diff options
| author | Bryan O'Sullivan <bos@pathscale.com> | 2006-08-25 11:24:48 -0700 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2006-09-22 15:22:40 -0700 |
| commit | 30fc5c3130bdbc7cc051a2d6054ad38360d408a8 (patch) | |
| tree | 6928159aeed17f8a15ae705a0ce16551bef5811e /drivers/infiniband/hw/ipath/ipath_iba6120.c | |
| parent | e35d710d0c5b74bc9833d6a3791706bd577a3724 (diff) | |
IB/ipath: control receive polarity inversion
Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_iba6120.c')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_iba6120.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_iba6120.c b/drivers/infiniband/hw/ipath/ipath_iba6120.c index 3a7640be253..d86516d23df 100644 --- a/drivers/infiniband/hw/ipath/ipath_iba6120.c +++ b/drivers/infiniband/hw/ipath/ipath_iba6120.c @@ -654,6 +654,15 @@ static int ipath_pe_bringup_serdes(struct ipath_devdata *dd) val &= ~INFINIPATH_XGXS_RESET; change = 1; } + if (((val >> INFINIPATH_XGXS_RX_POL_SHIFT) & + INFINIPATH_XGXS_RX_POL_MASK) != dd->ipath_rx_pol_inv ) { + /* need to compensate for Tx inversion in partner */ + val &= ~(INFINIPATH_XGXS_RX_POL_MASK << + INFINIPATH_XGXS_RX_POL_SHIFT); + val |= dd->ipath_rx_pol_inv << + INFINIPATH_XGXS_RX_POL_SHIFT; + change = 1; + } if (change) ipath_write_kreg(dd, dd->ipath_kregs->kr_xgxsconfig, val); |