#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/blkdev.h>
#include <linux/uaccess.h>
#include <asm/io.h>
#include <linux/completion.h>
#include <linux/delay.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/reboot.h>
#include <linux/module.h>
#include <linux/list.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/dma-mapping.h>
#include <linux/mutex.h>
#include <linux/slab.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_eh.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsicam.h>
#include "megaraid.h"
#define MEGARAID_MODULE_VERSION "2.00.4"
MODULE_AUTHOR ("sju@lsil.com");
MODULE_DESCRIPTION ("LSI Logic MegaRAID legacy driver");
MODULE_LICENSE ("GPL");
MODULE_VERSION(MEGARAID_MODULE_VERSION);
static DEFINE_MUTEX(megadev_mutex);
static unsigned int max_cmd_per_lun = DEF_CMD_PER_LUN;
module_param(max_cmd_per_lun, uint, 0);
MODULE_PARM_DESC(max_cmd_per_lun, "Maximum number of commands which can be issued to a single LUN (default=DEF_CMD_PER_LUN=63)");
static unsigned short int max_sectors_per_io = MAX_SECTORS_PER_IO;
module_param(max_sectors_per_io, ushort, 0);
MODULE_PARM_DESC(max_sectors_per_io, "Maximum number of sectors per I/O request (default=MAX_SECTORS_PER_IO=128)");
static unsigned short int max_mbox_busy_wait = MBOX_BUSY_WAIT;
module_param(max_mbox_busy_wait, ushort, 0);
MODULE_PARM_DESC(max_mbox_busy_wait, "Maximum wait for mailbox in microseconds if busy (default=MBOX_BUSY_WAIT=10)");
#define RDINDOOR(adapter) readl((adapter)->mmio_base + 0x20)
#define RDOUTDOOR(adapter) readl((adapter)->mmio_base + 0x2C)
#define WRINDOOR(adapter,value) writel(value, (adapter)->mmio_base + 0x20)
#define WROUTDOOR(adapter,value) writel(value, (adapter)->mmio_base + 0x2C)
static int hba_count;
static adapter_t *hba_soft_state[MAX_CONTROLLERS];
static struct proc_dir_entry *mega_proc_dir_entry;
static struct mega_hbas mega_hbas[MAX_CONTROLLERS];
static long
megadev_unlocked_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
static const struct file_operations megadev_fops = {
.owner = THIS_MODULE,
.unlocked_ioctl = megadev_unlocked_ioctl,
.open = megadev_open,
.llseek = noop_llseek,
};
static struct mcontroller mcontroller[MAX_CONTROLLERS];
static u32 driver_ver = 0x02000000;
static int major;
#define IS_RAID_CH(hba, ch) (((hba)->mega_ch_class >> (ch)) & 0x01)
static int trace_level;
static int
mega_setup_mailbox(adapter_t *adapter)
{
unsigned long align;
adapter->una_mbox64 = dma_alloc_coherent(&adapter->dev->dev,
sizeof(mbox64_t),
&adapter->una_mbox64_dma,
GFP_KERNEL);
if( !adapter->una_mbox64 ) return -1;
adapter->mbox = &adapter->una_mbox64->mbox;
adapter->mbox = (mbox_t *)((((unsigned long) adapter->mbox) + 15) &
(~0UL ^ 0xFUL));
adapter->mbox64 = (mbox64_t *)(((unsigned long)adapter->mbox) - 8);
align = ((void *)adapter->mbox) - ((void *)&adapter->una_mbox64->mbox);
adapter->mbox_dma = adapter->una_mbox64_dma + 8 + align;
if( adapter->flag & BOARD_IOMAP ) {
outb(adapter->mbox_dma & 0xFF,
adapter->host->io_port + MBOX_PORT0);
outb((adapter->mbox_dma >> 8) & 0xFF,
adapter->host->io_port + MBOX_PORT1);
outb((adapter->mbox_dma >> 16) & 0xFF,
adapter->host->io_port + MBOX_PORT2);
outb((adapter->mbox_dma >> 24) & 0xFF,
adapter->host->io_port + MBOX_PORT3);
outb(ENABLE_MBOX_BYTE,
adapter->host->io_port + ENABLE_MBOX_REGION);
irq_ack(adapter);
irq_enable(adapter);
}
return 0;
}
static int
mega_query_adapter(adapter_t *adapter)
{
dma_addr_t prod_info_dma_handle;
mega_inquiry3 *inquiry3;
struct mbox_out mbox;
u8 *raw_mbox = (u8 *)&mbox;
int retval;
memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE);
memset(&mbox, 0, sizeof(mbox));
mbox.xferaddr = (u32)adapter->buf_dma_handle;
inquiry3 = (mega_inquiry3 *)adapter->mega_buffer;
raw_mbox[0] = FC_NEW_CONFIG;
raw_mbox[2] = NC_SUBOP_ENQUIRY3;
raw_mbox[3] = ENQ3_GET_SOLICITED_FULL;
if (issue_scb_block(adapter, raw_mbox)) {
mraid_ext_inquiry *ext_inq;
mraid_inquiry *inq;
dma_addr_t dma_handle;
ext_inq = dma_alloc_coherent(&adapter->dev->dev,
sizeof(mraid_ext_inquiry),
&dma_handle, GFP_KERNEL);
if( ext_inq == NULL ) return -1;
inq = &ext_inq->raid_inq;
mbox.xferaddr = (u32)dma_handle;
mbox.cmd = MEGA_MBOXCMD_ADPEXTINQ;
issue_scb_block(adapter, raw_mbox);
mega_8_to_40ld(inq, inquiry3,
(mega_product_info *)&adapter->product_info);
dma_free_coherent(&adapter->dev->dev,
sizeof(mraid_ext_inquiry), ext_inq,
dma_handle);
} else {
adapter->flag |= BOARD_40LD;
prod_info_dma_handle = dma_map_single(&adapter->dev->dev,
(void *)&adapter->product_info,
sizeof(mega_product_info),
DMA_FROM_DEVICE);
mbox.xferaddr = prod_info_dma_handle;
raw_mbox[0] = FC_NEW_CONFIG;
raw_mbox[2] = NC_SUBOP_PRODUCT_INFO;
if ((retval = issue_scb_block(adapter, raw_mbox)))
dev_warn(&adapter->dev->dev,
"Product_info cmd failed with error: %d\n",
retval);
dma_unmap_single(&adapter->dev->dev, prod_info_dma_handle,
sizeof(mega_product_info), DMA_FROM_DEVICE);
}
adapter->host->max_channel =
adapter->product_info.nchannels + NVIRT_CHAN -1;
adapter->host->max_id = 16;
adapter->host->max_lun = 7;
adapter->host->cmd_per_lun = max_cmd_per_lun;
adapter->numldrv = inquiry3->num_ldrv;
adapter->max_cmds = adapter->product_info.max_commands;
if(adapter->max_cmds > MAX_COMMANDS)
adapter->max_cmds = MAX_COMMANDS;
adapter->host->can_queue = adapter->max_cmds - 1;
mega_get_max_sgl(adapter);
adapter->host->sg_tablesize = adapter->sglen;
if (adapter->product_info.subsysvid == PCI_VENDOR_ID_HP) {
snprintf(adapter->fw_version, sizeof(adapter->fw_version),
"%c%d%d.%d%d",
adapter->product_info.fw_version[2],
0,
adapter->product_info.fw_version[1] & 0x0f,
0,
adapter->product_info.fw_version[0] & 0x0f);
snprintf(adapter->bios_version, sizeof(adapter->fw_version),
"%c%d%d.%d%d",
adapter->product_info.bios_version[2],
0,
adapter->product_info.bios_version[1] & 0x0f,
0,
adapter->product_info.bios_version[0] & 0x0f);
} else {
memcpy(adapter->fw_version,
(char *)adapter->product_info.fw_version, 4);
adapter->fw_version[4] = 0;
memcpy(adapter->bios_version,
(char *)adapter->product_info.bios_version, 4);
adapter->bios_version[4] = 0;
}
dev_notice(&adapter->dev->dev, "[%s:%s] detected %d logical drives\n",
adapter->fw_version, adapter->bios_version, adapter->numldrv);
adapter->support_ext_cdb = mega_support_ext_cdb(adapter);
if (adapter->support_ext_cdb)
dev_notice(&adapter->dev->dev, "supports extended CDBs\n");
return 0;
}
static inline void
mega_runpendq(adapter_t *adapter)
{
if(!list_empty(&adapter->pending_list))
__mega_runpendq(adapter);
}
static enum scsi_qc_status megaraid_queue_lck(struct scsi_cmnd *scmd)
{
adapter_t *adapter;
scb_t *scb;
enum scsi_qc_status busy = 0;
unsigned long flags;
adapter = (adapter_t *)scmd->device->host->hostdata;
spin_lock_irqsave(&adapter->lock, flags);
scb = mega_build_cmd(adapter, scmd, &busy);
if (!scb)
goto out;
scb->state |= SCB_PENDQ;
list_add_tail(&scb->list, &adapter->pending_list);
if (atomic_read(&adapter->quiescent) == 0)
mega_runpendq(adapter);
busy = 0;
out:
spin_unlock_irqrestore(&adapter->lock, flags);
return busy;
}
static DEF_SCSI_QCMD(megaraid_queue)
static inline scb_t *
mega_allocate_scb(adapter_t *adapter, struct scsi_cmnd *cmd)
{
struct list_head *head = &adapter->free_list;
scb_t *scb;
if( !list_empty(head) ) {
scb = list_entry(head->next, scb_t, list);
list_del_init(head->next);
scb->state = SCB_ACTIVE;
scb->cmd = cmd;
scb->dma_type = MEGA_DMA_TYPE_NONE;
return scb;
}
return NULL;
}
static inline int
mega_get_ldrv_num(adapter_t *adapter, struct scsi_cmnd *cmd, int channel)
{
int tgt;
int ldrv_num;
tgt = cmd->device->id;
if ( tgt > adapter->this_id )
tgt--;
ldrv_num = (channel * 15) + tgt;
if( adapter->boot_ldrv_enabled ) {
if( ldrv_num == 0 ) {
ldrv_num = adapter->boot_ldrv;
}
else {
if( ldrv_num <= adapter->boot_ldrv ) {
ldrv_num--;
}
}
}
if (adapter->support_random_del && adapter->read_ldidmap )
switch (cmd->cmnd[0]) {
case READ_6:
case WRITE_6:
case READ_10:
case WRITE_10:
ldrv_num += 0x80;
}
return ldrv_num;
}
static scb_t *
mega_build_cmd(adapter_t *adapter, struct scsi_cmnd *cmd,
enum scsi_qc_status *busy)
{
mega_passthru *pthru;
scb_t *scb;
mbox_t *mbox;
u32 seg;
char islogical;
int max_ldrv_num;
int channel = 0;
int target = 0;
int ldrv_num = 0;
islogical = adapter->logdrv_chan[cmd->device->channel];
if( adapter->boot_pdrv_enabled ) {
if( islogical ) {
channel = cmd->device->channel -
adapter->product_info.nchannels;
}
else {
channel = cmd->device->channel;
target = cmd->device->id;
if( target == 0 ) {
target = adapter->boot_pdrv_tgt;
}
else if( target == adapter->boot_pdrv_tgt ) {
target = 0;
}
}
}
else {
if( islogical ) {
channel = cmd->device->channel;
}
else {
channel = cmd->device->channel - NVIRT_CHAN;
target = cmd->device->id;
}
}
if(islogical) {
if (cmd->device->lun) {
cmd->result = (DID_BAD_TARGET << 16);
scsi_done(cmd);
return NULL;
}
ldrv_num = mega_get_ldrv_num(adapter, cmd, channel);
max_ldrv_num = (adapter->flag & BOARD_40LD) ?
