/* 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/etherdevice.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)}
#define QEDE_SELFTEST_POLL_COUNT 100
static const struct {
u64 offset;
char string[ETH_GSTRING_LEN];
} qede_rqstats_arr[] = {
QEDE_RQSTAT(rx_hw_errors),
QEDE_RQSTAT(rx_alloc_errors),
QEDE_RQSTAT(rx_ip_frags),
};
#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_65_to_127_byte_packets),
QEDE_PF_STAT(rx_128_to_255_byte_packets),
QEDE_PF_STAT(rx_256_to_511_byte_packets),
QEDE_PF_STAT(rx_512_to_1023_byte_packets),
QEDE_PF_STAT(rx_1024_to_1518_byte_packets),
QEDE_PF_STAT(rx_1519_to_1522_byte_packets),
QEDE_PF_STAT(rx_1519_to_2047_byte_packets),
QEDE_PF_STAT(rx_2048_to_4095_byte_packets),
QEDE_PF_STAT(rx_4096_to_9216_byte_packets),
QEDE_PF_STAT(rx_9217_to_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)
enum {
QEDE_PRI_FLAG_CMT,
QEDE_PRI_FLAG_LEN,
};
static const char qede_private_arr[QEDE_PRI_FLAG_LEN][ETH_GSTRING_LEN] = {
"Coupled-Function",
};
enum qede_ethtool_tests {
QEDE_ETHTOOL_INT_LOOPBACK,
QEDE_ETHTOOL_INTERRUPT_TEST,
QEDE_ETHTOOL_MEMORY_TEST,
QEDE_ETHTOOL_REGISTER_TEST,
QEDE_ETHTOOL_CLOCK_TEST,
QEDE_ETHTOOL_TEST_MAX
};
static const char qede_tests_str_arr[QEDE_ETHTOOL_TEST_MAX][ETH_GSTRING_LEN] = {
"Internal loopback (offline)",
"Interrupt (online)\t",
"Memory (online)\t\t",
"Register (online)\t",
"Clock (online)\t\t",
};
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++) {
if (IS_VF(edev) && qede_stats_arr[i].pf_only)
continue;
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;
case ETH_SS_PRIV_FLAGS:
memcpy(buf, qede_private_arr,
ETH_GSTRING_LEN * QEDE_PRI_FLAG_LEN);
break;
case ETH_SS_TEST:
memcpy(buf, qede_tests_str_arr,
ETH_GSTRING_LEN * QEDE_ETHTOOL_TEST_MAX);
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++) {
if (IS_VF(edev) && qede_stats_arr[sidx].pf_only)
continue;
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:
if (IS_VF(edev)) {
int i;
for (i = 0; i < QEDE_NUM_STATS; i++)
if (qede_stats_arr[i].pf_only)
num_stats--;
}
return num_stats + QEDE_NUM_RQSTATS;
case ETH_SS_PRIV_FLAGS:
return QEDE_PRI_FLAG_LEN;
case ETH_SS_TEST:
if (!IS_VF(edev))
return QEDE_ETHTOOL_TEST_MAX;
else
return 0;
default:
DP_VERBOSE(edev, QED_MSG_DEBUG,
"Unsupported stringset 0x%08x\n", stringset);
return -EINVAL;
}
}
static u32 qede_get_priv_flags(struct net_device *dev)
{
struct qede_dev *edev = netdev_priv(dev);
return (!!(edev->dev_info.common.num_hwfns > 1)) << QEDE_PRI_FLAG_CMT;
}
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->ops || !edev->ops->common->can_link_change(edev->cdev)) {
DP_INFO(edev,
"Link settings are not allowed to be changed\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 int qede_nway_reset(struct net_device *dev)
{
struct qede_dev *edev = netdev_priv(dev);
struct qed_link_output current_link;
struct qed_link_params link_params;
if (!edev->ops || !edev->ops->common->can_link_change(edev->cdev)) {
DP_INFO(edev,
"Link settings are not allowed to be changed\n");
return -EOPNOTSUPP;
}
if (!netif_running(dev))
return 0;
memset(¤t_link, 0, sizeof(current_link));
edev->ops->common->get_link(edev->cdev, ¤t_link);
if (!current_link.link_up)
return 0;
/* Toggle the link */
memset(&link_params, 0, sizeof(link_params));
link_params.link_up = false;
edev->ops->common->set_link(edev->cdev, &link_params);
link_params.link_up = true;
edev->ops->common->set_link(edev->cdev, &link_params);
return 0;
}
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 int qede_get_coalesce(struct net_device *dev,
struct ethtool_coalesce *coal)
{
struct qede_dev *edev = netdev_priv(dev);
u16 rxc, txc;
memset(coal, 0, sizeof(struct ethtool_coalesce));
edev->ops->common->get_coalesce(edev->cdev, &rxc, &txc);
coal->rx_coalesce_usecs = rxc;
coal->tx_coalesce_usecs = txc;
return 0;
}
static int qede_set_coalesce(struct net_device *dev,
struct ethtool_coalesce *coal)
{
struct qede_dev *edev = netdev_priv(dev);
int i, rc = 0;
u16 rxc, txc;
u8 sb_id;
if (!netif_running(dev)) {
DP_INFO(edev, "Interface is down\n");
return -EINVAL;
}
if (coal->rx_coalesce_usecs > QED_COALESCE_MAX ||
coal->tx_coalesce_usecs > QED_COALESCE_MAX) {
DP_INFO(edev,
"Can't support requested %s coalesce value [max supported value %d]\n",
coal->rx_coalesce_usecs > QED_COALESCE_MAX ? "rx"
: "tx",
QED_COALESCE_MAX);
return -EINVAL;
}
rxc = (u16)coal->rx_coalesce_usecs;
txc = (u16)coal->tx_coalesce_usecs;
for_each_rss(i) {
sb_id = edev->fp_array[i].sb_info->igu_sb_id;
rc = edev->ops->common->set_coalesce(edev->cdev, rxc, txc,
(u8)i, sb_id);
if (rc) {
DP_INFO(edev, "Set coalesce error, rc = %d\n", rc);
return rc;
}
}
return rc;
}
static void qede_get_ringparam(struct net_device *dev,
struct ethtool_ringparam *ering)
{
struct qede_dev *edev = netdev_priv(dev);
ering->rx_max_pending = NUM_RX_BDS_MAX;
ering->rx_pending = edev->q_num_rx_buffers;
ering->tx_max_pending = NUM_TX_BDS_MAX;
ering->tx_pending = edev->q_num_tx_buffers;
}
static int qede_set_ringparam(struct net_device *dev,
struct ethtool_ringparam *ering)
{
struct qede_dev *edev = netdev_priv(dev);
DP_VERBOSE(edev, (NETIF_MSG_IFUP | NETIF_MSG_IFDOWN),
"Set ring params command parameters: rx_pending = %d, tx_pending = %d\n",
ering->rx_pending, ering->tx_pending);
/* Validate legality of configuration */
if (ering->rx_pending > NUM_RX_BDS_MAX ||
ering->rx_pending < NUM_RX_BDS_MIN ||
ering->tx_pending > NUM_TX_BDS_MAX ||
ering->tx_pending < NUM_TX_BDS_MIN) {
DP_VERBOSE(edev, (NETIF_MSG_IFUP | NETIF_MSG_IFDOWN),
"Can only support Rx Buffer size [0%08x,...,0x%08x] and Tx Buffer size [0x%08x,...,0x%08x]\n",
NUM_RX_BDS_MIN, NUM_RX_BDS_MAX,
NUM_TX_BDS_MIN, NUM_TX_BDS_MAX);
return -EINVAL;
}
/* Change ring size and re-load */
edev->q_num_rx_buffers = ering->rx_pending;
edev->q_num_tx_buffers = ering->tx_pending;
if (netif_running(edev->ndev))
qede_reload(edev, NULL, NULL);
return 0;
}
static void qede_get_pauseparam(struct net_device *dev,
struct ethtool_pauseparam *epause)
{
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);
if (current_link.pause_config & QED_LINK_PAUSE_AUTONEG_ENABLE)
epause->autoneg = true;
if (current_link.pause_config & QED_LINK_PAUSE_RX_ENABLE)
epause->rx_pause = true;
if (current_link.pause_config & QED_LINK_PAUSE_TX_ENABLE)
epause->tx_pause = true;
DP_VERBOSE(edev, QED_MSG_DEBUG,
"ethtool_pauseparam: cmd %d autoneg %d rx_pause %d tx_pause %d\n",
epause->cmd, epause->autoneg, epause->rx_pause,
epause->tx_pause);
}
static int qede_set_pauseparam(struct net_device *dev,
struct ethtool_pauseparam *epause)
{
struct qede_dev *edev = netdev_priv(dev);
struct qed_link_params params;
struct qed_link_output current_link;
if (!edev->ops || !edev->ops->common->can_link_change(edev->cdev)) {
DP_INFO(edev,
"Pause settings are not allowed to be changed\n");
return -EOPNOTSUPP;
}
memset(¤t_link, 0, sizeof(current_link));
edev->ops->common->get_link(edev->cdev, ¤t_link);
memset(¶ms, 0, sizeof(params));
params.override_flags |= QED_LINK_OVERRIDE_PAUSE_CONFIG;
if (epause->autoneg) {
if (!(current_link.supported_caps & SUPPORTED_Autoneg)) {
DP_INFO(edev, "autoneg not supported\n");
return -EINVAL;
}
params.pause_config |= QED_LINK_PAUSE_AUTONEG_ENABLE;
}
if (epause->rx_pause)
params.pause_config |= QED_LINK_PAUSE_RX_ENABLE;
if (epause->tx_pause)
params.pause_config |= QED_LINK_PAUSE_TX_ENABLE;
params.link_up = true;
edev->ops->common->set_link(edev->cdev, ¶ms);
return 0;
}
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 void qede_get_channels(struct net_device *dev,
struct ethtool_channels *channels)
{
struct qede_dev *edev = netdev_priv(dev);
channels->max_combined = QEDE_MAX_RSS_CNT(edev);
channels->combined_count = QEDE_RSS_CNT(edev);
}
static int qede_set_channels(struct net_device *dev,
struct ethtool_channels *channels)
{
struct qede_dev *edev = netdev_priv(dev);
DP_VERBOSE(edev, (NETIF_MSG_IFUP | NETIF_MSG_IFDOWN),
"set-channels command parameters: rx = %d, tx = %d, other = %d, combined = %d\n",
channels->rx_count, channels->tx_count,
channels->other_count, channels->combined_count);
/* We don't support separate rx / tx, nor `other' channels. */
if (channels->rx_count || channels->tx_count ||
channels->other_count || (channels->combined_count == 0) ||
(channels->combined_count > QEDE_MAX_RSS_CNT(edev))) {
DP_VERBOSE(edev, (NETIF_MSG_IFUP | NETIF_MSG_IFDOWN),
"command parameters not supported\n");
return -EINVAL;
}
/* Check if there was a change in the active parameters */
if (channels->combined_count == QEDE_RSS_CNT(edev)) {
DP_VERBOSE(edev, (NETIF_MSG_IFUP | NETIF_MSG_IFDOWN),
"No change in active parameters\n");
return 0;
}
/* We need the number of queues to be divisible between the hwfns */
if (channels->combined_count % edev->dev_info.common.num_hwfns) {
DP_VERBOSE(edev, (NETIF_MSG_IFUP | NETIF_MSG_IFDOWN),
"Number of channels must be divisable by %04x\n",
edev->dev_info.common.num_hwfns);
return -EINVAL;
}
/* Set number of queues and reload if necessary */
edev->req_rss = channels->combined_count;
if (netif_running(dev))
qede_reload(edev, NULL, NULL);
return 0;
}
static int qede_set_phys_id(struct net_device *dev,
enum ethtool_phys_id_state state)
{
struct qede_dev *edev = netdev_priv(dev);
u8 led_state = 0;
switch (state) {
case ETHTOOL_ID_ACTIVE:
return 1; /* cycle on/off once per second */
case ETHTOOL_ID_ON:
led_state = QED_LED_MODE_ON;
break;
case ETHTOOL_ID_OFF:
led_state = QED_LED_MODE_OFF;
break;
case ETHTOOL_ID_INACTIVE:
led_state = QED_LED_MODE_RESTORE;
break;
}
