| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Ben Hutchings | 1867 | 73.59% | 42 | 48.84% |
| Edward Cree | 159 | 6.27% | 9 | 10.47% |
| Daniel Pieczko | 142 | 5.60% | 9 | 10.47% |
| Jon Cooper | 95 | 3.74% | 6 | 6.98% |
| Stuart Hodgson | 80 | 3.15% | 1 | 1.16% |
| Shradha Shah | 70 | 2.76% | 5 | 5.81% |
| Bert Kenward | 58 | 2.29% | 5 | 5.81% |
| Martin Habets | 32 | 1.26% | 4 | 4.65% |
| Alexandre Rames | 18 | 0.71% | 1 | 1.16% |
| Andrew Rybchenko | 8 | 0.32% | 1 | 1.16% |
| Mark Rutland | 3 | 0.12% | 1 | 1.16% |
| Stephen Hemminger | 3 | 0.12% | 1 | 1.16% |
| Thomas Gleixner | 2 | 0.08% | 1 | 1.16% |
| Total | 2537 | 86 |
/* SPDX-License-Identifier: GPL-2.0-only */ /**************************************************************************** * Driver for Solarflare network controllers and boards * Copyright 2005-2006 Fen Systems Ltd. * Copyright 2006-2013 Solarflare Communications Inc. */ #ifndef EFX_NIC_H #define EFX_NIC_H #include <linux/net_tstamp.h> #include <linux/i2c-algo-bit.h> #include "net_driver.h" #include "efx.h" #include "mcdi.h" enum { /* Revisions 0-2 were Falcon A0, A1 and B0 respectively. * They are not supported by this driver but these revision numbers * form part of the ethtool API for register dumping. */ EFX_REV_SIENA_A0 = 3, EFX_REV_HUNT_A0 = 4, }; static inline int efx_nic_rev(struct efx_nic *efx) { return efx->type->revision; } u32 efx_farch_fpga_ver(struct efx_nic *efx); /* Read the current event from the event queue */ static inline efx_qword_t *efx_event(struct efx_channel *channel, unsigned int index) { return ((efx_qword_t *) (channel->eventq.buf.addr)) + (index & channel->eventq_mask); } /* See if an event is present * * We check both the high and low dword of the event for all ones. We * wrote all ones when we cleared the event, and no valid event can * have all ones in either its high or low dwords. This approach is * robust against reordering. * * Note that using a single 64-bit comparison is incorrect; even * though the CPU read will be atomic, the DMA write may not be. */ static inline int efx_event_present(efx_qword_t *event) { return !(EFX_DWORD_IS_ALL_ONES(event->dword[0]) | EFX_DWORD_IS_ALL_ONES(event->dword[1])); } /* Returns a pointer to the specified transmit descriptor in the TX * descriptor queue belonging to the specified channel. */ static inline efx_qword_t * efx_tx_desc(struct efx_tx_queue *tx_queue, unsigned int index) { return ((efx_qword_t *) (tx_queue->txd.buf.addr)) + index; } /* Get partner of a TX queue, seen as part of the same net core queue */ static struct efx_tx_queue *efx_tx_queue_partner(struct efx_tx_queue *tx_queue) { if (tx_queue->queue & EFX_TXQ_TYPE_OFFLOAD) return tx_queue - EFX_TXQ_TYPE_OFFLOAD; else return tx_queue + EFX_TXQ_TYPE_OFFLOAD; } /* Report whether this TX queue would be empty for the given write_count. * May return false negative. */ static inline bool __efx_nic_tx_is_empty(struct efx_tx_queue *tx_queue, unsigned int write_count) { unsigned int empty_read_count = READ_ONCE(tx_queue->empty_read_count); if (empty_read_count == 0) return false; return ((empty_read_count ^ write_count) & ~EFX_EMPTY_COUNT_VALID) == 0; } /* Report whether the NIC considers this TX queue empty, using * packet_write_count (the write count recorded for the last completable * doorbell push). May return false negative. EF10 only, which is OK * because only EF10 supports PIO. */ static inline bool