* [PATCH v1] net/ixgbe: add tuned RxTx parmeters
@ 2018-06-01 10:40 Remy Horton
2018-06-27 13:09 ` Zhang, Qi Z
0 siblings, 1 reply; 2+ messages in thread
From: Remy Horton @ 2018-06-01 10:40 UTC (permalink / raw)
To: dev; +Cc: Wenzhuo Lu, Konstantin Ananyev, John McNamara
The optimal values of several transmission & reception related
parameters, such as burst sizes, descriptor ring sizes, and number
of queues, varies between different network interface devices. This
patch adds the values for the ixgbe PMD.
Signed-off-by: Remy Horton <remy.horton@intel.com>
---
doc/guides/rel_notes/release_18_08.rst | 8 ++++++++
drivers/net/ixgbe/ixgbe_ethdev.c | 8 ++++++++
2 files changed, 16 insertions(+)
diff --git a/doc/guides/rel_notes/release_18_08.rst b/doc/guides/rel_notes/release_18_08.rst
index 5bc23c5..17e6ff9 100644
--- a/doc/guides/rel_notes/release_18_08.rst
+++ b/doc/guides/rel_notes/release_18_08.rst
@@ -41,6 +41,14 @@ New Features
Also, make sure to start the actual text at the margin.
=========================================================
+* **Added ixgbe preferred Rx/Tx parameters.**
+
+ Rather than applications providing explicit Rx and Tx parameters such as
+ queue and burst sizes, they can request that the EAL instead uses preferred
+ values provided by the PMD, falling back to defaults within the EAL if the
+ PMD does not provide any. The provision of such tuned values now includes
+ the ixgbe PMD.
+
API Changes
-----------
diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index 87d2ad0..95fd080 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -3755,6 +3755,14 @@ ixgbe_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
dev_info->speed_capa |= ETH_LINK_SPEED_2_5G;
dev_info->speed_capa |= ETH_LINK_SPEED_5G;
}
+
+ /* Driver-preferred Rx/Tx parameters */
+ dev_info->default_rxportconf.burst_size = 32;
+ dev_info->default_txportconf.burst_size = 32;
+ dev_info->default_rxportconf.nb_queues = 1;
+ dev_info->default_txportconf.nb_queues = 1;
+ dev_info->default_rxportconf.ring_size = 256;
+ dev_info->default_txportconf.ring_size = 256;
}
static const uint32_t *
--
2.9.5
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v1] net/ixgbe: add tuned RxTx parmeters
2018-06-01 10:40 [PATCH v1] net/ixgbe: add tuned RxTx parmeters Remy Horton
@ 2018-06-27 13:09 ` Zhang, Qi Z
0 siblings, 0 replies; 2+ messages in thread
From: Zhang, Qi Z @ 2018-06-27 13:09 UTC (permalink / raw)
To: Horton, Remy, dev; +Cc: Lu, Wenzhuo, Ananyev, Konstantin, Mcnamara, John
> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Remy Horton
> Sent: Friday, June 1, 2018 6:40 PM
> To: dev@dpdk.org
> Cc: Lu, Wenzhuo <wenzhuo.lu@intel.com>; Ananyev, Konstantin
> <konstantin.ananyev@intel.com>; Mcnamara, John
> <john.mcnamara@intel.com>
> Subject: [dpdk-dev] [PATCH v1] net/ixgbe: add tuned RxTx parmeters
>
> The optimal values of several transmission & reception related parameters,
> such as burst sizes, descriptor ring sizes, and number of queues, varies
> between different network interface devices. This patch adds the values for
> the ixgbe PMD.
>
> Signed-off-by: Remy Horton <remy.horton@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
Applied to dpdk-next-net-intel
Thanks!
Qi
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2018-06-27 13:10 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-06-01 10:40 [PATCH v1] net/ixgbe: add tuned RxTx parmeters Remy Horton
2018-06-27 13:09 ` Zhang, Qi Z
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.