<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-toradex.git/Documentation/networking, branch v6.2-rc3</title>
<subtitle>Linux kernel for Apalis and Colibri modules</subtitle>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/'/>
<entry>
<title>Documentation: devlink: add missing toc entry for etas_es58x devlink doc</title>
<updated>2022-12-19T15:08:27+00:00</updated>
<author>
<name>Vincent Mailhol</name>
<email>mailhol.vincent@wanadoo.fr</email>
</author>
<published>2022-12-13T05:11:36+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=115dd5469019296040359060743de77071ccb6ec'/>
<id>115dd5469019296040359060743de77071ccb6ec</id>
<content type='text'>
toc entry is missing for etas_es58x devlink doc and triggers this warning:

  Documentation/networking/devlink/etas_es58x.rst: WARNING: document isn't included in any toctree

Add the missing toc entry.

Fixes: 9f63f96aac92 ("Documentation: devlink: add devlink documentation for the etas_es58x driver")
Signed-off-by: Vincent Mailhol &lt;mailhol.vincent@wanadoo.fr&gt;
Link: https://lore.kernel.org/all/20221213051136.721887-1-mailhol.vincent@wanadoo.fr
Reported-by: Stephen Rothwell &lt;sfr@canb.auug.org.au&gt;
Reported-by: kernel test robot &lt;lkp@intel.com&gt;
Signed-off-by: Marc Kleine-Budde &lt;mkl@pengutronix.de&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
toc entry is missing for etas_es58x devlink doc and triggers this warning:

  Documentation/networking/devlink/etas_es58x.rst: WARNING: document isn't included in any toctree

Add the missing toc entry.

Fixes: 9f63f96aac92 ("Documentation: devlink: add devlink documentation for the etas_es58x driver")
Signed-off-by: Vincent Mailhol &lt;mailhol.vincent@wanadoo.fr&gt;
Link: https://lore.kernel.org/all/20221213051136.721887-1-mailhol.vincent@wanadoo.fr
Reported-by: Stephen Rothwell &lt;sfr@canb.auug.org.au&gt;
Reported-by: kernel test robot &lt;lkp@intel.com&gt;
Signed-off-by: Marc Kleine-Budde &lt;mkl@pengutronix.de&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf</title>
<updated>2022-12-14T03:32:53+00:00</updated>
<author>
<name>Jakub Kicinski</name>
<email>kuba@kernel.org</email>
</author>
<published>2022-12-14T03:32:52+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=7ae9888d6e1ce4062d27367a28e46a26270a3e52'/>
<id>7ae9888d6e1ce4062d27367a28e46a26270a3e52</id>
<content type='text'>
Pablo Neira Ayuso says:

====================
Netfilter/IPVS fixes for net

1) Fix NAT IPv6 flowtable hardware offload, from Qingfang DENG.

2) Add a safety check to IPVS socket option interface report a
   warning if unsupported command is seen, this. From Li Qiong.

3) Document SCTP conntrack timeouts, from Sriram Yagnaraman.

* git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
  netfilter: conntrack: document sctp timeouts
  ipvs: add a 'default' case in do_ip_vs_set_ctl()
  netfilter: flowtable: really fix NAT IPv6 offload
====================

Link: https://lore.kernel.org/r/20221213140923.154594-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski &lt;kuba@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pablo Neira Ayuso says:

====================
Netfilter/IPVS fixes for net

1) Fix NAT IPv6 flowtable hardware offload, from Qingfang DENG.

2) Add a safety check to IPVS socket option interface report a
   warning if unsupported command is seen, this. From Li Qiong.

3) Document SCTP conntrack timeouts, from Sriram Yagnaraman.

* git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
  netfilter: conntrack: document sctp timeouts
  ipvs: add a 'default' case in do_ip_vs_set_ctl()
  netfilter: flowtable: really fix NAT IPv6 offload
====================

Link: https://lore.kernel.org/r/20221213140923.154594-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski &lt;kuba@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>netfilter: conntrack: document sctp timeouts</title>
<updated>2022-12-13T11:25:45+00:00</updated>
<author>
<name>Sriram Yagnaraman</name>
<email>sriram.yagnaraman@est.tech</email>
</author>
<published>2022-12-12T10:07:05+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=f9645abe4255bd79e4c63799634c996dd53db321'/>
<id>f9645abe4255bd79e4c63799634c996dd53db321</id>
<content type='text'>
Exposed through sysctl, update documentation to describe sctp states and
their default timeouts.

