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sys/ofed/drivers/infiniband/core/ib_uverbs_std_types.c
- This file was added.
/* | |||||
* Copyright (c) 2017, Mellanox Technologies inc. All rights reserved. | |||||
* | |||||
* This software is available to you under a choice of one of two | |||||
* licenses. You may choose to be licensed under the terms of the GNU | |||||
* General Public License (GPL) Version 2, available from the file | |||||
* COPYING in the main directory of this source tree, or the | |||||
* OpenIB.org BSD license below: | |||||
* | |||||
* Redistribution and use in source and binary forms, with or | |||||
* without modification, are permitted provided that the following | |||||
* conditions are met: | |||||
* | |||||
* - Redistributions of source code must retain the above | |||||
* copyright notice, this list of conditions and the following | |||||
* disclaimer. | |||||
* | |||||
* - Redistributions in binary form must reproduce the above | |||||
* copyright notice, this list of conditions and the following | |||||
* disclaimer in the documentation and/or other materials | |||||
* provided with the distribution. | |||||
* | |||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |||||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |||||
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |||||
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |||||
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |||||
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |||||
* SOFTWARE. | |||||
*/ | |||||
#include <rdma/uverbs_std_types.h> | |||||
#include <rdma/ib_user_verbs.h> | |||||
#include <rdma/ib_verbs.h> | |||||
#include <linux/file.h> | |||||
#include "rdma_core.h" | |||||
#include "uverbs.h" | |||||
static int uverbs_free_ah(struct ib_uobject *uobject, | |||||
enum rdma_remove_reason why, | |||||
struct uverbs_attr_bundle *attrs) | |||||
{ | |||||
return ib_destroy_ah_user((struct ib_ah *)uobject->object, | |||||
RDMA_DESTROY_AH_SLEEPABLE, | |||||
&attrs->driver_udata); | |||||
} | |||||
static int uverbs_free_flow(struct ib_uobject *uobject, | |||||
enum rdma_remove_reason why, | |||||
struct uverbs_attr_bundle *attrs) | |||||
{ | |||||
struct ib_flow *flow = (struct ib_flow *)uobject->object; | |||||
struct ib_uflow_object *uflow = | |||||
container_of(uobject, struct ib_uflow_object, uobject); | |||||
struct ib_qp *qp = flow->qp; | |||||
int ret; | |||||
ret = flow->device->destroy_flow(flow); | |||||
if (!ret) { | |||||
if (qp) | |||||
atomic_dec(&qp->usecnt); | |||||
ib_uverbs_flow_resources_free(uflow->resources); | |||||
} | |||||
return ret; | |||||
} | |||||
static int uverbs_free_mw(struct ib_uobject *uobject, | |||||
enum rdma_remove_reason why, | |||||
struct uverbs_attr_bundle *attrs) | |||||
{ | |||||
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; | |||||
kfree(ind_tbl); | |||||
return ret; | |||||
} | |||||
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)) | |||||
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); | |||||
} | |||||
ib_uverbs_release_uevent(uevent); | |||||
return ret; | |||||
} | |||||
static int uverbs_free_xrcd(struct ib_uobject *uobject, | |||||
enum rdma_remove_reason why, | |||||
struct uverbs_attr_bundle *attrs) | |||||
{ | |||||
struct ib_xrcd *xrcd = uobject->object; | |||||
struct ib_uxrcd_object *uxrcd = | |||||
container_of(uobject, struct ib_uxrcd_object, uobject); | |||||
int ret; | |||||
ret = ib_destroy_usecnt(&uxrcd->refcnt, why, uobject); | |||||
if (ret) | |||||
return ret; | |||||
mutex_lock(&attrs->ufile->device->xrcd_tree_mutex); | |||||
ret = ib_uverbs_dealloc_xrcd(uobject, xrcd, why, attrs); | |||||
mutex_unlock(&attrs->ufile->device->xrcd_tree_mutex); | |||||
return ret; | |||||
} | |||||
static int uverbs_free_pd(struct ib_uobject *uobject, | |||||
enum rdma_remove_reason why, | |||||
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; | |||||
ib_dealloc_pd_user(pd, &attrs->driver_udata); | |||||
