diff mbox series

[net,03/10] net/mlx5: offset comp irq index in name by one

Message ID 20240326144646.2078893-4-saeed@kernel.org (mailing list archive)
State Changes Requested
Delegated to: Netdev Maintainers
Headers show
Series [net,01/10] net/mlx5: E-switch, store eswitch pointer before registering devlink_param | expand

Checks

Context Check Description
netdev/series_format success Pull request is its own cover letter
netdev/tree_selection success Clearly marked for net
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag present in non-next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 944 this patch: 944
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers fail 1 blamed authors not CCed: jacob.e.keller@intel.com; 1 maintainers not CCed: jacob.e.keller@intel.com
netdev/build_clang success Errors and warnings before: 955 this patch: 955
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success Fixes tag looks correct
netdev/build_allmodconfig_warn success Errors and warnings before: 955 this patch: 955
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 22 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0
netdev/contest success net-next-2024-03-27--15-00 (tests: 952)

Commit Message

Saeed Mahameed March 26, 2024, 2:46 p.m. UTC 
From: Michael Liang <mliang@purestorage.com>

The mlx5 comp irq name scheme is changed a little bit between
commit 3663ad34bc70 ("net/mlx5: Shift control IRQ to the last index")
and commit 3354822cde5a ("net/mlx5: Use dynamic msix vectors allocation").
The index in the comp irq name used to start from 0 but now it starts
from 1. There is nothing critical here, but it's harmless to change
back to the old behavior, a.k.a starting from 0.

Fixes: 3354822cde5a ("net/mlx5: Use dynamic msix vectors allocation")
Reviewed-by: Mohamed Khalfella <mkhalfella@purestorage.com>
Reviewed-by: Yuanyuan Zhong <yzhong@purestorage.com>
Signed-off-by: Michael Liang <mliang@purestorage.com>
Reviewed-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c b/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c
index 4dcf995cb1a2..6bac8ad70ba6 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c
@@ -19,6 +19,7 @@ 
 #define MLX5_IRQ_CTRL_SF_MAX 8
 /* min num of vectors for SFs to be enabled */
 #define MLX5_IRQ_VEC_COMP_BASE_SF 2
+#define MLX5_IRQ_VEC_COMP_BASE 1
 
 #define MLX5_EQ_SHARE_IRQ_MAX_COMP (8)
 #define MLX5_EQ_SHARE_IRQ_MAX_CTRL (UINT_MAX)
@@ -246,6 +247,7 @@  static void irq_set_name(struct mlx5_irq_pool *pool, char *name, int vecidx)
 		return;
 	}
 
+	vecidx -= MLX5_IRQ_VEC_COMP_BASE;
 	snprintf(name, MLX5_MAX_IRQ_NAME, "mlx5_comp%d", vecidx);
 }
 
@@ -585,7 +587,7 @@  struct mlx5_irq *mlx5_irq_request_vector(struct mlx5_core_dev *dev, u16 cpu,
 	struct mlx5_irq_table *table = mlx5_irq_table_get(dev);
 	struct mlx5_irq_pool *pool = table->pcif_pool;
 	struct irq_affinity_desc af_desc;
-	int offset = 1;
+	int offset = MLX5_IRQ_VEC_COMP_BASE;
 
 	if (!pool->xa_num_irqs.max)
 		offset = 0;