i40e: fix xdp handle calculations
authorKevin Laatz <kevin.laatz@intel.com>
Thu, 5 Sep 2019 01:11:44 +0000 (01:11 +0000)
committerDaniel Borkmann <daniel@iogearbox.net>
Thu, 5 Sep 2019 11:53:02 +0000 (13:53 +0200)
commit4c5d9a7fa149a8725defa0bda6eeb5f36998ae64
treef5a066140891afc266a46962c533f28a8fc1758b
parent110509df4540c7ad9323e53acc37c458a586e9c6
i40e: fix xdp handle calculations

Currently, we don't add headroom to the handle in i40e_zca_free,
i40e_alloc_buffer_slow_zc and i40e_alloc_buffer_zc. The addition of the
headroom to the handle was removed in
commit 2f86c806a8a8 ("i40e: modify driver for handling offsets"), which
will break things when headroom is non-zero. This patch fixes this and uses
xsk_umem_adjust_offset to add it appropritely based on the mode being run.

Fixes: 2f86c806a8a8 ("i40e: modify driver for handling offsets")
Reported-by: Bjorn Topel <bjorn.topel@intel.com>
Signed-off-by: Kevin Laatz <kevin.laatz@intel.com>
Acked-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
drivers/net/ethernet/intel/i40e/i40e_xsk.c