* [dpdk-dev] [PATCH] net/vhost: fix xstats wrong after clearing stats
@ 2020-09-02 17:03 David Christensen
2020-09-11 7:44 ` Xia, Chenbo
2020-10-06 21:23 ` [dpdk-dev] [PATCH v2] " David Christensen
0 siblings, 2 replies; 11+ messages in thread
From: David Christensen @ 2020-09-02 17:03 UTC (permalink / raw)
To: maxime.coquelin, chenbo.xia, zhihong.wang, dev; +Cc: David Christensen
The PMD API allows stats and xstats values to be cleared separately.
This is a problem for the vhost PMD since some of the xstats values are
derived from existing stats values. For example:
testpmd> show port xstats all
...
tx_unicast_packets: 17562959
...
testpmd> clear port stats all
...
show port xstats all
...
tx_unicast_packets: 18446744073709551615
...
Modify the driver so that stats and xstats values are stored, updated,
and cleared separately.
Signed-off-by: David Christensen <drc@linux.vnet.ibm.com>
---
drivers/net/vhost/rte_eth_vhost.c | 54 ++++++++++++++++++-------------
1 file changed, 32 insertions(+), 22 deletions(-)
diff --git a/drivers/net/vhost/rte_eth_vhost.c b/drivers/net/vhost/rte_eth_vhost.c
index e55278af6..4e72cc2ca 100644
--- a/drivers/net/vhost/rte_eth_vhost.c
+++ b/drivers/net/vhost/rte_eth_vhost.c
@@ -73,6 +73,9 @@ enum vhost_xstats_pkts {
VHOST_BROADCAST_PKT,
VHOST_MULTICAST_PKT,
VHOST_UNICAST_PKT,
+ VHOST_PKT,
+ VHOST_BYTE,
+ VHOST_MISSED_PKT,
VHOST_ERRORS_PKT,
VHOST_ERRORS_FRAGMENTED,
VHOST_ERRORS_JABBER,
@@ -149,11 +152,11 @@ struct vhost_xstats_name_off {
/* [rx]_is prepended to the name string here */
static const struct vhost_xstats_name_off vhost_rxport_stat_strings[] = {
{"good_packets",
- offsetof(struct vhost_queue, stats.pkts)},
+ offsetof(struct vhost_queue, stats.xstats[VHOST_PKT])},
{"total_bytes",
- offsetof(struct vhost_queue, stats.bytes)},
+ offsetof(struct vhost_queue, stats.xstats[VHOST_BYTE])},
{"missed_pkts",
- offsetof(struct vhost_queue, stats.missed_pkts)},
+ offsetof(struct vhost_queue, stats.xstats[VHOST_MISSED_PKT])},
{"broadcast_packets",
offsetof(struct vhost_queue, stats.xstats[VHOST_BROADCAST_PKT])},
{"multicast_packets",
@@ -189,11 +192,11 @@ static const struct vhost_xstats_name_off vhost_rxport_stat_strings[] = {
/* [tx]_ is prepended to the name string here */
static const struct vhost_xstats_name_off vhost_txport_stat_strings[] = {
{"good_packets",
- offsetof(struct vhost_queue, stats.pkts)},
+ offsetof(struct vhost_queue, stats.xstats[VHOST_PKT])},
{"total_bytes",
- offsetof(struct vhost_queue, stats.bytes)},
+ offsetof(struct vhost_queue, stats.xstats[VHOST_BYTE])},
{"missed_pkts",
- offsetof(struct vhost_queue, stats.missed_pkts)},
+ offsetof(struct vhost_queue, stats.xstats[VHOST_MISSED_PKT])},
{"broadcast_packets",
offsetof(struct vhost_queue, stats.xstats[VHOST_BROADCAST_PKT])},
{"multicast_packets",
@@ -291,18 +294,11 @@ vhost_dev_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
vq = dev->data->rx_queues[i];
if (!vq)
continue;
- vq->stats.xstats[VHOST_UNICAST_PKT] = vq->stats.pkts
- - (vq->stats.xstats[VHOST_BROADCAST_PKT]
- + vq->stats.xstats[VHOST_MULTICAST_PKT]);
}
for (i = 0; i < dev->data->nb_tx_queues; i++) {
vq = dev->data->tx_queues[i];
if (!vq)
continue;
- vq->stats.xstats[VHOST_UNICAST_PKT] = vq->stats.pkts
- + vq->stats.missed_pkts
- - (vq->stats.xstats[VHOST_BROADCAST_PKT]
- + vq->stats.xstats[VHOST_MULTICAST_PKT]);
}
for (t = 0; t < VHOST_NB_XSTATS_RXPORT; t++) {
xstats[count].value = 0;
@@ -346,20 +342,27 @@ vhost_count_multicast_broadcast(struct vhost_queue *vq,
pstats->xstats[VHOST_BROADCAST_PKT]++;
else
pstats->xstats[VHOST_MULTICAST_PKT]++;
+ } else {
+ pstats->xstats[VHOST_UNICAST_PKT]++;
}
}
static void
-vhost_update_packet_xstats(struct vhost_queue *vq,
- struct rte_mbuf **bufs,
- uint16_t count)
+vhost_update_packet_xstats(struct vhost_queue *vq, struct rte_mbuf **bufs,
+ uint16_t count, uint64_t nb_bytes,
+ uint64_t nb_missed)
{
uint32_t pkt_len = 0;
uint64_t i = 0;
uint64_t index;
struct vhost_stats *pstats = &vq->stats;
+ pstats->xstats[VHOST_BYTE] += nb_bytes;
+ pstats->xstats[VHOST_MISSED_PKT] += nb_missed;
+ pstats->xstats[VHOST_UNICAST_PKT] += nb_missed;
+
for (i = 0; i < count ; i++) {
+ pstats->xstats[VHOST_PKT]++;
pkt_len = bufs[i]->pkt_len;
if (pkt_len == 64) {
pstats->xstats[VHOST_64_PKT]++;
@@ -385,6 +388,7 @@ eth_vhost_rx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
struct vhost_queue *r = q;
uint16_t i, nb_rx = 0;
uint16_t nb_receive = nb_bufs;
+ uint64_t nb_bytes = 0;
if (unlikely(rte_atomic32_read(&r->allow_queuing) == 0))
return 0;
@@ -419,10 +423,11 @@ eth_vhost_rx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
if (r->internal->vlan_strip)
rte_vlan_strip(bufs[i]);
- r->stats.bytes += bufs[i]->pkt_len;
+ nb_bytes += bufs[i]->pkt_len;
}
- vhost_update_packet_xstats(r, bufs, nb_rx);
+ r->stats.bytes += nb_bytes;
+ vhost_update_packet_xstats(r, bufs, nb_rx, nb_bytes, 0);
out:
rte_atomic32_set(&r->while_queuing, 0);
@@ -436,6 +441,8 @@ eth_vhost_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
struct vhost_queue *r = q;
uint16_t i, nb_tx = 0;
uint16_t nb_send = 0;
+ uint64_t nb_bytes = 0;
+ uint64_t nb_missed = 0;
if (unlikely(rte_atomic32_read(&r->allow_queuing) == 0))
return 0;
@@ -476,13 +483,16 @@ eth_vhost_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
break;
}
+ for (i = 0; likely(i < nb_tx); i++)
+ nb_bytes += bufs[i]->pkt_len;
+
+ nb_missed = nb_bufs - nb_tx;
+
r->stats.pkts += nb_tx;
+ r->stats.bytes += nb_bytes;
r->stats.missed_pkts += nb_bufs - nb_tx;
- for (i = 0; likely(i < nb_tx); i++)
- r->stats.bytes += bufs[i]->pkt_len;
-
- vhost_update_packet_xstats(r, bufs, nb_tx);
+ vhost_update_packet_xstats(r, bufs, nb_tx, nb_bytes, nb_missed);
/* According to RFC2863 page42 section ifHCOutMulticastPkts and
* ifHCOutBroadcastPkts, the counters "multicast" and "broadcast"
--
2.18.4
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [dpdk-dev] [PATCH] net/vhost: fix xstats wrong after clearing stats
2020-09-02 17:03 [dpdk-dev] [PATCH] net/vhost: fix xstats wrong after clearing stats David Christensen
@ 2020-09-11 7:44 ` Xia, Chenbo
2020-09-23 8:07 ` Maxime Coquelin
2020-10-06 21:23 ` [dpdk-dev] [PATCH v2] " David Christensen
1 sibling, 1 reply; 11+ messages in thread
From: Xia, Chenbo @ 2020-09-11 7:44 UTC (permalink / raw)
To: David Christensen, maxime.coquelin, Wang, Zhihong, dev
Hi David,
Thanks for working on this. Comments inline.
> -----Original Message-----
> From: David Christensen <drc@linux.vnet.ibm.com>
> Sent: Thursday, September 3, 2020 1:03 AM
> To: maxime.coquelin@redhat.com; Xia, Chenbo <chenbo.xia@intel.com>; Wang,
> Zhihong <zhihong.wang@intel.com>; dev@dpdk.org
> Cc: David Christensen <drc@linux.vnet.ibm.com>
> Subject: [PATCH] net/vhost: fix xstats wrong after clearing stats
>
> The PMD API allows stats and xstats values to be cleared separately.
> This is a problem for the vhost PMD since some of the xstats values are
> derived from existing stats values. For example:
>
> testpmd> show port xstats all
> ...
> tx_unicast_packets: 17562959
> ...
> testpmd> clear port stats all
> ...
> show port xstats all
> ...
> tx_unicast_packets: 18446744073709551615
> ...
>
> Modify the driver so that stats and xstats values are stored, updated,
> and cleared separately.
I think it's fix patch. So please add 'Fixes:XXX' and cc to stable@dpdk.org
in your commit message.
