From: Shay Drory Date: Mon, 10 Mar 2025 22:01:41 +0000 (+0200) Subject: net/mlx5: Fix incorrect IRQ pool usage when releasing IRQs X-Git-Tag: v6.14-rc7~27^2~2^2~3 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=32d2724db5b2361ab293427ccd5c24f4f2bcca14;p=thirdparty%2Flinux.git net/mlx5: Fix incorrect IRQ pool usage when releasing IRQs mlx5_irq_pool_get() is a getter for completion IRQ pool only. However, after the cited commit, mlx5_irq_pool_get() is called during ctrl IRQ release flow to retrieve the pool, resulting in the use of an incorrect IRQ pool. Hence, use the newly introduced mlx5_irq_get_pool() getter to retrieve the correct IRQ pool based on the IRQ itself. While at it, rename mlx5_irq_pool_get() to mlx5_irq_table_get_comp_irq_pool() which accurately reflects its purpose and improves code readability. Fixes: 0477d5168bbb ("net/mlx5: Expose SFs IRQs") Signed-off-by: Shay Drory Reviewed-by: Maher Sanalla Signed-off-by: Tariq Toukan Reviewed-by: Michal Swiatkowski Link: https://patch.msgid.link/1741644104-97767-4-git-send-email-tariqt@nvidia.com Signed-off-by: Paolo Abeni --- diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eq.c b/drivers/net/ethernet/mellanox/mlx5/core/eq.c index 2b229b6226c6a..dfb079e59d858 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c @@ -871,8 +871,8 @@ static void comp_irq_release_sf(struct mlx5_core_dev *dev, u16 vecidx) static int comp_irq_request_sf(struct mlx5_core_dev *dev, u16 vecidx) { + struct mlx5_irq_pool *pool = mlx5_irq_table_get_comp_irq_pool(dev); struct mlx5_eq_table *table = dev->priv.eq_table; - struct mlx5_irq_pool *pool = mlx5_irq_pool_get(dev); struct irq_affinity_desc af_desc = {}; struct mlx5_irq *irq; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/irq_affinity.c b/drivers/net/ethernet/mellanox/mlx5/core/irq_affinity.c index 1477db7f5307e..2691d88cdee1f 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/irq_affinity.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/irq_affinity.c @@ -175,7 +175,7 @@ unlock: void mlx5_irq_affinity_irq_release(struct mlx5_core_dev *dev, struct mlx5_irq *irq) { - struct mlx5_irq_pool *pool = mlx5_irq_pool_get(dev); + struct mlx5_irq_pool *pool = mlx5_irq_get_pool(irq); int cpu; cpu = cpumask_first(mlx5_irq_get_affinity_mask(irq)); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_irq.h b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_irq.h index 0881e961d8b17..586688da9940e 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_irq.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_irq.h @@ -10,12 +10,15 @@ struct mlx5_irq; struct cpu_rmap; +struct mlx5_irq_pool; int mlx5_irq_table_init(struct mlx5_core_dev *dev); void mlx5_irq_table_cleanup(struct mlx5_core_dev *dev); int mlx5_irq_table_create(struct mlx5_core_dev *dev); void mlx5_irq_table_destroy(struct mlx5_core_dev *dev); void mlx5_irq_table_free_irqs(struct mlx5_core_dev *dev); +struct mlx5_irq_pool * +mlx5_irq_table_get_comp_irq_pool(struct mlx5_core_dev *dev); int mlx5_irq_table_get_num_comp(struct mlx5_irq_table *table); int mlx5_irq_table_get_sfs_vec(struct mlx5_irq_table *table); struct mlx5_irq_table *mlx5_irq_table_get(struct mlx5_core_dev *dev); @@ -38,7 +41,6 @@ struct cpumask *mlx5_irq_get_affinity_mask(struct mlx5_irq *irq); int mlx5_irq_get_index(struct mlx5_irq *irq); int mlx5_irq_get_irq(const struct mlx5_irq *irq); -struct mlx5_irq_pool; #ifdef CONFIG_MLX5_SF struct mlx5_irq *mlx5_irq_affinity_irq_request_auto(struct mlx5_core_dev *dev, struct cpumask *used_cpus, u16 vecidx); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c b/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c index d9362eabc6a1c..2c5f850c31f68 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c @@ -378,6 +378,11 @@ int mlx5_irq_get_index(struct mlx5_irq *irq) return irq->map.index; } +struct mlx5_irq_pool *mlx5_irq_get_pool(struct mlx5_irq *irq) +{ + return irq->pool; +} + /* irq_pool API */ /* requesting an irq from a given pool according to given index */ @@ -405,18 +410,20 @@ static struct mlx5_irq_pool *sf_ctrl_irq_pool_get(struct mlx5_irq_table *irq_tab return irq_table->sf_ctrl_pool; } -static struct mlx5_irq_pool *sf_irq_pool_get(struct mlx5_irq_table *irq_table) +static struct mlx5_irq_pool * +sf_comp_irq_pool_get(struct mlx5_irq_table *irq_table) { return irq_table->sf_comp_pool; } -struct mlx5_irq_pool *mlx5_irq_pool_get(struct mlx5_core_dev *dev) +struct mlx5_irq_pool * +mlx5_irq_table_get_comp_irq_pool(struct mlx5_core_dev *dev) { struct mlx5_irq_table *irq_table = mlx5_irq_table_get(dev); struct mlx5_irq_pool *pool = NULL; if (mlx5_core_is_sf(dev)) - pool = sf_irq_pool_get(irq_table); + pool = sf_comp_irq_pool_get(irq_table); /* In some configs, there won't be a pool of SFs IRQs. Hence, returning * the PF IRQs pool in case the SF pool doesn't exist. diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.h b/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.h index c4d377f8df308..cc064425fe160 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.h @@ -28,7 +28,6 @@ struct mlx5_irq_pool { struct mlx5_core_dev *dev; }; -struct mlx5_irq_pool *mlx5_irq_pool_get(struct mlx5_core_dev *dev); static inline bool mlx5_irq_pool_is_sf_pool(struct mlx5_irq_pool *pool) { return !strncmp("mlx5_sf", pool->name, strlen("mlx5_sf")); @@ -40,5 +39,6 @@ struct mlx5_irq *mlx5_irq_alloc(struct mlx5_irq_pool *pool, int i, int mlx5_irq_get_locked(struct mlx5_irq *irq); int mlx5_irq_read_locked(struct mlx5_irq *irq); int mlx5_irq_put(struct mlx5_irq *irq); +struct mlx5_irq_pool *mlx5_irq_get_pool(struct mlx5_irq *irq); #endif /* __PCI_IRQ_H__ */