mirror of https://gitee.com/openkylin/linux.git
1404 lines
38 KiB
C
1404 lines
38 KiB
C
/*****************************************************************************
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* *
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* File: cxgb2.c *
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* $Revision: 1.25 $ *
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* $Date: 2005/06/22 00:43:25 $ *
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* Description: *
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* Chelsio 10Gb Ethernet Driver. *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License, version 2, as *
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* published by the Free Software Foundation. *
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* *
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* You should have received a copy of the GNU General Public License along *
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* with this program; if not, write to the Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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* *
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED *
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* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF *
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. *
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* *
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* http://www.chelsio.com *
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* *
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* Copyright (c) 2003 - 2005 Chelsio Communications, Inc. *
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* All rights reserved. *
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* *
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* Maintainers: maintainers@chelsio.com *
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* *
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* Authors: Dimitrios Michailidis <dm@chelsio.com> *
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* Tina Yang <tainay@chelsio.com> *
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* Felix Marti <felix@chelsio.com> *
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* Scott Bardone <sbardone@chelsio.com> *
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* Kurt Ottaway <kottaway@chelsio.com> *
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* Frank DiMambro <frank@chelsio.com> *
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* *
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* History: *
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* *
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****************************************************************************/
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#include "common.h"
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/if_vlan.h>
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#include <linux/mii.h>
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#include <linux/sockios.h>
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#include <linux/dma-mapping.h>
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#include <asm/uaccess.h>
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#include "cpl5_cmd.h"
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#include "regs.h"
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#include "gmac.h"
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#include "cphy.h"
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#include "sge.h"
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#include "tp.h"
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#include "espi.h"
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#include "elmer0.h"
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#include <linux/workqueue.h>
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static inline void schedule_mac_stats_update(struct adapter *ap, int secs)
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{
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schedule_delayed_work(&ap->stats_update_task, secs * HZ);
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}
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static inline void cancel_mac_stats_update(struct adapter *ap)
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{
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cancel_delayed_work(&ap->stats_update_task);
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}
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#define MAX_CMDQ_ENTRIES 16384
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#define MAX_CMDQ1_ENTRIES 1024
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#define MAX_RX_BUFFERS 16384
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#define MAX_RX_JUMBO_BUFFERS 16384
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#define MAX_TX_BUFFERS_HIGH 16384U
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#define MAX_TX_BUFFERS_LOW 1536U
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#define MAX_TX_BUFFERS 1460U
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#define MIN_FL_ENTRIES 32
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#define DFLT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | \
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NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP |\
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NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR)
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/*
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* The EEPROM is actually bigger but only the first few bytes are used so we
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* only report those.
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*/
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#define EEPROM_SIZE 32
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MODULE_DESCRIPTION(DRV_DESCRIPTION);
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MODULE_AUTHOR("Chelsio Communications");
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MODULE_LICENSE("GPL");
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static int dflt_msg_enable = DFLT_MSG_ENABLE;
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module_param(dflt_msg_enable, int, 0);
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MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T1 default message enable bitmap");
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#define HCLOCK 0x0
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#define LCLOCK 0x1
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/* T1 cards powersave mode */
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static int t1_clock(struct adapter *adapter, int mode);
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static int t1powersave = 1; /* HW default is powersave mode. */
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module_param(t1powersave, int, 0);
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MODULE_PARM_DESC(t1powersave, "Enable/Disable T1 powersaving mode");
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static int disable_msi = 0;
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module_param(disable_msi, int, 0);
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MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)");
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static const char pci_speed[][4] = {
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"33", "66", "100", "133"
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};
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/*
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* Setup MAC to receive the types of packets we want.
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*/
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static void t1_set_rxmode(struct net_device *dev)
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{
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struct adapter *adapter = dev->ml_priv;
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struct cmac *mac = adapter->port[dev->if_port].mac;
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struct t1_rx_mode rm;
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rm.dev = dev;
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rm.idx = 0;
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rm.list = dev->mc_list;
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mac->ops->set_rx_mode(mac, &rm);
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}
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static void link_report(struct port_info *p)
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{
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if (!netif_carrier_ok(p->dev))
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printk(KERN_INFO "%s: link down\n", p->dev->name);
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else {
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const char *s = "10Mbps";
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switch (p->link_config.speed) {
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case SPEED_10000: s = "10Gbps"; break;
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case SPEED_1000: s = "1000Mbps"; break;
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case SPEED_100: s = "100Mbps"; break;
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}
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printk(KERN_INFO "%s: link up, %s, %s-duplex\n",
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p->dev->name, s,
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p->link_config.duplex == DUPLEX_FULL ? "full" : "half");
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}
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}
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void t1_link_negotiated(struct adapter *adapter, int port_id, int link_stat,
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int speed, int duplex, int pause)
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{
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struct port_info *p = &adapter->port[port_id];
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if (link_stat != netif_carrier_ok(p->dev)) {
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if (link_stat)
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netif_carrier_on(p->dev);
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else
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netif_carrier_off(p->dev);
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link_report(p);
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/* multi-ports: inform toe */
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if ((speed > 0) && (adapter->params.nports > 1)) {
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unsigned int sched_speed = 10;
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switch (speed) {
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case SPEED_1000:
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sched_speed = 1000;
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break;
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case SPEED_100:
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sched_speed = 100;
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break;
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case SPEED_10:
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sched_speed = 10;
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break;
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}
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t1_sched_update_parms(adapter->sge, port_id, 0, sched_speed);
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}
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}
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}
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static void link_start(struct port_info *p)
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{
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struct cmac *mac = p->mac;
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mac->ops->reset(mac);
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if (mac->ops->macaddress_set)
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mac->ops->macaddress_set(mac, p->dev->dev_addr);
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t1_set_rxmode(p->dev);
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t1_link_start(p->phy, mac, &p->link_config);
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mac->ops->enable(mac, MAC_DIRECTION_RX | MAC_DIRECTION_TX);
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}
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static void enable_hw_csum(struct adapter *adapter)
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{
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if (adapter->flags & TSO_CAPABLE)
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t1_tp_set_ip_checksum_offload(adapter->tp, 1); /* for TSO only */
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if (adapter->flags & UDP_CSUM_CAPABLE)
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t1_tp_set_udp_checksum_offload(adapter->tp, 1);
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t1_tp_set_tcp_checksum_offload(adapter->tp, 1);
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}
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/*
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* Things to do upon first use of a card.
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* This must run with the rtnl lock held.
