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i40e: never generate both software and hardware timestamps

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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: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Jakub Kicinski 2014-03-15 14:55:37 +00:00 committed by Jeff Kirsher
parent 1f224ad2f7
commit 259afec7c3
1 changed files with 2 additions and 2 deletions
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4
drivers/net/ethernet/intel/i40e/i40e_txrx.c
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@ -2285,13 +2285,13 @@ static netdev_tx_t i40e_xmit_frame_ring(struct sk_buff *skb,
else if (tso)
tx_flags |= I40E_TX_FLAGS_TSO;
skb_tx_timestamp(skb);
tsyn = i40e_tsyn(tx_ring, skb, tx_flags, &cd_type_cmd_tso_mss);
if (tsyn)
tx_flags |= I40E_TX_FLAGS_TSYN;
skb_tx_timestamp(skb);
/* always enable CRC insertion offload */
td_cmd |= I40E_TX_DESC_CMD_ICRC;