diff options
Diffstat (limited to 'drivers/net/ethernet/sfc/net_driver.h')
| -rw-r--r-- | drivers/net/ethernet/sfc/net_driver.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h index 9791fac0b649..7bb7ecb480ae 100644 --- a/drivers/net/ethernet/sfc/net_driver.h +++ b/drivers/net/ethernet/sfc/net_driver.h @@ -173,6 +173,7 @@ struct efx_tx_buffer { #define EFX_TX_BUF_MAP_SINGLE 8 /* buffer was mapped with dma_map_single() */ #define EFX_TX_BUF_OPTION 0x10 /* empty buffer for option descriptor */ #define EFX_TX_BUF_XDP 0x20 /* buffer was sent with XDP */ +#define EFX_TX_BUF_TSO_V3 0x40 /* empty buffer for a TSO_V3 descriptor */ /** * struct efx_tx_queue - An Efx TX queue @@ -245,6 +246,7 @@ struct efx_tx_buffer { * @pio_packets: Number of times the TX PIO feature has been used * @xmit_more_available: Are any packets waiting to be pushed to the NIC * @cb_packets: Number of times the TX copybreak feature has been used + * @notify_count: Count of notified descriptors to the NIC * @empty_read_count: If the completion path has seen the queue as empty * and the transmission path has not yet checked this, the value of * @read_count bitwise-added to %EFX_EMPTY_COUNT_VALID; otherwise 0. @@ -292,6 +294,7 @@ struct efx_tx_queue { unsigned int pio_packets; bool xmit_more_available; unsigned int cb_packets; + unsigned int notify_count; /* Statistics to supplement MAC stats */ unsigned long tx_packets; @@ -1669,6 +1672,24 @@ static inline void efx_xmit_hwtstamp_pending(struct sk_buff *skb) skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; } +/* Get the max fill level of the TX queues on this channel */ +static inline unsigned int +efx_channel_tx_fill_level(struct efx_channel *channel) +{ + struct efx_tx_queue *tx_queue; + unsigned int fill_level = 0; + + /* This function is currently only used by EF100, which maybe + * could do something simpler and just compute the fill level + * of the single TXQ that's really in use. + */ + efx_for_each_channel_tx_queue(tx_queue, channel) + fill_level = max(fill_level, + tx_queue->insert_count - tx_queue->read_count); + + return fill_level; +} + /* Get all supported features. * If a feature is not fixed, it is present in hw_features. * If a feature is fixed, it does not present in hw_features, but |