i40e: remove commented code

i40e_bm/i40e_lan.cc

@@ -498,76 +498,6 @@ void lan_queue_tx::tx_desc_ctx::process()
     tq.trigger_tx();
 }
 
-#if 0
-void lan_queue_tx::desc_fetched(void *desc_buf, uint32_t didx)
-{
-
-    struct i40e_tx_desc *desc = reinterpret_cast<struct i40e_tx_desc *>(desc_buf);
-}
-
-void lan_queue_tx::data_fetched(void *desc_buf, uint32_t didx, void *data)
-{
-    struct i40e_tx_desc *desc = reinterpret_cast<struct i40e_tx_desc *>(desc_buf);
-    uint64_t d1 = desc->cmd_type_offset_bsz;
-    std::cerr << "txq: data fetched didx=" << didx << " d1=" << d1 << std::endl;
-    uint16_t pkt_len = (d1 & I40E_TXD_QW1_TX_BUF_SZ_MASK) >>
-        I40E_TXD_QW1_TX_BUF_SZ_SHIFT;
-
-    uint16_t cmd = (d1 & I40E_TXD_QW1_CMD_MASK) >> I40E_TXD_QW1_CMD_SHIFT;
-    bool eop = (cmd & I40E_TX_DESC_CMD_EOP);
-    uint16_t iipt = cmd & (I40E_TX_DESC_CMD_IIPT_MASK);
-    uint16_t l4t = (cmd & I40E_TX_DESC_CMD_L4T_EOFT_MASK);
-
-    uint32_t off = (d1 & I40E_TXD_QW1_OFFSET_MASK) >> I40E_TXD_QW1_OFFSET_SHIFT;
-    uint16_t maclen = ((off & I40E_TXD_QW1_MACLEN_MASK) >>
-        I40E_TX_DESC_LENGTH_MACLEN_SHIFT) * 2;
-    uint16_t iplen = ((off & I40E_TXD_QW1_IPLEN_MASK) >>
-        I40E_TX_DESC_LENGTH_IPLEN_SHIFT) * 4;
-    /*uint16_t l4len = (off & I40E_TXD_QW1_L4LEN_MASK) >>
-        I40E_TX_DESC_LENGTH_L4_FC_LEN_SHIFT;*/
-
-    std::cerr << "    eop=" << eop << " len=" << pkt_len << " pktbuf_len=" << pktbuf_len << std::endl;
-
-    // part of a multi-descriptor packet
-    if (!eop || pktbuf_len != 0) {
-        if (pktbuf_len + pkt_len > MTU) {
-            std::cerr << "multi desc packet longer than MTU pbl=" << pktbuf_len
-                << " len=" << pkt_len << std::endl;
-            abort();
-        }
-
-        memcpy(pktbuf + pktbuf_len, data, pkt_len);
-        pktbuf_len += pkt_len;
-
-        if (!eop) {
-            // not done yet
-            goto writeback;
-        }
-
-        data = pktbuf;
-        pkt_len = pktbuf_len;
-    }
-
-    if (l4t == I40E_TX_DESC_CMD_L4T_EOFT_TCP) {
-        uint16_t tcp_off = maclen + iplen;
-        xsum_tcp((uint8_t *) data + tcp_off, pkt_len - tcp_off);
-    }
-    std::cerr << "    iipt=" << iipt << " l4t=" << l4t << " maclen=" << maclen << " iplen=" << iplen<< std::endl;
-
-    runner->eth_send(data, pkt_len);
-    pktbuf_len = 0;
-
-writeback:
-    desc->buffer_addr = 0;
-    desc->cmd_type_offset_bsz = I40E_TX_DESC_DTYPE_DESC_DONE << I40E_TXD_QW1_DTYPE_SHIFT;
-    desc_writeback(desc_buf, didx);
-}
-
-void lan_queue_tx::desc_writeback(const void *desc, uint32_t didx)
-{
-}
-#endif
-
 lan_queue_tx::dma_hwb::dma_hwb(lan_queue_tx &queue_, uint32_t pos_,
         uint32_t cnt_, uint32_t nh_)
     : queue(queue_), pos(pos_), cnt(cnt_), next_head(nh_)