ice: add parser create and destroy skeleton

Add new parser module which can parse a packet in binary and generate
information like ptype, protocol/offset pairs and flags which can be later
used to feed the FXP profile creation directly.

Add skeleton of the create and destroy APIs:
ice_parser_create()
ice_parser_destroy()

Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Marcin Szycik <marcin.szycik@linux.intel.com>
Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Signed-off-by: Junfeng Guo <junfeng.guo@intel.com>
Co-developed-by: Ahmed Zaki <ahmed.zaki@intel.com>
Signed-off-by: Ahmed Zaki <ahmed.zaki@intel.com>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

diff --git a/drivers/net/ethernet/intel/ice/Makefile b/drivers/net/ethernet/intel/ice/Makefile
index 03500e28ac99c931f9fa66fc338a2557f10792f5..23fa3f7f36ef521b8708919b7f44b090179a4df1 100644 (file)
--- a/drivers/net/ethernet/intel/ice/Makefile
+++ b/drivers/net/ethernet/intel/ice/Makefile
@@ -28,6 +28,7 @@ ice-y := ice_main.o   \
         ice_vlan_mode.o \
         ice_flex_pipe.o \
         ice_flow.o     \
+        ice_parser.o    \
         ice_idc.o      \
         devlink/devlink.o      \
         devlink/devlink_port.o \

diff --git a/drivers/net/ethernet/intel/ice/ice_common.h b/drivers/net/ethernet/intel/ice/ice_common.h
index 66f29bac783a0cf5c1d21f14ae0b4ca65bd95310..27208a60cece51f49d928a09ec6e9dcbb27fb9b1 100644 (file)
--- a/drivers/net/ethernet/intel/ice/ice_common.h
+++ b/drivers/net/ethernet/intel/ice/ice_common.h
@@ -10,6 +10,7 @@
 #include "ice_type.h"
 #include "ice_nvm.h"
 #include "ice_flex_pipe.h"
+#include "ice_parser.h"
 #include <linux/avf/virtchnl.h>
 #include "ice_switch.h"
 #include "ice_fdir.h"

diff --git a/drivers/net/ethernet/intel/ice/ice_parser.c b/drivers/net/ethernet/intel/ice/ice_parser.c
new file mode 100644 (file)
index 0000000..6c50164
--- /dev/null
+++ b/drivers/net/ethernet/intel/ice/ice_parser.c
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2024 Intel Corporation */
+
+#include "ice_common.h"
+
+/**
+ * ice_parser_create - create a parser instance
+ * @hw: pointer to the hardware structure
+ *
+ * Return: a pointer to the allocated parser instance or ERR_PTR
+ * in case of error.
+ */
+struct ice_parser *ice_parser_create(struct ice_hw *hw)
+{
+       struct ice_parser *p;
+
+       p = kzalloc(sizeof(*p), GFP_KERNEL);
+       if (!p)
+               return ERR_PTR(-ENOMEM);
+
+       p->hw = hw;
+       return p;
+}
+
+/**
+ * ice_parser_destroy - destroy a parser instance
+ * @psr: pointer to a parser instance
+ */
+void ice_parser_destroy(struct ice_parser *psr)
+{
+       kfree(psr);
+}

diff --git a/drivers/net/ethernet/intel/ice/ice_parser.h b/drivers/net/ethernet/intel/ice/ice_parser.h
new file mode 100644 (file)
index 0000000..09ed380
--- /dev/null
+++ b/drivers/net/ethernet/intel/ice/ice_parser.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2024 Intel Corporation */
+
+#ifndef _ICE_PARSER_H_
+#define _ICE_PARSER_H_
+
+struct ice_parser {
+       struct ice_hw *hw; /* pointer to the hardware structure */
+};
+
+struct ice_parser *ice_parser_create(struct ice_hw *hw);
+void ice_parser_destroy(struct ice_parser *psr);
+#endif /* _ICE_PARSER_H_ */