efx_nic_tx_is_empty(struct efx_tx_queue *tx_queue) { EFX_WARN_ON_ONCE_PARANOID(!tx_queue->efx->type->option_descriptors); return __efx_nic_tx_is_empty(tx_queue, tx_queue->packet_write_count); } /* Decide whether we can use TX PIO, ie. write packet data directly into * a buffer on the device. This can reduce latency at the expense of * throughput, so we only do this if both hardware and software TX rings * are empty. This also ensures that only one packet at a time can be * using the PIO buffer. */ static inline bool efx_nic_may_tx_pio(struct efx_tx_queue *tx_queue) { struct efx_tx_queue *partner = efx_tx_queue_partner(tx_queue); return tx_queue->piobuf && efx_nic_tx_is_empty(tx_queue) && efx_nic_tx_is_empty(partner); } /* Decide whether to push a TX descriptor to the NIC vs merely writing * the doorbell. This can reduce latency when we are adding a single * descriptor to an empty queue, but is otherwise pointless. Further, * Falcon and Siena have hardware bugs (SF bug 33851) that may be * triggered if we don't check this. * We use the write_count used for the last doorbell push, to get the * NIC's view of the tx queue. */ static inline bool efx_nic_may_push_tx_desc(struct efx_tx_queue *tx_queue, unsigned int write_count) { bool was_empty = __efx_nic_tx_is_empty(tx_queue, write_count); tx_queue->empty_read_count = 0; return was_empty && tx_queue->write_count - write_count == 1; } /* Returns a pointer to the specified descriptor in the RX descriptor queue */ static inline efx_qword_t * efx_rx_desc(struct efx_rx_queue *rx_queue, unsigned int index) { return ((efx_qword_t *) (rx_queue->rxd.buf.addr)) + index; } enum { PHY_TYPE_NONE = 0, PHY_TYPE_TXC43128 = 1, PHY_TYPE_88E1111 = 2, PHY_TYPE_SFX7101 = 3, PHY_TYPE_QT2022C2 = 4, PHY_TYPE_PM8358 = 6, PHY_TYPE_SFT9001A = 8, PHY_TYPE_QT2025C = 9, PHY_TYPE_SFT9001B = 10, }; /* Alignment of PCIe DMA boundaries (4KB) */ #define EFX_PAGE_SIZE 4096 /* Size and alignment of buffer table entries (same) */ #define EFX_BUF_SIZE EFX_PAGE_SIZE /* NIC-generic software stats */ enum { GENERIC_STAT_rx_noskb_drops, GENERIC_STAT_rx_nodesc_trunc, GENERIC_STAT_COUNT }; enum { SIENA_STAT_tx_bytes = GENERIC_STAT_COUNT, SIENA_STAT_tx_good_bytes, SIENA_STAT_tx_bad_bytes, SIENA_STAT_tx_packets, SIENA_STAT_tx_bad, SIENA_STAT_tx_pause, SIENA_STAT_tx_control, SIENA_STAT_tx_unicast, SIENA_STAT_tx_multicast, SIENA_STAT_tx_broadcast, SIENA_STAT_tx_lt64, SIENA_STAT_tx_64, SIENA_STAT_tx_65_to_127, SIENA_STAT_tx_128_to_255, SIENA_STAT_tx_256_to_511, SIENA_STAT_tx_512_to_1023, SIENA_STAT_tx_1024_to_15xx, SIENA_STAT_tx_15xx_to_jumbo, SIENA_STAT_tx_gtjumbo, SIENA_STAT_tx_collision, SIENA_STAT_tx_single_collision, SIENA_STAT_tx_multiple_collision, SIENA_STAT_tx_excessive_collision, SIENA_STAT_tx_deferred, SIENA_STAT_tx_late_collision, SIENA_STAT_tx_excessive_deferred, SIENA_STAT_tx_non_tcpudp, SIENA_STAT_tx_mac_src_error, SIENA_STAT_tx_ip_src_error, SIENA_STAT_rx_bytes, SIENA_STAT_rx_good_bytes, SIENA_STAT_rx_bad_bytes, SIENA_STAT_rx_packets, SIENA_STAT_rx_good, SIENA_STAT_rx_bad, SIENA_STAT_rx_pause, SIENA_STAT_rx_control, SIENA_STAT_rx_unicast, SIENA_STAT_rx_multicast, SIENA_STAT_rx_broadcast, SIENA_STAT_rx_lt64, SIENA_STAT_rx_64, SIENA_STAT_rx_65_to_127, SIENA_STAT_rx_128_to_255, SIENA_STAT_rx_256_to_511, SIENA_STAT_rx_512_to_1023, SIENA_STAT_rx_1024_to_15xx, SIENA_STAT_rx_15xx_to_jumbo, SIENA_STAT_rx_gtjumbo, SIENA_STAT_rx_bad_gtjumbo, SIENA_STAT_rx_overflow, SIENA_STAT_rx_false_carrier, SIENA_STAT_rx_symbol_error, SIENA_STAT_rx_align_error, SIENA_STAT_rx_length_error, SIENA_STAT_rx_internal_error, SIENA_STAT_rx_nodesc_drop_cnt, SIENA_STAT_COUNT }; /** * struct siena_nic_data - Siena NIC state * @efx: Pointer back to main interface structure * @wol_filter_id: Wake-on-LAN packet filter id * @stats: Hardware statistics * @vf: Array of &struct siena_vf objects * @vf_buftbl_base: The zeroth buffer table index used to back VF queues. * @vfdi_status: Common VFDI status page to be dmad to VF address space. * @local_addr_list: List of local addresses. Protected by %local_lock. * @local_page_list: List of DMA addressable pages used to broadcast * %local_addr_list. Protected by %local_lock. * @local_lock: Mutex protecting %local_addr_list and %local_page_list. * @peer_work: Work item to broadcast peer addresses to VMs. */ struct siena_nic_data { struct efx_nic *efx; int wol_filter_id; u64 stats[SIENA_STAT_COUNT]; #ifdef CONFIG_SFC_SRIOV struct siena_vf *vf; struct efx_channel *vfdi_channel; unsigned vf_buftbl_base; struct efx_buffer vfdi_status; struct list_head local_addr_list; struct list_head local_page_list; struct mutex local_lock; struct work_struct peer_work; #endif }; enum { EF10_STAT_port_tx_bytes = GENERIC_STAT_COUNT, EF10_STAT_port_tx_packets, EF10_STAT_port_tx_pause, EF10_STAT_port_tx_control, EF10_STAT_port_tx_unicast, EF10_STAT_port_tx_multicast, EF10_STAT_port_tx_broadcast, EF10_STAT_port_tx_lt64, EF10_STAT_port_tx_64, EF10_STAT_port_tx_65_to_127, EF10_STAT_port_tx_128_to_255, EF10_STAT_port_tx_256_to_511, EF10_STAT_port_tx_512_to_1023, EF10_STAT_port_tx_1024_to_15xx, EF10_STAT_port_tx_15xx_to_jumbo, EF10_STAT_port_rx_bytes, EF10_STAT_port_rx_bytes_minus_good_bytes, EF10_STAT_port_rx_good_bytes, EF10_STAT_port_rx_bad_bytes, EF10_STAT_port_rx_packets, EF10_STAT_port_rx_good, EF10_STAT_port_rx_bad, EF10_STAT_port_rx_pause, EF10_STAT_port_rx_control, EF10_STAT_port_rx_unicast, EF10_STAT_port_rx_multicast, EF10_STAT_port_rx_broadcast, EF10_STAT_port_rx_lt64, EF10_STAT_port_rx_64, EF10_STAT_port_rx_65_to_127, EF10_STAT_port_rx_128_to_255, EF10_STAT_port_rx_256_to_511, EF10_STAT_port_rx_512_to_1023, EF10_STAT_port_rx_1024_to_15xx, EF10_STAT_port_rx_15xx_to_jumbo, EF10_STAT_port_rx_gtjumbo, EF10_STAT_port_rx_bad_gtjumbo, EF10_STAT_port_rx_overflow, EF10_STAT_port_rx_align_error, EF10_STAT_port_rx_length_error, EF10_STAT_port_rx_nodesc_drops, EF10_STAT_port_rx_pm_trunc_bb_overflow, EF10_STAT_port_rx_pm_discard_bb_overflow, EF10_STAT_port_rx_pm_trunc_vfifo_full, EF10_STAT_port_rx_pm_discard_vfifo_full, EF10_STAT_port_rx_pm_trunc_qbb, EF10_STAT_port_rx_pm_discard_qbb, EF10_STAT_port_rx_pm_discard_mapping, EF10_STAT_port_rx_dp_q_disabled_packets, EF10_STAT_port_rx_dp_di_dropped_packets, EF10_STAT_port_rx_dp_streaming_packets, EF10_STAT_port_rx_dp_hlb_fetch, EF10_STAT_port_rx_dp_hlb_wait, EF10_STAT_rx_unicast, EF10_STAT_rx_unicast_bytes, EF10_STAT_rx_multicast, EF10_STAT_rx_multicast_bytes, EF10_STAT_rx_broadcast, EF10_STAT_rx_broadcast_bytes, EF10_STAT_rx_bad, EF10_STAT_rx_bad_bytes, EF10_STAT_rx_overflow, EF10_STAT_tx_unicast, EF10_STAT_tx_unicast_bytes, EF10_STAT_tx_multicast, EF10_STAT_tx_multicast_bytes, EF10_STAT_tx_broadcast, EF10_STAT_tx_broadcast_bytes, EF10_STAT_tx_bad, EF10_STAT_tx_bad_bytes, EF10_STAT_tx_overflow, EF10_STAT_V1_COUNT, EF10_STAT_fec_uncorrected_errors = EF10_STAT_V1_COUNT, EF10_STAT_fec_corrected_errors, EF10_STAT_fec_corrected_symbols_lane0, EF10_STAT_fec_corrected_symbols_lane1, EF10_STAT_fec_corrected_symbols_lane2, EF10_STAT_fec_corrected_symbols_lane3, EF10_STAT_ctpio_vi_busy_fallback, EF10_STAT_ctpio_long_write_success, EF10_STAT_ctpio_missing_dbell_fail, EF10_STAT_ctpio_overflow_fail, EF10_STAT_ctpio_underflow_fail, EF10_STAT_ctpio_timeout_fail, EF10_STAT_ctpio_noncontig_wr_fail, EF10_STAT_ctpio_frm_clobber_fail, EF10_STAT_ctpio_invalid_wr_fail, EF10_STAT_ctpio_vi_clobber_fallback, EF10_STAT_ctpio_unqualified_fallback, EF10_STAT_ctpio_runt_fallback, EF10_STAT_ctpio_success, EF10_STAT_ctpio_fallback, EF10_STAT_ctpio_poison, EF10_STAT_ctpio_erase, EF10_STAT_COUNT }; /* Maximum number of TX PIO buffers we may allocate to a function. * This matches the total number of buffers on each SFC9100-family * controller. */ #define EF10_TX_PIOBUF_COUNT 16 /** * struct efx_ef10_nic_data - EF10 architecture NIC state * @mcdi_buf: DMA buffer for MCDI * @warm_boot_count: Last seen MC warm boot count * @vi_base: Absolute index of first VI in this function * @n_allocated_vis: Number of VIs allocated to this function * @must_realloc_vis: Flag: VIs have yet to be reallocated after MC reboot * @must_restore_rss_contexts: Flag: RSS contexts have yet to be restored after * MC reboot * @must_restore_filters: Flag: filters have yet to be restored after MC reboot * @n_piobufs: Number of PIO buffers allocated to this function * @wc_membase: Base address of write-combining mapping of the memory BAR * @pio_write_base: Base address for writing PIO buffers * @pio_write_vi_base: Relative VI number for @pio_write_base * @piobuf_handle: Handle of each PIO buffer allocated * @piobuf_size: size of a single PIO buffer * @must_restore_piobufs: Flag: PIO buffers have yet to be restored after MC * reboot * @rx_rss_context_exclusive: Whether our RSS context is exclusive or shared * @stats: Hardware statistics * @workaround_35388: Flag: firmware supports workaround for bug 35388 * @workaround_26807: Flag: firmware supports workaround for bug 26807 * @workaround_61265: Flag: firmware supports workaround for bug 61265 * @must_check_datapath_caps: Flag: @datapath_caps needs to be revalidated * after MC reboot * @datapath_caps: Capabilities of datapath firmware (FLAGS1 field of * %MC_CMD_GET_CAPABILITIES response) * @datapath_caps2: Further Capabilities of datapath firmware (FLAGS2 field of * %MC_CMD_GET_CAPABILITIES response) * @rx_dpcpu_fw_id: Firmware ID of the RxDPCPU * @tx_dpcpu_fw_id: Firmware ID of the TxDPCPU * @vport_id: The function's vport ID, only relevant for PFs * @must_probe_vswitching: Flag: vswitching has yet to be setup after MC reboot * @pf_index: The number for this PF, or the parent PF if this is a VF #ifdef CONFIG_SFC_SRIOV * @vf: Pointer to VF data structure #endif * @vport_mac: The MAC address on the vport, only for PFs; VFs will be zero * @vlan_list: List of VLANs added over the interface. Serialised by vlan_lock. * @vlan_lock: Lock to serialize access to vlan_list. * @udp_tunnels: UDP tunnel port numbers and types. * @udp_tunnels_dirty: flag indicating a reboot occurred while pushing * @udp_tunnels to hardware and thus the push must be re-done. * @udp_tunnels_lock: Serialises writes to @udp_tunnels and @udp_tunnels_dirty. */ struct efx_ef10_nic_data { struct efx_buffer mcdi_buf; u16 warm_boot_count; unsigned int vi_base; unsigned int n_allocated_vis; bool must_realloc_vis; bool must_restore_rss_contexts; bool