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igc_ethtool.c
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igc_ethtool.c
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// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2018 Intel Corporation */
/* ethtool support for igc */
#include <linux/if_vlan.h>
#include <linux/pm_runtime.h>
#include <linux/mdio.h>
#include "igc.h"
#include "igc_diag.h"
#include "backport.h"
#include "backport_overflow.h"
/* forward declaration */
struct igc_stats {
char stat_string[ETH_GSTRING_LEN];
int sizeof_stat;
int stat_offset;
};
/**
* sizeof_field(TYPE, MEMBER)
*
* @TYPE: The structure containing the field of interest
* @MEMBER: The field to return the size of
*/
#define sizeof_field(TYPE, MEMBER) sizeof((((TYPE *)0)->MEMBER))
#define IGC_STAT(_name, _stat) { \
.stat_string = _name, \
.sizeof_stat = sizeof_field(struct igc_adapter, _stat), \
.stat_offset = offsetof(struct igc_adapter, _stat) \
}
static const struct igc_stats igc_gstrings_stats[] = {
IGC_STAT("rx_packets", stats.gprc),
IGC_STAT("tx_packets", stats.gptc),
IGC_STAT("rx_bytes", stats.gorc),
IGC_STAT("tx_bytes", stats.gotc),
IGC_STAT("rx_broadcast", stats.bprc),
IGC_STAT("tx_broadcast", stats.bptc),
IGC_STAT("rx_multicast", stats.mprc),
IGC_STAT("tx_multicast", stats.mptc),
IGC_STAT("multicast", stats.mprc),
IGC_STAT("collisions", stats.colc),
IGC_STAT("rx_crc_errors", stats.crcerrs),
IGC_STAT("rx_no_buffer_count", stats.rnbc),
IGC_STAT("rx_missed_errors", stats.mpc),
IGC_STAT("tx_aborted_errors", stats.ecol),
IGC_STAT("tx_carrier_errors", stats.tncrs),
IGC_STAT("tx_window_errors", stats.latecol),
IGC_STAT("tx_abort_late_coll", stats.latecol),
IGC_STAT("tx_deferred_ok", stats.dc),
IGC_STAT("tx_single_coll_ok", stats.scc),
IGC_STAT("tx_multi_coll_ok", stats.mcc),
IGC_STAT("tx_timeout_count", tx_timeout_count),
IGC_STAT("rx_long_length_errors", stats.roc),
IGC_STAT("rx_short_length_errors", stats.ruc),
IGC_STAT("rx_align_errors", stats.algnerrc),
IGC_STAT("tx_tcp_seg_good", stats.tsctc),
IGC_STAT("tx_tcp_seg_failed", stats.tsctfc),
IGC_STAT("rx_flow_control_xon", stats.xonrxc),
IGC_STAT("rx_flow_control_xoff", stats.xoffrxc),
IGC_STAT("tx_flow_control_xon", stats.xontxc),
IGC_STAT("tx_flow_control_xoff", stats.xofftxc),
IGC_STAT("rx_long_byte_count", stats.gorc),
IGC_STAT("tx_dma_out_of_sync", stats.doosync),
IGC_STAT("tx_smbus", stats.mgptc),
IGC_STAT("rx_smbus", stats.mgprc),
IGC_STAT("dropped_smbus", stats.mgpdc),
IGC_STAT("os2bmc_rx_by_bmc", stats.o2bgptc),
IGC_STAT("os2bmc_tx_by_bmc", stats.b2ospc),
IGC_STAT("os2bmc_tx_by_host", stats.o2bspc),
IGC_STAT("os2bmc_rx_by_host", stats.b2ogprc),
IGC_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
IGC_STAT("tx_hwtstamp_skipped", tx_hwtstamp_skipped),
IGC_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
};
#define IGC_NETDEV_STAT(_net_stat) { \
.stat_string = __stringify(_net_stat), \
.sizeof_stat = sizeof_field(struct rtnl_link_stats64, _net_stat), \
.stat_offset = offsetof(struct rtnl_link_stats64, _net_stat) \
}
static const struct igc_stats igc_gstrings_net_stats[] = {
IGC_NETDEV_STAT(rx_errors),
IGC_NETDEV_STAT(tx_errors),
IGC_NETDEV_STAT(tx_dropped),
IGC_NETDEV_STAT(rx_length_errors),
IGC_NETDEV_STAT(rx_over_errors),
IGC_NETDEV_STAT(rx_frame_errors),
IGC_NETDEV_STAT(rx_fifo_errors),
IGC_NETDEV_STAT(tx_fifo_errors),
IGC_NETDEV_STAT(tx_heartbeat_errors)
