The IBA Protection Mechanisms
Refer to Table 16-1 on this page. IBA provides a number of mechanisms that prevent unauthorized operations from being performed. This chapter provides a detailed explanation of each of these mechanisms.
| Problem | Handled by | Support Required? |
|---|---|---|
| Unauthorized local access to a memory area. | PD | Yes |
| Logic within HCA (e.g., a local QP) attempts unauthorized access to system memory. | L_Key | Yes |
| QP on remote CA attempts unauthorized RDMA or Atomic access to an area of CA's local memory. | R_Key | Yes, if RDMA and Atomic operations are supported. |
| Port's acceptance of packet from port that is not a member of the same partition. | P_Key |
|
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