1be086e7cSMintz, Yuval /* QLogic FCoE Offload Driver 25d1c8b5bSChad Dupuis * Copyright (c) 2016-2018 Cavium Inc. 3be086e7cSMintz, Yuval * 4be086e7cSMintz, Yuval * This software is available under the terms of the GNU General Public License 5be086e7cSMintz, Yuval * (GPL) Version 2, available from the file COPYING in the main directory of 6be086e7cSMintz, Yuval * this source tree. 7be086e7cSMintz, Yuval */ 8be086e7cSMintz, Yuval #include "drv_fcoe_fw_funcs.h" 9be086e7cSMintz, Yuval #include "drv_scsi_fw_funcs.h" 10be086e7cSMintz, Yuval 116f359f99SArnd Bergmann #define FCOE_RX_ID (0xFFFFu) 12be086e7cSMintz, Yuval 13be086e7cSMintz, Yuval static inline void init_common_sqe(struct fcoe_task_params *task_params, 14be086e7cSMintz, Yuval enum fcoe_sqe_request_type request_type) 15be086e7cSMintz, Yuval { 16be086e7cSMintz, Yuval memset(task_params->sqe, 0, sizeof(*(task_params->sqe))); 17be086e7cSMintz, Yuval SET_FIELD(task_params->sqe->flags, FCOE_WQE_REQ_TYPE, 18be086e7cSMintz, Yuval request_type); 19be086e7cSMintz, Yuval task_params->sqe->task_id = task_params->itid; 20be086e7cSMintz, Yuval } 21be086e7cSMintz, Yuval 22be086e7cSMintz, Yuval int init_initiator_rw_fcoe_task(struct fcoe_task_params *task_params, 23be086e7cSMintz, Yuval struct scsi_sgl_task_params *sgl_task_params, 24be086e7cSMintz, Yuval struct regpair sense_data_buffer_phys_addr, 25be086e7cSMintz, Yuval u32 task_retry_id, 26be086e7cSMintz, Yuval u8 fcp_cmd_payload[32]) 27be086e7cSMintz, Yuval { 2821dd79e8STomer Tayar struct e4_fcoe_task_context *ctx = task_params->context; 29da090917STomer Tayar const u8 val_byte = ctx->ystorm_ag_context.byte0; 3021dd79e8STomer Tayar struct e4_ustorm_fcoe_task_ag_ctx *u_ag_ctx; 31be086e7cSMintz, Yuval struct ystorm_fcoe_task_st_ctx *y_st_ctx; 32be086e7cSMintz, Yuval struct tstorm_fcoe_task_st_ctx *t_st_ctx; 33be086e7cSMintz, Yuval struct mstorm_fcoe_task_st_ctx *m_st_ctx; 34be086e7cSMintz, Yuval u32 io_size, val; 35be086e7cSMintz, Yuval bool slow_sgl; 36be086e7cSMintz, Yuval 37be086e7cSMintz, Yuval memset(ctx, 0, sizeof(*(ctx))); 38da090917STomer Tayar ctx->ystorm_ag_context.byte0 = val_byte; 39be086e7cSMintz, Yuval slow_sgl = scsi_is_slow_sgl(sgl_task_params->num_sges, 40be086e7cSMintz, Yuval sgl_task_params->small_mid_sge); 41be086e7cSMintz, Yuval io_size = (task_params->task_type == FCOE_TASK_TYPE_WRITE_INITIATOR ? 42be086e7cSMintz, Yuval task_params->tx_io_size : task_params->rx_io_size); 43be086e7cSMintz, Yuval 44be086e7cSMintz, Yuval /* Ystorm ctx */ 45be086e7cSMintz, Yuval y_st_ctx = &ctx->ystorm_st_context; 46be086e7cSMintz, Yuval y_st_ctx->data_2_trns_rem = cpu_to_le32(io_size); 47be086e7cSMintz, Yuval y_st_ctx->task_rety_identifier = cpu_to_le32(task_retry_id); 48da090917STomer Tayar y_st_ctx->task_type = (u8)task_params->task_type; 49be086e7cSMintz, Yuval memcpy(&y_st_ctx->tx_info_union.fcp_cmd_payload, 50be086e7cSMintz, Yuval fcp_cmd_payload, sizeof(struct fcoe_fcp_cmd_payload)); 51be086e7cSMintz, Yuval 52be086e7cSMintz, Yuval /* Tstorm ctx */ 53be086e7cSMintz, Yuval t_st_ctx = &ctx->tstorm_st_context; 54da090917STomer Tayar t_st_ctx->read_only.dev_type = (u8)(task_params->is_tape_device == 1 ? 