linux/drivers/scsi/libsas
Dan Williams d214d81e88 [SCSI] libsas: improve debug statements
It's difficult to determine which domain_device is triggering error recovery,
so convert messages like:

  sas: ex 5001b4da000e703f phy08:T attached: 5001b4da000e7028
  sas: ex 5001b4da000e703f phy09:T attached: 5001b4da000e7029
  ...
  ata7: sas eh calling libata port error handler
  ata8: sas eh calling libata port error handler

...into:

  sas: ex 5001517e85cfefff phy05:T:9 attached: 5001517e85cfefe5 (stp)
  sas: ex 5001517e3b0af0bf phy11:T:8 attached: 5001517e3b0af0ab (stp)
  ...
  sas: ata7: end_device-21:1: dev error handler
  sas: ata8: end_device-20:0:5: dev error handler

which shows attached link rate, device type, and associates a
domain_device with its ata_port id to correlate messages emitted from
libata-eh.

As Doug notes, we can also take the opportunity to clarify expander phy
routing capabilities.

[dgilbert@interlog.com: clarify table2table with 'U']
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-02-29 15:28:24 -06:00
..
Kconfig [SCSI] libsas: convert to standard kernel debugging 2011-01-24 12:05:38 -06:00
Makefile Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 2011-03-20 18:14:55 -07:00
sas_ata.c [SCSI] libsas: improve debug statements 2012-02-29 15:28:24 -06:00
sas_discover.c [SCSI] libsas: kill spurious sas_put_device 2012-02-29 15:27:44 -06:00
sas_dump.c [SCSI] libsas: convert to standard kernel debugging 2011-01-24 12:05:38 -06:00
sas_dump.h [SCSI] libsas: convert to standard kernel debugging 2011-01-24 12:05:38 -06:00
sas_event.c [SCSI] libsas: fix sas_unregister_ports vs sas_drain_work 2012-02-29 15:27:09 -06:00
sas_expander.c [SCSI] libsas: improve debug statements 2012-02-29 15:28:24 -06:00
sas_host_smp.c [SCSI] libsas: route local link resets through ata-eh 2012-02-29 15:25:32 -06:00
sas_init.c [SCSI] libsas: fix sas_unregister_ports vs sas_drain_work 2012-02-29 15:27:09 -06:00
sas_internal.h [SCSI] libsas: fix sas_unregister_ports vs sas_drain_work 2012-02-29 15:27:09 -06:00
sas_phy.c [SCSI] libsas: replace event locks with atomic bitops 2012-02-19 13:41:04 -06:00
sas_port.c [SCSI] libsas: mark all domain devices gone if root port disappears 2012-02-29 15:20:55 -06:00
sas_scsi_host.c [SCSI] libsas: fix mixed topology recovery 2012-02-29 15:23:24 -06:00
sas_task.c scsi: Add export.h for EXPORT_SYMBOL/THIS_MODULE as required 2011-10-31 19:31:23 -04:00