13287e96aSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 2be086e7cSMintz, Yuval /* QLogic FCoE Offload Driver 35d1c8b5bSChad Dupuis * Copyright (c) 2016-2018 Cavium Inc. 4be086e7cSMintz, Yuval */ 5be086e7cSMintz, Yuval #include "drv_fcoe_fw_funcs.h" 6be086e7cSMintz, Yuval #include "drv_scsi_fw_funcs.h" 7be086e7cSMintz, Yuval 86f359f99SArnd Bergmann #define FCOE_RX_ID (0xFFFFu) 9be086e7cSMintz, Yuval 10be086e7cSMintz, Yuval static inline void init_common_sqe(struct fcoe_task_params *task_params, 11be086e7cSMintz, Yuval enum fcoe_sqe_request_type request_type) 12be086e7cSMintz, Yuval { 13be086e7cSMintz, Yuval memset(task_params->sqe, 0, sizeof(*(task_params->sqe))); 14be086e7cSMintz, Yuval SET_FIELD(task_params->sqe->flags, FCOE_WQE_REQ_TYPE, 15be086e7cSMintz, Yuval request_type); 16be086e7cSMintz, Yuval task_params->sqe->task_id = task_params->itid; 17be086e7cSMintz, Yuval } 18be086e7cSMintz, Yuval 19be086e7cSMintz, Yuval int init_initiator_rw_fcoe_task(struct fcoe_task_params *task_params, 20be086e7cSMintz, Yuval struct scsi_sgl_task_params *sgl_task_params, 21be086e7cSMintz, Yuval struct regpair sense_data_buffer_phys_addr, 22be086e7cSMintz, Yuval u32 task_retry_id, 23be086e7cSMintz, Yuval u8 fcp_cmd_payload[32]) 24be086e7cSMintz, Yuval { 2521dd79e8STomer Tayar struct e4_fcoe_task_context *ctx = task_params->context; 26da090917STomer Tayar const u8 val_byte = ctx->ystorm_ag_context.byte0; 2721dd79e8STomer Tayar struct e4_ustorm_fcoe_task_ag_ctx *u_ag_ctx; 28be086e7cSMintz, Yuval struct ystorm_fcoe_task_st_ctx *y_st_ctx; 29be086e7cSMintz, Yuval struct tstorm_fcoe_task_st_ctx *t_st_ctx; 30be086e7cSMintz, Yuval struct mstorm_fcoe_task_st_ctx *m_st_ctx; 31be086e7cSMintz, Yuval u32 io_size, val; 32be086e7cSMintz, Yuval bool slow_sgl; 33be086e7cSMintz, Yuval 34be086e7cSMintz, Yuval memset(ctx, 0, sizeof(*(ctx))); 35da090917STomer Tayar ctx->ystorm_ag_context.byte0 = val_byte; 36be086e7cSMintz, Yuval slow_sgl = scsi_is_slow_sgl(sgl_task_params->num_sges, 37be086e7cSMintz, Yuval sgl_task_params->small_mid_sge); 38be086e7cSMintz, Yuval io_size = (task_params->task_type == FCOE_TASK_TYPE_WRITE_INITIATOR ? 39be086e7cSMintz, Yuval task_params->tx_io_size : task_params->rx_io_size); 40be086e7cSMintz, Yuval 41be086e7cSMintz, Yuval /* Ystorm ctx */ 42be086e7cSMintz, Yuval y_st_ctx = &ctx->ystorm_st_context; 43be086e7cSMintz, Yuval y_st_ctx->data_2_trns_rem = cpu_to_le32(io_size); 44be086e7cSMintz, Yuval y_st_ctx->task_rety_identifier = cpu_to_le32(task_retry_id); 45da090917STomer Tayar y_st_ctx->task_type = (u8)task_params->task_type; 46be086e7cSMintz, Yuval memcpy(&y_st_ctx->tx_info_union.fcp_cmd_payload, 47be086e7cSMintz, Yuval fcp_cmd_payload, sizeof(struct fcoe_fcp_cmd_payload)); 48be086e7cSMintz, Yuval 49be086e7cSMintz, Yuval /* Tstorm ctx */ 50be086e7cSMintz, Yuval t_st_ctx = &ctx->tstorm_st_context; 51da090917STomer Tayar t_st_ctx->read_only.dev_type = (u8)(task_params->is_tape_device == 1 ? 