* 82578DC Gigabit Network Connection
* 82579LM Gigabit Network Connection
* 82579V Gigabit Network Connection
+ * Ethernet Connection I217-LM
+ * Ethernet Connection I217-V
+ * Ethernet Connection I218-V
+ * Ethernet Connection I218-LM
+#ifdef NAHUM6_LPTH_I218_HW
+ * Ethernet Connection (2) I218-LM
+ * Ethernet Connection (2) I218-V
+#endif
+#ifdef NAHUM6_WPT_HW
+ * Ethernet Connection (3) I218-LM
+ * Ethernet Connection (3) I218-V
+#endif
*/
#include "e1000_api.h"
+#if defined(NAHUM6LP_HW) && defined(ULP_IN_D0_SUPPORT)
+static s32 e1000_oem_bits_config_ich8lan(struct e1000_hw *hw, bool d0_state);
+#endif /* NAHUM6LP_HW && ULP_SUPPORT */
STATIC s32 e1000_acquire_swflag_ich8lan(struct e1000_hw *hw);
STATIC void e1000_release_swflag_ich8lan(struct e1000_hw *hw);
STATIC s32 e1000_acquire_nvm_ich8lan(struct e1000_hw *hw);
STATIC bool e1000_check_mng_mode_ich8lan(struct e1000_hw *hw);
STATIC bool e1000_check_mng_mode_pchlan(struct e1000_hw *hw);
STATIC void e1000_rar_set_pch2lan(struct e1000_hw *hw, u8 *addr, u32 index);
+STATIC void e1000_rar_set_pch_lpt(struct e1000_hw *hw, u8 *addr, u32 index);
+STATIC s32 e1000_sw_lcd_config_ich8lan(struct e1000_hw *hw);
+#ifndef NO_NON_BLOCKING_PHY_MTA_UPDATE_SUPPORT
+STATIC void e1000_update_mc_addr_list_pch2lan(struct e1000_hw *hw,
+ u8 *mc_addr_list,
+ u32 mc_addr_count);
+#endif /* NO_NON_BLOCKING_PHY_MTA_UPDATE_SUPPORT */
STATIC s32 e1000_check_reset_block_ich8lan(struct e1000_hw *hw);
STATIC s32 e1000_phy_hw_reset_ich8lan(struct e1000_hw *hw);
STATIC s32 e1000_set_lplu_state_pchlan(struct e1000_hw *hw, bool active);
STATIC s32 e1000_init_hw_ich8lan(struct e1000_hw *hw);
STATIC s32 e1000_setup_link_ich8lan(struct e1000_hw *hw);
STATIC s32 e1000_setup_copper_link_ich8lan(struct e1000_hw *hw);
+STATIC s32 e1000_setup_copper_link_pch_lpt(struct e1000_hw *hw);
STATIC s32 e1000_get_link_up_info_ich8lan(struct e1000_hw *hw,
u16 *speed, u16 *duplex);
STATIC s32 e1000_cleanup_led_ich8lan(struct e1000_hw *hw);
{
u16 phy_reg = 0;
u32 phy_id = 0;
- s32 ret_val;
+ s32 ret_val = 0;
u16 retry_count;
+ u32 mac_reg = 0;
for (retry_count = 0; retry_count < 2; retry_count++) {
ret_val = hw->phy.ops.read_reg_locked(hw, PHY_ID1, &phy_reg);
if (hw->phy.id) {
if (hw->phy.id == phy_id)
- return true;
+ goto out;
} else if (phy_id) {
hw->phy.id = phy_id;
hw->phy.revision = (u32)(phy_reg & ~PHY_REVISION_MASK);
- return true;
+ goto out;
}
- /*
- * In case the PHY needs to be in mdio slow mode,
+ /* In case the PHY needs to be in mdio slow mode,
* set slow mode and try to get the PHY id again.
*/
- hw->phy.ops.release(hw);
- ret_val = e1000_set_mdio_slow_mode_hv(hw);
- if (!ret_val)
- ret_val = e1000_get_phy_id(hw);
- hw->phy.ops.acquire(hw);
+ if (hw->mac.type < e1000_pch_lpt) {
+ hw->phy.ops.release(hw);
+ ret_val = e1000_set_mdio_slow_mode_hv(hw);
+ if (!ret_val)
+ ret_val = e1000_get_phy_id(hw);
+ hw->phy.ops.acquire(hw);
+ }
- return !ret_val;
+ if (ret_val)
+ return false;
+out:
+ if (hw->mac.type == e1000_pch_lpt) {
+ /* Unforce SMBus mode in PHY */
+ hw->phy.ops.read_reg_locked(hw, CV_SMB_CTRL, &phy_reg);
+ phy_reg &= ~CV_SMB_CTRL_FORCE_SMBUS;
+ hw->phy.ops.write_reg_locked(hw, CV_SMB_CTRL, phy_reg);
+
+ /* Unforce SMBus mode in MAC */
+ mac_reg = E1000_READ_REG(hw, E1000_CTRL_EXT);
+ mac_reg &= ~E1000_CTRL_EXT_FORCE_SMBUS;
+ E1000_WRITE_REG(hw, E1000_CTRL_EXT, mac_reg);
+ }
+
+ return true;
+}
+
+/**
+ * e1000_toggle_lanphypc_pch_lpt - toggle the LANPHYPC pin value
+ * @hw: pointer to the HW structure
+ *
+ * Toggling the LANPHYPC pin value fully power-cycles the PHY and is
+ * used to reset the PHY to a quiescent state when necessary.
+ **/
+void e1000_toggle_lanphypc_pch_lpt(struct e1000_hw *hw)
+{
+ u32 mac_reg;
+
+ DEBUGFUNC("e1000_toggle_lanphypc_pch_lpt");
+
+ /* Set Phy Config Counter to 50msec */
+ mac_reg = E1000_READ_REG(hw, E1000_FEXTNVM3);
+ mac_reg &= ~E1000_FEXTNVM3_PHY_CFG_COUNTER_MASK;
+ mac_reg |= E1000_FEXTNVM3_PHY_CFG_COUNTER_50MSEC;
+ E1000_WRITE_REG(hw, E1000_FEXTNVM3, mac_reg);
+
+ /* Toggle LANPHYPC Value bit */
+ mac_reg = E1000_READ_REG(hw, E1000_CTRL);
+ mac_reg |= E1000_CTRL_LANPHYPC_OVERRIDE;
+ mac_reg &= ~E1000_CTRL_LANPHYPC_VALUE;
+ E1000_WRITE_REG(hw, E1000_CTRL, mac_reg);
+ E1000_WRITE_FLUSH(hw);
+ usec_delay(10);
+ mac_reg &= ~E1000_CTRL_LANPHYPC_OVERRIDE;
+ E1000_WRITE_REG(hw, E1000_CTRL, mac_reg);
+ E1000_WRITE_FLUSH(hw);
+
+ if (hw->mac.type < e1000_pch_lpt) {
+ msec_delay(50);
+ } else {
+ u16 count = 20;
+
+ do {
+ msec_delay(5);
+ } while (!(E1000_READ_REG(hw, E1000_CTRL_EXT) &
+ E1000_CTRL_EXT_LPCD) && count--);
+
+ msec_delay(30);
+ }
}
/**
DEBUGFUNC("e1000_init_phy_workarounds_pchlan");
+ /* Gate automatic PHY configuration by hardware on managed and
+ * non-managed 82579 and newer adapters.
+ */
+ e1000_gate_hw_phy_config_ich8lan(hw, true);
+
+#if defined(NAHUM6LP_HW) && defined(ULP_SUPPORT)
+ /* It is not possible to be certain of the current state of ULP
+ * so forcibly disable it.
+ */
+ hw->dev_spec.ich8lan.ulp_state = e1000_ulp_state_unknown;
+
+#endif /* NAHUM6LP_HW && ULP_SUPPORT */
ret_val = hw->phy.ops.acquire(hw);
if (ret_val) {
DEBUGOUT("Failed to initialize PHY flow\n");
- return ret_val;
+ goto out;
}
- /*
- * The MAC-PHY interconnect may be in SMBus mode. If the PHY is
+ /* The MAC-PHY interconnect may be in SMBus mode. If the PHY is
* inaccessible and resetting the PHY is not blocked, toggle the
* LANPHYPC Value bit to force the interconnect to PCIe mode.
