Update Turbo Software driver for Wireless Baseband Device:
- support for optional CRC overlap in decode processing implemented
- function scaling input LLR values to specific range [-16, 16] added
- sizes of the internal buffers used by decoding were increased due to
problem with memory for large test vectors
- new test vectors to check device capabilities added
Signed-off-by: KamilX Chalupnik <kamilx.chalup...@intel.com>
v2:
- logging macros fixed
---
app/test-bbdev/Makefile | 2 +
app/test-bbdev/test_bbdev_perf.c | 44 ++++++++++++++-
app/test-bbdev/test_bbdev_vector.c | 2 +
.../test_vectors/turbo_enc_c1_k40_r0_e1190_rm.data | 36 ++++++++++++
.../test_vectors/turbo_enc_c1_k40_r0_e1194_rm.data | 36 ++++++++++++
.../test_vectors/turbo_enc_c1_k40_r0_e1196_rm.data | 36 ++++++++++++
.../test_vectors/turbo_enc_c1_k40_r0_e272_rm.data | 33 +++++++++++
drivers/baseband/turbo_sw/bbdev_turbo_software.c | 64 +++++++++++++++-------
lib/librte_bbdev/rte_bbdev_op.h | 10 +++-
9 files changed, 241 insertions(+), 22 deletions(-)
create mode 100644
app/test-bbdev/test_vectors/turbo_enc_c1_k40_r0_e1190_rm.data
create mode 100644
app/test-bbdev/test_vectors/turbo_enc_c1_k40_r0_e1194_rm.data
create mode 100644
app/test-bbdev/test_vectors/turbo_enc_c1_k40_r0_e1196_rm.data
create mode 100644 app/test-bbdev/test_vectors/turbo_enc_c1_k40_r0_e272_rm.data
diff --git a/app/test-bbdev/Makefile b/app/test-bbdev/Makefile
index 9aedd77..6da0c8e 100644
--- a/app/test-bbdev/Makefile
+++ b/app/test-bbdev/Makefile
@@ -20,4 +20,6 @@ SRCS-$(CONFIG_RTE_TEST_BBDEV) += test_bbdev.c
SRCS-$(CONFIG_RTE_TEST_BBDEV) += test_bbdev_perf.c
SRCS-$(CONFIG_RTE_TEST_BBDEV) += test_bbdev_vector.c
+LDLIBS += -lm
+
include $(RTE_SDK)/mk/rte.app.mk
diff --git a/app/test-bbdev/test_bbdev_perf.c b/app/test-bbdev/test_bbdev_perf.c
index be2e20c..812787c 100644
--- a/app/test-bbdev/test_bbdev_perf.c
+++ b/app/test-bbdev/test_bbdev_perf.c
@@ -4,6 +4,7 @@
#include <stdio.h>
#include <inttypes.h>
+#include <math.h>
#include <rte_eal.h>
#include <rte_common.h>
@@ -631,10 +632,32 @@ allocate_buffers_on_socket(struct rte_bbdev_op_data
**buffers, const int len,
return (*buffers == NULL) ? TEST_FAILED : TEST_SUCCESS;
}
+static void
+limit_input_llr_val_range(struct rte_bbdev_op_data *input_ops,
+ const uint16_t n, const int8_t max_llr_modulus)
+{
+ uint16_t i, byte_idx;
+
+ for (i = 0; i < n; ++i) {
+ struct rte_mbuf *m = input_ops[i].data;
+ while (m != NULL) {
+ int8_t *llr = rte_pktmbuf_mtod_offset(m, int8_t *,
+ input_ops[i].offset);
