/*
 * Copyright (c) 2017, 2021, The Linux Foundation. All rights reserved.
 * Copyright (c) 22023 Qualcomm Innovation Center, Inc. All rights reserved.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

/**
 * @defgroup
 * @{
 */
#include "sw.h"
#include "hppe_rss_reg.h"
#include "hppe_rss.h"
#include "adpt.h"

#define ADPT_RSS_HASH_IP_MIX_MAX_NUM 4

sw_error_t
adpt_hppe_rss_hash_config_set(a_uint32_t dev_id, fal_rss_hash_mode_t mode,
			fal_rss_hash_config_t * config)
{
	a_uint32_t index;
	union rss_hash_mask_reg_u rss_hash_mask_ipv6 = {0};
	union rss_hash_seed_reg_u rss_hash_seed_ipv6 = {0};
	union rss_hash_mix_reg_u rss_hash_mix_ipv6[11] = {0};
	union rss_hash_fin_reg_u rss_hash_fin_ipv6[5] = {0};
	union rss_hash_mask_ipv4_reg_u rss_hash_mask_ipv4 = {0};
	union rss_hash_seed_ipv4_reg_u rss_hash_seed_ipv4 = {0};
	union rss_hash_mix_ipv4_reg_u rss_hash_mix_ipv4[5] = {0};
	union rss_hash_fin_ipv4_reg_u rss_hash_fin_ipv4[5] = {0};

	ADPT_DEV_ID_CHECK(dev_id);

	if (mode == FAL_RSS_HASH_IPV4V6 || mode == FAL_RSS_HASH_IPV4ONLY)
	{
		rss_hash_mask_ipv4.bf.mask = config->hash_mask & 0x1fffff;
		rss_hash_mask_ipv4.bf.fragment = config->hash_fragment_mode;

		rss_hash_seed_ipv4.bf.seed = config->hash_seed;

		rss_hash_mix_ipv4[0].bf.hash_mix = config->hash_sip_mix[0] & 0x1f;
		rss_hash_mix_ipv4[1].bf.hash_mix = config->hash_dip_mix[0] & 0x1f;
		rss_hash_mix_ipv4[2].bf.hash_mix = config->hash_protocol_mix & 0x1f;
		rss_hash_mix_ipv4[3].bf.hash_mix = config->hash_dport_mix & 0x1f;
		rss_hash_mix_ipv4[4].bf.hash_mix = config->hash_sport_mix & 0x1f;

		for (index = 0; index < RSS_HASH_FIN_IPV4_REG_NUM; index++)
		{
			rss_hash_fin_ipv4[index].bf.fin_inner =
					config->hash_fin_inner[index] & 0x1f;
			rss_hash_fin_ipv4[index].bf.fin_outer =
					config->hash_fin_outer[index] & 0x1f;
		}

		SW_RTN_ON_ERROR(hppe_rss_hash_mask_ipv4_reg_set(dev_id, &rss_hash_mask_ipv4));
		SW_RTN_ON_ERROR(hppe_rss_hash_seed_ipv4_reg_set(dev_id, &rss_hash_seed_ipv4));
		for (index = 0; index < RSS_HASH_MIX_IPV4_REG_NUM; index++)
		{
			SW_RTN_ON_ERROR(hppe_rss_hash_mix_ipv4_reg_set(dev_id, index,
					&rss_hash_mix_ipv4[index]));
		}
		for (index = 0; index < RSS_HASH_FIN_IPV4_REG_NUM; index++)
		{
			SW_RTN_ON_ERROR(hppe_rss_hash_fin_ipv4_reg_set(dev_id, index,
					&rss_hash_fin_ipv4[index]));
		}
	}

	if (mode == FAL_RSS_HASH_IPV4V6 || mode == FAL_RSS_HASH_IPV6ONLY)
	{
		rss_hash_mask_ipv6.bf.mask = config->hash_mask & 0x1fffff;
		rss_hash_mask_ipv6.bf.fragment = config->hash_fragment_mode;

		rss_hash_seed_ipv6.bf.seed = config->hash_seed;

		for (index = 0; index < ADPT_RSS_HASH_IP_MIX_MAX_NUM; index++)
		{
			rss_hash_mix_ipv6[index].bf.hash_mix =
					config->hash_sip_mix[index] & 0x1f;
			rss_hash_mix_ipv6[index + ADPT_RSS_HASH_IP_MIX_MAX_NUM].bf.hash_mix =
					config->hash_dip_mix[index] & 0x1f;
		}
		rss_hash_mix_ipv6[8].bf.hash_mix = config->hash_protocol_mix & 0x1f;
		rss_hash_mix_ipv6[9].bf.hash_mix = config->hash_dport_mix & 0x1f;
		rss_hash_mix_ipv6[10].bf.hash_mix = config->hash_sport_mix & 0x1f;

		for (index = 0; index < RSS_HASH_FIN_REG_NUM; index++)
		{
			rss_hash_fin_ipv6[index].bf.fin_inner =
					config->hash_fin_inner[index] & 0x1f;
			rss_hash_fin_ipv6[index].bf.fin_outer =
					config->hash_fin_outer[index] & 0x1f;
		}

