[mirror_ubuntu-bionic-kernel.git] / drivers / net / vmxnet3 / vmxnet3_ethtool.c

/*
 * Linux driver for VMware's vmxnet3 ethernet NIC.
 *
 * Copyright (C) 2008-2009, VMware, Inc. 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; version 2 of the License and no 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, GOOD TITLE or
 * NON INFRINGEMENT.  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".
 *
 * Maintained by: Shreyas Bhatewara <pv-drivers@vmware.com>
 *
 */


#include "vmxnet3_int.h"

struct vmxnet3_stat_desc {
	char desc[ETH_GSTRING_LEN];
	int  offset;
};


static u32
vmxnet3_get_rx_csum(struct net_device *netdev)
{
	struct vmxnet3_adapter *adapter = netdev_priv(netdev);
	return adapter->rxcsum;
}


static int
vmxnet3_set_rx_csum(struct net_device *netdev, u32 val)
{
	struct vmxnet3_adapter *adapter = netdev_priv(netdev);

	if (adapter->rxcsum != val) {
		adapter->rxcsum = val;
		if (netif_running(netdev)) {
			if (val)
				adapter->shared->devRead.misc.uptFeatures |=
				UPT1_F_RXCSUM;
			else
				adapter->shared->devRead.misc.uptFeatures &=
				~UPT1_F_RXCSUM;

			VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
					       VMXNET3_CMD_UPDATE_FEATURE);
		}
	}
	return 0;
}


/* per tq stats maintained by the device */
static const struct vmxnet3_stat_desc
vmxnet3_tq_dev_stats[] = {
	/* description,         offset */
	{ "TSO pkts tx",        offsetof(struct UPT1_TxStats, TSOPktsTxOK) },
	{ "TSO bytes tx",       offsetof(struct UPT1_TxStats, TSOBytesTxOK) },
	{ "ucast pkts tx",      offsetof(struct UPT1_TxStats, ucastPktsTxOK) },
	{ "ucast bytes tx",     offsetof(struct UPT1_TxStats, ucastBytesTxOK) },
	{ "mcast pkts tx",      offsetof(struct UPT1_TxStats, mcastPktsTxOK) },
	{ "mcast bytes tx",     offsetof(struct UPT1_TxStats, mcastBytesTxOK) },
	{ "bcast pkts tx",      offsetof(struct UPT1_TxStats, bcastPktsTxOK) },
	{ "bcast bytes tx",     offsetof(struct UPT1_TxStats, bcastBytesTxOK) },
	{ "pkts tx err",        offsetof(struct UPT1_TxStats, pktsTxError) },
	{ "pkts tx discard",    offsetof(struct UPT1_TxStats, pktsTxDiscard) },
};

/* per tq stats maintained by the driver */
static const struct vmxnet3_stat_desc
vmxnet3_tq_driver_stats[] = {
	/* description,         offset */
	{"drv dropped tx total", offsetof(struct vmxnet3_tq_driver_stats,
					drop_total) },
	{ "   too many frags",  offsetof(struct vmxnet3_tq_driver_stats,
					drop_too_many_frags) },
	{ "   giant hdr",       offsetof(struct vmxnet3_tq_driver_stats,
					drop_oversized_hdr) },
	{ "   hdr err",         offsetof(struct vmxnet3_tq_driver_stats,
					drop_hdr_inspect_err) },
	{ "   tso",             offsetof(struct vmxnet3_tq_driver_stats,
					drop_tso) },
	{ "ring full",          offsetof(struct vmxnet3_tq_driver_stats,
					tx_ring_full) },
	{ "pkts linearized",    offsetof(struct vmxnet3_tq_driver_stats,
					linearized) },
	{ "hdr cloned",         offsetof(struct vmxnet3_tq_driver_stats,
					copy_skb_header) },
	{ "giant hdr",          offsetof(struct vmxnet3_tq_driver_stats,
					oversized_hdr) },
};

/* per rq stats maintained by the device */
static const struct vmxnet3_stat_desc
vmxnet3_rq_dev_stats[] = {
	{ "LRO pkts rx",        offsetof(struct UPT1_RxStats, LROPktsRxOK) },
	{ "LRO byte rx",        offsetof(struct UPT1_RxStats, LROBytesRxOK) },
	{ "ucast pkts rx",      offsetof(struct UPT1_RxStats, ucastPktsRxOK) },
	{ "ucast bytes rx",     offsetof(struct UPT1_RxStats, ucastBytesRxOK) },
	{ "mcast pkts rx",      offsetof(struct UPT1_RxStats, mcastPktsRxOK) },
	{ "mcast bytes rx",     offsetof(struct UPT1_RxStats, mcastBytesRxOK) },
	{ "bcast pkts rx",      offsetof(struct UPT1_RxStats, bcastPktsRxOK) },
	{ "bcast bytes rx",     offsetof(struct UPT1_RxStats, bcastBytesRxOK) },
	{ "pkts rx out of buf", offsetof(struct UPT1_RxStats, pktsRxOutOfBuf) },
	{ "pkts rx err",        offsetof(struct UPT1_RxStats, pktsRxError) },
};

/* per rq stats maintained by the driver */
static const struct vmxnet3_stat_desc
vmxnet3_rq_driver_stats[] = {
	/* description,         offset */
	{ "drv dropped rx total", offsetof(struct vmxnet3_rq_driver_stats,
					   drop_total) },
	{ "   err",            offsetof(struct vmxnet3_rq_driver_stats,
					drop_err) },
	{ "   fcs",            offsetof(struct vmxnet3_rq_driver_stats,
					drop_fcs) },
	{ "rx buf alloc fail", offsetof(struct vmxnet3_rq_driver_stats,
					rx_buf_alloc_failure) },
};

/* gloabl stats maintained by the driver */
static const struct vmxnet3_stat_desc
vmxnet3_global_stats[] = {
	/* description,         offset */
	{ "tx timeout count",   offsetof(struct vmxnet3_adapter,
					 tx_timeout_count) }
};


struct net_device_stats *
vmxnet3_get_stats(struct net_device *netdev)
{
	struct vmxnet3_adapter *adapter;
	struct vmxnet3_tq_driver_stats *drvTxStats;
	struct vmxnet3_rq_driver_stats *drvRxStats;
	struct UPT1_TxStats *devTxStats;
	struct UPT1_RxStats *devRxStats;
	struct net_device_stats *net_stats = &netdev->stats;
	int i;

	adapter = netdev_priv(netdev);

