diff options
| author | Alexandre Rames <arames@solarflare.com> | 2014-07-22 17:03:25 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-07-23 06:55:20 +0400 |
| commit | 36763266bbe8a2e93a7639b99bac2fee2c42bc5b (patch) | |
| tree | 5fdf487376e5f0f8dedb6fa395eb7c150e00b789 /drivers/net/ethernet/sfc/rx.c | |
| parent | 2dbe82d0d11836279703dcf2679e711e18c23eec (diff) | |
| download | linux-36763266bbe8a2e93a7639b99bac2fee2c42bc5b.tar.xz | |
sfc: Add support for busy polling
This patch adds the sfc driver code for implementing busy polling.
It adds ndo_busy_poll method and locking between it and napi poll.
It also adds each napi to the napi_hash right after netif_napi_add().
Uses efx_start_eventq and efx_stop_eventq in the self tests.
Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sfc/rx.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/rx.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/net/ethernet/sfc/rx.c b/drivers/net/ethernet/sfc/rx.c index a7bb63a7a521..c0ad95d2f63d 100644 --- a/drivers/net/ethernet/sfc/rx.c +++ b/drivers/net/ethernet/sfc/rx.c @@ -462,6 +462,7 @@ efx_rx_packet_gro(struct efx_channel *channel, struct efx_rx_buffer *rx_buf, skb_record_rx_queue(skb, channel->rx_queue.core_index); + skb_mark_napi_id(skb, &channel->napi_str); gro_result = napi_gro_frags(napi); if (gro_result != GRO_DROP) channel->irq_mod_score += 2; @@ -520,6 +521,8 @@ static struct sk_buff *efx_rx_mk_skb(struct efx_channel *channel, /* Move past the ethernet header */ skb->protocol = eth_type_trans(skb, efx->net_dev); + skb_mark_napi_id(skb, &channel->napi_str); + return skb; } @@ -666,7 +669,8 @@ void __efx_rx_packet(struct efx_channel *channel) if (unlikely(!(efx->net_dev->features & NETIF_F_RXCSUM))) rx_buf->flags &= ~EFX_RX_PKT_CSUMMED; - if ((rx_buf->flags & EFX_RX_PKT_TCP) && !channel->type->receive_skb) + if ((rx_buf->flags & EFX_RX_PKT_TCP) && !channel->type->receive_skb && + !efx_channel_busy_polling(channel)) efx_rx_packet_gro(channel, rx_buf, channel->rx_pkt_n_frags, eh); else efx_rx_deliver(channel, eh, rx_buf, channel->rx_pkt_n_frags); |