IB/ipath: Remove dead code for user process waiting for send buffer
At one point in time there was code to allow a user process to
wait for a send buffer if none were available. This feature was
never used and most of the code was removed. This removes
some missed unused code.
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/drivers/infiniband/hw/ipath/ipath_intr.c b/drivers/infiniband/hw/ipath/ipath_intr.c
index 8f3718c..ad41ccc 100644
--- a/drivers/infiniband/hw/ipath/ipath_intr.c
+++ b/drivers/infiniband/hw/ipath/ipath_intr.c
@@ -920,29 +920,6 @@
}
}
-static void handle_port_pioavail(struct ipath_devdata *dd)
-{
- u32 i;
- /*
- * start from port 1, since for now port 0 is never using
- * wait_event for PIO
- */
- for (i = 1; dd->ipath_portpiowait && i < dd->ipath_cfgports; i++) {
- struct ipath_portdata *pd = dd->ipath_pd[i];
-
- if (pd && pd->port_cnt &&
- dd->ipath_portpiowait & (1U << i)) {
- clear_bit(i, &dd->ipath_portpiowait);
- if (test_bit(IPATH_PORT_WAITING_PIO,
- &pd->port_flag)) {
- clear_bit(IPATH_PORT_WAITING_PIO,
- &pd->port_flag);
- wake_up_interruptible(&pd->port_wait);
- }
- }
- }
-}
-
static void handle_layer_pioavail(struct ipath_devdata *dd)
{
int ret;
@@ -1195,9 +1172,6 @@
ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl,
dd->ipath_sendctrl);
- if (dd->ipath_portpiowait)
- handle_port_pioavail(dd);
-
handle_layer_pioavail(dd);
}
diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h
index 1ef82d6..65f7c7f 100644
--- a/drivers/infiniband/hw/ipath/ipath_kernel.h
+++ b/drivers/infiniband/hw/ipath/ipath_kernel.h
@@ -457,8 +457,6 @@
unsigned long ipath_rcvctrl;
/* shadow kr_sendctrl */
unsigned long ipath_sendctrl;
- /* ports waiting for PIOavail intr */
- unsigned long ipath_portpiowait;
unsigned long ipath_lastcancel; /* to not count armlaunch after cancel */
/* value we put in kr_rcvhdrcnt */
@@ -759,8 +757,6 @@
/* portdata flag bit offsets */
/* waiting for a packet to arrive */
#define IPATH_PORT_WAITING_RCV 2
- /* waiting for a PIO buffer to be available */
-#define IPATH_PORT_WAITING_PIO 3
/* master has not finished initializing */
#define IPATH_PORT_MASTER_UNINIT 4
/* waiting for an urgent packet to arrive */