drivers/net/ethernet/aquantia/atlantic/aq_vec.c - third_party/linux - Git at Google

 /*
  * aQuantia Corporation Network Driver
  * Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
  * version 2, as published by the Free Software Foundation.
  */

 /* File aq_vec.c: Definition of common structure for vector of Rx and Tx rings.
  * Definition of functions for Rx and Tx rings. Friendly module for aq_nic.
  */

 #include "aq_vec.h"
 #include "aq_nic.h"
 #include "aq_ring.h"
 #include "aq_hw.h"

 #include <linux/netdevice.h>

 struct aq_vec_s {
 	const struct aq_hw_ops *aq_hw_ops;
 	struct aq_hw_s *aq_hw;
 	struct aq_nic_s *aq_nic;
 	unsigned int tx_rings;
 	unsigned int rx_rings;
 	struct aq_ring_param_s aq_ring_param;
 	struct napi_struct napi;
 	struct aq_ring_s ring[AQ_CFG_TCS_MAX][2];
 };

 #define AQ_VEC_TX_ID 0
 #define AQ_VEC_RX_ID 1

 static int aq_vec_poll(struct napi_struct *napi, int budget)
 {
 	struct aq_vec_s *self = container_of(napi, struct aq_vec_s, napi);
 	unsigned int sw_tail_old = 0U;
 	struct aq_ring_s *ring = NULL;
 	bool was_tx_cleaned = true;
 	unsigned int i = 0U;
 	int work_done = 0;
 	int err = 0;

 	if (!self) {
 		err = -EINVAL;
 	} else {
 		for (i = 0U, ring = self->ring[0];
 			self->tx_rings > i; ++i, ring = self->ring[i]) {
 			if (self->aq_hw_ops->hw_ring_tx_head_update) {
 				err = self->aq_hw_ops->hw_ring_tx_head_update(
 							self->aq_hw,
 							&ring[AQ_VEC_TX_ID]);
 				if (err < 0)
 					goto err_exit;
 			}

 			if (ring[AQ_VEC_TX_ID].sw_head !=
 			    ring[AQ_VEC_TX_ID].hw_head) {
 				was_tx_cleaned = aq_ring_tx_clean(&ring[AQ_VEC_TX_ID]);
 				aq_ring_update_queue_state(&ring[AQ_VEC_TX_ID]);
 			}

 			err = self->aq_hw_ops->hw_ring_rx_receive(self->aq_hw,
 					    &ring[AQ_VEC_RX_ID]);
 			if (err < 0)
 				goto err_exit;

 			if (ring[AQ_VEC_RX_ID].sw_head !=
 				ring[AQ_VEC_RX_ID].hw_head) {
 				err = aq_ring_rx_clean(&ring[AQ_VEC_RX_ID],
 						       napi,
 						       &work_done,
 						       budget - work_done);
 				if (err < 0)
 					goto err_exit;

 				sw_tail_old = ring[AQ_VEC_RX_ID].sw_tail;

 				err = aq_ring_rx_fill(&ring[AQ_VEC_RX_ID]);
 				if (err < 0)
 					goto err_exit;

 				err = self->aq_hw_ops->hw_ring_rx_fill(
 					self->aq_hw,
 					&ring[AQ_VEC_RX_ID], sw_tail_old);
 				if (err < 0)
 					goto err_exit;
 			}
 		}

 		if (!was_tx_cleaned)
 			work_done = budget;

 		if (work_done < budget) {
 			napi_complete_done(napi, work_done);
 			self->aq_hw_ops->hw_irq_enable(self->aq_hw,
 					1U << self->aq_ring_param.vec_idx);
 		}
 	}
 err_exit:
 	return work_done;
 }

 struct aq_vec_s *aq_vec_alloc(struct aq_nic_s *aq_nic, unsigned int idx,
 			      struct aq_nic_cfg_s *aq_nic_cfg)
 {
 	struct aq_vec_s *self = NULL;
 	struct aq_ring_s *ring = NULL;
 	unsigned int i = 0U;
 	int err = 0;

 	self = kzalloc(sizeof(*self), GFP_KERNEL);
 	if (!self) {
 		err = -ENOMEM;
 		goto err_exit;
 	}

 	self->aq_nic = aq_nic;
 	self->aq_ring_param.vec_idx = idx;
 	self->aq_ring_param.cpu =
 		idx + aq_nic_cfg->aq_rss.base_cpu_number;

