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Message-ID: <F4CC6FACFEB3C54C9141D49AD221F7F93B82D05C@FRAEML521-MBX.china.huawei.com>
Date: Mon, 31 Jul 2017 09:04:18 +0000
From: Salil Mehta <salil.mehta@...wei.com>
To: Leon Romanovsky <leon@...nel.org>
CC: "davem@...emloft.net" <davem@...emloft.net>,
"Zhuangyuzeng (Yisen)" <yisen.zhuang@...wei.com>,
huangdaode <huangdaode@...ilicon.com>,
"lipeng (Y)" <lipeng321@...wei.com>,
"mehta.salil.lnk@...il.com" <mehta.salil.lnk@...il.com>,
"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
Linuxarm <linuxarm@...wei.com>
Subject: RE: [PATCH V5 net-next 2/8] net: hns3: Add support of the HNAE3
framework
Hi Leon,
> -----Original Message-----
> From: linux-rdma-owner@...r.kernel.org [mailto:linux-rdma-
> owner@...r.kernel.org] On Behalf Of Leon Romanovsky
> Sent: Sunday, July 30, 2017 10:59 AM
> To: Salil Mehta
> Cc: davem@...emloft.net; Zhuangyuzeng (Yisen); huangdaode; lipeng (Y);
> mehta.salil.lnk@...il.com; netdev@...r.kernel.org; linux-
> kernel@...r.kernel.org; linux-rdma@...r.kernel.org; Linuxarm
> Subject: Re: [PATCH V5 net-next 2/8] net: hns3: Add support of the
> HNAE3 framework
>
> On Fri, Jul 28, 2017 at 11:26:46PM +0100, Salil Mehta wrote:
> > This patch adds the support of the HNAE3 (Hisilicon Network
> > Acceleration Engine 3) framework support to the HNS3 driver.
> >
> > Framework facilitates clients like ENET(HNS3 Ethernet Driver), RoCE
> > and user-space Ethernet drivers (like ODP etc.) to register with
> HNAE3
> > devices and their associated operations.
> >
> > Signed-off-by: Daode Huang <huangdaode@...ilicon.com>
> > Signed-off-by: lipeng <lipeng321@...wei.com>
> > Signed-off-by: Salil Mehta <salil.mehta@...wei.com>
> > Signed-off-by: Yisen Zhuang <yisen.zhuang@...wei.com>
> > ---
> > Patch V5: Addressed following comments
> > 1. Leon Romanovsky:
> > https://lkml.org/lkml/2017/7/23/67
> > Patch V4: Addressed following comments
> > 1. Andrew Lunn:
> > https://lkml.org/lkml/2017/6/17/233
> > https://lkml.org/lkml/2017/6/18/105
> > 2. Bo Yu:
> > https://lkml.org/lkml/2017/6/18/112
> > 3. Stephen Hamminger:
> > https://lkml.org/lkml/2017/6/19/778
> > Patch V3: Addressed below comments
> > 1. Andrew Lunn:
> > https://lkml.org/lkml/2017/6/13/1025
> > Patch V2: No change
> > Patch V1: Initial Submit
> > ---
> > drivers/net/ethernet/hisilicon/hns3/hnae3.c | 319
> ++++++++++++++++++++
> > drivers/net/ethernet/hisilicon/hns3/hnae3.h | 444
> ++++++++++++++++++++++++++++
> > 2 files changed, 763 insertions(+)
> > create mode 100644 drivers/net/ethernet/hisilicon/hns3/hnae3.c
> > create mode 100644 drivers/net/ethernet/hisilicon/hns3/hnae3.h
> >
> > diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.c
> b/drivers/net/ethernet/hisilicon/hns3/hnae3.c
> > new file mode 100644
> > index 0000000..d28b69d
> > --- /dev/null
> > +++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.c
> > @@ -0,0 +1,319 @@
> > +/*
> > + * Copyright (c) 2016-2017 Hisilicon Limited.
> > + *
> > + * This program is free software; you can redistribute it and/or
> modify
> > + * it under the terms of the GNU General Public License as published
> by
> > + * the Free Software Foundation; either version 2 of the License, or
> > + * (at your option) any later version.
> > + */
> > +
> > +#include <linux/list.h>
> > +#include <linux/slab.h>
> > +#include <linux/spinlock.h>
> > +
> > +#include "hnae3.h"
> > +
> > +static LIST_HEAD(hnae3_ae_algo_list);
> > +static LIST_HEAD(hnae3_client_list);
> > +static LIST_HEAD(hnae3_ae_dev_list);
> > +
> > +/* we are keeping things simple and using single lock for all the
> > + * list. This is a non-critical code so other updations, if happen
> > + * in parallel, can wait.
