With Make build system, RTE_PMD_PACKET_PREFETCH was enabled by default. It got lost when transitioning to Meson build system.
In order to avoid performance changes, this patch enables packet prefetching in rte_config.h. Reported-by: Marvin Liu <[email protected]> Suggested-by: David Marchand <[email protected]> Signed-off-by: Maxime Coquelin <[email protected]> --- Hi Bruce, We were not sure whether adding below Fixes tag so that it is backported to LTSes. What do you think? Fixes: 9314afb68a53 ("drivers: add infrastructure for meson build") Cc: [email protected] config/rte_config.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/config/rte_config.h b/config/rte_config.h index 25219f04af..a0b5160ff2 100644 --- a/config/rte_config.h +++ b/config/rte_config.h @@ -103,6 +103,9 @@ /****** driver defines ********/ +/* Packet prefetching in PMDs */ +#define RTE_PMD_PACKET_PREFETCH 1 + /* QuickAssist device */ /* Max. number of QuickAssist devices which can be attached */ #define RTE_PMD_QAT_MAX_PCI_DEVICES 48 -- 2.26.2
