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path: root/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
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2021-11-30devlink: Simplify devlink resources unregister callLeon Romanovsky
The devlink_resources_unregister() used second parameter as an entry point for the recursive removal of devlink resources. None of the callers outside of devlink core needed to use this field, so let's remove it. As part of this removal, the "struct devlink_resource" was moved from .h to .c file as it is not possible to use in any place in the code except devlink.c. Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
drivers/net/ipa/ipa_main.c 8afc7e471ad3 ("net: ipa: separate disabling setup from modem stop") 76b5fbcd6b47 ("net: ipa: kill ipa_modem_init()") Duplicated include, drop one. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-11-23mlxsw: spectrum: Protect driver from buggy firmwareAmit Cohen
When processing port up/down events generated by the device's firmware, the driver protects itself from events reported for non-existent local ports, but not the CPU port (local port 0), which exists, but lacks a netdev. This can result in a NULL pointer dereference when calling netif_carrier_{on,off}(). Fix this by bailing early when processing an event reported for the CPU port. Problem was only observed when running on top of a buggy emulator. Fixes: 28b1987ef506 ("mlxsw: spectrum: Register CPU port with devlink") Signed-off-by: Amit Cohen <amcohen@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-23mlxsw: spectrum: Allow driver to load with old firmware versionsDanielle Ratson
The driver fails to load with old firmware versions that cannot report the maximum number of RIF MAC profiles [1]. Fix this by defaulting to a maximum of a single profile in such situations, as multiple profiles are not supported by old firmware versions. [1] mlxsw_spectrum 0000:03:00.0: cannot register bus device mlxsw_spectrum: probe of 0000:03:00.0 failed with error -5 Fixes: 1c375ffb2efab ("mlxsw: spectrum_router: Expose RIF MAC profiles to devlink resource") Signed-off-by: Danielle Ratson <danieller@nvidia.com> Reported-by: Vadim Pasternak <vadimp@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-19mlxsw: constify address in mlxsw_sp_port_dev_addr_setJakub Kicinski
Argument comes from netdev->dev_addr directly, it needs a const. Reviewed-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-26mlxsw: spectrum_router: Expose RIF MAC profiles to devlink resourceDanielle Ratson
Expose via devlink-resource the maximum number of RIF MAC profiles and their current occupancy, so it can be used for debug and writing generic tests, like in the next patch. Example for Spectrum-2 output: $ devlink resource show pci/0000:06:00.0 ... name rif_mac_profiles size 4 occ 0 unit entry dpipe_tables none Signed-off-by: Danielle Ratson <danieller@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-19ethernet: mlxsw: use eth_hw_addr_gen()Jakub Kicinski
Commit 406f42fa0d3c ("net-next: When a bond have a massive amount of VLANs...") introduced a rbtree for faster Ethernet address look up. To maintain netdev->dev_addr in this tree we need to make all the writes to it got through appropriate helpers. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-13mlxsw: spectrum_qdisc: Introduce per-TC ECN countersPetr Machata
The Qdisc code in mlxsw used to report a number of packets ECN-marked on a port. Because reporting a per-port value as a per-TC value was misleading, this was removed in commit 8a29581eb001 ("mlxsw: spectrum: Move the ECN-marked packet counter to ethtool"). On Spectrum-3, a per-TC number of ECN-marked packets is available in per-TC congestion counter group. Add a new array for the ECN counter, fetch the values from the per-TC congestion group, and pick the value indicated by tclass_num as appropriate. On Spectrum-1 and Spectrum-2, this per-TC value is not available, and zeroes will be reported, as they currently are. Signed-off-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-10-13mlxsw: reg: Rename MLXSW_REG_PPCNT_TC_CONG_TC to _CNTPetr Machata
The name does not make sense as it is. Clearly there is a typo and the suffix should have been _CNT, like the other enumerators. Fix accordingly. Signed-off-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-10-12mlxsw: spectrum_qdisc: Offload RED qevent markPetr Machata
The RED "mark" qevent can be offloaded under similar conditions as the RED "early_drop" qevent. Therefore recognize its binding type in the TC_SETUP_BLOCK handler and translate to the right SPAN trigger, with the right set of supported actions. Signed-off-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-05ethernet: use eth_hw_addr_set() for dev->addr_len casesJakub Kicinski
