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[1/3] hw/block/nvme: fix lbaf formats initialization

Message ID 20210421125100.12789-2-anaidu.gollu@samsung.com
State New
Headers show
Series [1/3] hw/block/nvme: fix lbaf formats initialization | expand

Commit Message

Gollu Appalanaidu April 21, 2021, 12:51 p.m. UTC 
Currently LBAF formats are being intialized based on metadata
size if and only if nvme-ns "ms" parameter is non-zero value.
Since FormatNVM command being supported device parameter "ms"
may not be the criteria to initialize the supported LBAFs.

And make LBAF array as read-only.

Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
---
 hw/block/nvme-ns.c | 51 ++++++++++++++++++++--------------------------
 1 file changed, 22 insertions(+), 29 deletions(-)
diff mbox series

Patch

diff --git a/hw/block/nvme-ns.c b/hw/block/nvme-ns.c
index 7bb618f182..ae56142fcd 100644
--- a/hw/block/nvme-ns.c
+++ b/hw/block/nvme-ns.c
@@ -85,39 +85,32 @@  static int nvme_ns_init(NvmeNamespace *ns, Error **errp)
     ds = 31 - clz32(ns->blkconf.logical_block_size);
     ms = ns->params.ms;
 
-    if (ns->params.ms) {
-        id_ns->mc = 0x3;
+    id_ns->mc = 0x3;
 
-        if (ns->params.mset) {
-            id_ns->flbas |= 0x10;
-        }
-
-        id_ns->dpc = 0x1f;
-        id_ns->dps = ((ns->params.pil & 0x1) << 3) | ns->params.pi;
-
-        NvmeLBAF lbaf[16] = {
-            [0] = { .ds =  9           },
-            [1] = { .ds =  9, .ms =  8 },
-            [2] = { .ds =  9, .ms = 16 },
-            [3] = { .ds =  9, .ms = 64 },
-            [4] = { .ds = 12           },
-            [5] = { .ds = 12, .ms =  8 },
-            [6] = { .ds = 12, .ms = 16 },
-            [7] = { .ds = 12, .ms = 64 },
-        };
-
-        memcpy(&id_ns->lbaf, &lbaf, sizeof(lbaf));
-        id_ns->nlbaf = 7;
-    } else {
-        NvmeLBAF lbaf[16] = {
-            [0] = { .ds =  9 },
-            [1] = { .ds = 12 },
-        };
+    if (ms && ns->params.mset) {
+        id_ns->flbas |= 0x10;
+    }
 
-        memcpy(&id_ns->lbaf, &lbaf, sizeof(lbaf));
-        id_ns->nlbaf = 1;
+    id_ns->dpc = 0x1f;
+    id_ns->dps = ns->params.pi;
+    if (ns->params.pi && ns->params.pil) {
+        id_ns->dps |= NVME_ID_NS_DPS_FIRST_EIGHT;
     }
 
+    static const NvmeLBAF lbaf[16] = {
+        [0] = { .ds =  9           },
+        [1] = { .ds =  9, .ms =  8 },
+        [2] = { .ds =  9, .ms = 16 },
+        [3] = { .ds =  9, .ms = 64 },
+        [4] = { .ds = 12           },
+        [5] = { .ds = 12, .ms =  8 },
+        [6] = { .ds = 12, .ms = 16 },
+        [7] = { .ds = 12, .ms = 64 },
+    };
+
+    memcpy(&id_ns->lbaf, &lbaf, sizeof(lbaf));
+    id_ns->nlbaf = 7;
+
     for (i = 0; i <= id_ns->nlbaf; i++) {
         NvmeLBAF *lbaf = &id_ns->lbaf[i];
         if (lbaf->ds == ds) {