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path: root/drivers/net/dsa/bcm_sf2.h
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2019-11-06net: dsa: bcm_sf2: Add support for optional reset controller lineFlorian Fainelli1-0/+3
Grab an optional and exclusive reset controller line for the switch and manage it during probe/remove functions accordingly. For 7278 devices we change bcm_sf2_sw_rst() to use the reset controller line since the WATCHDOG_CTRL register does not reset the switch contrary to stated documentation. 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>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152Thomas Gleixner1-5/+1
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-09net: dsa: bcm_sf2: Add support for CFP statisticsFlorian Fainelli1-0/+5
Return CFP policer statistics (Green, Yellow or Red) as part of the standard ethtool statistics. This helps debug when CFP rules may not be hit (0 counter). Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-09net: dsa: bcm_sf2: Remove stats mutexFlorian Fainelli1-3/+0
We no longer need a dedicated statistics mutex since we leverage b53_common for statistics now. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07net: dsa: bcm_sf2: Restore CFP rules during system resumeFlorian Fainelli1-0/+1
The hardware can lose its context during system suspend, and depending on the switch generation (7445 vs. 7278), while the rules are still there, they will have their valid bit cleared (because that's the fastest way for the HW to reset things). Just make sure we re-apply them coming back from resume. The 7445 switch is an older version of the core that has some quirky RAM technology requiring a delete then re-inser to guarantee the RAM entries are properly latched. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-07net: dsa: bcm_sf2: Keep copy of inserted rulesFlorian Fainelli1-0/+2
We tried hard to use the hardware as a storage area, which made things needlessly complex in that we had to both marshall and unmarshall the ethtool_rx_flow_spec into what the CFP hardware understands but it did not require any driver level allocations, so that was nice. Keep a copy of the ethtool_rx_flow_spec rule we want to insert, and also make sure we don't have a duplicate rule already. This greatly speeds up the deletion time since we only need to clear the slice's valid bit and not perform a full read. This is a preparatory step for being able to restore rules upon system resumption where the hardware loses its context partially or entirely. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-23net: dsa: bcm_sf2: Add support for IPv6 CFP rulesFlorian Fainelli1-0/+1
Inserting IPv6 CFP rules complicates the code a little bit in that we need to insert two rules side by side and chain them to match a full IPv6 tuple (src, dst IPv6 + port + protocol). Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-20net: dsa: b53: Move EEE functions to b53Florian Fainelli1-2/+0
Move the bcm_sf2 EEE-related functions to the b53 driver because this is shared code amongst Gigabit capable switch, only 5325 and 5365 are too old to support that. Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-0/+1
Three cases of simple overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-31net: dsa: bcm_sf2: Fix number of CFP entries for BCM7278Florian Fainelli1-0/+1
BCM7278 has only 128 entries while BCM7445 has the full 256 entries set, fix that. Fixes: 7318166cacad ("net: dsa: bcm_sf2: Add support for ethtool::rxnfc") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-30net: dsa: bcm_sf2: Use correct I/O accessorsFlorian Fainelli1-6/+6
The Starfigther 2 driver currently uses __raw_{read,write}l which means native I/O endian. This works correctly for an ARM LE kernel (default) but fails miserably on an ARM BE (BE8) kernel where registers are kept little endian, so replace uses with {read,write}l_relaxed here which is what we want because this is all performance sensitive code. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-30net: dsa: bcm_sf2: Add support for ethtool::rxnfcFlorian Fainelli1-0/+17
Add support for configuring classification rules using the ethtool::rxnfc API. This is useful to program the switch's CFP/TCAM to redirect specific packets to specific ports/queues for instance. For now, we allow any kind of IPv4 5-tuple matching. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-23net: dsa: bcm_sf2: Allow non-IMP ports to have Broadcom tags enabledFlorian Fainelli1-0/+3
