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IB/core: Separate CQ handle in SRQ context 

Before this change CQ attached to SRQ was part of XRC specific extension.
Moving CQ handle out makes it available to other types extending SRQ
functionality.

Signed-off-by: Artemy Kovalyov <artemyko@mellanox.com>
Reviewed-by: Yossi Itigin <yosefe@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Artemy Kovalyov 2017-08-17 15:52:04 +03:00 committed by Doug Ledford
parent 6938fc1ee0
commit 1a56ff6daa
6 changed files with 60 additions and 39 deletions
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27
drivers/infiniband/core/uverbs_cmd.c
View File

@ -3497,10 +3497,12 @@ static int __uverbs_create_xsrq(struct ib_uverbs_file *file,
obj->uxrcd = container_of(xrcd_uobj, struct ib_uxrcd_object, uobject);
atomic_inc(&obj->uxrcd->refcnt);
}
attr.ext.xrc.cq = uobj_get_obj_read(cq, cmd->cq_handle,
file->ucontext);
if (!attr.ext.xrc.cq) {
if (ib_srq_has_cq(cmd->srq_type)) {
attr.ext.cq = uobj_get_obj_read(cq, cmd->cq_handle,
file->ucontext);
if (!attr.ext.cq) {
ret = -EINVAL;
goto err_put_xrcd;
}
@ -3535,10 +3537,13 @@ static int __uverbs_create_xsrq(struct ib_uverbs_file *file,
srq->event_handler = attr.event_handler;
srq->srq_context = attr.srq_context;
if (ib_srq_has_cq(cmd->srq_type)) {
srq->ext.cq = attr.ext.cq;
atomic_inc(&attr.ext.cq->usecnt);
}
if (cmd->srq_type == IB_SRQT_XRC) {
srq->ext.xrc.cq = attr.ext.xrc.cq;
srq->ext.xrc.xrcd = attr.ext.xrc.xrcd;
atomic_inc(&attr.ext.xrc.cq->usecnt);
atomic_inc(&attr.ext.xrc.xrcd->usecnt);
}
@ -3561,10 +3566,12 @@ static int __uverbs_create_xsrq(struct ib_uverbs_file *file,
goto err_copy;
}
if (cmd->srq_type == IB_SRQT_XRC) {
if (cmd->srq_type == IB_SRQT_XRC)
uobj_put_read(xrcd_uobj);
uobj_put_obj_read(attr.ext.xrc.cq);
}
if (ib_srq_has_cq(cmd->srq_type))
uobj_put_obj_read(attr.ext.cq);
uobj_put_obj_read(pd);
uobj_alloc_commit(&obj->uevent.uobject);
@ -3577,8 +3584,8 @@ static int __uverbs_create_xsrq(struct ib_uverbs_file *file,
uobj_put_obj_read(pd);
err_put_cq:
if (cmd->srq_type == IB_SRQT_XRC)
uobj_put_obj_read(attr.ext.xrc.cq);
if (ib_srq_has_cq(cmd->srq_type))
uobj_put_obj_read(attr.ext.cq);
err_put_xrcd:
if (cmd->srq_type == IB_SRQT_XRC) {

16
drivers/infiniband/core/verbs.c
View File

@ -622,11 +622,13 @@ struct ib_srq *ib_create_srq(struct ib_pd *pd,
srq->event_handler = srq_init_attr->event_handler;
srq->srq_context = srq_init_attr->srq_context;
srq->srq_type = srq_init_attr->srq_type;
if (ib_srq_has_cq(srq->srq_type)) {
srq->ext.cq = srq_init_attr->ext.cq;
atomic_inc(&srq->ext.cq->usecnt);
}
if (srq->srq_type == IB_SRQT_XRC) {
srq->ext.xrc.xrcd = srq_init_attr->ext.xrc.xrcd;
srq->ext.xrc.cq = srq_init_attr->ext.xrc.cq;
atomic_inc(&srq->ext.xrc.xrcd->usecnt);
atomic_inc(&srq->ext.xrc.cq->usecnt);
}
atomic_inc(&pd->usecnt);
atomic_set(&srq->usecnt, 0);
@ -667,18 +669,18 @@ int ib_destroy_srq(struct ib_srq *srq)
pd = srq->pd;
srq_type = srq->srq_type;
if (srq_type == IB_SRQT_XRC) {
if (ib_srq_has_cq(srq_type))
cq = srq->ext.cq;
if (srq_type == IB_SRQT_XRC)
xrcd = srq->ext.xrc.xrcd;
cq = srq->ext.xrc.cq;
}
ret = srq->device->destroy_srq(srq);
if (!ret) {
atomic_dec(&pd->usecnt);
if (srq_type == IB_SRQT_XRC) {
if (srq_type == IB_SRQT_XRC)
atomic_dec(&xrcd->usecnt);
if (ib_srq_has_cq(srq_type))
atomic_dec(&cq->usecnt);
}
}
return ret;

