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Date: Sun, 9 Oct 2011 17:27:11 +0200
From: Alexander Guller <alexg@...lanox.com>
To: <davem@...emloft.net>
CC: <netdev@...r.kernel.org>, <alexg@...lanox.com>,
<yevgenyp@...lanox.com>
Subject: [PATCH 4/7] mlx4_en: Added missing iounmap upon releasing a device
Fixed a memory leak caused by missing iounmap when device
is being released.
Signed-off-by: Alexander Guller <alexg@...lanox.co.il>
Signed-off-by: Sharon Cohen <sharonc@...lanox.co.il>
---
drivers/net/ethernet/mellanox/mlx4/en_main.c | 6 +++++-
1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_main.c b/drivers/net/ethernet/mellanox/mlx4/en_main.c
index 6bfea23..a06096f 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_main.c
@@ -176,6 +176,7 @@ static void mlx4_en_remove(struct mlx4_dev *dev, void *endev_ptr)
flush_workqueue(mdev->workqueue);
destroy_workqueue(mdev->workqueue);
mlx4_mr_free(dev, &mdev->mr);
+ iounmap(mdev->uar_map);
mlx4_uar_free(dev, &mdev->priv_uar);
mlx4_pd_free(dev, mdev->priv_pdn);
kfree(mdev);
@@ -223,7 +224,7 @@ static void *mlx4_en_add(struct mlx4_dev *dev)
MLX4_PERM_LOCAL_WRITE | MLX4_PERM_LOCAL_READ,
0, 0, &mdev->mr)) {
mlx4_err(mdev, "Failed allocating memory region\n");
- goto err_uar;
+ goto err_map;
}
if (mlx4_mr_enable(mdev->dev, &mdev->mr)) {
mlx4_err(mdev, "Failed enabling memory region\n");
@@ -282,6 +283,9 @@ static void *mlx4_en_add(struct mlx4_dev *dev)
err_mr:
mlx4_mr_free(dev, &mdev->mr);
+err_map:
+ if (!mdev->uar_map)
+ iounmap(mdev->uar_map);
err_uar:
mlx4_uar_free(dev, &mdev->priv_uar);
err_pd:
--
1.7.5.4
Until now only RX rings used irq per ring
and TX used only one per port.
>From now on, both of them will use the
irq per ring while RX & TX ring[i] will
use the same irq.
Signed-off-by: Alexander Guller <alexg@...lanox.co.il>
Signed-off-by: Sharon Cohen <sharonc@...lanox.co.il>
Signed-off-by: Yevgeny Petrilin <yevgenyp@...lanox.co.il>
---
drivers/net/ethernet/mellanox/mlx4/en_cq.c | 26 ++++++++++++++---------
drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 14 +-----------
drivers/net/ethernet/mellanox/mlx4/mlx4_en.h | 4 +-
3 files changed, 20 insertions(+), 24 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_cq.c b/drivers/net/ethernet/mellanox/mlx4/en_cq.c
index ec4b6d0..70ec529 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_cq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_cq.c
@@ -74,7 +74,8 @@ int mlx4_en_create_cq(struct mlx4_en_priv *priv,
return err;
}
-int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
+int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
+ int cq_idx)
{
struct mlx4_en_dev *mdev = priv->mdev;
int err = 0;
@@ -90,13 +91,15 @@ int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
if (cq->is_tx == RX) {
if (mdev->dev->caps.comp_pool) {
if (!cq->vector) {
- sprintf(name , "%s-rx-%d", priv->dev->name, cq->ring);
+ sprintf(name, "%s-%d", priv->dev->name,
+ cq->ring);
+ /* Set IRQ for specific name (per ring) */
if (mlx4_assign_eq(mdev->dev, name, &cq->vector)) {
- cq->vector = (cq->ring + 1 + priv->port) %
- mdev->dev->caps.num_comp_vectors;
+ cq->vector = (cq->ring + 1 + priv->port)
+ % mdev->dev->caps.num_comp_vectors;
mlx4_warn(mdev, "Failed Assigning an EQ to "
- "%s_rx-%d ,Falling back to legacy EQ's\n",
- priv->dev->name, cq->ring);
+ "%s ,Falling back to legacy EQ's\n",
+ name);
}
}
} else {
@@ -104,10 +107,13 @@ int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
mdev->dev->caps.num_comp_vectors;
}
} else {
- if (!cq->vector || !mdev->dev->caps.comp_pool) {
- /*Fallback to legacy pool in case of error*/
- cq->vector = 0;
- }
+ /* For TX we use the same irq per
+ ring we assigned for the RX */
+ struct mlx4_en_cq *rx_cq;
+
+ cq_idx = cq_idx % priv->rx_ring_num;
+ rx_cq = &priv->rx_cq[cq_idx];
+ cq->vector = rx_cq->vector;
}
if (!cq->is_tx)
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 27789be..b42c6aa 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -587,7 +587,6 @@ int mlx4_en_start_port(struct net_device *dev)
int i;
int j;
u8 mc_list[16] = {0};
- char name[32];
if (priv->port_up) {
en_dbg(DRV, priv, "start port called while port already up\n");
@@ -608,7 +607,7 @@ int mlx4_en_start_port(struct net_device *dev)
for (i = 0; i < priv->rx_ring_num; i++) {
cq = &priv->rx_cq[i];
- err = mlx4_en_activate_cq(priv, cq);
+ err = mlx4_en_activate_cq(priv, cq, i);
if (err) {
en_err(priv, "Failed activating Rx CQ\n");
goto cq_err;
@@ -642,20 +641,11 @@ int mlx4_en_start_port(struct net_device *dev)
goto mac_err;
}
- if (mdev->dev->caps.comp_pool && !priv->tx_vector) {
- sprintf(name , "%s-tx", priv->dev->name);
- if (mlx4_assign_eq(mdev->dev , name, &priv->tx_vector)) {
- mlx4_warn(mdev, "Failed Assigning an EQ to "
- "%s_tx ,Falling back to legacy "
- "EQ's\n", priv->dev->name);
- }
- }
/* Configure tx cq's and rings */
for (i = 0; i < priv->tx_ring_num; i++) {
/* Configure cq */
cq = &priv->tx_cq[i];
- cq->vector = priv->tx_vector;
- err = mlx4_en_activate_cq(priv, cq);
+ err = mlx4_en_activate_cq(priv, cq, i);
if (err) {
en_err(priv, "Failed allocating Tx CQ\n");
goto tx_err;
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
index ed84811..115784d 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
@@ -470,7 +470,6 @@ struct mlx4_en_priv {
u16 log_rx_info;
struct mlx4_en_tx_ring tx_ring[MAX_TX_RINGS];
- int tx_vector;
struct mlx4_en_rx_ring rx_ring[MAX_RX_RINGS];
struct mlx4_en_cq tx_cq[MAX_TX_RINGS];
struct mlx4_en_cq rx_cq[MAX_RX_RINGS];
@@ -510,7 +509,8 @@ int mlx4_en_create_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
int entries, int ring, enum cq_type mode);
void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
bool reserve_vectors);
-int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
+int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
+ int cq_idx);
void mlx4_en_deactivate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
int mlx4_en_set_cq_moder(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
int mlx4_en_arm_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
--
1.7.5.4
--
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