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linux/drivers/net/benet/be_ethtool.c
Joe Perches a4b770972b drivers/net: Remove unnecessary returns from void function()s 
This patch removes from drivers/net/ all the unnecessary
return; statements that precede the last closing brace of
void functions.

It does not remove the returns that are immediately
preceded by a label as gcc doesn't like that.

It also does not remove null void functions with return.

Done via:
$ grep -rP --include=*.[ch] -l "return;\n}" net/ | \
  xargs perl -i -e 'local $/ ; while (<>) { s/\n[ \t\n]+return;\n}/\n}/g; print; }'

with some cleanups by hand.

Compile tested x86 allmodconfig only.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-14 00:19:28 -07:00

650 lines
16 KiB
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/*
* Copyright (C) 2005 - 2010 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_rx_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 const char et_self_tests[][ETH_GSTRING_LEN] = {
"MAC Loopback test",
"PHY Loopback test",
"External Loopback test",
"DDR DMA test"
"Link test"
};
#define ETHTOOL_TESTS_NUM ARRAY_SIZE(et_self_tests)
#define BE_MAC_LOOPBACK 0x0
#define BE_PHY_LOOPBACK 0x1
#define BE_ONE_PORT_EXT_LOOPBACK 0x2
#define BE_NO_LOOPBACK 0xff
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 = &netdev->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;
}
}
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;
case ETH_SS_TEST:
for (i = 0; i < ETHTOOL_TESTS_NUM; i++) {
memcpy(data, et_self_tests[i], ETH_GSTRING_LEN);
data += ETH_GSTRING_LEN;
}
break;
}
}
static int be_get_sset_count(struct net_device *netdev, int stringset)
{
switch (stringset) {
case ETH_SS_TEST:
return ETHTOOL_TESTS_NUM;
case ETH_SS_STATS:
return ETHTOOL_STATS_NUM;
default:
return -EINVAL;
}
}
static int be_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
{
struct be_adapter *adapter = netdev_priv(netdev);
u8 mac_speed = 0, connector = 0;
u16 link_speed = 0;
bool link_up = false;
int status;
if (adapter->link_speed < 0) {
status = be_cmd_link_status_query(adapter, &link_up,
&mac_speed, &link_speed);
/* link_speed is in units of 10 Mbps */
if (link_speed) {
ecmd->speed = link_speed*10;
} else {
switch (mac_speed) {
case PHY_LINK_SPEED_1GBPS:
ecmd->speed = SPEED_1000;
break;
case PHY_LINK_SPEED_10GBPS:
ecmd->speed = SPEED_10000;
break;
}
}
status = be_cmd_read_port_type(adapter, adapter->port_num,
&connector);
if (!status) {
switch (connector) {
case 7:
ecmd->port = PORT_FIBRE;
ecmd->transceiver = XCVR_EXTERNAL;
break;
case 0:
ecmd->port = PORT_TP;
ecmd->transceiver = XCVR_EXTERNAL;
break;
default:
ecmd->port = PORT_TP;
ecmd->transceiver = XCVR_INTERNAL;
break;
}
} else {
ecmd->port = PORT_AUI;
ecmd->transceiver = XCVR_INTERNAL;
}
/* Save for future use */
adapter->link_speed = ecmd->speed;
adapter->port_type = ecmd->port;
adapter->transceiver = ecmd->transceiver;
} else {
ecmd->speed = adapter->link_speed;
ecmd->port = adapter->port_type;
ecmd->transceiver = adapter->transceiver;
}
ecmd->duplex = DUPLEX_FULL;
ecmd->autoneg = AUTONEG_DISABLE;
ecmd->phy_address = adapter->port_num;
switch (ecmd->port) {
case PORT_FIBRE:
ecmd->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE);
break;
case PORT_TP:
ecmd->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_TP);
break;
case PORT_AUI:
ecmd->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_AUI);
break;
}
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_phys_id(struct net_device *netdev, u32 data)
{
struct be_adapter *adapter = netdev_priv(netdev);
int status;
u32 cur;
be_cmd_get_beacon_state(adapter, adapter->port_num, &cur);
if (cur == BEACON_STATE_ENABLED)
return 0;
if (data < 2)
data = 2;
status = be_cmd_set_beacon_state(adapter, adapter->port_num, 0, 0,
BEACON_STATE_ENABLED);
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(data*HZ);
status = be_cmd_set_beacon_state(adapter, adapter->port_num, 0, 0,
BEACON_STATE_DISABLED);
return status;
