ixgb_ethtool.c

linux-2.6.15.6

/*******************************************************************************

  
  Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
  
  This program is free software; you can redistribute it and/or modify it 
  under the terms of the GNU General Public License as published by the Free 
  Software Foundation; either version 2 of the License, or (at your option) 
  any later version.
  
  This program is distributed in the hope that it will be useful, but WITHOUT 
  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 
  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for 
  more details.
  
  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.
  
  The full GNU General Public License is included in this distribution in the
  file called LICENSE.
  
  Contact Information:
  Linux NICS <[e-mail]>
  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497

*******************************************************************************/

/* ethtool support for ixgb */

#include "ixgb.h"

#include <asm/uaccess.h>

extern char ixgb_driver_name[];
extern char ixgb_driver_version[];

extern int ixgb_up(struct ixgb_adapter *adapter);
extern void ixgb_down(struct ixgb_adapter *adapter, boolean_t kill_watchdog);
extern void ixgb_reset(struct ixgb_adapter *adapter);
extern int ixgb_setup_rx_resources(struct ixgb_adapter *adapter);
extern int ixgb_setup_tx_resources(struct ixgb_adapter *adapter);
extern void ixgb_free_rx_resources(struct ixgb_adapter *adapter);
extern void ixgb_free_tx_resources(struct ixgb_adapter *adapter);
extern void ixgb_update_stats(struct ixgb_adapter *adapter);

struct ixgb_stats {
	char stat_string[ETH_GSTRING_LEN];
	int sizeof_stat;
	int stat_offset;
};

#define IXGB_STAT(m) sizeof(((struct ixgb_adapter *)0)->m), \
		      offsetof(struct ixgb_adapter, m)
static struct ixgb_stats ixgb_gstrings_stats[] = {
	{"rx_packets", IXGB_STAT(net_stats.rx_packets)},
	{"tx_packets", IXGB_STAT(net_stats.tx_packets)},
	{"rx_bytes", IXGB_STAT(net_stats.rx_bytes)},
	{"tx_bytes", IXGB_STAT(net_stats.tx_bytes)},
	{"rx_errors", IXGB_STAT(net_stats.rx_errors)},
	{"tx_errors", IXGB_STAT(net_stats.tx_errors)},
	{"rx_dropped", IXGB_STAT(net_stats.rx_dropped)},
	{"tx_dropped", IXGB_STAT(net_stats.tx_dropped)},
	{"multicast", IXGB_STAT(net_stats.multicast)},
	{"collisions", IXGB_STAT(net_stats.collisions)},

/*	{ "rx_length_errors", IXGB_STAT(net_stats.rx_length_errors) },	*/
	{"rx_over_errors", IXGB_STAT(net_stats.rx_over_errors)},
	{"rx_crc_errors", IXGB_STAT(net_stats.rx_crc_errors)},
	{"rx_frame_errors", IXGB_STAT(net_stats.rx_frame_errors)},
	{"rx_fifo_errors", IXGB_STAT(net_stats.rx_fifo_errors)},
	{"rx_missed_errors", IXGB_STAT(net_stats.rx_missed_errors)},
	{"tx_aborted_errors", IXGB_STAT(net_stats.tx_aborted_errors)},
	{"tx_carrier_errors", IXGB_STAT(net_stats.tx_carrier_errors)},
	{"tx_fifo_errors", IXGB_STAT(net_stats.tx_fifo_errors)},
	{"tx_heartbeat_errors", IXGB_STAT(net_stats.tx_heartbeat_errors)},
	{"tx_window_errors", IXGB_STAT(net_stats.tx_window_errors)},
	{"tx_deferred_ok", IXGB_STAT(stats.dc)},
	{"rx_long_length_errors", IXGB_STAT(stats.roc)},
	{"rx_short_length_errors", IXGB_STAT(stats.ruc)},
#ifdef NETIF_F_TSO
	{"tx_tcp_seg_good", IXGB_STAT(stats.tsctc)},
	{"tx_tcp_seg_failed", IXGB_STAT(stats.tsctfc)},
#endif
	{"rx_flow_control_xon", IXGB_STAT(stats.xonrxc)},
	{"rx_flow_control_xoff", IXGB_STAT(stats.xoffrxc)},
	{"tx_flow_control_xon", IXGB_STAT(stats.xontxc)},
	{"tx_flow_control_xoff", IXGB_STAT(stats.xofftxc)},
	{"rx_csum_offload_good", IXGB_STAT(hw_csum_rx_good)},
	{"rx_csum_offload_errors", IXGB_STAT(hw_csum_rx_error)},
	{"tx_csum_offload_good", IXGB_STAT(hw_csum_tx_good)},
	{"tx_csum_offload_errors", IXGB_STAT(hw_csum_tx_error)}
};

