| David Somayajulu | afaf5a2 | 2006-09-19 10:28:00 -0700 | [diff] [blame] | 1 | /* |
| 2 | * QLogic iSCSI HBA Driver |
| Vikas Chaudhary | 4a4f51e | 2013-08-16 07:03:04 -0400 | [diff] [blame] | 3 | * Copyright (c) 2003-2013 QLogic Corporation |
| David Somayajulu | afaf5a2 | 2006-09-19 10:28:00 -0700 | [diff] [blame] | 4 | * |
| 5 | * See LICENSE.qla4xxx for copyright and licensing details. |
| 6 | */ |
| 7 | |
| 8 | /* |
| 9 | * |
| 10 | * qla4xxx_lookup_ddb_by_fw_index |
| 11 | * This routine locates a device handle given the firmware device |
| 12 | * database index. If device doesn't exist, returns NULL. |
| 13 | * |
| 14 | * Input: |
| 15 | * ha - Pointer to host adapter structure. |
| 16 | * fw_ddb_index - Firmware's device database index |
| 17 | * |
| 18 | * Returns: |
| 19 | * Pointer to the corresponding internal device database structure |
| 20 | */ |
| 21 | static inline struct ddb_entry * |
| 22 | qla4xxx_lookup_ddb_by_fw_index(struct scsi_qla_host *ha, uint32_t fw_ddb_index) |
| 23 | { |
| 24 | struct ddb_entry *ddb_entry = NULL; |
| 25 | |
| 26 | if ((fw_ddb_index < MAX_DDB_ENTRIES) && |
| 27 | (ha->fw_ddb_index_map[fw_ddb_index] != |
| 28 | (struct ddb_entry *) INVALID_ENTRY)) { |
| 29 | ddb_entry = ha->fw_ddb_index_map[fw_ddb_index]; |
| 30 | } |
| 31 | |
| Vikas Chaudhary | f4f5df23 | 2010-07-28 15:53:44 +0530 | [diff] [blame] | 32 | DEBUG3(printk("scsi%d: %s: ddb [%d], ddb_entry = %p\n", |
| David Somayajulu | afaf5a2 | 2006-09-19 10:28:00 -0700 | [diff] [blame] | 33 | ha->host_no, __func__, fw_ddb_index, ddb_entry)); |
| 34 | |
| 35 | return ddb_entry; |
| 36 | } |
| 37 | |
| 38 | static inline void |
| 39 | __qla4xxx_enable_intrs(struct scsi_qla_host *ha) |
| 40 | { |
| David C Somayajulu | d915058 | 2006-11-15 17:38:40 -0800 | [diff] [blame] | 41 | if (is_qla4022(ha) | is_qla4032(ha)) { |
| David Somayajulu | afaf5a2 | 2006-09-19 10:28:00 -0700 | [diff] [blame] | 42 | writel(set_rmask(IMR_SCSI_INTR_ENABLE), |
| 43 | &ha->reg->u1.isp4022.intr_mask); |
| 44 | readl(&ha->reg->u1.isp4022.intr_mask); |
| 45 | } else { |
| 46 | writel(set_rmask(CSR_SCSI_INTR_ENABLE), &ha->reg->ctrl_status); |
| 47 | readl(&ha->reg->ctrl_status); |
| 48 | } |
| 49 | set_bit(AF_INTERRUPTS_ON, &ha->flags); |
| 50 | } |
| 51 | |
| 52 | static inline void |
| 53 | __qla4xxx_disable_intrs(struct scsi_qla_host *ha) |
| 54 | { |
| David C Somayajulu | d915058 | 2006-11-15 17:38:40 -0800 | [diff] [blame] | 55 | if (is_qla4022(ha) | is_qla4032(ha)) { |
| David Somayajulu | afaf5a2 | 2006-09-19 10:28:00 -0700 | [diff] [blame] | 56 | writel(clr_rmask(IMR_SCSI_INTR_ENABLE), |
| 57 | &ha->reg->u1.isp4022.intr_mask); |
| 58 | readl(&ha->reg->u1.isp4022.intr_mask); |
| 59 | } else { |
| 60 | writel(clr_rmask(CSR_SCSI_INTR_ENABLE), &ha->reg->ctrl_status); |
| 61 | readl(&ha->reg->ctrl_status); |
| 62 | } |
| 63 | clear_bit(AF_INTERRUPTS_ON, &ha->flags); |
| 64 | } |
| 65 | |
| 66 | static inline void |
| 67 | qla4xxx_enable_intrs(struct scsi_qla_host *ha) |
| 68 | { |
| 69 | unsigned long flags; |
| 70 | |
| 71 | spin_lock_irqsave(&ha->hardware_lock, flags); |
| 72 | __qla4xxx_enable_intrs(ha); |
| 73 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
| 74 | } |
| 75 | |
| 76 | static inline void |
| 77 | qla4xxx_disable_intrs(struct scsi_qla_host *ha) |
| 78 | { |
| 79 | unsigned long flags; |
| 80 | |
| 81 | spin_lock_irqsave(&ha->hardware_lock, flags); |
| 82 | __qla4xxx_disable_intrs(ha); |
| 83 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
| 84 | } |
| Adheer Chandravanshi | 26ffd7b | 2013-09-17 07:54:49 -0400 | [diff] [blame] | 85 | |
| 86 | static inline int qla4xxx_get_chap_type(struct ql4_chap_table *chap_entry) |
| 87 | { |
| 88 | int type; |
| 89 | |
| 90 | if (chap_entry->flags & BIT_7) |
| 91 | type = LOCAL_CHAP; |
| 92 | else |
| 93 | type = BIDI_CHAP; |
| 94 | |
| 95 | return type; |
| 96 | } |