[PATCH v4 01/15] net/xsc: add xsc PMD framework

["WanRenyong" <wanry@yunsilicon.com>]

Add xsc PMD framework, doc and build infrastructure, supporting
PCI probe.

Signed-off-by: WanRenyong <wanry@yunsilicon.com>
---
 .mailmap                               |  5 ++
 MAINTAINERS                            | 10 +++
 doc/guides/nics/features/xsc.ini       |  9 +++
 doc/guides/nics/index.rst              |  1 +
 doc/guides/nics/xsc.rst                | 31 +++++++++
 doc/guides/rel_notes/release_25_03.rst |  4 ++
 drivers/net/meson.build                |  1 +
 drivers/net/xsc/meson.build            | 11 ++++
 drivers/net/xsc/xsc_defs.h             | 15 +++++
 drivers/net/xsc/xsc_ethdev.c           | 89 ++++++++++++++++++++++++++
 drivers/net/xsc/xsc_ethdev.h           | 15 +++++
 drivers/net/xsc/xsc_log.h              | 24 +++++++
 12 files changed, 215 insertions(+)
 create mode 100644 doc/guides/nics/features/xsc.ini
 create mode 100644 doc/guides/nics/xsc.rst
 create mode 100644 drivers/net/xsc/meson.build
 create mode 100644 drivers/net/xsc/xsc_defs.h
 create mode 100644 drivers/net/xsc/xsc_ethdev.c
 create mode 100644 drivers/net/xsc/xsc_ethdev.h
 create mode 100644 drivers/net/xsc/xsc_log.h

diff --git a/.mailmap b/.mailmap
index 818798273f..18293215c3 100644
--- a/.mailmap
+++ b/.mailmap
@@ -370,6 +370,7 @@ Dongdong Liu <liudongdong3@huawei.com>
 Dongsheng Rong <rongdongsheng@baidu.com>
 Dongsu Han <dongsuh@cs.cmu.edu>
 Dong Wang <dong1.wang@intel.com>
+Dongwei Xu <xudw@yunsilicon.com>
 Dongyang Pan <197020236@qq.com>
 Dong Zhou <dongzhou@nvidia.com> <dongz@mellanox.com>
 Don Provan <dprovan@bivio.net>
@@ -1062,6 +1063,7 @@ Nagadheeraj Rottela <rnagadheeraj@marvell.com>
 Naga Harish K S V <s.v.naga.harish.k@intel.com>
 Naga Suresh Somarowthu <naga.sureshx.somarowthu@intel.com>
 Nalla Pradeep <pnalla@marvell.com>
+Na Na <nana@yunsilicon.com>
 Na Na <nana.nn@alibaba-inc.com>
 Nan Chen <whutchennan@gmail.com>
 Nandini Persad <nandinipersad361@gmail.com>
@@ -1306,6 +1308,7 @@ Ronak Doshi <ronak.doshi@broadcom.com> <doshir@vmware.com>
 Ron Beider <rbeider@amazon.com>
 Ronghua Zhang <rzhang@vmware.com>
 RongQiang Xie <xie.rongqiang@zte.com.cn>
+Rong Qian <qianr@yunsilicon.com>
 RongQing Li <lirongqing@baidu.com>
 Rongwei Liu <rongweil@nvidia.com>
 Rory Sexton <rory.sexton@intel.com>
@@ -1633,6 +1636,7 @@ Waldemar Dworakowski <waldemar.dworakowski@intel.com>
 Walter Heymans <walter.heymans@corigine.com>
 Wang Sheng-Hui <shhuiw@gmail.com>
 Wangyu (Eric) <seven.wangyu@huawei.com>
+WanRenyong <wanry@yunsilicon.com>
 Waterman Cao <waterman.cao@intel.com>
 Wathsala Vithanage <wathsala.vithanage@arm.com>
 Weichun Chen <weichunx.chen@intel.com>
@@ -1686,6 +1690,7 @@ Xiaonan Zhang <xiaonanx.zhang@intel.com>
 Xiao Wang <xiao.w.wang@intel.com>
 Xiaoxiao Zeng <xiaoxiaox.zeng@intel.com>
 Xiaoxin Peng <xiaoxin.peng@broadcom.com>
+Xiaoxiong Zhang <zhangxx@yunsilicon.com>
 Xiaoyu Min <jackmin@nvidia.com> <jackmin@mellanox.com>
 Xiaoyun Li <xiaoyun.li@intel.com>
 Xiaoyun Wang <cloud.wangxiaoyun@huawei.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index 60bdcce543..3426658486 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1075,6 +1075,16 @@ F: drivers/net/avp/
 F: doc/guides/nics/avp.rst
 F: doc/guides/nics/features/avp.ini
 