Convert all Ethernet drivers from memcpy(... dev->addr_len) to eth_hw_addr_set(): @@ expression dev, np; @@ - memcpy(dev->dev_addr, np, dev->addr_len) + eth_hw_addr_set(dev, np) In theory addr_len may not be ETH_ALEN, but we don't expect non-Ethernet devices to live under this directory, and only the following cases of setting addr_len exist: - cxgb4 for mgmt device, and the drivers which set it to ETH_ALEN: s2io, mlx4, vxge. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-09-15mlxsw: Track per-module port statusIdo Schimmel
In the common port module core, track the number of logical ports that are mapped to the port module and the number of logical ports using it that are administratively up. This will be used by later patches to potentially veto and control certain operations on the module, such as reset and setting its power mode. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-09-15mlxsw: spectrum: Do not return an error in mlxsw_sp_port_module_unmap()Ido Schimmel
The return value is never checked. Allows us to simplify a later patch. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-09-15mlxsw: spectrum: Do not return an error in ndo_stop()Ido Schimmel
The return value is not checked by the networking stack. Allows us to simplify a later patch. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-09-14mlxsw: spectrum: Use PMTDB register to obtain split infoJiri Pirko
Newly introduced PMTDB register is there to provide all needed info about particular requested port split configuration. Use it instead of figuring the info out manually in the driver. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-09-14mlxsw: spectrum: Use PLLP to get front panel number and split numberJiri Pirko
Instead of relying on the values coming from the PMLP register, use PLLP to get the information about port front panel number and split number. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-09-14mlxsw: spectrum: Move port SWID set before core port initJiri Pirko
During port creation, mlxsw_core_port_init() is called with the front panel port number and the split port sub-number. Currently, this information is determined by the driver without firmware assistance. Subsequent patches are going to query this information from firmware, but this requires the port to assigned to SWID. Therefore, move port SWID assignment before mlxsw_core_port_init(). Signed-off-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-09-14mlxsw: spectrum: Move port module mapping before core port initJiri Pirko
During port creation, mlxsw_core_port_init() is called with the front panel port number and the split port sub-number. Currently, this information is determined by the driver without firmware assistance. Subsequent patches are going to query this information from firmware, but this requires the port to be mapped to a module. Therefore, move port mapping before mlxsw_core_port_init(). Signed-off-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-09-14mlxsw: spectrum: Bump minimum FW version to xx.2008.3326Jiri Pirko
Add latest verified version of Nvidia Spectrum-family switch firmware, for Spectrum (13.2008.3326), Spectrum-2 (29.2008.3326) and Spectrum-3 (30.2008.3326). Signed-off-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22mlxsw: spectrum: Add infrastructure for parsing configurationAmit Cohen
Spectrum ASICs have a configurable limit on how deep into the packet they parse. By default, the limit is 96 bytes. There are several cases where this parsing depth is not enough and there is a need to increase it. Currently, increasing parsing depth is maintained as part of VxLAN module, because the MPRS register which configures parsing depth also configures UDP destination port number used for VxLAN encapsulation and decapsulation. Add an API for increasing parsing depth as part of spectrum.c code, so that it will be possible to use it from other modules. In addition, add an API for setting UDP destination port and protect it using a dedicated lock for saving parsing configurations. The lock is needed as not all the callers hold RTNL lock. Maintain a counter for increased parsing depth consumers. For first consumer subscription, increase the parsing depth and for last consumer unsubscription, set parsing depth to default value. Signed-off-by: Amit Cohen <amcohen@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-27dev_ioctl: split out ndo_eth_ioctlArnd Bergmann
