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Diffstat (limited to 'drivers/net/ethernet/intel/igc/igc_ethtool.c')
-rw-r--r--drivers/net/ethernet/intel/igc/igc_ethtool.c2041
1 files changed, 2041 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/igc/igc_ethtool.c b/drivers/net/ethernet/intel/igc/igc_ethtool.c
new file mode 100644
index 000000000..2bee9cace
--- /dev/null
+++ b/drivers/net/ethernet/intel/igc/igc_ethtool.c
@@ -0,0 +1,2041 @@
+// 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"
+
+/* forward declaration */
+struct igc_stats {
+ char stat_string[ETH_GSTRING_LEN];
+ int sizeof_stat;
+ int stat_offset;
+};
+
+#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),
+ IGC_STAT("tx_lpi_counter", stats.tlpic),
+ IGC_STAT("rx_lpi_counter", stats.rlpic),
+ IGC_STAT("qbv_config_change_errors", qbv_config_change_errors),
+};
+
+#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));
+
+ /* 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 | WAKE_FILTER))
+ 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++)
+ cpu_to_le16s(&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 kernel_ethtool_ringparam *kernel_ering,
+ struct netlink_ext_ack *extack)
+{
+ 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 kernel_ethtool_ringparam *kernel_ering,
+ struct netlink_ext_ack *extack)
+{
+ 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++)
+ ethtool_sprintf(&p, igc_gstrings_stats[i].stat_string);
+ for (i = 0; i < IGC_NETDEV_STATS_LEN; i++)
+ ethtool_sprintf(&p,
+ igc_gstrings_net_stats[i].stat_string);
+ for (i = 0; i < adapter->num_tx_queues; i++) {
+ ethtool_sprintf(&p, "tx_queue_%u_packets", i);
+ ethtool_sprintf(&p, "tx_queue_%u_bytes", i);
+ ethtool_sprintf(&p, "tx_queue_%u_restart", i);
+ }
+ for (i = 0; i < adapter->num_rx_queues; i++) {
+ ethtool_sprintf(&p, "rx_queue_%u_packets", i);
+ ethtool_sprintf(&p, "rx_queue_%u_bytes", i);
+ ethtool_sprintf(&p, "rx_queue_%u_drops", i);
+ ethtool_sprintf(&p, "rx_queue_%u_csum_err", i);
+ ethtool_sprintf(&p, "rx_queue_%u_alloc_failed", i);
+ }
+ /* 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_previous_rx_coalesce(struct igc_adapter *adapter)
+{
+ return (adapter->rx_itr_setting <= 3) ?
+ adapter->rx_itr_setting : adapter->rx_itr_setting >> 2;
+}
+
+static int igc_ethtool_get_previous_tx_coalesce(struct igc_adapter *adapter)
+{
+ return (adapter->tx_itr_setting <= 3) ?
+ adapter->tx_itr_setting : adapter->tx_itr_setting >> 2;
+}
+
+static int igc_ethtool_get_coalesce(struct net_device *netdev,
+ struct ethtool_coalesce *ec,
+ struct kernel_ethtool_coalesce *kernel_coal,
+ struct netlink_ext_ack *extack)
+{
+ struct igc_adapter *adapter = netdev_priv(netdev);
+
+ ec->rx_coalesce_usecs = igc_ethtool_get_previous_rx_coalesce(adapter);
+ ec->tx_coalesce_usecs = igc_ethtool_get_previous_tx_coalesce(adapter);
+
+ return 0;
+}
+
+static int igc_ethtool_set_coalesce(struct net_device *netdev,
+ struct ethtool_coalesce *ec,
+ struct kernel_ethtool_coalesce *kernel_coal,
+ struct netlink_ext_ack *extack)
+{
+ 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 != igc_ethtool_get_previous_tx_coalesce(adapter)) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Queue Pair mode enabled, both Rx and Tx coalescing controlled by rx-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)
+#define VLAN_TCI_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_ETYPE) {
+ fsp->flow_type |= FLOW_EXT;
+ fsp->h_ext.vlan_etype = rule->filter.vlan_etype;
+ fsp->m_ext.vlan_etype = 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(rule->filter.vlan_tci_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);
+ eth_broadcast_addr(fsp->m_u.ether_spec.h_source);
+ }
+
+ if (rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) {
+ fsp->flow_type |= FLOW_EXT;
+ memcpy(fsp->h_ext.data, rule->filter.user_data, sizeof(fsp->h_ext.data));
+ memcpy(fsp->m_ext.data, rule->filter.user_mask, sizeof(fsp->m_ext.data));