+ for (byte_idx = 0; byte_idx < input_ops[i].length;
+ ++byte_idx)
+ llr[byte_idx] = round((double)max_llr_modulus *
+ llr[byte_idx] / INT8_MAX);
+
+ m = m->next;
+ }
+ }
+}
+
static int
fill_queue_buffers(struct test_op_params *op_params,
struct rte_mempool *in_mp, struct rte_mempool *hard_out_mp,
struct rte_mempool *soft_out_mp, uint16_t queue_id,
+ const struct rte_bbdev_op_cap *capabilities,
uint16_t min_alignment, const int socket_id)
{
int ret;
@@ -671,6 +694,10 @@ fill_queue_buffers(struct test_op_params *op_params,
"Couldn't init rte_bbdev_op_data structs");
}
+ if (test_vector.op_type == RTE_BBDEV_OP_TURBO_DEC)
+ limit_input_llr_val_range(*queue_ops[DATA_INPUT], n,
+ capabilities->cap.turbo_dec.max_llr_modulus);
+
return 0;
}
@@ -1017,6 +1044,7 @@ run_test_case_on_device(test_case_function
*test_case_func, uint8_t dev_id,
struct active_device *ad;
unsigned int burst_sz = get_burst_sz();
enum rte_bbdev_op_type op_type = test_vector.op_type;
+ const struct rte_bbdev_op_cap *capabilities = NULL;
ad = &active_devs[dev_id];
@@ -1049,9 +1077,20 @@ run_test_case_on_device(test_case_function
*test_case_func, uint8_t dev_id,
goto fail;
}
- if (test_vector.op_type == RTE_BBDEV_OP_TURBO_DEC)
+ if (test_vector.op_type == RTE_BBDEV_OP_TURBO_DEC) {
+ /* Find Decoder capabilities */
+ const struct rte_bbdev_op_cap *cap = info.drv.capabilities;
+ while (cap->type != RTE_BBDEV_OP_NONE) {
+ if (cap->type == RTE_BBDEV_OP_TURBO_DEC) {
+ capabilities = cap;
+ break;
+ }
+ }
+ TEST_ASSERT_NOT_NULL(capabilities,
+ "Couldn't find Decoder capabilities");
+
create_reference_dec_op(op_params->ref_dec_op);
- else if (test_vector.op_type == RTE_BBDEV_OP_TURBO_ENC)
+ } else if (test_vector.op_type == RTE_BBDEV_OP_TURBO_ENC)
create_reference_enc_op(op_params->ref_enc_op);
for (i = 0; i < ad->nb_queues; ++i) {
@@ -1060,6 +1099,7 @@ run_test_case_on_device(test_case_function
*test_case_func, uint8_t dev_id,
ad->hard_out_mbuf_pool,
ad->soft_out_mbuf_pool,
ad->queue_ids[i],
+ capabilities,
info.drv.min_alignment,
socket_id);
if (f_ret != TEST_SUCCESS) {
diff --git a/app/test-bbdev/test_bbdev_vector.c
b/app/test-bbdev/test_bbdev_vector.c
index addef05..a37e35f 100644
--- a/app/test-bbdev/test_bbdev_vector.c
+++ b/app/test-bbdev/test_bbdev_vector.c
@@ -144,6 +144,8 @@ op_decoder_flag_strtoul(char *token, uint32_t
*op_flag_value)
*op_flag_value = RTE_BBDEV_TURBO_MAP_DEC;
else if (!strcmp(token, "RTE_BBDEV_TURBO_DEC_SCATTER_GATHER"))
*op_flag_value = RTE_BBDEV_TURBO_DEC_SCATTER_GATHER;
