When Ethernet function goes up the driver updates the device.
Add support to device quiesce operation as a result of netdev down
event.
Since this operation might not be supported by the device yet a warning
is printed and not error.
While there fix the error message in the netdev up event.
Signed-off-by: Yuval Shaia <yuval.shaia@xxxxxxxxxx>
---
drivers/infiniband/hw/vmw_pvrdma/pvrdma_dev_api.h | 1 +
drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c | 11 ++++++++++-
2 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_dev_api.h b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_dev_api.h
index 6fd5a8f4e2f6..fe966393991c 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_dev_api.h
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_dev_api.h
@@ -167,6 +167,7 @@ enum pvrdma_device_ctl {
PVRDMA_DEVICE_CTL_ACTIVATE, /* Activate device. */
PVRDMA_DEVICE_CTL_UNQUIESCE, /* Unquiesce device. */
PVRDMA_DEVICE_CTL_RESET, /* Reset device. */
+ PVRDMA_DEVICE_CTL_QUIESCE, /* Quiesce device. */
};
enum pvrdma_intr_vector {
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c
index a5719899f49a..0183faa2f54d 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_main.c
@@ -701,6 +701,15 @@ static void pvrdma_netdevice_event_handle(struct pvrdma_dev *dev,
switch (event) {
case NETDEV_REBOOT:
case NETDEV_DOWN:
+ pvrdma_write_reg(dev, PVRDMA_REG_CTL,
+ PVRDMA_DEVICE_CTL_QUIESCE);
+
+ mb();
+
+ if (pvrdma_read_reg(dev, PVRDMA_REG_ERR))
+ dev_warn(&dev->pdev->dev,
+ "failed to quiesce device during link down\n");
+
pvrdma_dispatch_event(dev, 1, IB_EVENT_PORT_ERR);
break;
case NETDEV_UP:
@@ -711,7 +720,7 @@ static void pvrdma_netdevice_event_handle(struct pvrdma_dev *dev,
if (pvrdma_read_reg(dev, PVRDMA_REG_ERR))
dev_err(&dev->pdev->dev,
- "failed to activate device during link up\n");
+ "failed to unquiesce device during link up\n");
else
pvrdma_dispatch_event(dev, 1, IB_EVENT_PORT_ACTIVE);
break;
--
2.17.1
