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authorBob Pearson <rpearsonhpe@gmail.com>2021-10-07 15:40:51 -0500
committerJason Gunthorpe <jgg@nvidia.com>2021-10-12 13:25:26 -0300
commite2fe06c9080694f2c28894f14ef8ebfd923ac94d (patch)
treee0d5c26f9af0eac76c94e2d0657f704fb8b3a4a2 /drivers/infiniband/sw/rxe/rxe_req.c
parentRDMA/rxe: Replace ah->pd by ah->ibah.pd (diff)
downloadlinux-dev-e2fe06c9080694f2c28894f14ef8ebfd923ac94d.tar.xz
linux-dev-e2fe06c9080694f2c28894f14ef8ebfd923ac94d.zip
RDMA/rxe: Lookup kernel AH from ah index in UD WQEs
Add code to rxe_get_av in rxe_av.c to use the AH index in UD send WQEs to lookup the kernel AH. For old user providers continue to use the AV passed in WQEs. Move setting pkt->rxe to before the call to rxe_get_av() to get access to the AH pool. Link: https://lore.kernel.org/r/20211007204051.10086-6-rpearsonhpe@gmail.com Signed-off-by: Bob Pearson <rpearsonhpe@gmail.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/sw/rxe/rxe_req.c')
-rw-r--r--drivers/infiniband/sw/rxe/rxe_req.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_req.c b/drivers/infiniband/sw/rxe/rxe_req.c
index fe275fcaffbd..0c9d2af15f3d 100644
--- a/drivers/infiniband/sw/rxe/rxe_req.c
+++ b/drivers/infiniband/sw/rxe/rxe_req.c
@@ -379,9 +379,8 @@ static struct sk_buff *init_req_packet(struct rxe_qp *qp,
/* length from start of bth to end of icrc */
paylen = rxe_opcode[opcode].length + payload + pad + RXE_ICRC_SIZE;
- /* pkt->hdr, rxe, port_num and mask are initialized in ifc
- * layer
- */
+ /* pkt->hdr, port_num and mask are initialized in ifc layer */
+ pkt->rxe = rxe;
pkt->opcode = opcode;
pkt->qp = qp;
pkt->psn = qp->req.psn;
@@ -391,6 +390,9 @@ static struct sk_buff *init_req_packet(struct rxe_qp *qp,
/* init skb */
av = rxe_get_av(pkt);
+ if (!av)
+ return NULL;
+
skb = rxe_init_packet(rxe, av, paylen, pkt);
if (unlikely(!skb))
return NULL;