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From: Maxim Mikityanskiy <maximmi@mellanox.com>
To: "Alexei Starovoitov" <ast@kernel.org>,
	"Daniel Borkmann" <daniel@iogearbox.net>,
	"Björn Töpel" <bjorn.topel@intel.com>,
	"Magnus Karlsson" <magnus.karlsson@intel.com>
Cc: "bpf@vger.kernel.org" <bpf@vger.kernel.org>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	"David S. Miller" <davem@davemloft.net>,
	Saeed Mahameed <saeedm@mellanox.com>, Jonathan Lemon <bsd@fb.com>,
	Tariq Toukan <tariqt@mellanox.com>,
	Martin KaFai Lau <kafai@fb.com>, Song Liu <songliubraving@fb.com>,
	Yonghong Song <yhs@fb.com>,
	Jakub Kicinski <jakub.kicinski@netronome.com>,
	Maciej Fijalkowski <maciejromanfijalkowski@gmail.com>,
	Maxim Mikityanskiy <maximmi@mellanox.com>
Subject: [PATCH bpf-next v5 14/16] net/mlx5e: Encapsulate open/close queues into a function
Date: Tue, 18 Jun 2019 12:01:08 +0000	[thread overview]
Message-ID: <20190618120024.16788-15-maximmi@mellanox.com> (raw)
In-Reply-To: <20190618120024.16788-1-maximmi@mellanox.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@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
---
 .../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 44557ecd4d34..ae1cf425ee4e 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -1769,49 +1769,16 @@ 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)
@@ -1856,8 +1823,6 @@ static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix,
 	if (err)
 		goto err_close_rq;
 
-	*cp = c;
-
 	return 0;
 
 err_close_rq:
@@ -1875,6 +1840,7 @@ 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);
 
@@ -1890,6 +1856,73 @@ 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);
@@ -1921,19 +1954,7 @@ 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);
 
-- 
2.19.1


  parent reply	other threads:[~2019-06-18 12:01 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-18 12:00 [PATCH bpf-next v5 00/16] AF_XDP infrastructure improvements and mlx5e support Maxim Mikityanskiy
2019-06-18 12:00 ` [PATCH bpf-next v5 01/16] net/mlx5e: Attach/detach XDP program safely Maxim Mikityanskiy
2019-06-18 12:00 ` [PATCH bpf-next v5 02/16] xsk: Add API to check for available entries in FQ Maxim Mikityanskiy
2019-06-18 12:00 ` [PATCH bpf-next v5 03/16] xsk: Add getsockopt XDP_OPTIONS Maxim Mikityanskiy
2019-06-18 12:00 ` [PATCH bpf-next v5 04/16] libbpf: Support " Maxim Mikityanskiy
2019-06-18 12:00 ` [PATCH bpf-next v5 05/16] xsk: Change the default frame size to 4096 and allow controlling it Maxim Mikityanskiy
2019-06-18 12:00 ` [PATCH bpf-next v5 06/16] xsk: Return the whole xdp_desc from xsk_umem_consume_tx Maxim Mikityanskiy
2019-06-18 12:00 ` [PATCH bpf-next v5 07/16] net/mlx5e: Replace deprecated PCI_DMA_TODEVICE Maxim Mikityanskiy
2019-06-18 12:00 ` [PATCH bpf-next v5 08/16] net/mlx5e: Calculate linear RX frag size considering XSK Maxim Mikityanskiy
2019-06-18 12:00 ` [PATCH bpf-next v5 09/16] net/mlx5e: Allow ICO SQ to be used by multiple RQs Maxim Mikityanskiy
2019-06-18 12:00 ` [PATCH bpf-next v5 10/16] net/mlx5e: Refactor struct mlx5e_xdp_info Maxim Mikityanskiy
2019-06-18 12:01 ` [PATCH bpf-next v5 11/16] net/mlx5e: Share the XDP SQ for XDP_TX between RQs Maxim Mikityanskiy
2019-06-18 12:01 ` [PATCH bpf-next v5 12/16] net/mlx5e: XDP_TX from UMEM support Maxim Mikityanskiy
2019-06-18 12:01 ` [PATCH bpf-next v5 13/16] net/mlx5e: Consider XSK in XDP MTU limit calculation Maxim Mikityanskiy
2019-06-18 12:01 ` Maxim Mikityanskiy [this message]
2019-06-18 12:01 ` [PATCH bpf-next v5 15/16] net/mlx5e: Move queue param structs to en/params.h Maxim Mikityanskiy
2019-06-18 12:01 ` [PATCH bpf-next v5 16/16] net/mlx5e: Add XSK zero-copy support Maxim Mikityanskiy
2019-06-20  9:13 ` [PATCH bpf-next v5 00/16] AF_XDP infrastructure improvements and mlx5e support Björn Töpel
2019-06-21 19:52   ` Saeed Mahameed
2019-06-23 11:53     ` Tariq Toukan
2019-06-24 14:48   ` Daniel Borkmann

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