	/* Collect the dev stats into the shared area */
	VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);

	memset(net_stats, 0, sizeof(*net_stats));
	for (i = 0; i < adapter->num_tx_queues; i++) {
		devTxStats = &adapter->tqd_start[i].stats;
		drvTxStats = &adapter->tx_queue[i].stats;
		net_stats->tx_packets += devTxStats->ucastPktsTxOK +
					devTxStats->mcastPktsTxOK +
					devTxStats->bcastPktsTxOK;
		net_stats->tx_bytes += devTxStats->ucastBytesTxOK +
				      devTxStats->mcastBytesTxOK +
				      devTxStats->bcastBytesTxOK;
		net_stats->tx_errors += devTxStats->pktsTxError;
		net_stats->tx_dropped += drvTxStats->drop_total;
	}

	for (i = 0; i < adapter->num_rx_queues; i++) {
		devRxStats = &adapter->rqd_start[i].stats;
		drvRxStats = &adapter->rx_queue[i].stats;
		net_stats->rx_packets += devRxStats->ucastPktsRxOK +
					devRxStats->mcastPktsRxOK +
					devRxStats->bcastPktsRxOK;

		net_stats->rx_bytes += devRxStats->ucastBytesRxOK +
				      devRxStats->mcastBytesRxOK +
				      devRxStats->bcastBytesRxOK;

		net_stats->rx_errors += devRxStats->pktsRxError;
		net_stats->rx_dropped += drvRxStats->drop_total;
		net_stats->multicast +=  devRxStats->mcastPktsRxOK;
	}
	return net_stats;
}

static int
vmxnet3_get_sset_count(struct net_device *netdev, int sset)
{
	switch (sset) {
	case ETH_SS_STATS:
		return ARRAY_SIZE(vmxnet3_tq_dev_stats) +
			ARRAY_SIZE(vmxnet3_tq_driver_stats) +
			ARRAY_SIZE(vmxnet3_rq_dev_stats) +
			ARRAY_SIZE(vmxnet3_rq_driver_stats) +
			ARRAY_SIZE(vmxnet3_global_stats);
	default:
		return -EOPNOTSUPP;
	}
}


static int
vmxnet3_get_regs_len(struct net_device *netdev)
{
	return 20 * sizeof(u32);
}


static void
vmxnet3_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
{
	struct vmxnet3_adapter *adapter = netdev_priv(netdev);

	strlcpy(drvinfo->driver, vmxnet3_driver_name, sizeof(drvinfo->driver));
	drvinfo->driver[sizeof(drvinfo->driver) - 1] = '\0';

	strlcpy(drvinfo->version, VMXNET3_DRIVER_VERSION_REPORT,
		sizeof(drvinfo->version));
	drvinfo->driver[sizeof(drvinfo->version) - 1] = '\0';

	strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version));
	drvinfo->fw_version[sizeof(drvinfo->fw_version) - 1] = '\0';

	strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
		ETHTOOL_BUSINFO_LEN);
	drvinfo->n_stats = vmxnet3_get_sset_count(netdev, ETH_SS_STATS);
	drvinfo->testinfo_len = 0;
	drvinfo->eedump_len   = 0;
	drvinfo->regdump_len  = vmxnet3_get_regs_len(netdev);
}


static void
vmxnet3_get_strings(struct net_device *netdev, u32 stringset, u8 *buf)
{
	if (stringset == ETH_SS_STATS) {
		int i;

		for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++) {
			memcpy(buf, vmxnet3_tq_dev_stats[i].desc,
			       ETH_GSTRING_LEN);
			buf += ETH_GSTRING_LEN;
		}
		for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats); i++) {
			memcpy(buf, vmxnet3_tq_driver_stats[i].desc,
			       ETH_GSTRING_LEN);
			buf += ETH_GSTRING_LEN;
		}
		for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++) {
			memcpy(buf, vmxnet3_rq_dev_stats[i].desc,
			       ETH_GSTRING_LEN);
			buf += ETH_GSTRING_LEN;
		}
		for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats); i++) {
			memcpy(buf, vmxnet3_rq_driver_stats[i].desc,
			       ETH_GSTRING_LEN);
			buf += ETH_GSTRING_LEN;
		}
		for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++) {
			memcpy(buf, vmxnet3_global_stats[i].desc,
				ETH_GSTRING_LEN);
			buf += ETH_GSTRING_LEN;
		}
	}
}

static int
vmxnet3_set_flags(struct net_device *netdev, u32 data)
{
	struct vmxnet3_adapter *adapter = netdev_priv(netdev);
	u8 lro_requested = (data & ETH_FLAG_LRO) == 0 ? 0 : 1;
	u8 lro_present = (netdev->features & NETIF_F_LRO) == 0 ? 0 : 1;

	if (data & ~ETH_FLAG_LRO)
		return -EOPNOTSUPP;

	if (lro_requested ^ lro_present) {
		/* toggle the LRO feature*/
		netdev->features ^= NETIF_F_LRO;

		/* update harware LRO capability accordingly */
		if (lro_requested)
			adapter->shared->devRead.misc.uptFeatures |=
							UPT1_F_LRO;
		else
			adapter->shared->devRead.misc.uptFeatures &=
							~UPT1_F_LRO;
		VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
				       VMXNET3_CMD_UPDATE_FEATURE);
	}
	return 0;
}

static void
vmxnet3_get_ethtool_stats(struct net_device *netdev,
			  struct ethtool_stats *stats, u64  *buf)
{
	struct vmxnet3_adapter *adapter = netdev_priv(netdev);
	u8 *base;
	int i;
	int j = 0;

	VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);

	/* this does assume each counter is 64-bit wide */
/* TODO change this for multiple queues */

	base = (u8 *)&adapter->tqd_start[j].stats;
	for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++)
		*buf++ = *(u64 *)(base + vmxnet3_tq_dev_stats[i].offset);

	base = (u8 *)&adapter->tx_queue[j].stats;
	for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats); i++)
		*buf++ = *(u64 *)(base + vmxnet3_tq_driver_stats[i].offset);

	base = (u8 *)&adapter->rqd_start[j].stats;
	for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++)
		*buf++ = *(u64 *)(base + vmxnet3_rq_dev_stats[i].offset);

	base = (u8 *)&adapter->rx_queue[j].stats;
	for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats); i++)
		*buf++ = *(u64 *)(base + vmxnet3_rq_driver_stats[i].offset);

	base = (u8 *)adapter;
	for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++)
		*buf++ = *(u64 *)(base + vmxnet3_global_stats[i].offset);
}


static void
vmxnet3_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
{
	struct vmxnet3_adapter *adapter = netdev_priv(netdev);
	u32 *buf = p;
	int i = 0;

	memset(p, 0, vmxnet3_get_regs_len(netdev));

	regs->version = 1;

