| /******************************************************************************* |
| Copyright (C) Marvell International Ltd. and its affiliates |
| |
| This software file (the "File") is owned and distributed by Marvell |
| International Ltd. and/or its affiliates ("Marvell") under the following |
| alternative licensing terms. Once you have made an election to distribute the |
| File under one of the following license alternatives, please (i) delete this |
| introductory statement regarding license alternatives, (ii) delete the two |
| license alternatives that you have not elected to use and (iii) preserve the |
| Marvell copyright notice above. |
| |
| |
| ******************************************************************************** |
| Marvell GPL License Option |
| |
| If you received this File from Marvell, you may opt to use, redistribute and/or |
| modify this File in accordance with the terms and conditions of the General |
| Public License Version 2, June 1991 (the "GPL License"), a copy of which is |
| available along with the File in the license.txt file or by writing to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 or |
| on the worldwide web at http://www.gnu.org/licenses/gpl.txt. |
| |
| THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE IMPLIED |
| WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY |
| DISCLAIMED. The GPL License provides additional details about this warranty |
| disclaimer. |
| *******************************************************************************/ |
| #include <linux/module.h> |
| #include <linux/kernel.h> |
| #include <linux/types.h> |
| #include <linux/capability.h> |
| #include <linux/kernel.h> |
| #include <linux/platform_device.h> |
| #include <linux/netdevice.h> |
| |
| #include "mvTypes.h" |
| #include "mv_switch.h" |
| #include "../mv_neta/net_dev/mv_netdev.h" |
| |
| static ssize_t mv_switch_help(char *buf) |
| { |
| int off = 0; |
| |
| off += sprintf(buf+off, "cat help - show this help\n"); |
| off += sprintf(buf+off, "cat stats - show statistics for switch all ports info\n"); |
| off += sprintf(buf+off, "cat status - show switch status\n"); |
| #ifdef CONFIG_MV_ETH_SWITCH |
| off += sprintf(buf+off, "echo <eth_name> > netdev_sts - print network device status\n"); |
| off += sprintf(buf+off, "echo <eth_name> p > port_add - map switch port to a network device\n"); |
| off += sprintf(buf+off, "echo <eth_name> p > port_del - unmap switch port from a network device\n"); |
| #endif /* CONFIG_MV_ETH_SWITCH */ |
| off += sprintf(buf+off, "echo p r t > reg_r - read switch register. t: 1-phy, 2-port, 3-global, 4-global2, 5-smi\n"); |
| off += sprintf(buf+off, "echo p r t v > reg_w - write switch register. t: 1-phy, 2-port, 3-global, 4-global2, 5-smi\n"); |
| return off; |
| } |
| |
| static ssize_t mv_switch_show(struct device *dev, struct device_attribute *attr, char *buf) |
| { |
| const char *name = attr->attr.name; |
| int off = 0; |
| |
| if (!capable(CAP_NET_ADMIN)) |
| return -EPERM; |
| |
| if (!strcmp(name, "stats")) |
| mv_switch_stats_print(); |
| else if (!strcmp(name, "status")) |
| mv_switch_status_print(); |
| else |
| off = mv_switch_help(buf); |
| |
| return off; |
| } |
| |
| static ssize_t mv_switch_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) |
| { |
| const char *name = attr->attr.name; |
| unsigned long flags; |
| int err, port, reg, type; |
| unsigned int v; |
| MV_U16 val; |
| |
| if (!capable(CAP_NET_ADMIN)) |
| return -EPERM; |
| |
| /* Read arguments */ |