		SW_RTN_ON_ERROR(hppe_rss_hash_mask_reg_set(dev_id, &rss_hash_mask_ipv6));
		SW_RTN_ON_ERROR(hppe_rss_hash_seed_reg_set(dev_id, &rss_hash_seed_ipv6));
		for (index = 0; index < RSS_HASH_MIX_REG_NUM; index++)
		{
			SW_RTN_ON_ERROR(hppe_rss_hash_mix_reg_set(dev_id, index,
					&rss_hash_mix_ipv6[index]));
		}
		for (index = 0; index < RSS_HASH_FIN_REG_NUM; index++)
		{
			SW_RTN_ON_ERROR(hppe_rss_hash_fin_reg_set(dev_id, index,
					&rss_hash_fin_ipv6[index]));
		}
	}

	return SW_OK;
}

sw_error_t
adpt_hppe_rss_hash_config_get(a_uint32_t dev_id, fal_rss_hash_mode_t mode,
			fal_rss_hash_config_t * config)
{
	a_uint32_t index;
	union rss_hash_mask_reg_u rss_hash_mask_ipv6 = {0};
	union rss_hash_seed_reg_u rss_hash_seed_ipv6 = {0};
	union rss_hash_mix_reg_u rss_hash_mix_ipv6[11] = {0};
	union rss_hash_fin_reg_u rss_hash_fin_ipv6[5] = {0};
	union rss_hash_mask_ipv4_reg_u rss_hash_mask_ipv4 = {0};
	union rss_hash_seed_ipv4_reg_u rss_hash_seed_ipv4 = {0};
	union rss_hash_mix_ipv4_reg_u rss_hash_mix_ipv4[5] = {0};
	union rss_hash_fin_ipv4_reg_u rss_hash_fin_ipv4[5] = {0};

	ADPT_DEV_ID_CHECK(dev_id);

	SW_RTN_ON_ERROR(hppe_rss_hash_mask_ipv4_reg_get(dev_id, &rss_hash_mask_ipv4));
	SW_RTN_ON_ERROR(hppe_rss_hash_seed_ipv4_reg_get(dev_id, &rss_hash_seed_ipv4));
	for (index = 0; index < RSS_HASH_MIX_IPV4_REG_NUM; index++)
	{
		SW_RTN_ON_ERROR(hppe_rss_hash_mix_ipv4_reg_get(dev_id, index,
				&rss_hash_mix_ipv4[index]));
	}
	for (index = 0; index < RSS_HASH_FIN_IPV4_REG_NUM; index++)
	{
		SW_RTN_ON_ERROR(hppe_rss_hash_fin_ipv4_reg_get(dev_id, index,
				&rss_hash_fin_ipv4[index]));
	}

	SW_RTN_ON_ERROR(hppe_rss_hash_mask_reg_get(dev_id, &rss_hash_mask_ipv6));
	SW_RTN_ON_ERROR(hppe_rss_hash_seed_reg_get(dev_id, &rss_hash_seed_ipv6));
	for (index = 0; index < RSS_HASH_MIX_REG_NUM; index++)
	{
		SW_RTN_ON_ERROR(hppe_rss_hash_mix_reg_get(dev_id, index,
				&rss_hash_mix_ipv6[index]));
	}
	for (index = 0; index < RSS_HASH_FIN_REG_NUM; index++)
	{
		SW_RTN_ON_ERROR(hppe_rss_hash_fin_reg_get(dev_id, index,
				&rss_hash_fin_ipv6[index]));
	}