52be086e7cSMintz, Yuval FCOE_TASK_DEV_TYPE_TAPE : 53be086e7cSMintz, Yuval FCOE_TASK_DEV_TYPE_DISK); 54be086e7cSMintz, Yuval t_st_ctx->read_only.cid = cpu_to_le32(task_params->conn_cid); 55be086e7cSMintz, Yuval val = cpu_to_le32(task_params->cq_rss_number); 56be086e7cSMintz, Yuval t_st_ctx->read_only.glbl_q_num = val; 57be086e7cSMintz, Yuval t_st_ctx->read_only.fcp_cmd_trns_size = cpu_to_le32(io_size); 58da090917STomer Tayar t_st_ctx->read_only.task_type = (u8)task_params->task_type; 59be086e7cSMintz, Yuval SET_FIELD(t_st_ctx->read_write.flags, 60be086e7cSMintz, Yuval FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_EXP_FIRST_FRAME, 1); 616f359f99SArnd Bergmann t_st_ctx->read_write.rx_id = cpu_to_le16(FCOE_RX_ID); 62be086e7cSMintz, Yuval 63be086e7cSMintz, Yuval /* Ustorm ctx */ 64be086e7cSMintz, Yuval u_ag_ctx = &ctx->ustorm_ag_context; 65be086e7cSMintz, Yuval u_ag_ctx->global_cq_num = cpu_to_le32(task_params->cq_rss_number); 66be086e7cSMintz, Yuval 67be086e7cSMintz, Yuval /* Mstorm buffer for sense/rsp data placement */ 68be086e7cSMintz, Yuval m_st_ctx = &ctx->mstorm_st_context; 69be086e7cSMintz, Yuval val = cpu_to_le32(sense_data_buffer_phys_addr.hi); 70be086e7cSMintz, Yuval m_st_ctx->rsp_buf_addr.hi = val; 71be086e7cSMintz, Yuval val = cpu_to_le32(sense_data_buffer_phys_addr.lo); 72be086e7cSMintz, Yuval m_st_ctx->rsp_buf_addr.lo = val; 73be086e7cSMintz, Yuval 74be086e7cSMintz, Yuval if (task_params->task_type == FCOE_TASK_TYPE_WRITE_INITIATOR) { 75be086e7cSMintz, Yuval /* Ystorm ctx */ 76be086e7cSMintz, Yuval y_st_ctx->expect_first_xfer = 1; 77be086e7cSMintz, Yuval 78be086e7cSMintz, Yuval /* Set the amount of super SGEs. Can be up to 4. */ 79be086e7cSMintz, Yuval SET_FIELD(y_st_ctx->sgl_mode, 80be086e7cSMintz, Yuval YSTORM_FCOE_TASK_ST_CTX_TX_SGL_MODE, 81be086e7cSMintz, Yuval (slow_sgl ? SCSI_TX_SLOW_SGL : SCSI_FAST_SGL)); 82be086e7cSMintz, Yuval init_scsi_sgl_context(&y_st_ctx->sgl_params, 83be086e7cSMintz, Yuval &y_st_ctx->data_desc, 84be086e7cSMintz, Yuval sgl_task_params); 85be086e7cSMintz, Yuval 86be086e7cSMintz, Yuval /* Mstorm ctx */ 87be086e7cSMintz, Yuval SET_FIELD(m_st_ctx->flags, 88be086e7cSMintz, Yuval MSTORM_FCOE_TASK_ST_CTX_TX_SGL_MODE, 89be086e7cSMintz, Yuval (slow_sgl ? SCSI_TX_SLOW_SGL : SCSI_FAST_SGL)); 90da090917STomer Tayar m_st_ctx->sgl_params.sgl_num_sges = 91da090917STomer Tayar cpu_to_le16(sgl_task_params->num_sges); 92be086e7cSMintz, Yuval } else { 93be086e7cSMintz, Yuval /* Tstorm ctx */ 94be086e7cSMintz, Yuval SET_FIELD(t_st_ctx->read_write.flags, 95be086e7cSMintz, Yuval FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_RX_SGL_MODE, 