| /* |
| * IXP2400 MSF network device driver for the Radisys ENP2611 |
| * Copyright (C) 2004, 2005 Lennert Buytenhek <buytenh@wantstofly.org> |
| * Dedicated to Marija Kulikova. |
| * |
| * 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. |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/kernel.h> |
| #include <linux/netdevice.h> |
| #include <linux/etherdevice.h> |
| #include <linux/init.h> |
| #include <linux/moduleparam.h> |
| #include <asm/hardware/uengine.h> |
| #include <asm/mach-types.h> |
| #include <asm/io.h> |
| #include "ixpdev.h" |
| #include "caleb.h" |
| #include "ixp2400-msf.h" |
| #include "pm3386.h" |
| |
| /*********************************************************************** |
| * The Radisys ENP2611 is a PCI form factor board with three SFP GBIC |
| * slots, connected via two PMC/Sierra 3386s and an SPI-3 bridge FPGA |
| * to the IXP2400. |
| * |
| * +-------------+ |
| * SFP GBIC #0 ---+ | +---------+ |
| * | PM3386 #0 +-------+ | |
| * SFP GBIC #1 ---+ | | "Caleb" | +---------+ |
| * +-------------+ | | | | |
| * | SPI-3 +---------+ IXP2400 | |
| * +-------------+ | bridge | | | |
| * SFP GBIC #2 ---+ | | FPGA | +---------+ |
| * | PM3386 #1 +-------+ | |
| * | | +---------+ |
| * +-------------+ |
| * ^ ^ ^ |
| * | 1.25Gbaud | 104MHz | 104MHz |
| * | SERDES ea. | SPI-3 ea. | SPI-3 |
| * |
| ***********************************************************************/ |
| static struct ixp2400_msf_parameters enp2611_msf_parameters = |
| { |
| .rx_mode = IXP2400_RX_MODE_UTOPIA_POS | |
| IXP2400_RX_MODE_1x32 | |
| IXP2400_RX_MODE_MPHY | |
| IXP2400_RX_MODE_MPHY_32 | |
| IXP2400_RX_MODE_MPHY_POLLED_STATUS | |
| IXP2400_RX_MODE_MPHY_LEVEL3 | |
| IXP2400_RX_MODE_RBUF_SIZE_64, |
| |
| .rxclk01_multiplier = IXP2400_PLL_MULTIPLIER_16, |
| |
| .rx_poll_ports = 3, |
| |
| .rx_channel_mode = { |
| IXP2400_PORT_RX_MODE_MASTER | |
| IXP2400_PORT_RX_MODE_POS_PHY | |
| IXP2400_PORT_RX_MODE_POS_PHY_L3 | |
| IXP2400_PORT_RX_MODE_ODD_PARITY | |
| IXP2400_PORT_RX_MODE_2_CYCLE_DECODE, |
| |
| IXP2400_PORT_RX_MODE_MASTER | |
| IXP2400_PORT_RX_MODE_POS_PHY | |
| IXP2400_PORT_RX_MODE_POS_PHY_L3 | |
| IXP2400_PORT_RX_MODE_ODD_PARITY | |
| IXP2400_PORT_RX_MODE_2_CYCLE_DECODE, |
| |
| IXP2400_PORT_RX_MODE_MASTER | |
| IXP2400_PORT_RX_MODE_POS_PHY | |
| IXP2400_PORT_RX_MODE_POS_PHY_L3 | |
| IXP2400_PORT_RX_MODE_ODD_PARITY | |
| IXP2400_PORT_RX_MODE_2_CYCLE_DECODE, |
| |
| IXP2400_PORT_RX_MODE_MASTER | |
| IXP2400_PORT_RX_MODE_POS_PHY | |
| IXP2400_PORT_RX_MODE_POS_PHY_L3 | |
| IXP2400_PORT_RX_MODE_ODD_PARITY | |
| IXP2400_PORT_RX_MODE_2_CYCLE_DECODE |
| }, |
| |
| .tx_mode = IXP2400_TX_MODE_UTOPIA_POS | |
| IXP2400_TX_MODE_1x32 | |
| IXP2400_TX_MODE_MPHY | |
| IXP2400_TX_MODE_MPHY_32 | |
| IXP2400_TX_MODE_MPHY_POLLED_STATUS | |
| IXP2400_TX_MODE_MPHY_LEVEL3 | |
| IXP2400_TX_MODE_TBUF_SIZE_64, |
| |
| .txclk01_multiplier = IXP2400_PLL_MULTIPLIER_16, |
| |
| .tx_poll_ports = 3, |
| |
| .tx_channel_mode = { |
| IXP2400_PORT_TX_MODE_MASTER | |
| IXP2400_PORT_TX_MODE_POS_PHY | |
| IXP2400_PORT_TX_MODE_ODD_PARITY | |
| IXP2400_PORT_TX_MODE_2_CYCLE_DECODE, |
| |
| IXP2400_PORT_TX_MODE_MASTER | |
| IXP2400_PORT_TX_MODE_POS_PHY | |
| IXP2400_PORT_TX_MODE_ODD_PARITY | |
| IXP2400_PORT_TX_MODE_2_CYCLE_DECODE, |
| |
| IXP2400_PORT_TX_MODE_MASTER | |