 	cpumask_set_cpu(self->aq_ring_param.cpu,
 			&self->aq_ring_param.affinity_mask);

 	self->tx_rings = 0;
 	self->rx_rings = 0;

 	netif_napi_add(aq_nic_get_ndev(aq_nic), &self->napi,
 		       aq_vec_poll, AQ_CFG_NAPI_WEIGHT);

 	for (i = 0; i < aq_nic_cfg->tcs; ++i) {
 		unsigned int idx_ring = AQ_NIC_TCVEC2RING(self->nic,
 						self->tx_rings,
 						self->aq_ring_param.vec_idx);

 		ring = aq_ring_tx_alloc(&self->ring[i][AQ_VEC_TX_ID], aq_nic,
 					idx_ring, aq_nic_cfg);
 		if (!ring) {
 			err = -ENOMEM;
 			goto err_exit;
 		}

 		++self->tx_rings;

 		aq_nic_set_tx_ring(aq_nic, idx_ring, ring);

 		ring = aq_ring_rx_alloc(&self->ring[i][AQ_VEC_RX_ID], aq_nic,
 					idx_ring, aq_nic_cfg);
 		if (!ring) {
 			err = -ENOMEM;
 			goto err_exit;
 		}

 		++self->rx_rings;
 	}

 err_exit:
 	if (err < 0) {
 		aq_vec_free(self);
 		self = NULL;
 	}
 	return self;
 }

 int aq_vec_init(struct aq_vec_s *self, const struct aq_hw_ops *aq_hw_ops,
 		struct aq_hw_s *aq_hw)
 {
 	struct aq_ring_s *ring = NULL;
 	unsigned int i = 0U;
 	int err = 0;

 	self->aq_hw_ops = aq_hw_ops;
 	self->aq_hw = aq_hw;

 	for (i = 0U, ring = self->ring[0];
 		self->tx_rings > i; ++i, ring = self->ring[i]) {
 		err = aq_ring_init(&ring[AQ_VEC_TX_ID]);
 		if (err < 0)
 			goto err_exit;

 		err = self->aq_hw_ops->hw_ring_tx_init(self->aq_hw,
 						       &ring[AQ_VEC_TX_ID],
 						       &self->aq_ring_param);
 		if (err < 0)
 			goto err_exit;

 		err = aq_ring_init(&ring[AQ_VEC_RX_ID]);
 		if (err < 0)
 			goto err_exit;

 		err = self->aq_hw_ops->hw_ring_rx_init(self->aq_hw,
 						       &ring[AQ_VEC_RX_ID],
 						       &self->aq_ring_param);
 		if (err < 0)
 			goto err_exit;

 		err = aq_ring_rx_fill(&ring[AQ_VEC_RX_ID]);
 		if (err < 0)
 			goto err_exit;

 		err = self->aq_hw_ops->hw_ring_rx_fill(self->aq_hw,
 						       &ring[AQ_VEC_RX_ID], 0U);
 		if (err < 0)
 			goto err_exit;
 	}

 err_exit:
 	return err;
 }

 int aq_vec_start(struct aq_vec_s *self)
 {
 	struct aq_ring_s *ring = NULL;
 	unsigned int i = 0U;
 	int err = 0;

 	for (i = 0U, ring = self->ring[0];
 		self->tx_rings > i; ++i, ring = self->ring[i]) {
 		err = self->aq_hw_ops->hw_ring_tx_start(self->aq_hw,
 							&ring[AQ_VEC_TX_ID]);
 		if (err < 0)
 			goto err_exit;

 		err = self->aq_hw_ops->hw_ring_rx_start(self->aq_hw,
 							&ring[AQ_VEC_RX_ID]);
 		if (err < 0)
 			goto err_exit;
 	}

 	napi_enable(&self->napi);

 err_exit:
 	return err;
 }

 void aq_vec_stop(struct aq_vec_s *self)
 {
 	struct aq_ring_s *ring = NULL;
 	unsigned int i = 0U;

 	for (i = 0U, ring = self->ring[0];
 		self->tx_rings > i; ++i, ring = self->ring[i]) {
 		self->aq_hw_ops->hw_ring_tx_stop(self->aq_hw,
 						 &ring[AQ_VEC_TX_ID]);

