Commit Graph

1054908 Commits

Author SHA1 Message Date
David S. Miller
d4a07dc5ac Merge branch 'SMC-tracepoints'
Tony Lu says:

====================
Tracepoints for SMC

This patch set introduces tracepoints for SMC, including the tracepoints
basic code. The tracepoitns would help us to track SMC's behaviors by
automatic tools, or other BPF tools, and zero overhead if not enabled.

Compared with kprobe and other dymatic tools, the tracepoints are
considered as stable API, and less overhead for tracing with easy-to-use
API.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:39:14 +00:00
Tony Lu
a3a0e81b6f net/smc: Introduce tracepoint for smcr link down
SMC-R link down event is important to help us find links' issues, we
should track this event, especially in the single nic mode, which means
upper layer connection would be shut down. Then find out the direct
link-down reason in time, not only increased the counter, also the
location of the code who triggered this event.

Signed-off-by: Tony Lu <tonylu@linux.alibaba.com>
Reviewed-by: Wen Gu <guwen@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:39:14 +00:00
Tony Lu
aff3083f10 net/smc: Introduce tracepoints for tx and rx msg
This introduce two tracepoints for smc tx and rx msg to help us
diagnosis issues of data path. These two tracepoitns don't cover the
path of CORK or MSG_MORE in tx, just the top half of data path.

Signed-off-by: Tony Lu <tonylu@linux.alibaba.com>
Reviewed-by: Wen Gu <guwen@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:39:14 +00:00
Tony Lu
4826260868 net/smc: Introduce tracepoint for fallback
This introduces tracepoint for smc fallback to TCP, so that we can track
which connection and why it fallbacks, and map the clcsocks' pointer with
/proc/net/tcp to find more details about TCP connections. Compared with
kprobe or other dynamic tracing, tracepoints are stable and easy to use.

Signed-off-by: Tony Lu <tonylu@linux.alibaba.com>
Reviewed-by: Wen Gu <guwen@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:39:14 +00:00
David S. Miller
6008889121 Merge branch 'amt-driver'
Taehee Yoo says:

====================
amt: add initial driver for Automatic Multicast Tunneling (AMT)

This is an implementation of AMT(Automatic Multicast Tunneling), RFC 7450.
https://datatracker.ietf.org/doc/html/rfc7450

This implementation supports IGMPv2, IGMPv3, MLDv1, MLDv2, and IPv4
underlay.

 Summary of RFC 7450
The purpose of this protocol is to provide multicast tunneling.
The main use-case of this protocol is to provide delivery multicast
traffic from a multicast-enabled network to sites that lack multicast
connectivity to the source network.
There are two roles in AMT protocol, Gateway, and Relay.
The main purpose of Gateway mode is to forward multicast listening
information(IGMP, MLD) to the source.
The main purpose of Relay mode is to forward multicast data to listeners.
These multicast traffics(IGMP, MLD, multicast data packets) are tunneled.

Listeners are located behind Gateway endpoint.
But gateway itself can be a listener too.
Senders are located behind Relay endpoint.

    ___________       _________       _______       ________
   |           |     |         |     |       |     |        |
   | Listeners <-----> Gateway <-----> Relay <-----> Source |
   |___________|     |_________|     |_______|     |________|
      IGMP/MLD---------(encap)----------->
         <-------------(decap)--------(encap)------Multicast Data

 Usage of AMT interface
1. Create gateway interface
ip link add amtg type amt mode gateway local 10.0.0.1 discovery 10.0.0.2 \
dev gw1_rt gateway_port 2268 relay_port 2268

2. Create Relay interface
ip link add amtr type amt mode relay local 10.0.0.2 dev relay_rt \
relay_port 2268 max_tunnels 4

v1 -> v2:
 - Eliminate sparse warnings.
   - Use bool type instead of __be16 for identifying v4/v6 protocol.

v2 -> v3:
 - Fix compile warning due to unsed variable.
 - Add missing spinlock comment.
 - Update help message of amt in Kconfig.

