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17fcb3dc12
This is [1/3] part of hinic3 Ethernet driver initial submission. With this patch hinic3 is a valid kernel module but non-functional driver. The driver parts contained in this patch: Module initialization. PCI driver registration but with empty id_table. Auxiliary driver registration. Net device_ops registration but open/stop are empty stubs. tx/rx logic. All major data structures of the driver are fully introduced with the code that uses them but without their initialization code that requires management interface with the hw. Co-developed-by: Xin Guo <guoxin09@huawei.com> Signed-off-by: Xin Guo <guoxin09@huawei.com> Signed-off-by: Fan Gong <gongfan1@huawei.com> Co-developed-by: Gur Stavi <gur.stavi@huawei.com> Signed-off-by: Gur Stavi <gur.stavi@huawei.com> Link: https://patch.msgid.link/76a137ffdfe115c737c2c224f0c93b60ba53cc16.1747736586.git.gur.stavi@huawei.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
62 lines
1.7 KiB
C
62 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0
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// Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
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#include <linux/netdevice.h>
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#include "hinic3_hw_comm.h"
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#include "hinic3_hwdev.h"
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#include "hinic3_hwif.h"
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#include "hinic3_nic_dev.h"
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#include "hinic3_rx.h"
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#include "hinic3_tx.h"
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static int hinic3_poll(struct napi_struct *napi, int budget)
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{
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struct hinic3_irq_cfg *irq_cfg =
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container_of(napi, struct hinic3_irq_cfg, napi);
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struct hinic3_nic_dev *nic_dev;
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bool busy = false;
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int work_done;
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nic_dev = netdev_priv(irq_cfg->netdev);
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busy |= hinic3_tx_poll(irq_cfg->txq, budget);
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if (unlikely(!budget))
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return 0;
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work_done = hinic3_rx_poll(irq_cfg->rxq, budget);
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busy |= work_done >= budget;
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if (busy)
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return budget;
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if (likely(napi_complete_done(napi, work_done)))
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hinic3_set_msix_state(nic_dev->hwdev, irq_cfg->msix_entry_idx,
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HINIC3_MSIX_ENABLE);
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return work_done;
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}
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void qp_add_napi(struct hinic3_irq_cfg *irq_cfg)
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{
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struct hinic3_nic_dev *nic_dev = netdev_priv(irq_cfg->netdev);
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netif_queue_set_napi(irq_cfg->netdev, irq_cfg->irq_id,
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NETDEV_QUEUE_TYPE_RX, &irq_cfg->napi);
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netif_queue_set_napi(irq_cfg->netdev, irq_cfg->irq_id,
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NETDEV_QUEUE_TYPE_TX, &irq_cfg->napi);
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netif_napi_add(nic_dev->netdev, &irq_cfg->napi, hinic3_poll);
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napi_enable(&irq_cfg->napi);
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}
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void qp_del_napi(struct hinic3_irq_cfg *irq_cfg)
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{
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napi_disable(&irq_cfg->napi);
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netif_queue_set_napi(irq_cfg->netdev, irq_cfg->irq_id,
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NETDEV_QUEUE_TYPE_RX, NULL);
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netif_queue_set_napi(irq_cfg->netdev, irq_cfg->irq_id,
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NETDEV_QUEUE_TYPE_TX, NULL);
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netif_stop_subqueue(irq_cfg->netdev, irq_cfg->irq_id);
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netif_napi_del(&irq_cfg->napi);
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}
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