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baseband/acc100: fix null HARQ input case

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An invalid HW operation may be caused in case the user provide
the BBDEV API and HARQ operation with input enabled and zero input.
Added protection for that case.

Fixes: 5ad5060f8f ("baseband/acc100: add LDPC processing functions")
Cc: stable@dpdk.org

Signed-off-by: Hernan Vargas <hernan.vargas@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
This commit is contained in:
Hernan Vargas 2022-10-20 22:20:45 -07:00 committed by Akhil Goyal
parent badb3b79b9
commit 75114f78cf
1 changed files with 8 additions and 0 deletions
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8
drivers/baseband/acc/rte_acc100_pmd.c
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@ -1068,6 +1068,14 @@ acc100_fcw_ld_fill(struct rte_bbdev_dec_op *op, struct acc_fcw_ld *fcw,
op->ldpc_dec.tb_params.ea :
op->ldpc_dec.tb_params.eb;
if (unlikely(check_bit(op->ldpc_dec.op_flags,
RTE_BBDEV_LDPC_HQ_COMBINE_IN_ENABLE) &&
(op->ldpc_dec.harq_combined_input.length == 0))) {
rte_bbdev_log(WARNING, "Null HARQ input size provided");
/* Disable HARQ input in that case to carry forward. */
op->ldpc_dec.op_flags ^= RTE_BBDEV_LDPC_HQ_COMBINE_IN_ENABLE;
}
fcw->hcin_en = check_bit(op->ldpc_dec.op_flags,
RTE_BBDEV_LDPC_HQ_COMBINE_IN_ENABLE);
fcw->hcout_en = check_bit(op->ldpc_dec.op_flags,