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From: Wenbo Cao <caowenbo@mucse.com>
To: thomas@monjalon.net,
Wenbo Cao <caowenbo@mucse.com>
Cc: stephen@networkplumber.org, dev@dpdk.org, ferruh.yigit@amd.com,
andrew.rybchenko@oktetlabs.ru, yaojun@mucse.com
Subject: [PATCH v7 02/28] net/rnp: add ethdev probe and remove
Date: Sat, 8 Feb 2025 10:43:39 +0800
Message-Id: <1738982645-34550-3-git-send-email-caowenbo@mucse.com>
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Add basic PCIe ethdev probe and remove.
Signed-off-by: Wenbo Cao <caowenbo@mucse.com>
Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>
---
drivers/net/rnp/meson.build | 11 +++++++
drivers/net/rnp/rnp.h | 13 ++++++++
drivers/net/rnp/rnp_ethdev.c | 77 ++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 101 insertions(+)
create mode 100644 drivers/net/rnp/meson.build
create mode 100644 drivers/net/rnp/rnp.h
create mode 100644 drivers/net/rnp/rnp_ethdev.c
diff --git a/drivers/net/rnp/meson.build b/drivers/net/rnp/meson.build
new file mode 100644
index 0000000..4f37c6b
--- /dev/null
+++ b/drivers/net/rnp/meson.build
@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(C) 2023 Mucse IC Design Ltd.
+#
+if not is_linux
+ build = false
+ reason = 'only supported on Linux'
+endif
+
+sources = files(
+ 'rnp_ethdev.c',
+)
diff --git a/drivers/net/rnp/rnp.h b/drivers/net/rnp/rnp.h
new file mode 100644
index 0000000..6cd717a
--- /dev/null
+++ b/drivers/net/rnp/rnp.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2023 Mucse IC Design Ltd.
+ */
+#ifndef __RNP_H__
+#define __RNP_H__
+
+#define PCI_VENDOR_ID_MUCSE (0x8848)
+#define RNP_DEV_ID_N10G (0x1000)
+
+struct rnp_eth_port {
+};
+
+#endif /* __RNP_H__ */
diff --git a/drivers/net/rnp/rnp_ethdev.c b/drivers/net/rnp/rnp_ethdev.c
new file mode 100644
index 0000000..2f34f88
--- /dev/null
+++ b/drivers/net/rnp/rnp_ethdev.c
@@ -0,0 +1,77 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2023 Mucse IC Design Ltd.
+ */
+
+#include <ethdev_pci.h>
+#include <rte_io.h>
+#include <rte_malloc.h>
+
+#include "rnp.h"
+
+static int
+rnp_eth_dev_init(struct rte_eth_dev *eth_dev)
+{
+ RTE_SET_USED(eth_dev);
+
+ return -ENODEV;
+}
+
+static int
+rnp_eth_dev_uninit(struct rte_eth_dev *eth_dev)
+{
+ RTE_SET_USED(eth_dev);
+
+ return -ENODEV;
+}
+
+static int
+rnp_pci_remove(struct rte_pci_device *pci_dev)
+{
+ struct rte_eth_dev *eth_dev;
+ int rc;
+
+ eth_dev = rte_eth_dev_allocated(pci_dev->device.name);
+
+ if (eth_dev) {
+ /* Cleanup eth dev */
+ rc = rte_eth_dev_pci_generic_remove(pci_dev,
+ rnp_eth_dev_uninit);
+ if (rc)
+ return rc;
+ }
+
+ return 0;
+}
+
+static int
+rnp_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
+{
+ int rc;
+
+ RTE_SET_USED(pci_drv);
+
+ rc = rte_eth_dev_pci_generic_probe(pci_dev, sizeof(struct rnp_eth_port),
+ rnp_eth_dev_init);
+
+ return rc;
+}
+
+static const struct rte_pci_id pci_id_rnp_map[] = {
+ {
+ RTE_PCI_DEVICE(PCI_VENDOR_ID_MUCSE, RNP_DEV_ID_N10G)
+ },
+ {
+ .vendor_id = 0,
+ },
+};
+
+static struct rte_pci_driver rte_rnp_pmd = {
+ .id_table = pci_id_rnp_map,
+ .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
+ .probe = rnp_pci_probe,
+ .remove = rnp_pci_remove,
+};
+
+RTE_PMD_REGISTER_PCI(net_rnp, rte_rnp_pmd);
+RTE_PMD_REGISTER_PCI_TABLE(net_rnp, pci_id_rnp_map);
+RTE_PMD_REGISTER_KMOD_DEP(net_rnp, "igb_uio | uio_pci_generic | vfio-pci");
--
1.8.3.1