From: "Li, Miao" <miao.li@intel.com>
To: "Xia, Chenbo" <chenbo.xia@intel.com>, "dev@dpdk.org" <dev@dpdk.org>
Cc: "maxime.coquelin@redhat.com" <maxime.coquelin@redhat.com>
Subject: Re: [dpdk-dev] [PATCH 1/5] net/virtio: implement rte_power_monitor API
Date: Fri, 17 Sep 2021 06:40:36 +0000 [thread overview]
Message-ID: <CO1PR11MB4900279CF89DD652C23B4DD2EEDD9@CO1PR11MB4900.namprd11.prod.outlook.com> (raw)
In-Reply-To: <MN2PR11MB4063CAEF716458A37547BDAB9CDB9@MN2PR11MB4063.namprd11.prod.outlook.com>
Hi chenbo
> -----Original Message-----
> From: Xia, Chenbo <chenbo.xia@intel.com>
> Sent: Wednesday, September 15, 2021 4:45 PM
> To: Li, Miao <miao.li@intel.com>; dev@dpdk.org
> Cc: maxime.coquelin@redhat.com
> Subject: RE: [PATCH 1/5] net/virtio: implement rte_power_monitor API
>
> Hi Miao,
>
> > -----Original Message-----
> > From: Li, Miao <miao.li@intel.com>
> > Sent: Friday, September 10, 2021 9:06 PM
> > To: dev@dpdk.org
> > Cc: Xia, Chenbo <chenbo.xia@intel.com>; maxime.coquelin@redhat.com;
> > Li, Miao <miao.li@intel.com>
> > Subject: [PATCH 1/5] net/virtio: implement rte_power_monitor API
> >
> > This patch implements rte_power_monitor API in virtio PMD to reduce
> > power consumption when no packet come in. According to current
> > semantics of power monitor, this commit adds a callback function to
> > decide whether aborts the sleep by checking current value against the
> > expected value and virtio_get_monitor_addr to provide address to
> > monitor. When no packet come in, the value of address will not be
> > changed and the running core will sleep. Once packets arrive, the
> > value of address will be changed and the running core will wakeup.
> >
> > Signed-off-by: Miao Li <miao.li@intel.com>
> > ---
> > drivers/net/virtio/virtio_ethdev.c | 57
> > ++++++++++++++++++++++++++++++
> > 1 file changed, 57 insertions(+)
> >
> > diff --git a/drivers/net/virtio/virtio_ethdev.c
> > b/drivers/net/virtio/virtio_ethdev.c
> > index e58085a2c9..4ce49936f5 100644
> > --- a/drivers/net/virtio/virtio_ethdev.c
> > +++ b/drivers/net/virtio/virtio_ethdev.c
> > @@ -73,6 +73,8 @@ static int virtio_mac_addr_set(struct rte_eth_dev *dev,
> > struct rte_ether_addr *mac_addr);
> >
> > static int virtio_intr_disable(struct rte_eth_dev *dev);
> > +static int virtio_get_monitor_addr(void *rx_queue,
> > + struct rte_power_monitor_cond *pmc);
> >
> > static int virtio_dev_queue_stats_mapping_set(
> > struct rte_eth_dev *eth_dev,
> > @@ -975,6 +977,7 @@ static const struct eth_dev_ops virtio_eth_dev_ops = {
> > .mac_addr_add = virtio_mac_addr_add,
> > .mac_addr_remove = virtio_mac_addr_remove,
> > .mac_addr_set = virtio_mac_addr_set,
> > + .get_monitor_addr = virtio_get_monitor_addr,
> > };
> >
> > /*
