- 24 Sep, 2020 20 commits
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Florian Fainelli authored
Update the B53 driver to support VLANs while not filtering. This requires us to enable VLAN globally within the switch upon driver initial configuration (dev->vlan_enabled). We also need to remove the code that dealt with PVID re-configuration in b53_vlan_filtering() since that function worked under the assumption that it would only be called to make a bridge VLAN filtering, or not filtering, and we would attempt to move the port's PVID accordingly. Now that VLANs are programmed all the time, even in the case of a non-VLAN filtering bridge, we would be programming a default_pvid for the bridged switch ports. We need the DSA receive path to pop the VLAN tag if it is the bridge's default_pvid because the CPU port is always programmed tagged in the programmed VLANs. In order to do so we utilize the dsa_untag_bridge_pvid() helper introduced in the commit before within net/dsa/tag_brcm.c. Acked-by:
Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Vladimir Oltean authored
Currently the bridge untags VLANs present in its VLAN groups in __allowed_ingress() only when VLAN filtering is enabled. But when a skb is seen on the RX path as tagged with the bridge's pvid, and that bridge has vlan_filtering=0, and there isn't any 8021q upper with that VLAN either, then we have a problem. The bridge will not untag it (since it is supposed to remain VLAN-unaware), and pvid-tagged communication will be broken. There are 2 situations where we can end up like that: 1. When installing a pvid in egress-tagged mode, like this: ip link add dev br0 type bridge vlan_filtering 0 ip link set swp0 master br0 bridge vlan del dev swp0 vid 1 bridge vlan add dev swp0 vid 1 pvid This happens because DSA configures the VLAN membership of the CPU port using the same flags as swp0 (in this case "pvid and not untagged"), in an attempt to copy the frame as-is from ingress to the CPU. However, in this case, the packet may arrive untagged on ingress, it will be pvid-tagged by the ingress port, and will be sent as egress-tagged towards the CPU. Otherwise stated, the CPU will see a VLAN tag where there was none to speak of on ingress. When vlan_filtering is 1, this is not a problem, as stated in the first paragraph, because __allowed_ingress() will pop it. But currently, when vlan_filtering is 0 and we have such a VLAN configuration, we need an 8021q upper (br0.1) to be able to ping over that VLAN, which is not symmetrical with the vlan_filtering=1 case, and therefore, confusing for users. Basically what DSA attempts to do is simply an approximation: try to copy the skb with (or without) the same VLAN all the way up to the CPU. But DSA drivers treat CPU port VLAN membership in various ways (which is a good segue into situation 2). And some of those drivers simply tell the CPU port to copy the frame unmodified, which is the golden standard when it comes to VLAN processing (therefore, any driver which can configure the hardware to do that, should do that, and discard the VLAN flags requested by DSA on the CPU port). 2. Some DSA drivers always configure the CPU port as egress-tagged, in an attempt to recover the classified VLAN from the skb. These drivers cannot work at all with untagged traffic when bridged in vlan_filtering=0 mode. And they can't go for the easy "just keep the pvid as egress-untagged towards the CPU" route, because each front port can have its own pvid, and that might require conflicting VLAN membership settings on the CPU port (swp1 is pvid for VID 1 and egress-tagged for VID 2; swp2 is egress-taggeed for VID 1 and pvid for VID 2; with this simplistic approach, the CPU port, which is really a separate hardware entity and has its own VLAN membership settings, would end up being egress-untagged in both VID 1 and VID 2, therefore losing the VLAN tags of ingress traffic). So the only thing we can do is to create a helper function for resolving the problematic case (that is, a function which untags the bridge pvid when that is in vlan_filtering=0 mode), which taggers in need should call. It isn't called from the generic DSA receive path because there are drivers that fall neither in the first nor second category. Signed-off-by:
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David S. Miller authored