*/
switch (hw->mac.type) {
- case e1000_pch2lan:
- /*
- * Gate automatic PHY configuration by hardware on
- * non-managed 82579
+ case e1000_pch_lpt:
+ if (e1000_phy_is_accessible_pchlan(hw))
+ break;
+
+ /* Before toggling LANPHYPC, see if PHY is accessible by
+ * forcing MAC to SMBus mode first.
*/
- if ((hw->mac.type == e1000_pch2lan) &&
- !(fwsm & E1000_ICH_FWSM_FW_VALID))
- e1000_gate_hw_phy_config_ich8lan(hw, true);
+ mac_reg = E1000_READ_REG(hw, E1000_CTRL_EXT);
+ mac_reg |= E1000_CTRL_EXT_FORCE_SMBUS;
+ E1000_WRITE_REG(hw, E1000_CTRL_EXT, mac_reg);
+
+ /* Wait 50 milliseconds for MAC to finish any retries
+ * that it might be trying to perform from previous
+ * attempts to acknowledge any phy read requests.
+ */
+ msec_delay(50);
- if (e1000_phy_is_accessible_pchlan(hw)) {
+ /* fall-through */
+ case e1000_pch2lan:
+ if (e1000_phy_is_accessible_pchlan(hw))
break;
- }
/* fall-through */
case e1000_pchlan:
if (hw->phy.ops.check_reset_block(hw)) {
DEBUGOUT("Required LANPHYPC toggle blocked by ME\n");
+ ret_val = -E1000_ERR_PHY;
break;
}
- DEBUGOUT("Toggling LANPHYPC\n");
+ /* Toggle LANPHYPC Value bit */
+ e1000_toggle_lanphypc_pch_lpt(hw);
+ if (hw->mac.type >= e1000_pch_lpt) {
+ if (e1000_phy_is_accessible_pchlan(hw))
+ break;
+
+ /* Toggling LANPHYPC brings the PHY out of SMBus mode
+ * so ensure that the MAC is also out of SMBus mode
+ */
+ mac_reg = E1000_READ_REG(hw, E1000_CTRL_EXT);
+ mac_reg &= ~E1000_CTRL_EXT_FORCE_SMBUS;
+ E1000_WRITE_REG(hw, E1000_CTRL_EXT, mac_reg);
- /* Set Phy Config Counter to 50msec */
- mac_reg = E1000_READ_REG(hw, E1000_FEXTNVM3);
- mac_reg &= ~E1000_FEXTNVM3_PHY_CFG_COUNTER_MASK;
- mac_reg |= E1000_FEXTNVM3_PHY_CFG_COUNTER_50MSEC;
- E1000_WRITE_REG(hw, E1000_FEXTNVM3, mac_reg);
+ if (e1000_phy_is_accessible_pchlan(hw))
+ break;
- /* Toggle LANPHYPC Value bit */
- mac_reg = E1000_READ_REG(hw, E1000_CTRL);
- mac_reg |= E1000_CTRL_LANPHYPC_OVERRIDE;
- mac_reg &= ~E1000_CTRL_LANPHYPC_VALUE;
- E1000_WRITE_REG(hw, E1000_CTRL, mac_reg);
- E1000_WRITE_FLUSH(hw);
- usec_delay(10);
- mac_reg &= ~E1000_CTRL_LANPHYPC_OVERRIDE;
- E1000_WRITE_REG(hw, E1000_CTRL, mac_reg);
- E1000_WRITE_FLUSH(hw);
- msec_delay(50);
+ ret_val = -E1000_ERR_PHY;
+ }
break;
default:
break;
}
hw->phy.ops.release(hw);
+ if (!ret_val) {
- /*
- * Reset the PHY before any access to it. Doing so, ensures
- * that the PHY is in a known good state before we read/write
- * PHY registers. The generic reset is sufficient here,
- * because we haven't determined the PHY type yet.
- */
- ret_val = e1000_phy_hw_reset_generic(hw);
+ /* Check to see if able to reset PHY. Print error if not */
+ if (hw->phy.ops.check_reset_block(hw)) {
+ ERROR_REPORT("Reset blocked by ME\n");
+ goto out;
+ }
+ /* Reset the PHY before any access to it. Doing so, ensures
+ * that the PHY is in a known good state before we read/write
+ * PHY registers. The generic reset is sufficient here,
+ * because we haven't determined the PHY type yet.
+ */
+ ret_val = e1000_phy_hw_reset_generic(hw);
+ if (ret_val)
+ goto out;
+
+ /* On a successful reset, possibly need to wait for the PHY
+ * to quiesce to an accessible state before returning control
+ * to the calling function. If the PHY does not quiesce, then
+ * return E1000E_BLK_PHY_RESET, as this is the condition that
+ * the PHY is in.
+ */
+ ret_val = hw->phy.ops.check_reset_block(hw);
+ if (ret_val)
+ ERROR_REPORT("ME blocked access to PHY after reset\n");
+ }
+
+out:
/* Ungate automatic PHY configuration on non-managed 82579 */
if ((hw->mac.type == e1000_pch2lan) &&
!(fwsm & E1000_ICH_FWSM_FW_VALID)) {
STATIC s32 e1000_init_mac_params_ich8lan(struct e1000_hw *hw)
{
struct e1000_mac_info *mac = &hw->mac;
+#if defined(QV_RELEASE) || !defined(NO_PCH_LPT_B0_SUPPORT)
+ u16 pci_cfg;
+#endif /* QV_RELEASE || !defined(NO_PCH_LPT_B0_SUPPORT) */
DEBUGFUNC("e1000_init_mac_params_ich8lan");
mac->rar_entry_count = E1000_PCH2_RAR_ENTRIES;
mac->ops.rar_set = e1000_rar_set_pch2lan;
/* fall-through */
+ case e1000_pch_lpt:
+#ifndef NO_NON_BLOCKING_PHY_MTA_UPDATE_SUPPORT
+ /* multicast address update for pch2 */
+ mac->ops.update_mc_addr_list =
+ e1000_update_mc_addr_list_pch2lan;
+#endif
case e1000_pchlan:
+#if defined(QV_RELEASE) || !defined(NO_PCH_LPT_B0_SUPPORT)
+ /* save PCH revision_id */
+ e1000_read_pci_cfg(hw, E1000_PCI_REVISION_ID_REG, &pci_cfg);
+ hw->revision_id = (u8)(pci_cfg &= 0x000F);
+#endif /* QV_RELEASE || !defined(NO_PCH_LPT_B0_SUPPORT) */
/* check management mode */
mac->ops.check_mng_mode = e1000_check_mng_mode_pchlan;
/* ID LED init */
break;
}
+ if (mac->type == e1000_pch_lpt) {
+ mac->rar_entry_count = E1000_PCH_LPT_RAR_ENTRIES;
+ mac->ops.rar_set = e1000_rar_set_pch_lpt;
+ mac->ops.setup_physical_interface = e1000_setup_copper_link_pch_lpt;
+ }
+
/* Enable PCS Lock-loss workaround for ICH8 */
if (mac->type == e1000_ich8lan)
e1000_set_kmrn_lock_loss_workaround_ich8lan(hw, true);
- /* Gate automatic PHY configuration by hardware on managed 82579 */
- if ((mac->type == e1000_pch2lan) &&
- (E1000_READ_REG(hw, E1000_FWSM) & E1000_ICH_FWSM_FW_VALID))
- e1000_gate_hw_phy_config_ich8lan(hw, true);
-
return E1000_SUCCESS;
}
*
* Assumes the SW/FW/HW Semaphore is already acquired.
