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smb: smbdirect: introduce smbdirect_socket.mr_io.*

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This will be used by the client and will allow us to move to
common code...

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Stefan Metzmacher 2025-08-19 09:34:27 +02:00 committed by Steve French
parent 41e5086905
commit ed3350f09d
1 changed files with 45 additions and 0 deletions
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45
fs/smb/common/smbdirect/smbdirect_socket.h
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@ -206,6 +206,44 @@ struct smbdirect_socket {
} reassembly;
} recv_io;
/*
* The state for Memory registrations on the client
*/
struct {
enum ib_mr_type type;
/*
* The list of free smbdirect_mr_io
* structures
*/
struct {
struct list_head list;
spinlock_t lock;
} all;
/*
* The number of available MRs ready for memory registration
*/
struct {
atomic_t count;
wait_queue_head_t wait_queue;
} ready;
/*
* The number of used MRs
*/
struct {
atomic_t count;
} used;
struct work_struct recovery_work;
/* Used by transport to wait until all MRs are returned */
struct {
wait_queue_head_t wait_queue;
} cleanup;
} mr_io;
/*
* The state for RDMA read/write requests on the server
*/
@ -269,6 +307,13 @@ static __always_inline void smbdirect_socket_init(struct smbdirect_socket *sc)
atomic_set(&sc->rw_io.credits.count, 0);
init_waitqueue_head(&sc->rw_io.credits.wait_queue);
spin_lock_init(&sc->mr_io.all.lock);
INIT_LIST_HEAD(&sc->mr_io.all.list);
atomic_set(&sc->mr_io.ready.count, 0);
init_waitqueue_head(&sc->mr_io.ready.wait_queue);
atomic_set(&sc->mr_io.used.count, 0);
init_waitqueue_head(&sc->mr_io.cleanup.wait_queue);
}
struct smbdirect_send_io {