/*
* Copyright (c) 2005 Topspin Communications. All rights reserved.
- * Copyright (c) 2005 Cisco Systems. All rights reserved.
+ * Copyright (c) 2005, 2006 Cisco Systems. All rights reserved.
* Copyright (c) 2005 Mellanox Technologies. All rights reserved.
* Copyright (c) 2005 Voltaire, Inc. All rights reserved.
+ * Copyright (c) 2005 PathScale, 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
#ifndef UVERBS_H
#define UVERBS_H
-/* Include device.h and fs.h until cdev.h is self-sufficient */
-#include <linux/fs.h>
-#include <linux/device.h>
-#include <linux/cdev.h>
#include <linux/kref.h>
#include <linux/idr.h>
+#include <linux/mutex.h>
-#include <ib_verbs.h>
-#include <ib_user_verbs.h>
+#include <rdma/ib_verbs.h>
+#include <rdma/ib_user_verbs.h>
+
+/*
+ * Our lifetime rules for these structs are the following:
+ *
+ * struct ib_uverbs_device: One reference is held by the module and
+ * released in ib_uverbs_remove_one(). Another reference is taken by
+ * ib_uverbs_open() each time the character special file is opened,
+ * and released in ib_uverbs_release_file() when the file is released.
+ *
+ * struct ib_uverbs_file: One reference is held by the VFS and
+ * released when the file is closed. Another reference is taken when
+ * an asynchronous event queue file is created and released when the
+ * event file is closed.
+ *
+ * struct ib_uverbs_event_file: One reference is held by the VFS and
+ * released when the file is closed. For asynchronous event files,
+ * another reference is held by the corresponding main context file
+ * and released when that file is closed. For completion event files,
+ * a reference is taken when a CQ is created that uses the file, and
+ * released when the CQ is destroyed.
+ */
struct ib_uverbs_device {
+ struct kref ref;
int devnum;
- struct cdev dev;
- struct class_device class_dev;
+ struct cdev *dev;
+ struct class_device *class_dev;
struct ib_device *ib_dev;
- int num_comp;
+ int num_comp_vectors;
};
struct ib_uverbs_event_file {
struct kref ref;
+ struct file *file;
struct ib_uverbs_file *uverbs_file;
spinlock_t lock;
- int fd;
int is_async;
wait_queue_head_t poll_wait;
struct fasync_struct *async_queue;
struct ib_uverbs_file {
struct kref ref;
+ struct mutex mutex;
struct ib_uverbs_device *device;
struct ib_ucontext *ucontext;
struct ib_event_handler event_handler;
- struct ib_uverbs_event_file async_file;
- struct ib_uverbs_event_file comp_file[1];
+ struct ib_uverbs_event_file *async_file;
};
-struct ib_uverbs_async_event {
- struct ib_uverbs_async_event_desc desc;
+struct ib_uverbs_event {
+ union {
+ struct ib_uverbs_async_event_desc async;
+ struct ib_uverbs_comp_event_desc comp;
+ } desc;
struct list_head list;
+ struct list_head obj_list;
+ u32 *counter;
};
-struct ib_uverbs_comp_event {
- struct ib_uverbs_comp_event_desc desc;
- struct list_head list;
+struct ib_uverbs_mcast_entry {
+ struct list_head list;
+ union ib_gid gid;
+ u16 lid;
+};
+
+struct ib_uevent_object {
+ struct ib_uobject uobject;
+ struct list_head event_list;
+ u32 events_reported;
};
-struct ib_uobject_mr {
- struct ib_uobject uobj;
- struct page *page_list;
- struct scatterlist *sg_list;
+struct ib_uqp_object {
+ struct ib_uevent_object uevent;
+ struct list_head mcast_list;
};
-extern struct semaphore ib_uverbs_idr_mutex;
+struct ib_ucq_object {
+ struct ib_uobject uobject;
+ struct ib_uverbs_file *uverbs_file;
+ struct list_head comp_list;
+ struct list_head async_list;
+ u32 comp_events_reported;
+ u32 async_events_reported;
+};
+
+extern struct mutex ib_uverbs_idr_mutex;
extern struct idr ib_uverbs_pd_idr;
extern struct idr ib_uverbs_mr_idr;
extern struct idr ib_uverbs_mw_idr;
extern struct idr ib_uverbs_qp_idr;
extern struct idr ib_uverbs_srq_idr;
+struct file *ib_uverbs_alloc_event_file(struct ib_uverbs_file *uverbs_file,
+ int is_async, int *fd);
+void ib_uverbs_release_event_file(struct kref *ref);
+struct ib_uverbs_event_file *ib_uverbs_lookup_comp_file(int fd);
+
+void ib_uverbs_release_ucq(struct ib_uverbs_file *file,
+ struct ib_uverbs_event_file *ev_file,
+ struct ib_ucq_object *uobj);
+void ib_uverbs_release_uevent(struct ib_uverbs_file *file,
+ struct ib_uevent_object *uobj);
+
void ib_uverbs_comp_handler(struct ib_cq *cq, void *cq_context);
void ib_uverbs_cq_event_handler(struct ib_event *event, void *context_ptr);
void ib_uverbs_qp_event_handler(struct ib_event *event, void *context_ptr);
void ib_uverbs_srq_event_handler(struct ib_event *event, void *context_ptr);
+void ib_uverbs_event_handler(struct ib_event_handler *handler,
+ struct ib_event *event);
int ib_umem_get(struct ib_device *dev, struct ib_umem *mem,
void *addr, size_t size, int write);
const char __user *buf, int in_len, \
int out_len)
-IB_UVERBS_DECLARE_CMD(query_params);
IB_UVERBS_DECLARE_CMD(get_context);
IB_UVERBS_DECLARE_CMD(query_device);
IB_UVERBS_DECLARE_CMD(query_port);
-IB_UVERBS_DECLARE_CMD(query_gid);
-IB_UVERBS_DECLARE_CMD(query_pkey);
IB_UVERBS_DECLARE_CMD(alloc_pd);
IB_UVERBS_DECLARE_CMD(dealloc_pd);
IB_UVERBS_DECLARE_CMD(reg_mr);
IB_UVERBS_DECLARE_CMD(dereg_mr);
+IB_UVERBS_DECLARE_CMD(create_comp_channel);
IB_UVERBS_DECLARE_CMD(create_cq);
+IB_UVERBS_DECLARE_CMD(resize_cq);
+IB_UVERBS_DECLARE_CMD(poll_cq);
+IB_UVERBS_DECLARE_CMD(req_notify_cq);
IB_UVERBS_DECLARE_CMD(destroy_cq);
IB_UVERBS_DECLARE_CMD(create_qp);
+IB_UVERBS_DECLARE_CMD(query_qp);
IB_UVERBS_DECLARE_CMD(modify_qp);
IB_UVERBS_DECLARE_CMD(destroy_qp);
+IB_UVERBS_DECLARE_CMD(post_send);
+IB_UVERBS_DECLARE_CMD(post_recv);
+IB_UVERBS_DECLARE_CMD(post_srq_recv);
+IB_UVERBS_DECLARE_CMD(create_ah);
+IB_UVERBS_DECLARE_CMD(destroy_ah);
IB_UVERBS_DECLARE_CMD(attach_mcast);
IB_UVERBS_DECLARE_CMD(detach_mcast);
IB_UVERBS_DECLARE_CMD(create_srq);
IB_UVERBS_DECLARE_CMD(modify_srq);
+IB_UVERBS_DECLARE_CMD(query_srq);
IB_UVERBS_DECLARE_CMD(destroy_srq);
#endif /* UVERBS_H */
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff