diff options
Diffstat (limited to 'drivers/net/ethernet/sfc/net_driver.h')
| -rw-r--r-- | drivers/net/ethernet/sfc/net_driver.h | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h index 7ef823d7a89a..3b49e216768b 100644 --- a/drivers/net/ethernet/sfc/net_driver.h +++ b/drivers/net/ethernet/sfc/net_driver.h @@ -56,7 +56,8 @@ #define EFX_MAX_RX_QUEUES EFX_MAX_CHANNELS #define EFX_EXTRA_CHANNEL_IOV 0 #define EFX_EXTRA_CHANNEL_PTP 1 -#define EFX_MAX_EXTRA_CHANNELS 2U +#define EFX_EXTRA_CHANNEL_TC 2 +#define EFX_MAX_EXTRA_CHANNELS 3U /* Checksum generation is a per-queue option in hardware, so each * queue visible to the networking core is backed by two hardware TX @@ -363,8 +364,12 @@ struct efx_rx_page_state { * @refill_enabled: Enable refill whenever fill level is low * @flush_pending: Set when a RX flush is pending. Has the same lifetime as * @rxq_flush_pending. + * @grant_credits: Posted RX descriptors need to be granted to the MAE with + * %MC_CMD_MAE_COUNTERS_STREAM_GIVE_CREDITS. For %EFX_EXTRA_CHANNEL_TC, + * and only supported on EF100. * @added_count: Number of buffers added to the receive queue. * @notified_count: Number of buffers given to NIC (<= @added_count). + * @granted_count: Number of buffers granted to the MAE (<= @notified_count). * @removed_count: Number of buffers removed from the receive queue. * @scatter_n: Used by NIC specific receive code. * @scatter_len: Used by NIC specific receive code. @@ -385,6 +390,7 @@ struct efx_rx_page_state { * refill was triggered. * @recycle_count: RX buffer recycle counter. * @slow_fill: Timer used to defer efx_nic_generate_fill_event(). + * @grant_work: workitem used to grant credits to the MAE if @grant_credits * @xdp_rxq_info: XDP specific RX queue information. * @xdp_rxq_info_valid: Is xdp_rxq_info valid data?. */ @@ -396,9 +402,11 @@ struct efx_rx_queue { unsigned int ptr_mask; bool refill_enabled; bool flush_pending; + bool grant_credits; unsigned int added_count; unsigned int notified_count; + unsigned int granted_count; unsigned int removed_count; unsigned int scatter_n; unsigned int scatter_len; @@ -416,6 +424,7 @@ struct efx_rx_queue { unsigned int recycle_count; struct timer_list slow_fill; unsigned int slow_fill_count; + struct work_struct grant_work; /* Statistics to supplement MAC stats */ unsigned long rx_packets; struct xdp_rxq_info xdp_rxq_info; @@ -577,12 +586,15 @@ struct efx_msi_context { * struct efx_channel_type - distinguishes traffic and extra channels * @handle_no_channel: Handle failure to allocate an extra channel * @pre_probe: Set up extra state prior to initialisation + * @start: called early in efx_start_channels() + * @stop: called early in efx_stop_channels() * @post_remove: Tear down extra state after finalisation, if allocated. * May be called on channels that have not been probed. * @get_name: Generate the channel's name (used for its IRQ handler) * @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() + * @receive_raw: Handle an RX buffer ready to be passed to __efx_rx_packet() * @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 @@ -593,10 +605,13 @@ struct efx_msi_context { struct efx_channel_type { void (*handle_no_channel)(struct efx_nic *); int (*pre_probe)(struct efx_channel *); + int (*start)(struct efx_channel *); + void (*stop)(struct efx_channel *); void (*post_remove)(struct efx_channel *); 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 (*receive_raw)(struct efx_rx_queue *, u32); bool (*want_txqs)(struct efx_channel *); bool keep_eventq; bool want_pio; |