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net/mlx5: EQ add/del CQ API 

Add API to add/del CQ to/from EQs CQ table to be used in cq.c upon CQ
creation/destruction, as CQ table is now private to eq.c.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Reviewed-by: Gal Pressman <galp@mellanox.com>
This commit is contained in:
Saeed Mahameed 2018-02-01 04:28:17 -08:00
parent d2ff4fa575
commit d5c07157dd
3 changed files with 53 additions and 45 deletions
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60
drivers/net/ethernet/mellanox/mlx5/core/cq.c
View File

@ -137,22 +137,17 @@ void mlx5_cq_event(struct mlx5_eq *eq, u32 cqn, int event_type)
int mlx5_core_create_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq,
u32 *in, int inlen)
{
int eqn = MLX5_GET(cqc, MLX5_ADDR_OF(create_cq_in, in, cq_context), c_eqn);
u32 dout[MLX5_ST_SZ_DW(destroy_cq_out)];
u32 out[MLX5_ST_SZ_DW(create_cq_out)];
u32 din[MLX5_ST_SZ_DW(destroy_cq_in)];
u32 dout[MLX5_ST_SZ_DW(destroy_cq_out)];
int eqn = MLX5_GET(cqc, MLX5_ADDR_OF(create_cq_in, in, cq_context),
c_eqn);
struct mlx5_eq *eq, *async_eq;
struct mlx5_cq_table *table;
struct mlx5_eq *eq;
int err;
async_eq = &dev->priv.eq_table.async_eq;
eq = mlx5_eqn2eq(dev, eqn);
if (IS_ERR(eq))
return PTR_ERR(eq);
table = &eq->cq_table;
memset(out, 0, sizeof(out));
MLX5_SET(create_cq_in, in, opcode, MLX5_CMD_OP_CREATE_CQ);
err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
@ -172,18 +167,14 @@ int mlx5_core_create_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq,
INIT_LIST_HEAD(&cq->tasklet_ctx.list);
/* Add to comp EQ CQ tree to recv comp events */
spin_lock_irq(&table->lock);
err = radix_tree_insert(&table->tree, cq->cqn, cq);
spin_unlock_irq(&table->lock);
err = mlx5_eq_add_cq(eq, cq);
if (err)
goto err_cmd;
/* Add to async EQ CQ tree to recv Async events */
spin_lock_irq(&async_eq->cq_table.lock);
err = radix_tree_insert(&async_eq->cq_table.tree, cq->cqn, cq);
spin_unlock_irq(&async_eq->cq_table.lock);
/* Add to async EQ CQ tree to recv async events */
err = mlx5_eq_add_cq(&dev->priv.eq_table.async_eq, cq);
if (err)
goto err_cq_table;
goto err_cq_add;
cq->pid = current->pid;
err = mlx5_debug_cq_add(dev, cq);
@ -195,10 +186,8 @@ int mlx5_core_create_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq,
return 0;
err_cq_table:
spin_lock_irq(&table->lock);
radix_tree_delete(&table->tree, cq->cqn);
spin_unlock_irq(&table->lock);
err_cq_add:
mlx5_eq_del_cq(eq, cq);
err_cmd:
memset(din, 0, sizeof(din));
memset(dout, 0, sizeof(dout));
@ -211,36 +200,17 @@ EXPORT_SYMBOL(mlx5_core_create_cq);
int mlx5_core_destroy_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq)
{
struct mlx5_cq_table *asyn_eq_cq_table = &dev->priv.eq_table.async_eq.cq_table;
struct mlx5_cq_table *table = &cq->eq->cq_table;
u32 out[MLX5_ST_SZ_DW(destroy_cq_out)] = {0};
u32 in[MLX5_ST_SZ_DW(destroy_cq_in)] = {0};
struct mlx5_core_cq *tmp;
int err;
spin_lock_irq(&asyn_eq_cq_table->lock);
tmp = radix_tree_delete(&asyn_eq_cq_table->tree, cq->cqn);
spin_unlock_irq(&asyn_eq_cq_table->lock);
if (!tmp) {
mlx5_core_warn(dev, "cq 0x%x not found in async eq cq tree\n", cq->cqn);
return -EINVAL;
}
if (tmp != cq) {
mlx5_core_warn(dev, "corruption on cqn 0x%x in async eq cq tree\n", cq->cqn);
return -EINVAL;
}
err = mlx5_eq_del_cq(&dev->priv.eq_table.async_eq, cq);
if (err)
return err;
spin_lock_irq(&table->lock);
tmp = radix_tree_delete(&table->tree, cq->cqn);
spin_unlock_irq(&table->lock);
if (!tmp) {
mlx5_core_warn(dev, "cq 0x%x not found in comp eq cq tree\n", cq->cqn);
return -EINVAL;
}
if (tmp != cq) {
mlx5_core_warn(dev, "corruption on cqn 0x%x in comp eq cq tree\n", cq->cqn);
return -EINVAL;
}
err = mlx5_eq_del_cq(cq->eq, cq);
if (err)
return err;
MLX5_SET(destroy_cq_in, in, opcode, MLX5_CMD_OP_DESTROY_CQ);
MLX5_SET(destroy_cq_in, in, cqn, cq->cqn);

