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path: root/drivers/net/dsa/qca8k.c
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2020-11-02net: dsa: qca8k: Fix port MTU settingJonathan McDowell
The qca8k only supports a switch-wide MTU setting, and the code to take the max of all ports was only looking at the port currently being set. Fix to examine all ports. Reported-by: DENG Qingfang <dqfext@gmail.com> Fixes: f58d2598cf70 ("net: dsa: qca8k: implement the port MTU callbacks") Signed-off-by: Jonathan McDowell <noodles@earth.li> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://lore.kernel.org/r/20201030183315.GA6736@earth.li Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-05net: dsa: propagate switchdev vlan_filtering prepare phase to driversVladimir Oltean
A driver may refuse to enable VLAN filtering for any reason beyond what the DSA framework cares about, such as: - having tc-flower rules that rely on the switch being VLAN-aware - the particular switch does not support VLAN, even if the driver does (the DSA framework just checks for the presence of the .port_vlan_add and .port_vlan_del pointers) - simply not supporting this configuration to be toggled at runtime Currently, when a driver rejects a configuration it cannot support, it does this from the commit phase, which triggers various warnings in switchdev. So propagate the prepare phase to drivers, to give them the ability to refuse invalid configurations cleanly and avoid the warnings. Since we need to modify all function prototypes and check for the prepare phase from within the drivers, take that opportunity and move the existing driver restrictions within the prepare phase where that is possible and easy. Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Cc: Hauke Mehrtens <hauke@hauke-m.de> Cc: Woojung Huh <woojung.huh@microchip.com> Cc: Microchip Linux Driver Support <UNGLinuxDriver@microchip.com> Cc: Sean Wang <sean.wang@mediatek.com> Cc: Landen Chao <Landen.Chao@mediatek.com> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Vivien Didelot <vivien.didelot@gmail.com> Cc: Jonathan McDowell <noodles@earth.li> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Claudiu Manoil <claudiu.manoil@nxp.com> Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03net: dsa: qca8k: Add 802.1q VLAN supportJonathan McDowell
This adds full 802.1q VLAN support to the qca8k, allowing the use of vlan_filtering and more complicated bridging setups than allowed by basic port VLAN support. Tested with a number of untagged ports with separate VLANs and then a trunk port with all the VLANs tagged on it. v3: - Pull QCA8K_PORT_VID_DEF changes into separate cleanup patch - Reverse Christmas tree notation for variable definitions - Use untagged instead of tagged for consistency v2: - Return sensible errnos on failure rather than -1 (rmk) - Style cleanups based on Florian's feedback - Silently allow VLAN 0 as device correctly treats this as no tag Signed-off-by: Jonathan McDowell <noodles@earth.li> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03net: dsa: qca8k: Add define for port VIDJonathan McDowell
Rather than using a magic value of 1 when configuring the port VIDs add a QCA8K_PORT_VID_DEF define and use that instead. Also fix up the bitmask in the process; the top 4 bits are reserved so this wasn't a problem, but only masking 12 bits is the correct approach. Signed-off-by: Jonathan McDowell <noodles@earth.li> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20net: dsa: qca8k: implement the port MTU callbacksJonathan McDowell
This switch has a single max frame size configuration register, so we track the requested MTU for each port and apply the largest. v2: - Address review feedback from Vladimir Oltean Signed-off-by: Jonathan McDowell <noodles@earth.li> Acked-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-22net: dsa: qca8k: Minor comment spelling fixJonathan McDowell
Signed-off-by: Jonathan McDowell <noodles@earth.li> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-22net: dsa: qca8k: Improve SGMII interface handlingJonathan McDowell
This patch improves the handling of the SGMII interface on the QCA8K devices. Previously the driver did no configuration of the port, even if it was selected. We now configure it up in the appropriate PHY/MAC/Base-X mode depending on what phylink tells us we are connected to and ensure it is enabled. Tested with a device where the CPU connection is RGMII (i.e. the common current use case) + one where the CPU connection is SGMII. I don't have any devices where the SGMII interface is brought out to something other than the CPU. Signed-off-by: Jonathan McDowell <noodles@earth.li> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-22net: dsa: qca8k: Switch to PHYLINK instead of PHYLIBJonathan McDowell
