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20 months agovirtio/vsock: allocate multiple skbuffs on tx
Arseniy Krasnov [Sat, 25 Mar 2023 22:03:52 +0000 (01:03 +0300)]
virtio/vsock: allocate multiple skbuffs on tx

This adds small optimization for tx path: instead of allocating single
skbuff on every call to transport, allocate multiple skbuff's until
credit space allows, thus trying to send as much as possible data without
return to af_vsock.c.

Signed-off-by: Arseniy Krasnov <AVKrasnov@sberdevices.ru>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
20 months agoMerge tag 'linux-can-next-for-6.4-20230327' of git://git.kernel.org/pub/scm/linux...
Jakub Kicinski [Tue, 28 Mar 2023 02:55:10 +0000 (19:55 -0700)]
Merge tag 'linux-can-next-for-6.4-20230327' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next

Marc Kleine-Budde says:

====================
pull-request: can-next 2023-03-27

The first 2 patches by Geert Uytterhoeven add transceiver support and
improve the error messages in the rcar_canfd driver.

Cai Huoqing contributes 3 patches which remove a redundant call to
pci_clear_master() in the c_can, ctucanfd and kvaser_pciefd driver.

Frank Jungclaus's patch replaces the struct esd_usb_msg with a union
in the esd_usb driver to improve readability.

Markus Schneider-Pargmann contributes 5 patches to improve the
performance in the m_can driver, especially for SPI attached
controllers like the tcan4x5x.

* tag 'linux-can-next-for-6.4-20230327' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next:
  can: m_can: Keep interrupts enabled during peripheral read
  can: m_can: Disable unused interrupts
  can: m_can: Remove double interrupt enable
  can: m_can: Always acknowledge all interrupts
  can: m_can: Remove repeated check for is_peripheral
  can: esd_usb: Improve code readability by means of replacing struct esd_usb_msg with a union
  can: kvaser_pciefd: Remove redundant pci_clear_master
  can: ctucanfd: Remove redundant pci_clear_master
  can: c_can: Remove redundant pci_clear_master
  can: rcar_canfd: Improve error messages
  can: rcar_canfd: Add transceiver support
====================

Link: https://lore.kernel.org/r/20230327073354.1003134-1-mkl@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
20 months agoMerge branch 'add-tx-push-buf-len-param-to-ethtool'
Jakub Kicinski [Tue, 28 Mar 2023 02:50:00 +0000 (19:50 -0700)]
Merge branch 'add-tx-push-buf-len-param-to-ethtool'

Shay Agroskin says:

====================
Add tx push buf len param to ethtool

This patchset adds a new sub-configuration to ethtool get/set queue
params (ethtool -g) called 'tx-push-buf-len'.

This configuration specifies the maximum number of bytes of a
transmitted packet a driver can push directly to the underlying
device ('push' mode). The motivation for pushing some of the bytes to
the device has the advantages of

- Allowing a smart device to take fast actions based on the packet's
  header
- Reducing latency for small packets that can be copied completely into
  the device

This new param is practically similar to tx-copybreak value that can be
set using ethtool's tunable but conceptually serves a different purpose.
While tx-copybreak is used to reduce the overhead of DMA mapping and
makes no sense to use if less than the whole segment gets copied,
tx-push-buf-len allows to improve performance by analyzing the packet's
data (usually headers) before performing the DMA operation.

The configuration can be queried and set using the commands:

    $ ethtool -g [interface]

    # ethtool -G [interface] tx-push-buf-len [number of bytes]

This patchset also adds support for the new configuration in ENA driver
for which this parameter ensures efficient resources management on the
device side.
====================

Link: https://lore.kernel.org/r/20230323163610.1281468-1-shayagr@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
20 months agonet: ena: Advertise TX push support
Shay Agroskin [Thu, 23 Mar 2023 16:36:10 +0000 (18:36 +0200)]
net: ena: Advertise TX push support

LLQ is auto enabled by the device and disabling it isn't supported on
new ENA generations while on old ones causes sub-optimal performance.

This patch adds advertisement of push-mode when LLQ mode is used, but
rejects an attempt to modify it.

Reviewed-by: Michal Kubiak <michal.kubiak@intel.com>
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
20 months agonet: ena: Add support to changing tx_push_buf_len
Shay Agroskin [Thu, 23 Mar 2023 16:36:09 +0000 (18:36 +0200)]
net: ena: Add support to changing tx_push_buf_len

The ENA driver allows for two distinct values for the number of bytes
of the packet's payload that can be written directly to the device.

For a value of 224 the driver turns on Large LLQ Header mode in which
the first 224 of the packet's payload are written to the LLQ.

Reviewed-by: Michal Kubiak <michal.kubiak@intel.com>
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
20 months agonet: ena: Recalculate TX state variables every device reset
Shay Agroskin [Thu, 23 Mar 2023 16:36:08 +0000 (18:36 +0200)]
net: ena: Recalculate TX state variables every device reset

With the ability to modify LLQ entry size, the size of packet's
payload that can be written directly to the device changes.
This patch makes the driver recalculate this information every device
negotiation (also called device reset).

Reviewed-by: Michal Kubiak <michal.kubiak@intel.com>
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
20 months agonet: ena: Add an option to configure large LLQ headers
David Arinzon [Thu, 23 Mar 2023 16:36:07 +0000 (18:36 +0200)]
net: ena: Add an option to configure large LLQ headers

Allow configuring the device with large LLQ headers. The Low Latency
Queue (LLQ) allows the driver to write the first N bytes of the packet,
along with the rest of the TX descriptors directly into device (N can be
either 96 or 224 for large LLQ headers configuration).

Having L4 TCP/UDP headers contained in the first 96 bytes of the packet
is required to get maximum performance from the device.

Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Michal Kubiak <michal.kubiak@intel.com>
Signed-off-by: David Arinzon <darinzon@amazon.com>
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
20 months agonet: ena: Make few cosmetic preparations to support large LLQ
Shay Agroskin [Thu, 23 Mar 2023 16:36:06 +0000 (18:36 +0200)]
net: ena: Make few cosmetic preparations to support large LLQ

Move ena_calc_io_queue_size() implementation closer to the file's
beginning so that it can be later called from ena_device_init()
function without adding a function declaration.

Also add an empty line at some spots to separate logical blocks in
funcitons.

Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Michal Kubiak <michal.kubiak@intel.com>
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
20 months agoethtool: Add support for configuring tx_push_buf_len
Shay Agroskin [Thu, 23 Mar 2023 16:36:05 +0000 (18:36 +0200)]
ethtool: Add support for configuring tx_push_buf_len

This attribute, which is part of ethtool's ring param configuration
allows the user to specify the maximum number of the packet's payload
that can be written directly to the device.

Example usage:
    # ethtool -G [interface] tx-push-buf-len [number of bytes]

Co-developed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
20 months agonetlink: Add a macro to set policy message with format string
Shay Agroskin [Thu, 23 Mar 2023 16:36:04 +0000 (18:36 +0200)]
netlink: Add a macro to set policy message with format string

Similar to NL_SET_ERR_MSG_FMT, add a macro which sets netlink policy
error message with a format string.

Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
20 months agoqed: remove unused num_ooo_add_to_peninsula variable
Tom Rix [Sun, 26 Mar 2023 00:17:33 +0000 (20:17 -0400)]
qed: remove unused num_ooo_add_to_peninsula variable

clang with W=1 reports
drivers/net/ethernet/qlogic/qed/qed_ll2.c:649:6: error: variable
  'num_ooo_add_to_peninsula' set but not used [-Werror,-Wunused-but-set-variable]
        u32 num_ooo_add_to_peninsula = 0, cid;
            ^
This variable is not used so remove it.

Signed-off-by: Tom Rix <trix@redhat.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230326001733.1343274-1-trix@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
20 months agonet: introduce a config option to tweak MAX_SKB_FRAGS
Eric Dumazet [Thu, 23 Mar 2023 16:28:42 +0000 (09:28 -0700)]
net: introduce a config option to tweak MAX_SKB_FRAGS

Currently, MAX_SKB_FRAGS value is 17.

For standard tcp sendmsg() traffic, no big deal because tcp_sendmsg()
attempts order-3 allocations, stuffing 32768 bytes per frag.

But with zero copy, we use order-0 pages.

For BIG TCP to show its full potential, we add a config option
to be able to fit up to 45 segments per skb.

This is also needed for BIG TCP rx zerocopy, as zerocopy currently
does not support skbs with frag list.

We have used MAX_SKB_FRAGS=45 value for years at Google before
we deployed 4K MTU, with no adverse effect, other than
a recent issue in mlx4, fixed in commit 26782aad00cc
("net/mlx4: MLX4_TX_BOUNCE_BUFFER_SIZE depends on MAX_SKB_FRAGS")

Back then, goal was to be able to receive full size (64KB) GRO
packets without the frag_list overhead.

Note that /proc/sys/net/core/max_skb_frags can also be used to limit
the number of fragments TCP can use in tx packets.

By default we keep the old/legacy value of 17 until we get
more coverage for the updated values.

Sizes of struct skb_shared_info on 64bit arches

MAX_SKB_FRAGS | sizeof(struct skb_shared_info):
==============================================
         17     320
         21     320+64  = 384
         25     320+128 = 448
         29     320+192 = 512
         33     320+256 = 576
         37     320+320 = 640
         41     320+384 = 704
         45     320+448 = 768

This inflation might cause problems for drivers assuming they could pack
both the incoming packet (for MTU=1500) and skb_shared_info in half a page,
using build_skb().

v3: fix build error when CONFIG_NET=n
v2: fix two build errors assuming MAX_SKB_FRAGS was "unsigned long"

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Jason Xing <kerneljasonxing@gmail.com>
Link: https://lore.kernel.org/r/20230323162842.1935061-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
20 months agodev_ioctl: fix a W=1 warning
Heiner Kallweit [Fri, 24 Mar 2023 22:11:49 +0000 (23:11 +0100)]
dev_ioctl: fix a W=1 warning

This fixes the following warning when compiled with GCC 12.2.0 and W=1.

net/core/dev_ioctl.c:475: warning: Function parameter or member 'data'
not described in 'dev_ioctl'

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agonet: phy: bcm7xxx: use devm_clk_get_optional_enabled to simplify the code
Heiner Kallweit [Fri, 24 Mar 2023 21:23:58 +0000 (22:23 +0100)]
net: phy: bcm7xxx: use devm_clk_get_optional_enabled to simplify the code

Use devm_clk_get_optional_enabled to simplify the code.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agotools: ynl: default to treating enums as flags for mask generation
Jakub Kicinski [Fri, 24 Mar 2023 19:03:56 +0000 (12:03 -0700)]
tools: ynl: default to treating enums as flags for mask generation

I was a bit too optimistic in commit bf51d27704c9 ("tools: ynl: fix
get_mask utility routine"), not every mask we use is necessarily
coming from an enum of type "flags". We also allow flipping an
enum into flags on per-attribute basis. That's done by
the 'enum-as-flags' property of an attribute.

