diff options
author | Tariq Toukan <tariqt@mellanox.com> | 2017-07-17 12:27:26 +0300 |
---|---|---|
committer | Saeed Mahameed <saeedm@mellanox.com> | 2017-09-03 06:34:09 +0300 |
commit | 7cc6d77bb56de3a428ed7cde91a09fffbdbef794 (patch) | |
tree | f8eaa165ac0b88c6d86e3da98b8a39e847521ed7 /drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c | |
parent | a071cb9f25bef32ec309ca9d123022c52175341b (diff) | |
download | linux-7cc6d77bb56de3a428ed7cde91a09fffbdbef794.tar.xz |
net/mlx5e: Type-specific optimizations for RX post WQEs function
Separate the RX post WQEs function of the different RQ types.
This enables RQ type-specific optimizations in data-path.
Poll the ICOSQ completion queue only for Striding RQ,
and only when a UMR post completion could be possibly available.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c | 64 |
1 files changed, 1 insertions, 63 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c index 7311b937e434..439ba1f2ffbc 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c @@ -32,66 +32,6 @@ #include "en.h" -static inline void mlx5e_poll_ico_single_cqe(struct mlx5e_cq *cq, - struct mlx5e_icosq *sq, - struct mlx5_cqe64 *cqe, - u16 *sqcc) -{ - struct mlx5_wq_cyc *wq = &sq->wq; - u16 ci = be16_to_cpu(cqe->wqe_counter) & wq->sz_m1; - struct mlx5e_sq_wqe_info *icowi = &sq->db.ico_wqe[ci]; - struct mlx5e_rq *rq = &sq->channel->rq; - - prefetch(rq); - mlx5_cqwq_pop(&cq->wq); - *sqcc += icowi->num_wqebbs; - - if (unlikely((cqe->op_own >> 4) != MLX5_CQE_REQ)) { - WARN_ONCE(true, "mlx5e: Bad OP in ICOSQ CQE: 0x%x\n", - cqe->op_own); - return; - } - - if (likely(icowi->opcode == MLX5_OPCODE_UMR)) { - mlx5e_post_rx_mpwqe(rq); - return; - } - - if (unlikely(icowi->opcode != MLX5_OPCODE_NOP)) - WARN_ONCE(true, - "mlx5e: Bad OPCODE in ICOSQ WQE info: 0x%x\n", - icowi->opcode); -} - -static void mlx5e_poll_ico_cq(struct mlx5e_cq *cq) -{ - struct mlx5e_icosq *sq = container_of(cq, struct mlx5e_icosq, cq); - struct mlx5_cqe64 *cqe; - u16 sqcc; - - if (unlikely(!MLX5E_TEST_BIT(sq->state, MLX5E_SQ_STATE_ENABLED))) - return; - - cqe = mlx5_cqwq_get_cqe(&cq->wq); - if (likely(!cqe)) - return; - - /* sq->cc must be updated only after mlx5_cqwq_update_db_record(), - * otherwise a cq overrun may occur - */ - sqcc = sq->cc; - - /* by design, there's only a single cqe */ - mlx5e_poll_ico_single_cqe(cq, sq, cqe, &sqcc); - - mlx5_cqwq_update_db_record(&cq->wq); - - /* ensure cq space is freed before enabling more cqes */ - wmb(); - - sq->cc = sqcc; -} - int mlx5e_napi_poll(struct napi_struct *napi, int budget) { struct mlx5e_channel *c = container_of(napi, struct mlx5e_channel, @@ -111,9 +51,7 @@ int mlx5e_napi_poll(struct napi_struct *napi, int budget) work_done = mlx5e_poll_rx_cq(&c->rq.cq, budget); busy |= work_done == budget; - mlx5e_poll_ico_cq(&c->icosq.cq); - - busy |= mlx5e_post_rx_wqes(&c->rq); + busy |= c->rq.post_wqes(&c->rq); if (busy) return budget; |