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ixgbe: add LED blink code for x540

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Implement blink_led_start and blink_led_stop functions for x540
using the MACC register.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Evan Swanson <evan.swanson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Emil Tantilov 2011-04-08 01:24:05 +00:00 committed by Jeff Kirsher
parent 0665b09f81
commit 98508c9300
1 changed files with 62 additions and 2 deletions
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64
drivers/net/ixgbe/ixgbe_x540.c
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@ -744,6 +744,66 @@ static void ixgbe_release_swfw_sync_semaphore(struct ixgbe_hw *hw)
IXGBE_WRITE_FLUSH(hw);
}
/**
* ixgbe_blink_led_start_X540 - Blink LED based on index.
* @hw: pointer to hardware structure
* @index: led number to blink
*
* Devices that implement the version 2 interface:
* X540
**/
static s32 ixgbe_blink_led_start_X540(struct ixgbe_hw *hw, u32 index)
{
u32 macc_reg;
u32 ledctl_reg;
/*
* In order for the blink bit in the LED control register
* to work, link and speed must be forced in the MAC. We
* will reverse this when we stop the blinking.
*/
macc_reg = IXGBE_READ_REG(hw, IXGBE_MACC);
macc_reg |= IXGBE_MACC_FLU | IXGBE_MACC_FSV_10G | IXGBE_MACC_FS;
IXGBE_WRITE_REG(hw, IXGBE_MACC, macc_reg);
/* Set the LED to LINK_UP + BLINK. */
ledctl_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
ledctl_reg &= ~IXGBE_LED_MODE_MASK(index);
ledctl_reg |= IXGBE_LED_BLINK(index);
IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, ledctl_reg);
IXGBE_WRITE_FLUSH(hw);
return 0;
}
/**
* ixgbe_blink_led_stop_X540 - Stop blinking LED based on index.
* @hw: pointer to hardware structure
* @index: led number to stop blinking
*
* Devices that implement the version 2 interface:
* X540
**/
static s32 ixgbe_blink_led_stop_X540(struct ixgbe_hw *hw, u32 index)
{
u32 macc_reg;
u32 ledctl_reg;
/* Restore the LED to its default value. */
ledctl_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL);
ledctl_reg &= ~IXGBE_LED_MODE_MASK(index);
ledctl_reg |= IXGBE_LED_LINK_ACTIVE << IXGBE_LED_MODE_SHIFT(index);
ledctl_reg &= ~IXGBE_LED_BLINK(index);
IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, ledctl_reg);
/* Unforce link and speed in the MAC. */
macc_reg = IXGBE_READ_REG(hw, IXGBE_MACC);
macc_reg &= ~(IXGBE_MACC_FLU | IXGBE_MACC_FSV_10G | IXGBE_MACC_FS);
IXGBE_WRITE_REG(hw, IXGBE_MACC, macc_reg);
IXGBE_WRITE_FLUSH(hw);
return 0;
}
static struct ixgbe_mac_operations mac_ops_X540 = {
.init_hw = &ixgbe_init_hw_generic,
.reset_hw = &ixgbe_reset_hw_X540,
@ -767,8 +827,8 @@ static struct ixgbe_mac_operations mac_ops_X540 = {
.get_link_capabilities = &ixgbe_get_copper_link_capabilities_generic,
.led_on = &ixgbe_led_on_generic,
.led_off = &ixgbe_led_off_generic,
.blink_led_start = &ixgbe_blink_led_start_generic,
.blink_led_stop = &ixgbe_blink_led_stop_generic,
.blink_led_start = &ixgbe_blink_led_start_X540,
.blink_led_stop = &ixgbe_blink_led_stop_X540,
.set_rar = &ixgbe_set_rar_generic,
.clear_rar = &ixgbe_clear_rar_generic,
.set_vmdq = &ixgbe_set_vmdq_generic,