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2019-03-03net: dsa: microchip: add KSZ9893 switch supportTristram Ha3-15/+235
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 <Tristram.Ha@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-24dsa: Remove phydev parameter from disable_port callAndrew Lunn2-2/+2
No current DSA driver makes use of the phydev parameter passed to the disable_port call. Remove it. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-24net: dsa: microchip: add port_cleanup functionTristram Ha4-0/+31
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 <Tristram.Ha@microchip.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-24net: dsa: microchip: remove unnecessary include headersTristram Ha1-4/+0
Remove unnecessary header include. Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-24net: dsa: microchip: get port link statusTristram Ha3-0/+17
Get port link status to know whether to read MIB counters when the link is going down. Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-24net: dsa: microchip: add MIB counter reading supportTristram Ha4-48/+205
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 <Tristram.Ha@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-24net: dsa: microchip: prepare PHY for proper advertisementTristram Ha3-3/+17
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 <Tristram.Ha@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-11net: dsa: microchip: add switch offload forwarding supportTristram Ha1-3/+4
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 <Tristram.Ha@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-04net: dsa: microchip: Drop unused GPIO includesLinus Walleij1-2/+0
This driver does not use the old GPIO includes so drop them. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-20net: dsa: microchip: fix unicast frame leakTristram Ha1-4/+4
Port partitioning is done by enabling UNICAST_VLAN_BOUNDARY and changing the default port membership of 0x7f to other values such that there is no communication between ports. In KSZ9477 the member for port 1 is 0x41; port 2, 0x42; port 3, 0x44; port 4, 0x48; port 5, 0x50; and port 7, 0x60. Port 6 is the host port. Setting a zero value can be used to stop port from receiving. However, when UNICAST_VLAN_BOUNDARY is disabled and the unicast addresses are already learned in the dynamic MAC table, setting zero still allows devices connected to those ports to communicate. This does not apply to multicast and broadcast addresses though. To prevent these leaks and make the function of port membership consistent UNICAST_VLAN_BOUNDARY should never be disabled. Note that UNICAST_VLAN_BOUNDARY is enabled by default in KSZ9477. Fixes: b987e98e50ab90e5 ("dsa: add DSA switch driver for Microchip KSZ9477") Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-16net: dsa: ksz: Rename NET_DSA_TAG_KSZ to _KSZ9477Tristram Ha2-2/+2
Rename the tag Kconfig option and related macros in preparation for addition of new KSZ family switches with different tag formats. Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com> Signed-off-by: Marek Vasut <marex@denx.de> Cc: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Cc: Woojung Huh <woojung.huh@microchip.com> Cc: David S. Miller <davem@davemloft.net> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-10net: dsa: ksz: Add reset GPIO handlingMarek Vasut2-0/+19
Add code to handle optional reset GPIO in the KSZ switch driver. The switch has a reset GPIO line which can be controlled by the CPU, so make sure it is configured correctly in such setups. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Cc: Woojung Huh <woojung.huh@microchip.com> Cc: David S. Miller <davem@davemloft.net> Cc: Tristram Ha <Tristram.Ha@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-20net: dsa: microchip: rename ksz_9477_reg.h to ksz9477_reg.hTristram Ha3-2/+2
Rename ksz_9477_reg.h to ksz9477_reg.h for consistency as the product name is always KSZ####. Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com> Reviewed-by: Woojung Huh <Woojung.Huh@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-20net: dsa: microchip: break KSZ9477 DSA driver into two filesTristram Ha8-1242/+1903
Break KSZ9477 DSA driver into two files in preparation to add more KSZ switch drivers. Add common functions in ksz_common.h so that other KSZ switch drivers can access code in ksz_common.c. Add ksz_spi.h for common functions used by KSZ switch SPI drivers. Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com> Reviewed-by: Woojung Huh <Woojung.Huh@microchip.com> Reviewed-by: Pavel Machek <pavel@ucw.cz> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-20net: dsa: microchip: rename ksz_spi.c to ksz9477_spi.cTristram Ha3-8/+8
Rename ksz_spi.c to ksz9477_spi.c and update Kconfig in preparation to add more KSZ switch drivers. Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com> Reviewed-by: Woojung Huh <Woojung.Huh@microchip.com> Reviewed-by: Pavel Machek <pavel@ucw.cz> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-20net: dsa: microchip: rename some functions with ksz9477 prefixTristram Ha1-57/+59
Rename some functions with ksz9477 prefix to separate chip specific code from common code. Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com> Reviewed-by: Woojung Huh <Woojung.Huh@microchip.com> Reviewed-by: Pavel Machek <pavel@ucw.cz> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-20net: dsa: microchip: clean up codeTristram Ha1-4/+4
