diff mbox series

[12/16] nvme: add namespace helpers

Message ID 20200415102445.564803-13-its@irrelevant.dk
State New
Headers show
Series None | expand

Commit Message

Klaus Jensen April 15, 2020, 10:24 a.m. UTC 
From: Klaus Jensen <k.jensen@samsung.com>

Introduce some small helpers to make the next patches easier on the eye.

Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
---
 hw/block/nvme.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
diff mbox series

Patch

diff --git a/hw/block/nvme.h b/hw/block/nvme.h
index ad1786953be9..d9900bed957c 100644
--- a/hw/block/nvme.h
+++ b/hw/block/nvme.h
@@ -67,6 +67,17 @@  typedef struct NvmeNamespace {
     NvmeIdNs        id_ns;
 } NvmeNamespace;
 
+static inline NvmeLBAF *nvme_ns_lbaf(NvmeNamespace *ns)
+{
+    NvmeIdNs *id_ns = &ns->id_ns;
+    return &id_ns->lbaf[NVME_ID_NS_FLBAS_INDEX(id_ns->flbas)];
+}
+
+static inline uint8_t nvme_ns_lbads(NvmeNamespace *ns)
+{
+    return nvme_ns_lbaf(ns)->ds;
+}
+
 #define TYPE_NVME "nvme"
 #define NVME(obj) \
         OBJECT_CHECK(NvmeCtrl, (obj), TYPE_NVME)
@@ -101,4 +112,9 @@  typedef struct NvmeCtrl {
     NvmeIdCtrl      id_ctrl;
 } NvmeCtrl;
 
+static inline uint64_t nvme_ns_nlbas(NvmeCtrl *n, NvmeNamespace *ns)
+{
+    return n->ns_size >> nvme_ns_lbads(ns);
+}
+
 #endif /* HW_NVME_H */