v3 -> v4:
 - Split patch.
 - Use CHECKSUM_NONE instead of CHECKSUM_UNNECESSARY.
 - Fix compile error.

v4 -> v5:
 - Remove unnecessary rcu_read_lock().
 - Remove unnecessary amt_change_mtu().
 - Change netlink error message.
 - Add validation for IFLA_AMT_LOCAL_IP and IFLA_AMT_DISCOVERY_IP.
 - Add comments in amt.h.
 - Add missing dev_put() in error path of amt_newlink().
 - Fix typo.
 - Add BUILD_BUG_ON() in amt_smb_cb().
 - Use macro instead of magic values.
 - Use kzalloc() instead of kmalloc().
 - Add selftest script.

v5 -> v6:
 - Reset remote_ip in amt_dev_stop().

v6 -> v7:
 - Fix compile error.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:36:09 +00:00
Taehee Yoo
c08e8baea7 selftests: add amt interface selftest script
This is selftest script for amt interface.
This script includes basic forwarding scenarion and torture scenario.

Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:36:09 +00:00
Taehee Yoo
b75f7095d4 amt: add mld report message handler
In the previous patch, igmp report handler was added.
That handler can be used for mld too.
So, it uses that common code to parse mld report message.

Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:36:09 +00:00
Taehee Yoo
bc54e49c14 amt: add multicast(IGMP) report message handler
amt 'Relay' interface manages multicast groups(igmp/mld) and sources.
In order to manage, it should have the function to parse igmp/mld
report messages. So, this adds the logic for parsing igmp report messages
and saves them on their own data structure.

   struct amt_group_node means one group(igmp/mld).
   struct amt_source_node means one source.

The same source can't exist in the same group.
The same group can exist in the same tunnel because it manages
the host address too.

The group information is used when forwarding multicast data.
If there are no groups in the specific tunnel, Relay doesn't forward it.

Although Relay manages sources, it doesn't support the source filtering
feature. Because the reason to manage sources is just that in order
to manage group more correctly.

In the next patch, MLD part will be added.

Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:36:08 +00:00
Taehee Yoo
cbc21dc1cf amt: add data plane of amt interface
Before forwarding multicast traffic, the amt interface establishes between
gateway and relay. In order to establish, amt defined some message type
and those message flow looks like the below.

                      Gateway                  Relay
                      -------                  -----
                         :        Request        :
                     [1] |           N           |
                         |---------------------->|
                         |    Membership Query   | [2]
                         |    N,MAC,gADDR,gPORT  |
                         |<======================|
                     [3] |   Membership Update   |
                         |   ({G:INCLUDE({S})})  |
                         |======================>|
                         |                       |
    ---------------------:-----------------------:---------------------
   |                     |                       |                     |
   |                     |    *Multicast Data    |  *IP Packet(S,G)    |
   |                     |      gADDR,gPORT      |<-----------------() |
   |    *IP Packet(S,G)  |<======================|                     |
   | ()<-----------------|                       |                     |
   |                     |                       |                     |
    ---------------------:-----------------------:---------------------
                         ~                       ~
                         ~        Request        ~
                     [4] |           N'          |
                         |---------------------->|
                         |   Membership Query    | [5]
                         | N',MAC',gADDR',gPORT' |
                         |<======================|
                     [6] |                       |
                         |       Teardown        |
                         |   N,MAC,gADDR,gPORT   |
                         |---------------------->|
                         |                       | [7]
                         |   Membership Update   |
                         |  ({G:INCLUDE({S})})   |
                         |======================>|
                         |                       |
    ---------------------:-----------------------:---------------------
   |                     |                       |                     |
   |                     |    *Multicast Data    |  *IP Packet(S,G)    |
   |                     |     gADDR',gPORT'     |<-----------------() |
   |    *IP Packet (S,G) |<======================|                     |
   | ()<-----------------|                       |                     |
   |                     |                       |                     |
    ---------------------:-----------------------:---------------------
                         |                       |
                         :                       :

1. Discovery
 - Sent by Gateway to Relay
 - To find Relay unique ip address
2. Advertisement
 - Sent by Relay to Gateway
 - Contains the unique IP address
3. Request
 - Sent by Gateway to Relay
 - Solicit to receive 'Query' message.
4. Query
 - Sent by Relay to Gateway
 - Contains General Query message.
5. Update
 - Sent by  Gateway to Relay
 - Contains report message.
6. Multicast Data
 - Sent by Relay to Gateway
 - encapsulated multicast traffic.
7. Teardown
 - Not supported at this time.