| err = port = reg = type = val = 0; |
| sscanf(buf, "%d %d %d %x", &port, ®, &type, &v); |
| |
| local_irq_save(flags); |
| if (!strcmp(name, "reg_r")) { |
| err = mv_switch_reg_read(port, reg, type, &val); |
| } else if (!strcmp(name, "reg_w")) { |
| val = (MV_U16)v; |
| err = mv_switch_reg_write(port, reg, type, v); |
| } |
| printk(KERN_ERR "switch register access: type=%d, port=%d, reg=%d", type, port, reg); |
| |
| if (err) |
| printk(KERN_ERR " - FAILED, err=%d\n", err); |
| else |
| printk(KERN_ERR " - SUCCESS, val=0x%04x\n", val); |
| |
| local_irq_restore(flags); |
| |
| return err ? -EINVAL : len; |
| } |
| |
| #ifdef CONFIG_MV_ETH_SWITCH |
| static ssize_t mv_switch_netdev_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) |
| { |
| const char *name = attr->attr.name; |
| int err = 0, port = 0; |
| char dev_name[30]; |
| struct net_device *netdev; |
| |
| if (!capable(CAP_NET_ADMIN)) |
| return -EPERM; |
| |
| /* Read arguments */ |
| sscanf(buf, "%s %d", dev_name, &port); |
| netdev = dev_get_by_name(&init_net, dev_name); |
| if (netdev == NULL) { |
| err = 1; |
| } else { |
| if (!strcmp(name, "netdev_sts")) |
| mv_eth_netdev_print(netdev); |
| else if (!strcmp(name, "port_add")) |
| err = mv_eth_switch_port_add(netdev, port); |
| else if (!strcmp(name, "port_del")) |
| err = mv_eth_switch_port_del(netdev, port); |
| |
| dev_put(netdev); |
| } |
| |
| if (err) |
| printk(KERN_ERR " - FAILED, err=%d\n", err); |
| else |
| printk(KERN_ERR " - SUCCESS\n"); |
| |
| return err ? -EINVAL : len; |
| } |
| #endif /* CONFIG_MV_ETH_SWITCH */ |
| |
| static DEVICE_ATTR(reg_r, S_IWUSR, mv_switch_show, mv_switch_store); |
| static DEVICE_ATTR(reg_w, S_IWUSR, mv_switch_show, mv_switch_store); |
| static DEVICE_ATTR(status, S_IRUSR, mv_switch_show, mv_switch_store); |
| static DEVICE_ATTR(stats, S_IRUSR, mv_switch_show, mv_switch_store); |
| static DEVICE_ATTR(help, S_IRUSR, mv_switch_show, mv_switch_store); |
| #ifdef CONFIG_MV_ETH_SWITCH |
| static DEVICE_ATTR(netdev_sts, S_IWUSR, mv_switch_show, mv_switch_netdev_store); |
| static DEVICE_ATTR(port_add, S_IWUSR, mv_switch_show, mv_switch_netdev_store); |
| static DEVICE_ATTR(port_del, S_IWUSR, mv_switch_show, mv_switch_netdev_store); |
| #endif /* CONFIG_MV_ETH_SWITCH */ |
| |
| static struct attribute *mv_switch_attrs[] = { |
| &dev_attr_reg_r.attr, |
| &dev_attr_reg_w.attr, |
| &dev_attr_status.attr, |
| &dev_attr_stats.attr, |
| &dev_attr_help.attr, |
| #ifdef CONFIG_MV_ETH_SWITCH |
| &dev_attr_netdev_sts.attr, |
| &dev_attr_port_add.attr, |
| &dev_attr_port_del.attr, |
| #endif /* CONFIG_MV_ETH_SWITCH */ |
| NULL |
| }; |
| |
| static struct attribute_group mv_switch_group = { |
| .name = "switch", |
| .attrs = mv_switch_attrs, |
| }; |
| |
| int __devinit mv_switch_sysfs_init(void) |
| { |
| int err; |
| struct device *pd; |
| |
| pd = bus_find_device_by_name(&platform_bus_type, NULL, "neta"); |
| if (!pd) { |
| platform_device_register_simple("neta", -1, NULL, 0); |
| pd = bus_find_device_by_name(&platform_bus_type, NULL, "neta"); |
| } |
| |
| if (!pd) { |
| printk(KERN_ERR "%s: cannot find neta device\n", __func__); |
| pd = &platform_bus; |
| } |
| |
| err = sysfs_create_group(&pd->kobj, &mv_switch_group); |
| if (err) { |
| printk(KERN_INFO "sysfs group failed %d\n", err); |
| goto out; |
| } |
| out: |
| return err; |
| } |
| |
| module_init(mv_switch_sysfs_init); |
| |
| MODULE_AUTHOR("Dima Epshtein"); |
| MODULE_DESCRIPTION("sysfs for Marvell switch"); |
| MODULE_LICENSE("GPL"); |
| |