From: Saeed Mahameed <saeedm@mellanox.com>
To: "David S. Miller" <davem@davemloft.net>
Cc: "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
Saeed Mahameed <saeedm@mellanox.com>,
Tariq Toukan <tariqt@mellanox.com>
Subject: [net-next 08/15] net/mlx5e: TX, Dump WQs wqe descriptors on CQE with error events
Date: Fri, 1 Nov 2019 21:59:11 +0000 [thread overview]
Message-ID: <20191101215833.23975-9-saeedm@mellanox.com> (raw)
In-Reply-To: <20191101215833.23975-1-saeedm@mellanox.com>
Dump the Work Queue's TX WQE descriptor when a completion with
error is received.
Example:
[5.331832] mlx5_core 0000:00:04.0 enp0s4: Error cqe on cqn 0xa, ci 0x1, TXQ-SQ qpn 0xe, opcode 0xd, syndrome 0x2, vendor syndrome 0x0
[5.333127] 00000000: 55 65 02 75 31 fe c2 d2 6b 6c 62 1e f9 e1 d8 5c
[5.333837] 00000010: d3 b2 6c b8 89 e4 84 20 0b f4 3c e0 f3 75 41 ca
[5.334568] 00000020: 46 00 00 00 cd 70 a0 92 18 3a 01 de 00 00 00 00
[5.335313] 00000030: 7d bc 05 89 b2 e9 00 02 1e 00 00 0e 00 00 30 d2
[5.335972] WQE DUMP: WQ size 1024 WQ cur size 0, WQE index 0x0, len: 64
[5.336710] 00000000: 00 00 00 1e 00 00 0e 04 00 00 00 08 00 00 00 00
[5.337524] 00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 12 33 33
[5.338151] 00000020: 00 00 00 16 52 54 00 00 00 01 86 dd 60 00 00 00
[5.338740] 00000030: 00 00 00 48 00 00 00 00 00 00 00 00 66 ba 58 14
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
---
.../net/ethernet/mellanox/mlx5/core/en_tx.c | 6 ++++++
drivers/net/ethernet/mellanox/mlx5/core/wq.c | 18 ++++++++++++++++++
drivers/net/ethernet/mellanox/mlx5/core/wq.h | 1 +
3 files changed, 25 insertions(+)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
index d3a67a9b4eba..29730f52e315 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
@@ -458,8 +458,14 @@ 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)) {
+ struct mlx5e_tx_wqe_info *wi;
+ u16 ci;
+
+ ci = mlx5_wq_cyc_ctr2ix(&sq->wq, sqcc);
+ wi = &sq->db.wqe_info[ci];
mlx5e_dump_error_cqe(sq,
(struct mlx5_err_cqe *)cqe);
+ mlx5_wq_cyc_wqe_dump(&sq->wq, ci, wi->num_wqebbs);
queue_work(cq->channel->priv->wq,
&sq->recover_work);
}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/wq.c b/drivers/net/ethernet/mellanox/mlx5/core/wq.c
index dd2315ce4441..dab2625e1e59 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/wq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/wq.c
@@ -96,6 +96,24 @@ int mlx5_wq_cyc_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param,
return err;
}
+void mlx5_wq_cyc_wqe_dump(struct mlx5_wq_cyc *wq, u16 ix, u8 nstrides)
+{
+ size_t len;
+ void *wqe;
+
+ if (!net_ratelimit())
+ return;
+
+ nstrides = max_t(u8, nstrides, 1);
+
+ len = nstrides << wq->fbc.log_stride;
+ wqe = mlx5_wq_cyc_get_wqe(wq, ix);
+
+ pr_info("WQE DUMP: WQ size %d WQ cur size %d, WQE index 0x%x, len: %ld\n",
+ mlx5_wq_cyc_get_size(wq), wq->cur_sz, ix, len);
+ print_hex_dump(KERN_WARNING, "", DUMP_PREFIX_OFFSET, 16, 1, wqe, len, false);
+}
+
int mlx5_wq_qp_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param,
void *qpc, struct mlx5_wq_qp *wq,
struct mlx5_wq_ctrl *wq_ctrl)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/wq.h b/drivers/net/ethernet/mellanox/mlx5/core/wq.h
index 55791f71a778..27338c3c6136 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/wq.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/wq.h
@@ -79,6 +79,7 @@ struct mlx5_wq_ll {
int mlx5_wq_cyc_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param,
void *wqc, struct mlx5_wq_cyc *wq,
struct mlx5_wq_ctrl *wq_ctrl);
+void mlx5_wq_cyc_wqe_dump(struct mlx5_wq_cyc *wq, u16 ix, u8 nstrides);
u32 mlx5_wq_cyc_get_size(struct mlx5_wq_cyc *wq);
int mlx5_wq_qp_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param,
--
2.21.0
next prev parent reply other threads:[~2019-11-01 21:59 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-01 21:58 [pull request][net-next 00/15] Mellanox, mlx5 updates 2019-11-01 Saeed Mahameed
2019-11-01 21:58 ` [net-next 01/15] net/mlx5: DR, Replace CRC32 implementation to use kernel lib Saeed Mahameed
2019-11-01 21:58 ` [net-next 02/15] net/mlx5: FPGA, support network cards with standalone FPGA Saeed Mahameed
2019-11-01 21:59 ` [net-next 03/15] net/mlx5: Remove unneeded variable in mlx5_unload_one Saeed Mahameed
2019-11-01 21:59 ` [net-next 04/15] net/mlx5: Clear VF's configuration on disabling SRIOV Saeed Mahameed
2019-11-01 21:59 ` [net-next 05/15] net/mlx5e: Verify that rule has at least one fwd/drop action Saeed Mahameed
2019-11-01 21:59 ` [net-next 06/15] net/mlx5: Do not hold group lock while allocating FTE in software Saeed Mahameed
2019-11-01 21:59 ` [net-next 07/15] net/mlx5: Support lockless FTE read lookups Saeed Mahameed
2019-11-01 21:59 ` Saeed Mahameed [this message]
2019-11-01 21:59 ` [net-next 09/15] net/mlx5: WQ, Move short getters into header file Saeed Mahameed
2019-11-01 21:59 ` [net-next 10/15] net/mlx5e: Bit sized fields rewrite support Saeed Mahameed
2019-11-01 21:59 ` [net-next 11/15] net/mlx5e: Add ToS (DSCP) header " Saeed Mahameed
2019-11-01 21:59 ` [net-next 12/15] net/mlx5: rate limit alloc_ent error messages Saeed Mahameed
2019-11-01 21:59 ` [net-next 13/15] net/mlx5: LAG, Use port enumerators Saeed Mahameed
2019-11-01 21:59 ` [net-next 14/15] net/mlx5: LAG, Use affinity type enumerators Saeed Mahameed
2019-11-01 21:59 ` [net-next 15/15] net/mlx5: DR, Support IPv4 and IPv6 mixed matcher Saeed Mahameed
2019-11-04 3:24 ` [pull request][net-next 00/15] Mellanox, mlx5 updates 2019-11-01 David Miller
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