+ else if (!strcmp(token, "RTE_BBDEV_TURBO_DEC_TB_CRC_24B_KEEP"))
+ *op_flag_value = RTE_BBDEV_TURBO_DEC_TB_CRC_24B_KEEP;
else {
printf("The given value is not a turbo decoder flag\n");
return -1;
diff --git a/app/test-bbdev/test_vectors/turbo_enc_c1_k40_r0_e1190_rm.data
b/app/test-bbdev/test_vectors/turbo_enc_c1_k40_r0_e1190_rm.data
new file mode 100644
index 0000000..6221756
--- /dev/null
+++ b/app/test-bbdev/test_vectors/turbo_enc_c1_k40_r0_e1190_rm.data
@@ -0,0 +1,36 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2017 Intel Corporation
+
+op_type =
+RTE_BBDEV_OP_TURBO_ENC
+
+input0 =
+0x11D2BCAC, 0x4D
+
+output0 =
+0xD2399179, 0x640EB999, 0x2CBAF577, 0xAF224AE2, 0x9D139927, 0xE6909B29,
0xA25B7F47, 0x2AA224CE,
+0x399179F2, 0x0EB999D2, 0xBAF57764, 0x224AE22C, 0x139927AF, 0x909B299D,
0x5B7F47E6, 0xA224CEA2,
+0x9179F22A, 0xB999D239, 0xF577640E, 0x4AE22CBA, 0x9927AF22, 0x9B299D13,
0x7F47E690, 0x24CEA25B,
+0x79F22AA2, 0x99D23991, 0x77640EB9, 0xE22CBAF5, 0x27AF224A, 0x299D1399,
0x47E6909B, 0xCEA25B7F,
+0xF22AA224, 0xD2399179, 0x640EB999, 0x2CBAF577, 0xAF224AE2, 0x24
+
+e =
+1190
+
+k =
+40
+
+ncb =
+192
+
+rv_index =
+0
+
+code_block_mode =
+1
+
+op_flags =
+RTE_BBDEV_TURBO_RATE_MATCH
+
+expected_status =
+OK
diff --git a/app/test-bbdev/test_vectors/turbo_enc_c1_k40_r0_e1194_rm.data
b/app/test-bbdev/test_vectors/turbo_enc_c1_k40_r0_e1194_rm.data
new file mode 100644
index 0000000..c569abd
--- /dev/null
+++ b/app/test-bbdev/test_vectors/turbo_enc_c1_k40_r0_e1194_rm.data
@@ -0,0 +1,36 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2017 Intel Corporation
+
+op_type =
+RTE_BBDEV_OP_TURBO_ENC
+
+input0 =
+0x11D2BCAC, 0x4D
+
+output0 =
+0xB3E8D6DF, 0xBC8A2889, 0x744E649E, 0x99436EA6, 0x8B6EFD1D, 0xAB889238,
0xE744E6C9, 0x39E4664A,
+0xE8D6DF91, 0x8A2889B3, 0x4E649EBC, 0x436EA674, 0x6EFD1D99, 0x8892388B,
0x44E6C9AB, 0xE4664AE7,
+0xD6DF9139, 0x2889B3E8, 0x649EBC8A, 0x6EA6744E, 0xFD1D9943, 0x92388B6E,
0xE6C9AB88, 0x664AE744,
+0xDF9139E4, 0x89B3E8D6, 0x9EBC8A28, 0xA6744E64, 0x1D99436E, 0x388B6EFD,
0xC9AB8892, 0x4AE744E6,
+0x9139E466, 0xB3E8D6DF, 0xBC8A2889, 0x744E649E, 0x99436EA6, 0xC01D
+
+e =
+1194
+
+k =
+40
+
+ncb =
+192
+
+rv_index =
+2
+
+code_block_mode =
+1
+
+op_flags =
+RTE_BBDEV_TURBO_RATE_MATCH
+
+expected_status =
+OK
diff --git a/app/test-bbdev/test_vectors/turbo_enc_c1_k40_r0_e1196_rm.data
b/app/test-bbdev/test_vectors/turbo_enc_c1_k40_r0_e1196_rm.data
new file mode 100644
index 0000000..72be6f5
--- /dev/null
+++ b/app/test-bbdev/test_vectors/turbo_enc_c1_k40_r0_e1196_rm.data
