From: Lijun Ou <oulijun@huawei.com>
To: <dledford@redhat.com>, <sean.hefty@intel.com>,
<hal.rosenstock@gmail.com>, <davem@davemloft.net>,
<jeffrey.t.kirsher@intel.com>, <jiri@mellanox.com>,
<ogerlitz@mellanox.com>
Cc: <linux-rdma@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<netdev@vger.kernel.org>, <gongyangming@huawei.com>,
<xiaokun@huawei.com>, <tangchaofei@huawei.com>,
<oulijun@huawei.com>, <haifeng.wei@huawei.com>,
<yisen.zhuang@huawei.com>, <yankejian@huawei.com>,
<charles.chenxin@huawei.com>, <linuxarm@huawei.com>
Subject: [PATCH v10 03/22] IB/hns: Add initial main frame driver and get cfg info
Date: Thu, 16 Jun 2016 22:35:11 +0800 [thread overview]
Message-ID: <1466087730-54856-4-git-send-email-oulijun@huawei.com> (raw)
In-Reply-To: <1466087730-54856-1-git-send-email-oulijun@huawei.com>
This patch mainly added the initial bare main driver. It
could get the relative configure information of net node.
Signed-off-by: Wei Hu <xavier.huwei@huawei.com>
Signed-off-by: Nenglong Zhao <zhaonenglong@hisilicon.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
---
PATCH v9:
This fixes comments given by Leon Romanovsky over the PATCH v8:
Link: https://lkml.org/lkml/2016/6/9/56
PATCH v8/v7/v6:
- No change over the PATCH v5
PATCH v5:
- The initial patch which was redesigned based on the second patch
in PATCH v4
---
---
drivers/infiniband/hw/hns/hns_roce_device.h | 73 ++++++++++
drivers/infiniband/hw/hns/hns_roce_main.c | 200 ++++++++++++++++++++++++++++
2 files changed, 273 insertions(+)
create mode 100644 drivers/infiniband/hw/hns/hns_roce_device.h
create mode 100644 drivers/infiniband/hw/hns/hns_roce_main.c
diff --git a/drivers/infiniband/hw/hns/hns_roce_device.h b/drivers/infiniband/hw/hns/hns_roce_device.h
new file mode 100644
index 0000000..946b470
--- /dev/null
+++ b/drivers/infiniband/hw/hns/hns_roce_device.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2016 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.
+ */
+
+#ifndef _HNS_ROCE_DEVICE_H
+#define _HNS_ROCE_DEVICE_H
+
+#include <linux/platform_device.h>
+#include <linux/radix-tree.h>
+#include <linux/semaphore.h>
+#include <rdma/ib_addr.h>
+#include <rdma/ib_smi.h>
+#include <rdma/ib_umem.h>
+#include <rdma/ib_user_verbs.h>
+#include <rdma/ib_verbs.h>
+
+#define DRV_NAME "hns_roce"
+
+#define HNS_ROCE_MAX_IRQ_NUM 34
+#define HNS_ROCE_MAX_PORTS 6
+
+struct hns_roce_ib_iboe {
+ struct net_device *netdevs[HNS_ROCE_MAX_PORTS];
+ u8 phy_port[HNS_ROCE_MAX_PORTS];
+};
+
+struct hns_roce_caps {
+ u8 num_ports;
+};
+
+struct hns_roce_dev {
+ struct ib_device ib_dev;
+ struct platform_device *pdev;
+ const char *irq_names;
+ struct hns_roce_ib_iboe iboe;
+
+ int irq[HNS_ROCE_MAX_IRQ_NUM];
+ u8 __iomem *reg_base;
+ struct hns_roce_caps caps;
+
+ int cmd_mod;
+ int loop_idc;
+};
+
+#endif /* _HNS_ROCE_DEVICE_H */
diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c
new file mode 100644
index 0000000..8924ce3
--- /dev/null
+++ b/drivers/infiniband/hw/hns/hns_roce_main.c
@@ -0,0 +1,200 @@
+/*
+ * Copyright (c) 2016 Hisilicon Limited.
+ * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved.
