/* * IXP2400 MSF network device driver for the Radisys ENP2611 * Copyright (C) 2004, 2005 Lennert Buytenhek * 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 #include #include #include #include #include #include #include #include #include #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]; 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 i; if (!machine_is_enp2611()) return -ENODEV; caleb_reset(); pm3386_reset(); for (i = 0; i < 3; 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(3, nds, enp2611_set_port_admin_status)) { for (i = 0; i < 3; 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");