net/xen-netback/xenbus.c

14 			      struct xenvif_queue *queue);
28 	struct xenvif_queue *queue = m->private;
29 	struct xen_netif_tx_back_ring *tx_ring = &queue->tx;
30 	struct xen_netif_rx_back_ring *rx_ring = &queue->rx;
36 		seq_printf(m, "Queue %d\nTX: nr_ents %u\n", queue->id,
52 			   queue->pending_prod,
53 			   queue->pending_cons,
54 			   nr_pending_reqs(queue));
56 			   queue->dealloc_prod,
57 			   queue->dealloc_cons,
58 			   queue->dealloc_prod - queue->dealloc_cons);
80 	seq_printf(m, "NAPI state: %lx NAPI weight: %d TX queue len %u\n"
83 		   queue->napi.state, queue->napi.weight,
84 		   skb_queue_len(&queue->tx_queue),
85 		   timer_pending(&queue->credit_timeout),
86 		   queue->credit_bytes,
87 		   queue->credit_usec,
88 		   queue->remaining_credit,
89 		   queue->credit_timeout.expires,
92 	dev_queue = netdev_get_tx_queue(queue->vif->dev, queue->id);
94 	seq_printf(m, "\nRx internal queue: len %u max %u pkts %u %s\n",
95 		   queue->rx_queue_len, queue->rx_queue_max,
96 		   skb_queue_len(&queue->rx_queue),
109 	struct xenvif_queue *queue =
131 		xenvif_interrupt(0, (void *)queue);
134 			queue->id);
143 	void *queue = NULL;
146 		queue = inode->i_private;
147 	ret = single_open(filp, xenvif_read_io_ring, queue);
534 		struct xenvif_queue *queue = &vif->queues[queue_index];
536 		queue->credit_bytes = credit_bytes;
537 		queue->credit_usec = credit_usec;
538 		if (!mod_timer_pending(&queue->credit_timeout, jiffies) &&
539 			queue->remaining_credit > queue->credit_bytes) {
540 			queue->remaining_credit = queue->credit_bytes;
731 	struct xenvif_queue *queue;
737 					"multi-queue-num-queues", 1);
776 		queue = &be->vif->queues[queue_index];
777 		queue->vif = be->vif;
778 		queue->id = queue_index;
779 		snprintf(queue->name, sizeof(queue->name), "%s-q%u",
780 				be->vif->dev->name, queue->id);
782 		err = xenvif_init_queue(queue);
794 		queue->credit_bytes = credit_bytes;
795 		queue->remaining_credit = credit_bytes;
796 		queue->credit_usec = credit_usec;
798 		err = connect_data_rings(be, queue);
805 			xenvif_deinit_queue(queue);
850 			      struct xenvif_queue *queue)
853 	unsigned int num_queues = queue->vif->num_queues;
859 	const size_t xenstore_path_ext_size = 11; /* sufficient for "/queue-NNN" */
861 	/* If the frontend requested 1 queue, or we have fallen back
862 	 * to single queue due to lack of frontend support for multi-
863 	 * queue, expect the remaining XenStore keys in the toplevel
865 	 * queue-N.
882 		snprintf(xspath, xspathsize, "%s/queue-%u", dev->otherend,
883 			 queue->id);
913 	err = xenvif_connect_data(queue, tx_ring_ref, rx_ring_ref,
1118 	/* Multi-queue support: This is an optional feature. */
1120 			    "multi-queue-max-queues", "%u", xenvif_max_queues);
1122 		pr_debug("Error writing multi-queue-max-queues\n");