diff options
| author | Dave Olson <dave.olson@qlogic.com> | 2008-04-16 21:09:30 -0700 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2008-04-16 21:09:30 -0700 |
| commit | 1d7c2e529fb6d4143d294ade7d99e29cb6b3775f (patch) | |
| tree | 15bb2a68280fbefeca12ef1db4c47e9f0d386e86 /drivers/infiniband/hw/ipath/ipath_kernel.h | |
| parent | 0ab6b2b9abb692919902edb6606c3b898f2dac17 (diff) | |
IB/ipath: Enable reduced PIO update for HCAs that support it.
Newer HCAs have a threshold counter to reduce the number of DMAs the
chip makes to update the PIO buffer availability status bits. This
patch enables the feature.
Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_kernel.h')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_kernel.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h index 2447e85bf4f..cef3296efb9 100644 --- a/drivers/infiniband/hw/ipath/ipath_kernel.h +++ b/drivers/infiniband/hw/ipath/ipath_kernel.h @@ -349,6 +349,7 @@ struct ipath_devdata { u32 ipath_lastrpkts; /* pio bufs allocated per port */ u32 ipath_pbufsport; + u32 ipath_pioupd_thresh; /* update threshold, some chips */ /* * number of ports configured as max; zero is set to number chip * supports, less gives more pio bufs/port, etc. |