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Message-Id: <20250307100824.555320-2-tianx@yunsilicon.com>
Date: Fri, 07 Mar 2025 18:08:26 +0800
From: "Xin Tian" <tianx@...silicon.com>
To: <netdev@...r.kernel.org>
Cc: <leon@...nel.org>, <andrew+netdev@...n.ch>, <kuba@...nel.org>,
<pabeni@...hat.com>, <edumazet@...gle.com>, <davem@...emloft.net>,
<jeff.johnson@....qualcomm.com>, <przemyslaw.kitszel@...el.com>,
<weihg@...silicon.com>, <wanry@...silicon.com>, <jacky@...silicon.com>,
<horms@...nel.org>, <parthiban.veerasooran@...rochip.com>,
<masahiroy@...nel.org>, <kalesh-anakkur.purayil@...adcom.com>,
<geert+renesas@...der.be>
Subject: [PATCH net-next v8 01/14] xsc: Add xsc driver basic framework
1. Add yunsilicon xsc driver basic compile framework, including
xsc_pci driver and xsc_eth driver
2. Implemented PCI device initialization.
Co-developed-by: Honggang Wei <weihg@...silicon.com>
Signed-off-by: Honggang Wei <weihg@...silicon.com>
Co-developed-by: Lei Yan <jacky@...silicon.com>
Signed-off-by: Lei Yan <jacky@...silicon.com>
Signed-off-by: Xin Tian <tianx@...silicon.com>
---
MAINTAINERS | 7 +
drivers/net/ethernet/Kconfig | 1 +
drivers/net/ethernet/Makefile | 1 +
drivers/net/ethernet/yunsilicon/Kconfig | 26 +++
drivers/net/ethernet/yunsilicon/Makefile | 7 +
.../ethernet/yunsilicon/xsc/common/xsc_core.h | 43 ++++
.../net/ethernet/yunsilicon/xsc/net/Kconfig | 17 ++
.../net/ethernet/yunsilicon/xsc/net/Makefile | 9 +
.../net/ethernet/yunsilicon/xsc/pci/Kconfig | 14 ++
.../net/ethernet/yunsilicon/xsc/pci/Makefile | 9 +
.../net/ethernet/yunsilicon/xsc/pci/main.c | 214 ++++++++++++++++++
11 files changed, 348 insertions(+)
create mode 100644 drivers/net/ethernet/yunsilicon/Kconfig
create mode 100644 drivers/net/ethernet/yunsilicon/Makefile
create mode 100644 drivers/net/ethernet/yunsilicon/xsc/common/xsc_core.h
create mode 100644 drivers/net/ethernet/yunsilicon/xsc/net/Kconfig
create mode 100644 drivers/net/ethernet/yunsilicon/xsc/net/Makefile
create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/Kconfig
create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/Makefile
create mode 100644 drivers/net/ethernet/yunsilicon/xsc/pci/main.c
diff --git a/MAINTAINERS b/MAINTAINERS
index cc40a9d9b..4892dd63e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -25285,6 +25285,13 @@ S: Maintained
F: Documentation/input/devices/yealink.rst
F: drivers/input/misc/yealink.*
+YUNSILICON XSC DRIVERS
+M: Honggang Wei <weihg@...silicon.com>
+M: Xin Tian <tianx@...silicon.com>
+L: netdev@...r.kernel.org
+S: Maintained
+F: drivers/net/ethernet/yunsilicon/xsc
+
Z3FOLD COMPRESSED PAGE ALLOCATOR
M: Vitaly Wool <vitaly.wool@...sulko.com>
R: Miaohe Lin <linmiaohe@...wei.com>
diff --git a/drivers/net/ethernet/Kconfig b/drivers/net/ethernet/Kconfig
index 0baac25db..aa6016597 100644
--- a/drivers/net/ethernet/Kconfig
+++ b/drivers/net/ethernet/Kconfig
@@ -82,6 +82,7 @@ source "drivers/net/ethernet/i825xx/Kconfig"
source "drivers/net/ethernet/ibm/Kconfig"
source "drivers/net/ethernet/intel/Kconfig"
source "drivers/net/ethernet/xscale/Kconfig"
+source "drivers/net/ethernet/yunsilicon/Kconfig"
config JME
tristate "JMicron(R) PCI-Express Gigabit Ethernet support"
diff --git a/drivers/net/ethernet/Makefile b/drivers/net/ethernet/Makefile
index c03203439..c16c34d4b 100644
--- a/drivers/net/ethernet/Makefile
+++ b/drivers/net/ethernet/Makefile
@@ -51,6 +51,7 @@ obj-$(CONFIG_NET_VENDOR_INTEL) += intel/
obj-$(CONFIG_NET_VENDOR_I825XX) += i825xx/
obj-$(CONFIG_NET_VENDOR_MICROSOFT) += microsoft/
obj-$(CONFIG_NET_VENDOR_XSCALE) += xscale/
+obj-$(CONFIG_NET_VENDOR_YUNSILICON) += yunsilicon/
obj-$(CONFIG_JME) += jme.o
obj-$(CONFIG_KORINA) += korina.o
obj-$(CONFIG_LANTIQ_ETOP) += lantiq_etop.o
diff --git a/drivers/net/ethernet/yunsilicon/Kconfig b/drivers/net/ethernet/yunsilicon/Kconfig
new file mode 100644
index 000000000..1bf5b7fcf
--- /dev/null
+++ b/drivers/net/ethernet/yunsilicon/Kconfig
@@ -0,0 +1,26 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2021-2025, Shanghai Yunsilicon Technology Co., Ltd.
