1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * QLogic iSCSI HBA Driver
4 * Copyright (c) 2003-2013 QLogic Corporation
9 * qla4xxx_lookup_ddb_by_fw_index
10 * This routine locates a device handle given the firmware device
11 * database index. If device doesn't exist, returns NULL.
14 * ha - Pointer to host adapter structure.
15 * fw_ddb_index - Firmware's device database index
18 * Pointer to the corresponding internal device database structure
20 static inline struct ddb_entry *
21 qla4xxx_lookup_ddb_by_fw_index(struct scsi_qla_host *ha, uint32_t fw_ddb_index)
23 struct ddb_entry *ddb_entry = NULL;
25 if ((fw_ddb_index < MAX_DDB_ENTRIES) &&
26 (ha->fw_ddb_index_map[fw_ddb_index] !=
27 (struct ddb_entry *) INVALID_ENTRY)) {
28 ddb_entry = ha->fw_ddb_index_map[fw_ddb_index];
31 DEBUG3(printk("scsi%d: %s: ddb [%d], ddb_entry = %p\n",
32 ha->host_no, __func__, fw_ddb_index, ddb_entry));
38 __qla4xxx_enable_intrs(struct scsi_qla_host *ha)
40 if (is_qla4022(ha) | is_qla4032(ha)) {
41 writel(set_rmask(IMR_SCSI_INTR_ENABLE),
42 &ha->reg->u1.isp4022.intr_mask);
43 readl(&ha->reg->u1.isp4022.intr_mask);
45 writel(set_rmask(CSR_SCSI_INTR_ENABLE), &ha->reg->ctrl_status);
46 readl(&ha->reg->ctrl_status);
48 set_bit(AF_INTERRUPTS_ON, &ha->flags);
52 __qla4xxx_disable_intrs(struct scsi_qla_host *ha)
54 if (is_qla4022(ha) | is_qla4032(ha)) {
55 writel(clr_rmask(IMR_SCSI_INTR_ENABLE),
56 &ha->reg->u1.isp4022.intr_mask);
57 readl(&ha->reg->u1.isp4022.intr_mask);
59 writel(clr_rmask(CSR_SCSI_INTR_ENABLE), &ha->reg->ctrl_status);
60 readl(&ha->reg->ctrl_status);
62 clear_bit(AF_INTERRUPTS_ON, &ha->flags);
66 qla4xxx_enable_intrs(struct scsi_qla_host *ha)
70 spin_lock_irqsave(&ha->hardware_lock, flags);
71 __qla4xxx_enable_intrs(ha);
72 spin_unlock_irqrestore(&ha->hardware_lock, flags);
76 qla4xxx_disable_intrs(struct scsi_qla_host *ha)
80 spin_lock_irqsave(&ha->hardware_lock, flags);
81 __qla4xxx_disable_intrs(ha);
82 spin_unlock_irqrestore(&ha->hardware_lock, flags);
85 static inline int qla4xxx_get_chap_type(struct ql4_chap_table *chap_entry)
89 if (chap_entry->flags & BIT_7)