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Message-ID: <20081121190146.32313.62142.stgit@gitlost.lost>
Date: Fri, 21 Nov 2008 11:01:46 -0800
From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, jeff@...zik.org,
Bruce Allan <bruce.w.allan@...el.com>,
Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [NET-NEXT PATCH 10/14] e1000e: sync change flow control variables
with ixgbe
From: Bruce Allan <bruce.w.allan@...el.com>
Sync flow control variables and usage model with that found in the ixgbe
driver.
Signed-off-by: Bruce Allan <bruce.w.allan@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
drivers/net/e1000e/82571.c | 4 ++--
drivers/net/e1000e/ethtool.c | 32 +++++++++++++++--------------
drivers/net/e1000e/hw.h | 6 +++--
drivers/net/e1000e/ich8lan.c | 13 ++++++++----
drivers/net/e1000e/lib.c | 46 +++++++++++++++++++++---------------------
drivers/net/e1000e/netdev.c | 6 +++--
drivers/net/e1000e/phy.c | 4 ++--
7 files changed, 58 insertions(+), 53 deletions(-)
diff --git a/drivers/net/e1000e/82571.c b/drivers/net/e1000e/82571.c
index 11e72b6..60c15cb 100644
--- a/drivers/net/e1000e/82571.c
+++ b/drivers/net/e1000e/82571.c
@@ -1118,8 +1118,8 @@ static s32 e1000_setup_link_82571(struct e1000_hw *hw)
* set it to full.
*/
if ((hw->mac.type == e1000_82573 || hw->mac.type == e1000_82574) &&
- hw->fc.type == e1000_fc_default)
- hw->fc.type = e1000_fc_full;
+ hw->fc.requested_mode == e1000_fc_default)
+ hw->fc.requested_mode = e1000_fc_full;
return e1000e_setup_link(hw);
}
diff --git a/drivers/net/e1000e/ethtool.c b/drivers/net/e1000e/ethtool.c
index 62421ce..875d769 100644
--- a/drivers/net/e1000e/ethtool.c
+++ b/drivers/net/e1000e/ethtool.c
@@ -249,7 +249,7 @@ static int e1000_set_settings(struct net_device *netdev,
ADVERTISED_Autoneg;
ecmd->advertising = hw->phy.autoneg_advertised;
if (adapter->fc_autoneg)
- hw->fc.original_type = e1000_fc_default;
+ hw->fc.requested_mode = e1000_fc_default;
} else {
if (e1000_set_spd_dplx(adapter, ecmd->speed + ecmd->duplex)) {
clear_bit(__E1000_RESETTING, &adapter->state);
@@ -279,11 +279,11 @@ static void e1000_get_pauseparam(struct net_device *netdev,
pause->autoneg =
(adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);
- if (hw->fc.type == e1000_fc_rx_pause) {
+ if (hw->fc.current_mode == e1000_fc_rx_pause) {
pause->rx_pause = 1;
- } else if (hw->fc.type == e1000_fc_tx_pause) {
+ } else if (hw->fc.current_mode == e1000_fc_tx_pause) {
pause->tx_pause = 1;
- } else if (hw->fc.type == e1000_fc_full) {
+ } else if (hw->fc.current_mode == e1000_fc_full) {
pause->rx_pause = 1;
pause->tx_pause = 1;
}
@@ -301,19 +301,8 @@ static int e1000_set_pauseparam(struct net_device *netdev,
while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
msleep(1);
- if (pause->rx_pause && pause->tx_pause)
- hw->fc.type = e1000_fc_full;
- else if (pause->rx_pause && !pause->tx_pause)
- hw->fc.type = e1000_fc_rx_pause;
- else if (!pause->rx_pause && pause->tx_pause)
- hw->fc.type = e1000_fc_tx_pause;
- else if (!pause->rx_pause && !pause->tx_pause)
- hw->fc.type = e1000_fc_none;
-
- hw->fc.original_type = hw->fc.type;
-
if (adapter->fc_autoneg == AUTONEG_ENABLE) {
- hw->fc.type = e1000_fc_default;
+ hw->fc.requested_mode = e1000_fc_default;
if (netif_running(adapter->netdev)) {
e1000e_down(adapter);
e1000e_up(adapter);
@@ -321,6 +310,17 @@ static int e1000_set_pauseparam(struct net_device *netdev,
e1000e_reset(adapter);
}
} else {
+ if (pause->rx_pause && pause->tx_pause)
+ hw->fc.requested_mode = e1000_fc_full;
+ else if (pause->rx_pause && !pause->tx_pause)
+ hw->fc.requested_mode = e1000_fc_rx_pause;
+ else if (!pause->rx_pause && pause->tx_pause)
+ hw->fc.requested_mode = e1000_fc_tx_pause;
+ else if (!pause->rx_pause && !pause->tx_pause)
+ hw->fc.requested_mode = e1000_fc_none;
+
+ hw->fc.current_mode = hw->fc.requested_mode;
+
retval = ((hw->phy.media_type == e1000_media_type_fiber) ?
