| commit | fd4b97583be1a1e57234713c25f6e81bc0411cb0 | |
| author | Matthew Dillon <dillon@apollo.backplane.com> | |
| Sat, 29 Oct 2016 04:48:11 +0000 (28 21:48 -0700) | ||
| committer | Matthew Dillon <dillon@apollo.backplane.com> | |
| Sat, 29 Oct 2016 05:14:54 +0000 (28 22:14 -0700) | ||
| tree | 07cf56334899b914cae04474503b01231f377383 | treesnapshot (tar.gz zip) |
| parent | f1591f08811f69cff80209cdee0b498dc92356ab | commitdiff |
kernel - Fix mmcsd read/write issues
* b_resid was not being set to 0 on a successful read or write, resulting
in random short-read and short-write returns for requests. Fixing this
fixes nominal block I/O via the mmcsd disk device.
* bus/mmc now uses tsleep() instead of DELAY for the 10ms pause in
request/command wait loops.
* bus/mmc reduces the TIMEOUT from 10 seconds to 1 second after the first
TIMEOUT, only increasing it back to 10 seconds when timeouts stop
occurring. This reduces boot-time delays when a mmc port is dead or
powered down.
* b_resid was not being set to 0 on a successful read or write, resulting
in random short-read and short-write returns for requests. Fixing this
fixes nominal block I/O via the mmcsd disk device.
* bus/mmc now uses tsleep() instead of DELAY for the 10ms pause in
request/command wait loops.
* bus/mmc reduces the TIMEOUT from 10 seconds to 1 second after the first
TIMEOUT, only increasing it back to 10 seconds when timeouts stop
occurring. This reduces boot-time delays when a mmc port is dead or
powered down.
| sys/bus/mmc/mmc.c | diffblobblamehistory | |
| sys/dev/disk/mmcsd/mmcsd.c | diffblobblamehistory |