baseband/turbo_sw: allow to build without SDK dependency
[dpdk.git] / drivers / baseband / turbo_sw / bbdev_turbo_software.c
index b816a7f..94aa536 100644 (file)
 #include <rte_bbdev.h>
 #include <rte_bbdev_pmd.h>
 
+#ifdef RTE_BBDEV_SDK_AVX2
 #include <phy_turbo.h>
 #include <phy_crc.h>
 #include <phy_rate_match.h>
-#include <divide.h>
+#endif
 
-#define DRIVER_NAME turbo_sw
+#define DRIVER_NAME baseband_turbo_sw
 
 /* Turbo SW PMD logging ID */
 static int bbdev_turbo_sw_logtype;
@@ -83,6 +84,19 @@ struct turbo_sw_queue {
        enum rte_bbdev_op_type type;
 } __rte_cache_aligned;
 
+#ifdef RTE_BBDEV_SDK_AVX2
+static inline char *
+mbuf_append(struct rte_mbuf *m_head, struct rte_mbuf *m, uint16_t len)
+{
+       if (unlikely(len > rte_pktmbuf_tailroom(m)))
+               return NULL;
+
+       char *tail = (char *)m->buf_addr + m->data_off + m->data_len;
+       m->data_len = (uint16_t)(m->data_len + len);
+       m_head->pkt_len  = (m_head->pkt_len + len);
+       return tail;
+}
+
 /* Calculate index based on Table 5.1.3-3 from TS34.212 */
 static inline int32_t
 compute_idx(uint16_t k)
@@ -116,6 +130,7 @@ compute_idx(uint16_t k)
 
        return result;
 }
+#endif
 
 /* Read flag value 0/1 from bitmap */
 static inline bool
@@ -131,6 +146,7 @@ info_get(struct rte_bbdev *dev, struct rte_bbdev_driver_info *dev_info)
        struct bbdev_private *internals = dev->data->dev_private;
 
        static const struct rte_bbdev_op_cap bbdev_capabilities[] = {
+#ifdef RTE_BBDEV_SDK_AVX2
                {
                        .type = RTE_BBDEV_OP_TURBO_DEC,
                        .cap.turbo_dec = {
@@ -160,6 +176,7 @@ info_get(struct rte_bbdev *dev, struct rte_bbdev_driver_info *dev_info)
                                .num_buffers_dst = RTE_BBDEV_MAX_CODE_BLOCKS,
                        }
                },
+#endif
                RTE_BBDEV_END_OF_CAPABILITIES_LIST()
        };
 
@@ -167,7 +184,12 @@ info_get(struct rte_bbdev *dev, struct rte_bbdev_driver_info *dev_info)
                .queue_size = RTE_BBDEV_QUEUE_SIZE_LIMIT,
        };
 
+#ifdef RTE_BBDEV_SDK_AVX2
        static const enum rte_cpu_flag_t cpu_flag = RTE_CPUFLAG_SSE4_2;
+       dev_info->cpu_flag_reqs = &cpu_flag;
+#else
+       dev_info->cpu_flag_reqs = NULL;
+#endif
 
        default_queue_conf.socket = dev->data->socket_id;
 
@@ -179,7 +201,6 @@ info_get(struct rte_bbdev *dev, struct rte_bbdev_driver_info *dev_info)
        dev_info->max_ul_queue_priority = 0;
        dev_info->default_queue_conf = default_queue_conf;
        dev_info->capabilities = bbdev_capabilities;
-       dev_info->cpu_flag_reqs = &cpu_flag;
        dev_info->min_alignment = 64;
 
        rte_bbdev_log_debug("got device info from %u\n", dev->data->dev_id);
@@ -227,7 +248,7 @@ q_setup(struct rte_bbdev *dev, uint16_t q_id,
        }
 
        /* Allocate memory for encoder output. */
-       ret = snprintf(name, RTE_RING_NAMESIZE, RTE_STR(DRIVER_NAME)"_enc_out%u:%u",
+       ret = snprintf(name, RTE_RING_NAMESIZE, RTE_STR(DRIVER_NAME)"_enc_o%u:%u",
                        dev->data->dev_id, q_id);
        if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
                rte_bbdev_log(ERR,
@@ -247,7 +268,7 @@ q_setup(struct rte_bbdev *dev, uint16_t q_id,
 
