ceph/src/dpdk/drivers/net/mlx5/mlx5_defs.h

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright 2015 6WIND S.A.
   5  *   Copyright 2015 Mellanox.
   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 6WIND S.A. 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 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
  34 #ifndef RTE_PMD_MLX5_DEFS_H_
  35 #define RTE_PMD_MLX5_DEFS_H_
  36
  37 #include "mlx5_autoconf.h"
  38
  39 /* Reported driver name. */
  40 #define MLX5_DRIVER_NAME "net_mlx5"
  41
  42 /* Maximum number of simultaneous MAC addresses. */
  43 #define MLX5_MAX_MAC_ADDRESSES 128
  44
  45 /* Maximum number of simultaneous VLAN filters. */
  46 #define MLX5_MAX_VLAN_IDS 128
  47
  48 /* Maximum number of special flows. */
  49 #define MLX5_MAX_SPECIAL_FLOWS 4
  50
  51 /*
  52  * Request TX completion every time descriptors reach this threshold since
  53  * the previous request. Must be a power of two for performance reasons.
  54  */
  55 #define MLX5_TX_COMP_THRESH 32
  56
  57 /* RSS Indirection table size. */
  58 #define RSS_INDIRECTION_TABLE_SIZE 256
  59
  60 /*
  61  * Maximum number of cached Memory Pools (MPs) per TX queue. Each RTE MP
  62  * from which buffers are to be transmitted will have to be mapped by this
  63  * driver to their own Memory Region (MR). This is a slow operation.
  64  *
  65  * This value is always 1 for RX queues.
  66  */
  67 #ifndef MLX5_PMD_TX_MP_CACHE
  68 #define MLX5_PMD_TX_MP_CACHE 8
  69 #endif
  70
  71 /*
  72  * If defined, only use software counters. The PMD will never ask the hardware
  73  * for these, and many of them won't be available.
  74  */
  75 #ifndef MLX5_PMD_SOFT_COUNTERS
  76 #define MLX5_PMD_SOFT_COUNTERS 1
  77 #endif
  78
  79 /* Alarm timeout. */
  80 #define MLX5_ALARM_TIMEOUT_US 100000
  81
  82 #endif /* RTE_PMD_MLX5_DEFS_H_ */