	/* Update vmxnet3_get_regs_len if we want to dump more registers */

	/* make each ring use multiple of 16 bytes */
/* TODO change this for multiple queues */
	buf[0] = adapter->tx_queue[i].tx_ring.next2fill;
	buf[1] = adapter->tx_queue[i].tx_ring.next2comp;
	buf[2] = adapter->tx_queue[i].tx_ring.gen;
	buf[3] = 0;

	buf[4] = adapter->tx_queue[i].comp_ring.next2proc;
	buf[5] = adapter->tx_queue[i].comp_ring.gen;
	buf[6] = adapter->tx_queue[i].stopped;
	buf[7] = 0;

	buf[8] = adapter->rx_queue[i].rx_ring[0].next2fill;
	buf[9] = adapter->rx_queue[i].rx_ring[0].next2comp;
	buf[10] = adapter->rx_queue[i].rx_ring[0].gen;
	buf[11] = 0;

	buf[12] = adapter->rx_queue[i].rx_ring[1].next2fill;
	buf[13] = adapter->rx_queue[i].rx_ring[1].next2comp;
	buf[14] = adapter->rx_queue[i].rx_ring[1].gen;
	buf[15] = 0;

	buf[16] = adapter->rx_queue[i].comp_ring.next2proc;
	buf[17] = adapter->rx_queue[i].comp_ring.gen;
	buf[18] = 0;
	buf[19] = 0;
}


static void
vmxnet3_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
{
	struct vmxnet3_adapter *adapter = netdev_priv(netdev);

	wol->supported = WAKE_UCAST | WAKE_ARP | WAKE_MAGIC;
	wol->wolopts = adapter->wol;
}


static int
vmxnet3_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
{
	struct vmxnet3_adapter *adapter = netdev_priv(netdev);

	if (wol->wolopts & (WAKE_PHY | WAKE_MCAST | WAKE_BCAST |
			    WAKE_MAGICSECURE)) {
		return -EOPNOTSUPP;
	}

	adapter->wol = wol->wolopts;

	device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);

	return 0;
}


static int
vmxnet3_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
{
	struct vmxnet3_adapter *adapter = netdev_priv(netdev);

	ecmd->supported = SUPPORTED_10000baseT_Full | SUPPORTED_1000baseT_Full |
			  SUPPORTED_TP;
	ecmd->advertising = ADVERTISED_TP;
	ecmd->port = PORT_TP;
	ecmd->transceiver = XCVR_INTERNAL;

	if (adapter->link_speed) {
		ecmd->speed = adapter->link_speed;
		ecmd->duplex = DUPLEX_FULL;
	} else {
		ecmd->speed = -1;
		ecmd->duplex = -1;
	}
	return 0;
}


static void
vmxnet3_get_ringparam(struct net_device *netdev,
		      struct ethtool_ringparam *param)
{
	struct vmxnet3_adapter *adapter = netdev_priv(netdev);

	param->rx_max_pending = VMXNET3_RX_RING_MAX_SIZE;
	param->tx_max_pending = VMXNET3_TX_RING_MAX_SIZE;
	param->rx_mini_max_pending = 0;
	param->rx_jumbo_max_pending = 0;

	param->rx_pending = adapter->rx_queue[0].rx_ring[0].size *
			    adapter->num_rx_queues;
	param->tx_pending = adapter->tx_queue[0].tx_ring.size *
			    adapter->num_tx_queues;
	param->rx_mini_pending = 0;
	param->rx_jumbo_pending = 0;
}


static int
vmxnet3_set_ringparam(struct net_device *netdev,
		      struct ethtool_ringparam *param)
{
	struct vmxnet3_adapter *adapter = netdev_priv(netdev);
	u32 new_tx_ring_size, new_rx_ring_size;
	u32 sz;
	int err = 0;

	if (param->tx_pending == 0 || param->tx_pending >
						VMXNET3_TX_RING_MAX_SIZE)
		return -EINVAL;

	if (param->rx_pending == 0 || param->rx_pending >
						VMXNET3_RX_RING_MAX_SIZE)
		return -EINVAL;


	/* round it up to a multiple of VMXNET3_RING_SIZE_ALIGN */
	new_tx_ring_size = (param->tx_pending + VMXNET3_RING_SIZE_MASK) &
							~VMXNET3_RING_SIZE_MASK;
	new_tx_ring_size = min_t(u32, new_tx_ring_size,
				 VMXNET3_TX_RING_MAX_SIZE);
	if (new_tx_ring_size > VMXNET3_TX_RING_MAX_SIZE || (new_tx_ring_size %
						VMXNET3_RING_SIZE_ALIGN) != 0)
		return -EINVAL;

	/* ring0 has to be a multiple of
	 * rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN
	 */
	sz = adapter->rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN;
	new_rx_ring_size = (param->rx_pending + sz - 1) / sz * sz;
	new_rx_ring_size = min_t(u32, new_rx_ring_size,
				 VMXNET3_RX_RING_MAX_SIZE / sz * sz);
	if (new_rx_ring_size > VMXNET3_RX_RING_MAX_SIZE || (new_rx_ring_size %
							   sz) != 0)
		return -EINVAL;

	if (new_tx_ring_size == adapter->tx_queue[0].tx_ring.size &&
	    new_rx_ring_size == adapter->rx_queue[0].rx_ring[0].size) {
		return 0;
	}

	/*
	 * Reset_work may be in the middle of resetting the device, wait for its
	 * completion.
	 */
	while (test_and_set_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state))
		msleep(1);

	if (netif_running(netdev)) {
		vmxnet3_quiesce_dev(adapter);
		vmxnet3_reset_dev(adapter);

