mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-24 01:41:39 +00:00
![Hao Chen](/assets/img/avatar_default.png)
Add two new parameters kernel_ringparam and extack for .get_ringparam and .set_ringparam to extend more ring params through netlink. Signed-off-by: Hao Chen <chenhao288@hisilicon.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
475 lines
13 KiB
C
475 lines
13 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright IBM Corp. 2018
|
|
*/
|
|
|
|
#define KMSG_COMPONENT "qeth"
|
|
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
|
|
|
|
#include <linux/ethtool.h>
|
|
#include "qeth_core.h"
|
|
|
|
|
|
#define QETH_TXQ_STAT(_name, _stat) { \
|
|
.name = _name, \
|
|
.offset = offsetof(struct qeth_out_q_stats, _stat) \
|
|
}
|
|
|
|
#define QETH_CARD_STAT(_name, _stat) { \
|
|
.name = _name, \
|
|
.offset = offsetof(struct qeth_card_stats, _stat) \
|
|
}
|
|
|
|
struct qeth_stats {
|
|
char name[ETH_GSTRING_LEN];
|
|
unsigned int offset;
|
|
};
|
|
|
|
static const struct qeth_stats txq_stats[] = {
|
|
QETH_TXQ_STAT("IO buffers", bufs),
|
|
QETH_TXQ_STAT("IO buffer elements", buf_elements),
|
|
QETH_TXQ_STAT("packed IO buffers", bufs_pack),
|
|
QETH_TXQ_STAT("skbs", tx_packets),
|
|
QETH_TXQ_STAT("packed skbs", skbs_pack),
|
|
QETH_TXQ_STAT("SG skbs", skbs_sg),
|
|
QETH_TXQ_STAT("HW csum skbs", skbs_csum),
|
|
QETH_TXQ_STAT("TSO skbs", skbs_tso),
|
|
QETH_TXQ_STAT("linearized skbs", skbs_linearized),
|
|
QETH_TXQ_STAT("linearized+error skbs", skbs_linearized_fail),
|
|
QETH_TXQ_STAT("TSO bytes", tso_bytes),
|
|
QETH_TXQ_STAT("Packing mode switches", packing_mode_switch),
|
|
QETH_TXQ_STAT("Queue stopped", stopped),
|
|
QETH_TXQ_STAT("Doorbell", doorbell),
|
|
QETH_TXQ_STAT("IRQ for frames", coal_frames),
|
|
QETH_TXQ_STAT("Completion IRQ", completion_irq),
|
|
QETH_TXQ_STAT("Completion yield", completion_yield),
|
|
QETH_TXQ_STAT("Completion timer", completion_timer),
|
|
};
|
|
|
|
static const struct qeth_stats card_stats[] = {
|
|
QETH_CARD_STAT("rx0 IO buffers", rx_bufs),
|
|
QETH_CARD_STAT("rx0 HW csum skbs", rx_skb_csum),
|
|
QETH_CARD_STAT("rx0 SG skbs", rx_sg_skbs),
|
|
QETH_CARD_STAT("rx0 SG page frags", rx_sg_frags),
|
|
QETH_CARD_STAT("rx0 SG page allocs", rx_sg_alloc_page),
|
|
QETH_CARD_STAT("rx0 dropped, no memory", rx_dropped_nomem),
|
|
QETH_CARD_STAT("rx0 dropped, bad format", rx_dropped_notsupp),
|
|
QETH_CARD_STAT("rx0 dropped, runt", rx_dropped_runt),
|
|
};
|
|
|
|
#define TXQ_STATS_LEN ARRAY_SIZE(txq_stats)
|
|
#define CARD_STATS_LEN ARRAY_SIZE(card_stats)
|
|
|
|
static void qeth_add_stat_data(u64 **dst, void *src,
|
|
const struct qeth_stats stats[],
|
|
unsigned int size)
|
|
{
|
|
unsigned int i;
|
|
char *stat;
|
|
|
|
for (i = 0; i < size; i++) {
|
|
stat = (char *)src + stats[i].offset;
|
|
**dst = *(u64 *)stat;
|
|
(*dst)++;
|
|
}
|
|
}
|
|
|
|
static void qeth_add_stat_strings(u8 **data, const char *prefix,
|
|
const struct qeth_stats stats[],
|
|
unsigned int size)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < size; i++)
|
|
ethtool_sprintf(data, "%s%s", prefix, stats[i].name);
|
|
}
|
|
|
|
static int qeth_get_sset_count(struct net_device *dev, int stringset)
|
|
{
|
|
struct qeth_card *card = dev->ml_priv;
|
|
|
|
switch (stringset) {
|
|
case ETH_SS_STATS:
|
|
return CARD_STATS_LEN +
|
|
card->qdio.no_out_queues * TXQ_STATS_LEN;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
static void qeth_get_ethtool_stats(struct net_device *dev,
|
|
struct ethtool_stats *stats, u64 *data)
|
|
{
|
|
struct qeth_card *card = dev->ml_priv;
|
|
unsigned int i;
|
|
|
|
qeth_add_stat_data(&data, &card->stats, card_stats, CARD_STATS_LEN);
|
|
for (i = 0; i < card->qdio.no_out_queues; i++)
|
|
qeth_add_stat_data(&data, &card->qdio.out_qs[i]->stats,
|
|
txq_stats, TXQ_STATS_LEN);
|
|
}
|
|
|
|
static void __qeth_set_coalesce(struct net_device *dev,
|
|
struct qeth_qdio_out_q *queue,
|
|
struct ethtool_coalesce *coal)
|
|
{
|
|
WRITE_ONCE(queue->coalesce_usecs, coal->tx_coalesce_usecs);
|
|
WRITE_ONCE(queue->max_coalesced_frames, coal->tx_max_coalesced_frames);
|
|
|
|
if (coal->tx_coalesce_usecs &&
|
|
netif_running(dev) &&
|
|
!qeth_out_queue_is_empty(queue))
|
|
qeth_tx_arm_timer(queue, coal->tx_coalesce_usecs);
|
|
}
|
|
|
|
static int qeth_set_coalesce(struct net_device *dev,
|
|
struct ethtool_coalesce *coal,
|
|
struct kernel_ethtool_coalesce *kernel_coal,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct qeth_card *card = dev->ml_priv;
|
|
struct qeth_qdio_out_q *queue;
|
|
unsigned int i;
|
|
|
|
if (!IS_IQD(card))
|
|
return -EOPNOTSUPP;
|
|
|
|
if (!coal->tx_coalesce_usecs && !coal->tx_max_coalesced_frames)
|
|
return -EINVAL;
|
|
|
|
qeth_for_each_output_queue(card, queue, i)
|
|
__qeth_set_coalesce(dev, queue, coal);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void qeth_get_ringparam(struct net_device *dev,
|
|
struct ethtool_ringparam *param,
|
|
struct kernel_ethtool_ringparam *kernel_param,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct qeth_card *card = dev->ml_priv;
|
|
|
|
param->rx_max_pending = QDIO_MAX_BUFFERS_PER_Q;
|
|
param->rx_mini_max_pending = 0;
|
|
param->rx_jumbo_max_pending = 0;
|
|
param->tx_max_pending = QDIO_MAX_BUFFERS_PER_Q;
|
|
|
|
param->rx_pending = card->qdio.in_buf_pool.buf_count;
|
|
param->rx_mini_pending = 0;
|
|
param->rx_jumbo_pending = 0;
|
|
param->tx_pending = QDIO_MAX_BUFFERS_PER_Q;
|
|
}
|
|
|
|
static void qeth_get_strings(struct net_device *dev, u32 stringset, u8 *data)
|
|
{
|
|
struct qeth_card *card = dev->ml_priv;
|
|
char prefix[ETH_GSTRING_LEN] = "";
|
|
unsigned int i;
|
|
|
|
switch (stringset) {
|
|
case ETH_SS_STATS:
|
|
qeth_add_stat_strings(&data, prefix, card_stats,
|
|
CARD_STATS_LEN);
|
|
for (i = 0; i < card->qdio.no_out_queues; i++) {
|
|
snprintf(prefix, ETH_GSTRING_LEN, "tx%u ", i);
|
|
qeth_add_stat_strings(&data, prefix, txq_stats,
|
|
TXQ_STATS_LEN);
|
|
}
|
|
break;
|
|
default:
|
|