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*/
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static int cxgb_up(struct adapter *adapter)
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{
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int err = 0;
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if (!(adapter->flags & FULL_INIT_DONE)) {
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err = t1_init_hw_modules(adapter);
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if (err)
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goto out_err;
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enable_hw_csum(adapter);
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adapter->flags |= FULL_INIT_DONE;
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}
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t1_interrupts_clear(adapter);
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adapter->params.has_msi = !disable_msi && !pci_enable_msi(adapter->pdev);
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err = request_irq(adapter->pdev->irq, t1_interrupt,
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adapter->params.has_msi ? 0 : IRQF_SHARED,
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adapter->name, adapter);
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if (err) {
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if (adapter->params.has_msi)
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pci_disable_msi(adapter->pdev);
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goto out_err;
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}
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t1_sge_start(adapter->sge);
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t1_interrupts_enable(adapter);
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out_err:
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return err;
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}
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/*
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* Release resources when all the ports have been stopped.
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*/
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static void cxgb_down(struct adapter *adapter)
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{
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t1_sge_stop(adapter->sge);
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t1_interrupts_disable(adapter);
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free_irq(adapter->pdev->irq, adapter);
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if (adapter->params.has_msi)
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pci_disable_msi(adapter->pdev);
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}
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static int cxgb_open(struct net_device *dev)
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{
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int err;
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struct adapter *adapter = dev->ml_priv;
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int other_ports = adapter->open_device_map & PORT_MASK;
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napi_enable(&adapter->napi);
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if (!adapter->open_device_map && (err = cxgb_up(adapter)) < 0) {
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napi_disable(&adapter->napi);
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return err;
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}
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__set_bit(dev->if_port, &adapter->open_device_map);
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link_start(&adapter->port[dev->if_port]);
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netif_start_queue(dev);
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if (!other_ports && adapter->params.stats_update_period)
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schedule_mac_stats_update(adapter,
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adapter->params.stats_update_period);
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return 0;
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}
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static int cxgb_close(struct net_device *dev)
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{
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struct adapter *adapter = dev->ml_priv;
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struct port_info *p = &adapter->port[dev->if_port];
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struct cmac *mac = p->mac;
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netif_stop_queue(dev);
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napi_disable(&adapter->napi);
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mac->ops->disable(mac, MAC_DIRECTION_TX | MAC_DIRECTION_RX);
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netif_carrier_off(dev);
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clear_bit(dev->if_port, &adapter->open_device_map);
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if (adapter->params.stats_update_period &&
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!(adapter->open_device_map & PORT_MASK)) {
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/* Stop statistics accumulation. */
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smp_mb__after_clear_bit();
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spin_lock(&adapter->work_lock); /* sync with update task */
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spin_unlock(&adapter->work_lock);
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cancel_mac_stats_update(adapter);
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}
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if (!adapter->open_device_map)
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cxgb_down(adapter);
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return 0;
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}
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static struct net_device_stats *t1_get_stats(struct net_device *dev)
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{
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struct adapter *adapter = dev->ml_priv;
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struct port_info *p = &adapter->port[dev->if_port];
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struct net_device_stats *ns = &p->netstats;
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const struct cmac_statistics *pstats;
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/* Do a full update of the MAC stats */
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pstats = p->mac->ops->statistics_update(p->mac,
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MAC_STATS_UPDATE_FULL);
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ns->tx_packets = pstats->TxUnicastFramesOK +
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pstats->TxMulticastFramesOK + pstats->TxBroadcastFramesOK;
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ns->rx_packets = pstats->RxUnicastFramesOK +
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pstats->RxMulticastFramesOK + pstats->RxBroadcastFramesOK;
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ns->tx_bytes = pstats->TxOctetsOK;
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ns->rx_bytes = pstats->RxOctetsOK;
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ns->tx_errors = pstats->TxLateCollisions + pstats->TxLengthErrors +
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pstats->TxUnderrun + pstats->TxFramesAbortedDueToXSCollisions;
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ns->rx_errors = pstats->RxDataErrors + pstats->RxJabberErrors +
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pstats->RxFCSErrors + pstats->RxAlignErrors +
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pstats->RxSequenceErrors + pstats->RxFrameTooLongErrors +
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pstats->RxSymbolErrors + pstats->RxRuntErrors;
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ns->multicast = pstats->RxMulticastFramesOK;
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ns->collisions = pstats->TxTotalCollisions;
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/* detailed rx_errors */
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ns->rx_length_errors = pstats->RxFrameTooLongErrors +
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pstats->RxJabberErrors;
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ns->rx_over_errors = 0;
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ns->rx_crc_errors = pstats->RxFCSErrors;
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ns->rx_frame_errors = pstats->RxAlignErrors;
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ns->rx_fifo_errors = 0;
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ns->rx_missed_errors = 0;
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/* detailed tx_errors */
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ns->tx_aborted_errors = pstats->TxFramesAbortedDueToXSCollisions;
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ns->tx_carrier_errors = 0;
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ns->tx_fifo_errors = pstats->TxUnderrun;