};
enum igc_diagnostics_results {
TEST_REG = 0,
TEST_EEP,
TEST_IRQ,
TEST_LOOP,
TEST_LINK
};
static const char igc_gstrings_test[][ETH_GSTRING_LEN] = {
[TEST_REG] = "Register test (offline)",
[TEST_EEP] = "Eeprom test (offline)",
[TEST_IRQ] = "Interrupt test (offline)",
[TEST_LOOP] = "Loopback test (offline)",
[TEST_LINK] = "Link test (on/offline)"
};
#define IGC_TEST_LEN (sizeof(igc_gstrings_test) / ETH_GSTRING_LEN)
#define IGC_GLOBAL_STATS_LEN \
(sizeof(igc_gstrings_stats) / sizeof(struct igc_stats))
#define IGC_NETDEV_STATS_LEN \
(sizeof(igc_gstrings_net_stats) / sizeof(struct igc_stats))
#define IGC_RX_QUEUE_STATS_LEN \
(sizeof(struct igc_rx_queue_stats) / sizeof(u64))
#define IGC_TX_QUEUE_STATS_LEN 3 /* packets, bytes, restart_queue */
#define IGC_QUEUE_STATS_LEN \
((((struct igc_adapter *)netdev_priv(netdev))->num_rx_queues * \
IGC_RX_QUEUE_STATS_LEN) + \
(((struct igc_adapter *)netdev_priv(netdev))->num_tx_queues * \
IGC_TX_QUEUE_STATS_LEN))
#define IGC_STATS_LEN \
(IGC_GLOBAL_STATS_LEN + IGC_NETDEV_STATS_LEN + IGC_QUEUE_STATS_LEN)
static const char igc_priv_flags_strings[][ETH_GSTRING_LEN] = {
#define IGC_PRIV_FLAGS_LEGACY_RX BIT(0)
"legacy-rx",
};
#define IGC_PRIV_FLAGS_STR_LEN ARRAY_SIZE(igc_priv_flags_strings)
static void igc_ethtool_get_drvinfo(struct net_device *netdev,
struct ethtool_drvinfo *drvinfo)
{
struct igc_adapter *adapter = netdev_priv(netdev);
struct igc_hw *hw = &adapter->hw;
u16 nvm_version = 0;
u16 gphy_version;
strscpy(drvinfo->driver, igc_driver_name, sizeof(drvinfo->driver));
strscpy(drvinfo->version, igc_driver_version, sizeof(drvinfo->version));
/* NVM image version is reported as firmware version for i225 device */
hw->nvm.ops.read(hw, IGC_NVM_DEV_STARTER, 1, &nvm_version);
/* gPHY firmware version is reported as PHY FW version */
gphy_version = igc_read_phy_fw_version(hw);
scnprintf(adapter->fw_version,
sizeof(adapter->fw_version),
"%x:%x",
nvm_version,
gphy_version);
strscpy(drvinfo->fw_version, adapter->fw_version,
sizeof(drvinfo->fw_version));
strscpy(drvinfo->bus_info, pci_name(adapter->pdev),
sizeof(drvinfo->bus_info));
drvinfo->n_priv_flags = IGC_PRIV_FLAGS_STR_LEN;
}
static int igc_ethtool_get_regs_len(struct net_device *netdev)
{
return IGC_REGS_LEN * sizeof(u32);
}
static void igc_ethtool_get_regs(struct net_device *netdev,
struct ethtool_regs *regs, void *p)
{
struct igc_adapter *adapter = netdev_priv(netdev);
struct igc_hw *hw = &adapter->hw;
u32 *regs_buff = p;
u8 i;
memset(p, 0, IGC_REGS_LEN * sizeof(u32));
regs->version = (2u << 24) | (hw->revision_id << 16) | hw->device_id;
/* General Registers */
regs_buff[0] = rd32(IGC_CTRL);
regs_buff[1] = rd32(IGC_STATUS);
regs_buff[2] = rd32(IGC_CTRL_EXT);
regs_buff[3] = rd32(IGC_MDIC);
regs_buff[4] = rd32(IGC_CONNSW);
/* NVM Register */
regs_buff[5] = rd32(IGC_EECD);
/* Interrupt */
/* Reading EICS for EICR because they read the
* same but EICS does not clear on read
*/
regs_buff[6] = rd32(IGC_EICS);
regs_buff[7] = rd32(IGC_EICS);
regs_buff[8] = rd32(IGC_EIMS);
regs_buff[9] = rd32(IGC_EIMC);
regs_buff[10] = rd32(IGC_EIAC);
regs_buff[11] = rd32(IGC_EIAM);
/* Reading ICS for ICR because they read the
* same but ICS does not clear on read
*/
regs_buff[12] = rd32(IGC_ICS);
regs_buff[13] = rd32(IGC_ICS);
regs_buff[14] = rd32(IGC_IMS);
regs_buff[15] = rd32(IGC_IMC);
regs_buff[16] = rd32(IGC_IAC);
regs_buff[17] = rd32(IGC_IAM);