+# All rights reserved.
+# Yunsilicon driver configuration
+#
+
+config NET_VENDOR_YUNSILICON
+ bool "Yunsilicon devices"
+ default y
+ depends on PCI
+ depends on ARM64 || X86_64 || COMPILE_TEST
+ help
+ If you have a network (Ethernet) device belonging to this class,
+ say Y.
+
+ Note that the answer to this question doesn't directly affect the
+ kernel: saying N will just cause the configurator to skip all
+ the questions about Yunsilicon cards. If you say Y, you will be asked
+ for your specific card in the following questions.
+
+if NET_VENDOR_YUNSILICON
+
+source "drivers/net/ethernet/yunsilicon/xsc/net/Kconfig"
+source "drivers/net/ethernet/yunsilicon/xsc/pci/Kconfig"
+
+endif # NET_VENDOR_YUNSILICON
diff --git a/drivers/net/ethernet/yunsilicon/Makefile b/drivers/net/ethernet/yunsilicon/Makefile
new file mode 100644
index 000000000..05aa35c3c
--- /dev/null
+++ b/drivers/net/ethernet/yunsilicon/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2021-2025, Shanghai Yunsilicon Technology Co., Ltd.
+# All rights reserved.
+# Makefile for the Yunsilicon device drivers.
+#
+
+obj-$(CONFIG_YUNSILICON_XSC_PCI) += xsc/pci/
diff --git a/drivers/net/ethernet/yunsilicon/xsc/common/xsc_core.h b/drivers/net/ethernet/yunsilicon/xsc/common/xsc_core.h
new file mode 100644
index 000000000..0673e34fe
--- /dev/null
+++ b/drivers/net/ethernet/yunsilicon/xsc/common/xsc_core.h
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2021-2025, Shanghai Yunsilicon Technology Co., Ltd.
+ * All rights reserved.
+ */
+
+#ifndef __XSC_CORE_H
+#define __XSC_CORE_H
+
+#include <linux/pci.h>
+
+#define XSC_PCI_VENDOR_ID 0x1f67
+
+#define XSC_MC_PF_DEV_ID 0x1011
+#define XSC_MC_VF_DEV_ID 0x1012
+#define XSC_MC_PF_DEV_ID_DIAMOND 0x1021
+
+#define XSC_MF_HOST_PF_DEV_ID 0x1051
+#define XSC_MF_HOST_VF_DEV_ID 0x1052
+#define XSC_MF_SOC_PF_DEV_ID 0x1053
+
+#define XSC_MS_PF_DEV_ID 0x1111
+#define XSC_MS_VF_DEV_ID 0x1112
+
+#define XSC_MV_HOST_PF_DEV_ID 0x1151
+#define XSC_MV_HOST_VF_DEV_ID 0x1152
+#define XSC_MV_SOC_PF_DEV_ID 0x1153
+
+struct xsc_dev_resource {
+ /* protect buffer allocation according to numa node */
+ struct mutex alloc_mutex;
+};
+
+struct xsc_core_device {
+ struct pci_dev *pdev;
+ struct device *device;
+ struct xsc_dev_resource *dev_res;
+ int numa_node;
+
+ void __iomem *bar;
+ int bar_num;
+};
+
+#endif
diff --git a/drivers/net/ethernet/yunsilicon/xsc/net/Kconfig b/drivers/net/ethernet/yunsilicon/xsc/net/Kconfig
new file mode 100644
index 000000000..b2f95370f
--- /dev/null
+++ b/drivers/net/ethernet/yunsilicon/xsc/net/Kconfig
@@ -0,0 +1,17 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2021-2025, Shanghai Yunsilicon Technology Co., Ltd.
+# All rights reserved.
+# Yunsilicon driver configuration
+#
+
+config YUNSILICON_XSC_ETH
+ tristate "Yunsilicon XSC ethernet driver"
+ depends on YUNSILICON_XSC_PCI
+ depends on NET
+ select PAGE_POOL
+ help
+ This driver provides ethernet support for
+ Yunsilicon XSC devices.