+ }
+
+ mutex_unlock(&adapter->nfc_rule_lock);
+ return 0;
+
+out:
+ mutex_unlock(&adapter->nfc_rule_lock);
+ return -EINVAL;
+}
+
+static int igc_ethtool_get_nfc_rules(struct igc_adapter *adapter,
+ struct ethtool_rxnfc *cmd,
+ u32 *rule_locs)
+{
+ struct igc_nfc_rule *rule;
+ int cnt = 0;
+
+ cmd->data = IGC_MAX_RXNFC_RULES;
+
+ mutex_lock(&adapter->nfc_rule_lock);
+
+ list_for_each_entry(rule, &adapter->nfc_rule_list, list) {
+ if (cnt == cmd->rule_cnt) {
+ mutex_unlock(&adapter->nfc_rule_lock);
+ return -EMSGSIZE;
+ }
+ rule_locs[cnt] = rule->location;
+ cnt++;
+ }
+
+ mutex_unlock(&adapter->nfc_rule_lock);
+
+ cmd->rule_cnt = cnt;
+
+ return 0;
+}
+
+static int igc_ethtool_get_rss_hash_opts(struct igc_adapter *adapter,
+ struct ethtool_rxnfc *cmd)
+{
+ cmd->data = 0;
+
+ /* Report default options for RSS on igc */
+ switch (cmd->flow_type) {
+ case TCP_V4_FLOW:
+ cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
+ fallthrough;
+ case UDP_V4_FLOW:
+ if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
+ cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
+ fallthrough;
+ case SCTP_V4_FLOW:
+ case AH_ESP_V4_FLOW:
+ case AH_V4_FLOW:
+ case ESP_V4_FLOW:
+ case IPV4_FLOW:
+ cmd->data |= RXH_IP_SRC | RXH_IP_DST;
+ break;
+ case TCP_V6_FLOW:
+ cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
+ fallthrough;
+ case UDP_V6_FLOW:
+ if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
+ cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
+ fallthrough;
+ case SCTP_V6_FLOW:
+ case AH_ESP_V6_FLOW:
+ case AH_V6_FLOW:
+ case ESP_V6_FLOW:
+ case IPV6_FLOW:
+ cmd->data |= RXH_IP_SRC | RXH_IP_DST;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int igc_ethtool_get_rxnfc(struct net_device *dev,
+ struct ethtool_rxnfc *cmd, u32 *rule_locs)
+{
+ struct igc_adapter *adapter = netdev_priv(dev);
+
+ switch (cmd->cmd) {
+ case ETHTOOL_GRXRINGS:
+ cmd->data = adapter->num_rx_queues;
+ return 0;
+ case ETHTOOL_GRXCLSRLCNT:
+ cmd->rule_cnt = adapter->nfc_rule_count;
+ return 0;
+ case ETHTOOL_GRXCLSRULE:
+ return igc_ethtool_get_nfc_rule(adapter, cmd);
+ case ETHTOOL_GRXCLSRLALL:
+ return igc_ethtool_get_nfc_rules(adapter, cmd, rule_locs);
+ case ETHTOOL_GRXFH:
+ return igc_ethtool_get_rss_hash_opts(adapter, cmd);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+#define UDP_RSS_FLAGS (IGC_FLAG_RSS_FIELD_IPV4_UDP | \
+ IGC_FLAG_RSS_FIELD_IPV6_UDP)
+static int igc_ethtool_set_rss_hash_opt(struct igc_adapter *adapter,
+ struct ethtool_rxnfc *nfc)
+{
+ u32 flags = adapter->flags;
+
+ /* RSS does not support anything other than hashing
+ * to queues on src and dst IPs and ports
+ */
+ if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
+ RXH_L4_B_0_1 | RXH_L4_B_2_3))
+ return -EINVAL;
+
+ switch (nfc->flow_type) {
+ case TCP_V4_FLOW:
+ case TCP_V6_FLOW:
+ if (!(nfc->data & RXH_IP_SRC) ||
+ !(nfc->data & RXH_IP_DST) ||
+ !(nfc->data & RXH_L4_B_0_1) ||
+ !(nfc->data & RXH_L4_B_2_3))
+ return -EINVAL;
+ break;
+ case UDP_V4_FLOW:
+ if (!(nfc->data & RXH_IP_SRC) ||
+ !(nfc->data & RXH_IP_DST))
+ return -EINVAL;
+ switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
+ case 0:
+ flags &= ~IGC_FLAG_RSS_FIELD_IPV4_UDP;
+ break;
+ case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
+ flags |= IGC_FLAG_RSS_FIELD_IPV4_UDP;
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ case UDP_V6_FLOW:
+ if (!(nfc->data & RXH_IP_SRC) ||
+ !(nfc->data & RXH_IP_DST))
+ return -EINVAL;
+ switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
+ case 0:
+ flags &= ~IGC_FLAG_RSS_FIELD_IPV6_UDP;
+ break;
+ case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
+ flags |= IGC_FLAG_RSS_FIELD_IPV6_UDP;
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ case AH_ESP_V4_FLOW:
+ case AH_V4_FLOW:
+ case ESP_V4_FLOW:
+ case SCTP_V4_FLOW:
+ case AH_ESP_V6_FLOW:
+ case AH_V6_FLOW:
+ case ESP_V6_FLOW:
+ case SCTP_V6_FLOW:
+ if (!(nfc->data & RXH_IP_SRC) ||
+ !(nfc->data & RXH_IP_DST) ||
