From de3828ff70e8e9f0670df6693814f5aa8c4400ba Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 19 May 2008 01:15:11 +0900 Subject: [PATCH] --- yaml --- r: 96953 b: refs/heads/master c: f1bbfb90e81dd84d59de6370689ee6fe6a71fee0 h: refs/heads/master i: 96951: 7d43ef9826bb2a6a26abd12e1e7d348458c8ff4f v: v3 --- [refs] | 2 +- trunk/drivers/ata/libata-pmp.c | 36 +++++++++++++++++++--------------- 2 files changed, 21 insertions(+), 17 deletions(-) diff --git a/[refs] b/[refs] index d6413a9d56ca..54eb62ecdcf0 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: bf1bff6fa9fdd4e92e57d80a5434fd5201c051fc +refs/heads/master: f1bbfb90e81dd84d59de6370689ee6fe6a71fee0 diff --git a/trunk/drivers/ata/libata-pmp.c b/trunk/drivers/ata/libata-pmp.c index 04a486a3e7b8..0f9386d4a5a0 100644 --- a/trunk/drivers/ata/libata-pmp.c +++ b/trunk/drivers/ata/libata-pmp.c @@ -257,19 +257,6 @@ static int sata_pmp_configure(struct ata_device *dev, int print_info) goto fail; } - /* turn off notification till fan-out ports are reset and configured */ - if (gscr[SATA_PMP_GSCR_FEAT_EN] & SATA_PMP_FEAT_NOTIFY) { - gscr[SATA_PMP_GSCR_FEAT_EN] &= ~SATA_PMP_FEAT_NOTIFY; - - err_mask = sata_pmp_write(dev->link, SATA_PMP_GSCR_FEAT_EN, - gscr[SATA_PMP_GSCR_FEAT_EN]); - if (err_mask) { - rc = -EIO; - reason = "failed to write GSCR_FEAT_EN"; - goto fail; - } - } - if (print_info) { ata_dev_printk(dev, KERN_INFO, "Port Multiplier %s, " "0x%04x:0x%04x r%d, %d ports, feat 0x%x/0x%x\n", @@ -860,6 +847,7 @@ static int sata_pmp_eh_recover(struct ata_port *ap) struct ata_link *pmp_link = &ap->link; struct ata_device *pmp_dev = pmp_link->device; struct ata_eh_context *pmp_ehc = &pmp_link->eh_context; + u32 *gscr = pmp_dev->gscr; struct ata_link *link; struct ata_device *dev; unsigned int err_mask; @@ -897,6 +885,22 @@ static int sata_pmp_eh_recover(struct ata_port *ap) if (rc) goto pmp_fail; + /* PHY event notification can disturb reset and other recovery + * operations. Turn it off. + */ + if (gscr[SATA_PMP_GSCR_FEAT_EN] & SATA_PMP_FEAT_NOTIFY) { + gscr[SATA_PMP_GSCR_FEAT_EN] &= ~SATA_PMP_FEAT_NOTIFY; + + err_mask = sata_pmp_write(pmp_link, SATA_PMP_GSCR_FEAT_EN, + gscr[SATA_PMP_GSCR_FEAT_EN]); + if (err_mask) { + ata_link_printk(pmp_link, KERN_WARNING, + "failed to disable NOTIFY (err_mask=0x%x)\n", + err_mask); + goto pmp_fail; + } + } + /* handle disabled links */ rc = sata_pmp_eh_handle_disabled_links(ap); if (rc) @@ -919,10 +923,10 @@ static int sata_pmp_eh_recover(struct ata_port *ap) /* enable notification */ if (pmp_dev->flags & ATA_DFLAG_AN) { - pmp_dev->gscr[SATA_PMP_GSCR_FEAT_EN] |= SATA_PMP_FEAT_NOTIFY; + gscr[SATA_PMP_GSCR_FEAT_EN] |= SATA_PMP_FEAT_NOTIFY; - err_mask = sata_pmp_write(pmp_dev->link, SATA_PMP_GSCR_FEAT_EN, - pmp_dev->gscr[SATA_PMP_GSCR_FEAT_EN]); + err_mask = sata_pmp_write(pmp_link, SATA_PMP_GSCR_FEAT_EN, + gscr[SATA_PMP_GSCR_FEAT_EN]); if (err_mask) { ata_dev_printk(pmp_dev, KERN_ERR, "failed to write " "PMP_FEAT_EN (Emask=0x%x)\n", err_mask);