diff options
Diffstat (limited to 'drivers/infiniband/core/uverbs.h')
| -rw-r--r-- | drivers/infiniband/core/uverbs.h | 185 |
1 files changed, 153 insertions, 32 deletions
diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h index 180b3d4765e..a283274a5a0 100644 --- a/drivers/infiniband/core/uverbs.h +++ b/drivers/infiniband/core/uverbs.h @@ -1,8 +1,9 @@ /* * 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 @@ -31,37 +32,76 @@ * 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. - * - * $Id: uverbs.h 2559 2005-06-06 19:43:16Z roland $ */ #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 <linux/completion.h> +#include <linux/cdev.h> #include <rdma/ib_verbs.h> +#include <rdma/ib_umem.h> #include <rdma/ib_user_verbs.h> +#define INIT_UDATA(udata, ibuf, obuf, ilen, olen) \ + do { \ + (udata)->inbuf = (const void __user *) (ibuf); \ + (udata)->outbuf = (void __user *) (obuf); \ + (udata)->inlen = (ilen); \ + (udata)->outlen = (olen); \ + } while (0) + +#define INIT_UDATA_BUF_OR_NULL(udata, ibuf, obuf, ilen, olen) \ + do { \ + (udata)->inbuf = (ilen) ? (const void __user *) (ibuf) : NULL; \ + (udata)->outbuf = (olen) ? (void __user *) (obuf) : NULL; \ + (udata)->inlen = (ilen); \ + (udata)->outlen = (olen); \ + } while (0) + +/* + * 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 { - int devnum; - struct cdev dev; - struct class_device class_dev; + struct kref ref; + int num_comp_vectors; + struct completion comp; + struct device *dev; struct ib_device *ib_dev; - int num_comp; + int devnum; + struct cdev cdev; + struct rb_root xrcd_tree; + struct mutex xrcd_tree_mutex; }; struct ib_uverbs_event_file { struct kref ref; + int is_async; struct ib_uverbs_file *uverbs_file; spinlock_t lock; - int fd; - int is_async; + int is_closed; wait_queue_head_t poll_wait; struct fasync_struct *async_queue; struct list_head event_list; @@ -69,30 +109,61 @@ struct ib_uverbs_event_file { 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_uxrcd_object { + struct ib_uobject uobject; + atomic_t refcnt; +}; + +struct ib_usrq_object { + struct ib_uevent_object uevent; + struct ib_uxrcd_object *uxrcd; }; -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; + struct ib_uxrcd_object *uxrcd; }; -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 spinlock_t ib_uverbs_idr_lock; extern struct idr ib_uverbs_pd_idr; extern struct idr ib_uverbs_mr_idr; extern struct idr ib_uverbs_mw_idr; @@ -100,41 +171,91 @@ extern struct idr ib_uverbs_ah_idr; extern struct idr ib_uverbs_cq_idr; extern struct idr ib_uverbs_qp_idr; extern struct idr ib_uverbs_srq_idr; +extern struct idr ib_uverbs_xrcd_idr; +extern struct idr ib_uverbs_rule_idr; + +void idr_remove_uobj(struct idr *idp, struct ib_uobject *uobj); + +struct file *ib_uverbs_alloc_event_file(struct ib_uverbs_file *uverbs_file, + int is_async); +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); +void ib_uverbs_dealloc_xrcd(struct ib_uverbs_device *dev, struct ib_xrcd *xrcd); -int ib_umem_get(struct ib_device *dev, struct ib_umem *mem, - void *addr, size_t size, int write); -void ib_umem_release(struct ib_device *dev, struct ib_umem *umem); -void ib_umem_release_on_close(struct ib_device *dev, struct ib_umem *umem); +struct ib_uverbs_flow_spec { + union { + union { + struct ib_uverbs_flow_spec_hdr hdr; + struct { + __u32 type; + __u16 size; + __u16 reserved; + }; + }; + struct ib_uverbs_flow_spec_eth eth; + struct ib_uverbs_flow_spec_ipv4 ipv4; + struct ib_uverbs_flow_spec_tcp_udp tcp_udp; + }; +}; #define IB_UVERBS_DECLARE_CMD(name) \ ssize_t ib_uverbs_##name(struct ib_uverbs_file *file, \ 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(alloc_mw); +IB_UVERBS_DECLARE_CMD(dealloc_mw); +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(open_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); +IB_UVERBS_DECLARE_CMD(create_xsrq); +IB_UVERBS_DECLARE_CMD(open_xrcd); +IB_UVERBS_DECLARE_CMD(close_xrcd); + +#define IB_UVERBS_DECLARE_EX_CMD(name) \ + int ib_uverbs_ex_##name(struct ib_uverbs_file *file, \ + struct ib_udata *ucore, \ + struct ib_udata *uhw) + +IB_UVERBS_DECLARE_EX_CMD(create_flow); +IB_UVERBS_DECLARE_EX_CMD(destroy_flow); #endif /* UVERBS_H */ |