linux-kernel - [Patch v2 6/6] cifs: smbd: Dump SMB packet when configured

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Message-Id: <20180417191710.14855-6-longli@linuxonhyperv.com>
Date:   Tue, 17 Apr 2018 12:17:10 -0700
From:   Long Li <longli@...uxonhyperv.com>
To:     Steve French <sfrench@...ba.org>, linux-cifs@...r.kernel.org,
        samba-technical@...ts.samba.org, linux-kernel@...r.kernel.org,
        linux-rdma@...r.kernel.org
Cc:     Long Li <longli@...rosoft.com>, stable@...r.kernel.org
Subject: [Patch v2 6/6] cifs: smbd: Dump SMB packet when configured

From: Long Li <longli@...rosoft.com>

When sending through SMB Direct, also dump the packet in SMB send path.

Also fixed a typo in debug message.

Signed-off-by: Long Li <longli@...rosoft.com>
Cc: stable@...r.kernel.org
---
 fs/cifs/smbdirect.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/fs/cifs/smbdirect.c b/fs/cifs/smbdirect.c
index f575e9a..6ff864a 100644
--- a/fs/cifs/smbdirect.c
+++ b/fs/cifs/smbdirect.c
@@ -1029,7 +1029,7 @@ static int smbd_post_send(struct smbd_connection *info,
 	for (i = 0; i < request->num_sge; i++) {
 		log_rdma_send(INFO,
 			"rdma_request sge[%d] addr=%llu length=%u\n",
-			i, request->sge[0].addr, request->sge[0].length);
+			i, request->sge[i].addr, request->sge[i].length);
 		ib_dma_sync_single_for_device(
 			info->id->device,
 			request->sge[i].addr,
@@ -2130,6 +2130,10 @@ int smbd_send(struct smbd_connection *info, struct smb_rqst *rqst)
 		goto done;
 	}
 
+	cifs_dbg(FYI, "Sending smb (RDMA): smb_len=%u\n", buflen);
+	for (i = 0; i < rqst->rq_nvec-1; i++)
+		dump_smb(iov[i].iov_base, iov[i].iov_len);
+
 	remaining_data_length = buflen;
 
 	log_write(INFO, "rqst->rq_nvec=%d rqst->rq_npages=%d rq_pagesz=%d "
-- 
2.7.4