Commit Graph

1867 Commits

Author SHA1 Message Date
Paul Barker af0ae997a3 doc: net: dsa: Fix typo in config code sample
In the "single port" example code for configuring a DSA switch without
tagging support from userspace the command to bring up the "lan2" link
was typo'd.

Signed-off-by: Paul Barker <pbarker@konsulko.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-03 10:38:22 -07:00
Nivedita Singhvi b07e2a8613 docs: networking: bonding.rst resources section cleanup
Removed obsolete resources from bonding.rst doc:
   - bonding-devel@lists.sourceforge.net hasn't been used since 2008
   - admin interface is 404
   - Donald Becker's domain/content no longer online

Signed-off-by: Nivedita Singhvi <nivedita.singhvi@canonical.com>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-14 16:44:20 -07:00
David S. Miller cabf06e5a2 wireless-drivers-next patches for v5.9
Second set of patches for v5.9. mt76 has most of patches this time.
 Otherwise it's just smaller fixes and cleanups to other drivers.
 
 There was a major conflict in mt76 driver between wireless-drivers and
 wireless-drivers-next. I solved that by merging the former to the
 latter.
 
 Major changes:
 
 rtw88
 
 * add support for ieee80211_ops::change_interface
 
 * add support for enabling and disabling beacon
 
 * add debugfs file for testing h2c
 
 mt76
 
 * ARP filter offload for 7663
 
 * runtime power management for 7663
 
 * testmode support for mfg calibration
 
 * support for more channels
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Merge tag 'wireless-drivers-next-2020-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for v5.9

Second set of patches for v5.9. mt76 has most of patches this time.
Otherwise it's just smaller fixes and cleanups to other drivers.

There was a major conflict in mt76 driver between wireless-drivers and
wireless-drivers-next. I solved that by merging the former to the
latter.

Major changes:

rtw88

* add support for ieee80211_ops::change_interface

* add support for enabling and disabling beacon

* add debugfs file for testing h2c

mt76

* ARP filter offload for 7663

* runtime power management for 7663

* testmode support for mfg calibration

* support for more channels
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-04 12:57:02 -07:00
David S. Miller 2e7199bd77 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:

====================
pull-request: bpf-next 2020-08-04

The following pull-request contains BPF updates for your *net-next* tree.

We've added 73 non-merge commits during the last 9 day(s) which contain
a total of 135 files changed, 4603 insertions(+), 1013 deletions(-).

The main changes are:

1) Implement bpf_link support for XDP. Also add LINK_DETACH operation for the BPF
   syscall allowing processes with BPF link FD to force-detach, from Andrii Nakryiko.

2) Add BPF iterator for map elements and to iterate all BPF programs for efficient
   in-kernel inspection, from Yonghong Song and Alexei Starovoitov.

3) Separate bpf_get_{stack,stackid}() helpers for perf events in BPF to avoid
   unwinder errors, from Song Liu.

4) Allow cgroup local storage map to be shared between programs on the same
   cgroup. Also extend BPF selftests with coverage, from YiFei Zhu.

5) Add BPF exception tables to ARM64 JIT in order to be able to JIT BPF_PROBE_MEM
   load instructions, from Jean-Philippe Brucker.

6) Follow-up fixes on BPF socket lookup in combination with reuseport group
   handling. Also add related BPF selftests, from Jakub Sitnicki.

7) Allow to use socket storage in BPF_PROG_TYPE_CGROUP_SOCK-typed programs for
   socket create/release as well as bind functions, from Stanislav Fomichev.

8) Fix an info leak in xsk_getsockopt() when retrieving XDP stats via old struct
   xdp_statistics, from Peilin Ye.

9) Fix PT_REGS_RC{,_CORE}() macros in libbpf for MIPS arch, from Jerry Crunchtime.

10) Extend BPF kernel test infra with skb->family and skb->{local,remote}_ip{4,6}
    fields and allow user space to specify skb->dev via ifindex, from Dmitry Yakunin.

11) Fix a bpftool segfault due to missing program type name and make it more robust
    to prevent them in future gaps, from Quentin Monnet.

