167b40dccSKalderon, Michal /* QLogic qed NIC Driver 267b40dccSKalderon, Michal * Copyright (c) 2015-2017 QLogic Corporation 367b40dccSKalderon, Michal * 467b40dccSKalderon, Michal * This software is available to you under a choice of one of two 567b40dccSKalderon, Michal * licenses. You may choose to be licensed under the terms of the GNU 667b40dccSKalderon, Michal * General Public License (GPL) Version 2, available from the file 767b40dccSKalderon, Michal * COPYING in the main directory of this source tree, or the 867b40dccSKalderon, Michal * OpenIB.org BSD license below: 967b40dccSKalderon, Michal * 1067b40dccSKalderon, Michal * Redistribution and use in source and binary forms, with or 1167b40dccSKalderon, Michal * without modification, are permitted provided that the following 1267b40dccSKalderon, Michal * conditions are met: 1367b40dccSKalderon, Michal * 1467b40dccSKalderon, Michal * - Redistributions of source code must retain the above 1567b40dccSKalderon, Michal * copyright notice, this list of conditions and the following 1667b40dccSKalderon, Michal * disclaimer. 1767b40dccSKalderon, Michal * 1867b40dccSKalderon, Michal * - Redistributions in binary form must reproduce the above 1967b40dccSKalderon, Michal * copyright notice, this list of conditions and the following 2067b40dccSKalderon, Michal * disclaimer in the documentation and /or other materials 2167b40dccSKalderon, Michal * provided with the distribution. 2267b40dccSKalderon, Michal * 2367b40dccSKalderon, Michal * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 2467b40dccSKalderon, Michal * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 2567b40dccSKalderon, Michal * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 2667b40dccSKalderon, Michal * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 2767b40dccSKalderon, Michal * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 2867b40dccSKalderon, Michal * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 2967b40dccSKalderon, Michal * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 3067b40dccSKalderon, Michal * SOFTWARE. 3167b40dccSKalderon, Michal */ 3267b40dccSKalderon, Michal #ifndef _QED_IWARP_H 3367b40dccSKalderon, Michal #define _QED_IWARP_H 3467b40dccSKalderon, Michal 3567b40dccSKalderon, Michal enum qed_iwarp_qp_state { 3667b40dccSKalderon, Michal QED_IWARP_QP_STATE_IDLE, 3767b40dccSKalderon, Michal QED_IWARP_QP_STATE_RTS, 3867b40dccSKalderon, Michal QED_IWARP_QP_STATE_TERMINATE, 3967b40dccSKalderon, Michal QED_IWARP_QP_STATE_CLOSING, 4067b40dccSKalderon, Michal QED_IWARP_QP_STATE_ERROR, 4167b40dccSKalderon, Michal }; 4267b40dccSKalderon, Michal 4367b40dccSKalderon, Michal enum qed_iwarp_qp_state qed_roce2iwarp_state(enum qed_roce_qp_state state); 4467b40dccSKalderon, Michal 45456a5849SKalderon, Michal #define QED_IWARP_PREALLOC_CNT (256) 46456a5849SKalderon, Michal 47b5c29ca7SKalderon, Michal #define QED_IWARP_LL2_SYN_TX_SIZE (128) 48b5c29ca7SKalderon, Michal #define QED_IWARP_LL2_SYN_RX_SIZE (256) 49b5c29ca7SKalderon, Michal #define QED_IWARP_MAX_SYN_PKT_SIZE (128) 50d1abfd0bSMichal Kalderon 51d1abfd0bSMichal Kalderon #define QED_IWARP_LL2_OOO_DEF_TX_SIZE (256) 52d1abfd0bSMichal Kalderon #define QED_IWARP_MAX_OOO (16) 53d1abfd0bSMichal Kalderon #define QED_IWARP_LL2_OOO_MAX_RX_SIZE (16384) 