1 // SPDX-License-Identifier: GPL-2.0
11  * __ice_vsi_get_qs_contig - Assign a contiguous chunk of queues to VSI
12  * @qs_cfg: gathered variables needed for PF->VSI queues assignment
14  * Return 0 on success and -ENOMEM in case of no left space in PF queue bitmap
20 	mutex_lock(qs_cfg->qs_mutex);  in __ice_vsi_get_qs_contig()
21 	offset = bitmap_find_next_zero_area(qs_cfg->pf_map, qs_cfg->pf_map_size,  in __ice_vsi_get_qs_contig()
22 					    0, qs_cfg->q_count, 0);  in __ice_vsi_get_qs_contig()
23 	if (offset >= qs_cfg->pf_map_size) {  in __ice_vsi_get_qs_contig()
24 		mutex_unlock(qs_cfg->qs_mutex);  in __ice_vsi_get_qs_contig()
25 		return -ENOMEM;  in __ice_vsi_get_qs_contig()
28 	bitmap_set(qs_cfg->pf_map, offset, qs_cfg->q_count);  in __ice_vsi_get_qs_contig()
29 	for (i = 0; i < qs_cfg->q_count; i++)  in __ice_vsi_get_qs_contig()
30 		qs_cfg->vsi_map[i + qs_cfg->vsi_map_offset] = (u16)(i + offset);  in __ice_vsi_get_qs_contig()
31 	mutex_unlock(qs_cfg->qs_mutex);  in __ice_vsi_get_qs_contig()
37  * __ice_vsi_get_qs_sc - Assign a scattered queues from PF to VSI
38  * @qs_cfg: gathered variables needed for pf->vsi queues assignment
40  * Return 0 on success and -ENOMEM in case of no left space in PF queue bitmap
46 	mutex_lock(qs_cfg->qs_mutex);  in __ice_vsi_get_qs_sc()
47 	for (i = 0; i < qs_cfg->q_count; i++) {  in __ice_vsi_get_qs_sc()
48 		index = find_next_zero_bit(qs_cfg->pf_map,  in __ice_vsi_get_qs_sc()
49 					   qs_cfg->pf_map_size, index);  in __ice_vsi_get_qs_sc()
50 		if (index >= qs_cfg->pf_map_size)  in __ice_vsi_get_qs_sc()
52 		set_bit(index, qs_cfg->pf_map);  in __ice_vsi_get_qs_sc()
53 		qs_cfg->vsi_map[i + qs_cfg->vsi_map_offset] = (u16)index;  in __ice_vsi_get_qs_sc()
55 	mutex_unlock(qs_cfg->qs_mutex);  in __ice_vsi_get_qs_sc()
60 		clear_bit(qs_cfg->vsi_map[index], qs_cfg->pf_map);  in __ice_vsi_get_qs_sc()
61 		qs_cfg->vsi_map[index + qs_cfg->vsi_map_offset] = 0;  in __ice_vsi_get_qs_sc()
63 	mutex_unlock(qs_cfg->qs_mutex);  in __ice_vsi_get_qs_sc()
65 	return -ENOMEM;  in __ice_vsi_get_qs_sc()
69  * ice_pf_rxq_wait - Wait for a PF's Rx queue to be enabled or disabled
76  * Returns -ETIMEDOUT in case of failing to reach the requested state after
84 		if (ena == !!(rd32(&pf->hw, QRX_CTRL(pf_q)) &  in ice_pf_rxq_wait()
91 	return -ETIMEDOUT;  in ice_pf_rxq_wait()
95  * ice_vsi_alloc_q_vector - Allocate memory for a single interrupt vector
100  * with this q_vector. If allocation fails we return -ENOMEM.
