[dpdk-dev] [PATCH v6 00/15] remove mbuf userdata

[Ferruh Yigit]

On 11/2/2020 11:08 AM, Ferruh Yigit wrote:
> On 11/2/2020 9:11 AM, Jiawen Wu wrote:
>> On Sunday, November 1, 2020 6:26 PM, David Marchand wrote:
>>> On Sun, Nov 1, 2020 at 10:15 AM Thomas Monjalon <thomas at monjalon.net>
>>> wrote:
>>>>> The new txgbe driver in the next-net is also using ‘udata64’, that
>>>>> also needs to be updated. cc'ed txgbe maintainer.
>>>>
>>>> That's a pity it did not take into account the deprecation notice.
>>>> What kind of hack is it used for?
>>>> Can it be simply removed to allow quick merging of the PMD?
>>>
>>> +1 for removing.
>>>
>>> It seems to be a provision for future features, as this field is simply 
>>> passed to
>>> an internal function that does not use it.
>>>
>>> $ git grep -C 2 udata drivers/net/txgbe/
>>> drivers/net/txgbe/txgbe_rxtx.c-
>>> drivers/net/txgbe/txgbe_rxtx.c-
>>> txgbe_set_xmit_ctx(txq, ctx_txd, tx_ol_req,
>>> drivers/net/txgbe/txgbe_rxtx.c:
>>> tx_offload, &tx_pkt->udata64);
>>> drivers/net/txgbe/txgbe_rxtx.c-
>>> drivers/net/txgbe/txgbe_rxtx.c-                         txe->last_id =
>>> tx_last;
>>>
>>> $ git grep -C 2 txgbe_set_xmit_ctx drivers/net/txgbe/
>>> drivers/net/txgbe/txgbe_rxtx.c-
>>> drivers/net/txgbe/txgbe_rxtx.c-static inline void
>>> drivers/net/txgbe/txgbe_rxtx.c:txgbe_set_xmit_ctx(struct txgbe_tx_queue
>>> *txq,
>>> drivers/net/txgbe/txgbe_rxtx.c-         volatile struct
>>> txgbe_tx_ctx_desc *ctx_txd,
>>> drivers/net/txgbe/txgbe_rxtx.c-         uint64_t ol_flags, union
>>> txgbe_tx_offload tx_offload,
>>> -- 
>>> drivers/net/txgbe/txgbe_rxtx.c-                         }
>>> drivers/net/txgbe/txgbe_rxtx.c-
>>> drivers/net/txgbe/txgbe_rxtx.c:
>>> txgbe_set_xmit_ctx(txq, ctx_txd, tx_ol_req,
>>> drivers/net/txgbe/txgbe_rxtx.c-
>>> tx_offload, &tx_pkt->udata64);
>>> drivers/net/txgbe/txgbe_rxtx.c-
>>>
>>> $ git grep -w mdata drivers/net/txgbe/
>>> drivers/net/txgbe/txgbe_rxtx.c:         __rte_unused uint64_t *mdata)
>>>
>>>
>>> -- 
>>> David Marchand
>>
>> Thanks for review.
>> It can be just simply removed in txgbe driver.
>>
> 
> OK, I will remove it in the next-net.
> 

Applied following:

  diff --git a/drivers/net/txgbe/txgbe_rxtx.c b/drivers/net/txgbe/txgbe_rxtx.c
  index b35b7de1cb..4d8b43423d 100644
  --- a/drivers/net/txgbe/txgbe_rxtx.c
  +++ b/drivers/net/txgbe/txgbe_rxtx.c
  @@ -281,8 +281,7 @@ txgbe_xmit_pkts_simple(void *tx_queue, struct rte_mbuf 
**tx_pkts,
   static inline void
   txgbe_set_xmit_ctx(struct txgbe_tx_queue *txq,
                  volatile struct txgbe_tx_ctx_desc *ctx_txd,
  -               uint64_t ol_flags, union txgbe_tx_offload tx_offload,
  -               __rte_unused uint64_t *mdata)
  +               uint64_t ol_flags, union txgbe_tx_offload tx_offload)
   {
          union txgbe_tx_offload tx_offload_mask;
          uint32_t type_tucmd_mlhl;
  @@ -861,7 +860,7 @@ txgbe_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
                                  }

                                  txgbe_set_xmit_ctx(txq, ctx_txd, tx_ol_req,
  -                                       tx_offload, &tx_pkt->udata64);
  +                                       tx_offload);

                                  txe->last_id = tx_last;
                                  tx_id = txe->next_id;