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From: Vlad Zolotarov <vladz@cloudius-systems.com>
To: "Ouyang, Changchun" <changchun.ouyang@intel.com>,
	 "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v4 4/6] ether: Check VMDq RSS mode
Date: Mon, 05 Jan 2015 12:09:59 +0200	[thread overview]
Message-ID: <54AA62F7.6080108@cloudius-systems.com> (raw)
In-Reply-To: <F52918179C57134FAEC9EA62FA2F96251194E0B8@shsmsx102.ccr.corp.intel.com>


On 01/05/15 03:00, Ouyang, Changchun wrote:
>
>> -----Original Message-----
>> From: Vlad Zolotarov [mailto:vladz@cloudius-systems.com]
>> Sent: Sunday, January 4, 2015 5:46 PM
>> To: Ouyang, Changchun; dev@dpdk.org
>> Subject: Re: [dpdk-dev] [PATCH v4 4/6] ether: Check VMDq RSS mode
>>
>>
>> On 01/04/15 10:58, Ouyang, Changchun wrote:
>>>> -----Original Message-----
>>>> From: Vlad Zolotarov [mailto:vladz@cloudius-systems.com]
>>>> Sent: Sunday, January 4, 2015 4:45 PM
>>>> To: Ouyang, Changchun; dev@dpdk.org
>>>> Subject: Re: [dpdk-dev] [PATCH v4 4/6] ether: Check VMDq RSS mode
>>>>
>>>>
>>>> On 01/04/15 09:18, Ouyang Changchun wrote:
>>>>> Check mq mode for VMDq RSS, handle it correctly instead of returning
>>>>> an error; Also remove the limitation of per pool queue number has
>>>>> max value of 1, because the per pool queue number could be 2 or 4 if
>>>>> it is VMDq RSS mode;
>>>>>
>>>>> The number of rxq specified in config will determine the mq mode for
>>>> VMDq RSS.
>>>>> Signed-off-by: Changchun Ouyang <changchun.ouyang@intel.com>
>>>>> ---
>>>>>     lib/librte_ether/rte_ethdev.c | 39
>>>> ++++++++++++++++++++++++++++++++++-----
>>>>>     1 file changed, 34 insertions(+), 5 deletions(-)
>>>>>
>>>>> diff --git a/lib/librte_ether/rte_ethdev.c
>>>>> b/lib/librte_ether/rte_ethdev.c index 95f2ceb..59ff325 100644
>>>>> --- a/lib/librte_ether/rte_ethdev.c
>>>>> +++ b/lib/librte_ether/rte_ethdev.c
>>>>> @@ -510,8 +510,7 @@ rte_eth_dev_check_mq_mode(uint8_t port_id,
>>>>> uint16_t nb_rx_q, uint16_t nb_tx_q,
>>>>>
>>>>>     	if (RTE_ETH_DEV_SRIOV(dev).active != 0) {
>>>>>     		/* check multi-queue mode */
>>>>> -		if ((dev_conf->rxmode.mq_mode == ETH_MQ_RX_RSS) ||
>>>>> -		    (dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) ||
>>>>> +		if ((dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB) ||
>>>>>     		    (dev_conf->rxmode.mq_mode == ETH_MQ_RX_DCB_RSS)
>>>> ||
>>>>>     		    (dev_conf->txmode.mq_mode == ETH_MQ_TX_DCB)) {
>>>>>     			/* SRIOV only works in VMDq enable mode */ @@ -
>>>> 525,7 +524,6 @@
>>>>> rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q,
>>>> uint16_t nb_tx_q,
>>>>>     		}
>>>>>
>>>>>     		switch (dev_conf->rxmode.mq_mode) {
>>>>> -		case ETH_MQ_RX_VMDQ_RSS:
>>>>>     		case ETH_MQ_RX_VMDQ_DCB:
>>>>>     		case ETH_MQ_RX_VMDQ_DCB_RSS:
>>>>>     			/* DCB/RSS VMDQ in SRIOV mode, not implement
>>>> yet */ @@ -534,6
>>>>> +532,39 @@ rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t
>>>> nb_rx_q, uint16_t nb_tx_q,
>>>>>     					"unsupported VMDQ mq_mode
>>>> rx %u\n",
>>>>>     					port_id, dev_conf-
>>>>> rxmode.mq_mode);
>>>>>     			return (-EINVAL);
>>>>> +		case ETH_MQ_RX_RSS:
>>>>> +			PMD_DEBUG_TRACE("ethdev port_id=%" PRIu8
>>>>> +					" SRIOV active, "
>>>>> +					"Rx mq mode is changed from:"
>>>>> +					"mq_mode %u into VMDQ
>>>> mq_mode %u\n",
>>>>> +					port_id,
>>>>> +					dev_conf->rxmode.mq_mode,
>>>>> +					dev->data-
>>>>> dev_conf.rxmode.mq_mode);
>>>>> +		case ETH_MQ_RX_VMDQ_RSS:
>>>>> +			dev->data->dev_conf.rxmode.mq_mode =
>>>> ETH_MQ_RX_VMDQ_RSS;
>>>>> +			if (nb_rx_q <
>>>> RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool) {
>> Missed that before: shouldn't it be "<=" here?
> Agree with you, need <= here, I will fix it in v5
>
>>>>> +				switch (nb_rx_q) {
>>>>> +				case 1:
>>>>> +				case 2:
>>>>> +					RTE_ETH_DEV_SRIOV(dev).active =
>>>>> +						ETH_64_POOLS;
>>>>> +					break;
>>>>> +				case 4:
>>>>> +					RTE_ETH_DEV_SRIOV(dev).active =
>>>>> +						ETH_32_POOLS;
>>>>> +					break;
>>>>> +				default:
>>>>> +					PMD_DEBUG_TRACE("ethdev
>>>> port_id=%d"
>>>>> +						" SRIOV active, "
>>>>> +						"queue number invalid\n",
>>>>> +						port_id);
>>>>> +					return -EINVAL;
>>>>> +				}
>>>>> +				RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool =
>>>> nb_rx_q;
>>>>> +				RTE_ETH_DEV_SRIOV(dev).def_pool_q_idx =
>>>>> +					dev->pci_dev->max_vfs * nb_rx_q;
>>>>> +			}
>>>> Don't u need to return an error in the "else" here?
>>> Actually it has such a check after these code snippet, and it does
>>> return error for the else case, Because it is original logic, I don't change any
>> code around it, so it doesn't display here, you can check the codes.
>>
>> I see. The flow is a bit confusing since the switch-case above will end up
>> executing a "default" clause which will set
>> RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool to 1 and then the error message
>> in the check u are referring will be a bit confusing.
> ' set RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool to 1 ' is original code, which is for vmdq only case, or single queue case.
> It is in default clause, and not in VMDQ_RSS clause.
> I think my new code is ok here.

The original code is ok and your current code will work. The only 
problem with your new code is that in case on an error like I've 
described above the error message will be confusing.

>
>>> Thanks
>>> Changchun
>>>
>>>

  reply	other threads:[~2015-01-05 10:10 UTC|newest]

Thread overview: 144+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-15  2:56 [dpdk-dev] [PATCH 0/6] Enable VF RSS for Niantic Ouyang Changchun
2014-12-15  2:57 ` [dpdk-dev] [PATCH 1/6] ixgbe: Code cleanup Ouyang Changchun
2014-12-15  2:57 ` [dpdk-dev] [PATCH 2/6] ixgbe: Negotiate VF API version Ouyang Changchun
2014-12-15  2:57 ` [dpdk-dev] [PATCH 3/6] ixgbe: Get VF queue number Ouyang Changchun
2014-12-15  2:57 ` [dpdk-dev] [PATCH 4/6] ether: Check VMDq RSS mode Ouyang Changchun
2014-12-15  2:57 ` [dpdk-dev] [PATCH 5/6] ixgbe: Config VF RSS Ouyang Changchun
2014-12-15  2:57 ` [dpdk-dev] [PATCH 6/6] testpmd: Set Rx VMDq RSS mode Ouyang Changchun
2014-12-15 10:55 ` [dpdk-dev] [PATCH 0/6] Enable VF RSS for Niantic Bruce Richardson
2014-12-16  0:58   ` Ouyang, Changchun
2014-12-24  2:56 ` [dpdk-dev] [PATCH v2 " Ouyang Changchun
2014-12-24  2:56   ` [dpdk-dev] [PATCH v2 1/6] ixgbe: Code cleanup Ouyang Changchun
2014-12-24  3:08     ` Zhang, Helin
2014-12-24  3:22       ` Ouyang, Changchun
2014-12-24  3:41         ` Zhang, Helin
2014-12-24  3:50           ` Ouyang, Changchun
2014-12-24  3:53             ` Zhang, Helin
2014-12-24  4:46               ` Ouyang, Changchun
2014-12-24  2:56   ` [dpdk-dev] [PATCH v2 2/6] ixgbe: Negotiate VF API version Ouyang Changchun
2014-12-24  2:56   ` [dpdk-dev] [PATCH v2 3/6] ixgbe: Get VF queue number Ouyang Changchun
2014-12-24  2:56   ` [dpdk-dev] [PATCH v2 4/6] ether: Check VMDq RSS mode Ouyang Changchun
2014-12-24  2:56   ` [dpdk-dev] [PATCH v2 5/6] ixgbe: Config VF RSS Ouyang Changchun
2014-12-24  2:56   ` [dpdk-dev] [PATCH v2 6/6] testpmd: Set Rx VMDq RSS mode Ouyang Changchun
2014-12-24  5:22   ` [dpdk-dev] [PATCH v3 0/6] Enable VF RSS for Niantic Ouyang Changchun
2014-12-24  5:22     ` [dpdk-dev] [PATCH v3 1/6] ixgbe: Code cleanup Ouyang Changchun
2014-12-24  5:23     ` [dpdk-dev] [PATCH v3 2/6] ixgbe: Negotiate VF API version Ouyang Changchun
2014-12-24  5:23     ` [dpdk-dev] [PATCH v3 3/6] ixgbe: Get VF queue number Ouyang Changchun
2014-12-24  5:23     ` [dpdk-dev] [PATCH v3 4/6] ether: Check VMDq RSS mode Ouyang Changchun
2014-12-24  5:23     ` [dpdk-dev] [PATCH v3 5/6] ixgbe: Config VF RSS Ouyang Changchun
2014-12-24 10:39       ` Vlad Zolotarov
2014-12-25  2:14         ` Ouyang, Changchun
2014-12-25 13:13           ` Vlad Zolotarov
2014-12-26  2:07             ` Ouyang, Changchun
2014-12-25  2:43         ` Ouyang, Changchun
2014-12-25 13:20           ` Vlad Zolotarov
2014-12-26  1:52             ` Ouyang, Changchun
2014-12-26  6:49               ` Vladislav Zolotarov
2014-12-26  7:26                 ` Ouyang, Changchun
2014-12-26  7:37                   ` Vladislav Zolotarov
2014-12-26  8:45                     ` Ouyang, Changchun
2014-12-28 10:14                       ` Vlad Zolotarov
2015-01-05 10:29               ` Bruce Richardson
2015-01-06  1:00                 ` Ouyang, Changchun
2014-12-25 13:38           ` Vlad Zolotarov
2014-12-26  1:26             ` Ouyang, Changchun
