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 v5 2/5] vhost: implement rte_power_monitor API
Date: Fri, 15 Oct 2021 08:47:45 +0000 [thread overview]
Message-ID: <CO1PR11MB49008B066C63561D1F5B71E5EEB99@CO1PR11MB4900.namprd11.prod.outlook.com> (raw)
In-Reply-To: <DM6PR11MB34995097F3AFFB790EFA1A349CB99@DM6PR11MB3499.namprd11.prod.outlook.com>
Hi Chenbo,
> -----Original Message-----
> From: Xia, Chenbo <chenbo.xia@intel.com>
> Sent: Friday, October 15, 2021 3:38 PM
> To: Li, Miao <miao.li@intel.com>; dev@dpdk.org
> Cc: maxime.coquelin@redhat.com
> Subject: RE: [PATCH v5 2/5] vhost: implement rte_power_monitor API
>
> Hi,
>
> > -----Original Message-----
> > From: Li, Miao <miao.li@intel.com>
> > Sent: Friday, October 15, 2021 11:12 PM
> > To: dev@dpdk.org
> > Cc: Xia, Chenbo <chenbo.xia@intel.com>; maxime.coquelin@redhat.com; Li,
> Miao
> > <miao.li@intel.com>
> > Subject: [PATCH v5 2/5] vhost: implement rte_power_monitor API
> >
> > This patch defines rte_vhost_power_monitor_cond which is used to pass
> > some information to vhost driver. The information is including the address
> > to monitor, the expected value, the mask to extract value read from 'addr',
> > the value size of monitor address, the match flag used to distinguish the
> > value used to match something or not match something. Vhost driver can use
> > these information to fill rte_power_monitor_cond.
> >
> > Signed-off-by: Miao Li <miao.li@intel.com>
> > ---
> > doc/guides/rel_notes/release_21_11.rst | 4 +++
> > lib/vhost/rte_vhost.h | 44 ++++++++++++++++++++++++++
> > lib/vhost/version.map | 3 ++
> > lib/vhost/vhost.c | 38 ++++++++++++++++++++++
> > 4 files changed, 89 insertions(+)
> >
> > diff --git a/doc/guides/rel_notes/release_21_11.rst
> > b/doc/guides/rel_notes/release_21_11.rst
> > index 27dc896703..ad6d256a55 100644
> > --- a/doc/guides/rel_notes/release_21_11.rst
> > +++ b/doc/guides/rel_notes/release_21_11.rst
> > @@ -72,6 +72,10 @@ New Features
> > Added macros ETH_RSS_IPV4_CHKSUM and ETH_RSS_L4_CHKSUM, now IPv4
> and
> > TCP/UDP/SCTP header checksum field can be used as input set for RSS.
> >
> > +* **Added power monitor API in vhost library.**
> > +
> > + Added an API to support power monitor in vhost library.
> > +
> > * **Updated virtio PMD.**
> >
> > Implement rte_power_monitor API in virtio PMD.
> > diff --git a/lib/vhost/rte_vhost.h b/lib/vhost/rte_vhost.h
> > index fd372d5259..42bda95e96 100644
> > --- a/lib/vhost/rte_vhost.h
> > +++ b/lib/vhost/rte_vhost.h
> > @@ -292,6 +292,33 @@ struct vhost_device_ops {
> > void *reserved[1]; /**< Reserved for future extension */
> > };
> >
> > +/**
> > + * Power monitor condition.
> > + */
> > +struct rte_vhost_power_monitor_cond {
> > + /**< Address to monitor for changes */
> > + volatile void *addr;
> > + /**< If the `mask` is non-zero, location pointed
> > + * to by `addr` will be read and masked, then
> > + * compared with this value.
> > + */
> > + uint64_t val;
> > + /**< 64-bit mask to extract value read from `addr` */
> > + uint64_t mask;
> > + /**< Data size (in bytes) that will be read from the
> > + * monitored memory location (`addr`). Can be 1, 2,
> > + * 4, or 8. Supplying any other value will result in
> > + * an error.
>
> 'Can be ...' part is not necessary, as this value is defined in vhost
> lib and currently only has two different values for packed or split.
I will remove it in the next version.