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ns->tx_heartbeat_errors = 0;
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ns->tx_window_errors = pstats->TxLateCollisions;
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return ns;
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}
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static u32 get_msglevel(struct net_device *dev)
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{
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struct adapter *adapter = dev->ml_priv;
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return adapter->msg_enable;
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}
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static void set_msglevel(struct net_device *dev, u32 val)
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{
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struct adapter *adapter = dev->ml_priv;
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adapter->msg_enable = val;
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}
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static char stats_strings[][ETH_GSTRING_LEN] = {
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"TxOctetsOK",
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"TxOctetsBad",
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"TxUnicastFramesOK",
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"TxMulticastFramesOK",
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"TxBroadcastFramesOK",
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"TxPauseFrames",
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"TxFramesWithDeferredXmissions",
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"TxLateCollisions",
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"TxTotalCollisions",
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"TxFramesAbortedDueToXSCollisions",
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"TxUnderrun",
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"TxLengthErrors",
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"TxInternalMACXmitError",
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"TxFramesWithExcessiveDeferral",
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"TxFCSErrors",
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"TxJumboFramesOk",
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"TxJumboOctetsOk",
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"RxOctetsOK",
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"RxOctetsBad",
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"RxUnicastFramesOK",
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"RxMulticastFramesOK",
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"RxBroadcastFramesOK",
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"RxPauseFrames",
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"RxFCSErrors",
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"RxAlignErrors",
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"RxSymbolErrors",
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"RxDataErrors",
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"RxSequenceErrors",
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"RxRuntErrors",
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"RxJabberErrors",
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"RxInternalMACRcvError",
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"RxInRangeLengthErrors",
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"RxOutOfRangeLengthField",
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"RxFrameTooLongErrors",
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"RxJumboFramesOk",
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"RxJumboOctetsOk",
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/* Port stats */
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"RxCsumGood",
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"TxCsumOffload",
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"TxTso",
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"RxVlan",
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"TxVlan",
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"TxNeedHeadroom",
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/* Interrupt stats */
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"rx drops",
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"pure_rsps",
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"unhandled irqs",
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"respQ_empty",
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"respQ_overflow",
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"freelistQ_empty",
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"pkt_too_big",
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"pkt_mismatch",
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"cmdQ_full0",
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"cmdQ_full1",
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"espi_DIP2ParityErr",
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"espi_DIP4Err",
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"espi_RxDrops",
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"espi_TxDrops",
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"espi_RxOvfl",
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"espi_ParityErr"
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};
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#define T2_REGMAP_SIZE (3 * 1024)
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static int get_regs_len(struct net_device *dev)
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{
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return T2_REGMAP_SIZE;
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}
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static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
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{
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struct adapter *adapter = dev->ml_priv;
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strcpy(info->driver, DRV_NAME);
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strcpy(info->version, DRV_VERSION);
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strcpy(info->fw_version, "N/A");
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strcpy(info->bus_info, pci_name(adapter->pdev));
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}
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static int get_sset_count(struct net_device *dev, int sset)
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{
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switch (sset) {
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case ETH_SS_STATS:
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return ARRAY_SIZE(stats_strings);
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default:
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return -EOPNOTSUPP;
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}
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}
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|
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static void get_strings(struct net_device *dev, u32 stringset, u8 *data)
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{
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if (stringset == ETH_SS_STATS)
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memcpy(data, stats_strings, sizeof(stats_strings));
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}
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|
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static void get_stats(struct net_device *dev, struct ethtool_stats *stats,
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u64 *data)
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{
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struct adapter *adapter = dev->ml_priv;
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struct cmac *mac = adapter->port[dev->if_port].mac;
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const struct cmac_statistics *s;
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const struct sge_intr_counts *t;
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struct sge_port_stats ss;
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s = mac->ops->statistics_update(mac, MAC_STATS_UPDATE_FULL);
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t = t1_sge_get_intr_counts(adapter->sge);
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t1_sge_get_port_stats(adapter->sge, dev->if_port, &ss);
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*data++ = s->TxOctetsOK;
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*data++ = s->TxOctetsBad;
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*data++ = s->TxUnicastFramesOK;
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*data++ = s->TxMulticastFramesOK;
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*data++ = s->TxBroadcastFramesOK;
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*data++ = s->TxPauseFrames;
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*data++ = s->TxFramesWithDeferredXmissions;
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*data++ = s->TxLateCollisions;
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*data++ = s->TxTotalCollisions;
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*data++ = s->TxFramesAbortedDueToXSCollisions;
