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From: Vlad Zolotarov <vladz@cloudius-systems.com>
To: Ouyang Changchun <changchun.ouyang@intel.com>, dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v5 4/6] ether: Check VMDq RSS mode
Date: Thu, 08 Jan 2015 20:48:52 +0200	[thread overview]
Message-ID: <54AED114.5070907@cloudius-systems.com> (raw)
In-Reply-To: <54AE4BA2.9040802@cloudius-systems.com>


On 01/08/15 11:19, Vlad Zolotarov wrote:
>
> On 01/07/15 08:32, 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>
>>
>> changes in v5:
>>    - Fix '<' issue, it should be '<=' to test rxq number;
>>    - Extract a function to remove the embeded switch-case statement.
>>
>> ---
>>   lib/librte_ether/rte_ethdev.c | 50 
>> ++++++++++++++++++++++++++++++++++++++-----
>>   1 file changed, 45 insertions(+), 5 deletions(-)
>>
>> diff --git a/lib/librte_ether/rte_ethdev.c 
>> b/lib/librte_ether/rte_ethdev.c
>> index 95f2ceb..8363e26 100644
>> --- a/lib/librte_ether/rte_ethdev.c
>> +++ b/lib/librte_ether/rte_ethdev.c
>> @@ -503,6 +503,31 @@ rte_eth_dev_tx_queue_config(struct rte_eth_dev 
>> *dev, uint16_t nb_queues)
>>   }
>>     static int
>> +rte_eth_dev_check_vf_rss_rxq_num(uint8_t port_id, uint16_t nb_rx_q)
>> +{
>> +    struct rte_eth_dev *dev = &rte_eth_devices[port_id];
>> +    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:
>> +        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;
>> +
>> +    return 0;
>> +}
>> +
>> +static int
>>   rte_eth_dev_check_mq_mode(uint8_t port_id, uint16_t nb_rx_q, 
>> uint16_t nb_tx_q,
>>                 const struct rte_eth_conf *dev_conf)
>>   {
>> @@ -510,8 +535,7 @@ 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 +549,6 @@ 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 +557,25 @@ 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)
>> +                if (rte_eth_dev_check_vf_rss_rxq_num(port_id, 
>> nb_rx_q) != 0) {
>> +                    PMD_DEBUG_TRACE("ethdev port_id=%d"
>> +                        " SRIOV active, invalid queue"
>> +                        " number for VMDQ RSS\n",
>> +                        port_id);
>
> Some nitpicking here: I'd add the allowed values descriptions to the 
> error message. Something like: "invalid queue number for VMDQ RSS. 
> Allowed values are 1, 2 or 4\n".
>
>> +                    return -EINVAL;
>> +                }
>> +            break;
>>           default: /* ETH_MQ_RX_VMDQ_ONLY or ETH_MQ_RX_NONE */
>>               /* if nothing mq mode configure, use default scheme */
>>               dev->data->dev_conf.rxmode.mq_mode = ETH_MQ_RX_VMDQ_ONLY;
>> @@ -553,8 +595,6 @@ rte_eth_dev_check_mq_mode(uint8_t port_id, 
>> uint16_t nb_rx_q, uint16_t nb_tx_q,
>>           default: /* ETH_MQ_TX_VMDQ_ONLY or ETH_MQ_TX_NONE */
>>               /* if nothing mq mode configure, use default scheme */
>>               dev->data->dev_conf.txmode.mq_mode = ETH_MQ_TX_VMDQ_ONLY;
>> -            if (RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool > 1)
>> -                RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool = 1;
>
> I'm not sure u may just remove it. These lines originally belong to a 
> different flow. Are u sure u can remove them like that? What if the 
> mq_mode is ETH_MQ_RX_NONE and nb_q_per_pool has been initialized to 4 
> or 8 in ixgbe_pf_host_init()?

I misread the patch - these lines belong to the txmode.mq_mode switch 
case. I think it's ok to remove these really strange lines here. And 
when I look at it i think for the similar reasons the similar lines 
should be removed in the Rx case too: consider non-RSS case with MQ DCB 
Tx configuration.

>
>>               break;
>>           }
>

  reply	other threads:[~2015-01-08 18:48 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
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 [this message]
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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