Except for the Teardown message, it supports all messages.

In the next patch, IGMP/MLD logic will be added.

Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:36:08 +00:00
Taehee Yoo
b9022b53ad amt: add control plane of amt interface
It adds definitions and control plane code for AMT.
this is very similar to udp tunneling interfaces such as gtp, vxlan, etc.
In the next patch, data plane code will be added.

Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:36:08 +00:00
David S. Miller
741948ff60 Merge branch 'netdevsim-device-and-bus'
Jakub Kicinski says:

====================
netdevsim: improve separation between device and bus

VF config falls strangely in between device and bus
responsibilities today. Because of this bus.c sticks fingers
directly into struct nsim_dev and we look at nsim_bus_dev
in many more places than necessary.

Make bus.c contain pure interface code, and move
the particulars of the logic (which touch on eswitch,
devlink reloads etc) to dev.c. Rename the functions
at the boundary of the interface to make the separation
clearer.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:29:41 +00:00
Jakub Kicinski
a66f64b808 netdevsim: rename 'driver' entry points
Rename functions serving as driver entry points
from nsim_dev_... to nsim_drv_... this makes the
API boundary between bus and dev clearer.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:29:41 +00:00
Jakub Kicinski
a3353ec325 netdevsim: move max vf config to dev
max_vfs is a strange little beast because the file
hangs off of nsim's debugfs, but it configures a field
in the bus device. Move it to dev.c, let's look at it
as if the device driver was imposing VF limit based
on FW info (like pci_sriov_set_totalvfs()).

Again, when moving refactor the function not to hold
the vfs lock pointlessly while parsing the input.
Wrap the access from the read side in READ_ONCE()
to appease concurrency checkers. Do not check if
return value from snprintf() is negative...

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:29:41 +00:00
Jakub Kicinski
1c401078bc netdevsim: move details of vf config to dev
Since "eswitch" configuration was added bus.c contains
a lot of device details which really belong to dev.c.

Restructure the code while moving it.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:29:41 +00:00
Jakub Kicinski
5e388f3dc3 netdevsim: move vfconfig to nsim_dev
When netdevsim got split into the faux bus vfconfig ended
up in the bus device (think pci_dev) which is strange because
it contains very networky not to say netdevy information.
Move it to nsim_dev, which is the driver "priv" structure
for the device.

To make sure we don't race with probe/remove take
the device lock (much like PCI).

While at it remove the NULL-checking of vfconfigs.
It appears to be pointless.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:29:41 +00:00
Jakub Kicinski
26c37d89f6 netdevsim: take rtnl_lock when assigning num_vfs
Legacy VF NDOs look at num_vfs and then based on that
index into vfconfig. If we don't rtnl_lock() num_vfs
may get set to 0 and vfconfig freed/replaced while
the NDO is running.

We don't need to protect replacing vfconfig since it's
only done when num_vfs is 0.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:29:41 +00:00
David S. Miller
1adc58ea23 Merge branch 'devlink-locking'
Jakub Kicinski says:

====================
improve ethtool/rtnl vs devlink locking

During ethtool netlink development we decided to move some of
the commmands to devlink. Since we don't want drivers to implement
both devlink and ethtool version of the commands ethtool ioctl
falls back to calling devlink. Unfortunately devlink locks must
be taken before rtnl_lock. This results in a questionable
dev_hold() / rtnl_unlock() / devlink / rtnl_lock() / dev_put()
pattern.

This method "works" but it working depends on drivers in question
not doing much in ethtool_ops->begin / complete, and on the netdev
not having needs_free_netdev set.

