Commit Graph

1383782 Commits

Author SHA1 Message Date
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
Stefan Metzmacher
02548c477a smb: client: queue post_recv_credits_work also if the peer raises the credit target
This is already handled in the server, but currently it done
in a very complex way there. So we do it much simpler.

Note that put_receive_buffer() will take care of it
in case data_length is 0.

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
b0aa92a229 smb: client: make sure smbd_disconnect_rdma_work() doesn't run after smbd_destroy() took over
If we're already disconnecting we don't need to queue the
disconnect_work again. disable_work() turns the next queue_work()
into a no-op.

Also let smbd_destroy() cancel(and disable) queued disconnect_work and
call smbd_disconnect_rdma_work() inline.

The makes it more obvious that disconnect_work is never queued
again after smbd_destroy() called smbd_disconnect_rdma_work().

It also means we have a single place to call rdma_disconnect().

While there we better also disable all other [delayed_]work.

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
9b1a6b7583 smb: client: make use of smbdirect_socket.send_io.credits.{count,wait_queue}
This will be used by the server too and will allow to create
common helper functions.

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
ca48841de9 smb: client: make use of smbdirect_socket.send_io.pending.{count,{dec,zero}_wait_queue}
This will be used by the server too and will allow to create
common helper functions.

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 18:29:48 -05:00
Stefan Metzmacher
a51c67db2c smb: client: make use of smbdirect_socket.disconnect_work
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 18:29:48 -05:00
Stefan Metzmacher
7360778b6f smb: client: make use of smbdirect_socket_init()
It's much safer to initialize the whole structure at
the beginning than doing it all over the place
and then miss to move it if code 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 18:29:48 -05:00
Stefan Metzmacher
5a0d5ae65c smb: client: make only use of wake_up[_all]() in smbdirect.c
wake_up_interruptible[_all]() doesn't wake up tasks waiting
with wait_event().

So we better wake_up[_all]() in order to wake up all tasks in order
to simplify the logic.

As we currently don't use any wait_event_*_exclusive() it
doesn't really matter if we use wake_up() or wake_up_all().
But in this patch I try to use wake_up() for expected situations
and wake_up_all() for situations of a broken connection.
So don't need to adjust things in future when we
may use wait_event_*_exclusive() in order to wake up
only one process that should make progress.

Changing the wait_event_*() code in order to keep
wait_event(), wait_event_interruptible() and
wait_event_interruptible_timeout() or
changing them to wait_event_killable(),
wait_event_killable_timeout(),
wait_event_killable_exclusive()
is something to think about in a future patch.

The goal here is to avoid that some tasks are not
woken and freeze forever.

Also note that this patch only changes the existing
wake_up*() calls. Adding more wake_up*() calls for
other wait queues is also deferred to a future patch.

Link: https://lore.kernel.org/linux-cifs/13851363-0dc9-465c-9ced-3ede4904eef0@samba.org/T/#t
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 18:29:48 -05:00
Stefan Metzmacher
d9140ef074 smb: client: make use of smbdirect_socket.status_wait
This will allow us to have common helper functions soon.

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 18:29:48 -05:00
Stefan Metzmacher
4ff3fa4e4a smb: client: use status_wait and SMBDIRECT_SOCKET_RESOLVE_{ADDR,ROUTE}_RUNNING for completion
We can use the state change from
SMBDIRECT_SOCKET_RESOLVE_{ADDR,ROUTE}_RUNNING
to the next state in order to wake the caller to do the next step.

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 18:29:48 -05:00
Stefan Metzmacher
00e4c7a87d smb: client: use status_wait and SMBDIRECT_SOCKET_NEGOTIATE_RUNNING for completion
We can use the state change from SMBDIRECT_SOCKET_NEGOTIATE_RUNNING to
SMBDIRECT_SOCKET_CONNECTED or SMBDIRECT_SOCKET_NEGOTIATE_FAILED in order
to notify the caller if the negotiation is over.

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 18:29:48 -05:00
Stefan Metzmacher
afff34dc02 smb: client: adjust smbdirect related output of cifs_debug_data_proc_show()
For the reader it is not obvious that the counter values are displayed
in hex as there's no leading '0x' before '%x'.

