1 files changed, 385 insertions, 0 deletions

diff --git a/drivers/net/ethernet/qlogic/qede/qede_ethtool.c b/drivers/net/ethernet/qlogic/qede/qede_ethtool.c
new file mode 100644
index 000000000000..3a362476a22c
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qede/qede_ethtool.c
@@ -0,0 +1,385 @@
+/* QLogic qede NIC Driver
+* Copyright (c) 2015 QLogic Corporation
+*
+* This software is available 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.
+*/
+
+#include <linux/version.h>
+#include <linux/types.h>
+#include <linux/netdevice.h>
+#include <linux/ethtool.h>
+#include <linux/string.h>
+#include <linux/pci.h>
+#include <linux/capability.h>
+#include "qede.h"
+
+#define QEDE_STAT_OFFSET(stat_name) (offsetof(struct qede_stats, stat_name))
+#define QEDE_STAT_STRING(stat_name) (#stat_name)
+#define _QEDE_STAT(stat_name, pf_only) \
+	 {QEDE_STAT_OFFSET(stat_name), QEDE_STAT_STRING(stat_name), pf_only}
+#define QEDE_PF_STAT(stat_name)		_QEDE_STAT(stat_name, true)
+#define QEDE_STAT(stat_name)		_QEDE_STAT(stat_name, false)
+
+#define QEDE_RQSTAT_OFFSET(stat_name) \
+	 (offsetof(struct qede_rx_queue, stat_name))
+#define QEDE_RQSTAT_STRING(stat_name) (#stat_name)
+#define QEDE_RQSTAT(stat_name) \
+	 {QEDE_RQSTAT_OFFSET(stat_name), QEDE_RQSTAT_STRING(stat_name)}
+static const struct {
+	u64 offset;
+	char string[ETH_GSTRING_LEN];
+} qede_rqstats_arr[] = {
+	QEDE_RQSTAT(rx_hw_errors),
+	QEDE_RQSTAT(rx_alloc_errors),
+};
+
+#define QEDE_NUM_RQSTATS ARRAY_SIZE(qede_rqstats_arr)
+#define QEDE_RQSTATS_DATA(dev, sindex, rqindex) \
+	(*((u64 *)(((char *)(dev->fp_array[(rqindex)].rxq)) +\
+		    qede_rqstats_arr[(sindex)].offset)))
+static const struct {
+	u64 offset;
+	char string[ETH_GSTRING_LEN];
+	bool pf_only;
+} qede_stats_arr[] = {
+	QEDE_STAT(rx_ucast_bytes),
+	QEDE_STAT(rx_mcast_bytes),
+	QEDE_STAT(rx_bcast_bytes),
+	QEDE_STAT(rx_ucast_pkts),
+	QEDE_STAT(rx_mcast_pkts),
+	QEDE_STAT(rx_bcast_pkts),
+
+	QEDE_STAT(tx_ucast_bytes),
+	QEDE_STAT(tx_mcast_bytes),
+	QEDE_STAT(tx_bcast_bytes),
+	QEDE_STAT(tx_ucast_pkts),
+	QEDE_STAT(tx_mcast_pkts),
+	QEDE_STAT(tx_bcast_pkts),
+
+	QEDE_PF_STAT(rx_64_byte_packets),
+	QEDE_PF_STAT(rx_127_byte_packets),
+	QEDE_PF_STAT(rx_255_byte_packets),
+	QEDE_PF_STAT(rx_511_byte_packets),
+	QEDE_PF_STAT(rx_1023_byte_packets),
+	QEDE_PF_STAT(rx_1518_byte_packets),
+	QEDE_PF_STAT(rx_1522_byte_packets),
+	QEDE_PF_STAT(rx_2047_byte_packets),
+	QEDE_PF_STAT(rx_4095_byte_packets),
+	QEDE_PF_STAT(rx_9216_byte_packets),
+	QEDE_PF_STAT(rx_16383_byte_packets),
+	QEDE_PF_STAT(tx_64_byte_packets),
+	QEDE_PF_STAT(tx_65_to_127_byte_packets),
+	QEDE_PF_STAT(tx_128_to_255_byte_packets),
+	QEDE_PF_STAT(tx_256_to_511_byte_packets),
+	QEDE_PF_STAT(tx_512_to_1023_byte_packets),
+	QEDE_PF_STAT(tx_1024_to_1518_byte_packets),
+	QEDE_PF_STAT(tx_1519_to_2047_byte_packets),
