/* Due to a hw errata, if the host tries to configure the VFTA register *whileperformingqueriesfromtheBMCorDMA,thentheVFTAinsome *caseswon'tbewritten.
*/
if (igb_sgmii_active_82575(hw) && !igb_sgmii_uses_mdio_82575(hw)) {
phy->ops.read_reg = igb_read_phy_reg_sgmii_82575;
phy->ops.write_reg = igb_write_phy_reg_sgmii_82575;
} else { switch (hw->mac.type) { case e1000_82580: case e1000_i350: case e1000_i354: case e1000_i210: case e1000_i211:
phy->ops.read_reg = igb_read_phy_reg_82580;
phy->ops.write_reg = igb_write_phy_reg_82580; break; default:
phy->ops.read_reg = igb_read_phy_reg_igp;
phy->ops.write_reg = igb_write_phy_reg_igp;
}
}
/* set lan id */
hw->bus.func = FIELD_GET(E1000_STATUS_FUNC_MASK, rd32(E1000_STATUS));
/* Set phy->phy_addr and phy->id. */
ret_val = igb_get_phy_id_82575(hw); if (ret_val) return ret_val;
/* Verify phy id and set remaining function pointers */ switch (phy->id) { case M88E1543_E_PHY_ID: case M88E1512_E_PHY_ID: case I347AT4_E_PHY_ID: case M88E1112_E_PHY_ID: case M88E1111_I_PHY_ID:
phy->type = e1000_phy_m88;
phy->ops.check_polarity = igb_check_polarity_m88;
phy->ops.get_phy_info = igb_get_phy_info_m88; if (phy->id != M88E1111_I_PHY_ID)
phy->ops.get_cable_length =
igb_get_cable_length_m88_gen2; else
phy->ops.get_cable_length = igb_get_cable_length_m88;
phy->ops.force_speed_duplex = igb_phy_force_speed_duplex_m88; /* Check if this PHY is configured for media swap. */ if (phy->id == M88E1112_E_PHY_ID) {
u16 data;
ret_val = phy->ops.write_reg(hw,
E1000_M88E1112_PAGE_ADDR, 2); if (ret_val) goto out;
ret_val = phy->ops.read_reg(hw,
E1000_M88E1112_MAC_CTRL_1,
&data); if (ret_val) goto out;
/* Set if part includes ASF firmware */
mac->asf_firmware_present = true; /* Set if manageability features are enabled. */
mac->arc_subsystem_valid =
(rd32(E1000_FWSM) & E1000_FWSM_MODE_MASK)
? true : false; /* enable EEE on i350 parts and later parts */ if (mac->type >= e1000_i350)
dev_spec->eee_disable = false; else
dev_spec->eee_disable = true; /* Allow a single clear of the SW semaphore on I210 and newer */ if (mac->type >= e1000_i210)
dev_spec->clear_semaphore_once = true; /* physical interface link setup */
mac->ops.setup_physical_interface =
(hw->phy.media_type == e1000_media_type_copper)
? igb_setup_copper_link_82575
: igb_setup_serdes_link_82575;
if (mac->type == e1000_82580 || mac->type == e1000_i350) { switch (hw->device_id) { /* feature not supported on these id's */ case E1000_DEV_ID_DH89XXCC_SGMII: case E1000_DEV_ID_DH89XXCC_SERDES: case E1000_DEV_ID_DH89XXCC_BACKPLANE: case E1000_DEV_ID_DH89XXCC_SFP: break; default:
hw->dev_spec._82575.mas_capable = true; break;
}
} return0;
}
switch (hw->device_id) { case E1000_DEV_ID_82575EB_COPPER: case E1000_DEV_ID_82575EB_FIBER_SERDES: case E1000_DEV_ID_82575GB_QUAD_COPPER:
mac->type = e1000_82575; break; case E1000_DEV_ID_82576: case E1000_DEV_ID_82576_NS: case E1000_DEV_ID_82576_NS_SERDES: case E1000_DEV_ID_82576_FIBER: case E1000_DEV_ID_82576_SERDES: case E1000_DEV_ID_82576_QUAD_COPPER: case E1000_DEV_ID_82576_QUAD_COPPER_ET2: case E1000_DEV_ID_82576_SERDES_QUAD:
mac->type = e1000_82576; break; case E1000_DEV_ID_82580_COPPER: case E1000_DEV_ID_82580_FIBER: case E1000_DEV_ID_82580_QUAD_FIBER: case E1000_DEV_ID_82580_SERDES: case E1000_DEV_ID_82580_SGMII: case E1000_DEV_ID_82580_COPPER_DUAL: case E1000_DEV_ID_DH89XXCC_SGMII: case E1000_DEV_ID_DH89XXCC_SERDES: case E1000_DEV_ID_DH89XXCC_BACKPLANE: case E1000_DEV_ID_DH89XXCC_SFP:
mac->type = e1000_82580; break; case E1000_DEV_ID_I350_COPPER: case E1000_DEV_ID_I350_FIBER: case E1000_DEV_ID_I350_SERDES: case E1000_DEV_ID_I350_SGMII:
mac->type = e1000_i350; break; case E1000_DEV_ID_I210_COPPER: case E1000_DEV_ID_I210_FIBER: case E1000_DEV_ID_I210_SERDES: case E1000_DEV_ID_I210_SGMII: case E1000_DEV_ID_I210_COPPER_FLASHLESS: case E1000_DEV_ID_I210_SERDES_FLASHLESS:
mac->type = e1000_i210; break; case E1000_DEV_ID_I211_COPPER:
mac->type = e1000_i211; break; case E1000_DEV_ID_I354_BACKPLANE_1GBPS: case E1000_DEV_ID_I354_SGMII: case E1000_DEV_ID_I354_BACKPLANE_2_5GBPS:
mac->type = e1000_i354; break; default: return -E1000_ERR_MAC_INIT;
}
/* Set media type */ /* The 82575 uses bits 22:23 for link mode. The mode can be changed *basedontheEEPROM.WecannotrelyupondeviceID.There *isnodistinguishabledifferencebetweenfiberandinternal *SerDesmodeonthe82575.TherecanbeanexternalPHYattached *ontheSGMIIinterface.Forthis,we'llsetsgmii_activetotrue.
*/
hw->phy.media_type = e1000_media_type_copper;
dev_spec->sgmii_active = false;
dev_spec->module_plugged = false;
ctrl_ext = rd32(E1000_CTRL_EXT);
link_mode = ctrl_ext & E1000_CTRL_EXT_LINK_MODE_MASK; switch (link_mode) { case E1000_CTRL_EXT_LINK_MODE_1000BASE_KX:
hw->phy.media_type = e1000_media_type_internal_serdes; break; case E1000_CTRL_EXT_LINK_MODE_SGMII: /* Get phy control interface type set (MDIO vs. I2C)*/ if (igb_sgmii_uses_mdio_82575(hw)) {
hw->phy.media_type = e1000_media_type_copper;
dev_spec->sgmii_active = true; break;
}
fallthrough; /* for I2C based SGMII */ case E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES: /* read media type from SFP EEPROM */
ret_val = igb_set_sfp_media_type_82575(hw); if ((ret_val != 0) ||
(hw->phy.media_type == e1000_media_type_unknown)) { /* If media type was not identified then return media *typedefinedbytheCTRL_EXTsettings.
*/
hw->phy.media_type = e1000_media_type_internal_serdes;
/* if part supports SR-IOV then initialize mailbox parameters */ switch (mac->type) { case e1000_82576: case e1000_i350:
igb_init_mbx_params_pf(hw); break; default: break;
}
/* Extra read required for some PHY's on i354 */ if (hw->mac.type == e1000_i354)
igb_get_phy_id(hw);
/* For SGMII PHYs, we try the list of possible addresses until *wefindonethatworks.Fornon-SGMIIPHYs *(e.g.integratedcopperPHYs),anaddressof1should *work.Theresultofthisfunctionshouldmeanphy->phy_addr *andphy->idaresetcorrectly.
