| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Matan Barak | 376 | 63.41% | 7 | 15.22% |
| Jason Gunthorpe | 156 | 26.31% | 23 | 50.00% |
| Roland Dreier | 30 | 5.06% | 3 | 6.52% |
| Yishai Hadas | 13 | 2.19% | 4 | 8.70% |
| Chengchang Tang | 4 | 0.67% | 1 | 2.17% |
| Leon Romanovsky | 3 | 0.51% | 2 | 4.35% |
| shamir rabinovitch | 3 | 0.51% | 1 | 2.17% |
| Sagi Grimberg | 2 | 0.34% | 1 | 2.17% |
| Steve Wise | 2 | 0.34% | 1 | 2.17% |
| Patrisious Haddad | 2 | 0.34% | 1 | 2.17% |
| Matthew Wilcox | 1 | 0.17% | 1 | 2.17% |
| Yotam Kenneth | 1 | 0.17% | 1 | 2.17% |
| Total | 593 | 46 |
/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ /* * Copyright (c) 2017, Mellanox Technologies inc. All rights reserved. */ #ifndef _UVERBS_TYPES_ #define _UVERBS_TYPES_ #include <linux/kernel.h> #include <rdma/ib_verbs.h> struct uverbs_obj_type; struct uverbs_api_object; enum rdma_lookup_mode { UVERBS_LOOKUP_READ, UVERBS_LOOKUP_WRITE, /* * Destroy is like LOOKUP_WRITE, except that the uobject is not * locked. uobj_destroy is used to convert a LOOKUP_DESTROY lock into * a LOOKUP_WRITE lock. */ UVERBS_LOOKUP_DESTROY, }; /* * The following sequences are valid: * Success flow: * alloc_begin * alloc_commit * [..] * Access flow: * lookup_get(exclusive=false) & uverbs_try_lock_object * lookup_put(exclusive=false) via rdma_lookup_put_uobject * Destruction flow: * lookup_get(exclusive=true) & uverbs_try_lock_object * remove_commit * remove_handle (optional) * lookup_put(exclusive=true) via rdma_lookup_put_uobject * * Allocate Error flow #1 * alloc_begin * alloc_abort * Allocate Error flow #2 * alloc_begin * remove_commit * alloc_abort * Allocate Error flow #3 * alloc_begin * alloc_commit (fails) * remove_commit * alloc_abort * * In all cases the caller must hold the ufile kref until alloc_commit or * alloc_abort returns. */ struct uverbs_obj_type_class { struct ib_uobject *(*alloc_begin)(const struct uverbs_api_object *obj, struct uverbs_attr_bundle *attrs); /* This consumes the kref on uobj */ void (*alloc_commit)(struct ib_uobject *uobj); /* This does not consume the kref on uobj */ void (*alloc_abort)(struct ib_uobject *uobj); struct ib_uobject *(*lookup_get)(const struct uverbs_api_object *obj, struct ib_uverbs_file *ufile, s64 id, enum rdma_lookup_mode mode); void (*lookup_put)(struct ib_uobject *uobj, enum rdma_lookup_mode mode); /* This does not consume the kref on uobj */ int __must_check (*destroy_hw)(struct ib_uobject *uobj, enum rdma_remove_reason why, struct uverbs_attr_bundle *attrs); void (*remove_handle)(struct ib_uobject *uobj); void (*swap_uobjects)(struct ib_uobject *obj_old, struct ib_uobject *obj_new); }; struct uverbs_obj_type { const struct uverbs_obj_type_class * const type_class; size_t obj_size; }; /* * Objects type classes which support a detach state (object is still alive but * it's not attached to any context need to make sure: * (a) no call through to a driver after a detach is called * (b) detach isn't called concurrently with context_cleanup */ struct uverbs_obj_idr_type { /* * In idr based objects, uverbs_obj_type_class points to a generic * idr operations. In order to specialize the underlying types (e.g. CQ, * QPs, etc.), we add destroy_object specific callbacks. */ struct uverbs_obj_type type; /* Free driver resources from the uobject, make the driver uncallable, * and move the uobject to the detached state. If the object was * destroyed by the user's request, a failure should leave the uobject * completely unchanged. */ int __must_check (*destroy_object)(struct ib_uobject *uobj, enum rdma_remove_reason why, struct uverbs_attr_bundle *attrs); }; struct ib_uobject *rdma_lookup_get_uobject(const struct uverbs_api_object *obj, struct ib_uverbs_file *ufile, s64 id, enum rdma_lookup_mode