|  | /* | 
|  | * Copyright (C) 2005 - 2009 ServerEngines | 
|  | * All rights reserved. | 
|  | * | 
|  | * This program is free software; you can redistribute it and/or | 
|  | * modify it under the terms of the GNU General Public License version 2 | 
|  | * as published by the Free Software Foundation.  The full GNU General | 
|  | * Public License is included in this distribution in the file called COPYING. | 
|  | * | 
|  | * Contact Information: | 
|  | * linux-drivers@serverengines.com | 
|  | * | 
|  | * ServerEngines | 
|  | * 209 N. Fair Oaks Ave | 
|  | * Sunnyvale, CA 94085 | 
|  | */ | 
|  |  | 
|  | #include "be.h" | 
|  | #include <linux/ethtool.h> | 
|  |  | 
|  | struct be_ethtool_stat { | 
|  | char desc[ETH_GSTRING_LEN]; | 
|  | int type; | 
|  | int size; | 
|  | int offset; | 
|  | }; | 
|  |  | 
|  | enum {NETSTAT, PORTSTAT, MISCSTAT, DRVSTAT, ERXSTAT}; | 
|  | #define FIELDINFO(_struct, field) FIELD_SIZEOF(_struct, field), \ | 
|  | offsetof(_struct, field) | 
|  | #define NETSTAT_INFO(field) 	#field, NETSTAT,\ | 
|  | FIELDINFO(struct net_device_stats,\ | 
|  | field) | 
|  | #define DRVSTAT_INFO(field) 	#field, DRVSTAT,\ | 
|  | FIELDINFO(struct be_drvr_stats, field) | 
|  | #define MISCSTAT_INFO(field) 	#field, MISCSTAT,\ | 
|  | FIELDINFO(struct be_rxf_stats, field) | 
|  | #define PORTSTAT_INFO(field) 	#field, PORTSTAT,\ | 
|  | FIELDINFO(struct be_port_rxf_stats, \ | 
|  | field) | 
|  | #define ERXSTAT_INFO(field) 	#field, ERXSTAT,\ | 
|  | FIELDINFO(struct be_erx_stats, field) | 
|  |  | 
|  | static const struct be_ethtool_stat et_stats[] = { | 
|  | {NETSTAT_INFO(rx_packets)}, | 
|  | {NETSTAT_INFO(tx_packets)}, | 
|  | {NETSTAT_INFO(rx_bytes)}, | 
|  | {NETSTAT_INFO(tx_bytes)}, | 
|  | {NETSTAT_INFO(rx_errors)}, | 
|  | {NETSTAT_INFO(tx_errors)}, | 
|  | {NETSTAT_INFO(rx_dropped)}, | 
|  | {NETSTAT_INFO(tx_dropped)}, | 
|  | {DRVSTAT_INFO(be_tx_reqs)}, | 
|  | {DRVSTAT_INFO(be_tx_stops)}, | 
|  | {DRVSTAT_INFO(be_fwd_reqs)}, | 
|  | {DRVSTAT_INFO(be_tx_wrbs)}, | 
|  | {DRVSTAT_INFO(be_polls)}, | 
|  | {DRVSTAT_INFO(be_tx_events)}, | 
|  | {DRVSTAT_INFO(be_rx_events)}, | 
|  | {DRVSTAT_INFO(be_tx_compl)}, | 
|  | {DRVSTAT_INFO(be_rx_compl)}, | 
|  | {DRVSTAT_INFO(be_ethrx_post_fail)}, | 
|  | {DRVSTAT_INFO(be_802_3_dropped_frames)}, | 
|  | {DRVSTAT_INFO(be_802_3_malformed_frames)}, | 
|  | {DRVSTAT_INFO(be_tx_rate)}, | 
|  | {DRVSTAT_INFO(be_rx_rate)}, | 
|  | {PORTSTAT_INFO(rx_unicast_frames)}, | 
|  | {PORTSTAT_INFO(rx_multicast_frames)}, | 
|  | {PORTSTAT_INFO(rx_broadcast_frames)}, | 
|  | {PORTSTAT_INFO(rx_crc_errors)}, | 
|  | {PORTSTAT_INFO(rx_alignment_symbol_errors)}, | 
|  | {PORTSTAT_INFO(rx_pause_frames)}, | 
|  | {PORTSTAT_INFO(rx_control_frames)}, | 
|  | {PORTSTAT_INFO(rx_in_range_errors)}, | 
|  | {PORTSTAT_INFO(rx_out_range_errors)}, | 
|  | {PORTSTAT_INFO(rx_frame_too_long)}, | 
|  | {PORTSTAT_INFO(rx_address_match_errors)}, | 
|  | {PORTSTAT_INFO(rx_vlan_mismatch)}, | 
|  | {PORTSTAT_INFO(rx_dropped_too_small)}, | 
|  | {PORTSTAT_INFO(rx_dropped_too_short)}, | 
|  | {PORTSTAT_INFO(rx_dropped_header_too_small)}, | 
|  | {PORTSTAT_INFO(rx_dropped_tcp_length)}, | 
