diff options
author | Maher Sanalla <msanalla@nvidia.com> | 2023-06-11 19:55:02 +0300 |
---|---|---|
committer | Saeed Mahameed <saeedm@nvidia.com> | 2023-08-07 20:53:51 +0300 |
commit | e3e56775e91398df95c610bfc9bf4025db7dcf66 (patch) | |
tree | 58d884703bc2f0c6b5f331e2912f36646bd6ae7d /drivers | |
parent | 273c697fdedc65f8b423a652fb248860a3dbf36d (diff) | |
download | linux-e3e56775e91398df95c610bfc9bf4025db7dcf66.tar.xz |
net/mlx5: Implement single completion EQ create/destroy methods
Currently, create_comp_eqs() function handles the creation of all
completion EQs for all the vectors on driver load. While on driver
unload, destroy_comp_eqs() performs the equivalent job.
In preparation for dynamic EQ creation, replace create_comp_eqs() /
destroy_comp_eqs() with create_comp_eq() / destroy_comp_eq() functions
which will receive a vector index and allocate/destroy an EQ for that
specific vector. Thus, allowing more flexibility in the management
of completion EQs.
Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
Reviewed-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/eq.c | 137 |
1 files changed, 66 insertions, 71 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eq.c b/drivers/net/ethernet/mellanox/mlx5/core/eq.c index b343c0fd621e..41fa15757101 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c @@ -927,28 +927,19 @@ static int alloc_rmap(struct mlx5_core_dev *mdev) { return 0; } static void free_rmap(struct mlx5_core_dev *mdev) {} #endif -static void destroy_comp_eqs(struct mlx5_core_dev *dev) +static void destroy_comp_eq(struct mlx5_core_dev *dev, struct mlx5_eq_comp *eq, u16 vecidx) { struct mlx5_eq_table *table = dev->priv.eq_table; - struct mlx5_eq_comp *eq; - struct mlx5_irq *irq; - unsigned long index; - - xa_for_each(&table->comp_eqs, index, eq) { - xa_erase(&table->comp_eqs, index); - mlx5_eq_disable(dev, &eq->core, &eq->irq_nb); - if (destroy_unmap_eq(dev, &eq->core)) - mlx5_core_warn(dev, "failed to destroy comp EQ 0x%x\n", - eq->core.eqn); - tasklet_disable(&eq->tasklet_ctx.task); - kfree(eq); - table->curr_comp_eqs--; - } - xa_for_each(&table->comp_irqs, index, irq) - comp_irq_release(dev, index); - - free_rmap(dev); + xa_erase(&table->comp_eqs, vecidx); + mlx5_eq_disable(dev, &eq->core, &eq->irq_nb); + if (destroy_unmap_eq(dev, &eq->core)) + mlx5_core_warn(dev, "failed to destroy comp EQ 0x%x\n", + eq->core.eqn); + tasklet_disable(&eq->tasklet_ctx.task); + kfree(eq); + comp_irq_release(dev, vecidx); + table->curr_comp_eqs--; } static u16 comp_eq_depth_devlink_param_get(struct mlx5_core_dev *dev) @@ -966,79 +957,62 @@ static u16 comp_eq_depth_devlink_param_get(struct mlx5_core_dev *dev) return MLX5_COMP_EQ_SIZE; } -static int create_comp_eqs(struct mlx5_core_dev *dev) +static int create_comp_eq(struct mlx5_core_dev *dev, u16 vecidx) { struct mlx5_eq_table *table = dev->priv.eq_table; + struct mlx5_eq_param param = {}; struct mlx5_eq_comp *eq; struct mlx5_irq *irq; - unsigned long index; - int vecidx; int nent; int err; - err = alloc_rmap(dev); + err = comp_irq_request(dev, vecidx); if (err) return err; - for (vecidx = 0; vecidx < table->max_comp_eqs; vecidx++) { - err = comp_irq_request(dev, vecidx); - if (err < 0) - break; - } - - if (!vecidx) - goto