diff --git a/chart/README.md b/chart/README.md
index 81ee2397b..251a72f9d 100644
--- a/chart/README.md
+++ b/chart/README.md
@@ -201,8 +201,15 @@ This removes all the Kubernetes components associated with the chart and deletes
 | io_engine.&ZeroWidthSpace;nodeSelector | Node selectors to designate storage nodes for diskpool creation Note that if multi-arch images support 'kubernetes.io/arch: amd64' should be removed. | <pre>{<br>"kubernetes.io/arch":"amd64",<br>"openebs.io/engine":"mayastor"<br>}</pre> |
 | io_engine.&ZeroWidthSpace;nvme.&ZeroWidthSpace;ioTimeout | Timeout for IOs The default here is exaggerated for local disks, but we've observed that in shared virtual environments having a higher timeout value is beneficial. Please adjust this according to your hardware and needs. | `"110s"` |
 | io_engine.&ZeroWidthSpace;nvme.&ZeroWidthSpace;rdma.&ZeroWidthSpace;bufCacheSize | The number of shared buffers to reserve for each poll group | `"64"` |
+| io_engine.&ZeroWidthSpace;nvme.&ZeroWidthSpace;rdma.&ZeroWidthSpace;dataWrPoolSize | RDMA data WR pool size (RDMA only) | `"4095"` |
+| io_engine.&ZeroWidthSpace;nvme.&ZeroWidthSpace;rdma.&ZeroWidthSpace;inCapsuleDataSize | Max number of in-capsule data size | `"4096"` |
+| io_engine.&ZeroWidthSpace;nvme.&ZeroWidthSpace;rdma.&ZeroWidthSpace;ioUnitSize | I/O unit size (bytes) | `"8192"` |
+| io_engine.&ZeroWidthSpace;nvme.&ZeroWidthSpace;rdma.&ZeroWidthSpace;maxIoSize | Max I/O size (bytes) | `"131072"` |
 | io_engine.&ZeroWidthSpace;nvme.&ZeroWidthSpace;rdma.&ZeroWidthSpace;numSharedBuf | The number of pooled data buffers available to the transport | `"2047"` |
 | io_engine.&ZeroWidthSpace;nvme.&ZeroWidthSpace;tcp.&ZeroWidthSpace;bufCacheSize | The number of shared buffers to reserve for each poll group | `"64"` |
+| io_engine.&ZeroWidthSpace;nvme.&ZeroWidthSpace;tcp.&ZeroWidthSpace;inCapsuleDataSize | Max number of in-capsule data size | `"4096"` |
+| io_engine.&ZeroWidthSpace;nvme.&ZeroWidthSpace;tcp.&ZeroWidthSpace;ioUnitSize | I/O unit size (bytes) | `"131072"` |
+| io_engine.&ZeroWidthSpace;nvme.&ZeroWidthSpace;tcp.&ZeroWidthSpace;maxIoSize | Max I/O size (bytes) | `"131072"` |
 | io_engine.&ZeroWidthSpace;nvme.&ZeroWidthSpace;tcp.&ZeroWidthSpace;maxQpairsPerCtrl | Max number of IO qpairs per controller | `"32"` |
 | io_engine.&ZeroWidthSpace;nvme.&ZeroWidthSpace;tcp.&ZeroWidthSpace;maxQueueDepth | You may need to increase this for a higher outstanding IOs per volume | `"32"` |
 | io_engine.&ZeroWidthSpace;nvme.&ZeroWidthSpace;tcp.&ZeroWidthSpace;numSharedBuf | The number of pooled data buffers available to the transport | `"2047"` |
diff --git a/chart/templates/mayastor/io/io-engine-daemonset.yaml b/chart/templates/mayastor/io/io-engine-daemonset.yaml
index 17f6a34ed..872b8782a 100644
--- a/chart/templates/mayastor/io/io-engine-daemonset.yaml
+++ b/chart/templates/mayastor/io/io-engine-daemonset.yaml
@@ -57,11 +57,25 @@ spec:
           value: "{{ .Values.io_engine.nvme.tcp.maxQpairsPerCtrl }}"
         - name: NVMF_TCP_MAX_QUEUE_DEPTH
           value: "{{ .Values.io_engine.nvme.tcp.maxQueueDepth }}"
+        - name: NVMF_TCP_IN_CAPSULE_DATA_SIZE
+          value: "{{ .Values.io_engine.nvme.tcp.inCapsuleDataSize }}"
+        - name: NVMF_TCP_MAX_IO_SIZE
+          value: "{{ .Values.io_engine.nvme.tcp.maxIoSize }}"
+        - name: NVMF_TCP_IO_UNIT_SIZE
+          value: "{{ .Values.io_engine.nvme.tcp.ioUnitSize }}"
         {{- if .Values.io_engine.target.nvmf.rdma.enabled }}
         - name: NVMF_RDMA_NUM_SHARED_BUF
           value: "{{ .Values.io_engine.nvme.rdma.numSharedBuf }}"
         - name: NVMF_RDMA_BUF_CACHE_SIZE
           value: "{{ .Values.io_engine.nvme.rdma.bufCacheSize }}"
+        - name: NVMF_RDMA_DATA_WR_POOL_SIZE
+          value: "{{ .Values.io_engine.nvme.rdma.dataWrPoolSize }}"
+        - name: NVMF_RDMA_MAX_IO_SIZE
+          value: "{{ .Values.io_engine.nvme.rdma.maxIoSize }}"
+        - name: NVMF_RDMA_IO_UNIT_SIZE
+          value: "{{ .Values.io_engine.nvme.rdma.ioUnitSize }}"
+        - name: NVMF_RDMA_IN_CAPSULE_DATA_SIZE
+          value: "{{ .Values.io_engine.nvme.rdma.inCapsuleDataSize }}"
         {{- end }}
         - name: NVME_TIMEOUT
           value: "{{ .Values.io_engine.nvme.ioTimeout }}"
diff --git a/chart/values.yaml b/chart/values.yaml
index 3c406be8b..e655332ab 100644
--- a/chart/values.yaml
+++ b/chart/values.yaml
@@ -490,11 +490,25 @@ io_engine:
       numSharedBuf: "2047"
       # -- The number of shared buffers to reserve for each poll group
       bufCacheSize: "64"
+      # -- Max number of in-capsule data size
+      inCapsuleDataSize: "4096"
+      # -- Max I/O size (bytes)
+      maxIoSize: "131072"
+      # -- I/O unit size (bytes)
+      ioUnitSize: "131072"
     rdma:
       # -- The number of pooled data buffers available to the transport
       numSharedBuf: "2047"
       # -- The number of shared buffers to reserve for each poll group
       bufCacheSize: "64"
+      # -- RDMA data WR pool size (RDMA only)
+      dataWrPoolSize: "4095"
+      # -- Max number of in-capsule data size
+      inCapsuleDataSize: "4096"
+      # -- Max I/O size (bytes)
+      maxIoSize: "131072"
+      # -- I/O unit size (bytes)
+      ioUnitSize: "8192"
   # -- Pass additional arguments to the Environment Abstraction Layer.
   # Example: --set {product}.envcontext=iova-mode=pa
   envcontext: ""