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Date: Mon, 25 Apr 2011 17:23:41 -0400
From: dykmanj@...ux.vnet.ibm.com
To: netdev@...r.kernel.org
Cc: Jim Dykman <dykmanj@...ux.vnet.ibm.com>,
Piyush Chaudhary <piyushc@...ux.vnet.ibm.com>,
Fu-Chung Chang <fcchang@...ux.vnet.ibm.com>,
" William S. Cadden" <wscadden@...ux.vnet.ibm.com>,
" Wen C. Chen" <winstonc@...ux.vnet.ibm.com>,
Scot Sakolish <sakolish@...ux.vnet.ibm.com>,
Jian Xiao <jian@...ux.vnet.ibm.com>,
" Carol L. Soto" <clsoto@...ux.vnet.ibm.com>,
" Sarah J. Sheppard" <sjsheppa@...ux.vnet.ibm.com>
Subject: [PATCH v4 01/27] HFI: skeleton driver
From: Jim Dykman <dykmanj@...ux.vnet.ibm.com>
Device driver Makefile & Kconfig plumbing plus simple mod_init and mod_exit
Signed-off-by: Piyush Chaudhary <piyushc@...ux.vnet.ibm.com>
Signed-off-by: Jim Dykman <dykmanj@...ux.vnet.ibm.com>
Signed-off-by: Fu-Chung Chang <fcchang@...ux.vnet.ibm.com>
Signed-off-by: William S. Cadden <wscadden@...ux.vnet.ibm.com>
Signed-off-by: Wen C. Chen <winstonc@...ux.vnet.ibm.com>
Signed-off-by: Scot Sakolish <sakolish@...ux.vnet.ibm.com>
Signed-off-by: Jian Xiao <jian@...ux.vnet.ibm.com>
Signed-off-by: Carol L. Soto <clsoto@...ux.vnet.ibm.com>
Signed-off-by: Sarah J. Sheppard <sjsheppa@...ux.vnet.ibm.com>
---
drivers/net/Kconfig | 2 +
drivers/net/Makefile | 2 +
drivers/net/hfi/Makefile | 1 +
drivers/net/hfi/core/Kconfig | 8 ++
drivers/net/hfi/core/Makefile | 5 ++
drivers/net/hfi/core/hfidd_init.c | 141 ++++++++++++++++++++++++++++++++++++
include/linux/Kbuild | 1 +
include/linux/hfi/Kbuild | 1 +
include/linux/hfi/hfidd_client.h | 40 ++++++++++
include/linux/hfi/hfidd_internal.h | 53 ++++++++++++++
10 files changed, 254 insertions(+), 0 deletions(-)
create mode 100644 drivers/net/hfi/Makefile
create mode 100644 drivers/net/hfi/core/Kconfig
create mode 100644 drivers/net/hfi/core/Makefile
create mode 100644 drivers/net/hfi/core/hfidd_init.c
create mode 100644 include/linux/hfi/Kbuild
create mode 100644 include/linux/hfi/hfidd_client.h
create mode 100644 include/linux/hfi/hfidd_internal.h
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index dc280bc..1abbfd9 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -3436,4 +3436,6 @@ config VMXNET3
To compile this driver as a module, choose M here: the
module will be called vmxnet3.
+source "drivers/net/hfi/core/Kconfig"
+
endif # NETDEVICES
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 01b604a..e9ea418 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -304,3 +304,5 @@ obj-$(CONFIG_CAIF) += caif/
obj-$(CONFIG_OCTEON_MGMT_ETHERNET) += octeon/
obj-$(CONFIG_PCH_GBE) += pch_gbe/
obj-$(CONFIG_TILE_NET) += tile/
+
+obj-$(CONFIG_HFI) += hfi/
diff --git a/drivers/net/hfi/Makefile b/drivers/net/hfi/Makefile
new file mode 100644
index 0000000..0440cbe
--- /dev/null
+++ b/drivers/net/hfi/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_HFI) += core/
diff --git a/drivers/net/hfi/core/Kconfig b/drivers/net/hfi/core/Kconfig
new file mode 100644
index 0000000..3cd637c
--- /dev/null
+++ b/drivers/net/hfi/core/Kconfig
@@ -0,0 +1,8 @@
+config HFI
+ tristate "HFI driver support"
+ depends on IBMEBUS
+ ---help---
+ This driver supports the IBM System p HFI adapter.
