This is a note to let you know that I've just added the patch titled
net/mlx4_en: Release TX QP when destroying TX ring
to the 4.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-mlx4_en-release-tx-qp-when-destroying-tx-ring.patch
and it can be found in the queue-4.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Fri Jul 3 19:59:52 PDT 2015
From: Eran Ben Elisha <eranbe@xxxxxxxxxxxx>
Date: Thu, 25 Jun 2015 11:29:41 +0300
Subject: net/mlx4_en: Release TX QP when destroying TX ring
From: Eran Ben Elisha <eranbe@xxxxxxxxxxxx>
[ Upstream commit 0eb08514fdbdcd16fd6870680cd638f203662e9d ]
TX ring QP wasn't released at mlx4_en_destroy_tx_ring. Instead, the code
used the deprecated base_tx_qpn field. Move TX QP release to
mlx4_en_destroy_tx_ring and remove the base_tx_qpn field.
Fixes: ddae0349fdb7 ('net/mlx4: Change QP allocation scheme')
Signed-off-by: Eran Ben Elisha <eranbe@xxxxxxxxxxxx>
Signed-off-by: Or Gerlitz <ogerlitz@xxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 4 ----
drivers/net/ethernet/mellanox/mlx4/en_tx.c | 1 +
drivers/net/ethernet/mellanox/mlx4/mlx4_en.h | 1 -
3 files changed, 1 insertion(+), 5 deletions(-)
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -1971,10 +1971,6 @@ void mlx4_en_free_resources(struct mlx4_
mlx4_en_destroy_cq(priv, &priv->rx_cq[i]);
}
- if (priv->base_tx_qpn) {
- mlx4_qp_release_range(priv->mdev->dev, priv->base_tx_qpn, priv->tx_ring_num);
- priv->base_tx_qpn = 0;
- }
}
int mlx4_en_alloc_resources(struct mlx4_en_priv *priv)
--- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
@@ -180,6 +180,7 @@ void mlx4_en_destroy_tx_ring(struct mlx4
mlx4_bf_free(mdev->dev, &ring->bf);
mlx4_qp_remove(mdev->dev, &ring->qp);
mlx4_qp_free(mdev->dev, &ring->qp);
+ mlx4_qp_release_range(priv->mdev->dev, ring->qpn, 1);
mlx4_en_unmap_buffer(&ring->wqres.buf);
mlx4_free_hwq_res(mdev->dev, &ring->wqres, ring->buf_size);
kfree(ring->bounce_buf);
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
@@ -601,7 +601,6 @@ struct mlx4_en_priv {
int vids[128];
bool wol;
struct device *ddev;
- int base_tx_qpn;
struct hlist_head mac_hash[MLX4_EN_MAC_HASH_SIZE];
struct hwtstamp_config hwtstamp_config;
Patches currently in stable-queue which might be from eranbe@xxxxxxxxxxxx are
queue-4.0/net-mlx4_en-release-tx-qp-when-destroying-tx-ring.patch
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