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authorEmil Tantilov <emil.s.tantilov@intel.com>2011-04-08 01:24:05 +0000
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2011-04-27 02:12:01 -0700
commit98508c93003d8d24662f32c66dbe4746340c33d4 (patch)
tree53f79a65e4849324fcb6fe5b69104fc30cad65af /drivers/net/ixgbe/ixgbe_x540.c
parent0665b09f81760c38a882bed65d495a4bd31a5767 (diff)
downloadop-kernel-dev-98508c93003d8d24662f32c66dbe4746340c33d4.zip
op-kernel-dev-98508c93003d8d24662f32c66dbe4746340c33d4.tar.gz
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/net/ixgbe/ixgbe_x540.c')
-rw-r--r--drivers/net/ixgbe/ixgbe_x540.c64
1 files changed, 62 insertions, 2 deletions
diff --git a/drivers/net/ixgbe/ixgbe_x540.c b/drivers/net/ixgbe/ixgbe_x540.c
index 932394f..75c6465 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,
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