/* QLogic qed NIC Driver
 * Copyright (c) 2015 QLogic Corporation
 *
 * This software is available under the terms of the GNU General Public License
 * (GPL) Version 2, available from the file COPYING in the main directory of
 * this source tree.
 */

#ifndef __TCP_COMMON__
#define __TCP_COMMON__

#define TCP_INVALID_TIMEOUT_VAL -1

enum tcp_connect_mode {
	TCP_CONNECT_ACTIVE,
	TCP_CONNECT_PASSIVE,
	MAX_TCP_CONNECT_MODE
};

struct tcp_init_params {
	__le32 max_cwnd;
	__le16 dup_ack_threshold;
	__le16 tx_sws_timer;
	__le16 min_rto;
	__le16 min_rto_rt;
	__le16 max_rto;
	u8 maxfinrt;
	u8 reserved[1];
};

enum tcp_ip_version {
	TCP_IPV4,
	TCP_IPV6,
	MAX_TCP_IP_VERSION
};

struct tcp_offload_params {
	__le16 local_mac_addr_lo;
	__le16 local_mac_addr_mid;
	__le16 local_mac_addr_hi;
	__le16 remote_mac_addr_lo;
	__le16 remote_mac_addr_mid;
	__le16 remote_mac_addr_hi;
	__le16 vlan_id;
	u8 flags;
#define TCP_OFFLOAD_PARAMS_TS_EN_MASK         0x1
#define TCP_OFFLOAD_PARAMS_TS_EN_SHIFT        0
#define TCP_OFFLOAD_PARAMS_DA_EN_MASK         0x1
#define TCP_OFFLOAD_PARAMS_DA_EN_SHIFT        1
#define TCP_OFFLOAD_PARAMS_KA_EN_MASK         0x1
#define TCP_OFFLOAD_PARAMS_KA_EN_SHIFT        2
#define TCP_OFFLOAD_PARAMS_NAGLE_EN_MASK      0x1
#define TCP_OFFLOAD_PARAMS_NAGLE_EN_SHIFT     3
#define TCP_OFFLOAD_PARAMS_DA_CNT_EN_MASK     0x1
#define TCP_OFFLOAD_PARAMS_DA_CNT_EN_SHIFT    4
#define TCP_OFFLOAD_PARAMS_FIN_SENT_MASK      0x1
#define TCP_OFFLOAD_PARAMS_FIN_SENT_SHIFT     5
#define TCP_OFFLOAD_PARAMS_FIN_RECEIVED_MASK  0x1
#define TCP_OFFLOAD_PARAMS_FIN_RECEIVED_SHIFT 6
#define TCP_OFFLOAD_PARAMS_RESERVED0_MASK     0x1
#define TCP_OFFLOAD_PARAMS_RESERVED0_SHIFT    7
	u8 ip_version;
	__le32 remote_ip[4];
	__le32 local_ip[4];
	__le32 flow_label;
	u8 ttl;
	u8 tos_or_tc;
	__le16 remote_port;
	__le16 local_port;
	__le16 mss;
	u8 rcv_wnd_scale;
	u8 connect_mode;
	__le16 srtt;
	__le32 cwnd;
	__le32 ss_thresh;
	__le16 reserved1;
	u8 ka_max_probe_cnt;
	u8 dup_ack_theshold;
	__le32 rcv_next;
	__le32 snd_una;
	__le32 snd_next;
	__le32 snd_max;
	__le32 snd_wnd;
	__le32 rcv_wnd;
	__le32 snd_wl1;
	__le32 ts_time;
	__le32 ts_recent;
	__le32 ts_recent_age;
	__le32 total_rt;
	__le32 ka_timeout_delta;
	__le32 rt_timeout_delta;
	u8 dup_ack_cnt;
	u8 snd_wnd_probe_cnt;
	u8 ka_probe_cnt;
	u8 rt_cnt;
	__le16 rtt_var;
	__le16 reserved2;
	__le32 ka_timeout;
	__le32 ka_interval;
	__le32 max_rt_time;
	__le32 initial_rcv_wnd;
	u8 snd_wnd_scale;
	u8 ack_frequency;
	__le16 da_timeout_value;
	__le32 ts_ticks_per_second;
};

struct tcp_offload_params_opt2 {
	__le16 local_mac_addr_lo;
	__le16 local_mac_addr_mid;
	__le16 local_mac_addr_hi;
	__le16 remote_mac_addr_lo;
	__le16 remote_mac_addr_mid;
	__le16 remote_mac_addr_hi;
	__le16 vlan_id;
	u8 flags;
#define TCP_OFFLOAD_PARAMS_OPT2_TS_EN_MASK      0x1
#define TCP_OFFLOAD_PARAMS_OPT2_TS_EN_SHIFT     0
#define TCP_OFFLOAD_PARAMS_OPT2_DA_EN_MASK      0x1
#define TCP_OFFLOAD_PARAMS_OPT2_DA_EN_SHIFT     1
#define TCP_OFFLOAD_PARAMS_OPT2_KA_EN_MASK      0x1
#define TCP_OFFLOAD_PARAMS_OPT2_KA_EN_SHIFT     2
#define TCP_OFFLOAD_PARAMS_OPT2_RESERVED0_MASK  0x1F
#define TCP_OFFLOAD_PARAMS_OPT2_RESERVED0_SHIFT 3
	u8 ip_version;
	__le32 remote_ip[4];
	__le32 local_ip[4];
	__le32 flow_label;
	u8 ttl;
	u8 tos_or_tc;
	__le16 remote_port;
	__le16 local_port;
	__le16 mss;
	u8 rcv_wnd_scale;
	u8 connect_mode;
	__le16 syn_ip_payload_length;
	__le32 syn_phy_addr_lo;
	__le32 syn_phy_addr_hi;
	__le32 reserved1[22];
};

