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path: root/drivers/net/ixgbe/ixgbe_82599.c
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Diffstat (limited to 'drivers/net/ixgbe/ixgbe_82599.c')
-rw-r--r--drivers/net/ixgbe/ixgbe_82599.c112
1 files changed, 76 insertions, 36 deletions
diff --git a/drivers/net/ixgbe/ixgbe_82599.c b/drivers/net/ixgbe/ixgbe_82599.c
index 1f30e163bd9c..12fc0e7ba2ca 100644
--- a/drivers/net/ixgbe/ixgbe_82599.c
+++ b/drivers/net/ixgbe/ixgbe_82599.c
@@ -39,6 +39,9 @@
#define IXGBE_82599_MC_TBL_SIZE 128
#define IXGBE_82599_VFT_TBL_SIZE 128
+void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw);
+void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw);
+void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw);
s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
ixgbe_link_speed speed,
bool autoneg,
@@ -68,7 +71,15 @@ static void ixgbe_init_mac_link_ops_82599(struct ixgbe_hw *hw)
if (hw->phy.multispeed_fiber) {
/* Set up dual speed SFP+ support */
mac->ops.setup_link = &ixgbe_setup_mac_link_multispeed_fiber;
+ mac->ops.disable_tx_laser =
+ &ixgbe_disable_tx_laser_multispeed_fiber;
+ mac->ops.enable_tx_laser =
+ &ixgbe_enable_tx_laser_multispeed_fiber;
+ mac->ops.flap_tx_laser = &ixgbe_flap_tx_laser_multispeed_fiber;
} else {
+ mac->ops.disable_tx_laser = NULL;
+ mac->ops.enable_tx_laser = NULL;
+ mac->ops.flap_tx_laser = NULL;
if ((mac->ops.get_media_type(hw) ==
ixgbe_media_type_backplane) &&
(hw->phy.smart_speed == ixgbe_smart_speed_auto ||
@@ -412,6 +423,67 @@ s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw,
return status;
}
+ /**
+ * ixgbe_disable_tx_laser_multispeed_fiber - Disable Tx laser
+ * @hw: pointer to hardware structure
+ *
+ * The base drivers may require better control over SFP+ module
+ * PHY states. This includes selectively shutting down the Tx
+ * laser on the PHY, effectively halting physical link.
+ **/
+void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
+{
+ u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
+
+ /* Disable tx laser; allow 100us to go dark per spec */
+ esdp_reg |= IXGBE_ESDP_SDP3;
+ IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
+ IXGBE_WRITE_FLUSH(hw);
+ udelay(100);
+}
+
+/**
+ * ixgbe_enable_tx_laser_multispeed_fiber - Enable Tx laser
+ * @hw: pointer to hardware structure
+ *
+ * The base drivers may require better control over SFP+ module
+ * PHY states. This includes selectively turning on the Tx
+ * laser on the PHY, effectively starting physical link.
+ **/
+void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
+{
+ u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);
+
+ /* Enable tx laser; allow 100ms to light up */
+ esdp_reg &= ~IXGBE_ESDP_SDP3;
+ IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
+ IXGBE_WRITE_FLUSH(hw);
+ msleep(100);
+}
+
+/**
+ * ixgbe_flap_tx_laser_multispeed_fiber - Flap Tx laser
+ * @hw: pointer to hardware structure
+ *
+ * When the driver changes the link speeds that it can support,
+ * it sets autotry_restart to true to indicate that we need to
+ * initiate a new autotry session with the link partner. To do
+ * so, we set the speed then disable and re-enable the tx laser, to
+ * alert the link partner that it also needs to restart autotry on its
+ * end. This is consistent with true clause 37 autoneg, which also
+ * involves a loss of signal.
+ **/
+void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
+{
+ hw_dbg(hw, "ixgbe_flap_tx_laser_multispeed_fiber\n");
+
+ if (hw->mac.autotry_restart) {
+ ixgbe_disable_tx_laser_multispeed_fiber(hw);
+ ixgbe_enable_tx_laser_multispeed_fiber(hw);
+ hw->mac.autotry_restart = false;
+ }
+}
+
/**
* ixgbe_setup_mac_link_multispeed_fiber - Set MAC link speed
* @hw: pointer to hardware structure
@@ -440,16 +512,6 @@ s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
speed &= phy_link_speed;
/*
- * When the driver changes the link speeds that it can support,
- * it sets autotry_restart to true to indicate that we need to
- * initiate a new autotry session with the link partner. To do
- * so, we set the speed then disable and re-enable the tx laser, to
- * alert the link partner that it also needs to restart autotry on its
- * end. This is consistent with true clause 37 autoneg, which also
- * involves a loss of signal.
- */
-
- /*
* Try each speed one by one, highest priority first. We do this in
* software because 10gb fiber doesn't support speed autonegotiation.
*/
@@ -466,6 +528,7 @@ s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
/* Set the module link speed */
esdp_reg |= (IXGBE_ESDP_SDP5_DIR | IXGBE_ESDP_SDP5);
IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
+ IXGBE_WRITE_FLUSH(hw);
/* Allow module to change analog characteristics (1G->10G) */
msleep(40);
@@ -478,19 +541,7 @@ s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
return status;
/* Flap the tx laser if it has not already been done */
- if (hw->mac.autotry_restart) {
- /* Disable tx laser; allow 100us to go dark per spec */
- esdp_reg |= IXGBE_ESDP_SDP3;
- IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
- udelay(100);
-
- /* Enable tx laser; allow 2ms to light up per spec */
- esdp_reg &= ~IXGBE_ESDP_SDP3;
- IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
- msleep(2);
-
- hw->mac.autotry_restart = false;
- }
+ hw->mac.ops.flap_tx_laser(hw);
/*
* Wait for the controller to acquire link. Per IEEE 802.3ap,
@@ -525,6 +576,7 @@ s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
esdp_reg &= ~IXGBE_ESDP_SDP5;
esdp_reg |= IXGBE_ESDP_SDP5_DIR;
IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
+ IXGBE_WRITE_FLUSH(hw);
/* Allow module to change analog characteristics (10G->1G) */
msleep(40);
@@ -537,19 +589,7 @@ s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw,
return status;
/* Flap the tx laser if it has not already been done */
- if (hw->mac.autotry_restart) {
- /* Disable tx laser; allow 100us to go dark per spec */
- esdp_reg |= IXGBE_ESDP_SDP3;
- IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
- udelay(100);
-
- /* Enable tx laser; allow 2ms to light up per spec */
- esdp_reg &= ~IXGBE_ESDP_SDP3;
- IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
- msleep(2);
-
- hw->mac.autotry_restart = false;
- }
+ hw->mac.ops.flap_tx_laser(hw);
/* Wait for the link partner to also set speed */
msleep(100);
generated by cgit v1.2.3 (git 2.0.4) at 2024-06-13 10:37:46 +0000