linux/drivers/infiniband/hw/i40iw/i40iw_hw.c
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   1/*******************************************************************************
   2*
   3* Copyright (c) 2015-2016 Intel Corporation.  All rights reserved.
   4*
   5* This software is available to you under a choice of one of two
   6* licenses.  You may choose to be licensed under the terms of the GNU
   7* General Public License (GPL) Version 2, available from the file
   8* COPYING in the main directory of this source tree, or the
   9* OpenFabrics.org BSD license below:
  10*
  11*   Redistribution and use in source and binary forms, with or
  12*   without modification, are permitted provided that the following
  13*   conditions are met:
  14*
  15*    - Redistributions of source code must retain the above
  16*       copyright notice, this list of conditions and the following
  17*       disclaimer.
  18*
  19*    - Redistributions in binary form must reproduce the above
  20*       copyright notice, this list of conditions and the following
  21*       disclaimer in the documentation and/or other materials
  22*       provided with the distribution.
  23*
  24* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  27* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  28* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  29* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  30* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  31* SOFTWARE.
  32*
  33*******************************************************************************/
  34
  35#include <linux/module.h>
  36#include <linux/moduleparam.h>
  37#include <linux/netdevice.h>
  38#include <linux/etherdevice.h>
  39#include <linux/ip.h>
  40#include <linux/tcp.h>
  41#include <linux/if_vlan.h>
  42
  43#include "i40iw.h"
  44
  45/**
  46 * i40iw_initialize_hw_resources - initialize hw resource during open
  47 * @iwdev: iwarp device
  48 */
  49u32 i40iw_initialize_hw_resources(struct i40iw_device *iwdev)
  50{
  51        unsigned long num_pds;
  52        u32 resources_size;
  53        u32 max_mr;
  54        u32 max_qp;
  55        u32 max_cq;
  56        u32 arp_table_size;
  57        u32 mrdrvbits;
  58        void *resource_ptr;
  59
  60        max_qp = iwdev->sc_dev.hmc_info->hmc_obj[I40IW_HMC_IW_QP].cnt;
  61        max_cq = iwdev->sc_dev.hmc_info->hmc_obj[I40IW_HMC_IW_CQ].cnt;
  62        max_mr = iwdev->sc_dev.hmc_info->hmc_obj[I40IW_HMC_IW_MR].cnt;
  63        arp_table_size = iwdev->sc_dev.hmc_info->hmc_obj[I40IW_HMC_IW_ARP].cnt;
  64        iwdev->max_cqe = 0xFFFFF;
  65        num_pds = max_qp * 4;
  66        resources_size = sizeof(struct i40iw_arp_entry) * arp_table_size;
  67        resources_size += sizeof(unsigned long) * BITS_TO_LONGS(max_qp);
  68        resources_size += sizeof(unsigned long) * BITS_TO_LONGS(max_mr);
  69        resources_size += sizeof(unsigned long) * BITS_TO_LONGS(max_cq);
  70        resources_size += sizeof(unsigned long) * BITS_TO_LONGS(num_pds);
  71        resources_size += sizeof(unsigned long) * BITS_TO_LONGS(arp_table_size);
  72        resources_size += sizeof(struct i40iw_qp **) * max_qp;
  73        iwdev->mem_resources = kzalloc(resources_size, GFP_KERNEL);
  74
  75        if (!iwdev->mem_resources)
  76                return -ENOMEM;
  77
  78        iwdev->max_qp = max_qp;
  79        iwdev->max_mr = max_mr;
  80        iwdev->max_cq = max_cq;
  81        iwdev->max_pd = num_pds;
  82        iwdev->arp_table_size = arp_table_size;
  83        iwdev->arp_table = (struct i40iw_arp_entry *)iwdev->mem_resources;
  84        resource_ptr = iwdev->mem_resources + (sizeof(struct i40iw_arp_entry) * arp_table_size);
  85
  86        iwdev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY |
  87            IB_DEVICE_MEM_WINDOW | IB_DEVICE_MEM_MGT_EXTENSIONS;
  88
  89        iwdev->allocated_qps = resource_ptr;
  90        iwdev->allocated_cqs = &iwdev->allocated_qps[BITS_TO_LONGS(max_qp)];