>
> Signed-off-by: David Christensen <drc@linux.vnet.ibm.com>
> ---
> drivers/net/vhost/rte_eth_vhost.c | 54 ++++++++++++++++++-------------
> 1 file changed, 32 insertions(+), 22 deletions(-)
>
> diff --git a/drivers/net/vhost/rte_eth_vhost.c
> b/drivers/net/vhost/rte_eth_vhost.c
> index e55278af6..4e72cc2ca 100644
> --- a/drivers/net/vhost/rte_eth_vhost.c
> +++ b/drivers/net/vhost/rte_eth_vhost.c
> @@ -73,6 +73,9 @@ enum vhost_xstats_pkts {
> VHOST_BROADCAST_PKT,
> VHOST_MULTICAST_PKT,
> VHOST_UNICAST_PKT,
> + VHOST_PKT,
> + VHOST_BYTE,
> + VHOST_MISSED_PKT,
> VHOST_ERRORS_PKT,
> VHOST_ERRORS_FRAGMENTED,
> VHOST_ERRORS_JABBER,
> @@ -149,11 +152,11 @@ struct vhost_xstats_name_off {
> /* [rx]_is prepended to the name string here */
> static const struct vhost_xstats_name_off vhost_rxport_stat_strings[] = {
> {"good_packets",
> - offsetof(struct vhost_queue, stats.pkts)},
> + offsetof(struct vhost_queue, stats.xstats[VHOST_PKT])},
> {"total_bytes",
> - offsetof(struct vhost_queue, stats.bytes)},
> + offsetof(struct vhost_queue, stats.xstats[VHOST_BYTE])},
> {"missed_pkts",
> - offsetof(struct vhost_queue, stats.missed_pkts)},
> + offsetof(struct vhost_queue, stats.xstats[VHOST_MISSED_PKT])},
> {"broadcast_packets",
> offsetof(struct vhost_queue, stats.xstats[VHOST_BROADCAST_PKT])},
> {"multicast_packets",
> @@ -189,11 +192,11 @@ static const struct vhost_xstats_name_off
> vhost_rxport_stat_strings[] = {
> /* [tx]_ is prepended to the name string here */
> static const struct vhost_xstats_name_off vhost_txport_stat_strings[] = {
> {"good_packets",
> - offsetof(struct vhost_queue, stats.pkts)},
> + offsetof(struct vhost_queue, stats.xstats[VHOST_PKT])},
> {"total_bytes",
> - offsetof(struct vhost_queue, stats.bytes)},
> + offsetof(struct vhost_queue, stats.xstats[VHOST_BYTE])},
> {"missed_pkts",
> - offsetof(struct vhost_queue, stats.missed_pkts)},
> + offsetof(struct vhost_queue, stats.xstats[VHOST_MISSED_PKT])},
> {"broadcast_packets",
> offsetof(struct vhost_queue, stats.xstats[VHOST_BROADCAST_PKT])},
> {"multicast_packets",
> @@ -291,18 +294,11 @@ vhost_dev_xstats_get(struct rte_eth_dev *dev, struct
> rte_eth_xstat *xstats,
> vq = dev->data->rx_queues[i];
> if (!vq)
> continue;
> - vq->stats.xstats[VHOST_UNICAST_PKT] = vq->stats.pkts
> - - (vq->stats.xstats[VHOST_BROADCAST_PKT]
> - + vq->stats.xstats[VHOST_MULTICAST_PKT]);
> }
Why not delete the for loop here?
> for (i = 0; i < dev->data->nb_tx_queues; i++) {
> vq = dev->data->tx_queues[i];
> if (!vq)
> continue;
> - vq->stats.xstats[VHOST_UNICAST_PKT] = vq->stats.pkts
> - + vq->stats.missed_pkts
> - - (vq->stats.xstats[VHOST_BROADCAST_PKT]
> - + vq->stats.xstats[VHOST_MULTICAST_PKT]);
> }
Ditto.
> for (t = 0; t < VHOST_NB_XSTATS_RXPORT; t++) {
> xstats[count].value = 0;
> @@ -346,20 +342,27 @@ vhost_count_multicast_broadcast(struct vhost_queue
> *vq,
> pstats->xstats[VHOST_BROADCAST_PKT]++;
> else
> pstats->xstats[VHOST_MULTICAST_PKT]++;
> + } else {
> + pstats->xstats[VHOST_UNICAST_PKT]++;
As this function also count unicast pkts now. The function name should better
be changed. Besides, in 'eth_vhost_tx' which calls this function, there's a
comment about why we calls the function. I think that should also be updated.
Thanks!
Chenbo
> }
> }
>
> static void
> -vhost_update_packet_xstats(struct vhost_queue *vq,
> - struct rte_mbuf **bufs,
> - uint16_t count)
> +vhost_update_packet_xstats(struct vhost_queue *vq, struct rte_mbuf **bufs,
> + uint16_t count, uint64_t nb_bytes,
> + uint64_t nb_missed)
> {
> uint32_t pkt_len = 0;
> uint64_t i = 0;
> uint64_t index;
> struct vhost_stats *pstats = &vq->stats;
>
> + pstats->xstats[VHOST_BYTE] += nb_bytes;
> + pstats->xstats[VHOST_MISSED_PKT] += nb_missed;
> + pstats->xstats[VHOST_UNICAST_PKT] += nb_missed;
> +
> for (i = 0; i < count ; i++) {
> + pstats->xstats[VHOST_PKT]++;
> pkt_len = bufs[i]->pkt_len;
> if (pkt_len == 64) {
> pstats->xstats[VHOST_64_PKT]++;
> @@ -385,6 +388,7 @@ eth_vhost_rx(void *q, struct rte_mbuf **bufs, uint16_t
> nb_bufs)
> struct vhost_queue *r = q;
> uint16_t i, nb_rx = 0;
> uint16_t nb_receive = nb_bufs;
> + uint64_t nb_bytes = 0;
>
> if (unlikely(rte_atomic32_read(&r->allow_queuing) == 0))
> return 0;
> @@ -419,10 +423,11 @@ eth_vhost_rx(void *q, struct rte_mbuf **bufs,
> uint16_t nb_bufs)
> if (r->internal->vlan_strip)
> rte_vlan_strip(bufs[i]);
>
> - r->stats.bytes += bufs[i]->pkt_len;
> + nb_bytes += bufs[i]->pkt_len;
> }
>
> - vhost_update_packet_xstats(r, bufs, nb_rx);
> + r->stats.bytes += nb_bytes;
> + vhost_update_packet_xstats(r, bufs, nb_rx, nb_bytes, 0);
>
> out:
> rte_atomic32_set(&r->while_queuing, 0);
> @@ -436,6 +441,8 @@ eth_vhost_tx(void *q, struct rte_mbuf **bufs, uint16_t
> nb_bufs)
> struct vhost_queue *r = q;
> uint16_t i, nb_tx = 0;
> uint16_t nb_send = 0;
> + uint64_t nb_bytes = 0;
> + uint64_t nb_missed = 0;
>
> if (unlikely(rte_atomic32_read(&r->allow_queuing) == 0))
> return 0;
> @@ -476,13 +483,16 @@ eth_vhost_tx(void *q, struct rte_mbuf **bufs,
> uint16_t nb_bufs)
> break;
> }
>
> + for (i = 0; likely(i < nb_tx); i++)
> + nb_bytes += bufs[i]->pkt_len;
> +
> + nb_missed = nb_bufs - nb_tx;
> +
> r->stats.pkts += nb_tx;
> + r->stats.bytes += nb_bytes;
> r->stats.missed_pkts += nb_bufs - nb_tx;
>
> - for (i = 0; likely(i < nb_tx); i++)
> - r->stats.bytes += bufs[i]->pkt_len;
> -
> - vhost_update_packet_xstats(r, bufs, nb_tx);
> + vhost_update_packet_xstats(r, bufs, nb_tx, nb_bytes, nb_missed);
>
> /* According to RFC2863 page42 section ifHCOutMulticastPkts and
> * ifHCOutBroadcastPkts, the counters "multicast" and "broadcast"
> --
> 2.18.4
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [dpdk-dev] [PATCH] net/vhost: fix xstats wrong after clearing stats
2020-09-11 7:44 ` Xia, Chenbo
@ 2020-09-23 8:07 ` Maxime Coquelin
2020-10-05 17:43 ` David Christensen
0 siblings, 1 reply; 11+ messages in thread
From: Maxime Coquelin @ 2020-09-23 8:07 UTC (permalink / raw)
To: Xia, Chenbo, David Christensen, Wang, Zhihong, dev
Hi David,
Could you please post a v2 with Chenbo's comments taken into account?
Thanks,
Maxime
On 9/11/20 9:44 AM, Xia, Chenbo wrote:
> Hi David,
>
> Thanks for working on this. Comments inline.
>
>> -----Original Message-----
>> From: David Christensen <drc@linux.vnet.ibm.com>
>> Sent: Thursday, September 3, 2020 1:03 AM
>> To: maxime.coquelin@redhat.com; Xia, Chenbo <chenbo.xia@intel.com>; Wang,
>> Zhihong <zhihong.wang@intel.com>; dev@dpdk.org
>> Cc: David Christensen <drc@linux.vnet.ibm.com>
>> Subject: [PATCH] net/vhost: fix xstats wrong after clearing stats
>>
>> The PMD API allows stats and xstats values to be cleared separately.
>> This is a problem for the vhost PMD since some of the xstats values are
>> derived from existing stats values. For example:
>>
>> testpmd> show port xstats all
>> ...
>> tx_unicast_packets: 17562959
>> ...
>> testpmd> clear port stats all
>> ...
>> show port xstats all
>> ...
>> tx_unicast_packets: 18446744073709551615
>> ...
>>
>> Modify the driver so that stats and xstats values are stored, updated,
>> and cleared separately.
>
> I think it's fix patch. So please add 'Fixes:XXX' and cc to stable@dpdk.org
> in your commit message.