edev->ops->common->set_led(edev->cdev, led_state);
return 0;
}
static int qede_get_rss_flags(struct qede_dev *edev, struct ethtool_rxnfc *info)
{
info->data = RXH_IP_SRC | RXH_IP_DST;
switch (info->flow_type) {
case TCP_V4_FLOW:
case TCP_V6_FLOW:
info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
break;
case UDP_V4_FLOW:
if (edev->rss_params.rss_caps & QED_RSS_IPV4_UDP)
info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
break;
case UDP_V6_FLOW:
if (edev->rss_params.rss_caps & QED_RSS_IPV6_UDP)
info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
break;
case IPV4_FLOW:
case IPV6_FLOW:
break;
default:
info->data = 0;
break;
}
return 0;
}
static int qede_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info,
u32 *rules __always_unused)
{
struct qede_dev *edev = netdev_priv(dev);
switch (info->cmd) {
case ETHTOOL_GRXRINGS:
info->data = edev->num_rss;
return 0;
case ETHTOOL_GRXFH:
return qede_get_rss_flags(edev, info);
default:
DP_ERR(edev, "Command parameters not supported\n");
return -EOPNOTSUPP;
}
}
static int qede_set_rss_flags(struct qede_dev *edev, struct ethtool_rxnfc *info)
{
struct qed_update_vport_params vport_update_params;
u8 set_caps = 0, clr_caps = 0;
DP_VERBOSE(edev, QED_MSG_DEBUG,
"Set rss flags command parameters: flow type = %d, data = %llu\n",
info->flow_type, info->data);
switch (info->flow_type) {
case TCP_V4_FLOW:
case TCP_V6_FLOW:
/* For TCP only 4-tuple hash is supported */
if (info->data ^ (RXH_IP_SRC | RXH_IP_DST |
RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
DP_INFO(edev, "Command parameters not supported\n");
return -EINVAL;
}
return 0;
case UDP_V4_FLOW:
/* For UDP either 2-tuple hash or 4-tuple hash is supported */
if (info->data == (RXH_IP_SRC | RXH_IP_DST |
RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
set_caps = QED_RSS_IPV4_UDP;
DP_VERBOSE(edev, QED_MSG_DEBUG,
"UDP 4-tuple enabled\n");
} else if (info->data == (RXH_IP_SRC | RXH_IP_DST)) {
clr_caps = QED_RSS_IPV4_UDP;
DP_VERBOSE(edev, QED_MSG_DEBUG,
"UDP 4-tuple disabled\n");
} else {
return -EINVAL;
}
break;
case UDP_V6_FLOW:
/* For UDP either 2-tuple hash or 4-tuple hash is supported */
if (info->data == (RXH_IP_SRC | RXH_IP_DST |
RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
set_caps = QED_RSS_IPV6_UDP;
DP_VERBOSE(edev, QED_MSG_DEBUG,
"UDP 4-tuple enabled\n");
} else if (info->data == (RXH_IP_SRC | RXH_IP_DST)) {
clr_caps = QED_RSS_IPV6_UDP;
DP_VERBOSE(edev, QED_MSG_DEBUG,
"UDP 4-tuple disabled\n");
} else {
return -EINVAL;
}
break;
case IPV4_FLOW:
case IPV6_FLOW:
/* For IP only 2-tuple hash is supported */
if (info->data ^ (RXH_IP_SRC | RXH_IP_DST)) {
DP_INFO(edev, "Command parameters not supported\n");
return -EINVAL;
}
return 0;
case SCTP_V4_FLOW:
case AH_ESP_V4_FLOW:
case AH_V4_FLOW:
case ESP_V4_FLOW:
case SCTP_V6_FLOW:
case AH_ESP_V6_FLOW:
case AH_V6_FLOW:
case ESP_V6_FLOW:
case IP_USER_FLOW:
case ETHER_FLOW:
/* RSS is not supported for these protocols */
if (info->data) {
DP_INFO(edev, "Command parameters not supported\n");
return -EINVAL;
}
return 0;
default:
return -EINVAL;
}
/* No action is needed if there is no change in the rss capability */
