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authorBruce Allan <bruce.w.allan@intel.com>2008-11-21 19:57:36 -0500
committerDavid S. Miller <davem@davemloft.net>2008-11-21 19:57:36 -0500
commit5c48ef3e2028677a890d46d9a38b19174274f2e9 (patch)
tree1ef4a75e9054eafa127609bd31f7999dc1fe085f /drivers/net/e1000e/lib.c
parent8f12fe8653eb699a6bc4f88f1a80312466ea2b0e (diff)
e1000e: sync change flow control variables with ixgbe
Sync flow control variables and usage model with that found in the ixgbe driver. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/e1000e/lib.c')
-rw-r--r--drivers/net/e1000e/lib.c46
1 files changed, 23 insertions, 23 deletions
diff --git a/drivers/net/e1000e/lib.c b/drivers/net/e1000e/lib.c
index 37753d13cd22..66741104ffd1 100644
--- a/drivers/net/e1000e/lib.c
+++ b/drivers/net/e1000e/lib.c
@@ -645,12 +645,12 @@ static s32 e1000_set_default_fc_generic(struct e1000_hw *hw)
645 } 645 }
646 646
647 if ((nvm_data & NVM_WORD0F_PAUSE_MASK) == 0) 647 if ((nvm_data & NVM_WORD0F_PAUSE_MASK) == 0)
648 hw->fc.type = e1000_fc_none; 648 hw->fc.requested_mode = e1000_fc_none;
649 else if ((nvm_data & NVM_WORD0F_PAUSE_MASK) == 649 else if ((nvm_data & NVM_WORD0F_PAUSE_MASK) ==
650 NVM_WORD0F_ASM_DIR) 650 NVM_WORD0F_ASM_DIR)
651 hw->fc.type = e1000_fc_tx_pause; 651 hw->fc.requested_mode = e1000_fc_tx_pause;
652 else 652 else
653 hw->fc.type = e1000_fc_full; 653 hw->fc.requested_mode = e1000_fc_full;
654 654
655 return 0; 655 return 0;
656} 656}
@@ -678,23 +678,23 @@ s32 e1000e_setup_link(struct e1000_hw *hw)
678 return 0; 678 return 0;
679 679
680 /* 680 /*
681 * If flow control is set to default, set flow control based on 681 * If requested flow control is set to default, set flow control
682 * the EEPROM flow control settings. 682 * based on the EEPROM flow control settings.
683 */ 683 */
684 if (hw->fc.type == e1000_fc_default) { 684 if (hw->fc.requested_mode == e1000_fc_default) {
685 ret_val = e1000_set_default_fc_generic(hw); 685 ret_val = e1000_set_default_fc_generic(hw);
686 if (ret_val) 686 if (ret_val)
687 return ret_val; 687 return ret_val;
688 } 688 }
689 689
690 /* 690 /*
691 * We want to save off the original Flow Control configuration just 691 * Save off the requested flow control mode for use later. Depending
692 * in case we get disconnected and then reconnected into a different 692 * on the link partner's capabilities, we may or may not use this mode.
693 * hub or switch with different Flow Control capabilities.
694 */ 693 */
695 hw->fc.original_type = hw->fc.type; 694 hw->fc.current_mode = hw->fc.requested_mode;
696 695
697 hw_dbg(hw, "After fix-ups FlowControl is now = %x\n", hw->fc.type); 696 hw_dbg(hw, "After fix-ups FlowControl is now = %x\n",
697 hw->fc.current_mode);
698 698
699 /* Call the necessary media_type subroutine to configure the link. */ 699 /* Call the necessary media_type subroutine to configure the link. */
700 ret_val = mac->ops.setup_physical_interface(hw); 700 ret_val = mac->ops.setup_physical_interface(hw);
@@ -746,7 +746,7 @@ static s32 e1000_commit_fc_settings_generic(struct e1000_hw *hw)
746 * do not support receiving pause frames). 746 * do not support receiving pause frames).
747 * 3: Both Rx and Tx flow control (symmetric) are enabled. 747 * 3: Both Rx and Tx flow control (symmetric) are enabled.
748 */ 748 */
749 switch (hw->fc.type) { 749 switch (hw->fc.current_mode) {
750 case e1000_fc_none: 750 case e1000_fc_none:
751 /* Flow control completely disabled by a software over-ride. */ 751 /* Flow control completely disabled by a software over-ride. */
752 txcw = (E1000_TXCW_ANE | E1000_TXCW_FD); 752 txcw = (E1000_TXCW_ANE | E1000_TXCW_FD);
@@ -928,7 +928,7 @@ s32 e1000e_set_fc_watermarks(struct e1000_hw *hw)
928 * ability to transmit pause frames is not enabled, then these 928 * ability to transmit pause frames is not enabled, then these
929 * registers will be set to 0. 929 * registers will be set to 0.
930 */ 930 */
931 if (hw->fc.type & e1000_fc_tx_pause) { 931 if (hw->fc.current_mode & e1000_fc_tx_pause) {
932 /* 932 /*
933 * We need to set up the Receive Threshold high and low water 933 * We need to set up the Receive Threshold high and low water
934 * marks as well as (optionally) enabling the transmission of 934 * marks as well as (optionally) enabling the transmission of
@@ -967,7 +967,7 @@ s32 e1000e_force_mac_fc(struct e1000_hw *hw)
967 * receive flow control. 967 * receive flow control.
