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net/mlx5e: Encapsulate open/close queues into a function

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Create new functions mlx5e_{open,close}_queues to encapsulate opening
and closing RQs and SQs, and call the new functions from
mlx5e_{open,close}_channel. It simplifies the existing functions a bit
and prepares them for the upcoming AF_XDP changes.

Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Maxim Mikityanskiy 2019-06-26 17:35:36 +03:00 committed by Daniel Borkmann
parent a011b49f4e
commit 0a06382fa4
1 changed files with 73 additions and 52 deletions
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125
drivers/net/ethernet/mellanox/mlx5/core/en_main.c
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@ -1768,49 +1768,16 @@ static void mlx5e_free_xps_cpumask(struct mlx5e_channel *c)
free_cpumask_var(c->xps_cpumask);
}
static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix,
struct mlx5e_params *params,
struct mlx5e_channel_param *cparam,
struct mlx5e_channel **cp)
static int mlx5e_open_queues(struct mlx5e_channel *c,
struct mlx5e_params *params,
struct mlx5e_channel_param *cparam)
{
int cpu = cpumask_first(mlx5_comp_irq_get_affinity_mask(priv->mdev, ix));
struct net_dim_cq_moder icocq_moder = {0, 0};
struct net_device *netdev = priv->netdev;
struct mlx5e_channel *c;
unsigned int irq;
int err;
int eqn;
err = mlx5_vector2eqn(priv->mdev, ix, &eqn, &irq);
if (err)
return err;
c = kvzalloc_node(sizeof(*c), GFP_KERNEL, cpu_to_node(cpu));
if (!c)
return -ENOMEM;
c->priv = priv;
c->mdev = priv->mdev;
c->tstamp = &priv->tstamp;
c->ix = ix;
c->cpu = cpu;
c->pdev = priv->mdev->device;
c->netdev = priv->netdev;
c->mkey_be = cpu_to_be32(priv->mdev->mlx5e_res.mkey.key);
c->num_tc = params->num_tc;
c->xdp = !!params->xdp_prog;
c->stats = &priv->channel_stats[ix].ch;
c->irq_desc = irq_to_desc(irq);
err = mlx5e_alloc_xps_cpumask(c, params);
if (err)
goto err_free_channel;
netif_napi_add(netdev, &c->napi, mlx5e_napi_poll, 64);
err = mlx5e_open_cq(c, icocq_moder, &cparam->icosq_cq, &c->icosq.cq);
if (err)
goto err_napi_del;
return err;
err = mlx5e_open_tx_cqs(c, params, cparam);
if (err)
@ -1855,8 +1822,6 @@ static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix,
if (err)
goto err_close_rq;
*cp = c;
return 0;
err_close_rq:
@ -1874,6 +1839,7 @@ err_close_icosq:
err_disable_napi:
napi_disable(&c->napi);
if (c->xdp)
mlx5e_close_cq(&c->rq_xdpsq.cq);
@ -1889,6 +1855,73 @@ err_close_tx_cqs:
err_close_icosq_cq:
mlx5e_close_cq(&c->icosq.cq);
return err;
}
static void mlx5e_close_queues(struct mlx5e_channel *c)
{
mlx5e_close_xdpsq(&c->xdpsq);
mlx5e_close_rq(&c->rq);
if (c->xdp)
mlx5e_close_xdpsq(&c->rq_xdpsq);
mlx5e_close_sqs(c);
mlx5e_close_icosq(&c->icosq);
napi_disable(&c->napi);
if (c->xdp)
mlx5e_close_cq(&c->rq_xdpsq.cq);
mlx5e_close_cq(&c->rq.cq);
mlx5e_close_cq(&c->xdpsq.cq);
mlx5e_close_tx_cqs(c);
mlx5e_close_cq(&c->icosq.cq);
}
static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix,
struct mlx5e_params *params,
struct mlx5e_channel_param *cparam,
struct mlx5e_channel **cp)
{
int cpu = cpumask_first(mlx5_comp_irq_get_affinity_mask(priv->mdev, ix));
struct net_device *netdev = priv->netdev;
struct mlx5e_channel *c;
unsigned int irq;
int err;
int eqn;
err = mlx5_vector2eqn(priv->mdev, ix, &eqn, &irq);
if (err)
return err;
c = kvzalloc_node(sizeof(*c), GFP_KERNEL, cpu_to_node(cpu));
if (!c)
return -ENOMEM;
c->priv = priv;
c->mdev = priv->mdev;
c->tstamp = &priv->tstamp;
c->ix = ix;
c->cpu = cpu;
c->pdev = priv->mdev->device;
c->netdev = priv->netdev;
c->mkey_be = cpu_to_be32(priv->mdev->mlx5e_res.mkey.key);
c->num_tc = params->num_tc;
c->xdp = !!params->xdp_prog;
c->stats = &priv->channel_stats[ix].ch;
c->irq_desc = irq_to_desc(irq);
err = mlx5e_alloc_xps_cpumask(c, params);
if (err)
goto err_free_channel;
netif_napi_add(netdev, &c->napi, mlx5e_napi_poll, 64);
err = mlx5e_open_queues(c, params, cparam);
if (unlikely(err))
goto err_napi_del;
*cp = c;
return 0;
err_napi_del:
netif_napi_del(&c->napi);
mlx5e_free_xps_cpumask(c);
@ -1920,19 +1953,7 @@ static void mlx5e_deactivate_channel(struct mlx5e_channel *c)
static void mlx5e_close_channel(struct mlx5e_channel *c)
{
mlx5e_close_xdpsq(&c->xdpsq);
mlx5e_close_rq(&c->rq);
if (c->xdp)
mlx5e_close_xdpsq(&c->rq_xdpsq);
mlx5e_close_sqs(c);
mlx5e_close_icosq(&c->icosq);
napi_disable(&c->napi);
if (c->xdp)
mlx5e_close_cq(&c->rq_xdpsq.cq);
mlx5e_close_cq(&c->rq.cq);
mlx5e_close_cq(&c->xdpsq.cq);
mlx5e_close_tx_cqs(c);
mlx5e_close_cq(&c->icosq.cq);
mlx5e_close_queues(c);
netif_napi_del(&c->napi);
mlx5e_free_xps_cpumask(c);