        /* Allocate memory for rate matching output. */
        ret = snprintf(name, RTE_RING_NAMESIZE,
-                       RTE_STR(DRIVER_NAME)"_enc_in%u:%u", dev->data->dev_id,
+                       RTE_STR(DRIVER_NAME)"_enc_i%u:%u", dev->data->dev_id,
                        q_id);
        if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
                rte_bbdev_log(ERR,
@@ -302,7 +323,7 @@ q_setup(struct rte_bbdev *dev, uint16_t q_id,
 
        /* Allocate memory for Deinterleaver input. */
        ret = snprintf(name, RTE_RING_NAMESIZE,
-                       RTE_STR(DRIVER_NAME)"_deint_input%u:%u",
+                       RTE_STR(DRIVER_NAME)"_de_i%u:%u",
                        dev->data->dev_id, q_id);
        if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
                rte_bbdev_log(ERR,
@@ -321,7 +342,7 @@ q_setup(struct rte_bbdev *dev, uint16_t q_id,
 
        /* Allocate memory for Deinterleaver output. */
        ret = snprintf(name, RTE_RING_NAMESIZE,
-                       RTE_STR(DRIVER_NAME)"_deint_output%u:%u",
+                       RTE_STR(DRIVER_NAME)"_de_o%u:%u",
                        dev->data->dev_id, q_id);
        if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
                rte_bbdev_log(ERR,
@@ -340,7 +361,7 @@ q_setup(struct rte_bbdev *dev, uint16_t q_id,
 
        /* Allocate memory for Adapter output. */
        ret = snprintf(name, RTE_RING_NAMESIZE,
-                       RTE_STR(DRIVER_NAME)"_adapter_output%u:%u",
+                       RTE_STR(DRIVER_NAME)"_ada_o%u:%u",
                        dev->data->dev_id, q_id);
        if ((ret < 0) || (ret >= (int)RTE_RING_NAMESIZE)) {
                rte_bbdev_log(ERR,
@@ -398,6 +419,7 @@ static const struct rte_bbdev_ops pmd_ops = {
        .queue_release = q_release
 };
 
+#ifdef RTE_BBDEV_SDK_AVX2
 /* Checks if the encoder input buffer is correct.
  * Returns 0 if it's valid, -1 otherwise.
  */
@@ -437,7 +459,7 @@ is_dec_input_valid(int32_t k_idx, int16_t kw, int16_t in_length)
                return -1;
        }
 
-       if (in_length - kw < 0) {
+       if (in_length < kw) {
                rte_bbdev_log(ERR,
                                "Mismatch between input length (%u) and kw (%u)",
                                in_length, kw);
@@ -452,14 +474,16 @@ is_dec_input_valid(int32_t k_idx, int16_t kw, int16_t in_length)
 