 		self->aq_hw_ops->hw_ring_rx_stop(self->aq_hw,
 						 &ring[AQ_VEC_RX_ID]);
 	}

 	napi_disable(&self->napi);
 }

 void aq_vec_deinit(struct aq_vec_s *self)
 {
 	struct aq_ring_s *ring = NULL;
 	unsigned int i = 0U;

 	if (!self)
 		goto err_exit;

 	for (i = 0U, ring = self->ring[0];
 		self->tx_rings > i; ++i, ring = self->ring[i]) {
 		aq_ring_tx_clean(&ring[AQ_VEC_TX_ID]);
 		aq_ring_rx_deinit(&ring[AQ_VEC_RX_ID]);
 	}
 err_exit:;
 }

 void aq_vec_free(struct aq_vec_s *self)
 {
 	struct aq_ring_s *ring = NULL;
 	unsigned int i = 0U;

 	if (!self)
 		goto err_exit;

 	for (i = 0U, ring = self->ring[0];
 		self->tx_rings > i; ++i, ring = self->ring[i]) {
 		aq_ring_free(&ring[AQ_VEC_TX_ID]);
 		aq_ring_free(&ring[AQ_VEC_RX_ID]);
 	}

 	netif_napi_del(&self->napi);

 	kfree(self);

 err_exit:;
 }

 irqreturn_t aq_vec_isr(int irq, void *private)
 {
 	struct aq_vec_s *self = private;
 	int err = 0;

 	if (!self) {
 		err = -EINVAL;
 		goto err_exit;
 	}
 	napi_schedule(&self->napi);

 err_exit:
 	return err >= 0 ? IRQ_HANDLED : IRQ_NONE;
 }

 irqreturn_t aq_vec_isr_legacy(int irq, void *private)
 {
 	struct aq_vec_s *self = private;
 	u64 irq_mask = 0U;
 	irqreturn_t err = 0;

 	if (!self) {
 		err = -EINVAL;
 		goto err_exit;
 	}
 	err = self->aq_hw_ops->hw_irq_read(self->aq_hw, &irq_mask);
 	if (err < 0)
 		goto err_exit;

 	if (irq_mask) {
 		self->aq_hw_ops->hw_irq_disable(self->aq_hw,
 			      1U << self->aq_ring_param.vec_idx);
 		napi_schedule(&self->napi);
 	} else {
 		self->aq_hw_ops->hw_irq_enable(self->aq_hw, 1U);
 		err = IRQ_NONE;
 	}

 err_exit:
 	return err >= 0 ? IRQ_HANDLED : IRQ_NONE;
 }

 cpumask_t *aq_vec_get_affinity_mask(struct aq_vec_s *self)
 {
 	return &self->aq_ring_param.affinity_mask;
 }

 void aq_vec_add_stats(struct aq_vec_s *self,
 		      struct aq_ring_stats_rx_s *stats_rx,
 		      struct aq_ring_stats_tx_s *stats_tx)
 {
 	struct aq_ring_s *ring = NULL;
 	unsigned int r = 0U;

 	for (r = 0U, ring = self->ring[0];
 		self->tx_rings > r; ++r, ring = self->ring[r]) {
 		struct aq_ring_stats_tx_s *tx = &ring[AQ_VEC_TX_ID].stats.tx;
 		struct aq_ring_stats_rx_s *rx = &ring[AQ_VEC_RX_ID].stats.rx;

 		stats_rx->packets += rx->packets;
 		stats_rx->bytes += rx->bytes;
 		stats_rx->errors += rx->errors;
 		stats_rx->jumbo_packets += rx->jumbo_packets;
 		stats_rx->lro_packets += rx->lro_packets;

 		stats_tx->packets += tx->packets;
 		stats_tx->bytes += tx->bytes;
 		stats_tx->errors += tx->errors;
 		stats_tx->queue_restarts += tx->queue_restarts;
 	}
 }

 int aq_vec_get_sw_stats(struct aq_vec_s *self, u64 *data, unsigned int *p_count)
 {
 	unsigned int count = 0U;
 	struct aq_ring_stats_rx_s stats_rx;
 	struct aq_ring_stats_tx_s stats_tx;

 	memset(&stats_rx, 0U, sizeof(struct aq_ring_stats_rx_s));
 	memset(&stats_tx, 0U, sizeof(struct aq_ring_stats_tx_s));
 	aq_vec_add_stats(self, &stats_rx, &stats_tx);