2015-01-04  2:10       ` Liang, Cunming
2015-01-04  6:25         ` Ouyang, Changchun
2014-12-24  5:23     ` [dpdk-dev] [PATCH v3 6/6] testpmd: Set Rx VMDq RSS mode Ouyang Changchun
2014-12-24  9:59     ` [dpdk-dev] [PATCH v3 0/6] Enable VF RSS for Niantic Vlad Zolotarov
2014-12-25  1:46       ` Ouyang, Changchun
2015-01-05 10:38         ` Bruce Richardson
2015-01-05 13:02           ` Vlad Zolotarov
2015-01-06  1:11             ` Ouyang, Changchun
2015-01-06 11:18               ` Vlad Zolotarov
2015-01-06 11:18               ` Vlad Zolotarov
2015-01-06  1:04           ` Ouyang, Changchun
2014-12-24 10:49     ` Vlad Zolotarov
2014-12-25  2:26       ` Ouyang, Changchun
2014-12-25 12:46         ` Vlad Zolotarov
2014-12-26  2:37           ` Ouyang, Changchun
     [not found]             ` <CAOYyTHbrB-VinN5ZEd1tYTnS7_GhCT1jiHiZzNKkQUEJ1rG79w@mail.gmail.com>
2014-12-26  5:16               ` Vladislav Zolotarov
2014-12-26  5:25                 ` Ouyang, Changchun
2015-01-04  7:18     ` [dpdk-dev] [PATCH v4 " Ouyang Changchun
2015-01-04  7:18       ` [dpdk-dev] [PATCH v4 1/6] ixgbe: Code cleanup Ouyang Changchun
2015-01-04  8:22         ` Vlad Zolotarov
2015-01-04  7:18       ` [dpdk-dev] [PATCH v4 2/6] ixgbe: Negotiate VF API version Ouyang Changchun
2015-01-04  8:26         ` Vlad Zolotarov
2015-01-04  8:30           ` Vlad Zolotarov
2015-01-04  8:37             ` Ouyang, Changchun
2015-01-04  8:40               ` Vlad Zolotarov
2015-01-04  8:51                 ` Ouyang, Changchun
2015-01-04  9:37                   ` Vlad Zolotarov
2015-01-04  7:18       ` [dpdk-dev] [PATCH v4 3/6] ixgbe: Get VF queue number Ouyang Changchun
2015-01-04  8:38         ` Vlad Zolotarov
2015-01-05  2:59           ` Ouyang, Changchun
2015-01-05 10:07             ` Vlad Zolotarov
2015-01-06  1:54               ` Ouyang, Changchun
2015-01-06 11:26                 ` Vlad Zolotarov
2015-01-07  1:18                   ` Ouyang, Changchun
2015-01-04  7:18       ` [dpdk-dev] [PATCH v4 4/6] ether: Check VMDq RSS mode Ouyang Changchun
2015-01-04  8:45         ` Vlad Zolotarov
2015-01-04  8:58           ` Ouyang, Changchun
2015-01-04  9:45             ` Vlad Zolotarov
2015-01-05  1:00               ` Ouyang, Changchun
2015-01-05 10:09                 ` Vlad Zolotarov [this message]
2015-01-06  1:56                   ` Ouyang, Changchun
2015-01-06 19:56                     ` Vlad Zolotarov
2015-01-07  2:28                       ` Ouyang, Changchun
2015-01-04  7:18       ` [dpdk-dev] [PATCH v4 5/6] ixgbe: Config VF RSS Ouyang Changchun
2015-01-04  7:18       ` [dpdk-dev] [PATCH v4 6/6] testpmd: Set Rx VMDq RSS mode Ouyang Changchun
2015-01-04  8:49         ` Vlad Zolotarov
2015-01-04  9:01           ` Ouyang, Changchun
2015-01-04  9:46             ` Vlad Zolotarov
2015-01-05  2:38               ` Ouyang, Changchun
2015-01-05 10:12                 ` Vlad Zolotarov
2015-01-06  2:01                   ` Ouyang, Changchun
2015-01-06 12:53                     ` Vlad Zolotarov
2015-01-07  1:50                       ` Ouyang, Changchun
