1 /* QLogic FCoE Offload Driver
2 * Copyright (c) 2016-2017 Cavium Inc.
4 * This software is available under the terms of the GNU General Public License
5 * (GPL) Version 2, available from the file COPYING in the main directory of
8 #include "drv_fcoe_fw_funcs.h"
9 #include "drv_scsi_fw_funcs.h"
11 #define FCOE_RX_ID (0xFFFFu)
13 static inline void init_common_sqe(struct fcoe_task_params *task_params,
14 enum fcoe_sqe_request_type request_type)
16 memset(task_params->sqe, 0, sizeof(*(task_params->sqe)));
17 SET_FIELD(task_params->sqe->flags, FCOE_WQE_REQ_TYPE,
19 task_params->sqe->task_id = task_params->itid;
22 int init_initiator_rw_fcoe_task(struct fcoe_task_params *task_params,
23 struct scsi_sgl_task_params *sgl_task_params,
24 struct regpair sense_data_buffer_phys_addr,
26 u8 fcp_cmd_payload[32])
28 struct fcoe_task_context *ctx = task_params->context;
29 struct ystorm_fcoe_task_st_ctx *y_st_ctx;
30 struct tstorm_fcoe_task_st_ctx *t_st_ctx;
31 struct ustorm_fcoe_task_ag_ctx *u_ag_ctx;
32 struct mstorm_fcoe_task_st_ctx *m_st_ctx;
36 memset(ctx, 0, sizeof(*(ctx)));
37 slow_sgl = scsi_is_slow_sgl(sgl_task_params->num_sges,
38 sgl_task_params->small_mid_sge);
39 io_size = (task_params->task_type == FCOE_TASK_TYPE_WRITE_INITIATOR ?
40 task_params->tx_io_size : task_params->rx_io_size);
43 y_st_ctx = &ctx->ystorm_st_context;
44 y_st_ctx->data_2_trns_rem = cpu_to_le32(io_size);
45 y_st_ctx->task_rety_identifier = cpu_to_le32(task_retry_id);
46 y_st_ctx->task_type = task_params->task_type;
47 memcpy(&y_st_ctx->tx_info_union.fcp_cmd_payload,
48 fcp_cmd_payload, sizeof(struct fcoe_fcp_cmd_payload));
51 t_st_ctx = &ctx->tstorm_st_context;
52 t_st_ctx->read_only.dev_type = (task_params->is_tape_device == 1 ?
53 FCOE_TASK_DEV_TYPE_TAPE :
54 FCOE_TASK_DEV_TYPE_DISK);
55 t_st_ctx->read_only.cid = cpu_to_le32(task_params->conn_cid);
56 val = cpu_to_le32(task_params->cq_rss_number);
57 t_st_ctx->read_only.glbl_q_num = val;
58 t_st_ctx->read_only.fcp_cmd_trns_size = cpu_to_le32(io_size);
59 t_st_ctx->read_only.task_type = task_params->task_type;
60 SET_FIELD(t_st_ctx->read_write.flags,
61 FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_EXP_FIRST_FRAME, 1);
62 t_st_ctx->read_write.rx_id = cpu_to_le16(FCOE_RX_ID);
65 u_ag_ctx = &ctx->ustorm_ag_context;
66 u_ag_ctx->global_cq_num = cpu_to_le32(task_params->cq_rss_number);
68 /* Mstorm buffer for sense/rsp data placement */
69 m_st_ctx = &ctx->mstorm_st_context;
70 val = cpu_to_le32(sense_data_buffer_phys_addr.hi);
71 m_st_ctx->rsp_buf_addr.hi = val;
72 val = cpu_to_le32(sense_data_buffer_phys_addr.lo);
73 m_st_ctx->rsp_buf_addr.lo = val;
75 if (task_params->task_type == FCOE_TASK_TYPE_WRITE_INITIATOR) {
77 y_st_ctx->expect_first_xfer = 1;
79 /* Set the amount of super SGEs. Can be up to 4. */
80 SET_FIELD(y_st_ctx->sgl_mode,
81 YSTORM_FCOE_TASK_ST_CTX_TX_SGL_MODE,
82 (slow_sgl ? SCSI_TX_SLOW_SGL : SCSI_FAST_SGL));
83 init_scsi_sgl_context(&y_st_ctx->sgl_params,
88 SET_FIELD(m_st_ctx->flags,
89 MSTORM_FCOE_TASK_ST_CTX_TX_SGL_MODE,
