RE: [PATCH] SCSI: improve arcmsr's error handlers on lk2.6.33

From: Nick Cheng
Date: Tue Mar 30 2010 - 00:36:34 EST

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Hi,
Any one is examining my patch?
I have another patch waiting to submit.
Thanks,
-----Original Message-----
From: Nick Cheng [mailto:nick.cheng@xxxxxxxxxxxx]
Sent: Wednesday, March 10, 2010 12:39 PM
To: 'linux-scsi@xxxxxxxxxxxxxxx'
Cc: 'James.Bottomley@xxxxxxxxxxxxxxxxxxxxx'; 'linux-kernel@xxxxxxxxxxxxxxx'
Subject: [PATCH] SCSI: improve arcmsr's error handlers on lk2.6.33

This is to principally improve arcmsr's error handlers, eh_bus_reset_handler
and eh_abort_handler.
Signed-off-by: Nick Cheng< nick.cheng@xxxxxxxxxxxx >
---
diff -uprN -X Documentation/dontdiff drivers/scsi/arcmsr/arcmsr_attr.c
drivers/scsi/arcmsr.1.20.00.15-91209/arcmsr_attr.c
--- drivers/scsi/arcmsr/arcmsr_attr.c 2010-02-25 02:52:17.000000000 +0800
+++ drivers/scsi/arcmsr.1.20.00.15-91209/arcmsr_attr.c 2008-06-13
11:02:58.000000000 +0800
@@ -189,6 +189,7 @@ static struct bin_attribute arcmsr_sysfs
.attr = {
.name = "mu_read",
.mode = S_IRUSR ,
+ .owner = THIS_MODULE,
},
.size = 1032,
.read = arcmsr_sysfs_iop_message_read,
@@ -198,6 +199,7 @@ static struct bin_attribute arcmsr_sysfs
.attr = {
.name = "mu_write",
.mode = S_IWUSR,
+ .owner = THIS_MODULE,
},
.size = 1032,
.write = arcmsr_sysfs_iop_message_write,
@@ -207,6 +209,7 @@ static struct bin_attribute arcmsr_sysfs
.attr = {
.name = "mu_clear",
.mode = S_IWUSR,
+ .owner = THIS_MODULE,
},
.size = 1,
.write = arcmsr_sysfs_iop_message_clear,
diff -uprN -X Documentation/dontdiff drivers/scsi/arcmsr/arcmsr.h
drivers/scsi/arcmsr.1.20.00.15-91209/arcmsr.h
--- drivers/scsi/arcmsr/arcmsr.h 2010-02-25 02:52:17.000000000 +0800
+++ drivers/scsi/arcmsr.1.20.00.15-91209/arcmsr.h 2010-02-01
12:41:34.000000000 +0800
@@ -48,16 +48,22 @@ struct device_attribute;
/*The limit of outstanding scsi command that firmware can handle*/
#define ARCMSR_MAX_OUTSTANDING_CMD
256
#define ARCMSR_MAX_FREECCB_NUM
320
-#define ARCMSR_DRIVER_VERSION "Driver Version 1.20.00.15
2008/02/27"
+#define ARCMSR_DRIVER_VERSION "Driver Version 1.20.00.15
2009/12/09"
#define ARCMSR_SCSI_INITIATOR_ID
255
#define ARCMSR_MAX_XFER_SECTORS
512
#define ARCMSR_MAX_XFER_SECTORS_B
4096
+#define ARCMSR_MAX_XFER_SECTORS_C
304
#define ARCMSR_MAX_TARGETID
17
#define ARCMSR_MAX_TARGETLUN
8
#define ARCMSR_MAX_CMD_PERLUN
ARCMSR_MAX_OUTSTANDING_CMD
#define ARCMSR_MAX_QBUFFER
4096
-#define ARCMSR_MAX_SG_ENTRIES
38
+#define ARCMSR_DEFAULT_SG_ENTRIES
38
#define ARCMSR_MAX_HBB_POSTQUEUE
264
+#define ARCMSR_MAX_XFER_LEN
0x26000 /* 152K */
+#define ARCMSR_CDB_SG_PAGE_LENGTH
256
+#ifndef PCI_DEVICE_ID_ARECA_1880
+#define PCI_DEVICE_ID_ARECA_1880 0x1880
+ #endif
/*

****************************************************************************
******
**
@@ -66,6 +72,17 @@ struct device_attribute;
#define ARC_SUCCESS 0
#define ARC_FAILURE 1
/*
+***************************************************************************
*******
+**
+***************************************************************************
*******
+*/
+#ifndef TRUE
+#define TRUE 1
+#endif
+#ifndef FALSE
+#define FALSE 0
+#endif
+/*

****************************************************************************
***
** split 64bits dma addressing

****************************************************************************
***
@@ -110,6 +127,8 @@ struct CMD_MESSAGE_FIELD
#define FUNCTION_SAY_HELLO 0x0807
#define FUNCTION_SAY_GOODBYE 0x0808
#define FUNCTION_FLUSH_ADAPTER_CACHE 0x0809
+#define FUNCTION_GET_FIRMWARE_STATUS 0x080A
+#define FUNCTION_HARDWARE_RESET 0x080B
/* ARECA IO CONTROL CODE*/
#define ARCMSR_MESSAGE_READ_RQBUFFER \
ARECA_SATA_RAID | FUNCTION_READ_RQBUFFER
@@ -130,34 +149,28 @@ struct CMD_MESSAGE_FIELD
#define ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE \
ARECA_SATA_RAID | FUNCTION_FLUSH_ADAPTER_CACHE
/* ARECA IOCTL ReturnCode */
-#define ARCMSR_MESSAGE_RETURNCODE_OK 0x00000001
-#define ARCMSR_MESSAGE_RETURNCODE_ERROR 0x00000006
-#define ARCMSR_MESSAGE_RETURNCODE_3F 0x0000003F
+#define ARCMSR_MESSAGE_RETURNCODE_OK 0x00000001
+#define ARCMSR_MESSAGE_RETURNCODE_ERROR 0x00000006
+#define ARCMSR_MESSAGE_RETURNCODE_3F 0x0000003F
+#define ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON 0x00000088
/*
*************************************************************
** structure for holding DMA address data
*************************************************************
*/
+#define IS_DMA64 (sizeof(dma_addr_t) == 8)
#define IS_SG64_ADDR 0x01000000 /* bit24 */
struct SG32ENTRY
{
__le32 length;
__le32 address;
-};
+}__attribute__ ((packed));
struct SG64ENTRY
{
__le32 length;
__le32 address;
__le32 addresshigh;
-};
-struct SGENTRY_UNION
-{
- union
- {
- struct SG32ENTRY sg32entry;
- struct SG64ENTRY sg64entry;
- }u;
-};
+}__attribute__ ((packed));
/*
********************************************************************
** Q Buffer of IOP Message Transfer
@@ -184,6 +197,9 @@ struct FIRMWARE_INFO
char model[8]; /*15, 60-67*/
char firmware_ver[16]; /*17, 68-83*/
char device_map[16]; /*21, 84-99*/
+ uint32_t cfgVersion; /*25,100-103
Added for checking of new firmware capability*/
+ uint8_t cfgSerial[16]; /*26,104-119*/
+ uint32_t cfgPicStatus;
/*30,120-123*/
};
/* signature of set and get firmware config */
#define ARCMSR_SIGNATURE_GET_CONFIG 0x87974060
@@ -210,6 +226,8 @@ struct FIRMWARE_INFO
#define ARCMSR_CCBREPLY_FLAG_ERROR 0x10000000
/* outbound firmware ok */
#define ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK 0x80000000
+/* ARC-1680 Bus Reset*/
+#define ARCMSR_ARC1680_BUS_RESET 0x00000003

/*
************************************************************************
@@ -261,11 +279,11 @@ struct FIRMWARE_INFO

/* data tunnel buffer between user space program and its firmware */
/* user space data to iop 128bytes */
-#define ARCMSR_IOCTL_WBUFFER 0x0000fe00
+#define ARCMSR_MESSAGE_WBUFFER 0x0000fe00
/* iop data to user space 128bytes */
-#define ARCMSR_IOCTL_RBUFFER 0x0000ff00
+#define ARCMSR_MESSAGE_RBUFFER 0x0000ff00
/* iop message_rwbuffer for message command */
-#define ARCMSR_MSGCODE_RWBUFFER 0x0000fa00
+#define ARCMSR_MESSAGE_RWBUFFER 0x0000fa00
/*

****************************************************************************
***
** ARECA SCSI COMMAND DESCRIPTOR BLOCK size 0x1F8 (504)
@@ -287,7 +305,7 @@ struct ARCMSR_CDB
#define ARCMSR_CDB_FLAG_HEADQ 0x08
#define ARCMSR_CDB_FLAG_ORDEREDQ 0x10

- uint8_t Reserved1;
+ uint8_t msgPages;
uint32_t Context;
uint32_t DataLength;
uint8_t Cdb[16];
@@ -300,10 +318,10 @@ struct ARCMSR_CDB
uint8_t
SenseData[15];
union
{
- struct SG32ENTRY
sg32entry[ARCMSR_MAX_SG_ENTRIES];
- struct SG64ENTRY
sg64entry[ARCMSR_MAX_SG_ENTRIES];
+ struct SG32ENTRY sg32entry[1];
+ struct SG64ENTRY sg64entry[1];
} u;
-};
+}__attribute__ ((packed));
/*

****************************************************************************
***
** Messaging Unit (MU) of the Intel R 80331 I/O processor(Type A) and
Type B processor
@@ -341,13 +359,13 @@ struct MessageUnit_B
uint32_t done_qbuffer[ARCMSR_MAX_HBB_POSTQUEUE];
uint32_t postq_index;
uint32_t doneq_index;
- void __iomem *drv2iop_doorbell_reg;
- void __iomem *drv2iop_doorbell_mask_reg;
- void __iomem *iop2drv_doorbell_reg;
- void __iomem *iop2drv_doorbell_mask_reg;
- void __iomem *msgcode_rwbuffer_reg;
- void __iomem *ioctl_wbuffer_reg;
- void __iomem *ioctl_rbuffer_reg;
+ uint32_t __iomem *drv2iop_doorbell;
+ uint32_t __iomem *drv2iop_doorbell_mask;
+ uint32_t __iomem *iop2drv_doorbell;
+ uint32_t __iomem *iop2drv_doorbell_mask;
+ uint32_t __iomem *message_rwbuffer;
+ uint32_t __iomem *message_wbuffer;
+ uint32_t __iomem *message_rbuffer;
};

/*
@@ -367,14 +385,18 @@ struct AdapterControlBlock
unsigned long vir2phy_offset;
/* Offset is used in making arc cdb physical to virtual calculations
*/
uint32_t outbound_int_enable;
-
+ spinlock_t eh_lock;
+ spinlock_t
ccblist_lock;
union {
struct MessageUnit_A __iomem * pmuA;
struct MessageUnit_B * pmuB;
};
/* message unit ATU inbound base address0 */
-
+ void __iomem *mem_base0;
+ void __iomem *mem_base1;
uint32_t acb_flags;
+ u16 dev_id;
+ uint8_t adapter_index;
#define ACB_F_SCSISTOPADAPTER 0x0001
#define ACB_F_MSG_STOP_BGRB 0x0002
/* stop RAID background rebuild */
@@ -390,7 +412,8 @@ struct AdapterControlBlock
#define ACB_F_BUS_RESET 0x0080
#define ACB_F_IOP_INITED 0x0100
/* iop init */
-
+ #define ACB_F_ABORT 0x0200
+ #define ACB_F_FIRMWARE_TRAP 0x0400
struct CommandControlBlock *
pccb_pool[ARCMSR_MAX_FREECCB_NUM];
/* used for memory free */
struct list_head ccb_free_list;
@@ -404,7 +427,8 @@ struct AdapterControlBlock
/* dma_coherent used for memory free */
dma_addr_t dma_coherent_handle;
/* dma_coherent_handle used for memory free */
-
+ dma_addr_t dma_coherent_handle_hbb_mu;
+ unsigned int uncache_size;
uint8_t rqbuffer[ARCMSR_MAX_QBUFFER];
/* data collection buffer for read from 80331 */
int32_t rqbuf_firstindex;
@@ -423,12 +447,23 @@ struct AdapterControlBlock
#define ARECA_RAID_GOOD 0xaa
uint32_t num_resets;
uint32_t num_aborts;
+ uint32_t signature;
uint32_t firm_request_len;
uint32_t firm_numbers_queue;
uint32_t firm_sdram_size;
uint32_t firm_hd_channels;
- char firm_model[12];
- char firm_version[20];
+ uint32_t firm_cfg_version;
+ char firm_model[12];
+ char firm_version[20];
+ char device_map[20]; /*21,84-99*/
+ struct work_struct arcmsr_do_message_isr_bh;
+ struct timer_list eternal_timer;
+ unsigned short fw_flag;
+ #define FW_NORMAL 0x0000
+ #define FW_BOG 0x0001
+ #define FW_DEADLOCK 0x0010
+ atomic_t rq_map_token;
+ atomic_t ante_token_value;
};/* HW_DEVICE_EXTENSION */
/*

****************************************************************************
***
@@ -437,66 +472,31 @@ struct AdapterControlBlock

****************************************************************************
***
*/
struct CommandControlBlock
-{
- struct ARCMSR_CDB arcmsr_cdb;
- /*
- ** 0-503 (size of CDB = 504):
- ** arcmsr messenger scsi command descriptor size 504 bytes
- */
- uint32_t cdb_shifted_phyaddr;
- /* 504-507 */
- uint32_t reserved1;
- /* 508-511 */
-#if BITS_PER_LONG == 64
+{ /*x32:sizeof struct_CCB=(32+60)byte, x64:sizeof
struct_CCB=(64+60)byte*/
+ struct list_head list;
/*x32: 8byte, x64: 16byte*/
+ struct scsi_cmnd *pcmd; /*8
bytes pointer of linux scsi command */
+ struct AdapterControlBlock *acb;
/*x32: 4byte, x64: 8byte*/
+ uint32_t shifted_cdb_phyaddr;
/*x32: 4byte, x64: 4byte*/
+ uint16_t ccb_flags;
/*x32: 2byte, x64: 2byte*/
+ #define CCB_FLAG_READ 0x0000
+ #define CCB_FLAG_WRITE 0x0001
+ #define CCB_FLAG_ERROR 0x0002
+ #define CCB_FLAG_FLUSHCACHE 0x0004
+ #define CCB_FLAG_MASTER_ABORTED 0x0008
+ uint16_t startdone;
/*x32:2byte,x32:2byte*/
+ #define ARCMSR_CCB_DONE
0x0000
+ #define ARCMSR_CCB_START 0x55AA
+ #define ARCMSR_CCB_ABORTED 0xAA55
+ #define ARCMSR_CCB_ILLEGAL 0xFFFF
+ #if BITS_PER_LONG == 64
/* ======================512+64 bytes======================== */
- struct list_head list;
- /* 512-527 16 bytes next/prev ptrs for ccb lists */
- struct scsi_cmnd * pcmd;
- /* 528-535 8 bytes pointer of linux scsi command */
- struct AdapterControlBlock * acb;
- /* 536-543 8 bytes pointer of acb */
-
- uint16_t ccb_flags;
- /* 544-545 */
- #define CCB_FLAG_READ 0x0000
- #define CCB_FLAG_WRITE 0x0001
- #define CCB_FLAG_ERROR 0x0002
- #define CCB_FLAG_FLUSHCACHE 0x0004
- #define CCB_FLAG_MASTER_ABORTED 0x0008
- uint16_t startdone;
- /* 546-547 */
- #define ARCMSR_CCB_DONE 0x0000
- #define ARCMSR_CCB_START 0x55AA
- #define ARCMSR_CCB_ABORTED 0xAA55
- #define ARCMSR_CCB_ILLEGAL 0xFFFF
- uint32_t reserved2[7];
- /* 548-551 552-555 556-559 560-563 564-567 568-571 572-575 */
-#else
+ uint32_t reserved[6];
/*24 byte*/
+ #else
/* ======================512+32 bytes======================== */
- struct list_head list;
- /* 512-519 8 bytes next/prev ptrs for ccb lists */
- struct scsi_cmnd * pcmd;
- /* 520-523 4 bytes pointer of linux scsi command */
- struct AdapterControlBlock * acb;
- /* 524-527 4 bytes pointer of acb */
-
- uint16_t ccb_flags;
- /* 528-529 */
- #define CCB_FLAG_READ 0x0000
- #define CCB_FLAG_WRITE 0x0001
- #define CCB_FLAG_ERROR 0x0002
- #define CCB_FLAG_FLUSHCACHE 0x0004
- #define CCB_FLAG_MASTER_ABORTED 0x0008
- uint16_t startdone;
- /* 530-531 */
- #define ARCMSR_CCB_DONE 0x0000
- #define ARCMSR_CCB_START 0x55AA
- #define ARCMSR_CCB_ABORTED 0xAA55
- #define ARCMSR_CCB_ILLEGAL 0xFFFF
- uint32_t reserved2[3];
- /* 532-535 536-539 540-543 */
-#endif
- /* ========================================================== */
+ uint32_t reserved[2];
/*8 byte*/
+ #endif
+ /* ======================================================= */
+ struct ARCMSR_CDB arcmsr_cdb;
};
/*

