1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
|
/* QLogic FCoE Offload Driver
* Copyright (c) 2016-2017 Cavium Inc.
*
* This software is available under the terms of the GNU General Public License
* (GPL) Version 2, available from the file COPYING in the main directory of
* this source tree.
*/
#include "drv_fcoe_fw_funcs.h"
#include "drv_scsi_fw_funcs.h"
#define FCOE_RX_ID (0xFFFFu)
static inline void init_common_sqe(struct fcoe_task_params *task_params,
enum fcoe_sqe_request_type request_type)
{
memset(task_params->sqe, 0, sizeof(*(task_params->sqe)));
SET_FIELD(task_params->sqe->flags, FCOE_WQE_REQ_TYPE,
request_type);
task_params->sqe->task_id = task_params->itid;
}
int init_initiator_rw_fcoe_task(struct fcoe_task_params *task_params,
struct scsi_sgl_task_params *sgl_task_params,
struct regpair sense_data_buffer_phys_addr,
u32 task_retry_id,
u8 fcp_cmd_payload[32])
{
struct e4_fcoe_task_context *ctx = task_params->context;
const u8 val_byte = ctx->ystorm_ag_context.byte0;
struct e4_ustorm_fcoe_task_ag_ctx *u_ag_ctx;
struct ystorm_fcoe_task_st_ctx *y_st_ctx;
struct tstorm_fcoe_task_st_ctx *t_st_ctx;
struct mstorm_fcoe_task_st_ctx *m_st_ctx;
u32 io_size, val;
bool slow_sgl;
memset(ctx, 0, sizeof(*(ctx)));
ctx->ystorm_ag_context.byte0 = val_byte;
slow_sgl = scsi_is_slow_sgl(sgl_task_params->num_sges,
sgl_task_params->small_mid_sge);
io_size = (task_params->task_type == FCOE_TASK_TYPE_WRITE_INITIATOR ?
task_params->tx_io_size : task_params->rx_io_size);
/* Ystorm ctx */
y_st_ctx = &ctx->ystorm_st_context;
y_st_ctx->data_2_trns_rem = cpu_to_le32(io_size);
y_st_ctx->task_rety_identifier = cpu_to_le32(task_retry_id);
y_st_ctx->task_type = (u8)task_params->task_type;
memcpy(&y_st_ctx->tx_info_union.fcp_cmd_payload,
fcp_cmd_payload, sizeof(struct fcoe_fcp_cmd_payload));
/* Tstorm ctx */
t_st_ctx = &ctx->tstorm_st_context;
t_st_ctx->read_only.dev_type = (u8)(task_params->is_tape_device == 1 ?
FCOE_TASK_DEV_TYPE_TAPE :
FCOE_TASK_DEV_TYPE_DISK);
t_st_ctx->read_only.cid = cpu_to_le32(task_params->conn_cid);
val = cpu_to_le32(task_params->cq_rss_number);
t_st_ctx->read_only.glbl_q_num = val;
t_st_ctx->read_only.fcp_cmd_trns_size = cpu_to_le32(io_size);
t_st_ctx->read_only.task_type = (u8)task_params->task_type;
SET_FIELD(t_st_ctx->read_write.flags,
FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_EXP_FIRST_FRAME, 1);
t_st_ctx->read_write.rx_id = cpu_to_le16(FCOE_RX_ID);
/* Ustorm ctx */
u_ag_ctx = &ctx->ustorm_ag_context;
u_ag_ctx->global_cq_num = cpu_to_le32(task_params->cq_rss_number);
/* Mstorm buffer for sense/rsp data placement */
m_st_ctx = &ctx->mstorm_st_context;
val = cpu_to_le32(sense_data_buffer_phys_addr.hi);
m_st_ctx->rsp_buf_addr.hi = val;
val = cpu_to_le32(sense_data_buffer_phys_addr.lo);
m_st_ctx->rsp_buf_addr.lo = val;
if (task_params->task_type == FCOE_TASK_TYPE_WRITE_INITIATOR) {
/* Ystorm ctx */
y_st_ctx->expect_first_xfer = 1;
/* Set the amount of super SGEs. Can be up to 4. */
SET_FIELD(y_st_ctx->sgl_mode,
YSTORM_FCOE_TASK_ST_CTX_TX_SGL_MODE,
(slow_sgl ? SCSI_TX_SLOW_SGL : SCSI_FAST_SGL));
init_scsi_sgl_context(&y_st_ctx->sgl_params,
&y_st_ctx->data_desc,
sgl_task_params);
/* Mstorm ctx */
SET_FIELD(m_st_ctx->flags,
MSTORM_FCOE_TASK_ST_CTX_TX_SGL_MODE,
(slow_sgl ? SCSI_TX_SLOW_SGL : SCSI_FAST_SGL));