		/* recreate the rx queue and the tx queue based on the
		 * new sizes */
		vmxnet3_tq_destroy_all(adapter);
		vmxnet3_rq_destroy_all(adapter);

		err = vmxnet3_create_queues(adapter, new_tx_ring_size,
			new_rx_ring_size, VMXNET3_DEF_RX_RING_SIZE);

		if (err) {
			/* failed, most likely because of OOM, try default
			 * size */
			printk(KERN_ERR "%s: failed to apply new sizes, try the"
				" default ones\n", netdev->name);
			err = vmxnet3_create_queues(adapter,
						    VMXNET3_DEF_TX_RING_SIZE,
						    VMXNET3_DEF_RX_RING_SIZE,
						    VMXNET3_DEF_RX_RING_SIZE);
			if (err) {
				printk(KERN_ERR "%s: failed to create queues "
					"with default sizes. Closing it\n",
					netdev->name);
				goto out;
			}
		}

		err = vmxnet3_activate_dev(adapter);
		if (err)
			printk(KERN_ERR "%s: failed to re-activate, error %d."
				" Closing it\n", netdev->name, err);
	}

out:
	clear_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state);
	if (err)
		vmxnet3_force_close(adapter);

	return err;
}


static int
vmxnet3_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info,
		  void *rules)
{
	struct vmxnet3_adapter *adapter = netdev_priv(netdev);
	switch (info->cmd) {
	case ETHTOOL_GRXRINGS:
		info->data = adapter->num_rx_queues;
		return 0;
	}
	return -EOPNOTSUPP;
}


static int
vmxnet3_get_rss_indir(struct net_device *netdev,
		      struct ethtool_rxfh_indir *p)
{
	struct vmxnet3_adapter *adapter = netdev_priv(netdev);
	struct UPT1_RSSConf *rssConf = adapter->rss_conf;
	unsigned int n = min_t(unsigned int, p->size, rssConf->indTableSize);

	p->size = rssConf->indTableSize;
	while (n--)
		p->ring_index[n] = rssConf->indTable[n];
	return 0;

}

static int
vmxnet3_set_rss_indir(struct net_device *netdev,
		      const struct ethtool_rxfh_indir *p)
{
	unsigned int i;
	struct vmxnet3_adapter *adapter = netdev_priv(netdev);
	struct UPT1_RSSConf *rssConf = adapter->rss_conf;

	if (p->size != rssConf->indTableSize)
		return -EINVAL;
	for (i = 0; i < rssConf->indTableSize; i++) {
		/*
		 * Return with error code if any of the queue indices
		 * is out of range
		 */
		if (p->ring_index[i] < 0 ||
		    p->ring_index[i] >= adapter->num_rx_queues)
			return -EINVAL;
	}

	for (i = 0; i < rssConf->indTableSize; i++)
		rssConf->indTable[i] = p->ring_index[i];

	VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
			       VMXNET3_CMD_UPDATE_RSSIDT);

	return 0;

}

static struct ethtool_ops vmxnet3_ethtool_ops = {
	.get_settings      = vmxnet3_get_settings,
	.get_drvinfo       = vmxnet3_get_drvinfo,
	.get_regs_len      = vmxnet3_get_regs_len,
	.get_regs          = vmxnet3_get_regs,
	.get_wol           = vmxnet3_get_wol,
	.set_wol           = vmxnet3_set_wol,
	.get_link          = ethtool_op_get_link,
	.get_rx_csum       = vmxnet3_get_rx_csum,
	.set_rx_csum       = vmxnet3_set_rx_csum,
	.get_tx_csum       = ethtool_op_get_tx_csum,
	.set_tx_csum       = ethtool_op_set_tx_hw_csum,
	.get_sg            = ethtool_op_get_sg,
	.set_sg            = ethtool_op_set_sg,
	.get_tso           = ethtool_op_get_tso,
	.set_tso           = ethtool_op_set_tso,
	.get_strings       = vmxnet3_get_strings,
	.get_flags	   = ethtool_op_get_flags,
	.set_flags	   = vmxnet3_set_flags,
	.get_sset_count	   = vmxnet3_get_sset_count,
	.get_ethtool_stats = vmxnet3_get_ethtool_stats,
	.get_ringparam     = vmxnet3_get_ringparam,
	.set_ringparam     = vmxnet3_set_ringparam,
	.get_rxnfc         = vmxnet3_get_rxnfc,
	.get_rxfh_indir    = vmxnet3_get_rss_indir,
	.set_rxfh_indir    = vmxnet3_set_rss_indir,
};

