diff options
| author | Ioana Radulescu <ruxandra.radulescu@nxp.com> | 2019-03-01 17:47:24 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-03-03 20:41:18 -0800 |
| commit | d678be1dc1ec59eee1f733ff603f601469ff368d (patch) | |
| tree | 12923e831755129843737322963c37ff0bf5e4fe /drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h | |
| parent | e3fdf6ba09a082175d3b0f85a4253702918e7582 (diff) | |
dpaa2-eth: add XDP_REDIRECT support
Implement support for the XDP_REDIRECT action.
The redirected frame is transmitted and confirmed on the regular Tx/Tx
conf queues. Frame is marked with the "XDP" type in the software
annotation, since it requires special treatment.
We don't have good hardware support for TX batching, so the
XDP_XMIT_FLUSH flag doesn't make a difference for now; ndo_xdp_xmit
performs the actual Tx operation on the spot.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h')
| -rw-r--r-- | drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h index 423976d97fa6..7879622aa3e6 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h @@ -95,6 +95,7 @@ enum dpaa2_eth_swa_type { DPAA2_ETH_SWA_SINGLE, DPAA2_ETH_SWA_SG, + DPAA2_ETH_SWA_XDP, }; /* Must keep this struct smaller than DPAA2_ETH_SWA_SIZE */ @@ -110,6 +111,10 @@ struct dpaa2_eth_swa { int num_sg; int sgt_size; } sg; + struct { + int dma_size; + struct xdp_frame *xdpf; + } xdp; }; }; @@ -273,6 +278,7 @@ struct dpaa2_eth_ch_stats { __u64 xdp_drop; __u64 xdp_tx; __u64 xdp_tx_err; + __u64 xdp_redirect; }; /* Maximum number of queues associated with a DPNI */ @@ -312,6 +318,7 @@ struct dpaa2_eth_ch_xdp { struct bpf_prog *prog; u64 drop_bufs[DPAA2_ETH_BUFS_PER_CMD]; int drop_cnt; + unsigned int res; }; struct dpaa2_eth_channel { @@ -326,6 +333,7 @@ struct dpaa2_eth_channel { int buf_count; struct dpaa2_eth_ch_stats stats; struct dpaa2_eth_ch_xdp xdp; + struct xdp_rxq_info xdp_rxq; }; struct dpaa2_eth_dist_fields { @@ -446,6 +454,12 @@ unsigned int dpaa2_eth_needed_headroom(struct dpaa2_eth_priv *priv, { unsigned int headroom = DPAA2_ETH_SWA_SIZE; + /* If we don't have an skb (e.g. XDP buffer), we only need space for + * the software annotation area + */ + if (!skb) + return headroom; + /* For non-linear skbs we have no headroom requirement, as we build a * SG frame with a newly allocated SGT buffer */ |