12) Consolidate cgroup helper functions across selftests and fix a v6 localhost
    resolver issue, from John Fastabend.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 18:27:40 -07:00
David S. Miller 76769c38b4 mlx5-updates-2020-08-03
This patchset introduces some updates to mlx5 driver.
 
 1) Jakub converts mlx5 to use the new udp tunnel infrastructure.
    Starting with a hack to allow drivers to request a static configuration
    of the default vxlan port, and then a patch that converts mlx5.
 
 2) Parav implements change_carrier ndo for VF eswitch representors,
    to speedup link state control of representors netdevices.
 
 3) Alex Vesker, makes a simple update to software steering to fix an issue
    with push vlan action sequence
 
 4) Leon removes a redundant dump stack on error flow.
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Merge tag 'mlx5-updates-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5-updates-2020-08-03

This patchset introduces some updates to mlx5 driver.

1) Jakub converts mlx5 to use the new udp tunnel infrastructure.
   Starting with a hack to allow drivers to request a static configuration
   of the default vxlan port, and then a patch that converts mlx5.

2) Parav implements change_carrier ndo for VF eswitch representors,
   to speedup link state control of representors netdevices.

3) Alex Vesker, makes a simple update to software steering to fix an issue
   with push vlan action sequence

4) Leon removes a redundant dump stack on error flow.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 18:24:30 -07:00
Amit Cohen 08e335f6ad devlink: Add early_drop trap
Add the packet trap that can report packets that were ECN marked due to RED
AQM.

Signed-off-by: Amit Cohen <amitc@mellanox.com>
Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-03 18:06:46 -07:00
Jakub Kicinski 966e505976 udp_tunnel: add the ability to hard-code IANA VXLAN
mlx5 has the IANA VXLAN port (4789) hard coded by the device,
instead of being added dynamically when tunnels are created.

To support this add a workaround flag to struct udp_tunnel_nic_info.
Skipping updates for the port is fairly trivial, dumping the hard
coded port via ethtool requires some code duplication. The port
is not a part of any real table, we dump it in a special table
which has no tunnel types supported and only one entry.

This is the last known workaround / hack needed to convert
all drivers to the new infra.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-08-03 10:13:54 -07:00
Alexander A. Klimov 348cb5dc4d ipw2x00: Replace HTTP links with HTTPS ones
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200718100240.98593-1-grandmaster@al2klimov.de
2020-08-02 18:15:38 +03:00
David S. Miller bd0b33b248 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Resolved kernel/bpf/btf.c using instructions from merge commit
69138b34a7

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-02 01:02:12 -07:00
Tiezhu Yang ffba964e4d Documentation/bpf: Use valid and new links in index.rst
There exists an error "404 Not Found" when I click the html link of
"Documentation/networking/filter.rst" in the BPF documentation [1],
fix it.

Additionally, use the new links about "BPF and XDP Reference Guide"
and "bpf(2)" to avoid redirects.

[1] https://www.kernel.org/doc/html/latest/bpf/

Fixes: d9b9170a26 ("docs: bpf: Rename README.rst to index.rst")
Fixes: cb3f0d56e1 ("docs: networking: convert filter.txt to ReST")
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/1596184142-18476-1-git-send-email-yangtiezhu@loongson.cn
2020-07-31 18:17:51 +02:00
Alexander A. Klimov 09a071f52b Documentation: intel: Replace HTTP links with HTTPS ones
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
          If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-30 10:51:26 -07:00
Ido Schimmel ec4f5b3617 mlxsw: spectrum: Use different trap group for externally routed packets
Cited commit mistakenly removed the trap group for externally routed
packets (e.g., via the management interface) and grouped locally routed
and externally routed packet traps under the same group, thereby
subjecting them to the same policer.

This can result in problems, for example, when FRR is restarted and
suddenly all transient traffic is trapped to the CPU because of a
default route through the management interface. Locally routed packets
required to re-establish a BGP connection will never reach the CPU and
the routing tables will not be re-populated.

Fix this by using a different trap group for externally routed packets.

Fixes: 8110668ecd ("mlxsw: spectrum_trap: Register layer 3 control traps")
Reported-by: Alex Veber <alexve@mellanox.com>
Tested-by: Alex Veber <alexve@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-29 12:16:21 -07:00
Martin Varghese 1ed06dbc21 Documentation: bareudp: Corrected description of bareudp module.
Removed redundant words.

