11f4d4ed6SAlexander Lobakin /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */ 267b40dccSKalderon, Michal /* QLogic qed NIC Driver 367b40dccSKalderon, Michal * Copyright (c) 2015-2017 QLogic Corporation 4663eacd8SAlexander Lobakin * Copyright (c) 2019-2020 Marvell International Ltd. 567b40dccSKalderon, Michal */ 61f4d4ed6SAlexander Lobakin 767b40dccSKalderon, Michal #ifndef _QED_IWARP_H 867b40dccSKalderon, Michal #define _QED_IWARP_H 967b40dccSKalderon, Michal 1067b40dccSKalderon, Michal enum qed_iwarp_qp_state { 1167b40dccSKalderon, Michal QED_IWARP_QP_STATE_IDLE, 1267b40dccSKalderon, Michal QED_IWARP_QP_STATE_RTS, 1367b40dccSKalderon, Michal QED_IWARP_QP_STATE_TERMINATE, 1467b40dccSKalderon, Michal QED_IWARP_QP_STATE_CLOSING, 1567b40dccSKalderon, Michal QED_IWARP_QP_STATE_ERROR, 1667b40dccSKalderon, Michal }; 1767b40dccSKalderon, Michal 1867b40dccSKalderon, Michal enum qed_iwarp_qp_state qed_roce2iwarp_state(enum qed_roce_qp_state state); 1967b40dccSKalderon, Michal 20456a5849SKalderon, Michal #define QED_IWARP_PREALLOC_CNT (256) 21456a5849SKalderon, Michal 22b5c29ca7SKalderon, Michal #define QED_IWARP_LL2_SYN_TX_SIZE (128) 23b5c29ca7SKalderon, Michal #define QED_IWARP_LL2_SYN_RX_SIZE (256) 24d1abfd0bSMichal Kalderon 25d1abfd0bSMichal Kalderon #define QED_IWARP_LL2_OOO_DEF_TX_SIZE (256) 26d1abfd0bSMichal Kalderon #define QED_IWARP_MAX_OOO (16) 27d1abfd0bSMichal Kalderon #define QED_IWARP_LL2_OOO_MAX_RX_SIZE (16384) 28d1abfd0bSMichal Kalderon 29b5c29ca7SKalderon, Michal #define QED_IWARP_HANDLE_INVAL (0xff) 30b5c29ca7SKalderon, Michal 31b5c29ca7SKalderon, Michal struct qed_iwarp_ll2_buff { 32d531038eSMichal Kalderon struct qed_iwarp_ll2_buff *piggy_buf; 33b5c29ca7SKalderon, Michal void *data; 34b5c29ca7SKalderon, Michal dma_addr_t data_phys_addr; 35b5c29ca7SKalderon, Michal u32 buff_size; 36b5c29ca7SKalderon, Michal }; 37b5c29ca7SKalderon, Michal 38fcb39f6cSMichal Kalderon struct qed_iwarp_ll2_mpa_buf { 39fcb39f6cSMichal Kalderon struct list_head list_entry; 40fcb39f6cSMichal Kalderon struct qed_iwarp_ll2_buff *ll2_buf; 41fcb39f6cSMichal Kalderon struct unaligned_opaque_data data; 42fcb39f6cSMichal Kalderon u16 tcp_payload_len; 43fcb39f6cSMichal Kalderon u8 placement_offset; 44fcb39f6cSMichal Kalderon }; 45fcb39f6cSMichal Kalderon 46c7d1d839SMichal Kalderon /* In some cases a fpdu will arrive with only one byte of the header, in this 47c7d1d839SMichal Kalderon * case the fpdu_length will be partial (contain only higher byte and 48c7d1d839SMichal Kalderon * incomplete bytes will contain the invalid value 49c7d1d839SMichal Kalderon */ 50c7d1d839SMichal Kalderon #define QED_IWARP_INVALID_INCOMPLETE_BYTES 0xffff 51c7d1d839SMichal Kalderon 52469981b1SMichal Kalderon struct qed_iwarp_fpdu { 53469981b1SMichal Kalderon struct qed_iwarp_ll2_buff *mpa_buf; 54469981b1SMichal Kalderon