+
+ To compile the driver as a module, choose M here. The module
+ will be called hfi_core.
diff --git a/drivers/net/hfi/core/Makefile b/drivers/net/hfi/core/Makefile
new file mode 100644
index 0000000..80790c6
--- /dev/null
+++ b/drivers/net/hfi/core/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the HFI device driver for IBM eServer System p
+#
+hfi_core-objs:= hfidd_init.o
+obj-$(CONFIG_HFI) += hfi_core.o
diff --git a/drivers/net/hfi/core/hfidd_init.c b/drivers/net/hfi/core/hfidd_init.c
new file mode 100644
index 0000000..9498faf
--- /dev/null
+++ b/drivers/net/hfi/core/hfidd_init.c
@@ -0,0 +1,141 @@
+/*
+ * hfidd_init.c
+ *
+ * HFI device driver for IBM System p
+ *
+ * Authors:
+ * Fu-Chung Chang <fcchang@...ux.vnet.ibm.com>
+ * William S. Cadden <wscadden@...ux.vnet.ibm.com>
+ * Wen C. Chen <winstonc@...ux.vnet.ibm.com>
+ * Scot Sakolish <sakolish@...ux.vnet.ibm.com>
+ * Jian Xiao <jian@...ux.vnet.ibm.com>
+ * Carol L. Soto <clsoto@...ux.vnet.ibm.com>
+ * Sarah J. Sheppard <sjsheppa@...ux.vnet.ibm.com>
+ *
+ * (C) Copyright IBM Corp. 2010
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/device.h>
+
+#include <linux/hfi/hfidd_internal.h>
+
+MODULE_VERSION("1.0");
+MODULE_DESCRIPTION("Device Driver for IBM eServer HFI for IBM System p");
+MODULE_AUTHOR("James Dykman <dykmanj@...ux.vnet.ibm.com> and "
+ "Piyush Chaudhary <piyushc@...ux.vnet.ibm.com>");
+MODULE_LICENSE("GPL v2");
+
+struct hfidd_global hfidd_global;
+EXPORT_SYMBOL_GPL(hfidd_global);
+
+static dev_t hfidd_dev;
+
+#define MAX_HFI_DEVS (MAX_HFIS + 1)
+
+/* Function to get our internal traces */
+static ssize_t hfidd_read(struct file *filep, char *buf, size_t count,
+ loff_t *pos)
+{
+ return 0;
+}
+
+/* Entry point for user space to do driver requests. */
+static ssize_t hfidd_cmd_write(struct file *filep, const char __user *buf,
+ size_t count, loff_t *pos)
+{
+ return 0;
+}
+
+static const struct file_operations hfidd_fops = {
+ .owner = THIS_MODULE,
+ .read = hfidd_read,
+ .write = hfidd_cmd_write,
+};
+
+/* Destroy the HFI class */
+static inline void hfidd_destroy_class(void)
+{
+ class_destroy(hfidd_global.class);
+ cdev_del(&hfidd_global.cdev);
+ unregister_chrdev_region(hfidd_dev, MAX_HFI_DEVS);
+}
+
+/* Create the HFI class */
+static int hfidd_create_class(void)
+{
+ int rc;
+
+ rc = alloc_chrdev_region(&hfidd_dev, 0, MAX_HFI_DEVS, HFIDD_DEV_NAME);
+ if (rc) {
+ printk(KERN_ERR "%s: hfidd_create_class: alloc_chrdev_region"
+ " failed rc 0x%x\n", HFIDD_DEV_NAME, rc);
+ return rc;
+ }
+
+ cdev_init(&hfidd_global.cdev, &hfidd_fops);
+ hfidd_global.cdev.owner = THIS_MODULE;
+ kobject_set_name(&hfidd_global.cdev.kobj, HFIDD_DEV_NAME);
+ rc = cdev_add(&hfidd_global.cdev, hfidd_dev, MAX_HFI_DEVS);
+ if (rc) {
+ printk(KERN_ERR "%s: hfidd_create_class cdev_add fail"
+ " rc = %d\n", HFIDD_DEV_NAME, rc);
+ goto hfidd_create_class_error1;
+ }
+
+ hfidd_global.class = class_create(THIS_MODULE, HFIDD_CLASS_NAME);
+ if (IS_ERR(hfidd_global.class)) {
+ rc = PTR_ERR(hfidd_global.class);
+ printk(KERN_ERR "%s: hfidd_create_class class_create fail rc = %d\n",
+ HFIDD_DEV_NAME, rc);
+ goto hfidd_create_class_error2;
+ }
+
