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* net: dsa: bcm_sf2: always select FIXED_PHYFlorian Fainelli2014-12-161-1/+1
| | | | | | | | | | | | | There is no need to do the following: select FIXED_PHY if NET_DSA_BCM_SF2=y, as this implies that we will not be able to build and/or run the driver correctly when built as a module, which is no longer an issue since commit 37e9a6904520 ("net: phy: export fixed_phy_register()"). Fixes: 246d7f773c13ca ("net: dsa: add Broadcom SF2 switch driver") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: bcm_sf2: force link for all fixed PHY devicesFlorian Fainelli2014-12-121-10/+13
| | | | | | | | | | | | | | | For ports of the switch that we define as "fixed PHYs" such as MoCA, we would have our Port 7 special handling that would allow us to assert the link status indication. For other ports, such as e.g: RGMII_1 connected to a cable modem, we would rely on whatever the bootloader has left configured, which is a bad assumption to make, we really need to force the link status indication here. Fixes: 246d7f773c13 ("net: dsa: add Broadcom SF2 switch driver") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2014-11-301-25/+33
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| * net: dsa: bcm_sf2: reset switch prior to initializationFlorian Fainelli2014-11-261-23/+29
| | | | | | | | | | | | | | | | | | | | | | Our boot agent may have left the switch in an certain configuration state, make sure we issue a software reset prior to configuring the switch in order to ensure the HW is in a consistent state, in particular transmit queues and internal buffers. Fixes: 246d7f773c13 ("net: dsa: add Broadcom SF2 switch driver") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: dsa: bcm_sf2: fix unmapping registers in case of errorsFlorian Fainelli2014-11-261-2/+4
| | | | | | | | | | | | | | | | | | In case we fail to ioremap() one of our registers, we would be leaking existing mappings, unwind those accordingly on errors. Fixes: 246d7f773c13 ("net: dsa: add Broadcom SF2 switch driver") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6171: Add support for reading switch registersAndrew Lunn2014-11-161-0/+2
| | | | | | | | | | | | | | | | The infrastructure can now report switch registers to ethtool. Add support for it to the mv88e6171 driver. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6171: Add support for reading the temperatureAndrew Lunn2014-11-161-2/+17
| | | | | | | | | | | | | | | | | | This chip also has a temperature sensor which can be read using the common code. In order to use it, add the needed mutex protection for accessing registers via the shared code. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: Centralise code for reading the temperature sensorAndrew Lunn2014-11-163-49/+50
| | | | | | | | | | | | | | | | | | The method to read the temperature used in the mve6123_61_65 driver can also be used for other chips. Move the code into the shared code base of mv88e6xxx.c. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* | dsa: mv88e6171: Add support for mv88e6172Andrew Lunn2014-11-062-4/+7
| | | | | | | | | | | | | | | | The mv88e6172 is very similar to the mv88e6171. So extend the mv88e6171 driver to support it. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2014-11-011-1/+1
|\| | | | | | | | | | | | | | | | | Conflicts: drivers/net/phy/marvell.c Simple overlapping changes in drivers/net/phy/marvell.c Signed-off-by: David S. Miller <davem@davemloft.net>
| * dsa: mv88e6171: Fix tagging protocol/KconfigAndrew Lunn2014-10-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The mv88e6171 can support two different tagging protocols, DSA and EDSA. The switch driver structure only allows one protocol to be enumerated, and DSA was chosen. However the Kconfig entry ensures the EDSA tagging code is built. With a minimal configuration, we then end up with a mismatch. The probe is successful, EDSA tagging is used, but the switch is configured for DSA, resulting in mangled packets. Change the switch driver structure to enumerate EDSA, fixing the mismatch. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Fixes: 42f272539487 ("net: DSA: Marvell mv88e6171 switch driver") Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: Provide additional RMON statisticsGuenter Roeck2014-10-303-5/+27
| | | | | | | | | | | | | | | | | | | | | | | | Display sw_in_discards, sw_in_filtered, and sw_out_filtered for chips supported by mv88e6123_61_65 and mv88e6352 drivers. The variables are provided in port registers, not the normal status registers. Mark by adding 0x100 to the register offset and add special handling code to mv88e6xxx_get_ethtool_stats. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa/mv88e6352: Add support for reading switch registersGuenter Roeck2014-10-301-0/+2