> > @@ -1306,6 +1309,60 @@ virtio_mac_addr_set(struct rte_eth_dev *dev,
> > struct rte_ether_addr *mac_addr)
> > return 0;
> > }
> >
> > +#define CLB_VAL_IDX 0
> > +#define CLB_MSK_IDX 1
> > +static int
> > +virtio_packed_monitor_callback(const uint64_t value,
> > + const uint64_t opaque[RTE_POWER_MONITOR_OPAQUE_SZ])
> > +{
> > + const uint64_t m = opaque[CLB_MSK_IDX];
> > + const uint64_t v = opaque[CLB_VAL_IDX];
> > +
> > + return (value & m) == v ? -1 : 0;
> > +}
> > +
> > +static int
> > +virtio_split_monitor_callback(const uint64_t value,
> > + const uint64_t opaque[RTE_POWER_MONITOR_OPAQUE_SZ])
> > +{
> > + const uint64_t m = opaque[CLB_MSK_IDX];
> > + const uint64_t v = opaque[CLB_VAL_IDX];
> > +
> > + return (value & m) == v ? 0 : -1;
> > +}
> > +
> > +static int
> > +virtio_get_monitor_addr(void *rx_queue, struct rte_power_monitor_cond
> > +*pmc) {
> > + struct virtnet_rx *rxvq = rx_queue;
> > + struct virtqueue *vq = virtnet_rxq_to_vq(rxvq);
> > + struct virtio_hw *hw = vq->hw;
> > + if (vq == NULL)
> > + return -EINVAL;
> > + if (virtio_with_packed_queue(hw)) {
> > + struct vring_packed_desc *desc;
> > + desc = vq->vq_packed.ring.desc;
> > + pmc->addr = &desc[vq->vq_used_cons_idx].flags;
> > + if (vq->vq_packed.used_wrap_counter)
> > + pmc->opaque[CLB_VAL_IDX] =
> > +
> VRING_PACKED_DESC_F_AVAIL_USED;
> > + else
> > + pmc->opaque[CLB_VAL_IDX] = 0;
> > + pmc->opaque[CLB_MSK_IDX] =
> VRING_PACKED_DESC_F_AVAIL_USED;
> > + pmc->fn = virtio_packed_monitor_callback;
> > + pmc->size = sizeof(uint16_t);
>
> I suggest to use sizeof(desc[vq->vq_used_cons_idx].flags) or sizeof(desc->flags)
> in case the flag type changes.
Thanks for your suggestion. I will fix it in the next version.
>
> > + } else {
> > + pmc->addr = &vq->vq_split.ring.used->idx;
> > + pmc->opaque[CLB_VAL_IDX] = vq->vq_used_cons_idx
> > + & (vq->vq_nentries - 1);
> > + pmc->opaque[CLB_MSK_IDX] = vq->vq_nentries - 1;
> > + pmc->fn = virtio_split_monitor_callback;
> > + pmc->size = sizeof(uint16_t);
>
> Same here.
I will fix it in the next version, too.
Thanks,
Miao
>
> Thanks,
> Chenbo
>
> > + }
> > +
> > + return 0;
> > +}
> > +
> > static int
> > virtio_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int
> > on) {
> > --
> > 2.25.1
next prev parent reply other threads:[~2021-09-17 6:40 UTC|newest]
Thread overview: 99+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-10 13:05 [dpdk-dev] [PATCH 0/5] CPU Enabling: Implement rte_power_monitor API in virtio/vhost PMD Miao Li
2021-09-10 13:05 ` [dpdk-dev] [PATCH 1/5] net/virtio: implement rte_power_monitor API Miao Li
2021-09-15 8:45 ` Xia, Chenbo
2021-09-17 6:40 ` Li, Miao [this message]
2021-09-10 13:05 ` [dpdk-dev] [PATCH 2/5] lib/vhost: " Miao Li
2021-09-15 8:51 ` Xia, Chenbo
