[linux-block.git] / drivers / net / mlx4 / en_params.c

/*
 * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 */

#include <linux/kernel.h>
#include <linux/ethtool.h>
#include <linux/netdevice.h>

#include "mlx4_en.h"
#include "en_port.h"

#define MLX4_EN_PARM_INT(X, def_val, desc) \
	static unsigned int X = def_val;\
	module_param(X , uint, 0444); \
	MODULE_PARM_DESC(X, desc);


/*
 * Device scope module parameters
 */


/* Use a XOR rathern than Toeplitz hash function for RSS */
MLX4_EN_PARM_INT(rss_xor, 0, "Use XOR hash function for RSS");

/* RSS hash type mask - default to <saddr, daddr, sport, dport> */
MLX4_EN_PARM_INT(rss_mask, 0xf, "RSS hash type bitmask");

/* Number of LRO sessions per Rx ring (rounded up to a power of two) */
MLX4_EN_PARM_INT(num_lro, MLX4_EN_MAX_LRO_DESCRIPTORS,
		 "Number of LRO sessions per ring or disabled (0)");

/* Priority pausing */
MLX4_EN_PARM_INT(pptx, MLX4_EN_DEF_TX_PAUSE,
		 "Pause policy on TX: 0 never generate pause frames "
		 "1 generate pause frames according to RX buffer threshold");
MLX4_EN_PARM_INT(pprx, MLX4_EN_DEF_RX_PAUSE,
		 "Pause policy on RX: 0 ignore received pause frames "
		 "1 respect received pause frames");
MLX4_EN_PARM_INT(pfctx, 0, "Priority based Flow Control policy on TX[7:0]."
			   " Per priority bit mask");
MLX4_EN_PARM_INT(pfcrx, 0, "Priority based Flow Control policy on RX[7:0]."
			   " Per priority bit mask");

/* Interrupt moderation tunning */
MLX4_EN_PARM_INT(rx_moder_cnt, MLX4_EN_AUTO_CONF,
	       "Max coalesced descriptors for Rx interrupt moderation");
MLX4_EN_PARM_INT(rx_moder_time, MLX4_EN_AUTO_CONF,
	       "Timeout following last packet for Rx interrupt moderation");
MLX4_EN_PARM_INT(auto_moder, 1, "Enable dynamic interrupt moderation");

MLX4_EN_PARM_INT(rx_ring_num1, 0, "Number or Rx rings for port 1 (0 = #cores)");
MLX4_EN_PARM_INT(rx_ring_num2, 0, "Number or Rx rings for port 2 (0 = #cores)");

MLX4_EN_PARM_INT(tx_ring_size1, MLX4_EN_AUTO_CONF, "Tx ring size for port 1");
MLX4_EN_PARM_INT(tx_ring_size2, MLX4_EN_AUTO_CONF, "Tx ring size for port 2");
MLX4_EN_PARM_INT(rx_ring_size1, MLX4_EN_AUTO_CONF, "Rx ring size for port 1");
MLX4_EN_PARM_INT(rx_ring_size2, MLX4_EN_AUTO_CONF, "Rx ring size for port 2");


int mlx4_en_get_profile(struct mlx4_en_dev *mdev)
{
	struct mlx4_en_profile *params = &mdev->profile;

	params->rx_moder_cnt = min_t(int, rx_moder_cnt, MLX4_EN_AUTO_CONF);
	params->rx_moder_time = min_t(int, rx_moder_time, MLX4_EN_AUTO_CONF);
	params->auto_moder = auto_moder;
	params->rss_xor = (rss_xor != 0);
	params->rss_mask = rss_mask & 0x1f;
	params->num_lro = min_t(int, num_lro , MLX4_EN_MAX_LRO_DESCRIPTORS);
	params->rx_pause = pprx;
	params->rx_ppp = pfcrx;
	params->tx_pause = pptx;
	params->tx_ppp = pfctx;
	if (params->rx_ppp || params->tx_ppp) {
		params->prof[1].tx_ring_num = MLX4_EN_TX_RING_NUM;
		params->prof[2].tx_ring_num = MLX4_EN_TX_RING_NUM;
	} else {
		params->prof[1].tx_ring_num = 1;
		params->prof[2].tx_ring_num = 1;
	}
	params->prof[1].rx_ring_num = min_t(int, rx_ring_num1, MAX_RX_RINGS);
	params->prof[2].rx_ring_num = min_t(int, rx_ring_num2, MAX_RX_RINGS);

	if (tx_ring_size1 == MLX4_EN_AUTO_CONF)
		tx_ring_size1 = MLX4_EN_DEF_TX_RING_SIZE;
	params->prof[1].tx_ring_size =
		(tx_ring_size1 < MLX4_EN_MIN_TX_SIZE) ?
		 MLX4_EN_MIN_TX_SIZE : roundup_pow_of_two(tx_ring_size1);

	if (tx_ring_size2 == MLX4_EN_AUTO_CONF)
		tx_ring_size2 = MLX4_EN_DEF_TX_RING_SIZE;
	params->prof[2].tx_ring_size =
		(tx_ring_size2 < MLX4_EN_MIN_TX_SIZE) ?
		 MLX4_EN_MIN_TX_SIZE : roundup_pow_of_two(tx_ring_size2);