@@ -0,0 +1,36 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2017 Intel Corporation
+
+op_type =
+RTE_BBDEV_OP_TURBO_ENC
+
+input0 =
+0x11D2BCAC, 0x4D
+
+output0 =
+0xBC8A2889, 0x744E649E, 0x99436EA6, 0x8B6EFD1D, 0xAB889238, 0xE744E6C9,
0x39E4664A, 0xE8D6DF91,
+0x8A2889B3, 0x4E649EBC, 0x436EA674, 0x6EFD1D99, 0x8892388B, 0x44E6C9AB,
0xE4664AE7, 0xD6DF9139,
+0x2889B3E8, 0x649EBC8A, 0x6EA6744E, 0xFD1D9943, 0x92388B6E, 0xE6C9AB88,
0x664AE744, 0xDF9139E4,
+0x89B3E8D6, 0x9EBC8A28, 0xA6744E64, 0x1D99436E, 0x388B6EFD, 0xC9AB8892,
0x4AE744E6, 0x9139E466,
+0xB3E8D6DF, 0xBC8A2889, 0x744E649E, 0x99436EA6, 0x8B6EFD1D, 0x9038
+
+e =
+1196
+
+k =
+40
+
+ncb =
+192
+
+rv_index =
+3
+
+code_block_mode =
+1
+
+op_flags =
+RTE_BBDEV_TURBO_RATE_MATCH
+
+expected_status =
+OK
diff --git a/app/test-bbdev/test_vectors/turbo_enc_c1_k40_r0_e272_rm.data
b/app/test-bbdev/test_vectors/turbo_enc_c1_k40_r0_e272_rm.data
new file mode 100644
index 0000000..883a76c
--- /dev/null
+++ b/app/test-bbdev/test_vectors/turbo_enc_c1_k40_r0_e272_rm.data
@@ -0,0 +1,33 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2017 Intel Corporation
+
+op_type =
+RTE_BBDEV_OP_TURBO_ENC
+
+input0 =
+0x11d2bcac, 0x4d
+
+output0 =
+0xd2399179, 0x640eb999, 0x2cbaf577, 0xaf224ae2, 0x9d139927, 0xe6909b29,
0xa25b7f47, 0x2aa224ce,
+0x79f2
+
+e =
+272
+
+k =
+40
+
+ncb =
+192
+
+rv_index =
+0
+
+code_block_mode =
+1
+
+op_flags =
+RTE_BBDEV_TURBO_RATE_MATCH
+
+expected_status =
+OK
diff --git a/drivers/baseband/turbo_sw/bbdev_turbo_software.c
b/drivers/baseband/turbo_sw/bbdev_turbo_software.c
index de78e23..697f9d9 100644
--- a/drivers/baseband/turbo_sw/bbdev_turbo_software.c
+++ b/drivers/baseband/turbo_sw/bbdev_turbo_software.c
@@ -33,6 +33,10 @@ static int bbdev_turbo_sw_logtype;
rte_bbdev_log(DEBUG, RTE_STR(__LINE__) ":%s() " fmt, __func__, \
##__VA_ARGS__)
+#define DEINT_INPUT_BUF_SIZE (((RTE_BBDEV_MAX_CB_SIZE >> 3) + 1) * 48)
+#define DEINT_OUTPUT_BUF_SIZE (DEINT_INPUT_BUF_SIZE * 6)
+#define ADAPTER_OUTPUT_BUF_SIZE ((RTE_BBDEV_MAX_CB_SIZE + 4) * 48)
+
/* private data structure */
struct bbdev_private {
unsigned int max_nb_queues; /**< Max number of queues */
@@ -135,7 +139,9 @@ info_get(struct rte_bbdev *dev, struct
rte_bbdev_driver_info *dev_info)
RTE_BBDEV_TURBO_POS_LLR_1_BIT_IN |
RTE_BBDEV_TURBO_NEG_LLR_1_BIT_IN |
RTE_BBDEV_TURBO_CRC_TYPE_24B |
+ RTE_BBDEV_TURBO_DEC_TB_CRC_24B_KEEP |
RTE_BBDEV_TURBO_EARLY_TERMINATION,
+ .max_llr_modulus = 16,
.num_buffers_src = RTE_BBDEV_MAX_CODE_BLOCKS,
.num_buffers_hard_out =
