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3549 lines
91 KiB
3549 lines
91 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
|
/*************************************************************************** |
|
dpti.c - description |
|
------------------- |
|
begin : Thu Sep 7 2000 |
|
copyright : (C) 2000 by Adaptec |
|
|
|
July 30, 2001 First version being submitted |
|
for inclusion in the kernel. V2.4 |
|
|
|
See Documentation/scsi/dpti.rst for history, notes, license info |
|
and credits |
|
***************************************************************************/ |
|
|
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/*************************************************************************** |
|
* * |
|
* * |
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***************************************************************************/ |
|
/*************************************************************************** |
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* Sat Dec 20 2003 Go Taniguchi <[email protected]> |
|
- Support 2.6 kernel and DMA-mapping |
|
- ioctl fix for raid tools |
|
- use schedule_timeout in long long loop |
|
**************************************************************************/ |
|
|
|
/*#define DEBUG 1 */ |
|
/*#define UARTDELAY 1 */ |
|
|
|
#include <linux/module.h> |
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#include <linux/pgtable.h> |
|
|
|
MODULE_AUTHOR("Deanna Bonds, with _lots_ of help from Mark Salyzyn"); |
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MODULE_DESCRIPTION("Adaptec I2O RAID Driver"); |
|
|
|
//////////////////////////////////////////////////////////////// |
|
|
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#include <linux/ioctl.h> /* For SCSI-Passthrough */ |
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#include <linux/uaccess.h> |
|
|
|
#include <linux/stat.h> |
|
#include <linux/slab.h> /* for kmalloc() */ |
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#include <linux/pci.h> /* for PCI support */ |
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#include <linux/proc_fs.h> |
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#include <linux/blkdev.h> |
|
#include <linux/delay.h> /* for udelay */ |
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#include <linux/interrupt.h> |
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#include <linux/kernel.h> /* for printk */ |
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#include <linux/sched.h> |
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#include <linux/reboot.h> |
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#include <linux/spinlock.h> |
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#include <linux/dma-mapping.h> |
|
|
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#include <linux/timer.h> |
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#include <linux/string.h> |
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#include <linux/ioport.h> |
|
#include <linux/mutex.h> |
|
|
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#include <asm/processor.h> /* for boot_cpu_data */ |
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#include <asm/io.h> /* for virt_to_bus, etc. */ |
|
|
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#include <scsi/scsi.h> |
|
#include <scsi/scsi_cmnd.h> |
|
#include <scsi/scsi_device.h> |
|
#include <scsi/scsi_host.h> |
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#include <scsi/scsi_tcq.h> |
|
|
|
#include "dpt/dptsig.h" |
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#include "dpti.h" |
|
|
|
/*============================================================================ |
|
* Create a binary signature - this is read by dptsig |
|
* Needed for our management apps |
|
*============================================================================ |
|
*/ |
|
static DEFINE_MUTEX(adpt_mutex); |
|
static dpt_sig_S DPTI_sig = { |
|
{'d', 'P', 't', 'S', 'i', 'G'}, SIG_VERSION, |
|
#ifdef __i386__ |
|
PROC_INTEL, PROC_386 | PROC_486 | PROC_PENTIUM | PROC_SEXIUM, |
|
#elif defined(__ia64__) |
|
PROC_INTEL, PROC_IA64, |
|
#elif defined(__sparc__) |
|
PROC_ULTRASPARC, PROC_ULTRASPARC, |
|
#elif defined(__alpha__) |
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PROC_ALPHA, PROC_ALPHA, |
|
#else |
|
(-1),(-1), |
|
#endif |
|
FT_HBADRVR, 0, OEM_DPT, OS_LINUX, CAP_OVERLAP, DEV_ALL, |
|
ADF_ALL_SC5, 0, 0, DPT_VERSION, DPT_REVISION, DPT_SUBREVISION, |
|
DPT_MONTH, DPT_DAY, DPT_YEAR, "Adaptec Linux I2O RAID Driver" |
|
}; |
|
|
|
|
|
|
|
|
|
/*============================================================================ |
|
* Globals |
|
*============================================================================ |
|
*/ |
|
|
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static DEFINE_MUTEX(adpt_configuration_lock); |
|
|
|
static struct i2o_sys_tbl *sys_tbl; |
|
static dma_addr_t sys_tbl_pa; |
|
static int sys_tbl_ind; |
|
static int sys_tbl_len; |
|
|
|
static adpt_hba* hba_chain = NULL; |
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static int hba_count = 0; |
|
|
|
static struct class *adpt_sysfs_class; |
|
|
|
static long adpt_unlocked_ioctl(struct file *, unsigned int, unsigned long); |
|
#ifdef CONFIG_COMPAT |
|
static long compat_adpt_ioctl(struct file *, unsigned int, unsigned long); |
|
#endif |
|
|
|
static const struct file_operations adpt_fops = { |
|
.unlocked_ioctl = adpt_unlocked_ioctl, |
|
.open = adpt_open, |
|
.release = adpt_close, |
|
#ifdef CONFIG_COMPAT |
|
.compat_ioctl = compat_adpt_ioctl, |
|
#endif |
|
.llseek = noop_llseek, |
|
}; |
|
|
|
/* Structures and definitions for synchronous message posting. |
|
* See adpt_i2o_post_wait() for description |
|
* */ |
|
struct adpt_i2o_post_wait_data |
|
{ |
|
int status; |
|
u32 id; |
|
adpt_wait_queue_head_t *wq; |
|
struct adpt_i2o_post_wait_data *next; |
|
}; |
|
|
|
static struct adpt_i2o_post_wait_data *adpt_post_wait_queue = NULL; |
|
static u32 adpt_post_wait_id = 0; |
|
static DEFINE_SPINLOCK(adpt_post_wait_lock); |
|
|
|
|
|
/*============================================================================ |
|
* Functions |
|
*============================================================================ |
|
*/ |
|
|
|
static inline int dpt_dma64(adpt_hba *pHba) |
|
{ |
|
return (sizeof(dma_addr_t) > 4 && (pHba)->dma64); |
|
} |
|
|
|
static inline u32 dma_high(dma_addr_t addr) |
|
{ |
|
return upper_32_bits(addr); |
|
} |
|
|
|
static inline u32 dma_low(dma_addr_t addr) |
|
{ |
|
return (u32)addr; |
|
} |
|
|
|
static u8 adpt_read_blink_led(adpt_hba* host) |
|
{ |
|
if (host->FwDebugBLEDflag_P) { |
|
if( readb(host->FwDebugBLEDflag_P) == 0xbc ){ |
|
return readb(host->FwDebugBLEDvalue_P); |
|
} |
|
} |
|
return 0; |
|
} |
|
|
|
/*============================================================================ |
|
* Scsi host template interface functions |
|
*============================================================================ |
|
*/ |
|
|
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#ifdef MODULE |
|
static struct pci_device_id dptids[] = { |
|
{ PCI_DPT_VENDOR_ID, PCI_DPT_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,}, |
|
{ PCI_DPT_VENDOR_ID, PCI_DPT_RAPTOR_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,}, |
|
{ 0, } |
|
}; |
|
#endif |
|
|
|
MODULE_DEVICE_TABLE(pci,dptids); |
|
|
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static int adpt_detect(struct scsi_host_template* sht) |
|
{ |
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struct pci_dev *pDev = NULL; |
|
adpt_hba *pHba; |
|
adpt_hba *next; |
|
|
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PINFO("Detecting Adaptec I2O RAID controllers...\n"); |
|
|
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/* search for all Adatpec I2O RAID cards */ |
|
while ((pDev = pci_get_device( PCI_DPT_VENDOR_ID, PCI_ANY_ID, pDev))) { |
|
if(pDev->device == PCI_DPT_DEVICE_ID || |
|
pDev->device == PCI_DPT_RAPTOR_DEVICE_ID){ |
|
if(adpt_install_hba(sht, pDev) ){ |
|
PERROR("Could not Init an I2O RAID device\n"); |
|
PERROR("Will not try to detect others.\n"); |
|
return hba_count-1; |
|
} |
|
pci_dev_get(pDev); |
|
} |
|
} |
|
|
|
/* In INIT state, Activate IOPs */ |
|
for (pHba = hba_chain; pHba; pHba = next) { |
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next = pHba->next; |
|
// Activate does get status , init outbound, and get hrt |
|
if (adpt_i2o_activate_hba(pHba) < 0) { |
|
adpt_i2o_delete_hba(pHba); |
|
} |
|
} |
|
|
|
|
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/* Active IOPs in HOLD state */ |
|
|
|
rebuild_sys_tab: |
|
if (hba_chain == NULL) |
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return 0; |
|
|
|
/* |
|
* If build_sys_table fails, we kill everything and bail |
|
* as we can't init the IOPs w/o a system table |
|
*/ |
|
if (adpt_i2o_build_sys_table() < 0) { |
|
adpt_i2o_sys_shutdown(); |
|
return 0; |
|
} |
|
|
|
PDEBUG("HBA's in HOLD state\n"); |
|
|
|
/* If IOP don't get online, we need to rebuild the System table */ |
|
for (pHba = hba_chain; pHba; pHba = pHba->next) { |
|
if (adpt_i2o_online_hba(pHba) < 0) { |
|
adpt_i2o_delete_hba(pHba); |
|
goto rebuild_sys_tab; |
|
} |
|
} |
|
|
|
/* Active IOPs now in OPERATIONAL state */ |
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PDEBUG("HBA's in OPERATIONAL state\n"); |
|
|
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printk("dpti: If you have a lot of devices this could take a few minutes.\n"); |
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for (pHba = hba_chain; pHba; pHba = next) { |
|
next = pHba->next; |
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printk(KERN_INFO"%s: Reading the hardware resource table.\n", pHba->name); |
|
if (adpt_i2o_lct_get(pHba) < 0){ |
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adpt_i2o_delete_hba(pHba); |
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continue; |
|
} |
|
|
|
if (adpt_i2o_parse_lct(pHba) < 0){ |
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adpt_i2o_delete_hba(pHba); |
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continue; |
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} |
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adpt_inquiry(pHba); |
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} |
|
|
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adpt_sysfs_class = class_create(THIS_MODULE, "dpt_i2o"); |
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if (IS_ERR(adpt_sysfs_class)) { |
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printk(KERN_WARNING"dpti: unable to create dpt_i2o class\n"); |
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adpt_sysfs_class = NULL; |
|
} |
|
|
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for (pHba = hba_chain; pHba; pHba = next) { |
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next = pHba->next; |
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if (adpt_scsi_host_alloc(pHba, sht) < 0){ |
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adpt_i2o_delete_hba(pHba); |
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continue; |
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} |
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pHba->initialized = TRUE; |
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pHba->state &= ~DPTI_STATE_RESET; |
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if (adpt_sysfs_class) { |
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struct device *dev = device_create(adpt_sysfs_class, |
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NULL, MKDEV(DPTI_I2O_MAJOR, pHba->unit), NULL, |
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"dpti%d", pHba->unit); |
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if (IS_ERR(dev)) { |
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printk(KERN_WARNING"dpti%d: unable to " |
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"create device in dpt_i2o class\n", |
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pHba->unit); |
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} |
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} |
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} |
|
|
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// Register our control device node |
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// nodes will need to be created in /dev to access this |
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// the nodes can not be created from within the driver |
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if (hba_count && register_chrdev(DPTI_I2O_MAJOR, DPT_DRIVER, &adpt_fops)) { |
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adpt_i2o_sys_shutdown(); |
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return 0; |
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} |
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return hba_count; |
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} |
|
|
|
|
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static void adpt_release(adpt_hba *pHba) |
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{ |
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struct Scsi_Host *shost = pHba->host; |
|
|
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scsi_remove_host(shost); |
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// adpt_i2o_quiesce_hba(pHba); |
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adpt_i2o_delete_hba(pHba); |
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scsi_host_put(shost); |
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} |
|
|
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|
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static void adpt_inquiry(adpt_hba* pHba) |
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{ |
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u32 msg[17]; |
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u32 *mptr; |
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u32 *lenptr; |
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int direction; |
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int scsidir; |
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u32 len; |
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u32 reqlen; |
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u8* buf; |
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dma_addr_t addr; |
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u8 scb[16]; |
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s32 rcode; |
|
|
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memset(msg, 0, sizeof(msg)); |
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buf = dma_alloc_coherent(&pHba->pDev->dev, 80, &addr, GFP_KERNEL); |
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if(!buf){ |
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printk(KERN_ERR"%s: Could not allocate buffer\n",pHba->name); |
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return; |
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} |
|
memset((void*)buf, 0, 36); |
|
|
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len = 36; |
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direction = 0x00000000; |
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scsidir =0x40000000; // DATA IN (iop<--dev) |
|
|
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if (dpt_dma64(pHba)) |
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reqlen = 17; // SINGLE SGE, 64 bit |
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else |
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reqlen = 14; // SINGLE SGE, 32 bit |
|
/* Stick the headers on */ |
|
msg[0] = reqlen<<16 | SGL_OFFSET_12; |
|
msg[1] = (0xff<<24|HOST_TID<<12|ADAPTER_TID); |
|
msg[2] = 0; |
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msg[3] = 0; |
|
// Adaptec/DPT Private stuff |
|
msg[4] = I2O_CMD_SCSI_EXEC|DPT_ORGANIZATION_ID<<16; |
|
msg[5] = ADAPTER_TID | 1<<16 /* Interpret*/; |
|
/* Direction, disconnect ok | sense data | simple queue , CDBLen */ |
|
// I2O_SCB_FLAG_ENABLE_DISCONNECT | |
|
// I2O_SCB_FLAG_SIMPLE_QUEUE_TAG | |
|
// I2O_SCB_FLAG_SENSE_DATA_IN_MESSAGE; |
|
msg[6] = scsidir|0x20a00000| 6 /* cmd len*/; |
|
|
|
mptr=msg+7; |
|
|
|
memset(scb, 0, sizeof(scb)); |
|
// Write SCSI command into the message - always 16 byte block |
|
scb[0] = INQUIRY; |
|
scb[1] = 0; |
|
scb[2] = 0; |
|
scb[3] = 0; |
|
scb[4] = 36; |
|
scb[5] = 0; |
|
// Don't care about the rest of scb |
|
|
|
memcpy(mptr, scb, sizeof(scb)); |
|
mptr+=4; |
|
lenptr=mptr++; /* Remember me - fill in when we know */ |
|
|
|
/* Now fill in the SGList and command */ |
|
*lenptr = len; |
|
if (dpt_dma64(pHba)) { |
|
*mptr++ = (0x7C<<24)+(2<<16)+0x02; /* Enable 64 bit */ |
|
*mptr++ = 1 << PAGE_SHIFT; |
|
*mptr++ = 0xD0000000|direction|len; |
|
*mptr++ = dma_low(addr); |
|
*mptr++ = dma_high(addr); |
|
} else { |
|
*mptr++ = 0xD0000000|direction|len; |
|
*mptr++ = addr; |
|
} |
|
|
|
// Send it on it's way |
|
rcode = adpt_i2o_post_wait(pHba, msg, reqlen<<2, 120); |
|
if (rcode != 0) { |
|
sprintf(pHba->detail, "Adaptec I2O RAID"); |
|
printk(KERN_INFO "%s: Inquiry Error (%d)\n",pHba->name,rcode); |
|
if (rcode != -ETIME && rcode != -EINTR) |
|
dma_free_coherent(&pHba->pDev->dev, 80, buf, addr); |
|
} else { |
|
memset(pHba->detail, 0, sizeof(pHba->detail)); |
|
memcpy(&(pHba->detail), "Vendor: Adaptec ", 16); |
|
memcpy(&(pHba->detail[16]), " Model: ", 8); |
|
memcpy(&(pHba->detail[24]), (u8*) &buf[16], 16); |
|
memcpy(&(pHba->detail[40]), " FW: ", 4); |
|
memcpy(&(pHba->detail[44]), (u8*) &buf[32], 4); |
|
pHba->detail[48] = '\0'; /* precautionary */ |
|
dma_free_coherent(&pHba->pDev->dev, 80, buf, addr); |
|
} |
|
adpt_i2o_status_get(pHba); |
|
return ; |
|
} |
|
|
|
|
|
static int adpt_slave_configure(struct scsi_device * device) |
|
{ |
|
struct Scsi_Host *host = device->host; |
|
|
|
if (host->can_queue && device->tagged_supported) { |
|
scsi_change_queue_depth(device, |
|
host->can_queue - 1); |
|
} |
|
return 0; |
|
} |
|
|
|
static int adpt_queue_lck(struct scsi_cmnd * cmd, void (*done) (struct scsi_cmnd *)) |
|
{ |
|
adpt_hba* pHba = NULL; |
|
struct adpt_device* pDev = NULL; /* dpt per device information */ |
|
|
|
cmd->scsi_done = done; |
|
/* |
|
* SCSI REQUEST_SENSE commands will be executed automatically by the |
|
* Host Adapter for any errors, so they should not be executed |
|
* explicitly unless the Sense Data is zero indicating that no error |
|
* occurred. |
|
*/ |
|
|
|
if ((cmd->cmnd[0] == REQUEST_SENSE) && (cmd->sense_buffer[0] != 0)) { |
|
cmd->result = (DID_OK << 16); |
|
cmd->scsi_done(cmd); |
|
return 0; |
|
} |
|
|
|
pHba = (adpt_hba*)cmd->device->host->hostdata[0]; |
|
if (!pHba) { |
|
return FAILED; |
|
} |
|
|
|
rmb(); |
|
if ((pHba->state) & DPTI_STATE_RESET) |
|
return SCSI_MLQUEUE_HOST_BUSY; |
|
|
|
// TODO if the cmd->device if offline then I may need to issue a bus rescan |
|
// followed by a get_lct to see if the device is there anymore |
|
if((pDev = (struct adpt_device*) (cmd->device->hostdata)) == NULL) { |
|
/* |
|
* First command request for this device. Set up a pointer |
|
* to the device structure. This should be a TEST_UNIT_READY |
|
* command from scan_scsis_single. |
|
*/ |
|
if ((pDev = adpt_find_device(pHba, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun)) == NULL) { |
|
// TODO: if any luns are at this bus, scsi id then fake a TEST_UNIT_READY and INQUIRY response |
|
// with type 7F (for all luns less than the max for this bus,id) so the lun scan will continue. |
|
cmd->result = (DID_NO_CONNECT << 16); |
|
cmd->scsi_done(cmd); |
|
return 0; |
|
} |
|
cmd->device->hostdata = pDev; |
|
} |
|
pDev->pScsi_dev = cmd->device; |
|
|
|
/* |
|
* If we are being called from when the device is being reset, |
|
* delay processing of the command until later. |
|
*/ |
|
if (pDev->state & DPTI_DEV_RESET ) { |
|
return FAILED; |
|
} |
|
return adpt_scsi_to_i2o(pHba, cmd, pDev); |
|
} |
|
|
|
static DEF_SCSI_QCMD(adpt_queue) |
|
|
|
static int adpt_bios_param(struct scsi_device *sdev, struct block_device *dev, |
|
sector_t capacity, int geom[]) |
|
{ |
|
int heads=-1; |
|
int sectors=-1; |
|
int cylinders=-1; |
|
|
|
// *** First lets set the default geometry **** |
|
|
|
// If the capacity is less than ox2000 |
|
if (capacity < 0x2000 ) { // floppy |
|
heads = 18; |
|
sectors = 2; |
|
} |
|
// else if between 0x2000 and 0x20000 |
|
else if (capacity < 0x20000) { |
|
heads = 64; |
|
sectors = 32; |
|
} |
|
// else if between 0x20000 and 0x40000 |
|
else if (capacity < 0x40000) { |
|
heads = 65; |
|
sectors = 63; |
|
} |
|
// else if between 0x4000 and 0x80000 |
|
else if (capacity < 0x80000) { |
|
heads = 128; |
|
sectors = 63; |
|
} |
|
// else if greater than 0x80000 |
|
else { |
|
heads = 255; |
|
sectors = 63; |
|
} |
|
cylinders = sector_div(capacity, heads * sectors); |
|
|
|
// Special case if CDROM |
|
if(sdev->type == 5) { // CDROM |
|
heads = 252; |
|
sectors = 63; |
|
cylinders = 1111; |
|
} |
|
|
|
geom[0] = heads; |
|
geom[1] = sectors; |
|
geom[2] = cylinders; |
|
|
|
PDEBUG("adpt_bios_param: exit\n"); |
|
return 0; |
|
} |
|
|
|
|
|
static const char *adpt_info(struct Scsi_Host *host) |
|
{ |
|
adpt_hba* pHba; |
|
|
|
pHba = (adpt_hba *) host->hostdata[0]; |
|
return (char *) (pHba->detail); |
|
} |
|
|
|
static int adpt_show_info(struct seq_file *m, struct Scsi_Host *host) |
|
{ |
|
struct adpt_device* d; |
|
int id; |
|
int chan; |
|
adpt_hba* pHba; |
|
int unit; |
|
|
|
// Find HBA (host bus adapter) we are looking for |
|
mutex_lock(&adpt_configuration_lock); |
|
for (pHba = hba_chain; pHba; pHba = pHba->next) { |
|
if (pHba->host == host) { |
|
break; /* found adapter */ |
|
} |
|
} |
|
mutex_unlock(&adpt_configuration_lock); |
|
if (pHba == NULL) { |
|
return 0; |
|
} |
|
host = pHba->host; |
|
|
|
seq_printf(m, "Adaptec I2O RAID Driver Version: %s\n\n", DPT_I2O_VERSION); |
|
seq_printf(m, "%s\n", pHba->detail); |
|
seq_printf(m, "SCSI Host=scsi%d Control Node=/dev/%s irq=%d\n", |
|
pHba->host->host_no, pHba->name, host->irq); |
|
seq_printf(m, "\tpost fifo size = %d\n\treply fifo size = %d\n\tsg table size = %d\n\n", |
|
host->can_queue, (int) pHba->reply_fifo_size , host->sg_tablesize); |
|
|
|
seq_puts(m, "Devices:\n"); |
|
for(chan = 0; chan < MAX_CHANNEL; chan++) { |
|
for(id = 0; id < MAX_ID; id++) { |
|
d = pHba->channel[chan].device[id]; |
|
while(d) { |
|
seq_printf(m,"\t%-24.24s", d->pScsi_dev->vendor); |
|
seq_printf(m," Rev: %-8.8s\n", d->pScsi_dev->rev); |
|
|
|
unit = d->pI2o_dev->lct_data.tid; |
|
seq_printf(m, "\tTID=%d, (Channel=%d, Target=%d, Lun=%llu) (%s)\n\n", |
|
unit, (int)d->scsi_channel, (int)d->scsi_id, d->scsi_lun, |
|
scsi_device_online(d->pScsi_dev)? "online":"offline"); |
|
d = d->next_lun; |
|
} |
|
} |
|
} |
|
return 0; |
|
} |
|
|
|
/* |
|
* Turn a pointer to ioctl reply data into an u32 'context' |
|
*/ |
|
static u32 adpt_ioctl_to_context(adpt_hba * pHba, void *reply) |
|
{ |
|
#if BITS_PER_LONG == 32 |
|
return (u32)(unsigned long)reply; |
|
#else |
|
ulong flags = 0; |
|
u32 nr, i; |
|
|
|
spin_lock_irqsave(pHba->host->host_lock, flags); |
|
nr = ARRAY_SIZE(pHba->ioctl_reply_context); |
|
for (i = 0; i < nr; i++) { |
|
if (pHba->ioctl_reply_context[i] == NULL) { |
|
pHba->ioctl_reply_context[i] = reply; |
|
break; |
|
} |
|
} |
|
spin_unlock_irqrestore(pHba->host->host_lock, flags); |
|
if (i >= nr) { |
|
printk(KERN_WARNING"%s: Too many outstanding " |
|
"ioctl commands\n", pHba->name); |
|
return (u32)-1; |
|
} |
|
|
|
return i; |
|
#endif |
|
} |
|
|
|
/* |
|
* Go from an u32 'context' to a pointer to ioctl reply data. |
|
*/ |
|
static void *adpt_ioctl_from_context(adpt_hba *pHba, u32 context) |
|
{ |
|
#if BITS_PER_LONG == 32 |
|
return (void *)(unsigned long)context; |
|
#else |
|
void *p = pHba->ioctl_reply_context[context]; |
|
pHba->ioctl_reply_context[context] = NULL; |
|
|
|
return p; |
|
#endif |
|
} |
|
|
|
/*=========================================================================== |
|
* Error Handling routines |
|
*=========================================================================== |
|
*/ |
|
|
|
static int adpt_abort(struct scsi_cmnd * cmd) |
|
{ |
|
adpt_hba* pHba = NULL; /* host bus adapter structure */ |
|
struct adpt_device* dptdevice; /* dpt per device information */ |
|
u32 msg[5]; |
|
int rcode; |
|
|
|
pHba = (adpt_hba*) cmd->device->host->hostdata[0]; |
|
printk(KERN_INFO"%s: Trying to Abort\n",pHba->name); |
|
if ((dptdevice = (void*) (cmd->device->hostdata)) == NULL) { |
|
printk(KERN_ERR "%s: Unable to abort: No device in cmnd\n",pHba->name); |
|
return FAILED; |
|
} |
|
|
|
memset(msg, 0, sizeof(msg)); |
|
msg[0] = FIVE_WORD_MSG_SIZE|SGL_OFFSET_0; |
|
msg[1] = I2O_CMD_SCSI_ABORT<<24|HOST_TID<<12|dptdevice->tid; |
|
msg[2] = 0; |
|
msg[3]= 0; |
|
/* Add 1 to avoid firmware treating it as invalid command */ |
|
msg[4] = cmd->request->tag + 1; |
|
if (pHba->host) |
|
spin_lock_irq(pHba->host->host_lock); |
|
rcode = adpt_i2o_post_wait(pHba, msg, sizeof(msg), FOREVER); |
|
if (pHba->host) |
|
spin_unlock_irq(pHba->host->host_lock); |
|
if (rcode != 0) { |
|
if(rcode == -EOPNOTSUPP ){ |
|
printk(KERN_INFO"%s: Abort cmd not supported\n",pHba->name); |
|
return FAILED; |
|
} |
|
printk(KERN_INFO"%s: Abort failed.\n",pHba->name); |
|
return FAILED; |
|
} |
|
printk(KERN_INFO"%s: Abort complete.\n",pHba->name); |
|
return SUCCESS; |
|
} |
|
|
|
|
|
#define I2O_DEVICE_RESET 0x27 |
|
// This is the same for BLK and SCSI devices |
|
// NOTE this is wrong in the i2o.h definitions |
|
// This is not currently supported by our adapter but we issue it anyway |
|
static int adpt_device_reset(struct scsi_cmnd* cmd) |
|
{ |
|
adpt_hba* pHba; |
|
u32 msg[4]; |
|
u32 rcode; |
|
int old_state; |
|
struct adpt_device* d = cmd->device->hostdata; |
|
|
|
pHba = (void*) cmd->device->host->hostdata[0]; |
|
printk(KERN_INFO"%s: Trying to reset device\n",pHba->name); |
|
if (!d) { |
|
printk(KERN_INFO"%s: Reset Device: Device Not found\n",pHba->name); |
|
return FAILED; |
|
} |
|
memset(msg, 0, sizeof(msg)); |
|
msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0; |
|
msg[1] = (I2O_DEVICE_RESET<<24|HOST_TID<<12|d->tid); |
|
msg[2] = 0; |
|
msg[3] = 0; |
|
|
|
if (pHba->host) |
|
spin_lock_irq(pHba->host->host_lock); |
|
old_state = d->state; |
|
d->state |= DPTI_DEV_RESET; |
|
rcode = adpt_i2o_post_wait(pHba, msg,sizeof(msg), FOREVER); |
|
d->state = old_state; |
|
if (pHba->host) |
|
