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[PATCH v3 07/11] hw/nvme: add helper functions for converting reservatio
From: |
Changqi Lu |
Subject: |
[PATCH v3 07/11] hw/nvme: add helper functions for converting reservation types |
Date: |
Fri, 17 May 2024 17:52:14 +0800 |
This commit introduces two helper functions
that facilitate the conversion between the
reservation types used in the NVME protocol
and those used in the block layer.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Changqi Lu <luchangqi.123@bytedance.com>
Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
---
hw/nvme/nvme.h | 40 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/hw/nvme/nvme.h b/hw/nvme/nvme.h
index bed8191bd5..6abe479410 100644
--- a/hw/nvme/nvme.h
+++ b/hw/nvme/nvme.h
@@ -474,6 +474,46 @@ static inline const char *nvme_io_opc_str(uint8_t opc)
}
}
+static inline NVMEResvType block_pr_type_to_nvme(BlockPrType type)
+{
+ switch (type) {
+ case BLK_PR_WRITE_EXCLUSIVE:
+ return NVME_RESV_WRITE_EXCLUSIVE;
+ case BLK_PR_EXCLUSIVE_ACCESS:
+ return NVME_RESV_EXCLUSIVE_ACCESS;
+ case BLK_PR_WRITE_EXCLUSIVE_REGS_ONLY:
+ return NVME_RESV_WRITE_EXCLUSIVE_REGS_ONLY;
+ case BLK_PR_EXCLUSIVE_ACCESS_REGS_ONLY:
+ return NVME_RESV_EXCLUSIVE_ACCESS_REGS_ONLY;
+ case BLK_PR_WRITE_EXCLUSIVE_ALL_REGS:
+ return NVME_RESV_WRITE_EXCLUSIVE_ALL_REGS;
+ case BLK_PR_EXCLUSIVE_ACCESS_ALL_REGS:
+ return NVME_RESV_EXCLUSIVE_ACCESS_ALL_REGS;
+ }
+
+ return 0;
+}
+
+static inline BlockPrType nvme_pr_type_to_block(NVMEResvType type)
+{
+ switch (type) {
+ case NVME_RESV_WRITE_EXCLUSIVE:
+ return BLK_PR_WRITE_EXCLUSIVE;
+ case NVME_RESV_EXCLUSIVE_ACCESS:
+ return BLK_PR_EXCLUSIVE_ACCESS;
+ case NVME_RESV_WRITE_EXCLUSIVE_REGS_ONLY:
+ return BLK_PR_WRITE_EXCLUSIVE_REGS_ONLY;
+ case NVME_RESV_EXCLUSIVE_ACCESS_REGS_ONLY:
+ return BLK_PR_EXCLUSIVE_ACCESS_REGS_ONLY;
+ case NVME_RESV_WRITE_EXCLUSIVE_ALL_REGS:
+ return BLK_PR_WRITE_EXCLUSIVE_ALL_REGS;
+ case NVME_RESV_EXCLUSIVE_ACCESS_ALL_REGS:
+ return BLK_PR_EXCLUSIVE_ACCESS_ALL_REGS;
+ }
+
+ return 0;
+}
+
typedef struct NvmeSQueue {
struct NvmeCtrl *ctrl;
uint16_t sqid;
--
2.20.1
- [PATCH v3 00/11] Support persistent reservation operations, Changqi Lu, 2024/05/17
- [PATCH v3 01/11] block: add persistent reservation in/out api, Changqi Lu, 2024/05/17
- [PATCH v3 03/11] scsi/constant: add persistent reservation in/out protocol constants, Changqi Lu, 2024/05/17
- [PATCH v3 04/11] scsi/util: add helper functions for persistent reservation types conversion, Changqi Lu, 2024/05/17
- [PATCH v3 05/11] hw/scsi: add persistent reservation in/out api for scsi device, Changqi Lu, 2024/05/17
- [PATCH v3 02/11] block/raw: add persistent reservation in/out driver, Changqi Lu, 2024/05/17
- [PATCH v3 06/11] block/nvme: add reservation command protocol constants, Changqi Lu, 2024/05/17
- [PATCH v3 07/11] hw/nvme: add helper functions for converting reservation types,
Changqi Lu <=
- [PATCH v3 08/11] hw/nvme: enable ONCS reservations, Changqi Lu, 2024/05/17
- [PATCH v3 09/11] hw/nvme: enable namespace rescap function, Changqi Lu, 2024/05/17
- [PATCH v3 10/11] hw/nvme: add reservation protocal command, Changqi Lu, 2024/05/17
- [PATCH v3 11/11] block/iscsi: add persistent reservation in/out driver, Changqi Lu, 2024/05/17
- Re: [PATCH v3 00/11] Support persistent reservation operations, 卢长奇, 2024/05/23