if (edev->rss_params.rss_caps == ((edev->rss_params.rss_caps &
~clr_caps) | set_caps))
return 0;
/* Update internal configuration */
edev->rss_params.rss_caps = (edev->rss_params.rss_caps & ~clr_caps) |
set_caps;
edev->rss_params_inited |= QEDE_RSS_CAPS_INITED;
/* Re-configure if possible */
if (netif_running(edev->ndev)) {
memset(&vport_update_params, 0, sizeof(vport_update_params));
vport_update_params.update_rss_flg = 1;
vport_update_params.vport_id = 0;
memcpy(&vport_update_params.rss_params, &edev->rss_params,
sizeof(vport_update_params.rss_params));
return edev->ops->vport_update(edev->cdev,
&vport_update_params);
}
return 0;
}
static int qede_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info)
{
struct qede_dev *edev = netdev_priv(dev);
switch (info->cmd) {
case ETHTOOL_SRXFH:
return qede_set_rss_flags(edev, info);
default:
DP_INFO(edev, "Command parameters not supported\n");
return -EOPNOTSUPP;
}
}
static u32 qede_get_rxfh_indir_size(struct net_device *dev)
{
return QED_RSS_IND_TABLE_SIZE;
}
static u32 qede_get_rxfh_key_size(struct net_device *dev)
{
struct qede_dev *edev = netdev_priv(dev);
return sizeof(edev->rss_params.rss_key);
}
static int qede_get_rxfh(struct net_device *dev, u32 *indir, u8 *key, u8 *hfunc)
{
struct qede_dev *edev = netdev_priv(dev);
int i;
if (hfunc)
*hfunc = ETH_RSS_HASH_TOP;
if (!indir)
return 0;
for (i = 0; i < QED_RSS_IND_TABLE_SIZE; i++)
indir[i] = edev->rss_params.rss_ind_table[i];
if (key)
memcpy(key, edev->rss_params.rss_key,
qede_get_rxfh_key_size(dev));
return 0;
}
static int qede_set_rxfh(struct net_device *dev, const u32 *indir,
const u8 *key, const u8 hfunc)
{
struct qed_update_vport_params vport_update_params;
struct qede_dev *edev = netdev_priv(dev);
int i;
if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
return -EOPNOTSUPP;
if (!indir && !key)
return 0;
if (indir) {
for (i = 0; i < QED_RSS_IND_TABLE_SIZE; i++)
edev->rss_params.rss_ind_table[i] = indir[i];
edev->rss_params_inited |= QEDE_RSS_INDIR_INITED;
}
if (key) {
memcpy(&edev->rss_params.rss_key, key,
qede_get_rxfh_key_size(dev));
edev->rss_params_inited |= QEDE_RSS_KEY_INITED;
}
if (netif_running(edev->ndev)) {
memset(&vport_update_params, 0, sizeof(vport_update_params));
vport_update_params.update_rss_flg = 1;
vport_update_params.vport_id = 0;
memcpy(&vport_update_params.rss_params, &edev->rss_params,
sizeof(vport_update_params.rss_params));
return edev->ops->vport_update(edev->cdev,
&vport_update_params);
}
return 0;
}
/* This function enables the interrupt generation and the NAPI on the device */
static void qede_netif_start(struct qede_dev *edev)
{
int i;
if (!netif_running(edev->ndev))
return;
for_each_rss(i) {
/* Update and reenable interrupts */
qed_sb_ack(edev->fp_array[i].sb_info, IGU_INT_ENABLE, 1);
napi_enable(&edev->fp_array[i].napi);
}
}
/* This function disables the NAPI and the interrupt generation on the device */
static void qede_netif_stop(struct qede_dev *edev)
{
int i;
for_each_rss(i) {
napi_disable(&edev->fp_array[i].napi);
/* Disable interrupts */
qed_sb_ack(edev->fp_array[i].sb_info, IGU_INT_DISABLE, 0);
}
}
static int qede_selftest_transmit_traffic(struct qede_dev *edev,
