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< / div > < div class = "- topic/body concept/conbody body conbody" > < p class = "- topic/shortdesc shortdesc" > < / p > < div class = "- topic/p p" data-ofbid = "d169255e23__20250121171620" >
< ul class = "- topic/ul ul" id = "mac_key_procedure__ul_uq1_2cs_21c" data-ofbid = "mac_key_procedure__ul_uq1_2cs_21c" > < li class = "- topic/li li" data-ofbid = "d169255e26__20250121171620" > 初始化流程< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "mac_key_procedure__codeblock_mqg_2cs_21c" data-ofbid = "mac_key_procedure__codeblock_mqg_2cs_21c" > |--> aicmac_platform_get_resources
|--> kzalloc aicma_resources
|--> platform_get_irq_byname
|--> devm_platform_ioremap_resource
|--> aicmac_platform_get_config
|--> aicmac_platform_init_data
|--> aicmac_phy_init_data
|--> aicmac_mac_init_data
|--> aicmac_mdio_init_data
|--> aicmac_mda_init_data
|--> aicmac_napi_init_data
|--> aicmac_< span class = "hl-number" > 1588< / span > _init_data
|--> aicmac_platform_get_mac_addr
|--> aicmac_platform_init_ioirq
|--> handle clk: mac clk, pclk
|--> aicmac_< span class = "hl-number" > 1588< / span > _init_clk
|--> devm_reset_control_get
|--> aicmac_core_init
|--> devm_alloc_etherdev_mqs
|--> netdev_priv(ndev)
|--> create_singlethread_workqueue
|--> aicmac_service_task
|--> reset_control_assert
|--> aicmac_mac_init
|--> aicmac_mac_ip_init
|--> aicmac_mac_reg_core_init
|--> aicmac_dma_init
|--> dma_set_mask_and_coherent
|--> aicmac_napi_init
|--> netif_set_real_num_rx_queues
|--> netif_set_real_num_tx_queues
|--> aicmac_core_setup_napiop
|--> netif_napi_add(rx)
|--> netif_napi_add(tx)
|--> mutex_init
|--> aicmac_mdio_register
|--> mdiobus_alloc
|--> of_mdiobus_register
|--> mdiobus_get_phy
|--> aicmac_phy_init
|--> phylink_create
|--> aicmac_< span class = "hl-number" > 1588< / span > _init
|--> ptp_clock_register
|--> register_netdev< / pre > < / li > < li class = "- topic/li li" data-ofbid = "d169255e30__20250121171620" > 设备打开流程< div class = "- topic/p p" data-ofbid = "d169255e32__20250121171620" > 如果在终端执行 “ifconfig eth0 up”， ，
code-block:< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "mac_key_procedure__codeblock_opl_fcs_21c" data-ofbid = "mac_key_procedure__codeblock_opl_fcs_21c" > aicmac_open
|--> aicmac_mac_reg_core_init
|--> aicmac_mac_reg_init_basic_config(mac, dev);
|--> aicmac_mac_reg_init_tx_func(mac, dev);
|--> aicmac_mac_reg_init_rx_func(mac, dev);
|--> aicmac_phy_connect
|--> phylink_of_phy_connect
|--> mdiobus_get_phy
|--> phylink_connect_phy
|--> aicmac_dma_ring_set_< span class = "hl-number" > 16< / span > kib_bfsize
|--> aicmac_dma_ring_set_bfsize
|--> aicmac_dma_alloc_dma_desc_resources
|--> aicmac_dma_alloc_dma_rx_desc_resources
|--> aicmac_dma_alloc_dma_rx_desc_resources
|--> aicmac_dma_init_desc_rings
|--> aicmac_dma_init_rx_desc_rings
|--> aicmac_dma_init_tx_desc_rings
|--> aicmac_dma_clear_rx_descriptors
|--> aicmac_dma_clear_tx_descriptors
|--> aicmac_hw_setup
|--> aicmac_dma_init_engine
|--> aicmac_mac_reg_reset
|--> aicmac_mac_reg_set_umac_addr
|--> aicmac_mac_reg_core_init
|--> aicmac_mac_reg_rx_ipc_enable
|--> aicmac_mac_reg_enable_mac
|--> aicmac_dma_operation_mode
|--> aicmac_dma_reg_operation_mode_rx
|--> aicmac_dma_reg_operation_mode_tx
|--> aicmac_dma_start_all_dma
|--> aicmac_dma_reg_start_rx
|--> aicmac_dma_reg_start_tx
|--> aicmac_init_coalesce
|--> aicmac_tx_timer
|--> phylink_start
|--> request_irq-> aicmac_interrupt
|--> aicmac_enable_all_queues
