From: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Date: Sun, 28 Jan 2018 03:53:37 -0800
Subject: ixgbe: Avoid to write the RETA table when unnecessary
Patch-mainline: v4.17-rc1
Git-commit: 60f4b645492592501868c4b7a361f3f972b73196
References: bsc#1101674 FATE#325150 FATE#325151
If indir == 0 in the ixgbe_set_rxfh(), it is unnecessary
to write the HW. Because redirection table is not changed.
Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
@@ -3053,6 +3053,8 @@ static int ixgbe_set_rxfh(struct net_dev
for (i = 0; i < reta_entries; i++)
adapter->rss_indir_tbl[i] = indir[i];
+
+ ixgbe_store_reta(adapter);
}
/* Fill out the rss hash key */
@@ -3061,8 +3063,6 @@ static int ixgbe_set_rxfh(struct net_dev
ixgbe_store_key(adapter);
}
- ixgbe_store_reta(adapter);
-
return 0;
}