void vmxnet3_set_ethtool_ops(struct net_device *netdev)
{
	SET_ETHTOOL_OPS(netdev, &vmxnet3_ethtool_ops);
}
Commit	Line	Data
d1a890fa SB	1	/*
	2	* Linux driver for VMware's vmxnet3 ethernet NIC.
	3	*
	4	* Copyright (C) 2008-2009, VMware, Inc. All Rights Reserved.
	5	*
	6	* This program is free software; you can redistribute it and/or modify it
	7	* under the terms of the GNU General Public License as published by the
	8	* Free Software Foundation; version 2 of the License and no later version.
	9	*
	10	* This program is distributed in the hope that it will be useful, but
	11	* WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
	13	* NON INFRINGEMENT. See the GNU General Public License for more
	14	* details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	19	*
	20	* The full GNU General Public License is included in this distribution in
	21	* the file called "COPYING".
	22	*
	23	* Maintained by: Shreyas Bhatewara <pv-drivers@vmware.com>
	24	*
	25	*/
	26
	27
	28	#include "vmxnet3_int.h"
	29
	30	struct vmxnet3_stat_desc {
	31	char desc[ETH_GSTRING_LEN];
	32	int offset;
	33	};
	34
	35
	36	static u32
	37	vmxnet3_get_rx_csum(struct net_device *netdev)
	38	{
	39	struct vmxnet3_adapter *adapter = netdev_priv(netdev);
	40	return adapter->rxcsum;
	41	}
	42
	43
	44	static int
	45	vmxnet3_set_rx_csum(struct net_device *netdev, u32 val)
	46	{
	47	struct vmxnet3_adapter *adapter = netdev_priv(netdev);
	48
	49	if (adapter->rxcsum != val) {
	50	adapter->rxcsum = val;
	51	if (netif_running(netdev)) {
	52	if (val)
3843e515 HH	53	adapter->shared->devRead.misc.uptFeatures \|=
3843e515 HH	54	UPT1_F_RXCSUM;
d1a890fa	55	else
3843e515 HH	56	adapter->shared->devRead.misc.uptFeatures &=
3843e515 HH	57	~UPT1_F_RXCSUM;
d1a890fa SB	58
	59	VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
	60	VMXNET3_CMD_UPDATE_FEATURE);
	61	}
	62	}
	63	return 0;
	64	}
	65
	66
	67	/* per tq stats maintained by the device */
	68	static const struct vmxnet3_stat_desc
	69	vmxnet3_tq_dev_stats[] = {
	70	/* description, offset */
	71	{ "TSO pkts tx", offsetof(struct UPT1_TxStats, TSOPktsTxOK) },
	72	{ "TSO bytes tx", offsetof(struct UPT1_TxStats, TSOBytesTxOK) },
	73	{ "ucast pkts tx", offsetof(struct UPT1_TxStats, ucastPktsTxOK) },
	74	{ "ucast bytes tx", offsetof(struct UPT1_TxStats, ucastBytesTxOK) },
	75	{ "mcast pkts tx", offsetof(struct UPT1_TxStats, mcastPktsTxOK) },
	76	{ "mcast bytes tx", offsetof(struct UPT1_TxStats, mcastBytesTxOK) },
	77	{ "bcast pkts tx", offsetof(struct UPT1_TxStats, bcastPktsTxOK) },
	78	{ "bcast bytes tx", offsetof(struct UPT1_TxStats, bcastBytesTxOK) },
	79	{ "pkts tx err", offsetof(struct UPT1_TxStats, pktsTxError) },
	80	{ "pkts tx discard", offsetof(struct UPT1_TxStats, pktsTxDiscard) },
	81	};
	82
	83	/* per tq stats maintained by the driver */
	84	static const struct vmxnet3_stat_desc
	85	vmxnet3_tq_driver_stats[] = {
	86	/* description, offset */
	87	{"drv dropped tx total", offsetof(struct vmxnet3_tq_driver_stats,
	88	drop_total) },
	89	{ " too many frags", offsetof(struct vmxnet3_tq_driver_stats,
	90	drop_too_many_frags) },
	91	{ " giant hdr", offsetof(struct vmxnet3_tq_driver_stats,
	92	drop_oversized_hdr) },
	93	{ " hdr err", offsetof(struct vmxnet3_tq_driver_stats,
	94	drop_hdr_inspect_err) },
	95	{ " tso", offsetof(struct vmxnet3_tq_driver_stats,
	96	drop_tso) },
	97	{ "ring full", offsetof(struct vmxnet3_tq_driver_stats,
	98	tx_ring_full) },
	99	{ "pkts linearized", offsetof(struct vmxnet3_tq_driver_stats,
	100	linearized) },
	101	{ "hdr cloned", offsetof(struct vmxnet3_tq_driver_stats,
	102	copy_skb_header) },
	103	{ "giant hdr", offsetof(struct vmxnet3_tq_driver_stats,
	104	oversized_hdr) },
	105	};
	106
	107	/* per rq stats maintained by the device */
	108	static const struct vmxnet3_stat_desc
	109	vmxnet3_rq_dev_stats[] = {
	110	{ "LRO pkts rx", offsetof(struct UPT1_RxStats, LROPktsRxOK) },
	111	{ "LRO byte rx", offsetof(struct UPT1_RxStats, LROBytesRxOK) },
	112	{ "ucast pkts rx", offsetof(struct UPT1_RxStats, ucastPktsRxOK) },
	113	{ "ucast bytes rx", offsetof(struct UPT1_RxStats, ucastBytesRxOK) },
	114	{ "mcast pkts rx", offsetof(struct UPT1_RxStats, mcastPktsRxOK) },
	115	{ "mcast bytes rx", offsetof(struct UPT1_RxStats, mcastBytesRxOK) },
	116	{ "bcast pkts rx", offsetof(struct UPT1_RxStats, bcastPktsRxOK) },
	117	{ "bcast bytes rx", offsetof(struct UPT1_RxStats, bcastBytesRxOK) },
	118	{ "pkts rx out of buf", offsetof(struct UPT1_RxStats, pktsRxOutOfBuf) },
	119	{ "pkts rx err", offsetof(struct UPT1_RxStats, pktsRxError) },
	120	};
	121
122	/* per rq stats maintained by the driver */
123	static const struct vmxnet3_stat_desc
124	vmxnet3_rq_driver_stats[] = {
125	/* description, offset */
126	{ "drv dropped rx total", offsetof(struct vmxnet3_rq_driver_stats,
127	drop_total) },
128	{ " err", offsetof(struct vmxnet3_rq_driver_stats,
129	drop_err) },
130	{ " fcs", offsetof(struct vmxnet3_rq_driver_stats,
131	drop_fcs) },
132	{ "rx buf alloc fail", offsetof(struct vmxnet3_rq_driver_stats,
133	rx_buf_alloc_failure) },
134	};
135
136	/* gloabl stats maintained by the driver */
137	static const struct vmxnet3_stat_desc
138	vmxnet3_global_stats[] = {
139	/* description, offset */
140	{ "tx timeout count", offsetof(struct vmxnet3_adapter,
141	tx_timeout_count) }
142	};
143
144
145	struct net_device_stats *
