jpmschweitzerandClaude Fable 5
cb5826e02b
Root cause (verified against our exact IDF tree, not the community guess): the "258" in "sdio_write_task: Failed to send data: 258" is NOT a timeout (that is 263). 258 = 0x102 = ESP_ERR_INVALID_ARG. On the ESP32-P4, block- mode CMD53 writes require the SOURCE buffer to be 64-byte (cache-line) aligned; the IDF sdmmc driver rejects a misaligned source with INVALID_ARG BEFORE any bus activity. esp_hosts write loop then declares "Unrecoverable host sdio state" and reboots the whole P4. The audio TX payload is not 64-aligned, so streaming mic audio wedged on the very FIRST frame (which is exactly what we saw: listening -> instant Failed to send -> reboot). This also explains why buffer/queue/clock/retry tuning all did nothing: the write never reached the bus. And why our symptom was instant, not after ~100 writes (the community block-mode-desync theory) — it is the first misaligned buffer, every time. Fix: vendored esp_hosted 2.12.11 as an editable local component (overrides the registry copy) and bounce a misaligned TX payload through one aligned DMA scratch buffer in hosted_sdio_write_block (port_esp_hosted_host_sdio.c). TX is serialized by the bus lock so a single static bounce buffer is safe; freed in hosted_sdio_deinit. Host-only change — no C6 reflash. VERIFIED ON HARDWARE (autonomous self-test): 40s of continuous mic-audio upstream streaming — the traffic that previously wedged on the first frame — ran clean, zero timeouts, zero reboots. A guarded SDIO_TX_SELFTEST harness is kept (compiled out) for future SDIO stress testing. Credit: root cause + patch designed via multi-agent investigation; the precise 258=INVALID_ARG decode (correcting the upstream community timeout assumption) came from checking our actual esp_err.h. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
30 lines
810 B
C
30 lines
810 B
C
/*
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* SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef __NW_SPLIT_ROUTER_H__
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#define __NW_SPLIT_ROUTER_H__
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#include <stdint.h>
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#include <stdbool.h>
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#include <sdkconfig.h>
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#if defined(CONFIG_ESP_HOSTED_NETWORK_SPLIT_ENABLED) && defined(CONFIG_LWIP_ENABLE)
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typedef enum {
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SLAVE_LWIP_BRIDGE,
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HOST_LWIP_BRIDGE,
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BOTH_LWIP_BRIDGE,
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INVALID_BRIDGE,
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} hosted_l2_bridge;
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#include "esp_hosted_lwip_src_port_hook.h"
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hosted_l2_bridge nw_split_filter_and_route_packet(void *frame_data, uint16_t frame_length);
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int nw_split_config_host_static_port_fwd_rules(const char *ports_str_tcp_src, const char *ports_str_tcp_dst,
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const char *ports_str_udp_src, const char *ports_str_udp_dst);
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#endif
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#endif
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