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From: Kevin Traynor <ktraynor@redhat.com>
To: Ferruh Yigit <ferruh.yigit@intel.com>,
	Thomas Monjalon <thomas@monjalon.net>,
	"Wei Hu (Xavier)" <huwei013@chinasoftinc.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
	"xavier.huwei@huawei.com" <xavier.huwei@huawei.com>,
	Slava Ovsiienko <viacheslavo@nvidia.com>,
	Luca Boccassi <bluca@debian.org>
Subject: Re: [dpdk-dev] [PATCH v4 3/6] app/testpmd: remove restriction on txpkts set
Date: Tue, 24 Nov 2020 13:01:59 +0000
Message-ID: <0bbd9f27-1d0d-2a6d-17f5-993603a0fdb6@redhat.com> (raw)
In-Reply-To: <d67e199f-85d2-4a9e-67de-49187accfdff@intel.com>

On 24/11/2020 12:23, Ferruh Yigit wrote:
> On 11/24/2020 10:27 AM, Thomas Monjalon wrote:
>> Is it OK to keep this regression?
>>
>> Ferruh, what do you suggest?
>>
> 
> I confirm the '--txpkts' parameter is broken now, I suggest submitting a defect 
> for it and continue with the regression.
> 
> We have alternative for the parameter, "set txpkts <len0[,len1]*>" command.
> The parameter was only working when hardcoded '--txd=N' parameter is provided, 
> the command is more dynamic and works however queue size is configured.
> 
> We can fix the '--txpkts' in next release.
> 

For LTS, I will revert from 18.11 branch as I don't want to add a
regression on last 18.11 LTS release.

