libnvme(9) API Manual libnvme(9)

# [NAME](#NAME)

enum nvme\_pmrebs - This field indicates the persistent memory region elasticity buffer size

# [SYNOPSIS](#SYNOPSIS)

enum nvme\_pmrebs {  
**NVME\_PMREBS\_PMRSZU\_SHIFT** ,  
**NVME\_PMREBS\_RBB\_SHIFT** ,  
**NVME\_PMREBS\_PMRWBZ\_SHIFT** ,  
**NVME\_PMREBS\_PMRSZU\_MASK** ,  
**NVME\_PMREBS\_RBB\_MASK** ,  
**NVME\_PMREBS\_PMRWBZ\_MASK** ,  
**NVME\_PMREBS\_PMRSZU\_B** ,  
**NVME\_PMREBS\_PMRSZU\_1K** ,  
**NVME\_PMREBS\_PMRSZU\_1M** ,  
**NVME\_PMREBS\_PMRSZU\_1G**

};

# [Constants](#Constants)

[NVME\_PMREBS\_PMRSZU\_SHIFT](#NVME_PMREBS_PMRSZU_SHIFT)

Shift amount to get the PMR elasticity buffer size units

[NVME\_PMREBS\_RBB\_SHIFT](#NVME_PMREBS_RBB_SHIFT)

Shift amount to get the read bypass behavior

[NVME\_PMREBS\_PMRWBZ\_SHIFT](#NVME_PMREBS_PMRWBZ_SHIFT)

Shift amount to get the PMR elasticity buffer size base

[NVME\_PMREBS\_PMRSZU\_MASK](#NVME_PMREBS_PMRSZU_MASK)

Mask to get the PMR elasticity buffer size units

[NVME\_PMREBS\_RBB\_MASK](#NVME_PMREBS_RBB_MASK)

Mask to get the read bypass behavior

[NVME\_PMREBS\_PMRWBZ\_MASK](#NVME_PMREBS_PMRWBZ_MASK)

Mask to get the PMR elasticity buffer size base

[NVME\_PMREBS\_PMRSZU\_B](#NVME_PMREBS_PMRSZU_B)

Bytes

[NVME\_PMREBS\_PMRSZU\_1K](#NVME_PMREBS_PMRSZU_1K)

1 KiB

[NVME\_PMREBS\_PMRSZU\_1M](#NVME_PMREBS_PMRSZU_1M)

1 MiB

[NVME\_PMREBS\_PMRSZU\_1G](#NVME_PMREBS_PMRSZU_1G)

1 GiB

enum nvme\_pmrebs October 2026

---

Document: nvme_pmrebs-libnvme3(2) from nvme-cli 3.2-r0 (Chainguard OS)
Source: https://github.com/linux-nvme/nvme-cli