MAX_LOGICAL_DRIVES_40LD : MAX_LOGICAL_DRIVES_8LD;
if(adapter->read_ldidmap)
max_ldrv_num += 0x80;
if(ldrv_num > max_ldrv_num ) {
cmd->result = (DID_BAD_TARGET << 16);
scsi_done(cmd);
return NULL;
}
}
else {
if( cmd->device->lun > 7) {
cmd->result = (DID_BAD_TARGET << 16);
scsi_done(cmd);
return NULL;
}
}
if(islogical) {
switch (cmd->cmnd[0]) {
case TEST_UNIT_READY:
#if MEGA_HAVE_CLUSTERING
if( !adapter->has_cluster ) {
cmd->result = (DID_OK << 16);
scsi_done(cmd);
return NULL;
}
if(!(scb = mega_allocate_scb(adapter, cmd))) {
*busy = SCSI_MLQUEUE_HOST_BUSY;
return NULL;
}
scb->raw_mbox[0] = MEGA_CLUSTER_CMD;
scb->raw_mbox[2] = MEGA_RESERVATION_STATUS;
scb->raw_mbox[3] = ldrv_num;
scb->dma_direction = DMA_NONE;
return scb;
#else
cmd->result = (DID_OK << 16);
scsi_done(cmd);
return NULL;
#endif
case MODE_SENSE: {
char *buf;
struct scatterlist *sg;
sg = scsi_sglist(cmd);
buf = kmap_atomic(sg_page(sg)) + sg->offset;
memset(buf, 0, cmd->cmnd[4]);
kunmap_atomic(buf - sg->offset);
cmd->result = (DID_OK << 16);
scsi_done(cmd);
return NULL;
}
case READ_CAPACITY:
case INQUIRY:
if(!(adapter->flag & (1L << cmd->device->channel))) {
dev_notice(&adapter->dev->dev,
"scsi%d: scanning scsi channel %d "
"for logical drives\n",
adapter->host->host_no,
cmd->device->channel);
adapter->flag |= (1L << cmd->device->channel);
}
if(!(scb = mega_allocate_scb(adapter, cmd))) {
*busy = SCSI_MLQUEUE_HOST_BUSY;
return NULL;
}
pthru = scb->pthru;
mbox = (mbox_t *)scb->raw_mbox;
memset(mbox, 0, sizeof(scb->raw_mbox));
memset(pthru, 0, sizeof(mega_passthru));
pthru->timeout = 0;
pthru->ars = 1;
pthru->reqsenselen = 14;
pthru->islogical = 1;
pthru->logdrv = ldrv_num;
pthru->cdblen = cmd->cmd_len;
memcpy(pthru->cdb, cmd->cmnd, cmd->cmd_len);
if( adapter->has_64bit_addr ) {
mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU64;
}
else {
mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU;
}
scb->dma_direction = DMA_FROM_DEVICE;
pthru->numsgelements = mega_build_sglist(adapter, scb,
&pthru->dataxferaddr, &pthru->dataxferlen);
mbox->m_out.xferaddr = scb->pthru_dma_addr;
return scb;
case READ_6:
case WRITE_6:
case READ_10:
case WRITE_10:
case READ_12:
case WRITE_12:
if(!(scb = mega_allocate_scb(adapter, cmd))) {
*busy = SCSI_MLQUEUE_HOST_BUSY;
return NULL;
}
mbox = (mbox_t *)scb->raw_mbox;
memset(mbox, 0, sizeof(scb->raw_mbox));
mbox->m_out.logdrv = ldrv_num;
if( adapter->has_64bit_addr ) {
mbox->m_out.cmd = (*cmd->cmnd & 0x02) ?
MEGA_MBOXCMD_LWRITE64:
MEGA_MBOXCMD_LREAD64 ;
}
else {
mbox->m_out.cmd = (*cmd->cmnd & 0x02) ?
MEGA_MBOXCMD_LWRITE:
MEGA_MBOXCMD_LREAD ;
}
if( cmd->cmd_len == 6 ) {
mbox->m_out.numsectors = (u32) cmd->cmnd[4];
mbox->m_out.lba =
((u32)cmd->cmnd[1] << 16) |
((u32)cmd->cmnd[2] << 8) |
(u32)cmd->cmnd[3];
mbox->m_out.lba &= 0x1FFFFF;
#if MEGA_HAVE_STATS
if (*cmd->cmnd == READ_6) {
adapter->nreads[ldrv_num%0x80]++;
adapter->nreadblocks[ldrv_num%0x80] +=
mbox->m_out.numsectors;
} else {
adapter->nwrites[ldrv_num%0x80]++;
adapter->nwriteblocks[ldrv_num%0x80] +=
mbox->m_out.numsectors;
}
#endif
}
if( cmd->cmd_len == 10 ) {
mbox->m_out.numsectors =
(u32)cmd->cmnd[8] |
((u32)cmd->cmnd[7] << 8);
mbox->m_out.lba =
((u32)cmd->cmnd[2] << 24) |
((u32)cmd->cmnd[3] << 16) |
((u32)cmd->cmnd[4] << 8) |
(u32)cmd->cmnd[5];
#if MEGA_HAVE_STATS
if (*cmd->cmnd == READ_10) {
adapter->nreads[ldrv_num%0x80]++;
adapter->nreadblocks[ldrv_num%0x80] +=
mbox->m_out.numsectors;
} else {
adapter->nwrites[ldrv_num%0x80]++;
adapter->nwriteblocks[ldrv_num%0x80] +=
mbox->m_out.numsectors;
}
#endif
}
if( cmd->cmd_len == 12 ) {
mbox->m_out.lba =
((u32)cmd->cmnd[2] << 24) |
((u32)cmd->cmnd[3] << 16) |
((u32)cmd->cmnd[4] << 8) |
(u32)cmd->cmnd[5];
mbox->m_out.numsectors =
((u32)cmd->cmnd[6] << 24) |
((u32)cmd->cmnd[7] << 16) |
((u32)cmd->cmnd[8] << 8) |
(u32)cmd->cmnd[9];
#if MEGA_HAVE_STATS
if (*cmd->cmnd == READ_12) {
adapter->nreads[ldrv_num%0x80]++;
adapter->nreadblocks[ldrv_num%0x80] +=
mbox->m_out.numsectors;
} else {
adapter->nwrites[ldrv_num%0x80]++;
adapter->nwriteblocks[ldrv_num%0x80] +=
mbox->m_out.numsectors;
}
#endif
}
if( (*cmd->cmnd & 0x0F) == 0x08 ) {
scb->dma_direction = DMA_FROM_DEVICE;
}
else {
scb->dma_direction = DMA_TO_DEVICE;
}
mbox->m_out.numsgelements = mega_build_sglist(adapter, scb,
(u32 *)&mbox->m_out.xferaddr, &seg);
return scb;
#if MEGA_HAVE_CLUSTERING
case RESERVE_6:
case RELEASE_6:
if( ! adapter->has_cluster ) {
cmd->result = (DID_BAD_TARGET << 16);
scsi_done(cmd);
return NULL;
}
if(!(scb = mega_allocate_scb(adapter, cmd))) {
*busy = SCSI_MLQUEUE_HOST_BUSY;
return NULL;
}
scb->raw_mbox[0] = MEGA_CLUSTER_CMD;
scb->raw_mbox[2] = *cmd->cmnd == RESERVE_6 ?
MEGA_RESERVE_LD : MEGA_RELEASE_LD;
scb->raw_mbox[3] = ldrv_num;
scb->dma_direction = DMA_NONE;
return scb;
#endif
default:
cmd->result = (DID_BAD_TARGET << 16);
scsi_done(cmd);
return NULL;
}
}
else {
if(!(scb = mega_allocate_scb(adapter, cmd))) {
*busy = SCSI_MLQUEUE_HOST_BUSY;
return NULL;
}
mbox = (mbox_t *)scb->raw_mbox;
memset(mbox, 0, sizeof(scb->raw_mbox));
if( adapter->support_ext_cdb ) {
mega_prepare_extpassthru(adapter, scb, cmd,
channel, target);
mbox->m_out.cmd = MEGA_MBOXCMD_EXTPTHRU;
mbox->m_out.xferaddr = scb->epthru_dma_addr;
}
else {
pthru = mega_prepare_passthru(adapter, scb, cmd,
channel, target);
if( adapter->has_64bit_addr ) {
mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU64;
}
else {
mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU;
}
mbox->m_out.xferaddr = scb->pthru_dma_addr;
}
return scb;
}
return NULL;
}
static mega_passthru *
mega_prepare_passthru(adapter_t *adapter, scb_t *scb, struct scsi_cmnd *cmd,
int channel, int target)
{
mega_passthru *pthru;
pthru = scb->pthru;
memset(pthru, 0, sizeof (mega_passthru));
pthru->timeout = 2;
pthru->ars = 1;
pthru->reqsenselen = 14;
pthru->islogical = 0;
pthru->channel = (adapter->flag & BOARD_40LD) ? 0 : channel;
pthru->target = (adapter->flag & BOARD_40LD) ?
(channel << 4) | target : target;
pthru->cdblen = cmd->cmd_len;
pthru->logdrv = cmd->device->lun;
memcpy(pthru->cdb, cmd->cmnd, cmd->cmd_len);
scb->dma_direction = DMA_BIDIRECTIONAL;
switch (cmd->cmnd[0]) {
case INQUIRY:
case READ_CAPACITY:
if(!(adapter->flag & (1L << cmd->device->channel))) {
dev_notice(&adapter->dev->dev,
"scsi%d: scanning scsi channel %d [P%d] "
"for physical devices\n",
adapter->host->host_no,
cmd->device->channel, channel);
adapter->flag |= (1L << cmd->device->channel);
}
fallthrough;
default:
pthru->numsgelements = mega_build_sglist(adapter, scb,
&pthru->dataxferaddr, &pthru->dataxferlen);
break;
}
return pthru;
}
static mega_ext_passthru *
mega_prepare_extpassthru(adapter_t *adapter, scb_t *scb,
struct scsi_cmnd *cmd,
int channel, int target)
{
mega_ext_passthru *epthru;
epthru = scb->epthru;
memset(epthru, 0, sizeof(mega_ext_passthru));
epthru->timeout = 2;
epthru->ars = 1;
epthru->reqsenselen = 14;
epthru->islogical = 0;
epthru->channel = (adapter->flag & BOARD_40LD) ? 0 : channel;
epthru->target = (adapter->flag & BOARD_40LD) ?
