_SETUP:
 379         case RDMA_GET_MEM:
 380                 if (!offload_running(adapter))
 381                         return -EAGAIN;
 382                 return cxgb_rdma_ctl(adapter, req, data);
 383         default:
 384                 return -EOPNOTSUPP;
 385         }
 386         return 0;
 387 }
 388
 389 /*
 390  * Dummy handler for Rx offload packets in case we get an offload packet before
 391  * proper processing is setup.  This complains and drops the packet as it isn't
 392  * normal to get offload packets at this stage.
 393  */
 394 static int rx_offload_blackhole(struct t3cdev *dev, struct sk_buff **skbs,
 395                                 int n)
 396 {
 397         CH_ERR(tdev2adap(dev), "%d unexpected offload packets, first data %u\n",
 398                n, ntohl(*(__be32 *)skbs[0]->data));
 399         while (n--)
 400                 dev_kfree_skb_any(skbs[n]);
 401         return 0;
 402 }
 403
 404 static void dummy_neigh_update(struct t3cdev *dev, struct neighbour *neigh)
 405 {
 406 }
 407
 408 void cxgb3_set_dummy_ops(struct t3cdev *dev)
 409 {
 410         dev->recv = rx_offload_blackhole;
 411         dev->neigh_update = dummy_neigh_update;
 412 }
 413
 414 /*
 415  * Free an active-open TID.
 416  */
 417 void *cxgb3_free_atid(struct t3cdev *tdev, int atid)
 418 {
 419         struct tid_info *t = &(T3C_DATA(tdev))->tid_maps;
 420         union active_open_entry *p = atid2entry(t, atid);
 421         void *ctx = p->t3c_tid.ctx;
 422
 423         spin_lock_bh(&t->atid_lock);
 424         p->next = t->afree;
 425         t->afree = p;
 426         t->atids_in_use--;
 427         spin_unlock_bh(&t->atid_lock);
 428
 429         return ctx;
 430 }
 431
 432 EXPORT_SYMBOL(cxgb3_free_atid);
 433
 434 /*
 435  * Free a server TID and return it to the free pool.
 436  */
 437 void cxgb3_free_stid(struct t3cdev *tdev, int stid)
 438 {
 439         struct tid_info *t = &(T3C_DATA(tdev))->tid_maps;
 440         union listen_entry *p = stid2entry(t, stid);
 441
 442         spin_lock_bh(&t->stid_lock);
 443         p->next = t->sfree;
 444         t->sfree = p;
 445         t->stids_in_use--;
 446         spin_unlock_bh(&t->stid_lock);
 447 }
 448
 449 EXPORT_SYMBOL(cxgb3_free_stid);
 450
 451 void cxgb3_insert_tid(struct t3cdev *tdev, struct cxgb3_client *client,
 452                       void *ctx, unsigned int tid)
 453 {
 454         struct tid_info *t = &(T3C_DATA(tdev))->tid_maps;
 455
 456         t->tid_tab[tid].client = client;
 457         t->tid_tab[tid].ctx = ctx;
 458         atomic_inc(&t->tids_in_use);
 459 }
 460
 461 EXPORT_SYMBOL(cxgb3_insert_tid);
 462
 463 /*
 464  * Populate a TID_RELEASE WR.  The skb must be already propely sized.
 465  */
 466 static inline void mk_tid_release(struct sk_buff *skb, unsigned int tid)
 467 {
 468         struct cpl_tid_release *req;
 469
 470         skb->priority = CPL_PRIORITY_SETUP;
 471         req = (struct cpl_tid_release *)__skb_put(skb, sizeof(*req));
 472         req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
 473         OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_TID_RELEASE, tid));
 474 }
 475
 476 static void t3_process_tid_release_list(struct work_struct *work)
 477 {
 478         struct t3c_data *td = container_of(work, struct t3c_data,
 479                                            tid_release_task);
 480         struct sk_buff *skb;
 481         struct t3cdev *tdev = td->dev;
 482
 483
 484         spin_lock_bh(&td->tid_release_lock);
 485         while (td->tid_release_list) {
 486                 struct t3c_tid_entry *p = td->tid_release_list;
 487
 488                 td->tid_release_list = (struct t3c_tid_entry *)p->ctx;
 489                 spin_unlock_bh(&td->tid_release_lock);
 490
 491                 skb = alloc_skb(sizeof(struct cpl_tid_release),
 492                                 GFP_KERNEL | __GFP_NOFAIL);
 493                 mk_tid_release(skb, p - td->tid_maps.tid_tab);
 494                 cxgb3_ofld_send(tdev, skb);
 495                 p->ctx = NULL;
 496                 spin_lock_bh(&td->tid_release_lock);
 497         }
 498         spin_unlock_bh(&td->tid_release_lock);
 499 }
 500
 501 /* use ctx as a next pointer in the tid release list */
 502 void cxgb3_queue_tid_release(struct t3cdev *tdev, unsigned int tid)
 503 {
 504         struct t3c_data *td = T3C_DATA(tdev);
 505         struct t3c_tid_entry *p = &td->tid_maps.tid_tab[tid];
 506
 507         spin_lock_bh(&td->tid_release_lock);
 508         p->ctx = (void *)td->tid_release_list;
 509         td->tid_release_list = p;
 510         if (!p->ctx)
 511                 schedule_work(&td->tid_release_task);
 512         spin_unlock_bh(&td->tid_release_lock);
 513 }
 514
 515 EXPORT_SYMBOL(cxgb3_queue_tid_release);
 516
 517 /*
 518  * Remove a tid from the TID table.  A client may defer processing its last
 519  * CPL message if it is locked at the time it arrives, and while the message
 520  * sits in the client's backlog the TID may be reused for another connection.