Since commit 437ebfd90a ("devlink: Count struct devlink consumers")
we can hold a reference on a devlink instance and prevent it from
going away (sort of like netdev with dev_hold()). We can use this
to create a more natural reference nesting where we get a ref on
the devlink instance and make the devlink call entirely outside
of the rtnl_lock section.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:26:07 +00:00
Jakub Kicinski
1af0a0948e ethtool: don't drop the rtnl_lock half way thru the ioctl
devlink compat code needs to drop rtnl_lock to take
devlink->lock to ensure correct lock ordering.

This is problematic because we're not strictly guaranteed
that the netdev will not disappear after we re-lock.
It may open a possibility of nested ->begin / ->complete
calls.

Instead of calling into devlink under rtnl_lock take
a ref on the devlink instance and make the call after
we've dropped rtnl_lock.

We (continue to) assume that netdevs have an implicit
reference on the devlink returned from ndo_get_devlink_port

Note that ndo_get_devlink_port will now get called
under rtnl_lock. That should be fine since none of
the drivers seem to be taking serious locks inside
ndo_get_devlink_port.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:26:07 +00:00
Jakub Kicinski
46db1b77cd devlink: expose get/put functions
Allow those who hold implicit reference on a devlink instance
to try to take a full ref on it. This will be used from netdev
code which has an implicit ref because of driver call ordering.

Note that after recent changes devlink_unregister() may happen
before netdev unregister, but devlink_free() should still happen
after, so we are safe to try, but we can't just refcount_inc()
and assume it's not zero.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:26:07 +00:00
Jakub Kicinski
095cfcfe13 ethtool: handle info/flash data copying outside rtnl_lock
We need to increase the lifetime of the data for .get_info
and .flash_update beyond their handlers inside rtnl_lock.

Allocate a union on the heap and use it instead.

Note that we now copy the ethcmd before we lookup dev,
hopefully there is no crazy user space depending on error
codes.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:26:07 +00:00
Jakub Kicinski
f49deaa64a ethtool: push the rtnl_lock into dev_ethtool()
Don't take the lock in net/core/dev_ioctl.c,
we'll have things to do outside rtnl_lock soon.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:26:07 +00:00
David S. Miller
c6e03dbe0c Merge branch 'mana-misc'
Dexuan Cui says:

====================
net: mana: some misc patches

Patch 1 is a small fix.

Patch 2 reports OS info to the PF driver.
Before the patch, the req fields were all zeros.

Patch 3 fixes and cleans up the error handling of HWC creation failure.

Patch 4 adds the callbacks for hibernation/kexec. It's based on patch 3.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:21:49 +00:00
Dexuan Cui
635096a86e net: mana: Support hibernation and kexec
Implement the suspend/resume/shutdown callbacks for hibernation/kexec.

Add mana_gd_setup() and mana_gd_cleanup() for some common code, and
use them in the mand_gd_* callbacks.

Reuse mana_probe/remove() for the hibernation path.

Signed-off-by: Dexuan Cui <decui@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:21:49 +00:00
Dexuan Cui
62ea8b77ed net: mana: Improve the HWC error handling
Currently when the HWC creation fails, the error handling is flawed,
e.g. if mana_hwc_create_channel() -> mana_hwc_establish_channel() fails,
the resources acquired in mana_hwc_init_queues() is not released.

Enhance mana_hwc_destroy_channel() to do the proper cleanup work and
call it accordingly.

Signed-off-by: Dexuan Cui <decui@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:21:49 +00:00
Dexuan Cui
3c37f35735 net: mana: Report OS info to the PF driver
The PF driver might use the OS info for statistical purposes.

Signed-off-by: Dexuan Cui <decui@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:21:49 +00:00
Dexuan Cui
6c7ea69653 net: mana: Fix the netdev_err()'s vPort argument in mana_init_port()
Use the correct port index rather than 0.

