From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ferruh Yigit Subject: [PATCH v4 24/29] net/i40e: change version number to support Linux VF Date: Fri, 16 Dec 2016 14:39:14 +0000 Message-ID: <20161216143919.4909-25-ferruh.yigit@intel.com> References: <1481835919-36488-1-git-send-email-qi.z.zhang@intel.com> <20161216143919.4909-1-ferruh.yigit@intel.com> Cc: Jingjing Wu ; Helin Zhang , "Chen Jing D(Mark)" To: dev@dpdk.org Return-path: Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by dpdk.org (Postfix) with ESMTP id 02DA5FA4A for ; Fri, 16 Dec 2016 15:42:47 +0100 (CET) In-Reply-To: <20161216143919.4909-1-ferruh.yigit@intel.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" From: "Chen Jing D(Mark)" i40e PF host only support to work with DPDK VF driver, Linux VF driver is not supported. This change will enhance in version number returned. Current version info returned won't be able to be recognized by Linux VF driver, change to values that both DPDK VF and Linux driver can recognize. The expense is original DPDK host specific feature like CFG_VLAN_PVID and CONFIG_VSI_QUEUES_EXT will not available. DPDK VF also can't identify host driver by version number returned. It always assume talking with Linux PF. Signed-off-by: Chen Jing D(Mark) --- drivers/net/i40e/i40e_pf.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/net/i40e/i40e_pf.c b/drivers/net/i40e/i40e_pf.c index 2bc3355..0f582ed 100644 --- a/drivers/net/i40e/i40e_pf.c +++ b/drivers/net/i40e/i40e_pf.c @@ -279,8 +279,19 @@ i40e_pf_host_process_cmd_version(struct i40e_pf_vf *vf, bool b_op) { struct i40e_virtchnl_version_info info; - info.major = I40E_DPDK_VERSION_MAJOR; - info.minor = I40E_DPDK_VERSION_MINOR; + /* Respond like a Linux PF host in order to support both DPDK VF and + * Linux VF driver. The expense is original DPDK host specific feature + * like CFG_VLAN_PVID and CONFIG_VSI_QUEUES_EXT will not available. + * + * DPDK VF also can't identify host driver by version number returned. + * It always assume talking with Linux PF. + * + * TODO: + * Discuss with Linux driver maintainer if possible to carry more info + * in this function to identify it's Linux or DPDK host. + */ + info.major = I40E_VIRTCHNL_VERSION_MAJOR; + info.minor = I40E_VIRTCHNL_VERSION_MINOR_NO_VF_CAPS; if (b_op) i40e_pf_host_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_VERSION, -- 2.9.3