From dd74282df573192e201ee716c8b621eb322c4fab Mon Sep 17 00:00:00 2001 From: "Wei Hu(Xavier)" Date: Wed, 30 Aug 2017 17:23:01 +0800 Subject: [PATCH] RDMA/hns: Initialize the PCI device for hip08 RoCE The hip08 RoCE engine is a PCI device. This patch mainly obtains some information of PCI device for hip08 RoCE from hns3 NIC driver in the initialization. Signed-off-by: Lijun Ou Signed-off-by: Shaobo Xu Signed-off-by: Wei Hu (Xavier) Signed-off-by: Doug Ledford --- drivers/infiniband/hw/hns/Kconfig | 10 ++ drivers/infiniband/hw/hns/Makefile | 4 + drivers/infiniband/hw/hns/hns_roce_device.h | 2 + drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 151 ++++++++++++++++++++++++++++ 4 files changed, 167 insertions(+) create mode 100644 drivers/infiniband/hw/hns/hns_roce_hw_v2.c diff --git a/drivers/infiniband/hw/hns/Kconfig b/drivers/infiniband/hw/hns/Kconfig index 37e33e522c19..fddb5fdf92de 100644 --- a/drivers/infiniband/hw/hns/Kconfig +++ b/drivers/infiniband/hw/hns/Kconfig @@ -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. diff --git a/drivers/infiniband/hw/hns/Makefile b/drivers/infiniband/hw/hns/Makefile index 806ac4e678bd..ff426a625e13 100644 --- a/drivers/infiniband/hw/hns/Makefile +++ b/drivers/infiniband/hw/hns/Makefile @@ -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 diff --git a/drivers/infiniband/hw/hns/hns_roce_device.h b/drivers/infiniband/hw/hns/hns_roce_device.h index aa9281e66b8b..3132b68e032f 100644 --- a/drivers/infiniband/hw/hns/hns_roce_device.h +++ b/drivers/infiniband/hw/hns/hns_roce_device.h @@ -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; diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c new file mode 100644 index 000000000000..b35c72d352d8 --- /dev/null +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -0,0 +1,151 @@ +/* + * 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 +#include +#include +#include +#include + +#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 "); +MODULE_AUTHOR("Lijun Ou "); +MODULE_AUTHOR("Shaobo Xu "); +MODULE_DESCRIPTION("Hisilicon Hip08 Family RoCE Driver"); -- 2.11.0