[dpdk-dev] [PATCH 03/28] bnxt: add additonal HWRM debug info to error messages

[Ajit Khaparde <ajit.khaparde@broadcom.com>]

Add the cmd_err and opaque_0 and opaque_1 fields to HWRM error
messages.  These allow better debugging of some classes of HWRM
errors.

Signed-off-by: Stephen Hurd <stephen.hurd@broadcom.com>
Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
---
 drivers/net/bnxt/bnxt_hwrm.c           | 17 +++++++++++++++-
 drivers/net/bnxt/hsi_struct_def_dpdk.h | 36 ++++++++++++++++++++++++++++++++++
 2 files changed, 52 insertions(+), 1 deletion(-)

diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index 2a24610..cb974d5 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -140,7 +140,22 @@ static int bnxt_hwrm_send_message(struct bnxt *bp, void *msg, uint32_t msg_len)
 		} \
 		if (resp->error_code) { \
 			rc = rte_le_to_cpu_16(resp->error_code); \
-			RTE_LOG(ERR, PMD, "%s error %d\n", __func__, rc); \
+			if (resp->resp_len >= 16) { \
+				struct hwrm_err_output *tmp_hwrm_err_op = \
+							(void *)resp; \
+				RTE_LOG(ERR, PMD, \
+					"%s error %d:%d:%08x:%04x\n", \
+					__func__, \
+					rc, tmp_hwrm_err_op->cmd_err, \
+					rte_le_to_cpu_32(\
+						tmp_hwrm_err_op->opaque_0), \
+					rte_le_to_cpu_16(\
+						tmp_hwrm_err_op->opaque_1)); \
+			} \
+			else { \
+				RTE_LOG(ERR, PMD, \
+					"%s error %d\n", __func__, rc); \
+			} \
 			return rc; \
 		} \
 	}
diff --git a/drivers/net/bnxt/hsi_struct_def_dpdk.h b/drivers/net/bnxt/hsi_struct_def_dpdk.h
index 0635dd2..9cb3f76 100644
--- a/drivers/net/bnxt/hsi_struct_def_dpdk.h
+++ b/drivers/net/bnxt/hsi_struct_def_dpdk.h
@@ -1319,6 +1319,42 @@ struct output {
 	 */
 } __attribute__((packed));
 
+/* Output (16 bytes) */
+struct hwrm_err_output {
+	uint16_t error_code;
+	/*
+	 * Pass/Fail or error type Note: receiver to verify the in parameters,
+	 * and fail the call with an error when appropriate
+	 */
+	uint16_t req_type;
+	/* This field returns the type of original request. */
+	uint16_t seq_id;
+	/* This field provides original sequence number of the command. */
+	uint16_t resp_len;
+	/*
+	 * This field is the length of the response in bytes. The last byte of
+	 * the response is a valid flag that will read as '1' when the command
+	 * has been completely written to memory.
+	 */
+	uint32_t opaque_0;
+	/* debug info for this error response. */
+	uint16_t opaque_1;
+	/* debug info for this error response. */
+	uint8_t cmd_err;
+	/*
+	 * In the case of an error response, command specific error code is
+	 * returned in this field.
+	 */
+	uint8_t valid;
+	/*
+	 * This field is used in Output records to indicate that the output is
+	 * completely written to RAM. This field should be read as '1' to
+	 * indicate that the output has been completely written. When writing a
+	 * command completion or response to an internal processor, the order of
+	 * writes has to be such that this field is written last.
+	 */
+} __attribute__((packed));
+
 /* hwrm_ver_get */
 /*
  * Description: This function is called by a driver to determine the HWRM
-- 
2.10.1 (Apple Git-78)