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/openbmc/linux/drivers/message/fusion/ |
H A D | mptbase.h | 2686de27 Fri Jun 30 12:54:02 CDT 2006 James Bottomley <James.Bottomley@steeleye.com> [SCSI] mptsas: eliminate ghost devices
One of the current problems the mptsas driver has is that of "ghost" devices (these are devices the firmware reports as existing, but what they actually represent are the parents of a lower device), so for example in my dual expander configuration, three expanders actually show up, two for the real expanders but a third is created because the firmware reports that the lower expander also has another expander connected (which is simply the port going back to the upper expander).
The attached patch eliminates all these ghosts by not allocating any devices for them if the SAS address is the SAS address of the parent.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com> 2686de27 Fri Jun 30 12:54:02 CDT 2006 James Bottomley <James.Bottomley@steeleye.com> [SCSI] mptsas: eliminate ghost devices One of the current problems the mptsas driver has is that of "ghost" devices (these are devices the firmware reports as existing, but what they actually represent are the parents of a lower device), so for example in my dual expander configuration, three expanders actually show up, two for the real expanders but a third is created because the firmware reports that the lower expander also has another expander connected (which is simply the port going back to the upper expander). The attached patch eliminates all these ghosts by not allocating any devices for them if the SAS address is the SAS address of the parent. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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H A D | mptsas.c | 2686de27 Fri Jun 30 12:54:02 CDT 2006 James Bottomley <James.Bottomley@steeleye.com> [SCSI] mptsas: eliminate ghost devices
One of the current problems the mptsas driver has is that of "ghost" devices (these are devices the firmware reports as existing, but what they actually represent are the parents of a lower device), so for example in my dual expander configuration, three expanders actually show up, two for the real expanders but a third is created because the firmware reports that the lower expander also has another expander connected (which is simply the port going back to the upper expander).
The attached patch eliminates all these ghosts by not allocating any devices for them if the SAS address is the SAS address of the parent.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com> 2686de27 Fri Jun 30 12:54:02 CDT 2006 James Bottomley <James.Bottomley@steeleye.com> [SCSI] mptsas: eliminate ghost devices One of the current problems the mptsas driver has is that of "ghost" devices (these are devices the firmware reports as existing, but what they actually represent are the parents of a lower device), so for example in my dual expander configuration, three expanders actually show up, two for the real expanders but a third is created because the firmware reports that the lower expander also has another expander connected (which is simply the port going back to the upper expander). The attached patch eliminates all these ghosts by not allocating any devices for them if the SAS address is the SAS address of the parent. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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