790 static void igb_assign_vector(struct igb_q_vector *q_vector, int msix_vector)  in igb_assign_vector()  argument
792 	struct igb_adapter *adapter = q_vector->adapter;  in igb_assign_vector()
798 	if (q_vector->rx.ring)  in igb_assign_vector()
799 		rx_queue = q_vector->rx.ring->reg_idx;  in igb_assign_vector()
800 	if (q_vector->tx.ring)  in igb_assign_vector()
801 		tx_queue = q_vector->tx.ring->reg_idx;  in igb_assign_vector()
817 		q_vector->eims_value = msixbm;  in igb_assign_vector()
833 		q_vector->eims_value = BIT(msix_vector);  in igb_assign_vector()
854 		q_vector->eims_value = BIT(msix_vector);  in igb_assign_vector()
862 	adapter->eims_enable_mask |= q_vector->eims_value;  in igb_assign_vector()
865 	q_vector->set_itr = 1;  in igb_assign_vector()
929 		igb_assign_vector(adapter->q_vector[i], vector++);  in igb_configure_msix()
952 		struct igb_q_vector *q_vector = adapter->q_vector[i];  in igb_request_msix()  local
956 		q_vector->itr_register = adapter->io_addr + E1000_EITR(vector);  in igb_request_msix()
958 		if (q_vector->rx.ring && q_vector->tx.ring)  in igb_request_msix()
959 			sprintf(q_vector->name, "%s-TxRx-%u", netdev->name,  in igb_request_msix()
960 				q_vector->rx.ring->queue_index);  in igb_request_msix()
961 		else if (q_vector->tx.ring)  in igb_request_msix()
962 			sprintf(q_vector->name, "%s-tx-%u", netdev->name,  in igb_request_msix()
963 				q_vector->tx.ring->queue_index);  in igb_request_msix()
964 		else if (q_vector->rx.ring)  in igb_request_msix()
965 			sprintf(q_vector->name, "%s-rx-%u", netdev->name,  in igb_request_msix()
966 				q_vector->rx.ring->queue_index);  in igb_request_msix()
968 			sprintf(q_vector->name, "%s-unused", netdev->name);  in igb_request_msix()
971 				  igb_msix_ring, 0, q_vector->name,  in igb_request_msix()
972 				  q_vector);  in igb_request_msix()
987 			 adapter->q_vector[i]);  in igb_request_msix()
1002 	struct igb_q_vector *q_vector = adapter->q_vector[v_idx];  in igb_free_q_vector()  local
1004 	adapter->q_vector[v_idx] = NULL;  in igb_free_q_vector()
1009 	if (q_vector)  in igb_free_q_vector()
1010 		kfree_rcu(q_vector, rcu);  in igb_free_q_vector()
1023 	struct igb_q_vector *q_vector = adapter->q_vector[v_idx];  in igb_reset_q_vector()  local
1028 	if (!q_vector)  in igb_reset_q_vector()
1031 	if (q_vector->tx.ring)  in igb_reset_q_vector()
1032 		adapter->tx_ring[q_vector->tx.ring->queue_index] = NULL;  in igb_reset_q_vector()
1034 	if (q_vector->rx.ring)  in igb_reset_q_vector()
1035 		adapter->rx_ring[q_vector->rx.ring->queue_index] = NULL;  in igb_reset_q_vector()
1037 	netif_napi_del(&q_vector->napi);  in igb_reset_q_vector()
1192 	struct igb_q_vector *q_vector;  in igb_alloc_q_vector()  local
1202 	size = struct_size(q_vector, ring, ring_count);  in igb_alloc_q_vector()
1205 	q_vector = adapter->q_vector[v_idx];  in igb_alloc_q_vector()
1206 	if (!q_vector) {  in igb_alloc_q_vector()
1207 		q_vector = kzalloc(size, GFP_KERNEL);  in igb_alloc_q_vector()
1208 	} else if (size > ksize(q_vector)) {  in igb_alloc_q_vector()
1209 		kfree_rcu(q_vector, rcu);  in igb_alloc_q_vector()
1210 		q_vector = kzalloc(size, GFP_KERNEL);  in igb_alloc_q_vector()
1212 		memset(q_vector, 0, size);  in igb_alloc_q_vector()
1214 	if (!q_vector)  in igb_alloc_q_vector()
1218 	netif_napi_add(adapter->netdev, &q_vector->napi,  in igb_alloc_q_vector()
1222 	adapter->q_vector[v_idx] = q_vector;  in igb_alloc_q_vector()
1223 	q_vector->adapter = adapter;  in igb_alloc_q_vector()
1226 	q_vector->tx.work_limit = adapter->tx_work_limit;  in igb_alloc_q_vector()
1229 	q_vector->itr_register = adapter->io_addr + E1000_EITR(0);  in igb_alloc_q_vector()
