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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/i2o.h
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Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/linux/i2o.h')
-rw-r--r--include/linux/i2o.h1003
1 files changed, 1003 insertions, 0 deletions
diff --git a/include/linux/i2o.h b/include/linux/i2o.h
new file mode 100644
index 000000000000..ea9a3ad4b67f
--- /dev/null
+++ b/include/linux/i2o.h
@@ -0,0 +1,1003 @@
+/*
+ * I2O kernel space accessible structures/APIs
+ *
+ * (c) Copyright 1999, 2000 Red Hat Software
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ *************************************************************************
+ *
+ * This header file defined the I2O APIs/structures for use by
+ * the I2O kernel modules.
+ *
+ */
+
+#ifndef _I2O_H
+#define _I2O_H
+
+#ifdef __KERNEL__ /* This file to be included by kernel only */
+
+#include <linux/i2o-dev.h>
+
+/* How many different OSM's are we allowing */
+#define I2O_MAX_DRIVERS 8
+
+#include <asm/io.h>
+#include <asm/semaphore.h> /* Needed for MUTEX init macros */
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+
+/* message queue empty */
+#define I2O_QUEUE_EMPTY 0xffffffff
+
+/*
+ * Message structures
+ */
+struct i2o_message {
+ union {
+ struct {
+ u8 version_offset;
+ u8 flags;
+ u16 size;
+ u32 target_tid:12;
+ u32 init_tid:12;
+ u32 function:8;
+ u32 icntxt; /* initiator context */
+ u32 tcntxt; /* transaction context */
+ } s;
+ u32 head[4];
+ } u;
+ /* List follows */
+ u32 body[0];
+};
+
+/*
+ * Each I2O device entity has one of these. There is one per device.
+ */
+struct i2o_device {
+ i2o_lct_entry lct_data; /* Device LCT information */
+
+ struct i2o_controller *iop; /* Controlling IOP */
+ struct list_head list; /* node in IOP devices list */
+
+ struct device device;
+
+ struct semaphore lock; /* device lock */
+
+ struct class_device classdev; /* i2o device class */
+};
+
+/*
+ * Event structure provided to the event handling function
+ */
+struct i2o_event {
+ struct work_struct work;
+ struct i2o_device *i2o_dev; /* I2O device pointer from which the
+ event reply was initiated */
+ u16 size; /* Size of data in 32-bit words */
+ u32 tcntxt; /* Transaction context used at
+ registration */
+ u32 event_indicator; /* Event indicator from reply */
+ u32 data[0]; /* Event data from reply */
+};
+
+/*
+ * I2O classes which could be handled by the OSM
+ */
+struct i2o_class_id {
+ u16 class_id:12;
+};
+
+/*
+ * I2O driver structure for OSMs
+ */
+struct i2o_driver {
+ char *name; /* OSM name */
+ int context; /* Low 8 bits of the transaction info */
+ struct i2o_class_id *classes; /* I2O classes that this OSM handles */
+
+ /* Message reply handler */
+ int (*reply) (struct i2o_controller *, u32, struct i2o_message *);
+
+ /* Event handler */
+ void (*event) (struct i2o_event *);
+
+ struct workqueue_struct *event_queue; /* Event queue */
+
+ struct device_driver driver;
+
+ /* notification of changes */
+ void (*notify_controller_add) (struct i2o_controller *);
+ void (*notify_controller_remove) (struct i2o_controller *);
+ void (*notify_device_add) (struct i2o_device *);
+ void (*notify_device_remove) (struct i2o_device *);
+
+ struct semaphore lock;
+};
+
+/*
+ * Contains all information which are necessary for DMA operations
+ */
+struct i2o_dma {
+ void *virt;
+ dma_addr_t phys;
+ u32 len;
+};
+
+/*
+ * Context queue entry, used for 32-bit context on 64-bit systems
+ */
+struct i2o_context_list_element {
+ struct list_head list;
+ u32 context;
+ void *ptr;
+ unsigned long timestamp;
+};
+
+/*
+ * Each I2O controller has one of these objects
+ */
+struct i2o_controller {
+ char name[16];
+ int unit;
+ int type;
+
+ struct pci_dev *pdev; /* PCI device */
+
+ unsigned int short_req:1; /* use small block sizes */
+ unsigned int no_quiesce:1; /* dont quiesce before reset */
+ unsigned int raptor:1; /* split bar */
+ unsigned int promise:1; /* Promise controller */
+
+#ifdef CONFIG_MTRR
+ int mtrr_reg0;
+ int mtrr_reg1;
+#endif
+
+ struct list_head devices; /* list of I2O devices */
+
+ struct notifier_block *event_notifer; /* Events */
+ atomic_t users;
+ struct list_head list; /* Controller list */
+ void __iomem *post_port; /* Inbout port address */
+ void __iomem *reply_port; /* Outbound port address */
+ void __iomem *irq_mask; /* Interrupt register address */
+
+ /* Dynamic LCT related data */
+
+ struct i2o_dma status; /* status of IOP */
+
+ struct i2o_dma hrt; /* HW Resource Table */
+ i2o_lct *lct; /* Logical Config Table */
+ struct i2o_dma dlct; /* Temp LCT */
+ struct semaphore lct_lock; /* Lock for LCT updates */
+ struct i2o_dma status_block; /* IOP status block */
+
+ struct i2o_dma base; /* controller messaging unit */
+ struct i2o_dma in_queue; /* inbound message queue Host->IOP */
+ struct i2o_dma out_queue; /* outbound message queue IOP->Host */
+
+ unsigned int battery:1; /* Has a battery backup */
+ unsigned int io_alloc:1; /* An I/O resource was allocated */
+ unsigned int mem_alloc:1; /* A memory resource was allocated */
+
+ struct resource io_resource; /* I/O resource allocated to the IOP */
+ struct resource mem_resource; /* Mem resource allocated to the IOP */
+
+ struct proc_dir_entry *proc_entry; /* /proc dir */
+
+ struct list_head bus_list; /* list of busses on IOP */
+ struct device device;
+ struct i2o_device *exec; /* Executive */
+#if BITS_PER_LONG == 64
+ spinlock_t context_list_lock; /* lock for context_list */
+ atomic_t context_list_counter; /* needed for unique contexts */
+ struct list_head context_list; /* list of context id's
+ and pointers */
+#endif
+ spinlock_t lock; /* lock for controller
+ configuration */
+
+ void *driver_data[I2O_MAX_DRIVERS]; /* storage for drivers */
+};
+
+/*
+ * I2O System table entry
+ *
+ * The system table contains information about all the IOPs in the
+ * system. It is sent to all IOPs so that they can create peer2peer
+ * connections between them.