2021-09-17 6:51 ` Li, Miao
2021-09-10 13:05 ` [dpdk-dev] [PATCH 3/5] net/vhost: " Miao Li
2021-09-10 13:05 ` [dpdk-dev] [PATCH 4/5] lib/power: modify return of queue_stopped Miao Li
2021-09-10 13:15 ` Burakov, Anatoly
2021-09-10 13:05 ` [dpdk-dev] [PATCH 5/5] examples/l3fwd-power: support virtio/vhost Miao Li
2021-09-10 7:24 ` Maxime Coquelin
2021-09-10 8:33 ` Li, Miao
2021-09-10 8:50 ` David Marchand
2021-09-13 1:41 ` Li, Miao
2021-09-18 13:22 ` [dpdk-dev] [PATCH 0/5] Implement rte_power_monitor API in virtio/vhost PMD Miao Li
2021-09-18 13:22 ` [dpdk-dev] [PATCH 1/5] net/virtio: implement rte_power_monitor API Miao Li
2021-09-18 13:22 ` [dpdk-dev] [PATCH 2/5] vhost: " Miao Li
2021-09-18 13:22 ` [dpdk-dev] [PATCH 3/5] net/vhost: " Miao Li
2021-09-18 13:22 ` [dpdk-dev] [PATCH 4/5] power: modify return of queue_stopped Miao Li
2021-09-18 13:22 ` [dpdk-dev] [PATCH 5/5] examples/l3fwd-power: support virtio/vhost Miao Li
2021-09-24 10:23 ` [dpdk-dev] [PATCH v3 0/5] Implement rte_power_monitor API in virtio/vhost PMD Miao Li
2021-09-24 10:23 ` [dpdk-dev] [PATCH v3 1/5] net/virtio: implement rte_power_monitor API Miao Li
2021-09-29 2:34 ` Xia, Chenbo
2021-09-24 10:23 ` [dpdk-dev] [PATCH v3 2/5] vhost: " Miao Li
2021-09-29 3:01 ` Xia, Chenbo
2021-10-11 5:16 ` Li, Miao
2021-09-24 10:23 ` [dpdk-dev] [PATCH v3 3/5] net/vhost: " Miao Li
2021-09-24 10:23 ` [dpdk-dev] [PATCH v3 4/5] power: modify return of queue_stopped Miao Li
2021-09-29 3:03 ` Xia, Chenbo
2021-10-11 5:18 ` Li, Miao
2021-09-24 10:23 ` [dpdk-dev] [PATCH v3 5/5] examples/l3fwd-power: support virtio/vhost Miao Li
2021-09-29 6:53 ` Xia, Chenbo
2021-10-11 5:22 ` Li, Miao
2021-10-12 14:22 ` [dpdk-dev] [PATCH v4 0/5] Implement rte_power_monitor API in virtio/vhost PMD Miao Li
2021-10-12 14:22 ` [dpdk-dev] [PATCH v4 1/5] net/virtio: implement rte_power_monitor API Miao Li
2021-10-12 14:22 ` [dpdk-dev] [PATCH v4 2/5] vhost: " Miao Li
2021-10-12 14:22 ` [dpdk-dev] [PATCH v4 3/5] net/vhost: " Miao Li
2021-10-12 14:22 ` [dpdk-dev] [PATCH v4 4/5] power: modify return of queue_stopped Miao Li
2021-10-12 14:22 ` [dpdk-dev] [PATCH v4 5/5] examples/l3fwd-power: support virtio/vhost Miao Li
2021-10-15 15:12 ` [dpdk-dev] [PATCH v5 0/5] Implement rte_power_monitor API in virtio/vhost PMD Miao Li
2021-10-15 15:12 ` [dpdk-dev] [PATCH v5 1/5] net/virtio: implement rte_power_monitor API Miao Li
2021-10-15 15:12 ` [dpdk-dev] [PATCH v5 2/5] vhost: " Miao Li
2021-10-15 7:38 ` Xia, Chenbo
2021-10-15 8:47 ` Li, Miao
2021-10-15 15:12 ` [dpdk-dev] [PATCH v5 3/5] net/vhost: " Miao Li
2021-10-15 7:39 ` Xia, Chenbo
2021-10-15 8:49 ` Li, Miao
2021-10-15 15:12 ` [dpdk-dev] [PATCH v5 4/5] power: modify return of queue_stopped Miao Li
2021-10-15 7:47 ` Xia, Chenbo
2021-10-15 8:50 ` Li, Miao