/* Flow Control */
regs_buff[18] = rd32(IGC_FCAL);
regs_buff[19] = rd32(IGC_FCAH);
regs_buff[20] = rd32(IGC_FCTTV);
regs_buff[21] = rd32(IGC_FCRTL);
regs_buff[22] = rd32(IGC_FCRTH);
regs_buff[23] = rd32(IGC_FCRTV);
/* Receive */
regs_buff[24] = rd32(IGC_RCTL);
regs_buff[25] = rd32(IGC_RXCSUM);
regs_buff[26] = rd32(IGC_RLPML);
regs_buff[27] = rd32(IGC_RFCTL);
/* Transmit */
regs_buff[28] = rd32(IGC_TCTL);
regs_buff[29] = rd32(IGC_TIPG);
/* Wake Up */
/* MAC */
/* Statistics */
regs_buff[30] = adapter->stats.crcerrs;
regs_buff[31] = adapter->stats.algnerrc;
regs_buff[32] = adapter->stats.symerrs;
regs_buff[33] = adapter->stats.rxerrc;
regs_buff[34] = adapter->stats.mpc;
regs_buff[35] = adapter->stats.scc;
regs_buff[36] = adapter->stats.ecol;
regs_buff[37] = adapter->stats.mcc;
regs_buff[38] = adapter->stats.latecol;
regs_buff[39] = adapter->stats.colc;
regs_buff[40] = adapter->stats.dc;
regs_buff[41] = adapter->stats.tncrs;
regs_buff[42] = adapter->stats.sec;
regs_buff[43] = adapter->stats.htdpmc;
regs_buff[44] = adapter->stats.rlec;
regs_buff[45] = adapter->stats.xonrxc;
regs_buff[46] = adapter->stats.xontxc;
regs_buff[47] = adapter->stats.xoffrxc;
regs_buff[48] = adapter->stats.xofftxc;
regs_buff[49] = adapter->stats.fcruc;
regs_buff[50] = adapter->stats.prc64;
regs_buff[51] = adapter->stats.prc127;
regs_buff[52] = adapter->stats.prc255;
regs_buff[53] = adapter->stats.prc511;
regs_buff[54] = adapter->stats.prc1023;
regs_buff[55] = adapter->stats.prc1522;
regs_buff[56] = adapter->stats.gprc;
regs_buff[57] = adapter->stats.bprc;
regs_buff[58] = adapter->stats.mprc;
regs_buff[59] = adapter->stats.gptc;
regs_buff[60] = adapter->stats.gorc;
regs_buff[61] = adapter->stats.gotc;
regs_buff[62] = adapter->stats.rnbc;
regs_buff[63] = adapter->stats.ruc;
regs_buff[64] = adapter->stats.rfc;
regs_buff[65] = adapter->stats.roc;
regs_buff[66] = adapter->stats.rjc;
regs_buff[67] = adapter->stats.mgprc;
regs_buff[68] = adapter->stats.mgpdc;
regs_buff[69] = adapter->stats.mgptc;
regs_buff[70] = adapter->stats.tor;
regs_buff[71] = adapter->stats.tot;
regs_buff[72] = adapter->stats.tpr;
regs_buff[73] = adapter->stats.tpt;
regs_buff[74] = adapter->stats.ptc64;
regs_buff[75] = adapter->stats.ptc127;
regs_buff[76] = adapter->stats.ptc255;
regs_buff[77] = adapter->stats.ptc511;
regs_buff[78] = adapter->stats.ptc1023;
regs_buff[79] = adapter->stats.ptc1522;
regs_buff[80] = adapter->stats.mptc;
regs_buff[81] = adapter->stats.bptc;
regs_buff[82] = adapter->stats.tsctc;
regs_buff[83] = adapter->stats.iac;
regs_buff[84] = adapter->stats.rpthc;
regs_buff[85] = adapter->stats.hgptc;
regs_buff[86] = adapter->stats.hgorc;
regs_buff[87] = adapter->stats.hgotc;
regs_buff[88] = adapter->stats.lenerrs;
regs_buff[89] = adapter->stats.scvpc;
regs_buff[90] = adapter->stats.hrmpc;
for (i = 0; i < 4; i++)
regs_buff[91 + i] = rd32(IGC_SRRCTL(i));
for (i = 0; i < 4; i++)
regs_buff[95 + i] = rd32(IGC_PSRTYPE(i));
for (i = 0; i < 4; i++)
regs_buff[99 + i] = rd32(IGC_RDBAL(i));
for (i = 0; i < 4; i++)
regs_buff[103 + i] = rd32(IGC_RDBAH(i));
for (i = 0; i < 4; i++)
regs_buff[107 + i] = rd32(IGC_RDLEN(i));
for (i = 0; i < 4; i++)
regs_buff[111 + i] = rd32(IGC_RDH(i));
for (i = 0; i < 4; i++)
regs_buff[115 + i] = rd32(IGC_RDT(i));
for (i = 0; i < 4; i++)
regs_buff[119 + i] = rd32(IGC_RXDCTL(i));
for (i = 0; i < 10; i++)
regs_buff[123 + i] = rd32(IGC_EITR(i));
