Add some log of virtio blk device config space information
at VDPA launch before qemu connects.
Signed-off-by: Andy Pei <andy.pei@intel.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
---
drivers/vdpa/ifc/ifcvf_vdpa.c | 34 ++++++++++++++++++++++++++++++++++
1 file changed, 34 insertions(+)
@@ -1387,6 +1387,9 @@ struct rte_vdpa_dev_info dev_info[] = {
struct rte_kvargs *kvlist = NULL;
int ret = 0;
int16_t device_id;
+ uint64_t capacity = 0;
+ uint8_t *byte;
+ uint32_t i;
if (rte_eal_process_type() != RTE_PROC_PRIMARY)
return 0;
@@ -1453,6 +1456,37 @@ struct rte_vdpa_dev_info dev_info[] = {
internal->features = features &
~(1ULL << VIRTIO_F_IOMMU_PLATFORM);
internal->features |= dev_info[IFCVF_BLK].features;
+
+ /* cannot read 64-bit register in one attempt,
+ * so read byte by byte.
+ */
+ for (i = 0; i < sizeof(internal->hw.blk_cfg->capacity); i++) {
+ byte = (uint8_t *)&internal->hw.blk_cfg->capacity + i;
+ capacity |= (uint64_t)*byte << (i * 8);
+ }
+ /* The capacity is number of sectors in 512-byte.
+ * So right shift 1 bit we get in K,
+ * another right shift 10 bits we get in M,
+ * right shift 10 more bits, we get in G.
+ * To show capacity in G, we right shift 21 bits in total.
+ */
+ DRV_LOG(DEBUG, "capacity : %"PRIu64"G", capacity >> 21);
+
+ DRV_LOG(DEBUG, "size_max : 0x%08x",
+ internal->hw.blk_cfg->size_max);
+ DRV_LOG(DEBUG, "seg_max : 0x%08x",
+ internal->hw.blk_cfg->seg_max);
+ DRV_LOG(DEBUG, "blk_size : 0x%08x",
+ internal->hw.blk_cfg->blk_size);
+ DRV_LOG(DEBUG, "geometry");
+ DRV_LOG(DEBUG, " cylinders: %u",
+ internal->hw.blk_cfg->geometry.cylinders);
+ DRV_LOG(DEBUG, " heads : %u",
+ internal->hw.blk_cfg->geometry.heads);
+ DRV_LOG(DEBUG, " sectors : %u",
+ internal->hw.blk_cfg->geometry.sectors);
+ DRV_LOG(DEBUG, "num_queues: 0x%08x",
+ internal->hw.blk_cfg->num_queues);
}
list->internal = internal;