**/
-STATIC s32 e1000_write_emi_reg_locked(struct e1000_hw *hw, u16 addr, u16 data)
+s32 e1000_write_emi_reg_locked(struct e1000_hw *hw, u16 addr, u16 data)
{
DEBUGFUNC("e1000_read_emi_reg_locked");
* Enable/disable EEE based on setting in dev_spec structure, the duplex of
* the link and the EEE capabilities of the link partner. The LPI Control
* register bits will remain set only if/when link is up.
+ *
+ * EEE LPI must not be asserted earlier than one second after link is up.
+ * On 82579, EEE LPI should not be enabled until such time otherwise there
+ * can be link issues with some switches. Other devices can have EEE LPI
+ * enabled immediately upon link up since they have a timer in hardware which
+ * prevents LPI from being asserted too early.
**/
-STATIC s32 e1000_set_eee_pchlan(struct e1000_hw *hw)
+s32 e1000_set_eee_pchlan(struct e1000_hw *hw)
{
struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
s32 ret_val;
- u16 lpi_ctrl;
+ u16 lpa, pcs_status, adv, adv_addr, lpi_ctrl, data;
DEBUGFUNC("e1000_set_eee_pchlan");
- if ((hw->phy.type != e1000_phy_82579) &&
- (hw->phy.type != e1000_phy_i217))
+ switch (hw->phy.type) {
+ case e1000_phy_82579:
+ lpa = I82579_EEE_LP_ABILITY;
+ pcs_status = I82579_EEE_PCS_STATUS;
+ adv_addr = I82579_EEE_ADVERTISEMENT;
+ break;
+ case e1000_phy_i217:
+ lpa = I217_EEE_LP_ABILITY;
+ pcs_status = I217_EEE_PCS_STATUS;
+ adv_addr = I217_EEE_ADVERTISEMENT;
+ break;
+ default:
return E1000_SUCCESS;
+ }
ret_val = hw->phy.ops.acquire(hw);
if (ret_val)
/* Enable EEE if not disabled by user */
if (!dev_spec->eee_disable) {
- u16 lpa, pcs_status, data;
-
/* Save off link partner's EEE ability */
- switch (hw->phy.type) {
- case e1000_phy_82579:
- lpa = I82579_EEE_LP_ABILITY;
- pcs_status = I82579_EEE_PCS_STATUS;
- break;
- case e1000_phy_i217:
- lpa = I217_EEE_LP_ABILITY;
- pcs_status = I217_EEE_PCS_STATUS;
- break;
- default:
- ret_val = -E1000_ERR_PHY;
- goto release;
- }
ret_val = e1000_read_emi_reg_locked(hw, lpa,
&dev_spec->eee_lp_ability);
if (ret_val)
goto release;
- /*
- * Enable EEE only for speeds in which the link partner is
- * EEE capable.
+ /* Read EEE advertisement */
+ ret_val = e1000_read_emi_reg_locked(hw, adv_addr, &adv);
+ if (ret_val)
+ goto release;
+
+ /* Enable EEE only for speeds in which the link partner is
+ * EEE capable and for which we advertise EEE.
*/
- if (dev_spec->eee_lp_ability & I82579_EEE_1000_SUPPORTED)
+ if (adv & dev_spec->eee_lp_ability & I82579_EEE_1000_SUPPORTED)
lpi_ctrl |= I82579_LPI_CTRL_1000_ENABLE;
- if (dev_spec->eee_lp_ability & I82579_EEE_100_SUPPORTED) {
+ if (adv & dev_spec->eee_lp_ability & I82579_EEE_100_SUPPORTED) {
hw->phy.ops.read_reg_locked(hw, PHY_LP_ABILITY, &data);
if (data & NWAY_LPAR_100TX_FD_CAPS)
lpi_ctrl |= I82579_LPI_CTRL_100_ENABLE;
else
- /*
- * EEE is not supported in 100Half, so ignore
+ /* EEE is not supported in 100Half, so ignore
* partner's EEE in 100 ability if full-duplex
* is not advertised.
*/
dev_spec->eee_lp_ability &=
~I82579_EEE_100_SUPPORTED;
}
+ }
+
+ /* R/Clr IEEE MMD 3.1 bits 11:10 - Tx/Rx LPI Received */
+ ret_val = e1000_read_emi_reg_locked(hw, pcs_status, &data);
+ if (ret_val)
+ goto release;
+
+ ret_val = hw->phy.ops.write_reg_locked(hw, I82579_LPI_CTRL, lpi_ctrl);
+release:
+ hw->phy.ops.release(hw);
+
+ return ret_val;
+}
+
+/**
+ * e1000_k1_workaround_lpt_lp - K1 workaround on Lynxpoint-LP
+ * @hw: pointer to the HW structure
+ * @link: link up bool flag
+ *
+ * When K1 is enabled for 1Gbps, the MAC can miss 2 DMA completion indications
+ * preventing further DMA write requests. Workaround the issue by disabling
+ * the de-assertion of the clock request when in 1Gpbs mode.
+ * Also, set appropriate Tx re-transmission timeouts for 10 and 100Half link
+ * speeds in order to avoid Tx hangs.
+ **/
+static s32 e1000_k1_workaround_lpt_lp(struct e1000_hw *hw, bool link)
+{
+ u32 fextnvm6 = E1000_READ_REG(hw, E1000_FEXTNVM6);
+ u32 status = E1000_READ_REG(hw, E1000_STATUS);
+ s32 ret_val = E1000_SUCCESS;
+ u16 reg;
+
+ if (link && (status & E1000_STATUS_SPEED_1000)) {
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+
+ ret_val =
+ e1000_read_kmrn_reg_locked(hw, E1000_KMRNCTRLSTA_K1_CONFIG,
+ ®);
+ if (ret_val)
+ goto release;
+
+ ret_val =
+ e1000_write_kmrn_reg_locked(hw,
+ E1000_KMRNCTRLSTA_K1_CONFIG,
+ reg &
+ ~E1000_KMRNCTRLSTA_K1_ENABLE);
+ if (ret_val)
+ goto release;
+
+ usec_delay(10);
+
+ E1000_WRITE_REG(hw, E1000_FEXTNVM6,
+ fextnvm6 | E1000_FEXTNVM6_REQ_PLL_CLK);
+
+ ret_val =
+ e1000_write_kmrn_reg_locked(hw,
+ E1000_KMRNCTRLSTA_K1_CONFIG,
+ reg);
+release:
+ hw->phy.ops.release(hw);
+ } else {
+ /* clear FEXTNVM6 bit 8 on link down or 10/100 */
+ fextnvm6 &= ~E1000_FEXTNVM6_REQ_PLL_CLK;
+
+ if (!link || ((status & E1000_STATUS_SPEED_100) &&
+ (status & E1000_STATUS_FD)))
+ goto update_fextnvm6;
+
+ ret_val = hw->phy.ops.read_reg(hw, I217_INBAND_CTRL, ®);
+ if (ret_val)
+ return ret_val;
+
+ /* Clear link status transmit timeout */
+ reg &= ~I217_INBAND_CTRL_LINK_STAT_TX_TIMEOUT_MASK;
+
+ if (status & E1000_STATUS_SPEED_100) {
+ /* Set inband Tx timeout to 5x10us for 100Half */
+ reg |= 5 << I217_INBAND_CTRL_LINK_STAT_TX_TIMEOUT_SHIFT;
+
+ /* Do not extend the K1 entry latency for 100Half */
+ fextnvm6 &= ~E1000_FEXTNVM6_ENABLE_K1_ENTRY_CONDITION;
+ } else {
+ /* Set inband Tx timeout to 50x10us for 10Full/Half */
+ reg |= 50 <<
+ I217_INBAND_CTRL_LINK_STAT_TX_TIMEOUT_SHIFT;
+
+ /* Extend the K1 entry latency for 10 Mbps */
+ fextnvm6 |= E1000_FEXTNVM6_ENABLE_K1_ENTRY_CONDITION;
+ }
+
+ ret_val = hw->phy.ops.write_reg(hw, I217_INBAND_CTRL, reg);
+ if (ret_val)
+ return ret_val;
+
+update_fextnvm6:
+ E1000_WRITE_REG(hw, E1000_FEXTNVM6, fextnvm6);
+ }
+
+ return ret_val;
+}
+
+#ifdef C10_SUPPORT
+/**
+ * e1000_demote_ltr - Demote/Promote the LTR value
+ * @hw: pointer to the HW structure
+ * @demote: boolean value to control whether we are demoting or promoting
+ * the LTR value (promoting allows deeper C-States).