(channel << 4) | target : target;
epthru->cdblen = cmd->cmd_len;
epthru->logdrv = cmd->device->lun;
memcpy(epthru->cdb, cmd->cmnd, cmd->cmd_len);
scb->dma_direction = DMA_BIDIRECTIONAL;
switch(cmd->cmnd[0]) {
case INQUIRY:
case READ_CAPACITY:
if(!(adapter->flag & (1L << cmd->device->channel))) {
dev_notice(&adapter->dev->dev,
"scsi%d: scanning scsi channel %d [P%d] "
"for physical devices\n",
adapter->host->host_no,
cmd->device->channel, channel);
adapter->flag |= (1L << cmd->device->channel);
}
fallthrough;
default:
epthru->numsgelements = mega_build_sglist(adapter, scb,
&epthru->dataxferaddr, &epthru->dataxferlen);
break;
}
return epthru;
}
static void
__mega_runpendq(adapter_t *adapter)
{
scb_t *scb;
struct list_head *pos, *next;
list_for_each_safe(pos, next, &adapter->pending_list) {
scb = list_entry(pos, scb_t, list);
if( !(scb->state & SCB_ISSUED) ) {
if( issue_scb(adapter, scb) != 0 )
return;
}
}
return;
}
static int
issue_scb(adapter_t *adapter, scb_t *scb)
{
volatile mbox64_t *mbox64 = adapter->mbox64;
volatile mbox_t *mbox = adapter->mbox;
unsigned int i = 0;
if(unlikely(mbox->m_in.busy)) {
do {
udelay(1);
i++;
} while( mbox->m_in.busy && (i < max_mbox_busy_wait) );
if(mbox->m_in.busy) return -1;
}
memcpy((char *)&mbox->m_out, (char *)scb->raw_mbox,
sizeof(struct mbox_out));
mbox->m_out.cmdid = scb->idx;
mbox->m_in.busy = 1;
atomic_inc(&adapter->pend_cmds);
switch (mbox->m_out.cmd) {
case MEGA_MBOXCMD_LREAD64:
case MEGA_MBOXCMD_LWRITE64:
case MEGA_MBOXCMD_PASSTHRU64:
case MEGA_MBOXCMD_EXTPTHRU:
mbox64->xfer_segment_lo = mbox->m_out.xferaddr;
mbox64->xfer_segment_hi = 0;
mbox->m_out.xferaddr = 0xFFFFFFFF;
break;
default:
mbox64->xfer_segment_lo = 0;
mbox64->xfer_segment_hi = 0;
}
scb->state |= SCB_ISSUED;
if( likely(adapter->flag & BOARD_MEMMAP) ) {
mbox->m_in.poll = 0;
mbox->m_in.ack = 0;
WRINDOOR(adapter, adapter->mbox_dma | 0x1);
}
else {
irq_enable(adapter);
issue_command(adapter);
}
return 0;
}
static inline int
mega_busywait_mbox (adapter_t *adapter)
{
if (adapter->mbox->m_in.busy)
return __mega_busywait_mbox(adapter);
return 0;
}
static int
issue_scb_block(adapter_t *adapter, u_char *raw_mbox)
{
volatile mbox64_t *mbox64 = adapter->mbox64;
volatile mbox_t *mbox = adapter->mbox;
u8 byte;
if(mega_busywait_mbox (adapter))
goto bug_blocked_mailbox;
memcpy((char *) mbox, raw_mbox, sizeof(struct mbox_out));
mbox->m_out.cmdid = 0xFE;
mbox->m_in.busy = 1;
switch (raw_mbox[0]) {
case MEGA_MBOXCMD_LREAD64:
case MEGA_MBOXCMD_LWRITE64:
case MEGA_MBOXCMD_PASSTHRU64:
case MEGA_MBOXCMD_EXTPTHRU:
mbox64->xfer_segment_lo = mbox->m_out.xferaddr;
mbox64->xfer_segment_hi = 0;
mbox->m_out.xferaddr = 0xFFFFFFFF;
break;
default:
mbox64->xfer_segment_lo = 0;
mbox64->xfer_segment_hi = 0;
}
if( likely(adapter->flag & BOARD_MEMMAP) ) {
mbox->m_in.poll = 0;
mbox->m_in.ack = 0;
mbox->m_in.numstatus = 0xFF;
mbox->m_in.status = 0xFF;
WRINDOOR(adapter, adapter->mbox_dma | 0x1);
while((volatile u8)mbox->m_in.numstatus == 0xFF)
cpu_relax();
mbox->m_in.numstatus = 0xFF;
while( (volatile u8)mbox->m_in.poll != 0x77 )
cpu_relax();
mbox->m_in.poll = 0;
mbox->m_in.ack = 0x77;
WRINDOOR(adapter, adapter->mbox_dma | 0x2);
while(RDINDOOR(adapter) & 0x2)
cpu_relax();
}
else {
irq_disable(adapter);
issue_command(adapter);
while (!((byte = irq_state(adapter)) & INTR_VALID))
cpu_relax();
set_irq_state(adapter, byte);
irq_enable(adapter);
irq_ack(adapter);
}
return mbox->m_in.status;
bug_blocked_mailbox:
dev_warn(&adapter->dev->dev, "Blocked mailbox......!!\n");
udelay (1000);
return -1;
}
static irqreturn_t
megaraid_isr_iomapped(int irq, void *devp)
{
adapter_t *adapter = devp;
unsigned long flags;
u8 status;
u8 nstatus;
u8 completed[MAX_FIRMWARE_STATUS];
u8 byte;
int handled = 0;
spin_lock_irqsave(&adapter->lock, flags);
do {
byte = irq_state(adapter);
if( (byte & VALID_INTR_BYTE) == 0 ) {
goto out_unlock;
}
set_irq_state(adapter, byte);
while((nstatus = (volatile u8)adapter->mbox->m_in.numstatus)
== 0xFF)
cpu_relax();
adapter->mbox->m_in.numstatus = 0xFF;
status = adapter->mbox->m_in.status;
atomic_sub(nstatus, &adapter->pend_cmds);
memcpy(completed, (void *)adapter->mbox->m_in.completed,
nstatus);
irq_ack(adapter);
mega_cmd_done(adapter, completed, nstatus, status);
mega_rundoneq(adapter);
handled = 1;
if(atomic_read(&adapter->quiescent) == 0) {
mega_runpendq(adapter);
}
} while(1);
out_unlock:
spin_unlock_irqrestore(&adapter->lock, flags);
return IRQ_RETVAL(handled);
}
static irqreturn_t
megaraid_isr_memmapped(int irq, void *devp)
{
adapter_t *adapter = devp;
unsigned long flags;
u8 status;
u32 dword = 0;
u8 nstatus;
u8 completed[MAX_FIRMWARE_STATUS];
int handled = 0;
spin_lock_irqsave(&adapter->lock, flags);
do {
dword = RDOUTDOOR(adapter);
if(dword != 0x10001234) {
goto out_unlock;
}
WROUTDOOR(adapter, 0x10001234);
while((nstatus = (volatile u8)adapter->mbox->m_in.numstatus)
== 0xFF) {
cpu_relax();
}
adapter->mbox->m_in.numstatus = 0xFF;
status = adapter->mbox->m_in.status;
atomic_sub(nstatus, &adapter->pend_cmds);
memcpy(completed, (void *)adapter->mbox->m_in.completed,
nstatus);
WRINDOOR(adapter, 0x2);
handled = 1;
while( RDINDOOR(adapter) & 0x02 )
cpu_relax();
mega_cmd_done(adapter, completed, nstatus, status);
mega_rundoneq(adapter);
if(atomic_read(&adapter->quiescent) == 0) {
mega_runpendq(adapter);
}
} while(1);
out_unlock:
spin_unlock_irqrestore(&adapter->lock, flags);
return IRQ_RETVAL(handled);
}
static void
mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status)
{
mega_ext_passthru *epthru = NULL;
struct scatterlist *sgl;
struct scsi_cmnd *cmd = NULL;
mega_passthru *pthru = NULL;
mbox_t *mbox = NULL;
u8 c;
scb_t *scb;
int islogical;
int cmdid;
int i;
for( i = 0; i < nstatus; i++ ) {
cmdid = completed[i];
if (cmdid == CMDID_INT_CMDS) {
scb = &adapter->int_scb;
cmd = scb->cmd;
list_del_init(&scb->list);
scb->state = SCB_FREE;
adapter->int_status = status;
complete(&adapter->int_waitq);
} else {
scb = &adapter->scb_list[cmdid];
if( !(scb->state & SCB_ISSUED) || scb->cmd == NULL ) {
dev_crit(&adapter->dev->dev, "invalid command "
"Id %d, scb->state:%x, scsi cmd:%p\n",
cmdid, scb->state, scb->cmd);
continue;
}
if( scb->state & SCB_ABORT ) {
dev_warn(&adapter->dev->dev,
"aborted cmd [%x] complete\n",
scb->idx);
scb->cmd->result = (DID_ABORT << 16);
list_add_tail(SCSI_LIST(scb->cmd),
&adapter->completed_list);
mega_free_scb(adapter, scb);
continue;
}
if( scb->state & SCB_RESET ) {
dev_warn(&adapter->dev->dev,
"reset cmd [%x] complete\n",
scb->idx);
scb->cmd->result = (DID_RESET << 16);
list_add_tail(SCSI_LIST(scb->cmd),
&adapter->completed_list);
mega_free_scb (adapter, scb);
continue;
}
cmd = scb->cmd;
pthru = scb->pthru;
epthru = scb->epthru;
mbox = (mbox_t *)scb->raw_mbox;
#if MEGA_HAVE_STATS
{
int logdrv = mbox->m_out.logdrv;
islogical = adapter->logdrv_chan[cmd->channel];
if( status && islogical && (cmd->cmnd[0] == READ_6 ||
cmd->cmnd[0] == READ_10 ||
cmd->cmnd[0] == READ_12)) {
adapter->rd_errors[logdrv%0x80]++;
}
if( status && islogical && (cmd->cmnd[0] == WRITE_6 ||
cmd->cmnd[0] == WRITE_10 ||
cmd->cmnd[0] == WRITE_12)) {
adapter->wr_errors[logdrv%0x80]++;
}
}
#endif
}
islogical = adapter->logdrv_chan[cmd->device->channel];
if( cmd->cmnd[0] == INQUIRY && !islogical ) {
sgl = scsi_sglist(cmd);
if( sg_page(sgl) ) {
c = *(unsigned char *) sg_virt(&sgl[0]);
} else {
dev_warn(&adapter->dev->dev, "invalid sg\n");
c = 0;
}
if(IS_RAID_CH(adapter, cmd->device->channel) &&
((c & 0x1F ) == TYPE_DISK)) {
status = 0xF0;
}
}
cmd->result = 0;
switch (status) {
case 0x00:
cmd->result |= (DID_OK << 16);
break;
case 0x02:
if( mbox->m_out.cmd == MEGA_MBOXCMD_PASSTHRU ||
mbox->m_out.cmd == MEGA_MBOXCMD_PASSTHRU64 ) {
memcpy(cmd->sense_buffer, pthru->reqsensearea,
14);
cmd->result = SAM_STAT_CHECK_CONDITION;
}
else {
if (mbox->m_out.cmd == MEGA_MBOXCMD_EXTPTHRU) {
memcpy(cmd->sense_buffer,
epthru->reqsensearea, 14);
cmd->result = SAM_STAT_CHECK_CONDITION;
} else
scsi_build_sense(cmd, 0,
ABORTED_COMMAND, 0, 0);
}
break;
case 0x08:
cmd->result |= (DID_BUS_BUSY << 16) | status;
break;
default:
#if MEGA_HAVE_CLUSTERING
if( cmd->cmnd[0] == TEST_UNIT_READY ) {
cmd->result |= (DID_ERROR << 16) |
SAM_STAT_RESERVATION_CONFLICT;
}
else
if( status == 1 &&
(cmd->cmnd[0] == RESERVE_6 ||
cmd->cmnd[0] == RELEASE_6) ) {
cmd->result |= (DID_ERROR << 16) |
SAM_STAT_RESERVATION_CONFLICT;
}
else
#endif
cmd->result |= (DID_BAD_TARGET << 16)|status;
}
mega_free_scb(adapter, scb);
list_add_tail(SCSI_LIST(cmd), &adapter->completed_list);
}
}
static void
mega_rundoneq (adapter_t *adapter)
{
struct megaraid_cmd_priv *cmd_priv;
list_for_each_entry(cmd_priv, &adapter->completed_list, entry)
scsi_done(megaraid_to_scsi_cmd(cmd_priv));
INIT_LIST_HEAD(&adapter->completed_list);
}
static void
mega_free_scb(adapter_t *adapter, scb_t *scb)
{
switch( scb->dma_type ) {
case MEGA_DMA_TYPE_NONE:
break;
case MEGA_SGLIST:
scsi_dma_unmap(scb->cmd);
break;
default:
break;
}
list_del_init(&scb->list);
scb->state = SCB_FREE;
scb->cmd = NULL;
list_add(&scb->list, &adapter->free_list);
}
static int
__mega_busywait_mbox (adapter_t *adapter)
{
volatile mbox_t *mbox = adapter->mbox;
long counter;
for (counter = 0; counter < 10000; counter++) {
if (!mbox->m_in.busy)
return 0;
udelay(100);
cond_resched();
}
return -1;
}
static int
mega_build_sglist(adapter_t *adapter, scb_t *scb, u32 *buf, u32 *len)
{
struct scatterlist *sg;
struct scsi_cmnd *cmd;
int sgcnt;
int idx;
cmd = scb->cmd;
sgcnt = scsi_dma_map(cmd);
