Commit f6b9d0fe authored by Bean Huo's avatar Bean Huo Committed by Martin K. Petersen
Browse files

scsi: ufs: core: Advanced RPMB detection 



Check UFS Advanced RPMB LU enablement during ufshcd_lu_init().

Signed-off-by: default avatarBean Huo <beanhuo@micron.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 7a4df79d

drivers/ufs/core/ufshcd.c

+6 −0
Original line number Diff line number Diff line
@@ -4954,6 +4954,12 @@ static void ufshcd_lu_init(struct ufs_hba *hba, struct scsi_device *sdev) 
	    desc_buf[UNIT_DESC_PARAM_LU_WR_PROTECT] == UFS_LU_POWER_ON_WP)

		hba->dev_info.is_lu_power_on_wp = true;



	/* In case of RPMB LU, check if advanced RPMB mode is enabled */

	if (desc_buf[UNIT_DESC_PARAM_UNIT_INDEX] == UFS_UPIU_RPMB_WLUN &&

	    desc_buf[RPMB_UNIT_DESC_PARAM_REGION_EN] & BIT(4))

		hba->dev_info.b_advanced_rpmb_en = true;





	kfree(desc_buf);

set_qdepth:

	/*

include/ufs/ufs.h

+24 −0
Original line number Diff line number Diff line
@@ -212,6 +212,28 @@ enum unit_desc_param { 
	UNIT_DESC_PARAM_WB_BUF_ALLOC_UNITS	= 0x29,

};



/* RPMB Unit descriptor parameters offsets in bytes*/

enum rpmb_unit_desc_param {

	RPMB_UNIT_DESC_PARAM_LEN		= 0x0,

	RPMB_UNIT_DESC_PARAM_TYPE		= 0x1,

	RPMB_UNIT_DESC_PARAM_UNIT_INDEX		= 0x2,

	RPMB_UNIT_DESC_PARAM_LU_ENABLE		= 0x3,

	RPMB_UNIT_DESC_PARAM_BOOT_LUN_ID	= 0x4,

	RPMB_UNIT_DESC_PARAM_LU_WR_PROTECT	= 0x5,

	RPMB_UNIT_DESC_PARAM_LU_Q_DEPTH		= 0x6,

	RPMB_UNIT_DESC_PARAM_PSA_SENSITIVE	= 0x7,

	RPMB_UNIT_DESC_PARAM_MEM_TYPE		= 0x8,

	RPMB_UNIT_DESC_PARAM_REGION_EN		= 0x9,

	RPMB_UNIT_DESC_PARAM_LOGICAL_BLK_SIZE	= 0xA,

	RPMB_UNIT_DESC_PARAM_LOGICAL_BLK_COUNT	= 0xB,

	RPMB_UNIT_DESC_PARAM_REGION0_SIZE	= 0x13,

	RPMB_UNIT_DESC_PARAM_REGION1_SIZE	= 0x14,

	RPMB_UNIT_DESC_PARAM_REGION2_SIZE	= 0x15,

	RPMB_UNIT_DESC_PARAM_REGION3_SIZE	= 0x16,

	RPMB_UNIT_DESC_PARAM_PROVISIONING_TYPE	= 0x17,

	RPMB_UNIT_DESC_PARAM_PHY_MEM_RSRC_CNT	= 0x18,

};



/* Device descriptor parameters offsets in bytes*/

enum device_desc_param {

	DEVICE_DESC_PARAM_LEN			= 0x0,
@@ -601,6 +623,8 @@ struct ufs_dev_info { 


	bool	b_rpm_dev_flush_capable;

	u8	b_presrv_uspc_en;



	bool    b_advanced_rpmb_en;

};



/*