| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Mustafa Ismail | 1467 | 99.86% | 3 | 75.00% |
| Jakub Kiciński | 2 | 0.14% | 1 | 25.00% |
| Total | 1469 | 4 |
/* SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB */ /* Copyright (c) 2015 - 2021 Intel Corporation */ #ifndef IRDMA_CM_H #define IRDMA_CM_H #define IRDMA_MPA_REQUEST_ACCEPT 1 #define IRDMA_MPA_REQUEST_REJECT 2 /* IETF MPA -- defines */ #define IEFT_MPA_KEY_REQ "MPA ID Req Frame" #define IEFT_MPA_KEY_REP "MPA ID Rep Frame" #define IETF_MPA_KEY_SIZE 16 #define IETF_MPA_VER 1 #define IETF_MAX_PRIV_DATA_LEN 512 #define IETF_MPA_FRAME_SIZE 20 #define IETF_RTR_MSG_SIZE 4 #define IETF_MPA_V2_FLAG 0x10 #define SNDMARKER_SEQNMASK 0x000001ff #define IRDMA_MAX_IETF_SIZE 32 /* IETF RTR MSG Fields */ #define IETF_PEER_TO_PEER 0x8000 #define IETF_FLPDU_ZERO_LEN 0x4000 #define IETF_RDMA0_WRITE 0x8000 #define IETF_RDMA0_READ 0x4000 #define IETF_NO_IRD_ORD 0x3fff #define MAX_PORTS 65536 #define IRDMA_PASSIVE_STATE_INDICATED 0 #define IRDMA_DO_NOT_SEND_RESET_EVENT 1 #define IRDMA_SEND_RESET_EVENT 2 #define MAX_IRDMA_IFS 4 #define SET_ACK 1 #define SET_SYN 2 #define SET_FIN 4 #define SET_RST 8 #define TCP_OPTIONS_PADDING 3 #define IRDMA_DEFAULT_RETRYS 64 #define IRDMA_DEFAULT_RETRANS 32 #define IRDMA_DEFAULT_TTL 0x40 #define IRDMA_DEFAULT_RTT_VAR 6 #define IRDMA_DEFAULT_SS_THRESH 0x3fffffff #define IRDMA_DEFAULT_REXMIT_THRESH 8 #define IRDMA_RETRY_TIMEOUT HZ #define IRDMA_SHORT_TIME 10 #define IRDMA_LONG_TIME (2 * HZ) #define IRDMA_MAX_TIMEOUT ((unsigned long)(12 * HZ)) #define IRDMA_CM_HASHTABLE_SIZE 1024 #define IRDMA_CM_TCP_TIMER_INTERVAL 3000 #define IRDMA_CM_DEFAULT_MTU 1540 #define IRDMA_CM_DEFAULT_FRAME_CNT 10 #define IRDMA_CM_THREAD_STACK_SIZE 256 #define IRDMA_CM_DEFAULT_RCV_WND 64240 #define IRDMA_CM_DEFAULT_RCV_WND_SCALED 0x3FFFC #define IRDMA_CM_DEFAULT_RCV_WND_SCALE 2 #define IRDMA_CM_DEFAULT_FREE_PKTS 10 #define IRDMA_CM_FREE_PKT_LO_WATERMARK 2 #define IRDMA_CM_DEFAULT_MSS 536 #define IRDMA_CM_DEFAULT_MPA_VER 2 #define IRDMA_CM_DEFAULT_SEQ 0x159bf75f #define IRDMA_CM_DEFAULT_LOCAL_ID 0x3b47 #define IRDMA_CM_DEFAULT_SEQ2 0x18ed5740 #define IRDMA_CM_DEFAULT_LOCAL_ID2 0xb807 #define IRDMA_MAX_CM_BUF (IRDMA_MAX_IETF_SIZE + IETF_MAX_PRIV_DATA_LEN) enum ietf_mpa_flags { IETF_MPA_FLAGS_REJECT = 0x20, IETF_MPA_FLAGS_CRC = 0x40, IETF_MPA_FLAGS_MARKERS = 0x80, }; enum irdma_timer_type { IRDMA_TIMER_TYPE_SEND, IRDMA_TIMER_TYPE_CLOSE, }; enum option_nums { OPTION_NUM_EOL, OPTION_NUM_NONE, OPTION_NUM_MSS, OPTION_NUM_WINDOW_SCALE, OPTION_NUM_SACK_PERM, OPTION_NUM_SACK, OPTION_NUM_WRITE0 = 0xbc, }; /* cm node transition states */ enum irdma_cm_node_state { IRDMA_CM_STATE_UNKNOWN, IRDMA_CM_STATE_INITED, IRDMA_CM_STATE_LISTENING, IRDMA_CM_STATE_SYN_RCVD, IRDMA_CM_STATE_SYN_SENT, IRDMA_CM_STATE_ONE_SIDE_ESTABLISHED, IRDMA_CM_STATE_ESTABLISHED, IRDMA_CM_STATE_ACCEPTING, IRDMA_CM_STATE_MPAREQ_SENT, IRDMA_CM_STATE_MPAREQ_RCVD, IRDMA_CM_STATE_MPAREJ_RCVD, IRDMA_CM_STATE_OFFLOADED, IRDMA_CM_STATE_FIN_WAIT1, IRDMA_CM_STATE_FIN_WAIT2, IRDMA_CM_STATE_CLOSE_WAIT, IRDMA_CM_STATE_TIME_WAIT, IRDMA_CM_STATE_LAST_ACK, IRDMA_CM_STATE_CLOSING, IRDMA_CM_STATE_LISTENER_DESTROYED, IRDMA_CM_STATE_CLOSED, }; enum mpa_frame_ver { IETF_MPA_V1 = 1, IETF_MPA_V2 = 2, }; enum mpa_frame_key { MPA_KEY_REQUEST, MPA_KEY_REPLY, }; enum send_rdma0 { SEND_RDMA_READ_ZERO = 1, SEND_RDMA_WRITE_ZERO = 2, }; enum irdma_tcpip_pkt_type { IRDMA_PKT_TYPE_UNKNOWN, IRDMA_PKT_TYPE_SYN, IRDMA_PKT_TYPE_SYNACK, IRDMA_PKT_TYPE_ACK, IRDMA_PKT_TYPE_FIN, IRDMA_PKT_TYPE_RST, }; enum irdma_cm_listener_state { IRDMA_CM_LISTENER_PASSIVE_STATE = 1, IRDMA_CM_LISTENER_ACTIVE_STATE = 2, IRDMA_CM_LISTENER_EITHER_STATE = 3, }; /* CM event codes */ enum irdma_cm_event_type { IRDMA_CM_EVENT_UNKNOWN, IRDMA_CM_EVENT_ESTABLISHED, IRDMA_CM_EVENT_MPA_REQ, IRDMA_CM_EVENT_MPA_CONNECT, IRDMA_CM_EVENT_MPA_ACCEPT, IRDMA_CM_EVENT_MPA_REJECT, IRDMA_CM_EVENT_MPA_ESTABLISHED, IRDMA_CM_EVENT_CONNECTED, IRDMA_CM_EVENT_RESET, IRDMA_CM_EVENT_ABORTED, }; struct ietf_mpa_v1 { u8 key[IETF_MPA_KEY_SIZE]; u8 flags; u8 rev; __be16 priv_data_len; u8 priv_data[]; }; struct ietf_rtr_msg { __be16 ctrl_ird; __be16 ctrl_ord; }; struct ietf_mpa_v2 { u8 key[IETF_MPA_KEY_SIZE]; u8 flags; u8 rev; __be16 priv_data_len; struct ietf_rtr_msg rtr_msg; u8 priv_data[]; }; struct option_base { u8 optionnum; u8 len; }; struct option_mss { u8 optionnum; u8 len; __be16 mss; }; struct option_windowscale { u8 optionnum; u8 len; u8 shiftcount; }; union all_known_options { char eol; struct option_base base; struct option_mss mss; struct option_windowscale windowscale; }; struct irdma_timer_entry { struct list_head list; unsigned long timetosend; /* jiffies */ struct irdma_puda_buf *sqbuf; u32 type; u32 retrycount; u32 retranscount; u32 context; u32 send_retrans; int close_when_complete; }; /* CM context params */ struct irdma_cm_tcp_context { u8 client; u32 loc_seq_num; u32 loc_ack_num; u32 rem_ack_num; u32 rcv_nxt; u32 loc_id; u32 rem_id; u32 snd_wnd; u32 max_snd_wnd; u32 rcv_wnd; u32 mss; u8 snd_wscale; u8 rcv_wscale; }; struct irdma_apbvt_entry { struct hlist_node hlist; u32 use_cnt; u16 port; }; struct irdma_cm_listener { struct list_head list; struct iw_cm_id *cm_id; struct irdma_cm_core *cm_core; struct irdma_device *iwdev; struct list_head child_listen_list; struct irdma_apbvt_entry *apbvt_entry; enum irdma_cm_listener_state listener_state; refcount_t refcnt; atomic_t pend_accepts_cnt; u32 loc_addr[4]; u32 reused_node; int backlog; u16 loc_port; u16 vlan_id; u8 loc_mac[ETH_ALEN]; u8 user_pri; u8 tos; bool qhash_set:1; bool ipv4:1; }; struct irdma_kmem_info { void *addr; u32 size; }; struct irdma_mpa_priv_info { const void *addr; u32 size; }; struct irdma_cm_node { struct irdma_qp *iwqp; struct irdma_device *iwdev; struct irdma_sc_dev *dev; struct irdma_cm_tcp_context tcp_cntxt; struct irdma_cm_core *cm_core; struct irdma_timer_entry *send_entry; struct irdma_timer_entry *close_entry; struct irdma_cm_listener *listener; struct list_head timer_entry; struct list_head reset_entry; struct list_head teardown_entry; struct irdma_apbvt_entry *apbvt_entry; struct rcu_head rcu_head; struct irdma_mpa_priv_info pdata; struct irdma_sc_ah *ah; union { struct ietf_mpa_v1 mpa_frame; struct ietf_mpa_v2 mpa_v2_frame; }; struct irdma_kmem_info mpa_hdr; struct iw_cm_id *cm_id; struct hlist_node list; struct completion establish_comp; spinlock_t retrans_list_lock; /* protect CM node rexmit updates*/ atomic_t passive_state; refcount_t refcnt; enum irdma_cm_node_state state; enum send_rdma0 send_rdma0_op; enum mpa_frame_ver mpa_frame_rev; u32 loc_addr[4], rem_addr[4]; u16 loc_port, rem_port; int apbvt_set; int accept_pend; u16 vlan_id; u16 ird_size; u16 ord_size; u16 mpav2_ird_ord; u16 lsmm_size; u8 pdata_buf[IETF_MAX_PRIV_DATA_LEN]; u8 loc_mac[ETH_ALEN]; u8 rem_mac[ETH_ALEN]; u8 user_pri; u8 tos; bool ack_rcvd:1; bool qhash_set:1; bool ipv4:1; bool snd_mark_en:1; bool rcv_mark_en:1; bool do_lpb:1; bool accelerated:1; }; /* Used by internal CM APIs to pass CM information*/ struct irdma_cm_info { struct iw_cm_id *cm_id; u16 loc_port; u16 rem_port; u32 loc_addr[4]; u32 rem_addr[4]; u32 qh_qpid; u16 vlan_id; int backlog; u8 user_pri; u8 tos; bool ipv4; }; struct irdma_cm_event { enum irdma_cm_event_type type; struct irdma_cm_info cm_info; struct work_struct event_work; struct irdma_cm_node *cm_node; }; struct irdma_cm_core { struct irdma_device *iwdev; struct irdma_sc_dev *dev; struct list_head listen_list; DECLARE_HASHTABLE(cm_hash_tbl, 8); DECLARE_HASHTABLE(apbvt_hash_tbl, 8); struct timer_list tcp_timer; struct workqueue_struct *event_wq; spinlock_t ht_lock; /* protect CM node (active side) list */ spinlock_t listen_list_lock; /* protect listener list */ spinlock_t apbvt_lock; /*serialize apbvt add/del entries*/ u64 stats_nodes_created; u64 stats_nodes_destroyed; u64 stats_listen_created; u64 stats_listen_destroyed; u64 stats_listen_nodes_created; u64 stats_listen_nodes_destroyed; u64 stats_lpbs; u64 stats_accepts; u64 stats_rejects; u64 stats_connect_errs; u64 stats_passive_errs; u64 stats_pkt_retrans; u64 stats_backlog_drops; struct irdma_puda_buf *(*form_cm_frame)(struct irdma_cm_node *cm_node, struct irdma_kmem_info *options, struct irdma_kmem_info *hdr, struct irdma_mpa_priv_info *pdata, u8 flags); int (*cm_create_ah)(struct irdma_cm_node *cm_node, bool wait); void (*cm_free_ah)(struct irdma_cm_node *cm_node); }; int irdma_schedule_cm_timer(struct irdma_cm_node *cm_node, struct irdma_puda_buf *sqbuf, enum irdma_timer_type type, int send_retrans, int close_when_complete); static inline u8 irdma_tos2dscp(u8 tos) { #define IRDMA_DSCP_VAL GENMASK(7, 2) return (u8)FIELD_GET(IRDMA_DSCP_VAL, tos); } int irdma_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param); int irdma_reject(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len); int irdma_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param); int irdma_create_listen(struct iw_cm_id *cm_id, int backlog); int irdma_destroy_listen(struct iw_cm_id *cm_id); int irdma_add_arp(struct irdma_pci_f *rf, u32 *ip, bool ipv4, const u8 *mac); void irdma_cm_teardown_connections(struct irdma_device *iwdev, u32 *ipaddr, struct irdma_cm_info *nfo, bool disconnect_all); int irdma_cm_start(struct irdma_device *dev); int irdma_cm_stop(struct irdma_device *dev); bool irdma_ipv4_is_lpb(u32 loc_addr, u32 rem_addr); bool irdma_ipv6_is_lpb(u32 *loc_addr, u32 *rem_addr); int irdma_arp_table(struct irdma_pci_f *rf, u32 *ip_addr, bool ipv4, const u8 *mac_addr, u32 action); void irdma_if_notify(struct irdma_device *iwdev, struct net_device *netdev, u32 *ipaddr, bool ipv4, bool ifup); bool irdma_port_in_use(struct irdma_cm_core *cm_core, u16 port); void irdma_send_ack(struct irdma_cm_node *cm_node); void irdma_lpb_nop(struct irdma_sc_qp *qp); void irdma_rem_ref_cm_node(struct irdma_cm_node *cm_node); void irdma_add_conn_est_qh(struct irdma_cm_node *cm_node); #endif /* IRDMA_CM_H */
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