+ * @link: boolean value stating whether we currently have link
+ *
+ * Configure the LTRV register with the proper LTR value
+ **/
+void e1000_demote_ltr(struct e1000_hw *hw, bool demote, bool link)
+{
+ u32 reg = link << (E1000_LTRV_REQ_SHIFT + E1000_LTRV_NOSNOOP_SHIFT) |
+ link << E1000_LTRV_REQ_SHIFT | E1000_LTRV_SEND;
+
+ if ((hw->device_id != E1000_DEV_ID_PCH_I218_LM3) &&
+ (hw->device_id != E1000_DEV_ID_PCH_I218_V3))
+ return;
+
+ if (demote) {
+ reg |= hw->dev_spec.ich8lan.lat_enc |
+ (hw->dev_spec.ich8lan.lat_enc <<
+ E1000_LTRV_NOSNOOP_SHIFT);
+ } else {
+ reg |= hw->dev_spec.ich8lan.max_ltr_enc |
+ (hw->dev_spec.ich8lan.max_ltr_enc <<
+ E1000_LTRV_NOSNOOP_SHIFT);
+ }
+
+ E1000_WRITE_REG(hw, E1000_LTRV, reg);
+ return;
+}
+
+#endif /* C10_SUPPORT */
+#if defined(NAHUM6LP_HW) && defined(ULP_SUPPORT)
+/**
+ * e1000_enable_ulp_lpt_lp - configure Ultra Low Power mode for LynxPoint-LP
+ * @hw: pointer to the HW structure
+ * @to_sx: boolean indicating a system power state transition to Sx
+ *
+ * When link is down, configure ULP mode to significantly reduce the power
+ * to the PHY. If on a Manageability Engine (ME) enabled system, tell the
+ * ME firmware to start the ULP configuration. If not on an ME enabled
+ * system, configure the ULP mode by software.
+ */
+s32 e1000_enable_ulp_lpt_lp(struct e1000_hw *hw, bool to_sx)
+{
+ u32 mac_reg;
+ s32 ret_val = E1000_SUCCESS;
+ u16 phy_reg;
+
+ if ((hw->mac.type < e1000_pch_lpt) ||
+ (hw->device_id == E1000_DEV_ID_PCH_LPT_I217_LM) ||
+ (hw->device_id == E1000_DEV_ID_PCH_LPT_I217_V) ||
+#ifdef NAHUM6_LPTH_I218_HW
+ (hw->device_id == E1000_DEV_ID_PCH_I218_LM2) ||
+ (hw->device_id == E1000_DEV_ID_PCH_I218_V2) ||
+#endif
+ (hw->dev_spec.ich8lan.ulp_state == e1000_ulp_state_on))
+ return 0;
+
+#ifdef ULP_IN_D0_SUPPORT
+ if (!to_sx) {
+ int i = 0;
+
+ /* Poll up to 5 seconds for Cable Disconnected indication */
+ while (!(E1000_READ_REG(hw, E1000_FEXT) &
+ E1000_FEXT_PHY_CABLE_DISCONNECTED)) {
+ /* Bail if link is re-acquired */
+ if (E1000_READ_REG(hw, E1000_STATUS) & E1000_STATUS_LU)
+ return -E1000_ERR_PHY;
+
+ if (i++ == 100)
+ break;
+
+ msec_delay(50);
+ }
+ DEBUGOUT2("CABLE_DISCONNECTED %s set after %dmsec\n",
+ (E1000_READ_REG(hw, E1000_FEXT) &
+ E1000_FEXT_PHY_CABLE_DISCONNECTED) ? "" : "not",
+ i * 50);
+ }
+
+#endif /* ULP_IN_D0_SUPPORT */
+ if (E1000_READ_REG(hw, E1000_FWSM) & E1000_ICH_FWSM_FW_VALID) {
+ /* Request ME configure ULP mode in the PHY */
+ mac_reg = E1000_READ_REG(hw, E1000_H2ME);
+ mac_reg |= E1000_H2ME_ULP | E1000_H2ME_ENFORCE_SETTINGS;
+ E1000_WRITE_REG(hw, E1000_H2ME, mac_reg);
+
+ goto out;
+ }
+
+#ifndef ULP_IN_D0_SUPPORT
+ if (!to_sx) {
+ int i = 0;
+
+ /* Poll up to 5 seconds for Cable Disconnected indication */
+ while (!(E1000_READ_REG(hw, E1000_FEXT) &
+ E1000_FEXT_PHY_CABLE_DISCONNECTED)) {
+ /* Bail if link is re-acquired */
+ if (E1000_READ_REG(hw, E1000_STATUS) & E1000_STATUS_LU)
+ return -E1000_ERR_PHY;
+
+ if (i++ == 100)
+ break;
+
+ msec_delay(50);
+ }
+ DEBUGOUT("CABLE_DISCONNECTED %s set after %dmsec\n",
+ (E1000_READ_REG(hw, E1000_FEXT) &
+ E1000_FEXT_PHY_CABLE_DISCONNECTED) ? "" : "not",
+ i * 50);
+ }
- /* R/Clr IEEE MMD 3.1 bits 11:10 - Tx/Rx LPI Received */
- ret_val = e1000_read_emi_reg_locked(hw, pcs_status, &data);
+#endif /* !ULP_IN_D0_SUPPORT */
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ goto out;
+
+ /* Force SMBus mode in PHY */
+ ret_val = e1000_read_phy_reg_hv_locked(hw, CV_SMB_CTRL, &phy_reg);
+ if (ret_val)
+ goto release;
+ phy_reg |= CV_SMB_CTRL_FORCE_SMBUS;
+ e1000_write_phy_reg_hv_locked(hw, CV_SMB_CTRL, phy_reg);
+
+ /* Force SMBus mode in MAC */
+ mac_reg = E1000_READ_REG(hw, E1000_CTRL_EXT);
+ mac_reg |= E1000_CTRL_EXT_FORCE_SMBUS;
+ E1000_WRITE_REG(hw, E1000_CTRL_EXT, mac_reg);
+
+#ifdef ULP_IN_D0_SUPPORT
+ if (!to_sx) {
+ /* Change the 'Link Status Change' interrupt to trigger
+ * on 'Cable Status Change'
+ */
+ ret_val = e1000_read_kmrn_reg_locked(hw,
+ E1000_KMRNCTRLSTA_OP_MODES,
+ &phy_reg);
if (ret_val)
goto release;
+ phy_reg |= E1000_KMRNCTRLSTA_OP_MODES_LSC2CSC;
+ e1000_write_kmrn_reg_locked(hw, E1000_KMRNCTRLSTA_OP_MODES,
+ phy_reg);
}
- ret_val = hw->phy.ops.write_reg_locked(hw, I82579_LPI_CTRL, lpi_ctrl);
+#endif /* ULP_IN_D0_SUPPORT */
+ /* Set Inband ULP Exit, Reset to SMBus mode and
+ * Disable SMBus Release on PERST# in PHY
+ */
+ ret_val = e1000_read_phy_reg_hv_locked(hw, I218_ULP_CONFIG1, &phy_reg);
+ if (ret_val)
+ goto release;
+ phy_reg |= (I218_ULP_CONFIG1_RESET_TO_SMBUS |
+ I218_ULP_CONFIG1_DISABLE_SMB_PERST);
+ if (to_sx) {
+ if (E1000_READ_REG(hw, E1000_WUFC) & E1000_WUFC_LNKC)
+ phy_reg |= I218_ULP_CONFIG1_WOL_HOST;
+
+ phy_reg |= I218_ULP_CONFIG1_STICKY_ULP;
+ } else {
+ phy_reg |= I218_ULP_CONFIG1_INBAND_EXIT;
+ }
+ e1000_write_phy_reg_hv_locked(hw, I218_ULP_CONFIG1, phy_reg);
+
+ /* Set Disable SMBus Release on PERST# in MAC */
+ mac_reg = E1000_READ_REG(hw, E1000_FEXTNVM7);
+ mac_reg |= E1000_FEXTNVM7_DISABLE_SMB_PERST;
+ E1000_WRITE_REG(hw, E1000_FEXTNVM7, mac_reg);
+
+ /* Commit ULP changes in PHY by starting auto ULP configuration */
+ phy_reg |= I218_ULP_CONFIG1_START;
+ e1000_write_phy_reg_hv_locked(hw, I218_ULP_CONFIG1, phy_reg);
+#ifdef ULP_IN_D0_SUPPORT
+
+ if (!to_sx) {
+ /* Disable Tx so that the MAC doesn't send any (buffered)
+ * packets to the PHY.