Signed-off-by: Dexuan Cui <decui@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:21:49 +00:00
David S. Miller
986d2e3da7 Merge branch 'mptcp-selftests'
Mat Martineau says:

====================
mptcp: Some selftest improvements

Here are a couple of selftest changes for MPTCP.

Patch 1 fixes a mistake where the wrong protocol (TCP vs MPTCP) could be
requested on the listening socket in some link failure tests.

Patch 2 refactors the simulataneous flow tests to improve timing
accuracy and give more consistent results.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:19:49 +00:00
Paolo Abeni
b6ab64b074 selftests: mptcp: more stable simult_flows tests
Currently the simult_flows.sh self-tests are not very stable,
especially when running on slow VMs.

The tests measure runtime for transfers on multiple subflows
and check that the time is near the theoretical maximum.

The current test infra introduces a bit of jitter in test
runtime, due to multiple explicit delays. Additionally the
runtime is measured by the shell script wrapper. On a slow
VM, the script overhead is measurable and subject to relevant
jitter.

One solution to make the test more stable would be adding more
slack to the expected time; that could possibly hide real
regressions. Instead move the measurement inside the command
doing the transfer, and drop most unneeded sleeps.

Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:19:49 +00:00
Geliang Tang
7c909a9804 selftests: mptcp: fix proto type in link_failure tests
In listener_ns, we should pass srv_proto argument to mptcp_connect command,
not cl_proto.

Fixes: 7d1e6f1639 ("selftests: mptcp: add testcase for active-back")
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:19:49 +00:00
Sukadev Bhattiprolu
6b278c0cb3 ibmvnic: delay complete()
If we get CRQ_INIT, we set errno to -EIO and first call complete() to
notify the waiter. Then we try to schedule a FAILOVER reset. If this
occurs while adapter is in PROBING state, ibmvnic_reset() changes the
error code to EAGAIN and returns without scheduling the FAILOVER. The
purpose of setting error code to EAGAIN is to ask the waiter to retry.

But due to the earlier complete() call, the waiter may already have seen
the -EIO response and decided not to retry. This can cause intermittent
failures when bringing up ibmvnic adapters during boot, specially in
in kexec/kdump kernels.

Defer the complete() call until after scheduling the reset.

Also streamline the error code to EAGAIN. Don't see why we need EIO
sometimes. All 3 callers of ibmvnic_reset_init() can handle EAGAIN.

Fixes: 17c8705838 ("ibmvnic: Return error code if init interrupted by transport event")
Reported-by: Vaishnavi Bhat <vaish123@in.ibm.com>
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Reviewed-by: Dany Madden <drt@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:14:52 +00:00
Sukadev Bhattiprolu
6e20d00158 ibmvnic: Process crqs after enabling interrupts
Soon after registering a CRQ it is possible that we get a fail over or
maybe a CRQ_INIT from the VIOS while interrupts were disabled.

Look for any such CRQs after enabling interrupts.

Otherwise we can intermittently fail to bring up ibmvnic adapters during
boot, specially in kexec/kdump kernels.

Fixes: 032c5e8284 ("Driver for IBM System i/p VNIC protocol")
Reported-by: Vaishnavi Bhat <vaish123@in.ibm.com>
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Reviewed-by: Dany Madden <drt@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:14:52 +00:00
Sukadev Bhattiprolu
8878e46fcf ibmvnic: don't stop queue in xmit
If adapter's resetting bit is on, discard the packet but don't stop the
transmit queue - instead leave that to the reset code. With this change,
it is possible that we may get several calls to ibmvnic_xmit() that simply
discard packets and return.

But if we stop the queue here, we might end up doing so just after
__ibmvnic_open() started the queues (during a hard/soft reset) and before
the ->resetting bit was cleared. If that happens, there will be no one to
restart queue and transmissions will be blocked indefinitely.

This can cause a TIMEOUT reset and with auto priority failover enabled,
an unnecessary FAILOVER reset to less favored backing device and then a
FAILOVER back to the most favored backing device. If we hit the window
repeatedly, we can get stuck in a loop of TIMEOUT, FAILOVER, FAILOVER
resets leaving the adapter unusable for extended periods of time.

