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From: Hannes Reinecke <hare@suse.de>
To: Sagi Grimberg <sagi@grimberg.me>, Christoph Hellwig <hch@lst.de>
Cc: Keith Busch <keith.busch@wdc.com>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	"David S . Miller" <davem@davemloft.net>,
	linux-nvme@lists.infradead.org, linux-crypto@vger.kernel.org
Subject: Re: [PATCH 07/12] nvme: Implement In-Band authentication
Date: Mon, 27 Sep 2021 09:26:26 +0200	[thread overview]
Message-ID: <e8e4a164-5803-5110-ab48-751def26b976@suse.de> (raw)
In-Reply-To: <22a5f9bf-5fbc-a0d3-b188-c67706a77600@grimberg.me>

On 9/27/21 12:04 AM, Sagi Grimberg wrote:
> 
>> +/* Assumes that the controller is in state RESETTING */
>> +static void nvme_dhchap_auth_work(struct work_struct *work)
>> +{
>> +    struct nvme_ctrl *ctrl =
>> +        container_of(work, struct nvme_ctrl, dhchap_auth_work);
>> +    int ret, q;
>> +
>> +    nvme_stop_queues(ctrl);
> 
>      blk_mq_quiesce_queue(ctrl->admin_q);
> 
>> +    /* Authenticate admin queue first */
>> +    ret = nvme_auth_negotiate(ctrl, NVME_QID_ANY);
>> +    if (ret) {
>> +        dev_warn(ctrl->device,
>> +             "qid 0: error %d setting up authentication\n", ret);
>> +        goto out;
>> +    }
>> +    ret = nvme_auth_wait(ctrl, NVME_QID_ANY);
>> +    if (ret) {
>> +        dev_warn(ctrl->device,
>> +             "qid 0: authentication failed\n");
>> +        goto out;
>> +    }
>> +    dev_info(ctrl->device, "qid 0: authenticated\n");
>> +
>> +    for (q = 1; q < ctrl->queue_count; q++) {
>> +        ret = nvme_auth_negotiate(ctrl, q);
>> +        if (ret) {
>> +            dev_warn(ctrl->device,
>> +                 "qid %d: error %d setting up authentication\n",
>> +                 q, ret);
>> +            goto out;
>> +        }
>> +    }
>> +out:
>> +    /*
>> +     * Failure is a soft-state; credentials remain valid until
>> +     * the controller terminates the connection.
>> +     */
>> +    if (nvme_change_ctrl_state(ctrl, NVME_CTRL_LIVE))
>> +        nvme_start_queues(ctrl);
>          blk_mq_unquiesce_queue(ctrl->admin_q);
> 
>> +}

Actually, after recent discussions on the fmds group there shouldn't be 
a requirement to stop the queues, so I'll be dropping the stop/start 
queue things.
(And the change in controller state, too, as it isn't required, either).

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                Kernel Storage Architect
hare@suse.de                              +49 911 74053 688
SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg
HRB 36809 (AG Nürnberg), Geschäftsführer: Felix Imendörffer

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  reply	other threads:[~2021-09-27  7:27 UTC|newest]

