diff options
| author | Bob Pearson <rpearsonhpe@gmail.com> | 2021-01-28 12:23:02 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-04 10:26:33 +0100 |
| commit | 3cb8510625d5441e60ac42de031e56628cec1237 (patch) | |
| tree | 7eb0a58d349a9befcaaab21d6e60909e59762105 /drivers/infiniband/sw/rxe | |
| parent | c88fc726d9c0e7a83b71df971adcc6a3cf657ad1 (diff) | |
RDMA/rxe: Correct skb on loopback path
[ Upstream commit 5120bf0a5fc15dec210a0fe0f39e4a256bb6e349 ]
rxe_net.c sends packets at the IP layer with skb->data pointing at the IP
header but receives packets from a UDP tunnel with skb->data pointing at
the UDP header. On the loopback path this was not correctly accounted
for. This patch corrects for this by using sbk_pull() to strip the IP
header from the skb on received packets.
Fixes: 8700e3e7c485 ("Soft RoCE driver")
Link: https://lore.kernel.org/r/20210128182301.16859-1-rpearson@hpe.com
Signed-off-by: Bob Pearson <rpearson@hpe.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/infiniband/sw/rxe')
| -rw-r--r-- | drivers/infiniband/sw/rxe/rxe_net.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_net.c b/drivers/infiniband/sw/rxe/rxe_net.c index 312c2fc961c0..d41135682891 100644 --- a/drivers/infiniband/sw/rxe/rxe_net.c +++ b/drivers/infiniband/sw/rxe/rxe_net.c @@ -453,6 +453,11 @@ int rxe_send(struct rxe_pkt_info *pkt, struct sk_buff *skb) void rxe_loopback(struct sk_buff *skb) { + if (skb->protocol == htons(ETH_P_IP)) + skb_pull(skb, sizeof(struct iphdr)); + else + skb_pull(skb, sizeof(struct ipv6hdr)); + rxe_rcv(skb); } |