        return 0;
 }
+#endif
 
 static inline void
 process_enc_cb(struct turbo_sw_queue *q, struct rte_bbdev_enc_op *op,
                uint8_t r, uint8_t c, uint16_t k, uint16_t ncb,
-               uint32_t e, struct rte_mbuf *m_in, struct rte_mbuf *m_out,
-               uint16_t in_offset, uint16_t out_offset, uint16_t total_left,
-               struct rte_bbdev_stats *q_stats)
+               uint32_t e, struct rte_mbuf *m_in, struct rte_mbuf *m_out_head,
+               struct rte_mbuf *m_out, uint16_t in_offset, uint16_t out_offset,
+               uint16_t in_length, struct rte_bbdev_stats *q_stats)
 {
+#ifdef RTE_BBDEV_SDK_AVX2
        int ret;
        int16_t k_idx;
        uint16_t m;
@@ -484,17 +508,17 @@ process_enc_cb(struct turbo_sw_queue *q, struct rte_bbdev_enc_op *op,
        /* CRC24A (for TB) */
        if ((enc->op_flags & RTE_BBDEV_TURBO_CRC_24A_ATTACH) &&
                (enc->code_block_mode == 1)) {
-               ret = is_enc_input_valid(k - 24, k_idx, total_left);
+               ret = is_enc_input_valid(k - 24, k_idx, in_length);
                if (ret != 0) {
                        op->status |= 1 << RTE_BBDEV_DATA_ERROR;
                        return;
                }
                crc_req.data = in;
-               crc_req.len = (k - 24) >> 3;
-               /* Check if there is a room for CRC bits. If not use
+               crc_req.len = k - 24;
+               /* Check if there is a room for CRC bits if not use
                 * the temporary buffer.
                 */
-               if (rte_pktmbuf_append(m_in, 3) == NULL) {
+               if (mbuf_append(m_in, m_in, 3) == NULL) {
                        rte_memcpy(q->enc_in, in, (k - 24) >> 3);
                        in = q->enc_in;
                } else {
@@ -510,23 +534,24 @@ process_enc_cb(struct turbo_sw_queue *q, struct rte_bbdev_enc_op *op,
 #ifdef RTE_BBDEV_OFFLOAD_COST
                start_time = rte_rdtsc_precise();
 #endif
+               /* CRC24A generation */
                bblib_lte_crc24a_gen(&crc_req, &crc_resp);
 #ifdef RTE_BBDEV_OFFLOAD_COST
-               q_stats->offload_time += rte_rdtsc_precise() - start_time;
+               q_stats->acc_offload_cycles += rte_rdtsc_precise() - start_time;
 #endif
        } else if (enc->op_flags & RTE_BBDEV_TURBO_CRC_24B_ATTACH) {
                /* CRC24B */
-               ret = is_enc_input_valid(k - 24, k_idx, total_left);
+               ret = is_enc_input_valid(k - 24, k_idx, in_length);
                if (ret != 0) {
                        op->status |= 1 << RTE_BBDEV_DATA_ERROR;
                        return;
                }
                crc_req.data = in;
-               crc_req.len = (k - 24) >> 3;
-               /* Check if there is a room for CRC bits. If this is the last
+               crc_req.len = k - 24;
+               /* Check if there is a room for CRC bits if this is the last
                 * CB in TB. If not use temporary buffer.
                 */
-               if ((c - r == 1) && (rte_pktmbuf_append(m_in, 3) == NULL)) {
+               if ((c - r == 1) && (mbuf_append(m_in, m_in, 3) == NULL)) {
                        rte_memcpy(q->enc_in, in, (k - 24) >> 3);
                        in = q->enc_in;
                } else if (c - r > 1) {
@@ -542,12 +567,13 @@ process_enc_cb(struct turbo_sw_queue *q, struct rte_bbdev_enc_op *op,
 #ifdef RTE_BBDEV_OFFLOAD_COST
                start_time = rte_rdtsc_precise();
 #endif
+               /* CRC24B generation */
                bblib_lte_crc24b_gen(&crc_req, &crc_resp);
 #ifdef RTE_BBDEV_OFFLOAD_COST
-               q_stats->offload_time += rte_rdtsc_precise() - start_time;
+               q_stats->acc_offload_cycles += rte_rdtsc_precise() - start_time;
 #endif
        } else {
-               ret = is_enc_input_valid(k, k_idx, total_left);
+               ret = is_enc_input_valid(k, k_idx, in_length);
                if (ret != 0) {
                        op->status |= 1 << RTE_BBDEV_DATA_ERROR;
                        return;
@@ -568,7 +594,8 @@ process_enc_cb(struct turbo_sw_queue *q, struct rte_bbdev_enc_op *op,
                out1 = RTE_PTR_ADD(out0, (k >> 3) + 1);
                out2 = RTE_PTR_ADD(out1, (k >> 3) + 1);
        } else {
-               out0 = (uint8_t *)rte_pktmbuf_append(m_out, (k >> 3) * 3 + 2);
+               out0 = (uint8_t *)mbuf_append(m_out_head, m_out,
+                               (k >> 3) * 3 + 2);
                if (out0 == NULL) {
                        op->status |= 1 << RTE_BBDEV_DATA_ERROR;
                        rte_bbdev_log(ERR,
@@ -596,15 +623,14 @@ process_enc_cb(struct turbo_sw_queue *q, struct rte_bbdev_enc_op *op,
 #ifdef RTE_BBDEV_OFFLOAD_COST
        start_time = rte_rdtsc_precise();
 #endif
-
+       /* Turbo encoding */
        if (bblib_turbo_encoder(&turbo_req, &turbo_resp) != 0) {
                op->status |= 1 << RTE_BBDEV_DRV_ERROR;
                rte_bbdev_log(ERR, "Turbo Encoder failed");
                return;
        }
-
 #ifdef RTE_BBDEV_OFFLOAD_COST
-       q_stats->offload_time += rte_rdtsc_precise() - start_time;
+       q_stats->acc_offload_cycles += rte_rdtsc_precise() - start_time;
 #endif
 
