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Lines 892-906
iscsi_pdu_handle_scsi_response(struct icl_pdu *response)
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| 892 |
} |
892 |
} |
| 893 |
|
893 |
|
| 894 |
ccb = io->io_ccb; |
894 |
ccb = io->io_ccb; |
| 895 |
if (ntohl(bhssr->bhssr_expdatasn) != io->io_datasn) { |
895 |
if (bhssr->response == BHSSR_RESPONSE_COMMAND_COMPLETED) { |
| 896 |
ISCSI_SESSION_WARN(is, |
896 |
if (ntohl(bhssr->bhssr_expdatasn) != io->io_datasn) { |
| 897 |
"ExpDataSN mismatch in SCSI Response (%u vs %u)", |
897 |
ISCSI_SESSION_WARN(is, |
| 898 |
ntohl(bhssr->bhssr_expdatasn), io->io_datasn); |
898 |
"ExpDataSN mismatch in SCSI Response (%u vs %u)", |
| 899 |
icl_pdu_free(response); |
899 |
ntohl(bhssr->bhssr_expdatasn), io->io_datasn); |
| 900 |
iscsi_session_reconnect(is); |
900 |
|
| 901 |
ISCSI_SESSION_UNLOCK(is); |
901 |
/* |
| 902 |
return; |
902 |
* XXX: Permit an ExpDataSN of zero for errors. |
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|
903 |
* |
| 904 |
* This doesn't conform to RFC 7143, but some |
| 905 |
* targets seem to do this. |
| 906 |
*/ |
| 907 |
if (bhssr->bhssr_status != 0 && |
| 908 |
bhssr->bhssr_expdatasn == htonl(0)) |
| 909 |
goto skip_expdatasn; |
| 910 |
|
| 911 |
icl_pdu_free(response); |
| 912 |
iscsi_session_reconnect(is); |
| 913 |
ISCSI_SESSION_UNLOCK(is); |
| 914 |
return; |
| 915 |
} |
| 916 |
} else { |
| 917 |
if (bhssr->bhssr_expdatasn != htonl(0)) { |
| 918 |
ISCSI_SESSION_WARN(is, |
| 919 |
"ExpDataSN mismatch in SCSI Response (%u vs 0)", |
| 920 |
ntohl(bhssr->bhssr_expdatasn)); |
| 921 |
icl_pdu_free(response); |
| 922 |
iscsi_session_reconnect(is); |
| 923 |
ISCSI_SESSION_UNLOCK(is); |
| 924 |
return; |
| 925 |
} |
| 903 |
} |
926 |
} |
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|
927 |
skip_expdatasn: |
| 904 |
|
928 |
|
| 905 |
/* |
929 |
/* |
| 906 |
* With iSER, after getting good response we can be sure |
930 |
* With iSER, after getting good response we can be sure |