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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_ISCSI_API_H__
#define __ECORE_ISCSI_API_H__
typedef enum _ecore_status_t (*iscsi_event_cb_t)(void *context,
u8 fw_event_code,
void *fw_handle);
struct ecore_iscsi_conn {
osal_list_entry_t list_entry;
bool free_on_delete;
u16 conn_id;
u32 icid;
u32 fw_cid;
u8 layer_code;
u8 offl_flags;
u8 connect_mode;
u32 initial_ack;
dma_addr_t sq_pbl_addr;
struct ecore_chain r2tq;
struct ecore_chain xhq;
struct ecore_chain uhq;
struct tcp_upload_params *tcp_upload_params_virt_addr;
dma_addr_t tcp_upload_params_phys_addr;
struct scsi_terminate_extra_params *queue_cnts_virt_addr;
dma_addr_t queue_cnts_phys_addr;
dma_addr_t syn_phy_addr;
u16 syn_ip_payload_length;
u8 local_mac[6];
u8 remote_mac[6];
u16 vlan_id;
u8 tcp_flags;
u8 ip_version;
u32 remote_ip[4];
u32 local_ip[4];
u8 ka_max_probe_cnt;
u8 dup_ack_theshold;
u32 rcv_next;
u32 snd_una;
u32 snd_next;
u32 snd_max;
u32 snd_wnd;
u32 rcv_wnd;
u32 snd_wl1;
u32 cwnd;
u32 ss_thresh;
u16 srtt;
u16 rtt_var;
u32 ts_recent;
u32 ts_recent_age;
u32 total_rt;
u32 ka_timeout_delta;
u32 rt_timeout_delta;
u8 dup_ack_cnt;
u8 snd_wnd_probe_cnt;
u8 ka_probe_cnt;
u8 rt_cnt;
u32 flow_label;
u32 ka_timeout;
u32 ka_interval;
u32 max_rt_time;
u32 initial_rcv_wnd;
u8 ttl;
u8 tos_or_tc;
u16 remote_port;
u16 local_port;
u16 mss;
u8 snd_wnd_scale;
u8 rcv_wnd_scale;
u16 da_timeout_value;
u8 ack_frequency;
u8 update_flag;
#define ECORE_ISCSI_CONN_HD_EN 0x01
#define ECORE_ISCSI_CONN_DD_EN 0x02
#define ECORE_ISCSI_CONN_INITIAL_R2T 0x04
#define ECORE_ISCSI_CONN_IMMEDIATE_DATA 0x08
u8 default_cq;
u32 max_seq_size;
u32 max_recv_pdu_length;
u32 max_send_pdu_length;
u32 first_seq_length;
u32 exp_stat_sn;
u32 stat_sn;
u16 physical_q0;
u16 physical_q1;
u8 abortive_dsconnect;
u8 dif_on_immediate;
#define ECORE_ISCSI_CONN_DIF_ON_IMM_DIS 0
#define ECORE_ISCSI_CONN_DIF_ON_IMM_DEFAULT 1
#define ECORE_ISCSI_CONN_DIF_ON_IMM_LUN_MAPPER 2
dma_addr_t lun_mapper_phys_addr;
u32 initial_ref_tag;
u16 application_tag;
u16 application_tag_mask;
u8 validate_guard;
u8 validate_app_tag;
u8 validate_ref_tag;
u8 forward_guard;
u8 forward_app_tag;
u8 forward_ref_tag;
u8 interval_size; /* 0=512B, 1=4KB */
u8 network_interface; /* 0=None, 1=DIF */
u8 host_interface; /* 0=None, 1=DIF, 2=DIX */
u8 ref_tag_mask; /* mask for refernce tag handling */
u8 forward_app_tag_with_mask;
u8 forward_ref_tag_with_mask;
u8 ignore_app_tag;
u8 initial_ref_tag_is_valid;
u8 host_guard_type; /* 0 = IP checksum, 1 = CRC */
u8 protection_type; /* 1/2/3 - Protection Type */
u8 crc_seed; /* 0=0x0000, 1=0xffff */
u8 keep_ref_tag_const;
};
struct ecore_iscsi_stats
{
u64 iscsi_rx_bytes_cnt;
u64 iscsi_rx_packet_cnt;
u64 iscsi_rx_new_ooo_isle_events_cnt;
u32 iscsi_cmdq_threshold_cnt;
u32 iscsi_rq_threshold_cnt;
u32 iscsi_immq_threshold_cnt;
u64 iscsi_rx_dropped_pdus_task_not_valid;
u64 iscsi_rx_data_pdu_cnt;
u64 iscsi_rx_r2t_pdu_cnt;
u64 iscsi_rx_total_pdu_cnt;
u64 iscsi_tx_go_to_slow_start_event_cnt;
u64 iscsi_tx_fast_retransmit_event_cnt;
u64 iscsi_tx_data_pdu_cnt;
u64 iscsi_tx_r2t_pdu_cnt;
u64 iscsi_tx_total_pdu_cnt;
u64 iscsi_tx_bytes_cnt;
u64 iscsi_tx_packet_cnt;
};
/**
* @brief ecore_iscsi_acquire_connection - allocate resources,
* provides connecion handle (CID)as out parameter.