|  | {PORTSTAT_INFO(rx_dropped_runt)}, | 
|  | {PORTSTAT_INFO(rx_fifo_overflow)}, | 
|  | {PORTSTAT_INFO(rx_input_fifo_overflow)}, | 
|  | {PORTSTAT_INFO(rx_ip_checksum_errs)}, | 
|  | {PORTSTAT_INFO(rx_tcp_checksum_errs)}, | 
|  | {PORTSTAT_INFO(rx_udp_checksum_errs)}, | 
|  | {PORTSTAT_INFO(rx_non_rss_packets)}, | 
|  | {PORTSTAT_INFO(rx_ipv4_packets)}, | 
|  | {PORTSTAT_INFO(rx_ipv6_packets)}, | 
|  | {PORTSTAT_INFO(tx_unicastframes)}, | 
|  | {PORTSTAT_INFO(tx_multicastframes)}, | 
|  | {PORTSTAT_INFO(tx_broadcastframes)}, | 
|  | {PORTSTAT_INFO(tx_pauseframes)}, | 
|  | {PORTSTAT_INFO(tx_controlframes)}, | 
|  | {MISCSTAT_INFO(rx_drops_no_pbuf)}, | 
|  | {MISCSTAT_INFO(rx_drops_no_txpb)}, | 
|  | {MISCSTAT_INFO(rx_drops_no_erx_descr)}, | 
|  | {MISCSTAT_INFO(rx_drops_no_tpre_descr)}, | 
|  | {MISCSTAT_INFO(rx_drops_too_many_frags)}, | 
|  | {MISCSTAT_INFO(rx_drops_invalid_ring)}, | 
|  | {MISCSTAT_INFO(forwarded_packets)}, | 
|  | {MISCSTAT_INFO(rx_drops_mtu)}, | 
|  | {ERXSTAT_INFO(rx_drops_no_fragments)}, | 
|  | }; | 
|  | #define ETHTOOL_STATS_NUM ARRAY_SIZE(et_stats) | 
|  |  | 
|  | static void | 
|  | be_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo) | 
|  | { | 
|  | struct be_adapter *adapter = netdev_priv(netdev); | 
|  |  | 
|  | strcpy(drvinfo->driver, DRV_NAME); | 
|  | strcpy(drvinfo->version, DRV_VER); | 
|  | strncpy(drvinfo->fw_version, adapter->fw_ver, FW_VER_LEN); | 
|  | strcpy(drvinfo->bus_info, pci_name(adapter->pdev)); | 
|  | drvinfo->testinfo_len = 0; | 
|  | drvinfo->regdump_len = 0; | 
|  | drvinfo->eedump_len = 0; | 
|  | } | 
|  |  | 
|  | static int | 
|  | be_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *coalesce) | 
|  | { | 
|  | struct be_adapter *adapter = netdev_priv(netdev); | 
|  | struct be_eq_obj *rx_eq = &adapter->rx_eq; | 
|  | struct be_eq_obj *tx_eq = &adapter->tx_eq; | 
|  |  | 
|  | coalesce->rx_max_coalesced_frames = adapter->max_rx_coal; | 
|  |  | 
|  | coalesce->rx_coalesce_usecs = rx_eq->cur_eqd; | 
|  | coalesce->rx_coalesce_usecs_high = rx_eq->max_eqd; | 
|  | coalesce->rx_coalesce_usecs_low = rx_eq->min_eqd; | 
|  |  | 
|  | coalesce->tx_coalesce_usecs = tx_eq->cur_eqd; | 
|  | coalesce->tx_coalesce_usecs_high = tx_eq->max_eqd; | 
|  | coalesce->tx_coalesce_usecs_low = tx_eq->min_eqd; | 
|  |  | 
|  | coalesce->use_adaptive_rx_coalesce = rx_eq->enable_aic; | 
|  | coalesce->use_adaptive_tx_coalesce = tx_eq->enable_aic; | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | /* | 
|  | * This routine is used to set interrup coalescing delay *as well as* | 
|  | * the number of pkts to coalesce for LRO. | 
|  | */ | 
|  | static int | 
|  | be_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *coalesce) | 
|  | { | 
|  | struct be_adapter *adapter = netdev_priv(netdev); | 
|  | struct be_ctrl_info *ctrl = &adapter->ctrl; | 
|  | struct be_eq_obj *rx_eq = &adapter->rx_eq; | 
|  | struct be_eq_obj *tx_eq = &adapter->tx_eq; | 
|  | u32 tx_max, tx_min, tx_cur; | 
|  | u32 rx_max, rx_min, rx_cur; | 
|  | int status = 0; | 
|  |  | 
|  | if (coalesce->use_adaptive_tx_coalesce == 1) | 
|  | return -EINVAL; | 
|  |  | 