****************************************************************************
***
diff -uprN -X Documentation/dontdiff drivers/scsi/arcmsr/arcmsr_hba.c
drivers/scsi/arcmsr.1.20.00.15-91209/arcmsr_hba.c
--- drivers/scsi/arcmsr/arcmsr_hba.c 2010-02-25 02:52:17.000000000 +0800
+++ drivers/scsi/arcmsr.1.20.00.15-91209/arcmsr_hba.c 2010-03-10
11:52:14.000000000 +0800
@@ -70,12 +70,13 @@
#include <scsi/scsi_transport.h>
#include <scsi/scsicam.h>
#include "arcmsr.h"
-
-MODULE_AUTHOR("Erich Chen <support@xxxxxxxxxxxx>");
-MODULE_DESCRIPTION("ARECA (ARC11xx/12xx/13xx/16xx) SATA/SAS RAID HOST
Adapter");
+MODULE_AUTHOR("Nick Cheng <support@xxxxxxxxxxxx>");
+MODULE_DESCRIPTION("ARECA (ARC11xx/12xx/16xx) SATA/SAS RAID Host Bus
Adapter");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_VERSION(ARCMSR_DRIVER_VERSION);
-
+static int sleeptime = 20;
+static int retrycount = 12;
+wait_queue_head_t wait_q;
static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb,
struct scsi_cmnd *cmd);
static int arcmsr_iop_confirm(struct AdapterControlBlock *acb);
@@ -95,14 +96,18 @@ static u32 arcmsr_disable_outbound_ints(
static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb);
static void arcmsr_flush_hba_cache(struct AdapterControlBlock *acb);
static void arcmsr_flush_hbb_cache(struct AdapterControlBlock *acb);
+static void arcmsr_request_device_map(unsigned long pacb);
+static void arcmsr_request_hba_device_map(struct AdapterControlBlock *acb);
+static void arcmsr_request_hbb_device_map(struct AdapterControlBlock *acb);
+static void arcmsr_message_isr_bh_fn(struct work_struct *work);
+static bool arcmsr_get_firmware_spec(struct AdapterControlBlock *acb);
+static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb);
+
static const char *arcmsr_info(struct Scsi_Host *);
static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb);
static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev,
- int queue_depth, int reason)
+ int
queue_depth)
{
- if (reason != SCSI_QDEPTH_DEFAULT)
- return -EOPNOTSUPP;
-
if (queue_depth > ARCMSR_MAX_CMD_PERLUN)
queue_depth = ARCMSR_MAX_CMD_PERLUN;
scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth);
@@ -111,18 +116,18 @@ static int arcmsr_adjust_disk_queue_dept

static struct scsi_host_template arcmsr_scsi_host_template = {
.module = THIS_MODULE,
- .name = "ARCMSR ARECA SATA/SAS RAID HOST Adapter"
-
ARCMSR_DRIVER_VERSION,
+ .name = "ARCMSR ARECA SATA/SAS RAID Host Bus
Adapter"
+ ARCMSR_DRIVER_VERSION,
.info = arcmsr_info,
.queuecommand = arcmsr_queue_command,
- .eh_abort_handler = arcmsr_abort,
+ .eh_abort_handler = arcmsr_abort,
.eh_bus_reset_handler = arcmsr_bus_reset,
.bios_param = arcmsr_bios_param,
.change_queue_depth = arcmsr_adjust_disk_queue_depth,
- .can_queue = ARCMSR_MAX_OUTSTANDING_CMD,
- .this_id = ARCMSR_SCSI_INITIATOR_ID,
- .sg_tablesize = ARCMSR_MAX_SG_ENTRIES,
- .max_sectors = ARCMSR_MAX_XFER_SECTORS,
+ .can_queue = ARCMSR_MAX_FREECCB_NUM,
+ .this_id = ARCMSR_SCSI_INITIATOR_ID,
+ .sg_tablesize = ARCMSR_DEFAULT_SG_ENTRIES,
+ .max_sectors = ARCMSR_MAX_XFER_SECTORS_C,
.cmd_per_lun = ARCMSR_MAX_CMD_PERLUN,
.use_clustering = ENABLE_CLUSTERING,
.shost_attrs = arcmsr_host_attrs,
@@ -156,12 +161,13 @@ static struct pci_device_id arcmsr_devic
{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1381)},
{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1680)},
{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1681)},
+ {PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1880)},
{0, 0}, /* Terminating entry */
};
MODULE_DEVICE_TABLE(pci, arcmsr_device_id_table);
static struct pci_driver arcmsr_pci_driver = {
.name = "arcmsr",
- .id_table = arcmsr_device_id_table,
+ .id_table = arcmsr_device_id_table,
.probe = arcmsr_probe,
.remove = arcmsr_remove,
.shutdown = arcmsr_shutdown,
@@ -170,15 +176,72 @@ static struct pci_driver arcmsr_pci_driv
#endif
};

+static void arcmsr_free_mu(struct AdapterControlBlock *acb)
+{
+ switch (acb->adapter_type) {
+ case ACB_ADAPTER_TYPE_A:
+ break;
+ case ACB_ADAPTER_TYPE_B:{
+ struct MessageUnit_B *reg = acb->pmuB;
+ dma_free_coherent(&acb->pdev->dev,
+ sizeof(struct MessageUnit_B),
+ reg, acb->dma_coherent_handle_hbb_mu);
+ }
+ }
+}
+
+static bool arcmsr_remap_pciregion(struct AdapterControlBlock *acb)
+{
+ struct pci_dev *pdev = acb->pdev;
+
+ switch (acb->adapter_type){
+ case ACB_ADAPTER_TYPE_A:{
+ acb->pmuA = ioremap(pci_resource_start(pdev,0),
pci_resource_len(pdev,0));
+ if (!acb->pmuA) {
+ printk(KERN_NOTICE "arcmsr%d: memory mapping
region fail \n", acb->host->host_no);
+ return false;
+ }
+ break;
+ }
+ case ACB_ADAPTER_TYPE_B:{
+ void __iomem *mem_base0, *mem_base1;
+ mem_base0 = ioremap(pci_resource_start(pdev, 0),
pci_resource_len(pdev, 0));
+ if (!mem_base0) {
+ printk(KERN_NOTICE "arcmsr%d: memory mapping
region fail \n", acb->host->host_no);
+ return false;
+ }
+ mem_base1 = ioremap(pci_resource_start(pdev, 2),
pci_resource_len(pdev, 2));
+ if (!mem_base1) {
+ iounmap(mem_base0);
+ printk(KERN_NOTICE "arcmsr%d: memory mapping
region fail \n", acb->host->host_no);
+ return false;
+ }
+ acb->mem_base0 = mem_base0;
+ acb->mem_base1 = mem_base1;
+ }
+ }
+ return true;
+}
+
+static void arcmsr_unmap_pciregion(struct AdapterControlBlock *acb)
+{
+ switch (acb->adapter_type) {
+ case ACB_ADAPTER_TYPE_A:{
+ iounmap(acb->pmuA);
+ }
+ case ACB_ADAPTER_TYPE_B:{
+ iounmap(acb->mem_base0);
+ iounmap(acb->mem_base1);
+ }
+ }
+}
+
static irqreturn_t arcmsr_do_interrupt(int irq, void *dev_id)
{
irqreturn_t handle_state;
struct AdapterControlBlock *acb = dev_id;

- spin_lock(acb->host->host_lock);
handle_state = arcmsr_interrupt(acb);
- spin_unlock(acb->host->host_lock);
-
return handle_state;
}

@@ -215,6 +278,7 @@ static void arcmsr_define_adapter_type(s
struct pci_dev *pdev = acb->pdev;
u16 dev_id;
pci_read_config_word(pdev, PCI_DEVICE_ID, &dev_id);
+ acb->dev_id = dev_id;
switch (dev_id) {
case 0x1201 : {
acb->adapter_type = ACB_ADAPTER_TYPE_B;
@@ -223,334 +287,460 @@ static void arcmsr_define_adapter_type(s

default : acb->adapter_type = ACB_ADAPTER_TYPE_A;
}
-}
+}

-static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb)
+static uint8_t arcmsr_hba_wait_msgint_ready(struct AdapterControlBlock
*acb)
{
+ struct MessageUnit_A __iomem *reg = acb->pmuA;
+ uint32_t Index;
+ uint8_t Retries = 0x00;

- switch (acb->adapter_type) {
+ do {
+ for (Index = 0; Index < 100; Index++) {
+ if (readl(&reg->outbound_intstatus) &
+ ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
+ writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT,
+ &reg->outbound_intstatus);
+ return 0x00;
+ }
+ msleep(10);
+ }/*max 1 seconds*/

- case ACB_ADAPTER_TYPE_A: {
- struct pci_dev *pdev = acb->pdev;
- void *dma_coherent;
- dma_addr_t dma_coherent_handle, dma_addr;
- struct CommandControlBlock *ccb_tmp;
- uint32_t intmask_org;
- int i, j;
+ } while (Retries++ < 20);/*max 20 sec*/
+ return 0xff;
+}

- acb->pmuA = pci_ioremap_bar(pdev, 0);
- if (!acb->pmuA) {
- printk(KERN_NOTICE "arcmsr%d: memory mapping region
fail \n",
- acb->host->host_no);
- return -ENOMEM;
- }
+static uint8_t arcmsr_hbb_wait_msgint_ready(struct AdapterControlBlock
*acb)
+{
+ struct MessageUnit_B *reg = acb->pmuB;
+ uint32_t Index;
+ uint8_t Retries = 0x00;

- dma_coherent = dma_alloc_coherent(&pdev->dev,
- ARCMSR_MAX_FREECCB_NUM *
- sizeof (struct CommandControlBlock) + 0x20,
- &dma_coherent_handle, GFP_KERNEL);
+ do {
+ for (Index = 0; Index < 100; Index++) {
+ if (readl(reg->iop2drv_doorbell)
+ & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
+ writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN
+ , reg->iop2drv_doorbell);
+ writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT,
reg->drv2iop_doorbell);
+ return 0x00;
+ }
+ msleep(10);
+ }/*max 1 seconds*/

- if (!dma_coherent) {
- iounmap(acb->pmuA);
- return -ENOMEM;
- }
+ } while (Retries++ < 20);/*max 20 sec*/
+ return 0xff;
+}

- acb->dma_coherent = dma_coherent;
- acb->dma_coherent_handle = dma_coherent_handle;
+static void arcmsr_flush_hba_cache(struct AdapterControlBlock *acb)
+{
+ struct MessageUnit_A __iomem *reg = acb->pmuA;
+ int retry_count = 30;

- if (((unsigned long)dma_coherent & 0x1F)) {
- dma_coherent = dma_coherent +
- (0x20 - ((unsigned long)dma_coherent &
0x1F));
- dma_coherent_handle = dma_coherent_handle +
- (0x20 - ((unsigned long)dma_coherent_handle
& 0x1F));
+ writel(ARCMSR_INBOUND_MESG0_FLUSH_CACHE, &reg->inbound_msgaddr0);
+ do {
+ if (!arcmsr_hba_wait_msgint_ready(acb))
+ break;
+ else {
+ retry_count--;
+ printk(KERN_NOTICE "arcmsr%d: wait 'flush adapter
cache' \
+ timeout, retry count down = %d \n",
acb->host->host_no, retry_count);
}
+ } while (retry_count != 0);
+}

- dma_addr = dma_coherent_handle;
- ccb_tmp = (struct CommandControlBlock *)dma_coherent;
- for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
- ccb_tmp->cdb_shifted_phyaddr = dma_addr >> 5;
- ccb_tmp->acb = acb;
- acb->pccb_pool[i] = ccb_tmp;
- list_add_tail(&ccb_tmp->list, &acb->ccb_free_list);
- dma_addr = dma_addr + sizeof(struct
CommandControlBlock);
- ccb_tmp++;
+static void arcmsr_flush_hbb_cache(struct AdapterControlBlock *acb)
+{
+ struct MessageUnit_B *reg = acb->pmuB;
+ int retry_count = 30;
+
+ writel(ARCMSR_MESSAGE_FLUSH_CACHE, reg->drv2iop_doorbell);
+ do {
+ if (!arcmsr_hbb_wait_msgint_ready(acb))
+ break;
+ else {
+ retry_count--;
+ printk(KERN_NOTICE "arcmsr%d: wait 'flush adapter
cache' \
+ timeout,retry count down = %d \n",
acb->host->host_no, retry_count);
}
+ } while (retry_count != 0);
+}

- acb->vir2phy_offset = (unsigned long)ccb_tmp -(unsigned
long)dma_addr;
- for (i = 0; i < ARCMSR_MAX_TARGETID; i++)
- for (j = 0; j < ARCMSR_MAX_TARGETLUN; j++)
- acb->devstate[i][j] = ARECA_RAID_GONE;
+static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb)
+{
+ switch (acb->adapter_type) {

- /*
- ** here we need to tell iop 331 our ccb_tmp.HighPart
- ** if ccb_tmp.HighPart is not zero
- */
- intmask_org = arcmsr_disable_outbound_ints(acb);
+ case ACB_ADAPTER_TYPE_A: {
+ arcmsr_flush_hba_cache(acb);
}
break;

case ACB_ADAPTER_TYPE_B: {
+ arcmsr_flush_hbb_cache(acb);
+ }
+ }
+}

- struct pci_dev *pdev = acb->pdev;
- struct MessageUnit_B *reg;
- void __iomem *mem_base0, *mem_base1;
- void *dma_coherent;
- dma_addr_t dma_coherent_handle, dma_addr;
- uint32_t intmask_org;
- struct CommandControlBlock *ccb_tmp;
- int i, j;
+static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb)
+{
+ struct pci_dev *pdev = acb->pdev;
+ switch (acb->adapter_type) {
+ case ACB_ADAPTER_TYPE_A: {