Fixes: 571912c69f ("net: UDP tunnel encapsulation module for tunnelling different protocols like MPLS, IP, NSH etc.")
Signed-off-by: Martin Varghese <martin.varghese@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-28 17:53:03 -07:00
David S. Miller a57066b1a0 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
The UDP reuseport conflict was a little bit tricky.

The net-next code, via bpf-next, extracted the reuseport handling
into a helper so that the BPF sk lookup code could invoke it.

At the same time, the logic for reuseport handling of unconnected
sockets changed via commit efc6b6f6c3
which changed the logic to carry on the reuseport result into the
rest of the lookup loop if we do not return immediately.

This requires moving the reuseport_has_conns() logic into the callers.

While we are here, get rid of inline directives as they do not belong
in foo.c files.

The other changes were cases of more straightforward overlapping
modifications.

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-25 17:49:04 -07:00
Richard Sailer 749c08f820 net: dccp: Add SIOCOUTQ IOCTL support (send buffer fill)
This adds support for the SIOCOUTQ IOCTL to get the send buffer fill
of a DCCP socket, like UDP and TCP sockets already have.

Regarding the used data field: DCCP uses per packet sequence numbers,
not per byte, so sequence numbers can't be used like in TCP. sk_wmem_queued
is not used by DCCP and always 0, even in test on highly congested paths.
Therefore this uses sk_wmem_alloc like in UDP.

Signed-off-by: Richard Sailer <richard_siegfried@systemli.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-22 17:00:37 -07:00
Martin Varghese 4787dd582d bareudp: Reverted support to enable & disable rx metadata collection
The commit fe80536acf ("bareudp: Added attribute to enable & disable
rx metadata collection") breaks the the original(5.7) default behavior of
bareudp module to collect RX metadadata at the receive. It was added to
avoid the crash at the kernel neighbour subsytem when packet with metadata
from bareudp is processed. But it is no more needed as the
commit 394de110a7 ("net: Added pointer check for
dst->ops->neigh_lookup in dst_neigh_lookup_skb") solves this crash.

Fixes: fe80536acf ("bareudp: Added attribute to enable & disable rx metadata collection")
Signed-off-by: Martin Varghese <martin.varghese@nokia.com>
Acked-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-21 18:30:47 -07:00
Guillaume Nault 34b85adad8 Documentation: bareudp: update iproute2 sample commands
bareudp.rst was written before iproute2 gained support for this new
type of tunnel. Therefore, the sample command lines didn't match the
final iproute2 implementation.

Signed-off-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-20 17:57:20 -07:00
Vladimir Oltean 94d9f78f4d docs: networking: timestamping: add section for stacked PHC devices
The concept of timestamping DSA switches / Ethernet PHYs is becoming
more and more popular, however the Linux kernel timestamping code has
evolved quite organically and there's layers upon layers of new and old
code that need to work together for things to behave as expected.

Add this chapter to explain what the overall goals are.

Loosely based upon this email discussion plus some more info:
https://lkml.org/lkml/2020/7/6/481

Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-15 17:51:30 -07:00
David S. Miller 71930d6102 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
All conflicts seemed rather trivial, with some guidance from
Saeed Mameed on the tc_ct.c one.

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-11 00:46:00 -07:00
Jakub Kicinski c7d759eb7b ethtool: add tunnel info interface
Add an interface to report offloaded UDP ports via ethtool netlink.

Now that core takes care of tracking which UDP tunnel ports the NICs
are aware of we can quite easily export this information out to
user space.

The responsibility of writing the netlink dumps is split between
ethtool code and udp_tunnel_nic.c - since udp_tunnel module may
not always be loaded, yet we should always report the capabilities
of the NIC.

