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  9. 05 Jul, 2024 5 commits
    • Sebastian Andrzej Siewior's avatar
      tun: Assign missing bpf_net_context. · fecef4cd
      Sebastian Andrzej Siewior authored 
      During the introduction of struct bpf_net_context handling for
XDP-redirect, the tun driver has been missed.
Jakub also pointed out that there is another call chain to
do_xdp_generic() originating from netif_receive_skb() and drivers may
use it outside from the NAPI context.

Set the bpf_net_context before invoking BPF XDP program within the TUN
driver. Set the bpf_net_context also in do_xdp_generic() if a xdp
program is available.

Reported-by: syzbot+0b5c75599f1d872bea6f@syzkaller.appspotmail.com
Reported-by: syzbot+5ae46b237278e2369cac@syzkaller.appspotmail.com
Reported-by: syzbot+c1e04a422bbc0f0f2921@syzkaller.appspotmail.com
Fixes: 401cb7da ("net: Reference bpf_redirect_info via task_struct on PREEMPT_RT.")
Signed-off-by: default avatarSebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://patch.msgid.link/20240704144815.j8xQda5r@linutronix.deSigned-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      fecef4cd
    • Daniel Golle's avatar
      net: ethernet: mediatek: Allow gaps in MAC allocation · 3b2aef99
      Daniel Golle authored 
      Some devices with MediaTek SoCs don't use the first but only the second
MAC in the chip. Especially with MT7981 which got a built-in 1GE PHY
connected to the second MAC this is quite common.
Make sure to reset and enable PSE also in those cases by skipping gaps
using 'continue' instead of aborting the loop using 'break'.

Fixes: dee4dd10 ("net: ethernet: mtk_eth_soc: ppe: add support for multiple PPEs")
Suggested-by: default avatarElad Yifee <eladwf@gmail.com>
Signed-off-by: default avatarDaniel Golle <daniel@makrotopia.org>
Reviewed-by: default avatarPrzemek Kitszel <przemyslaw.kitszel@intel.com>
Link: https://patch.msgid.link/379ae584cea112db60f4ada79c7e5ba4f3364a64.1719862038.git.daniel@makrotopia.orgSigned-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      3b2aef99
    • Florian Westphal's avatar
      openvswitch: prepare for stolen verdict coming from conntrack and nat engine · c7f79f26
      Florian Westphal authored 
      At this time, conntrack either returns NF_ACCEPT or NF_DROP.
To improve debuging it would be nice to be able to replace NF_DROP
verdict with NF_DROP_REASON() helper,

This helper releases the skb instantly (so drop_monitor can pinpoint
precise location) and returns NF_STOLEN.

Prepare call sites to deal with this before introducing such changes
in conntrack and nat core.
Signed-off-by: default avatarFlorian Westphal <fw@strlen.de>
Reviewed-by: default avatarAaron Conole <aconole@redhat.om>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      c7f79f26
    • David S. Miller's avatar
      Merge branch 'pcs-xpcs-mmap' into main · aba43bdf
      David S. Miller authored 
      Serge Semin <fancer says:

====================
net: pcs: xpcs: Add memory-mapped device support

The main goal of this series is to extend the DW XPCS device support in
the kernel. Particularly the patchset adds a support of the DW XPCS
device with the MCI/APB3 IO interface registered as a platform device. In
order to have them utilized by the DW XPCS core the fwnode-based DW XPCS
descriptor creation procedure has been introduced. Finally the STMMAC
driver has been altered to support the DW XPCS passed via the 'pcs-handle'
property.

Note the series has been significantly re-developed since v1. So I even
had to change the subject. Anyway I've done my best to take all the noted
into account.

The series traditionally starts with a set of the preparation patches.
First one just moves the generic DW XPCS IDs macros from the internal
header file to the external one where some other IDs also reside. Second
patch splits up the xpcs_create() method to a set of the coherent
sub-functions for the sake of the further easier updates and to have it
looking less complicated. The goal of the next three patches is to extend
the DW XPCS ID management code by defining a new dw_xpcs_info structure
with both PCS and PMA IDs.

The next two patches provide the DW XPCS device DT-bindings and the
respective platform-device driver for the memory-mapped DW XPCS devices.
Besides the later patch makes use of the introduced dw_xpcs_info structure
to pre-define the DW XPCS IDs based on the platform-device compatible
string. Thus if there is no way to auto-identify the XPCS device
capabilities it can be done based on the custom device IDs passed via the
MDIO-device platform data.

Final DW XPCS driver change is about adding a new method of the DW XPCS
descriptor creation. The xpcs_create_fwnode() function has been introduced
with the same semantics as a similar method recently added to the Lynx PCS
driver. It's supposed to be called with the fwnode pointing to the DW XPCS
device node, for which the XPCS descriptor will be created.

The series is terminated with two STMMAC driver patches. The former one
simplifies the DW XPCS descriptor registration procedure by dropping the
MDIO-bus scanning and creating the descriptor for the particular device
address. The later patch alters the STMMAC PCS setup method so one would
support the DW XPCS specified via the "pcs-handle" property.

