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* | net: dsa: mv88e6xxx: Add minimal platform_data supportAndrew Lunn2018-05-201-7/+49
| | | | | | | | | | | | | | | | | | | | Not all the world uses device tree. Some parts of the world still use platform devices and platform data. Add basic support for probing a Marvell switch via platform data. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: Remove OF check for IRQ domainAndrew Lunn2018-05-201-3/+0
| | | | | | | | | | | | | | | | | | | | An IRQ domain will work without an OF node. It is not possible to reference interrupts via a phandle, but C code can still use irq_find_mapping() to get an interrupt from the domain. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | drivers: net: Remove device_node checks with of_mdiobus_register()Florian Fainelli2018-05-162-10/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A number of drivers have the following pattern: if (np) of_mdiobus_register() else mdiobus_register() which the implementation of of_mdiobus_register() now takes care of. Remove that pattern in drivers that strictly adhere to it. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com> Reviewed-by: Fugang Duan <fugang.duan@nxp.com> Reviewed-by: Antoine Tenart <antoine.tenart@bootlin.com> Reviewed-by: Jose Abreu <joabreu@synopsys.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: add a stats setup functionVivien Didelot2018-05-141-17/+10
| | | | | | | | | | | | | | | | Now that the Global 1 specific setup function only setup the statistics unit, kill it in favor of a mv88e6xxx_stats_setup function. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: add IEEE and IP mapping opsVivien Didelot2018-05-144-31/+127
| | | | | | | | | | | | | | | | | | | | | | | | All Marvell switch families except 88E6390 have direct registers in Global 1 for IEEE and IP priorities override mapping. The 88E6390 uses indirect tables instead. Add .ieee_pri_map and .ip_pri_map ops to distinct that and call them from a mv88e6xxx_pri_setup helper. Only non-6390 are concerned ATM. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: use helper for 6390 histogramVivien Didelot2018-05-142-15/+12
| | | | | | | | | | | | | | | | | | | | | | The Marvell 88E6390 model has its histogram mode bits moved in the Global 1 Control 2 register. Use the previously introduced mv88e6xxx_g1_ctl2_mask helper to set them. At the same time complete the documentation of the said register. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2018-05-113-1/+28
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | The bpf syscall and selftests conflicts were trivial overlapping changes. The r8169 change involved moving the added mdelay from 'net' into a different function. A TLS close bug fix overlapped with the splitting of the TLS state into separate TX and RX parts. I just expanded the tests in the bug fix from "ctx->conf == X" into "ctx->tx_conf == X && ctx->rx_conf == X". Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: dsa: mv88e6xxx: Fix PHY interrupts by parameterising PHY base addressAndrew Lunn2018-05-073-1/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Most of the mv88e6xxx switches have the PHYs at address 0, 1, 2, ... The 6341 however has the PHYs at 0x10, 0x11, 0x12. Add a parameter to the info structure for this base address. Testing of 6f88284f3bd7 ("net: dsa: mv88e6xxx: Add MDIO interrupts for internal PHYs") was performed on the 6341. So it works only on the 6341. Use this base information to correctly set the interrupt. Fixes: 6f88284f3bd7 ("net: dsa: mv88e6xxx: Add MDIO interrupts for internal PHYs") Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: bcm_sf2: Get rid of PHYLIB functionsFlorian Fainelli2018-05-111-149/+0
| | | | | | | | | | | | | | | | | | Now that we have converted the bcm_sf2 driver to implement PHYLINK MAC operations, we can remove the PHYLIB callbacks: adjust_link() and fixed_link_update() which are no longer called by DSA. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: add PHYLINK supportRussell King2018-05-113-0/+125
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add rudimentary phylink support to mv88e6xxx. This allows the driver using user ports with fixed links to keep operating normally. User ports with normal PHYs are not affected since the switch automatically manages their link parameters. User facing ports which use a SFP/SFF with a non-fixed link mode might require a call to phylink_mac_change() to operate properly. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> [Andrew: fixed link setting after adding link polling] Signed-off-by: Andrew Lunn <andrew@lunn.ch> [florian: expand commit message] Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: bcm_sf2: Implement phylink_mac_opsFlorian Fainelli2018-05-111-8/+206
