ice: remove FW logging code

The FW logging code doesn't work because there is no way to set
cq_ena or uart_ena so remove the code. This code is the original
(v1) way of FW logging so it should be replaced with the v2 way.

Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

1 files changed, 0 insertions, 217 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c
index 8d97434e1413..6e4a0837f6d5 100644
--- a/drivers/net/ethernet/intel/ice/ice_common.c
+++ b/drivers/net/ethernet/intel/ice/ice_common.c
@@ -934,216 +934,6 @@ static void ice_cleanup_fltr_mgmt_struct(struct ice_hw *hw)
 }
 
 /**
- * ice_get_fw_log_cfg - get FW logging configuration
- * @hw: pointer to the HW struct
- */
-static int ice_get_fw_log_cfg(struct ice_hw *hw)
-{
-	struct ice_aq_desc desc;
-	__le16 *config;
-	int status;
-	u16 size;
-
-	size = sizeof(*config) * ICE_AQC_FW_LOG_ID_MAX;
-	config = kzalloc(size, GFP_KERNEL);
-	if (!config)
-		return -ENOMEM;
-
-	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_fw_logging_info);
-
-	status = ice_aq_send_cmd(hw, &desc, config, size, NULL);
-	if (!status) {
-		u16 i;
-
-		/* Save FW logging information into the HW structure */
-		for (i = 0; i < ICE_AQC_FW_LOG_ID_MAX; i++) {
-			u16 v, m, flgs;
-
-			v = le16_to_cpu(config[i]);
-			m = (v & ICE_AQC_FW_LOG_ID_M) >> ICE_AQC_FW_LOG_ID_S;
-			flgs = (v & ICE_AQC_FW_LOG_EN_M) >> ICE_AQC_FW_LOG_EN_S;
-
-			if (m < ICE_AQC_FW_LOG_ID_MAX)
-				hw->fw_log.evnts[m].cur = flgs;
-		}
-	}
-
-	kfree(config);
-
-	return status;
-}
-
-/**
- * ice_cfg_fw_log - configure FW logging
- * @hw: pointer to the HW struct
- * @enable: enable certain FW logging events if true, disable all if false
- *
- * This function enables/disables the FW logging via Rx CQ events and a UART
- * port based on predetermined configurations. FW logging via the Rx CQ can be
- * enabled/disabled for individual PF's. However, FW logging via the UART can
- * only be enabled/disabled for all PFs on the same device.
- *
- * To enable overall FW logging, the "cq_en" and "uart_en" enable bits in
- * hw->fw_log need to be set accordingly, e.g. based on user-provided input,
- * before initializing the device.
- *
- * When re/configuring FW logging, callers need to update the "cfg" elements of
- * the hw->fw_log.evnts array with the desired logging event configurations for
- * modules of interest. When disabling FW logging completely, the callers can
- * just pass false in the "enable" parameter. On completion, the function will
- * update the "cur" element of the hw->fw_log.evnts array with the resulting
- * logging event configurations of the modules that are being re/configured. FW
- * logging modules that are not part of a reconfiguration operation retain their
- * previous states.
- *
- * Before resetting the device, it is recommended that the driver disables FW
- * logging before shutting down the control queue. When disabling FW logging
- * ("enable" = false), the latest configurations of FW logging events stored in
- * hw->fw_log.evnts[] are not overridden to allow them to be reconfigured after
- * a device reset.
- *
- * When enabling FW logging to emit log messages via the Rx CQ during the
- * device's initialization phase, a mechanism alternative to interrupt handlers
- * needs to be used to extract FW log messages from the Rx CQ periodically and
- * to prevent the Rx CQ from being full and stalling other types of control
- * messages from FW to SW. Interrupts are typically disabled during the device's
- * initialization phase.
- */
-static int ice_cfg_fw_log(struct ice_hw *hw, bool enable)
-{
-	struct ice_aqc_fw_logging *cmd;
-	u16 i, chgs = 0, len = 0;
-	struct ice_aq_desc desc;
-	__le16 *data = NULL;
-	u8 actv_evnts = 0;
-	void *buf = NULL;
-	int status = 0;
-
-	if (!hw->fw_log.cq_en && !hw->fw_log.uart_en)
-		return 0;
-
-	/* Disable FW logging only when the control queue is still responsive */
-	if (!enable &&
-	    (!hw->fw_log.actv_evnts || !ice_check_sq_alive(hw, &hw->adminq)))
-		return 0;
-