|  | adapter->max_rx_coal = coalesce->rx_max_coalesced_frames; | 
|  | if (adapter->max_rx_coal > MAX_SKB_FRAGS) | 
|  | adapter->max_rx_coal = MAX_SKB_FRAGS - 1; | 
|  |  | 
|  | /* if AIC is being turned on now, start with an EQD of 0 */ | 
|  | if (rx_eq->enable_aic == 0 && | 
|  | coalesce->use_adaptive_rx_coalesce == 1) { | 
|  | rx_eq->cur_eqd = 0; | 
|  | } | 
|  | rx_eq->enable_aic = coalesce->use_adaptive_rx_coalesce; | 
|  |  | 
|  | rx_max = coalesce->rx_coalesce_usecs_high; | 
|  | rx_min = coalesce->rx_coalesce_usecs_low; | 
|  | rx_cur = coalesce->rx_coalesce_usecs; | 
|  |  | 
|  | tx_max = coalesce->tx_coalesce_usecs_high; | 
|  | tx_min = coalesce->tx_coalesce_usecs_low; | 
|  | tx_cur = coalesce->tx_coalesce_usecs; | 
|  |  | 
|  | if (tx_cur > BE_MAX_EQD) | 
|  | tx_cur = BE_MAX_EQD; | 
|  | if (tx_eq->cur_eqd != tx_cur) { | 
|  | status = be_cmd_modify_eqd(ctrl, tx_eq->q.id, tx_cur); | 
|  | if (!status) | 
|  | tx_eq->cur_eqd = tx_cur; | 
|  | } | 
|  |  | 
|  | if (rx_eq->enable_aic) { | 
|  | if (rx_max > BE_MAX_EQD) | 
|  | rx_max = BE_MAX_EQD; | 
|  | if (rx_min > rx_max) | 
|  | rx_min = rx_max; | 
|  | rx_eq->max_eqd = rx_max; | 
|  | rx_eq->min_eqd = rx_min; | 
|  | if (rx_eq->cur_eqd > rx_max) | 
|  | rx_eq->cur_eqd = rx_max; | 
|  | if (rx_eq->cur_eqd < rx_min) | 
|  | rx_eq->cur_eqd = rx_min; | 
|  | } else { | 
|  | if (rx_cur > BE_MAX_EQD) | 
|  | rx_cur = BE_MAX_EQD; | 
|  | if (rx_eq->cur_eqd != rx_cur) { | 
|  | status = be_cmd_modify_eqd(ctrl, rx_eq->q.id, rx_cur); | 
|  | if (!status) | 
|  | rx_eq->cur_eqd = rx_cur; | 
|  | } | 
|  | } | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | static u32 be_get_rx_csum(struct net_device *netdev) | 
|  | { | 
|  | struct be_adapter *adapter = netdev_priv(netdev); | 
|  |  | 
|  | return adapter->rx_csum; | 
|  | } | 
|  |  | 
|  | static int be_set_rx_csum(struct net_device *netdev, uint32_t data) | 
|  | { | 
|  | struct be_adapter *adapter = netdev_priv(netdev); | 
|  |  | 
|  | if (data) | 
|  | adapter->rx_csum = true; | 
|  | else | 
|  | adapter->rx_csum = false; | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | static void | 
|  | be_get_ethtool_stats(struct net_device *netdev, | 
|  | struct ethtool_stats *stats, uint64_t *data) | 
|  | { | 
|  | struct be_adapter *adapter = netdev_priv(netdev); | 
|  | struct be_drvr_stats *drvr_stats = &adapter->stats.drvr_stats; | 
|  | struct be_hw_stats *hw_stats = hw_stats_from_cmd(adapter->stats.cmd.va); | 
|  | struct be_rxf_stats *rxf_stats = &hw_stats->rxf; | 
|  | struct be_port_rxf_stats *port_stats = | 
|  | &rxf_stats->port[adapter->port_num]; | 
|  | struct net_device_stats *net_stats = &adapter->stats.net_stats; | 
|  | struct be_erx_stats *erx_stats = &hw_stats->erx; | 
|  | void *p = NULL; | 
|  | int i; | 
|  |  | 
|  | for (i = 0; i < ETHTOOL_STATS_NUM; i++) { | 
|  | switch (et_stats[i].type) { | 
|  | case NETSTAT: | 
|  | p = net_stats; | 
|  | break; | 
|  | case DRVSTAT: | 
|  | p = drvr_stats; | 
|  | break; | 
|  | case PORTSTAT: | 
|  | p = port_stats; | 
|  | break; | 
|  | case MISCSTAT: | 
|  | p = rxf_stats; | 
|  | break; | 
