|  | /******************************************************************************* | 
|  |  | 
|  | Intel 82599 Virtual Function driver | 
|  | Copyright(c) 1999 - 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 ixgbevf */ | 
|  |  | 
|  | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | 
|  |  | 
|  | #include <linux/types.h> | 
|  | #include <linux/module.h> | 
|  | #include <linux/slab.h> | 
|  | #include <linux/pci.h> | 
|  | #include <linux/netdevice.h> | 
|  | #include <linux/ethtool.h> | 
|  | #include <linux/vmalloc.h> | 
|  | #include <linux/if_vlan.h> | 
|  | #include <linux/uaccess.h> | 
|  |  | 
|  | #include "ixgbevf.h" | 
|  |  | 
|  | #define IXGBE_ALL_RAR_ENTRIES 16 | 
|  |  | 
|  | struct ixgbe_stats { | 
|  | char stat_string[ETH_GSTRING_LEN]; | 
|  | int sizeof_stat; | 
|  | int stat_offset; | 
|  | int base_stat_offset; | 
|  | int saved_reset_offset; | 
|  | }; | 
|  |  | 
|  | #define IXGBEVF_STAT(m, b, r)  sizeof(((struct ixgbevf_adapter *)0)->m), \ | 
|  | offsetof(struct ixgbevf_adapter, m),         \ | 
|  | offsetof(struct ixgbevf_adapter, b),         \ | 
|  | offsetof(struct ixgbevf_adapter, r) | 
|  |  | 
|  | static const struct ixgbe_stats ixgbe_gstrings_stats[] = { | 
|  | {"rx_packets", IXGBEVF_STAT(stats.vfgprc, stats.base_vfgprc, | 
|  | stats.saved_reset_vfgprc)}, | 
|  | {"tx_packets", IXGBEVF_STAT(stats.vfgptc, stats.base_vfgptc, | 
|  | stats.saved_reset_vfgptc)}, | 
|  | {"rx_bytes", IXGBEVF_STAT(stats.vfgorc, stats.base_vfgorc, | 
|  | stats.saved_reset_vfgorc)}, | 
|  | {"tx_bytes", IXGBEVF_STAT(stats.vfgotc, stats.base_vfgotc, | 
|  | stats.saved_reset_vfgotc)}, | 
|  | {"tx_busy", IXGBEVF_STAT(tx_busy, zero_base, zero_base)}, | 
|  | {"multicast", IXGBEVF_STAT(stats.vfmprc, stats.base_vfmprc, | 
|  | stats.saved_reset_vfmprc)}, | 
|  | {"rx_csum_offload_good", IXGBEVF_STAT(hw_csum_rx_good, zero_base, | 
|  | zero_base)}, | 
|  | {"rx_csum_offload_errors", IXGBEVF_STAT(hw_csum_rx_error, zero_base, | 
|  | zero_base)}, | 
|  | {"tx_csum_offload_ctxt", IXGBEVF_STAT(hw_csum_tx_good, zero_base, | 
|  | zero_base)}, | 
|  | }; | 
|  |  | 
|  | #define IXGBE_QUEUE_STATS_LEN 0 | 
|  | #define IXGBE_GLOBAL_STATS_LEN	ARRAY_SIZE(ixgbe_gstrings_stats) | 
|  |  | 
|  | #define IXGBEVF_STATS_LEN (IXGBE_GLOBAL_STATS_LEN + IXGBE_QUEUE_STATS_LEN) | 
|  | static const char ixgbe_gstrings_test[][ETH_GSTRING_LEN] = { | 
|  | "Register test  (offline)", | 
|  | "Link test   (on/offline)" | 
|  | }; | 
|  | #define IXGBE_TEST_LEN (sizeof(ixgbe_gstrings_test) / ETH_GSTRING_LEN) | 
|  |  | 
|  | static int ixgbevf_get_settings(struct net_device *netdev, | 
|  | struct ethtool_cmd *ecmd) | 
|  | { | 
|  | struct ixgbevf_adapter *adapter = netdev_priv(netdev); | 
|  | struct ixgbe_hw *hw = &adapter->hw; | 
|  | u32 link_speed = 0; | 
|  | bool link_up; | 
|  |  | 
|  | ecmd->supported = SUPPORTED_10000baseT_Full; | 
|  | ecmd->autoneg = AUTONEG_DISABLE; | 
|  | ecmd->transceiver = XCVR_DUMMY1; | 
|  | ecmd->port = -1; | 
|  |  | 
|  | hw->mac.get_link_status = 1; | 
