From: Mitchell Horne <mho...@freebsd.org>

API clients can make a syscall requesting the enumeration of network and
storage devices. However, this does not check for virtio-blk storage
devices, which API consumers may wish to use. Add the support to
enumerate these devices as well.

Signed-off-by: Mitchell Horne <mho...@freebsd.org>
---
 api/api_storage.c    | 14 +++++++++++++-
 include/api_public.h |  1 +
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/api/api_storage.c b/api/api_storage.c
index 7ae03ac230..866c82d7ec 100644
--- a/api/api_storage.c
+++ b/api/api_storage.c
@@ -30,7 +30,8 @@
 #define ENUM_SCSI      2
 #define ENUM_MMC       3
 #define ENUM_SATA      4
-#define ENUM_MAX       5
+#define ENUM_VIRTIO    5
+#define ENUM_MAX       6
 
 struct stor_spec {
        int             max_dev;
@@ -46,6 +47,10 @@ static struct stor_spec specs[ENUM_MAX] = { { 0, 0, 0, 0, 
NULL }, };
 #define CONFIG_SYS_MMC_MAX_DEVICE      1
 #endif
 
+#ifndef CONFIG_SYS_VIRTIO_BLK_MAX_DEVICE
+#define CONFIG_SYS_VIRTIO_BLK_MAX_DEVICE       1
+#endif
+
 void dev_stor_init(void)
 {
 #if defined(CONFIG_IDE)
@@ -83,6 +88,13 @@ void dev_stor_init(void)
        specs[ENUM_USB].type = DEV_TYP_STOR | DT_STOR_USB;
        specs[ENUM_USB].name = "usb";
 #endif
+#if defined(CONFIG_VIRTIO_BLK)
+       specs[ENUM_VIRTIO].max_dev = CONFIG_SYS_VIRTIO_BLK_MAX_DEVICE;
+       specs[ENUM_VIRTIO].enum_started = 0;
+       specs[ENUM_VIRTIO].enum_ended = 0;
+       specs[ENUM_VIRTIO].type = DEV_TYP_STOR | DT_STOR_VIRTIO;
+       specs[ENUM_VIRTIO].name = "virtio";
+#endif
 }
 
 /*
diff --git a/include/api_public.h b/include/api_public.h
index def103ce22..1f9ff49b0b 100644
--- a/include/api_public.h
+++ b/include/api_public.h
@@ -87,6 +87,7 @@ typedef unsigned long lbastart_t;
 #define DT_STOR_USB    0x0040
 #define DT_STOR_MMC    0x0080
 #define DT_STOR_SATA   0x0100
+#define DT_STOR_VIRTIO 0x0200
 
 #define DEV_STA_CLOSED 0x0000          /* invalid, closed */
 #define DEV_STA_OPEN   0x0001          /* open i.e. active */
-- 
2.26.1

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