>
>>
>> Signed-off-by: David Christensen <drc@linux.vnet.ibm.com>
>> ---
>> drivers/net/vhost/rte_eth_vhost.c | 54 ++++++++++++++++++-------------
>> 1 file changed, 32 insertions(+), 22 deletions(-)
>>
>> diff --git a/drivers/net/vhost/rte_eth_vhost.c
>> b/drivers/net/vhost/rte_eth_vhost.c
>> index e55278af6..4e72cc2ca 100644
>> --- a/drivers/net/vhost/rte_eth_vhost.c
>> +++ b/drivers/net/vhost/rte_eth_vhost.c
>> @@ -73,6 +73,9 @@ enum vhost_xstats_pkts {
>> VHOST_BROADCAST_PKT,
>> VHOST_MULTICAST_PKT,
>> VHOST_UNICAST_PKT,
>> + VHOST_PKT,
>> + VHOST_BYTE,
>> + VHOST_MISSED_PKT,
>> VHOST_ERRORS_PKT,
>> VHOST_ERRORS_FRAGMENTED,
>> VHOST_ERRORS_JABBER,
>> @@ -149,11 +152,11 @@ struct vhost_xstats_name_off {
>> /* [rx]_is prepended to the name string here */
>> static const struct vhost_xstats_name_off vhost_rxport_stat_strings[] = {
>> {"good_packets",
>> - offsetof(struct vhost_queue, stats.pkts)},
>> + offsetof(struct vhost_queue, stats.xstats[VHOST_PKT])},
>> {"total_bytes",
>> - offsetof(struct vhost_queue, stats.bytes)},
>> + offsetof(struct vhost_queue, stats.xstats[VHOST_BYTE])},
>> {"missed_pkts",
>> - offsetof(struct vhost_queue, stats.missed_pkts)},
>> + offsetof(struct vhost_queue, stats.xstats[VHOST_MISSED_PKT])},
>> {"broadcast_packets",
>> offsetof(struct vhost_queue, stats.xstats[VHOST_BROADCAST_PKT])},
>> {"multicast_packets",
>> @@ -189,11 +192,11 @@ static const struct vhost_xstats_name_off
>> vhost_rxport_stat_strings[] = {
>> /* [tx]_ is prepended to the name string here */
>> static const struct vhost_xstats_name_off vhost_txport_stat_strings[] = {
>> {"good_packets",
>> - offsetof(struct vhost_queue, stats.pkts)},
>> + offsetof(struct vhost_queue, stats.xstats[VHOST_PKT])},
>> {"total_bytes",
>> - offsetof(struct vhost_queue, stats.bytes)},
>> + offsetof(struct vhost_queue, stats.xstats[VHOST_BYTE])},
>> {"missed_pkts",
>> - offsetof(struct vhost_queue, stats.missed_pkts)},
>> + offsetof(struct vhost_queue, stats.xstats[VHOST_MISSED_PKT])},
>> {"broadcast_packets",
>> offsetof(struct vhost_queue, stats.xstats[VHOST_BROADCAST_PKT])},
>> {"multicast_packets",
>> @@ -291,18 +294,11 @@ vhost_dev_xstats_get(struct rte_eth_dev *dev, struct
>> rte_eth_xstat *xstats,
>> vq = dev->data->rx_queues[i];
>> if (!vq)
>> continue;
>> - vq->stats.xstats[VHOST_UNICAST_PKT] = vq->stats.pkts
>> - - (vq->stats.xstats[VHOST_BROADCAST_PKT]
>> - + vq->stats.xstats[VHOST_MULTICAST_PKT]);
>> }
>
> Why not delete the for loop here?
>
>> for (i = 0; i < dev->data->nb_tx_queues; i++) {
>> vq = dev->data->tx_queues[i];
>> if (!vq)
>> continue;
>> - vq->stats.xstats[VHOST_UNICAST_PKT] = vq->stats.pkts
>> - + vq->stats.missed_pkts
>> - - (vq->stats.xstats[VHOST_BROADCAST_PKT]
>> - + vq->stats.xstats[VHOST_MULTICAST_PKT]);
>> }
>
> Ditto.
>
>> for (t = 0; t < VHOST_NB_XSTATS_RXPORT; t++) {
>> xstats[count].value = 0;
>> @@ -346,20 +342,27 @@ vhost_count_multicast_broadcast(struct vhost_queue
>> *vq,
>> pstats->xstats[VHOST_BROADCAST_PKT]++;
>> else
>> pstats->xstats[VHOST_MULTICAST_PKT]++;
>> + } else {
>> + pstats->xstats[VHOST_UNICAST_PKT]++;
>
> As this function also count unicast pkts now. The function name should better
> be changed. Besides, in 'eth_vhost_tx' which calls this function, there's a
> comment about why we calls the function. I think that should also be updated.
>
> Thanks!
> Chenbo
>
>> }
>> }
>>
>> static void
>> -vhost_update_packet_xstats(struct vhost_queue *vq,
>> - struct rte_mbuf **bufs,
>> - uint16_t count)
>> +vhost_update_packet_xstats(struct vhost_queue *vq, struct rte_mbuf **bufs,
>> + uint16_t count, uint64_t nb_bytes,
>> + uint64_t nb_missed)
>> {
>> uint32_t pkt_len = 0;
>> uint64_t i = 0;
>> uint64_t index;
>> struct vhost_stats *pstats = &vq->stats;
>>
>> + pstats->xstats[VHOST_BYTE] += nb_bytes;
>> + pstats->xstats[VHOST_MISSED_PKT] += nb_missed;
>> + pstats->xstats[VHOST_UNICAST_PKT] += nb_missed;
>> +
>> for (i = 0; i < count ; i++) {
>> + pstats->xstats[VHOST_PKT]++;
>> pkt_len = bufs[i]->pkt_len;
>> if (pkt_len == 64) {
>> pstats->xstats[VHOST_64_PKT]++;
>> @@ -385,6 +388,7 @@ eth_vhost_rx(void *q, struct rte_mbuf **bufs, uint16_t
>> nb_bufs)
>> struct vhost_queue *r = q;
>> uint16_t i, nb_rx = 0;
>> uint16_t nb_receive = nb_bufs;
>> + uint64_t nb_bytes = 0;
>>
>> if (unlikely(rte_atomic32_read(&r->allow_queuing) == 0))
>> return 0;
>> @@ -419,10 +423,11 @@ eth_vhost_rx(void *q, struct rte_mbuf **bufs,
>> uint16_t nb_bufs)
>> if (r->internal->vlan_strip)
>> rte_vlan_strip(bufs[i]);
>>
>> - r->stats.bytes += bufs[i]->pkt_len;
>> + nb_bytes += bufs[i]->pkt_len;
>> }
>>
>> - vhost_update_packet_xstats(r, bufs, nb_rx);
>> + r->stats.bytes += nb_bytes;
>> + vhost_update_packet_xstats(r, bufs, nb_rx, nb_bytes, 0);
>>
>> out:
>> rte_atomic32_set(&r->while_queuing, 0);
>> @@ -436,6 +441,8 @@ eth_vhost_tx(void *q, struct rte_mbuf **bufs, uint16_t
>> nb_bufs)
>> struct vhost_queue *r = q;
>> uint16_t i, nb_tx = 0;
>> uint16_t nb_send = 0;
>> + uint64_t nb_bytes = 0;
>> + uint64_t nb_missed = 0;
>>
>> if (unlikely(rte_atomic32_read(&r->allow_queuing) == 0))
>> return 0;
>> @@ -476,13 +483,16 @@ eth_vhost_tx(void *q, struct rte_mbuf **bufs,
>> uint16_t nb_bufs)
>> break;
>> }
>>
>> + for (i = 0; likely(i < nb_tx); i++)
>> + nb_bytes += bufs[i]->pkt_len;
>> +
>> + nb_missed = nb_bufs - nb_tx;
>> +
>> r->stats.pkts += nb_tx;
>> + r->stats.bytes += nb_bytes;
>> r->stats.missed_pkts += nb_bufs - nb_tx;
>>
>> - for (i = 0; likely(i < nb_tx); i++)
>> - r->stats.bytes += bufs[i]->pkt_len;
>> -
>> - vhost_update_packet_xstats(r, bufs, nb_tx);
>> + vhost_update_packet_xstats(r, bufs, nb_tx, nb_bytes, nb_missed);
>>
>> /* According to RFC2863 page42 section ifHCOutMulticastPkts and
>> * ifHCOutBroadcastPkts, the counters "multicast" and "broadcast"
>> --
>> 2.18.4
>
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [dpdk-dev] [PATCH] net/vhost: fix xstats wrong after clearing stats
2020-09-23 8:07 ` Maxime Coquelin
@ 2020-10-05 17:43 ` David Christensen
2020-10-06 7:32 ` Maxime Coquelin
0 siblings, 1 reply; 11+ messages in thread
From: David Christensen @ 2020-10-05 17:43 UTC (permalink / raw)
To: Maxime Coquelin, Xia, Chenbo, Wang, Zhihong, dev
On 9/23/20 1:07 AM, Maxime Coquelin wrote:
> Hi David,
>
> Could you please post a v2 with Chenbo's comments taken into account?
Sorry, been out of the office for a bit but now working through my
backlog. I did make the change but discovered there were additional
dependencies between stats and xstats that weren't addressed in the v1
patch, specifically per queue packet/byte counters:
$ diff before.txt after.txt:
< tx_good_packets: 24769339
---
> tx_good_packets: 0
6c6
< tx_good_bytes: 1501282012967
---
> tx_good_bytes: 0
14,15c14,15
< tx_q0packets: 24769339
< tx_q0bytes: 1501282012967
---
> tx_q0packets: 0
> tx_q0bytes: 0
51c51
< tx_good_packets: 2653125
---
> tx_good_packets: 0
53c53
< tx_good_bytes: 167404266
---
> tx_good_bytes: 0
61,62c61,62
< tx_q0packets: 2653125
< tx_q0bytes: 167404266
---
> tx_q0packets: 0
> tx_q0bytes: 0
I'm looking at how to address these as well for a v2 patch soon.
