diff options
| author | Dave Olson <dave.olson@qlogic.com> | 2008-04-16 21:01:12 -0700 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2008-04-16 21:01:12 -0700 |
| commit | 826d801009fb3c82832f2d92149446cce354bf61 (patch) | |
| tree | 564534dee75be00b019b78b130ec6eb7e5a81e7d /drivers/infiniband/hw/ipath/ipath_kernel.h | |
| parent | 5d1ce03dd335abaef50dc615137cac2a22c5cee0 (diff) | |
IB/ipath: Enable 4KB MTU
Enable use of 4KB MTU. Since the driver uses more pinned memory for
receive buffers when the 4KB MTU is enabled, whether or not the fabric
supports that MTU, add a "mtu4096" module parameter that can be used to
limit the MTU to 2KB when it is known that 4KB MTUs can't be used
anyway.
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 59dc8951624..70c0a0dd693 100644 --- a/drivers/infiniband/hw/ipath/ipath_kernel.h +++ b/drivers/infiniband/hw/ipath/ipath_kernel.h @@ -1066,6 +1066,7 @@ dma_addr_t ipath_map_single(struct pci_dev *, void *, size_t, int); #endif extern unsigned ipath_debug; /* debugging bit mask */ +extern unsigned ipath_mtu4096; #define IPATH_MAX_PARITY_ATTEMPTS 10000 /* max times to try recovery */ |