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authorDavid S. Miller <davem@davemloft.net>2011-07-17 23:09:49 -0700
committerDavid S. Miller <davem@davemloft.net>2011-07-17 23:11:35 -0700
commit69cce1d1404968f78b177a0314f5822d5afdbbfb (patch)
tree26223264fd69ea8078d0013fd5a76eb7aeb04c12 /drivers/infiniband/hw
parent9cbb7ecbcff85077bb12301aaf4c9b5a56c5993d (diff)
net: Abstract dst->neighbour accesses behind helpers.
dst_{get,set}_neighbour() Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/infiniband/hw')
-rw-r--r--drivers/infiniband/hw/cxgb3/iwch_cm.c12
-rw-r--r--drivers/infiniband/hw/cxgb4/cm.c42
-rw-r--r--drivers/infiniband/hw/nes/nes_cm.c2
3 files changed, 30 insertions, 26 deletions
diff --git a/drivers/infiniband/hw/cxgb3/iwch_cm.c b/drivers/infiniband/hw/cxgb3/iwch_cm.c
index 0a5008fbebac..17bf9d95463c 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_cm.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_cm.c
@@ -1328,6 +1328,7 @@ static int pass_accept_req(struct t3cdev *tdev, struct sk_buff *skb, void *ctx)
struct iwch_ep *child_ep, *parent_ep = ctx;
struct cpl_pass_accept_req *req = cplhdr(skb);
unsigned int hwtid = GET_TID(req);
+ struct neighbour *neigh;
struct dst_entry *dst;
struct l2t_entry *l2t;
struct rtable *rt;
@@ -1364,7 +1365,8 @@ static int pass_accept_req(struct t3cdev *tdev, struct sk_buff *skb, void *ctx)
goto reject;
}
dst = &rt->dst;
- l2t = t3_l2t_get(tdev, dst->neighbour, dst->neighbour->dev);
+ neigh = dst_get_neighbour(dst);
+ l2t = t3_l2t_get(tdev, neigh, neigh->dev);
if (!l2t) {
printk(KERN_ERR MOD "%s - failed to allocate l2t entry!\n",
__func__);
@@ -1874,10 +1876,11 @@ static int is_loopback_dst(struct iw_cm_id *cm_id)
int iwch_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
{
- int err = 0;
struct iwch_dev *h = to_iwch_dev(cm_id->device);
+ struct neighbour *neigh;
struct iwch_ep *ep;
struct rtable *rt;
+ int err = 0;
if (is_loopback_dst(cm_id)) {
err = -ENOSYS;
@@ -1933,9 +1936,10 @@ int iwch_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
}
ep->dst = &rt->dst;
+ neigh = dst_get_neighbour(ep->dst);
+
/* get a l2t entry */
- ep->l2t = t3_l2t_get(ep->com.tdev, ep->dst->neighbour,
- ep->dst->neighbour->dev);
+ ep->l2t = t3_l2t_get(ep->com.tdev, neigh, neigh->dev);
if (!ep->l2t) {
printk(KERN_ERR MOD "%s - cannot alloc l2e.\n", __func__);
err = -ENOMEM;
diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
index 31fb44085c9b..77f769d9227d 100644
--- a/drivers/infiniband/hw/cxgb4/cm.c
+++ b/drivers/infiniband/hw/cxgb4/cm.c
@@ -1325,6 +1325,7 @@ static int pass_accept_req(struct c4iw_dev *dev, struct sk_buff *skb)
unsigned int stid = GET_POPEN_TID(ntohl(req->tos_stid));
struct tid_info *t = dev->rdev.lldi.tids;
unsigned int hwtid = GET_TID(req);
+ struct neighbour *neigh;
struct dst_entry *dst;
struct l2t_entry *l2t;
struct rtable *rt;
@@ -1357,11 +1358,11 @@ static int pass_accept_req(struct c4iw_dev *dev, struct sk_buff *skb)
goto reject;
}
dst = &rt->dst;
- if (dst->neighbour->dev->flags & IFF_LOOPBACK) {
+ neigh = dst_get_neighbour(dst);
+ if (neigh->dev->flags & IFF_LOOPBACK) {
pdev = ip_dev_find(&init_net, peer_ip);
BUG_ON(!pdev);
- l2t = cxgb4_l2t_get(dev->rdev.lldi.l2t, dst->neighbour,
- pdev, 0);
+ l2t = cxgb4_l2t_get(dev->rdev.lldi.l2t, neigh, pdev, 0);
mtu = pdev->mtu;
tx_chan = cxgb4_port_chan(pdev);
smac_idx = (cxgb4_port_viid(pdev) & 0x7F) << 1;