- dma_coherent = dma_alloc_coherent(&pdev->dev,
- ((ARCMSR_MAX_FREECCB_NUM *
- sizeof(struct CommandControlBlock) + 0x20) +
- sizeof(struct MessageUnit_B)),
- &dma_coherent_handle, GFP_KERNEL);
- if (!dma_coherent)
- return -ENOMEM;
-
- acb->dma_coherent = dma_coherent;
- acb->dma_coherent_handle = dma_coherent_handle;
-
- if (((unsigned long)dma_coherent & 0x1F)) {
- dma_coherent = dma_coherent +
- (0x20 - ((unsigned long)dma_coherent &
0x1F));
- dma_coherent_handle = dma_coherent_handle +
- (0x20 - ((unsigned long)dma_coherent_handle
& 0x1F));
+ void *dma_coherent;
+ dma_addr_t dma_coherent_handle;
+ struct CommandControlBlock *ccb_tmp;
+ int i = 0, j = 0;
+ dma_addr_t cdb_phyaddr;
+ unsigned long roundup_ccbsize = 0;
+ unsigned long max_xfer_len;
+ unsigned long max_sg_entrys;
+ uint32_t firm_config_version;
+
+ for (i = 0; i < ARCMSR_MAX_TARGETID; i++)
+ for (j = 0; j < ARCMSR_MAX_TARGETLUN; j++)
+ acb->devstate[i][j] =
ARECA_RAID_GONE;
+
+ max_xfer_len = ARCMSR_MAX_XFER_LEN;
+ max_sg_entrys = ARCMSR_DEFAULT_SG_ENTRIES;
+ firm_config_version = acb->firm_cfg_version;
+ if((firm_config_version & 0xFF) >= 3){
+ max_xfer_len = (ARCMSR_CDB_SG_PAGE_LENGTH <<
((firm_config_version >> 8) & 0xFF)) * 1024;/* max 16M byte */
+ max_sg_entrys = (max_xfer_len/4096);
+ }
+ acb->host->max_sectors = max_xfer_len/512;
+ acb->host->sg_tablesize = max_sg_entrys;
+ roundup_ccbsize = roundup(sizeof(struct
CommandControlBlock) + max_sg_entrys * sizeof(struct SG64ENTRY), 32);
+ acb->uncache_size = roundup_ccbsize *
ARCMSR_MAX_FREECCB_NUM;
+ dma_coherent = dma_alloc_coherent(&pdev->dev,
acb->uncache_size, &dma_coherent_handle, GFP_KERNEL);
+ if (!dma_coherent) {
+ printk("arcmsr%d: dma_alloc_coherent got
error \n", acb->host->host_no);
+ return -ENOMEM;
+ }
+ memset(dma_coherent, 0, acb->uncache_size);
+ acb->dma_coherent = dma_coherent;
+ acb->dma_coherent_handle = dma_coherent_handle;
+ ccb_tmp = (struct CommandControlBlock
*)dma_coherent;
+ acb->vir2phy_offset = (unsigned long)dma_coherent -
(unsigned long)dma_coherent_handle;
+ for(i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++){
+ cdb_phyaddr = dma_coherent_handle +
offsetof(struct CommandControlBlock, arcmsr_cdb);
+ ccb_tmp->shifted_cdb_phyaddr = cdb_phyaddr
>> 5;
+ acb->pccb_pool[i] = ccb_tmp;
+ ccb_tmp->acb = acb;
+ INIT_LIST_HEAD(&ccb_tmp->list);
+ list_add_tail(&ccb_tmp->list,
&acb->ccb_free_list);
+ ccb_tmp = (struct CommandControlBlock
*)((unsigned long)ccb_tmp + roundup_ccbsize);
+ dma_coherent_handle = dma_coherent_handle +
roundup_ccbsize;
+ }
+ break;
}
+ case ACB_ADAPTER_TYPE_B: {

- dma_addr = dma_coherent_handle;
- ccb_tmp = (struct CommandControlBlock *)dma_coherent;
- for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
- ccb_tmp->cdb_shifted_phyaddr = dma_addr >> 5;
- ccb_tmp->acb = acb;
- acb->pccb_pool[i] = ccb_tmp;
- list_add_tail(&ccb_tmp->list, &acb->ccb_free_list);
- dma_addr = dma_addr + sizeof(struct
CommandControlBlock);
- ccb_tmp++;
- }
-
- reg = (struct MessageUnit_B *)(dma_coherent +
- ARCMSR_MAX_FREECCB_NUM * sizeof(struct
CommandControlBlock));
- acb->pmuB = reg;
- mem_base0 = pci_ioremap_bar(pdev, 0);
- if (!mem_base0)
- goto out;
-
- mem_base1 = pci_ioremap_bar(pdev, 2);
- if (!mem_base1) {
- iounmap(mem_base0);
- goto out;
- }
-
- reg->drv2iop_doorbell_reg = mem_base0 +
ARCMSR_DRV2IOP_DOORBELL;
- reg->drv2iop_doorbell_mask_reg = mem_base0 +
-
ARCMSR_DRV2IOP_DOORBELL_MASK;
- reg->iop2drv_doorbell_reg = mem_base0 +
ARCMSR_IOP2DRV_DOORBELL;
- reg->iop2drv_doorbell_mask_reg = mem_base0 +
-
ARCMSR_IOP2DRV_DOORBELL_MASK;
- reg->ioctl_wbuffer_reg = mem_base1 + ARCMSR_IOCTL_WBUFFER;
- reg->ioctl_rbuffer_reg = mem_base1 + ARCMSR_IOCTL_RBUFFER;
- reg->msgcode_rwbuffer_reg = mem_base1 +
ARCMSR_MSGCODE_RWBUFFER;
-
- acb->vir2phy_offset = (unsigned long)ccb_tmp -(unsigned
long)dma_addr;
- for (i = 0; i < ARCMSR_MAX_TARGETID; i++)
- for (j = 0; j < ARCMSR_MAX_TARGETLUN; j++)
- acb->devstate[i][j] = ARECA_RAID_GOOD;
-
- /*
- ** here we need to tell iop 331 our ccb_tmp.HighPart
- ** if ccb_tmp.HighPart is not zero
- */
- intmask_org = arcmsr_disable_outbound_ints(acb);
+ void *dma_coherent;
+ dma_addr_t dma_coherent_handle;
+ struct CommandControlBlock *ccb_tmp;
+ uint32_t cdb_phyaddr;
+ unsigned int roundup_ccbsize = 0;
+ unsigned long max_xfer_len;
+ unsigned long max_sg_entrys;
+ unsigned long firm_config_version;
+ unsigned long max_freeccb_num=0;
+ int i = 0, j = 0;
+
+ max_freeccb_num = ARCMSR_MAX_FREECCB_NUM;
+ max_xfer_len = ARCMSR_MAX_XFER_LEN;
+ max_sg_entrys = ARCMSR_DEFAULT_SG_ENTRIES;
+ firm_config_version = acb->firm_cfg_version;
+ if((firm_config_version & 0xFF) >= 3){
+ max_xfer_len = (ARCMSR_CDB_SG_PAGE_LENGTH <<

+ ((firm_config_version >> 8)
& 0xFF)) * 1024;/* max 16M byte */
+ max_sg_entrys = (max_xfer_len/4096);/* max
4097 sg entry*/
+ }
+ acb->host->max_sectors = max_xfer_len / 512;
+ acb->host->sg_tablesize = max_sg_entrys;
+ roundup_ccbsize = roundup(sizeof(struct
CommandControlBlock)+
+ (max_sg_entrys - 1) * sizeof(struct
SG64ENTRY), 32);
+ acb->uncache_size = roundup_ccbsize *
ARCMSR_MAX_FREECCB_NUM;
+ dma_coherent =
dma_alloc_coherent(&pdev->dev,acb->uncache_size,
+ &dma_coherent_handle, GFP_KERNEL);
+
+ if (!dma_coherent) {
+ printk(KERN_NOTICE "DMA allocation
failed...........................\n");
+ return -ENOMEM;
+ }
+ memset(dma_coherent, 0, acb->uncache_size);
+ acb->dma_coherent = dma_coherent;
+ acb->dma_coherent_handle = dma_coherent_handle;
+ ccb_tmp = (struct CommandControlBlock
*)dma_coherent;
+ acb->vir2phy_offset = (unsigned long)dma_coherent -
+ (unsigned long)dma_coherent_handle;
+ for(i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++){
+ cdb_phyaddr = dma_coherent_handle +
+ offsetof(struct CommandControlBlock,
arcmsr_cdb);
+ ccb_tmp->shifted_cdb_phyaddr = cdb_phyaddr
>> 5;
+ acb->pccb_pool[i] = ccb_tmp;
+ ccb_tmp->acb = acb;
+ INIT_LIST_HEAD(&ccb_tmp->list);
+ list_add_tail(&ccb_tmp->list,
&acb->ccb_free_list);
+ ccb_tmp = (struct CommandControlBlock
*)((unsigned long)ccb_tmp +
+
roundup_ccbsize);
+ dma_coherent_handle = dma_coherent_handle +
roundup_ccbsize;
+ }
+ for (i = 0; i < ARCMSR_MAX_TARGETID; i++)
+ for (j = 0; j < ARCMSR_MAX_TARGETLUN; j++)
+ acb->devstate[i][j] =
ARECA_RAID_GONE;
}
break;
}
return 0;
+}
+static void arcmsr_message_isr_bh_fn(struct work_struct *work)
+{
+ struct AdapterControlBlock *acb = container_of(work,struct
AdapterControlBlock, arcmsr_do_message_isr_bh);
+ switch (acb->adapter_type) {
+ case ACB_ADAPTER_TYPE_A: {
+
+ struct MessageUnit_A __iomem *reg = acb->pmuA;
+ char *acb_dev_map = (char *)acb->device_map;
+ uint32_t __iomem *signature = (uint32_t __iomem*)
(&reg->message_rwbuffer[0]);
+ char __iomem *devicemap = (char __iomem*)
(&reg->message_rwbuffer[21]);
+ int target, lun;
+ struct scsi_device *psdev;
+ char diff;
+
+ atomic_inc(&acb->rq_map_token);
+ if (readl(signature) == ARCMSR_SIGNATURE_GET_CONFIG)
{
+ for(target = 0; target < ARCMSR_MAX_TARGETID
-1; target++) {
+ diff =
(*acb_dev_map)^readb(devicemap);
+ if (diff != 0) {
+ char temp;
+ *acb_dev_map =
readb(devicemap);
+ temp =*acb_dev_map;
+ for(lun = 0; lun <
ARCMSR_MAX_TARGETLUN; lun++) {
+ if((temp & 0x01)==1
&& (diff & 0x01) == 1) {
+
scsi_add_device(acb->host, 0, target, lun);
+ }else if((temp &
0x01) == 0 && (diff & 0x01) == 1) {
+ psdev =
scsi_device_lookup(acb->host, 0, target, lun);
+ if (psdev !=
NULL ) {
+
scsi_remove_device(psdev);
+
scsi_device_put(psdev);
+ }
+ }
+ temp >>= 1;
+ diff >>= 1;
+ }
+ }
+ devicemap++;
+ acb_dev_map++;
+ }
+ }
+ break;
+ }

-out:
- dma_free_coherent(&acb->pdev->dev,
- (ARCMSR_MAX_FREECCB_NUM * sizeof(struct CommandControlBlock)
+ 0x20 +
- sizeof(struct MessageUnit_B)), acb->dma_coherent,
acb->dma_coherent_handle);
- return -ENOMEM;
+ case ACB_ADAPTER_TYPE_B: {
+ struct MessageUnit_B *reg = acb->pmuB;
+ char *acb_dev_map = (char *)acb->device_map;
+ uint32_t __iomem *signature = (uint32_t
__iomem*)(&reg->message_rwbuffer[0]);
+ char __iomem *devicemap = (char
__iomem*)(&reg->message_rwbuffer[21]);
+ int target, lun;
+ struct scsi_device *psdev;
+ char diff;
+
+ atomic_inc(&acb->rq_map_token);
+ if (readl(signature) == ARCMSR_SIGNATURE_GET_CONFIG)
{
+ for(target = 0; target < ARCMSR_MAX_TARGETID
-1; target++) {
+ diff =
(*acb_dev_map)^readb(devicemap);
+ if (diff != 0) {
+ char temp;
+ *acb_dev_map =
readb(devicemap);
+ temp =*acb_dev_map;
+ for(lun = 0; lun <
ARCMSR_MAX_TARGETLUN; lun++) {
+ if((temp & 0x01)==1
&& (diff & 0x01) == 1) {
+
scsi_add_device(acb->host, 0, target, lun);
+ }else if((temp &
0x01) == 0 && (diff & 0x01) == 1) {
+ psdev =
scsi_device_lookup(acb->host, 0, target, lun);
+ if (psdev !=
NULL ) {
+
scsi_remove_device(psdev);
+
scsi_device_put(psdev);
+ }
+ }
+ temp >>= 1;
+ diff >>= 1;
+ }
+ }
+ devicemap++;
+ acb_dev_map++;
+ }
+ }
+ }
+ }
}

-static int arcmsr_probe(struct pci_dev *pdev,
- const struct pci_device_id *id)
+static int arcmsr_probe(struct pci_dev *pdev, const struct pci_device_id
*id)
{
struct Scsi_Host *host;
struct AdapterControlBlock *acb;
- uint8_t bus, dev_fun;
+ uint8_t bus,dev_fun;
int error;

