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| author |   Charles McLachlan <cmclachlan@solarflare.com> | 2019-10-31 10:23:23 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-10-31 14:14:53 -0700 |
| commit | eb9a36be7f3ec414700af9a616f035eda1f1e63e (patch) | |
| tree | 07822b06a1e1cae2a4b4282ad42e1ce8e3bf0ff0 /drivers/net/ethernet/sfc/efx.c | |
| parent | sfc: support encapsulation of xdp_frames in efx_tx_buffer (diff) | |
| download | linux-dev-eb9a36be7f3ec414700af9a616f035eda1f1e63e.tar.xz linux-dev-eb9a36be7f3ec414700af9a616f035eda1f1e63e.zip | |
sfc: perform XDP processing on received packets
Adds a field to hold an attached xdp_prog, but never populates it (see
following patch). Also, XDP_TX support is deferred to a later patch
in the series.
Track failures of xdp_rxq_info_reg() via per-queue xdp_rxq_info_valid
flags and a per-nic xdp_rxq_info_failed flag. The per-queue flags are
needed to prevent attempts to xdp_rxq_info_unreg() structs that failed
to register. Possibly the API could be changed in the future to avoid
the need for these flags.
Signed-off-by: Charles McLachlan <cmclachlan@solarflare.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sfc/efx.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/efx.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c index 2fef7402233e..bd0424414781 100644 --- a/drivers/net/ethernet/sfc/efx.c +++ b/drivers/net/ethernet/sfc/efx.c @@ -340,6 +340,8 @@ static int efx_poll(struct napi_struct *napi, int budget) spent = efx_process_channel(channel, budget); + xdp_do_flush_map(); + if (spent < budget) { if (efx_channel_has_rx_queue(channel) && efx->irq_rx_adaptive && @@ -651,7 +653,7 @@ static void efx_start_datapath(struct efx_nic *efx) efx->rx_dma_len = (efx->rx_prefix_size + EFX_MAX_FRAME_LEN(efx->net_dev->mtu) + efx->type->rx_buffer_padding); - rx_buf_len = (sizeof(struct efx_rx_page_state) + + rx_buf_len = (sizeof(struct efx_rx_page_state) + XDP_PACKET_HEADROOM + efx->rx_ip_align + efx->rx_dma_len); if (rx_buf_len <= PAGE_SIZE) { efx->rx_scatter = efx->type->always_rx_scatter; @@ -774,6 +776,7 @@ static void efx_stop_datapath(struct efx_nic *efx) efx_for_each_possible_channel_tx_queue(tx_queue, channel) efx_fini_tx_queue(tx_queue); } + efx->xdp_rxq_info_failed = false; } static void efx_remove_channel(struct efx_channel *channel) |