void *mpa_frag_virt; 55469981b1SMichal Kalderon dma_addr_t mpa_frag; 56469981b1SMichal Kalderon dma_addr_t pkt_hdr; 57469981b1SMichal Kalderon u16 mpa_frag_len; 58469981b1SMichal Kalderon u16 fpdu_length; 59469981b1SMichal Kalderon u16 incomplete_bytes; 60469981b1SMichal Kalderon u8 pkt_hdr_size; 61469981b1SMichal Kalderon }; 62469981b1SMichal Kalderon 6367b40dccSKalderon, Michal struct qed_iwarp_info { 6465a91a6cSKalderon, Michal struct list_head listen_list; /* qed_iwarp_listener */ 65456a5849SKalderon, Michal struct list_head ep_list; /* qed_iwarp_ep */ 66456a5849SKalderon, Michal struct list_head ep_free_list; /* pre-allocated ep's */ 67fcb39f6cSMichal Kalderon struct list_head mpa_buf_list; /* list of mpa_bufs */ 68fcb39f6cSMichal Kalderon struct list_head mpa_buf_pending_list; 6967b40dccSKalderon, Michal spinlock_t iw_lock; /* for iwarp resources */ 7067b40dccSKalderon, Michal spinlock_t qp_lock; /* for teardown races */ 7167b40dccSKalderon, Michal u32 rcv_wnd_scale; 72da090917STomer Tayar u16 rcv_wnd_size; 7367b40dccSKalderon, Michal u16 max_mtu; 7467b40dccSKalderon, Michal u8 mac_addr[ETH_ALEN]; 7567b40dccSKalderon, Michal u8 crc_needed; 7667b40dccSKalderon, Michal u8 tcp_flags; 77b5c29ca7SKalderon, Michal u8 ll2_syn_handle; 78d1abfd0bSMichal Kalderon u8 ll2_ooo_handle; 79ae3488ffSMichal Kalderon u8 ll2_mpa_handle; 8067b40dccSKalderon, Michal u8 peer2peer; 8167b40dccSKalderon, Michal enum mpa_negotiation_mode mpa_rev; 8267b40dccSKalderon, Michal enum mpa_rtr_type rtr_type; 83469981b1SMichal Kalderon struct qed_iwarp_fpdu *partial_fpdus; 84fcb39f6cSMichal Kalderon struct qed_iwarp_ll2_mpa_buf *mpa_bufs; 851e28eaadSMichal Kalderon u8 *mpa_intermediate_buf; 86469981b1SMichal Kalderon u16 max_num_partial_fpdus; 8767b40dccSKalderon, Michal }; 8867b40dccSKalderon, Michal 89456a5849SKalderon, Michal enum qed_iwarp_ep_state { 90456a5849SKalderon, Michal QED_IWARP_EP_INIT, 91456a5849SKalderon, Michal QED_IWARP_EP_MPA_REQ_RCVD, 92456a5849SKalderon, Michal QED_IWARP_EP_MPA_OFFLOADED, 93456a5849SKalderon, Michal QED_IWARP_EP_ESTABLISHED, 94456a5849SKalderon, Michal QED_IWARP_EP_CLOSED 95456a5849SKalderon, Michal }; 96456a5849SKalderon, Michal 97456a5849SKalderon, Michal union async_output { 98456a5849SKalderon, Michal struct iwarp_eqe_data_mpa_async_completion mpa_response; 99456a5849SKalderon, Michal struct iwarp_eqe_data_tcp_async_completion mpa_request; 100456a5849SKalderon, Michal }; 101456a5849SKalderon, Michal 102456a5849SKalderon, Michal #define QED_MAX_PRIV_DATA_LEN (512) 103456a5849SKalderon, Michal struct qed_iwarp_ep_memory { 104456a5849SKalderon, Michal u8 in_pdata[QED_MAX_PRIV_DATA_LEN]; 105456a5849SKalderon, Michal u8 out_pdata[QED_MAX_PRIV_DATA_LEN]; 106456a5849SKalderon, Michal union async_output async_output; 107456a5849SKalderon, Michal }; 108456a5849SKalderon, Michal 