提交 b1404069 编写于 作者: D David J. Wilder 提交者: Roland Dreier

IPoIB/cm: Use vmalloc() to allocate rx_rings

There are users that are running UDP applications that require a large
receive queue size in order to get good performance.  To prevent
allocation failures for rx_rings when using non-SRQ mode and large
recv_queue_size (1K or larger), use vmalloc() instead of kcalloc() to
alocate rx_rings.
Signed-off-by: NDavid Wilder <dwilder@us.ibm.com>
Signed-off-by: NRoland Dreier <rolandd@cisco.com>
上级 f2d7499b
......@@ -202,7 +202,7 @@ static void ipoib_cm_free_rx_ring(struct net_device *dev,
dev_kfree_skb_any(rx_ring[i].skb);
}
kfree(rx_ring);
vfree(rx_ring);
}
static void ipoib_cm_start_rx_drain(struct ipoib_dev_priv *priv)
......@@ -352,9 +352,14 @@ static int ipoib_cm_nonsrq_init_rx(struct net_device *dev, struct ib_cm_id *cm_i
int ret;
int i;
rx->rx_ring = kcalloc(ipoib_recvq_size, sizeof *rx->rx_ring, GFP_KERNEL);
if (!rx->rx_ring)
rx->rx_ring = vmalloc(ipoib_recvq_size * sizeof *rx->rx_ring);
if (!rx->rx_ring) {
printk(KERN_WARNING "%s: failed to allocate CM non-SRQ ring (%d entries)\n",
priv->ca->name, ipoib_recvq_size);
return -ENOMEM;
}
memset(rx->rx_ring, 0, ipoib_recvq_size * sizeof *rx->rx_ring);
t = kmalloc(sizeof *t, GFP_KERNEL);
if (!t) {
......@@ -1494,14 +1499,16 @@ static void ipoib_cm_create_srq(struct net_device *dev, int max_sge)
return;
}
priv->cm.srq_ring = kzalloc(ipoib_recvq_size * sizeof *priv->cm.srq_ring,
GFP_KERNEL);
priv->cm.srq_ring = vmalloc(ipoib_recvq_size * sizeof *priv->cm.srq_ring);
if (!priv->cm.srq_ring) {
printk(KERN_WARNING "%s: failed to allocate CM SRQ ring (%d entries)\n",
priv->ca->name, ipoib_recvq_size);
ib_destroy_srq(priv->cm.srq);
priv->cm.srq = NULL;
return;
}
memset(priv->cm.srq_ring, 0, ipoib_recvq_size * sizeof *priv->cm.srq_ring);
}
int ipoib_cm_dev_init(struct net_device *dev)
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册