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authorMinwoo Im2021-01-17 15:53:32 +0100
committerKlaus Jensen2021-02-08 21:15:53 +0100
commitaa5e55e3b07ede87a8fd7aa3e67583dfc464dd52 (patch)
treecba8d40eb1cdd430e41e3283fb86c002f8e054fc /hw/block/nvme-ns.c
parenthw/block/nvme: remove unused argument in nvme_ns_init_zoned (diff)
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hw/block/nvme: open code for volatile write cache
Volatile Write Cache(VWC) feature is set in nvme_ns_setup() in the initial time. This feature is related to block device backed, but this feature is controlled in controller level via Set/Get Features command. This patch removed dependency between nvme and nvme-ns to manage the VWC flag value. Also, it open coded the Get Features for VWC to check all namespaces attached to the controller, and if false detected, return directly false. Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com> [k.jensen: report write cache preset if present on ANY namespace] Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Diffstat (limited to 'hw/block/nvme-ns.c')
-rw-r--r--hw/block/nvme-ns.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/hw/block/nvme-ns.c b/hw/block/nvme-ns.c
index d35c2925ec..7a5a779837 100644
--- a/hw/block/nvme-ns.c
+++ b/hw/block/nvme-ns.c
@@ -90,10 +90,6 @@ static int nvme_ns_init_blk(NvmeCtrl *n, NvmeNamespace *ns, Error **errp)
return -1;
}
- if (blk_enable_write_cache(ns->blkconf.blk)) {
- n->features.vwc = 0x1;
- }
-
return 0;
}