diff options
| author | Giuseppe Cavallaro <peppe.cavallaro@st.com> | 2016-02-29 13:27:33 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-03-02 19:21:31 (GMT) |
| commit | 96951366ce8546662de56f58a3885b94326f9670 (patch) | |
| tree | 795934ecd0893d40a9e161a4cbd25f7221257292 /drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | |
| parent | 2a6d8e172639b49a81afc76140dd7ee7c9a24da1 (diff) | |
| download | linux-96951366ce8546662de56f58a3885b94326f9670.tar.xz | |
stmmac: add is_jumbo field to dma data
Optimize tx_clean by avoiding a des3 read in stmmac_clean_desc3().
In ring mode, TX, des3 seems only used when xmit a jumbo frame.
In case of normal descriptors, it may also be used for time
stamping.
Clean it in the above two case, without reading it.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/stmmac_main.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index feae0de..0194a8f 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -1361,6 +1361,7 @@ static void stmmac_tx_clean(struct stmmac_priv *priv) } priv->hw->mode->clean_desc3(priv, p); priv->tx_skbuff_dma[entry].last_segment = false; + priv->tx_skbuff_dma[entry].is_jumbo = false; if (likely(skb != NULL)) { pkts_compl++; |