diff options
Diffstat (limited to 'drivers/net/ethernet/intel/igbvf/ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/intel/igbvf/ethtool.c | 534 |
1 files changed, 534 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/igbvf/ethtool.c b/drivers/net/ethernet/intel/igbvf/ethtool.c new file mode 100644 index 000000000000..b0b14d63dfbf --- /dev/null +++ b/drivers/net/ethernet/intel/igbvf/ethtool.c @@ -0,0 +1,534 @@ +/******************************************************************************* + + Intel(R) 82576 Virtual Function Linux driver + Copyright(c) 2009 - 2010 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) +{ + return; +} + +static int igbvf_set_pauseparam(struct net_device *netdev, + struct ethtool_pauseparam *pause) +{ + return -EOPNOTSUPP; +} + +static u32 igbvf_get_rx_csum(struct net_device *netdev) +{ + struct igbvf_adapter *adapter = netdev_priv(netdev); + return !(adapter->flags & IGBVF_FLAG_RX_CSUM_DISABLED); +} + +static int igbvf_set_rx_csum(struct net_device *netdev, u32 data) +{ + struct igbvf_adapter *adapter = netdev_priv(netdev); + + if (data) + adapter->flags &= ~IGBVF_FLAG_RX_CSUM_DISABLED; + else + adapter->flags |= IGBVF_FLAG_RX_CSUM_DISABLED; + + return 0; +} + +static u32 igbvf_get_tx_csum(struct net_device *netdev) +{ + return (netdev->features & NETIF_F_IP_CSUM) != 0; +} + +static int igbvf_set_tx_csum(struct net_device *netdev, u32 data) +{ + if (data) + netdev->features |= (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM); + else + netdev->features &= ~(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM); + return 0; +} + +static int igbvf_set_tso(struct net_device *netdev, u32 data) +{ + struct igbvf_adapter *adapter = netdev_priv(netdev); + + if (data) { + netdev->features |= NETIF_F_TSO; + netdev->features |= NETIF_F_TSO6; + } else { + netdev->features &= ~NETIF_F_TSO; + netdev->features &= ~NETIF_F_TSO6; + } + + dev_info(&adapter->pdev->dev, "TSO is %s\n", + data ? "Enabled" : "Disabled"); + return 0; +} + +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); + char firmware_version[32] = "N/A"; + + strncpy(drvinfo->driver, igbvf_driver_name, 32); + strncpy(drvinfo->version, igbvf_driver_version, 32); + strncpy(drvinfo->fw_version, firmware_version, 32); + strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32); + 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_mini_max_pending = 0; + ring->rx_jumbo_max_pending = 0; + ring->rx_pending = rx_ring->count; + ring->tx_pending = tx_ring->count; + ring->rx_mini_pending = 0; + ring->rx_jumbo_pending = 0; +} + +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->itr_setting <= 3) + ec->rx_coalesce_usecs = adapter->itr_setting; + else + ec->rx_coalesce_usecs = adapter->itr_setting >> 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_MAX_ITR_USECS) || + ((ec->rx_coalesce_usecs > 3) && + (ec->rx_coalesce_usecs < IGBVF_MIN_ITR_USECS)) || + (ec->rx_coalesce_usecs == 2)) + return -EINVAL; + + /* convert to rate of irq's per second */ + if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3) { + adapter->itr = IGBVF_START_ITR; + adapter->itr_setting = ec->rx_coalesce_usecs; + } else { + adapter->itr = ec->rx_coalesce_usecs << 2; + adapter->itr_setting = adapter->itr; + } + + writel(adapter->itr, + hw->hw_addr + adapter->rx_ring[0].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, + .get_rx_csum = igbvf_get_rx_csum, + .set_rx_csum = igbvf_set_rx_csum, + .get_tx_csum = igbvf_get_tx_csum, + .set_tx_csum = igbvf_set_tx_csum, + .get_sg = ethtool_op_get_sg, + .set_sg = ethtool_op_set_sg, + .get_tso = ethtool_op_get_tso, + .set_tso = igbvf_set_tso, + .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) +{ + /* have to "undeclare" const on this struct to remove warnings */ + SET_ETHTOOL_OPS(netdev, (struct ethtool_ops *)&igbvf_ethtool_ops); +} |