        /* Restore 3 first bytes of next CB if they were overwritten by CRC*/
@@ -622,7 +648,7 @@ process_enc_cb(struct turbo_sw_queue *q, struct rte_bbdev_enc_op *op,
                const uint8_t mask_out[] = {0xFF, 0xC0, 0xF0, 0xFC};
 
                /* get output data starting address */
-               rm_out = (uint8_t *)rte_pktmbuf_append(m_out, out_len);
+               rm_out = (uint8_t *)mbuf_append(m_out_head, m_out, out_len);
                if (rm_out == NULL) {
                        op->status |= 1 << RTE_BBDEV_DATA_ERROR;
                        rte_bbdev_log(ERR,
@@ -671,23 +697,21 @@ process_enc_cb(struct turbo_sw_queue *q, struct rte_bbdev_enc_op *op,
 #ifdef RTE_BBDEV_OFFLOAD_COST
                start_time = rte_rdtsc_precise();
 #endif
-
+               /* Rate-Matching */
                if (bblib_rate_match_dl(&rm_req, &rm_resp) != 0) {
                        op->status |= 1 << RTE_BBDEV_DRV_ERROR;
                        rte_bbdev_log(ERR, "Rate matching failed");
                        return;
                }
+#ifdef RTE_BBDEV_OFFLOAD_COST
+               q_stats->acc_offload_cycles += rte_rdtsc_precise() - start_time;
+#endif
 
                /* 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_BBDEV_OFFLOAD_COST
-               q_stats->offload_time += rte_rdtsc_precise() - start_time;
-#endif
-
                enc->output.length += rm_resp.OutputLen;
        } else {
                /* Rate matching is bypassed */
@@ -712,6 +736,22 @@ process_enc_cb(struct turbo_sw_queue *q, struct rte_bbdev_enc_op *op,
                }
                *tmp_out = 0;
        }
+#else
+       RTE_SET_USED(q);
+       RTE_SET_USED(op);
+       RTE_SET_USED(r);
+       RTE_SET_USED(c);
+       RTE_SET_USED(k);
+       RTE_SET_USED(ncb);
+       RTE_SET_USED(e);
+       RTE_SET_USED(m_in);
+       RTE_SET_USED(m_out_head);
+       RTE_SET_USED(m_out);
+       RTE_SET_USED(in_offset);
+       RTE_SET_USED(out_offset);
+       RTE_SET_USED(in_length);
+       RTE_SET_USED(q_stats);
+#endif
 }
 
 static inline void
@@ -726,14 +766,16 @@ enqueue_enc_one_op(struct turbo_sw_queue *q, struct rte_bbdev_enc_op *op,
        uint16_t out_offset = enc->output.offset;
        struct rte_mbuf *m_in = enc->input.data;
        struct rte_mbuf *m_out = enc->output.data;
-       uint16_t total_left = enc->input.length;
+       struct rte_mbuf *m_out_head = enc->output.data;
+       uint32_t in_length, mbuf_total_left = enc->input.length;
+       uint16_t seg_total_left;
 
        /* Clear op status */
        op->status = 0;
 
-       if (total_left > RTE_BBDEV_MAX_TB_SIZE >> 3) {
+       if (mbuf_total_left > RTE_BBDEV_MAX_TB_SIZE >> 3) {
                rte_bbdev_log(ERR, "TB size (%u) is too big, max: %d",
-                               total_left, RTE_BBDEV_MAX_TB_SIZE);
+                               mbuf_total_left, RTE_BBDEV_MAX_TB_SIZE);
                op->status = 1 << RTE_BBDEV_DATA_ERROR;
                return;
        }
@@ -756,7 +798,10 @@ enqueue_enc_one_op(struct turbo_sw_queue *q, struct rte_bbdev_enc_op *op,
                r = 0;
        }
 
