linux-kernel - Re: [PATCH] scsi: fnic: Replace DMA mask of 64 bits with 47 bits

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Message-ID: <yq18rqzoczo.fsf@ca-mkp.ca.oracle.com>
Date:   Tue, 17 May 2022 21:17:56 -0400
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Karan Tilak Kumar <kartilak@...co.com>
Cc:     sebaddel@...co.com, arulponn@...co.com, djhawar@...co.com,
        gcboffa@...co.com, satishkh@...co.com, gvaradar@...co.com,
        jejb@...ux.ibm.com, martin.petersen@...cle.com,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] scsi: fnic: Replace DMA mask of 64 bits with 47 bits


Karan,

> Cisco VIC supports only 47 bits.  If the host sends DMA addresses that
> are greater than 47 bits, it causes work queue (WQ) errors in the VIC.

Applied to 5.19/scsi-staging, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering