1 // SPDX-License-Identifier: GPL-2.0 2 // Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved. 3 4 #include <linux/netdevice.h> 5 6 #include "hinic3_hw_comm.h" 7 #include "hinic3_hwdev.h" 8 #include "hinic3_hwif.h" 9 #include "hinic3_nic_dev.h" 10 #include "hinic3_rx.h" 11 #include "hinic3_tx.h" 12 13 static int hinic3_poll(struct napi_struct *napi, int budget) 14 { 15 struct hinic3_irq_cfg *irq_cfg = 16 container_of(napi, struct hinic3_irq_cfg, napi); 17 struct hinic3_nic_dev *nic_dev; 18 bool busy = false; 19 int work_done; 20 21 nic_dev = netdev_priv(irq_cfg->netdev); 22 23 busy |= hinic3_tx_poll(irq_cfg->txq, budget); 24 25 if (unlikely(!budget)) 26 return 0; 27 28 work_done = hinic3_rx_poll(irq_cfg->rxq, budget); 29 busy |= work_done >= budget; 30 31 if (busy) 32 return budget; 33 34 if (likely(napi_complete_done(napi, work_done))) 35 hinic3_set_msix_state(nic_dev->hwdev, irq_cfg->msix_entry_idx, 36 HINIC3_MSIX_ENABLE); 37 38 return work_done; 39 } 40 41 void qp_add_napi(struct hinic3_irq_cfg *irq_cfg) 42 { 43 struct hinic3_nic_dev *nic_dev = netdev_priv(irq_cfg->netdev); 44 45 netif_queue_set_napi(irq_cfg->netdev, irq_cfg->irq_id, 46 NETDEV_QUEUE_TYPE_RX, &irq_cfg->napi); 47 netif_queue_set_napi(irq_cfg->netdev, irq_cfg->irq_id, 48 NETDEV_QUEUE_TYPE_TX, &irq_cfg->napi); 49 netif_napi_add(nic_dev->netdev, &irq_cfg->napi, hinic3_poll); 50 napi_enable(&irq_cfg->napi); 51 } 52 53 void qp_del_napi(struct hinic3_irq_cfg *irq_cfg) 54 { 55 napi_disable(&irq_cfg->napi); 56 netif_queue_set_napi(irq_cfg->netdev, irq_cfg->irq_id, 57 NETDEV_QUEUE_TYPE_RX, NULL); 58 netif_queue_set_napi(irq_cfg->netdev, irq_cfg->irq_id, 59 NETDEV_QUEUE_TYPE_TX, NULL); 60 netif_stop_subqueue(irq_cfg->netdev, irq_cfg->irq_id); 61 netif_napi_del(&irq_cfg->napi); 62 } 63