#include "igc_mac.h"
#include "igc_hw.h"
-/* forward declaration */
-static s32 igc_set_fc_watermarks(struct igc_hw *hw);
-
/**
* igc_disable_pcie_master - Disables PCI-express master access
* @hw: pointer to the HW structure
}
/**
+ * igc_set_fc_watermarks - Set flow control high/low watermarks
+ * @hw: pointer to the HW structure
+ *
+ * Sets the flow control high/low threshold (watermark) registers. If
+ * flow control XON frame transmission is enabled, then set XON frame
+ * transmission as well.
+ */
+static s32 igc_set_fc_watermarks(struct igc_hw *hw)
+{
+ u32 fcrtl = 0, fcrth = 0;
+
+ /* Set the flow control receive threshold registers. Normally,
+ * these registers will be set to a default threshold that may be
+ * adjusted later by the driver's runtime code. However, if the
+ * ability to transmit pause frames is not enabled, then these
+ * registers will be set to 0.
+ */
+ if (hw->fc.current_mode & igc_fc_tx_pause) {
+ /* We need to set up the Receive Threshold high and low water
+ * marks as well as (optionally) enabling the transmission of
+ * XON frames.
+ */
+ fcrtl = hw->fc.low_water;
+ if (hw->fc.send_xon)
+ fcrtl |= IGC_FCRTL_XONE;
+
+ fcrth = hw->fc.high_water;
+ }
+ wr32(IGC_FCRTL, fcrtl);
+ wr32(IGC_FCRTH, fcrth);
+
+ return 0;
+}
+
+/**
* igc_setup_link - Setup flow control and link settings
* @hw: pointer to the HW structure
*
}
/**
- * igc_set_fc_watermarks - Set flow control high/low watermarks
- * @hw: pointer to the HW structure
- *
- * Sets the flow control high/low threshold (watermark) registers. If
- * flow control XON frame transmission is enabled, then set XON frame
- * transmission as well.
- */
-static s32 igc_set_fc_watermarks(struct igc_hw *hw)
-{
- u32 fcrtl = 0, fcrth = 0;
-
- /* Set the flow control receive threshold registers. Normally,
- * these registers will be set to a default threshold that may be
- * adjusted later by the driver's runtime code. However, if the
- * ability to transmit pause frames is not enabled, then these
- * registers will be set to 0.
- */
- if (hw->fc.current_mode & igc_fc_tx_pause) {
- /* We need to set up the Receive Threshold high and low water
- * marks as well as (optionally) enabling the transmission of
- * XON frames.
- */
- fcrtl = hw->fc.low_water;
- if (hw->fc.send_xon)
- fcrtl |= IGC_FCRTL_XONE;
-
- fcrth = hw->fc.high_water;
- }
- wr32(IGC_FCRTL, fcrtl);
- wr32(IGC_FCRTH, fcrth);
-
- return 0;
-}
-
-/**
* igc_clear_hw_cntrs_base - Clear base hardware counters
* @hw: pointer to the HW structure
*
#include "igc_phy.h"
-/* forward declaration */
-static s32 igc_phy_setup_autoneg(struct igc_hw *hw);
-static s32 igc_wait_autoneg(struct igc_hw *hw);
-
/**
* igc_check_reset_block - Check if PHY reset is blocked
* @hw: pointer to the HW structure
}
/**
- * igc_copper_link_autoneg - Setup/Enable autoneg for copper link
- * @hw: pointer to the HW structure
- *
- * Performs initial bounds checking on autoneg advertisement parameter, then
- * configure to advertise the full capability. Setup the PHY to autoneg
- * and restart the negotiation process between the link partner. If
- * autoneg_wait_to_complete, then wait for autoneg to complete before exiting.
- */
-static s32 igc_copper_link_autoneg(struct igc_hw *hw)
-{
- struct igc_phy_info *phy = &hw->phy;
- u16 phy_ctrl;
- s32 ret_val;
-
- /* Perform some bounds checking on the autoneg advertisement
- * parameter.
- */
- phy->autoneg_advertised &= phy->autoneg_mask;
-
- /* If autoneg_advertised is zero, we assume it was not defaulted
- * by the calling code so we set to advertise full capability.
- */
- if (phy->autoneg_advertised == 0)
- phy->autoneg_advertised = phy->autoneg_mask;
-
- hw_dbg("Reconfiguring auto-neg advertisement params\n");
- ret_val = igc_phy_setup_autoneg(hw);
- if (ret_val) {
- hw_dbg("Error Setting up Auto-Negotiation\n");
- goto out;
- }
- hw_dbg("Restarting Auto-Neg\n");
-
- /* Restart auto-negotiation by setting the Auto Neg Enable bit and
- * the Auto Neg Restart bit in the PHY control register.
- */
- ret_val = phy->ops.read_reg(hw, PHY_CONTROL, &phy_ctrl);
- if (ret_val)
- goto out;
-
- phy_ctrl |= (MII_CR_AUTO_NEG_EN | MII_CR_RESTART_AUTO_NEG);
- ret_val = phy->ops.write_reg(hw, PHY_CONTROL, phy_ctrl);
- if (ret_val)
- goto out;
-
- /* Does the user want to wait for Auto-Neg to complete here, or
- * check at a later time (for example, callback routine).
