On Wed, Aug 08, 2018 at 01:29:55PM -0600, Greg Edwards wrote: > The current value of VHOST_SCSI_PREALLOC_PROT_SGLS is too small to > accommodate larger I/Os, e.g. 16-32 MiB, when the VIRTIO_SCSI_F_T10_PI > feature bit is negotiated and the backing store supports T10 PI. > > vhost-scsi rejects the command with errors like: > > [ 59.581317] vhost_scsi_calc_sgls: requested sgl_count: 1820 exceeds > pre-allocated max_sgls: 512 > > Signed-off-by: Greg Edwards <[email protected]> > --- > drivers/vhost/scsi.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c > index 17fcd3b2e686..8c32cf58d6fa 100644 > --- a/drivers/vhost/scsi.c > +++ b/drivers/vhost/scsi.c > @@ -56,7 +56,7 @@ > #define VHOST_SCSI_DEFAULT_TAGS 256 > #define VHOST_SCSI_PREALLOC_SGLS 2048 > #define VHOST_SCSI_PREALLOC_UPAGES 2048 > -#define VHOST_SCSI_PREALLOC_PROT_SGLS 512 > +#define VHOST_SCSI_PREALLOC_PROT_SGLS 2048 > > struct vhost_scsi_inflight { > /* Wait for the flush operation to finish */
I guess it's ok since PREALLOC_SGLS is already 2K ... or am I missing something. Paolo, any input on this? > -- > 2.17.1 _______________________________________________ Virtualization mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/virtualization
