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;