From: Xiao Zhang <xiao.zhang@intel.com> To: dev@dpdk.org Cc: beilei.xing@intel.com, qi.z.zhang@intel.com, Xiao Zhang <xiao.zhang@intel.com>, stable@dpdk.org Subject: [dpdk-dev] [v2] net/i40e: fix vf runtime queues rss config Date: Fri, 9 Aug 2019 00:41:13 +0800 Message-ID: <1565282473-35661-1-git-send-email-xiao.zhang@intel.com> (raw) In-Reply-To: <1565136542-7652-1-git-send-email-xiao.zhang@intel.com> I40evf queue can not work properly with kernel pf driver. Eg. when configure 8 queues pair, only 4 queues can receive packets, and half packets will be lost if using 2 queues pair. This issue is caused by misconfiguration of look up table, use aq command to setup the lut to make it work properly. Fixes: cea7a51c1750 ("i40evf: support RSS") Cc: stable@dpdk.org Signed-off-by: Xiao Zhang <xiao.zhang@intel.com> --- v2 change for loop format to avoid build patch issue. --- drivers/net/i40e/i40e_ethdev_vf.c | 36 +++++++++++++++++++++++++++++------- 1 file changed, 29 insertions(+), 7 deletions(-) diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c index 308fb98..2d3cf3e 100644 --- a/drivers/net/i40e/i40e_ethdev_vf.c +++ b/drivers/net/i40e/i40e_ethdev_vf.c @@ -2574,6 +2574,26 @@ i40evf_hw_rss_hash_set(struct i40e_vf *vf, struct rte_eth_rss_conf *rss_conf) if (ret) return ret; + if (vf->flags & I40E_FLAG_RSS_AQ_CAPABLE) { + uint8_t *lut; + uint32_t rss_lut_size = (I40E_VFQF_HLUT1_MAX_INDEX + 1) * 4; + uint32_t i; + lut = rte_zmalloc("i40e_rss_lut", rss_lut_size, 0); + if (!lut) { + PMD_DRV_LOG(ERR, "No memory can be allocated"); + return -ENOMEM; + } + + for (i = 0; i < rss_lut_size; i++) + lut[i] = i % vf->num_queue_pairs; + + ret = i40evf_set_rss_lut(&vf->vsi, lut, + rss_lut_size); + rte_free(lut); + if (ret) + return ret; + } + hena = i40e_config_hena(vf->adapter, rss_conf->rss_hf); i40e_write_rx_ctl(hw, I40E_VFQF_HENA(0), (uint32_t)hena); i40e_write_rx_ctl(hw, I40E_VFQF_HENA(1), (uint32_t)(hena >> 32)); @@ -2607,13 +2627,15 @@ i40evf_config_rss(struct i40e_vf *vf) } num = RTE_MIN(vf->dev_data->nb_rx_queues, I40E_MAX_QP_NUM_PER_VF); - /* Fill out the look up table */ - for (i = 0, j = 0; i < nb_q; i++, j++) { - if (j >= num) - j = 0; - lut = (lut << 8) | j; - if ((i & 3) == 3) - I40E_WRITE_REG(hw, I40E_VFQF_HLUT(i >> 2), lut); + if (!(vf->flags & I40E_FLAG_RSS_AQ_CAPABLE)) { + /* Fill out the look up table */ + for (i = 0, j = 0; i < nb_q; i++, j++) { + if (j >= num) + j = 0; + lut = (lut << 8) | j; + if ((i & 3) == 3) + I40E_WRITE_REG(hw, I40E_VFQF_HLUT(i >> 2), lut); + } } rss_conf = vf->dev_data->dev_conf.rx_adv_conf.rss_conf; -- 2.7.4
next prev parent reply index Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-08-07 0:09 [dpdk-dev] " Xiao Zhang 2019-08-08 16:41 ` Xiao Zhang [this message] 2019-08-09 2:44 ` [dpdk-dev] [v2] " Xing, Beilei 2019-08-09 3:25 ` Zhang, Xiao 2019-08-12 10:29 ` [dpdk-dev] [v3] " Xiao Zhang 2019-08-12 17:43 ` [dpdk-dev] [v4] " Xiao Zhang 2019-08-12 12:07 ` Aaron Conole 2019-08-13 1:43 ` Xing, Beilei 2019-08-13 10:40 ` [dpdk-dev] [v5] " Xiao Zhang 2019-08-13 2:21 ` Xing, Beilei 2019-08-13 6:28 ` Ye Xiaolong 2019-08-13 7:24 ` Zhang, Xiao 2019-08-13 7:37 ` Ye Xiaolong 2019-08-13 7:59 ` Zhang, Xiao 2019-08-13 22:17 ` [dpdk-dev] [v6] " Xiao Zhang 2019-08-13 14:55 ` Ye Xiaolong
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