Signed-off-by: Sriram Yagnaraman &lt;sriram.yagnaraman@est.tech&gt;
Signed-off-by: Pablo Neira Ayuso &lt;pablo@netfilter.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Exposed through sysctl, update documentation to describe sctp states and
their default timeouts.

Signed-off-by: Sriram Yagnaraman &lt;sriram.yagnaraman@est.tech&gt;
Signed-off-by: Pablo Neira Ayuso &lt;pablo@netfilter.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next</title>
<updated>2022-12-12T22:45:36+00:00</updated>
<author>
<name>Jakub Kicinski</name>
<email>kuba@kernel.org</email>
</author>
<published>2022-12-12T22:45:36+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=95d1815f0970d2f8e980a9a53dd0bf215de4d90a'/>
<id>95d1815f0970d2f8e980a9a53dd0bf215de4d90a</id>
<content type='text'>
Pablo Neira Ayuso says:

====================
Netfilter/IPVS updates for net-next

1) Incorrect error check in nft_expr_inner_parse(), from Dan Carpenter.

2) Add DATA_SENT state to SCTP connection tracking helper, from
   Sriram Yagnaraman.

3) Consolidate nf_confirm for ipv4 and ipv6, from Florian Westphal.

4) Add bitmask support for ipset, from Vishwanath Pai.

5) Handle icmpv6 redirects as RELATED, from Florian Westphal.

6) Add WARN_ON_ONCE() to impossible case in flowtable datapath,
   from Li Qiong.

7) A large batch of IPVS updates to replace timer-based estimators by
   kthreads to scale up wrt. CPUs and workload (millions of estimators).

Julian Anastasov says:

	This patchset implements stats estimation in kthread context.
It replaces the code that runs on single CPU in timer context every 2
seconds and causing latency splats as shown in reports [1], [2], [3].
The solution targets setups with thousands of IPVS services,
destinations and multi-CPU boxes.

	Spread the estimation on multiple (configured) CPUs and multiple
time slots (timer ticks) by using multiple chains organized under RCU
rules.  When stats are not needed, it is recommended to use
run_estimation=0 as already implemented before this change.

RCU Locking:

- As stats are now RCU-locked, tot_stats, svc and dest which
hold estimator structures are now always freed from RCU
callback. This ensures RCU grace period after the
ip_vs_stop_estimator() call.

Kthread data:

- every kthread works over its own data structure and all
such structures are attached to array. For now we limit
kthreads depending on the number of CPUs.

- even while there can be a kthread structure, its task
may not be running, eg. before first service is added or
while the sysctl var is set to an empty cpulist or
when run_estimation is set to 0 to disable the estimation.

- the allocated kthread context may grow from 1 to 50
allocated structures for timer ticks which saves memory for
setups with small number of estimators

- a task and its structure may be released if all
estimators are unlinked from its chains, leaving the
slot in the array empty

- every kthread data structure allows limited number
of estimators. Kthread 0 is also used to initially
calculate the max number of estimators to allow in every
chain considering a sub-100 microsecond cond_resched
rate. This number can be from 1 to hundreds.

- kthread 0 has an additional job of optimizing the
adding of estimators: they are first added in
temp list (est_temp_list) and later kthread 0
distributes them to other kthreads. The optimization
is based on the fact that newly added estimator
should be estimated after 2 seconds, so we have the
time to offload the adding to chain from controlling
process to kthread 0.

- to add new estimators we use the last added kthread
context (est_add_ktid). The new estimators are linked to
the chains just before the estimated one, based on add_row.
This ensures their estimation will start after 2 seconds.
If estimators are added in bursts, common case if all
services and dests are initially configured, we may
spread the estimators to more chains and as result,
reducing the initial delay below 2 seconds.

Many thanks to Jiri Wiesner for his valuable comments
and for spending a lot of time reviewing and testing
the changes on different platforms with 48-256 CPUs and
1-8 NUMA nodes under different cpufreq governors.

