baseband/turbo_sw: support CRC16

This is to support the case for operation
where CRC16 is to be appended or checked.

Signed-off-by: Nicolas Chautru <nicolas.chautru@intel.com>
Reviewed-by: Tom Rix <trix@redhat.com>

diff --git a/doc/guides/rel_notes/release_21_11.rst b/doc/guides/rel_notes/release_21_11.rst
index fdffc48..e0e12d2 100644 (file)
--- a/doc/guides/rel_notes/release_21_11.rst
+++ b/doc/guides/rel_notes/release_21_11.rst
@@ -122,6 +122,10 @@ New Features
 
   * Added PDCP short MAC-I support.
 
+* **Updated the turbo_sw bbdev PMD.**
+
+  Added support for more comprehensive CRC options.
+
 * **Added multi-process support for testpmd.**
 
   Added command-line options to specify total number of processes and

diff --git a/drivers/baseband/turbo_sw/bbdev_turbo_software.c b/drivers/baseband/turbo_sw/bbdev_turbo_software.c
index 77e9a2e..e1db2bf 100644 (file)
--- a/drivers/baseband/turbo_sw/bbdev_turbo_software.c
+++ b/drivers/baseband/turbo_sw/bbdev_turbo_software.c
@@ -199,6 +199,7 @@ info_get(struct rte_bbdev *dev, struct rte_bbdev_driver_info *dev_info)
                        .cap.ldpc_enc = {
                                .capability_flags =
                                                RTE_BBDEV_LDPC_RATE_MATCH |
+                                               RTE_BBDEV_LDPC_CRC_16_ATTACH |
                                                RTE_BBDEV_LDPC_CRC_24A_ATTACH |
                                                RTE_BBDEV_LDPC_CRC_24B_ATTACH,
                                .num_buffers_src =
@@ -211,6 +212,7 @@ info_get(struct rte_bbdev *dev, struct rte_bbdev_driver_info *dev_info)
                .type   = RTE_BBDEV_OP_LDPC_DEC,
                .cap.ldpc_dec = {
                        .capability_flags =
+                                       RTE_BBDEV_LDPC_CRC_TYPE_16_CHECK |
                                        RTE_BBDEV_LDPC_CRC_TYPE_24B_CHECK |
                                        RTE_BBDEV_LDPC_CRC_TYPE_24A_CHECK |
                                        RTE_BBDEV_LDPC_CRC_TYPE_24B_DROP |
@@ -880,6 +882,12 @@ process_ldpc_enc_cb(struct turbo_sw_queue *q, struct rte_bbdev_enc_op *op,
                crc_req.len = in_length_in_bits - 24;
                crc_resp.data = q->enc_in;
                bblib_lte_crc24b_gen(&crc_req, &crc_resp);
+       } else if (enc->op_flags & RTE_BBDEV_LDPC_CRC_16_ATTACH) {
+               rte_memcpy(q->enc_in, in, in_length_in_bytes - 2);
+               crc_req.data = in;
+               crc_req.len = in_length_in_bits - 16;
+               crc_resp.data = q->enc_in;
+               bblib_lte_crc16_gen(&crc_req, &crc_resp);
        } else
                rte_memcpy(q->enc_in, in, in_length_in_bytes);
 
@@ -1491,6 +1499,14 @@ process_ldpc_dec_cb(struct turbo_sw_queue *q, struct rte_bbdev_dec_op *op,
                        bblib_lte_crc24a_check(&crc_req, &crc_resp);
                if (!crc_resp.check_passed)
                        op->status |= 1 << RTE_BBDEV_CRC_ERROR;
+       } else if (check_bit(dec->op_flags, RTE_BBDEV_LDPC_CRC_TYPE_16_CHECK)) {
+               crc_req.data = adapter_input;
+               crc_req.len  = K - dec->n_filler - 16;
+               crc_resp.check_passed = false;
+               crc_resp.data = adapter_input;
+               bblib_lte_crc16_check(&crc_req, &crc_resp);
+               if (!crc_resp.check_passed)
+                       op->status |= 1 << RTE_BBDEV_CRC_ERROR;
        }
 
 #ifdef RTE_BBDEV_OFFLOAD_COST