diff options
| author | Edward Cree <ecree@solarflare.com> | 2018-01-25 17:26:06 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-01-25 16:05:14 -0500 |
| commit | 2935e3c38228ad9bf073eeb0eedff5849eea63db (patch) | |
| tree | 34ca28b1afdbce735a4326d077a96a8e304599ab /drivers/net/ethernet/sfc/net_driver.h | |
| parent | c1d0d33946725775be1c68515c07d0ff8237d222 (diff) | |
sfc: on 8000 series use TX queues for TX timestamps
For this we create and use one or more new TX queues on the PTP channel,
and enable sync events for it.
Based on a patch by Martin Habets <mhabets@solarflare.com>.
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sfc/net_driver.h')
| -rw-r--r-- | drivers/net/ethernet/sfc/net_driver.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h index 6b9935f65cfa..d20a8660ee48 100644 --- a/drivers/net/ethernet/sfc/net_driver.h +++ b/drivers/net/ethernet/sfc/net_driver.h @@ -531,8 +531,12 @@ struct efx_msi_context { * @copy: Copy the channel state prior to reallocation. May be %NULL if * reallocation is not supported. * @receive_skb: Handle an skb ready to be passed to netif_receive_skb() + * @want_txqs: Determine whether this channel should have TX queues + * created. If %NULL, TX queues are not created. * @keep_eventq: Flag for whether event queue should be kept initialised * while the device is stopped + * @want_pio: Flag for whether PIO buffers should be linked to this + * channel's TX queues. */ struct efx_channel_type { void (*handle_no_channel)(struct efx_nic *); @@ -541,7 +545,9 @@ struct efx_channel_type { void (*get_name)(struct efx_channel *, char *buf, size_t len); struct efx_channel *(*copy)(const struct efx_channel *); bool (*receive_skb)(struct efx_channel *, struct sk_buff *); + bool (*want_txqs)(struct efx_channel *); bool keep_eventq; + bool want_pio; }; enum efx_led_mode { @@ -744,6 +750,7 @@ struct vfdi_status; * @n_channels: Number of channels in use * @n_rx_channels: Number of channels used for RX (= number of RX queues) * @n_tx_channels: Number of channels used for TX + * @n_extra_tx_channels: Number of extra channels with TX queues * @rx_ip_align: RX DMA address offset to have IP header aligned in * in accordance with NET_IP_ALIGN * @rx_dma_len: Current maximum RX DMA length @@ -890,6 +897,7 @@ struct efx_nic { unsigned rss_spread; unsigned tx_channel_offset; unsigned n_tx_channels; + unsigned n_extra_tx_channels; unsigned int rx_ip_align; unsigned int rx_dma_len; unsigned int rx_buffer_order; @@ -1372,8 +1380,8 @@ efx_get_tx_queue(struct efx_nic *efx, unsigned index, unsigned type) static inline bool efx_channel_has_tx_queues(struct efx_channel *channel) { - return channel->channel - channel->efx->tx_channel_offset < - channel->efx->n_tx_channels; + return channel->type && channel->type->want_txqs && + channel->type->want_txqs(channel); } static inline struct efx_tx_queue * |