|--> netif_tx_start_all_queues< / pre > < / div > < div class = "- topic/p p" data-ofbid = "d169255e36__20250121171620" > < br / > < div class = "imagecenter" > < img class = "- topic/image image imagecenter" id = "mac_key_procedure__image_bcn_gbs_21c" src = "../../../images/mac/mac-open.jpg" alt = "mac-open" / > < / div > < br / > < / div > < / li > < li class = "- topic/li li" data-ofbid = "d169255e40__20250121171620" > 数据发送流程< div class = "- topic/p p" data-ofbid = "d169255e42__20250121171620" > 执行任何的发送操作(如 ping 命令)，
code-block:< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "mac_key_procedure__codeblock_o55_gcs_21c" data-ofbid = "mac_key_procedure__codeblock_o55_gcs_21c" > aicmac_xmit
|--> aicmac_tx_avail
|--> aicmac_vlan_insert
|--> aicmac_dma_ring_is_jumbo_frm
|--> aicmac_dma_ring_jumbo_frm
|--> aicmac_dma_desc_set_addr
|--> aicmac_dma_desc_prepare_tx_desc
|--> skb_tx_timestamp
|--> netdev_tx_sent_queue
|--> aicmac_dma_reg_enable_transmission
|--> aicmac_tx_timer_arm< / pre > < / div > < div class = "- topic/p p" data-ofbid = "d169255e46__20250121171620" > < br / > < div class = "imagecenter" > < img class = "- topic/image image imagecenter" id = "mac_key_procedure__image_ecn_gbs_21c" src = "../../../images/mac/mac-xmit.jpg" alt = "mac-xmit" / > < / div > < br / > < / div > < / li > < li class = "- topic/li li" data-ofbid = "d169255e50__20250121171620" > 数据接收流程< div class = "- topic/p p" data-ofbid = "d169255e52__20250121171620" > 有任何数据到达，
被执行< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "mac_key_procedure__codeblock_ihl_3cs_21c" data-ofbid = "mac_key_procedure__codeblock_ihl_3cs_21c" > aicmac_interrupt
|--> aicmac_napi_check
|--> invoke aicmac_napi_poll_rx
|--> aicmac_rx
|--> netif_msg_rx_status
|--> aicmac_dma_desc_get_rx_status
|--> dma_sync_single_for_cpu
|--> skb_copy_to_linear_data
|--> skb_put
|--> page_pool_recycle_direct
|--> skb_add_rx_frag
|--> page_pool_release_page
|--> aicmac_< span class = "hl-number" > 1588< / span > _get_rx_hwtstamp
|--> skb_set_hash
|--> skb_record_rx_queue
|--> napi_gro_receive
|--> aicmac_rx_refill
|--> aicmac_dma_reg_enable_irq
|--> aicmac_dma_set_operation_mode< / pre > < / div > < div class = "- topic/p p" data-ofbid = "d169255e56__20250121171620" > < br / > < div class = "imagecenter" > < img class = "- topic/image image imagecenter" id = "mac_key_procedure__image_hcn_gbs_21c" src = "../../../images/mac/mac-receive.jpg" alt = "mac-receive" / > < / div > < br / > < / div > < / li > < li class = "- topic/li li" data-ofbid = "d169255e60__20250121171620" > DMA 初始化流程< div class = "- topic/p p" data-ofbid = "d169255e62__20250121171620" > DMA 模块将在设备 Open 的时候初始化 ..
code-block:< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "mac_key_procedure__codeblock_s4f_jcs_21c" data-ofbid = "mac_key_procedure__codeblock_s4f_jcs_21c" > aicmac_dma_init_desc_rings
|--> aicmac_dma_init_rx_desc_rings
|--> aicmac_dma_clear_rx_descriptors
|--> aicmac_dma_desc_init_rx_desc
|--> aicmac_dma_init_rx_buffers
|--> aicmac_dma_chain_init(RX,TX)
|--> aicmac_dmac_init_tx_desc_rings
|--> aicmac_dma_desc_clear
|--> netdev_tx_reset_queue
|--> aicmac_dma_clear_descriptors
|--> aicmac_dma_clear_rx_descriptors
|--> aicmac_dma_desc_init_rx_desc
|--> aicmac_dma_clear_tx_descriptors
|--> aicmac_dma_desc_init_tx_desc
|--> aicmac_dma_display_rings< / pre > < / div > < div class = "- topic/p p" data-ofbid = "d169255e66__20250121171620" > < br / > < div class = "imagecenter" > < img class = "- topic/image image imagecenter" id = "mac_key_procedure__image_kcn_gbs_21c" src = "../../../images/mac/mac-dma.jpg" alt = "mac-dma" / > < / div > < br / > < / div >
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