m_st_ctx->sgl_params.sgl_num_sges =
cpu_to_le16(sgl_task_params->num_sges);
} else {
/* Tstorm ctx */
SET_FIELD(t_st_ctx->read_write.flags,
FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_RX_SGL_MODE,
(slow_sgl ? SCSI_TX_SLOW_SGL : SCSI_FAST_SGL));
/* Mstorm ctx */
m_st_ctx->data_2_trns_rem = cpu_to_le32(io_size);
init_scsi_sgl_context(&m_st_ctx->sgl_params,
&m_st_ctx->data_desc,
sgl_task_params);
}
/* Init Sqe */
init_common_sqe(task_params, SEND_FCOE_CMD);
return 0;
}
int init_initiator_midpath_unsolicited_fcoe_task(
struct fcoe_task_params *task_params,
struct fcoe_tx_mid_path_params *mid_path_fc_header,
struct scsi_sgl_task_params *tx_sgl_task_params,
struct scsi_sgl_task_params *rx_sgl_task_params,
u8 fw_to_place_fc_header)
{
struct e4_fcoe_task_context *ctx = task_params->context;
const u8 val_byte = ctx->ystorm_ag_context.byte0;
struct e4_ustorm_fcoe_task_ag_ctx *u_ag_ctx;
struct ystorm_fcoe_task_st_ctx *y_st_ctx;
struct tstorm_fcoe_task_st_ctx *t_st_ctx;
struct mstorm_fcoe_task_st_ctx *m_st_ctx;
u32 val;
memset(ctx, 0, sizeof(*(ctx)));
ctx->ystorm_ag_context.byte0 = val_byte;
/* Init Ystorm */
y_st_ctx = &ctx->ystorm_st_context;
init_scsi_sgl_context(&y_st_ctx->sgl_params,
&y_st_ctx->data_desc,
tx_sgl_task_params);
SET_FIELD(y_st_ctx->sgl_mode,
YSTORM_FCOE_TASK_ST_CTX_TX_SGL_MODE, SCSI_FAST_SGL);
y_st_ctx->data_2_trns_rem = cpu_to_le32(task_params->tx_io_size);
y_st_ctx->task_type = (u8)task_params->task_type;
memcpy(&y_st_ctx->tx_info_union.tx_params.mid_path,
mid_path_fc_header, sizeof(struct fcoe_tx_mid_path_params));
/* Init Mstorm */
m_st_ctx = &ctx->mstorm_st_context;
init_scsi_sgl_context(&m_st_ctx->sgl_params,
&m_st_ctx->data_desc,
rx_sgl_task_params);
SET_FIELD(m_st_ctx->flags,
MSTORM_FCOE_TASK_ST_CTX_MP_INCLUDE_FC_HEADER,
fw_to_place_fc_header);
m_st_ctx->data_2_trns_rem = cpu_to_le32(task_params->rx_io_size);
/* Init Tstorm */
t_st_ctx = &ctx->tstorm_st_context;
t_st_ctx->read_only.cid = cpu_to_le32(task_params->conn_cid);
val = cpu_to_le32(task_params->cq_rss_number);
t_st_ctx->read_only.glbl_q_num = val;
t_st_ctx->read_only.task_type = (u8)task_params->task_type;
SET_FIELD(t_st_ctx->read_write.flags,
FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_EXP_FIRST_FRAME, 1);
t_st_ctx->read_write.rx_id = cpu_to_le16(FCOE_RX_ID);
/* Init Ustorm */
u_ag_ctx = &ctx->ustorm_ag_context;
u_ag_ctx->global_cq_num = cpu_to_le32(task_params->cq_rss_number);
/* Init SQE */
init_common_sqe(task_params, SEND_FCOE_MIDPATH);
task_params->sqe->additional_info_union.burst_length =
tx_sgl_task_params->total_buffer_size;
SET_FIELD(task_params->sqe->flags,
FCOE_WQE_NUM_SGES, tx_sgl_task_params->num_sges);
SET_FIELD(task_params->sqe->flags, FCOE_WQE_SGL_MODE,
SCSI_FAST_SGL);
return 0;
}
int init_initiator_abort_fcoe_task(struct fcoe_task_params *task_params)
{
init_common_sqe(task_params, SEND_FCOE_ABTS_REQUEST);
return 0;
}
int init_initiator_cleanup_fcoe_task(struct fcoe_task_params *task_params)
{
init_common_sqe(task_params, FCOE_EXCHANGE_CLEANUP);
return 0;
}
int init_initiator_sequence_recovery_fcoe_task(
struct fcoe_task_params *task_params, u32 desired_offset)
{
init_common_sqe(task_params, FCOE_SEQUENCE_RECOVERY);
task_params->sqe->additional_info_union.seq_rec_updated_offset =
desired_offset;
return 0;
}
|