 521  * To handle this we atomically switch the TID association if it still points
 522  * to the original client context.
 523  */
 524 void cxgb3_remove_tid(struct t3cdev *tdev, void *ctx, unsigned int tid)
 525 {
 526         struct tid_info *t = &(T3C_DATA(tdev))->tid_maps;
 527
 528         BUG_ON(tid >= t->ntids);
 529         if (tdev->type == T3A)
 530                 (void)cmpxchg(&t->tid_tab[tid].ctx, ctx, NULL);
 531         else {
 532                 struct sk_buff *skb;
 533
 534                 skb = alloc_skb(sizeof(struct cpl_tid_release), GFP_ATOMIC);
 535                 if (likely(skb)) {
 536                         mk_tid_release(skb, tid);
 537                         cxgb3_ofld_send(tdev, skb);
 538                         t->tid_tab[tid].ctx = NULL;
 539                 } else
 540                         cxgb3_queue_tid_release(tdev, tid);
 541         }
 542         atomic_dec(&t->tids_in_use);
 543 }
 544
 545 EXPORT_SYMBOL(cxgb3_remove_tid);
 546
 547 int cxgb3_alloc_atid(struct t3cdev *tdev, struct cxgb3_client *client,
 548                      void *ctx)
 549 {
 550         int atid = -1;
 551         struct tid_info *t = &(T3C_DATA(tdev))->tid_maps;
 552
 553         spin_lock_bh(&t->atid_lock);
 554         if (t->afree) {
 555                 union active_open_entry *p = t->afree;
 556
 557                 atid = (p - t->atid_tab) + t->atid_base;
 558                 t->afree = p->next;
 559                 p->t3c_tid.ctx = ctx;
 560                 p->t3c_tid.client = client;
 561                 t->atids_in_use++;
 562         }
 563         spin_unlock_bh(&t->atid_lock);
 564         return atid;
 565 }
 566
 567 EXPORT_SYMBOL(cxgb3_alloc_atid);
 568
 569 int cxgb3_alloc_stid(struct t3cdev *tdev, struct cxgb3_client *client,
 570                      void *ctx)
 571 {
 572         int stid = -1;
 573         struct tid_info *t = &(T3C_DATA(tdev))->tid_maps;
 574
 575         spin_lock_bh(&t->stid_lock);
 576         if (t->sfree) {
 577                 union listen_entry *p = t->sfree;
 578
 579                 stid = (p - t->stid_tab) + t->stid_base;
 580                 t->sfree = p->next;
 581                 p->t3c_tid.ctx = ctx;
 582                 p->t3c_tid.client = client;
 583                 t->stids_in_use++;
 584         }
 585         spin_unlock_bh(&t->stid_lock);
 586         return stid;
 587 }
 588
 589 EXPORT_SYMBOL(cxgb3_alloc_stid);
 590
 591 static int do_smt_write_rpl(struct t3cdev *dev, struct sk_buff *skb)
 592 {
 593         struct cpl_smt_write_rpl *rpl = cplhdr(skb);
 594
 595         if (rpl->status != CPL_ERR_NONE)
 596                 printk(KERN_ERR
 597                        "Unexpected SMT_WRITE_RPL status %u for entry %u\n",
 598                        rpl->status, GET_TID(rpl));
 599
 600         return CPL_RET_BUF_DONE;
 601 }
 602
 603 static int do_l2t_write_rpl(struct t3cdev *dev, struct sk_buff *skb)
 604 {
 605         struct cpl_l2t_write_rpl *rpl = cplhdr(skb);
 606
 607         if (rpl->status != CPL_ERR_NONE)
 608                 printk(KERN_ERR
 609                        "Unexpected L2T_WRITE_RPL status %u for entry %u\n",
 610                        rpl->status, GET_TID(rpl));
 611
 612         return CPL_RET_BUF_DONE;
 613 }
 614
 615 static int do_act_open_rpl(struct t3cdev *dev, struct sk_buff *skb)
 616 {
 617         struct cpl_act_open_rpl *rpl = cplhdr(skb);
 618         unsigned int atid = G_TID(ntohl(rpl->atid));
 619         struct t3c_tid_entry *t3c_tid;
 620
 621         t3c_tid = lookup_atid(&(T3C_DATA(dev))->tid_maps, atid);
 622         if (t3c_tid->ctx && t3c_tid->client && t3c_tid->client->handlers &&
 623             t3c_tid->client->handlers[CPL_ACT_OPEN_RPL]) {
 624                 return t3c_tid->client->handlers[CPL_ACT_OPEN_RPL] (dev, skb,
 625                                                                     t3c_tid->