+ */
+struct i2o_sys_tbl_entry {
+ u16 org_id;
+ u16 reserved1;
+ u32 iop_id:12;
+ u32 reserved2:20;
+ u16 seg_num:12;
+ u16 i2o_version:4;
+ u8 iop_state;
+ u8 msg_type;
+ u16 frame_size;
+ u16 reserved3;
+ u32 last_changed;
+ u32 iop_capabilities;
+ u32 inbound_low;
+ u32 inbound_high;
+};
+
+struct i2o_sys_tbl {
+ u8 num_entries;
+ u8 version;
+ u16 reserved1;
+ u32 change_ind;
+ u32 reserved2;
+ u32 reserved3;
+ struct i2o_sys_tbl_entry iops[0];
+};
+
+extern struct list_head i2o_controllers;
+
+/* Message functions */
+static inline u32 i2o_msg_get(struct i2o_controller *, struct i2o_message __iomem **);
+extern u32 i2o_msg_get_wait(struct i2o_controller *, struct i2o_message __iomem **,
+ int);
+static inline void i2o_msg_post(struct i2o_controller *, u32);
+static inline int i2o_msg_post_wait(struct i2o_controller *, u32,
+ unsigned long);
+extern int i2o_msg_post_wait_mem(struct i2o_controller *, u32, unsigned long,
+ struct i2o_dma *);
+extern void i2o_msg_nop(struct i2o_controller *, u32);
+static inline void i2o_flush_reply(struct i2o_controller *, u32);
+
+/* DMA handling functions */
+static inline int i2o_dma_alloc(struct device *, struct i2o_dma *, size_t,
+ unsigned int);
+static inline void i2o_dma_free(struct device *, struct i2o_dma *);
+int i2o_dma_realloc(struct device *, struct i2o_dma *, size_t, unsigned int);
+
+static inline int i2o_dma_map(struct device *, struct i2o_dma *);
+static inline void i2o_dma_unmap(struct device *, struct i2o_dma *);
+
+/* IOP functions */
+extern int i2o_status_get(struct i2o_controller *);
+
+extern int i2o_event_register(struct i2o_device *, struct i2o_driver *, int,
+ u32);
+extern struct i2o_device *i2o_iop_find_device(struct i2o_controller *, u16);
+extern struct i2o_controller *i2o_find_iop(int);
+
+/* Functions needed for handling 64-bit pointers in 32-bit context */
+#if BITS_PER_LONG == 64
+extern u32 i2o_cntxt_list_add(struct i2o_controller *, void *);
+extern void *i2o_cntxt_list_get(struct i2o_controller *, u32);
+extern u32 i2o_cntxt_list_remove(struct i2o_controller *, void *);
+extern u32 i2o_cntxt_list_get_ptr(struct i2o_controller *, void *);
+
+static inline u32 i2o_ptr_low(void *ptr)
+{
+ return (u32) (u64) ptr;
+};
+
+static inline u32 i2o_ptr_high(void *ptr)
+{
+ return (u32) ((u64) ptr >> 32);
+};
+#else
+static inline u32 i2o_cntxt_list_add(struct i2o_controller *c, void *ptr)
+{
+ return (u32) ptr;
+};
+
+static inline void *i2o_cntxt_list_get(struct i2o_controller *c, u32 context)
+{
+ return (void *)context;
+};
+
+static inline u32 i2o_cntxt_list_remove(struct i2o_controller *c, void *ptr)
+{
+ return (u32) ptr;
+};
+
+static inline u32 i2o_cntxt_list_get_ptr(struct i2o_controller *c, void *ptr)
+{
+ return (u32) ptr;
+};
+
+static inline u32 i2o_ptr_low(void *ptr)
+{
+ return (u32) ptr;
+};
+
+static inline u32 i2o_ptr_high(void *ptr)
+{
+ return 0;
+};
+#endif
+
+/* I2O driver (OSM) functions */
+extern int i2o_driver_register(struct i2o_driver *);
+extern void i2o_driver_unregister(struct i2o_driver *);
+
+/**
+ * i2o_driver_notify_controller_add - Send notification of added controller
+ * to a single I2O driver
+ *
+ * Send notification of added controller to a single registered driver.
