From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by dpdk.org (Postfix) with ESMTP id 9863F5934 for ; Fri, 2 Dec 2016 09:21:25 +0100 (CET) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga104.fm.intel.com with ESMTP; 02 Dec 2016 00:21:25 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.33,285,1477983600"; d="scan'208";a="1067004045" Received: from dpdk26.sh.intel.com ([10.239.128.228]) by orsmga001.jf.intel.com with ESMTP; 02 Dec 2016 00:21:24 -0800 From: Wenzhuo Lu To: dev@dpdk.org Cc: Qi Zhang Date: Thu, 1 Dec 2016 19:11:53 -0500 Message-Id: <1480637533-37425-12-git-send-email-wenzhuo.lu@intel.com> X-Mailer: git-send-email 1.9.3 In-Reply-To: <1480637533-37425-1-git-send-email-wenzhuo.lu@intel.com> References: <1480637533-37425-1-git-send-email-wenzhuo.lu@intel.com> Subject: [dpdk-dev] [PATCH 11/31] net/i40e: fix VF reset flow 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: , X-List-Received-Date: Fri, 02 Dec 2016 08:21:26 -0000 Add missing step during VF reset: PF should set I40E_VFGEN_RSTAT to ACTIVE at end of the VF reset operation or VF driver may not able to detect that reset is already completed. This patch also remove the uneccessary enum for vfr state. Fixes: 4861cde46116 ("i40e: new poll mode driver") Signed-off-by: Qi Zhang --- drivers/net/i40e/i40e_pf.c | 6 ++++-- drivers/net/i40e/i40e_pf.h | 5 ----- 2 files changed, 4 insertions(+), 7 deletions(-) diff --git a/drivers/net/i40e/i40e_pf.c b/drivers/net/i40e/i40e_pf.c index 8b8a14f..2bc3355 100644 --- a/drivers/net/i40e/i40e_pf.c +++ b/drivers/net/i40e/i40e_pf.c @@ -139,7 +139,7 @@ abs_vf_id = vf_id + hw->func_caps.vf_base_id; /* Notify VF that we are in VFR progress */ - I40E_WRITE_REG(hw, I40E_VFGEN_RSTAT1(vf_id), I40E_PF_VFR_INPROGRESS); + I40E_WRITE_REG(hw, I40E_VFGEN_RSTAT1(vf_id), I40E_VFR_INPROGRESS); /* * If require a SW VF reset, a VFLR interrupt will be generated, @@ -220,7 +220,7 @@ } /* Reset done, Set COMPLETE flag and clear reset bit */ - I40E_WRITE_REG(hw, I40E_VFGEN_RSTAT1(vf_id), I40E_PF_VFR_COMPLETED); + I40E_WRITE_REG(hw, I40E_VFGEN_RSTAT1(vf_id), I40E_VFR_COMPLETED); val = I40E_READ_REG(hw, I40E_VPGEN_VFRTRIG(vf_id)); val &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK; I40E_WRITE_REG(hw, I40E_VPGEN_VFRTRIG(vf_id), val); @@ -248,6 +248,8 @@ return -EFAULT; } + I40E_WRITE_REG(hw, I40E_VFGEN_RSTAT1(vf_id), I40E_VFR_VFACTIVE); + return ret; } diff --git a/drivers/net/i40e/i40e_pf.h b/drivers/net/i40e/i40e_pf.h index 59bf2ee..ada398b 100644 --- a/drivers/net/i40e/i40e_pf.h +++ b/drivers/net/i40e/i40e_pf.h @@ -48,11 +48,6 @@ #define I40E_DPDK_OFFSET 0x100 -enum i40e_pf_vfr_state { - I40E_PF_VFR_INPROGRESS = 0, - I40E_PF_VFR_COMPLETED = 1, -}; - /* DPDK pf driver specific command to VF */ enum i40e_virtchnl_ops_dpdk { /* -- 1.9.3