$ ethtool --show-tunnels eth0
Tunnel information for eth0:
  UDP port table 0:
    Size: 4
    Types: vxlan
    No entries
  UDP port table 1:
    Size: 4
    Types: geneve, vxlan-gpe
    Entries (1):
        port 1230, vxlan-gpe

v4:
 - back to v2, build fix is now directly in udp_tunnel.h
v3:
 - don't compile ETHTOOL_MSG_TUNNEL_INFO_GET in if CONFIG_INET
   not set.
v2:
 - fix string set count,
 - reorder enums in the uAPI,
 - fix type of ETHTOOL_A_TUNNEL_UDP_TABLE_TYPES to bitset
   in docs and comments.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-10 13:54:00 -07:00
Randy Dunlap 1a4d681634 Documentation: networking: fix ethtool-netlink table formats
Fix table formatting to eliminate warnings.

Documentation/networking/ethtool-netlink.rst:509: WARNING: Malformed table.
Documentation/networking/ethtool-netlink.rst:522: WARNING: Malformed table.
Documentation/networking/ethtool-netlink.rst:543: WARNING: Malformed table.
Documentation/networking/ethtool-netlink.rst:555: WARNING: Malformed table.
Documentation/networking/ethtool-netlink.rst:591: WARNING: Malformed table.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 15:39:29 -07:00
Jacob Keller 14f5d8e3bb ice: add documentation for device-caps region
The recent change by commit 8d7aab3515 ("ice: implement snapshot for
device capabilities") to implement the device-caps region for the ice
driver forgot to document it.

Add documentation to the ice devlink documentation file describing the
new region and add some sample output to the shell commands provided as
an example.

Fixes: 8d7aab3515 ("ice: implement snapshot for device capabilities")
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 12:41:01 -07:00
Randy Dunlap e54ac95afb Documentation: networking: rxrpc: drop doubled word
Drop the doubled word "have".

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: netdev@vger.kernel.org
Cc: David Howells <dhowells@redhat.com>
Cc: linux-afs@lists.infradead.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-04 17:46:21 -07:00
Randy Dunlap 474112d57c Documentation: networking: ipvs-sysctl: drop doubled word
Drop the doubled word "that".

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-04 17:46:21 -07:00
Randy Dunlap a7db3c7669 Documentation: networking: ip-sysctl: drop doubled word
Drop the doubled word "that".

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-04 17:46:21 -07:00
Randy Dunlap 4f6a009c8b Documentation: networking: dsa: drop doubled word
Drop the doubled word "in".

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: netdev@vger.kernel.org
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Vivien Didelot <vivien.didelot@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-04 17:46:21 -07:00
Randy Dunlap 6d0fe3aea4 Documentation: networking: can_ucan_protocol: drop doubled words
Drop the doubled words "the" and "of".

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: netdev@vger.kernel.org
Cc: Wolfgang Grandegger <wg@grandegger.com>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: linux-can@vger.kernel.org
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-04 17:46:21 -07:00
Randy Dunlap e99094856d Documentation: networking: ax25: drop doubled word
Drop the doubled word "and".

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: netdev@vger.kernel.org
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-hams@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-04 17:46:21 -07:00
Randy Dunlap caebecb032 Documentation: networking: arcnet: drop doubled word
Drop the doubled word "to".

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-04 17:46:21 -07:00
David S. Miller d9b8b9845f This feature/cleanup patchset includes the following patches:
- bump version strings, by Simon Wunderlich
 
  - update mailing list URL, by Sven Eckelmann
 
  - fix typos and grammar in documentation, by Sven Eckelmann
 
  - introduce a configurable per interface hop penalty,
    by Linus Luessing
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Merge tag 'batadv-next-for-davem-20200630' of git://git.open-mesh.org/linux-merge

Simon Wunderlich says:

====================
This feature/cleanup patchset includes the following patches:

 - bump version strings, by Simon Wunderlich

 - update mailing list URL, by Sven Eckelmann

 - fix typos and grammar in documentation, by Sven Eckelmann

 - introduce a configurable per interface hop penalty,
   by Linus Luessing
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-30 12:59:15 -07:00
Amit Cohen e120c801b8 Documentation: networking: ethtool-netlink: Add link extended state
Add link extended state attributes.

