mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-11 11:09:13 +00:00
Code Issues Releases Wiki Activity

net: stmmac: Send TSO packets always from Queue 0

Browse source 
[ Upstream commit c5acdbee22 ]

The number of TSO enabled channels in HW can be different than the
number of total channels. There is no way to determined, at runtime, the
number of TSO capable channels and its safe to assume that if TSO is
enabled then at least channel 0 will be TSO capable.

Lets always send TSO packets from Queue 0.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jose Abreu 2019-01-30 15:54:20 +01:00 committed by Greg Kroah-Hartman
parent 46ba03c591
commit 496eaed7fe
1 changed files with 10 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

11
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
View file

@ -3030,8 +3030,17 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev)
/* Manage oversized TCP frames for GMAC4 device */
if (skb_is_gso(skb) && priv->tso) {
if (skb_shinfo(skb)->gso_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6))
if (skb_shinfo(skb)->gso_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)) {
/*
* There is no way to determine the number of TSO
* capable Queues. Let's use always the Queue 0
* because if TSO is supported then at least this
* one will be capable.
*/
skb_set_queue_mapping(skb, 0);
return stmmac_tso_xmit(skb, dev);
}
}
if (unlikely(stmmac_tx_avail(priv, queue) < nfrags + 1)) {