diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/srq.c | 150 |
1 files changed, 140 insertions, 10 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/srq.c b/drivers/net/ethernet/mellanox/mlx5/core/srq.c index f774de6f5fcb..7673da04efa4 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/srq.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/srq.c @@ -435,16 +435,128 @@ out: return err; } +static int create_xrq_cmd(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq, + struct mlx5_srq_attr *in) +{ + u32 create_out[MLX5_ST_SZ_DW(create_xrq_out)] = {0}; + void *create_in; + void *xrqc; + void *wq; + int pas_size; + int inlen; + int err; + + pas_size = get_pas_size(in); + inlen = MLX5_ST_SZ_BYTES(create_xrq_in) + pas_size; + create_in = kvzalloc(inlen, GFP_KERNEL); + if (!create_in) + return -ENOMEM; + + xrqc = MLX5_ADDR_OF(create_xrq_in, create_in, xrq_context); + wq = MLX5_ADDR_OF(xrqc, xrqc, wq); + + set_wq(wq, in); + memcpy(MLX5_ADDR_OF(xrqc, xrqc, wq.pas), in->pas, pas_size); + + if (in->type == IB_SRQT_TM) { + MLX5_SET(xrqc, xrqc, topology, MLX5_XRQC_TOPOLOGY_TAG_MATCHING); + if (in->flags & MLX5_SRQ_FLAG_RNDV) + MLX5_SET(xrqc, xrqc, offload, MLX5_XRQC_OFFLOAD_RNDV); + MLX5_SET(xrqc, xrqc, + tag_matching_topology_context.log_matching_list_sz, + in->tm_log_list_size); + } + MLX5_SET(xrqc, xrqc, user_index, in->user_index); + MLX5_SET(xrqc, xrqc, cqn, in->cqn); + MLX5_SET(create_xrq_in, create_in, opcode, MLX5_CMD_OP_CREATE_XRQ); + err = mlx5_cmd_exec(dev, create_in, inlen, create_out, + sizeof(create_out)); + kvfree(create_in); + if (!err) + srq->srqn = MLX5_GET(create_xrq_out, create_out, xrqn); + + return err; +} + +static int destroy_xrq_cmd(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq) +{ + u32 in[MLX5_ST_SZ_DW(destroy_xrq_in)] = {0}; + u32 out[MLX5_ST_SZ_DW(destroy_xrq_out)] = {0}; + + MLX5_SET(destroy_xrq_in, in, opcode, MLX5_CMD_OP_DESTROY_XRQ); + MLX5_SET(destroy_xrq_in, in, xrqn, srq->srqn); + + return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); +} + +static int arm_xrq_cmd(struct mlx5_core_dev *dev, + struct mlx5_core_srq *srq, + u16 lwm) +{ + u32 out[MLX5_ST_SZ_DW(arm_rq_out)] = {0}; + u32 in[MLX5_ST_SZ_DW(arm_rq_in)] = {0}; + + MLX5_SET(arm_rq_in, in, opcode, MLX5_CMD_OP_ARM_RQ); + MLX5_SET(arm_rq_in, in, op_mod, MLX5_ARM_RQ_IN_OP_MOD_XRQ); + MLX5_SET(arm_rq_in, in, srq_number, srq->srqn); + MLX5_SET(arm_rq_in, in, lwm, lwm); + + return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out)); +} + +static int query_xrq_cmd(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq, + struct mlx5_srq_attr *out) +{ + u32 in[MLX5_ST_SZ_DW(query_xrq_in)] = {0}; + u32 *xrq_out; + int outlen = MLX5_ST_SZ_BYTES(query_xrq_out); + void *xrqc; + int err; + + xrq_out = kvzalloc(outlen, GFP_KERNEL); + if (!xrq_out) + return -ENOMEM; + + MLX5_SET(query_xrq_in, in, opcode, MLX5_CMD_OP_QUERY_XRQ); + MLX5_SET(query_xrq_in, in, xrqn, srq->srqn); + + err = mlx5_cmd_exec(dev, in, sizeof(in), xrq_out, outlen); + if (err) + goto out; + + xrqc = MLX5_ADDR_OF(query_xrq_out, xrq_out, xrq_context); + get_wq(MLX5_ADDR_OF(xrqc, xrqc, wq), out); + if (MLX5_GET(xrqc, xrqc, state) != MLX5_XRQC_STATE_GOOD) + out->flags |= MLX5_SRQ_FLAG_ERR; + out->tm_next_tag = + MLX5_GET(xrqc, xrqc, + tag_matching_topology_context.append_next_index); + out->tm_hw_phase_cnt = + MLX5_GET(xrqc, xrqc, + tag_matching_topology_context.hw_phase_cnt); + out->tm_sw_phase_cnt = + MLX5_GET(xrqc, xrqc, + tag_matching_topology_context.sw_phase_cnt); + +out: + kvfree(xrq_out); + return err; +} + static int create_srq_split(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq, struct mlx5_srq_attr *in) { if (!dev->issi) return create_srq_cmd(dev, srq, in); - else if (srq->common.res == MLX5_RES_XSRQ) + switch (srq->common.res) { + case MLX5_RES_XSRQ: return create_xrc_srq_cmd(dev, srq, in); - else + case MLX5_RES_XRQ: + return create_xrq_cmd(dev, srq, in); + default: return create_rmp_cmd(dev, srq, in); + } } static int destroy_srq_split(struct mlx5_core_dev *dev, @@ -452,10 +564,14 @@ static int destroy_srq_split(struct mlx5_core_dev *dev, { if (!dev->issi) return destroy_srq_cmd(dev, srq); - else if (srq->common.res == MLX5_RES_XSRQ) + switch (srq->common.res) { + case MLX5_RES_XSRQ: return destroy_xrc_srq_cmd(dev, srq); - else + case MLX5_RES_XRQ: + return destroy_xrq_cmd(dev, srq); + default: return destroy_rmp_cmd(dev, srq); + } } int mlx5_core_create_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq, @@ -464,10 +580,16 @@ int mlx5_core_create_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq, int err; struct mlx5_srq_table *table = &dev->priv.srq_table; - if (in->type == IB_SRQT_XRC) + switch (in->type) { + case IB_SRQT_XRC: srq->common.res = MLX5_RES_XSRQ; - else + break; + case IB_SRQT_TM: + srq->common.res = MLX5_RES_XRQ; + break; + default: srq->common.res = MLX5_RES_SRQ; + } err = create_srq_split(dev, srq, in); if (err) @@ -528,10 +650,14 @@ int mlx5_core_query_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq, { if (!dev->issi) return query_srq_cmd(dev, srq, out); - else if (srq->common.res == MLX5_RES_XSRQ) + switch (srq->common.res) { + case MLX5_RES_XSRQ: return query_xrc_srq_cmd(dev, srq, out); - else + case MLX5_RES_XRQ: + return query_xrq_cmd(dev, srq, out); + default: return query_rmp_cmd(dev, srq, out); + } } EXPORT_SYMBOL(mlx5_core_query_srq); @@ -540,10 +666,14 @@ int mlx5_core_arm_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq, { if (!dev->issi) return arm_srq_cmd(dev, srq, lwm, is_srq); - else if (srq->common.res == MLX5_RES_XSRQ) + switch (srq->common.res) { + case MLX5_RES_XSRQ: return arm_xrc_srq_cmd(dev, srq, lwm); - else + case MLX5_RES_XRQ: + return arm_xrq_cmd(dev, srq, lwm); + default: return arm_rmp_cmd(dev, srq, lwm); + } } EXPORT_SYMBOL(mlx5_core_arm_srq); |