2 files changed, 48 insertions, 14 deletions

diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c
index b0e5ac372a32..744f06d04a36 100644
--- a/drivers/scsi/libsas/sas_ata.c
+++ b/drivers/scsi/libsas/sas_ata.c
@@ -225,10 +225,12 @@ static unsigned int sas_ata_qc_issue(struct ata_queued_cmd *qc)
 	return 0;
 }
 
-static u8 sas_ata_check_status(struct ata_port *ap)
+static bool sas_ata_qc_fill_rtf(struct ata_queued_cmd *qc)
 {
-	struct domain_device *dev = ap->private_data;
-	return dev->sata_dev.tf.command;
+	struct domain_device *dev = qc->ap->private_data;
+
+	memcpy(&qc->result_tf, &dev->sata_dev.tf, sizeof(qc->result_tf));
+	return true;
 }
 
 static void sas_ata_phy_reset(struct ata_port *ap)
@@ -292,12 +294,6 @@ static void sas_ata_post_internal(struct ata_queued_cmd *qc)
 	}
 }
 
-static void sas_ata_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
-{
-	struct domain_device *dev = ap->private_data;
-	memcpy(tf, &dev->sata_dev.tf, sizeof (*tf));
-}
-
 static int sas_ata_scr_write(struct ata_port *ap, unsigned int sc_reg_in,
 			      u32 val)
 {
@@ -348,14 +344,11 @@ static int sas_ata_scr_read(struct ata_port *ap, unsigned int sc_reg_in,
 }
 
 static struct ata_port_operations sas_sata_ops = {
-	.check_status		= sas_ata_check_status,
-	.check_altstatus	= sas_ata_check_status,
-	.dev_select		= ata_noop_dev_select,
 	.phy_reset		= sas_ata_phy_reset,
 	.post_internal_cmd	= sas_ata_post_internal,
-	.tf_read		= sas_ata_tf_read,
 	.qc_prep		= ata_noop_qc_prep,
 	.qc_issue		= sas_ata_qc_issue,
+	.qc_fill_rtf		= sas_ata_qc_fill_rtf,
 	.port_start		= ata_sas_port_start,
 	.port_stop		= ata_sas_port_stop,
 	.scr_read		= sas_ata_scr_read,
@@ -698,7 +691,7 @@ static int sas_discover_sata_dev(struct domain_device *dev)
 		/* incomplete response */
 		SAS_DPRINTK("sending SET FEATURE/PUP_STBY_SPIN_UP to "
 			    "dev %llx\n", SAS_ADDR(dev->sas_addr));
-		if (!le16_to_cpu(identify_x[83] & (1<<6)))
+		if (!(identify_x[83] & cpu_to_le16(1<<6)))
 			goto cont1;
 		res = sas_issue_ata_cmd(dev, ATA_SET_FEATURES,
 					ATA_FEATURE_PUP_STBY_SPIN_UP,
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index 1f8241563c6c..601ec5b6a7f6 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -24,6 +24,8 @@
  */
 
 #include <linux/kthread.h>
+#include <linux/firmware.h>
+#include <linux/ctype.h>
 
 #include "sas_internal.h"
 
@@ -1064,6 +1066,45 @@ void sas_target_destroy(struct scsi_target *starget)
 	return;
 }
 
+static void sas_parse_addr(u8 *sas_addr, const char *p)
+{
+	int i;
+	for (i = 0; i < SAS_ADDR_SIZE; i++) {
+		u8 h, l;
+		if (!*p)
+			break;
+		h = isdigit(*p) ? *p-'0' : toupper(*p)-'A'+10;
+		p++;
+		l = isdigit(*p) ? *p-'0' : toupper(*p)-'A'+10;
+		p++;
+		sas_addr[i] = (h<<4) | l;
+	}
+}
+
+#define SAS_STRING_ADDR_SIZE	16
+
+int sas_request_addr(struct Scsi_Host *shost, u8 *addr)
+{
+	int res;
+	const struct firmware *fw;
+
+	res = request_firmware(&fw, "sas_addr", &shost->shost_gendev);
+	if (res)
+		return res;
+
+	if (fw->size < SAS_STRING_ADDR_SIZE) {
+		res = -ENODEV;
+		goto out;
+	}
+
+	sas_parse_addr(addr, fw->data);
+
+out:
+	release_firmware(fw);
+	return res;
+}
+EXPORT_SYMBOL_GPL(sas_request_addr);
+
 EXPORT_SYMBOL_GPL(sas_queuecommand);
 EXPORT_SYMBOL_GPL(sas_target_alloc);
 EXPORT_SYMBOL_GPL(sas_slave_configure);