55be086e7cSMintz, Yuval FCOE_TASK_DEV_TYPE_TAPE : 56be086e7cSMintz, Yuval FCOE_TASK_DEV_TYPE_DISK); 57be086e7cSMintz, Yuval t_st_ctx->read_only.cid = cpu_to_le32(task_params->conn_cid); 58be086e7cSMintz, Yuval val = cpu_to_le32(task_params->cq_rss_number); 59be086e7cSMintz, Yuval t_st_ctx->read_only.glbl_q_num = val; 60be086e7cSMintz, Yuval t_st_ctx->read_only.fcp_cmd_trns_size = cpu_to_le32(io_size); 61da090917STomer Tayar t_st_ctx->read_only.task_type = (u8)task_params->task_type; 62be086e7cSMintz, Yuval SET_FIELD(t_st_ctx->read_write.flags, 63be086e7cSMintz, Yuval FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_EXP_FIRST_FRAME, 1); 646f359f99SArnd Bergmann t_st_ctx->read_write.rx_id = cpu_to_le16(FCOE_RX_ID); 65be086e7cSMintz, Yuval 66be086e7cSMintz, Yuval /* Ustorm ctx */ 67be086e7cSMintz, Yuval u_ag_ctx = &ctx->ustorm_ag_context; 68be086e7cSMintz, Yuval u_ag_ctx->global_cq_num = cpu_to_le32(task_params->cq_rss_number); 69be086e7cSMintz, Yuval 70be086e7cSMintz, Yuval /* Mstorm buffer for sense/rsp data placement */ 71be086e7cSMintz, Yuval m_st_ctx = &ctx->mstorm_st_context; 72be086e7cSMintz, Yuval val = cpu_to_le32(sense_data_buffer_phys_addr.hi); 73be086e7cSMintz, Yuval m_st_ctx->rsp_buf_addr.hi = val; 74be086e7cSMintz, Yuval val = cpu_to_le32(sense_data_buffer_phys_addr.lo); 75be086e7cSMintz, Yuval m_st_ctx->rsp_buf_addr.lo = val; 76be086e7cSMintz, Yuval 77be086e7cSMintz, Yuval if (task_params->task_type == FCOE_TASK_TYPE_WRITE_INITIATOR) { 78be086e7cSMintz, Yuval /* Ystorm ctx */ 79be086e7cSMintz, Yuval y_st_ctx->expect_first_xfer = 1; 80be086e7cSMintz, Yuval 81be086e7cSMintz, Yuval /* Set the amount of super SGEs. Can be up to 4. */ 82be086e7cSMintz, Yuval SET_FIELD(y_st_ctx->sgl_mode, 83be086e7cSMintz, Yuval YSTORM_FCOE_TASK_ST_CTX_TX_SGL_MODE, 84be086e7cSMintz, Yuval (slow_sgl ? SCSI_TX_SLOW_SGL : SCSI_FAST_SGL)); 85be086e7cSMintz, Yuval init_scsi_sgl_context(&y_st_ctx->sgl_params, 86be086e7cSMintz, Yuval &y_st_ctx->data_desc, 87be086e7cSMintz, Yuval sgl_task_params); 88be086e7cSMintz, Yuval 89be086e7cSMintz, Yuval /* Mstorm ctx */ 90be086e7cSMintz, Yuval SET_FIELD(m_st_ctx->flags, 91be086e7cSMintz, Yuval MSTORM_FCOE_TASK_ST_CTX_TX_SGL_MODE, 92be086e7cSMintz, Yuval (slow_sgl ? SCSI_TX_SLOW_SGL : SCSI_FAST_SGL)); 93da090917STomer Tayar m_st_ctx->sgl_params.sgl_num_sges = 94da090917STomer Tayar cpu_to_le16(sgl_task_params->num_sges); 95be086e7cSMintz, Yuval } else { 96be086e7cSMintz, Yuval /* Tstorm ctx */ 97be086e7cSMintz, Yuval SET_FIELD(t_st_ctx->read_write.flags, 