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Subject[PATCH net-next 1/2] cxgb3: move away from LLTX
Date
From: Divy Le Ray <divy@chelsio.com>

cxgb3 no longer advertizes LLTX.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
---
drivers/net/cxgb3/cxgb3_main.c | 1 -
drivers/net/cxgb3/sge.c | 18 +++++++-----------
2 files changed, 7 insertions(+), 12 deletions(-)

diff --git a/drivers/net/cxgb3/cxgb3_main.c b/drivers/net/cxgb3/cxgb3_main.c
index 0b87fee..1fe4b07 100644
--- a/drivers/net/cxgb3/cxgb3_main.c
+++ b/drivers/net/cxgb3/cxgb3_main.c
@@ -3059,7 +3059,6 @@ static int __devinit init_one(struct pci_dev *pdev,
netdev->mem_start = mmio_start;
netdev->mem_end = mmio_start + mmio_len - 1;
netdev->features |= NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO;
- netdev->features |= NETIF_F_LLTX;
netdev->features |= NETIF_F_GRO;
if (pci_using_dac)
netdev->features |= NETIF_F_HIGHDMA;
diff --git a/drivers/net/cxgb3/sge.c b/drivers/net/cxgb3/sge.c
index 73d569e..0b97882 100644
--- a/drivers/net/cxgb3/sge.c
+++ b/drivers/net/cxgb3/sge.c
@@ -1241,7 +1241,6 @@ int t3_eth_xmit(struct sk_buff *skb, struct net_device *dev)
q = &qs->txq[TXQ_ETH];
txq = netdev_get_tx_queue(dev, qidx);

- spin_lock(&q->lock);
reclaim_completed_tx(adap, q, TX_RECLAIM_CHUNK);

credits = q->size - q->in_use;
@@ -1252,7 +1251,6 @@ int t3_eth_xmit(struct sk_buff *skb, struct net_device *dev)
dev_err(&adap->pdev->dev,
"%s: Tx ring %u full while queue awake!\n",
dev->name, q->cntxt_id & 7);
- spin_unlock(&q->lock);
return NETDEV_TX_BUSY;
}

@@ -1286,9 +1284,6 @@ int t3_eth_xmit(struct sk_buff *skb, struct net_device *dev)
if (vlan_tx_tag_present(skb) && pi->vlan_grp)
qs->port_stats[SGE_PSTAT_VLANINS]++;

- dev->trans_start = jiffies;
- spin_unlock(&q->lock);
-
/*
* We do not use Tx completion interrupts to free DMAd Tx packets.
* This is good for performamce but means that we rely on new Tx
@@ -2858,11 +2853,12 @@ static void sge_timer_tx(unsigned long data)
unsigned int tbd[SGE_TXQ_PER_SET] = {0, 0};
unsigned long next_period;

- if (spin_trylock(&qs->txq[TXQ_ETH].lock)) {
- tbd[TXQ_ETH] = reclaim_completed_tx(adap, &qs->txq[TXQ_ETH],
- TX_RECLAIM_TIMER_CHUNK);
- spin_unlock(&qs->txq[TXQ_ETH].lock);
+ if (__netif_tx_trylock(qs->tx_q)) {
+ tbd[TXQ_ETH] = reclaim_completed_tx(adap, &qs->txq[TXQ_ETH],
+ TX_RECLAIM_TIMER_CHUNK);
+ __netif_tx_unlock(qs->tx_q);
}
+
if (spin_trylock(&qs->txq[TXQ_OFLD].lock)) {
tbd[TXQ_OFLD] = reclaim_completed_tx(adap, &qs->txq[TXQ_OFLD],
TX_RECLAIM_TIMER_CHUNK);
@@ -2870,8 +2866,8 @@ static void sge_timer_tx(unsigned long data)
}

next_period = TX_RECLAIM_PERIOD >>
- (max(tbd[TXQ_ETH], tbd[TXQ_OFLD]) /
- TX_RECLAIM_TIMER_CHUNK);
+ (max(tbd[TXQ_ETH], tbd[TXQ_OFLD]) /
+ TX_RECLAIM_TIMER_CHUNK);
mod_timer(&qs->tx_reclaim_timer, jiffies + next_period);
}



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