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9e90c96113
linux/drivers/net/benet/be_ethtool.c
Ajit Khaparde 9e90c96113 be2net: fix to set proper flow control on resume 
If be2 goes into suspend after a user changes the flow control settings,
we are not programming them back after resume. This patch takes care of it.
We now get the flow control settings before going to suspend mode and
then apply them during resume.

Signed-off-by: Ajit Khaparde <ajitk@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-06 20:26:03 -08:00

373 lines
10 KiB
C
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/*
* Copyright (C) 2005 - 2009 ServerEngines
* All rights reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation. The full GNU General
* Public License is included in this distribution in the file called COPYING.
*
* Contact Information:
* linux-drivers@serverengines.com
*
* ServerEngines
* 209 N. Fair Oaks Ave
* Sunnyvale, CA 94085
*/
#include "be.h"
#include "be_cmds.h"
#include <linux/ethtool.h>
struct be_ethtool_stat {
char desc[ETH_GSTRING_LEN];
int type;
int size;
int offset;
};
enum {NETSTAT, PORTSTAT, MISCSTAT, DRVSTAT, ERXSTAT};
#define FIELDINFO(_struct, field) FIELD_SIZEOF(_struct, field), \
offsetof(_struct, field)
#define NETSTAT_INFO(field) #field, NETSTAT,\
FIELDINFO(struct net_device_stats,\
field)
#define DRVSTAT_INFO(field) #field, DRVSTAT,\
FIELDINFO(struct be_drvr_stats, field)
#define MISCSTAT_INFO(field) #field, MISCSTAT,\
FIELDINFO(struct be_rxf_stats, field)
#define PORTSTAT_INFO(field) #field, PORTSTAT,\
FIELDINFO(struct be_port_rxf_stats, \
field)
#define ERXSTAT_INFO(field) #field, ERXSTAT,\
FIELDINFO(struct be_erx_stats, field)
static const struct be_ethtool_stat et_stats[] = {
{NETSTAT_INFO(rx_packets)},
{NETSTAT_INFO(tx_packets)},
{NETSTAT_INFO(rx_bytes)},
{NETSTAT_INFO(tx_bytes)},
{NETSTAT_INFO(rx_errors)},
{NETSTAT_INFO(tx_errors)},
{NETSTAT_INFO(rx_dropped)},
{NETSTAT_INFO(tx_dropped)},
{DRVSTAT_INFO(be_tx_reqs)},
{DRVSTAT_INFO(be_tx_stops)},
{DRVSTAT_INFO(be_fwd_reqs)},
{DRVSTAT_INFO(be_tx_wrbs)},
{DRVSTAT_INFO(be_polls)},
{DRVSTAT_INFO(be_tx_events)},
{DRVSTAT_INFO(be_rx_events)},
{DRVSTAT_INFO(be_tx_compl)},
{DRVSTAT_INFO(be_rx_compl)},
{DRVSTAT_INFO(be_ethrx_post_fail)},
{DRVSTAT_INFO(be_802_3_dropped_frames)},
{DRVSTAT_INFO(be_802_3_malformed_frames)},
{DRVSTAT_INFO(be_tx_rate)},
{DRVSTAT_INFO(be_rx_rate)},
{PORTSTAT_INFO(rx_unicast_frames)},
{PORTSTAT_INFO(rx_multicast_frames)},
{PORTSTAT_INFO(rx_broadcast_frames)},
{PORTSTAT_INFO(rx_crc_errors)},
{PORTSTAT_INFO(rx_alignment_symbol_errors)},
{PORTSTAT_INFO(rx_pause_frames)},
{PORTSTAT_INFO(rx_control_frames)},
{PORTSTAT_INFO(rx_in_range_errors)},
{PORTSTAT_INFO(rx_out_range_errors)},
{PORTSTAT_INFO(rx_frame_too_long)},
{PORTSTAT_INFO(rx_address_match_errors)},
{PORTSTAT_INFO(rx_vlan_mismatch)},
{PORTSTAT_INFO(rx_dropped_too_small)},
{PORTSTAT_INFO(rx_dropped_too_short)},
{PORTSTAT_INFO(rx_dropped_header_too_small)},
{PORTSTAT_INFO(rx_dropped_tcp_length)},
{PORTSTAT_INFO(rx_dropped_runt)},
{PORTSTAT_INFO(rx_fifo_overflow)},
{PORTSTAT_INFO(rx_input_fifo_overflow)},
{PORTSTAT_INFO(rx_ip_checksum_errs)},
{PORTSTAT_INFO(rx_tcp_checksum_errs)},
{PORTSTAT_INFO(rx_udp_checksum_errs)},
{PORTSTAT_INFO(rx_non_rss_packets)},
{PORTSTAT_INFO(rx_ipv4_packets)},
{PORTSTAT_INFO(rx_ipv6_packets)},
{PORTSTAT_INFO(tx_unicastframes)},
{PORTSTAT_INFO(tx_multicastframes)},
{PORTSTAT_INFO(tx_broadcastframes)},
