Linux SCSI subsystem development
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From: sashiko-bot@kernel.org
To: "Dave Marquardt" <davemarq@linux.ibm.com>
Cc: linux-scsi@vger.kernel.org
Subject: Re: [PATCH v4 3/8] ibmvfc: make ibmvfc login to fabric
Date: Fri, 10 Jul 2026 19:30:09 +0000	[thread overview]
Message-ID: <20260710193009.CCFBC1F000E9@smtp.kernel.org> (raw)
In-Reply-To: <20260710-ibmvfc-fpin-support-v4-3-ef031ac19520@linux.ibm.com>

Thank you for your contribution! Sashiko AI review found 1 potential issue(s) to consider:
- [Medium] The newly introduced IBMVFC_YES_SCSI capability flag is defined but never added to the client's login capabilities payload, preventing the client from advertising SCSI fabric login support to the VIOS.
--

--- Patch [3]: [PATCH v4 3/8] ibmvfc: make ibmvfc login to fabric ---
commit 1b5a2938bf5a0e21e24c77be11449d47426c29c4
Author: Dave Marquardt <davemarq@linux.ibm.com>

ibmvfc: make ibmvfc login to fabric
    
Add fabric login capability to support asynchronous event queue with
dedicated interrupt as required by NPIV specification for async sub-queue
and full/extended FPIN message support.

[ ... ]

> diff --git a/drivers/scsi/ibmvscsi/ibmvfc.h b/drivers/scsi/ibmvscsi/ibmvfc.h
> index 526632cb72377..adfd67e85af86 100644
> --- a/drivers/scsi/ibmvscsi/ibmvfc.h
> +++ b/drivers/scsi/ibmvscsi/ibmvfc.h
> @@ -180,6 +181,7 @@ struct ibmvfc_npiv_login {
>  #define IBMVFC_CAN_HANDLE_FPIN		0x004
>  #define IBMVFC_CAN_USE_MAD_VERSION	0x008
>  #define IBMVFC_CAN_SEND_VF_WWPN		0x010
> +#define IBMVFC_YES_SCSI			0x040

[Severity: Medium]
Will the new fabric login functionality be reachable?

The IBMVFC_YES_SCSI flag is defined here, but it doesn't appear to be added
to the login capabilities payload in ibmvfc_set_login_info():

	login_info->capabilities =
		cpu_to_be64(IBMVFC_CAN_MIGRATE | IBMVFC_CAN_SEND_VF_WWPN |
			    IBMVFC_CAN_USE_NOOP_CMD);

Without advertising this capability to the VIOS, will the VIOS ever return
the IBMVFC_SUPPORT_SCSI flag, or will the host always fall back to the
legacy initialization path?

>  #define IBMVFC_CAN_USE_NOOP_CMD		0x200
>  	__be64 node_name;

-- 
Sashiko AI review · https://sashiko.dev/#/patchset/20260710-ibmvfc-fpin-support-v4-0-ef031ac19520@linux.ibm.com?part=3

  reply	other threads:[~2026-07-10 19:30 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-10 19:16 [PATCH v4 0/8] ibmvfc: make ibmvfc support FPIN messages Dave Marquardt via B4 Relay
2026-07-10 19:16 ` [PATCH v4 1/8] ibmvfc: add basic FPIN support Dave Marquardt via B4 Relay
2026-07-10 19:31   ` sashiko-bot
2026-07-10 19:16 ` [PATCH v4 2/8] ibmvfc: Add NOOP command support Dave Marquardt via B4 Relay
2026-07-10 19:31   ` sashiko-bot
2026-07-10 19:16 ` [PATCH v4 3/8] ibmvfc: make ibmvfc login to fabric Dave Marquardt via B4 Relay
2026-07-10 19:30   ` sashiko-bot [this message]
2026-07-10 19:16 ` [PATCH v4 4/8] ibmvfc: define asynchronous sub-queue Dave Marquardt via B4 Relay
2026-07-10 19:40   ` sashiko-bot
2026-07-10 19:16 ` [PATCH v4 5/8] ibmvfc: allocate " Dave Marquardt via B4 Relay
2026-07-10 19:36   ` sashiko-bot
2026-07-10 19:16 ` [PATCH v4 6/8] ibmvfc: extend async event handlers to handle async sub queue events Dave Marquardt via B4 Relay
2026-07-10 19:37   ` sashiko-bot
2026-07-10 19:16 ` [PATCH v4 7/8] ibmvfc: register and use asynchronous sub-queue for events Dave Marquardt via B4 Relay
2026-07-10 19:32   ` sashiko-bot
2026-07-10 19:16 ` [PATCH v4 8/8] ibmvfc: handle extended FPIN events Dave Marquardt via B4 Relay
2026-07-10 19:40   ` sashiko-bot

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