1230 	q_vector->itr_val = IGB_START_ITR;  in igb_alloc_q_vector()
1233 	ring = q_vector->ring;  in igb_alloc_q_vector()
1239 			q_vector->itr_val = adapter->rx_itr_setting;  in igb_alloc_q_vector()
1243 			q_vector->itr_val = adapter->tx_itr_setting;  in igb_alloc_q_vector()
1252 		ring->q_vector = q_vector;  in igb_alloc_q_vector()
1255 		igb_add_ring(ring, &q_vector->tx);  in igb_alloc_q_vector()
1287 		ring->q_vector = q_vector;  in igb_alloc_q_vector()
1290 		igb_add_ring(ring, &q_vector->rx);  in igb_alloc_q_vector()
1435 	igb_assign_vector(adapter->q_vector[0], 0);  in igb_request_irq()
1468 				 adapter->q_vector[i]);  in igb_free_irq()
2131 		napi_enable(&(adapter->q_vector[i]->napi));  in igb_up()
2136 		igb_assign_vector(adapter->q_vector[0], 0);  in igb_up()
2199 		if (adapter->q_vector[i]) {  in igb_down()
2200 			napi_synchronize(&adapter->q_vector[i]->napi);  in igb_down()
2201 			napi_disable(&adapter->q_vector[i]->napi);  in igb_down()
3945 		napi_enable(&(adapter->q_vector[i]->napi));  in __igb_open()
5415 			eics |= adapter->q_vector[i]->eims_value;  in igb_watchdog_task()
5463 static void igb_update_ring_itr(struct igb_q_vector *q_vector)  in igb_update_ring_itr()  argument
5465 	int new_val = q_vector->itr_val;  in igb_update_ring_itr()
5467 	struct igb_adapter *adapter = q_vector->adapter;  in igb_update_ring_itr()
5478 	packets = q_vector->rx.total_packets;  in igb_update_ring_itr()
5480 		avg_wire_size = q_vector->rx.total_bytes / packets;  in igb_update_ring_itr()
5482 	packets = q_vector->tx.total_packets;  in igb_update_ring_itr()
5485 				      q_vector->tx.total_bytes / packets);  in igb_update_ring_itr()
5505 	    ((q_vector->rx.ring && adapter->rx_itr_setting == 3) ||  in igb_update_ring_itr()
5506 	     (!q_vector->rx.ring && adapter->tx_itr_setting == 3)))  in igb_update_ring_itr()
5510 	if (new_val != q_vector->itr_val) {  in igb_update_ring_itr()
5511 		q_vector->itr_val = new_val;  in igb_update_ring_itr()
5512 		q_vector->set_itr = 1;  in igb_update_ring_itr()
5515 	q_vector->rx.total_bytes = 0;  in igb_update_ring_itr()
5516 	q_vector->rx.total_packets = 0;  in igb_update_ring_itr()
5517 	q_vector->tx.total_bytes = 0;  in igb_update_ring_itr()
5518 	q_vector->tx.total_packets = 0;  in igb_update_ring_itr()
5537 static void igb_update_itr(struct igb_q_vector *q_vector,  in igb_update_itr()  argument
5589 static void igb_set_itr(struct igb_q_vector *q_vector)  in igb_set_itr()  argument
5591 	struct igb_adapter *adapter = q_vector->adapter;  in igb_set_itr()
5592 	u32 new_itr = q_vector->itr_val;  in igb_set_itr()
5602 	igb_update_itr(q_vector, &q_vector->tx);  in igb_set_itr()
5603 	igb_update_itr(q_vector, &q_vector->rx);  in igb_set_itr()
5605 	current_itr = max(q_vector->rx.itr, q_vector->tx.itr);  in igb_set_itr()
5609 	    ((q_vector->rx.ring && adapter->rx_itr_setting == 3) ||  in igb_set_itr()
5610 	     (!q_vector->rx.ring && adapter->tx_itr_setting == 3)))  in igb_set_itr()
5629 	if (new_itr != q_vector->itr_val) {  in igb_set_itr()
5634 		new_itr = new_itr > q_vector->itr_val ?  in igb_set_itr()
5635 			  max((new_itr * q_vector->itr_val) /  in igb_set_itr()
5636 			  (new_itr + (q_vector->itr_val >> 2)),  in igb_set_itr()
5644 		q_vector->itr_val = new_itr;  in igb_set_itr()
5645 		q_vector->set_itr = 1;  in igb_set_itr()
6560 static void igb_write_itr(struct igb_q_vector *q_vector)  in igb_write_itr()  argument
6562 	struct igb_adapter *adapter = q_vector->adapter;  in igb_write_itr()
6563 	u32 itr_val = q_vector->itr_val & 0x7FFC;  in igb_write_itr()
6565 	if (!q_vector->set_itr)  in igb_write_itr()