spin_unlock_irq(pHba->host->host_lock); |
|
if (rcode != 0) { |
|
if(rcode == -EOPNOTSUPP ){ |
|
printk(KERN_INFO"%s: Device reset not supported\n",pHba->name); |
|
return FAILED; |
|
} |
|
printk(KERN_INFO"%s: Device reset failed\n",pHba->name); |
|
return FAILED; |
|
} else { |
|
printk(KERN_INFO"%s: Device reset successful\n",pHba->name); |
|
return SUCCESS; |
|
} |
|
} |
|
|
|
|
|
#define I2O_HBA_BUS_RESET 0x87 |
|
// This version of bus reset is called by the eh_error handler |
|
static int adpt_bus_reset(struct scsi_cmnd* cmd) |
|
{ |
|
adpt_hba* pHba; |
|
u32 msg[4]; |
|
u32 rcode; |
|
|
|
pHba = (adpt_hba*)cmd->device->host->hostdata[0]; |
|
memset(msg, 0, sizeof(msg)); |
|
printk(KERN_WARNING"%s: Bus reset: SCSI Bus %d: tid: %d\n",pHba->name, cmd->device->channel,pHba->channel[cmd->device->channel].tid ); |
|
msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0; |
|
msg[1] = (I2O_HBA_BUS_RESET<<24|HOST_TID<<12|pHba->channel[cmd->device->channel].tid); |
|
msg[2] = 0; |
|
msg[3] = 0; |
|
if (pHba->host) |
|
spin_lock_irq(pHba->host->host_lock); |
|
rcode = adpt_i2o_post_wait(pHba, msg,sizeof(msg), FOREVER); |
|
if (pHba->host) |
|
spin_unlock_irq(pHba->host->host_lock); |
|
if (rcode != 0) { |
|
printk(KERN_WARNING"%s: Bus reset failed.\n",pHba->name); |
|
return FAILED; |
|
} else { |
|
printk(KERN_WARNING"%s: Bus reset success.\n",pHba->name); |
|
return SUCCESS; |
|
} |
|
} |
|
|
|
// This version of reset is called by the eh_error_handler |
|
static int __adpt_reset(struct scsi_cmnd* cmd) |
|
{ |
|
adpt_hba* pHba; |
|
int rcode; |
|
char name[32]; |
|
|
|
pHba = (adpt_hba*)cmd->device->host->hostdata[0]; |
|
strncpy(name, pHba->name, sizeof(name)); |
|
printk(KERN_WARNING"%s: Hba Reset: scsi id %d: tid: %d\n", name, cmd->device->channel, pHba->channel[cmd->device->channel].tid); |
|
rcode = adpt_hba_reset(pHba); |
|
if(rcode == 0){ |
|
printk(KERN_WARNING"%s: HBA reset complete\n", name); |
|
return SUCCESS; |
|
} else { |
|
printk(KERN_WARNING"%s: HBA reset failed (%x)\n", name, rcode); |
|
return FAILED; |
|
} |
|
} |
|
|
|
static int adpt_reset(struct scsi_cmnd* cmd) |
|
{ |
|
int rc; |
|
|
|
spin_lock_irq(cmd->device->host->host_lock); |
|
rc = __adpt_reset(cmd); |
|
spin_unlock_irq(cmd->device->host->host_lock); |
|
|
|
return rc; |
|
} |
|
|
|
// This version of reset is called by the ioctls and indirectly from eh_error_handler via adpt_reset |
|
static int adpt_hba_reset(adpt_hba* pHba) |
|
{ |
|
int rcode; |
|
|
|
pHba->state |= DPTI_STATE_RESET; |
|
|
|
// Activate does get status , init outbound, and get hrt |
|
if ((rcode=adpt_i2o_activate_hba(pHba)) < 0) { |
|
printk(KERN_ERR "%s: Could not activate\n", pHba->name); |
|
adpt_i2o_delete_hba(pHba); |
|
return rcode; |
|
} |
|
|
|
if ((rcode=adpt_i2o_build_sys_table()) < 0) { |
|
adpt_i2o_delete_hba(pHba); |
|
return rcode; |
|
} |
|
PDEBUG("%s: in HOLD state\n",pHba->name); |
|
|
|
if ((rcode=adpt_i2o_online_hba(pHba)) < 0) { |
|
adpt_i2o_delete_hba(pHba); |
|
return rcode; |
|
} |
|
PDEBUG("%s: in OPERATIONAL state\n",pHba->name); |
|
|
|
if ((rcode=adpt_i2o_lct_get(pHba)) < 0){ |
|
adpt_i2o_delete_hba(pHba); |
|
return rcode; |
|
} |
|
|
|
if ((rcode=adpt_i2o_reparse_lct(pHba)) < 0){ |
|
adpt_i2o_delete_hba(pHba); |
|
return rcode; |
|
} |
|
pHba->state &= ~DPTI_STATE_RESET; |
|
|
|
scsi_host_complete_all_commands(pHba->host, DID_RESET); |
|
return 0; /* return success */ |
|
} |
|
|
|
/*=========================================================================== |
|
* |
|
*=========================================================================== |
|
*/ |
|
|
|
|
|
static void adpt_i2o_sys_shutdown(void) |
|
{ |
|
adpt_hba *pHba, *pNext; |
|
struct adpt_i2o_post_wait_data *p1, *old; |
|
|
|
printk(KERN_INFO "Shutting down Adaptec I2O controllers.\n"); |
|
printk(KERN_INFO " This could take a few minutes if there are many devices attached\n"); |
|
/* Delete all IOPs from the controller chain */ |
|
/* They should have already been released by the |
|
* scsi-core |
|
*/ |
|
for (pHba = hba_chain; pHba; pHba = pNext) { |
|
pNext = pHba->next; |
|
adpt_i2o_delete_hba(pHba); |
|
} |
|
|
|
/* Remove any timedout entries from the wait queue. */ |
|
// spin_lock_irqsave(&adpt_post_wait_lock, flags); |
|
/* Nothing should be outstanding at this point so just |
|
* free them |
|
*/ |
|
for(p1 = adpt_post_wait_queue; p1;) { |
|
old = p1; |
|
p1 = p1->next; |
|
kfree(old); |
|
} |
|
// spin_unlock_irqrestore(&adpt_post_wait_lock, flags); |
|
adpt_post_wait_queue = NULL; |
|
|
|
printk(KERN_INFO "Adaptec I2O controllers down.\n"); |
|
} |
|
|
|
static int adpt_install_hba(struct scsi_host_template* sht, struct pci_dev* pDev) |
|
{ |
|
|
|
adpt_hba* pHba = NULL; |
|
adpt_hba* p = NULL; |
|
ulong base_addr0_phys = 0; |
|
ulong base_addr1_phys = 0; |
|
u32 hba_map0_area_size = 0; |
|
u32 hba_map1_area_size = 0; |
|
void __iomem *base_addr_virt = NULL; |
|
void __iomem *msg_addr_virt = NULL; |
|
int dma64 = 0; |
|
|
|
int raptorFlag = FALSE; |
|
|
|
if(pci_enable_device(pDev)) { |
|
return -EINVAL; |
|
} |
|
|
|
if (pci_request_regions(pDev, "dpt_i2o")) { |
|
PERROR("dpti: adpt_config_hba: pci request region failed\n"); |
|
return -EINVAL; |
|
} |
|
|
|
pci_set_master(pDev); |
|
|
|
/* |
|
* See if we should enable dma64 mode. |
|
*/ |
|
if (sizeof(dma_addr_t) > 4 && |
|
dma_get_required_mask(&pDev->dev) > DMA_BIT_MASK(32) && |
|
dma_set_mask(&pDev->dev, DMA_BIT_MASK(64)) == 0) |
|
dma64 = 1; |
|
|
|
if (!dma64 && dma_set_mask(&pDev->dev, DMA_BIT_MASK(32)) != 0) |
|
return -EINVAL; |
|
|
|
/* adapter only supports message blocks below 4GB */ |
|
dma_set_coherent_mask(&pDev->dev, DMA_BIT_MASK(32)); |
|
|
|
base_addr0_phys = pci_resource_start(pDev,0); |
|
hba_map0_area_size = pci_resource_len(pDev,0); |
|
|
|
// Check if standard PCI card or single BAR Raptor |
|
if(pDev->device == PCI_DPT_DEVICE_ID){ |
|
if(pDev->subsystem_device >=0xc032 && pDev->subsystem_device <= 0xc03b){ |
|
// Raptor card with this device id needs 4M |
|
hba_map0_area_size = 0x400000; |
|
} else { // Not Raptor - it is a PCI card |
|
if(hba_map0_area_size > 0x100000 ){ |
|
hba_map0_area_size = 0x100000; |
|
} |
|
} |
|
} else {// Raptor split BAR config |
|
// Use BAR1 in this configuration |
|
base_addr1_phys = pci_resource_start(pDev,1); |
|
hba_map1_area_size = pci_resource_len(pDev,1); |
|
raptorFlag = TRUE; |
|
} |
|
|
|
#if BITS_PER_LONG == 64 |
|
/* |
|
* The original Adaptec 64 bit driver has this comment here: |
|
* "x86_64 machines need more optimal mappings" |
|
* |
|
* I assume some HBAs report ridiculously large mappings |
|
* and we need to limit them on platforms with IOMMUs. |
|
*/ |
|
if (raptorFlag == TRUE) { |
|
if (hba_map0_area_size > 128) |
|
hba_map0_area_size = 128; |
|
if (hba_map1_area_size > 524288) |
|
hba_map1_area_size = 524288; |
|
} else { |
|
if (hba_map0_area_size > 524288) |
|
hba_map0_area_size = 524288; |
|
} |
|
#endif |
|
|
|
base_addr_virt = ioremap(base_addr0_phys,hba_map0_area_size); |
|
if (!base_addr_virt) { |
|
pci_release_regions(pDev); |
|
PERROR("dpti: adpt_config_hba: io remap failed\n"); |
|
return -EINVAL; |
|
} |
|
|
|
if(raptorFlag == TRUE) { |
|
msg_addr_virt = ioremap(base_addr1_phys, hba_map1_area_size ); |
|
if (!msg_addr_virt) { |
|
PERROR("dpti: adpt_config_hba: io remap failed on BAR1\n"); |
|
iounmap(base_addr_virt); |
|
pci_release_regions(pDev); |
|
return -EINVAL; |
|
} |
|
} else { |
|
msg_addr_virt = base_addr_virt; |
|
} |
|
|
|
// Allocate and zero the data structure |
|
pHba = kzalloc(sizeof(adpt_hba), GFP_KERNEL); |
|
if (!pHba) { |
|
if (msg_addr_virt != base_addr_virt) |
|
iounmap(msg_addr_virt); |
|
iounmap(base_addr_virt); |
|
pci_release_regions(pDev); |
|
return -ENOMEM; |
|
} |
|
|
|
mutex_lock(&adpt_configuration_lock); |
|
|
|
if(hba_chain != NULL){ |
|
for(p = hba_chain; p->next; p = p->next); |
|
p->next = pHba; |
|
} else { |
|
hba_chain = pHba; |
|
} |
|
pHba->next = NULL; |
|
pHba->unit = hba_count; |
|
sprintf(pHba->name, "dpti%d", hba_count); |
|
hba_count++; |
|
|
|
mutex_unlock(&adpt_configuration_lock); |
|
|
|
pHba->pDev = pDev; |
|
pHba->base_addr_phys = base_addr0_phys; |
|
|
|
// Set up the Virtual Base Address of the I2O Device |
|
pHba->base_addr_virt = base_addr_virt; |
|
pHba->msg_addr_virt = msg_addr_virt; |
|
pHba->irq_mask = base_addr_virt+0x30; |
|
pHba->post_port = base_addr_virt+0x40; |
|
pHba->reply_port = base_addr_virt+0x44; |
|
|
|
pHba->hrt = NULL; |
|
pHba->lct = NULL; |
|
pHba->lct_size = 0; |
|
pHba->status_block = NULL; |
|
pHba->post_count = 0; |
|
pHba->state = DPTI_STATE_RESET; |
|
pHba->pDev = pDev; |
|
pHba->devices = NULL; |
|
pHba->dma64 = dma64; |
|
|
|
// Initializing the spinlocks |
|
spin_lock_init(&pHba->state_lock); |
|
spin_lock_init(&adpt_post_wait_lock); |
|
|
|
if(raptorFlag == 0){ |
|
printk(KERN_INFO "Adaptec I2O RAID controller" |
|
" %d at %p size=%x irq=%d%s\n", |
|
hba_count-1, base_addr_virt, |
|
hba_map0_area_size, pDev->irq, |
|
dma64 ? " (64-bit DMA)" : ""); |
|
} else { |
|
printk(KERN_INFO"Adaptec I2O RAID controller %d irq=%d%s\n", |
|
hba_count-1, pDev->irq, |
|
dma64 ? " (64-bit DMA)" : ""); |
|
printk(KERN_INFO" BAR0 %p - size= %x\n",base_addr_virt,hba_map0_area_size); |
|
printk(KERN_INFO" BAR1 %p - size= %x\n",msg_addr_virt,hba_map1_area_size); |
|
} |
|
|
|
if (request_irq (pDev->irq, adpt_isr, IRQF_SHARED, pHba->name, pHba)) { |
|
printk(KERN_ERR"%s: Couldn't register IRQ %d\n", pHba->name, pDev->irq); |
|
adpt_i2o_delete_hba(pHba); |
|
return -EINVAL; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
|
|
static void adpt_i2o_delete_hba(adpt_hba* pHba) |
|
{ |
|
adpt_hba* p1; |
|
adpt_hba* p2; |
|
struct i2o_device* d; |
|
struct i2o_device* next; |
|
int i; |
|
int j; |
|
struct adpt_device* pDev; |
|
struct adpt_device* pNext; |
|
|
|
|
|
mutex_lock(&adpt_configuration_lock); |
|
if(pHba->host){ |
|
free_irq(pHba->host->irq, pHba); |
|
} |
|
p2 = NULL; |
|
for( p1 = hba_chain; p1; p2 = p1,p1=p1->next){ |
|
if(p1 == pHba) { |
|
if(p2) { |
|
p2->next = p1->next; |
|
} else { |
|
hba_chain = p1->next; |
|
} |
|
break; |
|
} |
|
} |
|
|
|
hba_count--; |
|
mutex_unlock(&adpt_configuration_lock); |
|
|
|
iounmap(pHba->base_addr_virt); |
|
pci_release_regions(pHba->pDev); |
|
if(pHba->msg_addr_virt != pHba->base_addr_virt){ |
|
iounmap(pHba->msg_addr_virt); |
|
} |
|
if(pHba->FwDebugBuffer_P) |
|
iounmap(pHba->FwDebugBuffer_P); |
|
if(pHba->hrt) { |
|
dma_free_coherent(&pHba->pDev->dev, |
|
pHba->hrt->num_entries * pHba->hrt->entry_len << 2, |
|
pHba->hrt, pHba->hrt_pa); |
|
} |
|
if(pHba->lct) { |
|
dma_free_coherent(&pHba->pDev->dev, pHba->lct_size, |
|
pHba->lct, pHba->lct_pa); |
|
} |
|
if(pHba->status_block) { |
|
dma_free_coherent(&pHba->pDev->dev, sizeof(i2o_status_block), |
|
pHba->status_block, pHba->status_block_pa); |
|
} |
|
if(pHba->reply_pool) { |
|
dma_free_coherent(&pHba->pDev->dev, |
|
pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4, |
|
pHba->reply_pool, pHba->reply_pool_pa); |
|
} |
|
|
|
for(d = pHba->devices; d ; d = next){ |
|
next = d->next; |
|
kfree(d); |
|
} |
|
for(i = 0 ; i < pHba->top_scsi_channel ; i++){ |
|
for(j = 0; j < MAX_ID; j++){ |
|
if(pHba->channel[i].device[j] != NULL){ |
|
for(pDev = pHba->channel[i].device[j]; pDev; pDev = pNext){ |
|
pNext = pDev->next_lun; |
|
kfree(pDev); |
|
} |
|
} |
|
} |
|
} |
|
pci_dev_put(pHba->pDev); |
|
if (adpt_sysfs_class) |
|
device_destroy(adpt_sysfs_class, |
|
MKDEV(DPTI_I2O_MAJOR, pHba->unit)); |
|
kfree(pHba); |
|
|
|
if(hba_count <= 0){ |
|
unregister_chrdev(DPTI_I2O_MAJOR, DPT_DRIVER); |
|
if (adpt_sysfs_class) { |
|
class_destroy(adpt_sysfs_class); |
|
adpt_sysfs_class = NULL; |
|
} |
|
} |
|
} |
|
|
|
static struct adpt_device* adpt_find_device(adpt_hba* pHba, u32 chan, u32 id, u64 lun) |
|
{ |
|
struct adpt_device* d; |
|
|
|
if (chan >= MAX_CHANNEL) |
|
return NULL; |
|
|
|
d = pHba->channel[chan].device[id]; |
|
if(!d || d->tid == 0) { |
|
return NULL; |
|
} |
|
|
|
/* If it is the only lun at that address then this should match*/ |
|
if(d->scsi_lun == lun){ |
|
return d; |
|
} |
|
|
|
/* else we need to look through all the luns */ |
|
for(d=d->next_lun ; d ; d = d->next_lun){ |
|
if(d->scsi_lun == lun){ |
|
return d; |
|
} |
|
} |
|
return NULL; |
|
} |
|
|
|
|
|
static int adpt_i2o_post_wait(adpt_hba* pHba, u32* msg, int len, int timeout) |
|
{ |
|
// I used my own version of the WAIT_QUEUE_HEAD |
|
// to handle some version differences |
|
// When embedded in the kernel this could go back to the vanilla one |
|
ADPT_DECLARE_WAIT_QUEUE_HEAD(adpt_wq_i2o_post); |
|
int status = 0; |
|
ulong flags = 0; |
|
struct adpt_i2o_post_wait_data *p1, *p2; |
|
struct adpt_i2o_post_wait_data *wait_data = |
|
kmalloc(sizeof(struct adpt_i2o_post_wait_data), GFP_ATOMIC); |
|
DECLARE_WAITQUEUE(wait, current); |
|
|
|
if (!wait_data) |
|
return -ENOMEM; |
|
|
|
/* |
|
* The spin locking is needed to keep anyone from playing |
|
* with the queue pointers and id while we do the same |
|
*/ |
|
spin_lock_irqsave(&adpt_post_wait_lock, flags); |
|
// TODO we need a MORE unique way of getting ids |
|
// to support async LCT get |
|
wait_data->next = adpt_post_wait_queue; |
|
adpt_post_wait_queue = wait_data; |
|
adpt_post_wait_id++; |
|
adpt_post_wait_id &= 0x7fff; |
|
wait_data->id = adpt_post_wait_id; |
|