	if (rx_ring_size1 == MLX4_EN_AUTO_CONF)
		rx_ring_size1 = MLX4_EN_DEF_RX_RING_SIZE;
	params->prof[1].rx_ring_size =
		(rx_ring_size1 < MLX4_EN_MIN_RX_SIZE) ?
		 MLX4_EN_MIN_RX_SIZE : roundup_pow_of_two(rx_ring_size1);

	if (rx_ring_size2 == MLX4_EN_AUTO_CONF)
		rx_ring_size2 = MLX4_EN_DEF_RX_RING_SIZE;
	params->prof[2].rx_ring_size =
		(rx_ring_size2 < MLX4_EN_MIN_RX_SIZE) ?
		 MLX4_EN_MIN_RX_SIZE : roundup_pow_of_two(rx_ring_size2);
	return 0;
}


/*
 * Ethtool support
 */

static void mlx4_en_update_lro_stats(struct mlx4_en_priv *priv)
{
	int i;

	priv->port_stats.lro_aggregated = 0;
	priv->port_stats.lro_flushed = 0;
	priv->port_stats.lro_no_desc = 0;

	for (i = 0; i < priv->rx_ring_num; i++) {
		priv->port_stats.lro_aggregated += priv->rx_ring[i].lro.stats.aggregated;
		priv->port_stats.lro_flushed += priv->rx_ring[i].lro.stats.flushed;
		priv->port_stats.lro_no_desc += priv->rx_ring[i].lro.stats.no_desc;
	}
}

static void
mlx4_en_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
{
	struct mlx4_en_priv *priv = netdev_priv(dev);
	struct mlx4_en_dev *mdev = priv->mdev;

	sprintf(drvinfo->driver, DRV_NAME " (%s)", mdev->dev->board_id);
	strncpy(drvinfo->version, DRV_VERSION " (" DRV_RELDATE ")", 32);
	sprintf(drvinfo->fw_version, "%d.%d.%d",
		(u16) (mdev->dev->caps.fw_ver >> 32),
		(u16) ((mdev->dev->caps.fw_ver >> 16) & 0xffff),
		(u16) (mdev->dev->caps.fw_ver & 0xffff));
	strncpy(drvinfo->bus_info, pci_name(mdev->dev->pdev), 32);
	drvinfo->n_stats = 0;
	drvinfo->regdump_len = 0;
	drvinfo->eedump_len = 0;
}

static u32 mlx4_en_get_tso(struct net_device *dev)
{
	return (dev->features & NETIF_F_TSO) != 0;
}

static int mlx4_en_set_tso(struct net_device *dev, u32 data)
{
	struct mlx4_en_priv *priv = netdev_priv(dev);

	if (data) {
		if (!priv->mdev->LSO_support)
			return -EPERM;
		dev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
	} else
		dev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6);
	return 0;
}

static u32 mlx4_en_get_rx_csum(struct net_device *dev)
{
	struct mlx4_en_priv *priv = netdev_priv(dev);
	return priv->rx_csum;
}

static int mlx4_en_set_rx_csum(struct net_device *dev, u32 data)
{
	struct mlx4_en_priv *priv = netdev_priv(dev);
	priv->rx_csum = (data != 0);
	return 0;
}

static const char main_strings[][ETH_GSTRING_LEN] = {
	"rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
	"tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
	"rx_length_errors", "rx_over_errors", "rx_crc_errors",
	"rx_frame_errors", "rx_fifo_errors", "rx_missed_errors",
	"tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
	"tx_heartbeat_errors", "tx_window_errors",

	/* port statistics */
	"lro_aggregated", "lro_flushed", "lro_no_desc", "tso_packets",
	"queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_failed",
	"rx_csum_good", "rx_csum_none", "tx_chksum_offload",

	/* packet statistics */
	"broadcast", "rx_prio_0", "rx_prio_1", "rx_prio_2", "rx_prio_3",
	"rx_prio_4", "rx_prio_5", "rx_prio_6", "rx_prio_7", "tx_prio_0",
	"tx_prio_1", "tx_prio_2", "tx_prio_3", "tx_prio_4", "tx_prio_5",
	"tx_prio_6", "tx_prio_7",
};
#define NUM_MAIN_STATS	21
#define NUM_ALL_STATS	(NUM_MAIN_STATS + NUM_PORT_STATS + NUM_PKT_STATS + NUM_PERF_STATS)

static u32 mlx4_en_get_msglevel(struct net_device *dev)
{
	return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable;
}

static void mlx4_en_set_msglevel(struct net_device *dev, u32 val)
{
	((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val;
}

static void mlx4_en_get_wol(struct net_device *netdev,
			    struct ethtool_wolinfo *wol)
{
	wol->supported = 0;
	wol->wolopts = 0;

	return;
}

static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
{
	struct mlx4_en_priv *priv = netdev_priv(dev);

	if (sset != ETH_SS_STATS)
		return -EOPNOTSUPP;

