vdpa_sim_blk: use dev_dbg() to print errors

Use dev_dbg() instead of dev_err()/dev_warn() to avoid flooding the
host with prints, when the guest driver is misbehaving.
In this way, prints can be dynamically enabled when the vDPA block
simulator is used to validate a driver.

Suggested-by: Jason Wang <jasowang@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20220630153221.83371-2-sgarzare@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c b/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c
index 42d401d..a83a5c7 100644 (file)
--- a/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c
+++ b/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c
@@ -76,13 +76,13 @@ static bool vdpasim_blk_handle_req(struct vdpasim *vdpasim,
                return false;
 
        if (vq->out_iov.used < 1 || vq->in_iov.used < 1) {
-               dev_err(&vdpasim->vdpa.dev, "missing headers - out_iov: %u in_iov %u\n",
+               dev_dbg(&vdpasim->vdpa.dev, "missing headers - out_iov: %u in_iov %u\n",
                        vq->out_iov.used, vq->in_iov.used);
                return false;
        }
 
        if (vq->in_iov.iov[vq->in_iov.used - 1].iov_len < 1) {
-               dev_err(&vdpasim->vdpa.dev, "request in header too short\n");
+               dev_dbg(&vdpasim->vdpa.dev, "request in header too short\n");
                return false;
        }
 
@@ -96,7 +96,7 @@ static bool vdpasim_blk_handle_req(struct vdpasim *vdpasim,
        bytes = vringh_iov_pull_iotlb(&vq->vring, &vq->out_iov, &hdr,
                                      sizeof(hdr));
        if (bytes != sizeof(hdr)) {
-               dev_err(&vdpasim->vdpa.dev, "request out header too short\n");
+               dev_dbg(&vdpasim->vdpa.dev, "request out header too short\n");
                return false;
        }
 
@@ -110,7 +110,7 @@ static bool vdpasim_blk_handle_req(struct vdpasim *vdpasim,
        switch (type) {
        case VIRTIO_BLK_T_IN:
                if (!vdpasim_blk_check_range(sector, to_push)) {
-                       dev_err(&vdpasim->vdpa.dev,
+                       dev_dbg(&vdpasim->vdpa.dev,
                                "reading over the capacity - offset: 0x%llx len: 0x%zx\n",
                                offset, to_push);
                        status = VIRTIO_BLK_S_IOERR;
@@ -121,7 +121,7 @@ static bool vdpasim_blk_handle_req(struct vdpasim *vdpasim,
                                              vdpasim->buffer + offset,
                                              to_push);
                if (bytes < 0) {
-                       dev_err(&vdpasim->vdpa.dev,
+                       dev_dbg(&vdpasim->vdpa.dev,
                                "vringh_iov_push_iotlb() error: %zd offset: 0x%llx len: 0x%zx\n",
                                bytes, offset, to_push);
                        status = VIRTIO_BLK_S_IOERR;
@@ -133,7 +133,7 @@ static bool vdpasim_blk_handle_req(struct vdpasim *vdpasim,
 
        case VIRTIO_BLK_T_OUT:
                if (!vdpasim_blk_check_range(sector, to_pull)) {
-                       dev_err(&vdpasim->vdpa.dev,
+                       dev_dbg(&vdpasim->vdpa.dev,
                                "writing over the capacity - offset: 0x%llx len: 0x%zx\n",
                                offset, to_pull);
                        status = VIRTIO_BLK_S_IOERR;
@@ -144,7 +144,7 @@ static bool vdpasim_blk_handle_req(struct vdpasim *vdpasim,
                                              vdpasim->buffer + offset,
                                              to_pull);
                if (bytes < 0) {
-                       dev_err(&vdpasim->vdpa.dev,
+                       dev_dbg(&vdpasim->vdpa.dev,
                                "vringh_iov_pull_iotlb() error: %zd offset: 0x%llx len: 0x%zx\n",
                                bytes, offset, to_pull);
                        status = VIRTIO_BLK_S_IOERR;
@@ -157,7 +157,7 @@ static bool vdpasim_blk_handle_req(struct vdpasim *vdpasim,
                                              vdpasim_blk_id,
                                              VIRTIO_BLK_ID_BYTES);
                if (bytes < 0) {
-                       dev_err(&vdpasim->vdpa.dev,
+                       dev_dbg(&vdpasim->vdpa.dev,
                                "vringh_iov_push_iotlb() error: %zd\n", bytes);
                        status = VIRTIO_BLK_S_IOERR;
                        break;
@@ -167,8 +167,8 @@ static bool vdpasim_blk_handle_req(struct vdpasim *vdpasim,
                break;
 
        default:
-               dev_warn(&vdpasim->vdpa.dev,
-                        "Unsupported request type %d\n", type);
+               dev_dbg(&vdpasim->vdpa.dev,
+                       "Unsupported request type %d\n", type);
                status = VIRTIO_BLK_S_IOERR;
                break;
        }