Restore this functionality, it's not currently used by any in-tree
family.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agoselftests: tls: add a test for queuing data before setting the ULP
Jakub Kicinski [Fri, 24 Mar 2023 18:17:57 +0000 (11:17 -0700)]
selftests: tls: add a test for queuing data before setting the ULP

Other tests set up the connection fully on both ends before
communicating any data. Add a test which will queue up TLS
records to TCP before the TLS ULP is installed.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agotools: ynl: Add missing types to encode/decode
Michal Michalik [Fri, 24 Mar 2023 17:52:58 +0000 (18:52 +0100)]
tools: ynl: Add missing types to encode/decode

While testing the tool I noticed we miss the u16 type on payload create.
On the code inspection it turned out we miss also u64 - add them.

We also miss the decoding of u16 despite the fact `NlAttr` class
supports it - add it.

Signed-off-by: Michal Michalik <michal.michalik@intel.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agoMerge branch 'sunhme-cleanups'
David S. Miller [Mon, 27 Mar 2023 07:41:57 +0000 (08:41 +0100)]
Merge branch 'sunhme-cleanups'

Sean Anderson says:

====================
net: sunhme: Probe/IRQ cleanups

Well, I've had these patches kicking around in my tree since last
October, so I guess I had better get around to posting them. This
series is mainly a cleanup/consolidation of the probe process, with
some interrupt changes as well.  Some of these changes are SBUS- (AKA
SPARC-) specific, so this should really get some testing there as well
to ensure nothing breaks. I've CC'd a few SPARC mailing lists in hopes
that someone there can try this out. I also have an SBUS card I
ordered by mistake if anyone has a SPARC computer but lacks this card.

Changes in v4:
- Tweak variable order for yuletide
- Move uninitialized return to its own commit
- Use correct SBUS/PCI accessors
- Rework hme_version to set the default in pci/sbus_probe and override it (if
  necessary) in common_probe

Changes in v3:
- Incorperate a fix from another series into this commit

Changes in v2:
- Move happy_meal_begin_auto_negotiation earlier and remove forward declaration
- Make some more includes common
- Clean up mac address init
- Inline error returns
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agonet: sunhme: Consolidate common probe tasks
Sean Anderson [Fri, 24 Mar 2023 17:51:36 +0000 (13:51 -0400)]
net: sunhme: Consolidate common probe tasks

Most of the second half of the PCI/SBUS probe functions are the same.
Consolidate them into a common function.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agonet: sunhme: Inline error returns
Sean Anderson [Fri, 24 Mar 2023 17:51:35 +0000 (13:51 -0400)]
net: sunhme: Inline error returns

The err_out label used to have cleanup. Now that it just returns, inline it
everywhere.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agonet: sunhme: Clean up mac address init
Sean Anderson [Fri, 24 Mar 2023 17:51:34 +0000 (13:51 -0400)]
net: sunhme: Clean up mac address init

Clean up some oddities suggested during review.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agonet: sunhme: Consolidate mac address initialization
Sean Anderson [Fri, 24 Mar 2023 17:51:33 +0000 (13:51 -0400)]
net: sunhme: Consolidate mac address initialization

The mac address initialization is braodly the same between PCI and SBUS,
and one was clearly copied from the other. Consolidate them. We still have
to have some ifdefs because pci_(un)map_rom is only implemented for PCI,
and idprom is only implemented for SPARC.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agonet: sunhme: Switch SBUS to devres
Sean Anderson [Fri, 24 Mar 2023 17:51:32 +0000 (13:51 -0400)]
net: sunhme: Switch SBUS to devres

The PCI half of this driver was converted in commit 914d9b2711dd ("sunhme:
switch to devres"). Do the same for the SBUS half.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agonet: sunhme: Alphabetize includes
Sean Anderson [Fri, 24 Mar 2023 17:51:31 +0000 (13:51 -0400)]
net: sunhme: Alphabetize includes

Alphabetize includes to make it clearer where to add new ones.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agonet: sunhme: Unify IRQ requesting
Sean Anderson [Fri, 24 Mar 2023 17:51:30 +0000 (13:51 -0400)]
net: sunhme: Unify IRQ requesting

Instead of registering one interrupt handler for all four SBUS Quattro
HMEs, let each HME register its own handler. To make this work, we don't
handle the IRQ if none of the status bits are set. This reduces the
complexity of the driver, and makes it easier to ensure things happen
before/after enabling IRQs.

I'm not really sure why we request IRQs in two different places (and leave
them running after removing the driver!). A lot of things in this driver
seem to just be crusty, and not necessarily intentional. I'm assuming
that's the case here as well.

This really needs to be tested by someone with an SBUS Quattro card.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agonet: sunhme: Remove residual polling code
Sean Anderson [Fri, 24 Mar 2023 17:51:29 +0000 (13:51 -0400)]
net: sunhme: Remove residual polling code

The sunhme driver never used the hardware MII polling feature. Even the
if-def'd out happy_meal_poll_start was removed by 2002 [1]. Remove the
various places in the driver which needlessly guard against MII interrupts
which will never be enabled.

[1] https://lwn.net/2002/0411/a/2.5.8-pre3.php3

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agonet: sunhme: Just restart autonegotiation if we can't bring the link up
Sean Anderson [Fri, 24 Mar 2023 17:51:28 +0000 (13:51 -0400)]
net: sunhme: Just restart autonegotiation if we can't bring the link up

If we've tried regular autonegotiation and forcing the link mode, just
restart autonegotiation instead of reinitializing the whole NIC.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agonet: sunhme: Fix uninitialized return code
Sean Anderson [Fri, 24 Mar 2023 17:51:27 +0000 (13:51 -0400)]
net: sunhme: Fix uninitialized return code

Fix an uninitialized return code if we never found a qfe slot. It would be
a bug if we ever got into this situation, but it's good to return something
tracable.

Fixes: acb3f35f920b ("sunhme: forward the error code from pci_enable_device()")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agoMerge branch 'octeon_ep-deferred-probe-and-mailbox'
David S. Miller [Mon, 27 Mar 2023 07:37:54 +0000 (08:37 +0100)]
Merge branch 'octeon_ep-deferred-probe-and-mailbox'

Veerasenareddy Burru says:

====================
octeon_ep: deferred probe and mailbox

Implement Deferred probe, mailbox enhancements and heartbeat monitor.

v4 -> v5:
   - addressed review comments
     https://lore.kernel.org/all/20230323104703.GD36557@unreal/
     replaced atomic_inc() + atomic_read() with atomic_inc_return().

v3 -> v4:
   - addressed review comments on v3
     https://lore.kernel.org/all/20230214051422.13705-1-vburru@marvell.com/
   - 0004-xxx.patch v3 is split into 0004-xxx.patch and 0005-xxx.patch
     in v4.
   - API changes to accept function ID are moved to 0005-xxx.patch.
   - fixed rct violations.
   - reverted newly added changes that do not yet have use cases.

v2 -> v3:
   - removed SRIOV VF support changes from v2, as new drivers which use
     ndo_get_vf_xxx() and ndo_set_vf_xxx() are not accepted.
     https://lore.kernel.org/all/20221207200204.6819575a@kernel.org/

     Will implement VF representors and submit again.
   - 0007-xxx.patch and 0008-xxx.patch from v2 are removed and
     0009-xxx.patch in v2 is now 0007-xxx.patch in v3.
   - accordingly, changed title for cover letter.

v1 -> v2:
   - remove separate workqueue task to wait for firmware ready.
     instead defer probe when firmware is not ready.
Reported-by: Leon Romanovsky <leon@kernel.org>
   - This change has resulted in update of 0001-xxx.patch and
     all other patches in the patchset.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agoocteon_ep: add heartbeat monitor
Veerasenareddy Burru [Fri, 24 Mar 2023 17:47:03 +0000 (10:47 -0700)]
octeon_ep: add heartbeat monitor

Monitor periodic heartbeat messages from device firmware.
Presence of heartbeat indicates the device is active and running.
If the heartbeat is missed for configured interval indicates
firmware has crashed and device is unusable; in this case, PF driver
stops and uninitialize the device.

Signed-off-by: Veerasenareddy Burru <vburru@marvell.com>
Signed-off-by: Abhijit Ayarekar <aayarekar@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agoocteon_ep: function id in link info and stats mailbox commands
Veerasenareddy Burru [Fri, 24 Mar 2023 17:47:02 +0000 (10:47 -0700)]
octeon_ep: function id in link info and stats mailbox commands

Update control mailbox API to include function id in get stats and
link info.

Signed-off-by: Veerasenareddy Burru <vburru@marvell.com>
Signed-off-by: Abhijit Ayarekar <aayarekar@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agoocteon_ep: support asynchronous notifications
Veerasenareddy Burru [Fri, 24 Mar 2023 17:47:01 +0000 (10:47 -0700)]
octeon_ep: support asynchronous notifications

Add asynchronous notification support to the control mailbox.

Signed-off-by: Veerasenareddy Burru <vburru@marvell.com>
Signed-off-by: Abhijit Ayarekar <aayarekar@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agoocteon_ep: include function id in mailbox commands
Veerasenareddy Burru [Fri, 24 Mar 2023 17:47:00 +0000 (10:47 -0700)]
octeon_ep: include function id in mailbox commands

Extend control command structure to include vfid and
update APIs to accept VF ID.

Signed-off-by: Abhijit Ayarekar <aayarekar@marvell.com>
Signed-off-by: Veerasenareddy Burru <vburru@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agoocteon_ep: add separate mailbox command and response queues
Veerasenareddy Burru [Fri, 24 Mar 2023 17:46:59 +0000 (10:46 -0700)]
octeon_ep: add separate mailbox command and response queues

Enhance control mailbox protocol to support following
 - separate command and response queues
    * command queue to send control commands to firmware.
    * response queue to receive responses and notifications from
      firmware.
 - variable size messages using scatter/gather

Signed-off-by: Abhijit Ayarekar <aayarekar@marvell.com>
Signed-off-by: Veerasenareddy Burru <vburru@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agoocteon_ep: control mailbox for multiple PFs
Veerasenareddy Burru [Fri, 24 Mar 2023 17:46:58 +0000 (10:46 -0700)]
octeon_ep: control mailbox for multiple PFs

Add control mailbox support for multiple PFs.
Update control mbox base address calculation based on PF function link.