	return NUM_ALL_STATS + (priv->tx_ring_num + priv->rx_ring_num) * 2;
}

static void mlx4_en_get_ethtool_stats(struct net_device *dev,
		struct ethtool_stats *stats, uint64_t *data)
{
	struct mlx4_en_priv *priv = netdev_priv(dev);
	int index = 0;
	int i;

	spin_lock_bh(&priv->stats_lock);

	mlx4_en_update_lro_stats(priv);

	for (i = 0; i < NUM_MAIN_STATS; i++)
		data[index++] = ((unsigned long *) &priv->stats)[i];
	for (i = 0; i < NUM_PORT_STATS; i++)
		data[index++] = ((unsigned long *) &priv->port_stats)[i];
	for (i = 0; i < priv->tx_ring_num; i++) {
		data[index++] = priv->tx_ring[i].packets;
		data[index++] = priv->tx_ring[i].bytes;
	}
	for (i = 0; i < priv->rx_ring_num; i++) {
		data[index++] = priv->rx_ring[i].packets;
		data[index++] = priv->rx_ring[i].bytes;
	}
	for (i = 0; i < NUM_PKT_STATS; i++)
		data[index++] = ((unsigned long *) &priv->pkstats)[i];
	spin_unlock_bh(&priv->stats_lock);

}

static void mlx4_en_get_strings(struct net_device *dev,
				uint32_t stringset, uint8_t *data)
{
	struct mlx4_en_priv *priv = netdev_priv(dev);
	int index = 0;
	int i;

	if (stringset != ETH_SS_STATS)
		return;

	/* Add main counters */
	for (i = 0; i < NUM_MAIN_STATS; i++)
		strcpy(data + (index++) * ETH_GSTRING_LEN, main_strings[i]);
	for (i = 0; i < NUM_PORT_STATS; i++)
		strcpy(data + (index++) * ETH_GSTRING_LEN,
			main_strings[i + NUM_MAIN_STATS]);
	for (i = 0; i < priv->tx_ring_num; i++) {
		sprintf(data + (index++) * ETH_GSTRING_LEN,
			"tx%d_packets", i);
		sprintf(data + (index++) * ETH_GSTRING_LEN,
			"tx%d_bytes", i);
	}
	for (i = 0; i < priv->rx_ring_num; i++) {
		sprintf(data + (index++) * ETH_GSTRING_LEN,
			"rx%d_packets", i);
		sprintf(data + (index++) * ETH_GSTRING_LEN,
			"rx%d_bytes", i);
	}
	for (i = 0; i < NUM_PKT_STATS; i++)
		strcpy(data + (index++) * ETH_GSTRING_LEN,
			main_strings[i + NUM_MAIN_STATS + NUM_PORT_STATS]);
}

static int mlx4_en_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
	cmd->autoneg = AUTONEG_DISABLE;
	cmd->supported = SUPPORTED_10000baseT_Full;
	cmd->advertising = SUPPORTED_10000baseT_Full;
	if (netif_carrier_ok(dev)) {
		cmd->speed = SPEED_10000;
		cmd->duplex = DUPLEX_FULL;
	} else {
		cmd->speed = -1;
		cmd->duplex = -1;
	}
	return 0;
}

static int mlx4_en_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
	if ((cmd->autoneg == AUTONEG_ENABLE) ||
	    (cmd->speed != SPEED_10000) || (cmd->duplex != DUPLEX_FULL))
		return -EINVAL;

	/* Nothing to change */
	return 0;
}

static int mlx4_en_get_coalesce(struct net_device *dev,
			      struct ethtool_coalesce *coal)
{
	struct mlx4_en_priv *priv = netdev_priv(dev);

	coal->tx_coalesce_usecs = 0;
	coal->tx_max_coalesced_frames = 0;
	coal->rx_coalesce_usecs = priv->rx_usecs;
	coal->rx_max_coalesced_frames = priv->rx_frames;

	coal->pkt_rate_low = priv->pkt_rate_low;
	coal->rx_coalesce_usecs_low = priv->rx_usecs_low;
	coal->pkt_rate_high = priv->pkt_rate_high;
	coal->rx_coalesce_usecs_high = priv->rx_usecs_high;
	coal->rate_sample_interval = priv->sample_interval;
	coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal;
	return 0;
}

static int mlx4_en_set_coalesce(struct net_device *dev,
			      struct ethtool_coalesce *coal)
{
	struct mlx4_en_priv *priv = netdev_priv(dev);
	int err, i;

	priv->rx_frames = (coal->rx_max_coalesced_frames ==
			   MLX4_EN_AUTO_CONF) ?
				MLX4_EN_RX_COAL_TARGET /
				priv->dev->mtu + 1 :
				coal->rx_max_coalesced_frames;
	priv->rx_usecs = (coal->rx_coalesce_usecs ==
			  MLX4_EN_AUTO_CONF) ?
				MLX4_EN_RX_COAL_TIME :
				coal->rx_coalesce_usecs;

