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Message-Id: <20240501230552.53185-2-fujita.tomonori@gmail.com>
Date: Thu, 2 May 2024 08:05:47 +0900
From: FUJITA Tomonori <fujita.tomonori@...il.com>
To: netdev@...r.kernel.org
Cc: andrew@...n.ch,
kuba@...nel.org,
jiri@...nulli.us,
horms@...nel.org
Subject: [PATCH net-next v4 1/6] net: tn40xx: add pci driver for Tehuti Networks TN40xx chips
This just adds the scaffolding for an ethernet driver for Tehuti
Networks TN40xx chips.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@...il.com>
---
MAINTAINERS | 8 +++-
drivers/net/ethernet/tehuti/Kconfig | 12 ++++++
drivers/net/ethernet/tehuti/Makefile | 3 ++
drivers/net/ethernet/tehuti/tn40.c | 58 ++++++++++++++++++++++++++++
drivers/net/ethernet/tehuti/tn40.h | 11 ++++++
5 files changed, 91 insertions(+), 1 deletion(-)
create mode 100644 drivers/net/ethernet/tehuti/tn40.c
create mode 100644 drivers/net/ethernet/tehuti/tn40.h
diff --git a/MAINTAINERS b/MAINTAINERS
index ab89edc6974d..3b8f1b8cc2f4 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -21841,7 +21841,13 @@ TEHUTI ETHERNET DRIVER
M: Andy Gospodarek <andy@...yhouse.net>
L: netdev@...r.kernel.org
S: Supported
-F: drivers/net/ethernet/tehuti/*
+F: drivers/net/ethernet/tehuti/tehuti.*
+
+TEHUTI TN40XX ETHERNET DRIVER
+M: FUJITA Tomonori <fujita.tomonori@...il.com>
+L: netdev@...r.kernel.org
+S: Supported
+F: drivers/net/ethernet/tehuti/tn40*
TELECOM CLOCK DRIVER FOR MCPL0010
M: Mark Gross <markgross@...nel.org>
diff --git a/drivers/net/ethernet/tehuti/Kconfig b/drivers/net/ethernet/tehuti/Kconfig
index 8735633765a1..849e3b4a71c1 100644
--- a/drivers/net/ethernet/tehuti/Kconfig
+++ b/drivers/net/ethernet/tehuti/Kconfig
@@ -23,4 +23,16 @@ config TEHUTI
help
Tehuti Networks 10G Ethernet NIC
+config TEHUTI_TN40
+ tristate "Tehuti Networks TN40xx 10G Ethernet adapters"
+ depends on PCI
+ help
+ This driver supports 10G Ethernet adapters using Tehuti Networks
+ TN40xx chips. Currently, adapters with Applied Micro Circuits
+ Corporation QT2025 are supported; Tehuti Networks TN9310,
+ DLink DXE-810S, ASUS XG-C100F, and Edimax EN-9320.
+
+ To compile this driver as a module, choose M here: the module
+ will be called tn40xx.
+
endif # NET_VENDOR_TEHUTI
diff --git a/drivers/net/ethernet/tehuti/Makefile b/drivers/net/ethernet/tehuti/Makefile
index 13a0ddd62088..1c468d99e476 100644
--- a/drivers/net/ethernet/tehuti/Makefile
+++ b/drivers/net/ethernet/tehuti/Makefile
@@ -4,3 +4,6 @@
#
obj-$(CONFIG_TEHUTI) += tehuti.o
+
+tn40xx-y := tn40.o
+obj-$(CONFIG_TEHUTI_TN40) += tn40xx.o
diff --git a/drivers/net/ethernet/tehuti/tn40.c b/drivers/net/ethernet/tehuti/tn40.c
new file mode 100644
index 000000000000..a7c4fad249c9
--- /dev/null
+++ b/drivers/net/ethernet/tehuti/tn40.c
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* Copyright (c) Tehuti Networks Ltd. */
+
+#include <linux/pci.h>
+
+#include "tn40.h"
+
+static int tn40_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ int ret;
+
+ ret = pci_enable_device(pdev);
+ if (ret)
+ return ret;
+
+ if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) {
+ ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+ if (ret) {
+ dev_err(&pdev->dev, "failed to set DMA mask.\n");
+ goto err_disable_device;
+ }
+ }
+ return 0;
+err_disable_device:
+ pci_disable_device(pdev);
+ return ret;
+}
+
+static void tn40_remove(struct pci_dev *pdev)
+{
+ pci_disable_device(pdev);
+}
+
+static const struct pci_device_id tn40_id_table[] = {
+ { PCI_DEVICE_SUB(PCI_VENDOR_ID_TEHUTI, 0x4022,
+ PCI_VENDOR_ID_TEHUTI, 0x3015) },
+ { PCI_DEVICE_SUB(PCI_VENDOR_ID_TEHUTI, 0x4022,
+ PCI_VENDOR_ID_DLINK, 0x4d00) },
+ { PCI_DEVICE_SUB(PCI_VENDOR_ID_TEHUTI, 0x4022,
+ PCI_VENDOR_ID_ASUSTEK, 0x8709) },
+ { PCI_DEVICE_SUB(PCI_VENDOR_ID_TEHUTI, 0x4022,
+ PCI_VENDOR_ID_EDIMAX, 0x8103) },
+ { }
+};
+
+static struct pci_driver tn40_driver = {
+ .name = TN40_DRV_NAME,
+ .id_table = tn40_id_table,
+ .probe = tn40_probe,
+ .remove = tn40_remove,
+};
+
+module_pci_driver(tn40_driver);
+
+MODULE_DEVICE_TABLE(pci, tn40_id_table);
+MODULE_AUTHOR("Tehuti networks");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Tehuti Network TN40xx Driver");
diff --git a/drivers/net/ethernet/tehuti/tn40.h b/drivers/net/ethernet/tehuti/tn40.h
new file mode 100644
index 000000000000..a5c5b558f56c
--- /dev/null
+++ b/drivers/net/ethernet/tehuti/tn40.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (c) Tehuti Networks Ltd. */
+
+#ifndef _TN40_H_
+#define _TN40_H_
+
+#define TN40_DRV_NAME "tn40xx"
+
+#define PCI_VENDOR_ID_EDIMAX 0x1432
+
+#endif /* _TN40XX_H */
--
2.34.1
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