From patchwork Fri May 3 23:09:34 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Kirsher, Jeffrey T" X-Patchwork-Id: 1095079 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=intel.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 44wnsD6Gd1z9s4V for ; Sat, 4 May 2019 09:09:52 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727201AbfECXJv (ORCPT ); Fri, 3 May 2019 19:09:51 -0400 Received: from mga11.intel.com ([192.55.52.93]:40730 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726149AbfECXJm (ORCPT ); Fri, 3 May 2019 19:09:42 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 03 May 2019 16:09:41 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,427,1549958400"; d="scan'208";a="136660088" Received: from jtkirshe-desk1.jf.intel.com ([134.134.177.96]) by orsmga007.jf.intel.com with ESMTP; 03 May 2019 16:09:40 -0700 From: Jeff Kirsher To: davem@davemloft.net Cc: Aleksandr Loktionov , netdev@vger.kernel.org, nhorman@redhat.com, sassmann@redhat.com, Andrew Bowers , Jeff Kirsher Subject: [net-next v2 06/11] i40e: Further implementation of LLDP Date: Fri, 3 May 2019 16:09:34 -0700 Message-Id: <20190503230939.6739-7-jeffrey.t.kirsher@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190503230939.6739-1-jeffrey.t.kirsher@intel.com> References: <20190503230939.6739-1-jeffrey.t.kirsher@intel.com> MIME-Version: 1.0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Aleksandr Loktionov This code implements driver code changes necessary for LLDP Agent support. Modified i40e_aq_start_lldp() and i40e_aq_stop_lldp() adding false parameter whether LLDP state should be persistent across power cycles. Signed-off-by: Aleksandr Loktionov Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/i40e/i40e_adminq.c | 5 ++ .../net/ethernet/intel/i40e/i40e_adminq_cmd.h | 20 ++++-- drivers/net/ethernet/intel/i40e/i40e_common.c | 62 ++++++++++++++++++- .../net/ethernet/intel/i40e/i40e_debugfs.c | 4 +- .../net/ethernet/intel/i40e/i40e_ethtool.c | 4 +- drivers/net/ethernet/intel/i40e/i40e_main.c | 2 +- .../net/ethernet/intel/i40e/i40e_prototype.h | 8 ++- drivers/net/ethernet/intel/i40e/i40e_type.h | 1 + 8 files changed, 93 insertions(+), 13 deletions(-) diff --git a/drivers/net/ethernet/intel/i40e/i40e_adminq.c b/drivers/net/ethernet/intel/i40e/i40e_adminq.c index 45f6adc8ff2f..243dcd4bec19 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_adminq.c +++ b/drivers/net/ethernet/intel/i40e/i40e_adminq.c @@ -608,6 +608,11 @@ i40e_status i40e_init_adminq(struct i40e_hw *hw) hw->aq.api_min_ver >= 7)) hw->flags |= I40E_HW_FLAG_802_1AD_CAPABLE; + if (hw->aq.api_maj_ver > 1 || + (hw->aq.api_maj_ver == 1 && + hw->aq.api_min_ver >= 8)) + hw->flags |= I40E_HW_FLAG_FW_LLDP_PERSISTENT; + if (hw->aq.api_maj_ver > I40E_FW_API_VERSION_MAJOR) { ret_code = I40E_ERR_FIRMWARE_API_VERSION; goto init_adminq_free_arq; diff --git a/drivers/net/ethernet/intel/i40e/i40e_adminq_cmd.h b/drivers/net/ethernet/intel/i40e/i40e_adminq_cmd.h index 522058a7d4be..abcf79eb3261 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_adminq_cmd.h +++ b/drivers/net/ethernet/intel/i40e/i40e_adminq_cmd.h @@ -261,6 +261,7 @@ enum i40e_admin_queue_opc { i40e_aqc_opc_get_cee_dcb_cfg = 0x0A07, i40e_aqc_opc_lldp_set_local_mib = 0x0A08, i40e_aqc_opc_lldp_stop_start_spec_agent = 0x0A09, + i40e_aqc_opc_lldp_restore = 0x0A0A, /* Tunnel commands */ i40e_aqc_opc_add_udp_tunnel = 0x0B00, @@ -2498,18 +2499,19 @@ I40E_CHECK_CMD_LENGTH(i40e_aqc_lldp_update_tlv); /* Stop LLDP (direct 0x0A05) */ struct i40e_aqc_lldp_stop { u8 command; -#define I40E_AQ_LLDP_AGENT_STOP 0x0 -#define I40E_AQ_LLDP_AGENT_SHUTDOWN 0x1 +#define I40E_AQ_LLDP_AGENT_STOP 0x0 +#define I40E_AQ_LLDP_AGENT_SHUTDOWN 0x1 +#define I40E_AQ_LLDP_AGENT_STOP_PERSIST 0x2 u8 reserved[15]; }; I40E_CHECK_CMD_LENGTH(i40e_aqc_lldp_stop); /* Start LLDP (direct 0x0A06) */ - struct i40e_aqc_lldp_start { u8 command; -#define I40E_AQ_LLDP_AGENT_START 0x1 +#define I40E_AQ_LLDP_AGENT_START 0x1 +#define