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Diffstat (limited to 'drivers/infiniband/core/uverbs_std_types.c')
-rw-r--r--drivers/infiniband/core/uverbs_std_types.c126
1 files changed, 17 insertions, 109 deletions
diff --git a/drivers/infiniband/core/uverbs_std_types.c b/drivers/infiniband/core/uverbs_std_types.c
index 3abfc63225cb..13776a66e2e4 100644
--- a/drivers/infiniband/core/uverbs_std_types.c
+++ b/drivers/infiniband/core/uverbs_std_types.c
@@ -75,96 +75,28 @@ static int uverbs_free_mw(struct ib_uobject *uobject,
return uverbs_dealloc_mw((struct ib_mw *)uobject->object);
}
-static int uverbs_free_qp(struct ib_uobject *uobject,
- enum rdma_remove_reason why,
- struct uverbs_attr_bundle *attrs)
-{
- struct ib_qp *qp = uobject->object;
- struct ib_uqp_object *uqp =
- container_of(uobject, struct ib_uqp_object, uevent.uobject);
- int ret;
-
- /*
- * If this is a user triggered destroy then do not allow destruction
- * until the user cleans up all the mcast bindings. Unlike in other
- * places we forcibly clean up the mcast attachments for !DESTROY
- * because the mcast attaches are not ubojects and will not be
- * destroyed by anything else during cleanup processing.
- */
- if (why == RDMA_REMOVE_DESTROY) {
- if (!list_empty(&uqp->mcast_list))
- return -EBUSY;
- } else if (qp == qp->real_qp) {
- ib_uverbs_detach_umcast(qp, uqp);
- }
-
- ret = ib_destroy_qp_user(qp, &attrs->driver_udata);
- if (ib_is_destroy_retryable(ret, why, uobject))
- return ret;
-
- if (uqp->uxrcd)
- atomic_dec(&uqp->uxrcd->refcnt);
-
- ib_uverbs_release_uevent(&uqp->uevent);
- return ret;
-}
-
static int uverbs_free_rwq_ind_tbl(struct ib_uobject *uobject,
enum rdma_remove_reason why,
struct uverbs_attr_bundle *attrs)
{
struct ib_rwq_ind_table *rwq_ind_tbl = uobject->object;
struct ib_wq **ind_tbl = rwq_ind_tbl->ind_tbl;
- int ret;
-
- ret = ib_destroy_rwq_ind_table(rwq_ind_tbl);
- if (ib_is_destroy_retryable(ret, why, uobject))
- return ret;
+ u32 table_size = (1 << rwq_ind_tbl->log_ind_tbl_size);
+ int ret, i;
- kfree(ind_tbl);
- return ret;
-}
+ if (atomic_read(&rwq_ind_tbl->usecnt))
+ return -EBUSY;
-static int uverbs_free_wq(struct ib_uobject *uobject,
- enum rdma_remove_reason why,
- struct uverbs_attr_bundle *attrs)
-{
- struct ib_wq *wq = uobject->object;
- struct ib_uwq_object *uwq =
- container_of(uobject, struct ib_uwq_object, uevent.uobject);
- int ret;
-
- ret = ib_destroy_wq(wq, &attrs->driver_udata);
- if (ib_is_destroy_retryable(ret, why, uobject))
- return ret;
-
- ib_uverbs_release_uevent(&uwq->uevent);
- return ret;
-}
-
-static int uverbs_free_srq(struct ib_uobject *uobject,
- enum rdma_remove_reason why,
- struct uverbs_attr_bundle *attrs)
-{
- struct ib_srq *srq = uobject->object;
- struct ib_uevent_object *uevent =
- container_of(uobject, struct ib_uevent_object, uobject);
- enum ib_srq_type srq_type = srq->srq_type;
- int ret;
-
- ret = ib_destroy_srq_user(srq, &attrs->driver_udata);
- if (ib_is_destroy_retryable(ret, why, uobject))
+ ret = rwq_ind_tbl->device->ops.destroy_rwq_ind_table(rwq_ind_tbl);
+ if (ret)
return ret;
- if (srq_type == IB_SRQT_XRC) {
- struct ib_usrq_object *us =
- container_of(uevent, struct ib_usrq_object, uevent);
-
- atomic_dec(&us->uxrcd->refcnt);
- }
+ for (i = 0; i < table_size; i++)
+ atomic_dec(&ind_tbl[i]->usecnt);
- ib_uverbs_release_uevent(uevent);
- return ret;
+ kfree(rwq_ind_tbl);
+ kfree(ind_tbl);
+ return 0;
}
