* [PATCH] net/vmxnet3: disable RSS for single queue configuration for ESX8.0+ versions
@ 2025-10-22 12:58 Amiya Ranjan Mohakud
2025-10-22 13:32 ` Amiya Ranjan Mohakud
` (3 more replies)
0 siblings, 4 replies; 9+ messages in thread
From: Amiya Ranjan Mohakud @ 2025-10-22 12:58 UTC (permalink / raw)
To: dev; +Cc: amiyaranjan.mohakud, stable
This fixes the issue of v4 RSS configuration failure in vmxnet3_v4_rss_configure
while writing to BAR register. It's very specific to single queue conifuguration.
Ref: https://mails.dpdk.org/archives/users/2025-April/008236.html
Bugzilla ID:1789
Cc: stable@dpdk.org
Signed-off-by: Amiya Ranjan Mohakud <amiyaranjan.mohakud@gmail.com>
---
drivers/net/vmxnet3/vmxnet3_ethdev.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/net/vmxnet3/vmxnet3_ethdev.c b/drivers/net/vmxnet3/vmxnet3_ethdev.c
index f4cdb1bb31..fee4c23091 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethdev.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethdev.c
@@ -534,6 +534,12 @@ vmxnet3_dev_configure(struct rte_eth_dev *dev)
PMD_INIT_FUNC_TRACE();
+ /* Disabling RSS for single queue pair */
+ if (dev->data->nb_rx_queues == 1) {
+ dev->data->dev_conf.rxmode.mq_mode = ETH_MQ_RX_NONE;
+ PMD_INIT_LOG(ERR, "WARN: Disabling RSS for single Rx queue");
+ }
+
if (dev->data->dev_conf.rxmode.mq_mode & RTE_ETH_MQ_RX_RSS_FLAG)
dev->data->dev_conf.rxmode.offloads |= RTE_ETH_RX_OFFLOAD_RSS_HASH;
--
2.39.5 (Apple Git-154)
^ permalink raw reply [flat|nested] 9+ messages in thread* [PATCH] net/vmxnet3: disable RSS for single queue configuration for ESX8.0+ versions
2025-10-22 12:58 [PATCH] net/vmxnet3: disable RSS for single queue configuration for ESX8.0+ versions Amiya Ranjan Mohakud
@ 2025-10-22 13:32 ` Amiya Ranjan Mohakud
2025-10-22 13:35 ` Amiya Ranjan Mohakud
` (2 subsequent siblings)
3 siblings, 0 replies; 9+ messages in thread
From: Amiya Ranjan Mohakud @ 2025-10-22 13:32 UTC (permalink / raw)
To: dev; +Cc: amiyaranjan.mohakud, stable
It fixes the issue of v4 RSS configuration failure in
vmxnet3_v4_rss_configure() whilw writing to BAR register. It's very
specific to single queue configuration.
