A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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libata-scsi: set CmdQue bit in standard INQUIRY data to 1

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Avoid performance bottleneck when being SCSI pass-through'd to
virtual machines with other OSes (e.g. Windows) via virtio-scsi
and scsi-block in qemu.

Ref.: https://github.com/YanVugenfirer/kvm-guest-drivers-windows/issues/63

Signed-off-by: Tom Yan <[email protected]>
Signed-off-by: Tejun Heo <[email protected]>
This commit is contained in:
Tom Yan 2016-07-12 21:29:34 +08:00 • committed by Tejun Heo
commit 415ffdde15
1 changed files with 4 additions and 1 deletions
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5
drivers/ata/libata-scsi.c
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@ -2097,7 +2097,10 @@ static unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf)
0,
0x5, /* claim SPC-3 version compatibility */
2,
95 - 4
95 - 4,
0,
0,
2
};
VPRINTK("ENTER\n");