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/*
* Copyright (c) 2017-2018 Cavium, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*
*/
#ifndef __ECORE_LL2_H__
#define __ECORE_LL2_H__
#include "ecore.h"
#include "ecore_hsi_eth.h"
#include "ecore_chain.h"
#include "ecore_hsi_common.h"
#include "ecore_ll2_api.h"
#include "ecore_sp_api.h"
/* ECORE LL2: internal structures and functions*/
#define ECORE_MAX_NUM_OF_LL2_CONNECTIONS (4)
static OSAL_INLINE u8 ecore_ll2_handle_to_queue_id(struct ecore_hwfn *p_hwfn,
u8 handle)
{
return p_hwfn->hw_info.resc_start[ECORE_LL2_QUEUE] + handle;
}
struct ecore_ll2_rx_packet
{
osal_list_entry_t list_entry;
struct core_rx_bd_with_buff_len *rxq_bd;
dma_addr_t rx_buf_addr;
u16 buf_length;
void *cookie;
u8 placement_offset;
u16 parse_flags;
u16 packet_length;
u16 vlan;
u32 opaque_data[2];
};
struct ecore_ll2_tx_packet
{
osal_list_entry_t list_entry;
u16 bd_used;
bool notify_fw;
void *cookie;
struct {
struct core_tx_bd *txq_bd;
dma_addr_t tx_frag;
u16 frag_len;
} bds_set[1];
/* Flexible Array of bds_set determined by max_bds_per_packet */
};
struct ecore_ll2_rx_queue {
osal_spinlock_t lock;
struct ecore_chain rxq_chain;
struct ecore_chain rcq_chain;
u8 rx_sb_index;
bool b_cb_registred;
__le16 *p_fw_cons;
osal_list_t active_descq;
osal_list_t free_descq;
osal_list_t posting_descq;
struct ecore_ll2_rx_packet *descq_array;
void OSAL_IOMEM *set_prod_addr;
};
struct ecore_ll2_tx_queue {
osal_spinlock_t lock;
struct ecore_chain txq_chain;
u8 tx_sb_index;
bool b_cb_registred;
__le16 *p_fw_cons;
osal_list_t active_descq;
osal_list_t free_descq;
osal_list_t sending_descq;
struct ecore_ll2_tx_packet *descq_array;
struct ecore_ll2_tx_packet *cur_send_packet;
struct ecore_ll2_tx_packet cur_completing_packet;
u16 cur_completing_bd_idx;
void OSAL_IOMEM *doorbell_addr;
u16 bds_idx;
u16 cur_send_frag_num;
u16 cur_completing_frag_num;
bool b_completing_packet;
};
struct ecore_ll2_info {
osal_mutex_t mutex;
struct ecore_ll2_acquire_data_inputs input;
u32 cid;
u8 my_id;
u8 queue_id;
u8 tx_stats_id;
bool b_active;
enum core_tx_dest tx_dest;
u8 tx_stats_en;
u8 main_func_queue;
struct ecore_ll2_rx_queue rx_queue;
struct ecore_ll2_tx_queue tx_queue;
struct ecore_ll2_cbs cbs;
};
/**
* @brief ecore_ll2_alloc - Allocates LL2 connections set
*
* @param p_hwfn
*
* @return enum _ecore_status_t
*/
enum _ecore_status_t ecore_ll2_alloc(struct ecore_hwfn *p_hwfn);
/**
* @brief ecore_ll2_setup - Inits LL2 connections set
*
* @param p_hwfn
*
*/
void ecore_ll2_setup(struct ecore_hwfn *p_hwfn);
/**
* @brief ecore_ll2_free - Releases LL2 connections set
*
* @param p_hwfn
*
*/
void ecore_ll2_free(struct ecore_hwfn *p_hwfn);
/**
* @brief ecore_ll2_get_fragment_of_tx_packet
*
* @param p_hwfn
* @param connection_handle LL2 connection's handle
* obtained from
* ecore_ll2_require_connection
* @param addr
* @param last_fragment)
*
* @return enum _ecore_status_t
*/
enum _ecore_status_t
ecore_ll2_get_fragment_of_tx_packet(struct ecore_hwfn *p_hwfn,
u8 connection_handle,
dma_addr_t *addr,
bool *last_fragment);
#endif /*__ECORE_LL2_H__*/
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