968 * 968 *
969 * The "Case" statement below enables/disable flow control 969 * The "Case" statement below enables/disable flow control
970 * according to the "hw->fc.type" parameter. 970 * according to the "hw->fc.current_mode" parameter.
971 * 971 *
972 * The possible values of the "fc" parameter are: 972 * The possible values of the "fc" parameter are:
973 * 0: Flow control is completely disabled 973 * 0: Flow control is completely disabled
@@ -978,9 +978,9 @@ s32 e1000e_force_mac_fc(struct e1000_hw *hw)
978 * 3: Both Rx and Tx flow control (symmetric) is enabled. 978 * 3: Both Rx and Tx flow control (symmetric) is enabled.
979 * other: No other values should be possible at this point. 979 * other: No other values should be possible at this point.
980 */ 980 */
981 hw_dbg(hw, "hw->fc.type = %u\n", hw->fc.type); 981 hw_dbg(hw, "hw->fc.current_mode = %u\n", hw->fc.current_mode);
982 982
983 switch (hw->fc.type) { 983 switch (hw->fc.current_mode) {
984 case e1000_fc_none: 984 case e1000_fc_none:
985 ctrl &= (~(E1000_CTRL_TFCE | E1000_CTRL_RFCE)); 985 ctrl &= (~(E1000_CTRL_TFCE | E1000_CTRL_RFCE));
986 break; 986 break;
@@ -1124,11 +1124,11 @@ s32 e1000e_config_fc_after_link_up(struct e1000_hw *hw)
1124 * ONLY. Hence, we must now check to see if we need to 1124 * ONLY. Hence, we must now check to see if we need to
1125 * turn OFF the TRANSMISSION of PAUSE frames. 1125 * turn OFF the TRANSMISSION of PAUSE frames.
1126 */ 1126 */
1127 if (hw->fc.original_type == e1000_fc_full) { 1127 if (hw->fc.requested_mode == e1000_fc_full) {
1128 hw->fc.type = e1000_fc_full; 1128 hw->fc.current_mode = e1000_fc_full;
1129 hw_dbg(hw, "Flow Control = FULL.\r\n"); 1129 hw_dbg(hw, "Flow Control = FULL.\r\n");
1130 } else { 1130 } else {
1131 hw->fc.type = e1000_fc_rx_pause; 1131 hw->fc.current_mode = e1000_fc_rx_pause;
1132 hw_dbg(hw, "Flow Control = " 1132 hw_dbg(hw, "Flow Control = "
1133 "RX PAUSE frames only.\r\n"); 1133 "RX PAUSE frames only.\r\n");
1134 } 1134 }
@@ -1146,7 +1146,7 @@ s32 e1000e_config_fc_after_link_up(struct e1000_hw *hw)
1146 (mii_nway_adv_reg & NWAY_AR_ASM_DIR) && 1146 (mii_nway_adv_reg & NWAY_AR_ASM_DIR) &&
1147 (mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) && 1147 (mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) &&
1148 (mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR)) { 1148 (mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR)) {
1149 hw->fc.type = e1000_fc_tx_pause; 1149 hw->fc.current_mode = e1000_fc_tx_pause;
1150 hw_dbg(hw, "Flow Control = Tx PAUSE frames only.\r\n"); 1150 hw_dbg(hw, "Flow Control = Tx PAUSE frames only.\r\n");
1151 } 1151 }
1152 /* 1152 /*
@@ -1162,14 +1162,14 @@ s32 e1000e_config_fc_after_link_up(struct e1000_hw *hw)
1162 (mii_nway_adv_reg & NWAY_AR_ASM_DIR) && 1162 (mii_nway_adv_reg & NWAY_AR_ASM_DIR) &&
1163 !(mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) && 1163 !(mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) &&
1164 (mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR)) { 1164 (mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR)) {
1165 hw->fc.type = e1000_fc_rx_pause; 1165 hw->fc.current_mode = e1000_fc_rx_pause;
1166 hw_dbg(hw, "Flow Control = Rx PAUSE frames only.\r\n"); 1166 hw_dbg(hw, "Flow Control = Rx PAUSE frames only.\r\n");
1167 } else { 1167 } else {
1168 /* 1168 /*
1169 * Per the IEEE spec, at this point flow control 1169 * Per the IEEE spec, at this point flow control
1170 * should be disabled. 1170 * should be disabled.
1171 */ 1171 */
1172 hw->fc.type = e1000_fc_none; 1172 hw->fc.current_mode = e1000_fc_none;
1173 hw_dbg(hw, "Flow Control = NONE.\r\n"); 1173 hw_dbg(hw, "Flow Control = NONE.\r\n");
1174 } 1174 }
1175 1175
@@ -1185,7 +1185,7 @@ s32 e1000e_config_fc_after_link_up(struct e1000_hw *hw)
1185 } 1185 }
1186 1186
1187 if (duplex == HALF_DUPLEX) 1187 if (duplex == HALF_DUPLEX)
1188 hw->fc.type = e1000_fc_none; 1188 hw->fc.current_mode = e1000_fc_none;
1189 1189
1190 /* 1190 /*
1191 * Now we call a subroutine to actually force the MAC 1191 * Now we call a subroutine to actually force the MAC