+ */
+ mac_reg = E1000_READ_REG(hw, E1000_TCTL);
+ mac_reg &= ~E1000_TCTL_EN;
+ E1000_WRITE_REG(hw, E1000_TCTL, mac_reg);
+ }
+#endif
release:
hw->phy.ops.release(hw);
+out:
+ if (ret_val)
+ DEBUGOUT1("Error in ULP enable flow: %d\n", ret_val);
+ else
+ hw->dev_spec.ich8lan.ulp_state = e1000_ulp_state_on;
return ret_val;
}
+/**
+ * e1000_disable_ulp_lpt_lp - unconfigure Ultra Low Power mode for LynxPoint-LP
+ * @hw: pointer to the HW structure
+ * @force: boolean indicating whether or not to force disabling ULP
+ *
+ * Un-configure ULP mode when link is up, the system is transitioned from
+ * Sx or the driver is unloaded. If on a Manageability Engine (ME) enabled
+ * system, poll for an indication from ME that ULP has been un-configured.
+ * If not on an ME enabled system, un-configure the ULP mode by software.
+ *
+ * During nominal operation, this function is called when link is acquired
+ * to disable ULP mode (force=false); otherwise, for example when unloading
+ * the driver or during Sx->S0 transitions, this is called with force=true
+ * to forcibly disable ULP.
+#ifdef ULP_IN_D0_SUPPORT
+
+ * When the cable is plugged in while the device is in D0, a Cable Status
+ * Change interrupt is generated which causes this function to be called
+ * to partially disable ULP mode and restart autonegotiation. This function
+ * is then called again due to the resulting Link Status Change interrupt
+ * to finish cleaning up after the ULP flow.
+#endif
+ */
+s32 e1000_disable_ulp_lpt_lp(struct e1000_hw *hw, bool force)
+{
+ s32 ret_val = E1000_SUCCESS;
+ u32 mac_reg;
+ u16 phy_reg;
+ int i = 0;
+
+ if ((hw->mac.type < e1000_pch_lpt) ||
+ (hw->device_id == E1000_DEV_ID_PCH_LPT_I217_LM) ||
+ (hw->device_id == E1000_DEV_ID_PCH_LPT_I217_V) ||
+#ifdef NAHUM6_LPTH_I218_HW
+ (hw->device_id == E1000_DEV_ID_PCH_I218_LM2) ||
+ (hw->device_id == E1000_DEV_ID_PCH_I218_V2) ||
+#endif
+ (hw->dev_spec.ich8lan.ulp_state == e1000_ulp_state_off))
+ return 0;
+
+ if (E1000_READ_REG(hw, E1000_FWSM) & E1000_ICH_FWSM_FW_VALID) {
+ if (force) {
+ /* Request ME un-configure ULP mode in the PHY */
+ mac_reg = E1000_READ_REG(hw, E1000_H2ME);
+ mac_reg &= ~E1000_H2ME_ULP;
+ mac_reg |= E1000_H2ME_ENFORCE_SETTINGS;
+ E1000_WRITE_REG(hw, E1000_H2ME, mac_reg);
+ }
+
+ /* Poll up to 100msec for ME to clear ULP_CFG_DONE */
+ while (E1000_READ_REG(hw, E1000_FWSM) &
+ E1000_FWSM_ULP_CFG_DONE) {
+ if (i++ == 10) {
+ ret_val = -E1000_ERR_PHY;
+ goto out;
+ }
+
+ msec_delay(10);
+ }
+ DEBUGOUT1("ULP_CONFIG_DONE cleared after %dmsec\n", i * 10);
+
+ if (force) {
+ mac_reg = E1000_READ_REG(hw, E1000_H2ME);
+ mac_reg &= ~E1000_H2ME_ENFORCE_SETTINGS;
+ E1000_WRITE_REG(hw, E1000_H2ME, mac_reg);
+ } else {
+ /* Clear H2ME.ULP after ME ULP configuration */
+ mac_reg = E1000_READ_REG(hw, E1000_H2ME);
+ mac_reg &= ~E1000_H2ME_ULP;
+ E1000_WRITE_REG(hw, E1000_H2ME, mac_reg);
+#ifdef ULP_IN_D0_SUPPORT
+
+ /* Restore link speed advertisements and restart
+ * Auto-negotiation
+ */
+ ret_val = e1000_phy_setup_autoneg(hw);
+ if (ret_val)
+ goto out;
+
+ ret_val = e1000_oem_bits_config_ich8lan(hw, true);
+#endif
+ }
+
+ goto out;
+ }
+
+ if (force)
+ /* Toggle LANPHYPC Value bit */
+ e1000_toggle_lanphypc_pch_lpt(hw);
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ goto out;
+
+#ifdef ULP_IN_D0_SUPPORT
+ /* Revert the change to the 'Link Status Change'
+ * interrupt to trigger on 'Cable Status Change'
+ */
+ ret_val = e1000_read_kmrn_reg_locked(hw, E1000_KMRNCTRLSTA_OP_MODES,
+ &phy_reg);
+ if (ret_val)
+ goto release;
+ phy_reg &= ~E1000_KMRNCTRLSTA_OP_MODES_LSC2CSC;
+ e1000_write_kmrn_reg_locked(hw, E1000_KMRNCTRLSTA_OP_MODES, phy_reg);
+
+#endif
+ /* Unforce SMBus mode in PHY */
+ ret_val = e1000_read_phy_reg_hv_locked(hw, CV_SMB_CTRL, &phy_reg);
+ if (ret_val) {
+ /* The MAC might be in PCIe mode, so temporarily force to
+ * SMBus mode in order to access the PHY.
+ */
+ mac_reg = E1000_READ_REG(hw, E1000_CTRL_EXT);
+ mac_reg |= E1000_CTRL_EXT_FORCE_SMBUS;
+ E1000_WRITE_REG(hw, E1000_CTRL_EXT, mac_reg);
+
+ msec_delay(50);
+
+ ret_val = e1000_read_phy_reg_hv_locked(hw, CV_SMB_CTRL,
+ &phy_reg);
+ if (ret_val)
+ goto release;
+ }
+ phy_reg &= ~CV_SMB_CTRL_FORCE_SMBUS;
+ e1000_write_phy_reg_hv_locked(hw, CV_SMB_CTRL, phy_reg);
+
+ /* Unforce SMBus mode in MAC */
+ mac_reg = E1000_READ_REG(hw, E1000_CTRL_EXT);
+ mac_reg &= ~E1000_CTRL_EXT_FORCE_SMBUS;
+ E1000_WRITE_REG(hw, E1000_CTRL_EXT, mac_reg);
+
+ /* When ULP mode was previously entered, K1 was disabled by the
+ * hardware. Re-Enable K1 in the PHY when exiting ULP.