Signed-off-by: Veerasenareddy Burru <vburru@marvell.com>
Signed-off-by: Abhijit Ayarekar <aayarekar@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agoocteon_ep: poll for control messages
Veerasenareddy Burru [Fri, 24 Mar 2023 17:46:57 +0000 (10:46 -0700)]
octeon_ep: poll for control messages

Poll for control messages until interrupts are enabled.
All the interrupts are enabled in ndo_open().
Add ability to listen for notifications from firmware before ndo_open().
Once interrupts are enabled, this polling is disabled and all the
messages are processed by bottom half of interrupt handler.

Signed-off-by: Veerasenareddy Burru <vburru@marvell.com>
Signed-off-by: Abhijit Ayarekar <aayarekar@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agoocteon_ep: defer probe if firmware not ready
Veerasenareddy Burru [Fri, 24 Mar 2023 17:46:56 +0000 (10:46 -0700)]
octeon_ep: defer probe if firmware not ready

Defer probe if firmware is not ready for device usage.

Signed-off-by: Veerasenareddy Burru <vburru@marvell.com>
Signed-off-by: Abhijit Ayarekar <aayarekar@marvell.com>
Signed-off-by: Satananda Burla <sburla@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agoMerge branch 'bcm53134-support'
David S. Miller [Mon, 27 Mar 2023 07:29:54 +0000 (08:29 +0100)]
Merge branch 'bcm53134-support'

Álvaro Fernández Rojas says:

====================
net: dsa: b53: mdio: add support for BCM53134

This is based on the initial work from Paul Geurts that was sent to the
incorrect linux development lists and recipients.
I've modified it by removing BCM53134_DEVICE_ID from is531x5() and therefore
adding is53134() where needed.
I also added a separate RGMII handling block for is53134() since according to
Paul, BCM53134 doesn't support RGMII_CTRL_TIMING_SEL as opposed to is531x5().
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agonet: dsa: b53: mdio: add support for BCM53134
Paul Geurts [Fri, 24 Mar 2023 08:41:38 +0000 (09:41 +0100)]
net: dsa: b53: mdio: add support for BCM53134

Add support for the BCM53134 Ethernet switch in the existing b53 dsa driver.
BCM53134 is very similar to the BCM58XX series.

Signed-off-by: Paul Geurts <paul.geurts@prodrive-technologies.com>
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agodt-bindings: net: dsa: b53: add BCM53134 support
Álvaro Fernández Rojas [Fri, 24 Mar 2023 08:41:37 +0000 (09:41 +0100)]
dt-bindings: net: dsa: b53: add BCM53134 support

BCM53134 are B53 switches connected by MDIO.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agotools: ynl: add the Python requirements.txt file
Michal Michalik [Thu, 23 Mar 2023 19:08:02 +0000 (20:08 +0100)]
tools: ynl: add the Python requirements.txt file

It is a good practice to state explicitly which are the required Python
packages needed in a particular project to run it. The most commonly
used way is to store them in the `requirements.txt` file*.

*URL: https://pip.pypa.io/en/stable/reference/requirements-file-format/

Currently user needs to figure out himself that Python needs `PyYAML`
and `jsonschema` (and theirs requirements) packages to use the tool.
Add the `requirements.txt` for user convenience.

How to use it:
1) (optional) Create and activate empty virtual environment:
  python3.X -m venv venv3X
  source ./venv3X/bin/activate
2) Install all the required packages:
  pip install -r requirements.txt
    or
  python -m pip install -r requirements.txt
3) Run the script!

The `requirements.txt` file was tested for:
* Python 3.6
* Python 3.8
* Python 3.10

Signed-off-by: Michal Michalik <michal.michalik@intel.com>
Link: https://lore.kernel.org/r/20230323190802.32206-1-michal.michalik@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
20 months agomISDN: remove unused vpm_read_address and cpld_read_reg functions
Tom Rix [Thu, 23 Mar 2023 16:13:43 +0000 (12:13 -0400)]
mISDN: remove unused vpm_read_address and cpld_read_reg functions

clang with W=1 reports
drivers/isdn/hardware/mISDN/hfcmulti.c:667:1: error: unused function
  'vpm_read_address' [-Werror,-Wunused-function]
vpm_read_address(struct hfc_multi *c)
^

drivers/isdn/hardware/mISDN/hfcmulti.c:643:1: error: unused function
  'cpld_read_reg' [-Werror,-Wunused-function]
cpld_read_reg(struct hfc_multi *hc, unsigned char reg)
^

These functions are not used, so remove them.

Reported-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Tom Rix <trix@redhat.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230323161343.2633836-1-trix@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
20 months agoMerge patch series "can: m_can: Optimizations for m_can/tcan part 2"
Marc Kleine-Budde [Fri, 24 Mar 2023 18:14:02 +0000 (19:14 +0100)]
Merge patch series "can: m_can: Optimizations for m_can/tcan part 2"

Markus Schneider-Pargmann <msp@baylibre.com> says:

third version part 2, functionally I had to move from spin_lock to
spin_lock_irqsave because of an interrupt that was calling start_xmit,
see attached stack. This is tested on tcan455x but I don't have the
integrated hardware myself so any testing is appreciated.

The series implements many small and bigger throughput improvements.

Changes in v3:
- Remove parenthesis in error messages
- Use memcpy_and_pad for buffer copy in 'can: m_can: Write transmit
  header and data in one transaction'.
- Replace spin_lock with spin_lock_irqsave. I got a report of a
  interrupt that was calling start_xmit just after the netqueue was
  woken up before the locked region was exited. spin_lock_irqsave should
  fix this. I attached the full stack at the end of the mail if someone
  wants to know.
- Rebased to v6.3-rc1.
- Removed tcan4x5x patches from this series.

Changes in v2: https://lore.kernel.org/all/20230125195059.630377-1-msp@baylibre.com
- Rebased on v6.2-rc5
- Fixed missing/broken accounting for non peripheral m_can devices.

part 1:
v1 - https://lore.kernel.org/lkml/20221116205308.2996556-1-msp@baylibre.com
v2 - https://lore.kernel.org/lkml/20221206115728.1056014-1-msp@baylibre.com

part 2:
v1 - https://lore.kernel.org/lkml/20221221152537.751564-1-msp@baylibre.com
v2 - https://lore.kernel.org/lkml/20230125195059.630377-1-msp@baylibre.com

stack of calling start_xmit within locked region:
[  308.170171]  dump_backtrace+0x0/0x1a0
[  308.173841]  show_stack+0x18/0x70
[  308.177158]  sched_show_task+0x154/0x180
[  308.181084]  dump_cpu_task+0x44/0x54
[  308.184664]  rcu_dump_cpu_stacks+0xe8/0x12c
[  308.188846]  rcu_sched_clock_irq+0x9f4/0xd10
[  308.193118]  update_process_times+0x9c/0xec
[  308.197304]  tick_sched_handle+0x34/0x60
[  308.201231]  tick_sched_timer+0x4c/0xa4
[  308.205071]  __hrtimer_run_queues+0x138/0x1e0
[  308.209429]  hrtimer_interrupt+0xe8/0x244
[  308.213440]  arch_timer_handler_phys+0x38/0x50
[  308.217890]  handle_percpu_devid_irq+0x84/0x130
[  308.222422]  handle_domain_irq+0x60/0x90
[  308.226347]  gic_handle_irq+0x54/0x130
[  308.230099]  do_interrupt_handler+0x34/0x60
[  308.234286]  el1_interrupt+0x30/0x80
[  308.237861]  el1h_64_irq_handler+0x18/0x24
[  308.241958]  el1h_64_irq+0x78/0x7c
[  308.245360]  queued_spin_lock_slowpath+0xf4/0x390
[  308.250067]  m_can_start_tx+0x20/0xb0 [m_can]
[  308.254431]  m_can_start_xmit+0xd8/0x230 [m_can]
[  308.259054]  dev_hard_start_xmit+0xd4/0x15c
[  308.263241]  sch_direct_xmit+0xe8/0x370
[  308.267080]  __qdisc_run+0x118/0x650
[  308.270660]  net_tx_action+0x118/0x230
[  308.274409]  _stext+0x124/0x2a0
[  308.277549]  __irq_exit_rcu+0xe4/0x100
[  308.281302]  irq_exit+0x10/0x20
[  308.284444]  handle_domain_irq+0x64/0x90
[  308.288367]  gic_handle_irq+0x54/0x130
[  308.292119]  call_on_irq_stack+0x2c/0x54
[  308.296043]  do_interrupt_handler+0x54/0x60
[  308.300228]  el1_interrupt+0x30/0x80
[  308.303804]  el1h_64_irq_handler+0x18/0x24
[  308.307901]  el1h_64_irq+0x78/0x7c
[  308.311303]  __netif_schedule+0x78/0xa0
[  308.315138]  netif_tx_wake_queue+0x50/0x7c
[  308.319237]  m_can_isr+0x474/0x1710 [m_can]
[  308.323425]  irq_thread_fn+0x2c/0x9c
[  308.327005]  irq_thread+0x178/0x2c0
[  308.330497]  kthread+0x150/0x160
[  308.333727]  ret_from_fork+0x10/0x20

Link: https://lore.kernel.org/all/20230315110546.2518305-1-msp@baylibre.com
[mkl: apply patches 1...5 only, adjust message accordingly]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
20 months agocan: m_can: Keep interrupts enabled during peripheral read
Markus Schneider-Pargmann [Wed, 15 Mar 2023 11:05:35 +0000 (12:05 +0100)]
can: m_can: Keep interrupts enabled during peripheral read

Interrupts currently get disabled if the interrupt status shows new
received data. Non-peripheral chips handle receiving in a worker thread,
but peripheral chips are handling the receive process in the threaded
interrupt routine itself without scheduling it for a different worker.
So there is no need to disable interrupts for peripheral chips.

Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/all/20230315110546.2518305-6-msp@baylibre.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
20 months agocan: m_can: Disable unused interrupts
Markus Schneider-Pargmann [Wed, 15 Mar 2023 11:05:34 +0000 (12:05 +0100)]
can: m_can: Disable unused interrupts

There are a number of interrupts that are not used by the driver at the
moment. Disable all of these.

Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/all/20230315110546.2518305-5-msp@baylibre.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
20 months agocan: m_can: Remove double interrupt enable
Markus Schneider-Pargmann [Wed, 15 Mar 2023 11:05:33 +0000 (12:05 +0100)]
can: m_can: Remove double interrupt enable

Interrupts are enabled a few lines further down as well. Remove this
second call to enable all interrupts.

Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/all/20230315110546.2518305-4-msp@baylibre.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
20 months agocan: m_can: Always acknowledge all interrupts
Markus Schneider-Pargmann [Wed, 15 Mar 2023 11:05:32 +0000 (12:05 +0100)]
can: m_can: Always acknowledge all interrupts

The code already exits the function on !ir before this condition. No
need to check again if anything is set as IR_ALL_INT is 0xffffffff.

Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/all/20230315110546.2518305-3-msp@baylibre.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
20 months agocan: m_can: Remove repeated check for is_peripheral
Markus Schneider-Pargmann [Wed, 15 Mar 2023 11:05:31 +0000 (12:05 +0100)]
can: m_can: Remove repeated check for is_peripheral

Merge both if-blocks to fix this.

Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/all/20230315110546.2518305-2-msp@baylibre.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
20 months agocan: esd_usb: Improve code readability by means of replacing struct esd_usb_msg with...
Frank Jungclaus [Wed, 22 Feb 2023 16:37:54 +0000 (17:37 +0100)]
can: esd_usb: Improve code readability by means of replacing struct esd_usb_msg with a union

As suggested by Vincent Mailhol, declare struct esd_usb_msg as a union
instead of a struct. Then replace all msg->msg.something constructs,
that make use of esd_usb_msg, with simpler and prettier looking
msg->something variants.

Link: https://lore.kernel.org/all/CAMZ6RqKRzJwmMShVT9QKwiQ5LJaQupYqkPkKjhRBsP=12QYpfA@mail.gmail.com/
Suggested-by: Vincent MAILHOL <mailhol.vincent@wanadoo.fr>
Signed-off-by: Frank Jungclaus <frank.jungclaus@esd.eu>
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20230222163754.3711766-1-frank.jungclaus@esd.eu
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
20 months agoMerge patch series "can: remove redundant pci_clear_master()"
Marc Kleine-Budde [Fri, 24 Mar 2023 18:11:34 +0000 (19:11 +0100)]
Merge patch series "can: remove redundant pci_clear_master()"

Cai Huoqing's series removes redundant pci_clear_master() to simplify
the code of multiple CAN drivers.

Link: https://lore.kernel.org/all/20230323113318.9473-1-cai.huoqing@linux.dev
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
20 months agocan: kvaser_pciefd: Remove redundant pci_clear_master
Cai Huoqing [Thu, 23 Mar 2023 11:33:17 +0000 (19:33 +0800)]
can: kvaser_pciefd: Remove redundant pci_clear_master

Remove pci_clear_master to simplify the code,
the bus-mastering is also cleared in do_pci_disable_device,
like this:
./drivers/pci/pci.c:2197
static void do_pci_disable_device(struct pci_dev *dev)
{
u16 pci_command;

pci_read_config_word(dev, PCI_COMMAND, &pci_command);
if (pci_command & PCI_COMMAND_MASTER) {
pci_command &= ~PCI_COMMAND_MASTER;
pci_write_config_word(dev, PCI_COMMAND, pci_command);
}

pcibios_disable_device(dev);
}.
And dev->is_busmaster is set to 0 in pci_disable_device.

Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Link: https://lore.kernel.org/all/20230323113318.9473-3-cai.huoqing@linux.dev
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
20 months agocan: ctucanfd: Remove redundant pci_clear_master
Cai Huoqing [Thu, 23 Mar 2023 11:33:16 +0000 (19:33 +0800)]
can: ctucanfd: Remove redundant pci_clear_master

Remove pci_clear_master to simplify the code,
the bus-mastering is also cleared in do_pci_disable_device,
like this:
./drivers/pci/pci.c:2197
static void do_pci_disable_device(struct pci_dev *dev)
{
u16 pci_command;

pci_read_config_word(dev, PCI_COMMAND, &pci_command);
if (pci_command & PCI_COMMAND_MASTER) {
pci_command &= ~PCI_COMMAND_MASTER;
pci_write_config_word(dev, PCI_COMMAND, pci_command);
}

pcibios_disable_device(dev);
}.
And dev->is_busmaster is set to 0 in pci_disable_device.

Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Link: https://lore.kernel.org/all/20230323113318.9473-2-cai.huoqing@linux.dev
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
20 months agocan: c_can: Remove redundant pci_clear_master
Cai Huoqing [Thu, 23 Mar 2023 11:33:15 +0000 (19:33 +0800)]
can: c_can: Remove redundant pci_clear_master

Remove pci_clear_master to simplify the code,
the bus-mastering is also cleared in do_pci_disable_device,
like this:
./drivers/pci/pci.c:2197
static void do_pci_disable_device(struct pci_dev *dev)
{
u16 pci_command;

pci_read_config_word(dev, PCI_COMMAND, &pci_command);
if (pci_command & PCI_COMMAND_MASTER) {
pci_command &= ~PCI_COMMAND_MASTER;
pci_write_config_word(dev, PCI_COMMAND, pci_command);
}

pcibios_disable_device(dev);
}.
And dev->is_busmaster is set to 0 in pci_disable_device.

Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Link: https://lore.kernel.org/all/20230323113318.9473-1-cai.huoqing@linux.dev
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
20 months agoMerge patch series "can: rcar_canfd: Add transceiver support"
Marc Kleine-Budde [Fri, 24 Mar 2023 18:10:01 +0000 (19:10 +0100)]
Merge patch series "can: rcar_canfd: Add transceiver support"

Geert Uytterhoeven <geert+renesas@glider.be> says:

This patch series adds transceiver support to the Renesas R-Car CAN-FD
driver, and improves the printing of error messages, as requested by
Vincent.

Link: https://lore.kernel.org/all/cover.1679414936.git.geert+renesas@glider.be
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
20 months agocan: rcar_canfd: Improve error messages
Geert Uytterhoeven [Tue, 21 Mar 2023 16:15:01 +0000 (17:15 +0100)]
can: rcar_canfd: Improve error messages

Improve printed error messages:
  - Replace numerical error codes by mnemotechnic error codes, to
    improve the user experience in case of errors,
  - Drop parentheses around printed numbers, cfr.
    Documentation/process/coding-style.rst,
  - Drop printing of an error message in case of out-of-memory, as the
    core memory allocation code already takes care of this.

Suggested-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/4162cc46f72257ec191007675933985b6df394b9.1679414936.git.geert+renesas@glider.be
[mkl: use colon instead of comma]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
20 months agocan: rcar_canfd: Add transceiver support
Geert Uytterhoeven [Tue, 21 Mar 2023 16:15:00 +0000 (17:15 +0100)]
can: rcar_canfd: Add transceiver support

Add support for CAN transceivers described as PHYs.

While simple CAN transceivers can do without, this is needed for CAN
transceivers like NXP TJR1443 that need a configuration step (like
pulling standby or enable lines), and/or impose a bitrate limit.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/1ce907572ac1d4e1733fa6ea7712250f2229cfcb.1679414936.git.geert+renesas@glider.be
[mkl: squash error message update from patch 2]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
20 months agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Jakub Kicinski [Fri, 24 Mar 2023 16:53:54 +0000 (09:53 -0700)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Conflicts:

drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
  6e9d51b1a5cb ("net/mlx5e: Initialize link speed to zero")
  1bffcea42926 ("net/mlx5e: Add devlink hairpin queues parameters")
https://lore.kernel.org/all/20230324120623.4ebbc66f@canb.auug.org.au/
https://lore.kernel.org/all/20230321211135.47711-1-saeed@kernel.org/

Adjacent changes:

drivers/net/phy/phy.c
  323fe43cf9ae ("net: phy: Improved PHY error reporting in state machine")
  4203d84032e2 ("net: phy: Ensure state transitions are processed from phy_stop()")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
20 months agoMerge tag 'net-6.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Linus Torvalds [Fri, 24 Mar 2023 15:48:12 +0000 (08:48 -0700)]
Merge tag 'net-6.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from bpf, wifi and bluetooth.

  Current release - regressions:

   - wifi: mt76: mt7915: add back 160MHz channel width support for
     MT7915

   - libbpf: revert poisoning of strlcpy, it broke uClibc-ng

  Current release - new code bugs:

   - bpf: improve the coverage of the "allow reads from uninit stack"
     feature to fix verification complexity problems

   - eth: am65-cpts: reset PPS genf adj settings on enable

  Previous releases - regressions:

   - wifi: mac80211: serialize ieee80211_handle_wake_tx_queue()

   - wifi: mt76: do not run mt76_unregister_device() on unregistered hw,
     fix null-deref

   - Bluetooth: btqcomsmd: fix command timeout after setting BD address

   - eth: igb: revert rtnl_lock() that causes a deadlock

   - dsa: mscc: ocelot: fix device specific statistics

  Previous releases - always broken:

   - xsk: add missing overflow check in xdp_umem_reg()

   - wifi: mac80211:
      - fix QoS on mesh interfaces
      - fix mesh path discovery based on unicast packets

   - Bluetooth:
      - ISO: fix timestamped HCI ISO data packet parsing
      - remove "Power-on" check from Mesh feature

   - usbnet: more fixes to drivers trusting packet length

   - wifi: iwlwifi: mvm: fix mvmtxq->stopped handling

   - Bluetooth: btintel: iterate only bluetooth device ACPI entries

   - eth: iavf: fix inverted Rx hash condition leading to disabled hash

   - eth: igc: fix the validation logic for taprio's gate list

   - dsa: tag_brcm: legacy: fix daisy-chained switches

  Misc:

   - bpf: adjust insufficient default bpf_jit_limit to account for
     growth of BPF use over the last 5 years

   - xdp: bpf_xdp_metadata() use EOPNOTSUPP as unique errno indicating
     no driver support"

* tag 'net-6.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (84 commits)
  Bluetooth: HCI: Fix global-out-of-bounds
  Bluetooth: mgmt: Fix MGMT add advmon with RSSI command
  Bluetooth: btsdio: fix use after free bug in btsdio_remove due to unfinished work
  Bluetooth: L2CAP: Fix responding with wrong PDU type
  Bluetooth: btqcomsmd: Fix command timeout after setting BD address
  Bluetooth: btinel: Check ACPI handle for NULL before accessing
  net: mdio: thunder: Add missing fwnode_handle_put()
  net: dsa: mt7530: move setting ssc_delta to PHY_INTERFACE_MODE_TRGMII case
  net: dsa: mt7530: move lowering TRGMII driving to mt7530_setup()
  net: dsa: mt7530: move enabling disabling core clock to mt7530_pll_setup()
  net: asix: fix modprobe "sysfs: cannot create duplicate filename"
  gve: Cache link_speed value from device
  tools: ynl: Fix genlmsg header encoding formats
  net: enetc: fix aggregate RMON counters not showing the ranges
  Bluetooth: Remove "Power-on" check from Mesh feature
  Bluetooth: Fix race condition in hci_cmd_sync_clear
  Bluetooth: btintel: Iterate only bluetooth device ACPI entries
  Bluetooth: ISO: fix timestamped HCI ISO data packet parsing
  Bluetooth: btusb: Remove detection of ISO packets over bulk
  Bluetooth: hci_core: Detect if an ACL packet is in fact an ISO packet
  ...

