scsi: arcmsr: Add a function to set date and time to firmware

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>

diff --git a/drivers/scsi/arcmsr/arcmsr.h b/drivers/scsi/arcmsr/arcmsr.h
index 1cde98f0c52b3470b9e5f8e3473173a97fe72e9b..d93a3779dd18b2d0ae6652381ca6aa3f3845d151 100644 (file)
--- a/drivers/scsi/arcmsr/arcmsr.h
+++ b/drivers/scsi/arcmsr/arcmsr.h
@@ -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)
 /*
 **********************************************************************************
 **
@@ -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
@@ -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;

diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index 750d1e9af0c6d34d6278e0015f0b330473da9625..716ecec0df5ad38a2176658bd36bccf30228df18 100644 (file)
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -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
 
@@ -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)
@@ -852,6 +857,13 @@ out_free_irq:
        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;
@@ -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);
@@ -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);
@@ -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);
@@ -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);        
@@ -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);
@@ -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;