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path: root/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c
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2018-03-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
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>
2018-03-20mlxsw: spectrum_acl: Adapt ACL configuration to new firmware versionsIdo Schimmel
The driver currently creates empty ACL groups, binds them to the requested port and then fills them with actual ACLs that point to TCAM regions. However, empty ACL groups are considered invalid and upcoming firmware versions are going to forbid their binding. Work around this limitation by only performing the binding after the first ACL was added to the group. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-09mlxsw: spectrum: Fix gact_ok offloadingJiri Pirko
For ok GACT action, TERMINATE binding_cmd should be used in action set passed down to HW. Fixes: b2925957ec1a9 ("mlxsw: spectrum_flower: Offload "ok" termination action") Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reported-by: Alexander Petrovskiy <alexpe@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-27mlxsw: Move a mirroring check to mlxsw_sp_span_entry_createPetr Machata
The check for whether a mirror port (which is a mlxsw front panel port) belongs to the same mlxsw instance as the mirrored port, is currently only done in spectrum_acl, even though it's applicable for the matchall case as well. Thus move it to mlxsw_sp_span_entry_create(). Signed-off-by: Petr Machata <petrm@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-27mlxsw: spectrum_span: Generalize SPAN supportPetr Machata
To support mirroring to different device types, the functions that partake in configuring the port analyzer need to be extended to admit non-trivial SPAN types. Create a structure where all details of SPAN configuration are kept, struct mlxsw_sp_span_parms. Also create struct mlxsw_sp_span_entry_ops to keep per-SPAN-type operations. Instantiate the latter once for MLXSW_REG_MPAT_SPAN_TYPE_LOCAL_ETH, and once for a suite of NOP callbacks used for invalidated SPAN entry. Put the formet as a sole member of a new array mlxsw_sp_span_entry_types, where all known SPAN types are kept. Introduce a new function, mlxsw_sp_span_entry_ops(), to look up the right ops suite given a netdevice. Change mlxsw_sp_span_mirror_add() to use both parms and ops structures. Change mlxsw_sp_span_entry_get() and mlxsw_sp_span_entry_create() to take these as arguments. Modify mlxsw_sp_span_entry_configure() and mlxsw_sp_span_entry_deconfigure() to dispatch to ops. Signed-off-by: Petr Machata <petrm@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-27mlxsw: spectrum: Keep mirror netdev in mlxsw_sp_span_entryPetr Machata
Currently the only mirror action supported by mlxsw is mirror to another mlxsw physical port. Correspondingly, span_entry, which tracks each mlxsw mirror in the system, currently holds a u8 number of the destination port. To extend this system to mirror to gretap and ip6gretap netdevices, have struct mlxsw_sp_span_entry actually hold the destination netdevice itself. This change then trickles down in obvious manner to SPAN module API and mirror-related interfaces in struct mlxsw_afa_ops. To prevent use of invalid pointer, NETDEV_UNREGISTER needs to be hooked and the corresponding SPAN entry invalidated. Signed-off-by: Petr Machata <petrm@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-21mlxsw: spectrum_acl: Add support for mirror actionArkadi Sharshevsky
Add support for mirror action. Only one mirror action can be set per rule. Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-21mlxsw: core: Make counter index allocated inside the action appendJiri Pirko
So far, the caller of mlxsw_afa_block_append_counter needed to allocate counter index by hand. Benefit from the previously introduced resource infra and counter_index_get/put callbacks, and allocate the counter index in place where it is needed, inside the action append function. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-17mlxsw: spectrum_acl: Pass mlxsw_sp_port down to ruleset bind/unbind opsJiri Pirko
No need to convert from mlxsw_sp_port to net_device and back again. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-17mlxsw: spectrum_acl: Implement TC block sharingJiri Pirko
Benefit from the prepared TC and in-driver ACL infrastructure and introduce block sharing offload. For that, a new struct "block" is introduced in spectrum_acl in order to hold a list of specific block-port bindings. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-17mlxsw: spectrum_acl: Don't store netdev and ingress for ruleset unbindJiri Pirko
Instead, pass netdev and ingress flag to ruleset unbind op. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-17mlxsw: spectrum_acl: Reshuffle code around mlxsw_sp_acl_ruleset_create/destroyJiri Pirko
In order to prepare for follow-up changes, make the bind/unbind helpers very simple. That required move of ht insertion/removal and bind/unbind calls into mlxsw_sp_acl_ruleset_create/destroy. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-26mlxsw: spectrum_acl: Propagate errors from mlxsw_afa_block_jump/continueJiri Pirko
Propagate error instead of doing WARN_ON right away. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-19mlxsw: acl: Change trap ACL action to get the trap_id as a parameterYotam Gigi
Allow the trap ACL action to be configured with different traps. This allows the multicast router offloading code to use that same ACL action with the multicast router traps. By using different traps, the multicast router can have different trap policies and can handle the packet differently. Signed-off-by: Yotam Gigi <yotamg@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-19mlxsw: spectrum: Move ACL flexible actions instance to spectrumYotam Gigi
A flexible action instance allows, given a set of ops, creating, committing and sharing a set of ACL action blocks. The flexible action instance in question is using the spectrum KVD linear space to store the flexible action sets. Move this flexible action instance to the common spectrum struct to allow other users (such as multicast router) to get that functionality. Signed-off-by: Yotam Gigi <yotamg@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-23mlxsw: spectrum_acl: Provide helper to lookup rulesetJiri Pirko
We need to lookup ruleset in order to offload goto_chain termination action. This patch adds it. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-23mlxsw: spectrum_acl: Allow to get group_id value for a rulesetJiri Pirko
For goto_chain action we need to know group_id of a ruleset to jump to. Provide infrastructure in order to get it. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-23mlxsw: spectrum: Offload multichain TC rulesJiri Pirko
Reflect chain index coming down from TC core and create a ruleset per chain. Note that only chain 0, being the implicit chain, is bound to the device for processing. The rest of chains have to be "jumped-to" by actions. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-31mlxsw: spectrum_acl: Fix a typoPetr Machata
Signed-off-by: Petr Machata <petrm@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-06acl: Introduce ACL trap actionJiri Pirko
Use trap/discard flex action to implement trap. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Yotam Gigi <yotamg@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-26mlxsw: spectrum: Implement common FID coreIdo Schimmel
The device supports three types of FIDs. 802.1Q and 802.1D FIDs for VLAN-aware and VLAN-unaware bridges (respectively) and rFIDs to transport packets to the router block. The different users (e.g., bridge, router, ACLs) of the FIDs infrastructure need not know about the internal FIDs implementation and can therefore interact with it using a restricted set of exported functions. By encapsulating the entire FID logic and hiding it from the rest of the driver we get a code base that it much simpler and easier to work with and extend. For example, in the current Spectrum ASIC only 802.1D FIDs can be assigned a VNI, but future ASICs will also support 802.1Q FIDs. With this patch in place, support for future ASICs can be easily added by implementing a new FID operations according to their capabilities. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-20mlxsw: spectrum: Implement action to set FIDJiri Pirko
Implement part of multipurpose Virtual Router and Forwarding Domain Action that takes care of setting up FID. We need to use it to be able to forward packets using ACL action when no FID is associated on RX. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-25mlxsw: spectrum_kvdl: Cosmetic kvdl allocator API changeArkadi Sharshevsky
Currently the return allocated index and err value are multiplexed. This patch changes the API to decouple the ret value from the allocated index. Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-12mlxsw: spectrum: Add support for TC flower offload statisticsArkadi Sharshevsky
Add support for TC flower offload statistics including number of packets, bytes and last use timestamp. Currently the statistics are gathered on a per-rule basis. Signed-off-by: Arkadi Sharshvesky <arkadis@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-12mlxsw: spectrum: Add support for counters on TCAM entriesArkadi Sharshevsky
Add support for packets and byte statistics on TCAM entries. The counters are allocated from the generic flow counters pool. Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-12mlxsw: spectrum: Add periodic ACL rule activity updateArkadi Sharshevsky
Introduce periodic task for dumping the activity status for the ACL rule TCAM entries. This is done in order to emulate last use statistics. Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.comi> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-12mlxsw: spectrum: Add support for direct rule accessArkadi Sharshevsky
Currently the ACL rules can be accessed only by hashing. In order to dump the activity the rules are also placed in a list. Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-09mlxsw: spectrum: Add support for vlan modify TC actionPetr Machata
Add VLAN action offloading. Invoke it from Spectrum flower handler for "vlan modify" actions. Signed-off-by: Petr Machata <petrm@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-03mlxsw: spectrum: Introduce ACL core with simple TCAM implementationJiri Pirko
Add ACL core infrastructure for Spectrum ASIC. This infra provides an abstraction layer over specific HW implementations. There are two basic objects used. One is "rule" and the second is "ruleset" which serves as a container of multiple rules. In general, within one ruleset the rules are allowed to have multiple priorities and masks. Each ruleset is bound to either ingress or egress a of port netdevice. The initial TCAM implementation is very simple and limited. It utilizes parman lsort manager to take care of TCAM region layout. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>