for (i = 0; i < 16; i++)
regs_buff[139 + i] = rd32(IGC_RAL(i));
for (i = 0; i < 16; i++)
regs_buff[145 + i] = rd32(IGC_RAH(i));
for (i = 0; i < 4; i++)
regs_buff[149 + i] = rd32(IGC_TDBAL(i));
for (i = 0; i < 4; i++)
regs_buff[152 + i] = rd32(IGC_TDBAH(i));
for (i = 0; i < 4; i++)
regs_buff[156 + i] = rd32(IGC_TDLEN(i));
for (i = 0; i < 4; i++)
regs_buff[160 + i] = rd32(IGC_TDH(i));
for (i = 0; i < 4; i++)
regs_buff[164 + i] = rd32(IGC_TDT(i));
for (i = 0; i < 4; i++)
regs_buff[168 + i] = rd32(IGC_TXDCTL(i));
/* XXX: Due to a bug few lines above, RAL and RAH registers are
* overwritten. To preserve the ABI, we write these registers again in
* regs_buff.
*/
for (i = 0; i < 16; i++)
regs_buff[172 + i] = rd32(IGC_RAL(i));
for (i = 0; i < 16; i++)
regs_buff[188 + i] = rd32(IGC_RAH(i));
regs_buff[204] = rd32(IGC_VLANPQF);
for (i = 0; i < 8; i++)
regs_buff[205 + i] = rd32(IGC_ETQF(i));
regs_buff[213] = adapter->stats.tlpic;
regs_buff[214] = adapter->stats.rlpic;
}
static void igc_ethtool_get_wol(struct net_device *netdev,
struct ethtool_wolinfo *wol)
{
struct igc_adapter *adapter = netdev_priv(netdev);
wol->wolopts = 0;
if (!(adapter->flags & IGC_FLAG_WOL_SUPPORTED))
return;
wol->supported = WAKE_UCAST | WAKE_MCAST |
WAKE_BCAST | WAKE_MAGIC |
WAKE_PHY;
/* apply any specific unsupported masks here */
switch (adapter->hw.device_id) {
default:
break;
}
if (adapter->wol & IGC_WUFC_EX)
wol->wolopts |= WAKE_UCAST;
if (adapter->wol & IGC_WUFC_MC)
wol->wolopts |= WAKE_MCAST;
if (adapter->wol & IGC_WUFC_BC)
wol->wolopts |= WAKE_BCAST;
if (adapter->wol & IGC_WUFC_MAG)
wol->wolopts |= WAKE_MAGIC;
if (adapter->wol & IGC_WUFC_LNKC)
wol->wolopts |= WAKE_PHY;
}
static int igc_ethtool_set_wol(struct net_device *netdev,
struct ethtool_wolinfo *wol)
{
struct igc_adapter *adapter = netdev_priv(netdev);
if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE))
return -EOPNOTSUPP;
if (!(adapter->flags & IGC_FLAG_WOL_SUPPORTED))
return wol->wolopts ? -EOPNOTSUPP : 0;
/* these settings will always override what we currently have */
adapter->wol = 0;
if (wol->wolopts & WAKE_UCAST)
adapter->wol |= IGC_WUFC_EX;
if (wol->wolopts & WAKE_MCAST)
adapter->wol |= IGC_WUFC_MC;
if (wol->wolopts & WAKE_BCAST)
adapter->wol |= IGC_WUFC_BC;
if (wol->wolopts & WAKE_MAGIC)
adapter->wol |= IGC_WUFC_MAG;
if (wol->wolopts & WAKE_PHY)
adapter->wol |= IGC_WUFC_LNKC;
device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
return 0;
}
static u32 igc_ethtool_get_msglevel(struct net_device *netdev)
{
struct igc_adapter *adapter = netdev_priv(netdev);
return adapter->msg_enable;
}
static void igc_ethtool_set_msglevel(struct net_device *netdev, u32 data)
{
struct igc_adapter *adapter = netdev_priv(netdev);
adapter->msg_enable = data;
}
static int igc_ethtool_nway_reset(struct net_device *netdev)
{
struct igc_adapter *adapter = netdev_priv(netdev);
if (netif_running(netdev))
igc_reinit_locked(adapter);
return 0;
}
static u32 igc_ethtool_get_link(struct net_device *netdev)
{
struct igc_adapter *adapter = netdev_priv(netdev);
struct igc_mac_info *mac = &adapter->hw.mac;
/* If the link is not reported up to netdev, interrupts are disabled,
* and so the physical link state may have changed since we last
* looked. Set get_link_status to make sure that the true link
* state is interrogated, rather than pulling a cached and possibly
* stale link state from the driver.
*/
if (!netif_carrier_ok(netdev))
mac->get_link_status = 1;
return igc_has_link(adapter);
}
static int igc_ethtool_get_eeprom_len(struct net_device *netdev)
{
struct igc_adapter *adapter = netdev_priv(netdev);
return adapter->hw.nvm.word_size * 2;
}
static int igc_ethtool_get_eeprom(struct net_device *netdev,
struct ethtool_eeprom *eeprom, u8 *bytes)
{
struct igc_adapter *adapter = netdev_priv(netdev);
struct igc_hw *hw = &adapter->hw;
int first_word, last_word;
u16 *eeprom_buff;
int ret_val = 0;
u16 i;
if (eeprom->len == 0)
return -EINVAL;
eeprom->magic = hw->vendor_id | (hw->device_id << 16);
first_word = eeprom->offset >> 1;
last_word = (eeprom->offset + eeprom->len - 1) >> 1;
eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
GFP_KERNEL);
if (!eeprom_buff)
return -ENOMEM;
if (hw->nvm.type == igc_nvm_eeprom_spi) {
ret_val = hw->nvm.ops.read(hw, first_word,
last_word - first_word + 1,
eeprom_buff);
} else {
for (i = 0; i < last_word - first_word + 1; i++) {
ret_val = hw->nvm.ops.read(hw, first_word + i, 1,
&eeprom_buff[i]);
if (ret_val)
break;
}
}
/* Device's eeprom is always little-endian, word addressable */
for (i = 0; i < last_word - first_word + 1; i++)
le16_to_cpus(&eeprom_buff[i]);
memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1),
eeprom->len);
kfree(eeprom_buff);
return ret_val;
}
static int igc_ethtool_set_eeprom(struct net_device *netdev,
struct ethtool_eeprom *eeprom, u8 *bytes)
{
struct igc_adapter *adapter = netdev_priv(netdev);
struct igc_hw *hw = &adapter->hw;
int max_len, first_word, last_word, ret_val = 0;
u16 *eeprom_buff;
void *ptr;
u16 i;
if (eeprom->len == 0)
return -EOPNOTSUPP;
if (hw->mac.type >= igc_i225 &&
!igc_get_flash_presence_i225(hw)) {
return -EOPNOTSUPP;
}
if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
return -EFAULT;
max_len = hw->nvm.word_size * 2;
first_word = eeprom->offset >> 1;
last_word = (eeprom->offset + eeprom->len - 1) >> 1;
eeprom_buff = kmalloc(max_len, GFP_KERNEL);
if (!eeprom_buff)
return -ENOMEM;
ptr = (void *)eeprom_buff;
if (eeprom->offset & 1) {
/* need read/modify/write of first changed EEPROM word
* only the second byte of the word is being modified
*/
ret_val = hw->nvm.ops.read(hw, first_word, 1,
&eeprom_buff[0]);
ptr++;
}
if (((eeprom->offset + eeprom->len) & 1) && ret_val == 0) {
/* need read/modify/write of last changed EEPROM word
* only the first byte of the word is being modified
*/
ret_val = hw->nvm.ops.read(hw, last_word, 1,
&eeprom_buff[last_word - first_word]);
}
/* Device's eeprom is always little-endian, word addressable */
for (i = 0; i < last_word - first_word + 1; i++)
le16_to_cpus(&eeprom_buff[i]);
memcpy(ptr, bytes, eeprom->len);
for (i = 0; i < last_word - first_word + 1; i++)
eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]);
ret_val = hw->nvm.ops.write(hw, first_word,
last_word - first_word + 1, eeprom_buff);
/* Update the checksum if nvm write succeeded */
if (ret_val == 0)
hw->nvm.ops.update(hw);
kfree(eeprom_buff);
return ret_val;
}
static void igc_ethtool_get_ringparam(struct net_device *netdev,
struct ethtool_ringparam *ring)
{
struct igc_adapter *adapter = netdev_priv(netdev);
ring->rx_max_pending = IGC_MAX_RXD;
ring->tx_max_pending = IGC_MAX_TXD;
ring->rx_pending = adapter->rx_ring_count;
ring->tx_pending = adapter->tx_ring_count;
}
static int igc_ethtool_set_ringparam(struct net_device *netdev,
struct ethtool_ringparam *ring)
{
struct igc_adapter *adapter = netdev_priv(netdev);
struct igc_ring *temp_ring;
u16 new_rx_count, new_tx_count;
int i, err = 0;
if (ring->rx_mini_pending || ring->rx_jumbo_pending)
return -EINVAL;
new_rx_count = min_t(u32, ring->rx_pending, IGC_MAX_RXD);
new_rx_count = max_t(u16, new_rx_count, IGC_MIN_RXD);
new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
