/* Intel PRO/1000 Linux driver
- * Copyright(c) 1999 - 2014 Intel Corporation.
+ * Copyright(c) 1999 - 2015 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
if (ret_val)
return false;
out:
- if ((hw->mac.type == e1000_pch_lpt) ||
- (hw->mac.type == e1000_pch_spt)) {
- /* Unforce SMBus mode in PHY */
- e1e_rphy_locked(hw, CV_SMB_CTRL, &phy_reg);
- phy_reg &= ~CV_SMB_CTRL_FORCE_SMBUS;
- e1e_wphy_locked(hw, CV_SMB_CTRL, phy_reg);
+ if ((hw->mac.type == e1000_pch_lpt) || (hw->mac.type == e1000_pch_spt)) {
+ /* Only unforce SMBus if ME is not active */
+ if (!(er32(FWSM) & E1000_ICH_FWSM_FW_VALID)) {
+ /* Unforce SMBus mode in PHY */
+ e1e_rphy_locked(hw, CV_SMB_CTRL, &phy_reg);
+ phy_reg &= ~CV_SMB_CTRL_FORCE_SMBUS;
+ e1e_wphy_locked(hw, CV_SMB_CTRL, phy_reg);
- /* Unforce SMBus mode in MAC */
- mac_reg = er32(CTRL_EXT);
- mac_reg &= ~E1000_CTRL_EXT_FORCE_SMBUS;
- ew32(CTRL_EXT, mac_reg);
+ /* Unforce SMBus mode in MAC */
+ mac_reg = er32(CTRL_EXT);
+ mac_reg &= ~E1000_CTRL_EXT_FORCE_SMBUS;
+ ew32(CTRL_EXT, mac_reg);
+ }
}
return true;
u16 speed, duplex, scale = 0;
u16 max_snoop, max_nosnoop;
u16 max_ltr_enc; /* max LTR latency encoded */
- s64 lat_ns; /* latency (ns) */
- s64 value;
+ u64 value;
u32 rxa;
if (!hw->adapter->max_frame_size) {
* 2^25*(2^10-1) ns. The scale is encoded as 0=2^0ns,
* 1=2^5ns, 2=2^10ns,...5=2^25ns.
*/
- lat_ns = ((s64)rxa * 1024 -
- (2 * (s64)hw->adapter->max_frame_size)) * 8 * 1000;
- if (lat_ns < 0)
- lat_ns = 0;
- else
- do_div(lat_ns, speed);
+ rxa *= 512;
+ value = (rxa > hw->adapter->max_frame_size) ?
+ (rxa - hw->adapter->max_frame_size) * (16000 / speed) :
+ 0;
- value = lat_ns;
while (value > PCI_LTR_VALUE_MASK) {
scale++;
value = DIV_ROUND_UP(value, (1 << 5));
u32 mac_reg;
s32 ret_val = 0;
u16 phy_reg;
+ u16 oem_reg = 0;
if ((hw->mac.type < e1000_pch_lpt) ||
(hw->adapter->pdev->device == E1000_DEV_ID_PCH_LPT_I217_LM) ||
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 = er32(CTRL_EXT);
+ mac_reg |= E1000_CTRL_EXT_FORCE_SMBUS;
+ ew32(CTRL_EXT, mac_reg);
+
/* Si workaround for ULP entry flow on i127/rev6 h/w. Enable
* LPLU and disable Gig speed when entering ULP
*/
if ((hw->phy.type == e1000_phy_i217) && (hw->phy.revision == 6)) {
ret_val = e1000_read_phy_reg_hv_locked(hw, HV_OEM_BITS,
- &phy_reg);
+ &oem_reg);
if (ret_val)
goto release;
+
+ phy_reg = oem_reg;
phy_reg |= HV_OEM_BITS_LPLU | HV_OEM_BITS_GBE_DIS;
+
ret_val = e1000_write_phy_reg_hv_locked(hw, HV_OEM_BITS,
phy_reg);
+
if (ret_val)
goto release;
}
- /* 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 = er32(CTRL_EXT);
- mac_reg |= E1000_CTRL_EXT_FORCE_SMBUS;
- ew32(CTRL_EXT, mac_reg);
-
/* Set Inband ULP Exit, Reset to SMBus mode and
* Disable SMBus Release on PERST# in PHY
*/
if (to_sx) {
if (er32(WUFC) & E1000_WUFC_LNKC)
phy_reg |= I218_ULP_CONFIG1_WOL_HOST;
