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Commit 98508c93 authored by Emil Tantilov's avatar Emil Tantilov Committed by Jeff Kirsher
Browse files

ixgbe: add LED blink code for x540 



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

Signed-off-by: default avatarEmil Tantilov <emil.s.tantilov@intel.com>
Tested-by: default avatarEvan Swanson <evan.swanson@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent 0665b09f

drivers/net/ixgbe/ixgbe_x540.c

+62 −2
Original line number Diff line number Diff line
@@ -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,