RE: [PATCH rdma-next v1 8/9] RDMA: Globally allocate and release QP memory

From: Nikolova, Tatyana E
Date: Thu Jul 29 2021 - 16:20:25 EST

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> -----Original Message-----
> From: Leon Romanovsky <leon@xxxxxxxxxx>
> Sent: Friday, July 23, 2021 6:40 AM
> To: Doug Ledford <dledford@xxxxxxxxxx>; Jason Gunthorpe
> <jgg@xxxxxxxxxx>
> Cc: Leon Romanovsky <leonro@xxxxxxxxxx>; Adit Ranadive
> <aditr@xxxxxxxxxx>; Ariel Elior <aelior@xxxxxxxxxxx>; Bernard Metzler
> <bmt@xxxxxxxxxxxxxx>; Christian Benvenuti <benve@xxxxxxxxx>; Dennis
> Dalessandro <dennis.dalessandro@xxxxxxxxxxxxxxxxxxxx>; Gal Pressman
> <galpress@xxxxxxxxxx>; linux-kernel@xxxxxxxxxxxxxxx; linux-
> rdma@xxxxxxxxxxxxxxx; Michal Kalderon <mkalderon@xxxxxxxxxxx>; Mike
> Marciniszyn <mike.marciniszyn@xxxxxxxxxxxxxxxxxxxx>; Ismail, Mustafa
> <mustafa.ismail@xxxxxxxxx>; Naresh Kumar PBS
> <nareshkumar.pbs@xxxxxxxxxxxx>; Nelson Escobar
> <neescoba@xxxxxxxxx>; Potnuri Bharat Teja <bharat@xxxxxxxxxxx>; Selvin
> Xavier <selvin.xavier@xxxxxxxxxxxx>; Saleem, Shiraz
> <shiraz.saleem@xxxxxxxxx>; Steve Wise <larrystevenwise@xxxxxxxxx>;
> VMware PV-Drivers <pv-drivers@xxxxxxxxxx>; Weihang Li
> <liweihang@xxxxxxxxxx>; Wenpeng Liang <liangwenpeng@xxxxxxxxxx>;
> Yishai Hadas <yishaih@xxxxxxxxxx>; Zhu Yanjun <zyjzyj2000@xxxxxxxxx>
> Subject: [PATCH rdma-next v1 8/9] RDMA: Globally allocate and release QP
> memory
>
> From: Leon Romanovsky <leonro@xxxxxxxxxx>
>
> Convert QP object to follow IB/core general allocation scheme.
> That change allows us to make sure that restrack properly kref
> the memory.
>
> Reviewed-by: Gal Pressman <galpress@xxxxxxxxxx> #efa
> Tested-by: Gal Pressman <galpress@xxxxxxxxxx>
> Reviewed-by: Dennis Dalessandro
> <dennis.dalessandro@xxxxxxxxxxxxxxxxxxxx> #rdma and core
> Tested-by: Dennis Dalessandro
> <dennis.dalessandro@xxxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxx

Hi Leon,

I tested your changes with the irdma driver.

Tested-by: Tatyana Nikolova <tatyana.e.nikolova@xxxxxxxxx>

> ---
> drivers/infiniband/core/core_priv.h | 28 ++++--
> drivers/infiniband/core/device.c | 2 +
> drivers/infiniband/core/restrack.c | 2 +-
> drivers/infiniband/core/verbs.c | 40 ++++----
> drivers/infiniband/hw/bnxt_re/ib_verbs.c | 26 ++----
> drivers/infiniband/hw/bnxt_re/ib_verbs.h | 7 +-
> drivers/infiniband/hw/bnxt_re/main.c | 1 +
> drivers/infiniband/hw/cxgb4/iw_cxgb4.h | 5 +-
> drivers/infiniband/hw/cxgb4/provider.c | 1 +
> drivers/infiniband/hw/cxgb4/qp.c | 37 +++-----
> drivers/infiniband/hw/efa/efa.h | 5 +-
> drivers/infiniband/hw/efa/efa_main.c | 1 +
> drivers/infiniband/hw/efa/efa_verbs.c | 28 ++----
> drivers/infiniband/hw/hns/hns_roce_device.h | 5 +-
> drivers/infiniband/hw/hns/hns_roce_main.c | 1 +
> drivers/infiniband/hw/hns/hns_roce_qp.c | 28 ++----
> drivers/infiniband/hw/irdma/utils.c | 3 -
> drivers/infiniband/hw/irdma/verbs.c | 31 +++----
> drivers/infiniband/hw/mlx4/main.c | 1 +
> drivers/infiniband/hw/mlx4/mlx4_ib.h | 5 +-
> drivers/infiniband/hw/mlx4/qp.c | 25 ++---
> drivers/infiniband/hw/mlx5/gsi.c | 2 -
> drivers/infiniband/hw/mlx5/main.c | 1 +
> drivers/infiniband/hw/mlx5/mlx5_ib.h | 5 +-
> drivers/infiniband/hw/mlx5/qp.c | 56 ++++--------
> drivers/infiniband/hw/mthca/mthca_provider.c | 77 ++++++----------
> drivers/infiniband/hw/ocrdma/ocrdma_main.c | 1 +
> drivers/infiniband/hw/ocrdma/ocrdma_verbs.c | 25 ++---
> drivers/infiniband/hw/ocrdma/ocrdma_verbs.h | 5 +-
> drivers/infiniband/hw/qedr/main.c | 1 +
> drivers/infiniband/hw/qedr/qedr_roce_cm.c | 13 ++-
> drivers/infiniband/hw/qedr/qedr_roce_cm.h | 5 +-
> drivers/infiniband/hw/qedr/verbs.c | 49 +++-------
> drivers/infiniband/hw/qedr/verbs.h | 4 +-
> drivers/infiniband/hw/usnic/usnic_ib_main.c | 1 +
> drivers/infiniband/hw/usnic/usnic_ib_qp_grp.c | 34 +++----
> drivers/infiniband/hw/usnic/usnic_ib_qp_grp.h | 10 +-
> drivers/infiniband/hw/usnic/usnic_ib_verbs.c | 69 +++++++-------
> drivers/infiniband/hw/usnic/usnic_ib_verbs.h | 5 +-
> .../infiniband/hw/vmw_pvrdma/pvrdma_main.c | 1 +
> drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c | 53 +++++------
> .../infiniband/hw/vmw_pvrdma/pvrdma_verbs.h | 5 +-
> drivers/infiniband/sw/rdmavt/qp.c | 91 +++++++------------
> drivers/infiniband/sw/rdmavt/qp.h | 5 +-
> drivers/infiniband/sw/rdmavt/vt.c | 9 ++
> drivers/infiniband/sw/rxe/rxe_pool.c | 2 +-
> drivers/infiniband/sw/rxe/rxe_verbs.c | 48 +++++-----
> drivers/infiniband/sw/rxe/rxe_verbs.h | 2 +-
> drivers/infiniband/sw/siw/siw_main.c | 1 +
> drivers/infiniband/sw/siw/siw_qp.c | 2 -
> drivers/infiniband/sw/siw/siw_verbs.c | 54 +++++------
> drivers/infiniband/sw/siw/siw_verbs.h | 5 +-
> include/rdma/ib_verbs.h | 30 +++++-
> 53 files changed, 404 insertions(+), 549 deletions(-)
>
> diff --git a/drivers/infiniband/core/core_priv.h
> b/drivers/infiniband/core/core_priv.h
> index 647cca4e0240..fa2e0bbaf8c7 100644
> --- a/drivers/infiniband/core/core_priv.h
> +++ b/drivers/infiniband/core/core_priv.h
> @@ -322,13 +322,14 @@ _ib_create_qp(struct ib_device *dev, struct ib_pd
> *pd,
> struct ib_uqp_object *uobj, const char *caller)
> {
> struct ib_qp *qp;
> + int ret;
>
> if (!dev->ops.create_qp)
> return ERR_PTR(-EOPNOTSUPP);
>
> - qp = dev->ops.create_qp(pd, attr, udata);
> - if (IS_ERR(qp))
> - return qp;
> + qp = rdma_zalloc_drv_obj_numa(dev, ib_qp);
> + if (!qp)
> + return ERR_PTR(-ENOMEM);
>
> qp->device = dev;
> qp->pd = pd;
> @@ -337,14 +338,10 @@ _ib_create_qp(struct ib_device *dev, struct ib_pd
> *pd,
>
> qp->qp_type = attr->qp_type;
> qp->rwq_ind_tbl = attr->rwq_ind_tbl;
> - qp->send_cq = attr->send_cq;
> - qp->recv_cq = attr->recv_cq;
> qp->srq = attr->srq;
> - qp->rwq_ind_tbl = attr->rwq_ind_tbl;
> qp->event_handler = attr->event_handler;
> qp->port = attr->port_num;
>
> - atomic_set(&qp->usecnt, 0);
> spin_lock_init(&qp->mr_lock);
> INIT_LIST_HEAD(&qp->rdma_mrs);
> INIT_LIST_HEAD(&qp->sig_mrs);
> @@ -352,8 +349,25 @@ _ib_create_qp(struct ib_device *dev, struct ib_pd
> *pd,
> rdma_restrack_new(&qp->res, RDMA_RESTRACK_QP);
> WARN_ONCE(!udata && !caller, "Missing kernel QP owner");
> rdma_restrack_set_name(&qp->res, udata ? NULL : caller);
> + ret = dev->ops.create_qp(qp, attr, udata);
> + if (ret)
> + goto err_create;
> +
> + /*
> + * TODO: The mlx4 internally overwrites send_cq and recv_cq.
> + * Unfortunately, it is not an easy task to fix that driver.
> + */
> + qp->send_cq = attr->send_cq;
> + qp->recv_cq = attr->recv_cq;
> +
> rdma_restrack_add(&qp->res);
> return qp;
> +
> +err_create:
> + rdma_restrack_put(&qp->res);
> + kfree(qp);
> + return ERR_PTR(ret);
> +
> }
>
> struct rdma_dev_addr;
> diff --git a/drivers/infiniband/core/device.c
> b/drivers/infiniband/core/device.c
> index 9056f48bdca6..f4814bb7f082 100644
> --- a/drivers/infiniband/core/device.c
> +++ b/drivers/infiniband/core/device.c
> @@ -2654,6 +2654,7 @@ void ib_set_device_ops(struct ib_device *dev,
> const struct ib_device_ops *ops)
> SET_DEVICE_OP(dev_ops, get_hw_stats);
> SET_DEVICE_OP(dev_ops, get_link_layer);
> SET_DEVICE_OP(dev_ops, get_netdev);
> + SET_DEVICE_OP(dev_ops, get_numa_node);
> SET_DEVICE_OP(dev_ops, get_port_immutable);
> SET_DEVICE_OP(dev_ops, get_vector_affinity);
> SET_DEVICE_OP(dev_ops, get_vf_config);
> @@ -2710,6 +2711,7 @@ void ib_set_device_ops(struct ib_device *dev,
> const struct ib_device_ops *ops)
> SET_OBJ_SIZE(dev_ops, ib_cq);
> SET_OBJ_SIZE(dev_ops, ib_mw);
> SET_OBJ_SIZE(dev_ops, ib_pd);
> + SET_OBJ_SIZE(dev_ops, ib_qp);
> SET_OBJ_SIZE(dev_ops, ib_rwq_ind_table);
> SET_OBJ_SIZE(dev_ops, ib_srq);
> SET_OBJ_SIZE(dev_ops, ib_ucontext);
> diff --git a/drivers/infiniband/core/restrack.c
> b/drivers/infiniband/core/restrack.c
> index 033207882c82..1f935d9f6178 100644
> --- a/drivers/infiniband/core/restrack.c
> +++ b/drivers/infiniband/core/restrack.c
> @@ -343,7 +343,7 @@ void rdma_restrack_del(struct rdma_restrack_entry
> *res)
> rt = &dev->res[res->type];
>
> old = xa_erase(&rt->xa, res->id);
> - if (res->type == RDMA_RESTRACK_MR || res->type ==
> RDMA_RESTRACK_QP)
> + if (res->type == RDMA_RESTRACK_MR)
> return;
> WARN_ON(old != res);
>
> diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
> index 7036967e4c0b..a164609c2ee7 100644
> --- a/drivers/infiniband/core/verbs.c
> +++ b/drivers/infiniband/core/verbs.c
> @@ -1963,30 +1963,32 @@ int ib_destroy_qp_user(struct ib_qp *qp, struct
> ib_udata *udata)
> rdma_rw_cleanup_mrs(qp);
>
> rdma_counter_unbind_qp(qp, true);
> - rdma_restrack_del(&qp->res);
> ret = qp->device->ops.destroy_qp(qp, udata);
> - if (!ret) {
> - if (alt_path_sgid_attr)
> - rdma_put_gid_attr(alt_path_sgid_attr);
> - if (av_sgid_attr)
> - rdma_put_gid_attr(av_sgid_attr);
> - if (pd)
> - atomic_dec(&pd->usecnt);
> - if (scq)
> - atomic_dec(&scq->usecnt);
> - if (rcq)
> - atomic_dec(&rcq->usecnt);
> - if (srq)
> - atomic_dec(&srq->usecnt);
> - if (ind_tbl)
> - atomic_dec(&ind_tbl->usecnt);
> - if (sec)
> - ib_destroy_qp_security_end(sec);
> - } else {
> + if (ret) {
> if (sec)
> ib_destroy_qp_security_abort(sec);
> + return ret;
> }
>
> + if (alt_path_sgid_attr)
> + rdma_put_gid_attr(alt_path_sgid_attr);
> + if (av_sgid_attr)
> + rdma_put_gid_attr(av_sgid_attr);
> + if (pd)
> + atomic_dec(&pd->usecnt);
> + if (scq)
> + atomic_dec(&scq->usecnt);
> + if (rcq)
> + atomic_dec(&rcq->usecnt);
> + if (srq)
> + atomic_dec(&srq->usecnt);
> + if (ind_tbl)
> + atomic_dec(&ind_tbl->usecnt);
> + if (sec)
> + ib_destroy_qp_security_end(sec);
> +
> + rdma_restrack_del(&qp->res);
> + kfree(qp);
> return ret;
> }
> EXPORT_SYMBOL(ib_destroy_qp_user);
> diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
> b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
> index 283b6b81563c..634d1586a1fa 100644
> --- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
> +++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
> @@ -815,7 +815,7 @@ int bnxt_re_destroy_qp(struct ib_qp *ib_qp, struct
> ib_udata *udata)
> if (ib_qp->qp_type == IB_QPT_GSI && rdev->gsi_ctx.gsi_sqp) {
> rc = bnxt_re_destroy_gsi_sqp(qp);
> if (rc)
> - goto sh_fail;
> + return rc;
> }
>
> mutex_lock(&rdev->qp_lock);
> @@ -826,10 +826,7 @@ int bnxt_re_destroy_qp(struct ib_qp *ib_qp, struct
> ib_udata *udata)
> ib_umem_release(qp->rumem);
> ib_umem_release(qp->sumem);
>
> - kfree(qp);
> return 0;
> -sh_fail:
> - return rc;
> }
>
> static u8 __from_ib_qp_type(enum ib_qp_type type)
> @@ -1402,27 +1399,22 @@ static bool bnxt_re_test_qp_limits(struct
> bnxt_re_dev *rdev,
> return rc;
> }
>
> -struct ib_qp *bnxt_re_create_qp(struct ib_pd *ib_pd,
> - struct ib_qp_init_attr *qp_init_attr,
> - struct ib_udata *udata)
> +int bnxt_re_create_qp(struct ib_qp *ib_qp, struct ib_qp_init_attr
> *qp_init_attr,
> + struct ib_udata *udata)
> {
> + struct ib_pd *ib_pd = ib_qp->pd;
> struct bnxt_re_pd *pd = container_of(ib_pd, struct bnxt_re_pd,
> ib_pd);
> struct bnxt_re_dev *rdev = pd->rdev;
> struct bnxt_qplib_dev_attr *dev_attr = &rdev->dev_attr;
> - struct bnxt_re_qp *qp;
> + struct bnxt_re_qp *qp = container_of(ib_qp, struct bnxt_re_qp,
> ib_qp);
> int rc;
>
> rc = bnxt_re_test_qp_limits(rdev, qp_init_attr, dev_attr);
> if (!rc) {
> rc = -EINVAL;
> - goto exit;
> + goto fail;
> }
>