+ else
+ phy_reg &= ~I218_ULP_CONFIG1_WOL_HOST;
phy_reg |= I218_ULP_CONFIG1_STICKY_ULP;
+ phy_reg &= ~I218_ULP_CONFIG1_INBAND_EXIT;
} else {
phy_reg |= I218_ULP_CONFIG1_INBAND_EXIT;
+ phy_reg &= ~I218_ULP_CONFIG1_STICKY_ULP;
+ phy_reg &= ~I218_ULP_CONFIG1_WOL_HOST;
}
e1000_write_phy_reg_hv_locked(hw, I218_ULP_CONFIG1, phy_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);
+
+ if ((hw->phy.type == e1000_phy_i217) && (hw->phy.revision == 6) &&
+ to_sx && (er32(STATUS) & E1000_STATUS_LU)) {
+ ret_val = e1000_write_phy_reg_hv_locked(hw, HV_OEM_BITS,
+ oem_reg);
+ if (ret_val)
+ goto release;
+ }
+
release:
hw->phy.ops.release(hw);
out:
if (((hw->mac.type == e1000_pch2lan) ||
(hw->mac.type == e1000_pch_lpt) ||
(hw->mac.type == e1000_pch_spt)) && link) {
- u32 reg;
+ u16 speed, duplex;
- reg = er32(STATUS);
+ e1000e_get_speed_and_duplex_copper(hw, &speed, &duplex);
tipg_reg = er32(TIPG);
tipg_reg &= ~E1000_TIPG_IPGT_MASK;
- if (!(reg & (E1000_STATUS_FD | E1000_STATUS_SPEED_MASK))) {
+ if (duplex == HALF_DUPLEX && speed == SPEED_10) {
tipg_reg |= 0xFF;
/* Reduce Rx latency in analog PHY */
emi_val = 0;
+ } else if (hw->mac.type == e1000_pch_spt &&
+ duplex == FULL_DUPLEX && speed != SPEED_1000) {
+ tipg_reg |= 0xC;
+ emi_val = 1;
} else {
/* Roll back the default values */
if (ret_val)
return ret_val;
+
+ if (hw->mac.type == e1000_pch_spt) {
+ u16 data;
+ u16 ptr_gap;
+
+ if (speed == SPEED_1000) {
+ ret_val = hw->phy.ops.acquire(hw);
+ if (ret_val)
+ return ret_val;
+
+ ret_val = e1e_rphy_locked(hw,
+ PHY_REG(776, 20),
+ &data);
+ if (ret_val) {
+ hw->phy.ops.release(hw);
+ return ret_val;
+ }
+
+ ptr_gap = (data & (0x3FF << 2)) >> 2;
+ if (ptr_gap < 0x18) {
+ data &= ~(0x3FF << 2);
+ data |= (0x18 << 2);
+ ret_val =
+ e1e_wphy_locked(hw,
+ PHY_REG(776, 20),
+ data);
+ }
+ hw->phy.ops.release(hw);
+ if (ret_val)
+ return ret_val;
+ }
+ }
+ }
+
+ /* I217 Packet Loss issue:
+ * ensure that FEXTNVM4 Beacon Duration is set correctly
+ * on power up.
+ * Set the Beacon Duration for I217 to 8 usec
+ */
+ if ((hw->mac.type == e1000_pch_lpt) || (hw->mac.type == e1000_pch_spt)) {
+ u32 mac_reg;
+
+ mac_reg = er32(FEXTNVM4);
+ mac_reg &= ~E1000_FEXTNVM4_BEACON_DURATION_MASK;
+ mac_reg |= E1000_FEXTNVM4_BEACON_DURATION_8USEC;
+ ew32(FEXTNVM4, mac_reg);
}
/* Work-around I218 hang issue */
if ((hw->adapter->pdev->device == E1000_DEV_ID_PCH_LPTLP_I218_LM) ||
(hw->adapter->pdev->device == E1000_DEV_ID_PCH_LPTLP_I218_V) ||
(hw->adapter->pdev->device == E1000_DEV_ID_PCH_I218_LM3) ||
- (hw->adapter->pdev->device == E1000_DEV_ID_PCH_I218_V3) ||
- (hw->mac.type == e1000_pch_spt)) {
+ (hw->adapter->pdev->device == E1000_DEV_ID_PCH_I218_V3)) {
ret_val = e1000_k1_workaround_lpt_lp(hw, link);
if (ret_val)
return ret_val;
Code Review / kvmfornfv.git / blobdiff