- */
- if (phy->autoneg_wait_to_complete) {
- ret_val = igc_wait_autoneg(hw);
- if (ret_val) {
- hw_dbg("Error while waiting for autoneg to complete\n");
- goto out;
- }
- }
-
- hw->mac.get_link_status = true;
-
-out:
- return ret_val;
-}
-
-/**
- * igc_wait_autoneg - Wait for auto-neg completion
- * @hw: pointer to the HW structure
- *
- * Waits for auto-negotiation to complete or for the auto-negotiation time
- * limit to expire, which ever happens first.
- */
-static s32 igc_wait_autoneg(struct igc_hw *hw)
-{
- u16 i, phy_status;
- s32 ret_val = 0;
-
- /* Break after autoneg completes or PHY_AUTO_NEG_LIMIT expires. */
- for (i = PHY_AUTO_NEG_LIMIT; i > 0; i--) {
- ret_val = hw->phy.ops.read_reg(hw, PHY_STATUS, &phy_status);
- if (ret_val)
- break;
- ret_val = hw->phy.ops.read_reg(hw, PHY_STATUS, &phy_status);
- if (ret_val)
- break;
- if (phy_status & MII_SR_AUTONEG_COMPLETE)
- break;
- msleep(100);
- }
-
- /* PHY_AUTO_NEG_TIME expiration doesn't guarantee auto-negotiation
- * has completed.
- */
- return ret_val;
-}
-
-/**
* igc_phy_setup_autoneg - Configure PHY for auto-negotiation
* @hw: pointer to the HW structure
*
}
/**
+ * igc_wait_autoneg - Wait for auto-neg completion
+ * @hw: pointer to the HW structure
+ *
+ * Waits for auto-negotiation to complete or for the auto-negotiation time
+ * limit to expire, which ever happens first.
+ */
+static s32 igc_wait_autoneg(struct igc_hw *hw)
+{
+ u16 i, phy_status;
+ s32 ret_val = 0;
+
+ /* Break after autoneg completes or PHY_AUTO_NEG_LIMIT expires. */
+ for (i = PHY_AUTO_NEG_LIMIT; i > 0; i--) {
+ ret_val = hw->phy.ops.read_reg(hw, PHY_STATUS, &phy_status);
+ if (ret_val)
+ break;
+ ret_val = hw->phy.ops.read_reg(hw, PHY_STATUS, &phy_status);
+ if (ret_val)
+ break;
+ if (phy_status & MII_SR_AUTONEG_COMPLETE)
+ break;
+ msleep(100);
+ }
+
+ /* PHY_AUTO_NEG_TIME expiration doesn't guarantee auto-negotiation
+ * has completed.
+ */
+ return ret_val;
+}
+
+/**
+ * igc_copper_link_autoneg - Setup/Enable autoneg for copper link
+ * @hw: pointer to the HW structure
+ *
+ * Performs initial bounds checking on autoneg advertisement parameter, then
+ * configure to advertise the full capability. Setup the PHY to autoneg
+ * and restart the negotiation process between the link partner. If
+ * autoneg_wait_to_complete, then wait for autoneg to complete before exiting.
+ */
+static s32 igc_copper_link_autoneg(struct igc_hw *hw)
+{
+ struct igc_phy_info *phy = &hw->phy;
+ u16 phy_ctrl;
+ s32 ret_val;
+
+ /* Perform some bounds checking on the autoneg advertisement
+ * parameter.
+ */
+ phy->autoneg_advertised &= phy->autoneg_mask;
+
+ /* If autoneg_advertised is zero, we assume it was not defaulted
+ * by the calling code so we set to advertise full capability.
+ */
+ if (phy->autoneg_advertised == 0)
+ phy->autoneg_advertised = phy->autoneg_mask;
+
+ hw_dbg("Reconfiguring auto-neg advertisement params\n");
+ ret_val = igc_phy_setup_autoneg(hw);
+ if (ret_val) {
+ hw_dbg("Error Setting up Auto-Negotiation\n");
+ goto out;
+ }
+ hw_dbg("Restarting Auto-Neg\n");
+
+ /* Restart auto-negotiation by setting the Auto Neg Enable bit and
+ * the Auto Neg Restart bit in the PHY control register.
+ */
+ ret_val = phy->ops.read_reg(hw, PHY_CONTROL, &phy_ctrl);
+ if (ret_val)
+ goto out;
+
+ phy_ctrl |= (MII_CR_AUTO_NEG_EN | MII_CR_RESTART_AUTO_NEG);
+ ret_val = phy->ops.write_reg(hw, PHY_CONTROL, phy_ctrl);
+ if (ret_val)
+ goto out;
+
+ /* Does the user want to wait for Auto-Neg to complete here, or
+ * check at a later time (for example, callback routine).
+ */
+ if (phy->autoneg_wait_to_complete) {
+ ret_val = igc_wait_autoneg(hw);
+ if (ret_val) {
+ hw_dbg("Error while waiting for autoneg to complete\n");
+ goto out;
+ }
+ }
+
+ hw->mac.get_link_status = true;
+
+out:
+ return ret_val;
+}
+
+/**
* igc_setup_copper_link - Configure copper link settings
* @hw: pointer to the HW structure
*
projects / platform / kernel / linux-rpi.git / commitdiff