Commit Graph

1383823 Commits

Author SHA1 Message Date
Stefan Metzmacher
c4709e61ef smb: client: defer calling ib_alloc_pd() after we are connected
The protection domain is not needed until we're connected.

This makes further changes easier to follow...

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>
2025-09-28 18:29:51 -05:00
Stefan Metzmacher
17a6bc60f4 smb: client: allocate smbdirect workqueue at the beginning of _smbd_get_connection()
This will simplify further changes when moving 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>
2025-09-28 18:29:51 -05:00
Stefan Metzmacher
a437c9cebc smb: client: make consitent use of spin_lock_irq{save,restore}() in smbdirect.c
There is a mix of using spin_lock(), spin_lock_irq() and
spin_lock_irqsave() and it seems at least enqueue_reassembly() was wrong
in using just spin_lock() as it's called via recv_done() from a SOFTIRQ
as we're using IB_POLL_SOFTIRQ.

And Documentation/kernel-hacking/locking.rst section
"Cheat Sheet For Locking" says:

-  Otherwise (== data can be touched in an interrupt), use
   spin_lock_irqsave() and
   spin_unlock_irqrestore().

So in order to keep it simple and safe we use that version
now. It will help merging functions into common code and
have consistent locking in all cases.

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>
2025-09-28 18:29:51 -05:00
Stefan Metzmacher
1b128ec1c7 smb: client: let smbd_{destroy,disconnect_rdma_{work,connection}}() wake up all wait queues
This is important in order to let all waiters notice a broken connection.

We also go via smbd_disconnect_rdma_{work,connection}() for broken
connections.

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>
2025-09-28 18:29:51 -05:00
Stefan Metzmacher
0cb7ed37af smb: client: let smbd_disconnect_rdma_connection() disable all work but disconnect_work
There's no point run these if we already know the connection
is broken.

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>
2025-09-28 18:29:51 -05:00
Stefan Metzmacher
98a1cdca35 smb: client: fill in smbdirect_socket.first_error on error
For now we just use -ECONNABORTED, but it will get more detailed
later.

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>
2025-09-28 18:29:51 -05:00
Stefan Metzmacher
ffbfc73e84 smb: client: let smbd_disconnect_rdma_connection() set SMBDIRECT_SOCKET_ERROR...
smbd_disconnect_rdma_connection() should turn the status into
an error state instead of leaving it as is until
smbd_disconnect_rdma_work() is running.