> > + */
> > +static DEFINE_MUTEX(hnae3_common_lock);
> > +
> > +static bool hnae3_client_match(enum hnae3_client_type client_type,
> > + enum hnae3_dev_type dev_type)
> > +{
> > + if (dev_type == HNAE3_DEV_KNIC) {
> > + switch (client_type) {
> > + case HNAE3_CLIENT_KNIC:
> > + case HNAE3_CLIENT_ROCE:
> > + return true;
> > + default:
> > + return false;
> > + }
> > + } else if (dev_type == HNAE3_DEV_UNIC) {
> > + switch (client_type) {
> > + case HNAE3_CLIENT_UNIC:
> > + return true;
> > + default:
> > + return false;
> > + }
> > + } else {
> > + return false;
> > + }
> > +}
>
> Slightly compact version:
>
> static bool hnae3_client_match(enum hnae3_client_type client_type,
> enum hnae3_dev_type dev_type)
> {
> if (dev_type == HNAE3_DEV_KNIC &&
> client_type == HNAE3_CLIENT_KNIC || client_type ==
> HNAE3_CLIENT_ROCE)
> return true;
> if (dev_type == HNAE3_DEV_UNIC && client_type ==
> HNAE3_CLIENT_UNIC)
> return true;
> return false;
> }
Ok will change but I have felt usually with switch code looks more readable.
Thanks
>
>
> > +
> > +static int hnae3_match_n_instantiate(struct hnae3_client *client,
> > + struct hnae3_ae_dev *ae_dev,
> > + bool is_reg, bool *matched)
> > +{
> > + int ret;
> > +
> > + *matched = false;
> > +
> > + /* check if this client matches the type of ae_dev */
> > + if (!(hnae3_client_match(client->type, ae_dev->dev_type) &&
> > + hnae_get_bit(ae_dev->flag, HNAE3_DEV_INITED_B))) {
> > + return 0;
> > + }
> > + /* there is a match of client and dev */
> > + *matched = true;
> > +
> > + if (!(ae_dev->ops && ae_dev->ops->init_client_instance &&
> > + ae_dev->ops->uninit_client_instance)) {
> > + dev_err(&ae_dev->pdev->dev,
> > + "ae_dev or client init/uninit ops are null\n");
> > + return -EOPNOTSUPP;
> > + }
>
> You should check it during registration phase, IMHO in other places it
> is
> safe to assume that you have init/uninit functions.
Yes, makes sense. Will change this.
Thanks
>
> > +
> > + /* now, (un-)instantiate client by calling lower layer */
> > + if (is_reg) {
> > + ret = ae_dev->ops->init_client_instance(client, ae_dev);
> > + if (ret)
> > + dev_err(&ae_dev->pdev->dev,
> > + "fail to instantiate client\n");
> > + return ret;
> > + }
> > +
> > + ae_dev->ops->uninit_client_instance(client, ae_dev);
> > + return 0;
> > +}
> > +
> > +int hnae3_register_client(struct hnae3_client *client)
> > +{
> > + struct hnae3_client *client_tmp;
> > + struct hnae3_ae_dev *ae_dev;
> > + bool matched;
> > + int ret = 0;
> > +
> > + mutex_lock(&hnae3_common_lock);
> > + /* one system should only have one client for every type */
> > + list_for_each_entry(client_tmp, &hnae3_client_list, node) {
> > + if (client_tmp->type == client->type)
> > + goto exit;
> > + }
> > +
> > + list_add_tail(&client->node, &hnae3_client_list);
> > +
> > + /* initialize the client on every matched port */
> > + list_for_each_entry(ae_dev, &hnae3_ae_dev_list, node) {
> > + /* if the client could not be initialized on current port,
> for
> > + * any error reasons, move on to next available port
> > + */
> > + ret = hnae3_match_n_instantiate(client, ae_dev, true,
> &matched);
> > + if (ret)
> > + dev_err(&ae_dev->pdev->dev,
> > + "match and instantiation failed for port\n");
> > + }
> > +
> > +exit:
> > + mutex_unlock(&hnae3_common_lock);
> > +
> > + return ret;
> > +}
> > +EXPORT_SYMBOL(hnae3_register_client);
