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2020-10-03bnx2x: Use fallthrough pseudo-keywordGustavo A. R. Silva1-2/+2
Replace /* no break */ comments with the new pseudo-keyword macro fallthrough[1]. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-03net: ksz884x: Use fallthrough pseudo-keywordGustavo A. R. Silva1-2/+1
Replace /* Fallthrough... */ comment with the new pseudo-keyword macro fallthrough[1]. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-03net: bna: Use fallthrough pseudo-keywordGustavo A. R. Silva1-2/+3
Replace /* !!! fall through !!! */ comments with the new pseudo-keyword macro fallthrough[1]. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-03usbnet: Use fallthrough pseudo-keywordGustavo A. R. Silva1-1/+1
Replace // FALLTHROUGH comment with the new pseudo-keyword macro fallthrough[1]. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-03net/sched: act_mpls: Add action to push MPLS LSE before Ethernet headerGuillaume Nault2-0/+19
Define the MAC_PUSH action which pushes an MPLS LSE before the mac header (instead of between the mac and the network headers as the plain PUSH action does). The only special case is when the skb has an offloaded VLAN. In that case, it has to be inlined before pushing the MPLS header. Signed-off-by: Guillaume Nault <gnault@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-03net/sched: act_vlan: Add {POP,PUSH}_ETH actionsGuillaume Nault6-18/+126
Implement TCA_VLAN_ACT_POP_ETH and TCA_VLAN_ACT_PUSH_ETH, to respectively pop and push a base Ethernet header at the beginning of a frame. POP_ETH is just a matter of pulling ETH_HLEN bytes. VLAN tags, if any, must be stripped before calling POP_ETH. PUSH_ETH is restricted to skbs with no mac_header, and only the MAC addresses can be configured. The Ethertype is automatically set from skb->protocol. These restrictions ensure that all skb's fields remain consistent, so that this action can't confuse other part of the networking stack (like GSO). Since openvswitch already had these actions, consolidate the code in skbuff.c (like for vlan and mpls push/pop). Signed-off-by: Guillaume Nault <gnault@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-03net: phy: dp83869: fix unsigned comparisons against less than zero valuesColin Ian King1-1/+1
Currently the comparisons of u16 integers value and sopass_val with less than zero for error checking is always false because the values are unsigned. Fix this by making these variables int. This does not affect the shift and mask operations performed on these variables Addresses-Coverity: ("Unsigned compared against zero") Fixes: 49fc23018ec6 ("net: phy: dp83869: support Wake on LAN") Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Dan Murphy <dmurphy@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-03net/smc: use an array to check fields in system EIDKarsten Graul1-1/+1
The check for old hardware versions that did not have SMCDv2 support was using suspicious pointer magic. Address the fields using an array. Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-03net/smc: send ISM devices with unique chid in CLC proposalKarsten Graul1-1/+17
When building a CLC proposal message then the list of ISM devices does not need to contain multiple devices that have the same chid value, all these devices use the same function at the end. Improve smc_find_ism_v2_device_clnt() to collect only ISM devices that have unique chid values. Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-03powerpc: dts: t1040rdb: add ports for Seville Ethernet switchVladimir Oltean1-0/+107
Define the network interface names for the switch ports and hook them up to the 2 QSGMII PHYs that are onboard. A conscious decision was taken to go along with the numbers that are written on the front panel of the board and not with the hardware numbers of the switch chip ports. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Maxim Kochetkov <fido_max@inbox.ru> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-03powerpc: dts: t1040: add bindings for Seville Ethernet switchVladimir Oltean1-0/+78
Add the description of the embedded L2 switch inside the SoC dtsi file for NXP T1040. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Maxim Kochetkov <fido_max@inbox.ru> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-03tcp: account total lost packets properlyYuchung Cheng1-0/+10
The retransmission refactoring patch 686989700cab ("tcp: simplify tcp_mark_skb_lost") does not properly update the total lost packet counter which may break the policer mode in BBR. This patch fixes it. Fixes: 686989700cab ("tcp: simplify tcp_mark_skb_lost") Reported-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-03net/iucv: fix indentation in __iucv_message_receive()Julian Wiedmann1-5/+3
smatch complains about net/iucv/iucv.c:1119 __iucv_message_receive() warn: inconsistent indenting While touching this line, also make the return logic consistent and thus get rid of a goto label. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Reviewed-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-03net/af_iucv: right-size the uid variable in iucv_sock_bind()Julian Wiedmann1-1/+1