+cc Luca for 19.11

>>
>> 23/11/2020 12:50, Slava Ovsiienko:
>>> Hi,  Wei
>>>
>>> It was found this patch rejects the --txpkts command line settings.
>>> set_tx_pkt_segments() is called before device started and
>>> we have failure chain:
>>>
>>> set_tx_pkt_segments()
>>>    nb_segs_is_invalid()
>>>      get_tx_ring_size ()
>>>       rte_eth_tx_queue_info_get()
>>>
>>> It causes --txpkts testpmd command line option is ignored.
>>>
>>> With best regards, Slava
>>>
>>>> -----Original Message-----
>>>> From: dev <dev-bounces@dpdk.org> On Behalf Of Wei Hu (Xavier)
>>>> Sent: Friday, September 25, 2020 15:47
>>>> To: dev@dpdk.org
>>>> Cc: xavier.huwei@huawei.com
>>>> Subject: [dpdk-dev] [PATCH v4 3/6] app/testpmd: remove restriction on txpkts
>>>> set
>>>>
>>>> From: Chengchang Tang <tangchengchang@huawei.com>
>>>>
>>>> Currently, if nb_txd is not set, the txpkts is not allowed to be set because the
>>>> nb_txd is used to avoid the numer of segments exceed the Tx ring size and the
>>>> default value of nb_txd is 0. And there is a bug that nb_txd is the global
>>>> configuration for Tx ring size and the ring size could be changed by some
>>>> command per queue. So these valid check is unreliable and introduced
>>>> unnecessary constraints.
>>>>
>>>> This patch adds a valid check function to use the real Tx ring size to check the
>>>> validity of txpkts.
>>>>
>>>> Fixes: af75078fece3 ("first public release")
>>>> Cc: stable@dpdk.org
>>>>
>>>> Signed-off-by: Chengchang Tang <tangchengchang@huawei.com>
>>>> Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
>>>> ---
>>>> v3 -> v4:
>>>> 	 add check 'rte_eth_rx_queue_info_get()' return value and
>>>> 	 if it is '-ENOSTUP' calculate the 'ring_size'.
>>>> v3:      initial version.
>>>> ---
>>>>   app/test-pmd/config.c | 64
>>>> +++++++++++++++++++++++++++++++++++++++++++++++----
>>>>   1 file changed, 60 insertions(+), 4 deletions(-)
>>>>
>>>> diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c index
>>>> 6496d2f..8ebb927 100644
>>>> --- a/app/test-pmd/config.c
>>>> +++ b/app/test-pmd/config.c
>>>> @@ -1893,6 +1893,38 @@ tx_queue_id_is_invalid(queueid_t txq_id)  }
>>>>
>>>>   static int
>>>> +get_tx_ring_size(portid_t port_id, queueid_t txq_id, uint16_t
>>>> +*ring_size) {
>>>> +	struct rte_port *port = &ports[port_id];
>>>> +	struct rte_eth_txq_info tx_qinfo;
>>>> +	int ret;
>>>> +
>>>> +	ret = rte_eth_tx_queue_info_get(port_id, txq_id, &tx_qinfo);
>>>> +	if (ret == 0) {
>>>> +		*ring_size = tx_qinfo.nb_desc;
>>>> +		return ret;
>>>> +	}
>>>> +
>>>> +	if (ret != -ENOTSUP)
>>>> +		return ret;
>>>> +	/*
>>>> +	 * If the rte_eth_tx_queue_info_get is not support for this PMD,
>>>> +	 * ring_size stored in testpmd will be used for validity verification.
>>>> +	 * When configure the txq by rte_eth_tx_queue_setup with
>>>> nb_tx_desc
>>>> +	 * being 0, it will use a default value provided by PMDs to setup this
>>>> +	 * txq. If the default value is 0, it will use the
>>>> +	 * RTE_ETH_DEV_FALLBACK_TX_RINGSIZE to setup this txq.
>>>> +	 */
>>>> +	if (port->nb_tx_desc[txq_id])
>>>> +		*ring_size = port->nb_tx_desc[txq_id];
>>>> +	else if (port->dev_info.default_txportconf.ring_size)
>>>> +		*ring_size = port->dev_info.default_txportconf.ring_size;
>>>> +	else
>>>> +		*ring_size = RTE_ETH_DEV_FALLBACK_TX_RINGSIZE;
>>>> +	return 0;
>>>> +}
>>>> +
>>>> +static int
>>>>   rx_desc_id_is_invalid(uint16_t rxdesc_id)  {
>>>>   	if (rxdesc_id < nb_rxd)
>>>> @@ -2986,17 +3018,41 @@ show_tx_pkt_segments(void)
>>>>   	printf("Split packet: %s\n", split);
>>>>   }
>>>>
>>>> +static bool
>>>> +nb_segs_is_invalid(unsigned int nb_segs) {
>>>> +	uint16_t ring_size;
>>>> +	uint16_t queue_id;
>>>> +	uint16_t port_id;
>>>> +	int ret;
>>>> +
>>>> +	RTE_ETH_FOREACH_DEV(port_id) {
>>>> +		for (queue_id = 0; queue_id < nb_txq; queue_id++) {
>>>> +			ret = get_tx_ring_size(port_id, queue_id, &ring_size);
>>>> +
>>>> +			if (ret)
>>>> +				return true;
>>>> +
>>>> +			if (ring_size < nb_segs) {
>>>> +				printf("nb segments per TX packets=%u >= "
>>>> +				       "TX queue(%u) ring_size=%u - ignored\n",
>>>> +				       nb_segs, queue_id, ring_size);
>>>> +				return true;
>>>> +			}
>>>> +		}
>>>> +	}
>>>> +
>>>> +	return false;
>>>> +}
>>>> +
>>>>   void
>>>>   set_tx_pkt_segments(unsigned *seg_lengths, unsigned nb_segs)  {
>>>>   	uint16_t tx_pkt_len;
>>>>   	unsigned i;
>>>>
>>>> -	if (nb_segs >= (unsigned) nb_txd) {
>>>> -		printf("nb segments per TX packets=%u >= nb_txd=%u -
>>>> ignored\n",
>>>> -		       nb_segs, (unsigned int) nb_txd);
>>>> +	if (nb_segs_is_invalid(nb_segs))
>>>>   		return;
>>>> -	}
>>>>
>>>>   	/*
>>>>   	 * Check that each segment length is greater or equal than
>>>> --
>>>> 2.9.5
>>>
>>>
>>
>>
>>
>>
>>
> 