  91        iwdev->allocated_mrs = &iwdev->allocated_cqs[BITS_TO_LONGS(max_cq)];
  92        iwdev->allocated_pds = &iwdev->allocated_mrs[BITS_TO_LONGS(max_mr)];
  93        iwdev->allocated_arps = &iwdev->allocated_pds[BITS_TO_LONGS(num_pds)];
  94        iwdev->qp_table = (struct i40iw_qp **)(&iwdev->allocated_arps[BITS_TO_LONGS(arp_table_size)]);
  95        set_bit(0, iwdev->allocated_mrs);
  96        set_bit(0, iwdev->allocated_qps);
  97        set_bit(0, iwdev->allocated_cqs);
  98        set_bit(0, iwdev->allocated_pds);
  99        set_bit(0, iwdev->allocated_arps);
 100
 101        /* Following for ILQ/IEQ */
 102        set_bit(1, iwdev->allocated_qps);
 103        set_bit(1, iwdev->allocated_cqs);
 104        set_bit(1, iwdev->allocated_pds);
 105        set_bit(2, iwdev->allocated_cqs);
 106        set_bit(2, iwdev->allocated_pds);
 107
 108        spin_lock_init(&iwdev->resource_lock);
 109        mrdrvbits = 24 - get_count_order(iwdev->max_mr);
 110        iwdev->mr_stagmask = ~(((1 << mrdrvbits) - 1) << (32 - mrdrvbits));
 111        return 0;
 112}
 113
 114/**
 115 * i40iw_cqp_ce_handler - handle cqp completions
 116 * @iwdev: iwarp device
 117 * @arm: flag to arm after completions
 118 * @cq: cq for cqp completions
 119 */
 120static void i40iw_cqp_ce_handler(struct i40iw_device *iwdev, struct i40iw_sc_cq *cq, bool arm)
 121{
 122        struct i40iw_cqp_request *cqp_request;
 123        struct i40iw_sc_dev *dev = &iwdev->sc_dev;
 124        u32 cqe_count = 0;
 125        struct i40iw_ccq_cqe_info info;
 126        int ret;
 127
 128        do {
 129                memset(&info, 0, sizeof(info));
 130                ret = dev->ccq_ops->ccq_get_cqe_info(cq, &info);
 131                if (ret)
 132                        break;
 133                cqp_request = (struct i40iw_cqp_request *)(unsigned long)info.scratch;
 134                if (info.error)
 135                        i40iw_pr_err("opcode = 0x%x maj_err_code = 0x%x min_err_code = 0x%x\n",
 136                                     info.op_code, info.maj_err_code, info.min_err_code);
 137                if (cqp_request) {
 138                        cqp_request->compl_info.maj_err_code = info.maj_err_code;
 139                        cqp_request->compl_info.min_err_code = info.min_err_code;
 140                        cqp_request->compl_info.op_ret_val = info.op_ret_val;
 141                        cqp_request->compl_info.error = info.error;
 142
 143                        if (cqp_request->waiting) {
 144                                cqp_request->request_done = true;
 145                                wake_up(&cqp_request->waitq);
 146                                i40iw_put_cqp_request(&iwdev->cqp, cqp_request);
 147                        } else {
 148                                if (cqp_request->callback_fcn)
 149                                        cqp_request->callback_fcn(cqp_request, 1);
 150                                i40iw_put_cqp_request(&iwdev->cqp, cqp_request);
 151                        }
 152                }
 153
 154                cqe_count++;
 155        } while (1);
 156
 157        if (arm && cqe_count) {
 158                i40iw_process_bh(dev);
 159                dev->ccq_ops->ccq_arm(cq);
 160        }
 161}
 162
 163/**
 164 * i40iw_iwarp_ce_handler - handle iwarp completions
 165 * @iwdev: iwarp device
 166 * @iwcp: iwarp cq receiving event
 167 */
 168static void i40iw_iwarp_ce_handler(struct i40iw_device *iwdev,
 169                                   struct i40iw_sc_cq *iwcq)
 170{
 171        struct i40iw_cq *i40iwcq = iwcq->back_cq;
 172
 173        if (i40iwcq->ibcq.comp_handler)
 174                i40iwcq->ibcq.comp_handler(&i40iwcq->ibcq,
 175                                           i40iwcq->ibcq.cq_context);
 176}
 177
 178/**
 179 * i40iw_puda_ce_handler - handle puda completion events
 180 * @iwdev: iwarp device
 181 * @cq: puda completion q for event
 182 */