104 	struct ice_pf *pf = vsi->back;  in ice_vsi_alloc_q_vector()
111 		return -ENOMEM;  in ice_vsi_alloc_q_vector()
113 	q_vector->vsi = vsi;  in ice_vsi_alloc_q_vector()
114 	q_vector->v_idx = v_idx;  in ice_vsi_alloc_q_vector()
115 	q_vector->tx.itr_setting = ICE_DFLT_TX_ITR;  in ice_vsi_alloc_q_vector()
116 	q_vector->rx.itr_setting = ICE_DFLT_RX_ITR;  in ice_vsi_alloc_q_vector()
117 	q_vector->tx.itr_mode = ITR_DYNAMIC;  in ice_vsi_alloc_q_vector()
118 	q_vector->rx.itr_mode = ITR_DYNAMIC;  in ice_vsi_alloc_q_vector()
119 	q_vector->tx.type = ICE_TX_CONTAINER;  in ice_vsi_alloc_q_vector()
120 	q_vector->rx.type = ICE_RX_CONTAINER;  in ice_vsi_alloc_q_vector()
121 	q_vector->irq.index = -ENOENT;  in ice_vsi_alloc_q_vector()
123 	if (vsi->type == ICE_VSI_VF) {  in ice_vsi_alloc_q_vector()
124 		ice_calc_vf_reg_idx(vsi->vf, q_vector);  in ice_vsi_alloc_q_vector()
126 	} else if (vsi->type == ICE_VSI_CTRL && vsi->vf) {  in ice_vsi_alloc_q_vector()
130 			if (unlikely(!ctrl_vsi->q_vectors)) {  in ice_vsi_alloc_q_vector()
131 				err = -ENOENT;  in ice_vsi_alloc_q_vector()
135 			q_vector->irq = ctrl_vsi->q_vectors[0]->irq;  in ice_vsi_alloc_q_vector()
140 	q_vector->irq = ice_alloc_irq(pf, vsi->irq_dyn_alloc);  in ice_vsi_alloc_q_vector()
141 	if (q_vector->irq.index < 0) {  in ice_vsi_alloc_q_vector()
142 		err = -ENOMEM;  in ice_vsi_alloc_q_vector()
147 	q_vector->reg_idx = q_vector->irq.index;  in ice_vsi_alloc_q_vector()
148 	q_vector->vf_reg_idx = q_vector->irq.index;  in ice_vsi_alloc_q_vector()
152 		cpumask_set_cpu(v_idx, &q_vector->affinity_mask);  in ice_vsi_alloc_q_vector()
158 	if (vsi->netdev)  in ice_vsi_alloc_q_vector()
159 		netif_napi_add(vsi->netdev, &q_vector->napi, ice_napi_poll);  in ice_vsi_alloc_q_vector()
162 	/* tie q_vector and VSI together */  in ice_vsi_alloc_q_vector()
163 	vsi->q_vectors[v_idx] = q_vector;  in ice_vsi_alloc_q_vector()
174  * ice_free_q_vector - Free memory allocated for a specific interrupt vector
181 	struct ice_pf *pf = vsi->back;  in ice_free_q_vector()
187 	if (!vsi->q_vectors[v_idx]) {  in ice_free_q_vector()
191 	q_vector = vsi->q_vectors[v_idx];  in ice_free_q_vector()
193 	ice_for_each_tx_ring(tx_ring, vsi->q_vectors[v_idx]->tx)  in ice_free_q_vector()
194 		tx_ring->q_vector = NULL;  in ice_free_q_vector()
196 	ice_for_each_rx_ring(rx_ring, vsi->q_vectors[v_idx]->rx)  in ice_free_q_vector()
197 		rx_ring->q_vector = NULL;  in ice_free_q_vector()
200 	if (vsi->netdev)  in ice_free_q_vector()
201 		netif_napi_del(&q_vector->napi);  in ice_free_q_vector()
204 	if (q_vector->irq.index < 0)  in ice_free_q_vector()
208 	if (vsi->type == ICE_VSI_CTRL && vsi->vf &&  in ice_free_q_vector()
212 	ice_free_irq(pf, q_vector->irq);  in ice_free_q_vector()
216 	vsi->q_vectors[v_idx] = NULL;  in ice_free_q_vector()
220  * ice_cfg_itr_gran - set the ITR granularity to 2 usecs if not already set
243  * ice_calc_txq_handle - calculate the queue handle
252 	if (ring->ch)  in ice_calc_txq_handle()
