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scsi: aacraid: Added ioctl to trigger IOP/IWBR reset

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Added a new ioctl interface to trigger an IOP or IWBR reset from ioctl.
Primary used by management utility to trigger resets.

Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Dave Carroll <David.Carroll@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Raghava Aditya Renukunta 2017-02-02 15:53:34 -08:00 committed by Martin K. Petersen
parent 3136432956
commit 09867a0e34
2 changed files with 20 additions and 0 deletions
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1
drivers/scsi/aacraid/aacraid.h
View File

@ -2333,6 +2333,7 @@ struct revision
#define FSACTL_FORCE_DELETE_DISK CTL_CODE(2120, METHOD_NEITHER)
#define FSACTL_GET_CONTAINERS 2131
#define FSACTL_SEND_LARGE_FIB CTL_CODE(2138, METHOD_BUFFERED)
#define FSACTL_RESET_IOP CTL_CODE(2140, METHOD_BUFFERED)
/* flags defined for IOP & HW SOFT RESET */
#define HW_IOP_RESET 0x01
#define HW_SOFT_RESET 0x02

19
drivers/scsi/aacraid/commctrl.c
View File

@ -1011,7 +1011,22 @@ static int aac_get_pci_info(struct aac_dev* dev, void __user *arg)
}
return 0;
}
struct aac_reset_iop {
u8 reset_type;
};
static int aac_send_reset_adapter(struct aac_dev *dev, void __user *arg)
{
struct aac_reset_iop reset;
int retval;
if (copy_from_user((void *)&reset, arg, sizeof(struct aac_reset_iop)))
return -EFAULT;
retval = aac_reset_adapter(dev, 0, reset.reset_type);
return retval;
}
int aac_do_ioctl(struct aac_dev * dev, int cmd, void __user *arg)
{
@ -1055,6 +1070,10 @@ int aac_do_ioctl(struct aac_dev * dev, int cmd, void __user *arg)
case FSACTL_GET_PCI_INFO:
status = aac_get_pci_info(dev,arg);
break;
case FSACTL_RESET_IOP:
status = aac_send_reset_adapter(dev, arg);
break;
default:
status = -ENOTTY;
break;