Fixes: 7f5b030830 ("ibmvnic: Free skb's in cases of failure in transmit")
Reported-by: Abdul Haleem <abdhalee@in.ibm.com>
Reported-by: Vaishnavi Bhat <vaish123@in.ibm.com>
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Reviewed-by: Dany Madden <drt@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:14:52 +00:00
David S. Miller
7be49d242b Merge branch 'SO_MARK-routing'
Jakub Kicinski says:

====================
udp6: allow SO_MARK ctrl msg to affect routing

Looks like SO_MARK from cmsg does not affect routing policy.
This seems accidental.

I opted for net because of the discrepancy between IPv4
and IPv6, but it never worked and doesn't cause crashes..
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:12:48 +00:00
Jakub Kicinski
b0ced8f290 selftests: udp: test for passing SO_MARK as cmsg
Before fix:
|  Case IPv6 rejection returned 0, expected 1
|FAIL - 1/4 cases failed

With the fix:
| OK

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:12:48 +00:00
Jakub Kicinski
42dcfd850e udp6: allow SO_MARK ctrl msg to affect routing
Commit c6af0c227a ("ip: support SO_MARK cmsg")
added propagation of SO_MARK from cmsg to skb->mark.
For IPv4 and raw sockets the mark also affects route
lookup, but in case of IPv6 the flow info is
initialized before cmsg is parsed.

Fixes: c6af0c227a ("ip: support SO_MARK cmsg")
Reported-and-tested-by: Xintong Hu <huxintong@fb.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:12:48 +00:00
Yu Xiao
f7536ffb09 nfp: flower: Allow ipv6gretap interface for offloading
The tunnel_type check only allows for "netif_is_gretap", but for
OVS the port is actually "netif_is_ip6gretap" when setting up GRE
for ipv6, which means offloading request was rejected before.

Therefore, adding "netif_is_ip6gretap" allow ipv6gretap interface
for offloading.

Signed-off-by: Yu Xiao <yu.xiao@corigine.com>
Signed-off-by: Louis Peens <louis.peens@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:09:55 +00:00
Marek Behún
c07c6e8eb4 net: dsa: populate supported_interfaces member
Add a new DSA switch operation, phylink_get_interfaces, which should
fill in which PHY_INTERFACE_MODE_* are supported by given port.

Use this before phylink_create() to fill phylinks supported_interfaces
member, allowing phylink to determine which PHY_INTERFACE_MODEs are
supported.

Signed-off-by: Marek Behún <kabel@kernel.org>
[tweaked patch and description to add more complete support -- rmk]
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:06:32 +00:00
David S. Miller
ebed1cf5b8 Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue
Tony Nguyen says:

====================
100GbE Intel Wired LAN Driver Updates 2021-10-29

This series contains updates to ice and iavf drivers and virtchnl header
file.

Brett removes vlan_promisc argument from a function call for ice driver.
In the virtchnl header file he removes an unused, reserved define and
converts raw value defines to instead use the BIT macro.

Marcin adds syncing of MAC addresses when creating switchdev VFs to
remove error messages on link up and stops showing buffer information
for port representors to remove duplicated entries being displayed for
ice driver.

Karen introduces a helper to go from pci_dev to iavf_adapter in the
iavf driver.

Przemyslaw fixes an issue where iavf was attempting to free IRQs before
calling disable.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:05:20 +00:00
David S. Miller
06f1ecd433 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
Steffen Klassert says:

====================
pull request (net-next): ipsec-next 2021-10-30

Just two minor changes this time:

1) Remove some superfluous header files from xfrm4_tunnel.c
   From Mianhan Liu.

2) Simplify some error checks in xfrm_input().
   From luo penghao.

Please pull or let me know if there are problems.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 13:01:44 +00:00
David S. Miller
894d084434 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
Pablo Neira Ayuso says:

====================
Netfilter updates for net-next

The following patchset contains Netfilter updates for net-next:

1) Use array_size() in ebtables, from Gustavo A. R. Silva.