+ (nfc->data & RXH_L4_B_0_1) ||
+ (nfc->data & RXH_L4_B_2_3))
+ return -EINVAL;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* if we changed something we need to update flags */
+ if (flags != adapter->flags) {
+ struct igc_hw *hw = &adapter->hw;
+ u32 mrqc = rd32(IGC_MRQC);
+
+ if ((flags & UDP_RSS_FLAGS) &&
+ !(adapter->flags & UDP_RSS_FLAGS))
+ netdev_err(adapter->netdev,
+ "Enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");
+
+ adapter->flags = flags;
+
+ /* Perform hash on these packet types */
+ mrqc |= IGC_MRQC_RSS_FIELD_IPV4 |
+ IGC_MRQC_RSS_FIELD_IPV4_TCP |
+ IGC_MRQC_RSS_FIELD_IPV6 |
+ IGC_MRQC_RSS_FIELD_IPV6_TCP;
+
+ mrqc &= ~(IGC_MRQC_RSS_FIELD_IPV4_UDP |
+ IGC_MRQC_RSS_FIELD_IPV6_UDP);
+
+ if (flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
+ mrqc |= IGC_MRQC_RSS_FIELD_IPV4_UDP;
+
+ if (flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
+ mrqc |= IGC_MRQC_RSS_FIELD_IPV6_UDP;
+
+ wr32(IGC_MRQC, mrqc);
+ }
+
+ return 0;
+}
+
+static void igc_ethtool_init_nfc_rule(struct igc_nfc_rule *rule,
+ const struct ethtool_rx_flow_spec *fsp)
+{
+ INIT_LIST_HEAD(&rule->list);
+
+ rule->action = fsp->ring_cookie;
+ rule->location = fsp->location;
+
+ if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci) {
+ rule->filter.vlan_tci = ntohs(fsp->h_ext.vlan_tci);
+ rule->filter.vlan_tci_mask = ntohs(fsp->m_ext.vlan_tci);
+ rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_TCI;
+ }
+
+ if (fsp->m_u.ether_spec.h_proto == ETHER_TYPE_FULL_MASK) {
+ rule->filter.etype = ntohs(fsp->h_u.ether_spec.h_proto);
+ rule->filter.match_flags = IGC_FILTER_FLAG_ETHER_TYPE;
+ }
+
+ /* Both source and destination address filters only support the full
+ * mask.
+ */
+ if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_source)) {
+ rule->filter.match_flags |= IGC_FILTER_FLAG_SRC_MAC_ADDR;
+ ether_addr_copy(rule->filter.src_addr,
+ fsp->h_u.ether_spec.h_source);
+ }
+
+ if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_dest)) {
+ rule->filter.match_flags |= IGC_FILTER_FLAG_DST_MAC_ADDR;
+ ether_addr_copy(rule->filter.dst_addr,
+ fsp->h_u.ether_spec.h_dest);
+ }
+
+ /* VLAN etype matching */
+ if ((fsp->flow_type & FLOW_EXT) && fsp->h_ext.vlan_etype) {
+ rule->filter.vlan_etype = fsp->h_ext.vlan_etype;
+ rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_ETYPE;
+ }
+
+ /* Check for user defined data */
+ if ((fsp->flow_type & FLOW_EXT) &&
+ (fsp->h_ext.data[0] || fsp->h_ext.data[1])) {
+ rule->filter.match_flags |= IGC_FILTER_FLAG_USER_DATA;
+ memcpy(rule->filter.user_data, fsp->h_ext.data, sizeof(fsp->h_ext.data));
+ memcpy(rule->filter.user_mask, fsp->m_ext.data, sizeof(fsp->m_ext.data));
+ }
+
+ /* The i225/i226 has various different filters. Flex filters provide a
+ * way to match up to the first 128 bytes of a packet. Use them for:
+ * a) For specific user data
+ * b) For VLAN EtherType
+ * c) For full TCI match
+ * d) Or in case multiple filter criteria are set
+ *
+ * Otherwise, use the simple MAC, VLAN PRIO or EtherType filters.
+ */
+ if ((rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) ||
+ (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_ETYPE) ||
+ ((rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) &&
+ rule->filter.vlan_tci_mask == ntohs(VLAN_TCI_FULL_MASK)) ||
+ (rule->filter.match_flags & (rule->filter.match_flags - 1)))
+ rule->flex = true;
+ else
+ rule->flex = false;
+}
+
+/**
+ * igc_ethtool_check_nfc_rule() - Check if NFC rule is valid
+ * @adapter: Pointer to adapter
+ * @rule: Rule under evaluation
+ *
+ * The driver doesn't support rules with multiple matches so if more than
+ * one bit in filter flags is set, @rule is considered invalid.
+ *
+ * Also, if there is already another rule with the same filter in a different
+ * location, @rule is considered invalid.
+ *
+ * Context: Expects adapter->nfc_rule_lock to be held by caller.
+ *
+ * Return: 0 in case of success, negative errno code otherwise.