Dave
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [dpdk-dev] [PATCH] net/vhost: fix xstats wrong after clearing stats
2020-10-05 17:43 ` David Christensen
@ 2020-10-06 7:32 ` Maxime Coquelin
0 siblings, 0 replies; 11+ messages in thread
From: Maxime Coquelin @ 2020-10-06 7:32 UTC (permalink / raw)
To: David Christensen, Xia, Chenbo, Wang, Zhihong, dev
On 10/5/20 7:43 PM, David Christensen wrote:
>
>
> On 9/23/20 1:07 AM, Maxime Coquelin wrote:
>> Hi David,
>>
>> Could you please post a v2 with Chenbo's comments taken into account?
>
> Sorry, been out of the office for a bit but now working through my
> backlog. I did make the change but discovered there were additional
> dependencies between stats and xstats that weren't addressed in the v1
> patch, specifically per queue packet/byte counters:
>
> $ diff before.txt after.txt:
> < tx_good_packets: 24769339
> ---
>> tx_good_packets: 0
> 6c6
> < tx_good_bytes: 1501282012967
> ---
>> tx_good_bytes: 0
> 14,15c14,15
> < tx_q0packets: 24769339
> < tx_q0bytes: 1501282012967
> ---
>> tx_q0packets: 0
>> tx_q0bytes: 0
> 51c51
> < tx_good_packets: 2653125
> ---
>> tx_good_packets: 0
> 53c53
> < tx_good_bytes: 167404266
> ---
>> tx_good_bytes: 0
> 61,62c61,62
> < tx_q0packets: 2653125
> < tx_q0bytes: 167404266
> ---
>> tx_q0packets: 0
>> tx_q0bytes: 0
>
> I'm looking at how to address these as well for a v2 patch soon.
Thanks Dave!
> Dave
>
^ permalink raw reply [flat|nested] 11+ messages in thread
* [dpdk-dev] [PATCH v2] net/vhost: fix xstats wrong after clearing stats
2020-09-02 17:03 [dpdk-dev] [PATCH] net/vhost: fix xstats wrong after clearing stats David Christensen
2020-09-11 7:44 ` Xia, Chenbo
@ 2020-10-06 21:23 ` David Christensen
2020-10-09 3:13 ` Xia, Chenbo
2020-10-15 17:49 ` [dpdk-dev] [PATCH v3] " David Christensen
1 sibling, 2 replies; 11+ messages in thread
From: David Christensen @ 2020-10-06 21:23 UTC (permalink / raw)
To: dev, maxime.coquelin, chenbo.xia, zhihong.wang
Cc: stable, David Christensen, zhiyong.yang
The PMD API allows stats and xstats values to be cleared separately.
This is a problem for the vhost PMD since some of the xstats values are
derived from existing stats values. For example:
testpmd> show port xstats all
...
tx_unicast_packets: 17562959
...
testpmd> clear port stats all
...
show port xstats all
...
tx_unicast_packets: 18446744073709551615
...
Modify the driver so that stats and xstats values are stored, updated,
and cleared separately.
Fixes: 4d6cf2ac93dc ("net/vhost: add extended statistics")
Cc: zhiyong.yang@intel.com
Signed-off-by: David Christensen <drc@linux.vnet.ibm.com>
---
v2:
* Removed newly unused vq loops
* Added "fixes" message
* Renamed vhost_count_multicast_broadcast to vhost_count_xcast_packets
drivers/net/vhost/rte_eth_vhost.c | 70 +++++++++++++++----------------
1 file changed, 35 insertions(+), 35 deletions(-)
diff --git a/drivers/net/vhost/rte_eth_vhost.c b/drivers/net/vhost/rte_eth_vhost.c
index e55278af6..163cf9409 100644
--- a/drivers/net/vhost/rte_eth_vhost.c
+++ b/drivers/net/vhost/rte_eth_vhost.c
@@ -73,6 +73,9 @@ enum vhost_xstats_pkts {
VHOST_BROADCAST_PKT,
VHOST_MULTICAST_PKT,
VHOST_UNICAST_PKT,
+ VHOST_PKT,
+ VHOST_BYTE,
+ VHOST_MISSED_PKT,
VHOST_ERRORS_PKT,
VHOST_ERRORS_FRAGMENTED,
VHOST_ERRORS_JABBER,
@@ -149,11 +152,11 @@ struct vhost_xstats_name_off {
/* [rx]_is prepended to the name string here */
static const struct vhost_xstats_name_off vhost_rxport_stat_strings[] = {
{"good_packets",
- offsetof(struct vhost_queue, stats.pkts)},
+ offsetof(struct vhost_queue, stats.xstats[VHOST_PKT])},
{"total_bytes",
- offsetof(struct vhost_queue, stats.bytes)},
+ offsetof(struct vhost_queue, stats.xstats[VHOST_BYTE])},
{"missed_pkts",
- offsetof(struct vhost_queue, stats.missed_pkts)},
+ offsetof(struct vhost_queue, stats.xstats[VHOST_MISSED_PKT])},
{"broadcast_packets",
offsetof(struct vhost_queue, stats.xstats[VHOST_BROADCAST_PKT])},
{"multicast_packets",
@@ -189,11 +192,11 @@ static const struct vhost_xstats_name_off vhost_rxport_stat_strings[] = {
/* [tx]_ is prepended to the name string here */
static const struct vhost_xstats_name_off vhost_txport_stat_strings[] = {
{"good_packets",
- offsetof(struct vhost_queue, stats.pkts)},
+ offsetof(struct vhost_queue, stats.xstats[VHOST_PKT])},
{"total_bytes",
- offsetof(struct vhost_queue, stats.bytes)},
+ offsetof(struct vhost_queue, stats.xstats[VHOST_BYTE])},
{"missed_pkts",
- offsetof(struct vhost_queue, stats.missed_pkts)},
+ offsetof(struct vhost_queue, stats.xstats[VHOST_MISSED_PKT])},
{"broadcast_packets",
offsetof(struct vhost_queue, stats.xstats[VHOST_BROADCAST_PKT])},
{"multicast_packets",
@@ -287,23 +290,6 @@ vhost_dev_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
if (n < nxstats)
return nxstats;
- for (i = 0; i < dev->data->nb_rx_queues; i++) {
- vq = dev->data->rx_queues[i];
- if (!vq)
- continue;
- vq->stats.xstats[VHOST_UNICAST_PKT] = vq->stats.pkts
- - (vq->stats.xstats[VHOST_BROADCAST_PKT]
- + vq->stats.xstats[VHOST_MULTICAST_PKT]);
- }
- for (i = 0; i < dev->data->nb_tx_queues; i++) {
- vq = dev->data->tx_queues[i];
- if (!vq)
- continue;
- vq->stats.xstats[VHOST_UNICAST_PKT] = vq->stats.pkts
- + vq->stats.missed_pkts
- - (vq->stats.xstats[VHOST_BROADCAST_PKT]
- + vq->stats.xstats[VHOST_MULTICAST_PKT]);
- }
for (t = 0; t < VHOST_NB_XSTATS_RXPORT; t++) {
xstats[count].value = 0;
for (i = 0; i < dev->data->nb_rx_queues; i++) {
@@ -334,7 +320,7 @@ vhost_dev_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
}
static inline void
-vhost_count_multicast_broadcast(struct vhost_queue *vq,
+vhost_count_xcast_packets(struct vhost_queue *vq,
struct rte_mbuf *mbuf)
{
struct rte_ether_addr *ea = NULL;
@@ -346,20 +332,27 @@ vhost_count_multicast_broadcast(struct vhost_queue *vq,
pstats->xstats[VHOST_BROADCAST_PKT]++;
else
pstats->xstats[VHOST_MULTICAST_PKT]++;
+ } else {
+ pstats->xstats[VHOST_UNICAST_PKT]++;
}
}
static void
-vhost_update_packet_xstats(struct vhost_queue *vq,
- struct rte_mbuf **bufs,
- uint16_t count)
+vhost_update_packet_xstats(struct vhost_queue *vq, struct rte_mbuf **bufs,
+ uint16_t count, uint64_t nb_bytes,
+ uint64_t nb_missed)
{
uint32_t pkt_len = 0;
uint64_t i = 0;
uint64_t index;
struct vhost_stats *pstats = &vq->stats;
+ pstats->xstats[VHOST_BYTE] += nb_bytes;
+ pstats->xstats[VHOST_MISSED_PKT] += nb_missed;
+ pstats->xstats[VHOST_UNICAST_PKT] += nb_missed;
+
for (i = 0; i < count ; i++) {
+ pstats->xstats[VHOST_PKT]++;
pkt_len = bufs[i]->pkt_len;
if (pkt_len == 64) {
pstats->xstats[VHOST_64_PKT]++;
@@ -375,7 +368,7 @@ vhost_update_packet_xstats(struct vhost_queue *vq,
else if (pkt_len > 1522)
pstats->xstats[VHOST_1523_TO_MAX_PKT]++;
}
- vhost_count_multicast_broadcast(vq, bufs[i]);
+ vhost_count_xcast_packets(vq, bufs[i]);
}
}
@@ -385,6 +378,7 @@ eth_vhost_rx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
struct vhost_queue *r = q;
uint16_t i, nb_rx = 0;
uint16_t nb_receive = nb_bufs;
+ uint64_t nb_bytes = 0;
if (unlikely(rte_atomic32_read(&r->allow_queuing) == 0))
return 0;
@@ -419,10 +413,11 @@ eth_vhost_rx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
if (r->internal->vlan_strip)
rte_vlan_strip(bufs[i]);
- r->stats.bytes += bufs[i]->pkt_len;
+ nb_bytes += bufs[i]->pkt_len;
}
- vhost_update_packet_xstats(r, bufs, nb_rx);
+ r->stats.bytes += nb_bytes;
+ vhost_update_packet_xstats(r, bufs, nb_rx, nb_bytes, 0);
out:
rte_atomic32_set(&r->while_queuing, 0);
@@ -436,6 +431,8 @@ eth_vhost_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
struct vhost_queue *r = q;
uint16_t i, nb_tx = 0;
uint16_t nb_send = 0;
+ uint64_t nb_bytes = 0;
+ uint64_t nb_missed = 0;
if (unlikely(rte_atomic32_read(&r->allow_queuing) == 0))
return 0;
@@ -476,20 +473,23 @@ eth_vhost_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
break;
}
+ for (i = 0; likely(i < nb_tx); i++)
+ nb_bytes += bufs[i]->pkt_len;
+
+ nb_missed = nb_bufs - nb_tx;
+
r->stats.pkts += nb_tx;
+ r->stats.bytes += nb_bytes;
r->stats.missed_pkts += nb_bufs - nb_tx;
- for (i = 0; likely(i < nb_tx); i++)
- r->stats.bytes += bufs[i]->pkt_len;
-
- vhost_update_packet_xstats(r, bufs, nb_tx);
+ vhost_update_packet_xstats(r, bufs, nb_tx, nb_bytes, nb_missed);
/* According to RFC2863 page42 section ifHCOutMulticastPkts and
* ifHCOutBroadcastPkts, the counters "multicast" and "broadcast"
* are increased when packets are not transmitted successfully.
