Lines Matching +full:rx +full:- +full:ping +full:- +full:pong
1 /* SPDX-License-Identifier: GPL-2.0-only */
4 * Copyright 2005-2006 Fen Systems Ltd.
5 * Copyright 2005-2013 Solarflare Communications Inc.
63 /* Checksum generation is a per-queue option in hardware, so each
83 /* Size of an RX scatter buffer. Small enough to pack 2 into a 4K page,
86 #define EFX_RX_USR_BUF_SIZE (2048 - 256)
89 * of every buffer. Otherwise, we just need to ensure 4-byte
98 /* Non-standard XDP_PACKET_HEADROOM and tailroom to satisfy XDP_REDIRECT and
111 * struct efx_buffer - A general-purpose DMA buffer
126 * struct efx_tx_buffer - buffer state for a TX descriptor
131 * @option: When @flags & %EFX_TX_BUF_OPTION, an EF10-specific option
164 * struct efx_tx_queue - An Efx TX queue
179 * Is our index within @channel->tx_queue array.
187 * %EFX_TX_CB_ORDER into %EFX_TX_CB_SIZE-sized chunks.
206 * only get the up-to-date value of @write_count if this
208 * avoid cache-line ping-pong between the xmit path and the
237 * Filled in iff @efx->type->option_descriptors; only used for PIO.
241 * only get the up-to-date value of read_count if this
243 * avoid cache-line ping-pong between the xmit path and the
258 * @read_count bitwise-added to %EFX_EMPTY_COUNT_VALID; otherwise 0.
321 #define EFX_TX_CB_SIZE (1 << EFX_TX_CB_ORDER) - NET_IP_ALIGN
324 * struct efx_rx_buffer - An Efx RX data buffer
350 * struct efx_rx_page_state - Page-based rx buffer state
353 * Used to facilitate sharing dma mappings between recycled rx buffers
365 * struct efx_rx_queue - An Efx RX queue
367 * @core_index: Index of network core RX queue. Will be >= 0 iff this
368 * is associated with a real RX queue.
373 * @flush_pending: Set when a RX flush is pending. Has the same lifetime as
375 * @grant_credits: Posted RX descriptors need to be granted to the MAE with
392 * @page_ptr_mask: The number of pages in the RX recycle ring minus 1.
393 * @max_fill: RX descriptor maximum fill level (<= ring size)
394 * @fast_fill_trigger: RX descriptor fill level that will trigger a fast fill
396 * @min_fill: RX descriptor minimum non-zero fill level.
399 * @recycle_count: RX buffer recycle counter.
406 * @xdp_rxq_info: XDP specific RX queue information.
457 * struct efx_channel - An Efx channel
460 * one RX queue, and an associated tasklet for processing the event
468 * @irq: IRQ number (MSI and MSI-X only)
490 * @n_rx_ip_hdr_chksum_err: Count of RX IP header checksum errors
491 * @n_rx_tcp_udp_chksum_err: Count of RX TCP and UDP checksum errors
494 * @n_skbuff_leaks: Count of skbuffs leaked due to RX overrun
495 * @n_rx_nodesc_trunc: Number of RX packets truncated and then dropped due to
497 * @n_rx_merge_events: Number of RX merged completion events
498 * @n_rx_merge_packets: Number of RX packets completed by merged events
499 * @n_rx_xdp_drops: Count of RX packets intentionally dropped due to XDP
500 * @n_rx_xdp_bad_drops: Count of RX packets dropped due to XDP errors
501 * @n_rx_xdp_tx: Count of RX packets retransmitted due to XDP
502 * @n_rx_xdp_redirect: Count of RX packets redirected to a different NIC by XDP
503 * @n_rx_mport_bad: Count of RX packets dropped because their ingress mport was
505 * @old_n_rx_hw_drops: Count of all RX packets dropped for any reason as of last
513 * @rx_list: list of SKBs from current RX, awaiting processing
514 * @rx_queue: RX queue for this channel
589 * struct efx_msi_context - Context for each MSI
604 * struct efx_channel_type - distinguishes traffic and extra channels
615 * @receive_raw: Handle an RX buffer ready to be passed to __efx_rx_packet()
650 STRING_TABLE_LOOKUP((efx)->loopback_mode, efx_loopback_mode)
659 #define EFX_INT_MODE_USE_MSI(x) (((x)->interrupt_mode) <= EFX_INT_MODE_MSI)
714 /* Pseudo bit-mask flow control field */
720 * struct efx_link_state - Current state of the link
722 * @fd: Link is full-duplex
736 return left->up == right->up && left->fd == right->fd &&
737 left->fc == right->fc && left->speed == right->speed;
741 * enum efx_phy_mode - PHY operating mode flags
762 * struct efx_hw_stat_desc - Description of a hardware statistic
765 * @dma_width: Width in bits (0 for non-DMA statistics)
766 * @offset: Offset within stats (ignored for non-DMA statistics)
779 * struct efx_rss_context_priv - driver private data for an RSS context
782 * @rx_hash_udp_4tuple: UDP 4-tuple hashing enabled
790 * struct efx_rss_context - an RSS context
791 * @priv: hardware-specific state
805 #define EFX_ARFS_FILTER_ID_PENDING -1
806 #define EFX_ARFS_FILTER_ID_ERROR -2
807 #define EFX_ARFS_FILTER_ID_REMOVING -3
809 * struct efx_arfs_rule - record of an ARFS filter and its IDs
811 * @spec: details of the filter (used as key for hash table). Use efx->type to
832 * struct efx_async_filter_insertion - Request to asynchronously insert a filter
838 * @flow_id: Identifies the kernel-side flow for which this request was made
862 * struct efx_nic - an Efx NIC
880 * @vi_stride: step between per-VI registers / memory regions
884 * @irq_rx_adaptive: Adaptive IRQ moderation enabled for RX event queues
886 * @irq_rx_mod_step_us: Step size for IRQ moderation for RX event queues
887 * @irq_rx_moderation_us: IRQ moderation time for RX event queues
892 * @rx_queue: RX DMA queues
895 * @extra_channel_types: Types of extra (non-traffic) channels that
906 * @rx_dc_base: Base qword address in SRAM of RX queue descriptor caches
909 * @n_rx_channels: Number of channels used for RX (= number of RX queues)
916 * @rx_ip_align: RX DMA address offset to have IP header aligned in
918 * @rx_dma_len: Current maximum RX DMA length
919 * @rx_buffer_order: Order (log2) of number of pages for each RX buffer
920 * @rx_buffer_truesize: Amortised allocation size of an RX buffer,
922 * @rx_prefix_size: Size of RX prefix before packet data
923 * @rx_packet_hash_offset: Offset of RX flow hash from start of packet data
925 * @rx_packet_len_offset: Offset of RX packet length from start of packet data
928 * (valid only if channel->sync_timestamps_enabled; always negative)
935 * @irq_soft_enabled: Are IRQs soft-enabled? If not, IRQ handler will
940 * @selftest_work: Work item for asynchronous self-test
943 * @mcdi: Management-Controller-to-Driver Interface state
958 * @phy_data: PHY private data (including PHY-specific stats)
966 * @fc_disable: When non-zero flow control is disabled. Typically used to
972 * @loopback_selftest: Offline self-test private state
975 * @filter_state: Architecture-dependent filter table state
977 * @rps_slot_map: bitmap of in-flight entries in @rps_slot
983 * @active_queues: Count of RX and TX queues that haven't been flushed and drained.