|  | hw->mac.ops.check_link(hw, &link_speed, &link_up, false); | 
|  |  | 
|  | if (link_up) { | 
|  | __u32 speed = SPEED_10000; | 
|  | switch (link_speed) { | 
|  | case IXGBE_LINK_SPEED_10GB_FULL: | 
|  | speed = SPEED_10000; | 
|  | break; | 
|  | case IXGBE_LINK_SPEED_1GB_FULL: | 
|  | speed = SPEED_1000; | 
|  | break; | 
|  | case IXGBE_LINK_SPEED_100_FULL: | 
|  | speed = SPEED_100; | 
|  | break; | 
|  | } | 
|  |  | 
|  | ethtool_cmd_speed_set(ecmd, speed); | 
|  | ecmd->duplex = DUPLEX_FULL; | 
|  | } else { | 
|  | ethtool_cmd_speed_set(ecmd, -1); | 
|  | ecmd->duplex = -1; | 
|  | } | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | static u32 ixgbevf_get_msglevel(struct net_device *netdev) | 
|  | { | 
|  | struct ixgbevf_adapter *adapter = netdev_priv(netdev); | 
|  | return adapter->msg_enable; | 
|  | } | 
|  |  | 
|  | static void ixgbevf_set_msglevel(struct net_device *netdev, u32 data) | 
|  | { | 
|  | struct ixgbevf_adapter *adapter = netdev_priv(netdev); | 
|  | adapter->msg_enable = data; | 
|  | } | 
|  |  | 
|  | #define IXGBE_GET_STAT(_A_, _R_) (_A_->stats._R_) | 
|  |  | 
|  | static char *ixgbevf_reg_names[] = { | 
|  | "IXGBE_VFCTRL", | 
|  | "IXGBE_VFSTATUS", | 
|  | "IXGBE_VFLINKS", | 
|  | "IXGBE_VFRXMEMWRAP", | 
|  | "IXGBE_VFFRTIMER", | 
|  | "IXGBE_VTEICR", | 
|  | "IXGBE_VTEICS", | 
|  | "IXGBE_VTEIMS", | 
|  | "IXGBE_VTEIMC", | 
|  | "IXGBE_VTEIAC", | 
|  | "IXGBE_VTEIAM", | 
|  | "IXGBE_VTEITR", | 
|  | "IXGBE_VTIVAR", | 
|  | "IXGBE_VTIVAR_MISC", | 
|  | "IXGBE_VFRDBAL0", | 
|  | "IXGBE_VFRDBAL1", | 
|  | "IXGBE_VFRDBAH0", | 
|  | "IXGBE_VFRDBAH1", | 
|  | "IXGBE_VFRDLEN0", | 
|  | "IXGBE_VFRDLEN1", | 
|  | "IXGBE_VFRDH0", | 
|  | "IXGBE_VFRDH1", | 
|  | "IXGBE_VFRDT0", | 
|  | "IXGBE_VFRDT1", | 
|  | "IXGBE_VFRXDCTL0", | 
|  | "IXGBE_VFRXDCTL1", | 
|  | "IXGBE_VFSRRCTL0", | 
|  | "IXGBE_VFSRRCTL1", | 
|  | "IXGBE_VFPSRTYPE", | 
|  | "IXGBE_VFTDBAL0", | 
|  | "IXGBE_VFTDBAL1", | 
|  | "IXGBE_VFTDBAH0", | 
|  | "IXGBE_VFTDBAH1", | 
|  | "IXGBE_VFTDLEN0", | 
|  | "IXGBE_VFTDLEN1", | 
|  | "IXGBE_VFTDH0", | 
|  | "IXGBE_VFTDH1", | 
|  | "IXGBE_VFTDT0", | 
|  | "IXGBE_VFTDT1", | 
|  | "IXGBE_VFTXDCTL0", | 
|  | "IXGBE_VFTXDCTL1", | 
|  | "IXGBE_VFTDWBAL0", | 
|  | "IXGBE_VFTDWBAL1", | 
|  | "IXGBE_VFTDWBAH0", | 
|  | "IXGBE_VFTDWBAH1" | 
|  | }; | 
|  |  | 
|  |  | 
|  | static int ixgbevf_get_regs_len(struct net_device *netdev) | 
|  | { | 
|  | return (ARRAY_SIZE(ixgbevf_reg_names)) * sizeof(u32); | 
|  | } | 
|  |  | 
|  | static void ixgbevf_get_regs(struct net_device *netdev, | 
|  | struct ethtool_regs *regs, | 
|  | void *p) | 
|  | { | 
|  | struct ixgbevf_adapter *adapter = netdev_priv(netdev); | 
|  | struct ixgbe_hw *hw = &adapter->hw; | 
|  | u32 *regs_buff = p; | 
|  | u32 regs_len = ixgbevf_get_regs_len(netdev); | 
|  | u8 i; | 
|  |  | 
|  | memset(p, 0, regs_len); | 
|  |  | 
|  | regs->version = (1 << 24) | hw->revision_id << 16 | hw->device_id; | 
|  |  | 
|  | /* General Registers */ | 
|  | regs_buff[0] = IXGBE_READ_REG(hw, IXGBE_VFCTRL); | 