So changed them to %u instead and added '0x' for non-counter values
and also a string for the status.

Note this generates some checkpatch warnings like this:

 WARNING: quoted string split across lines
 #45: FILE: fs/smb/client/cifs_debug.c:460:
 +               seq_printf(m, "\nSMBDirect protocol version: 0x%x "
 +                       "transport status: %s (%u)",

But I'll leave this is the current style in the
related 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 18:29:48 -05:00
Stefan Metzmacher
f5b893edde smb: smbdirect: introduce smbdirect_socket.first_error
This will be used when a connected conection gets the first error.

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 18:29:48 -05:00
Stefan Metzmacher
cc678b8a89 smb: client/smbdirect: introduce SMBDIRECT_SOCKET_ERROR
This will be used to turn SMBDIRECT_SOCKET_CONNECTED into an
error within smbd_disconnect_rdma_connection() on the client
and smb_direct_disconnect_rdma_connection() on the server.

We do this in a single commit with the client as otherwise it
won't build because the enum value is not handled in the
switch statement.

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 18:29:48 -05:00
Stefan Metzmacher
58dfba8a2d smb: client/smbdirect: replace SMBDIRECT_SOCKET_CONNECTING with more detailed states
The process of reaching a functional connection represented by
SMBDIRECT_SOCKET_CONNECTED, is more complex than using a single
SMBDIRECT_SOCKET_CONNECTING state.

This will allow us to remove a lot of special variables and
completions in the following commits.

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 18:29:48 -05:00
Stefan Metzmacher
ef71f1e046 smb: client: fix sending the iwrap custom IRD/ORD negotiation messages
Do a real negotiation and check the servers initiator_depth and
responder_resources.

This should use big endian in order to be useful.
I have captures of windows clients showing this.

The fact that we used little endian up to now
means that we sent very large numbers and the
negotiation with the server truncated them to the
server limits.

Note the reason why this uses u8 for
initiator_depth and responder_resources is
that the rdma layer also uses it.

The inconsitency regarding the initiator_depth
and responder_resources values being reversed
for iwarp devices in RDMA_CM_EVENT_ESTABLISHED
should also be fixed later, but for now we should
fix it.

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
Cc: linux-rdma@vger.kernel.org
Fixes: c739858334 ("CIFS: SMBD: Implement RDMA memory registration")
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-09-28 18:29:48 -05:00
Stefan Metzmacher
6920b4ad49 smb: smbdirect: let smbdirect_socket_init() initialize all [delayed_]work_structs as disabled
This safer to start with and allows common code not care about if the
caller uses these or not. E.g. sc->mr_io.recovery_work is only used
on the client...

Note disable_[delayed_]work_sync() requires a valid function pointer
in INIT_[DELAYED_]WORK(). The non _sync() version don't require it,
but as we need to use the _sync() version on cleanup we better use
it here too, it won't block anyway here...

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 18:29:48 -05:00
Stefan Metzmacher
ed3350f09d 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 <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 18:29:48 -05:00
Stefan Metzmacher
41e5086905 smb: smbdirect: introduce smbdirect_socket_parameters.max_frmr_depth
This will be used by the client...

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 18:29:48 -05:00
Stefan Metzmacher
02c39c0121 smb: smbdirect: introduce struct smbdirect_mr_io
This will be used by the client in order to maintain
memory registrations.

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 18:29:48 -05:00
Stefan Metzmacher
6c5b0f9253 smb: smbdirect: introduce smbdirect_socket.workqueue
The client currently used a per socket workqueue
because it can block in a work function
waiting for credits.

So we use a per socket pointer in order to prepare
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 18:29:48 -05:00
Stefan Metzmacher
6889d2f5ca smb: smbdirect: introduce smbdirect_socket.statistics
These will be used by the client and maybe shared code in future.