*/
for (i = nb_tx; i < nb_bufs; i++)
- vhost_count_multicast_broadcast(r, bufs[i]);
+ vhost_count_xcast_packets(r, bufs[i]);
for (i = 0; likely(i < nb_tx); i++)
rte_pktmbuf_free(bufs[i]);
--
2.18.4
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [dpdk-dev] [PATCH v2] net/vhost: fix xstats wrong after clearing stats
2020-10-06 21:23 ` [dpdk-dev] [PATCH v2] " David Christensen
@ 2020-10-09 3:13 ` Xia, Chenbo
2020-10-15 17:49 ` [dpdk-dev] [PATCH v3] " David Christensen
1 sibling, 0 replies; 11+ messages in thread
From: Xia, Chenbo @ 2020-10-09 3:13 UTC (permalink / raw)
To: David Christensen, dev, maxime.coquelin, Wang, Zhihong
Cc: stable, Yang, Zhiyong
Hi David,
> -----Original Message-----
> From: David Christensen <drc@linux.vnet.ibm.com>
> Sent: Wednesday, October 7, 2020 5:23 AM
> To: dev@dpdk.org; maxime.coquelin@redhat.com; Xia, Chenbo
> <chenbo.xia@intel.com>; Wang, Zhihong <zhihong.wang@intel.com>
> Cc: stable@dpdk.org; David Christensen <drc@linux.vnet.ibm.com>; Yang,
> Zhiyong <zhiyong.yang@intel.com>
> Subject: [PATCH v2] net/vhost: fix xstats wrong after clearing stats
>
> The PMD API allows stats and xstats values to be cleared separately.
> This is a problem for the vhost PMD since some of the xstats values are
> derived from existing stats values. For example:
>
> testpmd> show port xstats all
> ...
> tx_unicast_packets: 17562959
> ...
> testpmd> clear port stats all
> ...
> show port xstats all
> ...
> tx_unicast_packets: 18446744073709551615
> ...
>
> Modify the driver so that stats and xstats values are stored, updated,
> and cleared separately.
>
> Fixes: 4d6cf2ac93dc ("net/vhost: add extended statistics")
> Cc: zhiyong.yang@intel.com
Better to replace this Cc with 'Cc: stable@dpdk.org' as other fix patches
do. You can cc zhiyong with git send-email command.
>
> Signed-off-by: David Christensen <drc@linux.vnet.ibm.com>
> ---
> v2:
> * Removed newly unused vq loops
> * Added "fixes" message
> * Renamed vhost_count_multicast_broadcast to vhost_count_xcast_packets
>
> drivers/net/vhost/rte_eth_vhost.c | 70 +++++++++++++++----------------
> 1 file changed, 35 insertions(+), 35 deletions(-)
>
> diff --git a/drivers/net/vhost/rte_eth_vhost.c
> b/drivers/net/vhost/rte_eth_vhost.c
> index e55278af6..163cf9409 100644
> --- a/drivers/net/vhost/rte_eth_vhost.c
> +++ b/drivers/net/vhost/rte_eth_vhost.c
> @@ -73,6 +73,9 @@ enum vhost_xstats_pkts {
> VHOST_BROADCAST_PKT,
> VHOST_MULTICAST_PKT,
> VHOST_UNICAST_PKT,
> + VHOST_PKT,
> + VHOST_BYTE,
> + VHOST_MISSED_PKT,
> VHOST_ERRORS_PKT,
> VHOST_ERRORS_FRAGMENTED,
> VHOST_ERRORS_JABBER,
> @@ -149,11 +152,11 @@ struct vhost_xstats_name_off {
> /* [rx]_is prepended to the name string here */
> static const struct vhost_xstats_name_off vhost_rxport_stat_strings[] = {
> {"good_packets",
> - offsetof(struct vhost_queue, stats.pkts)},
> + offsetof(struct vhost_queue, stats.xstats[VHOST_PKT])},
> {"total_bytes",
> - offsetof(struct vhost_queue, stats.bytes)},
> + offsetof(struct vhost_queue, stats.xstats[VHOST_BYTE])},
> {"missed_pkts",
> - offsetof(struct vhost_queue, stats.missed_pkts)},
> + offsetof(struct vhost_queue, stats.xstats[VHOST_MISSED_PKT])},
> {"broadcast_packets",
> offsetof(struct vhost_queue, stats.xstats[VHOST_BROADCAST_PKT])},
> {"multicast_packets",
> @@ -189,11 +192,11 @@ static const struct vhost_xstats_name_off
> vhost_rxport_stat_strings[] = {
> /* [tx]_ is prepended to the name string here */
> static const struct vhost_xstats_name_off vhost_txport_stat_strings[] = {
> {"good_packets",
> - offsetof(struct vhost_queue, stats.pkts)},
> + offsetof(struct vhost_queue, stats.xstats[VHOST_PKT])},
> {"total_bytes",
> - offsetof(struct vhost_queue, stats.bytes)},
> + offsetof(struct vhost_queue, stats.xstats[VHOST_BYTE])},
> {"missed_pkts",
> - offsetof(struct vhost_queue, stats.missed_pkts)},
> + offsetof(struct vhost_queue, stats.xstats[VHOST_MISSED_PKT])},
> {"broadcast_packets",
> offsetof(struct vhost_queue, stats.xstats[VHOST_BROADCAST_PKT])},
> {"multicast_packets",
> @@ -287,23 +290,6 @@ vhost_dev_xstats_get(struct rte_eth_dev *dev, struct
> rte_eth_xstat *xstats,
> if (n < nxstats)
> return nxstats;
>
> - for (i = 0; i < dev->data->nb_rx_queues; i++) {
> - vq = dev->data->rx_queues[i];
> - if (!vq)
> - continue;
> - vq->stats.xstats[VHOST_UNICAST_PKT] = vq->stats.pkts
> - - (vq->stats.xstats[VHOST_BROADCAST_PKT]
> - + vq->stats.xstats[VHOST_MULTICAST_PKT]);
> - }
> - for (i = 0; i < dev->data->nb_tx_queues; i++) {
> - vq = dev->data->tx_queues[i];
> - if (!vq)
> - continue;
> - vq->stats.xstats[VHOST_UNICAST_PKT] = vq->stats.pkts
> - + vq->stats.missed_pkts
> - - (vq->stats.xstats[VHOST_BROADCAST_PKT]
> - + vq->stats.xstats[VHOST_MULTICAST_PKT]);
> - }
> for (t = 0; t < VHOST_NB_XSTATS_RXPORT; t++) {
> xstats[count].value = 0;
> for (i = 0; i < dev->data->nb_rx_queues; i++) {
> @@ -334,7 +320,7 @@ vhost_dev_xstats_get(struct rte_eth_dev *dev, struct
> rte_eth_xstat *xstats,
> }
>
> static inline void
> -vhost_count_multicast_broadcast(struct vhost_queue *vq,
> +vhost_count_xcast_packets(struct vhost_queue *vq,
> struct rte_mbuf *mbuf)
> {
> struct rte_ether_addr *ea = NULL;
> @@ -346,20 +332,27 @@ vhost_count_multicast_broadcast(struct vhost_queue
> *vq,
> pstats->xstats[VHOST_BROADCAST_PKT]++;
> else
> pstats->xstats[VHOST_MULTICAST_PKT]++;
> + } else {
> + pstats->xstats[VHOST_UNICAST_PKT]++;
> }
> }
>
> static void
> -vhost_update_packet_xstats(struct vhost_queue *vq,
> - struct rte_mbuf **bufs,
> - uint16_t count)
> +vhost_update_packet_xstats(struct vhost_queue *vq, struct rte_mbuf **bufs,
> + uint16_t count, uint64_t nb_bytes,
> + uint64_t nb_missed)
> {
> uint32_t pkt_len = 0;
> uint64_t i = 0;
> uint64_t index;
> struct vhost_stats *pstats = &vq->stats;
>
> + pstats->xstats[VHOST_BYTE] += nb_bytes;
> + pstats->xstats[VHOST_MISSED_PKT] += nb_missed;
> + pstats->xstats[VHOST_UNICAST_PKT] += nb_missed;
> +
> for (i = 0; i < count ; i++) {
> + pstats->xstats[VHOST_PKT]++;
> pkt_len = bufs[i]->pkt_len;
> if (pkt_len == 64) {
> pstats->xstats[VHOST_64_PKT]++;
> @@ -375,7 +368,7 @@ vhost_update_packet_xstats(struct vhost_queue *vq,
> else if (pkt_len > 1522)
> pstats->xstats[VHOST_1523_TO_MAX_PKT]++;
> }
> - vhost_count_multicast_broadcast(vq, bufs[i]);
> + vhost_count_xcast_packets(vq, bufs[i]);
> }
> }
>
> @@ -385,6 +378,7 @@ eth_vhost_rx(void *q, struct rte_mbuf **bufs, uint16_t
> nb_bufs)
> struct vhost_queue *r = q;
> uint16_t i, nb_rx = 0;
> uint16_t nb_receive = nb_bufs;
> + uint64_t nb_bytes = 0;
>
> if (unlikely(rte_atomic32_read(&r->allow_queuing) == 0))
> return 0;
> @@ -419,10 +413,11 @@ eth_vhost_rx(void *q, struct rte_mbuf **bufs,
> uint16_t nb_bufs)
> if (r->internal->vlan_strip)
> rte_vlan_strip(bufs[i]);
>
> - r->stats.bytes += bufs[i]->pkt_len;
> + nb_bytes += bufs[i]->pkt_len;
> }
>
> - vhost_update_packet_xstats(r, bufs, nb_rx);
> + r->stats.bytes += nb_bytes;
> + vhost_update_packet_xstats(r, bufs, nb_rx, nb_bytes, 0);