The new IPVS estimators do not use workqueue infrastructure
because:

- The estimation can take long time when using multiple IPVS rules (eg.
  millions estimator structures) and especially when box has multiple
  CPUs due to the for_each_possible_cpu usage that expects packets from
  any CPU. With est_nice sysctl we have more control how to prioritize the
  estimation kthreads compared to other processes/kthreads that have
  latency requirements (such as servers). As a benefit, we can see these
  kthreads in top and decide if we will need some further control to limit
  their CPU usage (max number of structure to estimate per kthread).

- with kthreads we run code that is read-mostly, no write/lock
  operations to process the estimators in 2-second intervals.

- work items are one-shot: as estimators are processed every
  2 seconds, they need to be re-added every time. This again
  loads the timers (add_timer) if we use delayed works, as there are
  no kthreads to do the timings.

[1] Report from Yunhong Jiang:
    https://lore.kernel.org/netdev/D25792C1-1B89-45DE-9F10-EC350DC04ADC@gmail.com/
[2] https://marc.info/?l=linux-virtual-server&amp;m=159679809118027&amp;w=2
[3] Report from Dust:
    https://archive.linuxvirtualserver.org/html/lvs-devel/2020-12/msg00000.html

* git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next:
  ipvs: run_estimation should control the kthread tasks
  ipvs: add est_cpulist and est_nice sysctl vars
  ipvs: use kthreads for stats estimation
  ipvs: use u64_stats_t for the per-cpu counters
  ipvs: use common functions for stats allocation
  ipvs: add rcu protection to stats
  netfilter: flowtable: add a 'default' case to flowtable datapath
  netfilter: conntrack: set icmpv6 redirects as RELATED
  netfilter: ipset: Add support for new bitmask parameter
  netfilter: conntrack: merge ipv4+ipv6 confirm functions
  netfilter: conntrack: add sctp DATA_SENT state
  netfilter: nft_inner: fix IS_ERR() vs NULL check
====================

Link: https://lore.kernel.org/r/20221211101204.1751-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski &lt;kuba@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Pablo Neira Ayuso says:

====================
Netfilter/IPVS updates for net-next

1) Incorrect error check in nft_expr_inner_parse(), from Dan Carpenter.

2) Add DATA_SENT state to SCTP connection tracking helper, from
   Sriram Yagnaraman.

3) Consolidate nf_confirm for ipv4 and ipv6, from Florian Westphal.

4) Add bitmask support for ipset, from Vishwanath Pai.

5) Handle icmpv6 redirects as RELATED, from Florian Westphal.

6) Add WARN_ON_ONCE() to impossible case in flowtable datapath,
   from Li Qiong.

7) A large batch of IPVS updates to replace timer-based estimators by
   kthreads to scale up wrt. CPUs and workload (millions of estimators).

Julian Anastasov says:

	This patchset implements stats estimation in kthread context.
It replaces the code that runs on single CPU in timer context every 2
seconds and causing latency splats as shown in reports [1], [2], [3].
The solution targets setups with thousands of IPVS services,
destinations and multi-CPU boxes.

	Spread the estimation on multiple (configured) CPUs and multiple
time slots (timer ticks) by using multiple chains organized under RCU
rules.  When stats are not needed, it is recommended to use
run_estimation=0 as already implemented before this change.

RCU Locking:

- As stats are now RCU-locked, tot_stats, svc and dest which
hold estimator structures are now always freed from RCU
callback. This ensures RCU grace period after the
ip_vs_stop_estimator() call.

Kthread data:

- every kthread works over its own data structure and all
such structures are attached to array. For now we limit
kthreads depending on the number of CPUs.

- even while there can be a kthread structure, its task
may not be running, eg. before first service is added or
while the sysctl var is set to an empty cpulist or
when run_estimation is set to 0 to disable the estimation.

- the allocated kthread context may grow from 1 to 50
allocated structures for timer ticks which saves memory for
setups with small number of estimators

- a task and its structure may be released if all
estimators are unlinked from its chains, leaving the
slot in the array empty

- every kthread data structure allows limited number
of estimators. Kthread 0 is also used to initially
calculate the max number of estimators to allow in every
chain considering a sub-100 microsecond cond_resched
rate. This number can be from 1 to hundreds.

