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-rw-r--r--drivers/ata/ahci.h2
-rw-r--r--drivers/ata/libahci.c7
-rw-r--r--drivers/ata/libata-scsi.c7
-rw-r--r--include/linux/libata.h1
4 files changed, 15 insertions, 2 deletions
diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
index 5b8e8a0fab48..45586c1dbbdc 100644
--- a/drivers/ata/ahci.h
+++ b/drivers/ata/ahci.h
@@ -181,6 +181,8 @@ enum {
PORT_CMD_ALPE = (1 << 26), /* Aggressive Link PM enable */
PORT_CMD_ATAPI = (1 << 24), /* Device is ATAPI */
PORT_CMD_FBSCP = (1 << 22), /* FBS Capable Port */
+ PORT_CMD_ESP = (1 << 21), /* External Sata Port */
+ PORT_CMD_HPCP = (1 << 18), /* HotPlug Capable Port */
PORT_CMD_PMP = (1 << 17), /* PMP attached */
PORT_CMD_LIST_ON = (1 << 15), /* cmd list DMA engine running */
PORT_CMD_FIS_ON = (1 << 14), /* FIS DMA engine running */
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index d256a66158be..2fa551a5146e 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -1117,6 +1117,7 @@ static void ahci_port_init(struct device *dev, struct ata_port *ap,
int port_no, void __iomem *mmio,
void __iomem *port_mmio)
{
+ struct ahci_host_priv *hpriv = ap->host->private_data;
const char *emsg = NULL;
int rc;
u32 tmp;
@@ -1138,6 +1139,12 @@ static void ahci_port_init(struct device *dev, struct ata_port *ap,
writel(tmp, port_mmio + PORT_IRQ_STAT);
writel(1 << port_no, mmio + HOST_IRQ_STAT);
+
+ /* mark esata ports */
+ tmp = readl(port_mmio + PORT_CMD);
+ if ((tmp & PORT_CMD_HPCP) ||
+ ((tmp & PORT_CMD_ESP) && (hpriv->cap & HOST_CAP_SXS)))
+ ap->pflags |= ATA_PFLAG_EXTERNAL;
}
void ahci_init_controller(struct ata_host *host)
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 0d7f0da3a269..183a57bff935 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -2015,8 +2015,11 @@ static unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf)
VPRINTK("ENTER\n");
- /* set scsi removable (RMB) bit per ata bit */
- if (ata_id_removable(args->id))
+ /* set scsi removable (RMB) bit per ata bit, or if the
+ * AHCI port says it's external (Hotplug-capable, eSATA).
+ */
+ if (ata_id_removable(args->id) ||
+ (args->dev->link->ap->pflags & ATA_PFLAG_EXTERNAL))
hdr[1] |= (1 << 7);
if (args->dev->class == ATA_DEV_ZAC) {
diff --git a/include/linux/libata.h b/include/linux/libata.h
index c9cfbcdb8d14..83577f8fd15b 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -254,6 +254,7 @@ enum {
ATA_PFLAG_PIO32 = (1 << 20), /* 32bit PIO */
ATA_PFLAG_PIO32CHANGE = (1 << 21), /* 32bit PIO can be turned on/off */
+ ATA_PFLAG_EXTERNAL = (1 << 22), /* eSATA/external port */
/* struct ata_queued_cmd flags */
ATA_QCFLAG_ACTIVE = (1 << 0), /* cmd not yet ack'd to scsi lyer */