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| author | Dan Williams <dan.j.williams@intel.com> | 2011-11-18 02:59:52 +0100 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-02-19 20:55:42 +0100 |
| commit | b91bb296188118eea9fdc6093cfcf76bbe8589ba (patch) | |
| tree | 8fe9dda8894514f9cd1184368eab975583c12f3c /drivers/scsi/aic94xx/aic94xx_sds.c | |
| parent | [SCSI] libsas: prevent domain rediscovery competing with ata error handling (diff) | |
| download | linux-b91bb296188118eea9fdc6093cfcf76bbe8589ba.tar.xz linux-b91bb296188118eea9fdc6093cfcf76bbe8589ba.zip | |
[SCSI] libsas: use ->set_dmamode to notify lldds of NCQ parameters
sas_discover_sata() notifies lldds of sata devices twice. Once to allow
the 'identify' to be sent, and a second time to allow aic94xx (the only
libsas driver that cares about sata_dev.identify) to setup NCQ
parameters before the device becomes known to the midlayer. Replace
this double notification and intervening 'identify' with an explicit
->lldd_ata_set_dmamode notification. With this change all ata internal
commands are issued by libata, so we no longer need sas_issue_ata_cmd().
The data from the identify command only needs to be cached in one
location so ata_device.id replaces domain_device.sata_dev.identify.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/aic94xx/aic94xx_sds.c')
0 files changed, 0 insertions, 0 deletions