Commit ec76e3cc authored by Stefan Metzmacher's avatar Stefan Metzmacher Committed by Steve French
Browse files

smb: smbdirect: introduce smbdirect_socket.recv_io.{posted,credits} 



This will be used by client and server soon in order to maintain
the state of posted recv_io messages and granted credits.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Acked-by: default avatarNamjae Jeon <linkinjeon@kernel.org>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Signed-off-by: default avatarStefan Metzmacher <metze@samba.org>
Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
parent b5a4242f

fs/smb/common/smbdirect/smbdirect_socket.h

+21 −0
Original line number Diff line number Diff line
@@ -135,6 +135,23 @@ struct smbdirect_socket { 
			spinlock_t lock;

		} free;



		/*

		 * The state for posted recv_io messages

		 * and the refill work struct.

		 */

		struct {

			atomic_t count;

			struct work_struct refill_work;

		} posted;



		/*

		 * The credit state for the recv side

		 */

		struct {

			u16 target;

			atomic_t count;

		} credits;



		/*

		 * The list of arrived non-empty smbdirect_recv_io

		 * structures
@@ -204,6 +221,10 @@ static __always_inline void smbdirect_socket_init(struct smbdirect_socket *sc) 
	INIT_LIST_HEAD(&sc->recv_io.free.list);

	spin_lock_init(&sc->recv_io.free.lock);



	atomic_set(&sc->recv_io.posted.count, 0);



	atomic_set(&sc->recv_io.credits.count, 0);



	INIT_LIST_HEAD(&sc->recv_io.reassembly.list);

	spin_lock_init(&sc->recv_io.reassembly.lock);

	init_waitqueue_head(&sc->recv_io.reassembly.wait_queue);