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i40e: update led set args

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Add an argument to led function and refactor code to flash LED lights
correctly.

Change-Id: I00b21607ced53aaa057159503875708871946259
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Jesse Brandeburg 2013-11-28 06:39:33 +00:00 committed by Jeff Kirsher
parent 12dc4fe398
commit 0556a9e3a2
3 changed files with 72 additions and 34 deletions
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98
drivers/net/ethernet/intel/i40e/i40e_common.c
View File

@ -400,6 +400,38 @@ void i40e_clear_pxe_mode(struct i40e_hw *hw)
}
}
/**
* i40e_led_is_mine - helper to find matching led
* @hw: pointer to the hw struct
* @idx: index into GPIO registers
*
* returns: 0 if no match, otherwise the value of the GPIO_CTL register
*/
static u32 i40e_led_is_mine(struct i40e_hw *hw, int idx)
{
u32 gpio_val = 0;
u32 port;
if (!hw->func_caps.led[idx])
return 0;
gpio_val = rd32(hw, I40E_GLGEN_GPIO_CTL(idx));
port = (gpio_val & I40E_GLGEN_GPIO_CTL_PRT_NUM_MASK) >>
I40E_GLGEN_GPIO_CTL_PRT_NUM_SHIFT;
/* if PRT_NUM_NA is 1 then this LED is not port specific, OR
* if it is not our port then ignore
*/
if ((gpio_val & I40E_GLGEN_GPIO_CTL_PRT_NUM_NA_MASK) ||
(port != hw->port))
return 0;
return gpio_val;
}
#define I40E_LED0 22
#define I40E_LINK_ACTIVITY 0xC
/**
* i40e_led_get - return current on/off mode
* @hw: pointer to the hw struct
@ -411,24 +443,20 @@ void i40e_clear_pxe_mode(struct i40e_hw *hw)
**/
u32 i40e_led_get(struct i40e_hw *hw)
{
u32 gpio_val = 0;
u32 mode = 0;
u32 port;
int i;
for (i = 0; i < I40E_HW_CAP_MAX_GPIO; i++) {
if (!hw->func_caps.led[i])
/* as per the documentation GPIO 22-29 are the LED
* GPIO pins named LED0..LED7
*/
for (i = I40E_LED0; i <= I40E_GLGEN_GPIO_CTL_MAX_INDEX; i++) {
u32 gpio_val = i40e_led_is_mine(hw, i);
if (!gpio_val)
continue;
gpio_val = rd32(hw, I40E_GLGEN_GPIO_CTL(i));
port = (gpio_val & I40E_GLGEN_GPIO_CTL_PRT_NUM_MASK)
>> I40E_GLGEN_GPIO_CTL_PRT_NUM_SHIFT;
if (port != hw->port)
continue;
mode = (gpio_val & I40E_GLGEN_GPIO_CTL_LED_MODE_MASK)
>> I40E_GLGEN_GPIO_CTL_INT_MODE_SHIFT;
mode = (gpio_val & I40E_GLGEN_GPIO_CTL_LED_MODE_MASK) >>
I40E_GLGEN_GPIO_CTL_LED_MODE_SHIFT;
break;
}
@ -438,31 +466,41 @@ u32 i40e_led_get(struct i40e_hw *hw)
/**
* i40e_led_set - set new on/off mode
* @hw: pointer to the hw struct
* @mode: 0=off, else on (see EAS for mode details)
* @mode: 0=off, 0xf=on (else see manual for mode details)
* @blink: true if the LED should blink when on, false if steady
*
* if this function is used to turn on the blink it should
* be used to disable the blink when restoring the original state.
**/
void i40e_led_set(struct i40e_hw *hw, u32 mode)
void i40e_led_set(struct i40e_hw *hw, u32 mode, bool blink)
{
u32 gpio_val = 0;
u32 led_mode = 0;
u32 port;
int i;
for (i = 0; i < I40E_HW_CAP_MAX_GPIO; i++) {
if (!hw->func_caps.led[i])
if (mode & 0xfffffff0)
hw_dbg(hw, "invalid mode passed in %X\n", mode);
/* as per the documentation GPIO 22-29 are the LED
* GPIO pins named LED0..LED7
*/
for (i = I40E_LED0; i <= I40E_GLGEN_GPIO_CTL_MAX_INDEX; i++) {
u32 gpio_val = i40e_led_is_mine(hw, i);
if (!gpio_val)
continue;
gpio_val = rd32(hw, I40E_GLGEN_GPIO_CTL(i));
port = (gpio_val & I40E_GLGEN_GPIO_CTL_PRT_NUM_MASK)
>> I40E_GLGEN_GPIO_CTL_PRT_NUM_SHIFT;
if (port != hw->port)
continue;
led_mode = (mode << I40E_GLGEN_GPIO_CTL_LED_MODE_SHIFT) &
I40E_GLGEN_GPIO_CTL_LED_MODE_MASK;
gpio_val &= ~I40E_GLGEN_GPIO_CTL_LED_MODE_MASK;
gpio_val |= led_mode;
/* this & is a bit of paranoia, but serves as a range check */
gpio_val |= ((mode << I40E_GLGEN_GPIO_CTL_LED_MODE_SHIFT) &
I40E_GLGEN_GPIO_CTL_LED_MODE_MASK);
if (mode == I40E_LINK_ACTIVITY)
blink = false;
gpio_val |= (blink ? 1 : 0) <<
I40E_GLGEN_GPIO_CTL_LED_BLINK_SHIFT;
wr32(hw, I40E_GLGEN_GPIO_CTL(i), gpio_val);
break;
}
}

6
drivers/net/ethernet/intel/i40e/i40e_ethtool.c
View File

@ -916,13 +916,13 @@ static int i40e_set_phys_id(struct net_device *netdev,
pf->led_status = i40e_led_get(hw);
return blink_freq;
case ETHTOOL_ID_ON:
i40e_led_set(hw, 0xF);
i40e_led_set(hw, 0xF, false);
break;
case ETHTOOL_ID_OFF:
i40e_led_set(hw, 0x0);
i40e_led_set(hw, 0x0, false);
break;
case ETHTOOL_ID_INACTIVE:
i40e_led_set(hw, pf->led_status);
i40e_led_set(hw, pf->led_status, false);
break;
}

2
drivers/net/ethernet/intel/i40e/i40e_prototype.h
View File

@ -61,7 +61,7 @@ void i40e_debug_aq(struct i40e_hw *hw,
void i40e_idle_aq(struct i40e_hw *hw);
u32 i40e_led_get(struct i40e_hw *hw);
void i40e_led_set(struct i40e_hw *hw, u32 mode);
void i40e_led_set(struct i40e_hw *hw, u32 mode, bool blink);
/* admin send queue commands */