98be086e7cSMintz, Yuval FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_RX_SGL_MODE, 99be086e7cSMintz, Yuval (slow_sgl ? SCSI_TX_SLOW_SGL : SCSI_FAST_SGL)); 100be086e7cSMintz, Yuval 101be086e7cSMintz, Yuval /* Mstorm ctx */ 102be086e7cSMintz, Yuval m_st_ctx->data_2_trns_rem = cpu_to_le32(io_size); 103be086e7cSMintz, Yuval init_scsi_sgl_context(&m_st_ctx->sgl_params, 104be086e7cSMintz, Yuval &m_st_ctx->data_desc, 105be086e7cSMintz, Yuval sgl_task_params); 106be086e7cSMintz, Yuval } 107be086e7cSMintz, Yuval 108da090917STomer Tayar /* Init Sqe */ 109be086e7cSMintz, Yuval init_common_sqe(task_params, SEND_FCOE_CMD); 110da090917STomer Tayar 111be086e7cSMintz, Yuval return 0; 112be086e7cSMintz, Yuval } 113be086e7cSMintz, Yuval 114be086e7cSMintz, Yuval int init_initiator_midpath_unsolicited_fcoe_task( 115be086e7cSMintz, Yuval struct fcoe_task_params *task_params, 116be086e7cSMintz, Yuval struct fcoe_tx_mid_path_params *mid_path_fc_header, 117be086e7cSMintz, Yuval struct scsi_sgl_task_params *tx_sgl_task_params, 118be086e7cSMintz, Yuval struct scsi_sgl_task_params *rx_sgl_task_params, 119be086e7cSMintz, Yuval u8 fw_to_place_fc_header) 120be086e7cSMintz, Yuval { 12121dd79e8STomer Tayar struct e4_fcoe_task_context *ctx = task_params->context; 122da090917STomer Tayar const u8 val_byte = ctx->ystorm_ag_context.byte0; 12321dd79e8STomer Tayar struct e4_ustorm_fcoe_task_ag_ctx *u_ag_ctx; 124be086e7cSMintz, Yuval struct ystorm_fcoe_task_st_ctx *y_st_ctx; 125be086e7cSMintz, Yuval struct tstorm_fcoe_task_st_ctx *t_st_ctx; 126be086e7cSMintz, Yuval struct mstorm_fcoe_task_st_ctx *m_st_ctx; 127be086e7cSMintz, Yuval u32 val; 128be086e7cSMintz, Yuval 129be086e7cSMintz, Yuval memset(ctx, 0, sizeof(*(ctx))); 130da090917STomer Tayar ctx->ystorm_ag_context.byte0 = val_byte; 131be086e7cSMintz, Yuval 132be086e7cSMintz, Yuval /* Init Ystorm */ 133be086e7cSMintz, Yuval y_st_ctx = &ctx->ystorm_st_context; 134be086e7cSMintz, Yuval init_scsi_sgl_context(&y_st_ctx->sgl_params, 135be086e7cSMintz, Yuval &y_st_ctx->data_desc, 136be086e7cSMintz, Yuval tx_sgl_task_params); 137be086e7cSMintz, Yuval SET_FIELD(y_st_ctx->sgl_mode, 138be086e7cSMintz, Yuval YSTORM_FCOE_TASK_ST_CTX_TX_SGL_MODE, SCSI_FAST_SGL); 139be086e7cSMintz, Yuval y_st_ctx->data_2_trns_rem = cpu_to_le32(task_params->tx_io_size); 140da090917STomer Tayar y_st_ctx->task_type = (u8)task_params->task_type; 141be086e7cSMintz, Yuval memcpy(&y_st_ctx->tx_info_union.tx_params.mid_path, 142be086e7cSMintz, Yuval mid_path_fc_header, sizeof(struct fcoe_tx_mid_path_params)); 143be086e7cSMintz, Yuval 144be086e7cSMintz, Yuval /* Init Mstorm */ 145be086e7cSMintz, Yuval m_st_ctx = &ctx->mstorm_st_context; 146be086e7cSMintz, Yuval init_scsi_sgl_context(&m_st_ctx->sgl_params, 147be086e7cSMintz, Yuval &m_st_ctx->data_desc, 148be086e7cSMintz, Yuval rx_sgl_task_params); 