 626                                                                     ctx);
 627         } else {
 628                 printk(KERN_ERR "%s: received clientless CPL command 0x%x\n",
 629                        dev->name, CPL_ACT_OPEN_RPL);
 630                 return CPL_RET_BUF_DONE | CPL_RET_BAD_MSG;
 631         }
 632 }
 633
 634 static int do_stid_rpl(struct t3cdev *dev, struct sk_buff *skb)
 635 {
 636         union opcode_tid *p = cplhdr(skb);
 637         unsigned int stid = G_TID(ntohl(p->opcode_tid));
 638         struct t3c_tid_entry *t3c_tid;
 639
 640         t3c_tid = lookup_stid(&(T3C_DATA(dev))->tid_maps, stid);
 641         if (t3c_tid->ctx && t3c_tid->client->handlers &&
 642             t3c_tid->client->handlers[p->opcode]) {
 643                 return t3c_tid->client->handlers[p->opcode] (dev, skb,
 644                                                              t3c_tid->ctx);
 645         } else {
 646                 printk(KERN_ERR "%s: received clientless CPL command 0x%x\n",
 647                        dev->name, p->opcode);
 648                 return CPL_RET_BUF_DONE | CPL_RET_BAD_MSG;
 649         }
 650 }
 651
 652 static int do_hwtid_rpl(struct t3cdev *dev, struct sk_buff *skb)
 653 {
 654         union opcode_tid *p = cplhdr(skb);
 655         unsigned int hwtid = G_TID(ntohl(p->opcode_tid));
 656         struct t3c_tid_entry *t3c_tid;
 657
 658         t3c_tid = lookup_tid(&(T3C_DATA(dev))->tid_maps, hwtid);
 659         if (t3c_tid->ctx && t3c_tid->client->handlers &&
 660             t3c_tid->client->handlers[p->opcode]) {
 661                 return t3c_tid->client->handlers[p->opcode]
 662                     (dev, skb, t3c_tid->ctx);
 663         } else {
 664                 printk(KERN_ERR "%s: received clientless CPL command 0x%x\n",
 665                        dev->name, p->opcode);
 666                 return CPL_RET_BUF_DONE | CPL_RET_BAD_MSG;
 667         }
 668 }
 669
 670 static int do_cr(struct t3cdev *dev, struct sk_buff *skb)
 671 {
 672         struct cpl_pass_accept_req *req = cplhdr(skb);
 673         unsigned int stid = G_PASS_OPEN_TID(ntohl(req->tos_tid));
 674         struct t3c_tid_entry *t3c_tid;
 675
 676         t3c_tid = lookup_stid(&(T3C_DATA(dev))->tid_maps, stid);
 677         if (t3c_tid->ctx && t3c_tid->client->handlers &&
 678             t3c_tid->client->handlers[CPL_PASS_ACCEPT_REQ]) {
 679                 return t3c_tid->client->handlers[CPL_PASS_ACCEPT_REQ]
 680                     (dev, skb, t3c_tid->ctx);
 681         } else {
 682                 printk(KERN_ERR "%s: received clientless CPL command 0x%x\n",
 683                        dev->name, CPL_PASS_ACCEPT_REQ);
 684                 return CPL_RET_BUF_DONE | CPL_RET_BAD_MSG;
 685         }
 686 }
 687
 688 static int do_abort_req_rss(struct t3cdev *dev, struct sk_buff *skb)
 689 {
 690         union opcode_tid *p = cplhdr(skb);
 691         unsigned int hwtid = G_TID(ntohl(p->opcode_tid));
 692         struct t3c_tid_entry *t3c_tid;
 693
 694         t3c_tid = lookup_tid(&(T3C_DATA(dev))->tid_maps, hwtid);
 695         if (t3c_tid->ctx && t3c_tid->client->handlers &&
 696             t3c_tid->client->handlers[p->opcode]) {
 697                 return t3c_tid->client->handlers[p->opcode]
 698                     (dev, skb, t3c_tid->ctx);
 699         } else {
 700                 struct cpl_abort_req_rss *req = cplhdr(skb);
 701                 struct cpl_abort_rpl *rpl;
 702
 703                 struct sk_buff *skb =
 704                     alloc_skb(sizeof(struct cpl_abort_rpl), GFP_ATOMIC);
 705                 if (!skb) {
 706                         printk("do_abort_req_rss: couldn't get skb!\n");
 707                         goto out;
 708                 }
 709                 skb->priority = CPL_PRIORITY_DATA;
 710                 __skb_put(skb, sizeof(struct cpl_abort_rpl));