WARN_ON(1);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void qeth_get_drvinfo(struct net_device *dev,
|
|
struct ethtool_drvinfo *info)
|
|
{
|
|
struct qeth_card *card = dev->ml_priv;
|
|
|
|
strlcpy(info->driver, IS_LAYER2(card) ? "qeth_l2" : "qeth_l3",
|
|
sizeof(info->driver));
|
|
strlcpy(info->fw_version, card->info.mcl_level,
|
|
sizeof(info->fw_version));
|
|
snprintf(info->bus_info, sizeof(info->bus_info), "%s/%s/%s",
|
|
CARD_RDEV_ID(card), CARD_WDEV_ID(card), CARD_DDEV_ID(card));
|
|
}
|
|
|
|
static void qeth_get_channels(struct net_device *dev,
|
|
struct ethtool_channels *channels)
|
|
{
|
|
struct qeth_card *card = dev->ml_priv;
|
|
|
|
channels->max_rx = dev->num_rx_queues;
|
|
channels->max_tx = card->qdio.no_out_queues;
|
|
channels->max_other = 0;
|
|
channels->max_combined = 0;
|
|
channels->rx_count = dev->real_num_rx_queues;
|
|
channels->tx_count = dev->real_num_tx_queues;
|
|
channels->other_count = 0;
|
|
channels->combined_count = 0;
|
|
}
|
|
|
|
static int qeth_set_channels(struct net_device *dev,
|
|
struct ethtool_channels *channels)
|
|
{
|
|
struct qeth_priv *priv = netdev_priv(dev);
|
|
struct qeth_card *card = dev->ml_priv;
|
|
int rc;
|
|
|
|
if (channels->rx_count == 0 || channels->tx_count == 0)
|
|
return -EINVAL;
|
|
if (channels->tx_count > card->qdio.no_out_queues)
|
|
return -EINVAL;
|
|
|
|
/* Prio-queueing needs all TX queues: */
|
|
if (qeth_uses_tx_prio_queueing(card))
|
|
return -EPERM;
|
|
|
|
if (IS_IQD(card)) {
|
|
if (channels->tx_count < QETH_IQD_MIN_TXQ)
|
|
return -EINVAL;
|
|
|
|
/* Reject downgrade while running. It could push displaced
|
|
* ucast flows onto txq0, which is reserved for mcast.
|
|
*/
|
|
if (netif_running(dev) &&
|
|
channels->tx_count < dev->real_num_tx_queues)
|
|
return -EPERM;
|
|
}
|
|
|
|
rc = qeth_set_real_num_tx_queues(card, channels->tx_count);
|
|
if (!rc)
|
|
priv->tx_wanted_queues = channels->tx_count;
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int qeth_get_ts_info(struct net_device *dev,
|
|
struct ethtool_ts_info *info)
|
|
{
|
|
struct qeth_card *card = dev->ml_priv;
|
|
|
|
if (!IS_IQD(card))
|
|
return -EOPNOTSUPP;
|
|
|
|
return ethtool_op_get_ts_info(dev, info);
|
|
}
|
|
|
|
static int qeth_get_tunable(struct net_device *dev,
|
|
const struct ethtool_tunable *tuna, void *data)
|
|
{
|
|
struct qeth_priv *priv = netdev_priv(dev);
|
|
|
|
switch (tuna->id) {
|
|
case ETHTOOL_RX_COPYBREAK:
|
|
*(u32 *)data = priv->rx_copybreak;
|
|
return 0;
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
}
|
|
|
|
static int qeth_set_tunable(struct net_device *dev,
|
|
const struct ethtool_tunable *tuna,
|
|
const void *data)
|
|
{
|
|
struct qeth_priv *priv = netdev_priv(dev);
|
|
|
|
switch (tuna->id) {
|
|
case ETHTOOL_RX_COPYBREAK:
|
|
WRITE_ONCE(priv->rx_copybreak, *(u32 *)data);
|
|
return 0;
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
}
|
|
|
|
static int qeth_get_per_queue_coalesce(struct net_device *dev, u32 __queue,
|
|
struct ethtool_coalesce *coal)
