From 9ab4295d1d9ab10a249aea002060685f935a528c Mon Sep 17 00:00:00 2001 From: Ralph Campbell Date: Fri, 12 Oct 2007 20:48:06 -0700 Subject: 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 Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_intr.c | 26 -------------------------- drivers/infiniband/hw/ipath/ipath_kernel.h | 4 ---- 2 files changed, 30 deletions(-) diff --git a/drivers/infiniband/hw/ipath/ipath_intr.c b/drivers/infiniband/hw/ipath/ipath_intr.c index 8f3718c1694..ad41cccd2e9 100644 --- a/drivers/infiniband/hw/ipath/ipath_intr.c +++ b/drivers/infiniband/hw/ipath/ipath_intr.c @@ -920,29 +920,6 @@ static noinline void ipath_bad_regread(struct ipath_devdata *dd) } } -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 @@ irqreturn_t ipath_intr(int irq, void *data) 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 1ef82d6bf37..65f7c7f7b5d 100644 --- a/drivers/infiniband/hw/ipath/ipath_kernel.h +++ b/drivers/infiniband/hw/ipath/ipath_kernel.h @@ -457,8 +457,6 @@ struct ipath_devdata { 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 @@ int ipath_set_rx_pol_inv(struct ipath_devdata *dd, u8 new_pol_inv); /* 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 */ -- cgit v1.2.3