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* dsa: fix promiscuity leak on slave dev open errorGilad Ben-Yossef2015-06-281-1/+1
| | | | | | | | | | | | | | | | DSA master netdev promiscuity counter was not being properly decremented on slave device open error path. Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com> CC: Gilad Ben-Yossef <giladb@ezchip.com> CC: David S. Miller <davem@davemloft.net> CC: Florian Fainelli <f.fainelli@gmail.com> CC: Guenter Roeck <linux@roeck-us.net> CC: Andrew Lunn <andrew@lunn.ch> CC: Scott Feldman <sfeldma@gmail.com> Acked-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* switchdev: don't use anonymous union on switchdev attr/obj structsScott Feldman2015-05-131-3/+3
| | | | | | | | | | Older gcc versions (e.g. gcc version 4.4.6) don't like anonymous unions which was causing build issues on the newly added switchdev attr/obj structs. Fix this by using named union on structs. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Reported-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* switchdev: convert STP update to switchdev attr setScott Feldman2015-05-121-1/+19
| | | | | | | | | | | | | | | STP update is just a settable port attribute, so convert switchdev_port_stp_update to an attr set. For DSA, the prepare phase is skipped and STP updates are only done in the commit phase. This is because currently the DSA drivers don't need to allocate any memory for STP updates and the STP update will not fail to HW (unless something horrible goes wrong on the MDIO bus, in which case the prepare phase wouldn't have been able to predict anyway). Signed-off-by: Scott Feldman <sfeldma@gmail.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* switchdev: convert parent_id_get to switchdev attr getScott Feldman2015-05-121-5/+11
| | | | | | | | | | | | | | Switch ID is just a gettable port attribute. Convert switchdev op switchdev_parent_id_get to a switchdev attr. Note: for sysfs and netlink interfaces, SWITCHDEV_ATTR_PORT_PARENT_ID is called with SWITCHDEV_F_NO_RECUSE to limit switch ID user-visiblity to only port netdevs. So when a port is stacked under bond/bridge, the user can only query switch id via the switch ports, but not via the upper devices Signed-off-by: Scott Feldman <sfeldma@gmail.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
* switchdev: s/swdev_/switchdev_/Jiri Pirko2015-05-121-4/+4
| | | | | | | | | | | Turned out that "switchdev" sticks. So just unify all related terms to use this prefix. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Scott Feldman <sfeldma@gmail.com> Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com> Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: Add lockdep class to tx queues to avoid lockdep splatAndrew Lunn2015-05-091-2/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | DSA stacks an Ethernet device on top of an Ethernet device. This can cause false positive lockdep splats for the transmit queue: Acked-by: Florian Fainelli <f.fainelli@gmail.com> ============================================= [ INFO: possible recursive locking detected ] 4.0.0-rc7-01838-g70621a215fc7 #386 Not tainted --------------------------------------------- kworker/0:0/4 is trying to acquire lock: (_xmit_ETHER#2){+.-...}, at: [<c040e95c>] sch_direct_xmit+0xa8/0x1fc but task is already holding lock: (_xmit_ETHER#2){+.-...}, at: [<c03f4208>] __dev_queue_xmit+0x4d4/0x56c other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(_xmit_ETHER#2); lock(_xmit_ETHER#2); To avoid this, walk the tq queues of the dsa slaves and set a lockdep class. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* dsa: implement ndo_get_iflinkNicolas Dichtel2015-04-021-5/+3
| | | | | | | | Don't use dev->iflink anymore. CC: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: Add basic framework to support ndo_fdb functionsGuenter Roeck2015-03-291-0/+102
| | | | | | | | | Provide callbacks for ndo_fdb_add, ndo_fdb_del, and ndo_fdb_dump. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: Handle non-bridge master changeGuenter Roeck2015-03-251-1/+2
| | | | | | | | | | | Master change notifications may occur other than when joining or leaving a bridge, for example when being added to or removed from a bond or Open vSwitch. In that case, do nothing instead of asking the switch driver to remove a port from a bridge that it didn't join. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* switchdev: use new swdev opsScott Feldman2015-03-161-2/+7