	/* Set adaptive coalescing params */
	priv->pkt_rate_low = coal->pkt_rate_low;
	priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
	priv->pkt_rate_high = coal->pkt_rate_high;
	priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
	priv->sample_interval = coal->rate_sample_interval;
	priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
	priv->last_moder_time = MLX4_EN_AUTO_CONF;
	if (priv->adaptive_rx_coal)
		return 0;

	for (i = 0; i < priv->rx_ring_num; i++) {
		priv->rx_cq[i].moder_cnt = priv->rx_frames;
		priv->rx_cq[i].moder_time = priv->rx_usecs;
		err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]);
		if (err)
			return err;
	}
	return 0;
}

static int mlx4_en_set_pauseparam(struct net_device *dev,
				struct ethtool_pauseparam *pause)
{
	struct mlx4_en_priv *priv = netdev_priv(dev);
	struct mlx4_en_dev *mdev = priv->mdev;
	int err;

	mdev->profile.tx_pause = pause->tx_pause != 0;
	mdev->profile.rx_pause = pause->rx_pause != 0;
	err = mlx4_SET_PORT_general(mdev->dev, priv->port,
				    priv->rx_skb_size + ETH_FCS_LEN,
				    mdev->profile.tx_pause,
				    mdev->profile.tx_ppp,
				    mdev->profile.rx_pause,
				    mdev->profile.rx_ppp);
	if (err)
		mlx4_err(mdev, "Failed setting pause params to\n");

	return err;
}

static void mlx4_en_get_pauseparam(struct net_device *dev,
				 struct ethtool_pauseparam *pause)
{
	struct mlx4_en_priv *priv = netdev_priv(dev);
	struct mlx4_en_dev *mdev = priv->mdev;

	pause->tx_pause = mdev->profile.tx_pause;
	pause->rx_pause = mdev->profile.rx_pause;
}

static void mlx4_en_get_ringparam(struct net_device *dev,
				  struct ethtool_ringparam *param)
{
	struct mlx4_en_priv *priv = netdev_priv(dev);
	struct mlx4_en_dev *mdev = priv->mdev;

	memset(param, 0, sizeof(*param));
	param->rx_max_pending = mdev->dev->caps.max_rq_sg;
	param->tx_max_pending = mdev->dev->caps.max_sq_sg;
	param->rx_pending = mdev->profile.prof[priv->port].rx_ring_size;
	param->tx_pending = mdev->profile.prof[priv->port].tx_ring_size;
}

