| /* |
| * QLogic iSCSI HBA Driver |
| * Copyright (c) 2003-2012 QLogic Corporation |
| * |
| * See LICENSE.qla4xxx for copyright and licensing details. |
| */ |
| |
| /* |
| * |
| * qla4xxx_lookup_ddb_by_fw_index |
| * This routine locates a device handle given the firmware device |
| * database index. If device doesn't exist, returns NULL. |
| * |
| * Input: |
| * ha - Pointer to host adapter structure. |
| * fw_ddb_index - Firmware's device database index |
| * |
| * Returns: |
| * Pointer to the corresponding internal device database structure |
| */ |
| static inline struct ddb_entry * |
| qla4xxx_lookup_ddb_by_fw_index(struct scsi_qla_host *ha, uint32_t fw_ddb_index) |
| { |
| struct ddb_entry *ddb_entry = NULL; |
| |
| if ((fw_ddb_index < MAX_DDB_ENTRIES) && |
| (ha->fw_ddb_index_map[fw_ddb_index] != |
| (struct ddb_entry *) INVALID_ENTRY)) { |
| ddb_entry = ha->fw_ddb_index_map[fw_ddb_index]; |
| } |
| |
| DEBUG3(printk("scsi%d: %s: ddb [%d], ddb_entry = %p\n", |
| ha->host_no, __func__, fw_ddb_index, ddb_entry)); |
| |
| return ddb_entry; |
| } |
| |
| static inline void |
| __qla4xxx_enable_intrs(struct scsi_qla_host *ha) |
| { |
| if (is_qla4022(ha) | is_qla4032(ha)) { |
| writel(set_rmask(IMR_SCSI_INTR_ENABLE), |
| &ha->reg->u1.isp4022.intr_mask); |
| readl(&ha->reg->u1.isp4022.intr_mask); |
| } else { |
| writel(set_rmask(CSR_SCSI_INTR_ENABLE), &ha->reg->ctrl_status); |
| readl(&ha->reg->ctrl_status); |
| } |
| set_bit(AF_INTERRUPTS_ON, &ha->flags); |
| } |
| |
| static inline void |
| __qla4xxx_disable_intrs(struct scsi_qla_host *ha) |
| { |
| if (is_qla4022(ha) | is_qla4032(ha)) { |
| writel(clr_rmask(IMR_SCSI_INTR_ENABLE), |
| &ha->reg->u1.isp4022.intr_mask); |
| readl(&ha->reg->u1.isp4022.intr_mask); |
| } else { |
| writel(clr_rmask(CSR_SCSI_INTR_ENABLE), &ha->reg->ctrl_status); |
| readl(&ha->reg->ctrl_status); |
| } |
| clear_bit(AF_INTERRUPTS_ON, &ha->flags); |
| } |
| |
| static inline void |
| qla4xxx_enable_intrs(struct scsi_qla_host *ha) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&ha->hardware_lock, flags); |
| __qla4xxx_enable_intrs(ha); |
| spin_unlock_irqrestore(&ha->hardware_lock, flags); |
| } |
| |
| static inline void |
| qla4xxx_disable_intrs(struct scsi_qla_host *ha) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&ha->hardware_lock, flags); |
| __qla4xxx_disable_intrs(ha); |
| spin_unlock_irqrestore(&ha->hardware_lock, flags); |
| } |