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SubjectRe: [PATCH 02/14] target: Add DIF CHECK_CONDITION ASC/ASCQ exception cases
On 1/14/2014 10:53 AM, Nicholas A. Bellinger wrote:
> On Tue, 2014-01-14 at 09:44 +0200, Sagi Grimberg wrote:
>> On 1/10/2014 8:53 AM, Nicholas A. Bellinger wrote:
>>> On Thu, 2014-01-09 at 12:43 +0200, Sagi Grimberg wrote:
>>>> On 1/8/2014 10:36 PM, Nicholas A. Bellinger wrote:
>>>>> From: Nicholas Bellinger <nab@linux-iscsi.org>
>>>>>
>>>>> This patch adds support for DIF related CHECK_CONDITION ASC/ASCQ
>>>>> exception cases into transport_send_check_condition_and_sense().
>>>>>
>>>>> This includes:
>>>>>
>>>>> LOGICAL BLOCK GUARD CHECK FAILED
>>>>> LOGICAL BLOCK APPLICATION TAG CHECK FAILED
>>>>> LOGICAL BLOCK REFERENCE TAG CHECK FAILED
>>>>>
>>>>> that used by DIF TYPE1 and TYPE3 failure cases.
>>>>>
>>>>> Cc: Martin K. Petersen <martin.petersen@oracle.com>
>>>>> Cc: Christoph Hellwig <hch@lst.de>
>>>>> Cc: Hannes Reinecke <hare@suse.de>
>>>>> Cc: Sagi Grimberg <sagig@mellanox.com>
>>>>> Cc: Or Gerlitz <ogerlitz@mellanox.com>
>>>>> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
>>>>> ---
>>>>> drivers/target/target_core_transport.c | 30 ++++++++++++++++++++++++++++++
>>>>> include/target/target_core_base.h | 3 +++
>>>>> 2 files changed, 33 insertions(+)
>>>>>
>>>>> diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
>>>>> index 91953da..707ee17 100644
>>>>> --- a/drivers/target/target_core_transport.c
>>>>> +++ b/drivers/target/target_core_transport.c
>>>>> @@ -2648,6 +2648,36 @@ transport_send_check_condition_and_sense(struct se_cmd *cmd,
>>>>> buffer[SPC_ASC_KEY_OFFSET] = 0x1d;
>>>>> buffer[SPC_ASCQ_KEY_OFFSET] = 0x00;
>>>>> break;
>>>>> + case TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED:
>>>>> + /* CURRENT ERROR */
>>>>> + buffer[0] = 0x70;
>>>>> + buffer[SPC_ADD_SENSE_LEN_OFFSET] = 10;
>>>>> + /* ILLEGAL REQUEST */
>>>>> + buffer[SPC_SENSE_KEY_OFFSET] = ILLEGAL_REQUEST;
>>>>> + /* LOGICAL BLOCK GUARD CHECK FAILED */
>>>>> + buffer[SPC_ASC_KEY_OFFSET] = 0x10;
>>>>> + buffer[SPC_ASCQ_KEY_OFFSET] = 0x01;
>> Hey Nic,
>>
>> In my iSER patches I constructed the same sense buffer (call
>> isert_pi_err_sense_buffer) and called isert_put_rsponse. So I should
>> call this routine instead correct?
> Yes, it should be OK to use this for generating CHECK_CONDITION from
> fabric protection failures in isert_completion_rdma_write() code after
> device->unreg_rdma_mem() has been called.
>
> --nab
>

Will do that.


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