*/ if (!(igb_sgmii_active_82575(hw))) {
phy->addr = 1;
ret_val = igb_get_phy_id(hw); goto out;
}
if (igb_sgmii_uses_mdio_82575(hw)) { switch (hw->mac.type) { case e1000_82575: case e1000_82576:
mdic = rd32(E1000_MDIC);
mdic &= E1000_MDIC_PHY_MASK;
phy->addr = mdic >> E1000_MDIC_PHY_SHIFT; break; case e1000_82580: case e1000_i350: case e1000_i354: case e1000_i210: case e1000_i211:
mdic = rd32(E1000_MDICNFG);
mdic &= E1000_MDICNFG_PHY_MASK;
phy->addr = mdic >> E1000_MDICNFG_PHY_SHIFT; break; default:
ret_val = -E1000_ERR_PHY; goto out;
}
ret_val = igb_get_phy_id(hw); goto out;
}
/* Power on sgmii phy if it is disabled */
ctrl_ext = rd32(E1000_CTRL_EXT);
wr32(E1000_CTRL_EXT, ctrl_ext & ~E1000_CTRL_EXT_SDP3_DATA);
wrfl();
msleep(300);
/* The address field in the I2CCMD register is 3 bits and 0 is invalid. *Therefore,weneedtotest1-7
*/ for (phy->addr = 1; phy->addr < 8; phy->addr++) {
ret_val = igb_read_phy_reg_sgmii_82575(hw, PHY_ID1, &phy_id); if (ret_val == 0) {
hw_dbg("Vendor ID 0x%08X read at address %u\n",
phy_id, phy->addr); /* At the time of this writing, The M88 part is *theonlysupportedSGMIIPHYproduct.
*/ if (phy_id == M88_VENDOR) break;
} else {
hw_dbg("PHY address %u was unreadable\n", phy->addr);
}
}
/* A valid PHY type couldn't be found. */ if (phy->addr == 8) {
phy->addr = 0;
ret_val = -E1000_ERR_PHY; goto out;
} else {
ret_val = igb_get_phy_id(hw);
}
/* restore previous sfp cage power state */
wr32(E1000_CTRL_EXT, ctrl_ext);
/* This isn't a true "hard" reset, but is the only reset *availabletousatthistime.
*/
hw_dbg("Soft resetting SGMII attached PHY...\n");
/* SFP documentation requires the following to configure the SPF module *toworkonSGMII.Nofurtherdocumentationisgiven.
*/
ret_val = hw->phy.ops.write_reg(hw, 0x1B, 0x8084); if (ret_val) goto out;
ret_val = igb_phy_sw_reset(hw); if (ret_val) goto out;
if (phy->id == M88E1512_E_PHY_ID)
ret_val = igb_initialize_M88E1512_phy(hw); if (phy->id == M88E1543_E_PHY_ID)
ret_val = igb_initialize_M88E1543_phy(hw);
out: return ret_val;
}
/* When LPLU is enabled, we should disable SmartSpeed */
data &= ~E1000_82580_PM_SPD;
} else {
data &= ~E1000_82580_PM_D0_LPLU;
/* LPLU and SmartSpeed are mutually exclusive. LPLU is used *duringDxstateswherethepowerconservationismost *important.Duringdriveractivityweshouldenable *SmartSpeed,soperformanceismaintained.
*/ if (phy->smart_speed == e1000_smart_speed_on)
data |= E1000_82580_PM_SPD; elseif (phy->smart_speed == e1000_smart_speed_off)
data &= ~E1000_82580_PM_SPD; }
if (!active) {
data &= ~E1000_82580_PM_D3_LPLU; /* LPLU and SmartSpeed are mutually exclusive. LPLU is used *duringDxstateswherethepowerconservationismost *important.Duringdriveractivityweshouldenable *SmartSpeed,soperformanceismaintained.