  reply	other threads:[~2020-11-24 13:02 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-18 12:02 [dpdk-dev] [PATCH 0/4] minor fixes for testpmd Wei Hu (Xavier)
2020-08-18 12:02 ` [dpdk-dev] [PATCH 1/4] app/testpmd: fix missing verification of port id Wei Hu (Xavier)
2020-08-18 12:02 ` [dpdk-dev] [PATCH 2/4] app/testpmd: fix VLAN offload configuration when config fail Wei Hu (Xavier)
2020-08-18 12:02 ` [dpdk-dev] [PATCH 3/4] app/testpmd: fix packet header in txonly mode Wei Hu (Xavier)
2020-08-18 12:02 ` [dpdk-dev] [PATCH 4/4] app/testpmd: fix displaying Rx Tx queues information Wei Hu (Xavier)
2020-08-20  1:42 ` [dpdk-dev] [PATCH v2 0/4] minor fixes for testpmd Wei Hu (Xavier)
2020-08-20  1:42   ` [dpdk-dev] [PATCH v2 1/4] app/testpmd: fix missing verification of port id Wei Hu (Xavier)
2020-09-14 16:13     ` Ferruh Yigit
2020-08-20  1:42   ` [dpdk-dev] [PATCH v2 2/4] app/testpmd: fix VLAN offload configuration when config fail Wei Hu (Xavier)
2020-09-14 16:13     ` Ferruh Yigit
2020-08-20  1:42   ` [dpdk-dev] [PATCH v2 3/4] app/testpmd: fix packet header in txonly mode Wei Hu (Xavier)
2020-09-14 16:23     ` Ferruh Yigit
2020-09-17  7:10       ` Chengchang Tang
2020-09-17 11:16         ` Ferruh Yigit
2020-09-17 11:48           ` Chengchang Tang
2020-08-20  1:42   ` [dpdk-dev] [PATCH v2 4/4] app/testpmd: fix displaying Rx Tx queues information Wei Hu (Xavier)
2020-09-14 16:31     ` Ferruh Yigit
2020-09-16  9:23       ` Wei Hu (Xavier)
2020-09-16 15:58         ` Ferruh Yigit
2020-09-03  3:19   ` [dpdk-dev] [PATCH v2 0/4] minor fixes for testpmd Wei Hu (Xavier)
2020-09-19 10:47 ` [dpdk-dev] [PATCH v3 0/6] " Wei Hu (Xavier)
2020-09-19 10:47   ` [dpdk-dev] [PATCH v3 1/6] app/testpmd: fix missing verification of port id Wei Hu (Xavier)
2020-09-22 14:49     ` Ferruh Yigit
2020-09-19 10:47   ` [dpdk-dev] [PATCH v3 2/6] app/testpmd: fix VLAN offload configuration when config fail Wei Hu (Xavier)
2020-09-19 10:47   ` [dpdk-dev] [PATCH v3 3/6] app/testpmd: remove restriction on txpkts set Wei Hu (Xavier)
2020-09-22 14:51     ` Ferruh Yigit
2020-09-23  3:14       ` Wei Hu (Xavier)
2020-09-23 11:57         ` Wei Hu (Xavier)
2020-09-23 16:59           ` Ferruh Yigit
2020-09-24  6:08             ` Chengchang Tang
2020-09-24 12:19               ` Ferruh Yigit
2020-09-19 10:47   ` [dpdk-dev] [PATCH v3 4/6] app/testpmd: fix packet header in txonly mode Wei Hu (Xavier)
2020-09-19 10:47   ` [dpdk-dev] [PATCH v3 5/6] app/testpmd: fix valid desc id check Wei Hu (Xavier)
2020-09-22 14:53     ` Ferruh Yigit
2020-09-19 10:47   ` [dpdk-dev] [PATCH v3 6/6] app/testpmd: fix displaying Rx Tx queues information Wei Hu (Xavier)
2020-09-25 12:47 ` [dpdk-dev] [PATCH v4 0/6] minor fixes for testpmd Wei Hu (Xavier)
2020-09-25 12:47   ` [dpdk-dev] [PATCH v4 1/6] app/testpmd: fix missing verification of port id Wei Hu (Xavier)
2020-09-25 12:47   ` [dpdk-dev] [PATCH v4 2/6] app/testpmd: fix VLAN offload configuration when config fail Wei Hu (Xavier)
2020-09-25 12:47   ` [dpdk-dev] [PATCH v4 3/6] app/testpmd: remove restriction on txpkts set Wei Hu (Xavier)
2020-11-23 11:50     ` Slava Ovsiienko
2020-11-24 10:27       ` Thomas Monjalon
2020-11-24 12:23         ` Ferruh Yigit
2020-11-24 13:01           ` Kevin Traynor [this message]
2020-11-25 14:06           ` Ferruh Yigit
2020-11-26  7:24             ` Slava Ovsiienko
2020-11-26 12:38               ` Ferruh Yigit
2020-11-27 13:05                 ` Slava Ovsiienko
2020-12-02 12:07                   ` Ferruh Yigit
2020-12-03  9:45                     ` Slava Ovsiienko
2020-12-03 10:18                       ` Ferruh Yigit
2020-12-11 15:07                         ` [dpdk-dev] [PATCH] app/testpmd: fix segment number check Viacheslav Ovsiienko
2020-12-11 16:00                           ` Andrew Boyer
2020-12-11 16:14                             ` Slava Ovsiienko
2020-12-16 12:12                               ` Ferruh Yigit
2020-12-16 12:33                                 ` Slava Ovsiienko
2020-12-16 12:36                           ` Ferruh Yigit
2021-04-23 16:09                           ` [dpdk-dev] [PATCH v2] " Ferruh Yigit
2021-04-26 11:23                             ` Li, Xiaoyun
2021-04-27 11:42                               ` Ferruh Yigit
2020-09-25 12:47   ` [dpdk-dev] [PATCH v4 4/6] app/testpmd: fix packet header in txonly mode Wei Hu (Xavier)
2020-09-29 15:40     ` Ferruh Yigit
2020-09-25 12:47   ` [dpdk-dev] [PATCH v4 5/6] app/testpmd: fix valid desc id check Wei Hu (Xavier)
2020-09-25 12:47   ` [dpdk-dev] [PATCH v4 6/6] app/testpmd: fix displaying Rx Tx queues information Wei Hu (Xavier)
2020-09-29 15:40   ` [dpdk-dev] [PATCH v4 0/6] minor fixes for testpmd Ferruh Yigit

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