149be086e7cSMintz, Yuval SET_FIELD(m_st_ctx->flags, 150be086e7cSMintz, Yuval MSTORM_FCOE_TASK_ST_CTX_MP_INCLUDE_FC_HEADER, 151be086e7cSMintz, Yuval fw_to_place_fc_header); 152be086e7cSMintz, Yuval m_st_ctx->data_2_trns_rem = cpu_to_le32(task_params->rx_io_size); 153be086e7cSMintz, Yuval 154be086e7cSMintz, Yuval /* Init Tstorm */ 155be086e7cSMintz, Yuval t_st_ctx = &ctx->tstorm_st_context; 156be086e7cSMintz, Yuval t_st_ctx->read_only.cid = cpu_to_le32(task_params->conn_cid); 157be086e7cSMintz, Yuval val = cpu_to_le32(task_params->cq_rss_number); 158be086e7cSMintz, Yuval t_st_ctx->read_only.glbl_q_num = val; 159da090917STomer Tayar t_st_ctx->read_only.task_type = (u8)task_params->task_type; 160be086e7cSMintz, Yuval SET_FIELD(t_st_ctx->read_write.flags, 161be086e7cSMintz, Yuval FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_EXP_FIRST_FRAME, 1); 1626f359f99SArnd Bergmann t_st_ctx->read_write.rx_id = cpu_to_le16(FCOE_RX_ID); 163be086e7cSMintz, Yuval 164be086e7cSMintz, Yuval /* Init Ustorm */ 165be086e7cSMintz, Yuval u_ag_ctx = &ctx->ustorm_ag_context; 166be086e7cSMintz, Yuval u_ag_ctx->global_cq_num = cpu_to_le32(task_params->cq_rss_number); 167be086e7cSMintz, Yuval 168be086e7cSMintz, Yuval /* Init SQE */ 169be086e7cSMintz, Yuval init_common_sqe(task_params, SEND_FCOE_MIDPATH); 170be086e7cSMintz, Yuval task_params->sqe->additional_info_union.burst_length = 171be086e7cSMintz, Yuval tx_sgl_task_params->total_buffer_size; 172be086e7cSMintz, Yuval SET_FIELD(task_params->sqe->flags, 173be086e7cSMintz, Yuval FCOE_WQE_NUM_SGES, tx_sgl_task_params->num_sges); 174be086e7cSMintz, Yuval SET_FIELD(task_params->sqe->flags, FCOE_WQE_SGL_MODE, 175be086e7cSMintz, Yuval SCSI_FAST_SGL); 176be086e7cSMintz, Yuval 177be086e7cSMintz, Yuval return 0; 178be086e7cSMintz, Yuval } 179be086e7cSMintz, Yuval 180be086e7cSMintz, Yuval int init_initiator_abort_fcoe_task(struct fcoe_task_params *task_params) 181be086e7cSMintz, Yuval { 182be086e7cSMintz, Yuval init_common_sqe(task_params, SEND_FCOE_ABTS_REQUEST); 183be086e7cSMintz, Yuval return 0; 184be086e7cSMintz, Yuval } 185be086e7cSMintz, Yuval 186be086e7cSMintz, Yuval int init_initiator_cleanup_fcoe_task(struct fcoe_task_params *task_params) 187be086e7cSMintz, Yuval { 188be086e7cSMintz, Yuval init_common_sqe(task_params, FCOE_EXCHANGE_CLEANUP); 189be086e7cSMintz, Yuval return 0; 190be086e7cSMintz, Yuval } 191be086e7cSMintz, Yuval 192be086e7cSMintz, Yuval int init_initiator_sequence_recovery_fcoe_task( 193da090917STomer Tayar struct fcoe_task_params *task_params, u32 desired_offset) 194be086e7cSMintz, Yuval { 195be086e7cSMintz, Yuval init_common_sqe(task_params, FCOE_SEQUENCE_RECOVERY); 196da090917STomer Tayar task_params->sqe->additional_info_union.seq_rec_updated_offset = 197da090917STomer Tayar desired_offset; 198be086e7cSMintz, Yuval return 0; 199be086e7cSMintz, Yuval } 200