+ */
+ ret_val = e1000_read_phy_reg_hv_locked(hw, HV_PM_CTRL, &phy_reg);
+ if (ret_val)
+ goto release;
+ phy_reg |= HV_PM_CTRL_K1_ENABLE;
+ e1000_write_phy_reg_hv_locked(hw, HV_PM_CTRL, phy_reg);
+
+ /* Clear ULP enabled configuration */
+ ret_val = e1000_read_phy_reg_hv_locked(hw, I218_ULP_CONFIG1, &phy_reg);
+ if (ret_val)
+ goto release;
+#ifdef ULP_IN_D0_SUPPORT
+ /* CSC interrupt received due to ULP Indication */
+ if ((phy_reg & I218_ULP_CONFIG1_IND) || force) {
+#endif
+ phy_reg &= ~(I218_ULP_CONFIG1_IND |
+ I218_ULP_CONFIG1_STICKY_ULP |
+ I218_ULP_CONFIG1_RESET_TO_SMBUS |
+ I218_ULP_CONFIG1_WOL_HOST |
+ I218_ULP_CONFIG1_INBAND_EXIT |
+ I218_ULP_CONFIG1_DISABLE_SMB_PERST);
+ e1000_write_phy_reg_hv_locked(hw, I218_ULP_CONFIG1, phy_reg);
+
+ /* Commit ULP changes by starting auto ULP configuration */
+ phy_reg |= I218_ULP_CONFIG1_START;
+ e1000_write_phy_reg_hv_locked(hw, I218_ULP_CONFIG1, phy_reg);
+
+ /* Clear Disable SMBus Release on PERST# in MAC */
+ mac_reg = E1000_READ_REG(hw, E1000_FEXTNVM7);
+ mac_reg &= ~E1000_FEXTNVM7_DISABLE_SMB_PERST;
+ E1000_WRITE_REG(hw, E1000_FEXTNVM7, mac_reg);
+
+#ifdef ULP_IN_D0_SUPPORT
+ if (!force) {
+ hw->phy.ops.release(hw);
+
+ if (hw->mac.autoneg)
+ e1000_phy_setup_autoneg(hw);
+
+ e1000_sw_lcd_config_ich8lan(hw);
+
+ e1000_oem_bits_config_ich8lan(hw, true);
+
+ /* Set ULP state to unknown and return non-zero to
+ * indicate no link (yet) and re-enter on the next LSC
+ * to finish disabling ULP flow.
+ */
+ hw->dev_spec.ich8lan.ulp_state =
+ e1000_ulp_state_unknown;
+
+ return 1;
+ }
+ }
+
+ /* Re-enable Tx */
+ mac_reg = E1000_READ_REG(hw, E1000_TCTL);
+ mac_reg |= E1000_TCTL_EN;
+ E1000_WRITE_REG(hw, E1000_TCTL, mac_reg);
+
+#endif
+release:
+ hw->phy.ops.release(hw);
+ if (force) {
+ hw->phy.ops.reset(hw);
+ msec_delay(50);
+ }
+out:
+ if (ret_val)
+ DEBUGOUT1("Error in ULP disable flow: %d\n", ret_val);
+ else
+ hw->dev_spec.ich8lan.ulp_state = e1000_ulp_state_off;
+
+ return ret_val;
+}
+
+#endif /* NAHUM6LP_HW && ULP_SUPPORT */
/**
* e1000_check_for_copper_link_ich8lan - Check for link (Copper)
* @hw: pointer to the HW structure
{
struct e1000_mac_info *mac = &hw->mac;
s32 ret_val;
+#if defined(NAHUM6LP_HW) && defined(ULP_IN_D0_SUPPORT)
+ bool link = false;
+#else
bool link;
+#endif
u16 phy_reg;
DEBUGFUNC("e1000_check_for_copper_link_ich8lan");
if (!mac->get_link_status)
return E1000_SUCCESS;
- /*
- * First we want to see if the MII Status Register reports
- * link. If so, then we want to get the current speed/duplex
- * of the PHY.
- */
- ret_val = e1000_phy_has_link_generic(hw, 1, 0, &link);
- if (ret_val)
- return ret_val;
+#if defined(NAHUM6LP_HW) && defined(ULP_IN_D0_SUPPORT)
+ if ((hw->mac.type < e1000_pch_lpt) ||
+ (hw->device_id == E1000_DEV_ID_PCH_LPT_I217_LM) ||
+ (hw->device_id == E1000_DEV_ID_PCH_LPT_I217_V)) {
+#endif /* NAHUM6LP_HW && ULP_IN_D0_SUPPORT */
+ /* First we want to see if the MII Status Register reports
+ * link. If so, then we want to get the current speed/duplex
+ * of the PHY.
+ */
+ ret_val = e1000_phy_has_link_generic(hw, 1, 0, &link);
+ if (ret_val)
+ return ret_val;
+#if defined(NAHUM6LP_HW) && defined(ULP_IN_D0_SUPPORT)
+ } else {
+ /* Check the MAC's STATUS register to determine link state
+ * since the PHY could be inaccessible while in ULP mode.
+ */
+ link = !!(E1000_READ_REG(hw, E1000_STATUS) & E1000_STATUS_LU);
+ if (link)
+ ret_val = e1000_disable_ulp_lpt_lp(hw, false);
+ else
+ ret_val = e1000_enable_ulp_lpt_lp(hw, false);
+
+ if (ret_val)
+ return ret_val;
+ }
+#endif /* NAHUM6LP_HW && ULP_IN_D0_SUPPORT */
if (hw->mac.type == e1000_pchlan) {
ret_val = e1000_k1_gig_workaround_hv(hw, link);
return ret_val;
}
+ /* When connected at 10Mbps half-duplex, 82579 parts are excessively
+ * aggressive resulting in many collisions. To avoid this, increase
+ * the IPG and reduce Rx latency in the PHY.
+ */
+ if ((hw->mac.type == e1000_pch2lan) && link) {
+ u32 reg;
+ reg = E1000_READ_REG(hw, E1000_STATUS);
+ if (!(reg & (E1000_STATUS_FD | E1000_STATUS_SPEED_MASK))) {
+ reg = E1000_READ_REG(hw, E1000_TIPG);
+ reg &= ~E1000_TIPG_IPGT_MASK;
+ reg |= 0xFF;
+ E1000_WRITE_REG(hw, E1000_TIPG, reg);
+
+ /* Reduce Rx latency in analog PHY */
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+
+ ret_val = e1000_write_emi_reg_locked(hw, I82579_RX_CONFIG, 0);
+
+ hw->phy.ops.release(hw);
+
+ if (ret_val)
+ return ret_val;
+ }
+ }
+
+#if defined(NAHUM6LP_HW) && defined(NAHUM6_WPT_HW)
+ /* Work-around I218 hang issue */
+ if ((hw->device_id == E1000_DEV_ID_PCH_LPTLP_I218_LM) ||
+ (hw->device_id == E1000_DEV_ID_PCH_LPTLP_I218_V) ||
+ (hw->device_id == E1000_DEV_ID_PCH_I218_LM3) ||
+ (hw->device_id == E1000_DEV_ID_PCH_I218_V3)) {
+ ret_val = e1000_k1_workaround_lpt_lp(hw, link);
+ if (ret_val)
+ return ret_val;
+ }
+#else
+ /* Work-around I218 hang issue */
+ if ((hw->device_id == E1000_DEV_ID_PCH_LPTLP_I218_LM) ||
+ (hw->device_id == E1000_DEV_ID_PCH_LPTLP_I218_V)) {
+ ret_val = e1000_k1_workaround_lpt_lp(hw, link);
+ if (ret_val)
+ return ret_val;
+ }
+
+#endif /* defined(NAHUM6LP_HW) && defined(NAHUM6_WPT_HW) */
/* Clear link partner's EEE ability */
hw->dev_spec.ich8lan.eee_lp_ability = 0;
e1000_check_downshift_generic(hw);
/* Enable/Disable EEE after link up */
- ret_val = e1000_set_eee_pchlan(hw);
- if (ret_val)
- return ret_val;
+ if (hw->phy.type > e1000_phy_82579) {
+ ret_val = e1000_set_eee_pchlan(hw);
+ if (ret_val)
+ return ret_val;
+ }
/* If we are forcing speed/duplex, then we simply return since
* we have already determined whether we have link or not.
break;
case e1000_pchlan:
case e1000_pch2lan:
+ case e1000_pch_lpt:
hw->phy.ops.init_params = e1000_init_phy_params_pchlan;
break;
default:
return;
}
- if (index < hw->mac.rar_entry_count) {
+ /* RAR[1-6] are owned by manageability. Skip those and program the
+ * next address into the SHRA register array.