|  | regs_buff[1] = IXGBE_READ_REG(hw, IXGBE_VFSTATUS); | 
|  | regs_buff[2] = IXGBE_READ_REG(hw, IXGBE_VFLINKS); | 
|  | regs_buff[3] = IXGBE_READ_REG(hw, IXGBE_VFRXMEMWRAP); | 
|  | regs_buff[4] = IXGBE_READ_REG(hw, IXGBE_VFFRTIMER); | 
|  |  | 
|  | /* Interrupt */ | 
|  | /* don't read EICR because it can clear interrupt causes, instead | 
|  | * read EICS which is a shadow but doesn't clear EICR */ | 
|  | regs_buff[5] = IXGBE_READ_REG(hw, IXGBE_VTEICS); | 
|  | regs_buff[6] = IXGBE_READ_REG(hw, IXGBE_VTEICS); | 
|  | regs_buff[7] = IXGBE_READ_REG(hw, IXGBE_VTEIMS); | 
|  | regs_buff[8] = IXGBE_READ_REG(hw, IXGBE_VTEIMC); | 
|  | regs_buff[9] = IXGBE_READ_REG(hw, IXGBE_VTEIAC); | 
|  | regs_buff[10] = IXGBE_READ_REG(hw, IXGBE_VTEIAM); | 
|  | regs_buff[11] = IXGBE_READ_REG(hw, IXGBE_VTEITR(0)); | 
|  | regs_buff[12] = IXGBE_READ_REG(hw, IXGBE_VTIVAR(0)); | 
|  | regs_buff[13] = IXGBE_READ_REG(hw, IXGBE_VTIVAR_MISC); | 
|  |  | 
|  | /* Receive DMA */ | 
|  | for (i = 0; i < 2; i++) | 
|  | regs_buff[14 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAL(i)); | 
|  | for (i = 0; i < 2; i++) | 
|  | regs_buff[16 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAH(i)); | 
|  | for (i = 0; i < 2; i++) | 
|  | regs_buff[18 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDLEN(i)); | 
|  | for (i = 0; i < 2; i++) | 
|  | regs_buff[20 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDH(i)); | 
|  | for (i = 0; i < 2; i++) | 
|  | regs_buff[22 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDT(i)); | 
|  | for (i = 0; i < 2; i++) | 
|  | regs_buff[24 + i] = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i)); | 
|  | for (i = 0; i < 2; i++) | 
|  | regs_buff[26 + i] = IXGBE_READ_REG(hw, IXGBE_VFSRRCTL(i)); | 
|  |  | 
|  | /* Receive */ | 
|  | regs_buff[28] = IXGBE_READ_REG(hw, IXGBE_VFPSRTYPE); | 
|  |  | 
|  | /* Transmit */ | 
|  | for (i = 0; i < 2; i++) | 
|  | regs_buff[29 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAL(i)); | 
|  | for (i = 0; i < 2; i++) | 
|  | regs_buff[31 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAH(i)); | 
|  | for (i = 0; i < 2; i++) | 
|  | regs_buff[33 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDLEN(i)); | 
|  | for (i = 0; i < 2; i++) | 
|  | regs_buff[35 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDH(i)); | 
|  | for (i = 0; i < 2; i++) | 
|  | regs_buff[37 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDT(i)); | 
|  | for (i = 0; i < 2; i++) | 
|  | regs_buff[39 + i] = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i)); | 
|  | for (i = 0; i < 2; i++) | 
|  | regs_buff[41 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAL(i)); | 
|  | for (i = 0; i < 2; i++) | 
|  | regs_buff[43 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAH(i)); | 
|  |  | 
|  | for (i = 0; i < ARRAY_SIZE(ixgbevf_reg_names); i++) | 
|  | hw_dbg(hw, "%s\t%8.8x\n", ixgbevf_reg_names[i], regs_buff[i]); | 
|  | } | 
|  |  | 
|  | static void ixgbevf_get_drvinfo(struct net_device *netdev, | 
|  | struct ethtool_drvinfo *drvinfo) | 
|  | { | 
