On Thu, Jul 22, 2021 at 04:22:44PM -0500, Bob Pearson wrote:
> 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.
>
> Signed-off-by: Bob Pearson <rpearsonhpe@xxxxxxxxx>
> drivers/infiniband/sw/rxe/rxe_av.c | 20 +++++++++++++++++++-
> drivers/infiniband/sw/rxe/rxe_req.c | 8 +++++---
> 2 files changed, 24 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/infiniband/sw/rxe/rxe_av.c b/drivers/infiniband/sw/rxe/rxe_av.c
> index 85580ea5eed0..38c7b6fb39d7 100644
> +++ b/drivers/infiniband/sw/rxe/rxe_av.c
> @@ -101,11 +101,29 @@ void rxe_av_fill_ip_info(struct rxe_av *av, struct rdma_ah_attr *attr)
>
> struct rxe_av *rxe_get_av(struct rxe_pkt_info *pkt)
> {
> + struct rxe_ah *ah;
> + u32 ah_num;
> +
> if (!pkt || !pkt->qp)
> return NULL;
>
> if (qp_type(pkt->qp) == IB_QPT_RC || qp_type(pkt->qp) == IB_QPT_UC)
> return &pkt->qp->pri_av;
>
> - return (pkt->wqe) ? &pkt->wqe->wr.wr.ud.av : NULL;
> + if (!pkt->wqe)
> + return NULL;
> +
> + ah_num = pkt->wqe->wr.wr.ud.ah_num;
> + if (ah_num) {
> + /* only new user provider or kernel client */
> + ah = rxe_pool_get_index(&pkt->rxe->ah_pool, ah_num);
rxe_pool_get_index() incr's a kref, but I don't see any put of that
kref in this code?
Jason
