diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_txrx.h')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_txrx.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.h b/drivers/net/ethernet/intel/ice/ice_txrx.h index b7015cfad2d7..8fa4450514b4 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx.h +++ b/drivers/net/ethernet/intel/ice/ice_txrx.h @@ -7,8 +7,23 @@ #define ICE_DFLT_IRQ_WORK 256 #define ICE_RXBUF_2048 2048 #define ICE_MAX_CHAINED_RX_BUFS 5 +#define ICE_MAX_BUF_TXD 8 +#define ICE_MIN_TX_LEN 17 + +/* The size limit for a transmit buffer in a descriptor is (16K - 1). + * In order to align with the read requests we will align the value to + * the nearest 4K which represents our maximum read request size. + */ +#define ICE_MAX_READ_REQ_SIZE 4096 +#define ICE_MAX_DATA_PER_TXD (16 * 1024 - 1) +#define ICE_MAX_DATA_PER_TXD_ALIGNED \ + (~(ICE_MAX_READ_REQ_SIZE - 1) & ICE_MAX_DATA_PER_TXD) + +#define ICE_RX_BUF_WRITE 16 /* Must be power of 2 */ #define ICE_MAX_TXQ_PER_TXQG 128 +/* Tx Descriptors needed, worst case */ +#define DESC_NEEDED (MAX_SKB_FRAGS + 4) #define ICE_DESC_UNUSED(R) \ ((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \ (R)->next_to_clean - (R)->next_to_use - 1) @@ -30,6 +45,24 @@ struct ice_rx_buf { unsigned int page_offset; }; +struct ice_q_stats { + u64 pkts; + u64 bytes; +}; + +struct ice_txq_stats { + u64 restart_q; + u64 tx_busy; + u64 tx_linearize; +}; + +struct ice_rxq_stats { + u64 non_eop_descs; + u64 alloc_page_failed; + u64 alloc_buf_failed; + u64 page_reuse_count; +}; + /* this enum matches hardware bits and is meant to be used by DYN_CTLN * registers and QINT registers or more generally anywhere in the manual * mentioning ITR_INDX, ITR_NONE cannot be used as an index 'n' into any @@ -94,6 +127,15 @@ struct ice_ring { u16 next_to_clean; bool ring_active; /* is ring online or not */ + + /* stats structs */ + struct ice_q_stats stats; + struct u64_stats_sync syncp; + union { + struct ice_txq_stats tx_stats; + struct ice_rxq_stats rx_stats; + }; + unsigned int size; /* length of descriptor ring in bytes */ dma_addr_t dma; /* physical address of ring */ struct rcu_head rcu; /* to avoid race on free */ @@ -121,10 +163,13 @@ struct ice_ring_container { for (pos = (head).ring; pos; pos = pos->next) bool ice_alloc_rx_bufs(struct ice_ring *rxr, u16 cleaned_count); +netdev_tx_t ice_start_xmit(struct sk_buff *skb, struct net_device *netdev); void ice_clean_tx_ring(struct ice_ring *tx_ring); void ice_clean_rx_ring(struct ice_ring *rx_ring); int ice_setup_tx_ring(struct ice_ring *tx_ring); int ice_setup_rx_ring(struct ice_ring *rx_ring); void ice_free_tx_ring(struct ice_ring *tx_ring); void ice_free_rx_ring(struct ice_ring *rx_ring); +int ice_napi_poll(struct napi_struct *napi, int budget); + #endif /* _ICE_TXRX_H_ */ |