[SCSI] hptiop: add more adapter models and other fixes

Most code changes were made to support adapters based on Marvell IOP, plus some
other fixes.

- add more PCI device IDs
- support for adapters based on Marvell IOP
- fix a result code translation error on big-endian systems
- fix resource releasing bug when scsi_host_alloc() fail in hptiop_probe()
- update scsi_cmnd.resid when finishing a request
- correct some coding style issues

[akpm@linux-foundation.org: type fixes]
Signed-off-by: HighPoint Linux Team <linux@highpoint-tech.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

Documentation/scsi/hptiop.txt

-HIGHPOINT ROCKETRAID 3xxx RAID DRIVER (hptiop)
+HIGHPOINT ROCKETRAID 3xxx/4xxx ADAPTER DRIVER (hptiop)
 
 Controller Register Map
 -------------------------
 
-The controller IOP is accessed via PCI BAR0.
+For Intel IOP based adapters, the controller IOP is accessed via PCI BAR0:
 
      BAR0 offset    Register
             0x10    Inbound Message Register 0
@@ -18,6 +18,24 @@ The controller IOP is accessed via PCI BAR0.
             0x40    Inbound Queue Port
             0x44    Outbound Queue Port
 
+For Marvell IOP based adapters, the IOP is accessed via PCI BAR0 and BAR1:
+
+     BAR0 offset    Register
+         0x20400    Inbound Doorbell Register
+         0x20404    Inbound Interrupt Mask Register
+         0x20408    Outbound Doorbell Register
+         0x2040C    Outbound Interrupt Mask Register
+
+     BAR1 offset    Register
+             0x0    Inbound Queue Head Pointer
+             0x4    Inbound Queue Tail Pointer
+             0x8    Outbound Queue Head Pointer
+             0xC    Outbound Queue Tail Pointer
+            0x10    Inbound Message Register
+            0x14    Outbound Message Register
+     0x40-0x1040    Inbound Queue
+   0x1040-0x2040    Outbound Queue
+
 
 I/O Request Workflow
 ----------------------
@@ -73,15 +91,9 @@ The driver exposes following sysfs attributes:
      driver-version        R     driver version string
      firmware-version      R     firmware version string
 
-The driver registers char device "hptiop" to communicate with HighPoint RAID
-management software. Its ioctl routine acts as a general binary interface 
-between the IOP firmware and HighPoint RAID management software. New management
-functions can be implemented in application/firmware without modification
-in driver code.
-
 
 -----------------------------------------------------------------------------
-Copyright (C) 2006 HighPoint Technologies, Inc. All Rights Reserved.
+Copyright (C) 2006-2007 HighPoint Technologies, Inc. All Rights Reserved.
 
   This file is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of

drivers/scsi/Kconfig

@@ -573,10 +573,10 @@ config SCSI_ARCMSR_AER
 source "drivers/scsi/megaraid/Kconfig.megaraid"
 
 config SCSI_HPTIOP
-	tristate "HighPoint RocketRAID 3xxx Controller support"
+	tristate "HighPoint RocketRAID 3xxx/4xxx Controller support"
 	depends on SCSI && PCI
 	help
-	  This option enables support for HighPoint RocketRAID 3xxx
+	  This option enables support for HighPoint RocketRAID 3xxx/4xxx
 	  controllers.
 
 	  To compile this driver as a module, choose M here; the module

drivers/scsi/hptiop.h

 /*
- * HighPoint RR3xxx controller driver for Linux
+ * HighPoint RR3xxx/4xxx controller driver for Linux
  * Copyright (C) 2006-2007 HighPoint Technologies, Inc. All Rights Reserved.
  *
  * This program is free software; you can redistribute it and/or modify
@@ -18,8 +18,7 @@
 #ifndef _HPTIOP_H_
 #define _HPTIOP_H_
 
-struct hpt_iopmu
-{
+struct hpt_iopmu_itl {
 	__le32 resrved0[4];
 	__le32 inbound_msgaddr0;
 	__le32 inbound_msgaddr1;
@@ -54,6 +53,40 @@ struct hpt_iopmu
 #define IOPMU_INBOUND_INT_ERROR      8
 #define IOPMU_INBOUND_INT_POSTQUEUE  0x10
 