I40E_AQ_LLDP_AGENT_START_PERSIST 0x2 u8 reserved[15]; }; @@ -2633,6 +2635,16 @@ struct i40e_aqc_lldp_stop_start_specific_agent { I40E_CHECK_CMD_LENGTH(i40e_aqc_lldp_stop_start_specific_agent); +/* Restore LLDP Agent factory settings (direct 0x0A0A) */ +struct i40e_aqc_lldp_restore { + u8 command; +#define I40E_AQ_LLDP_AGENT_RESTORE_NOT 0x0 +#define I40E_AQ_LLDP_AGENT_RESTORE 0x1 + u8 reserved[15]; +}; + +I40E_CHECK_CMD_LENGTH(i40e_aqc_lldp_restore); + /* Add Udp Tunnel command and completion (direct 0x0B00) */ struct i40e_aqc_add_udp_tunnel { __le16 udp_port; diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c index dd6b3b3ac5c6..e7d500f92a90 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_common.c +++ b/drivers/net/ethernet/intel/i40e/i40e_common.c @@ -3623,15 +3623,55 @@ i40e_status i40e_aq_cfg_lldp_mib_change_event(struct i40e_hw *hw, return status; } +/** + * i40e_aq_restore_lldp + * @hw: pointer to the hw struct + * @setting: pointer to factory setting variable or NULL + * @restore: True if factory settings should be restored + * @cmd_details: pointer to command details structure or NULL + * + * Restore LLDP Agent factory settings if @restore set to True. In other case + * only returns factory setting in AQ response. + **/ +enum i40e_status_code +i40e_aq_restore_lldp(struct i40e_hw *hw, u8 *setting, bool restore, + struct i40e_asq_cmd_details *cmd_details) +{ + struct i40e_aq_desc desc; + struct i40e_aqc_lldp_restore *cmd = + (struct i40e_aqc_lldp_restore *)&desc.params.raw; + i40e_status status; + + if (!(hw->flags & I40E_HW_FLAG_FW_LLDP_PERSISTENT)) { + i40e_debug(hw, I40E_DEBUG_ALL, + "Restore LLDP not supported by current FW version.\n"); + return I40E_ERR_DEVICE_NOT_SUPPORTED; + } + + i40e_fill_default_direct_cmd_desc(&desc, i40e_aqc_opc_lldp_restore); + + if (restore) + cmd->command |= I40E_AQ_LLDP_AGENT_RESTORE; + + status = i40e_asq_send_command(hw, &desc, NULL, 0, cmd_details); + + if (setting) + *setting = cmd->command & 1; + + return status; +} + /** * i40e_aq_stop_lldp * @hw: pointer to the hw struct * @shutdown_agent: True if LLDP Agent needs to be Shutdown + * @persist: True if stop of LLDP should be persistent across power cycles * @cmd_details: pointer to command details structure or NULL * * Stop or Shutdown the embedded LLDP Agent **/ i40e_status i40e_aq_stop_lldp(struct i40e_hw *hw, bool shutdown_agent, + bool persist, struct i40e_asq_cmd_details *cmd_details) { struct i40e_aq_desc desc; @@ -3644,6 +3684,14 @@ i40e_status i40e_aq_stop_lldp(struct i40e_hw *hw, bool shutdown_agent, if (shutdown_agent) cmd->command |= I40E_AQ_LLDP_AGENT_SHUTDOWN; + if (persist) { + if (hw->flags & I40E_HW_FLAG_FW_LLDP_PERSISTENT) + cmd->command |= I40E_AQ_LLDP_AGENT_STOP_PERSIST; + else + i40e_debug(hw, I40E_DEBUG_ALL, + "Persistent Stop LLDP not supported by current FW version.\n"); + } + status = i40e_asq_send_command(hw, &desc, NULL, 0, cmd_details); return status; @@ -3653,13 +3701,14 @@ i40e_status i40e_aq_stop_lldp(struct i40e_hw *hw, bool shutdown_agent, * i40e_aq_start_lldp * @hw: pointer to the hw struct * @buff: buffer for result + * @persist: True if start of LLDP should be persistent across power cycles * @buff_size: buffer size * @cmd_details: pointer to command details structure or NULL * * Start the embedded LLDP Agent on all ports. **/ -i40e_status i40e_aq_start_lldp(struct i40e_hw *hw, - struct i40e_asq_cmd_details *cmd_details) +i40e_status i40e_aq_start_lldp(struct i40e_hw *hw, bool persist, + struct i40e_asq_cmd_details *cmd_details) { struct i40e_aq_desc desc; struct i40e_aqc_lldp_start *cmd = @@ -3669,6 +3718,15 @@ i40e_status i40e_aq_start_lldp(struct i40e_hw *hw, i40e_fill_default_direct_cmd_desc(&desc, i40e_aqc_opc_lldp_start); cmd->command = I40E_AQ_LLDP_AGENT_START; + + if (persist) { + if (hw->flags & I40E_HW_FLAG_FW_LLDP_PERSISTENT) + cmd->command |= I40E_AQ_LLDP_AGENT_START_PERSIST; + else + i40e_debug(hw, I40E_DEBUG_ALL, + "Persistent Start LLDP not supported by current FW version.