From: James Bottomley <James.Bottomley@SteelEye.com>
To: dougg@torque.net
Cc: Alexis Bruemmer <alexisb@us.ibm.com>,
linux-scsi <linux-scsi@vger.kernel.org>
Subject: Re: [PATCH] aic94xx: make use of the new sas_port
Date: Thu, 01 Jun 2006 16:40:30 -0500 [thread overview]
Message-ID: <1149198030.3489.60.camel@mulgrave.il.steeleye.com> (raw)
In-Reply-To: <447F1425.3070205@torque.net>
On Thu, 2006-06-01 at 12:21 -0400, Douglas Gilbert wrote:
> >>Also during the boot process on the x260 with an expander we see these
> >>printk's:
> >>sas: phy[n] matched wide port0
> >>If we are going to print this then we better be sure that this is truly
> >>a wide port. It seems under the sys/class/ we have both a single
> >>port0:0 and then also port-0:0:[n]-- a port[n] for each phy[n]. and
> >>although each phy seems to have the same sas_address the end_device
> >>attached to that phy have unique addresses. My understanding is that a
> >>wide port has multiple phys with the same sas address and are attached
> >>to one end device.
Just for reference, this is what my x260 looks like:
./
+-- phy-0:0/
| +-- port@ -> ../../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0
| +-- power/
| | +-- state
| | +-- wakeup
| +-- sas_phy:phy-0:0@ -> ../../../../../class/sas_phy/phy-0:0
| +-- uevent
+-- phy-0:1/
| +-- port@ -> ../../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0
| +-- power/
| | +-- state
| | +-- wakeup
| +-- sas_phy:phy-0:1@ -> ../../../../../class/sas_phy/phy-0:1
| +-- uevent
+-- phy-0:2/
| +-- port@ -> ../../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0
| +-- power/
| | +-- state
| | +-- wakeup
| +-- sas_phy:phy-0:2@ -> ../../../../../class/sas_phy/phy-0:2
| +-- uevent
+-- phy-0:3/
| +-- port@ -> ../../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0
| +-- power/
| | +-- state
| | +-- wakeup
| +-- sas_phy:phy-0:3@ -> ../../../../../class/sas_phy/phy-0:3
| +-- uevent
+-- phy-0:4/
| +-- port@ -> ../../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:1
| +-- power/
| | +-- state
| | +-- wakeup
| +-- sas_phy:phy-0:4@ -> ../../../../../class/sas_phy/phy-0:4
| +-- uevent
+-- phy-0:5/
| +-- port@ -> ../../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:1
| +-- power/
| | +-- state
| | +-- wakeup
| +-- sas_phy:phy-0:5@ -> ../../../../../class/sas_phy/phy-0:5
| +-- uevent
+-- phy-0:6/
| +-- port@ -> ../../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:1
| +-- power/
| | +-- state
| | +-- wakeup
| +-- sas_phy:phy-0:6@ -> ../../../../../class/sas_phy/phy-0:6
| +-- uevent
+-- phy-0:7/
| +-- port@ -> ../../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:1
| +-- power/
| | +-- state
| | +-- wakeup
| +-- sas_phy:phy-0:7@ -> ../../../../../class/sas_phy/phy-0:7
| +-- uevent
+-- port-0:0/
| +-- expander-0:0/
| | +-- phy-0-0:0/
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_phy:phy-0-0:0@ -> ../../../../../../../class/sas_phy/phy-0-0:0
| | | +-- uevent
| | +-- phy-0-0:1/
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_phy:phy-0-0:1@ -> ../../../../../../../class/sas_phy/phy-0-0:1
| | | +-- uevent
| | +-- phy-0-0:10/
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_phy:phy-0-0:10@ -> ../../../../../../../class/sas_phy/phy-0-0:10
| | | +-- uevent
| | +-- phy-0-0:11/
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_phy:phy-0-0:11@ -> ../../../../../../../class/sas_phy/phy-0-0:11
| | | +-- uevent