+#define MVIOP_QUEUE_LEN  512
+
+struct hpt_iopmu_mv {
+	__le32 inbound_head;
+	__le32 inbound_tail;
+	__le32 outbound_head;
+	__le32 outbound_tail;
+	__le32 inbound_msg;
+	__le32 outbound_msg;
+	__le32 reserve[10];
+	__le64 inbound_q[MVIOP_QUEUE_LEN];
+	__le64 outbound_q[MVIOP_QUEUE_LEN];
+};
+
+struct hpt_iopmv_regs {
+	__le32 reserved[0x20400 / 4];
+	__le32 inbound_doorbell;
+	__le32 inbound_intmask;
+	__le32 outbound_doorbell;
+	__le32 outbound_intmask;
+};
+
+#define MVIOP_MU_QUEUE_ADDR_HOST_MASK   (~(0x1full))
+#define MVIOP_MU_QUEUE_ADDR_HOST_BIT    4
+
+#define MVIOP_MU_QUEUE_ADDR_IOP_HIGH32  0xffffffff
+#define MVIOP_MU_QUEUE_REQUEST_RESULT_BIT   1
+#define MVIOP_MU_QUEUE_REQUEST_RETURN_CONTEXT 2
+
+#define MVIOP_MU_INBOUND_INT_MSG        1
+#define MVIOP_MU_INBOUND_INT_POSTQUEUE  2
+#define MVIOP_MU_OUTBOUND_INT_MSG       1
+#define MVIOP_MU_OUTBOUND_INT_POSTQUEUE 2
+
 enum hpt_iopmu_message {
 	/* host-to-iop messages */
 	IOPMU_INBOUND_MSG0_NOP = 0,
@@ -72,8 +105,7 @@ enum hpt_iopmu_message {
 	IOPMU_OUTBOUND_MSG0_REVALIDATE_DEVICE_MAX = 0x3ff,
 };
 
-struct hpt_iop_request_header
-{
+struct hpt_iop_request_header {
 	__le32 size;
 	__le32 type;
 	__le32 flags;
@@ -104,11 +136,10 @@ enum hpt_iop_result_type {
 	IOP_RESULT_RESET,
 	IOP_RESULT_INVALID_REQUEST,
 	IOP_RESULT_BAD_TARGET,
-	IOP_RESULT_MODE_SENSE_CHECK_CONDITION,
+	IOP_RESULT_CHECK_CONDITION,
 };
 
-struct hpt_iop_request_get_config
-{
+struct hpt_iop_request_get_config {
 	struct hpt_iop_request_header header;
 	__le32 interface_version;
 	__le32 firmware_version;
@@ -121,8 +152,7 @@ struct hpt_iop_request_get_config
 	__le32 sdram_size;
 };
 
-struct hpt_iop_request_set_config
-{
+struct hpt_iop_request_set_config {
 	struct hpt_iop_request_header header;
 	__le32 iop_id;
 	__le16 vbus_id;
@@ -130,15 +160,13 @@ struct hpt_iop_request_set_config
 	__le32 reserve[6];
 };
 
-struct hpt_iopsg
-{
+struct hpt_iopsg {
 	__le32 size;
 	__le32 eot; /* non-zero: end of table */
 	__le64 pci_address;
 };
 
-struct hpt_iop_request_block_command
-{
+struct hpt_iop_request_block_command {
 	struct hpt_iop_request_header header;
 	u8     channel;
 	u8     target;
@@ -156,8 +184,7 @@ struct hpt_iop_request_block_command
 #define IOP_BLOCK_COMMAND_FLUSH    4
 #define IOP_BLOCK_COMMAND_SHUTDOWN 5
 
-struct hpt_iop_request_scsi_command
-{
+struct hpt_iop_request_scsi_command {
 	struct hpt_iop_request_header header;
 	u8     channel;
 	u8     target;
@@ -168,8 +195,7 @@ struct hpt_iop_request_scsi_command
 	struct hpt_iopsg sg_list[1];
 };
 