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 18:29:48 -05:00
Stefan Metzmacher
89bae05f9d smb: smbdirect: introduce 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>
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 18:29:48 -05:00
Stefan Metzmacher
2baedb2026 smb: smbdirect: introduce smbdirect_socket.rdma.legacy_iwarp
This will be used by 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>
2025-09-28 18:29:48 -05:00
Stefan Metzmacher
8e34a76387 smb: smbdirect: introduce smbdirect_socket_parameters.{initiator_depth,responder_resources}
This will make it easier to specify these from the outside of the core
code 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 18:29:48 -05:00
Stefan Metzmacher
932fa15c37 smb: smbdirect: introduce smbdirect_socket_parameters.{resolve_{addr,route},rdma_connect,negotiate}_timeout_msec
These will be used instead of hardcoded values in client and server.

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 18:29:48 -05:00
Stefan Metzmacher
ec76e3cc6b 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: 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 18:29:47 -05:00
Stefan Metzmacher
b5a4242fb9 smb: smbdirect: introduce struct smbdirect_rw_io
This will be used by the server in order to manage
RDMA reads and writes.

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 18:29:47 -05:00
Stefan Metzmacher
90255ed467 smb: smbdirect: introduce smbdirect_socket.rw_io.credits
This will be used by the server to manage the state
for RDMA read/write requests.

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 18:29:47 -05:00
Stefan Metzmacher
cce93d2d0c smb: smbdirect: introduce struct smbdirect_send_batch
This will replace struct smb_direct_send_ctx in the server
and allow us move code to the common smbdirect layer 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>
2025-09-28 18:29:47 -05:00
Stefan Metzmacher
2191b3471d 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>
2025-09-28 18:29:47 -05:00
Stefan Metzmacher
3b7be44a0e smb: smbdirect: introduce smbdirect_socket.send_io.pending.{count,{dec,zero}_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>
2025-09-28 18:29:47 -05:00
Stefan Metzmacher
de32f33c03 smb: smbdirect: introduce smbdirect_socket.disconnect_work
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 18:29:47 -05:00
Stefan Metzmacher
17e1d07430 smb: smbdirect: introduce smbdirect_socket_init()
This will make it easier to keep the initialization
in a single place.

For now it's an __always_inline function as we only
share the header files. Once move to common functions
we'll have a dedicated smbdirect.ko that exports functions...

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 18:29:47 -05:00
Stefan Metzmacher
371d3ab51c smb: smbdirect: introduce smbdirect_socket.status_wait
This will be used by server and client 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>
2025-09-28 18:29:47 -05:00
Stefan Metzmacher
1e2f487584 smb: smbdirect: introduce smbdirect_socket_status_string()
This will be used for more useful debug messages.

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 18:29:47 -05:00
Linus Torvalds
e5f0a698b3 Linux 6.17 2025-09-28 14:39:22 -07:00
Linus Torvalds
c68472b464 ARM fixes for 6.17
Just one fix to the module freeing function that was declared __weak
 when it should not have been. Thanks to Petr Pavlu for spotting this.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux

Pull ARM fix from Russell King:
 "Just one fix to the module freeing function that was declared __weak
  when it should not have been. Thanks to Petr Pavlu for spotting this"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux:
  ARM: 9458/1: module: Ensure the override of module_arch_freeing_init()
2025-09-28 13:24:43 -07:00
Linus Torvalds
6855f06042 i2c-for-6.17-rc8
MAINTAINERS: various updates
 riic: fix an off-by-one error
 k1: fix schema to allow validation
 rtl9300: fix faulty merge conflict resolution
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Merge tag 'i2c-for-6.17-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:

 - various MAINTAINERS updates

 - fix an off-by-one error in riic

 - fix k1 DT schema to allow validation

 - rtl9300: fix faulty merge conflict resolution

* tag 'i2c-for-6.17-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: rtl9300: Drop unsupported I2C_FUNC_SMBUS_I2C_BLOCK
  MAINTAINERS: add entry for SpacemiT K1 I2C driver
  MAINTAINERS: Add me as maintainer of Synopsys DesignWare I2C driver
  MAINTAINERS: delete email for Tharun Kumar P
  dt-bindings: i2c: spacemit: extend and validate all properties
  i2c: riic: Allow setting frequencies lower than 50KHz
  MAINTAINERS: Remove myself as Synopsys DesignWare I2C maintainer
  MAINTAINERS: Update email address for Qualcomm's I2C GENI maintainers
2025-09-28 13:19:23 -07:00
Linus Torvalds
8f9736633f tracing fixes for v6.17
- Fix buffer overflow in osnoise_cpu_write()
 
   The allocated buffer to read user space did not add a nul terminating byte
   after copying from user the string. It then reads the string, and if user
   space did not add a nul byte, the read will continue beyond the string.
   Add a nul terminating byte after reading the string.
 