+ */
+static inline void i2o_driver_notify_controller_add(struct i2o_driver *drv,
+ struct i2o_controller *c)
+{
+ if (drv->notify_controller_add)
+ drv->notify_controller_add(c);
+};
+
+/**
+ * i2o_driver_notify_controller_remove - Send notification of removed
+ * controller to a single I2O driver
+ *
+ * Send notification of removed controller to a single registered driver.
+ */
+static inline void i2o_driver_notify_controller_remove(struct i2o_driver *drv,
+ struct i2o_controller *c)
+{
+ if (drv->notify_controller_remove)
+ drv->notify_controller_remove(c);
+};
+
+/**
+ * i2o_driver_notify_device_add - Send notification of added device to a
+ * single I2O driver
+ *
+ * Send notification of added device to a single registered driver.
+ */
+static inline void i2o_driver_notify_device_add(struct i2o_driver *drv,
+ struct i2o_device *i2o_dev)
+{
+ if (drv->notify_device_add)
+ drv->notify_device_add(i2o_dev);
+};
+
+/**
+ * i2o_driver_notify_device_remove - Send notification of removed device
+ * to a single I2O driver
+ *
+ * Send notification of removed device to a single registered driver.
+ */
+static inline void i2o_driver_notify_device_remove(struct i2o_driver *drv,
+ struct i2o_device *i2o_dev)
+{
+ if (drv->notify_device_remove)
+ drv->notify_device_remove(i2o_dev);
+};
+
+extern void i2o_driver_notify_controller_add_all(struct i2o_controller *);
+extern void i2o_driver_notify_controller_remove_all(struct i2o_controller *);
+extern void i2o_driver_notify_device_add_all(struct i2o_device *);
+extern void i2o_driver_notify_device_remove_all(struct i2o_device *);
+
+/* I2O device functions */
+extern int i2o_device_claim(struct i2o_device *);
+extern int i2o_device_claim_release(struct i2o_device *);
+
+/* Exec OSM functions */
+extern int i2o_exec_lct_get(struct i2o_controller *);
+
+/* device to i2o_device and driver to i2o_driver convertion functions */
+#define to_i2o_driver(drv) container_of(drv,struct i2o_driver, driver)
+#define to_i2o_device(dev) container_of(dev, struct i2o_device, device)
+
+/*
+ * Messenger inlines
+ */
+static inline u32 I2O_POST_READ32(struct i2o_controller *c)
+{
+ rmb();
+ return readl(c->post_port);
+};
+
+static inline void I2O_POST_WRITE32(struct i2o_controller *c, u32 val)
+{
+ wmb();
+ writel(val, c->post_port);
+};
+
+static inline u32 I2O_REPLY_READ32(struct i2o_controller *c)
+{
+ rmb();
+ return readl(c->reply_port);
+};
+
+static inline void I2O_REPLY_WRITE32(struct i2o_controller *c, u32 val)
+{
+ wmb();
+ writel(val, c->reply_port);
+};
+
+static inline u32 I2O_IRQ_READ32(struct i2o_controller *c)
+{
+ rmb();
+ return readl(c->irq_mask);
+};
+
+static inline void I2O_IRQ_WRITE32(struct i2o_controller *c, u32 val)
+{
+ wmb();
+ writel(val, c->irq_mask);
+ wmb();
+};
+
+/**
+ * i2o_msg_get - obtain an I2O message from the IOP
+ * @c: I2O controller
+ * @msg: pointer to a I2O message pointer
+ *
+ * This function tries to get a message slot. If no message slot is
+ * available do not wait until one is availabe (see also i2o_msg_get_wait).
+ *
+ * On a success the message is returned and the pointer to the message is
+ * set in msg. The returned message is the physical page frame offset
+ * address from the read port (see the i2o spec). If no message is
+ * available returns I2O_QUEUE_EMPTY and msg is leaved untouched.
+ */
+static inline u32 i2o_msg_get(struct i2o_controller *c,
+ struct i2o_message __iomem **msg)
+{
+ u32 m;
+
+ if ((m = I2O_POST_READ32(c)) != I2O_QUEUE_EMPTY)
+ *msg = c->in_queue.virt + m;
+
+ return m;
+};
+
+/**
+ * i2o_msg_post - Post I2O message to I2O controller
+ * @c: I2O controller to which the message should be send
+ * @m: the message identifier
+ *
+ * Post the message to the I2O controller.