90 (slow_sgl ? SCSI_TX_SLOW_SGL : SCSI_FAST_SGL));
93 SET_FIELD(t_st_ctx->read_write.flags,
94 FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_RX_SGL_MODE,
95 (slow_sgl ? SCSI_TX_SLOW_SGL : SCSI_FAST_SGL));
98 m_st_ctx->data_2_trns_rem = cpu_to_le32(io_size);
99 init_scsi_sgl_context(&m_st_ctx->sgl_params,
100 &m_st_ctx->data_desc,
104 init_common_sqe(task_params, SEND_FCOE_CMD);
108 int init_initiator_midpath_unsolicited_fcoe_task(
109 struct fcoe_task_params *task_params,
110 struct fcoe_tx_mid_path_params *mid_path_fc_header,
111 struct scsi_sgl_task_params *tx_sgl_task_params,
112 struct scsi_sgl_task_params *rx_sgl_task_params,
113 u8 fw_to_place_fc_header)
115 struct fcoe_task_context *ctx = task_params->context;
116 struct ystorm_fcoe_task_st_ctx *y_st_ctx;
117 struct tstorm_fcoe_task_st_ctx *t_st_ctx;
118 struct ustorm_fcoe_task_ag_ctx *u_ag_ctx;
119 struct mstorm_fcoe_task_st_ctx *m_st_ctx;
122 memset(ctx, 0, sizeof(*(ctx)));
125 y_st_ctx = &ctx->ystorm_st_context;
126 init_scsi_sgl_context(&y_st_ctx->sgl_params,
127 &y_st_ctx->data_desc,
129 SET_FIELD(y_st_ctx->sgl_mode,
130 YSTORM_FCOE_TASK_ST_CTX_TX_SGL_MODE, SCSI_FAST_SGL);
131 y_st_ctx->data_2_trns_rem = cpu_to_le32(task_params->tx_io_size);
132 y_st_ctx->task_type = task_params->task_type;
133 memcpy(&y_st_ctx->tx_info_union.tx_params.mid_path,
134 mid_path_fc_header, sizeof(struct fcoe_tx_mid_path_params));
137 m_st_ctx = &ctx->mstorm_st_context;
138 init_scsi_sgl_context(&m_st_ctx->sgl_params,
139 &m_st_ctx->data_desc,
141 SET_FIELD(m_st_ctx->flags,
142 MSTORM_FCOE_TASK_ST_CTX_MP_INCLUDE_FC_HEADER,
143 fw_to_place_fc_header);
144 m_st_ctx->data_2_trns_rem = cpu_to_le32(task_params->rx_io_size);
147 t_st_ctx = &ctx->tstorm_st_context;
148 t_st_ctx->read_only.cid = cpu_to_le32(task_params->conn_cid);
149 val = cpu_to_le32(task_params->cq_rss_number);
150 t_st_ctx->read_only.glbl_q_num = val;
151 t_st_ctx->read_only.task_type = task_params->task_type;
152 SET_FIELD(t_st_ctx->read_write.flags,
153 FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_EXP_FIRST_FRAME, 1);
154 t_st_ctx->read_write.rx_id = cpu_to_le16(FCOE_RX_ID);
157 u_ag_ctx = &ctx->ustorm_ag_context;
158 u_ag_ctx->global_cq_num = cpu_to_le32(task_params->cq_rss_number);
161 init_common_sqe(task_params, SEND_FCOE_MIDPATH);
162 task_params->sqe->additional_info_union.burst_length =
163 tx_sgl_task_params->total_buffer_size;
164 SET_FIELD(task_params->sqe->flags,
165 FCOE_WQE_NUM_SGES, tx_sgl_task_params->num_sges);
166 SET_FIELD(task_params->sqe->flags, FCOE_WQE_SGL_MODE,
172 int init_initiator_abort_fcoe_task(struct fcoe_task_params *task_params)
174 init_common_sqe(task_params, SEND_FCOE_ABTS_REQUEST);
178 int init_initiator_cleanup_fcoe_task(struct fcoe_task_params *task_params)
180 init_common_sqe(task_params, FCOE_EXCHANGE_CLEANUP);
184 int init_initiator_sequence_recovery_fcoe_task(
185 struct fcoe_task_params *task_params, u32 off)
187 init_common_sqe(task_params, FCOE_SEQUENCE_RECOVERY);
188 task_params->sqe->additional_info_union.seq_rec_updated_offset = off;