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c5633a72a1
All FD object destroy implementations return 0, so declare this callback void. Link: https://lore.kernel.org/r/20201104144556.3809085-3-leon@kernel.org Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
269 lines
8 KiB
C
269 lines
8 KiB
C
/*
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* Copyright (c) 2017, Mellanox Technologies inc. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <rdma/uverbs_std_types.h>
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#include <rdma/ib_user_verbs.h>
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#include <rdma/ib_verbs.h>
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#include <linux/bug.h>
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#include <linux/file.h>
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#include <rdma/restrack.h>
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#include "rdma_core.h"
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#include "uverbs.h"
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static int uverbs_free_ah(struct ib_uobject *uobject,
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enum rdma_remove_reason why,
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struct uverbs_attr_bundle *attrs)
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{
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return rdma_destroy_ah_user((struct ib_ah *)uobject->object,
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RDMA_DESTROY_AH_SLEEPABLE,
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&attrs->driver_udata);
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}
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static int uverbs_free_flow(struct ib_uobject *uobject,
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enum rdma_remove_reason why,
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struct uverbs_attr_bundle *attrs)
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{
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struct ib_flow *flow = (struct ib_flow *)uobject->object;
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struct ib_uflow_object *uflow =
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container_of(uobject, struct ib_uflow_object, uobject);
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struct ib_qp *qp = flow->qp;
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int ret;
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ret = flow->device->ops.destroy_flow(flow);
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if (!ret) {
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if (qp)
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atomic_dec(&qp->usecnt);
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ib_uverbs_flow_resources_free(uflow->resources);
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}
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return ret;
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}
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static int uverbs_free_mw(struct ib_uobject *uobject,
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enum rdma_remove_reason why,
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struct uverbs_attr_bundle *attrs)
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{
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return uverbs_dealloc_mw((struct ib_mw *)uobject->object);
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}
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static int uverbs_free_rwq_ind_tbl(struct ib_uobject *uobject,
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enum rdma_remove_reason why,
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struct uverbs_attr_bundle *attrs)
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{
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struct ib_rwq_ind_table *rwq_ind_tbl = uobject->object;
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struct ib_wq **ind_tbl = rwq_ind_tbl->ind_tbl;
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u32 table_size = (1 << rwq_ind_tbl->log_ind_tbl_size);
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int ret, i;
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if (atomic_read(&rwq_ind_tbl->usecnt))
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return -EBUSY;
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ret = rwq_ind_tbl->device->ops.destroy_rwq_ind_table(rwq_ind_tbl);
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if (ret)
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return ret;
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for (i = 0; i < table_size; i++)
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atomic_dec(&ind_tbl[i]->usecnt);
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kfree(rwq_ind_tbl);
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kfree(ind_tbl);
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return 0;
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}
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static int uverbs_free_xrcd(struct ib_uobject *uobject,
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enum rdma_remove_reason why,
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struct uverbs_attr_bundle *attrs)
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{
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struct ib_xrcd *xrcd = uobject->object;
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struct ib_uxrcd_object *uxrcd =
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container_of(uobject, struct ib_uxrcd_object, uobject);
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int ret;
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if (atomic_read(&uxrcd->refcnt))
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return -EBUSY;
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mutex_lock(&attrs->ufile->device->xrcd_tree_mutex);
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ret = ib_uverbs_dealloc_xrcd(uobject, xrcd, why, attrs);
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mutex_unlock(&attrs->ufile->device->xrcd_tree_mutex);
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return ret;
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}
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static int uverbs_free_pd(struct ib_uobject *uobject,
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enum rdma_remove_reason why,
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struct uverbs_attr_bundle *attrs)
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{
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struct ib_pd *pd = uobject->object;
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if (atomic_read(&pd->usecnt))
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return -EBUSY;
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return ib_dealloc_pd_user(pd, &attrs->driver_udata);
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}
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void ib_uverbs_free_event_queue(struct ib_uverbs_event_queue *event_queue)
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{
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struct ib_uverbs_event *entry, *tmp;
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spin_lock_irq(&event_queue->lock);
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/*
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* The user must ensure that no new items are added to the event_list
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* once is_closed is set.