#define IXGB_STATS_LEN	\
	sizeof(ixgb_gstrings_stats) / sizeof(struct ixgb_stats)

static int
ixgb_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);

	ecmd->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE);
	ecmd->advertising = (ADVERTISED_10000baseT_Full | ADVERTISED_FIBRE);
	ecmd->port = PORT_FIBRE;
	ecmd->transceiver = XCVR_EXTERNAL;

	if(netif_carrier_ok(adapter->netdev)) {
		ecmd->speed = SPEED_10000;
		ecmd->duplex = DUPLEX_FULL;
	} else {
		ecmd->speed = -1;
		ecmd->duplex = -1;
	}

	ecmd->autoneg = AUTONEG_DISABLE;
	return 0;
}

static int
ixgb_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);

	if(ecmd->autoneg == AUTONEG_ENABLE ||
	   ecmd->speed + ecmd->duplex != SPEED_10000 + DUPLEX_FULL)
		return -EINVAL;
	
	if(netif_running(adapter->netdev)) {
		ixgb_down(adapter, TRUE);
		ixgb_reset(adapter);
		ixgb_up(adapter);
		/* be optimistic about our link, since we were up before */
		adapter->link_speed = 10000;
		adapter->link_duplex = FULL_DUPLEX;
		netif_carrier_on(netdev);
		netif_wake_queue(netdev);
		
	} else
		ixgb_reset(adapter);

	return 0;
}

static void
ixgb_get_pauseparam(struct net_device *netdev,
			 struct ethtool_pauseparam *pause)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);
	struct ixgb_hw *hw = &adapter->hw;
	
	pause->autoneg = AUTONEG_DISABLE;
		
	if(hw->fc.type == ixgb_fc_rx_pause)
		pause->rx_pause = 1;
	else if(hw->fc.type == ixgb_fc_tx_pause)
		pause->tx_pause = 1;
	else if(hw->fc.type == ixgb_fc_full) {
		pause->rx_pause = 1;
		pause->tx_pause = 1;
	}
}

static int
ixgb_set_pauseparam(struct net_device *netdev,
			 struct ethtool_pauseparam *pause)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);
	struct ixgb_hw *hw = &adapter->hw;
	
	if(pause->autoneg == AUTONEG_ENABLE)
		return -EINVAL;

	if(pause->rx_pause && pause->tx_pause)
		hw->fc.type = ixgb_fc_full;
	else if(pause->rx_pause && !pause->tx_pause)
		hw->fc.type = ixgb_fc_rx_pause;
	else if(!pause->rx_pause && pause->tx_pause)
		hw->fc.type = ixgb_fc_tx_pause;
	else if(!pause->rx_pause && !pause->tx_pause)
		hw->fc.type = ixgb_fc_none;

	if(netif_running(adapter->netdev)) {
		ixgb_down(adapter, TRUE);
		ixgb_up(adapter);
		/* be optimistic about our link, since we were up before */
		adapter->link_speed = 10000;
		adapter->link_duplex = FULL_DUPLEX;
		netif_carrier_on(netdev);
		netif_wake_queue(netdev);
	} else
		ixgb_reset(adapter);
		
	return 0;
}

static uint32_t
ixgb_get_rx_csum(struct net_device *netdev)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);

	return adapter->rx_csum;
}

static int
ixgb_set_rx_csum(struct net_device *netdev, uint32_t data)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);

	adapter->rx_csum = data;

	if(netif_running(netdev)) {
		ixgb_down(adapter,TRUE);
		ixgb_up(adapter);
		/* be optimistic about our link, since we were up before */
		adapter->link_speed = 10000;
		adapter->link_duplex = FULL_DUPLEX;
		netif_carrier_on(netdev);
		netif_wake_queue(netdev);
	} else
		ixgb_reset(adapter);
	return 0;
}
	
