Linux mainline fork with MSM8998 patches | https://mainline.space | Currently supported devices:
OnePlus 5/5T, Xiaomi Mi 6, F(x)tec Pro¹ (2019 QX1000 model) & Sony Xperia XZ Premium (UNTESTED!)
113cb8ffd8
Vladimir Oltean says: ==================== Traffic support for dsa_8021q in vlan_filtering=1 mode This series is an attempt to support as much as possible in terms of traffic I/O from the network stack with the only dsa_8021q user thus far, sja1105. The hardware doesn't support pushing a second VLAN tag to packets that are already tagged, so our only option is to combine the dsa_8021q with the user tag into a single tag and decode that on the CPU. The assumption is that there is a type of use cases for which 7 VLANs per port are more than sufficient, and that there's another type of use cases where the full 4096 entries are barely enough. Those use cases are very different from one another, so I prefer trying to give both the best experience by creating this best_effort_vlan_filtering knob to select the mode in which they want to operate in. v2 was submitted here: https://patchwork.ozlabs.org/project/netdev/cover/20200511135338.20263-1-olteanv@gmail.com/ v1 was submitted here: https://patchwork.ozlabs.org/project/netdev/cover/20200510164255.19322-1-olteanv@gmail.com/ Changes in v3: Patch 01/15: - Rename again to configure_vlan_while_not_filtering, and add a helper function for skipping VLAN configuration. Patch 03/15: - Remove sja1105_can_use_vlan_as_tags from driver code. Patch 06/15: - Adapt sja1105 driver to the second variable name change. Patch 08/15: - Provide an implementation of sja1105_can_use_vlan_as_tags as part of the tagger and not as part of the switch driver. So we have to look at the skb only, and not at the VLAN awareness state. Changes in v2: Patch 01/15: - Rename variable from vlan_bridge_vtu to configure_vlans_while_disabled. Patch 03/15: - Be much more thorough, and make sure that things like virtual links and FDB operations still work properly. Patch 05/15: - Free the vlan lists on teardown. - Simplify sja1105_classify_vlan: only look at priv->expect_dsa_8021q. - Keep vid 1 in the list of dsa_8021q VLANs, to make sure that untagged packets transmitted from the stack, like PTP, continue to work in VLAN-unaware mode. Patch 06/15: - Adapt to vlan_bridge_vtu variable name change. Patch 11/15: - In sja1105_best_effort_vlan_filtering_set, get the vlan_filtering value of each port instead of just one time for port 0. Normally this shouldn't matter, but it avoids issues when port 0 is disabled in device tree. Patch 14/14: - Only do anything in sja1105_build_subvlans and in sja1105_build_crosschip_subvlans when operating in SJA1105_VLAN_BEST_EFFORT state. This avoids installing VLAN retagging rules in unaware mode, which would cost us a penalty in terms of usable frame memory. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
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| init | ||
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| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.