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Release 4.11 drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c

/*
 *  Copyright (C) 2013-2015 Chelsio Communications.  All rights reserved.
 *
 *  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.
 *
 *  The full GNU General Public License is included in this distribution in
 *  the file called "COPYING".
 *
 */

#include <linux/firmware.h>
#include <linux/mdio.h>

#include "cxgb4.h"
#include "t4_regs.h"
#include "t4fw_api.h"


#define EEPROM_MAGIC 0x38E2F10C


static u32 get_msglevel(struct net_device *dev) { return netdev2adap(dev)->msg_enable; }

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static void set_msglevel(struct net_device *dev, u32 val) { netdev2adap(dev)->msg_enable = val; }

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static const char stats_strings[][ETH_GSTRING_LEN] = { "tx_octets_ok ", "tx_frames_ok ", "tx_broadcast_frames ", "tx_multicast_frames ", "tx_unicast_frames ", "tx_error_frames ", "tx_frames_64 ", "tx_frames_65_to_127 ", "tx_frames_128_to_255 ", "tx_frames_256_to_511 ", "tx_frames_512_to_1023 ", "tx_frames_1024_to_1518 ", "tx_frames_1519_to_max ", "tx_frames_dropped ", "tx_pause_frames ", "tx_ppp0_frames ", "tx_ppp1_frames ", "tx_ppp2_frames ", "tx_ppp3_frames ", "tx_ppp4_frames ", "tx_ppp5_frames ", "tx_ppp6_frames ", "tx_ppp7_frames ", "rx_octets_ok ", "rx_frames_ok ", "rx_broadcast_frames ", "rx_multicast_frames ", "rx_unicast_frames ", "rx_frames_too_long ", "rx_jabber_errors ", "rx_fcs_errors ", "rx_length_errors ", "rx_symbol_errors ", "rx_runt_frames ", "rx_frames_64 ", "rx_frames_65_to_127 ", "rx_frames_128_to_255 ", "rx_frames_256_to_511 ", "rx_frames_512_to_1023 ", "rx_frames_1024_to_1518 ", "rx_frames_1519_to_max ", "rx_pause_frames ", "rx_ppp0_frames ", "rx_ppp1_frames ", "rx_ppp2_frames ", "rx_ppp3_frames ", "rx_ppp4_frames ", "rx_ppp5_frames ", "rx_ppp6_frames ", "rx_ppp7_frames ", "rx_bg0_frames_dropped ", "rx_bg1_frames_dropped ", "rx_bg2_frames_dropped ", "rx_bg3_frames_dropped ", "rx_bg0_frames_trunc ", "rx_bg1_frames_trunc ", "rx_bg2_frames_trunc ", "rx_bg3_frames_trunc ", "tso ", "tx_csum_offload ", "rx_csum_good ", "vlan_extractions ", "vlan_insertions ", "gro_packets ", "gro_merged ", }; static char adapter_stats_strings[][ETH_GSTRING_LEN] = { "db_drop ", "db_full ", "db_empty ", "tcp_ipv4_out_rsts ", "tcp_ipv4_in_segs ", "tcp_ipv4_out_segs ", "tcp_ipv4_retrans_segs ", "tcp_ipv6_out_rsts ", "tcp_ipv6_in_segs ", "tcp_ipv6_out_segs ", "tcp_ipv6_retrans_segs ", "usm_ddp_frames ", "usm_ddp_octets ", "usm_ddp_drops ", "rdma_no_rqe_mod_defer ", "rdma_no_rqe_pkt_defer ", "tp_err_ofld_no_neigh ", "tp_err_ofld_cong_defer ", "write_coal_success ", "write_coal_fail ", }; static char channel_stats_strings[][ETH_GSTRING_LEN] = { "--------Channel--------- ", "tp_cpl_requests ", "tp_cpl_responses ", "tp_mac_in_errs ", "tp_hdr_in_errs ", "tp_tcp_in_errs ", "tp_tcp6_in_errs ", "tp_tnl_cong_drops ", "tp_tnl_tx_drops ", "tp_ofld_vlan_drops ", "tp_ofld_chan_drops ", "fcoe_octets_ddp ", "fcoe_frames_ddp ", "fcoe_frames_drop ", }; static char loopback_stats_strings[][ETH_GSTRING_LEN] = { "-------Loopback----------- ", "octets_ok ", "frames_ok ", "bcast_frames ", "mcast_frames ", "ucast_frames ", "error_frames ", "frames_64 ", "frames_65_to_127 ", "frames_128_to_255 ", "frames_256_to_511 ", "frames_512_to_1023 ", "frames_1024_to_1518 ", "frames_1519_to_max ", "frames_dropped ", "bg0_frames_dropped ", "bg1_frames_dropped ", "bg2_frames_dropped ", "bg3_frames_dropped ", "bg0_frames_trunc ", "bg1_frames_trunc ", "bg2_frames_trunc ", "bg3_frames_trunc ", };
static int get_sset_count(struct net_device *dev, int sset) { switch (sset) { case ETH_SS_STATS: return ARRAY_SIZE(stats_strings) + ARRAY_SIZE(adapter_stats_strings) + ARRAY_SIZE(channel_stats_strings) + ARRAY_SIZE(loopback_stats_strings); default: return -EOPNOTSUPP; } }

