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net/mlx5: Arm only EQs with EQEs 

Currently, when more than one EQ is sharing an IRQ, and this IRQ is
being interrupted, all the EQs sharing the IRQ will be armed. This is
done regardless of whether an EQ has EQE.
When multiple EQs are sharing an IRQ, one or more EQs can have valid
EQEs.

Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Parav Pandit <parav@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Shay Drory 2020-12-01 14:42:05 -08:00 committed by Saeed Mahameed
parent fe8395168d
commit d894892dda
1 changed files with 2 additions and 4 deletions
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6
drivers/net/ethernet/mellanox/mlx5/core/eq.c
View File

@ -136,7 +136,7 @@ static int mlx5_eq_comp_int(struct notifier_block *nb,
eqe = next_eqe_sw(eq);
if (!eqe)
goto out;
return 0;
do {
struct mlx5_core_cq *cq;
@ -161,8 +161,6 @@ static int mlx5_eq_comp_int(struct notifier_block *nb,
++eq->cons_index;
} while ((++num_eqes < MLX5_EQ_POLLING_BUDGET) && (eqe = next_eqe_sw(eq)));
out:
eq_update_ci(eq, 1);
if (cqn != -1)
@ -250,9 +248,9 @@ static int mlx5_eq_async_int(struct notifier_block *nb,
++eq->cons_index;
} while ((++num_eqes < MLX5_EQ_POLLING_BUDGET) && (eqe = next_eqe_sw(eq)));
eq_update_ci(eq, 1);
out:
eq_update_ci(eq, 1);
mlx5_eq_async_int_unlock(eq_async, recovery, &flags);
return unlikely(recovery) ? num_eqes : 0;