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milan-avb: aecp-aem: source GET_AVB_INFO grandmaster from gptp

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hackerman-kl 2026-04-28 21:43:18 +02:00
parent e9a1e50996
commit 9f019a061d
1 changed files with 12 additions and 5 deletions
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17
src/modules/module-avb/aecp-aem.c
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@ -7,6 +7,7 @@
#include "aecp-aem-descriptors.h" #include "aecp-aem-descriptors.h"
#include "aecp-aem-state.h" #include "aecp-aem-state.h"
#include "aecp-aem-cmds-resps/cmd-resp-helpers.h" #include "aecp-aem-cmds-resps/cmd-resp-helpers.h"
#include "gptp.h"
#include "utils.h" #include "utils.h"
/* The headers including the command and response of the system */ /* The headers including the command and response of the system */
@ -144,6 +145,8 @@ static int handle_get_avb_info_common(struct aecp *aecp, int64_t now,
const struct descriptor *desc; const struct descriptor *desc;
uint8_t buf[2048]; uint8_t buf[2048];
size_t size, psize; size_t size, psize;
uint64_t gm_id_be;
uint8_t flags;
i = (struct avb_packet_aecp_aem_get_avb_info*)p->payload; i = (struct avb_packet_aecp_aem_get_avb_info*)p->payload;
@ -174,13 +177,17 @@ static int handle_get_avb_info_common(struct aecp *aecp, int64_t now,
AVB_PACKET_SET_LENGTH(&reply->aecp.hdr, psize + 12); AVB_PACKET_SET_LENGTH(&reply->aecp.hdr, psize + 12);
i = (struct avb_packet_aecp_aem_get_avb_info*)reply->payload; i = (struct avb_packet_aecp_aem_get_avb_info*)reply->payload;
i->gptp_grandmaster_id = avb_interface->clock_identity; flags = AVB_AEM_AVB_INFO_FLAG_SRP_ENABLED;
/* IEEE 1722.1-2021 Section 7.4.40 GET_AVB_INFO. */
if (avb_gptp_get_grandmaster_id(server->gptp, &gm_id_be)) {
i->gptp_grandmaster_id = gm_id_be;
flags |= AVB_AEM_AVB_INFO_FLAG_GPTP_ENABLED;
} else {
i->gptp_grandmaster_id = avb_interface->clock_identity;
}
i->flags = flags;
i->propagation_delay = htonl(0); i->propagation_delay = htonl(0);
i->gptp_domain_number = avb_interface->domain_number; i->gptp_domain_number = avb_interface->domain_number;
/* IEEE 1722.1-2021 Section 7.4.40: GPTP_ENABLED / GPTP_GRANDMASTER_SUPPORTED
* stay 0 until the gPTP interface lands. SRP_ENABLED is on because
* MSRP is running on every AVB interface this module manages. */
i->flags = AVB_AEM_AVB_INFO_FLAG_SRP_ENABLED;
i->msrp_mappings_count = htons(0); i->msrp_mappings_count = htons(0);
return avb_server_send_packet(server, h->src, AVB_TSN_ETH, buf, size); return avb_server_send_packet(server, h->src, AVB_TSN_ETH, buf, size);