> > +
> > +void hnae3_unregister_client(struct hnae3_client *client)
> > +{
> > + struct hnae3_ae_dev *ae_dev;
> > + bool matched;
> > +
> > + mutex_lock(&hnae3_common_lock);
> > + /* un-initialize the client on every matched port */
> > + list_for_each_entry(ae_dev, &hnae3_ae_dev_list, node) {
> > + hnae3_match_n_instantiate(client, ae_dev, false, &matched);
> > + }
> > +
> > + list_del(&client->node);
> > + mutex_unlock(&hnae3_common_lock);
> > +}
> > +EXPORT_SYMBOL(hnae3_unregister_client);
> > +
> > +/* hnae_ae_register - register a AE engine to hnae framework
> > + * @hdev: the hnae ae engine device
> > + * @owner: the module who provides this dev
> > + * NOTE: the duplicated name will not be checked
> > + */
> > +int hnae3_register_ae_algo(struct hnae3_ae_algo *ae_algo)
> > +{
> > + const struct pci_device_id *id;
> > + struct hnae3_ae_dev *ae_dev;
> > + struct hnae3_client *client;
> > + bool matched;
> > + int ret = 0;
> > +
> > + mutex_lock(&hnae3_common_lock);
> > +
> > + list_add_tail(&ae_algo->node, &hnae3_ae_algo_list);
> > +
> > + /* Check if this algo/ops matches the list of ae_devs */
> > + list_for_each_entry(ae_dev, &hnae3_ae_dev_list, node) {
> > + id = pci_match_id(ae_algo->pdev_id_table, ae_dev->pdev);
> > + if (!id)
> > + continue;
> > +
> > + /* ae_dev init should set flag */
> > + ae_dev->ops = ae_algo->ops;
> > + ret = ae_algo->ops->init_ae_dev(ae_dev);
> > + if (ret) {
> > + dev_err(&ae_dev->pdev->dev, "init ae_dev error.\n");
> > + continue;
> > + }
> > +
> > + hnae_set_bit(ae_dev->flag, HNAE3_DEV_INITED_B, 1);
> > +
> > + /* check the client list for the match with this ae_dev
> type and
> > + * initialize the figure out client instance
> > + */
> > + list_for_each_entry(client, &hnae3_client_list, node) {
> > + ret = hnae3_match_n_instantiate(client, ae_dev, true,
> > + &matched);
> > + if (ret)
> > + dev_err(&ae_dev->pdev->dev,
> > + "match and instantiation failed\n");
> > + if (matched)
> > + break;
> > + }
> > + }
> > +
> > + mutex_unlock(&hnae3_common_lock);
> > +
> > + return ret;
> > +}
> > +EXPORT_SYMBOL(hnae3_register_ae_algo);
> > +
> > +/* hnae_ae_unregister - unregisters a HNAE AE engine
> > + * @cdev: the device to unregister
> > + */
> > +void hnae3_unregister_ae_algo(struct hnae3_ae_algo *ae_algo)
> > +{
> > + const struct pci_device_id *id;
> > + struct hnae3_ae_dev *ae_dev;
> > + struct hnae3_client *client;
> > + bool matched;
> > +
> > + mutex_lock(&hnae3_common_lock);
> > + /* Check if there are matched ae_dev */
> > + list_for_each_entry(ae_dev, &hnae3_ae_dev_list, node) {
> > + id = pci_match_id(ae_algo->pdev_id_table, ae_dev->pdev);
> > + if (!id)
> > + continue;
> > +
> > + /* check the client list for the match with this ae_dev
> type and
> > + * un-initialize the figure out client instance
> > + */
> > + list_for_each_entry(client, &hnae3_client_list, node) {
> > + hnae3_match_n_instantiate(client, ae_dev, false,
> > + &matched);
> > + if (matched)
> > + break;
> > + }
> > +
> > + ae_algo->ops->uninit_ae_dev(ae_dev);
> > + hnae_set_bit(ae_dev->flag, HNAE3_DEV_INITED_B, 0);
> > + }
> > +
> > + list_del(&ae_algo->node);
> > + mutex_unlock(&hnae3_common_lock);
> > +}
> > +EXPORT_SYMBOL(hnae3_unregister_ae_algo);
> > +
> > +/* hnae_ae_register - register a AE engine to hnae framework
> > + * @hdev: the hnae ae engine device
> > + * @owner: the module who provides this dev
> > + * NOTE: the duplicated name will not be checked
> > + */
> > +int hnae3_register_ae_dev(struct hnae3_ae_dev *ae_dev)
> > +{
> > + const struct pci_device_id *id;
> > + struct hnae3_ae_algo *ae_algo;
> > + struct hnae3_client *client;
> > + bool matched;
> > + int ret = 0;
> > +
> > + mutex_lock(&hnae3_common_lock);
> > + list_add_tail(&ae_dev->node, &hnae3_ae_dev_list);
> > +
> > + /* Check if there are matched ae_algo */
> > + list_for_each_entry(ae_algo, &hnae3_ae_algo_list, node) {
> > + id = pci_match_id(ae_algo->pdev_id_table, ae_dev->pdev);
> > + if (!id)
> > + continue;
> > +
> > + ae_dev->ops = ae_algo->ops;
> > +
> > + if (!ae_dev->ops) {
> > + dev_err(&ae_dev->pdev->dev, "ae_dev ops are null\n");
> > + goto out_err;
> > + }
> > +
> > + /* ae_dev init should set flag */
> > + ret = ae_dev->ops->init_ae_dev(ae_dev);
> > + if (ret) {
> > + dev_err(&ae_dev->pdev->dev, "init ae_dev error\n");
> > + goto out_err;
> > + }
> > +
> > + hnae_set_bit(ae_dev->flag, HNAE3_DEV_INITED_B, 1);
> > + break;
> > + }
> > +
> > + /* check the client list for the match with this ae_dev type and
> > + * initialize the figure out client instance
> > + */
> > + list_for_each_entry(client, &hnae3_client_list, node) {
> > + ret = hnae3_match_n_instantiate(client, ae_dev, true,
> > + &matched);
> > + if (ret)
> > + dev_err(&ae_dev->pdev->dev,
> > + "match and instantiation failed\n");
> > + if (matched)
> > + break;
> > + }
> > +
> > +out_err:
> > + mutex_unlock(&hnae3_common_lock);
> > +
> > + return ret;
> > +}
> > +EXPORT_SYMBOL(hnae3_register_ae_dev);
> > +
> > +/* hnae_ae_unregister - unregisters a HNAE AE engine
> > + * @cdev: the device to unregister
> > + */
> > +void hnae3_unregister_ae_dev(struct hnae3_ae_dev *ae_dev)
> > +{
> > + const struct pci_device_id *id;
> > + struct hnae3_ae_algo *ae_algo;
> > + struct hnae3_client *client;
> > + bool matched;
> > +
> > + mutex_lock(&hnae3_common_lock);
> > + /* Check if there are matched ae_algo */
> > + list_for_each_entry(ae_algo, &hnae3_ae_algo_list, node) {
> > + id = pci_match_id(ae_algo->pdev_id_table, ae_dev->pdev);
> > + if (!id)
> > + continue;
> > +
> > + list_for_each_entry(client, &hnae3_client_list, node) {
> > + hnae3_match_n_instantiate(client, ae_dev, false,
> > + &matched);
> > + if (matched)
> > + break;
> > + }
> > +
> > + ae_algo->ops->uninit_ae_dev(ae_dev);
> > + hnae_set_bit(ae_dev->flag, HNAE3_DEV_INITED_B, 0);
> > + }
> > +
> > + list_del(&ae_dev->node);
> > + mutex_unlock(&hnae3_common_lock);
> > +}
> > +EXPORT_SYMBOL(hnae3_unregister_ae_dev);
> > +
> > +MODULE_AUTHOR("Huawei Tech. Co., Ltd.");
> > +MODULE_LICENSE("GPL");
> > +MODULE_DESCRIPTION("HNAE3(Hisilicon Network Acceleration Engine)
> Framework");
> > diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
> b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
> > new file mode 100644
> > index 0000000..c2f6411
> > --- /dev/null
> > +++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
> > @@ -0,0 +1,444 @@
> > +/*
> > + * Copyright (c) 2016-2017 Hisilicon Limited.
> > + *
> > + * This program is free software; you can redistribute it and/or
> modify
> > + * it under the terms of the GNU General Public License as published
> by
> > + * the Free Software Foundation; either version 2 of the License, or
> > + * (at your option) any later version.
