1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * QLogic iSCSI HBA Driver
4 * Copyright (c) 2003-2013 QLogic Corporation
5 */
6
7 /*
8 *
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.
12 *
13 * Input:
14 * ha - Pointer to host adapter structure.
15 * fw_ddb_index - Firmware's device database index
16 *
17 * Returns:
18 * Pointer to the corresponding internal device database structure
19 */
20 static inline struct ddb_entry *
qla4xxx_lookup_ddb_by_fw_index(struct scsi_qla_host * ha,uint32_t fw_ddb_index)21 qla4xxx_lookup_ddb_by_fw_index(struct scsi_qla_host *ha, uint32_t fw_ddb_index)
22 {
23 struct ddb_entry *ddb_entry = NULL;
24
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];
29 }
30
31 DEBUG3(printk("scsi%d: %s: ddb [%d], ddb_entry = %p\n",
32 ha->host_no, __func__, fw_ddb_index, ddb_entry));
33
34 return ddb_entry;
35 }
36
37 static inline void
__qla4xxx_enable_intrs(struct scsi_qla_host * ha)38 __qla4xxx_enable_intrs(struct scsi_qla_host *ha)
39 {
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);
44 } else {
45 writel(set_rmask(CSR_SCSI_INTR_ENABLE), &ha->reg->ctrl_status);
46 readl(&ha->reg->ctrl_status);
47 }
48 set_bit(AF_INTERRUPTS_ON, &ha->flags);
49 }
50
51 static inline void
__qla4xxx_disable_intrs(struct scsi_qla_host * ha)52 __qla4xxx_disable_intrs(struct scsi_qla_host *ha)
53 {
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);
58 } else {
59 writel(clr_rmask(CSR_SCSI_INTR_ENABLE), &ha->reg->ctrl_status);
60 readl(&ha->reg->ctrl_status);
61 }
62 clear_bit(AF_INTERRUPTS_ON, &ha->flags);
63 }
64
65 static inline void
qla4xxx_enable_intrs(struct scsi_qla_host * ha)66 qla4xxx_enable_intrs(struct scsi_qla_host *ha)
67 {
68 unsigned long flags;
69
70 spin_lock_irqsave(&ha->hardware_lock, flags);
71 __qla4xxx_enable_intrs(ha);
72 spin_unlock_irqrestore(&ha->hardware_lock, flags);
73 }
74
75 static inline void
qla4xxx_disable_intrs(struct scsi_qla_host * ha)76 qla4xxx_disable_intrs(struct scsi_qla_host *ha)
77 {
78 unsigned long flags;
79
80 spin_lock_irqsave(&ha->hardware_lock, flags);
81 __qla4xxx_disable_intrs(ha);
82 spin_unlock_irqrestore(&ha->hardware_lock, flags);
83 }
84
qla4xxx_get_chap_type(struct ql4_chap_table * chap_entry)85 static inline int qla4xxx_get_chap_type(struct ql4_chap_table *chap_entry)
86 {
87 int type;
88
89 if (chap_entry->flags & BIT_7)
90 type = LOCAL_CHAP;
91 else
92 type = BIDI_CHAP;
93
94 return type;
95 }
96