 - Fix missing check for lockdown on tracing
 
   There's a path from kprobe events or uprobe events that can update the
   tracing system even if lockdown on tracing is activate. Add a check in the
   dynamic event path.
 
 - Add a recursion check for the function graph return path
 
   Now that fprobes can hook to the function graph tracer and call different
   code between the entry and the exit, the exit code may now call functions
   that are not called in entry. This means that the exit handler can possibly
   trigger recursion that is not caught and cause the system to crash.
   Add the same recursion checks in the function exit handler as exists in the
   entry handler path.
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Merge tag 'trace-v6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing fixes from Steven Rostedt:

 - Fix buffer overflow in osnoise_cpu_write()

   The allocated buffer to read user space did not add a nul terminating
   byte after copying from user the string. It then reads the string,
   and if user space did not add a nul byte, the read will continue
   beyond the string.

   Add a nul terminating byte after reading the string.

 - Fix missing check for lockdown on tracing

   There's a path from kprobe events or uprobe events that can update
   the tracing system even if lockdown on tracing is activate. Add a
   check in the dynamic event path.

 - Add a recursion check for the function graph return path

   Now that fprobes can hook to the function graph tracer and call
   different code between the entry and the exit, the exit code may now
   call functions that are not called in entry. This means that the exit
   handler can possibly trigger recursion that is not caught and cause
   the system to crash.

   Add the same recursion checks in the function exit handler as exists
   in the entry handler path.

* tag 'trace-v6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing: fgraph: Protect return handler from recursion loop
  tracing: dynevent: Add a missing lockdown check on dynevent
  tracing/osnoise: Fix slab-out-of-bounds in _parse_integer_limit()
2025-09-28 10:26:35 -07:00
Linus Torvalds
a5b2a9f505 spi: Final fixes for v6.17
A few final driver specific fixes that have been sitting in -next for a
 bit, the OMAP issue is likely to come up very infrequently since mixed
 configuration SPI buses are rare and the Cadence issue is specific to
 SoCFPGA systems.
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Merge tag 'spi-fix-v6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "A few final driver specific fixes that have been sitting in -next for
  a bit.

  The OMAP issue is likely to come up very infrequently since mixed
  configuration SPI buses are rare and the Cadence issue is specific to
  SoCFPGA systems"

* tag 'spi-fix-v6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: omap2-mcspi: drive SPI_CLK on transfer_setup()
  spi: cadence-qspi: defer runtime support on socfpga if reset bit is enabled
2025-09-28 09:56:05 -07:00
Linus Torvalds
09d95bc802 7 hotfixes. 4 are cc:stable and the remainder address post-6.16 issues or
aren't considered necessary for -stable kernels.  6 of these fixes are for
 MM.
 
 All singletons, please see the changelogs for details.
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Merge tag 'mm-hotfixes-stable-2025-09-27-22-35' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "7 hotfixes. 4 are cc:stable and the remainder address post-6.16 issues
  or aren't considered necessary for -stable kernels. 6 of these fixes
  are for MM.

  All singletons, please see the changelogs for details"

* tag 'mm-hotfixes-stable-2025-09-27-22-35' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  include/linux/pgtable.h: convert arch_enter_lazy_mmu_mode() and friends to static inlines
  mm/damon/sysfs: do not ignore callback's return value in damon_sysfs_damon_call()
  mailmap: add entry for Bence Csókás
  fs/proc/task_mmu: check p->vec_buf for NULL
  kmsan: fix out-of-bounds access to shadow memory
  mm/hugetlb: fix copy_hugetlb_page_range() to use ->pt_share_count
  mm/hugetlb: fix folio is still mapped when deleted
2025-09-28 09:32:00 -07:00