|  | struct ixgbevf_adapter *adapter = netdev_priv(netdev); | 
|  |  | 
|  | strlcpy(drvinfo->driver, ixgbevf_driver_name, sizeof(drvinfo->driver)); | 
|  | strlcpy(drvinfo->version, ixgbevf_driver_version, | 
|  | sizeof(drvinfo->version)); | 
|  | strlcpy(drvinfo->bus_info, pci_name(adapter->pdev), | 
|  | sizeof(drvinfo->bus_info)); | 
|  | } | 
|  |  | 
|  | static void ixgbevf_get_ringparam(struct net_device *netdev, | 
|  | struct ethtool_ringparam *ring) | 
|  | { | 
|  | struct ixgbevf_adapter *adapter = netdev_priv(netdev); | 
|  |  | 
|  | ring->rx_max_pending = IXGBEVF_MAX_RXD; | 
|  | ring->tx_max_pending = IXGBEVF_MAX_TXD; | 
|  | ring->rx_pending = adapter->rx_ring_count; | 
|  | ring->tx_pending = adapter->tx_ring_count; | 
|  | } | 
|  |  | 
|  | static int ixgbevf_set_ringparam(struct net_device *netdev, | 
|  | struct ethtool_ringparam *ring) | 
|  | { | 
|  | struct ixgbevf_adapter *adapter = netdev_priv(netdev); | 
|  | struct ixgbevf_ring *tx_ring = NULL, *rx_ring = NULL; | 
|  | u32 new_rx_count, new_tx_count; | 
|  | int i, err = 0; | 
|  |  | 
|  | if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) | 
|  | return -EINVAL; | 
|  |  | 
|  | new_tx_count = max_t(u32, ring->tx_pending, IXGBEVF_MIN_TXD); | 
|  | new_tx_count = min_t(u32, new_tx_count, IXGBEVF_MAX_TXD); | 
|  | new_tx_count = ALIGN(new_tx_count, IXGBE_REQ_TX_DESCRIPTOR_MULTIPLE); | 
|  |  | 
|  | new_rx_count = max_t(u32, ring->rx_pending, IXGBEVF_MIN_RXD); | 
|  | new_rx_count = min_t(u32, new_rx_count, IXGBEVF_MAX_RXD); | 
|  | new_rx_count = ALIGN(new_rx_count, IXGBE_REQ_RX_DESCRIPTOR_MULTIPLE); | 
|  |  | 
|  | /* if nothing to do return success */ | 
|  | if ((new_tx_count == adapter->tx_ring_count) && | 
|  | (new_rx_count == adapter->rx_ring_count)) | 
|  | return 0; | 
|  |  | 
|  | while (test_and_set_bit(__IXGBEVF_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 (new_tx_count != adapter->tx_ring_count) { | 
|  | tx_ring = vmalloc(adapter->num_tx_queues * sizeof(*tx_ring)); | 
|  | if (!tx_ring) { | 
|  | err = -ENOMEM; | 
|  | goto clear_reset; | 
|  | } | 
|  |  | 
|  | for (i = 0; i < adapter->num_tx_queues; i++) { | 
|  | /* clone ring and setup updated count */ | 
|  | tx_ring[i] = adapter->tx_ring[i]; | 
|  | tx_ring[i].count = new_tx_count; | 
|  | err = ixgbevf_setup_tx_resources(adapter, &tx_ring[i]); | 
|  | if (!err) | 
|  | continue; | 
|  | while (i) { | 
|  | i--; | 
|  | ixgbevf_free_tx_resources(adapter, &tx_ring[i]); | 
|  | } | 
|  |  | 
|  | vfree(tx_ring); | 
|  | tx_ring = NULL; | 
|  |  | 
|  | goto clear_reset; | 
|  | } | 
|  | } | 
|  |  | 
|  | if (new_rx_count != adapter->rx_ring_count) { | 
|  | rx_ring = vmalloc(adapter->num_rx_queues * sizeof(*rx_ring)); | 
|  | if (!rx_ring) { | 
|  | err = -ENOMEM; | 
|  | goto clear_reset; | 
|  | } | 
|  |  | 
|  | for (i = 0; i < adapter->num_rx_queues; i++) { | 
|  | /* clone ring and setup updated count */ | 
|  | rx_ring[i] = adapter->rx_ring[i]; | 
|  | rx_ring[i].count = new_rx_count; | 
|  | err = ixgbevf_setup_rx_resources(adapter, &rx_ring[i]); | 