54d1abfd0bSMichal Kalderon 55b5c29ca7SKalderon, Michal #define QED_IWARP_HANDLE_INVAL (0xff) 56b5c29ca7SKalderon, Michal 57b5c29ca7SKalderon, Michal struct qed_iwarp_ll2_buff { 58d531038eSMichal Kalderon struct qed_iwarp_ll2_buff *piggy_buf; 59b5c29ca7SKalderon, Michal void *data; 60b5c29ca7SKalderon, Michal dma_addr_t data_phys_addr; 61b5c29ca7SKalderon, Michal u32 buff_size; 62b5c29ca7SKalderon, Michal }; 63b5c29ca7SKalderon, Michal 64fcb39f6cSMichal Kalderon struct qed_iwarp_ll2_mpa_buf { 65fcb39f6cSMichal Kalderon struct list_head list_entry; 66fcb39f6cSMichal Kalderon struct qed_iwarp_ll2_buff *ll2_buf; 67fcb39f6cSMichal Kalderon struct unaligned_opaque_data data; 68fcb39f6cSMichal Kalderon u16 tcp_payload_len; 69fcb39f6cSMichal Kalderon u8 placement_offset; 70fcb39f6cSMichal Kalderon }; 71fcb39f6cSMichal Kalderon 72c7d1d839SMichal Kalderon /* In some cases a fpdu will arrive with only one byte of the header, in this 73c7d1d839SMichal Kalderon * case the fpdu_length will be partial (contain only higher byte and 74c7d1d839SMichal Kalderon * incomplete bytes will contain the invalid value 75c7d1d839SMichal Kalderon */ 76c7d1d839SMichal Kalderon #define QED_IWARP_INVALID_INCOMPLETE_BYTES 0xffff 77c7d1d839SMichal Kalderon 78469981b1SMichal Kalderon struct qed_iwarp_fpdu { 79469981b1SMichal Kalderon struct qed_iwarp_ll2_buff *mpa_buf; 80469981b1SMichal Kalderon void *mpa_frag_virt; 81469981b1SMichal Kalderon dma_addr_t mpa_frag; 82469981b1SMichal Kalderon dma_addr_t pkt_hdr; 83469981b1SMichal Kalderon u16 mpa_frag_len; 84469981b1SMichal Kalderon u16 fpdu_length; 85469981b1SMichal Kalderon u16 incomplete_bytes; 86469981b1SMichal Kalderon u8 pkt_hdr_size; 87469981b1SMichal Kalderon }; 88469981b1SMichal Kalderon 8967b40dccSKalderon, Michal struct qed_iwarp_info { 9065a91a6cSKalderon, Michal struct list_head listen_list; /* qed_iwarp_listener */ 91456a5849SKalderon, Michal struct list_head ep_list; /* qed_iwarp_ep */ 92456a5849SKalderon, Michal struct list_head ep_free_list; /* pre-allocated ep's */ 93fcb39f6cSMichal Kalderon struct list_head mpa_buf_list; /* list of mpa_bufs */ 94fcb39f6cSMichal Kalderon struct list_head mpa_buf_pending_list; 9567b40dccSKalderon, Michal spinlock_t iw_lock; /* for iwarp resources */ 9667b40dccSKalderon, Michal spinlock_t qp_lock; /* for teardown races */ 9767b40dccSKalderon, Michal u32 rcv_wnd_scale; 9867b40dccSKalderon, Michal u16 max_mtu; 9967b40dccSKalderon, Michal u8 mac_addr[ETH_ALEN]; 10067b40dccSKalderon, Michal u8 crc_needed; 10167b40dccSKalderon, Michal u8 tcp_flags; 102b5c29ca7SKalderon, Michal u8 ll2_syn_handle; 103d1abfd0bSMichal Kalderon u8 ll2_ooo_handle; 104ae3488ffSMichal Kalderon u8 ll2_mpa_handle; 10567b40dccSKalderon, Michal u8 peer2peer; 10667b40dccSKalderon, Michal enum mpa_negotiation_mode mpa_rev; 10767b40dccSKalderon, Michal enum mpa_rtr_type rtr_type; 108469981b1SMichal Kalderon struct qed_iwarp_fpdu *partial_fpdus; 109fcb39f6cSMichal Kalderon struct qed_iwarp_ll2_mpa_buf *mpa_bufs; 1101e28eaadSMichal Kalderon u8 *mpa_intermediate_buf; 111469981b1SMichal Kalderon u16 max_num_partial_fpdus; 11267b40dccSKalderon, Michal }; 11367b40dccSKalderon, Michal 114456a5849SKalderon, Michal enum qed_iwarp_ep_state { 115456a5849SKalderon, Michal QED_IWARP_EP_INIT, 116456a5849SKalderon, Michal