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*data++ = s->TxUnderrun;
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*data++ = s->TxLengthErrors;
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*data++ = s->TxInternalMACXmitError;
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*data++ = s->TxFramesWithExcessiveDeferral;
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*data++ = s->TxFCSErrors;
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*data++ = s->TxJumboFramesOK;
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*data++ = s->TxJumboOctetsOK;
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*data++ = s->RxOctetsOK;
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*data++ = s->RxOctetsBad;
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*data++ = s->RxUnicastFramesOK;
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*data++ = s->RxMulticastFramesOK;
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*data++ = s->RxBroadcastFramesOK;
|
|
*data++ = s->RxPauseFrames;
|
|
*data++ = s->RxFCSErrors;
|
|
*data++ = s->RxAlignErrors;
|
|
*data++ = s->RxSymbolErrors;
|
|
*data++ = s->RxDataErrors;
|
|
*data++ = s->RxSequenceErrors;
|
|
*data++ = s->RxRuntErrors;
|
|
*data++ = s->RxJabberErrors;
|
|
*data++ = s->RxInternalMACRcvError;
|
|
*data++ = s->RxInRangeLengthErrors;
|
|
*data++ = s->RxOutOfRangeLengthField;
|
|
*data++ = s->RxFrameTooLongErrors;
|
|
*data++ = s->RxJumboFramesOK;
|
|
*data++ = s->RxJumboOctetsOK;
|
|
|
|
*data++ = ss.rx_cso_good;
|
|
*data++ = ss.tx_cso;
|
|
*data++ = ss.tx_tso;
|
|
*data++ = ss.vlan_xtract;
|
|
*data++ = ss.vlan_insert;
|
|
*data++ = ss.tx_need_hdrroom;
|
|
|
|
*data++ = t->rx_drops;
|
|
*data++ = t->pure_rsps;
|
|
*data++ = t->unhandled_irqs;
|
|
*data++ = t->respQ_empty;
|
|
*data++ = t->respQ_overflow;
|
|
*data++ = t->freelistQ_empty;
|
|
*data++ = t->pkt_too_big;
|
|
*data++ = t->pkt_mismatch;
|
|
*data++ = t->cmdQ_full[0];
|
|
*data++ = t->cmdQ_full[1];
|
|
|
|
if (adapter->espi) {
|
|
const struct espi_intr_counts *e;
|
|
|
|
e = t1_espi_get_intr_counts(adapter->espi);
|
|
*data++ = e->DIP2_parity_err;
|
|
*data++ = e->DIP4_err;
|
|
*data++ = e->rx_drops;
|
|
*data++ = e->tx_drops;
|
|
*data++ = e->rx_ovflw;
|
|
*data++ = e->parity_err;
|
|
}
|
|
}
|
|
|
|
static inline void reg_block_dump(struct adapter *ap, void *buf,
|
|
unsigned int start, unsigned int end)
|
|
{
|
|
u32 *p = buf + start;
|
|
|
|
for ( ; start <= end; start += sizeof(u32))
|
|
*p++ = readl(ap->regs + start);
|
|
}
|
|
|
|
static void get_regs(struct net_device *dev, struct ethtool_regs *regs,
|
|
void *buf)
|
|
{
|
|
struct adapter *ap = dev->ml_priv;
|
|
|
|
/*
|
|
* Version scheme: bits 0..9: chip version, bits 10..15: chip revision
|
|
*/
|
|
regs->version = 2;
|
|
|
|
memset(buf, 0, T2_REGMAP_SIZE);
|
|
reg_block_dump(ap, buf, 0, A_SG_RESPACCUTIMER);
|
|
reg_block_dump(ap, buf, A_MC3_CFG, A_MC4_INT_CAUSE);
|
|
reg_block_dump(ap, buf, A_TPI_ADDR, A_TPI_PAR);
|
|
reg_block_dump(ap, buf, A_TP_IN_CONFIG, A_TP_TX_DROP_COUNT);
|
|
reg_block_dump(ap, buf, A_RAT_ROUTE_CONTROL, A_RAT_INTR_CAUSE);
|
|
reg_block_dump(ap, buf, A_CSPI_RX_AE_WM, A_CSPI_INTR_ENABLE);
|
|
reg_block_dump(ap, buf, A_ESPI_SCH_TOKEN0, A_ESPI_GOSTAT);
|
|
reg_block_dump(ap, buf, A_ULP_ULIMIT, A_ULP_PIO_CTRL);
|
|
reg_block_dump(ap, buf, A_PL_ENABLE, A_PL_CAUSE);
|
|
reg_block_dump(ap, buf, A_MC5_CONFIG, A_MC5_MASK_WRITE_CMD);
|
|
}
|
|
|
|
static int get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
|
|
{
|
|
struct adapter *adapter = dev->ml_priv;
|
|
struct port_info *p = &adapter->port[dev->if_port];
|
|
|
|
cmd->supported = p->link_config.supported;
|
|
cmd->advertising = p->link_config.advertising;
|
|
|
|
if (netif_carrier_ok(dev)) {
|
|
cmd->speed = p->link_config.speed;
|
|
cmd->duplex = p->link_config.duplex;
|
|
} else {
|
|
cmd->speed = -1;
|
|
cmd->duplex = -1;
|
|
}
|
|
|
|
cmd->port = (cmd->supported & SUPPORTED_TP) ? PORT_TP : PORT_FIBRE;
|
|
cmd->phy_address = p->phy->mdio.prtad;
|
|
cmd->transceiver = XCVR_EXTERNAL;
|
|
cmd->autoneg = p->link_config.autoneg;
|
|
cmd->maxtxpkt = 0;
|
|
cmd->maxrxpkt = 0;
|
|
return 0;
|
|
}
|
|
|
|
static int speed_duplex_to_caps(int speed, int duplex)
|
|
{
|
|
int cap = 0;
|
|
|
|
switch (speed) {
|
|
case SPEED_10:
|
|
if (duplex == DUPLEX_FULL)
|
|
cap = SUPPORTED_10baseT_Full;
|
|
else
|
|
cap = SUPPORTED_10baseT_Half;
|
|
break;
|
|
case SPEED_100:
|
|
if (duplex == DUPLEX_FULL)
|
|
cap = SUPPORTED_100baseT_Full;
|
|
else
|
|
cap = SUPPORTED_100baseT_Half;
|
|
break;
|
|
case SPEED_1000:
|
|
if (duplex == DUPLEX_FULL)
|
|
cap = SUPPORTED_1000baseT_Full;
|
|
else
|
|
cap = SUPPORTED_1000baseT_Half;
|
|
break;
|
|
case SPEED_10000:
|
|
if (duplex == DUPLEX_FULL)
|
|
cap = SUPPORTED_10000baseT_Full;
|
|
}
|
|
return cap;
|
|
}
|
|
|
|
#define ADVERTISED_MASK (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \
|
|
ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \
|
|
ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full | \
|
|
ADVERTISED_10000baseT_Full)
|
|
|
|
static int set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
|
|
{
|
|
struct adapter *adapter = dev->ml_priv;
|
|
struct port_info *p = &adapter->port[dev->if_port];
|
|
struct link_config *lc = &p->link_config;
|
|
|
|
if (!(lc->supported & SUPPORTED_Autoneg))
|
|
return -EOPNOTSUPP; /* can't change speed/duplex */
|
|
|
|
if (cmd->autoneg == AUTONEG_DISABLE) {
|
|
int cap = speed_duplex_to_caps(cmd->speed, cmd->duplex);
|
|
|
|
if (!(lc->supported & cap) || cmd->speed == SPEED_1000)
|
|
return -EINVAL;
|
|
lc->requested_speed = cmd->speed;
|
|
lc->requested_duplex = cmd->duplex;
|
|
lc->advertising = 0;
|
|
} else {
|
|
cmd->advertising &= ADVERTISED_MASK;
|
|
if (cmd->advertising & (cmd->advertising - 1))
|
|
cmd->advertising = lc->supported;
|
|
cmd->advertising &= lc->supported;
|
|
if (!cmd->advertising)
|
|
return -EINVAL;
|
|
lc->requested_speed = SPEED_INVALID;
|
|
lc->requested_duplex = DUPLEX_INVALID;
|
|
lc->advertising = cmd->advertising | ADVERTISED_Autoneg;
|
|
}
|
|
lc->autoneg = cmd->autoneg;
|
|
if (netif_running(dev))
|
|
t1_link_start(p->phy, p->mac, lc);
|
|
return 0;
|
|
}
|
|
|
|
static void get_pauseparam(struct net_device *dev,
|
|
struct ethtool_pauseparam *epause)
|
|
{
|
|
struct adapter *adapter = dev->ml_priv;
|
|
struct port_info *p = &adapter->port[dev->if_port];
|
|
|
|
epause->autoneg = (p->link_config.requested_fc & PAUSE_AUTONEG) != 0;
|
|
epause->rx_pause = (p->link_config.fc & PAUSE_RX) != 0;
|
|
epause->tx_pause = (p->link_config.fc & PAUSE_TX) != 0;
|
|
}
|
|
|
|
static int set_pauseparam(struct net_device *dev,
|
|
struct ethtool_pauseparam *epause)
|
|
{
|
|
struct adapter *adapter = dev->ml_priv;
|
|
struct port_info *p = &adapter->port[dev->if_port];
|
|
struct link_config *lc = &p->link_config;
|
|
|
|
if (epause->autoneg == AUTONEG_DISABLE)
|
|
lc->requested_fc = 0;
|
|
else if (lc->supported & SUPPORTED_Autoneg)
|
|
lc->requested_fc = PAUSE_AUTONEG;
|
|
else
|
|
return -EINVAL;
|
|
|
|
if (epause->rx_pause)
|
|
lc->requested_fc |= PAUSE_RX;
|
|
if (epause->tx_pause)
|
|
lc->requested_fc |= PAUSE_TX;
|
|
if (lc->autoneg == AUTONEG_ENABLE) {
|
|
if (netif_running(dev))
|
|
t1_link_start(p->phy, p->mac, lc);
|
|
} else {
|
|
lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
|
|
if (netif_running(dev))
|
|
p->mac->ops->set_speed_duplex_fc(p->mac, -1, -1,
|
|
lc->fc);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static u32 get_rx_csum(struct net_device *dev)
|
|
{
|
|
struct adapter *adapter = dev->ml_priv;
|
|
|
|
return (adapter->flags & RX_CSUM_ENABLED) != 0;
|
|
}
|
|
|
|
static int set_rx_csum(struct net_device *dev, u32 data)
|
|
{
|
|
struct adapter *adapter = dev->ml_priv;
|
|
|
|
if (data)
|
|
adapter->flags |= RX_CSUM_ENABLED;
|
|
else
|
|
adapter->flags &= ~RX_CSUM_ENABLED;
|
|
return 0;
|
|
}
|
|
|
|
static int set_tso(struct net_device *dev, u32 value)
|
|
{
|
|
struct adapter *adapter = dev->ml_priv;
|
|
|
|
if (!(adapter->flags & TSO_CAPABLE))
|
|
return value ? -EOPNOTSUPP : 0;
|
|
return ethtool_op_set_tso(dev, value);
|
|
}
|
|
|
|
static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
|
|
{
|
|
struct adapter *adapter = dev->ml_priv;
|
|
int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
|
|
|
|
e->rx_max_pending = MAX_RX_BUFFERS;
|
|
e->rx_mini_max_pending = 0;
|
|
e->rx_jumbo_max_pending = MAX_RX_JUMBO_BUFFERS;
|
|
e->tx_max_pending = MAX_CMDQ_ENTRIES;
|
|
|
|
e->rx_pending = adapter->params.sge.freelQ_size[!jumbo_fl];
|
|
e->rx_mini_pending = 0;
|
|
e->rx_jumbo_pending = adapter->params.sge.freelQ_size[jumbo_fl];
|
|
e->tx_pending = adapter->params.sge.cmdQ_size[0];
|
|
}
|
|
|
|
static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
|
|
{
|
|
struct adapter *adapter = dev->ml_priv;
|
|
int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
|
|
|
|
if (e->rx_pending > MAX_RX_BUFFERS || e->rx_mini_pending ||
|
|
e->rx_jumbo_pending > MAX_RX_JUMBO_BUFFERS ||
|
|
e->tx_pending > MAX_CMDQ_ENTRIES ||
|
|
e->rx_pending < MIN_FL_ENTRIES ||
|
|
e->rx_jumbo_pending < MIN_FL_ENTRIES ||
|
|
e->tx_pending < (adapter->params.nports + 1) * (MAX_SKB_FRAGS + 1))
|
|
return -EINVAL;
|
|
|
|
if (adapter->flags & FULL_INIT_DONE)
|
|
return -EBUSY;
|
|
|
|
adapter->params.sge.freelQ_size[!jumbo_fl] = e->rx_pending;
|
|
adapter->params.sge.freelQ_size[jumbo_fl] = e->rx_jumbo_pending;
|
|
adapter->params.sge.cmdQ_size[0] = e->tx_pending;
|
|
adapter->params.sge.cmdQ_size[1] = e->tx_pending > MAX_CMDQ1_ENTRIES ?