| | | | | | | | | | | | | | | | Move swdev wrappers over to new swdev ops (from previous ndo ops). No functional changes to the implementation. Signed-off-by: Scott Feldman <sfeldma@gmail.com> rocker: move to new swdev ops Signed-off-by: Scott Feldman <sfeldma@gmail.com> dsa: move to new swdev ops Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: do not use slave MII bus for fixed PHYsFlorian Fainelli2015-03-141-1/+2
| | | | | | | | | | | | | | | | Commit cd28a1a9baee7 ("net: dsa: fully divert PHY reads/writes if requested") introduced a check for particular PHYs that need to be accessed using the slave MII bus created by DSA, but this check was too inclusive. This would prevent fixed PHYs from being successfully registered because those should not go through the slave MII bus created by DSA. Make sure we check that the PHY is not a fixed PHY to prevent that from happening. Fixes: cd28a1a9baee7 ("net: dsa: fully divert PHY reads/writes if requested") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: fully divert PHY reads/writes if requestedFlorian Fainelli2015-03-111-7/+22
| | | | | | | | | | | | | | | | In case a PHY is found via Device Tree, and is also flagged by the switch driver as needing indirect reads/writes using the switch driver implemented MDIO bus, make sure that we bind this PHY to the slave MII bus in order for this to happen. Without this, we would succeed in having the PHY driver probe()'s function to use slave MII bus read/write functions, because this is done during dsa_slave_mii_init(), but past that point, the PHY driver would not go through these diverted reads and writes. Fixes: 0d8bcdd383b88 ("net: dsa: allow for more complex PHY setups") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: move PHY setup on DSA MII bus to its own functionFlorian Fainelli2015-03-111-8/+20
| | | | | | | | | | In preparation for dealing with indirect reads and writes towards certain PHY devices, move the code which deals with binding the PHY device to the slave MII bus created by DSA to its own function: dsa_slave_phy_connect(). Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: Introduce dsa_is_port_initializedGuenter Roeck2015-02-251-4/+1
| | | | | | | | | | To avoid race conditions when using the ds->ports[] array, we need to check if the accessed port has been initialized. Introduce and use helper function dsa_is_port_initialized for that purpose and use it where needed. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: integrate with SWITCHDEV for HW bridgingFlorian Fainelli2015-02-251-0/+149
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to support bridging offloads in DSA switch drivers, select NET_SWITCHDEV to get access to the port_stp_update and parent_get_id NDOs that we are required to implement. To facilitate the integratation at the DSA driver level, we implement 3 types of operations: - port_join_bridge - port_leave_bridge - port_stp_update DSA will resolve which switch ports that are currently bridge port members as some Switch hardware/drivers need to know about that to limit the register programming to just the relevant registers (especially for slow MDIO buses). We also take care of setting the correct STP state when slave network devices are brought up/down while being bridge members. Finally, when a port is leaving the bridge, we make sure we set in BR_STATE_FORWARDING state, otherwise the bridge layer would leave it disabled as a result of having left the bridge. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: Ensure that port array elements are initialized before being usedGuenter Roeck2015-02-251-7/+8
| | | | | | | | | | | | | | | A network device notifier can be called for one or more of the created slave devices before all slave devices have been registered. This can result in a mismatch between ds->phys_port_mask and the registered devices by the time the call is made, and it can result in a slave device being added to a bridge before its entry in ds->ports[] has been initialized. Rework the initialization code to initialize entries in ds->ports[] in dsa_slave_create. With this change, dsa_slave_create no longer needs to return slave_dev but can return an error code instead. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: Set valid phy interface typeGuenter Roeck2015-02-171-2/+7