static uint32_t
ixgb_get_tx_csum(struct net_device *netdev)
{
	return (netdev->features & NETIF_F_HW_CSUM) != 0;
}

static int
ixgb_set_tx_csum(struct net_device *netdev, uint32_t data)
{
	if (data)
		netdev->features |= NETIF_F_HW_CSUM;
	else
		netdev->features &= ~NETIF_F_HW_CSUM;

	return 0;
}

#ifdef NETIF_F_TSO
static int
ixgb_set_tso(struct net_device *netdev, uint32_t data)
{
	if(data)
		netdev->features |= NETIF_F_TSO;
	else
		netdev->features &= ~NETIF_F_TSO;
	return 0;
} 
#endif /* NETIF_F_TSO */

#define IXGB_GET_STAT(_A_, _R_) _A_->stats._R_

static int 
ixgb_get_regs_len(struct net_device *netdev)
{
#define IXGB_REG_DUMP_LEN  136*sizeof(uint32_t)
	return IXGB_REG_DUMP_LEN;
}

static void
ixgb_get_regs(struct net_device *netdev,
		   struct ethtool_regs *regs, void *p)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);
	struct ixgb_hw *hw = &adapter->hw;
	uint32_t *reg = p;
	uint32_t *reg_start = reg;
	uint8_t i;

	/* the 1 (one) below indicates an attempt at versioning, if the
	 * interface in ethtool or the driver changes, this 1 should be
	 * incremented */
	regs->version = (1<<24) | hw->revision_id << 16 | hw->device_id;

	/* General Registers */
	*reg++ = IXGB_READ_REG(hw, CTRL0);	/*   0 */
	*reg++ = IXGB_READ_REG(hw, CTRL1);	/*   1 */
	*reg++ = IXGB_READ_REG(hw, STATUS);	/*   2 */
	*reg++ = IXGB_READ_REG(hw, EECD);	/*   3 */
	*reg++ = IXGB_READ_REG(hw, MFS);	/*   4 */

	/* Interrupt */
	*reg++ = IXGB_READ_REG(hw, ICR);	/*   5 */
	*reg++ = IXGB_READ_REG(hw, ICS);	/*   6 */
	*reg++ = IXGB_READ_REG(hw, IMS);	/*   7 */
	*reg++ = IXGB_READ_REG(hw, IMC);	/*   8 */

	/* Receive */
	*reg++ = IXGB_READ_REG(hw, RCTL);	/*   9 */
	*reg++ = IXGB_READ_REG(hw, FCRTL);	/*  10 */
	*reg++ = IXGB_READ_REG(hw, FCRTH);	/*  11 */
	*reg++ = IXGB_READ_REG(hw, RDBAL);	/*  12 */
	*reg++ = IXGB_READ_REG(hw, RDBAH);	/*  13 */
	*reg++ = IXGB_READ_REG(hw, RDLEN);	/*  14 */
	*reg++ = IXGB_READ_REG(hw, RDH);	/*  15 */
	*reg++ = IXGB_READ_REG(hw, RDT);	/*  16 */
	*reg++ = IXGB_READ_REG(hw, RDTR);	/*  17 */
	*reg++ = IXGB_READ_REG(hw, RXDCTL);	/*  18 */
	*reg++ = IXGB_READ_REG(hw, RAIDC);	/*  19 */
	*reg++ = IXGB_READ_REG(hw, RXCSUM);	/*  20 */

	/* there are 16 RAR entries in hardware, we only use 3 */
	for(i = 0; i < 16; i++) {
		*reg++ = IXGB_READ_REG_ARRAY(hw, RAL, (i << 1)); /*21,...,51 */
		*reg++ = IXGB_READ_REG_ARRAY(hw, RAH, (i << 1)); /*22,...,52 */
	}

