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| author | Björn Töpel <bjorn.topel@intel.com> | 2018-05-02 14:01:23 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2018-05-04 01:55:23 +0300 |
| commit | c0c77d8fb787cfe0c3fca689c2a30d1dad4eaba7 (patch) | |
| tree | 04413efa068765eb74d50fbb1ab6a4318f3d606f /net/xdp/xsk_queue.c | |
| parent | 68e8b849b221b37a78a110a0307717d45e3593a0 (diff) | |
| download | linux-c0c77d8fb787cfe0c3fca689c2a30d1dad4eaba7.tar.xz | |
xsk: add user memory registration support sockopt
In this commit the base structure of the AF_XDP address family is set
up. Further, we introduce the abilty register a window of user memory
to the kernel via the XDP_UMEM_REG setsockopt syscall. The memory
window is viewed by an AF_XDP socket as a set of equally large
frames. After a user memory registration all frames are "owned" by the
user application, and not the kernel.
v2: More robust checks on umem creation and unaccount on error.
Call set_page_dirty_lock on cleanup.
Simplified xdp_umem_reg.
Co-authored-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'net/xdp/xsk_queue.c')
0 files changed, 0 insertions, 0 deletions