34
drivers/net/ethernet/mellanox/mlx5/core/eq.c
View File

@ -704,6 +704,40 @@ int mlx5_destroy_unmap_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq)
}
EXPORT_SYMBOL_GPL(mlx5_destroy_unmap_eq);
int mlx5_eq_add_cq(struct mlx5_eq *eq, struct mlx5_core_cq *cq)
{
struct mlx5_cq_table *table = &eq->cq_table;
int err;
spin_lock_irq(&table->lock);
err = radix_tree_insert(&table->tree, cq->cqn, cq);
spin_unlock_irq(&table->lock);
return err;
}
int mlx5_eq_del_cq(struct mlx5_eq *eq, struct mlx5_core_cq *cq)
{
struct mlx5_cq_table *table = &eq->cq_table;
struct mlx5_core_cq *tmp;
spin_lock_irq(&table->lock);
tmp = radix_tree_delete(&table->tree, cq->cqn);
spin_unlock_irq(&table->lock);
if (!tmp) {
mlx5_core_warn(eq->dev, "cq 0x%x not found in eq 0x%x tree\n", eq->eqn, cq->cqn);
return -ENOENT;
}
if (tmp != cq) {
mlx5_core_warn(eq->dev, "corruption on cqn 0x%x in eq 0x%x\n", eq->eqn, cq->cqn);
return -EINVAL;
}
return 0;
}
int mlx5_eq_init(struct mlx5_core_dev *dev)
{
int err;

4
drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
View File

@ -38,6 +38,7 @@
#include <linux/sched.h>
#include <linux/if_link.h>
#include <linux/firmware.h>
#include <linux/mlx5/cq.h>
#define DRIVER_NAME "mlx5_core"
#define DRIVER_VERSION "5.0-0"
@ -115,6 +116,9 @@ int mlx5_destroy_scheduling_element_cmd(struct mlx5_core_dev *dev, u8 hierarchy,
u32 element_id);
int mlx5_wait_for_vf_pages(struct mlx5_core_dev *dev);
u64 mlx5_read_internal_timer(struct mlx5_core_dev *dev);
int mlx5_eq_add_cq(struct mlx5_eq *eq, struct mlx5_core_cq *cq);
int mlx5_eq_del_cq(struct mlx5_eq *eq, struct mlx5_core_cq *cq);
struct mlx5_eq *mlx5_eqn2eq(struct mlx5_core_dev *dev, int eqn);
u32 mlx5_eq_poll_irq_disabled(struct mlx5_eq *eq);
void mlx5_cq_tasklet_cb(unsigned long data);