- kthread 0 has an additional job of optimizing the
adding of estimators: they are first added in
temp list (est_temp_list) and later kthread 0
distributes them to other kthreads. The optimization
is based on the fact that newly added estimator
should be estimated after 2 seconds, so we have the
time to offload the adding to chain from controlling
process to kthread 0.

- to add new estimators we use the last added kthread
context (est_add_ktid). The new estimators are linked to
the chains just before the estimated one, based on add_row.
This ensures their estimation will start after 2 seconds.
If estimators are added in bursts, common case if all
services and dests are initially configured, we may
spread the estimators to more chains and as result,
reducing the initial delay below 2 seconds.

Many thanks to Jiri Wiesner for his valuable comments
and for spending a lot of time reviewing and testing
the changes on different platforms with 48-256 CPUs and
1-8 NUMA nodes under different cpufreq governors.

The new IPVS estimators do not use workqueue infrastructure
because:

- The estimation can take long time when using multiple IPVS rules (eg.
  millions estimator structures) and especially when box has multiple
  CPUs due to the for_each_possible_cpu usage that expects packets from
  any CPU. With est_nice sysctl we have more control how to prioritize the
  estimation kthreads compared to other processes/kthreads that have
  latency requirements (such as servers). As a benefit, we can see these
  kthreads in top and decide if we will need some further control to limit
  their CPU usage (max number of structure to estimate per kthread).

- with kthreads we run code that is read-mostly, no write/lock
  operations to process the estimators in 2-second intervals.

- work items are one-shot: as estimators are processed every
  2 seconds, they need to be re-added every time. This again
  loads the timers (add_timer) if we use delayed works, as there are
  no kthreads to do the timings.

[1] Report from Yunhong Jiang:
    https://lore.kernel.org/netdev/D25792C1-1B89-45DE-9F10-EC350DC04ADC@gmail.com/
[2] https://marc.info/?l=linux-virtual-server&amp;m=159679809118027&amp;w=2
[3] Report from Dust:
    https://archive.linuxvirtualserver.org/html/lvs-devel/2020-12/msg00000.html

* git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next:
  ipvs: run_estimation should control the kthread tasks
  ipvs: add est_cpulist and est_nice sysctl vars
  ipvs: use kthreads for stats estimation
  ipvs: use u64_stats_t for the per-cpu counters
  ipvs: use common functions for stats allocation
  ipvs: add rcu protection to stats
  netfilter: flowtable: add a 'default' case to flowtable datapath
  netfilter: conntrack: set icmpv6 redirects as RELATED
  netfilter: ipset: Add support for new bitmask parameter
  netfilter: conntrack: merge ipv4+ipv6 confirm functions
  netfilter: conntrack: add sctp DATA_SENT state
  netfilter: nft_inner: fix IS_ERR() vs NULL check
====================

Link: https://lore.kernel.org/r/20221211101204.1751-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski &lt;kuba@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Documentation: devlink: add devlink documentation for the etas_es58x driver</title>
<updated>2022-12-12T10:39:13+00:00</updated>
<author>
<name>Vincent Mailhol</name>
<email>mailhol.vincent@wanadoo.fr</email>
</author>
<published>2022-11-30T17:46:58+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=9f63f96aac92751e85f8313f59f2c867b88ea453'/>
<id>9f63f96aac92751e85f8313f59f2c867b88ea453</id>
<content type='text'>
List all the version information reported by the etas_es58x driver
through devlink. Also, update MAINTAINERS with the newly created file.

Signed-off-by: Vincent Mailhol &lt;mailhol.vincent@wanadoo.fr&gt;
Link: https://lore.kernel.org/all/20221130174658.29282-8-mailhol.vincent@wanadoo.fr
[mkl: fixed version information table: "bl" -&gt; "fw.bootloader"
Signed-off-by: Marc Kleine-Budde &lt;mkl@pengutronix.de&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
List all the version information reported by the etas_es58x driver
through devlink. Also, update MAINTAINERS with the newly created file.

