[dpdk-dev] [PATCH v3 06/11] baseband/fpga_5gnr_fec: add HW error capture

[Nicolas Chautru]

Adding HW specific parsing of error report for
negative scenarios. Not hit through unit test.

Signed-off-by: Nicolas Chautru <nicolas.chau...@intel.com>
---
 drivers/baseband/fpga_5gnr_fec/rte_fpga_5gnr_fec.c | 56 ++++++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/drivers/baseband/fpga_5gnr_fec/rte_fpga_5gnr_fec.c 
b/drivers/baseband/fpga_5gnr_fec/rte_fpga_5gnr_fec.c
index b1c883a..9dc92fc 100644
--- a/drivers/baseband/fpga_5gnr_fec/rte_fpga_5gnr_fec.c
+++ b/drivers/baseband/fpga_5gnr_fec/rte_fpga_5gnr_fec.c
@@ -519,6 +519,54 @@
        return bitmap & bitmask;
 }
 
+/* Print an error if a descriptor error has occurred.
+ *  Return 0 on success, 1 on failure
+ */
+static inline int
+check_desc_error(uint32_t error_code) {
+       switch (error_code) {
+       case DESC_ERR_NO_ERR:
+               return 0;
+       case DESC_ERR_K_P_OUT_OF_RANGE:
+               rte_bbdev_log(ERR, "Encode block size K' is out of range");
+               break;
+       case DESC_ERR_Z_C_NOT_LEGAL:
+               rte_bbdev_log(ERR, "Zc is illegal");
+               break;
+       case DESC_ERR_DESC_OFFSET_ERR:
+               rte_bbdev_log(ERR,
+                               "Queue offset does not meet the expectation in 
the FPGA"
+                               );
+               break;
+       case DESC_ERR_DESC_READ_FAIL:
+               rte_bbdev_log(ERR, "Unsuccessful completion for descriptor 
read");
+               break;
+       case DESC_ERR_DESC_READ_TIMEOUT:
+               rte_bbdev_log(ERR, "Descriptor read time-out");
+               break;
+       case DESC_ERR_DESC_READ_TLP_POISONED:
+               rte_bbdev_log(ERR, "Descriptor read TLP poisoned");
+               break;
+       case DESC_ERR_CB_READ_FAIL:
+               rte_bbdev_log(ERR, "Unsuccessful completion for code block");
+               break;
+       case DESC_ERR_CB_READ_TIMEOUT:
+               rte_bbdev_log(ERR, "Code block read time-out");
+               break;
+       case DESC_ERR_CB_READ_TLP_POISONED:
+               rte_bbdev_log(ERR, "Code block read TLP poisoned");
+               break;
+       case DESC_ERR_HBSTORE_ERR:
+               rte_bbdev_log(ERR, "Hbstroe exceeds HARQ buffer size.");
+               break;
+       default:
+               rte_bbdev_log(ERR, "Descriptor error unknown error code %u",
+                               error_code);
+               break;
+       }
+       return 1;
+}
+
 /* Compute value of k0.
  * Based on 3GPP 38.212 Table 5.4.2.1-2
  * Starting position of different redundancy versions, k0
@@ -1000,6 +1048,11 @@
 
        rte_bbdev_log_debug("DMA response desc %p", desc);
 
+       *op = desc->enc_req.op_addr;
+       /* Check the descriptor error field, return 1 on error */
+       desc_error = check_desc_error(desc->enc_req.error);
+       (*op)->status = desc_error << RTE_BBDEV_DATA_ERROR;
+
        return 1;
 }
 
@@ -1036,6 +1089,9 @@
                (*op)->status = 1 << RTE_BBDEV_CRC_ERROR;
        /* et_pass = 0 when decoder fails */
        (*op)->status |= !(desc->dec_req.et_pass) << RTE_BBDEV_SYNDROME_ERROR;
+       /* Check the descriptor error field, return 1 on error */
+       desc_error = check_desc_error(desc->dec_req.error);
+       (*op)->status |= desc_error << RTE_BBDEV_DATA_ERROR;
        return 1;
 }
 
-- 
1.8.3.1