From a836d3e882161c562b3ddacee5d8842a033c5b2c Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Sat, 28 Jun 2008 01:39:43 +0900 Subject: [PATCH] libata-sff: improve HSM violation reporting Improve SFF HSM violation reporting such that each HSM violation can be distinguished using ehi_desc. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/libata-sff.c | 30 +++++++++++++++++++++--------- 1 file changed, 21 insertions(+), 9 deletions(-) diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 215d18672a..c0908c2254 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -1094,6 +1094,7 @@ static void ata_hsm_qc_complete(struct ata_queued_cmd *qc, int in_wq) int ata_sff_hsm_move(struct ata_port *ap, struct ata_queued_cmd *qc, u8 status, int in_wq) { + struct ata_eh_info *ehi = &ap->link.eh_info; unsigned long flags = 0; int poll_next; @@ -1125,9 +1126,12 @@ fsm_start: if (likely(status & (ATA_ERR | ATA_DF))) /* device stops HSM for abort/error */ qc->err_mask |= AC_ERR_DEV; - else + else { /* HSM violation. Let EH handle this */ + ata_ehi_push_desc(ehi, + "ST_FIRST: !(DRQ|ERR|DF)"); qc->err_mask |= AC_ERR_HSM; + } ap->hsm_task_state = HSM_ST_ERR; goto fsm_start; @@ -1146,9 +1150,9 @@ fsm_start: * the CDB. */ if (!(qc->dev->horkage & ATA_HORKAGE_STUCK_ERR)) { - ata_port_printk(ap, KERN_WARNING, - "DRQ=1 with device error, " - "dev_stat 0x%X\n", status); + ata_ehi_push_desc(ehi, "ST_FIRST: " + "DRQ=1 with device error, " + "dev_stat 0x%X", status); qc->err_mask |= AC_ERR_HSM; ap->hsm_task_state = HSM_ST_ERR; goto fsm_start; @@ -1205,9 +1209,9 @@ fsm_start: * let the EH abort the command or reset the device. */ if (unlikely(status & (ATA_ERR | ATA_DF))) { - ata_port_printk(ap, KERN_WARNING, "DRQ=1 with " - "device error, dev_stat 0x%X\n", - status); + ata_ehi_push_desc(ehi, "ST-ATAPI: " + "DRQ=1 with device error, " + "dev_stat 0x%X", status); qc->err_mask |= AC_ERR_HSM; ap->hsm_task_state = HSM_ST_ERR; goto fsm_start; @@ -1226,13 +1230,17 @@ fsm_start: if (likely(status & (ATA_ERR | ATA_DF))) /* device stops HSM for abort/error */ qc->err_mask |= AC_ERR_DEV; - else + else { /* HSM violation. Let EH handle this. * Phantom devices also trigger this * condition. Mark hint. */ + ata_ehi_push_desc(ehi, "ST-ATA: " + "DRQ=1 with device error, " + "dev_stat 0x%X", status); qc->err_mask |= AC_ERR_HSM | AC_ERR_NODEV_HINT; + } ap->hsm_task_state = HSM_ST_ERR; goto fsm_start; @@ -1257,8 +1265,12 @@ fsm_start: status = ata_wait_idle(ap); } - if (status & (ATA_BUSY | ATA_DRQ)) + if (status & (ATA_BUSY | ATA_DRQ)) { + ata_ehi_push_desc(ehi, "ST-ATA: " + "BUSY|DRQ persists on ERR|DF, " + "dev_stat 0x%X", status); qc->err_mask |= AC_ERR_HSM; + } /* ata_pio_sectors() might change the * state to HSM_ST_LAST. so, the state -- 2.39.5