https://mails.dpdk.org/archives/users/2025-April/008236.html
Bugzilla ID:1789
Cc: stable@dpdk.org
Signed-off-by: Amiya Ranjan Mohakud <amiyaranjan.mohakud@gmail.com>
---
drivers/net/vmxnet3/vmxnet3_ethdev.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/net/vmxnet3/vmxnet3_ethdev.c b/drivers/net/vmxnet3/vmxnet3_ethdev.c
index f4cdb1bb31..3c0ddba80c 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethdev.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethdev.c
@@ -534,6 +534,12 @@ vmxnet3_dev_configure(struct rte_eth_dev *dev)
PMD_INIT_FUNC_TRACE();
+ /* Disabling RSS for single queue pair */
+ if (dev->data->nb_rx_queues == 1) {
+ dev->data->dev_conf.rxmode.mq_mode = RTE_ETH_MQ_RX_NONE;
+ PMD_INIT_LOG(ERR, "WARN: Disabling RSS for single Rx queue");
+ }
+
if (dev->data->dev_conf.rxmode.mq_mode & RTE_ETH_MQ_RX_RSS_FLAG)
dev->data->dev_conf.rxmode.offloads |= RTE_ETH_RX_OFFLOAD_RSS_HASH;
--
2.39.5 (Apple Git-154)
^ permalink raw reply [flat|nested] 9+ messages in thread* [PATCH] net/vmxnet3: disable RSS for single queue configuration for ESX8.0+ versions
2025-10-22 12:58 [PATCH] net/vmxnet3: disable RSS for single queue configuration for ESX8.0+ versions Amiya Ranjan Mohakud
2025-10-22 13:32 ` Amiya Ranjan Mohakud
@ 2025-10-22 13:35 ` Amiya Ranjan Mohakud
2025-10-22 15:56 ` [PATCH v2] " Amiya Ranjan Mohakud
2025-10-22 16:28 ` [PATCH] " Stephen Hemminger
2025-10-22 16:32 ` Ronak Doshi
3 siblings, 1 reply; 9+ messages in thread
From: Amiya Ranjan Mohakud @ 2025-10-22 13:35 UTC (permalink / raw)
To: dev; +Cc: amiyaranjan.mohakud, stable
It fixes the issue of v4 RSS configuration failure in
vmxnet3_v4_rss_configure() whilw writing to BAR register. It's very
specific to single queue configuration.
https://mails.dpdk.org/archives/users/2025-April/008236.html
Bugzilla ID:1789
Cc: stable@dpdk.org
Signed-off-by: Amiya Ranjan Mohakud <amiyaranjan.mohakud@gmail.com>
---
drivers/net/vmxnet3/vmxnet3_ethdev.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/net/vmxnet3/vmxnet3_ethdev.c b/drivers/net/vmxnet3/vmxnet3_ethdev.c
index f4cdb1bb31..3c0ddba80c 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethdev.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethdev.c
@@ -534,6 +534,12 @@ vmxnet3_dev_configure(struct rte_eth_dev *dev)
PMD_INIT_FUNC_TRACE();
+ /* Disabling RSS for single queue pair */
+ if (dev->data->nb_rx_queues == 1) {
+ dev->data->dev_conf.rxmode.mq_mode = RTE_ETH_MQ_RX_NONE;
+ PMD_INIT_LOG(ERR, "WARN: Disabling RSS for single Rx queue");
+ }
+
if (dev->data->dev_conf.rxmode.mq_mode & RTE_ETH_MQ_RX_RSS_FLAG)
dev->data->dev_conf.rxmode.offloads |= RTE_ETH_RX_OFFLOAD_RSS_HASH;
--
2.39.5 (Apple Git-154)
^ permalink raw reply [flat|nested] 9+ messages in thread* [PATCH v2] net/vmxnet3: disable RSS for single queue configuration for ESX8.0+ versions
2025-10-22 13:35 ` Amiya Ranjan Mohakud
@ 2025-10-22 15:56 ` Amiya Ranjan Mohakud
2025-10-23 7:22 ` [PATCH v3] " Amiya Ranjan Mohakud
` (2 more replies)
0 siblings, 3 replies; 9+ messages in thread
From: Amiya Ranjan Mohakud @ 2025-10-22 15:56 UTC (permalink / raw)
To: dev; +Cc: amiyaranjan.mohakud, stable
It fixes the issue of v4 RSS configuration failure in
vmxnet3_v4_rss_configure() while writing to BAR register. It's very
specific to single queue configuration.