|
|
MAX_CMDQ1_ENTRIES : e->tx_pending;
|
|
return 0;
|
|
}
|
|
|
|
static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
|
|
{
|
|
struct adapter *adapter = dev->ml_priv;
|
|
|
|
adapter->params.sge.rx_coalesce_usecs = c->rx_coalesce_usecs;
|
|
adapter->params.sge.coalesce_enable = c->use_adaptive_rx_coalesce;
|
|
adapter->params.sge.sample_interval_usecs = c->rate_sample_interval;
|
|
t1_sge_set_coalesce_params(adapter->sge, &adapter->params.sge);
|
|
return 0;
|
|
}
|
|
|
|
static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
|
|
{
|
|
struct adapter *adapter = dev->ml_priv;
|
|
|
|
c->rx_coalesce_usecs = adapter->params.sge.rx_coalesce_usecs;
|
|
c->rate_sample_interval = adapter->params.sge.sample_interval_usecs;
|
|
c->use_adaptive_rx_coalesce = adapter->params.sge.coalesce_enable;
|
|
return 0;
|
|
}
|
|
|
|
static int get_eeprom_len(struct net_device *dev)
|
|
{
|
|
struct adapter *adapter = dev->ml_priv;
|
|
|
|
return t1_is_asic(adapter) ? EEPROM_SIZE : 0;
|
|
}
|
|
|
|
#define EEPROM_MAGIC(ap) \
|
|
(PCI_VENDOR_ID_CHELSIO | ((ap)->params.chip_version << 16))
|
|
|
|
static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *e,
|
|
u8 *data)
|
|
{
|
|
int i;
|
|
u8 buf[EEPROM_SIZE] __attribute__((aligned(4)));
|
|
struct adapter *adapter = dev->ml_priv;
|
|
|
|
e->magic = EEPROM_MAGIC(adapter);
|
|
for (i = e->offset & ~3; i < e->offset + e->len; i += sizeof(u32))
|
|
t1_seeprom_read(adapter, i, (__le32 *)&buf[i]);
|
|
memcpy(data, buf + e->offset, e->len);
|
|
return 0;
|
|
}
|
|
|
|
static const struct ethtool_ops t1_ethtool_ops = {
|
|
.get_settings = get_settings,
|
|
.set_settings = set_settings,
|
|
.get_drvinfo = get_drvinfo,
|
|
.get_msglevel = get_msglevel,
|
|
.set_msglevel = set_msglevel,
|
|
.get_ringparam = get_sge_param,
|
|
.set_ringparam = set_sge_param,
|
|
.get_coalesce = get_coalesce,
|
|
.set_coalesce = set_coalesce,
|
|
.get_eeprom_len = get_eeprom_len,
|
|
.get_eeprom = get_eeprom,
|
|
.get_pauseparam = get_pauseparam,
|
|
.set_pauseparam = set_pauseparam,
|
|
.get_rx_csum = get_rx_csum,
|
|
.set_rx_csum = set_rx_csum,
|
|
.set_tx_csum = ethtool_op_set_tx_csum,
|
|
.set_sg = ethtool_op_set_sg,
|
|
.get_link = ethtool_op_get_link,
|
|
.get_strings = get_strings,
|
|
.get_sset_count = get_sset_count,
|
|
.get_ethtool_stats = get_stats,
|
|
.get_regs_len = get_regs_len,
|
|
.get_regs = get_regs,
|
|
.set_tso = set_tso,
|
|
};
|
|
|
|
static int t1_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
|
|
{
|
|
struct adapter *adapter = dev->ml_priv;
|
|
struct mdio_if_info *mdio = &adapter->port[dev->if_port].phy->mdio;
|
|
|
|
return mdio_mii_ioctl(mdio, if_mii(req), cmd);
|
|
}
|
|
|
|
static int t1_change_mtu(struct net_device *dev, int new_mtu)
|
|
{
|
|
int ret;
|
|
struct adapter *adapter = dev->ml_priv;
|
|
struct cmac *mac = adapter->port[dev->if_port].mac;
|
|
|
|
if (!mac->ops->set_mtu)
|
|
return -EOPNOTSUPP;
|
|
if (new_mtu < 68)
|
|
return -EINVAL;
|
|
if ((ret = mac->ops->set_mtu(mac, new_mtu)))
|
|
return ret;
|
|
dev->mtu = new_mtu;
|
|
return 0;
|
|
}
|
|
|
|
static int t1_set_mac_addr(struct net_device *dev, void *p)
|
|
{
|
|
struct adapter *adapter = dev->ml_priv;
|
|
struct cmac *mac = adapter->port[dev->if_port].mac;
|
|
struct sockaddr *addr = p;
|
|
|
|
if (!mac->ops->macaddress_set)
|
|
return -EOPNOTSUPP;
|
|
|
|
memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
|
|
mac->ops->macaddress_set(mac, dev->dev_addr);
|
|
return 0;
|
|
}
|
|
|
|
#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
|
|
static void t1_vlan_rx_register(struct net_device *dev,
|
|
struct vlan_group *grp)
|
|
{
|
|
struct adapter *adapter = dev->ml_priv;
|
|
|
|
spin_lock_irq(&adapter->async_lock);
|
|
adapter->vlan_grp = grp;
|
|
t1_set_vlan_accel(adapter, grp != NULL);
|
|
spin_unlock_irq(&adapter->async_lock);
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
static void t1_netpoll(struct net_device *dev)
|
|
{
|
|
unsigned long flags;
|
|
struct adapter *adapter = dev->ml_priv;
|
|
|
|
local_irq_save(flags);
|
|
t1_interrupt(adapter->pdev->irq, adapter);
|
|
local_irq_restore(flags);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Periodic accumulation of MAC statistics. This is used only if the MAC
|
|
* does not have any other way to prevent stats counter overflow.