253 		return ring->q_index - ring->ch->base_q;  in ice_calc_txq_handle()
259 	return ring->q_index - vsi->tc_cfg.tc_info[tc].qoffset;  in ice_calc_txq_handle()
263  * ice_cfg_xps_tx_ring - Configure XPS for a Tx ring
271 	if (!ring->q_vector || !ring->netdev)  in ice_cfg_xps_tx_ring()
275 	if (test_and_set_bit(ICE_TX_XPS_INIT_DONE, ring->xps_state))  in ice_cfg_xps_tx_ring()
278 	netif_set_xps_queue(ring->netdev, &ring->q_vector->affinity_mask,  in ice_cfg_xps_tx_ring()
279 			    ring->q_index);  in ice_cfg_xps_tx_ring()
283  * ice_setup_tx_ctx - setup a struct ice_tlan_ctx instance
293 	struct ice_vsi *vsi = ring->vsi;  in ice_setup_tx_ctx()
294 	struct ice_hw *hw = &vsi->back->hw;  in ice_setup_tx_ctx()
296 	tlan_ctx->base = ring->dma >> ICE_TLAN_CTX_BASE_S;  in ice_setup_tx_ctx()
298 	tlan_ctx->port_num = vsi->port_info->lport;  in ice_setup_tx_ctx()
301 	tlan_ctx->qlen = ring->count;  in ice_setup_tx_ctx()
303 	ice_set_cgd_num(tlan_ctx, ring->dcb_tc);  in ice_setup_tx_ctx()
306 	tlan_ctx->pf_num = hw->pf_id;  in ice_setup_tx_ctx()
310 	 * for vmvf_type = VF, it is VF number between 0-256  in ice_setup_tx_ctx()
311 	 * for vmvf_type = VM, it is VM number between 0-767  in ice_setup_tx_ctx()
314 	switch (vsi->type) {  in ice_setup_tx_ctx()
318 		if (ring->ch)  in ice_setup_tx_ctx()
319 			tlan_ctx->vmvf_type = ICE_TLAN_CTX_VMVF_TYPE_VMQ;  in ice_setup_tx_ctx()
321 			tlan_ctx->vmvf_type = ICE_TLAN_CTX_VMVF_TYPE_PF;  in ice_setup_tx_ctx()
325 		tlan_ctx->vmvf_num = hw->func_caps.vf_base_id + vsi->vf->vf_id;  in ice_setup_tx_ctx()
326 		tlan_ctx->vmvf_type = ICE_TLAN_CTX_VMVF_TYPE_VF;  in ice_setup_tx_ctx()
329 		tlan_ctx->vmvf_type = ICE_TLAN_CTX_VMVF_TYPE_VMQ;  in ice_setup_tx_ctx()
336 	if (ring->ch)  in ice_setup_tx_ctx()
337 		tlan_ctx->src_vsi = ring->ch->vsi_num;  in ice_setup_tx_ctx()
339 		tlan_ctx->src_vsi = ice_get_hw_vsi_num(hw, vsi->idx);  in ice_setup_tx_ctx()
342 	switch (vsi->type) {  in ice_setup_tx_ctx()
344 		tlan_ctx->tsyn_ena = 1;  in ice_setup_tx_ctx()
350 	tlan_ctx->tso_ena = ICE_TX_LEGACY;  in ice_setup_tx_ctx()
351 	tlan_ctx->tso_qnum = pf_q;  in ice_setup_tx_ctx()
357 	tlan_ctx->legacy_int = ICE_TX_LEGACY;  in ice_setup_tx_ctx()
361  * ice_rx_offset - Return expected offset into page to access data
374  * ice_setup_rx_ctx - Configure a receive ring context
381 	struct ice_vsi *vsi = ring->vsi;  in ice_setup_rx_ctx()
388 	hw = &vsi->back->hw;  in ice_setup_rx_ctx()
391 	pf_q = vsi->rxq_map[ring->q_index];  in ice_setup_rx_ctx()
400 	rlan_ctx.base = ring->dma >> ICE_RLAN_BASE_S;  in ice_setup_rx_ctx()
402 	rlan_ctx.qlen = ring->count;  in ice_setup_rx_ctx()
407 	rlan_ctx.dbuf = DIV_ROUND_UP(ring->rx_buf_len,  in ice_setup_rx_ctx()
416 	rlan_ctx.crcstrip = !(ring->flags & ICE_RX_FLAGS_CRC_STRIP_DIS);  in ice_setup_rx_ctx()
419 	 * and it needs to remain 1 for non-DVM capable configurations to not  in ice_setup_rx_ctx()
427 		if (vsi->type == ICE_VSI_VF &&  in ice_setup_rx_ctx()
428 		    ice_vf_is_port_vlan_ena(vsi->vf))  in ice_setup_rx_ctx()