spin_unlock_irqrestore(&adpt_post_wait_lock, flags); |
|
|
|
wait_data->wq = &adpt_wq_i2o_post; |
|
wait_data->status = -ETIMEDOUT; |
|
|
|
add_wait_queue(&adpt_wq_i2o_post, &wait); |
|
|
|
msg[2] |= 0x80000000 | ((u32)wait_data->id); |
|
timeout *= HZ; |
|
if((status = adpt_i2o_post_this(pHba, msg, len)) == 0){ |
|
set_current_state(TASK_INTERRUPTIBLE); |
|
if(pHba->host) |
|
spin_unlock_irq(pHba->host->host_lock); |
|
if (!timeout) |
|
schedule(); |
|
else{ |
|
timeout = schedule_timeout(timeout); |
|
if (timeout == 0) { |
|
// I/O issued, but cannot get result in |
|
// specified time. Freeing resorces is |
|
// dangerous. |
|
status = -ETIME; |
|
} |
|
} |
|
if(pHba->host) |
|
spin_lock_irq(pHba->host->host_lock); |
|
} |
|
remove_wait_queue(&adpt_wq_i2o_post, &wait); |
|
|
|
if(status == -ETIMEDOUT){ |
|
printk(KERN_INFO"dpti%d: POST WAIT TIMEOUT\n",pHba->unit); |
|
// We will have to free the wait_data memory during shutdown |
|
return status; |
|
} |
|
|
|
/* Remove the entry from the queue. */ |
|
p2 = NULL; |
|
spin_lock_irqsave(&adpt_post_wait_lock, flags); |
|
for(p1 = adpt_post_wait_queue; p1; p2 = p1, p1 = p1->next) { |
|
if(p1 == wait_data) { |
|
if(p1->status == I2O_DETAIL_STATUS_UNSUPPORTED_FUNCTION ) { |
|
status = -EOPNOTSUPP; |
|
} |
|
if(p2) { |
|
p2->next = p1->next; |
|
} else { |
|
adpt_post_wait_queue = p1->next; |
|
} |
|
break; |
|
} |
|
} |
|
spin_unlock_irqrestore(&adpt_post_wait_lock, flags); |
|
|
|
kfree(wait_data); |
|
|
|
return status; |
|
} |
|
|
|
|
|
static s32 adpt_i2o_post_this(adpt_hba* pHba, u32* data, int len) |
|
{ |
|
|
|
u32 m = EMPTY_QUEUE; |
|
u32 __iomem *msg; |
|
ulong timeout = jiffies + 30*HZ; |
|
do { |
|
rmb(); |
|
m = readl(pHba->post_port); |
|
if (m != EMPTY_QUEUE) { |
|
break; |
|
} |
|
if(time_after(jiffies,timeout)){ |
|
printk(KERN_WARNING"dpti%d: Timeout waiting for message frame!\n", pHba->unit); |
|
return -ETIMEDOUT; |
|
} |
|
schedule_timeout_uninterruptible(1); |
|
} while(m == EMPTY_QUEUE); |
|
|
|
msg = pHba->msg_addr_virt + m; |
|
memcpy_toio(msg, data, len); |
|
wmb(); |
|
|
|
//post message |
|
writel(m, pHba->post_port); |
|
wmb(); |
|
|
|
return 0; |
|
} |
|
|
|
|
|
static void adpt_i2o_post_wait_complete(u32 context, int status) |
|
{ |
|
struct adpt_i2o_post_wait_data *p1 = NULL; |
|
/* |
|
* We need to search through the adpt_post_wait |
|
* queue to see if the given message is still |
|
* outstanding. If not, it means that the IOP |
|
* took longer to respond to the message than we |
|
* had allowed and timer has already expired. |
|
* Not much we can do about that except log |
|
* it for debug purposes, increase timeout, and recompile |
|
* |
|
* Lock needed to keep anyone from moving queue pointers |
|
* around while we're looking through them. |
|
*/ |
|
|
|
context &= 0x7fff; |
|
|
|
spin_lock(&adpt_post_wait_lock); |
|
for(p1 = adpt_post_wait_queue; p1; p1 = p1->next) { |
|
if(p1->id == context) { |
|
p1->status = status; |
|
spin_unlock(&adpt_post_wait_lock); |
|
wake_up_interruptible(p1->wq); |
|
return; |
|
} |
|
} |
|
spin_unlock(&adpt_post_wait_lock); |
|
// If this happens we lose commands that probably really completed |
|
printk(KERN_DEBUG"dpti: Could Not find task %d in wait queue\n",context); |
|
printk(KERN_DEBUG" Tasks in wait queue:\n"); |
|
for(p1 = adpt_post_wait_queue; p1; p1 = p1->next) { |
|
printk(KERN_DEBUG" %d\n",p1->id); |
|
} |
|
return; |
|
} |
|
|
|
static s32 adpt_i2o_reset_hba(adpt_hba* pHba) |
|
{ |
|
u32 msg[8]; |
|
u8* status; |
|
dma_addr_t addr; |
|
u32 m = EMPTY_QUEUE ; |
|
ulong timeout = jiffies + (TMOUT_IOPRESET*HZ); |
|
|
|
if(pHba->initialized == FALSE) { // First time reset should be quick |
|
timeout = jiffies + (25*HZ); |
|
} else { |
|
adpt_i2o_quiesce_hba(pHba); |
|
} |
|
|
|
do { |
|
rmb(); |
|
m = readl(pHba->post_port); |
|
if (m != EMPTY_QUEUE) { |
|
break; |
|
} |
|
if(time_after(jiffies,timeout)){ |
|
printk(KERN_WARNING"Timeout waiting for message!\n"); |
|
return -ETIMEDOUT; |
|
} |
|
schedule_timeout_uninterruptible(1); |
|
} while (m == EMPTY_QUEUE); |
|
|
|
status = dma_alloc_coherent(&pHba->pDev->dev, 4, &addr, GFP_KERNEL); |
|
if(status == NULL) { |
|
adpt_send_nop(pHba, m); |
|
printk(KERN_ERR"IOP reset failed - no free memory.\n"); |
|
return -ENOMEM; |
|
} |
|
|
|
msg[0]=EIGHT_WORD_MSG_SIZE|SGL_OFFSET_0; |
|
msg[1]=I2O_CMD_ADAPTER_RESET<<24|HOST_TID<<12|ADAPTER_TID; |
|
msg[2]=0; |
|
msg[3]=0; |
|
msg[4]=0; |
|
msg[5]=0; |
|
msg[6]=dma_low(addr); |
|
msg[7]=dma_high(addr); |
|
|
|
memcpy_toio(pHba->msg_addr_virt+m, msg, sizeof(msg)); |
|
wmb(); |
|
writel(m, pHba->post_port); |
|
wmb(); |
|
|
|
while(*status == 0){ |
|
if(time_after(jiffies,timeout)){ |
|
printk(KERN_WARNING"%s: IOP Reset Timeout\n",pHba->name); |
|
/* We lose 4 bytes of "status" here, but we cannot |
|
free these because controller may awake and corrupt |
|
those bytes at any time */ |
|
/* dma_free_coherent(&pHba->pDev->dev, 4, buf, addr); */ |
|
return -ETIMEDOUT; |
|
} |
|
rmb(); |
|
schedule_timeout_uninterruptible(1); |
|
} |
|
|
|
if(*status == 0x01 /*I2O_EXEC_IOP_RESET_IN_PROGRESS*/) { |
|
PDEBUG("%s: Reset in progress...\n", pHba->name); |
|
// Here we wait for message frame to become available |
|
// indicated that reset has finished |
|
do { |
|
rmb(); |
|
m = readl(pHba->post_port); |
|
if (m != EMPTY_QUEUE) { |
|
break; |
|
} |
|
if(time_after(jiffies,timeout)){ |
|
printk(KERN_ERR "%s:Timeout waiting for IOP Reset.\n",pHba->name); |
|
/* We lose 4 bytes of "status" here, but we |
|
cannot free these because controller may |
|
awake and corrupt those bytes at any time */ |
|
/* dma_free_coherent(&pHba->pDev->dev, 4, buf, addr); */ |
|
return -ETIMEDOUT; |
|
} |
|
schedule_timeout_uninterruptible(1); |
|
} while (m == EMPTY_QUEUE); |
|
// Flush the offset |
|
adpt_send_nop(pHba, m); |
|
} |
|
adpt_i2o_status_get(pHba); |
|
if(*status == 0x02 || |
|
pHba->status_block->iop_state != ADAPTER_STATE_RESET) { |
|
printk(KERN_WARNING"%s: Reset reject, trying to clear\n", |
|
pHba->name); |
|
} else { |
|
PDEBUG("%s: Reset completed.\n", pHba->name); |
|
} |
|
|
|
dma_free_coherent(&pHba->pDev->dev, 4, status, addr); |
|
#ifdef UARTDELAY |
|
// This delay is to allow someone attached to the card through the debug UART to |
|
// set up the dump levels that they want before the rest of the initialization sequence |
|
adpt_delay(20000); |
|
#endif |
|
return 0; |
|
} |
|
|
|
|
|
static int adpt_i2o_parse_lct(adpt_hba* pHba) |
|
{ |
|
int i; |
|
int max; |
|
int tid; |
|
struct i2o_device *d; |
|
i2o_lct *lct = pHba->lct; |
|
u8 bus_no = 0; |
|
s16 scsi_id; |
|
u64 scsi_lun; |
|
u32 buf[10]; // larger than 7, or 8 ... |
|
struct adpt_device* pDev; |
|
|
|
if (lct == NULL) { |
|
printk(KERN_ERR "%s: LCT is empty???\n",pHba->name); |
|
return -1; |
|
} |
|
|
|
max = lct->table_size; |
|
max -= 3; |
|
max /= 9; |
|
|
|
for(i=0;i<max;i++) { |
|
if( lct->lct_entry[i].user_tid != 0xfff){ |
|
/* |
|
* If we have hidden devices, we need to inform the upper layers about |
|
* the possible maximum id reference to handle device access when |
|
* an array is disassembled. This code has no other purpose but to |
|
* allow us future access to devices that are currently hidden |
|
* behind arrays, hotspares or have not been configured (JBOD mode). |
|
*/ |
|
if( lct->lct_entry[i].class_id != I2O_CLASS_RANDOM_BLOCK_STORAGE && |
|
lct->lct_entry[i].class_id != I2O_CLASS_SCSI_PERIPHERAL && |
|
lct->lct_entry[i].class_id != I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL ){ |
|
continue; |
|
} |
|
tid = lct->lct_entry[i].tid; |
|
// I2O_DPT_DEVICE_INFO_GROUP_NO; |
|
if(adpt_i2o_query_scalar(pHba, tid, 0x8000, -1, buf, 32)<0) { |
|
continue; |
|
} |
|
bus_no = buf[0]>>16; |
|
scsi_id = buf[1]; |
|
scsi_lun = scsilun_to_int((struct scsi_lun *)&buf[2]); |
|
if(bus_no >= MAX_CHANNEL) { // Something wrong skip it |
|
printk(KERN_WARNING"%s: Channel number %d out of range \n", pHba->name, bus_no); |
|
continue; |
|
} |
|
if (scsi_id >= MAX_ID){ |
|
printk(KERN_WARNING"%s: SCSI ID %d out of range \n", pHba->name, bus_no); |
|
continue; |
|
} |
|
if(bus_no > pHba->top_scsi_channel){ |
|
pHba->top_scsi_channel = bus_no; |
|
} |
|
if(scsi_id > pHba->top_scsi_id){ |
|
pHba->top_scsi_id = scsi_id; |
|
} |
|
if(scsi_lun > pHba->top_scsi_lun){ |
|
pHba->top_scsi_lun = scsi_lun; |
|
} |
|
continue; |
|
} |
|
d = kmalloc(sizeof(struct i2o_device), GFP_KERNEL); |
|
if(d==NULL) |
|
{ |
|
printk(KERN_CRIT"%s: Out of memory for I2O device data.\n",pHba->name); |
|
return -ENOMEM; |
|
} |
|
|
|
d->controller = pHba; |
|
d->next = NULL; |
|
|
|
memcpy(&d->lct_data, &lct->lct_entry[i], sizeof(i2o_lct_entry)); |
|
|
|
d->flags = 0; |
|
tid = d->lct_data.tid; |
|
adpt_i2o_report_hba_unit(pHba, d); |
|
adpt_i2o_install_device(pHba, d); |
|
} |
|
bus_no = 0; |
|
for(d = pHba->devices; d ; d = d->next) { |
|
if(d->lct_data.class_id == I2O_CLASS_BUS_ADAPTER_PORT || |
|
d->lct_data.class_id == I2O_CLASS_FIBRE_CHANNEL_PORT){ |
|
tid = d->lct_data.tid; |
|
// TODO get the bus_no from hrt-but for now they are in order |
|
//bus_no = |
|
if(bus_no > pHba->top_scsi_channel){ |
|
pHba->top_scsi_channel = bus_no; |
|
} |
|
pHba->channel[bus_no].type = d->lct_data.class_id; |
|
pHba->channel[bus_no].tid = tid; |
|
if(adpt_i2o_query_scalar(pHba, tid, 0x0200, -1, buf, 28)>=0) |
|
{ |
|
pHba->channel[bus_no].scsi_id = buf[1]; |
|
PDEBUG("Bus %d - SCSI ID %d.\n", bus_no, buf[1]); |
|
} |
|
// TODO remove - this is just until we get from hrt |
|
bus_no++; |
|
if(bus_no >= MAX_CHANNEL) { // Something wrong skip it |
|
printk(KERN_WARNING"%s: Channel number %d out of range - LCT\n", pHba->name, bus_no); |
|
break; |
|
} |
|
} |
|
} |
|
|
|
// Setup adpt_device table |
|
for(d = pHba->devices; d ; d = d->next) { |
|
if(d->lct_data.class_id == I2O_CLASS_RANDOM_BLOCK_STORAGE || |
|
d->lct_data.class_id == I2O_CLASS_SCSI_PERIPHERAL || |
|
d->lct_data.class_id == I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL ){ |
|
|
|
tid = d->lct_data.tid; |
|
scsi_id = -1; |
|
// I2O_DPT_DEVICE_INFO_GROUP_NO; |
|
if(adpt_i2o_query_scalar(pHba, tid, 0x8000, -1, buf, 32)>=0) { |
|
bus_no = buf[0]>>16; |
|
scsi_id = buf[1]; |
|
scsi_lun = scsilun_to_int((struct scsi_lun *)&buf[2]); |
|
if(bus_no >= MAX_CHANNEL) { // Something wrong skip it |
|
continue; |
|
} |
|
if (scsi_id >= MAX_ID) { |
|
continue; |
|
} |
|
if( pHba->channel[bus_no].device[scsi_id] == NULL){ |
|
pDev = kzalloc(sizeof(struct adpt_device),GFP_KERNEL); |
|
if(pDev == NULL) { |
|
return -ENOMEM; |
|
} |
|
pHba->channel[bus_no].device[scsi_id] = pDev; |
|
} else { |
|
for( pDev = pHba->channel[bus_no].device[scsi_id]; |
|
pDev->next_lun; pDev = pDev->next_lun){ |
|
} |
|
pDev->next_lun = kzalloc(sizeof(struct adpt_device),GFP_KERNEL); |
|
if(pDev->next_lun == NULL) { |
|
return -ENOMEM; |
|
} |
|
pDev = pDev->next_lun; |
|
} |
|
pDev->tid = tid; |
|
pDev->scsi_channel = bus_no; |
|
pDev->scsi_id = scsi_id; |
|
pDev->scsi_lun = scsi_lun; |
|
pDev->pI2o_dev = d; |
|
d->owner = pDev; |
|
pDev->type = (buf[0])&0xff; |
|
pDev->flags = (buf[0]>>8)&0xff; |
|
if(scsi_id > pHba->top_scsi_id){ |
|
pHba->top_scsi_id = scsi_id; |
|
} |
|
if(scsi_lun > pHba->top_scsi_lun){ |
|
pHba->top_scsi_lun = scsi_lun; |
|
} |
|
} |
|
if(scsi_id == -1){ |
|
printk(KERN_WARNING"Could not find SCSI ID for %s\n", |
|
d->lct_data.identity_tag); |
|
} |
|
} |
|
} |
|
return 0; |
|
} |
|
|
|
|
|
/* |
|
* Each I2O controller has a chain of devices on it - these match |
|
* the useful parts of the LCT of the board. |
|
*/ |
|
|
|
static int adpt_i2o_install_device(adpt_hba* pHba, struct i2o_device *d) |
|
{ |
|
mutex_lock(&adpt_configuration_lock); |
|
d->controller=pHba; |
|
d->owner=NULL; |
|
d->next=pHba->devices; |
|
d->prev=NULL; |
|
if (pHba->devices != NULL){ |
|
pHba->devices->prev=d; |
|
} |
|
pHba->devices=d; |
|
*d->dev_name = 0; |
|
|
|
mutex_unlock(&adpt_configuration_lock); |
|
return 0; |
|
} |
|
|
|
static int adpt_open(struct inode *inode, struct file *file) |
|
{ |
|
int minor; |
|
adpt_hba* pHba; |
|
|
|
mutex_lock(&adpt_mutex); |
|
//TODO check for root access |
|
// |
|
minor = iminor(inode); |
|
if (minor >= hba_count) { |
|
mutex_unlock(&adpt_mutex); |
|
return -ENXIO; |
|
} |
|
mutex_lock(&adpt_configuration_lock); |
|
for (pHba = hba_chain; pHba; pHba = pHba->next) { |
|
if (pHba->unit == minor) { |
|
break; /* found adapter */ |
|
} |
|
} |
|
if (pHba == NULL) { |
|
mutex_unlock(&adpt_configuration_lock); |
|
mutex_unlock(&adpt_mutex); |
|
return -ENXIO; |
|
} |
|
|
|
// if(pHba->in_use){ |
|
// mutex_unlock(&adpt_configuration_lock); |
|
// return -EBUSY; |
|
// } |
|
|
|
pHba->in_use = 1; |
|
mutex_unlock(&adpt_configuration_lock); |
|
mutex_unlock(&adpt_mutex); |
|
|
|
return 0; |
|
} |
|
|
|
static int adpt_close(struct inode *inode, struct file *file) |
|
{ |
|
int minor; |
|
adpt_hba* pHba; |
|
|
|
minor = iminor(inode); |
|
if (minor >= hba_count) { |
|
return -ENXIO; |
|
} |
|
mutex_lock(&adpt_configuration_lock); |
|
for (pHba = hba_chain; pHba; pHba = pHba->next) { |
|
if (pHba->unit == minor) { |
|
break; /* found adapter */ |
|
} |
|
} |
|
mutex_unlock(&adpt_configuration_lock); |
|
if (pHba == NULL) { |
|
return -ENXIO; |
|
} |
|
|
|
pHba->in_use = 0; |
|
|
|
return 0; |
|
} |
|
|
|
|
|
static int adpt_i2o_passthru(adpt_hba* pHba, u32 __user *arg) |