> > + */
> > +
> > +#ifndef __HNAE_H
> > +#define __HNAE_H
> > +
> > +/* Names used in this framework:
> > + * ae handle (handle):
> > + * a set of queues provided by AE
> > + * ring buffer queue (rbq):
> > + * the channel between upper layer and the AE, can do tx and
> rx
> > + * ring:
> > + * a tx or rx channel within a rbq
> > + * ring description (desc):
> > + * an element in the ring with packet information
> > + * buffer:
> > + * a memory region referred by desc with the full packet
> payload
> > + *
> > + * "num" means a static number set as a parameter, "count" mean a
> dynamic
> > + * number set while running
> > + * "cb" means control block
> > + */
> > +
> > +#include <linux/acpi.h>
> > +#include <linux/delay.h>
> > +#include <linux/device.h>
> > +#include <linux/module.h>
> > +#include <linux/netdevice.h>
> > +#include <linux/pci.h>
> > +#include <linux/types.h>
> > +
> > +/* Device IDs */
> > +#define HNAE3_DEV_ID_GE 0xA220
> > +#define HNAE3_DEV_ID_25GE 0xA221
> > +#define HNAE3_DEV_ID_25GE_RDMA 0xA222
> > +#define HNAE3_DEV_ID_25GE_RDMA_MACSEC 0xA223
> > +#define HNAE3_DEV_ID_50GE_RDMA 0xA224
> > +#define HNAE3_DEV_ID_50GE_RDMA_MACSEC 0xA225
> > +#define HNAE3_DEV_ID_100G_RDMA_MACSEC 0xA226
> > +#define HNAE3_DEV_ID_100G_VF 0xA22E
> > +#define HNAE3_DEV_ID_100G_RDMA_DCB_PFC_VF 0xA22F
> > +
> > +#define HNAE3_CLASS_NAME_SIZE 16
> > +
> > +#define HNAE3_DEV_INITED_B 0x0
> > +#define HNAE_DEV_SUPPORT_ROCE_B 0x1
> > +
> > +#define ring_ptr_move_fw(ring, p) \
> > + ((ring)->p = ((ring)->p + 1) % (ring)->desc_num)
> > +#define ring_ptr_move_bw(ring, p) \
> > + ((ring)->p = ((ring)->p - 1 + (ring)->desc_num) % (ring)-
> >desc_num)
> > +
> > +enum hns_desc_type {
> > + DESC_TYPE_SKB,
> > + DESC_TYPE_PAGE,
> > +};
> > +
> > +struct hnae3_handle;
> > +
> > +struct hnae3_queue {
> > + void __iomem *io_base;
> > + struct hnae3_ae_algo *ae_algo;
> > + struct hnae3_handle *handle;
> > + int tqp_index; /* index in a handle */
> > + u32 buf_size; /* size for hnae_desc->addr, preset by AE */
> > + u16 desc_num; /* total number of desc */
> > +};
> > +
> > +/*hnae3 loop mode*/
> > +enum hnae3_loop {
> > + HNAE3_MAC_INTER_LOOP_MAC,
> > + HNAE3_MAC_INTER_LOOP_SERDES,
> > + HNAE3_MAC_INTER_LOOP_PHY,
> > + HNAE3_MAC_LOOP_NONE,
> > +};
> > +
> > +enum hnae3_client_type {
> > + HNAE3_CLIENT_KNIC,
> > + HNAE3_CLIENT_UNIC,
> > + HNAE3_CLIENT_ROCE,
> > +};
> > +
> > +enum hnae3_dev_type {
> > + HNAE3_DEV_KNIC,
> > + HNAE3_DEV_UNIC,
> > +};
> > +
> > +/* mac media type */
> > +enum hnae3_media_type {
> > + HNAE3_MEDIA_TYPE_UNKNOWN,
> > + HNAE3_MEDIA_TYPE_FIBER,
> > + HNAE3_MEDIA_TYPE_COPPER,
> > + HNAE3_MEDIA_TYPE_BACKPLANE,
> > +};
> > +
> > +struct hnae3_vector_info {
> > + u8 __iomem *io_addr;
> > + int vector;
> > +};
> > +
> > +#define HNAE3_RING_TYPE_B 0
> > +#define HNAE3_RING_TYPE_TX 0
> > +#define HNAE3_RING_TYPE_RX 1
> > +
> > +struct hnae3_ring_chain_node {
> > + struct hnae3_ring_chain_node *next;
> > + u32 tqp_index;
> > + u32 flag;
> > +};
> > +
> > +#define HNAE3_IS_TX_RING(node) \
> > + (((node)->flag & (1 << HNAE3_RING_TYPE_B)) == HNAE3_RING_TYPE_TX)
> > +
> > +struct hnae3_client_ops {
> > + int (*init_instance)(struct hnae3_handle *handle);
> > + void (*uninit_instance)(struct hnae3_handle *handle, bool reset);
> > + void (*link_status_change)(struct hnae3_handle *handle, bool
> state);
> > +};
> > +
> > +#define HNAE3_CLIENT_NAME_LENGTH 16
> > +struct hnae3_client {
> > + char name[HNAE3_CLIENT_NAME_LENGTH];
> > + u16 version;
> > + unsigned long state;
> > + enum hnae3_client_type type;
> > + const struct hnae3_client_ops *ops;
> > + struct list_head node;
> > +};
> > +
> > +struct hnae3_ae_dev {
> > + struct pci_dev *pdev;
> > + const struct hnae3_ae_ops *ops;
> > + struct list_head node;
> > + u32 flag;
> > + enum hnae3_dev_type dev_type;
> > + void *priv;
> > +};
> > +
> > +/* This struct defines the operation on the handle.