+ */
+static int igc_ethtool_check_nfc_rule(struct igc_adapter *adapter,
+ struct igc_nfc_rule *rule)
+{
+ struct net_device *dev = adapter->netdev;
+ u8 flags = rule->filter.match_flags;
+ struct igc_nfc_rule *tmp;
+
+ if (!flags) {
+ netdev_dbg(dev, "Rule with no match\n");
+ return -EINVAL;
+ }
+
+ list_for_each_entry(tmp, &adapter->nfc_rule_list, list) {
+ if (!memcmp(&rule->filter, &tmp->filter,
+ sizeof(rule->filter)) &&
+ tmp->location != rule->location) {
+ netdev_dbg(dev, "Rule already exists\n");
+ return -EEXIST;
+ }
+ }
+
+ return 0;
+}
+
+static int igc_ethtool_add_nfc_rule(struct igc_adapter *adapter,
+ struct ethtool_rxnfc *cmd)
+{
+ struct net_device *netdev = adapter->netdev;
+ struct ethtool_rx_flow_spec *fsp =
+ (struct ethtool_rx_flow_spec *)&cmd->fs;
+ struct igc_nfc_rule *rule, *old_rule;
+ int err;
+
+ if (!(netdev->hw_features & NETIF_F_NTUPLE)) {
+ netdev_dbg(netdev, "N-tuple filters disabled\n");
+ return -EOPNOTSUPP;
+ }
+
+ if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW) {
+ netdev_dbg(netdev, "Only ethernet flow type is supported\n");
+ return -EOPNOTSUPP;
+ }
+
+ if (fsp->ring_cookie >= adapter->num_rx_queues) {
+ netdev_dbg(netdev, "Invalid action\n");
+ return -EINVAL;
+ }
+
+ /* There are two ways to match the VLAN TCI:
+ * 1. Match on PCP field and use vlan prio filter for it
+ * 2. Match on complete TCI field and use flex filter for it
+ */
+ if ((fsp->flow_type & FLOW_EXT) &&
+ fsp->m_ext.vlan_tci &&
+ fsp->m_ext.vlan_tci != htons(VLAN_PRIO_MASK) &&
+ fsp->m_ext.vlan_tci != VLAN_TCI_FULL_MASK) {
+ netdev_dbg(netdev, "VLAN mask not supported\n");
+ return -EOPNOTSUPP;
+ }
+
+ /* VLAN EtherType can only be matched by full mask. */
+ if ((fsp->flow_type & FLOW_EXT) &&
+ fsp->m_ext.vlan_etype &&
+ fsp->m_ext.vlan_etype != ETHER_TYPE_FULL_MASK) {
+ netdev_dbg(netdev, "VLAN EtherType mask not supported\n");
+ return -EOPNOTSUPP;
+ }
+
+ if (fsp->location >= IGC_MAX_RXNFC_RULES) {
+ netdev_dbg(netdev, "Invalid location\n");
+ return -EINVAL;
+ }
+
+ rule = kzalloc(sizeof(*rule), GFP_KERNEL);
+ if (!rule)
+ return -ENOMEM;
+
+ igc_ethtool_init_nfc_rule(rule, fsp);
+
+ mutex_lock(&adapter->nfc_rule_lock);
+
+ err = igc_ethtool_check_nfc_rule(adapter, rule);
+ if (err)
+ goto err;
+
+ old_rule = igc_get_nfc_rule(adapter, fsp->location);
+ if (old_rule)
+ igc_del_nfc_rule(adapter, old_rule);
+
+ err = igc_add_nfc_rule(adapter, rule);
+ if (err)
+ goto err;
+
+ mutex_unlock(&adapter->nfc_rule_lock);
+ return 0;
+
+err:
+ mutex_unlock(&adapter->nfc_rule_lock);
+ kfree(rule);
+ return err;
+}
+
+static int igc_ethtool_del_nfc_rule(struct igc_adapter *adapter,
+ struct ethtool_rxnfc *cmd)
+{
+ struct ethtool_rx_flow_spec *fsp =
+ (struct ethtool_rx_flow_spec *)&cmd->fs;
+ struct igc_nfc_rule *rule;
+
+ mutex_lock(&adapter->nfc_rule_lock);
+
+ rule = igc_get_nfc_rule(adapter, fsp->location);
+ if (!rule) {
+ mutex_unlock(&adapter->nfc_rule_lock);
+ return -EINVAL;
+ }
+
+ igc_del_nfc_rule(adapter, rule);
+
+ mutex_unlock(&adapter->nfc_rule_lock);
+ return 0;
+}
+
+static int igc_ethtool_set_rxnfc(struct net_device *dev,
+ struct ethtool_rxnfc *cmd)
+{
+ struct igc_adapter *adapter = netdev_priv(dev);
+
+ switch (cmd->cmd) {
+ case ETHTOOL_SRXFH:
+ return igc_ethtool_set_rss_hash_opt(adapter, cmd);
+ case ETHTOOL_SRXCLSRLINS:
+ return igc_ethtool_add_nfc_rule(adapter, cmd);
+ case ETHTOOL_SRXCLSRLDEL:
+ return igc_ethtool_del_nfc_rule(adapter, cmd);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+void igc_write_rss_indir_tbl(struct igc_adapter *adapter)
+{
+ struct igc_hw *hw = &adapter->hw;
+ u32 reg = IGC_RETA(0);
+ u32 shift = 0;
+ int i = 0;
+
+ while (i < IGC_RETA_SIZE) {
+ u32 val = 0;
+ int j;
+
+ for (j = 3; j >= 0; j--) {
+ val <<= 8;
+ val |= adapter->rss_indir_tbl[i + j];
+ }
+
+ wr32(reg, val << shift);
+ reg += 4;
+ i += 4;
+ }
+}
+
+static u32 igc_ethtool_get_rxfh_indir_size(struct net_device *netdev)
+{
+ return IGC_RETA_SIZE;
+}
+
+static int igc_ethtool_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
+ u8 *hfunc)
+{
+ struct igc_adapter *adapter = netdev_priv(netdev);
+ int i;
+
+ if (hfunc)
+ *hfunc = ETH_RSS_HASH_TOP;
+ if (!indir)
+ return 0;
+ for (i = 0; i < IGC_RETA_SIZE; i++)
+ indir[i] = adapter->rss_indir_tbl[i];
+
+ return 0;
+}
+
