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
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
|
/*
* QLogic Fibre Channel HBA Driver
* Copyright (c) 2003-2013 QLogic Corporation
*
* See LICENSE.qla2xxx for copyright and licensing details.
*/
/*
* qla2x00_debounce_register
* Debounce register.
*
* Input:
* port = register address.
*
* Returns:
* register value.
*/
static __inline__ uint16_t
qla2x00_debounce_register(volatile uint16_t __iomem *addr)
{
volatile uint16_t first;
volatile uint16_t second;
do {
first = RD_REG_WORD(addr);
barrier();
cpu_relax();
second = RD_REG_WORD(addr);
} while (first != second);
return (first);
}
static inline void
qla2x00_poll(struct rsp_que *rsp)
{
unsigned long flags;
struct qla_hw_data *ha = rsp->hw;
local_irq_save(flags);
if (IS_QLA82XX(ha))
qla82xx_poll(0, rsp);
else
ha->isp_ops->intr_handler(0, rsp);
local_irq_restore(flags);
}
static inline uint8_t *
host_to_fcp_swap(uint8_t *fcp, uint32_t bsize)
{
uint32_t *ifcp = (uint32_t *) fcp;
uint32_t *ofcp = (uint32_t *) fcp;
uint32_t iter = bsize >> 2;
for (; iter ; iter--)
*ofcp++ = swab32(*ifcp++);
return fcp;
}
static inline void
qla2x00_set_reserved_loop_ids(struct qla_hw_data *ha)
{
int i;
if (IS_FWI2_CAPABLE(ha))
return;
for (i = 0; i < SNS_FIRST_LOOP_ID; i++)
set_bit(i, ha->loop_id_map);
set_bit(MANAGEMENT_SERVER, ha->loop_id_map);
set_bit(BROADCAST, ha->loop_id_map);
}
static inline int
qla2x00_is_reserved_id(scsi_qla_host_t *vha, uint16_t loop_id)
{
struct qla_hw_data *ha = vha->hw;
if (IS_FWI2_CAPABLE(ha))
return (loop_id > NPH_LAST_HANDLE);
return ((loop_id > ha->max_loop_id && loop_id < SNS_FIRST_LOOP_ID) ||
loop_id == MANAGEMENT_SERVER || loop_id == BROADCAST);
}
static inline void
qla2x00_clear_loop_id(fc_port_t *fcport) {
struct qla_hw_data *ha = fcport->vha->hw;
if (fcport->loop_id == FC_NO_LOOP_ID ||
qla2x00_is_reserved_id(fcport->vha, fcport->loop_id))
return;
clear_bit(fcport->loop_id, ha->loop_id_map);
fcport->loop_id = FC_NO_LOOP_ID;
}
static inline void
qla2x00_clean_dsd_pool(struct qla_hw_data *ha, srb_t *sp)
{
struct dsd_dma *dsd_ptr, *tdsd_ptr;
struct crc_context *ctx;
ctx = (struct crc_context *)GET_CMD_CTX_SP(sp);
/* clean up allocated prev pool */
list_for_each_entry_safe(dsd_ptr, tdsd_ptr,
&ctx->dsd_list, list) {
dma_pool_free(ha->dl_dma_pool, dsd_ptr->dsd_addr,
dsd_ptr->dsd_list_dma);
list_del(&dsd_ptr->list);
kfree(dsd_ptr);
}
INIT_LIST_HEAD(&ctx->dsd_list);
}
static inline void
qla2x00_set_fcport_state(fc_port_t *fcport, int state)
{
int old_state;
old_state = atomic_read(&fcport->state);
atomic_set(&fcport->state, state);
/* Don't print state transitions during initial allocation of fcport */
if (old_state && old_state != state) {
ql_dbg(ql_dbg_disc, fcport->vha, 0x207d,
"FCPort state transitioned from %s to %s - "
"portid=%02x%02x%02x.\n",
port_state_str[old_state], port_state_str[state],
fcport->d_id.b.domain, fcport->d_id.b.area,
fcport->d_id.b.al_pa);
}
}
static inline int
qla2x00_hba_err_chk_enabled(srb_t *sp)
{
/*
* Uncomment when corresponding SCSI changes are done.
*
if (!sp->cmd->prot_chk)
return 0;
*
*/
switch (scsi_get_prot_op(GET_CMD_SP(sp))) {
case SCSI_PROT_READ_STRIP:
case SCSI_PROT_WRITE_INSERT:
if (ql2xenablehba_err_chk >= 1)
return 1;
break;
case SCSI_PROT_READ_PASS:
case SCSI_PROT_WRITE_PASS:
if (ql2xenablehba_err_chk >= 2)
return 1;
break;
case SCSI_PROT_READ_INSERT:
case SCSI_PROT_WRITE_STRIP:
return 1;
}
return 0;
}
static inline int
qla2x00_reset_active(scsi_qla_host_t *vha)
{
scsi_qla_host_t *base_vha = pci_get_drvdata(vha->hw->pdev);
/* Test appropriate base-vha and vha flags. */
return test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) ||
test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags);
}
static inline srb_t *
qla2x00_get_sp(scsi_qla_host_t *vha, fc_port_t *fcport, gfp_t flag)
{
srb_t *sp = NULL;
struct qla_hw_data *ha = vha->hw;
uint8_t bail;
QLA_VHA_MARK_BUSY(vha, bail);
if (unlikely(bail))
return NULL;
sp = mempool_alloc(ha->srb_mempool, flag);
if (!sp)
goto done;
memset(sp, 0, sizeof(*sp));
sp->fcport = fcport;
sp->iocbs = 1;
done:
if (!sp)
QLA_VHA_MARK_NOT_BUSY(vha);
return sp;
}
static inline void
qla2x00_rel_sp(scsi_qla_host_t *vha, srb_t *sp)
{
mempool_free(sp, vha->hw->srb_mempool);
QLA_VHA_MARK_NOT_BUSY(vha);
}
static inline void
qla2x00_init_timer(srb_t *sp, unsigned long tmo)
{
init_timer(&sp->u.iocb_cmd.timer);
sp->u.iocb_cmd.timer.expires = jiffies + tmo * HZ;
sp->u.iocb_cmd.timer.data = (unsigned long)sp;
sp->u.iocb_cmd.timer.function = qla2x00_sp_timeout;
add_timer(&sp->u.iocb_cmd.timer);
sp->free = qla2x00_sp_free;
}
static inline int
qla2x00_gid_list_size(struct qla_hw_data *ha)
{
return sizeof(struct gid_list_info) * ha->max_fibre_devices;
}
static inline void
qla2x00_do_host_ramp_up(scsi_qla_host_t *vha)
{
if (vha->hw->cfg_lun_q_depth >= ql2xmaxqdepth)
return;
/* Wait at least HOST_QUEUE_RAMPDOWN_INTERVAL before ramping up */
if (time_before(jiffies, (vha->hw->host_last_rampdown_time +
HOST_QUEUE_RAMPDOWN_INTERVAL)))
return;
/* Wait at least HOST_QUEUE_RAMPUP_INTERVAL between each ramp up */
if (time_before(jiffies, (vha->hw->host_last_rampup_time +
HOST_QUEUE_RAMPUP_INTERVAL)))
return;
set_bit(HOST_RAMP_UP_QUEUE_DEPTH, &vha->dpc_flags);
}
|