146	vmxnet3_get_stats(struct net_device *netdev)
147	{
148	struct vmxnet3_adapter *adapter;
149	struct vmxnet3_tq_driver_stats *drvTxStats;
150	struct vmxnet3_rq_driver_stats *drvRxStats;
151	struct UPT1_TxStats *devTxStats;
152	struct UPT1_RxStats *devRxStats;
153	struct net_device_stats *net_stats = &netdev->stats;
09c5088e	154	int i;
d1a890fa SB	155
	156	adapter = netdev_priv(netdev);
	157
	158	/* Collect the dev stats into the shared area */
	159	VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
	160
d1a890fa	161	memset(net_stats, 0, sizeof(*net_stats));
09c5088e SB	162	for (i = 0; i < adapter->num_tx_queues; i++) {
	163	devTxStats = &adapter->tqd_start[i].stats;
	164	drvTxStats = &adapter->tx_queue[i].stats;
	165	net_stats->tx_packets += devTxStats->ucastPktsTxOK +
	166	devTxStats->mcastPktsTxOK +
	167	devTxStats->bcastPktsTxOK;
	168	net_stats->tx_bytes += devTxStats->ucastBytesTxOK +
	169	devTxStats->mcastBytesTxOK +
	170	devTxStats->bcastBytesTxOK;
	171	net_stats->tx_errors += devTxStats->pktsTxError;
	172	net_stats->tx_dropped += drvTxStats->drop_total;
	173	}
d1a890fa	174
09c5088e SB	175	for (i = 0; i < adapter->num_rx_queues; i++) {
	176	devRxStats = &adapter->rqd_start[i].stats;
	177	drvRxStats = &adapter->rx_queue[i].stats;
	178	net_stats->rx_packets += devRxStats->ucastPktsRxOK +
	179	devRxStats->mcastPktsRxOK +
	180	devRxStats->bcastPktsRxOK;
d1a890fa	181
09c5088e SB	182	net_stats->rx_bytes += devRxStats->ucastBytesRxOK +
	183	devRxStats->mcastBytesRxOK +
	184	devRxStats->bcastBytesRxOK;
d1a890fa	185
09c5088e SB	186	net_stats->rx_errors += devRxStats->pktsRxError;
	187	net_stats->rx_dropped += drvRxStats->drop_total;
	188	net_stats->multicast += devRxStats->mcastPktsRxOK;
	189	}
d1a890fa SB	190	return net_stats;
	191	}
	192
	193	static int
	194	vmxnet3_get_sset_count(struct net_device *netdev, int sset)
	195	{
	196	switch (sset) {
	197	case ETH_SS_STATS:
	198	return ARRAY_SIZE(vmxnet3_tq_dev_stats) +
	199	ARRAY_SIZE(vmxnet3_tq_driver_stats) +
	200	ARRAY_SIZE(vmxnet3_rq_dev_stats) +
	201	ARRAY_SIZE(vmxnet3_rq_driver_stats) +
	202	ARRAY_SIZE(vmxnet3_global_stats);
	203	default:
	204	return -EOPNOTSUPP;
	205	}
	206	}
	207
	208
	209	static int
	210	vmxnet3_get_regs_len(struct net_device *netdev)
	211	{
	212	return 20 * sizeof(u32);
	213	}
	214
	215
	216	static void
	217	vmxnet3_get_drvinfo(struct net_device netdev, struct ethtool_drvinfo drvinfo)
	218	{
	219	struct vmxnet3_adapter *adapter = netdev_priv(netdev);
	220
	221	strlcpy(drvinfo->driver, vmxnet3_driver_name, sizeof(drvinfo->driver));
	222	drvinfo->driver[sizeof(drvinfo->driver) - 1] = '\0';
	223
	224	strlcpy(drvinfo->version, VMXNET3_DRIVER_VERSION_REPORT,
	225	sizeof(drvinfo->version));
	226	drvinfo->driver[sizeof(drvinfo->version) - 1] = '\0';
	227
	228	strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version));
	229	drvinfo->fw_version[sizeof(drvinfo->fw_version) - 1] = '\0';
	230
	231	strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
	232	ETHTOOL_BUSINFO_LEN);
	233	drvinfo->n_stats = vmxnet3_get_sset_count(netdev, ETH_SS_STATS);
	234	drvinfo->testinfo_len = 0;
	235	drvinfo->eedump_len = 0;
	236	drvinfo->regdump_len = vmxnet3_get_regs_len(netdev);
	237	}
	238
	239
	240	static void
	241	vmxnet3_get_strings(struct net_device netdev, u32 stringset, u8 buf)
	242	{
	243	if (stringset == ETH_SS_STATS) {
	244	int i;
	245
	246	for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++) {
	247	memcpy(buf, vmxnet3_tq_dev_stats[i].desc,
	248	ETH_GSTRING_LEN);
	249	buf += ETH_GSTRING_LEN;
	250	}
	251	for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats); i++) {
	252	memcpy(buf, vmxnet3_tq_driver_stats[i].desc,
	253	ETH_GSTRING_LEN);
254	buf += ETH_GSTRING_LEN;
255	}
256	for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++) {
257	memcpy(buf, vmxnet3_rq_dev_stats[i].desc,
258	ETH_GSTRING_LEN);
259	buf += ETH_GSTRING_LEN;
260	}
261	for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats); i++) {
262	memcpy(buf, vmxnet3_rq_driver_stats[i].desc,
263	ETH_GSTRING_LEN);
264	buf += ETH_GSTRING_LEN;
265	}
266	for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++) {
267	memcpy(buf, vmxnet3_global_stats[i].desc,
268	ETH_GSTRING_LEN);
269	buf += ETH_GSTRING_LEN;
270	}
271	}
272	}
273
d1a890fa	274	static int
d92be4b1 SG	275	vmxnet3_set_flags(struct net_device *netdev, u32 data)
d92be4b1 SG	276	{
d1a890fa SB	277	struct vmxnet3_adapter *adapter = netdev_priv(netdev);
	278	u8 lro_requested = (data & ETH_FLAG_LRO) == 0 ? 0 : 1;
	279	u8 lro_present = (netdev->features & NETIF_F_LRO) == 0 ? 0 : 1;
	280
d92be4b1 SG	281	if (data & ~ETH_FLAG_LRO)
	282	return -EOPNOTSUPP;
	283
d1a890fa SB	284	if (lro_requested ^ lro_present) {
	285	/* toggle the LRO feature*/
	286	netdev->features ^= NETIF_F_LRO;
	287
	288	/* update harware LRO capability accordingly */
	289	if (lro_requested)
ca802447	290	adapter->shared->devRead.misc.uptFeatures \|=
3843e515	291	UPT1_F_LRO;
d1a890fa SB	292	else
d1a890fa SB	293	adapter->shared->devRead.misc.uptFeatures &=
3843e515	294	~UPT1_F_LRO;
d1a890fa SB	295	VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
	296	VMXNET3_CMD_UPDATE_FEATURE);
	297	}
	298	return 0;
	299	}
	300
	301	static void
	302	vmxnet3_get_ethtool_stats(struct net_device *netdev,
	303	struct ethtool_stats stats, u64 buf)
	304	{