20 months agoMerge tag 'for-6.3-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
Linus Torvalds [Fri, 24 Mar 2023 15:32:10 +0000 (08:32 -0700)]
Merge tag 'for-6.3-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:
 "A few more fixes, the zoned accounting fix is spread across a few
  patches, preparatory and the actual fixes:

   - zoned mode:
      - fix accounting of unusable zone space
      - fix zone activation condition for DUP profile
      - preparatory patches

   - improved error handling of missing chunks

   - fix compiler warning"

* tag 'for-6.3-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: zoned: drop space_info->active_total_bytes
  btrfs: zoned: count fresh BG region as zone unusable
  btrfs: use temporary variable for space_info in btrfs_update_block_group
  btrfs: rename BTRFS_FS_NO_OVERCOMMIT to BTRFS_FS_ACTIVE_ZONE_TRACKING
  btrfs: zoned: fix btrfs_can_activate_zone() to support DUP profile
  btrfs: fix compiler warning on SPARC/PA-RISC handling fscrypt_setup_filename
  btrfs: handle missing chunk mapping more gracefully

20 months agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Fri, 24 Mar 2023 15:27:13 +0000 (08:27 -0700)]
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Four small fixes, three in drivers.

  The core fix adds a UFS device to an existing quirk to avoid a huge
  delay on boot"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: scsi_dh_alua: Fix memleak for 'qdata' in alua_activate()
  scsi: qla2xxx: Synchronize the IOCB count to be in order
  scsi: qla2xxx: Perform lockless command completion in abort path
  scsi: core: Add BLIST_SKIP_VPD_PAGES for SKhynix H28U74301AMR

20 months agonet: phy: Improved PHY error reporting in state machine
Florian Fainelli [Thu, 23 Mar 2023 21:45:59 +0000 (14:45 -0700)]
net: phy: Improved PHY error reporting in state machine

When the PHY library calls phy_error() something bad has happened, and
we halt the PHY state machine. Calling phy_error() from the main state
machine however is not precise enough to know whether the issue is
reading the link status or starting auto-negotiation.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agonet/ism: Remove redundant pci_clear_master
Cai Huoqing [Thu, 23 Mar 2023 12:00:43 +0000 (20:00 +0800)]
net/ism: Remove redundant pci_clear_master

Remove pci_clear_master to simplify the code,
the bus-mastering is also cleared in do_pci_disable_device,
like this:
./drivers/pci/pci.c:2197
static void do_pci_disable_device(struct pci_dev *dev)
{
u16 pci_command;

pci_read_config_word(dev, PCI_COMMAND, &pci_command);
if (pci_command & PCI_COMMAND_MASTER) {
pci_command &= ~PCI_COMMAND_MASTER;
pci_write_config_word(dev, PCI_COMMAND, pci_command);
}

pcibios_disable_device(dev);
}.
And dev->is_busmaster is set to 0 in pci_disable_device.

Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agoisdn: mISDN: netjet: Remove redundant pci_clear_master
Cai Huoqing [Thu, 23 Mar 2023 11:59:11 +0000 (19:59 +0800)]
isdn: mISDN: netjet: Remove redundant pci_clear_master

Remove pci_clear_master to simplify the code,
the bus-mastering is also cleared in do_pci_disable_device,
like this:
./drivers/pci/pci.c:2197
static void do_pci_disable_device(struct pci_dev *dev)
{
u16 pci_command;

pci_read_config_word(dev, PCI_COMMAND, &pci_command);
if (pci_command & PCI_COMMAND_MASTER) {
pci_command &= ~PCI_COMMAND_MASTER;
pci_write_config_word(dev, PCI_COMMAND, pci_command);
}

pcibios_disable_device(dev);
}.
And dev->is_busmaster is set to 0 in pci_disable_device.

Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agonet: phy: micrel: Add support for PTP_PF_EXTTS for lan8841
Horatiu Vultur [Thu, 23 Mar 2023 10:55:57 +0000 (11:55 +0100)]
net: phy: micrel: Add support for PTP_PF_EXTTS for lan8841

Extend the PTP programmable gpios to implement also PTP_PF_EXTTS
function. The pins can be configured to capture both of rising
and falling edge. Once the event is seen, then an interrupt is
generated and the LTC is saved in the registers.

This was tested using:
ts2phc -m -l 7 -s generic -f ts2phc.cfg

Where the configuration was the following:
[global]
ts2phc.pin_index  6

[eth2]

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agoethernet: ec_bhf: Remove redundant pci_clear_master
Cai Huoqing [Thu, 23 Mar 2023 09:03:07 +0000 (17:03 +0800)]
ethernet: ec_bhf: Remove redundant pci_clear_master

Remove pci_clear_master to simplify the code,
the bus-mastering is also cleared in do_pci_disable_device,
like this:
./drivers/pci/pci.c:2197
static void do_pci_disable_device(struct pci_dev *dev)
{
u16 pci_command;

pci_read_config_word(dev, PCI_COMMAND, &pci_command);
if (pci_command & PCI_COMMAND_MASTER) {
pci_command &= ~PCI_COMMAND_MASTER;
pci_write_config_word(dev, PCI_COMMAND, pci_command);
}

pcibios_disable_device(dev);
}.
And dev->is_busmaster is set to 0 in pci_disable_device.

Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agoionic: Remove redundant pci_clear_master
Cai Huoqing [Thu, 23 Mar 2023 09:03:06 +0000 (17:03 +0800)]
ionic: Remove redundant pci_clear_master

Remove pci_clear_master to simplify the code,
the bus-mastering is also cleared in do_pci_disable_device,
like this:
./drivers/pci/pci.c:2197
static void do_pci_disable_device(struct pci_dev *dev)
{
u16 pci_command;

pci_read_config_word(dev, PCI_COMMAND, &pci_command);
if (pci_command & PCI_COMMAND_MASTER) {
pci_command &= ~PCI_COMMAND_MASTER;
pci_write_config_word(dev, PCI_COMMAND, pci_command);
}

pcibios_disable_device(dev);
}.
And dev->is_busmaster is set to 0 in pci_disable_device.

Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Acked-by: Shannon Nelson <shannon.nelson@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agonet: mana: Remove redundant pci_clear_master
Cai Huoqing [Thu, 23 Mar 2023 09:03:05 +0000 (17:03 +0800)]
net: mana: Remove redundant pci_clear_master

Remove pci_clear_master to simplify the code,
the bus-mastering is also cleared in do_pci_disable_device,
like this:
./drivers/pci/pci.c:2197
static void do_pci_disable_device(struct pci_dev *dev)
{
u16 pci_command;

pci_read_config_word(dev, PCI_COMMAND, &pci_command);
if (pci_command & PCI_COMMAND_MASTER) {
pci_command &= ~PCI_COMMAND_MASTER;
pci_write_config_word(dev, PCI_COMMAND, pci_command);
}

pcibios_disable_device(dev);
}.
And dev->is_busmaster is set to 0 in pci_disable_device.

Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agonet/mlx5: Remove redundant pci_clear_master
Cai Huoqing [Thu, 23 Mar 2023 09:03:04 +0000 (17:03 +0800)]
net/mlx5: Remove redundant pci_clear_master

Remove pci_clear_master to simplify the code,
the bus-mastering is also cleared in do_pci_disable_device,
like this:
./drivers/pci/pci.c:2197
static void do_pci_disable_device(struct pci_dev *dev)
{
u16 pci_command;

pci_read_config_word(dev, PCI_COMMAND, &pci_command);
if (pci_command & PCI_COMMAND_MASTER) {
pci_command &= ~PCI_COMMAND_MASTER;
pci_write_config_word(dev, PCI_COMMAND, pci_command);
}

pcibios_disable_device(dev);
}.
And dev->is_busmaster is set to 0 in pci_disable_device.

Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agonet/fungible: Remove redundant pci_clear_master
Cai Huoqing [Thu, 23 Mar 2023 09:03:03 +0000 (17:03 +0800)]
net/fungible: Remove redundant pci_clear_master

Remove pci_clear_master to simplify the code,
the bus-mastering is also cleared in do_pci_disable_device,
like this:
./drivers/pci/pci.c:2197
static void do_pci_disable_device(struct pci_dev *dev)
{
u16 pci_command;

pci_read_config_word(dev, PCI_COMMAND, &pci_command);
if (pci_command & PCI_COMMAND_MASTER) {
pci_command &= ~PCI_COMMAND_MASTER;
pci_write_config_word(dev, PCI_COMMAND, pci_command);
}

pcibios_disable_device(dev);
}.
And dev->is_busmaster is set to 0 in pci_disable_device.

Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Acked-by: Dimitris Michailidis <dmichail@fungible.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agonet: cxgb4vf: Remove redundant pci_clear_master
Cai Huoqing [Thu, 23 Mar 2023 09:03:02 +0000 (17:03 +0800)]
net: cxgb4vf: Remove redundant pci_clear_master

Remove pci_clear_master to simplify the code,
the bus-mastering is also cleared in do_pci_disable_device,
like this:
./drivers/pci/pci.c:2197
static void do_pci_disable_device(struct pci_dev *dev)
{
u16 pci_command;

pci_read_config_word(dev, PCI_COMMAND, &pci_command);
if (pci_command & PCI_COMMAND_MASTER) {
pci_command &= ~PCI_COMMAND_MASTER;
pci_write_config_word(dev, PCI_COMMAND, pci_command);
}

pcibios_disable_device(dev);
}.
And dev->is_busmaster is set to 0 in pci_disable_device.

Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agonet: hisilicon: Remove redundant pci_clear_master
Cai Huoqing [Thu, 23 Mar 2023 09:03:01 +0000 (17:03 +0800)]
net: hisilicon: Remove redundant pci_clear_master

Remove pci_clear_master to simplify the code,
the bus-mastering is also cleared in do_pci_disable_device,
like this:
./drivers/pci/pci.c:2197
static void do_pci_disable_device(struct pci_dev *dev)
{
u16 pci_command;

pci_read_config_word(dev, PCI_COMMAND, &pci_command);
if (pci_command & PCI_COMMAND_MASTER) {
pci_command &= ~PCI_COMMAND_MASTER;
pci_write_config_word(dev, PCI_COMMAND, pci_command);
}

pcibios_disable_device(dev);
}.
And dev->is_busmaster is set to 0 in pci_disable_device.

Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agonet: liquidio: Remove redundant pci_clear_master
Cai Huoqing [Thu, 23 Mar 2023 09:03:00 +0000 (17:03 +0800)]
net: liquidio: Remove redundant pci_clear_master

Remove pci_clear_master to simplify the code,
the bus-mastering is also cleared in do_pci_disable_device,
like this:
./drivers/pci/pci.c:2197
static void do_pci_disable_device(struct pci_dev *dev)
{
u16 pci_command;

pci_read_config_word(dev, PCI_COMMAND, &pci_command);
if (pci_command & PCI_COMMAND_MASTER) {
pci_command &= ~PCI_COMMAND_MASTER;
pci_write_config_word(dev, PCI_COMMAND, pci_command);
}

pcibios_disable_device(dev);
}.
And dev->is_busmaster is set to 0 in pci_disable_device.

Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agofix typos in net/sched/* files
Taichi Nishimura [Thu, 23 Mar 2023 05:27:13 +0000 (14:27 +0900)]
fix typos in net/sched/* files

This patch fixes typos in net/sched/* files.

Signed-off-by: Taichi Nishimura <awkrail01@gmail.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agoethernet: broadcom/sb1250-mac: clean up after SIBYTE_BCM1x55 removal
Lukas Bulwahn [Thu, 23 Mar 2023 05:21:01 +0000 (06:21 +0100)]
ethernet: broadcom/sb1250-mac: clean up after SIBYTE_BCM1x55 removal

With commit b984d7b56dfc ("MIPS: sibyte: Remove unused config option
SIBYTE_BCM1x55"), some #if's in the Broadcom SiByte SOC built-in Ethernet
driver can be simplified.

Simplify prepreprocessor conditions after config SIBYTE_BCM1x55 removal.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agoipv6: prevent router_solicitations for team port
Xin Long [Wed, 22 Mar 2023 23:35:41 +0000 (19:35 -0400)]
ipv6: prevent router_solicitations for team port

The issue fixed for bonding in commit c2edacf80e15 ("bonding / ipv6: no
addrconf for slaves separately from master") also exists in team driver.
However, we can't just disable ipv6 addrconf for team ports, as 'teamd'
will need it when nsns_ping watch is used in the user space.

Instead of preventing ipv6 addrconf, this patch only prevents RS packets
for team ports, as it did in commit b52e1cce31ca ("ipv6: Don't send rs
packets to the interface of ARPHRD_TUNNEL").

Note that we do not prevent DAD packets, to avoid the changes getting
intricate / hacky. Also, usually sysctl dad_transmits is set to 1 and
only 1 DAD packet will be sent, and by now no libteam user complains
about DAD packets on team ports, unlike RS packets.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agoMerge branch 'main' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/netfilter...
Jakub Kicinski [Fri, 24 Mar 2023 04:55:24 +0000 (21:55 -0700)]
Merge branch 'main' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next

Florian Westphal says:

====================
netfilter updates for net-next

This pull request contains changes for the *net-next* tree.

1. Change IPv6 stack to keep conntrack references until ipsec policy
   checks are done, like ipv4, from Madhu Koriginja.
   This update was missed when IPv6 NAT support was added 10 years ago.

2. get rid of old 'compat' structure layout in nf_nat_redirect
   core and move the conversion to the only user that needs the
   old layout for abi reasons. From Jeremy Sowden.

3. Compact some common code paths in nft_redir, also from Jeremy.

4. Time to remove the 'default y' knob so iptables 32bit compat interface
   isn't compiled in by default anymore, from myself.

5. Move ip(6)tables builtin icmp matches to the udptcp one.
   This has the advantage that icmp/icmpv6 match doesn't load the
   iptables/ip6tables modules anymore when iptables-nft is used.
   Also from myself.

* 'main' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next:
  netfilter: keep conntrack reference until IPsecv6 policy checks are done
  xtables: move icmp/icmpv6 logic to xt_tcpudp
  netfilter: xtables: disable 32bit compat interface by default
  netfilter: nft_masq: deduplicate eval call-backs
  netfilter: nft_redir: use `struct nf_nat_range2` throughout and deduplicate eval call-backs
====================

Link: https://lore.kernel.org/r/20230322210802.6743-1-fw@strlen.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
20 months agodocs: netdev: add note about Changes Requested and revising commit messages
Jakub Kicinski [Wed, 22 Mar 2023 23:12:02 +0000 (16:12 -0700)]
docs: netdev: add note about Changes Requested and revising commit messages

One of the most commonly asked questions is "I answered all questions
and don't need to make any code changes, why was the patch not applied".
Document our time honored tradition of asking people to repost with
improved commit messages, to record the answers to reviewer questions.

Take this opportunity to also recommend a change log format.

Link: https://lore.kernel.org/r/20230322231202.265835-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
20 months agobnx2: remove deadcode in bnx2_init_cpus()
Maxim Korotkov [Wed, 22 Mar 2023 16:28:43 +0000 (19:28 +0300)]
bnx2: remove deadcode in bnx2_init_cpus()

The load_cpu_fw function has no error return code
and always returns zero. Checking the value returned by
this function does not make sense.
Now checking the value of the return value is misleading when reading
the code. Path with error handling was deleted in 57579f7629a3
("bnx2: Use request_firmware()").
As a result, bnx2_init_cpus() will also return only zero
Therefore, it will be safe to change the type of functions
to void and remove checking to improving readability.

Found by Security Code and Linux Verification
Center (linuxtesting.org) with SVACE

Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Maxim Korotkov <korotkov.maxim.s@gmail.com>
Link: https://lore.kernel.org/r/20230322162843.3452-1-korotkov.maxim.s@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
20 months agonet: ipa: add IPA v5.0 to ipa_version_string()
Alex Elder [Wed, 22 Mar 2023 14:47:42 +0000 (09:47 -0500)]
net: ipa: add IPA v5.0 to ipa_version_string()

In the IPA device sysfs directory, the "version" file can be read to
find out what IPA version is implemented.  The content of this file
is supplied by ipa_version_string(), which needs to be updated to
properly handle IPA v5.0.

Signed-off-by: Alex Elder <elder@linaro.org>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230322144742.2203947-1-elder@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
20 months agoynl: allow to encode u8 attr
Jiri Pirko [Wed, 22 Mar 2023 15:42:42 +0000 (16:42 +0100)]
ynl: allow to encode u8 attr

Playing with dpll netlink, I came across following issue:
$ sudo ./tools/net/ynl/cli.py --spec Documentation/netlink/specs/dpll.yaml --do pin-set --json '{"id": 0, "pin-idx": 1, "pin-state": 1}'
Traceback (most recent call last):
  File "tools/net/ynl/cli.py", line 52, in <module>
    main()
  File "tools/net/ynl/cli.py", line 40, in main
    reply = ynl.do(args.do, attrs)
  File "tools/net/ynl/lib/ynl.py", line 520, in do
    return self._op(method, vals)
  File "tools/net/ynl/lib/ynl.py", line 476, in _op
    msg += self._add_attr(op.attr_set.name, name, value)
  File "tools/net/ynl/lib/ynl.py", line 344, in _add_attr
    raise Exception(f'Unknown type at {space} {name} {value} {attr["type"]}')
Exception: Unknown type at dpll pin-state 1 u8

I'm not that familiar with ynl code, but from a quick peek, I suspect
that couple other types are missing for both encoding and decoding.
Ignoring those here as I'm scratching my local itch only.

Fix the issue by adding u8 attr packing.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20230322154242.1739136-1-jiri@resnulli.us
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
20 months agodocs: networking: document NAPI
Jakub Kicinski [Wed, 22 Mar 2023 05:38:48 +0000 (22:38 -0700)]
docs: networking: document NAPI

Add basic documentation about NAPI. We can stop linking to the ancient
doc on the LF wiki.

Link: https://lore.kernel.org/all/20230315223044.471002-1-kuba@kernel.org/
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: Pavel Pisa <pisa@cmp.felk.cvut.cz> # for ctucanfd-driver.rst
Reviewed-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20230322053848.198452-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
20 months agoMerge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Jakub Kicinski [Thu, 23 Mar 2023 23:03:33 +0000 (16:03 -0700)]
Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

Daniel Borkmann says:

====================
pull-request: bpf 2023-03-23

We've added 8 non-merge commits during the last 13 day(s) which contain
a total of 21 files changed, 238 insertions(+), 161 deletions(-).

The main changes are:

1) Fix verification issues in some BPF programs due to their stack usage
   patterns, from Eduard Zingerman.

2) Fix to add missing overflow checks in xdp_umem_reg and return an error
   in such case, from Kal Conley.

3) Fix and undo poisoning of strlcpy in libbpf given it broke builds for
   libcs which provided the former like uClibc-ng, from Jesus Sanchez-Palencia.

4) Fix insufficient bpf_jit_limit default to avoid users running into hard
   to debug seccomp BPF errors, from Daniel Borkmann.

5) Fix driver return code when they don't support a bpf_xdp_metadata kfunc
   to make it unambiguous from other errors, from Jesper Dangaard Brouer.

6) Two BPF selftest fixes to address compilation errors from recent changes
   in kernel structures, from Alexei Starovoitov.

* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  xdp: bpf_xdp_metadata use EOPNOTSUPP for no driver support
  bpf: Adjust insufficient default bpf_jit_limit
  xsk: Add missing overflow check in xdp_umem_reg
  selftests/bpf: Fix progs/test_deny_namespace.c issues.
  selftests/bpf: Fix progs/find_vma_fail1.c build error.
  libbpf: Revert poisoning of strlcpy
  selftests/bpf: Tests for uninitialized stack reads
  bpf: Allow reads from uninit stack
====================

Link: https://lore.kernel.org/r/20230323225221.6082-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
20 months agoMerge tag 'for-net-2023-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/bluet...
Jakub Kicinski [Thu, 23 Mar 2023 22:56:20 +0000 (15:56 -0700)]
Merge tag 'for-net-2023-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth

Luiz Augusto von Dentz says:

====================
bluetooth pull request for net:

 - Fix MGMT add advmon with RSSI command
 - L2CAP: Fix responding with wrong PDU type
 - Fix race condition in hci_cmd_sync_clear
 - ISO: Fix timestamped HCI ISO data packet parsing
 - HCI: Fix global-out-of-bounds
 - hci_sync: Resume adv with no RPA when active scan

* tag 'for-net-2023-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth:
  Bluetooth: HCI: Fix global-out-of-bounds
  Bluetooth: mgmt: Fix MGMT add advmon with RSSI command
  Bluetooth: btsdio: fix use after free bug in btsdio_remove due to unfinished work
  Bluetooth: L2CAP: Fix responding with wrong PDU type
  Bluetooth: btqcomsmd: Fix command timeout after setting BD address
  Bluetooth: btinel: Check ACPI handle for NULL before accessing
  Bluetooth: Remove "Power-on" check from Mesh feature
  Bluetooth: Fix race condition in hci_cmd_sync_clear
  Bluetooth: btintel: Iterate only bluetooth device ACPI entries
  Bluetooth: ISO: fix timestamped HCI ISO data packet parsing
  Bluetooth: btusb: Remove detection of ISO packets over bulk
  Bluetooth: hci_core: Detect if an ACL packet is in fact an ISO packet
  Bluetooth: hci_sync: Resume adv with no RPA when active scan
====================

Link: https://lore.kernel.org/r/20230323202335.3380841-1-luiz.dentz@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
20 months agoMerge tag 'wireless-2023-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git...
Jakub Kicinski [Thu, 23 Mar 2023 22:47:53 +0000 (15:47 -0700)]
Merge tag 'wireless-2023-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless

Kalle Valo says:

====================
wireless fixes for v6.3

Third set of fixes for v6.3. mt76 has two kernel crash fixes and
adding back 160 MHz channel support for mt7915. mac80211 has fixes for
a race in transmit path and two mesh related fixes. iwlwifi also has
fixes for races.

