1 files changed, 0 insertions, 474 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_fwlog.c b/drivers/net/ethernet/intel/ice/ice_fwlog.c
deleted file mode 100644
index a31bb026ad34..000000000000
--- a/drivers/net/ethernet/intel/ice/ice_fwlog.c
+++ /dev/null
@@ -1,474 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/* Copyright (c) 2022, Intel Corporation. */
-
-#include <linux/vmalloc.h>
-#include "ice.h"
-#include "ice_common.h"
-#include "ice_fwlog.h"
-
-bool ice_fwlog_ring_full(struct ice_fwlog_ring *rings)
-{
-	u16 head, tail;
-
-	head = rings->head;
-	tail = rings->tail;
-
-	if (head < tail && (tail - head == (rings->size - 1)))
-		return true;
-	else if (head > tail && (tail == (head - 1)))
-		return true;
-
-	return false;
-}
-
-bool ice_fwlog_ring_empty(struct ice_fwlog_ring *rings)
-{
-	return rings->head == rings->tail;
-}
-
-void ice_fwlog_ring_increment(u16 *item, u16 size)
-{
-	*item = (*item + 1) & (size - 1);
-}
-
-static int ice_fwlog_alloc_ring_buffs(struct ice_fwlog_ring *rings)
-{
-	int i, nr_bytes;
-	u8 *mem;
-
-	nr_bytes = rings->size * ICE_AQ_MAX_BUF_LEN;
-	mem = vzalloc(nr_bytes);
-	if (!mem)
-		return -ENOMEM;
-
-	for (i = 0; i < rings->size; i++) {
-		struct ice_fwlog_data *ring = &rings->rings[i];
-
-		ring->data_size = ICE_AQ_MAX_BUF_LEN;
-		ring->data = mem;
-		mem += ICE_AQ_MAX_BUF_LEN;
-	}
-
-	return 0;
-}
-
-static void ice_fwlog_free_ring_buffs(struct ice_fwlog_ring *rings)
-{
-	int i;
-
-	for (i = 0; i < rings->size; i++) {
-		struct ice_fwlog_data *ring = &rings->rings[i];
-
-		/* the first ring is the base memory for the whole range so
-		 * free it
-		 */
-		if (!i)
-			vfree(ring->data);
-
-		ring->data = NULL;
-		ring->data_size = 0;
-	}
-}
-
-#define ICE_FWLOG_INDEX_TO_BYTES(n) ((128 * 1024) << (n))
-/**
- * ice_fwlog_realloc_rings - reallocate the FW log rings
- * @hw: pointer to the HW structure
- * @index: the new index to use to allocate memory for the log data
- *
- */
-void ice_fwlog_realloc_rings(struct ice_hw *hw, int index)
-{
-	struct ice_fwlog_ring ring;
-	int status, ring_size;
-
-	/* convert the number of bytes into a number of 4K buffers. externally
-	 * the driver presents the interface to the FW log data as a number of
-	 * bytes because that's easy for users to understand. internally the
-	 * driver uses a ring of buffers because the driver doesn't know where
-	 * the beginning and end of any line of log data is so the driver has
-	 * to overwrite data as complete blocks. when the data is returned to
-	 * the user the driver knows that the data is correct and the FW log
-	 * can be correctly parsed by the tools
-	 */
-	ring_size = ICE_FWLOG_INDEX_TO_BYTES(index) / ICE_AQ_MAX_BUF_LEN;
-	if (ring_size == hw->fwlog_ring.size)
-		return;
-
-	/* allocate space for the new rings and buffers then release the
-	 * old rings and buffers. that way if we don't have enough
-	 * memory then we at least have what we had before
-	 */
-	ring.rings = kcalloc(ring_size, sizeof(*ring.rings), GFP_KERNEL);
-	if (!ring.rings)
-		return;
-
-	ring.size = ring_size;
-
-	status = ice_fwlog_alloc_ring_buffs(&ring);
-	if (status) {
-		dev_warn(ice_hw_to_dev(hw), "Unable to allocate memory for FW log ring data buffers\n");
-		ice_fwlog_free_ring_buffs(&ring);
-		kfree(ring.rings);
-		return;
-	}
-
-	ice_fwlog_free_ring_buffs(&hw->fwlog_ring);
-	kfree(hw->fwlog_ring.rings);
-
-	hw->fwlog_ring.rings = ring.rings;
-	hw->fwlog_ring.size = ring.size;
-	hw->fwlog_ring.index = index;
-	hw->fwlog_ring.head = 0;
-	hw->fwlog_ring.tail = 0;
-}
-
-/**
- * ice_fwlog_init - Initialize FW logging configuration
- * @hw: pointer to the HW structure
- *
- * This function should be called on driver initialization during
- * ice_init_hw().
