[PATCH] chelsio: transmit routine return values
The Chelsio driver does not return the correct values from
the transmit routine. It works because the values don't conflict,
but it is using the wrong defines. And -ENOMEM is not a legal return
value.
Since t1_sge_tx is only called in one place, making it static
allows compiler to be potentially inline it.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
diff --git a/drivers/net/chelsio/sge.c b/drivers/net/chelsio/sge.c
index 53b41d9..2c5b849 100644
--- a/drivers/net/chelsio/sge.c
+++ b/drivers/net/chelsio/sge.c
@@ -1332,8 +1332,8 @@
*
* This runs with softirqs disabled.
*/
-unsigned int t1_sge_tx(struct sk_buff *skb, struct adapter *adapter,
- unsigned int qid, struct net_device *dev)
+static int t1_sge_tx(struct sk_buff *skb, struct adapter *adapter,
+ unsigned int qid, struct net_device *dev)
{
struct sge *sge = adapter->sge;
struct cmdQ *q = &sge->cmdQ[qid];
@@ -1352,9 +1352,10 @@
set_bit(dev->if_port, &sge->stopped_tx_queues);
sge->stats.cmdQ_full[3]++;
spin_unlock(&q->lock);
- CH_ERR("%s: Tx ring full while queue awake!\n",
- adapter->name);
- return 1;
+ if (!netif_queue_stopped(dev))
+ CH_ERR("%s: Tx ring full while queue awake!\n",
+ adapter->name);
+ return NETDEV_TX_BUSY;
}
if (unlikely(credits - count < q->stop_thres)) {
sge->stats.cmdQ_full[3]++;
@@ -1389,7 +1390,7 @@
writel(F_CMDQ0_ENABLE, adapter->regs + A_SG_DOORBELL);
}
}
- return 0;
+ return NETDEV_TX_OK;
}
#define MK_ETH_TYPE_MSS(type, mss) (((mss) & 0x3FFF) | ((type) << 14))
@@ -1449,7 +1450,7 @@
if (unlikely(skb->len < ETH_HLEN ||
skb->len > dev->mtu + eth_hdr_len(skb->data))) {
dev_kfree_skb_any(skb);
- return NET_XMIT_SUCCESS;
+ return NETDEV_TX_OK;
}
/*
@@ -1467,7 +1468,7 @@
skb = skb_realloc_headroom(skb, sizeof(*cpl));
dev_kfree_skb_any(orig_skb);
if (!skb)
- return -ENOMEM;
+ return NETDEV_TX_OK;
}
if (!(adapter->flags & UDP_CSUM_CAPABLE) &&
@@ -1475,7 +1476,7 @@
skb->nh.iph->protocol == IPPROTO_UDP)
if (unlikely(skb_checksum_help(skb, 0))) {
dev_kfree_skb_any(skb);
- return -ENOMEM;
+ return NETDEV_TX_OK;
}
/* Hmmm, assuming to catch the gratious arp... and we'll use
diff --git a/drivers/net/chelsio/sge.h b/drivers/net/chelsio/sge.h
index 434b255..6d0d24a 100644
--- a/drivers/net/chelsio/sge.h
+++ b/drivers/net/chelsio/sge.h
@@ -89,8 +89,6 @@
int t1_sge_set_coalesce_params(struct sge *, struct sge_params *);
void t1_sge_destroy(struct sge *);
intr_handler_t t1_select_intr_handler(adapter_t *adapter);
-unsigned int t1_sge_tx(struct sk_buff *skb, struct adapter *adapter,
- unsigned int qid, struct net_device *netdev);
int t1_start_xmit(struct sk_buff *skb, struct net_device *dev);
void t1_set_vlan_accel(struct adapter *adapter, int on_off);
void t1_sge_start(struct sge *);