-       while (total_left > 0 && r < c) {
+       while (mbuf_total_left > 0 && r < c) {
+
+               seg_total_left = rte_pktmbuf_data_len(m_in) - in_offset;
+
                if (enc->code_block_mode == 0) {
                        k = (r < enc->tb_params.c_neg) ?
                                enc->tb_params.k_neg : enc->tb_params.k_pos;
@@ -770,22 +815,32 @@ enqueue_enc_one_op(struct turbo_sw_queue *q, struct rte_bbdev_enc_op *op,
                        e = enc->cb_params.e;
                }
 
-               process_enc_cb(q, op, r, c, k, ncb, e, m_in,
-                               m_out, in_offset, out_offset, total_left,
+               process_enc_cb(q, op, r, c, k, ncb, e, m_in, m_out_head,
+                               m_out, in_offset, out_offset, seg_total_left,
                                queue_stats);
                /* Update total_left */
-               total_left -= (k - crc24_bits) >> 3;
+               in_length = ((k - crc24_bits) >> 3);
+               mbuf_total_left -= in_length;
                /* Update offsets for next CBs (if exist) */
                in_offset += (k - crc24_bits) >> 3;
                if (enc->op_flags & RTE_BBDEV_TURBO_RATE_MATCH)
                        out_offset += e >> 3;
                else
                        out_offset += (k >> 3) * 3 + 2;
+
+               /* Update offsets */
+               if (seg_total_left == in_length) {
+                       /* Go to the next mbuf */
+                       m_in = m_in->next;
+                       m_out = m_out->next;
+                       in_offset = 0;
+                       out_offset = 0;
+               }
                r++;
        }
 
        /* check if all input data was processed */
-       if (total_left != 0) {
+       if (mbuf_total_left != 0) {
                op->status |= 1 << RTE_BBDEV_DATA_ERROR;
                rte_bbdev_log(ERR,
                                "Mismatch between mbuf length and included CBs sizes");
@@ -798,7 +853,7 @@ enqueue_enc_all_ops(struct turbo_sw_queue *q, struct rte_bbdev_enc_op **ops,
 {
        uint16_t i;
 #ifdef RTE_BBDEV_OFFLOAD_COST
-       queue_stats->offload_time = 0;
+       queue_stats->acc_offload_cycles = 0;
 #endif
 
        for (i = 0; i < nb_ops; ++i)
@@ -808,86 +863,7 @@ enqueue_enc_all_ops(struct turbo_sw_queue *q, struct rte_bbdev_enc_op **ops,
                        NULL);
 }
 
-/* Remove the padding bytes from a cyclic buffer.
- * The input buffer is a data stream wk as described in 3GPP TS 36.212 section
- * 5.1.4.1.2 starting from w0 and with length Ncb bytes.
- * The output buffer is a data stream wk with pruned padding bytes. It's length
- * is 3*D bytes and the order of non-padding bytes is preserved.
- */
-static inline void
-remove_nulls_from_circular_buf(const uint8_t *in, uint8_t *out, uint16_t k,
-               uint16_t ncb)
-{
-       uint32_t in_idx, out_idx, c_idx;
-       const uint32_t d = k + 4;
-       const uint32_t kw = (ncb / 3);
-       const uint32_t nd = kw - d;
-       const uint32_t r_subblock = kw / RTE_BBDEV_C_SUBBLOCK;
-       /* Inter-column permutation pattern */
-       const uint32_t P[RTE_BBDEV_C_SUBBLOCK] = {0, 16, 8, 24, 4, 20, 12, 28,
-                       2, 18, 10, 26, 6, 22, 14, 30, 1, 17, 9, 25, 5, 21, 13,
-                       29, 3, 19, 11, 27, 7, 23, 15, 31};
-       in_idx = 0;
-       out_idx = 0;
-
-       /* The padding bytes are at the first Nd positions in the first row. */
-       for (c_idx = 0; in_idx < kw; in_idx += r_subblock, ++c_idx) {
-               if (P[c_idx] < nd) {
-                       rte_memcpy(&out[out_idx], &in[in_idx + 1],
-                                       r_subblock - 1);
-                       out_idx += r_subblock - 1;
-               } else {
-                       rte_memcpy(&out[out_idx], &in[in_idx], r_subblock);
-                       out_idx += r_subblock;
-               }
-       }
-
-       /* First and second parity bits sub-blocks are interlaced. */
-       for (c_idx = 0; in_idx < ncb - 2 * r_subblock;
-                       in_idx += 2 * r_subblock, ++c_idx) {
-               uint32_t second_block_c_idx = P[c_idx];
-               uint32_t third_block_c_idx = P[c_idx] + 1;
-
-               if (second_block_c_idx < nd && third_block_c_idx < nd) {
-                       rte_memcpy(&out[out_idx], &in[in_idx + 2],
-                                       2 * r_subblock - 2);
-                       out_idx += 2 * r_subblock - 2;
-               } else if (second_block_c_idx >= nd &&
-                               third_block_c_idx >= nd) {
-                       rte_memcpy(&out[out_idx], &in[in_idx], 2 * r_subblock);
-                       out_idx += 2 * r_subblock;
-               } else if (second_block_c_idx < nd) {
-                       out[out_idx++] = in[in_idx];
-                       rte_memcpy(&out[out_idx], &in[in_idx + 2],
-                                       2 * r_subblock - 2);
-                       out_idx += 2 * r_subblock - 2;
-               } else {
-                       rte_memcpy(&out[out_idx], &in[in_idx + 1],
-                                       2 * r_subblock - 1);
-                       out_idx += 2 * r_subblock - 1;
-               }
-       }
-
-       /* Last interlaced row is different - its last byte is the only padding
-        * 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
-        * inter-column permutation pattern as the systematic and 1st parity
-        * sub-blocks but it adds '1' to the resulting index and calculates the
-        * modulus of the result and Kw. Last column is mapped to itself (id 31)
-        * so the first byte taken from the 2nd parity sub-block will be the
-        * 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 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);
-}
-
+#ifdef RTE_BBDEV_SDK_AVX2
 static inline void
 move_padding_bytes(const uint8_t *in, uint8_t *out, uint16_t k,
                uint16_t ncb)
@@ -900,13 +876,17 @@ move_padding_bytes(const uint8_t *in, uint8_t *out, uint16_t k,
        rte_memcpy(&out[nd + kpi + 64], &in[kpi], d);
        rte_memcpy(&out[(nd - 1) + 2 * (kpi + 64)], &in[2 * kpi], d);
 }
+#endif
 