|
|
{
|
|
struct qeth_card *card = dev->ml_priv;
|
|
struct qeth_qdio_out_q *queue;
|
|
|
|
if (!IS_IQD(card))
|
|
return -EOPNOTSUPP;
|
|
|
|
if (__queue >= card->qdio.no_out_queues)
|
|
return -EINVAL;
|
|
|
|
queue = card->qdio.out_qs[__queue];
|
|
|
|
coal->tx_coalesce_usecs = queue->coalesce_usecs;
|
|
coal->tx_max_coalesced_frames = queue->max_coalesced_frames;
|
|
return 0;
|
|
}
|
|
|
|
static int qeth_set_per_queue_coalesce(struct net_device *dev, u32 queue,
|
|
struct ethtool_coalesce *coal)
|
|
{
|
|
struct qeth_card *card = dev->ml_priv;
|
|
|
|
if (!IS_IQD(card))
|
|
return -EOPNOTSUPP;
|
|
|
|
if (queue >= card->qdio.no_out_queues)
|
|
return -EINVAL;
|
|
|
|
if (!coal->tx_coalesce_usecs && !coal->tx_max_coalesced_frames)
|
|
return -EINVAL;
|
|
|
|
__qeth_set_coalesce(dev, card->qdio.out_qs[queue], coal);
|
|
return 0;
|
|
}
|
|
|
|
/* Helper function to fill 'advertising' and 'supported' which are the same. */
|
|
/* Autoneg and full-duplex are supported and advertised unconditionally. */
|
|
/* Always advertise and support all speeds up to specified, and only one */
|
|
/* specified port type. */
|
|
static void qeth_set_ethtool_link_modes(struct ethtool_link_ksettings *cmd,
|
|
enum qeth_link_mode link_mode)
|
|
{
|
|
ethtool_link_ksettings_zero_link_mode(cmd, supported);
|
|
ethtool_link_ksettings_zero_link_mode(cmd, advertising);
|
|
ethtool_link_ksettings_zero_link_mode(cmd, lp_advertising);
|
|
|
|
ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
|
|
ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg);
|
|
|
|
switch (cmd->base.port) {
|
|
case PORT_TP:
|
|
ethtool_link_ksettings_add_link_mode(cmd, supported, TP);
|
|
ethtool_link_ksettings_add_link_mode(cmd, advertising, TP);
|
|
|
|
switch (cmd->base.speed) {
|
|
case SPEED_10000:
|
|
ethtool_link_ksettings_add_link_mode(cmd, supported,
|
|
10000baseT_Full);
|
|
ethtool_link_ksettings_add_link_mode(cmd, advertising,
|
|
10000baseT_Full);
|
|
fallthrough;
|
|
case SPEED_1000:
|
|
ethtool_link_ksettings_add_link_mode(cmd, supported,
|
|
1000baseT_Full);
|
|
ethtool_link_ksettings_add_link_mode(cmd, advertising,
|
|
1000baseT_Full);
|
|
ethtool_link_ksettings_add_link_mode(cmd, supported,
|
|
1000baseT_Half);
|
|
ethtool_link_ksettings_add_link_mode(cmd, advertising,
|
|
1000baseT_Half);
|
|
fallthrough;
|
|
case SPEED_100:
|
|
ethtool_link_ksettings_add_link_mode(cmd, supported,
|
|
100baseT_Full);
|
|
ethtool_link_ksettings_add_link_mode(cmd, advertising,
|
|
100baseT_Full);
|
|
ethtool_link_ksettings_add_link_mode(cmd, supported,
|
|
100baseT_Half);
|
|
ethtool_link_ksettings_add_link_mode(cmd, advertising,
|
|
100baseT_Half);
|
|
fallthrough;
|
|
case SPEED_10:
|
|
ethtool_link_ksettings_add_link_mode(cmd, supported,
|
|
10baseT_Full);
|
|
ethtool_link_ksettings_add_link_mode(cmd, advertising,
|
|
10baseT_Full);
|
|
ethtool_link_ksettings_add_link_mode(cmd, supported,
|
|
10baseT_Half);
|
|
ethtool_link_ksettings_add_link_mode(cmd, advertising,