>
> out:
> rte_atomic32_set(&r->while_queuing, 0);
> @@ -436,6 +431,8 @@ eth_vhost_tx(void *q, struct rte_mbuf **bufs, uint16_t
> nb_bufs)
> struct vhost_queue *r = q;
> uint16_t i, nb_tx = 0;
> uint16_t nb_send = 0;
> + uint64_t nb_bytes = 0;
> + uint64_t nb_missed = 0;
>
> if (unlikely(rte_atomic32_read(&r->allow_queuing) == 0))
> return 0;
> @@ -476,20 +473,23 @@ eth_vhost_tx(void *q, struct rte_mbuf **bufs,
> uint16_t nb_bufs)
> break;
> }
>
> + for (i = 0; likely(i < nb_tx); i++)
> + nb_bytes += bufs[i]->pkt_len;
> +
> + nb_missed = nb_bufs - nb_tx;
> +
> r->stats.pkts += nb_tx;
> + r->stats.bytes += nb_bytes;
> r->stats.missed_pkts += nb_bufs - nb_tx;
>
> - for (i = 0; likely(i < nb_tx); i++)
> - r->stats.bytes += bufs[i]->pkt_len;
> -
> - vhost_update_packet_xstats(r, bufs, nb_tx);
> + vhost_update_packet_xstats(r, bufs, nb_tx, nb_bytes, nb_missed);
>
> /* According to RFC2863 page42 section ifHCOutMulticastPkts and
> * ifHCOutBroadcastPkts, the counters "multicast" and "broadcast"
> * are increased when packets are not transmitted successfully.
> */
I think the above comment should be updated because in the below function,
we also update unicast pkts too (Based on RFC2863).
Thanks!
Chenbo
> for (i = nb_tx; i < nb_bufs; i++)
> - vhost_count_multicast_broadcast(r, bufs[i]);
> + vhost_count_xcast_packets(r, bufs[i]);
>
> for (i = 0; likely(i < nb_tx); i++)
> rte_pktmbuf_free(bufs[i]);
> --
> 2.18.4
^ permalink raw reply [flat|nested] 11+ messages in thread
* [dpdk-dev] [PATCH v3] net/vhost: fix xstats wrong after clearing stats
2020-10-06 21:23 ` [dpdk-dev] [PATCH v2] " David Christensen
2020-10-09 3:13 ` Xia, Chenbo
@ 2020-10-15 17:49 ` David Christensen
2020-10-16 1:38 ` Xia, Chenbo
` (2 more replies)
1 sibling, 3 replies; 11+ messages in thread
From: David Christensen @ 2020-10-15 17:49 UTC (permalink / raw)
To: dev, maxime.coquelin, chenbo.xia, zhihong.wang; +Cc: stable, David Christensen
The PMD API allows stats and xstats values to be cleared separately.
This is a problem for the vhost PMD since some of the xstats values are
derived from existing stats values. For example:
testpmd> show port xstats all
...
tx_unicast_packets: 17562959
...
testpmd> clear port stats all
...
show port xstats all
...
tx_unicast_packets: 18446744073709551615
...
Modify the driver so that stats and xstats values are stored, updated,
and cleared separately.
Fixes: 4d6cf2ac93dc ("net/vhost: add extended statistics")
Cc: stable@dpdk.org
Signed-off-by: David Christensen <drc@linux.vnet.ibm.com>
---
v3:
* Modified comment that unicast packets include unsent packets
* Change Cc: to stable@dpdk.org
v2:
* Removed newly unused vq loops
* Added "fixes" message
* Renamed vhost_count_multicast_broadcast to vhost_count_xcast_packets
drivers/net/vhost/rte_eth_vhost.c | 76 +++++++++++++++----------------
1 file changed, 38 insertions(+), 38 deletions(-)
diff --git a/drivers/net/vhost/rte_eth_vhost.c b/drivers/net/vhost/rte_eth_vhost.c
index e55278af6..886b3afe0 100644
--- a/drivers/net/vhost/rte_eth_vhost.c
+++ b/drivers/net/vhost/rte_eth_vhost.c
@@ -73,6 +73,9 @@ enum vhost_xstats_pkts {
VHOST_BROADCAST_PKT,
VHOST_MULTICAST_PKT,
VHOST_UNICAST_PKT,
+ VHOST_PKT,
+ VHOST_BYTE,
+ VHOST_MISSED_PKT,
VHOST_ERRORS_PKT,
VHOST_ERRORS_FRAGMENTED,
VHOST_ERRORS_JABBER,
@@ -149,11 +152,11 @@ struct vhost_xstats_name_off {
/* [rx]_is prepended to the name string here */
static const struct vhost_xstats_name_off vhost_rxport_stat_strings[] = {
{"good_packets",
- offsetof(struct vhost_queue, stats.pkts)},
+ offsetof(struct vhost_queue, stats.xstats[VHOST_PKT])},
{"total_bytes",
- offsetof(struct vhost_queue, stats.bytes)},
+ offsetof(struct vhost_queue, stats.xstats[VHOST_BYTE])},
{"missed_pkts",
- offsetof(struct vhost_queue, stats.missed_pkts)},
+ offsetof(struct vhost_queue, stats.xstats[VHOST_MISSED_PKT])},
{"broadcast_packets",
offsetof(struct vhost_queue, stats.xstats[VHOST_BROADCAST_PKT])},
{"multicast_packets",
@@ -189,11 +192,11 @@ static const struct vhost_xstats_name_off vhost_rxport_stat_strings[] = {
/* [tx]_ is prepended to the name string here */
static const struct vhost_xstats_name_off vhost_txport_stat_strings[] = {
{"good_packets",
- offsetof(struct vhost_queue, stats.pkts)},
+ offsetof(struct vhost_queue, stats.xstats[VHOST_PKT])},
{"total_bytes",
- offsetof(struct vhost_queue, stats.bytes)},
+ offsetof(struct vhost_queue, stats.xstats[VHOST_BYTE])},
{"missed_pkts",
- offsetof(struct vhost_queue, stats.missed_pkts)},
+ offsetof(struct vhost_queue, stats.xstats[VHOST_MISSED_PKT])},
{"broadcast_packets",
offsetof(struct vhost_queue, stats.xstats[VHOST_BROADCAST_PKT])},
{"multicast_packets",
@@ -287,23 +290,6 @@ vhost_dev_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
if (n < nxstats)
return nxstats;
- for (i = 0; i < dev->data->nb_rx_queues; i++) {
- vq = dev->data->rx_queues[i];
- if (!vq)
- continue;
- vq->stats.xstats[VHOST_UNICAST_PKT] = vq->stats.pkts
- - (vq->stats.xstats[VHOST_BROADCAST_PKT]
- + vq->stats.xstats[VHOST_MULTICAST_PKT]);
- }
- for (i = 0; i < dev->data->nb_tx_queues; i++) {
- vq = dev->data->tx_queues[i];
- if (!vq)
- continue;
- vq->stats.xstats[VHOST_UNICAST_PKT] = vq->stats.pkts
- + vq->stats.missed_pkts
- - (vq->stats.xstats[VHOST_BROADCAST_PKT]
- + vq->stats.xstats[VHOST_MULTICAST_PKT]);
- }
for (t = 0; t < VHOST_NB_XSTATS_RXPORT; t++) {
xstats[count].value = 0;
for (i = 0; i < dev->data->nb_rx_queues; i++) {
@@ -334,7 +320,7 @@ vhost_dev_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
}
static inline void
-vhost_count_multicast_broadcast(struct vhost_queue *vq,
+vhost_count_xcast_packets(struct vhost_queue *vq,
struct rte_mbuf *mbuf)
{
struct rte_ether_addr *ea = NULL;
@@ -346,20 +332,27 @@ vhost_count_multicast_broadcast(struct vhost_queue *vq,
pstats->xstats[VHOST_BROADCAST_PKT]++;
else
pstats->xstats[VHOST_MULTICAST_PKT]++;
+ } else {
+ pstats->xstats[VHOST_UNICAST_PKT]++;
}
}
static void
-vhost_update_packet_xstats(struct vhost_queue *vq,
- struct rte_mbuf **bufs,
- uint16_t count)
+vhost_update_packet_xstats(struct vhost_queue *vq, struct rte_mbuf **bufs,
+ uint16_t count, uint64_t nb_bytes,
+ uint64_t nb_missed)
{
uint32_t pkt_len = 0;
uint64_t i = 0;
uint64_t index;
struct vhost_stats *pstats = &vq->stats;
+ pstats->xstats[VHOST_BYTE] += nb_bytes;
+ pstats->xstats[VHOST_MISSED_PKT] += nb_missed;
+ pstats->xstats[VHOST_UNICAST_PKT] += nb_missed;
+
for (i = 0; i < count ; i++) {
+ pstats->xstats[VHOST_PKT]++;
pkt_len = bufs[i]->pkt_len;
if (pkt_len == 64) {
pstats->xstats[VHOST_64_PKT]++;
@@ -375,7 +368,7 @@ vhost_update_packet_xstats(struct vhost_queue *vq,
else if (pkt_len > 1522)
pstats->xstats[VHOST_1523_TO_MAX_PKT]++;
}
- vhost_count_multicast_broadcast(vq, bufs[i]);
+ vhost_count_xcast_packets(vq, bufs[i]);
}
}
@@ -385,6 +378,7 @@ eth_vhost_rx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
struct vhost_queue *r = q;
uint16_t i, nb_rx = 0;