>
> > + */
> > + uint8_t size;
> > + /**< If 1, and masked value that read from 'addr' equals
> > + * 'val', the driver will skip core sleep. If 0, and
>
> 'will' -> 'should'. As it's a suggestion for vhost driver.
>
> > + * masked value that read from 'addr' does not equal 'val',
> > + * the driver will skip core sleep.
>
> Ditto.
I will modify them in the next version.
Thanks,
Miao
>
> Thanks,
> Chenbo
>
> > + */
> > + uint8_t match;
> > +};
> > +
> > /**
> > * Convert guest physical address to host virtual address
> > *
> > @@ -903,6 +930,23 @@ int rte_vhost_vring_call(int vid, uint16_t vring_idx);
> > */
> > uint32_t rte_vhost_rx_queue_count(int vid, uint16_t qid);
> >
> > +/**
> > + * Get power monitor address of the vhost device
> > + *
> > + * @param vid
> > + * vhost device ID
> > + * @param queue_id
> > + * vhost queue ID
> > + * @param pmc
> > + * power monitor condition
> > + * @return
> > + * 0 on success, -1 on failure
> > + */
> > +__rte_experimental
> > +int
> > +rte_vhost_get_monitor_addr(int vid, uint16_t queue_id,
> > + struct rte_vhost_power_monitor_cond *pmc);
> > +
> > /**
> > * Get log base and log size of the vhost device
> > *
> > diff --git a/lib/vhost/version.map b/lib/vhost/version.map
> > index 8ebde3f694..c8599ddb97 100644
> > --- a/lib/vhost/version.map
> > +++ b/lib/vhost/version.map
> > @@ -85,4 +85,7 @@ EXPERIMENTAL {
> > rte_vhost_async_channel_register_thread_unsafe;
> > rte_vhost_async_channel_unregister_thread_unsafe;
> > rte_vhost_clear_queue_thread_unsafe;
> > +
> > + # added in 21.11
> > + rte_vhost_get_monitor_addr;
> > };
> > diff --git a/lib/vhost/vhost.c b/lib/vhost/vhost.c
> > index 9540522dac..36c896c9e2 100644
> > --- a/lib/vhost/vhost.c
> > +++ b/lib/vhost/vhost.c
> > @@ -1889,5 +1889,43 @@ rte_vhost_async_get_inflight(int vid, uint16_t
> queue_id)
> > return ret;
> > }
> >
> > +int
> > +rte_vhost_get_monitor_addr(int vid, uint16_t queue_id,
> > + struct rte_vhost_power_monitor_cond *pmc)
> > +{
> > + struct virtio_net *dev = get_device(vid);
> > + struct vhost_virtqueue *vq;
> > +
> > + if (dev == NULL)
> > + return -1;
> > + if (queue_id >= VHOST_MAX_VRING)
> > + return -1;
> > +
> > + vq = dev->virtqueue[queue_id];
> > + if (vq == NULL)
> > + return -1;
> > +
> > + if (vq_is_packed(dev)) {
> > + struct vring_packed_desc *desc;
> > + desc = vq->desc_packed;
> > + pmc->addr = &desc[vq->last_avail_idx].flags;
> > + if (vq->avail_wrap_counter)
> > + pmc->val = VRING_DESC_F_AVAIL;
> > + else
> > + pmc->val = VRING_DESC_F_USED;
> > + pmc->mask = VRING_DESC_F_AVAIL | VRING_DESC_F_USED;
> > + pmc->size = sizeof(desc[vq->last_avail_idx].flags);
> > + pmc->match = 1;
> > + } else {
> > + pmc->addr = &vq->avail->idx;
> > + pmc->val = vq->last_avail_idx & (vq->size - 1);
> > + pmc->mask = vq->size - 1;
> > + pmc->size = sizeof(vq->avail->idx);
> > + pmc->match = 0;
> > + }
> > +
> > + return 0;
> > +}
> > +
> > RTE_LOG_REGISTER_SUFFIX(vhost_config_log_level, config, INFO);
> > RTE_LOG_REGISTER_SUFFIX(vhost_data_log_level, data, WARNING);
> > --
> > 2.25.1
next prev parent reply other threads:[~2021-10-15 8:47 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
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 [this message]
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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