diff options
Diffstat (limited to 'drivers/infiniband/hw')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_common.h | 2 | ||||
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_driver.c | 16 |
2 files changed, 18 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_common.h b/drivers/infiniband/hw/ipath/ipath_common.h index 54139d39818..a4136780352 100644 --- a/drivers/infiniband/hw/ipath/ipath_common.h +++ b/drivers/infiniband/hw/ipath/ipath_common.h @@ -78,6 +78,8 @@ #define IPATH_IB_LINKINIT 3 #define IPATH_IB_LINKDOWN_SLEEP 4 #define IPATH_IB_LINKDOWN_DISABLE 5 +#define IPATH_IB_LINK_LOOPBACK 6 /* enable local loopback */ +#define IPATH_IB_LINK_EXTERNAL 7 /* normal, disable local loopback */ /* * stats maintained by the driver. For now, at least, this is global diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c index ae7f21a0cdc..c2fe5417ff4 100644 --- a/drivers/infiniband/hw/ipath/ipath_driver.c +++ b/drivers/infiniband/hw/ipath/ipath_driver.c @@ -1662,6 +1662,22 @@ int ipath_set_linkstate(struct ipath_devdata *dd, u8 newstate) lstate = IPATH_LINKACTIVE; break; + case IPATH_IB_LINK_LOOPBACK: + dev_info(&dd->pcidev->dev, "Enabling IB local loopback\n"); + dd->ipath_ibcctrl |= INFINIPATH_IBCC_LOOPBACK; + ipath_write_kreg(dd, dd->ipath_kregs->kr_ibcctrl, + dd->ipath_ibcctrl); + ret = 0; + goto bail; // no state change to wait for + + case IPATH_IB_LINK_EXTERNAL: + dev_info(&dd->pcidev->dev, "Disabling IB local loopback (normal)\n"); + dd->ipath_ibcctrl &= ~INFINIPATH_IBCC_LOOPBACK; + ipath_write_kreg(dd, dd->ipath_kregs->kr_ibcctrl, + dd->ipath_ibcctrl); + ret = 0; + goto bail; // no state change to wait for + default: ipath_dbg("Invalid linkstate 0x%x requested\n", newstate); ret = -EINVAL; |