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| author | Robert Walsh <robert.walsh@qlogic.com> | 2007-06-18 14:24:35 -0700 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2007-07-09 20:12:25 -0700 |
| commit | e7340f04426416a6655ffaead4651bfb9e1b0848 (patch) | |
| tree | 1ce7d3c405bc9e4ea69871e40504b057eeb30e66 /drivers/infiniband/hw/ipath/ipath_fs.c | |
| parent | 380bf5d38f3cc2799ed2fae554f7af1c4b0ed35b (diff) | |
| download | blackbird-op-linux-e7340f04426416a6655ffaead4651bfb9e1b0848.tar.gz blackbird-op-linux-e7340f04426416a6655ffaead4651bfb9e1b0848.zip | |
IB/ipath: Fix maximum MTU reporting
Although our chip supports 4K MTUs, our driver doesn't yet support
this feature, so limit the maximum MTU to 2K until we get support for
4K MTUs implemented.
Signed-off-by: Robert Walsh <robert.walsh@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_fs.c')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_fs.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_fs.c b/drivers/infiniband/hw/ipath/ipath_fs.c index ebd5c7bd2cdb..40cf1bc90d74 100644 --- a/drivers/infiniband/hw/ipath/ipath_fs.c +++ b/drivers/infiniband/hw/ipath/ipath_fs.c @@ -257,9 +257,14 @@ static ssize_t atomic_port_info_read(struct file *file, char __user *buf, /* Notimpl InitType (actually, an SMA decision) */ /* VLHighLimit is 0 (only one VL) */ ; /* VLArbitrationHighCap is 0 (only one VL) */ + /* + * Note: the chips support a maximum MTU of 4096, but the driver + * hasn't implemented this feature yet, so set the maximum + * to 2048. + */ portinfo[10] = /* VLArbitrationLowCap is 0 (only one VL) */ /* InitTypeReply is SMA decision */ - (5 << 16) /* MTUCap 4096 */ + (4 << 16) /* MTUCap 2048 */ | (7 << 13) /* VLStallCount */ | (0x1f << 8) /* HOQLife */ | (1 << 4) |
