diff options
Diffstat (limited to 'src/dpdk22/drivers/net/mlx4/mlx4.h')
| -rw-r--r-- | src/dpdk22/drivers/net/mlx4/mlx4.h | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/src/dpdk22/drivers/net/mlx4/mlx4.h b/src/dpdk22/drivers/net/mlx4/mlx4.h new file mode 100644 index 00000000..d0c7bc29 --- /dev/null +++ b/src/dpdk22/drivers/net/mlx4/mlx4.h @@ -0,0 +1,163 @@ +/*- + * BSD LICENSE + * + * Copyright 2012-2015 6WIND S.A. + * Copyright 2012 Mellanox. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of 6WIND S.A. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef RTE_PMD_MLX4_H_ +#define RTE_PMD_MLX4_H_ + +#include <stddef.h> +#include <stdint.h> +#include <limits.h> + +/* + * Maximum number of simultaneous MAC addresses supported. + * + * According to ConnectX's Programmer Reference Manual: + * The L2 Address Match is implemented by comparing a MAC/VLAN combination + * of 128 MAC addresses and 127 VLAN values, comprising 128x127 possible + * L2 addresses. + */ +#define MLX4_MAX_MAC_ADDRESSES 128 + +/* Maximum number of simultaneous VLAN filters supported. See above. */ +#define MLX4_MAX_VLAN_IDS 127 + +/* Request send completion once in every 64 sends, might be less. */ +#define MLX4_PMD_TX_PER_COMP_REQ 64 + +/* Maximum number of Scatter/Gather Elements per Work Request. */ +#ifndef MLX4_PMD_SGE_WR_N +#define MLX4_PMD_SGE_WR_N 4 +#endif + +/* Maximum size for inline data. */ +#ifndef MLX4_PMD_MAX_INLINE +#define MLX4_PMD_MAX_INLINE 0 +#endif + +/* + * Maximum number of cached Memory Pools (MPs) per TX queue. Each RTE MP + * from which buffers are to be transmitted will have to be mapped by this + * driver to their own Memory Region (MR). This is a slow operation. + * + * This value is always 1 for RX queues. + */ +#ifndef MLX4_PMD_TX_MP_CACHE +#define MLX4_PMD_TX_MP_CACHE 8 +#endif + +/* + * If defined, only use software counters. The PMD will never ask the hardware + * for these, and many of them won't be available. + */ +#ifndef MLX4_PMD_SOFT_COUNTERS +#define MLX4_PMD_SOFT_COUNTERS 1 +#endif + +/* Alarm timeout. */ +#define MLX4_ALARM_TIMEOUT_US 100000 + +enum { + PCI_VENDOR_ID_MELLANOX = 0x15b3, +}; + +enum { + PCI_DEVICE_ID_MELLANOX_CONNECTX3 = 0x1003, + PCI_DEVICE_ID_MELLANOX_CONNECTX3VF = 0x1004, + PCI_DEVICE_ID_MELLANOX_CONNECTX3PRO = 0x1007, +}; + +#define MLX4_DRIVER_NAME "librte_pmd_mlx4" + +/* Bit-field manipulation. */ +#define BITFIELD_DECLARE(bf, type, size) \ + type bf[(((size_t)(size) / (sizeof(type) * CHAR_BIT)) + \ + !!((size_t)(size) % (sizeof(type) * CHAR_BIT)))] +#define BITFIELD_DEFINE(bf, type, size) \ + BITFIELD_DECLARE((bf), type, (size)) = { 0 } +#define BITFIELD_SET(bf, b) \ + (assert((size_t)(b) < (sizeof(bf) * CHAR_BIT)), \ + (void)((bf)[((b) / (sizeof((bf)[0]) * CHAR_BIT))] |= \ + ((size_t)1 << ((b) % (sizeof((bf)[0]) * CHAR_BIT))))) +#define BITFIELD_RESET(bf, b) \ + (assert((size_t)(b) < (sizeof(bf) * CHAR_BIT)), \ + (void)((bf)[((b) / (sizeof((bf)[0]) * CHAR_BIT))] &= \ + ~((size_t)1 << ((b) % (sizeof((bf)[0]) * CHAR_BIT))))) +#define BITFIELD_ISSET(bf, b) \ + (assert((size_t)(b) < (sizeof(bf) * CHAR_BIT)), \ + !!(((bf)[((b) / (sizeof((bf)[0]) * CHAR_BIT))] & \ + ((size_t)1 << ((b) % (sizeof((bf)[0]) * CHAR_BIT)))))) + +/* Number of elements in array. */ +#define elemof(a) (sizeof(a) / sizeof((a)[0])) + +/* Cast pointer p to structure member m to its parent structure of type t. */ +#define containerof(p, t, m) ((t *)((uint8_t *)(p) - offsetof(t, m))) + +/* Branch prediction helpers. */ +#ifndef likely +#define likely(c) __builtin_expect(!!(c), 1) +#endif +#ifndef unlikely +#define unlikely(c) __builtin_expect(!!(c), 0) +#endif + +/* Debugging */ +#ifndef NDEBUG +#include <stdio.h> +#define DEBUG__(m, ...) \ + (fprintf(stderr, "%s:%d: %s(): " m "%c", \ + __FILE__, __LINE__, __func__, __VA_ARGS__), \ + fflush(stderr), \ + (void)0) +/* + * Save/restore errno around DEBUG__(). + * XXX somewhat undefined behavior, but works. + */ +#define DEBUG_(...) \ + (errno = ((int []){ \ + *(volatile int *)&errno, \ + (DEBUG__(__VA_ARGS__), 0) \ + })[0]) +#define DEBUG(...) DEBUG_(__VA_ARGS__, '\n') +#define claim_zero(...) assert((__VA_ARGS__) == 0) +#define claim_nonzero(...) assert((__VA_ARGS__) != 0) +#define claim_positive(...) assert((__VA_ARGS__) >= 0) +#else /* NDEBUG */ +/* No-ops. */ +#define DEBUG(...) (void)0 +#define claim_zero(...) (__VA_ARGS__) +#define claim_nonzero(...) (__VA_ARGS__) +#define claim_positive(...) (__VA_ARGS__) +#endif /* NDEBUG */ + +#endif /* RTE_PMD_MLX4_H_ */ |