Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=82c3aca6ad9004169df8f2f8c0747686fe4003b3
Commit: 82c3aca6ad9004169df8f2f8c0747686fe4003b3
Parent: 3ec7393a6858a1716e74aa81be6af76fd180021d
Author: Michael S. Tsirkin <[EMAIL PROTECTED]>
AuthorDate: Wed Jun 20 19:22:15 2007 +0300
Committer: Roland Dreier <[EMAIL PROTECTED]>
CommitDate: Thu Jun 21 13:38:08 2007 -0700
IPoIB/cm: Fix interoperability when MTU doesn't match
IPoIB connected mode currently rejects a connection request unless the
supported MTU is >= the local netdevice MTU. This breaks
interoperability with implementations that might have tweaked
IPOIB_CM_MTU, and there's real no longer a reason to do so: this test
is just a leftover from when we did not tweak MTU per-connection. Fix
this by making the test as permissive as possible.
Signed-off-by: Michael S. Tsirkin <[EMAIL PROTECTED]>
Signed-off-by: Roland Dreier <[EMAIL PROTECTED]>
---
drivers/infiniband/ulp/ipoib/ipoib_cm.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c
b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
index c64249f..472c632 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
@@ -759,9 +759,9 @@ static int ipoib_cm_rep_handler(struct ib_cm_id *cm_id,
struct ib_cm_event *even
p->mtu = be32_to_cpu(data->mtu);
- if (p->mtu < priv->dev->mtu + IPOIB_ENCAP_LEN) {
- ipoib_warn(priv, "Rejecting connection: mtu %d < device mtu %d
+ 4\n",
- p->mtu, priv->dev->mtu);
+ if (p->mtu <= IPOIB_ENCAP_LEN) {
+ ipoib_warn(priv, "Rejecting connection: mtu %d <= %d\n",
+ p->mtu, IPOIB_ENCAP_LEN);
return -EINVAL;
}
-
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