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>
2025-09-28 18:29:51 -05:00
Stefan Metzmacher
114347dad6 smb: client: remove unused struct smbdirect_socket argument of smbd_iter_to_mr()
This will make it easier to move function to the common code
in future.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:51 -05:00
Stefan Metzmacher
4c4b1d1122 smb: client: pass struct smbdirect_socket to get_mr()
This will make it easier to move function to the common code
in future.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:51 -05:00
Stefan Metzmacher
2c6b999a90 smb: client: pass struct smbdirect_socket to smbd_negotiate()
This will make it easier to move function to the common code
in future.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:50 -05:00
Stefan Metzmacher
c612e60de5 smb: client: pass struct smbdirect_socket to smbd_post_send_negotiate_req()
This will make it easier to move function to the common code
in future.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:50 -05:00
Stefan Metzmacher
0a5dc5fc7c smb: client: pass struct smbdirect_socket to smbd_ia_open()
This will make it easier to move function to the common code
in future.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:50 -05:00
Stefan Metzmacher
2569536b0c smb: client: pass struct smbdirect_socket to smbd_create_id()
This will make it easier to move function to the common code
in future.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:50 -05:00
Stefan Metzmacher
94a0e794b7 smb: client: pass struct smbdirect_socket to smbd_qp_async_error_upcall()
This will make it easier to move function to the common code
in future.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:50 -05:00
Stefan Metzmacher
e3f095cca6 smb: client: pass struct smbdirect_socket to smbd_conn_upcall()
This will make it easier to move function to the common code
in future.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:50 -05:00
Stefan Metzmacher
05bd1378c8 smb: client: pass struct smbdirect_socket to smbd_post_send_full_iter()
This will make it easier to move function to the common code
in future.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:50 -05:00
Stefan Metzmacher
d76e8c7f54 smb: client: pass struct smbdirect_socket to smbd_post_send_empty()
This will make it easier to move function to the common code
in future.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:50 -05:00
Stefan Metzmacher
46b8fe2bd1 smb: client: pass struct smbdirect_socket to smbd_post_send_iter()
This will make it easier to move function to the common code
in future.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:50 -05:00
Stefan Metzmacher
8cead970e3 smb: client: pass struct smbdirect_socket to manage_keep_alive_before_sending()
This will make it easier to move function to the common code
in future.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:50 -05:00
Stefan Metzmacher
8a9919b2bf smb: client: pass struct smbdirect_socket to smbd_post_send()
This will make it easier to move function to the common code
in future.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:50 -05:00
Stefan Metzmacher
869bb7284f smb: client: pass struct smbdirect_socket to manage_credits_prior_sending()
This will make it easier to move function to the common code
in future.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:50 -05:00
Stefan Metzmacher
be8602d47d smb: client: pass struct smbdirect_socket to smbd_post_recv()
This will make it easier to move function to the common code
in future.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:50 -05:00
Stefan Metzmacher
c7e4d5facb smb: client: pass struct smbdirect_socket to smbd_disconnect_rdma_connection()
This will make it easier to move function to the common code
in future.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:50 -05:00
Stefan Metzmacher
a8a45d4c95 smb: client: pass struct smbdirect_socket to {allocate,destroy}_mr_list()
This will make it easier to move function to the common code
in future.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:50 -05:00
Stefan Metzmacher
419fc78fd8 smb: client: pass struct smbdirect_socket to {enqueue,_get_first}_reassembly()
This will make it easier to move function to the common code
in future.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:50 -05:00
Stefan Metzmacher
b8a5d5d1aa smb: client: pass struct smbdirect_socket to {allocate,destroy}_caches_and_workqueue()
This will make it easier to move function to the common code
in future.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:50 -05:00
Stefan Metzmacher
163e0ff8c6 smb: client: pass struct smbdirect_socket to {allocate,destroy}_receive_buffers()
This will make it easier to move function to the common code
in future.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:50 -05:00
Stefan Metzmacher
f6de7482b4 smb: client: pass struct smbdirect_socket to {get,put}_receive_buffer()
This will make it easier to move function to the common code
in future.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:50 -05:00
Stefan Metzmacher
02e6f092c7 smb: client: make use of smbdirect_socket.mr_io
Now struct smbd_connection only contains struct smbdirect_socket,
this is an important step towards having common functions as well.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:50 -05:00
Stefan Metzmacher
9a52e3b0d6 smb: client: make use of smbdirect_socket_parameters.max_frmr_depth
This make it easier to have common code later.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:50 -05:00
Stefan Metzmacher
f454f36cd0 smb: client: make use of struct smbdirect_mr_io
This will allow us to move to common functions in future too.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:50 -05:00
Stefan Metzmacher
5f84b0819a smb: client: add and use smbd_get_parameters()
In future struct smbdirect_socket_parameters will be the only
public structure for the smb layer. This prepares this...

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:49 -05:00
Stefan Metzmacher
40212a27c7 smb: client: make use of smbdirect_socket.workqueue
This will simplify the move to common code...

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:49 -05:00
Stefan Metzmacher
a8efb796db smb: client: move rdma_readwrite_threshold from smbd_connection to TCP_Server_Info
This belongs to the SMB layer not to the transport layer, it
just uses the negotiated transport parameters to adjust the
value if needed.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:49 -05:00
Stefan Metzmacher
ddfcb069c1 smb: client: make use of smbdirect_socket.statistics
This will allow us to use common functions soon.

Note this generates the following warnings from
scripts/checkpatch.pl --quiet:

 WARNING: quoted string split across lines
 #59: FILE: fs/smb/client/cifs_debug.c:481:
 +               seq_printf(m, "\nDebug count_get_receive_buffer: %llu "
 +                       "count_put_receive_buffer: %llu count_send_empty: %llu",

 WARNING: quoted string split across lines
 #66: FILE: fs/smb/client/cifs_debug.c:486:
                 seq_printf(m, "\nRead Queue "
 +                       "count_enqueue_reassembly_queue: %llu "

 WARNING: quoted string split across lines
 #67: FILE: fs/smb/client/cifs_debug.c:487:
 +                       "count_enqueue_reassembly_queue: %llu "
 +                       "count_dequeue_reassembly_queue: %llu "

 total: 0 errors, 3 warnings, 83 lines checked
 scripts/checkpatch.pl: FAILED

But I left them in there, because it matches the code
arround it...

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:49 -05:00
Stefan Metzmacher
2449c7cc9b smb: client: remove unused smbd_connection.count_reassembly_queue
This basically represents the same information as
sc->recv_io.reassembly.queue_length.