 183static void i40iw_puda_ce_handler(struct i40iw_device *iwdev,
 184                                  struct i40iw_sc_cq *cq)
 185{
 186        struct i40iw_sc_dev *dev = (struct i40iw_sc_dev *)&iwdev->sc_dev;
 187        enum i40iw_status_code status;
 188        u32 compl_error;
 189
 190        do {
 191                status = i40iw_puda_poll_completion(dev, cq, &compl_error);
 192                if (status == I40IW_ERR_QUEUE_EMPTY)
 193                        break;
 194                if (status) {
 195                        i40iw_pr_err("puda  status = %d\n", status);
 196                        break;
 197                }
 198                if (compl_error) {
 199                        i40iw_pr_err("puda compl_err  =0x%x\n", compl_error);
 200                        break;
 201                }
 202        } while (1);
 203
 204        dev->ccq_ops->ccq_arm(cq);
 205}
 206
 207/**
 208 * i40iw_process_ceq - handle ceq for completions
 209 * @iwdev: iwarp device
 210 * @ceq: ceq having cq for completion
 211 */
 212void i40iw_process_ceq(struct i40iw_device *iwdev, struct i40iw_ceq *ceq)
 213{
 214        struct i40iw_sc_dev *dev = &iwdev->sc_dev;
 215        struct i40iw_sc_ceq *sc_ceq;
 216        struct i40iw_sc_cq *cq;
 217        bool arm = true;
 218
 219        sc_ceq = &ceq->sc_ceq;
 220        do {
 221                cq = dev->ceq_ops->process_ceq(dev, sc_ceq);
 222                if (!cq)
 223                        break;
 224
 225                if (cq->cq_type == I40IW_CQ_TYPE_CQP)
 226                        i40iw_cqp_ce_handler(iwdev, cq, arm);
 227                else if (cq->cq_type == I40IW_CQ_TYPE_IWARP)
 228                        i40iw_iwarp_ce_handler(iwdev, cq);
 229                else if ((cq->cq_type == I40IW_CQ_TYPE_ILQ) ||
 230                         (cq->cq_type == I40IW_CQ_TYPE_IEQ))
 231                        i40iw_puda_ce_handler(iwdev, cq);
 232        } while (1);
 233}
 234
 235/**
 236 * i40iw_next_iw_state - modify qp state
 237 * @iwqp: iwarp qp to modify
 238 * @state: next state for qp
 239 * @del_hash: del hash
 240 * @term: term message
 241 * @termlen: length of term message
 242 */
 243void i40iw_next_iw_state(struct i40iw_qp *iwqp,
 244                         u8 state,
 245                         u8 del_hash,
 246                         u8 term,
 247                         u8 termlen)
 248{
 249        struct i40iw_modify_qp_info info;
 250
 251        memset(&info, 0, sizeof(info));
 252        info.next_iwarp_state = state;
 253        info.remove_hash_idx = del_hash;
 254        info.cq_num_valid = true;
 255        info.arp_cache_idx_valid = true;
 256        info.dont_send_term = true;
 257        info.dont_send_fin = true;
 258        info.termlen = termlen;
 259
 260        if (term & I40IWQP_TERM_SEND_TERM_ONLY)
 261                info.dont_send_term = false;
 262        if (term & I40IWQP_TERM_SEND_FIN_ONLY)
 263                info.dont_send_fin = false;
 264        if (iwqp->sc_qp.term_flags && (state == I40IW_QP_STATE_ERROR))
 265                info.reset_tcp_conn = true;
 266        i40iw_hw_modify_qp(iwqp->iwdev, iwqp, &info, 0);
 267}
 268
 269/**
 270 * i40iw_process_aeq - handle aeq events
 271 * @iwdev: iwarp device
 272 */
 273void i40iw_process_aeq(struct i40iw_device *iwdev)
 274{
 275        struct i40iw_sc_dev *dev = &iwdev->sc_dev;
 276        struct i40iw_aeq *aeq = &iwdev->aeq;
 277        struct i40iw_sc_aeq *sc_aeq = &aeq->sc_aeq;
 278        struct i40iw_aeqe_info aeinfo;
 279        struct i40iw_aeqe_info *info = &aeinfo;
 280        int ret;
 281        struct i40iw_qp *iwqp = NULL;
 282        struct i40iw_sc_cq *cq = NULL;
 283        struct i40iw_cq *iwcq = NULL;
 284        struct i40iw_sc_qp *qp = NULL;
 285        struct i40iw_qp_host_ctx_info *ctx_info = NULL;
 286        unsigned long flags;
 287
 288        u32 aeqcnt = 0;
 289
 290        if (!sc_aeq->size)
 291                return;
 292
 293        do {