445 	/* Max packet size for this queue - must not be set to a larger value  in ice_setup_rx_ctx()
448 	rlan_ctx.rxmax = min_t(u32, vsi->max_frame,  in ice_setup_rx_ctx()
449 			       ICE_MAX_CHAINED_RX_BUFS * ring->rx_buf_len);  in ice_setup_rx_ctx()
457 	if (ice_is_eswitch_mode_switchdev(vsi->back)) {  in ice_setup_rx_ctx()
458 		ring->flags |= ICE_RX_FLAGS_MULTIDEV;  in ice_setup_rx_ctx()
468 	if (vsi->type != ICE_VSI_VF)  in ice_setup_rx_ctx()
477 …dev_err(ice_pf_to_dev(vsi->back), "Failed to set LAN Rx queue context for absolute Rx queue %d err…  in ice_setup_rx_ctx()
479 		return -EIO;  in ice_setup_rx_ctx()
482 	if (vsi->type == ICE_VSI_VF)  in ice_setup_rx_ctx()
486 	if (!vsi->netdev || test_bit(ICE_FLAG_LEGACY_RX, vsi->back->flags))  in ice_setup_rx_ctx()
491 	ring->rx_offset = ice_rx_offset(ring);  in ice_setup_rx_ctx()
494 	ring->tail = hw->hw_addr + QRX_TAIL(pf_q);  in ice_setup_rx_ctx()
495 	writel(0, ring->tail);  in ice_setup_rx_ctx()
502 	void *ctx_ptr = &ring->pkt_ctx;  in ice_xsk_pool_fill_cb()
507 	desc.off = offsetof(struct ice_xdp_buff, pkt_ctx) -  in ice_xsk_pool_fill_cb()
510 	xsk_pool_fill_cb(ring->xsk_pool, &desc);  in ice_xsk_pool_fill_cb()
514  * ice_get_frame_sz - calculate xdp_buff::frame_sz
524 	frame_sz = rx_ring->rx_buf_len;  in ice_get_frame_sz()
533  * ice_vsi_cfg_rxq - Configure an Rx queue
540 	struct device *dev = ice_pf_to_dev(ring->vsi->back);  in ice_vsi_cfg_rxq()
544 	ring->rx_buf_len = ring->vsi->rx_buf_len;  in ice_vsi_cfg_rxq()
546 	if (ring->vsi->type == ICE_VSI_PF || ring->vsi->type == ICE_VSI_SF) {  in ice_vsi_cfg_rxq()
547 		if (!xdp_rxq_info_is_reg(&ring->xdp_rxq)) {  in ice_vsi_cfg_rxq()
548 			err = __xdp_rxq_info_reg(&ring->xdp_rxq, ring->netdev,  in ice_vsi_cfg_rxq()
549 						 ring->q_index,  in ice_vsi_cfg_rxq()
550 						 ring->q_vector->napi.napi_id,  in ice_vsi_cfg_rxq()
551 						 ring->rx_buf_len);  in ice_vsi_cfg_rxq()
557 		if (ring->xsk_pool) {  in ice_vsi_cfg_rxq()
558 			xdp_rxq_info_unreg(&ring->xdp_rxq);  in ice_vsi_cfg_rxq()
560 			ring->rx_buf_len =  in ice_vsi_cfg_rxq()
561 				xsk_pool_get_rx_frame_size(ring->xsk_pool);  in ice_vsi_cfg_rxq()
562 			err = __xdp_rxq_info_reg(&ring->xdp_rxq, ring->netdev,  in ice_vsi_cfg_rxq()
563 						 ring->q_index,  in ice_vsi_cfg_rxq()
564 						 ring->q_vector->napi.napi_id,  in ice_vsi_cfg_rxq()
565 						 ring->rx_buf_len);  in ice_vsi_cfg_rxq()
568 			err = xdp_rxq_info_reg_mem_model(&ring->xdp_rxq,  in ice_vsi_cfg_rxq()
573 			xsk_pool_set_rxq_info(ring->xsk_pool, &ring->xdp_rxq);  in ice_vsi_cfg_rxq()
577 				 ring->q_index);  in ice_vsi_cfg_rxq()
579 			if (!xdp_rxq_info_is_reg(&ring->xdp_rxq)) {  in ice_vsi_cfg_rxq()
580 				err = __xdp_rxq_info_reg(&ring->xdp_rxq, ring->netdev,  in ice_vsi_cfg_rxq()
581 							 ring->q_index,  in ice_vsi_cfg_rxq()
582 							 ring->q_vector->napi.napi_id,  in ice_vsi_cfg_rxq()
583 							 ring->rx_buf_len);  in ice_vsi_cfg_rxq()
588 			err = xdp_rxq_info_reg_mem_model(&ring->xdp_rxq,  in ice_vsi_cfg_rxq()
