lio_rss.c

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    1 /*
    2  *   BSD LICENSE
    3  *
    4  *   Copyright(c) 2017 Cavium, Inc.. All rights reserved.
    5  *   All rights reserved.
    6  *
    7  *   Redistribution and use in source and binary forms, with or without
    8  *   modification, are permitted provided that the following conditions
    9  *   are met:
   10  *
   11  *     * Redistributions of source code must retain the above copyright
   12  *       notice, this list of conditions and the following disclaimer.
   13  *     * Redistributions in binary form must reproduce the above copyright
   14  *       notice, this list of conditions and the following disclaimer in
   15  *       the documentation and/or other materials provided with the
   16  *       distribution.
   17  *     * Neither the name of Cavium, Inc. nor the names of its
   18  *       contributors may be used to endorse or promote products derived
   19  *       from this software without specific prior written permission.
   20  *
   21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   25  *   OWNER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   32  */
   33 /*$FreeBSD$*/
   34 
   35 #ifdef RSS
   36 
   37 #include "lio_bsd.h"
   38 #include "lio_common.h"
   39 #include "lio_droq.h"
   40 #include "lio_iq.h"
   41 #include "lio_response_manager.h"
   42 #include "lio_device.h"
   43 #include "lio_ctrl.h"
   44 #include "lio_main.h"
   45 #include "lio_network.h"
   46 #include "lio_rss.h"
   47 
   48 int     lio_send_rss_param(struct lio *lio);
   49 
   50 static void
   51 lio_set_rss_callback(struct octeon_device *oct, uint32_t status, void *arg)
   52 {
   53         struct lio_soft_command *sc = (struct lio_soft_command *)arg;
   54 
   55         if (status)
   56                 lio_dev_err(oct, "Failed to SET RSS params\n");
   57         else
   58                 lio_dev_info(oct, "SET RSS params\n");
   59 
   60         lio_free_soft_command(oct, sc);
   61 }
   62 
   63 static void
   64 lio_set_rss_info(struct lio *lio)
   65 {
   66         struct octeon_device            *oct = lio->oct_dev;
   67         struct lio_rss_params_set       *rss_set = &lio->rss_set;
   68         uint32_t        rss_hash_config;
   69         int             i;
   70         uint8_t         queue_id;
   71 
   72         for (i = 0; i < LIO_RSS_TABLE_SZ; i++) {
   73                 queue_id = rss_get_indirection_to_bucket(i);
   74                 queue_id = queue_id % oct->num_oqs;
   75                 rss_set->fw_itable[i] = queue_id;
   76         }
   77 
   78         rss_hash_config = rss_gethashconfig();
   79         if (rss_hash_config & RSS_HASHTYPE_RSS_IPV4)
   80                 rss_set->hashinfo |= LIO_RSS_HASH_IPV4;
   81 
   82         if (rss_hash_config & RSS_HASHTYPE_RSS_TCP_IPV4)
   83                 rss_set->hashinfo |= LIO_RSS_HASH_TCP_IPV4;
   84 
   85         if (rss_hash_config & RSS_HASHTYPE_RSS_IPV6)
   86                 rss_set->hashinfo |= LIO_RSS_HASH_IPV6;
   87 
   88         if (rss_hash_config & RSS_HASHTYPE_RSS_TCP_IPV6)
   89                 rss_set->hashinfo |= LIO_RSS_HASH_TCP_IPV6;
   90 
   91         if (rss_hash_config & RSS_HASHTYPE_RSS_IPV6_EX)
   92                 rss_set->hashinfo |= LIO_RSS_HASH_IPV6_EX;
   93 
   94         if (rss_hash_config & RSS_HASHTYPE_RSS_TCP_IPV6_EX)
   95                 rss_set->hashinfo |= LIO_RSS_HASH_TCP_IPV6_EX;
   96 }
   97 
   98 int
   99 lio_send_rss_param(struct lio *lio)
  100 {
  101         struct octeon_device    *oct = lio->oct_dev;
  102         struct lio_soft_command *sc = NULL;
  103         union   octeon_cmd *cmd = NULL;
  104         struct lio_rss_params   *rss_param;
  105         int     i, retval;
  106 
  107         sc = lio_alloc_soft_command(oct,
  108                         OCTEON_CMD_SIZE + sizeof(struct lio_rss_params), 0, 0);
  109 
  110         if (sc == NULL) {
  111                 lio_dev_err(oct, "%s: Soft command allocation failed\n",
  112                             __func__);
  113                 return (ENOMEM);
  114         }
  115 
  116         sc->iq_no = lio->linfo.txpciq[0].s.q_no;
  117 
  118         lio_prepare_soft_command(oct, sc, LIO_OPCODE_NIC, LIO_OPCODE_NIC_CMD, 0,
  119                                  0, 0);
  120 
  121         sc->callback = lio_set_rss_callback;
  122         sc->callback_arg = sc;
  123         sc->wait_time = 1000;
  124 
  125         cmd = (union octeon_cmd *)sc->virtdptr;
  126         cmd->cmd64 = 0;
  127         cmd->s.cmd = LIO_CMD_SET_RSS;
  128 
  129         rss_param = (struct lio_rss_params *)(cmd + 1);
  130         rss_param->param.flags = 0;
  131         rss_param->param.itablesize = LIO_RSS_TABLE_SZ;
  132         rss_param->param.hashkeysize = LIO_RSS_KEY_SZ;
  133 
  134         lio_set_rss_info(lio);
  135         rss_param->param.hashinfo = lio->rss_set.hashinfo;
  136         memcpy(rss_param->itable, (void *)lio->rss_set.fw_itable,
  137                (size_t)rss_param->param.itablesize);
  138 
  139         lio_dev_info(oct, "RSS itable: Size %u\n", rss_param->param.itablesize);
  140         for (i = 0; i < rss_param->param.itablesize; i += 8) {
  141                 lio_dev_dbg(oct, "   %03u:%2u, %03u:%2u, %03u:%2u, %03u:%2u, %03u:%2u, %03u:%2u, %03u:%2u, %03u:%2u\n",
  142                             i + 0, rss_param->itable[i + 0],
  143                             i + 1, rss_param->itable[i + 1],
  144                             i + 2, rss_param->itable[i + 2],
  145                             i + 3, rss_param->itable[i + 3],
  146                             i + 4, rss_param->itable[i + 4],
  147                             i + 5, rss_param->itable[i + 5],
  148                             i + 6, rss_param->itable[i + 6],
  149                             i + 7, rss_param->itable[i + 7]);
  150         }
  151 
  152         rss_getkey(lio->rss_set.key);
  153 
  154         memcpy(rss_param->key, (void *)lio->rss_set.key,
  155                (size_t)rss_param->param.hashkeysize);
  156 
  157         /* swap cmd and rss params */
  158         lio_swap_8B_data((uint64_t *)cmd,
  159                          ((OCTEON_CMD_SIZE + LIO_RSS_PARAM_SIZE) >> 3));
  160 
  161         retval = lio_send_soft_command(oct, sc);
  162         if (retval == LIO_IQ_SEND_FAILED) {
  163                 lio_dev_err(oct,
  164                             "%s: Sending soft command failed, status: %x\n",
  165                             __func__, retval);
  166                 lio_free_soft_command(oct, sc);
  167                 return (-1);
  168         }
  169 
  170         return (0);
  171 }
  172 
  173 #endif  /* RSS */

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FreeBSD/Linux Kernel Cross Reference sys/dev/liquidio/lio_rss.c

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sys/dev/liquidio/lio_rss.c