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ixgbe: never generate both software and hardware timestamps 

skb_tx_timestamp() does not report software time stamp
if SKBTX_IN_PROGRESS is set. According to timestamping.txt
software time stamps are a fallback and should not be
generated if hardware time stamp is provided.

Move call to skb_tx_timestamp() after setting
SKBTX_IN_PROGRESS.

Signed-off-by: Jakub Kicinski <kubakici@wp.pl>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
hifive-unleashed-5.1
Jakub Kicinski 2014-03-15 14:55:16 +00:00 committed by Jeff Kirsher
parent 181e7d5d7b
commit ff29a86ec9
1 changed files with 2 additions and 2 deletions
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4
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
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@ -7042,8 +7042,6 @@ netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb,
tx_flags |= IXGBE_TX_FLAGS_SW_VLAN;
}
skb_tx_timestamp(skb);
if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)) {
skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
tx_flags |= IXGBE_TX_FLAGS_TSTAMP;
@ -7054,6 +7052,8 @@ netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb,
schedule_work(&adapter->ptp_tx_work);
}
skb_tx_timestamp(skb);
#ifdef CONFIG_PCI_IOV
/*
* Use the l2switch_enable flag - would be false if the DMA