| | | | | | | | | | | | | | Report switch register values to ethtool. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa/mv88e6123_61_65: Add support for reading switch registersGuenter Roeck2014-10-303-0/+29
| | | | | | | | | | | | | | | | The infrastructure can now report switch registers to ethtool. Add support for it to the mv88e6123_61_65 driver. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa/mv88e6352: Implement EEPROM access functionsGuenter Roeck2014-10-302-3/+224
| | | | | | | | | | | | | | | | | | | | | | | | | | MV88E6352 supports read and write access to its configuration eeprom. There is no means to detect if an EEPROM is connected to the switch. Also, the switch supports EEPROMs with different sizes, but can not detect or report the type or size of connected EEPROMs. Therefore, do not implement the get_eeprom_len callback but depend on platform or devicetree data to provide information about EEPROM presence and size. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa/mv88e6123_61_65: Report chip temperatureGuenter Roeck2014-10-301-2/+66
| | | | | | | | | | | | | | | | MV88E6123 and compatible chips support reading the chip temperature from PHY register 6:26. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa/mv88e6352: Report chip temperatureGuenter Roeck2014-10-301-0/+101
| | | | | | | | | | | | | | | | | | MV88E6352 supports reading the chip temperature from two PHY registers, 6:26 and 6:27. Report it using the more accurate register 6:27. Also report temperature limit and alarm. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa/mv88e6352: Add support for MV88E6176Guenter Roeck2014-10-302-2/+5
| | | | | | | | | | | | | | | | MV88E6176 is mostly compatible to MV88E6352 and is documented in the same functional specification. Add support for it. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: Add support for Marvell 88E6352Guenter Roeck2014-10-305-0/+485
| | | | | | | | | | | | | | | | | | Marvell 88E6352 is mostly compatible to MV88E6123/61/65, but requires indirect phy access. Also, its configuration registers are a bit different. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: Report known silicon revisions for Marvell 88E6131Guenter Roeck2014-10-301-4/+8
| | | | | | | | | | | | | | Report known silicon revisions when probing Marvell 88E6131 switches. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: Report known silicon revisions for Marvell 88E6060Guenter Roeck2014-10-301-1/+4
|/ | | | | | | Report known silicon revisions when probing Marvell 88E6060 switches. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* dsa: Fix conversion from host device to mii busGuenter Roeck2014-10-182-8/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit b4d2394d01bc ("dsa: Replace mii_bus with a generic host device") replaces mii_bus with a generic host_dev, and introduces dsa_host_dev_to_mii_bus() to support conversion from host_dev to mii_bus. However, in some cases it uses to_mii_bus to perform that conversion. Since host_dev is not the phy bus device but typically a platform device, this fails and results in a crash with the affected drivers. BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffff81781d35>] __mutex_lock_slowpath+0x75/0x100 PGD 406783067 PUD 406784067 PMD 0 Oops: 0002 [#1] SMP ... Call Trace: [<ffffffff810a538b>] ? pick_next_task_fair+0x61b/0x880 [<ffffffff81781de3>] mutex_lock+0x23/0x37 [<ffffffff81533244>] mdiobus_read+0x34/0x60 [<ffffffff8153b95a>] __mv88e6xxx_reg_read+0x8a/0xa0 [<ffffffff8153b9bc>] mv88e6xxx_reg_read+0x4c/0xa0 Fixes: b4d2394d01bc ("dsa: Replace mii_bus with a generic host device") Cc: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Alexander Duyck <alexander.h.duyck@redhat.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* dsa: mv88e6171: Fix tag_protocol checkGuenter Roeck2014-10-141-1/+1
| | | | | | | | | | tag_protocol is now an enum, so drivers have to check against it. Cc: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* drivers/net/dsa/Kconfig: Let NET_DSA_BCM_SF2 depend on HAS_IOMEMChen Gang2014-10-041-0/+1
| | | | | | | | | | | | | | | NET_DSA_BCM_SF2 need HAS_IOMEM, so depend on it, the related error (with allmodconfig under um): CC [M] drivers/net/dsa/bcm_sf2.o drivers/net/dsa/bcm_sf2.c: In function ‘bcm_sf2_sw_setup’: drivers/net/dsa/bcm_sf2.c:487:3: error: implicit declaration of function ‘iounmap’ [-Werror=implicit-function-declaration] iounmap(*base); ^ Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: bcm_sf2: add support for controlling EEEFlorian Fainelli2014-09-283-0/+79