+ */
+ if (index < (u32) (hw->mac.rar_entry_count - 6)) {
s32 ret_val;
ret_val = e1000_acquire_swflag_ich8lan(hw);
DEBUGOUT1("Failed to write receive address at index %d\n", index);
}
+/**
+ * e1000_rar_set_pch_lpt - Set receive address registers
+ * @hw: pointer to the HW structure
+ * @addr: pointer to the receive address
+ * @index: receive address array register
+ *
+ * Sets the receive address register array at index to the address passed
+ * in by addr. For LPT, RAR[0] is the base address register that is to
+ * contain the MAC address. SHRA[0-10] are the shared receive address
+ * registers that are shared between the Host and manageability engine (ME).
+ **/
+STATIC void e1000_rar_set_pch_lpt(struct e1000_hw *hw, u8 *addr, u32 index)
+{
+ u32 rar_low, rar_high;
+ u32 wlock_mac;
+
+ DEBUGFUNC("e1000_rar_set_pch_lpt");
+
+ /* HW expects these in little endian so we reverse the byte order
+ * from network order (big endian) to little endian
+ */
+ rar_low = ((u32) addr[0] | ((u32) addr[1] << 8) |
+ ((u32) addr[2] << 16) | ((u32) addr[3] << 24));
+
+ rar_high = ((u32) addr[4] | ((u32) addr[5] << 8));
+
+ /* If MAC address zero, no need to set the AV bit */
+ if (rar_low || rar_high)
+ rar_high |= E1000_RAH_AV;
+
+ if (index == 0) {
+ E1000_WRITE_REG(hw, E1000_RAL(index), rar_low);
+ E1000_WRITE_FLUSH(hw);
+ E1000_WRITE_REG(hw, E1000_RAH(index), rar_high);
+ E1000_WRITE_FLUSH(hw);
+ return;
+ }
+
+ /* The manageability engine (ME) can lock certain SHRAR registers that
+ * it is using - those registers are unavailable for use.
+ */
+ if (index < hw->mac.rar_entry_count) {
+ wlock_mac = E1000_READ_REG(hw, E1000_FWSM) &
+ E1000_FWSM_WLOCK_MAC_MASK;
+ wlock_mac >>= E1000_FWSM_WLOCK_MAC_SHIFT;
+
+ /* Check if all SHRAR registers are locked */
+ if (wlock_mac == 1)
+ goto out;
+
+ if ((wlock_mac == 0) || (index <= wlock_mac)) {
+ s32 ret_val;
+
+ ret_val = e1000_acquire_swflag_ich8lan(hw);
+
+ if (ret_val)
+ goto out;
+
+ E1000_WRITE_REG(hw, E1000_SHRAL_PCH_LPT(index - 1),
+ rar_low);
+ E1000_WRITE_FLUSH(hw);
+ E1000_WRITE_REG(hw, E1000_SHRAH_PCH_LPT(index - 1),
+ rar_high);
+ E1000_WRITE_FLUSH(hw);
+
+ e1000_release_swflag_ich8lan(hw);
+
+ /* verify the register updates */
+ if ((E1000_READ_REG(hw, E1000_SHRAL_PCH_LPT(index - 1)) == rar_low) &&
+ (E1000_READ_REG(hw, E1000_SHRAH_PCH_LPT(index - 1)) == rar_high))
+ return;
+ }
+ }
+
+out:
+ DEBUGOUT1("Failed to write receive address at index %d\n", index);
+}
+
+#ifndef NO_NON_BLOCKING_PHY_MTA_UPDATE_SUPPORT
+/**
+ * e1000_update_mc_addr_list_pch2lan - Update Multicast addresses
+ * @hw: pointer to the HW structure
+ * @mc_addr_list: array of multicast addresses to program
+ * @mc_addr_count: number of multicast addresses to program
+ *
+ * Updates entire Multicast Table Array of the PCH2 MAC and PHY.
+ * The caller must have a packed mc_addr_list of multicast addresses.
+ **/
+STATIC void e1000_update_mc_addr_list_pch2lan(struct e1000_hw *hw,
+ u8 *mc_addr_list,
+ u32 mc_addr_count)
+{
+ u16 phy_reg = 0;
+ int i;
+ s32 ret_val;
+
+ DEBUGFUNC("e1000_update_mc_addr_list_pch2lan");
+
+ e1000_update_mc_addr_list_generic(hw, mc_addr_list, mc_addr_count);
+
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return;
+
+ ret_val = e1000_enable_phy_wakeup_reg_access_bm(hw, &phy_reg);
+ if (ret_val)
+ goto release;
+
+ for (i = 0; i < hw->mac.mta_reg_count; i++) {
+ hw->phy.ops.write_reg_page(hw, BM_MTA(i),
+ (u16)(hw->mac.mta_shadow[i] &
+ 0xFFFF));
+ hw->phy.ops.write_reg_page(hw, (BM_MTA(i) + 1),
+ (u16)((hw->mac.mta_shadow[i] >> 16) &
+ 0xFFFF));
+ }
+
+ e1000_disable_phy_wakeup_reg_access_bm(hw, &phy_reg);
+
+release:
+ hw->phy.ops.release(hw);
+}
+
+#endif /* NO_NON_BLOCKING_PHY_MTA_UPDATE_SUPPORT */
/**
* e1000_check_reset_block_ich8lan - Check if PHY reset is blocked
* @hw: pointer to the HW structure
STATIC s32 e1000_check_reset_block_ich8lan(struct e1000_hw *hw)
{
u32 fwsm;
+ bool blocked = false;
+ int i = 0;
DEBUGFUNC("e1000_check_reset_block_ich8lan");
- fwsm = E1000_READ_REG(hw, E1000_FWSM);
-
- return (fwsm & E1000_ICH_FWSM_RSPCIPHY) ? E1000_SUCCESS
- : E1000_BLK_PHY_RESET;
+ do {
+ fwsm = E1000_READ_REG(hw, E1000_FWSM);
+ if (!(fwsm & E1000_ICH_FWSM_RSPCIPHY)) {
+ blocked = true;
+ msec_delay(10);
+ continue;
+ }
+ blocked = false;
+ } while (blocked && (i++ < 10));
+ return blocked ? E1000_BLK_PHY_RESET : E1000_SUCCESS;
}
/**
/* Fall-thru */
case e1000_pchlan:
case e1000_pch2lan:
+ case e1000_pch_lpt:
sw_cfg_mask = E1000_FEXTNVM_SW_CONFIG_ICH8M;
break;
default:
if (ret_val)
goto release;
- /* Copy both RAL/H (rar_entry_count) and SHRAL/H (+4) to PHY */
- for (i = 0; i < (hw->mac.rar_entry_count + 4); i++) {
+ /* Copy both RAL/H (rar_entry_count) and SHRAL/H to PHY */
+ for (i = 0; i < (hw->mac.rar_entry_count); i++) {
mac_reg = E1000_READ_REG(hw, E1000_RAL(i));
hw->phy.ops.write_reg_page(hw, BM_RAR_L(i),
(u16)(mac_reg & 0xFFFF));
hw->phy.ops.release(hw);
}
+#ifndef CRC32_OS_SUPPORT
static u32 e1000_calc_rx_da_crc(u8 mac[])
{
u32 poly = 0xEDB88320; /* Polynomial for 802.3 CRC calculation */
return ~crc;
}
+#endif /* CRC32_OS_SUPPORT */
/**
* e1000_lv_jumbo_workaround_ich8lan - required for jumbo frame operation
* with 82579 PHY
DEBUGFUNC("e1000_lv_jumbo_workaround_ich8lan");
- if (hw->mac.type != e1000_pch2lan)
+ if (hw->mac.type < e1000_pch2lan)
return E1000_SUCCESS;
/* disable Rx path while enabling/disabling workaround */
/* Write Rx addresses (rar_entry_count for RAL/H, and
* SHRAL/H) and initial CRC values to the MAC
*/
- for (i = 0; i < (hw->mac.rar_entry_count + 4); i++) {
+ for (i = 0; i < hw->mac.rar_entry_count; i++) {
u8 mac_addr[ETH_ADDR_LEN] = {0};
u32 addr_high, addr_low;
mac_addr[4] = (addr_high & 0xFF);
mac_addr[5] = ((addr_high >> 8) & 0xFF);
+#ifndef CRC32_OS_SUPPORT
E1000_WRITE_REG(hw, E1000_PCH_RAICC(i),
e1000_calc_rx_da_crc(mac_addr));
+#else /* CRC32_OS_SUPPORT */
+ E1000_WRITE_REG(hw, E1000_PCH_RAICC(i),
+ E1000_CRC32(ETH_ADDR_LEN, mac_addr));
+#endif /* CRC32_OS_SUPPORT */
}
/* Write Rx addresses to the PHY */
DEBUGFUNC("e1000_gate_hw_phy_config_ich8lan");
- if (hw->mac.type != e1000_pch2lan)
+ if (hw->mac.type < e1000_pch2lan)
return;
extcnf_ctrl = E1000_READ_REG(hw, E1000_EXTCNF_CTRL);
ret_val = phy->ops.read_reg(hw,
IGP01E1000_PHY_PORT_CONFIG,
&data);
+ if (ret_val)
+ return ret_val;
data &= ~IGP01E1000_PSCFR_SMART_SPEED;
ret_val = phy->ops.write_reg(hw,
IGP01E1000_PHY_PORT_CONFIG,
* the checksum...a likely scenario.