+ */
+static inline void i2o_msg_post(struct i2o_controller *c, u32 m)
+{
+ I2O_POST_WRITE32(c, m);
+};
+
+/**
+ * i2o_msg_post_wait - Post and wait a message and wait until return
+ * @c: controller
+ * @m: message to post
+ * @timeout: time in seconds to wait
+ *
+ * This API allows an OSM to post a message and then be told whether or
+ * not the system received a successful reply. If the message times out
+ * then the value '-ETIMEDOUT' is returned.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static inline int i2o_msg_post_wait(struct i2o_controller *c, u32 m,
+ unsigned long timeout)
+{
+ return i2o_msg_post_wait_mem(c, m, timeout, NULL);
+};
+
+/**
+ * i2o_flush_reply - Flush reply from I2O controller
+ * @c: I2O controller
+ * @m: the message identifier
+ *
+ * The I2O controller must be informed that the reply message is not needed
+ * anymore. If you forget to flush the reply, the message frame can't be
+ * used by the controller anymore and is therefore lost.
+ *
+ * FIXME: is there a timeout after which the controller reuse the message?
+ */
+static inline void i2o_flush_reply(struct i2o_controller *c, u32 m)
+{
+ I2O_REPLY_WRITE32(c, m);
+};
+
+/**
+ * i2o_out_to_virt - Turn an I2O message to a virtual address
+ * @c: controller
+ * @m: message engine value
+ *
+ * Turn a receive message from an I2O controller bus address into
+ * a Linux virtual address. The shared page frame is a linear block
+ * so we simply have to shift the offset. This function does not
+ * work for sender side messages as they are ioremap objects
+ * provided by the I2O controller.
+ */
+static inline struct i2o_message *i2o_msg_out_to_virt(struct i2o_controller *c,
+ u32 m)
+{
+ BUG_ON(m < c->out_queue.phys
+ || m >= c->out_queue.phys + c->out_queue.len);
+
+ return c->out_queue.virt + (m - c->out_queue.phys);
+};
+
+/**
+ * i2o_msg_in_to_virt - Turn an I2O message to a virtual address
+ * @c: controller
+ * @m: message engine value
+ *
+ * Turn a send message from an I2O controller bus address into
+ * a Linux virtual address. The shared page frame is a linear block
+ * so we simply have to shift the offset. This function does not
+ * work for receive side messages as they are kmalloc objects
+ * in a different pool.
+ */
+static inline struct i2o_message __iomem *i2o_msg_in_to_virt(struct i2o_controller *c,
+ u32 m)
+{
+ return c->in_queue.virt + m;
+};
+
+/**
+ * i2o_dma_alloc - Allocate DMA memory
+ * @dev: struct device pointer to the PCI device of the I2O controller
+ * @addr: i2o_dma struct which should get the DMA buffer
+ * @len: length of the new DMA memory
+ * @gfp_mask: GFP mask
+ *
+ * Allocate a coherent DMA memory and write the pointers into addr.
+ *
+ * Returns 0 on success or -ENOMEM on failure.
+ */
+static inline int i2o_dma_alloc(struct device *dev, struct i2o_dma *addr,
+ size_t len, unsigned int gfp_mask)
+{
+ addr->virt = dma_alloc_coherent(dev, len, &addr->phys, gfp_mask);
+ if (!addr->virt)
+ return -ENOMEM;
+
+ memset(addr->virt, 0, len);
+ addr->len = len;
+
+ return 0;
+};
+
+/**
+ * i2o_dma_free - Free DMA memory
+ * @dev: struct device pointer to the PCI device of the I2O controller
+ * @addr: i2o_dma struct which contains the DMA buffer
+ *
+ * Free a coherent DMA memory and set virtual address of addr to NULL.
+ */
+static inline void i2o_dma_free(struct device *dev, struct i2o_dma *addr)
+{
+ if (addr->virt) {
+ if (addr->phys)
+ dma_free_coherent(dev, addr->len, addr->virt,
+ addr->phys);
+ else
+ kfree(addr->virt);
+ addr->virt = NULL;
+ }
+};
+
+/**
+ * i2o_dma_map - Map the memory to DMA
+ * @dev: struct device pointer to the PCI device of the I2O controller
+ * @addr: i2o_dma struct which should be mapped
+ *
+ * Map the memory in addr->virt to coherent DMA memory and write the
+ * physical address into addr->phys.
+ *
+ * Returns 0 on success or -ENOMEM on failure.
+ */
+static inline int i2o_dma_map(struct device *dev, struct i2o_dma *addr)
+{
+ if (!addr->virt)
+ return -EFAULT;
+
+ if (!addr->phys)
+ addr->phys = dma_map_single(dev, addr->virt, addr->len,
+ DMA_BIDIRECTIONAL);
+ if (!addr->phys)
+ return -ENOMEM;
+
+ return 0;
+};
+
+/**
+ * i2o_dma_unmap - Unmap the DMA memory
+ * @dev: struct device pointer to the PCI device of the I2O controller
+ * @addr: i2o_dma struct which should be unmapped
+ *
+ * Unmap the memory in addr->virt from DMA memory.
+ */
+static inline void i2o_dma_unmap(struct device *dev, struct i2o_dma *addr)
+{
+ if (!addr->virt)
+ return;
+
+ if (addr->phys) {
+ dma_unmap_single(dev, addr->phys, addr->len, DMA_BIDIRECTIONAL);
+ addr->phys = 0;
+ }
+};
+
+/*
+ * Endian handling wrapped into the macro - keeps the core code
+ * cleaner.