+ *
+ * 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/cdev.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/dma-mapping.h>
+#include <linux/ethtool.h>
+#include <linux/etherdevice.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_net.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <net/ipv6.h>
+#include <net/addrconf.h>
+#include <rdma/ib_addr.h>
+#include <rdma/ib_smi.h>
+#include <rdma/ib_umem.h>
+#include <rdma/ib_user_verbs.h>
+#include <rdma/ib_verbs.h>
+#include "hns_roce_device.h"
+
+static int hns_roce_get_cfg(struct hns_roce_dev *hr_dev)
+{
+ int i;
+ u8 phy_port;
+ int port_cnt = 0;
+ struct device *dev = &hr_dev->pdev->dev;
+ struct device_node *np = dev->of_node;
+ struct device_node *net_node;
+ struct net_device *netdev = NULL;
+ struct platform_device *pdev = NULL;
+ struct resource *res;
+
+ if (!of_device_is_compatible(np, "hisilicon,hns-roce-v1")) {
+ dev_err(dev, "device no compatible!\n");
+ return -EINVAL;
+ }
+
+ res = platform_get_resource(hr_dev->pdev, IORESOURCE_MEM, 0);
+ hr_dev->reg_base = devm_ioremap_resource(dev, res);
+ if (!hr_dev->reg_base)
+ return -ENOMEM;
+
+ for (i = 0; i < HNS_ROCE_MAX_PORTS; i++) {
+ net_node = of_parse_phandle(np, "eth-handle", i);
+ if (net_node) {
+ pdev = of_find_device_by_node(net_node);
+ netdev = platform_get_drvdata(pdev);
+ phy_port = (u8)i;
+ if (netdev) {
+ hr_dev->iboe.netdevs[port_cnt] = netdev;
+ hr_dev->iboe.phy_port[port_cnt] = phy_port;
+ } else {
+ return -ENODEV;
+ }
+ port_cnt++;
+ }
+ }
+
+ hr_dev->caps.num_ports = port_cnt;
+
+ /* Cmd issue mode: 0 is poll, 1 is event */
+ hr_dev->cmd_mod = 1;
+ hr_dev->loop_idc = 0;
+
+ for (i = 0; i < HNS_ROCE_MAX_IRQ_NUM; i++) {
+ hr_dev->irq[i] = platform_get_irq(hr_dev->pdev, i);
+ if (hr_dev->irq[i] <= 0) {
+ dev_err(dev, "Get No.%d irq resource failed!\n", i);
+ return -EINVAL;
+ }
+
+ if (of_property_read_string_index(np, "interrupt-names", i,
+ &hr_dev->irq_names))
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/**
+* hns_roce_probe - RoCE driver entrance
+* @pdev: pointer to platform device
+* Return : int
+*
+*/
+static int hns_roce_probe(struct platform_device *pdev)
+{
+ int ret;
+ struct hns_roce_dev *hr_dev;
+ struct device *dev = &pdev->dev;
+
+ hr_dev = (struct hns_roce_dev *)ib_alloc_device(sizeof(*hr_dev));
+ if (!hr_dev)
+ return -ENOMEM;
+
+ memset((u8 *)hr_dev + sizeof(struct ib_device), 0,
+ sizeof(struct hns_roce_dev) - sizeof(struct ib_device));
+
+ hr_dev->pdev = pdev;
+ platform_set_drvdata(pdev, hr_dev);
+
+ if (!dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64ULL)))
+ dev_info(dev, "set mask to 64bit\n");
+ else if (!dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32ULL)))
+ dev_info(dev, "set mask to 32bit\n");
+ else {
+ dev_err(dev, "No usable DMA addressing mode\n");
+ ret = -EIO;
+ goto error_failed_get_cfg;
+ }
+
+ ret = hns_roce_get_cfg(hr_dev);
+ if (ret) {
+ dev_err(dev, "Get Configuration failed!\n");
+ goto error_failed_get_cfg;
+ }
+
+error_failed_get_cfg:
+ ib_dealloc_device(&hr_dev->ib_dev);
+
+ return ret;
+}
+
+/**
+* hns_roce_remove - remove roce device
+* @pdev: pointer to platform device
+*/
+static int hns_roce_remove(struct platform_device *pdev)
+{
+ struct hns_roce_dev *hr_dev = platform_get_drvdata(pdev);
+
+ ib_dealloc_device(&hr_dev->ib_dev);
+
+ return 0;
+}
+
+static const struct of_device_id hns_roce_of_match[] = {
+ { .compatible = "hisilicon,hns-roce-v1",},
+ {},
+};
+MODULE_DEVICE_TABLE(of, hns_roce_of_match);
+
+static struct platform_driver hns_roce_driver = {
+ .probe = hns_roce_probe,
+ .remove = hns_roce_remove,
+ .driver = {
+ .name = DRV_NAME,
+ .of_match_table = hns_roce_of_match,
+ },
+};
