diff options
| author | Ralph Campbell <ralph.campbell@qlogic.com> | 2008-01-06 21:12:38 -0800 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2008-01-25 14:15:39 -0800 |
| commit | 4ea61b548bc93fb87cec6f52059851076e2ff54d (patch) | |
| tree | b48ddf0865c393b2245dbb131098901f6cc3f318 /drivers/infiniband/hw/ipath/ipath_init_chip.c | |
| parent | 60948a415859cb859e24f0dfe739069d66577466 (diff) | |
IB/ipath: Add flag and handling for chips with swapped register bug
The 6110 had a bug that caused some registers to be swapped; it was
fixed for the 7220 (and didn't affect the 6120 because it had fewer
registers). This adds a flag and related code to handle that, and
includes some minor cleanups in the same area.
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_init_chip.c')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_init_chip.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_init_chip.c b/drivers/infiniband/hw/ipath/ipath_init_chip.c index 3174c315999b..4471674975cd 100644 --- a/drivers/infiniband/hw/ipath/ipath_init_chip.c +++ b/drivers/infiniband/hw/ipath/ipath_init_chip.c @@ -528,12 +528,8 @@ static void enable_chip(struct ipath_devdata *dd, /* * Chip Errata bug 6641; even and odd qwords>3 are swapped. */ - if (i > 3) { - if (i & 1) - val = dd->ipath_pioavailregs_dma[i - 1]; - else - val = dd->ipath_pioavailregs_dma[i + 1]; - } + if (i > 3 && (dd->ipath_flags & IPATH_SWAP_PIOBUFS)) + val = dd->ipath_pioavailregs_dma[i ^ 1]; else val = dd->ipath_pioavailregs_dma[i]; dd->ipath_pioavailshadow[i] = le64_to_cpu(val); |