| /******************************************************************************* |
| |
| Intel(R) 82576 Virtual Function Linux driver |
| Copyright(c) 2009 - 2012 Intel Corporation. |
| |
| This program is free software; you can redistribute it and/or modify it |
| under the terms and conditions of the GNU General Public License, |
| version 2, as published by the Free Software Foundation. |
| |
| This program is distributed in the hope it will be useful, but WITHOUT |
| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| more details. |
| |
| You should have received a copy of the GNU General Public License along with |
| this program; if not, write to the Free Software Foundation, Inc., |
| 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. |
| |
| The full GNU General Public License is included in this distribution in |
| the file called "COPYING". |
| |
| Contact Information: |
| e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> |
| Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| |
| *******************************************************************************/ |
| |
| /* ethtool support for igbvf */ |
| |
| #include <linux/netdevice.h> |
| #include <linux/ethtool.h> |
| #include <linux/pci.h> |
| #include <linux/vmalloc.h> |
| #include <linux/delay.h> |
| |
| #include "igbvf.h" |
| #include <linux/if_vlan.h> |
| |
| |
| struct igbvf_stats { |
| char stat_string[ETH_GSTRING_LEN]; |
| int sizeof_stat; |
| int stat_offset; |
| int base_stat_offset; |
| }; |
| |
| #define IGBVF_STAT(current, base) \ |
| sizeof(((struct igbvf_adapter *)0)->current), \ |
| offsetof(struct igbvf_adapter, current), \ |
| offsetof(struct igbvf_adapter, base) |
| |
| static const struct igbvf_stats igbvf_gstrings_stats[] = { |
| { "rx_packets", IGBVF_STAT(stats.gprc, stats.base_gprc) }, |
| { "tx_packets", IGBVF_STAT(stats.gptc, stats.base_gptc) }, |
| { "rx_bytes", IGBVF_STAT(stats.gorc, stats.base_gorc) }, |
| { "tx_bytes", IGBVF_STAT(stats.gotc, stats.base_gotc) }, |
| { "multicast", IGBVF_STAT(stats.mprc, stats.base_mprc) }, |
| { "lbrx_bytes", IGBVF_STAT(stats.gorlbc, stats.base_gorlbc) }, |
| { "lbrx_packets", IGBVF_STAT(stats.gprlbc, stats.base_gprlbc) }, |
| { "tx_restart_queue", IGBVF_STAT(restart_queue, zero_base) }, |
| { "rx_long_byte_count", IGBVF_STAT(stats.gorc, stats.base_gorc) }, |
| { "rx_csum_offload_good", IGBVF_STAT(hw_csum_good, zero_base) }, |
| { "rx_csum_offload_errors", IGBVF_STAT(hw_csum_err, zero_base) }, |
| { "rx_header_split", IGBVF_STAT(rx_hdr_split, zero_base) }, |
| { "alloc_rx_buff_failed", IGBVF_STAT(alloc_rx_buff_failed, zero_base) }, |
| }; |
| |
| #define IGBVF_GLOBAL_STATS_LEN ARRAY_SIZE(igbvf_gstrings_stats) |
| |
| static const char igbvf_gstrings_test[][ETH_GSTRING_LEN] = { |
| "Link test (on/offline)" |
| }; |
| |
| #define IGBVF_TEST_LEN ARRAY_SIZE(igbvf_gstrings_test) |
| |
| static int igbvf_get_settings(struct net_device *netdev, |
| struct ethtool_cmd *ecmd) |
| { |
| struct igbvf_adapter *adapter = netdev_priv(netdev); |
| struct e1000_hw *hw = &adapter->hw; |
| u32 status; |
| |
| ecmd->supported = SUPPORTED_1000baseT_Full; |
| |
| ecmd->advertising = ADVERTISED_1000baseT_Full; |
| |
| ecmd->port = -1; |
| ecmd->transceiver = XCVR_DUMMY1; |
| |
| status = er32(STATUS); |
| if (status & E1000_STATUS_LU) { |
| if (status & E1000_STATUS_SPEED_1000) |
| ethtool_cmd_speed_set(ecmd, SPEED_1000); |
| else if (status & E1000_STATUS_SPEED_100) |
| ethtool_cmd_speed_set(ecmd, SPEED_100); |
