summaryrefslogtreecommitdiffstats
path: root/drivers/net/mlx4/mlx4_prm.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/mlx4/mlx4_prm.h')
-rw-r--r--drivers/net/mlx4/mlx4_prm.h59
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