 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 crc24_overlap, uint16_t total_left)
+               struct rte_mbuf *m_out_head, struct rte_mbuf *m_out,
+               uint16_t in_offset, uint16_t out_offset, bool check_crc_24b,
+               uint16_t crc24_overlap, uint16_t in_length,
+               struct rte_bbdev_stats *q_stats)
 {
+#ifdef RTE_BBDEV_SDK_AVX2
        int ret;
        int32_t k_idx;
        int32_t iter_cnt;
@@ -917,10 +897,15 @@ process_dec_cb(struct turbo_sw_queue *q, struct rte_bbdev_dec_op *op,
        struct bblib_turbo_decoder_request turbo_req;
        struct bblib_turbo_decoder_response turbo_resp;
        struct rte_bbdev_op_turbo_dec *dec = &op->turbo_dec;
+#ifdef RTE_BBDEV_OFFLOAD_COST
+       uint64_t start_time;
+#else
+       RTE_SET_USED(q_stats);
+#endif
 
        k_idx = compute_idx(k);
 
-       ret = is_dec_input_valid(k_idx, kw, total_left);
+       ret = is_dec_input_valid(k_idx, kw, in_length);
        if (ret != 0) {
                op->status |= 1 << RTE_BBDEV_DATA_ERROR;
                return;
@@ -934,15 +919,18 @@ process_dec_cb(struct turbo_sw_queue *q, struct rte_bbdev_dec_op *op,
                struct bblib_deinterleave_ul_request deint_req;
                struct bblib_deinterleave_ul_response deint_resp;
 
-               /* SW decoder accepts only a circular buffer without NULL bytes
-                * so the input needs to be converted.
-                */
-               remove_nulls_from_circular_buf(in, q->deint_input, k, ncb);
-
-               deint_req.pharqbuffer = q->deint_input;
-               deint_req.ncb = ncb_without_null;
+               deint_req.circ_buffer = BBLIB_FULL_CIRCULAR_BUFFER;
+               deint_req.pharqbuffer = in;
+               deint_req.ncb = ncb;
                deint_resp.pinteleavebuffer = q->deint_output;
+
+#ifdef RTE_BBDEV_OFFLOAD_COST
+               start_time = rte_rdtsc_precise();
+#endif
                bblib_deinterleave_ul(&deint_req, &deint_resp);
+#ifdef RTE_BBDEV_OFFLOAD_COST
+               q_stats->acc_offload_cycles += rte_rdtsc_precise() - start_time;
+#endif
        } else
                move_padding_bytes(in, q->deint_output, k, ncb);
 
@@ -961,9 +949,18 @@ process_dec_cb(struct turbo_sw_queue *q, struct rte_bbdev_dec_op *op,
        adapter_req.ncb = ncb_without_null;
        adapter_req.pinteleavebuffer = adapter_input;
        adapter_resp.pharqout = q->adapter_output;
+
+#ifdef RTE_BBDEV_OFFLOAD_COST
+       start_time = rte_rdtsc_precise();
+#endif
+       /* Turbo decode adaptation */
        bblib_turbo_adapter_ul(&adapter_req, &adapter_resp);
+#ifdef RTE_BBDEV_OFFLOAD_COST
+       q_stats->acc_offload_cycles += rte_rdtsc_precise() - start_time;
+#endif
 
-       out = (uint8_t *)rte_pktmbuf_append(m_out, ((k - crc24_overlap) >> 3));
+       out = (uint8_t *)mbuf_append(m_out_head, 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");
@@ -986,22 +983,47 @@ process_dec_cb(struct turbo_sw_queue *q, struct rte_bbdev_dec_op *op,
        turbo_resp.ag_buf = q->ag;
        turbo_resp.cb_buf = q->code_block;
        turbo_resp.output = out;
+
+#ifdef RTE_BBDEV_OFFLOAD_COST
+       start_time = rte_rdtsc_precise();
+#endif
+       /* Turbo decode */
        iter_cnt = bblib_turbo_decoder(&turbo_req, &turbo_resp);
+#ifdef RTE_BBDEV_OFFLOAD_COST
+       q_stats->acc_offload_cycles += rte_rdtsc_precise() - start_time;
+#endif
        dec->hard_output.length += (k >> 3);
 
        if (iter_cnt > 0) {
                /* Temporary solution for returned iter_count from SDK */
-               iter_cnt = (iter_cnt - 1) / 2;
+               iter_cnt = (iter_cnt - 1) >> 1;
                dec->iter_count = RTE_MAX(iter_cnt, dec->iter_count);
        } else {
                op->status |= 1 << RTE_BBDEV_DATA_ERROR;
                rte_bbdev_log(ERR, "Turbo Decoder failed");
                return;
        }
+#else
+       RTE_SET_USED(q);
+       RTE_SET_USED(op);
+       RTE_SET_USED(c);
+       RTE_SET_USED(k);
+       RTE_SET_USED(kw);
+       RTE_SET_USED(m_in);
+       RTE_SET_USED(m_out_head);
+       RTE_SET_USED(m_out);
+       RTE_SET_USED(in_offset);
+       RTE_SET_USED(out_offset);
+       RTE_SET_USED(check_crc_24b);
+       RTE_SET_USED(crc24_overlap);
+       RTE_SET_USED(in_length);
+       RTE_SET_USED(q_stats);
+#endif
 }
 
 static inline void
-enqueue_dec_one_op(struct turbo_sw_queue *q, struct rte_bbdev_dec_op *op)
+enqueue_dec_one_op(struct turbo_sw_queue *q, struct rte_bbdev_dec_op *op,
+               struct rte_bbdev_stats *queue_stats)
 {
        uint8_t c, r = 0;
        uint16_t kw, k = 0;
@@ -1009,9 +1031,11 @@ enqueue_dec_one_op(struct turbo_sw_queue *q, struct rte_bbdev_dec_op *op)
        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;
+       struct rte_mbuf *m_out_head = dec->hard_output.data;
        uint16_t in_offset = dec->input.offset;
-       uint16_t total_left = dec->input.length;
        uint16_t out_offset = dec->hard_output.offset;
+       uint32_t mbuf_total_left = dec->input.length;
+       uint16_t seg_total_left;
 
        /* Clear op status */
        op->status = 0;
@@ -1033,11 +1057,13 @@ enqueue_dec_one_op(struct turbo_sw_queue *q, struct rte_bbdev_dec_op *op)
                RTE_BBDEV_TURBO_DEC_TB_CRC_24B_KEEP))
                crc24_overlap = 24;
 