| else |
| ethtool_cmd_speed_set(ecmd, SPEED_10); |
| |
| if (status & E1000_STATUS_FD) |
| ecmd->duplex = DUPLEX_FULL; |
| else |
| ecmd->duplex = DUPLEX_HALF; |
| } else { |
| ethtool_cmd_speed_set(ecmd, -1); |
| ecmd->duplex = -1; |
| } |
| |
| ecmd->autoneg = AUTONEG_DISABLE; |
| |
| return 0; |
| } |
| |
| static int igbvf_set_settings(struct net_device *netdev, |
| struct ethtool_cmd *ecmd) |
| { |
| return -EOPNOTSUPP; |
| } |
| |
| static void igbvf_get_pauseparam(struct net_device *netdev, |
| struct ethtool_pauseparam *pause) |
| { |
| } |
| |
| static int igbvf_set_pauseparam(struct net_device *netdev, |
| struct ethtool_pauseparam *pause) |
| { |
| return -EOPNOTSUPP; |
| } |
| |
| static u32 igbvf_get_msglevel(struct net_device *netdev) |
| { |
| struct igbvf_adapter *adapter = netdev_priv(netdev); |
| return adapter->msg_enable; |
| } |
| |
| static void igbvf_set_msglevel(struct net_device *netdev, u32 data) |
| { |
| struct igbvf_adapter *adapter = netdev_priv(netdev); |
| adapter->msg_enable = data; |
| } |
| |
| static int igbvf_get_regs_len(struct net_device *netdev) |
| { |
| #define IGBVF_REGS_LEN 8 |
| return IGBVF_REGS_LEN * sizeof(u32); |
| } |
| |
| static void igbvf_get_regs(struct net_device *netdev, |
| struct ethtool_regs *regs, void *p) |
| { |
| struct igbvf_adapter *adapter = netdev_priv(netdev); |
| struct e1000_hw *hw = &adapter->hw; |
| u32 *regs_buff = p; |
| |
| memset(p, 0, IGBVF_REGS_LEN * sizeof(u32)); |
| |
| regs->version = (1 << 24) | (adapter->pdev->revision << 16) | |
| adapter->pdev->device; |
| |
| regs_buff[0] = er32(CTRL); |
| regs_buff[1] = er32(STATUS); |
| |
| regs_buff[2] = er32(RDLEN(0)); |
| regs_buff[3] = er32(RDH(0)); |
| regs_buff[4] = er32(RDT(0)); |
| |
| regs_buff[5] = er32(TDLEN(0)); |
| regs_buff[6] = er32(TDH(0)); |
| regs_buff[7] = er32(TDT(0)); |
| } |
| |
| static int igbvf_get_eeprom_len(struct net_device *netdev) |
| { |
| return 0; |
| } |
| |
| static int igbvf_get_eeprom(struct net_device *netdev, |
| struct ethtool_eeprom *eeprom, u8 *bytes) |
| { |
| return -EOPNOTSUPP; |
| } |
| |
| static int igbvf_set_eeprom(struct net_device *netdev, |
| struct ethtool_eeprom *eeprom, u8 *bytes) |
| { |
| return -EOPNOTSUPP; |
| } |
| |
| static void igbvf_get_drvinfo(struct net_device *netdev, |
| struct ethtool_drvinfo *drvinfo) |
| { |
| struct igbvf_adapter *adapter = netdev_priv(netdev); |
| |
| strlcpy(drvinfo->driver, igbvf_driver_name, sizeof(drvinfo->driver)); |
| strlcpy(drvinfo->version, igbvf_driver_version, |
| sizeof(drvinfo->version)); |
| strlcpy(drvinfo->bus_info, pci_name(adapter->pdev), |
| sizeof(drvinfo->bus_info)); |
| drvinfo->regdump_len = igbvf_get_regs_len(netdev); |
| drvinfo->eedump_len = igbvf_get_eeprom_len(netdev); |
| } |
| |
| static void igbvf_get_ringparam(struct net_device *netdev, |
| struct ethtool_ringparam *ring) |
| { |
| struct igbvf_adapter *adapter = netdev_priv(netdev); |
| struct igbvf_ring *tx_ring = adapter->tx_ring; |
| struct igbvf_ring *rx_ring = adapter->rx_ring; |
| |
| ring->rx_max_pending = IGBVF_MAX_RXD; |
| ring->tx_max_pending = IGBVF_MAX_TXD; |
| ring->rx_pending = rx_ring->count; |
| ring->tx_pending = tx_ring->count; |
| } |
| |
| static int igbvf_set_ringparam(struct net_device *netdev, |
| struct ethtool_ringparam *ring) |
| { |
| struct igbvf_adapter *adapter = netdev_priv(netdev); |
| struct igbvf_ring *temp_ring; |
| int err = 0; |
| u32 new_rx_count, new_tx_count; |
| |
