baseband/acc100: update LDPC enc/dec validation
Update validate functions to check for valid LDPC parameters to avoid any HW issues. Adding protection for null corner case and for HARQ inbound size out of range. HARQ input size from application may be invalid and causing HW issue. Add checks to ensure that if HARQ is invalid, set to some valid size to ensure HW issues do not occur. Signed-off-by: Hernan Vargas <hernan.vargas@intel.com> Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
This commit is contained in:
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c7847be75c
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39fe62d0ea
@ -72,6 +72,8 @@ ACC100 and ACC101 5G/4G FEC PMDs support the following BBDEV capabilities:
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Recommended value is to keep the validation enabled by default
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as a protection for negative scenarios at a cost of some cycles
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spent to enforce these checks.
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- ``ACC100_EXT_MEM``: default option with memory external to CPU on the PCIe card DDR itself.
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Alternative build option will use CPU memory (not recommended).
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Installation
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@ -121,6 +121,7 @@
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#define ACC_ALGO_SPA 0
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#define ACC_ALGO_MSA 1
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#define ACC_HARQ_ALIGN_64B 64
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#define ACC_MAX_ZC 384
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/* Helper macro for logging */
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#define rte_acc_log(level, fmt, ...) \
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@ -1954,14 +1954,11 @@ static inline int
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validate_ldpc_enc_op(struct rte_bbdev_enc_op *op, struct acc_queue *q)
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{
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struct rte_bbdev_op_ldpc_enc *ldpc_enc = &op->ldpc_enc;
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int K, N, q_m, crc24;
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if (!validate_op_required(q))
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return 0;
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if (op->mempool == NULL) {
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rte_bbdev_log(ERR, "Invalid mempool pointer");
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return -1;
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}
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if (ldpc_enc->input.data == NULL) {
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rte_bbdev_log(ERR, "Invalid input pointer");
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return -1;
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@ -1970,17 +1967,12 @@ validate_ldpc_enc_op(struct rte_bbdev_enc_op *op, struct acc_queue *q)
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rte_bbdev_log(ERR, "Invalid output pointer");
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return -1;
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}
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if (ldpc_enc->input.length >
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RTE_BBDEV_LDPC_MAX_CB_SIZE >> 3) {
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rte_bbdev_log(ERR, "CB size (%u) is too big, max: %d",
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ldpc_enc->input.length,
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RTE_BBDEV_LDPC_MAX_CB_SIZE);
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if (ldpc_enc->input.length == 0) {
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rte_bbdev_log(ERR, "CB size (%u) is null", ldpc_enc->input.length);
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return -1;
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}
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if ((ldpc_enc->basegraph > 2) || (ldpc_enc->basegraph == 0)) {
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rte_bbdev_log(ERR,
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"BG (%u) is out of range 1 <= value <= 2",
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ldpc_enc->basegraph);
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rte_bbdev_log(ERR, "BG (%u) is out of range 1 <= value <= 2", ldpc_enc->basegraph);
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return -1;
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}
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if (ldpc_enc->rv_index > 3) {
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@ -1995,13 +1987,89 @@ validate_ldpc_enc_op(struct rte_bbdev_enc_op *op, struct acc_queue *q)
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ldpc_enc->code_block_mode);
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return -1;
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}
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int K = (ldpc_enc->basegraph == 1 ? 22 : 10) * ldpc_enc->z_c;
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if (ldpc_enc->n_filler >= K) {
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rte_bbdev_log(ERR,
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"K and F are not compatible %u %u",
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K, ldpc_enc->n_filler);
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if (ldpc_enc->z_c > ACC_MAX_ZC) {
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rte_bbdev_log(ERR, "Zc (%u) is out of range", ldpc_enc->z_c);
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return -1;
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}
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K = (ldpc_enc->basegraph == 1 ? 22 : 10) * ldpc_enc->z_c;
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N = (ldpc_enc->basegraph == 1 ? ACC_N_ZC_1 : ACC_N_ZC_2) * ldpc_enc->z_c;
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q_m = ldpc_enc->q_m;
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crc24 = 0;
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if (check_bit(op->ldpc_enc.op_flags,
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RTE_BBDEV_LDPC_CRC_24A_ATTACH) ||
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check_bit(op->ldpc_enc.op_flags,
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RTE_BBDEV_LDPC_CRC_24B_ATTACH))
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crc24 = 24;
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if ((K - ldpc_enc->n_filler) % 8 > 0) {
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rte_bbdev_log(ERR, "K - F not byte aligned %u", K - ldpc_enc->n_filler);
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return -1;
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}
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if (ldpc_enc->n_filler > (K - 2 * ldpc_enc->z_c)) {
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rte_bbdev_log(ERR, "K - F invalid %u %u", K, ldpc_enc->n_filler);