struct sk_buff *skb)
{
struct qede_tx_queue *txq = &edev->fp_array[0].txqs[0];
struct eth_tx_1st_bd *first_bd;
dma_addr_t mapping;
int i, idx, val;
/* Fill the entry in the SW ring and the BDs in the FW ring */
idx = txq->sw_tx_prod & NUM_TX_BDS_MAX;
txq->sw_tx_ring[idx].skb = skb;
first_bd = qed_chain_produce(&txq->tx_pbl);
memset(first_bd, 0, sizeof(*first_bd));
val = 1 << ETH_TX_1ST_BD_FLAGS_START_BD_SHIFT;
first_bd->data.bd_flags.bitfields = val;
val = skb->len & ETH_TX_DATA_1ST_BD_PKT_LEN_MASK;
first_bd->data.bitfields |= (val << ETH_TX_DATA_1ST_BD_PKT_LEN_SHIFT);
/* Map skb linear data for DMA and set in the first BD */
mapping = dma_map_single(&edev->pdev->dev, skb->data,
skb_headlen(skb), DMA_TO_DEVICE);
if (unlikely(dma_mapping_error(&edev->pdev->dev, mapping))) {
DP_NOTICE(edev, "SKB mapping failed\n");
return -ENOMEM;
}
BD_SET_UNMAP_ADDR_LEN(first_bd, mapping, skb_headlen(skb));
/* update the first BD with the actual num BDs */
first_bd->data.nbds = 1;
txq->sw_tx_prod++;
/* 'next page' entries are counted in the producer value */
val = cpu_to_le16(qed_chain_get_prod_idx(&txq->tx_pbl));
txq->tx_db.data.bd_prod = val;
/* wmb makes sure that the BDs data is updated before updating the
* producer, otherwise FW may read old data from the BDs.
*/
wmb();
barrier();
writel(txq->tx_db.raw, txq->doorbell_addr);
/* mmiowb is needed to synchronize doorbell writes from more than one
* processor. It guarantees that the write arrives to the device before
* the queue lock is released and another start_xmit is called (possibly
* on another CPU). Without this barrier, the next doorbell can bypass
* this doorbell. This is applicable to IA64/Altix systems.
*/
mmiowb();
for (i = 0; i < QEDE_SELFTEST_POLL_COUNT; i++) {
if (qede_txq_has_work(txq))
break;
usleep_range(100, 200);
}
if (!qede_txq_has_work(txq)) {
DP_NOTICE(edev, "Tx completion didn't happen\n");
return -1;
}
first_bd = (struct eth_tx_1st_bd *)qed_chain_consume(&txq->tx_pbl);
dma_unmap_page(&edev->pdev->dev, BD_UNMAP_ADDR(first_bd),
BD_UNMAP_LEN(first_bd), DMA_TO_DEVICE);
txq->sw_tx_cons++;
txq->sw_tx_ring[idx].skb = NULL;
return 0;
}
static int qede_selftest_receive_traffic(struct qede_dev *edev)
{
struct qede_rx_queue *rxq = edev->fp_array[0].rxq;
u16 hw_comp_cons, sw_comp_cons, sw_rx_index, len;
struct eth_fast_path_rx_reg_cqe *fp_cqe;
struct sw_rx_data *sw_rx_data;
union eth_rx_cqe *cqe;
u8 *data_ptr;
int i;
/* The packet is expected to receive on rx-queue 0 even though RSS is
* enabled. This is because the queue 0 is configured as the default
* queue and that the loopback traffic is not IP.
*/
for (i = 0; i < QEDE_SELFTEST_POLL_COUNT; i++) {
if (qede_has_rx_work(rxq))
break;
usleep_range(100, 200);
}
if (!qede_has_rx_work(rxq)) {
DP_NOTICE(edev, "Failed to receive the traffic\n");
return -1;
}
hw_comp_cons = le16_to_cpu(*rxq->hw_cons_ptr);
sw_comp_cons = qed_chain_get_cons_idx(&rxq->rx_comp_ring);
/* Memory barrier to prevent the CPU from doing speculative reads of CQE
* / BD before reading hw_comp_cons. If the CQE is read before it is
* written by FW, then FW writes CQE and SB, and then the CPU reads the
* hw_comp_cons, it will use an old CQE.