+Yunsilicon xsc
+M: WanRenyong <wanry@yunsilicon.com>
+M: Na Na <nana@yunsilicon.com>
+M: Rong Qian <qianr@yunsilicon.com>
+M: Xiaoxiong Zhang <zhangxx@yunsilicon.com>
+M: Dongwei Xu <xudw@yunsilicon.com>
+F: drivers/net/xsc/
+F: doc/guides/nics/xsc.rst
+F: doc/guides/nics/features/xsc.ini
+
 ZTE zxdh - EXPERIMENTAL
 M: Junlong Wang <wang.junlong1@zte.com.cn>
 M: Lijie Shan <shan.lijie@zte.com.cn>
diff --git a/doc/guides/nics/features/xsc.ini b/doc/guides/nics/features/xsc.ini
new file mode 100644
index 0000000000..b5c44ce535
--- /dev/null
+++ b/doc/guides/nics/features/xsc.ini
@@ -0,0 +1,9 @@
+;
+; Supported features of the 'xsc' network poll mode driver.
+;
+; Refer to default.ini for the full list of available PMD features.
+;
+[Features]
+Linux                = Y
+ARMv8                = Y
+x86-64               = Y
diff --git a/doc/guides/nics/index.rst b/doc/guides/nics/index.rst
index 50688d9f64..10a2eca3b0 100644
--- a/doc/guides/nics/index.rst
+++ b/doc/guides/nics/index.rst
@@ -70,4 +70,5 @@ Network Interface Controller Drivers
     vhost
     virtio
     vmxnet3
+    xsc
     zxdh
diff --git a/doc/guides/nics/xsc.rst b/doc/guides/nics/xsc.rst
new file mode 100644
index 0000000000..8e189db541
--- /dev/null
+++ b/doc/guides/nics/xsc.rst
@@ -0,0 +1,31 @@
+..  SPDX-License-Identifier: BSD-3-Clause
+    Copyright 2024 Yunsilicon Technology Co., Ltd
+
+XSC Poll Mode Driver
+======================
+
+The xsc PMD (**librte_net_xsc**) provides poll mode driver support for
+10/25/50/100/200 Gbps Yunsilicon metaScale Series Network Adapters.
+
+Supported NICs
+--------------
+
+The following Yunsilicon device models are supported by the same xsc driver:
+
+  - metaScale-200S
+  - metaScale-200
+  - metaScale-100Q
+  - metaScale-50
+
+Prerequisites
+--------------
+
+- Follow the DPDK :ref:`Getting Started Guide for Linux <linux_gsg>` to setup the basic DPDK environment.
+
+- Learning about Yunsilicon metaScale Series NICs using
+  `<https://www.yunsilicon.com/#/productInformation>`_.
+
+Limitations or Known issues
+---------------------------
+32bit ARCHs are not supported.
+Windows and BSD are not supported yet.
diff --git a/doc/guides/rel_notes/release_25_03.rst b/doc/guides/rel_notes/release_25_03.rst
index 426dfcd982..6f766add72 100644
--- a/doc/guides/rel_notes/release_25_03.rst
+++ b/doc/guides/rel_notes/release_25_03.rst
@@ -55,6 +55,10 @@ New Features
      Also, make sure to start the actual text at the margin.
      =======================================================
 
