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| author | Emil Tantilov <emil.s.tantilov@intel.com> | 2011-04-08 01:24:05 +0000 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-04-27 02:12:01 -0700 |
| commit | 98508c93003d8d24662f32c66dbe4746340c33d4 (patch) | |
| tree | 53f79a65e4849324fcb6fe5b69104fc30cad65af /drivers | |
| parent | 0665b09f81760c38a882bed65d495a4bd31a5767 (diff) | |
| download | lwn-98508c93003d8d24662f32c66dbe4746340c33d4.tar.gz lwn-98508c93003d8d24662f32c66dbe4746340c33d4.zip | |
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: 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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_x540.c | 64 |
1 files changed, 62 insertions, 2 deletions
diff --git a/drivers/net/ixgbe/ixgbe_x540.c b/drivers/net/ixgbe/ixgbe_x540.c index 932394fce439..75c6465db893 100644 --- a/drivers/net/ixgbe/ixgbe_x540.c +++ b/drivers/net/ixgbe/ixgbe_x540.c @@ -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, |