mlx5_en_dim.c

Version: - FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10

    1 /*-
    2  * Copyright (c) 2018 Mellanox Technologies. All rights reserved.
    3  *
    4  * Redistribution and use in source and binary forms, with or without
    5  * modification, are permitted provided that the following conditions
    6  * are met:
    7  * 1. Redistributions of source code must retain the above copyright
    8  *    notice, this list of conditions and the following disclaimer.
    9  * 2. Redistributions in binary form must reproduce the above copyright
   10  *    notice, this list of conditions and the following disclaimer in the
   11  *    documentation and/or other materials provided with the distribution.
   12  *
   13  * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS `AS IS' AND
   14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   16  * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
   17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   23  * SUCH DAMAGE.
   24  *
   25  * $FreeBSD$
   26  */
   27 
   28 #include "opt_rss.h"
   29 #include "opt_ratelimit.h"
   30 
   31 #include <dev/mlx5/mlx5_en/en.h>
   32 
   33 void
   34 mlx5e_dim_build_cq_param(struct mlx5e_priv *priv,
   35     struct mlx5e_cq_param *param)
   36 {
   37         struct net_dim_cq_moder prof;
   38         void *cqc = param->cqc;
   39 
   40         if (priv->params.rx_cq_moderation_mode < 2)
   41                 return;
   42 
   43         switch (MLX5_GET(cqc, cqc, cq_period_mode)) {
   44         case MLX5_CQ_PERIOD_MODE_START_FROM_CQE:
   45                 prof = net_dim_profile[NET_DIM_CQ_PERIOD_MODE_START_FROM_CQE]
   46                     [NET_DIM_DEF_PROFILE_CQE];
   47                 MLX5_SET(cqc, cqc, cq_period, prof.usec);
   48                 MLX5_SET(cqc, cqc, cq_max_count, prof.pkts);
   49                 break;
   50 
   51         case MLX5_CQ_PERIOD_MODE_START_FROM_EQE:
   52                 prof = net_dim_profile[NET_DIM_CQ_PERIOD_MODE_START_FROM_EQE]
   53                     [NET_DIM_DEF_PROFILE_EQE];
   54                 MLX5_SET(cqc, cqc, cq_period, prof.usec);
   55                 MLX5_SET(cqc, cqc, cq_max_count, prof.pkts);
   56                 break;
   57         default:
   58                 break;
   59         }
   60 }
   61 
   62 void
   63 mlx5e_dim_work(struct work_struct *work)
   64 {
   65         struct net_dim *dim = container_of(work, struct net_dim, work);
   66         struct mlx5e_rq *rq = container_of(dim, struct mlx5e_rq, dim);
   67         struct mlx5e_channel *c = container_of(rq, struct mlx5e_channel, rq);
   68         struct net_dim_cq_moder cur_profile;
   69         u8 profile_ix;
   70         u8 mode;
   71 
   72         /* copy current auto moderation settings and set new state */
   73         mtx_lock(&rq->mtx);
   74         profile_ix = dim->profile_ix;
   75         mode = dim->mode;
   76         dim->state = NET_DIM_START_MEASURE;
   77         mtx_unlock(&rq->mtx);
   78 
   79         /* check for invalid mode */
   80         if (mode == 255)
   81                 return;
   82 
   83         /* get current profile */
   84         cur_profile = net_dim_profile[mode][profile_ix];
   85 
   86         /* apply LRO restrictions */
   87         if (c->priv->params.hw_lro_en &&
   88             cur_profile.pkts > MLX5E_DIM_MAX_RX_CQ_MODERATION_PKTS_WITH_LRO) {
   89                 cur_profile.pkts = MLX5E_DIM_MAX_RX_CQ_MODERATION_PKTS_WITH_LRO;
   90         }
   91 
   92         /* modify CQ */
   93         mlx5_core_modify_cq_moderation(c->priv->mdev, &rq->cq.mcq,
   94             cur_profile.usec, cur_profile.pkts);
   95 }

Cache object: c70d2d6c985b411fddfcb04bc2ac488e

[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.

FreeBSD/Linux Kernel Cross Reference sys/dev/mlx5/mlx5_en/mlx5_en_dim.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/mlx5/mlx5_en/mlx5_en_dim.c