From: Jingjing Wu Date: Fri, 4 Nov 2016 05:42:33 +0000 (+0800) Subject: net/i40e: fix DCB configuration X-Git-Tag: spdx-start~5373 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=c6431c891d9e9691e3205fe5c5350071cbaeb852;p=dpdk.git net/i40e: fix DCB configuration Removing stopping LLDP in firmware is a workaround for a known errata which can cause Rx hang. But the changing will cause DCB configuration fails. That is because when LLDP is enabled, the return value of i40e_init_dcb is success. But following check just considered the case when LLDP agent is disabled. This patch fixes this issue. Fixes: fcbd40d4327b ("net/i40e: fix Rx hang when disable LLDP") Signed-off-by: Jingjing Wu Acked-by: Beilei Xing --- diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c index bb81b156e1..5afca1ef69 100644 --- a/drivers/net/i40e/i40e_ethdev.c +++ b/drivers/net/i40e/i40e_ethdev.c @@ -9428,12 +9428,12 @@ i40e_dcb_init_configure(struct rte_eth_dev *dev, bool sw_dcb) */ if (sw_dcb == TRUE) { ret = i40e_init_dcb(hw); - /* if sw_dcb, lldp agent is stopped, the return from + /* If lldp agent is stopped, the return value from * i40e_init_dcb we expect is failure with I40E_AQ_RC_EPERM - * adminq status. + * adminq status. Otherwise, it should return success. */ - if (ret != I40E_SUCCESS && - hw->aq.asq_last_status == I40E_AQ_RC_EPERM) { + if ((ret == I40E_SUCCESS) || (ret != I40E_SUCCESS && + hw->aq.asq_last_status == I40E_AQ_RC_EPERM)) { memset(&hw->local_dcbx_config, 0, sizeof(struct i40e_dcbx_config)); /* set dcb default configuration */ @@ -9462,8 +9462,8 @@ i40e_dcb_init_configure(struct rte_eth_dev *dev, bool sw_dcb) return -ENOSYS; } } else { - PMD_INIT_LOG(ERR, "DCBX configuration failed, err = %d," - " aq_err = %d.", ret, + PMD_INIT_LOG(ERR, "DCB initialization in FW fails," + " err = %d, aq_err = %d.", ret, hw->aq.asq_last_status); return -ENOTSUP; }