The only thing that's different is that
smbd_connection.count_reassembly_queue was updated in each
loop step, while sc->recv_io.reassembly.queue_length is only
updated once after the loop in smbd_recv.
Also sc->recv_io.reassembly.queue_length is updated under
a spinlock.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:49 -05:00
Stefan Metzmacher
87d03d6c82 smb: client: remove unused smbd_connection->protocol
There is only one protocol version for smbdirect yet and
this variable is write only.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:49 -05:00
Stefan Metzmacher
4dc536a135 smb: client: make use of smbdirect_socket.idle.{keepalive,immediate_work,timer_work}
This will allow client and server to use the common structures in order
to share common functions later.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:49 -05:00
Stefan Metzmacher
ac31755c7a smb: client: fix smbdirect keep alive handling to match the documentation
We setup the first timer with the negotiate timeout and set
KEEP_ALIVE_PENDING, so that the expired timer disconnects.

On every incoming message we need to reset the timer to the keepalive
interval (120s).

On SMBDIRECT_FLAG_RESPONSE_REQUESTED we need to schedule a response
instead of setting KEEP_ALIVE_PENDING. Doing both would mean
we would also set SMBDIRECT_FLAG_RESPONSE_REQUESTED in that
response. If both ends would do that we'd play ping pong in
a busy loop.

If we move to KEEP_ALIVE_SENT and send the keepalive request
with SMBDIRECT_FLAG_RESPONSE_REQUESTED, we need to setup the
timer with keepalive timeout (5s) in order to disconnect
if no incoming message reset the timer.

The fired timer sets KEEP_ALIVE_PENDING and also
setup timer with keepalive timeout (5s) in order to disconnect
if no incoming message reset the timer.
We do that before queueing the send_immediate_work
and have that timer in case we didn't reach the send code
that typically sets the timer to keepalive timeout.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:49 -05:00
Stefan Metzmacher
1b2c46cdb7 smb: client: send empty packets via send_immediate_work
This is what the server already does and it makes
refactoring for common structures and functions much easier.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:49 -05:00
Stefan Metzmacher
ea5a4e31ab smb: client: make use of smbdirect_socket.rdma.legacy_iwarp
Currently it's write only for the client, but it will likely be use
for debugging later.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:49 -05:00
Stefan Metzmacher
dd53b45fc8 smb: client: make use of smbdirect_socket_parameters.{initiator_depth,responder_resources}
This will make it easier to specify these from the outside of the core
code first and then negotiate the value with the peer.

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>
2025-09-28 18:29:49 -05:00
Stefan Metzmacher
1f2ff73a23 smb: client: make use of smbdirect_socket_parameters.{resolve_{addr,route},rdma_connect,negotiate}_timeout_msec
This will make future changes to these values much saner.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:49 -05:00
Stefan Metzmacher
14b6088dd9 smb: client: fill smbdirect_socket_parameters at the beginning and use the values from there
This is what we should do and it also simplifies the following changes.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:49 -05:00
Stefan Metzmacher
d3e743b514 smb: client: remove useless smbd_connection.send_immediate
We always set it to true before having an if statement that checks it is
true...

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:49 -05:00
Stefan Metzmacher
c7316ec2d5 smb: client: make use of smbdirect_socket.recv_io.{posted,credits}
This will make it possible to introduce common helper functions
in future.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:49 -05:00
Stefan Metzmacher
5fb9b459b3 smb: client: count the number of posted recv_io messages in order to calculated credits
(At least for me) the logic maintaining the count of posted
recv_io messages and the count of granted credits is much easier
to understand.

From there we can easily calculate the number of new_credits we'll
grant to the peer in outgoing send_io messages.

This will simplify the move to common logic that can be
shared between client and server in the following patches.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:49 -05:00
Stefan Metzmacher
9219f8cac2 smb: client: limit the range of info->receive_credit_target
This simplifies further changes...

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:49 -05:00
Stefan Metzmacher
1a07031fdd smb: client: remove info->wait_receive_queues handling in smbd_destroy()
We already call ib_drain_qp() before, which is an sync operation
that only returns in the queues are fully drained.

ib_drain_qp() completes pending requests with IB_WC_WR_FLUSH_ERR
so we have already called put_receive_buffer().

So all smbdirect_recv_io objects are either in the
smbdirect_socket.recv_io.free.list or
smbdirect_socket.recv_io.reassembly.list.

Then we explicitly iterate smbdirect_socket.recv_io.reassembly.list
and call put_receive_buffer(), so every object is
in smbdirect_socket.recv_io.free.list.

It means info->count_receive_queue == sp->recv_credit_max was
already true and calling wait_event(info->wait_receive_queues...
is pointless.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:49 -05:00
Stefan Metzmacher
a8e970358b smb: client: make use of ib_wc_status_msg() and skip IB_WC_WR_FLUSH_ERR logging
There's no need to get log message for every IB_WC_WR_FLUSH_ERR
completion, but any other error should be logged at level ERR.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:49 -05:00