scb->dma_type = MEGA_SGLIST;
BUG_ON(sgcnt > adapter->sglen || sgcnt < 0);
*len = 0;
if (scsi_sg_count(cmd) == 1 && !adapter->has_64bit_addr) {
sg = scsi_sglist(cmd);
scb->dma_h_bulkdata = sg_dma_address(sg);
*buf = (u32)scb->dma_h_bulkdata;
*len = sg_dma_len(sg);
return 0;
}
scsi_for_each_sg(cmd, sg, sgcnt, idx) {
if (adapter->has_64bit_addr) {
scb->sgl64[idx].address = sg_dma_address(sg);
*len += scb->sgl64[idx].length = sg_dma_len(sg);
} else {
scb->sgl[idx].address = sg_dma_address(sg);
*len += scb->sgl[idx].length = sg_dma_len(sg);
}
}
*buf = scb->sgl_dma_addr;
return sgcnt;
}
static void
mega_8_to_40ld(mraid_inquiry *inquiry, mega_inquiry3 *enquiry3,
mega_product_info *product_info)
{
int i;
product_info->max_commands = inquiry->adapter_info.max_commands;
enquiry3->rebuild_rate = inquiry->adapter_info.rebuild_rate;
product_info->nchannels = inquiry->adapter_info.nchannels;
for (i = 0; i < 4; i++) {
product_info->fw_version[i] =
inquiry->adapter_info.fw_version[i];
product_info->bios_version[i] =
inquiry->adapter_info.bios_version[i];
}
enquiry3->cache_flush_interval =
inquiry->adapter_info.cache_flush_interval;
product_info->dram_size = inquiry->adapter_info.dram_size;
enquiry3->num_ldrv = inquiry->logdrv_info.num_ldrv;
for (i = 0; i < MAX_LOGICAL_DRIVES_8LD; i++) {
enquiry3->ldrv_size[i] = inquiry->logdrv_info.ldrv_size[i];
enquiry3->ldrv_prop[i] = inquiry->logdrv_info.ldrv_prop[i];
enquiry3->ldrv_state[i] = inquiry->logdrv_info.ldrv_state[i];
}
for (i = 0; i < (MAX_PHYSICAL_DRIVES); i++)
enquiry3->pdrv_state[i] = inquiry->pdrv_info.pdrv_state[i];
}
static inline void
mega_free_sgl(adapter_t *adapter)
{
scb_t *scb;
int i;
for(i = 0; i < adapter->max_cmds; i++) {
scb = &adapter->scb_list[i];
if( scb->sgl64 ) {
dma_free_coherent(&adapter->dev->dev,
sizeof(mega_sgl64) * adapter->sglen,
scb->sgl64, scb->sgl_dma_addr);
scb->sgl64 = NULL;
}
if( scb->pthru ) {
dma_free_coherent(&adapter->dev->dev,
sizeof(mega_passthru), scb->pthru,
scb->pthru_dma_addr);
scb->pthru = NULL;
}
if( scb->epthru ) {
dma_free_coherent(&adapter->dev->dev,
sizeof(mega_ext_passthru),
scb->epthru, scb->epthru_dma_addr);
scb->epthru = NULL;
}
}
}
const char *
megaraid_info(struct Scsi_Host *host)
{
static char buffer[512];
adapter_t *adapter;
adapter = (adapter_t *)host->hostdata;
sprintf (buffer,
"LSI Logic MegaRAID %s %d commands %d targs %d chans %d luns",
adapter->fw_version, adapter->product_info.max_commands,
adapter->host->max_id, adapter->host->max_channel,
(u32)adapter->host->max_lun);
return buffer;
}
static int
megaraid_abort(struct scsi_cmnd *cmd)
{
adapter_t *adapter;
int rval;
adapter = (adapter_t *)cmd->device->host->hostdata;
rval = megaraid_abort_and_reset(adapter, cmd, SCB_ABORT);
mega_rundoneq(adapter);
return rval;
}
static int
megaraid_reset(struct scsi_cmnd *cmd)
{
adapter_t *adapter;
megacmd_t mc;
int rval;
adapter = (adapter_t *)cmd->device->host->hostdata;
#if MEGA_HAVE_CLUSTERING
mc.cmd = MEGA_CLUSTER_CMD;
mc.opcode = MEGA_RESET_RESERVATIONS;
if( mega_internal_command(adapter, &mc, NULL) != 0 ) {
dev_warn(&adapter->dev->dev, "reservation reset failed\n");
}
else {
dev_info(&adapter->dev->dev, "reservation reset\n");
}
#endif
spin_lock_irq(&adapter->lock);
rval = megaraid_abort_and_reset(adapter, NULL, SCB_RESET);
mega_rundoneq(adapter);
spin_unlock_irq(&adapter->lock);
return rval;
}
static int
megaraid_abort_and_reset(adapter_t *adapter, struct scsi_cmnd *cmd, int aor)
{
struct list_head *pos, *next;
scb_t *scb;
if (aor == SCB_ABORT)
dev_warn(&adapter->dev->dev,
"ABORTING cmd=%x <c=%d t=%d l=%d>\n",
cmd->cmnd[0], cmd->device->channel,
cmd->device->id, (u32)cmd->device->lun);
else
dev_warn(&adapter->dev->dev, "RESETTING\n");
if(list_empty(&adapter->pending_list))
return FAILED;
list_for_each_safe(pos, next, &adapter->pending_list) {
scb = list_entry(pos, scb_t, list);
if (!cmd || scb->cmd == cmd) {
scb->state |= aor;
if( scb->state & SCB_ISSUED ) {
dev_warn(&adapter->dev->dev,
"%s[%x], fw owner\n",
(aor==SCB_ABORT) ? "ABORTING":"RESET",
scb->idx);
return FAILED;
}
dev_warn(&adapter->dev->dev,
"%s-[%x], driver owner\n",
(cmd) ? "ABORTING":"RESET",
scb->idx);
mega_free_scb(adapter, scb);
if (cmd) {
cmd->result = (DID_ABORT << 16);
list_add_tail(SCSI_LIST(cmd),
&adapter->completed_list);
}
return SUCCESS;
}
}
return FAILED;
}
static inline int
make_local_pdev(adapter_t *adapter, struct pci_dev **pdev)
{
*pdev = pci_alloc_dev(NULL);
if( *pdev == NULL ) return -1;
memcpy(*pdev, adapter->dev, sizeof(struct pci_dev));
if (dma_set_mask(&(*pdev)->dev, DMA_BIT_MASK(32)) != 0) {
kfree(*pdev);
return -1;
}
return 0;
}
static inline void
free_local_pdev(struct pci_dev *pdev)
{
kfree(pdev);
}
static inline void *
mega_allocate_inquiry(dma_addr_t *dma_handle, struct pci_dev *pdev)
{
return dma_alloc_coherent(&pdev->dev, sizeof(mega_inquiry3),
dma_handle, GFP_KERNEL);
}
static inline void
mega_free_inquiry(void *inquiry, dma_addr_t dma_handle, struct pci_dev *pdev)
{
dma_free_coherent(&pdev->dev, sizeof(mega_inquiry3), inquiry,
dma_handle);
}
#ifdef CONFIG_PROC_FS
static int
proc_show_config(struct seq_file *m, void *v)
{
adapter_t *adapter = m->private;
seq_puts(m, MEGARAID_VERSION);
if(adapter->product_info.product_name[0])
seq_printf(m, "%s\n", adapter->product_info.product_name);
seq_puts(m, "Controller Type: ");
if( adapter->flag & BOARD_MEMMAP )
seq_puts(m, "438/466/467/471/493/518/520/531/532\n");
else
seq_puts(m, "418/428/434\n");
if(adapter->flag & BOARD_40LD)
seq_puts(m, "Controller Supports 40 Logical Drives\n");
if(adapter->flag & BOARD_64BIT)
seq_puts(m, "Controller capable of 64-bit memory addressing\n");
if( adapter->has_64bit_addr )
seq_puts(m, "Controller using 64-bit memory addressing\n");
else
seq_puts(m, "Controller is not using 64-bit memory addressing\n");
seq_printf(m, "Base = %08lx, Irq = %d, ",
adapter->base, adapter->host->irq);
seq_printf(m, "Logical Drives = %d, Channels = %d\n",
adapter->numldrv, adapter->product_info.nchannels);
seq_printf(m, "Version =%s:%s, DRAM = %dMb\n",
adapter->fw_version, adapter->bios_version,
adapter->product_info.dram_size);
seq_printf(m, "Controller Queue Depth = %d, Driver Queue Depth = %d\n",
adapter->product_info.max_commands, adapter->max_cmds);
seq_printf(m, "support_ext_cdb = %d\n", adapter->support_ext_cdb);
seq_printf(m, "support_random_del = %d\n", adapter->support_random_del);
seq_printf(m, "boot_ldrv_enabled = %d\n", adapter->boot_ldrv_enabled);
seq_printf(m, "boot_ldrv = %d\n", adapter->boot_ldrv);
seq_printf(m, "boot_pdrv_enabled = %d\n", adapter->boot_pdrv_enabled);
seq_printf(m, "boot_pdrv_ch = %d\n", adapter->boot_pdrv_ch);
seq_printf(m, "boot_pdrv_tgt = %d\n", adapter->boot_pdrv_tgt);
seq_printf(m, "quiescent = %d\n",
atomic_read(&adapter->quiescent));
seq_printf(m, "has_cluster = %d\n", adapter->has_cluster);
seq_puts(m, "\nModule Parameters:\n");
seq_printf(m, "max_cmd_per_lun = %d\n", max_cmd_per_lun);
seq_printf(m, "max_sectors_per_io = %d\n", max_sectors_per_io);
return 0;
}
static int
proc_show_stat(struct seq_file *m, void *v)
{
adapter_t *adapter = m->private;
#if MEGA_HAVE_STATS
int i;
#endif
seq_puts(m, "Statistical Information for this controller\n");
seq_printf(m, "pend_cmds = %d\n", atomic_read(&adapter->pend_cmds));
#if MEGA_HAVE_STATS
for(i = 0; i < adapter->numldrv; i++) {
seq_printf(m, "Logical Drive %d:\n", i);
seq_printf(m, "\tReads Issued = %lu, Writes Issued = %lu\n",
adapter->nreads[i], adapter->nwrites[i]);
seq_printf(m, "\tSectors Read = %lu, Sectors Written = %lu\n",
adapter->nreadblocks[i], adapter->nwriteblocks[i]);
seq_printf(m, "\tRead errors = %lu, Write errors = %lu\n\n",
adapter->rd_errors[i], adapter->wr_errors[i]);
}
#else
seq_puts(m, "IO and error counters not compiled in driver.\n");
#endif
return 0;
}
static int
proc_show_mbox(struct seq_file *m, void *v)
{
adapter_t *adapter = m->private;
volatile mbox_t *mbox = adapter->mbox;
seq_puts(m, "Contents of Mail Box Structure\n");
seq_printf(m, " Fw Command = 0x%02x\n", mbox->m_out.cmd);
seq_printf(m, " Cmd Sequence = 0x%02x\n", mbox->m_out.cmdid);
seq_printf(m, " No of Sectors= %04d\n", mbox->m_out.numsectors);
seq_printf(m, " LBA = 0x%02x\n", mbox->m_out.lba);
seq_printf(m, " DTA = 0x%08x\n", mbox->m_out.xferaddr);
seq_printf(m, " Logical Drive= 0x%02x\n", mbox->m_out.logdrv);
seq_printf(m, " No of SG Elmt= 0x%02x\n", mbox->m_out.numsgelements);
seq_printf(m, " Busy = %01x\n", mbox->m_in.busy);
seq_printf(m, " Status = 0x%02x\n", mbox->m_in.status);
return 0;
}
static int
proc_show_rebuild_rate(struct seq_file *m, void *v)
{
adapter_t *adapter = m->private;
dma_addr_t dma_handle;
caddr_t inquiry;
struct pci_dev *pdev;
if( make_local_pdev(adapter, &pdev) != 0 )
return 0;
if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL )
goto free_pdev;
if( mega_adapinq(adapter, dma_handle) != 0 ) {
seq_puts(m, "Adapter inquiry failed.\n");
dev_warn(&adapter->dev->dev, "inquiry failed\n");
goto free_inquiry;
}
if( adapter->flag & BOARD_40LD )
seq_printf(m, "Rebuild Rate: [%d%%]\n",
((mega_inquiry3 *)inquiry)->rebuild_rate);
else
seq_printf(m, "Rebuild Rate: [%d%%]\n",
((mraid_ext_inquiry *)
inquiry)->raid_inq.adapter_info.rebuild_rate);
free_inquiry:
mega_free_inquiry(inquiry, dma_handle, pdev);
free_pdev:
free_local_pdev(pdev);
return 0;
}
static int
proc_show_battery(struct seq_file *m, void *v)
{
adapter_t *adapter = m->private;
dma_addr_t dma_handle;
caddr_t inquiry;
struct pci_dev *pdev;