hw->mac.ops.setup_link(hw) : e1000e_force_mac_fc(hw));
}
diff --git a/drivers/net/e1000e/hw.h b/drivers/net/e1000e/hw.h
index ac1efb9..f25e961 100644
--- a/drivers/net/e1000e/hw.h
+++ b/drivers/net/e1000e/hw.h
@@ -437,7 +437,7 @@ enum e1000_rev_polarity{
e1000_rev_polarity_undefined = 0xFF
};
-enum e1000_fc_type {
+enum e1000_fc_mode {
e1000_fc_none = 0,
e1000_fc_rx_pause,
e1000_fc_tx_pause,
@@ -850,8 +850,8 @@ struct e1000_fc_info {
u16 pause_time; /* Flow control pause timer */
bool send_xon; /* Flow control send XON */
bool strict_ieee; /* Strict IEEE mode */
- enum e1000_fc_type type; /* Type of flow control */
- enum e1000_fc_type original_type;
+ enum e1000_fc_mode current_mode; /* FC mode in effect */
+ enum e1000_fc_mode requested_mode; /* FC mode requested by caller */
};
struct e1000_dev_spec_82571 {
diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c
index 11f0dd3..5d85f5b 100644
--- a/drivers/net/e1000e/ich8lan.c
+++ b/drivers/net/e1000e/ich8lan.c
@@ -2071,12 +2071,17 @@ static s32 e1000_setup_link_ich8lan(struct e1000_hw *hw)
* the default flow control setting, so we explicitly
* set it to full.
*/
- if (hw->fc.type == e1000_fc_default)
- hw->fc.type = e1000_fc_full;
+ if (hw->fc.requested_mode == e1000_fc_default)
+ hw->fc.requested_mode = e1000_fc_full;
- hw->fc.original_type = hw->fc.type;
+ /*
+ * Save off the requested flow control mode for use later. Depending
+ * on the link partner's capabilities, we may or may not use this mode.
+ */
+ hw->fc.current_mode = hw->fc.requested_mode;
- hw_dbg(hw, "After fix-ups FlowControl is now = %x\n", hw->fc.type);
+ hw_dbg(hw, "After fix-ups FlowControl is now = %x\n",
+ hw->fc.current_mode);
/* Continue to configure the copper link. */
ret_val = e1000_setup_copper_link_ich8lan(hw);
diff --git a/drivers/net/e1000e/lib.c b/drivers/net/e1000e/lib.c
index 37753d1..6674110 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)
}
if ((nvm_data & NVM_WORD0F_PAUSE_MASK) == 0)
- hw->fc.type = e1000_fc_none;
+ hw->fc.requested_mode = e1000_fc_none;
else if ((nvm_data & NVM_WORD0F_PAUSE_MASK) ==
NVM_WORD0F_ASM_DIR)
- hw->fc.type = e1000_fc_tx_pause;
+ hw->fc.requested_mode = e1000_fc_tx_pause;
else
- hw->fc.type = e1000_fc_full;
+ hw->fc.requested_mode = e1000_fc_full;
return 0;
}
@@ -678,23 +678,23 @@ s32 e1000e_setup_link(struct e1000_hw *hw)
return 0;
/*
- * If flow control is set to default, set flow control based on
- * the EEPROM flow control settings.