4
drivers/infiniband/hw/mlx4/srq.c
View File

@ -178,8 +178,8 @@ struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd,
}
}
cqn = (init_attr->srq_type == IB_SRQT_XRC) ?
to_mcq(init_attr->ext.xrc.cq)->mcq.cqn : 0;
cqn = ib_srq_has_cq(init_attr->srq_type) ?
to_mcq(init_attr->ext.cq)->mcq.cqn : 0;
xrcdn = (init_attr->srq_type == IB_SRQT_XRC) ?
to_mxrcd(init_attr->ext.xrc.xrcd)->xrcdn :
(u16) dev->dev->caps.reserved_xrcds;

10
drivers/infiniband/hw/mlx5/main.c
View File

@ -3217,7 +3217,7 @@ static int create_dev_resources(struct mlx5_ib_resources *devr)
attr.attr.max_sge = 1;
attr.attr.max_wr = 1;
attr.srq_type = IB_SRQT_XRC;
attr.ext.xrc.cq = devr->c0;
attr.ext.cq = devr->c0;
attr.ext.xrc.xrcd = devr->x0;
devr->s0 = mlx5_ib_create_srq(devr->p0, &attr, NULL);
@ -3232,9 +3232,9 @@ static int create_dev_resources(struct mlx5_ib_resources *devr)
devr->s0->srq_context = NULL;
devr->s0->srq_type = IB_SRQT_XRC;
devr->s0->ext.xrc.xrcd = devr->x0;
devr->s0->ext.xrc.cq = devr->c0;
devr->s0->ext.cq = devr->c0;
atomic_inc(&devr->s0->ext.xrc.xrcd->usecnt);
atomic_inc(&devr->s0->ext.xrc.cq->usecnt);
atomic_inc(&devr->s0->ext.cq->usecnt);
atomic_inc(&devr->p0->usecnt);
atomic_set(&devr->s0->usecnt, 0);
@ -3253,9 +3253,9 @@ static int create_dev_resources(struct mlx5_ib_resources *devr)
devr->s1->event_handler = NULL;
devr->s1->srq_context = NULL;
devr->s1->srq_type = IB_SRQT_BASIC;
devr->s1->ext.xrc.cq = devr->c0;
devr->s1->ext.cq = devr->c0;
atomic_inc(&devr->p0->usecnt);
atomic_set(&devr->s0->usecnt, 0);
atomic_set(&devr->s1->usecnt, 0);
for (port = 0; port < ARRAY_SIZE(devr->ports); ++port) {
INIT_WORK(&devr->ports[port].pkey_change_work,

11
drivers/infiniband/hw/mlx5/srq.c
View File

@ -292,13 +292,16 @@ struct ib_srq *mlx5_ib_create_srq(struct ib_pd *pd,
in.wqe_shift = srq->msrq.wqe_shift - 4;
if (srq->wq_sig)
in.flags |= MLX5_SRQ_FLAG_WQ_SIG;
if (init_attr->srq_type == IB_SRQT_XRC) {
if (init_attr->srq_type == IB_SRQT_XRC)
in.xrcd = to_mxrcd(init_attr->ext.xrc.xrcd)->xrcdn;
in.cqn = to_mcq(init_attr->ext.xrc.cq)->mcq.cqn;
} else if (init_attr->srq_type == IB_SRQT_BASIC) {
else
in.xrcd = to_mxrcd(dev->devr.x0)->xrcdn;
if (ib_srq_has_cq(init_attr->srq_type))
in.cqn = to_mcq(init_attr->ext.cq)->mcq.cqn;
else
in.cqn = to_mcq(dev->devr.c0)->mcq.cqn;
}
in.pd = to_mpd(pd)->pdn;
in.db_record = srq->db.dma;

31
include/rdma/ib_verbs.h
View File

@ -994,6 +994,11 @@ enum ib_srq_type {
IB_SRQT_XRC
};
static inline bool ib_srq_has_cq(enum ib_srq_type srq_type)
{
return srq_type == IB_SRQT_XRC;
}
enum ib_srq_attr_mask {
IB_SRQ_MAX_WR = 1 << 0,
IB_SRQ_LIMIT = 1 << 1,
@ -1011,11 +1016,13 @@ struct ib_srq_init_attr {
struct ib_srq_attr attr;
enum ib_srq_type srq_type;
union {
struct {
struct ib_xrcd *xrcd;
struct ib_cq *cq;
} xrc;
struct {
struct ib_cq *cq;
union {
struct {
struct ib_xrcd *xrcd;
} xrc;
};
} ext;
};
@ -1554,12 +1561,14 @@ struct ib_srq {
enum ib_srq_type srq_type;
atomic_t usecnt;
union {
struct {
struct ib_xrcd *xrcd;
struct ib_cq *cq;
u32 srq_num;
} xrc;
struct {
struct ib_cq *cq;
union {
struct {
struct ib_xrcd *xrcd;
u32 srq_num;
} xrc;
};
} ext;
};