From: Satha Rao <skoteshwar@xxxxxxxxxxx>
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 <skoteshwar@xxxxxxxxxxx>
Signed-off-by: Shijith Thotton <sthotton@xxxxxxxxxxx>
---
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 482c178a5221..6db951c6cb92 100644
--- a/drivers/vdpa/octeon_ep/octep_vdpa_main.c
+++ b/drivers/vdpa/octeon_ep/octep_vdpa_main.c
@@ -74,6 +74,14 @@ static irqreturn_t octep_vdpa_intr_handler(int irq, void *data)
}
}
+ /* Check for config interrupt. Config uses the first interrupt */
+ if (unlikely(ring_start == 0 && ioread8(oct_hw->isr))) {
+ iowrite8(0, oct_hw->isr);
+
+ if (likely(oct_hw->config_cb.callback))
+ oct_hw->config_cb.callback(oct_hw->config_cb.private);
+ }
+
return IRQ_HANDLED;
}
--
2.25.1
