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authorHans de Goede <hdegoede@redhat.com>2015-04-21 11:20:32 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-04-28 12:48:57 +0200
commit8e779c6c4a398763c21371fe40f649206041dc1e (patch)
treea1c51f7ae771a724b2973ceda97639082632fd58 /drivers/usb
parentee136af4a064c2f61e2025873584d2c7ec93f4ae (diff)
uas: Set max_sectors_240 quirk for ASM1053 devices
Testing has shown that ASM1053 devices do not work properly with transfers larger than 240 sectors, so set max_sectors to 240 on these. Cc: stable@vger.kernel.org # 3.16 Reported-by: Steve Bangert <sbangert@frontier.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Tested-by: Steve Bangert <sbangert@frontier.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/storage/uas-detect.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/usb/storage/uas-detect.h b/drivers/usb/storage/uas-detect.h
index 63ae1619fdb8..f58caa9e6a27 100644
--- a/drivers/usb/storage/uas-detect.h
+++ b/drivers/usb/storage/uas-detect.h
@@ -74,7 +74,7 @@ static int uas_use_uas_driver(struct usb_interface *intf,
* this writing the following versions exist:
* ASM1051 - no uas support version
* ASM1051 - with broken (*) uas support
- * ASM1053 - with working uas support
+ * ASM1053 - with working uas support, but problems with large xfers
* ASM1153 - with working uas support
*
* Devices with these chips re-use a number of device-ids over the
@@ -104,6 +104,9 @@ static int uas_use_uas_driver(struct usb_interface *intf,
} else if (usb_ss_max_streams(&eps[1]->ss_ep_comp) == 32) {
/* Possibly an ASM1051, disable uas */
flags |= US_FL_IGNORE_UAS;
+ } else {
+ /* ASM1053, these have issues with large transfers */
+ flags |= US_FL_MAX_SECTORS_240;
}
}