From c296747d0e87d2d72cb13357430d6b9a8e4b5969 Mon Sep 17 00:00:00 2001 From: Michael Brown Date: Thu, 16 Oct 2025 16:33:38 +0100 Subject: [PATCH] [ena] Increase receive fill level Experiments suggest that at least some instance types (observed with c6i.large in eu-west-2) experience high packet drop rates with only 16 receive buffers allocated. Increase the fill level to 32 buffers. Signed-off-by: Michael Brown --- src/drivers/net/ena.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/drivers/net/ena.h b/src/drivers/net/ena.h index cfdee5e52..b1150d1a0 100644 --- a/src/drivers/net/ena.h +++ b/src/drivers/net/ena.h @@ -40,7 +40,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); #define ENA_RX_COUNT 128 /** Receive queue maximum fill level */ -#define ENA_RX_FILL 16 +#define ENA_RX_FILL 32 /** Base address low register offset */ #define ENA_BASE_LO 0x0 -- 2.47.3