*/
rmb();
/* Get the CQE from the completion ring */
cqe = (union eth_rx_cqe *)qed_chain_consume(&rxq->rx_comp_ring);
/* Get the data from the SW ring */
sw_rx_index = rxq->sw_rx_cons & NUM_RX_BDS_MAX;
sw_rx_data = &rxq->sw_rx_ring[sw_rx_index];
fp_cqe = &cqe->fast_path_regular;
len = le16_to_cpu(fp_cqe->len_on_first_bd);
data_ptr = (u8 *)(page_address(sw_rx_data->data) +
fp_cqe->placement_offset + sw_rx_data->page_offset);
for (i = ETH_HLEN; i < len; i++)
if (data_ptr[i] != (unsigned char)(i & 0xff)) {
DP_NOTICE(edev, "Loopback test failed\n");
qede_recycle_rx_bd_ring(rxq, edev, 1);
return -1;
}
qede_recycle_rx_bd_ring(rxq, edev, 1);
return 0;
}
static int qede_selftest_run_loopback(struct qede_dev *edev, u32 loopback_mode)
{
struct qed_link_params link_params;
struct sk_buff *skb = NULL;
int rc = 0, i;
u32 pkt_size;
u8 *packet;
if (!netif_running(edev->ndev)) {
DP_NOTICE(edev, "Interface is down\n");
return -EINVAL;
}
qede_netif_stop(edev);
/* Bring up the link in Loopback mode */
memset(&link_params, 0, sizeof(link_params));
link_params.link_up = true;
link_params.override_flags = QED_LINK_OVERRIDE_LOOPBACK_MODE;
link_params.loopback_mode = loopback_mode;
edev->ops->common->set_link(edev->cdev, &link_params);
/* Wait for loopback configuration to apply */
msleep_interruptible(500);
/* prepare the loopback packet */
pkt_size = edev->ndev->mtu + ETH_HLEN;
skb = netdev_alloc_skb(edev->ndev, pkt_size);
if (!skb) {
DP_INFO(edev, "Can't allocate skb\n");
rc = -ENOMEM;
goto test_loopback_exit;
}
packet = skb_put(skb, pkt_size);
ether_addr_copy(packet, edev->ndev->dev_addr);
ether_addr_copy(packet + ETH_ALEN, edev->ndev->dev_addr);
memset(packet + (2 * ETH_ALEN), 0x77, (ETH_HLEN - (2 * ETH_ALEN)));
for (i = ETH_HLEN; i < pkt_size; i++)
packet[i] = (unsigned char)(i & 0xff);
rc = qede_selftest_transmit_traffic(edev, skb);
if (rc)
goto test_loopback_exit;
rc = qede_selftest_receive_traffic(edev);
if (rc)
goto test_loopback_exit;
DP_VERBOSE(edev, NETIF_MSG_RX_STATUS, "Loopback test successful\n");
test_loopback_exit:
dev_kfree_skb(skb);
/* Bring up the link in Normal mode */
memset(&link_params, 0, sizeof(link_params));
link_params.link_up = true;
link_params.override_flags = QED_LINK_OVERRIDE_LOOPBACK_MODE;
link_params.loopback_mode = QED_LINK_LOOPBACK_NONE;
edev->ops->common->set_link(edev->cdev, &link_params);
/* Wait for loopback configuration to apply */
msleep_interruptible(500);
qede_netif_start(edev);
return rc;
}
static void qede_self_test(struct net_device *dev,
struct ethtool_test *etest, u64 *buf)
{
struct qede_dev *edev = netdev_priv(dev);
DP_VERBOSE(edev, QED_MSG_DEBUG,
"Self-test command parameters: offline = %d, external_lb = %d\n",
(etest->flags & ETH_TEST_FL_OFFLINE),
(etest->flags & ETH_TEST_FL_EXTERNAL_LB) >> 2);
memset(buf, 0, sizeof(u64) * QEDE_ETHTOOL_TEST_MAX);
if (etest->flags & ETH_TEST_FL_OFFLINE) {
if (qede_selftest_run_loopback(edev,
QED_LINK_LOOPBACK_INT_PHY)) {
buf[QEDE_ETHTOOL_INT_LOOPBACK] = 1;
etest->flags |= ETH_TEST_FL_FAILED;
}
}
if (edev->ops->common->selftest->selftest_interrupt(edev->cdev)) {
buf[QEDE_ETHTOOL_INTERRUPT_TEST] = 1;
