From: Gal Pressman <gal@nvidia.com>
Date: Wed, 22 Dec 2021 14:03:39 +0200
Subject: net/mlx5e: Add recovery flow in case of error CQE
Patch-mainline: v5.17-rc1
Git-commit: 5dd29f40b25f91f1b65043f2225b843a8d0cb1df
References: jsc#PED-1549

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>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_rx.c |   20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

--- 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_
 	}
 }
 
+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 m
 	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(stru
 	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_re
 	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_sh
 	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(st
 	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;
 	}