mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-08-27 03:10:12 +00:00
Code Issues Releases Wiki Activity

RDMA/ocrdma: Fixed GID table for vlan and events

Browse source 
1. Fix reporting GID table addition events.
2. Enable vlan based GID entries only when VLAN is enabled at compile
   time (test CONFIG_VLAN_8021Q / CONFIG_VLAN_8021Q_MODULE).

Signed-off-by: Parav Pandit <parav.pandit@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This commit is contained in:
Parav Pandit 2012-06-08 21:25:25 +05:30 committed by Roland Dreier
parent ae501be0f6
commit 6ab6827ee9
1 changed files with 34 additions and 29 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

63
drivers/infiniband/hw/ocrdma/ocrdma_main.c
View file

@ -97,13 +97,11 @@ static void ocrdma_build_sgid_mac(union ib_gid *sgid, unsigned char *mac_addr,
sgid->raw[15] = mac_addr[5];
}
static void ocrdma_add_sgid(struct ocrdma_dev *dev, unsigned char *mac_addr,
static bool ocrdma_add_sgid(struct ocrdma_dev *dev, unsigned char *mac_addr,
bool is_vlan, u16 vlan_id)
{
int i;
bool found = false;
union ib_gid new_sgid;
int free_idx = OCRDMA_MAX_SGID;
unsigned long flags;
memset(&ocrdma_zero_sgid, 0, sizeof(union ib_gid));
@ -115,23 +113,19 @@ static void ocrdma_add_sgid(struct ocrdma_dev *dev, unsigned char *mac_addr,
if (!memcmp(&dev->sgid_tbl[i], &ocrdma_zero_sgid,
sizeof(union ib_gid))) {
/* found free entry */
if (!found) {
free_idx = i;
found = true;
break;
}
memcpy(&dev->sgid_tbl[i], &new_sgid,
sizeof(union ib_gid));
spin_unlock_irqrestore(&dev->sgid_lock, flags);
return true;
} else if (!memcmp(&dev->sgid_tbl[i], &new_sgid,
sizeof(union ib_gid))) {
/* entry already present, no addition is required. */
spin_unlock_irqrestore(&dev->sgid_lock, flags);
return;
return false;
}
}
/* if entry doesn't exist and if table has some space, add entry */
if (found)
memcpy(&dev->sgid_tbl[free_idx], &new_sgid,
sizeof(union ib_gid));
spin_unlock_irqrestore(&dev->sgid_lock, flags);
return false;
}
static bool ocrdma_del_sgid(struct ocrdma_dev *dev, unsigned char *mac_addr,
@ -167,7 +161,8 @@ static void ocrdma_add_default_sgid(struct ocrdma_dev *dev)
ocrdma_get_guid(dev, &sgid->raw[8]);
}
static int ocrdma_build_sgid_tbl(struct ocrdma_dev *dev)
#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
static void ocrdma_add_vlan_sgids(struct ocrdma_dev *dev)
{
struct net_device *netdev, *tmp;
u16 vlan_id;
@ -175,8 +170,6 @@ static int ocrdma_build_sgid_tbl(struct ocrdma_dev *dev)
netdev = dev->nic_info.netdev;
ocrdma_add_default_sgid(dev);
rcu_read_lock();
for_each_netdev_rcu(&init_net, tmp) {
if (netdev == tmp || vlan_dev_real_dev(tmp) == netdev) {
@ -194,10 +187,23 @@ static int ocrdma_build_sgid_tbl(struct ocrdma_dev *dev)
}
}
rcu_read_unlock();
}
#else
static void ocrdma_add_vlan_sgids(struct ocrdma_dev *dev)
{
}
#endif /* VLAN */
static int ocrdma_build_sgid_tbl(struct ocrdma_dev *dev)
{
ocrdma_add_default_sgid(dev);
ocrdma_add_vlan_sgids(dev);
return 0;
}
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) || \
defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
static int ocrdma_inet6addr_event(struct notifier_block *notifier,
unsigned long event, void *ptr)
@ -208,6 +214,7 @@ static int ocrdma_inet6addr_event(struct notifier_block *notifier,
struct ib_event gid_event;
struct ocrdma_dev *dev;
bool found = false;
bool updated = false;
bool is_vlan = false;
u16 vid = 0;
@ -233,23 +240,21 @@ static int ocrdma_inet6addr_event(struct notifier_block *notifier,
mutex_lock(&dev->dev_lock);
switch (event) {
case NETDEV_UP:
ocrdma_add_sgid(dev, netdev->dev_addr, is_vlan, vid);
updated = ocrdma_add_sgid(dev, netdev->dev_addr, is_vlan, vid);
break;
case NETDEV_DOWN:
found = ocrdma_del_sgid(dev, netdev->dev_addr, is_vlan, vid);
if (found) {
/* found the matching entry, notify
* the consumers about it
*/
gid_event.device = &dev->ibdev;
gid_event.element.port_num = 1;
gid_event.event = IB_EVENT_GID_CHANGE;
ib_dispatch_event(&gid_event);
}
updated = ocrdma_del_sgid(dev, netdev->dev_addr, is_vlan, vid);
break;
default:
break;
}
if (updated) {
/* GID table updated, notify the consumers about it */
gid_event.device = &dev->ibdev;
gid_event.element.port_num = 1;
gid_event.event = IB_EVENT_GID_CHANGE;
ib_dispatch_event(&gid_event);
}
mutex_unlock(&dev->dev_lock);
return NOTIFY_OK;
}
@ -258,7 +263,7 @@ static struct notifier_block ocrdma_inet6addr_notifier = {
.notifier_call = ocrdma_inet6addr_event
};
#endif /* IPV6 */
#endif /* IPV6 and VLAN */
static enum rdma_link_layer ocrdma_link_layer(struct ib_device *device,
u8 port_num)