/* 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(¤t_link, 0, sizeof(current_link));
edev->ops->common->get_link(edev->cdev, ¤t_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(¤t_link, 0, sizeof(current_link));
memset(¶ms, 0, sizeof(params));
edev->ops->common->get_link(edev->cdev, ¤t_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, ¶ms);
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(¤t_link, 0, sizeof(current_link));
edev->ops->common->get_link(edev->cdev, ¤t_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;
}