X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fata%2Flibata-sff.c;h=2ec65a8fda79ecc46986ed0da6de7d886c71ccf5;hb=50be4917ee70218f59e04dec029121b97fb9cb3d;hp=78912c5011adc3248738b512019937a6a7623d4a;hpb=aa2731ad9ad80ac3fca48bd1c4cf0eceede4810e;p=linux-2.6

diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index 78912c5011..2ec65a8fda 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -44,11 +44,13 @@ const struct ata_port_operations ata_sff_port_ops = {
 
 	.qc_prep		= ata_sff_qc_prep,
 	.qc_issue		= ata_sff_qc_issue,
+	.qc_fill_rtf		= ata_sff_qc_fill_rtf,
 
 	.freeze			= ata_sff_freeze,
 	.thaw			= ata_sff_thaw,
 	.prereset		= ata_sff_prereset,
 	.softreset		= ata_sff_softreset,
+	.hardreset		= sata_sff_hardreset,
 	.postreset		= ata_sff_postreset,
 	.error_handler		= ata_sff_error_handler,
 	.post_internal_cmd	= ata_sff_post_internal_cmd,
@@ -1206,7 +1208,7 @@ fsm_start:
 		DPRINTK("ata%u: dev %u command complete, drv_stat 0x%x\n",
 			ap->print_id, qc->dev->devno, status);
 
-		WARN_ON(qc->err_mask);
+		WARN_ON(qc->err_mask & (AC_ERR_DEV | AC_ERR_HSM));
 
 		ap->hsm_task_state = HSM_ST_IDLE;
 
@@ -1220,7 +1222,7 @@ fsm_start:
 		/* make sure qc->err_mask is available to
 		 * know what's wrong and recover
 		 */
-		WARN_ON(qc->err_mask == 0);
+		WARN_ON(!(qc->err_mask & (AC_ERR_DEV | AC_ERR_HSM)));
 
 		ap->hsm_task_state = HSM_ST_IDLE;
 
@@ -1406,6 +1408,25 @@ unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc)
 	return 0;
 }
 
+/**
+ *	ata_sff_qc_fill_rtf - fill result TF using ->sff_tf_read
+ *	@qc: qc to fill result TF for
+ *
+ *	@qc is finished and result TF needs to be filled.  Fill it
+ *	using ->sff_tf_read.
+ *
+ *	LOCKING:
+ *	spin_lock_irqsave(host lock)
+ *
+ *	RETURNS:
+ *	true indicating that result TF is successfully filled.
+ */
+bool ata_sff_qc_fill_rtf(struct ata_queued_cmd *qc)
+{
+	qc->ap->ops->sff_tf_read(qc->ap, &qc->result_tf);
+	return true;
+}
+
 /**
  *	ata_sff_host_intr - Handle host interrupt for given (port, task)
  *	@ap: Port on which interrupt arrived (possibly...)
@@ -1868,11 +1889,6 @@ int ata_sff_softreset(struct ata_link *link, unsigned int *classes,
 
 	DPRINTK("ENTER\n");
 
-	if (ata_link_offline(link)) {
-		classes[0] = ATA_DEV_NONE;
-		goto out;
-	}
-
 	/* determine if device 0/1 are present */
 	if (ata_devchk(ap, 0))
 		devmask |= (1 << 0);
@@ -1898,7 +1914,6 @@ int ata_sff_softreset(struct ata_link *link, unsigned int *classes,
 		classes[1] = ata_sff_dev_classify(&link->device[1],
 						  devmask & (1 << 1), &err);
 
- out:
 	DPRINTK("EXIT, classes[0]=%u [1]=%u\n", classes[0], classes[1]);
 	return 0;
 }
@@ -1921,50 +1936,18 @@ int ata_sff_softreset(struct ata_link *link, unsigned int *classes,
 int sata_sff_hardreset(struct ata_link *link, unsigned int *class,
 		       unsigned long deadline)
 {
-	struct ata_port *ap = link->ap;
-	const unsigned long *timing = sata_ehc_deb_timing(&link->eh_context);
+	struct ata_eh_context *ehc = &link->eh_context;
+	const unsigned long *timing = sata_ehc_deb_timing(ehc);
+	bool online;
 	int rc;
 
-	DPRINTK("ENTER\n");
-
-	/* do hardreset */
-	rc = sata_link_hardreset(link, timing, deadline);
-	if (rc) {
-		ata_link_printk(link, KERN_ERR,
-				"COMRESET failed (errno=%d)\n", rc);
-		return rc;
-	}
-
-	/* TODO: phy layer with polling, timeouts, etc. */
-	if (ata_link_offline(link)) {
-		*class = ATA_DEV_NONE;
-		DPRINTK("EXIT, link offline\n");
-		return 0;
-	}
-
-	/* If PMP is supported, we have to do follow-up SRST.  Note
-	 * that some PMPs don't send D2H Reg FIS after hardreset at
-	 * all if the first port is empty.  Wait for it just for a
-	 * second and request follow-up SRST.
-	 */
-	if (ap->flags & ATA_FLAG_PMP) {
-		ata_sff_wait_after_reset(link, 1, jiffies + HZ);
-		return -EAGAIN;
-	}
-
-	/* wait for the link to become online */
-	rc = ata_sff_wait_after_reset(link, 1, deadline);
-	/* link occupied, -ENODEV too is an error */
-	if (rc) {
-		ata_link_printk(link, KERN_ERR,
-				"COMRESET failed (errno=%d)\n", rc);
-		return rc;
-	}
-
-	*class = ata_sff_dev_classify(link->device, 1, NULL);
+	rc = sata_link_hardreset(link, timing, deadline, &online,
+				 ata_sff_check_ready);
+	if (online)
+		*class = ata_sff_dev_classify(link->device, 1, NULL);
 
 	DPRINTK("EXIT, class=%u\n", *class);
-	return 0;
+	return rc;
 }
 
 /**
@@ -2062,14 +2045,12 @@ void ata_sff_error_handler(struct ata_port *ap)
 
 	/* PIO and DMA engines have been stopped, perform recovery */
 
-	/* ata_sff_softreset and sata_sff_hardreset are inherited to
-	 * all SFF drivers from ata_sff_port_ops.  Ignore softreset if
-	 * ctl isn't accessible.  Ignore hardreset if SCR access isn't
-	 * available.
+	/* Ignore ata_sff_softreset if ctl isn't accessible and
+	 * built-in hardresets if SCR access isn't available.
 	 */
 	if (softreset == ata_sff_softreset && !ap->ioaddr.ctl_addr)
 		softreset = NULL;
-	if (hardreset == sata_sff_hardreset && !sata_scr_valid(&ap->link))
+	if (ata_is_builtin_hardreset(hardreset) && !sata_scr_valid(&ap->link))
 		hardreset = NULL;
 
 	ata_do_eh(ap, ap->ops->prereset, softreset, hardreset,
@@ -2757,6 +2738,7 @@ EXPORT_SYMBOL_GPL(ata_sff_irq_on);
 EXPORT_SYMBOL_GPL(ata_sff_irq_clear);
 EXPORT_SYMBOL_GPL(ata_sff_hsm_move);
 EXPORT_SYMBOL_GPL(ata_sff_qc_issue);
+EXPORT_SYMBOL_GPL(ata_sff_qc_fill_rtf);
 EXPORT_SYMBOL_GPL(ata_sff_host_intr);
 EXPORT_SYMBOL_GPL(ata_sff_interrupt);
 EXPORT_SYMBOL_GPL(ata_sff_freeze);