596 	xdp_init_buff(&ring->xdp, ice_get_frame_sz(ring), &ring->xdp_rxq);  in ice_vsi_cfg_rxq()
597 	ring->xdp.data = NULL;  in ice_vsi_cfg_rxq()
598 	ring->xdp_ext.pkt_ctx = &ring->pkt_ctx;  in ice_vsi_cfg_rxq()
602 			ring->q_index, err);  in ice_vsi_cfg_rxq()
606 	if (ring->xsk_pool) {  in ice_vsi_cfg_rxq()
609 		if (!xsk_buff_can_alloc(ring->xsk_pool, num_bufs)) {  in ice_vsi_cfg_rxq()
611 				 num_bufs, ring->q_index);  in ice_vsi_cfg_rxq()
617 		ok = ice_alloc_rx_bufs_zc(ring, ring->xsk_pool, num_bufs);  in ice_vsi_cfg_rxq()
619 			u16 pf_q = ring->vsi->rxq_map[ring->q_index];  in ice_vsi_cfg_rxq()
622 				 ring->q_index, pf_q);  in ice_vsi_cfg_rxq()
635 	if (q_idx >= vsi->num_rxq)  in ice_vsi_cfg_single_rxq()
636 		return -EINVAL;  in ice_vsi_cfg_single_rxq()
638 	return ice_vsi_cfg_rxq(vsi->rx_rings[q_idx]);  in ice_vsi_cfg_single_rxq()
642  * ice_vsi_cfg_frame_size - setup max frame size and Rx buffer length
647 	if (!vsi->netdev || test_bit(ICE_FLAG_LEGACY_RX, vsi->back->flags)) {  in ice_vsi_cfg_frame_size()
648 		vsi->max_frame = ICE_MAX_FRAME_LEGACY_RX;  in ice_vsi_cfg_frame_size()
649 		vsi->rx_buf_len = ICE_RXBUF_1664;  in ice_vsi_cfg_frame_size()
652 		   (vsi->netdev->mtu <= ETH_DATA_LEN)) {  in ice_vsi_cfg_frame_size()
653 		vsi->max_frame = ICE_RXBUF_1536 - NET_IP_ALIGN;  in ice_vsi_cfg_frame_size()
654 		vsi->rx_buf_len = ICE_RXBUF_1536 - NET_IP_ALIGN;  in ice_vsi_cfg_frame_size()
657 		vsi->max_frame = ICE_AQ_SET_MAC_FRAME_SIZE_MAX;  in ice_vsi_cfg_frame_size()
658 		vsi->rx_buf_len = ICE_RXBUF_3072;  in ice_vsi_cfg_frame_size()
663  * ice_vsi_cfg_rxqs - Configure the VSI for Rx
673 	if (vsi->type == ICE_VSI_VF)  in ice_vsi_cfg_rxqs()
680 		int err = ice_vsi_cfg_rxq(vsi->rx_rings[i]);  in ice_vsi_cfg_rxqs()
690  * __ice_vsi_get_qs - helper function for assigning queues from PF to VSI
691  * @qs_cfg: gathered variables needed for pf->vsi queues assignment
696  * Return 0 on success and -ENOMEM in case of no left space in PF queue bitmap
705 		qs_cfg->mapping_mode = ICE_VSI_MAP_SCATTER;  in __ice_vsi_get_qs()
706 		qs_cfg->q_count = min_t(unsigned int, qs_cfg->q_count,  in __ice_vsi_get_qs()
707 					qs_cfg->scatter_count);  in __ice_vsi_get_qs()
714  * ice_vsi_ctrl_one_rx_ring - start/stop VSI's Rx ring with no busy wait
717  * @rxq_idx: 0-based Rx queue index for the VSI passed in
725 	int pf_q = vsi->rxq_map[rxq_idx];  in ice_vsi_ctrl_one_rx_ring()
726 	struct ice_pf *pf = vsi->back;  in ice_vsi_ctrl_one_rx_ring()
727 	struct ice_hw *hw = &pf->hw;  in ice_vsi_ctrl_one_rx_ring()
736 	/* turn on/off the queue */  in ice_vsi_ctrl_one_rx_ring()
751  * ice_vsi_wait_one_rx_ring - wait for a VSI's Rx ring to be stopped/started
754  * @rxq_idx: 0-based Rx queue index for the VSI passed in
757  * enabled or disabled state. Returns -ETIMEDOUT in case of failing to reach
763 	int pf_q = vsi->rxq_map[rxq_idx];  in ice_vsi_wait_one_rx_ring()
764 	struct ice_pf *pf = vsi->back;  in ice_vsi_wait_one_rx_ring()
770  * ice_vsi_alloc_q_vectors - Allocate memory for interrupt vectors
774  * return -ENOMEM.