+ return rc;
+
+hfidd_create_class_error2:
+ cdev_del(&hfidd_global.cdev);
+hfidd_create_class_error1:
+ unregister_chrdev_region(hfidd_dev, MAX_HFI_DEVS);
+
+ return rc;
+}
+
+static int __init hfidd_mod_init(void)
+{
+ int rc = 0;
+
+ rc = hfidd_create_class();
+ if (rc < 0) {
+ printk(KERN_ERR "%s: hfidd_mod_init: hfidd_create_class failed"
+ " rc=%d\n", HFIDD_DEV_NAME, rc);
+ return rc;
+ }
+
+ printk(KERN_INFO "IBM hfi device driver loaded sucessfully\n");
+ return 0;
+}
+
+static void __exit hfidd_mod_exit(void)
+{
+ hfidd_destroy_class();
+}
+
+module_init(hfidd_mod_init);
+module_exit(hfidd_mod_exit);
diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index 75cf611..df925b4 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -3,6 +3,7 @@ header-y += can/
header-y += caif/
header-y += dvb/
header-y += hdlc/
+header-y += hfi/
header-y += isdn/
header-y += nfsd/
header-y += raid/
diff --git a/include/linux/hfi/Kbuild b/include/linux/hfi/Kbuild
new file mode 100644
index 0000000..3a742ce
--- /dev/null
+++ b/include/linux/hfi/Kbuild
@@ -0,0 +1 @@
+header-y += hfidd_client.h
diff --git a/include/linux/hfi/hfidd_client.h b/include/linux/hfi/hfidd_client.h
new file mode 100644
index 0000000..b738f4b
--- /dev/null
+++ b/include/linux/hfi/hfidd_client.h
@@ -0,0 +1,40 @@
+/*
+ * hfidd_client.h
+ *
+ * HFI device driver for IBM System p
+ *
+ * Authors:
+ * Fu-Chung Chang <fcchang@...ux.vnet.ibm.com>
+ * William S. Cadden <wscadden@...ux.vnet.ibm.com>
+ * Wen C. Chen <winstonc@...ux.vnet.ibm.com>
+ * Scot Sakolish <sakolish@...ux.vnet.ibm.com>
+ * Jian Xiao <jian@...ux.vnet.ibm.com>
+ * Carol L. Soto <clsoto@...ux.vnet.ibm.com>
+ * Sarah J. Sheppard <sjsheppa@...ux.vnet.ibm.com>
+ *
+ * (C) Copyright IBM Corp. 2010
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#ifndef _HFIDD_CLIENT_H_
+#define _HFIDD_CLIENT_H_
+
+#define MAX_TORRENTS 1
+#define MAX_HFI_PER_TORRENT 2
+#define MAX_HFIS (MAX_TORRENTS * MAX_HFI_PER_TORRENT)
+
+#endif /* _HFIDD_CLIENT_H_ */
diff --git a/include/linux/hfi/hfidd_internal.h b/include/linux/hfi/hfidd_internal.h
new file mode 100644
index 0000000..f5de1bb
--- /dev/null
+++ b/include/linux/hfi/hfidd_internal.h
@@ -0,0 +1,53 @@
+/*
+ * hfidd_internal.h
+ *
+ * HFI device driver for IBM System p
+ *
+ * Authors:
+ * Fu-Chung Chang <fcchang@...ux.vnet.ibm.com>
+ * William S. Cadden <wscadden@...ux.vnet.ibm.com>
+ * Wen C. Chen <winstonc@...ux.vnet.ibm.com>
+ * Scot Sakolish <sakolish@...ux.vnet.ibm.com>
+ * Jian Xiao <jian@...ux.vnet.ibm.com>
+ * Carol L. Soto <clsoto@...ux.vnet.ibm.com>
+ * Sarah J. Sheppard <sjsheppa@...ux.vnet.ibm.com>
+ *
+ * (C) Copyright IBM Corp. 2010
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#ifndef _HFI_INTERNAL_H_
+#define _HFI_INTERNAL_H_
+
+#include <linux/fs.h>
+#include <linux/kobject.h>
+#include <linux/cdev.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+
+#include <linux/hfi/hfidd_client.h>
+
+#define HFIDD_DEV_NAME "hfi"
+#define HFIDD_CLASS_NAME "hfi"
+
+/* DD global */
+struct hfidd_global {
+ struct cdev cdev;
+ struct class *class;
+};
+
+#endif
--
1.7.3.5
--
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