u8 battery_status;
if( make_local_pdev(adapter, &pdev) != 0 )
return 0;
if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL )
goto free_pdev;
if( mega_adapinq(adapter, dma_handle) != 0 ) {
seq_puts(m, "Adapter inquiry failed.\n");
dev_warn(&adapter->dev->dev, "inquiry failed\n");
goto free_inquiry;
}
if( adapter->flag & BOARD_40LD ) {
battery_status = ((mega_inquiry3 *)inquiry)->battery_status;
}
else {
battery_status = ((mraid_ext_inquiry *)inquiry)->
raid_inq.adapter_info.battery_status;
}
seq_printf(m, "Battery Status:[%d]", battery_status);
if(battery_status == MEGA_BATT_CHARGE_DONE)
seq_puts(m, " Charge Done");
if(battery_status & MEGA_BATT_MODULE_MISSING)
seq_puts(m, " Module Missing");
if(battery_status & MEGA_BATT_LOW_VOLTAGE)
seq_puts(m, " Low Voltage");
if(battery_status & MEGA_BATT_TEMP_HIGH)
seq_puts(m, " Temperature High");
if(battery_status & MEGA_BATT_PACK_MISSING)
seq_puts(m, " Pack Missing");
if(battery_status & MEGA_BATT_CHARGE_INPROG)
seq_puts(m, " Charge In-progress");
if(battery_status & MEGA_BATT_CHARGE_FAIL)
seq_puts(m, " Charge Fail");
if(battery_status & MEGA_BATT_CYCLES_EXCEEDED)
seq_puts(m, " Cycles Exceeded");
seq_putc(m, '\n');
free_inquiry:
mega_free_inquiry(inquiry, dma_handle, pdev);
free_pdev:
free_local_pdev(pdev);
return 0;
}
static void
mega_print_inquiry(struct seq_file *m, char *scsi_inq)
{
int i;
seq_puts(m, " Vendor: ");
seq_write(m, scsi_inq + 8, 8);
seq_puts(m, " Model: ");
seq_write(m, scsi_inq + 16, 16);
seq_puts(m, " Rev: ");
seq_write(m, scsi_inq + 32, 4);
seq_putc(m, '\n');
i = scsi_inq[0] & 0x1f;
seq_printf(m, " Type: %s ", scsi_device_type(i));
seq_printf(m, " ANSI SCSI revision: %02x",
scsi_inq[2] & 0x07);
if( (scsi_inq[2] & 0x07) == 1 && (scsi_inq[3] & 0x0f) == 1 )
seq_puts(m, " CCS\n");
else
seq_putc(m, '\n');
}
static int
proc_show_pdrv(struct seq_file *m, adapter_t *adapter, int channel)
{
dma_addr_t dma_handle;
char *scsi_inq;
dma_addr_t scsi_inq_dma_handle;
caddr_t inquiry;
struct pci_dev *pdev;
u8 *pdrv_state;
u8 state;
int tgt;
int max_channels;
int i;
if( make_local_pdev(adapter, &pdev) != 0 )
return 0;
if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL )
goto free_pdev;
if( mega_adapinq(adapter, dma_handle) != 0 ) {
seq_puts(m, "Adapter inquiry failed.\n");
dev_warn(&adapter->dev->dev, "inquiry failed\n");
goto free_inquiry;
}
scsi_inq = dma_alloc_coherent(&pdev->dev, 256, &scsi_inq_dma_handle,
GFP_KERNEL);
if( scsi_inq == NULL ) {
seq_puts(m, "memory not available for scsi inq.\n");
goto free_inquiry;
}
if( adapter->flag & BOARD_40LD ) {
pdrv_state = ((mega_inquiry3 *)inquiry)->pdrv_state;
}
else {
pdrv_state = ((mraid_ext_inquiry *)inquiry)->
raid_inq.pdrv_info.pdrv_state;
}
max_channels = adapter->product_info.nchannels;
if( channel >= max_channels ) {
goto free_pci;
}
for( tgt = 0; tgt <= MAX_TARGET; tgt++ ) {
i = channel*16 + tgt;
state = *(pdrv_state + i);
switch( state & 0x0F ) {
case PDRV_ONLINE:
seq_printf(m, "Channel:%2d Id:%2d State: Online",
channel, tgt);
break;
case PDRV_FAILED:
seq_printf(m, "Channel:%2d Id:%2d State: Failed",
channel, tgt);
break;
case PDRV_RBLD:
seq_printf(m, "Channel:%2d Id:%2d State: Rebuild",
channel, tgt);
break;
case PDRV_HOTSPARE:
seq_printf(m, "Channel:%2d Id:%2d State: Hot spare",
channel, tgt);
break;
default:
seq_printf(m, "Channel:%2d Id:%2d State: Un-configured",
channel, tgt);
break;
}
memset(scsi_inq, 0, 256);
if( mega_internal_dev_inquiry(adapter, channel, tgt,
scsi_inq_dma_handle) ||
(scsi_inq[0] & 0x1F) != TYPE_DISK ) {
continue;
}
seq_puts(m, ".\n");
mega_print_inquiry(m, scsi_inq);
}
free_pci:
dma_free_coherent(&pdev->dev, 256, scsi_inq, scsi_inq_dma_handle);
free_inquiry:
mega_free_inquiry(inquiry, dma_handle, pdev);
free_pdev:
free_local_pdev(pdev);
return 0;
}
static int
proc_show_pdrv_ch0(struct seq_file *m, void *v)
{
return proc_show_pdrv(m, m->private, 0);
}
static int
proc_show_pdrv_ch1(struct seq_file *m, void *v)
{
return proc_show_pdrv(m, m->private, 1);
}
static int
proc_show_pdrv_ch2(struct seq_file *m, void *v)
{
return proc_show_pdrv(m, m->private, 2);
}
static int
proc_show_pdrv_ch3(struct seq_file *m, void *v)
{
return proc_show_pdrv(m, m->private, 3);
}
static int
proc_show_rdrv(struct seq_file *m, adapter_t *adapter, int start, int end )
{
dma_addr_t dma_handle;
logdrv_param *lparam;
megacmd_t mc;
char *disk_array;
dma_addr_t disk_array_dma_handle;
caddr_t inquiry;
struct pci_dev *pdev;
u8 *rdrv_state;
int num_ldrv;
u32 array_sz;
int i;
if( make_local_pdev(adapter, &pdev) != 0 )
return 0;
if( (inquiry = mega_allocate_inquiry(&dma_handle, pdev)) == NULL )
goto free_pdev;
if( mega_adapinq(adapter, dma_handle) != 0 ) {
seq_puts(m, "Adapter inquiry failed.\n");
dev_warn(&adapter->dev->dev, "inquiry failed\n");
goto free_inquiry;
}
memset(&mc, 0, sizeof(megacmd_t));
if( adapter->flag & BOARD_40LD ) {
array_sz = sizeof(disk_array_40ld);
rdrv_state = ((mega_inquiry3 *)inquiry)->ldrv_state;
num_ldrv = ((mega_inquiry3 *)inquiry)->num_ldrv;
}
else {
array_sz = sizeof(disk_array_8ld);
rdrv_state = ((mraid_ext_inquiry *)inquiry)->
raid_inq.logdrv_info.ldrv_state;
num_ldrv = ((mraid_ext_inquiry *)inquiry)->
raid_inq.logdrv_info.num_ldrv;
}
disk_array = dma_alloc_coherent(&pdev->dev, array_sz,
&disk_array_dma_handle, GFP_KERNEL);
if( disk_array == NULL ) {
seq_puts(m, "memory not available.\n");
goto free_inquiry;
}
mc.xferaddr = (u32)disk_array_dma_handle;
if( adapter->flag & BOARD_40LD ) {
mc.cmd = FC_NEW_CONFIG;
mc.opcode = OP_DCMD_READ_CONFIG;
if( mega_internal_command(adapter, &mc, NULL) ) {
seq_puts(m, "40LD read config failed.\n");
goto free_pci;
}
}
else {
mc.cmd = NEW_READ_CONFIG_8LD;
if( mega_internal_command(adapter, &mc, NULL) ) {
mc.cmd = READ_CONFIG_8LD;
if( mega_internal_command(adapter, &mc, NULL) ) {
seq_puts(m, "8LD read config failed.\n");
goto free_pci;
}
}
}
for( i = start; i < ( (end+1 < num_ldrv) ? end+1 : num_ldrv ); i++ ) {
if( adapter->flag & BOARD_40LD ) {
lparam =
&((disk_array_40ld *)disk_array)->ldrv[i].lparam;
}
else {
lparam =
&((disk_array_8ld *)disk_array)->ldrv[i].lparam;
}
seq_printf(m, "Logical drive:%2d:, ", i);
switch( rdrv_state[i] & 0x0F ) {
case RDRV_OFFLINE:
seq_puts(m, "state: offline");
break;
case RDRV_DEGRADED:
seq_puts(m, "state: degraded");
break;
case RDRV_OPTIMAL:
seq_puts(m, "state: optimal");
break;
case RDRV_DELETED:
seq_puts(m, "state: deleted");
break;
default:
seq_puts(m, "state: unknown");
break;
}
if( (rdrv_state[i] & 0xF0) == 0x20 )
seq_puts(m, ", check-consistency in progress");
else if( (rdrv_state[i] & 0xF0) == 0x10 )
seq_puts(m, ", initialization in progress");
seq_putc(m, '\n');
seq_printf(m, "Span depth:%3d, ", lparam->span_depth);
seq_printf(m, "RAID level:%3d, ", lparam->level);
seq_printf(m, "Stripe size:%3d, ",
lparam->stripe_sz ? lparam->stripe_sz/2: 128);
seq_printf(m, "Row size:%3d\n", lparam->row_size);
seq_puts(m, "Read Policy: ");
switch(lparam->read_ahead) {
case NO_READ_AHEAD:
seq_puts(m, "No read ahead, ");
break;
case READ_AHEAD:
seq_puts(m, "Read ahead, ");
break;
case ADAP_READ_AHEAD:
seq_puts(m, "Adaptive, ");
break;
}
seq_puts(m, "Write Policy: ");
switch(lparam->write_mode) {
case WRMODE_WRITE_THRU:
seq_puts(m, "Write thru, ");
break;
case WRMODE_WRITE_BACK:
seq_puts(m, "Write back, ");
break;
}
seq_puts(m, "Cache Policy: ");
switch(lparam->direct_io) {
case CACHED_IO:
seq_puts(m, "Cached IO\n\n");
break;
case DIRECT_IO:
seq_puts(m, "Direct IO\n\n");
break;
}
}
free_pci:
dma_free_coherent(&pdev->dev, array_sz, disk_array,
disk_array_dma_handle);
free_inquiry:
mega_free_inquiry(inquiry, dma_handle, pdev);
free_pdev:
free_local_pdev(pdev);
return 0;
}
static int
proc_show_rdrv_10(struct seq_file *m, void *v)
{
return proc_show_rdrv(m, m->private, 0, 9);
}
static int
proc_show_rdrv_20(struct seq_file *m, void *v)
{
return proc_show_rdrv(m, m->private, 10, 19);
}
static int
proc_show_rdrv_30(struct seq_file *m, void *v)
{
return proc_show_rdrv(m, m->private, 20, 29);
}
static int
proc_show_rdrv_40(struct seq_file *m, void *v)
{
return proc_show_rdrv(m, m->private, 30, 39);
}
static void
mega_create_proc_entry(int index, struct proc_dir_entry *parent)
{
adapter_t *adapter = hba_soft_state[index];
struct proc_dir_entry *dir;
u8 string[16];
sprintf(string, "hba%d", adapter->host->host_no);
dir = proc_mkdir_data(string, 0, parent, adapter);
if (!dir) {
dev_warn(&adapter->dev->dev, "proc_mkdir failed\n");
return;
}
proc_create_single_data("config", S_IRUSR, dir,
proc_show_config, adapter);
proc_create_single_data("stat", S_IRUSR, dir,
proc_show_stat, adapter);
proc_create_single_data("mailbox", S_IRUSR, dir,
proc_show_mbox, adapter);
#if MEGA_HAVE_ENH_PROC
proc_create_single_data("rebuild-rate", S_IRUSR, dir,
proc_show_rebuild_rate, adapter);
proc_create_single_data("battery-status", S_IRUSR, dir,
proc_show_battery, adapter);
proc_create_single_data("diskdrives-ch0", S_IRUSR, dir,
proc_show_pdrv_ch0, adapter);
proc_create_single_data("diskdrives-ch1", S_IRUSR, dir,
proc_show_pdrv_ch1, adapter);
proc_create_single_data("diskdrives-ch2", S_IRUSR, dir,
proc_show_pdrv_ch2, adapter);
proc_create_single_data("diskdrives-ch3", S_IRUSR, dir,
proc_show_pdrv_ch3, adapter);
proc_create_single_data("raiddrives-0-9", S_IRUSR, dir,
proc_show_rdrv_10, adapter);
proc_create_single_data("raiddrives-10-19", S_IRUSR, dir,
proc_show_rdrv_20, adapter);
proc_create_single_data("raiddrives-20-29", S_IRUSR, dir,
proc_show_rdrv_30, adapter);
