[PATCH net-next v3 1/3] queue_api: add subqueue variant netif_subqueue_sent

[Gur Stavi]

Add a new function, netif_subqueue_sent, which is a wrapper for
netdev_tx_sent_queue.

Drivers that use the subqueue variant macros, netif_subqueue_xxx,
identify queue by index and are not required to obtain
struct netdev_queue explicitly.

Such drivers still need to call netdev_tx_sent_queue which is a
counterpart of netif_subqueue_completed_wake. Allowing drivers to use a
subqueue variant for this purpose improves their code consistency by
always referring to queue by its index.

Signed-off-by: Gur Stavi <gur.stavi@xxxxxxxxxx>
---
 include/net/netdev_queues.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/include/net/netdev_queues.h b/include/net/netdev_queues.h
index ba2eaf39089b..6e835972abd1 100644
--- a/include/net/netdev_queues.h
+++ b/include/net/netdev_queues.h
@@ -294,6 +294,15 @@ netdev_txq_completed_mb(struct netdev_queue *dev_queue,
 		netif_txq_try_stop(_txq, get_desc, start_thrs);		\
 	})
 
+static inline void netif_subqueue_sent(const struct net_device *dev,
+				       unsigned int idx, unsigned int bytes)
+{
+	struct netdev_queue *txq;
+
+	txq = netdev_get_tx_queue(dev, idx);
+	netdev_tx_sent_queue(txq, bytes);
+}
+
 #define netif_subqueue_maybe_stop(dev, idx, get_desc, stop_thrs, start_thrs) \
 	({								\
 		struct netdev_queue *_txq;				\
-- 
2.45.2