From: Stefan Metzmacher <metze@samba.org>
Date: Mon, 11 Aug 2025 14:03:00 +0000 (+0200)
Subject: smb: smbdirect: introduce smbdirect_socket.send_io.credits.{count,wait_queue}
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=2191b3471df53d87a46179b0c302c77c9ccfec11;p=users%2Fhch%2Fmisc.git

smb: smbdirect: introduce smbdirect_socket.send_io.credits.{count,wait_queue}

This will be shared between client and server soon.

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>
---

diff --git a/fs/smb/common/smbdirect/smbdirect_socket.h b/fs/smb/common/smbdirect/smbdirect_socket.h
index 1df43b7a87f4..7c2147a0244a 100644
--- a/fs/smb/common/smbdirect/smbdirect_socket.h
+++ b/fs/smb/common/smbdirect/smbdirect_socket.h
@@ -78,6 +78,14 @@ struct smbdirect_socket {
 			mempool_t		*pool;
 		} mem;
 
+		/*
+		 * The credit state for the send side
+		 */
+		struct {
+			atomic_t count;
+			wait_queue_head_t wait_queue;
+		} credits;
+
 		/*
 		 * The state about posted/pending sends
 		 */
@@ -163,6 +171,9 @@ static __always_inline void smbdirect_socket_init(struct smbdirect_socket *sc)
 
 	init_waitqueue_head(&sc->status_wait);
 
+	atomic_set(&sc->send_io.credits.count, 0);
+	init_waitqueue_head(&sc->send_io.credits.wait_queue);
+
 	atomic_set(&sc->send_io.pending.count, 0);
 	init_waitqueue_head(&sc->send_io.pending.dec_wait_queue);
 	init_waitqueue_head(&sc->send_io.pending.zero_wait_queue);