 294                memset(info, 0, sizeof(*info));
 295                ret = dev->aeq_ops->get_next_aeqe(sc_aeq, info);
 296                if (ret)
 297                        break;
 298
 299                aeqcnt++;
 300                i40iw_debug(dev, I40IW_DEBUG_AEQ,
 301                            "%s ae_id = 0x%x bool qp=%d qp_id = %d\n",
 302                            __func__, info->ae_id, info->qp, info->qp_cq_id);
 303                if (info->qp) {
 304                        iwqp = iwdev->qp_table[info->qp_cq_id];
 305                        if (!iwqp) {
 306                                i40iw_pr_err("qp_id %d is already freed\n", info->qp_cq_id);
 307                                continue;
 308                        }
 309                        qp = &iwqp->sc_qp;
 310                        spin_lock_irqsave(&iwqp->lock, flags);
 311                        iwqp->hw_tcp_state = info->tcp_state;
 312                        iwqp->hw_iwarp_state = info->iwarp_state;
 313                        iwqp->last_aeq = info->ae_id;
 314                        spin_unlock_irqrestore(&iwqp->lock, flags);
 315                        ctx_info = &iwqp->ctx_info;
 316                        ctx_info->err_rq_idx_valid = true;
 317                } else {
 318                        if (info->ae_id != I40IW_AE_CQ_OPERATION_ERROR)
 319                                continue;
 320                }
 321
 322                switch (info->ae_id) {
 323                case I40IW_AE_LLP_FIN_RECEIVED:
 324                        if (qp->term_flags)
 325                                continue;
 326                        if (atomic_inc_return(&iwqp->close_timer_started) == 1) {
 327                                iwqp->hw_tcp_state = I40IW_TCP_STATE_CLOSE_WAIT;
 328                                if ((iwqp->hw_tcp_state == I40IW_TCP_STATE_CLOSE_WAIT) &&
 329                                    (iwqp->ibqp_state == IB_QPS_RTS)) {
 330                                        i40iw_next_iw_state(iwqp,
 331                                                            I40IW_QP_STATE_CLOSING, 0, 0, 0);
 332                                        i40iw_cm_disconn(iwqp);
 333                                }
 334                                iwqp->cm_id->add_ref(iwqp->cm_id);
 335                                i40iw_schedule_cm_timer(iwqp->cm_node,
 336                                                        (struct i40iw_puda_buf *)iwqp,
 337                                                        I40IW_TIMER_TYPE_CLOSE, 1, 0);
 338                        }
 339                        break;
 340                case I40IW_AE_LLP_CLOSE_COMPLETE:
 341                        if (qp->term_flags)
 342                                i40iw_terminate_done(qp, 0);
 343                        else
 344                                i40iw_cm_disconn(iwqp);
 345                        break;
 346                case I40IW_AE_RESET_SENT:
 347                        i40iw_next_iw_state(iwqp, I40IW_QP_STATE_ERROR, 1, 0, 0);
 348                        i40iw_cm_disconn(iwqp);
 349                        break;
 350                case I40IW_AE_LLP_CONNECTION_RESET:
 351                        if (atomic_read(&iwqp->close_timer_started))
 352                                continue;
 353                        i40iw_cm_disconn(iwqp);
 354                        break;
 355                case I40IW_AE_TERMINATE_SENT:
 356                        i40iw_terminate_send_fin(qp);
 357                        break;
 358                case I40IW_AE_LLP_TERMINATE_RECEIVED:
 359                        i40iw_terminate_received(qp, info);
 360                        break;
 361                case I40IW_AE_CQ_OPERATION_ERROR:
 362                        i40iw_pr_err("Processing an iWARP related AE for CQ misc = 0x%04X\n",
 363                                     info->ae_id);
 364                        cq = (struct i40iw_sc_cq *)(unsigned long)info->compl_ctx;