| if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) |
| return -EINVAL; |
| |
| new_rx_count = max(ring->rx_pending, (u32)IGBVF_MIN_RXD); |
| new_rx_count = min(new_rx_count, (u32)IGBVF_MAX_RXD); |
| new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE); |
| |
| new_tx_count = max(ring->tx_pending, (u32)IGBVF_MIN_TXD); |
| new_tx_count = min(new_tx_count, (u32)IGBVF_MAX_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(__IGBVF_RESETTING, &adapter->state)) |
| msleep(1); |
| |
| if (!netif_running(adapter->netdev)) { |
| adapter->tx_ring->count = new_tx_count; |
| adapter->rx_ring->count = new_rx_count; |
| goto clear_reset; |
| } |
| |
| temp_ring = vmalloc(sizeof(struct igbvf_ring)); |
| if (!temp_ring) { |
| err = -ENOMEM; |
| goto clear_reset; |
| } |
| |
| igbvf_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) { |
| memcpy(temp_ring, adapter->tx_ring, sizeof(struct igbvf_ring)); |
| |
| temp_ring->count = new_tx_count; |
| err = igbvf_setup_tx_resources(adapter, temp_ring); |
| if (err) |
| goto err_setup; |
| |
| igbvf_free_tx_resources(adapter->tx_ring); |
| |
| memcpy(adapter->tx_ring, temp_ring, sizeof(struct igbvf_ring)); |
| } |
| |
| if (new_rx_count != adapter->rx_ring->count) { |
| memcpy(temp_ring, adapter->rx_ring, sizeof(struct igbvf_ring)); |
| |
| temp_ring->count = new_rx_count; |
| err = igbvf_setup_rx_resources(adapter, temp_ring); |
| if (err) |
| goto err_setup; |
| |
| igbvf_free_rx_resources(adapter->rx_ring); |
| |
| memcpy(adapter->rx_ring, temp_ring,sizeof(struct igbvf_ring)); |
| } |
| err_setup: |
| igbvf_up(adapter); |
| vfree(temp_ring); |
| clear_reset: |
| clear_bit(__IGBVF_RESETTING, &adapter->state); |
| return err; |
| } |
| |
| static int igbvf_link_test(struct igbvf_adapter *adapter, u64 *data) |
| { |
| struct e1000_hw *hw = &adapter->hw; |
| *data = 0; |
| |
| hw->mac.ops.check_for_link(hw); |
| |
| if (!(er32(STATUS) & E1000_STATUS_LU)) |
| *data = 1; |
| |
| return *data; |
| } |
| |
| static void igbvf_diag_test(struct net_device *netdev, |
| struct ethtool_test *eth_test, u64 *data) |
| { |
| struct igbvf_adapter *adapter = netdev_priv(netdev); |
| |
| set_bit(__IGBVF_TESTING, &adapter->state); |
| |
| /* |
| * Link test performed before hardware reset so autoneg doesn't |
| * interfere with test result |
| */ |
| if (igbvf_link_test(adapter, &data[0])) |
| eth_test->flags |= ETH_TEST_FL_FAILED; |
| |
| clear_bit(__IGBVF_TESTING, &adapter->state); |
| msleep_interruptible(4 * 1000); |
| } |
| |
| static void igbvf_get_wol(struct net_device *netdev, |
| struct ethtool_wolinfo *wol) |
| { |
| wol->supported = 0; |
| wol->wolopts = 0; |
| } |
| |
| static int igbvf_set_wol(struct net_device *netdev, |
| struct ethtool_wolinfo *wol) |
| { |
| return -EOPNOTSUPP; |
| } |
| |
| static int igbvf_get_coalesce(struct net_device *netdev, |
| struct ethtool_coalesce *ec) |
| { |
| struct igbvf_adapter *adapter = netdev_priv(netdev); |
| |
| if (adapter->requested_itr <= 3) |
| ec->rx_coalesce_usecs = adapter->requested_itr; |
| else |
| ec->rx_coalesce_usecs = adapter->current_itr >> 2; |
| |
| return 0; |
| } |
| |
| static int igbvf_set_coalesce(struct net_device *netdev, |
| struct ethtool_coalesce *ec) |
| { |
| struct igbvf_adapter *adapter = netdev_priv(netdev); |
| struct e1000_hw *hw = &adapter->hw; |
| |
| if ((ec->rx_coalesce_usecs >= IGBVF_MIN_ITR_USECS) && |
| (ec->rx_coalesce_usecs <= IGBVF_MAX_ITR_USECS)) { |
| adapter->current_itr = ec->rx_coalesce_usecs << 2; |
