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scsi: arcmsr: Add a function to set date and time to firmware
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Add a function arcmsr_set_iop_datetime and driver option set_date_time
to set date and time to firmware.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Ching Huang authored and Martin K. Petersen committed Dec 7, 2017
1 parent 5dd8b3e commit b416c09
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Showing 2 changed files with 131 additions and 0 deletions.
4 changes: 4 additions & 0 deletions drivers/scsi/arcmsr/arcmsr.h
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Original file line number Diff line number Diff line change
Expand Up @@ -80,6 +80,8 @@ struct device_attribute;
#ifndef PCI_DEVICE_ID_ARECA_1884
#define PCI_DEVICE_ID_ARECA_1884 0x1884
#endif
#define ARCMSR_HOURS (1000 * 60 * 60 * 4)
#define ARCMSR_MINUTES (1000 * 60 * 60)
/*
**********************************************************************************
**
Expand Down Expand Up @@ -280,6 +282,7 @@ struct FIRMWARE_INFO
#define ARCMSR_MESSAGE_FLUSH_CACHE 0x00050008
/* (ARCMSR_INBOUND_MESG0_START_BGRB<<16)|ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED) */
#define ARCMSR_MESSAGE_START_BGRB 0x00060008
#define ARCMSR_MESSAGE_SYNC_TIMER 0x00080008
#define ARCMSR_MESSAGE_START_DRIVER_MODE 0x000E0008
#define ARCMSR_MESSAGE_SET_POST_WINDOW 0x000F0008
#define ARCMSR_MESSAGE_ACTIVE_EOI_MODE 0x00100008
Expand Down Expand Up @@ -837,6 +840,7 @@ struct AdapterControlBlock
uint32_t maxOutstanding;
int vector_count;
uint32_t maxFreeCCB;
struct timer_list refresh_timer;
uint32_t doneq_index;
uint32_t ccbsize;
uint32_t in_doorbell;
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127 changes: 127 additions & 0 deletions drivers/scsi/arcmsr/arcmsr_hba.c
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Original file line number Diff line number Diff line change
Expand Up @@ -83,6 +83,10 @@ static int cmd_per_lun = ARCMSR_DEFAULT_CMD_PERLUN;
module_param(cmd_per_lun, int, S_IRUGO);
MODULE_PARM_DESC(cmd_per_lun, " device queue depth(1 ~ 128), default is 32");

static int set_date_time = 0;
module_param(set_date_time, int, S_IRUGO);
MODULE_PARM_DESC(set_date_time, " send date, time to iop(0 ~ 1), set_date_time=1(enable), default(=0) is disable");

#define ARCMSR_SLEEPTIME 10
#define ARCMSR_RETRYCOUNT 12

Expand Down Expand Up @@ -125,6 +129,7 @@ static const char *arcmsr_info(struct Scsi_Host *);
static irqreturn_t arcmsr_interrupt(struct AdapterControlBlock *acb);
static void arcmsr_free_irq(struct pci_dev *, struct AdapterControlBlock *);
static void arcmsr_wait_firmware_ready(struct AdapterControlBlock *acb);
static void arcmsr_set_iop_datetime(struct timer_list *);
static int arcmsr_adjust_disk_queue_depth(struct scsi_device *sdev, int queue_depth)
{
if (queue_depth > ARCMSR_MAX_CMD_PERLUN)
Expand Down Expand Up @@ -852,6 +857,13 @@ arcmsr_request_irq(struct pci_dev *pdev, struct AdapterControlBlock *acb)
return FAILED;
}

static void arcmsr_init_set_datetime_timer(struct AdapterControlBlock *pacb)
{
timer_setup(&pacb->refresh_timer, arcmsr_set_iop_datetime, 0);
pacb->refresh_timer.expires = jiffies + msecs_to_jiffies(60 * 1000);
add_timer(&pacb->refresh_timer);
}

