From: Minwoo Im <minwoo...@samsung.com>
The number of virtual functions(VFs) supported in SR-IOV is 64k as per
spec. To test a large number of MSI-X vectors mapping to CPU matrix in
the QEMU system, we need much more than 127 VFs. This patch made
support for 256 VFs per a physical function(PF).
Signed-off-by: Minwoo Im <minwoo...@samsung.com>
Reviewed-by: Klaus Jensen <k.jen...@samsung.com>
---
hw/nvme/ctrl.c | 4 ++--
hw/nvme/nvme.h | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c
index cfe53a358871..8198fd2d8e46 100644
--- a/hw/nvme/ctrl.c
+++ b/hw/nvme/ctrl.c
@@ -219,7 +219,7 @@
#define NVME_TEMPERATURE_CRITICAL 0x175
#define NVME_NUM_FW_SLOTS 1
#define NVME_DEFAULT_MAX_ZA_SIZE (128 * KiB)
-#define NVME_MAX_VFS 127
+#define NVME_MAX_VFS 256
#define NVME_VF_RES_GRANULARITY 1
#define NVME_VF_OFFSET 0x1
#define NVME_VF_STRIDE 1
@@ -8425,7 +8425,7 @@ static Property nvme_props[] = {
DEFINE_PROP_UINT8("zoned.zasl", NvmeCtrl, params.zasl, 0),
DEFINE_PROP_BOOL("zoned.auto_transition", NvmeCtrl,
params.auto_transition_zones, true),
- DEFINE_PROP_UINT8("sriov_max_vfs", NvmeCtrl, params.sriov_max_vfs, 0),
+ DEFINE_PROP_UINT16("sriov_max_vfs", NvmeCtrl, params.sriov_max_vfs, 0),
DEFINE_PROP_UINT16("sriov_vq_flexible", NvmeCtrl,
params.sriov_vq_flexible, 0),
DEFINE_PROP_UINT16("sriov_vi_flexible", NvmeCtrl,
diff --git a/hw/nvme/nvme.h b/hw/nvme/nvme.h
index 5f2ae7b28b9c..db2cda098ebd 100644
--- a/hw/nvme/nvme.h
+++ b/hw/nvme/nvme.h
@@ -517,7 +517,7 @@ typedef struct NvmeParams {
bool auto_transition_zones;
bool legacy_cmb;
bool ioeventfd;
- uint8_t sriov_max_vfs;
+ uint16_t sriov_max_vfs;
uint16_t sriov_vq_flexible;
uint16_t sriov_vi_flexible;
uint8_t sriov_max_vq_per_vf;
--
2.34.1