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static int get_regs_len(struct net_device *dev) { struct adapter *adap = netdev2adap(dev); return t4_get_regs_len(adap); }

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static int get_eeprom_len(struct net_device *dev) { return EEPROMSIZE; }

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static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) { struct adapter *adapter = netdev2adap(dev); u32 exprom_vers; strlcpy(info->driver, cxgb4_driver_name, sizeof(info->driver)); strlcpy(info->version, cxgb4_driver_version, sizeof(info->version)); strlcpy(info->bus_info, pci_name(adapter->pdev), sizeof(info->bus_info)); info->regdump_len = get_regs_len(dev); if (!adapter->params.fw_vers) strcpy(info->fw_version, "N/A"); else snprintf(info->fw_version, sizeof(info->fw_version), "%u.%u.%u.%u, TP %u.%u.%u.%u", FW_HDR_FW_VER_MAJOR_G(adapter->params.fw_vers), FW_HDR_FW_VER_MINOR_G(adapter->params.fw_vers), FW_HDR_FW_VER_MICRO_G(adapter->params.fw_vers), FW_HDR_FW_VER_BUILD_G(adapter->params.fw_vers), FW_HDR_FW_VER_MAJOR_G(adapter->params.tp_vers), FW_HDR_FW_VER_MINOR_G(adapter->params.tp_vers), FW_HDR_FW_VER_MICRO_G(adapter->params.tp_vers), FW_HDR_FW_VER_BUILD_G(adapter->params.tp_vers)); if (!t4_get_exprom_version(adapter, &exprom_vers)) snprintf(info->erom_version, sizeof(info->erom_version), "%u.%u.%u.%u", FW_HDR_FW_VER_MAJOR_G(exprom_vers), FW_HDR_FW_VER_MINOR_G(exprom_vers), FW_HDR_FW_VER_MICRO_G(exprom_vers), FW_HDR_FW_VER_BUILD_G(exprom_vers)); }

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static void get_strings(struct net_device *dev, u32 stringset, u8 *data) { if (stringset == ETH_SS_STATS) { memcpy(data, stats_strings, sizeof(stats_strings)); data += sizeof(stats_strings); memcpy(data, adapter_stats_strings, sizeof(adapter_stats_strings)); data += sizeof(adapter_stats_strings); memcpy(data, channel_stats_strings, sizeof(channel_stats_strings)); data += sizeof(channel_stats_strings); memcpy(data, loopback_stats_strings, sizeof(loopback_stats_strings)); } }

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/* port stats maintained per queue of the port. They should be in the same * order as in stats_strings above. */ struct queue_port_stats { u64 tso; u64 tx_csum; u64 rx_csum; u64 vlan_ex; u64 vlan_ins; u64 gro_pkts; u64 gro_merged; }; struct adapter_stats { u64 db_drop; u64 db_full; u64 db_empty; u64 tcp_v4_out_rsts; u64 tcp_v4_in_segs; u64 tcp_v4_out_segs; u64 tcp_v4_retrans_segs; u64 tcp_v6_out_rsts; u64 tcp_v6_in_segs; u64 tcp_v6_out_segs; u64 tcp_v6_retrans_segs; u64 frames; u64 octets; u64 drops; u64 rqe_dfr_mod; u64 rqe_dfr_pkt; u64 ofld_no_neigh; u64 ofld_cong_defer; u64 wc_success; u64 wc_fail; }; struct channel_stats { u64 cpl_req; u64 cpl_rsp; u64 mac_in_errs; u64 hdr_in_errs; u64 tcp_in_errs; u64 tcp6_in_errs; u64 tnl_cong_drops; u64 tnl_tx_drops; u64 ofld_vlan_drops; u64 ofld_chan_drops; u64 octets_ddp; u64 frames_ddp; u64 frames_drop; };
static void collect_sge_port_stats(const struct adapter *adap, const struct port_info *p, struct queue_port_stats *s) { int i; const struct sge_eth_txq *tx = &adap->sge.ethtxq[p->first_qset]; const struct sge_eth_rxq *rx = &adap->sge.ethrxq[p->first_qset]; memset(s, 0, sizeof(*s)); for (i = 0; i < p->nqsets; i++, rx++, tx++) { s->tso += tx->tso; s->tx_csum += tx->tx_cso; s->rx_csum += rx->stats.rx_cso; s->vlan_ex += rx->stats.vlan_ex; s->vlan_ins += tx->vlan_ins; s->gro_pkts += rx->stats.lro_pkts; s->gro_merged += rx->stats.lro_merged; } }

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static void collect_adapter_stats(struct adapter *adap, struct adapter_stats *s) { struct tp_tcp_stats v4, v6; struct tp_rdma_stats rdma_stats; struct tp_err_stats err_stats; struct tp_usm_stats usm_stats; u64 val1, val2; memset(s, 0, sizeof(*s)); spin_lock(&adap->stats_lock); t4_tp_get_tcp_stats(adap, &v4, &v6); t4_tp_get_rdma_stats(adap, &rdma_stats); t4_get_usm_stats(adap, &usm_stats); t4_tp_get_err_stats(adap, &err_stats); spin_unlock(&adap->stats_lock); s->db_drop = adap->db_stats.db_drop; s->db_full = adap->db_stats.db_full; s->db_empty = adap->db_stats.db_empty; s->tcp_v4_out_rsts = v4.tcp_out_rsts; s->tcp_v4_in_segs = v4.tcp_in_segs; s->tcp_v4_out_segs = v4.tcp_out_segs; s->tcp_v4_retrans_segs = v4.tcp_retrans_segs; s->tcp_v6_out_rsts = v6.tcp_out_rsts; s->tcp_v6_in_segs = v6.tcp_in_segs; s->tcp_v6_out_segs = v6.tcp_out_segs; s->tcp_v6_retrans_segs = v6.tcp_retrans_segs; if (is_offload(adap)) { s->frames = usm_stats.frames; s->octets = usm_stats.octets; s->drops = usm_stats.drops; s->rqe_dfr_mod = rdma_stats.rqe_dfr_mod; s->rqe_dfr_pkt = rdma_stats.rqe_dfr_pkt; } s->ofld_no_neigh = err_stats.ofld_no_neigh; s->ofld_cong_defer = err_stats.ofld_cong_defer; if (!is_t4(adap->params.chip)) { int v; v = t4_read_reg(adap, SGE_STAT_CFG_A); if (STATSOURCE_T5_G(v) == 7) { val2 = t4_read_reg(adap, SGE_STAT_MATCH_A); val1 = t4_read_reg(adap, SGE_STAT_TOTAL_A); s->wc_success = val1 - val2; s->wc_fail = val2; } } }

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static void collect_channel_stats(struct adapter *adap, struct channel_stats *s, u8 i) { struct tp_cpl_stats cpl_stats; struct tp_err_stats err_stats; struct tp_fcoe_stats fcoe_stats; memset(s, 0, sizeof(*s)); spin_lock(&adap->stats_lock); t4_tp_get_cpl_stats(adap, &cpl_stats); t4_tp_get_err_stats(adap, &err_stats); t4_get_fcoe_stats(adap, i, &fcoe_stats); spin_unlock(&adap->stats_lock); s->cpl_req = cpl_stats.req[i]; s->cpl_rsp = cpl_stats.rsp[i]; s->mac_in_errs = err_stats.mac_in_errs[i]; s->hdr_in_errs = err_stats.hdr_in_errs[i]; s->tcp_in_errs = err_stats.tcp_in_errs[i]; s->tcp6_in_errs = err_stats.tcp6_in_errs[i]; s->tnl_cong_drops = err_stats.tnl_cong_drops[i]; s->tnl_tx_drops = err_stats.tnl_tx_drops[i]; s->ofld_vlan_drops = err_stats.ofld_vlan_drops[i]; s->ofld_chan_drops = err_stats.ofld_chan_drops[i]; s->octets_ddp = fcoe_stats.octets_ddp; s->frames_ddp = fcoe_stats.frames_ddp; s->frames_drop = fcoe_stats.frames_drop; }

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static void get_stats(struct net_device *dev, struct ethtool_stats *stats, u64 *data) { struct port_info *pi = netdev_priv(dev); struct adapter *adapter = pi->adapter; struct lb_port_stats s; int i; u64 *p0; t4_get_port_stats_offset(adapter, pi->tx_chan, (struct port_stats *)data, &pi->stats_base); data += sizeof(struct port_stats) / sizeof(u64); collect_sge_port_stats(adapter, pi, (struct queue_port_stats *)data); data += sizeof(struct queue_port_stats) / sizeof(u64); collect_adapter_stats(adapter, (struct adapter_stats *)data); data += sizeof(struct adapter_stats) / sizeof(u64); *data++ = (u64)pi->port_id; collect_channel_stats(adapter, (struct channel_stats *)data, pi->port_id); data += sizeof(struct channel_stats) / sizeof(u64); *data++ = (u64)pi->port_id; memset(&s, 0, sizeof(s)); t4_get_lb_stats(adapter, pi->port_id, &s); p0 = &s.octets; for (i = 0; i < ARRAY_SIZE(loopback_stats_strings) - 1; i++) *data++ = (unsigned long long)*p0++; }

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static void get_regs(struct net_device *dev, struct ethtool_regs *regs, void *buf) { struct adapter *adap = netdev2adap(dev); size_t buf_size; buf_size = t4_get_regs_len(adap); regs->version = mk_adap_vers(adap); t4_get_regs(adap, buf, buf_size); }

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static int restart_autoneg(struct net_device *dev) { struct port_info *p = netdev_priv(dev); if (!netif_running(dev)) return -EAGAIN; if (p->link_cfg.autoneg != AUTONEG_ENABLE) return -EINVAL; t4_restart_aneg(p->adapter, p->adapter->pf, p->tx_chan); return 0; }

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static int identify_port(struct net_device *dev, enum ethtool_phys_id_state state) { unsigned int val; struct adapter *adap = netdev2adap(dev); if (state == ETHTOOL_ID_ACTIVE) val = 0xffff; else if (state == ETHTOOL_ID_INACTIVE) val = 0; else return -EINVAL; return t4_identify_port(adap, adap->pf, netdev2pinfo(dev)->viid, val); }

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/** * from_fw_port_mod_type - translate Firmware Port/Module type to Ethtool * @port_type: Firmware Port Type * @mod_type: Firmware Module Type * * Translate Firmware Port/Module type to Ethtool Port Type. */
static int from_fw_port_mod_type(enum fw_port_type port_type, enum fw_port_module_type mod_type) { if (port_type == FW_PORT_TYPE_BT_SGMII || port_type == FW_PORT_TYPE_BT_XFI || port_type == FW_PORT_TYPE_BT_XAUI) { return PORT_TP; } else if (port_type == FW_PORT_TYPE_FIBER_XFI || port_type == FW_PORT_TYPE_FIBER_XAUI) { return PORT_FIBRE; } else if (port_type == FW_PORT_TYPE_SFP || port_type == FW_PORT_TYPE_QSFP_10G || port_type == FW_PORT_TYPE_QSA || port_type == FW_PORT_TYPE_QSFP) { if (mod_type == FW_PORT_MOD_TYPE_LR || mod_type == FW_PORT_MOD_TYPE_SR || mod_type == FW_PORT_MOD_TYPE_ER || mod_type == FW_PORT_MOD_TYPE_LRM) return PORT_FIBRE; else if (mod_type == FW_PORT_MOD_TYPE_TWINAX_PASSIVE || mod_type == FW_PORT_MOD_TYPE_TWINAX_ACTIVE) return PORT_DA; else return PORT_OTHER; } return PORT_OTHER; }

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/** * speed_to_fw_caps - translate Port Speed to Firmware Port Capabilities * @speed: speed in Kb/s * * Translates a specific Port Speed into a Firmware Port Capabilities * value. */
static unsigned int speed_to_fw_caps(int speed) { if (speed == 100) return FW_PORT_CAP_SPEED_100M; if (speed == 1000) return FW_PORT_CAP_SPEED_1G; if (speed == 10000) return FW_PORT_CAP_SPEED_10G; if (speed == 25000) return FW_PORT_CAP_SPEED_25G; if (speed == 40000) return FW_PORT_CAP_SPEED_40G; if (speed == 100000) return FW_PORT_CAP_SPEED_100G; return 0; }

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/** * fw_caps_to_lmm - translate Firmware to ethtool Link Mode Mask * @port_type: Firmware Port Type * @fw_caps: Firmware Port Capabilities * @link_mode_mask: ethtool Link Mode Mask * * Translate a Firmware Port Capabilities specification to an ethtool * Link Mode Mask. */
static void fw_caps_to_lmm(enum fw_port_type port_type, unsigned int fw_caps, unsigned long *link_mode_mask) { #define SET_LMM(__lmm_name) __set_bit(ETHTOOL_LINK_MODE_ ## __lmm_name \ ## _BIT, link_mode_mask) #define FW_CAPS_TO_LMM(__fw_name, __lmm_name) \ do { \ if (fw_caps & FW_PORT_CAP_ ## __fw_name) \ SET_LMM(__lmm_name); \ } while (0) switch (port_type) { case FW_PORT_TYPE_BT_SGMII: case FW_PORT_TYPE_BT_XFI: case FW_PORT_TYPE_BT_XAUI: SET_LMM(TP); FW_CAPS_TO_LMM(SPEED_100M, 100baseT_Full); FW_CAPS_TO_LMM(SPEED_1G, 1000baseT_Full); FW_CAPS_TO_LMM(SPEED_10G, 10000baseT_Full); break; case FW_PORT_TYPE_KX4: case FW_PORT_TYPE_KX: SET_LMM(Backplane); FW_CAPS_TO_LMM(SPEED_1G, 1000baseKX_Full); FW_CAPS_TO_LMM(SPEED_10G, 10000baseKX4_Full); break; case FW_PORT_TYPE_KR: SET_LMM(Backplane); SET_LMM(10000baseKR_Full); break; case FW_PORT_TYPE_BP_AP: SET_LMM(Backplane); SET_LMM(10000baseR_FEC); SET_LMM(10000baseKR_Full); SET_LMM(1000baseKX_Full); break; case FW_PORT_TYPE_BP4_AP: SET_LMM(Backplane); SET_LMM(10000baseR_FEC); SET_LMM(10000baseKR_Full); SET_LMM(1000baseKX_Full); SET_LMM(10000baseKX4_Full); break; case FW_PORT_TYPE_FIBER_XFI: case FW_PORT_TYPE_FIBER_XAUI: case FW_PORT_TYPE_SFP: case FW_PORT_TYPE_QSFP_10G: case FW_PORT_TYPE_QSA: SET_LMM(FIBRE); FW_CAPS_TO_LMM(SPEED_1G, 1000baseT_Full); FW_CAPS_TO_LMM(SPEED_10G, 10000baseT_Full); break; case FW_PORT_TYPE_BP40_BA: case FW_PORT_TYPE_QSFP: SET_LMM(FIBRE); SET_LMM(40000baseSR4_Full); break; case FW_PORT_TYPE_CR_QSFP: case FW_PORT_TYPE_SFP28: SET_LMM(FIBRE); SET_LMM(25000baseCR_Full); break; case FW_PORT_TYPE_KR4_100G: case FW_PORT_TYPE_CR4_QSFP: SET_LMM(FIBRE); SET_LMM(100000baseCR4_Full); break; default: break; } FW_CAPS_TO_LMM(ANEG, Autoneg); FW_CAPS_TO_LMM(802_3_PAUSE, Pause); FW_CAPS_TO_LMM(802_3_ASM_DIR, Asym_Pause); #undef FW_CAPS_TO_LMM #undef SET_LMM }

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/** * lmm_to_fw_caps - translate ethtool Link Mode Mask to Firmware * capabilities * * @link_mode_mask: ethtool Link Mode Mask * * Translate ethtool Link Mode Mask into a Firmware Port capabilities * value. */
static unsigned int lmm_to_fw_caps(const unsigned long *link_mode_mask) { unsigned int fw_caps = 0; #define LMM_TO_FW_CAPS(__lmm_name, __fw_name) \ do { \ if (test_bit(ETHTOOL_LINK_MODE_ ## __lmm_name ## _BIT, \ link_mode_mask)) \ fw_caps |= FW_PORT_CAP_ ## __fw_name; \ } while (0) LMM_TO_FW_CAPS(100baseT_Full, SPEED_100M); LMM_TO_FW_CAPS(1000baseT_Full, SPEED_1G); LMM_TO_FW_CAPS(10000baseT_Full, SPEED_10G); LMM_TO_FW_CAPS(40000baseSR4_Full, SPEED_40G); LMM_TO_FW_CAPS(25000baseCR_Full, SPEED_25G); LMM_TO_FW_CAPS(100000baseCR4_Full, SPEED_100G); #undef LMM_TO_FW_CAPS return fw_caps; }

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static int get_link_ksettings(struct net_device *dev, struct ethtool_link_ksettings *link_ksettings) { const struct port_info *pi = netdev_priv(dev); struct ethtool_link_settings *base = &link_ksettings->base; ethtool_link_ksettings_zero_link_mode(link_ksettings, supported); ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising); ethtool_link_ksettings_zero_link_mode(link_ksettings, lp_advertising); base->port = from_fw_port_mod_type(pi->port_type, pi->mod_type); if (pi->mdio_addr >= 0) { base->phy_address = pi->mdio_addr; base->mdio_support = (pi->port_type == FW_PORT_TYPE_BT_SGMII ? ETH_MDIO_SUPPORTS_C22 : ETH_MDIO_SUPPORTS_C45); } else { base->phy_address = 255; base->mdio_support = 0; } fw_caps_to_lmm(pi->port_type, pi->link_cfg.supported, link_ksettings->link_modes.supported); fw_caps_to_lmm(pi->port_type, pi->link_cfg.advertising, link_ksettings->link_modes.advertising); fw_caps_to_lmm(pi->port_type, pi->link_cfg.lp_advertising, link_ksettings->link_modes.lp_advertising); if (netif_carrier_ok(dev)) { base->speed = pi->link_cfg.speed; base->duplex = DUPLEX_FULL; } else { base->speed = SPEED_UNKNOWN; base->duplex = DUPLEX_UNKNOWN; } base->autoneg = pi->link_cfg.autoneg; if (pi->link_cfg.supported & FW_PORT_CAP_ANEG) ethtool_link_ksettings_add_link_mode(link_ksettings, supported, Autoneg); if (pi->link_cfg.autoneg) ethtool_link_ksettings_add_link_mode(link_ksettings, advertising, Autoneg); return 0; }

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static int set_link_ksettings(struct net_device *dev, const struct ethtool_link_ksettings *link_ksettings) { struct port_info *pi = netdev_priv(dev); struct link_config *lc = &pi->link_cfg; const struct ethtool_link_settings *base = &link_ksettings->base; struct link_config old_lc; unsigned int fw_caps; int ret = 0; /* only full-duplex supported */ if (base->duplex != DUPLEX_FULL) return -EINVAL; if (!(lc->supported & FW_PORT_CAP_ANEG)) { /* PHY offers a single speed. See if that's what's * being requested. */ if (base->autoneg == AUTONEG_DISABLE && (lc->supported & speed_to_fw_caps(base->speed))) return 0; return -EINVAL; } old_lc = *lc; if (base->autoneg == AUTONEG_DISABLE) { fw_caps = speed_to_fw_caps(base->speed); if (!(lc->supported & fw_caps)) return -EINVAL; lc->requested_speed = fw_caps; lc->advertising = 0; } else { fw_caps = lmm_to_fw_caps(link_ksettings->link_modes.advertising); if (!(lc->supported & fw_caps)) return -EINVAL; lc->requested_speed = 0; lc->advertising = fw_caps | FW_PORT_CAP_ANEG; } lc->autoneg = base->autoneg; /* If the firmware rejects the Link Configuration request, back out * the changes and report the error. */ ret = t4_link_l1cfg(pi->adapter, pi->adapter->mbox, pi->tx_chan, lc); if (ret) *lc = old_lc; return ret; }

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Hariprasad Shenai20782.14%375.00%
Ganesh Goudar4517.86%125.00%
Total252100.00%4100.00%


static void get_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause) { struct port_info *p = netdev_priv(dev); epause->autoneg = (p->link_cfg.requested_fc & PAUSE_AUTONEG) != 0; epause->rx_pause = (p->link_cfg.fc & PAUSE_RX) != 0; epause->tx_pause = (p->link_cfg.fc & PAUSE_TX) != 0; }

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Hariprasad Shenai74100.00%1100.00%
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static int set_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause) { struct port_info *p = netdev_priv(dev); struct link_config *lc = &p->link_cfg; if (epause->autoneg == AUTONEG_DISABLE) lc->requested_fc = 0; else if (lc->supported & FW_PORT_CAP_ANEG) lc->requested_fc = PAUSE_AUTONEG; else return -EINVAL; if (epause->rx_pause) lc->requested_fc |= PAUSE_RX; if (epause->tx_pause) lc->requested_fc |= PAUSE_TX; if (netif_running(dev)) return t4_link_l1cfg(p->adapter, p->adapter->mbox, p->tx_chan, lc); return 0; }

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Hariprasad Shenai124100.00%3100.00%
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static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e) { const struct port_info *pi = netdev_priv(dev); const struct sge *s = &pi->adapter->sge; e->rx_max_pending = MAX_RX_BUFFERS; e->rx_mini_max_pending = MAX_RSPQ_ENTRIES; e->rx_jumbo_max_pending = 0; e->tx_max_pending = MAX_TXQ_ENTRIES; e->rx_pending = s->ethrxq[pi->first_qset].fl.size - 8; e->rx_mini_pending = s->ethrxq[pi->first_qset].rspq.size; e->rx_jumbo_pending = 0; e->tx_pending = s->ethtxq[pi->first_qset].q.size; }

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Hariprasad Shenai123100.00%1100.00%
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static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e) { int i; const struct port_info *pi = netdev_priv(dev); struct adapter *adapter = pi->adapter; struct sge *s = &adapter->sge; if (e->rx_pending > MAX_RX_BUFFERS || e->rx_jumbo_pending || e->tx_pending > MAX_TXQ_ENTRIES || e->rx_mini_pending > MAX_RSPQ_ENTRIES || e->rx_mini_pending < MIN_RSPQ_ENTRIES || e->rx_pending < MIN_FL_ENTRIES || e->tx_pending < MIN_TXQ_ENTRIES) return -EINVAL; if (adapter->flags & FULL_INIT_DONE) return -EBUSY; for (i = 0; i < pi->nqsets; ++i) { s->ethtxq[pi->first_qset + i].q.size = e->tx_pending; s->ethrxq[pi->first_qset + i].fl.size = e->rx_pending + 8; s->ethrxq[pi->first_qset + i].rspq.size = e->rx_mini_pending; } return 0; }

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Hariprasad Shenai186100.00%1100.00%
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/** * set_rx_intr_params - set a net devices's RX interrupt holdoff paramete! * @dev: the network device * @us: the hold-off time in us, or 0 to disable timer * @cnt: the hold-off packet count, or 0 to disable counter * * Set the RX interrupt hold-off parameters for a network device. */
static int set_rx_intr_params(struct net_device *dev, unsigned int us, unsigned int cnt) { int i, err; struct port_info *pi = netdev_priv(dev); struct adapter *adap = pi->adapter; struct sge_eth_rxq *q = &adap->sge.ethrxq[pi->first_qset]; for (i = 0; i < pi->nqsets; i++, q++) { err = cxgb4_set_rspq_intr_params(&q->rspq, us, cnt); if (err) return err; } return 0; }

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Hariprasad Shenai104100.00%1100.00%
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static int set_adaptive_rx_setting(struct net_device *dev, int adaptive_rx) { int i; struct port_info *pi = netdev_priv(dev); struct adapter *adap = pi->adapter; struct sge_eth_rxq *q = &adap->sge.ethrxq[pi->first_qset]; for (i = 0; i < pi->nqsets; i++, q++) q->rspq.adaptive_rx = adaptive_rx; return 0; }

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Hariprasad Shenai82100.00%1100.00%
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static int get_adaptive_rx_setting(struct net_device *dev) { struct port_info *pi = netdev_priv(dev); struct adapter *adap = pi->adapter; struct sge_eth_rxq *q = &adap->sge.ethrxq[pi->first_qset]; return q->rspq.adaptive_rx; }

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Hariprasad Shenai54100.00%1100.00%
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static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c) { set_adaptive_rx_setting(dev, c->use_adaptive_rx_coalesce); return set_rx_intr_params(dev, c->rx_coalesce_usecs, c->rx_max_coalesced_frames); }

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Hariprasad Shenai39100.00%1100.00%
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static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c) { const struct port_info *pi = netdev_priv(dev); const struct adapter *adap = pi->adapter; const struct sge_rspq *rq = &adap->sge.ethrxq[pi->first_qset].rspq; c->rx_coalesce_usecs = qtimer_val(adap, rq); c->rx_max_coalesced_frames = (rq->intr_params & QINTR_CNT_EN_F) ? adap->sge.counter_val[rq->pktcnt_idx] : 0; c->use_adaptive_rx_coalesce = get_adaptive_rx_setting(dev); return 0; }

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Hariprasad Shenai105100.00%2100.00%
Total105100.00%2100.00%