+static int igc_ethtool_set_rxfh(struct net_device *netdev, const u32 *indir,
+ const u8 *key, const u8 hfunc)
+{
+ struct igc_adapter *adapter = netdev_priv(netdev);
+ u32 num_queues;
+ int i;
+
+ /* We do not allow change in unsupported parameters */
+ if (key ||
+ (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
+ return -EOPNOTSUPP;
+ if (!indir)
+ return 0;
+
+ num_queues = adapter->rss_queues;
+
+ /* Verify user input. */
+ for (i = 0; i < IGC_RETA_SIZE; i++)
+ if (indir[i] >= num_queues)
+ return -EINVAL;
+
+ for (i = 0; i < IGC_RETA_SIZE; i++)
+ adapter->rss_indir_tbl[i] = indir[i];
+
+ igc_write_rss_indir_tbl(adapter);
+
+ return 0;
+}
+
+static void igc_ethtool_get_channels(struct net_device *netdev,
+ struct ethtool_channels *ch)
+{
+ struct igc_adapter *adapter = netdev_priv(netdev);
+
+ /* Report maximum channels */
+ ch->max_combined = igc_get_max_rss_queues(adapter);
+
+ /* Report info for other vector */
+ if (adapter->flags & IGC_FLAG_HAS_MSIX) {
+ ch->max_other = NON_Q_VECTORS;
+ ch->other_count = NON_Q_VECTORS;
+ }
+
+ ch->combined_count = adapter->rss_queues;
+}
+
+static int igc_ethtool_set_channels(struct net_device *netdev,
+ struct ethtool_channels *ch)
+{
+ struct igc_adapter *adapter = netdev_priv(netdev);
+ unsigned int count = ch->combined_count;
+ unsigned int max_combined = 0;
+
+ /* Verify they are not requesting separate vectors */
+ if (!count || ch->rx_count || ch->tx_count)
+ return -EINVAL;
+
+ /* Verify other_count is valid and has not been changed */
+ if (ch->other_count != NON_Q_VECTORS)
+ return -EINVAL;
+
+ /* Verify the number of channels doesn't exceed hw limits */
+ max_combined = igc_get_max_rss_queues(adapter);
+ if (count > max_combined)
+ return -EINVAL;
+
+ if (count != adapter->rss_queues) {
+ adapter->rss_queues = count;
+ igc_set_flag_queue_pairs(adapter, max_combined);
+
+ /* Hardware has to reinitialize queues and interrupts to
+ * match the new configuration.
+ */
+ return igc_reinit_queues(adapter);
+ }
+
+ return 0;
+}
+
+static int igc_ethtool_get_ts_info(struct net_device *dev,
+ struct ethtool_ts_info *info)
+{
+ struct igc_adapter *adapter = netdev_priv(dev);
+
+ if (adapter->ptp_clock)
+ info->phc_index = ptp_clock_index(adapter->ptp_clock);
+ else
+ info->phc_index = -1;
+
+ switch (adapter->hw.mac.type) {
+ case igc_i225:
+ info->so_timestamping =
+ SOF_TIMESTAMPING_TX_SOFTWARE |
+ SOF_TIMESTAMPING_RX_SOFTWARE |
+ SOF_TIMESTAMPING_SOFTWARE |
+ SOF_TIMESTAMPING_TX_HARDWARE |
+ SOF_TIMESTAMPING_RX_HARDWARE |
+ SOF_TIMESTAMPING_RAW_HARDWARE;
+
+ info->tx_types =
+ BIT(HWTSTAMP_TX_OFF) |
+ BIT(HWTSTAMP_TX_ON);
+
+ info->rx_filters = BIT(HWTSTAMP_FILTER_NONE);
+ info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL);
+
+ return 0;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static u32 igc_ethtool_get_priv_flags(struct net_device *netdev)
+{
+ struct igc_adapter *adapter = netdev_priv(netdev);
+ u32 priv_flags = 0;
+
+ if (adapter->flags & IGC_FLAG_RX_LEGACY)
+ priv_flags |= IGC_PRIV_FLAGS_LEGACY_RX;
+
+ return priv_flags;
+}
+
+static int igc_ethtool_set_priv_flags(struct net_device *netdev, u32 priv_flags)
+{
+ struct igc_adapter *adapter = netdev_priv(netdev);
+ unsigned int flags = adapter->flags;
+
+ flags &= ~IGC_FLAG_RX_LEGACY;
+ if (priv_flags & IGC_PRIV_FLAGS_LEGACY_RX)
+ flags |= IGC_FLAG_RX_LEGACY;
+
+ if (flags != adapter->flags) {
+ adapter->flags = flags;
+
+ /* reset interface to repopulate queues */
+ if (netif_running(netdev))
+ igc_reinit_locked(adapter);
+ }
+
+ return 0;
+}
+
+static int igc_ethtool_get_eee(struct net_device *netdev,
+ struct ethtool_eee *edata)
+{
+ struct igc_adapter *adapter = netdev_priv(netdev);
+ struct igc_hw *hw = &adapter->hw;
+ u32 eeer;
+
+ if (hw->dev_spec._base.eee_enable)
+ edata->advertised =
+ mmd_eee_adv_to_ethtool_adv_t(adapter->eee_advert);
+
+ *edata = adapter->eee;
+ edata->supported = SUPPORTED_Autoneg;
+
+ eeer = rd32(IGC_EEER);
+
+ /* EEE status on negotiated link */
+ if (eeer & IGC_EEER_EEE_NEG)
+ edata->eee_active = true;
+
+ if (eeer & IGC_EEER_TX_LPI_EN)
+ edata->tx_lpi_enabled = true;
+
+ edata->eee_enabled = hw->dev_spec._base.eee_enable;
+
+ edata->advertised = SUPPORTED_Autoneg;
+ edata->lp_advertised = SUPPORTED_Autoneg;
+
+ /* Report correct negotiated EEE status for devices that
+ * wrongly report EEE at half-duplex
+ */