 711                 rpl = cplhdr(skb);
 712                 rpl->wr.wr_hi =
 713                     htonl(V_WR_OP(FW_WROPCODE_OFLD_HOST_ABORT_CON_RPL));
 714                 rpl->wr.wr_lo = htonl(V_WR_TID(GET_TID(req)));
 715                 OPCODE_TID(rpl) =
 716                     htonl(MK_OPCODE_TID(CPL_ABORT_RPL, GET_TID(req)));
 717                 rpl->cmd = req->status;
 718                 cxgb3_ofld_send(dev, skb);
 719 out:
 720                 return CPL_RET_BUF_DONE;
 721         }
 722 }
 723
 724 static int do_act_establish(struct t3cdev *dev, struct sk_buff *skb)
 725 {
 726         struct cpl_act_establish *req = cplhdr(skb);
 727         unsigned int atid = G_PASS_OPEN_TID(ntohl(req->tos_tid));
 728         struct t3c_tid_entry *t3c_tid;
 729
 730         t3c_tid = lookup_atid(&(T3C_DATA(dev))->tid_maps, atid);
 731         if (t3c_tid->ctx && t3c_tid->client->handlers &&
 732             t3c_tid->client->handlers[CPL_ACT_ESTABLISH]) {
 733                 return t3c_tid->client->handlers[CPL_ACT_ESTABLISH]
 734                     (dev, skb, t3c_tid->ctx);
 735         } else {
 736                 printk(KERN_ERR "%s: received clientless CPL command 0x%x\n",
 737                        dev->name, CPL_PASS_ACCEPT_REQ);
 738                 return CPL_RET_BUF_DONE | CPL_RET_BAD_MSG;
 739         }
 740 }
 741
 742 static int do_set_tcb_rpl(struct t3cdev *dev, struct sk_buff *skb)
 743 {
 744         struct cpl_set_tcb_rpl *rpl = cplhdr(skb);
 745
 746         if (rpl->status != CPL_ERR_NONE)
 747                 printk(KERN_ERR
 748                        "Unexpected SET_TCB_RPL status %u for tid %u\n",
 749                        rpl->status, GET_TID(rpl));
 750         return CPL_RET_BUF_DONE;
 751 }
 752
 753 static int do_trace(struct t3cdev *dev, struct sk_buff *skb)
 754 {
 755         struct cpl_trace_pkt *p = cplhdr(skb);
 756
 757         skb->protocol = htons(0xffff);
 758         skb->dev = dev->lldev;
 759         skb_pull(skb, sizeof(*p));
 760         skb->mac.raw = skb->data;
 761         netif_receive_skb(skb);
 762         return 0;
 763 }
 764
 765 static int do_term(struct t3cdev *dev, struct sk_buff *skb)
 766 {
 767         unsigned int hwtid = ntohl(skb->priority) >> 8 & 0xfffff;
 768         unsigned int opcode = G_OPCODE(ntohl(skb->csum));
 769         struct t3c_tid_entry *t3c_tid;
 770
 771         t3c_tid = lookup_tid(&(T3C_DATA(dev))->tid_maps, hwtid);
 772         if (t3c_tid->ctx && t3c_tid->client->handlers &&
 773             t3c_tid->client->handlers[opcode]) {
 774                 return t3c_tid->client->handlers[opcode] (dev, skb,
 775                                                           t3c_tid->ctx);
 776         } else {
 777                 printk(KERN_ERR "%s: received clientless CPL command 0x%x\n",
 778                        dev->name, opcode);
 779                 return CPL_RET_BUF_DONE | CPL_RET_BAD_MSG;
 780         }
 781 }
 782
 783 static int nb_callback(struct notifier_block *self, unsigned long event,
 784                        void *ctx)
 785 {
 786         switch (event) {
 787         case (NETEVENT_NEIGH_UPDATE):{
 788                 cxgb_neigh_update((struct neighbour *)ctx);
 789                 break;
 790         }
 791         case (NETEVENT_PMTU_UPDATE):
 792                 break;
 793         case (NETEVENT_REDIRECT):{
 794                 struct netevent_redirect *nr = ctx;
 795                 cxgb_redirect(nr->old, nr->new);
 796                 cxgb_neigh_update(nr->new->neighbour);
 797                 break;
 798         }
 799         default:
 800                 break;
 801         }
 802         return 0;
 803 }
 804
 805 static struct notifier_block nb = {
 806         .notifier_call = nb_callback
 807 };
 808
 809 /*
 810  * Process a received packet with an unknown/unexpected CPL opcode.