static int arcmsr_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct Scsi_Host *host;
Expand Down Expand Up @@ -941,11 +953,15 @@ static int arcmsr_probe(struct pci_dev *pdev, const struct pci_device_id *id)
timer_setup(&acb->eternal_timer, arcmsr_request_device_map, 0);
acb->eternal_timer.expires = jiffies + msecs_to_jiffies(6 * HZ);
add_timer(&acb->eternal_timer);
if (set_date_time)
arcmsr_init_set_datetime_timer(acb);
if(arcmsr_alloc_sysfs_attr(acb))
goto out_free_sysfs;
scsi_scan_host(host);
return 0;
out_free_sysfs:
if (set_date_time)
del_timer_sync(&acb->refresh_timer);
del_timer_sync(&acb->eternal_timer);
flush_work(&acb->arcmsr_do_message_isr_bh);
arcmsr_stop_adapter_bgrb(acb);
Expand Down Expand Up @@ -988,6 +1004,8 @@ static int arcmsr_suspend(struct pci_dev *pdev, pm_message_t state)
intmask_org = arcmsr_disable_outbound_ints(acb);
arcmsr_free_irq(pdev, acb);
del_timer_sync(&acb->eternal_timer);
if (set_date_time)
del_timer_sync(&acb->refresh_timer);
flush_work(&acb->arcmsr_do_message_isr_bh);
arcmsr_stop_adapter_bgrb(acb);
arcmsr_flush_adapter_cache(acb);
Expand Down Expand Up @@ -1032,6 +1050,8 @@ static int arcmsr_resume(struct pci_dev *pdev)
timer_setup(&acb->eternal_timer, arcmsr_request_device_map, 0);
acb->eternal_timer.expires = jiffies + msecs_to_jiffies(6 * HZ);
add_timer(&acb->eternal_timer);
if (set_date_time)
arcmsr_init_set_datetime_timer(acb);
return 0;
controller_stop:
arcmsr_stop_adapter_bgrb(acb);
Expand Down Expand Up @@ -1422,6 +1442,8 @@ static void arcmsr_remove(struct pci_dev *pdev)
scsi_remove_host(host);
flush_work(&acb->arcmsr_do_message_isr_bh);
del_timer_sync(&acb->eternal_timer);
if (set_date_time)
del_timer_sync(&acb->refresh_timer);
arcmsr_disable_outbound_ints(acb);
arcmsr_stop_adapter_bgrb(acb);
arcmsr_flush_adapter_cache(acb);
Expand Down Expand Up @@ -1464,6 +1486,8 @@ static void arcmsr_shutdown(struct pci_dev *pdev)
struct AdapterControlBlock *acb =
(struct AdapterControlBlock *)host->hostdata;
del_timer_sync(&acb->eternal_timer);
if (set_date_time)
del_timer_sync(&acb->refresh_timer);
arcmsr_disable_outbound_ints(acb);
arcmsr_free_irq(pdev, acb);
flush_work(&acb->arcmsr_do_message_isr_bh);
Expand Down Expand Up @@ -3614,6 +3638,109 @@ static int arcmsr_polling_ccbdone(struct AdapterControlBlock *acb,
return rtn;
}

static void arcmsr_set_iop_datetime(struct timer_list *t)
{
struct AdapterControlBlock *pacb = from_timer(pacb, t, refresh_timer);
unsigned int days, j, i, a, b, c, d, e, m, year, mon, day, hour, min, sec, secs, next_time;
struct timeval tv;
union {
struct {
uint16_t signature;
uint8_t year;
uint8_t month;
uint8_t date;
uint8_t hour;
uint8_t minute;
uint8_t second;
} a;
struct {
uint32_t msg_time[2];
} b;
} datetime;