+ */
+
+#define i2o_raw_writel(val, mem) __raw_writel(cpu_to_le32(val), mem)
+
+extern int i2o_parm_field_get(struct i2o_device *, int, int, void *, int);
+extern int i2o_parm_table_get(struct i2o_device *, int, int, int, void *, int,
+ void *, int);
+
+/* debugging and troubleshooting/diagnostic helpers. */
+#define osm_printk(level, format, arg...) \
+ printk(level "%s: " format, OSM_NAME , ## arg)
+
+#ifdef DEBUG
+#define osm_debug(format, arg...) \
+ osm_printk(KERN_DEBUG, format , ## arg)
+#else
+#define osm_debug(format, arg...) \
+ do { } while (0)
+#endif
+
+#define osm_err(format, arg...) \
+ osm_printk(KERN_ERR, format , ## arg)
+#define osm_info(format, arg...) \
+ osm_printk(KERN_INFO, format , ## arg)
+#define osm_warn(format, arg...) \
+ osm_printk(KERN_WARNING, format , ## arg)
+
+/* debugging functions */
+extern void i2o_report_status(const char *, const char *, struct i2o_message *);
+extern void i2o_dump_message(struct i2o_message *);
+extern void i2o_dump_hrt(struct i2o_controller *c);
+extern void i2o_debug_state(struct i2o_controller *c);
+
+/*
+ * Cache strategies
+ */
+
+/* The NULL strategy leaves everything up to the controller. This tends to be a
+ * pessimal but functional choice.
+ */
+#define CACHE_NULL 0
+/* Prefetch data when reading. We continually attempt to load the next 32 sectors
+ * into the controller cache.
+ */
+#define CACHE_PREFETCH 1
+/* Prefetch data when reading. We sometimes attempt to load the next 32 sectors
+ * into the controller cache. When an I/O is less <= 8K we assume its probably
+ * not sequential and don't prefetch (default)
+ */
+#define CACHE_SMARTFETCH 2
+/* Data is written to the cache and then out on to the disk. The I/O must be
+ * physically on the medium before the write is acknowledged (default without
+ * NVRAM)
+ */
+#define CACHE_WRITETHROUGH 17
+/* Data is written to the cache and then out on to the disk. The controller
+ * is permitted to write back the cache any way it wants. (default if battery
+ * backed NVRAM is present). It can be useful to set this for swap regardless of
+ * battery state.
+ */
+#define CACHE_WRITEBACK 18
+/* Optimise for under powered controllers, especially on RAID1 and RAID0. We
+ * write large I/O's directly to disk bypassing the cache to avoid the extra
+ * memory copy hits. Small writes are writeback cached
+ */
+#define CACHE_SMARTBACK 19
+/* Optimise for under powered controllers, especially on RAID1 and RAID0. We
+ * write large I/O's directly to disk bypassing the cache to avoid the extra
+ * memory copy hits. Small writes are writethrough cached. Suitable for devices
+ * lacking battery backup
+ */
+#define CACHE_SMARTTHROUGH 20
+
+/*
+ * Ioctl structures
+ */
+
+#define BLKI2OGRSTRAT _IOR('2', 1, int)
+#define BLKI2OGWSTRAT _IOR('2', 2, int)
+#define BLKI2OSRSTRAT _IOW('2', 3, int)
+#define BLKI2OSWSTRAT _IOW('2', 4, int)
+
+/*
+ * I2O Function codes
+ */
+
+/*
+ * Executive Class
+ */
+#define I2O_CMD_ADAPTER_ASSIGN 0xB3
+#define I2O_CMD_ADAPTER_READ 0xB2
+#define I2O_CMD_ADAPTER_RELEASE 0xB5
+#define I2O_CMD_BIOS_INFO_SET 0xA5
+#define I2O_CMD_BOOT_DEVICE_SET 0xA7
+#define I2O_CMD_CONFIG_VALIDATE 0xBB
