Transmit and Receive Contexts. Sean Hefty. Local Queue Management. Traditional view Fixed number of entries Each entry a fixed size. Memory optimized Fixed allocation Entries variable size. Local Queue Data. Application request Specified operation 0 or more IO vectors (SGEs).
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Transmit and Receive Contexts
Size to record operation
Size to record IO vector
Size in bytes
needed = ((op_size + iov_size * nsge) +op_alignment- 1) & ~(op_alignment - 1)
needed = op_size + inject_size