From: Saeed Mahameed <saeed@kernel.org>
To: "David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Eric Dumazet <edumazet@google.com>
Cc: Saeed Mahameed <saeedm@nvidia.com>,
netdev@vger.kernel.org, Tariq Toukan <tariqt@nvidia.com>,
Rahul Rameshbabu <rrameshbabu@nvidia.com>
Subject: [net-next 08/14] net/mlx5e: Introduce lost_cqe statistic counter for PTP Tx port timestamping CQ
Date: Mon, 13 Nov 2023 15:00:45 -0800 [thread overview]
Message-ID: <20231113230051.58229-9-saeed@kernel.org> (raw)
In-Reply-To: <20231113230051.58229-1-saeed@kernel.org>
From: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Track the number of times the a CQE was expected to not be delivered on PTP
Tx port timestamping CQ. A CQE is expected to not be delivered of a certain
amount of time passes since the corresponding CQE containing the DMA
timestamp information has arrived. Increment the late_cqe counter when such
a CQE does manage to be delivered to the CQ.
Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
.../device_drivers/ethernet/mellanox/mlx5/counters.rst | 6 ++++++
drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c | 1 +
drivers/net/ethernet/mellanox/mlx5/core/en_stats.c | 1 +
drivers/net/ethernet/mellanox/mlx5/core/en_stats.h | 1 +
4 files changed, 9 insertions(+)
diff --git a/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/counters.rst b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/counters.rst
index f69ee1ebee01..5464cd9e2694 100644
--- a/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/counters.rst
+++ b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/counters.rst
@@ -702,6 +702,12 @@ the software port.
the device typically ensures not posting the CQE.
- Error
+ * - `ptp_cq[i]_lost_cqe`
+ - Number of times a CQE is expected to not be delivered on the PTP
+ timestamping CQE by the device due to a time delta elapsing. If such a
+ CQE is somehow delivered, `ptp_cq[i]_late_cqe` is incremented.
+ - Error
+
.. [#ring_global] The corresponding ring and global counters do not share the
same name (i.e. do not follow the common naming scheme).
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c b/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c
index bb11e644d24f..a81f9c672b69 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/ptp.c
@@ -169,6 +169,7 @@ static void mlx5e_ptpsq_mark_ts_cqes_undelivered(struct mlx5e_ptpsq *ptpsq,
WARN_ON_ONCE(!pos->inuse);
pos->inuse = false;
list_del(&pos->entry);
+ ptpsq->cq_stats->lost_cqe++;
}
spin_unlock(&cqe_list->tracker_list_lock);
}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c
index 4b96ad657145..7e63d7c88894 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c
@@ -2158,6 +2158,7 @@ static const struct counter_desc ptp_cq_stats_desc[] = {
{ MLX5E_DECLARE_PTP_CQ_STAT(struct mlx5e_ptp_cq_stats, abort) },
{ MLX5E_DECLARE_PTP_CQ_STAT(struct mlx5e_ptp_cq_stats, abort_abs_diff_ns) },
{ MLX5E_DECLARE_PTP_CQ_STAT(struct mlx5e_ptp_cq_stats, late_cqe) },
+ { MLX5E_DECLARE_PTP_CQ_STAT(struct mlx5e_ptp_cq_stats, lost_cqe) },
};
static const struct counter_desc ptp_rq_stats_desc[] = {
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
index 477c547dcc04..2584f049ec53 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
@@ -461,6 +461,7 @@ struct mlx5e_ptp_cq_stats {
u64 abort;
u64 abort_abs_diff_ns;
u64 late_cqe;
+ u64 lost_cqe;
};
struct mlx5e_rep_stats {
--
2.41.0
next prev parent reply other threads:[~2023-11-13 23:01 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-13 23:00 [pull request][net-next 00/14] mlx5 updates 2023-11-13 Saeed Mahameed
2023-11-13 23:00 ` [net-next 01/14] net/mlx5: print change on SW reset semaphore returns busy Saeed Mahameed
2023-11-13 23:00 ` [net-next 02/14] net/mlx5: Allow sync reset flow when BF MGT interface device is present Saeed Mahameed
2023-11-13 23:00 ` [net-next 03/14] net/mlx5e: Some cleanup in mlx5e_tc_stats_matchall() Saeed Mahameed
2023-11-13 23:00 ` [net-next 04/14] net/mlx5: Annotate struct mlx5_fc_bulk with __counted_by Saeed Mahameed
2023-11-13 23:00 ` [net-next 05/14] net/mlx5: Annotate struct mlx5_flow_handle " Saeed Mahameed
2023-11-13 23:00 ` [net-next 06/14] net/mlx5: simplify mlx5_set_driver_version string assignments Saeed Mahameed
2023-11-13 23:00 ` [net-next 07/14] net/mlx5e: Access array with enum values instead of magic numbers Saeed Mahameed
2023-11-13 23:00 ` Saeed Mahameed [this message]
2023-11-14 15:22 ` [net-next 08/14] net/mlx5e: Introduce lost_cqe statistic counter for PTP Tx port timestamping CQ Vadim Fedorenko
2023-11-16 19:51 ` Rahul Rameshbabu
2023-11-18 19:00 ` Vadim Fedorenko
2023-11-13 23:00 ` [net-next 09/14] net/mlx5: Refactor real time clock operation checks for PHC Saeed Mahameed
2023-11-13 23:00 ` [net-next 10/14] net/mlx5: Initialize clock->ptp_info inside mlx5_init_timer_clock Saeed Mahameed
2023-11-13 23:00 ` [net-next 11/14] net/mlx5: Convert scaled ppm values outside the s32 range for PHC frequency adjustments Saeed Mahameed
2023-11-13 23:00 ` [net-next 12/14] net/mlx5: Query maximum frequency adjustment of the PTP hardware clock Saeed Mahameed
2023-11-13 23:00 ` [net-next 13/14] net/mlx5e: Add local loopback counter to vport rep stats Saeed Mahameed
2023-11-13 23:00 ` [net-next 14/14] net/mlx5e: Remove early assignment to netdev->features Saeed Mahameed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20231113230051.58229-9-saeed@kernel.org \
--to=saeed@kernel.org \
--cc=davem@davemloft.net \
--cc=edumazet@google.com \
--cc=kuba@kernel.org \
--cc=netdev@vger.kernel.org \
--cc=pabeni@redhat.com \
--cc=rrameshbabu@nvidia.com \
--cc=saeedm@nvidia.com \
--cc=tariqt@nvidia.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).