Most users of ndo_do_ioctl are ethernet drivers that implement the MII commands SIOCGMIIPHY/SIOCGMIIREG/SIOCSMIIREG, or hardware timestamping with SIOCSHWTSTAMP/SIOCGHWTSTAMP. Separate these from the few drivers that use ndo_do_ioctl to implement SIOCBOND, SIOCBR and SIOCWANDEV commands. This is a purely cosmetic change intended to help readers find their way through the implementation. Cc: Doug Ledford <dledford@redhat.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Jay Vosburgh <j.vosburgh@gmail.com> Cc: Veaceslav Falico <vfalico@gmail.com> Cc: Andy Gospodarek <andy@greyhouse.net> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Vivien Didelot <vivien.didelot@gmail.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Vladimir Oltean <olteanv@gmail.com> Cc: Leon Romanovsky <leon@kernel.org> Cc: linux-rdma@vger.kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-17mlxsw: Verify the accessed index doesn't exceed the array lengthDanielle Ratson
There are few cases in which an array index queried from a fw register, is accessed without any validation that it doesn't exceed the array length. Add a proper length validation, so accessing memory past the end of an array will be forbidden. Signed-off-by: Danielle Ratson <danieller@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-29mlxsw: spectrum: Veto sampling if already enabled on portIdo Schimmel
The per-port sampling triggers (i.e., ingress / egress) cannot be enabled twice. Meaning, the below configuration will not result in packets being sampled twice: # tc filter add dev swp1 ingress matchall skip_sw action sample rate 100 group 1 # tc filter add dev swp1 ingress matchall skip_sw action sample rate 100 group 1 Therefore, reject such configurations. Fixes: 90f53c53ec4a ("mlxsw: spectrum: Start using sampling triggers hash table") Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-22mlxsw: spectrum_router: Create per-ASIC router operationsIdo Schimmel
There are several differences in the router module between Spectrum-1 and Spectrum-{2,3}. Currently, this is only apparent in the router interface (RIF) operations that are split between these ASICs. A subsequent patch is going to introduce another difference between these ASICs. Create per-ASIC router operations that will encapsulate all these differences. For now, these operations are only used to set the per-ASIC RIF operations in 'mlxsw_sp->router->rif_ops_arr'. Note that this fields was unused since commit 1f5b23033937 ("mlxsw: spectrum: Set RIF ops per ASIC type"). Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-17mlxsw: Add struct mlxsw_sp_switchdev_ops per ASICAmit Cohen
A subsequent patch will need to implement different set of operations when a port joins / leaves an 802.1ad bridge, based on the ASIC type. Prepare for this change by allowing to initialize the bridge module based on the ASIC type via 'struct mlxsw_sp_switchdev_ops'. Signed-off-by: Amit Cohen <amcohen@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-17mlxsw: spectrum: Add mlxsw_sp_port_egress_ethtype_set()Amit Cohen
A subsequent patch will cause decapsulated packets to have their EtherType determined by the egress port. Add mlxsw_sp_port_egress_ethtype_set() which will be called when a port joins an 802.1ad bridge, so that it will set an 802.1ad EtherType on decapsulated packets transmitted through it, instead of the default 802.1q EtherType. Signed-off-by: Amit Cohen <amcohen@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-16mlxsw: spectrum: Track sampling triggers in a hash tableIdo Schimmel
Currently, mlxsw supports a single sampling trigger type (i.e., received packet). When sampling is configured on an ingress port, the sampling parameters (e.g., pointer to the psample group) are stored as an attribute of the port, so that they could be passed to psample_sample_packet() when a sampled packet is trapped to the CPU. Subsequent patches are going to add more types of sampling triggers, making it difficult to maintain the current scheme. Instead, store all the active sampling triggers with their associated parameters in a hash table. That way, more trigger types can be easily added. The next patch will flip mlxsw to use the hash table instead of the current scheme. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-14mlxsw: spectrum: Remove mlxsw_sp_sample_receive()Ido Schimmel
The function resolves the psample sampling group from the Rx port because this is the only form of sampling the driver currently supports. Subsequent patches are going to add support for Tx-based and policy-based sampling, in which case the sampling group would not be resolved from the Rx port. Therefore, move this code to the Rx-specific sampling listener. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-14mlxsw: spectrum: Remove unnecessary RCU read-side critical sectionIdo Schimmel
Since commit 7d8e8f3433dc ("mlxsw: core: Increase scope of RCU read-side critical section"), all Rx handlers are called from an RCU read-side critical section. Remove the unnecessary rcu_read_lock() / rcu_read_unlock(). Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-14psample: Encapsulate packet metadata in a structIdo Schimmel