const struct ethtool_ops mlx4_en_ethtool_ops = {
	.get_drvinfo = mlx4_en_get_drvinfo,
	.get_settings = mlx4_en_get_settings,
	.set_settings = mlx4_en_set_settings,
#ifdef NETIF_F_TSO
	.get_tso = mlx4_en_get_tso,
	.set_tso = mlx4_en_set_tso,
#endif
	.get_sg = ethtool_op_get_sg,
	.set_sg = ethtool_op_set_sg,
	.get_link = ethtool_op_get_link,
	.get_rx_csum = mlx4_en_get_rx_csum,
	.set_rx_csum = mlx4_en_set_rx_csum,
	.get_tx_csum = ethtool_op_get_tx_csum,
	.set_tx_csum = ethtool_op_set_tx_ipv6_csum,
	.get_strings = mlx4_en_get_strings,
	.get_sset_count = mlx4_en_get_sset_count,
	.get_ethtool_stats = mlx4_en_get_ethtool_stats,
	.get_wol = mlx4_en_get_wol,
	.get_msglevel = mlx4_en_get_msglevel,
	.set_msglevel = mlx4_en_set_msglevel,
	.get_coalesce = mlx4_en_get_coalesce,
	.set_coalesce = mlx4_en_set_coalesce,
	.get_pauseparam = mlx4_en_get_pauseparam,
	.set_pauseparam = mlx4_en_set_pauseparam,
	.get_ringparam = mlx4_en_get_ringparam,
	.get_flags = ethtool_op_get_flags,
	.set_flags = ethtool_op_set_flags,
};
Commit	Line	Data
c27a02cd YP	1	/*
	2	* Copyright (c) 2007 Mellanox Technologies. All rights reserved.
	3	*
	4	* This software is available to you under a choice of one of two
	5	* licenses. You may choose to be licensed under the terms of the GNU
	6	* General Public License (GPL) Version 2, available from the file
	7	* COPYING in the main directory of this source tree, or the
	8	* OpenIB.org BSD license below:
	9	*
	10	* Redistribution and use in source and binary forms, with or
	11	* without modification, are permitted provided that the following
	12	* conditions are met:
	13	*
	14	* - Redistributions of source code must retain the above
	15	* copyright notice, this list of conditions and the following
	16	* disclaimer.
	17	*
	18	* - Redistributions in binary form must reproduce the above
	19	* copyright notice, this list of conditions and the following
	20	* disclaimer in the documentation and/or other materials
	21	* provided with the distribution.
	22	*
	23	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	24	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	25	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	26	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
	27	* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
	28	* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	29	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	30	* SOFTWARE.
	31	*
	32	*/
	33
	34	#include <linux/kernel.h>
	35	#include <linux/ethtool.h>
	36	#include <linux/netdevice.h>
	37
	38	#include "mlx4_en.h"
	39	#include "en_port.h"
	40
	41	#define MLX4_EN_PARM_INT(X, def_val, desc) \
	42	static unsigned int X = def_val;\
	43	module_param(X , uint, 0444); \
	44	MODULE_PARM_DESC(X, desc);
	45
	46
	47	/*
	48	* Device scope module parameters
	49	*/
	50
	51
	52	/* Use a XOR rathern than Toeplitz hash function for RSS */
	53	MLX4_EN_PARM_INT(rss_xor, 0, "Use XOR hash function for RSS");
	54
	55	/* RSS hash type mask - default to <saddr, daddr, sport, dport> */
	56	MLX4_EN_PARM_INT(rss_mask, 0xf, "RSS hash type bitmask");
	57
	58	/* Number of LRO sessions per Rx ring (rounded up to a power of two) */
	59	MLX4_EN_PARM_INT(num_lro, MLX4_EN_MAX_LRO_DESCRIPTORS,
	60	"Number of LRO sessions per ring or disabled (0)");
	61
	62	/* Priority pausing */
	63	MLX4_EN_PARM_INT(pptx, MLX4_EN_DEF_TX_PAUSE,
	64	"Pause policy on TX: 0 never generate pause frames "
65	"1 generate pause frames according to RX buffer threshold");
66	MLX4_EN_PARM_INT(pprx, MLX4_EN_DEF_RX_PAUSE,
67	"Pause policy on RX: 0 ignore received pause frames "
68	"1 respect received pause frames");
69	MLX4_EN_PARM_INT(pfctx, 0, "Priority based Flow Control policy on TX[7:0]."
70	" Per priority bit mask");
71	MLX4_EN_PARM_INT(pfcrx, 0, "Priority based Flow Control policy on RX[7:0]."
72	" Per priority bit mask");
73
74	/* Interrupt moderation tunning */
75	MLX4_EN_PARM_INT(rx_moder_cnt, MLX4_EN_AUTO_CONF,
76	"Max coalesced descriptors for Rx interrupt moderation");
77	MLX4_EN_PARM_INT(rx_moder_time, MLX4_EN_AUTO_CONF,
78	"Timeout following last packet for Rx interrupt moderation");
79	MLX4_EN_PARM_INT(auto_moder, 1, "Enable dynamic interrupt moderation");
80
81	MLX4_EN_PARM_INT(rx_ring_num1, 0, "Number or Rx rings for port 1 (0 = #cores)");
82	MLX4_EN_PARM_INT(rx_ring_num2, 0, "Number or Rx rings for port 2 (0 = #cores)");
83
