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IB/core: Allow vlan link local address based RoCE GIDs

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IPv6 link local address for a VLAN netdevice has nothing to do with its
resemblance with the default GID, because VLAN link local GID is in
different layer 2 domain.

Now that RoCE MAD packet processing and route resolution consider the
right GID index, there is no need for an unnecessary check which prevents
the addition of vlan based IPv6 link local GIDs.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Parav Pandit 2019-04-10 11:23:03 +03:00 committed by Jason Gunthorpe
parent 5fb58c9e2f
commit 823b23da71
1 changed files with 4 additions and 23 deletions
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27
drivers/infiniband/core/cache.c
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@ -543,30 +543,11 @@ static int __ib_cache_gid_add(struct ib_device *ib_dev, u8 port,
int ib_cache_gid_add(struct ib_device *ib_dev, u8 port,
union ib_gid *gid, struct ib_gid_attr *attr)
{
struct net_device *idev;
unsigned long mask;
int ret;
unsigned long mask = GID_ATTR_FIND_MASK_GID |
GID_ATTR_FIND_MASK_GID_TYPE |
GID_ATTR_FIND_MASK_NETDEV;
idev = ib_device_get_netdev(ib_dev, port);
if (idev && attr->ndev != idev) {
union ib_gid default_gid;
/* Adding default GIDs is not permitted */
make_default_gid(idev, &default_gid);
if (!memcmp(gid, &default_gid, sizeof(*gid))) {
dev_put(idev);
return -EPERM;
}
}
if (idev)
dev_put(idev);
mask = GID_ATTR_FIND_MASK_GID |
GID_ATTR_FIND_MASK_GID_TYPE |
GID_ATTR_FIND_MASK_NETDEV;
ret = __ib_cache_gid_add(ib_dev, port, gid, attr, mask, false);
return ret;
return __ib_cache_gid_add(ib_dev, port, gid, attr, mask, false);
}
static int