+* **Added Yunsilicon xsc net driver [EXPERIMENTAL].**
+
+  * Added the PMD for Yunsilicon metaScale serials NICs.
+
 
 Removed Items
 -------------
diff --git a/drivers/net/meson.build b/drivers/net/meson.build
index dafd637ba4..c1ca7b0b39 100644
--- a/drivers/net/meson.build
+++ b/drivers/net/meson.build
@@ -63,6 +63,7 @@ drivers = [
         'vhost',
         'virtio',
         'vmxnet3',
+        'xsc',
         'zxdh',
 ]
 std_deps = ['ethdev', 'kvargs'] # 'ethdev' also pulls in mbuf, net, eal etc
diff --git a/drivers/net/xsc/meson.build b/drivers/net/xsc/meson.build
new file mode 100644
index 0000000000..84a09a23de
--- /dev/null
+++ b/drivers/net/xsc/meson.build
@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright 2025 Yunsilicon Technology Co., Ltd.
+
+if not is_linux or not dpdk_conf.get('RTE_ARCH_64')
+    build = false
+    reason = 'only supported on 64bit Linux'
+endif
+
+sources = files(
+        'xsc_ethdev.c',
+)
diff --git a/drivers/net/xsc/xsc_defs.h b/drivers/net/xsc/xsc_defs.h
new file mode 100644
index 0000000000..7c91d3443f
--- /dev/null
+++ b/drivers/net/xsc/xsc_defs.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2025 Yunsilicon Technology Co., Ltd.
+ */
+
+#ifndef XSC_DEFS_H_
+#define XSC_DEFS_H_
+
+#define XSC_PCI_VENDOR_ID		0x1f67
+#define XSC_PCI_DEV_ID_MS		0x1111
+#define XSC_PCI_DEV_ID_MSVF		0x1112
+#define XSC_PCI_DEV_ID_MVH		0x1151
+#define XSC_PCI_DEV_ID_MVHVF		0x1152
+#define XSC_PCI_DEV_ID_MVS		0x1153
+
+#endif /* XSC_DEFS_H_ */
diff --git a/drivers/net/xsc/xsc_ethdev.c b/drivers/net/xsc/xsc_ethdev.c
new file mode 100644
index 0000000000..a7dca46127
--- /dev/null
+++ b/drivers/net/xsc/xsc_ethdev.c
@@ -0,0 +1,89 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2025 Yunsilicon Technology Co., Ltd.
+ */
+
+#include <net/if.h>
+#include <ethdev_pci.h>
+
+#include "xsc_log.h"
+#include "xsc_defs.h"
+#include "xsc_ethdev.h"
+
+static int
+xsc_ethdev_init(struct rte_eth_dev *eth_dev)
+{
+	struct xsc_ethdev_priv *priv = TO_XSC_ETHDEV_PRIV(eth_dev);
+
+	PMD_INIT_FUNC_TRACE();
+
+	priv->eth_dev = eth_dev;
+	priv->pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
+
+	return 0;
+}
+
+static int
+xsc_ethdev_uninit(struct rte_eth_dev *eth_dev)
+{
+	RTE_SET_USED(eth_dev);
+
+	PMD_INIT_FUNC_TRACE();
+
+	return 0;
+}
+
+static int
+xsc_ethdev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
+		     struct rte_pci_device *pci_dev)
+{
+	int ret;
+
+	PMD_INIT_FUNC_TRACE();
+
+	ret = rte_eth_dev_pci_generic_probe(pci_dev,
+					    sizeof(struct xsc_ethdev_priv),
+					    xsc_ethdev_init);