109456a5849SKalderon, Michal /* Endpoint structure represents a TCP connection. This connection can be 110456a5849SKalderon, Michal * associated with a QP or not (in which case QP==NULL) 111456a5849SKalderon, Michal */ 112456a5849SKalderon, Michal struct qed_iwarp_ep { 113456a5849SKalderon, Michal struct list_head list_entry; 114456a5849SKalderon, Michal struct qed_rdma_qp *qp; 115456a5849SKalderon, Michal struct qed_iwarp_ep_memory *ep_buffer_virt; 116456a5849SKalderon, Michal dma_addr_t ep_buffer_phys; 117456a5849SKalderon, Michal enum qed_iwarp_ep_state state; 118456a5849SKalderon, Michal int sig; 119456a5849SKalderon, Michal struct qed_iwarp_cm_info cm_info; 120456a5849SKalderon, Michal enum tcp_connect_mode connect_mode; 121456a5849SKalderon, Michal enum mpa_rtr_type rtr_type; 122456a5849SKalderon, Michal enum mpa_negotiation_mode mpa_rev; 123456a5849SKalderon, Michal u32 tcp_cid; 124456a5849SKalderon, Michal u32 cid; 125456a5849SKalderon, Michal u16 mss; 126456a5849SKalderon, Michal u8 remote_mac_addr[6]; 127456a5849SKalderon, Michal u8 local_mac_addr[6]; 128456a5849SKalderon, Michal bool mpa_reply_processed; 129456a5849SKalderon, Michal 130456a5849SKalderon, Michal /* For Passive side - syn packet related data */ 131456a5849SKalderon, Michal u16 syn_ip_payload_length; 132456a5849SKalderon, Michal struct qed_iwarp_ll2_buff *syn; 133456a5849SKalderon, Michal dma_addr_t syn_phy_addr; 134456a5849SKalderon, Michal 135456a5849SKalderon, Michal /* The event_cb function is called for asynchrounous events associated 136456a5849SKalderon, Michal * with the ep. It is initialized at different entry points depending 137456a5849SKalderon, Michal * on whether the ep is the tcp connection active side or passive side 138456a5849SKalderon, Michal * The cb_context is passed to the event_cb function. 139456a5849SKalderon, Michal */ 140456a5849SKalderon, Michal iwarp_event_handler event_cb; 141456a5849SKalderon, Michal void *cb_context; 142456a5849SKalderon, Michal }; 143456a5849SKalderon, Michal 14465a91a6cSKalderon, Michal struct qed_iwarp_listener { 14565a91a6cSKalderon, Michal struct list_head list_entry; 14665a91a6cSKalderon, Michal 14765a91a6cSKalderon, Michal /* The event_cb function is called for connection requests. 14865a91a6cSKalderon, Michal * The cb_context is passed to the event_cb function. 14965a91a6cSKalderon, Michal */ 15065a91a6cSKalderon, Michal iwarp_event_handler event_cb; 15165a91a6cSKalderon, Michal void *cb_context; 15265a91a6cSKalderon, Michal u32 max_backlog; 15365a91a6cSKalderon, Michal u32 ip_addr[4]; 15465a91a6cSKalderon, Michal u16 port; 15565a91a6cSKalderon, Michal u16 vlan; 15665a91a6cSKalderon, Michal u8 ip_version; 15765a91a6cSKalderon, Michal }; 15865a91a6cSKalderon, Michal 15967b40dccSKalderon, Michal int qed_iwarp_alloc(struct qed_hwfn *p_hwfn); 