Parse the "brcm,use-bcm-hdr" boolean property during ports identification to fill a bitmask of ports that should have Broadcom tags enabled. This is needed in some configurations where per-packet metadata can be exchanged using Broadcom tags between the switch and an on-chip acceleration device. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-23net: dsa: bcm_sf2: Prepare for different register layoutsFlorian Fainelli1-2/+32
In preparation for supporting a new device with a slightly different register layout, affecting the SWITCH_REG and SWITCH_CORE address spaces, perform a few preparatory steps: - allow matching the compatible string against a data description - convert the SWITCH_REG register accesses into an indirection table - prepare for supporting a SWITCH_CORE register alignment requirement Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-23net: dsa: bcm_sf2: Make SF2_IO64_MACRO() utilize 32-bit macroFlorian Fainelli1-2/+2
There is no point inlining the 32-bit direct register read/write part, just infer it from the existing macro. This will make it easier to centralize the address rewriting that we are going to introduce later on. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-12net: dsa: bcm_sf2: Get VLAN_PORT_MASK from b53_deviceFlorian Fainelli1-2/+0
While migrating the bcm_sf2 driver to use b53_common, we left a small piece untouched where we kept our local copy of the per-port port_vlan_ctl bitmask value. This value is now maintained by b53_device so we need to use it instead of our local (and now stale) copy of it. Fixes: f458995b9ad8 ("net: dsa: bcm_sf2: Utilize core B53 driver when possible") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-02net: dsa: remove ds_to_privVivien Didelot1-1/+1
Access the priv member of the dsa_switch structure directly, instead of having an unnecessary helper. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-1/+1
All three conflicts were cases of simple overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-26net: dsa: bcm_sf2: Remove duplicate codeFlorian Fainelli1-72/+1
Now that we are using b53_common for most VLAN, FDB and bridge operations, delete all the redundant code that we had in bcm_sf2.c to keep only the integration specific logic that we have to deal with: power management, link management and the external interfaces (RGMII, MDIO). Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-26net: dsa: bcm_sf2: Utilize core B53 driver when possibleFlorian Fainelli1-0/+11
The Broadcom Starfighter2 is almost entirely register compatible with B53, yet for historical reasons came up first in the tree and is now being updated to utilize b53_common.c to the fullest extent possible. A few things need to be adjusted to allow that: - the switch "core" registers currently operate on a 32-bit address, whereas b53 passes a page + reg pair to offset from, so we need to convert that, thankfully there is a generic formula to do that - the link managemenent is not self contained with the B53/CORE register set, but instead is in the SWITCH_REG block which is part of the integration glue logic, so we keep that entirely custom here because this really is part of the existing bcm_sf2 implementation - there are additional power management constraints on the port's memories that make us keep the port_enable/disable callbacks custom for now, also, we support tagging whereas b53_common does not support that yet All the VLAN and bridge code is entirely identical though so, avoid duplicating it. Other things will be migrated in the future like EEE and possibly Wake-on-LAN. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-26net: dsa: bcm_sf2: Fix race condition while unmasking interruptsFlorian Fainelli1-1/+1
We kept shadow copies of which interrupt sources we have enabled and disabled, but due to an order bug in how intrl2_mask_clear was defined, we could run into the following scenario: CPU0 CPU1 intrl2_1_mask_clear(..) sets INTRL2_CPU_MASK_CLEAR bcm_sf2_switch_1_isr read INTRL2_CPU_STATUS and masks with stale irq1_mask value updates irq1_mask value Which would make us loop again and again trying to process and interrupt we are not clearing since our copy of whether it was enabled before still indicates it was not. Fix this by updating the shadow copy first, and then unasking at the HW level. 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>
2016-06-10net: dsa: bcm_sf2: Add VLAN supportFlorian Fainelli1-0/+10
Add support for configuring VLANs on the Broadcom Starfigther2 switch. This is all done through the bridge vlan facility just like other DSA drivers. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-08net: dsa: bcm_sf2: Register our slave MDIO busFlorian Fainelli1-0/+6