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make the bcm_sf2 driver implement phylink_mac_ops since it needs to support a wide variety of network interfaces: internal & external MDIO PHYs, fixed PHYs, MoCA with MMIO link status. A large amount of what needs to be done already exists under bcm_sf2_sw_adjust_link() so we are essentially breaking this down into the necessary operation for PHYLINK to work: mac_config, mac_link_up, mac_link_down and validate. We can now entirely get rid of most of what fixed_link_update() provided because only the link information is actually necessary. We still have to force DUPLEX_FULL for legacy Device Tree bindings that did not specify that before. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: add RMU disable opVivien Didelot2018-05-104-0/+65
| | | | | | | | | | | | | | | | | | | | The RMU mode bits moved a lot within the Global Control 2 register of the Marvell switch families. Add an .rmu_disable op to support at least 3 known alternatives. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: set device numberVivien Didelot2018-05-103-7/+14
| | | | | | | | | | | | | | | | | | | | All Marvell switches supported by mv88e6xxx have to set their device number in the Global Control 2 register. Extract this in a read then write function, called from the device mapping setup code. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: add a cascade port opVivien Didelot2018-05-104-3/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | Only the 88E6185 family has bits 15:12 Cascade Port bits in the Global Control 2 register. Hence inconsistent values are actually written in this register for other families. Add a .set_cascade_port operation to isolate the 88E6185 case, and call it from the device mapping setup function. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: 88E6141/6341 SERDES supportMarek Behún2018-05-103-0/+25
| | | | | | | | | | | | | | | | The 88E6141/6341 switches (also known as Topaz) have 1 SGMII lane, which can be configured the same way as the SERDES lane on 88E6390. Signed-off-by: Marek Behun <marek.behun@nic.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: remove Global 2 setupVivien Didelot2018-04-293-31/+0
| | | | | | | | | | | | | | | | | | | | | | | | The remaining values written to the Switch Management Register in the mv88e6xxx_g2_setup function are specific to 88E6352 and older, and are the default values anyway. Thus remove completely this function. The mv88e6xxx driver no more contains setup code to access arbitrary Global 2 registers. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: move device mapping setupVivien Didelot2018-04-293-32/+44
| | | | | | | | | | | | | | | | Move the Device Mapping setup out of the specific Global 2 code, into the top level device setup function. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: move trunk setupVivien Didelot2018-04-293-6/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the trunking setup out of Global 2 specific setup into the top level mv88e6xxx_setup function. Note that the 88E6390 family calls this LAG instead of Trunk and supports 32 possible ID routing vectors, with LAG ID bit 4 being placed in Global 2 register 0x1D... We don't need Trunk (or LAG) IDs for the moment, thus keep it simple. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | drivers: net: replace UINT64_MAX with U64_MAXJisheng Zhang2018-04-272-7/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | U64_MAX is well defined now while the UINT64_MAX is not, so we fall back to drivers' own definition as below: #ifndef UINT64_MAX #define UINT64_MAX (u64)(~((u64)0)) #endif I believe this is in one phy driver then copied and pasted to other phy drivers. Replace the UINT64_MAX with U64_MAX to clean up the source code. Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: loop: Hook PHY statisticsFlorian Fainelli2018-04-271-2/+3
| | | | | | | | | | | | | | | | We just return the same statistics through ethtool_get_stats() and ethtool_get_phy_stats() for simplicity since this is just a mock-up driver. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: b53: Add support for reading PHY statisticsFlorian Fainelli2018-04-273-10/+70
| | | | | | | | | | | | | | | | | | | | Allow the b53 driver to return PHY statistics when the CPU port used is different than 5, 7 or 8, because those are typically PHY-less on most devices. This is useful for debugging link problems between the switch and an external host when using a non standard CPU port number (e.g: 4). Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: Pass stringset to ethtool operationsFlorian Fainelli2018-04-278-16/+64
|/ | | | | | | | | | | 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>
* net: dsa: mv88e6xxx: Fix receive time stamp race condition.Richard Cochran2018-04-121-2/+10