*/ if (phy->smart_speed == e1000_smart_speed_on)
data |= E1000_82580_PM_SPD; elseif (phy->smart_speed == e1000_smart_speed_off)
data &= ~E1000_82580_PM_SPD;
} elseif ((phy->autoneg_advertised == E1000_ALL_SPEED_DUPLEX) ||
(phy->autoneg_advertised == E1000_ALL_NOT_GIG) ||
(phy->autoneg_advertised == E1000_ALL_10_SPEED)) {
data |= E1000_82580_PM_D3_LPLU; /* When LPLU is enabled, we should disable SmartSpeed */
data &= ~E1000_82580_PM_SPD;
}
while (timeout) { if (rd32(E1000_EEMNGCTL) & mask) break;
usleep_range(1000, 2000);
timeout--;
} if (!timeout)
hw_dbg("MNG configuration cycle has not completed.\n");
/* If EEPROM is not marked present, init the PHY manually */ if (((rd32(E1000_EECD) & E1000_EECD_PRES) == 0) &&
(hw->phy.type == e1000_phy_igp_3))
igb_phy_init_script_igp3(hw);
if (hw->phy.media_type != e1000_media_type_copper) {
ret_val = igb_get_pcs_speed_and_duplex_82575(hw, &speed,
&duplex); /* Use this flag to determine if link needs to be checked or *not.Ifwehavelinkcleartheflagsothatwedonot *continuetocheckforlink.
*/
hw->mac.get_link_status = !hw->mac.serdes_has_link;
/* Configure Flow Control now that Auto-Neg has completed. *First,weneedtorestorethedesiredflowcontrol *settingsbecausewemayhavehadtore-autonegwitha *differentlinkpartner.
*/
ret_val = igb_config_fc_after_link_up(hw); if (ret_val)
hw_dbg("Error configuring flow control\n");
} else {
ret_val = igb_check_for_copper_link(hw);
}
/* Set up defaults for the return values of this function */
mac->serdes_has_link = false;
*speed = 0;
*duplex = 0;
/* Read the PCS Status register for link state. For non-copper mode, *thestatusregisterisnotaccurate.ThePCSstatusregisteris *usedinstead.
*/
pcs = rd32(E1000_PCS_LSTAT);
/* The link up bit determines when link is up on autoneg. The sync ok *getssetoncebothsidessyncupandagreeuponlink.Stablelink *canbedeterminedbycheckingforbothlinkupandlinksyncok
*/ if ((pcs & E1000_PCS_LSTS_LINK_OK) && (pcs & E1000_PCS_LSTS_SYNK_OK)) {
mac->serdes_has_link = true;
/* Detect and store PCS speed */ if (pcs & E1000_PCS_LSTS_SPEED_1000)
*speed = SPEED_1000; elseif (pcs & E1000_PCS_LSTS_SPEED_100)
*speed = SPEED_100; else
*speed = SPEED_10;
/* Detect and store PCS duplex */ if (pcs & E1000_PCS_LSTS_DUPLEX_FULL)
*duplex = FULL_DUPLEX; else
*duplex = HALF_DUPLEX;
/* Check if it is an I354 2.5Gb backplane connection. */ if (mac->type == e1000_i354) {
status = rd32(E1000_STATUS); if ((status & E1000_STATUS_2P5_SKU) &&
!(status & E1000_STATUS_2P5_SKU_OVER)) {
*speed = SPEED_2500;
*duplex = FULL_DUPLEX;
hw_dbg("2500 Mbs, ");
hw_dbg("Full Duplex\n");
}
}
if (hw->phy.media_type != e1000_media_type_internal_serdes &&
igb_sgmii_active_82575(hw)) return;
if (!igb_enable_mng_pass_thru(hw)) { /* Disable PCS to turn off link */
reg = rd32(E1000_PCS_CFG0);
reg &= ~E1000_PCS_CFG_PCS_EN;
wr32(E1000_PCS_CFG0, reg);
/* Prevent the PCI-E bus from sticking if there is no TLP connection *onthelastTLPread/writetransactionwhenMACisreset.
*/
ret_val = igb_disable_pcie_master(hw); if (ret_val)
hw_dbg("PCI-E Master disable polling has failed.\n");
/* set the completion timeout for interface */
ret_val = igb_set_pcie_completion_timeout(hw); if (ret_val)
hw_dbg("PCI-E Set completion timeout has failed.\n");
hw_dbg("Masking off all interrupts\n");
wr32(E1000_IMC, 0xffffffff);
hw_dbg("Issuing a global reset to MAC\n");
wr32(E1000_CTRL, ctrl | E1000_CTRL_RST);
ret_val = igb_get_auto_rd_done(hw); if (ret_val) { /* When auto config read does not complete, do not *returnwithanerror.Thiscanhappeninsituations *wherethereisnoeepromandpreventsgettinglink.
*/
hw_dbg("Auto Read Done did not complete\n");
}
/* If EEPROM is not present, run manual init scripts */ if ((rd32(E1000_EECD) & E1000_EECD_PRES) == 0)
igb_reset_init_script_82575(hw);
/* Clear any pending interrupt events. */
wr32(E1000_IMC, 0xffffffff);
rd32(E1000_ICR);
/* Install any alternate MAC address into RAR0 */
ret_val = igb_check_alt_mac_addr(hw);
if ((hw->mac.type >= e1000_i210) &&
!(igb_get_flash_presence_i210(hw))) {
ret_val = igb_pll_workaround_i210(hw); if (ret_val) return ret_val;
}
/* Initialize identification LED */
ret_val = igb_id_led_init(hw); if (ret_val) {
hw_dbg("Error initializing identification LED\n"); /* This is not fatal and we should not stop init due to this */
}
/* Disabling VLAN filtering */
hw_dbg("Initializing the IEEE VLAN\n");
igb_clear_vfta(hw);
/* Setup the receive address */
igb_init_rx_addrs(hw, rar_count);
/* Zero out the Multicast HASH table */
hw_dbg("Zeroing the MTA\n"); for (i = 0; i < mac->mta_reg_count; i++)
array_wr32(E1000_MTA, i, 0);
/* Zero out the Unicast HASH table */
hw_dbg("Zeroing the UTA\n"); for (i = 0; i < mac->uta_reg_count; i++)
array_wr32(E1000_UTA, i, 0);
/* Setup link and flow control */
ret_val = igb_setup_link(hw);
/* Clear all of the statistics registers (clear on read). It is *importantthatwedothisafterwehavetriedtoestablishlink *becausethesymbolerrorcountwillincrementwildlyifthere *isnolink.
*/
igb_clear_hw_cntrs_82575(hw); return ret_val;
}
/* Clear Go Link Disconnect bit on supported devices */ switch (hw->mac.type) { case e1000_82580: case e1000_i350: case e1000_i210: case e1000_i211:
phpm_reg = rd32(E1000_82580_PHY_POWER_MGMT);
phpm_reg &= ~E1000_82580_PM_GO_LINKD;
wr32(E1000_82580_PHY_POWER_MGMT, phpm_reg); break; default: break;
}
ret_val = igb_setup_serdes_link_82575(hw); if (ret_val) goto out;
if (igb_sgmii_active_82575(hw) && !hw->phy.reset_disable) { /* allow time for SFP cage time to power up phy */
msleep(300);
ret_val = hw->phy.ops.reset(hw); if (ret_val) {
hw_dbg("Error resetting the PHY.\n"); goto out;
}
} switch (hw->phy.type) { case e1000_phy_i210: case e1000_phy_m88: switch (hw->phy.id) { case I347AT4_E_PHY_ID: case M88E1112_E_PHY_ID: case M88E1543_E_PHY_ID: case M88E1512_E_PHY_ID: case I210_I_PHY_ID:
ret_val = igb_copper_link_setup_m88_gen2(hw); break; default:
ret_val = igb_copper_link_setup_m88(hw); break;
} break; case e1000_phy_igp_3:
ret_val = igb_copper_link_setup_igp(hw); break; case e1000_phy_82580:
ret_val = igb_copper_link_setup_82580(hw); break; case e1000_phy_bcm54616:
ret_val = 0; break; default:
ret_val = -E1000_ERR_PHY; break;
}
if ((hw->phy.media_type != e1000_media_type_internal_serdes) &&
!igb_sgmii_active_82575(hw)) return ret_val;
/* On the 82575, SerDes loopback mode persists until it is *explicitlyturnedofforapowercycleisperformed.Areadto *theregisterdoesnotindicateitsstatus.Therefore,weensure *loopbackmodeisdisabledduringinitialization.
