[openib-general] [PATCH][5/11] IB/mthca: fix reset value endianness

[Roland Dreier]

MTHCA_RESET_VALUE must always be swapped, since the HCA expects to see
it in big-endian order and we write it with writel.  This means on
little-endian systems we have to swap it to big-endian order before
writing, and on big-endian systems we need to swap it to make up for
the additional swap that writel will do.  This fixes resetting the HCA
on big-endian machines.

Signed-off-by: Roland Dreier <roland at topspin.com>


--- linux-export.orig/drivers/infiniband/hw/mthca/mthca_reset.c	2005-03-02 20:26:02.970843287 -0800
+++ linux-export/drivers/infiniband/hw/mthca/mthca_reset.c	2005-03-02 20:26:12.219835642 -0800
@@ -50,7 +50,7 @@
 	struct pci_dev *bridge = NULL;
 
 #define MTHCA_RESET_OFFSET 0xf0010
-#define MTHCA_RESET_VALUE  cpu_to_be32(1)
+#define MTHCA_RESET_VALUE  swab32(1)
 
 	/*
 	 * Reset the chip.  This is somewhat ugly because we have to