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authorShlomo Pongratz <shlomop@mellanox.com>2013-02-19 16:40:22 +0100
committerRoland Dreier <roland@purestorage.com>2013-02-19 17:21:35 +0100
commit9d1ad66e3eae0faf3f19a618da74b4c377474845 (patch)
treede98249a872d731bb382d6e51575dfa77fd89694 /drivers/infiniband/ulp/ipoib/ipoib.h
parentLinux 3.8-rc7 (diff)
downloadlinux-9d1ad66e3eae0faf3f19a618da74b4c377474845.tar.xz
linux-9d1ad66e3eae0faf3f19a618da74b4c377474845.zip
IPoIB: Fix ipoib_neigh hashing to use the correct daddr octets
The hash function introduced in commit b63b70d877 ("IPoIB: Use a private hash table for path lookup in xmit path") was designd to use the 3 octets of the IPoIB HW address that holds the remote QPN. However, this currently isn't the case on little-endian machines, because the the code there uses the flags part (octet[0]) and not the last octet of the QPN (octet[3]). Fix this. The fix caused a checkpatch warning on line over 80 characters, to solve that changed the name of the temp variable that holds the daddr. Signed-off-by: Shlomo Pongratz <shlomop@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/ulp/ipoib/ipoib.h')
-rw-r--r--drivers/infiniband/ulp/ipoib/ipoib.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h
index 07ca6fd5546b..a7ac0977cb5e 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib.h
+++ b/drivers/infiniband/ulp/ipoib/ipoib.h
@@ -117,6 +117,8 @@ enum {
#define IPOIB_OP_CM (0)
#endif
+#define IPOIB_QPN_MASK ((__force u32) cpu_to_be32(0xFFFFFF))
+
/* structs */
struct ipoib_header {