|
{ |
|
u32 msg[MAX_MESSAGE_SIZE]; |
|
u32* reply = NULL; |
|
u32 size = 0; |
|
u32 reply_size = 0; |
|
u32 __user *user_msg = arg; |
|
u32 __user * user_reply = NULL; |
|
void **sg_list = NULL; |
|
u32 sg_offset = 0; |
|
u32 sg_count = 0; |
|
int sg_index = 0; |
|
u32 i = 0; |
|
u32 rcode = 0; |
|
void *p = NULL; |
|
dma_addr_t addr; |
|
ulong flags = 0; |
|
|
|
memset(&msg, 0, MAX_MESSAGE_SIZE*4); |
|
// get user msg size in u32s |
|
if(get_user(size, &user_msg[0])){ |
|
return -EFAULT; |
|
} |
|
size = size>>16; |
|
|
|
user_reply = &user_msg[size]; |
|
if(size > MAX_MESSAGE_SIZE){ |
|
return -EFAULT; |
|
} |
|
size *= 4; // Convert to bytes |
|
|
|
/* Copy in the user's I2O command */ |
|
if(copy_from_user(msg, user_msg, size)) { |
|
return -EFAULT; |
|
} |
|
get_user(reply_size, &user_reply[0]); |
|
reply_size = reply_size>>16; |
|
if(reply_size > REPLY_FRAME_SIZE){ |
|
reply_size = REPLY_FRAME_SIZE; |
|
} |
|
reply_size *= 4; |
|
reply = kzalloc(REPLY_FRAME_SIZE*4, GFP_KERNEL); |
|
if(reply == NULL) { |
|
printk(KERN_WARNING"%s: Could not allocate reply buffer\n",pHba->name); |
|
return -ENOMEM; |
|
} |
|
sg_offset = (msg[0]>>4)&0xf; |
|
msg[2] = 0x40000000; // IOCTL context |
|
msg[3] = adpt_ioctl_to_context(pHba, reply); |
|
if (msg[3] == (u32)-1) { |
|
rcode = -EBUSY; |
|
goto free; |
|
} |
|
|
|
sg_list = kcalloc(pHba->sg_tablesize, sizeof(*sg_list), GFP_KERNEL); |
|
if (!sg_list) { |
|
rcode = -ENOMEM; |
|
goto free; |
|
} |
|
if(sg_offset) { |
|
// TODO add 64 bit API |
|
struct sg_simple_element *sg = (struct sg_simple_element*) (msg+sg_offset); |
|
sg_count = (size - sg_offset*4) / sizeof(struct sg_simple_element); |
|
if (sg_count > pHba->sg_tablesize){ |
|
printk(KERN_DEBUG"%s:IOCTL SG List too large (%u)\n", pHba->name,sg_count); |
|
rcode = -EINVAL; |
|
goto free; |
|
} |
|
|
|
for(i = 0; i < sg_count; i++) { |
|
int sg_size; |
|
|
|
if (!(sg[i].flag_count & 0x10000000 /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT*/)) { |
|
printk(KERN_DEBUG"%s:Bad SG element %d - not simple (%x)\n",pHba->name,i, sg[i].flag_count); |
|
rcode = -EINVAL; |
|
goto cleanup; |
|
} |
|
sg_size = sg[i].flag_count & 0xffffff; |
|
/* Allocate memory for the transfer */ |
|
p = dma_alloc_coherent(&pHba->pDev->dev, sg_size, &addr, GFP_KERNEL); |
|
if(!p) { |
|
printk(KERN_DEBUG"%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n", |
|
pHba->name,sg_size,i,sg_count); |
|
rcode = -ENOMEM; |
|
goto cleanup; |
|
} |
|
sg_list[sg_index++] = p; // sglist indexed with input frame, not our internal frame. |
|
/* Copy in the user's SG buffer if necessary */ |
|
if(sg[i].flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR*/) { |
|
// sg_simple_element API is 32 bit |
|
if (copy_from_user(p,(void __user *)(ulong)sg[i].addr_bus, sg_size)) { |
|
printk(KERN_DEBUG"%s: Could not copy SG buf %d FROM user\n",pHba->name,i); |
|
rcode = -EFAULT; |
|
goto cleanup; |
|
} |
|
} |
|
/* sg_simple_element API is 32 bit, but addr < 4GB */ |
|
sg[i].addr_bus = addr; |
|
} |
|
} |
|
|
|
do { |
|
/* |
|
* Stop any new commands from enterring the |
|
* controller while processing the ioctl |
|
*/ |
|
if (pHba->host) { |
|
scsi_block_requests(pHba->host); |
|
spin_lock_irqsave(pHba->host->host_lock, flags); |
|
} |
|
rcode = adpt_i2o_post_wait(pHba, msg, size, FOREVER); |
|
if (rcode != 0) |
|
printk("adpt_i2o_passthru: post wait failed %d %p\n", |
|
rcode, reply); |
|
if (pHba->host) { |
|
spin_unlock_irqrestore(pHba->host->host_lock, flags); |
|
scsi_unblock_requests(pHba->host); |
|
} |
|
} while (rcode == -ETIMEDOUT); |
|
|
|
if(rcode){ |
|
goto cleanup; |
|
} |
|
|
|
if(sg_offset) { |
|
/* Copy back the Scatter Gather buffers back to user space */ |
|
u32 j; |
|
// TODO add 64 bit API |
|
struct sg_simple_element* sg; |
|
int sg_size; |
|
|
|
// re-acquire the original message to handle correctly the sg copy operation |
|
memset(&msg, 0, MAX_MESSAGE_SIZE*4); |
|
// get user msg size in u32s |
|
if(get_user(size, &user_msg[0])){ |
|
rcode = -EFAULT; |
|
goto cleanup; |
|
} |
|
size = size>>16; |
|
size *= 4; |
|
if (size > MAX_MESSAGE_SIZE) { |
|
rcode = -EINVAL; |
|
goto cleanup; |
|
} |
|
/* Copy in the user's I2O command */ |
|
if (copy_from_user (msg, user_msg, size)) { |
|
rcode = -EFAULT; |
|
goto cleanup; |
|
} |
|
sg_count = (size - sg_offset*4) / sizeof(struct sg_simple_element); |
|
|
|
// TODO add 64 bit API |
|
sg = (struct sg_simple_element*)(msg + sg_offset); |
|
for (j = 0; j < sg_count; j++) { |
|
/* Copy out the SG list to user's buffer if necessary */ |
|
if(! (sg[j].flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR*/)) { |
|
sg_size = sg[j].flag_count & 0xffffff; |
|
// sg_simple_element API is 32 bit |
|
if (copy_to_user((void __user *)(ulong)sg[j].addr_bus,sg_list[j], sg_size)) { |
|
printk(KERN_WARNING"%s: Could not copy %p TO user %x\n",pHba->name, sg_list[j], sg[j].addr_bus); |
|
rcode = -EFAULT; |
|
goto cleanup; |
|
} |
|
} |
|
} |
|
} |
|
|
|
/* Copy back the reply to user space */ |
|
if (reply_size) { |
|
// we wrote our own values for context - now restore the user supplied ones |
|
if(copy_from_user(reply+2, user_msg+2, sizeof(u32)*2)) { |
|
printk(KERN_WARNING"%s: Could not copy message context FROM user\n",pHba->name); |
|
rcode = -EFAULT; |
|
} |
|
if(copy_to_user(user_reply, reply, reply_size)) { |
|
printk(KERN_WARNING"%s: Could not copy reply TO user\n",pHba->name); |
|
rcode = -EFAULT; |
|
} |
|
} |
|
|
|
|
|
cleanup: |
|
if (rcode != -ETIME && rcode != -EINTR) { |
|
struct sg_simple_element *sg = |
|
(struct sg_simple_element*) (msg +sg_offset); |
|
while(sg_index) { |
|
if(sg_list[--sg_index]) { |
|
dma_free_coherent(&pHba->pDev->dev, |
|
sg[sg_index].flag_count & 0xffffff, |
|
sg_list[sg_index], |
|
sg[sg_index].addr_bus); |
|
} |
|
} |
|
} |
|
|
|
free: |
|
kfree(sg_list); |
|
kfree(reply); |
|
return rcode; |
|
} |
|
|
|
#if defined __ia64__ |
|
static void adpt_ia64_info(sysInfo_S* si) |
|
{ |
|
// This is all the info we need for now |
|
// We will add more info as our new |
|
// managmenent utility requires it |
|
si->processorType = PROC_IA64; |
|
} |
|
#endif |
|
|
|
#if defined __sparc__ |
|
static void adpt_sparc_info(sysInfo_S* si) |
|
{ |
|
// This is all the info we need for now |
|
// We will add more info as our new |
|
// managmenent utility requires it |
|
si->processorType = PROC_ULTRASPARC; |
|
} |
|
#endif |
|
#if defined __alpha__ |
|
static void adpt_alpha_info(sysInfo_S* si) |
|
{ |
|
// This is all the info we need for now |
|
// We will add more info as our new |
|
// managmenent utility requires it |
|
si->processorType = PROC_ALPHA; |
|
} |
|
#endif |
|
|
|
#if defined __i386__ |
|
|
|
#include <uapi/asm/vm86.h> |
|
|
|
static void adpt_i386_info(sysInfo_S* si) |
|
{ |
|
// This is all the info we need for now |
|
// We will add more info as our new |
|
// managmenent utility requires it |
|
switch (boot_cpu_data.x86) { |
|
case CPU_386: |
|
si->processorType = PROC_386; |
|
break; |
|
case CPU_486: |
|
si->processorType = PROC_486; |
|
break; |
|
case CPU_586: |
|
si->processorType = PROC_PENTIUM; |
|
break; |
|
default: // Just in case |
|
si->processorType = PROC_PENTIUM; |
|
break; |
|
} |
|
} |
|
#endif |
|
|
|
/* |
|
* This routine returns information about the system. This does not effect |
|
* any logic and if the info is wrong - it doesn't matter. |
|
*/ |
|
|
|
/* Get all the info we can not get from kernel services */ |
|
static int adpt_system_info(void __user *buffer) |
|
{ |
|
sysInfo_S si; |
|
|
|
memset(&si, 0, sizeof(si)); |
|
|
|
si.osType = OS_LINUX; |
|
si.osMajorVersion = 0; |
|
si.osMinorVersion = 0; |
|
si.osRevision = 0; |
|
si.busType = SI_PCI_BUS; |
|
si.processorFamily = DPTI_sig.dsProcessorFamily; |
|
|
|
#if defined __i386__ |
|
adpt_i386_info(&si); |
|
#elif defined (__ia64__) |
|
adpt_ia64_info(&si); |
|
#elif defined(__sparc__) |
|
adpt_sparc_info(&si); |
|
#elif defined (__alpha__) |
|
adpt_alpha_info(&si); |
|
#else |
|
si.processorType = 0xff ; |
|
#endif |
|
if (copy_to_user(buffer, &si, sizeof(si))){ |
|
printk(KERN_WARNING"dpti: Could not copy buffer TO user\n"); |
|
return -EFAULT; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int adpt_ioctl(struct inode *inode, struct file *file, uint cmd, ulong arg) |
|
{ |
|
int minor; |
|
int error = 0; |
|
adpt_hba* pHba; |
|
ulong flags = 0; |
|
void __user *argp = (void __user *)arg; |
|
|
|
minor = iminor(inode); |
|
if (minor >= DPTI_MAX_HBA){ |
|
return -ENXIO; |
|
} |
|
mutex_lock(&adpt_configuration_lock); |
|
for (pHba = hba_chain; pHba; pHba = pHba->next) { |
|
if (pHba->unit == minor) { |
|
break; /* found adapter */ |
|
} |
|
} |
|
mutex_unlock(&adpt_configuration_lock); |
|
if(pHba == NULL){ |
|
return -ENXIO; |
|
} |
|
|
|
while((volatile u32) pHba->state & DPTI_STATE_RESET ) |
|
schedule_timeout_uninterruptible(2); |
|
|
|
switch (cmd) { |
|
// TODO: handle 3 cases |
|
case DPT_SIGNATURE: |
|
if (copy_to_user(argp, &DPTI_sig, sizeof(DPTI_sig))) { |
|
return -EFAULT; |
|
} |
|
break; |
|
case I2OUSRCMD: |
|
return adpt_i2o_passthru(pHba, argp); |
|
|
|
case DPT_CTRLINFO:{ |
|
drvrHBAinfo_S HbaInfo; |
|
|
|
#define FLG_OSD_PCI_VALID 0x0001 |
|
#define FLG_OSD_DMA 0x0002 |
|
#define FLG_OSD_I2O 0x0004 |
|
memset(&HbaInfo, 0, sizeof(HbaInfo)); |
|
HbaInfo.drvrHBAnum = pHba->unit; |
|
HbaInfo.baseAddr = (ulong) pHba->base_addr_phys; |
|
HbaInfo.blinkState = adpt_read_blink_led(pHba); |
|
HbaInfo.pciBusNum = pHba->pDev->bus->number; |
|
HbaInfo.pciDeviceNum=PCI_SLOT(pHba->pDev->devfn); |
|
HbaInfo.Interrupt = pHba->pDev->irq; |
|
HbaInfo.hbaFlags = FLG_OSD_PCI_VALID | FLG_OSD_DMA | FLG_OSD_I2O; |
|
if(copy_to_user(argp, &HbaInfo, sizeof(HbaInfo))){ |
|
printk(KERN_WARNING"%s: Could not copy HbaInfo TO user\n",pHba->name); |
|
return -EFAULT; |
|
} |
|
break; |
|
} |
|
case DPT_SYSINFO: |
|
return adpt_system_info(argp); |
|
case DPT_BLINKLED:{ |
|
u32 value; |
|
value = (u32)adpt_read_blink_led(pHba); |
|
if (copy_to_user(argp, &value, sizeof(value))) { |
|
return -EFAULT; |
|
} |
|
break; |
|
} |
|
case I2ORESETCMD: { |
|
struct Scsi_Host *shost = pHba->host; |
|
|
|
if (shost) |
|
spin_lock_irqsave(shost->host_lock, flags); |
|
adpt_hba_reset(pHba); |
|
if (shost) |
|
spin_unlock_irqrestore(shost->host_lock, flags); |
|
break; |
|
} |
|
case I2ORESCANCMD: |
|
adpt_rescan(pHba); |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
return error; |
|
} |
|
|
|
static long adpt_unlocked_ioctl(struct file *file, uint cmd, ulong arg) |
|
{ |
|
struct inode *inode; |
|
long ret; |
|
|
|
inode = file_inode(file); |
|
|
|
mutex_lock(&adpt_mutex); |
|
ret = adpt_ioctl(inode, file, cmd, arg); |
|
mutex_unlock(&adpt_mutex); |
|
|
|
return ret; |
|
} |
|
|
|
#ifdef CONFIG_COMPAT |
|
static long compat_adpt_ioctl(struct file *file, |
|
unsigned int cmd, unsigned long arg) |
|
{ |
|
struct inode *inode; |
|
long ret; |
|
|
|
inode = file_inode(file); |
|
|
|
mutex_lock(&adpt_mutex); |
|
|
|
switch(cmd) { |
|
case DPT_SIGNATURE: |
|
case I2OUSRCMD: |
|
case DPT_CTRLINFO: |
|
case DPT_SYSINFO: |
|
case DPT_BLINKLED: |
|
case I2ORESETCMD: |
|
case I2ORESCANCMD: |
|
case (DPT_TARGET_BUSY & 0xFFFF): |
|
case DPT_TARGET_BUSY: |
|
ret = adpt_ioctl(inode, file, cmd, arg); |
|
break; |
|
default: |
|
ret = -ENOIOCTLCMD; |
|
} |
|
|
|
mutex_unlock(&adpt_mutex); |
|
|
|
return ret; |
|
} |
|
#endif |
|
|
|
static irqreturn_t adpt_isr(int irq, void *dev_id) |
|
{ |
|
struct scsi_cmnd* cmd; |
|
adpt_hba* pHba = dev_id; |
|
u32 m; |
|
void __iomem *reply; |
|
u32 status=0; |
|
u32 context; |
|
ulong flags = 0; |
|
int handled = 0; |
|
|
|
if (pHba == NULL){ |
|
printk(KERN_WARNING"adpt_isr: NULL dev_id\n"); |
|
return IRQ_NONE; |
|
} |
|
if(pHba->host) |
|
spin_lock_irqsave(pHba->host->host_lock, flags); |
|
|
|
while( readl(pHba->irq_mask) & I2O_INTERRUPT_PENDING_B) { |
|
m = readl(pHba->reply_port); |
|
if(m == EMPTY_QUEUE){ |
|
// Try twice then give up |
|
rmb(); |
|
m = readl(pHba->reply_port); |
|
if(m == EMPTY_QUEUE){ |
|
// This really should not happen |
|
printk(KERN_ERR"dpti: Could not get reply frame\n"); |
|
goto out; |
|
} |
|
} |
|
if (pHba->reply_pool_pa <= m && |
|
m < pHba->reply_pool_pa + |
|
(pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4)) { |
|
reply = (u8 *)pHba->reply_pool + |
|
(m - pHba->reply_pool_pa); |
|
} else { |
|
/* Ick, we should *never* be here */ |
|
printk(KERN_ERR "dpti: reply frame not from pool\n"); |
|
reply = (u8 *)bus_to_virt(m); |
|
} |
|
|
|
if (readl(reply) & MSG_FAIL) { |
|
u32 old_m = readl(reply+28); |
|
void __iomem *msg; |
|
u32 old_context; |
|
PDEBUG("%s: Failed message\n",pHba->name); |
|
if(old_m >= 0x100000){ |
|
printk(KERN_ERR"%s: Bad preserved MFA (%x)- dropping frame\n",pHba->name,old_m); |
|
writel(m,pHba->reply_port); |
|
continue; |
|
} |
|
// Transaction context is 0 in failed reply frame |
|
msg = pHba->msg_addr_virt + old_m; |
|
old_context = readl(msg+12); |
|
writel(old_context, reply+12); |
|
adpt_send_nop(pHba, old_m); |
|
} |
|
context = readl(reply+8); |
|
if(context & 0x40000000){ // IOCTL |
|
void *p = adpt_ioctl_from_context(pHba, readl(reply+12)); |
|
if( p != NULL) { |
|
memcpy_fromio(p, reply, REPLY_FRAME_SIZE * 4); |
|
} |
|
// All IOCTLs will also be post wait |
|
} |
|
if(context & 0x80000000){ // Post wait message |
|