 365                        iwcq = (struct i40iw_cq *)cq->back_cq;
 366
 367                        if (iwcq->ibcq.event_handler) {
 368                                struct ib_event ibevent;
 369
 370                                ibevent.device = iwcq->ibcq.device;
 371                                ibevent.event = IB_EVENT_CQ_ERR;
 372                                ibevent.element.cq = &iwcq->ibcq;
 373                                iwcq->ibcq.event_handler(&ibevent, iwcq->ibcq.cq_context);
 374                        }
 375                        break;
 376                case I40IW_AE_PRIV_OPERATION_DENIED:
 377                case I40IW_AE_STAG_ZERO_INVALID:
 378                case I40IW_AE_IB_RREQ_AND_Q1_FULL:
 379                case I40IW_AE_DDP_UBE_INVALID_DDP_VERSION:
 380                case I40IW_AE_DDP_UBE_INVALID_MO:
 381                case I40IW_AE_DDP_UBE_INVALID_QN:
 382                case I40IW_AE_DDP_NO_L_BIT:
 383                case I40IW_AE_RDMAP_ROE_INVALID_RDMAP_VERSION:
 384                case I40IW_AE_RDMAP_ROE_UNEXPECTED_OPCODE:
 385                case I40IW_AE_ROE_INVALID_RDMA_READ_REQUEST:
 386                case I40IW_AE_ROE_INVALID_RDMA_WRITE_OR_READ_RESP:
 387                case I40IW_AE_INVALID_ARP_ENTRY:
 388                case I40IW_AE_INVALID_TCP_OPTION_RCVD:
 389                case I40IW_AE_STALE_ARP_ENTRY:
 390                case I40IW_AE_LLP_RECEIVED_MPA_CRC_ERROR:
 391                case I40IW_AE_LLP_SEGMENT_TOO_SMALL:
 392                case I40IW_AE_LLP_SYN_RECEIVED:
 393                case I40IW_AE_LLP_TOO_MANY_RETRIES:
 394                case I40IW_AE_LLP_DOUBT_REACHABILITY:
 395                case I40IW_AE_LCE_QP_CATASTROPHIC:
 396                case I40IW_AE_LCE_FUNCTION_CATASTROPHIC:
 397                case I40IW_AE_LCE_CQ_CATASTROPHIC:
 398                case I40IW_AE_UDA_XMIT_DGRAM_TOO_LONG:
 399                case I40IW_AE_UDA_XMIT_IPADDR_MISMATCH:
 400                case I40IW_AE_QP_SUSPEND_COMPLETE:
 401                        ctx_info->err_rq_idx_valid = false;
 402                default:
 403                                if (!info->sq && ctx_info->err_rq_idx_valid) {
 404                                        ctx_info->err_rq_idx = info->wqe_idx;
 405                                        ctx_info->tcp_info_valid = false;
 406                                        ctx_info->iwarp_info_valid = false;
 407                                        ret = dev->iw_priv_qp_ops->qp_setctx(&iwqp->sc_qp,
 408                                                                             iwqp->host_ctx.va,
 409                                                                             ctx_info);
 410                                }
 411                                i40iw_terminate_connection(qp, info);
 412                                break;
 413                }
 414        } while (1);
 415
 416        if (aeqcnt)
 417                dev->aeq_ops->repost_aeq_entries(dev, aeqcnt);
 418}
 419
 420/**
 421 * i40iw_manage_apbvt - add or delete tcp port
 422 * @iwdev: iwarp device
 423 * @accel_local_port: port for apbvt
 424 * @add_port: add or delete port
 425 */
 426int i40iw_manage_apbvt(struct i40iw_device *iwdev, u16 accel_local_port, bool add_port)
 427{
 428        struct i40iw_apbvt_info *info;
 429        enum i40iw_status_code status;
 430        struct i40iw_cqp_request *cqp_request;
 431        struct cqp_commands_info *cqp_info;
 432
 433        cqp_request = i40iw_get_cqp_request(&iwdev->cqp, add_port);
 434        if (!cqp_request)
 435                return -ENOMEM;
 436
 437        cqp_info = &cqp_request->info;
 438        info = &cqp_info->in.u.manage_apbvt_entry.info;
 439
 440        memset(info, 0, sizeof(*info));
 441        info->add = add_port;
 442        info->port = cpu_to_le16(accel_local_port);
 443
 444        cqp_info->cqp_cmd = OP_MANAGE_APBVT_ENTRY;
 445        cqp_info->post_sq = 1;
