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From: Lin Ma <LMa@suse.com>
To: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>
Cc: "pbonzini@redhat.com" <pbonzini@redhat.com>,
	"hare@suse.de" <hare@suse.de>
Subject: [Question] About GET LBA STATUS(16) support in qemu scsi emulation layer
Date: Sun, 1 Mar 2020 13:01:29 +0000	[thread overview]
Message-ID: <BY5PR18MB33131C4403EEE72D5DD0FA91C5E60@BY5PR18MB3313.namprd18.prod.outlook.com> (raw)

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Hi all,

I'm not familiar with scsi, I'm curious why there is no GET LBA STATUS(16) support in qemu scsi emulation layer.

So far, There is only one subcommand of SERVICE ACTION was implemented: The READ CAPACITY(16)
e.g.
static int32_t scsi_disk_emulate_command(SCSIRequest *req, uint8_t *buf)
    [......]
    case SERVICE_ACTION_IN_16:
        /* Service Action In subcommands. */
        if ((req->cmd.buf[1] & 31) == SAI_READ_CAPACITY_16) {
            [......]
        }
        trace_scsi_disk_emulate_command_SAI_unsupported();
        goto illegal_request;
    [......]


It seems that this situation has been for a long time. Is the GET LBA STATUS (16 or 32) unnessesary for qemu scsi emulation or did I misunderstand something?

TIA,
Lin

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             reply	other threads:[~2020-03-01 13:03 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-01 13:01 Lin Ma [this message]
2020-03-06 13:01 ` [Question] About GET LBA STATUS(16) support in qemu scsi emulation layer Stefan Hajnoczi
2020-03-10  6:18 Lin Ma
2020-03-10  9:24 ` Stefan Hajnoczi
2020-03-10 13:51 Lin Ma

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