96be086e7cSMintz, Yuval (slow_sgl ? SCSI_TX_SLOW_SGL : SCSI_FAST_SGL)); 97be086e7cSMintz, Yuval 98be086e7cSMintz, Yuval /* Mstorm ctx */ 99be086e7cSMintz, Yuval m_st_ctx->data_2_trns_rem = cpu_to_le32(io_size); 100be086e7cSMintz, Yuval init_scsi_sgl_context(&m_st_ctx->sgl_params, 101be086e7cSMintz, Yuval &m_st_ctx->data_desc, 102be086e7cSMintz, Yuval sgl_task_params); 103be086e7cSMintz, Yuval } 104be086e7cSMintz, Yuval 105da090917STomer Tayar /* Init Sqe */ 106be086e7cSMintz, Yuval init_common_sqe(task_params, SEND_FCOE_CMD); 107da090917STomer Tayar 108be086e7cSMintz, Yuval return 0; 109be086e7cSMintz, Yuval } 110be086e7cSMintz, Yuval 111be086e7cSMintz, Yuval int init_initiator_midpath_unsolicited_fcoe_task( 112be086e7cSMintz, Yuval struct fcoe_task_params *task_params, 113be086e7cSMintz, Yuval struct fcoe_tx_mid_path_params *mid_path_fc_header, 114be086e7cSMintz, Yuval struct scsi_sgl_task_params *tx_sgl_task_params, 115be086e7cSMintz, Yuval struct scsi_sgl_task_params *rx_sgl_task_params, 116be086e7cSMintz, Yuval u8 fw_to_place_fc_header) 117be086e7cSMintz, Yuval { 11821dd79e8STomer Tayar struct e4_fcoe_task_context *ctx = task_params->context; 119da090917STomer Tayar const u8 val_byte = ctx->ystorm_ag_context.byte0; 12021dd79e8STomer Tayar struct e4_ustorm_fcoe_task_ag_ctx *u_ag_ctx; 121be086e7cSMintz, Yuval struct ystorm_fcoe_task_st_ctx *y_st_ctx; 122be086e7cSMintz, Yuval struct tstorm_fcoe_task_st_ctx *t_st_ctx; 123be086e7cSMintz, Yuval struct mstorm_fcoe_task_st_ctx *m_st_ctx; 124be086e7cSMintz, Yuval u32 val; 125be086e7cSMintz, Yuval 126be086e7cSMintz, Yuval memset(ctx, 0, sizeof(*(ctx))); 127da090917STomer Tayar ctx->ystorm_ag_context.byte0 = val_byte; 128be086e7cSMintz, Yuval 129be086e7cSMintz, Yuval /* Init Ystorm */ 130be086e7cSMintz, Yuval y_st_ctx = &ctx->ystorm_st_context; 131be086e7cSMintz, Yuval init_scsi_sgl_context(&y_st_ctx->sgl_params, 132be086e7cSMintz, Yuval &y_st_ctx->data_desc, 133be086e7cSMintz, Yuval tx_sgl_task_params); 134be086e7cSMintz, Yuval SET_FIELD(y_st_ctx->sgl_mode, 135be086e7cSMintz, Yuval YSTORM_FCOE_TASK_ST_CTX_TX_SGL_MODE, SCSI_FAST_SGL); 136be086e7cSMintz, Yuval y_st_ctx->data_2_trns_rem = cpu_to_le32(task_params->tx_io_size); 137da090917STomer Tayar y_st_ctx->task_type = (u8)task_params->task_type; 138be086e7cSMintz, Yuval memcpy(&y_st_ctx->tx_info_union.tx_params.mid_path, 139be086e7cSMintz, Yuval mid_path_fc_header, sizeof(struct fcoe_tx_mid_path_params)); 140be086e7cSMintz, Yuval 141be086e7cSMintz, Yuval /* Init Mstorm */ 142be086e7cSMintz, Yuval m_st_ctx = &ctx->mstorm_st_context; 143be086e7cSMintz, Yuval init_scsi_sgl_context(&m_st_ctx->sgl_params, 144be086e7cSMintz, Yuval &m_st_ctx->data_desc, 145be086e7cSMintz, Yuval rx_sgl_task_params); 146be086e7cSMintz, Yuval SET_FIELD(m_st_ctx->flags, 