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| author | Tejun Heo <htejun@gmail.com> | 2007-09-23 06:19:54 +0200 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-10-12 20:55:44 +0200 |
| commit | 633273a3ed1cf37ced90475b0f95cf81deab04f1 (patch) | |
| tree | 5cd42191d1ea8d5ee84fb2f7c7660f124787d9e8 /drivers/ata/libata-eh.c | |
| parent | libata-pmp: implement Port Multiplier support (diff) | |
| download | linux-633273a3ed1cf37ced90475b0f95cf81deab04f1.tar.xz linux-633273a3ed1cf37ced90475b0f95cf81deab04f1.zip | |
libata-pmp: hook PMP support and enable it
Hook PMP support into libata and enable it. Connect SCR and probing
functions, and update ata_dev_classify() to detect PMP.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/ata/libata-eh.c')
| -rw-r--r-- | drivers/ata/libata-eh.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index 687419b66708..5f2c0f376f74 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -2209,6 +2209,8 @@ static int ata_eh_revalidate_and_attach(struct ata_link *link, readid_flags |= ATA_READID_POSTRESET; if ((action & ATA_EH_REVALIDATE) && ata_dev_enabled(dev)) { + WARN_ON(dev->class == ATA_DEV_PMP); + if (ata_link_offline(link)) { rc = -EIO; goto err; @@ -2234,8 +2236,11 @@ static int ata_eh_revalidate_and_attach(struct ata_link *link, ata_class_enabled(ehc->classes[dev->devno])) { dev->class = ehc->classes[dev->devno]; - rc = ata_dev_read_id(dev, &dev->class, readid_flags, - dev->id); + if (dev->class == ATA_DEV_PMP) + rc = sata_pmp_attach(dev); + else + rc = ata_dev_read_id(dev, &dev->class, + readid_flags, dev->id); switch (rc) { case 0: new_mask |= 1 << dev->devno; @@ -2264,7 +2269,8 @@ static int ata_eh_revalidate_and_attach(struct ata_link *link, * device detection messages backwards. */ ata_link_for_each_dev(dev, link) { - if (!(new_mask & (1 << dev->devno))) + if (!(new_mask & (1 << dev->devno)) || + dev->class == ATA_DEV_PMP) continue; ehc->i.flags |= ATA_EHI_PRINTINFO; @@ -2521,6 +2527,12 @@ int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset, if (rc) goto dev_fail; + /* if PMP got attached, return, pmp EH will take care of it */ + if (link->device->class == ATA_DEV_PMP) { + ehc->i.action = 0; + return 0; + } + /* configure transfer mode if necessary */ if (ehc->i.flags & ATA_EHI_SETMODE) { rc = ata_set_mode(link, &dev); |