+	QEDE_PF_STAT(tx_2048_to_4095_byte_packets),
+	QEDE_PF_STAT(tx_4096_to_9216_byte_packets),
+	QEDE_PF_STAT(tx_9217_to_16383_byte_packets),
+
+	QEDE_PF_STAT(rx_mac_crtl_frames),
+	QEDE_PF_STAT(tx_mac_ctrl_frames),
+	QEDE_PF_STAT(rx_pause_frames),
+	QEDE_PF_STAT(tx_pause_frames),
+	QEDE_PF_STAT(rx_pfc_frames),
+	QEDE_PF_STAT(tx_pfc_frames),
+
+	QEDE_PF_STAT(rx_crc_errors),
+	QEDE_PF_STAT(rx_align_errors),
+	QEDE_PF_STAT(rx_carrier_errors),
+	QEDE_PF_STAT(rx_oversize_packets),
+	QEDE_PF_STAT(rx_jabbers),
+	QEDE_PF_STAT(rx_undersize_packets),
+	QEDE_PF_STAT(rx_fragments),
+	QEDE_PF_STAT(tx_lpi_entry_count),
+	QEDE_PF_STAT(tx_total_collisions),
+	QEDE_PF_STAT(brb_truncates),
+	QEDE_PF_STAT(brb_discards),
+	QEDE_STAT(no_buff_discards),
+	QEDE_PF_STAT(mftag_filter_discards),
+	QEDE_PF_STAT(mac_filter_discards),
+	QEDE_STAT(tx_err_drop_pkts),
+
+	QEDE_STAT(coalesced_pkts),
+	QEDE_STAT(coalesced_events),
+	QEDE_STAT(coalesced_aborts_num),
+	QEDE_STAT(non_coalesced_pkts),
+	QEDE_STAT(coalesced_bytes),
+};
+
+#define QEDE_STATS_DATA(dev, index) \
+	(*((u64 *)(((char *)(dev)) + offsetof(struct qede_dev, stats) \
+			+ qede_stats_arr[(index)].offset)))
+
+#define QEDE_NUM_STATS	ARRAY_SIZE(qede_stats_arr)
+
+static void qede_get_strings_stats(struct qede_dev *edev, u8 *buf)
+{
+	int i, j, k;
+
+	for (i = 0, j = 0; i < QEDE_NUM_STATS; i++) {
+		strcpy(buf + j * ETH_GSTRING_LEN,
+		       qede_stats_arr[i].string);
+		j++;
+	}
+
+	for (k = 0; k < QEDE_NUM_RQSTATS; k++, j++)
+		strcpy(buf + j * ETH_GSTRING_LEN,
+		       qede_rqstats_arr[k].string);
+}
+
+static void qede_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
+{
+	struct qede_dev *edev = netdev_priv(dev);
+
+	switch (stringset) {
+	case ETH_SS_STATS:
+		qede_get_strings_stats(edev, buf);
+		break;
+	default:
+		DP_VERBOSE(edev, QED_MSG_DEBUG,
+			   "Unsupported stringset 0x%08x\n", stringset);
+	}
+}
+
+static void qede_get_ethtool_stats(struct net_device *dev,
+				   struct ethtool_stats *stats, u64 *buf)
+{
+	struct qede_dev *edev = netdev_priv(dev);
+	int sidx, cnt = 0;
+	int qid;
+
+	qede_fill_by_demand_stats(edev);
+
+	mutex_lock(&edev->qede_lock);
+
+	for (sidx = 0; sidx < QEDE_NUM_STATS; sidx++)
+		buf[cnt++] = QEDE_STATS_DATA(edev, sidx);
+
+	for (sidx = 0; sidx < QEDE_NUM_RQSTATS; sidx++) {
+		buf[cnt] = 0;
+		for (qid = 0; qid < edev->num_rss; qid++)
+			buf[cnt] += QEDE_RQSTATS_DATA(edev, sidx, qid);
+		cnt++;
+	}
+
+	mutex_unlock(&edev->qede_lock);
+}
+
+static int qede_get_sset_count(struct net_device *dev, int stringset)
+{
+	struct qede_dev *edev = netdev_priv(dev);
+	int num_stats = QEDE_NUM_STATS;
+
+	switch (stringset) {
+	case ETH_SS_STATS:
+		return num_stats + QEDE_NUM_RQSTATS;
+
+	default:
+		DP_VERBOSE(edev, QED_MSG_DEBUG,
+			   "Unsupported stringset 0x%08x\n", stringset);
+		return -EINVAL;
+	}
+}
+
