Hi,
This one takes care of a problem with the SGI IOC4 driver where it
hits DMA problems if the request grows too large.
Cheers,
Jes
Avoid requests larger than the number of SG table entries, to avoid
DMA timeouts.
Signed-off-by: Jes Sorensen <[email protected]>
----
drivers/ide/pci/sgiioc4.c | 8 +++++++-
1 files changed, 7 insertions(+), 1 deletion(-)
Index: linux-2.6/drivers/ide/pci/sgiioc4.c
===================================================================
--- linux-2.6.orig/drivers/ide/pci/sgiioc4.c
+++ linux-2.6/drivers/ide/pci/sgiioc4.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2003 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (C) 2003, 2006 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License
@@ -613,6 +613,12 @@
hwif->ide_dma_lostirq = &sgiioc4_ide_dma_lostirq;
hwif->ide_dma_timeout = &__ide_dma_timeout;
hwif->INB = &sgiioc4_INB;
+
+ /*
+ * Limit the request size to avoid DMA timeouts when
+ * requesting more entries than goes in the sg table.
+ */
+ hwif->rqsize = 127;
}
static int __devinit
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