error = pci_enable_device(pdev);
- if (error)
- goto out;
- pci_set_master(pdev);
-
- host = scsi_host_alloc(&arcmsr_scsi_host_template,
- sizeof(struct AdapterControlBlock));
- if (!host) {
- error = -ENOMEM;
- goto out_disable_device;
- }
- acb = (struct AdapterControlBlock *)host->hostdata;
- memset(acb, 0, sizeof (struct AdapterControlBlock));
-
- error = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
- if (error) {
- error = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
- if (error) {
+ if(error){
+ return -ENODEV;
+ }
+ host = scsi_host_alloc(&arcmsr_scsi_host_template, sizeof(struct
AdapterControlBlock));
+ if(!host){
+ goto pci_disable_dev;
+ }
+ error = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
+ if(error){
+ error = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+ if(error){
printk(KERN_WARNING
"scsi%d: No suitable DMA mask available\n",
host->host_no);
- goto out_host_put;
+ goto scsi_host_release;
}
}
+ init_waitqueue_head(&wait_q);
bus = pdev->bus->number;
dev_fun = pdev->devfn;
- acb->host = host;
+ acb = (struct AdapterControlBlock *) host->hostdata;
+ memset(acb,0,sizeof(struct AdapterControlBlock));
acb->pdev = pdev;
- host->max_sectors = ARCMSR_MAX_XFER_SECTORS;
+ acb->host = host;
host->max_lun = ARCMSR_MAX_TARGETLUN;
- host->max_id = ARCMSR_MAX_TARGETID;/*16:8*/
- host->max_cmd_len = 16; /*this is issue of 64bit LBA, over 2T
byte*/
- host->sg_tablesize = ARCMSR_MAX_SG_ENTRIES;
- host->can_queue = ARCMSR_MAX_FREECCB_NUM; /* max simultaneous cmds
*/
- host->cmd_per_lun = ARCMSR_MAX_CMD_PERLUN;
+ host->max_id = ARCMSR_MAX_TARGETID; /*16:8*/
+ host->max_cmd_len = 16; /*this is issue of
64bit LBA ,over 2T byte*/
+ host->can_queue = ARCMSR_MAX_FREECCB_NUM; /* max simultaneous
cmds */
+ host->cmd_per_lun = ARCMSR_MAX_CMD_PERLUN;
host->this_id = ARCMSR_SCSI_INITIATOR_ID;
host->unique_id = (bus << 8) | dev_fun;
- host->irq = pdev->irq;
+ pci_set_drvdata(pdev, host);
+ pci_set_master(pdev);
error = pci_request_regions(pdev, "arcmsr");
- if (error) {
- goto out_host_put;
+ if(error){
+ goto scsi_host_release;
}
- arcmsr_define_adapter_type(acb);
-
+ spin_lock_init(&acb->eh_lock);
+ spin_lock_init(&acb->ccblist_lock);
acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED |
- ACB_F_MESSAGE_RQBUFFER_CLEARED |
- ACB_F_MESSAGE_WQBUFFER_READED);
+ ACB_F_MESSAGE_RQBUFFER_CLEARED |
+ ACB_F_MESSAGE_WQBUFFER_READED);
acb->acb_flags &= ~ACB_F_SCSISTOPADAPTER;
INIT_LIST_HEAD(&acb->ccb_free_list);
-
+ arcmsr_define_adapter_type(acb);
+ error = arcmsr_remap_pciregion(acb);
+ if(!error){
+ goto pci_release_regs;
+ }
+ error = arcmsr_get_firmware_spec(acb);
+ if(!error){
+ goto unmap_pci_region;
+ }
error = arcmsr_alloc_ccb_pool(acb);
- if (error)
- goto out_release_regions;
-
- error = request_irq(pdev->irq, arcmsr_do_interrupt,
- IRQF_SHARED, "arcmsr", acb);
- if (error)
- goto out_free_ccb_pool;
-
+ if(error){
+ goto free_hbb_mu;
+ }
arcmsr_iop_init(acb);
- pci_set_drvdata(pdev, host);
- if (strncmp(acb->firm_version, "V1.42", 5) >= 0)
- host->max_sectors= ARCMSR_MAX_XFER_SECTORS_B;
-
error = scsi_add_host(host, &pdev->dev);
- if (error)
- goto out_free_irq;
-
- error = arcmsr_alloc_sysfs_attr(acb);
- if (error)
- goto out_free_sysfs;
-
- scsi_scan_host(host);
+ if(error){
+ goto RAID_controller_stop;
+ }
+ error = request_irq(pdev->irq, arcmsr_do_interrupt, IRQF_SHARED,
"arcmsr", acb);
+ if(error){
+ goto scsi_host_remove;
+ }
+ host->irq = pdev->irq;
+ scsi_scan_host(host);
+ INIT_WORK (&acb->arcmsr_do_message_isr_bh,
arcmsr_message_isr_bh_fn);
+ atomic_set(&acb->rq_map_token, 16);
+ atomic_set(&acb->ante_token_value, 16);
+ acb->fw_flag = FW_NORMAL;
+ init_timer(&acb->eternal_timer);
+ acb->eternal_timer.expires = jiffies + msecs_to_jiffies(6 * HZ);
+ acb->eternal_timer.data = (unsigned long) acb;
+ acb->eternal_timer.function = &arcmsr_request_device_map;
+ add_timer(&acb->eternal_timer);
#ifdef CONFIG_SCSI_ARCMSR_AER
- pci_enable_pcie_error_reporting(pdev);
+ pci_enable_pcie_error_reporting(pdev);
#endif
+ if(arcmsr_alloc_sysfs_attr(acb))
+ goto out_free_sysfs;
return 0;
- out_free_sysfs:
- out_free_irq:
- free_irq(pdev->irq, acb);
- out_free_ccb_pool:
- arcmsr_free_ccb_pool(acb);
- out_release_regions:
- pci_release_regions(pdev);
- out_host_put:
- scsi_host_put(host);
- out_disable_device:
- pci_disable_device(pdev);
- out:
- return error;
-}
-
-static uint8_t arcmsr_hba_wait_msgint_ready(struct AdapterControlBlock
*acb)
-{
- struct MessageUnit_A __iomem *reg = acb->pmuA;
- uint32_t Index;
- uint8_t Retries = 0x00;
-
- do {
- for (Index = 0; Index < 100; Index++) {
- if (readl(&reg->outbound_intstatus) &
- ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
- writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT,
- &reg->outbound_intstatus);
- return 0x00;
- }
- msleep(10);
- }/*max 1 seconds*/
-
- } while (Retries++ < 20);/*max 20 sec*/
- return 0xff;
-}
-
-static uint8_t arcmsr_hbb_wait_msgint_ready(struct AdapterControlBlock
*acb)
-{
- struct MessageUnit_B *reg = acb->pmuB;
- uint32_t Index;
- uint8_t Retries = 0x00;
-
- do {
- for (Index = 0; Index < 100; Index++) {
- if (readl(reg->iop2drv_doorbell_reg)
- & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
- writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN
- , reg->iop2drv_doorbell_reg);
- writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT,
reg->drv2iop_doorbell_reg);
- return 0x00;
- }
- msleep(10);
- }/*max 1 seconds*/
-
- } while (Retries++ < 20);/*max 20 sec*/
- return 0xff;
+ out_free_sysfs:
+ scsi_host_remove:
+ scsi_remove_host(host);
+ RAID_controller_stop:
+ arcmsr_stop_adapter_bgrb(acb);
+ arcmsr_flush_adapter_cache(acb);
+ arcmsr_free_ccb_pool(acb);
+ free_hbb_mu:
+ arcmsr_free_mu(acb);
+ unmap_pci_region:
+ arcmsr_unmap_pciregion(acb);
+ pci_release_regs:
+ pci_release_regions(pdev);
+ scsi_host_release:
+ scsi_host_put(host);
+ pci_disable_dev:
+ pci_disable_device(pdev);
+ return -ENODEV;
}

-static void arcmsr_abort_hba_allcmd(struct AdapterControlBlock *acb)
+static uint8_t arcmsr_abort_hba_allcmd(struct AdapterControlBlock *acb)
{
struct MessageUnit_A __iomem *reg = acb->pmuA;

writel(ARCMSR_INBOUND_MESG0_ABORT_CMD, &reg->inbound_msgaddr0);
- if (arcmsr_hba_wait_msgint_ready(acb))
+ if (arcmsr_hba_wait_msgint_ready(acb)){
printk(KERN_NOTICE
"arcmsr%d: wait 'abort all outstanding command'
timeout \n"
, acb->host->host_no);
+ return 0xff;
+ }
+ return 0x00;
}

-static void arcmsr_abort_hbb_allcmd(struct AdapterControlBlock *acb)
+static uint8_t arcmsr_abort_hbb_allcmd(struct AdapterControlBlock *acb)
{
struct MessageUnit_B *reg = acb->pmuB;

- writel(ARCMSR_MESSAGE_ABORT_CMD, reg->drv2iop_doorbell_reg);
- if (arcmsr_hbb_wait_msgint_ready(acb))
+ writel(ARCMSR_MESSAGE_ABORT_CMD, reg->drv2iop_doorbell);
+ if (arcmsr_hbb_wait_msgint_ready(acb)) {
printk(KERN_NOTICE
"arcmsr%d: wait 'abort all outstanding command'
timeout \n"
, acb->host->host_no);
+ return 0xff;
+ }
+ return 0x00;
}

-static void arcmsr_abort_allcmd(struct AdapterControlBlock *acb)
+static uint8_t arcmsr_abort_allcmd(struct AdapterControlBlock *acb)
{
+ uint8_t rtnval = 0;
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A: {
- arcmsr_abort_hba_allcmd(acb);
+ rtnval = arcmsr_abort_hba_allcmd(acb);
}
break;

case ACB_ADAPTER_TYPE_B: {
- arcmsr_abort_hbb_allcmd(acb);
+ rtnval = arcmsr_abort_hbb_allcmd(acb);
}
}
+ return rtnval;
+}
+
+static bool arcmsr_hbb_enable_driver_mode(struct AdapterControlBlock *pacb)
+{
+ struct MessageUnit_B *reg = pacb->pmuB;
+
+ writel(ARCMSR_MESSAGE_START_DRIVER_MODE, reg->drv2iop_doorbell);
+ if(arcmsr_hbb_wait_msgint_ready(pacb)){
+ printk(KERN_ERR "arcmsr%d: can't set driver mode. \n",
pacb->host->host_no);
+ return false;
+ }
+ return true;
}

static void arcmsr_pci_unmap_dma(struct CommandControlBlock *ccb)
@@ -560,69 +750,22 @@ static void arcmsr_pci_unmap_dma(struct
scsi_dma_unmap(pcmd);
}

-static void arcmsr_ccb_complete(struct CommandControlBlock *ccb, int
stand_flag)
+static void arcmsr_ccb_complete(struct CommandControlBlock *ccb)
{
struct AdapterControlBlock *acb = ccb->acb;
struct scsi_cmnd *pcmd = ccb->pcmd;
+ unsigned long flags;

+ atomic_dec(&acb->ccboutstandingcount);
arcmsr_pci_unmap_dma(ccb);
- if (stand_flag == 1)
- atomic_dec(&acb->ccboutstandingcount);
ccb->startdone = ARCMSR_CCB_DONE;
ccb->ccb_flags = 0;
+ spin_lock_irqsave(&acb->ccblist_lock, flags);
list_add_tail(&ccb->list, &acb->ccb_free_list);
+ spin_unlock_irqrestore(&acb->ccblist_lock, flags);
pcmd->scsi_done(pcmd);
}

-static void arcmsr_flush_hba_cache(struct AdapterControlBlock *acb)
-{
- struct MessageUnit_A __iomem *reg = acb->pmuA;
- int retry_count = 30;
-
- writel(ARCMSR_INBOUND_MESG0_FLUSH_CACHE, &reg->inbound_msgaddr0);
- do {
- if (!arcmsr_hba_wait_msgint_ready(acb))
- break;
- else {
- retry_count--;
- printk(KERN_NOTICE "arcmsr%d: wait 'flush adapter
cache' \
- timeout, retry count down = %d \n",
acb->host->host_no, retry_count);
- }
- } while (retry_count != 0);
-}
-
-static void arcmsr_flush_hbb_cache(struct AdapterControlBlock *acb)
-{
- struct MessageUnit_B *reg = acb->pmuB;
- int retry_count = 30;
-
- writel(ARCMSR_MESSAGE_FLUSH_CACHE, reg->drv2iop_doorbell_reg);
- do {
- if (!arcmsr_hbb_wait_msgint_ready(acb))
- break;
- else {
- retry_count--;
- printk(KERN_NOTICE "arcmsr%d: wait 'flush adapter
cache' \
- timeout,retry count down = %d \n",
acb->host->host_no, retry_count);
- }
- } while (retry_count != 0);
-}
-
-static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb)
-{
- switch (acb->adapter_type) {
-
- case ACB_ADAPTER_TYPE_A: {
- arcmsr_flush_hba_cache(acb);
- }
- break;
-
- case ACB_ADAPTER_TYPE_B: {
- arcmsr_flush_hbb_cache(acb);
- }
- }
-}
-
static void arcmsr_report_sense_info(struct CommandControlBlock *ccb)
{

@@ -648,8 +791,7 @@ static u32 arcmsr_disable_outbound_ints(

case ACB_ADAPTER_TYPE_A : {
struct MessageUnit_A __iomem *reg = acb->pmuA;
- orig_mask = readl(&reg->outbound_intmask)|\
- ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE;
+ orig_mask = readl(&reg->outbound_intmask);
writel(orig_mask|ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE, \
&reg->outbound_intmask);
}
@@ -657,16 +799,15 @@ static u32 arcmsr_disable_outbound_ints(

case ACB_ADAPTER_TYPE_B : {
struct MessageUnit_B *reg = acb->pmuB;
- orig_mask = readl(reg->iop2drv_doorbell_mask_reg) & \
- (~ARCMSR_IOP2DRV_MESSAGE_CMD_DONE);
- writel(0, reg->iop2drv_doorbell_mask_reg);
+ orig_mask = readl(reg->iop2drv_doorbell_mask);
+ writel(0, reg->iop2drv_doorbell_mask);
}
break;
}
return orig_mask;
}

-static void arcmsr_report_ccb_state(struct AdapterControlBlock *acb, \
+static void arcmsr_report_ccb_state(struct AdapterControlBlock *acb,
struct CommandControlBlock *ccb, uint32_t flag_ccb)
{

@@ -677,13 +818,13 @@ static void arcmsr_report_ccb_state(stru
if (acb->devstate[id][lun] == ARECA_RAID_GONE)
acb->devstate[id][lun] = ARECA_RAID_GOOD;
ccb->pcmd->result = DID_OK << 16;
- arcmsr_ccb_complete(ccb, 1);
+ arcmsr_ccb_complete(ccb);
} else {
switch (ccb->arcmsr_cdb.DeviceStatus) {
case ARCMSR_DEV_SELECT_TIMEOUT: {
acb->devstate[id][lun] = ARECA_RAID_GONE;
ccb->pcmd->result = DID_NO_CONNECT << 16;
- arcmsr_ccb_complete(ccb, 1);
+ arcmsr_ccb_complete(ccb);
}
break;

@@ -692,14 +833,14 @@ static void arcmsr_report_ccb_state(stru
case ARCMSR_DEV_INIT_FAIL: {
acb->devstate[id][lun] = ARECA_RAID_GONE;
ccb->pcmd->result = DID_BAD_TARGET << 16;
- arcmsr_ccb_complete(ccb, 1);
+ arcmsr_ccb_complete(ccb);
}
break;

case ARCMSR_DEV_CHECK_CONDITION: {
acb->devstate[id][lun] = ARECA_RAID_GOOD;
arcmsr_report_sense_info(ccb);
- arcmsr_ccb_complete(ccb, 1);
+ arcmsr_ccb_complete(ccb);
}
break;

@@ -714,7 +855,7 @@ static void arcmsr_report_ccb_state(stru
, ccb->arcmsr_cdb.DeviceStatus);
acb->devstate[id][lun] =
ARECA_RAID_GONE;
ccb->pcmd->result = DID_NO_CONNECT
<< 16;
- arcmsr_ccb_complete(ccb, 1);
+ arcmsr_ccb_complete(ccb);
break;
}
}
@@ -724,14 +865,19 @@ static void arcmsr_drain_donequeue(struc

{
struct CommandControlBlock *ccb;
+ struct ARCMSR_CDB *arcmsr_cdb;
+ int id, lun;

- ccb = (struct CommandControlBlock *)(acb->vir2phy_offset + (flag_ccb
<< 5));
+ arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset + (flag_ccb
<< 5));
+ ccb = container_of(arcmsr_cdb, struct CommandControlBlock,
arcmsr_cdb);
if ((ccb->acb != acb) || (ccb->startdone != ARCMSR_CCB_START)) {
if (ccb->startdone == ARCMSR_CCB_ABORTED) {
struct scsi_cmnd *abortcmd = ccb->pcmd;
if (abortcmd) {
+ id = abortcmd->device->id;
+ lun = abortcmd->device->lun;

abortcmd->result |= DID_ABORT << 16;
- arcmsr_ccb_complete(ccb, 1);
+ arcmsr_ccb_complete(ccb);
printk(KERN_NOTICE "arcmsr%d: ccb ='0x%p' \
isr got aborted command \n",
acb->host->host_no, ccb);
}
@@ -794,16 +940,18 @@ static void arcmsr_remove(struct pci_dev
struct AdapterControlBlock *acb =
(struct AdapterControlBlock *) host->hostdata;
int poll_count = 0;
-
arcmsr_free_sysfs_attr(acb);
scsi_remove_host(host);
- arcmsr_stop_adapter_bgrb(acb);
- arcmsr_flush_adapter_cache(acb);
+ scsi_host_put(host);
+ flush_scheduled_work();
+ del_timer_sync(&acb->eternal_timer);
arcmsr_disable_outbound_ints(acb);
+ arcmsr_stop_adapter_bgrb(acb);
+ arcmsr_flush_adapter_cache(acb);
acb->acb_flags |= ACB_F_SCSISTOPADAPTER;
acb->acb_flags &= ~ACB_F_IOP_INITED;