/** * eeprom_ptov - translate a physical EEPROM address to virtual * @phys_addr: the physical EEPROM address * @fn: the PCI function number * @sz: size of function-specific area * * Translate a physical EEPROM address to virtual. The first 1K is * accessed through virtual addresses starting at 31K, the rest is * accessed through virtual addresses starting at 0. * * The mapping is as follows: * [0..1K) -> [31K..32K) * [1K..1K+A) -> [31K-A..31K) * [1K+A..ES) -> [0..ES-A-1K) * * where A = @fn * @sz, and ES = EEPROM size. */
static int eeprom_ptov(unsigned int phys_addr, unsigned int fn, unsigned int sz) { fn *= sz; if (phys_addr < 1024) return phys_addr + (31 << 10); if (phys_addr < 1024 + fn) return 31744 - fn + phys_addr - 1024; if (phys_addr < EEPROMSIZE) return phys_addr - 1024 - fn; return -EINVAL; }

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Hariprasad Shenai71100.00%1100.00%
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/* The next two routines implement eeprom read/write from physical addresses. */
static int eeprom_rd_phys(struct adapter *adap, unsigned int phys_addr, u32 *v) { int vaddr = eeprom_ptov(phys_addr, adap->pf, EEPROMPFSIZE); if (vaddr >= 0) vaddr = pci_read_vpd(adap->pdev, vaddr, sizeof(u32), v); return vaddr < 0 ? vaddr : 0; }

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Hariprasad Shenai66100.00%2100.00%
Total66100.00%2100.00%


static int eeprom_wr_phys(struct adapter *adap, unsigned int phys_addr, u32 v) { int vaddr = eeprom_ptov(phys_addr, adap->pf, EEPROMPFSIZE); if (vaddr >= 0) vaddr = pci_write_vpd(adap->pdev, vaddr, sizeof(u32), &v); return vaddr < 0 ? vaddr : 0; }

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Hariprasad Shenai66100.00%2100.00%
Total66100.00%2100.00%

#define EEPROM_MAGIC 0x38E2F10C
static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *e, u8 *data) { int i, err = 0; struct adapter *adapter = netdev2adap(dev); u8 *buf = t4_alloc_mem(EEPROMSIZE); if (!buf) return -ENOMEM; e->magic = EEPROM_MAGIC; for (i = e->offset & ~3; !err && i < e->offset + e->len; i += 4) err = eeprom_rd_phys(adapter, i, (u32 *)&buf[i]); if (!err) memcpy(data, buf + e->offset, e->len); t4_free_mem(buf); return err; }

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Hariprasad Shenai136100.00%2100.00%
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static int set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, u8 *data) { u8 *buf; int err = 0; u32 aligned_offset, aligned_len, *p; struct adapter *adapter = netdev2adap(dev); if (eeprom->magic != EEPROM_MAGIC) return -EINVAL; aligned_offset = eeprom->offset & ~3; aligned_len = (eeprom->len + (eeprom->offset & 3) + 3) & ~3; if (adapter->pf > 0) { u32 start = 1024 + adapter->pf * EEPROMPFSIZE; if (aligned_offset < start || aligned_offset + aligned_len > start + EEPROMPFSIZE) return -EPERM; } if (aligned_offset != eeprom->offset || aligned_len != eeprom->len) { /* RMW possibly needed for first or last words. */ buf = t4_alloc_mem(aligned_len); if (!buf) return -ENOMEM; err = eeprom_rd_phys(adapter, aligned_offset, (u32 *)buf); if (!err && aligned_len > 4) err = eeprom_rd_phys(adapter, aligned_offset + aligned_len - 4, (u32 *)&buf[aligned_len - 4]); if (err) goto out; memcpy(buf + (eeprom->offset & 3), data, eeprom->len); } else { buf = data; } err = t4_seeprom_wp(adapter, false); if (err) goto out; for (p = (u32 *)buf; !err && aligned_len; aligned_len -= 4, p++) { err = eeprom_wr_phys(adapter, aligned_offset, *p); aligned_offset += 4; } if (!err) err = t4_seeprom_wp(adapter, true); out: if (buf != data) t4_free_mem(buf); return err; }

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Hariprasad Shenai329100.00%3100.00%
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static int set_flash(struct net_device *netdev, struct ethtool_flash *ef) { int ret; const struct firmware *fw; struct adapter *adap = netdev2adap(netdev); unsigned int mbox = PCIE_FW_MASTER_M + 1; u32 pcie_fw; unsigned int master; u8 master_vld = 0; pcie_fw = t4_read_reg(adap, PCIE_FW_A); master = PCIE_FW_MASTER_G(pcie_fw); if (pcie_fw & PCIE_FW_MASTER_VLD_F) master_vld = 1; /* if csiostor is the master return */ if (master_vld && (master != adap->pf)) { dev_warn(adap->pdev_dev, "cxgb4 driver needs to be loaded as MASTER to support FW flash\n"); return -EOPNOTSUPP; } ef->data[sizeof(ef->data) - 1] = '\0'; ret = request_firmware(&fw, ef->data, adap->pdev_dev); if (ret < 0) return ret; /* If the adapter has been fully initialized then we'll go ahead and * try to get the firmware's cooperation in upgrading to the new * firmware image otherwise we'll try to do the entire job from the * host ... and we always "force" the operation in this path. */ if (adap->flags & FULL_INIT_DONE) mbox = adap->mbox; ret = t4_fw_upgrade(adap, mbox, fw->data, fw->size, 1); release_firmware(fw); if (!ret) dev_info(adap->pdev_dev, "loaded firmware %s, reload cxgb4 driver\n", ef->data); return ret; }