|  | if (!err) | 
|  | continue; | 
|  | while (i) { | 
|  | i--; | 
|  | ixgbevf_free_rx_resources(adapter, &rx_ring[i]); | 
|  | } | 
|  |  | 
|  | vfree(rx_ring); | 
|  | rx_ring = NULL; | 
|  |  | 
|  | goto clear_reset; | 
|  | } | 
|  | } | 
|  |  | 
|  | /* bring interface down to prepare for update */ | 
|  | ixgbevf_down(adapter); | 
|  |  | 
|  | /* Tx */ | 
|  | if (tx_ring) { | 
|  | for (i = 0; i < adapter->num_tx_queues; i++) { | 
|  | ixgbevf_free_tx_resources(adapter, | 
|  | &adapter->tx_ring[i]); | 
|  | adapter->tx_ring[i] = tx_ring[i]; | 
|  | } | 
|  | adapter->tx_ring_count = new_tx_count; | 
|  |  | 
|  | vfree(tx_ring); | 
|  | tx_ring = NULL; | 
|  | } | 
|  |  | 
|  | /* Rx */ | 
|  | if (rx_ring) { | 
|  | for (i = 0; i < adapter->num_rx_queues; i++) { | 
|  | ixgbevf_free_rx_resources(adapter, | 
|  | &adapter->rx_ring[i]); | 
|  | adapter->rx_ring[i] = rx_ring[i]; | 
|  | } | 
|  | adapter->rx_ring_count = new_rx_count; | 
|  |  | 
|  | vfree(rx_ring); | 
|  | rx_ring = NULL; | 
|  | } | 
|  |  | 
|  | /* restore interface using new values */ | 
|  | ixgbevf_up(adapter); | 
|  |  | 
|  | clear_reset: | 
|  | /* free Tx resources if Rx error is encountered */ | 
|  | if (tx_ring) { | 
|  | for (i = 0; i < adapter->num_tx_queues; i++) | 
|  | ixgbevf_free_tx_resources(adapter, &tx_ring[i]); | 
|  | vfree(tx_ring); | 
|  | } | 
|  |  | 
|  | clear_bit(__IXGBEVF_RESETTING, &adapter->state); | 
|  | return err; | 
|  | } | 
|  |  | 
|  | static int ixgbevf_get_sset_count(struct net_device *dev, int stringset) | 
|  | { | 
|  | switch (stringset) { | 
|  | case ETH_SS_TEST: | 
|  | return IXGBE_TEST_LEN; | 
|  | case ETH_SS_STATS: | 
|  | return IXGBE_GLOBAL_STATS_LEN; | 
|  | default: | 
|  | return -EINVAL; | 
|  | } | 
|  | } | 
|  |  | 
|  | static void ixgbevf_get_ethtool_stats(struct net_device *netdev, | 
|  | struct ethtool_stats *stats, u64 *data) | 
|  | { | 
|  | struct ixgbevf_adapter *adapter = netdev_priv(netdev); | 
|  | int i; | 
|  |  | 
|  | ixgbevf_update_stats(adapter); | 
|  | for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) { | 
|  | char *p = (char *)adapter + | 
|  | ixgbe_gstrings_stats[i].stat_offset; | 
|  | char *b = (char *)adapter + | 
|  | ixgbe_gstrings_stats[i].base_stat_offset; | 
|  | char *r = (char *)adapter + | 
|  | ixgbe_gstrings_stats[i].saved_reset_offset; | 
|  | data[i] = ((ixgbe_gstrings_stats[i].sizeof_stat == | 
|  | sizeof(u64)) ? *(u64 *)p : *(u32 *)p) - | 
|  | ((ixgbe_gstrings_stats[i].sizeof_stat == | 
|  | sizeof(u64)) ? *(u64 *)b : *(u32 *)b) + | 
|  | ((ixgbe_gstrings_stats[i].sizeof_stat == | 
|  | sizeof(u64)) ? *(u64 *)r : *(u32 *)r); | 
|  | } | 
|  | } | 
|  |  | 
|  | static void ixgbevf_get_strings(struct net_device *netdev, u32 stringset, | 
|  | u8 *data) | 
|  | { | 
|  | char *p = (char *)data; | 
|  | int i; | 
|  |  | 
|  | switch (stringset) { | 
|  | case ETH_SS_TEST: | 
|  | memcpy(data, *ixgbe_gstrings_test, | 
|  | IXGBE_TEST_LEN * ETH_GSTRING_LEN); | 
|  | break; | 
|  | case ETH_SS_STATS: | 