Currently, callers of psample_sample_packet() pass three metadata attributes: Ingress port, egress port and truncated size. Subsequent patches are going to add more attributes (e.g., egress queue occupancy), which also need an indication whether they are valid or not. Encapsulate packet metadata in a struct in order to keep the number of arguments reasonable. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-11mlxsw: spectrum_matchall: Split sampling support between ASICsIdo Schimmel
Sampling of ingress packets is supported using a dedicated sampling mechanism on all Spectrum ASICs. However, Spectrum-2 and later ASICs support more sophisticated sampling by mirroring packets to the CPU. As a preparation for more advanced sampling configurations, split the sampling operations between Spectrum-1 and later ASICs. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-10mlxsw: spectrum: Bump minimum FW version to xx.2008.2406Petr Machata
The indicated version fixes the following two issues: - MIRROR_SAMPLER_ACTION.mirror_probability_rate inverted. This has implication for per-flow sampling. - When adjacency is replaced-if-inactive (RATR.opcode=3), bad parameter was reported when replacing an active entry. This breaks offload of resilient next-hop groups. Signed-off-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-10mlxsw: spectrum: Reword an error message for Q-in-Q vetoDanielle Ratson
'Uppers' is not clear enough for all users when referring to upper devices. Reword the error message so it will be clearer. Signed-off-by: Danielle Ratson <danieller@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-12-14mlxsw: spectrum: Set KVH XLT cache mode for Spectrum2/3Jiri Pirko
Set a profile option to instruct FW to use 1/2 of KVH for XLT cache, not the whole one. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-14mlxsw: Ignore ports that are connected to eXtended mezanineJiri Pirko
Use the info stored in the bus_info struct about the eXtended mezanine connected ports and don't expose them. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-08mlxsw: spectrum: Publish mlxsw_sp_ethtype_to_sver_type()Amit Cohen
Declare mlxsw_sp_ethtype_to_sver_type() in spectrum.h to enable using it in other files. It will be used in the next patch to map between EtherType and the relevant value configured by SVER register. Signed-off-by: Amit Cohen <amcohen@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-12-06mlxsw: spectrum: Bump minimum FW version to xx.2008.2018Petr Machata
The indicated version fixes an issue whereby the MOMTE register would by default enable mirroring of ECN-marked traffic from all traffic classes, once the ECN mirroring was configured. This fix is necessary for offload of RED "ecn_mark" qevent. Signed-off-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-12-06mlxsw: spectrum: Apply RIF configuration when joining a LAGIdo Schimmel
In case a router interface (RIF) is configured for a LAG, make sure its configuration is applied on the new LAG member. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-12-01mlxsw: Add QinQ configuration vetoesDanielle Ratson
After adding support for QinQ, a.k.a 802.1ad protocol, there are a few scenarios that should be vetoed. The vetoes are motivated by various ASIC limitations. For example, a port that is member in a 802.1ad bridge cannot have 802.1q uppers as the port needs to be configured to treat 802.1q packets as untagged packets. Veto all those unsupported scenarios and return suitable messages. Signed-off-by: Danielle Ratson <danieller@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-01mlxsw: spectrum_switchdev: Add support of QinQ trafficAmit Cohen
802.1ad, also known as QinQ is an extension to the 802.1q standard, which is concerned with passing possibly 802.1q-tagged packets through another VLAN-like tunnel. The format of 802.1ad tag is the same as 802.1q, except it uses the EtherType of 0x88a8, unlike 802.1q's 0x8100. Add support for 802.1ad protocol. Most of the configuration is the same as 802.1q. The difference is that before a port joins an 802.1ad bridge it needs to be configured to recognize 802.1ad packets as tagged and other packets (e.g., 802.1q) as untagged. VXLAN is not currently supported with 802.1ad bridge, so return an error with an appropriate extack message. Signed-off-by: Amit Cohen <amcohen@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-01mlxsw: Make EtherType configurable when pushing VLAN at ingressAmit Cohen
Currently, when pushing a PVID at ingress, mlxsw always uses 802.1q EtherType. Make this EtherType configurable by extending mlxsw_sp_port_pvid_set() with an EtherType argument. This is a preparation for QinQ support, that needs to push a PVID with 802.1ad EtherType. Signed-off-by: Amit Cohen <amcohen@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-01mlxsw: spectrum: Only treat 802.1q packets as tagged packetsAmit Cohen