986 * @rxq_flush_outstanding: Count of number of RX flushes started but not yet
998 * @xdp_rxq_info_failed: Have any of the rx queues failed to initialise their
1014 * @n_rx_noskb_drops: Count of RX packets dropped due to failure to allocate an skb
1201 * struct efx_probe_data - State after hardware probe
1215 return &probe_data->efx;
1220 return efx->net_dev->reg_state == NETREG_REGISTERED;
1225 return efx->port_num;
1243 * struct efx_nic_type - Efx device type definition
1260 * @fini_dmaq: Flush and finalise DMA queues (RX and TX queues)
1285 * The SDU length may be any value from 0 up to the protocol-
1298 * @irq_disable_non_ev: Disable non-event IRQs on the NIC. Each event
1315 * @rx_probe: Allocate resources for RX queue
1316 * @rx_init: Initialise RX queue on the NIC
1317 * @rx_remove: Free resources for RX queue
1318 * @rx_write: Write RX descriptors and doorbell
1320 * @rx_packet: Receive the queued RX buffer on a channel
1321 * @rx_buf_hash_valid: Determine whether the RX prefix contains a valid hash
1332 * @filter_update_rx_scatter: Update filters after change to rx scatter setting
1336 * @filter_clear_rx: Remove all RX filters whose priority is less than or
1340 * @filter_get_rx_ids: Get list of RX filters at a given priority
1350 * @mtd_sync: Wait for write-back to complete on MTD partition. This
1354 * @ptp_set_ts_sync_events: Enable or disable sync events for inline RX
1361 * @tso_versions: Returns mask of firmware-assisted TSO versions supported.
1365 * @print_additional_fwver: Dump NIC-specific additional FW version info
1367 * @rx_recycle_ring_size: Size of the RX recycle ring
1370 * @rxd_ptr_tbl_base: RX descriptor ring base address
1373 * @evq_rptr_tbl_base: Event queue read-pointer table base address
1375 * @rx_prefix_size: Size of RX prefix before packet data
1376 * @rx_hash_offset: Offset of RX flow hash within prefix
1378 * @rx_buffer_padding: Size of padding at end of RX packet
1576 EFX_WARN_ON_ONCE_PARANOID(index >= efx->n_channels);
1577 return efx->channel[index];
1582 for (_channel = (_efx)->channel[0]; \
1584 _channel = (_channel->channel + 1 < (_efx)->n_channels) ? \
1585 (_efx)->channel[_channel->channel + 1] : NULL)
1589 for (_channel = (_efx)->channel[(_efx)->n_channels - 1]; \
1591 _channel = _channel->channel ? \
1592 (_efx)->channel[_channel->channel - 1] : NULL)
1597 EFX_WARN_ON_ONCE_PARANOID(index >= efx->n_tx_channels);
1598 return efx->channel[efx->tx_channel_offset + index];
1604 EFX_WARN_ON_ONCE_PARANOID(index >= efx->n_xdp_channels);
1605 return efx->channel[efx->xdp_channel_offset + index];
1610 return channel->channel - channel->efx->xdp_channel_offset <
1611 channel->efx->n_xdp_channels;
1616 return channel && channel->channel >= channel->efx->tx_channel_offset;
1622 return channel->efx->xdp_tx_per_channel;
1623 return channel->efx->tx_queues_per_channel;
1630 return channel->tx_queue_by_type[type];
1646 for (_tx_queue = (_channel)->tx_queue; \
1647 _tx_queue < (_channel)->tx_queue + \
1653 return channel->rx_queue.core_index >= 0;
1660 return &channel->rx_queue;
1663 /* Iterate over all RX queues belonging to a channel */
1668 for (_rx_queue = &(_channel)->rx_queue; \
1680 return efx_rx_queue_channel(rx_queue)->channel;
1683 /* Returns a pointer to the specified receive buffer in the RX
1689 return &rx_queue->buffer[index];
1695 if (unlikely(rx_buf == efx_rx_buffer(rx_queue, rx_queue->ptr_mask)))
1702 * EFX_MAX_FRAME_LEN - calculate maximum frame length
1710 * The 10G MAC requires 8-byte alignment on the frame
1713 * Re-clocking by the XGXS on RX can reduce an IPG to 32 bits (half an
1724 return skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP;
1728 skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
1740 tx_queue->insert_count - tx_queue->read_count);
1754 tx_queue->insert_count - tx_queue->old_read_count);
1766 const struct net_device *net_dev = efx->net_dev;
1768 return net_dev->features | net_dev->hw_features;
1775 return tx_queue->insert_count & tx_queue->ptr_mask;
1782 return &tx_queue->buffer[efx_tx_queue_get_insert_index(tx_queue)];
1792 EFX_WARN_ON_ONCE_PARANOID(buffer->len);
1793 EFX_WARN_ON_ONCE_PARANOID(buffer->flags);
1794 EFX_WARN_ON_ONCE_PARANOID(buffer->unmap_len);