- */
-int ice_fwlog_init(struct ice_hw *hw)
-{
-	/* only support fw log commands on PF 0 */
-	if (hw->bus.func)
-		return -EINVAL;
-
-	ice_fwlog_set_supported(hw);
-
-	if (ice_fwlog_supported(hw)) {
-		int status;
-
-		/* read the current config from the FW and store it */
-		status = ice_fwlog_get(hw, &hw->fwlog_cfg);
-		if (status)
-			return status;
-
-		hw->fwlog_ring.rings = kcalloc(ICE_FWLOG_RING_SIZE_DFLT,
-					       sizeof(*hw->fwlog_ring.rings),
-					       GFP_KERNEL);
-		if (!hw->fwlog_ring.rings) {
-			dev_warn(ice_hw_to_dev(hw), "Unable to allocate memory for FW log rings\n");
-			return -ENOMEM;
-		}
-
-		hw->fwlog_ring.size = ICE_FWLOG_RING_SIZE_DFLT;
-		hw->fwlog_ring.index = ICE_FWLOG_RING_SIZE_INDEX_DFLT;
-
-		status = ice_fwlog_alloc_ring_buffs(&hw->fwlog_ring);
-		if (status) {
-			dev_warn(ice_hw_to_dev(hw), "Unable to allocate memory for FW log ring data buffers\n");
-			ice_fwlog_free_ring_buffs(&hw->fwlog_ring);
-			kfree(hw->fwlog_ring.rings);
-			return status;
-		}
-
-		ice_debugfs_fwlog_init(hw->back);
-	} else {
-		dev_warn(ice_hw_to_dev(hw), "FW logging is not supported in this NVM image. Please update the NVM to get FW log support\n");
-	}
-
-	return 0;
-}
-
-/**
- * ice_fwlog_deinit - unroll FW logging configuration
- * @hw: pointer to the HW structure
- *
- * This function should be called in ice_deinit_hw().
- */
-void ice_fwlog_deinit(struct ice_hw *hw)
-{
-	struct ice_pf *pf = hw->back;
-	int status;
-
-	/* only support fw log commands on PF 0 */
-	if (hw->bus.func)
-		return;
-
-	ice_debugfs_pf_deinit(hw->back);
-
-	/* make sure FW logging is disabled to not put the FW in a weird state
-	 * for the next driver load
-	 */
-	hw->fwlog_cfg.options &= ~ICE_FWLOG_OPTION_ARQ_ENA;
-	status = ice_fwlog_set(hw, &hw->fwlog_cfg);
-	if (status)
-		dev_warn(ice_hw_to_dev(hw), "Unable to turn off FW logging, status: %d\n",
-			 status);
-
-	kfree(pf->ice_debugfs_pf_fwlog_modules);
-
-	pf->ice_debugfs_pf_fwlog_modules = NULL;
-
-	status = ice_fwlog_unregister(hw);
-	if (status)
-		dev_warn(ice_hw_to_dev(hw), "Unable to unregister FW logging, status: %d\n",
-			 status);
-
-	if (hw->fwlog_ring.rings) {
-		ice_fwlog_free_ring_buffs(&hw->fwlog_ring);
-		kfree(hw->fwlog_ring.rings);
-	}
-}
-
-/**
- * ice_fwlog_supported - Cached for whether FW supports FW logging or not
- * @hw: pointer to the HW structure
- *
- * This will always return false if called before ice_init_hw(), so it must be
- * called after ice_init_hw().
