diff options
Diffstat (limited to 'drivers/net/chelsio/cxgb2.c')
| -rw-r--r-- | drivers/net/chelsio/cxgb2.c | 1379 |
1 files changed, 0 insertions, 1379 deletions
diff --git a/drivers/net/chelsio/cxgb2.c b/drivers/net/chelsio/cxgb2.c deleted file mode 100644 index 3edbbc4c511..00000000000 --- a/drivers/net/chelsio/cxgb2.c +++ /dev/null @@ -1,1379 +0,0 @@ -/***************************************************************************** - * * - * File: cxgb2.c * - * $Revision: 1.25 $ * - * $Date: 2005/06/22 00:43:25 $ * - * Description: * - * Chelsio 10Gb Ethernet Driver. * - * * - * This program is free software; you can redistribute it and/or modify * - * it under the terms of the GNU General Public License, version 2, as * - * published by the Free Software Foundation. * - * * - * 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. * - * * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * - * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * - * * - * http://www.chelsio.com * - * * - * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. * - * All rights reserved. * - * * - * Maintainers: maintainers@chelsio.com * - * * - * Authors: Dimitrios Michailidis <dm@chelsio.com> * - * Tina Yang <tainay@chelsio.com> * - * Felix Marti <felix@chelsio.com> * - * Scott Bardone <sbardone@chelsio.com> * - * Kurt Ottaway <kottaway@chelsio.com> * - * Frank DiMambro <frank@chelsio.com> * - * * - * History: * - * * - ****************************************************************************/ - -#include "common.h" -#include <linux/module.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/if_vlan.h> -#include <linux/mii.h> -#include <linux/sockios.h> -#include <linux/dma-mapping.h> -#include <asm/uaccess.h> - -#include "cpl5_cmd.h" -#include "regs.h" -#include "gmac.h" -#include "cphy.h" -#include "sge.h" -#include "tp.h" -#include "espi.h" -#include "elmer0.h" - -#include <linux/workqueue.h> - -static inline void schedule_mac_stats_update(struct adapter *ap, int secs) -{ - schedule_delayed_work(&ap->stats_update_task, secs * HZ); -} - -static inline void cancel_mac_stats_update(struct adapter *ap) -{ - cancel_delayed_work(&ap->stats_update_task); -} - -#define MAX_CMDQ_ENTRIES 16384 -#define MAX_CMDQ1_ENTRIES 1024 -#define MAX_RX_BUFFERS 16384 -#define MAX_RX_JUMBO_BUFFERS 16384 -#define MAX_TX_BUFFERS_HIGH 16384U -#define MAX_TX_BUFFERS_LOW 1536U -#define MAX_TX_BUFFERS 1460U -#define MIN_FL_ENTRIES 32 - -#define DFLT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | \ - NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP |\ - NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR) - -/* - * The EEPROM is actually bigger but only the first few bytes are used so we - * only report those. - */ -#define EEPROM_SIZE 32 - -MODULE_DESCRIPTION(DRV_DESCRIPTION); -MODULE_AUTHOR("Chelsio Communications"); -MODULE_LICENSE("GPL"); - -static int dflt_msg_enable = DFLT_MSG_ENABLE; - -module_param(dflt_msg_enable, int, 0); -MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T1 default message enable bitmap"); - -#define HCLOCK 0x0 -#define LCLOCK 0x1 - -/* T1 cards powersave mode */ -static int t1_clock(struct adapter *adapter, int mode); -static int t1powersave = 1; /* HW default is powersave mode. */ - -module_param(t1powersave, int, 0); -MODULE_PARM_DESC(t1powersave, "Enable/Disable T1 powersaving mode"); - -static int disable_msi = 0; -module_param(disable_msi, int, 0); -MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)"); - -static const char pci_speed[][4] = { - "33", "66", "100", "133" -}; - -/* - * Setup MAC to receive the types of packets we want. - */ -static void t1_set_rxmode(struct net_device *dev) -{ - struct adapter *adapter = dev->ml_priv; - struct cmac *mac = adapter->port[dev->if_port].mac; - struct t1_rx_mode rm; - - rm.dev = dev; - mac->ops->set_rx_mode(mac, &rm); -} - -static void link_report(struct port_info *p) -{ - if (!netif_carrier_ok(p->dev)) - printk(KERN_INFO "%s: link