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| author | Greg Edwards <gedwards@ddn.com> | 2018-08-08 13:29:55 -0600 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2018-08-22 01:01:47 +0300 |
| commit | 864d39df09b43f9d09d80bc29d8e8888294b3c4b (patch) | |
| tree | e7f626151455b71fcbfe57be20a9f3de50fcf65d /drivers/vhost | |
| parent | 84f3396b718dfac59a5fe328aea34bac93f2fc9c (diff) | |
| download | lwn-864d39df09b43f9d09d80bc29d8e8888294b3c4b.tar.gz lwn-864d39df09b43f9d09d80bc29d8e8888294b3c4b.zip | |
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/vhost')
| -rw-r--r-- | drivers/vhost/scsi.c | 2 |
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 */ |