{PORTSTAT_INFO(tx_pauseframes)},
{PORTSTAT_INFO(tx_controlframes)},
{MISCSTAT_INFO(rx_drops_no_pbuf)},
{MISCSTAT_INFO(rx_drops_no_txpb)},
{MISCSTAT_INFO(rx_drops_no_erx_descr)},
{MISCSTAT_INFO(rx_drops_no_tpre_descr)},
{MISCSTAT_INFO(rx_drops_too_many_frags)},
{MISCSTAT_INFO(rx_drops_invalid_ring)},
{MISCSTAT_INFO(forwarded_packets)},
{MISCSTAT_INFO(rx_drops_mtu)},
{ERXSTAT_INFO(rx_drops_no_fragments)},
};
#define ETHTOOL_STATS_NUM ARRAY_SIZE(et_stats)
static void
be_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
{
struct be_adapter *adapter = netdev_priv(netdev);
strcpy(drvinfo->driver, DRV_NAME);
strcpy(drvinfo->version, DRV_VER);
strncpy(drvinfo->fw_version, adapter->fw_ver, FW_VER_LEN);
strcpy(drvinfo->bus_info, pci_name(adapter->pdev));
drvinfo->testinfo_len = 0;
drvinfo->regdump_len = 0;
drvinfo->eedump_len = 0;
}
static int
be_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *coalesce)
{
struct be_adapter *adapter = netdev_priv(netdev);
struct be_eq_obj *rx_eq = &adapter->rx_eq;
struct be_eq_obj *tx_eq = &adapter->tx_eq;
coalesce->rx_coalesce_usecs = rx_eq->cur_eqd;
coalesce->rx_coalesce_usecs_high = rx_eq->max_eqd;
coalesce->rx_coalesce_usecs_low = rx_eq->min_eqd;
coalesce->tx_coalesce_usecs = tx_eq->cur_eqd;
coalesce->tx_coalesce_usecs_high = tx_eq->max_eqd;
coalesce->tx_coalesce_usecs_low = tx_eq->min_eqd;
coalesce->use_adaptive_rx_coalesce = rx_eq->enable_aic;
coalesce->use_adaptive_tx_coalesce = tx_eq->enable_aic;
return 0;
}
/*
* This routine is used to set interrup coalescing delay
*/
static int
be_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *coalesce)
{
struct be_adapter *adapter = netdev_priv(netdev);
struct be_eq_obj *rx_eq = &adapter->rx_eq;
struct be_eq_obj *tx_eq = &adapter->tx_eq;
u32 tx_max, tx_min, tx_cur;
u32 rx_max, rx_min, rx_cur;
int status = 0;
if (coalesce->use_adaptive_tx_coalesce == 1)
return -EINVAL;
/* if AIC is being turned on now, start with an EQD of 0 */
if (rx_eq->enable_aic == 0 &&
coalesce->use_adaptive_rx_coalesce == 1) {
rx_eq->cur_eqd = 0;
}
rx_eq->enable_aic = coalesce->use_adaptive_rx_coalesce;
rx_max = coalesce->rx_coalesce_usecs_high;
rx_min = coalesce->rx_coalesce_usecs_low;
rx_cur = coalesce->rx_coalesce_usecs;
tx_max = coalesce->tx_coalesce_usecs_high;
tx_min = coalesce->tx_coalesce_usecs_low;
tx_cur = coalesce->tx_coalesce_usecs;
if (tx_cur > BE_MAX_EQD)
tx_cur = BE_MAX_EQD;
if (tx_eq->cur_eqd != tx_cur) {
status = be_cmd_modify_eqd(adapter, tx_eq->q.id, tx_cur);
if (!status)
tx_eq->cur_eqd = tx_cur;
}
if (rx_eq->enable_aic) {
if (rx_max > BE_MAX_EQD)
rx_max = BE_MAX_EQD;
if (rx_min > rx_max)
rx_min = rx_max;
rx_eq->max_eqd = rx_max;
rx_eq->min_eqd = rx_min;
if (rx_eq->cur_eqd > rx_max)
rx_eq->cur_eqd = rx_max;
if (rx_eq->cur_eqd < rx_min)
rx_eq->cur_eqd = rx_min;
} else {
if (rx_cur > BE_MAX_EQD)
rx_cur = BE_MAX_EQD;
if (rx_eq->cur_eqd != rx_cur) {
status = be_cmd_modify_eqd(adapter, rx_eq->q.id,
rx_cur);
if (!status)
rx_eq->cur_eqd = rx_cur;
}
}
return 0;
}
static u32 be_get_rx_csum(struct net_device *netdev)
{
struct be_adapter *adapter = netdev_priv(netdev);
return adapter->rx_csum;
}
static int be_set_rx_csum(struct net_device *netdev, uint32_t data)
{
struct be_adapter *adapter = netdev_priv(netdev);
if (data)
adapter->rx_csum = true;
else
adapter->rx_csum = false;
return 0;
}
static void
be_get_ethtool_stats(struct net_device *netdev,
struct ethtool_stats *stats, uint64_t *data)
{
struct be_adapter *adapter = netdev_priv(netdev);