| | | | | | | | | | | | | When EEE is enabled, negotiate this feature with the PHY and make sure that the capability checking, local EEE advertisement, link partner EEE advertisement and auto-negotiation resolution returned by phy_init_eee() is positive, and enable EEE at the switch level. While querying the current EEE settings, verify the low-power indication and indicate its status. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: bcm_sf2: add port_enable/disable callbacksFlorian Fainelli2014-09-281-20/+40
| | | | | | | | | | | | | | | The SF2 switch driver is already architected around per-port enable/disable callbacks, so we just need a slight update to our existing bcm_sf2_port_setup() resp. bcm_sf2_port_disable() functions to be suitable as callbacks for port_enable/port_disable. We need to shuffle a little the code that does the per-port VLAN configuration/isolation since ports can now be brought up/down separately, so we need to make sure that IMP (CPU, management) port is always included in that specific port setup. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: bcm_sf2: disable RGMII interface(s) when link is downFlorian Fainelli2014-09-281-0/+9
| | | | | | | | | When the link is down, disable the RGMII interface to conserve as much power as possible. We re-enable the RGMII interface whenever the link is detected. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: bcm_sf2: add support for Wake-on-LANFlorian Fainelli2014-09-222-0/+61
| | | | | | | | | | | | | | | In order for Wake-on-LAN to work properly, we query the parent network device Wake-on-LAN features and advertise those. Similarly, when configuring Wake-on-LAN on a per-port network interface, we make sure that we do not accept something the master network devices does not support. Finally, we need to maintain a bitmask of the ports enabled for Wake-on-LAN to prevent the suspend() callback from disabling a port that is used for waking up the system. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: bcm_sf2: add suspend/resume callbacksFlorian Fainelli2014-09-221-0/+85
| | | | | | | | | | | Implement the suspend/resume callbacks for the Broadcom Starfighter 2 switch driver. Suspending the switch requires masking interrupts and shutting down ports. Resuming the switch requires a software reset since we do not know which power-sate we might be coming from, and re-enabling the physical ports that are used. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: bcm_sf2: communicate integrated PHY revision to PHY driverFlorian Fainelli2014-09-193-0/+18
| | | | | | | | | | | | | The integrated BCM7xxx PHY contains no useful revision information in its MII_PHYSID2 bits 3:0, that information is instead contained in the SWITCH_REG_PHY_REVISION register. Read this register, store its value, and return it by implementing the dsa_switch::get_phy_flags() callback accordingly. The register layout is already matching what the BCM7xxx PHY driver is expecting to find. 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 Duyck2014-09-156-10/+27
| | | | | | | | | | | | | 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>
* net: DSA: Marvell mv88e6171 switch driverAndrew Lunn2014-09-135-0/+426
| | | | | | | | | | This is the Marvell driver with some cleanups by Claudio Leite and myself. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Cc: Claudio Leite <leitec@staticky.com> Signed-off-by: Claudio Leite <leitec@staticky.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: change tag_protocol to an enumFlorian Fainelli2014-09-134-5/+5
| | | | | | | | | | | | | | | | 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 SF2 switch driverFlorian Fainelli2014-08-285-0/+1005
| | | | | | | | | | | | | | | | | | Add support for the Broadcom Starfigther 2 switch chip using a DSA driver. This switch driver supports the following features: - configuration of the external switch port interface: MII, RevMII, RGMII and RGMII_NO_ID are supported - support for the per-port MIB counters - support for link interrupts for special ports (e.g: MoCA) - powering up/down of switch memories to conserve power when ports are unused Finally, update the compatible property for the DSA core code to match our switch top-level compatible node. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: update DSA drivers to use ds_to_privFlorian Fainelli2014-04-303-9/+9
