From: Eric Farman <far...@linux.vnet.ibm.com>
When running with debug enabled, the scsi-generic cdb that is
dumped skips byte 0 of the command, which is the opcode. This
makes identifying which command is being issued/completed a
little difficult. Example:
0x00 0x00 0x01 0x00 0x00
scsi-generic: scsi_read_data 0x0
scsi-generic: Data ready tag=0x0 len=164
scsi-generic: scsi_read_data 0x0
scsi-generic: Command complete 0x0x10a42c60 tag=0x0 status=0
Improve this by adding a message prior to the loop, similar to
what exists for scsi-disk. Clean up a few other messages to be
more explicit of what is being represented. Example:
scsi-generic: Command: data=0x12 0x00 0x00 0x01 0x00 0x00
scsi-generic: scsi_read_data tag=0x0
scsi-generic: Data ready tag=0x0 len=164
scsi-generic: scsi_read_data tag=0x0
scsi-generic: Command complete 0x0x10a452d0 tag=0x0 status=0
Signed-off-by: Eric Farman <far...@linux.vnet.ibm.com>
Message-Id: <20170120162527.66075-2-far...@linux.vnet.ibm.com>
Reviewed-by: Fam Zheng <f...@redhat.com>
Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
---
hw/scsi/scsi-generic.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/hw/scsi/scsi-generic.c b/hw/scsi/scsi-generic.c
index 7a588a7..92f091a 100644
--- a/hw/scsi/scsi-generic.c
+++ b/hw/scsi/scsi-generic.c
@@ -246,7 +246,7 @@ static void scsi_read_data(SCSIRequest *req)
SCSIDevice *s = r->req.dev;
int ret;
- DPRINTF("scsi_read_data 0x%x\n", req->tag);
+ DPRINTF("scsi_read_data tag=0x%x\n", req->tag);
/* The request is used as the AIO opaque value, so add a ref. */
scsi_req_ref(&r->req);
@@ -294,7 +294,7 @@ static void scsi_write_data(SCSIRequest *req)
SCSIDevice *s = r->req.dev;
int ret;
- DPRINTF("scsi_write_data 0x%x\n", req->tag);
+ DPRINTF("scsi_write_data tag=0x%x\n", req->tag);
if (r->len == 0) {
r->len = r->buflen;
scsi_req_data(&r->req, r->len);
@@ -329,6 +329,7 @@ static int32_t scsi_send_command(SCSIRequest *req, uint8_t
*cmd)
int ret;
#ifdef DEBUG_SCSI
+ DPRINTF("Command: data=0x%02x", cmd[0]);
{
int i;
for (i = 1; i < r->req.cmd.len; i++) {
--
1.8.3.1