struct be_drvr_stats *drvr_stats = &adapter->stats.drvr_stats;
struct be_hw_stats *hw_stats = hw_stats_from_cmd(adapter->stats.cmd.va);
struct be_rxf_stats *rxf_stats = &hw_stats->rxf;
struct be_port_rxf_stats *port_stats =
&rxf_stats->port[adapter->port_num];
struct net_device_stats *net_stats = &adapter->stats.net_stats;
struct be_erx_stats *erx_stats = &hw_stats->erx;
void *p = NULL;
int i;
for (i = 0; i < ETHTOOL_STATS_NUM; i++) {
switch (et_stats[i].type) {
case NETSTAT:
p = net_stats;
break;
case DRVSTAT:
p = drvr_stats;
break;
case PORTSTAT:
p = port_stats;
break;
case MISCSTAT:
p = rxf_stats;
break;
case ERXSTAT: /* Currently only one ERX stat is provided */
p = (u32 *)erx_stats + adapter->rx_obj.q.id;
break;
}
p = (u8 *)p + et_stats[i].offset;
data[i] = (et_stats[i].size == sizeof(u64)) ?
*(u64 *)p: *(u32 *)p;
}
return;
}
static void
be_get_stat_strings(struct net_device *netdev, uint32_t stringset,
uint8_t *data)
{
int i;
switch (stringset) {
case ETH_SS_STATS:
for (i = 0; i < ETHTOOL_STATS_NUM; i++) {
memcpy(data, et_stats[i].desc, ETH_GSTRING_LEN);
data += ETH_GSTRING_LEN;
}
break;
}
}
static int be_get_stats_count(struct net_device *netdev)
{
return ETHTOOL_STATS_NUM;
}
static int be_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
{
ecmd->speed = SPEED_10000;
ecmd->duplex = DUPLEX_FULL;
ecmd->autoneg = AUTONEG_DISABLE;
return 0;
}
static void
be_get_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring)
{
struct be_adapter *adapter = netdev_priv(netdev);
ring->rx_max_pending = adapter->rx_obj.q.len;
ring->tx_max_pending = adapter->tx_obj.q.len;
ring->rx_pending = atomic_read(&adapter->rx_obj.q.used);
ring->tx_pending = atomic_read(&adapter->tx_obj.q.used);
}
static void
be_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *ecmd)
{
struct be_adapter *adapter = netdev_priv(netdev);
be_cmd_get_flow_control(adapter, &ecmd->tx_pause, &ecmd->rx_pause);
ecmd->autoneg = 0;
}
static int
be_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *ecmd)
{
struct be_adapter *adapter = netdev_priv(netdev);
int status;
if (ecmd->autoneg != 0)
return -EINVAL;
adapter->tx_fc = ecmd->tx_pause;
adapter->rx_fc = ecmd->rx_pause;
status = be_cmd_set_flow_control(adapter,
adapter->tx_fc, adapter->rx_fc);
if (status)
dev_warn(&adapter->pdev->dev, "Pause param set failed.\n");
return status;
}
static int
be_do_flash(struct net_device *netdev, struct ethtool_flash *efl)
{
struct be_adapter *adapter = netdev_priv(netdev);
char file_name[ETHTOOL_FLASH_MAX_FILENAME];
u32 region;
file_name[ETHTOOL_FLASH_MAX_FILENAME - 1] = 0;
strcpy(file_name, efl->data);
region = efl->region;
return be_load_fw(adapter, file_name);
}
const struct ethtool_ops be_ethtool_ops = {
.get_settings = be_get_settings,
.get_drvinfo = be_get_drvinfo,
.get_link = ethtool_op_get_link,
.get_coalesce = be_get_coalesce,
.set_coalesce = be_set_coalesce,
.get_ringparam = be_get_ringparam,
.get_pauseparam = be_get_pauseparam,
.set_pauseparam = be_set_pauseparam,
.get_rx_csum = be_get_rx_csum,
.set_rx_csum = be_set_rx_csum,
.get_tx_csum = ethtool_op_get_tx_csum,
.set_tx_csum = ethtool_op_set_tx_hw_csum,
.get_sg = ethtool_op_get_sg,
.set_sg = ethtool_op_set_sg,
.get_tso = ethtool_op_get_tso,
.set_tso = ethtool_op_set_tso,
.get_strings = be_get_stat_strings,
.get_stats_count = be_get_stats_count,
.get_ethtool_stats = be_get_ethtool_stats,
.flash_device = be_do_flash,
};
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