> - qp = kzalloc(sizeof(*qp), GFP_KERNEL);
> - if (!qp) {
> - rc = -ENOMEM;
> - goto exit;
> - }
> qp->rdev = rdev;
> rc = bnxt_re_init_qp_attr(qp, pd, qp_init_attr, udata);
> if (rc)
> @@ -1465,16 +1457,14 @@ struct ib_qp *bnxt_re_create_qp(struct ib_pd
> *ib_pd,
> mutex_unlock(&rdev->qp_lock);
> atomic_inc(&rdev->qp_count);
>
> - return &qp->ib_qp;
> + return 0;
> qp_destroy:
> bnxt_qplib_destroy_qp(&rdev->qplib_res, &qp->qplib_qp);
> free_umem:
> ib_umem_release(qp->rumem);
> ib_umem_release(qp->sumem);
> fail:
> - kfree(qp);
> -exit:
> - return ERR_PTR(rc);
> + return rc;
> }
>
> static u8 __from_ib_qp_state(enum ib_qp_state state)
> diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.h
> b/drivers/infiniband/hw/bnxt_re/ib_verbs.h
> index d68671cc6173..b5c6e0f4f877 100644
> --- a/drivers/infiniband/hw/bnxt_re/ib_verbs.h
> +++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.h
> @@ -78,9 +78,9 @@ struct bnxt_re_srq {
> };
>
> struct bnxt_re_qp {
> + struct ib_qp ib_qp;
> struct list_head list;
> struct bnxt_re_dev *rdev;
> - struct ib_qp ib_qp;
> spinlock_t sq_lock; /* protect sq */
> spinlock_t rq_lock; /* protect rq */
> struct bnxt_qplib_qp qplib_qp;
> @@ -179,9 +179,8 @@ int bnxt_re_query_srq(struct ib_srq *srq, struct
> ib_srq_attr *srq_attr);
> int bnxt_re_destroy_srq(struct ib_srq *srq, struct ib_udata *udata);
> int bnxt_re_post_srq_recv(struct ib_srq *srq, const struct ib_recv_wr
> *recv_wr,
> const struct ib_recv_wr **bad_recv_wr);
> -struct ib_qp *bnxt_re_create_qp(struct ib_pd *pd,
> - struct ib_qp_init_attr *qp_init_attr,
> - struct ib_udata *udata);
> +int bnxt_re_create_qp(struct ib_qp *qp, struct ib_qp_init_attr
> *qp_init_attr,
> + struct ib_udata *udata);
> int bnxt_re_modify_qp(struct ib_qp *qp, struct ib_qp_attr *qp_attr,
> int qp_attr_mask, struct ib_udata *udata);
> int bnxt_re_query_qp(struct ib_qp *qp, struct ib_qp_attr *qp_attr,
> diff --git a/drivers/infiniband/hw/bnxt_re/main.c
> b/drivers/infiniband/hw/bnxt_re/main.c
> index d5674026512a..3edf66818e4b 100644
> --- a/drivers/infiniband/hw/bnxt_re/main.c
> +++ b/drivers/infiniband/hw/bnxt_re/main.c
> @@ -709,6 +709,7 @@ static const struct ib_device_ops bnxt_re_dev_ops =
> {
> INIT_RDMA_OBJ_SIZE(ib_ah, bnxt_re_ah, ib_ah),
> INIT_RDMA_OBJ_SIZE(ib_cq, bnxt_re_cq, ib_cq),
> INIT_RDMA_OBJ_SIZE(ib_pd, bnxt_re_pd, ib_pd),
> + INIT_RDMA_OBJ_SIZE(ib_qp, bnxt_re_qp, ib_qp),
> INIT_RDMA_OBJ_SIZE(ib_srq, bnxt_re_srq, ib_srq),
> INIT_RDMA_OBJ_SIZE(ib_ucontext, bnxt_re_ucontext, ib_uctx),
> };
> diff --git a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
> b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
> index 3883af3d2312..6a2a415ec791 100644
> --- a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
> +++ b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
> @@ -989,9 +989,8 @@ int c4iw_destroy_srq(struct ib_srq *ib_srq, struct
> ib_udata *udata);
> int c4iw_create_srq(struct ib_srq *srq, struct ib_srq_init_attr *attrs,
> struct ib_udata *udata);
> int c4iw_destroy_qp(struct ib_qp *ib_qp, struct ib_udata *udata);
> -struct ib_qp *c4iw_create_qp(struct ib_pd *pd,
> - struct ib_qp_init_attr *attrs,
> - struct ib_udata *udata);
> +int c4iw_create_qp(struct ib_qp *qp, struct ib_qp_init_attr *attrs,
> + struct ib_udata *udata);
> int c4iw_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
> int attr_mask, struct ib_udata *udata);
> int c4iw_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
> diff --git a/drivers/infiniband/hw/cxgb4/provider.c
> b/drivers/infiniband/hw/cxgb4/provider.c
> index 881d515eb15a..e7337662aff8 100644
> --- a/drivers/infiniband/hw/cxgb4/provider.c
> +++ b/drivers/infiniband/hw/cxgb4/provider.c
> @@ -499,6 +499,7 @@ static const struct ib_device_ops c4iw_dev_ops = {
> INIT_RDMA_OBJ_SIZE(ib_cq, c4iw_cq, ibcq),
> INIT_RDMA_OBJ_SIZE(ib_mw, c4iw_mw, ibmw),
> INIT_RDMA_OBJ_SIZE(ib_pd, c4iw_pd, ibpd),
> + INIT_RDMA_OBJ_SIZE(ib_qp, c4iw_qp, ibqp),
> INIT_RDMA_OBJ_SIZE(ib_srq, c4iw_srq, ibsrq),
> INIT_RDMA_OBJ_SIZE(ib_ucontext, c4iw_ucontext, ibucontext),
> };
> diff --git a/drivers/infiniband/hw/cxgb4/qp.c
> b/drivers/infiniband/hw/cxgb4/qp.c
> index a81fa7a56edb..d20b4ef2c853 100644
> --- a/drivers/infiniband/hw/cxgb4/qp.c
> +++ b/drivers/infiniband/hw/cxgb4/qp.c
> @@ -2103,16 +2103,15 @@ int c4iw_destroy_qp(struct ib_qp *ib_qp, struct
> ib_udata *udata)
> ucontext ? &ucontext->uctx : &rhp->rdev.uctx, !qhp->srq);
>
> c4iw_put_wr_wait(qhp->wr_waitp);
> -
> - kfree(qhp);
> return 0;
> }
>
> -struct ib_qp *c4iw_create_qp(struct ib_pd *pd, struct ib_qp_init_attr
> *attrs,
> - struct ib_udata *udata)
> +int c4iw_create_qp(struct ib_qp *qp, struct ib_qp_init_attr *attrs,
> + struct ib_udata *udata)
> {
> + struct ib_pd *pd = qp->pd;
> struct c4iw_dev *rhp;
> - struct c4iw_qp *qhp;
> + struct c4iw_qp *qhp = to_c4iw_qp(qp);
> struct c4iw_pd *php;
> struct c4iw_cq *schp;
> struct c4iw_cq *rchp;
> @@ -2124,44 +2123,36 @@ struct ib_qp *c4iw_create_qp(struct ib_pd *pd,
> struct ib_qp_init_attr *attrs,
> struct c4iw_mm_entry *sq_key_mm, *rq_key_mm = NULL,
> *sq_db_key_mm;
> struct c4iw_mm_entry *rq_db_key_mm = NULL,
> *ma_sync_key_mm = NULL;
>
> - pr_debug("ib_pd %p\n", pd);
> -
> if (attrs->qp_type != IB_QPT_RC || attrs->create_flags)
> - return ERR_PTR(-EOPNOTSUPP);
> + return -EOPNOTSUPP;
>
> php = to_c4iw_pd(pd);
> rhp = php->rhp;
> schp = get_chp(rhp, ((struct c4iw_cq *)attrs->send_cq)->cq.cqid);
> rchp = get_chp(rhp, ((struct c4iw_cq *)attrs->recv_cq)->cq.cqid);
> if (!schp || !rchp)
> - return ERR_PTR(-EINVAL);
> + return -EINVAL;
>
> if (attrs->cap.max_inline_data > T4_MAX_SEND_INLINE)
> - return ERR_PTR(-EINVAL);
> + return -EINVAL;
>
> if (!attrs->srq) {
> if (attrs->cap.max_recv_wr > rhp-
> >rdev.hw_queue.t4_max_rq_size)
> - return ERR_PTR(-E2BIG);
> + return -E2BIG;
> rqsize = attrs->cap.max_recv_wr + 1;
> if (rqsize < 8)
> rqsize = 8;
> }
>
> if (attrs->cap.max_send_wr > rhp-
> >rdev.hw_queue.t4_max_sq_size)
> - return ERR_PTR(-E2BIG);
> + return -E2BIG;
> sqsize = attrs->cap.max_send_wr + 1;
> if (sqsize < 8)
> sqsize = 8;
>
> - qhp = kzalloc(sizeof(*qhp), GFP_KERNEL);
> - if (!qhp)
> - return ERR_PTR(-ENOMEM);
> -
> qhp->wr_waitp = c4iw_alloc_wr_wait(GFP_KERNEL);
> - if (!qhp->wr_waitp) {
> - ret = -ENOMEM;
> - goto err_free_qhp;
> - }
> + if (!qhp->wr_waitp)
> + return -ENOMEM;
>
> qhp->wq.sq.size = sqsize;
> qhp->wq.sq.memsize =
> @@ -2339,7 +2330,7 @@ struct ib_qp *c4iw_create_qp(struct ib_pd *pd,
> struct ib_qp_init_attr *attrs,
> qhp->wq.sq.qid, qhp->wq.sq.size, qhp->wq.sq.memsize,
> attrs->cap.max_send_wr, qhp->wq.rq.qid, qhp->wq.rq.size,
> qhp->wq.rq.memsize, attrs->cap.max_recv_wr);
> - return &qhp->ibqp;
> + return 0;
> err_free_ma_sync_key:
> kfree(ma_sync_key_mm);
> err_free_rq_db_key:
> @@ -2359,9 +2350,7 @@ struct ib_qp *c4iw_create_qp(struct ib_pd *pd,
> struct ib_qp_init_attr *attrs,
> ucontext ? &ucontext->uctx : &rhp->rdev.uctx, !attrs->srq);
> err_free_wr_wait:
> c4iw_put_wr_wait(qhp->wr_waitp);
> -err_free_qhp:
> - kfree(qhp);
> - return ERR_PTR(ret);
> + return ret;
> }
>
> int c4iw_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
> diff --git a/drivers/infiniband/hw/efa/efa.h
> b/drivers/infiniband/hw/efa/efa.h
> index 2b8ca099b381..1a1e60eee1dc 100644
> --- a/drivers/infiniband/hw/efa/efa.h
> +++ b/drivers/infiniband/hw/efa/efa.h
> @@ -132,9 +132,8 @@ int efa_query_pkey(struct ib_device *ibdev, u32
> port, u16 index,
> int efa_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata);
> int efa_dealloc_pd(struct ib_pd *ibpd, struct ib_udata *udata);
> int efa_destroy_qp(struct ib_qp *ibqp, struct ib_udata *udata);
> -struct ib_qp *efa_create_qp(struct ib_pd *ibpd,
> - struct ib_qp_init_attr *init_attr,
> - struct ib_udata *udata);
> +int efa_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *init_attr,
> + struct ib_udata *udata);
> int efa_destroy_cq(struct ib_cq *ibcq, struct ib_udata *udata);
> int efa_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
> struct ib_udata *udata);
> diff --git a/drivers/infiniband/hw/efa/efa_main.c
> b/drivers/infiniband/hw/efa/efa_main.c
> index 203e6ddcacbc..997947d77de6 100644
> --- a/drivers/infiniband/hw/efa/efa_main.c
> +++ b/drivers/infiniband/hw/efa/efa_main.c
> @@ -271,6 +271,7 @@ static const struct ib_device_ops efa_dev_ops = {
> INIT_RDMA_OBJ_SIZE(ib_ah, efa_ah, ibah),
> INIT_RDMA_OBJ_SIZE(ib_cq, efa_cq, ibcq),
> INIT_RDMA_OBJ_SIZE(ib_pd, efa_pd, ibpd),
> + INIT_RDMA_OBJ_SIZE(ib_qp, efa_qp, ibqp),
> INIT_RDMA_OBJ_SIZE(ib_ucontext, efa_ucontext, ibucontext),
> };
>
> diff --git a/drivers/infiniband/hw/efa/efa_verbs.c
> b/drivers/infiniband/hw/efa/efa_verbs.c
> index b1c4780e86be..e5f9d90aad5e 100644
> --- a/drivers/infiniband/hw/efa/efa_verbs.c
> +++ b/drivers/infiniband/hw/efa/efa_verbs.c
> @@ -450,7 +450,6 @@ int efa_destroy_qp(struct ib_qp *ibqp, struct
> ib_udata *udata)
> qp->rq_size, DMA_TO_DEVICE);
> }
>
> - kfree(qp);
> return 0;
> }
>
> @@ -609,17 +608,16 @@ static int efa_qp_validate_attr(struct efa_dev
> *dev,
> return 0;
> }
>
> -struct ib_qp *efa_create_qp(struct ib_pd *ibpd,
> - struct ib_qp_init_attr *init_attr,
> - struct ib_udata *udata)
> +int efa_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *init_attr,
> + struct ib_udata *udata)
> {
> struct efa_com_create_qp_params create_qp_params = {};
> struct efa_com_create_qp_result create_qp_resp;
> - struct efa_dev *dev = to_edev(ibpd->device);
> + struct efa_dev *dev = to_edev(ibqp->device);
> struct efa_ibv_create_qp_resp resp = {};
> struct efa_ibv_create_qp cmd = {};
> + struct efa_qp *qp = to_eqp(ibqp);
> struct efa_ucontext *ucontext;
> - struct efa_qp *qp;
> int err;
>
> ucontext = rdma_udata_to_drv_context(udata, struct efa_ucontext,
> @@ -664,14 +662,8 @@ struct ib_qp *efa_create_qp(struct ib_pd *ibpd,
> goto err_out;
> }
>
> - qp = kzalloc(sizeof(*qp), GFP_KERNEL);
> - if (!qp) {
> - err = -ENOMEM;
> - goto err_out;
> - }
> -
> create_qp_params.uarn = ucontext->uarn;
> - create_qp_params.pd = to_epd(ibpd)->pdn;
> + create_qp_params.pd = to_epd(ibqp->pd)->pdn;
>
> if (init_attr->qp_type == IB_QPT_UD) {
> create_qp_params.qp_type = EFA_ADMIN_QP_TYPE_UD;
> @@ -682,7 +674,7 @@ struct ib_qp *efa_create_qp(struct ib_pd *ibpd,
> "Unsupported qp type %d driver qp type %d\n",
> init_attr->qp_type, cmd.driver_qp_type);
> err = -EOPNOTSUPP;
> - goto err_free_qp;
> + goto err_out;
> }
>
> ibdev_dbg(&dev->ibdev, "Create QP: qp type %d driver qp type
> %#x\n",
> @@ -700,7 +692,7 @@ struct ib_qp *efa_create_qp(struct ib_pd *ibpd,
> qp->rq_size,
> DMA_TO_DEVICE);
> if (!qp->rq_cpu_addr) {
> err = -ENOMEM;
> - goto err_free_qp;
> + goto err_out;
> }
>
> ibdev_dbg(&dev->ibdev,
> @@ -746,7 +738,7 @@ struct ib_qp *efa_create_qp(struct ib_pd *ibpd,
>
> ibdev_dbg(&dev->ibdev, "Created qp[%d]\n", qp->ibqp.qp_num);
>
> - return &qp->ibqp;
> + return 0;
>
> err_remove_mmap_entries:
> efa_qp_user_mmap_entries_remove(qp);
> @@ -756,11 +748,9 @@ struct ib_qp *efa_create_qp(struct ib_pd *ibpd,
> if (qp->rq_size)
> efa_free_mapped(dev, qp->rq_cpu_addr, qp-
> >rq_dma_addr,
> qp->rq_size, DMA_TO_DEVICE);
> -err_free_qp:
> - kfree(qp);
> err_out:
> atomic64_inc(&dev->stats.create_qp_err);
> - return ERR_PTR(err);