+
+module_platform_driver(hns_roce_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Wei Hu <xavier.huwei@huawei.com>");
+MODULE_AUTHOR("Nenglong Zhao <zhaonenglong@hisilicon.com>");
+MODULE_AUTHOR("Lijun Ou <oulijun@huawei.com>");
+MODULE_DESCRIPTION("HISILICON RoCE driver");
+MODULE_ALIAS("platform:" DRV_NAME);
--
1.9.1
next prev parent reply other threads:[~2016-06-16 14:28 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-16 14:35 [PATCH v10 00/22] Add HiSilicon RoCE driver Lijun Ou
2016-06-16 14:35 ` [PATCH v10 01/22] net: hns: Add reset function support for " Lijun Ou
2016-06-24 11:49 ` Leon Romanovsky
2016-06-27 6:41 ` oulijun
2016-06-16 14:35 ` [PATCH v10 02/22] devicetree: bindings: IB: Add binding document for HiSilicon RoCE Lijun Ou
2016-06-16 14:35 ` Lijun Ou [this message]
2016-06-24 11:48 ` [PATCH v10 03/22] IB/hns: Add initial main frame driver and get cfg info Leon Romanovsky
[not found] ` <576E5D0B.7010003@huawei.com>
2016-06-27 7:00 ` Leon Romanovsky
2016-06-27 7:29 ` Wei Hu (Xavier)
2016-06-16 14:35 ` [PATCH v10 04/22] IB/hns: Add RoCE engine reset function Lijun Ou
2016-06-24 14:59 ` Leon Romanovsky
[not found] ` <576E5C21.5030904@huawei.com>
2016-06-27 8:01 ` Leon Romanovsky
2016-06-27 8:31 ` oulijun
2016-06-28 6:31 ` Wei Hu (Xavier)
2016-06-28 8:09 ` Leon Romanovsky
2016-06-16 14:35 ` [PATCH v10 05/22] IB/hns: Add initial profile resource Lijun Ou
2016-06-24 15:10 ` Leon Romanovsky
2016-06-28 6:56 ` oulijun
2016-06-16 14:35 ` [PATCH v10 06/22] IB/hns: Add initial cmd operation Lijun Ou
2016-06-20 13:33 ` Leon Romanovsky
2016-06-21 10:50 ` Wei Hu (Xavier)
2016-06-21 11:28 ` Leon Romanovsky
2016-06-21 13:01 ` Wei Hu (Xavier)
2016-06-22 4:54 ` Leon Romanovsky
2016-06-22 6:50 ` Wei Hu (Xavier)
2016-06-16 14:35 ` [PATCH v10 07/22] IB/hns: Add event queue support Lijun Ou
2016-06-24 15:46 ` Leon Romanovsky
2016-06-24 15:56 ` Doug Ledford
2016-06-29 8:53 ` oulijun
2016-06-29 10:41 ` Leon Romanovsky
2016-06-16 14:35 ` [PATCH v10 08/22] IB/hns: Add icm support Lijun Ou
2016-06-17 9:58 ` Leon Romanovsky
[not found] ` <57677314.70909@huawei.com>
2016-06-20 6:06 ` Leon Romanovsky
2016-06-20 7:49 ` Wei Hu (Xavier)
2016-06-20 9:27 ` Leon Romanovsky
2016-06-20 9:48 ` Wei Hu (Xavier)
2016-06-20 13:04 ` Leon Romanovsky
2016-06-21 4:37 ` Wei Hu (Xavier)
2016-06-21 11:55 ` Leon Romanovsky
2016-06-22 3:53 ` Wei Hu (Xavier)
2016-06-16 14:35 ` [PATCH v10 09/22] IB/hns: Add hca support Lijun Ou
2016-06-24 15:50 ` Leon Romanovsky
2016-06-16 14:35 ` [PATCH v10 10/22] IB/hns: Add process flow to init RoCE engine Lijun Ou
2016-06-16 14:35 ` [PATCH v10 11/22] IB/hns: Add IB device registration Lijun Ou
2016-06-16 14:35 ` [PATCH v10 12/22] IB/hns: Set mtu and gid support Lijun Ou
2016-06-16 14:35 ` [PATCH v10 13/22] IB/hns: Add interface of the protocol stack registration Lijun Ou
2016-06-16 14:35 ` [PATCH v10 14/22] IB/hns: Add operations support for IB device and port Lijun Ou
2016-06-16 14:35 ` [PATCH v10 15/22] IB/hns: Add PD operations support Lijun Ou
2016-06-16 14:35 ` [PATCH v10 16/22] IB/hns: Add ah " Lijun Ou
2016-06-16 14:35 ` [PATCH v10 17/22] IB/hns: Add QP " Lijun Ou
2016-06-16 14:35 ` [PATCH v10 18/22] IB/hns: Add CQ " Lijun Ou
2016-06-16 14:35 ` [PATCH v10 19/22] IB/hns: Add memory region " Lijun Ou
2016-06-16 14:35 ` [PATCH v10 20/22] IB/hns: Add operation for getting immutable port Lijun Ou
2016-06-16 14:35 ` [PATCH v10 21/22] IB/hns: Kconfig and Makefile for RoCE module Lijun Ou
2016-06-16 14:35 ` [PATCH v10 22/22] MAINTAINERS: Add maintainers for HiSilicon RoCE driver Lijun Ou
2016-06-24 15:55 ` [PATCH v10 00/22] Add " Leon Romanovsky
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