| | | | | | | | | | | | | | | | | | | If the phy interface mode is not found in devicetree, or if devicetree is not configured, of_get_phy_mode returns -ENODEV. The current code sets the phy interface mode to the return value from of_get_phy_mode without checking if it is valid. This invalid phy interface mode is passed as parameter to of_phy_connect or to phy_connect_direct. This sets the phy interface mode to the invalid value, which in turn causes problems for any code using phydev->interface. Fixes: b31f65fb4383 ("net: dsa: slave: Fix autoneg for phys on switch MDIO bus") Fixes: 0d8bcdd383b8 ("net: dsa: allow for more complex PHY setups") Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: Remove redundant phy_attach()Andrew Lunn2015-02-091-13/+0
| | | | | | | | | | | | | | | | | dsa_slave_phy_setup() finds the phy for the port via device tree and using of_phy_connect(), or it uses the fall back of taking a phy from the switch internal mdio bus and calling phy_connect_direct(). Either way, if a phy is found, phy_attach_direct() is called to attach the phy to the slave device. In dsa_slave_create(), a second call to phy_attach() is made. This results in the warning "PHY already attached". Remove this second, redundant attaching of the phy. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: set slave MII bus PHY maskVivien Didelot2015-01-251-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | When registering a mdio bus, Linux assumes than every port has a PHY and tries to scan it. If a switch port has no PHY registered, DSA will fail to register the slave MII bus. To fix this, set the slave MII bus PHY mask to the switch PHYs mask. As an example, if we use a Marvell MV88E6352 (which is a 7-port switch with no registered PHYs for port 5 and port 6), with the following declared names: static struct dsa_chip_data switch_cdata = { [...] .port_names[0] = "sw0", .port_names[1] = "sw1", .port_names[2] = "sw2", .port_names[3] = "sw3", .port_names[4] = "sw4", .port_names[5] = "cpu", }; DSA will fail to create the switch instance. With the PHY mask set for the slave MII bus, only the PHY for ports 0-4 will be scanned and the instance will be successfully created. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: propagate error code from dsa_slave_phy_setupFlorian Fainelli2014-12-111-4/+11
| | | | | | | | | | In case we cannot attach to our slave netdevice PHY, error out and propagate that error up to the caller: dsa_slave_create(). Fixes: 0d8bcdd383b8 ("net: dsa: allow for more complex PHY setups") Signed-off-by: Andrey Volkov <andrey.volkov@nexvision.fr> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: handle non-existing PHYs on switch internal busFlorian Fainelli2014-12-111-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | In case there is no PHY at the designated address on the internal switch, we would basically de-reference a null pointer here: dsa_slave_phy_setup(...) { p->phy = ds->slave_mii_bus->phy_map[p->port]; phy_connect_direct(slave_dev, p->phy, dsa_slave_adjust_link, ^------ This can be triggered when the platform configuration (platform_data or Device Tree) indicates there should be a PHY device at this address, but the HW is non-responsive, such that we cannot attach a PHY device at this specific location. Fix this by checking the return value prior to calling phy_connect_direct(). CC: Andrew Lunn <andrew@lunn.ch> Fixes: b31f65fb4383 ("net: dsa: slave: Fix autoneg for phys on switch MDIO bus") Reported-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Andrey Volkov <andrey.volkov@nexvision.fr> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* dsa: Use netdev_<level> instead of printkJoe Perches2014-11-111-5/+5
| | | | | | | | | | | | Neaten and standardize the logging output. Other miscellanea: o Use pr_notice_once instead of a guard flag. o Convert existing pr_<level> uses too. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2014-11-061-2/+5
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| * net: dsa: slave: Fix autoneg for phys on switch MDIO busAndrew Lunn2014-11-061-2/+5
| | | | | | | | | | | | | | | | | | When the ports phys are connected to the switches internal MDIO bus, we need to connect the phy to the slave netdev, otherwise auto-negotiation etc, does not work. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: Add support for reading switch registers with ethtoolGuenter Roeck2014-10-301-0/+23
| | | | | | | | | | | | | | Add support for reading switch registers with 'ethtool -d'. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: Add support for switch EEPROM accessGuenter Roeck2014-10-301-0/+41
|/ | | | | | | | On some chips it is possible to access the switch eeprom. Add infrastructure support for it. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* Net: DSA: Fix checking for get_phy_flags functionAndrew Lunn2014-10-191-1/+1
