Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 06f12f22 authored by Anand Kumar Santhanam's avatar Anand Kumar Santhanam Committed by James Bottomley
Browse files

[SCSI] pm80xx: IButton security feature support for motherboard controllers. 



Signed-off-by: default avatar <Anandkumar.Santhanam@pmcs.com>
Reviewed-by: default avatarJack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: default avatarJames Bottomley <JBottomley@Parallels.com>
parent cb269c26

drivers/scsi/pm8001/pm80xx_hwi.c

+22 −1
Original line number Original line Diff line number Diff line
@@ -967,6 +967,7 @@ pm80xx_chip_soft_rst(struct pm8001_hba_info *pm8001_ha) 
{

{

	u32 regval;

	u32 regval;

	u32 bootloader_state;

	u32 bootloader_state;

	u32 ibutton0, ibutton1;





	/* Check if MPI is in ready state to reset */

	/* Check if MPI is in ready state to reset */

	if (mpi_uninit_check(pm8001_ha) != 0) {

	if (mpi_uninit_check(pm8001_ha) != 0) {
@@ -1025,8 +1026,28 @@ pm80xx_chip_soft_rst(struct pm8001_hba_info *pm8001_ha) 
	if (-1 == check_fw_ready(pm8001_ha)) {

	if (-1 == check_fw_ready(pm8001_ha)) {

		PM8001_FAIL_DBG(pm8001_ha,

		PM8001_FAIL_DBG(pm8001_ha,

			pm8001_printk("Firmware is not ready!\n"));

			pm8001_printk("Firmware is not ready!\n"));

		/* check iButton feature support for motherboard controller */

		if (pm8001_ha->pdev->subsystem_vendor !=

			PCI_VENDOR_ID_ADAPTEC2 &&

			pm8001_ha->pdev->subsystem_vendor != 0) {

			ibutton0 = pm8001_cr32(pm8001_ha, 0,

					MSGU_HOST_SCRATCH_PAD_6);

			ibutton1 = pm8001_cr32(pm8001_ha, 0,

					MSGU_HOST_SCRATCH_PAD_7);

			if (!ibutton0 && !ibutton1) {

				PM8001_FAIL_DBG(pm8001_ha,

					pm8001_printk("iButton Feature is"

					" not Available!!!\n"));

				return -EBUSY;

			}

			if (ibutton0 == 0xdeadbeef && ibutton1 == 0xdeadbeef) {

				PM8001_FAIL_DBG(pm8001_ha,

					pm8001_printk("CRC Check for iButton"

					" Feature Failed!!!\n"));

				return -EBUSY;

				return -EBUSY;

			}

			}

		}

	}

	PM8001_INIT_DBG(pm8001_ha,

	PM8001_INIT_DBG(pm8001_ha,

		pm8001_printk("SPCv soft reset Complete\n"));

		pm8001_printk("SPCv soft reset Complete\n"));

	return 0;

	return 0;