> + return err;
> }
>
> static const struct {
> diff --git a/drivers/infiniband/hw/hns/hns_roce_device.h
> b/drivers/infiniband/hw/hns/hns_roce_device.h
> index 991f65269fa6..0c3eb1163977 100644
> --- a/drivers/infiniband/hw/hns/hns_roce_device.h
> +++ b/drivers/infiniband/hw/hns/hns_roce_device.h
> @@ -1216,9 +1216,8 @@ int hns_roce_destroy_srq(struct ib_srq *ibsrq,
> struct ib_udata *udata);
> int hns_roce_alloc_xrcd(struct ib_xrcd *ib_xrcd, struct ib_udata *udata);
> int hns_roce_dealloc_xrcd(struct ib_xrcd *ib_xrcd, struct ib_udata *udata);
>
> -struct ib_qp *hns_roce_create_qp(struct ib_pd *ib_pd,
> - struct ib_qp_init_attr *init_attr,
> - struct ib_udata *udata);
> +int hns_roce_create_qp(struct ib_qp *ib_qp, struct ib_qp_init_attr
> *init_attr,
> + struct ib_udata *udata);
> int hns_roce_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
> int attr_mask, struct ib_udata *udata);
> void init_flush_work(struct hns_roce_dev *hr_dev, struct hns_roce_qp
> *hr_qp);
> diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c
> b/drivers/infiniband/hw/hns/hns_roce_main.c
> index 078a97193f0e..23b88a5a372f 100644
> --- a/drivers/infiniband/hw/hns/hns_roce_main.c
> +++ b/drivers/infiniband/hw/hns/hns_roce_main.c
> @@ -454,6 +454,7 @@ static const struct ib_device_ops hns_roce_dev_ops
> = {
> INIT_RDMA_OBJ_SIZE(ib_ah, hns_roce_ah, ibah),
> INIT_RDMA_OBJ_SIZE(ib_cq, hns_roce_cq, ib_cq),
> INIT_RDMA_OBJ_SIZE(ib_pd, hns_roce_pd, ibpd),
> + INIT_RDMA_OBJ_SIZE(ib_qp, hns_roce_qp, ibqp),
> INIT_RDMA_OBJ_SIZE(ib_ucontext, hns_roce_ucontext,
> ibucontext),
> };
>
> diff --git a/drivers/infiniband/hw/hns/hns_roce_qp.c
> b/drivers/infiniband/hw/hns/hns_roce_qp.c
> index c3e2fee16c0e..fd0f71acd470 100644
> --- a/drivers/infiniband/hw/hns/hns_roce_qp.c
> +++ b/drivers/infiniband/hw/hns/hns_roce_qp.c
> @@ -959,8 +959,6 @@ static int set_qp_param(struct hns_roce_dev
> *hr_dev, struct hns_roce_qp *hr_qp,
> struct ib_device *ibdev = &hr_dev->ib_dev;
> int ret;
>
> - hr_qp->ibqp.qp_type = init_attr->qp_type;
> -
> if (init_attr->cap.max_inline_data > hr_dev->caps.max_sq_inline)
> init_attr->cap.max_inline_data = hr_dev-
> >caps.max_sq_inline;
>
> @@ -1121,8 +1119,6 @@ void hns_roce_qp_destroy(struct hns_roce_dev
> *hr_dev, struct hns_roce_qp *hr_qp,
> free_qp_buf(hr_dev, hr_qp);
> free_kernel_wrid(hr_qp);
> free_qp_db(hr_dev, hr_qp, udata);
> -
> - kfree(hr_qp);
> }
>
> static int check_qp_type(struct hns_roce_dev *hr_dev, enum ib_qp_type
> type,
> @@ -1154,22 +1150,18 @@ static int check_qp_type(struct hns_roce_dev
> *hr_dev, enum ib_qp_type type,
> return -EOPNOTSUPP;
> }
>
> -struct ib_qp *hns_roce_create_qp(struct ib_pd *pd,
> - struct ib_qp_init_attr *init_attr,
> - struct ib_udata *udata)
> +int hns_roce_create_qp(struct ib_qp *qp, struct ib_qp_init_attr *init_attr,
> + struct ib_udata *udata)
> {
> - struct ib_device *ibdev = pd ? pd->device : init_attr->xrcd->device;
> + struct ib_device *ibdev = qp->device;
> struct hns_roce_dev *hr_dev = to_hr_dev(ibdev);
> - struct hns_roce_qp *hr_qp;
> + struct hns_roce_qp *hr_qp = to_hr_qp(qp);
> + struct ib_pd *pd = qp->pd;
> int ret;
>
> ret = check_qp_type(hr_dev, init_attr->qp_type, !!udata);
> if (ret)
> - return ERR_PTR(ret);
> -
> - hr_qp = kzalloc(sizeof(*hr_qp), GFP_KERNEL);
> - if (!hr_qp)
> - return ERR_PTR(-ENOMEM);
> + return ret;
>
> if (init_attr->qp_type == IB_QPT_XRC_TGT)
> hr_qp->xrcdn = to_hr_xrcd(init_attr->xrcd)->xrcdn;
> @@ -1180,15 +1172,11 @@ struct ib_qp *hns_roce_create_qp(struct ib_pd
> *pd,
> }
>
> ret = hns_roce_create_qp_common(hr_dev, pd, init_attr, udata,
> hr_qp);
> - if (ret) {
> + if (ret)
> ibdev_err(ibdev, "Create QP type 0x%x failed(%d)\n",
> init_attr->qp_type, ret);
>
> - kfree(hr_qp);
> - return ERR_PTR(ret);
> - }
> -
> - return &hr_qp->ibqp;
> + return ret;
> }
>
> int to_hr_qp_type(int qp_type)
> diff --git a/drivers/infiniband/hw/irdma/utils.c
> b/drivers/infiniband/hw/irdma/utils.c
> index 5bbe44e54f9a..e94470991fe0 100644
> --- a/drivers/infiniband/hw/irdma/utils.c
> +++ b/drivers/infiniband/hw/irdma/utils.c
> @@ -1141,10 +1141,7 @@ void irdma_free_qp_rsrc(struct irdma_qp *iwqp)
> iwqp->kqp.dma_mem.va, iwqp-
> >kqp.dma_mem.pa);
> iwqp->kqp.dma_mem.va = NULL;
> kfree(iwqp->kqp.sq_wrid_mem);
> - iwqp->kqp.sq_wrid_mem = NULL;
> kfree(iwqp->kqp.rq_wrid_mem);
> - iwqp->kqp.rq_wrid_mem = NULL;
> - kfree(iwqp);
> }
>
> /**
> diff --git a/drivers/infiniband/hw/irdma/verbs.c
> b/drivers/infiniband/hw/irdma/verbs.c
> index 9712f6902ba8..9b8c451e2426 100644
> --- a/drivers/infiniband/hw/irdma/verbs.c
> +++ b/drivers/infiniband/hw/irdma/verbs.c
> @@ -792,18 +792,19 @@ static int irdma_validate_qp_attrs(struct
> ib_qp_init_attr *init_attr,
>
> /**
> * irdma_create_qp - create qp
> - * @ibpd: ptr of pd
> + * @ibqp: ptr of qp
> * @init_attr: attributes for qp
> * @udata: user data for create qp
> */
> -static struct ib_qp *irdma_create_qp(struct ib_pd *ibpd,
> - struct ib_qp_init_attr *init_attr,
> - struct ib_udata *udata)
> +static int irdma_create_qp(struct ib_qp *ibqp,
> + struct ib_qp_init_attr *init_attr,
> + struct ib_udata *udata)
> {
> + struct ib_pd *ibpd = ibqp->pd;
> struct irdma_pd *iwpd = to_iwpd(ibpd);
> struct irdma_device *iwdev = to_iwdev(ibpd->device);
> struct irdma_pci_f *rf = iwdev->rf;
> - struct irdma_qp *iwqp;
> + struct irdma_qp *iwqp = to_iwqp(ibqp);
> struct irdma_create_qp_req req;
> struct irdma_create_qp_resp uresp = {};
> u32 qp_num = 0;
> @@ -820,7 +821,7 @@ static struct ib_qp *irdma_create_qp(struct ib_pd
> *ibpd,
>
> err_code = irdma_validate_qp_attrs(init_attr, iwdev);
> if (err_code)
> - return ERR_PTR(err_code);
> + return err_code;
>
> sq_size = init_attr->cap.max_send_wr;
> rq_size = init_attr->cap.max_recv_wr;
> @@ -833,10 +834,6 @@ static struct ib_qp *irdma_create_qp(struct ib_pd
> *ibpd,
> init_info.qp_uk_init_info.max_rq_frag_cnt = init_attr-
> >cap.max_recv_sge;
> init_info.qp_uk_init_info.max_inline_data = init_attr-
> >cap.max_inline_data;
>
> - iwqp = kzalloc(sizeof(*iwqp), GFP_KERNEL);
> - if (!iwqp)
> - return ERR_PTR(-ENOMEM);
> -
> qp = &iwqp->sc_qp;
> qp->qp_uk.back_qp = iwqp;
> qp->qp_uk.lock = &iwqp->lock;
> @@ -849,10 +846,8 @@ static struct ib_qp *irdma_create_qp(struct ib_pd
> *ibpd,
> iwqp->q2_ctx_mem.size,
> &iwqp->q2_ctx_mem.pa,
> GFP_KERNEL);
> - if (!iwqp->q2_ctx_mem.va) {
> - err_code = -ENOMEM;
> - goto error;
> - }
> + if (!iwqp->q2_ctx_mem.va)
> + return -ENOMEM;
>
> init_info.q2 = iwqp->q2_ctx_mem.va;
> init_info.q2_pa = iwqp->q2_ctx_mem.pa;
> @@ -1001,17 +996,16 @@ static struct ib_qp *irdma_create_qp(struct ib_pd
> *ibpd,
> if (err_code) {
> ibdev_dbg(&iwdev->ibdev, "VERBS: copy_to_udata
> failed\n");
> irdma_destroy_qp(&iwqp->ibqp, udata);
> - return ERR_PTR(err_code);
> + return err_code;
> }
> }
>
> init_completion(&iwqp->free_qp);
> - return &iwqp->ibqp;
> + return 0;
>
> error:
> irdma_free_qp_rsrc(iwqp);
> -
> - return ERR_PTR(err_code);
> + return err_code;
> }
>
> static int irdma_get_ib_acc_flags(struct irdma_qp *iwqp)
> @@ -4406,6 +4400,7 @@ static const struct ib_device_ops irdma_dev_ops =
> {
> INIT_RDMA_OBJ_SIZE(ib_ah, irdma_ah, ibah),
> INIT_RDMA_OBJ_SIZE(ib_cq, irdma_cq, ibcq),
> INIT_RDMA_OBJ_SIZE(ib_mw, irdma_mr, ibmw),
> + INIT_RDMA_OBJ_SIZE(ib_qp, irdma_qp, ibqp),
> };
>
> /**
> diff --git a/drivers/infiniband/hw/mlx4/main.c
> b/drivers/infiniband/hw/mlx4/main.c
> index ae4c91b612ce..f367f4a4abff 100644
> --- a/drivers/infiniband/hw/mlx4/main.c
> +++ b/drivers/infiniband/hw/mlx4/main.c
> @@ -2577,6 +2577,7 @@ static const struct ib_device_ops mlx4_ib_dev_ops
> = {
> INIT_RDMA_OBJ_SIZE(ib_ah, mlx4_ib_ah, ibah),
> INIT_RDMA_OBJ_SIZE(ib_cq, mlx4_ib_cq, ibcq),
> INIT_RDMA_OBJ_SIZE(ib_pd, mlx4_ib_pd, ibpd),
> + INIT_RDMA_OBJ_SIZE(ib_qp, mlx4_ib_qp, ibqp),
> INIT_RDMA_OBJ_SIZE(ib_srq, mlx4_ib_srq, ibsrq),
> INIT_RDMA_OBJ_SIZE(ib_ucontext, mlx4_ib_ucontext, ibucontext),
> };
> diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h
> b/drivers/infiniband/hw/mlx4/mlx4_ib.h
> index e856cf23a0a1..c60f6e9ac640 100644
> --- a/drivers/infiniband/hw/mlx4/mlx4_ib.h
> +++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h
> @@ -792,9 +792,8 @@ void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq,
> int wqe_index);
> int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, const struct ib_recv_wr *wr,
> const struct ib_recv_wr **bad_wr);
>
> -struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
> - struct ib_qp_init_attr *init_attr,
> - struct ib_udata *udata);
> +int mlx4_ib_create_qp(struct ib_qp *qp, struct ib_qp_init_attr *init_attr,
> + struct ib_udata *udata);
> int mlx4_ib_destroy_qp(struct ib_qp *qp, struct ib_udata *udata);
> void mlx4_ib_drain_sq(struct ib_qp *qp);
> void mlx4_ib_drain_rq(struct ib_qp *qp);
> diff --git a/drivers/infiniband/hw/mlx4/qp.c
> b/drivers/infiniband/hw/mlx4/qp.c
> index 4a2ef7daaded..8662f462e2a5 100644
> --- a/drivers/infiniband/hw/mlx4/qp.c
> +++ b/drivers/infiniband/hw/mlx4/qp.c
> @@ -1578,24 +1578,19 @@ static int _mlx4_ib_create_qp(struct ib_pd *pd,
> struct mlx4_ib_qp *qp,
> return 0;
> }
>
> -struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
> - struct ib_qp_init_attr *init_attr,
> - struct ib_udata *udata) {
> - struct ib_device *device = pd ? pd->device : init_attr->xrcd->device;
> +int mlx4_ib_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *init_attr,
> + struct ib_udata *udata)
> +{
> + struct ib_device *device = ibqp->device;
> struct mlx4_ib_dev *dev = to_mdev(device);
> - struct mlx4_ib_qp *qp;
> + struct mlx4_ib_qp *qp = to_mqp(ibqp);
> + struct ib_pd *pd = ibqp->pd;
> int ret;
>
> - qp = kzalloc(sizeof(*qp), GFP_KERNEL);
> - if (!qp)
> - return ERR_PTR(-ENOMEM);
> -
> mutex_init(&qp->mutex);
> ret = _mlx4_ib_create_qp(pd, qp, init_attr, udata);
> - if (ret) {
> - kfree(qp);
> - return ERR_PTR(ret);
> - }
> + if (ret)
> + return ret;
>
> if (init_attr->qp_type == IB_QPT_GSI &&
> !(init_attr->create_flags & MLX4_IB_QP_CREATE_ROCE_V2_GSI)) {
> @@ -1618,7 +1613,7 @@ struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
> init_attr->create_flags &=
> ~MLX4_IB_QP_CREATE_ROCE_V2_GSI;
> }
> }
> - return &qp->ibqp;
> + return 0;
> }
>
> static int _mlx4_ib_destroy_qp(struct ib_qp *qp, struct ib_udata *udata)
> @@ -1646,8 +1641,6 @@ static int _mlx4_ib_destroy_qp(struct ib_qp *qp,
> struct ib_udata *udata)
> }
>
> kfree(mqp->sqp);
> - kfree(mqp);
> -
> return 0;
> }
>
> diff --git a/drivers/infiniband/hw/mlx5/gsi.c
> b/drivers/infiniband/hw/mlx5/gsi.c
> index 541da52470cb..3ad8f637c589 100644
> --- a/drivers/infiniband/hw/mlx5/gsi.c
> +++ b/drivers/infiniband/hw/mlx5/gsi.c
> @@ -193,8 +193,6 @@ int mlx5_ib_destroy_gsi(struct mlx5_ib_qp *mqp)
>
> kfree(gsi->outstanding_wrs);
> kfree(gsi->tx_qps);
> - kfree(mqp);
> -
> return 0;
> }
>
> diff --git a/drivers/infiniband/hw/mlx5/main.c
> b/drivers/infiniband/hw/mlx5/main.c
> index bcdbc3033b0a..7a6bafc19c9b 100644
> --- a/drivers/infiniband/hw/mlx5/main.c
> +++ b/drivers/infiniband/hw/mlx5/main.c
> @@ -3805,6 +3805,7 @@ static const struct ib_device_ops mlx5_ib_dev_ops
> = {
> INIT_RDMA_OBJ_SIZE(ib_counters, mlx5_ib_mcounters, ibcntrs),
> INIT_RDMA_OBJ_SIZE(ib_cq, mlx5_ib_cq, ibcq),
> INIT_RDMA_OBJ_SIZE(ib_pd, mlx5_ib_pd, ibpd),
> + INIT_RDMA_OBJ_SIZE(ib_qp, mlx5_ib_qp, ibqp),
> INIT_RDMA_OBJ_SIZE(ib_srq, mlx5_ib_srq, ibsrq),
> INIT_RDMA_OBJ_SIZE(ib_ucontext, mlx5_ib_ucontext, ibucontext),
> };
> diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h
> b/drivers/infiniband/hw/mlx5/mlx5_ib.h
> index f2c8a6375b16..d662896e7fba 100644
> --- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
> +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
> @@ -1237,9 +1237,8 @@ int mlx5_ib_post_srq_recv(struct ib_srq *ibsrq,
> const struct ib_recv_wr *wr,
> const struct ib_recv_wr **bad_wr);
> int mlx5_ib_enable_lb(struct mlx5_ib_dev *dev, bool td, bool qp);
> void mlx5_ib_disable_lb(struct mlx5_ib_dev *dev, bool td, bool qp);
> -struct ib_qp *mlx5_ib_create_qp(struct ib_pd *pd,
> - struct ib_qp_init_attr *init_attr,
> - struct ib_udata *udata);
> +int mlx5_ib_create_qp(struct ib_qp *qp, struct ib_qp_init_attr *init_attr,
> + struct ib_udata *udata);
> int mlx5_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
> int attr_mask, struct ib_udata *udata);
> int mlx5_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int
> qp_attr_mask,
> diff --git a/drivers/infiniband/hw/mlx5/qp.c
> b/drivers/infiniband/hw/mlx5/qp.c
> index d6c6bfe9921a..18b018f1db83 100644
> --- a/drivers/infiniband/hw/mlx5/qp.c
> +++ b/drivers/infiniband/hw/mlx5/qp.c
> @@ -3116,7 +3116,6 @@ static int mlx5_ib_destroy_dct(struct mlx5_ib_qp
> *mqp)
> }
>
> kfree(mqp->dct.in);
> - kfree(mqp);
> return 0;
> }
>
> @@ -3154,25 +3153,23 @@ static int check_ucmd_data(struct mlx5_ib_dev
> *dev,
> return ret ? 0 : -EINVAL;
> }
>
> -struct ib_qp *mlx5_ib_create_qp(struct ib_pd *pd, struct ib_qp_init_attr
> *attr,
> - struct ib_udata *udata)
> +int mlx5_ib_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *attr,
> + struct ib_udata *udata)
> {
> struct mlx5_create_qp_params params = {};
> - struct mlx5_ib_dev *dev;
> - struct mlx5_ib_qp *qp;
> + struct mlx5_ib_dev *dev = to_mdev(ibqp->device);
> + struct mlx5_ib_qp *qp = to_mqp(ibqp);
> + struct ib_pd *pd = ibqp->pd;
> enum ib_qp_type type;
> int err;
>
> - dev = pd ? to_mdev(pd->device) :
> - to_mdev(to_mxrcd(attr->xrcd)->ibxrcd.device);
> -
> err = check_qp_type(dev, attr, &type);
> if (err)
> - return ERR_PTR(err);
> + return err;
>
> err = check_valid_flow(dev, pd, attr, udata);
> if (err)
> - return ERR_PTR(err);
> + return err;
>
> params.udata = udata;
> params.uidx = MLX5_IB_DEFAULT_UIDX;
> @@ -3182,49 +3179,43 @@ struct ib_qp *mlx5_ib_create_qp(struct ib_pd
> *pd, struct ib_qp_init_attr *attr,
> if (udata) {
> err = process_udata_size(dev, &params);
> if (err)
> - return ERR_PTR(err);
> + return err;
>
> err = check_ucmd_data(dev, &params);
> if (err)
> - return ERR_PTR(err);
> + return err;
>
> params.ucmd = kzalloc(params.ucmd_size, GFP_KERNEL);
> if (!params.ucmd)
> - return ERR_PTR(-ENOMEM);
> + return -ENOMEM;
>
> err = ib_copy_from_udata(params.ucmd, udata,
> params.inlen);
> if (err)
> goto free_ucmd;
> }
>
> - qp = kzalloc(sizeof(*qp), GFP_KERNEL);
> - if (!qp) {
> - err = -ENOMEM;
> - goto free_ucmd;
> - }
> -
> mutex_init(&qp->mutex);
> qp->type = type;
> if (udata) {
> err = process_vendor_flags(dev, qp, params.ucmd, attr);
> if (err)
> - goto free_qp;
> + goto free_ucmd;
>
> err = get_qp_uidx(qp, &params);
> if (err)
> - goto free_qp;
> + goto free_ucmd;
> }
> err = process_create_flags(dev, qp, attr);
> if (err)
> - goto free_qp;
> + goto free_ucmd;
>
> err = check_qp_attr(dev, qp, attr);
> if (err)
> - goto free_qp;
> + goto free_ucmd;
>
> err = create_qp(dev, pd, qp, &params);
> if (err)
> - goto free_qp;
> + goto free_ucmd;
>
> kfree(params.ucmd);
> params.ucmd = NULL;
> @@ -3239,7 +3230,7 @@ struct ib_qp *mlx5_ib_create_qp(struct ib_pd *pd,
> struct ib_qp_init_attr *attr,
> if (err)
> goto destroy_qp;
>
> - return &qp->ibqp;
> + return 0;
>
> destroy_qp:
> switch (qp->type) {
> @@ -3250,22 +3241,12 @@ struct ib_qp *mlx5_ib_create_qp(struct ib_pd
> *pd, struct ib_qp_init_attr *attr,
> mlx5_ib_destroy_gsi(qp);
> break;
> default:
> - /*
> - * These lines below are temp solution till QP allocation
> - * will be moved to be under IB/core responsiblity.
> - */
> - qp->ibqp.send_cq = attr->send_cq;
> - qp->ibqp.recv_cq = attr->recv_cq;
> - qp->ibqp.pd = pd;
> destroy_qp_common(dev, qp, udata);
> }
>
> - qp = NULL;
> -free_qp:
> - kfree(qp);
> free_ucmd:
> kfree(params.ucmd);
> - return ERR_PTR(err);
> + return err;
> }
>
> int mlx5_ib_destroy_qp(struct ib_qp *qp, struct ib_udata *udata)
> @@ -3280,9 +3261,6 @@ int mlx5_ib_destroy_qp(struct ib_qp *qp, struct
> ib_udata *udata)
> return mlx5_ib_destroy_dct(mqp);
>
> destroy_qp_common(dev, mqp, udata);
> -
> - kfree(mqp);
> -
> return 0;
> }
>
> diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c
> b/drivers/infiniband/hw/mthca/mthca_provider.c
> index adf4fcf0fee4..ceee23ebc0f2 100644
> --- a/drivers/infiniband/hw/mthca/mthca_provider.c
> +++ b/drivers/infiniband/hw/mthca/mthca_provider.c
> @@ -459,52 +459,45 @@ static int mthca_destroy_srq(struct ib_srq *srq,
> struct ib_udata *udata)
> return 0;
> }
>
> -static struct ib_qp *mthca_create_qp(struct ib_pd *pd,
> - struct ib_qp_init_attr *init_attr,
> - struct ib_udata *udata)
> +static int mthca_create_qp(struct ib_qp *ibqp,
> + struct ib_qp_init_attr *init_attr,
> + struct ib_udata *udata)
> {
> struct mthca_ucontext *context = rdma_udata_to_drv_context(
> udata, struct mthca_ucontext, ibucontext);
> struct mthca_create_qp ucmd;
> - struct mthca_qp *qp;
> + struct mthca_qp *qp = to_mqp(ibqp);
> + struct mthca_dev *dev = to_mdev(ibqp->device);
> int err;
>
> if (init_attr->create_flags)
> - return ERR_PTR(-EOPNOTSUPP);
> + return -EOPNOTSUPP;
>
> switch (init_attr->qp_type) {
> case IB_QPT_RC:
> case IB_QPT_UC:
> case IB_QPT_UD:
> {
> - qp = kzalloc(sizeof(*qp), GFP_KERNEL);
> - if (!qp)
> - return ERR_PTR(-ENOMEM);
> -
> if (udata) {
> - if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd))
> {
> - kfree(qp);
> - return ERR_PTR(-EFAULT);
> - }
> + if (ib_copy_from_udata(&ucmd, udata,
> sizeof(ucmd)))
> + return -EFAULT;
>
> - err = mthca_map_user_db(to_mdev(pd->device),
> &context->uar,
> + err = mthca_map_user_db(dev, &context->uar,
> context->db_tab,
> - ucmd.sq_db_index,
> ucmd.sq_db_page);
> - if (err) {
> - kfree(qp);
> - return ERR_PTR(err);
> - }
> + ucmd.sq_db_index,
> + ucmd.sq_db_page);
> + if (err)
> + return err;
>
> - err = mthca_map_user_db(to_mdev(pd->device),
> &context->uar,
> + err = mthca_map_user_db(dev, &context->uar,
> context->db_tab,
> - ucmd.rq_db_index,
> ucmd.rq_db_page);
> + ucmd.rq_db_index,
> + ucmd.rq_db_page);
> if (err) {
> - mthca_unmap_user_db(to_mdev(pd-
> >device),
> - &context->uar,
> + mthca_unmap_user_db(dev, &context->uar,
> context->db_tab,
> ucmd.sq_db_index);
> - kfree(qp);
> - return ERR_PTR(err);
> + return err;
> }
>
> qp->mr.ibmr.lkey = ucmd.lkey;
> @@ -512,20 +505,16 @@ static struct ib_qp *mthca_create_qp(struct ib_pd
> *pd,
> qp->rq.db_index = ucmd.rq_db_index;
> }
>
> - err = mthca_alloc_qp(to_mdev(pd->device), to_mpd(pd),
> + err = mthca_alloc_qp(dev, to_mpd(ibqp->pd),
> to_mcq(init_attr->send_cq),
> to_mcq(init_attr->recv_cq),
> init_attr->qp_type, init_attr->sq_sig_type,
> &init_attr->cap, qp, udata);
>
> if (err && udata) {
> - mthca_unmap_user_db(to_mdev(pd->device),
> - &context->uar,
> - context->db_tab,
> + mthca_unmap_user_db(dev, &context->uar,
> context->db_tab,
> ucmd.sq_db_index);
> - mthca_unmap_user_db(to_mdev(pd->device),
> - &context->uar,
> - context->db_tab,
> + mthca_unmap_user_db(dev, &context->uar,
> context->db_tab,
> ucmd.rq_db_index);
> }
>
> @@ -535,34 +524,28 @@ static struct ib_qp *mthca_create_qp(struct ib_pd
> *pd,
> case IB_QPT_SMI:
> case IB_QPT_GSI:
> {
> - qp = kzalloc(sizeof(*qp), GFP_KERNEL);
> - if (!qp)
> - return ERR_PTR(-ENOMEM);
> qp->sqp = kzalloc(sizeof(struct mthca_sqp), GFP_KERNEL);
> - if (!qp->sqp) {
> - kfree(qp);
> - return ERR_PTR(-ENOMEM);
> - }
> + if (!qp->sqp)
> + return -ENOMEM;
>
> qp->ibqp.qp_num = init_attr->qp_type == IB_QPT_SMI ? 0 :
> 1;
>
> - err = mthca_alloc_sqp(to_mdev(pd->device), to_mpd(pd),
> + err = mthca_alloc_sqp(dev, to_mpd(ibqp->pd),
> to_mcq(init_attr->send_cq),
> to_mcq(init_attr->recv_cq),
> init_attr->sq_sig_type, &init_attr->cap,
> - qp->ibqp.qp_num, init_attr->port_num,
> - qp, udata);
> + qp->ibqp.qp_num, init_attr->port_num,
> qp,
> + udata);
> break;
> }
> default:
> /* Don't support raw QPs */
> - return ERR_PTR(-EOPNOTSUPP);
> + return -EOPNOTSUPP;
> }
>
> if (err) {
> kfree(qp->sqp);
> - kfree(qp);
> - return ERR_PTR(err);
> + return err;
> }
>
> init_attr->cap.max_send_wr = qp->sq.max;
> @@ -571,7 +554,7 @@ static struct ib_qp *mthca_create_qp(struct ib_pd
> *pd,
> init_attr->cap.max_recv_sge = qp->rq.max_gs;
> init_attr->cap.max_inline_data = qp->max_inline_data;
>
> - return &qp->ibqp;
> + return 0;
> }
>
> static int mthca_destroy_qp(struct ib_qp *qp, struct ib_udata *udata)
> @@ -594,7 +577,6 @@ static int mthca_destroy_qp(struct ib_qp *qp, struct
> ib_udata *udata)
> }
> mthca_free_qp(to_mdev(qp->device), to_mqp(qp));
> kfree(to_mqp(qp)->sqp);
> - kfree(to_mqp(qp));
> return 0;
> }
>
> @@ -1121,6 +1103,7 @@ static const struct ib_device_ops mthca_dev_ops =
> {
> INIT_RDMA_OBJ_SIZE(ib_ah, mthca_ah, ibah),
> INIT_RDMA_OBJ_SIZE(ib_cq, mthca_cq, ibcq),
> INIT_RDMA_OBJ_SIZE(ib_pd, mthca_pd, ibpd),
> + INIT_RDMA_OBJ_SIZE(ib_qp, mthca_qp, ibqp),
> INIT_RDMA_OBJ_SIZE(ib_ucontext, mthca_ucontext, ibucontext),
> };
>
> diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_main.c
> b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
> index f329db0c591f..7abf6cf1e937 100644
> --- a/drivers/infiniband/hw/ocrdma/ocrdma_main.c
> +++ b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
> @@ -185,6 +185,7 @@ static const struct ib_device_ops ocrdma_dev_ops = {
> INIT_RDMA_OBJ_SIZE(ib_ah, ocrdma_ah, ibah),
> INIT_RDMA_OBJ_SIZE(ib_cq, ocrdma_cq, ibcq),
> INIT_RDMA_OBJ_SIZE(ib_pd, ocrdma_pd, ibpd),
> + INIT_RDMA_OBJ_SIZE(ib_qp, ocrdma_qp, ibqp),
> INIT_RDMA_OBJ_SIZE(ib_ucontext, ocrdma_ucontext, ibucontext),
> };
>
> diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
> b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
> index 58619ce64d0d..735123d0e9ec 100644
> --- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
> +++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
> @@ -1288,19 +1288,19 @@ static void ocrdma_store_gsi_qp_cq(struct
> ocrdma_dev *dev,
> }
> }
>
> -struct ib_qp *ocrdma_create_qp(struct ib_pd *ibpd,
> - struct ib_qp_init_attr *attrs,
> - struct ib_udata *udata)
> +int ocrdma_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *attrs,
> + struct ib_udata *udata)
> {
> int status;
> + struct ib_pd *ibpd = ibqp->pd;
> struct ocrdma_pd *pd = get_ocrdma_pd(ibpd);
> - struct ocrdma_qp *qp;
> - struct ocrdma_dev *dev = get_ocrdma_dev(ibpd->device);
> + struct ocrdma_qp *qp = get_ocrdma_qp(ibqp);
> + struct ocrdma_dev *dev = get_ocrdma_dev(ibqp->device);
> struct ocrdma_create_qp_ureq ureq;
> u16 dpp_credit_lmt, dpp_offset;
>
> if (attrs->create_flags)
> - return ERR_PTR(-EOPNOTSUPP);
> + return -EOPNOTSUPP;
>
> status = ocrdma_check_qp_params(ibpd, dev, attrs, udata);
> if (status)
> @@ -1309,12 +1309,7 @@ struct ib_qp *ocrdma_create_qp(struct ib_pd
> *ibpd,
> memset(&ureq, 0, sizeof(ureq));
> if (udata) {
> if (ib_copy_from_udata(&ureq, udata, sizeof(ureq)))
> - return ERR_PTR(-EFAULT);
> - }
> - qp = kzalloc(sizeof(*qp), GFP_KERNEL);
> - if (!qp) {
> - status = -ENOMEM;
> - goto gen_err;
> + return -EFAULT;
> }
> ocrdma_set_qp_init_params(qp, pd, attrs);
> if (udata == NULL)
> @@ -1349,7 +1344,7 @@ struct ib_qp *ocrdma_create_qp(struct ib_pd
> *ibpd,
> ocrdma_store_gsi_qp_cq(dev, attrs);
> qp->ibqp.qp_num = qp->id;
> mutex_unlock(&dev->dev_lock);
> - return &qp->ibqp;
> + return 0;
>
> cpy_err:
> ocrdma_del_qpn_map(dev, qp);
> @@ -1359,10 +1354,9 @@ struct ib_qp *ocrdma_create_qp(struct ib_pd
> *ibpd,
> mutex_unlock(&dev->dev_lock);
> kfree(qp->wqe_wr_id_tbl);
> kfree(qp->rqe_wr_id_tbl);
> - kfree(qp);
> pr_err("%s(%d) error=%d\n", __func__, dev->id, status);
> gen_err:
> - return ERR_PTR(status);
> + return status;
> }
>
> int _ocrdma_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
> @@ -1731,7 +1725,6 @@ int ocrdma_destroy_qp(struct ib_qp *ibqp, struct
> ib_udata *udata)
>
> kfree(qp->wqe_wr_id_tbl);
> kfree(qp->rqe_wr_id_tbl);
> - kfree(qp);
> return 0;
> }
>
> diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.h
> b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.h
> index b1c5fad81603..b73d742a520c 100644
> --- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.h
> +++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.h
> @@ -75,9 +75,8 @@ int ocrdma_create_cq(struct ib_cq *ibcq, const struct
> ib_cq_init_attr *attr,
> int ocrdma_resize_cq(struct ib_cq *, int cqe, struct ib_udata *);
> int ocrdma_destroy_cq(struct ib_cq *ibcq, struct ib_udata *udata);
>
> -struct ib_qp *ocrdma_create_qp(struct ib_pd *,
> - struct ib_qp_init_attr *attrs,
> - struct ib_udata *);
> +int ocrdma_create_qp(struct ib_qp *qp, struct ib_qp_init_attr *attrs,
> + struct ib_udata *udata);
> int _ocrdma_modify_qp(struct ib_qp *, struct ib_qp_attr *attr,
> int attr_mask);
> int ocrdma_modify_qp(struct ib_qp *, struct ib_qp_attr *attr,
> diff --git a/drivers/infiniband/hw/qedr/main.c
> b/drivers/infiniband/hw/qedr/main.c
> index de98e0604f91..755930be01b8 100644
> --- a/drivers/infiniband/hw/qedr/main.c
> +++ b/drivers/infiniband/hw/qedr/main.c
> @@ -233,6 +233,7 @@ static const struct ib_device_ops qedr_dev_ops = {
> INIT_RDMA_OBJ_SIZE(ib_ah, qedr_ah, ibah),
> INIT_RDMA_OBJ_SIZE(ib_cq, qedr_cq, ibcq),
> INIT_RDMA_OBJ_SIZE(ib_pd, qedr_pd, ibpd),
> + INIT_RDMA_OBJ_SIZE(ib_qp, qedr_qp, ibqp),
> INIT_RDMA_OBJ_SIZE(ib_srq, qedr_srq, ibsrq),
> INIT_RDMA_OBJ_SIZE(ib_xrcd, qedr_xrcd, ibxrcd),
> INIT_RDMA_OBJ_SIZE(ib_ucontext, qedr_ucontext, ibucontext),
> diff --git a/drivers/infiniband/hw/qedr/qedr_roce_cm.c
> b/drivers/infiniband/hw/qedr/qedr_roce_cm.c
> index 13e5e6bbec99..05307c1488b8 100644
> --- a/drivers/infiniband/hw/qedr/qedr_roce_cm.c
> +++ b/drivers/infiniband/hw/qedr/qedr_roce_cm.c
> @@ -319,20 +319,19 @@ static int qedr_ll2_start(struct qedr_dev *dev,
> return rc;
> }
>
> -struct ib_qp *qedr_create_gsi_qp(struct qedr_dev *dev,
> - struct ib_qp_init_attr *attrs,
> - struct qedr_qp *qp)
> +int qedr_create_gsi_qp(struct qedr_dev *dev, struct ib_qp_init_attr *attrs,
> + struct qedr_qp *qp)
> {
> int rc;
>
> rc = qedr_check_gsi_qp_attrs(dev, attrs);
> if (rc)
> - return ERR_PTR(rc);
> + return rc;
>
> rc = qedr_ll2_start(dev, attrs, qp);
> if (rc) {
> DP_ERR(dev, "create gsi qp: failed on ll2 start. rc=%d\n", rc);
> - return ERR_PTR(rc);
> + return rc;
> }
>
> /* create QP */
> @@ -359,7 +358,7 @@ struct ib_qp *qedr_create_gsi_qp(struct qedr_dev
> *dev,
>
> DP_DEBUG(dev, QEDR_MSG_GSI, "created GSI QP %p\n", qp);
>
> - return &qp->ibqp;
> + return 0;
>
> err:
> kfree(qp->rqe_wr_id);
> @@ -368,7 +367,7 @@ struct ib_qp *qedr_create_gsi_qp(struct qedr_dev
> *dev,
> if (rc)
> DP_ERR(dev, "create gsi qp: failed destroy on create\n");
>
> - return ERR_PTR(-ENOMEM);
> + return -ENOMEM;
> }
>
> int qedr_destroy_gsi_qp(struct qedr_dev *dev)
> diff --git a/drivers/infiniband/hw/qedr/qedr_roce_cm.h
> b/drivers/infiniband/hw/qedr/qedr_roce_cm.h
> index d46dcd3f6424..f3432f035ec6 100644
> --- a/drivers/infiniband/hw/qedr/qedr_roce_cm.h
> +++ b/drivers/infiniband/hw/qedr/qedr_roce_cm.h
> @@ -50,9 +50,8 @@ int qedr_gsi_post_recv(struct ib_qp *ibqp, const struct
> ib_recv_wr *wr,
> const struct ib_recv_wr **bad_wr);
> int qedr_gsi_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
> const struct ib_send_wr **bad_wr);
> -struct ib_qp *qedr_create_gsi_qp(struct qedr_dev *dev,
> - struct ib_qp_init_attr *attrs,
> - struct qedr_qp *qp);
> +int qedr_create_gsi_qp(struct qedr_dev *dev, struct ib_qp_init_attr *attrs,
> + struct qedr_qp *qp);
> void qedr_store_gsi_qp_cq(struct qedr_dev *dev,
> struct qedr_qp *qp, struct ib_qp_init_attr *attrs);
> int qedr_destroy_gsi_qp(struct qedr_dev *dev);
> diff --git a/drivers/infiniband/hw/qedr/verbs.c
> b/drivers/infiniband/hw/qedr/verbs.c
> index fdc47ef7d861..9cf94dc768ec 100644
> --- a/drivers/infiniband/hw/qedr/verbs.c
> +++ b/drivers/infiniband/hw/qedr/verbs.c
> @@ -2239,34 +2239,30 @@ static int qedr_free_qp_resources(struct
> qedr_dev *dev, struct qedr_qp *qp,
> return 0;
> }
>
> -struct ib_qp *qedr_create_qp(struct ib_pd *ibpd,
> - struct ib_qp_init_attr *attrs,
> - struct ib_udata *udata)
> +int qedr_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *attrs,
> + struct ib_udata *udata)
> {
> struct qedr_xrcd *xrcd = NULL;
> - struct qedr_pd *pd = NULL;
> - struct qedr_dev *dev;
> - struct qedr_qp *qp;
> - struct ib_qp *ibqp;
> + struct ib_pd *ibpd = ibqp->pd;
> + struct qedr_pd *pd = get_qedr_pd(ibpd);
> + struct qedr_dev *dev = get_qedr_dev(ibqp->device);
> + struct qedr_qp *qp = get_qedr_qp(ibqp);
> int rc = 0;
>
> if (attrs->create_flags)
> - return ERR_PTR(-EOPNOTSUPP);
> + return -EOPNOTSUPP;
>
> - if (attrs->qp_type == IB_QPT_XRC_TGT) {
> + if (attrs->qp_type == IB_QPT_XRC_TGT)
> xrcd = get_qedr_xrcd(attrs->xrcd);
> - dev = get_qedr_dev(xrcd->ibxrcd.device);
> - } else {
> + else
> pd = get_qedr_pd(ibpd);
> - dev = get_qedr_dev(ibpd->device);
> - }
>
> DP_DEBUG(dev, QEDR_MSG_QP, "create qp: called from %s,
> pd=%p\n",
> udata ? "user library" : "kernel", pd);
>
> rc = qedr_check_qp_attrs(ibpd, dev, attrs, udata);
> if (rc)
> - return ERR_PTR(rc);
> + return rc;
>
> DP_DEBUG(dev, QEDR_MSG_QP,
> "create qp: called from %s, event_handler=%p, eepd=%p
> sq_cq=%p, sq_icid=%d, rq_cq=%p, rq_icid=%d\n",
> @@ -2276,20 +2272,10 @@ struct ib_qp *qedr_create_qp(struct ib_pd
> *ibpd,
> get_qedr_cq(attrs->recv_cq),
> attrs->recv_cq ? get_qedr_cq(attrs->recv_cq)->icid : 0);
>
> - qp = kzalloc(sizeof(*qp), GFP_KERNEL);
> - if (!qp) {
> - DP_ERR(dev, "create qp: failed allocating memory\n");
> - return ERR_PTR(-ENOMEM);
> - }
> -
> qedr_set_common_qp_params(dev, qp, pd, attrs);
>
> - if (attrs->qp_type == IB_QPT_GSI) {
> - ibqp = qedr_create_gsi_qp(dev, attrs, qp);
> - if (IS_ERR(ibqp))
> - kfree(qp);
> - return ibqp;
> - }
> + if (attrs->qp_type == IB_QPT_GSI)
> + return qedr_create_gsi_qp(dev, attrs, qp);
>
> if (udata || xrcd)
> rc = qedr_create_user_qp(dev, qp, ibpd, udata, attrs);
> @@ -2297,7 +2283,7 @@ struct ib_qp *qedr_create_qp(struct ib_pd *ibpd,
> rc = qedr_create_kernel_qp(dev, qp, ibpd, attrs);
>
> if (rc)
> - goto out_free_qp;
> + return rc;
>
> qp->ibqp.qp_num = qp->qp_id;
>
> @@ -2307,14 +2293,11 @@ struct ib_qp *qedr_create_qp(struct ib_pd
> *ibpd,
> goto out_free_qp_resources;
> }
>
> - return &qp->ibqp;
> + return 0;
>
> out_free_qp_resources:
> qedr_free_qp_resources(dev, qp, udata);
> -out_free_qp:
> - kfree(qp);
> -
> - return ERR_PTR(-EFAULT);
> + return -EFAULT;
> }
>
> static enum ib_qp_state qedr_get_ibqp_state(enum qed_roce_qp_state
> qp_state)
> @@ -2874,8 +2857,6 @@ int qedr_destroy_qp(struct ib_qp *ibqp, struct
> ib_udata *udata)
>
> if (rdma_protocol_iwarp(&dev->ibdev, 1))
> qedr_iw_qp_rem_ref(&qp->ibqp);
> - else
> - kfree(qp);
>
> return 0;
> }
> diff --git a/drivers/infiniband/hw/qedr/verbs.h
> b/drivers/infiniband/hw/qedr/verbs.h
> index 34ad47515861..031687dafc61 100644
> --- a/drivers/infiniband/hw/qedr/verbs.h
> +++ b/drivers/infiniband/hw/qedr/verbs.h
> @@ -56,8 +56,8 @@ int qedr_create_cq(struct ib_cq *ibcq, const struct
> ib_cq_init_attr *attr,
> int qedr_resize_cq(struct ib_cq *, int cqe, struct ib_udata *);
> int qedr_destroy_cq(struct ib_cq *ibcq, struct ib_udata *udata);
> int qedr_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags);
> -struct ib_qp *qedr_create_qp(struct ib_pd *, struct ib_qp_init_attr *attrs,
> - struct ib_udata *);
> +int qedr_create_qp(struct ib_qp *qp, struct ib_qp_init_attr *attrs,
> + struct ib_udata *udata);
> int qedr_modify_qp(struct ib_qp *, struct ib_qp_attr *attr,
> int attr_mask, struct ib_udata *udata);
> int qedr_query_qp(struct ib_qp *, struct ib_qp_attr *qp_attr,
> diff --git a/drivers/infiniband/hw/usnic/usnic_ib_main.c
> b/drivers/infiniband/hw/usnic/usnic_ib_main.c
> index c49f9e19d926..228e9a36dad0 100644
> --- a/drivers/infiniband/hw/usnic/usnic_ib_main.c
> +++ b/drivers/infiniband/hw/usnic/usnic_ib_main.c
> @@ -360,6 +360,7 @@ static const struct ib_device_ops usnic_dev_ops = {
> .reg_user_mr = usnic_ib_reg_mr,
> INIT_RDMA_OBJ_SIZE(ib_pd, usnic_ib_pd, ibpd),
> INIT_RDMA_OBJ_SIZE(ib_cq, usnic_ib_cq, ibcq),
> + INIT_RDMA_OBJ_SIZE(ib_qp, usnic_ib_qp_grp, ibqp),
> INIT_RDMA_OBJ_SIZE(ib_ucontext, usnic_ib_ucontext, ibucontext),
> };
>
> diff --git a/drivers/infiniband/hw/usnic/usnic_ib_qp_grp.c
> b/drivers/infiniband/hw/usnic/usnic_ib_qp_grp.c
> index 0cdb156e165e..3b60fa9cb58d 100644
> --- a/drivers/infiniband/hw/usnic/usnic_ib_qp_grp.c
> +++ b/drivers/infiniband/hw/usnic/usnic_ib_qp_grp.c
> @@ -665,13 +665,12 @@ static int qp_grp_id_from_flow(struct
> usnic_ib_qp_grp_flow *qp_flow,
> return 0;
> }
>
> -struct usnic_ib_qp_grp *
> -usnic_ib_qp_grp_create(struct usnic_fwd_dev *ufdev, struct usnic_ib_vf
> *vf,
> - struct usnic_ib_pd *pd,
> - struct usnic_vnic_res_spec *res_spec,
> - struct usnic_transport_spec *transport_spec)
> +int usnic_ib_qp_grp_create(struct usnic_ib_qp_grp *qp_grp,
> + struct usnic_fwd_dev *ufdev, struct usnic_ib_vf
> *vf,
> + struct usnic_ib_pd *pd,
> + struct usnic_vnic_res_spec *res_spec,
> + struct usnic_transport_spec *transport_spec)
> {
> - struct usnic_ib_qp_grp *qp_grp;
> int err;
> enum usnic_transport_type transport = transport_spec->trans_type;
> struct usnic_ib_qp_grp_flow *qp_flow;
> @@ -684,20 +683,15 @@ usnic_ib_qp_grp_create(struct usnic_fwd_dev
> *ufdev, struct usnic_ib_vf *vf,
> usnic_err("Spec does not meet minimum req for transport
> %d\n",
> transport);
> log_spec(res_spec);
> - return ERR_PTR(err);
> + return err;
> }
>
> - qp_grp = kzalloc(sizeof(*qp_grp), GFP_ATOMIC);
> - if (!qp_grp)
> - return NULL;
> -
> qp_grp->res_chunk_list = alloc_res_chunk_list(vf->vnic, res_spec,
> qp_grp);
> - if (IS_ERR_OR_NULL(qp_grp->res_chunk_list)) {
> - err = qp_grp->res_chunk_list ?
> - PTR_ERR(qp_grp->res_chunk_list) : -
> ENOMEM;
> - goto out_free_qp_grp;
> - }
> + if (IS_ERR_OR_NULL(qp_grp->res_chunk_list))
> + return qp_grp->res_chunk_list ?