| | | | | | | | | | | | The check for the presence or not of the optional switch function get_phy_flags() called the function, rather than checked to see if it is a NULL pointer. This causes a derefernce of a NULL pointer on all switch chips except the sf2, the only switch to implement this call. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Fixes: 6819563e646a ("net: dsa: allow switch drivers to specify phy_device::dev_flags") Cc: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: add includes for ethtool and phy_fixed definitionsFlorian Fainelli2014-10-171-0/+1
| | | | | | | | | | | | net/dsa/slave.c uses functions and structures declared in phy_fixed.h but does not explicitely include it, while dsa.h needs structure declarations for 'struct ethtool_wolinfo' and 'struct ethtool_eee', fix those by including the correct header files. Fixes: ec9436baedb6 ("net: dsa: allow drivers to do link adjustment") Fixes: ce31b31c68e7 ("net: dsa: allow updating fixed PHY link information") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: do not call phy_start_anegFlorian Fainelli2014-10-041-1/+0
| | | | | | | | | | | | | | | | Commit f7f1de51edbd ("net: dsa: start and stop the PHY state machine") add calls to phy_start() in dsa_slave_open() respectively phy_stop() in dsa_slave_close(). We also call phy_start_aneg() in dsa_slave_create(), and this call is messing up with the PHY state machine, since we basically start the auto-negotiation, and later on restart it when calling phy_start(). phy_start() does not currently handle the PHY_FORCING or PHY_AN states properly, but such a fix would be too invasive for this window. Fixes: f7f1de51edbd ("net: dsa: start and stop the PHY state machine") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: allow switches driver to implement get/set EEEFlorian Fainelli2014-09-281-0/+40
| | | | | | | | | | | | | Allow switches driver to query and enable/disable EEE on a per-port basis by implementing the ethtool_{get,set}_eee settings and delegating these operations to the switch driver. set_eee() will need to coordinate with the PHY driver to make sure that EEE is enabled, the link-partner supports it and the auto-negotiation result is satisfactory. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: allow enabling and disable switch portsFlorian Fainelli2014-09-281-0/+14
| | | | | | | | | | | | Whenever a per-port network device is used/unused, invoke the switch driver port_enable/port_disable callbacks to allow saving as much power as possible by disabling unused parts of the switch (RX/TX logic, memory arrays, PHYs...). We supply a PHY device argument to make sure the switch driver can act on the PHY device if needed (like putting/taking the PHY out of deep low power mode). Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: start and stop the PHY state machineFlorian Fainelli2014-09-281-0/+6
| | | | | | | | | dsa_slave_open() should start the PHY library state machine for its PHY interface, and dsa_slave_close() should stop the PHY library state machine accordingly. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: add {get, set}_wol callbacks to slave devicesFlorian Fainelli2014-09-221-0/+23
| | | | | | | | Allow switch drivers to implement per-port Wake-on-LAN getter and setters. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: allow switch drivers to implement suspend/resume hooksFlorian Fainelli2014-09-221-0/+31
| | | | | | | | | | | | Add an abstraction layer to suspend/resume switch devices, doing the following split: - suspend/resume the slave network devices and their corresponding PHY devices - suspend/resume the switch hardware using switch driver callbacks Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: allow switch drivers to specify phy_device::dev_flagsFlorian Fainelli2014-09-191-1/+8
| | | | | | | | | | Some switch drivers (e.g: bcm_sf2) may have to communicate specific workarounds or flags towards the PHY device driver. Allow switches driver to be delegated that task by introducing a get_phy_flags() callback which will do just that. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* dsa: Replace mii_bus with a generic host deviceAlexander Duyck2014-09-151-1/+1