> > + *
> > + * init_ae_dev(): (mandatory)
> > + * Get PF configure from pci_dev and initialize PF hardware
> > + * uninit_ae_dev()
> > + * Disable PF device and release PF resource
> > + * register_client
> > + * Register client to ae_dev
> > + * unregister_client()
> > + * Unregister client from ae_dev
> > + * start()
> > + * Enable the hardware
> > + * stop()
> > + * Disable the hardware
> > + * get_status()
> > + * Get the carrier state of the back channel of the handle, 1 for
> ok, 0 for
> > + * non-ok
> > + * get_ksettings_an_result()
> > + * Get negotiation status,speed and duplex
> > + * update_speed_duplex_h()
> > + * Update hardware speed and duplex
> > + * get_media_type()
> > + * Get media type of MAC
> > + * adjust_link()
> > + * Adjust link status
> > + * set_loopback()
> > + * Set loopback
> > + * set_promisc_mode
> > + * Set promisc mode
> > + * set_mtu()
> > + * set mtu
> > + * get_pauseparam()
> > + * get tx and rx of pause frame use
> > + * set_pauseparam()
> > + * set tx and rx of pause frame use
> > + * set_autoneg()
> > + * set auto autonegotiation of pause frame use
> > + * get_autoneg()
> > + * get auto autonegotiation of pause frame use
> > + * get_coalesce_usecs()
> > + * get usecs to delay a TX interrupt after a packet is sent
> > + * get_rx_max_coalesced_frames()
> > + * get Maximum number of packets to be sent before a TX interrupt.
> > + * set_coalesce_usecs()
> > + * set usecs to delay a TX interrupt after a packet is sent
> > + * set_coalesce_frames()
> > + * set Maximum number of packets to be sent before a TX interrupt.
> > + * get_mac_addr()
> > + * get mac address
> > + * set_mac_addr()
> > + * set mac address
> > + * add_uc_addr
> > + * Add unicast addr to mac table
> > + * rm_uc_addr
> > + * Remove unicast addr from mac table
> > + * set_mc_addr()
> > + * Set multicast address
> > + * add_mc_addr
> > + * Add multicast address to mac table
> > + * rm_mc_addr
> > + * Remove multicast address from mac table
> > + * update_stats()
> > + * Update Old network device statistics
> > + * get_ethtool_stats()
> > + * Get ethtool network device statistics
> > + * get_strings()
> > + * Get a set of strings that describe the requested objects
> > + * get_sset_count()
> > + * Get number of strings that @get_strings will write
> > + * update_led_status()
> > + * Update the led status
> > + * set_led_id()
> > + * Set led id
> > + * get_regs()
> > + * Get regs dump
> > + * get_regs_len()
> > + * Get the len of the regs dump
> > + * get_rss_key_size()
> > + * Get rss key size
> > + * get_rss_indir_size()
> > + * Get rss indirection table size
> > + * get_rss()
> > + * Get rss table
> > + * set_rss()
> > + * Set rss table
> > + * get_tc_size()
> > + * Get tc size of handle
> > + * get_vector()
> > + * Get vector number and vector information
> > + * map_ring_to_vector()
> > + * Map rings to vector
> > + * unmap_ring_from_vector()
> > + * Unmap rings from vector
> > + * add_tunnel_udp()
> > + * Add tunnel information to hardware
> > + * del_tunnel_udp()
> > + * Delete tunnel information from hardware
> > + * reset_queue()
> > + * Reset queue
> > + * get_fw_version()
> > + * Get firmware version
> > + * get_mdix_mode()
> > + * Get media typr of phy
> > + * set_vlan_filter()
> > + * Set vlan filter config of Ports
> > + * set_vf_vlan_filter()
> > + * Set vlan filter config of vf
> > + */
> > +struct hnae3_ae_ops {
> > + int (*init_ae_dev)(struct hnae3_ae_dev *ae_dev);
> > + void (*uninit_ae_dev)(struct hnae3_ae_dev *ae_dev);
> > +
> > + int (*init_client_instance)(struct hnae3_client *client,
> > + struct hnae3_ae_dev *ae_dev);
> > + void (*uninit_client_instance)(struct hnae3_client *client,
> > + struct hnae3_ae_dev *ae_dev);