 446        cqp_info->in.u.manage_apbvt_entry.cqp = &iwdev->cqp.sc_cqp;
 447        cqp_info->in.u.manage_apbvt_entry.scratch = (uintptr_t)cqp_request;
 448        status = i40iw_handle_cqp_op(iwdev, cqp_request);
 449        if (status)
 450                i40iw_pr_err("CQP-OP Manage APBVT entry fail");
 451        return status;
 452}
 453
 454/**
 455 * i40iw_manage_arp_cache - manage hw arp cache
 456 * @iwdev: iwarp device
 457 * @mac_addr: mac address ptr
 458 * @ip_addr: ip addr for arp cache
 459 * @action: add, delete or modify
 460 */
 461void i40iw_manage_arp_cache(struct i40iw_device *iwdev,
 462                            unsigned char *mac_addr,
 463                            __be32 *ip_addr,
 464                            bool ipv4,
 465                            u32 action)
 466{
 467        struct i40iw_add_arp_cache_entry_info *info;
 468        struct i40iw_cqp_request *cqp_request;
 469        struct cqp_commands_info *cqp_info;
 470        int arp_index;
 471
 472        arp_index = i40iw_arp_table(iwdev, ip_addr, ipv4, mac_addr, action);
 473        if (arp_index == -1)
 474                return;
 475        cqp_request = i40iw_get_cqp_request(&iwdev->cqp, false);
 476        if (!cqp_request)
 477                return;
 478
 479        cqp_info = &cqp_request->info;
 480        if (action == I40IW_ARP_ADD) {
 481                cqp_info->cqp_cmd = OP_ADD_ARP_CACHE_ENTRY;
 482                info = &cqp_info->in.u.add_arp_cache_entry.info;
 483                memset(info, 0, sizeof(*info));
 484                info->arp_index = cpu_to_le32(arp_index);
 485                info->permanent = true;
 486                ether_addr_copy(info->mac_addr, mac_addr);
 487                cqp_info->in.u.add_arp_cache_entry.scratch = (uintptr_t)cqp_request;
 488                cqp_info->in.u.add_arp_cache_entry.cqp = &iwdev->cqp.sc_cqp;
 489        } else {
 490                cqp_info->cqp_cmd = OP_DELETE_ARP_CACHE_ENTRY;
 491                cqp_info->in.u.del_arp_cache_entry.scratch = (uintptr_t)cqp_request;
 492                cqp_info->in.u.del_arp_cache_entry.cqp = &iwdev->cqp.sc_cqp;
 493                cqp_info->in.u.del_arp_cache_entry.arp_index = arp_index;
 494        }
 495
 496        cqp_info->in.u.add_arp_cache_entry.cqp = &iwdev->cqp.sc_cqp;
 497        cqp_info->in.u.add_arp_cache_entry.scratch = (uintptr_t)cqp_request;
 498        cqp_info->post_sq = 1;
 499        if (i40iw_handle_cqp_op(iwdev, cqp_request))
 500                i40iw_pr_err("CQP-OP Add/Del Arp Cache entry fail");
 501}
 502
 503/**
 504 * i40iw_send_syn_cqp_callback - do syn/ack after qhash
 505 * @cqp_request: qhash cqp completion
 506 * @send_ack: flag send ack
 507 */
 508static void i40iw_send_syn_cqp_callback(struct i40iw_cqp_request *cqp_request, u32 send_ack)
 509{
 510        i40iw_send_syn(cqp_request->param, send_ack);
 511}
 512
 513/**
 514 * i40iw_manage_qhash - add or modify qhash
 515 * @iwdev: iwarp device
 516 * @cminfo: cm info for qhash
 517 * @etype: type (syn or quad)
 518 * @mtype: type of qhash
 519 * @cmnode: cmnode associated with connection
 520 * @wait: wait for completion
 521 * @user_pri:user pri of the connection
 522 */
 523enum i40iw_status_code i40iw_manage_qhash(struct i40iw_device *iwdev,
 524                                          struct i40iw_cm_info *cminfo,
 525                                          enum i40iw_quad_entry_type etype,
 526                                          enum i40iw_quad_hash_manage_type mtype,
 527                                          void *cmnode,
 528                                          bool wait)
 529{
 530        struct i40iw_qhash_table_info *info;
 531        struct i40iw_sc_dev *dev = &iwdev->sc_dev;
 532        enum i40iw_status_code status;
 533        struct i40iw_cqp *iwcqp = &iwdev->cqp;
 534        struct i40iw_cqp_request *cqp_request;
 535        struct cqp_commands_info *cqp_info;
 536
 537        cqp_request = i40iw_get_cqp_request(iwcqp, wait);