+ if (adapter->link_duplex == HALF_DUPLEX) {
+ edata->eee_enabled = false;
+ edata->eee_active = false;
+ edata->tx_lpi_enabled = false;
+ edata->advertised &= ~edata->advertised;
+ }
+
+ return 0;
+}
+
+static int igc_ethtool_set_eee(struct net_device *netdev,
+ struct ethtool_eee *edata)
+{
+ struct igc_adapter *adapter = netdev_priv(netdev);
+ struct igc_hw *hw = &adapter->hw;
+ struct ethtool_eee eee_curr;
+ s32 ret_val;
+
+ memset(&eee_curr, 0, sizeof(struct ethtool_eee));
+
+ ret_val = igc_ethtool_get_eee(netdev, &eee_curr);
+ if (ret_val) {
+ netdev_err(netdev,
+ "Problem setting EEE advertisement options\n");
+ return -EINVAL;
+ }
+
+ if (eee_curr.eee_enabled) {
+ if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) {
+ netdev_err(netdev,
+ "Setting EEE tx-lpi is not supported\n");
+ return -EINVAL;
+ }
+
+ /* Tx LPI timer is not implemented currently */
+ if (edata->tx_lpi_timer) {
+ netdev_err(netdev,
+ "Setting EEE Tx LPI timer is not supported\n");
+ return -EINVAL;
+ }
+ } else if (!edata->eee_enabled) {
+ netdev_err(netdev,
+ "Setting EEE options are not supported with EEE disabled\n");
+ return -EINVAL;
+ }
+
+ adapter->eee_advert = ethtool_adv_to_mmd_eee_adv_t(edata->advertised);
+ if (hw->dev_spec._base.eee_enable != edata->eee_enabled) {
+ hw->dev_spec._base.eee_enable = edata->eee_enabled;
+ adapter->flags |= IGC_FLAG_EEE;
+
+ /* reset link */
+ if (netif_running(netdev))
+ igc_reinit_locked(adapter);
+ else
+ igc_reset(adapter);
+ }
+
+ return 0;
+}
+
+static int igc_ethtool_begin(struct net_device *netdev)
+{
+ struct igc_adapter *adapter = netdev_priv(netdev);
+
+ pm_runtime_get_sync(&adapter->pdev->dev);
+ return 0;
+}
+
+static void igc_ethtool_complete(struct net_device *netdev)
+{
+ struct igc_adapter *adapter = netdev_priv(netdev);
+
+ pm_runtime_put(&adapter->pdev->dev);
+}
+
+static int igc_ethtool_get_link_ksettings(struct net_device *netdev,
+ struct ethtool_link_ksettings *cmd)
+{
+ struct igc_adapter *adapter = netdev_priv(netdev);
+ struct igc_hw *hw = &adapter->hw;
+ u32 status;
+ u32 speed;
+
+ ethtool_link_ksettings_zero_link_mode(cmd, supported);
+ ethtool_link_ksettings_zero_link_mode(cmd, advertising);
+
+ /* supported link modes */
+ ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half);
+ ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Full);
+ ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Half);
+ ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Full);
+ ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full);
+ ethtool_link_ksettings_add_link_mode(cmd, supported, 2500baseT_Full);
+
+ /* twisted pair */
+ cmd->base.port = PORT_TP;
+ cmd->base.phy_address = hw->phy.addr;
+ ethtool_link_ksettings_add_link_mode(cmd, supported, TP);
+ ethtool_link_ksettings_add_link_mode(cmd, advertising, TP);
+
+ /* advertising link modes */
+ if (hw->phy.autoneg_advertised & ADVERTISE_10_HALF)
+ ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Half);
+ if (hw->phy.autoneg_advertised & ADVERTISE_10_FULL)
+ ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Full);
+ if (hw->phy.autoneg_advertised & ADVERTISE_100_HALF)
+ ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Half);
+ if (hw->phy.autoneg_advertised & ADVERTISE_100_FULL)
+ ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Full);
+ if (hw->phy.autoneg_advertised & ADVERTISE_1000_FULL)
+ ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full);
+ if (hw->phy.autoneg_advertised & ADVERTISE_2500_FULL)
+ ethtool_link_ksettings_add_link_mode(cmd, advertising, 2500baseT_Full);
+
+ /* set autoneg settings */
+ if (hw->mac.autoneg == 1) {
+ ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
+ ethtool_link_ksettings_add_link_mode(cmd, advertising,
+ Autoneg);
+ }
+
+ /* Set pause flow control settings */
+ ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
+
+ switch (hw->fc.requested_mode) {
+ case igc_fc_full:
+ ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
+ break;
+ case igc_fc_rx_pause:
+ ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
+ ethtool_link_ksettings_add_link_mode(cmd, advertising,
+ Asym_Pause);
+ break;
+ case igc_fc_tx_pause:
+ ethtool_link_ksettings_add_link_mode(cmd, advertising,
+ Asym_Pause);
+ break;
+ default:
+ break;
+ }
+
+ status = pm_runtime_suspended(&adapter->pdev->dev) ?
