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i40e: Fix for 10G ports LED not blinking 

On some hardware LEDs would not blink after command 'ethtool -p {eth-port}'
in certain circumstances. Now, function does not care about the activity
of the LED (though still preserves its state) but forcibly executes
identification blinking and then restores the LED state.

Signed-off-by: Piotr Marczak <piotr.marczak@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Piotr Marczak 2019-02-06 15:08:19 -08:00 committed by Jeff Kirsher
parent bf4bf09bdd
commit 2622133173
1 changed files with 0 additions and 33 deletions
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33
drivers/net/ethernet/intel/i40e/i40e_common.c
View File

@ -1466,7 +1466,6 @@ static u32 i40e_led_is_mine(struct i40e_hw *hw, int idx)
**/
u32 i40e_led_get(struct i40e_hw *hw)
{
u32 current_mode = 0;
u32 mode = 0;
int i;
@ -1479,21 +1478,6 @@ u32 i40e_led_get(struct i40e_hw *hw)
if (!gpio_val)
continue;
/* ignore gpio LED src mode entries related to the activity
* LEDs
*/
current_mode = ((gpio_val & I40E_GLGEN_GPIO_CTL_LED_MODE_MASK)
>> I40E_GLGEN_GPIO_CTL_LED_MODE_SHIFT);
switch (current_mode) {
case I40E_COMBINED_ACTIVITY:
case I40E_FILTER_ACTIVITY:
case I40E_MAC_ACTIVITY:
case I40E_LINK_ACTIVITY:
continue;
default:
break;
}
mode = (gpio_val & I40E_GLGEN_GPIO_CTL_LED_MODE_MASK) >>
I40E_GLGEN_GPIO_CTL_LED_MODE_SHIFT;
break;
@ -1513,7 +1497,6 @@ u32 i40e_led_get(struct i40e_hw *hw)
**/
void i40e_led_set(struct i40e_hw *hw, u32 mode, bool blink)
{
u32 current_mode = 0;
int i;
if (mode & 0xfffffff0)
@ -1527,22 +1510,6 @@ void i40e_led_set(struct i40e_hw *hw, u32 mode, bool blink)
if (!gpio_val)
continue;
/* ignore gpio LED src mode entries related to the activity
* LEDs
*/
current_mode = ((gpio_val & I40E_GLGEN_GPIO_CTL_LED_MODE_MASK)
>> I40E_GLGEN_GPIO_CTL_LED_MODE_SHIFT);
switch (current_mode) {
case I40E_COMBINED_ACTIVITY:
case I40E_FILTER_ACTIVITY:
case I40E_MAC_ACTIVITY:
case I40E_LINK_ACTIVITY:
continue;
default:
break;
}
gpio_val &= ~I40E_GLGEN_GPIO_CTL_LED_MODE_MASK;
/* this & is a bit of paranoia, but serves as a range check */
gpio_val |= ((mode << I40E_GLGEN_GPIO_CTL_LED_MODE_SHIFT) &