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-rw-r--r--drivers/net/ethernet/emulex/benet/be_main.c22
1 files changed, 18 insertions, 4 deletions
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 78beab560bc0..c1553fba7916 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -727,6 +727,21 @@ static u16 skb_ip_proto(struct sk_buff *skb)
ip_hdr(skb)->protocol : ipv6_hdr(skb)->nexthdr;
}
+static inline bool be_is_txq_full(struct be_tx_obj *txo)
+{
+ return atomic_read(&txo->q.used) + BE_MAX_TX_FRAG_COUNT >= txo->q.len;
+}
+
+static inline bool be_can_txq_wake(struct be_tx_obj *txo)
+{
+ return atomic_read(&txo->q.used) < txo->q.len / 2;
+}
+
+static inline bool be_is_tx_compl_pending(struct be_tx_obj *txo)
+{
+ return atomic_read(&txo->q.used) > txo->pend_wrb_cnt;
+}
+
static void be_get_wrb_params_from_skb(struct be_adapter *adapter,
struct sk_buff *skb,
struct be_wrb_params *wrb_params)
@@ -1134,7 +1149,6 @@ static netdev_tx_t be_xmit(struct sk_buff *skb, struct net_device *netdev)
u16 q_idx = skb_get_queue_mapping(skb);
struct be_tx_obj *txo = &adapter->tx_obj[q_idx];
struct be_wrb_params wrb_params = { 0 };
- struct be_queue_info *txq = &txo->q;
bool flush = !skb->xmit_more;
u16 wrb_cnt;
@@ -1150,7 +1164,7 @@ static netdev_tx_t be_xmit(struct sk_buff *skb, struct net_device *netdev)
goto drop;
}
- if ((atomic_read(&txq->used) + BE_MAX_TX_FRAG_COUNT) >= txq->len) {
+ if (be_is_txq_full(txo)) {
netif_stop_subqueue(netdev, q_idx);
tx_stats(txo)->tx_stops++;
}
@@ -2225,7 +2239,7 @@ static void be_tx_compl_clean(struct be_adapter *adapter)
atomic_sub(num_wrbs, &txq->used);
timeo = 0;
}
- if (atomic_read(&txq->used) == txo->pend_wrb_cnt)
+ if (!be_is_tx_compl_pending(txo))
pending_txqs--;
}
@@ -2638,7 +2652,7 @@ static void be_process_tx(struct be_adapter *adapter, struct be_tx_obj *txo,
/* As Tx wrbs have been freed up, wake up netdev queue
* if it was stopped due to lack of tx wrbs. */
if (__netif_subqueue_stopped(adapter->netdev, idx) &&
- atomic_read(&txo->q.used) < txo->q.len / 2) {
+ be_can_txq_wake(txo)) {
netif_wake_subqueue(adapter->netdev, idx);
}