> + PTR_ERR(qp_grp->res_chunk_list) :
> + -ENOMEM;
>
> err = qp_grp_and_vf_bind(vf, pd, qp_grp);
> if (err)
> @@ -724,7 +718,7 @@ usnic_ib_qp_grp_create(struct usnic_fwd_dev
> *ufdev, struct usnic_ib_vf *vf,
>
> usnic_ib_sysfs_qpn_add(qp_grp);
>
> - return qp_grp;
> + return 0;
>
> out_release_flow:
> release_and_remove_flow(qp_flow);
> @@ -732,10 +726,7 @@ usnic_ib_qp_grp_create(struct usnic_fwd_dev
> *ufdev, struct usnic_ib_vf *vf,
> qp_grp_and_vf_unbind(qp_grp);
> out_free_res:
> free_qp_grp_res(qp_grp->res_chunk_list);
> -out_free_qp_grp:
> - kfree(qp_grp);
> -
> - return ERR_PTR(err);
> + return err;
> }
>
> void usnic_ib_qp_grp_destroy(struct usnic_ib_qp_grp *qp_grp)
> @@ -748,7 +739,6 @@ void usnic_ib_qp_grp_destroy(struct
> usnic_ib_qp_grp *qp_grp)
> usnic_ib_sysfs_qpn_remove(qp_grp);
> qp_grp_and_vf_unbind(qp_grp);
> free_qp_grp_res(qp_grp->res_chunk_list);
> - kfree(qp_grp);
> }
>
> struct usnic_vnic_res_chunk*
> diff --git a/drivers/infiniband/hw/usnic/usnic_ib_qp_grp.h
> b/drivers/infiniband/hw/usnic/usnic_ib_qp_grp.h
> index a8a2314c9531..62e732be6736 100644
> --- a/drivers/infiniband/hw/usnic/usnic_ib_qp_grp.h
> +++ b/drivers/infiniband/hw/usnic/usnic_ib_qp_grp.h
> @@ -89,11 +89,11 @@ extern const struct usnic_vnic_res_spec
> min_transport_spec[USNIC_TRANSPORT_MAX];
> const char *usnic_ib_qp_grp_state_to_string(enum ib_qp_state state);
> int usnic_ib_qp_grp_dump_hdr(char *buf, int buf_sz);
> int usnic_ib_qp_grp_dump_rows(void *obj, char *buf, int buf_sz);
> -struct usnic_ib_qp_grp *
> -usnic_ib_qp_grp_create(struct usnic_fwd_dev *ufdev, struct usnic_ib_vf
> *vf,
> - struct usnic_ib_pd *pd,
> - struct usnic_vnic_res_spec *res_spec,
> - struct usnic_transport_spec *trans_spec);
> +int usnic_ib_qp_grp_create(struct usnic_ib_qp_grp *qp,
> + struct usnic_fwd_dev *ufdev, struct usnic_ib_vf
> *vf,
> + struct usnic_ib_pd *pd,
> + struct usnic_vnic_res_spec *res_spec,
> + struct usnic_transport_spec *trans_spec);
> void usnic_ib_qp_grp_destroy(struct usnic_ib_qp_grp *qp_grp);
> int usnic_ib_qp_grp_modify(struct usnic_ib_qp_grp *qp_grp,
> enum ib_qp_state new_state,
> diff --git a/drivers/infiniband/hw/usnic/usnic_ib_verbs.c
> b/drivers/infiniband/hw/usnic/usnic_ib_verbs.c
> index 57d210ca855a..06a4e9d4545d 100644
> --- a/drivers/infiniband/hw/usnic/usnic_ib_verbs.c
> +++ b/drivers/infiniband/hw/usnic/usnic_ib_verbs.c
> @@ -168,30 +168,31 @@ static int usnic_ib_fill_create_qp_resp(struct
> usnic_ib_qp_grp *qp_grp,
> return 0;
> }
>
> -static struct usnic_ib_qp_grp*
> -find_free_vf_and_create_qp_grp(struct usnic_ib_dev *us_ibdev,
> - struct usnic_ib_pd *pd,
> - struct usnic_transport_spec *trans_spec,
> - struct usnic_vnic_res_spec *res_spec)
> +static int
> +find_free_vf_and_create_qp_grp(struct ib_qp *qp,
> + struct usnic_transport_spec *trans_spec,
> + struct usnic_vnic_res_spec *res_spec)
> {
> + struct usnic_ib_dev *us_ibdev = to_usdev(qp->device);
> + struct usnic_ib_pd *pd = to_upd(qp->pd);
> struct usnic_ib_vf *vf;
> struct usnic_vnic *vnic;
> - struct usnic_ib_qp_grp *qp_grp;
> + struct usnic_ib_qp_grp *qp_grp = to_uqp_grp(qp);
> struct device *dev, **dev_list;
> - int i;
> + int i, ret;
>
> BUG_ON(!mutex_is_locked(&us_ibdev->usdev_lock));
>
> if (list_empty(&us_ibdev->vf_dev_list)) {
> usnic_info("No vfs to allocate\n");
> - return NULL;
> + return -ENOMEM;
> }
>
> if (usnic_ib_share_vf) {
> /* Try to find resouces on a used vf which is in pd */
> dev_list = usnic_uiom_get_dev_list(pd->umem_pd);
> if (IS_ERR(dev_list))
> - return ERR_CAST(dev_list);
> + return PTR_ERR(dev_list);
> for (i = 0; dev_list[i]; i++) {
> dev = dev_list[i];
> vf = dev_get_drvdata(dev);
> @@ -202,10 +203,10 @@ find_free_vf_and_create_qp_grp(struct
> usnic_ib_dev *us_ibdev,
> dev_name(&us_ibdev-
> >ib_dev.dev),
>
> pci_name(usnic_vnic_get_pdev(
>
> vnic)));
> - qp_grp = usnic_ib_qp_grp_create(us_ibdev-
> >ufdev,
> - vf, pd,
> - res_spec,
> - trans_spec);
> + ret = usnic_ib_qp_grp_create(qp_grp,
> + us_ibdev->ufdev,
> + vf, pd, res_spec,
> + trans_spec);
>
> spin_unlock(&vf->lock);
> goto qp_grp_check;
> @@ -223,9 +224,9 @@ find_free_vf_and_create_qp_grp(struct
> usnic_ib_dev *us_ibdev,
> vnic = vf->vnic;
> if (vf->qp_grp_ref_cnt == 0 &&
> usnic_vnic_check_room(vnic, res_spec) == 0) {
> - qp_grp = usnic_ib_qp_grp_create(us_ibdev->ufdev,
> vf,
> - pd, res_spec,
> - trans_spec);
> + ret = usnic_ib_qp_grp_create(qp_grp, us_ibdev-
> >ufdev,
> + vf, pd, res_spec,
> + trans_spec);
>
> spin_unlock(&vf->lock);
> goto qp_grp_check;
> @@ -235,16 +236,15 @@ find_free_vf_and_create_qp_grp(struct
> usnic_ib_dev *us_ibdev,
>
> usnic_info("No free qp grp found on %s\n",
> dev_name(&us_ibdev->ib_dev.dev));
> - return ERR_PTR(-ENOMEM);
> + return -ENOMEM;
>
> qp_grp_check:
> - if (IS_ERR_OR_NULL(qp_grp)) {
> + if (ret) {
> usnic_err("Failed to allocate qp_grp\n");
> if (usnic_ib_share_vf)
> usnic_uiom_free_dev_list(dev_list);
> - return ERR_PTR(qp_grp ? PTR_ERR(qp_grp) : -ENOMEM);
> }
> - return qp_grp;
> + return ret;
> }
>
> static void qp_grp_destroy(struct usnic_ib_qp_grp *qp_grp)
> @@ -458,13 +458,12 @@ int usnic_ib_dealloc_pd(struct ib_pd *pd, struct
> ib_udata *udata)
> return 0;
> }
>
> -struct ib_qp *usnic_ib_create_qp(struct ib_pd *pd,
> - struct ib_qp_init_attr *init_attr,
> - struct ib_udata *udata)
> +int usnic_ib_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *init_attr,
> + struct ib_udata *udata)
> {
> int err;
> struct usnic_ib_dev *us_ibdev;
> - struct usnic_ib_qp_grp *qp_grp;
> + struct usnic_ib_qp_grp *qp_grp = to_uqp_grp(ibqp);
> struct usnic_ib_ucontext *ucontext = rdma_udata_to_drv_context(
> udata, struct usnic_ib_ucontext, ibucontext);
> int cq_cnt;
> @@ -474,29 +473,29 @@ struct ib_qp *usnic_ib_create_qp(struct ib_pd *pd,
>
> usnic_dbg("\n");
>
> - us_ibdev = to_usdev(pd->device);
> + us_ibdev = to_usdev(ibqp->device);
>
> if (init_attr->create_flags)
> - return ERR_PTR(-EOPNOTSUPP);
> + return -EOPNOTSUPP;
>
> err = ib_copy_from_udata(&cmd, udata, sizeof(cmd));
> if (err) {
> usnic_err("%s: cannot copy udata for create_qp\n",
> dev_name(&us_ibdev->ib_dev.dev));
> - return ERR_PTR(-EINVAL);
> + return -EINVAL;
> }
>
> err = create_qp_validate_user_data(cmd);
> if (err) {
> usnic_err("%s: Failed to validate user data\n",
> dev_name(&us_ibdev->ib_dev.dev));
> - return ERR_PTR(-EINVAL);
> + return -EINVAL;
> }
>
> if (init_attr->qp_type != IB_QPT_UD) {
> usnic_err("%s asked to make a non-UD QP: %d\n",
> dev_name(&us_ibdev->ib_dev.dev), init_attr-
> >qp_type);
> - return ERR_PTR(-EOPNOTSUPP);
> + return -EOPNOTSUPP;
> }
>
> trans_spec = cmd.spec;
> @@ -504,13 +503,9 @@ struct ib_qp *usnic_ib_create_qp(struct ib_pd *pd,
> cq_cnt = (init_attr->send_cq == init_attr->recv_cq) ? 1 : 2;
> res_spec = min_transport_spec[trans_spec.trans_type];
> usnic_vnic_res_spec_update(&res_spec,
> USNIC_VNIC_RES_TYPE_CQ, cq_cnt);
> - qp_grp = find_free_vf_and_create_qp_grp(us_ibdev, to_upd(pd),
> - &trans_spec,
> - &res_spec);
> - if (IS_ERR_OR_NULL(qp_grp)) {
> - err = qp_grp ? PTR_ERR(qp_grp) : -ENOMEM;
> + err = find_free_vf_and_create_qp_grp(ibqp, &trans_spec,
> &res_spec);
> + if (err)
> goto out_release_mutex;
> - }
>
> err = usnic_ib_fill_create_qp_resp(qp_grp, udata);
> if (err) {
> @@ -522,13 +517,13 @@ struct ib_qp *usnic_ib_create_qp(struct ib_pd *pd,
> list_add_tail(&qp_grp->link, &ucontext->qp_grp_list);
> usnic_ib_log_vf(qp_grp->vf);
> mutex_unlock(&us_ibdev->usdev_lock);
> - return &qp_grp->ibqp;
> + return 0;
>
> out_release_qp_grp:
> qp_grp_destroy(qp_grp);
> out_release_mutex:
> mutex_unlock(&us_ibdev->usdev_lock);
> - return ERR_PTR(err);
> + return err;
> }
>
> int usnic_ib_destroy_qp(struct ib_qp *qp, struct ib_udata *udata)
> diff --git a/drivers/infiniband/hw/usnic/usnic_ib_verbs.h
> b/drivers/infiniband/hw/usnic/usnic_ib_verbs.h
> index 6b82d0f2d184..6ca9ee0dddbe 100644
> --- a/drivers/infiniband/hw/usnic/usnic_ib_verbs.h
> +++ b/drivers/infiniband/hw/usnic/usnic_ib_verbs.h
> @@ -50,9 +50,8 @@ int usnic_ib_query_gid(struct ib_device *ibdev, u32
> port, int index,
> union ib_gid *gid);
> int usnic_ib_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata);
> int usnic_ib_dealloc_pd(struct ib_pd *pd, struct ib_udata *udata);
> -struct ib_qp *usnic_ib_create_qp(struct ib_pd *pd,
> - struct ib_qp_init_attr *init_attr,
> - struct ib_udata *udata);
> +int usnic_ib_create_qp(struct ib_qp *qp, struct ib_qp_init_attr *init_attr,
> + struct ib_udata *udata);
> int usnic_ib_destroy_qp(struct ib_qp *qp, struct ib_udata *udata);
> int usnic_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
> int attr_mask, struct ib_udata *udata);
> diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c
> b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c
> index 8ed8bc24c69f..b39175837d58 100644
> --- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c
> +++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c
> @@ -185,6 +185,7 @@ static const struct ib_device_ops pvrdma_dev_ops = {
> INIT_RDMA_OBJ_SIZE(ib_ah, pvrdma_ah, ibah),
> INIT_RDMA_OBJ_SIZE(ib_cq, pvrdma_cq, ibcq),
> INIT_RDMA_OBJ_SIZE(ib_pd, pvrdma_pd, ibpd),
> + INIT_RDMA_OBJ_SIZE(ib_qp, pvrdma_qp, ibqp),
> INIT_RDMA_OBJ_SIZE(ib_ucontext, pvrdma_ucontext, ibucontext),
> };
>
> diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c
> b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c
> index 67769b715126..f83cd4a9d992 100644
> --- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c
> +++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_qp.c
> @@ -182,18 +182,17 @@ static int pvrdma_set_sq_size(struct pvrdma_dev
> *dev, struct ib_qp_cap *req_cap,
>
> /**
> * pvrdma_create_qp - create queue pair
> - * @pd: protection domain
> + * @ibqp: queue pair
> * @init_attr: queue pair attributes
> * @udata: user data
> *
> - * @return: the ib_qp pointer on success, otherwise returns an errno.
> + * @return: the 0 on success, otherwise returns an errno.