@@ -1372,17 +1373,16 @@ static int pass_accept_req(struct c4iw_dev *dev, struct sk_buff *skb)
rss_qid = dev->rdev.lldi.rxq_ids[cxgb4_port_idx(pdev) * step];
dev_put(pdev);
} else {
- l2t = cxgb4_l2t_get(dev->rdev.lldi.l2t, dst->neighbour,
- dst->neighbour->dev, 0);
+ l2t = cxgb4_l2t_get(dev->rdev.lldi.l2t, neigh, neigh->dev, 0);
mtu = dst_mtu(dst);
- tx_chan = cxgb4_port_chan(dst->neighbour->dev);
- smac_idx = (cxgb4_port_viid(dst->neighbour->dev) & 0x7F) << 1;
+ tx_chan = cxgb4_port_chan(neigh->dev);
+ smac_idx = (cxgb4_port_viid(neigh->dev) & 0x7F) << 1;
step = dev->rdev.lldi.ntxq / dev->rdev.lldi.nchan;
- txq_idx = cxgb4_port_idx(dst->neighbour->dev) * step;
- ctrlq_idx = cxgb4_port_idx(dst->neighbour->dev);
+ txq_idx = cxgb4_port_idx(neigh->dev) * step;
+ ctrlq_idx = cxgb4_port_idx(neigh->dev);
step = dev->rdev.lldi.nrxq / dev->rdev.lldi.nchan;
rss_qid = dev->rdev.lldi.rxq_ids[
- cxgb4_port_idx(dst->neighbour->dev) * step];
+ cxgb4_port_idx(neigh->dev) * step];
}
if (!l2t) {
printk(KERN_ERR MOD "%s - failed to allocate l2t entry!\n",
@@ -1847,6 +1847,7 @@ int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
struct c4iw_ep *ep;
struct rtable *rt;
struct net_device *pdev;
+ struct neighbour *neigh;
int step;
if ((conn_param->ord > c4iw_max_read_depth) ||
@@ -1908,14 +1909,15 @@ int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
}
ep->dst = &rt->dst;
+ neigh = dst_get_neighbour(ep->dst);
+
/* get a l2t entry */
- if (ep->dst->neighbour->dev->flags & IFF_LOOPBACK) {
+ if (neigh->dev->flags & IFF_LOOPBACK) {
PDBG("%s LOOPBACK\n", __func__);
pdev = ip_dev_find(&init_net,
cm_id->remote_addr.sin_addr.s_addr);
ep->l2t = cxgb4_l2t_get(ep->com.dev->rdev.lldi.l2t,
- ep->dst->neighbour,
- pdev, 0);
+ neigh, pdev, 0);
ep->mtu = pdev->mtu;
ep->tx_chan = cxgb4_port_chan(pdev);
ep->smac_idx = (cxgb4_port_viid(pdev) & 0x7F) << 1;
@@ -1930,20 +1932,18 @@ int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
dev_put(pdev);
} else {
ep->l2t = cxgb4_l2t_get(ep->com.dev->rdev.lldi.l2t,
- ep->dst->neighbour,
- ep->dst->neighbour->dev, 0);
+ neigh, neigh->dev, 0);
ep->mtu = dst_mtu(ep->dst);
- ep->tx_chan = cxgb4_port_chan(ep->dst->neighbour->dev);
- ep->smac_idx = (cxgb4_port_viid(ep->dst->neighbour->dev) &
- 0x7F) << 1;
+ ep->tx_chan = cxgb4_port_chan(neigh->dev);
+ ep->smac_idx = (cxgb4_port_viid(neigh->dev) & 0x7F) << 1;
step = ep->com.dev->rdev.lldi.ntxq /
ep->com.dev->rdev.lldi.nchan;
- ep->txq_idx = cxgb4_port_idx(ep->dst->neighbour->dev) * step;
- ep->ctrlq_idx = cxgb4_port_idx(ep->dst->neighbour->dev);
+ ep->txq_idx = cxgb4_port_idx(neigh->dev) * step;
+ ep->ctrlq_idx = cxgb4_port_idx(neigh->dev);
step = ep->com.dev->rdev.lldi.nrxq /
ep->com.dev->rdev.lldi.nchan;
ep->rss_qid = ep->com.dev->rdev.lldi.rxq_ids[
- cxgb4_port_idx(ep->dst->neighbour->dev) * step];
+ cxgb4_port_idx(neigh->dev) * step];
}
if (!ep->l2t) {
printk(KERN_ERR MOD "%s - cannot alloc l2e.\n", __func__);
diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
index e74cdf9ef471..73bc18465c9c 100644
--- a/drivers/infiniband/hw/nes/nes_cm.c
+++ b/drivers/infiniband/hw/nes/nes_cm.c
@@ -1151,7 +1151,7 @@ static int nes_addr_resolve_neigh(struct nes_vnic *nesvnic, u32 dst_ip, int arpi
}
if ((neigh == NULL) || (!(neigh->nud_state & NUD_VALID)))
- neigh_event_send(rt->dst.neighbour, NULL);
+ neigh_event_send(dst_get_neighbour(&rt->dst), NULL);
ip_rt_put(rt);
return rc;

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