return 0; | |||||
} | |||||
void ib_uverbs_free_event_queue(struct ib_uverbs_event_queue *event_queue) | |||||
{ | |||||
struct ib_uverbs_event *entry, *tmp; | |||||
spin_lock_irq(&event_queue->lock); | |||||
/* | |||||
* The user must ensure that no new items are added to the event_list | |||||
* once is_closed is set. | |||||
*/ | |||||
event_queue->is_closed = 1; | |||||
spin_unlock_irq(&event_queue->lock); | |||||
wake_up_interruptible(&event_queue->poll_wait); | |||||
kill_fasync(&event_queue->async_queue, SIGIO, POLL_IN); | |||||
spin_lock_irq(&event_queue->lock); | |||||
list_for_each_entry_safe(entry, tmp, &event_queue->event_list, list) { | |||||
if (entry->counter) | |||||
list_del(&entry->obj_list); | |||||
list_del(&entry->list); | |||||
kfree(entry); | |||||
} | |||||
spin_unlock_irq(&event_queue->lock); | |||||
} | |||||
static int | |||||
uverbs_completion_event_file_destroy_uobj(struct ib_uobject *uobj, | |||||
enum rdma_remove_reason why) | |||||
{ | |||||
struct ib_uverbs_completion_event_file *file = | |||||
container_of(uobj, struct ib_uverbs_completion_event_file, | |||||
uobj); | |||||
ib_uverbs_free_event_queue(&file->ev_queue); | |||||
return 0; | |||||
} | |||||
int uverbs_destroy_def_handler(struct uverbs_attr_bundle *attrs) | |||||
{ | |||||
return 0; | |||||
} | |||||
EXPORT_SYMBOL(uverbs_destroy_def_handler); | |||||
DECLARE_UVERBS_NAMED_OBJECT( | |||||
UVERBS_OBJECT_COMP_CHANNEL, | |||||
UVERBS_TYPE_ALLOC_FD(sizeof(struct ib_uverbs_completion_event_file), | |||||
uverbs_completion_event_file_destroy_uobj, | |||||
&uverbs_event_fops, | |||||
"[infinibandevent]", | |||||
FMODE_READ)); | |||||
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, | |||||
UVERBS_OBJECT_MW, | |||||
UVERBS_ACCESS_DESTROY, | |||||
UA_MANDATORY)); | |||||
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, | |||||
UVERBS_OBJECT_AH, | |||||
UVERBS_ACCESS_DESTROY, | |||||
UA_MANDATORY)); | |||||
DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_AH, | |||||
UVERBS_TYPE_ALLOC_IDR(uverbs_free_ah), | |||||
&UVERBS_METHOD(UVERBS_METHOD_AH_DESTROY)); | |||||
DECLARE_UVERBS_NAMED_METHOD_DESTROY( | |||||
UVERBS_METHOD_FLOW_DESTROY, | |||||
UVERBS_ATTR_IDR(UVERBS_ATTR_DESTROY_FLOW_HANDLE, | |||||
UVERBS_OBJECT_FLOW, | |||||
UVERBS_ACCESS_DESTROY, | |||||
UA_MANDATORY)); | |||||
DECLARE_UVERBS_NAMED_OBJECT( | |||||
UVERBS_OBJECT_FLOW, | |||||
UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uflow_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, | |||||
UVERBS_OBJECT_RWQ_IND_TBL, | |||||
UVERBS_ACCESS_DESTROY, | |||||
UA_MANDATORY)); | |||||
DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_RWQ_IND_TBL, | |||||
UVERBS_TYPE_ALLOC_IDR(uverbs_free_rwq_ind_tbl), | |||||
&UVERBS_METHOD(UVERBS_METHOD_RWQ_IND_TBL_DESTROY)); | |||||
DECLARE_UVERBS_NAMED_METHOD_DESTROY( | |||||
UVERBS_METHOD_XRCD_DESTROY, | |||||
UVERBS_ATTR_IDR(UVERBS_ATTR_DESTROY_XRCD_HANDLE, | |||||
UVERBS_OBJECT_XRCD, | |||||
UVERBS_ACCESS_DESTROY, | |||||
UA_MANDATORY)); | |||||
DECLARE_UVERBS_NAMED_OBJECT( | |||||
UVERBS_OBJECT_XRCD, | |||||
UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uxrcd_object), | |||||
uverbs_free_xrcd), | |||||
&UVERBS_METHOD(UVERBS_METHOD_XRCD_DESTROY)); | |||||
DECLARE_UVERBS_NAMED_METHOD_DESTROY( | |||||
UVERBS_METHOD_PD_DESTROY, | |||||
UVERBS_ATTR_IDR(UVERBS_ATTR_DESTROY_PD_HANDLE, | |||||
UVERBS_OBJECT_PD, | |||||
UVERBS_ACCESS_DESTROY, | |||||
UA_MANDATORY)); | |||||
DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_PD, | |||||
UVERBS_TYPE_ALLOC_IDR(uverbs_free_pd), | |||||
&UVERBS_METHOD(UVERBS_METHOD_PD_DESTROY)); | |||||
const struct uapi_definition uverbs_def_obj_intf[] = { | |||||
UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_PD, | |||||
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)), | |||||
UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_XRCD, | |||||
UAPI_DEF_OBJ_NEEDS_FN(dealloc_xrcd)), | |||||
{} | |||||
}; |