-       while (total_left > 0) {
+       while (mbuf_total_left > 0) {
                if (dec->code_block_mode == 0)
                        k = (r < dec->tb_params.c_neg) ?
                                dec->tb_params.k_neg : dec->tb_params.k_pos;
 
+               seg_total_left = rte_pktmbuf_data_len(m_in) - in_offset;
+
                /* Calculates circular buffer size (Kw).
                 * According to 3gpp 36.212 section 5.1.4.2
                 *   Kw = 3 * Kpi,
@@ -1050,23 +1076,32 @@ enqueue_dec_one_op(struct turbo_sw_queue *q, struct rte_bbdev_dec_op *op)
                 */
                kw = RTE_ALIGN_CEIL(k + 4, RTE_BBDEV_C_SUBBLOCK) * 3;
 
-               process_dec_cb(q, op, c, k, kw, m_in, m_out, in_offset,
-                               out_offset, check_bit(dec->op_flags,
+               process_dec_cb(q, op, c, k, kw, m_in, m_out_head, m_out,
+                               in_offset, out_offset, check_bit(dec->op_flags,
                                RTE_BBDEV_TURBO_CRC_TYPE_24B), crc24_overlap,
-                               total_left);
+                               seg_total_left, queue_stats);
                /* 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 - crc24_overlap) >> 3);
+               mbuf_total_left -= kw;
+
+               /* Update offsets */
+               if (seg_total_left == kw) {
+                       /* Go to the next mbuf */
+                       m_in = m_in->next;
+                       m_out = m_out->next;
+                       in_offset = 0;
+                       out_offset = 0;
+               } else {
+                       /* Update offsets for next CBs (if exist) */
+                       in_offset += kw;
+                       out_offset += ((k - crc24_overlap) >> 3);
+               }
                r++;
        }
-       if (total_left != 0) {
+       if (mbuf_total_left != 0) {
                op->status |= 1 << RTE_BBDEV_DATA_ERROR;
                rte_bbdev_log(ERR,
                                "Mismatch between mbuf length and included Circular buffer sizes");
@@ -1075,12 +1110,15 @@ enqueue_dec_one_op(struct turbo_sw_queue *q, struct rte_bbdev_dec_op *op)
 
 static inline uint16_t
 enqueue_dec_all_ops(struct turbo_sw_queue *q, struct rte_bbdev_dec_op **ops,
-               uint16_t nb_ops)
+               uint16_t nb_ops, struct rte_bbdev_stats *queue_stats)
 {
        uint16_t i;
+#ifdef RTE_BBDEV_OFFLOAD_COST
+       queue_stats->acc_offload_cycles = 0;
+#endif
 
        for (i = 0; i < nb_ops; ++i)
-               enqueue_dec_one_op(q, ops[i]);
+               enqueue_dec_one_op(q, ops[i], queue_stats);
 
        return rte_ring_enqueue_burst(q->processed_pkts, (void **)ops, nb_ops,
                        NULL);
@@ -1112,7 +1150,7 @@ enqueue_dec_ops(struct rte_bbdev_queue_data *q_data,
        struct turbo_sw_queue *q = queue;
        uint16_t nb_enqueued = 0;
 
-       nb_enqueued = enqueue_dec_all_ops(q, ops, nb_ops);
+       nb_enqueued = enqueue_dec_all_ops(q, ops, nb_ops, &q_data->queue_stats);
 
        q_data->queue_stats.enqueue_err_count += nb_ops - nb_enqueued;
        q_data->queue_stats.enqueued_count += nb_enqueued;
@@ -1297,10 +1335,9 @@ RTE_PMD_REGISTER_VDEV(DRIVER_NAME, bbdev_turbo_sw_pmd_drv);
 RTE_PMD_REGISTER_PARAM_STRING(DRIVER_NAME,
        TURBO_SW_MAX_NB_QUEUES_ARG"=<int> "
        TURBO_SW_SOCKET_ID_ARG"=<int>");
+RTE_PMD_REGISTER_ALIAS(DRIVER_NAME, turbo_sw);
 
-RTE_INIT(null_bbdev_init_log);
-static void
-null_bbdev_init_log(void)
+RTE_INIT(turbo_sw_bbdev_init_log)
 {
        bbdev_turbo_sw_logtype = rte_log_register("pmd.bb.turbo_sw");
        if (bbdev_turbo_sw_logtype >= 0)