net/mlx4: Track RX allocation failures in a stat

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mlx4_en_alloc_frags currently returns -ENOMEM when mlx4_alloc_page
fails but does not increment a stat field when this occurs.

A new field called alloc_fail has been added to struct mlx4_en_rx_ring
which is now incremented in mlx4_en_rx_ring when -ENOMEM occurs.

Signed-off-by: Joe Damato <jdamato@fastly.com>
Tested-by: Martin Karsten <mkarsten@uwaterloo.ca>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20240528181139.515070-2-jdamato@fastly.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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This commit is contained in:

Joe Damato 2024-05-28 18:11:36 +00:00 • committed by Jakub Kicinski

parent 95cd03f32a

commit 6166bb0cac

3 changed files with 5 additions and 1 deletions

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1

drivers/net/ethernet/mellanox/mlx4/en_netdev.c

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4

drivers/net/ethernet/mellanox/mlx4/en_rx.c

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1

drivers/net/ethernet/mellanox/mlx4/mlx4_en.h

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