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| author | Tejun Heo <htejun@gmail.com> | 2008-04-07 17:47:22 +0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2008-04-17 23:44:25 +0400 |
| commit | 071f44b1d2c051641b62a3571223314737ccbe59 (patch) | |
| tree | a07794c8109e5d82a78223ae0159eadbf862c463 /drivers/ata/libata-core.c | |
| parent | 48515f6c006c2a9d7b624ee8ad068018c2d3fe0e (diff) | |
| download | linux-071f44b1d2c051641b62a3571223314737ccbe59.tar.xz | |
libata: implement PMP helpers
Implement helpers to test whether PMP is supported, attached and
determine pmp number to use when issuing SRST to a link. While at it,
move ata_is_host_link() so that it's together with the two new PMP
helpers.
This change simplifies LLDs and helps making PMP support optional.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Diffstat (limited to 'drivers/ata/libata-core.c')
| -rw-r--r-- | drivers/ata/libata-core.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index b2d5d63fb6c9..3401248180c9 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -2278,7 +2278,7 @@ int ata_dev_configure(struct ata_device *dev) * changed notifications and ATAPI ANs. */ if ((ap->flags & ATA_FLAG_AN) && ata_id_has_atapi_AN(id) && - (!ap->nr_pmp_links || + (!sata_pmp_attached(ap) || sata_scr_read(&ap->link, SCR_NOTIFICATION, &sntf) == 0)) { unsigned int err_mask; @@ -3623,7 +3623,7 @@ int sata_link_hardreset(struct ata_link *link, const unsigned long *timing, if (online) *online = true; - if ((link->ap->flags & ATA_FLAG_PMP) && ata_is_host_link(link)) { + if (sata_pmp_supported(link->ap) && ata_is_host_link(link)) { /* If PMP is supported, we have to do follow-up SRST. * Some PMPs don't send D2H Reg FIS after hardreset if * the first port is empty. Wait only for |