-struct hpt_iop_request_ioctl_command
-{
+struct hpt_iop_request_ioctl_command {
 	struct hpt_iop_request_header header;
 	__le32 ioctl_code;
 	__le32 inbuf_size;
@@ -182,10 +208,10 @@ struct hpt_iop_request_ioctl_command
 #define HPTIOP_MAX_REQUESTS  256u
 
 struct hptiop_request {
-	struct hptiop_request * next;
-	void *                  req_virt;
+	struct hptiop_request *next;
+	void                  *req_virt;
 	u32                   req_shifted_phy;
-	struct scsi_cmnd *      scp;
+	struct scsi_cmnd      *scp;
 	int                   index;
 };
 
@@ -198,9 +224,21 @@ struct hpt_scsi_pointer {
 #define HPT_SCP(scp) ((struct hpt_scsi_pointer *)&(scp)->SCp)
 
 struct hptiop_hba {
-	struct hpt_iopmu __iomem * iop;
-	struct Scsi_Host * host;
-	struct pci_dev * pcidev;
+	struct hptiop_adapter_ops *ops;
+	union {
+		struct {
+			struct hpt_iopmu_itl __iomem *iop;
+		} itl;
+		struct {
+			struct hpt_iopmv_regs *regs;
+			struct hpt_iopmu_mv __iomem *mu;
+			void *internal_req;
+			dma_addr_t internal_req_phy;
+		} mv;
+	} u;
+
+	struct Scsi_Host *host;
+	struct pci_dev *pcidev;
 
 	/* IOP config info */
 	u32     interface_version;
@@ -213,15 +251,15 @@ struct hptiop_hba {
 
 	u32     req_size; /* host-allocated request buffer size */
 
-	int     iopintf_v2: 1;
-	int     initialized: 1;
-	int     msg_done: 1;
+	u32     iopintf_v2: 1;
+	u32     initialized: 1;
+	u32     msg_done: 1;
 
 	struct hptiop_request * req_list;
 	struct hptiop_request reqs[HPTIOP_MAX_REQUESTS];
 
 	/* used to free allocated dma area */
-	void *      dma_coherent;
+	void        *dma_coherent;
 	dma_addr_t  dma_coherent_handle;
 
 	atomic_t    reset_count;
@@ -231,19 +269,35 @@ struct hptiop_hba {
 	wait_queue_head_t ioctl_wq;
 };
 
-struct hpt_ioctl_k
-{
+struct hpt_ioctl_k {
 	struct hptiop_hba * hba;
 	u32    ioctl_code;
 	u32    inbuf_size;
 	u32    outbuf_size;
-	void * inbuf;
-	void * outbuf;
-	u32  * bytes_returned;
+	void   *inbuf;
+	void   *outbuf;
+	u32    *bytes_returned;
 	void (*done)(struct hpt_ioctl_k *);
 	int    result; /* HPT_IOCTL_RESULT_ */
 };
 
+struct hptiop_adapter_ops {
+	int  (*iop_wait_ready)(struct hptiop_hba *hba, u32 millisec);
+	int  (*internal_memalloc)(struct hptiop_hba *hba);
+	int  (*internal_memfree)(struct hptiop_hba *hba);
+	int  (*map_pci_bar)(struct hptiop_hba *hba);
+	void (*unmap_pci_bar)(struct hptiop_hba *hba);
+	void (*enable_intr)(struct hptiop_hba *hba);
+	void (*disable_intr)(struct hptiop_hba *hba);
+	int  (*get_config)(struct hptiop_hba *hba,
+				struct hpt_iop_request_get_config *config);
+	int  (*set_config)(struct hptiop_hba *hba,
+				struct hpt_iop_request_set_config *config);
+	int  (*iop_intr)(struct hptiop_hba *hba);
+	void (*post_msg)(struct hptiop_hba *hba, u32 msg);
+	void (*post_req)(struct hptiop_hba *hba, struct hptiop_request *_req);
+};
+
 #define HPT_IOCTL_RESULT_OK         0
 #define HPT_IOCTL_RESULT_FAILED     (-1)