Signed-off-by: Amit Cohen <amitc@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-29 17:45:02 -07:00
David S. Miller 1078029172 mlx5-tls-2020-06-26
1) Improve hardware layouts and structure for kTLS support
 
 2) Generalize ICOSQ (Internal Channel Operations Send Queue)
 Due to the asynchronous nature of adding new kTLS flows and handling
 HW asynchronous kTLS resync requests, the XSK ICOSQ was extended to
 support generic async operations, such as kTLS add flow and resync, in
 addition to the existing XSK usages.
 
 3) kTLS hardware flow steering and classification:
 The driver already has the means to classify TCP ipv4/6 flows to send them
 to the corresponding RSS HW engine, as reflected in patches 3 through 5,
 the series will add a steering layer that will hook to the driver's TCP
 classifiers and will match on well known kTLS connection, in case of a
 match traffic will be redirected to the kTLS decryption engine, otherwise
 traffic will continue flowing normally to the TCP RSS engine.
 
 3) kTLS add flow RX HW offload support
 New offload contexts post their static/progress params WQEs
 (Work Queue Element) to communicate the newly added kTLS contexts
 over the per-channel async ICOSQ.
 
 The Channel/RQ is selected according to the socket's rxq index.
 
 A new TLS-RX workqueue is used to allow asynchronous addition of
 steering rules, out of the NAPI context.
 It will be also used in a downstream patch in the resync procedure.
 
 Feature is OFF by default. Can be turned on by:
 $ ethtool -K <if> tls-hw-rx-offload on
 
 4) Added mlx5 kTLS sw stats and new counters are documented in
 Documentation/networking/tls-offload.rst
 rx_tls_ctx - number of TLS RX HW offload contexts added to device for
 decryption.
 
 rx_tls_ooo - number of RX packets which were part of a TLS stream
 but did not arrive in the expected order and triggered the resync
 procedure.
 
 rx_tls_del - number of TLS RX HW offload contexts deleted from device
 (connection has finished).
 
 rx_tls_err - number of RX packets which were part of a TLS stream
  but were not decrypted due to unexpected error in the state machine.
 
 5) Asynchronous RX resync
 
 a. The NIC driver indicates that it would like to resync on some TLS
 record within the received packet (P), but the driver does not
 know (yet) which of the TLS records within the packet.
 At this stage, the NIC driver will query the device to find the exact
 TCP sequence for resync (tcpsn), however, the driver does not wait
 for the device to provide the response.
 
 b. Eventually, the device responds, and the driver provides the tcpsn
 within the resync packet to KTLS. Now, KTLS can check the tcpsn against
 any processed TLS records within packet P, and also against any record
 that is processed in the future within packet P.
 
 The asynchronous resync path simplifies the device driver, as it can
 save bits on the packet completion (32-bit TCP sequence), and pass this
 information on an asynchronous command instead.
 
 Performance:
     CPU: Intel(R) Xeon(R) CPU E5-2687W v4 @ 3.00GHz, 24 cores, HT off
     NIC: ConnectX-6 Dx 100GbE dual port
 
     Goodput (app-layer throughput) comparison:
     +---------------+-------+-------+---------+
     | # connections |   1   |   4   |    8    |
     +---------------+-------+-------+---------+
     | SW (Gbps)     |  7.26 | 24.70 |   50.30 |
     +---------------+-------+-------+---------+
     | HW (Gbps)     | 18.50 | 64.30 |   92.90 |
     +---------------+-------+-------+---------+
     | Speedup       | 2.55x | 2.56x | 1.85x * |
     +---------------+-------+-------+---------+
 
     * After linerate is reached, diff is observed in CPU util
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Merge tag 'mlx5-tls-2020-06-26' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5-tls-2020-06-26

1) Improve hardware layouts and structure for kTLS support

2) Generalize ICOSQ (Internal Channel Operations Send Queue)
Due to the asynchronous nature of adding new kTLS flows and handling
HW asynchronous kTLS resync requests, the XSK ICOSQ was extended to
support generic async operations, such as kTLS add flow and resync, in
addition to the existing XSK usages.

3) kTLS hardware flow steering and classification:
The driver already has the means to classify TCP ipv4/6 flows to send them
to the corresponding RSS HW engine, as reflected in patches 3 through 5,
the series will add a steering layer that will hook to the driver's TCP
classifiers and will match on well known kTLS connection, in case of a
match traffic will be redirected to the kTLS decryption engine, otherwise
traffic will continue flowing normally to the TCP RSS engine.