 811  */
 812 static int do_bad_cpl(struct t3cdev *dev, struct sk_buff *skb)
 813 {
 814         printk(KERN_ERR "%s: received bad CPL command 0x%x\n", dev->name,
 815                *skb->data);
 816         return CPL_RET_BUF_DONE | CPL_RET_BAD_MSG;
 817 }
 818
 819 /*
 820  * Handlers for each CPL opcode
 821  */
 822 static cpl_handler_func cpl_handlers[NUM_CPL_CMDS];
 823
 824 /*
 825  * Add a new handler to the CPL dispatch table.  A NULL handler may be supplied
 826  * to unregister an existing handler.
 827  */
 828 void t3_register_cpl_handler(unsigned int opcode, cpl_handler_func h)
 829 {
 830         if (opcode < NUM_CPL_CMDS)
 831                 cpl_handlers[opcode] = h ? h : do_bad_cpl;
 832         else
 833                 printk(KERN_ERR "T3C: handler registration for "
 834                        "opcode %x failed\n", opcode);
 835 }
 836
 837 EXPORT_SYMBOL(t3_register_cpl_handler);
 838
 839 /*
 840  * T3CDEV's receive method.
 841  */
 842 int process_rx(struct t3cdev *dev, struct sk_buff **skbs, int n)
 843 {
 844         while (n--) {
 845                 struct sk_buff *skb = *skbs++;
 846                 unsigned int opcode = G_OPCODE(ntohl(skb->csum));
 847                 int ret = cpl_handlers[opcode] (dev, skb);
 848
 849 #if VALIDATE_TID
 850                 if (ret & CPL_RET_UNKNOWN_TID) {
 851                         union opcode_tid *p = cplhdr(skb);
 852
 853                         printk(KERN_ERR "%s: CPL message (opcode %u) had "
 854                                "unknown TID %u\n", dev->name, opcode,
 855                                G_TID(ntohl(p->opcode_tid)));
 856                 }
 857 #endif
 858                 if (ret & CPL_RET_BUF_DONE)
 859                         kfree_skb(skb);
 860         }
 861         return 0;
 862 }
 863
 864 /*
 865  * Sends an sk_buff to a T3C driver after dealing with any active network taps.
 866  */
 867 int cxgb3_ofld_send(struct t3cdev *dev, struct sk_buff *skb)
 868 {
 869         int r;
 870
 871         local_bh_disable();
 872         r = dev->send(dev, skb);
 873         local_bh_enable();
 874         return r;
 875 }
 876
 877 EXPORT_SYMBOL(cxgb3_ofld_send);
 878
 879 static int is_offloading(struct net_device *dev)
 880 {
 881         struct adapter *adapter;
 882         int i;
 883
 884         read_lock_bh(&adapter_list_lock);
 885         list_for_each_entry(adapter, &adapter_list, adapter_list) {
 886                 for_each_port(adapter, i) {
 887                         if (dev == adapter->port[i]) {
 888                                 read_unlock_bh(&adapter_list_lock);
 889                                 return 1;
 890                         }
 891                 }
 892         }
 893         read_unlock_bh(&adapter_list_lock);
 894         return 0;
 895 }
 896
 897 void cxgb_neigh_update(struct neighbour *neigh)
 898 {
 899         struct net_device *dev = neigh->dev;
 900
 901         if (dev && (is_offloading(dev))) {
 902                 struct t3cdev *tdev = T3CDEV(dev);
 903
 904                 BUG_ON(!tdev);
 905                 t3_l2t_update(tdev, neigh);
 906         }
 907 }
 908
 909 static void set_l2t_ix(struct t3cdev *tdev, u32 tid, struct l2t_entry *e)
 910 {
 911         struct sk_buff *skb;
 912         struct cpl_set_tcb_field *req;
 913
 914         skb = alloc_skb(sizeof(*req), GFP_ATOMIC);
 915         if (!skb) {
 916                 printk(KERN_ERR "%s: cannot allocate skb!\n", __FUNCTION__);
 917                 return;
 918         }
 919         skb->priority = CPL_PRIORITY_CONTROL;
 920         req = (struct cpl_set_tcb_field *)skb_put(skb, sizeof(*req));
 921         req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
 922         OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SET_TCB_FIELD, tid));
 923         req->reply = 0;
 924         req->cpu_idx = 0;
 925         req->word = htons(W_TCB_L2T_IX);
 926         req->mask = cpu_to_be64(V_TCB_L2T_IX(M_TCB_L2T_IX));
 927         req->val = cpu_to_be64(V_TCB_L2T_IX(e->idx));
