diff options
Diffstat (limited to 'include/rdma/restrack.h')
-rw-r--r-- | include/rdma/restrack.h | 75 |
1 files changed, 21 insertions, 54 deletions
diff --git a/include/rdma/restrack.h b/include/rdma/restrack.h index 2638fa7cd702..ecf3c7702a4f 100644 --- a/include/rdma/restrack.h +++ b/include/rdma/restrack.h @@ -7,12 +7,12 @@ #define _RDMA_RESTRACK_H_ #include <linux/typecheck.h> -#include <linux/rwsem.h> #include <linux/sched.h> #include <linux/kref.h> #include <linux/completion.h> #include <linux/sched/task.h> #include <uapi/rdma/rdma_netlink.h> +#include <linux/xarray.h> /** * enum rdma_restrack_type - HW objects to track @@ -39,35 +39,16 @@ enum rdma_restrack_type { */ RDMA_RESTRACK_MR, /** + * @RDMA_RESTRACK_CTX: Verbs contexts (CTX) + */ + RDMA_RESTRACK_CTX, + /** * @RDMA_RESTRACK_MAX: Last entry, used for array dclarations */ RDMA_RESTRACK_MAX }; -#define RDMA_RESTRACK_HASH_BITS 8 -struct rdma_restrack_entry; - -/** - * struct rdma_restrack_root - main resource tracking management - * entity, per-device - */ -struct rdma_restrack_root { - /* - * @rwsem: Read/write lock to protect lists - */ - struct rw_semaphore rwsem; - /** - * @hash: global database for all resources per-device - */ - DECLARE_HASHTABLE(hash, RDMA_RESTRACK_HASH_BITS); - /** - * @fill_res_entry: driver-specific fill function - * - * Allows rdma drivers to add their own restrack attributes. - */ - int (*fill_res_entry)(struct sk_buff *msg, - struct rdma_restrack_entry *entry); -}; +struct ib_device; /** * struct rdma_restrack_entry - metadata per-entry @@ -105,42 +86,25 @@ struct rdma_restrack_entry { */ const char *kern_name; /** - * @node: hash table entry - */ - struct hlist_node node; - /** * @type: various objects in restrack database */ enum rdma_restrack_type type; + /** + * @user: user resource + */ + bool user; + /** + * @id: ID to expose to users + */ + u32 id; }; -/** - * rdma_restrack_init() - initialize resource tracking - * @res: resource tracking root - */ -void rdma_restrack_init(struct rdma_restrack_root *res); - -/** - * rdma_restrack_clean() - clean resource tracking - * @res: resource tracking root - */ -void rdma_restrack_clean(struct rdma_restrack_root *res); - -/** - * rdma_restrack_count() - the current usage of specific object - * @res: resource entry - * @type: actual type of object to operate - * @ns: PID namespace - */ -int rdma_restrack_count(struct rdma_restrack_root *res, +int rdma_restrack_count(struct ib_device *dev, enum rdma_restrack_type type, struct pid_namespace *ns); -/** - * rdma_restrack_add() - add object to the reource tracking database - * @res: resource entry - */ -void rdma_restrack_add(struct rdma_restrack_entry *res); +void rdma_restrack_kadd(struct rdma_restrack_entry *res); +void rdma_restrack_uadd(struct rdma_restrack_entry *res); /** * rdma_restrack_del() - delete object from the reource tracking database @@ -155,7 +119,7 @@ void rdma_restrack_del(struct rdma_restrack_entry *res); */ static inline bool rdma_is_kernel_res(struct rdma_restrack_entry *res) { - return !res->task; + return !res->user; } /** @@ -188,4 +152,7 @@ int rdma_nl_put_driver_u32_hex(struct sk_buff *msg, const char *name, int rdma_nl_put_driver_u64(struct sk_buff *msg, const char *name, u64 value); int rdma_nl_put_driver_u64_hex(struct sk_buff *msg, const char *name, u64 value); +struct rdma_restrack_entry *rdma_restrack_get_byid(struct ib_device *dev, + enum rdma_restrack_type type, + u32 id); #endif /* _RDMA_RESTRACK_H_ */ |