Andrew Lunn says: ==================== PHY subsystem kernel doc The first patches fix existing warnings in the kerneldoc for the PHY subsystem, and then the 2nd extend the kernel documentation for the major structures and functions in the PHY subsystem. v2: Drop the other fixes which have already been merged. s/phy/PHY/g TBI TypOs ==================== Signed-off-by: -
Andrew Lunn authored
Add kerneldoc for the core PHY data structures, a few inline functions and exported functions which are not already documented. v2 Typos g/phy/PHY/s Signed-off-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
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Andrew Lunn authored
Add missing parameter documentation, or fixup wrong parameter names. Reviewed-by:
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David S. Miller authored
Florian Fainelli says: ==================== net: dsa: bcm_sf2: Additional DT changes This patch series includes some additional changes to the bcm_sf2 in order to support the Device Tree firmwares provided on such platforms. ==================== Signed-off-by: -
Florian Fainelli authored
We need to include MDIO address 0, which is how our Device Tree blobs indicate where to find the external BCM53125 switches. Signed-off-by:
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Florian Fainelli authored
While the switch driver is written such that port 5 or 8 could be CPU ports, the use case on Broadcom STB chips is to use port 8 exclusively. The platform firmware does make port 5 comply to a proper DSA CPU port binding by specifiying an "ethernet" phandle. This is undesirable for now until we have an user-space configuration mechanism (such as devlink) which could support dynamically changing the port flavor at run time. Signed-off-by:
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David S. Miller authored
George Cherian says: ==================== octeontx2: Add support for VLAN based flow distribution This series add support for VLAN based flow distribution for octeontx2 netdev driver. This adds support for configuring the same via ethtool. Following tests have been done. - Multi VLAN flow with same SD - Multi VLAN flow with same SDFN - Single VLAN flow with multi SD - Single VLAN flow with multi SDFN All tests done for udp/tcp both v4 and v6 ==================== Reviewed-by:
Jakub Kicinski <kuba@kernel.org> Signed-off-by:
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George Cherian authored
Add support to control rx-flow-hash based on VLAN. By default VLAN plus 4-tuple based hashing is enabled. Changes can be done runtime using ethtool To enable 2-tuple plus VLAN based flow distribution # ethtool -N <intf> rx-flow-hash <prot> sdv To enable 4-tuple plus VLAN based flow distribution # ethtool -N <intf> rx-flow-hash <prot> sdfnv Signed-off-by:
George Cherian <george.cherian@marvell.com> Signed-off-by:
Sunil Goutham <sgoutham@marvell.com> Signed-off-by:
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George Cherian authored
Added support for PF/VF drivers to choose RSS flow key algorithm with VLAN tag included in hashing input data. Only CTAG is considered. Signed-off-by:
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Mauro Carvalho Chehab authored
kernel-doc expects the function prototype to be just after the kernel-doc markup, as otherwise it will get it all wrong: ./net/core/dev.c:10036: warning: Excess function parameter 'dev' description in 'WAIT_REFS_MIN_MSECS' Fixes: 0e4be9e5 ("net: use exponential backoff in netdev_wait_allrefs") Signed-off-by:
Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Reviewed-by:
Francesco Ruggeri <fruggeri@arista.com> Signed-off-by:
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David S. Miller authored
Robert Marko says: ==================== net: mdio-ipq4019: add Clause 45 support This patch series adds support for Clause 45 to the driver. While at it also change some defines to upper case to match rest of the driver. Changes since v4: * Rebase onto net-next.git Changes since v1: * Drop clock patches, these need further investigation and no user for non default configuration has been found ==================== Signed-off-by: -
Robert Marko authored
While up-streaming the IPQ4019 driver it was thought that the controller had no Clause 45 support, but it actually does and its activated by writing a bit to the mode register. So lets add it as newer SoC-s use the same controller and Clause 45 compliant PHY-s. Signed-off-by:
Robert Marko <robert.marko@sartura.hr> Cc: Luka Perkov <luka.perkov@sartura.hr> Reviewed-by:
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Robert Marko authored
In the commit adding the IPQ4019 MDIO driver, defines for timeout and sleep partially used lower case. Lets change it to upper case in line with the rest of driver defines. Signed-off-by:
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David S. Miller authored
Subbaraya Sundeep says: ==================== Introduce mbox tracepoints for Octeontx2 This patchset adds tracepoints support for mailbox. In Octeontx2, PFs and VFs need to communicate with AF for allocating and freeing resources. Once all the configuration is done by AF for a PF/VF then packet I/O can happen on PF/VF queues. When an interface is brought up many mailbox messages are sent to AF for initializing queues. Say a VF is brought up then each message is sent to PF and PF forwards to AF and response also traverses from AF to PF and then VF. To aid debugging, tracepoints are added at places where messages are allocated, sent and message interrupts. Below is the trace of one of the messages from VF to AF and AF response back to VF: ~ # echo 1 > /sys/kernel/tracing/events/rvu/enable ~ # ifconfig eth20 up [ 279.379559] eth20 NIC Link is UP 10000 Mbps Full duplex ~ # cat /sys/kernel/tracing/trace ifconfig-171 [000] .... 275.753345: otx2_msg_alloc: [0002:02:00.1] msg:(0x400) size:40 ifconfig-171 [000] ...1 275.753347: otx2_msg_send: [0002:02:00.1] sent 1 msg(s) of size:48 <idle>-0 [001] dNh1 275.753356: otx2_msg_interrupt: [0002:02:00.0] mbox interrupt VF(s) to PF (0x1) kworker/u9:1-90 [001] ...1 275.753364: otx2_msg_send: [0002:02:00.0] sent 1 msg(s) of size:48 kworker/u9:1-90 [001] d.h. 275.753367: otx2_msg_interrupt: [0002:01:00.0] mbox interrupt PF(s) to AF (0x2) kworker/u9:2-167 [002] .... 275.753535: otx2_msg_process: [0002:01:00.0] msg:(0x400) error:0 kworker/u9:2-167 [002] ...1 275.753537: otx2_msg_send: [0002:01:00.0] sent 1 msg(s) of size:32 <idle>-0 [003] d.h1 275.753543: otx2_msg_interrupt: [0002:02:00.0] mbox interrupt AF to PF (0x1) <idle>-0 [001] d.h2 275.754376: otx2_msg_interrupt: [0002:02:00.1] mbox interrupt PF to VF (0x1) v3 changes: Removed EXPORT_TRACEPOINT_SYMBOLS of otx2_msg_send and otx2_msg_check since they are called locally only v2 changes: Removed otx2_msg_err tracepoint since it is similar to devlink_hwerr and it will be used instead when devlink supported is added. ==================== Signed-off-by: -
Subbaraya Sundeep authored
With tracepoints support present in the mailbox code this patch adds tracepoints in PF and VF drivers at places where mailbox messages are allocated, sent and at message interrupts. Signed-off-by:
Subbaraya Sundeep <sbhatta@marvell.com> Signed-off-by:
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Subbaraya Sundeep authored
Added tracepoints in mailbox code so that the mailbox operations like message allocation, sending message and message interrupts are traced. Also the mailbox errors occurred like timeout or wrong responses are traced. These will help in debugging mailbox issues. Here's an example output showing one of the mailbox messages sent by PF to AF and AF responding to it: ~# mount -t tracefs none /sys/kernel/tracing/ ~# echo 1 > /sys/kernel/tracing/events/rvu/enable ~# ifconfig eth0 up ~# cat /sys/kernel/tracing/trace ~# cat /sys/kernel/tracing/trace tracer: nop _-----=> irqs-off / _----=> need-resched | / _---=> hardirq/softirq || / _--=> preempt-depth ||| / delay TASK-PID CPU# |||| TIMESTAMP FUNCTION | | | |||| | | ifconfig-2382 [002] .... 756.161892: otx2_msg_alloc: [0002:02:00.0] msg:(0x400) size:40 ifconfig-2382 [002] ...1 756.161895: otx2_msg_send: [0002:02:00.0] sent 1 msg(s) of size:48 <idle>-0 [000] d.h1 756.161902: otx2_msg_interrupt: [0002:01:00.0] mbox interrupt PF(s) to AF (0x2) kworker/u49:0-1165 [000] .... 756.162049: otx2_msg_process: [0002:01:00.0] msg:(0x400) error:0 kworker/u49:0-1165 [000] ...1 756.162051: otx2_msg_send: [0002:01:00.0] sent 1 msg(s) of size:32 kworker/u49:0-1165 [000] d.h. 756.162056: otx2_msg_interrupt: [0002:02:00.0] mbox interrupt AF to PF (0x1) Signed-off-by: -
Barry Song authored
The comment "holders of db->lock must always block IRQs" and related code to do irqsave and irqrestore don't make sense since we are in a IRQ-disabled hardIRQ context. Cc: Maxime Ripard <mripard@kernel.org> Cc: Chen-Yu Tsai <wens@csie.org> Signed-off-by:
Barry Song <song.bao.hua@hisilicon.com> Acked-by:
Maxime Ripard <mripard@kernel.org> Signed-off-by:
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Rikard Falkeborn authored
A number of static variables were not modified. Make them const to allow the compiler to put them in read-only memory. In order to do so, constify a couple of input pointers as well as some local pointers. This moves about 35Kb to read-only memory as seen by the output of the size command. Before: text data bss dec hex filename 404938 111534 640 517112 7e3f8 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge.ko After: text data bss dec hex filename 439499 76974 640 517113 7e3f9 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge.ko Signed-off-by:
Rikard Falkeborn <rikard.falkeborn@gmail.com> Signed-off-by:
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- 23 Sep, 2020 20 commits
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David S. Miller authored
Nikolay Aleksandrov says: ==================== net: bridge: mcast: IGMPv3/MLDv2 fast-path (part 2) This is the second part of the IGMPv3/MLDv2 support which adds support for the fast-path. In order to be able to handle source entries we add mdb support for S,G entries (i.e. we add source address support to br_ip), that requires to extend the current mdb netlink API, fortunately we just add another attribute which will contain nested future mdb attributes, then we use it to add support for S,G user- add, del and dump. The lookup sequence is simple: when IGMPv3/MLDv2 are enabled do the S,G lookup first and if it fails fallback to *,G. The more complex part is when we begin handling source lists and auto-installing S,G entries and *,G filter mode transitions. We have the following cases: 1) *,G INCLUDE -> EXCLUDE transition: we need to install the port in all of *,G's installed S,G entries for proper replication (except the ones explicitly blocked), this is also necessary when adding a new *,G EXCLUDE port group 2) *,G EXCLUDE -> INCLUDE transition: we need to remove the port from all of *,G's installed S,G entries, this is also necessary when removing a *,G port group 3) New S,G port entry: we need to install all current *,G EXCLUDE ports 4) Remove S,G port entry: if all other port groups were auto-installed we can safely remove them and delete the whole S,G entry Currently we compute these operations from the available ports, their source lists and their filter mode. In the future we can extend the port group structure and reduce the running time of these ops. Also one current limitation is that host-joined S,G entries are not supported. I.e. one cannot add "dev bridge port bridge" mdb S,G entries. The host join is currently considered an EXCLUDE {} join, so it's reflected in all of *,G's installed S,G entries. If an S,G,port entry is added as temporary then the kernel can take it over if a source shows up from a report, permanent entries are skipped. In order to properly handle blocked sources we add a new port group blocked flag to avoid forwarding to that port group in the S,G. Finally when forwarding we use the port group filter mode (if it's INCLUDE and the port group is from a *,G then don't replicate to it, respectively if it's EXCLUDE then forward) and the blocked flag (obviously if it's set - skip that port unless it's a router port) to decide if the port should be skipped. Another limitation is that we can't do some of the above transitions without small traffic drop while installing/removing entries. That will be taken care of when we add atomic swap of port replication lists later. Patch break down: patches 1-3: prepare the mdb code for better extack support which is used in future patches to return a more meaningful error patches 4-6: add the source address field to struct br_ip, and do minor cleanups around it patches 7-8: extend the mdb netlink API so we can send new mdb attributes and uses the new API for S,G entry add/del/dump support patch 9: takes care of S,G entries when doing a lookup (first S,G then *,G lookup) patch 10: adds a new port group field and attribute for origin protocol we use the already available RTPROT_ definitions, currently user-space entries are added as RTPROT_STATIC and kernel entries are added as RTPROT_KERNEL, we may allow user-space to set custom values later (e.g. for FRR, clag) patch 11: adds an internal S,G,port rhashtable to speed up filter mode transitions patch 12: initial automatic install of S,G entries based on port groups' source lists patch 13: handles port group modes on transitions or when new port group entries are added patch 14: self-explanatory - adds support for blocked port group entries needed to stop forwarding to particular S,G,port entries patch 15: handles host-join/leave state changes, treats host-joins as EXCLUDE {} groups (reflected in all *,G's S,G entries) patch 16: finally adds the fast-path filter mode and block flag support Here're the sets that will come next (in order): - iproute2 support for IGMPv3/MLDv2 - selftests for all mode transitions and group flags - explicit host tracking for proper fast-leave support - atomic port replication lists (these are also needed for broadcast forwarding optimizations) - mode transition optimization and removal of open-coded sorted lists Not implemented yet: - Host IGMPv3/MLDv2 filter support (currently we handle only join/leave as before) - Proper other querier source timer and value updates - IGMPv3/v2 MLDv2/v1 compat (I have a few rough patches for this one) v2: fix build with CONFIG_BATMAN_ADV_MCAST in patch 6 ==================== Signed-off-by: -
Nikolay Aleksandrov authored
We need to avoid forwarding to ports in MCAST_INCLUDE filter mode when the mdst entry is a *,G or when the port has the blocked flag. Signed-off-by:
Nikolay Aleksandrov <nikolay@nvidia.com> Signed-off-by:
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Nikolay Aleksandrov authored
Since host joins are considered as EXCLUDE {} joins we need to reflect that in all of *,G ports' S,G entries. Since the S,Gs can have host_joined == true only set automatically we can safely set it to false when removing all automatically added entries upon S,G delete. Signed-off-by: -
Nikolay Aleksandrov authored
When excluding S,G entries we need a way to block a particular S,G,port. The new port group flag is managed based on the source's timer as per RFCs 3376 and 3810. When a source expires and its port group is in EXCLUDE mode, it will be blocked. Signed-off-by:
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Nikolay Aleksandrov authored
We need to handle group filter mode transitions and initial state. To change a port group's INCLUDE -> EXCLUDE mode (or when we have added a new port group in EXCLUDE mode) we need to add that port to all of *,G ports' S,G entries for proper replication. When the EXCLUDE state is changed from IGMPv3 report, br_multicast_fwd_filter_exclude() must be called after the source list processing because the assumption is that all of the group's S,G entries will be created before transitioning to EXCLUDE mode, i.e. most importantly its blocked entries will already be added so it will not get automatically added to them. The transition EXCLUDE -> INCLUDE happens only when a port group timer expires, it requires us to remove that port from all of *,G ports' S,G entries where it was automatically added previously. Finally when we are adding a new S,G entry we must add all of *,G's EXCLUDE ports to it. In order to distinguish automatically added *,G EXCLUDE ports we have a new port group flag - MDB_PG_FLAGS_STAR_EXCL. Signed-off-by:
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Nikolay Aleksandrov authored
This patch adds support for automatic install of S,G mdb entries based on the port group's source list and the source entry's timer. Once installed the S,G will be used when forwarding packets if the approprate multicast/mld versions are set. A new source flag called BR_SGRP_F_INSTALLED denotes if the source has a forwarding mdb entry installed. Signed-off-by:
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Nikolay Aleksandrov authored
To speedup S,G forward handling we need to be able to quickly find out if a port is a member of an S,G group. To do that add a global S,G port rhashtable with key: source addr, group addr, protocol, vid (all br_ip fields) and port pointer. Signed-off-by:
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Nikolay Aleksandrov authored
We need to be able to differentiate between pg entries created by user-space and the kernel when we start generating S,G entries for IGMPv3/MLDv2's fast path. User-space entries are created by default as RTPROT_STATIC and the kernel entries are RTPROT_KERNEL. Later we can allow user-space to provide the entry rt_protocol so we can differentiate between who added the entries specifically (e.g. clag, admin, frr etc). Signed-off-by:
