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authorRoland Dreier <rolandd@cisco.com>2008-01-25 14:15:24 -0800
committerRoland Dreier <rolandd@cisco.com>2008-01-25 14:15:24 -0800
commit7b3687df66cab4ecd6efb42cfa0c7de60cc4e3b9 (patch)
tree8a5369a9fb1d4c645833852bec9d29bf3319e5ea /drivers/infiniband/ulp
parent1efb61444ca3a598dfafb7a6c573c5d5d42d3432 (diff)
downloadlinux-7b3687df66cab4ecd6efb42cfa0c7de60cc4e3b9.tar.bz2
IPoIB/cm: Factor out ipoib_cm_create_srq()
Factor out the code to create an SRQ and allocate the receive ring in ipoib_cm_dev_init() into a new function ipoib_cm_create_srq(). This will make the code neater when support for devices that don't implement SRQs is added. Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/ulp')
-rw-r--r--drivers/infiniband/ulp/ipoib/ipoib_cm.c47
1 files changed, 30 insertions, 17 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
index 388f0413fcb7..9edc9fc96210 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
@@ -1271,7 +1271,7 @@ int ipoib_cm_add_mode_attr(struct net_device *dev)
return device_create_file(&dev->dev, &dev_attr_mode);
}
-int ipoib_cm_dev_init(struct net_device *dev)
+static int ipoib_cm_create_srq(struct net_device *dev)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
struct ib_srq_init_attr srq_init_attr = {
@@ -1280,6 +1280,31 @@ int ipoib_cm_dev_init(struct net_device *dev)
.max_sge = IPOIB_CM_RX_SG
}
};
+ int ret;
+
+ priv->cm.srq = ib_create_srq(priv->pd, &srq_init_attr);
+ if (IS_ERR(priv->cm.srq)) {
+ ret = PTR_ERR(priv->cm.srq);
+ priv->cm.srq = NULL;
+ return ret;
+ }
+
+ priv->cm.srq_ring = kzalloc(ipoib_recvq_size * sizeof *priv->cm.srq_ring,
+ GFP_KERNEL);
+ if (!priv->cm.srq_ring) {
+ printk(KERN_WARNING "%s: failed to allocate CM ring (%d entries)\n",
+ priv->ca->name, ipoib_recvq_size);
+ ib_destroy_srq(priv->cm.srq);
+ priv->cm.srq = NULL;
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+int ipoib_cm_dev_init(struct net_device *dev)
+{
+ struct ipoib_dev_priv *priv = netdev_priv(dev);
int ret, i;
INIT_LIST_HEAD(&priv->cm.passive_ids);
@@ -1297,22 +1322,6 @@ int ipoib_cm_dev_init(struct net_device *dev)
skb_queue_head_init(&priv->cm.skb_queue);
- priv->cm.srq = ib_create_srq(priv->pd, &srq_init_attr);
- if (IS_ERR(priv->cm.srq)) {
- ret = PTR_ERR(priv->cm.srq);
- priv->cm.srq = NULL;
- return ret;
- }
-
- priv->cm.srq_ring = kzalloc(ipoib_recvq_size * sizeof *priv->cm.srq_ring,
- GFP_KERNEL);
- if (!priv->cm.srq_ring) {
- printk(KERN_WARNING "%s: failed to allocate CM ring (%d entries)\n",
- priv->ca->name, ipoib_recvq_size);
- ipoib_cm_dev_cleanup(dev);
- return -ENOMEM;
- }
-
for (i = 0; i < IPOIB_CM_RX_SG; ++i)
priv->cm.rx_sge[i].lkey = priv->mr->lkey;
@@ -1323,6 +1332,10 @@ int ipoib_cm_dev_init(struct net_device *dev)
priv->cm.rx_wr.sg_list = priv->cm.rx_sge;
priv->cm.rx_wr.num_sge = IPOIB_CM_RX_SG;
+ ret = ipoib_cm_create_srq(dev);
+ if (ret)
+ return ret;
+
for (i = 0; i < ipoib_recvq_size; ++i) {
if (!ipoib_cm_alloc_rx_skb(dev, i, IPOIB_CM_RX_SG - 1,
priv->cm.srq_ring[i].mapping)) {