778 	struct device *dev = ice_pf_to_dev(vsi->back);  in ice_vsi_alloc_q_vectors()
782 	if (vsi->q_vectors[0]) {  in ice_vsi_alloc_q_vectors()
783 		dev_dbg(dev, "VSI %d has existing q_vectors\n", vsi->vsi_num);  in ice_vsi_alloc_q_vectors()
784 		return -EEXIST;  in ice_vsi_alloc_q_vectors()
787 	for (v_idx = 0; v_idx < vsi->num_q_vectors; v_idx++) {  in ice_vsi_alloc_q_vectors()
796 	while (v_idx--)  in ice_vsi_alloc_q_vectors()
800 		vsi->num_q_vectors, vsi->vsi_num, err);  in ice_vsi_alloc_q_vectors()
801 	vsi->num_q_vectors = 0;  in ice_vsi_alloc_q_vectors()
806  * ice_vsi_map_rings_to_vectors - Map VSI rings to interrupt vectors
809  * This function maps descriptor rings to the queue-specific vectors allotted
810  * through the MSI-X enabling code. On a constrained vector budget, we map Tx
815 	int q_vectors = vsi->num_q_vectors;  in ice_vsi_map_rings_to_vectors()
820 	tx_rings_rem = vsi->num_txq;  in ice_vsi_map_rings_to_vectors()
821 	rx_rings_rem = vsi->num_rxq;  in ice_vsi_map_rings_to_vectors()
824 		struct ice_q_vector *q_vector = vsi->q_vectors[v_id];  in ice_vsi_map_rings_to_vectors()
830 						  q_vectors - v_id);  in ice_vsi_map_rings_to_vectors()
831 		q_vector->num_ring_tx = tx_rings_per_v;  in ice_vsi_map_rings_to_vectors()
832 		q_vector->tx.tx_ring = NULL;  in ice_vsi_map_rings_to_vectors()
833 		q_vector->tx.itr_idx = ICE_TX_ITR;  in ice_vsi_map_rings_to_vectors()
834 		q_base = vsi->num_txq - tx_rings_rem;  in ice_vsi_map_rings_to_vectors()
837 			struct ice_tx_ring *tx_ring = vsi->tx_rings[q_id];  in ice_vsi_map_rings_to_vectors()
839 			tx_ring->q_vector = q_vector;  in ice_vsi_map_rings_to_vectors()
840 			tx_ring->next = q_vector->tx.tx_ring;  in ice_vsi_map_rings_to_vectors()
841 			q_vector->tx.tx_ring = tx_ring;  in ice_vsi_map_rings_to_vectors()
843 		tx_rings_rem -= tx_rings_per_v;  in ice_vsi_map_rings_to_vectors()
847 						  q_vectors - v_id);  in ice_vsi_map_rings_to_vectors()
848 		q_vector->num_ring_rx = rx_rings_per_v;  in ice_vsi_map_rings_to_vectors()
849 		q_vector->rx.rx_ring = NULL;  in ice_vsi_map_rings_to_vectors()
850 		q_vector->rx.itr_idx = ICE_RX_ITR;  in ice_vsi_map_rings_to_vectors()
851 		q_base = vsi->num_rxq - rx_rings_rem;  in ice_vsi_map_rings_to_vectors()
854 			struct ice_rx_ring *rx_ring = vsi->rx_rings[q_id];  in ice_vsi_map_rings_to_vectors()
856 			rx_ring->q_vector = q_vector;  in ice_vsi_map_rings_to_vectors()
857 			rx_ring->next = q_vector->rx.rx_ring;  in ice_vsi_map_rings_to_vectors()
858 			q_vector->rx.rx_ring = rx_ring;  in ice_vsi_map_rings_to_vectors()
860 		rx_rings_rem -= rx_rings_per_v;  in ice_vsi_map_rings_to_vectors()