+#define I2O_CMD_CONN_SETUP 0xCA
+#define I2O_CMD_DDM_DESTROY 0xB1
+#define I2O_CMD_DDM_ENABLE 0xD5
+#define I2O_CMD_DDM_QUIESCE 0xC7
+#define I2O_CMD_DDM_RESET 0xD9
+#define I2O_CMD_DDM_SUSPEND 0xAF
+#define I2O_CMD_DEVICE_ASSIGN 0xB7
+#define I2O_CMD_DEVICE_RELEASE 0xB9
+#define I2O_CMD_HRT_GET 0xA8
+#define I2O_CMD_ADAPTER_CLEAR 0xBE
+#define I2O_CMD_ADAPTER_CONNECT 0xC9
+#define I2O_CMD_ADAPTER_RESET 0xBD
+#define I2O_CMD_LCT_NOTIFY 0xA2
+#define I2O_CMD_OUTBOUND_INIT 0xA1
+#define I2O_CMD_PATH_ENABLE 0xD3
+#define I2O_CMD_PATH_QUIESCE 0xC5
+#define I2O_CMD_PATH_RESET 0xD7
+#define I2O_CMD_STATIC_MF_CREATE 0xDD
+#define I2O_CMD_STATIC_MF_RELEASE 0xDF
+#define I2O_CMD_STATUS_GET 0xA0
+#define I2O_CMD_SW_DOWNLOAD 0xA9
+#define I2O_CMD_SW_UPLOAD 0xAB
+#define I2O_CMD_SW_REMOVE 0xAD
+#define I2O_CMD_SYS_ENABLE 0xD1
+#define I2O_CMD_SYS_MODIFY 0xC1
+#define I2O_CMD_SYS_QUIESCE 0xC3
+#define I2O_CMD_SYS_TAB_SET 0xA3
+
+/*
+ * Utility Class
+ */
+#define I2O_CMD_UTIL_NOP 0x00
+#define I2O_CMD_UTIL_ABORT 0x01
+#define I2O_CMD_UTIL_CLAIM 0x09
+#define I2O_CMD_UTIL_RELEASE 0x0B
+#define I2O_CMD_UTIL_PARAMS_GET 0x06
+#define I2O_CMD_UTIL_PARAMS_SET 0x05
+#define I2O_CMD_UTIL_EVT_REGISTER 0x13
+#define I2O_CMD_UTIL_EVT_ACK 0x14
+#define I2O_CMD_UTIL_CONFIG_DIALOG 0x10
+#define I2O_CMD_UTIL_DEVICE_RESERVE 0x0D
+#define I2O_CMD_UTIL_DEVICE_RELEASE 0x0F
+#define I2O_CMD_UTIL_LOCK 0x17
+#define I2O_CMD_UTIL_LOCK_RELEASE 0x19
+#define I2O_CMD_UTIL_REPLY_FAULT_NOTIFY 0x15
+
+/*
+ * SCSI Host Bus Adapter Class
+ */
+#define I2O_CMD_SCSI_EXEC 0x81
+#define I2O_CMD_SCSI_ABORT 0x83
+#define I2O_CMD_SCSI_BUSRESET 0x27
+
+/*
+ * Random Block Storage Class
+ */
+#define I2O_CMD_BLOCK_READ 0x30
+#define I2O_CMD_BLOCK_WRITE 0x31
+#define I2O_CMD_BLOCK_CFLUSH 0x37
+#define I2O_CMD_BLOCK_MLOCK 0x49
+#define I2O_CMD_BLOCK_MUNLOCK 0x4B
+#define I2O_CMD_BLOCK_MMOUNT 0x41
+#define I2O_CMD_BLOCK_MEJECT 0x43
+#define I2O_CMD_BLOCK_POWER 0x70
+
+#define I2O_PRIVATE_MSG 0xFF
+
+/* Command status values */
+
+#define I2O_CMD_IN_PROGRESS 0x01
+#define I2O_CMD_REJECTED 0x02
+#define I2O_CMD_FAILED 0x03
+#define I2O_CMD_COMPLETED 0x04
+
+/* I2O API function return values */
+
+#define I2O_RTN_NO_ERROR 0
+#define I2O_RTN_NOT_INIT 1
+#define I2O_RTN_FREE_Q_EMPTY 2
+#define I2O_RTN_TCB_ERROR 3
+#define I2O_RTN_TRANSACTION_ERROR 4
+#define I2O_RTN_ADAPTER_ALREADY_INIT 5
+#define I2O_RTN_MALLOC_ERROR 6
+#define I2O_RTN_ADPTR_NOT_REGISTERED 7
+#define I2O_RTN_MSG_REPLY_TIMEOUT 8
+#define I2O_RTN_NO_STATUS 9
+#define I2O_RTN_NO_FIRM_VER 10
+#define I2O_RTN_NO_LINK_SPEED 11
+
+/* Reply message status defines for all messages */
+
+#define I2O_REPLY_STATUS_SUCCESS 0x00
+#define I2O_REPLY_STATUS_ABORT_DIRTY 0x01
+#define I2O_REPLY_STATUS_ABORT_NO_DATA_TRANSFER 0x02
+#define I2O_REPLY_STATUS_ABORT_PARTIAL_TRANSFER 0x03
+#define I2O_REPLY_STATUS_ERROR_DIRTY 0x04
+#define I2O_REPLY_STATUS_ERROR_NO_DATA_TRANSFER 0x05
+#define I2O_REPLY_STATUS_ERROR_PARTIAL_TRANSFER 0x06
+#define I2O_REPLY_STATUS_PROCESS_ABORT_DIRTY 0x08
+#define I2O_REPLY_STATUS_PROCESS_ABORT_NO_DATA_TRANSFER 0x09
+#define I2O_REPLY_STATUS_PROCESS_ABORT_PARTIAL_TRANSFER 0x0A
+#define I2O_REPLY_STATUS_TRANSACTION_ERROR 0x0B