RTE_BBDEV_MAX_CODE_BLOCKS,
@@ -286,7 +292,7 @@ q_setup(struct rte_bbdev *dev, uint16_t q_id,
return -ENAMETOOLONG;
}
q->code_block = rte_zmalloc_socket(name,
- (6144 >> 3) * sizeof(*q->code_block),
+ RTE_BBDEV_MAX_CB_SIZE * sizeof(*q->code_block),
RTE_CACHE_LINE_SIZE, queue_conf->socket);
if (q->code_block == NULL) {
rte_bbdev_log(ERR,
@@ -305,7 +311,7 @@ q_setup(struct rte_bbdev *dev, uint16_t q_id,
return -ENAMETOOLONG;
}
q->deint_input = rte_zmalloc_socket(name,
- RTE_BBDEV_MAX_KW * sizeof(*q->deint_input),
+ DEINT_INPUT_BUF_SIZE * sizeof(*q->deint_input),
RTE_CACHE_LINE_SIZE, queue_conf->socket);
if (q->deint_input == NULL) {
rte_bbdev_log(ERR,
@@ -324,7 +330,7 @@ q_setup(struct rte_bbdev *dev, uint16_t q_id,
return -ENAMETOOLONG;
}
q->deint_output = rte_zmalloc_socket(NULL,
- RTE_BBDEV_MAX_KW * sizeof(*q->deint_output),
+ DEINT_OUTPUT_BUF_SIZE * sizeof(*q->deint_output),
RTE_CACHE_LINE_SIZE, queue_conf->socket);
if (q->deint_output == NULL) {
rte_bbdev_log(ERR,
@@ -343,7 +349,7 @@ q_setup(struct rte_bbdev *dev, uint16_t q_id,
return -ENAMETOOLONG;
}
q->adapter_output = rte_zmalloc_socket(NULL,
- RTE_BBDEV_MAX_CB_SIZE * 6 * sizeof(*q->adapter_output),
+ ADAPTER_OUTPUT_BUF_SIZE * sizeof(*q->adapter_output),
RTE_CACHE_LINE_SIZE, queue_conf->socket);
if (q->adapter_output == NULL) {
rte_bbdev_log(ERR,
@@ -624,8 +630,16 @@ process_enc_cb(struct turbo_sw_queue *q, struct
rte_bbdev_enc_op *op,
/* Rate-matching */
if (enc->op_flags & RTE_BBDEV_TURBO_RATE_MATCH) {
+ uint8_t mask_id;
+ /* Integer round up division by 8 */
+ uint16_t out_len = (e + 7) >> 3;
+ /* The mask array is indexed using E%8. E is an even number so
+ * there are only 4 possible values.
+ */
+ const uint8_t mask_out[] = {0xFF, 0xC0, 0xF0, 0xFC};
+
/* get output data starting address */
- rm_out = (uint8_t *)rte_pktmbuf_append(m_out, (e >> 3));
+ rm_out = (uint8_t *)rte_pktmbuf_append(m_out, out_len);
if (rm_out == NULL) {
op->status |= 1 << RTE_BBDEV_DATA_ERROR;
rte_bbdev_log(ERR,
@@ -665,7 +679,7 @@ process_enc_cb(struct turbo_sw_queue *q, struct
rte_bbdev_enc_op *op,
rm_req.tin1 = out1;
rm_req.tin2 = out2;
rm_resp.output = rm_out;
- rm_resp.OutputLen = (e >> 3);
+ rm_resp.OutputLen = out_len;
if (enc->op_flags & RTE_BBDEV_TURBO_RV_INDEX_BYPASS)
rm_req.bypass_rvidx = 1;
else
@@ -681,6 +695,12 @@ process_enc_cb(struct turbo_sw_queue *q, struct
rte_bbdev_enc_op *op,
return;
}
+ /* SW fills an entire last byte even if E%8 != 0. Clear the
+ * superfluous data bits for consistency with HW device.
