File 0168-scsi-disk-trace-rw-errors.patch of Package qemu.26284

From: Hannes Reinecke <hare@suse.de>
Date: Thu, 12 Nov 2020 17:26:14 +0100
Subject: scsi-disk: trace rw errors

References: bsc#1178049

Add a tracepoints for R/W errors.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 hw/scsi/scsi-disk.c  | 2 ++
 hw/scsi/trace-events | 3 ++-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c
index 5bb37b59617dbeae7578d21c3c2f..4bb082c52e46c435701c58d4ad22 100644
--- a/hw/scsi/scsi-disk.c
+++ b/hw/scsi/scsi-disk.c
@@ -431,6 +431,8 @@ static bool scsi_handle_rw_error(SCSIDiskReq *r, int error, bool acct_failed)
     BlockErrorAction action = blk_get_error_action(s->qdev.conf.blk,
                                                    is_read, error);
 
+    trace_scsi_disk_rw_error(r->req.tag, (r->status & 0xff), (r->status >> 8),
+                             error, action);
     if (action == BLOCK_ERROR_ACTION_REPORT) {
         if (acct_failed) {
             block_acct_failed(blk_get_stats(s->qdev.conf.blk), &r->acct);
diff --git a/hw/scsi/trace-events b/hw/scsi/trace-events
index d163b9e6c0bb77ca65a8ee655814..d4225ebc13eb97a32772044a1202 100644
--- a/hw/scsi/trace-events
+++ b/hw/scsi/trace-events
@@ -300,6 +300,7 @@ virtio_scsi_tmf_resp(int lun, uint32_t tag, int response) "virtio_scsi_tmf_resp
 
 # hw/scsi/scsi-disk.c
 scsi_disk_check_condition(uint32_t tag, uint8_t key, uint8_t asc, uint8_t ascq) "Command complete tag=0x%x sense=%d/%d/%d"
+scsi_disk_rw_error(uint32_t tag, uint8_t status, uint8_t host_status, int error, int action) "rw error tag=0x%x status=0x%x host_status=0x%x error=%d action=%d"
 scsi_disk_read_complete(uint32_t tag, size_t size) "Data ready tag=0x%x len=%zd"
 scsi_disk_read_data_count(uint32_t sector_count) "Read sector_count=%d"
 scsi_disk_read_data_invalid(void) "Data transfer direction invalid"
@@ -327,7 +328,7 @@ scsi_disk_dma_command_READ(uint64_t lba, uint32_t len) "Read (sector %" PRId64 "
 scsi_disk_dma_command_WRITE(const char *cmd, uint64_t lba, int len) "Write %s(sector %" PRId64 ", count %u)"
 scsi_disk_new_request(uint32_t lun, uint32_t tag, const char *line) "Command: lun=%d tag=0x%x data=%s"
 scsi_disk_aio_sgio_command(uint32_t tag, uint8_t cmd, uint64_t lba, int len, uint32_t timeout) "disk aio sgio: tag=0x%x cmd 0x%x (sector %" PRId64 ", count %d) timeout %u"
-scsi_disk_aio_sgio_done(uint32_t tag, int ret, uint8_t status, uint8_t host_status) "disk aio sgio: cmd 0x%x ret %d status 0x%x host_status 0x%x"
+scsi_disk_aio_sgio_done(uint32_t tag, int ret, uint8_t status, uint8_t host_status) "disk aio sgio: tag=0x%x ret %d status 0x%x host_status 0x%x"
 
 # hw/scsi/scsi-generic.c
 scsi_generic_command_complete_noio(void *req, uint32_t tag, uint8_t status, uint8_t host_status) "Command complete %p tag=0x%x status=0x%x host_status=0x%x"