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authorTal Alon <talal@mellanox.com>2013-10-16 17:37:48 +0300
committerRoland Dreier <roland@purestorage.com>2013-11-08 14:42:48 -0800
commit22252b4e09f19431f82dc26428e0edf697d19a04 (patch)
treea6e68cfa1afbe4390e6e6b452d783019777a5bb3 /drivers
parentc2bb5628db44735bc0095a8ef8efc0278ba245df (diff)
IPoIB: Change CM skb memory allocation to be non-atomic during init
Change CM skb memory allocation to use GFP_KERNEL when possible. During device init there's no need to use GFP_ATOMIC when allocating memory for the CM skbs -- use GFP_KERNEL instead. Signed-off-by: Tal Alon <talal@mellanox.com> Signed-off-by: Erez Shitrit <erezsh@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/infiniband/ulp/ipoib/ipoib_cm.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
index 7a3175400b2a..1377f85911c2 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
@@ -140,7 +140,8 @@ static int ipoib_cm_post_receive_nonsrq(struct net_device *dev,
static struct sk_buff *ipoib_cm_alloc_rx_skb(struct net_device *dev,
struct ipoib_cm_rx_buf *rx_ring,
int id, int frags,
- u64 mapping[IPOIB_CM_RX_SG])
+ u64 mapping[IPOIB_CM_RX_SG],
+ gfp_t gfp)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
struct sk_buff *skb;
@@ -164,7 +165,7 @@ static struct sk_buff *ipoib_cm_alloc_rx_skb(struct net_device *dev,
}
for (i = 0; i < frags; i++) {
- struct page *page = alloc_page(GFP_ATOMIC);
+ struct page *page = alloc_page(gfp);
if (!page)
goto partial_error;
@@ -382,7 +383,8 @@ static int ipoib_cm_nonsrq_init_rx(struct net_device *dev, struct ib_cm_id *cm_i
for (i = 0; i < ipoib_recvq_size; ++i) {
if (!ipoib_cm_alloc_rx_skb(dev, rx->rx_ring, i, IPOIB_CM_RX_SG - 1,
- rx->rx_ring[i].mapping)) {
+ rx->rx_ring[i].mapping,
+ GFP_KERNEL)) {
ipoib_warn(priv, "failed to allocate receive buffer %d\n", i);
ret = -ENOMEM;
goto err_count;
@@ -639,7 +641,8 @@ void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
frags = PAGE_ALIGN(wc->byte_len - min(wc->byte_len,
(unsigned)IPOIB_CM_HEAD_SIZE)) / PAGE_SIZE;
- newskb = ipoib_cm_alloc_rx_skb(dev, rx_ring, wr_id, frags, mapping);
+ newskb = ipoib_cm_alloc_rx_skb(dev, rx_ring, wr_id, frags,
+ mapping, GFP_ATOMIC);
if (unlikely(!newskb)) {
/*
* If we can't allocate a new RX buffer, dump
@@ -1556,7 +1559,8 @@ int ipoib_cm_dev_init(struct net_device *dev)
for (i = 0; i < ipoib_recvq_size; ++i) {
if (!ipoib_cm_alloc_rx_skb(dev, priv->cm.srq_ring, i,
priv->cm.num_frags - 1,
- priv->cm.srq_ring[i].mapping)) {
+ priv->cm.srq_ring[i].mapping,
+ GFP_KERNEL)) {
ipoib_warn(priv, "failed to allocate "
"receive buffer %d\n", i);
ipoib_cm_dev_cleanup(dev);