+ */
+ mask_id = (e & 7) >> 1;
+ rm_out[out_len - 1] &= mask_out[mask_id];
+
#ifdef RTE_TEST_BBDEV
q_stats->turbo_perf_time += rte_rdtsc_precise() - start_time;
#endif
@@ -866,7 +886,7 @@ remove_nulls_from_circular_buf(const uint8_t *in, uint8_t
*out, uint16_t k,
}
/* Last interlaced row is different - its last byte is the only padding
- * byte. We can have from 2 up to 26 padding bytes (Nd) per sub-block.
+ * byte. We can have from 4 up to 28 padding bytes (Nd) per sub-block.
* After interlacing the 1st and 2nd parity sub-blocks we can have 0, 1
* or 2 padding bytes each time we make a step of 2 * R_SUBBLOCK bytes
* (moving to another column). 2nd parity sub-block uses the same
@@ -877,10 +897,10 @@ remove_nulls_from_circular_buf(const uint8_t *in, uint8_t
*out, uint16_t k,
* 32nd (31+1) byte, then 64th etc. (step is C_SUBBLOCK == 32) and the
* last byte will be the first byte from the sub-block:
* (32 + 32 * (R_SUBBLOCK-1)) % Kw == Kw % Kw == 0. Nd can't be smaller
- * than 2 so we know that bytes with ids 0 and 1 must be the padding
- * bytes. The bytes from the 1st parity sub-block are the bytes from the
- * 31st column - Nd can't be greater than 26 so we are sure that there
- * are no padding bytes in 31st column.
+ * than 4 so we know that bytes with ids 0, 1, 2 and 3 must be the
+ * padding bytes. The bytes from the 1st parity sub-block are the bytes
+ * from the 31st column - Nd can't be greater than 28 so we are sure
+ * that there are no padding bytes in 31st column.
*/
rte_memcpy(&out[out_idx], &in[in_idx], 2 * r_subblock - 1);
}
@@ -895,14 +915,14 @@ move_padding_bytes(const uint8_t *in, uint8_t *out,
uint16_t k,
rte_memcpy(&out[nd], in, d);
rte_memcpy(&out[nd + kpi + 64], &in[kpi], d);
- rte_memcpy(&out[nd + 2 * (kpi + 64)], &in[2 * kpi], d);
+ rte_memcpy(&out[(nd - 1) + 2 * (kpi + 64)], &in[2 * kpi], d);
}
static inline void
process_dec_cb(struct turbo_sw_queue *q, struct rte_bbdev_dec_op *op,
uint8_t c, uint16_t k, uint16_t kw, struct rte_mbuf *m_in,
struct rte_mbuf *m_out, uint16_t in_offset, uint16_t out_offset,
- bool check_crc_24b, uint16_t total_left)
+ bool check_crc_24b, uint16_t crc24_overlap, uint16_t total_left)
{
#ifdef RTE_LIBRTE_BBDEV_DEBUG
int ret;
@@ -966,7 +986,7 @@ process_dec_cb(struct turbo_sw_queue *q, struct
rte_bbdev_dec_op *op,
adapter_resp.pharqout = q->adapter_output;
bblib_turbo_adapter_ul(&adapter_req, &adapter_resp);
- out = (uint8_t *)rte_pktmbuf_append(m_out, (k >> 3));
+ out = (uint8_t *)rte_pktmbuf_append(m_out, ((k - crc24_overlap) >> 3));
if (out == NULL) {
op->status |= 1 << RTE_BBDEV_DATA_ERROR;
rte_bbdev_log(ERR, "Too little space in output mbuf");
@@ -1008,6 +1028,7 @@ enqueue_dec_one_op(struct turbo_sw_queue *q, struct
rte_bbdev_dec_op *op)
{
uint8_t c, r = 0;
uint16_t kw, k = 0;
+ uint16_t crc24_overlap = 0;
struct rte_bbdev_op_turbo_dec *dec = &op->turbo_dec;
struct rte_mbuf *m_in = dec->input.data;
struct rte_mbuf *m_out = dec->hard_output.data;
@@ -1031,6 +1052,10 @@ enqueue_dec_one_op(struct turbo_sw_queue *q, struct
rte_bbdev_dec_op *op)
c = 1;
}
+ if ((c > 1) && !check_bit(dec->op_flags,
+ RTE_BBDEV_TURBO_DEC_TB_CRC_24B_KEEP))
+ crc24_overlap = 24;
+
while (total_left > 0) {
if (dec->code_block_mode == 0)
k = (r < dec->tb_params.c_neg) ?