QED_IWARP_EP_MPA_REQ_RCVD, 117456a5849SKalderon, Michal QED_IWARP_EP_MPA_OFFLOADED, 118456a5849SKalderon, Michal QED_IWARP_EP_ESTABLISHED, 119456a5849SKalderon, Michal QED_IWARP_EP_CLOSED 120456a5849SKalderon, Michal }; 121456a5849SKalderon, Michal 122456a5849SKalderon, Michal union async_output { 123456a5849SKalderon, Michal struct iwarp_eqe_data_mpa_async_completion mpa_response; 124456a5849SKalderon, Michal struct iwarp_eqe_data_tcp_async_completion mpa_request; 125456a5849SKalderon, Michal }; 126456a5849SKalderon, Michal 127456a5849SKalderon, Michal #define QED_MAX_PRIV_DATA_LEN (512) 128456a5849SKalderon, Michal struct qed_iwarp_ep_memory { 129456a5849SKalderon, Michal u8 in_pdata[QED_MAX_PRIV_DATA_LEN]; 130456a5849SKalderon, Michal u8 out_pdata[QED_MAX_PRIV_DATA_LEN]; 131456a5849SKalderon, Michal union async_output async_output; 132456a5849SKalderon, Michal }; 133456a5849SKalderon, Michal 134456a5849SKalderon, Michal /* Endpoint structure represents a TCP connection. This connection can be 135456a5849SKalderon, Michal * associated with a QP or not (in which case QP==NULL) 136456a5849SKalderon, Michal */ 137456a5849SKalderon, Michal struct qed_iwarp_ep { 138456a5849SKalderon, Michal struct list_head list_entry; 139456a5849SKalderon, Michal struct qed_rdma_qp *qp; 140456a5849SKalderon, Michal struct qed_iwarp_ep_memory *ep_buffer_virt; 141456a5849SKalderon, Michal dma_addr_t ep_buffer_phys; 142456a5849SKalderon, Michal enum qed_iwarp_ep_state state; 143456a5849SKalderon, Michal int sig; 144456a5849SKalderon, Michal struct qed_iwarp_cm_info cm_info; 145456a5849SKalderon, Michal enum tcp_connect_mode connect_mode; 146456a5849SKalderon, Michal enum mpa_rtr_type rtr_type; 147456a5849SKalderon, Michal enum mpa_negotiation_mode mpa_rev; 148456a5849SKalderon, Michal u32 tcp_cid; 149456a5849SKalderon, Michal u32 cid; 150456a5849SKalderon, Michal u16 mss; 151456a5849SKalderon, Michal u8 remote_mac_addr[6]; 152456a5849SKalderon, Michal u8 local_mac_addr[6]; 153456a5849SKalderon, Michal bool mpa_reply_processed; 154456a5849SKalderon, Michal 155456a5849SKalderon, Michal /* For Passive side - syn packet related data */ 156456a5849SKalderon, Michal u16 syn_ip_payload_length; 157456a5849SKalderon, Michal struct qed_iwarp_ll2_buff *syn; 158456a5849SKalderon, Michal dma_addr_t syn_phy_addr; 159456a5849SKalderon, Michal 160456a5849SKalderon, Michal /* The event_cb function is called for asynchrounous events associated 161456a5849SKalderon, Michal * with the ep. It is initialized at different entry points depending 162456a5849SKalderon, Michal * on whether the ep is the tcp connection active side or passive side 163456a5849SKalderon, Michal * The cb_context is passed to the event_cb function. 164456a5849SKalderon, Michal */ 165456a5849SKalderon, Michal iwarp_event_handler event_cb; 166456a5849SKalderon, Michal void *cb_context; 167456a5849SKalderon, Michal }; 168456a5849SKalderon, Michal 16965a91a6cSKalderon, Michal struct qed_iwarp_listener { 17065a91a6cSKalderon, Michal struct list_head list_entry; 17165a91a6cSKalderon, Michal 17265a91a6cSKalderon, Michal /* The event_cb function is called for connection requests. 17365a91a6cSKalderon, Michal * The cb_context is passed to the event_cb function. 