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*/
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event_queue->is_closed = 1;
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spin_unlock_irq(&event_queue->lock);
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wake_up_interruptible(&event_queue->poll_wait);
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kill_fasync(&event_queue->async_queue, SIGIO, POLL_IN);
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spin_lock_irq(&event_queue->lock);
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list_for_each_entry_safe(entry, tmp, &event_queue->event_list, list) {
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if (entry->counter)
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list_del(&entry->obj_list);
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list_del(&entry->list);
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kfree(entry);
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}
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spin_unlock_irq(&event_queue->lock);
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}
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static void
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uverbs_completion_event_file_destroy_uobj(struct ib_uobject *uobj,
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enum rdma_remove_reason why)
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{
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struct ib_uverbs_completion_event_file *file =
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container_of(uobj, struct ib_uverbs_completion_event_file,
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uobj);
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ib_uverbs_free_event_queue(&file->ev_queue);
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}
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int uverbs_destroy_def_handler(struct uverbs_attr_bundle *attrs)
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{
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return 0;
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}
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EXPORT_SYMBOL(uverbs_destroy_def_handler);
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DECLARE_UVERBS_NAMED_OBJECT(
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UVERBS_OBJECT_COMP_CHANNEL,
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UVERBS_TYPE_ALLOC_FD(sizeof(struct ib_uverbs_completion_event_file),
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uverbs_completion_event_file_destroy_uobj,
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&uverbs_event_fops,
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"[infinibandevent]",
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O_RDONLY));
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DECLARE_UVERBS_NAMED_METHOD_DESTROY(
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UVERBS_METHOD_MW_DESTROY,
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UVERBS_ATTR_IDR(UVERBS_ATTR_DESTROY_MW_HANDLE,
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UVERBS_OBJECT_MW,
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UVERBS_ACCESS_DESTROY,
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UA_MANDATORY));
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DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_MW,
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UVERBS_TYPE_ALLOC_IDR(uverbs_free_mw),
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&UVERBS_METHOD(UVERBS_METHOD_MW_DESTROY));
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DECLARE_UVERBS_NAMED_METHOD_DESTROY(
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UVERBS_METHOD_AH_DESTROY,
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UVERBS_ATTR_IDR(UVERBS_ATTR_DESTROY_AH_HANDLE,
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UVERBS_OBJECT_AH,
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UVERBS_ACCESS_DESTROY,
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UA_MANDATORY));
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DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_AH,
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UVERBS_TYPE_ALLOC_IDR(uverbs_free_ah),
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&UVERBS_METHOD(UVERBS_METHOD_AH_DESTROY));
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DECLARE_UVERBS_NAMED_METHOD_DESTROY(
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UVERBS_METHOD_FLOW_DESTROY,
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UVERBS_ATTR_IDR(UVERBS_ATTR_DESTROY_FLOW_HANDLE,
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UVERBS_OBJECT_FLOW,
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UVERBS_ACCESS_DESTROY,
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UA_MANDATORY));
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DECLARE_UVERBS_NAMED_OBJECT(
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UVERBS_OBJECT_FLOW,
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UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uflow_object),
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uverbs_free_flow),
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&UVERBS_METHOD(UVERBS_METHOD_FLOW_DESTROY));
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DECLARE_UVERBS_NAMED_METHOD_DESTROY(
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UVERBS_METHOD_RWQ_IND_TBL_DESTROY,
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UVERBS_ATTR_IDR(UVERBS_ATTR_DESTROY_RWQ_IND_TBL_HANDLE,
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UVERBS_OBJECT_RWQ_IND_TBL,
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UVERBS_ACCESS_DESTROY,
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UA_MANDATORY));
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DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_RWQ_IND_TBL,
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UVERBS_TYPE_ALLOC_IDR(uverbs_free_rwq_ind_tbl),
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&UVERBS_METHOD(UVERBS_METHOD_RWQ_IND_TBL_DESTROY));
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DECLARE_UVERBS_NAMED_METHOD_DESTROY(
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UVERBS_METHOD_XRCD_DESTROY,
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UVERBS_ATTR_IDR(UVERBS_ATTR_DESTROY_XRCD_HANDLE,
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UVERBS_OBJECT_XRCD,
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UVERBS_ACCESS_DESTROY,
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UA_MANDATORY));
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DECLARE_UVERBS_NAMED_OBJECT(
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UVERBS_OBJECT_XRCD,
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UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uxrcd_object),
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uverbs_free_xrcd),
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&UVERBS_METHOD(UVERBS_METHOD_XRCD_DESTROY));
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DECLARE_UVERBS_NAMED_METHOD_DESTROY(
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UVERBS_METHOD_PD_DESTROY,
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UVERBS_ATTR_IDR(UVERBS_ATTR_DESTROY_PD_HANDLE,
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UVERBS_OBJECT_PD,
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UVERBS_ACCESS_DESTROY,
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UA_MANDATORY));
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DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_PD,
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UVERBS_TYPE_ALLOC_IDR(uverbs_free_pd),
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&UVERBS_METHOD(UVERBS_METHOD_PD_DESTROY));
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const struct uapi_definition uverbs_def_obj_intf[] = {
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UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_PD,
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UAPI_DEF_OBJ_NEEDS_FN(dealloc_pd)),
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UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_COMP_CHANNEL,
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UAPI_DEF_OBJ_NEEDS_FN(dealloc_pd)),
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UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_AH,
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UAPI_DEF_OBJ_NEEDS_FN(destroy_ah)),
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UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_MW,
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UAPI_DEF_OBJ_NEEDS_FN(dealloc_mw)),
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UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_FLOW,
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UAPI_DEF_OBJ_NEEDS_FN(destroy_flow)),
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UAPI_DEF_CHAIN_OBJ_TREE_NAMED(
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UVERBS_OBJECT_RWQ_IND_TBL,
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UAPI_DEF_OBJ_NEEDS_FN(destroy_rwq_ind_table)),
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UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_XRCD,
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UAPI_DEF_OBJ_NEEDS_FN(dealloc_xrcd)),
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{}
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};
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