From patchwork Fri May 11 17:35:24 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Xing, Beilei" X-Patchwork-Id: 39815 Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 7D2E11C107; Fri, 11 May 2018 06:52:53 +0200 (CEST) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by dpdk.org (Postfix) with ESMTP id 081A81C105; Fri, 11 May 2018 06:52:50 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 10 May 2018 21:52:49 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.49,387,1520924400"; d="scan'208";a="38465945" Received: from unknown (HELO dpdk9.sh.intel.com) ([10.67.118.52]) by fmsmga007.fm.intel.com with ESMTP; 10 May 2018 21:52:48 -0700 From: Beilei Xing To: jingjing.wu@intel.com, qi.z.zhang@intel.com Cc: dev@dpdk.org, stable@dpdk.org Date: Sat, 12 May 2018 01:35:24 +0800 Message-Id: <1526060124-85580-1-git-send-email-beilei.xing@intel.com> X-Mailer: git-send-email 2.5.5 Subject: [dpdk-dev] [PATCH] net/i40e: print original value for global register change X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Currently, only new value is printed during global register change. Add original value to help debugging facility. Fixes: bc66b9717c50 ("net/i40e: add debug logs when writing global registers") Cc: stable@dpdk.org Signed-off-by: Beilei Xing --- drivers/net/i40e/i40e_ethdev.c | 42 +++++++++++++++++++++++++++++++++++------- drivers/net/i40e/i40e_ethdev.h | 8 +++++--- 2 files changed, 40 insertions(+), 10 deletions(-) diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c index 894505f..1dbd8f7 100644 --- a/drivers/net/i40e/i40e_ethdev.c +++ b/drivers/net/i40e/i40e_ethdev.c @@ -1156,6 +1156,30 @@ i40e_support_multi_driver(struct rte_eth_dev *dev) } static int +i40e_aq_debug_write_global_register(struct i40e_hw *hw, + uint32_t reg_addr, uint64_t reg_val, + struct i40e_asq_cmd_details *cmd_details) +{ + uint64_t ori_reg_val; + int ret; + + ret = i40e_aq_debug_read_register(hw, reg_addr, &ori_reg_val, NULL); + if (ret != I40E_SUCCESS) { + PMD_DRV_LOG(ERR, + "Fail to debug read from 0x%08x", + reg_addr); + return -EIO; + } + + PMD_DRV_LOG(DEBUG, + "Global register [0x%08x] original: 0x%"PRIx64 + ", after: 0x%"PRIx64, + reg_addr, ori_reg_val, reg_val); + + return i40e_aq_debug_write_register(hw, reg_addr, reg_val, cmd_details); +} + +static int eth_i40e_dev_init(struct rte_eth_dev *dev, void *init_params __rte_unused) { struct rte_pci_device *pci_dev; @@ -1262,7 +1286,8 @@ eth_i40e_dev_init(struct rte_eth_dev *dev, void *init_params __rte_unused) /* initialise the L3_MAP register */ if (!pf->support_multi_driver) { - ret = i40e_aq_debug_write_register(hw, I40E_GLQF_L3_MAP(40), + ret = i40e_aq_debug_write_global_register(hw, + I40E_GLQF_L3_MAP(40), 0x00000028, NULL); if (ret) PMD_INIT_LOG(ERR, "Failed to write L3 MAP register %d", @@ -3459,7 +3484,8 @@ i40e_vlan_tpid_set_by_registers(struct rte_eth_dev *dev, return 0; } - ret = i40e_aq_debug_write_register(hw, I40E_GL_SWT_L2TAGCTRL(reg_id), + ret = i40e_aq_debug_write_global_register(hw, + I40E_GL_SWT_L2TAGCTRL(reg_id), reg_w, NULL); if (ret != I40E_SUCCESS) { PMD_DRV_LOG(ERR, @@ -3471,6 +3497,8 @@ i40e_vlan_tpid_set_by_registers(struct rte_eth_dev *dev, "Global register 0x%08x is changed with value 0x%08x", I40E_GL_SWT_L2TAGCTRL(reg_id), (uint32_t)reg_w); + i40e_global_cfg_warning(I40E_WARNING_TPID); + return 0; } @@ -3520,7 +3548,6 @@ i40e_vlan_tpid_set(struct rte_eth_dev *dev, /* If NVM API < 1.7, keep the register setting */ ret = i40e_vlan_tpid_set_by_registers(dev, vlan_type, tpid, qinq); - i40e_global_cfg_warning(I40E_WARNING_TPID); return ret; } @@ -8356,7 +8383,8 @@ i40e_dev_set_gre_key_len(struct i40e_hw *hw, uint8_t len) } if (reg != val) { - ret = i40e_aq_debug_write_register(hw, I40E_GL_PRS_FVBM(2), + ret = i40e_aq_debug_write_global_register(hw, + I40E_GL_PRS_FVBM(2), reg, NULL); if (ret != 0) return ret; @@ -9249,11 +9277,11 @@ i40e_check_write_global_reg(struct i40e_hw *hw, uint32_t addr, uint32_t val) { uint32_t reg = i40e_read_rx_ctl(hw, addr); - PMD_DRV_LOG(DEBUG, "[0x%08x] original: 0x%08x", addr, reg); if (reg != val) i40e_write_global_rx_ctl(hw, addr, val); - PMD_DRV_LOG(DEBUG, "[0x%08x] after: 0x%08x", addr, - (uint32_t)i40e_read_rx_ctl(hw, addr)); + PMD_DRV_LOG(DEBUG, + "global register [0x%08x] original: 0x%08x, after: 0x%08x", + addr, reg, (uint32_t)i40e_read_rx_ctl(hw, addr)); } static void diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h index 4dd50eb..55c8875 100644 --- a/drivers/net/i40e/i40e_ethdev.h +++ b/drivers/net/i40e/i40e_ethdev.h @@ -86,11 +86,13 @@ #define I40E_WRITE_GLB_REG(hw, reg, value) \ do { \ + uint32_t ori_val; \ + ori_val = I40E_READ_REG((hw), (reg)); \ I40E_PCI_REG_WRITE(I40E_PCI_REG_ADDR((hw), \ (reg)), (value)); \ - PMD_DRV_LOG(DEBUG, "Global register 0x%08x is modified " \ - "with value 0x%08x", \ - (reg), (value)); \ + PMD_DRV_LOG(DEBUG, "global register [0x%08x] " \ + "original: 0x%08x, after: 0x%08x ", \ + (reg), (ori_val), (value)); \ } while (0) /* index flex payload per layer */