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| author | Tejun Heo <htejun@gmail.com> | 2008-04-07 17:47:20 +0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2008-04-17 23:44:23 +0400 |
| commit | 22183bf569c8600ff414ac25f23134044e0ef453 (patch) | |
| tree | 1dea79cdbe439637477e1c4214b600b6823cb866 /usr | |
| parent | 305d2a1ab137d11d573319c315748a87060fe82d (diff) | |
| download | linux-22183bf569c8600ff414ac25f23134044e0ef453.tar.xz | |
libata: add qc_fill_rtf port operation
On command completion, ata_qc_complete() directly called ops->tf_read
to fill qc->result_tf. This patch adds ops->qc_fill_rtf to replace
hardcoded ops->tf_read usage.
ata_sff_qc_fill_rtf() which uses ops->tf_read to fill result_tf is
implemented and set in ata_base_port_ops and other ops tables which
don't inherit from ata_base_port_ops, so this patch doesn't introduce
any behavior change.
ops->qc_fill_rtf() is similar to ops->sff_tf_read() but can only be
called when a command finishes. As some non-SFF controllers don't
have TF registers defined unless they're associated with in-flight
commands, this limited operation makes life easier for those drivers
and help lifting SFF assumptions from libata core layer.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Diffstat (limited to 'usr')
0 files changed, 0 insertions, 0 deletions