| | | | | | | | | | | | | This change makes it so that instead of passing and storing a mii_bus we instead pass and store a host_dev. From there we can test to determine the exact type of device, and can verify it is the correct device for our switch. So for example it would be possible to pass a device pointer from a pci_dev and instead of checking for a PHY ID we could check for a vendor and/or device ID. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* dsa: Split ops up, and avoid assigning tag_protocol and receive separatelyAlexander Duyck2014-09-151-22/+15
| | | | | | | | | | | | | | | | | | | | | | | | This change addresses several issues. First, it was possible to set tag_protocol without setting the ops pointer. To correct that I have reordered things so that rcv is now populated before we set tag_protocol. Second, it didn't make much sense to keep setting the device ops each time a new slave was registered. So by moving the receive portion out into root switch initialization that issue should be addressed. Third, I wanted to avoid sending tags if the rcv pointer was not registered so I changed the tag check to verify if the rcv function pointer is set on the root tree. If it is then we start sending DSA tagged frames. Finally I split the device ops pointer in the structures into two spots. I placed the rcv function pointer in the root switch since this makes it easiest to access from there, and I placed the xmit function pointer in the slave for the same reason. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: change tag_protocol to an enumFlorian Fainelli2014-09-131-4/+4
| | | | | | | | | | | | | | | | Now that we introduced an additional multiplexing/demultiplexing layer with commit 3e8a72d1dae37 ("net: dsa: reduce number of protocol hooks") that lives within the DSA code, we no longer need to have a given switch driver tag_protocol be an actual ethertype value, instead, we can replace it with an enum: dsa_tag_protocol. Do this replacement in the drivers, which allows us to get rid of the cpu_to_be16()/htons() dance, and remove ETH_P_BRCMTAG since we do not need it anymore. Suggested-by: Alexander Duyck <alexander.duyck@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: add Broadcom tag RX/TX handlerFlorian Fainelli2014-08-271-0/+5
| | | | | | | | | | | Add support for the 4-bytes Broadcom tag that built-in switches such as the Starfighter 2 might insert when receiving packets, or that we need to insert while targetting specific switch ports. We use a fake local EtherType value for this 4-bytes switch tag: ETH_P_BRCMTAG to make sure we can assign DSA-specific network operations within the DSA drivers. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: allow updating fixed PHY link informationFlorian Fainelli2014-08-271-0/+17
| | | | | | | | Allow switch drivers to hook a PHY link update callback to perform port-specific link work. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: allow drivers to do link adjustmentFlorian Fainelli2014-08-271-0/+4
| | | | | | | | | | Whenever libphy determines that the link status of a given PHY/port has changed, allow to call into the switch driver link adjustment callback so proper actions can be taken care of by the switch driver upon link notification. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: allow switches to work without taggingFlorian Fainelli2014-08-271-1/+18
| | | | | | | | | | | | | | In case switch port tagging is disabled (voluntarily, or the switch just does not support it), allow us to continue using the defined set of dsa_device_ops in net/dsa/slave.c. We introduce dsa_protocol_is_tagged() to check whether we need to override skb->protocol and go through the DSA-specifif packet_type function, or if we just go on and receive the SKB through the normal path. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: allow for more complex PHY setupsFlorian Fainelli2014-08-271-3/+73
| | | | | | | | | | | | | | | | | | | Modify the DSA slave interface to be bound to an arbitray PHY, not just the ones that are available as child PHY devices of the switch MDIO bus. This allows us for instance to have external PHYs connected to a separate MDIO bus, but yet also connected to a given switch port. Under certain configurations, the physical port mask might not be a 1:1 mapping to the MII PHYs mask. This is the case, if e.g: Port 1 of the switch is used and connects to a PHY at a MDIO address different than 1. Introduce a phys_mii_mask variable which allows driver to implement and divert their own MDIO read/writes operations for a subset of the MDIO PHY addresses. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: retain a per-port device_node pointerFlorian Fainelli2014-08-271-0/+1