868  * ice_vsi_free_q_vectors - Free memory allocated for interrupt vectors
878 	vsi->num_q_vectors = 0;  in ice_vsi_free_q_vectors()
882  * ice_vsi_cfg_txq - Configure single Tx queue
894 	struct ice_channel *ch = ring->ch;  in ice_vsi_cfg_txq()
895 	struct ice_pf *pf = vsi->back;  in ice_vsi_cfg_txq()
896 	struct ice_hw *hw = &pf->hw;  in ice_vsi_cfg_txq()
904 	pf_q = ring->reg_idx;  in ice_vsi_cfg_txq()
907 	qg_buf->txqs[0].txq_id = cpu_to_le16(pf_q);  in ice_vsi_cfg_txq()
908 	ice_set_ctx(hw, (u8 *)&tlan_ctx, qg_buf->txqs[0].txq_ctx,  in ice_vsi_cfg_txq()
914 	ring->tail = hw->hw_addr + QTX_COMM_DBELL(pf_q);  in ice_vsi_cfg_txq()
917 		tc = ring->dcb_tc;  in ice_vsi_cfg_txq()
924 	ring->q_handle = ice_calc_txq_handle(vsi, ring, tc);  in ice_vsi_cfg_txq()
927 		status = ice_ena_vsi_txq(vsi->port_info, ch->ch_vsi->idx, 0,  in ice_vsi_cfg_txq()
928 					 ring->q_handle, 1, qg_buf, buf_len,  in ice_vsi_cfg_txq()
931 		status = ice_ena_vsi_txq(vsi->port_info, vsi->idx, tc,  in ice_vsi_cfg_txq()
932 					 ring->q_handle, 1, qg_buf, buf_len,  in ice_vsi_cfg_txq()
944 	txq = &qg_buf->txqs[0];  in ice_vsi_cfg_txq()
945 	if (pf_q == le16_to_cpu(txq->txq_id))  in ice_vsi_cfg_txq()
946 		ring->txq_teid = le32_to_cpu(txq->q_teid);  in ice_vsi_cfg_txq()
956 	if (q_idx >= vsi->alloc_txq || !tx_rings || !tx_rings[q_idx])  in ice_vsi_cfg_single_txq()
957 		return -EINVAL;  in ice_vsi_cfg_single_txq()
959 	qg_buf->num_txqs = 1;  in ice_vsi_cfg_single_txq()
965  * ice_vsi_cfg_txqs - Configure the VSI for Tx
980 	qg_buf->num_txqs = 1;  in ice_vsi_cfg_txqs()
992  * ice_vsi_cfg_lan_txqs - Configure the VSI for Tx
1000 	return ice_vsi_cfg_txqs(vsi, vsi->tx_rings, vsi->num_txq);  in ice_vsi_cfg_lan_txqs()
1004  * ice_vsi_cfg_xdp_txqs - Configure Tx queues dedicated for XDP in given VSI
1015 	ret = ice_vsi_cfg_txqs(vsi, vsi->xdp_rings, vsi->num_xdp_txq);  in ice_vsi_cfg_xdp_txqs()
1026  * ice_cfg_itr - configure the initial interrupt throttle values
1037 	if (q_vector->num_ring_rx)  in ice_cfg_itr()
1038 		ice_write_itr(&q_vector->rx, q_vector->rx.itr_setting);  in ice_cfg_itr()
1040 	if (q_vector->num_ring_tx)  in ice_cfg_itr()
1041 		ice_write_itr(&q_vector->tx, q_vector->tx.itr_setting);  in ice_cfg_itr()
1043 	ice_write_intrl(q_vector, q_vector->intrl);  in ice_cfg_itr()
1047  * ice_cfg_txq_interrupt - configure interrupt on Tx queue
1049  * @txq: Tx queue being mapped to MSI-X vector
1050  * @msix_idx: MSI-X vector index within the function
1053  * Configure interrupt on Tx queue by associating Tx queue to MSI-X vector
1059 	struct ice_pf *pf = vsi->back;  in ice_cfg_txq_interrupt()
1060 	struct ice_hw *hw = &pf->hw;  in ice_cfg_txq_interrupt()
