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event/cnxk: add preliminary Tx queue depth check

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Add preliminary Tx queue depth check and return on failure.
Once the check passes, tx_adapter_enqueue() function becomes
a blocking call till it succeeds.

Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
This commit is contained in:
Pavan Nikhilesh 2022-08-16 21:05:45 +05:30 committed by Jerin Jacob
parent fbb9f7e215
commit 1c47a13510
1 changed files with 5 additions and 0 deletions
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5
drivers/event/cnxk/cn10k_worker.h
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@ -673,6 +673,11 @@ cn10k_sso_hws_event_tx(struct cn10k_sso_hws *ws, struct rte_event *ev,
}
m = ev->mbuf;
txq = cn10k_sso_hws_xtract_meta(m, txq_data);
if (((txq->nb_sqb_bufs_adj -
__atomic_load_n((int16_t *)txq->fc_mem, __ATOMIC_RELAXED))
<< txq->sqes_per_sqb_log2) <= 0)
return 0;
cn10k_sso_tx_one(ws, m, cmd, lmt_id, lmt_addr, ev->sched_type, txq_data,
flags);