new_tx_count = min_t(u32, ring->tx_pending, IGC_MAX_TXD);
new_tx_count = max_t(u16, new_tx_count, IGC_MIN_TXD);
new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
if (new_tx_count == adapter->tx_ring_count &&
new_rx_count == adapter->rx_ring_count) {
/* nothing to do */
return 0;
}
while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
usleep_range(1000, 2000);
if (!netif_running(adapter->netdev)) {
for (i = 0; i < adapter->num_tx_queues; i++)
adapter->tx_ring[i]->count = new_tx_count;
for (i = 0; i < adapter->num_rx_queues; i++)
adapter->rx_ring[i]->count = new_rx_count;
adapter->tx_ring_count = new_tx_count;
adapter->rx_ring_count = new_rx_count;
goto clear_reset;
}
if (adapter->num_tx_queues > adapter->num_rx_queues)
temp_ring = vmalloc(array_size(sizeof(struct igc_ring),
adapter->num_tx_queues));
else
temp_ring = vmalloc(array_size(sizeof(struct igc_ring),
adapter->num_rx_queues));
if (!temp_ring) {
err = -ENOMEM;
goto clear_reset;
}
igc_down(adapter);
/* We can't just free everything and then setup again,
* because the ISRs in MSI-X mode get passed pointers
* to the Tx and Rx ring structs.
*/
if (new_tx_count != adapter->tx_ring_count) {
for (i = 0; i < adapter->num_tx_queues; i++) {
memcpy(&temp_ring[i], adapter->tx_ring[i],
sizeof(struct igc_ring));
temp_ring[i].count = new_tx_count;
err = igc_setup_tx_resources(&temp_ring[i]);
if (err) {
while (i) {
i--;
igc_free_tx_resources(&temp_ring[i]);
}
goto err_setup;
}
}
for (i = 0; i < adapter->num_tx_queues; i++) {
igc_free_tx_resources(adapter->tx_ring[i]);
memcpy(adapter->tx_ring[i], &temp_ring[i],
sizeof(struct igc_ring));
}
adapter->tx_ring_count = new_tx_count;
}
if (new_rx_count != adapter->rx_ring_count) {
for (i = 0; i < adapter->num_rx_queues; i++) {
memcpy(&temp_ring[i], adapter->rx_ring[i],
sizeof(struct igc_ring));
temp_ring[i].count = new_rx_count;
err = igc_setup_rx_resources(&temp_ring[i]);
if (err) {
while (i) {
i--;
igc_free_rx_resources(&temp_ring[i]);
}
goto err_setup;
}
}
for (i = 0; i < adapter->num_rx_queues; i++) {
igc_free_rx_resources(adapter->rx_ring[i]);
memcpy(adapter->rx_ring[i], &temp_ring[i],
sizeof(struct igc_ring));
}
adapter->rx_ring_count = new_rx_count;
}
err_setup:
igc_up(adapter);
vfree(temp_ring);
clear_reset:
clear_bit(__IGC_RESETTING, &adapter->state);
return err;
}
static void igc_ethtool_get_pauseparam(struct net_device *netdev,
struct ethtool_pauseparam *pause)
{
struct igc_adapter *adapter = netdev_priv(netdev);
struct igc_hw *hw = &adapter->hw;
pause->autoneg =
(adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
if (hw->fc.current_mode == igc_fc_rx_pause) {
pause->rx_pause = 1;
} else if (hw->fc.current_mode == igc_fc_tx_pause) {
pause->tx_pause = 1;
} else if (hw->fc.current_mode == igc_fc_full) {
pause->rx_pause = 1;
pause->tx_pause = 1;
}
}
static int igc_ethtool_set_pauseparam(struct net_device *netdev,
struct ethtool_pauseparam *pause)
{
struct igc_adapter *adapter = netdev_priv(netdev);
struct igc_hw *hw = &adapter->hw;
int retval = 0;
adapter->fc_autoneg = pause->autoneg;
while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
usleep_range(1000, 2000);
if (adapter->fc_autoneg == AUTONEG_ENABLE) {
hw->fc.requested_mode = igc_fc_default;
if (netif_running(adapter->netdev)) {
igc_down(adapter);
igc_up(adapter);
} else {
igc_reset(adapter);
}
} else {
if (pause->rx_pause && pause->tx_pause)
hw->fc.requested_mode = igc_fc_full;
else if (pause->rx_pause && !pause->tx_pause)
hw->fc.requested_mode = igc_fc_rx_pause;
else if (!pause->rx_pause && pause->tx_pause)
hw->fc.requested_mode = igc_fc_tx_pause;
else if (!pause->rx_pause && !pause->tx_pause)
hw->fc.requested_mode = igc_fc_none;
hw->fc.current_mode = hw->fc.requested_mode;
retval = ((hw->phy.media_type == igc_media_type_copper) ?