* tag 'wireless-2023-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
  wifi: mac80211: fix mesh path discovery based on unicast packets
  wifi: mac80211: fix qos on mesh interfaces
  wifi: iwlwifi: mvm: protect TXQ list manipulation
  wifi: iwlwifi: mvm: fix mvmtxq->stopped handling
  wifi: mac80211: Serialize ieee80211_handle_wake_tx_queue()
  wifi: mwifiex: mark OF related data as maybe unused
  wifi: mt76: connac: do not check WED status for non-mmio devices
  wifi: mt76: mt7915: add back 160MHz channel width support for MT7915
  wifi: mt76: do not run mt76_unregister_device() on unregistered hw
====================

Link: https://lore.kernel.org/r/20230323110332.C4FE4C433D2@smtp.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
20 months agoMerge tag 'gfs2-v6.3-rc3-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2...
Linus Torvalds [Thu, 23 Mar 2023 22:25:49 +0000 (15:25 -0700)]
Merge tag 'gfs2-v6.3-rc3-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2

Pull gfs2 fix from Andreas Gruenbacher:

 - Reinstate commit 970343cd4904 ("GFS2: free disk inode which is
   deleted by remote node -V2") as reverting that commit could cause
   gfs2_put_super() to hang.

* tag 'gfs2-v6.3-rc3-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
  Reinstate "GFS2: free disk inode which is deleted by remote node -V2"

20 months agoBluetooth: HCI: Fix global-out-of-bounds
Sungwoo Kim [Tue, 21 Mar 2023 01:50:18 +0000 (21:50 -0400)]
Bluetooth: HCI: Fix global-out-of-bounds

To loop a variable-length array, hci_init_stage_sync(stage) considers
that stage[i] is valid as long as stage[i-1].func is valid.
Thus, the last element of stage[].func should be intentionally invalid
as hci_init0[], le_init2[], and others did.
However, amp_init1[] and amp_init2[] have no invalid element, letting
hci_init_stage_sync() keep accessing amp_init1[] over its valid range.
This patch fixes this by adding {} in the last of amp_init1[] and
amp_init2[].

==================================================================
BUG: KASAN: global-out-of-bounds in hci_dev_open_sync (
/v6.2-bzimage/net/bluetooth/hci_sync.c:3154
/v6.2-bzimage/net/bluetooth/hci_sync.c:3343
/v6.2-bzimage/net/bluetooth/hci_sync.c:4418
/v6.2-bzimage/net/bluetooth/hci_sync.c:4609
/v6.2-bzimage/net/bluetooth/hci_sync.c:4689)
Read of size 8 at addr ffffffffaed1ab70 by task kworker/u5:0/1032
CPU: 0 PID: 1032 Comm: kworker/u5:0 Not tainted 6.2.0 #3
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04
Workqueue: hci1 hci_power_on
Call Trace:
 <TASK>
dump_stack_lvl (/v6.2-bzimage/lib/dump_stack.c:107 (discriminator 1))
print_report (/v6.2-bzimage/mm/kasan/report.c:307
  /v6.2-bzimage/mm/kasan/report.c:417)
? hci_dev_open_sync (/v6.2-bzimage/net/bluetooth/hci_sync.c:3154
  /v6.2-bzimage/net/bluetooth/hci_sync.c:3343
  /v6.2-bzimage/net/bluetooth/hci_sync.c:4418
  /v6.2-bzimage/net/bluetooth/hci_sync.c:4609
  /v6.2-bzimage/net/bluetooth/hci_sync.c:4689)
kasan_report (/v6.2-bzimage/mm/kasan/report.c:184
  /v6.2-bzimage/mm/kasan/report.c:519)
? hci_dev_open_sync (/v6.2-bzimage/net/bluetooth/hci_sync.c:3154
  /v6.2-bzimage/net/bluetooth/hci_sync.c:3343
  /v6.2-bzimage/net/bluetooth/hci_sync.c:4418
  /v6.2-bzimage/net/bluetooth/hci_sync.c:4609
  /v6.2-bzimage/net/bluetooth/hci_sync.c:4689)
hci_dev_open_sync (/v6.2-bzimage/net/bluetooth/hci_sync.c:3154
  /v6.2-bzimage/net/bluetooth/hci_sync.c:3343
  /v6.2-bzimage/net/bluetooth/hci_sync.c:4418
  /v6.2-bzimage/net/bluetooth/hci_sync.c:4609
  /v6.2-bzimage/net/bluetooth/hci_sync.c:4689)
? __pfx_hci_dev_open_sync (/v6.2-bzimage/net/bluetooth/hci_sync.c:4635)
? mutex_lock (/v6.2-bzimage/./arch/x86/include/asm/atomic64_64.h:190
  /v6.2-bzimage/./include/linux/atomic/atomic-long.h:443
  /v6.2-bzimage/./include/linux/atomic/atomic-instrumented.h:1781
  /v6.2-bzimage/kernel/locking/mutex.c:171
  /v6.2-bzimage/kernel/locking/mutex.c:285)
? __pfx_mutex_lock (/v6.2-bzimage/kernel/locking/mutex.c:282)
hci_power_on (/v6.2-bzimage/net/bluetooth/hci_core.c:485
  /v6.2-bzimage/net/bluetooth/hci_core.c:984)
? __pfx_hci_power_on (/v6.2-bzimage/net/bluetooth/hci_core.c:969)
? read_word_at_a_time (/v6.2-bzimage/./include/asm-generic/rwonce.h:85)
? strscpy (/v6.2-bzimage/./arch/x86/include/asm/word-at-a-time.h:62
  /v6.2-bzimage/lib/string.c:161)
process_one_work (/v6.2-bzimage/kernel/workqueue.c:2294)
worker_thread (/v6.2-bzimage/./include/linux/list.h:292
  /v6.2-bzimage/kernel/workqueue.c:2437)
? __pfx_worker_thread (/v6.2-bzimage/kernel/workqueue.c:2379)
kthread (/v6.2-bzimage/kernel/kthread.c:376)
? __pfx_kthread (/v6.2-bzimage/kernel/kthread.c:331)
ret_from_fork (/v6.2-bzimage/arch/x86/entry/entry_64.S:314)
 </TASK>
The buggy address belongs to the variable:
amp_init1+0x30/0x60
The buggy address belongs to the physical page:
page:000000003a157ec6 refcount:1 mapcount:0 mapping:0000000000000000 ia
flags: 0x200000000001000(reserved|node=0|zone=2)
raw: 0200000000001000 ffffea0005054688 ffffea0005054688 000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff 000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
 ffffffffaed1aa00: f9 f9 f9 f9 00 00 00 00 f9 f9 f9 f9 00 00 00 00
 ffffffffaed1aa80: 00 00 00 00 f9 f9 f9 f9 00 00 00 00 00 00 00 00
>ffffffffaed1ab00: 00 f9 f9 f9 f9 f9 f9 f9 00 00 00 00 00 00 f9 f9
                                                             ^
 ffffffffaed1ab80: f9 f9 f9 f9 00 00 00 00 f9 f9 f9 f9 00 00 00 f9
 ffffffffaed1ac00: f9 f9 f9 f9 00 06 f9 f9 f9 f9 f9 f9 00 00 02 f9

This bug is found by FuzzBT, a modified version of Syzkaller.
Other contributors for this bug are Ruoyu Wu and Peng Hui.

Fixes: d0b137062b2d ("Bluetooth: hci_sync: Rework init stages")
Signed-off-by: Sungwoo Kim <iam@sung-woo.kim>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
20 months agoBluetooth: mgmt: Fix MGMT add advmon with RSSI command
Howard Chung [Thu, 16 Mar 2023 10:11:38 +0000 (18:11 +0800)]
Bluetooth: mgmt: Fix MGMT add advmon with RSSI command

The MGMT command: MGMT_OP_ADD_ADV_PATTERNS_MONITOR_RSSI uses variable
length argument. This causes host not able to register advmon with rssi.

This patch has been locally tested by adding monitor with rssi via
btmgmt on a kernel 6.1 machine.

Reviewed-by: Archie Pusaka <apusaka@chromium.org>
Fixes: b338d91703fa ("Bluetooth: Implement support for Mesh")
Signed-off-by: Howard Chung <howardchung@google.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
20 months agoBluetooth: btsdio: fix use after free bug in btsdio_remove due to unfinished work
Zheng Wang [Thu, 9 Mar 2023 08:07:39 +0000 (16:07 +0800)]
Bluetooth: btsdio: fix use after free bug in btsdio_remove due to unfinished work

In btsdio_probe, &data->work was bound with btsdio_work.In
btsdio_send_frame, it was started by schedule_work.

If we call btsdio_remove with an unfinished job, there may
be a race condition and cause UAF bug on hdev.

