common/mlx5: add DevX command to modify RQT

RQ table can be changed to support different list of queues.

Add DevX command to modify DevX RQT object to point on new RQ list.

Signed-off-by: Matan Azrad <matan@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>

diff --git a/drivers/common/mlx5/mlx5_devx_cmds.c b/drivers/common/mlx5/mlx5_devx_cmds.c
index e372df6..1d3a729 100644 (file)
--- a/drivers/common/mlx5/mlx5_devx_cmds.c
+++ b/drivers/common/mlx5/mlx5_devx_cmds.c
@@ -863,6 +863,53 @@ mlx5_devx_cmd_create_rqt(struct ibv_context *ctx,
        return rqt;
 }
 
+/**
+ * Modify RQT using DevX API.
+ *
+ * @param[in] rqt
+ *   Pointer to RQT DevX object structure.
+ * @param [in] rqt_attr
+ *   Pointer to RQT attributes structure.
+ *
+ * @return
+ *   0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+int
+mlx5_devx_cmd_modify_rqt(struct mlx5_devx_obj *rqt,
+                        struct mlx5_devx_rqt_attr *rqt_attr)
+{
+       uint32_t inlen = MLX5_ST_SZ_BYTES(modify_rqt_in) +
+                        rqt_attr->rqt_actual_size * sizeof(uint32_t);
+       uint32_t out[MLX5_ST_SZ_DW(modify_rqt_out)] = {0};
+       uint32_t *in = rte_calloc(__func__, 1, inlen, 0);
+       void *rqt_ctx;
+       int i;
+       int ret;
+
+       if (!in) {
+               DRV_LOG(ERR, "Failed to allocate RQT modify IN data.");
+               rte_errno = ENOMEM;
+               return -ENOMEM;
+       }
+       MLX5_SET(modify_rqt_in, in, opcode, MLX5_CMD_OP_MODIFY_RQT);
+       MLX5_SET(modify_rqt_in, in, rqtn, rqt->id);
+       MLX5_SET64(modify_rqt_in, in, modify_bitmask, 0x1);
+       rqt_ctx = MLX5_ADDR_OF(modify_rqt_in, in, rqt_context);
+       MLX5_SET(rqtc, rqt_ctx, list_q_type, rqt_attr->rq_type);
+       MLX5_SET(rqtc, rqt_ctx, rqt_max_size, rqt_attr->rqt_max_size);
+       MLX5_SET(rqtc, rqt_ctx, rqt_actual_size, rqt_attr->rqt_actual_size);
+       for (i = 0; i < rqt_attr->rqt_actual_size; i++)
+               MLX5_SET(rqtc, rqt_ctx, rq_num[i], rqt_attr->rq_list[i]);
+       ret = mlx5_glue->devx_obj_modify(rqt->obj, in, inlen, out, sizeof(out));
+       rte_free(in);
+       if (ret) {
+               DRV_LOG(ERR, "Failed to modify RQT using DevX.");
+               rte_errno = errno;
+               return -rte_errno;
+       }
+       return ret;
+}
+
 /**
  * Create SQ using DevX API.
  *

diff --git a/drivers/common/mlx5/mlx5_devx_cmds.h b/drivers/common/mlx5/mlx5_devx_cmds.h
index 9ef3ce2..b99c54b 100644 (file)
--- a/drivers/common/mlx5/mlx5_devx_cmds.h
+++ b/drivers/common/mlx5/mlx5_devx_cmds.h
@@ -344,5 +344,7 @@ struct mlx5_devx_obj *mlx5_devx_cmd_create_qp(struct ibv_context *ctx,
                                              struct mlx5_devx_qp_attr *attr);
 int mlx5_devx_cmd_modify_qp_state(struct mlx5_devx_obj *qp,
                                  uint32_t qp_st_mod_op, uint32_t remote_qp_id);
+int mlx5_devx_cmd_modify_rqt(struct mlx5_devx_obj *rqt,
+                            struct mlx5_devx_rqt_attr *rqt_attr);
 
 #endif /* RTE_PMD_MLX5_DEVX_CMDS_H_ */

diff --git a/drivers/common/mlx5/mlx5_prm.h b/drivers/common/mlx5/mlx5_prm.h
index e326868..b48cd0a 100644 (file)
--- a/drivers/common/mlx5/mlx5_prm.h
+++ b/drivers/common/mlx5/mlx5_prm.h
@@ -747,6 +747,7 @@ enum {
        MLX5_CMD_OP_CREATE_TIS = 0x912,
        MLX5_CMD_OP_QUERY_TIS = 0x915,
        MLX5_CMD_OP_CREATE_RQT = 0x916,
+       MLX5_CMD_OP_MODIFY_RQT = 0x917,
        MLX5_CMD_OP_ALLOC_FLOW_COUNTER = 0x939,
        MLX5_CMD_OP_QUERY_FLOW_COUNTER = 0x93b,
        MLX5_CMD_OP_CREATE_GENERAL_OBJECT = 0xa00,
@@ -1774,10 +1775,30 @@ struct mlx5_ifc_create_rqt_in_bits {
        u8 reserved_at_40[0xc0];
        struct mlx5_ifc_rqtc_bits rqt_context;
 };
+
+struct mlx5_ifc_modify_rqt_in_bits {
+       u8 opcode[0x10];
+       u8 uid[0x10];
+       u8 reserved_at_20[0x10];
+       u8 op_mod[0x10];
+       u8 reserved_at_40[0x8];
+       u8 rqtn[0x18];
+       u8 reserved_at_60[0x20];
+       u8 modify_bitmask[0x40];
+       u8 reserved_at_c0[0x40];
+       struct mlx5_ifc_rqtc_bits rqt_context;
+};
 #ifdef PEDANTIC
 #pragma GCC diagnostic error "-Wpedantic"
 #endif
 
+struct mlx5_ifc_modify_rqt_out_bits {
+       u8 status[0x8];
+       u8 reserved_at_8[0x18];
+       u8 syndrome[0x20];
+       u8 reserved_at_40[0x40];
+};
+
 enum {
        MLX5_SQC_STATE_RST  = 0x0,
        MLX5_SQC_STATE_RDY  = 0x1,

diff --git a/drivers/common/mlx5/rte_common_mlx5_version.map b/drivers/common/mlx5/rte_common_mlx5_version.map
index df8e064..95ca54a 100644 (file)
--- a/drivers/common/mlx5/rte_common_mlx5_version.map
+++ b/drivers/common/mlx5/rte_common_mlx5_version.map
@@ -17,6 +17,7 @@ DPDK_20.02 {
        mlx5_devx_cmd_mkey_create;
        mlx5_devx_cmd_modify_qp_state;
        mlx5_devx_cmd_modify_rq;
+       mlx5_devx_cmd_modify_rqt;
        mlx5_devx_cmd_modify_sq;
        mlx5_devx_cmd_modify_virtq;
        mlx5_devx_cmd_qp_query_tis_td;