Clean up code according to patch check suggestions. Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com> Reviewed-by: Woojung Huh <Woojung.Huh@microchip.com> Reviewed-by: Pavel Machek <pavel@ucw.cz> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-20net: dsa: microchip: replace license with GPLTristram Ha4-54/+10
Replace license with GPL. Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com> Reviewed-by: Woojung Huh <Woojung.Huh@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Pavel Machek <pavel@ucw.cz> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-02net: dsa: microchip: initialize mutex before useTristram Ha1-5/+5
Initialize mutex before use. Avoid kernel complaint when CONFIG_DEBUG_LOCK_ALLOC is enabled. Fixes: b987e98e50ab90e5 ("dsa: add DSA switch driver for Microchip KSZ9477") Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com> Reviewed-by: Pavel Machek <pavel@ucw.cz> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-08-16net: dsa: add support for ksz9897 ethernet switchLad, Prabhakar2-0/+10
ksz9477 is superset of ksz9xx series, driver just works out of the box for ksz9897 chip with this patch. Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27net: dsa: Pass stringset to ethtool operationsFlorian Fainelli1-2/+9
Up until now we largely assumed that we were interested in ETH_SS_STATS type of strings for all ethtool operations, this is about to change with the introduction of additional string sets, e.g: ETH_SS_PHY_STATS. Update all functions to take an appropriate stringset argument and act on it when it is different than ETH_SS_STATS for now. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-04dsa: Pass the port to get_sset_count()Andrew Lunn1-1/+1
By passing the port, we allow different ports to have different statistics. This is useful since some ports have SERDES interfaces with their own statistic counters. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-02net: dsa: remove trans argument from mdb opsVivien Didelot1-4/+2
The DSA switch MDB ops pass the switchdev_trans structure down to the drivers, but no one is using them and they aren't supposed to anyway. Remove the trans argument from MDB prepare and add operations. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-02net: dsa: remove trans argument from vlan opsVivien Didelot1-4/+2
The DSA switch VLAN ops pass the switchdev_trans structure down to the drivers, but no one is using them and they aren't supposed to anyway. Remove the trans argument from VLAN prepare and add operations. At the same time, fix the following checkpatch warning: WARNING: line over 80 characters #74: FILE: drivers/net/dsa/dsa_loop.c:177: + const struct switchdev_obj_port_vlan *vlan) Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-11-13net: dsa: Pass a port to get_tag_protocol()Florian Fainelli1-1/+2
A number of drivers want to check whether the configured CPU port is a possible configuration for enabling tagging, pass down the CPU port number so they verify that. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07net: dsa: Move FDB dump implementation inside DSAArkadi Sharshevsky1-14/+6
>From all switchdev devices only DSA requires special FDB dump. This is due to lack of ability for syncing the hardware learned FDBs with the bridge. Due to this it is removed from switchdev and moved inside DSA. Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07net: dsa: Remove support for MDB dump from DSA's driversArkadi Sharshevsky1-9/+0
This is done as a preparation before removing support for MDB dump from DSA core. The MDBs are synced with the bridge and thus there is no need for special dump operation support. Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07net: dsa: Remove support for vlan dump from DSA's driversArkadi Sharshevsky1-41/+0
This is done as a preparation before removing support for vlan dump from DSA core. The vlans are synced with the bridge and thus there is no need for special dump operation support. Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07net: dsa: Remove prepare phase for FDBArkadi Sharshevsky1-14/+10
The prepare phase for FDB add is unneeded because most of DSA devices can have failures during bus transactions (SPI, I2C, etc.), thus, the prepare phase cannot guarantee success of the commit stage. The support for learning FDB through notification chain, which will be introduced in the following patches, will provide the ability to notify back the bridge about successful offload. Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com> Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07net: dsa: Change DSA slave FDB API to be switchdev independentArkadi Sharshevsky1-18/+16
In order to support FDB add/del to be on a notifier chain the slave API need to be changed to be switchdev independent. Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com> Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-31dsa: add DSA switch driver for Microchip KSZ9477Woojung Huh6-0/+3395
The KSZ9477 is a fully integrated layer 2, managed, 7 ports GigE switch with numerous advanced features. 5 ports incorporate 10/100/1000 Mbps PHYs. The other 2 ports have interfaces that can be configured as SGMII, RGMII, MII or RMII. Either of these may connect directly to a host processor or to an external PHY. The SGMII port may interface to a fiber optic transceiver. This driver currently supports vlan, fdb, mdb & mirror dsa switch operations. Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Woojung Huh <Woojung.Huh@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
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