| | | | | | | | Use the helper function to retrieve the driver private context instead of using (void *)(ds + 1). Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* DSA: Convert spaces to tabs where appropriateBarry Grussling2013-01-102-23/+23
| | | | | | | Fix DSA whitespace issues reported by checkpatch.pl Signed-off-by: Barry Grussling <barry@grussling.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* DSA: Convert printk calls to netdev_info callsBarry Grussling2013-01-102-10/+12
| | | | | | | | Convert DSA printk calls to netdev_info calls as recommended by checkpatch.pl. Signed-off-by: Barry Grussling <barry@grussling.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* DSA: Convert repeated msleep calls to timeoutsBarry Grussling2013-01-104-18/+34
| | | | | | | | Convert DSA msleep calls to timeout/usleep_range calls as reported by checkpatch.pl. Signed-off-by: Barry Grussling <barry@grussling.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* DSA: Convert DSA comments to network-style commentsBarry Grussling2013-01-105-232/+93
| | | | | | | | Convert DSA driver comments to network-style comments as reported by checkpatch.pl. Fix spelling error. Signed-off-by: Barry Grussling <barry@grussling.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* dsa: Hide core config options; make drivers select what they needBen Hutchings2012-11-261-0/+4
| | | | | | | | | | | | | | | | | | | | | | Commit 82167cb8c6b2f8166d5c7532e5ef4b5e0cc46a72 ('net: dsa/slave: Fix compilation warnings') fixed one possible invalid configuration (NET_DSA enabled with no trailer formats) but added others: drivers can select NET_DSA without its dependencies being met. It's not very useful to make either the DSA core or the tagging formats manually selectable without a driver to use them, so: 1. Define a hidden HAVE_NET_DSA option and move the dependencies of NET_DSA to that. While we're at it, drop the deprecated EXPERIMENTAL dependency. 2. Make NET_DSA and the drivers dependent on HAVE_NET_DSA. 3. Hide the tagging format options again. 4. Make drivers select both NET_DSA and the appropriate tagging format option. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa/slave: Fix compilation warningsviresh kumar2012-11-251-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | Currently when none of CONFIG_NET_DSA_TAG_DSA, CONFIG_NET_DSA_TAG_EDSA and CONFIG_NET_DSA_TAG_TRAILER is defined, we get following compilation warnings: net/dsa/slave.c:51:12: warning: 'dsa_slave_init' defined but not used [-Wunused-function] net/dsa/slave.c:60:12: warning: 'dsa_slave_open' defined but not used [-Wunused-function] net/dsa/slave.c:98:12: warning: 'dsa_slave_close' defined but not used [-Wunused-function] net/dsa/slave.c:116:13: warning: 'dsa_slave_change_rx_flags' defined but not used [-Wunused-function] net/dsa/slave.c:127:13: warning: 'dsa_slave_set_rx_mode' defined but not used [-Wunused-function] net/dsa/slave.c:136:12: warning: 'dsa_slave_set_mac_address' defined but not used [-Wunused-function] net/dsa/slave.c:164:12: warning: 'dsa_slave_ioctl' defined but not used [-Wunused-function] Earlier approach to fix this was discussed here: lkml.org/lkml/2012/10/29/549 This is another approach to fix it. This is done by some changes in config options, which make more sense than the earlier approach. As, atleast one tagging option must always be selected for using net/dsa/ infrastructure, this patch selects NET_DSA from tagging configs instead of having it as an selectable config. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* drivers/net: dsa/mv88e6xxx.c files need linux/module.hPaul Gortmaker2012-01-244-0/+4
| | | | | | | | | | An implicit instance of module.h leaked back into existence and was masking the fact that these drivers weren't calling out the include for itself. Fix the drivers before we remove the implicit include path via net/netprio_cgroup.h file. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* dsa: Add reporting of silicon revision for Marvell 88E6123/88E6161/88E6165 ↵Chris Healy2012-01-231-4/+17
| | | | | | | | | switches. Add reporting of silicon revision during the probe function for Marvell 88E6123/88E6161/88E6165 switches. Signed-off-by: Chris Healy <cphealy@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* dsa: Move switch drivers to new directory drivers/net/dsaBen Hutchings2011-11-297-0/+1858
Support for specific hardware belongs under drivers/net/ not net/. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Acked-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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