igc_force_mac_fc(hw) : igc_setup_link(hw));
}
clear_bit(__IGC_RESETTING, &adapter->state);
return retval;
}
static void igc_ethtool_get_strings(struct net_device *netdev, u32 stringset,
u8 *data)
{
struct igc_adapter *adapter = netdev_priv(netdev);
u8 *p = data;
int i;
switch (stringset) {
case ETH_SS_TEST:
memcpy(data, *igc_gstrings_test,
IGC_TEST_LEN * ETH_GSTRING_LEN);
break;
case ETH_SS_STATS:
for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) {
memcpy(p, igc_gstrings_stats[i].stat_string,
ETH_GSTRING_LEN);
p += ETH_GSTRING_LEN;
}
for (i = 0; i < IGC_NETDEV_STATS_LEN; i++) {
memcpy(p, igc_gstrings_net_stats[i].stat_string,
ETH_GSTRING_LEN);
p += ETH_GSTRING_LEN;
}
for (i = 0; i < adapter->num_tx_queues; i++) {
sprintf(p, "tx_queue_%u_packets", i);
p += ETH_GSTRING_LEN;
sprintf(p, "tx_queue_%u_bytes", i);
p += ETH_GSTRING_LEN;
sprintf(p, "tx_queue_%u_restart", i);
p += ETH_GSTRING_LEN;
}
for (i = 0; i < adapter->num_rx_queues; i++) {
sprintf(p, "rx_queue_%u_packets", i);
p += ETH_GSTRING_LEN;
sprintf(p, "rx_queue_%u_bytes", i);
p += ETH_GSTRING_LEN;
sprintf(p, "rx_queue_%u_drops", i);
p += ETH_GSTRING_LEN;
sprintf(p, "rx_queue_%u_csum_err", i);
p += ETH_GSTRING_LEN;
sprintf(p, "rx_queue_%u_alloc_failed", i);
p += ETH_GSTRING_LEN;
}
/* BUG_ON(p - data != IGC_STATS_LEN * ETH_GSTRING_LEN); */
break;
case ETH_SS_PRIV_FLAGS:
memcpy(data, igc_priv_flags_strings,
IGC_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN);
break;
}
}
static int igc_ethtool_get_sset_count(struct net_device *netdev, int sset)
{
switch (sset) {
case ETH_SS_STATS:
return IGC_STATS_LEN;
case ETH_SS_TEST:
return IGC_TEST_LEN;
case ETH_SS_PRIV_FLAGS:
return IGC_PRIV_FLAGS_STR_LEN;
default:
return -ENOTSUPP;
}
}
static void igc_ethtool_get_stats(struct net_device *netdev,
struct ethtool_stats *stats, u64 *data)
{
struct igc_adapter *adapter = netdev_priv(netdev);
struct rtnl_link_stats64 *net_stats = &adapter->stats64;
unsigned int start;
struct igc_ring *ring;
int i, j;
char *p;
spin_lock(&adapter->stats64_lock);
igc_update_stats(adapter);
for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) {
p = (char *)adapter + igc_gstrings_stats[i].stat_offset;
data[i] = (igc_gstrings_stats[i].sizeof_stat ==
sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
}
for (j = 0; j < IGC_NETDEV_STATS_LEN; j++, i++) {
p = (char *)net_stats + igc_gstrings_net_stats[j].stat_offset;
data[i] = (igc_gstrings_net_stats[j].sizeof_stat ==
sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
}
for (j = 0; j < adapter->num_tx_queues; j++) {
u64 restart2;
ring = adapter->tx_ring[j];
do {
start = u64_stats_fetch_begin_irq(&ring->tx_syncp);
data[i] = ring->tx_stats.packets;
data[i + 1] = ring->tx_stats.bytes;
data[i + 2] = ring->tx_stats.restart_queue;
} while (u64_stats_fetch_retry_irq(&ring->tx_syncp, start));
do {
start = u64_stats_fetch_begin_irq(&ring->tx_syncp2);
restart2 = ring->tx_stats.restart_queue2;
} while (u64_stats_fetch_retry_irq(&ring->tx_syncp2, start));
data[i + 2] += restart2;
i += IGC_TX_QUEUE_STATS_LEN;
}
for (j = 0; j < adapter->num_rx_queues; j++) {
ring = adapter->rx_ring[j];
do {
start = u64_stats_fetch_begin_irq(&ring->rx_syncp);
data[i] = ring->rx_stats.packets;
data[i + 1] = ring->rx_stats.bytes;
data[i + 2] = ring->rx_stats.drops;
data[i + 3] = ring->rx_stats.csum_err;
data[i + 4] = ring->rx_stats.alloc_failed;