> */
> -struct ib_qp *pvrdma_create_qp(struct ib_pd *pd,
> - struct ib_qp_init_attr *init_attr,
> - struct ib_udata *udata)
> +int pvrdma_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *init_attr,
> + struct ib_udata *udata)
> {
> - struct pvrdma_qp *qp = NULL;
> - struct pvrdma_dev *dev = to_vdev(pd->device);
> + struct pvrdma_qp *qp = to_vqp(ibqp);
> + struct pvrdma_dev *dev = to_vdev(ibqp->device);
> union pvrdma_cmd_req req;
> union pvrdma_cmd_resp rsp;
> struct pvrdma_cmd_create_qp *cmd = &req.create_qp;
> @@ -209,7 +208,7 @@ struct ib_qp *pvrdma_create_qp(struct ib_pd *pd,
> dev_warn(&dev->pdev->dev,
> "invalid create queuepair flags %#x\n",
> init_attr->create_flags);
> - return ERR_PTR(-EOPNOTSUPP);
> + return -EOPNOTSUPP;
> }
>
> if (init_attr->qp_type != IB_QPT_RC &&
> @@ -217,22 +216,22 @@ struct ib_qp *pvrdma_create_qp(struct ib_pd *pd,
> init_attr->qp_type != IB_QPT_GSI) {
> dev_warn(&dev->pdev->dev, "queuepair type %d not
> supported\n",
> init_attr->qp_type);
> - return ERR_PTR(-EOPNOTSUPP);
> + return -EOPNOTSUPP;
> }
>
> if (is_srq && !dev->dsr->caps.max_srq) {
> dev_warn(&dev->pdev->dev,
> "SRQs not supported by device\n");
> - return ERR_PTR(-EINVAL);
> + return -EINVAL;
> }
>
> if (!atomic_add_unless(&dev->num_qps, 1, dev->dsr-
> >caps.max_qp))
> - return ERR_PTR(-ENOMEM);
> + return -ENOMEM;
>
> switch (init_attr->qp_type) {
> case IB_QPT_GSI:
> if (init_attr->port_num == 0 ||
> - init_attr->port_num > pd->device->phys_port_cnt) {
> + init_attr->port_num > ibqp->device->phys_port_cnt) {
> dev_warn(&dev->pdev->dev, "invalid queuepair
> attrs\n");
> ret = -EINVAL;
> goto err_qp;
> @@ -240,12 +239,6 @@ struct ib_qp *pvrdma_create_qp(struct ib_pd *pd,
> fallthrough;
> case IB_QPT_RC:
> case IB_QPT_UD:
> - qp = kzalloc(sizeof(*qp), GFP_KERNEL);
> - if (!qp) {
> - ret = -ENOMEM;
> - goto err_qp;
> - }
> -
> spin_lock_init(&qp->sq.lock);
> spin_lock_init(&qp->rq.lock);
> mutex_init(&qp->mutex);
> @@ -275,9 +268,9 @@ struct ib_qp *pvrdma_create_qp(struct ib_pd *pd,
>
> if (!is_srq) {
> /* set qp->sq.wqe_cnt, shift, buf_size.. */
> - qp->rumem =
> - ib_umem_get(pd->device,
> ucmd.rbuf_addr,
> - ucmd.rbuf_size, 0);
> + qp->rumem = ib_umem_get(ibqp->device,
> + ucmd.rbuf_addr,
> + ucmd.rbuf_size, 0);
> if (IS_ERR(qp->rumem)) {
> ret = PTR_ERR(qp->rumem);
> goto err_qp;
> @@ -288,7 +281,7 @@ struct ib_qp *pvrdma_create_qp(struct ib_pd *pd,
> qp->srq = to_vsrq(init_attr->srq);
> }
>
> - qp->sumem = ib_umem_get(pd->device,
> ucmd.sbuf_addr,
> + qp->sumem = ib_umem_get(ibqp->device,
> ucmd.sbuf_addr,
> ucmd.sbuf_size, 0);
> if (IS_ERR(qp->sumem)) {
> if (!is_srq)
> @@ -306,12 +299,12 @@ struct ib_qp *pvrdma_create_qp(struct ib_pd *pd,
> qp->npages_recv = 0;
> qp->npages = qp->npages_send + qp->npages_recv;
> } else {
> - ret = pvrdma_set_sq_size(to_vdev(pd->device),
> + ret = pvrdma_set_sq_size(to_vdev(ibqp->device),
> &init_attr->cap, qp);
> if (ret)
> goto err_qp;
>
> - ret = pvrdma_set_rq_size(to_vdev(pd->device),
> + ret = pvrdma_set_rq_size(to_vdev(ibqp->device),
> &init_attr->cap, qp);
> if (ret)
> goto err_qp;
> @@ -362,7 +355,7 @@ struct ib_qp *pvrdma_create_qp(struct ib_pd *pd,
>
> memset(cmd, 0, sizeof(*cmd));
> cmd->hdr.cmd = PVRDMA_CMD_CREATE_QP;
> - cmd->pd_handle = to_vpd(pd)->pd_handle;
> + cmd->pd_handle = to_vpd(ibqp->pd)->pd_handle;
> cmd->send_cq_handle = to_vcq(init_attr->send_cq)->cq_handle;
> cmd->recv_cq_handle = to_vcq(init_attr->recv_cq)->cq_handle;
> if (is_srq)
> @@ -418,11 +411,11 @@ struct ib_qp *pvrdma_create_qp(struct ib_pd *pd,
> dev_warn(&dev->pdev->dev,
> "failed to copy back udata\n");
> __pvrdma_destroy_qp(dev, qp);
> - return ERR_PTR(-EINVAL);
> + return -EINVAL;
> }
> }
>
> - return &qp->ibqp;
> + return 0;
>
> err_pdir:
> pvrdma_page_dir_cleanup(dev, &qp->pdir);
> @@ -430,10 +423,8 @@ struct ib_qp *pvrdma_create_qp(struct ib_pd *pd,
> ib_umem_release(qp->rumem);
> ib_umem_release(qp->sumem);
> err_qp:
> - kfree(qp);
> atomic_dec(&dev->num_qps);
> -
> - return ERR_PTR(ret);
> + return ret;
> }
>
> static void _pvrdma_free_qp(struct pvrdma_qp *qp)
> @@ -454,8 +445,6 @@ static void _pvrdma_free_qp(struct pvrdma_qp *qp)
>
> pvrdma_page_dir_cleanup(dev, &qp->pdir);
>
> - kfree(qp);
> -
> atomic_dec(&dev->num_qps);
> }
>
> diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h
> b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h
> index 544b94d97c3a..78807b23d831 100644
> --- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h
> +++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h
> @@ -390,9 +390,8 @@ int pvrdma_modify_srq(struct ib_srq *ibsrq, struct
> ib_srq_attr *attr,
> int pvrdma_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
> int pvrdma_destroy_srq(struct ib_srq *srq, struct ib_udata *udata);
>
> -struct ib_qp *pvrdma_create_qp(struct ib_pd *pd,
> - struct ib_qp_init_attr *init_attr,
> - struct ib_udata *udata);
> +int pvrdma_create_qp(struct ib_qp *qp, struct ib_qp_init_attr *init_attr,
> + struct ib_udata *udata);
> int pvrdma_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
> int attr_mask, struct ib_udata *udata);
> int pvrdma_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr,
> diff --git a/drivers/infiniband/sw/rdmavt/qp.c
> b/drivers/infiniband/sw/rdmavt/qp.c
> index 14900860985c..da2d94a5a9c2 100644
> --- a/drivers/infiniband/sw/rdmavt/qp.c
> +++ b/drivers/infiniband/sw/rdmavt/qp.c
> @@ -1058,7 +1058,7 @@ static int alloc_ud_wq_attr(struct rvt_qp *qp, int
> node)
>
> /**
> * rvt_create_qp - create a queue pair for a device
> - * @ibpd: the protection domain who's device we create the queue pair for
> + * @ibqp: the queue pair
> * @init_attr: the attributes of the queue pair
> * @udata: user data for libibverbs.so
> *
> @@ -1066,47 +1066,45 @@ static int alloc_ud_wq_attr(struct rvt_qp *qp, int
> node)
> * unique idea of what queue pair numbers mean. For instance there is a
> reserved
> * range for PSM.
> *
> - * Return: the queue pair on success, otherwise returns an errno.
> + * Return: 0 on success, otherwise returns an errno.
> *
> * Called by the ib_create_qp() core verbs function.
> */
> -struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
> - struct ib_qp_init_attr *init_attr,
> - struct ib_udata *udata)
> +int rvt_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *init_attr,
> + struct ib_udata *udata)
> {
> - struct rvt_qp *qp;
> - int err;
> + struct rvt_qp *qp = ibqp_to_rvtqp(ibqp);
> + int ret = -ENOMEM;
> struct rvt_swqe *swq = NULL;
> size_t sz;
> size_t sg_list_sz = 0;
> - struct ib_qp *ret = ERR_PTR(-ENOMEM);
> - struct rvt_dev_info *rdi = ib_to_rvt(ibpd->device);
> + struct rvt_dev_info *rdi = ib_to_rvt(ibqp->device);
> void *priv = NULL;
> size_t sqsize;
> u8 exclude_prefix = 0;
>
> if (!rdi)
> - return ERR_PTR(-EINVAL);
> + return -EINVAL;
>
> if (init_attr->create_flags & ~IB_QP_CREATE_NETDEV_USE)
> - return ERR_PTR(-EOPNOTSUPP);
> + return -EOPNOTSUPP;
>
> if (init_attr->cap.max_send_sge > rdi->dparms.props.max_send_sge
> ||
> init_attr->cap.max_send_wr > rdi->dparms.props.max_qp_wr)
> - return ERR_PTR(-EINVAL);
> + return -EINVAL;
>
> /* Check receive queue parameters if no SRQ is specified. */
> if (!init_attr->srq) {
> if (init_attr->cap.max_recv_sge >
> rdi->dparms.props.max_recv_sge ||
> init_attr->cap.max_recv_wr > rdi-
> >dparms.props.max_qp_wr)
> - return ERR_PTR(-EINVAL);
> + return -EINVAL;
>
> if (init_attr->cap.max_send_sge +
> init_attr->cap.max_send_wr +
> init_attr->cap.max_recv_sge +
> init_attr->cap.max_recv_wr == 0)
> - return ERR_PTR(-EINVAL);
> + return -EINVAL;
> }
> sqsize =
> init_attr->cap.max_send_wr + 1 +
> @@ -1115,8 +1113,8 @@ struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
> case IB_QPT_SMI:
> case IB_QPT_GSI:
> if (init_attr->port_num == 0 ||
> - init_attr->port_num > ibpd->device->phys_port_cnt)
> - return ERR_PTR(-EINVAL);
> + init_attr->port_num > ibqp->device->phys_port_cnt)
> + return -EINVAL;
> fallthrough;
> case IB_QPT_UC:
> case IB_QPT_RC:
> @@ -1124,7 +1122,7 @@ struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
> sz = struct_size(swq, sg_list, init_attr->cap.max_send_sge);
> swq = vzalloc_node(array_size(sz, sqsize), rdi-
> >dparms.node);
> if (!swq)
> - return ERR_PTR(-ENOMEM);
> + return -ENOMEM;
>
> if (init_attr->srq) {
> struct rvt_srq *srq = ibsrq_to_rvtsrq(init_attr->srq);
> @@ -1135,9 +1133,6 @@ struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
> } else if (init_attr->cap.max_recv_sge > 1)
> sg_list_sz = sizeof(*qp->r_sg_list) *
> (init_attr->cap.max_recv_sge - 1);
> - qp = kzalloc_node(sizeof(*qp), GFP_KERNEL, rdi-
> >dparms.node);
> - if (!qp)
> - goto bail_swq;
> qp->r_sg_list =
> kzalloc_node(sg_list_sz, GFP_KERNEL, rdi-
> >dparms.node);
> if (!qp->r_sg_list)
> @@ -1166,7 +1161,7 @@ struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
> */
> priv = rdi->driver_f.qp_priv_alloc(rdi, qp);
> if (IS_ERR(priv)) {
> - ret = priv;
> + ret = PTR_ERR(priv);
> goto bail_qp;
> }
> qp->priv = priv;
> @@ -1180,12 +1175,10 @@ struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
> qp->r_rq.max_sge = init_attr->cap.max_recv_sge;
> sz = (sizeof(struct ib_sge) * qp->r_rq.max_sge) +
> sizeof(struct rvt_rwqe);
> - err = rvt_alloc_rq(&qp->r_rq, qp->r_rq.size * sz,
> + ret = rvt_alloc_rq(&qp->r_rq, qp->r_rq.size * sz,
> rdi->dparms.node, udata);
> - if (err) {
> - ret = ERR_PTR(err);
> + if (ret)
> goto bail_driver_priv;
> - }
> }
>
> /*
> @@ -1206,40 +1199,35 @@ struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
> qp->s_max_sge = init_attr->cap.max_send_sge;
> if (init_attr->sq_sig_type == IB_SIGNAL_REQ_WR)
> qp->s_flags = RVT_S_SIGNAL_REQ_WR;
> - err = alloc_ud_wq_attr(qp, rdi->dparms.node);
> - if (err) {
> - ret = (ERR_PTR(err));
> + ret = alloc_ud_wq_attr(qp, rdi->dparms.node);
> + if (ret)
> goto bail_rq_rvt;
> - }
>
> if (init_attr->create_flags & IB_QP_CREATE_NETDEV_USE)
> exclude_prefix = RVT_AIP_QP_PREFIX;
>
> - err = alloc_qpn(rdi, &rdi->qp_dev->qpn_table,
> + ret = alloc_qpn(rdi, &rdi->qp_dev->qpn_table,
> init_attr->qp_type,
> init_attr->port_num,
> exclude_prefix);
> - if (err < 0) {
> - ret = ERR_PTR(err);
> + if (ret < 0)
> goto bail_rq_wq;
> - }
> - qp->ibqp.qp_num = err;
> +
> + qp->ibqp.qp_num = ret;
> if (init_attr->create_flags & IB_QP_CREATE_NETDEV_USE)
> qp->ibqp.qp_num |= RVT_AIP_QP_BASE;
> qp->port_num = init_attr->port_num;
> rvt_init_qp(rdi, qp, init_attr->qp_type);
> if (rdi->driver_f.qp_priv_init) {
> - err = rdi->driver_f.qp_priv_init(rdi, qp, init_attr);
> - if (err) {
> - ret = ERR_PTR(err);
> + ret = rdi->driver_f.qp_priv_init(rdi, qp, init_attr);
> + if (ret)
> goto bail_rq_wq;
> - }
> }
> break;
>
> default:
> /* Don't support raw QPs */
> - return ERR_PTR(-EOPNOTSUPP);
> + return -EOPNOTSUPP;
> }
>
> init_attr->cap.max_inline_data = 0;
> @@ -1252,28 +1240,24 @@ struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
> if (!qp->r_rq.wq) {
> __u64 offset = 0;
>
> - err = ib_copy_to_udata(udata, &offset,
> + ret = ib_copy_to_udata(udata, &offset,
> sizeof(offset));
> - if (err) {
> - ret = ERR_PTR(err);
> + if (ret)
> goto bail_qpn;
> - }
> } else {
> u32 s = sizeof(struct rvt_rwq) + qp->r_rq.size * sz;
>
> qp->ip = rvt_create_mmap_info(rdi, s, udata,
> qp->r_rq.wq);
> if (IS_ERR(qp->ip)) {
> - ret = ERR_CAST(qp->ip);
> + ret = PTR_ERR(qp->ip);
> goto bail_qpn;
> }
>
> - err = ib_copy_to_udata(udata, &qp->ip->offset,
> + ret = ib_copy_to_udata(udata, &qp->ip->offset,
> sizeof(qp->ip->offset));
> - if (err) {
> - ret = ERR_PTR(err);
> + if (ret)
> goto bail_ip;
> - }
> }
> qp->pid = current->pid;
> }
> @@ -1281,7 +1265,7 @@ struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
> spin_lock(&rdi->n_qps_lock);
> if (rdi->n_qps_allocated == rdi->dparms.props.max_qp) {
> spin_unlock(&rdi->n_qps_lock);
> - ret = ERR_PTR(-ENOMEM);
> + ret = ENOMEM;
> goto bail_ip;
> }
>
> @@ -1307,9 +1291,7 @@ struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
> spin_unlock_irq(&rdi->pending_lock);
> }
>
> - ret = &qp->ibqp;
> -
> - return ret;
> + return 0;
>
> bail_ip:
> if (qp->ip)
> @@ -1330,11 +1312,7 @@ struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
> bail_qp:
> kfree(qp->s_ack_queue);
> kfree(qp->r_sg_list);
> - kfree(qp);
> -
> -bail_swq:
> vfree(swq);
> -
> return ret;
> }
>
> @@ -1769,7 +1747,6 @@ int rvt_destroy_qp(struct ib_qp *ibqp, struct
> ib_udata *udata)
> rdma_destroy_ah_attr(&qp->alt_ah_attr);
> free_ud_wq_attr(qp);
> vfree(qp->s_wq);
> - kfree(qp);
> return 0;
> }
>
> diff --git a/drivers/infiniband/sw/rdmavt/qp.h
> b/drivers/infiniband/sw/rdmavt/qp.h
> index 2cdba1283bf6..bceb77c28c71 100644
> --- a/drivers/infiniband/sw/rdmavt/qp.h
> +++ b/drivers/infiniband/sw/rdmavt/qp.h
> @@ -52,9 +52,8 @@
>
> int rvt_driver_qp_init(struct rvt_dev_info *rdi);
> void rvt_qp_exit(struct rvt_dev_info *rdi);
> -struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
> - struct ib_qp_init_attr *init_attr,
> - struct ib_udata *udata);
> +int rvt_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *init_attr,