- for (poll_count = 0; poll_count < ARCMSR_MAX_OUTSTANDING_CMD;
poll_count++) {
+ for (poll_count = 0; poll_count < ARCMSR_MAX_OUTSTANDING_CMD;
poll_count++){
if (!atomic_read(&acb->ccboutstandingcount))
break;
arcmsr_interrupt(acb);/* FIXME: need spinlock */
@@ -820,17 +968,14 @@ static void arcmsr_remove(struct pci_dev
if (ccb->startdone == ARCMSR_CCB_START) {
ccb->startdone = ARCMSR_CCB_ABORTED;
ccb->pcmd->result = DID_ABORT << 16;
- arcmsr_ccb_complete(ccb, 1);
+ arcmsr_ccb_complete(ccb);
}
}
}
-
free_irq(pdev->irq, acb);
arcmsr_free_ccb_pool(acb);
+ arcmsr_free_mu(acb);
pci_release_regions(pdev);
-
- scsi_host_put(host);
-
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
}
@@ -840,7 +985,9 @@ static void arcmsr_shutdown(struct pci_d
struct Scsi_Host *host = pci_get_drvdata(pdev);
struct AdapterControlBlock *acb =
(struct AdapterControlBlock *)host->hostdata;
-
+ del_timer_sync(&acb->eternal_timer);
+ arcmsr_disable_outbound_ints(acb);
+ flush_scheduled_work();
arcmsr_stop_adapter_bgrb(acb);
arcmsr_flush_adapter_cache(acb);
}
@@ -860,7 +1007,7 @@ static void arcmsr_module_exit(void)
module_init(arcmsr_module_init);
module_exit(arcmsr_module_exit);

-static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb, \
+static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb,
u32 intmask_org)
{
u32 mask;
@@ -870,7 +1017,8 @@ static void arcmsr_enable_outbound_ints(
case ACB_ADAPTER_TYPE_A : {
struct MessageUnit_A __iomem *reg = acb->pmuA;
mask = intmask_org &
~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE |
- ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE);
+ ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE|
+ ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE);
writel(mask, &reg->outbound_intmask);
acb->outbound_int_enable = ~(intmask_org & mask) &
0x000000ff;
}
@@ -878,9 +1026,11 @@ static void arcmsr_enable_outbound_ints(

case ACB_ADAPTER_TYPE_B : {
struct MessageUnit_B *reg = acb->pmuB;
- mask = intmask_org | (ARCMSR_IOP2DRV_DATA_WRITE_OK | \
- ARCMSR_IOP2DRV_DATA_READ_OK |
ARCMSR_IOP2DRV_CDB_DONE);
- writel(mask, reg->iop2drv_doorbell_mask_reg);
+ mask = intmask_org | (ARCMSR_IOP2DRV_DATA_WRITE_OK |
+ ARCMSR_IOP2DRV_DATA_READ_OK |
+ ARCMSR_IOP2DRV_CDB_DONE |
+ ARCMSR_IOP2DRV_MESSAGE_CMD_DONE);
+ writel(mask, reg->iop2drv_doorbell_mask);
acb->outbound_int_enable = (intmask_org | mask) &
0x0000000f;
}
}
@@ -893,6 +1043,9 @@ static int arcmsr_build_ccb(struct Adapt
int8_t *psge = (int8_t *)&arcmsr_cdb->u;
__le32 address_lo, address_hi;
int arccdbsize = 0x30;
+ __le32 length = 0;
+ int i, cdb_sgcount = 0;
+ struct scatterlist *sg;
int nseg;

ccb->pcmd = pcmd;
@@ -902,49 +1055,42 @@ static int arcmsr_build_ccb(struct Adapt
arcmsr_cdb->LUN = pcmd->device->lun;
arcmsr_cdb->Function = 1;
arcmsr_cdb->CdbLength = (uint8_t)pcmd->cmd_len;
- arcmsr_cdb->Context = (unsigned long)arcmsr_cdb;
+ arcmsr_cdb->Context = 0;
memcpy(arcmsr_cdb->Cdb, pcmd->cmnd, pcmd->cmd_len);

nseg = scsi_dma_map(pcmd);
- if (nseg > ARCMSR_MAX_SG_ENTRIES)
+ if(nseg > acb->host->sg_tablesize || nseg < 0)
return FAILED;
- BUG_ON(nseg < 0);
-
- if (nseg) {
- __le32 length;
- int i, cdb_sgcount = 0;
- struct scatterlist *sg;
-
- /* map stor port SG list to our iop SG List. */
- scsi_for_each_sg(pcmd, sg, nseg, i) {
- /* Get the physical address of the current data
pointer */
- length = cpu_to_le32(sg_dma_len(sg));
- address_lo =
cpu_to_le32(dma_addr_lo32(sg_dma_address(sg)));
- address_hi =
cpu_to_le32(dma_addr_hi32(sg_dma_address(sg)));
- if (address_hi == 0) {
- struct SG32ENTRY *pdma_sg = (struct
SG32ENTRY *)psge;
-
- pdma_sg->address = address_lo;
- pdma_sg->length = length;
- psge += sizeof (struct SG32ENTRY);
- arccdbsize += sizeof (struct SG32ENTRY);
- } else {
- struct SG64ENTRY *pdma_sg = (struct
SG64ENTRY *)psge;
+ /* map stor port SG list to our iop SG List. */
+ scsi_for_each_sg(pcmd, sg, nseg, i) {
+ /* Get the physical address of the current data pointer */
+ length = cpu_to_le32(sg_dma_len(sg));
+ address_lo = cpu_to_le32(dma_addr_lo32(sg_dma_address(sg)));
+ address_hi = cpu_to_le32(dma_addr_hi32(sg_dma_address(sg)));
+ if (address_hi == 0) {
+ struct SG32ENTRY *pdma_sg = (struct SG32ENTRY
*)psge;
+
+ pdma_sg->address = address_lo;
+ pdma_sg->length = length;
+ psge += sizeof (struct SG32ENTRY);
+ arccdbsize += sizeof (struct SG32ENTRY);
+ } else {
+ struct SG64ENTRY *pdma_sg = (struct SG64ENTRY
*)psge;

- pdma_sg->addresshigh = address_hi;
- pdma_sg->address = address_lo;
- pdma_sg->length =
length|cpu_to_le32(IS_SG64_ADDR);
- psge += sizeof (struct SG64ENTRY);
- arccdbsize += sizeof (struct SG64ENTRY);
- }
- cdb_sgcount++;
- }
- arcmsr_cdb->sgcount = (uint8_t)cdb_sgcount;
- arcmsr_cdb->DataLength = scsi_bufflen(pcmd);
- if ( arccdbsize > 256)
- arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_SGL_BSIZE;
- }
- if (pcmd->sc_data_direction == DMA_TO_DEVICE ) {
+ pdma_sg->addresshigh = address_hi;
+ pdma_sg->address = address_lo;
+ pdma_sg->length = length|cpu_to_le32(IS_SG64_ADDR);
+ psge += sizeof (struct SG64ENTRY);
+ arccdbsize += sizeof (struct SG64ENTRY);
+ }
+ cdb_sgcount++;
+ }
+ arcmsr_cdb->sgcount = (uint8_t)cdb_sgcount;
+ arcmsr_cdb->DataLength = scsi_bufflen(pcmd);
+ arcmsr_cdb->msgPages = arccdbsize/0x100 + (arccdbsize % 0x100 ? 1 :
0);
+ if ( arccdbsize > 256)
+ arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_SGL_BSIZE;
+ if (pcmd->cmnd[0]|WRITE_6 || pcmd->cmnd[0]|WRITE_10 ||
pcmd->cmnd[0]|WRITE_12 ){
arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_WRITE;
ccb->ccb_flags |= CCB_FLAG_WRITE;
}
@@ -953,7 +1099,7 @@ static int arcmsr_build_ccb(struct Adapt

static void arcmsr_post_ccb(struct AdapterControlBlock *acb, struct
CommandControlBlock *ccb)
{
- uint32_t cdb_shifted_phyaddr = ccb->cdb_shifted_phyaddr;
+ uint32_t shifted_cdb_phyaddr = ccb->shifted_cdb_phyaddr;
struct ARCMSR_CDB *arcmsr_cdb = (struct ARCMSR_CDB
*)&ccb->arcmsr_cdb;
atomic_inc(&acb->ccboutstandingcount);
ccb->startdone = ARCMSR_CCB_START;
@@ -963,10 +1109,10 @@ static void arcmsr_post_ccb(struct Adapt
struct MessageUnit_A __iomem *reg = acb->pmuA;

if (arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE)
- writel(cdb_shifted_phyaddr |
ARCMSR_CCBPOST_FLAG_SGL_BSIZE,
+ writel(shifted_cdb_phyaddr |
ARCMSR_CCBPOST_FLAG_SGL_BSIZE,
&reg->inbound_queueport);
else {
- writel(cdb_shifted_phyaddr,
&reg->inbound_queueport);
+ writel(shifted_cdb_phyaddr,
&reg->inbound_queueport);
}
}
break;
@@ -978,16 +1124,16 @@ static void arcmsr_post_ccb(struct Adapt
ending_index = ((index + 1) % ARCMSR_MAX_HBB_POSTQUEUE);
writel(0, &reg->post_qbuffer[ending_index]);
if (arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE) {
- writel(cdb_shifted_phyaddr |
ARCMSR_CCBPOST_FLAG_SGL_BSIZE,\
+ writel(shifted_cdb_phyaddr |
ARCMSR_CCBPOST_FLAG_SGL_BSIZE,\
&reg->post_qbuffer[index]);
}
else {
- writel(cdb_shifted_phyaddr,
&reg->post_qbuffer[index]);
+ writel(shifted_cdb_phyaddr,
&reg->post_qbuffer[index]);
}
index++;
index %= ARCMSR_MAX_HBB_POSTQUEUE;/*if last index number set
it to 0 */
reg->postq_index = index;
- writel(ARCMSR_DRV2IOP_CDB_POSTED,
reg->drv2iop_doorbell_reg);
+ writel(ARCMSR_DRV2IOP_CDB_POSTED, reg->drv2iop_doorbell);
}
break;
}
@@ -1010,7 +1156,7 @@ static void arcmsr_stop_hbb_bgrb(struct
{
struct MessageUnit_B *reg = acb->pmuB;
acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
- writel(ARCMSR_MESSAGE_STOP_BGRB, reg->drv2iop_doorbell_reg);
+ writel(ARCMSR_MESSAGE_STOP_BGRB, reg->drv2iop_doorbell);

if (arcmsr_hbb_wait_msgint_ready(acb)) {
printk(KERN_NOTICE
@@ -1038,23 +1184,14 @@ static void arcmsr_free_ccb_pool(struct
{
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A: {
+ dma_free_coherent(&acb->pdev->dev, acb->uncache_size,
acb->dma_coherent, acb->dma_coherent_handle);
iounmap(acb->pmuA);
- dma_free_coherent(&acb->pdev->dev,
- ARCMSR_MAX_FREECCB_NUM * sizeof (struct CommandControlBlock)
+ 0x20,
- acb->dma_coherent,
- acb->dma_coherent_handle);
- break;
}
+ break;
case ACB_ADAPTER_TYPE_B: {
- struct MessageUnit_B *reg = acb->pmuB;
- iounmap(reg->drv2iop_doorbell_reg -
ARCMSR_DRV2IOP_DOORBELL);
- iounmap(reg->ioctl_wbuffer_reg - ARCMSR_IOCTL_WBUFFER);
- dma_free_coherent(&acb->pdev->dev,
- (ARCMSR_MAX_FREECCB_NUM * sizeof(struct CommandControlBlock)
+ 0x20 +
- sizeof(struct MessageUnit_B)), acb->dma_coherent,
acb->dma_coherent_handle);
+ dma_free_coherent(&acb->pdev->dev, acb->uncache_size,
acb->dma_coherent, acb->dma_coherent_handle);
}
}
-
}

void arcmsr_iop_message_read(struct AdapterControlBlock *acb)
@@ -1068,7 +1205,7 @@ void arcmsr_iop_message_read(struct Adap

case ACB_ADAPTER_TYPE_B: {
struct MessageUnit_B *reg = acb->pmuB;
- writel(ARCMSR_DRV2IOP_DATA_READ_OK,
reg->drv2iop_doorbell_reg);
+ writel(ARCMSR_DRV2IOP_DATA_READ_OK, reg->drv2iop_doorbell);
}
break;
}
@@ -1093,7 +1230,7 @@ static void arcmsr_iop_message_wrote(str
** push inbound doorbell tell iop, driver data write ok
** and wait reply on next hwinterrupt for next Qbuffer post
*/
- writel(ARCMSR_DRV2IOP_DATA_WRITE_OK,
reg->drv2iop_doorbell_reg);
+ writel(ARCMSR_DRV2IOP_DATA_WRITE_OK, reg->drv2iop_doorbell);
}
break;
}
@@ -1113,7 +1250,7 @@ struct QBUFFER __iomem *arcmsr_get_iop_r

case ACB_ADAPTER_TYPE_B: {
struct MessageUnit_B *reg = acb->pmuB;
- qbuffer = (struct QBUFFER __iomem *)reg->ioctl_rbuffer_reg;
+ qbuffer = (struct QBUFFER __iomem *)reg->message_rbuffer;
}
break;
}
@@ -1134,7 +1271,7 @@ static struct QBUFFER __iomem *arcmsr_ge

case ACB_ADAPTER_TYPE_B: {
struct MessageUnit_B *reg = acb->pmuB;
- pqbuffer = (struct QBUFFER __iomem *)reg->ioctl_wbuffer_reg;
+ pqbuffer = (struct QBUFFER __iomem *)reg->message_wbuffer;
}
break;
}
@@ -1248,14 +1385,36 @@ static void arcmsr_hbb_postqueue_isr(str
reg->doneq_index = index;
}
}
-
+/*
+***************************************************************************
*******
+** Handle a message interrupt
+**
+** The only message interrupt we expect is in response to a query for the
current adapter config.
+** We want this in order to compare the drivemap so that we can detect
newly-attached drives.
+***************************************************************************
*******
+*/
+static void arcmsr_hba_message_isr(struct AdapterControlBlock *acb)
+{
+ struct MessageUnit_A *reg = acb->pmuA;
+ /*clear interrupt and message state*/
+ writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT, &reg->outbound_intstatus);
+ schedule_work(&acb->arcmsr_do_message_isr_bh);
+}
+static void arcmsr_hbb_message_isr(struct AdapterControlBlock *acb)
+{
+ struct MessageUnit_B *reg = acb->pmuB;
+
+ /*clear interrupt and message state*/
+ writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
+ schedule_work(&acb->arcmsr_do_message_isr_bh);
+}
static int arcmsr_handle_hba_isr(struct AdapterControlBlock *acb)
{
uint32_t outbound_intstatus;
struct MessageUnit_A __iomem *reg = acb->pmuA;

- outbound_intstatus = readl(&reg->outbound_intstatus) & \
-
acb->outbound_int_enable;
+ outbound_intstatus = readl(&reg->outbound_intstatus) &
+ acb->outbound_int_enable;
if (!(outbound_intstatus & ARCMSR_MU_OUTBOUND_HANDLE_INT)) {
return 1;
}
@@ -1266,6 +1425,10 @@ static int arcmsr_handle_hba_isr(struct
if (outbound_intstatus & ARCMSR_MU_OUTBOUND_POSTQUEUE_INT) {
arcmsr_hba_postqueue_isr(acb);
}
+ if(outbound_intstatus & ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
+ /* messenger of "driver to iop commands" */
+ arcmsr_hba_message_isr(acb);
+ }
return 0;
}

@@ -1274,16 +1437,17 @@ static int arcmsr_handle_hbb_isr(struct
uint32_t outbound_doorbell;
struct MessageUnit_B *reg = acb->pmuB;

- outbound_doorbell = readl(reg->iop2drv_doorbell_reg) & \
-
acb->outbound_int_enable;
+ outbound_doorbell = readl(reg->iop2drv_doorbell) &
+ acb->outbound_int_enable;
if (!outbound_doorbell)
return 1;