84	MLX4_EN_PARM_INT(tx_ring_size1, MLX4_EN_AUTO_CONF, "Tx ring size for port 1");
85	MLX4_EN_PARM_INT(tx_ring_size2, MLX4_EN_AUTO_CONF, "Tx ring size for port 2");
86	MLX4_EN_PARM_INT(rx_ring_size1, MLX4_EN_AUTO_CONF, "Rx ring size for port 1");
87	MLX4_EN_PARM_INT(rx_ring_size2, MLX4_EN_AUTO_CONF, "Rx ring size for port 2");
88
89
90	int mlx4_en_get_profile(struct mlx4_en_dev *mdev)
91	{
92	struct mlx4_en_profile *params = &mdev->profile;
93
94	params->rx_moder_cnt = min_t(int, rx_moder_cnt, MLX4_EN_AUTO_CONF);
95	params->rx_moder_time = min_t(int, rx_moder_time, MLX4_EN_AUTO_CONF);
96	params->auto_moder = auto_moder;
97	params->rss_xor = (rss_xor != 0);
98	params->rss_mask = rss_mask & 0x1f;
99	params->num_lro = min_t(int, num_lro , MLX4_EN_MAX_LRO_DESCRIPTORS);
100	params->rx_pause = pprx;
101	params->rx_ppp = pfcrx;
102	params->tx_pause = pptx;
103	params->tx_ppp = pfctx;
104	if (params->rx_ppp \|\| params->tx_ppp) {
105	params->prof[1].tx_ring_num = MLX4_EN_TX_RING_NUM;
106	params->prof[2].tx_ring_num = MLX4_EN_TX_RING_NUM;
107	} else {
108	params->prof[1].tx_ring_num = 1;
109	params->prof[2].tx_ring_num = 1;
110	}
111	params->prof[1].rx_ring_num = min_t(int, rx_ring_num1, MAX_RX_RINGS);
112	params->prof[2].rx_ring_num = min_t(int, rx_ring_num2, MAX_RX_RINGS);
113
114	if (tx_ring_size1 == MLX4_EN_AUTO_CONF)
115	tx_ring_size1 = MLX4_EN_DEF_TX_RING_SIZE;
116	params->prof[1].tx_ring_size =
117	(tx_ring_size1 < MLX4_EN_MIN_TX_SIZE) ?
118	MLX4_EN_MIN_TX_SIZE : roundup_pow_of_two(tx_ring_size1);
119
120	if (tx_ring_size2 == MLX4_EN_AUTO_CONF)
121	tx_ring_size2 = MLX4_EN_DEF_TX_RING_SIZE;
122	params->prof[2].tx_ring_size =
123	(tx_ring_size2 < MLX4_EN_MIN_TX_SIZE) ?
124	MLX4_EN_MIN_TX_SIZE : roundup_pow_of_two(tx_ring_size2);
125
126	if (rx_ring_size1 == MLX4_EN_AUTO_CONF)
127	rx_ring_size1 = MLX4_EN_DEF_RX_RING_SIZE;
128	params->prof[1].rx_ring_size =
129	(rx_ring_size1 < MLX4_EN_MIN_RX_SIZE) ?
130	MLX4_EN_MIN_RX_SIZE : roundup_pow_of_two(rx_ring_size1);
131
132	if (rx_ring_size2 == MLX4_EN_AUTO_CONF)
133	rx_ring_size2 = MLX4_EN_DEF_RX_RING_SIZE;
134	params->prof[2].rx_ring_size =
135	(rx_ring_size2 < MLX4_EN_MIN_RX_SIZE) ?
136	MLX4_EN_MIN_RX_SIZE : roundup_pow_of_two(rx_ring_size2);
137	return 0;
138	}
139
140
141	/*
142	* Ethtool support
143	*/
144
145	static void mlx4_en_update_lro_stats(struct mlx4_en_priv *priv)
146	{
147	int i;
148
149	priv->port_stats.lro_aggregated = 0;
150	priv->port_stats.lro_flushed = 0;
151	priv->port_stats.lro_no_desc = 0;
152
153	for (i = 0; i < priv->rx_ring_num; i++) {
154	priv->port_stats.lro_aggregated += priv->rx_ring[i].lro.stats.aggregated;
155	priv->port_stats.lro_flushed += priv->rx_ring[i].lro.stats.flushed;
156	priv->port_stats.lro_no_desc += priv->rx_ring[i].lro.stats.no_desc;
157	}
158	}
159
160	static void
161	mlx4_en_get_drvinfo(struct net_device dev, struct ethtool_drvinfo drvinfo)
162	{
163	struct mlx4_en_priv *priv = netdev_priv(dev);
164	struct mlx4_en_dev *mdev = priv->mdev;
165
166	sprintf(drvinfo->driver, DRV_NAME " (%s)", mdev->dev->board_id);
167	strncpy(drvinfo->version, DRV_VERSION " (" DRV_RELDATE ")", 32);
168	sprintf(drvinfo->fw_version, "%d.%d.%d",
169	(u16) (mdev->dev->caps.fw_ver >> 32),
170	(u16) ((mdev->dev->caps.fw_ver >> 16) & 0xffff),
171	(u16) (mdev->dev->caps.fw_ver & 0xffff));
172	strncpy(drvinfo->bus_info, pci_name(mdev->dev->pdev), 32);
173	drvinfo->n_stats = 0;
174	drvinfo->regdump_len = 0;
175	drvinfo->eedump_len = 0;
176	}
177
178	static u32 mlx4_en_get_tso(struct net_device *dev)
179	{
180	return (dev->features & NETIF_F_TSO) != 0;
181	}
182
183	static int mlx4_en_set_tso(struct net_device *dev, u32 data)
184	{
185	struct mlx4_en_priv *priv = netdev_priv(dev);
186
187	if (data) {
188	if (!priv->mdev->LSO_support)
189	return -EPERM;
190	dev->features \|= (NETIF_F_TSO \| NETIF_F_TSO6);
191	} else
192	dev->features &= ~(NETIF_F_TSO \| NETIF_F_TSO6);
193	return 0;
194	}
195
196	static u32 mlx4_en_get_rx_csum(struct net_device *dev)
197	{
198	struct mlx4_en_priv *priv = netdev_priv(dev);
199	return priv->rx_csum;
200	}
201
202	static int mlx4_en_set_rx_csum(struct net_device *dev, u32 data)
203	{
204	struct mlx4_en_priv *priv = netdev_priv(dev);
205	priv->rx_csum = (data != 0);
206	return 0;
207	}
208
209	static const char main_strings[][ETH_GSTRING_LEN] = {
210	"rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