status = readl(reply+16); |
|
if(status >> 24){ |
|
status &= 0xffff; /* Get detail status */ |
|
} else { |
|
status = I2O_POST_WAIT_OK; |
|
} |
|
if(!(context & 0x40000000)) { |
|
/* |
|
* The request tag is one less than the command tag |
|
* as the firmware might treat a 0 tag as invalid |
|
*/ |
|
cmd = scsi_host_find_tag(pHba->host, |
|
readl(reply + 12) - 1); |
|
if(cmd != NULL) { |
|
printk(KERN_WARNING"%s: Apparent SCSI cmd in Post Wait Context - cmd=%p context=%x\n", pHba->name, cmd, context); |
|
} |
|
} |
|
adpt_i2o_post_wait_complete(context, status); |
|
} else { // SCSI message |
|
/* |
|
* The request tag is one less than the command tag |
|
* as the firmware might treat a 0 tag as invalid |
|
*/ |
|
cmd = scsi_host_find_tag(pHba->host, |
|
readl(reply + 12) - 1); |
|
if(cmd != NULL){ |
|
scsi_dma_unmap(cmd); |
|
adpt_i2o_scsi_complete(reply, cmd); |
|
} |
|
} |
|
writel(m, pHba->reply_port); |
|
wmb(); |
|
rmb(); |
|
} |
|
handled = 1; |
|
out: if(pHba->host) |
|
spin_unlock_irqrestore(pHba->host->host_lock, flags); |
|
return IRQ_RETVAL(handled); |
|
} |
|
|
|
static s32 adpt_scsi_to_i2o(adpt_hba* pHba, struct scsi_cmnd* cmd, struct adpt_device* d) |
|
{ |
|
int i; |
|
u32 msg[MAX_MESSAGE_SIZE]; |
|
u32* mptr; |
|
u32* lptr; |
|
u32 *lenptr; |
|
int direction; |
|
int scsidir; |
|
int nseg; |
|
u32 len; |
|
u32 reqlen; |
|
s32 rcode; |
|
dma_addr_t addr; |
|
|
|
memset(msg, 0 , sizeof(msg)); |
|
len = scsi_bufflen(cmd); |
|
direction = 0x00000000; |
|
|
|
scsidir = 0x00000000; // DATA NO XFER |
|
if(len) { |
|
/* |
|
* Set SCBFlags to indicate if data is being transferred |
|
* in or out, or no data transfer |
|
* Note: Do not have to verify index is less than 0 since |
|
* cmd->cmnd[0] is an unsigned char |
|
*/ |
|
switch(cmd->sc_data_direction){ |
|
case DMA_FROM_DEVICE: |
|
scsidir =0x40000000; // DATA IN (iop<--dev) |
|
break; |
|
case DMA_TO_DEVICE: |
|
direction=0x04000000; // SGL OUT |
|
scsidir =0x80000000; // DATA OUT (iop-->dev) |
|
break; |
|
case DMA_NONE: |
|
break; |
|
case DMA_BIDIRECTIONAL: |
|
scsidir =0x40000000; // DATA IN (iop<--dev) |
|
// Assume In - and continue; |
|
break; |
|
default: |
|
printk(KERN_WARNING"%s: scsi opcode 0x%x not supported.\n", |
|
pHba->name, cmd->cmnd[0]); |
|
cmd->result = (DID_ERROR <<16); |
|
cmd->scsi_done(cmd); |
|
return 0; |
|
} |
|
} |
|
// msg[0] is set later |
|
// I2O_CMD_SCSI_EXEC |
|
msg[1] = ((0xff<<24)|(HOST_TID<<12)|d->tid); |
|
msg[2] = 0; |
|
/* Add 1 to avoid firmware treating it as invalid command */ |
|
msg[3] = cmd->request->tag + 1; |
|
// Our cards use the transaction context as the tag for queueing |
|
// Adaptec/DPT Private stuff |
|
msg[4] = I2O_CMD_SCSI_EXEC|(DPT_ORGANIZATION_ID<<16); |
|
msg[5] = d->tid; |
|
/* Direction, disconnect ok | sense data | simple queue , CDBLen */ |
|
// I2O_SCB_FLAG_ENABLE_DISCONNECT | |
|
// I2O_SCB_FLAG_SIMPLE_QUEUE_TAG | |
|
// I2O_SCB_FLAG_SENSE_DATA_IN_MESSAGE; |
|
msg[6] = scsidir|0x20a00000|cmd->cmd_len; |
|
|
|
mptr=msg+7; |
|
|
|
// Write SCSI command into the message - always 16 byte block |
|
memset(mptr, 0, 16); |
|
memcpy(mptr, cmd->cmnd, cmd->cmd_len); |
|
mptr+=4; |
|
lenptr=mptr++; /* Remember me - fill in when we know */ |
|
if (dpt_dma64(pHba)) { |
|
reqlen = 16; // SINGLE SGE |
|
*mptr++ = (0x7C<<24)+(2<<16)+0x02; /* Enable 64 bit */ |
|
*mptr++ = 1 << PAGE_SHIFT; |
|
} else { |
|
reqlen = 14; // SINGLE SGE |
|
} |
|
/* Now fill in the SGList and command */ |
|
|
|
nseg = scsi_dma_map(cmd); |
|
BUG_ON(nseg < 0); |
|
if (nseg) { |
|
struct scatterlist *sg; |
|
|
|
len = 0; |
|
scsi_for_each_sg(cmd, sg, nseg, i) { |
|
lptr = mptr; |
|
*mptr++ = direction|0x10000000|sg_dma_len(sg); |
|
len+=sg_dma_len(sg); |
|
addr = sg_dma_address(sg); |
|
*mptr++ = dma_low(addr); |
|
if (dpt_dma64(pHba)) |
|
*mptr++ = dma_high(addr); |
|
/* Make this an end of list */ |
|
if (i == nseg - 1) |
|
*lptr = direction|0xD0000000|sg_dma_len(sg); |
|
} |
|
reqlen = mptr - msg; |
|
*lenptr = len; |
|
|
|
if(cmd->underflow && len != cmd->underflow){ |
|
printk(KERN_WARNING"Cmd len %08X Cmd underflow %08X\n", |
|
len, cmd->underflow); |
|
} |
|
} else { |
|
*lenptr = len = 0; |
|
reqlen = 12; |
|
} |
|
|
|
/* Stick the headers on */ |
|
msg[0] = reqlen<<16 | ((reqlen > 12) ? SGL_OFFSET_12 : SGL_OFFSET_0); |
|
|
|
// Send it on it's way |
|
rcode = adpt_i2o_post_this(pHba, msg, reqlen<<2); |
|
if (rcode == 0) { |
|
return 0; |
|
} |
|
return rcode; |
|
} |
|
|
|
|
|
static s32 adpt_scsi_host_alloc(adpt_hba* pHba, struct scsi_host_template *sht) |
|
{ |
|
struct Scsi_Host *host; |
|
|
|
host = scsi_host_alloc(sht, sizeof(adpt_hba*)); |
|
if (host == NULL) { |
|
printk("%s: scsi_host_alloc returned NULL\n", pHba->name); |
|
return -1; |
|
} |
|
host->hostdata[0] = (unsigned long)pHba; |
|
pHba->host = host; |
|
|
|
host->irq = pHba->pDev->irq; |
|
/* no IO ports, so don't have to set host->io_port and |
|
* host->n_io_port |
|
*/ |
|
host->io_port = 0; |
|
host->n_io_port = 0; |
|
/* see comments in scsi_host.h */ |
|
host->max_id = 16; |
|
host->max_lun = 256; |
|
host->max_channel = pHba->top_scsi_channel + 1; |
|
host->cmd_per_lun = 1; |
|
host->unique_id = (u32)sys_tbl_pa + pHba->unit; |
|
host->sg_tablesize = pHba->sg_tablesize; |
|
host->can_queue = pHba->post_fifo_size; |
|
|
|
return 0; |
|
} |
|
|
|
|
|
static void adpt_i2o_scsi_complete(void __iomem *reply, struct scsi_cmnd *cmd) |
|
{ |
|
adpt_hba* pHba; |
|
u32 hba_status; |
|
u32 dev_status; |
|
u32 reply_flags = readl(reply) & 0xff00; // Leave it shifted up 8 bits |
|
// I know this would look cleaner if I just read bytes |
|
// but the model I have been using for all the rest of the |
|
// io is in 4 byte words - so I keep that model |
|
u16 detailed_status = readl(reply+16) &0xffff; |
|
dev_status = (detailed_status & 0xff); |
|
hba_status = detailed_status >> 8; |
|
|
|
// calculate resid for sg |
|
scsi_set_resid(cmd, scsi_bufflen(cmd) - readl(reply+20)); |
|
|
|
pHba = (adpt_hba*) cmd->device->host->hostdata[0]; |
|
|
|
cmd->sense_buffer[0] = '\0'; // initialize sense valid flag to false |
|
|
|
if(!(reply_flags & MSG_FAIL)) { |
|
switch(detailed_status & I2O_SCSI_DSC_MASK) { |
|
case I2O_SCSI_DSC_SUCCESS: |
|
cmd->result = (DID_OK << 16); |
|
// handle underflow |
|
if (readl(reply+20) < cmd->underflow) { |
|
cmd->result = (DID_ERROR <<16); |
|
printk(KERN_WARNING"%s: SCSI CMD underflow\n",pHba->name); |
|
} |
|
break; |
|
case I2O_SCSI_DSC_REQUEST_ABORTED: |
|
cmd->result = (DID_ABORT << 16); |
|
break; |
|
case I2O_SCSI_DSC_PATH_INVALID: |
|
case I2O_SCSI_DSC_DEVICE_NOT_PRESENT: |
|
case I2O_SCSI_DSC_SELECTION_TIMEOUT: |
|
case I2O_SCSI_DSC_COMMAND_TIMEOUT: |
|
case I2O_SCSI_DSC_NO_ADAPTER: |
|
case I2O_SCSI_DSC_RESOURCE_UNAVAILABLE: |
|
printk(KERN_WARNING"%s: SCSI Timeout-Device (%d,%d,%llu) hba status=0x%x, dev status=0x%x, cmd=0x%x\n", |
|
pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun, hba_status, dev_status, cmd->cmnd[0]); |
|
cmd->result = (DID_TIME_OUT << 16); |
|
break; |
|
case I2O_SCSI_DSC_ADAPTER_BUSY: |
|
case I2O_SCSI_DSC_BUS_BUSY: |
|
cmd->result = (DID_BUS_BUSY << 16); |
|
break; |
|
case I2O_SCSI_DSC_SCSI_BUS_RESET: |
|
case I2O_SCSI_DSC_BDR_MESSAGE_SENT: |
|
cmd->result = (DID_RESET << 16); |
|
break; |
|
case I2O_SCSI_DSC_PARITY_ERROR_FAILURE: |
|
printk(KERN_WARNING"%s: SCSI CMD parity error\n",pHba->name); |
|
cmd->result = (DID_PARITY << 16); |
|
break; |
|
case I2O_SCSI_DSC_UNABLE_TO_ABORT: |
|
case I2O_SCSI_DSC_COMPLETE_WITH_ERROR: |
|
case I2O_SCSI_DSC_UNABLE_TO_TERMINATE: |
|
case I2O_SCSI_DSC_MR_MESSAGE_RECEIVED: |
|
case I2O_SCSI_DSC_AUTOSENSE_FAILED: |
|
case I2O_SCSI_DSC_DATA_OVERRUN: |
|
case I2O_SCSI_DSC_UNEXPECTED_BUS_FREE: |
|
case I2O_SCSI_DSC_SEQUENCE_FAILURE: |
|
case I2O_SCSI_DSC_REQUEST_LENGTH_ERROR: |
|
case I2O_SCSI_DSC_PROVIDE_FAILURE: |
|
case I2O_SCSI_DSC_REQUEST_TERMINATED: |
|
case I2O_SCSI_DSC_IDE_MESSAGE_SENT: |
|
case I2O_SCSI_DSC_UNACKNOWLEDGED_EVENT: |
|
case I2O_SCSI_DSC_MESSAGE_RECEIVED: |
|
case I2O_SCSI_DSC_INVALID_CDB: |
|
case I2O_SCSI_DSC_LUN_INVALID: |
|
case I2O_SCSI_DSC_SCSI_TID_INVALID: |
|
case I2O_SCSI_DSC_FUNCTION_UNAVAILABLE: |
|
case I2O_SCSI_DSC_NO_NEXUS: |
|
case I2O_SCSI_DSC_CDB_RECEIVED: |
|
case I2O_SCSI_DSC_LUN_ALREADY_ENABLED: |
|
case I2O_SCSI_DSC_QUEUE_FROZEN: |
|
case I2O_SCSI_DSC_REQUEST_INVALID: |
|
default: |
|
printk(KERN_WARNING"%s: SCSI error %0x-Device(%d,%d,%llu) hba_status=0x%x, dev_status=0x%x, cmd=0x%x\n", |
|
pHba->name, detailed_status & I2O_SCSI_DSC_MASK, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun, |
|
hba_status, dev_status, cmd->cmnd[0]); |
|
cmd->result = (DID_ERROR << 16); |
|
break; |
|
} |
|
|
|
// copy over the request sense data if it was a check |
|
// condition status |
|
if (dev_status == SAM_STAT_CHECK_CONDITION) { |
|
u32 len = min(SCSI_SENSE_BUFFERSIZE, 40); |
|
// Copy over the sense data |
|
memcpy_fromio(cmd->sense_buffer, (reply+28) , len); |
|
if(cmd->sense_buffer[0] == 0x70 /* class 7 */ && |
|
cmd->sense_buffer[2] == DATA_PROTECT ){ |
|
/* This is to handle an array failed */ |
|
cmd->result = (DID_TIME_OUT << 16); |
|
printk(KERN_WARNING"%s: SCSI Data Protect-Device (%d,%d,%llu) hba_status=0x%x, dev_status=0x%x, cmd=0x%x\n", |
|
pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun, |
|
hba_status, dev_status, cmd->cmnd[0]); |
|
|
|
} |
|
} |
|
} else { |
|
/* In this condtion we could not talk to the tid |
|
* the card rejected it. We should signal a retry |
|
* for a limitted number of retries. |
|
*/ |
|
cmd->result = (DID_TIME_OUT << 16); |
|
printk(KERN_WARNING"%s: I2O MSG_FAIL - Device (%d,%d,%llu) tid=%d, cmd=0x%x\n", |
|
pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun, |
|
((struct adpt_device*)(cmd->device->hostdata))->tid, cmd->cmnd[0]); |
|
} |
|
|
|
cmd->result |= (dev_status); |
|
|
|
if(cmd->scsi_done != NULL){ |
|
cmd->scsi_done(cmd); |
|
} |
|
} |
|
|
|
|
|
static s32 adpt_rescan(adpt_hba* pHba) |
|
{ |
|
s32 rcode; |
|
ulong flags = 0; |
|
|
|
if(pHba->host) |
|
spin_lock_irqsave(pHba->host->host_lock, flags); |
|
if ((rcode=adpt_i2o_lct_get(pHba)) < 0) |
|
goto out; |
|
if ((rcode=adpt_i2o_reparse_lct(pHba)) < 0) |
|
goto out; |
|
rcode = 0; |
|
out: if(pHba->host) |
|
spin_unlock_irqrestore(pHba->host->host_lock, flags); |
|
return rcode; |
|
} |
|
|
|
|
|
static s32 adpt_i2o_reparse_lct(adpt_hba* pHba) |
|
{ |
|
int i; |
|
int max; |
|
int tid; |
|
struct i2o_device *d; |
|
i2o_lct *lct = pHba->lct; |
|
u8 bus_no = 0; |
|
s16 scsi_id; |
|
u64 scsi_lun; |
|
u32 buf[10]; // at least 8 u32's |
|
struct adpt_device* pDev = NULL; |
|
struct i2o_device* pI2o_dev = NULL; |
|
|
|
if (lct == NULL) { |
|
printk(KERN_ERR "%s: LCT is empty???\n",pHba->name); |
|
return -1; |
|
} |
|
|
|
max = lct->table_size; |
|
max -= 3; |
|
max /= 9; |
|
|
|
// Mark each drive as unscanned |
|
for (d = pHba->devices; d; d = d->next) { |
|
pDev =(struct adpt_device*) d->owner; |
|
if(!pDev){ |
|
continue; |
|
} |
|
pDev->state |= DPTI_DEV_UNSCANNED; |
|
} |
|
|
|
printk(KERN_INFO "%s: LCT has %d entries.\n", pHba->name,max); |
|
|
|
for(i=0;i<max;i++) { |
|
if( lct->lct_entry[i].user_tid != 0xfff){ |
|
continue; |
|
} |
|
|
|
if( lct->lct_entry[i].class_id == I2O_CLASS_RANDOM_BLOCK_STORAGE || |
|
lct->lct_entry[i].class_id == I2O_CLASS_SCSI_PERIPHERAL || |
|
lct->lct_entry[i].class_id == I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL ){ |
|
tid = lct->lct_entry[i].tid; |
|
if(adpt_i2o_query_scalar(pHba, tid, 0x8000, -1, buf, 32)<0) { |
|
printk(KERN_ERR"%s: Could not query device\n",pHba->name); |
|
continue; |
|
} |
|
bus_no = buf[0]>>16; |
|
if (bus_no >= MAX_CHANNEL) { /* Something wrong skip it */ |
|
printk(KERN_WARNING |
|
"%s: Channel number %d out of range\n", |
|
pHba->name, bus_no); |
|
continue; |
|
} |
|
|
|
scsi_id = buf[1]; |
|
scsi_lun = scsilun_to_int((struct scsi_lun *)&buf[2]); |
|
pDev = pHba->channel[bus_no].device[scsi_id]; |
|
/* da lun */ |
|
while(pDev) { |
|
if(pDev->scsi_lun == scsi_lun) { |
|
break; |
|
} |
|
pDev = pDev->next_lun; |
|
} |
|
if(!pDev ) { // Something new add it |
|
d = kmalloc(sizeof(struct i2o_device), |
|
GFP_ATOMIC); |
|
if(d==NULL) |
|
{ |
|
printk(KERN_CRIT "Out of memory for I2O device data.\n"); |
|
return -ENOMEM; |
|
} |
|
|
|
d->controller = pHba; |
|
d->next = NULL; |
|
|
|
memcpy(&d->lct_data, &lct->lct_entry[i], sizeof(i2o_lct_entry)); |
|
|
|
d->flags = 0; |
|
adpt_i2o_report_hba_unit(pHba, d); |
|
adpt_i2o_install_device(pHba, d); |
|
|
|
pDev = pHba->channel[bus_no].device[scsi_id]; |
|
if( pDev == NULL){ |
|
pDev = |
|
kzalloc(sizeof(struct adpt_device), |
|
GFP_ATOMIC); |
|
if(pDev == NULL) { |
|
return -ENOMEM; |
|
} |
|
pHba->channel[bus_no].device[scsi_id] = pDev; |
|
} else { |
|
while (pDev->next_lun) { |
|
pDev = pDev->next_lun; |
|
} |
|
pDev = pDev->next_lun = |
|
kzalloc(sizeof(struct adpt_device), |
|
GFP_ATOMIC); |
|
if(pDev == NULL) { |
|
return -ENOMEM; |
|
} |
|
} |
|
pDev->tid = d->lct_data.tid; |
|
pDev->scsi_channel = bus_no; |
|
pDev->scsi_id = scsi_id; |
|
pDev->scsi_lun = scsi_lun; |
|
pDev->pI2o_dev = d; |
|
d->owner = pDev; |
|
pDev->type = (buf[0])&0xff; |
|
pDev->flags = (buf[0]>>8)&0xff; |
|
// Too late, SCSI system has made up it's mind, but what the hey ... |
|
if(scsi_id > pHba->top_scsi_id){ |
|
pHba->top_scsi_id = scsi_id; |
|
} |
|