That's it for now. Thanks for review in advance. Any tests are very
welcome. After this series is merged in, I'll submit another one which
adds the generic 10GBase-R and 10GBase-X interfaces support to the STMMAC
and DW XPCS driver with the proper CSRs re-initialization, PMA
initialization and reference clock selection as it's described in the
Synopsys DW XPCS HW manual.

Link: https://lore.kernel.org/netdev/20231205103559.9605-1-fancer.lancer@gmail.com
Changelog v2:
- Drop the patches:
  [PATCH net-next 01/16] net: pcs: xpcs: Drop sentinel entry from 2500basex ifaces list
  [PATCH net-next 02/16] net: pcs: xpcs: Drop redundant workqueue.h include directive
  [PATCH net-next 03/16] net: pcs: xpcs: Return EINVAL in the internal methods
  [PATCH net-next 04/16] net: pcs: xpcs: Explicitly return error on caps validation
  as ones have already been merged into the kernel repo:
Link: https://lore.kernel.org/netdev/20240222175843.26919-1-fancer.lancer@gmail.com/
- Drop the patches:
  [PATCH net-next 14/16] net: stmmac: Pass netdev to XPCS setup function
  [PATCH net-next 15/16] net: stmmac: Add dedicated XPCS cleanup method
  as ones have already been merged into the kernel repo:
Link: https://lore.kernel.org/netdev/20240513-rzn1-gmac1-v7-0-6acf58b5440d@bootlin.com/
- Drop the patch:
  [PATCH net-next 06/16] net: pcs: xpcs: Avoid creating dummy XPCS MDIO device
  [PATCH net-next 09/16] net: mdio: Add Synopsys DW XPCS management interface support
  [PATCH net-next 11/16] net: pcs: xpcs: Change xpcs_create_mdiodev() suffix to "byaddr"
  [PATCH net-next 13/16] net: stmmac: intel: Register generic MDIO device
  as no longer relevant.
- Add new patches:
  [PATCH net-next v2 03/10] net: pcs: xpcs: Convert xpcs_id to dw_xpcs_desc
  [PATCH net-next v2 04/10] net: pcs: xpcs: Convert xpcs_compat to dw_xpcs_compat
  [PATCH net-next v2 05/10] net: pcs: xpcs: Introduce DW XPCS info structure
  [PATCH net-next v2 09/10] net: stmmac: Create DW XPCS device with particular address
- Use the xpcs_create_fwnode() function name and semantics similar to the
  Lynx PCS driver.
- Add kdoc describing the DW XPCS registration functions.
- Convert the memory-mapped DW XPCS device driver to being the
  platform-device driver.
- Convert the DW XPCS DT-bindings to defining both memory-mapped and MDIO
  devices.
- Drop inline'es from the methods statically defined in *.c. (@Maxime)
- Preserve the strict refcount-ing pattern. (@Russell)

Link: https://lore.kernel.org/netdev/20240602143636.5839-1-fancer.lancer@gmail.com/
Changelov v3:
- Implement the ordered clocks constraint. (@Rob)
- Convert xpcs_plat_pm_ops to being defined as static. (@Simon)
- Add the "@interface" argument kdoc to the xpcs_create_mdiodev()
  function. (@Simon)
- Fix the "@fwnode" argument name in the xpcs_create_fwnode() method kdoc.
  (@Simon)
- Move the return value descriptions to the "Return:" section of the
  xpcs_create_mdiodev() and xpcs_create_fwnode() kdoc. (@Simon)
- Drop stmmac_mdio_bus_data::has_xpcs flag and define the PCS-address
  mask with particular XPCS address instead.

Link: https://lore.kernel.org/netdev/20240627004142.8106-1-fancer.lancer@gmail.com/
Changelog v4:
- Make sure the series is applicable to the net-next tree. (@Vladimir)
- Rename entry to desc in the xpcs_init_id() method. (@Andrew)
- Add a comment to the clock-names property constraint about the
  oneOf-subschemas applicability. (@Conor)
- Convert "pclk" clock name to "csr" to match the DW XPCS IP-core
  input signal name. (@Rob)
====================
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      aba43bdf
    • Serge Semin's avatar
      net: stmmac: Add DW XPCS specified via "pcs-handle" support · 357768c7
      Serge Semin authored 
      Recently the DW XPCS DT-bindings have been introduced and the DW XPCS
driver has been altered to support the DW XPCS registered as a platform
device. In order to have the DW XPCS DT-device accessed from the STMMAC
driver let's alter the STMMAC PCS-setup procedure to support the
"pcs-handle" property containing the phandle reference to the DW XPCS
device DT-node. The respective fwnode will be then passed to the
xpcs_create_fwnode() function which in its turn will create the DW XPCS
descriptor utilized in the main driver for the PCS-related setups.
Signed-off-by: default avatarSerge Semin <fancer.lancer@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      357768c7
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