211	"tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
212	"rx_length_errors", "rx_over_errors", "rx_crc_errors",
213	"rx_frame_errors", "rx_fifo_errors", "rx_missed_errors",
214	"tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
215	"tx_heartbeat_errors", "tx_window_errors",
216
217	/* port statistics */
218	"lro_aggregated", "lro_flushed", "lro_no_desc", "tso_packets",
219	"queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_failed",
220	"rx_csum_good", "rx_csum_none", "tx_chksum_offload",
221
222	/* packet statistics */
223	"broadcast", "rx_prio_0", "rx_prio_1", "rx_prio_2", "rx_prio_3",
224	"rx_prio_4", "rx_prio_5", "rx_prio_6", "rx_prio_7", "tx_prio_0",
225	"tx_prio_1", "tx_prio_2", "tx_prio_3", "tx_prio_4", "tx_prio_5",
226	"tx_prio_6", "tx_prio_7",
227	};
228	#define NUM_MAIN_STATS 21
229	#define NUM_ALL_STATS (NUM_MAIN_STATS + NUM_PORT_STATS + NUM_PKT_STATS + NUM_PERF_STATS)
230
231	static u32 mlx4_en_get_msglevel(struct net_device *dev)
232	{
233	return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable;
234	}
235
236	static void mlx4_en_set_msglevel(struct net_device *dev, u32 val)
237	{
238	((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val;
239	}
240
241	static void mlx4_en_get_wol(struct net_device *netdev,
242	struct ethtool_wolinfo *wol)
243	{
244	wol->supported = 0;
245	wol->wolopts = 0;
246
247	return;
248	}
249
250	static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
251	{
252	struct mlx4_en_priv *priv = netdev_priv(dev);
253
254	if (sset != ETH_SS_STATS)
255	return -EOPNOTSUPP;
256
257	return NUM_ALL_STATS + (priv->tx_ring_num + priv->rx_ring_num) * 2;
258	}
259
260	static void mlx4_en_get_ethtool_stats(struct net_device *dev,
261	struct ethtool_stats stats, uint64_t data)
262	{
263	struct mlx4_en_priv *priv = netdev_priv(dev);
264	int index = 0;
265	int i;
266
267	spin_lock_bh(&priv->stats_lock);
268
269	mlx4_en_update_lro_stats(priv);
270
271	for (i = 0; i < NUM_MAIN_STATS; i++)
272	data[index++] = ((unsigned long *) &priv->stats)[i];
273	for (i = 0; i < NUM_PORT_STATS; i++)
274	data[index++] = ((unsigned long *) &priv->port_stats)[i];
275	for (i = 0; i < priv->tx_ring_num; i++) {
276	data[index++] = priv->tx_ring[i].packets;
277	data[index++] = priv->tx_ring[i].bytes;
278	}
279	for (i = 0; i < priv->rx_ring_num; i++) {
280	data[index++] = priv->rx_ring[i].packets;
281	data[index++] = priv->rx_ring[i].bytes;
282	}
283	for (i = 0; i < NUM_PKT_STATS; i++)
284	data[index++] = ((unsigned long *) &priv->pkstats)[i];
285	spin_unlock_bh(&priv->stats_lock);
286
287	}
288
289	static void mlx4_en_get_strings(struct net_device *dev,
290	uint32_t stringset, uint8_t *data)
291	{
292	struct mlx4_en_priv *priv = netdev_priv(dev);
293	int index = 0;
294	int i;
295
296	if (stringset != ETH_SS_STATS)
297	return;
298
299	/* Add main counters */
300	for (i = 0; i < NUM_MAIN_STATS; i++)
301	strcpy(data + (index++) * ETH_GSTRING_LEN, main_strings[i]);
302	for (i = 0; i < NUM_PORT_STATS; i++)
303	strcpy(data + (index++) * ETH_GSTRING_LEN,
304	main_strings[i + NUM_MAIN_STATS]);
305	for (i = 0; i < priv->tx_ring_num; i++) {
306	sprintf(data + (index++) * ETH_GSTRING_LEN,
307	"tx%d_packets", i);
308	sprintf(data + (index++) * ETH_GSTRING_LEN,
309	"tx%d_bytes", i);
310	}
311	for (i = 0; i < priv->rx_ring_num; i++) {
312	sprintf(data + (index++) * ETH_GSTRING_LEN,
313	"rx%d_packets", i);
314	sprintf(data + (index++) * ETH_GSTRING_LEN,
315	"rx%d_bytes", i);
316	}
317	for (i = 0; i < NUM_PKT_STATS; i++)
318	strcpy(data + (index++) * ETH_GSTRING_LEN,
319	main_strings[i + NUM_MAIN_STATS + NUM_PORT_STATS]);
320	}
321
322	static int mlx4_en_get_settings(struct net_device dev, struct ethtool_cmd cmd)
323	{
324	cmd->autoneg = AUTONEG_DISABLE;
325	cmd->supported = SUPPORTED_10000baseT_Full;
326	cmd->advertising = SUPPORTED_10000baseT_Full;
327	if (netif_carrier_ok(dev)) {
328	cmd->speed = SPEED_10000;
329	cmd->duplex = DUPLEX_FULL;
330	} else {
331	cmd->speed = -1;
332	cmd->duplex = -1;
333	}
334	return 0;
335	}
336
337	static int mlx4_en_set_settings(struct net_device dev, struct ethtool_cmd cmd)
338	{
339	if ((cmd->autoneg == AUTONEG_ENABLE) \|\|
340	(cmd->speed != SPEED_10000) \|\| (cmd->duplex != DUPLEX_FULL))
341	return -EINVAL;
342
343	/* Nothing to change */
344	return 0;
345	}
346
347	static int mlx4_en_get_coalesce(struct net_device *dev,