proc_create_single_data("raiddrives-30-39", S_IRUSR, dir,
proc_show_rdrv_40, adapter);
#endif
}
#else
static inline void mega_create_proc_entry(int index, struct proc_dir_entry *parent)
{
}
#endif
static int
megaraid_biosparam(struct scsi_device *sdev, struct gendisk *disk,
sector_t capacity, int geom[])
{
adapter_t *adapter;
int heads;
int sectors;
int cylinders;
adapter = (adapter_t *)sdev->host->hostdata;
if (IS_RAID_CH(adapter, sdev->channel)) {
heads = 64;
sectors = 32;
cylinders = (ulong)capacity / (heads * sectors);
if ((ulong)capacity >= 0x200000) {
heads = 255;
sectors = 63;
cylinders = (ulong)capacity / (heads * sectors);
}
geom[0] = heads;
geom[1] = sectors;
geom[2] = cylinders;
}
else {
if (scsi_partsize(disk, capacity, geom))
return 0;
dev_info(&adapter->dev->dev,
"invalid partition on this disk on channel %d\n",
sdev->channel);
heads = 64;
sectors = 32;
cylinders = (ulong)capacity / (heads * sectors);
if ((ulong)capacity >= 0x200000) {
heads = 255;
sectors = 63;
cylinders = (ulong)capacity / (heads * sectors);
}
geom[0] = heads;
geom[1] = sectors;
geom[2] = cylinders;
}
return 0;
}
static int
mega_init_scb(adapter_t *adapter)
{
scb_t *scb;
int i;
for( i = 0; i < adapter->max_cmds; i++ ) {
scb = &adapter->scb_list[i];
scb->sgl64 = NULL;
scb->sgl = NULL;
scb->pthru = NULL;
scb->epthru = NULL;
}
for( i = 0; i < adapter->max_cmds; i++ ) {
scb = &adapter->scb_list[i];
scb->idx = i;
scb->sgl64 = dma_alloc_coherent(&adapter->dev->dev,
sizeof(mega_sgl64) * adapter->sglen,
&scb->sgl_dma_addr, GFP_KERNEL);
scb->sgl = (mega_sglist *)scb->sgl64;
if( !scb->sgl ) {
dev_warn(&adapter->dev->dev, "RAID: Can't allocate sglist\n");
mega_free_sgl(adapter);
return -1;
}
scb->pthru = dma_alloc_coherent(&adapter->dev->dev,
sizeof(mega_passthru),
&scb->pthru_dma_addr, GFP_KERNEL);
if( !scb->pthru ) {
dev_warn(&adapter->dev->dev, "RAID: Can't allocate passthru\n");
mega_free_sgl(adapter);
return -1;
}
scb->epthru = dma_alloc_coherent(&adapter->dev->dev,
sizeof(mega_ext_passthru),
&scb->epthru_dma_addr, GFP_KERNEL);
if( !scb->epthru ) {
dev_warn(&adapter->dev->dev,
"Can't allocate extended passthru\n");
mega_free_sgl(adapter);
return -1;
}
scb->dma_type = MEGA_DMA_TYPE_NONE;
scb->state = SCB_FREE;
scb->cmd = NULL;
list_add(&scb->list, &adapter->free_list);
}
return 0;
}
static int
megadev_open (struct inode *inode, struct file *filep)
{
if( !capable(CAP_SYS_ADMIN) ) return -EACCES;
return 0;
}
static int
megadev_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
{
adapter_t *adapter;
nitioctl_t uioc;
int adapno;
int rval;
mega_passthru __user *upthru;
mega_passthru *pthru;
dma_addr_t pthru_dma_hndl;
void *data = NULL;
dma_addr_t data_dma_hndl;
megacmd_t mc;
#if MEGA_HAVE_STATS
megastat_t __user *ustats = NULL;
int num_ldrv = 0;
#endif
u32 uxferaddr = 0;
struct pci_dev *pdev;
if( (_IOC_TYPE(cmd) != MEGAIOC_MAGIC) && (cmd != USCSICMD) ) {
return -EINVAL;
}
memset(&uioc, 0, sizeof(nitioctl_t));
if( (rval = mega_m_to_n( (void __user *)arg, &uioc)) != 0 )
return rval;
switch( uioc.opcode ) {
case GET_DRIVER_VER:
if( put_user(driver_ver, (u32 __user *)uioc.uioc_uaddr) )
return (-EFAULT);
break;
case GET_N_ADAP:
if( put_user(hba_count, (u32 __user *)uioc.uioc_uaddr) )
return (-EFAULT);
return hba_count;
case GET_ADAP_INFO:
if( (adapno = GETADAP(uioc.adapno)) >= hba_count )
return (-ENODEV);
if( copy_to_user(uioc.uioc_uaddr, mcontroller+adapno,
sizeof(struct mcontroller)) )
return (-EFAULT);
break;
#if MEGA_HAVE_STATS
case GET_STATS:
if( (adapno = GETADAP(uioc.adapno)) >= hba_count )
return (-ENODEV);
adapter = hba_soft_state[adapno];
ustats = uioc.uioc_uaddr;
if( copy_from_user(&num_ldrv, &ustats->num_ldrv, sizeof(int)) )
return (-EFAULT);
if( num_ldrv >= MAX_LOGICAL_DRIVES_40LD ) return -EINVAL;
if( copy_to_user(ustats->nreads, adapter->nreads,
num_ldrv*sizeof(u32)) )
return -EFAULT;
if( copy_to_user(ustats->nreadblocks, adapter->nreadblocks,
num_ldrv*sizeof(u32)) )
return -EFAULT;
if( copy_to_user(ustats->nwrites, adapter->nwrites,
num_ldrv*sizeof(u32)) )
return -EFAULT;
if( copy_to_user(ustats->nwriteblocks, adapter->nwriteblocks,
num_ldrv*sizeof(u32)) )
return -EFAULT;
if( copy_to_user(ustats->rd_errors, adapter->rd_errors,
num_ldrv*sizeof(u32)) )
return -EFAULT;
if( copy_to_user(ustats->wr_errors, adapter->wr_errors,
num_ldrv*sizeof(u32)) )
return -EFAULT;
return 0;
#endif
case MBOX_CMD:
if( (adapno = GETADAP(uioc.adapno)) >= hba_count )
return (-ENODEV);
adapter = hba_soft_state[adapno];
if( uioc.uioc_rmbox[0] == FC_DEL_LOGDRV &&
uioc.uioc_rmbox[2] == OP_DEL_LOGDRV ) {
if( !adapter->support_random_del ) {
dev_warn(&adapter->dev->dev, "logdrv "
"delete on non-supporting F/W\n");
return (-EINVAL);
}
rval = mega_del_logdrv( adapter, uioc.uioc_rmbox[3] );
if( rval == 0 ) {
memset(&mc, 0, sizeof(megacmd_t));
mc.status = rval;
rval = mega_n_to_m((void __user *)arg, &mc);
}
return rval;
}
if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU64 ||
uioc.uioc_rmbox[0] == MEGA_MBOXCMD_EXTPTHRU ) {
dev_warn(&adapter->dev->dev, "rejected passthru\n");
return (-EINVAL);
}
if( make_local_pdev(adapter, &pdev) != 0 )
return -EIO;
if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU ) {
pthru = dma_alloc_coherent(&pdev->dev,
sizeof(mega_passthru),
&pthru_dma_hndl, GFP_KERNEL);
if( pthru == NULL ) {
free_local_pdev(pdev);
return (-ENOMEM);
}
upthru = (mega_passthru __user *)(unsigned long)MBOX(uioc)->xferaddr;
if( copy_from_user(pthru, upthru,
sizeof(mega_passthru)) ) {
dma_free_coherent(&pdev->dev,
sizeof(mega_passthru),
pthru, pthru_dma_hndl);
free_local_pdev(pdev);
return (-EFAULT);
}
if( pthru->dataxferlen ) {
data = dma_alloc_coherent(&pdev->dev,
pthru->dataxferlen,
&data_dma_hndl,
GFP_KERNEL);
if( data == NULL ) {
dma_free_coherent(&pdev->dev,
sizeof(mega_passthru),
pthru,
pthru_dma_hndl);
free_local_pdev(pdev);
return (-ENOMEM);
}
uxferaddr = pthru->dataxferaddr;
pthru->dataxferaddr = data_dma_hndl;
}
if( pthru->dataxferlen && (uioc.flags & UIOC_WR) ) {
if( copy_from_user(data, (char __user *)(unsigned long) uxferaddr,
pthru->dataxferlen) ) {
rval = (-EFAULT);
goto freemem_and_return;
}
}
memset(&mc, 0, sizeof(megacmd_t));
mc.cmd = MEGA_MBOXCMD_PASSTHRU;
mc.xferaddr = (u32)pthru_dma_hndl;
mega_internal_command(adapter, &mc, pthru);
rval = mega_n_to_m((void __user *)arg, &mc);
if( rval ) goto freemem_and_return;
if( pthru->dataxferlen && (uioc.flags & UIOC_RD) ) {
if( copy_to_user((char __user *)(unsigned long) uxferaddr, data,
pthru->dataxferlen) ) {
rval = (-EFAULT);
}
}
if (copy_to_user(upthru->reqsensearea,
pthru->reqsensearea, 14))
rval = -EFAULT;
freemem_and_return:
if( pthru->dataxferlen ) {
dma_free_coherent(&pdev->dev,
pthru->dataxferlen, data,
data_dma_hndl);
}
dma_free_coherent(&pdev->dev, sizeof(mega_passthru),
pthru, pthru_dma_hndl);
free_local_pdev(pdev);
return rval;
}
else {
if( uioc.xferlen ) {
data = dma_alloc_coherent(&pdev->dev,
uioc.xferlen,
&data_dma_hndl,
GFP_KERNEL);
if( data == NULL ) {
free_local_pdev(pdev);
return (-ENOMEM);
}
uxferaddr = MBOX(uioc)->xferaddr;
}
if( uioc.xferlen && (uioc.flags & UIOC_WR) ) {
if( copy_from_user(data, (char __user *)(unsigned long) uxferaddr,
uioc.xferlen) ) {
dma_free_coherent(&pdev->dev,
uioc.xferlen, data,
data_dma_hndl);
free_local_pdev(pdev);
return (-EFAULT);
}
}
memcpy(&mc, MBOX(uioc), sizeof(megacmd_t));
mc.xferaddr = (u32)data_dma_hndl;
mega_internal_command(adapter, &mc, NULL);
rval = mega_n_to_m((void __user *)arg, &mc);
if( rval ) {
if( uioc.xferlen ) {
dma_free_coherent(&pdev->dev,
uioc.xferlen, data,
data_dma_hndl);
}
free_local_pdev(pdev);
return rval;
}
if( uioc.xferlen && (uioc.flags & UIOC_RD) ) {
if( copy_to_user((char __user *)(unsigned long) uxferaddr, data,
uioc.xferlen) ) {
rval = (-EFAULT);
}
}
if( uioc.xferlen ) {
dma_free_coherent(&pdev->dev, uioc.xferlen,
data, data_dma_hndl);
}
free_local_pdev(pdev);
return rval;
}
default:
return (-EINVAL);
}
return 0;
}
static long
megadev_unlocked_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
{
int ret;
mutex_lock(&megadev_mutex);
ret = megadev_ioctl(filep, cmd, arg);
mutex_unlock(&megadev_mutex);
return ret;
}
static int
mega_m_to_n(void __user *arg, nitioctl_t *uioc)
{
struct uioctl_t uioc_mimd;
char signature[8] = {0};
u8 opcode;
u8 subopcode;
if( copy_from_user(signature, arg, 7) )
return (-EFAULT);
if( memcmp(signature, "MEGANIT", 7) == 0 ) {
return -EINVAL;
#if 0
if( copy_from_user(uioc, arg, sizeof(nitioctl_t)) )
return (-EFAULT);
return 0;
#endif
}
if( copy_from_user(&uioc_mimd, arg, sizeof(struct uioctl_t)) )
return (-EFAULT);
opcode = uioc_mimd.ui.fcs.opcode;
subopcode = uioc_mimd.ui.fcs.subopcode;
switch (opcode) {
case 0x82:
switch (subopcode) {
case MEGAIOC_QDRVRVER:
uioc->opcode = GET_DRIVER_VER;
uioc->uioc_uaddr = uioc_mimd.data;
break;
case MEGAIOC_QNADAP:
uioc->opcode = GET_N_ADAP;
uioc->uioc_uaddr = uioc_mimd.data;
break;
case MEGAIOC_QADAPINFO:
uioc->opcode = GET_ADAP_INFO;
uioc->adapno = uioc_mimd.ui.fcs.adapno;
uioc->uioc_uaddr = uioc_mimd.data;
break;
default:
return(-EINVAL);
}
break;
case 0x81:
uioc->opcode = MBOX_CMD;
uioc->adapno = uioc_mimd.ui.fcs.adapno;
memcpy(uioc->uioc_rmbox, uioc_mimd.mbox, 18);
uioc->xferlen = uioc_mimd.ui.fcs.length;
if( uioc_mimd.outlen ) uioc->flags = UIOC_RD;
if( uioc_mimd.inlen ) uioc->flags |= UIOC_WR;
break;
case 0x80:
uioc->opcode = MBOX_CMD;
uioc->adapno = uioc_mimd.ui.fcs.adapno;
memcpy(uioc->uioc_rmbox, uioc_mimd.mbox, 18);
uioc->xferlen = uioc_mimd.outlen > uioc_mimd.inlen ?
