diff options
| author | Andy Gospodarek | 2019-07-08 23:53:03 +0200 |
|---|---|---|
| committer | David S. Miller | 2019-07-09 00:15:24 +0200 |
| commit | f18c2b77b2e4eec2313d519ba125bd6a069513cf (patch) | |
| tree | 0c0ccfd11aa69999647c2604e43b428e5b896318 /drivers/net/ethernet/broadcom/bnxt/bnxt.c | |
| parent | bnxt_en: Refactor __bnxt_xmit_xdp(). (diff) | |
| download | kernel-qcow2-linux-f18c2b77b2e4eec2313d519ba125bd6a069513cf.tar.gz kernel-qcow2-linux-f18c2b77b2e4eec2313d519ba125bd6a069513cf.tar.xz kernel-qcow2-linux-f18c2b77b2e4eec2313d519ba125bd6a069513cf.zip | |
bnxt_en: optimized XDP_REDIRECT support
This adds basic support for XDP_REDIRECT in the bnxt_en driver. Next
patch adds the more optimized page pool support.
Signed-off-by: Andy Gospodarek <gospo@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/broadcom/bnxt/bnxt.c')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index b7b62273c955..d8f0846719e1 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -1989,6 +1989,9 @@ static int __bnxt_poll_work(struct bnxt *bp, struct bnxt_cp_ring_info *cpr, } } + if (event & BNXT_REDIRECT_EVENT) + xdp_do_flush_map(); + if (event & BNXT_TX_EVENT) { struct bnxt_tx_ring_info *txr = bnapi->tx_ring; u16 prod = txr->tx_prod; @@ -2254,9 +2257,23 @@ static void bnxt_free_tx_skbs(struct bnxt *bp) for (j = 0; j < max_idx;) { struct bnxt_sw_tx_bd *tx_buf = &txr->tx_buf_ring[j]; - struct sk_buff *skb = tx_buf->skb; + struct sk_buff *skb; int k, last; + if (i < bp->tx_nr_rings_xdp && + tx_buf->action == XDP_REDIRECT) { + dma_unmap_single(&pdev->dev, + dma_unmap_addr(tx_buf, mapping), + dma_unmap_len(tx_buf, len), + PCI_DMA_TODEVICE); + xdp_return_frame(tx_buf->xdpf); + tx_buf->action = 0; + tx_buf->xdpf = NULL; + j++; + continue; + } + + skb = tx_buf->skb; if (!skb) { j++; continue; @@ -2517,6 +2534,13 @@ static int bnxt_alloc_rx_rings(struct bnxt *bp) if (rc < 0) return rc; + rc = xdp_rxq_info_reg_mem_model(&rxr->xdp_rxq, + MEM_TYPE_PAGE_SHARED, NULL); + if (rc) { + xdp_rxq_info_unreg(&rxr->xdp_rxq); + return rc; + } + rc = bnxt_alloc_ring(bp, &ring->ring_mem); if (rc) return rc; @@ -10233,6 +10257,7 @@ static const struct net_device_ops bnxt_netdev_ops = { .ndo_udp_tunnel_add = bnxt_udp_tunnel_add, .ndo_udp_tunnel_del = bnxt_udp_tunnel_del, .ndo_bpf = bnxt_xdp, + .ndo_xdp_xmit = bnxt_xdp_xmit, .ndo_bridge_getlink = bnxt_bridge_getlink, .ndo_bridge_setlink = bnxt_bridge_setlink, .ndo_get_devlink_port = bnxt_get_devlink_port, |