static int uverbs_free_xrcd(struct ib_uobject *uobject,
@@ -176,9 +108,8 @@ static int uverbs_free_xrcd(struct ib_uobject *uobject,
container_of(uobject, struct ib_uxrcd_object, uobject);
int ret;
- ret = ib_destroy_usecnt(&uxrcd->refcnt, why, uobject);
- if (ret)
- return ret;
+ if (atomic_read(&uxrcd->refcnt))
+ return -EBUSY;
mutex_lock(&attrs->ufile->device->xrcd_tree_mutex);
ret = ib_uverbs_dealloc_xrcd(uobject, xrcd, why, attrs);
@@ -192,14 +123,11 @@ static int uverbs_free_pd(struct ib_uobject *uobject,
struct uverbs_attr_bundle *attrs)
{
struct ib_pd *pd = uobject->object;
- int ret;
- ret = ib_destroy_usecnt(&pd->usecnt, why, uobject);
- if (ret)
- return ret;
+ if (atomic_read(&pd->usecnt))
+ return -EBUSY;
- ib_dealloc_pd_user(pd, &attrs->driver_udata);
- return 0;
+ return ib_dealloc_pd_user(pd, &attrs->driver_udata);
}
void ib_uverbs_free_event_queue(struct ib_uverbs_event_queue *event_queue)
@@ -226,7 +154,7 @@ void ib_uverbs_free_event_queue(struct ib_uverbs_event_queue *event_queue)
spin_unlock_irq(&event_queue->lock);
}
-static int
+static void
uverbs_completion_event_file_destroy_uobj(struct ib_uobject *uobj,
enum rdma_remove_reason why)
{
@@ -235,7 +163,6 @@ uverbs_completion_event_file_destroy_uobj(struct ib_uobject *uobj,
uobj);
ib_uverbs_free_event_queue(&file->ev_queue);
- return 0;
}
int uverbs_destroy_def_handler(struct uverbs_attr_bundle *attrs)
@@ -252,10 +179,6 @@ DECLARE_UVERBS_NAMED_OBJECT(
"[infinibandevent]",
O_RDONLY));
-DECLARE_UVERBS_NAMED_OBJECT(
- UVERBS_OBJECT_QP,
- UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uqp_object), uverbs_free_qp));
-
DECLARE_UVERBS_NAMED_METHOD_DESTROY(
UVERBS_METHOD_MW_DESTROY,
UVERBS_ATTR_IDR(UVERBS_ATTR_DESTROY_MW_HANDLE,
@@ -267,11 +190,6 @@ DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_MW,
UVERBS_TYPE_ALLOC_IDR(uverbs_free_mw),
&UVERBS_METHOD(UVERBS_METHOD_MW_DESTROY));
-DECLARE_UVERBS_NAMED_OBJECT(
- UVERBS_OBJECT_SRQ,
- UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_usrq_object),
- uverbs_free_srq));
-
DECLARE_UVERBS_NAMED_METHOD_DESTROY(
UVERBS_METHOD_AH_DESTROY,
UVERBS_ATTR_IDR(UVERBS_ATTR_DESTROY_AH_HANDLE,
@@ -296,10 +214,6 @@ DECLARE_UVERBS_NAMED_OBJECT(
uverbs_free_flow),
&UVERBS_METHOD(UVERBS_METHOD_FLOW_DESTROY));
-DECLARE_UVERBS_NAMED_OBJECT(
- UVERBS_OBJECT_WQ,
- UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uwq_object), uverbs_free_wq));
-
DECLARE_UVERBS_NAMED_METHOD_DESTROY(
UVERBS_METHOD_RWQ_IND_TBL_DESTROY,
UVERBS_ATTR_IDR(UVERBS_ATTR_DESTROY_RWQ_IND_TBL_HANDLE,
@@ -340,18 +254,12 @@ const struct uapi_definition uverbs_def_obj_intf[] = {
UAPI_DEF_OBJ_NEEDS_FN(dealloc_pd)),
UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_COMP_CHANNEL,
UAPI_DEF_OBJ_NEEDS_FN(dealloc_pd)),
- UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_QP,
- UAPI_DEF_OBJ_NEEDS_FN(destroy_qp)),
UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_AH,
UAPI_DEF_OBJ_NEEDS_FN(destroy_ah)),
UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_MW,
UAPI_DEF_OBJ_NEEDS_FN(dealloc_mw)),
- UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_SRQ,
- UAPI_DEF_OBJ_NEEDS_FN(destroy_srq)),
UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_FLOW,
UAPI_DEF_OBJ_NEEDS_FN(destroy_flow)),
- UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_WQ,
- UAPI_DEF_OBJ_NEEDS_FN(destroy_wq)),
UAPI_DEF_CHAIN_OBJ_TREE_NAMED(
UVERBS_OBJECT_RWQ_IND_TBL,
UAPI_DEF_OBJ_NEEDS_FN(destroy_rwq_ind_table)),