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  1. 25 5月, 2015 2 次提交
  3. 18 5月, 2015 1 次提交
  5. 08 5月, 2015 2 次提交
  7. 06 5月, 2015 2 次提交
    • C
      mmc: card: Don't access RPMB partitions for normal read/write · 4e93b9a6
      由 Chuanxiao Dong 提交于 
      During kernel boot, it will try to read some logical sectors
of each block device node for the possible partition table.

But since RPMB partition is special and can not be accessed
by normal eMMC read / write CMDs, it will cause below error
messages during kernel boot:
...
 mmc0: Got data interrupt 0x00000002 even though no data operation was in progress.
 mmcblk0rpmb: error -110 transferring data, sector 0, nr 32, cmd response 0x900, card status 0xb00
 mmcblk0rpmb: retrying using single block read
 mmcblk0rpmb: timed out sending r/w cmd command, card status 0x400900
 mmcblk0rpmb: timed out sending r/w cmd command, card status 0x400900
 mmcblk0rpmb: timed out sending r/w cmd command, card status 0x400900
 mmcblk0rpmb: timed out sending r/w cmd command, card status 0x400900
 mmcblk0rpmb: timed out sending r/w cmd command, card status 0x400900
 mmcblk0rpmb: timed out sending r/w cmd command, card status 0x400900
 end_request: I/O error, dev mmcblk0rpmb, sector 0
 Buffer I/O error on device mmcblk0rpmb, logical block 0
 end_request: I/O error, dev mmcblk0rpmb, sector 8
 Buffer I/O error on device mmcblk0rpmb, logical block 1
 end_request: I/O error, dev mmcblk0rpmb, sector 16
 Buffer I/O error on device mmcblk0rpmb, logical block 2
 end_request: I/O error, dev mmcblk0rpmb, sector 24
 Buffer I/O error on device mmcblk0rpmb, logical block 3
...

This patch will discard the access request in eMMC queue if
it is RPMB partition access request. By this way, it avoids
trigger above error messages.

Fixes: 090d25fe ("mmc: core: Expose access to RPMB partition")
Signed-off-by: NYunpeng Gao <yunpeng.gao@intel.com>
Signed-off-by: NChuanxiao Dong <chuanxiao.dong@intel.com>
Tested-by: NMichael Shigorin <mike@altlinux.org>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
      4e93b9a6
    • T
      mmc: sh_mmcif: Fix timeout value for command request · bad4371d
      由 Takeshi Kihara 提交于 
      f9fd54f2 ("mmc: sh_mmcif: Use msecs_to_jiffies() for host->timeout")
changed the timeout value from 1000 jiffies to 1s. In the case where
HZ is 1000 the values are the same. However, for smaller HZ values the
timeout is now smaller, 1s instead of 10s in the case of HZ=100.

Since the timeout occurs in spite of a normal data transfer a timeout of
10s seems more appropriate. This restores the previous timeout in the
case where HZ=100 and results in an increase over the previous timeout
for larger values of HZ.

Fixes: f9fd54f2 ("mmc: sh_mmcif: Use msecs_to_jiffies() for host->timeout")
Signed-off-by: NTakeshi Kihara <takeshi.kihara.df@renesas.com>
[horms: rewrote changelog to refer to HZ]
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>
Signed-off-by: NYoshihiro Kaneko <ykaneko0929@gmail.com>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
      bad4371d
  9. 04 5月, 2015 1 次提交
  11. 17 4月, 2015 2 次提交
  13. 11 4月, 2015 1 次提交
    • J
      sd, mmc, virtio_blk, string_helpers: fix block size units · b9f28d86
      由 James Bottomley 提交于 
      The current string_get_size() overflows when the device size goes over
2^64 bytes because the string helper routine computes the suffix from
the size in bytes.  However, the entirety of Linux thinks in terms of
blocks, not bytes, so this will artificially induce an overflow on very
large devices.  Fix this by making the function string_get_size() take
blocks and the block size instead of bytes.  This should allow us to
keep working until the current SCSI standard overflows.

Also fix virtio_blk and mmc (both of which were also artificially
multiplying by the block size to pass a byte side to string_get_size()).

The mathematics of this is pretty simple:  we're taking a product of
size in blocks (S) and block size (B) and trying to re-express this in
exponential form: S*B = R*N^E (where N, the exponent is either 1000 or
1024) and R < N.  Mathematically, S = RS*N^ES and B=RB*N^EB, so if RS*RB
< N it's easy to see that S*B = RS*RB*N^(ES+EB).  However, if RS*BS > N,
we can see that this can be re-expressed as RS*BS = R*N (where R =
RS*BS/N < N) so the whole exponent becomes R*N^(ES+EB+1)

[jejb: fix incorrect 32 bit do_div spotted by kbuild test robot <fengguang.wu@intel.com>]
Acked-by: NUlf Hansson <ulf.hansson@linaro.org>
Reviewed-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NJames Bottomley <JBottomley@Odin.com>
      b9f28d86
  15. 10 4月, 2015 6 次提交
  17. 09 4月, 2015 7 次提交
  19. 08 4月, 2015 2 次提交
  21. 02 4月, 2015 1 次提交
  23. 01 4月, 2015 1 次提交
  25. 31 3月, 2015 6 次提交
  27. 28 3月, 2015 1 次提交
  29. 27 3月, 2015 3 次提交
  31. 25 3月, 2015 2 次提交