| | +-- phy-0-0:12/
| | | +-- port@ -> ../../../../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/port-0:0:0
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_phy:phy-0-0:12@ -> ../../../../../../../class/sas_phy/phy-0-0:12
| | | +-- uevent
| | +-- phy-0-0:2/
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_phy:phy-0-0:2@ -> ../../../../../../../class/sas_phy/phy-0-0:2
| | | +-- uevent
| | +-- phy-0-0:3/
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_phy:phy-0-0:3@ -> ../../../../../../../class/sas_phy/phy-0-0:3
| | | +-- uevent
| | +-- phy-0-0:4/
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_phy:phy-0-0:4@ -> ../../../../../../../class/sas_phy/phy-0-0:4
| | | +-- uevent
| | +-- phy-0-0:5/
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_phy:phy-0-0:5@ -> ../../../../../../../class/sas_phy/phy-0-0:5
| | | +-- uevent
| | +-- phy-0-0:6/
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_phy:phy-0-0:6@ -> ../../../../../../../class/sas_phy/phy-0-0:6
| | | +-- uevent
| | +-- phy-0-0:7/
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_phy:phy-0-0:7@ -> ../../../../../../../class/sas_phy/phy-0-0:7
| | | +-- uevent
| | +-- phy-0-0:8/
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_phy:phy-0-0:8@ -> ../../../../../../../class/sas_phy/phy-0-0:8
| | | +-- uevent
| | +-- phy-0-0:9/
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_phy:phy-0-0:9@ -> ../../../../../../../class/sas_phy/phy-0-0:9
| | | +-- uevent
| | +-- port-0:0:0/
| | | +-- end_device-0:0-0/
| | | | +-- power/
| | | | | +-- state
| | | | | +-- wakeup
| | | | +-- sas_device:end_device-0:0-0@ -> ../../../../../../../../class/sas_device/end_device-0:0-0
| | | | +-- sas_end_device:end_device-0:0-0@ -> ../../../../../../../../class/sas_end_device/end_device-0:0-0
| | | | +-- target0:0:0/
| | | | | +-- 0:0:0:0/
| | | | | | +-- bus@ -> ../../../../../../../../../../bus/scsi
| | | | | | +-- delete
| | | | | | +-- device_blocked
| | | | | | +-- iocounterbits
| | | | | | +-- iodone_cnt
| | | | | | +-- ioerr_cnt
| | | | | | +-- iorequest_cnt
| | | | | | +-- model
| | | | | | +-- power/
| | | | | | | +-- state
| | | | | | | +-- wakeup
| | | | | | +-- queue_depth
| | | | | | +-- queue_type
| | | | | | +-- rescan
| | | | | | +-- rev
| | | | | | +-- scsi_device:0:0:0:0@ -> ../../../../../../../../../../class/scsi_device/0:0:0:0
| | | | | | +-- scsi_level
| | | | | | +-- state
| | | | | | +-- timeout
| | | | | | +-- type
| | | | | | +-- uevent
| | | | | | +-- vendor
| | | | | +-- power/
| | | | | | +-- state
| | | | | | +-- wakeup
| | | | | +-- uevent
| | | | +-- uevent
| | | +-- phy-0-0:12@ -> ../../../../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:0/expander-0:0/phy-0-0:12
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_port:port-0:0:0@ -> ../../../../../../../class/sas_port/port-0:0:0
| | | +-- uevent
| | +-- power/
| | | +-- state
| | | +-- wakeup
| | +-- sas_device:expander-0:0@ -> ../../../../../../class/sas_device/expander-0:0
| | +-- sas_expander:expander-0:0@ -> ../../../../../../class/sas_expander/expander-0:0
| | +-- uevent
| +-- phy-0:0@ -> ../../../../../devices/pci0000:01/0000:01:02.0/host0/phy-0:0
| +-- phy-0:1@ -> ../../../../../devices/pci0000:01/0000:01:02.0/host0/phy-0:1
| +-- phy-0:2@ -> ../../../../../devices/pci0000:01/0000:01:02.0/host0/phy-0:2
| +-- phy-0:3@ -> ../../../../../devices/pci0000:01/0000:01:02.0/host0/phy-0:3