- */
-bool ice_fwlog_supported(struct ice_hw *hw)
-{
-	return hw->fwlog_supported;
-}
-
-/**
- * ice_aq_fwlog_set - Set FW logging configuration AQ command (0xFF30)
- * @hw: pointer to the HW structure
- * @entries: entries to configure
- * @num_entries: number of @entries
- * @options: options from ice_fwlog_cfg->options structure
- * @log_resolution: logging resolution
- */
-static int
-ice_aq_fwlog_set(struct ice_hw *hw, struct ice_fwlog_module_entry *entries,
-		 u16 num_entries, u16 options, u16 log_resolution)
-{
-	struct ice_aqc_fw_log_cfg_resp *fw_modules;
-	struct ice_aqc_fw_log *cmd;
-	struct libie_aq_desc desc;
-	int status;
-	int i;
-
-	fw_modules = kcalloc(num_entries, sizeof(*fw_modules), GFP_KERNEL);
-	if (!fw_modules)
-		return -ENOMEM;
-
-	for (i = 0; i < num_entries; i++) {
-		fw_modules[i].module_identifier =
-			cpu_to_le16(entries[i].module_id);
-		fw_modules[i].log_level = entries[i].log_level;
-	}
-
-	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_fw_logs_config);
-	desc.flags |= cpu_to_le16(LIBIE_AQ_FLAG_RD);
-
-	cmd = libie_aq_raw(&desc);
-
-	cmd->cmd_flags = ICE_AQC_FW_LOG_CONF_SET_VALID;
-	cmd->ops.cfg.log_resolution = cpu_to_le16(log_resolution);
-	cmd->ops.cfg.mdl_cnt = cpu_to_le16(num_entries);
-
-	if (options & ICE_FWLOG_OPTION_ARQ_ENA)
-		cmd->cmd_flags |= ICE_AQC_FW_LOG_CONF_AQ_EN;
-	if (options & ICE_FWLOG_OPTION_UART_ENA)
-		cmd->cmd_flags |= ICE_AQC_FW_LOG_CONF_UART_EN;
-
-	status = ice_aq_send_cmd(hw, &desc, fw_modules,
-				 sizeof(*fw_modules) * num_entries,
-				 NULL);
-
-	kfree(fw_modules);
-
-	return status;
-}
-
-/**
- * ice_fwlog_set - Set the firmware logging settings
- * @hw: pointer to the HW structure
- * @cfg: config used to set firmware logging
- *
- * This function should be called whenever the driver needs to set the firmware
- * logging configuration. It can be called on initialization, reset, or during
- * runtime.
- *
- * If the PF wishes to receive FW logging then it must register via
- * ice_fwlog_register. Note, that ice_fwlog_register does not need to be called
- * for init.
- */
-int ice_fwlog_set(struct ice_hw *hw, struct ice_fwlog_cfg *cfg)
-{
-	if (!ice_fwlog_supported(hw))
-		return -EOPNOTSUPP;
-
-	return ice_aq_fwlog_set(hw, cfg->module_entries,
-				ICE_AQC_FW_LOG_ID_MAX, cfg->options,
-				cfg->log_resolution);
-}
-
-/**
- * ice_aq_fwlog_get - Get the current firmware logging configuration (0xFF32)
- * @hw: pointer to the HW structure
- * @cfg: firmware logging configuration to populate
- */
-static int ice_aq_fwlog_get(struct ice_hw *hw, struct ice_fwlog_cfg *cfg)
-{
-	struct ice_aqc_fw_log_cfg_resp *fw_modules;
-	struct ice_aqc_fw_log *cmd;
-	struct libie_aq_desc desc;
-	u16 module_id_cnt;
-	int status;
-	void *buf;
-	int i;
-
-	memset(cfg, 0, sizeof(*cfg));
-
-	buf = kzalloc(ICE_AQ_MAX_BUF_LEN, GFP_KERNEL);
-	if (!buf)
-		return -ENOMEM;
-
-	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_fw_logs_query);
-	cmd = libie_aq_raw(&desc);
-
-	cmd->cmd_flags = ICE_AQC_FW_LOG_AQ_QUERY;
-
-	status = ice_aq_send_cmd(hw, &desc, buf, ICE_AQ_MAX_BUF_LEN, NULL);
-	if (status) {
-		ice_debug(hw, ICE_DBG_FW_LOG, "Failed to get FW log configuration\n");
-		goto status_out;
-	}
-
-	module_id_cnt = le16_to_cpu(cmd->ops.cfg.mdl_cnt);
-	if (module_id_cnt < ICE_AQC_FW_LOG_ID_MAX) {
-		ice_debug(hw, ICE_DBG_FW_LOG, "FW returned less than the expected number of FW log module IDs\n");
-	} else if (module_id_cnt > ICE_AQC_FW_LOG_ID_MAX) {
-		ice_debug(hw, ICE_DBG_FW_LOG, "FW returned more than expected number of FW log module IDs, setting module_id_cnt to software expected max %u\n",
-			  ICE_AQC_FW_LOG_ID_MAX);
-		module_id_cnt = ICE_AQC_FW_LOG_ID_MAX;