|
|
*/
|
|
static void mac_stats_task(struct work_struct *work)
|
|
{
|
|
int i;
|
|
struct adapter *adapter =
|
|
container_of(work, struct adapter, stats_update_task.work);
|
|
|
|
for_each_port(adapter, i) {
|
|
struct port_info *p = &adapter->port[i];
|
|
|
|
if (netif_running(p->dev))
|
|
p->mac->ops->statistics_update(p->mac,
|
|
MAC_STATS_UPDATE_FAST);
|
|
}
|
|
|
|
/* Schedule the next statistics update if any port is active. */
|
|
spin_lock(&adapter->work_lock);
|
|
if (adapter->open_device_map & PORT_MASK)
|
|
schedule_mac_stats_update(adapter,
|
|
adapter->params.stats_update_period);
|
|
spin_unlock(&adapter->work_lock);
|
|
}
|
|
|
|
/*
|
|
* Processes elmer0 external interrupts in process context.
|
|
*/
|
|
static void ext_intr_task(struct work_struct *work)
|
|
{
|
|
struct adapter *adapter =
|
|
container_of(work, struct adapter, ext_intr_handler_task);
|
|
|
|
t1_elmer0_ext_intr_handler(adapter);
|
|
|
|
/* Now reenable external interrupts */
|
|
spin_lock_irq(&adapter->async_lock);
|
|
adapter->slow_intr_mask |= F_PL_INTR_EXT;
|
|
writel(F_PL_INTR_EXT, adapter->regs + A_PL_CAUSE);
|
|
writel(adapter->slow_intr_mask | F_PL_INTR_SGE_DATA,
|
|
adapter->regs + A_PL_ENABLE);
|
|
spin_unlock_irq(&adapter->async_lock);
|
|
}
|
|
|
|
/*
|
|
* Interrupt-context handler for elmer0 external interrupts.
|
|
*/
|
|
void t1_elmer0_ext_intr(struct adapter *adapter)
|
|
{
|
|
/*
|
|
* Schedule a task to handle external interrupts as we require
|
|
* a process context. We disable EXT interrupts in the interim
|
|
* and let the task reenable them when it's done.
|
|
*/
|
|
adapter->slow_intr_mask &= ~F_PL_INTR_EXT;
|
|
writel(adapter->slow_intr_mask | F_PL_INTR_SGE_DATA,
|
|
adapter->regs + A_PL_ENABLE);
|
|
schedule_work(&adapter->ext_intr_handler_task);
|
|
}
|
|
|
|
void t1_fatal_err(struct adapter *adapter)
|
|
{
|
|
if (adapter->flags & FULL_INIT_DONE) {
|
|
t1_sge_stop(adapter->sge);
|
|
t1_interrupts_disable(adapter);
|
|
}
|
|
CH_ALERT("%s: encountered fatal error, operation suspended\n",
|
|
adapter->name);
|
|
}
|
|
|
|
static const struct net_device_ops cxgb_netdev_ops = {
|
|
.ndo_open = cxgb_open,
|
|
.ndo_stop = cxgb_close,
|
|
.ndo_start_xmit = t1_start_xmit,
|
|
.ndo_get_stats = t1_get_stats,
|
|
.ndo_validate_addr = eth_validate_addr,
|
|
.ndo_set_multicast_list = t1_set_rxmode,
|
|
.ndo_do_ioctl = t1_ioctl,
|
|
.ndo_change_mtu = t1_change_mtu,
|
|
.ndo_set_mac_address = t1_set_mac_addr,
|
|
#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
|
|
.ndo_vlan_rx_register = t1_vlan_rx_register,
|
|
#endif
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
.ndo_poll_controller = t1_netpoll,
|
|
#endif
|
|
};
|
|
|
|
static int __devinit init_one(struct pci_dev *pdev,
|
|
const struct pci_device_id *ent)
|
|
{
|
|
static int version_printed;
|
|
|
|
int i, err, pci_using_dac = 0;
|
|
unsigned long mmio_start, mmio_len;
|
|
const struct board_info *bi;
|
|
struct adapter *adapter = NULL;
|
|
struct port_info *pi;
|
|
|
|
if (!version_printed) {
|
|
printk(KERN_INFO "%s - version %s\n", DRV_DESCRIPTION,
|
|
DRV_VERSION);
|
|
++version_printed;
|
|
}
|
|
|
|
err = pci_enable_device(pdev);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
|
|
CH_ERR("%s: cannot find PCI device memory base address\n",
|
|
pci_name(pdev));
|
|
err = -ENODEV;
|
|
goto out_disable_pdev;
|
|
}
|
|
|
|
if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
|
|
pci_using_dac = 1;
|
|
|
|
if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) {
|
|
CH_ERR("%s: unable to obtain 64-bit DMA for "
|
|
"consistent allocations\n", pci_name(pdev));
|
|
err = -ENODEV;
|
|
goto out_disable_pdev;
|
|
}
|
|
|
|
} else if ((err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) != 0) {
|
|
CH_ERR("%s: no usable DMA configuration\n", pci_name(pdev));
|
|
goto out_disable_pdev;
|
|
}
|
|
|
|
err = pci_request_regions(pdev, DRV_NAME);
|
|
if (err) {
|
|
CH_ERR("%s: cannot obtain PCI resources\n", pci_name(pdev));
