ixgb_ethtool.c

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

  Intel PRO/10GbE Linux driver
  Copyright(c) 1999 - 2006 Intel Corporation.

  This program is free software; you can redistribute it and/or modify it
  under the terms and conditions of the GNU General Public License,
  version 2, as published by the Free Software Foundation.

  This program is distributed in the hope 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.,
  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.

  The full GNU General Public License is included in this distribution in
  the file called "COPYING".

  Contact Information:
  Linux NICS <[e-mail]>
  e1000-devel Mailing List <[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 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);

#define IXGB_ALL_RAR_ENTRIES 16

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)},
	{"tx_timeout_count", IXGB_STAT(tx_timeout_count) },
	{"tx_restart_queue", IXGB_STAT(restart_queue) },
	{"rx_long_length_errors", IXGB_STAT(stats.roc)},
	{"rx_short_length_errors", IXGB_STAT(stats.ruc)},
	{"tx_tcp_seg_good", IXGB_STAT(stats.tsctc)},
	{"tx_tcp_seg_failed", IXGB_STAT(stats.tsctfc)},
	{"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	ARRAY_SIZE(ixgb_gstrings_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 void ixgb_set_speed_duplex(struct net_device *netdev)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);
	/* 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);
}

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);
		ixgb_set_speed_duplex(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);
		ixgb_set_speed_duplex(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);
		ixgb_set_speed_duplex(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;
}

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;
} 

static uint32_t
ixgb_get_msglevel(struct net_device *netdev)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);
	return adapter->msg_enable;
}

static void
ixgb_set_msglevel(struct net_device *netdev, uint32_t data)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);
	adapter->msg_enable = data;
}
#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 < IXGB_ALL_RAR_ENTRIES; 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 */