diff options
Diffstat (limited to 'drivers/net/mlx4/mlx4_prm.h')
| -rw-r--r-- | drivers/net/mlx4/mlx4_prm.h | 59 |
1 files changed, 14 insertions, 45 deletions
diff --git a/drivers/net/mlx4/mlx4_prm.h b/drivers/net/mlx4/mlx4_prm.h index fcc7c129..153dda52 100644 --- a/drivers/net/mlx4/mlx4_prm.h +++ b/drivers/net/mlx4/mlx4_prm.h @@ -1,34 +1,6 @@ -/*- - * BSD LICENSE - * - * Copyright 2017 6WIND S.A. - * Copyright 2017 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. +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright 2017 6WIND S.A. + * Copyright 2017 Mellanox */ #ifndef MLX4_PRM_H_ @@ -53,23 +25,22 @@ #define MLX4_TXBB_SIZE (1 << MLX4_TXBB_SHIFT) /* Typical TSO descriptor with 16 gather entries is 352 bytes. */ -#define MLX4_MAX_WQE_SIZE 512 -#define MLX4_MAX_WQE_TXBBS (MLX4_MAX_WQE_SIZE / MLX4_TXBB_SIZE) +#define MLX4_MAX_SGE 32 +#define MLX4_MAX_WQE_SIZE \ + (MLX4_MAX_SGE * sizeof(struct mlx4_wqe_data_seg) + \ + sizeof(struct mlx4_wqe_ctrl_seg)) +#define MLX4_SEG_SHIFT 4 /* Send queue stamping/invalidating information. */ #define MLX4_SQ_STAMP_STRIDE 64 #define MLX4_SQ_STAMP_DWORDS (MLX4_SQ_STAMP_STRIDE / 4) -#define MLX4_SQ_STAMP_SHIFT 31 +#define MLX4_SQ_OWNER_BIT 31 #define MLX4_SQ_STAMP_VAL 0x7fffffff /* Work queue element (WQE) flags. */ -#define MLX4_BIT_WQE_OWN 0x80000000 #define MLX4_WQE_CTRL_IIP_HDR_CSUM (1 << 28) #define MLX4_WQE_CTRL_IL4_HDR_CSUM (1 << 27) -#define MLX4_SIZE_TO_TXBBS(size) \ - (RTE_ALIGN((size), (MLX4_TXBB_SIZE)) >> (MLX4_TXBB_SHIFT)) - /* CQE checksum flags. */ enum { MLX4_CQE_L2_TUNNEL_IPV4 = (int)(1u << 25), @@ -98,17 +69,15 @@ enum { struct mlx4_sq { volatile uint8_t *buf; /**< SQ buffer. */ volatile uint8_t *eob; /**< End of SQ buffer */ - uint32_t head; /**< SQ head counter in units of TXBBS. */ - uint32_t tail; /**< SQ tail counter in units of TXBBS. */ - uint32_t txbb_cnt; /**< Num of WQEBB in the Q (should be ^2). */ - uint32_t txbb_cnt_mask; /**< txbbs_cnt mask (txbb_cnt is ^2). */ - uint32_t headroom_txbbs; /**< Num of txbbs that should be kept free. */ + uint32_t size; /**< SQ size includes headroom. */ + uint32_t remain_size; /**< Remaining WQE room in SQ (bytes). */ + uint32_t owner_opcode; + /**< Default owner opcode with HW valid owner bit. */ + uint32_t stamp; /**< Stamp value with an invalid HW owner bit. */ volatile uint32_t *db; /**< Pointer to the doorbell. */ uint32_t doorbell_qpn; /**< qp number to write to the doorbell. */ }; -#define mlx4_get_send_wqe(sq, n) ((sq)->buf + ((n) * (MLX4_TXBB_SIZE))) - /* Completion queue events, numbers and masks. */ #define MLX4_CQ_DB_GEQ_N_MASK 0x3 #define MLX4_CQ_DOORBELL 0x20 |