-	}
-
-	cfg->log_resolution = le16_to_cpu(cmd->ops.cfg.log_resolution);
-	if (cmd->cmd_flags & ICE_AQC_FW_LOG_CONF_AQ_EN)
-		cfg->options |= ICE_FWLOG_OPTION_ARQ_ENA;
-	if (cmd->cmd_flags & ICE_AQC_FW_LOG_CONF_UART_EN)
-		cfg->options |= ICE_FWLOG_OPTION_UART_ENA;
-	if (cmd->cmd_flags & ICE_AQC_FW_LOG_QUERY_REGISTERED)
-		cfg->options |= ICE_FWLOG_OPTION_IS_REGISTERED;
-
-	fw_modules = (struct ice_aqc_fw_log_cfg_resp *)buf;
-
-	for (i = 0; i < module_id_cnt; i++) {
-		struct ice_aqc_fw_log_cfg_resp *fw_module = &fw_modules[i];
-
-		cfg->module_entries[i].module_id =
-			le16_to_cpu(fw_module->module_identifier);
-		cfg->module_entries[i].log_level = fw_module->log_level;
-	}
-
-status_out:
-	kfree(buf);
-	return status;
-}
-
-/**
- * ice_fwlog_get - Get the firmware logging settings
- * @hw: pointer to the HW structure
- * @cfg: config to populate based on current firmware logging settings
- */
-int ice_fwlog_get(struct ice_hw *hw, struct ice_fwlog_cfg *cfg)
-{
-	if (!ice_fwlog_supported(hw))
-		return -EOPNOTSUPP;
-
-	return ice_aq_fwlog_get(hw, cfg);
-}
-
-/**
- * ice_aq_fwlog_register - Register PF for firmware logging events (0xFF31)
- * @hw: pointer to the HW structure
- * @reg: true to register and false to unregister
- */
-static int ice_aq_fwlog_register(struct ice_hw *hw, bool reg)
-{
-	struct ice_aqc_fw_log *cmd;
-	struct libie_aq_desc desc;
-
-	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_fw_logs_register);
-	cmd = libie_aq_raw(&desc);
-
-	if (reg)
-		cmd->cmd_flags = ICE_AQC_FW_LOG_AQ_REGISTER;
-
-	return ice_aq_send_cmd(hw, &desc, NULL, 0, NULL);
-}
-
-/**
- * ice_fwlog_register - Register the PF for firmware logging
- * @hw: pointer to the HW structure
- *
- * After this call the PF will start to receive firmware logging based on the
- * configuration set in ice_fwlog_set.
- */
-int ice_fwlog_register(struct ice_hw *hw)
-{
-	int status;
-
-	if (!ice_fwlog_supported(hw))
-		return -EOPNOTSUPP;
-
-	status = ice_aq_fwlog_register(hw, true);
-	if (status)
-		ice_debug(hw, ICE_DBG_FW_LOG, "Failed to register for firmware logging events over ARQ\n");
-	else
-		hw->fwlog_cfg.options |= ICE_FWLOG_OPTION_IS_REGISTERED;
-
-	return status;
-}
-
-/**
- * ice_fwlog_unregister - Unregister the PF from firmware logging
- * @hw: pointer to the HW structure
- */
-int ice_fwlog_unregister(struct ice_hw *hw)
-{
-	int status;
-
-	if (!ice_fwlog_supported(hw))
-		return -EOPNOTSUPP;
-
-	status = ice_aq_fwlog_register(hw, false);
-	if (status)
-		ice_debug(hw, ICE_DBG_FW_LOG, "Failed to unregister from firmware logging events over ARQ\n");
-	else
-		hw->fwlog_cfg.options &= ~ICE_FWLOG_OPTION_IS_REGISTERED;
-
-	return status;
-}
-
-/**
- * ice_fwlog_set_supported - Set if FW logging is supported by FW
- * @hw: pointer to the HW struct
- *
- * If FW returns success to the ice_aq_fwlog_get call then it supports FW
- * logging, else it doesn't. Set the fwlog_supported flag accordingly.
- *
- * This function is only meant to be called during driver init to determine if
- * the FW support FW logging.
- */
-void ice_fwlog_set_supported(struct ice_hw *hw)
-{
-	struct ice_fwlog_cfg *cfg;
-	int status;
-
-	hw->fwlog_supported = false;
-
-	cfg = kzalloc(sizeof(*cfg), GFP_KERNEL);
-	if (!cfg)
-		return;
-
-	/* don't call ice_fwlog_get() because that would check to see if FW
-	 * logging is supported which is what the driver is determining now
-	 */
-	status = ice_aq_fwlog_get(hw, cfg);
-	if (status)
-		ice_debug(hw, ICE_DBG_FW_LOG, "ice_aq_fwlog_get failed, FW logging is not supported on this version of FW, status %d\n",
-			  status);
-	else
-		hw->fwlog_supported = true;
-
-	kfree(cfg);
-}