uioc_mimd.outlen : uioc_mimd.inlen;
if( uioc_mimd.outlen ) uioc->flags = UIOC_RD;
if( uioc_mimd.inlen ) uioc->flags |= UIOC_WR;
break;
default:
return (-EINVAL);
}
return 0;
}
static int
mega_n_to_m(void __user *arg, megacmd_t *mc)
{
nitioctl_t __user *uiocp;
megacmd_t __user *umc;
mega_passthru __user *upthru;
struct uioctl_t __user *uioc_mimd;
char signature[8] = {0};
if( copy_from_user(signature, arg, 7) )
return -EFAULT;
if( memcmp(signature, "MEGANIT", 7) == 0 ) {
uiocp = arg;
if( put_user(mc->status, (u8 __user *)&MBOX_P(uiocp)->status) )
return (-EFAULT);
if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) {
umc = MBOX_P(uiocp);
if (get_user(upthru, (mega_passthru __user * __user *)&umc->xferaddr))
return -EFAULT;
if( put_user(mc->status, (u8 __user *)&upthru->scsistatus))
return (-EFAULT);
}
}
else {
uioc_mimd = arg;
if( put_user(mc->status, (u8 __user *)&uioc_mimd->mbox[17]) )
return (-EFAULT);
if( mc->cmd == MEGA_MBOXCMD_PASSTHRU ) {
umc = (megacmd_t __user *)uioc_mimd->mbox;
if (get_user(upthru, (mega_passthru __user * __user *)&umc->xferaddr))
return (-EFAULT);
if( put_user(mc->status, (u8 __user *)&upthru->scsistatus) )
return (-EFAULT);
}
}
return 0;
}
static int
mega_is_bios_enabled(adapter_t *adapter)
{
struct mbox_out mbox;
unsigned char *raw_mbox = (u8 *)&mbox;
memset(&mbox, 0, sizeof(mbox));
memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE);
mbox.xferaddr = (u32)adapter->buf_dma_handle;
raw_mbox[0] = IS_BIOS_ENABLED;
raw_mbox[2] = GET_BIOS;
issue_scb_block(adapter, raw_mbox);
return *(char *)adapter->mega_buffer;
}
static void
mega_enum_raid_scsi(adapter_t *adapter)
{
struct mbox_out mbox;
unsigned char *raw_mbox = (u8 *)&mbox;
int i;
memset(&mbox, 0, sizeof(mbox));
raw_mbox[0] = CHNL_CLASS;
raw_mbox[2] = GET_CHNL_CLASS;
memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE);
mbox.xferaddr = (u32)adapter->buf_dma_handle;
adapter->mega_ch_class = 0xFF;
if(!issue_scb_block(adapter, raw_mbox)) {
adapter->mega_ch_class = *((char *)adapter->mega_buffer);
}
for( i = 0; i < adapter->product_info.nchannels; i++ ) {
if( (adapter->mega_ch_class >> i) & 0x01 ) {
dev_info(&adapter->dev->dev, "channel[%d] is raid\n",
i);
}
else {
dev_info(&adapter->dev->dev, "channel[%d] is scsi\n",
i);
}
}
return;
}
static void
mega_get_boot_drv(adapter_t *adapter)
{
struct private_bios_data *prv_bios_data;
struct mbox_out mbox;
unsigned char *raw_mbox = (u8 *)&mbox;
u16 cksum = 0;
u8 *cksum_p;
u8 boot_pdrv;
int i;
memset(&mbox, 0, sizeof(mbox));
raw_mbox[0] = BIOS_PVT_DATA;
raw_mbox[2] = GET_BIOS_PVT_DATA;
memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE);
mbox.xferaddr = (u32)adapter->buf_dma_handle;
adapter->boot_ldrv_enabled = 0;
adapter->boot_ldrv = 0;
adapter->boot_pdrv_enabled = 0;
adapter->boot_pdrv_ch = 0;
adapter->boot_pdrv_tgt = 0;
if(issue_scb_block(adapter, raw_mbox) == 0) {
prv_bios_data =
(struct private_bios_data *)adapter->mega_buffer;
cksum = 0;
cksum_p = (char *)prv_bios_data;
for (i = 0; i < 14; i++ ) {
cksum += (u16)(*cksum_p++);
}
if (prv_bios_data->cksum == (u16)(0-cksum) ) {
if( prv_bios_data->boot_drv & 0x80 ) {
adapter->boot_pdrv_enabled = 1;
boot_pdrv = prv_bios_data->boot_drv & 0x7F;
adapter->boot_pdrv_ch = boot_pdrv / 16;
adapter->boot_pdrv_tgt = boot_pdrv % 16;
}
else {
adapter->boot_ldrv_enabled = 1;
adapter->boot_ldrv = prv_bios_data->boot_drv;
}
}
}
}
static int
mega_support_random_del(adapter_t *adapter)
{
struct mbox_out mbox;
unsigned char *raw_mbox = (u8 *)&mbox;
int rval;
memset(&mbox, 0, sizeof(mbox));
raw_mbox[0] = FC_DEL_LOGDRV;
raw_mbox[2] = OP_SUP_DEL_LOGDRV;
rval = issue_scb_block(adapter, raw_mbox);
return !rval;
}
static int
mega_support_ext_cdb(adapter_t *adapter)
{
struct mbox_out mbox;
unsigned char *raw_mbox = (u8 *)&mbox;
int rval;
memset(&mbox, 0, sizeof(mbox));
raw_mbox[0] = 0xA4;
raw_mbox[2] = 0x16;
rval = issue_scb_block(adapter, raw_mbox);
return !rval;
}
static int
mega_del_logdrv(adapter_t *adapter, int logdrv)
{
unsigned long flags;
scb_t *scb;
int rval;
atomic_set(&adapter->quiescent, 1);
while (atomic_read(&adapter->pend_cmds) > 0 ||
!list_empty(&adapter->pending_list))
msleep(1000);
rval = mega_do_del_logdrv(adapter, logdrv);
spin_lock_irqsave(&adapter->lock, flags);
if (adapter->read_ldidmap) {
struct list_head *pos;
list_for_each(pos, &adapter->pending_list) {
scb = list_entry(pos, scb_t, list);
if (scb->pthru->logdrv < 0x80 )
scb->pthru->logdrv += 0x80;
}
}
atomic_set(&adapter->quiescent, 0);
mega_runpendq(adapter);
spin_unlock_irqrestore(&adapter->lock, flags);
return rval;
}
static int
mega_do_del_logdrv(adapter_t *adapter, int logdrv)
{
megacmd_t mc;
int rval;
memset( &mc, 0, sizeof(megacmd_t));
mc.cmd = FC_DEL_LOGDRV;
mc.opcode = OP_DEL_LOGDRV;
mc.subopcode = logdrv;
rval = mega_internal_command(adapter, &mc, NULL);
if(rval) {
dev_warn(&adapter->dev->dev, "Delete LD-%d failed", logdrv);
return rval;
}
adapter->read_ldidmap = 1;
return rval;
}
static void
mega_get_max_sgl(adapter_t *adapter)
{
struct mbox_out mbox;
unsigned char *raw_mbox = (u8 *)&mbox;
memset(&mbox, 0, sizeof(mbox));
memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE);
mbox.xferaddr = (u32)adapter->buf_dma_handle;
raw_mbox[0] = MAIN_MISC_OPCODE;
raw_mbox[2] = GET_MAX_SG_SUPPORT;
if( issue_scb_block(adapter, raw_mbox) ) {
adapter->sglen = MIN_SGLIST;
}
else {
adapter->sglen = *((char *)adapter->mega_buffer);
if ( adapter->sglen > MAX_SGLIST )
adapter->sglen = MAX_SGLIST;
}
return;
}
static int
mega_support_cluster(adapter_t *adapter)
{
struct mbox_out mbox;
unsigned char *raw_mbox = (u8 *)&mbox;
memset(&mbox, 0, sizeof(mbox));
memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE);
mbox.xferaddr = (u32)adapter->buf_dma_handle;
raw_mbox[0] = MEGA_GET_TARGET_ID;
if( issue_scb_block(adapter, raw_mbox) == 0 ) {
adapter->this_id = *(u32 *)adapter->mega_buffer;
adapter->host->this_id = adapter->this_id;
return 1;
}
return 0;
}
#ifdef CONFIG_PROC_FS
static int
mega_adapinq(adapter_t *adapter, dma_addr_t dma_handle)
{
megacmd_t mc;
memset(&mc, 0, sizeof(megacmd_t));
if( adapter->flag & BOARD_40LD ) {
mc.cmd = FC_NEW_CONFIG;
mc.opcode = NC_SUBOP_ENQUIRY3;
mc.subopcode = ENQ3_GET_SOLICITED_FULL;
}
else {
mc.cmd = MEGA_MBOXCMD_ADPEXTINQ;
}
mc.xferaddr = (u32)dma_handle;
if ( mega_internal_command(adapter, &mc, NULL) != 0 ) {
return -1;
}
return 0;
}
static int
mega_internal_dev_inquiry(adapter_t *adapter, u8 ch, u8 tgt,
dma_addr_t buf_dma_handle)
{
mega_passthru *pthru;
dma_addr_t pthru_dma_handle;
megacmd_t mc;
int rval;
struct pci_dev *pdev;
if( make_local_pdev(adapter, &pdev) != 0 ) return -1;
pthru = dma_alloc_coherent(&pdev->dev, sizeof(mega_passthru),
&pthru_dma_handle, GFP_KERNEL);
if( pthru == NULL ) {
free_local_pdev(pdev);
return -1;
}
pthru->timeout = 2;
pthru->ars = 1;
pthru->reqsenselen = 14;
pthru->islogical = 0;
pthru->channel = (adapter->flag & BOARD_40LD) ? 0 : ch;
pthru->target = (adapter->flag & BOARD_40LD) ? (ch << 4)|tgt : tgt;
pthru->cdblen = 6;
pthru->cdb[0] = INQUIRY;
pthru->cdb[1] = 0;
pthru->cdb[2] = 0;
pthru->cdb[3] = 0;
pthru->cdb[4] = 255;
pthru->cdb[5] = 0;
pthru->dataxferaddr = (u32)buf_dma_handle;
pthru->dataxferlen = 256;
memset(&mc, 0, sizeof(megacmd_t));
mc.cmd = MEGA_MBOXCMD_PASSTHRU;
mc.xferaddr = (u32)pthru_dma_handle;
rval = mega_internal_command(adapter, &mc, pthru);
dma_free_coherent(&pdev->dev, sizeof(mega_passthru), pthru,
pthru_dma_handle);
free_local_pdev(pdev);
return rval;
}
#endif
static int
mega_internal_command(adapter_t *adapter, megacmd_t *mc, mega_passthru *pthru)
{
unsigned long flags;
scb_t *scb;
int rval;
mutex_lock(&adapter->int_mtx);
scb = &adapter->int_scb;
memset(scb, 0, sizeof(scb_t));
scb->idx = CMDID_INT_CMDS;
scb->state |= SCB_ACTIVE | SCB_PENDQ;
memcpy(scb->raw_mbox, mc, sizeof(megacmd_t));
if (mc->cmd == MEGA_MBOXCMD_PASSTHRU)
scb->pthru = pthru;
spin_lock_irqsave(&adapter->lock, flags);
list_add_tail(&scb->list, &adapter->pending_list);
if (atomic_read(&adapter->quiescent) == 0)
mega_runpendq(adapter);
spin_unlock_irqrestore(&adapter->lock, flags);
wait_for_completion(&adapter->int_waitq);
mc->status = rval = adapter->int_status;
if (rval && trace_level) {
dev_info(&adapter->dev->dev, "cmd [%x, %x, %x] status:[%x]\n",
mc->cmd, mc->opcode, mc->subopcode, rval);
}
mutex_unlock(&adapter->int_mtx);
return rval;
}
static const struct scsi_host_template megaraid_template = {
.module = THIS_MODULE,
.name = "MegaRAID",
.proc_name = "megaraid_legacy",
.info = megaraid_info,
.queuecommand = megaraid_queue,
.bios_param = megaraid_biosparam,
.max_sectors = MAX_SECTORS_PER_IO,
.can_queue = MAX_COMMANDS,
.this_id = DEFAULT_INITIATOR_ID,
.sg_tablesize = MAX_SGLIST,
.cmd_per_lun = DEF_CMD_PER_LUN,
.eh_abort_handler = megaraid_abort,
.eh_host_reset_handler = megaraid_reset,
.no_write_same = 1,
.cmd_size = sizeof(struct megaraid_cmd_priv),
};
static int
megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct Scsi_Host *host;
adapter_t *adapter;
unsigned long mega_baseport, tbase, flag = 0;
u16 subsysid, subsysvid;
u8 pci_bus, pci_dev_func;
int irq, i, j;
int error = -ENODEV;
if (hba_count >= MAX_CONTROLLERS)
goto out;
if (pci_enable_device(pdev))
goto out;
pci_set_master(pdev);
pci_bus = pdev->bus->number;
pci_dev_func = pdev->devfn;
if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
u16 magic;
if (pdev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ &&
pdev->subsystem_device == 0xC000)
goto out_disable_device;
pci_read_config_word(pdev, PCI_CONF_AMISIG, &magic);
if (magic != HBA_SIGNATURE_471 && magic != HBA_SIGNATURE)
goto out_disable_device;
}
if (id->driver_data & BOARD_64BIT)
flag |= BOARD_64BIT;
else {
u32 magic64;
pci_read_config_dword(pdev, PCI_CONF_AMISIG64, &magic64);
if (magic64 == HBA_SIGNATURE_64BIT)
flag |= BOARD_64BIT;
}
subsysvid = pdev->subsystem_vendor;
subsysid = pdev->subsystem_device;
dev_notice(&pdev->dev, "found 0x%4.04x:0x%4.04x\n",
id->vendor, id->device);
mega_baseport = pci_resource_start(pdev, 0);
irq = pdev->irq;
tbase = mega_baseport;
if (pci_resource_flags(pdev, 0) & IORESOURCE_MEM) {
flag |= BOARD_MEMMAP;
if (!request_mem_region(mega_baseport, 128, "megaraid")) {
dev_warn(&pdev->dev, "mem region busy!\n");
goto out_disable_device;
}
mega_baseport = (unsigned long)ioremap(mega_baseport, 128);
if (!mega_baseport) {
dev_warn(&pdev->dev, "could not map hba memory\n");
goto out_release_region;
}
} else {
flag |= BOARD_IOMAP;
mega_baseport += 0x10;
if (!request_region(mega_baseport, 16, "megaraid"))
goto out_disable_device;
}
host = scsi_host_alloc(&megaraid_template, sizeof(adapter_t));
if (!host)
goto out_iounmap;
adapter = (adapter_t *)host->hostdata;
memset(adapter, 0, sizeof(adapter_t));
dev_notice(&pdev->dev,
"scsi%d:Found MegaRAID controller at 0x%lx, IRQ:%d\n",
host->host_no, mega_baseport, irq);
adapter->base = mega_baseport;
if (flag & BOARD_MEMMAP)
adapter->mmio_base = (void __iomem *) mega_baseport;
INIT_LIST_HEAD(&adapter->free_list);
INIT_LIST_HEAD(&adapter->pending_list);
INIT_LIST_HEAD(&adapter->completed_list);
adapter->flag = flag;
spin_lock_init(&adapter->lock);
host->cmd_per_lun = max_cmd_per_lun;
host->max_sectors = max_sectors_per_io;
adapter->dev = pdev;
adapter->host = host;
adapter->host->irq = irq;
if (flag & BOARD_MEMMAP)
adapter->host->base = tbase;
else {
adapter->host->io_port = tbase;
adapter->host->n_io_port = 16;
}
adapter->host->unique_id = (pci_bus << 8) | pci_dev_func;
adapter->mega_buffer = dma_alloc_coherent(&adapter->dev->dev,
MEGA_BUFFER_SIZE,
&adapter->buf_dma_handle,
GFP_KERNEL);
if (!adapter->mega_buffer) {
dev_warn(&pdev->dev, "out of RAM\n");
goto out_host_put;
}
adapter->scb_list = kmalloc_objs(scb_t, MAX_COMMANDS);
if (!adapter->scb_list) {
dev_warn(&pdev->dev, "out of RAM\n");
goto out_free_cmd_buffer;
}
if (request_irq(irq, (adapter->flag & BOARD_MEMMAP) ?