2015-01-07  6:32       ` [dpdk-dev] [PATCH v5 0/6] Enable VF RSS for Niantic Ouyang Changchun
2015-01-07  6:32         ` [dpdk-dev] [PATCH v5 1/6] ixgbe: Code cleanup Ouyang Changchun
2015-01-07  6:32         ` [dpdk-dev] [PATCH v5 2/6] ixgbe: Negotiate VF API version Ouyang Changchun
2015-01-07  6:32         ` [dpdk-dev] [PATCH v5 3/6] ixgbe: Get VF queue number Ouyang Changchun
2015-01-08  9:01           ` Vlad Zolotarov
2015-01-07  6:32         ` [dpdk-dev] [PATCH v5 4/6] ether: Check VMDq RSS mode Ouyang Changchun
2015-01-08  9:19           ` Vlad Zolotarov
2015-01-08 18:48             ` Vlad Zolotarov
2015-01-09  5:54               ` Ouyang, Changchun
2015-01-09 13:49                 ` Vlad Zolotarov
2015-01-12  3:41                   ` Ouyang, Changchun
2015-01-12 13:58                     ` Vlad Zolotarov
2015-01-13  1:50                       ` Ouyang, Changchun
2015-01-13  9:00                         ` Vlad Zolotarov
2015-01-14  0:44                           ` Ouyang, Changchun
2015-01-07  6:32         ` [dpdk-dev] [PATCH v5 5/6] ixgbe: Config VF RSS Ouyang Changchun
2015-01-08  9:43           ` Vlad Zolotarov
2015-01-09  6:07             ` Ouyang, Changchun
2015-01-09 14:01               ` Vlad Zolotarov
2015-01-12  5:11                 ` Ouyang, Changchun
2015-01-07  6:32         ` [dpdk-dev] [PATCH v5 6/6] testpmd: Set Rx VMDq RSS mode Ouyang Changchun
2015-01-08  9:46           ` Vlad Zolotarov
2015-01-08  9:56         ` [dpdk-dev] [PATCH v5 0/6] Enable VF RSS for Niantic Vlad Zolotarov
2015-01-18 21:58           ` Thomas Monjalon
2015-01-19  9:40             ` Vlad Zolotarov
2015-01-12  5:59         ` [dpdk-dev] [PATCH v6 " Ouyang Changchun
2015-01-12  5:59           ` [dpdk-dev] [PATCH v6 1/6] ixgbe: Code cleanup Ouyang Changchun
2015-01-12  5:59           ` [dpdk-dev] [PATCH v6 2/6] ixgbe: Negotiate VF API version Ouyang Changchun
2015-01-12  5:59           ` [dpdk-dev] [PATCH v6 3/6] ixgbe: Get VF queue number Ouyang Changchun
2015-01-19  9:13             ` Wodkowski, PawelX
2015-01-20  0:54               ` Ouyang, Changchun
2015-01-12  5:59           ` [dpdk-dev] [PATCH v6 4/6] ether: Check VMDq RSS mode Ouyang Changchun
2015-01-12 14:06             ` Vlad Zolotarov
2015-01-18 22:04             ` Thomas Monjalon
2015-01-19 10:31             ` Wodkowski, PawelX
2015-01-20  1:03               ` Ouyang, Changchun
2015-01-12  5:59           ` [dpdk-dev] [PATCH v6 5/6] ixgbe: Config VF RSS Ouyang Changchun
2015-01-12 14:04             ` Vlad Zolotarov
2015-01-20  9:35             ` Wodkowski, PawelX
2015-01-21  2:43               ` Ouyang, Changchun
2015-01-21  8:44                 ` Wodkowski, PawelX
2015-01-22 12:59                   ` Vlad Zolotarov
2015-01-22 13:19                     ` Wodkowski, PawelX
2015-01-12  5:59           ` [dpdk-dev] [PATCH v6 6/6] testpmd: Set Rx VMDq RSS mode Ouyang Changchun
2015-01-12 14:05             ` Vlad Zolotarov
2015-01-18 22:24           ` [dpdk-dev] [PATCH v6 0/6] Enable VF RSS for Niantic Thomas Monjalon
2015-01-19  4:51             ` Ouyang, Changchun

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