	305	struct vmxnet3_adapter *adapter = netdev_priv(netdev);
	306	u8 *base;
	307	int i;
09c5088e	308	int j = 0;
d1a890fa SB	309
	310	VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
	311
	312	/* this does assume each counter is 64-bit wide */
09c5088e	313	/* TODO change this for multiple queues */
d1a890fa	314
09c5088e	315	base = (u8 *)&adapter->tqd_start[j].stats;
d1a890fa SB	316	for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++)
	317	buf++ = (u64 *)(base + vmxnet3_tq_dev_stats[i].offset);
	318
09c5088e	319	base = (u8 *)&adapter->tx_queue[j].stats;
d1a890fa SB	320	for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats); i++)
	321	buf++ = (u64 *)(base + vmxnet3_tq_driver_stats[i].offset);
	322
09c5088e	323	base = (u8 *)&adapter->rqd_start[j].stats;
d1a890fa SB	324	for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++)
	325	buf++ = (u64 *)(base + vmxnet3_rq_dev_stats[i].offset);
	326
09c5088e	327	base = (u8 *)&adapter->rx_queue[j].stats;
d1a890fa SB	328	for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats); i++)
	329	buf++ = (u64 *)(base + vmxnet3_rq_driver_stats[i].offset);
	330
	331	base = (u8 *)adapter;
	332	for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++)
	333	buf++ = (u64 *)(base + vmxnet3_global_stats[i].offset);
	334	}
	335
	336
	337	static void
	338	vmxnet3_get_regs(struct net_device netdev, struct ethtool_regs regs, void *p)
	339	{
	340	struct vmxnet3_adapter *adapter = netdev_priv(netdev);
	341	u32 *buf = p;
09c5088e	342	int i = 0;
d1a890fa SB	343
	344	memset(p, 0, vmxnet3_get_regs_len(netdev));
	345
	346	regs->version = 1;
	347
	348	/* Update vmxnet3_get_regs_len if we want to dump more registers */
	349
	350	/* make each ring use multiple of 16 bytes */
09c5088e SB	351	/* TODO change this for multiple queues */
	352	buf[0] = adapter->tx_queue[i].tx_ring.next2fill;
	353	buf[1] = adapter->tx_queue[i].tx_ring.next2comp;
	354	buf[2] = adapter->tx_queue[i].tx_ring.gen;
d1a890fa SB	355	buf[3] = 0;
d1a890fa SB	356
09c5088e SB	357	buf[4] = adapter->tx_queue[i].comp_ring.next2proc;
	358	buf[5] = adapter->tx_queue[i].comp_ring.gen;
	359	buf[6] = adapter->tx_queue[i].stopped;
d1a890fa SB	360	buf[7] = 0;
d1a890fa SB	361
09c5088e SB	362	buf[8] = adapter->rx_queue[i].rx_ring[0].next2fill;
	363	buf[9] = adapter->rx_queue[i].rx_ring[0].next2comp;
	364	buf[10] = adapter->rx_queue[i].rx_ring[0].gen;
d1a890fa SB	365	buf[11] = 0;
d1a890fa SB	366
09c5088e SB	367	buf[12] = adapter->rx_queue[i].rx_ring[1].next2fill;
	368	buf[13] = adapter->rx_queue[i].rx_ring[1].next2comp;
	369	buf[14] = adapter->rx_queue[i].rx_ring[1].gen;
d1a890fa SB	370	buf[15] = 0;
d1a890fa SB	371
09c5088e SB	372	buf[16] = adapter->rx_queue[i].comp_ring.next2proc;
09c5088e SB	373	buf[17] = adapter->rx_queue[i].comp_ring.gen;
d1a890fa SB	374	buf[18] = 0;
	375	buf[19] = 0;
	376	}
	377
	378
	379	static void
	380	vmxnet3_get_wol(struct net_device netdev, struct ethtool_wolinfo wol)
	381	{
	382	struct vmxnet3_adapter *adapter = netdev_priv(netdev);
	383
	384	wol->supported = WAKE_UCAST \| WAKE_ARP \| WAKE_MAGIC;
	385	wol->wolopts = adapter->wol;
	386	}
	387
	388
	389	static int
	390	vmxnet3_set_wol(struct net_device netdev, struct ethtool_wolinfo wol)
	391	{
	392	struct vmxnet3_adapter *adapter = netdev_priv(netdev);
	393
	394	if (wol->wolopts & (WAKE_PHY \| WAKE_MCAST \| WAKE_BCAST \|
	395	WAKE_MAGICSECURE)) {
	396	return -EOPNOTSUPP;
	397	}
	398
	399	adapter->wol = wol->wolopts;
	400
	401	device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
	402
	403	return 0;
	404	}
	405
	406
	407	static int
	408	vmxnet3_get_settings(struct net_device netdev, struct ethtool_cmd ecmd)
	409	{
	410	struct vmxnet3_adapter *adapter = netdev_priv(netdev);
	411
	412	ecmd->supported = SUPPORTED_10000baseT_Full \| SUPPORTED_1000baseT_Full \|
	413	SUPPORTED_TP;
	414	ecmd->advertising = ADVERTISED_TP;
	415	ecmd->port = PORT_TP;
	416	ecmd->transceiver = XCVR_INTERNAL;
	417
	418	if (adapter->link_speed) {
	419	ecmd->speed = adapter->link_speed;
	420	ecmd->duplex = DUPLEX_FULL;
	421	} else {
	422	ecmd->speed = -1;
	423	ecmd->duplex = -1;
	424	}
	425	return 0;
	426	}
	427
	428
	429	static void
	430	vmxnet3_get_ringparam(struct net_device *netdev,
	431	struct ethtool_ringparam *param)
	432	{
	433	struct vmxnet3_adapter *adapter = netdev_priv(netdev);
	434
	435	param->rx_max_pending = VMXNET3_RX_RING_MAX_SIZE;
	436	param->tx_max_pending = VMXNET3_TX_RING_MAX_SIZE;
	437	param->rx_mini_max_pending = 0;
438	param->rx_jumbo_max_pending = 0;
439
09c5088e SB	440	param->rx_pending = adapter->rx_queue[0].rx_ring[0].size *
	441	adapter->num_rx_queues;
	442	param->tx_pending = adapter->tx_queue[0].tx_ring.size *
	443	adapter->num_tx_queues;
d1a890fa SB	444	param->rx_mini_pending = 0;
	445	param->rx_jumbo_pending = 0;
	446	}
	447
	448
	449	static int
	450	vmxnet3_set_ringparam(struct net_device *netdev,
	451	struct ethtool_ringparam *param)
	452	{
	453	struct vmxnet3_adapter *adapter = netdev_priv(netdev);
	454	u32 new_tx_ring_size, new_rx_ring_size;
	455	u32 sz;
	456	int err = 0;
	457
	458	if (param->tx_pending == 0 \|\| param->tx_pending >
	459	VMXNET3_TX_RING_MAX_SIZE)
	460	return -EINVAL;
	461
	462	if (param->rx_pending == 0 \|\| param->rx_pending >
	463	VMXNET3_RX_RING_MAX_SIZE)
	464	return -EINVAL;
	465
	466
	467	/* round it up to a multiple of VMXNET3_RING_SIZE_ALIGN */
