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!)
25d4dae1a6
Jesper Dangaard Brouer says: ==================== XDP redirect tracepoints I feel this is as far as I can take the tracepoint infrastructure to assist XDP monitoring. Tracepoints comes with a base overhead of 25 nanosec for an attached bpf_prog, and 48 nanosec for using a full perf record. This is problematic for the XDP use-case, but it is very convenient to use the existing perf infrastructure. From a performance perspective, the real solution would be to attach another bpf_prog (that understand xdp_buff), but I'm not sure we want to introduce yet another bpf attach API for this. One thing left is to standardize the possible err return codes, to a limited set, to allow easier (and faster) mapping into a bpf map. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.