Update the driver to use the new PHYLINK callbacks, removing the legacy adjust_link callback. Signed-off-by: Jonathan McDowell <noodles@earth.li> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-04net: dsa: qca8k: Fix "Unexpected gfp" kernel exceptionMichal Vokáč
Commit 7e99e3470172 ("net: dsa: remove dsa_switch_alloc helper") replaced the dsa_switch_alloc helper by devm_kzalloc in all DSA drivers. Unfortunately it introduced a typo in qca8k.c driver and wrong argument is passed to the devm_kzalloc function. This fix mitigates the following kernel exception: Unexpected gfp: 0x6 (__GFP_HIGHMEM|GFP_DMA32). Fixing up to gfp: 0x101 (GFP_DMA|__GFP_ZERO). Fix your code! CPU: 1 PID: 44 Comm: kworker/1:1 Not tainted 5.5.9-yocto-ua #1 Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree) Workqueue: events deferred_probe_work_func [<c0014924>] (unwind_backtrace) from [<c00123bc>] (show_stack+0x10/0x14) [<c00123bc>] (show_stack) from [<c04c8fb4>] (dump_stack+0x90/0xa4) [<c04c8fb4>] (dump_stack) from [<c00e1b10>] (new_slab+0x20c/0x214) [<c00e1b10>] (new_slab) from [<c00e1cd0>] (___slab_alloc.constprop.0+0x1b8/0x540) [<c00e1cd0>] (___slab_alloc.constprop.0) from [<c00e2074>] (__slab_alloc.constprop.0+0x1c/0x24) [<c00e2074>] (__slab_alloc.constprop.0) from [<c00e4538>] (__kmalloc_track_caller+0x1b0/0x298) [<c00e4538>] (__kmalloc_track_caller) from [<c02cccac>] (devm_kmalloc+0x24/0x70) [<c02cccac>] (devm_kmalloc) from [<c030d888>] (qca8k_sw_probe+0x94/0x1ac) [<c030d888>] (qca8k_sw_probe) from [<c0304788>] (mdio_probe+0x30/0x54) [<c0304788>] (mdio_probe) from [<c02c93bc>] (really_probe+0x1e0/0x348) [<c02c93bc>] (really_probe) from [<c02c9884>] (driver_probe_device+0x60/0x16c) [<c02c9884>] (driver_probe_device) from [<c02c7fb0>] (bus_for_each_drv+0x70/0x94) [<c02c7fb0>] (bus_for_each_drv) from [<c02c9708>] (__device_attach+0xb4/0x11c) [<c02c9708>] (__device_attach) from [<c02c8148>] (bus_probe_device+0x84/0x8c) [<c02c8148>] (bus_probe_device) from [<c02c8cec>] (deferred_probe_work_func+0x64/0x90) [<c02c8cec>] (deferred_probe_work_func) from [<c0033c14>] (process_one_work+0x1d4/0x41c) [<c0033c14>] (process_one_work) from [<c00340a4>] (worker_thread+0x248/0x528) [<c00340a4>] (worker_thread) from [<c0039148>] (kthread+0x124/0x150) [<c0039148>] (kthread) from [<c00090d8>] (ret_from_fork+0x14/0x3c) Exception stack(0xee1b5fb0 to 0xee1b5ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 qca8k 2188000.ethernet-1:0a: Using legacy PHYLIB callbacks. Please migrate to PHYLINK! qca8k 2188000.ethernet-1:0a eth2 (uninitialized): PHY [2188000.ethernet-1:01] driver [Generic PHY] qca8k 2188000.ethernet-1:0a eth1 (uninitialized): PHY [2188000.ethernet-1:02] driver [Generic PHY] Fixes: 7e99e3470172 ("net: dsa: remove dsa_switch_alloc helper") Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-08net: dsa: Get information about stacked DSA protocolFlorian Fainelli
It is possible to stack multiple DSA switches in a way that they are not part of the tree (disjoint) but the DSA master of a switch is a DSA slave of another. When that happens switch drivers may have to know this is the case so as to determine whether their tagging protocol has a remove chance of working. This is useful for specific switch drivers such as b53 where devices have been known to be stacked in the wild without the Broadcom tag protocol supporting that feature. This allows b53 to continue supporting those devices by forcing the disabling of Broadcom tags on the outermost switches if necessary. The get_tag_protocol() function is therefore updated to gain an additional enum dsa_tag_protocol argument which denotes the current tagging protocol used by the DSA master we are attached to, else DSA_TAG_PROTO_NONE for the top of the dsa_switch_tree. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-04net: of_get_phy_mode: Change API to solve int/unit warningsAndrew Lunn
Before this change of_get_phy_mode() returned an enum, phy_interface_t. On error, -ENODEV etc, is returned. If the result of the function is stored in a variable of type phy_interface_t, and the compiler has decided to represent this as an unsigned int, comparision with -ENODEV etc, is a signed vs unsigned comparision. Fix this problem by changing the API. Make the function return an error, or 0 on success, and pass a pointer, of type phy_interface_t, where the phy mode should be stored. v2: Return with *interface set to PHY_INTERFACE_MODE_NA on error. Add error checks to all users of of_get_phy_mode() Fixup a few reverse christmas tree errors Fixup a few slightly malformed reverse christmas trees v3: Fix 0-day reported errors. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-28net: dsa: qca8k: Initialize the switch with correct number of portsMichal Vokáč
Since commit 0394a63acfe2 ("net: dsa: enable and disable all ports") the dsa core disables all unused ports of a switch. In this case disabling ports with numbers higher than QCA8K_NUM_PORTS causes that some switch registers are overwritten with incorrect content. To fix this, initialize the dsa_switch->num_ports with correct number of ports. Fixes: 7e99e3470172 ("net: dsa: remove dsa_switch_alloc helper") Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-22net: dsa: remove dsa_switch_alloc helperVivien Didelot
Now that ports are dynamically listed in the fabric, there is no need to provide a special helper to allocate the dsa_switch structure. This will give more flexibility to drivers to embed this structure as they wish in their private structure. Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-22net: dsa: use dsa_to_port helper everywhereVivien Didelot
Do not let the drivers access the ds->ports static array directly while there is a dsa_to_port helper for this purpose. At the same time, un-const this helper since the SJA1105 driver assigns the priv member of the returned dsa_port structure. Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-09-30net: dsa: qca8k: Use up to 7 ports for all operationsMichal Vokáč
The QCA8K family supports up to 7 ports. So use the existing QCA8K_NUM_PORTS define to allocate the switch structure and limit all operations with the switch ports. This was not an issue until commit 0394a63acfe2 ("net: dsa: enable and disable all ports") disabled all unused ports. Since the unused ports 7-11 are outside of the correct register range on this switch some registers were rewritten with invalid content. Fixes: 6b93fb46480a ("net-next: dsa: add new driver for qca8xxx family") Fixes: a0c02161ecfc ("net: dsa: variable number of ports") Fixes: 0394a63acfe2 ("net: dsa: enable and disable all ports") Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-27net: dsa: qca8k: Fix port enable for CPU portAndrew Lunn
The CPU port does not have a PHY connected to it. So calling phy_support_asym_pause() results in an Opps. As with other DSA drivers, add a guard that the port is a user port. Reported-by: Michal Vokáč <michal.vokac@ysoft.com> Fixes: 0394a63acfe2 ("net: dsa: enable and disable all ports") Signed-off-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Michal Vokáč <michal.vokac@ysoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-06net: dsa: qca8k: Add of_node_put() in qca8k_setup_mdio_bus()Nishka Dasgupta
Each iteration of for_each_available_child_of_node() puts the previous node, but in the case of a return from the middle of the loop, there is no put, thus causing a memory leak. Hence add an of_node_put() before the return. Additionally, the local variable ports in the function qca8k_setup_mdio_bus() takes the return value of of_get_child_by_name(), which gets a node but does not put it. If the function returns without putting ports, it may cause a memory leak. Hence put ports before the mid-loop return statement, and also outside the loop after its last usage in this function. Issues found with Coccinelle. Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-30net: dsa: qca8k: enable port flow controlxiaofeis
Set phy device advertising to enable MAC flow control. Signed-off-by: Xiaofei Shen <xiaofeis@codeaurora.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-07-12net: dsa: qca8k: replace legacy gpio includeChristian Lamparter
This patch replaces the legacy bulk gpio.h include with the proper gpio/consumer.h variant. This was caught by the kbuild test robot that was running into an error because of this. For more information why linux/gpio.h is bad can be found in: commit 56a46b6144e7 ("gpio: Clarify that <linux/gpio.h> is legacy") Reported-by: kbuild test robot <lkp@intel.com> Link: https://www.spinics.net/lists/netdev/msg584447.html Fixes: a653f2f538f9 ("net: dsa: qca8k: introduce reset via gpio feature") Signed-off-by: Christian Lamparter <chunkeey@gmail.com> Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-27net: dsa: qca8k: introduce reset via gpio featureChristian Lamparter