 538        if (!cqp_request)
 539                return I40IW_ERR_NO_MEMORY;
 540        cqp_info = &cqp_request->info;
 541        info = &cqp_info->in.u.manage_qhash_table_entry.info;
 542        memset(info, 0, sizeof(*info));
 543
 544        info->manage = mtype;
 545        info->entry_type = etype;
 546        if (cminfo->vlan_id != 0xFFFF) {
 547                info->vlan_valid = true;
 548                info->vlan_id = cpu_to_le16(cminfo->vlan_id);
 549        } else {
 550                info->vlan_valid = false;
 551        }
 552
 553        info->ipv4_valid = cminfo->ipv4;
 554        ether_addr_copy(info->mac_addr, iwdev->netdev->dev_addr);
 555        info->qp_num = cpu_to_le32(dev->ilq->qp_id);
 556        info->dest_port = cpu_to_le16(cminfo->loc_port);
 557        info->dest_ip[0] = cpu_to_le32(cminfo->loc_addr[0]);
 558        info->dest_ip[1] = cpu_to_le32(cminfo->loc_addr[1]);
 559        info->dest_ip[2] = cpu_to_le32(cminfo->loc_addr[2]);
 560        info->dest_ip[3] = cpu_to_le32(cminfo->loc_addr[3]);
 561        if (etype == I40IW_QHASH_TYPE_TCP_ESTABLISHED) {
 562                info->src_port = cpu_to_le16(cminfo->rem_port);
 563                info->src_ip[0] = cpu_to_le32(cminfo->rem_addr[0]);
 564                info->src_ip[1] = cpu_to_le32(cminfo->rem_addr[1]);
 565                info->src_ip[2] = cpu_to_le32(cminfo->rem_addr[2]);
 566                info->src_ip[3] = cpu_to_le32(cminfo->rem_addr[3]);
 567        }
 568        if (cmnode) {
 569                cqp_request->callback_fcn = i40iw_send_syn_cqp_callback;
 570                cqp_request->param = (void *)cmnode;
 571        }
 572
 573        if (info->ipv4_valid)
 574                i40iw_debug(dev, I40IW_DEBUG_CM,
 575                            "%s:%s IP=%pI4, port=%d, mac=%pM, vlan_id=%d\n",
 576                            __func__, (!mtype) ? "DELETE" : "ADD",
 577                            info->dest_ip,
 578                            info->dest_port, info->mac_addr, cminfo->vlan_id);
 579        else
 580                i40iw_debug(dev, I40IW_DEBUG_CM,
 581                            "%s:%s IP=%pI6, port=%d, mac=%pM, vlan_id=%d\n",
 582                            __func__, (!mtype) ? "DELETE" : "ADD",
 583                            info->dest_ip,
 584                            info->dest_port, info->mac_addr, cminfo->vlan_id);
 585        cqp_info->in.u.manage_qhash_table_entry.cqp = &iwdev->cqp.sc_cqp;
 586        cqp_info->in.u.manage_qhash_table_entry.scratch = (uintptr_t)cqp_request;
 587        cqp_info->cqp_cmd = OP_MANAGE_QHASH_TABLE_ENTRY;
 588        cqp_info->post_sq = 1;
 589        status = i40iw_handle_cqp_op(iwdev, cqp_request);
 590        if (status)
 591                i40iw_pr_err("CQP-OP Manage Qhash Entry fail");
 592        return status;
 593}
 594
 595/**
 596 * i40iw_hw_flush_wqes - flush qp's wqe
 597 * @iwdev: iwarp device
 598 * @qp: hardware control qp
 599 * @info: info for flush
 600 * @wait: flag wait for completion
 601 */
 602enum i40iw_status_code i40iw_hw_flush_wqes(struct i40iw_device *iwdev,
 603                                           struct i40iw_sc_qp *qp,
 604                                           struct i40iw_qp_flush_info *info,
 605                                           bool wait)
 606{
 607        enum i40iw_status_code status;
 608        struct i40iw_qp_flush_info *hw_info;
 609        struct i40iw_cqp_request *cqp_request;
 610        struct cqp_commands_info *cqp_info;
 611
 612        cqp_request = i40iw_get_cqp_request(&iwdev->cqp, wait);
 613        if (!cqp_request)
 614                return I40IW_ERR_NO_MEMORY;
 615
 616        cqp_info = &cqp_request->info;
 617        hw_info = &cqp_request->info.in.u.qp_flush_wqes.info;
 618        memcpy(hw_info, info, sizeof(*hw_info));
 619
 620        cqp_info->cqp_cmd = OP_QP_FLUSH_WQES;
 621        cqp_info->post_sq = 1;
 622        cqp_info->in.u.qp_flush_wqes.qp = qp;
