diff options
| author |   Ralph Campbell <ralph.campbell@qlogic.com> | 2010-06-23 15:58:31 +0000 |
|---|---|---|
| committer |   Roland Dreier <rolandd@cisco.com> | 2010-07-21 11:39:31 -0700 |
| commit | 2d978a953b874bac418e0b9475edd1b9125281f6 (patch) | |
| tree | 31896878af7d5619cb93f61ac8c02cf66aef78a7 /drivers/infiniband/hw | |
| parent | IB/qib: Use generic_file_llseek (diff) | |
| download | linux-dev-2d978a953b874bac418e0b9475edd1b9125281f6.tar.xz linux-dev-2d978a953b874bac418e0b9475edd1b9125281f6.zip | |
IB/qib: Turn off IB latency mode
Turn off IB latency mode. This improves link quality for slower
process chips.
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw')
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_iba7322.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/qib/qib_iba7322.c b/drivers/infiniband/hw/qib/qib_iba7322.c index 5eedf83e2c3b..fc14ef8e5597 100644 --- a/drivers/infiniband/hw/qib/qib_iba7322.c +++ b/drivers/infiniband/hw/qib/qib_iba7322.c @@ -7271,6 +7271,8 @@ static int serdes_7322_init(struct qib_pportdata *ppd) ibsd_wr_allchans(ppd, 20, (4 << 13), BMASK(15, 13)); /* SDR */ data = qib_read_kreg_port(ppd, krp_serdesctrl); + /* Turn off IB latency mode */ + data &= ~SYM_MASK(IBSerdesCtrl_0, IB_LAT_MODE); qib_write_kreg_port(ppd, krp_serdesctrl, data | SYM_MASK(IBSerdesCtrl_0, RXLOSEN)); |