diff options
| author | Jesper Dangaard Brouer <brouer@redhat.com> | 2018-01-03 13:25:23 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2018-01-06 02:21:21 +0300 |
| commit | 871288248de23d5c87433dcd94910ff813495588 (patch) | |
| tree | 7a223dd7e7120d99875039d96d50b19a939af834 /drivers/net/ethernet/intel/i40e/i40e_ethtool.c | |
| parent | 0ddf543226acacfb9f521dafc6c817d5b04c7b1f (diff) | |
| download | linux-871288248de23d5c87433dcd94910ff813495588.tar.xz | |
i40e: setup xdp_rxq_info
The i40e driver has a special "FDIR" RX-ring (I40E_VSI_FDIR) which is
a sideband channel for configuring/updating the flow director tables.
This (i40e_vsi_)type does not invoke XDP-ebpf code.
As suggested by Björn (V2): Instead of marking this I40E_VSI_FDIR RX-ring
a special case, reverse the logic and only select RX-rings of type
I40E_VSI_MAIN to register xdp_rxq_info's for.
Driver hook points for xdp_rxq_info:
* reg : i40e_setup_rx_descriptors (via i40e_vsi_setup_rx_resources)
* unreg: i40e_free_rx_resources (via i40e_vsi_free_rx_resources)
Tested on actual hardware with samples/bpf program.
V2: Fixed bug in i40e_set_ringparam (memset zero) + match on I40E_VSI_MAIN.
V4: Update patch desc that got out-of-sync with code.
Cc: intel-wired-lan@lists.osuosl.org
Cc: Björn Töpel <bjorn.topel@intel.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/intel/i40e/i40e_ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c index 5f6cf7212d4f..cfd788b4fd7a 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c +++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c @@ -1585,6 +1585,8 @@ static int i40e_set_ringparam(struct net_device *netdev, */ rx_rings[i].desc = NULL; rx_rings[i].rx_bi = NULL; + /* Clear cloned XDP RX-queue info before setup call */ + memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq)); /* this is to allow wr32 to have something to write to * during early allocation of Rx buffers */ |