3) kTLS add flow RX HW offload support
New offload contexts post their static/progress params WQEs
(Work Queue Element) to communicate the newly added kTLS contexts
over the per-channel async ICOSQ.

The Channel/RQ is selected according to the socket's rxq index.

A new TLS-RX workqueue is used to allow asynchronous addition of
steering rules, out of the NAPI context.
It will be also used in a downstream patch in the resync procedure.

Feature is OFF by default. Can be turned on by:
$ ethtool -K <if> tls-hw-rx-offload on

4) Added mlx5 kTLS sw stats and new counters are documented in
Documentation/networking/tls-offload.rst
rx_tls_ctx - number of TLS RX HW offload contexts added to device for
decryption.

rx_tls_ooo - number of RX packets which were part of a TLS stream
but did not arrive in the expected order and triggered the resync
procedure.

rx_tls_del - number of TLS RX HW offload contexts deleted from device
(connection has finished).

rx_tls_err - number of RX packets which were part of a TLS stream
 but were not decrypted due to unexpected error in the state machine.

5) Asynchronous RX resync

a. The NIC driver indicates that it would like to resync on some TLS
record within the received packet (P), but the driver does not
know (yet) which of the TLS records within the packet.
At this stage, the NIC driver will query the device to find the exact
TCP sequence for resync (tcpsn), however, the driver does not wait
for the device to provide the response.

b. Eventually, the device responds, and the driver provides the tcpsn
within the resync packet to KTLS. Now, KTLS can check the tcpsn against
any processed TLS records within packet P, and also against any record
that is processed in the future within packet P.

The asynchronous resync path simplifies the device driver, as it can
save bits on the packet completion (32-bit TCP sequence), and pass this
information on an asynchronous command instead.

Performance:
    CPU: Intel(R) Xeon(R) CPU E5-2687W v4 @ 3.00GHz, 24 cores, HT off
    NIC: ConnectX-6 Dx 100GbE dual port

    Goodput (app-layer throughput) comparison:
    +---------------+-------+-------+---------+
    | # connections |   1   |   4   |    8    |
    +---------------+-------+-------+---------+
    | SW (Gbps)     |  7.26 | 24.70 |   50.30 |
    +---------------+-------+-------+---------+
    | HW (Gbps)     | 18.50 | 64.30 |   92.90 |
    +---------------+-------+-------+---------+
    | Speedup       | 2.55x | 2.56x | 1.85x * |
    +---------------+-------+-------+---------+

    * After linerate is reached, diff is observed in CPU util
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-29 17:18:40 -07:00
Martin fe80536acf bareudp: Added attribute to enable & disable rx metadata collection
Metadata need not be collected in receive if the packet from bareudp
device is not targeted to openvswitch.

Signed-off-by: Martin <martin.varghese@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-28 20:48:20 -07:00
Tariq Toukan 76c1e1ac2a net/mlx5e: kTLS, Add kTLS RX stats
Add global and per-channel ethtool SW stats for the device
offload.
Document the new counters in tls-offload.rst.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-06-27 14:00:23 -07:00
Jakub Kicinski 55f35cf79d docs: networking: move FDDI drivers to the hw driver section
Move docs for defza and skfp under device_drivers/fddi.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26 16:08:45 -07:00
Jakub Kicinski 9633a0e959 docs: networking: move ATM drivers to the hw driver section
Move docs for cxacru, fore200e and iphase under device_drivers/atm.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26 16:08:45 -07:00
Jakub Kicinski 4daedf7abb docs: networking: move AppleTalk / LocalTalk drivers to the hw driver section
Move docs for cops and ltpc under device_drivers/appletalk.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26 16:08:45 -07:00
Jakub Kicinski 95298d63c6 docs: networking: move remaining Ethernet driver docs to the hw section
Move docs for hinic and altera_tse under device_drivers/ethernet.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26 16:08:45 -07:00
Jakub Kicinski 5c3b5da432 docs: networking: move ray_cs to the hw driver section
Move ray_cs into Wi-Fi driver docs subdirectory.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26 16:08:44 -07:00
Jakub Kicinski f05c43e056 docs: networking: move baycom to the hw driver section
Move baycom to hamradio.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26 16:08:44 -07:00
Jakub Kicinski 1447495025 docs: networking: move z8530 to the hw driver section
Move z8530 docs to hamradio and wan subdirectories.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26 16:08:44 -07:00
Jakub Kicinski 132db93572 docs: networking: reorganize driver documentation again
Organize driver documentation by device type. Most documents
have fairly verbose yet uninformative names, so let users
first select a well defined device type, and then search for
a particular driver.

