kernel/drivers/net/dsa/microchip, branch linux-5.1.y

net: dsa: microchip: Don't try to read stats for unused ports

2019-06-22T06:09:06Z

[ Upstream commit 6bb9e376c2a4cc5120c3bf5fd3048b9a0a6ec1f8 ] If some of the switch ports were not listed in the device tree, due to being unused, the ksz_mib_read_work function ended up accessing a NULL dp->slave pointer and causing an oops. Skip checking statistics for any unused ports. Fixes: 7c6ff470aa867f53 ("net: dsa: microchip: add MIB counter reading support") Signed-off-by: Robert Hancock Reviewed-by: Vivien Didelot Reviewed-by: Andrew Lunn Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman

net: dsa: microchip: add KSZ9893 switch support

2019-03-03T21:48:49Z

Add KSZ9893 switch support in KSZ9477 driver. This switch is similar to KSZ9477 except the ingress tail tag has 1 byte instead of 2 bytes, so KSZ9893 tagging will be used. The XMII register that governs how the host port communicates with the MAC also has different register definitions. Signed-off-by: Tristram Ha Signed-off-by: David S. Miller

dsa: Remove phydev parameter from disable_port call

2019-02-25T06:30:34Z

No current DSA driver makes use of the phydev parameter passed to the disable_port call. Remove it. Signed-off-by: Andrew Lunn Signed-off-by: David S. Miller

net: dsa: microchip: add port_cleanup function

2019-02-25T01:49:59Z

Add port_cleanup function to reset some device variables when the port is disabled. Add a mutex to make sure changing those variables is thread-safe. Signed-off-by: Tristram Ha Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller

net: dsa: microchip: remove unnecessary include headers

2019-02-25T01:49:59Z

Remove unnecessary header include. Signed-off-by: Tristram Ha Reviewed-by: Andrew Lunn Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller

net: dsa: microchip: get port link status

2019-02-25T01:49:59Z

Get port link status to know whether to read MIB counters when the link is going down. Signed-off-by: Tristram Ha Reviewed-by: Andrew Lunn Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller

net: dsa: microchip: add MIB counter reading support

2019-02-25T01:49:59Z

Add background MIB counter reading support. Port MIB counters should only be read when there is link. Otherwise it is a waste of time as hardware never increases those counters. There are exceptions as some switches keep track of dropped counts no matter what. Signed-off-by: Tristram Ha Reviewed-by: Andrew Lunn Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller

net: dsa: microchip: prepare PHY for proper advertisement

2019-02-25T01:49:59Z

Prepare PHY for proper advertisement as sometimes the PHY in the switch has its own problems even though it may share the PHY id from regular PHY but the fixes in the PHY driver do not apply. Signed-off-by: Tristram Ha Reviewed-by: Andrew Lunn Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller

net: dsa: microchip: add switch offload forwarding support

2019-02-11T20:46:51Z

The flag offload_fwd_mark is set as the switch can forward frames by itself. This can be considered a fix to a problem introduced in commit c2e866911e254067 where the port membership are not set in sync. The flag offload_fwd_mark just needs to be set in tag_ksz.c to prevent the software bridge from forwarding duplicate multicast frames. Fixes: c2e866911e254067 ("microchip: break KSZ9477 DSA driver into two files") Signed-off-by: Tristram Ha Signed-off-by: David S. Miller

net: dsa: microchip: Drop unused GPIO includes

2019-01-04T20:58:25Z

This driver does not use the old GPIO includes so drop them. Signed-off-by: Linus Walleij Reviewed-by: Vivien Didelot Signed-off-by: David S. Miller