+#define I2O_REPLY_STATUS_PROGRESS_REPORT 0x80
+
+/* Status codes and Error Information for Parameter functions */
+
+#define I2O_PARAMS_STATUS_SUCCESS 0x00
+#define I2O_PARAMS_STATUS_BAD_KEY_ABORT 0x01
+#define I2O_PARAMS_STATUS_BAD_KEY_CONTINUE 0x02
+#define I2O_PARAMS_STATUS_BUFFER_FULL 0x03
+#define I2O_PARAMS_STATUS_BUFFER_TOO_SMALL 0x04
+#define I2O_PARAMS_STATUS_FIELD_UNREADABLE 0x05
+#define I2O_PARAMS_STATUS_FIELD_UNWRITEABLE 0x06
+#define I2O_PARAMS_STATUS_INSUFFICIENT_FIELDS 0x07
+#define I2O_PARAMS_STATUS_INVALID_GROUP_ID 0x08
+#define I2O_PARAMS_STATUS_INVALID_OPERATION 0x09
+#define I2O_PARAMS_STATUS_NO_KEY_FIELD 0x0A
+#define I2O_PARAMS_STATUS_NO_SUCH_FIELD 0x0B
+#define I2O_PARAMS_STATUS_NON_DYNAMIC_GROUP 0x0C
+#define I2O_PARAMS_STATUS_OPERATION_ERROR 0x0D
+#define I2O_PARAMS_STATUS_SCALAR_ERROR 0x0E
+#define I2O_PARAMS_STATUS_TABLE_ERROR 0x0F
+#define I2O_PARAMS_STATUS_WRONG_GROUP_TYPE 0x10
+
+/* DetailedStatusCode defines for Executive, DDM, Util and Transaction error
+ * messages: Table 3-2 Detailed Status Codes.*/
+
+#define I2O_DSC_SUCCESS 0x0000
+#define I2O_DSC_BAD_KEY 0x0002
+#define I2O_DSC_TCL_ERROR 0x0003
+#define I2O_DSC_REPLY_BUFFER_FULL 0x0004
+#define I2O_DSC_NO_SUCH_PAGE 0x0005
+#define I2O_DSC_INSUFFICIENT_RESOURCE_SOFT 0x0006
+#define I2O_DSC_INSUFFICIENT_RESOURCE_HARD 0x0007
+#define I2O_DSC_CHAIN_BUFFER_TOO_LARGE 0x0009
+#define I2O_DSC_UNSUPPORTED_FUNCTION 0x000A
+#define I2O_DSC_DEVICE_LOCKED 0x000B
+#define I2O_DSC_DEVICE_RESET 0x000C
+#define I2O_DSC_INAPPROPRIATE_FUNCTION 0x000D
+#define I2O_DSC_INVALID_INITIATOR_ADDRESS 0x000E
+#define I2O_DSC_INVALID_MESSAGE_FLAGS 0x000F
+#define I2O_DSC_INVALID_OFFSET 0x0010
+#define I2O_DSC_INVALID_PARAMETER 0x0011
+#define I2O_DSC_INVALID_REQUEST 0x0012
+#define I2O_DSC_INVALID_TARGET_ADDRESS 0x0013
+#define I2O_DSC_MESSAGE_TOO_LARGE 0x0014
+#define I2O_DSC_MESSAGE_TOO_SMALL 0x0015
+#define I2O_DSC_MISSING_PARAMETER 0x0016
+#define I2O_DSC_TIMEOUT 0x0017
+#define I2O_DSC_UNKNOWN_ERROR 0x0018
+#define I2O_DSC_UNKNOWN_FUNCTION 0x0019
+#define I2O_DSC_UNSUPPORTED_VERSION 0x001A
+#define I2O_DSC_DEVICE_BUSY 0x001B
+#define I2O_DSC_DEVICE_NOT_AVAILABLE 0x001C
+
+/* DetailedStatusCode defines for Block Storage Operation: Table 6-7 Detailed
+ Status Codes.*/
+
+#define I2O_BSA_DSC_SUCCESS 0x0000
+#define I2O_BSA_DSC_MEDIA_ERROR 0x0001
+#define I2O_BSA_DSC_ACCESS_ERROR 0x0002
+#define I2O_BSA_DSC_DEVICE_FAILURE 0x0003
+#define I2O_BSA_DSC_DEVICE_NOT_READY 0x0004
+#define I2O_BSA_DSC_MEDIA_NOT_PRESENT 0x0005
+#define I2O_BSA_DSC_MEDIA_LOCKED 0x0006
+#define I2O_BSA_DSC_MEDIA_FAILURE 0x0007
+#define I2O_BSA_DSC_PROTOCOL_FAILURE 0x0008
+#define I2O_BSA_DSC_BUS_FAILURE 0x0009
+#define I2O_BSA_DSC_ACCESS_VIOLATION 0x000A
+#define I2O_BSA_DSC_WRITE_PROTECTED 0x000B
+#define I2O_BSA_DSC_DEVICE_RESET 0x000C
+#define I2O_BSA_DSC_VOLUME_CHANGED 0x000D
+#define I2O_BSA_DSC_TIMEOUT 0x000E
+
+/* FailureStatusCodes, Table 3-3 Message Failure Codes */
+
+#define I2O_FSC_TRANSPORT_SERVICE_SUSPENDED 0x81
+#define I2O_FSC_TRANSPORT_SERVICE_TERMINATED 0x82
+#define I2O_FSC_TRANSPORT_CONGESTION 0x83
+#define I2O_FSC_TRANSPORT_FAILURE 0x84