*
* @param p_path
* @param p_conn partially initialized incoming container of
* iSCSI connection data
* @return enum _ecore_status_t
*/
enum _ecore_status_t
ecore_iscsi_acquire_connection(struct ecore_hwfn *p_hwfn,
struct ecore_iscsi_conn *p_in_conn,
struct ecore_iscsi_conn **p_out_conn);
void OSAL_IOMEM *ecore_iscsi_get_db_addr(struct ecore_hwfn *p_hwfn,
u32 cid);
void OSAL_IOMEM *ecore_iscsi_get_global_cmdq_cons(struct ecore_hwfn *p_hwfn,
u8 relative_q_id);
void OSAL_IOMEM *ecore_iscsi_get_primary_bdq_prod(struct ecore_hwfn *p_hwfn,
u8 bdq_id);
void OSAL_IOMEM *ecore_iscsi_get_secondary_bdq_prod(struct ecore_hwfn *p_hwfn,
u8 bdq_id);
/**
* @brief ecore_iscsi_offload_connection - offload previously
* allocated iSCSI connection
*
* @param p_path
* @param p_conn container of iSCSI connection data
*
* @return enum _ecore_status_t
*/
enum _ecore_status_t
ecore_iscsi_offload_connection(struct ecore_hwfn *p_hwfn,
struct ecore_iscsi_conn *p_conn);
/**
* @brief ecore_iscsi_release_connection - deletes connecton
* resources (incliding container of iSCSI connection
* data)
*
* @param p_path
* @param p_conn container of iSCSI connection data
*/
void ecore_iscsi_release_connection(struct ecore_hwfn *p_hwfn,
struct ecore_iscsi_conn *p_conn);
/**
* @brief ecore_iscsi_terminate_connection - destroys previously
* offloaded iSCSI connection
*
* @param p_path
* @param p_conn container of iSCSI connection data
*
* @return enum _ecore_status_t
*/
enum _ecore_status_t
ecore_iscsi_terminate_connection(struct ecore_hwfn *p_hwfn,
struct ecore_iscsi_conn *p_conn);
/**
* @brief ecore_iscsi_update_connection - updates previously
* offloaded iSCSI connection
*
*
* @param p_path
* @param p_conn container of iSCSI connection data
*
* @return enum _ecore_status_t
*/
enum _ecore_status_t
ecore_iscsi_update_connection(struct ecore_hwfn *p_hwfn,
struct ecore_iscsi_conn *p_conn);
/**
* @brief ecore_iscsi_mac_update_connection - updates remote MAC for previously
* offloaded iSCSI connection
*
*
* @param p_path
* @param p_conn container of iSCSI connection data
*
* @return enum _ecore_status_t
*/
enum _ecore_status_t
ecore_iscsi_update_remote_mac(struct ecore_hwfn *p_hwfn,
struct ecore_iscsi_conn *p_conn);
/**
* @brief ecore_iscsi_clear_connection_sq - clear SQ
* offloaded iSCSI connection
*
*
* @param p_path
* @param p_conn container of iSCSI connection data
*
* @return enum _ecore_status_t
*/
enum _ecore_status_t
ecore_iscsi_clear_connection_sq(struct ecore_hwfn *p_hwfn,
struct ecore_iscsi_conn *p_conn);
/**
* @brief ecore_sp_iscsi_func_start
*
* This ramrod inits iSCSI functionality in FW
*
* @param p_path
* @param comp_mode
* @param comp_addr
*
* @return enum _ecore_status_t
*/
enum _ecore_status_t
ecore_sp_iscsi_func_start(struct ecore_hwfn *p_hwfn,
enum spq_mode comp_mode,
struct ecore_spq_comp_cb *p_comp_addr,
void *async_event_context,
iscsi_event_cb_t async_event_cb);
enum _ecore_status_t
ecore_sp_iscsi_func_stop(struct ecore_hwfn *p_hwfn,
enum spq_mode comp_mode,
struct ecore_spq_comp_cb *p_comp_addr);
enum _ecore_status_t
ecore_iscsi_get_stats(struct ecore_hwfn *p_hwfn,
struct ecore_iscsi_stats *stats);
#endif
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