if(scsi_lun > pHba->top_scsi_lun){ |
|
pHba->top_scsi_lun = scsi_lun; |
|
} |
|
continue; |
|
} // end of new i2o device |
|
|
|
// We found an old device - check it |
|
while(pDev) { |
|
if(pDev->scsi_lun == scsi_lun) { |
|
if(!scsi_device_online(pDev->pScsi_dev)) { |
|
printk(KERN_WARNING"%s: Setting device (%d,%d,%llu) back online\n", |
|
pHba->name,bus_no,scsi_id,scsi_lun); |
|
if (pDev->pScsi_dev) { |
|
scsi_device_set_state(pDev->pScsi_dev, SDEV_RUNNING); |
|
} |
|
} |
|
d = pDev->pI2o_dev; |
|
if(d->lct_data.tid != tid) { // something changed |
|
pDev->tid = tid; |
|
memcpy(&d->lct_data, &lct->lct_entry[i], sizeof(i2o_lct_entry)); |
|
if (pDev->pScsi_dev) { |
|
pDev->pScsi_dev->changed = TRUE; |
|
pDev->pScsi_dev->removable = TRUE; |
|
} |
|
} |
|
// Found it - mark it scanned |
|
pDev->state = DPTI_DEV_ONLINE; |
|
break; |
|
} |
|
pDev = pDev->next_lun; |
|
} |
|
} |
|
} |
|
for (pI2o_dev = pHba->devices; pI2o_dev; pI2o_dev = pI2o_dev->next) { |
|
pDev =(struct adpt_device*) pI2o_dev->owner; |
|
if(!pDev){ |
|
continue; |
|
} |
|
// Drive offline drives that previously existed but could not be found |
|
// in the LCT table |
|
if (pDev->state & DPTI_DEV_UNSCANNED){ |
|
pDev->state = DPTI_DEV_OFFLINE; |
|
printk(KERN_WARNING"%s: Device (%d,%d,%llu) offline\n",pHba->name,pDev->scsi_channel,pDev->scsi_id,pDev->scsi_lun); |
|
if (pDev->pScsi_dev) { |
|
scsi_device_set_state(pDev->pScsi_dev, SDEV_OFFLINE); |
|
} |
|
} |
|
} |
|
return 0; |
|
} |
|
|
|
/*============================================================================ |
|
* Routines from i2o subsystem |
|
*============================================================================ |
|
*/ |
|
|
|
|
|
|
|
/* |
|
* Bring an I2O controller into HOLD state. See the spec. |
|
*/ |
|
static int adpt_i2o_activate_hba(adpt_hba* pHba) |
|
{ |
|
int rcode; |
|
|
|
if(pHba->initialized ) { |
|
if (adpt_i2o_status_get(pHba) < 0) { |
|
if((rcode = adpt_i2o_reset_hba(pHba)) != 0){ |
|
printk(KERN_WARNING"%s: Could NOT reset.\n", pHba->name); |
|
return rcode; |
|
} |
|
if (adpt_i2o_status_get(pHba) < 0) { |
|
printk(KERN_INFO "HBA not responding.\n"); |
|
return -1; |
|
} |
|
} |
|
|
|
if(pHba->status_block->iop_state == ADAPTER_STATE_FAULTED) { |
|
printk(KERN_CRIT "%s: hardware fault\n", pHba->name); |
|
return -1; |
|
} |
|
|
|
if (pHba->status_block->iop_state == ADAPTER_STATE_READY || |
|
pHba->status_block->iop_state == ADAPTER_STATE_OPERATIONAL || |
|
pHba->status_block->iop_state == ADAPTER_STATE_HOLD || |
|
pHba->status_block->iop_state == ADAPTER_STATE_FAILED) { |
|
adpt_i2o_reset_hba(pHba); |
|
if (adpt_i2o_status_get(pHba) < 0 || pHba->status_block->iop_state != ADAPTER_STATE_RESET) { |
|
printk(KERN_ERR "%s: Failed to initialize.\n", pHba->name); |
|
return -1; |
|
} |
|
} |
|
} else { |
|
if((rcode = adpt_i2o_reset_hba(pHba)) != 0){ |
|
printk(KERN_WARNING"%s: Could NOT reset.\n", pHba->name); |
|
return rcode; |
|
} |
|
|
|
} |
|
|
|
if (adpt_i2o_init_outbound_q(pHba) < 0) { |
|
return -1; |
|
} |
|
|
|
/* In HOLD state */ |
|
|
|
if (adpt_i2o_hrt_get(pHba) < 0) { |
|
return -1; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
/* |
|
* Bring a controller online into OPERATIONAL state. |
|
*/ |
|
|
|
static int adpt_i2o_online_hba(adpt_hba* pHba) |
|
{ |
|
if (adpt_i2o_systab_send(pHba) < 0) |
|
return -1; |
|
/* In READY state */ |
|
|
|
if (adpt_i2o_enable_hba(pHba) < 0) |
|
return -1; |
|
|
|
/* In OPERATIONAL state */ |
|
return 0; |
|
} |
|
|
|
static s32 adpt_send_nop(adpt_hba*pHba,u32 m) |
|
{ |
|
u32 __iomem *msg; |
|
ulong timeout = jiffies + 5*HZ; |
|
|
|
while(m == EMPTY_QUEUE){ |
|
rmb(); |
|
m = readl(pHba->post_port); |
|
if(m != EMPTY_QUEUE){ |
|
break; |
|
} |
|
if(time_after(jiffies,timeout)){ |
|
printk(KERN_ERR "%s: Timeout waiting for message frame!\n",pHba->name); |
|
return 2; |
|
} |
|
schedule_timeout_uninterruptible(1); |
|
} |
|
msg = (u32 __iomem *)(pHba->msg_addr_virt + m); |
|
writel( THREE_WORD_MSG_SIZE | SGL_OFFSET_0,&msg[0]); |
|
writel( I2O_CMD_UTIL_NOP << 24 | HOST_TID << 12 | 0,&msg[1]); |
|
writel( 0,&msg[2]); |
|
wmb(); |
|
|
|
writel(m, pHba->post_port); |
|
wmb(); |
|
return 0; |
|
} |
|
|
|
static s32 adpt_i2o_init_outbound_q(adpt_hba* pHba) |
|
{ |
|
u8 *status; |
|
dma_addr_t addr; |
|
u32 __iomem *msg = NULL; |
|
int i; |
|
ulong timeout = jiffies + TMOUT_INITOUTBOUND*HZ; |
|
u32 m; |
|
|
|
do { |
|
rmb(); |
|
m = readl(pHba->post_port); |
|
if (m != EMPTY_QUEUE) { |
|
break; |
|
} |
|
|
|
if(time_after(jiffies,timeout)){ |
|
printk(KERN_WARNING"%s: Timeout waiting for message frame\n",pHba->name); |
|
return -ETIMEDOUT; |
|
} |
|
schedule_timeout_uninterruptible(1); |
|
} while(m == EMPTY_QUEUE); |
|
|
|
msg=(u32 __iomem *)(pHba->msg_addr_virt+m); |
|
|
|
status = dma_alloc_coherent(&pHba->pDev->dev, 4, &addr, GFP_KERNEL); |
|
if (!status) { |
|
adpt_send_nop(pHba, m); |
|
printk(KERN_WARNING"%s: IOP reset failed - no free memory.\n", |
|
pHba->name); |
|
return -ENOMEM; |
|
} |
|
|
|
writel(EIGHT_WORD_MSG_SIZE| SGL_OFFSET_6, &msg[0]); |
|
writel(I2O_CMD_OUTBOUND_INIT<<24 | HOST_TID<<12 | ADAPTER_TID, &msg[1]); |
|
writel(0, &msg[2]); |
|
writel(0x0106, &msg[3]); /* Transaction context */ |
|
writel(4096, &msg[4]); /* Host page frame size */ |
|
writel((REPLY_FRAME_SIZE)<<16|0x80, &msg[5]); /* Outbound msg frame size and Initcode */ |
|
writel(0xD0000004, &msg[6]); /* Simple SG LE, EOB */ |
|
writel((u32)addr, &msg[7]); |
|
|
|
writel(m, pHba->post_port); |
|
wmb(); |
|
|
|
// Wait for the reply status to come back |
|
do { |
|
if (*status) { |
|
if (*status != 0x01 /*I2O_EXEC_OUTBOUND_INIT_IN_PROGRESS*/) { |
|
break; |
|
} |
|
} |
|
rmb(); |
|
if(time_after(jiffies,timeout)){ |
|
printk(KERN_WARNING"%s: Timeout Initializing\n",pHba->name); |
|
/* We lose 4 bytes of "status" here, but we |
|
cannot free these because controller may |
|
awake and corrupt those bytes at any time */ |
|
/* dma_free_coherent(&pHba->pDev->dev, 4, status, addr); */ |
|
return -ETIMEDOUT; |
|
} |
|
schedule_timeout_uninterruptible(1); |
|
} while (1); |
|
|
|
// If the command was successful, fill the fifo with our reply |
|
// message packets |
|
if(*status != 0x04 /*I2O_EXEC_OUTBOUND_INIT_COMPLETE*/) { |
|
dma_free_coherent(&pHba->pDev->dev, 4, status, addr); |
|
return -2; |
|
} |
|
dma_free_coherent(&pHba->pDev->dev, 4, status, addr); |
|
|
|
if(pHba->reply_pool != NULL) { |
|
dma_free_coherent(&pHba->pDev->dev, |
|
pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4, |
|
pHba->reply_pool, pHba->reply_pool_pa); |
|
} |
|
|
|
pHba->reply_pool = dma_alloc_coherent(&pHba->pDev->dev, |
|
pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4, |
|
&pHba->reply_pool_pa, GFP_KERNEL); |
|
if (!pHba->reply_pool) { |
|
printk(KERN_ERR "%s: Could not allocate reply pool\n", pHba->name); |
|
return -ENOMEM; |
|
} |
|
|
|
for(i = 0; i < pHba->reply_fifo_size; i++) { |
|
writel(pHba->reply_pool_pa + (i * REPLY_FRAME_SIZE * 4), |
|
pHba->reply_port); |
|
wmb(); |
|
} |
|
adpt_i2o_status_get(pHba); |
|
return 0; |
|
} |
|
|
|
|
|
/* |
|
* I2O System Table. Contains information about |
|
* all the IOPs in the system. Used to inform IOPs |
|
* about each other's existence. |
|
* |
|
* sys_tbl_ver is the CurrentChangeIndicator that is |
|
* used by IOPs to track changes. |
|
*/ |
|
|
|
|
|
|
|
static s32 adpt_i2o_status_get(adpt_hba* pHba) |
|
{ |
|
ulong timeout; |
|
u32 m; |
|
u32 __iomem *msg; |
|
u8 *status_block=NULL; |
|
|
|
if(pHba->status_block == NULL) { |
|
pHba->status_block = dma_alloc_coherent(&pHba->pDev->dev, |
|
sizeof(i2o_status_block), |
|
&pHba->status_block_pa, GFP_KERNEL); |
|
if(pHba->status_block == NULL) { |
|
printk(KERN_ERR |
|
"dpti%d: Get Status Block failed; Out of memory. \n", |
|
pHba->unit); |
|
return -ENOMEM; |
|
} |
|
} |
|
memset(pHba->status_block, 0, sizeof(i2o_status_block)); |
|
status_block = (u8*)(pHba->status_block); |
|
timeout = jiffies+TMOUT_GETSTATUS*HZ; |
|
do { |
|
rmb(); |
|
m = readl(pHba->post_port); |
|
if (m != EMPTY_QUEUE) { |
|
break; |
|
} |
|
if(time_after(jiffies,timeout)){ |
|
printk(KERN_ERR "%s: Timeout waiting for message !\n", |
|
pHba->name); |
|
return -ETIMEDOUT; |
|
} |
|
schedule_timeout_uninterruptible(1); |
|
} while(m==EMPTY_QUEUE); |
|
|
|
|
|
msg=(u32 __iomem *)(pHba->msg_addr_virt+m); |
|
|
|
writel(NINE_WORD_MSG_SIZE|SGL_OFFSET_0, &msg[0]); |
|
writel(I2O_CMD_STATUS_GET<<24|HOST_TID<<12|ADAPTER_TID, &msg[1]); |
|
writel(1, &msg[2]); |
|
writel(0, &msg[3]); |
|
writel(0, &msg[4]); |
|
writel(0, &msg[5]); |
|
writel( dma_low(pHba->status_block_pa), &msg[6]); |
|
writel( dma_high(pHba->status_block_pa), &msg[7]); |
|
writel(sizeof(i2o_status_block), &msg[8]); // 88 bytes |
|
|
|
//post message |
|
writel(m, pHba->post_port); |
|
wmb(); |
|
|
|
while(status_block[87]!=0xff){ |
|
if(time_after(jiffies,timeout)){ |
|
printk(KERN_ERR"dpti%d: Get status timeout.\n", |
|
pHba->unit); |
|
return -ETIMEDOUT; |
|
} |
|
rmb(); |
|
schedule_timeout_uninterruptible(1); |
|
} |
|
|
|
// Set up our number of outbound and inbound messages |
|
pHba->post_fifo_size = pHba->status_block->max_inbound_frames; |
|
if (pHba->post_fifo_size > MAX_TO_IOP_MESSAGES) { |
|
pHba->post_fifo_size = MAX_TO_IOP_MESSAGES; |
|
} |
|
|
|
pHba->reply_fifo_size = pHba->status_block->max_outbound_frames; |
|
if (pHba->reply_fifo_size > MAX_FROM_IOP_MESSAGES) { |
|
pHba->reply_fifo_size = MAX_FROM_IOP_MESSAGES; |
|
} |
|
|
|
// Calculate the Scatter Gather list size |
|
if (dpt_dma64(pHba)) { |
|
pHba->sg_tablesize |
|
= ((pHba->status_block->inbound_frame_size * 4 |
|
- 14 * sizeof(u32)) |
|
/ (sizeof(struct sg_simple_element) + sizeof(u32))); |
|
} else { |
|
pHba->sg_tablesize |
|
= ((pHba->status_block->inbound_frame_size * 4 |
|
- 12 * sizeof(u32)) |
|
/ sizeof(struct sg_simple_element)); |
|
} |
|
if (pHba->sg_tablesize > SG_LIST_ELEMENTS) { |
|
pHba->sg_tablesize = SG_LIST_ELEMENTS; |
|
} |
|
|
|
|
|
#ifdef DEBUG |
|
printk("dpti%d: State = ",pHba->unit); |
|
switch(pHba->status_block->iop_state) { |
|
case 0x01: |
|
printk("INIT\n"); |
|
break; |
|
case 0x02: |
|
printk("RESET\n"); |
|
break; |
|
case 0x04: |
|
printk("HOLD\n"); |
|
break; |
|
case 0x05: |
|
printk("READY\n"); |
|
break; |
|
case 0x08: |
|
printk("OPERATIONAL\n"); |
|
break; |
|
case 0x10: |
|
printk("FAILED\n"); |
|
break; |
|
case 0x11: |
|
printk("FAULTED\n"); |
|
break; |
|
default: |
|
printk("%x (unknown!!)\n",pHba->status_block->iop_state); |
|
} |
|
#endif |
|
return 0; |
|
} |
|
|
|
/* |
|
* Get the IOP's Logical Configuration Table |
|
*/ |
|
static int adpt_i2o_lct_get(adpt_hba* pHba) |
|
{ |
|
u32 msg[8]; |
|
int ret; |
|
u32 buf[16]; |
|
|
|
if ((pHba->lct_size == 0) || (pHba->lct == NULL)){ |
|
pHba->lct_size = pHba->status_block->expected_lct_size; |
|
} |
|
do { |
|
if (pHba->lct == NULL) { |
|
pHba->lct = dma_alloc_coherent(&pHba->pDev->dev, |
|
pHba->lct_size, &pHba->lct_pa, |
|
GFP_ATOMIC); |
|
if(pHba->lct == NULL) { |
|
printk(KERN_CRIT "%s: Lct Get failed. Out of memory.\n", |
|
pHba->name); |
|
return -ENOMEM; |
|
} |
|
} |
|
memset(pHba->lct, 0, pHba->lct_size); |
|
|
|
msg[0] = EIGHT_WORD_MSG_SIZE|SGL_OFFSET_6; |
|
msg[1] = I2O_CMD_LCT_NOTIFY<<24 | HOST_TID<<12 | ADAPTER_TID; |
|
msg[2] = 0; |
|
msg[3] = 0; |
|
msg[4] = 0xFFFFFFFF; /* All devices */ |
|
msg[5] = 0x00000000; /* Report now */ |
|
msg[6] = 0xD0000000|pHba->lct_size; |
|
msg[7] = (u32)pHba->lct_pa; |
|
|
|
if ((ret=adpt_i2o_post_wait(pHba, msg, sizeof(msg), 360))) { |
|
printk(KERN_ERR "%s: LCT Get failed (status=%#10x.\n", |
|
pHba->name, ret); |
|
printk(KERN_ERR"Adaptec: Error Reading Hardware.\n"); |
|
return ret; |
|
} |
|
|
|
if ((pHba->lct->table_size << 2) > pHba->lct_size) { |
|
pHba->lct_size = pHba->lct->table_size << 2; |
|
dma_free_coherent(&pHba->pDev->dev, pHba->lct_size, |
|
pHba->lct, pHba->lct_pa); |
|
pHba->lct = NULL; |
|
} |
|
} while (pHba->lct == NULL); |
|
|
|
PDEBUG("%s: Hardware resource table read.\n", pHba->name); |
|
|
|
|
|
// I2O_DPT_EXEC_IOP_BUFFERS_GROUP_NO; |
|
if(adpt_i2o_query_scalar(pHba, 0 , 0x8000, -1, buf, sizeof(buf))>=0) { |
|
pHba->FwDebugBufferSize = buf[1]; |
|
pHba->FwDebugBuffer_P = ioremap(pHba->base_addr_phys + buf[0], |
|
pHba->FwDebugBufferSize); |
|
if (pHba->FwDebugBuffer_P) { |
|
pHba->FwDebugFlags_P = pHba->FwDebugBuffer_P + |
|
FW_DEBUG_FLAGS_OFFSET; |
|
pHba->FwDebugBLEDvalue_P = pHba->FwDebugBuffer_P + |
|
FW_DEBUG_BLED_OFFSET; |
|
pHba->FwDebugBLEDflag_P = pHba->FwDebugBLEDvalue_P + 1; |
|
pHba->FwDebugStrLength_P = pHba->FwDebugBuffer_P + |
|
FW_DEBUG_STR_LENGTH_OFFSET; |
|
pHba->FwDebugBuffer_P += buf[2]; |
|
pHba->FwDebugFlags = 0; |
|
} |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int adpt_i2o_build_sys_table(void) |
|
{ |
|
adpt_hba* pHba = hba_chain; |
|
int count = 0; |
|
|
|
if (sys_tbl) |
|
dma_free_coherent(&pHba->pDev->dev, sys_tbl_len, |
|
sys_tbl, sys_tbl_pa); |
|
|
|
sys_tbl_len = sizeof(struct i2o_sys_tbl) + // Header + IOPs |
|
(hba_count) * sizeof(struct i2o_sys_tbl_entry); |
|
|
|
sys_tbl = dma_alloc_coherent(&pHba->pDev->dev, |
|
sys_tbl_len, &sys_tbl_pa, GFP_KERNEL); |
|
if (!sys_tbl) { |
|
printk(KERN_WARNING "SysTab Set failed. Out of memory.\n"); |
|
return -ENOMEM; |
|
} |
|
|
|
sys_tbl->num_entries = hba_count; |
|
sys_tbl->version = I2OVERSION; |
|
sys_tbl->change_ind = sys_tbl_ind++; |
|
|