|
|
10baseT_Half);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
break;
|
|
case PORT_FIBRE:
|
|
ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);
|
|
ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE);
|
|
|
|
switch (cmd->base.speed) {
|
|
case SPEED_25000:
|
|
ethtool_link_ksettings_add_link_mode(cmd, supported,
|
|
25000baseSR_Full);
|
|
ethtool_link_ksettings_add_link_mode(cmd, advertising,
|
|
25000baseSR_Full);
|
|
break;
|
|
case SPEED_10000:
|
|
if (link_mode == QETH_LINK_MODE_FIBRE_LONG) {
|
|
ethtool_link_ksettings_add_link_mode(cmd, supported,
|
|
10000baseLR_Full);
|
|
ethtool_link_ksettings_add_link_mode(cmd, advertising,
|
|
10000baseLR_Full);
|
|
} else if (link_mode == QETH_LINK_MODE_FIBRE_SHORT) {
|
|
ethtool_link_ksettings_add_link_mode(cmd, supported,
|
|
10000baseSR_Full);
|
|
ethtool_link_ksettings_add_link_mode(cmd, advertising,
|
|
10000baseSR_Full);
|
|
}
|
|
break;
|
|
case SPEED_1000:
|
|
ethtool_link_ksettings_add_link_mode(cmd, supported,
|
|
1000baseX_Full);
|
|
ethtool_link_ksettings_add_link_mode(cmd, advertising,
|
|
1000baseX_Full);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int qeth_get_link_ksettings(struct net_device *netdev,
|
|
struct ethtool_link_ksettings *cmd)
|
|
{
|
|
struct qeth_card *card = netdev->ml_priv;
|
|
struct qeth_link_info link_info;
|
|
|
|
cmd->base.speed = card->info.link_info.speed;
|
|
cmd->base.duplex = card->info.link_info.duplex;
|
|
cmd->base.port = card->info.link_info.port;
|
|
cmd->base.autoneg = AUTONEG_ENABLE;
|
|
cmd->base.phy_address = 0;
|
|
cmd->base.mdio_support = 0;
|
|
cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
|
|
cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_INVALID;
|
|
|
|
/* Check if we can obtain more accurate information. */
|
|
if (!qeth_query_card_info(card, &link_info)) {
|
|
if (link_info.speed != SPEED_UNKNOWN)
|
|
cmd->base.speed = link_info.speed;
|
|
if (link_info.duplex != DUPLEX_UNKNOWN)
|
|
cmd->base.duplex = link_info.duplex;
|
|
if (link_info.port != PORT_OTHER)
|
|
cmd->base.port = link_info.port;
|
|
}
|
|
|
|
qeth_set_ethtool_link_modes(cmd, card->info.link_info.link_mode);
|
|
|
|
return 0;
|
|
}
|
|
|
|
const struct ethtool_ops qeth_ethtool_ops = {
|
|
.supported_coalesce_params = ETHTOOL_COALESCE_TX_USECS |
|
|
ETHTOOL_COALESCE_TX_MAX_FRAMES,
|
|
.get_link = ethtool_op_get_link,
|
|
.set_coalesce = qeth_set_coalesce,
|
|
.get_ringparam = qeth_get_ringparam,
|
|
.get_strings = qeth_get_strings,
|
|
.get_ethtool_stats = qeth_get_ethtool_stats,
|
|
.get_sset_count = qeth_get_sset_count,
|
|
.get_drvinfo = qeth_get_drvinfo,
|
|
.get_channels = qeth_get_channels,
|
|
.set_channels = qeth_set_channels,
|
|
.get_ts_info = qeth_get_ts_info,
|
|
.get_tunable = qeth_get_tunable,
|
|
.set_tunable = qeth_set_tunable,
|
|
.get_per_queue_coalesce = qeth_get_per_queue_coalesce,
|
|
.set_per_queue_coalesce = qeth_set_per_queue_coalesce,
|
|
.get_link_ksettings = qeth_get_link_ksettings,
|
|
};
|