By default, the device considers both 802.1ad and 802.1q packets as tagged, but this is not supported by the driver. It only supports VLAN and bridge devices that use 802.1q protocol. Instead, configure the device to only treat 802.1q packets as tagged packets. Signed-off-by: Amit Cohen <amcohen@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-26mlxsw: Only advertise link modes supported by both driver and deviceAmit Cohen
During port creation the driver instructs the device to advertise all the supported link modes queried from the device. Since cited commit not all the link modes supported by the device are supported by the driver. This can result in the device negotiating a link mode that is not recognized by the driver causing ethtool to show an unsupported speed: $ ethtool swp1 ... Speed: Unknown! This is especially problematic when the netdev is enslaved to a bond, as the bond driver uses unknown speed as an indication that the link is down: [13048.900895] net_ratelimit: 86 callbacks suppressed [13048.900902] t_bond0: (slave swp52): failed to get link speed/duplex [13048.912160] t_bond0: (slave swp49): failed to get link speed/duplex Fix this by making sure that only link modes that are supported by both the device and the driver are advertised. Fixes: b97cd891268d ("mlxsw: Remove 56G speed support") Signed-off-by: Amit Cohen <amcohen@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller
Rejecting non-native endian BTF overlapped with the addition of support for it. The rest were more simple overlapping changes, except the renesas ravb binding update, which had to follow a file move as well as a YAML conversion. Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-28net: core: introduce struct netdev_nested_priv for nested interface ↵Taehee Yoo
infrastructure Functions related to nested interface infrastructure such as netdev_walk_all_{ upper | lower }_dev() pass both private functions and "data" pointer to handle their own things. At this point, the data pointer type is void *. In order to make it easier to expand common variables and functions, this new netdev_nested_priv structure is added. In the following patch, a new member variable will be added into this struct to fix the lockdep issue. Signed-off-by: Taehee Yoo <ap420073@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-27mlxsw: Update module's settings when module is plugged inAmit Cohen
Module temperature warning events are enabled for modules that have a temperature sensor and configured according to the temperature thresholds queried from the module. When a module is unplugged we are guaranteed not to get temperature warning events. However, when a module is plugged in we need to potentially update its current settings (i.e., event enablement and thresholds). Register to port module plug/unplug events and update module's settings upon plug in events. Signed-off-by: Amit Cohen <amcohen@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-27mlxsw: spectrum: Initialize netdev's module overheat counterAmit Cohen
The overheat counter is a per-module counter, but it is exposed as part of the corresponding netdev's statistics. It should therefore be presented to user space relative to the netdev's lifetime. Query the counter just before registering the netdev, so that the value exposed to user space will be relative to this initial value. Signed-off-by: Amit Cohen <amcohen@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-27mlxsw: Update transceiver_overheat counter according to MTWEAmit Cohen
MTWE (Management Temperature Warning Event) is triggered when module's temperature is higher than its threshold. Register for MTWE events and increase the module's overheat counter when its corresponding sensor goes above the configured threshold. Signed-off-by: Amit Cohen <amcohen@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-16mlxsw: spectrum_buffers: Introduce shared buffer opsPetr Machata
The size of the internal buffer is currently calculated in the SPAN module. Logically it belongs to the spectrum_buffers module, where it should be moved. However, that being a chip-specific operation, it needs dynamic dispatch. There currently is a chip-specific structure for description of shared buffer values, struct mlxsw_sp_sb_vals. However placing ops into this structure would be confusing. Therefore introduce a new per-chip structure, currently empty, and initialize the ops pointer as appropriate. Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-16mlxsw: spectrum_buffers: Move here the new headroom codePetr Machata
Move all the headroom code to the spectrum_buffers module, where it belongs. Rename mlxsw_sp_pg_buf_threshold_get() and mlxsw_sp_pg_buf_pack() to ..._hdroom_... to match the naming convention of the new headroom code. Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>