The QCA8337(N) has a RESETn signal on Pin B42 that triggers a chip reset if the line is pulled low. The datasheet says that: "The active low duration must be greater than 10 ms". This can hopefully fix some of the issues related to pin strapping in OpenWrt for the EA8500 which suffers from detection issues after a SoC reset. Please note that the qca8k_probe() function does currently require to read the chip's revision register for identification purposes. Signed-off-by: Christian Lamparter <chunkeey@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-26net: dsa: qca8k: extend slave-bus implementationsChristian Lamparter
This patch implements accessors for the QCA8337 MDIO access through the MDIO_MASTER register, which makes it possible to access the PHYs on slave-bus through the switch. In cases where the switch ports are already mapped via external "phy-phandles", the internal mdio-bus is disabled in order to prevent a duplicated discovery and enumeration of the same PHYs. Don't use mixed external and internal mdio-bus configurations, as this is not supported by the hardware. Signed-off-by: Christian Lamparter <chunkeey@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-26net: dsa: qca8k: remove leftover phy accessorsChristian Lamparter
This belated patch implements Andrew Lunn's request of "remove the phy_read() and phy_write() functions." <https://lore.kernel.org/patchwork/comment/902734/> While seemingly harmless, this causes the switch's user port PHYs to get registered twice. This is because the DSA subsystem will create a slave mdio-bus not knowing that the qca8k_phy_(read|write) accessors operate on the external mdio-bus. So the same "bus" gets effectively duplicated. Cc: stable@vger.kernel.org Fixes: 6b93fb46480a ("net-next: dsa: add new driver for qca8xxx family") Signed-off-by: Christian Lamparter <chunkeey@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-24dsa: Remove phydev parameter from disable_port callAndrew Lunn
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>
2019-02-19net: dsa: qca8k: Enable delay for RGMII_ID modeVinod Koul
RGMII_ID specifies that we should have internal delay, so resurrect the delay addition routine but under the RGMII_ID mode. Fixes: 40269aa9f40a ("net: dsa: qca8k: disable delay for RGMII mode") Tested-by: Michal Vokáč <michal.vokac@ysoft.com> Signed-off-by: Vinod Koul <vkoul@kernel.org> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-01-22net: dsa: qca8k: disable delay for RGMII modeVinod Koul
In RGMII mode we should not have any delay in port MAC, so disable the delay. Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-21net: dsa: qca8k: simplify getting .driver_dataWolfram Sang
We should get 'driver_data' from 'struct device' directly. Going via platform_device is an unneeded step back and forth. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-23net: dsa: qca8k: Remove redundant parenthesesMichal Vokáč
Fix warning reported by checkpatch. Signed-off-by: Michal Vokáč <michal.vokac@ysoft.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>
2018-05-23net: dsa: qca8k: Replace GPL boilerplate by SPDXMichal Vokáč
Replace the GPLv2 license boilerplate with the SPDX license identifier. Signed-off-by: Michal Vokáč <michal.vokac@ysoft.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>
2018-05-23net: dsa: qca8k: Allow overwriting CPU port settingMichal Vokáč
Implement adjust_link function that allows to overwrite default CPU port setting using fixed-link device tree subnode. Signed-off-by: Michal Vokáč <michal.vokac@ysoft.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>
2018-05-23net: dsa: qca8k: Force CPU port to its highest bandwidthMichal Vokáč
By default autonegotiation is enabled to configure MAC on all ports. For the CPU port autonegotiation can not be used so we need to set some sensible defaults manually. This patch forces the default setting of the CPU port to 1000Mbps/full duplex which is the chip maximum capability. Also correct size of the bit field used to configure link speed. Fixes: 6b93fb46480a ("net-next: dsa: add new driver for qca8xxx family") Signed-off-by: Michal Vokáč <michal.vokac@ysoft.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>
2018-05-23net: dsa: qca8k: Enable RXMAC when bringing up a portMichal Vokáč
When a port is brought up/down do not enable/disable only the TXMAC but the RXMAC as well. This is essential for the CPU port to work. Fixes: 6b93fb46480a ("net-next: dsa: add new driver for qca8xxx family") Signed-off-by: Michal Vokáč <michal.vokac@ysoft.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>
2018-05-23net: dsa: qca8k: Add support for QCA8334 switchMichal Vokáč
Add support for the four-port variant of the Qualcomm QCA833x switch. Signed-off-by: Michal Vokáč <michal.vokac@ysoft.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>
