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drivers: ethernet: sam0: Increase RX buffer count by one

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The SAM GMAC driver is not able to use all of the receive buffers
concurrently. Frames larger than (buffer size) * (buffer count - 1) are
silently dropped. Fix it by adding one to MAIN_QUEUE_RX_DESC_COUNT.

Fixes #55701

Signed-off-by: Brandon Del Bel <delbel@umn.edu>
This commit is contained in:
Brandon Del Bel 2023-04-26 14:03:43 -05:00 • committed by Carles Cufí
commit 83fc732019
1 changed files with 1 additions and 1 deletions
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drivers/ethernet/eth_sam_gmac_priv.h
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@ -42,7 +42,7 @@ BUILD_ASSERT(ARRAY_SIZE(GMAC->GMAC_TBQBAPQ) + 1 == GMAC_QUEUE_NUM,
#define GMAC_ACTIVE_PRIORITY_QUEUE_NUM (GMAC_ACTIVE_QUEUE_NUM - 1)
/** RX descriptors count for main queue */
#define MAIN_QUEUE_RX_DESC_COUNT CONFIG_ETH_SAM_GMAC_BUF_RX_COUNT
#define MAIN_QUEUE_RX_DESC_COUNT (CONFIG_ETH_SAM_GMAC_BUF_RX_COUNT + 1)
/** TX descriptors count for main queue */
#define MAIN_QUEUE_TX_DESC_COUNT (CONFIG_NET_BUF_TX_COUNT + 1)