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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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abdf119b4d
Add support for O_ASYNC notifications on userspace verbs completion and asynchronous event file descriptors. Signed-off-by: Gleb Natapov <glebn@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
134 lines
4.2 KiB
C
134 lines
4.2 KiB
C
/*
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* Copyright (c) 2005 Topspin Communications. All rights reserved.
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* Copyright (c) 2005 Cisco Systems. 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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* $Id: uverbs.h 2559 2005-06-06 19:43:16Z roland $
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*/
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#ifndef UVERBS_H
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#define UVERBS_H
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/* Include device.h and fs.h until cdev.h is self-sufficient */
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#include <linux/fs.h>
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#include <linux/device.h>
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#include <linux/cdev.h>
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#include <linux/kref.h>
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#include <linux/idr.h>
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#include <ib_verbs.h>
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#include <ib_user_verbs.h>
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struct ib_uverbs_device {
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int devnum;
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struct cdev dev;
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struct class_device class_dev;
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struct ib_device *ib_dev;
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int num_comp;
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};
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struct ib_uverbs_event_file {
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struct kref ref;
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struct ib_uverbs_file *uverbs_file;
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spinlock_t lock;
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int fd;
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int is_async;
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wait_queue_head_t poll_wait;
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struct fasync_struct *async_queue;
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struct list_head event_list;
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};
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struct ib_uverbs_file {
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struct kref ref;
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struct ib_uverbs_device *device;
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struct ib_ucontext *ucontext;
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struct ib_event_handler event_handler;
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struct ib_uverbs_event_file async_file;
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struct ib_uverbs_event_file comp_file[1];
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};
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struct ib_uverbs_async_event {
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struct ib_uverbs_async_event_desc desc;
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struct list_head list;
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};
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struct ib_uverbs_comp_event {
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struct ib_uverbs_comp_event_desc desc;
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struct list_head list;
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};
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struct ib_uobject_mr {
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struct ib_uobject uobj;
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struct page *page_list;
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struct scatterlist *sg_list;
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};
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extern struct semaphore ib_uverbs_idr_mutex;
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extern struct idr ib_uverbs_pd_idr;
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extern struct idr ib_uverbs_mr_idr;
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extern struct idr ib_uverbs_mw_idr;
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extern struct idr ib_uverbs_ah_idr;
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extern struct idr ib_uverbs_cq_idr;
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extern struct idr ib_uverbs_qp_idr;
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void ib_uverbs_comp_handler(struct ib_cq *cq, void *cq_context);
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void ib_uverbs_cq_event_handler(struct ib_event *event, void *context_ptr);
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void ib_uverbs_qp_event_handler(struct ib_event *event, void *context_ptr);
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int ib_umem_get(struct ib_device *dev, struct ib_umem *mem,
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void *addr, size_t size, int write);
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void ib_umem_release(struct ib_device *dev, struct ib_umem *umem);
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void ib_umem_release_on_close(struct ib_device *dev, struct ib_umem *umem);
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#define IB_UVERBS_DECLARE_CMD(name) \
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ssize_t ib_uverbs_##name(struct ib_uverbs_file *file, \
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const char __user *buf, int in_len, \
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int out_len)
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IB_UVERBS_DECLARE_CMD(query_params);
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IB_UVERBS_DECLARE_CMD(get_context);
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IB_UVERBS_DECLARE_CMD(query_device);
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IB_UVERBS_DECLARE_CMD(query_port);
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IB_UVERBS_DECLARE_CMD(query_gid);
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IB_UVERBS_DECLARE_CMD(query_pkey);
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IB_UVERBS_DECLARE_CMD(alloc_pd);
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IB_UVERBS_DECLARE_CMD(dealloc_pd);
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IB_UVERBS_DECLARE_CMD(reg_mr);
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IB_UVERBS_DECLARE_CMD(dereg_mr);
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IB_UVERBS_DECLARE_CMD(create_cq);
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IB_UVERBS_DECLARE_CMD(destroy_cq);
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IB_UVERBS_DECLARE_CMD(create_qp);
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IB_UVERBS_DECLARE_CMD(modify_qp);
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IB_UVERBS_DECLARE_CMD(destroy_qp);
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IB_UVERBS_DECLARE_CMD(attach_mcast);
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IB_UVERBS_DECLARE_CMD(detach_mcast);
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#endif /* UVERBS_H */
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