+ 0 : rd32(IGC_STATUS);
+
+ if (status & IGC_STATUS_LU) {
+ if (status & IGC_STATUS_SPEED_1000) {
+ /* For I225, STATUS will indicate 1G speed in both
+ * 1 Gbps and 2.5 Gbps link modes.
+ * An additional bit is used
+ * to differentiate between 1 Gbps and 2.5 Gbps.
+ */
+ if (hw->mac.type == igc_i225 &&
+ (status & IGC_STATUS_SPEED_2500)) {
+ speed = SPEED_2500;
+ } else {
+ speed = SPEED_1000;
+ }
+ } else if (status & IGC_STATUS_SPEED_100) {
+ speed = SPEED_100;
+ } else {
+ speed = SPEED_10;
+ }
+ if ((status & IGC_STATUS_FD) ||
+ hw->phy.media_type != igc_media_type_copper)
+ cmd->base.duplex = DUPLEX_FULL;
+ else
+ cmd->base.duplex = DUPLEX_HALF;
+ } else {
+ speed = SPEED_UNKNOWN;
+ cmd->base.duplex = DUPLEX_UNKNOWN;
+ }
+ cmd->base.speed = speed;
+ if (hw->mac.autoneg)
+ cmd->base.autoneg = AUTONEG_ENABLE;
+ else
+ cmd->base.autoneg = AUTONEG_DISABLE;
+
+ /* MDI-X => 2; MDI =>1; Invalid =>0 */
+ if (hw->phy.media_type == igc_media_type_copper)
+ cmd->base.eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X :
+ ETH_TP_MDI;
+ else
+ cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
+
+ if (hw->phy.mdix == AUTO_ALL_MODES)
+ cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
+ else
+ cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix;
+
+ return 0;
+}
+
+static int
+igc_ethtool_set_link_ksettings(struct net_device *netdev,
+ const struct ethtool_link_ksettings *cmd)
+{
+ struct igc_adapter *adapter = netdev_priv(netdev);
+ struct net_device *dev = adapter->netdev;
+ struct igc_hw *hw = &adapter->hw;
+ u16 advertised = 0;
+
+ /* When adapter in resetting mode, autoneg/speed/duplex
+ * cannot be changed
+ */
+ if (igc_check_reset_block(hw)) {
+ netdev_err(dev, "Cannot change link characteristics when reset is active\n");
+ return -EINVAL;
+ }
+
+ /* MDI setting is only allowed when autoneg enabled because
+ * some hardware doesn't allow MDI setting when speed or
+ * duplex is forced.
+ */
+ if (cmd->base.eth_tp_mdix_ctrl) {
+ if (cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO &&
+ cmd->base.autoneg != AUTONEG_ENABLE) {
+ netdev_err(dev, "Forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
+ return -EINVAL;
+ }
+ }
+
+ while (test_and_set_bit(__IGC_RESETTING, &adapter->state))
+ usleep_range(1000, 2000);
+
+ if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
+ 2500baseT_Full))
+ advertised |= ADVERTISE_2500_FULL;
+
+ if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
+ 1000baseT_Full))
+ advertised |= ADVERTISE_1000_FULL;
+
+ if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
+ 100baseT_Full))
+ advertised |= ADVERTISE_100_FULL;
+
+ if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
+ 100baseT_Half))
+ advertised |= ADVERTISE_100_HALF;
+
+ if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
+ 10baseT_Full))
+ advertised |= ADVERTISE_10_FULL;
+
+ if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
+ 10baseT_Half))
+ advertised |= ADVERTISE_10_HALF;
+
+ if (cmd->base.autoneg == AUTONEG_ENABLE) {
+ hw->mac.autoneg = 1;
+ hw->phy.autoneg_advertised = advertised;
+ if (adapter->fc_autoneg)
+ hw->fc.requested_mode = igc_fc_default;
+ } else {
+ netdev_info(dev, "Force mode currently not supported\n");
+ }
+
+ /* MDI-X => 2; MDI => 1; Auto => 3 */
+ if (cmd->base.eth_tp_mdix_ctrl) {
+ /* fix up the value for auto (3 => 0) as zero is mapped
+ * internally to auto
+ */
+ if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
+ hw->phy.mdix = AUTO_ALL_MODES;
+ else
+ hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl;
+ }
+
+ /* reset the link */