*/
wr32(E1000_SCTL, E1000_SCTL_DISABLE_SERDES_LOOPBACK);
/* power on the sfp cage if present and turn on I2C */
ctrl_ext = rd32(E1000_CTRL_EXT);
ctrl_ext &= ~E1000_CTRL_EXT_SDP3_DATA;
ctrl_ext |= E1000_CTRL_I2C_ENA;
wr32(E1000_CTRL_EXT, ctrl_ext);
if (hw->mac.type == e1000_82575 || hw->mac.type == e1000_82576) { /* set both sw defined pins */
ctrl_reg |= E1000_CTRL_SWDPIN0 | E1000_CTRL_SWDPIN1;
/* Set switch control to serdes energy detect */
reg = rd32(E1000_CONNSW);
reg |= E1000_CONNSW_ENRGSRC;
wr32(E1000_CONNSW, reg);
}
reg = rd32(E1000_PCS_LCTL);
/* default pcs_autoneg to the same setting as mac autoneg */
pcs_autoneg = hw->mac.autoneg;
switch (ctrl_ext & E1000_CTRL_EXT_LINK_MODE_MASK) { case E1000_CTRL_EXT_LINK_MODE_SGMII: /* sgmii mode lets the phy handle forcing speed/duplex */
pcs_autoneg = true; /* autoneg time out should be disabled for SGMII mode */
reg &= ~(E1000_PCS_LCTL_AN_TIMEOUT); break; case E1000_CTRL_EXT_LINK_MODE_1000BASE_KX: /* disable PCS autoneg and support parallel detect only */
pcs_autoneg = false;
fallthrough; default: if (hw->mac.type == e1000_82575 ||
hw->mac.type == e1000_82576) {
ret_val = hw->nvm.ops.read(hw, NVM_COMPAT, 1, &data); if (ret_val) {
hw_dbg(KERN_DEBUG "NVM Read Error\n\n"); return ret_val;
}
if (data & E1000_EEPROM_PCS_AUTONEG_DISABLE_BIT)
pcs_autoneg = false;
}
/* non-SGMII modes only supports a speed of 1000/Full for the *linksoitisbesttojustforcetheMACandletthepcs *linkeitherautonegorbeforcedto1000/Full
*/
ctrl_reg |= E1000_CTRL_SPD_1000 | E1000_CTRL_FRCSPD |
E1000_CTRL_FD | E1000_CTRL_FRCDPX;
/* set speed of 1000/Full if speed/duplex is forced */
reg |= E1000_PCS_LCTL_FSV_1000 | E1000_PCS_LCTL_FDV_FULL; break;
}
wr32(E1000_CTRL, ctrl_reg);
/* New SerDes mode allows for forcing speed or autonegotiating speed *at1gb.Autonegshouldbedefaultsetbymostdrivers.Thisisthe *modethatwillbecompatiblewitholderlinkpartnersandswitches. *However,botharesupportedbythehardwareandsomedrivers/tools.