| adapter->requested_itr = 1000000000 / |
| (adapter->current_itr * 256); |
| } else if ((ec->rx_coalesce_usecs == 3) || |
| (ec->rx_coalesce_usecs == 2)) { |
| adapter->current_itr = IGBVF_START_ITR; |
| adapter->requested_itr = ec->rx_coalesce_usecs; |
| } else if (ec->rx_coalesce_usecs == 0) { |
| /* |
| * The user's desire is to turn off interrupt throttling |
| * altogether, but due to HW limitations, we can't do that. |
| * Instead we set a very small value in EITR, which would |
| * allow ~967k interrupts per second, but allow the adapter's |
| * internal clocking to still function properly. |
| */ |
| adapter->current_itr = 4; |
| adapter->requested_itr = 1000000000 / |
| (adapter->current_itr * 256); |
| } else |
| return -EINVAL; |
| |
| writel(adapter->current_itr, |
| hw->hw_addr + adapter->rx_ring->itr_register); |
| |
| return 0; |
| } |
| |
| static int igbvf_nway_reset(struct net_device *netdev) |
| { |
| struct igbvf_adapter *adapter = netdev_priv(netdev); |
| if (netif_running(netdev)) |
| igbvf_reinit_locked(adapter); |
| return 0; |
| } |
| |
| |
| static void igbvf_get_ethtool_stats(struct net_device *netdev, |
| struct ethtool_stats *stats, |
| u64 *data) |
| { |
| struct igbvf_adapter *adapter = netdev_priv(netdev); |
| int i; |
| |
| igbvf_update_stats(adapter); |
| for (i = 0; i < IGBVF_GLOBAL_STATS_LEN; i++) { |
| char *p = (char *)adapter + |
| igbvf_gstrings_stats[i].stat_offset; |
| char *b = (char *)adapter + |
| igbvf_gstrings_stats[i].base_stat_offset; |
| data[i] = ((igbvf_gstrings_stats[i].sizeof_stat == |
| sizeof(u64)) ? (*(u64 *)p - *(u64 *)b) : |
| (*(u32 *)p - *(u32 *)b)); |
| } |
| |
| } |
| |
| static int igbvf_get_sset_count(struct net_device *dev, int stringset) |
| { |
| switch(stringset) { |
| case ETH_SS_TEST: |
| return IGBVF_TEST_LEN; |
| case ETH_SS_STATS: |
| return IGBVF_GLOBAL_STATS_LEN; |
| default: |
| return -EINVAL; |
| } |
| } |
| |
| static void igbvf_get_strings(struct net_device *netdev, u32 stringset, |
| u8 *data) |
| { |
| u8 *p = data; |
| int i; |
| |
| switch (stringset) { |
| case ETH_SS_TEST: |
| memcpy(data, *igbvf_gstrings_test, sizeof(igbvf_gstrings_test)); |
| break; |
| case ETH_SS_STATS: |
| for (i = 0; i < IGBVF_GLOBAL_STATS_LEN; i++) { |
| memcpy(p, igbvf_gstrings_stats[i].stat_string, |
| ETH_GSTRING_LEN); |
| p += ETH_GSTRING_LEN; |
| } |
| break; |
| } |
| } |
| |
| static const struct ethtool_ops igbvf_ethtool_ops = { |
| .get_settings = igbvf_get_settings, |
| .set_settings = igbvf_set_settings, |
| .get_drvinfo = igbvf_get_drvinfo, |
| .get_regs_len = igbvf_get_regs_len, |
| .get_regs = igbvf_get_regs, |
| .get_wol = igbvf_get_wol, |
| .set_wol = igbvf_set_wol, |
| .get_msglevel = igbvf_get_msglevel, |
| .set_msglevel = igbvf_set_msglevel, |
| .nway_reset = igbvf_nway_reset, |
| .get_link = ethtool_op_get_link, |
| .get_eeprom_len = igbvf_get_eeprom_len, |
| .get_eeprom = igbvf_get_eeprom, |
| .set_eeprom = igbvf_set_eeprom, |
| .get_ringparam = igbvf_get_ringparam, |
| .set_ringparam = igbvf_set_ringparam, |
| .get_pauseparam = igbvf_get_pauseparam, |
| .set_pauseparam = igbvf_set_pauseparam, |
| .self_test = igbvf_diag_test, |
| .get_sset_count = igbvf_get_sset_count, |
| .get_strings = igbvf_get_strings, |
| .get_ethtool_stats = igbvf_get_ethtool_stats, |
| .get_coalesce = igbvf_get_coalesce, |
| .set_coalesce = igbvf_set_coalesce, |
| }; |
| |
| void igbvf_set_ethtool_ops(struct net_device *netdev) |
| { |
| netdev->ethtool_ops = &igbvf_ethtool_ops; |
| } |