mode, struct uverbs_attr_bundle *attrs); void rdma_lookup_put_uobject(struct ib_uobject *uobj, enum rdma_lookup_mode mode); struct ib_uobject *rdma_alloc_begin_uobject(const struct uverbs_api_object *obj, struct uverbs_attr_bundle *attrs); void rdma_alloc_abort_uobject(struct ib_uobject *uobj, struct uverbs_attr_bundle *attrs, bool hw_obj_valid); void rdma_alloc_commit_uobject(struct ib_uobject *uobj, struct uverbs_attr_bundle *attrs); void rdma_assign_uobject(struct ib_uobject *to_uobj, struct ib_uobject *new_uobj, struct uverbs_attr_bundle *attrs); /* * uverbs_uobject_get is called in order to increase the reference count on * an uobject. This is useful when a handler wants to keep the uobject's memory * alive, regardless if this uobject is still alive in the context's objects * repository. Objects are put via uverbs_uobject_put. */ static inline void uverbs_uobject_get(struct ib_uobject *uobject) { kref_get(&uobject->ref); } void uverbs_uobject_put(struct ib_uobject *uobject); int uverbs_try_lock_object(struct ib_uobject *uobj, enum rdma_lookup_mode mode); struct uverbs_obj_fd_type { /* * In fd based objects, uverbs_obj_type_ops points to generic * fd operations. In order to specialize the underlying types (e.g. * completion_channel), we use fops, name and flags for fd creation. * destroy_object is called when the uobject is to be destroyed, * because the driver is removed or the FD is closed. */ struct uverbs_obj_type type; void (*destroy_object)(struct ib_uobject *uobj, enum rdma_remove_reason why); void (*release_cleanup)(struct ib_uobject *uobj); const struct file_operations *fops; const char *name; int flags; }; struct ib_uverbs_file { struct kref ref; struct ib_uverbs_device *device; struct mutex ucontext_lock; /* * ucontext must be accessed via ib_uverbs_get_ucontext() or with * ucontext_lock held */ struct ib_ucontext *ucontext; struct ib_uverbs_async_event_file *default_async_file; struct list_head list; /* * To access the uobjects list hw_destroy_rwsem must be held for write * OR hw_destroy_rwsem held for read AND uobjects_lock held. * hw_destroy_rwsem should be called across any destruction of the HW * object of an associated uobject. */ struct rw_semaphore hw_destroy_rwsem; spinlock_t uobjects_lock; struct list_head uobjects; struct mutex umap_lock; struct list_head umaps; struct page *disassociate_page; struct xarray idr; struct mutex disassociation_lock; }; extern const struct uverbs_obj_type_class uverbs_idr_class; extern const struct uverbs_obj_type_class uverbs_fd_class; int uverbs_uobject_fd_release(struct inode *inode, struct file *filp); int uverbs_uobject_release(struct ib_uobject *uobj); #define UVERBS_BUILD_BUG_ON(cond) (sizeof(char[1 - 2 * !!(cond)]) - \ sizeof(char)) #define UVERBS_TYPE_ALLOC_FD_RELEASE(_obj_size, _destroy_object, \ _release_cleanup, _fops, _name, _flags) \ ((&((const struct uverbs_obj_fd_type) \ {.type = { \ .type_class = &uverbs_fd_class, \ .obj_size = (_obj_size) + \ UVERBS_BUILD_BUG_ON((_obj_size) < \ sizeof(struct ib_uobject)), \ }, \ .destroy_object = _destroy_object, \ .release_cleanup = _release_cleanup, \ .fops = _fops, \ .name = _name, \ .flags = _flags}))->type) #define UVERBS_TYPE_ALLOC_FD(_obj_size, _destroy_object, _fops, _name, _flags) \ UVERBS_TYPE_ALLOC_FD_RELEASE(_obj_size, _destroy_object, NULL, \ _fops, _name, _flags) #define UVERBS_TYPE_ALLOC_IDR_SZ(_size, _destroy_object) \ ((&((const struct uverbs_obj_idr_type) \ {.type = { \ .type_class = &uverbs_idr_class, \ .obj_size = (_size) + \ UVERBS_BUILD_BUG_ON((_size) < \ sizeof(struct ib_uobject)) \ }, \ .destroy_object = _destroy_object,}))->type) #define UVERBS_TYPE_ALLOC_IDR(_destroy_object) \ UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_uobject), \ _destroy_object) #endif