| +-- power/
| | +-- state
| | +-- wakeup
| +-- sas_port:port-0:0@ -> ../../../../../class/sas_port/port-0:0
| +-- uevent
+-- port-0:1/
| +-- expander-0:1/
| | +-- phy-0-1:0/
| | | +-- port@ -> ../../../../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:1/expander-0:1/port-0:1:0
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_phy:phy-0-1:0@ -> ../../../../../../../class/sas_phy/phy-0-1:0
| | | +-- uevent
| | +-- phy-0-1:1/
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_phy:phy-0-1:1@ -> ../../../../../../../class/sas_phy/phy-0-1:1
| | | +-- uevent
| | +-- phy-0-1:10/
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_phy:phy-0-1:10@ -> ../../../../../../../class/sas_phy/phy-0-1:10
| | | +-- uevent
| | +-- phy-0-1:11/
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_phy:phy-0-1:11@ -> ../../../../../../../class/sas_phy/phy-0-1:11
| | | +-- uevent
| | +-- phy-0-1:12/
| | | +-- port@ -> ../../../../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:1/expander-0:1/port-0:1:1
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_phy:phy-0-1:12@ -> ../../../../../../../class/sas_phy/phy-0-1:12
| | | +-- uevent
| | +-- phy-0-1:2/
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_phy:phy-0-1:2@ -> ../../../../../../../class/sas_phy/phy-0-1:2
| | | +-- uevent
| | +-- phy-0-1:3/
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_phy:phy-0-1:3@ -> ../../../../../../../class/sas_phy/phy-0-1:3
| | | +-- uevent
| | +-- phy-0-1:4/
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_phy:phy-0-1:4@ -> ../../../../../../../class/sas_phy/phy-0-1:4
| | | +-- uevent
| | +-- phy-0-1:5/
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_phy:phy-0-1:5@ -> ../../../../../../../class/sas_phy/phy-0-1:5
| | | +-- uevent
| | +-- phy-0-1:6/
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_phy:phy-0-1:6@ -> ../../../../../../../class/sas_phy/phy-0-1:6
| | | +-- uevent
| | +-- phy-0-1:7/
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_phy:phy-0-1:7@ -> ../../../../../../../class/sas_phy/phy-0-1:7
| | | +-- uevent
| | +-- phy-0-1:8/
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_phy:phy-0-1:8@ -> ../../../../../../../class/sas_phy/phy-0-1:8
| | | +-- uevent
| | +-- phy-0-1:9/
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_phy:phy-0-1:9@ -> ../../../../../../../class/sas_phy/phy-0-1:9
| | | +-- uevent
| | +-- port-0:1:0/
| | | +-- end_device-0:0-0/
| | | | +-- power/
| | | | | +-- state
| | | | | +-- wakeup
| | | | +-- target0:0:1/
| | | | | +-- 0:0:1:0/
| | | | | | +-- block:sda@ -> ../../../../../../../../../../block/sda
| | | | | | +-- bus@ -> ../../../../../../../../../../bus/scsi
| | | | | | +-- delete
| | | | | | +-- device_blocked
| | | | | | +-- driver@ -> ../../../../../../../../../../bus/scsi/drivers/sd
| | | | | | +-- iocounterbits
| | | | | | +-- iodone_cnt
| | | | | | +-- ioerr_cnt
| | | | | | +-- iorequest_cnt
| | | | | | +-- model
| | | | | | +-- power/
| | | | | | | +-- state
| | | | | | | +-- wakeup
| | | | | | +-- queue_depth
| | | | | | +-- queue_type
| | | | | | +-- rescan
| | | | | | +-- rev
| | | | | | +-- scsi_device:0:0:1:0@ -> ../../../../../../../../../../class/scsi_device/0:0:1:0
| | | | | | +-- scsi_disk:0:0:1:0@ -> ../../../../../../../../../../class/scsi_disk/0:0:1:0
| | | | | | +-- scsi_level
| | | | | | +-- state
| | | | | | +-- timeout