348	struct ethtool_coalesce *coal)
349	{
350	struct mlx4_en_priv *priv = netdev_priv(dev);
351
352	coal->tx_coalesce_usecs = 0;
353	coal->tx_max_coalesced_frames = 0;
354	coal->rx_coalesce_usecs = priv->rx_usecs;
355	coal->rx_max_coalesced_frames = priv->rx_frames;
356
357	coal->pkt_rate_low = priv->pkt_rate_low;
358	coal->rx_coalesce_usecs_low = priv->rx_usecs_low;
359	coal->pkt_rate_high = priv->pkt_rate_high;
360	coal->rx_coalesce_usecs_high = priv->rx_usecs_high;
361	coal->rate_sample_interval = priv->sample_interval;
362	coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal;
363	return 0;
364	}
365
366	static int mlx4_en_set_coalesce(struct net_device *dev,
367	struct ethtool_coalesce *coal)
368	{
369	struct mlx4_en_priv *priv = netdev_priv(dev);
370	int err, i;
371
372	priv->rx_frames = (coal->rx_max_coalesced_frames ==
373	MLX4_EN_AUTO_CONF) ?
374	MLX4_EN_RX_COAL_TARGET /
375	priv->dev->mtu + 1 :
376	coal->rx_max_coalesced_frames;
377	priv->rx_usecs = (coal->rx_coalesce_usecs ==
378	MLX4_EN_AUTO_CONF) ?
379	MLX4_EN_RX_COAL_TIME :
380	coal->rx_coalesce_usecs;
381
382	/* Set adaptive coalescing params */
383	priv->pkt_rate_low = coal->pkt_rate_low;
384	priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
385	priv->pkt_rate_high = coal->pkt_rate_high;
386	priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
387	priv->sample_interval = coal->rate_sample_interval;
388	priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
389	priv->last_moder_time = MLX4_EN_AUTO_CONF;
390	if (priv->adaptive_rx_coal)
391	return 0;
392
393	for (i = 0; i < priv->rx_ring_num; i++) {
394	priv->rx_cq[i].moder_cnt = priv->rx_frames;
395	priv->rx_cq[i].moder_time = priv->rx_usecs;
396	err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]);
397	if (err)
398	return err;
399	}
400	return 0;
401	}
402
403	static int mlx4_en_set_pauseparam(struct net_device *dev,
404	struct ethtool_pauseparam *pause)
405	{
406	struct mlx4_en_priv *priv = netdev_priv(dev);
407	struct mlx4_en_dev *mdev = priv->mdev;
408	int err;
409
410	mdev->profile.tx_pause = pause->tx_pause != 0;
411	mdev->profile.rx_pause = pause->rx_pause != 0;
412	err = mlx4_SET_PORT_general(mdev->dev, priv->port,
413	priv->rx_skb_size + ETH_FCS_LEN,
414	mdev->profile.tx_pause,
415	mdev->profile.tx_ppp,
416	mdev->profile.rx_pause,
417	mdev->profile.rx_ppp);
418	if (err)
419	mlx4_err(mdev, "Failed setting pause params to\n");
420
421	return err;
422	}
423
424	static void mlx4_en_get_pauseparam(struct net_device *dev,
425	struct ethtool_pauseparam *pause)
426	{
427	struct mlx4_en_priv *priv = netdev_priv(dev);
428	struct mlx4_en_dev *mdev = priv->mdev;
429
430	pause->tx_pause = mdev->profile.tx_pause;
431	pause->rx_pause = mdev->profile.rx_pause;
432	}
433
434	static void mlx4_en_get_ringparam(struct net_device *dev,
435	struct ethtool_ringparam *param)
436	{
437	struct mlx4_en_priv *priv = netdev_priv(dev);
438	struct mlx4_en_dev *mdev = priv->mdev;
439
440	memset(param, 0, sizeof(*param));
441	param->rx_max_pending = mdev->dev->caps.max_rq_sg;
442	param->tx_max_pending = mdev->dev->caps.max_sq_sg;
443	param->rx_pending = mdev->profile.prof[priv->port].rx_ring_size;
444	param->tx_pending = mdev->profile.prof[priv->port].tx_ring_size;
445	}
446
447	const struct ethtool_ops mlx4_en_ethtool_ops = {
448	.get_drvinfo = mlx4_en_get_drvinfo,
449	.get_settings = mlx4_en_get_settings,
450	.set_settings = mlx4_en_set_settings,
451	#ifdef NETIF_F_TSO
452	.get_tso = mlx4_en_get_tso,
453	.set_tso = mlx4_en_set_tso,
454	#endif
455	.get_sg = ethtool_op_get_sg,
456	.set_sg = ethtool_op_set_sg,
457	.get_link = ethtool_op_get_link,
458	.get_rx_csum = mlx4_en_get_rx_csum,
459	.set_rx_csum = mlx4_en_set_rx_csum,
460	.get_tx_csum = ethtool_op_get_tx_csum,
461	.set_tx_csum = ethtool_op_set_tx_ipv6_csum,
462	.get_strings = mlx4_en_get_strings,
463	.get_sset_count = mlx4_en_get_sset_count,
464	.get_ethtool_stats = mlx4_en_get_ethtool_stats,
465	.get_wol = mlx4_en_get_wol,
466	.get_msglevel = mlx4_en_get_msglevel,
467	.set_msglevel = mlx4_en_set_msglevel,
468	.get_coalesce = mlx4_en_get_coalesce,
469	.set_coalesce = mlx4_en_set_coalesce,
470	.get_pauseparam = mlx4_en_get_pauseparam,
471	.set_pauseparam = mlx4_en_set_pauseparam,
472	.get_ringparam = mlx4_en_get_ringparam,
473	.get_flags = ethtool_op_get_flags,
474	.set_flags = ethtool_op_set_flags,
475	};
476
477
478
479
480