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Nikolay Aleksandrov authored
If (S,G) entries are enabled (igmpv3/mldv2) then look them up first. If there isn't a present (S,G) entry then try to find (*,G). Signed-off-by:
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Nikolay Aleksandrov authored
Add new mdb attributes (MDBE_ATTR_SOURCE for setting, MDBA_MDB_EATTR_SOURCE for dumping) to allow add/del and dump of mdb entries with a source address (S,G). New S,G entries are created with filter mode of MCAST_INCLUDE. The same attributes are used for IPv4 and IPv6, they're validated and parsed based on their protocol. S,G host joined entries which are added by user are not allowed yet. Signed-off-by:
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Nikolay Aleksandrov authored
Since the MDB add/del code expects an exact struct br_mdb_entry we can't really add any extensions, thus add a new nested attribute at the level of MDBA_SET_ENTRY called MDBA_SET_ENTRY_ATTRS which will be used to pass all new options via netlink attributes. This patch doesn't change anything functionally since the new attribute is not used yet, only parsed. Signed-off-by:
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Nikolay Aleksandrov authored
Since now we have src in br_ip, u no longer makes sense so rename it to dst. No functional changes. v2: fix build with CONFIG_BATMAN_ADV_MCAST CC: Marek Lindner <mareklindner@neomailbox.ch> CC: Simon Wunderlich <sw@simonwunderlich.de> CC: Antonio Quartulli <a@unstable.cc> CC: Sven Eckelmann <sven@narfation.org> CC: b.a.t.m.a.n@lists.open-mesh.org Signed-off-by:
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Nikolay Aleksandrov authored
Now that we have src and dst in br_ip it is logical to use the src field for the cases where we need to work with a source address such as querier source address and group source address. Signed-off-by:
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Nikolay Aleksandrov authored
Add a new src field to struct br_ip which will be used to lookup S, G entries. When SSM option is added we will enable full br_ip lookups. Signed-off-by:
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Nikolay Aleksandrov authored
Pass and use extack all the way down to br_mdb_add_group(). Signed-off-by:
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Nikolay Aleksandrov authored
To avoid doing duplicate device checks and searches (the same were done in br_mdb_add and __br_mdb_add) pass the already found port to __br_mdb_add and pull the bridge's netif_running and enabled multicast checks to br_mdb_add. This would also simplify the future extack errors. Signed-off-by:
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Nikolay Aleksandrov authored
We can drop the pr_info() calls and just use extack to return a meaningful error to user-space when br_mdb_parse() fails. Signed-off-by:
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Zheng Yongjun authored
Fixes gcc '-Wunused-but-set-variable' warning: drivers/net/ethernet/realtek/8139cp.c: In function cp_tx_timeout: drivers/net/ethernet/realtek/8139cp.c:1242:6: warning: variable ‘rc’ set but not used [-Wunused-but-set-variable] `rc` is never used, so remove it. Signed-off-by:
Zheng Yongjun <zhengyongjun3@huawei.com> Signed-off-by:
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Luo bin authored
Fix the warnings about function header comments when building hinic driver with "W=1" option. Signed-off-by:
Luo bin <luobin9@huawei.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextDavid S. Miller authored
Alexei Starovoitov says: ==================== pull-request: bpf-next 2020-09-23 The following pull-request contains BPF updates for your *net-next* tree. We've added 95 non-merge commits during the last 22 day(s) which contain a total of 124 files changed, 4211 insertions(+), 2040 deletions(-). The main changes are: 1) Full multi function support in libbpf, from Andrii. 2) Refactoring of function argument checks, from Lorenz. 3) Make bpf_tail_call compatible with functions (subprograms), from Maciej. 4) Program metadata support, from YiFei. 5) bpf iterator optimizations, from Yonghong. ==================== Signed-off-by:
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