6.12-stable review patch. If anyone has any objections, please let me know.
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From: Shay Drory shayd@nvidia.com
[ Upstream commit 32d2724db5b2361ab293427ccd5c24f4f2bcca14 ]
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 shayd@nvidia.com Reviewed-by: Maher Sanalla msanalla@nvidia.com Signed-off-by: Tariq Toukan tariqt@nvidia.com Reviewed-by: Michal Swiatkowski michal.swiatkowski@linux.intel.com Link: https://patch.msgid.link/1741644104-97767-4-git-send-email-tariqt@nvidia.com Signed-off-by: Paolo Abeni pabeni@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/mellanox/mlx5/core/eq.c | 2 +- .../net/ethernet/mellanox/mlx5/core/irq_affinity.c | 2 +- drivers/net/ethernet/mellanox/mlx5/core/mlx5_irq.h | 4 +++- drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c | 13 ++++++++++--- drivers/net/ethernet/mellanox/mlx5/core/pci_irq.h | 2 +- 5 files changed, 16 insertions(+), 7 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eq.c b/drivers/net/ethernet/mellanox/mlx5/core/eq.c index 68cb86b37e561..4241cf07a0306 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c @@ -887,8 +887,8 @@ 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 @@ mlx5_irq_affinity_request(struct mlx5_core_dev *dev, struct mlx5_irq_pool *pool,
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__ */