[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[PATCH 7/9] hw/nvme: add helper functions for converting reservation typ
From: |
Changqi Lu |
Subject: |
[PATCH 7/9] hw/nvme: add helper functions for converting reservation types |
Date: |
Wed, 8 May 2024 17:36:27 +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.
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 0/9] Support persistent reservation operations, Changqi Lu, 2024/05/08
- [PATCH 2/9] block/raw: add persistent reservation in/out driver, Changqi Lu, 2024/05/08
- [PATCH 4/9] scsi/util: add helper functions for persistent reservation types conversion, Changqi Lu, 2024/05/08
- [PATCH 7/9] hw/nvme: add helper functions for converting reservation types,
Changqi Lu <=
- [PATCH 9/9] block/iscsi: add persistent reservation in/out driver, Changqi Lu, 2024/05/08
- [PATCH 1/9] block: add persistent reservation in/out api, Changqi Lu, 2024/05/08
- [PATCH 5/9] hw/scsi: add persistent reservation in/out api for scsi device, Changqi Lu, 2024/05/08
- [PATCH 3/9] scsi/constant: add persistent reservation in/out protocol constants, Changqi Lu, 2024/05/08