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return -1;
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}
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if ((ldpc_enc->n_cb > N) || (ldpc_enc->n_cb <= K)) {
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rte_bbdev_log(ERR, "Ncb (%u) is out of range K %d N %d", ldpc_enc->n_cb, K, N);
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return -1;
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}
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if (!check_bit(op->ldpc_enc.op_flags,
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RTE_BBDEV_LDPC_INTERLEAVER_BYPASS) &&
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((q_m == 0) || ((q_m > 2) && ((q_m % 2) == 1))
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|| (q_m > 8))) {
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rte_bbdev_log(ERR, "Qm (%u) is out of range", ldpc_enc->q_m);
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return -1;
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}
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if (ldpc_enc->code_block_mode == RTE_BBDEV_CODE_BLOCK) {
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if (ldpc_enc->cb_params.e == 0) {
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rte_bbdev_log(ERR, "E is null");
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return -1;
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}
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if (q_m > 0) {
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if (ldpc_enc->cb_params.e % q_m > 0) {
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rte_bbdev_log(ERR, "E not multiple of qm %d", q_m);
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return -1;
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}
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}
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if ((ldpc_enc->z_c <= 11) && (ldpc_enc->cb_params.e > 3456)) {
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rte_bbdev_log(ERR, "E too large for small block");
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return -1;
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}
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if (ldpc_enc->input.length >
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RTE_BBDEV_LDPC_MAX_CB_SIZE >> 3) {
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rte_bbdev_log(ERR, "CB size (%u) is too big, max: %d",
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ldpc_enc->input.length,
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RTE_BBDEV_LDPC_MAX_CB_SIZE);
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return -1;
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}
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if (K < (int) (ldpc_enc->input.length * 8 + ldpc_enc->n_filler) + crc24) {
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rte_bbdev_log(ERR,
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"K and F not matching input size %u %u %u",
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K, ldpc_enc->n_filler,
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ldpc_enc->input.length);
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return -1;
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}
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} else {
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if ((ldpc_enc->tb_params.c == 0) ||
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(ldpc_enc->tb_params.ea == 0) ||
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(ldpc_enc->tb_params.eb == 0)) {
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rte_bbdev_log(ERR, "TB parameter is null");
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return -1;
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}
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if (q_m > 0) {
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if ((ldpc_enc->tb_params.ea % q_m > 0) ||
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(ldpc_enc->tb_params.eb % q_m > 0)) {
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rte_bbdev_log(ERR, "E not multiple of qm %d", q_m);
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return -1;
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}
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}
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if ((ldpc_enc->z_c <= 11) && (RTE_MAX(ldpc_enc->tb_params.ea,
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ldpc_enc->tb_params.eb) > 3456)) {
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rte_bbdev_log(ERR, "E too large for small block");
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return -1;
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}
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}
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return 0;
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}
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@ -2010,24 +2078,30 @@ static inline int
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validate_ldpc_dec_op(struct rte_bbdev_dec_op *op, struct acc_queue *q)
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{
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struct rte_bbdev_op_ldpc_dec *ldpc_dec = &op->ldpc_dec;
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int K, N, q_m;
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uint32_t min_harq_input;
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if (!validate_op_required(q))
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return 0;
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if (op->mempool == NULL) {
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rte_bbdev_log(ERR, "Invalid mempool pointer");
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if (ldpc_dec->input.data == NULL) {
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rte_bbdev_log(ERR, "Invalid input pointer");
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return -1;
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}
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if (ldpc_dec->hard_output.data == NULL) {
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rte_bbdev_log(ERR, "Invalid output pointer");
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return -1;
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}
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if (ldpc_dec->input.length == 0) {
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rte_bbdev_log(ERR, "input is null");
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return -1;
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}
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if ((ldpc_dec->basegraph > 2) || (ldpc_dec->basegraph == 0)) {
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rte_bbdev_log(ERR,
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"BG (%u) is out of range 1 <= value <= 2",
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ldpc_dec->basegraph);
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rte_bbdev_log(ERR, "BG (%u) is out of range 1 <= value <= 2", ldpc_dec->basegraph);
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return -1;
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}
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if (ldpc_dec->iter_max == 0) {
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rte_bbdev_log(ERR,
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"iter_max (%u) is equal to 0",
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ldpc_dec->iter_max);
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rte_bbdev_log(ERR, "iter_max (%u) is equal to 0", ldpc_dec->iter_max);
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return -1;
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}
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if (ldpc_dec->rv_index > 3) {
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@ -2042,13 +2116,162 @@ validate_ldpc_dec_op(struct rte_bbdev_dec_op *op, struct acc_queue *q)
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ldpc_dec->code_block_mode);
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return -1;
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}
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int K = (ldpc_dec->basegraph == 1 ? 22 : 10) * ldpc_dec->z_c;
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if (ldpc_dec->n_filler >= K) {
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rte_bbdev_log(ERR,
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"K and F are not compatible %u %u",
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K, ldpc_dec->n_filler);
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/* Check Zc is valid value. */
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if ((ldpc_dec->z_c > ACC_MAX_ZC) || (ldpc_dec->z_c < 2)) {
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rte_bbdev_log(ERR, "Zc (%u) is out of range", ldpc_dec->z_c);
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return -1;
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}
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if (ldpc_dec->z_c > 256) {
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if ((ldpc_dec->z_c % 32) != 0) {
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rte_bbdev_log(ERR, "Invalid Zc %d", ldpc_dec->z_c);
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return -1;
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}
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} else if (ldpc_dec->z_c > 128) {
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if ((ldpc_dec->z_c % 16) != 0) {
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rte_bbdev_log(ERR, "Invalid Zc %d", ldpc_dec->z_c);
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return -1;
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}
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} else if (ldpc_dec->z_c > 64) {
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if ((ldpc_dec->z_c % 8) != 0) {
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rte_bbdev_log(ERR, "Invalid Zc %d", ldpc_dec->z_c);
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return -1;
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}
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} else if (ldpc_dec->z_c > 32) {
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if ((ldpc_dec->z_c % 4) != 0) {
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rte_bbdev_log(ERR, "Invalid Zc %d", ldpc_dec->z_c);
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return -1;
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}
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} else if (ldpc_dec->z_c > 16) {
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if ((ldpc_dec->z_c % 2) != 0) {
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rte_bbdev_log(ERR, "Invalid Zc %d", ldpc_dec->z_c);
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return -1;
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}
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}
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K = (ldpc_dec->basegraph == 1 ? 22 : 10) * ldpc_dec->z_c;
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N = (ldpc_dec->basegraph == 1 ? ACC_N_ZC_1 : ACC_N_ZC_2) * ldpc_dec->z_c;
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q_m = ldpc_dec->q_m;
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if (ldpc_dec->n_filler >= K - 2 * ldpc_dec->z_c) {
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rte_bbdev_log(ERR, "K and F are not compatible %u %u", K, ldpc_dec->n_filler);
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return -1;
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}
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if ((ldpc_dec->n_cb > N) || (ldpc_dec->n_cb <= K)) {
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rte_bbdev_log(ERR, "Ncb (%u) is out of range K %d N %d", ldpc_dec->n_cb, K, N);
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return -1;
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}
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if (((q_m == 0) || ((q_m > 2) && ((q_m % 2) == 1))
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|| (q_m > 8))) {
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rte_bbdev_log(ERR, "Qm (%u) is out of range", ldpc_dec->q_m);
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return -1;
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}
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if (ldpc_dec->code_block_mode == RTE_BBDEV_CODE_BLOCK) {
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if (ldpc_dec->cb_params.e == 0) {
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rte_bbdev_log(ERR, "E is null");
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return -1;
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}
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if (ldpc_dec->cb_params.e % q_m > 0) {
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rte_bbdev_log(ERR, "E not multiple of qm %d", q_m);
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return -1;
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}
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if (ldpc_dec->cb_params.e > 512 * ldpc_dec->z_c) {
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rte_bbdev_log(ERR, "E too high");
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return -1;
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}
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} else {
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if ((ldpc_dec->tb_params.c == 0) ||
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(ldpc_dec->tb_params.ea == 0) ||
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(ldpc_dec->tb_params.eb == 0)) {
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rte_bbdev_log(ERR, "TB parameter is null");
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return -1;
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}
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if ((ldpc_dec->tb_params.ea % q_m > 0) ||
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(ldpc_dec->tb_params.eb % q_m > 0)) {
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rte_bbdev_log(ERR, "E not multiple of qm %d", q_m);
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return -1;
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}
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if ((ldpc_dec->tb_params.ea > 512 * ldpc_dec->z_c) ||