uint16_t nb_receive = nb_bufs;
+ uint64_t nb_bytes = 0;
if (unlikely(rte_atomic32_read(&r->allow_queuing) == 0))
return 0;
@@ -419,10 +413,11 @@ eth_vhost_rx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
if (r->internal->vlan_strip)
rte_vlan_strip(bufs[i]);
- r->stats.bytes += bufs[i]->pkt_len;
+ nb_bytes += bufs[i]->pkt_len;
}
- vhost_update_packet_xstats(r, bufs, nb_rx);
+ r->stats.bytes += nb_bytes;
+ vhost_update_packet_xstats(r, bufs, nb_rx, nb_bytes, 0);
out:
rte_atomic32_set(&r->while_queuing, 0);
@@ -436,6 +431,8 @@ eth_vhost_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
struct vhost_queue *r = q;
uint16_t i, nb_tx = 0;
uint16_t nb_send = 0;
+ uint64_t nb_bytes = 0;
+ uint64_t nb_missed = 0;
if (unlikely(rte_atomic32_read(&r->allow_queuing) == 0))
return 0;
@@ -476,20 +473,23 @@ eth_vhost_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
break;
}
+ for (i = 0; likely(i < nb_tx); i++)
+ nb_bytes += bufs[i]->pkt_len;
+
+ nb_missed = nb_bufs - nb_tx;
+
r->stats.pkts += nb_tx;
+ r->stats.bytes += nb_bytes;
r->stats.missed_pkts += nb_bufs - nb_tx;
- for (i = 0; likely(i < nb_tx); i++)
- r->stats.bytes += bufs[i]->pkt_len;
-
- vhost_update_packet_xstats(r, bufs, nb_tx);
+ vhost_update_packet_xstats(r, bufs, nb_tx, nb_bytes, nb_missed);
- /* According to RFC2863 page42 section ifHCOutMulticastPkts and
- * ifHCOutBroadcastPkts, the counters "multicast" and "broadcast"
- * are increased when packets are not transmitted successfully.
+ /* According to RFC2863, ifHCOutUcastPkts, ifHCOutMulticastPkts and
+ * ifHCOutBroadcastPkts counters are increased when packets are not
+ * transmitted successfully.
*/
for (i = nb_tx; i < nb_bufs; i++)
- vhost_count_multicast_broadcast(r, bufs[i]);
+ vhost_count_xcast_packets(r, bufs[i]);
for (i = 0; likely(i < nb_tx); i++)
rte_pktmbuf_free(bufs[i]);
--
2.18.4
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [dpdk-dev] [PATCH v3] net/vhost: fix xstats wrong after clearing stats
2020-10-15 17:49 ` [dpdk-dev] [PATCH v3] " David Christensen
@ 2020-10-16 1:38 ` Xia, Chenbo
2020-10-23 10:54 ` Maxime Coquelin
2020-10-23 11:22 ` Maxime Coquelin
2 siblings, 0 replies; 11+ messages in thread
From: Xia, Chenbo @ 2020-10-16 1:38 UTC (permalink / raw)
To: David Christensen, dev, maxime.coquelin, Wang, Zhihong; +Cc: stable
> -----Original Message-----
> From: David Christensen <drc@linux.vnet.ibm.com>
> Sent: Friday, October 16, 2020 1:50 AM
> To: dev@dpdk.org; maxime.coquelin@redhat.com; Xia, Chenbo
> <chenbo.xia@intel.com>; Wang, Zhihong <zhihong.wang@intel.com>
> Cc: stable@dpdk.org; David Christensen <drc@linux.vnet.ibm.com>
> Subject: [PATCH v3] net/vhost: fix xstats wrong after clearing stats
>
> The PMD API allows stats and xstats values to be cleared separately.
> This is a problem for the vhost PMD since some of the xstats values are
> derived from existing stats values. For example:
>
> testpmd> show port xstats all
> ...
> tx_unicast_packets: 17562959
> ...
> testpmd> clear port stats all
> ...
> show port xstats all
> ...
> tx_unicast_packets: 18446744073709551615
> ...
>
> Modify the driver so that stats and xstats values are stored, updated,
> and cleared separately.
>
> Fixes: 4d6cf2ac93dc ("net/vhost: add extended statistics")
> Cc: stable@dpdk.org
>
> Signed-off-by: David Christensen <drc@linux.vnet.ibm.com>
> ---
> v3:
> * Modified comment that unicast packets include unsent packets
> * Change Cc: to stable@dpdk.org
> v2:
> * Removed newly unused vq loops
> * Added "fixes" message
> * Renamed vhost_count_multicast_broadcast to vhost_count_xcast_packets
>
> drivers/net/vhost/rte_eth_vhost.c | 76 +++++++++++++++----------------
> 1 file changed, 38 insertions(+), 38 deletions(-)
>
> diff --git a/drivers/net/vhost/rte_eth_vhost.c
> b/drivers/net/vhost/rte_eth_vhost.c
> index e55278af6..886b3afe0 100644
> --- a/drivers/net/vhost/rte_eth_vhost.c
> +++ b/drivers/net/vhost/rte_eth_vhost.c
> @@ -73,6 +73,9 @@ enum vhost_xstats_pkts {
> VHOST_BROADCAST_PKT,
> VHOST_MULTICAST_PKT,
> VHOST_UNICAST_PKT,
> + VHOST_PKT,
> + VHOST_BYTE,
> + VHOST_MISSED_PKT,
> VHOST_ERRORS_PKT,
> VHOST_ERRORS_FRAGMENTED,
> VHOST_ERRORS_JABBER,
> @@ -149,11 +152,11 @@ struct vhost_xstats_name_off {
> /* [rx]_is prepended to the name string here */
> static const struct vhost_xstats_name_off vhost_rxport_stat_strings[] = {
> {"good_packets",
> - offsetof(struct vhost_queue, stats.pkts)},
> + offsetof(struct vhost_queue, stats.xstats[VHOST_PKT])},
> {"total_bytes",
> - offsetof(struct vhost_queue, stats.bytes)},
> + offsetof(struct vhost_queue, stats.xstats[VHOST_BYTE])},
> {"missed_pkts",
> - offsetof(struct vhost_queue, stats.missed_pkts)},
> + offsetof(struct vhost_queue, stats.xstats[VHOST_MISSED_PKT])},
> {"broadcast_packets",
> offsetof(struct vhost_queue, stats.xstats[VHOST_BROADCAST_PKT])},
> {"multicast_packets",
> @@ -189,11 +192,11 @@ static const struct vhost_xstats_name_off
> vhost_rxport_stat_strings[] = {
> /* [tx]_ is prepended to the name string here */
> static const struct vhost_xstats_name_off vhost_txport_stat_strings[] = {
> {"good_packets",
> - offsetof(struct vhost_queue, stats.pkts)},
> + offsetof(struct vhost_queue, stats.xstats[VHOST_PKT])},
> {"total_bytes",
> - offsetof(struct vhost_queue, stats.bytes)},
> + offsetof(struct vhost_queue, stats.xstats[VHOST_BYTE])},
> {"missed_pkts",
> - offsetof(struct vhost_queue, stats.missed_pkts)},
> + offsetof(struct vhost_queue, stats.xstats[VHOST_MISSED_PKT])},
> {"broadcast_packets",
> offsetof(struct vhost_queue, stats.xstats[VHOST_BROADCAST_PKT])},
> {"multicast_packets",
> @@ -287,23 +290,6 @@ vhost_dev_xstats_get(struct rte_eth_dev *dev, struct
> rte_eth_xstat *xstats,
> if (n < nxstats)
> return nxstats;
>
> - for (i = 0; i < dev->data->nb_rx_queues; i++) {
> - vq = dev->data->rx_queues[i];
> - if (!vq)
> - continue;
> - vq->stats.xstats[VHOST_UNICAST_PKT] = vq->stats.pkts
> - - (vq->stats.xstats[VHOST_BROADCAST_PKT]
> - + vq->stats.xstats[VHOST_MULTICAST_PKT]);
> - }
> - for (i = 0; i < dev->data->nb_tx_queues; i++) {
> - vq = dev->data->tx_queues[i];
> - if (!vq)
> - continue;
> - vq->stats.xstats[VHOST_UNICAST_PKT] = vq->stats.pkts
> - + vq->stats.missed_pkts
> - - (vq->stats.xstats[VHOST_BROADCAST_PKT]
> - + vq->stats.xstats[VHOST_MULTICAST_PKT]);
> - }
> for (t = 0; t < VHOST_NB_XSTATS_RXPORT; t++) {
> xstats[count].value = 0;
> for (i = 0; i < dev->data->nb_rx_queues; i++) {
> @@ -334,7 +320,7 @@ vhost_dev_xstats_get(struct rte_eth_dev *dev, struct
> rte_eth_xstat *xstats,
> }
>
> static inline void
> -vhost_count_multicast_broadcast(struct vhost_queue *vq,
> +vhost_count_xcast_packets(struct vhost_queue *vq,
> struct rte_mbuf *mbuf)
> {
> struct rte_ether_addr *ea = NULL;
> @@ -346,20 +332,27 @@ vhost_count_multicast_broadcast(struct vhost_queue
> *vq,
> pstats->xstats[VHOST_BROADCAST_PKT]++;
> else
> pstats->xstats[VHOST_MULTICAST_PKT]++;
> + } else {
> + pstats->xstats[VHOST_UNICAST_PKT]++;