*/
reg &= ~(E1000_PCS_LCTL_AN_ENABLE | E1000_PCS_LCTL_FLV_LINK_UP |
E1000_PCS_LCTL_FSD | E1000_PCS_LCTL_FORCE_LINK);
if (pcs_autoneg) { /* Set PCS register for autoneg */
reg |= E1000_PCS_LCTL_AN_ENABLE | /* Enable Autoneg */
E1000_PCS_LCTL_AN_RESTART; /* Restart autoneg */
/* Disable force flow control for autoneg */
reg &= ~E1000_PCS_LCTL_FORCE_FCTRL;
/* Configure flow control advertisement for autoneg */
anadv_reg = rd32(E1000_PCS_ANADV);
anadv_reg &= ~(E1000_TXCW_ASM_DIR | E1000_TXCW_PAUSE); switch (hw->fc.requested_mode) { case e1000_fc_full: case e1000_fc_rx_pause:
anadv_reg |= E1000_TXCW_ASM_DIR;
anadv_reg |= E1000_TXCW_PAUSE; break; case e1000_fc_tx_pause:
anadv_reg |= E1000_TXCW_ASM_DIR; break; default: break;
}
wr32(E1000_PCS_ANADV, anadv_reg);
hw_dbg("Configuring Autoneg:PCS_LCTL=0x%08X\n", reg);
} else { /* Set PCS register for forced link */
reg |= E1000_PCS_LCTL_FSD; /* Force Speed */
/* Force flow control for forced link */
reg |= E1000_PCS_LCTL_FORCE_FCTRL;
/* If there's an alternate MAC address place it in RAR0 *sothatitwilloverridetheSiinstalleddefaultperm *address.
*/
ret_val = igb_check_alt_mac_addr(hw); if (ret_val) goto out;
ret_val = igb_read_mac_addr(hw);
out: return ret_val;
}
/** *igb_power_down_phy_copper_82575-RemovelinkduringPHYpowerdown *@hw:pointertotheHWstructure * *InthecaseofaPHYpowerdowntosavepower,ortoturnofflinkduringa *driverunload,orwakeonlanisnotenabled,removethelink.
**/ void igb_power_down_phy_copper_82575(struct e1000_hw *hw)
{ /* If the management interface is not enabled, then power down */ if (!(igb_enable_mng_pass_thru(hw) || igb_check_reset_block(hw)))
igb_power_down_phy_copper(hw);
}
/* This register should not be read in copper configurations */ if (hw->phy.media_type == e1000_media_type_internal_serdes ||
igb_sgmii_active_82575(hw))
rd32(E1000_SCVPC);
}
/* disable IPv6 options as per hardware errata */
rfctl = rd32(E1000_RFCTL);
rfctl |= E1000_RFCTL_IPV6_EX_DIS;
wr32(E1000_RFCTL, rfctl);
if (hw->mac.type != e1000_82575 ||
!(rd32(E1000_MANC) & E1000_MANC_RCV_TCO_EN)) return;
/* Disable all RX queues */ for (i = 0; i < 4; i++) {
rxdctl[i] = rd32(E1000_RXDCTL(i));
wr32(E1000_RXDCTL(i),
rxdctl[i] & ~E1000_RXDCTL_QUEUE_ENABLE);
} /* Poll all queues to verify they have shut down */ for (ms_wait = 0; ms_wait < 10; ms_wait++) {
usleep_range(1000, 2000);
rx_enabled = 0; for (i = 0; i < 4; i++)
rx_enabled |= rd32(E1000_RXDCTL(i)); if (!(rx_enabled & E1000_RXDCTL_QUEUE_ENABLE)) break;
}
if (ms_wait == 10)
hw_dbg("Queue disable timed out after 10ms\n");
/* Clear RLPML, RCTL.SBP, RFCTL.LEF, and set RCTL.LPE so that all *incomingpacketsarerejected.Setenableandwait2mssothat *anypacketthatwascominginasRCTL.ENwassetisflushed
*/
wr32(E1000_RFCTL, rfctl & ~E1000_RFCTL_LEF);
/* Enable RX queues that were previously enabled and restore our *previousstate
*/ for (i = 0; i < 4; i++)
wr32(E1000_RXDCTL(i), rxdctl[i]);
wr32(E1000_RCTL, rctl);
wrfl();
/* only take action if timeout value is defaulted to 0 */ if (gcr & E1000_GCR_CMPL_TMOUT_MASK) goto out;
/* if capabilities version is type 1 we can write the *timeoutof10msto200msthroughtheGCRregister