} while (u64_stats_fetch_retry_irq(&ring->rx_syncp, start));
i += IGC_RX_QUEUE_STATS_LEN;
}
spin_unlock(&adapter->stats64_lock);
}
static int igc_ethtool_get_coalesce(struct net_device *netdev,
struct ethtool_coalesce *ec)
{
struct igc_adapter *adapter = netdev_priv(netdev);
if (adapter->rx_itr_setting <= 3)
ec->rx_coalesce_usecs = adapter->rx_itr_setting;
else
ec->rx_coalesce_usecs = adapter->rx_itr_setting >> 2;
if (!(adapter->flags & IGC_FLAG_QUEUE_PAIRS)) {
if (adapter->tx_itr_setting <= 3)
ec->tx_coalesce_usecs = adapter->tx_itr_setting;
else
ec->tx_coalesce_usecs = adapter->tx_itr_setting >> 2;
}
return 0;
}
static int igc_ethtool_set_coalesce(struct net_device *netdev,
struct ethtool_coalesce *ec)
{
struct igc_adapter *adapter = netdev_priv(netdev);
int i;
if (ec->rx_coalesce_usecs > IGC_MAX_ITR_USECS ||
(ec->rx_coalesce_usecs > 3 &&
ec->rx_coalesce_usecs < IGC_MIN_ITR_USECS) ||
ec->rx_coalesce_usecs == 2)
return -EINVAL;
if (ec->tx_coalesce_usecs > IGC_MAX_ITR_USECS ||
(ec->tx_coalesce_usecs > 3 &&
ec->tx_coalesce_usecs < IGC_MIN_ITR_USECS) ||
ec->tx_coalesce_usecs == 2)
return -EINVAL;
if ((adapter->flags & IGC_FLAG_QUEUE_PAIRS) && ec->tx_coalesce_usecs)
return -EINVAL;
/* If ITR is disabled, disable DMAC */
if (ec->rx_coalesce_usecs == 0) {
if (adapter->flags & IGC_FLAG_DMAC)
adapter->flags &= ~IGC_FLAG_DMAC;
}
/* convert to rate of irq's per second */
if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3)
adapter->rx_itr_setting = ec->rx_coalesce_usecs;
else
adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2;
/* convert to rate of irq's per second */
if (adapter->flags & IGC_FLAG_QUEUE_PAIRS)
adapter->tx_itr_setting = adapter->rx_itr_setting;
else if (ec->tx_coalesce_usecs && ec->tx_coalesce_usecs <= 3)
adapter->tx_itr_setting = ec->tx_coalesce_usecs;
else
adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2;
for (i = 0; i < adapter->num_q_vectors; i++) {
struct igc_q_vector *q_vector = adapter->q_vector[i];
q_vector->tx.work_limit = adapter->tx_work_limit;
if (q_vector->rx.ring)
q_vector->itr_val = adapter->rx_itr_setting;
else
q_vector->itr_val = adapter->tx_itr_setting;
if (q_vector->itr_val && q_vector->itr_val <= 3)
q_vector->itr_val = IGC_START_ITR;
q_vector->set_itr = 1;
}
return 0;
}
#define ETHER_TYPE_FULL_MASK ((__force __be16)~0)
static int igc_ethtool_get_nfc_rule(struct igc_adapter *adapter,
struct ethtool_rxnfc *cmd)
{
struct ethtool_rx_flow_spec *fsp = &cmd->fs;
struct igc_nfc_rule *rule = NULL;
cmd->data = IGC_MAX_RXNFC_RULES;
mutex_lock(&adapter->nfc_rule_lock);
rule = igc_get_nfc_rule(adapter, fsp->location);
if (!rule)
goto out;
fsp->flow_type = ETHER_FLOW;
fsp->ring_cookie = rule->action;
if (rule->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE) {
fsp->h_u.ether_spec.h_proto = htons(rule->filter.etype);
fsp->m_u.ether_spec.h_proto = ETHER_TYPE_FULL_MASK;
}
if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) {
fsp->flow_type |= FLOW_EXT;
fsp->h_ext.vlan_tci = htons(rule->filter.vlan_tci);
fsp->m_ext.vlan_tci = htons(VLAN_PRIO_MASK);
}
if (rule->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) {
ether_addr_copy(fsp->h_u.ether_spec.h_dest,
rule->filter.dst_addr);
eth_broadcast_addr(fsp->m_u.ether_spec.h_dest);
}
if (rule->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) {
ether_addr_copy(fsp->h_u.ether_spec.h_source,
rule->filter.src_addr);