diff options
| author | Stuart Hodgson <smhodgson@solarflare.com> | 2012-07-16 17:08:33 +0100 |
|---|---|---|
| committer | Ben Hutchings <bhutchings@solarflare.com> | 2012-09-07 21:13:38 +0100 |
| commit | 79d68b370074044d7a9dd789ee103ffe5ef00bda (patch) | |
| tree | e516dcdfd499499fa718ddb6bdf6b7c7210c30fc /drivers/net/ethernet/sfc | |
| parent | 220a60a425146b0e37998cc0b3082f0541aad866 (diff) | |
| download | linux-79d68b370074044d7a9dd789ee103ffe5ef00bda.tar.gz | |
sfc: Add explicit RX queue flag to channel
The PTP channel will have its own RX queue even though it's not a regular traffic channel. Original work by Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Stuart Hodgson <smhodgson@solarflare.com> Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Diffstat (limited to 'drivers/net/ethernet/sfc')
| -rw-r--r-- | drivers/net/ethernet/sfc/efx.c | 8 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/net_driver.h | 5 | ||||
| -rw-r--r-- | drivers/net/ethernet/sfc/rx.c | 7 |
3 files changed, 16 insertions, 4 deletions
diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c index a606db43c5ba..342a1f31e5b8 100644 --- a/drivers/net/ethernet/sfc/efx.c +++ b/drivers/net/ethernet/sfc/efx.c @@ -1451,10 +1451,16 @@ static void efx_set_channels(struct efx_nic *efx) efx->tx_channel_offset = separate_tx_channels ? efx->n_channels - efx->n_tx_channels : 0; - /* We need to adjust the TX queue numbers if we have separate + /* We need to mark which channels really have RX and TX + * queues, and adjust the TX queue numbers if we have separate * RX-only and TX-only channels. */ efx_for_each_channel(channel, efx) { + if (channel->channel < efx->n_rx_channels) + channel->rx_queue.core_index = channel->channel; + else + channel->rx_queue.core_index = -1; + efx_for_each_channel_tx_queue(tx_queue, channel) tx_queue->queue -= (efx->tx_channel_offset * EFX_TXQ_TYPES); diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h index 7ab1232494ef..24a78a35bddb 100644 --- a/drivers/net/ethernet/sfc/net_driver.h +++ b/drivers/net/ethernet/sfc/net_driver.h @@ -242,6 +242,8 @@ struct efx_rx_page_state { /** * struct efx_rx_queue - An Efx RX queue * @efx: The associated Efx NIC + * @core_index: Index of network core RX queue. Will be >= 0 iff this + * is associated with a real RX queue. * @buffer: The software buffer ring * @rxd: The hardware descriptor ring * @ptr_mask: The size of the ring minus 1. @@ -263,6 +265,7 @@ struct efx_rx_page_state { */ struct efx_rx_queue { struct efx_nic *efx; + int core_index; struct efx_rx_buffer *buffer; struct efx_special_buffer rxd; unsigned int ptr_mask; @@ -1047,7 +1050,7 @@ static inline bool efx_tx_queue_used(struct efx_tx_queue *tx_queue) static inline bool efx_channel_has_rx_queue(struct efx_channel *channel) { - return channel->channel < channel->efx->n_rx_channels; + return channel->rx_queue.core_index >= 0; } static inline struct efx_rx_queue * diff --git a/drivers/net/ethernet/sfc/rx.c b/drivers/net/ethernet/sfc/rx.c index 719319b89d7a..e997f83f14f5 100644 --- a/drivers/net/ethernet/sfc/rx.c +++ b/drivers/net/ethernet/sfc/rx.c @@ -479,7 +479,7 @@ static void efx_rx_packet_gro(struct efx_channel *channel, skb->ip_summed = ((rx_buf->flags & EFX_RX_PKT_CSUMMED) ? CHECKSUM_UNNECESSARY : CHECKSUM_NONE); - skb_record_rx_queue(skb, channel->channel); + skb_record_rx_queue(skb, channel->rx_queue.core_index); gro_result = napi_gro_frags(napi); } else { @@ -571,6 +571,9 @@ static void efx_rx_deliver(struct efx_channel *channel, /* Set the SKB flags */ skb_checksum_none_assert(skb); + /* Record the rx_queue */ + skb_record_rx_queue(skb, channel->rx_queue.core_index); + /* Pass the packet up */ netif_receive_skb(skb); @@ -608,7 +611,7 @@ void __efx_rx_packet(struct efx_channel *channel, struct efx_rx_buffer *rx_buf) * at the ethernet header */ skb->protocol = eth_type_trans(skb, efx->net_dev); - skb_record_rx_queue(skb, channel->channel); + skb_record_rx_queue(skb, channel->rx_queue.core_index); } if (unlikely(!(efx->net_dev->features & NETIF_F_RXCSUM))) |