The patch titled
mmc: at91_mci: enable large data blocks
has been added to the -mm tree. Its filename is
mmc-at91_mci-enable-large-data-blocks.patch
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------------------------------------------------------
Subject: mmc: at91_mci: enable large data blocks
From: Wolfgang Muees <[email protected]>
This patch is setting some max_ variables for the IO elevator, so the
elevator will put requests for large data blocks to the driver. This is
critical for
a) speed
and
b) wear leveling of the flash chip controller: Otherwise the controller
will treat the SD card badly with millions of single 4 KByte write
commands. This will lead to a shorter life time for the SD cards.
Signed-off-by: Wolfgang Muees <[email protected]>
Signed-off-by: Nicolas Ferre <[email protected]>
Cc: Andrew Victor <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
---
drivers/mmc/host/at91_mci.c | 3 +++
1 file changed, 3 insertions(+)
diff -puN drivers/mmc/host/at91_mci.c~mmc-at91_mci-enable-large-data-blocks
drivers/mmc/host/at91_mci.c
--- a/drivers/mmc/host/at91_mci.c~mmc-at91_mci-enable-large-data-blocks
+++ a/drivers/mmc/host/at91_mci.c
@@ -934,6 +934,9 @@ static int __init at91_mci_probe(struct
mmc->max_blk_size = MCI_MAXBLKSIZE;
mmc->max_blk_count = MCI_BLKATONCE;
mmc->max_req_size = MCI_BUFSIZE;
+ mmc->max_phys_segs = MCI_BLKATONCE;
+ mmc->max_hw_segs = MCI_BLKATONCE;
+ mmc->max_seg_size = MCI_BUFSIZE;
host = mmc_priv(mmc);
host->mmc = mmc;
_
Patches currently in -mm which might be from [email protected] are
mmc-at91_mci-fix-pointer-errors.patch
mmc-at91_mci-fix-timeout-errors.patch
mmc-at91_mci-use-one-coherent-dma-buffer.patch
mmc-at91_mci-use-dma-buffer-for-read.patch
mmc-at91_mci-enable-large-data-blocks.patch
mmc-at91_mci-enable-mmc_cap_sdio_irq-only-when-it-actually-works.patch
mmc-at91_mci-introduce-per-mci-revision-conditional-code.patch
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