chkerrpkts = 1;
dd->ipath_lastrcvhdrqtails[i] = tl;
pd->port_hdrqfull++;
- if (test_bit(IPATH_PORT_WAITING_OVERFLOW,
- &pd->port_flag)) {
- clear_bit(
- IPATH_PORT_WAITING_OVERFLOW,
- &pd->port_flag);
- set_bit(
- IPATH_PORT_WAITING_OVERFLOW,
- &pd->int_flag);
- wake_up_interruptible(
- &pd->port_wait);
- }
+ /* flush hdrqfull so that poll() sees it */
+ wmb();
+ wake_up_interruptible(&pd->port_wait);
}
}
}
int i;
int rcvdint = 0;
+ /* test_bit below needs this... */
+ rmb();
portr = ((istat >> INFINIPATH_I_RCVAVAIL_SHIFT) &
dd->ipath_i_rcvavail_mask)
| ((istat >> INFINIPATH_I_RCVURG_SHIFT) &
for (i = 1; i < dd->ipath_cfgports; i++) {
struct ipath_portdata *pd = dd->ipath_pd[i];
if (portr & (1 << i) && pd && pd->port_cnt) {
- if (test_bit(IPATH_PORT_WAITING_RCV,
- &pd->port_flag)) {
- clear_bit(IPATH_PORT_WAITING_RCV,
- &pd->port_flag);
- set_bit(IPATH_PORT_WAITING_RCV,
- &pd->int_flag);
+ if (test_and_clear_bit(IPATH_PORT_WAITING_RCV,
+ &pd->port_flag)) {
clear_bit(i + INFINIPATH_R_INTRAVAIL_SHIFT,
&dd->ipath_rcvctrl);
wake_up_interruptible(&pd->port_wait);
rcvdint = 1;
- } else if (test_bit(IPATH_PORT_WAITING_URG,
- &pd->port_flag)) {
- clear_bit(IPATH_PORT_WAITING_URG,
- &pd->port_flag);
- set_bit(IPATH_PORT_WAITING_URG,
- &pd->int_flag);
+ } else if (test_and_clear_bit(IPATH_PORT_WAITING_URG,
+ &pd->port_flag)) {
+ pd->port_urgent++;
wake_up_interruptible(&pd->port_wait);
}
}