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auth=pass smtp.auth=CUSA81A106 smtp.mailfrom=sodey@rbbn.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: rbbn.com Subject: [dpdk-dev] [PATCH v3] net/i40e: issue with ADD VLAN from Guest 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" Reset the configuration of vlan strip that would be change by the pf kernel driver when adding vlan from vf. Application cannot use rte_eth_dev_set_vlan_offload() to set the VLAN_STRIP, as this will only work for the first time when original and current config mismatch, but for all subsequent call it will be ignored. Signed-off-by: Souvik Dey Acked-by: Jeff Guo > Signed-off-by: Souvik Dey > Acked-by: Jeff Guo > Signed-off-by: Souvik Dey > --- v3: * Changed the error log in case vlan strip command fails as per the latest comment. --- v2: * Simplied the commit log. * goto err; is not required as it has only one more return path and there is no cleanup required apart from just return err. * Updated the comment start from /* -> /** * Changed the error log in case vlan strip command fails. --- drivers/net/i40e/i40e_ethdev_vf.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c index c26b036..2faee1d 100644 --- a/drivers/net/i40e/i40e_ethdev_vf.c +++ b/drivers/net/i40e/i40e_ethdev_vf.c @@ -1078,8 +1078,18 @@ i40evf_add_vlan(struct rte_eth_dev *dev, uint16_t vlanid) args.out_buffer = vf->aq_resp; args.out_size = I40E_AQ_BUF_SZ; err = i40evf_execute_vf_cmd(dev, &args); - if (err) + if (err) { PMD_DRV_LOG(ERR, "fail to execute command OP_ADD_VLAN"); + return err; + } + /** + * In linux kernel driver on receiving ADD_VLAN it enables + * VLAN_STRIP by default. So reconfigure the vlan_offload + * as it was done by the app earlier. + */ + err = i40evf_vlan_offload_set(dev, ETH_VLAN_STRIP_MASK); + if (err) + PMD_DRV_LOG(ERR, "fail to set vlan_strip"); return err; }