@@ -1050,17 +1075,18 @@ enqueue_dec_one_op(struct turbo_sw_queue *q, struct
rte_bbdev_dec_op *op)
process_dec_cb(q, op, c, k, kw, m_in, m_out, in_offset,
out_offset, check_bit(dec->op_flags,
- RTE_BBDEV_TURBO_CRC_TYPE_24B), total_left);
- /* As a result of decoding we get Code Block with included
- * decoded CRC24 at the end of Code Block. Type of CRC24 is
- * specified by flag.
+ RTE_BBDEV_TURBO_CRC_TYPE_24B), crc24_overlap,
+ total_left);
+ /* To keep CRC24 attached to end of Code block, use
+ * RTE_BBDEV_TURBO_DEC_TB_CRC_24B_KEEP flag as it
+ * removed by default once verified.
*/
/* Update total_left */
total_left -= kw;
/* Update offsets for next CBs (if exist) */
in_offset += kw;
- out_offset += (k >> 3);
+ out_offset += ((k - crc24_overlap) >> 3);
r++;
}
if (total_left != 0) {
diff --git a/lib/librte_bbdev/rte_bbdev_op.h b/lib/librte_bbdev/rte_bbdev_op.h
index 1a80588..83f62c2 100644
--- a/lib/librte_bbdev/rte_bbdev_op.h
+++ b/lib/librte_bbdev/rte_bbdev_op.h
@@ -102,7 +102,11 @@ enum rte_bbdev_op_td_flag_bitmasks {
*/
RTE_BBDEV_TURBO_MAP_DEC = (1ULL << 14),
/**< Set if a device supports scatter-gather functionality */
- RTE_BBDEV_TURBO_DEC_SCATTER_GATHER = (1ULL << 15)
+ RTE_BBDEV_TURBO_DEC_SCATTER_GATHER = (1ULL << 15),
+ /**< Set to keep CRC24B bits appended while decoding. Only usable when
+ * decoding Transport Blocks (code_block_mode = 0).
+ */
+ RTE_BBDEV_TURBO_DEC_TB_CRC_24B_KEEP = (1ULL << 16)
};
/** Flags for turbo encoder operation and capability structure */
@@ -379,6 +383,10 @@ struct rte_bbdev_op_turbo_enc {
struct rte_bbdev_op_cap_turbo_dec {
/**< Flags from rte_bbdev_op_td_flag_bitmasks */
uint32_t capability_flags;
+ /** Maximal LLR absolute value. Acceptable LLR values lie in range
+ * [-max_llr_modulus, max_llr_modulus].
+ */
+ int8_t max_llr_modulus;
uint8_t num_buffers_src; /**< Num input code block buffers */
/**< Num hard output code block buffers */
uint8_t num_buffers_hard_out;
--
2.5.5
--------------------------------------------------------------
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