+ if (netif_running(adapter->netdev)) {
+ igc_down(adapter);
+ igc_up(adapter);
+ } else {
+ igc_reset(adapter);
+ }
+
+ clear_bit(__IGC_RESETTING, &adapter->state);
+
+ return 0;
+}
+
+static void igc_ethtool_diag_test(struct net_device *netdev,
+ struct ethtool_test *eth_test, u64 *data)
+{
+ struct igc_adapter *adapter = netdev_priv(netdev);
+ bool if_running = netif_running(netdev);
+
+ if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
+ netdev_info(adapter->netdev, "Offline testing starting");
+ set_bit(__IGC_TESTING, &adapter->state);
+
+ /* Link test performed before hardware reset so autoneg doesn't
+ * interfere with test result
+ */
+ if (!igc_link_test(adapter, &data[TEST_LINK]))
+ eth_test->flags |= ETH_TEST_FL_FAILED;
+
+ if (if_running)
+ igc_close(netdev);
+ else
+ igc_reset(adapter);
+
+ netdev_info(adapter->netdev, "Register testing starting");
+ if (!igc_reg_test(adapter, &data[TEST_REG]))
+ eth_test->flags |= ETH_TEST_FL_FAILED;
+
+ igc_reset(adapter);
+
+ netdev_info(adapter->netdev, "EEPROM testing starting");
+ if (!igc_eeprom_test(adapter, &data[TEST_EEP]))
+ eth_test->flags |= ETH_TEST_FL_FAILED;
+
+ igc_reset(adapter);
+
+ /* loopback and interrupt tests
+ * will be implemented in the future
+ */
+ data[TEST_LOOP] = 0;
+ data[TEST_IRQ] = 0;
+
+ clear_bit(__IGC_TESTING, &adapter->state);
+ if (if_running)
+ igc_open(netdev);
+ } else {
+ netdev_info(adapter->netdev, "Online testing starting");
+
+ /* register, eeprom, intr and loopback tests not run online */
+ data[TEST_REG] = 0;
+ data[TEST_EEP] = 0;
+ data[TEST_IRQ] = 0;
+ data[TEST_LOOP] = 0;
+
+ if (!igc_link_test(adapter, &data[TEST_LINK]))
+ eth_test->flags |= ETH_TEST_FL_FAILED;
+ }
+
+ msleep_interruptible(4 * 1000);
+}
+
+static const struct ethtool_ops igc_ethtool_ops = {
+ .supported_coalesce_params = ETHTOOL_COALESCE_USECS,
+ .get_drvinfo = igc_ethtool_get_drvinfo,
+ .get_regs_len = igc_ethtool_get_regs_len,
+ .get_regs = igc_ethtool_get_regs,
+ .get_wol = igc_ethtool_get_wol,
+ .set_wol = igc_ethtool_set_wol,
+ .get_msglevel = igc_ethtool_get_msglevel,
+ .set_msglevel = igc_ethtool_set_msglevel,
+ .nway_reset = igc_ethtool_nway_reset,
+ .get_link = igc_ethtool_get_link,
+ .get_eeprom_len = igc_ethtool_get_eeprom_len,
+ .get_eeprom = igc_ethtool_get_eeprom,
+ .set_eeprom = igc_ethtool_set_eeprom,
+ .get_ringparam = igc_ethtool_get_ringparam,
+ .set_ringparam = igc_ethtool_set_ringparam,
+ .get_pauseparam = igc_ethtool_get_pauseparam,
+ .set_pauseparam = igc_ethtool_set_pauseparam,
+ .get_strings = igc_ethtool_get_strings,
+ .get_sset_count = igc_ethtool_get_sset_count,
+ .get_ethtool_stats = igc_ethtool_get_stats,
+ .get_coalesce = igc_ethtool_get_coalesce,
+ .set_coalesce = igc_ethtool_set_coalesce,
+ .get_rxnfc = igc_ethtool_get_rxnfc,
+ .set_rxnfc = igc_ethtool_set_rxnfc,
+ .get_rxfh_indir_size = igc_ethtool_get_rxfh_indir_size,
+ .get_rxfh = igc_ethtool_get_rxfh,
+ .set_rxfh = igc_ethtool_set_rxfh,
+ .get_ts_info = igc_ethtool_get_ts_info,
+ .get_channels = igc_ethtool_get_channels,
+ .set_channels = igc_ethtool_set_channels,
+ .get_priv_flags = igc_ethtool_get_priv_flags,
+ .set_priv_flags = igc_ethtool_set_priv_flags,
+ .get_eee = igc_ethtool_get_eee,
+ .set_eee = igc_ethtool_set_eee,
+ .begin = igc_ethtool_begin,
+ .complete = igc_ethtool_complete,
+ .get_link_ksettings = igc_ethtool_get_link_ksettings,
+ .set_link_ksettings = igc_ethtool_set_link_ksettings,
+ .self_test = igc_ethtool_diag_test,
+};
+
+void igc_ethtool_set_ops(struct net_device *netdev)
+{
+ netdev->ethtool_ops = &igc_ethtool_ops;
+}