> > + int (*start)(struct hnae3_handle *handle);
> > + void (*stop)(struct hnae3_handle *handle);
> > + int (*get_status)(struct hnae3_handle *handle);
> > + void (*get_ksettings_an_result)(struct hnae3_handle *handle,
> > + u8 *auto_neg, u32 *speed, u8 *duplex);
> > +
> > + int (*update_speed_duplex_h)(struct hnae3_handle *handle);
> > + int (*cfg_mac_speed_dup_h)(struct hnae3_handle *handle, int
> speed,
> > + u8 duplex);
> > +
> > + void (*get_media_type)(struct hnae3_handle *handle, u8
> *media_type);
> > + void (*adjust_link)(struct hnae3_handle *handle, int speed, int
> duplex);
> > + int (*set_loopback)(struct hnae3_handle *handle,
> > + enum hnae3_loop loop_mode, bool en);
> > +
> > + void (*set_promisc_mode)(struct hnae3_handle *handle, u32 en);
> > + int (*set_mtu)(struct hnae3_handle *handle, int new_mtu);
> > +
> > + void (*get_pauseparam)(struct hnae3_handle *handle,
> > + u32 *auto_neg, u32 *rx_en, u32 *tx_en);
> > + int (*set_pauseparam)(struct hnae3_handle *handle,
> > + u32 auto_neg, u32 rx_en, u32 tx_en);
> > +
> > + int (*set_autoneg)(struct hnae3_handle *handle, bool enable);
> > + int (*get_autoneg)(struct hnae3_handle *handle);
> > +
> > + void (*get_coalesce_usecs)(struct hnae3_handle *handle,
> > + u32 *tx_usecs, u32 *rx_usecs);
> > + void (*get_rx_max_coalesced_frames)(struct hnae3_handle *handle,
> > + u32 *tx_frames, u32 *rx_frames);
> > + int (*set_coalesce_usecs)(struct hnae3_handle *handle, u32
> timeout);
> > + int (*set_coalesce_frames)(struct hnae3_handle *handle,
> > + u32 coalesce_frames);
> > + void (*get_coalesce_range)(struct hnae3_handle *handle,
> > + u32 *tx_frames_low, u32 *rx_frames_low,
> > + u32 *tx_frames_high, u32 *rx_frames_high,
> > + u32 *tx_usecs_low, u32 *rx_usecs_low,
> > + u32 *tx_usecs_high, u32 *rx_usecs_high);
> > +
> > + void (*get_mac_addr)(struct hnae3_handle *handle, u8 *p);
> > + int (*set_mac_addr)(struct hnae3_handle *handle, void *p);
> > + int (*add_uc_addr)(struct hnae3_handle *handle,
> > + const unsigned char *addr);
> > + int (*rm_uc_addr)(struct hnae3_handle *handle,
> > + const unsigned char *addr);
> > + int (*set_mc_addr)(struct hnae3_handle *handle, void *addr);
> > + int (*add_mc_addr)(struct hnae3_handle *handle,
> > + const unsigned char *addr);
> > + int (*rm_mc_addr)(struct hnae3_handle *handle,
> > + const unsigned char *addr);
> > +
> > + void (*set_tso_stats)(struct hnae3_handle *handle, int enable);
> > + void (*update_stats)(struct hnae3_handle *handle,
> > + struct net_device_stats *net_stats);
> > + void (*get_stats)(struct hnae3_handle *handle, u64 *data);
> > +
> > + void (*get_strings)(struct hnae3_handle *handle,
> > + u32 stringset, u8 *data);
> > + int (*get_sset_count)(struct hnae3_handle *handle, int
> stringset);
> > +
> > + void (*get_regs)(struct hnae3_handle *handle, void *data);
> > + int (*get_regs_len)(struct hnae3_handle *handle);
> > +
> > + u32 (*get_rss_key_size)(struct hnae3_handle *handle);
> > + u32 (*get_rss_indir_size)(struct hnae3_handle *handle);
> > + int (*get_rss)(struct hnae3_handle *handle, u32 *indir, u8 *key,
> > + u8 *hfunc);
> > + int (*set_rss)(struct hnae3_handle *handle, const u32 *indir,
> > + const u8 *key, const u8 hfunc);
> > +
> > + int (*get_tc_size)(struct hnae3_handle *handle);
> > +
> > + int (*get_vector)(struct hnae3_handle *handle, u16 vector_num,
> > + struct hnae3_vector_info *vector_info);
> > + int (*map_ring_to_vector)(struct hnae3_handle *handle,
> > + int vector_num,
> > + struct hnae3_ring_chain_node *vr_chain);
> > + int (*unmap_ring_from_vector)(struct hnae3_handle *handle,
> > + int vector_num,
> > + struct hnae3_ring_chain_node *vr_chain);
> > +
> > + int (*add_tunnel_udp)(struct hnae3_handle *handle, u16 port_num);