+
+ To compile this driver as a module, choose M here. The module
+ will be called xsc_eth.
diff --git a/drivers/net/ethernet/yunsilicon/xsc/net/Makefile b/drivers/net/ethernet/yunsilicon/xsc/net/Makefile
new file mode 100644
index 000000000..53300be3c
--- /dev/null
+++ b/drivers/net/ethernet/yunsilicon/xsc/net/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2021-2025, Shanghai Yunsilicon Technology Co., Ltd.
+# All rights reserved.
+
+ccflags-y += -I$(srctree)/drivers/net/ethernet/yunsilicon/xsc
+
+obj-$(CONFIG_YUNSILICON_XSC_ETH) += xsc_eth.o
+
+xsc_eth-y := main.o
diff --git a/drivers/net/ethernet/yunsilicon/xsc/pci/Kconfig b/drivers/net/ethernet/yunsilicon/xsc/pci/Kconfig
new file mode 100644
index 000000000..b707da28b
--- /dev/null
+++ b/drivers/net/ethernet/yunsilicon/xsc/pci/Kconfig
@@ -0,0 +1,14 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2021-2025, Shanghai Yunsilicon Technology Co., Ltd.
+# All rights reserved.
+# Yunsilicon PCI configuration
+#
+
+config YUNSILICON_XSC_PCI
+ tristate "Yunsilicon XSC PCI driver"
+ help
+ This driver is common for Yunsilicon XSC
+ ethernet and RDMA drivers.
+
+ To compile this driver as a module, choose M here. The module
+ will be called xsc_pci.
diff --git a/drivers/net/ethernet/yunsilicon/xsc/pci/Makefile b/drivers/net/ethernet/yunsilicon/xsc/pci/Makefile
new file mode 100644
index 000000000..709270df8
--- /dev/null
+++ b/drivers/net/ethernet/yunsilicon/xsc/pci/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2021-2025, Shanghai Yunsilicon Technology Co., Ltd.
+# All rights reserved.
+
+ccflags-y += -I$(srctree)/drivers/net/ethernet/yunsilicon/xsc
+
+obj-$(CONFIG_YUNSILICON_XSC_PCI) += xsc_pci.o
+
+xsc_pci-y := main.o
diff --git a/drivers/net/ethernet/yunsilicon/xsc/pci/main.c b/drivers/net/ethernet/yunsilicon/xsc/pci/main.c
new file mode 100644
index 000000000..b8fc25679
--- /dev/null
+++ b/drivers/net/ethernet/yunsilicon/xsc/pci/main.c
@@ -0,0 +1,214 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2021-2025, Shanghai Yunsilicon Technology Co., Ltd.
+ * All rights reserved.
+ */
+
+#include "common/xsc_core.h"
+
+static const struct pci_device_id xsc_pci_id_table[] = {
+ { PCI_DEVICE(XSC_PCI_VENDOR_ID, XSC_MC_PF_DEV_ID) },
+ { PCI_DEVICE(XSC_PCI_VENDOR_ID, XSC_MC_PF_DEV_ID_DIAMOND) },
+ { PCI_DEVICE(XSC_PCI_VENDOR_ID, XSC_MF_HOST_PF_DEV_ID) },
+ { PCI_DEVICE(XSC_PCI_VENDOR_ID, XSC_MF_SOC_PF_DEV_ID) },
+ { PCI_DEVICE(XSC_PCI_VENDOR_ID, XSC_MS_PF_DEV_ID) },
+ { PCI_DEVICE(XSC_PCI_VENDOR_ID, XSC_MV_HOST_PF_DEV_ID) },
+ { PCI_DEVICE(XSC_PCI_VENDOR_ID, XSC_MV_SOC_PF_DEV_ID) },
+ { 0 }
+};
+
+static int xsc_set_dma_caps(struct pci_dev *pdev)
+{
+ int err;
+
+ err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
+ if (!err)
+ dma_set_max_seg_size(&pdev->dev, SZ_2G);
+
+ return err;
+}
+
+static int xsc_pci_init(struct xsc_core_device *xdev,
+ const struct pci_device_id *id)
+{
+ struct pci_dev *pdev = xdev->pdev;
+ void __iomem *bar_base;
+ int bar_num = 0;
+ int err;
+
+ xdev->numa_node = dev_to_node(&pdev->dev);
+
+ err = pci_enable_device(pdev);
+ if (err) {
+ pci_err(pdev, "failed to enable PCI device: err=%d\n", err);
+ goto err_out;
+ }
+
+ err = pci_request_region(pdev, bar_num, KBUILD_MODNAME);
+ if (err) {
+ pci_err(pdev, "failed to request %s pci_region=%d: err=%d\n",
