[dpdk-dev,v2,3/7] net/ixgbe/base: configure speeds for KR/KX backplane

Message ID 1484232811-39257-4-git-send-email-wei.dai@intel.com
State Accepted, archived
Delegated to: Ferruh Yigit
Headers show

Checks

Context Check Description
ci/Intel compilation fail Compilation issues
ci/checkpatch success coding style OK

Commit Message

Wei Dai Jan. 12, 2017, 2:53 p.m.
This patch ensures that the advertised link speeds are configured
for KR/KX backplane on some new platform. Without this patch the
link remains at 1G when resuming from low power after being
downshifted by LPLU(Low Power Link Up).
This patch ensures that the advertise speeds are not changed
for 2.5G configurations.

Signed-off-by: Wei Dai <wei.dai@intel.com>
---
 drivers/net/ixgbe/base/ixgbe_x550.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

Patch

diff --git a/drivers/net/ixgbe/base/ixgbe_x550.c b/drivers/net/ixgbe/base/ixgbe_x550.c
index 2f7f446..b23d479 100644
--- a/drivers/net/ixgbe/base/ixgbe_x550.c
+++ b/drivers/net/ixgbe/base/ixgbe_x550.c
@@ -2627,12 +2627,11 @@  s32 ixgbe_init_ext_t_x550em(struct ixgbe_hw *hw)
 /**
  *  ixgbe_setup_kr_x550em - Configure the KR PHY.
  *  @hw: pointer to hardware structure
- *
- *  Configures the integrated KR PHY for X550EM_x.
  **/
 s32 ixgbe_setup_kr_x550em(struct ixgbe_hw *hw)
 {
-	if (hw->mac.type != ixgbe_mac_X550EM_x)
+	/* leave link alone for 2.5G */
+	if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_2_5GB_FULL)
 		return IXGBE_SUCCESS;
 
 	return ixgbe_setup_kr_speed_x550em(hw, hw->phy.autoneg_advertised);