 	/* This data should mimic aq_ethtool_queue_stat_names structure
 	 */
 	data[count] += stats_rx.packets;
 	data[++count] += stats_tx.packets;
 	data[++count] += stats_tx.queue_restarts;
 	data[++count] += stats_rx.jumbo_packets;
 	data[++count] += stats_rx.lro_packets;
 	data[++count] += stats_rx.errors;

 	if (p_count)
 		*p_count = ++count;

 	return 0;
 }
	/*
	* aQuantia Corporation Network Driver
	* Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved
	*
	* This program is free software; you can redistribute it and/or modify it
	* under the terms and conditions of the GNU General Public License,
	* version 2, as published by the Free Software Foundation.
	*/

	/* File aq_vec.c: Definition of common structure for vector of Rx and Tx rings.
	* Definition of functions for Rx and Tx rings. Friendly module for aq_nic.
	*/

	#include "aq_vec.h"
	#include "aq_nic.h"
	#include "aq_ring.h"
	#include "aq_hw.h"

	#include <linux/netdevice.h>

	struct aq_vec_s {
	const struct aq_hw_ops *aq_hw_ops;
	struct aq_hw_s *aq_hw;
	struct aq_nic_s *aq_nic;
	unsigned int tx_rings;
	unsigned int rx_rings;
	struct aq_ring_param_s aq_ring_param;
	struct napi_struct napi;
	struct aq_ring_s ring[AQ_CFG_TCS_MAX][2];
	};

	#define AQ_VEC_TX_ID 0
	#define AQ_VEC_RX_ID 1

	static int aq_vec_poll(struct napi_struct *napi, int budget)
	{
	struct aq_vec_s *self = container_of(napi, struct aq_vec_s, napi);
	unsigned int sw_tail_old = 0U;
	struct aq_ring_s *ring = NULL;
	bool was_tx_cleaned = true;
	unsigned int i = 0U;
	int work_done = 0;
	int err = 0;

	if (!self) {
	err = -EINVAL;
	} else {
	for (i = 0U, ring = self->ring[0];
	self->tx_rings > i; ++i, ring = self->ring[i]) {
	if (self->aq_hw_ops->hw_ring_tx_head_update) {
	err = self->aq_hw_ops->hw_ring_tx_head_update(
	self->aq_hw,
	&ring[AQ_VEC_TX_ID]);
	if (err < 0)
	goto err_exit;
	}

	if (ring[AQ_VEC_TX_ID].sw_head !=
	ring[AQ_VEC_TX_ID].hw_head) {
	was_tx_cleaned = aq_ring_tx_clean(&ring[AQ_VEC_TX_ID]);
	aq_ring_update_queue_state(&ring[AQ_VEC_TX_ID]);
	}

	err = self->aq_hw_ops->hw_ring_rx_receive(self->aq_hw,
	&ring[AQ_VEC_RX_ID]);
	if (err < 0)
	goto err_exit;

	if (ring[AQ_VEC_RX_ID].sw_head !=
	ring[AQ_VEC_RX_ID].hw_head) {
	err = aq_ring_rx_clean(&ring[AQ_VEC_RX_ID],
	napi,
	&work_done,
	budget - work_done);
	if (err < 0)
	goto err_exit;

	sw_tail_old = ring[AQ_VEC_RX_ID].sw_tail;

	err = aq_ring_rx_fill(&ring[AQ_VEC_RX_ID]);
	if (err < 0)
	goto err_exit;

	err = self->aq_hw_ops->hw_ring_rx_fill(
	self->aq_hw,
	&ring[AQ_VEC_RX_ID], sw_tail_old);
	if (err < 0)
	goto err_exit;
	}
	}

	if (!was_tx_cleaned)
	work_done = budget;

	if (work_done < budget) {
	napi_complete_done(napi, work_done);
	self->aq_hw_ops->hw_irq_enable(self->aq_hw,
	1U << self->aq_ring_param.vec_idx);
	}
	}
	err_exit:
	return work_done;
	}

	struct aq_vec_s aq_vec_alloc(struct aq_nic_s aq_nic, unsigned int idx,
	struct aq_nic_cfg_s *aq_nic_cfg)
	{
	struct aq_vec_s *self = NULL;
	struct aq_ring_s *ring = NULL;
	unsigned int i = 0U;
	int err = 0;

	self = kzalloc(sizeof(*self), GFP_KERNEL);
	if (!self) {
	err = -ENOMEM;
	goto err_exit;
	}

