From 327a338d4fd018d33e7cacde46c0d82622b4bda8 Mon Sep 17 00:00:00 2001 From: Arthur Jones Date: Thu, 2 Aug 2007 14:46:29 -0700 Subject: [PATCH] IB/ipath: iba6110 rev4 GPIO counters support On iba6110 rev4, support for three more IB counters were added. The LocalLinkIntegrityError counter, the ExcessiveBufferOverrunErrors counter and support for error counting of flow control packets on an invalid VL. These counters trigger GPIO interrupts and the sw keeps track of the counts. Since we also use GPIO interrupts to signal packet reception, we need to turn off the fast interrupts, or we risk losing a GPIO interrupt. Signed-off-by: Arthur Jones Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_iba6110.c | 8 ++++++++ drivers/infiniband/hw/ipath/ipath_intr.c | 4 ++-- 2 files changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/hw/ipath/ipath_iba6110.c b/drivers/infiniband/hw/ipath/ipath_iba6110.c index 650745d83f..e1c5998887 100644 --- a/drivers/infiniband/hw/ipath/ipath_iba6110.c +++ b/drivers/infiniband/hw/ipath/ipath_iba6110.c @@ -1559,6 +1559,14 @@ static int ipath_ht_early_init(struct ipath_devdata *dd) ipath_dev_err(dd, "Unsupported InfiniPath serial " "number %.16s!\n", dd->ipath_serial); + if (dd->ipath_minrev >= 4) { + /* Rev4+ reports extra errors via internal GPIO pins */ + dd->ipath_flags |= IPATH_GPIO_ERRINTRS; + dd->ipath_gpio_mask |= IPATH_GPIO_ERRINTR_MASK; + ipath_write_kreg(dd, dd->ipath_kregs->kr_gpio_mask, + dd->ipath_gpio_mask); + } + return 0; } diff --git a/drivers/infiniband/hw/ipath/ipath_intr.c b/drivers/infiniband/hw/ipath/ipath_intr.c index b29fe7e9b1..11b361408a 100644 --- a/drivers/infiniband/hw/ipath/ipath_intr.c +++ b/drivers/infiniband/hw/ipath/ipath_intr.c @@ -1085,8 +1085,8 @@ irqreturn_t ipath_intr(int irq, void *data) * GPIO_2 indicates (on some HT4xx boards) that a packet * has arrived for Port 0. Checking for this * is controlled by flag IPATH_GPIO_INTR. - * GPIO_3..5 on IBA6120 Rev2 chips indicate errors - * that we need to count. Checking for this + * GPIO_3..5 on IBA6120 Rev2 and IBA6110 Rev4 chips indicate + * errors that we need to count. Checking for this * is controlled by flag IPATH_GPIO_ERRINTRS. */ u32 gpiostatus; -- 2.39.5