*/
switch (hw->mac.type) {
+ case e1000_pch_lpt:
+ word = NVM_COMPAT;
+ valid_csum_mask = NVM_COMPAT_VALID_CSUM;
+ break;
default:
word = NVM_FUTURE_INIT_WORD1;
valid_csum_mask = NVM_FUTURE_INIT_WORD1_VALID_CSUM;
reg |= (E1000_RFCTL_IPV6_EX_DIS | E1000_RFCTL_NEW_IPV6_EXT_DIS);
E1000_WRITE_REG(hw, E1000_RFCTL, reg);
+ /* Enable ECC on Lynxpoint */
+ if (hw->mac.type == e1000_pch_lpt) {
+ reg = E1000_READ_REG(hw, E1000_PBECCSTS);
+ reg |= E1000_PBECCSTS_ECC_ENABLE;
+ E1000_WRITE_REG(hw, E1000_PBECCSTS, reg);
+
+ reg = E1000_READ_REG(hw, E1000_CTRL);
+ reg |= E1000_CTRL_MEHE;
+ E1000_WRITE_REG(hw, E1000_CTRL, reg);
+ }
+
return;
}
break;
case e1000_phy_82577:
case e1000_phy_82579:
- case e1000_phy_i217:
ret_val = e1000_copper_link_setup_82577(hw);
if (ret_val)
return ret_val;
return e1000_setup_copper_link_generic(hw);
}
+/**
+ * e1000_setup_copper_link_pch_lpt - Configure MAC/PHY interface
+ * @hw: pointer to the HW structure
+ *
+ * Calls the PHY specific link setup function and then calls the
+ * generic setup_copper_link to finish configuring the link for
+ * Lynxpoint PCH devices
+ **/
+STATIC s32 e1000_setup_copper_link_pch_lpt(struct e1000_hw *hw)
+{
+ u32 ctrl;
+ s32 ret_val;
+
+ DEBUGFUNC("e1000_setup_copper_link_pch_lpt");
+
+ ctrl = E1000_READ_REG(hw, E1000_CTRL);
+ ctrl |= E1000_CTRL_SLU;
+ ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
+ E1000_WRITE_REG(hw, E1000_CTRL, ctrl);
+
+ ret_val = e1000_copper_link_setup_82577(hw);
+ if (ret_val)
+ return ret_val;
+
+ return e1000_setup_copper_link_generic(hw);
+}
+
/**
* e1000_get_link_up_info_ich8lan - Get current link speed and duplex
* @hw: pointer to the HW structure
if (ret_val)
return;
reg_data &= ~E1000_KMRNCTRLSTA_DIAG_NELPBK;
- ret_val = e1000_write_kmrn_reg_generic(hw,
- E1000_KMRNCTRLSTA_DIAG_OFFSET,
- reg_data);
+ e1000_write_kmrn_reg_generic(hw, E1000_KMRNCTRLSTA_DIAG_OFFSET,
+ reg_data);
}
/**
phy_ctrl |= E1000_PHY_CTRL_GBE_DISABLE;
if (hw->phy.type == e1000_phy_i217) {
- u16 phy_reg;
+ u16 phy_reg, device_id = hw->device_id;
+
+#ifdef NAHUM6_WPT_HW
+ if ((device_id == E1000_DEV_ID_PCH_LPTLP_I218_LM) ||
+ (device_id == E1000_DEV_ID_PCH_LPTLP_I218_V) ||
+ (device_id == E1000_DEV_ID_PCH_I218_LM3) ||
+ (device_id == E1000_DEV_ID_PCH_I218_V3)) {
+ u32 fextnvm6 = E1000_READ_REG(hw, E1000_FEXTNVM6);
+
+ E1000_WRITE_REG(hw, E1000_FEXTNVM6,
+ fextnvm6 & ~E1000_FEXTNVM6_REQ_PLL_CLK);
+ }
+#else
+ if ((device_id == E1000_DEV_ID_PCH_LPTLP_I218_LM) ||
+ (device_id == E1000_DEV_ID_PCH_LPTLP_I218_V)) {
+ u32 fextnvm6 = E1000_READ_REG(hw, E1000_FEXTNVM6);
+
+ E1000_WRITE_REG(hw, E1000_FEXTNVM6,
+ fextnvm6 & ~E1000_FEXTNVM6_REQ_PLL_CLK);
+ }
+#endif
ret_val = hw->phy.ops.acquire(hw);
if (ret_val)
/* Disable LPLU if both link partners support 100BaseT
* EEE and 100Full is advertised on both ends of the
- * link.
+ * link, and enable Auto Enable LPI since there will
+ * be no driver to enable LPI while in Sx.
*/
if ((eee_advert & I82579_EEE_100_SUPPORTED) &&
(dev_spec->eee_lp_ability &
I82579_EEE_100_SUPPORTED) &&
- (hw->phy.autoneg_advertised & ADVERTISE_100_FULL))
+ (hw->phy.autoneg_advertised & ADVERTISE_100_FULL)) {
phy_ctrl &= ~(E1000_PHY_CTRL_D0A_LPLU |
E1000_PHY_CTRL_NOND0A_LPLU);
+
+ /* Set Auto Enable LPI after link up */
+ hw->phy.ops.read_reg_locked(hw,
+ I217_LPI_GPIO_CTRL,
+ &phy_reg);
+ phy_reg |= I217_LPI_GPIO_CTRL_AUTO_EN_LPI;
+ hw->phy.ops.write_reg_locked(hw,
+ I217_LPI_GPIO_CTRL,
+ phy_reg);
+ }
}
/* For i217 Intel Rapid Start Technology support,
return;
}
+ /* Clear Auto Enable LPI after link up */
+ hw->phy.ops.read_reg_locked(hw, I217_LPI_GPIO_CTRL, &phy_reg);
+ phy_reg &= ~I217_LPI_GPIO_CTRL_AUTO_EN_LPI;
+ hw->phy.ops.write_reg_locked(hw, I217_LPI_GPIO_CTRL, phy_reg);
+
if (!(E1000_READ_REG(hw, E1000_FWSM) &
E1000_ICH_FWSM_FW_VALID)) {
/* Restore clear on SMB if no manageability engine
git.droids-corp.org / dpdk.git / blobdiff