	/* Transmit */
	*reg++ = IXGB_READ_REG(hw, TCTL);	/*  53 */
	*reg++ = IXGB_READ_REG(hw, TDBAL);	/*  54 */
	*reg++ = IXGB_READ_REG(hw, TDBAH);	/*  55 */
	*reg++ = IXGB_READ_REG(hw, TDLEN);	/*  56 */
	*reg++ = IXGB_READ_REG(hw, TDH);	/*  57 */
	*reg++ = IXGB_READ_REG(hw, TDT);	/*  58 */
	*reg++ = IXGB_READ_REG(hw, TIDV);	/*  59 */
	*reg++ = IXGB_READ_REG(hw, TXDCTL);	/*  60 */
	*reg++ = IXGB_READ_REG(hw, TSPMT);	/*  61 */
	*reg++ = IXGB_READ_REG(hw, PAP);	/*  62 */

	/* Physical */
	*reg++ = IXGB_READ_REG(hw, PCSC1);	/*  63 */
	*reg++ = IXGB_READ_REG(hw, PCSC2);	/*  64 */
	*reg++ = IXGB_READ_REG(hw, PCSS1);	/*  65 */
	*reg++ = IXGB_READ_REG(hw, PCSS2);	/*  66 */
	*reg++ = IXGB_READ_REG(hw, XPCSS);	/*  67 */
	*reg++ = IXGB_READ_REG(hw, UCCR);	/*  68 */
	*reg++ = IXGB_READ_REG(hw, XPCSTC);	/*  69 */
	*reg++ = IXGB_READ_REG(hw, MACA);	/*  70 */
	*reg++ = IXGB_READ_REG(hw, APAE);	/*  71 */
	*reg++ = IXGB_READ_REG(hw, ARD);	/*  72 */
	*reg++ = IXGB_READ_REG(hw, AIS);	/*  73 */
	*reg++ = IXGB_READ_REG(hw, MSCA);	/*  74 */
	*reg++ = IXGB_READ_REG(hw, MSRWD);	/*  75 */

	/* Statistics */
	*reg++ = IXGB_GET_STAT(adapter, tprl);	/*  76 */
	*reg++ = IXGB_GET_STAT(adapter, tprh);	/*  77 */
	*reg++ = IXGB_GET_STAT(adapter, gprcl);	/*  78 */
	*reg++ = IXGB_GET_STAT(adapter, gprch);	/*  79 */
	*reg++ = IXGB_GET_STAT(adapter, bprcl);	/*  80 */
	*reg++ = IXGB_GET_STAT(adapter, bprch);	/*  81 */
	*reg++ = IXGB_GET_STAT(adapter, mprcl);	/*  82 */
	*reg++ = IXGB_GET_STAT(adapter, mprch);	/*  83 */
	*reg++ = IXGB_GET_STAT(adapter, uprcl);	/*  84 */
	*reg++ = IXGB_GET_STAT(adapter, uprch);	/*  85 */
	*reg++ = IXGB_GET_STAT(adapter, vprcl);	/*  86 */
	*reg++ = IXGB_GET_STAT(adapter, vprch);	/*  87 */
	*reg++ = IXGB_GET_STAT(adapter, jprcl);	/*  88 */
	*reg++ = IXGB_GET_STAT(adapter, jprch);	/*  89 */
	*reg++ = IXGB_GET_STAT(adapter, gorcl);	/*  90 */
	*reg++ = IXGB_GET_STAT(adapter, gorch);	/*  91 */
	*reg++ = IXGB_GET_STAT(adapter, torl);	/*  92 */
	*reg++ = IXGB_GET_STAT(adapter, torh);	/*  93 */
	*reg++ = IXGB_GET_STAT(adapter, rnbc);	/*  94 */
	*reg++ = IXGB_GET_STAT(adapter, ruc);	/*  95 */
	*reg++ = IXGB_GET_STAT(adapter, roc);	/*  96 */
	*reg++ = IXGB_GET_STAT(adapter, rlec);	/*  97 */
	*reg++ = IXGB_GET_STAT(adapter, crcerrs);	/*  98 */
	*reg++ = IXGB_GET_STAT(adapter, icbc);	/*  99 */
	*reg++ = IXGB_GET_STAT(adapter, ecbc);	/* 100 */
	*reg++ = IXGB_GET_STAT(adapter, mpc);	/* 101 */
	*reg++ = IXGB_GET_STAT(adapter, tptl);	/* 102 */
	*reg++ = IXGB_GET_STAT(adapter, tpth);	/* 103 */