net/i40e changes recommended Rx ring_size after device start
https://bugs.dpdk.org/show_bug.cgi?id=1132
Bug ID: 1132
Summary: net/i40e changes recommended Rx ring_size after device
start
Product: DPDK
Version: 22.11
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: ethdev
Assignee: [email protected]
Reporter: [email protected]Target Milestone: ---
net/i40e changes recommended Rx ring_size after device start
NIC is Intel X710
It does not make sense since all Rx queues are typically already configured and started.
It happens because of link_speeds condition above:
790 »·······} else {
3791 »·······»·······/* For X710 */
3792 »·······»·······dev_info->speed_capa = RTE_ETH_LINK_SPEED_1G |RTE_ETH_LINK_SPEED_10G;
3793 »·······»·······dev_info->default_rxportconf.nb_queues = 1; 3794 »·······»·······dev_info->default_txportconf.nb_queues = 1; 3795 »·······»·······if (dev->data->dev_conf.link_speeds &RTE_ETH_LINK_SPEED_10G) {
3796 »·······»·······»·······dev_info->default_rxportconf.ring_size = 512; 3797 »·······»·······»·······dev_info->default_txportconf.ring_size = 256; 3798 »·······»·······} else {
3799 »·······»·······»·······dev_info->default_rxportconf.ring_size = 256; 3800 »·······»·······»·······dev_info->default_txportconf.ring_size = 256; 3801 »·······»·······}
3802 »·······}
which are updated on device start in i40e_apply_link_speed().
Before start default_rxportconf.ring_size is 256, after start it is 512.
Found using [1]
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https://bugs.dpdk.org/show_bug.cgi?id=1132
Andrew Rybchenko ([email protected]) changed:
What |Removed |Added
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Assignee|[email protected] |[email protected] CC| |[email protected], | |[email protected]
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