/* SPDX-License-Identifier: GPL-2.0 */ /* Copyright (c) 2018 Intel Corporation */ #ifndef _IGC_H_ #define _IGC_H_ #include <linux/kobject.h> #include <linux/pci.h> #include <linux/netdevice.h> #include <linux/vmalloc.h> #include <linux/ethtool.h> #include <linux/sctp.h> #include <linux/ptp_clock_kernel.h> #include <linux/timecounter.h> #include <linux/net_tstamp.h> #include <linux/bitfield.h> #include <linux/hrtimer.h> #include <net/xdp.h> #include "igc_hw.h" void igc_ethtool_set_ops(struct net_device *); /* Transmit and receive queues */ #define IGC_MAX_RX_QUEUES … #define IGC_MAX_TX_QUEUES … #define MAX_Q_VECTORS … #define MAX_STD_JUMBO_FRAME_SIZE … #define MAX_ETYPE_FILTER … #define IGC_RETA_SIZE … /* SDP support */ #define IGC_N_EXTTS … #define IGC_N_PEROUT … #define IGC_N_SDP … #define MAX_FLEX_FILTER … #define IGC_MAX_TX_TSTAMP_REGS … enum igc_mac_filter_type { … }; struct igc_tx_queue_stats { … }; struct igc_rx_queue_stats { … }; struct igc_rx_packet_stats { … }; enum igc_tx_buffer_type { … }; /* wrapper around a pointer to a socket buffer, * so a DMA handle can be stored along with the buffer */ struct igc_tx_buffer { … }; struct igc_tx_timestamp_request { … }; struct igc_inline_rx_tstamps { … }; struct igc_ring_container { … }; struct igc_ring { … } ____cacheline_internodealigned_in_smp; /* Board specific private data structure */ struct igc_adapter { … }; void igc_up(struct igc_adapter *adapter); void igc_down(struct igc_adapter *adapter); int igc_open(struct net_device *netdev); int igc_close(struct net_device *netdev); int igc_setup_tx_resources(struct igc_ring *ring); int igc_setup_rx_resources(struct igc_ring *ring); void igc_free_tx_resources(struct igc_ring *ring); void igc_free_rx_resources(struct igc_ring *ring); unsigned int igc_get_max_rss_queues(struct igc_adapter *adapter); void igc_set_flag_queue_pairs(struct igc_adapter *adapter, const u32 max_rss_queues); int igc_reinit_queues(struct igc_adapter *adapter); void igc_write_rss_indir_tbl(struct igc_adapter *adapter); bool igc_has_link(struct igc_adapter *adapter); void igc_reset(struct igc_adapter *adapter); void igc_update_stats(struct igc_adapter *adapter); void igc_disable_rx_ring(struct igc_ring *ring); void igc_enable_rx_ring(struct igc_ring *ring); void igc_disable_tx_ring(struct igc_ring *ring); void igc_enable_tx_ring(struct igc_ring *ring); int igc_xsk_wakeup(struct net_device *dev, u32 queue_id, u32 flags); /* AF_XDP TX metadata operations */ extern const struct xsk_tx_metadata_ops igc_xsk_tx_metadata_ops; /* igc_dump declarations */ void igc_rings_dump(struct igc_adapter *adapter); void igc_regs_dump(struct igc_adapter *adapter); extern char igc_driver_name[]; #define IGC_REGS_LEN … /* flags controlling PTP/1588 function */ #define IGC_PTP_ENABLED … /* Flags definitions */ #define IGC_FLAG_HAS_MSI … #define IGC_FLAG_QUEUE_PAIRS … #define IGC_FLAG_DMAC … #define IGC_FLAG_PTP … #define IGC_FLAG_WOL_SUPPORTED … #define IGC_FLAG_NEED_LINK_UPDATE … #define IGC_FLAG_HAS_MSIX … #define IGC_FLAG_EEE … #define IGC_FLAG_VLAN_PROMISC … #define IGC_FLAG_RX_LEGACY … #define IGC_FLAG_TSN_QBV_ENABLED … #define IGC_FLAG_TSN_QAV_ENABLED … #define IGC_FLAG_TSN_LEGACY_ENABLED … #define IGC_FLAG_TSN_ANY_ENABLED … #define IGC_FLAG_RSS_FIELD_IPV4_UDP … #define IGC_FLAG_RSS_FIELD_IPV6_UDP … #define IGC_MRQC_ENABLE_RSS_MQ … #define IGC_MRQC_RSS_FIELD_IPV4_UDP … #define IGC_MRQC_RSS_FIELD_IPV6_UDP … /* RX-desc Write-Back format RSS Type's */ enum igc_rss_type_num { … }; #define IGC_RSS_TYPE_MAX_TABLE … #define IGC_RSS_TYPE_MASK … /* igc_rss_type - Rx descriptor RSS type field */ static inline u32 igc_rss_type(const union igc_adv_rx_desc *rx_desc) { … } /* Interrupt defines */ #define IGC_START_ITR … #define IGC_4K_ITR … #define IGC_20K_ITR … #define IGC_70K_ITR … #define IGC_DEFAULT_ITR … #define IGC_MAX_ITR_USECS … #define IGC_MIN_ITR_USECS … #define NON_Q_VECTORS … #define MAX_MSIX_ENTRIES … /* TX/RX descriptor defines */ #define IGC_DEFAULT_TXD … #define IGC_DEFAULT_TX_WORK … #define IGC_MIN_TXD … #define IGC_MAX_TXD … #define IGC_DEFAULT_RXD … #define IGC_MIN_RXD … #define IGC_MAX_RXD … /* Supported Rx Buffer Sizes */ #define IGC_RXBUFFER_256 … #define IGC_RXBUFFER_2048 … #define IGC_RXBUFFER_3072 … #define AUTO_ALL_MODES … #define IGC_RX_HDR_LEN … /* Transmit and receive latency (for PTP timestamps) */ #define IGC_I225_TX_LATENCY_10 … #define IGC_I225_TX_LATENCY_100 … #define IGC_I225_TX_LATENCY_1000 … #define IGC_I225_TX_LATENCY_2500 … #define IGC_I225_RX_LATENCY_10 … #define IGC_I225_RX_LATENCY_100 … #define IGC_I225_RX_LATENCY_1000 … #define IGC_I225_RX_LATENCY_2500 … /* RX and TX descriptor control thresholds. * PTHRESH - MAC will consider prefetch if it has fewer than this number of * descriptors available in its onboard memory. * Setting this to 0 disables RX descriptor prefetch. * HTHRESH - MAC will only prefetch if there are at least this many descriptors * available in host memory. * If PTHRESH is 0, this should also be 0. * WTHRESH - RX descriptor writeback threshold - MAC will delay writing back * descriptors until either it has this many to write back, or the * ITR timer expires. */ #define IGC_RX_PTHRESH … #define IGC_RX_HTHRESH … #define IGC_TX_PTHRESH … #define IGC_TX_HTHRESH … #define IGC_RX_WTHRESH … #define IGC_TX_WTHRESH … #define IGC_RX_DMA_ATTR … #define IGC_TS_HDR_LEN … #define IGC_SKB_PAD … #if (PAGE_SIZE < 8192) #define IGC_MAX_FRAME_BUILD_SKB … #else #define IGC_MAX_FRAME_BUILD_SKB … #endif /* How many Rx Buffers do we bundle into one write to the hardware ? */ #define IGC_RX_BUFFER_WRITE … /* VLAN info */ #define IGC_TX_FLAGS_VLAN_MASK … #define IGC_TX_FLAGS_VLAN_SHIFT … /* igc_test_staterr - tests bits within Rx descriptor status and error fields */ static inline __le32 igc_test_staterr(union igc_adv_rx_desc *rx_desc, const u32 stat_err_bits) { … } enum igc_state_t { … }; enum igc_tx_flags { … }; enum igc_boards { … }; /* The largest size we can write to the descriptor is 65535. In order to * maintain a power of two alignment we have to limit ourselves to 32K. */ #define IGC_MAX_TXD_PWR … #define IGC_MAX_DATA_PER_TXD … /* Tx Descriptors needed, worst case */ #define TXD_USE_COUNT(S) … #define DESC_NEEDED … struct igc_rx_buffer { … }; /* context wrapper around xdp_buff to provide access to descriptor metadata */ struct igc_xdp_buff { … }; struct igc_metadata_request { … }; struct igc_q_vector { … }; enum igc_filter_match_flags { … }; struct igc_nfc_filter { … }; struct igc_nfc_rule { … }; /* IGC supports a total of 32 NFC rules: 16 MAC address based, 8 VLAN priority * based, 8 ethertype based and 32 Flex filter based rules. */ #define IGC_MAX_RXNFC_RULES … struct igc_flex_filter { … }; /* igc_desc_unused - calculate if we have unused descriptors */ static inline u16 igc_desc_unused(const struct igc_ring *ring) { … } static inline s32 igc_get_phy_info(struct igc_hw *hw) { … } static inline s32 igc_reset_phy(struct igc_hw *hw) { … } static inline struct netdev_queue *txring_txq(const struct igc_ring *tx_ring) { … } enum igc_ring_flags_t { … }; #define ring_uses_large_buffer(ring) … #define set_ring_uses_large_buffer(ring) … #define clear_ring_uses_large_buffer(ring) … #define ring_uses_build_skb(ring) … static inline unsigned int igc_rx_bufsz(struct igc_ring *ring) { … } static inline unsigned int igc_rx_pg_order(struct igc_ring *ring) { … } static inline s32 igc_read_phy_reg(struct igc_hw *hw, u32 offset, u16 *data) { … } void igc_reinit_locked(struct igc_adapter *); struct igc_nfc_rule *igc_get_nfc_rule(struct igc_adapter *adapter, u32 location); int igc_add_nfc_rule(struct igc_adapter *adapter, struct igc_nfc_rule *rule); void igc_del_nfc_rule(struct igc_adapter *adapter, struct igc_nfc_rule *rule); void igc_ptp_init(struct igc_adapter *adapter); void igc_ptp_reset(struct igc_adapter *adapter); void igc_ptp_suspend(struct igc_adapter *adapter); void igc_ptp_stop(struct igc_adapter *adapter); ktime_t igc_ptp_rx_pktstamp(struct igc_adapter *adapter, __le32 *buf); int igc_ptp_set_ts_config(struct net_device *netdev, struct ifreq *ifr); int igc_ptp_get_ts_config(struct net_device *netdev, struct ifreq *ifr); void igc_ptp_tx_hang(struct igc_adapter *adapter); void igc_ptp_read(struct igc_adapter *adapter, struct timespec64 *ts); void igc_ptp_tx_tstamp_event(struct igc_adapter *adapter); int igc_led_setup(struct igc_adapter *adapter); void igc_led_free(struct igc_adapter *adapter); #define igc_rx_pg_size(_ring) … #define IGC_TXD_DCMD … #define IGC_RX_DESC(R, i) … #define IGC_TX_DESC(R, i) … #define IGC_TX_CTXTDESC(R, i) … #endif /* _IGC_H_ */
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