Signed-off-by: Vincent Mailhol &lt;mailhol.vincent@wanadoo.fr&gt;
Link: https://lore.kernel.org/all/20221130174658.29282-8-mailhol.vincent@wanadoo.fr
[mkl: fixed version information table: "bl" -&gt; "fw.bootloader"
Signed-off-by: Marc Kleine-Budde &lt;mkl@pengutronix.de&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>net: devlink: add DEVLINK_INFO_VERSION_GENERIC_FW_BOOTLOADER</title>
<updated>2022-12-12T10:39:13+00:00</updated>
<author>
<name>Vincent Mailhol</name>
<email>mailhol.vincent@wanadoo.fr</email>
</author>
<published>2022-11-30T17:46:55+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=01d80532295cd359dc43e6bd71860d5515f84372'/>
<id>01d80532295cd359dc43e6bd71860d5515f84372</id>
<content type='text'>
As discussed in [1], abbreviating the bootloader to "bl" might not be
well understood. Instead, a bootloader technically being a firmware,
name it "fw.bootloader".

Add a new macro to devlink.h to formalize this new info attribute name
and update the documentation.

[1] https://lore.kernel.org/netdev/20221128142723.2f826d20@kernel.org/

Suggested-by: Jakub Kicinski &lt;kuba@kernel.org&gt;
Signed-off-by: Vincent Mailhol &lt;mailhol.vincent@wanadoo.fr&gt;
Link: https://lore.kernel.org/all/20221130174658.29282-5-mailhol.vincent@wanadoo.fr
Signed-off-by: Marc Kleine-Budde &lt;mkl@pengutronix.de&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
As discussed in [1], abbreviating the bootloader to "bl" might not be
well understood. Instead, a bootloader technically being a firmware,
name it "fw.bootloader".

Add a new macro to devlink.h to formalize this new info attribute name
and update the documentation.

[1] https://lore.kernel.org/netdev/20221128142723.2f826d20@kernel.org/

Suggested-by: Jakub Kicinski &lt;kuba@kernel.org&gt;
Signed-off-by: Vincent Mailhol &lt;mailhol.vincent@wanadoo.fr&gt;
Link: https://lore.kernel.org/all/20221130174658.29282-5-mailhol.vincent@wanadoo.fr
Signed-off-by: Marc Kleine-Budde &lt;mkl@pengutronix.de&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ipvs: run_estimation should control the kthread tasks</title>
<updated>2022-12-10T21:44:43+00:00</updated>
<author>
<name>Julian Anastasov</name>
<email>ja@ssi.bg</email>
</author>
<published>2022-11-22T16:46:04+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=144361c1949f227df9244302da02c258a363b674'/>
<id>144361c1949f227df9244302da02c258a363b674</id>
<content type='text'>
Change the run_estimation flag to start/stop the kthread tasks.

Signed-off-by: Julian Anastasov &lt;ja@ssi.bg&gt;
Cc: yunhong-cgl jiang &lt;xintian1976@gmail.com&gt;
Cc: "dust.li" &lt;dust.li@linux.alibaba.com&gt;
Reviewed-by: Jiri Wiesner &lt;jwiesner@suse.de&gt;
Signed-off-by: Pablo Neira Ayuso &lt;pablo@netfilter.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Change the run_estimation flag to start/stop the kthread tasks.

Signed-off-by: Julian Anastasov &lt;ja@ssi.bg&gt;
Cc: yunhong-cgl jiang &lt;xintian1976@gmail.com&gt;
Cc: "dust.li" &lt;dust.li@linux.alibaba.com&gt;
Reviewed-by: Jiri Wiesner &lt;jwiesner@suse.de&gt;
Signed-off-by: Pablo Neira Ayuso &lt;pablo@netfilter.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ipvs: add est_cpulist and est_nice sysctl vars</title>
<updated>2022-12-10T21:44:43+00:00</updated>
<author>
<name>Julian Anastasov</name>
<email>ja@ssi.bg</email>
</author>
<published>2022-11-22T16:46:03+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=f0be83d5421718ead31707b6ece34cf77d411c00'/>
<id>f0be83d5421718ead31707b6ece34cf77d411c00</id>
<content type='text'>
Allow the kthreads for stats to be configured for
specific cpulist (isolation) and niceness (scheduling
priority).

