Re: [PATCH rdma-next v2 3/4] RDMA/bnxt_re: Make use of create AH sleepable flag

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On Wed, Dec 12, 2018 at 2:39 PM Gal Pressman <galpress@xxxxxxxxxx> wrote:
>
> When in a sleepable (non-atomic) context, wait for firmware completion
> instead of polling for it.
>
> Cc: Selvin Xavier <selvin.xavier@xxxxxxxxxxxx>
> Cc: Devesh Sharma <devesh.sharma@xxxxxxxxxxxx>
> Cc: Somnath Kotur <somnath.kotur@xxxxxxxxxxxx>
> Cc: Sriharsha Basavapatna <sriharsha.basavapatna@xxxxxxxxxxxx>
> Signed-off-by: Gal Pressman <galpress@xxxxxxxxxx>
> ---

Acked-by: Selvin Xavier <selvin.xavier@xxxxxxxxxxxx>

Thanks,
Selvin

>  drivers/infiniband/hw/bnxt_re/ib_verbs.c | 5 +++--
>  drivers/infiniband/hw/bnxt_re/qplib_sp.c | 5 +++--
>  drivers/infiniband/hw/bnxt_re/qplib_sp.h | 3 ++-
>  3 files changed, 8 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
> index 93dd35e2a69e..a5a7de29fe93 100644
> --- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
> +++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
> @@ -723,7 +723,8 @@ struct ib_ah *bnxt_re_create_ah(struct ib_pd *ib_pd,
>         }
>
>         memcpy(ah->qplib_ah.dmac, ah_attr->roce.dmac, ETH_ALEN);
> -       rc = bnxt_qplib_create_ah(&rdev->qplib_res, &ah->qplib_ah);
> +       rc = bnxt_qplib_create_ah(&rdev->qplib_res, &ah->qplib_ah,
> +                                 !(flags & RDMA_CREATE_AH_SLEEPABLE));
>         if (rc) {
>                 dev_err(rdev_to_dev(rdev), "Failed to allocate HW AH");
>                 goto fail;
> @@ -959,7 +960,7 @@ static struct bnxt_re_ah *bnxt_re_create_shadow_qp_ah
>         /* Have DMAC same as SMAC */
>         ether_addr_copy(ah->qplib_ah.dmac, rdev->netdev->dev_addr);
>
> -       rc = bnxt_qplib_create_ah(&rdev->qplib_res, &ah->qplib_ah);
> +       rc = bnxt_qplib_create_ah(&rdev->qplib_res, &ah->qplib_ah, false);
>         if (rc) {
>                 dev_err(rdev_to_dev(rdev),
>                         "Failed to allocate HW AH for Shadow QP");
> diff --git a/drivers/infiniband/hw/bnxt_re/qplib_sp.c b/drivers/infiniband/hw/bnxt_re/qplib_sp.c
> index 5216b5f844cc..8f4b19ea409c 100644
> --- a/drivers/infiniband/hw/bnxt_re/qplib_sp.c
> +++ b/drivers/infiniband/hw/bnxt_re/qplib_sp.c
> @@ -488,7 +488,8 @@ int bnxt_qplib_add_pkey(struct bnxt_qplib_res *res,
>  }
>
>  /* AH */
> -int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah)
> +int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah,
> +                        bool block)
>  {
>         struct bnxt_qplib_rcfw *rcfw = res->rcfw;
>         struct cmdq_create_ah req;
> @@ -522,7 +523,7 @@ int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah)
>         req.dest_mac[2] = cpu_to_le16(temp16[2]);
>
>         rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp,
> -                                         NULL, 1);
> +                                         NULL, block);
>         if (rc)
>                 return rc;
>
> diff --git a/drivers/infiniband/hw/bnxt_re/qplib_sp.h b/drivers/infiniband/hw/bnxt_re/qplib_sp.h
> index 8079d7f5a008..53145aa1e7ff 100644
> --- a/drivers/infiniband/hw/bnxt_re/qplib_sp.h
> +++ b/drivers/infiniband/hw/bnxt_re/qplib_sp.h
> @@ -241,7 +241,8 @@ int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw,
>  int bnxt_qplib_set_func_resources(struct bnxt_qplib_res *res,
>                                   struct bnxt_qplib_rcfw *rcfw,
>                                   struct bnxt_qplib_ctx *ctx);
> -int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah);
> +int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah,
> +                        bool block);
>  int bnxt_qplib_destroy_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah);
>  int bnxt_qplib_alloc_mrw(struct bnxt_qplib_res *res,
>                          struct bnxt_qplib_mrw *mrw);
> --
> 2.7.4
>



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