[dpdk-dev] [PATCH 14/52] i40e/base: Add Debug Dump Internal Data AQ command

[Jingjing Wu <jingjing.wu@intel.com>]

This patch adds support for "Debug Dump Internal Data" AQ command.
It is used to dump internal firmware or hardware data for debug
purposes.

Signed-off-by: Jingjing Wu <jingjing.wu@intel.com>
---
 drivers/net/i40e/base/i40e_common.c    | 57 ++++++++++++++++++++++++++++++++++
 drivers/net/i40e/base/i40e_prototype.h |  5 +++
 2 files changed, 62 insertions(+)

diff --git a/drivers/net/i40e/base/i40e_common.c b/drivers/net/i40e/base/i40e_common.c
index c21beba..3617f01 100644
--- a/drivers/net/i40e/base/i40e_common.c
+++ b/drivers/net/i40e/base/i40e_common.c
@@ -5264,6 +5264,63 @@ void i40e_set_pci_config_data(struct i40e_hw *hw, u16 link_status)
 }
 
 /**
+ * i40e_aq_debug_dump
+ * @hw: pointer to the hardware structure
+ * @cluster_id: specific cluster to dump
+ * @table_id: table id within cluster
+ * @start_index: index of line in the block to read
+ * @buff_size: dump buffer size
+ * @buff: dump buffer
+ * @ret_buff_size: actual buffer size returned
+ * @ret_next_table: next block to read
+ * @ret_next_index: next index to read
+ *
+ * Dump internal FW/HW data for debug purposes.
+ *
+ **/
+enum i40e_status_code i40e_aq_debug_dump(struct i40e_hw *hw, u8 cluster_id,
+				u8 table_id, u32 start_index, u16 buff_size,
+				void *buff, u16 *ret_buff_size,
+				u8 *ret_next_table, u32 *ret_next_index,
+				struct i40e_asq_cmd_details *cmd_details)
+{
+	struct i40e_aq_desc desc;
+	struct i40e_aqc_debug_dump_internals *cmd =
+		(struct i40e_aqc_debug_dump_internals *)&desc.params.raw;
+	struct i40e_aqc_debug_dump_internals *resp =
+		(struct i40e_aqc_debug_dump_internals *)&desc.params.raw;
+	enum i40e_status_code status;
+
+	if (buff_size == 0 || !buff)
+		return I40E_ERR_PARAM;
+
+	i40e_fill_default_direct_cmd_desc(&desc,
+					  i40e_aqc_opc_debug_dump_internals);
+	/* Indirect Command */
+	desc.flags |= CPU_TO_LE16((u16)I40E_AQ_FLAG_BUF);
+	if (buff_size > I40E_AQ_LARGE_BUF)
+		desc.flags |= CPU_TO_LE16((u16)I40E_AQ_FLAG_LB);
+
+	cmd->cluster_id = cluster_id;
+	cmd->table_id = table_id;
+	cmd->idx = CPU_TO_LE32(start_index);
+
+	desc.datalen = CPU_TO_LE16(buff_size);
+
+	status = i40e_asq_send_command(hw, &desc, buff, buff_size, cmd_details);
+	if (!status) {
+		if (ret_buff_size != NULL)
+			*ret_buff_size = LE16_TO_CPU(desc.datalen);
+		if (ret_next_table != NULL)
+			*ret_next_table = resp->table_id;
+		if (ret_next_index != NULL)
+			*ret_next_index = LE32_TO_CPU(resp->idx);
+	}
+
+	return status;
+}
+
+/**
  * i40e_read_bw_from_alt_ram
  * @hw: pointer to the hardware structure
  * @max_bw: pointer for max_bw read
diff --git a/drivers/net/i40e/base/i40e_prototype.h b/drivers/net/i40e/base/i40e_prototype.h
index 139ff19..eadbebe 100644
--- a/drivers/net/i40e/base/i40e_prototype.h
+++ b/drivers/net/i40e/base/i40e_prototype.h
@@ -459,6 +459,11 @@ enum i40e_status_code i40e_aq_add_rem_control_packet_filter(struct i40e_hw *hw,
 				u16 vsi_seid, u16 queue, bool is_add,
 				struct i40e_control_filter_stats *stats,
 				struct i40e_asq_cmd_details *cmd_details);
+enum i40e_status_code i40e_aq_debug_dump(struct i40e_hw *hw, u8 cluster_id,
+				u8 table_id, u32 start_index, u16 buff_size,
+				void *buff, u16 *ret_buff_size,
+				u8 *ret_next_table, u32 *ret_next_index,
+				struct i40e_asq_cmd_details *cmd_details);
 void i40e_add_filter_to_drop_tx_flow_control_frames(struct i40e_hw *hw,
 						    u16 vsi_seid);
 #endif /* _I40E_PROTOTYPE_H_ */
-- 
2.4.0