smatch complains about net/iucv/af_iucv.c:624 iucv_sock_bind() error: memcpy() 'sa->siucv_user_id' too small (8 vs 9) Which is absolutely correct - the memcpy() takes 9 bytes (sizeof(uid)) from an 8-byte field (sa->siucv_user_id). Luckily the sockaddr_iucv struct contains more data after the .siucv_user_id field, and we checked the size of the passed data earlier on. So the memcpy() won't accidentally read from an invalid location. Fix the warning by reducing the size of the uid variable to what's actually needed, and thus reducing the amount of copied data. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Reviewed-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-03net: remove NETDEV_HW_ADDR_T_SLAVETaehee Yoo1-3/+2
NETDEV_HW_ADDR_T_SLAVE is not used anymore, remove it. Signed-off-by: Taehee Yoo <ap420073@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-03genetlink: allow dumping command-specific policyJakub Kicinski2-5/+37
Right now CTRL_CMD_GETPOLICY can only dump the family-wide policy. Support dumping policy of a specific op. v3: - rebase after per-op policy export and handle that v2: - make cmd U32, just in case. v1: - don't echo op in the output in a naive way, this should make it cleaner to extend the output format for dumping policies for all the commands at once in the future. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/r/20201001225933.1373426-11-kuba@kernel.org Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-03genetlink: properly support per-op policy dumpingJohannes Berg2-10/+102
Add support for per-op policy dumping. The data is pretty much as before, except that now the assumption that the policy with index 0 is "the" policy no longer holds - you now need to look at the new CTRL_ATTR_OP_POLICY attribute which is a nested attr (indexed by op) containing attributes for do and dump policies. When a single op is requested, the CTRL_ATTR_OP_POLICY will be added in the same way, since do and dump policies may differ. v2: - conditionally advertise per-command policies only if there actually is a policy being used for the do/dump and it's present at all Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-03genetlink: factor skb preparation out of ctrl_dumppolicy()Johannes Berg1-6/+19
We'll need this later for the per-op policy index dump. Reviewed-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-03netlink: rework policy dump to support multiple policiesJohannes Berg3-24/+90
Rework the policy dump code a bit to support adding multiple policies to a single dump, in order to e.g. support per-op policies in generic netlink. v2: - move kernel-doc to implementation [Jakub] - squash the first patch to not flip-flop on the prototype [Jakub] - merge netlink_policy_dump_get_policy_idx() with the old get_policy_idx() we already had - rebase without Jakub's patch to have per-op dump Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-03netlink: compare policy more accuratelyJohannes Berg1-4/+8
The maxtype is really an integral part of the policy, and while we haven't gotten into a situation yet where this happens, it seems that some developer might eventually have two places pointing to identical policies, with different maxattr to exclude some attrs in one of the places. Even if not, it's really the right thing to compare both since the two data items fundamentally belong together. v2: - also do the proper comparison in get_policy_idx() Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02genetlink: switch control commands to per-op policiesJakub Kicinski1-3/+11
In preparation for adding a new attribute to CTRL_CMD_GETPOLICY split the policies for getpolicy and getfamily apart. This will cause a slight user-visible change in that dumping the policies will switch from per family to per op, but supposedly sniffer-type applications (which are the main use case for policy dumping thus far) should support both, anyway. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02genetlink: use parsed attrs in dumppolicyJakub Kicinski1-7/+2
Attributes are already parsed based on the policy specified in the family and ready-to-use in info->attrs. No need to call genlmsg_parse() again. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02taskstats: move specifying netlink policy back to opsJakub Kicinski1-36/+10
commit 3b0f31f2b8c9 ("genetlink: make policy common to family") had to work around removal of policy from ops by parsing in the pre_doit callback. Now that policy is back in full ops we can switch again. Set maxattr to actual size of the policies - both commands set GENL_DONT_VALIDATE_STRICT so out of range attributes will be silently ignored, anyway. v2: - remove stale comment Suggested-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02genetlink: bring back per op policyJakub Kicinski2-5/+17
Add policy to the struct genl_ops structure, this time with maxattr, so it can be used properly. Propagate .policy and .maxattr from the family in genl_get_cmd() if needed, this way the rest of the code does not have to worry if the policy is per op or global. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02genetlink: use .start callback for dumppolicyJakub Kicinski1-24/+24
The structure of ctrl_dumppolicy() is clearly split into init and dumping. Move the init to a .start callback for clarity, it's a more idiomatic netlink dump code structure. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02genetlink: add a structure for dump stateJakub Kicinski3-31/+39
