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smb: client: split out smbd_ib_post_send()

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This is like smb_direct_post_send() in the server
and will simplify porting the smbdirect_send_batch
and credit related logic from the server.

Cc: <stable@vger.kernel.org> # 6.18.x
Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: 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>
This commit is contained in:
Stefan Metzmacher 2026-01-22 18:16:54 +01:00 committed by Steve French
parent bb848d205f
commit bf30515cae
1 changed files with 17 additions and 16 deletions
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33
fs/smb/client/smbdirect.c
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@ -1101,11 +1101,26 @@ static int manage_keep_alive_before_sending(struct smbdirect_socket *sc)
return 0;
}
static int smbd_ib_post_send(struct smbdirect_socket *sc,
struct ib_send_wr *wr)
{
int ret;
atomic_inc(&sc->send_io.pending.count);
ret = ib_post_send(sc->ib.qp, wr, NULL);
if (ret) {
pr_err("failed to post send: %d\n", ret);
smbd_disconnect_rdma_connection(sc);
ret = -EAGAIN;
}
return ret;
}
/* Post the send request */
static int smbd_post_send(struct smbdirect_socket *sc,
struct smbdirect_send_io *request)
{
int rc, i;
int i;
for (i = 0; i < request->num_sge; i++) {
log_rdma_send(INFO,
@ -1126,15 +1141,7 @@ static int smbd_post_send(struct smbdirect_socket *sc,
request->wr.num_sge = request->num_sge;
request->wr.opcode = IB_WR_SEND;
request->wr.send_flags = IB_SEND_SIGNALED;
rc = ib_post_send(sc->ib.qp, &request->wr, NULL);
if (rc) {
log_rdma_send(ERR, "ib_post_send failed rc=%d\n", rc);
smbd_disconnect_rdma_connection(sc);
rc = -EAGAIN;
}
return rc;
return smbd_ib_post_send(sc, &request->wr);
}
static int wait_for_credits(struct smbdirect_socket *sc,
@ -1280,12 +1287,6 @@ static int smbd_post_send_iter(struct smbdirect_socket *sc,
le32_to_cpu(packet->data_length),
le32_to_cpu(packet->remaining_data_length));
/*
* Now that we got a local and a remote credit
* we add us as pending
*/
atomic_inc(&sc->send_io.pending.count);
rc = smbd_post_send(sc, request);
if (!rc)
return 0;