diff options
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c | 26 | ||||
| -rw-r--r-- | include/linux/mlx5/eq.h | 1 |
2 files changed, 19 insertions, 8 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c b/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c index a66144b54fc8..830444f927d4 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c @@ -196,6 +196,12 @@ static void irq_sf_set_name(struct mlx5_irq_pool *pool, char *name, int vecidx) static void irq_set_name(struct mlx5_irq_pool *pool, char *name, int vecidx) { + if (!pool->xa_num_irqs.max) { + /* in case we only have a single irq for the device */ + snprintf(name, MLX5_MAX_IRQ_NAME, "mlx5_combined%d", vecidx); + return; + } + if (vecidx == pool->xa_num_irqs.max) { snprintf(name, MLX5_MAX_IRQ_NAME, "mlx5_async%d", vecidx); return; @@ -204,6 +210,11 @@ static void irq_set_name(struct mlx5_irq_pool *pool, char *name, int vecidx) snprintf(name, MLX5_MAX_IRQ_NAME, "mlx5_comp%d", vecidx); } +static bool irq_pool_is_sf_pool(struct mlx5_irq_pool *pool) +{ + return !strncmp("mlx5_sf", pool->name, strlen("mlx5_sf")); +} + static struct mlx5_irq *irq_request(struct mlx5_irq_pool *pool, int i) { struct mlx5_core_dev *dev = pool->dev; @@ -215,7 +226,7 @@ static struct mlx5_irq *irq_request(struct mlx5_irq_pool *pool, int i) if (!irq) return ERR_PTR(-ENOMEM); irq->irqn = pci_irq_vector(dev->pdev, i); - if (!pool->name[0]) + if (!irq_pool_is_sf_pool(pool)) irq_set_name(pool, name, i); else irq_sf_set_name(pool, name, i); @@ -385,6 +396,9 @@ irq_pool_request_vector(struct mlx5_irq_pool *pool, int vecidx, if (IS_ERR(irq) || !affinity) goto unlock; cpumask_copy(irq->mask, affinity); + if (!irq_pool_is_sf_pool(pool) && !pool->xa_num_irqs.max && + cpumask_empty(irq->mask)) + cpumask_set_cpu(0, irq->mask); irq_set_affinity_hint(irq->irqn, irq->mask); unlock: mutex_unlock(&pool->lock); @@ -577,6 +591,8 @@ void mlx5_irq_table_cleanup(struct mlx5_core_dev *dev) int mlx5_irq_table_get_num_comp(struct mlx5_irq_table *table) { + if (!table->pf_pool->xa_num_irqs.max) + return 1; return table->pf_pool->xa_num_irqs.max - table->pf_pool->xa_num_irqs.min; } @@ -592,19 +608,15 @@ int mlx5_irq_table_create(struct mlx5_core_dev *dev) if (mlx5_core_is_sf(dev)) return 0; - pf_vec = MLX5_CAP_GEN(dev, num_ports) * num_online_cpus() + - MLX5_IRQ_VEC_COMP_BASE; + pf_vec = MLX5_CAP_GEN(dev, num_ports) * num_online_cpus() + 1; pf_vec = min_t(int, pf_vec, num_eqs); - if (pf_vec <= MLX5_IRQ_VEC_COMP_BASE) - return -ENOMEM; total_vec = pf_vec; if (mlx5_sf_max_functions(dev)) total_vec += MLX5_IRQ_CTRL_SF_MAX + MLX5_COMP_EQS_PER_SF * mlx5_sf_max_functions(dev); - total_vec = pci_alloc_irq_vectors(dev->pdev, MLX5_IRQ_VEC_COMP_BASE + 1, - total_vec, PCI_IRQ_MSIX); + total_vec = pci_alloc_irq_vectors(dev->pdev, 1, total_vec, PCI_IRQ_MSIX); if (total_vec < 0) return total_vec; pf_vec = min(pf_vec, total_vec); diff --git a/include/linux/mlx5/eq.h b/include/linux/mlx5/eq.h index cea6ecb4b73e..ea3ff5a8ced3 100644 --- a/include/linux/mlx5/eq.h +++ b/include/linux/mlx5/eq.h @@ -4,7 +4,6 @@ #ifndef MLX5_CORE_EQ_H #define MLX5_CORE_EQ_H -#define MLX5_IRQ_VEC_COMP_BASE 1 #define MLX5_NUM_CMD_EQE (32) #define MLX5_NUM_ASYNC_EQE (0x1000) #define MLX5_NUM_SPARE_EQE (0x80) |