Whenever netlink dump uses more than 2 cb->args[] entries code gets hard to read. We're about to add more state to ctrl_dumppolicy() so create a structure. Since the structure is typed and clearly named we can remove the local fam_id variable and use ctx->fam_id directly. v3: - rebase onto explicit free fix v1: - s/nl_policy_dump/netlink_policy_dump_state/ - forward declare struct netlink_policy_dump_state, and move from passing unsigned long to actual pointer type - add build bug on - u16 fam_id - s/args/ctx/ Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02genetlink: move to smaller ops wherever possibleJakub Kicinski32-102/+107
Bulk of the genetlink users can use smaller ops, move them. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02genetlink: add small version of opsJakub Kicinski3-47/+135
We want to add maxattr and policy back to genl_ops, to enable dumping per command policy to user space. This, however, would cause bloat for all the families with global policies. Introduce smaller version of ops (half the size of genl_ops). Translate these smaller ops into a full blown struct before use in the core. v1: - use struct assignment - put a full copy of the op in struct genl_dumpit_info - s/light/small/ Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02genetlink: reorg struct genl_familyJakub Kicinski1-5/+5
There are holes and oversized members in struct genl_family. Before: /* size: 104, cachelines: 2, members: 16 */ After: /* size: 88, cachelines: 2, members: 16 */ The command field in struct genlmsghdr is a u8, so no point in the operation count being 32 bit. Also operation 0 is usually undefined, so we only need 255 entries. netnsok and parallel_ops are only ever initialized to true. We can grow the fields as needed, compiler should warn us if someone tries to assign larger constants. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02dpaa2-eth: add support for devlink parser error drop trapsIoana Ciornei3-1/+385
Add support for the new group of devlink traps - PARSER_ERROR_DROPS. This consists of registering the array of parser error drops supported, controlling their action through the .trap_group_action_set() callback and reporting an erroneous skb received on the error queue appropriately. DPAA2 devices do not support controlling the action of independent parser error traps, thus the .trap_action_set() callback just returns an EOPNOTSUPP while .trap_group_action_set() actually notifies the hardware what it should do with a frame marked as having a header error. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02dpaa2-eth: add basic devlink supportIoana Ciornei4-1/+119
Add basic support in dpaa2-eth for devlink. For the moment, just register the device with devlink, add the corresponding devlink port and implement the .info_get() callback. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02devlink: add .trap_group_action_set() callbackIoana Ciornei2-0/+28
Add a new devlink callback, .trap_group_action_set(), which can be used by device drivers which do not support controlling the action (drop, trap) on each trap but rather on the entire group trap. If this new callback is populated, it will take precedence over the .trap_action_set() callback when the user requests a change of all the traps in a group. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02devlink: add parser error drop packet trapsIoana Ciornei3-0/+139
Add parser error drop packet traps, so that capable device driver could register them with devlink. The new packet trap group holds any drops of packets which were marked by the device as erroneous during header parsing. Add documentation for every added packet trap and packet trap group. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02ionic: add new bad firmware error codeShannon Nelson2-0/+3
If the new firmware image downladed for update is corrupted or is a bad format, the download process will report a status code specifically for that. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02ionic: use lif ident for filter countShannon Nelson1-9/+10
Use the lif's ident information for the uc and mc filter counts rather than the ionic's version, to be sure we're getting the info that is specific to this lif. While we're thinking about it, add some missing error checking where we get the lif's identity information. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02ionic: refill lif identity after fw_upShannon Nelson3-14/+22
After we do a fw upgrade and refill the ionic->ident.dev, we also need to update the other identity info. Since the lif identity needs to be updated each time the ionic identity is refreshed, we can pull it into ionic_identify(). The debugfs entry is moved so that it doesn't cause an error message when the data is refreshed after the fw upgrade. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02ionic: disable all queue napi contexts on timeoutShannon Nelson1-26/+21
Some time ago we short-circuited the queue disables on a timeout error in order to not have to wait on every queue when we already know it will time out. However, this meant that we're not properly stopping all the interrupts and napi contexts. This changes queue disable to always call ionic_qcq_disable() and to give it an argument to know when to not do the adminq request. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02ionic: check qcq ptr in ionic_qcq_disableShannon Nelson1-11/+20
There are a couple of error recovery paths that can come through ionic_qcq_disable() without having set up the qcq, so we need to make sure we have a valid qcq pointer before using it. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02ionic: clear linkcheck bit on alloc failShannon Nelson1-1/+3