|  | for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) { | 
|  | memcpy(p, ixgbe_gstrings_stats[i].stat_string, | 
|  | ETH_GSTRING_LEN); | 
|  | p += ETH_GSTRING_LEN; | 
|  | } | 
|  | break; | 
|  | } | 
|  | } | 
|  |  | 
|  | static int ixgbevf_link_test(struct ixgbevf_adapter *adapter, u64 *data) | 
|  | { | 
|  | struct ixgbe_hw *hw = &adapter->hw; | 
|  | bool link_up; | 
|  | u32 link_speed = 0; | 
|  | *data = 0; | 
|  |  | 
|  | hw->mac.ops.check_link(hw, &link_speed, &link_up, true); | 
|  | if (!link_up) | 
|  | *data = 1; | 
|  |  | 
|  | return *data; | 
|  | } | 
|  |  | 
|  | /* ethtool register test data */ | 
|  | struct ixgbevf_reg_test { | 
|  | u16 reg; | 
|  | u8  array_len; | 
|  | u8  test_type; | 
|  | u32 mask; | 
|  | u32 write; | 
|  | }; | 
|  |  | 
|  | /* In the hardware, registers are laid out either singly, in arrays | 
|  | * spaced 0x40 bytes apart, or in contiguous tables.  We assume | 
|  | * most tests take place on arrays or single registers (handled | 
|  | * as a single-element array) and special-case the tables. | 
|  | * Table tests are always pattern tests. | 
|  | * | 
|  | * We also make provision for some required setup steps by specifying | 
|  | * registers to be written without any read-back testing. | 
|  | */ | 
|  |  | 
|  | #define PATTERN_TEST	1 | 
|  | #define SET_READ_TEST	2 | 
|  | #define WRITE_NO_TEST	3 | 
|  | #define TABLE32_TEST	4 | 
|  | #define TABLE64_TEST_LO	5 | 
|  | #define TABLE64_TEST_HI	6 | 
|  |  | 
|  | /* default VF register test */ | 
|  | static const struct ixgbevf_reg_test reg_test_vf[] = { | 
|  | { IXGBE_VFRDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFF80 }, | 
|  | { IXGBE_VFRDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF }, | 
|  | { IXGBE_VFRDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFFFF }, | 
|  | { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, IXGBE_RXDCTL_ENABLE }, | 
|  | { IXGBE_VFRDT(0), 2, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF }, | 
|  | { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, 0 }, | 
|  | { IXGBE_VFTDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF }, | 
|  | { IXGBE_VFTDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF }, | 
|  | { IXGBE_VFTDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFF80 }, | 
|  | { 0, 0, 0, 0 } | 
|  | }; | 
|  |  | 
|  | static const u32 register_test_patterns[] = { | 
|  | 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF | 
|  | }; | 
|  |  | 
|  | #define REG_PATTERN_TEST(R, M, W)                                             \ | 
|  | {                                                                             \ | 
|  | u32 pat, val, before;                                                 \ | 
|  | for (pat = 0; pat < ARRAY_SIZE(register_test_patterns); pat++) {      \ | 
|  | before = readl(adapter->hw.hw_addr + R);                      \ | 
|  | writel((register_test_patterns[pat] & W),                     \ | 
|  | (adapter->hw.hw_addr + R));                            \ | 
|  | val = readl(adapter->hw.hw_addr + R);                         \ | 
|  | if (val != (register_test_patterns[pat] & W & M)) {           \ | 
|  | hw_dbg(&adapter->hw,                                  \ | 
|  | "pattern test reg %04X failed: got "                  \ | 
|  | "0x%08X expected 0x%08X\n",                           \ | 
|  | R, val, (register_test_patterns[pat] & W & M));       \ | 
|  | *data = R;                                            \ | 
|  | writel(before, adapter->hw.hw_addr + R);              \ | 
|  | return 1;                                             \ | 
|  | }                                                             \ | 
|  | writel(before, adapter->hw.hw_addr + R);                      \ | 
|  | }                                                                     \ | 
|  | } | 
|  |  | 
|  | #define REG_SET_AND_CHECK(R, M, W)                                            \ | 
|  | {                                                                             \ | 
|  | u32 val, before;                                                      \ | 
|  | before = readl(adapter->hw.hw_addr + R);                              \ | 
|  | writel((W & M), (adapter->hw.hw_addr + R));                           \ | 
|  | val = readl(adapter->hw.hw_addr + R);                                 \ | 
|  | if ((W & M) != (val & M)) {                                           \ | 
|  | pr_err("set/check reg %04X test failed: got 0x%08X expected " \ | 
|  | "0x%08X\n", R, (val & M), (W & M));                    \ | 
|  | *data = R;                                                    \ | 
|  | writel(before, (adapter->hw.hw_addr + R));                    \ | 
|  | return 1;                                                     \ | 
|  | }                                                                     \ | 
|  | writel(before, (adapter->hw.hw_addr + R));                            \ | 
|  | } | 
|  |  | 
|  | static int ixgbevf_reg_test(struct ixgbevf_adapter *adapter, u64 *data) | 
|  | { | 
|  | const struct ixgbevf_reg_test *test; | 
|  | u32 i; | 
|  |  | 
|  | test = reg_test_vf; | 
|  |  | 
|  | /* | 
|  | * Perform the register test, looping through the test table | 
|  | * until we either fail or reach the null entry. | 
|  | */ | 
|  | while (test->reg) { | 
|  | for (i = 0; i < test->array_len; i++) { | 
|  | switch (test->test_type) { | 
|  | case PATTERN_TEST: | 
|  | REG_PATTERN_TEST(test->reg + (i * 0x40), | 
|  | test->mask, | 
|  | test->write); | 
|  | break; | 
|  | case SET_READ_TEST: | 
|  | REG_SET_AND_CHECK(test->reg + (i * 0x40), | 
|  | test->mask, | 
|  | test->write); | 
|  | break; | 
|  | case WRITE_NO_TEST: | 
|  | writel(test->write, | 
|  | (adapter->hw.hw_addr + test->reg) | 
|  | + (i * 0x40)); | 
|  | break; | 
|  | case TABLE32_TEST: | 
|  | REG_PATTERN_TEST(test->reg + (i * 4), | 
|  | test->mask, | 
|  | test->write); | 
|  | break; | 
|  | case TABLE64_TEST_LO: | 
|  | REG_PATTERN_TEST(test->reg + (i * 8), | 
|  | test->mask, | 
|  | test->write); | 
|  | break; | 
|  | case TABLE64_TEST_HI: | 
|  | REG_PATTERN_TEST((test->reg + 4) + (i * 8), | 
|  | test->mask, | 
|  | test->write); | 
|  | break; | 
|  | } | 
|  | } | 
|  | test++; | 
|  | } | 
|  |  | 
|  | *data = 0; | 
|  | return *data; | 
|  | } | 
|  |  | 
|  | static void ixgbevf_diag_test(struct net_device *netdev, | 
|  | struct ethtool_test *eth_test, u64 *data) | 
|  | { | 
|  | struct ixgbevf_adapter *adapter = netdev_priv(netdev); | 
|  | bool if_running = netif_running(netdev); | 
|  |  | 
|  | set_bit(__IXGBEVF_TESTING, &adapter->state); | 
|  | if (eth_test->flags == ETH_TEST_FL_OFFLINE) { | 
|  | /* Offline tests */ | 
|  |  | 
|  | hw_dbg(&adapter->hw, "offline testing starting\n"); | 
|  |  | 
|  | /* Link test performed before hardware reset so autoneg doesn't | 
|  | * interfere with test result */ | 
|  | if (ixgbevf_link_test(adapter, &data[1])) | 
|  | eth_test->flags |= ETH_TEST_FL_FAILED; | 
|  |  | 
|  | if (if_running) | 
|  | /* indicate we're in test mode */ | 
|  | dev_close(netdev); | 
|  | else | 
|  | ixgbevf_reset(adapter); | 
|  |  | 
|  | hw_dbg(&adapter->hw, "register testing starting\n"); | 
|  | if (ixgbevf_reg_test(adapter, &data[0])) | 
|  | eth_test->flags |= ETH_TEST_FL_FAILED; | 
|  |  | 
|  | ixgbevf_reset(adapter); | 
|  |  | 
|  | clear_bit(__IXGBEVF_TESTING, &adapter->state); | 
|  | if (if_running) | 
|  | dev_open(netdev); | 
|  | } else { | 
|  | hw_dbg(&adapter->hw, "online testing starting\n"); | 
|  | /* Online tests */ | 
|  | if (ixgbevf_link_test(adapter, &data[1])) | 
|  | eth_test->flags |= ETH_TEST_FL_FAILED; | 
|  |  | 
|  | /* Online tests aren't run; pass by default */ | 
|  | data[0] = 0; | 
|  |  | 
|  | clear_bit(__IXGBEVF_TESTING, &adapter->state); | 
|  | } | 
|  | msleep_interruptible(4 * 1000); | 
|  | } | 
|  |  | 
|  | static int ixgbevf_nway_reset(struct net_device *netdev) | 
|  | { | 
|  | struct ixgbevf_adapter *adapter = netdev_priv(netdev); | 
|  |  | 
|  | if (netif_running(netdev)) | 
|  | ixgbevf_reinit_locked(adapter); | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | static const struct ethtool_ops ixgbevf_ethtool_ops = { | 
|  | .get_settings           = ixgbevf_get_settings, | 
|  | .get_drvinfo            = ixgbevf_get_drvinfo, | 
|  | .get_regs_len           = ixgbevf_get_regs_len, | 
|  | .get_regs               = ixgbevf_get_regs, | 
|  | .nway_reset             = ixgbevf_nway_reset, | 
|  | .get_link               = ethtool_op_get_link, | 
|  | .get_ringparam          = ixgbevf_get_ringparam, | 
|  | .set_ringparam          = ixgbevf_set_ringparam, | 
|  | .get_msglevel           = ixgbevf_get_msglevel, | 
|  | .set_msglevel           = ixgbevf_set_msglevel, | 
|  | .self_test              = ixgbevf_diag_test, | 
|  | .get_sset_count         = ixgbevf_get_sset_count, | 
|  | .get_strings            = ixgbevf_get_strings, | 
|  | .get_ethtool_stats      = ixgbevf_get_ethtool_stats, | 
|  | }; | 
|  |  | 
|  | void ixgbevf_set_ethtool_ops(struct net_device *netdev) | 
|  | { | 
|  | SET_ETHTOOL_OPS(netdev, &ixgbevf_ethtool_ops); | 
|  | } |