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

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>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 96fb3fa32d63e9f91af98fbc1fcd7e75fc68f2d5..c099f5a6124ec4d9cc68dea6f55af2422e5e85de 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -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);