 928         tdev->send(tdev, skb);
 929 }
 930
 931 void cxgb_redirect(struct dst_entry *old, struct dst_entry *new)
 932 {
 933         struct net_device *olddev, *newdev;
 934         struct tid_info *ti;
 935         struct t3cdev *tdev;
 936         u32 tid;
 937         int update_tcb;
 938         struct l2t_entry *e;
 939         struct t3c_tid_entry *te;
 940
 941         olddev = old->neighbour->dev;
 942         newdev = new->neighbour->dev;
 943         if (!is_offloading(olddev))
 944                 return;
 945         if (!is_offloading(newdev)) {
 946                 printk(KERN_WARNING "%s: Redirect to non-offload"
 947                        "device ignored.\n", __FUNCTION__);
 948                 return;
 949         }
 950         tdev = T3CDEV(olddev);
 951         BUG_ON(!tdev);
 952         if (tdev != T3CDEV(newdev)) {
 953                 printk(KERN_WARNING "%s: Redirect to different "
 954                        "offload device ignored.\n", __FUNCTION__);
 955                 return;
 956         }
 957
 958         /* Add new L2T entry */
 959         e = t3_l2t_get(tdev, new->neighbour, newdev);
 960         if (!e) {
 961                 printk(KERN_ERR "%s: couldn't allocate new l2t entry!\n",
 962                        __FUNCTION__);
 963                 return;
 964         }
 965
 966         /* Walk tid table and notify clients of dst change. */
 967         ti = &(T3C_DATA(tdev))->tid_maps;
 968         for (tid = 0; tid < ti->ntids; tid++) {
 969                 te = lookup_tid(ti, tid);
 970                 BUG_ON(!te);
 971                 if (te->ctx && te->client && te->client->redirect) {
 972                         update_tcb = te->client->redirect(te->ctx, old, new, e);
 973                         if (update_tcb) {
 974                                 l2t_hold(L2DATA(tdev), e);
 975                                 set_l2t_ix(tdev, tid, e);
 976                         }
 977                 }
 978         }
 979         l2t_release(L2DATA(tdev), e);
 980 }
 981
 982 /*
 983  * Allocate a chunk of memory using kmalloc or, if that fails, vmalloc.
 984  * The allocated memory is cleared.
 985  */
 986 void *cxgb_alloc_mem(unsigned long size)
 987 {
 988         void *p = kmalloc(size, GFP_KERNEL);
 989
 990         if (!p)
 991                 p = vmalloc(size);
 992         if (p)
 993                 memset(p, 0, size);
 994         return p;
 995 }
 996
 997 /*
 998  * Free memory allocated through t3_alloc_mem().
 999  */
1000 void cxgb_free_mem(void *addr)
1001 {
1002         unsigned long p = (unsigned long)addr;
1003
1004         if (p >= VMALLOC_START && p < VMALLOC_END)
1005                 vfree(addr);
1006         else
1007                 kfree(addr);
1008 }
1009
1010 /*
1011  * Allocate and initialize the TID tables.  Returns 0 on success.
1012  */
1013 static int init_tid_tabs(struct tid_info *t, unsigned int ntids,
1014                          unsigned int natids, unsigned int nstids,
1015                          unsigned int atid_base, unsigned int stid_base)
1016 {
1017         unsigned long size = ntids * sizeof(*t->tid_tab) +
1018             natids * sizeof(*t->atid_tab) + nstids * sizeof(*t->stid_tab);
1019
1020         t->tid_tab = cxgb_alloc_mem(size);
1021         if (!t->tid_tab)
1022                 return -ENOMEM;
1023
1024         t->stid_tab = (union listen_entry *)&t->tid_tab[ntids];
1025         t->atid_tab = (union active_open_entry *)&t->stid_tab[nstids];
1026         t->ntids = ntids;
1027         t->nstids = nstids;
1028         t->stid_base = stid_base;
1029         t->sfree = NULL;
1030         t->natids = natids;
1031         t->atid_base = atid_base;
1032         t->afree = NULL;
1033         t->stids_in_use = t->atids_in_use = 0;
1034         atomic_set(&t->tids_in_use, 0);
1035         spin_lock_init(&t->stid_lock);
1036         spin_lock_init(&t->atid_lock);
1037
1038         /*
1039          * Setup the free lists for stid_tab and atid_tab.
