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>,
Maher Sanalla <msanalla@nvidia.com>,
Moshe Shemesh <moshe@nvidia.com>
Subject: [net 04/17] net/mlx5e: Do not update SBCM when prio2buffer command is invalid
Date: Wed, 24 May 2023 20:48:34 -0700 [thread overview]
Message-ID: <20230525034847.99268-5-saeed@kernel.org> (raw)
In-Reply-To: <20230525034847.99268-1-saeed@kernel.org>
From: Maher Sanalla <msanalla@nvidia.com>
The shared buffer pools configuration which are stored in the SBCM
register are updated when the user changes the prio2buffer mapping.
However, in case the user desired prio2buffer change is invalid,
which can occur due to mapping a lossless priority to a not large enough
buffer, the SBCM update should not be performed, as the user command is
failed.
Thus, Perform the SBCM update only after xoff threshold calculation is
performed and the user prio2buffer mapping is validated.
Fixes: a440030d8946 ("net/mlx5e: Update shared buffer along with device buffer changes")
Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
drivers/net/ethernet/mellanox/mlx5/core/en/port_buffer.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/port_buffer.c b/drivers/net/ethernet/mellanox/mlx5/core/en/port_buffer.c
index 0d78527451bc..7e8e96cc5cd0 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/port_buffer.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/port_buffer.c
@@ -442,11 +442,11 @@ static int update_buffer_lossy(struct mlx5_core_dev *mdev,
}
if (changed) {
- err = port_update_pool_cfg(mdev, port_buffer);
+ err = update_xoff_threshold(port_buffer, xoff, max_mtu, port_buff_cell_sz);
if (err)
return err;
- err = update_xoff_threshold(port_buffer, xoff, max_mtu, port_buff_cell_sz);
+ err = port_update_pool_cfg(mdev, port_buffer);
if (err)
return err;
--
2.40.1
next prev parent reply other threads:[~2023-05-25 3:49 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-25 3:48 [pull request][net 00/17] mlx5 fixes 2023-05-24 Saeed Mahameed
2023-05-25 3:48 ` [net 01/17] net/mlx5e: Extract remaining tunnel encap code to dedicated file Saeed Mahameed
2023-05-26 4:30 ` patchwork-bot+netdevbpf
2023-05-25 3:48 ` [net 02/17] net/mlx5e: Prevent encap offload when neigh update is running Saeed Mahameed
2023-05-25 3:48 ` [net 03/17] net/mlx5e: Consider internal buffers size in port buffer calculations Saeed Mahameed
2023-05-25 3:48 ` Saeed Mahameed [this message]
2023-05-25 3:48 ` [net 05/17] net/mlx5: Drain health before unregistering devlink Saeed Mahameed
2023-05-25 3:48 ` [net 06/17] net/mlx5: SF, Drain health before removing device Saeed Mahameed
2023-05-25 3:48 ` [net 07/17] net/mlx5: fw_tracer, Fix event handling Saeed Mahameed
2023-05-25 3:48 ` [net 08/17] net/mlx5e: Use query_special_contexts cmd only once per mdev Saeed Mahameed
2023-05-25 3:48 ` [net 09/17] net/mlx5: Fix post parse infra to only parse every action once Saeed Mahameed
2023-05-25 3:48 ` [net 10/17] net/mlx5e: Don't attach netdev profile while handling internal error Saeed Mahameed
2023-05-25 3:48 ` [net 11/17] net/mlx5e: Move Ethernet driver debugfs to profile init callback Saeed Mahameed
2023-05-25 3:48 ` [net 12/17] net/mlx5: DR, Add missing mutex init/destroy in pattern manager Saeed Mahameed
2023-05-25 3:48 ` [net 13/17] net/mlx5: Fix check for allocation failure in comp_irqs_request_pci() Saeed Mahameed
2023-05-25 3:48 ` [net 14/17] Documentation: net/mlx5: Wrap vnic reporter devlink commands in code blocks Saeed Mahameed
2023-05-25 3:48 ` [net 15/17] Documentation: net/mlx5: Use bullet and definition lists for vnic counters description Saeed Mahameed
2023-05-25 3:48 ` [net 16/17] Documentation: net/mlx5: Add blank line separator before numbered lists Saeed Mahameed
2023-05-25 3:48 ` [net 17/17] Documentation: net/mlx5: Wrap notes in admonition blocks Saeed Mahameed
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