diff mbox series

[v8,08/10] hw/nvme: enable ONCS and rescap function

Message ID 20240709024706.4108-9-luchangqi.123@bytedance.com
State New
Headers show
Series Support persistent reservation operations | expand

Commit Message

Changqi Lu July 9, 2024, 2:47 a.m. UTC 
This commit enables ONCS to support the reservation
function at the controller level. Also enables rescap
function in the namespace by detecting the supported reservation
function in the backend driver.

Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Changqi Lu <luchangqi.123@bytedance.com>
Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
---
 hw/nvme/ctrl.c       | 3 ++-
 hw/nvme/ns.c         | 5 +++++
 include/block/nvme.h | 2 +-
 3 files changed, 8 insertions(+), 2 deletions(-)

Comments

Stefan Hajnoczi July 11, 2024, 1:01 p.m. UTC | #1 
On Tue, Jul 09, 2024 at 10:47:04AM +0800, Changqi Lu wrote:
> This commit enables ONCS to support the reservation
> function at the controller level. Also enables rescap
> function in the namespace by detecting the supported reservation
> function in the backend driver.
> 
> Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
> Signed-off-by: Changqi Lu <luchangqi.123@bytedance.com>
> Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
> ---
>  hw/nvme/ctrl.c       | 3 ++-
>  hw/nvme/ns.c         | 5 +++++
>  include/block/nvme.h | 2 +-
>  3 files changed, 8 insertions(+), 2 deletions(-)

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
diff mbox series

Patch

diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c
index 127c3d2383..ad212de723 100644
--- a/hw/nvme/ctrl.c
+++ b/hw/nvme/ctrl.c
@@ -8248,7 +8248,8 @@  static void nvme_init_ctrl(NvmeCtrl *n, PCIDevice *pci_dev)
     id->nn = cpu_to_le32(NVME_MAX_NAMESPACES);
     id->oncs = cpu_to_le16(NVME_ONCS_WRITE_ZEROES | NVME_ONCS_TIMESTAMP |
                            NVME_ONCS_FEATURES | NVME_ONCS_DSM |
-                           NVME_ONCS_COMPARE | NVME_ONCS_COPY);
+                           NVME_ONCS_COMPARE | NVME_ONCS_COPY |
+                           NVME_ONCS_RESERVATIONS);
 
     /*
      * NOTE: If this device ever supports a command set that does NOT use 0x0
diff --git a/hw/nvme/ns.c b/hw/nvme/ns.c
index ea8db175db..a5c903d727 100644
--- a/hw/nvme/ns.c
+++ b/hw/nvme/ns.c
@@ -20,6 +20,7 @@ 
 #include "qemu/bitops.h"
 #include "sysemu/sysemu.h"
 #include "sysemu/block-backend.h"
+#include "block/block_int.h"
 
 #include "nvme.h"
 #include "trace.h"
@@ -33,6 +34,7 @@  void nvme_ns_init_format(NvmeNamespace *ns)
     BlockDriverInfo bdi;
     int npdg, ret;
     int64_t nlbas;
+    uint8_t blk_pr_cap;
 
     ns->lbaf = id_ns->lbaf[NVME_ID_NS_FLBAS_INDEX(id_ns->flbas)];
     ns->lbasz = 1 << ns->lbaf.ds;
@@ -55,6 +57,9 @@  void nvme_ns_init_format(NvmeNamespace *ns)
     }
 
     id_ns->npda = id_ns->npdg = npdg - 1;
+
+    blk_pr_cap = blk_bs(ns->blkconf.blk)->bl.pr_cap;
+    id_ns->rescap = block_pr_cap_to_nvme(blk_pr_cap);
 }
 
 static int nvme_ns_init(NvmeNamespace *ns, Error **errp)
diff --git a/include/block/nvme.h b/include/block/nvme.h
index 8b125f7769..9b9eaeb3a7 100644
--- a/include/block/nvme.h
+++ b/include/block/nvme.h
@@ -1251,7 +1251,7 @@  enum NvmeIdCtrlOncs {
     NVME_ONCS_DSM           = 1 << 2,
     NVME_ONCS_WRITE_ZEROES  = 1 << 3,
     NVME_ONCS_FEATURES      = 1 << 4,
-    NVME_ONCS_RESRVATIONS   = 1 << 5,
+    NVME_ONCS_RESERVATIONS  = 1 << 5,
     NVME_ONCS_TIMESTAMP     = 1 << 6,
     NVME_ONCS_VERIFY        = 1 << 7,
     NVME_ONCS_COPY          = 1 << 8,