| IXP2400_PORT_TX_MODE_POS_PHY | |
| IXP2400_PORT_TX_MODE_ODD_PARITY | |
| IXP2400_PORT_TX_MODE_2_CYCLE_DECODE, |
| |
| IXP2400_PORT_TX_MODE_MASTER | |
| IXP2400_PORT_TX_MODE_POS_PHY | |
| IXP2400_PORT_TX_MODE_ODD_PARITY | |
| IXP2400_PORT_TX_MODE_2_CYCLE_DECODE |
| } |
| }; |
| |
| struct enp2611_ixpdev_priv |
| { |
| struct ixpdev_priv ixpdev_priv; |
| struct net_device_stats stats; |
| }; |
| |
| static struct net_device *nds[3]; |
| static struct timer_list link_check_timer; |
| |
| static struct net_device_stats *enp2611_get_stats(struct net_device *dev) |
| { |
| struct enp2611_ixpdev_priv *ip = netdev_priv(dev); |
| |
| pm3386_get_stats(ip->ixpdev_priv.channel, &(ip->stats)); |
| |
| return &(ip->stats); |
| } |
| |
| /* @@@ Poll the SFP moddef0 line too. */ |
| /* @@@ Try to use the pm3386 DOOL interrupt as well. */ |
| static void enp2611_check_link_status(unsigned long __dummy) |
| { |
| int i; |
| |
| for (i = 0; i < 3; i++) { |
| struct net_device *dev; |
| int status; |
| |
| dev = nds[i]; |
| if (dev == NULL) |
| continue; |
| |
| status = pm3386_is_link_up(i); |
| if (status && !netif_carrier_ok(dev)) { |
| /* @@@ Should report autonegotiation status. */ |
| printk(KERN_INFO "%s: NIC Link is Up\n", dev->name); |
| |
| pm3386_enable_tx(i); |
| caleb_enable_tx(i); |
| netif_carrier_on(dev); |
| } else if (!status && netif_carrier_ok(dev)) { |
| printk(KERN_INFO "%s: NIC Link is Down\n", dev->name); |
| |
| netif_carrier_off(dev); |
| caleb_disable_tx(i); |
| pm3386_disable_tx(i); |
| } |
| } |
| |
| link_check_timer.expires = jiffies + HZ / 10; |
| add_timer(&link_check_timer); |
| } |
| |
| static void enp2611_set_port_admin_status(int port, int up) |
| { |
| if (up) { |
| caleb_enable_rx(port); |
| |
| pm3386_set_carrier(port, 1); |
| pm3386_enable_rx(port); |
| } else { |
| caleb_disable_tx(port); |
| pm3386_disable_tx(port); |
| /* @@@ Flush out pending packets. */ |
| pm3386_set_carrier(port, 0); |
| |
| pm3386_disable_rx(port); |
| caleb_disable_rx(port); |
| } |
| } |
| |
| static int __init enp2611_init_module(void) |
| { |
| int ports; |
| int i; |
| |
| if (!machine_is_enp2611()) |
| return -ENODEV; |
| |
| caleb_reset(); |
| pm3386_reset(); |
| |
| ports = pm3386_port_count(); |
| for (i = 0; i < ports; i++) { |
| nds[i] = ixpdev_alloc(i, sizeof(struct enp2611_ixpdev_priv)); |
| if (nds[i] == NULL) { |
| while (--i >= 0) |
| free_netdev(nds[i]); |
| return -ENOMEM; |
| } |
| |
| SET_MODULE_OWNER(nds[i]); |
| nds[i]->get_stats = enp2611_get_stats; |
| pm3386_init_port(i); |
| pm3386_get_mac(i, nds[i]->dev_addr); |
| } |
| |
| ixp2400_msf_init(&enp2611_msf_parameters); |
| |
| if (ixpdev_init(ports, nds, enp2611_set_port_admin_status)) { |
| for (i = 0; i < ports; i++) |
| if (nds[i]) |
| free_netdev(nds[i]); |
| return -EINVAL; |
| } |
| |
| init_timer(&link_check_timer); |
| link_check_timer.function = enp2611_check_link_status; |
| link_check_timer.expires = jiffies; |
| add_timer(&link_check_timer); |
| |
| return 0; |
| } |
| |
| static void __exit enp2611_cleanup_module(void) |
| { |
| int i; |
| |
| del_timer_sync(&link_check_timer); |
| |
| ixpdev_deinit(); |
| for (i = 0; i < 3; i++) |
| free_netdev(nds[i]); |
| } |
| |
| module_init(enp2611_init_module); |
| module_exit(enp2611_cleanup_module); |
| MODULE_LICENSE("GPL"); |