Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
[linux-2.6-microblaze.git] / drivers / scsi / qla4xxx / ql4_inline.h
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 *
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
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
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
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
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
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 }