- writel(~outbound_doorbell, reg->iop2drv_doorbell_reg);
- /*in case the last action of doorbell interrupt clearance is cached,
this action can push HW to write down the clear bit*/
- readl(reg->iop2drv_doorbell_reg);
- writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT, reg->drv2iop_doorbell_reg);
- if (outbound_doorbell & ARCMSR_IOP2DRV_DATA_WRITE_OK) {
+ writel(~outbound_doorbell, reg->iop2drv_doorbell);
+ /*in case the last action of doorbell interrupt clearance is cached,
+ this action can push HW to write down the clear bit*/
+ readl(reg->iop2drv_doorbell);
+ writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT, reg->drv2iop_doorbell);
+ if (outbound_doorbell & ARCMSR_IOP2DRV_DATA_WRITE_OK) {
arcmsr_iop2drv_data_wrote_handle(acb);
}
if (outbound_doorbell & ARCMSR_IOP2DRV_DATA_READ_OK) {
@@ -1292,10 +1456,13 @@ static int arcmsr_handle_hbb_isr(struct
if (outbound_doorbell & ARCMSR_IOP2DRV_CDB_DONE) {
arcmsr_hbb_postqueue_isr(acb);
}
+ if(outbound_doorbell & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
+ /* messenger of "driver to iop commands" */
+ arcmsr_hbb_message_isr(acb);
+ }

return 0;
}
-
static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb)
{
switch (acb->adapter_type) {
@@ -1359,7 +1526,7 @@ void arcmsr_post_ioctldata2iop(struct Ad
}
}

-static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, \
+static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb,
struct scsi_cmnd *cmd)
{
struct CMD_MESSAGE_FIELD *pcmdmessagefld;
@@ -1397,6 +1564,7 @@ static int arcmsr_iop_message_xfer(struc
retvalue = ARCMSR_MESSAGE_FAIL;
goto message_out;
}
+
ptmpQbuffer = ver_addr;
while ((acb->rqbuf_firstindex != acb->rqbuf_lastindex)
&& (allxfer_len < 1031)) {
@@ -1428,7 +1596,11 @@ static int arcmsr_iop_message_xfer(struc
}
memcpy(pcmdmessagefld->messagedatabuffer, ver_addr,
allxfer_len);
pcmdmessagefld->cmdmessage.Length = allxfer_len;
- pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_OK;
+ if(acb->fw_flag == FW_DEADLOCK) {
+ pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
+ }else{
+ pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_OK;
+ }
kfree(ver_addr);
}
break;
@@ -1443,6 +1615,13 @@ static int arcmsr_iop_message_xfer(struc
retvalue = ARCMSR_MESSAGE_FAIL;
goto message_out;
}
+ if(acb->fw_flag == FW_DEADLOCK) {
+ pcmdmessagefld->cmdmessage.ReturnCode =
+ ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
+ }else{
+ pcmdmessagefld->cmdmessage.ReturnCode =
+ ARCMSR_MESSAGE_RETURNCODE_OK;
+ }
ptmpuserbuffer = ver_addr;
user_len = pcmdmessagefld->cmdmessage.Length;
memcpy(ptmpuserbuffer, pcmdmessagefld->messagedatabuffer,
user_len);
@@ -1495,7 +1674,6 @@ static int arcmsr_iop_message_xfer(struc

case ARCMSR_MESSAGE_CLEAR_RQBUFFER: {
uint8_t *pQbuffer = acb->rqbuffer;
-
if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
arcmsr_iop_message_read(acb);
@@ -1504,12 +1682,25 @@ static int arcmsr_iop_message_xfer(struc
acb->rqbuf_firstindex = 0;
acb->rqbuf_lastindex = 0;
memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
- pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_OK;
+ if(acb->fw_flag == FW_DEADLOCK) {
+ pcmdmessagefld->cmdmessage.ReturnCode =
+ ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
+ }else{
+ pcmdmessagefld->cmdmessage.ReturnCode =
+ ARCMSR_MESSAGE_RETURNCODE_OK;
+ }
}
break;

case ARCMSR_MESSAGE_CLEAR_WQBUFFER: {
uint8_t *pQbuffer = acb->wqbuffer;
+ if(acb->fw_flag == FW_DEADLOCK) {
+ pcmdmessagefld->cmdmessage.ReturnCode =
+ ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
+ }else{
+ pcmdmessagefld->cmdmessage.ReturnCode =
+ ARCMSR_MESSAGE_RETURNCODE_OK;
+ }

if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
@@ -1521,8 +1712,6 @@ static int arcmsr_iop_message_xfer(struc
acb->wqbuf_firstindex = 0;
acb->wqbuf_lastindex = 0;
memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
- pcmdmessagefld->cmdmessage.ReturnCode =
- ARCMSR_MESSAGE_RETURNCODE_OK;
}
break;

@@ -1545,29 +1734,53 @@ static int arcmsr_iop_message_xfer(struc
memset(pQbuffer, 0, sizeof(struct QBUFFER));
pQbuffer = acb->wqbuffer;
memset(pQbuffer, 0, sizeof(struct QBUFFER));
- pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_OK;
+ if(acb->fw_flag == FW_DEADLOCK) {
+ pcmdmessagefld->cmdmessage.ReturnCode =
+ ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
+ }else{
+ pcmdmessagefld->cmdmessage.ReturnCode =
+ ARCMSR_MESSAGE_RETURNCODE_OK;
+ }
}
break;

case ARCMSR_MESSAGE_RETURN_CODE_3F: {
- pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_3F;
+ if(acb->fw_flag == FW_DEADLOCK) {
+ pcmdmessagefld->cmdmessage.ReturnCode =
+ ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
+ }else{
+ pcmdmessagefld->cmdmessage.ReturnCode =
+ ARCMSR_MESSAGE_RETURNCODE_3F;
}
break;
-
+ }
case ARCMSR_MESSAGE_SAY_HELLO: {
int8_t *hello_string = "Hello! I am ARCMSR";
-
+ if(acb->fw_flag == FW_DEADLOCK) {
+ pcmdmessagefld->cmdmessage.ReturnCode =
+ ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
+ }else{
+ pcmdmessagefld->cmdmessage.ReturnCode =
+ ARCMSR_MESSAGE_RETURNCODE_OK;
+ }
memcpy(pcmdmessagefld->messagedatabuffer, hello_string
, (int16_t)strlen(hello_string));
- pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_OK;
}
break;

case ARCMSR_MESSAGE_SAY_GOODBYE:
+ if(acb->fw_flag == FW_DEADLOCK) {
+ pcmdmessagefld->cmdmessage.ReturnCode =
+ ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
+ }
arcmsr_iop_parking(acb);
break;

case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE:
+ if(acb->fw_flag == FW_DEADLOCK) {
+ pcmdmessagefld->cmdmessage.ReturnCode =
+ ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON;
+ }
arcmsr_flush_adapter_cache(acb);
break;

@@ -1584,11 +1797,16 @@ static struct CommandControlBlock *arcms
{
struct list_head *head = &acb->ccb_free_list;
struct CommandControlBlock *ccb = NULL;
-
+ unsigned long flags;
+ spin_lock_irqsave(&acb->ccblist_lock, flags);
if (!list_empty(head)) {
ccb = list_entry(head->next, struct CommandControlBlock,
list);
- list_del(head->next);
+ list_del_init(&ccb->list);
+ }else{
+ spin_unlock_irqrestore(&acb->ccblist_lock, flags);
+ return 0;
}
+ spin_unlock_irqrestore(&acb->ccblist_lock, flags);
return ccb;
}

@@ -1650,38 +1868,25 @@ static int arcmsr_queue_command(struct s
struct CommandControlBlock *ccb;
int target = cmd->device->id;
int lun = cmd->device->lun;
-
+ uint8_t scsicmd = cmd->cmnd[0];
cmd->scsi_done = done;
cmd->host_scribble = NULL;
cmd->result = 0;
- if (acb->acb_flags & ACB_F_BUS_RESET) {
- printk(KERN_NOTICE "arcmsr%d: bus reset"
- " and return busy \n"
- , acb->host->host_no);
- return SCSI_MLQUEUE_HOST_BUSY;
+
+ if((scsicmd == SYNCHRONIZE_CACHE) ||(scsicmd == SEND_DIAGNOSTIC)) {
+ if(acb->devstate[target][lun] == ARECA_RAID_GONE) {
+ cmd->result = (DID_NO_CONNECT << 16);
+ }
+ cmd->scsi_done(cmd);
+ return 0;
}
+
if (target == 16) {
/* virtual device for iop message transfer */
arcmsr_handle_virtual_command(acb, cmd);
return 0;
}
- if (acb->devstate[target][lun] == ARECA_RAID_GONE) {
- uint8_t block_cmd;

- block_cmd = cmd->cmnd[0] & 0x0f;
- if (block_cmd == 0x08 || block_cmd == 0x0a) {
- printk(KERN_NOTICE
- "arcmsr%d: block 'read/write'"
- "command with gone raid volume"
- " Cmd = %2x, TargetId = %d, Lun = %d \n"
- , acb->host->host_no
- , cmd->cmnd[0]
- , target, lun);
- cmd->result = (DID_NO_CONNECT << 16);
- cmd->scsi_done(cmd);
- return 0;
- }
- }
if (atomic_read(&acb->ccboutstandingcount) >=
ARCMSR_MAX_OUTSTANDING_CMD)
return SCSI_MLQUEUE_HOST_BUSY;
@@ -1698,23 +1903,24 @@ static int arcmsr_queue_command(struct s
return 0;
}

-static void arcmsr_get_hba_config(struct AdapterControlBlock *acb)
-{
+static bool arcmsr_get_hba_config(struct AdapterControlBlock *acb){
struct MessageUnit_A __iomem *reg = acb->pmuA;
char *acb_firm_model = acb->firm_model;
char *acb_firm_version = acb->firm_version;
+ char *acb_device_map = acb->device_map;
char __iomem *iop_firm_model = (char __iomem
*)(&reg->message_rwbuffer[15]);
char __iomem *iop_firm_version = (char __iomem
*)(&reg->message_rwbuffer[17]);
+ char __iomem *iop_device_map = (char __iomem *)
(&reg->message_rwbuffer[21]);
int count;

writel(ARCMSR_INBOUND_MESG0_GET_CONFIG, &reg->inbound_msgaddr0);
if (arcmsr_hba_wait_msgint_ready(acb)) {
printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
miscellaneous data' timeout \n",
acb->host->host_no);
+ return false;
}
-
count = 8;
- while (count) {
+ while (count){
*acb_firm_model = readb(iop_firm_model);
acb_firm_model++;
iop_firm_model++;
@@ -1722,95 +1928,131 @@ static void arcmsr_get_hba_config(struct
}

count = 16;
- while (count) {
+ while (count){
*acb_firm_version = readb(iop_firm_version);
acb_firm_version++;
iop_firm_version++;
count--;
}

- printk(KERN_INFO "ARECA RAID ADAPTER%d: FIRMWARE VERSION %s
\n"
- , acb->host->host_no
- , acb->firm_version);
-
+ count=16;
+ while(count){
+ *acb_device_map=readb(iop_device_map);
+ acb_device_map++;
+ iop_device_map++;
+ count--;
+ }
+ printk(KERN_NOTICE "Areca RAID Controller%d: F/W %s & Model %s\n",
+ acb->host->host_no,
+ acb->firm_version,
+ acb->firm_model);
+ acb->signature = readl(&reg->message_rwbuffer[0]);
acb->firm_request_len = readl(&reg->message_rwbuffer[1]);
acb->firm_numbers_queue = readl(&reg->message_rwbuffer[2]);
acb->firm_sdram_size = readl(&reg->message_rwbuffer[3]);
acb->firm_hd_channels = readl(&reg->message_rwbuffer[4]);
+ acb->firm_cfg_version = readl(&reg->message_rwbuffer[25]);
/*firm_cfg_version,25,100-103*/
+ return true;
}
-
-static void arcmsr_get_hbb_config(struct AdapterControlBlock *acb)
+static bool arcmsr_get_hbb_config(struct AdapterControlBlock *acb)
{
struct MessageUnit_B *reg = acb->pmuB;
- uint32_t __iomem *lrwbuffer = reg->msgcode_rwbuffer_reg;
+ struct pci_dev *pdev = acb->pdev;
+ void *dma_coherent;
+ dma_addr_t dma_coherent_handle;
char *acb_firm_model = acb->firm_model;
char *acb_firm_version = acb->firm_version;
- char __iomem *iop_firm_model = (char __iomem *)(&lrwbuffer[15]);
+ char *acb_device_map = acb->device_map;
+ char __iomem *iop_firm_model;
/*firm_model,15,60-67*/
- char __iomem *iop_firm_version = (char __iomem *)(&lrwbuffer[17]);
+ char __iomem *iop_firm_version;
/*firm_version,17,68-83*/
+ char __iomem *iop_device_map;
+ /*firm_version,21,84-99*/
int count;
+ dma_coherent = dma_alloc_coherent(&pdev->dev, sizeof(struct
MessageUnit_B), &dma_coherent_handle, GFP_KERNEL);
+ if (!dma_coherent){
+ printk("arcmsr%d: dma_alloc_coherent got error for hbb
mu\n", acb->host->host_no);
+ return false;
+ }
+ acb->dma_coherent_handle_hbb_mu = dma_coherent_handle;
+ reg = (struct MessageUnit_B *)dma_coherent;
+ acb->pmuB = reg;
+ reg->drv2iop_doorbell= (uint32_t __iomem *)((unsigned
long)acb->mem_base0 + ARCMSR_DRV2IOP_DOORBELL);
+ reg->drv2iop_doorbell_mask = (uint32_t __iomem *)((unsigned
long)acb->mem_base0 + ARCMSR_DRV2IOP_DOORBELL_MASK);
+ reg->iop2drv_doorbell = (uint32_t __iomem *)((unsigned
long)acb->mem_base0 + ARCMSR_IOP2DRV_DOORBELL);
+ reg->iop2drv_doorbell_mask = (uint32_t __iomem *)((unsigned
long)acb->mem_base0 + ARCMSR_IOP2DRV_DOORBELL_MASK);
+ reg->message_wbuffer = (uint32_t __iomem *)((unsigned
long)acb->mem_base1 + ARCMSR_MESSAGE_WBUFFER);
+ reg->message_rbuffer = (uint32_t __iomem *)((unsigned
long)acb->mem_base1 + ARCMSR_MESSAGE_RBUFFER);
+ reg->message_rwbuffer = (uint32_t __iomem *)((unsigned
long)acb->mem_base1 + ARCMSR_MESSAGE_RWBUFFER);
+ iop_firm_model = (char __iomem *)(&reg->message_rwbuffer[15]);
/*firm_model,15,60-67*/
+ iop_firm_version = (char __iomem *)(&reg->message_rwbuffer[17]);
/*firm_version,17,68-83*/
+ iop_device_map = (char __iomem *)(&reg->message_rwbuffer[21]);
/*firm_version,21,84-99*/

- writel(ARCMSR_MESSAGE_GET_CONFIG, reg->drv2iop_doorbell_reg);
- if (arcmsr_hbb_wait_msgint_ready(acb)) {
+ writel(ARCMSR_MESSAGE_GET_CONFIG, reg->drv2iop_doorbell);
+ if (arcmsr_hbb_wait_msgint_ready(acb)){
printk(KERN_NOTICE "arcmsr%d: wait 'get adapter firmware \
miscellaneous data' timeout \n",
acb->host->host_no);
+ return false;
}
-
count = 8;
- while (count)
- {
+ while (count){
*acb_firm_model = readb(iop_firm_model);
acb_firm_model++;
iop_firm_model++;
count--;
}
-
count = 16;
- while (count)
- {
+ while (count){
*acb_firm_version = readb(iop_firm_version);
acb_firm_version++;
iop_firm_version++;
count--;
}

