From: Gal Pressman <gal@nvidia.com>
Date: Wed, 22 Dec 2021 12:03:39 +0000 (+0200)
Subject: net/mlx5e: Add recovery flow in case of error CQE
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=5dd29f40b25f91f1b65043f2225b843a8d0cb1df;p=linux.git

net/mlx5e: Add recovery flow in case of error CQE

The rep legacy RQ completion handling was missing the appropriate
handling of error CQEs (dump the CQE and queue a recover work), fix it
by calling trigger_report() when needed.

Since all CQE handling flows do the exact same error CQE handling,
extract it to a common helper function.

Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Aya Levin <ayal@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
index f09b57c31ed7a..96e260fd79878 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
@@ -1603,6 +1603,12 @@ static void trigger_report(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe)
 	}
 }
 
+static void mlx5e_handle_rx_err_cqe(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe)
+{
+	trigger_report(rq, cqe);
+	rq->stats->wqe_err++;
+}
+
 static void mlx5e_handle_rx_cqe(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe)
 {
 	struct mlx5_wq_cyc *wq = &rq->wqe.wq;
@@ -1616,8 +1622,7 @@ static void mlx5e_handle_rx_cqe(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe)
 	cqe_bcnt = be32_to_cpu(cqe->byte_cnt);
 
 	if (unlikely(MLX5E_RX_ERR_CQE(cqe))) {
-		trigger_report(rq, cqe);
-		rq->stats->wqe_err++;
+		mlx5e_handle_rx_err_cqe(rq, cqe);
 		goto free_wqe;
 	}
 
@@ -1670,7 +1675,7 @@ static void mlx5e_handle_rx_cqe_rep(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe)
 	cqe_bcnt = be32_to_cpu(cqe->byte_cnt);
 
 	if (unlikely(MLX5E_RX_ERR_CQE(cqe))) {
-		rq->stats->wqe_err++;
+		mlx5e_handle_rx_err_cqe(rq, cqe);
 		goto free_wqe;
 	}
 
@@ -1719,8 +1724,7 @@ static void mlx5e_handle_rx_cqe_mpwrq_rep(struct mlx5e_rq *rq, struct mlx5_cqe64
 	wi->consumed_strides += cstrides;
 
 	if (unlikely(MLX5E_RX_ERR_CQE(cqe))) {
-		trigger_report(rq, cqe);
-		rq->stats->wqe_err++;
+		mlx5e_handle_rx_err_cqe(rq, cqe);
 		goto mpwrq_cqe_out;
 	}
 
@@ -1988,8 +1992,7 @@ static void mlx5e_handle_rx_cqe_mpwrq_shampo(struct mlx5e_rq *rq, struct mlx5_cq
 	wi->consumed_strides += cstrides;
 
 	if (unlikely(MLX5E_RX_ERR_CQE(cqe))) {
-		trigger_report(rq, cqe);
-		stats->wqe_err++;
+		mlx5e_handle_rx_err_cqe(rq, cqe);
 		goto mpwrq_cqe_out;
 	}
 
@@ -2058,8 +2061,7 @@ static void mlx5e_handle_rx_cqe_mpwrq(struct mlx5e_rq *rq, struct mlx5_cqe64 *cq
 	wi->consumed_strides += cstrides;
 
 	if (unlikely(MLX5E_RX_ERR_CQE(cqe))) {
-		trigger_report(rq, cqe);
-		rq->stats->wqe_err++;
+		mlx5e_handle_rx_err_cqe(rq, cqe);
 		goto mpwrq_cqe_out;
 	}