ISNS_MAX_PDU_PAYLOAD
if (pdu_p->hdr.payload_len == ISNS_MAX_PDU_PAYLOAD) {
static struct iovec write_buf[2 + (ISNS_MAX_PDU_PAYLOAD / ISNS_BUF_SIZE) +
((ISNS_MAX_PDU_PAYLOAD % ISNS_BUF_SIZE) != 0)];
static struct iovec read_buf[2 + (ISNS_MAX_PDU_PAYLOAD / ISNS_BUF_SIZE) +
((ISNS_MAX_PDU_PAYLOAD % ISNS_BUF_SIZE) != 0)];