Thread overview: 63+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-10  6:43 [PATCHv3 00/12] nvme: In-band authentication support Hannes Reinecke
2021-09-10  6:43 ` [PATCH 01/12] crypto: add crypto_has_shash() Hannes Reinecke
2021-09-13 13:15   ` Sagi Grimberg
2021-09-16 17:01   ` Chaitanya Kulkarni
2021-09-10  6:43 ` [PATCH 02/12] crypto: add crypto_has_kpp() Hannes Reinecke
2021-09-13 13:16   ` Sagi Grimberg
2021-09-16 17:02   ` Chaitanya Kulkarni
2021-09-10  6:43 ` [PATCH 03/12] crypto/ffdhe: Finite Field DH Ephemeral Parameters Hannes Reinecke
2021-09-10  6:43 ` [PATCH 04/12] lib/base64: RFC4648-compliant base64 encoding Hannes Reinecke
2021-09-10  6:43 ` [PATCH 05/12] nvme: add definitions for NVMe In-Band authentication Hannes Reinecke
2021-09-13 13:18   ` Sagi Grimberg
2021-09-16 17:04   ` Chaitanya Kulkarni
2021-09-17  5:39     ` Hannes Reinecke
2021-09-10  6:43 ` [PATCH 06/12] nvme-fabrics: decode 'authentication required' connect error Hannes Reinecke
2021-09-13 13:18   ` Sagi Grimberg
2021-09-16 17:04   ` Chaitanya Kulkarni
2021-09-10  6:43 ` [PATCH 07/12] nvme: Implement In-Band authentication Hannes Reinecke
2021-09-13 13:55   ` Sagi Grimberg
2021-09-13 14:33     ` Hannes Reinecke
2021-09-14  7:06       ` Sagi Grimberg
2021-09-14  7:19         ` Hannes Reinecke
2021-09-16 17:23   ` Chaitanya Kulkarni
2021-09-26 22:04   ` Sagi Grimberg
2021-09-27  7:26     ` Hannes Reinecke [this message]
2021-09-27  7:52       ` Sagi Grimberg
2021-09-26 22:53   ` Sagi Grimberg
2021-09-27  5:48     ` Hannes Reinecke
2021-09-27  7:52       ` Sagi Grimberg
2021-09-10  6:43 ` [PATCH 08/12] nvme-auth: Diffie-Hellman key exchange support Hannes Reinecke
2021-09-10  6:43 ` [PATCH 09/12] nvmet: Parse fabrics commands on all queues Hannes Reinecke
2021-09-13 13:56   ` Sagi Grimberg
2021-09-10  6:43 ` [PATCH 10/12] nvmet: Implement basic In-Band Authentication Hannes Reinecke
2021-09-26 14:30   ` Sagi Grimberg
2021-09-26 22:51   ` Sagi Grimberg
2021-09-27  6:40     ` Hannes Reinecke
2021-09-27  7:17       ` Hannes Reinecke
2021-09-27  7:55         ` Sagi Grimberg
2021-09-27  8:28           ` Hannes Reinecke
2021-09-28 22:36             ` Sagi Grimberg
2021-09-29  6:01               ` Hannes Reinecke
2021-09-10  6:43 ` [PATCH 11/12] nvmet-auth: Diffie-Hellman key exchange support Hannes Reinecke
2021-09-10  6:43 ` [PATCH 12/12] nvmet-auth: expire authentication sessions Hannes Reinecke
2021-09-13  9:16 ` [PATCHv3 00/12] nvme: In-band authentication support Sagi Grimberg
2021-09-13  9:43   ` Hannes Reinecke
2021-09-19 10:02     ` Sagi Grimberg
2021-09-28  6:03 [PATCHv4 " Hannes Reinecke
2021-09-28  6:03 ` [PATCH 07/12] nvme: Implement In-Band authentication Hannes Reinecke
2021-11-12 12:59 [PATCHv5 00/12] nvme: In-band authentication support Hannes Reinecke
2021-11-12 12:59 ` [PATCH 07/12] nvme: Implement In-Band authentication Hannes Reinecke
2021-11-16 10:25   ` Sagi Grimberg
2021-11-16 10:40     ` Hannes Reinecke
2021-11-16 10:35   ` Sagi Grimberg
2021-11-16 10:41     ` Hannes Reinecke
2021-11-22  7:47 [PATCHv6 00/12] nvme: In-band authentication support Hannes Reinecke
2021-11-22  7:47 ` [PATCH 07/12] nvme: Implement In-Band authentication Hannes Reinecke
2021-11-22  8:12   ` Sagi Grimberg
2021-11-22  9:15     ` Hannes Reinecke
2021-11-23  9:02   ` Chaitanya Kulkarni
2021-11-23 12:37 [PATCHv7 00/12] nvme: In-band authentication support Hannes Reinecke
2021-11-23 12:37 ` [PATCH 07/12] nvme: Implement In-Band authentication Hannes Reinecke
2021-11-23 13:11   ` Sagi Grimberg
2021-11-23 13:30     ` Hannes Reinecke
2021-12-02 15:23 [PATCHv8 00/12] nvme: In-band authentication support Hannes Reinecke
2021-12-02 15:23 ` [PATCH 07/12] nvme: Implement In-Band authentication Hannes Reinecke
2022-03-22 11:40   ` Max Gurtovoy
2022-03-22 12:10     ` Hannes Reinecke
2022-03-22 12:21       ` Max Gurtovoy
2022-03-22 12:44         ` Hannes Reinecke

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