Clear our link check requested flag on an allocation error. We end up dropping this link check request, but that should be fine as our watchdog will come back a few seconds later and request it again. Reported-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02ionic: drain the work queueShannon Nelson1-10/+13
Check through our work list for additional items. This normally will only have one item, but occasionally may have another job waiting. There really is no need reschedule ourself here. Reported-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02ionic: contiguous memory for notifyqShannon Nelson1-22/+47
The event notification queue is set up a little differently in the NIC and so the notifyq q and cq descriptor structures need to be contiguous, which got missed in an earlier patch that separated out the q and cq descriptor allocations. That patch was aimed at making the big tx and rx descriptor queue allocations easier to manage - the notifyq is much smaller and doesn't need to be split. This patch simply adds an if/else and slightly different code for the notifyq descriptor allocation. Fixes: ea5a8b09dc3a ("ionic: reduce contiguous memory allocation requirement") Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02s390/ctcm: remove orphaned function declarationsVasily Gorbik2-2/+0
drivers/s390/net/ctcm_fsms.h: fsm_action_nop - only declaration left after commit 04885948b101 ("ctc: removal of the old ctc driver") drivers/s390/net/ctcm_mpc.h: ctcmpc_open - only declaration left after commit 293d984f0e36 ("ctcm: infrastructure for replaced ctc driver") Reviewed-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02s390/qeth: static checker cleanupsJulian Wiedmann5-23/+22
- Add/delete some blanks, white spaces and braces. - Fix misindentations. - Adjust a deprecated header include, and htons() conversion. - Remove extra 'return' statements. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02s390/qeth: use netdev_name()Julian Wiedmann5-36/+35
Replace our custom version of netdev_name(). Once we started to allocate the netdev at probe time with commit d3d1b205e89f ("s390/qeth: allocate netdevice early"), this stopped working as intended anyway. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02s390/qeth: constify the disciplinesJulian Wiedmann3-5/+5
The discipline struct is a fixed group of function pointers. So declare the L2 and L3 disciplines as constant. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02s390/qeth: allow configuration of TX queues for OSA devicesJulian Wiedmann6-20/+53
For OSA devices that are _not_ configured in prio-queue mode, give users the option of selecting the number of active TX queues. This requires setting up the HW queues with a reasonable default QoS value in the QIB's PQUE parm area. As with the other device types, we bring up the device with a minimal number of TX queues for compatibility reasons. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02s390/qeth: de-magic the QIB parm areaJulian Wiedmann2-35/+41
Use a proper struct, and only program the QIB extensions for devices where they are supported. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02s390/qeth: keep track of wanted TX queuesJulian Wiedmann5-54/+61
When re-initializing a device, we can hit a situation where qeth_osa_set_output_queues() detects that it supports more or less HW TX queues than before. Right now we adjust dev->real_num_tx_queues from right there, but 1. it's getting more & more complicated to cover all cases, and 2. we can't re-enable the actually expected number of TX queues later because we lost the needed information. So keep track of the wanted TX queues (on initial setup, and whenever its changed via .set_channels), and later use that information when re-enabling the netdevice. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02selftests: ocelot: add some example VCAP IS1, IS2 and ES0 tc offloadsVladimir Oltean3-0/+317
Provide an example script which can be used as a skeleton for offloading TCAM rules in the Ocelot switches. Not all actions are demoed, mostly because of difficulty to automate this from a single board. For example, policing. We can set up an iperf3 UDP server and client and measure throughput at destination. But at least with DSA setups, network namespacing the individual ports is not possible because all switch ports are handled by the same DSA master. And we cannot assume that the target platform (an embedded board) has 2 other non-switch generator ports, we need to work with the generator ports as switch ports (this is the reason why mausezahn is used, and not IP traffic like ping). When somebody has an idea how to test policing, that can be added to this test. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-02net: mscc: ocelot: offload redirect action to VCAP IS2Vladimir Oltean1-3/+25
Via the OCELOT_MASK_MODE_REDIRECT flag put in the IS2 action vector, it is possible to replace previous forwarding decisions with the port mask installed in this rule. I have studied Table 54 "MASK_MODE and PORT_MASK Combinations" from the VSC7514 documentation and it appears to behave sanely when this rule is installed in either lookup 0 or 1. Namely, a redirect in lookup 1 will overwrite the forwarding decision taken by any entry in lookup 0. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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