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authorGreg Edwards <gedwards@ddn.com>2018-08-08 22:29:55 +0300
committerMichael S. Tsirkin <mst@redhat.com>2018-08-22 01:01:47 +0300
commit864d39df09b43f9d09d80bc29d8e8888294b3c4b (patch)
treee7f626151455b71fcbfe57be20a9f3de50fcf65d /drivers
parent84f3396b718dfac59a5fe328aea34bac93f2fc9c (diff)
downloadlinux-864d39df09b43f9d09d80bc29d8e8888294b3c4b.tar.xz
vhost/scsi: increase VHOST_SCSI_PREALLOC_PROT_SGLS to 2048
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@ddn.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/vhost/scsi.c2
1 files changed, 1 insertions, 1 deletions
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 */