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fix(emac): correct DMA status interrupt bit masks

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Align fatal-bus-error through normal-summary status flags with
dmastatus bit positions, and fix the FATAL_BUS_ERROR typo.
This commit is contained in:
Ondrej Kosta
2026-09-18 12:11:39 +02:00
parent 906c6ee688
commit b5fb8a6d79
4 changed files with 19 additions and 10 deletions
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components/esp_eth/Kconfig
+3 -1
View File
@@ -19,7 +19,9 @@ menu "Ethernet"
default 512
help
Set the size of each buffer used by Ethernet MAC DMA.
!! Important !! Make sure it is 64B aligned for ESP32P4!
On targets where internal RAM is accessed through L1 cache (ESP32-P4),
this size must be a multiple of the cache line size (64 bytes), e.g.
256, 512, 1536.
config ETH_DMA_RX_BUFFER_NUM
int "Amount of Ethernet DMA Rx buffers"
components/esp_eth/src/mac/esp_eth_mac_esp_dma.c
+8 -1
View File
@@ -5,6 +5,7 @@
*/
#include "esp_check.h"
#include "esp_assert.h"
#include "sdkconfig.h"
#include "soc/soc_caps.h"
#include "esp_cache.h"
@@ -41,6 +42,11 @@
#define DMA_CACHE_INVALIDATE(addr, size)
#endif
#if SOC_CACHE_INTERNAL_MEM_VIA_L1CACHE
ESP_STATIC_ASSERT((CONFIG_ETH_DMA_BUFFER_SIZE % CONFIG_CACHE_L1_CACHE_LINE_SIZE) == 0,
"CONFIG_ETH_DMA_BUFFER_SIZE must be a multiple of the L1 cache line size");
#endif
static const char *TAG = "esp.emac.dma";
struct emac_esp_dma_t {
@@ -315,6 +321,7 @@ err:
static esp_err_t emac_esp_dma_get_valid_recv_len(emac_esp_dma_handle_t emac_esp_dma, uint32_t *ret_len)
{
*ret_len = 0;
eth_dma_rx_descriptor_t *desc_iter = emac_esp_dma->rx_desc;
uint32_t used_descs = 0;
DMA_CACHE_INVALIDATE(desc_iter, EMAC_HAL_DMA_DESC_SIZE);
@@ -328,7 +335,6 @@ static esp_err_t emac_esp_dma_get_valid_recv_len(emac_esp_dma_handle_t emac_esp_
/* In addition, "Descriptor Error" (no free descriptors) may truncate a frame even if Store Forward is enabled */
if (desc_iter->RDES0.ErrSummary) {
emac_esp_dma_flush_recv_frame(emac_esp_dma);
*ret_len = 0;
return ESP_FAIL;
}
/* Get the Frame Length of the received packet: substruct 4 bytes of the CRC */
@@ -470,6 +476,7 @@ void emac_esp_dma_flush_recv_frame(emac_esp_dma_handle_t emac_esp_dma)
desc_iter->RDES0.Own = EMAC_LL_DMADESC_OWNER_DMA;
DMA_CACHE_WB(desc_iter, EMAC_HAL_DMA_DESC_SIZE);
desc_iter = (eth_dma_rx_descriptor_t *)(desc_iter->Buffer2NextDescAddr);
DMA_CACHE_INVALIDATE(desc_iter, EMAC_HAL_DMA_DESC_SIZE);
}
/* the last descriptor */
desc_iter->RDES0.Own = EMAC_LL_DMADESC_OWNER_DMA;