- printk(KERN_INFO "ARECA RAID ADAPTER%d: FIRMWARE VERSION %s \n",
- acb->host->host_no,
- acb->firm_version);
-
- lrwbuffer++;
- acb->firm_request_len = readl(lrwbuffer++);
+ count=16;
+ while(count){
+ *acb_device_map=readb(iop_device_map);
+ acb_device_map++;
+ iop_device_map++;
+ count--;
+ }
+
+ printk(KERN_NOTICE "Areca RAID Controller%d: F/W %s & Model %s\n",
+ acb->host->host_no,
+ acb->firm_version,
+ acb->firm_model);
+
+ acb->signature = readl(&reg->message_rwbuffer[1]);
+ /*firm_signature,1,00-03*/
+ acb->firm_request_len=readl(&reg->message_rwbuffer[2]);
/*firm_request_len,1,04-07*/
- acb->firm_numbers_queue = readl(lrwbuffer++);
+ acb->firm_numbers_queue=readl(&reg->message_rwbuffer[3]);
/*firm_numbers_queue,2,08-11*/
- acb->firm_sdram_size = readl(lrwbuffer++);
+ acb->firm_sdram_size=readl(&reg->message_rwbuffer[4]);
/*firm_sdram_size,3,12-15*/
- acb->firm_hd_channels = readl(lrwbuffer);
+ acb->firm_hd_channels=readl(&reg->message_rwbuffer[5]);
/*firm_ide_channels,4,16-19*/
+ acb->firm_cfg_version=readl(&reg->message_rwbuffer[25]);
/*firm_cfg_version,25,100-103*/
+ /*firm_ide_channels,4,16-19*/
+ return true;
}
-
-static void arcmsr_get_firmware_spec(struct AdapterControlBlock *acb)
+static bool arcmsr_get_firmware_spec(struct AdapterControlBlock *acb)
{
- switch (acb->adapter_type) {
- case ACB_ADAPTER_TYPE_A: {
- arcmsr_get_hba_config(acb);
- }
- break;
-
- case ACB_ADAPTER_TYPE_B: {
- arcmsr_get_hbb_config(acb);
- }
- break;
- }
+ if(acb->adapter_type == ACB_ADAPTER_TYPE_A)
+ return arcmsr_get_hba_config(acb);
+ else
+ return arcmsr_get_hbb_config(acb);
}

-static void arcmsr_polling_hba_ccbdone(struct AdapterControlBlock *acb,
+static int arcmsr_polling_hba_ccbdone(struct AdapterControlBlock *acb,
struct CommandControlBlock *poll_ccb)
{
struct MessageUnit_A __iomem *reg = acb->pmuA;
struct CommandControlBlock *ccb;
+ struct ARCMSR_CDB *arcmsr_cdb;
uint32_t flag_ccb, outbound_intstatus, poll_ccb_done = 0, poll_count
= 0;
+ int rtn;

polling_hba_ccb_retry:
poll_count++;
@@ -1818,16 +2060,19 @@ static void arcmsr_polling_hba_ccbdone(s
writel(outbound_intstatus, &reg->outbound_intstatus);/*clear
interrupt*/
while (1) {
if ((flag_ccb = readl(&reg->outbound_queueport)) ==
0xFFFFFFFF) {
- if (poll_ccb_done)
+ if (poll_ccb_done){
+ rtn = SUCCESS;
break;
- else {
- msleep(25);
- if (poll_count > 100)
+ }else {
+ if (poll_count > 100){
+ rtn = FAILED;
break;
+ }
goto polling_hba_ccb_retry;
}
}
- ccb = (struct CommandControlBlock *)(acb->vir2phy_offset +
(flag_ccb << 5));
+ arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset +
(flag_ccb << 5));
+ ccb = container_of(arcmsr_cdb, struct CommandControlBlock,
arcmsr_cdb);
poll_ccb_done = (ccb == poll_ccb) ? 1:0;
if ((ccb->acb != acb) || (ccb->startdone !=
ARCMSR_CCB_START)) {
if ((ccb->startdone == ARCMSR_CCB_ABORTED) || (ccb
== poll_ccb)) {
@@ -1838,8 +2083,7 @@ static void arcmsr_polling_hba_ccbdone(s
, ccb->pcmd->device->lun
, ccb);
ccb->pcmd->result = DID_ABORT << 16;
- arcmsr_ccb_complete(ccb, 1);
- poll_ccb_done = 1;
+ arcmsr_ccb_complete(ccb);
continue;
}
printk(KERN_NOTICE "arcmsr%d: polling get an illegal
ccb"
@@ -1849,87 +2093,97 @@ static void arcmsr_polling_hba_ccbdone(s
, ccb
, atomic_read(&acb->ccboutstandingcount));
continue;
+ }else{
+ arcmsr_report_ccb_state(acb, ccb, flag_ccb);
}
- arcmsr_report_ccb_state(acb, ccb, flag_ccb);
}
+ return rtn;
}

-static void arcmsr_polling_hbb_ccbdone(struct AdapterControlBlock *acb,
+static int arcmsr_polling_hbb_ccbdone(struct AdapterControlBlock *acb,
struct CommandControlBlock
*poll_ccb)
{
- struct MessageUnit_B *reg = acb->pmuB;
- struct CommandControlBlock *ccb;
- uint32_t flag_ccb, poll_ccb_done = 0, poll_count = 0;
- int index;
-
+ struct MessageUnit_B *reg = acb->pmuB;
+ struct ARCMSR_CDB *arcmsr_cdb;
+ struct CommandControlBlock *ccb;
+ uint32_t flag_ccb, poll_ccb_done = 0, poll_count = 0;
+ int index, rtn;
+
polling_hbb_ccb_retry:
- poll_count++;
- /* clear doorbell interrupt */
- writel(ARCMSR_DOORBELL_INT_CLEAR_PATTERN,
reg->iop2drv_doorbell_reg);
- while (1) {
- index = reg->doneq_index;
- if ((flag_ccb = readl(&reg->done_qbuffer[index])) ==
0) {
- if (poll_ccb_done)
+ poll_count++;
+ /* clear doorbell interrupt */
+ writel(ARCMSR_DOORBELL_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
+ while(1){
+ index = reg->doneq_index;
+ if ((flag_ccb = readl(&reg->done_qbuffer[index])) == 0) {
+ if (poll_ccb_done){
+ rtn = SUCCESS;
+ break;
+ }else {
+ msleep(25);
+ if (poll_count > 100){
+ rtn = FAILED;
break;
- else {
- msleep(25);
- if (poll_count > 100)
- break;
- goto polling_hbb_ccb_retry;
}
+ goto polling_hbb_ccb_retry;
}
- writel(0, &reg->done_qbuffer[index]);
- index++;
- /*if last index number set it to 0 */
- index %= ARCMSR_MAX_HBB_POSTQUEUE;
- reg->doneq_index = index;
- /* check ifcommand done with no error*/
- ccb = (struct CommandControlBlock *)\
- (acb->vir2phy_offset + (flag_ccb << 5));/*frame must be 32 bytes
aligned*/
- poll_ccb_done = (ccb == poll_ccb) ? 1:0;
- if ((ccb->acb != acb) || (ccb->startdone !=
ARCMSR_CCB_START)) {
- if ((ccb->startdone == ARCMSR_CCB_ABORTED)
|| (ccb == poll_ccb)) {
- printk(KERN_NOTICE "arcmsr%d: \
- scsi id = %d lun = %d ccb = '0x%p' poll command abort
successfully \n"
- ,acb->host->host_no
- ,ccb->pcmd->device->id
- ,ccb->pcmd->device->lun
- ,ccb);
- ccb->pcmd->result = DID_ABORT << 16;
- arcmsr_ccb_complete(ccb, 1);
- continue;
- }
- printk(KERN_NOTICE "arcmsr%d: polling get an
illegal ccb"
- " command done ccb = '0x%p'"
- "ccboutstandingcount = %d \n"
- , acb->host->host_no
- , ccb
- ,
atomic_read(&acb->ccboutstandingcount));
+ }
+ writel(0, &reg->done_qbuffer[index]);
+ index++;
+ /*if last index number set it to 0 */
+ index %= ARCMSR_MAX_HBB_POSTQUEUE;
+ reg->doneq_index = index;
+ /* check if command done with no error*/
+ arcmsr_cdb = (struct ARCMSR_CDB *)(acb->vir2phy_offset +
(flag_ccb << 5));
+ ccb = container_of(arcmsr_cdb, struct CommandControlBlock,
arcmsr_cdb);
+ poll_ccb_done = (ccb == poll_ccb) ? 1:0;
+ if ((ccb->acb != acb) || (ccb->startdone !=
ARCMSR_CCB_START)) {
+ if ((ccb->startdone == ARCMSR_CCB_ABORTED) || (ccb
== poll_ccb)) {
+ printk(KERN_NOTICE "arcmsr%d: scsi id = %d
lun = %d ccb = '0x%p'"
+ " poll command abort successfully
\n"
+ ,acb->host->host_no
+ ,ccb->pcmd->device->id
+ ,ccb->pcmd->device->lun
+ ,ccb);
+ ccb->pcmd->result = DID_ABORT << 16;
+ arcmsr_ccb_complete(ccb);
continue;
}
+ printk(KERN_NOTICE "arcmsr%d: polling get an illegal
ccb"
+ " command done ccb = '0x%p'"
+ "ccboutstandingcount = %d \n"
+ , acb->host->host_no
+ , ccb
+ , atomic_read(&acb->ccboutstandingcount));
+ continue;
+ }else{
arcmsr_report_ccb_state(acb, ccb, flag_ccb);
- } /*drain reply FIFO*/
+ }
+ } /*drain reply FIFO*/
+ return rtn;
}

-static void arcmsr_polling_ccbdone(struct AdapterControlBlock *acb,
+static int arcmsr_polling_ccbdone(struct AdapterControlBlock *acb,
struct CommandControlBlock
*poll_ccb)
{
+ int rtn = 0;
switch (acb->adapter_type) {

case ACB_ADAPTER_TYPE_A: {
- arcmsr_polling_hba_ccbdone(acb,poll_ccb);
+ rtn = arcmsr_polling_hba_ccbdone(acb,poll_ccb);
}
break;

case ACB_ADAPTER_TYPE_B: {
- arcmsr_polling_hbb_ccbdone(acb,poll_ccb);
+ rtn = arcmsr_polling_hbb_ccbdone(acb,poll_ccb);
}
}
+ return rtn;
}

static int arcmsr_iop_confirm(struct AdapterControlBlock *acb)
{
- uint32_t cdb_phyaddr, ccb_phyaddr_hi32;
+ uint32_t cdb_phyaddr, cdb_phyaddr_hi32;
dma_addr_t dma_coherent_handle;
/*
********************************************************************
@@ -1939,7 +2193,7 @@ static int arcmsr_iop_confirm(struct Ada
*/
dma_coherent_handle = acb->dma_coherent_handle;
cdb_phyaddr = (uint32_t)(dma_coherent_handle);
- ccb_phyaddr_hi32 = (uint32_t)((cdb_phyaddr >> 16) >> 16);
+ cdb_phyaddr_hi32 = (uint32_t)((cdb_phyaddr >> 16) >> 16);
/*

***********************************************************************
** if adapter type B, set window of "post command Q"
@@ -1948,13 +2202,13 @@ static int arcmsr_iop_confirm(struct Ada
switch (acb->adapter_type) {

case ACB_ADAPTER_TYPE_A: {
- if (ccb_phyaddr_hi32 != 0) {
+ if (cdb_phyaddr_hi32 != 0) {
struct MessageUnit_A __iomem *reg = acb->pmuA;
uint32_t intmask_org;
intmask_org = arcmsr_disable_outbound_ints(acb);
writel(ARCMSR_SIGNATURE_SET_CONFIG, \
&reg->message_rwbuffer[0]);
- writel(ccb_phyaddr_hi32, &reg->message_rwbuffer[1]);
+ writel(cdb_phyaddr_hi32, &reg->message_rwbuffer[1]);
writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, \

&reg->inbound_msgaddr0);
if (arcmsr_hba_wait_msgint_ready(acb)) {
@@ -1977,19 +2231,18 @@ static int arcmsr_iop_confirm(struct Ada
intmask_org = arcmsr_disable_outbound_ints(acb);
reg->postq_index = 0;
reg->doneq_index = 0;
- writel(ARCMSR_MESSAGE_SET_POST_WINDOW,
reg->drv2iop_doorbell_reg);
+ writel(ARCMSR_MESSAGE_SET_POST_WINDOW,
reg->drv2iop_doorbell);
if (arcmsr_hbb_wait_msgint_ready(acb)) {
printk(KERN_NOTICE "arcmsr%d:can not set diver
mode\n", \
acb->host->host_no);
return 1;
}
- post_queue_phyaddr = cdb_phyaddr + ARCMSR_MAX_FREECCB_NUM *
\
- sizeof(struct CommandControlBlock) + offsetof(struct
MessageUnit_B, post_qbuffer) ;
- rwbuffer = reg->msgcode_rwbuffer_reg;
+ post_queue_phyaddr = acb->dma_coherent_handle_hbb_mu;
+ rwbuffer = reg->message_rwbuffer;
/* driver "set config" signature */
writel(ARCMSR_SIGNATURE_SET_CONFIG, rwbuffer++);
/* normal should be zero */
- writel(ccb_phyaddr_hi32, rwbuffer++);
+ writel(cdb_phyaddr_hi32, rwbuffer++);
/* postQ size (256 + 8)*4 */
writel(post_queue_phyaddr, rwbuffer++);
/* doneQ size (256 + 8)*4 */
@@ -1997,19 +2250,13 @@ static int arcmsr_iop_confirm(struct Ada
/* ccb maxQ size must be --> [(256 + 8)*4]*/
writel(1056, rwbuffer);

