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mtd: virt_mtd: add sysfs nodes

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Add mechanism to read manufacture_id,
device_id size and ecc_info through guest vm
add the sysfs nodes to achieve this.

JIRA SSV-12115

Signed-off-by: Vishwaroop A <va@nvidia.com>
Change-Id: Ib9311c2da8c4f5ccf1efcc7aeb16026bc5159c0c
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3183733
(cherry picked from commit 402b93d8537cc51b56288de1dee729b30b663368)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3198295
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
This commit is contained in:
Vishwaroop A
2024-07-29 06:28:12 +00:00
committed by Jon Hunter
parent 976ca5efb1
commit ba503dd9aa
2 changed files with 156 additions and 0 deletions
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69
include/tegra_virt_storage_spec.h
View File

@@ -28,10 +28,52 @@ enum mtd_cmd_op {
VS_MTD_WRITE = 2,
VS_MTD_ERASE = 3,
VS_MTD_IOCTL = 4,
VS_MTD_ECC = 5,
VS_MTD_INVAL_REQ = 32,
VS_UNKNOWN_MTD_CMD = 0xffffffff,
};
typedef enum {
/**
* @brief no error detected for ECC 0x800 register.
*/
ECC_NO_ERROR = 0,
/**
* @brief one bit error corrected for ECC 0x800 register.
*/
ECC_ONE_BIT_CORRECTED = 1,
/**
* @brief two bit error detected for ECC 0x800 register.
*/
ECC_TWO_BIT_ERROR = 2,
/**
* @brief ECC is disabled 0x800 register.
*/
ECC_DISABLED = 3,
} qspi_ecc_err;
/**
* @brief QSPI ecc status
* A structure contains information related to ecc
* read values
*/
typedef struct NvQspi_ecc_status {
/**
* @brief read ECC error status.
*/
qspi_ecc_err status;
/**
* @brief if 1 or 2 bit error, this will
* hold valid failed chunk address.
*/
uint32_t failed_chunk_addr;
} NvQspi_ecc_status;
/* MTD device request Operation type features supported */
#define VS_MTD_READ_OP_F (1 << VS_MTD_READ)
#define VS_MTD_WRITE_OP_F (1 << VS_MTD_WRITE)
@@ -118,6 +160,9 @@ struct vs_mtddev_request {
struct vs_mtd_request mtd_req;
struct vs_ioctl_request ioctl_req;
};
uint32_t stored_ecc_status; /* Field to store ECC status */
uint32_t stored_failed_chunk_addr; /* field to store failed chunk address */
};
struct vs_blk_response {
@@ -142,10 +187,30 @@ struct vs_blkdev_response {
};
};
struct vs_mtd_ecc_response {
/** Status code returned as part of response message of MTD requests.
* Status code value is "0" for success and "< 0" for failure
* This value of this member is ignored in the MTD request message.
*/
int32_t status;
/**
* Read ECC error status.
*/
uint32_t ecc_status;
/**
* If 1 or 2 bit error, this will
* hold valid failed chunk address.
*/
uint32_t failed_chunk_addr;
};
struct vs_mtddev_response {
union {
struct vs_mtd_response mtd_resp;
struct vs_ioctl_response ioctl_resp;
struct vs_mtd_ecc_response ecc_resp;
};
};
@@ -176,6 +241,9 @@ struct vs_mtd_dev_config {
device*/
uint32_t req_ops_supported; /* Allowed operations by requests */
uint64_t size; /* Total number of bytes */
uint32_t manufacturer_id;
uint32_t device_id;
uint32_t qspi_device_size_bytes;
};
/* Physical device types */
@@ -209,6 +277,7 @@ struct vs_config_info {
uint32_t storage_type;
uint32_t priority;
uint8_t speed_mode[SPEED_MODE_MAX_LEN];
};
struct vs_request {