1040          */
1041         if (nstids) {
1042                 while (--nstids)
1043                         t->stid_tab[nstids - 1].next = &t->stid_tab[nstids];
1044                 t->sfree = t->stid_tab;
1045         }
1046         if (natids) {
1047                 while (--natids)
1048                         t->atid_tab[natids - 1].next = &t->atid_tab[natids];
1049                 t->afree = t->atid_tab;
1050         }
1051         return 0;
1052 }
1053
1054 static void free_tid_maps(struct tid_info *t)
1055 {
1056         cxgb_free_mem(t->tid_tab);
1057 }
1058
1059 static inline void add_adapter(struct adapter *adap)
1060 {
1061         write_lock_bh(&adapter_list_lock);
1062         list_add_tail(&adap->adapter_list, &adapter_list);
1063         write_unlock_bh(&adapter_list_lock);
1064 }
1065
1066 static inline void remove_adapter(struct adapter *adap)
1067 {
1068         write_lock_bh(&adapter_list_lock);
1069         list_del(&adap->adapter_list);
1070         write_unlock_bh(&adapter_list_lock);
1071 }
1072
1073 int cxgb3_offload_activate(struct adapter *adapter)
1074 {
1075         struct t3cdev *dev = &adapter->tdev;
1076         int natids, err;
1077         struct t3c_data *t;
1078         struct tid_range stid_range, tid_range;
1079         struct mtutab mtutab;
1080         unsigned int l2t_capacity;
1081
1082         t = kcalloc(1, sizeof(*t), GFP_KERNEL);
1083         if (!t)
1084                 return -ENOMEM;
1085
1086         err = -EOPNOTSUPP;
1087         if (dev->ctl(dev, GET_TX_MAX_CHUNK, &t->tx_max_chunk) < 0 ||
1088             dev->ctl(dev, GET_MAX_OUTSTANDING_WR, &t->max_wrs) < 0 ||
1089             dev->ctl(dev, GET_L2T_CAPACITY, &l2t_capacity) < 0 ||
1090             dev->ctl(dev, GET_MTUS, &mtutab) < 0 ||
1091             dev->ctl(dev, GET_TID_RANGE, &tid_range) < 0 ||
1092             dev->ctl(dev, GET_STID_RANGE, &stid_range) < 0)
1093                 goto out_free;
1094
1095         err = -ENOMEM;
1096         L2DATA(dev) = t3_init_l2t(l2t_capacity);
1097         if (!L2DATA(dev))
1098                 goto out_free;
1099
1100         natids = min(tid_range.num / 2, MAX_ATIDS);
1101         err = init_tid_tabs(&t->tid_maps, tid_range.num, natids,
1102                             stid_range.num, ATID_BASE, stid_range.base);
1103         if (err)
1104                 goto out_free_l2t;
1105
1106         t->mtus = mtutab.mtus;
1107         t->nmtus = mtutab.size;
1108
1109         INIT_WORK(&t->tid_release_task, t3_process_tid_release_list);
1110         spin_lock_init(&t->tid_release_lock);
1111         INIT_LIST_HEAD(&t->list_node);
1112         t->dev = dev;
1113
1114         T3C_DATA(dev) = t;
1115         dev->recv = process_rx;
1116         dev->neigh_update = t3_l2t_update;
1117
1118         /* Register netevent handler once */
1119         if (list_empty(&adapter_list))
1120                 register_netevent_notifier(&nb);
1121
1122         add_adapter(adapter);
1123         return 0;
1124
1125 out_free_l2t:
1126         t3_free_l2t(L2DATA(dev));
1127         L2DATA(dev) = NULL;
1128 out_free:
1129         kfree(t);
1130         return err;
1131 }
1132
1133 void cxgb3_offload_deactivate(struct adapter *adapter)
1134 {
1135         struct t3cdev *tdev = &adapter->tdev;
1136         struct t3c_data *t = T3C_DATA(tdev);
1137
1138         remove_adapter(adapter);