+ * If requested flow control is set to default, set flow control
+ * based on the EEPROM flow control settings.
*/
- if (hw->fc.type == e1000_fc_default) {
+ if (hw->fc.requested_mode == e1000_fc_default) {
ret_val = e1000_set_default_fc_generic(hw);
if (ret_val)
return ret_val;
}
/*
- * We want to save off the original Flow Control configuration just
- * in case we get disconnected and then reconnected into a different
- * hub or switch with different Flow Control capabilities.
+ * Save off the requested flow control mode for use later. Depending
+ * on the link partner's capabilities, we may or may not use this mode.
*/
- hw->fc.original_type = hw->fc.type;
+ hw->fc.current_mode = hw->fc.requested_mode;
- hw_dbg(hw, "After fix-ups FlowControl is now = %x\n", hw->fc.type);
+ hw_dbg(hw, "After fix-ups FlowControl is now = %x\n",
+ hw->fc.current_mode);
/* Call the necessary media_type subroutine to configure the link. */
ret_val = mac->ops.setup_physical_interface(hw);
@@ -746,7 +746,7 @@ static s32 e1000_commit_fc_settings_generic(struct e1000_hw *hw)
* do not support receiving pause frames).
* 3: Both Rx and Tx flow control (symmetric) are enabled.
*/
- switch (hw->fc.type) {
+ switch (hw->fc.current_mode) {
case e1000_fc_none:
/* Flow control completely disabled by a software over-ride. */
txcw = (E1000_TXCW_ANE | E1000_TXCW_FD);
@@ -928,7 +928,7 @@ s32 e1000e_set_fc_watermarks(struct e1000_hw *hw)
* ability to transmit pause frames is not enabled, then these
* registers will be set to 0.
*/
- if (hw->fc.type & e1000_fc_tx_pause) {
+ if (hw->fc.current_mode & e1000_fc_tx_pause) {
/*
* We need to set up the Receive Threshold high and low water
* marks as well as (optionally) enabling the transmission of
@@ -967,7 +967,7 @@ s32 e1000e_force_mac_fc(struct e1000_hw *hw)
* receive flow control.
*
* The "Case" statement below enables/disable flow control
- * according to the "hw->fc.type" parameter.
+ * according to the "hw->fc.current_mode" parameter.
*
* The possible values of the "fc" parameter are:
* 0: Flow control is completely disabled
@@ -978,9 +978,9 @@ s32 e1000e_force_mac_fc(struct e1000_hw *hw)
* 3: Both Rx and Tx flow control (symmetric) is enabled.
* other: No other values should be possible at this point.
*/
- hw_dbg(hw, "hw->fc.type = %u\n", hw->fc.type);
+ hw_dbg(hw, "hw->fc.current_mode = %u\n", hw->fc.current_mode);
- switch (hw->fc.type) {
+ switch (hw->fc.current_mode) {
case e1000_fc_none:
ctrl &= (~(E1000_CTRL_TFCE | E1000_CTRL_RFCE));
break;
@@ -1124,11 +1124,11 @@ s32 e1000e_config_fc_after_link_up(struct e1000_hw *hw)
* ONLY. Hence, we must now check to see if we need to
* turn OFF the TRANSMISSION of PAUSE frames.
