From ed3350f09d2c0234c59910ef1655cb9cbe17b0ca Mon Sep 17 00:00:00 2001 From: Stefan Metzmacher Date: Tue, 19 Aug 2025 09:34:27 +0200 Subject: [PATCH] smb: smbdirect: introduce smbdirect_socket.mr_io.* This will be used by the client and will allow us to move to common code... Cc: Steve French Cc: Tom Talpey Cc: Long Li Acked-by: Namjae Jeon Cc: linux-cifs@vger.kernel.org Cc: samba-technical@lists.samba.org Signed-off-by: Stefan Metzmacher Signed-off-by: Steve French --- fs/smb/common/smbdirect/smbdirect_socket.h | 45 ++++++++++++++++++++++ 1 file changed, 45 insertions(+) diff --git a/fs/smb/common/smbdirect/smbdirect_socket.h b/fs/smb/common/smbdirect/smbdirect_socket.h index f220891ab290d..5d403b1beceab 100644 --- a/fs/smb/common/smbdirect/smbdirect_socket.h +++ b/fs/smb/common/smbdirect/smbdirect_socket.h @@ -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 { -- 2.47.3