From 38b124cb4ee5d3567cd138af33bbd6fefbfdb703 Mon Sep 17 00:00:00 2001 From: Amit Cohen Date: Tue, 2 Apr 2024 15:54:17 +0200 Subject: mlxsw: pci: Arm CQ doorbell regardless of number of completions Currently, as part of mlxsw_pci_cq_tasklet(), we check if any item was handled, and only in such case we arm doorbell. This is unlikely case, as we schedule tasklet only for CQs that we get an event for them, which means that they contain completions to handle. Remove this check, which is supposed to be true always, and even if it is false, it is not a mistake to ring the doorbell. We can warn on such case, but it is not really worth to add a check which will be run for each CQ handling when we do not expect to reach it and it does not point to logic error that should be handled. Signed-off-by: Amit Cohen Reviewed-by: Ido Schimmel Signed-off-by: Petr Machata Reviewed-by: Simon Horman Link: https://lore.kernel.org/r/f8efa481bfe7bebb9f93bb803f44ab7da77f53e6.1712062203.git.petrm@nvidia.com Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/mellanox/mlxsw/pci.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlxsw/pci.c b/drivers/net/ethernet/mellanox/mlxsw/pci.c index cd871dbfeb02..799445111144 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/pci.c +++ b/drivers/net/ethernet/mellanox/mlxsw/pci.c @@ -706,8 +706,8 @@ static void mlxsw_pci_cq_tasklet(struct tasklet_struct *t) if (++items == credits) break; } - if (items) - mlxsw_pci_queue_doorbell_arm_consumer_ring(mlxsw_pci, q); + + mlxsw_pci_queue_doorbell_arm_consumer_ring(mlxsw_pci, q); } static int mlxsw_pci_cq_init(struct mlxsw_pci *mlxsw_pci, char *mbox, -- cgit