do_gettimeofday(&tv);
secs = (u32)(tv.tv_sec - (sys_tz.tz_minuteswest * 60));
days = secs / 86400;
secs = secs - 86400 * days;
if (secs < 0) {
days = days - 1;
secs = secs + 86400;
}
j = days / 146097;
i = days - 146097 * j;
a = i + 719468;
b = ( 4 * a + 3 ) / 146097;
c = a - ( 146097 * b ) / 4;
d = ( 4 * c + 3 ) / 1461 ;
e = c - ( 1461 * d ) / 4 ;
m = ( 5 * e + 2 ) / 153 ;
year = 400 * j + 100 * b + d + m / 10 - 2000;
mon = m + 3 - 12 * ( m /10 );
day = e - ( 153 * m + 2 ) / 5 + 1;
hour = secs / 3600;
secs = secs - 3600 * hour;
min = secs / 60;
sec = secs - 60 * min;

datetime.a.signature = 0x55AA;
datetime.a.year = year;
datetime.a.month = mon;
datetime.a.date = day;
datetime.a.hour = hour;
datetime.a.minute = min;
datetime.a.second = sec;

switch (pacb->adapter_type) {
case ACB_ADAPTER_TYPE_A: {
struct MessageUnit_A __iomem *reg = pacb->pmuA;
writel(datetime.b.msg_time[0], &reg->message_rwbuffer[0]);
writel(datetime.b.msg_time[1], &reg->message_rwbuffer[1]);
writel(ARCMSR_INBOUND_MESG0_SYNC_TIMER, &reg->inbound_msgaddr0);
break;
}
case ACB_ADAPTER_TYPE_B: {
uint32_t __iomem *rwbuffer;
struct MessageUnit_B *reg = pacb->pmuB;
rwbuffer = reg->message_rwbuffer;
writel(datetime.b.msg_time[0], rwbuffer++);
writel(datetime.b.msg_time[1], rwbuffer++);
writel(ARCMSR_MESSAGE_SYNC_TIMER, reg->drv2iop_doorbell);
break;
}
case ACB_ADAPTER_TYPE_C: {
struct MessageUnit_C __iomem *reg = pacb->pmuC;
writel(datetime.b.msg_time[0], &reg->msgcode_rwbuffer[0]);
writel(datetime.b.msg_time[1], &reg->msgcode_rwbuffer[1]);
writel(ARCMSR_INBOUND_MESG0_SYNC_TIMER, &reg->inbound_msgaddr0);
writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, &reg->inbound_doorbell);
break;
}
case ACB_ADAPTER_TYPE_D: {
uint32_t __iomem *rwbuffer;
struct MessageUnit_D *reg = pacb->pmuD;
rwbuffer = reg->msgcode_rwbuffer;
writel(datetime.b.msg_time[0], rwbuffer++);
writel(datetime.b.msg_time[1], rwbuffer++);
writel(ARCMSR_INBOUND_MESG0_SYNC_TIMER, reg->inbound_msgaddr0);
break;
}
case ACB_ADAPTER_TYPE_E: {
struct MessageUnit_E __iomem *reg = pacb->pmuE;
writel(datetime.b.msg_time[0], &reg->msgcode_rwbuffer[0]);
writel(datetime.b.msg_time[1], &reg->msgcode_rwbuffer[1]);
writel(ARCMSR_INBOUND_MESG0_SYNC_TIMER, &reg->inbound_msgaddr0);
pacb->out_doorbell ^= ARCMSR_HBEMU_DRV2IOP_MESSAGE_CMD_DONE;
writel(pacb->out_doorbell, &reg->iobound_doorbell);
break;
}
}
if (sys_tz.tz_minuteswest)
next_time = ARCMSR_HOURS;
else
next_time = ARCMSR_MINUTES;
mod_timer(&pacb->refresh_timer, jiffies + msecs_to_jiffies(next_time));
}

static int arcmsr_iop_confirm(struct AdapterControlBlock *acb)
{
uint32_t cdb_phyaddr, cdb_phyaddr_hi32;
Expand Down

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