6576 	writel(itr_val, q_vector->itr_register);  in igb_write_itr()
6577 	q_vector->set_itr = 0;  in igb_write_itr()
6582 	struct igb_q_vector *q_vector = data;  in igb_msix_ring()  local
6585 	igb_write_itr(q_vector);  in igb_msix_ring()
6587 	napi_schedule(&q_vector->napi);  in igb_msix_ring()
6634 static void igb_update_dca(struct igb_q_vector *q_vector)  in igb_update_dca()  argument
6636 	struct igb_adapter *adapter = q_vector->adapter;  in igb_update_dca()
6639 	if (q_vector->cpu == cpu)  in igb_update_dca()
6642 	if (q_vector->tx.ring)  in igb_update_dca()
6643 		igb_update_tx_dca(adapter, q_vector->tx.ring, cpu);  in igb_update_dca()
6645 	if (q_vector->rx.ring)  in igb_update_dca()
6646 		igb_update_rx_dca(adapter, q_vector->rx.ring, cpu);  in igb_update_dca()
6648 	q_vector->cpu = cpu;  in igb_update_dca()
6665 		adapter->q_vector[i]->cpu = -1;  in igb_setup_dca()
6666 		igb_update_dca(adapter->q_vector[i]);  in igb_setup_dca()
7601 	struct igb_q_vector *q_vector = adapter->q_vector[0];  in igb_intr_msi()  local
7606 	igb_write_itr(q_vector);  in igb_intr_msi()
7625 	napi_schedule(&q_vector->napi);  in igb_intr_msi()
7638 	struct igb_q_vector *q_vector = adapter->q_vector[0];  in igb_intr()  local
7651 	igb_write_itr(q_vector);  in igb_intr()
7671 	napi_schedule(&q_vector->napi);  in igb_intr()
7676 static void igb_ring_irq_enable(struct igb_q_vector *q_vector)  in igb_ring_irq_enable()  argument
7678 	struct igb_adapter *adapter = q_vector->adapter;  in igb_ring_irq_enable()
7681 	if ((q_vector->rx.ring && (adapter->rx_itr_setting & 3)) ||  in igb_ring_irq_enable()
7682 	    (!q_vector->rx.ring && (adapter->tx_itr_setting & 3))) {  in igb_ring_irq_enable()
7684 			igb_set_itr(q_vector);  in igb_ring_irq_enable()
7686 			igb_update_ring_itr(q_vector);  in igb_ring_irq_enable()
7691 			wr32(E1000_EIMS, q_vector->eims_value);  in igb_ring_irq_enable()
7704 	struct igb_q_vector *q_vector = container_of(napi,  in igb_poll()  local
7711 	if (q_vector->adapter->flags & IGB_FLAG_DCA_ENABLED)  in igb_poll()
7712 		igb_update_dca(q_vector);  in igb_poll()
7714 	if (q_vector->tx.ring)  in igb_poll()
7715 		clean_complete = igb_clean_tx_irq(q_vector, budget);  in igb_poll()
7717 	if (q_vector->rx.ring) {  in igb_poll()
7718 		int cleaned = igb_clean_rx_irq(q_vector, budget);  in igb_poll()
7733 		igb_ring_irq_enable(q_vector);  in igb_poll()
7745 static bool igb_clean_tx_irq(struct igb_q_vector *q_vector, int napi_budget)  in igb_clean_tx_irq()  argument
7747 	struct igb_adapter *adapter = q_vector->adapter;  in igb_clean_tx_irq()
7748 	struct igb_ring *tx_ring = q_vector->tx.ring;  in igb_clean_tx_irq()
7752 	unsigned int budget = q_vector->tx.work_limit;  in igb_clean_tx_irq()
7841 	q_vector->tx.total_bytes += total_bytes;  in igb_clean_tx_irq()
7842 	q_vector->tx.total_packets += total_packets;  in igb_clean_tx_irq()
8027 	skb = napi_alloc_skb(&rx_ring->q_vector->napi, IGB_RX_HDR_LEN);  in igb_construct_skb()
8032 		igb_ptp_rx_pktstamp(rx_ring->q_vector, va, skb);  in igb_construct_skb()
8094 		igb_ptp_rx_pktstamp(rx_ring->q_vector, skb->data, skb);  in igb_build_skb()
8242 		igb_ptp_rx_rgtstamp(rx_ring->q_vector, skb);  in igb_process_skb_fields()
8303 static int igb_clean_rx_irq(struct igb_q_vector *q_vector, const int budget)  in igb_clean_rx_irq()  argument
8305 	struct igb_ring *rx_ring = q_vector->rx.ring;  in igb_clean_rx_irq()
8369 		napi_gro_receive(&q_vector->napi, skb);  in igb_clean_rx_irq()
8385 	q_vector->rx.total_packets += total_packets;  in igb_clean_rx_irq()
8386 	q_vector->rx.total_bytes += total_bytes;  in igb_clean_rx_irq()