must_restore_filters; unsigned int n_piobufs; void __iomem *wc_membase, *pio_write_base; unsigned int pio_write_vi_base; unsigned int piobuf_handle[EF10_TX_PIOBUF_COUNT]; u16 piobuf_size; bool must_restore_piobufs; bool rx_rss_context_exclusive; u64 stats[EF10_STAT_COUNT]; bool workaround_35388; bool workaround_26807; bool workaround_61265; bool must_check_datapath_caps; u32 datapath_caps; u32 datapath_caps2; unsigned int rx_dpcpu_fw_id; unsigned int tx_dpcpu_fw_id; unsigned int vport_id; bool must_probe_vswitching; unsigned int pf_index; u8 port_id[ETH_ALEN]; #ifdef CONFIG_SFC_SRIOV unsigned int vf_index; struct ef10_vf *vf; #endif u8 vport_mac[ETH_ALEN]; struct list_head vlan_list; struct mutex vlan_lock; struct efx_udp_tunnel udp_tunnels[16]; bool udp_tunnels_dirty; struct mutex udp_tunnels_lock; u64 licensed_features; }; int efx_init_sriov(void); void efx_fini_sriov(void); struct ethtool_ts_info; int efx_ptp_probe(struct efx_nic *efx, struct efx_channel *channel); void efx_ptp_defer_probe_with_channel(struct efx_nic *efx); struct efx_channel *efx_ptp_channel(struct efx_nic *efx); void efx_ptp_remove(struct efx_nic *efx); int efx_ptp_set_ts_config(struct efx_nic *efx, struct ifreq *ifr); int efx_ptp_get_ts_config(struct efx_nic *efx, struct ifreq *ifr); void efx_ptp_get_ts_info(struct efx_nic *efx, struct ethtool_ts_info *ts_info); bool efx_ptp_is_ptp_tx(struct efx_nic *efx, struct sk_buff *skb); int efx_ptp_get_mode(struct efx_nic *efx); int efx_ptp_change_mode(struct efx_nic *efx, bool enable_wanted, unsigned int new_mode); int efx_ptp_tx(struct efx_nic *efx, struct sk_buff *skb); void efx_ptp_event(struct efx_nic *efx, efx_qword_t *ev); size_t efx_ptp_describe_stats(struct efx_nic *efx, u8 *strings); size_t efx_ptp_update_stats(struct efx_nic *efx, u64 *stats); void efx_time_sync_event(struct efx_channel *channel, efx_qword_t *ev); void __efx_rx_skb_attach_timestamp(struct efx_channel *channel, struct sk_buff *skb); static inline void efx_rx_skb_attach_timestamp(struct efx_channel *channel, struct sk_buff *skb) { if (channel->sync_events_state == SYNC_EVENTS_VALID) __efx_rx_skb_attach_timestamp(channel, skb); } void efx_ptp_start_datapath(struct efx_nic *efx); void efx_ptp_stop_datapath(struct efx_nic *efx); bool efx_ptp_use_mac_tx_timestamps(struct efx_nic *efx); ktime_t efx_ptp_nic_to_kernel_time(struct efx_tx_queue *tx_queue); extern const struct efx_nic_type falcon_a1_nic_type; extern const struct efx_nic_type falcon_b0_nic_type; extern const struct efx_nic_type siena_a0_nic_type; extern const struct efx_nic_type efx_hunt_a0_nic_type; extern const struct efx_nic_type efx_hunt_a0_vf_nic_type; /************************************************************************** * * Externs * ************************************************************************** */ int falcon_probe_board(struct efx_nic *efx, u16 revision_info); /* TX data path */ static inline int efx_nic_probe_tx(struct efx_tx_queue *tx_queue) { return tx_queue->efx->type->tx_probe(tx_queue); } static inline void efx_nic_init_tx(struct efx_tx_queue *tx_queue) { tx_queue->efx->type->tx_init(tx_queue); } static inline void efx_nic_remove_tx(struct efx_tx_queue *tx_queue) { tx_queue->efx->type->tx_remove(tx_queue); } static inline void efx_nic_push_buffers(struct efx_tx_queue *tx_queue) { tx_queue->efx->type->tx_write(tx_queue); } /* RX data path */ static inline int efx_nic_probe_rx(struct efx_rx_queue *rx_queue) { return rx_queue->efx->type->rx_probe(rx_queue); } static inline void efx_nic_init_rx(struct efx_rx_queue *rx_queue) { rx_queue->efx->type->rx_init(rx_queue); } static inline void efx_nic_remove_rx(struct efx_rx_queue *rx_queue) { rx_queue->efx->type->rx_remove(rx_queue); } static inline void efx_nic_notify_rx_desc(struct efx_rx_queue *rx_queue) { rx_queue->efx->type->rx_write(rx_queue); } static inline void efx_nic_generate_fill_event(struct efx_rx_queue *rx_queue) { rx_queue->efx->type->rx_defer_refill(rx_queue); } /* Event data path */ static inline int efx_nic_probe_eventq(struct efx_channel *channel) { return channel->efx->type->ev_probe(channel); } static inline int efx_nic_init_eventq(struct efx_channel *channel) { return channel->efx->type->ev_init(channel); } static inline void efx_nic_fini_eventq(struct efx_channel *channel) { channel->efx->type->ev_fini(channel); } static inline void efx_nic_remove_eventq(struct efx_channel *channel) { channel->efx->type->ev_remove(channel); } static inline int efx_nic_process_eventq(struct efx_channel *channel, int quota) { return channel->efx->type->ev_process(channel, quota); } static inline void efx_nic_eventq_read_ack(struct efx_channel *channel) { channel->efx->type->ev_read_ack(channel); } void efx_nic_event_test_start(struct efx_channel *channel); /* Falcon/Siena queue operations */ int efx_farch_tx_probe(struct efx_tx_queue *tx_queue); void efx_farch_tx_init(struct efx_tx_queue *tx_queue); void efx_farch_tx_fini(struct efx_tx_queue *tx_queue); void efx_farch_tx_remove(struct efx_tx_queue *tx_queue); void efx_farch_tx_write(struct efx_tx_queue *tx_queue); unsigned int efx_farch_tx_limit_len(struct efx_tx_queue *tx_queue, dma_addr_t dma_addr, unsigned int len); int efx_farch_rx_probe(struct efx_rx_queue *rx_queue); void efx_farch_rx_init(struct efx_rx_queue *rx_queue); void efx_farch_rx_fini(struct efx_rx_queue *rx_queue); void efx_farch_rx_remove(struct efx_rx_queue *rx_queue); void efx_farch_rx_write(struct efx_rx_queue *rx_queue); void efx_farch_rx_defer_refill(struct efx_rx_queue *rx_queue); int efx_farch_ev_probe(struct efx_channel *channel); int efx_farch_ev_init(struct efx_channel *channel); void efx_farch_ev_fini(struct efx_channel *channel); void efx_farch_ev_remove(struct efx_channel *channel); int efx_farch_ev_process(struct efx_channel *channel, int quota); void efx_farch_ev_read_ack(struct efx_channel *channel); void efx_farch_ev_test_generate(struct efx_channel *channel); /* Falcon/Siena filter operations */ int efx_farch_filter_table_probe(struct efx_nic *efx); void efx_farch_filter_table_restore(struct efx_nic *efx); void efx_farch_filter_table_remove(struct efx_nic *efx); void efx_farch_filter_update_rx_scatter(struct efx_nic *efx); s32 efx_farch_filter_insert(struct efx_nic *efx, struct efx_filter_spec *spec, bool replace); int efx_farch_filter_remove_safe(struct efx_nic *efx, enum efx_filter_priority priority, u32 filter_id); int efx_farch_filter_get_safe(struct efx_nic *efx, enum efx_filter_priority priority, u32 filter_id, struct efx_filter_spec *); int efx_farch_filter_clear_rx(struct efx_nic *efx, enum efx_filter_priority priority); u32 efx_farch_filter_count_rx_used(struct efx_nic *efx, enum efx_filter_priority priority); u32 efx_farch_filter_get_rx_id_limit(struct efx_nic *efx); s32 efx_farch_filter_get_rx_ids(struct efx_nic *efx, enum efx_filter_priority priority, u32 *buf, u32 