*/
- if (hw->fc.original_type == e1000_fc_full) {
- hw->fc.type = e1000_fc_full;
+ if (hw->fc.requested_mode == e1000_fc_full) {
+ hw->fc.current_mode = e1000_fc_full;
hw_dbg(hw, "Flow Control = FULL.\r\n");
} else {
- hw->fc.type = e1000_fc_rx_pause;
+ hw->fc.current_mode = e1000_fc_rx_pause;
hw_dbg(hw, "Flow Control = "
"RX PAUSE frames only.\r\n");
}
@@ -1146,7 +1146,7 @@ s32 e1000e_config_fc_after_link_up(struct e1000_hw *hw)
(mii_nway_adv_reg & NWAY_AR_ASM_DIR) &&
(mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) &&
(mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR)) {
- hw->fc.type = e1000_fc_tx_pause;
+ hw->fc.current_mode = e1000_fc_tx_pause;
hw_dbg(hw, "Flow Control = Tx PAUSE frames only.\r\n");
}
/*
@@ -1162,14 +1162,14 @@ s32 e1000e_config_fc_after_link_up(struct e1000_hw *hw)
(mii_nway_adv_reg & NWAY_AR_ASM_DIR) &&
!(mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) &&
(mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR)) {
- hw->fc.type = e1000_fc_rx_pause;
+ hw->fc.current_mode = e1000_fc_rx_pause;
hw_dbg(hw, "Flow Control = Rx PAUSE frames only.\r\n");
} else {
/*
* Per the IEEE spec, at this point flow control
* should be disabled.
*/
- hw->fc.type = e1000_fc_none;
+ hw->fc.current_mode = e1000_fc_none;
hw_dbg(hw, "Flow Control = NONE.\r\n");
}
@@ -1185,7 +1185,7 @@ s32 e1000e_config_fc_after_link_up(struct e1000_hw *hw)
}
if (duplex == HALF_DUPLEX)
- hw->fc.type = e1000_fc_none;
+ hw->fc.current_mode = e1000_fc_none;
/*
* Now we call a subroutine to actually force the MAC
diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index cd6d132..f10252b 100644
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -2785,7 +2785,7 @@ void e1000e_reset(struct e1000_adapter *adapter)
else
fc->pause_time = E1000_FC_PAUSE_TIME;
fc->send_xon = 1;
- fc->type = fc->original_type;
+ fc->current_mode = fc->requested_mode;
/* Allow time for pending master requests to run */
mac->ops.reset_hw(hw);
@@ -4983,8 +4983,8 @@ static int __devinit e1000_probe(struct pci_dev *pdev,
/* Initialize link parameters. User can change them with ethtool */
adapter->hw.mac.autoneg = 1;
adapter->fc_autoneg = 1;
- adapter->hw.fc.original_type = e1000_fc_default;
- adapter->hw.fc.type = e1000_fc_default;
+ adapter->hw.fc.requested_mode = e1000_fc_default;
+ adapter->hw.fc.current_mode = e1000_fc_default;
adapter->hw.phy.autoneg_advertised = 0x2f;
/* ring size defaults */
diff --git a/drivers/net/e1000e/phy.c b/drivers/net/e1000e/phy.c
index d3aa6b7..85f8a74 100644
--- a/drivers/net/e1000e/phy.c
+++ b/drivers/net/e1000e/phy.c
@@ -746,7 +746,7 @@ static s32 e1000_phy_setup_autoneg(struct e1000_hw *hw)
* other: No software override. The flow control configuration
* in the EEPROM is used.
*/
- switch (hw->fc.type) {
+ switch (hw->fc.current_mode) {
case e1000_fc_none:
/*
* Flow control (Rx & Tx) is completely disabled by a
@@ -1116,7 +1116,7 @@ void e1000e_phy_force_speed_duplex_setup(struct e1000_hw *hw, u16 *phy_ctrl)
u32 ctrl;
/* Turn off flow control when forcing speed/duplex */
- hw->fc.type = e1000_fc_none;
+ hw->fc.current_mode = e1000_fc_none;
/* Force speed/duplex on the mac */
ctrl = er32(CTRL);
--
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