270524d8b4
Fixes: 2f45703c17 ("drivers: make driver names consistent")
Signed-off-by: David Marchand <david.marchand@6wind.com>
Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
164 lines
5.4 KiB
C
164 lines
5.4 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright 2012-2015 6WIND S.A.
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* Copyright 2012 Mellanox.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of 6WIND S.A. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef RTE_PMD_MLX4_H_
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#define RTE_PMD_MLX4_H_
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#include <stddef.h>
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#include <stdint.h>
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#include <limits.h>
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/*
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* Maximum number of simultaneous MAC addresses supported.
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*
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* According to ConnectX's Programmer Reference Manual:
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* The L2 Address Match is implemented by comparing a MAC/VLAN combination
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* of 128 MAC addresses and 127 VLAN values, comprising 128x127 possible
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* L2 addresses.
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*/
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#define MLX4_MAX_MAC_ADDRESSES 128
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/* Maximum number of simultaneous VLAN filters supported. See above. */
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#define MLX4_MAX_VLAN_IDS 127
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/* Request send completion once in every 64 sends, might be less. */
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#define MLX4_PMD_TX_PER_COMP_REQ 64
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/* Maximum number of Scatter/Gather Elements per Work Request. */
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#ifndef MLX4_PMD_SGE_WR_N
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#define MLX4_PMD_SGE_WR_N 4
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#endif
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/* Maximum size for inline data. */
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#ifndef MLX4_PMD_MAX_INLINE
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#define MLX4_PMD_MAX_INLINE 0
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#endif
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/*
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* Maximum number of cached Memory Pools (MPs) per TX queue. Each RTE MP
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* from which buffers are to be transmitted will have to be mapped by this
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* driver to their own Memory Region (MR). This is a slow operation.
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*
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* This value is always 1 for RX queues.
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*/
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#ifndef MLX4_PMD_TX_MP_CACHE
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#define MLX4_PMD_TX_MP_CACHE 8
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#endif
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/*
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* If defined, only use software counters. The PMD will never ask the hardware
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* for these, and many of them won't be available.
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*/
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#ifndef MLX4_PMD_SOFT_COUNTERS
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#define MLX4_PMD_SOFT_COUNTERS 1
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#endif
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/* Alarm timeout. */
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#define MLX4_ALARM_TIMEOUT_US 100000
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enum {
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PCI_VENDOR_ID_MELLANOX = 0x15b3,
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};
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enum {
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PCI_DEVICE_ID_MELLANOX_CONNECTX3 = 0x1003,
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PCI_DEVICE_ID_MELLANOX_CONNECTX3VF = 0x1004,
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PCI_DEVICE_ID_MELLANOX_CONNECTX3PRO = 0x1007,
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};
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#define MLX4_DRIVER_NAME "net_mlx4"
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/* Bit-field manipulation. */
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#define BITFIELD_DECLARE(bf, type, size) \
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type bf[(((size_t)(size) / (sizeof(type) * CHAR_BIT)) + \
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!!((size_t)(size) % (sizeof(type) * CHAR_BIT)))]
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#define BITFIELD_DEFINE(bf, type, size) \
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BITFIELD_DECLARE((bf), type, (size)) = { 0 }
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#define BITFIELD_SET(bf, b) \
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(assert((size_t)(b) < (sizeof(bf) * CHAR_BIT)), \
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(void)((bf)[((b) / (sizeof((bf)[0]) * CHAR_BIT))] |= \
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((size_t)1 << ((b) % (sizeof((bf)[0]) * CHAR_BIT)))))
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#define BITFIELD_RESET(bf, b) \
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(assert((size_t)(b) < (sizeof(bf) * CHAR_BIT)), \
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(void)((bf)[((b) / (sizeof((bf)[0]) * CHAR_BIT))] &= \
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~((size_t)1 << ((b) % (sizeof((bf)[0]) * CHAR_BIT)))))
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#define BITFIELD_ISSET(bf, b) \
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(assert((size_t)(b) < (sizeof(bf) * CHAR_BIT)), \
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!!(((bf)[((b) / (sizeof((bf)[0]) * CHAR_BIT))] & \
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((size_t)1 << ((b) % (sizeof((bf)[0]) * CHAR_BIT))))))
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/* Number of elements in array. */
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#define elemof(a) (sizeof(a) / sizeof((a)[0]))
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/* Cast pointer p to structure member m to its parent structure of type t. */
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#define containerof(p, t, m) ((t *)((uint8_t *)(p) - offsetof(t, m)))
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/* Branch prediction helpers. */
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#ifndef likely
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#define likely(c) __builtin_expect(!!(c), 1)
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#endif
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#ifndef unlikely
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#define unlikely(c) __builtin_expect(!!(c), 0)
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#endif
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/* Debugging */
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#ifndef NDEBUG
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#include <stdio.h>
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#define DEBUG__(m, ...) \
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(fprintf(stderr, "%s:%d: %s(): " m "%c", \
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__FILE__, __LINE__, __func__, __VA_ARGS__), \
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fflush(stderr), \
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(void)0)
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/*
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* Save/restore errno around DEBUG__().
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* XXX somewhat undefined behavior, but works.
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*/
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#define DEBUG_(...) \
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(errno = ((int []){ \
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*(volatile int *)&errno, \
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(DEBUG__(__VA_ARGS__), 0) \
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})[0])
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#define DEBUG(...) DEBUG_(__VA_ARGS__, '\n')
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#define claim_zero(...) assert((__VA_ARGS__) == 0)
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#define claim_nonzero(...) assert((__VA_ARGS__) != 0)
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#define claim_positive(...) assert((__VA_ARGS__) >= 0)
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#else /* NDEBUG */
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/* No-ops. */
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#define DEBUG(...) (void)0
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#define claim_zero(...) (__VA_ARGS__)
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#define claim_nonzero(...) (__VA_ARGS__)
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#define claim_positive(...) (__VA_ARGS__)
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#endif /* NDEBUG */
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#endif /* RTE_PMD_MLX4_H_ */
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