+static int qede_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+	struct qede_dev *edev = netdev_priv(dev);
+	struct qed_link_output current_link;
+
+	memset(&current_link, 0, sizeof(current_link));
+	edev->ops->common->get_link(edev->cdev, &current_link);
+
+	cmd->supported = current_link.supported_caps;
+	cmd->advertising = current_link.advertised_caps;
+	if ((edev->state == QEDE_STATE_OPEN) && (current_link.link_up)) {
+		ethtool_cmd_speed_set(cmd, current_link.speed);
+		cmd->duplex = current_link.duplex;
+	} else {
+		cmd->duplex = DUPLEX_UNKNOWN;
+		ethtool_cmd_speed_set(cmd, SPEED_UNKNOWN);
+	}
+	cmd->port = current_link.port;
+	cmd->autoneg = (current_link.autoneg) ? AUTONEG_ENABLE :
+						AUTONEG_DISABLE;
+	cmd->lp_advertising = current_link.lp_caps;
+
+	return 0;
+}
+
+static int qede_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+	struct qede_dev *edev = netdev_priv(dev);
+	struct qed_link_output current_link;
+	struct qed_link_params params;
+	u32 speed;
+
+	if (edev->dev_info.common.is_mf) {
+		DP_INFO(edev,
+			"Link parameters can not be changed in MF mode\n");
+		return -EOPNOTSUPP;
+	}
+
+	memset(&current_link, 0, sizeof(current_link));
+	memset(&params, 0, sizeof(params));
+	edev->ops->common->get_link(edev->cdev, &current_link);
+
+	speed = ethtool_cmd_speed(cmd);
+	params.override_flags |= QED_LINK_OVERRIDE_SPEED_ADV_SPEEDS;
+	params.override_flags |= QED_LINK_OVERRIDE_SPEED_AUTONEG;
+	if (cmd->autoneg == AUTONEG_ENABLE) {
+		params.autoneg = true;
+		params.forced_speed = 0;
+		params.adv_speeds = cmd->advertising;
+	} else { /* forced speed */
+		params.override_flags |= QED_LINK_OVERRIDE_SPEED_FORCED_SPEED;
+		params.autoneg = false;
+		params.forced_speed = speed;
+		switch (speed) {
+		case SPEED_10000:
+			if (!(current_link.supported_caps &
+			    SUPPORTED_10000baseKR_Full)) {
+				DP_INFO(edev, "10G speed not supported\n");
+				return -EINVAL;
+			}
+			params.adv_speeds = SUPPORTED_10000baseKR_Full;
+			break;
+		case SPEED_40000:
+			if (!(current_link.supported_caps &
+			    SUPPORTED_40000baseLR4_Full)) {
+				DP_INFO(edev, "40G speed not supported\n");
+				return -EINVAL;
+			}
+			params.adv_speeds = SUPPORTED_40000baseLR4_Full;
+			break;
+		default:
+			DP_INFO(edev, "Unsupported speed %u\n", speed);
+			return -EINVAL;
+		}
+	}
+
+	params.link_up = true;
+	edev->ops->common->set_link(edev->cdev, &params);
+
+	return 0;
+}
+
+static void qede_get_drvinfo(struct net_device *ndev,
+			     struct ethtool_drvinfo *info)
+{
+	char mfw[ETHTOOL_FWVERS_LEN], storm[ETHTOOL_FWVERS_LEN];
+	struct qede_dev *edev = netdev_priv(ndev);
+
+	strlcpy(info->driver, "qede", sizeof(info->driver));
+	strlcpy(info->version, DRV_MODULE_VERSION, sizeof(info->version));
+
+	snprintf(storm, ETHTOOL_FWVERS_LEN, "%d.%d.%d.%d",
+		 edev->dev_info.common.fw_major,
+		 edev->dev_info.common.fw_minor,