| | | | | | | | | | | | | | | | | | | | The DSA stack passes received PTP frames to this driver via mv88e6xxx_port_rxtstamp() for deferred delivery. The driver then queues the frame and kicks the worker thread. The work callback reads out the latched receive time stamp and then works through the queue, delivering any non-matching frames without a time stamp. If a new frame arrives after the worker thread has read out the time stamp register but enters the queue before the worker finishes processing the queue, that frame will be delivered without a time stamp. This patch fixes the race by moving the queue onto a list on the stack before reading out the latched time stamp value. Fixes: c6fe0ad2c3499 ("net: dsa: mv88e6xxx: add rx/tx timestamping support") Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: mt7530: Use NULL instead of plain integerFlorian Fainelli2018-04-041-3/+3
| | | | | | | | | | We would be passing 0 instead of NULL as the rsp argument to mt7530_fdb_cmd(), fix that. Fixes: b8f126a8d543 ("net-next: dsa: add dsa support for Mediatek MT7530 switch") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: b53: Fix sparse warnings in b53_mmap.cFlorian Fainelli2018-04-041-9/+24
| | | | | | | | | | | | | | | | | | | sparse complains about the following warnings: drivers/net/dsa/b53/b53_mmap.c:33:31: warning: incorrect type in initializer (different address spaces) drivers/net/dsa/b53/b53_mmap.c:33:31: expected unsigned char [noderef] [usertype] <asn:2>*regs drivers/net/dsa/b53/b53_mmap.c:33:31: got void *priv and indeed, while what we are doing is functional, we are dereferencing a void * pointer into a void __iomem * which is not great. Just use the defined b53_mmap_priv structure which holds our register base and use that. Fixes: 967dd82ffc52 ("net: dsa: b53: Add support for Broadcom RoboSwitch") 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. Miller2018-04-011-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | Minor conflicts in drivers/net/ethernet/mellanox/mlx5/core/en_rep.c, we had some overlapping changes: 1) In 'net' MLX5E_PARAMS_LOG_{SQ,RQ}_SIZE --> MLX5E_REP_PARAMS_LOG_{SQ,RQ}_SIZE 2) In 'net-next' params->log_rq_size is renamed to be params->log_rq_mtu_frames. 3) In 'net-next' params->hard_mtu is added. Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: dsa: mt7530: fix module autoloading for OF platform driversSean Wang2018-03-261-0/+1
| | | | | | | | | | | | | | | | | | It's required to create a modules.alias via MODULE_DEVICE_TABLE helper for the OF platform driver. Otherwise, module autoloading cannot work. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: dsa: mt7530: remove redundant MODULE_ALIAS entriesSean Wang2018-03-261-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | MODULE_ALIAS exports information to allow the module to be auto-loaded at boot for the drivers registered using legacy platform registration. However, currently the driver is always used by DT-only platform, MODULE_ALIAS is redundant and should be removed properly. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: Make VTU miss violations less spammyAndrew Lunn2018-03-291-1/+2
| | | | | | | | | | | | | | | | | | | | | | VTU miss violations can happen under normal conditions. Don't spam the kernel log, downgrade the output to debug level only. The statistics counter will indicate it is happening, if anybody not debugging is interested. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reported-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: Keep ATU/VTU violation statisticsAndrew Lunn2018-03-296-28/+78
| | | | | | | | | | | | | | | | | | Count the numbers of various ATU and VTU violation statistics and return them as part of the ethtool -S statistics. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: Call the common IRQ free codeAndrew Lunn2018-03-251-0/+2
| | | | | | | | | | | | | | | | | | When free'ing the polled IRQs, call the common irq free code. Otherwise the interrupts are left registered, and when we come to load the driver a second time, we get an Opps. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: Use the DT IRQ trigger modeAndrew Lunn2018-03-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | By calling request_threaded_irq() with the flag IRQF_TRIGGER_FALLING we override the trigger mode provided in device tree. And the interrupt is actually active low, which is what all the current device tree descriptions use. Suggested-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Tested-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2018-03-232-3/+6
