-----Original Message----- From: Intel-wired-lan intel-wired-lan-bounces@osuosl.org On Behalf Of Jedrzej Jagielski Sent: Thursday, August 28, 2025 11:52 AM To: intel-wired-lan@lists.osuosl.org Cc: Nguyen, Anthony L anthony.l.nguyen@intel.com; netdev@vger.kernel.org; stable@vger.kernel.org; Jagielski, Jedrzej jedrzej.jagielski@intel.com; Kitszel, Przemyslaw przemyslaw.kitszel@intel.com; Loktionov, Aleksandr aleksandr.loktionov@intel.com Subject: [Intel-wired-lan] [PATCH iwl-net v1 1/4] ixgbevf: fix getting link speed data for E610 devices
E610 adapters no longer use the VFLINKS register to read PF's link speed and linkup state. As a result VF driver cannot get actual link state and it incorrectly reports 10G which is the default option. It leads to a situation where even 1G adapters print 10G as actual link speed. The same happens when PF driver set speed different than 10G.
Add new mailbox operation to let the VF driver request a PF driver to provide actual link data. Update the mailbox api to v1.6.
Incorporate both ways of getting link status within the legacy ixgbe_check_mac_link_vf() function.
Fixes: 4c44b450c69b ("ixgbevf: Add support for Intel(R) E610 device") Co-developed-by: Andrzej Wilczynski andrzejx.wilczynski@intel.com Signed-off-by: Andrzej Wilczynski andrzejx.wilczynski@intel.com Reviewed-by: Przemek Kitszel przemyslaw.kitszel@intel.com Reviewed-by: Aleksandr Loktionov aleksandr.loktionov@intel.com Cc: stable@vger.kernel.org Signed-off-by: Jedrzej Jagielski jedrzej.jagielski@intel.com
drivers/net/ethernet/intel/ixgbevf/defines.h | 1 + .../net/ethernet/intel/ixgbevf/ixgbevf_main.c | 6 +- drivers/net/ethernet/intel/ixgbevf/mbx.h | 4 + drivers/net/ethernet/intel/ixgbevf/vf.c | 137 ++++++++++++++---- 4 files changed, 116 insertions(+), 32 deletions(-)
diff --git a/drivers/net/ethernet/intel/ixgbevf/defines.h b/drivers/net/ethernet/intel/ixgbevf/defines.h index a9bc96f6399d..e177d1d58696 100644 --- a/drivers/net/ethernet/intel/ixgbevf/defines.h +++ b/drivers/net/ethernet/intel/ixgbevf/defines.h @@ -28,6 +28,7 @@
Tested-by: Rafal Romanowski rafal.romanowski@intel.com