+ KBUILD_MODNAME, bar_num, err);
+ goto err_disable;
+ }
+
+ pci_set_master(pdev);
+
+ err = xsc_set_dma_caps(pdev);
+ if (err) {
+ pci_err(pdev, "failed to set DMA capabilities mask: err=%d\n",
+ err);
+ goto err_clr_master;
+ }
+
+ bar_base = pci_ioremap_bar(pdev, bar_num);
+ if (!bar_base) {
+ pci_err(pdev, "failed to ioremap %s bar%d\n", KBUILD_MODNAME,
+ bar_num);
+ err = -ENOMEM;
+ goto err_clr_master;
+ }
+
+ err = pci_save_state(pdev);
+ if (err) {
+ pci_err(pdev, "pci_save_state failed: err=%d\n", err);
+ goto err_io_unmap;
+ }
+
+ xdev->bar_num = bar_num;
+ xdev->bar = bar_base;
+
+ return 0;
+
+err_io_unmap:
+ pci_iounmap(pdev, bar_base);
+err_clr_master:
+ pci_clear_master(pdev);
+ pci_release_region(pdev, bar_num);
+err_disable:
+ pci_disable_device(pdev);
+err_out:
+ return err;
+}
+
+static void xsc_pci_fini(struct xsc_core_device *xdev)
+{
+ struct pci_dev *pdev = xdev->pdev;
+
+ pci_iounmap(pdev, xdev->bar);
+ pci_clear_master(pdev);
+ pci_release_region(pdev, xdev->bar_num);
+ pci_disable_device(pdev);
+}
+
+static int xsc_dev_res_init(struct xsc_core_device *xdev)
+{
+ struct xsc_dev_resource *dev_res;
+
+ dev_res = kvzalloc(sizeof(*dev_res), GFP_KERNEL);
+ if (!dev_res)
+ return -ENOMEM;
+
+ xdev->dev_res = dev_res;
+ mutex_init(&dev_res->alloc_mutex);
+
+ return 0;
+}
+
+static void xsc_dev_res_cleanup(struct xsc_core_device *xdev)
+{
+ kfree(xdev->dev_res);
+}
+
+static int xsc_core_dev_init(struct xsc_core_device *xdev)
+{
+ int err;
+
+ err = xsc_dev_res_init(xdev);
+ if (err) {
+ pci_err(xdev->pdev, "xsc dev res init failed %d\n", err);
+ return err;
+ }
+
+ return 0;
+}
+
+static void xsc_core_dev_cleanup(struct xsc_core_device *xdev)
+{
+ xsc_dev_res_cleanup(xdev);
+}
+
+static int xsc_pci_probe(struct pci_dev *pci_dev,
+ const struct pci_device_id *id)
+{
+ struct xsc_core_device *xdev;
+ int err;
+
+ xdev = kzalloc(sizeof(*xdev), GFP_KERNEL);
+ if (!xdev)
+ return -ENOMEM;
+
+ xdev->pdev = pci_dev;
+ xdev->device = &pci_dev->dev;
+
+ pci_set_drvdata(pci_dev, xdev);
+ err = xsc_pci_init(xdev, id);
+ if (err) {
+ pci_err(pci_dev, "xsc_pci_init failed %d\n", err);
+ goto err_unset_pci_drvdata;
+ }
+
+ err = xsc_core_dev_init(xdev);
+ if (err) {
+ pci_err(pci_dev, "xsc_core_dev_init failed %d\n", err);
+ goto err_pci_fini;
+ }
+
+ return 0;
+err_pci_fini:
+ xsc_pci_fini(xdev);
+err_unset_pci_drvdata:
+ pci_set_drvdata(pci_dev, NULL);
+ kfree(xdev);
+
+ return err;
+}
+
+static void xsc_pci_remove(struct pci_dev *pci_dev)
+{
+ struct xsc_core_device *xdev = pci_get_drvdata(pci_dev);
+
+ xsc_core_dev_cleanup(xdev);
+ xsc_pci_fini(xdev);
+ pci_set_drvdata(pci_dev, NULL);
+ kfree(xdev);
+}
+
+static struct pci_driver xsc_pci_driver = {
+ .name = "xsc-pci",
+ .id_table = xsc_pci_id_table,
+ .probe = xsc_pci_probe,
+ .remove = xsc_pci_remove,
+};
+
+static int __init xsc_init(void)
+{
+ int err;
+
+ err = pci_register_driver(&xsc_pci_driver);
+ if (err) {
+ pr_err("failed to register pci driver\n");
+ return err;
+ }
+
+ return 0;
+}
+
+static void __exit xsc_fini(void)
+{
+ pci_unregister_driver(&xsc_pci_driver);
+}
+
+module_init(xsc_init);
+module_exit(xsc_fini);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Yunsilicon XSC PCI driver");
--
2.43.0
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