fm10k: Reset multicast mode when deleting lport

Deleting lport when multicast mode is configured to
FM10K_XCAST_MODE_ALLMULTI or FM10K_XCAST_MODE_PROMISC will result in
generating orphaned multicast-group entries in the switch manager.
Before deleting the lport, reset multicast mode to FM10K_XCAST_MODE_NONE
to flush out these multicast-group entries.

Signed-off-by: Ngai-Mint Kwan <ngai-mint.kwan@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_pf.c b/drivers/net/ethernet/intel/fm10k/fm10k_pf.c
index 88d5acf..2105cb8 100644 (file)
--- a/drivers/net/ethernet/intel/fm10k/fm10k_pf.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_pf.c
@@ -488,6 +488,10 @@ static s32 fm10k_update_lport_state_pf(struct fm10k_hw *hw, u16 glort,
        if (!fm10k_glort_valid_pf(hw, glort))
                return FM10K_ERR_PARAM;
 
+       /* reset multicast mode if deleting lport */
+       if (!enable)
+               fm10k_update_xcast_mode_pf(hw, glort, FM10K_XCAST_MODE_NONE);
+
        /* construct the lport message from the 2 pieces of data we have */
        lport_msg = ((u32)count << 16) | glort;