-	/* Get current FW log settings */
-	status = ice_get_fw_log_cfg(hw);
-	if (status)
-		return status;
-
-	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_fw_logging);
-	cmd = &desc.params.fw_logging;
-
-	/* Indicate which controls are valid */
-	if (hw->fw_log.cq_en)
-		cmd->log_ctrl_valid |= ICE_AQC_FW_LOG_AQ_VALID;
-
-	if (hw->fw_log.uart_en)
-		cmd->log_ctrl_valid |= ICE_AQC_FW_LOG_UART_VALID;
-
-	if (enable) {
-		/* Fill in an array of entries with FW logging modules and
-		 * logging events being reconfigured.
-		 */
-		for (i = 0; i < ICE_AQC_FW_LOG_ID_MAX; i++) {
-			u16 val;
-
-			/* Keep track of enabled event types */
-			actv_evnts |= hw->fw_log.evnts[i].cfg;
-
-			if (hw->fw_log.evnts[i].cfg == hw->fw_log.evnts[i].cur)
-				continue;
-
-			if (!data) {
-				data = devm_kcalloc(ice_hw_to_dev(hw),
-						    ICE_AQC_FW_LOG_ID_MAX,
-						    sizeof(*data),
-						    GFP_KERNEL);
-				if (!data)
-					return -ENOMEM;
-			}
-
-			val = i << ICE_AQC_FW_LOG_ID_S;
-			val |= hw->fw_log.evnts[i].cfg << ICE_AQC_FW_LOG_EN_S;
-			data[chgs++] = cpu_to_le16(val);
-		}
-
-		/* Only enable FW logging if at least one module is specified.
-		 * If FW logging is currently enabled but all modules are not
-		 * enabled to emit log messages, disable FW logging altogether.
-		 */
-		if (actv_evnts) {
-			/* Leave if there is effectively no change */
-			if (!chgs)
-				goto out;
-
-			if (hw->fw_log.cq_en)
-				cmd->log_ctrl |= ICE_AQC_FW_LOG_AQ_EN;
-
-			if (hw->fw_log.uart_en)
-				cmd->log_ctrl |= ICE_AQC_FW_LOG_UART_EN;
-
-			buf = data;
-			len = sizeof(*data) * chgs;
-			desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
-		}
-	}
-
-	status = ice_aq_send_cmd(hw, &desc, buf, len, NULL);
-	if (!status) {
-		/* Update the current configuration to reflect events enabled.
-		 * hw->fw_log.cq_en and hw->fw_log.uart_en indicate if the FW
-		 * logging mode is enabled for the device. They do not reflect
-		 * actual modules being enabled to emit log messages. So, their
-		 * values remain unchanged even when all modules are disabled.
-		 */
-		u16 cnt = enable ? chgs : (u16)ICE_AQC_FW_LOG_ID_MAX;
-
-		hw->fw_log.actv_evnts = actv_evnts;
-		for (i = 0; i < cnt; i++) {
-			u16 v, m;
-
-			if (!enable) {
-				/* When disabling all FW logging events as part
-				 * of device's de-initialization, the original
-				 * configurations are retained, and can be used
-				 * to reconfigure FW logging later if the device
-				 * is re-initialized.
-				 */
-				hw->fw_log.evnts[i].cur = 0;
-				continue;
-			}
-
-			v = le16_to_cpu(data[i]);
-			m = (v & ICE_AQC_FW_LOG_ID_M) >> ICE_AQC_FW_LOG_ID_S;
-			hw->fw_log.evnts[m].cur = hw->fw_log.evnts[m].cfg;
-		}
-	}
-
-out:
-	devm_kfree(ice_hw_to_dev(hw), data);
-
-	return status;
-}
-
-/**
- * ice_output_fw_log
- * @hw: pointer to the HW struct
- * @desc: pointer to the AQ message descriptor
- * @buf: pointer to the buffer accompanying the AQ message
- *
- * Formats a FW Log message and outputs it via the standard driver logs.
- */
-void ice_output_fw_log(struct ice_hw *hw, struct ice_aq_desc *desc, void *buf)
-{
-	ice_debug(hw, ICE_DBG_FW_LOG, "[ FW Log Msg Start ]\n");
-	ice_debug_array(hw, ICE_DBG_FW_LOG, 16, 1, (u8 *)buf,
-			le16_to_cpu(desc->datalen));
-	ice_debug(hw, ICE_DBG_FW_LOG, "[ FW Log Msg End ]\n");
-}
-
-/**
  * ice_get_itr_intrl_gran
  * @hw: pointer to the HW struct
  *
@@ -1200,11 +990,6 @@ int ice_init_hw(struct ice_hw *hw)
 	if (status)
 		goto err_unroll_cqinit;
 
-	/* Enable FW logging. Not fatal if this fails. */
-	status = ice_cfg_fw_log(hw, true);
-	if (status)
-		ice_debug(hw, ICE_DBG_INIT, "Failed to enable FW logging.\n");
-
 	status = ice_clear_pf_cfg(hw);
 	if (status)
 		goto err_unroll_cqinit;
@@ -1354,8 +1139,6 @@ void ice_deinit_hw(struct ice_hw *hw)
 	ice_free_hw_tbls(hw);
 	mutex_destroy(&hw->tnl_lock);
 
-	/* Attempt to disable FW logging before shutting down control queues */
-	ice_cfg_fw_log(hw, false);
 	ice_destroy_all_ctrlq(hw);
 
 	/* Clear VSI contexts if not already cleared */