While at it rename the section from Vendor drivers to
Hardware drivers. This seems more accurate, besides people
sometimes refer to out-of-tree drivers as vendor drivers.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26 16:08:44 -07:00
Sven Eckelmann bccb48c89f batman-adv: Fix typos and grammar in documentation
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2020-06-26 10:36:30 +02:00
Sven Eckelmann 4dd5066a38 batman-adv: Switch mailing list subscription page
The mailman installation on lists.open-mesh.org was switched from mailman2
to mailman3. The URL to the subscription webpage changed in this process.

Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2020-06-26 10:35:30 +02:00
David S. Miller 7bed145516 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Minor overlapping changes in xfrm_device.c, between the double
ESP trailing bug fix setting the XFRM_INIT flag and the changes
in net-next preparing for bonding encryption support.

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-25 19:29:51 -07:00
Vasundhara Volam b5872cd0e8 devlink: Add support for board.serial_number to info_get cb.
Board serial number is a serial number, often available in PCI
*Vital Product Data*.

Also, update devlink-info.rst documentation file.

Cc: Jiri Pirko <jiri@mellanox.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-22 16:15:04 -07:00
Stefan Schmidt e2c0b97124 docs: net: ieee802154: change link to new project URL
We finally came around to setup a new project website.
Update the reference here.

Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
2020-06-19 22:08:09 +02:00
Jakub Kicinski ae0b829df7 docs: networkng: convert sja1105's devlink info to RTS
A new file snuck into the tree after all existing documentation
was converted to RST. Convert sja1105's devlink info and move
it where the rest of the drivers are documented.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-10 17:07:04 -07:00
Jakub Kicinski 934e36ec5e docs: networkng: fix lists and table in sja1105
We need an empty line before list stats, otherwise first point
will be smooshed into the paragraph. Inside tables text must
start at the same offset in the cell, otherwise sphinx thinks
it's a new indented block.

Documentation/networking/dsa/sja1105.rst:108: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/networking/dsa/sja1105.rst:112: WARNING: Definition list ends without a blank line; unexpected unindent.
Documentation/networking/dsa/sja1105.rst:245: WARNING: Unexpected indentation.
Documentation/networking/dsa/sja1105.rst:246: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/networking/dsa/sja1105.rst:253: WARNING: Unexpected indentation.
Documentation/networking/dsa/sja1105.rst:254: WARNING: Block quote ends without a blank line; unexpected unindent.

Fixes: a20bc43bfb ("docs: net: dsa: sja1105: document the best_effort_vlan_filtering option")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-10 16:39:09 -07:00
Jakub Kicinski 58e898a07b docs: networking: fix extra spaces in ethtool-netlink
Sphinx appears to get upset at extra spaces at the end of a literal:

Documentation/networking/ethtool-netlink.rst:1032: WARNING: Inline literal start-string without end-string.
Documentation/networking/ethtool-netlink.rst:1034: WARNING: Inline literal start-string without end-string.
Documentation/networking/ethtool-netlink.rst:1036: WARNING: Inline literal start-string without end-string.
Documentation/networking/ethtool-netlink.rst:1089: WARNING: Inline literal start-string without end-string.
Documentation/networking/ethtool-netlink.rst:1091: WARNING: Inline literal start-string without end-string.
Documentation/networking/ethtool-netlink.rst:1093: WARNING: Inline literal start-string without end-string.

Fixes: f2bc8ad31a ("net: ethtool: Allow PHY cable test TDR data to configured")
Fixes: a331172b15 ("net: ethtool: Add attributes for cable test TDR data")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-10 16:38:31 -07:00