	if (mode == FAL_RSS_HASH_IPV4ONLY)
	{
		config->hash_mask = rss_hash_mask_ipv4.bf.mask;
		config->hash_fragment_mode = rss_hash_mask_ipv4.bf.fragment;
		config->hash_seed = rss_hash_seed_ipv4.bf.seed;
		config->hash_sip_mix[0] = rss_hash_mix_ipv4[0].bf.hash_mix;
		config->hash_dip_mix[0] = rss_hash_mix_ipv4[1].bf.hash_mix;
		config->hash_protocol_mix = rss_hash_mix_ipv4[2].bf.hash_mix;
		config->hash_dport_mix = rss_hash_mix_ipv4[3].bf.hash_mix;
		config->hash_sport_mix = rss_hash_mix_ipv4[4].bf.hash_mix;
		for (index = 0; index < RSS_HASH_FIN_IPV4_REG_NUM; index++)
		{
			config->hash_fin_inner[index] = rss_hash_fin_ipv4[index].bf.fin_inner;
			config->hash_fin_outer[index] = rss_hash_fin_ipv4[index].bf.fin_outer;
		}
	}
	else if (mode == FAL_RSS_HASH_IPV6ONLY)
	{
		config->hash_mask = rss_hash_mask_ipv6.bf.mask;
		config->hash_fragment_mode = rss_hash_mask_ipv6.bf.fragment;
		config->hash_seed = rss_hash_seed_ipv6.bf.seed;
		for (index = 0; index < ADPT_RSS_HASH_IP_MIX_MAX_NUM; index++)
		{
			config->hash_sip_mix[index] = rss_hash_mix_ipv6[index].bf.hash_mix;
			config->hash_dip_mix[index] =
				rss_hash_mix_ipv6[index + ADPT_RSS_HASH_IP_MIX_MAX_NUM].bf.hash_mix;
		}
		config->hash_protocol_mix = rss_hash_mix_ipv6[8].bf.hash_mix;
		config->hash_dport_mix = rss_hash_mix_ipv6[9].bf.hash_mix;
		config->hash_sport_mix = rss_hash_mix_ipv6[10].bf.hash_mix;
		for (index = 0; index < RSS_HASH_FIN_REG_NUM; index++)
		{
			config->hash_fin_inner[index] = rss_hash_fin_ipv6[index].bf.fin_inner;
			config->hash_fin_outer[index] = rss_hash_fin_ipv6[index].bf.fin_outer;
		}
	}
	else
	{
		if ((rss_hash_mask_ipv4.bf.mask == rss_hash_mask_ipv6.bf.mask) &&
			(rss_hash_mask_ipv4.bf.fragment == rss_hash_mask_ipv6.bf.fragment) &&
			(rss_hash_seed_ipv4.bf.seed == rss_hash_seed_ipv6.bf.seed) &&
			(rss_hash_mix_ipv4[0].bf.hash_mix == rss_hash_mix_ipv6[0].bf.hash_mix) &&
			(rss_hash_mix_ipv4[1].bf.hash_mix == rss_hash_mix_ipv6[4].bf.hash_mix) &&
			(rss_hash_mix_ipv4[2].bf.hash_mix == rss_hash_mix_ipv6[8].bf.hash_mix) &&
			(rss_hash_mix_ipv4[3].bf.hash_mix == rss_hash_mix_ipv6[9].bf.hash_mix) &&
			(rss_hash_mix_ipv4[4].bf.hash_mix == rss_hash_mix_ipv6[10].bf.hash_mix) &&
			(rss_hash_fin_ipv4[0].bf.fin_inner == rss_hash_fin_ipv6[0].bf.fin_inner) &&
			(rss_hash_fin_ipv4[1].bf.fin_inner == rss_hash_fin_ipv6[1].bf.fin_inner) &&
			(rss_hash_fin_ipv4[2].bf.fin_inner == rss_hash_fin_ipv6[2].bf.fin_inner) &&
			(rss_hash_fin_ipv4[3].bf.fin_inner == rss_hash_fin_ipv6[3].bf.fin_inner) &&
			(rss_hash_fin_ipv4[4].bf.fin_inner == rss_hash_fin_ipv6[4].bf.fin_inner) &&
			(rss_hash_fin_ipv4[0].bf.fin_outer == rss_hash_fin_ipv6[0].bf.fin_outer) &&
			(rss_hash_fin_ipv4[1].bf.fin_outer == rss_hash_fin_ipv6[1].bf.fin_outer) &&
			(rss_hash_fin_ipv4[2].bf.fin_outer == rss_hash_fin_ipv6[2].bf.fin_outer) &&
			(rss_hash_fin_ipv4[3].bf.fin_outer == rss_hash_fin_ipv6[3].bf.fin_outer) &&
			(rss_hash_fin_ipv4[4].bf.fin_outer == rss_hash_fin_ipv6[4].bf.fin_outer))
		{
			config->hash_mask = rss_hash_mask_ipv6.bf.mask;
			config->hash_fragment_mode = rss_hash_mask_ipv6.bf.fragment;
			config->hash_seed = rss_hash_seed_ipv6.bf.seed;
			for (index = 0; index < ADPT_RSS_HASH_IP_MIX_MAX_NUM; index++)
			{
				config->hash_sip_mix[index] = rss_hash_mix_ipv6[index].bf.hash_mix;
				config->hash_dip_mix[index] =
				rss_hash_mix_ipv6[index + ADPT_RSS_HASH_IP_MIX_MAX_NUM].bf.hash_mix;
			}
			config->hash_protocol_mix = rss_hash_mix_ipv6[8].bf.hash_mix;
			config->hash_dport_mix = rss_hash_mix_ipv6[9].bf.hash_mix;
			config->hash_sport_mix = rss_hash_mix_ipv6[10].bf.hash_mix;
			for (index = 0; index < RSS_HASH_FIN_REG_NUM; index++)
			{
				config->hash_fin_inner[index] =
						rss_hash_fin_ipv6[index].bf.fin_inner;
				config->hash_fin_outer[index] =
						rss_hash_fin_ipv6[index].bf.fin_outer;
			}
		}
		else
			return SW_FAIL;
	}

	return SW_OK;
}

sw_error_t adpt_hppe_rss_hash_init(a_uint32_t dev_id)
{
	adpt_api_t *p_adpt_api = NULL;

	p_adpt_api = adpt_api_ptr_get(dev_id);

	if(p_adpt_api == NULL)
		return SW_FAIL;

	p_adpt_api->adpt_rss_hash_config_set = adpt_hppe_rss_hash_config_set;
	p_adpt_api->adpt_rss_hash_config_get = adpt_hppe_rss_hash_config_get;

	return SW_OK;
}

/**
 * @}
 */


