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| author | Hans de Goede <hdegoede@redhat.com> | 2015-04-21 11:20:32 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-05-13 05:14:28 -0700 |
| commit | ae28c480a79f6aa10d1286cdf4b7982f1cadf6c0 (patch) | |
| tree | db4656c575aee862d7bdcfd7051ad1cdb0268c82 /drivers | |
| parent | f59aa94d0049794968867d843e5be50af2e7a470 (diff) | |
| download | lwn-ae28c480a79f6aa10d1286cdf4b7982f1cadf6c0.tar.gz lwn-ae28c480a79f6aa10d1286cdf4b7982f1cadf6c0.zip | |
uas: Set max_sectors_240 quirk for ASM1053 devices
commit 8e779c6c4a398763c21371fe40f649206041dc1e upstream.
Testing has shown that ASM1053 devices do not work properly with transfers
larger than 240 sectors, so set max_sectors to 240 on these.
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')
| -rw-r--r-- | drivers/usb/storage/uas-detect.h | 5 |
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; } } |