1139         if (list_empty(&adapter_list))
1140                 unregister_netevent_notifier(&nb);
1141
1142         free_tid_maps(&t->tid_maps);
1143         T3C_DATA(tdev) = NULL;
1144         t3_free_l2t(L2DATA(tdev));
1145         L2DATA(tdev) = NULL;
1146         kfree(t);
1147 }
1148
1149 static inline void register_tdev(struct t3cdev *tdev)
1150 {
1151         static int unit;
1152
1153         mutex_lock(&cxgb3_db_lock);
1154         snprintf(tdev->name, sizeof(tdev->name), "ofld_dev%d", unit++);
1155         list_add_tail(&tdev->ofld_dev_list, &ofld_dev_list);
1156         mutex_unlock(&cxgb3_db_lock);
1157 }
1158
1159 static inline void unregister_tdev(struct t3cdev *tdev)
1160 {
1161         mutex_lock(&cxgb3_db_lock);
1162         list_del(&tdev->ofld_dev_list);
1163         mutex_unlock(&cxgb3_db_lock);
1164 }
1165
1166 void __devinit cxgb3_adapter_ofld(struct adapter *adapter)
1167 {
1168         struct t3cdev *tdev = &adapter->tdev;
1169
1170         INIT_LIST_HEAD(&tdev->ofld_dev_list);
1171
1172         cxgb3_set_dummy_ops(tdev);
1173         tdev->send = t3_offload_tx;
1174         tdev->ctl = cxgb_offload_ctl;
1175         tdev->type = adapter->params.rev == 0 ? T3A : T3B;
1176
1177         register_tdev(tdev);
1178 }
1179
1180 void __devexit cxgb3_adapter_unofld(struct adapter *adapter)
1181 {
1182         struct t3cdev *tdev = &adapter->tdev;
1183
1184         tdev->recv = NULL;
1185         tdev->neigh_update = NULL;
1186
1187         unregister_tdev(tdev);
1188 }
1189
1190 void __init cxgb3_offload_init(void)
1191 {
1192         int i;
1193
1194         for (i = 0; i < NUM_CPL_CMDS; ++i)
1195                 cpl_handlers[i] = do_bad_cpl;
1196
1197         t3_register_cpl_handler(CPL_SMT_WRITE_RPL, do_smt_write_rpl);
1198         t3_register_cpl_handler(CPL_L2T_WRITE_RPL, do_l2t_write_rpl);
1199         t3_register_cpl_handler(CPL_PASS_OPEN_RPL, do_stid_rpl);
1200         t3_register_cpl_handler(CPL_CLOSE_LISTSRV_RPL, do_stid_rpl);
1201         t3_register_cpl_handler(CPL_PASS_ACCEPT_REQ, do_cr);
1202         t3_register_cpl_handler(CPL_PASS_ESTABLISH, do_hwtid_rpl);
1203         t3_register_cpl_handler(CPL_ABORT_RPL_RSS, do_hwtid_rpl);
1204         t3_register_cpl_handler(CPL_ABORT_RPL, do_hwtid_rpl);
1205         t3_register_cpl_handler(CPL_RX_URG_NOTIFY, do_hwtid_rpl);
1206         t3_register_cpl_handler(CPL_RX_DATA, do_hwtid_rpl);
1207         t3_register_cpl_handler(CPL_TX_DATA_ACK, do_hwtid_rpl);
1208         t3_register_cpl_handler(CPL_TX_DMA_ACK, do_hwtid_rpl);
1209         t3_register_cpl_handler(CPL_ACT_OPEN_RPL, do_act_open_rpl);
1210         t3_register_cpl_handler(CPL_PEER_CLOSE, do_hwtid_rpl);
1211         t3_register_cpl_handler(CPL_CLOSE_CON_RPL, do_hwtid_rpl);
1212         t3_register_cpl_handler(CPL_ABORT_REQ_RSS, do_abort_req_rss);
1213         t3_register_cpl_handler(CPL_ACT_ESTABLISH, do_act_establish);
1214         t3_register_cpl_handler(CPL_SET_TCB_RPL, do_set_tcb_rpl);
1215         t3_register_cpl_handler(CPL_RDMA_TERMINATE, do_term);
1216         t3_register_cpl_handler(CPL_RDMA_EC_STATUS, do_hwtid_rpl);
1217         t3_register_cpl_handler(CPL_TRACE_PKT, do_trace);
1218         t3_register_cpl_handler(CPL_RX_DATA_DDP, do_hwtid_rpl);
1219         t3_register_cpl_handler(CPL_RX_DDP_COMPLETE, do_hwtid_rpl);
1220         t3_register_cpl_handler(CPL_ISCSI_HDR, do_hwtid_rpl);
1221 }