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| author | Hans de Goede <hdegoede@redhat.com> | 2015-04-21 11:20:31 +0200 |
|---|---|---|
| committer | Sasha Levin <sasha.levin@oracle.com> | 2015-05-17 19:12:40 -0400 |
| commit | f6283d7d0c92f3b1d8b7eb68ffa3b6deee1798de (patch) | |
| tree | fb3ee2bccdc90efb41b2adc71560a2f3464b54b7 /Documentation/kernel-parameters.txt | |
| parent | e5e3b3149308e9b104eb439606075a947041b33b (diff) | |
| download | lwn-f6283d7d0c92f3b1d8b7eb68ffa3b6deee1798de.tar.gz lwn-f6283d7d0c92f3b1d8b7eb68ffa3b6deee1798de.zip | |
uas: Add US_FL_MAX_SECTORS_240 flag
[ Upstream commit ee136af4a064c2f61e2025873584d2c7ec93f4ae ]
The usb-storage driver sets max_sectors = 240 in its scsi-host template,
for uas we do not want to do that for all devices, but testing has shown
that some devices need it.
This commit adds a US_FL_MAX_SECTORS_240 flag for such devices, and
implements support for it in uas.c, while at it it also adds support
for US_FL_MAX_SECTORS_64 to uas.c.
Cc: stable@vger.kernel.org # 3.16
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index f4c71d4a9ba3..61f9273d0c46 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -3644,6 +3644,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted. READ_CAPACITY_16 command); f = NO_REPORT_OPCODES (don't use report opcodes command, uas only); + g = MAX_SECTORS_240 (don't transfer more than + 240 sectors at a time, uas only); h = CAPACITY_HEURISTICS (decrease the reported device capacity by one sector if the number is odd); |