Register a slave MDIO bus which allows us to divert problematic read/writes towards conflicting pseudo-PHY address (30). Do no longer rely on DSA's slave_mii_bus, but instead provide our own implementation which offers more flexibility as to what to do, and when to register it. We need to register it by the time we are able to get access to our memory mapped registers, which is not until drv->setup() time. In order to avoid forward declarations, we need to re-order the function bodies a bit. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-23net: dsa: pass bridge down to driversVivien Didelot1-0/+2
Some DSA drivers may or may not support multiple software bridges on top of an hardware switch. It is more convenient for them to access the bridge's net_device for finer configuration. Removing the need to craft and access a bitmask also simplifies the code. This patch changes the signature of bridge related functions, update DSA drivers, and removes dsa_slave_br_port_mask. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-27net: dsa: bcm_sf2: Unhardcode port numbersFlorian Fainelli1-0/+6
While the current driver mostly supports BCM7445 which has a hardcoded location for its MoCA port on port 7 and port 0 for its internal PHY, this is not necessarily true for all other chips out there such as BCM3390 for instance. Walk the list of ports from Device Tree, get their port number ("reg" property), and then parse the "phy-mode" property and initialize two internal variables: moca_port and a bitmask of internal PHYs. Since we use interrupts for the MoCA port, we introduce two helper functions to enable/disable interrupts and do this at the appropriate bank (INTRL2_0 or INTRL2_1). Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-27net: dsa: bcm_sf2: Implement FDB operationsFlorian Fainelli1-0/+56
Add support for the FDB add, delete, and dump operations. The add and delete operations are implemented using directed ARL operations using the specified MAC address and consist in a read operation, write and readback operation. The dump operation consists in using the ARL search and software filtering entries which are not for the desired port. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-10net: dsa: bcm_sf2: Fix 64-bits register writesFlorian Fainelli1-2/+2
The macro to write 64-bits quantities to the 32-bits register swapped the value and offsets arguments, we want to preserve the ordering of the arguments with respect to how writel() is implemented for instance: value first, offset/base second. Fixes: 246d7f773c13 ("net: dsa: add Broadcom SF2 switch driver") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-1/+1
Conflicts: drivers/net/ethernet/rocker/rocker.c The rocker commit was two overlapping changes, one to rename the ->vport member to ->pport, and another making the bitmask expression use '1ULL' instead of plain '1'. Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-26net: dsa: bcm_sf2: add HW bridging supportFlorian Fainelli1-0/+2
Implement the bridge join, leave and set_stp callbacks by making that we do the following: - when a port joins the bridge, all existing ports in the bridge get their VLAN control register updated with that joining port - the joining port is including all existing bridge ports in its own VLAN control register The leave operation is fairly similar, special care must be taken to make sure that port leaving the bridging is not removing itself from its own VLAN control register. Since the various BR_* states apply directly to our HW semantics, we just need to translate these constants into their corresponding HW settings, and voila! We make sure to trigger a fast-ageing process for ports that are joining/leaving the bridge and transition from incompatible states, this is equivalent to triggering an ARL flush for that port. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-21net: dsa: bcm_sf2: fix 64-bits register readsFlorian Fainelli1-1/+1
Reading 64-bits register was not working because we inverted the steps between reading the lower 32-bits of the register and reading the upper 32-bits. Swapping these operations is how the HW guarantees that 64-bits reads are latched correctly. We only have a handful of 64-bits registers for now, mostly MIB counters, so the imapct is low. 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>
2014-09-29net: dsa: bcm_sf2: add support for controlling EEEFlorian Fainelli1-0/+3
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>
2014-09-22net: dsa: bcm_sf2: add support for Wake-on-LANFlorian Fainelli1-0/+3
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>
2014-09-20net: dsa: bcm_sf2: communicate integrated PHY revision to PHY driverFlorian Fainelli1-0/+1
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>
2014-08-28net: dsa: add Broadcom SF2 switch driverFlorian Fainelli1-0/+140
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>