Signed-off-by: Julian Anastasov &lt;ja@ssi.bg&gt;
Cc: yunhong-cgl jiang &lt;xintian1976@gmail.com&gt;
Cc: "dust.li" &lt;dust.li@linux.alibaba.com&gt;
Reviewed-by: Jiri Wiesner &lt;jwiesner@suse.de&gt;
Signed-off-by: Pablo Neira Ayuso &lt;pablo@netfilter.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Allow the kthreads for stats to be configured for
specific cpulist (isolation) and niceness (scheduling
priority).

Signed-off-by: Julian Anastasov &lt;ja@ssi.bg&gt;
Cc: yunhong-cgl jiang &lt;xintian1976@gmail.com&gt;
Cc: "dust.li" &lt;dust.li@linux.alibaba.com&gt;
Reviewed-by: Jiri Wiesner &lt;jwiesner@suse.de&gt;
Signed-off-by: Pablo Neira Ayuso &lt;pablo@netfilter.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'ipsec-next-2022-12-09' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next</title>
<updated>2022-12-10T04:06:35+00:00</updated>
<author>
<name>Jakub Kicinski</name>
<email>kuba@kernel.org</email>
</author>
<published>2022-12-10T04:06:34+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=dd8b3a802b64adf059a49a68f1bdca7846e492fc'/>
<id>dd8b3a802b64adf059a49a68f1bdca7846e492fc</id>
<content type='text'>
Steffen Klassert says:

====================
ipsec-next 2022-12-09

1) Add xfrm packet offload core API.
   From Leon Romanovsky.

2) Add xfrm packet offload support for mlx5.
   From Leon Romanovsky and Raed Salem.

3) Fix a typto in a error message.
   From Colin Ian King.

* tag 'ipsec-next-2022-12-09' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next: (38 commits)
  xfrm: Fix spelling mistake "oflload" -&gt; "offload"
  net/mlx5e: Open mlx5 driver to accept IPsec packet offload
  net/mlx5e: Handle ESN update events
  net/mlx5e: Handle hardware IPsec limits events
  net/mlx5e: Update IPsec soft and hard limits
  net/mlx5e: Store all XFRM SAs in Xarray
  net/mlx5e: Provide intermediate pointer to access IPsec struct
  net/mlx5e: Skip IPsec encryption for TX path without matching policy
  net/mlx5e: Add statistics for Rx/Tx IPsec offloaded flows
  net/mlx5e: Improve IPsec flow steering autogroup
  net/mlx5e: Configure IPsec packet offload flow steering
  net/mlx5e: Use same coding pattern for Rx and Tx flows
  net/mlx5e: Add XFRM policy offload logic
  net/mlx5e: Create IPsec policy offload tables
  net/mlx5e: Generalize creation of default IPsec miss group and rule
  net/mlx5e: Group IPsec miss handles into separate struct
  net/mlx5e: Make clear what IPsec rx_err does
  net/mlx5e: Flatten the IPsec RX add rule path
  net/mlx5e: Refactor FTE setup code to be more clear
  net/mlx5e: Move IPsec flow table creation to separate function
  ...
====================

Link: https://lore.kernel.org/r/20221209093310.4018731-1-steffen.klassert@secunet.com
Signed-off-by: Jakub Kicinski &lt;kuba@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Steffen Klassert says:

====================
ipsec-next 2022-12-09

1) Add xfrm packet offload core API.
   From Leon Romanovsky.

2) Add xfrm packet offload support for mlx5.
   From Leon Romanovsky and Raed Salem.

3) Fix a typto in a error message.
   From Colin Ian King.

* tag 'ipsec-next-2022-12-09' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next: (38 commits)
  xfrm: Fix spelling mistake "oflload" -&gt; "offload"
  net/mlx5e: Open mlx5 driver to accept IPsec packet offload
  net/mlx5e: Handle ESN update events
  net/mlx5e: Handle hardware IPsec limits events
  net/mlx5e: Update IPsec soft and hard limits
  net/mlx5e: Store all XFRM SAs in Xarray
  net/mlx5e: Provide intermediate pointer to access IPsec struct
  net/mlx5e: Skip IPsec encryption for TX path without matching policy
  net/mlx5e: Add statistics for Rx/Tx IPsec offloaded flows
  net/mlx5e: Improve IPsec flow steering autogroup
  net/mlx5e: Configure IPsec packet offload flow steering
  net/mlx5e: Use same coding pattern for Rx and Tx flows
  net/mlx5e: Add XFRM policy offload logic
  net/mlx5e: Create IPsec policy offload tables
  net/mlx5e: Generalize creation of default IPsec miss group and rule
  net/mlx5e: Group IPsec miss handles into separate struct
  net/mlx5e: Make clear what IPsec rx_err does
  net/mlx5e: Flatten the IPsec RX add rule path
  net/mlx5e: Refactor FTE setup code to be more clear
  net/mlx5e: Move IPsec flow table creation to separate function
  ...
====================