https://mails.dpdk.org/archives/users/2025-April/008236.html
Bugzilla ID:1789
Cc: stable@dpdk.org
v2:
- Fixed typo in commit message
Signed-off-by: Amiya Ranjan Mohakud <amiyaranjan.mohakud@gmail.com>
---
drivers/net/vmxnet3/vmxnet3_ethdev.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/net/vmxnet3/vmxnet3_ethdev.c b/drivers/net/vmxnet3/vmxnet3_ethdev.c
index f4cdb1bb31..3c0ddba80c 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethdev.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethdev.c
@@ -534,6 +534,12 @@ vmxnet3_dev_configure(struct rte_eth_dev *dev)
PMD_INIT_FUNC_TRACE();
+ /* Disabling RSS for single queue pair */
+ if (dev->data->nb_rx_queues == 1) {
+ dev->data->dev_conf.rxmode.mq_mode = RTE_ETH_MQ_RX_NONE;
+ PMD_INIT_LOG(ERR, "WARN: Disabling RSS for single Rx queue");
+ }
+
if (dev->data->dev_conf.rxmode.mq_mode & RTE_ETH_MQ_RX_RSS_FLAG)
dev->data->dev_conf.rxmode.offloads |= RTE_ETH_RX_OFFLOAD_RSS_HASH;
--
2.39.5 (Apple Git-154)
^ permalink raw reply [flat|nested] 9+ messages in thread* [PATCH v3] net/vmxnet3: disable RSS for single queue configuration for ESX8.0+ versions
2025-10-22 15:56 ` [PATCH v2] " Amiya Ranjan Mohakud
@ 2025-10-23 7:22 ` Amiya Ranjan Mohakud
2025-10-23 8:24 ` Amiya Ranjan Mohakud
2025-10-23 8:30 ` Amiya Ranjan Mohakud
2 siblings, 0 replies; 9+ messages in thread
From: Amiya Ranjan Mohakud @ 2025-10-23 7:22 UTC (permalink / raw)
To: dev; +Cc: amiyaranjan.mohakud, stable
It fixes the issue of v4 RSS configuration failure in
vmxnet3_v4_rss_configure() while writing to BAR register. It's very
specific to single queue configuration.
https://mails.dpdk.org/archives/users/2025-April/008236.html
Bugzilla ID:1789
Cc: stable@dpdk.org
v2:
- Fixed typo in commit message
v3:
- Checking if RSS is already enabled
Signed-off-by: Amiya Ranjan Mohakud <amiyaranjan.mohakud@gmail.com>
---
drivers/net/vmxnet3/vmxnet3_ethdev.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/net/vmxnet3/vmxnet3_ethdev.c b/drivers/net/vmxnet3/vmxnet3_ethdev.c
index f4cdb1bb31..a0306af86c 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethdev.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethdev.c
@@ -534,6 +534,13 @@ vmxnet3_dev_configure(struct rte_eth_dev *dev)
PMD_INIT_FUNC_TRACE();
+ /* Disabling RSS for single queue pair */
+ if (dev->data->nb_rx_queues == 1 &&
+ dev->data->dev_conf.rxmode.mq_mode == RTE_ETH_MQ_RX_RSS) {
+ dev->data->dev_conf.rxmode.mq_mode = RTE_ETH_MQ_RX_NONE;
+ PMD_INIT_LOG(ERR, "WARN: Disabling RSS for single Rx queue");
+ }
+
if (dev->data->dev_conf.rxmode.mq_mode & RTE_ETH_MQ_RX_RSS_FLAG)
dev->data->dev_conf.rxmode.offloads |= RTE_ETH_RX_OFFLOAD_RSS_HASH;
--
2.39.5 (Apple Git-154)
^ permalink raw reply [flat|nested] 9+ messages in thread* [PATCH v3] net/vmxnet3: disable RSS for single queue configuration for ESX8.0+ versions
2025-10-22 15:56 ` [PATCH v2] " Amiya Ranjan Mohakud
2025-10-23 7:22 ` [PATCH v3] " Amiya Ranjan Mohakud
@ 2025-10-23 8:24 ` Amiya Ranjan Mohakud
2025-10-23 8:30 ` Amiya Ranjan Mohakud
2 siblings, 0 replies; 9+ messages in thread
From: Amiya Ranjan Mohakud @ 2025-10-23 8:24 UTC (permalink / raw)
To: dev; +Cc: amiyaranjan.mohakud, stable
It fixes the issue of v4 RSS configuration failure in
vmxnet3_v4_rss_configure() while writing to BAR register. It's very
specific to single queue configuration.
