From 59e457122982534f1c0fc1171056d0d8b1ed9f68 Mon Sep 17 00:00:00 2001 From: Satha Rao Date: Fri, 3 Jan 2025 21:01:35 +0530 Subject: [PATCH] vdpa/octeon_ep: handle device config change events The first interrupt of the device is used to notify the host about device configuration changes, such as link status updates. The ISR configuration area is updated to indicate a config change event when triggered. Signed-off-by: Satha Rao Reviewed-by: Dan Carpenter Acked-by: Jason Wang Signed-off-by: Shijith Thotton Message-Id: <20250103153226.1933479-2-sthotton@marvell.com> Signed-off-by: Michael S. Tsirkin --- drivers/vdpa/octeon_ep/octep_vdpa_main.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/vdpa/octeon_ep/octep_vdpa_main.c b/drivers/vdpa/octeon_ep/octep_vdpa_main.c index e9c3e57b321f..4d56be64ae56 100644 --- a/drivers/vdpa/octeon_ep/octep_vdpa_main.c +++ b/drivers/vdpa/octeon_ep/octep_vdpa_main.c @@ -71,6 +71,14 @@ static irqreturn_t octep_vdpa_intr_handler(int irq, void *data) } } + /* Check for config interrupt. Config uses the first interrupt */ + if (unlikely(irq == oct_hw->irqs[0] && ioread8(oct_hw->isr))) { + iowrite8(0, oct_hw->isr); + + if (oct_hw->config_cb.callback) + oct_hw->config_cb.callback(oct_hw->config_cb.private); + } + return IRQ_HANDLED; } -- 2.25.1