From patchwork Fri Jun 5 05:21:43 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wenzhuo Lu X-Patchwork-Id: 5167 Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [IPv6:::1]) by dpdk.org (Postfix) with ESMTP id CBB67C36E; Fri, 5 Jun 2015 07:22:33 +0200 (CEST) Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by dpdk.org (Postfix) with ESMTP id 567015A06 for ; Fri, 5 Jun 2015 07:22:30 +0200 (CEST) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga103.jf.intel.com with ESMTP; 04 Jun 2015 22:22:30 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.13,556,1427785200"; d="scan'208";a="705714604" Received: from shvmail01.sh.intel.com ([10.239.29.42]) by orsmga001.jf.intel.com with ESMTP; 04 Jun 2015 22:22:31 -0700 Received: from shecgisg004.sh.intel.com (shecgisg004.sh.intel.com [10.239.29.89]) by shvmail01.sh.intel.com with ESMTP id t555MRvp032607; Fri, 5 Jun 2015 13:22:27 +0800 Received: from shecgisg004.sh.intel.com (localhost [127.0.0.1]) by shecgisg004.sh.intel.com (8.13.6/8.13.6/SuSE Linux 0.8) with ESMTP id t555MPTv024365; Fri, 5 Jun 2015 13:22:27 +0800 Received: (from wenzhuol@localhost) by shecgisg004.sh.intel.com (8.13.6/8.13.6/Submit) id t555MPNl024361; Fri, 5 Jun 2015 13:22:25 +0800 From: Wenzhuo Lu To: dev@dpdk.org Date: Fri, 5 Jun 2015 13:21:43 +0800 Message-Id: <1433481718-24253-12-git-send-email-wenzhuo.lu@intel.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1433481718-24253-1-git-send-email-wenzhuo.lu@intel.com> References: <1433481718-24253-1-git-send-email-wenzhuo.lu@intel.com> Subject: [dpdk-dev] [PATCH 11/26] ixgbe/base: restore ESDP settings after MAC reset X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" The I2C mux control relies on the SDP setting in the ESDP register so it is necessary to restore the value after a MAC reset. So, put the code in a function so it can be used in more than one place. Signed-off-by: Wenzhuo Lu --- drivers/net/ixgbe/base/ixgbe_x550.c | 41 ++++++++++++++++++++----------------- 1 file changed, 22 insertions(+), 19 deletions(-) diff --git a/drivers/net/ixgbe/base/ixgbe_x550.c b/drivers/net/ixgbe/base/ixgbe_x550.c index c91e737..319aa0d 100644 --- a/drivers/net/ixgbe/base/ixgbe_x550.c +++ b/drivers/net/ixgbe/base/ixgbe_x550.c @@ -264,6 +264,23 @@ STATIC void ixgbe_check_cs4227(struct ixgbe_hw *hw) } /** + * ixgbe_setup_mux_ctl - Setup ESDP register for I2C mux control + * @hw: pointer to hardware structure + **/ +STATIC void ixgbe_setup_mux_ctl(struct ixgbe_hw *hw) +{ + u32 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); + + if (hw->bus.lan_id) { + esdp &= ~(IXGBE_ESDP_SDP1_NATIVE | IXGBE_ESDP_SDP1); + esdp |= IXGBE_ESDP_SDP1_DIR; + } + esdp &= ~(IXGBE_ESDP_SDP0_NATIVE | IXGBE_ESDP_SDP0_DIR); + IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp); + IXGBE_WRITE_FLUSH(hw); +} + +/** * ixgbe_identify_phy_x550em - Get PHY type based on device id * @hw: pointer to hardware structure * @@ -271,20 +288,11 @@ STATIC void ixgbe_check_cs4227(struct ixgbe_hw *hw) */ STATIC s32 ixgbe_identify_phy_x550em(struct ixgbe_hw *hw) { - u32 esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); - switch (hw->device_id) { case IXGBE_DEV_ID_X550EM_X_SFP: /* set up for CS4227 usage */ hw->phy.phy_semaphore_mask = IXGBE_GSSR_SHARED_I2C_SM; - if (hw->bus.lan_id) { - - esdp &= ~(IXGBE_ESDP_SDP1_NATIVE | IXGBE_ESDP_SDP1); - esdp |= IXGBE_ESDP_SDP1_DIR; - } - esdp &= ~(IXGBE_ESDP_SDP0_NATIVE | IXGBE_ESDP_SDP0_DIR); - IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp); - + ixgbe_setup_mux_ctl(hw); ixgbe_check_cs4227(hw); return ixgbe_identify_module_generic(hw); @@ -1099,20 +1107,12 @@ s32 ixgbe_init_phy_ops_X550em(struct ixgbe_hw *hw) { struct ixgbe_phy_info *phy = &hw->phy; s32 ret_val; - u32 esdp; DEBUGFUNC("ixgbe_init_phy_ops_X550em"); if (hw->device_id == IXGBE_DEV_ID_X550EM_X_SFP) { - esdp = IXGBE_READ_REG(hw, IXGBE_ESDP); phy->phy_semaphore_mask = IXGBE_GSSR_SHARED_I2C_SM; - - if (hw->bus.lan_id) { - esdp &= ~(IXGBE_ESDP_SDP1_NATIVE | IXGBE_ESDP_SDP1); - esdp |= IXGBE_ESDP_SDP1_DIR; - } - esdp &= ~(IXGBE_ESDP_SDP0_NATIVE | IXGBE_ESDP_SDP0_DIR); - IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp); + ixgbe_setup_mux_ctl(hw); } /* Identify the PHY or SFP module */ @@ -1269,6 +1269,9 @@ mac_reset_top: hw->mac.ops.init_rx_addrs(hw); + if (hw->device_id == IXGBE_DEV_ID_X550EM_X_SFP) + ixgbe_setup_mux_ctl(hw); + return status; }