https://mails.dpdk.org/archives/users/2025-April/008236.html
Bugzilla ID:1789
Fixes: 52ec00f ("net/vmxnet3: fix RSS setting on v4")
Cc: stable@dpdk.org
v2:
- Fixed typo in commit message
v3:
- Checking if RSS is already enabled
Signed-off-by: Amiya Ranjan Mohakud <amiyaranjan.mohakud@gmail.com>
---
drivers/net/vmxnet3/vmxnet3_ethdev.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/net/vmxnet3/vmxnet3_ethdev.c b/drivers/net/vmxnet3/vmxnet3_ethdev.c
index f4cdb1bb31..a0306af86c 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethdev.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethdev.c
@@ -534,6 +534,13 @@ vmxnet3_dev_configure(struct rte_eth_dev *dev)
PMD_INIT_FUNC_TRACE();
+ /* Disabling RSS for single queue pair */
+ if (dev->data->nb_rx_queues == 1 &&
+ dev->data->dev_conf.rxmode.mq_mode == RTE_ETH_MQ_RX_RSS) {
+ dev->data->dev_conf.rxmode.mq_mode = RTE_ETH_MQ_RX_NONE;
+ PMD_INIT_LOG(ERR, "WARN: Disabling RSS for single Rx queue");
+ }
+
if (dev->data->dev_conf.rxmode.mq_mode & RTE_ETH_MQ_RX_RSS_FLAG)
dev->data->dev_conf.rxmode.offloads |= RTE_ETH_RX_OFFLOAD_RSS_HASH;
--
2.39.5 (Apple Git-154)
^ permalink raw reply [flat|nested] 9+ messages in thread* [PATCH v3] net/vmxnet3: disable RSS for single queue configuration for ESX8.0+ versions
2025-10-22 15:56 ` [PATCH v2] " Amiya Ranjan Mohakud
2025-10-23 7:22 ` [PATCH v3] " Amiya Ranjan Mohakud
2025-10-23 8:24 ` Amiya Ranjan Mohakud
@ 2025-10-23 8:30 ` Amiya Ranjan Mohakud
2 siblings, 0 replies; 9+ messages in thread
From: Amiya Ranjan Mohakud @ 2025-10-23 8:30 UTC (permalink / raw)
To: dev; +Cc: amiyaranjan.mohakud, stable
It fixes the issue of v4 RSS configuration failure in
vmxnet3_v4_rss_configure() while writing to BAR register. It's very
specific to single queue configuration.
https://mails.dpdk.org/archives/users/2025-April/008236.html
Bugzilla ID:1789
Fixes: 52ec00fd1474e8 ("net/vmxnet3: fix RSS setting on v4")
Cc: stable@dpdk.org
v2:
- Fixed typo in commit message
v3:
- Checking if RSS is already enabled
Signed-off-by: Amiya Ranjan Mohakud <amiyaranjan.mohakud@gmail.com>
---
drivers/net/vmxnet3/vmxnet3_ethdev.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/net/vmxnet3/vmxnet3_ethdev.c b/drivers/net/vmxnet3/vmxnet3_ethdev.c
index f4cdb1bb31..a0306af86c 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethdev.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethdev.c
@@ -534,6 +534,13 @@ vmxnet3_dev_configure(struct rte_eth_dev *dev)
PMD_INIT_FUNC_TRACE();
+ /* Disabling RSS for single queue pair */
+ if (dev->data->nb_rx_queues == 1 &&
+ dev->data->dev_conf.rxmode.mq_mode == RTE_ETH_MQ_RX_RSS) {
+ dev->data->dev_conf.rxmode.mq_mode = RTE_ETH_MQ_RX_NONE;
+ PMD_INIT_LOG(ERR, "WARN: Disabling RSS for single Rx queue");
+ }
+
if (dev->data->dev_conf.rxmode.mq_mode & RTE_ETH_MQ_RX_RSS_FLAG)
dev->data->dev_conf.rxmode.offloads |= RTE_ETH_RX_OFFLOAD_RSS_HASH;
--
2.39.5 (Apple Git-154)