2) Attach IPS_ASSURED to internal UDP stream state, reported by
   Maciej Zenczykowski.

3) Add NFT_META_IFTYPE to match on the interface type either
   from ingress or egress.

4) Generalize pktinfo->tprot_set to flags field.

5) Allow to match on inner headers / payload data.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 12:59:58 +00:00
David S. Miller
2aec919f8d mlx5-updates-2021-10-29
1) Minor trivial refactoring and improvements
 2) Check for unsupported parameters fields in SW steering
 3) Support TC offload for OVS internal port, from Ariel, see below.
 
 Ariel Levkovich says:
 
 =====================
 
 Support HW offload of TC rules involving OVS internal port
 device type as the filter device or the destination
 device.
 
 The support is for flows which explicitly use the internal
 port as source or destination device as well as indirect offload
 for flows performing tunnel set or unset via a tunnel device
 and the internal port is the tunnel overlay device.
 
 Since flows with internal port as source port are added
 as egress rules while redirecting to internal port is done
 as an ingress redirect, the series introduces the necessary
 changes in mlx5_core driver to support the new types of flows
 and actions.
 
 =====================
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Merge tag 'mlx5-updates-2021-10-29' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5-updates-2021-10-29

1) Minor trivial refactoring and improvements
2) Check for unsupported parameters fields in SW steering
3) Support TC offload for OVS internal port, from Ariel, see below.

Ariel Levkovich says:

=====================

Support HW offload of TC rules involving OVS internal port
device type as the filter device or the destination
device.

The support is for flows which explicitly use the internal
port as source or destination device as well as indirect offload
for flows performing tunnel set or unset via a tunnel device
and the internal port is the tunnel overlay device.

Since flows with internal port as source port are added
as egress rules while redirecting to internal port is done
as an ingress redirect, the series introduces the necessary
changes in mlx5_core driver to support the new types of flows
and actions.

=====================

====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01 12:53:24 +00:00
Kamal Heib
4e446714fb RDMA/qed: Use helper function to set GUIDs
Use addrconf_addr_eui48() helper function to set the GUIDs and remove the
driver specific version.

Link: https://lore.kernel.org/r/20211031170743.81755-1-kamalheib1@gmail.com
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-11-01 09:17:10 -03:00
Bixuan Cui
bbd5ba8db7 RISC-V: KVM: fix boolreturn.cocci warnings
Fix boolreturn.cocci warnings:
./arch/riscv/kvm/mmu.c:603:9-10: WARNING: return of 0/1 in function
'kvm_age_gfn' with return type bool
./arch/riscv/kvm/mmu.c:582:9-10: WARNING: return of 0/1 in function
'kvm_set_spte_gfn' with return type bool
./arch/riscv/kvm/mmu.c:621:9-10: WARNING: return of 0/1 in function
'kvm_test_age_gfn' with return type bool
./arch/riscv/kvm/mmu.c:568:9-10: WARNING: return of 0/1 in function
'kvm_unmap_gfn_range' with return type bool

Signed-off-by: Bixuan Cui <cuibixuan@linux.alibaba.com>
Signed-off-by: Anup Patel <anup.patel@wdc.com>
2021-11-01 17:35:17 +05:30
ran jianping
7b161d9cab RISC-V: KVM: remove unneeded semicolon
Elimate the following coccinelle check warning:
 ./arch/riscv/kvm/vcpu_sbi.c:169:2-3: Unneeded semicolon
 ./arch/riscv/kvm/vcpu_exit.c:397:2-3: Unneeded semicolon
 ./arch/riscv/kvm/vcpu_exit.c:687:2-3: Unneeded semicolon
 ./arch/riscv/kvm/vcpu_exit.c:645:2-3: Unneeded semicolon
 ./arch/riscv/kvm/vcpu.c:247:2-3: Unneeded semicolon
 ./arch/riscv/kvm/vcpu.c:284:2-3: Unneeded semicolon
 ./arch/riscv/kvm/vcpu_timer.c:123:2-3: Unneeded semicolon
 ./arch/riscv/kvm/vcpu_timer.c:170:2-3: Unneeded semicolon