> > + int (*del_tunnel_udp)(struct hnae3_handle *handle, u16 port_num);
> > +
> > + void (*reset_queue)(struct hnae3_handle *handle, u16 queue_id);
> > + u32 (*get_fw_version)(struct hnae3_handle *handle);
> > + void (*get_mdix_mode)(struct hnae3_handle *handle,
> > + u8 *tp_mdix_ctrl, u8 *tp_mdix);
> > +
> > + int (*set_vlan_filter)(struct hnae3_handle *handle, __be16 proto,
> > + u16 vlan_id, bool is_kill);
> > + int (*set_vf_vlan_filter)(struct hnae3_handle *handle, int vfid,
> > + u16 vlan, u8 qos, __be16 proto);
> > +};
> > +
> > +struct hnae3_ae_algo {
> > + const struct hnae3_ae_ops *ops;
> > + struct list_head node;
> > + char name[HNAE3_CLASS_NAME_SIZE];
> > + const struct pci_device_id *pdev_id_table;
> > +};
> > +
> > +#define HNAE3_INT_NAME_LEN (IFNAMSIZ + 16)
> > +#define HNAE3_ITR_COUNTDOWN_START 100
> > +
> > +struct hnae3_tc_info {
> > + u16 tqp_offset; /* TQP offset from base TQP */
> > + u16 tqp_count; /* Total TQPs */
> > + u8 up; /* user priority */
> > + u8 tc; /* TC index */
> > + bool enable; /* If this TC is enable or not */
> > +};
> > +
> > +#define HNAE3_MAX_TC 8
> > +struct hnae3_knic_private_info {
> > + struct net_device *netdev; /* Set by KNIC client when init
> instance */
> > + u16 rss_size; /* Allocated RSS queues */
> > + u16 rx_buf_len;
> > + u16 num_desc;
> > +
> > + u8 num_tc; /* Total number of enabled TCs */
> > + struct hnae3_tc_info tc_info[HNAE3_MAX_TC]; /* Idx of array is HW
> TC */
> > +
> > + u16 num_tqps; /* total number of TQPs in this handle
> */
> > + struct hnae3_queue **tqp; /* array base of all TQPs in this
> instance */
> > +};
> > +
> > +struct hnae3_roce_private_info {
> > + struct net_device *netdev;
> > + void __iomem *roce_io_base;
> > + int base_vector;
> > + int num_vectors;
> > +};
> > +
> > +struct hnae3_unic_private_info {
> > + struct net_device *netdev;
> > + u16 rx_buf_len;
> > + u16 num_desc;
> > + u16 num_tqps; /* total number of tqps in this handle */
> > + struct hnae3_queue **tqp; /* array base of all TQPs of this
> instance */
> > +};
> > +
> > +#define HNAE3_SUPPORT_MAC_LOOPBACK 1
> > +#define HNAE3_SUPPORT_PHY_LOOPBACK 2
> > +#define HNAE3_SUPPORT_SERDES_LOOPBACK 4
> > +
> > +struct hnae3_handle {
> > + struct hnae3_client *client;
> > + struct pci_dev *pdev;
> > + void *priv;
> > + struct hnae3_ae_algo *ae_algo; /* the class who provides this
> handle */
> > + u64 flags; /* Indicate the capabilities for this handle*/
> > +
> > + union {
> > + struct net_device *netdev; /* first member */
> > + struct hnae3_knic_private_info kinfo;
> > + struct hnae3_unic_private_info uinfo;
> > + struct hnae3_roce_private_info rinfo;
> > + };
> > +
> > + u32 numa_node_mask; /* for multi-chip support */
> > +};
> > +
> > +#define hnae_set_field(origin, mask, shift, val) \
> > + do { \
> > + (origin) &= (~(mask)); \
> > + (origin) |= ((val) << (shift)) & (mask); \
> > + } while (0)
> > +#define hnae_get_field(origin, mask, shift) (((origin) & (mask)) >>
> (shift))
> > +
> > +#define hnae_set_bit(origin, shift, val) \
> > + hnae_set_field((origin), (0x1 << (shift)), (shift), (val))
> > +#define hnae_get_bit(origin, shift) \
> > + hnae_get_field((origin), (0x1 << (shift)), (shift))
> > +
> > +int hnae3_register_ae_dev(struct hnae3_ae_dev *ae_dev);
> > +void hnae3_unregister_ae_dev(struct hnae3_ae_dev *ae_dev);
> > +
> > +void hnae3_unregister_ae_algo(struct hnae3_ae_algo *ae_algo);
> > +int hnae3_register_ae_algo(struct hnae3_ae_algo *ae_algo);
> > +
> > +void hnae3_unregister_client(struct hnae3_client *client);
> > +int hnae3_register_client(struct hnae3_client *client);
> > +#endif
> > --
> > 2.7.4
> >
> >
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