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authorJames Bottomley <James.Bottomley@HansenPartnership.com>2016-05-18 04:12:50 +0300
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2016-05-18 04:12:50 +0300
commite7ca7f9fa2cda220ba807620c992ce77c33a32ea (patch)
treefb8a6c1abc638c5a79645f4b9f44ece7c67187b4 /drivers/usb/storage
parent5f0dfb7a9bcc8139958f59ecb9bbd7e738ae702d (diff)
parentd65c8fff867a6450c58ce31572e883148a445ddf (diff)
downloadlinux-e7ca7f9fa2cda220ba807620c992ce77c33a32ea.tar.xz
Merge branch 'fixes' into misc
Diffstat (limited to 'drivers/usb/storage')
-rw-r--r--drivers/usb/storage/uas.c21
-rw-r--r--drivers/usb/storage/unusual_uas.h7
-rw-r--r--drivers/usb/storage/usb.c5
3 files changed, 30 insertions, 3 deletions
diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c
index 13e4cc31bc79..16bc679dc2fc 100644
--- a/drivers/usb/storage/uas.c
+++ b/drivers/usb/storage/uas.c
@@ -2,7 +2,7 @@
* USB Attached SCSI
* Note that this is not the same as the USB Mass Storage driver
*
- * Copyright Hans de Goede <hdegoede@redhat.com> for Red Hat, Inc. 2013 - 2014
+ * Copyright Hans de Goede <hdegoede@redhat.com> for Red Hat, Inc. 2013 - 2016
* Copyright Matthew Wilcox for Intel Corp, 2010
* Copyright Sarah Sharp for Intel Corp, 2010
*
@@ -781,6 +781,17 @@ static int uas_eh_bus_reset_handler(struct scsi_cmnd *cmnd)
return SUCCESS;
}
+static int uas_target_alloc(struct scsi_target *starget)
+{
+ struct uas_dev_info *devinfo = (struct uas_dev_info *)
+ dev_to_shost(starget->dev.parent)->hostdata;
+
+ if (devinfo->flags & US_FL_NO_REPORT_LUNS)
+ starget->no_report_luns = 1;
+
+ return 0;
+}
+
static int uas_slave_alloc(struct scsi_device *sdev)
{
struct uas_dev_info *devinfo =
@@ -824,7 +835,6 @@ static int uas_slave_configure(struct scsi_device *sdev)
if (devinfo->flags & US_FL_BROKEN_FUA)
sdev->broken_fua = 1;
- scsi_change_queue_depth(sdev, devinfo->qdepth - 2);
return 0;
}
@@ -832,6 +842,7 @@ static struct scsi_host_template uas_host_template = {
.module = THIS_MODULE,
.name = "uas",
.queuecommand = uas_queuecommand,
+ .target_alloc = uas_target_alloc,
.slave_alloc = uas_slave_alloc,
.slave_configure = uas_slave_configure,
.eh_abort_handler = uas_eh_abort_handler,
@@ -956,6 +967,12 @@ static int uas_probe(struct usb_interface *intf, const struct usb_device_id *id)
if (result)
goto set_alt0;
+ /*
+ * 1 tag is reserved for untagged commands +
+ * 1 tag to avoid off by one errors in some bridge firmwares
+ */
+ shost->can_queue = devinfo->qdepth - 2;
+
usb_set_intfdata(intf, shost);
result = scsi_add_host(shost, &intf->dev);
if (result)
diff --git a/drivers/usb/storage/unusual_uas.h b/drivers/usb/storage/unusual_uas.h
index ccc113e83d88..53341a77d89f 100644
--- a/drivers/usb/storage/unusual_uas.h
+++ b/drivers/usb/storage/unusual_uas.h
@@ -64,6 +64,13 @@ UNUSUAL_DEV(0x0bc2, 0x3312, 0x0000, 0x9999,
USB_SC_DEVICE, USB_PR_DEVICE, NULL,
US_FL_NO_ATA_1X),
+/* Reported-by: David Webb <djw@noc.ac.uk> */
+UNUSUAL_DEV(0x0bc2, 0x331a, 0x0000, 0x9999,
+ "Seagate",
+ "Expansion Desk",
+ USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+ US_FL_NO_REPORT_LUNS),
+
/* Reported-by: Hans de Goede <hdegoede@redhat.com> */
UNUSUAL_DEV(0x0bc2, 0x3320, 0x0000, 0x9999,
"Seagate",
diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c
index 43576ed31ccd..9de988a0f856 100644
--- a/drivers/usb/storage/usb.c
+++ b/drivers/usb/storage/usb.c
@@ -482,7 +482,7 @@ void usb_stor_adjust_quirks(struct usb_device *udev, unsigned long *fflags)
US_FL_NO_READ_DISC_INFO | US_FL_NO_READ_CAPACITY_16 |
US_FL_INITIAL_READ10 | US_FL_WRITE_CACHE |
US_FL_NO_ATA_1X | US_FL_NO_REPORT_OPCODES |
- US_FL_MAX_SECTORS_240);
+ US_FL_MAX_SECTORS_240 | US_FL_NO_REPORT_LUNS);
p = quirks;
while (*p) {
@@ -532,6 +532,9 @@ void usb_stor_adjust_quirks(struct usb_device *udev, unsigned long *fflags)
case 'i':
f |= US_FL_IGNORE_DEVICE;
break;
+ case 'j':
+ f |= US_FL_NO_REPORT_LUNS;
+ break;
case 'l':
f |= US_FL_NOT_LOCKABLE;
break;