ice, libie: move fwlog code to libie

Move whole code from ice_fwlog.c/h to libie/fwlog.c/h.

Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel)
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

2 files changed, 88 insertions, 3 deletions

diff --git a/include/linux/net/intel/libie/adminq.h b/include/linux/net/intel/libie/adminq.h
index 29420193889a..ab13bd777a28 100644
--- a/include/linux/net/intel/libie/adminq.h
+++ b/include/linux/net/intel/libie/adminq.h
@@ -265,7 +265,7 @@ enum libie_aqc_fw_logging_mod {
 	LIBIE_AQC_FW_LOG_ID_TSDRV,
 	LIBIE_AQC_FW_LOG_ID_PFREG,
 	LIBIE_AQC_FW_LOG_ID_MDLVER,
-	LIBIE_AQC_FW_LOG_ID_MAX,
+	LIBIE_AQC_FW_LOG_ID_MAX
 };
 
 /* Set FW Logging configuration (indirect 0xFF30)
@@ -280,8 +280,8 @@ enum libie_aqc_fw_logging_mod {
 #define LIBIE_AQC_FW_LOG_AQ_REGISTER		BIT(0)
 #define LIBIE_AQC_FW_LOG_AQ_QUERY		BIT(2)
 
-#define LIBIE_AQC_FW_LOG_MIN_RESOLUTION		(1)
-#define LIBIE_AQC_FW_LOG_MAX_RESOLUTION		(128)
+#define LIBIE_AQC_FW_LOG_MIN_RESOLUTION		1
+#define LIBIE_AQC_FW_LOG_MAX_RESOLUTION		128
 
 struct libie_aqc_fw_log {
 	u8 cmd_flags;
diff --git a/include/linux/net/intel/libie/fwlog.h b/include/linux/net/intel/libie/fwlog.h
new file mode 100644
index 000000000000..36b13fabca9e
--- /dev/null
+++ b/include/linux/net/intel/libie/fwlog.h
@@ -0,0 +1,85 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2022, Intel Corporation. */
+
+#ifndef _LIBIE_FWLOG_H_
+#define _LIBIE_FWLOG_H_
+
+#include <linux/net/intel/libie/adminq.h>
+
+/* Only a single log level should be set and all log levels under the set value
+ * are enabled, e.g. if log level is set to LIBIE_FW_LOG_LEVEL_VERBOSE, then all
+ * other log levels are included (except LIBIE_FW_LOG_LEVEL_NONE)
+ */
+enum libie_fwlog_level {
+	LIBIE_FWLOG_LEVEL_NONE = 0,
+	LIBIE_FWLOG_LEVEL_ERROR = 1,
+	LIBIE_FWLOG_LEVEL_WARNING = 2,
+	LIBIE_FWLOG_LEVEL_NORMAL = 3,
+	LIBIE_FWLOG_LEVEL_VERBOSE = 4,
+	LIBIE_FWLOG_LEVEL_INVALID, /* all values >= this entry are invalid */
+};
+
+struct libie_fwlog_module_entry {
+	/* module ID for the corresponding firmware logging event */
+	u16 module_id;
+	/* verbosity level for the module_id */
+	u8 log_level;
+};
+
+struct libie_fwlog_cfg {
+	/* list of modules for configuring log level */
+	struct libie_fwlog_module_entry module_entries[LIBIE_AQC_FW_LOG_ID_MAX];
+	/* options used to configure firmware logging */
+	u16 options;
+#define LIBIE_FWLOG_OPTION_ARQ_ENA		BIT(0)
+#define LIBIE_FWLOG_OPTION_UART_ENA		BIT(1)
+	/* set before calling libie_fwlog_init() so the PF registers for
+	 * firmware logging on initialization
+	 */
+#define LIBIE_FWLOG_OPTION_REGISTER_ON_INIT	BIT(2)
+	/* set in the libie_aq_fwlog_get() response if the PF is registered for
+	 * FW logging events over ARQ
+	 */
+#define LIBIE_FWLOG_OPTION_IS_REGISTERED	BIT(3)
+
+	/* minimum number of log events sent per Admin Receive Queue event */
+	u16 log_resolution;
+};
+
+struct libie_fwlog_data {
+	u16 data_size;
+	u8 *data;
+};
+
+struct libie_fwlog_ring {
+	struct libie_fwlog_data *rings;
+	u16 index;
+	u16 size;
+	u16 head;
+	u16 tail;
+};
+
+#define LIBIE_FWLOG_RING_SIZE_INDEX_DFLT 3
+#define LIBIE_FWLOG_RING_SIZE_DFLT 256
+#define LIBIE_FWLOG_RING_SIZE_MAX 512
+
+struct libie_fwlog {
+	struct libie_fwlog_cfg cfg;
+	bool supported; /* does hardware support FW logging? */
+	struct libie_fwlog_ring ring;
+	struct dentry *debugfs;
+	/* keep track of all the dentrys for FW log modules */
+	struct dentry **debugfs_modules;
+	struct_group_tagged(libie_fwlog_api, api,
+		struct pci_dev *pdev;
+		int (*send_cmd)(void *, struct libie_aq_desc *, void *, u16);
+		void *priv;
+		struct dentry *debugfs_root;
+	);
+};
+
+int libie_fwlog_init(struct libie_fwlog *fwlog, struct libie_fwlog_api *api);
+void libie_fwlog_deinit(struct libie_fwlog *fwlog);
+void libie_fwlog_reregister(struct libie_fwlog *fwlog);
+void libie_get_fwlog_data(struct libie_fwlog *fwlog, u8 *buf, u16 len);
+#endif /* _LIBIE_FWLOG_H_ */