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: ran jianping <ran.jianping@zte.com.cn>
Signed-off-by: Anup Patel <anup.patel@wdc.com>
2021-11-01 17:35:13 +05:30
Helge Deller
6e866a4628 parisc: Fix set_fixmap() on PA1.x CPUs
Fix a kernel crash which happens on PA1.x CPUs while initializing the
FTRACE/KPROBE breakpoints.  The PTE table entries for the fixmap area
were not created correctly.

Signed-off-by: Helge Deller <deller@gmx.de>
Fixes: ccfbc68d41 ("parisc: add set_fixmap()/clear_fixmap()")
Cc: stable@vger.kernel.org # v5.2+
2021-11-01 12:00:22 +01:00
Yihao Han
1ae8e91e81 parisc: Use swap() to swap values in setup_bootmem()
Signed-off-by: Yihao Han <hanyihao@vivo.com>
Signed-off-by: Helge Deller <deller@gmx.de>
2021-11-01 11:59:49 +01:00
Eli Cohen
540061ac79 vdpa/mlx5: Forward only packets with allowed MAC address
Add rules to forward packets to the net device's TIR only if the
destination MAC is equal to the configured MAC. This is required to
prevent the netdevice from receiving traffic not destined to its
configured MAC.

Signed-off-by: Eli Cohen <elic@nvidia.com>
Reviewed-by: Parav Pandit <parav@nvidia.com>
Link: https://lore.kernel.org/r/20211026175519.87795-9-parav@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
2021-11-01 05:26:49 -04:00
Eli Cohen
a007d94004 vdpa/mlx5: Support configuration of MAC
Add code to accept MAC configuration through vdpa tool. The MAC is
written into the config struct and later can be retrieved through
get_config().

Examples:
1. Configure MAC while adding a device:
$ vdpa dev add mgmtdev pci/0000:06:00.2 name vdpa0 mac 00:11:22:33:44:55

2. Show configured params:
$ vdpa dev config show
vdpa0: mac 00:11:22:33:44:55 link down link_announce false max_vq_pairs 8 mtu 1500

Signed-off-by: Eli Cohen <elic@nvidia.com>
Reviewed-by: Parav Pandit <parav@nvidia.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20211026175519.87795-8-parav@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-11-01 05:26:49 -04:00
Parav Pandit
ef76eb83a1 vdpa/mlx5: Fix clearing of VIRTIO_NET_F_MAC feature bit
Cited patch in the fixes tag clears the features bit during reset.
mlx5 vdpa device feature bits are static decided by device capabilities.
These feature bits (including VIRTIO_NET_F_MAC) are initialized during
device addition time.

Clearing features bit in reset callback cleared the VIRTIO_NET_F_MAC. Due
to this, MAC address provided by the device is not honored.

Fix it by not clearing the static feature bits during reset.

Fixes: 0686082dbf ("vdpa: Add reset callback in vdpa_config_ops")
Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Eli Cohen <elic@nvidia.com>
Link: https://lore.kernel.org/r/20211026175519.87795-7-parav@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
2021-11-01 05:26:49 -04:00
Parav Pandit
1138b9818e vdpa_sim_net: Enable user to set mac address and mtu
Enable user to set the mac address and mtu so that each vdpa device
can have its own user specified mac address and mtu.

Now that user is enabled to set the mac address, remove the module
parameter for same.

And example of setting mac addr and mtu and view the configuration:
$ vdpa mgmtdev show
vdpasim_net:
  supported_classes net

$ vdpa dev add name bar mgmtdev vdpasim_net mac 00:11:22:33:44:55 mtu 9000

$ vdpa dev config show
bar: mac 00:11:22:33:44:55 link up link_announce false mtu 9000

Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Eli Cohen <elic@nvidia.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://lore.kernel.org/r/20211026175519.87795-6-parav@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-11-01 05:26:49 -04:00