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Date: Tue, 23 Jan 2018 07:24:00 -0800 From: Tonghao Zhang <xiangxia.m.yue@...il.com> To: jeffrey.t.kirsher@...el.com Cc: netdev@...r.kernel.org, Tonghao Zhang <xiangxia.m.yue@...il.com> Subject: [PATCH 1/2] ixgbe: Avoid to write the RETA table when unnecessary. 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@...il.com> --- drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c index 0aaf70b..0f1d642 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c @@ -3060,6 +3060,8 @@ static int ixgbe_set_rxfh(struct net_device *netdev, const u32 *indir, for (i = 0; i < reta_entries; i++) adapter->rss_indir_tbl[i] = indir[i]; + + ixgbe_store_reta(adapter); } /* Fill out the rss hash key */ @@ -3068,7 +3070,6 @@ static int ixgbe_set_rxfh(struct net_device *netdev, const u32 *indir, ixgbe_store_key(adapter); } - ixgbe_store_reta(adapter); return 0; } -- 1.8.3.1
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