target: Report bad sector in sense data for DIF errors

[GitHub/exynos8895/android_kernel_samsung_universal8895.git] / drivers / target / target_core_transport.c

diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index aebe0bb3f23b82f8d76d803f12159ae14394ef86..51a9736be7269bb1d7f63a2ff20f42aec7eb9bd9 100644 (file)
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -2493,6 +2493,19 @@ static int transport_get_sense_codes(
        return 0;
 }
 
+static
+void transport_err_sector_info(unsigned char *buffer, sector_t bad_sector)
+{
+       /* Place failed LBA in sense data information descriptor 0. */
+       buffer[SPC_ADD_SENSE_LEN_OFFSET] = 0xc;
+       buffer[SPC_DESC_TYPE_OFFSET] = 0; /* Information */
+       buffer[SPC_ADDITIONAL_DESC_LEN_OFFSET] = 0xa;
+       buffer[SPC_VALIDITY_OFFSET] = 0x80;
+
+       /* Descriptor Information: failing sector */
+       put_unaligned_be64(bad_sector, &buffer[12]);
+}
+
 int
 transport_send_check_condition_and_sense(struct se_cmd *cmd,
                sense_reason_t reason, int from_transport)
@@ -2695,6 +2708,7 @@ transport_send_check_condition_and_sense(struct se_cmd *cmd,
                /* LOGICAL BLOCK GUARD CHECK FAILED */
                buffer[SPC_ASC_KEY_OFFSET] = 0x10;
                buffer[SPC_ASCQ_KEY_OFFSET] = 0x01;
+               transport_err_sector_info(buffer, cmd->bad_sector);
                break;
        case TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED:
                /* CURRENT ERROR */
@@ -2705,6 +2719,7 @@ transport_send_check_condition_and_sense(struct se_cmd *cmd,
                /* LOGICAL BLOCK APPLICATION TAG CHECK FAILED */
                buffer[SPC_ASC_KEY_OFFSET] = 0x10;
                buffer[SPC_ASCQ_KEY_OFFSET] = 0x02;
+               transport_err_sector_info(buffer, cmd->bad_sector);
                break;
        case TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED:
                /* CURRENT ERROR */
@@ -2715,6 +2730,7 @@ transport_send_check_condition_and_sense(struct se_cmd *cmd,
                /* LOGICAL BLOCK REFERENCE TAG CHECK FAILED */
                buffer[SPC_ASC_KEY_OFFSET] = 0x10;
                buffer[SPC_ASCQ_KEY_OFFSET] = 0x03;
+               transport_err_sector_info(buffer, cmd->bad_sector);
                break;
        case TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE:
        default: