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| author | Dave Olson <dave.olson@qlogic.com> | 2010-06-17 23:13:44 +0000 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2010-07-06 14:13:20 -0700 |
| commit | fce24a9d28f8b99fd0eacc14e252ab4fca9527a7 (patch) | |
| tree | 590717ce8bd0e8a63e072b4bd79b99be69c3b8c8 /drivers/infiniband/hw/qib/qib.h | |
| parent | 67a3e12b05e055c0415c556a315a3d3eb637e29e (diff) | |
| download | linux-fce24a9d28f8b99fd0eacc14e252ab4fca9527a7.tar.gz | |
IB/qib: Don't mark VL15 bufs as WC to avoid a rare 7322 chip problem
Don't set write combining via PAT on the VL15 buffers to avoid a rare
problem with unaligned writes from interrupt-flushed store buffers.
Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/qib/qib.h')
| -rw-r--r-- | drivers/infiniband/hw/qib/qib.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/qib/qib.h b/drivers/infiniband/hw/qib/qib.h index 32d9208efcff..3593983df7ba 100644 --- a/drivers/infiniband/hw/qib/qib.h +++ b/drivers/infiniband/hw/qib/qib.h @@ -686,6 +686,7 @@ struct qib_devdata { void __iomem *piobase; /* mem-mapped pointer to base of user chip regs (if using WC PAT) */ u64 __iomem *userbase; + void __iomem *piovl15base; /* base of VL15 buffers, if not WC */ /* * points to area where PIOavail registers will be DMA'ed. * Has to be on a page of it's own, because the page will be |