	self->aq_nic = aq_nic;
	self->aq_ring_param.vec_idx = idx;
	self->aq_ring_param.cpu =
	idx + aq_nic_cfg->aq_rss.base_cpu_number;

	cpumask_set_cpu(self->aq_ring_param.cpu,
	&self->aq_ring_param.affinity_mask);

	self->tx_rings = 0;
	self->rx_rings = 0;

	netif_napi_add(aq_nic_get_ndev(aq_nic), &self->napi,
	aq_vec_poll, AQ_CFG_NAPI_WEIGHT);

	for (i = 0; i < aq_nic_cfg->tcs; ++i) {
	unsigned int idx_ring = AQ_NIC_TCVEC2RING(self->nic,
	self->tx_rings,
	self->aq_ring_param.vec_idx);

	ring = aq_ring_tx_alloc(&self->ring[i][AQ_VEC_TX_ID], aq_nic,
	idx_ring, aq_nic_cfg);
	if (!ring) {
	err = -ENOMEM;
	goto err_exit;
	}

	++self->tx_rings;

	aq_nic_set_tx_ring(aq_nic, idx_ring, ring);

	ring = aq_ring_rx_alloc(&self->ring[i][AQ_VEC_RX_ID], aq_nic,
	idx_ring, aq_nic_cfg);
	if (!ring) {
	err = -ENOMEM;
	goto err_exit;
	}

	++self->rx_rings;
	}

	err_exit:
	if (err < 0) {
	aq_vec_free(self);
	self = NULL;
	}
	return self;
	}

	int aq_vec_init(struct aq_vec_s self, const struct aq_hw_ops aq_hw_ops,
	struct aq_hw_s *aq_hw)
	{
	struct aq_ring_s *ring = NULL;
	unsigned int i = 0U;
	int err = 0;

	self->aq_hw_ops = aq_hw_ops;
	self->aq_hw = aq_hw;

	for (i = 0U, ring = self->ring[0];
	self->tx_rings > i; ++i, ring = self->ring[i]) {
	err = aq_ring_init(&ring[AQ_VEC_TX_ID]);
	if (err < 0)
	goto err_exit;

	err = self->aq_hw_ops->hw_ring_tx_init(self->aq_hw,
	&ring[AQ_VEC_TX_ID],
	&self->aq_ring_param);
	if (err < 0)
	goto err_exit;

	err = aq_ring_init(&ring[AQ_VEC_RX_ID]);
	if (err < 0)
	goto err_exit;

	err = self->aq_hw_ops->hw_ring_rx_init(self->aq_hw,
	&ring[AQ_VEC_RX_ID],
	&self->aq_ring_param);
	if (err < 0)
	goto err_exit;

	err = aq_ring_rx_fill(&ring[AQ_VEC_RX_ID]);
	if (err < 0)
	goto err_exit;

	err = self->aq_hw_ops->hw_ring_rx_fill(self->aq_hw,
	&ring[AQ_VEC_RX_ID], 0U);
	if (err < 0)
	goto err_exit;
	}

	err_exit:
	return err;
	}

	int aq_vec_start(struct aq_vec_s *self)
	{
	struct aq_ring_s *ring = NULL;
	unsigned int i = 0U;
	int err = 0;

	for (i = 0U, ring = self->ring[0];
	self->tx_rings > i; ++i, ring = self->ring[i]) {
	err = self->aq_hw_ops->hw_ring_tx_start(self->aq_hw,
	&ring[AQ_VEC_TX_ID]);
	if (err < 0)
	goto err_exit;

	err = self->aq_hw_ops->hw_ring_rx_start(self->aq_hw,
	&ring[AQ_VEC_RX_ID]);
	if (err < 0)
	goto err_exit;
	}

	napi_enable(&self->napi);

	err_exit:
	return err;
	}

	void aq_vec_stop(struct aq_vec_s *self)
	{
	struct aq_ring_s *ring = NULL;
	unsigned int i = 0U;

	for (i = 0U, ring = self->ring[0];
	self->tx_rings > i; ++i, ring = self->ring[i]) {
	self->aq_hw_ops->hw_ring_tx_stop(self->aq_hw,
	&ring[AQ_VEC_TX_ID]);

	self->aq_hw_ops->hw_ring_rx_stop(self->aq_hw,
	&ring[AQ_VEC_RX_ID]);
	}

	napi_disable(&self->napi);
	}

	void aq_vec_deinit(struct aq_vec_s *self)
	{
	struct aq_ring_s *ring = NULL;
	unsigned int i = 0U;