Fixes: ddbaf13e3609 ("[Bluetooth] Add generic driver for Bluetooth SDIO devices")
Signed-off-by: Zheng Wang <zyytlz.wz@163.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
20 months agoBluetooth: L2CAP: Fix responding with wrong PDU type
Luiz Augusto von Dentz [Wed, 8 Mar 2023 22:20:34 +0000 (14:20 -0800)]
Bluetooth: L2CAP: Fix responding with wrong PDU type

L2CAP_ECRED_CONN_REQ shall be responded with L2CAP_ECRED_CONN_RSP not
L2CAP_LE_CONN_RSP:

L2CAP LE EATT Server - Reject - run
  Listening for connections
  New client connection with handle 0x002a
  Sending L2CAP Request from client
  Client received response code 0x15
  Unexpected L2CAP response code (expected 0x18)
L2CAP LE EATT Server - Reject - test failed

> ACL Data RX: Handle 42 flags 0x02 dlen 26
      LE L2CAP: Enhanced Credit Connection Request (0x17) ident 1 len 18
        PSM: 39 (0x0027)
        MTU: 64
        MPS: 64
        Credits: 5
        Source CID: 65
        Source CID: 66
        Source CID: 67
        Source CID: 68
        Source CID: 69
< ACL Data TX: Handle 42 flags 0x00 dlen 16
      LE L2CAP: LE Connection Response (0x15) ident 1 len 8
        invalid size
        00 00 00 00 00 00 06 00

L2CAP LE EATT Server - Reject - run
  Listening for connections
  New client connection with handle 0x002a
  Sending L2CAP Request from client
  Client received response code 0x18
L2CAP LE EATT Server - Reject - test passed

Fixes: 15f02b910562 ("Bluetooth: L2CAP: Add initial code for Enhanced Credit Based Mode")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
20 months agoBluetooth: btqcomsmd: Fix command timeout after setting BD address
Stephan Gerhold [Wed, 8 Mar 2023 13:31:55 +0000 (14:31 +0100)]
Bluetooth: btqcomsmd: Fix command timeout after setting BD address

On most devices using the btqcomsmd driver (e.g. the DragonBoard 410c
and other devices based on the Qualcomm MSM8916/MSM8909/... SoCs)
the Bluetooth firmware seems to become unresponsive for a while after
setting the BD address. On recent kernel versions (at least 5.17+)
this often causes timeouts for subsequent commands, e.g. the HCI reset
sent by the Bluetooth core during initialization:

    Bluetooth: hci0: Opcode 0x c03 failed: -110

Unfortunately this behavior does not seem to be documented anywhere.
Experimentation suggests that the minimum necessary delay to avoid
the problem is ~150us. However, to be sure add a sleep for > 1ms
in case it is a bit longer on other firmware versions.

Older kernel versions are likely also affected, although perhaps with
slightly different errors or less probability. Side effects can easily
hide the issue in most cases, e.g. unrelated incoming interrupts that
cause the necessary delay.

Fixes: 1511cc750c3d ("Bluetooth: Introduce Qualcomm WCNSS SMD based HCI driver")
Signed-off-by: Stephan Gerhold <stephan.gerhold@kernkonzept.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
20 months agoBluetooth: btinel: Check ACPI handle for NULL before accessing
Kiran K [Wed, 8 Mar 2023 07:58:37 +0000 (13:28 +0530)]
Bluetooth: btinel: Check ACPI handle for NULL before accessing

Older platforms and Virtual platforms which doesn't have support for
bluetooth device in ACPI firmware will not have valid ACPI handle.
Check for validity of handle before accessing.

dmesg log from simics environment (virtual platform):

BUG: unable to handle kernel NULL pointer dereference at
0000000000000018
IP: acpi_ns_walk_namespace+0x5c/0x278
PGD 0 P4D 0
Oops: 0000 [#1] SMP PTI
Modules linked in: bnep intel_powerclamp coretemp kvm_intel
kvm irqbypass intel_cstate input_leds joydev serio_raw mac_hid
btusb(OE) btintel(OE) bluetooth(OE) lpc_ich compat(OE) ecdh_generic
i7core_edac i5500_temp shpchp binfmt_misc sch_fq_codel parport_pc ppdev
lp parport ip_tables x_tables autofs4 hid_generic usbhid hid e1000e
psmouse ahci pata_acpi libahci ptp pps_core floppy
CPU: 0 PID: 35 Comm: kworker/u3:0 Tainted: G           OE
4.15.0-140-generic #144-Ubuntu
Hardware name: Simics Simics, BIOS Simics 01/01/2011
Workqueue: hci0 hci_power_on [bluetooth]
RIP: 0010:acpi_ns_walk_namespace+0x5c/0x278
RSP: 0000:ffffaa9c0049bba8 EFLAGS: 00010246
RAX: 0000000000000001 RBX: 0000000000001001 RCX: 0000000000000010
RDX: ffffffff92ea7e27 RSI: ffffffff92ea7e10 RDI: 00000000000000c8
RBP: ffffaa9c0049bbf8 R08: 0000000000000000 R09: ffffffffc05b39d0
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
R13: 0000000000000000 R14: ffffffffc05b39d0 R15: ffffaa9c0049bc70
FS:  0000000000000000(0000) GS:ffff8be73fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000018 CR3: 0000000075f0e000 CR4: 00000000000006f0

Fixes: 294d749b5df5 ("Bluetooth: btintel: Iterate only bluetooth device ACPI entries")
Signed-off-by: Kiran K <kiran.k@intel.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
20 months agoReinstate "GFS2: free disk inode which is deleted by remote node -V2"
Bob Peterson [Thu, 23 Mar 2023 16:26:02 +0000 (12:26 -0400)]
Reinstate "GFS2: free disk inode which is deleted by remote node -V2"

It turns out that reverting commit 970343cd4904 ("GFS2: free disk inode
which is deleted by remote node -V2") causes a regression related to
evicting inodes that were unlinked on a different cluster node.

We could also have simply added a call to d_mark_dontcache() to function
gfs2_try_evict(), but the original pre-revert code is better tested and
proven.

This reverts commit 445cb1277e10d7e19b631ef8a64aa3f055df377d.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
20 months agoMerge tag 'zonefs-6.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal...
Linus Torvalds [Thu, 23 Mar 2023 18:05:08 +0000 (11:05 -0700)]
Merge tag 'zonefs-6.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs

Pull zonefs fixes from Damien Le Moal:

 - Silence a false positive smatch warning about an uninitialized
   variable

 - Fix an error message to provide more useful information about invalid
   zone append write results

* tag 'zonefs-6.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
  zonefs: Fix error message in zonefs_file_dio_append()
  zonefs: Prevent uninitialized symbol 'size' warning

20 months agonet: mdio: thunder: Add missing fwnode_handle_put()
Liang He [Wed, 22 Mar 2023 06:20:57 +0000 (14:20 +0800)]
net: mdio: thunder: Add missing fwnode_handle_put()

In device_for_each_child_node(), we should add fwnode_handle_put()
when break out of the iteration device_for_each_child_node()
as it will automatically increase and decrease the refcounter.

Fixes: 379d7ac7ca31 ("phy: mdio-thunder: Add driver for Cavium Thunder SoC MDIO buses.")
Signed-off-by: Liang He <windhl@126.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agonet/sched: act_api: use the correct TCA_ACT attributes in dump
Pedro Tammela [Tue, 21 Mar 2023 22:33:45 +0000 (19:33 -0300)]
net/sched: act_api: use the correct TCA_ACT attributes in dump

4 places in the act api code are using 'TCA_' definitions where they
should be using 'TCA_ACT_', which is confusing for the reader, although
functionally they are equivalent.

Cc: Hangbin Liu <haliu@redhat.com>
Reviewed-by: Jamal Hadi Salim <jhs@mojatatu.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
Acked-by: Hangbin Liu <haliu@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agoMerge branch '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue
David S. Miller [Thu, 23 Mar 2023 08:35:22 +0000 (08:35 +0000)]
Merge branch '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue

Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2023-03-21 (igb, igbvf, igc)

This series contains updates to igb, igbvf, and igc drivers.

Andrii changes igb driver to utilize diff_by_scaled_ppm() implementation
over an open-coded version.

Dawid adds pci_error_handlers for reset_prepare and reset_done for
igbvf.

Sasha removes unnecessary code in igc.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agoMerge branch 'ipv4-address-protocol'
David S. Miller [Thu, 23 Mar 2023 08:32:53 +0000 (08:32 +0000)]
Merge branch 'ipv4-address-protocol'

Petr Machata says:

====================
net: Allow changing IPv4 address protocol

IPv4 and IPv6 addresses can be assigned a protocol value that indicates the
provenance of the IP address. The attribute is modeled after ip route
protocols, and essentially allows the administrator or userspace stack to
tag addresses in some way that makes sense to the actor in question.

When IP address protocol field was added in commit 47f0bd503210 ("net: Add
new protocol attribute to IP addresses"), the semantics included the
ability to change the protocol for IPv6 addresses, but not for IPv4
addresses. It seems this was not deliberate, but rather by accident.

One particular use case is tagging the addresses differently depending on
whether the routing stack should advertise them or not. Without support for
protocol replacement, this can not be done.

In this patchset, extend IPv4 to allow changing the protocol defined at an
address (in patch #1). Then in patches #2 and #3 add selftest coverage for
ip address protocols.

Currently the kernel simply ignores the new value. Thus allowing the
replacement changes the observable behavior. However, since IPv6 already
behaves like this anyway, and since the feature as such is relatively new,
it seems like the change is safe to make.

An example session with the feature in action:

bash-5.2# ip address add dev d 192.0.2.1/28 proto 0xab
bash-5.2# ip address show dev d
4: d: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 06:29:74:fd:1f:eb brd ff:ff:ff:ff:ff:ff
    inet 192.0.2.1/28 scope global proto 0xab d
       valid_lft forever preferred_lft forever

bash-5.2# ip address replace dev d 192.0.2.1/28 proto 0x11
bash-5.2# ip address show dev d
4: d: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 06:29:74:fd:1f:eb brd ff:ff:ff:ff:ff:ff
    inet 192.0.2.1/28 scope global proto 0x11 d
       valid_lft forever preferred_lft forever
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agoselftests: rtnetlink: Add an address proto test
Petr Machata [Tue, 21 Mar 2023 11:52:01 +0000 (12:52 +0100)]
selftests: rtnetlink: Add an address proto test

Add coverage of "ip address {add,replace} ... proto" support.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agoselftests: rtnetlink: Make the set of tests to run configurable
Petr Machata [Tue, 21 Mar 2023 11:52:00 +0000 (12:52 +0100)]
selftests: rtnetlink: Make the set of tests to run configurable

Extract the list of all tests into a variable, ALL_TESTS. Then assume the
environment variable TESTS holds the list of tests to actually run, falling
back to ALL_TESTS if TESTS is empty. This is the same interface that
forwarding selftests use to make the set of tests to run configurable.
In addition to this, allow setting the value explicitly through a command
line option "-t" along the lines of what fib_nexthops.sh does.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
20 months agonet: ipv4: Allow changing IPv4 address protocol
Petr Machata [Tue, 21 Mar 2023 11:51:59 +0000 (12:51 +0100)]
net: ipv4: Allow changing IPv4 address protocol

When IP address protocol field was added in commit 47f0bd503210 ("net: Add
new protocol attribute to IP addresses"), the semantics included the
ability to change the protocol for IPv6 addresses, but not for IPv4
addresses. It seems this was not deliberate, but rather by accident.

A userspace that wants to change the protocol of an address might drop and
recreate the address, but that disrupts routing and is just impractical.

So in this patch, when an IPv4 address is replaced (through RTM_NEWADDR
request with NLM_F_REPLACE flag), update the proto at the address to the
one given in the request, or zero if none is given. This matches the
behavior of IPv6. Previously, any new value given was simply ignored.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>