|
for(pHba = hba_chain; pHba; pHba = pHba->next) { |
|
u64 addr; |
|
// Get updated Status Block so we have the latest information |
|
if (adpt_i2o_status_get(pHba)) { |
|
sys_tbl->num_entries--; |
|
continue; // try next one |
|
} |
|
|
|
sys_tbl->iops[count].org_id = pHba->status_block->org_id; |
|
sys_tbl->iops[count].iop_id = pHba->unit + 2; |
|
sys_tbl->iops[count].seg_num = 0; |
|
sys_tbl->iops[count].i2o_version = pHba->status_block->i2o_version; |
|
sys_tbl->iops[count].iop_state = pHba->status_block->iop_state; |
|
sys_tbl->iops[count].msg_type = pHba->status_block->msg_type; |
|
sys_tbl->iops[count].frame_size = pHba->status_block->inbound_frame_size; |
|
sys_tbl->iops[count].last_changed = sys_tbl_ind - 1; // ?? |
|
sys_tbl->iops[count].iop_capabilities = pHba->status_block->iop_capabilities; |
|
addr = pHba->base_addr_phys + 0x40; |
|
sys_tbl->iops[count].inbound_low = dma_low(addr); |
|
sys_tbl->iops[count].inbound_high = dma_high(addr); |
|
|
|
count++; |
|
} |
|
|
|
#ifdef DEBUG |
|
{ |
|
u32 *table = (u32*)sys_tbl; |
|
printk(KERN_DEBUG"sys_tbl_len=%d in 32bit words\n",(sys_tbl_len >>2)); |
|
for(count = 0; count < (sys_tbl_len >>2); count++) { |
|
printk(KERN_INFO "sys_tbl[%d] = %0#10x\n", |
|
count, table[count]); |
|
} |
|
} |
|
#endif |
|
|
|
return 0; |
|
} |
|
|
|
|
|
/* |
|
* Dump the information block associated with a given unit (TID) |
|
*/ |
|
|
|
static void adpt_i2o_report_hba_unit(adpt_hba* pHba, struct i2o_device *d) |
|
{ |
|
char buf[64]; |
|
int unit = d->lct_data.tid; |
|
|
|
printk(KERN_INFO "TID %3.3d ", unit); |
|
|
|
if(adpt_i2o_query_scalar(pHba, unit, 0xF100, 3, buf, 16)>=0) |
|
{ |
|
buf[16]=0; |
|
printk(" Vendor: %-12.12s", buf); |
|
} |
|
if(adpt_i2o_query_scalar(pHba, unit, 0xF100, 4, buf, 16)>=0) |
|
{ |
|
buf[16]=0; |
|
printk(" Device: %-12.12s", buf); |
|
} |
|
if(adpt_i2o_query_scalar(pHba, unit, 0xF100, 6, buf, 8)>=0) |
|
{ |
|
buf[8]=0; |
|
printk(" Rev: %-12.12s\n", buf); |
|
} |
|
#ifdef DEBUG |
|
printk(KERN_INFO "\tClass: %.21s\n", adpt_i2o_get_class_name(d->lct_data.class_id)); |
|
printk(KERN_INFO "\tSubclass: 0x%04X\n", d->lct_data.sub_class); |
|
printk(KERN_INFO "\tFlags: "); |
|
|
|
if(d->lct_data.device_flags&(1<<0)) |
|
printk("C"); // ConfigDialog requested |
|
if(d->lct_data.device_flags&(1<<1)) |
|
printk("U"); // Multi-user capable |
|
if(!(d->lct_data.device_flags&(1<<4))) |
|
printk("P"); // Peer service enabled! |
|
if(!(d->lct_data.device_flags&(1<<5))) |
|
printk("M"); // Mgmt service enabled! |
|
printk("\n"); |
|
#endif |
|
} |
|
|
|
#ifdef DEBUG |
|
/* |
|
* Do i2o class name lookup |
|
*/ |
|
static const char *adpt_i2o_get_class_name(int class) |
|
{ |
|
int idx = 16; |
|
static char *i2o_class_name[] = { |
|
"Executive", |
|
"Device Driver Module", |
|
"Block Device", |
|
"Tape Device", |
|
"LAN Interface", |
|
"WAN Interface", |
|
"Fibre Channel Port", |
|
"Fibre Channel Device", |
|
"SCSI Device", |
|
"ATE Port", |
|
"ATE Device", |
|
"Floppy Controller", |
|
"Floppy Device", |
|
"Secondary Bus Port", |
|
"Peer Transport Agent", |
|
"Peer Transport", |
|
"Unknown" |
|
}; |
|
|
|
switch(class&0xFFF) { |
|
case I2O_CLASS_EXECUTIVE: |
|
idx = 0; break; |
|
case I2O_CLASS_DDM: |
|
idx = 1; break; |
|
case I2O_CLASS_RANDOM_BLOCK_STORAGE: |
|
idx = 2; break; |
|
case I2O_CLASS_SEQUENTIAL_STORAGE: |
|
idx = 3; break; |
|
case I2O_CLASS_LAN: |
|
idx = 4; break; |
|
case I2O_CLASS_WAN: |
|
idx = 5; break; |
|
case I2O_CLASS_FIBRE_CHANNEL_PORT: |
|
idx = 6; break; |
|
case I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL: |
|
idx = 7; break; |
|
case I2O_CLASS_SCSI_PERIPHERAL: |
|
idx = 8; break; |
|
case I2O_CLASS_ATE_PORT: |
|
idx = 9; break; |
|
case I2O_CLASS_ATE_PERIPHERAL: |
|
idx = 10; break; |
|
case I2O_CLASS_FLOPPY_CONTROLLER: |
|
idx = 11; break; |
|
case I2O_CLASS_FLOPPY_DEVICE: |
|
idx = 12; break; |
|
case I2O_CLASS_BUS_ADAPTER_PORT: |
|
idx = 13; break; |
|
case I2O_CLASS_PEER_TRANSPORT_AGENT: |
|
idx = 14; break; |
|
case I2O_CLASS_PEER_TRANSPORT: |
|
idx = 15; break; |
|
} |
|
return i2o_class_name[idx]; |
|
} |
|
#endif |
|
|
|
|
|
static s32 adpt_i2o_hrt_get(adpt_hba* pHba) |
|
{ |
|
u32 msg[6]; |
|
int ret, size = sizeof(i2o_hrt); |
|
|
|
do { |
|
if (pHba->hrt == NULL) { |
|
pHba->hrt = dma_alloc_coherent(&pHba->pDev->dev, |
|
size, &pHba->hrt_pa, GFP_KERNEL); |
|
if (pHba->hrt == NULL) { |
|
printk(KERN_CRIT "%s: Hrt Get failed; Out of memory.\n", pHba->name); |
|
return -ENOMEM; |
|
} |
|
} |
|
|
|
msg[0]= SIX_WORD_MSG_SIZE| SGL_OFFSET_4; |
|
msg[1]= I2O_CMD_HRT_GET<<24 | HOST_TID<<12 | ADAPTER_TID; |
|
msg[2]= 0; |
|
msg[3]= 0; |
|
msg[4]= (0xD0000000 | size); /* Simple transaction */ |
|
msg[5]= (u32)pHba->hrt_pa; /* Dump it here */ |
|
|
|
if ((ret = adpt_i2o_post_wait(pHba, msg, sizeof(msg),20))) { |
|
printk(KERN_ERR "%s: Unable to get HRT (status=%#10x)\n", pHba->name, ret); |
|
return ret; |
|
} |
|
|
|
if (pHba->hrt->num_entries * pHba->hrt->entry_len << 2 > size) { |
|
int newsize = pHba->hrt->num_entries * pHba->hrt->entry_len << 2; |
|
dma_free_coherent(&pHba->pDev->dev, size, |
|
pHba->hrt, pHba->hrt_pa); |
|
size = newsize; |
|
pHba->hrt = NULL; |
|
} |
|
} while(pHba->hrt == NULL); |
|
return 0; |
|
} |
|
|
|
/* |
|
* Query one scalar group value or a whole scalar group. |
|
*/ |
|
static int adpt_i2o_query_scalar(adpt_hba* pHba, int tid, |
|
int group, int field, void *buf, int buflen) |
|
{ |
|
u16 opblk[] = { 1, 0, I2O_PARAMS_FIELD_GET, group, 1, field }; |
|
u8 *opblk_va; |
|
dma_addr_t opblk_pa; |
|
u8 *resblk_va; |
|
dma_addr_t resblk_pa; |
|
|
|
int size; |
|
|
|
/* 8 bytes for header */ |
|
resblk_va = dma_alloc_coherent(&pHba->pDev->dev, |
|
sizeof(u8) * (8 + buflen), &resblk_pa, GFP_KERNEL); |
|
if (resblk_va == NULL) { |
|
printk(KERN_CRIT "%s: query scalar failed; Out of memory.\n", pHba->name); |
|
return -ENOMEM; |
|
} |
|
|
|
opblk_va = dma_alloc_coherent(&pHba->pDev->dev, |
|
sizeof(opblk), &opblk_pa, GFP_KERNEL); |
|
if (opblk_va == NULL) { |
|
dma_free_coherent(&pHba->pDev->dev, sizeof(u8) * (8+buflen), |
|
resblk_va, resblk_pa); |
|
printk(KERN_CRIT "%s: query operation failed; Out of memory.\n", |
|
pHba->name); |
|
return -ENOMEM; |
|
} |
|
if (field == -1) /* whole group */ |
|
opblk[4] = -1; |
|
|
|
memcpy(opblk_va, opblk, sizeof(opblk)); |
|
size = adpt_i2o_issue_params(I2O_CMD_UTIL_PARAMS_GET, pHba, tid, |
|
opblk_va, opblk_pa, sizeof(opblk), |
|
resblk_va, resblk_pa, sizeof(u8)*(8+buflen)); |
|
dma_free_coherent(&pHba->pDev->dev, sizeof(opblk), opblk_va, opblk_pa); |
|
if (size == -ETIME) { |
|
dma_free_coherent(&pHba->pDev->dev, sizeof(u8) * (8+buflen), |
|
resblk_va, resblk_pa); |
|
printk(KERN_WARNING "%s: issue params failed; Timed out.\n", pHba->name); |
|
return -ETIME; |
|
} else if (size == -EINTR) { |
|
dma_free_coherent(&pHba->pDev->dev, sizeof(u8) * (8+buflen), |
|
resblk_va, resblk_pa); |
|
printk(KERN_WARNING "%s: issue params failed; Interrupted.\n", pHba->name); |
|
return -EINTR; |
|
} |
|
|
|
memcpy(buf, resblk_va+8, buflen); /* cut off header */ |
|
|
|
dma_free_coherent(&pHba->pDev->dev, sizeof(u8) * (8+buflen), |
|
resblk_va, resblk_pa); |
|
if (size < 0) |
|
return size; |
|
|
|
return buflen; |
|
} |
|
|
|
|
|
/* Issue UTIL_PARAMS_GET or UTIL_PARAMS_SET |
|
* |
|
* This function can be used for all UtilParamsGet/Set operations. |
|
* The OperationBlock is given in opblk-buffer, |
|
* and results are returned in resblk-buffer. |
|
* Note that the minimum sized resblk is 8 bytes and contains |
|
* ResultCount, ErrorInfoSize, BlockStatus and BlockSize. |
|
*/ |
|
static int adpt_i2o_issue_params(int cmd, adpt_hba* pHba, int tid, |
|
void *opblk_va, dma_addr_t opblk_pa, int oplen, |
|
void *resblk_va, dma_addr_t resblk_pa, int reslen) |
|
{ |
|
u32 msg[9]; |
|
u32 *res = (u32 *)resblk_va; |
|
int wait_status; |
|
|
|
msg[0] = NINE_WORD_MSG_SIZE | SGL_OFFSET_5; |
|
msg[1] = cmd << 24 | HOST_TID << 12 | tid; |
|
msg[2] = 0; |
|
msg[3] = 0; |
|
msg[4] = 0; |
|
msg[5] = 0x54000000 | oplen; /* OperationBlock */ |
|
msg[6] = (u32)opblk_pa; |
|
msg[7] = 0xD0000000 | reslen; /* ResultBlock */ |
|
msg[8] = (u32)resblk_pa; |
|
|
|
if ((wait_status = adpt_i2o_post_wait(pHba, msg, sizeof(msg), 20))) { |
|
printk("adpt_i2o_issue_params: post_wait failed (%p)\n", resblk_va); |
|
return wait_status; /* -DetailedStatus */ |
|
} |
|
|
|
if (res[1]&0x00FF0000) { /* BlockStatus != SUCCESS */ |
|
printk(KERN_WARNING "%s: %s - Error:\n ErrorInfoSize = 0x%02x, " |
|
"BlockStatus = 0x%02x, BlockSize = 0x%04x\n", |
|
pHba->name, |
|
(cmd == I2O_CMD_UTIL_PARAMS_SET) ? "PARAMS_SET" |
|
: "PARAMS_GET", |
|
res[1]>>24, (res[1]>>16)&0xFF, res[1]&0xFFFF); |
|
return -((res[1] >> 16) & 0xFF); /* -BlockStatus */ |
|
} |
|
|
|
return 4 + ((res[1] & 0x0000FFFF) << 2); /* bytes used in resblk */ |
|
} |
|
|
|
|
|
static s32 adpt_i2o_quiesce_hba(adpt_hba* pHba) |
|
{ |
|
u32 msg[4]; |
|
int ret; |
|
|
|
adpt_i2o_status_get(pHba); |
|
|
|
/* SysQuiesce discarded if IOP not in READY or OPERATIONAL state */ |
|
|
|
if((pHba->status_block->iop_state != ADAPTER_STATE_READY) && |
|
(pHba->status_block->iop_state != ADAPTER_STATE_OPERATIONAL)){ |
|
return 0; |
|
} |
|
|
|
msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0; |
|
msg[1] = I2O_CMD_SYS_QUIESCE<<24|HOST_TID<<12|ADAPTER_TID; |
|
msg[2] = 0; |
|
msg[3] = 0; |
|
|
|
if((ret = adpt_i2o_post_wait(pHba, msg, sizeof(msg), 240))) { |
|
printk(KERN_INFO"dpti%d: Unable to quiesce (status=%#x).\n", |
|
pHba->unit, -ret); |
|
} else { |
|
printk(KERN_INFO"dpti%d: Quiesced.\n",pHba->unit); |
|
} |
|
|
|
adpt_i2o_status_get(pHba); |
|
return ret; |
|
} |
|
|
|
|
|
/* |
|
* Enable IOP. Allows the IOP to resume external operations. |
|
*/ |
|
static int adpt_i2o_enable_hba(adpt_hba* pHba) |
|
{ |
|
u32 msg[4]; |
|
int ret; |
|
|
|
adpt_i2o_status_get(pHba); |
|
if(!pHba->status_block){ |
|
return -ENOMEM; |
|
} |
|
/* Enable only allowed on READY state */ |
|
if(pHba->status_block->iop_state == ADAPTER_STATE_OPERATIONAL) |
|
return 0; |
|
|
|
if(pHba->status_block->iop_state != ADAPTER_STATE_READY) |
|
return -EINVAL; |
|
|
|
msg[0]=FOUR_WORD_MSG_SIZE|SGL_OFFSET_0; |
|
msg[1]=I2O_CMD_SYS_ENABLE<<24|HOST_TID<<12|ADAPTER_TID; |
|
msg[2]= 0; |
|
msg[3]= 0; |
|
|
|
if ((ret = adpt_i2o_post_wait(pHba, msg, sizeof(msg), 240))) { |
|
printk(KERN_WARNING"%s: Could not enable (status=%#10x).\n", |
|
pHba->name, ret); |
|
} else { |
|
PDEBUG("%s: Enabled.\n", pHba->name); |
|
} |
|
|
|
adpt_i2o_status_get(pHba); |
|
return ret; |
|
} |
|
|
|
|
|
static int adpt_i2o_systab_send(adpt_hba* pHba) |
|
{ |
|
u32 msg[12]; |
|
int ret; |
|
|
|
msg[0] = I2O_MESSAGE_SIZE(12) | SGL_OFFSET_6; |
|
msg[1] = I2O_CMD_SYS_TAB_SET<<24 | HOST_TID<<12 | ADAPTER_TID; |
|
msg[2] = 0; |
|
msg[3] = 0; |
|
msg[4] = (0<<16) | ((pHba->unit+2) << 12); /* Host 0 IOP ID (unit + 2) */ |
|
msg[5] = 0; /* Segment 0 */ |
|
|
|
/* |
|
* Provide three SGL-elements: |
|
* System table (SysTab), Private memory space declaration and |
|
* Private i/o space declaration |
|
*/ |
|
msg[6] = 0x54000000 | sys_tbl_len; |
|
msg[7] = (u32)sys_tbl_pa; |
|
msg[8] = 0x54000000 | 0; |
|
msg[9] = 0; |
|
msg[10] = 0xD4000000 | 0; |
|
msg[11] = 0; |
|
|
|
if ((ret=adpt_i2o_post_wait(pHba, msg, sizeof(msg), 120))) { |
|
printk(KERN_INFO "%s: Unable to set SysTab (status=%#10x).\n", |
|
pHba->name, ret); |
|
} |
|
#ifdef DEBUG |
|
else { |
|
PINFO("%s: SysTab set.\n", pHba->name); |
|
} |
|
#endif |
|
|
|
return ret; |
|
} |
|
|
|
|
|
/*============================================================================ |
|
* |
|
*============================================================================ |
|
*/ |
|
|
|
|
|
#ifdef UARTDELAY |
|
|
|
static static void adpt_delay(int millisec) |
|
{ |
|
int i; |
|
for (i = 0; i < millisec; i++) { |
|
udelay(1000); /* delay for one millisecond */ |
|
} |
|
} |
|
|
|
#endif |
|
|
|
static struct scsi_host_template driver_template = { |
|
.module = THIS_MODULE, |
|
.name = "dpt_i2o", |
|
.proc_name = "dpt_i2o", |
|
.show_info = adpt_show_info, |
|
.info = adpt_info, |
|
.queuecommand = adpt_queue, |
|
.eh_abort_handler = adpt_abort, |
|
.eh_device_reset_handler = adpt_device_reset, |
|
.eh_bus_reset_handler = adpt_bus_reset, |
|
.eh_host_reset_handler = adpt_reset, |
|
.bios_param = adpt_bios_param, |
|
.slave_configure = adpt_slave_configure, |
|
.can_queue = MAX_TO_IOP_MESSAGES, |
|
.this_id = 7, |
|
}; |
|
|
|
static int __init adpt_init(void) |
|
{ |
|
int error; |
|
adpt_hba *pHba, *next; |
|
|
|
printk("Loading Adaptec I2O RAID: Version " DPT_I2O_VERSION "\n"); |
|
|
|
error = adpt_detect(&driver_template); |
|
if (error < 0) |
|
return error; |
|
if (hba_chain == NULL) |
|
return -ENODEV; |
|
|
|
for (pHba = hba_chain; pHba; pHba = pHba->next) { |
|
error = scsi_add_host(pHba->host, &pHba->pDev->dev); |
|
if (error) |
|
goto fail; |
|
scsi_scan_host(pHba->host); |
|
} |
|
return 0; |
|
fail: |
|
for (pHba = hba_chain; pHba; pHba = next) { |
|
next = pHba->next; |
|
scsi_remove_host(pHba->host); |
|
} |
|
return error; |
|
} |
|
|
|
static void __exit adpt_exit(void) |
|
{ |
|
adpt_hba *pHba, *next; |
|
|
|
for (pHba = hba_chain; pHba; pHba = next) { |
|
next = pHba->next; |
|
adpt_release(pHba); |
|
} |
|
} |
|
|
|
module_init(adpt_init); |
|
module_exit(adpt_exit); |
|
|
|
MODULE_LICENSE("GPL");
|
|
|