diff options
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_file_ops.c')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_file_ops.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c b/drivers/infiniband/hw/ipath/ipath_file_ops.c index e7fbb31a48a..4277014d6f8 100644 --- a/drivers/infiniband/hw/ipath/ipath_file_ops.c +++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c @@ -742,7 +742,8 @@ static int ipath_manage_rcvq(struct ipath_portdata *pd, unsigned subport, * updated and correct itself, even in the face of software * bugs. */ - *(volatile u64 *)pd->port_rcvhdrtail_kvaddr = 0; + if (pd->port_rcvhdrtail_kvaddr) + ipath_clear_rcvhdrtail(pd); set_bit(INFINIPATH_R_PORTENABLE_SHIFT + pd->port_port, &dd->ipath_rcvctrl); } else @@ -1391,7 +1392,10 @@ static unsigned int ipath_poll_next(struct ipath_portdata *pd, pollflag = ipath_poll_hdrqfull(pd); head = ipath_read_ureg32(dd, ur_rcvhdrhead, pd->port_port); - tail = *(volatile u64 *)pd->port_rcvhdrtail_kvaddr; + if (pd->port_rcvhdrtail_kvaddr) + tail = ipath_get_rcvhdrtail(pd); + else + tail = ipath_read_ureg32(dd, ur_rcvhdrtail, pd->port_port); if (head != tail) pollflag |= POLLIN | POLLRDNORM; @@ -1932,7 +1936,8 @@ static int ipath_do_user_init(struct file *fp, * We explictly set the in-memory copy to 0 beforehand, so we don't * have to wait to be sure the DMA update has happened. */ - *(volatile u64 *)pd->port_rcvhdrtail_kvaddr = 0ULL; + if (pd->port_rcvhdrtail_kvaddr) + ipath_clear_rcvhdrtail(pd); set_bit(INFINIPATH_R_PORTENABLE_SHIFT + pd->port_port, &dd->ipath_rcvctrl); ipath_write_kreg(dd, dd->ipath_kregs->kr_rcvctrl, |