down\n", p->dev->name); - else { - const char *s = "10Mbps"; - - switch (p->link_config.speed) { - case SPEED_10000: s = "10Gbps"; break; - case SPEED_1000: s = "1000Mbps"; break; - case SPEED_100: s = "100Mbps"; break; - } - - printk(KERN_INFO "%s: link up, %s, %s-duplex\n", - p->dev->name, s, - p->link_config.duplex == DUPLEX_FULL ? "full" : "half"); - } -} - -void t1_link_negotiated(struct adapter *adapter, int port_id, int link_stat, - int speed, int duplex, int pause) -{ - struct port_info *p = &adapter->port[port_id]; - - if (link_stat != netif_carrier_ok(p->dev)) { - if (link_stat) - netif_carrier_on(p->dev); - else - netif_carrier_off(p->dev); - link_report(p); - - /* multi-ports: inform toe */ - if ((speed > 0) && (adapter->params.nports > 1)) { - unsigned int sched_speed = 10; - switch (speed) { - case SPEED_1000: - sched_speed = 1000; - break; - case SPEED_100: - sched_speed = 100; - break; - case SPEED_10: - sched_speed = 10; - break; - } - t1_sched_update_parms(adapter->sge, port_id, 0, sched_speed); - } - } -} - -static void link_start(struct port_info *p) -{ - struct cmac *mac = p->mac; - - mac->ops->reset(mac); - if (mac->ops->macaddress_set) - mac->ops->macaddress_set(mac, p->dev->dev_addr); - t1_set_rxmode(p->dev); - t1_link_start(p->phy, mac, &p->link_config); - mac->ops->enable(mac, MAC_DIRECTION_RX | MAC_DIRECTION_TX); -} - -static void enable_hw_csum(struct adapter *adapter) -{ - if (adapter->port[0].dev->hw_features & NETIF_F_TSO) - t1_tp_set_ip_checksum_offload(adapter->tp, 1); /* for TSO only */ - t1_tp_set_tcp_checksum_offload(adapter->tp, 1); -} - -/* - * Things to do upon first use of a card. - * This must run with the rtnl lock held. - */ -static int cxgb_up(struct adapter *adapter) -{ - int err = 0; - - if (!(adapter->flags & FULL_INIT_DONE)) { - err = t1_init_hw_modules(adapter); - if (err) - goto out_err; - - enable_hw_csum(adapter); - adapter->flags |= FULL_INIT_DONE; - } - - t1_interrupts_clear(adapter); - - adapter->params.has_msi = !disable_msi && !pci_enable_msi(adapter->pdev); - err = request_irq(adapter->pdev->irq, t1_interrupt, - adapter->params.has_msi ? 0 : IRQF_SHARED, - adapter->name, adapter); - if (err) { - if (adapter->params.has_msi) - pci_disable_msi(adapter->pdev); - - goto out_err; - } - - t1_sge_start(adapter->sge); - t1_interrupts_enable(adapter); -out_err: - return err; -} - -/* - * Release resources when all the ports have been stopped. - */ -static void cxgb_down(struct adapter *adapter) -{ - t1_sge_stop(adapter->sge); - t1_interrupts_disable(adapter); - free_irq(adapter->pdev->irq, adapter); - if (adapter->params.has_msi) - pci_disable_msi(adapter->pdev); -} - -static int cxgb_open(struct net_device *dev) -{ - int err; - struct adapter *adapter = dev->ml_priv; - int other_ports = adapter->open_device_map & PORT_MASK; - - napi_enable(&adapter->napi); - if (!adapter->open_device_map && (err = cxgb_up(adapter)) < 0) { - napi_disable(&adapter->napi); - return err; - } - - __set_bit(dev->if_port, &adapter->open_device_map); - link_start(&adapter->port[dev->if_port]); - netif_start_queue(dev); - if (!other_ports && adapter->params.stats_update_period) - schedule_mac_stats_update(adapter, - adapter->params.stats_update_period); - - t1_vlan_mode(adapter, dev->features); - return 0; -} - -static int cxgb_close(struct net_device *dev) -{ - struct adapter *adapter = dev->ml_priv; - struct port_info *p = &adapter->port[dev->if_port]; - struct cmac *mac = p->mac; - - netif_stop_queue(dev); - napi_disable(&adapter->napi); - mac->ops->disable(mac, MAC_DIRECTION_TX | MAC_DIRECTION_RX); - netif_carrier_off(dev); - - clear_bit(dev->if_port, &adapter->open_device_map); - if (adapter->params.stats_update_period && - !(adapter->open_device_map & PORT_MASK)) { - /* Stop statistics accumulation. */ - smp_mb__after_clear_bit(); - spin_lock(&adapter->work_lock); /* sync with update task */ - spin_unlock(&adapter->work_lock); - cancel_mac_stats_update(adapter); - } - - if (!adapter->open_device_map) - cxgb_down(adapter); - return 0; -} - -static struct net_device_stats *t1_get_stats(struct net_device *dev) -{ - struct adapter *adapter = dev->ml_priv; - struct port_info *p = &adapter->port[dev->if_port]; - struct net_device_stats *ns = &p->netstats; - const struct cmac_statistics *pstats; - - /* Do a full update of the MAC stats */ - pstats = p->mac->ops->statistics_update(p->mac, - MAC_STATS_UPDATE_FULL); - - ns->tx_packets = pstats->TxUnicastFramesOK + - pstats->TxMulticastFramesOK + pstats->TxBroadcastFramesOK; - - ns->rx_packets = pstats->RxUnicastFramesOK + - pstats->RxMulticastFramesOK + pstats->RxBroadcastFramesOK; - - ns->tx_bytes = pstats->TxOctetsOK; - ns->rx_bytes = pstats->RxOctetsOK; - - ns->tx_errors = pstats->TxLateCollisions + pstats->TxLengthErrors + - pstats->TxUnderrun + pstats->TxFramesAbortedDueToXSCollisions; - ns->rx_errors = pstats->RxDataErrors + pstats->RxJabberErrors + - pstats->RxFCSErrors + pstats->RxAlignErrors + - pstats->RxSequenceErrors + pstats->RxFrameTooLongErrors + - pstats->RxSymbolErrors + pstats->RxRuntErrors; - - ns->multicast = pstats->RxMulticastFramesOK; - ns->collisions = pstats->TxTotalCollisions; - - /* detailed rx_errors */ - ns->rx_length_errors = pstats->RxFrameTooLongErrors + - pstats->RxJabberErrors; - ns->rx_over_errors = 0; - ns->rx_crc_errors = pstats->RxFCSErrors; - ns->rx_frame_errors = pstats->RxAlignErrors; - ns->rx_fifo_errors = 0; - ns->rx_missed_errors = 0; - - /* detailed tx_errors */ - ns->tx_aborted_errors = pstats->TxFramesAbortedDueToXSCollisions; - ns->tx_carrier_errors = 0; - ns->tx_fifo_errors = pstats->TxUnderrun; - ns->tx_heartbeat_errors = 0; - ns->tx_window_errors = pstats->TxLateCollisions; - return ns; -} - -static u32 get_msglevel(struct net_device *dev) -{ - struct adapter *adapter = dev->ml_priv; - - return adapter->msg_enable; -} - -static void set_msglevel(struct net_device *dev, u32 val) -{ - struct adapter *adapter = dev->ml_priv; - - adapter->msg_enable = val; -} - -static char stats_strings[][ETH_GSTRING_LEN] = { - "TxOctetsOK", - "TxOctetsBad", - "TxUnicastFramesOK", - "TxMulticastFramesOK", - "TxBroadcastFramesOK", - "TxPauseFrames", - "TxFramesWithDeferredXmissions", - "TxLateCollisions", - "TxTotalCollisions", - "TxFramesAbortedDueToXSCollisions", - "TxUnderrun", - "TxLengthErrors", - "TxInternalMACXmitError", - "TxFramesWithExcessiveDeferral", - "TxFCSErrors", - "TxJumboFramesOk", - "TxJumboOctetsOk", - - "RxOctetsOK", - "RxOctetsBad", - "RxUnicastFramesOK", - "RxMulticastFramesOK", - "RxBroadcastFramesOK", - "RxPauseFrames", - "RxFCSErrors", - "RxAlignErrors", - "RxSymbolErrors", - "RxDataErrors", - "RxSequenceErrors", - "RxRuntErrors", - "RxJabberErrors", - "RxInternalMACRcvError", - "RxInRangeLengthErrors", - "RxOutOfRangeLengthField", - "RxFrameTooLongErrors", - "RxJumboFramesOk", - "RxJumboOctetsOk", - - /* Port stats */ - "RxCsumGood", - "TxCsumOffload", - "TxTso", - "RxVlan", - "TxVlan", - "TxNeedHeadroom", - - /* Interrupt stats */ - "rx drops", - "pure_rsps", - "unhandled irqs", - "respQ_empty", - "respQ_overflow", - "freelistQ_empty", - "pkt_too_big", - "pkt_mismatch", - "cmdQ_full0", - "cmdQ_full1", - - "espi_DIP2ParityErr", - "espi_DIP4Err", - "espi_RxDrops", - "espi_TxDrops", - "espi_RxOvfl", - "espi_ParityErr" -}; - -#define T2_REGMAP_SIZE (3 * 1024) - -static int get_regs_len(struct net_device *dev) -{ - return T2_REGMAP_SIZE; -} - -static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) -{ - struct adapter *adapter = dev->ml_priv; - - strcpy(info->driver, DRV_NAME); - strcpy(info->version, DRV_VERSION); - strcpy(info->fw_version, "N/A"); - strcpy(info->bus_info, pci_name(adapter->pdev)); -} - -static int get_sset_count(struct net_device *dev, int sset) -{ - switch (sset) { - case ETH_SS_STATS: - return ARRAY_SIZE(stats_strings); - default: - return -EOPNOTSUPP; - } -} - -static void get_strings(struct net_device *dev, u32 stringset, u8 *data) -{ - if (stringset == ETH_SS_STATS) - memcpy(data, stats_strings, sizeof(stats_strings)); -} - -static void get_stats(struct net_device *dev, struct ethtool_stats *stats, - u64 *data) -{ - struct adapter *adapter = dev->ml_priv; - struct cmac *mac = adapter->port[dev->if_port].mac; - const struct cmac_statistics *s; - const struct sge_intr_counts *t; - struct sge_port_stats ss; - - s = mac->ops->statistics_update(mac, MAC_STATS_UPDATE_FULL); - t = t1_sge_get_intr_counts(adapter->sge); - t1_sge_get_port_stats(adapter->sge, dev->if_port, &ss); - - *data++ = s->TxOctetsOK; - *data++ = s->TxOctetsBad; - *data++ = s->TxUnicastFramesOK; - *data++ = s->TxMulticastFramesOK; - *data++ = s->TxBroadcastFramesOK; - *data++ = s->TxPauseFrames; - *data++ = s->TxFramesWithDeferredXmissions; - *data++ = s->TxLateCollisions; - *data++ = s->TxTotalCollisions; - *data++ = s->TxFramesAbortedDueToXSCollisions; - *data++ = s->TxUnderrun; - *data++ = s->TxLengthErrors; - *data++ = s->TxInternalMACXmitError; - *data++ = s->TxFramesWithExcessiveDeferral; - *data++ = s->TxFCSErrors; - *data++ = s->TxJumboFramesOK; - *data++ = s->TxJumboOctetsOK; - - *data++ = s->RxOctetsOK; - *data++ = s->RxOctetsBad; - *data++ = s->RxUnicastFramesOK; - *data++ = s->RxMulticastFramesOK; - *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)) { - ethtool_cmd_speed_set(cmd, p->link_config.speed); - cmd->duplex = p->link_config.duplex; - } else { - ethtool_cmd_speed_set(cmd, -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) { - u32 speed = ethtool_cmd_speed(cmd); - int cap = speed_duplex_to_caps(speed, cmd->duplex); - - if (!(lc->supported & cap) || (speed == SPEED_1000)) - return -EINVAL; - lc->requested_speed = 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 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_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, -}; - -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; -} - -static u32 t1_fix_features(struct net_device *dev, u32 features) -{ - /* - * Since there is no support for separate rx/tx vlan accel - * enable/disable make sure tx flag is always in same state as rx. - */ - if (features & NETIF_F_HW_VLAN_RX) - features |= NETIF_F_HW_VLAN_TX; - else - features &= ~NETIF_F_HW_VLAN_TX; - - return features; -} - -static int t1_set_features(struct net_device *dev, u32 features) -{ - u32 changed = dev->features ^ features; - struct adapter *adapter = dev->ml_priv; - - if (changed & NETIF_F_HW_VLAN_RX) - t1_vlan_mode(adapter, features); - - return 0; -} -#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); - } - pr_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, - .ndo_fix_features = t1_fix_features, - .ndo_set_features = t1_set_features, -#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)) { - pr_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))) { - pr_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) { - pr_err("%s: no usable DMA configuration\n", pci_name(pdev)); - goto out_disable_pdev; - } - - err = pci_request_regions(pdev, DRV_NAME); - if (err) { - pr_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) { - pr_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->hw_features |= NETIF_F_SG | NETIF_F_IP_CSUM | - NETIF_F_RXCSUM; - netdev->features |= NETIF_F_SG | NETIF_F_IP_CSUM | - NETIF_F_RXCSUM | NETIF_F_LLTX; - - if (pci_using_dac) - netdev->features |= NETIF_F_HIGHDMA; - if (vlan_tso_capable(adapter)) { - netdev->features |= - NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX; - netdev->hw_features |= NETIF_F_HW_VLAN_RX; - - /* T204: disable TSO */ - if (!(is_T2(adapter)) || bi->port_number != 4) { - netdev->hw_features |= NETIF_F_TSO; - netdev->features |= NETIF_F_TSO; - } - } - - netdev->netdev_ops = &cxgb_netdev_ops; - netdev->hard_header_len += (netdev->hw_features & NETIF_F_TSO) ? - 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) - pr_warning("%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) { - pr_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); |