> }
> }
>
> static void
> -vhost_update_packet_xstats(struct vhost_queue *vq,
> - struct rte_mbuf **bufs,
> - uint16_t count)
> +vhost_update_packet_xstats(struct vhost_queue *vq, struct rte_mbuf **bufs,
> + uint16_t count, uint64_t nb_bytes,
> + uint64_t nb_missed)
> {
> uint32_t pkt_len = 0;
> uint64_t i = 0;
> uint64_t index;
> struct vhost_stats *pstats = &vq->stats;
>
> + pstats->xstats[VHOST_BYTE] += nb_bytes;
> + pstats->xstats[VHOST_MISSED_PKT] += nb_missed;
> + pstats->xstats[VHOST_UNICAST_PKT] += nb_missed;
> +
> for (i = 0; i < count ; i++) {
> + pstats->xstats[VHOST_PKT]++;
> pkt_len = bufs[i]->pkt_len;
> if (pkt_len == 64) {
> pstats->xstats[VHOST_64_PKT]++;
> @@ -375,7 +368,7 @@ vhost_update_packet_xstats(struct vhost_queue *vq,
> else if (pkt_len > 1522)
> pstats->xstats[VHOST_1523_TO_MAX_PKT]++;
> }
> - vhost_count_multicast_broadcast(vq, bufs[i]);
> + vhost_count_xcast_packets(vq, bufs[i]);
> }
> }
>
> @@ -385,6 +378,7 @@ eth_vhost_rx(void *q, struct rte_mbuf **bufs, uint16_t
> nb_bufs)
> struct vhost_queue *r = q;
> uint16_t i, nb_rx = 0;
> uint16_t nb_receive = nb_bufs;
> + uint64_t nb_bytes = 0;
>
> if (unlikely(rte_atomic32_read(&r->allow_queuing) == 0))
> return 0;
> @@ -419,10 +413,11 @@ eth_vhost_rx(void *q, struct rte_mbuf **bufs,
> uint16_t nb_bufs)
> if (r->internal->vlan_strip)
> rte_vlan_strip(bufs[i]);
>
> - r->stats.bytes += bufs[i]->pkt_len;
> + nb_bytes += bufs[i]->pkt_len;
> }
>
> - vhost_update_packet_xstats(r, bufs, nb_rx);
> + r->stats.bytes += nb_bytes;
> + vhost_update_packet_xstats(r, bufs, nb_rx, nb_bytes, 0);
>
> out:
> rte_atomic32_set(&r->while_queuing, 0);
> @@ -436,6 +431,8 @@ eth_vhost_tx(void *q, struct rte_mbuf **bufs, uint16_t
> nb_bufs)
> struct vhost_queue *r = q;
> uint16_t i, nb_tx = 0;
> uint16_t nb_send = 0;
> + uint64_t nb_bytes = 0;
> + uint64_t nb_missed = 0;
>
> if (unlikely(rte_atomic32_read(&r->allow_queuing) == 0))
> return 0;
> @@ -476,20 +473,23 @@ eth_vhost_tx(void *q, struct rte_mbuf **bufs,
> uint16_t nb_bufs)
> break;
> }
>
> + for (i = 0; likely(i < nb_tx); i++)
> + nb_bytes += bufs[i]->pkt_len;
> +
> + nb_missed = nb_bufs - nb_tx;
> +
> r->stats.pkts += nb_tx;
> + r->stats.bytes += nb_bytes;
> r->stats.missed_pkts += nb_bufs - nb_tx;
>
> - for (i = 0; likely(i < nb_tx); i++)
> - r->stats.bytes += bufs[i]->pkt_len;
> -
> - vhost_update_packet_xstats(r, bufs, nb_tx);
> + vhost_update_packet_xstats(r, bufs, nb_tx, nb_bytes, nb_missed);
>
> - /* According to RFC2863 page42 section ifHCOutMulticastPkts and
> - * ifHCOutBroadcastPkts, the counters "multicast" and "broadcast"
> - * are increased when packets are not transmitted successfully.
> + /* According to RFC2863, ifHCOutUcastPkts, ifHCOutMulticastPkts and
> + * ifHCOutBroadcastPkts counters are increased when packets are not
> + * transmitted successfully.
> */
> for (i = nb_tx; i < nb_bufs; i++)
> - vhost_count_multicast_broadcast(r, bufs[i]);
> + vhost_count_xcast_packets(r, bufs[i]);
>
> for (i = 0; likely(i < nb_tx); i++)
> rte_pktmbuf_free(bufs[i]);
> --
> 2.18.4
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [dpdk-dev] [PATCH v3] net/vhost: fix xstats wrong after clearing stats
2020-10-15 17:49 ` [dpdk-dev] [PATCH v3] " David Christensen
2020-10-16 1:38 ` Xia, Chenbo
@ 2020-10-23 10:54 ` Maxime Coquelin
2020-10-23 11:22 ` Maxime Coquelin
2 siblings, 0 replies; 11+ messages in thread
From: Maxime Coquelin @ 2020-10-23 10:54 UTC (permalink / raw)
To: David Christensen, dev, chenbo.xia, zhihong.wang; +Cc: stable
On 10/15/20 7:49 PM, David Christensen wrote:
> The PMD API allows stats and xstats values to be cleared separately.
> This is a problem for the vhost PMD since some of the xstats values are
> derived from existing stats values. For example:
>
> testpmd> show port xstats all
> ...
> tx_unicast_packets: 17562959
> ...
> testpmd> clear port stats all
> ...
> show port xstats all
> ...
> tx_unicast_packets: 18446744073709551615
> ...
>
> Modify the driver so that stats and xstats values are stored, updated,
> and cleared separately.
>
> Fixes: 4d6cf2ac93dc ("net/vhost: add extended statistics")
> Cc: stable@dpdk.org
>
> Signed-off-by: David Christensen <drc@linux.vnet.ibm.com>
> ---
> v3:
> * Modified comment that unicast packets include unsent packets
> * Change Cc: to stable@dpdk.org
> v2:
> * Removed newly unused vq loops
> * Added "fixes" message
> * Renamed vhost_count_multicast_broadcast to vhost_count_xcast_packets
>
> drivers/net/vhost/rte_eth_vhost.c | 76 +++++++++++++++----------------
> 1 file changed, 38 insertions(+), 38 deletions(-)
>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Thanks,
Maxime
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [dpdk-dev] [PATCH v3] net/vhost: fix xstats wrong after clearing stats
2020-10-15 17:49 ` [dpdk-dev] [PATCH v3] " David Christensen
2020-10-16 1:38 ` Xia, Chenbo
2020-10-23 10:54 ` Maxime Coquelin
@ 2020-10-23 11:22 ` Maxime Coquelin
2 siblings, 0 replies; 11+ messages in thread
From: Maxime Coquelin @ 2020-10-23 11:22 UTC (permalink / raw)
To: David Christensen, dev, chenbo.xia, zhihong.wang; +Cc: stable
On 10/15/20 7:49 PM, David Christensen wrote:
> The PMD API allows stats and xstats values to be cleared separately.
> This is a problem for the vhost PMD since some of the xstats values are
> derived from existing stats values. For example:
>
> testpmd> show port xstats all
> ...
> tx_unicast_packets: 17562959
> ...
> testpmd> clear port stats all
> ...
> show port xstats all
> ...
> tx_unicast_packets: 18446744073709551615
> ...
>
> Modify the driver so that stats and xstats values are stored, updated,
> and cleared separately.
>
> Fixes: 4d6cf2ac93dc ("net/vhost: add extended statistics")
> Cc: stable@dpdk.org
>
> Signed-off-by: David Christensen <drc@linux.vnet.ibm.com>
> ---
> v3:
> * Modified comment that unicast packets include unsent packets
> * Change Cc: to stable@dpdk.org
> v2:
> * Removed newly unused vq loops
> * Added "fixes" message
> * Renamed vhost_count_multicast_broadcast to vhost_count_xcast_packets
>
> drivers/net/vhost/rte_eth_vhost.c | 76 +++++++++++++++----------------
> 1 file changed, 38 insertions(+), 38 deletions(-)
Applied to dpdk-next-virtio/main.
Thanks,
Maxime
^ permalink raw reply [flat|nested] 11+ messages in thread
end of thread, other threads:[~2020-10-23 11:22 UTC | newest]
Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-09-02 17:03 [dpdk-dev] [PATCH] net/vhost: fix xstats wrong after clearing stats David Christensen
2020-09-11 7:44 ` Xia, Chenbo
2020-09-23 8:07 ` Maxime Coquelin
2020-10-05 17:43 ` David Christensen
2020-10-06 7:32 ` Maxime Coquelin
2020-10-06 21:23 ` [dpdk-dev] [PATCH v2] " David Christensen
2020-10-09 3:13 ` Xia, Chenbo
2020-10-15 17:49 ` [dpdk-dev] [PATCH v3] " David Christensen
2020-10-16 1:38 ` Xia, Chenbo
2020-10-23 10:54 ` Maxime Coquelin
2020-10-23 11:22 ` Maxime Coquelin
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