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Message-Id: <1561559738-4213-15-git-send-email-tariqt@mellanox.com>
Date: Wed, 26 Jun 2019 17:35:36 +0300
From: Tariq Toukan <tariqt@...lanox.com>
To: Alexei Starovoitov <ast@...nel.org>,
Daniel Borkmann <daniel@...earbox.net>, bjorn.topel@...el.com,
Magnus Karlsson <magnus.karlsson@...el.com>
Cc: "bpf@...r.kernel.org" <bpf@...r.kernel.org>,
"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
Jonathan Lemon <bsd@...com>,
"David S. Miller" <davem@...emloft.net>,
Maxim Mikityanskiy <maximmi@...lanox.com>,
Tariq Toukan <tariqt@...lanox.com>
Subject: [PATCH bpf-next V6 14/16] net/mlx5e: Encapsulate open/close queues into a function
From: Maxim Mikityanskiy <maximmi@...lanox.com>
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@...lanox.com>
Signed-off-by: Tariq Toukan <tariqt@...lanox.com>
Acked-by: Saeed Mahameed <saeedm@...lanox.com>
---
drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 125 +++++++++++++---------
1 file changed, 73 insertions(+), 52 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 96fb3fa32d63..c099f5a6124e 100644
--- 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 @@ static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix,
err_disable_napi:
napi_disable(&c->napi);
+
if (c->xdp)
mlx5e_close_cq(&c->rq_xdpsq.cq);
@@ -1889,6 +1855,73 @@ static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix,
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);
--
1.8.3.1
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