2021-10-15 15:12 ` [dpdk-dev] [PATCH v5 5/5] examples/l3fwd-power: support virtio/vhost Miao Li
2021-10-15 8:13 ` Xia, Chenbo
2021-10-15 8:51 ` Li, Miao
2021-10-15 17:09 ` [dpdk-dev] [PATCH v6 0/5] Implement rte_power_monitor API in virtio/vhost PMD Miao Li
2021-10-15 12:57 ` Maxime Coquelin
2021-10-18 1:54 ` Li, Miao
2021-10-15 17:09 ` [dpdk-dev] [PATCH v6 1/5] net/virtio: implement rte_power_monitor API Miao Li
2021-10-15 17:09 ` [dpdk-dev] [PATCH v6 2/5] vhost: " Miao Li
2021-10-15 17:09 ` [dpdk-dev] [PATCH v6 3/5] net/vhost: " Miao Li
2021-10-15 17:09 ` [dpdk-dev] [PATCH v6 4/5] power: modify return of queue_stopped Miao Li
2021-10-15 17:09 ` [dpdk-dev] [PATCH v6 5/5] examples/l3fwd-power: support virtio/vhost Miao Li
2021-10-18 14:16 ` [dpdk-dev] [PATCH v7 0/5] Implement rte_power_monitor API in virtio/vhost PMD Miao Li
2021-10-18 14:16 ` [dpdk-dev] [PATCH v7 1/5] net/virtio: implement rte_power_monitor API Miao Li
2021-10-21 16:50 ` Ferruh Yigit
2021-10-22 8:22 ` Li, Miao
2021-10-21 16:59 ` Ferruh Yigit
2021-10-22 8:28 ` Li, Miao
2021-10-22 8:51 ` Li, Miao
2021-10-22 8:59 ` Ferruh Yigit
2021-10-22 9:02 ` Xia, Chenbo
2021-10-22 13:41 ` David Hunt
2021-10-18 14:16 ` [dpdk-dev] [PATCH v7 2/5] vhost: " Miao Li
2021-10-19 4:38 ` Xia, Chenbo
2021-10-22 12:34 ` David Hunt
2021-10-18 14:16 ` [dpdk-dev] [PATCH v7 3/5] net/vhost: " Miao Li
2021-10-19 4:39 ` Xia, Chenbo
2021-10-22 12:01 ` David Hunt
2021-10-18 14:16 ` [dpdk-dev] [PATCH v7 4/5] power: modify return of queue_stopped Miao Li
2021-10-21 16:48 ` Ferruh Yigit
2021-10-22 8:20 ` Li, Miao
2021-10-22 9:01 ` Ferruh Yigit
2021-10-22 9:05 ` Li, Miao
2021-10-22 11:54 ` David Hunt
2021-10-18 14:16 ` [dpdk-dev] [PATCH v7 5/5] examples/l3fwd-power: support virtio/vhost Miao Li
2021-10-19 4:39 ` Xia, Chenbo
2021-10-22 11:50 ` David Hunt
2021-10-21 16:58 ` Ferruh Yigit
2021-10-21 12:35 ` [dpdk-dev] [PATCH v7 0/5] Implement rte_power_monitor API in virtio/vhost PMD Maxime Coquelin
2021-10-25 14:47 ` [dpdk-dev] [PATCH v8 0/5] Support power monitor " Miao Li
2021-10-25 7:06 ` Xia, Chenbo
2021-10-28 8:03 ` Maxime Coquelin
2021-10-25 14:47 ` [dpdk-dev] [PATCH v8 1/5] net/virtio: support power monitor Miao Li
2021-10-25 14:47 ` [dpdk-dev] [PATCH v8 2/5] vhost: add power monitor support API Miao Li
2021-10-25 14:47 ` [dpdk-dev] [PATCH v8 3/5] net/vhost: support power monitor Miao Li
2021-10-25 14:47 ` [dpdk-dev] [PATCH v8 4/5] power: modify return of queue_stopped Miao Li
2021-10-25 14:47 ` [dpdk-dev] [PATCH v8 5/5] examples/l3fwd-power: support virtio/vhost Miao Li
2021-10-29 19:09 ` Ferruh Yigit
2021-10-29 10:34 ` [dpdk-dev] [PATCH v8 0/5] Support power monitor in virtio/vhost PMD Maxime Coquelin
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