1*17fcb3dcSFan Gong // SPDX-License-Identifier: GPL-2.0 2*17fcb3dcSFan Gong // Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved. 3*17fcb3dcSFan Gong 4*17fcb3dcSFan Gong #include <linux/netdevice.h> 5*17fcb3dcSFan Gong 6*17fcb3dcSFan Gong #include "hinic3_hw_comm.h" 7*17fcb3dcSFan Gong #include "hinic3_hwdev.h" 8*17fcb3dcSFan Gong #include "hinic3_hwif.h" 9*17fcb3dcSFan Gong #include "hinic3_nic_dev.h" 10*17fcb3dcSFan Gong #include "hinic3_rx.h" 11*17fcb3dcSFan Gong #include "hinic3_tx.h" 12*17fcb3dcSFan Gong 13*17fcb3dcSFan Gong static int hinic3_poll(struct napi_struct *napi, int budget) 14*17fcb3dcSFan Gong { 15*17fcb3dcSFan Gong struct hinic3_irq_cfg *irq_cfg = 16*17fcb3dcSFan Gong container_of(napi, struct hinic3_irq_cfg, napi); 17*17fcb3dcSFan Gong struct hinic3_nic_dev *nic_dev; 18*17fcb3dcSFan Gong bool busy = false; 19*17fcb3dcSFan Gong int work_done; 20*17fcb3dcSFan Gong 21*17fcb3dcSFan Gong nic_dev = netdev_priv(irq_cfg->netdev); 22*17fcb3dcSFan Gong 23*17fcb3dcSFan Gong busy |= hinic3_tx_poll(irq_cfg->txq, budget); 24*17fcb3dcSFan Gong 25*17fcb3dcSFan Gong if (unlikely(!budget)) 26*17fcb3dcSFan Gong return 0; 27*17fcb3dcSFan Gong 28*17fcb3dcSFan Gong work_done = hinic3_rx_poll(irq_cfg->rxq, budget); 29*17fcb3dcSFan Gong busy |= work_done >= budget; 30*17fcb3dcSFan Gong 31*17fcb3dcSFan Gong if (busy) 32*17fcb3dcSFan Gong return budget; 33*17fcb3dcSFan Gong 34*17fcb3dcSFan Gong if (likely(napi_complete_done(napi, work_done))) 35*17fcb3dcSFan Gong hinic3_set_msix_state(nic_dev->hwdev, irq_cfg->msix_entry_idx, 36*17fcb3dcSFan Gong HINIC3_MSIX_ENABLE); 37*17fcb3dcSFan Gong 38*17fcb3dcSFan Gong return work_done; 39*17fcb3dcSFan Gong } 40*17fcb3dcSFan Gong 41*17fcb3dcSFan Gong void qp_add_napi(struct hinic3_irq_cfg *irq_cfg) 42*17fcb3dcSFan Gong { 43*17fcb3dcSFan Gong struct hinic3_nic_dev *nic_dev = netdev_priv(irq_cfg->netdev); 44*17fcb3dcSFan Gong 45*17fcb3dcSFan Gong netif_queue_set_napi(irq_cfg->netdev, irq_cfg->irq_id, 46*17fcb3dcSFan Gong NETDEV_QUEUE_TYPE_RX, &irq_cfg->napi); 47*17fcb3dcSFan Gong netif_queue_set_napi(irq_cfg->netdev, irq_cfg->irq_id, 48*17fcb3dcSFan Gong NETDEV_QUEUE_TYPE_TX, &irq_cfg->napi); 49*17fcb3dcSFan Gong netif_napi_add(nic_dev->netdev, &irq_cfg->napi, hinic3_poll); 50*17fcb3dcSFan Gong napi_enable(&irq_cfg->napi); 51*17fcb3dcSFan Gong } 52*17fcb3dcSFan Gong 53*17fcb3dcSFan Gong void qp_del_napi(struct hinic3_irq_cfg *irq_cfg) 54*17fcb3dcSFan Gong { 55*17fcb3dcSFan Gong napi_disable(&irq_cfg->napi); 56*17fcb3dcSFan Gong netif_queue_set_napi(irq_cfg->netdev, irq_cfg->irq_id, 57*17fcb3dcSFan Gong NETDEV_QUEUE_TYPE_RX, NULL); 58*17fcb3dcSFan Gong netif_queue_set_napi(irq_cfg->netdev, irq_cfg->irq_id, 59*17fcb3dcSFan Gong NETDEV_QUEUE_TYPE_TX, NULL); 60*17fcb3dcSFan Gong netif_stop_subqueue(irq_cfg->netdev, irq_cfg->irq_id); 61*17fcb3dcSFan Gong netif_napi_del(&irq_cfg->napi); 62*17fcb3dcSFan Gong } 63