2018-04-27net: dsa: Pass stringset to ethtool operationsFlorian Fainelli
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 Lunn
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>
2017-11-13net: dsa: Pass a port to get_tag_protocol()Florian Fainelli
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>
2017-10-28net: dsa: introduce dsa_user_ports helperVivien Didelot
Introduce a dsa_user_ports() helper to return the ds->enabled_port_mask mask which is more explicit. This will also minimize diffs when touching this internal mask. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-28net: dsa: use dsa_is_user_port everywhereVivien Didelot
Most of the DSA code still check ds->enabled_port_mask directly to inspect a given port type instead of using the provided dsa_is_user_port helper. Change this. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-18net: dsa: add dsa_to_port helperVivien Didelot
The dsa_port structure is part of DSA core data and must only be updated by the later. It is OK and sometimes necessary for the DSA drivers to access this data, but this has to be read only. For that purpose, add a dsa_to_port() helper which returns a const pointer to a dsa_port structure which must be used by DSA drivers from now on instead of digging into ds->ports[] themselves. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-21net: dsa: use dedicated CPU portVivien Didelot
Each port in DSA has its own dedicated CPU port currently available in its parent switch's ds->ports[port].cpu_dp. Use it instead of getting the unique tree CPU port, which will be deprecated soon. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-29net: dsa: make some structures constBhumika Goyal
Make these const as they are not modified anywhere. Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07net: dsa: Move FDB dump implementation inside DSAArkadi Sharshevsky
>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 prepare phase for FDBArkadi Sharshevsky
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 Sharshevsky
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>
2017-08-01net: dsa: rename switch EEE opsVivien Didelot
To avoid confusion with the PHY EEE settings, rename the .set_eee and .get_eee ops to respectively .set_mac_eee and .get_mac_eee. 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>
2017-08-01net: dsa: remove PHY device argument from .set_eeeVivien Didelot
The DSA switch operations for EEE are only meant to configure a port's MAC EEE settings. The port's PHY EEE settings are accessed by the DSA layer and must be made available via a proper PHY driver. In order to reduce this confusion, remove the phy_device argument from the .set_eee operation. 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>
2017-08-01net: dsa: call phy_init_eee in DSA layerVivien Didelot
All DSA drivers are calling phy_init_eee if eee_enabled is true. Move up this statement in the DSA layer to simplify the DSA drivers. qca8k does not require to cache the ethtool_eee structures from now on. 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>
2017-08-01net: dsa: qca8k: empty qca8k_get_eeeVivien Didelot
phy_ethtool_get_eee is already called by the DSA layer, thus remove the duplicated call in the qca8k driver. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-01net: dsa: qca8k: do not cache unneeded EEE fieldsVivien Didelot
The qca8k driver is currently caching a bitfield of the supported member of a ethtool_eee private structure, which is unused. Only the eee_enabled field of the private ethtool_eee copy is updated, thus using p->advertised and p->lp_advertised is also erroneous. Remove the usage of these private ethtool_eee members and only rely on phy_ethtool_get_eee to assign the eee_active member. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-01net: dsa: qca8k: enable EEE onceVivien Didelot
If EEE is queried enabled, qca8k_set_eee calls qca8k_eee_enable_set twice (because it is already called in qca8k_eee_init). Fix that. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-01net: dsa: qca8k: fix EEE initVivien Didelot
The qca8k obviously copied code from the sf2 driver as how to set EEE: if (e->eee_enabled) { p->eee_enabled = qca8k_eee_init(ds, port, phydev); if (!p->eee_enabled) ret = -EOPNOTSUPP; } But it did not use the same logic for the EEE init routine, which is "Returns 0 if EEE was not enabled, or 1 otherwise". This results in returning -EOPNOTSUPP on success and caching EEE enabled on failure. This patch fixes the returned value of qca8k_eee_init. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>