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(ldpc_dec->tb_params.eb > 512 * ldpc_dec->z_c)) {
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rte_bbdev_log(ERR, "E too high");
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return -1;
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}
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}
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if (check_bit(op->ldpc_dec.op_flags, RTE_BBDEV_LDPC_DECODE_BYPASS)) {
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rte_bbdev_log(ERR, "Avoid LDPC Decode bypass");
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return -1;
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}
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/* Avoid HARQ compression for small block size */
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if ((check_bit(op->ldpc_dec.op_flags, RTE_BBDEV_LDPC_HARQ_6BIT_COMPRESSION)) && (K < 2048))
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op->ldpc_dec.op_flags ^= RTE_BBDEV_LDPC_HARQ_6BIT_COMPRESSION;
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min_harq_input = check_bit(op->ldpc_dec.op_flags,
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RTE_BBDEV_LDPC_HARQ_6BIT_COMPRESSION) ? 256 : 64;
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if (check_bit(op->ldpc_dec.op_flags,
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RTE_BBDEV_LDPC_HQ_COMBINE_IN_ENABLE) &&
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ldpc_dec->harq_combined_input.length <
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min_harq_input) {
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rte_bbdev_log(ERR, "HARQ input size is too small %d < %d",
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ldpc_dec->harq_combined_input.length,
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min_harq_input);
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return -1;
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}
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/* Enforce in-range HARQ input size */
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if (check_bit(op->ldpc_dec.op_flags, RTE_BBDEV_LDPC_HQ_COMBINE_IN_ENABLE)) {
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uint32_t max_harq_input = RTE_ALIGN_CEIL(ldpc_dec->n_cb - ldpc_dec->n_filler, 64);
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if (check_bit(op->ldpc_dec.op_flags, RTE_BBDEV_LDPC_HARQ_6BIT_COMPRESSION))
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max_harq_input = max_harq_input * 3 / 4;
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if (ldpc_dec->harq_combined_input.length > max_harq_input) {
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rte_bbdev_log(ERR,
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"HARQ input size out of range %d > %d, Ncb %d F %d K %d N %d",
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ldpc_dec->harq_combined_input.length,
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max_harq_input, ldpc_dec->n_cb,
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ldpc_dec->n_filler, K, N);
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/* Fallback to flush HARQ combine */
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ldpc_dec->harq_combined_input.length = 0;
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if (check_bit(op->ldpc_dec.op_flags, RTE_BBDEV_LDPC_HQ_COMBINE_IN_ENABLE))
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op->ldpc_dec.op_flags ^= RTE_BBDEV_LDPC_HQ_COMBINE_IN_ENABLE;
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}
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}
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#ifdef ACC100_EXT_MEM
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/* Enforce in-range HARQ offset */
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if (check_bit(op->ldpc_dec.op_flags, RTE_BBDEV_LDPC_HQ_COMBINE_IN_ENABLE)) {
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if ((op->ldpc_dec.harq_combined_input.offset >> 10) >= q->d->ddr_size) {
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rte_bbdev_log(ERR,
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"HARQin offset out of range %d > %d",
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op->ldpc_dec.harq_combined_input.offset,
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q->d->ddr_size);
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return -1;
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}
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if ((op->ldpc_dec.harq_combined_input.offset & 0x3FF) > 0) {
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rte_bbdev_log(ERR,
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"HARQin offset not aligned on 1kB %d",
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op->ldpc_dec.harq_combined_input.offset);
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return -1;
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}
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}
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if (check_bit(op->ldpc_dec.op_flags, RTE_BBDEV_LDPC_HQ_COMBINE_OUT_ENABLE)) {
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if ((op->ldpc_dec.harq_combined_output.offset >> 10) >= q->d->ddr_size) {
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rte_bbdev_log(ERR,
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"HARQout offset out of range %d > %d",
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op->ldpc_dec.harq_combined_output.offset,
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q->d->ddr_size);
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return -1;
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}
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if ((op->ldpc_dec.harq_combined_output.offset & 0x3FF) > 0) {
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rte_bbdev_log(ERR,
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"HARQout offset not aligned on 1kB %d",
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op->ldpc_dec.harq_combined_output.offset);
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return -1;
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}
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}
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#endif
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return 0;
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}
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#endif
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@ -2686,7 +2909,7 @@ harq_loopback(struct acc_queue *q, struct rte_bbdev_dec_op *op,
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memset(fcw, 0, sizeof(struct acc_fcw_ld));
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fcw->FCWversion = ACC_FCW_VER;
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fcw->qm = 2;
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fcw->Zc = 384;
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fcw->Zc = ACC_MAX_ZC;
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if (harq_in_length < 16 * ACC_N_ZC_1)
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fcw->Zc = 16;
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fcw->ncb = fcw->Zc * ACC_N_ZC_1;
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