diff options
| author | Bob Pearson <rpearsonhpe@gmail.com> | 2021-01-28 21:23:02 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-04 11:39:46 +0300 |
| commit | fd5560b4376efe3c1e79d86cfb2ff1b65737f459 (patch) | |
| tree | b4af7ea0330a2a6b99d7a5a7b52cdc529c05ff6b /drivers/infiniband | |
| parent | 61f183818999ab8a9220b74d86cf2233da687ac0 (diff) | |
| download | linux-fd5560b4376efe3c1e79d86cfb2ff1b65737f459.tar.xz | |
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')
| -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 7903bd5c639e..04bfc36cc8d7 100644 --- a/drivers/infiniband/sw/rxe/rxe_net.c +++ b/drivers/infiniband/sw/rxe/rxe_net.c @@ -500,6 +500,11 @@ 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); } |