X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fmlx4%2Fmlx4_prm.h;h=aef77ba06e848bb2e11f95376f1ca1cd5a8abcbd;hb=1c8489da561be16ac73c6dab01db816af249713f;hp=df5a6b49b5137ab35e3c7e79b9a157af075b1bff;hpb=5db1d364086e235ff4ac2c276538b0cc9b2e6010;p=dpdk.git

diff --git a/drivers/net/mlx4/mlx4_prm.h b/drivers/net/mlx4/mlx4_prm.h
index df5a6b49b5..aef77ba06e 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 Technologies, Ltd
  */
 
 #ifndef MLX4_PRM_H_
@@ -47,52 +19,99 @@
 #ifdef PEDANTIC
 #pragma GCC diagnostic error "-Wpedantic"
 #endif
+#include "mlx4_autoconf.h"
 
 /* ConnectX-3 Tx queue basic block. */
 #define MLX4_TXBB_SHIFT 6
 #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_WQE_CTRL_RR (1 << 6)
 
-#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),
+	MLX4_CQE_L2_TUNNEL_L4_CSUM = (int)(1u << 26),
+	MLX4_CQE_L2_TUNNEL = (int)(1u << 27),
+	MLX4_CQE_L2_VLAN_MASK = (int)(3u << 29),
+	MLX4_CQE_L2_TUNNEL_IPOK = (int)(1u << 31),
+};
+
+/* CQE status flags. */
+#define MLX4_CQE_STATUS_IPV6F (1 << 12)
+#define MLX4_CQE_STATUS_IPV4 (1 << 22)
+#define MLX4_CQE_STATUS_IPV4F (1 << 23)
+#define MLX4_CQE_STATUS_IPV6 (1 << 24)
+#define MLX4_CQE_STATUS_IPV4OPT (1 << 25)
+#define MLX4_CQE_STATUS_TCP (1 << 26)
+#define MLX4_CQE_STATUS_UDP (1 << 27)
+#define MLX4_CQE_STATUS_PTYPE_MASK \
+	(MLX4_CQE_STATUS_IPV4 | \
+	 MLX4_CQE_STATUS_IPV4F | \
+	 MLX4_CQE_STATUS_IPV6 | \
+	 MLX4_CQE_STATUS_IPV4OPT | \
+	 MLX4_CQE_STATUS_TCP | \
+	 MLX4_CQE_STATUS_UDP)
 
 /* Send queue information. */
 struct mlx4_sq {
-	uint8_t *buf; /**< SQ buffer. */
-	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 *db; /**< Pointer to the doorbell. */
+	volatile uint8_t *buf; /**< SQ buffer. */
+	volatile uint8_t *eob; /**< End of SQ buffer */
+	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
+#define MLX4_CQ_DB_CI_MASK 0xffffff
 
 /* Completion queue information. */
 struct mlx4_cq {
-	uint8_t *buf; /**< Pointer to the completion queue buffer. */
+	volatile void *cq_uar; /**< CQ user access region. */
+	volatile void *cq_db_reg; /**< CQ doorbell register. */
+	volatile uint32_t *set_ci_db; /**< Pointer to the CQ doorbell. */
+	volatile uint32_t *arm_db; /**< Arming Rx events doorbell. */
+	volatile uint8_t *buf; /**< Pointer to the completion queue buffer. */
 	uint32_t cqe_cnt; /**< Number of entries in the queue. */
 	uint32_t cqe_64:1; /**< CQ entry size is 64 bytes. */
 	uint32_t cons_index; /**< Last queue entry that was handled. */
-	uint32_t *set_ci_db; /**< Pointer to the completion queue doorbell. */
+	uint32_t cqn; /**< CQ number. */
+	int arm_sn; /**< Rx event counter. */
+};
+
+#ifndef HAVE_IBV_MLX4_WQE_LSO_SEG
+/*
+ * WQE LSO segment structure.
+ * Defined here as backward compatibility for rdma-core v17 and below.
+ * Similar definition is found in infiniband/mlx4dv.h in rdma-core v18
+ * and above.
+ */
+struct mlx4_wqe_lso_seg {
+	rte_be32_t mss_hdr_size;
+	rte_be32_t header[];
 };
+#endif
 
 /**
  * Retrieve a CQE entry from a CQ.
@@ -110,13 +129,34 @@ struct mlx4_cq {
  * @return
  *   Pointer to CQE entry.
  */
-static inline struct mlx4_cqe *
+static inline volatile struct mlx4_cqe *
 mlx4_get_cqe(struct mlx4_cq *cq, uint32_t index)
 {
-	return (struct mlx4_cqe *)(cq->buf +
+	return (volatile struct mlx4_cqe *)(cq->buf +
 				   ((index & (cq->cqe_cnt - 1)) <<
 				    (5 + cq->cqe_64)) +
 				   (cq->cqe_64 << 5));
 }
 
+/**
+ * Transpose a flag in a value.
+ *
+ * @param val
+ *   Input value.
+ * @param from
+ *   Flag to retrieve from input value.
+ * @param to
+ *   Flag to set in output value.
+ *
+ * @return
+ *   Output value with transposed flag enabled if present on input.
+ */
+static inline uint64_t
+mlx4_transpose(uint64_t val, uint64_t from, uint64_t to)
+{
+	return (from >= to ?
+		(val & from) / (from / to) :
+		(val & from) * (to / from));
+}
+
 #endif /* MLX4_PRM_H_ */