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH] net/vmxnet3: disable RSS for single queue configuration for ESX8.0+ versions
2025-10-22 12:58 [PATCH] net/vmxnet3: disable RSS for single queue configuration for ESX8.0+ versions Amiya Ranjan Mohakud
2025-10-22 13:32 ` Amiya Ranjan Mohakud
2025-10-22 13:35 ` Amiya Ranjan Mohakud
@ 2025-10-22 16:28 ` Stephen Hemminger
2025-10-22 16:32 ` Ronak Doshi
3 siblings, 0 replies; 9+ messages in thread
From: Stephen Hemminger @ 2025-10-22 16:28 UTC (permalink / raw)
To: Amiya Ranjan Mohakud; +Cc: dev, stable
On Wed, 22 Oct 2025 18:28:44 +0530
Amiya Ranjan Mohakud <amiyaranjan.mohakud@gmail.com> wrote:
> This fixes the issue of v4 RSS configuration failure in vmxnet3_v4_rss_configure
> while writing to BAR register. It's very specific to single queue conifuguration.
>
> Ref: https://mails.dpdk.org/archives/users/2025-April/008236.html
>
> Bugzilla ID:1789
> Cc: stable@dpdk.org
>
> Signed-off-by: Amiya Ranjan Mohakud <amiyaranjan.mohakud@gmail.com>
> ---
Queued to next-net with slightly modified commit message.
Could you identify a commit this fixes so that the LTS backport can know
which versions are impacted.
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH] net/vmxnet3: disable RSS for single queue configuration for ESX8.0+ versions
2025-10-22 12:58 [PATCH] net/vmxnet3: disable RSS for single queue configuration for ESX8.0+ versions Amiya Ranjan Mohakud
` (2 preceding siblings ...)
2025-10-22 16:28 ` [PATCH] " Stephen Hemminger
@ 2025-10-22 16:32 ` Ronak Doshi
3 siblings, 0 replies; 9+ messages in thread
From: Ronak Doshi @ 2025-10-22 16:32 UTC (permalink / raw)
To: Amiya Ranjan Mohakud; +Cc: dev, stable
[-- Attachment #1: Type: text/plain, Size: 490 bytes --]
On Wed, Oct 22, 2025 at 5:59 AM Amiya Ranjan Mohakud
<amiyaranjan.mohakud@gmail.com> wrote:
>
> + /* Disabling RSS for single queue pair */
> + if (dev->data->nb_rx_queues == 1) {
> + dev->data->dev_conf.rxmode.mq_mode = ETH_MQ_RX_NONE;
> + PMD_INIT_LOG(ERR, "WARN: Disabling RSS for single Rx queue");
> + }
> +
Can you check if mq_mode had RSS enabled? Otherwise, this will always
LOG as WARN for application using single rx queue.
Thanks,
Ronak
[-- Attachment #2: S/MIME Cryptographic Signature --]
[-- Type: application/pkcs7-signature, Size: 5465 bytes --]
^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2025-10-23 8:30 UTC | newest]
Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
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2025-10-22 12:58 [PATCH] net/vmxnet3: disable RSS for single queue configuration for ESX8.0+ versions Amiya Ranjan Mohakud
2025-10-22 13:32 ` Amiya Ranjan Mohakud
2025-10-22 13:35 ` Amiya Ranjan Mohakud
2025-10-22 15:56 ` [PATCH v2] " Amiya Ranjan Mohakud
2025-10-23 7:22 ` [PATCH v3] " Amiya Ranjan Mohakud
2025-10-23 8:24 ` Amiya Ranjan Mohakud
2025-10-23 8:30 ` Amiya Ranjan Mohakud
2025-10-22 16:28 ` [PATCH] " Stephen Hemminger
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