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authorDavid Somayajulu <david.somayajulu@qlogic.com>2006-09-19 10:28:00 -0700
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2006-10-04 13:34:04 -0500
commitafaf5a2d341d33b66b47c2716a263ce593460a08 (patch)
tree70aeac2f11cc644114eead55fa003be8288666f0 /drivers/scsi/qla4xxx/ql4_inline.h
parented542bed126caeefc6546b276e4af852d4d34f33 (diff)
[SCSI] Initial Commit of qla4xxx
open-iSCSI driver for Qlogic Corporation's iSCSI HBAs Signed-off-by: Ravi Anand <ravi.anand@qlogic.com> Signed-off-by: David Somayajulu <david.somayajulu@qlogic.com> Signed-off-by: Doug Maxey <dwm@bubba.enoyolf.org> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/qla4xxx/ql4_inline.h')
-rw-r--r--drivers/scsi/qla4xxx/ql4_inline.h84
1 files changed, 84 insertions, 0 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_inline.h b/drivers/scsi/qla4xxx/ql4_inline.h
new file mode 100644
index 000000000000..0d61797af7da
--- /dev/null
+++ b/drivers/scsi/qla4xxx/ql4_inline.h
@@ -0,0 +1,84 @@
+/*
+ * QLogic iSCSI HBA Driver
+ * Copyright (c) 2003-2006 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: index [%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)) {
+ 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)) {
+ 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);
+}