From: "Ouyang, Changchun" <changchun.ouyang@intel.com>
To: Vlad Zolotarov <vladz@cloudius-systems.com>,
"dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v5 4/6] ether: Check VMDq RSS mode
Date: Fri, 9 Jan 2015 05:54:05 +0000 [thread overview]
Message-ID: <F52918179C57134FAEC9EA62FA2F96251195471C@shsmsx102.ccr.corp.intel.com> (raw)
In-Reply-To: <54AED114.5070907@cloudius-systems.com>
> -----Original Message-----
> From: Vlad Zolotarov [mailto:vladz@cloudius-systems.com]
> Sent: Friday, January 9, 2015 2:49 AM
> To: Ouyang, Changchun; dev@dpdk.org
> Subject: Re: [dpdk-dev] [PATCH v5 4/6] ether: Check VMDq RSS mode
>
>
> 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.
>
I search code in this function, only one place has
" if (RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool > 1)
RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool = 1;"
The only place is default branch, which is for rx_none, or vmdq_only mode,
We don't need remove this, as it should assign as 1 because it did use 1 queue per pool.
next prev parent reply other threads:[~2015-01-09 5:54 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
2015-01-09 5:54 ` Ouyang, Changchun [this message]
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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