Link: https://lore.kernel.org/r/20221209093310.4018731-1-steffen.klassert@secunet.com
Signed-off-by: Jakub Kicinski &lt;kuba@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>net_tstamp: add SOF_TIMESTAMPING_OPT_ID_TCP</title>
<updated>2022-12-09T03:49:21+00:00</updated>
<author>
<name>Willem de Bruijn</name>
<email>willemb@google.com</email>
</author>
<published>2022-12-07T14:37:01+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=b534dc46c8ae0165b1b2509be24dbea4fa9c4011'/>
<id>b534dc46c8ae0165b1b2509be24dbea4fa9c4011</id>
<content type='text'>
Add an option to initialize SOF_TIMESTAMPING_OPT_ID for TCP from
write_seq sockets instead of snd_una.

This should have been the behavior from the start. Because processes
may now exist that rely on the established behavior, do not change
behavior of the existing option, but add the right behavior with a new
flag. It is encouraged to always set SOF_TIMESTAMPING_OPT_ID_TCP on
stream sockets along with the existing SOF_TIMESTAMPING_OPT_ID.

Intuitively the contract is that the counter is zero after the
setsockopt, so that the next write N results in a notification for
the last byte N - 1.

On idle sockets snd_una == write_seq and this holds for both. But on
sockets with data in transmission, snd_una records the unacked offset
in the stream. This depends on the ACK response from the peer. A
process cannot learn this in a race free manner (ioctl SIOCOUTQ is one
racy approach).

write_seq records the offset at the last byte written by the process.
This is a better starting point. It matches the intuitive contract in
all circumstances, unaffected by external behavior.

The new timestamp flag necessitates increasing sk_tsflags to 32 bits.
Move the field in struct sock to avoid growing the socket (for some
common CONFIG variants). The UAPI interface so_timestamping.flags is
already int, so 32 bits wide.

Reported-by: Sotirios Delimanolis &lt;sotodel@meta.com&gt;
Signed-off-by: Willem de Bruijn &lt;willemb@google.com&gt;
Link: https://lore.kernel.org/r/20221207143701.29861-1-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski &lt;kuba@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Add an option to initialize SOF_TIMESTAMPING_OPT_ID for TCP from
write_seq sockets instead of snd_una.

This should have been the behavior from the start. Because processes
may now exist that rely on the established behavior, do not change
behavior of the existing option, but add the right behavior with a new
flag. It is encouraged to always set SOF_TIMESTAMPING_OPT_ID_TCP on
stream sockets along with the existing SOF_TIMESTAMPING_OPT_ID.

Intuitively the contract is that the counter is zero after the
setsockopt, so that the next write N results in a notification for
the last byte N - 1.

On idle sockets snd_una == write_seq and this holds for both. But on
sockets with data in transmission, snd_una records the unacked offset
in the stream. This depends on the ACK response from the peer. A
process cannot learn this in a race free manner (ioctl SIOCOUTQ is one
racy approach).

write_seq records the offset at the last byte written by the process.
This is a better starting point. It matches the intuitive contract in
all circumstances, unaffected by external behavior.

The new timestamp flag necessitates increasing sk_tsflags to 32 bits.
Move the field in struct sock to avoid growing the socket (for some
common CONFIG variants). The UAPI interface so_timestamping.flags is
already int, so 32 bits wide.

Reported-by: Sotirios Delimanolis &lt;sotodel@meta.com&gt;
Signed-off-by: Willem de Bruijn &lt;willemb@google.com&gt;
Link: https://lore.kernel.org/r/20221207143701.29861-1-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski &lt;kuba@kernel.org&gt;
</pre>
</div>
</content>
</entry>
</feed>