| | | | | | +-- type
| | | | | | +-- uevent
| | | | | | +-- vendor
| | | | | +-- power/
| | | | | | +-- state
| | | | | | +-- wakeup
| | | | | +-- uevent
| | | | +-- uevent
| | | +-- phy-0-1:0@ -> ../../../../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:1/expander-0:1/phy-0-1:0
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_port:port-0:1:0@ -> ../../../../../../../class/sas_port/port-0:1:0
| | | +-- uevent
| | +-- port-0:1:1/
| | | +-- end_device-0:1-1/
| | | | +-- power/
| | | | | +-- state
| | | | | +-- wakeup
| | | | +-- sas_device:end_device-0:1-1@ -> ../../../../../../../../class/sas_device/end_device-0:1-1
| | | | +-- sas_end_device:end_device-0:1-1@ -> ../../../../../../../../class/sas_end_device/end_device-0:1-1
| | | | +-- target0:1:2/
| | | | | +-- 0:1:2:0/
| | | | | | +-- bus@ -> ../../../../../../../../../../bus/scsi
| | | | | | +-- delete
| | | | | | +-- device_blocked
| | | | | | +-- iocounterbits
| | | | | | +-- iodone_cnt
| | | | | | +-- ioerr_cnt
| | | | | | +-- iorequest_cnt
| | | | | | +-- model
| | | | | | +-- power/
| | | | | | | +-- state
| | | | | | | +-- wakeup
| | | | | | +-- queue_depth
| | | | | | +-- queue_type
| | | | | | +-- rescan
| | | | | | +-- rev
| | | | | | +-- scsi_device:0:1:2:0@ -> ../../../../../../../../../../class/scsi_device/0:1:2:0
| | | | | | +-- scsi_level
| | | | | | +-- state
| | | | | | +-- timeout
| | | | | | +-- type
| | | | | | +-- uevent
| | | | | | +-- vendor
| | | | | +-- power/
| | | | | | +-- state
| | | | | | +-- wakeup
| | | | | +-- uevent
| | | | +-- uevent
| | | +-- phy-0-1:12@ -> ../../../../../../../devices/pci0000:01/0000:01:02.0/host0/port-0:1/expander-0:1/phy-0-1:12
| | | +-- power/
| | | | +-- state
| | | | +-- wakeup
| | | +-- sas_port:port-0:1:1@ -> ../../../../../../../class/sas_port/port-0:1:1
| | | +-- uevent
| | +-- power/
| | | +-- state
| | | +-- wakeup
| | +-- sas_device:expander-0:1@ -> ../../../../../../class/sas_device/expander-0:1
| | +-- sas_expander:expander-0:1@ -> ../../../../../../class/sas_expander/expander-0:1
| | +-- uevent
| +-- phy-0:4@ -> ../../../../../devices/pci0000:01/0000:01:02.0/host0/phy-0:4
| +-- phy-0:5@ -> ../../../../../devices/pci0000:01/0000:01:02.0/host0/phy-0:5
| +-- phy-0:6@ -> ../../../../../devices/pci0000:01/0000:01:02.0/host0/phy-0:6
| +-- phy-0:7@ -> ../../../../../devices/pci0000:01/0000:01:02.0/host0/phy-0:7
| +-- power/
| | +-- state
| | +-- wakeup
| +-- sas_port:port-0:1@ -> ../../../../../class/sas_port/port-0:1
| +-- uevent
+-- power/
| +-- state
| +-- wakeup
+-- sas_host:host0@ -> ../../../../class/sas_host/host0
+-- scsi_host:host0@ -> ../../../../class/scsi_host/host0
+-- uevent
As you see: two wide ports over 8 phys on the HBA then three single
ports on the expanders for the two SES monitors and the one disk.
James
prev parent reply other threads:[~2006-06-01 21:40 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-31 4:09 [PATCH] aic94xx: make use of the new sas_port James Bottomley
2006-05-31 19:46 ` Alexis Bruemmer
2006-05-31 20:57 ` James Bottomley
2006-05-31 22:00 ` Alexis Bruemmer
2006-05-31 22:11 ` James Bottomley
2006-05-31 21:32 ` Douglas Gilbert
2006-05-31 22:30 ` Alexis Bruemmer
2006-05-31 22:37 ` James Bottomley
2006-05-31 23:16 ` Alexis Bruemmer
2006-06-01 16:21 ` Douglas Gilbert
2006-06-01 21:40 ` James Bottomley [this message]
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