5545b7b9f2
Replace the work queue based RX flow with a NAPI implementation
Remove rx_thread and dpmaif_rxq_work.
Enable GRO on RX path.
Introduce dummy network device. its responsibility is
- Binds one NAPI object for each DL HW queue and acts as
the agent of all those network devices.
- Use NAPI object to poll DL packets.
- Helps to dispatch each packet to the network interface.
Signed-off-by: Haijun Liu <haijun.liu@mediatek.com>
Co-developed-by: Sreehari Kancharla <sreehari.kancharla@linux.intel.com>
Signed-off-by: Sreehari Kancharla <sreehari.kancharla@linux.intel.com>
Signed-off-by: Chandrashekar Devegowda <chandrashekar.devegowda@intel.com>
Acked-by: Ricardo Martinez <ricardo.martinez@linux.intel.com>
Acked-by: M Chetan Kumar <m.chetan.kumar@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only
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*
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* Copyright (c) 2021, MediaTek Inc.
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* Copyright (c) 2021-2022, Intel Corporation.
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*
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* Authors:
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* Haijun Liu <haijun.liu@mediatek.com>
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* Moises Veleta <moises.veleta@intel.com>
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*
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* Contributors:
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* Amir Hanania <amir.hanania@intel.com>
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* Chiranjeevi Rapolu <chiranjeevi.rapolu@intel.com>
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* Ricardo Martinez <ricardo.martinez@linux.intel.com>
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*/
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#ifndef __T7XX_NETDEV_H__
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#define __T7XX_NETDEV_H__
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#include <linux/bits.h>
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#include <linux/netdevice.h>
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#include <linux/types.h>
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#include "t7xx_hif_dpmaif.h"
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#include "t7xx_pci.h"
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#include "t7xx_state_monitor.h"
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#define RXQ_NUM DPMAIF_RXQ_NUM
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#define NIC_DEV_MAX 21
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#define NIC_DEV_DEFAULT 2
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#define CCMNI_NETDEV_WDT_TO (1 * HZ)
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#define CCMNI_MTU_MAX 3000
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#define NIC_NAPI_POLL_BUDGET 128
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struct t7xx_ccmni {
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u8 index;
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atomic_t usage;
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struct net_device *dev;
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struct t7xx_ccmni_ctrl *ctlb;
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};
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struct t7xx_ccmni_ctrl {
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struct t7xx_pci_dev *t7xx_dev;
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struct dpmaif_ctrl *hif_ctrl;
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struct t7xx_ccmni *ccmni_inst[NIC_DEV_MAX];
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struct dpmaif_callbacks callbacks;
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unsigned int nic_dev_num;
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unsigned int md_sta;
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struct t7xx_fsm_notifier md_status_notify;
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bool wwan_is_registered;
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struct net_device dummy_dev;
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struct napi_struct *napi[RXQ_NUM];
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atomic_t napi_usr_refcnt;
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bool is_napi_en;
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};
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int t7xx_ccmni_init(struct t7xx_pci_dev *t7xx_dev);
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void t7xx_ccmni_exit(struct t7xx_pci_dev *t7xx_dev);
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#endif /* __T7XX_NETDEV_H__ */
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