bssgp_bvc_fsm: Add a hook to notify when a reset was acknowledged

There are cases where we want to be notified of a successful BVC reset,
e.g. for a signalling because we can then start resetting the PtP-BVCs.
With this hook it's now possible to do that.

Change-Id: If240dd13f0f674693018c93390386b2c8afb97af
Related: SYS#5908
This commit is contained in:
Daniel Willmann 2022-03-30 11:34:36 +02:00
parent c17546faff
commit 767bfd8c87
3 changed files with 7 additions and 0 deletions

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@ -9,3 +9,4 @@
#library what description / commit summary line
libosmogsm ABI BREAKAGE CELL_IDENT_WHOLE_GLOBAL_PS changed enum number
libosmogsm add struct member Add codec_list_bss_supported to gsm0808_handover_request_ack (more_items flag ensures ABI compat)
libosmogb ABI BREAKAGE Add reset_ack_notification function pointer to struct bssgp_bvc_fsm_ops

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@ -40,6 +40,8 @@ struct bssgp_bvc_fsm_ops {
void (*reset_notification)(uint16_t nsei, uint16_t bvci, const struct gprs_ra_id *ra_id,
uint16_t cell_id, uint8_t cause, void *priv);
void (*rx_fc_bvc)(uint16_t nsei, uint16_t bvci, const struct bssgp2_flow_ctrl *fc, void *priv);
void (*reset_ack_notification)(uint16_t nsei, uint16_t bvci, const struct gprs_ra_id *ra_id,
uint16_t cell_id, uint8_t cause, void *priv);
};
struct osmo_fsm_inst *

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@ -375,6 +375,7 @@ static void bssgp_bvc_fsm_wait_reset_ack(struct osmo_fsm_inst *fi, uint32_t even
struct bvc_fsm_priv *bfp = fi->priv;
const struct tlv_parsed *tp = NULL;
struct msgb *rx = NULL, *tx;
uint8_t cause;
switch (event) {
case BSSGP_BVCFSM_E_RX_RESET:
@ -385,6 +386,7 @@ static void bssgp_bvc_fsm_wait_reset_ack(struct osmo_fsm_inst *fi, uint32_t even
/* fall-through */
case BSSGP_BVCFSM_E_RX_RESET_ACK:
rx = data;
cause = bfp->last_reset_cause;
tp = (const struct tlv_parsed *) msgb_bcid(rx);
if (bfp->bvci == 0)
update_negotiated_features(fi, tp);
@ -398,6 +400,8 @@ static void bssgp_bvc_fsm_wait_reset_ack(struct osmo_fsm_inst *fi, uint32_t even
osmo_fsm_inst_state_chg(fi, BSSGP_BVCFSM_S_BLOCKED, T1_SECS, T1);
} else
osmo_fsm_inst_state_chg(fi, BSSGP_BVCFSM_S_UNBLOCKED, 0, 0);
if (bfp->ops && bfp->ops->reset_ack_notification)
bfp->ops->reset_ack_notification(bfp->nsei, bfp->bvci, &bfp->ra_id, bfp->cell_id, cause, bfp->ops_priv);
break;
}
}