*/ if (!(gcr & E1000_GCR_CAP_VER2)) {
gcr |= E1000_GCR_CMPL_TMOUT_10ms; goto out;
}
/* for version 2 capabilities we need to write the config space *directlyinordertosetthecompletiontimeoutvaluefor *16msto55ms
*/
ret_val = igb_read_pcie_cap_reg(hw, PCIE_DEVICE_CONTROL2,
&pcie_devctl2); if (ret_val) goto out;
switch (hw->mac.type) { case e1000_82576:
reg_offset = E1000_DTXSWC; break; case e1000_i350: case e1000_i354:
reg_offset = E1000_TXSWC; break; default: return;
}
reg_val = rd32(reg_offset); if (enable) {
reg_val |= (E1000_DTXSWC_MAC_SPOOF_MASK |
E1000_DTXSWC_VLAN_SPOOF_MASK); /* The PF can spoof - it has to in order to *supportemulationmodeNICs
*/
reg_val ^= (BIT(pf) | BIT(pf + MAX_NUM_VFS));
} else {
reg_val &= ~(E1000_DTXSWC_MAC_SPOOF_MASK |
E1000_DTXSWC_VLAN_SPOOF_MASK);
}
wr32(reg_offset, reg_val);
}
/* due to hw errata, global device reset doesn't always *workon82580
*/ if (hw->mac.type == e1000_82580)
global_device_reset = false;
/* Get current control state. */
ctrl = rd32(E1000_CTRL);
/* Prevent the PCI-E bus from sticking if there is no TLP connection *onthelastTLPread/writetransactionwhenMACisreset.
*/
ret_val = igb_disable_pcie_master(hw); if (ret_val)
hw_dbg("PCI-E Master disable polling has failed.\n");
hw_dbg("Masking off all interrupts\n");
wr32(E1000_IMC, 0xffffffff);
wr32(E1000_RCTL, 0);
wr32(E1000_TCTL, E1000_TCTL_PSP);
wrfl();
usleep_range(10000, 11000);
/* Determine whether or not a global dev reset is requested */ if (global_device_reset &&
hw->mac.ops.acquire_swfw_sync(hw, swmbsw_mask))
global_device_reset = false;
/* Add delay to insure DEV_RST has time to complete */ if (global_device_reset)
usleep_range(5000, 6000);
ret_val = igb_get_auto_rd_done(hw); if (ret_val) { /* When auto config read does not complete, do not *returnwithanerror.Thiscanhappeninsituations *wherethereisnoeepromandpreventsgettinglink.
*/
hw_dbg("Auto Read Done did not complete\n");
}
/* clear global device reset status bit */
wr32(E1000_STATUS, E1000_STAT_DEV_RST_SET);
/* Clear any pending interrupt events. */
wr32(E1000_IMC, 0xffffffff);
rd32(E1000_ICR);
ret_val = igb_reset_mdicnfg_82580(hw); if (ret_val)
hw_dbg("Could not reset MDICNFG based on EEPROM\n");
/* Install any alternate MAC address into RAR0 */
ret_val = igb_check_alt_mac_addr(hw);
/* Release semaphore */ if (global_device_reset)
hw->mac.ops.release_swfw_sync(hw, swmbsw_mask);
/* Check if EEE is supported on this device. */ if ((hw->phy.media_type != e1000_media_type_copper) ||
((phy->id != M88E1543_E_PHY_ID) &&
(phy->id != M88E1512_E_PHY_ID))) goto out;
ret_val = igb_read_xmdio_reg(hw, E1000_PCS_STATUS_ADDR_I354,
E1000_PCS_STATUS_DEV_I354,
&phy_data); if (ret_val) goto out;
/* Return the internal sensor only if ETS is unsupported */
hw->nvm.ops.read(hw, NVM_ETS_CFG, 1, &ets_offset); if ((ets_offset == 0x0000) || (ets_offset == 0xFFFF)) return0;
/* Return the internal sensor only if ETS is unsupported */
hw->nvm.ops.read(hw, NVM_ETS_CFG, 1, &ets_offset); if ((ets_offset == 0x0000) || (ets_offset == 0xFFFF)) return0;
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