err_irqs_req; - - table->max_comp_eqs = vecidx; nent = comp_eq_depth_devlink_param_get(dev); - xa_for_each(&table->comp_irqs, index, irq) - { - struct mlx5_eq_param param = {}; + eq = kzalloc_node(sizeof(*eq), GFP_KERNEL, dev->priv.numa_node); + if (!eq) { + err = -ENOMEM; + goto clean_irq; + } - eq = kzalloc_node(sizeof(*eq), GFP_KERNEL, dev->priv.numa_node); - if (!eq) { - err = -ENOMEM; - goto clean; - } + INIT_LIST_HEAD(&eq->tasklet_ctx.list); + INIT_LIST_HEAD(&eq->tasklet_ctx.process_list); + spin_lock_init(&eq->tasklet_ctx.lock); + tasklet_setup(&eq->tasklet_ctx.task, mlx5_cq_tasklet_cb); - INIT_LIST_HEAD(&eq->tasklet_ctx.list); - INIT_LIST_HEAD(&eq->tasklet_ctx.process_list); - spin_lock_init(&eq->tasklet_ctx.lock); - tasklet_setup(&eq->tasklet_ctx.task, mlx5_cq_tasklet_cb); - - eq->irq_nb.notifier_call = mlx5_eq_comp_int; - param = (struct mlx5_eq_param) { - .irq = irq, - .nent = nent, - }; - - err = create_map_eq(dev, &eq->core, ¶m); - if (err) - goto clean_eq; - err = mlx5_eq_enable(dev, &eq->core, &eq->irq_nb); - if (err) { - destroy_unmap_eq(dev, &eq->core); - goto clean_eq; - } + irq = xa_load(&table->comp_irqs, vecidx); + eq->irq_nb.notifier_call = mlx5_eq_comp_int; + param = (struct mlx5_eq_param) { + .irq = irq, + .nent = nent, + }; - mlx5_core_dbg(dev, "allocated completion EQN %d\n", eq->core.eqn); - err = xa_err(xa_store(&table->comp_eqs, index, eq, GFP_KERNEL)); - if (err) - goto disable_eq; - table->curr_comp_eqs++; + err = create_map_eq(dev, &eq->core, ¶m); + if (err) + goto clean_eq; + err = mlx5_eq_enable(dev, &eq->core, &eq->irq_nb); + if (err) { + destroy_unmap_eq(dev, &eq->core); + goto clean_eq; } + mlx5_core_dbg(dev, "allocated completion EQN %d\n", eq->core.eqn); + err = xa_err(xa_store(&table->comp_eqs, vecidx, eq, GFP_KERNEL)); + if (err) + goto disable_eq; + + table->curr_comp_eqs++; return 0; disable_eq: mlx5_eq_disable(dev, &eq->core, &eq->irq_nb); clean_eq: kfree(eq); -clean: - destroy_comp_eqs(dev); -err_irqs_req: - free_rmap(dev); +clean_irq: + comp_irq_release(dev, vecidx); return err; } @@ -1161,6 +1135,7 @@ int mlx5_eq_table_create(struct mlx5_core_dev *dev) { struct mlx5_eq_table *eq_table = dev->priv.eq_table; int err; + int i; eq_table->max_comp_eqs = get_num_eqs(dev); err = create_async_eqs(dev); @@ -1169,8 +1144,19 @@ int mlx5_eq_table_create(struct mlx5_core_dev *dev) goto err_async_eqs; } - err = create_comp_eqs(dev); + err = alloc_rmap(dev); if (err) { + mlx5_core_err(dev, "Failed to allocate rmap\n"); + goto err_rmap; + } + + for (i = 0; i < eq_table->max_comp_eqs; i++) { + err = create_comp_eq(dev, i); + if (err < 0) + break; + } + + if (!i) { mlx5_core_err(dev, "Failed to create completion EQs\n"); goto err_comp_eqs; } @@ -1178,6 +1164,8 @@ int mlx5_eq_table_create(struct mlx5_core_dev *dev) return 0; err_comp_eqs: + free_rmap(dev); +err_rmap: destroy_async_eqs(dev); err_async_eqs: return err; @@ -1185,7 +1173,14 @@ err_async_eqs: void mlx5_eq_table_destroy(struct mlx5_core_dev *dev) { - destroy_comp_eqs(dev); + struct mlx5_eq_table *table = dev->priv.eq_table; + struct mlx5_eq_comp *eq; + unsigned long index; + + xa_for_each(&table->comp_eqs, index, eq) + destroy_comp_eq(dev, eq, index); + + free_rmap(dev); destroy_async_eqs(dev); } |