	468	new_tx_ring_size = (param->tx_pending + VMXNET3_RING_SIZE_MASK) &
	469	~VMXNET3_RING_SIZE_MASK;
	470	new_tx_ring_size = min_t(u32, new_tx_ring_size,
	471	VMXNET3_TX_RING_MAX_SIZE);
	472	if (new_tx_ring_size > VMXNET3_TX_RING_MAX_SIZE \|\| (new_tx_ring_size %
	473	VMXNET3_RING_SIZE_ALIGN) != 0)
	474	return -EINVAL;
	475
	476	/* ring0 has to be a multiple of
	477	* rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN
	478	*/
	479	sz = adapter->rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN;
	480	new_rx_ring_size = (param->rx_pending + sz - 1) / sz * sz;
	481	new_rx_ring_size = min_t(u32, new_rx_ring_size,
	482	VMXNET3_RX_RING_MAX_SIZE / sz * sz);
	483	if (new_rx_ring_size > VMXNET3_RX_RING_MAX_SIZE \|\| (new_rx_ring_size %
	484	sz) != 0)
	485	return -EINVAL;
	486
09c5088e SB	487	if (new_tx_ring_size == adapter->tx_queue[0].tx_ring.size &&
09c5088e SB	488	new_rx_ring_size == adapter->rx_queue[0].rx_ring[0].size) {
d1a890fa SB	489	return 0;
	490	}
	491
	492	/*
	493	* Reset_work may be in the middle of resetting the device, wait for its
	494	* completion.
	495	*/
	496	while (test_and_set_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state))
	497	msleep(1);
	498
	499	if (netif_running(netdev)) {
	500	vmxnet3_quiesce_dev(adapter);
	501	vmxnet3_reset_dev(adapter);
	502
	503	/* recreate the rx queue and the tx queue based on the
	504	* new sizes */
09c5088e SB	505	vmxnet3_tq_destroy_all(adapter);
09c5088e SB	506	vmxnet3_rq_destroy_all(adapter);
d1a890fa SB	507
	508	err = vmxnet3_create_queues(adapter, new_tx_ring_size,
	509	new_rx_ring_size, VMXNET3_DEF_RX_RING_SIZE);
09c5088e	510
d1a890fa SB	511	if (err) {
	512	/* failed, most likely because of OOM, try default
	513	* size */
	514	printk(KERN_ERR "%s: failed to apply new sizes, try the"
	515	" default ones\n", netdev->name);
	516	err = vmxnet3_create_queues(adapter,
	517	VMXNET3_DEF_TX_RING_SIZE,
	518	VMXNET3_DEF_RX_RING_SIZE,
	519	VMXNET3_DEF_RX_RING_SIZE);
	520	if (err) {
	521	printk(KERN_ERR "%s: failed to create queues "
	522	"with default sizes. Closing it\n",
	523	netdev->name);
	524	goto out;
	525	}
	526	}
	527
	528	err = vmxnet3_activate_dev(adapter);
	529	if (err)
	530	printk(KERN_ERR "%s: failed to re-activate, error %d."
	531	" Closing it\n", netdev->name, err);
	532	}
	533
	534	out:
	535	clear_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state);
	536	if (err)
	537	vmxnet3_force_close(adapter);
	538
	539	return err;
	540	}
	541
	542
09c5088e SB	543	static int
	544	vmxnet3_get_rxnfc(struct net_device netdev, struct ethtool_rxnfc info,
	545	void *rules)
	546	{
	547	struct vmxnet3_adapter *adapter = netdev_priv(netdev);
	548	switch (info->cmd) {
	549	case ETHTOOL_GRXRINGS:
	550	info->data = adapter->num_rx_queues;
	551	return 0;
	552	}
	553	return -EOPNOTSUPP;
	554	}
	555
	556
	557	static int
	558	vmxnet3_get_rss_indir(struct net_device *netdev,
	559	struct ethtool_rxfh_indir *p)
	560	{
	561	struct vmxnet3_adapter *adapter = netdev_priv(netdev);
	562	struct UPT1_RSSConf *rssConf = adapter->rss_conf;
	563	unsigned int n = min_t(unsigned int, p->size, rssConf->indTableSize);
	564
	565	p->size = rssConf->indTableSize;
	566	while (n--)
	567	p->ring_index[n] = rssConf->indTable[n];
	568	return 0;
	569
	570	}
	571
	572	static int
	573	vmxnet3_set_rss_indir(struct net_device *netdev,
	574	const struct ethtool_rxfh_indir *p)
	575	{
	576	unsigned int i;
	577	struct vmxnet3_adapter *adapter = netdev_priv(netdev);
	578	struct UPT1_RSSConf *rssConf = adapter->rss_conf;
	579
	580	if (p->size != rssConf->indTableSize)
	581	return -EINVAL;
	582	for (i = 0; i < rssConf->indTableSize; i++) {
	583	/*
	584	* Return with error code if any of the queue indices
	585	* is out of range
	586	*/
	587	if (p->ring_index[i] < 0 \|\|
	588	p->ring_index[i] >= adapter->num_rx_queues)
	589	return -EINVAL;
	590	}
	591
	592	for (i = 0; i < rssConf->indTableSize; i++)
	593	rssConf->indTable[i] = p->ring_index[i];
	594
	595	VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
	596	VMXNET3_CMD_UPDATE_RSSIDT);
	597
	598	return 0;
	599
	600	}
	601
d1a890fa SB	602	static struct ethtool_ops vmxnet3_ethtool_ops = {
	603	.get_settings = vmxnet3_get_settings,
	604	.get_drvinfo = vmxnet3_get_drvinfo,
	605	.get_regs_len = vmxnet3_get_regs_len,
	606	.get_regs = vmxnet3_get_regs,
	607	.get_wol = vmxnet3_get_wol,
	608	.set_wol = vmxnet3_set_wol,
	609	.get_link = ethtool_op_get_link,
	610	.get_rx_csum = vmxnet3_get_rx_csum,
	611	.set_rx_csum = vmxnet3_set_rx_csum,
	612	.get_tx_csum = ethtool_op_get_tx_csum,
	613	.set_tx_csum = ethtool_op_set_tx_hw_csum,
	614	.get_sg = ethtool_op_get_sg,
	615	.set_sg = ethtool_op_set_sg,
	616	.get_tso = ethtool_op_get_tso,
	617	.set_tso = ethtool_op_set_tso,
	618	.get_strings = vmxnet3_get_strings,
cbf2d604	619	.get_flags = ethtool_op_get_flags,
d1a890fa SB	620	.set_flags = vmxnet3_set_flags,
	621	.get_sset_count = vmxnet3_get_sset_count,
	622	.get_ethtool_stats = vmxnet3_get_ethtool_stats,
	623	.get_ringparam = vmxnet3_get_ringparam,
	624	.set_ringparam = vmxnet3_set_ringparam,
09c5088e SB	625	.get_rxnfc = vmxnet3_get_rxnfc,
	626	.get_rxfh_indir = vmxnet3_get_rss_indir,
	627	.set_rxfh_indir = vmxnet3_set_rss_indir,
d1a890fa SB	628	};
	629
	630	void vmxnet3_set_ethtool_ops(struct net_device *netdev)
	631	{
	632	SET_ETHTOOL_OPS(netdev, &vmxnet3_ethtool_ops);
	633	}