search for: vhost_scsi_calc_sgls

On Wed, Aug 22, 2018 at 01:21:53PM -0600, Greg Edwards wrote: > Commands with protection information included were not truncating the > protection iov_iter to the number of protection bytes in the command. > This resulted in vhost_scsi mis-calculating the size of the protection > SGL in vhost_scsi_calc_sgls(), and including both the protection and > data SG entries in the protection SGL. > > Fixes: 09b13fa8c1a1 ("vhost/scsi: Add ANY_LAYOUT support in vhost_scsi_handle_vq") > Signed-off-by: Greg Edwards <gedwards at ddn.com> Any thoughts on this patch? > --- > dri...

The following patches were made over Linus's tree and fix an issue where windows guests will send iovecs with offset/lengths that result in IOs that are not aligned to 512. The LIO layer will then send them to Linux's block layer but it requires 512 byte alignment, so depending on the block driver being used we will get IO errors or hung IO. The following patches have vhost-scsi detect

The following patches were made over Linus's tree and fix an issue where windows guests will send iovecs with offset/lengths that result in IOs that are not aligned to 512. The LIO layer will then send them to Linux's FS/block layer but it requires 512 byte alignment, so depending on the FS/block driver being used we will get IO errors or hung IO. The following patches have vhost-scsi

...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 <gedwards at ddn.com> > --- > drivers/vhost/scsi.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c > i...