|  | case ERXSTAT: /* Currently only one ERX stat is provided */ | 
|  | p = (u32 *)erx_stats + adapter->rx_obj.q.id; | 
|  | break; | 
|  | } | 
|  |  | 
|  | p = (u8 *)p + et_stats[i].offset; | 
|  | data[i] = (et_stats[i].size == sizeof(u64)) ? | 
|  | *(u64 *)p: *(u32 *)p; | 
|  | } | 
|  |  | 
|  | return; | 
|  | } | 
|  |  | 
|  | static void | 
|  | be_get_stat_strings(struct net_device *netdev, uint32_t stringset, | 
|  | uint8_t *data) | 
|  | { | 
|  | int i; | 
|  | switch (stringset) { | 
|  | case ETH_SS_STATS: | 
|  | for (i = 0; i < ETHTOOL_STATS_NUM; i++) { | 
|  | memcpy(data, et_stats[i].desc, ETH_GSTRING_LEN); | 
|  | data += ETH_GSTRING_LEN; | 
|  | } | 
|  | break; | 
|  | } | 
|  | } | 
|  |  | 
|  | static int be_get_stats_count(struct net_device *netdev) | 
|  | { | 
|  | return ETHTOOL_STATS_NUM; | 
|  | } | 
|  |  | 
|  | static int be_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd) | 
|  | { | 
|  | ecmd->speed = SPEED_10000; | 
|  | ecmd->duplex = DUPLEX_FULL; | 
|  | ecmd->autoneg = AUTONEG_DISABLE; | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | static void | 
|  | be_get_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring) | 
|  | { | 
|  | struct be_adapter *adapter = netdev_priv(netdev); | 
|  |  | 
|  | ring->rx_max_pending = adapter->rx_obj.q.len; | 
|  | ring->tx_max_pending = adapter->tx_obj.q.len; | 
|  |  | 
|  | ring->rx_pending = atomic_read(&adapter->rx_obj.q.used); | 
|  | ring->tx_pending = atomic_read(&adapter->tx_obj.q.used); | 
|  | } | 
|  |  | 
|  | static void | 
|  | be_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *ecmd) | 
|  | { | 
|  | struct be_adapter *adapter = netdev_priv(netdev); | 
|  |  | 
|  | be_cmd_get_flow_control(&adapter->ctrl, &ecmd->tx_pause, | 
|  | &ecmd->rx_pause); | 
|  | ecmd->autoneg = 0; | 
|  | } | 
|  |  | 
|  | static int | 
|  | be_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *ecmd) | 
|  | { | 
|  | struct be_adapter *adapter = netdev_priv(netdev); | 
|  | int status; | 
|  |  | 
|  | if (ecmd->autoneg != 0) | 
|  | return -EINVAL; | 
|  |  | 
|  | status = be_cmd_set_flow_control(&adapter->ctrl, ecmd->tx_pause, | 
|  | ecmd->rx_pause); | 
|  | if (!status) | 
|  | dev_warn(&adapter->pdev->dev, "Pause param set failed.\n"); | 
|  |  | 
|  | return status; | 
|  | } | 
|  |  | 
|  | struct ethtool_ops be_ethtool_ops = { | 
|  | .get_settings = be_get_settings, | 
|  | .get_drvinfo = be_get_drvinfo, | 
|  | .get_link = ethtool_op_get_link, | 
|  | .get_coalesce = be_get_coalesce, | 
|  | .set_coalesce = be_set_coalesce, | 
|  | .get_ringparam = be_get_ringparam, | 
|  | .get_pauseparam = be_get_pauseparam, | 
|  | .set_pauseparam = be_set_pauseparam, | 
|  | .get_rx_csum = be_get_rx_csum, | 
|  | .set_rx_csum = be_set_rx_csum, | 
|  | .get_tx_csum = ethtool_op_get_tx_csum, | 
|  | .set_tx_csum = ethtool_op_set_tx_csum, | 
|  | .get_sg = ethtool_op_get_sg, | 
|  | .set_sg = ethtool_op_set_sg, | 
|  | .get_tso = ethtool_op_get_tso, | 
|  | .set_tso = ethtool_op_set_tso, | 
|  | .get_strings = be_get_stat_strings, | 
|  | .get_stats_count = be_get_stats_count, | 
|  | .get_ethtool_stats = be_get_ethtool_stats, | 
|  | }; |