megaraid_isr_memmapped : megaraid_isr_iomapped,
IRQF_SHARED, "megaraid", adapter)) {
dev_warn(&pdev->dev, "Couldn't register IRQ %d!\n", irq);
goto out_free_scb_list;
}
if (mega_setup_mailbox(adapter))
goto out_free_irq;
if (mega_query_adapter(adapter))
goto out_free_mbox;
if ((subsysid == 0x1111) && (subsysvid == 0x1111)) {
if (!strcmp(adapter->fw_version, "3.00") ||
!strcmp(adapter->fw_version, "3.01")) {
dev_warn(&pdev->dev,
"Your card is a Dell PERC "
"2/SC RAID controller with "
"firmware\nmegaraid: 3.00 or 3.01. "
"This driver is known to have "
"corruption issues\nmegaraid: with "
"those firmware versions on this "
"specific card. In order\nmegaraid: "
"to protect your data, please upgrade "
"your firmware to version\nmegaraid: "
"3.10 or later, available from the "
"Dell Technical Support web\n"
"megaraid: site at\nhttp://support."
"dell.com/us/en/filelib/download/"
"index.asp?fileid=2940\n"
);
}
}
if ((subsysvid == PCI_VENDOR_ID_HP) &&
((subsysid == 0x60E7) || (subsysid == 0x60E8))) {
if (!strcmp(adapter->fw_version, "H01.07") ||
!strcmp(adapter->fw_version, "H01.08") ||
!strcmp(adapter->fw_version, "H01.09") ) {
dev_warn(&pdev->dev,
"Firmware H.01.07, "
"H.01.08, and H.01.09 on 1M/2M "
"controllers\n"
"do not support 64 bit "
"addressing.\nDISABLING "
"64 bit support.\n");
adapter->flag &= ~BOARD_64BIT;
}
}
if (mega_is_bios_enabled(adapter))
mega_hbas[hba_count].is_bios_enabled = 1;
mega_hbas[hba_count].hostdata_addr = adapter;
mega_enum_raid_scsi(adapter);
mega_get_boot_drv(adapter);
if (adapter->boot_pdrv_enabled) {
j = adapter->product_info.nchannels;
for( i = 0; i < j; i++ )
adapter->logdrv_chan[i] = 0;
for( i = j; i < NVIRT_CHAN + j; i++ )
adapter->logdrv_chan[i] = 1;
} else {
for (i = 0; i < NVIRT_CHAN; i++)
adapter->logdrv_chan[i] = 1;
for (i = NVIRT_CHAN; i < MAX_CHANNELS+NVIRT_CHAN; i++)
adapter->logdrv_chan[i] = 0;
adapter->mega_ch_class <<= NVIRT_CHAN;
}
adapter->read_ldidmap = 0;
adapter->support_random_del = mega_support_random_del(adapter);
if (mega_init_scb(adapter))
goto out_free_mbox;
atomic_set(&adapter->pend_cmds, 0);
atomic_set(&adapter->quiescent, 0);
hba_soft_state[hba_count] = adapter;
i = hba_count;
mcontroller[i].base = mega_baseport;
mcontroller[i].irq = irq;
mcontroller[i].numldrv = adapter->numldrv;
mcontroller[i].pcibus = pci_bus;
mcontroller[i].pcidev = id->device;
mcontroller[i].pcifun = PCI_FUNC (pci_dev_func);
mcontroller[i].pciid = -1;
mcontroller[i].pcivendor = id->vendor;
mcontroller[i].pcislot = PCI_SLOT(pci_dev_func);
mcontroller[i].uid = (pci_bus << 8) | pci_dev_func;
if ((adapter->flag & BOARD_64BIT) && (sizeof(dma_addr_t) == 8)) {
dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
adapter->has_64bit_addr = 1;
} else {
dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
adapter->has_64bit_addr = 0;
}
mutex_init(&adapter->int_mtx);
init_completion(&adapter->int_waitq);
adapter->this_id = DEFAULT_INITIATOR_ID;
adapter->host->this_id = DEFAULT_INITIATOR_ID;
#if MEGA_HAVE_CLUSTERING
adapter->has_cluster = mega_support_cluster(adapter);
if (adapter->has_cluster) {
dev_notice(&pdev->dev,
"Cluster driver, initiator id:%d\n",
adapter->this_id);
}
#endif
pci_set_drvdata(pdev, host);
mega_create_proc_entry(hba_count, mega_proc_dir_entry);
error = scsi_add_host(host, &pdev->dev);
if (error)
goto out_free_mbox;
scsi_scan_host(host);
hba_count++;
return 0;
out_free_mbox:
dma_free_coherent(&adapter->dev->dev, sizeof(mbox64_t),
adapter->una_mbox64, adapter->una_mbox64_dma);
out_free_irq:
free_irq(adapter->host->irq, adapter);
out_free_scb_list:
kfree(adapter->scb_list);
out_free_cmd_buffer:
dma_free_coherent(&adapter->dev->dev, MEGA_BUFFER_SIZE,
adapter->mega_buffer, adapter->buf_dma_handle);
out_host_put:
scsi_host_put(host);
out_iounmap:
if (flag & BOARD_MEMMAP)
iounmap((void *)mega_baseport);
out_release_region:
if (flag & BOARD_MEMMAP)
release_mem_region(tbase, 128);
else
release_region(mega_baseport, 16);
out_disable_device:
pci_disable_device(pdev);
out:
return error;
}
static void
__megaraid_shutdown(adapter_t *adapter)
{
u_char raw_mbox[sizeof(struct mbox_out)];
mbox_t *mbox = (mbox_t *)raw_mbox;
int i;
memset(&mbox->m_out, 0, sizeof(raw_mbox));
raw_mbox[0] = FLUSH_ADAPTER;
free_irq(adapter->host->irq, adapter);
issue_scb_block(adapter, raw_mbox);
memset(&mbox->m_out, 0, sizeof(raw_mbox));
raw_mbox[0] = FLUSH_SYSTEM;
issue_scb_block(adapter, raw_mbox);
if (atomic_read(&adapter->pend_cmds) > 0)
dev_warn(&adapter->dev->dev, "pending commands!!\n");
for (i = 0; i <= 10; i++)
mdelay(1000);
}
static void
megaraid_remove_one(struct pci_dev *pdev)
{
struct Scsi_Host *host = pci_get_drvdata(pdev);
adapter_t *adapter = (adapter_t *)host->hostdata;
char buf[12] = { 0 };
scsi_remove_host(host);
__megaraid_shutdown(adapter);
if (adapter->flag & BOARD_MEMMAP) {
iounmap((void *)adapter->base);
release_mem_region(adapter->host->base, 128);
} else
release_region(adapter->base, 16);
mega_free_sgl(adapter);
sprintf(buf, "hba%d", adapter->host->host_no);
remove_proc_subtree(buf, mega_proc_dir_entry);
dma_free_coherent(&adapter->dev->dev, MEGA_BUFFER_SIZE,
adapter->mega_buffer, adapter->buf_dma_handle);
kfree(adapter->scb_list);
dma_free_coherent(&adapter->dev->dev, sizeof(mbox64_t),
adapter->una_mbox64, adapter->una_mbox64_dma);
scsi_host_put(host);
pci_disable_device(pdev);
hba_count--;
}
static void
megaraid_shutdown(struct pci_dev *pdev)
{
struct Scsi_Host *host = pci_get_drvdata(pdev);
adapter_t *adapter = (adapter_t *)host->hostdata;
__megaraid_shutdown(adapter);
}
static const struct pci_device_id megaraid_pci_tbl[] = {
{PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_AMI_MEGARAID3,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{0,}
};
MODULE_DEVICE_TABLE(pci, megaraid_pci_tbl);
static struct pci_driver megaraid_pci_driver = {
.name = "megaraid_legacy",
.id_table = megaraid_pci_tbl,
.probe = megaraid_probe_one,
.remove = megaraid_remove_one,
.shutdown = megaraid_shutdown,
};
static int __init megaraid_init(void)
{
int error;
if ((max_cmd_per_lun <= 0) || (max_cmd_per_lun > MAX_CMD_PER_LUN))
max_cmd_per_lun = MAX_CMD_PER_LUN;
if (max_mbox_busy_wait > MBOX_BUSY_WAIT)
max_mbox_busy_wait = MBOX_BUSY_WAIT;
#ifdef CONFIG_PROC_FS
mega_proc_dir_entry = proc_mkdir("megaraid", NULL);
if (!mega_proc_dir_entry) {
printk(KERN_WARNING
"megaraid: failed to create megaraid root\n");
}
#endif
error = pci_register_driver(&megaraid_pci_driver);
if (error) {
#ifdef CONFIG_PROC_FS
remove_proc_entry("megaraid", NULL);
#endif
return error;
}
major = register_chrdev(0, "megadev_legacy", &megadev_fops);
if (major < 0) {
printk(KERN_WARNING
"megaraid: failed to register char device\n");
}
return 0;
}
static void __exit megaraid_exit(void)
{
unregister_chrdev(major, "megadev_legacy");
pci_unregister_driver(&megaraid_pci_driver);
#ifdef CONFIG_PROC_FS
remove_proc_entry("megaraid", NULL);
#endif
}
module_init(megaraid_init);
module_exit(megaraid_exit);