	if (!self)
	goto err_exit;

	for (i = 0U, ring = self->ring[0];
	self->tx_rings > i; ++i, ring = self->ring[i]) {
	aq_ring_tx_clean(&ring[AQ_VEC_TX_ID]);
	aq_ring_rx_deinit(&ring[AQ_VEC_RX_ID]);
	}
	err_exit:;
	}

	void aq_vec_free(struct aq_vec_s *self)
	{
	struct aq_ring_s *ring = NULL;
	unsigned int i = 0U;

	if (!self)
	goto err_exit;

	for (i = 0U, ring = self->ring[0];
	self->tx_rings > i; ++i, ring = self->ring[i]) {
	aq_ring_free(&ring[AQ_VEC_TX_ID]);
	aq_ring_free(&ring[AQ_VEC_RX_ID]);
	}

	netif_napi_del(&self->napi);

	kfree(self);

	err_exit:;
	}

	irqreturn_t aq_vec_isr(int irq, void *private)
	{
	struct aq_vec_s *self = private;
	int err = 0;

	if (!self) {
	err = -EINVAL;
	goto err_exit;
	}
	napi_schedule(&self->napi);

	err_exit:
	return err >= 0 ? IRQ_HANDLED : IRQ_NONE;
	}

	irqreturn_t aq_vec_isr_legacy(int irq, void *private)
	{
	struct aq_vec_s *self = private;
	u64 irq_mask = 0U;
	irqreturn_t err = 0;

	if (!self) {
	err = -EINVAL;
	goto err_exit;
	}
	err = self->aq_hw_ops->hw_irq_read(self->aq_hw, &irq_mask);
	if (err < 0)
	goto err_exit;

	if (irq_mask) {
	self->aq_hw_ops->hw_irq_disable(self->aq_hw,
	1U << self->aq_ring_param.vec_idx);
	napi_schedule(&self->napi);
	} else {
	self->aq_hw_ops->hw_irq_enable(self->aq_hw, 1U);
	err = IRQ_NONE;
	}

	err_exit:
	return err >= 0 ? IRQ_HANDLED : IRQ_NONE;
	}

	cpumask_t aq_vec_get_affinity_mask(struct aq_vec_s self)
	{
	return &self->aq_ring_param.affinity_mask;
	}

	void aq_vec_add_stats(struct aq_vec_s *self,
	struct aq_ring_stats_rx_s *stats_rx,
	struct aq_ring_stats_tx_s *stats_tx)
	{
	struct aq_ring_s *ring = NULL;
	unsigned int r = 0U;

	for (r = 0U, ring = self->ring[0];
	self->tx_rings > r; ++r, ring = self->ring[r]) {
	struct aq_ring_stats_tx_s *tx = &ring[AQ_VEC_TX_ID].stats.tx;
	struct aq_ring_stats_rx_s *rx = &ring[AQ_VEC_RX_ID].stats.rx;

	stats_rx->packets += rx->packets;
	stats_rx->bytes += rx->bytes;
	stats_rx->errors += rx->errors;
	stats_rx->jumbo_packets += rx->jumbo_packets;
	stats_rx->lro_packets += rx->lro_packets;

	stats_tx->packets += tx->packets;
	stats_tx->bytes += tx->bytes;
	stats_tx->errors += tx->errors;
	stats_tx->queue_restarts += tx->queue_restarts;
	}
	}

	int aq_vec_get_sw_stats(struct aq_vec_s self, u64 data, unsigned int *p_count)
	{
	unsigned int count = 0U;
	struct aq_ring_stats_rx_s stats_rx;
	struct aq_ring_stats_tx_s stats_tx;

	memset(&stats_rx, 0U, sizeof(struct aq_ring_stats_rx_s));
	memset(&stats_tx, 0U, sizeof(struct aq_ring_stats_tx_s));
	aq_vec_add_stats(self, &stats_rx, &stats_tx);

	/* This data should mimic aq_ethtool_queue_stat_names structure
	*/
	data[count] += stats_rx.packets;
	data[++count] += stats_tx.packets;
	data[++count] += stats_tx.queue_restarts;
	data[++count] += stats_rx.jumbo_packets;
	data[++count] += stats_rx.lro_packets;
	data[++count] += stats_rx.errors;

	if (p_count)
	*p_count = ++count;

	return 0;
	}