2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2012 QLogic Corporation
5 * See LICENSE.qla2xxx for copyright and licensing details.
9 * qla2x00_debounce_register
13 * port = register address.
18 static __inline__
uint16_t
19 qla2x00_debounce_register(volatile uint16_t __iomem
*addr
)
21 volatile uint16_t first
;
22 volatile uint16_t second
;
25 first
= RD_REG_WORD(addr
);
28 second
= RD_REG_WORD(addr
);
29 } while (first
!= second
);
35 qla2x00_poll(struct rsp_que
*rsp
)
38 struct qla_hw_data
*ha
= rsp
->hw
;
39 local_irq_save(flags
);
43 ha
->isp_ops
->intr_handler(0, rsp
);
44 local_irq_restore(flags
);
47 static inline uint8_t *
48 host_to_fcp_swap(uint8_t *fcp
, uint32_t bsize
)
50 uint32_t *ifcp
= (uint32_t *) fcp
;
51 uint32_t *ofcp
= (uint32_t *) fcp
;
52 uint32_t iter
= bsize
>> 2;
55 *ofcp
++ = swab32(*ifcp
++);
61 qla2x00_set_reserved_loop_ids(struct qla_hw_data
*ha
)
65 if (IS_FWI2_CAPABLE(ha
))
68 for (i
= 0; i
< SNS_FIRST_LOOP_ID
; i
++)
69 set_bit(i
, ha
->loop_id_map
);
70 set_bit(MANAGEMENT_SERVER
, ha
->loop_id_map
);
71 set_bit(BROADCAST
, ha
->loop_id_map
);
75 qla2x00_is_reserved_id(scsi_qla_host_t
*vha
, uint16_t loop_id
)
77 struct qla_hw_data
*ha
= vha
->hw
;
78 if (IS_FWI2_CAPABLE(ha
))
79 return (loop_id
> NPH_LAST_HANDLE
);
81 return ((loop_id
> ha
->max_loop_id
&& loop_id
< SNS_FIRST_LOOP_ID
) ||
82 loop_id
== MANAGEMENT_SERVER
|| loop_id
== BROADCAST
);
86 qla2x00_clear_loop_id(fc_port_t
*fcport
) {
87 struct qla_hw_data
*ha
= fcport
->vha
->hw
;
89 if (fcport
->loop_id
== FC_NO_LOOP_ID
||
90 qla2x00_is_reserved_id(fcport
->vha
, fcport
->loop_id
))
93 clear_bit(fcport
->loop_id
, ha
->loop_id_map
);
94 fcport
->loop_id
= FC_NO_LOOP_ID
;
98 qla2x00_clean_dsd_pool(struct qla_hw_data
*ha
, srb_t
*sp
)
100 struct dsd_dma
*dsd_ptr
, *tdsd_ptr
;
101 struct crc_context
*ctx
;
103 ctx
= (struct crc_context
*)GET_CMD_CTX_SP(sp
);
105 /* clean up allocated prev pool */
106 list_for_each_entry_safe(dsd_ptr
, tdsd_ptr
,
107 &ctx
->dsd_list
, list
) {
108 dma_pool_free(ha
->dl_dma_pool
, dsd_ptr
->dsd_addr
,
109 dsd_ptr
->dsd_list_dma
);
110 list_del(&dsd_ptr
->list
);
113 INIT_LIST_HEAD(&ctx
->dsd_list
);
117 qla2x00_set_fcport_state(fc_port_t
*fcport
, int state
)
121 old_state
= atomic_read(&fcport
->state
);
122 atomic_set(&fcport
->state
, state
);
124 /* Don't print state transitions during initial allocation of fcport */
125 if (old_state
&& old_state
!= state
) {
126 ql_dbg(ql_dbg_disc
, fcport
->vha
, 0x207d,
127 "FCPort state transitioned from %s to %s - "
128 "portid=%02x%02x%02x.\n",
129 port_state_str
[old_state
], port_state_str
[state
],
130 fcport
->d_id
.b
.domain
, fcport
->d_id
.b
.area
,
131 fcport
->d_id
.b
.al_pa
);
136 qla2x00_hba_err_chk_enabled(srb_t
*sp
)
139 * Uncomment when corresponding SCSI changes are done.
141 if (!sp->cmd->prot_chk)
145 switch (scsi_get_prot_op(GET_CMD_SP(sp
))) {
146 case SCSI_PROT_READ_STRIP
:
147 case SCSI_PROT_WRITE_INSERT
:
148 if (ql2xenablehba_err_chk
>= 1)
151 case SCSI_PROT_READ_PASS
:
152 case SCSI_PROT_WRITE_PASS
:
153 if (ql2xenablehba_err_chk
>= 2)
156 case SCSI_PROT_READ_INSERT
:
157 case SCSI_PROT_WRITE_STRIP
:
164 qla2x00_reset_active(scsi_qla_host_t
*vha
)
166 scsi_qla_host_t
*base_vha
= pci_get_drvdata(vha
->hw
->pdev
);
168 /* Test appropriate base-vha and vha flags. */
169 return test_bit(ISP_ABORT_NEEDED
, &base_vha
->dpc_flags
) ||
170 test_bit(ABORT_ISP_ACTIVE
, &base_vha
->dpc_flags
) ||
171 test_bit(ISP_ABORT_RETRY
, &base_vha
->dpc_flags
) ||
172 test_bit(ISP_ABORT_NEEDED
, &vha
->dpc_flags
) ||
173 test_bit(ABORT_ISP_ACTIVE
, &vha
->dpc_flags
);
176 static inline srb_t
*
177 qla2x00_get_sp(scsi_qla_host_t
*vha
, fc_port_t
*fcport
, gfp_t flag
)
180 struct qla_hw_data
*ha
= vha
->hw
;
183 QLA_VHA_MARK_BUSY(vha
, bail
);
187 sp
= mempool_alloc(ha
->srb_mempool
, flag
);
191 memset(sp
, 0, sizeof(*sp
));
196 QLA_VHA_MARK_NOT_BUSY(vha
);
201 qla2x00_init_timer(srb_t
*sp
, unsigned long tmo
)
203 init_timer(&sp
->u
.iocb_cmd
.timer
);
204 sp
->u
.iocb_cmd
.timer
.expires
= jiffies
+ tmo
* HZ
;
205 sp
->u
.iocb_cmd
.timer
.data
= (unsigned long)sp
;
206 sp
->u
.iocb_cmd
.timer
.function
= qla2x00_sp_timeout
;
207 add_timer(&sp
->u
.iocb_cmd
.timer
);
208 sp
->free
= qla2x00_sp_free
;
212 qla2x00_gid_list_size(struct qla_hw_data
*ha
)
214 return sizeof(struct gid_list_info
) * ha
->max_fibre_devices
;
218 qla2x00_do_host_ramp_up(scsi_qla_host_t
*vha
)
220 if (vha
->hw
->cfg_lun_q_depth
>= ql2xmaxqdepth
)
223 /* Wait at least HOST_QUEUE_RAMPDOWN_INTERVAL before ramping up */
224 if (time_before(jiffies
, (vha
->hw
->host_last_rampdown_time
+
225 HOST_QUEUE_RAMPDOWN_INTERVAL
)))
228 /* Wait at least HOST_QUEUE_RAMPUP_INTERVAL between each ramp up */
229 if (time_before(jiffies
, (vha
->hw
->host_last_rampup_time
+
230 HOST_QUEUE_RAMPUP_INTERVAL
)))
233 set_bit(HOST_RAMP_UP_QUEUE_DEPTH
, &vha
->dpc_flags
);