| | | | | | | | We will later use the per-port device_node pointer to fetch a bunch of port-specific properties. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: reduce number of protocol hooksFlorian Fainelli2014-08-271-31/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | DSA is currently registering one packet_type function per EtherType it needs to intercept in the receive path of a DSA-enabled Ethernet device. Right now we have three of them: trailer, DSA and eDSA, and there might be more in the future, this will not scale to the addition of new protocols. This patch proceeds with adding a new layer of abstraction and two new functions: dsa_switch_rcv() which will dispatch into the tag-protocol specific receive function implemented by net/dsa/tag_*.c dsa_slave_xmit() which will dispatch into the tag-protocol specific transmit function implemented by net/dsa/tag_*.c When we do create the per-port slave network devices, we iterate over the switch protocol to assign the DSA-specific receive and transmit operations. A new fake ethertype value is used: ETH_P_XDSA to illustrate the fact that this is no longer going to look like ETH_P_DSA or ETH_P_TRAILER like it used to be. This allows us to greatly simplify the check in eth_type_trans() and always override the skb->protocol with ETH_P_XDSA for Ethernet switches tagged protocol, while also reducing the number repetitive slave netdevice_ops assignments. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: set name_assign_type in alloc_netdev()Tom Gundersen2014-07-151-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Extend alloc_netdev{,_mq{,s}}() to take name_assign_type as argument, and convert all users to pass NET_NAME_UNKNOWN. Coccinelle patch: @@ expression sizeof_priv, name, setup, txqs, rxqs, count; @@ ( -alloc_netdev_mqs(sizeof_priv, name, setup, txqs, rxqs) +alloc_netdev_mqs(sizeof_priv, name, NET_NAME_UNKNOWN, setup, txqs, rxqs) | -alloc_netdev_mq(sizeof_priv, name, setup, count) +alloc_netdev_mq(sizeof_priv, name, NET_NAME_UNKNOWN, setup, count) | -alloc_netdev(sizeof_priv, name, setup) +alloc_netdev(sizeof_priv, name, NET_NAME_UNKNOWN, setup) ) v9: move comments here from the wrong commit Signed-off-by: Tom Gundersen <teg@jklm.no> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: get rid of SET_ETHTOOL_OPSWilfried Klaebe2014-05-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | net: get rid of SET_ETHTOOL_OPS Dave Miller mentioned he'd like to see SET_ETHTOOL_OPS gone. This does that. Mostly done via coccinelle script: @@ struct ethtool_ops *ops; struct net_device *dev; @@ - SET_ETHTOOL_OPS(dev, ops); + dev->ethtool_ops = ops; Compile tested only, but I'd seriously wonder if this broke anything. Suggested-by: Dave Miller <davem@davemloft.net> Signed-off-by: Wilfried Klaebe <w-lkml@lebenslange-mailadresse.de> Acked-by: Felipe Balbi <balbi@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* dsa: Use ether_addr_copyJoe Perches2014-01-211-1/+1
| | | | | | | | Use ether_addr_copy instead of memcpy(a, b, ETH_ALEN) to save some cycles on arm and powerpc. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: inherit addr_assign_type along with dev_addrBjørn Mork2013-09-031-1/+1
| | | | | | | | A device inheriting a random or set address should reflect this in its addr_assign_type. Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
* dsa: use an unique and non conflicting bus name for the slave MII busFlorian Fainelli2013-01-211-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | The slave MII bus registered by the DSA code is using the parent MII bus as part of its name (ds->master_mii_bus_id), in case the parent MII bus name is already 16 characters long (such as d0072004.mdio-mi) we will get the following WARN_ON in dsa_switch_setup() when calling mdiobus_register(): [ 79.088782] ------------[ cut here ]------------ [ 79.093448] WARNING: at fs/sysfs/dir.c:536 sysfs_add_one+0x80/0xa0() [ 79.099831] sysfs: cannot create duplicate filename '/class/mdio_bus/d0072004.mdio-mi' This is a genuine warning, because the DSA slave MII bus will also be named d0072004.mdio-mi, and since MII_BUS_ID_SIZE is 17 characters long (with null-terminator) the following will truncate the slave MII bus id: snprintf(ds->slave_mii_bus->id, MII_BUS_ID_SIZE, "%s-%d:%.2x", ds->master_mii_bus->id, ds->pd->sw_addr); Fix this by using dsa-<switch index->:<sw_add> which is guaranteed to be unique. Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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