etest->flags |= ETH_TEST_FL_FAILED;
}
if (edev->ops->common->selftest->selftest_memory(edev->cdev)) {
buf[QEDE_ETHTOOL_MEMORY_TEST] = 1;
etest->flags |= ETH_TEST_FL_FAILED;
}
if (edev->ops->common->selftest->selftest_register(edev->cdev)) {
buf[QEDE_ETHTOOL_REGISTER_TEST] = 1;
etest->flags |= ETH_TEST_FL_FAILED;
}
if (edev->ops->common->selftest->selftest_clock(edev->cdev)) {
buf[QEDE_ETHTOOL_CLOCK_TEST] = 1;
etest->flags |= ETH_TEST_FL_FAILED;
}
}
static int qede_set_tunable(struct net_device *dev,
const struct ethtool_tunable *tuna,
const void *data)
{
struct qede_dev *edev = netdev_priv(dev);
u32 val;
switch (tuna->id) {
case ETHTOOL_RX_COPYBREAK:
val = *(u32 *)data;
if (val < QEDE_MIN_PKT_LEN || val > QEDE_RX_HDR_SIZE) {
DP_VERBOSE(edev, QED_MSG_DEBUG,
"Invalid rx copy break value, range is [%u, %u]",
QEDE_MIN_PKT_LEN, QEDE_RX_HDR_SIZE);
return -EINVAL;
}
edev->rx_copybreak = *(u32 *)data;
break;
default:
return -EOPNOTSUPP;
}
return 0;
}
static int qede_get_tunable(struct net_device *dev,
const struct ethtool_tunable *tuna, void *data)
{
struct qede_dev *edev = netdev_priv(dev);
switch (tuna->id) {
case ETHTOOL_RX_COPYBREAK:
*(u32 *)data = edev->rx_copybreak;
break;
default:
return -EOPNOTSUPP;
}
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,
.nway_reset = qede_nway_reset,
.get_link = qede_get_link,
.get_coalesce = qede_get_coalesce,
.set_coalesce = qede_set_coalesce,
.get_ringparam = qede_get_ringparam,
.set_ringparam = qede_set_ringparam,
.get_pauseparam = qede_get_pauseparam,
.set_pauseparam = qede_set_pauseparam,
.get_strings = qede_get_strings,
.set_phys_id = qede_set_phys_id,
.get_ethtool_stats = qede_get_ethtool_stats,
.get_priv_flags = qede_get_priv_flags,
.get_sset_count = qede_get_sset_count,
.get_rxnfc = qede_get_rxnfc,
.set_rxnfc = qede_set_rxnfc,
.get_rxfh_indir_size = qede_get_rxfh_indir_size,
.get_rxfh_key_size = qede_get_rxfh_key_size,
.get_rxfh = qede_get_rxfh,
.set_rxfh = qede_set_rxfh,
.get_channels = qede_get_channels,
.set_channels = qede_set_channels,
.self_test = qede_self_test,
.get_tunable = qede_get_tunable,
.set_tunable = qede_set_tunable,
};
static const struct ethtool_ops qede_vf_ethtool_ops = {
.get_settings = qede_get_settings,
.get_drvinfo = qede_get_drvinfo,
.get_msglevel = qede_get_msglevel,
.set_msglevel = qede_set_msglevel,
.get_link = qede_get_link,
.get_ringparam = qede_get_ringparam,
.set_ringparam = qede_set_ringparam,
.get_strings = qede_get_strings,
.get_ethtool_stats = qede_get_ethtool_stats,
.get_priv_flags = qede_get_priv_flags,
.get_sset_count = qede_get_sset_count,
.get_rxnfc = qede_get_rxnfc,
.set_rxnfc = qede_set_rxnfc,
.get_rxfh_indir_size = qede_get_rxfh_indir_size,
.get_rxfh_key_size = qede_get_rxfh_key_size,
.get_rxfh = qede_get_rxfh,
.set_rxfh = qede_set_rxfh,
.get_channels = qede_get_channels,
.set_channels = qede_set_channels,
.get_tunable = qede_get_tunable,
.set_tunable = qede_set_tunable,
};
void qede_set_ethtool_ops(struct net_device *dev)
{
struct qede_dev *edev = netdev_priv(dev);
if (IS_VF(edev))
dev->ethtool_ops = &qede_vf_ethtool_ops;
else
dev->ethtool_ops = &qede_ethtool_ops;
}