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Hariprasad Shenai210100.00%2100.00%
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static int get_ts_info(struct net_device *dev, struct ethtool_ts_info *ts_info) { ts_info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | SOF_TIMESTAMPING_RX_SOFTWARE | SOF_TIMESTAMPING_SOFTWARE; ts_info->so_timestamping |= SOF_TIMESTAMPING_RX_HARDWARE | SOF_TIMESTAMPING_RAW_HARDWARE; ts_info->phc_index = -1; return 0; }

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Hariprasad Shenai44100.00%1100.00%
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static u32 get_rss_table_size(struct net_device *dev) { const struct port_info *pi = netdev_priv(dev); return pi->rss_size; }

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Hariprasad Shenai27100.00%1100.00%
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static int get_rss_table(struct net_device *dev, u32 *p, u8 *key, u8 *hfunc) { const struct port_info *pi = netdev_priv(dev); unsigned int n = pi->rss_size; if (hfunc) *hfunc = ETH_RSS_HASH_TOP; if (!p) return 0; while (n--) p[n] = pi->rss[n]; return 0; }

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Hariprasad Shenai79100.00%1100.00%
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static int set_rss_table(struct net_device *dev, const u32 *p, const u8 *key, const u8 hfunc) { unsigned int i; struct port_info *pi = netdev_priv(dev); /* We require at least one supported parameter to be changed and no * change in any of the unsupported parameters */ if (key || (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)) return -EOPNOTSUPP; if (!p) return 0; /* Interface must be brought up atleast once */ if (pi->adapter->flags & FULL_INIT_DONE) { for (i = 0; i < pi->rss_size; i++) pi->rss[i] = p[i]; return cxgb4_write_rss(pi, pi->rss); } return -EPERM; }

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Hariprasad Shenai120100.00%2100.00%
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static int get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info, u32 *rules) { const struct port_info *pi = netdev_priv(dev); switch (info->cmd) { case ETHTOOL_GRXFH: { unsigned int v = pi->rss_mode; info->data = 0; switch (info->flow_type) { case TCP_V4_FLOW: if (v & FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN_F) info->data = RXH_IP_SRC | RXH_IP_DST | RXH_L4_B_0_1 | RXH_L4_B_2_3; else if (v & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN_F) info->data = RXH_IP_SRC | RXH_IP_DST; break; case UDP_V4_FLOW: if ((v & FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN_F) && (v & FW_RSS_VI_CONFIG_CMD_UDPEN_F)) info->data = RXH_IP_SRC | RXH_IP_DST | RXH_L4_B_0_1 | RXH_L4_B_2_3; else if (v & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN_F) info->data = RXH_IP_SRC | RXH_IP_DST; break; case SCTP_V4_FLOW: case AH_ESP_V4_FLOW: case IPV4_FLOW: if (v & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN_F) info->data = RXH_IP_SRC | RXH_IP_DST; break; case TCP_V6_FLOW: if (v & FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN_F) info->data = RXH_IP_SRC | RXH_IP_DST | RXH_L4_B_0_1 | RXH_L4_B_2_3; else if (v & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN_F) info->data = RXH_IP_SRC | RXH_IP_DST; break; case UDP_V6_FLOW: if ((v & FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN_F) && (v & FW_RSS_VI_CONFIG_CMD_UDPEN_F)) info->data = RXH_IP_SRC | RXH_IP_DST | RXH_L4_B_0_1 | RXH_L4_B_2_3; else if (v & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN_F) info->data = RXH_IP_SRC | RXH_IP_DST; break; case SCTP_V6_FLOW: case AH_ESP_V6_FLOW: case IPV6_FLOW: if (v & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN_F) info->data = RXH_IP_SRC | RXH_IP_DST; break; } return 0; } case ETHTOOL_GRXRINGS: info->data = pi->nqsets; return 0; } return -EOPNOTSUPP; }

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Hariprasad Shenai299100.00%1100.00%
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static const struct ethtool_ops cxgb_ethtool_ops = { .get_link_ksettings = get_link_ksettings, .set_link_ksettings = set_link_ksettings, .get_drvinfo = get_drvinfo, .get_msglevel = get_msglevel, .set_msglevel = set_msglevel, .get_ringparam = get_sge_param, .set_ringparam = set_sge_param, .get_coalesce = get_coalesce, .set_coalesce = set_coalesce, .get_eeprom_len = get_eeprom_len, .get_eeprom = get_eeprom, .set_eeprom = set_eeprom, .get_pauseparam = get_pauseparam, .set_pauseparam = set_pauseparam, .get_link = ethtool_op_get_link, .get_strings = get_strings, .set_phys_id = identify_port, .nway_reset = restart_autoneg, .get_sset_count = get_sset_count, .get_ethtool_stats = get_stats, .get_regs_len = get_regs_len, .get_regs = get_regs, .get_rxnfc = get_rxnfc, .get_rxfh_indir_size = get_rss_table_size, .get_rxfh = get_rss_table, .set_rxfh = set_rss_table, .flash_device = set_flash, .get_ts_info = get_ts_info };
void cxgb4_set_ethtool_ops(struct net_device *netdev) { netdev->ethtool_ops = &cxgb_ethtool_ops; }

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Hariprasad Shenai499288.34%1593.75%
Ganesh Goudar65911.66%16.25%
Total5651100.00%16100.00%
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