147be086e7cSMintz, Yuval MSTORM_FCOE_TASK_ST_CTX_MP_INCLUDE_FC_HEADER, 148be086e7cSMintz, Yuval fw_to_place_fc_header); 149be086e7cSMintz, Yuval m_st_ctx->data_2_trns_rem = cpu_to_le32(task_params->rx_io_size); 150be086e7cSMintz, Yuval 151be086e7cSMintz, Yuval /* Init Tstorm */ 152be086e7cSMintz, Yuval t_st_ctx = &ctx->tstorm_st_context; 153be086e7cSMintz, Yuval t_st_ctx->read_only.cid = cpu_to_le32(task_params->conn_cid); 154be086e7cSMintz, Yuval val = cpu_to_le32(task_params->cq_rss_number); 155be086e7cSMintz, Yuval t_st_ctx->read_only.glbl_q_num = val; 156da090917STomer Tayar t_st_ctx->read_only.task_type = (u8)task_params->task_type; 157be086e7cSMintz, Yuval SET_FIELD(t_st_ctx->read_write.flags, 158be086e7cSMintz, Yuval FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_EXP_FIRST_FRAME, 1); 1596f359f99SArnd Bergmann t_st_ctx->read_write.rx_id = cpu_to_le16(FCOE_RX_ID); 160be086e7cSMintz, Yuval 161be086e7cSMintz, Yuval /* Init Ustorm */ 162be086e7cSMintz, Yuval u_ag_ctx = &ctx->ustorm_ag_context; 163be086e7cSMintz, Yuval u_ag_ctx->global_cq_num = cpu_to_le32(task_params->cq_rss_number); 164be086e7cSMintz, Yuval 165be086e7cSMintz, Yuval /* Init SQE */ 166be086e7cSMintz, Yuval init_common_sqe(task_params, SEND_FCOE_MIDPATH); 167be086e7cSMintz, Yuval task_params->sqe->additional_info_union.burst_length = 168be086e7cSMintz, Yuval tx_sgl_task_params->total_buffer_size; 169be086e7cSMintz, Yuval SET_FIELD(task_params->sqe->flags, 170be086e7cSMintz, Yuval FCOE_WQE_NUM_SGES, tx_sgl_task_params->num_sges); 171be086e7cSMintz, Yuval SET_FIELD(task_params->sqe->flags, FCOE_WQE_SGL_MODE, 172be086e7cSMintz, Yuval SCSI_FAST_SGL); 173be086e7cSMintz, Yuval 174be086e7cSMintz, Yuval return 0; 175be086e7cSMintz, Yuval } 176be086e7cSMintz, Yuval 177be086e7cSMintz, Yuval int init_initiator_abort_fcoe_task(struct fcoe_task_params *task_params) 178be086e7cSMintz, Yuval { 179be086e7cSMintz, Yuval init_common_sqe(task_params, SEND_FCOE_ABTS_REQUEST); 180be086e7cSMintz, Yuval return 0; 181be086e7cSMintz, Yuval } 182be086e7cSMintz, Yuval 183be086e7cSMintz, Yuval int init_initiator_cleanup_fcoe_task(struct fcoe_task_params *task_params) 184be086e7cSMintz, Yuval { 185be086e7cSMintz, Yuval init_common_sqe(task_params, FCOE_EXCHANGE_CLEANUP); 186be086e7cSMintz, Yuval return 0; 187be086e7cSMintz, Yuval } 188be086e7cSMintz, Yuval 189be086e7cSMintz, Yuval int init_initiator_sequence_recovery_fcoe_task( 190da090917STomer Tayar struct fcoe_task_params *task_params, u32 desired_offset) 191be086e7cSMintz, Yuval { 192be086e7cSMintz, Yuval init_common_sqe(task_params, FCOE_SEQUENCE_RECOVERY); 193da090917STomer Tayar task_params->sqe->additional_info_union.seq_rec_updated_offset = 194da090917STomer Tayar desired_offset; 195be086e7cSMintz, Yuval return 0; 196be086e7cSMintz, Yuval } 197