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fun set of conflict resolutions here... For the mac80211 stuff, these were fortunately just parallel adds. Trivially resolved. In drivers/net/phy/phy.c we had a bug fix in 'net' that moved the function phy_disable_interrupts() earlier in the file, whilst in 'net-next' the phy_error() call from this function was removed. In net/ipv4/xfrm4_policy.c, David Ahern's changes to remove the 'rt_table_id' member of rtable collided with a bug fix in 'net' that added a new struct member "rt_mtu_locked" which needs to be copied over here. The mlxsw driver conflict consisted of net-next separating the span code and definitions into separate files, whilst a 'net' bug fix made some changes to that moved code. The mlx5 infiniband conflict resolution was quite non-trivial, the RDMA tree's merge commit was used as a guide here, and here are their notes: ==================== Due to bug fixes found by the syzkaller bot and taken into the for-rc branch after development for the 4.17 merge window had already started being taken into the for-next branch, there were fairly non-trivial merge issues that would need to be resolved between the for-rc branch and the for-next branch. This merge resolves those conflicts and provides a unified base upon which ongoing development for 4.17 can be based. Conflicts: drivers/infiniband/hw/mlx5/main.c - Commit 42cea83f9524 (IB/mlx5: Fix cleanup order on unload) added to for-rc and commit b5ca15ad7e61 (IB/mlx5: Add proper representors support) add as part of the devel cycle both needed to modify the init/de-init functions used by mlx5. To support the new representors, the new functions added by the cleanup patch needed to be made non-static, and the init/de-init list added by the representors patch needed to be modified to match the init/de-init list changes made by the cleanup patch. Updates: drivers/infiniband/hw/mlx5/mlx5_ib.h - Update function prototypes added by representors patch to reflect new function names as changed by cleanup patch drivers/infiniband/hw/mlx5/ib_rep.c - Update init/de-init stage list to match new order from cleanup patch ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: dsa: Fix functional dsa-loop dependency on FIXED_PHYFlorian Fainelli2018-03-221-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | We have a functional dependency on the FIXED_PHY MDIO bus because we register fixed PHY devices "the old way" which only works if the code that does this has had a chance to run before the fixed MDIO bus is probed. Make sure we account for that and have dsa_loop_bdinfo.o be either built-in or modular depending on whether CONFIG_FIXED_PHY reflects that too. Fixes: 98cd1552ea27 ("net: dsa: Mock-up driver") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: dsa: b53: Use strlcpy() for ethtool::get_stringsFlorian Fainelli2018-03-061-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | Our statistics strings are allocated at initialization without being bound to a specific size, yet, we would copy ETH_GSTRING_LEN bytes using memcpy() which would create out of bounds accesses, this was flagged by KASAN. Replace this with strlcpy() to make sure we are bound the source buffer size and we also always NUL-terminate strings. Fixes: 967dd82ffc52 ("net: dsa: b53: Add support for Broadcom RoboSwitch") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: Fix interrupt name for g2 irqUwe Kleine-König2018-03-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This changes the respective line in /proc/interrupts from 49: x x mv88e6xxx-g1 7 Edge mv88e6xxx-g1 to 49: x x mv88e6xxx-g1 7 Edge mv88e6xxx-g2 which makes more sense. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: Fix typo in a commentUwe Kleine-König2018-03-201-1/+1
| | | | | | | | | | | | Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: Fix name of switch 88E6141Uwe Kleine-König2018-03-201-1/+1
| | | | | | | | | | | | | | | | | | | | The switch name is emitted in the kernel log, so having the right name there is nice. Fixes: 1558727a1c1b ("net: dsa: mv88e6xxx: Add support for ethernet switch 88E6141") Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: Add MDIO interrupts for internal PHYsAndrew Lunn2018-03-183-0/+58
| | | | | | | | | | | | | | | | | | | | | | | | When registering an MDIO bus, it is possible to pass an array of interrupts, one per address on the bus. phylib will then associate the interrupt to the PHY device, if no other interrupt is provided. Some of the global2 interrupts are PHY interrupts. Place them into the MDIO bus structure. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: Add number of internal PHYsAndrew Lunn2018-03-182-0/+29
| | | | | | | | | | | | | | | | | | Add to the info structure the number of internal PHYs, if they generate interrupts. Some of the older generations of switches have internal PHYs, but no interrupt registers. In this case, set the count to zero. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: Add missing g1 IRQ numbersAndrew Lunn2018-03-181-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | With the recent change to polling for interrupts, it is important that the number of global 1 interrupts is listed. Without it, the driver requests an interrupt domain for zero interrupts, which returns EINVAL, and the probe fails. Add two missing entries. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: Fix missing register lock in serdes_get_statsFlorian Fainelli2018-03-181-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can hit the register lock not held assertion with the following path: [ 34.170631] mv88e6085 0.1:00: Switch registers lock not held! [ 34.176510] CPU: 0 PID: 950 Comm: ethtool Not tainted 4.16.0-rc4 #143 [ 34.182985] Hardware name: Freescale Vybrid VF5xx/VF6xx (Device Tree) [ 34.189519] Backtrace: [ 34.192033] [<8010c4b4>] (dump_backtrace) from [<8010c788>] (show_stack+0x20/0x24) [ 34.199680] r6:9f5dc010 r5:00000011 r4:9f5dc010 r3:00000000 [ 34.205434] [<8010c768>] (show_stack) from [<80679d38>] (dump_stack+0x24/0x28) [ 34.212719] [<80679d14>] (dump_stack) from [<804844a8>] (mv88e6xxx_read+0x70/0x7c) [ 34.220376] [<80484438>] (mv88e6xxx_read) from [<804870dc>] (mv88e6xxx_port_get_cmode+0x34/0x4c) [ 34.229257] r5:a09cd128 r4:9ee31d07 [ 34.232880] [<804870a8>] (mv88e6xxx_port_get_cmode) from [<80487e6c>] (mv88e6352_port_has_serdes+0x24/0x64) [ 34.242690] r4:9f5dc010 [ 34.245309] [<80487e48>] (mv88e6352_port_has_serdes) from [<804880b8>] (mv88e6352_serdes_get_stats+0x28/0x12c) [ 34.255389] r4:00000001 [ 34.257973] [<80488090>] (mv88e6352_serdes_get_stats) from [<804811e8>] (mv88e6xxx_get_ethtool_stats+0xb0/0xc0) [ 34.268156] r10:00000000 r9:00000000 r8:00000000 r7:a09cd020 r6:00000001 r5:9f5dc01c [ 34.276052] r4:9f5dc010 [ 34.278631] [<80481138>] (mv88e6xxx_get_ethtool_stats) from [<8064f740>] (dsa_slave_get_ethtool_stats+0xbc/0xc4) mv88e6xxx_get_ethtool_stats() calls mv88e6xxx_get_stats() which calls both chip->info->ops->stats_get_stats(), which holds the register lock, and chip->info->ops->serdes_get_stats() which does not. Have chip->info->ops->serdes_get_stats() be running with the register lock held to avoid such assertions. Fixes: 436fe17d273b ("net: dsa: mv88e6xxx: Allow the SERDES interfaces to have statistics") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: Fix IRQ when loading moduleAndrew Lunn2018-03-171-8/+11
| | | | | | | | | | | | | | | | Handle polled interrupts correctly when loading the module. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Fixes: 294d711ee8c0 ("net: dsa: mv88e6xxx: Poll when no interrupt defined") Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: Fix irq free'ingAndrew Lunn2018-03-091-1/+1
| | | | | | | | | | | | | | | | | | Call the common irq free function, rather than going recursive and blowing away the stack, followed by the machine. Fixes: 294d711ee8c0 ("net: dsa: mv88e6xxx: Poll when no interrupt defined") Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: fix boolreturn.cocci warningsFengguang Wu2018-03-071-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | drivers/net/dsa/mv88e6xxx/serdes.c:66:9-10: WARNING: return of 0/1 in function 'mv88e6352_port_has_serdes' with return type bool Return statements in functions returning bool should use true/false instead of 1/0. Generated by: scripts/coccinelle/misc/boolreturn.cocci Fixes: eb755c3f6b7d ("net: dsa: mv88e6xxx: Add helper to determining if port has SERDES") CC: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: Get mv88e6352 SERDES statisticsAndrew Lunn2018-03-044-4/+103
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for reading the SERDES statistics of the mv88e8352, using the standard ethtool -S option. The SERDES interface can be mapped to either port 4 or 5, so only return statistics on those ports, if the SERDES interface is in use. The counters are reset on read, so need to be accumulated. Add a per port structure to hold the stats counters. The 6352 only has a single SERDES interface and so only one port will using the newly added array. However the 6390 family has as many SERDES interfaces as ports, each with statistics counters. Also, PTP has a number of counters per port which will also need accumulating. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: Add helper to determining if port has SERDESAndrew Lunn2018-03-041-5/+17
| | | | | | | | | | | | | | | | | | Refactor the existing code. This helper will be used for SERDES statistics. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: Allow the SERDES interfaces to have statisticsAndrew Lunn2018-03-042-27/+62
| | | | | | | | | | | | | | | | | | | | | | When gettting the number of statistics, the strings and the actual statistics, call the SERDES ops if implemented. This means the stats code needs to return the number of strings/stats they have placed into the data, so that the SERDES strings/stats can follow on. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: dsa: mv88e6xxx: Hold mutex while doing stats operationsAndrew Lunn2018-03-041-2/+9
| | | | | | | | | | | | | | | | | | | | | | | | Until now, there has been no need to hold the reg mutex while getting the count of statistics, or the strings, because the hardware was not accessed. When adding support for SERDES statistics, it is necessary to access the hardware, to determine if a port is using the SERDES interface. So add mutex lock/unlocks. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | dsa: Pass the port to get_sset_count()Andrew Lunn2018-03-048-8/+8
| | | | | | | | | | | | | | | | | | | | | | 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>
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