\n"); + } + status = i40e_asq_send_command(hw, &desc, NULL, 0, cmd_details); return status; diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c index c67d485d6f99..7ea4f09229e4 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c +++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c @@ -1321,7 +1321,7 @@ static ssize_t i40e_dbg_command_write(struct file *filp, if (strncmp(&cmd_buf[5], "stop", 4) == 0) { int ret; - ret = i40e_aq_stop_lldp(&pf->hw, false, NULL); + ret = i40e_aq_stop_lldp(&pf->hw, false, false, NULL); if (ret) { dev_info(&pf->pdev->dev, "Stop LLDP AQ command failed =0x%x\n", @@ -1358,7 +1358,7 @@ static ssize_t i40e_dbg_command_write(struct file *filp, /* Continue and start FW LLDP anyways */ } - ret = i40e_aq_start_lldp(&pf->hw, NULL); + ret = i40e_aq_start_lldp(&pf->hw, false, NULL); if (ret) { dev_info(&pf->pdev->dev, "Start LLDP AQ command failed =0x%x\n", diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c index 0d923c13c9a1..32e137499063 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c +++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c @@ -4958,7 +4958,7 @@ static int i40e_set_priv_flags(struct net_device *dev, u32 flags) if (pf->flags & I40E_FLAG_DISABLE_FW_LLDP) { struct i40e_dcbx_config *dcbcfg; - i40e_aq_stop_lldp(&pf->hw, true, NULL); + i40e_aq_stop_lldp(&pf->hw, true, false, NULL); i40e_aq_set_dcb_parameters(&pf->hw, true, NULL); /* reset local_dcbx_config to default */ dcbcfg = &pf->hw.local_dcbx_config; @@ -4973,7 +4973,7 @@ static int i40e_set_priv_flags(struct net_device *dev, u32 flags) dcbcfg->pfc.willing = 1; dcbcfg->pfc.pfccap = I40E_MAX_TRAFFIC_CLASS; } else { - i40e_aq_start_lldp(&pf->hw, NULL); + i40e_aq_start_lldp(&pf->hw, false, NULL); } } diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 3e15df1d5f52..54c172c50479 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -14132,7 +14132,7 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent) */ if (pf->hw_features & I40E_HW_STOP_FW_LLDP) { dev_info(&pdev->dev, "Stopping firmware LLDP agent.\n"); - i40e_aq_stop_lldp(hw, true, NULL); + i40e_aq_stop_lldp(hw, true, false, NULL); } /* allow a platform config to override the HW addr */ diff --git a/drivers/net/ethernet/intel/i40e/i40e_prototype.h b/drivers/net/ethernet/intel/i40e/i40e_prototype.h index 663c8bf4d3d8..882627073dce 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_prototype.h +++ b/drivers/net/ethernet/intel/i40e/i40e_prototype.h @@ -203,14 +203,18 @@ i40e_status i40e_aq_get_lldp_mib(struct i40e_hw *hw, u8 bridge_type, i40e_status i40e_aq_cfg_lldp_mib_change_event(struct i40e_hw *hw, bool enable_update, struct i40e_asq_cmd_details *cmd_details); +enum i40e_status_code +i40e_aq_restore_lldp(struct i40e_hw *hw, u8 *setting, bool restore, + struct i40e_asq_cmd_details *cmd_details); i40e_status i40e_aq_stop_lldp(struct i40e_hw *hw, bool shutdown_agent, + bool persist, struct i40e_asq_cmd_details *cmd_details); i40e_status i40e_aq_set_dcb_parameters(struct i40e_hw *hw, bool dcb_enable, struct i40e_asq_cmd_details *cmd_details); -i40e_status i40e_aq_start_lldp(struct i40e_hw *hw, - struct i40e_asq_cmd_details *cmd_details); +i40e_status i40e_aq_start_lldp(struct i40e_hw *hw, bool persist, + struct i40e_asq_cmd_details *cmd_details); i40e_status i40e_aq_get_cee_dcb_config(struct i40e_hw *hw, void *buff, u16 buff_size, struct i40e_asq_cmd_details *cmd_details); diff --git a/drivers/net/ethernet/intel/i40e/i40e_type.h b/drivers/net/ethernet/intel/i40e/i40e_type.h index 79420bcc7414..820af0043cc8 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_type.h +++ b/drivers/net/ethernet/intel/i40e/i40e_type.h @@ -616,6 +616,7 @@ struct i40e_hw { #define I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE BIT_ULL(2) #define I40E_HW_FLAG_NVM_READ_REQUIRES_LOCK BIT_ULL(3) #define I40E_HW_FLAG_FW_LLDP_STOPPABLE BIT_ULL(4) +#define I40E_HW_FLAG_FW_LLDP_PERSISTENT BIT_ULL(5) u64 flags; /* Used in set switch config AQ command */