netdev - [net-next 11/15] net/mlx5e: TX, Generalise code and usage of error CQE dump

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Date:   Thu, 30 Apr 2020 10:18:31 -0700
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     "David S. Miller" <davem@...emloft.net>, kuba@...nel.org
Cc:     netdev@...r.kernel.org, Tariq Toukan <tariqt@...lanox.com>,
        Aya Levin <ayal@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>
Subject: [net-next 11/15] net/mlx5e: TX, Generalise code and usage of error CQE dump

From: Tariq Toukan <tariqt@...lanox.com>

Error CQE was dumped only for TXQ SQs.
Generalise the function, and add usage for error completions
on ICO SQs and XDP SQs.

Signed-off-by: Tariq Toukan <tariqt@...lanox.com>
Reviewed-by: Aya Levin <ayal@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
 .../net/ethernet/mellanox/mlx5/core/en/txrx.h  | 16 ++++++++++++++++
 .../net/ethernet/mellanox/mlx5/core/en/xdp.c   | 13 ++++++++-----
 .../net/ethernet/mellanox/mlx5/core/en_rx.c    |  2 ++
 .../net/ethernet/mellanox/mlx5/core/en_tx.c    | 18 +-----------------
 4 files changed, 27 insertions(+), 22 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h b/drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h
index 9f6967d76053..c0249fc77eaa 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h
@@ -189,6 +189,22 @@ static inline void mlx5e_rqwq_reset(struct mlx5e_rq *rq)
 	}
 }
 
+static inline void mlx5e_dump_error_cqe(struct mlx5e_cq *cq, u32 sqn,
+					struct mlx5_err_cqe *err_cqe)
+{
+	struct mlx5_cqwq *wq = &cq->wq;
+	u32 ci;
+
+	ci = mlx5_cqwq_ctr2ix(wq, wq->cc - 1);
+
+	netdev_err(cq->channel->netdev,
+		   "Error cqe on cqn 0x%x, ci 0x%x, sqn 0x%x, opcode 0x%x, syndrome 0x%x, vendor syndrome 0x%x\n",
+		   cq->mcq.cqn, ci, sqn,
+		   get_cqe_opcode((struct mlx5_cqe64 *)err_cqe),
+		   err_cqe->syndrome, err_cqe->vendor_err_synd);
+	mlx5_dump_err_cqe(cq->mdev, err_cqe);
+}
+
 /* SW parser related functions */
 
 struct mlx5e_swp_spec {
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c
index f049e0ac308a..f9dad2639061 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c
@@ -415,11 +415,6 @@ bool mlx5e_poll_xdpsq_cq(struct mlx5e_cq *cq)
 
 		wqe_counter = be16_to_cpu(cqe->wqe_counter);
 
-		if (unlikely(get_cqe_opcode(cqe) != MLX5_CQE_REQ))
-			netdev_WARN_ONCE(sq->channel->netdev,
-					 "Bad OP in XDPSQ CQE: 0x%x\n",
-					 get_cqe_opcode(cqe));
-
 		do {
 			struct mlx5e_xdp_wqe_info *wi;
 			u16 ci;
@@ -432,6 +427,14 @@ bool mlx5e_poll_xdpsq_cq(struct mlx5e_cq *cq)
 
 			mlx5e_free_xdpsq_desc(sq, wi, &xsk_frames, true);
 		} while (!last_wqe);
+
+		if (unlikely(get_cqe_opcode(cqe) != MLX5_CQE_REQ)) {
+			netdev_WARN_ONCE(sq->channel->netdev,
+					 "Bad OP in XDPSQ CQE: 0x%x\n",
+					 get_cqe_opcode(cqe));
+			mlx5e_dump_error_cqe(&sq->cq, sq->sqn,
+					     (struct mlx5_err_cqe *)cqe);
+		}
 	} while ((++i < MLX5E_TX_CQ_POLL_BUDGET) && (cqe = mlx5_cqwq_get_cqe(&cq->wq)));
 
 	if (xsk_frames)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
index e2beb89c1832..4db1c92f0019 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
@@ -631,6 +631,8 @@ int mlx5e_poll_ico_cq(struct mlx5e_cq *cq)
 				netdev_WARN_ONCE(cq->channel->netdev,
 						 "Bad OP in ICOSQ CQE: 0x%x\n",
 						 get_cqe_opcode(cqe));
+				mlx5e_dump_error_cqe(&sq->cq, sq->sqn,
+						     (struct mlx5_err_cqe *)cqe);
 				if (!test_and_set_bit(MLX5E_SQ_STATE_RECOVERING, &sq->state))
 					queue_work(cq->channel->priv->wq, &sq->recover_work);
 				break;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
index fd6b2a1898c5..1679557f34c0 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
@@ -399,22 +399,6 @@ netdev_tx_t mlx5e_xmit(struct sk_buff *skb, struct net_device *dev)
 	return mlx5e_sq_xmit(sq, skb, wqe, pi, netdev_xmit_more());
 }
 
-static void mlx5e_dump_error_cqe(struct mlx5e_txqsq *sq,
-				 struct mlx5_err_cqe *err_cqe)
-{
-	struct mlx5_cqwq *wq = &sq->cq.wq;
-	u32 ci;
-
-	ci = mlx5_cqwq_ctr2ix(wq, wq->cc - 1);
-
-	netdev_err(sq->channel->netdev,
-		   "Error cqe on cqn 0x%x, ci 0x%x, sqn 0x%x, opcode 0x%x, syndrome 0x%x, vendor syndrome 0x%x\n",
-		   sq->cq.mcq.cqn, ci, sq->sqn,
-		   get_cqe_opcode((struct mlx5_cqe64 *)err_cqe),
-		   err_cqe->syndrome, err_cqe->vendor_err_synd);
-	mlx5_dump_err_cqe(sq->cq.mdev, err_cqe);
-}
-
 bool mlx5e_poll_tx_cq(struct mlx5e_cq *cq, int napi_budget)
 {
 	struct mlx5e_sq_stats *stats;
@@ -501,7 +485,7 @@ bool mlx5e_poll_tx_cq(struct mlx5e_cq *cq, int napi_budget)
 		if (unlikely(get_cqe_opcode(cqe) == MLX5_CQE_REQ_ERR)) {
 			if (!test_and_set_bit(MLX5E_SQ_STATE_RECOVERING,
 					      &sq->state)) {
-				mlx5e_dump_error_cqe(sq,
+				mlx5e_dump_error_cqe(&sq->cq, sq->sqn,
 						     (struct mlx5_err_cqe *)cqe);
 				mlx5_wq_cyc_wqe_dump(&sq->wq, ci, wi->num_wqebbs);
 				queue_work(cq->channel->priv->wq,
-- 
2.25.4