enum tcp_seg_placement_event {
	TCP_EVENT_ADD_PEN,
	TCP_EVENT_ADD_NEW_ISLE,
	TCP_EVENT_ADD_ISLE_RIGHT,
	TCP_EVENT_ADD_ISLE_LEFT,
	TCP_EVENT_JOIN,
	TCP_EVENT_NOP,
	MAX_TCP_SEG_PLACEMENT_EVENT
};

struct tcp_update_params {
	__le16 flags;
#define TCP_UPDATE_PARAMS_REMOTE_MAC_ADDR_CHANGED_MASK   0x1
#define TCP_UPDATE_PARAMS_REMOTE_MAC_ADDR_CHANGED_SHIFT  0
#define TCP_UPDATE_PARAMS_MSS_CHANGED_MASK               0x1
#define TCP_UPDATE_PARAMS_MSS_CHANGED_SHIFT              1
#define TCP_UPDATE_PARAMS_TTL_CHANGED_MASK               0x1
#define TCP_UPDATE_PARAMS_TTL_CHANGED_SHIFT              2
#define TCP_UPDATE_PARAMS_TOS_OR_TC_CHANGED_MASK         0x1
#define TCP_UPDATE_PARAMS_TOS_OR_TC_CHANGED_SHIFT        3
#define TCP_UPDATE_PARAMS_KA_TIMEOUT_CHANGED_MASK        0x1
#define TCP_UPDATE_PARAMS_KA_TIMEOUT_CHANGED_SHIFT       4
#define TCP_UPDATE_PARAMS_KA_INTERVAL_CHANGED_MASK       0x1
#define TCP_UPDATE_PARAMS_KA_INTERVAL_CHANGED_SHIFT      5
#define TCP_UPDATE_PARAMS_MAX_RT_TIME_CHANGED_MASK       0x1
#define TCP_UPDATE_PARAMS_MAX_RT_TIME_CHANGED_SHIFT      6
#define TCP_UPDATE_PARAMS_FLOW_LABEL_CHANGED_MASK        0x1
#define TCP_UPDATE_PARAMS_FLOW_LABEL_CHANGED_SHIFT       7
#define TCP_UPDATE_PARAMS_INITIAL_RCV_WND_CHANGED_MASK   0x1
#define TCP_UPDATE_PARAMS_INITIAL_RCV_WND_CHANGED_SHIFT  8
#define TCP_UPDATE_PARAMS_KA_MAX_PROBE_CNT_CHANGED_MASK  0x1
#define TCP_UPDATE_PARAMS_KA_MAX_PROBE_CNT_CHANGED_SHIFT 9
#define TCP_UPDATE_PARAMS_KA_EN_CHANGED_MASK             0x1
#define TCP_UPDATE_PARAMS_KA_EN_CHANGED_SHIFT            10
#define TCP_UPDATE_PARAMS_NAGLE_EN_CHANGED_MASK          0x1
#define TCP_UPDATE_PARAMS_NAGLE_EN_CHANGED_SHIFT         11
#define TCP_UPDATE_PARAMS_KA_EN_MASK                     0x1
#define TCP_UPDATE_PARAMS_KA_EN_SHIFT                    12
#define TCP_UPDATE_PARAMS_NAGLE_EN_MASK                  0x1
#define TCP_UPDATE_PARAMS_NAGLE_EN_SHIFT                 13
#define TCP_UPDATE_PARAMS_KA_RESTART_MASK                0x1
#define TCP_UPDATE_PARAMS_KA_RESTART_SHIFT               14
#define TCP_UPDATE_PARAMS_RETRANSMIT_RESTART_MASK        0x1
#define TCP_UPDATE_PARAMS_RETRANSMIT_RESTART_SHIFT       15
	__le16 remote_mac_addr_lo;
	__le16 remote_mac_addr_mid;
	__le16 remote_mac_addr_hi;
	__le16 mss;
	u8 ttl;
	u8 tos_or_tc;
	__le32 ka_timeout;
	__le32 ka_interval;
	__le32 max_rt_time;
	__le32 flow_label;
	__le32 initial_rcv_wnd;
	u8 ka_max_probe_cnt;
	u8 reserved1[7];
};

struct tcp_upload_params {
	__le32 rcv_next;
	__le32 snd_una;
	__le32 snd_next;
	__le32 snd_max;
	__le32 snd_wnd;
	__le32 rcv_wnd;
	__le32 snd_wl1;
	__le32 cwnd;
	__le32 ss_thresh;
	__le16 srtt;
	__le16 rtt_var;
	__le32 ts_time;
	__le32 ts_recent;
	__le32 ts_recent_age;
	__le32 total_rt;
	__le32 ka_timeout_delta;
	__le32 rt_timeout_delta;
	u8 dup_ack_cnt;
	u8 snd_wnd_probe_cnt;
	u8 ka_probe_cnt;
	u8 rt_cnt;
	__le32 reserved;
};

#endif /* __TCP_COMMON__ */