+		 edev->dev_info.common.fw_rev,
+		 edev->dev_info.common.fw_eng);
+
+	snprintf(mfw, ETHTOOL_FWVERS_LEN, "%d.%d.%d.%d",
+		 (edev->dev_info.common.mfw_rev >> 24) & 0xFF,
+		 (edev->dev_info.common.mfw_rev >> 16) & 0xFF,
+		 (edev->dev_info.common.mfw_rev >> 8) & 0xFF,
+		 edev->dev_info.common.mfw_rev & 0xFF);
+
+	if ((strlen(storm) + strlen(mfw) + strlen("mfw storm  ")) <
+	    sizeof(info->fw_version)) {
+		snprintf(info->fw_version, sizeof(info->fw_version),
+			 "mfw %s storm %s", mfw, storm);
+	} else {
+		snprintf(info->fw_version, sizeof(info->fw_version),
+			 "%s %s", mfw, storm);
+	}
+
+	strlcpy(info->bus_info, pci_name(edev->pdev), sizeof(info->bus_info));
+}
+
+static u32 qede_get_msglevel(struct net_device *ndev)
+{
+	struct qede_dev *edev = netdev_priv(ndev);
+
+	return ((u32)edev->dp_level << QED_LOG_LEVEL_SHIFT) |
+	       edev->dp_module;
+}
+
+static void qede_set_msglevel(struct net_device *ndev, u32 level)
+{
+	struct qede_dev *edev = netdev_priv(ndev);
+	u32 dp_module = 0;
+	u8 dp_level = 0;
+
+	qede_config_debug(level, &dp_module, &dp_level);
+
+	edev->dp_level = dp_level;
+	edev->dp_module = dp_module;
+	edev->ops->common->update_msglvl(edev->cdev,
+					 dp_module, dp_level);
+}
+
+static u32 qede_get_link(struct net_device *dev)
+{
+	struct qede_dev *edev = netdev_priv(dev);
+	struct qed_link_output current_link;
+
+	memset(&current_link, 0, sizeof(current_link));
+	edev->ops->common->get_link(edev->cdev, &current_link);
+
+	return current_link.link_up;
+}
+
+static void qede_update_mtu(struct qede_dev *edev, union qede_reload_args *args)
+{
+	edev->ndev->mtu = args->mtu;
+}
+
+/* Netdevice NDOs */
+#define ETH_MAX_JUMBO_PACKET_SIZE	9600
+#define ETH_MIN_PACKET_SIZE		60
+int qede_change_mtu(struct net_device *ndev, int new_mtu)
+{
+	struct qede_dev *edev = netdev_priv(ndev);
+	union qede_reload_args args;
+
+	if ((new_mtu > ETH_MAX_JUMBO_PACKET_SIZE) ||
+	    ((new_mtu + ETH_HLEN) < ETH_MIN_PACKET_SIZE)) {
+		DP_ERR(edev, "Can't support requested MTU size\n");
+		return -EINVAL;
+	}
+
+	DP_VERBOSE(edev, (NETIF_MSG_IFUP | NETIF_MSG_IFDOWN),
+		   "Configuring MTU size of %d\n", new_mtu);
+
+	/* Set the mtu field and re-start the interface if needed*/
+	args.mtu = new_mtu;
+
+	if (netif_running(edev->ndev))
+		qede_reload(edev, &qede_update_mtu, &args);
+
+	qede_update_mtu(edev, &args);
+
+	return 0;
+}
+
+static const struct ethtool_ops qede_ethtool_ops = {
+	.get_settings = qede_get_settings,
+	.set_settings = qede_set_settings,
+	.get_drvinfo = qede_get_drvinfo,
+	.get_msglevel = qede_get_msglevel,
+	.set_msglevel = qede_set_msglevel,
+	.get_link = qede_get_link,
+	.get_strings = qede_get_strings,
+	.get_ethtool_stats = qede_get_ethtool_stats,
+	.get_sset_count = qede_get_sset_count,
+
+};
+
+void qede_set_ethtool_ops(struct net_device *dev)
+{
+	dev->ethtool_ops = &qede_ethtool_ops;
+}