|
|
goto out_disable_pdev;
|
|
}
|
|
|
|
pci_set_master(pdev);
|
|
|
|
mmio_start = pci_resource_start(pdev, 0);
|
|
mmio_len = pci_resource_len(pdev, 0);
|
|
bi = t1_get_board_info(ent->driver_data);
|
|
|
|
for (i = 0; i < bi->port_number; ++i) {
|
|
struct net_device *netdev;
|
|
|
|
netdev = alloc_etherdev(adapter ? 0 : sizeof(*adapter));
|
|
if (!netdev) {
|
|
err = -ENOMEM;
|
|
goto out_free_dev;
|
|
}
|
|
|
|
SET_NETDEV_DEV(netdev, &pdev->dev);
|
|
|
|
if (!adapter) {
|
|
adapter = netdev_priv(netdev);
|
|
adapter->pdev = pdev;
|
|
adapter->port[0].dev = netdev; /* so we don't leak it */
|
|
|
|
adapter->regs = ioremap(mmio_start, mmio_len);
|
|
if (!adapter->regs) {
|
|
CH_ERR("%s: cannot map device registers\n",
|
|
pci_name(pdev));
|
|
err = -ENOMEM;
|
|
goto out_free_dev;
|
|
}
|
|
|
|
if (t1_get_board_rev(adapter, bi, &adapter->params)) {
|
|
err = -ENODEV; /* Can't handle this chip rev */
|
|
goto out_free_dev;
|
|
}
|
|
|
|
adapter->name = pci_name(pdev);
|
|
adapter->msg_enable = dflt_msg_enable;
|
|
adapter->mmio_len = mmio_len;
|
|
|
|
spin_lock_init(&adapter->tpi_lock);
|
|
spin_lock_init(&adapter->work_lock);
|
|
spin_lock_init(&adapter->async_lock);
|
|
spin_lock_init(&adapter->mac_lock);
|
|
|
|
INIT_WORK(&adapter->ext_intr_handler_task,
|
|
ext_intr_task);
|
|
INIT_DELAYED_WORK(&adapter->stats_update_task,
|
|
mac_stats_task);
|
|
|
|
pci_set_drvdata(pdev, netdev);
|
|
}
|
|
|
|
pi = &adapter->port[i];
|
|
pi->dev = netdev;
|
|
netif_carrier_off(netdev);
|
|
netdev->irq = pdev->irq;
|
|
netdev->if_port = i;
|
|
netdev->mem_start = mmio_start;
|
|
netdev->mem_end = mmio_start + mmio_len - 1;
|
|
netdev->ml_priv = adapter;
|
|
netdev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
|
|
netdev->features |= NETIF_F_LLTX;
|
|
|
|
adapter->flags |= RX_CSUM_ENABLED | TCP_CSUM_CAPABLE;
|
|
if (pci_using_dac)
|
|
netdev->features |= NETIF_F_HIGHDMA;
|
|
if (vlan_tso_capable(adapter)) {
|
|
#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
|
|
adapter->flags |= VLAN_ACCEL_CAPABLE;
|
|
netdev->features |=
|
|
NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
|
|
#endif
|
|
|
|
/* T204: disable TSO */
|
|
if (!(is_T2(adapter)) || bi->port_number != 4) {
|
|
adapter->flags |= TSO_CAPABLE;
|
|
netdev->features |= NETIF_F_TSO;
|
|
}
|
|
}
|
|
|
|
netdev->netdev_ops = &cxgb_netdev_ops;
|
|
netdev->hard_header_len += (adapter->flags & TSO_CAPABLE) ?
|
|
sizeof(struct cpl_tx_pkt_lso) : sizeof(struct cpl_tx_pkt);
|
|
|
|
netif_napi_add(netdev, &adapter->napi, t1_poll, 64);
|
|
|
|
SET_ETHTOOL_OPS(netdev, &t1_ethtool_ops);
|
|
}
|
|
|
|
if (t1_init_sw_modules(adapter, bi) < 0) {
|
|
err = -ENODEV;
|
|
goto out_free_dev;
|
|
}
|
|
|
|
/*
|
|
* The card is now ready to go. If any errors occur during device
|
|
* registration we do not fail the whole card but rather proceed only
|
|
* with the ports we manage to register successfully. However we must
|
|
* register at least one net device.
|
|
*/
|
|
for (i = 0; i < bi->port_number; ++i) {
|
|
err = register_netdev(adapter->port[i].dev);
|
|
if (err)
|
|
CH_WARN("%s: cannot register net device %s, skipping\n",
|
|
pci_name(pdev), adapter->port[i].dev->name);
|
|
else {
|
|
/*
|
|
* Change the name we use for messages to the name of
|
|
* the first successfully registered interface.
|
|
*/
|
|
if (!adapter->registered_device_map)
|
|
adapter->name = adapter->port[i].dev->name;
|
|
|
|
__set_bit(i, &adapter->registered_device_map);
|
|
}
|
|
}
|
|
if (!adapter->registered_device_map) {
|
|
CH_ERR("%s: could not register any net devices\n",
|
|
pci_name(pdev));
|
|
goto out_release_adapter_res;
|
|
}
|
|
|
|
printk(KERN_INFO "%s: %s (rev %d), %s %dMHz/%d-bit\n", adapter->name,
|
|
bi->desc, adapter->params.chip_revision,
|
|
adapter->params.pci.is_pcix ? "PCIX" : "PCI",
|
|
adapter->params.pci.speed, adapter->params.pci.width);
|
|
|
|
/*
|
|
* Set the T1B ASIC and memory clocks.
