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authorSteve Wise <swise@opengridcomputing.com>2013-07-04 16:10:44 +0530
committerRoland Dreier <roland@purestorage.com>2013-08-12 12:32:31 -0700
commit24d44a391f1b5d56e9c7a4fc1edd085687864ff9 (patch)
tree3076b01a1b85d6b21d08f615a44a4b7c2f5b5acb /drivers/infiniband/hw/cxgb3
parentLinux 3.11-rc4 (diff)
downloadlinux-dev-24d44a391f1b5d56e9c7a4fc1edd085687864ff9.tar.xz
linux-dev-24d44a391f1b5d56e9c7a4fc1edd085687864ff9.zip
RDMA/cma: Add IPv6 support for iWARP
Modify the type of local_addr and remote_addr fields in struct iw_cm_id from struct sockaddr_in to struct sockaddr_storage to hold IPv6 and IPv4 addresses uniformly. Change the references of local_addr and remote_addr in cxgb4, cxgb3, nes and amso drivers to match this. However to be able to actully run traffic over IPv6, low-level drivers have to add code to support this. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Reviewed-by: Sean Hefty <sean.hefty@intel.com> [ Fix unused variable warnings when INFINIBAND_NES_DEBUG not set. - Roland ] Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/hw/cxgb3')
-rw-r--r--drivers/infiniband/hw/cxgb3/iwch_cm.c46
1 files changed, 32 insertions, 14 deletions
diff --git a/drivers/infiniband/hw/cxgb3/iwch_cm.c b/drivers/infiniband/hw/cxgb3/iwch_cm.c
index 3e094cd6a0e3..095bb046e2c8 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_cm.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_cm.c
@@ -721,8 +721,10 @@ static void connect_reply_upcall(struct iwch_ep *ep, int status)
memset(&event, 0, sizeof(event));
event.event = IW_CM_EVENT_CONNECT_REPLY;
event.status = status;
- event.local_addr = ep->com.local_addr;
- event.remote_addr = ep->com.remote_addr;
+ memcpy(&event.local_addr, &ep->com.local_addr,
+ sizeof(ep->com.local_addr));
+ memcpy(&event.remote_addr, &ep->com.remote_addr,
+ sizeof(ep->com.remote_addr));
if ((status == 0) || (status == -ECONNREFUSED)) {
event.private_data_len = ep->plen;
@@ -747,8 +749,10 @@ static void connect_request_upcall(struct iwch_ep *ep)
PDBG("%s ep %p tid %d\n", __func__, ep, ep->hwtid);
memset(&event, 0, sizeof(event));
event.event = IW_CM_EVENT_CONNECT_REQUEST;
- event.local_addr = ep->com.local_addr;
- event.remote_addr = ep->com.remote_addr;
+ memcpy(&event.local_addr, &ep->com.local_addr,
+ sizeof(ep->com.local_addr));
+ memcpy(&event.remote_addr, &ep->com.remote_addr,
+ sizeof(ep->com.local_addr));
event.private_data_len = ep->plen;
event.private_data = ep->mpa_pkt + sizeof(struct mpa_message);
event.provider_data = ep;
@@ -1872,8 +1876,9 @@ err:
static int is_loopback_dst(struct iw_cm_id *cm_id)
{
struct net_device *dev;
+ struct sockaddr_in *raddr = (struct sockaddr_in *)&cm_id->remote_addr;
- dev = ip_dev_find(&init_net, cm_id->remote_addr.sin_addr.s_addr);
+ dev = ip_dev_find(&init_net, raddr->sin_addr.s_addr);
if (!dev)
return 0;
dev_put(dev);
@@ -1886,6 +1891,13 @@ int iwch_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
struct iwch_ep *ep;
struct rtable *rt;
int err = 0;
+ struct sockaddr_in *laddr = (struct sockaddr_in *)&cm_id->local_addr;
+ struct sockaddr_in *raddr = (struct sockaddr_in *)&cm_id->remote_addr;
+
+ if (cm_id->remote_addr.ss_family != PF_INET) {
+ err = -ENOSYS;
+ goto out;
+ }
if (is_loopback_dst(cm_id)) {
err = -ENOSYS;
@@ -1929,11 +1941,9 @@ int iwch_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
}
/* find a route */
- rt = find_route(h->rdev.t3cdev_p,
- cm_id->local_addr.sin_addr.s_addr,
- cm_id->remote_addr.sin_addr.s_addr,
- cm_id->local_addr.sin_port,
- cm_id->remote_addr.sin_port, IPTOS_LOWDELAY);
+ rt = find_route(h->rdev.t3cdev_p, laddr->sin_addr.s_addr,
+ raddr->sin_addr.s_addr, laddr->sin_port,
+ raddr->sin_port, IPTOS_LOWDELAY);
if (!rt) {
printk(KERN_ERR MOD "%s - cannot find route.\n", __func__);
err = -EHOSTUNREACH;
@@ -1941,7 +1951,7 @@ int iwch_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
}
ep->dst = &rt->dst;
ep->l2t = t3_l2t_get(ep->com.tdev, ep->dst, NULL,
- &cm_id->remote_addr.sin_addr.s_addr);
+ &raddr->sin_addr.s_addr);
if (!ep->l2t) {
printk(KERN_ERR MOD "%s - cannot alloc l2e.\n", __func__);
err = -ENOMEM;
@@ -1950,8 +1960,10 @@ int iwch_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
state_set(&ep->com, CONNECTING);
ep->tos = IPTOS_LOWDELAY;
- ep->com.local_addr = cm_id->local_addr;
- ep->com.remote_addr = cm_id->remote_addr;
+ memcpy(&ep->com.local_addr, &cm_id->local_addr,
+ sizeof(ep->com.local_addr));
+ memcpy(&ep->com.remote_addr, &cm_id->remote_addr,
+ sizeof(ep->com.remote_addr));
/* send connect request to rnic */
err = send_connect(ep);
@@ -1979,6 +1991,11 @@ int iwch_create_listen(struct iw_cm_id *cm_id, int backlog)
might_sleep();
+ if (cm_id->local_addr.ss_family != PF_INET) {
+ err = -ENOSYS;
+ goto fail1;
+ }
+
ep = alloc_ep(sizeof(*ep), GFP_KERNEL);
if (!ep) {
printk(KERN_ERR MOD "%s - cannot alloc ep.\n", __func__);
@@ -1990,7 +2007,8 @@ int iwch_create_listen(struct iw_cm_id *cm_id, int backlog)
cm_id->add_ref(cm_id);
ep->com.cm_id = cm_id;
ep->backlog = backlog;
- ep->com.local_addr = cm_id->local_addr;
+ memcpy(&ep->com.local_addr, &cm_id->local_addr,
+ sizeof(ep->com.local_addr));
/*
* Allocate a server TID.