size); #ifdef CONFIG_RFS_ACCEL bool efx_farch_filter_rfs_expire_one(struct efx_nic *efx, u32 flow_id, unsigned int index); #endif void efx_farch_filter_sync_rx_mode(struct efx_nic *efx); bool efx_nic_event_present(struct efx_channel *channel); /* Some statistics are computed as A - B where A and B each increase * linearly with some hardware counter(s) and the counters are read * asynchronously. If the counters contributing to B are always read * after those contributing to A, the computed value may be lower than * the true value by some variable amount, and may decrease between * subsequent computations. * * We should never allow statistics to decrease or to exceed the true * value. Since the computed value will never be greater than the * true value, we can achieve this by only storing the computed value * when it increases. */ static inline void efx_update_diff_stat(u64 *stat, u64 diff) { if ((s64)(diff - *stat) > 0) *stat = diff; } /* Interrupts */ int efx_nic_init_interrupt(struct efx_nic *efx); int efx_nic_irq_test_start(struct efx_nic *efx); void efx_nic_fini_interrupt(struct efx_nic *efx); /* Falcon/Siena interrupts */ void efx_farch_irq_enable_master(struct efx_nic *efx); int efx_farch_irq_test_generate(struct efx_nic *efx); void efx_farch_irq_disable_master(struct efx_nic *efx); irqreturn_t efx_farch_msi_interrupt(int irq, void *dev_id); irqreturn_t efx_farch_legacy_interrupt(int irq, void *dev_id); irqreturn_t efx_farch_fatal_interrupt(struct efx_nic *efx); static inline int efx_nic_event_test_irq_cpu(struct efx_channel *channel) { return READ_ONCE(channel->event_test_cpu); } static inline int efx_nic_irq_test_irq_cpu(struct efx_nic *efx) { return READ_ONCE(efx->last_irq_cpu); } /* Global Resources */ int efx_nic_flush_queues(struct efx_nic *efx); void siena_prepare_flush(struct efx_nic *efx); int efx_farch_fini_dmaq(struct efx_nic *efx); void efx_farch_finish_flr(struct efx_nic *efx); void siena_finish_flush(struct efx_nic *efx); void falcon_start_nic_stats(struct efx_nic *efx); void falcon_stop_nic_stats(struct efx_nic *efx); int falcon_reset_xaui(struct efx_nic *efx); void efx_farch_dimension_resources(struct efx_nic *efx, unsigned sram_lim_qw); void efx_farch_init_common(struct efx_nic *efx); void efx_ef10_handle_drain_event(struct efx_nic *efx); void efx_farch_rx_push_indir_table(struct efx_nic *efx); void efx_farch_rx_pull_indir_table(struct efx_nic *efx); int efx_nic_alloc_buffer(struct efx_nic *efx, struct efx_buffer *buffer, unsigned int len, gfp_t gfp_flags); void efx_nic_free_buffer(struct efx_nic *efx, struct efx_buffer *buffer); /* Tests */ struct efx_farch_register_test { unsigned address; efx_oword_t mask; }; int efx_farch_test_registers(struct efx_nic *efx, const struct efx_farch_register_test *regs, size_t n_regs); size_t efx_nic_get_regs_len(struct efx_nic *efx); void efx_nic_get_regs(struct efx_nic *efx, void *buf); size_t efx_nic_describe_stats(const struct efx_hw_stat_desc *desc, size_t count, const unsigned long *mask, u8 *names); void efx_nic_update_stats(const struct efx_hw_stat_desc *desc, size_t count, const unsigned long *mask, u64 *stats, const void *dma_buf, bool accumulate); void efx_nic_fix_nodesc_drop_stat(struct efx_nic *efx, u64 *stat); #define EFX_MAX_FLUSH_TIME 5000 void efx_farch_generate_event(struct efx_nic *efx, unsigned int evq, efx_qword_t *event); #endif /* EFX_NIC_H */
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