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 "librte_pmd_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 /* Request send completion once in every 64 sends, might be less. */ 52 #define MLX5_PMD_TX_PER_COMP_REQ 64 53 54 /* RSS Indirection table size. */ 55 #define RSS_INDIRECTION_TABLE_SIZE 256 56 57 /* Maximum number of Scatter/Gather Elements per Work Request. */ 58 #ifndef MLX5_PMD_SGE_WR_N 59 #define MLX5_PMD_SGE_WR_N 4 60 #endif 61 62 /* Maximum size for inline data. */ 63 #ifndef MLX5_PMD_MAX_INLINE 64 #define MLX5_PMD_MAX_INLINE 0 65 #endif 66 67 /* 68 * Maximum number of cached Memory Pools (MPs) per TX queue. Each RTE MP 69 * from which buffers are to be transmitted will have to be mapped by this 70 * driver to their own Memory Region (MR). This is a slow operation. 71 * 72 * This value is always 1 for RX queues. 73 */ 74 #ifndef MLX5_PMD_TX_MP_CACHE 75 #define MLX5_PMD_TX_MP_CACHE 8 76 #endif 77 78 /* 79 * If defined, only use software counters. The PMD will never ask the hardware 80 * for these, and many of them won't be available. 81 */ 82 #ifndef MLX5_PMD_SOFT_COUNTERS 83 #define MLX5_PMD_SOFT_COUNTERS 1 84 #endif 85 86 /* Alarm timeout. */ 87 #define MLX5_ALARM_TIMEOUT_US 100000 88 89 /* 90 * Extended flow priorities necessary to support flow director are available 91 * since MLNX_OFED 3.2. Considering this version adds support for VLAN 92 * offloads as well, their availability means flow director can be used. 93 */ 94 #ifdef HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS 95 #define MLX5_FDIR_SUPPORT 1 96 #endif 97 98 #endif /* RTE_PMD_MLX5_DEFS_H_ */ 99