16067b40dccSKalderon, Michal 16179284adeSMichal Kalderon int qed_iwarp_setup(struct qed_hwfn *p_hwfn, 16267b40dccSKalderon, Michal struct qed_rdma_start_in_params *params); 16367b40dccSKalderon, Michal 164d1abfd0bSMichal Kalderon void qed_iwarp_init_fw_ramrod(struct qed_hwfn *p_hwfn, 165da090917STomer Tayar struct iwarp_init_func_ramrod_data *p_ramrod); 166d1abfd0bSMichal Kalderon 16779284adeSMichal Kalderon int qed_iwarp_stop(struct qed_hwfn *p_hwfn); 16867b40dccSKalderon, Michal 16967b40dccSKalderon, Michal void qed_iwarp_resc_free(struct qed_hwfn *p_hwfn); 17067b40dccSKalderon, Michal 17167b40dccSKalderon, Michal void qed_iwarp_init_devinfo(struct qed_hwfn *p_hwfn); 17267b40dccSKalderon, Michal 17367b40dccSKalderon, Michal void qed_iwarp_init_hw(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt); 17467b40dccSKalderon, Michal 17567b40dccSKalderon, Michal int qed_iwarp_create_qp(struct qed_hwfn *p_hwfn, 17667b40dccSKalderon, Michal struct qed_rdma_qp *qp, 17767b40dccSKalderon, Michal struct qed_rdma_create_qp_out_params *out_params); 17867b40dccSKalderon, Michal 17967b40dccSKalderon, Michal int qed_iwarp_modify_qp(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp, 18067b40dccSKalderon, Michal enum qed_iwarp_qp_state new_state, bool internal); 18167b40dccSKalderon, Michal 18267b40dccSKalderon, Michal int qed_iwarp_destroy_qp(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp); 18367b40dccSKalderon, Michal 18467b40dccSKalderon, Michal int qed_iwarp_fw_destroy(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp); 18567b40dccSKalderon, Michal 18667b40dccSKalderon, Michal void qed_iwarp_query_qp(struct qed_rdma_qp *qp, 18767b40dccSKalderon, Michal struct qed_rdma_query_qp_out_params *out_params); 18867b40dccSKalderon, Michal 18965a91a6cSKalderon, Michal int 1904b0fdd7cSKalderon, Michal qed_iwarp_connect(void *rdma_cxt, 1914b0fdd7cSKalderon, Michal struct qed_iwarp_connect_in *iparams, 1924b0fdd7cSKalderon, Michal struct qed_iwarp_connect_out *oparams); 1934b0fdd7cSKalderon, Michal 1944b0fdd7cSKalderon, Michal int 19565a91a6cSKalderon, Michal qed_iwarp_create_listen(void *rdma_cxt, 19665a91a6cSKalderon, Michal struct qed_iwarp_listen_in *iparams, 19765a91a6cSKalderon, Michal struct qed_iwarp_listen_out *oparams); 19865a91a6cSKalderon, Michal 199456a5849SKalderon, Michal int qed_iwarp_accept(void *rdma_cxt, struct qed_iwarp_accept_in *iparams); 200456a5849SKalderon, Michal 201456a5849SKalderon, Michal int qed_iwarp_reject(void *rdma_cxt, struct qed_iwarp_reject_in *iparams); 20265a91a6cSKalderon, Michal int qed_iwarp_destroy_listen(void *rdma_cxt, void *handle); 20365a91a6cSKalderon, Michal 2044b0fdd7cSKalderon, Michal int qed_iwarp_send_rtr(void *rdma_cxt, struct qed_iwarp_send_rtr_in *iparams); 2054b0fdd7cSKalderon, Michal 20667b40dccSKalderon, Michal #endif 207