RDMA/hns: Initialize the PCI device for hip08 RoCE (dd74282d) · Commits · e / devices / android_kernel_oneplus_sm7250

drivers/infiniband/hw/hns/Kconfig

+10 −0

Original line number	Diff line number	Diff line
		@@ -19,3 +19,13 @@ config INFINIBAND_HNS_HIP06

		To compile this driver as a module, choose M here: the module
		will be called hns-roce-hw-v1.

		config INFINIBAND_HNS_HIP08
		tristate "Hisilicon Hip08 Family RoCE support"
		depends on INFINIBAND_HNS && PCI && HNS3
		---help---
		RoCE driver support for Hisilicon RoCE engine in Hisilicon Hip08 SoC.
		The RoCE engine is a PCI device.

		To compile this driver as a module, choose M here: the module
		will be called hns-roce-hw-v2.

drivers/infiniband/hw/hns/Makefile

+4 −0

Original line number	Diff line number	Diff line
		@@ -2,9 +2,13 @@
		# Makefile for the Hisilicon RoCE drivers.
		#

		ccflags-y := -Idrivers/net/ethernet/hisilicon/hns3

		obj-$(CONFIG_INFINIBAND_HNS) += hns-roce.o
		hns-roce-objs := hns_roce_main.o hns_roce_cmd.o hns_roce_eq.o hns_roce_pd.o \
		hns_roce_ah.o hns_roce_hem.o hns_roce_mr.o hns_roce_qp.o \
		hns_roce_cq.o hns_roce_alloc.o
		obj-$(CONFIG_INFINIBAND_HNS_HIP06) += hns-roce-hw-v1.o
		hns-roce-hw-v1-objs := hns_roce_hw_v1.o
		obj-$(CONFIG_INFINIBAND_HNS_HIP08) += hns-roce-hw-v2.o
		hns-roce-hw-v2-objs := hns_roce_hw_v2.o

drivers/infiniband/hw/hns/hns_roce_device.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -540,6 +540,8 @@ struct hns_roce_hw {
		struct hns_roce_dev {
		struct ib_device ib_dev;
		struct platform_device *pdev;
		struct pci_dev *pci_dev;
		struct device *dev;
		struct hns_roce_uar priv_uar;
		const char *irq_names[HNS_ROCE_MAX_IRQ_NUM];
		spinlock_t sm_lock;

drivers/infiniband/hw/hns/hns_roce_hw_v2.c

0 → 100644

+151 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (c) 2016-2017 Hisilicon Limited.
		*
		* This software is available to you under a choice of one of two
		* licenses. You may choose to be licensed under the terms of the GNU
		* General Public License (GPL) Version 2, available from the file
		* COPYING in the main directory of this source tree, or the
		* OpenIB.org BSD license below:
		*
		* Redistribution and use in source and binary forms, with or
		* without modification, are permitted provided that the following
		* conditions are met:
		*
		* - Redistributions of source code must retain the above
		* copyright notice, this list of conditions and the following
		* disclaimer.
		*
		* - Redistributions in binary form must reproduce the above
		* copyright notice, this list of conditions and the following
		* disclaimer in the documentation and/or other materials
		* provided with the distribution.
		*
		* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
		* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
		* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
		* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
		* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
		* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
		* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
		* SOFTWARE.
		*/

		#include <linux/acpi.h>
		#include <linux/etherdevice.h>
		#include <linux/interrupt.h>
		#include <linux/kernel.h>
		#include <rdma/ib_umem.h>

		#include "hnae3.h"
		#include "hns_roce_common.h"
		#include "hns_roce_device.h"
		#include "hns_roce_cmd.h"
		#include "hns_roce_hem.h"

		static const struct hns_roce_hw hns_roce_hw_v2;

		static const struct pci_device_id hns_roce_hw_v2_pci_tbl[] = {
		{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_25GE_RDMA), 0},
		{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_25GE_RDMA_MACSEC), 0},
		{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_100G_RDMA_MACSEC), 0},
		/* required last entry */
		{0, }
		};

		static int hns_roce_hw_v2_get_cfg(struct hns_roce_dev *hr_dev,
		struct hnae3_handle *handle)
		{
		const struct pci_device_id *id;

		id = pci_match_id(hns_roce_hw_v2_pci_tbl, hr_dev->pci_dev);
		if (!id) {
		dev_err(hr_dev->dev, "device is not compatible!\n");
		return -ENXIO;
		}

		hr_dev->hw = &hns_roce_hw_v2;

		/* Get info from NIC driver. */
		hr_dev->reg_base = handle->rinfo.roce_io_base;
		hr_dev->caps.num_ports = 1;
		hr_dev->iboe.netdevs[0] = handle->rinfo.netdev;
		hr_dev->iboe.phy_port[0] = 0;

		/* cmd issue mode: 0 is poll, 1 is event */
		hr_dev->cmd_mod = 0;
		hr_dev->loop_idc = 0;

		return 0;
		}

		static int hns_roce_hw_v2_init_instance(struct hnae3_handle *handle)
		{
		struct hns_roce_dev *hr_dev;
		int ret;

		hr_dev = (struct hns_roce_dev )ib_alloc_device(sizeof(hr_dev));
		if (!hr_dev)
		return -ENOMEM;

		hr_dev->pci_dev = handle->pdev;
		hr_dev->dev = &handle->pdev->dev;
		handle->priv = hr_dev;

		ret = hns_roce_hw_v2_get_cfg(hr_dev, handle);
		if (ret) {
		dev_err(hr_dev->dev, "Get Configuration failed!\n");
		goto error_failed_get_cfg;
		}

		ret = hns_roce_init(hr_dev);
		if (ret) {
		dev_err(hr_dev->dev, "RoCE Engine init failed!\n");
		goto error_failed_get_cfg;
		}

		return 0;

		error_failed_get_cfg:
		ib_dealloc_device(&hr_dev->ib_dev);

		return ret;
		}

		static void hns_roce_hw_v2_uninit_instance(struct hnae3_handle *handle,
		bool reset)
		{
		struct hns_roce_dev hr_dev = (struct hns_roce_dev )handle->priv;

		hns_roce_exit(hr_dev);
		ib_dealloc_device(&hr_dev->ib_dev);
		}

		static const struct hnae3_client_ops hns_roce_hw_v2_ops = {
		.init_instance = hns_roce_hw_v2_init_instance,
		.uninit_instance = hns_roce_hw_v2_uninit_instance,
		};

		static struct hnae3_client hns_roce_hw_v2_client = {
		.name = "hns_roce_hw_v2",
		.type = HNAE3_CLIENT_ROCE,
		.ops = &hns_roce_hw_v2_ops,
		};

		static int __init hns_roce_hw_v2_init(void)
		{
		return hnae3_register_client(&hns_roce_hw_v2_client);
		}

		static void __exit hns_roce_hw_v2_exit(void)
		{
		hnae3_unregister_client(&hns_roce_hw_v2_client);
		}

		module_init(hns_roce_hw_v2_init);
		module_exit(hns_roce_hw_v2_exit);

		MODULE_LICENSE("Dual BSD/GPL");
		MODULE_AUTHOR("Wei Hu <xavier.huwei@huawei.com>");
		MODULE_AUTHOR("Lijun Ou <oulijun@huawei.com>");
		MODULE_AUTHOR("Shaobo Xu <xushaobo2@huawei.com>");
		MODULE_DESCRIPTION("Hisilicon Hip08 Family RoCE Driver");