+	if (ret) {
+		PMD_DRV_LOG(ERR, "Failed to probe ethdev: %s", pci_dev->name);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int
+xsc_ethdev_pci_remove(struct rte_pci_device *pci_dev)
+{
+	int ret;
+
+	PMD_INIT_FUNC_TRACE();
+
+	ret = rte_eth_dev_pci_generic_remove(pci_dev, xsc_ethdev_uninit);
+	if (ret) {
+		PMD_DRV_LOG(ERR, "Could not remove ethdev: %s", pci_dev->name);
+		return ret;
+	}
+
+	return 0;
+}
+
+static const struct rte_pci_id xsc_ethdev_pci_id_map[] = {
+	{ RTE_PCI_DEVICE(XSC_PCI_VENDOR_ID, XSC_PCI_DEV_ID_MS) },
+	{ RTE_PCI_DEVICE(XSC_PCI_VENDOR_ID, XSC_PCI_DEV_ID_MSVF) },
+	{ RTE_PCI_DEVICE(XSC_PCI_VENDOR_ID, XSC_PCI_DEV_ID_MVH) },
+	{ RTE_PCI_DEVICE(XSC_PCI_VENDOR_ID, XSC_PCI_DEV_ID_MVHVF) },
+	{ RTE_PCI_DEVICE(XSC_PCI_VENDOR_ID, XSC_PCI_DEV_ID_MVS) },
+	{ RTE_PCI_DEVICE(0, 0) },
+};
+
+static struct rte_pci_driver xsc_ethdev_pci_driver = {
+	.id_table  = xsc_ethdev_pci_id_map,
+	.probe = xsc_ethdev_pci_probe,
+	.remove = xsc_ethdev_pci_remove,
+};
+
+RTE_PMD_REGISTER_PCI(net_xsc, xsc_ethdev_pci_driver);
+RTE_PMD_REGISTER_PCI_TABLE(net_xsc, xsc_ethdev_pci_id_map);
+
+RTE_LOG_REGISTER_SUFFIX(xsc_logtype_init, init, NOTICE);
+RTE_LOG_REGISTER_SUFFIX(xsc_logtype_driver, driver, NOTICE);
diff --git a/drivers/net/xsc/xsc_ethdev.h b/drivers/net/xsc/xsc_ethdev.h
new file mode 100644
index 0000000000..508f5a86de
--- /dev/null
+++ b/drivers/net/xsc/xsc_ethdev.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2025 Yunsilicon Technology Co., Ltd.
+ */
+
+#ifndef _XSC_ETHDEV_H_
+#define _XSC_ETHDEV_H_
+
+struct xsc_ethdev_priv {
+	struct rte_eth_dev *eth_dev;
+	struct rte_pci_device *pci_dev;
+};
+
+#define TO_XSC_ETHDEV_PRIV(dev) ((struct xsc_ethdev_priv *)(dev)->data->dev_private)
+
+#endif /* _XSC_ETHDEV_H_ */
diff --git a/drivers/net/xsc/xsc_log.h b/drivers/net/xsc/xsc_log.h
new file mode 100644
index 0000000000..16de436edb
--- /dev/null
+++ b/drivers/net/xsc/xsc_log.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2025 Yunsilicon Technology Co., Ltd.
+ */
+
+#ifndef _XSC_LOG_H_
+#define _XSC_LOG_H_
+
+#include <rte_log.h>
+
+extern int xsc_logtype_init;
+extern int xsc_logtype_driver;
+
+#define RTE_LOGTYPE_XSC_INIT	xsc_logtype_init
+#define RTE_LOGTYPE_XSC_DRV	xsc_logtype_driver
+
+#define PMD_INIT_LOG(level, ...) \
+	RTE_LOG_LINE_PREFIX(level, XSC_INIT, "%s(): ", __func__, __VA_ARGS__)
+
+#define PMD_INIT_FUNC_TRACE() PMD_INIT_LOG(DEBUG, " >>")
+
+#define PMD_DRV_LOG(level, ...) \
+	RTE_LOG_LINE_PREFIX(level, XSC_DRV, "%s(): ", __func__, __VA_ARGS__)
+
+#endif /* _XSC_LOG_H_ */
-- 
2.25.1