[for-7.0,1/4] hw/nvme: add struct for zone management send

Commit Message

Klaus Jensen Nov. 25, 2021, 7:37 a.m. UTC

From: Klaus Jensen <[e-mail]>

Add struct for Zone Management Send in preparation for more zone send
flags.

Signed-off-by: Klaus Jensen <[e-mail]>
---
 hw/nvme/ctrl.c       | 10 ++++------
 include/block/nvme.h | 18 ++++++++++++++++++
 2 files changed, 22 insertions(+), 6 deletions(-)

Comments

Keith Busch Jan. 26, 2022, 5 p.m. UTC | #1

On Thu, Nov 25, 2021 at 08:37:32AM +0100, Klaus Jensen wrote:
> +typedef struct QEMU_PACKED NvmeZoneSendCmd {
> +    uint8_t     opcode;
> +    uint8_t     flags;
> +    uint16_t    cid;
> +    uint32_t    nsid;
> +    uint32_t    rsvd2[4];
> +    NvmeCmdDptr dptr;
> +    uint64_t    slba;
> +    uint32_t    rsvd12;
> +    uint8_t     zsa;
> +    uint8_t     zsflags[3];

This should be just a single uint8_t for zsflags, followed by 
'uint8_t rsvd[2]'.

Otherwise, looks good.

Reviewed-by: Keith Busch <[e-mail]>

Patch

diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c
index 5f573c417b3d..489d586ab9d7 100644
--- a/hw/nvme/ctrl.c
+++ b/hw/nvme/ctrl.c
@@ -3593,26 +3593,24 @@  done:
 
 static uint16_t nvme_zone_mgmt_send(NvmeCtrl *n, NvmeRequest *req)
 {
-    NvmeCmd *cmd = (NvmeCmd *)&req->cmd;
+    NvmeZoneSendCmd *cmd = (NvmeZoneSendCmd *)&req->cmd;
     NvmeNamespace *ns = req->ns;
     NvmeZone *zone;
     NvmeZoneResetAIOCB *iocb;
     uint8_t *zd_ext;
-    uint32_t dw13 = le32_to_cpu(cmd->cdw13);
     uint64_t slba = 0;
     uint32_t zone_idx = 0;
     uint16_t status;
-    uint8_t action;
+    uint8_t action = cmd->zsa;
     bool all;
     enum NvmeZoneProcessingMask proc_mask = NVME_PROC_CURRENT_ZONE;
 
-    action = dw13 & 0xff;
-    all = !!(dw13 & 0x100);
+    all = cmd->zsflags[0] & NVME_ZSFLAG_SELECT_ALL;
 
     req->status = NVME_SUCCESS;
 
     if (!all) {
-        status = nvme_get_mgmt_zone_slba_idx(ns, cmd, &slba, &zone_idx);
+        status = nvme_get_mgmt_zone_slba_idx(ns, &req->cmd, &slba, &zone_idx);
         if (status) {
             return status;
         }
diff --git a/include/block/nvme.h b/include/block/nvme.h
index e3bd47bf76ab..2ee227760265 100644
--- a/include/block/nvme.h
+++ b/include/block/nvme.h
@@ -1433,6 +1433,20 @@  enum NvmeZoneType {
     NVME_ZONE_TYPE_SEQ_WRITE         = 0x02,
 };
 
+typedef struct QEMU_PACKED NvmeZoneSendCmd {
+    uint8_t     opcode;
+    uint8_t     flags;
+    uint16_t    cid;
+    uint32_t    nsid;
+    uint32_t    rsvd2[4];
+    NvmeCmdDptr dptr;
+    uint64_t    slba;
+    uint32_t    rsvd12;
+    uint8_t     zsa;
+    uint8_t     zsflags[3];
+    uint32_t    rsvd14[2];
+} NvmeZoneSendCmd;
+
 enum NvmeZoneSendAction {
     NVME_ZONE_ACTION_RSD             = 0x00,
     NVME_ZONE_ACTION_CLOSE           = 0x01,
@@ -1443,6 +1457,10 @@  enum NvmeZoneSendAction {
     NVME_ZONE_ACTION_SET_ZD_EXT      = 0x10,
 };
 
+enum {
+    NVME_ZSFLAG_SELECT_ALL = 1 << 0,
+};
+
 typedef struct QEMU_PACKED NvmeZoneDescr {
     uint8_t     zt;
     uint8_t     zs;