> + struct ib_udata *udata);
> int rvt_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
> int attr_mask, struct ib_udata *udata);
> int rvt_destroy_qp(struct ib_qp *ibqp, struct ib_udata *udata);
> diff --git a/drivers/infiniband/sw/rdmavt/vt.c
> b/drivers/infiniband/sw/rdmavt/vt.c
> index ac17209816cd..d4526f38427e 100644
> --- a/drivers/infiniband/sw/rdmavt/vt.c
> +++ b/drivers/infiniband/sw/rdmavt/vt.c
> @@ -131,6 +131,13 @@ static int rvt_query_device(struct ib_device *ibdev,
> return 0;
> }
>
> +static int rvt_get_numa_node(struct ib_device *ibdev)
> +{
> + struct rvt_dev_info *rdi = ib_to_rvt(ibdev);
> +
> + return rdi->dparms.node;
> +}
> +
> static int rvt_modify_device(struct ib_device *device,
> int device_modify_mask,
> struct ib_device_modify *device_modify)
> @@ -380,6 +387,7 @@ static const struct ib_device_ops rvt_dev_ops = {
> .destroy_srq = rvt_destroy_srq,
> .detach_mcast = rvt_detach_mcast,
> .get_dma_mr = rvt_get_dma_mr,
> + .get_numa_node = rvt_get_numa_node,
> .get_port_immutable = rvt_get_port_immutable,
> .map_mr_sg = rvt_map_mr_sg,
> .mmap = rvt_mmap,
> @@ -406,6 +414,7 @@ static const struct ib_device_ops rvt_dev_ops = {
> INIT_RDMA_OBJ_SIZE(ib_ah, rvt_ah, ibah),
> INIT_RDMA_OBJ_SIZE(ib_cq, rvt_cq, ibcq),
> INIT_RDMA_OBJ_SIZE(ib_pd, rvt_pd, ibpd),
> + INIT_RDMA_OBJ_SIZE(ib_qp, rvt_qp, ibqp),
> INIT_RDMA_OBJ_SIZE(ib_srq, rvt_srq, ibsrq),
> INIT_RDMA_OBJ_SIZE(ib_ucontext, rvt_ucontext, ibucontext),
> };
> diff --git a/drivers/infiniband/sw/rxe/rxe_pool.c
> b/drivers/infiniband/sw/rxe/rxe_pool.c
> index 0b8e7c6255a2..ffa8420b4765 100644
> --- a/drivers/infiniband/sw/rxe/rxe_pool.c
> +++ b/drivers/infiniband/sw/rxe/rxe_pool.c
> @@ -41,7 +41,7 @@ struct rxe_type_info rxe_type_info[RXE_NUM_TYPES]
> = {
> .size = sizeof(struct rxe_qp),
> .elem_offset = offsetof(struct rxe_qp, pelem),
> .cleanup = rxe_qp_cleanup,
> - .flags = RXE_POOL_INDEX,
> + .flags = RXE_POOL_INDEX |
> RXE_POOL_NO_ALLOC,
> .min_index = RXE_MIN_QP_INDEX,
> .max_index = RXE_MAX_QP_INDEX,
> },
> diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.c
> b/drivers/infiniband/sw/rxe/rxe_verbs.c
> index f7b1a1f64c13..267b5a9c345d 100644
> --- a/drivers/infiniband/sw/rxe/rxe_verbs.c
> +++ b/drivers/infiniband/sw/rxe/rxe_verbs.c
> @@ -391,59 +391,52 @@ static int rxe_post_srq_recv(struct ib_srq *ibsrq,
> const struct ib_recv_wr *wr,
> return err;
> }
>
> -static struct ib_qp *rxe_create_qp(struct ib_pd *ibpd,
> - struct ib_qp_init_attr *init,
> - struct ib_udata *udata)
> +static int rxe_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *init,
> + struct ib_udata *udata)
> {
> int err;
> - struct rxe_dev *rxe = to_rdev(ibpd->device);
> - struct rxe_pd *pd = to_rpd(ibpd);
> - struct rxe_qp *qp;
> + struct rxe_dev *rxe = to_rdev(ibqp->device);
> + struct rxe_pd *pd = to_rpd(ibqp->pd);
> + struct rxe_qp *qp = to_rqp(ibqp);
> struct rxe_create_qp_resp __user *uresp = NULL;
>
> if (udata) {
> if (udata->outlen < sizeof(*uresp))
> - return ERR_PTR(-EINVAL);
> + return -EINVAL;
> uresp = udata->outbuf;
> }
>
> if (init->create_flags)
> - return ERR_PTR(-EOPNOTSUPP);
> + return -EOPNOTSUPP;
>
> err = rxe_qp_chk_init(rxe, init);
> if (err)
> - goto err1;
> -
> - qp = rxe_alloc(&rxe->qp_pool);
> - if (!qp) {
> - err = -ENOMEM;
> - goto err1;
> - }
> + return err;
>
> if (udata) {
> - if (udata->inlen) {
> - err = -EINVAL;
> - goto err2;
> - }
> + if (udata->inlen)
> + return -EINVAL;
> +
> qp->is_user = true;
> } else {
> qp->is_user = false;
> }
>
> - rxe_add_index(qp);
> + err = rxe_add_to_pool(&rxe->qp_pool, qp);
> + if (err)
> + return err;
>
> - err = rxe_qp_from_init(rxe, qp, pd, init, uresp, ibpd, udata);
> + rxe_add_index(qp);
> + err = rxe_qp_from_init(rxe, qp, pd, init, uresp, ibqp->pd, udata);
> if (err)
> - goto err3;
> + goto qp_init;
>
> - return &qp->ibqp;
> + return 0;
>
> -err3:
> +qp_init:
> rxe_drop_index(qp);
> -err2:
> rxe_drop_ref(qp);
> -err1:
> - return ERR_PTR(err);
> + return err;
> }
>
> static int rxe_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
> @@ -1145,6 +1138,7 @@ static const struct ib_device_ops rxe_dev_ops = {
> INIT_RDMA_OBJ_SIZE(ib_ah, rxe_ah, ibah),
> INIT_RDMA_OBJ_SIZE(ib_cq, rxe_cq, ibcq),
> INIT_RDMA_OBJ_SIZE(ib_pd, rxe_pd, ibpd),
> + INIT_RDMA_OBJ_SIZE(ib_qp, rxe_qp, ibqp),
> INIT_RDMA_OBJ_SIZE(ib_srq, rxe_srq, ibsrq),
> INIT_RDMA_OBJ_SIZE(ib_ucontext, rxe_ucontext, ibuc),
> INIT_RDMA_OBJ_SIZE(ib_mw, rxe_mw, ibmw),
> diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.h
> b/drivers/infiniband/sw/rxe/rxe_verbs.h
> index 959a3260fcab..ac2a2148027f 100644
> --- a/drivers/infiniband/sw/rxe/rxe_verbs.h
> +++ b/drivers/infiniband/sw/rxe/rxe_verbs.h
> @@ -210,8 +210,8 @@ struct rxe_resp_info {
> };
>
> struct rxe_qp {
> - struct rxe_pool_entry pelem;
> struct ib_qp ibqp;
> + struct rxe_pool_entry pelem;
> struct ib_qp_attr attr;
> unsigned int valid;
> unsigned int mtu;
> diff --git a/drivers/infiniband/sw/siw/siw_main.c
> b/drivers/infiniband/sw/siw/siw_main.c
> index cf55326f2ab4..9093e6a80b26 100644
> --- a/drivers/infiniband/sw/siw/siw_main.c
> +++ b/drivers/infiniband/sw/siw/siw_main.c
> @@ -297,6 +297,7 @@ static const struct ib_device_ops siw_device_ops = {
>
> INIT_RDMA_OBJ_SIZE(ib_cq, siw_cq, base_cq),
> INIT_RDMA_OBJ_SIZE(ib_pd, siw_pd, base_pd),
> + INIT_RDMA_OBJ_SIZE(ib_qp, siw_qp, base_qp),
> INIT_RDMA_OBJ_SIZE(ib_srq, siw_srq, base_srq),
> INIT_RDMA_OBJ_SIZE(ib_ucontext, siw_ucontext, base_ucontext),
> };
> diff --git a/drivers/infiniband/sw/siw/siw_qp.c
> b/drivers/infiniband/sw/siw/siw_qp.c
> index ddb2e66f9f13..7e01f2438afc 100644
> --- a/drivers/infiniband/sw/siw/siw_qp.c
> +++ b/drivers/infiniband/sw/siw/siw_qp.c
> @@ -1344,6 +1344,4 @@ void siw_free_qp(struct kref *ref)
> siw_put_tx_cpu(qp->tx_cpu);
>
> atomic_dec(&sdev->num_qp);
> - siw_dbg_qp(qp, "free QP\n");
> - kfree_rcu(qp, rcu);
> }
> diff --git a/drivers/infiniband/sw/siw/siw_verbs.c
> b/drivers/infiniband/sw/siw/siw_verbs.c
> index 3f175f220a22..1b36350601fa 100644
> --- a/drivers/infiniband/sw/siw/siw_verbs.c
> +++ b/drivers/infiniband/sw/siw/siw_verbs.c
> @@ -285,16 +285,16 @@ siw_mmap_entry_insert(struct siw_ucontext
> *uctx,
> *
> * Create QP of requested size on given device.
> *
> - * @pd: Protection Domain
> + * @qp: Queue pait
> * @attrs: Initial QP attributes.
> * @udata: used to provide QP ID, SQ and RQ size back to user.
> */
>
> -struct ib_qp *siw_create_qp(struct ib_pd *pd,
> - struct ib_qp_init_attr *attrs,
> - struct ib_udata *udata)
> +int siw_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *attrs,
> + struct ib_udata *udata)
> {
> - struct siw_qp *qp = NULL;
> + struct ib_pd *pd = ibqp->pd;
> + struct siw_qp *qp = to_siw_qp(ibqp);
> struct ib_device *base_dev = pd->device;
> struct siw_device *sdev = to_siw_dev(base_dev);
> struct siw_ucontext *uctx =
> @@ -307,17 +307,16 @@ struct ib_qp *siw_create_qp(struct ib_pd *pd,
> siw_dbg(base_dev, "create new QP\n");
>
> if (attrs->create_flags)
> - return ERR_PTR(-EOPNOTSUPP);
> + return -EOPNOTSUPP;
>
> if (atomic_inc_return(&sdev->num_qp) > SIW_MAX_QP) {
> siw_dbg(base_dev, "too many QP's\n");
> - rv = -ENOMEM;
> - goto err_out;
> + return -ENOMEM;
> }
> if (attrs->qp_type != IB_QPT_RC) {
> siw_dbg(base_dev, "only RC QP's supported\n");
> rv = -EOPNOTSUPP;
> - goto err_out;
> + goto err_atomic;
> }
> if ((attrs->cap.max_send_wr > SIW_MAX_QP_WR) ||
> (attrs->cap.max_recv_wr > SIW_MAX_QP_WR) ||
> @@ -325,13 +324,13 @@ struct ib_qp *siw_create_qp(struct ib_pd *pd,
> (attrs->cap.max_recv_sge > SIW_MAX_SGE)) {
> siw_dbg(base_dev, "QP size error\n");
> rv = -EINVAL;
> - goto err_out;
> + goto err_atomic;
> }
> if (attrs->cap.max_inline_data > SIW_MAX_INLINE) {
> siw_dbg(base_dev, "max inline send: %d > %d\n",
> attrs->cap.max_inline_data, (int)SIW_MAX_INLINE);
> rv = -EINVAL;
> - goto err_out;
> + goto err_atomic;
> }
> /*
> * NOTE: we allow for zero element SQ and RQ WQE's SGL's
> @@ -340,19 +339,15 @@ struct ib_qp *siw_create_qp(struct ib_pd *pd,
> if (attrs->cap.max_send_wr + attrs->cap.max_recv_wr == 0) {
> siw_dbg(base_dev, "QP must have send or receive
> queue\n");
> rv = -EINVAL;
> - goto err_out;
> + goto err_atomic;
> }
>
> if (!attrs->send_cq || (!attrs->recv_cq && !attrs->srq)) {
> siw_dbg(base_dev, "send CQ or receive CQ invalid\n");
> rv = -EINVAL;
> - goto err_out;
> - }
> - qp = kzalloc(sizeof(*qp), GFP_KERNEL);
> - if (!qp) {
> - rv = -ENOMEM;
> - goto err_out;
> + goto err_atomic;
> }
> +
> init_rwsem(&qp->state_lock);
> spin_lock_init(&qp->sq_lock);
> spin_lock_init(&qp->rq_lock);
> @@ -360,7 +355,7 @@ struct ib_qp *siw_create_qp(struct ib_pd *pd,
>
> rv = siw_qp_add(sdev, qp);
> if (rv)
> - goto err_out;
> + goto err_atomic;
>
> num_sqe = attrs->cap.max_send_wr;
> num_rqe = attrs->cap.max_recv_wr;
> @@ -482,23 +477,20 @@ struct ib_qp *siw_create_qp(struct ib_pd *pd,
> list_add_tail(&qp->devq, &sdev->qp_list);
> spin_unlock_irqrestore(&sdev->lock, flags);
>
> - return &qp->base_qp;
> + return 0;
>
> err_out_xa:
> xa_erase(&sdev->qp_xa, qp_id(qp));
> -err_out:
> - if (qp) {
> - if (uctx) {
> - rdma_user_mmap_entry_remove(qp->sq_entry);
> - rdma_user_mmap_entry_remove(qp->rq_entry);
> - }
> - vfree(qp->sendq);
> - vfree(qp->recvq);
> - kfree(qp);
> + if (uctx) {
> + rdma_user_mmap_entry_remove(qp->sq_entry);
> + rdma_user_mmap_entry_remove(qp->rq_entry);
> }
> - atomic_dec(&sdev->num_qp);
> + vfree(qp->sendq);
> + vfree(qp->recvq);
>
> - return ERR_PTR(rv);
> +err_atomic:
> + atomic_dec(&sdev->num_qp);
> + return rv;
> }
>
> /*
> diff --git a/drivers/infiniband/sw/siw/siw_verbs.h
> b/drivers/infiniband/sw/siw/siw_verbs.h
> index 67ac08886a70..09964234f8d3 100644
> --- a/drivers/infiniband/sw/siw/siw_verbs.h
> +++ b/drivers/infiniband/sw/siw/siw_verbs.h
> @@ -50,9 +50,8 @@ int siw_query_gid(struct ib_device *base_dev, u32
> port, int idx,
> union ib_gid *gid);
> int siw_alloc_pd(struct ib_pd *base_pd, struct ib_udata *udata);
> int siw_dealloc_pd(struct ib_pd *base_pd, struct ib_udata *udata);
> -struct ib_qp *siw_create_qp(struct ib_pd *base_pd,
> - struct ib_qp_init_attr *attr,
> - struct ib_udata *udata);
> +int siw_create_qp(struct ib_qp *qp, struct ib_qp_init_attr *attr,
> + struct ib_udata *udata);
> int siw_query_qp(struct ib_qp *base_qp, struct ib_qp_attr *qp_attr,
> int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr);
> int siw_verbs_modify_qp(struct ib_qp *base_qp, struct ib_qp_attr *attr,
> diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
> index 2dba30849731..8cd7d1fc719f 100644
> --- a/include/rdma/ib_verbs.h
> +++ b/include/rdma/ib_verbs.h
> @@ -2268,8 +2268,13 @@ struct iw_cm_conn_param;
> !__same_type(((struct drv_struct *)NULL)-
> >member, \
> struct ib_struct)))
>
> -#define rdma_zalloc_drv_obj_gfp(ib_dev, ib_type, gfp) \
> - ((struct ib_type *)kzalloc(ib_dev->ops.size_##ib_type, gfp))
> +#define rdma_zalloc_drv_obj_gfp(ib_dev, ib_type, gfp) \
> + ((struct ib_type *)rdma_zalloc_obj(ib_dev, ib_dev-
> >ops.size_##ib_type, \
> + gfp, false))
> +
> +#define rdma_zalloc_drv_obj_numa(ib_dev, ib_type) \
> + ((struct ib_type *)rdma_zalloc_obj(ib_dev, ib_dev-
> >ops.size_##ib_type, \
> + GFP_KERNEL, true))
>
> #define rdma_zalloc_drv_obj(ib_dev, ib_type) \
> rdma_zalloc_drv_obj_gfp(ib_dev, ib_type, GFP_KERNEL)
> @@ -2435,9 +2440,8 @@ struct ib_device_ops {
> struct ib_udata *udata);
> int (*query_srq)(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
> int (*destroy_srq)(struct ib_srq *srq, struct ib_udata *udata);
> - struct ib_qp *(*create_qp)(struct ib_pd *pd,
> - struct ib_qp_init_attr *qp_init_attr,
> - struct ib_udata *udata);
> + int (*create_qp)(struct ib_qp *qp, struct ib_qp_init_attr
> *qp_init_attr,
> + struct ib_udata *udata);
> int (*modify_qp)(struct ib_qp *qp, struct ib_qp_attr *qp_attr,
> int qp_attr_mask, struct ib_udata *udata);
> int (*query_qp)(struct ib_qp *qp, struct ib_qp_attr *qp_attr,
> @@ -2635,11 +2639,18 @@ struct ib_device_ops {
> int (*query_ucontext)(struct ib_ucontext *context,
> struct uverbs_attr_bundle *attrs);
>
> + /*
> + * Provide NUMA node. This API exists for rdmavt/hfi1 only.
> + * Everyone else relies on Linux memory management model.
> + */
> + int (*get_numa_node)(struct ib_device *dev);
> +
> DECLARE_RDMA_OBJ_SIZE(ib_ah);
> DECLARE_RDMA_OBJ_SIZE(ib_counters);
> DECLARE_RDMA_OBJ_SIZE(ib_cq);
> DECLARE_RDMA_OBJ_SIZE(ib_mw);
> DECLARE_RDMA_OBJ_SIZE(ib_pd);
> + DECLARE_RDMA_OBJ_SIZE(ib_qp);
> DECLARE_RDMA_OBJ_SIZE(ib_rwq_ind_table);
> DECLARE_RDMA_OBJ_SIZE(ib_srq);
> DECLARE_RDMA_OBJ_SIZE(ib_ucontext);
> @@ -2746,6 +2757,15 @@ struct ib_device {
> u32 lag_flags;
> };
>
> +static inline void *rdma_zalloc_obj(struct ib_device *dev, size_t size,
> + gfp_t gfp, bool is_numa_aware)
> +{
> + if (is_numa_aware && dev->ops.get_numa_node)
> + return kzalloc_node(size, gfp, dev-
> >ops.get_numa_node(dev));
> +
> + return kzalloc(size, gfp);
> +}
> +
> struct ib_client_nl_info;
> struct ib_client {
> const char *name;
> --
> 2.31.1

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