- writel(ARCMSR_MESSAGE_SET_CONFIG,
reg->drv2iop_doorbell_reg);
+ writel(ARCMSR_MESSAGE_SET_CONFIG, reg->drv2iop_doorbell);
if (arcmsr_hbb_wait_msgint_ready(acb)) {
printk(KERN_NOTICE "arcmsr%d: 'set command Q window'
\
timeout \n",acb->host->host_no);
return 1;
}
-
- writel(ARCMSR_MESSAGE_START_DRIVER_MODE,
reg->drv2iop_doorbell_reg);
- if (arcmsr_hbb_wait_msgint_ready(acb)) {
- printk(KERN_NOTICE "arcmsr%d: 'can not set diver
mode \n"\
- ,acb->host->host_no);
- return 1;
- }
+ arcmsr_hbb_enable_driver_mode(acb);
arcmsr_enable_outbound_ints(acb, intmask_org);
}
break;
@@ -2034,9 +2281,64 @@ static void arcmsr_wait_firmware_ready(s
case ACB_ADAPTER_TYPE_B: {
struct MessageUnit_B *reg = acb->pmuB;
do {
- firmware_state = readl(reg->iop2drv_doorbell_reg);
+ firmware_state = readl(reg->iop2drv_doorbell);
} while ((firmware_state & ARCMSR_MESSAGE_FIRMWARE_OK) ==
0);
- writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT,
reg->drv2iop_doorbell_reg);
+ writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT,
reg->drv2iop_doorbell);
+ }
+ break;
+ }
+}
+
+static void arcmsr_request_hba_device_map(struct AdapterControlBlock *acb)
+{
+ struct MessageUnit_A __iomem *reg = acb->pmuA;
+ if(unlikely(atomic_read(&acb->rq_map_token) == 0) ||
((acb->acb_flags & ACB_F_BUS_RESET) != 0 ) || ((acb->acb_flags &
ACB_F_ABORT) != 0 )){
+ return;
+ }else{
+ acb->fw_flag = FW_NORMAL;
+ if(atomic_read(&acb->ante_token_value) ==
atomic_read(&acb->rq_map_token)){
+ atomic_set(&acb->rq_map_token,16);
+ }
+ atomic_set(&acb->ante_token_value,
atomic_read(&acb->rq_map_token));
+ if(atomic_dec_and_test(&acb->rq_map_token))
+ return;
+ writel(ARCMSR_INBOUND_MESG0_GET_CONFIG,
&reg->inbound_msgaddr0);
+ mod_timer(&acb->eternal_timer, jiffies +
msecs_to_jiffies(6*HZ));
+ }
+ return;
+}
+
+static void arcmsr_request_hbb_device_map(struct AdapterControlBlock *acb)
+{
+ struct MessageUnit_B __iomem *reg = acb->pmuB;
+
+ if(unlikely(atomic_read(&acb->rq_map_token) == 0) ||
((acb->acb_flags & ACB_F_BUS_RESET) != 0 ) || ((acb->acb_flags &
ACB_F_ABORT) != 0 )){
+ return;
+ }else{
+ acb->fw_flag = FW_NORMAL;
+ if(atomic_read(&acb->ante_token_value) ==
atomic_read(&acb->rq_map_token)){
+ atomic_set(&acb->rq_map_token,16);
+ }
+ atomic_set(&acb->ante_token_value,
atomic_read(&acb->rq_map_token));
+ if(atomic_dec_and_test(&acb->rq_map_token))
+ return;
+ writel(ARCMSR_MESSAGE_GET_CONFIG, reg->drv2iop_doorbell);
+ mod_timer(&acb->eternal_timer, jiffies +
msecs_to_jiffies(6*HZ));
+ }
+ return;
+}
+
+static void arcmsr_request_device_map(unsigned long pacb)
+{
+ struct AdapterControlBlock *acb = (struct AdapterControlBlock
*)pacb;
+
+ switch (acb->adapter_type) {
+ case ACB_ADAPTER_TYPE_A: {
+ arcmsr_request_hba_device_map(acb);
+ }
+ break;
+ case ACB_ADAPTER_TYPE_B: {
+ arcmsr_request_hbb_device_map(acb);
}
break;
}
@@ -2057,7 +2359,7 @@ static void arcmsr_start_hbb_bgrb(struct
{
struct MessageUnit_B *reg = acb->pmuB;
acb->acb_flags |= ACB_F_MSG_START_BGRB;
- writel(ARCMSR_MESSAGE_START_BGRB, reg->drv2iop_doorbell_reg);
+ writel(ARCMSR_MESSAGE_START_BGRB, reg->drv2iop_doorbell);
if (arcmsr_hbb_wait_msgint_ready(acb)) {
printk(KERN_NOTICE "arcmsr%d: wait 'start adapter background
\
rebulid' timeout \n",acb->host->host_no);
@@ -2093,8 +2395,8 @@ static void arcmsr_clear_doorbell_queue_
case ACB_ADAPTER_TYPE_B: {
struct MessageUnit_B *reg = acb->pmuB;
/*clear interrupt and message state*/
- writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN,
reg->iop2drv_doorbell_reg);
- writel(ARCMSR_DRV2IOP_DATA_READ_OK,
reg->drv2iop_doorbell_reg);
+ writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN,
reg->iop2drv_doorbell);
+ writel(ARCMSR_DRV2IOP_DATA_READ_OK, reg->drv2iop_doorbell);
/* let IOP know data has been read */
}
break;
@@ -2109,7 +2411,7 @@ static void arcmsr_enable_eoi_mode(struc
case ACB_ADAPTER_TYPE_B:
{
struct MessageUnit_B *reg = acb->pmuB;
- writel(ARCMSR_MESSAGE_ACTIVE_EOI_MODE,
reg->drv2iop_doorbell_reg);
+ writel(ARCMSR_MESSAGE_ACTIVE_EOI_MODE,
reg->drv2iop_doorbell);
if(arcmsr_hbb_wait_msgint_ready(acb)) {
printk(KERN_NOTICE "ARCMSR IOP enables
EOI_MODE TIMEOUT");
return;
@@ -2120,15 +2422,62 @@ static void arcmsr_enable_eoi_mode(struc
return;
}

+static void arcmsr_hardware_reset(struct AdapterControlBlock *acb)
+{
+ uint8_t value[64];
+ int i;
+ struct MessageUnit_A __iomem *reg = acb->pmuA;
+
+ /* backup pci config data */
+ printk(KERN_ERR "arcmsr%d: executing hw bus reset .....\n",
acb->host->host_no);
+ for (i=0; i<64; i++) {
+ pci_read_config_byte(acb->pdev, i, &value[i]);
+ }
+ /* hardware reset signal */
+ if((acb->dev_id == 0x1680)){
+ writel(ARCMSR_ARC1680_BUS_RESET, &reg->reserved1[0]);
+ }else{
+ pci_write_config_byte(acb->pdev, 0x84, 0x20);
+ }
+ msleep(1000);
+ /* write back pci config data */
+ for (i=0;i<64;i++) {
+ pci_write_config_byte(acb->pdev, i, value[i]);
+ }
+ msleep(1000);
+ return;
+}
+/*
+***************************************************************************
*
+***************************************************************************
*
+*/
+int arcmsr_sleep_for_bus_reset(struct scsi_cmnd *cmd)
+{
+ struct Scsi_Host *shost = NULL;
+ int i, isleep;
+
+ shost = cmd->device->host;
+ isleep = sleeptime / 10;
+ if (isleep > 0) {
+ for (i = 0; i < isleep; i ++) {
+ msleep(10000);
+ }
+ }
+
+ isleep = sleeptime % 10;
+ if (isleep > 0) {
+ msleep(isleep*1000);
+ }
+ return 0;
+}
static void arcmsr_iop_init(struct AdapterControlBlock *acb)
{
uint32_t intmask_org;

- /* disable all outbound interrupt */
- intmask_org = arcmsr_disable_outbound_ints(acb);
+ /* disable all outbound interrupt */
+ intmask_org = arcmsr_disable_outbound_ints(acb);
arcmsr_wait_firmware_ready(acb);
arcmsr_iop_confirm(acb);
- arcmsr_get_firmware_spec(acb);
/*start background rebuild*/
arcmsr_start_adapter_bgrb(acb);
/* empty doorbell Qbuffer if door bell ringed */
@@ -2139,69 +2488,156 @@ static void arcmsr_iop_init(struct Adapt
acb->acb_flags |= ACB_F_IOP_INITED;
}

-static void arcmsr_iop_reset(struct AdapterControlBlock *acb)
+static uint8_t arcmsr_iop_reset(struct AdapterControlBlock *acb)
{
struct CommandControlBlock *ccb;
uint32_t intmask_org;
+ uint8_t rtnval = 0x00;
int i = 0;
-
if (atomic_read(&acb->ccboutstandingcount) != 0) {
- /* talk to iop 331 outstanding command aborted */
- arcmsr_abort_allcmd(acb);
-
- /* wait for 3 sec for all command aborted*/
- ssleep(3);
-
/* disable all outbound interrupt */
intmask_org = arcmsr_disable_outbound_ints(acb);
+ /* talk to iop 331 outstanding command aborted */
+ rtnval = arcmsr_abort_allcmd(acb);
/* clear all outbound posted Q */
arcmsr_done4abort_postqueue(acb);
for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
ccb = acb->pccb_pool[i];
if (ccb->startdone == ARCMSR_CCB_START) {
- ccb->startdone = ARCMSR_CCB_ABORTED;
- arcmsr_ccb_complete(ccb, 1);
+ arcmsr_ccb_complete(ccb);
}
}
+ atomic_set(&acb->ccboutstandingcount, 0);
/* enable all outbound interrupt */
arcmsr_enable_outbound_ints(acb, intmask_org);
+ return rtnval;
}
+ return rtnval;
}

static int arcmsr_bus_reset(struct scsi_cmnd *cmd)
{
struct AdapterControlBlock *acb =
(struct AdapterControlBlock *)cmd->device->host->hostdata;
- int i;
-
+ uint32_t intmask_org, outbound_doorbell;
+ int retry_count = 0;
+ int rtn = FAILED;
+
+ acb = (struct AdapterControlBlock *) cmd->device->host->hostdata;
+ printk(KERN_ERR "arcmsr: executing eh bus reset .....num_resets =
%d,
+ num_aborts = %d \n", acb->num_resets, acb->num_aborts);
acb->num_resets++;
- acb->acb_flags |= ACB_F_BUS_RESET;
- for (i = 0; i < 400; i++) {
- if (!atomic_read(&acb->ccboutstandingcount))
+
+ switch(acb->adapter_type){
+ case ACB_ADAPTER_TYPE_A:{
+ if(acb->acb_flags & ACB_F_BUS_RESET){
+ long timeout;
+ timeout = wait_event_timeout(wait_q,
+ (acb->acb_flags & ACB_F_BUS_RESET)
== 0, 220*HZ);
+ if(timeout){
+ return SUCCESS;
+ }
+ }
+ acb->acb_flags |= ACB_F_BUS_RESET;
+ if(arcmsr_iop_reset(acb)){
+ struct MessageUnit_A __iomem *reg;
+ reg = acb->pmuA;
+ arcmsr_hardware_reset(acb);
+ acb->acb_flags &= ~ACB_F_IOP_INITED;
+ sleep_again:
+ arcmsr_sleep_for_bus_reset(cmd);
+ if((readl(&reg->outbound_msgaddr1) &
ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0){
+ printk(KERN_ERR "arcmsr%d: waiting
for hw bus reset return,
+ retry=%d \n",
acb->host->host_no, retry_count);
+ if(retry_count > retrycount){
+ acb->fw_flag = FW_DEADLOCK;
+ printk(KERN_ERR "arcmsr%d:
waiting for hw bus reset return,
+ RETRY TERMINATED!!
\n", acb->host->host_no);
+ return FAILED;
+ }
+ retry_count++;
+ goto sleep_again;
+ }
+ acb->acb_flags |= ACB_F_IOP_INITED;
+ /* disable all outbound interrupt */
+ intmask_org =
arcmsr_disable_outbound_ints(acb);
+ arcmsr_get_firmware_spec(acb);
+ arcmsr_start_adapter_bgrb(acb);
+ /* clear Qbuffer if door bell ringed */
+ outbound_doorbell =
readl(&reg->outbound_doorbell);
+ writel(outbound_doorbell,
&reg->outbound_doorbell); /*clear interrupt */
+ writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK,
&reg->inbound_doorbell);
+ /* enable outbound Post Queue,outbound
doorbell Interrupt */
+ arcmsr_enable_outbound_ints(acb,
intmask_org);
+ atomic_set(&acb->rq_map_token, 16);
+ atomic_set(&acb->ante_token_value, 16);
+ acb->fw_flag = FW_NORMAL;
+ init_timer(&acb->eternal_timer);
+ acb->eternal_timer.expires = jiffies +
msecs_to_jiffies(6*HZ);
+ acb->eternal_timer.data = (unsigned long)
acb;
+ acb->eternal_timer.function =
&arcmsr_request_device_map;
+ add_timer(&acb->eternal_timer);
+ acb->acb_flags &= ~ACB_F_BUS_RESET;
+ rtn = SUCCESS;
+ printk(KERN_ERR "arcmsr: scsi eh bus reset
succeeds\n");
+ }else{
+ acb->acb_flags &= ~ACB_F_BUS_RESET;
+ if(atomic_read(&acb->rq_map_token) == 0){
+ atomic_set(&acb->rq_map_token, 16);
+ atomic_set(&acb->ante_token_value,
16);
+ acb->fw_flag = FW_NORMAL;
+ init_timer(&acb->eternal_timer);
+ acb->eternal_timer.expires =
jiffies + msecs_to_jiffies(6*HZ);
+ acb->eternal_timer.data = (unsigned
long) acb;
+ acb->eternal_timer.function =
&arcmsr_request_device_map;
+ add_timer(&acb->eternal_timer);
+ }else{
+ atomic_set(&acb->rq_map_token, 16);
+ atomic_set(&acb->ante_token_value,
16);
+ acb->fw_flag = FW_NORMAL;
+ mod_timer(&acb->eternal_timer,
jiffies + msecs_to_jiffies(6*HZ));
+ }
+ rtn = SUCCESS;
+ }
break;
- arcmsr_interrupt(acb);/* FIXME: need spinlock */
- msleep(25);
+ }
+ case ACB_ADAPTER_TYPE_B:{
+ acb->acb_flags |= ACB_F_BUS_RESET;
+ if(arcmsr_iop_reset(acb)){
+ acb->acb_flags &= ~ACB_F_BUS_RESET;
+ rtn = FAILED;
+ }else{
+ acb->acb_flags &= ~ACB_F_BUS_RESET;
+ if(atomic_read(&acb->rq_map_token) == 0){
+ atomic_set(&acb->rq_map_token, 16);
+ atomic_set(&acb->ante_token_value,
16);
+ acb->fw_flag = FW_NORMAL;
+ init_timer(&acb->eternal_timer);
+ acb->eternal_timer.expires =
jiffies + msecs_to_jiffies(6*HZ);
+ acb->eternal_timer.data = (unsigned
long) acb;
+ acb->eternal_timer.function =
&arcmsr_request_device_map;
+ add_timer(&acb->eternal_timer);
+ }else{
+ atomic_set(&acb->rq_map_token, 16);
+ atomic_set(&acb->ante_token_value,
16);
+ acb->fw_flag = FW_NORMAL;
+ mod_timer(&acb->eternal_timer,
jiffies + msecs_to_jiffies(6*HZ));
+ }
+ rtn = SUCCESS;
+ }
+ }
}
- arcmsr_iop_reset(acb);
- acb->acb_flags &= ~ACB_F_BUS_RESET;
- return SUCCESS;
+ return rtn;
}

-static void arcmsr_abort_one_cmd(struct AdapterControlBlock *acb,
+static int arcmsr_abort_one_cmd(struct AdapterControlBlock *acb,
struct CommandControlBlock *ccb)
{
- u32 intmask;
-
- ccb->startdone = ARCMSR_CCB_ABORTED;
-
- /*
- ** Wait for 3 sec for all command done.
- */
- ssleep(3);
-
- intmask = arcmsr_disable_outbound_ints(acb);
- arcmsr_polling_ccbdone(acb, ccb);
- arcmsr_enable_outbound_ints(acb, intmask);
+ int rtn;
+ spin_lock_irq(&acb->eh_lock);
+ rtn = arcmsr_polling_ccbdone(acb, ccb);
+ spin_unlock_irq(&acb->eh_lock);
+ return rtn;
}

static int arcmsr_abort(struct scsi_cmnd *cmd)
@@ -2209,10 +2645,12 @@ static int arcmsr_abort(struct scsi_cmnd
struct AdapterControlBlock *acb =
(struct AdapterControlBlock *)cmd->device->host->hostdata;
int i = 0;
+ int rtn = FAILED;

printk(KERN_NOTICE
"arcmsr%d: abort device command of scsi id = %d lun = %d
\n",
acb->host->host_no, cmd->device->id, cmd->device->lun);
+ acb->acb_flags |= ACB_F_ABORT;
acb->num_aborts++;
/*
************************************************
@@ -2221,17 +2659,20 @@ static int arcmsr_abort(struct scsi_cmnd
************************************************
*/
if (!atomic_read(&acb->ccboutstandingcount))
- return SUCCESS;
+ return rtn;

for (i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++) {
+ printk("%s: loop %d\n", __FUNCTION__, i);
struct CommandControlBlock *ccb = acb->pccb_pool[i];
if (ccb->startdone == ARCMSR_CCB_START && ccb->pcmd == cmd)
{
- arcmsr_abort_one_cmd(acb, ccb);
+ ccb->startdone = ARCMSR_CCB_ABORTED;
+ rtn = arcmsr_abort_one_cmd(acb, ccb);
break;
}
}
-
- return SUCCESS;
+ acb->acb_flags &= ~ACB_F_ABORT;
+ printk("%s: leaving\n", __FUNCTION__);
+ return rtn;
}

static const char *arcmsr_info(struct Scsi_Host *host)
@@ -2336,7 +2777,7 @@ static void arcmsr_pci_ers_need_reset_fo
ccb = acb->pccb_pool[i];
if (ccb->startdone == ARCMSR_CCB_START) {
ccb->startdone = ARCMSR_CCB_ABORTED;
- arcmsr_ccb_complete(ccb, 1);
+ arcmsr_ccb_complete(ccb);
}
}
/* enable all outbound interrupt */

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