1068 	wr32(hw, QINT_TQCTL(vsi->txq_map[txq]), val);  in ice_cfg_txq_interrupt()
1070 		u32 xdp_txq = txq + vsi->num_xdp_txq;  in ice_cfg_txq_interrupt()
1072 		wr32(hw, QINT_TQCTL(vsi->txq_map[xdp_txq]),  in ice_cfg_txq_interrupt()
1079  * ice_cfg_rxq_interrupt - configure interrupt on Rx queue
1081  * @rxq: Rx queue being mapped to MSI-X vector
1082  * @msix_idx: MSI-X vector index within the function
1085  * Configure interrupt on Rx queue by associating Rx queue to MSI-X vector
1091 	struct ice_pf *pf = vsi->back;  in ice_cfg_rxq_interrupt()
1092 	struct ice_hw *hw = &pf->hw;  in ice_cfg_rxq_interrupt()
1100 	wr32(hw, QINT_RQCTL(vsi->rxq_map[rxq]), val);  in ice_cfg_rxq_interrupt()
1106  * ice_trigger_sw_intr - trigger a software interrupt
1112 	wr32(hw, GLINT_DYN_CTL(q_vector->reg_idx),  in ice_trigger_sw_intr()
1119  * ice_vsi_stop_tx_ring - Disable single Tx ring
1131 	struct ice_pf *pf = vsi->back;  in ice_vsi_stop_tx_ring()
1133 	struct ice_hw *hw = &pf->hw;  in ice_vsi_stop_tx_ring()
1138 	val = rd32(hw, QINT_TQCTL(ring->reg_idx));  in ice_vsi_stop_tx_ring()
1140 	wr32(hw, QINT_TQCTL(ring->reg_idx), val);  in ice_vsi_stop_tx_ring()
1148 	q_vector = ring->q_vector;  in ice_vsi_stop_tx_ring()
1149 	if (q_vector && !(vsi->vf && ice_is_vf_disabled(vsi->vf)))  in ice_vsi_stop_tx_ring()
1152 	status = ice_dis_vsi_txq(vsi->port_info, txq_meta->vsi_idx,  in ice_vsi_stop_tx_ring()
1153 				 txq_meta->tc, 1, &txq_meta->q_handle,  in ice_vsi_stop_tx_ring()
1154 				 &txq_meta->q_id, &txq_meta->q_teid, rst_src,  in ice_vsi_stop_tx_ring()
1158 	 * active reset flow, -EBUSY is returned.  in ice_vsi_stop_tx_ring()
1162 	if (status == -EBUSY) {  in ice_vsi_stop_tx_ring()
1163 		dev_dbg(ice_pf_to_dev(vsi->back), "Reset in progress. LAN Tx queues already disabled\n");  in ice_vsi_stop_tx_ring()
1164 	} else if (status == -ENOENT) {  in ice_vsi_stop_tx_ring()
1165 		dev_dbg(ice_pf_to_dev(vsi->back), "LAN Tx queues do not exist, nothing to disable\n");  in ice_vsi_stop_tx_ring()
1167 		dev_dbg(ice_pf_to_dev(vsi->back), "Failed to disable LAN Tx queues, error: %d\n",  in ice_vsi_stop_tx_ring()
1176  * ice_fill_txq_meta - Prepare the Tx queue's meta data
1188 	struct ice_channel *ch = ring->ch;  in ice_fill_txq_meta()
1192 		tc = ring->dcb_tc;  in ice_fill_txq_meta()
1196 	txq_meta->q_id = ring->reg_idx;  in ice_fill_txq_meta()
1197 	txq_meta->q_teid = ring->txq_teid;  in ice_fill_txq_meta()
1198 	txq_meta->q_handle = ring->q_handle;  in ice_fill_txq_meta()
1200 		txq_meta->vsi_idx = ch->ch_vsi->idx;  in ice_fill_txq_meta()
1201 		txq_meta->tc = 0;  in ice_fill_txq_meta()
1203 		txq_meta->vsi_idx = vsi->idx;  in ice_fill_txq_meta()
1204 		txq_meta->tc = tc;  in ice_fill_txq_meta()