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![]() Maciej Fijalkowski says: ==================== net: bpf_xdp_adjust_tail() and Intel mbuf fixes Hey, after a break followed by dealing with sickness, here is a v6 that makes bpf_xdp_adjust_tail() actually usable for ZC drivers that support XDP multi-buffer. Since v4 I tried also using bpf_xdp_adjust_tail() with positive offset which exposed yet another issues, which can be observed by increased commit count when compared to v3. John, in the end I think we should remove handling MEM_TYPE_XSK_BUFF_POOL from __xdp_return(), but it is out of the scope for fixes set, IMHO. Thanks, Maciej v6: - add acks [Magnus] - fix spelling mistakes [Magnus] - avoid touching xdp_buff in xp_alloc_{reused,new_from_fq}() [Magnus] - s/shrink_data/bpf_xdp_shrink_data [Jakub] - remove __shrink_data() [Jakub] - check retvals from __xdp_rxq_info_reg() [Magnus] v5: - pick correct version of patch 5 [Simon] - elaborate a bit more on what patch 2 fixes v4: - do not clear frags flag when deleting tail; xsk_buff_pool now does that - skip some NULL tests for xsk_buff_get_tail [Martin, John] - address problems around registering xdp_rxq_info - fix bpf_xdp_frags_increase_tail() for ZC mbuf v3: - add acks - s/xsk_buff_tail_del/xsk_buff_del_tail - address i40e as well (thanks Tirthendu) v2: - fix !CONFIG_XDP_SOCKETS builds - add reviewed-by tag to patch 3 ==================== Link: https://lore.kernel.org/r/20240124191602.566724-1-maciej.fijalkowski@intel.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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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.