|
|
*/
|
|
if (t1powersave)
|
|
adapter->t1powersave = LCLOCK; /* HW default is powersave mode. */
|
|
else
|
|
adapter->t1powersave = HCLOCK;
|
|
if (t1_is_T1B(adapter))
|
|
t1_clock(adapter, t1powersave);
|
|
|
|
return 0;
|
|
|
|
out_release_adapter_res:
|
|
t1_free_sw_modules(adapter);
|
|
out_free_dev:
|
|
if (adapter) {
|
|
if (adapter->regs)
|
|
iounmap(adapter->regs);
|
|
for (i = bi->port_number - 1; i >= 0; --i)
|
|
if (adapter->port[i].dev)
|
|
free_netdev(adapter->port[i].dev);
|
|
}
|
|
pci_release_regions(pdev);
|
|
out_disable_pdev:
|
|
pci_disable_device(pdev);
|
|
pci_set_drvdata(pdev, NULL);
|
|
return err;
|
|
}
|
|
|
|
static void bit_bang(struct adapter *adapter, int bitdata, int nbits)
|
|
{
|
|
int data;
|
|
int i;
|
|
u32 val;
|
|
|
|
enum {
|
|
S_CLOCK = 1 << 3,
|
|
S_DATA = 1 << 4
|
|
};
|
|
|
|
for (i = (nbits - 1); i > -1; i--) {
|
|
|
|
udelay(50);
|
|
|
|
data = ((bitdata >> i) & 0x1);
|
|
__t1_tpi_read(adapter, A_ELMER0_GPO, &val);
|
|
|
|
if (data)
|
|
val |= S_DATA;
|
|
else
|
|
val &= ~S_DATA;
|
|
|
|
udelay(50);
|
|
|
|
/* Set SCLOCK low */
|
|
val &= ~S_CLOCK;
|
|
__t1_tpi_write(adapter, A_ELMER0_GPO, val);
|
|
|
|
udelay(50);
|
|
|
|
/* Write SCLOCK high */
|
|
val |= S_CLOCK;
|
|
__t1_tpi_write(adapter, A_ELMER0_GPO, val);
|
|
|
|
}
|
|
}
|
|
|
|
static int t1_clock(struct adapter *adapter, int mode)
|
|
{
|
|
u32 val;
|
|
int M_CORE_VAL;
|
|
int M_MEM_VAL;
|
|
|
|
enum {
|
|
M_CORE_BITS = 9,
|
|
T_CORE_VAL = 0,
|
|
T_CORE_BITS = 2,
|
|
N_CORE_VAL = 0,
|
|
N_CORE_BITS = 2,
|
|
M_MEM_BITS = 9,
|
|
T_MEM_VAL = 0,
|
|
T_MEM_BITS = 2,
|
|
N_MEM_VAL = 0,
|
|
N_MEM_BITS = 2,
|
|
NP_LOAD = 1 << 17,
|
|
S_LOAD_MEM = 1 << 5,
|
|
S_LOAD_CORE = 1 << 6,
|
|
S_CLOCK = 1 << 3
|
|
};
|
|
|
|
if (!t1_is_T1B(adapter))
|
|
return -ENODEV; /* Can't re-clock this chip. */
|
|
|
|
if (mode & 2)
|
|
return 0; /* show current mode. */
|
|
|
|
if ((adapter->t1powersave & 1) == (mode & 1))
|
|
return -EALREADY; /* ASIC already running in mode. */
|
|
|
|
if ((mode & 1) == HCLOCK) {
|
|
M_CORE_VAL = 0x14;
|
|
M_MEM_VAL = 0x18;
|
|
adapter->t1powersave = HCLOCK; /* overclock */
|
|
} else {
|
|
M_CORE_VAL = 0xe;
|
|
M_MEM_VAL = 0x10;
|
|
adapter->t1powersave = LCLOCK; /* underclock */
|
|
}
|
|
|
|
/* Don't interrupt this serial stream! */
|
|
spin_lock(&adapter->tpi_lock);
|
|
|
|
/* Initialize for ASIC core */
|
|
__t1_tpi_read(adapter, A_ELMER0_GPO, &val);
|
|
val |= NP_LOAD;
|
|
udelay(50);
|
|
__t1_tpi_write(adapter, A_ELMER0_GPO, val);
|
|
udelay(50);
|
|
__t1_tpi_read(adapter, A_ELMER0_GPO, &val);
|
|
val &= ~S_LOAD_CORE;
|
|
val &= ~S_CLOCK;
|
|
__t1_tpi_write(adapter, A_ELMER0_GPO, val);
|
|
udelay(50);
|
|
|
|
/* Serial program the ASIC clock synthesizer */
|
|
bit_bang(adapter, T_CORE_VAL, T_CORE_BITS);
|
|
bit_bang(adapter, N_CORE_VAL, N_CORE_BITS);
|
|
bit_bang(adapter, M_CORE_VAL, M_CORE_BITS);
|
|
udelay(50);
|
|
|
|
/* Finish ASIC core */
|
|
__t1_tpi_read(adapter, A_ELMER0_GPO, &val);
|
|
val |= S_LOAD_CORE;
|
|
udelay(50);
|
|
__t1_tpi_write(adapter, A_ELMER0_GPO, val);
|
|
udelay(50);
|
|
__t1_tpi_read(adapter, A_ELMER0_GPO, &val);
|
|
val &= ~S_LOAD_CORE;
|
|
udelay(50);
|
|
__t1_tpi_write(adapter, A_ELMER0_GPO, val);
|
|
udelay(50);
|
|
|
|
/* Initialize for memory */
|
|
__t1_tpi_read(adapter, A_ELMER0_GPO, &val);
|
|
val |= NP_LOAD;
|
|
udelay(50);
|
|
__t1_tpi_write(adapter, A_ELMER0_GPO, val);
|
|
udelay(50);
|
|
__t1_tpi_read(adapter, A_ELMER0_GPO, &val);
|
|
val &= ~S_LOAD_MEM;
|
|
val &= ~S_CLOCK;
|
|
udelay(50);
|
|
__t1_tpi_write(adapter, A_ELMER0_GPO, val);
|
|
udelay(50);
|
|
|
|
/* Serial program the memory clock synthesizer */
|
|
bit_bang(adapter, T_MEM_VAL, T_MEM_BITS);
|
|
bit_bang(adapter, N_MEM_VAL, N_MEM_BITS);
|
|
bit_bang(adapter, M_MEM_VAL, M_MEM_BITS);
|
|
udelay(50);
|
|
|
|
/* Finish memory */
|
|
__t1_tpi_read(adapter, A_ELMER0_GPO, &val);
|
|
val |= S_LOAD_MEM;
|
|
udelay(50);
|
|
__t1_tpi_write(adapter, A_ELMER0_GPO, val);
|
|
udelay(50);
|
|
__t1_tpi_read(adapter, A_ELMER0_GPO, &val);
|
|
val &= ~S_LOAD_MEM;
|
|
udelay(50);
|
|
__t1_tpi_write(adapter, A_ELMER0_GPO, val);
|
|
|
|
spin_unlock(&adapter->tpi_lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline void t1_sw_reset(struct pci_dev *pdev)
|
|
{
|
|
pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 3);
|
|
pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 0);
|
|
}
|
|
|
|
static void __devexit remove_one(struct pci_dev *pdev)
|
|
{
|
|
struct net_device *dev = pci_get_drvdata(pdev);
|
|
struct adapter *adapter = dev->ml_priv;
|
|
int i;
|
|
|
|
for_each_port(adapter, i) {
|
|
if (test_bit(i, &adapter->registered_device_map))
|
|
unregister_netdev(adapter->port[i].dev);
|
|
}
|
|
|
|
t1_free_sw_modules(adapter);
|
|
iounmap(adapter->regs);
|
|
|
|
while (--i >= 0) {
|
|
if (adapter->port[i].dev)
|
|
free_netdev(adapter->port[i].dev);
|
|
}
|
|
|
|
pci_release_regions(pdev);
|
|
pci_disable_device(pdev);
|
|
pci_set_drvdata(pdev, NULL);
|
|
t1_sw_reset(pdev);
|
|
}
|
|
|
|
static struct pci_driver driver = {
|
|
.name = DRV_NAME,
|
|
.id_table = t1_pci_tbl,
|
|
.probe = init_one,
|
|
.remove = __devexit_p(remove_one),
|
|
};
|
|
|
|
static int __init t1_init_module(void)
|
|
{
|
|
return pci_register_driver(&driver);
|
|
}
|
|
|
|
static void __exit t1_cleanup_module(void)
|
|
{
|
|
pci_unregister_driver(&driver);
|
|
}
|
|
|
|
module_init(t1_init_module);
|
|
module_exit(t1_cleanup_module);
|