From: Anuradha Karuppiah <anurad...@cumulusnetworks.com>
IFF_PROTODOWN can be set by user space applications like MLAG on detecting
errors on a switch port. This patch provides sample switch driver changes
for handling IFF_PROTODOWN. Rocker PHYS disables the port in response to
protodown.
Note: I understand Scott has some rocker changes on hold. I will re-spin
this patch once his changes are in.
Signed-off-by: Anuradha Karuppiah <anurad...@cumulusnetworks.com>
Signed-off-by: Andy Gospodarek <go...@cumulusnetworks.com>
Signed-off-by: Roopa Prabhu <ro...@cumulusnetworks.com>
Signed-off-by: Wilson Kok <w...@cumulusnetworks.com>
---
drivers/net/ethernet/rocker/rocker.c | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/rocker/rocker.c
b/drivers/net/ethernet/rocker/rocker.c
index a87b177..e3084e3 100644
--- a/drivers/net/ethernet/rocker/rocker.c
+++ b/drivers/net/ethernet/rocker/rocker.c
@@ -3838,7 +3838,8 @@ static int rocker_port_open(struct net_device *dev)
napi_enable(&rocker_port->napi_tx);
napi_enable(&rocker_port->napi_rx);
- rocker_port_set_enable(rocker_port, true);
+ if (!(dev->flags & IFF_PROTO_DOWN))
+ rocker_port_set_enable(rocker_port, true);
netif_start_queue(dev);
return 0;
@@ -4238,6 +4239,18 @@ static int rocker_port_swdev_port_stp_update(struct
net_device *dev, u8 state)
return rocker_port_stp_update(rocker_port, state);
}
+static int rocker_port_swdev_port_phy_state_set(struct net_device *dev,
+ bool enable)
+{
+ struct rocker_port *rocker_port = netdev_priv(dev);
+
+ if (enable && (dev->flags & IFF_UP) && !(dev->flags & IFF_PROTO_DOWN))
+ rocker_port_set_enable(rocker_port, true);
+ else
+ rocker_port_set_enable(rocker_port, false);
+ return 0;
+}
+
static int rocker_port_swdev_fib_ipv4_add(struct net_device *dev,
__be32 dst, int dst_len,
struct fib_info *fi,
@@ -4268,6 +4281,7 @@ static const struct swdev_ops rocker_port_swdev_ops = {
.swdev_port_stp_update = rocker_port_swdev_port_stp_update,
.swdev_fib_ipv4_add = rocker_port_swdev_fib_ipv4_add,
.swdev_fib_ipv4_del = rocker_port_swdev_fib_ipv4_del,
+ .swdev_port_phy_state_set = rocker_port_swdev_port_phy_state_set,
};
/********************
--
1.7.10.4
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