}
static void
be_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
{
struct be_adapter *adapter = netdev_priv(netdev);
wol->supported = WAKE_MAGIC;
if (adapter->wol)
wol->wolopts = WAKE_MAGIC;
else
wol->wolopts = 0;
memset(&wol->sopass, 0, sizeof(wol->sopass));
}
static int
be_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
{
struct be_adapter *adapter = netdev_priv(netdev);
if (wol->wolopts & ~WAKE_MAGIC)
return -EINVAL;
if (wol->wolopts & WAKE_MAGIC)
adapter->wol = true;
else
adapter->wol = false;
return 0;
}
static int
be_test_ddr_dma(struct be_adapter *adapter)
{
int ret, i;
struct be_dma_mem ddrdma_cmd;
u64 pattern[2] = {0x5a5a5a5a5a5a5a5aULL, 0xa5a5a5a5a5a5a5a5ULL};
ddrdma_cmd.size = sizeof(struct be_cmd_req_ddrdma_test);
ddrdma_cmd.va = pci_alloc_consistent(adapter->pdev, ddrdma_cmd.size,
&ddrdma_cmd.dma);
if (!ddrdma_cmd.va) {
dev_err(&adapter->pdev->dev, "Memory allocation failure\n");
return -ENOMEM;
}
for (i = 0; i < 2; i++) {
ret = be_cmd_ddr_dma_test(adapter, pattern[i],
4096, &ddrdma_cmd);
if (ret != 0)
goto err;
}
err:
pci_free_consistent(adapter->pdev, ddrdma_cmd.size,
ddrdma_cmd.va, ddrdma_cmd.dma);
return ret;
}
static u64 be_loopback_test(struct be_adapter *adapter, u8 loopback_type,
u64 *status)
{
be_cmd_set_loopback(adapter, adapter->port_num,
loopback_type, 1);
*status = be_cmd_loopback_test(adapter, adapter->port_num,
loopback_type, 1500,
2, 0xabc);
be_cmd_set_loopback(adapter, adapter->port_num,
BE_NO_LOOPBACK, 1);
return *status;
}
static void
be_self_test(struct net_device *netdev, struct ethtool_test *test, u64 *data)
{
struct be_adapter *adapter = netdev_priv(netdev);
bool link_up;
u8 mac_speed = 0;
u16 qos_link_speed = 0;
memset(data, 0, sizeof(u64) * ETHTOOL_TESTS_NUM);
if (test->flags & ETH_TEST_FL_OFFLINE) {
if (be_loopback_test(adapter, BE_MAC_LOOPBACK,
&data[0]) != 0) {
test->flags |= ETH_TEST_FL_FAILED;
}
if (be_loopback_test(adapter, BE_PHY_LOOPBACK,
&data[1]) != 0) {
test->flags |= ETH_TEST_FL_FAILED;
}
if (be_loopback_test(adapter, BE_ONE_PORT_EXT_LOOPBACK,
&data[2]) != 0) {
test->flags |= ETH_TEST_FL_FAILED;
}
}
if (be_test_ddr_dma(adapter) != 0) {
data[3] = 1;
test->flags |= ETH_TEST_FL_FAILED;
}
if (be_cmd_link_status_query(adapter, &link_up, &mac_speed,
&qos_link_speed) != 0) {
test->flags |= ETH_TEST_FL_FAILED;
data[4] = -1;
} else if (mac_speed) {
data[4] = 1;
}
}
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);
}
static int
be_get_eeprom_len(struct net_device *netdev)
{
return BE_READ_SEEPROM_LEN;
}
static int
be_read_eeprom(struct net_device *netdev, struct ethtool_eeprom *eeprom,
uint8_t *data)
{
struct be_adapter *adapter = netdev_priv(netdev);
struct be_dma_mem eeprom_cmd;
struct be_cmd_resp_seeprom_read *resp;
int status;
if (!eeprom->len)
return -EINVAL;
eeprom->magic = BE_VENDOR_ID | (adapter->pdev->device<<16);
memset(&eeprom_cmd, 0, sizeof(struct be_dma_mem));
eeprom_cmd.size = sizeof(struct be_cmd_req_seeprom_read);
eeprom_cmd.va = pci_alloc_consistent(adapter->pdev, eeprom_cmd.size,
&eeprom_cmd.dma);
if (!eeprom_cmd.va) {
dev_err(&adapter->pdev->dev,
"Memory allocation failure. Could not read eeprom\n");
return -ENOMEM;
}
status = be_cmd_get_seeprom_data(adapter, &eeprom_cmd);
if (!status) {
resp = (struct be_cmd_resp_seeprom_read *) eeprom_cmd.va;
memcpy(data, resp->seeprom_data + eeprom->offset, eeprom->len);
}
pci_free_consistent(adapter->pdev, eeprom_cmd.size, eeprom_cmd.va,
eeprom_cmd.dma);
return status;
}
const struct ethtool_ops be_ethtool_ops = {
.get_settings = be_get_settings,
.get_drvinfo = be_get_drvinfo,
.get_wol = be_get_wol,
.set_wol = be_set_wol,
.get_link = ethtool_op_get_link,
.get_eeprom_len = be_get_eeprom_len,
.get_eeprom = be_read_eeprom,
.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,
.phys_id = be_phys_id,
.get_sset_count = be_get_sset_count,
.get_ethtool_stats = be_get_ethtool_stats,
.flash_device = be_do_flash,
.self_test = be_self_test,
};
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