17465a91a6cSKalderon, Michal */ 17565a91a6cSKalderon, Michal iwarp_event_handler event_cb; 17665a91a6cSKalderon, Michal void *cb_context; 17765a91a6cSKalderon, Michal u32 max_backlog; 17865a91a6cSKalderon, Michal u32 ip_addr[4]; 17965a91a6cSKalderon, Michal u16 port; 18065a91a6cSKalderon, Michal u16 vlan; 18165a91a6cSKalderon, Michal u8 ip_version; 18265a91a6cSKalderon, Michal }; 18365a91a6cSKalderon, Michal 18467b40dccSKalderon, Michal int qed_iwarp_alloc(struct qed_hwfn *p_hwfn); 18567b40dccSKalderon, Michal 18667b40dccSKalderon, Michal int qed_iwarp_setup(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, 18767b40dccSKalderon, Michal struct qed_rdma_start_in_params *params); 18867b40dccSKalderon, Michal 189d1abfd0bSMichal Kalderon void qed_iwarp_init_fw_ramrod(struct qed_hwfn *p_hwfn, 190d1abfd0bSMichal Kalderon struct iwarp_init_func_params *p_ramrod); 191d1abfd0bSMichal Kalderon 19267b40dccSKalderon, Michal int qed_iwarp_stop(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt); 19367b40dccSKalderon, Michal 19467b40dccSKalderon, Michal void qed_iwarp_resc_free(struct qed_hwfn *p_hwfn); 19567b40dccSKalderon, Michal 19667b40dccSKalderon, Michal void qed_iwarp_init_devinfo(struct qed_hwfn *p_hwfn); 19767b40dccSKalderon, Michal 19867b40dccSKalderon, Michal void qed_iwarp_init_hw(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt); 19967b40dccSKalderon, Michal 20067b40dccSKalderon, Michal int qed_iwarp_create_qp(struct qed_hwfn *p_hwfn, 20167b40dccSKalderon, Michal struct qed_rdma_qp *qp, 20267b40dccSKalderon, Michal struct qed_rdma_create_qp_out_params *out_params); 20367b40dccSKalderon, Michal 20467b40dccSKalderon, Michal int qed_iwarp_modify_qp(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp, 20567b40dccSKalderon, Michal enum qed_iwarp_qp_state new_state, bool internal); 20667b40dccSKalderon, Michal 20767b40dccSKalderon, Michal int qed_iwarp_destroy_qp(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp); 20867b40dccSKalderon, Michal 20967b40dccSKalderon, Michal int qed_iwarp_fw_destroy(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp); 21067b40dccSKalderon, Michal 21167b40dccSKalderon, Michal void qed_iwarp_query_qp(struct qed_rdma_qp *qp, 21267b40dccSKalderon, Michal struct qed_rdma_query_qp_out_params *out_params); 21367b40dccSKalderon, Michal 21465a91a6cSKalderon, Michal int 2154b0fdd7cSKalderon, Michal qed_iwarp_connect(void *rdma_cxt, 2164b0fdd7cSKalderon, Michal struct qed_iwarp_connect_in *iparams, 2174b0fdd7cSKalderon, Michal struct qed_iwarp_connect_out *oparams); 2184b0fdd7cSKalderon, Michal 2194b0fdd7cSKalderon, Michal int 22065a91a6cSKalderon, Michal qed_iwarp_create_listen(void *rdma_cxt, 22165a91a6cSKalderon, Michal struct qed_iwarp_listen_in *iparams, 22265a91a6cSKalderon, Michal struct qed_iwarp_listen_out *oparams); 22365a91a6cSKalderon, Michal 224456a5849SKalderon, Michal int qed_iwarp_accept(void *rdma_cxt, struct qed_iwarp_accept_in *iparams); 225456a5849SKalderon, Michal 226456a5849SKalderon, Michal int qed_iwarp_reject(void *rdma_cxt, struct qed_iwarp_reject_in *iparams); 22765a91a6cSKalderon, Michal int qed_iwarp_destroy_listen(void *rdma_cxt, void *handle); 22865a91a6cSKalderon, Michal 2294b0fdd7cSKalderon, Michal int qed_iwarp_send_rtr(void *rdma_cxt, struct qed_iwarp_send_rtr_in *iparams); 2304b0fdd7cSKalderon, Michal 23167b40dccSKalderon, Michal #endif 232