+#define I2O_FSC_TRANSPORT_STATE_ERROR 0x85
+#define I2O_FSC_TRANSPORT_TIME_OUT 0x86
+#define I2O_FSC_TRANSPORT_ROUTING_FAILURE 0x87
+#define I2O_FSC_TRANSPORT_INVALID_VERSION 0x88
+#define I2O_FSC_TRANSPORT_INVALID_OFFSET 0x89
+#define I2O_FSC_TRANSPORT_INVALID_MSG_FLAGS 0x8A
+#define I2O_FSC_TRANSPORT_FRAME_TOO_SMALL 0x8B
+#define I2O_FSC_TRANSPORT_FRAME_TOO_LARGE 0x8C
+#define I2O_FSC_TRANSPORT_INVALID_TARGET_ID 0x8D
+#define I2O_FSC_TRANSPORT_INVALID_INITIATOR_ID 0x8E
+#define I2O_FSC_TRANSPORT_INVALID_INITIATOR_CONTEXT 0x8F
+#define I2O_FSC_TRANSPORT_UNKNOWN_FAILURE 0xFF
+
+/* Device Claim Types */
+#define I2O_CLAIM_PRIMARY 0x01000000
+#define I2O_CLAIM_MANAGEMENT 0x02000000
+#define I2O_CLAIM_AUTHORIZED 0x03000000
+#define I2O_CLAIM_SECONDARY 0x04000000
+
+/* Message header defines for VersionOffset */
+#define I2OVER15 0x0001
+#define I2OVER20 0x0002
+
+/* Default is 1.5, FIXME: Need support for both 1.5 and 2.0 */
+#define I2OVERSION I2OVER15
+
+#define SGL_OFFSET_0 I2OVERSION
+#define SGL_OFFSET_4 (0x0040 | I2OVERSION)
+#define SGL_OFFSET_5 (0x0050 | I2OVERSION)
+#define SGL_OFFSET_6 (0x0060 | I2OVERSION)
+#define SGL_OFFSET_7 (0x0070 | I2OVERSION)
+#define SGL_OFFSET_8 (0x0080 | I2OVERSION)
+#define SGL_OFFSET_9 (0x0090 | I2OVERSION)
+#define SGL_OFFSET_10 (0x00A0 | I2OVERSION)
+
+#define TRL_OFFSET_5 (0x0050 | I2OVERSION)
+#define TRL_OFFSET_6 (0x0060 | I2OVERSION)
+
+/* Transaction Reply Lists (TRL) Control Word structure */
+#define TRL_SINGLE_FIXED_LENGTH 0x00
+#define TRL_SINGLE_VARIABLE_LENGTH 0x40
+#define TRL_MULTIPLE_FIXED_LENGTH 0x80
+
+ /* msg header defines for MsgFlags */
+#define MSG_STATIC 0x0100
+#define MSG_64BIT_CNTXT 0x0200
+#define MSG_MULTI_TRANS 0x1000
+#define MSG_FAIL 0x2000
+#define MSG_FINAL 0x4000
+#define MSG_REPLY 0x8000
+
+ /* minimum size msg */
+#define THREE_WORD_MSG_SIZE 0x00030000
+#define FOUR_WORD_MSG_SIZE 0x00040000
+#define FIVE_WORD_MSG_SIZE 0x00050000
+#define SIX_WORD_MSG_SIZE 0x00060000
+#define SEVEN_WORD_MSG_SIZE 0x00070000
+#define EIGHT_WORD_MSG_SIZE 0x00080000
+#define NINE_WORD_MSG_SIZE 0x00090000
+#define TEN_WORD_MSG_SIZE 0x000A0000
+#define ELEVEN_WORD_MSG_SIZE 0x000B0000
+#define I2O_MESSAGE_SIZE(x) ((x)<<16)
+
+/* Special TID Assignments */
+
+#define ADAPTER_TID 0
+#define HOST_TID 1
+
+#define MSG_FRAME_SIZE 128 /* i2o_scsi assumes >= 32 */
+#define REPLY_FRAME_SIZE 17
+#define SG_TABLESIZE 30
+#define NMBR_MSG_FRAMES 128
+
+#define MSG_POOL_SIZE (MSG_FRAME_SIZE*NMBR_MSG_FRAMES*sizeof(u32))
+
+#define I2O_POST_WAIT_OK 0
+#define I2O_POST_WAIT_TIMEOUT -ETIMEDOUT
+
+#define I2O_CONTEXT_LIST_MIN_LENGTH 15
+#define I2O_CONTEXT_LIST_USED 0x01
+#define I2O_CONTEXT_LIST_DELETED 0x02
+
+/* timeouts */
+#define I2O_TIMEOUT_INIT_OUTBOUND_QUEUE 15
+#define I2O_TIMEOUT_MESSAGE_GET 5
+#define I2O_TIMEOUT_RESET 30
+#define I2O_TIMEOUT_STATUS_GET 5
+#define I2O_TIMEOUT_LCT_GET 360
+#define I2O_TIMEOUT_SCSI_SCB_ABORT 240
+
+/* retries */
+#define I2O_HRT_GET_TRIES 3
+#define I2O_LCT_GET_TRIES 3
+
+/* request queue sizes */
+#define I2O_MAX_SECTORS 1024
+#define I2O_MAX_SEGMENTS 128
+
+#define I2O_REQ_MEMPOOL_SIZE 32
+
+#endif /* __KERNEL__ */
+#endif /* _I2O_H */