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_driver.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_driver.c')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_driver.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c index 3a15efee738..47c9d15557c 100644 --- a/drivers/infiniband/hw/ipath/ipath_driver.c +++ b/drivers/infiniband/hw/ipath/ipath_driver.c @@ -2116,5 +2116,22 @@ bail: return ret; } +int ipath_set_rx_pol_inv(struct ipath_devdata *dd, u8 new_pol_inv) +{ + u64 val; + if ( new_pol_inv > INFINIPATH_XGXS_RX_POL_MASK ) { + return -1; + } + if ( dd->ipath_rx_pol_inv != new_pol_inv ) { + dd->ipath_rx_pol_inv = new_pol_inv; + val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_xgxsconfig); + val &= ~(INFINIPATH_XGXS_RX_POL_MASK << + INFINIPATH_XGXS_RX_POL_SHIFT); + val |= ((u64)dd->ipath_rx_pol_inv) << + INFINIPATH_XGXS_RX_POL_SHIFT; + ipath_write_kreg(dd, dd->ipath_kregs->kr_xgxsconfig, val); + } + return 0; +} module_init(infinipath_init); module_exit(infinipath_cleanup); |