 623        cqp_info->in.u.qp_flush_wqes.scratch = (uintptr_t)cqp_request;
 624        status = i40iw_handle_cqp_op(iwdev, cqp_request);
 625        if (status)
 626                i40iw_pr_err("CQP-OP Flush WQE's fail");
 627        return status;
 628}
 629
 630/**
 631 * i40iw_hw_manage_vf_pble_bp - manage vf pbles
 632 * @iwdev: iwarp device
 633 * @info: info for managing pble
 634 * @wait: flag wait for completion
 635 */
 636enum i40iw_status_code i40iw_hw_manage_vf_pble_bp(struct i40iw_device *iwdev,
 637                                                  struct i40iw_manage_vf_pble_info *info,
 638                                                  bool wait)
 639{
 640        enum i40iw_status_code status;
 641        struct i40iw_manage_vf_pble_info *hw_info;
 642        struct i40iw_cqp_request *cqp_request;
 643        struct cqp_commands_info *cqp_info;
 644
 645        if ((iwdev->init_state < CCQ_CREATED) && wait)
 646                wait = false;
 647
 648        cqp_request = i40iw_get_cqp_request(&iwdev->cqp, wait);
 649        if (!cqp_request)
 650                return I40IW_ERR_NO_MEMORY;
 651
 652        cqp_info = &cqp_request->info;
 653        hw_info = &cqp_request->info.in.u.manage_vf_pble_bp.info;
 654        memcpy(hw_info, info, sizeof(*hw_info));
 655
 656        cqp_info->cqp_cmd = OP_MANAGE_VF_PBLE_BP;
 657        cqp_info->post_sq = 1;
 658        cqp_info->in.u.manage_vf_pble_bp.cqp = &iwdev->cqp.sc_cqp;
 659        cqp_info->in.u.manage_vf_pble_bp.scratch = (uintptr_t)cqp_request;
 660        status = i40iw_handle_cqp_op(iwdev, cqp_request);
 661        if (status)
 662                i40iw_pr_err("CQP-OP Manage VF pble_bp fail");
 663        return status;
 664}
 665
 666/**
 667 * i40iw_get_ib_wc - return change flush code to IB's
 668 * @opcode: iwarp flush code
 669 */
 670static enum ib_wc_status i40iw_get_ib_wc(enum i40iw_flush_opcode opcode)
 671{
 672        switch (opcode) {
 673        case FLUSH_PROT_ERR:
 674                return IB_WC_LOC_PROT_ERR;
 675        case FLUSH_REM_ACCESS_ERR:
 676                return IB_WC_REM_ACCESS_ERR;
 677        case FLUSH_LOC_QP_OP_ERR:
 678                return IB_WC_LOC_QP_OP_ERR;
 679        case FLUSH_REM_OP_ERR:
 680                return IB_WC_REM_OP_ERR;
 681        case FLUSH_LOC_LEN_ERR:
 682                return IB_WC_LOC_LEN_ERR;
 683        case FLUSH_GENERAL_ERR:
 684                return IB_WC_GENERAL_ERR;
 685        case FLUSH_FATAL_ERR:
 686        default:
 687                return IB_WC_FATAL_ERR;
 688        }
 689}
 690
 691/**
 692 * i40iw_set_flush_info - set flush info
 693 * @pinfo: set flush info
 694 * @min: minor err
 695 * @maj: major err
 696 * @opcode: flush error code
 697 */
 698static void i40iw_set_flush_info(struct i40iw_qp_flush_info *pinfo,
 699                                 u16 *min,
 700                                 u16 *maj,
 701                                 enum i40iw_flush_opcode opcode)
 702{
 703        *min = (u16)i40iw_get_ib_wc(opcode);
 704        *maj = CQE_MAJOR_DRV;
 705        pinfo->userflushcode = true;
 706}
 707
 708/**
 709 * i40iw_flush_wqes - flush wqe for qp
 710 * @iwdev: iwarp device
 711 * @iwqp: qp to flush wqes
 712 */
 713void i40iw_flush_wqes(struct i40iw_device *iwdev, struct i40iw_qp *iwqp)
 714{
 715        struct i40iw_qp_flush_info info;
 716        struct i40iw_qp_flush_info *pinfo = &info;
 717
 718        struct i40iw_sc_qp *qp = &iwqp->sc_qp;
 719
 720        memset(pinfo, 0, sizeof(*pinfo));
 721        info.sq = true;
 722        info.rq = true;
 723        if (qp->term_flags) {
 724                i40iw_set_flush_info(pinfo, &pinfo->sq_minor_code,
 725                                     &pinfo->sq_major_code, qp->flush_code);
 726                i40iw_set_flush_info(pinfo, &pinfo->rq_minor_code,
 727                                     &pinfo->rq_major_code, qp->flush_code);
 728        }
 729        (void)i40iw_hw_flush_wqes(iwdev, &iwqp->sc_qp, &info, true);
 730}
 731