[dpdk-dev] [PATCH v4 2/2] ethdev: fix VLAN offloads set if no relative capabilities
Wei Hu (Xavier)
xavier.huwei at huawei.com
Fri Jul 3 03:28:40 CEST 2020
Hi, Heinrich Kuhn & Jerin Jacob & Nithin Dabilpuram & Kiran Kumar K &
Rasesh Mody & Shahed Shaikh & Qi Zhang & Xiao Wang & Beilei Xing &
Jeff Guo.
Could you please help to review this patch and give 'Acked-by' if there
are no objects.
Thanks, Xavier
On 2020/6/29 9:34, Wei Hu (Xavier) wrote:
> Hi, Heinrich Kuhn & Harman Kalra & Jerin Jacob & Nithin Dabilpuram &
> Kiran Kumar K &
>
> Rasesh Mody & Shahed Shaikh & Qi Zhang & Xiao Wang & Beilei Xing &
> Jeff Guo.
>
> Could you please help to review this patch and give 'Acked-by' if
> there are no objects.
>
> Thanks, Xavier
>
> On 2020/6/22 16:09, Wei Hu (Xavier) wrote:
>> Currently, there is a potential problem that calling the API function
>> rte_eth_dev_set_vlan_offload to start VLAN hardware offloads which the
>> driver does not support. If the PMD driver does not support certain VLAN
>> hardware offloads and does not check for it, the hardware setting will
>> not change, but the VLAN offloads in dev->data->dev_conf.rxmode.offloads
>> will be turned on.
>>
>> It is supposed to check the hardware capabilities to decide whether the
>> relative callback needs to be called just like the behavior in the API
>> function named rte_eth_dev_configure. And it is also needed to cleanup
>> duplicated checks which are done in some PMDs. Also, note that it is
>> behaviour change for some PMDs which simply ignore (with
>> error/warning log
>> message) unsupported VLAN offloads, but now it will fail.
>>
>> Fixes: a4996bd89c42 ("ethdev: new Rx/Tx offloads API")
>> Cc: stable at dpdk.org
>>
>> Signed-off-by: Chengchang Tang <tangchengchang at huawei.com>
>> Signed-off-by: Wei Hu (Xavier) <xavier.huwei at huawei.com>
>> Acked-by: Andrew Rybchenko <arybchenko at solarflare.com>
>> Acked-by: Hyong Youb Kim <hyonkim at cisco.com>
>> ---
>> v3 -> v4: Delete "next_mask" label and modify the function that when the
>> offload is not supported the function fail.
>> v2 -> v3: Add __rte_unused to avoid unused parameter 'dev' and 'mask'
>> warning.
>> v1 -> v2: Cleanup duplicated checks which are done in some PMDs.
>> ---
>> drivers/net/dpaa2/dpaa2_ethdev.c | 12 +++---------
>> drivers/net/enic/enic_ethdev.c | 12 ------------
>> drivers/net/fm10k/fm10k_ethdev.c | 23
>> ++---------------------
>> drivers/net/hinic/hinic_pmd_ethdev.c | 6 ------
>> drivers/net/i40e/i40e_ethdev.c | 5 -----
>> drivers/net/nfp/nfp_net.c | 5 -----
>> drivers/net/octeontx/octeontx_ethdev_ops.c | 10 ----------
>> drivers/net/octeontx2/otx2_vlan.c | 5 -----
>> drivers/net/qede/qede_ethdev.c | 3 ---
>> lib/librte_ethdev/rte_ethdev.c | 21 +++++++++++++++++++++
>> 10 files changed, 26 insertions(+), 76 deletions(-)
>>
>> diff --git a/drivers/net/dpaa2/dpaa2_ethdev.c
>> b/drivers/net/dpaa2/dpaa2_ethdev.c
>> index 2f031ec..17a7a49 100644
>> --- a/drivers/net/dpaa2/dpaa2_ethdev.c
>> +++ b/drivers/net/dpaa2/dpaa2_ethdev.c
>> @@ -147,7 +147,7 @@ dpaa2_vlan_offload_set(struct rte_eth_dev *dev,
>> int mask)
>> {
>> struct dpaa2_dev_priv *priv = dev->data->dev_private;
>> struct fsl_mc_io *dpni = dev->process_private;
>> - int ret;
>> + int ret = 0;
>> PMD_INIT_FUNC_TRACE();
>> @@ -155,7 +155,7 @@ dpaa2_vlan_offload_set(struct rte_eth_dev *dev,
>> int mask)
>> /* VLAN Filter not avaialble */
>> if (!priv->max_vlan_filters) {
>> DPAA2_PMD_INFO("VLAN filter not available");
>> - goto next_mask;
>> + return -ENOTSUP;
>> }
>> if (dev->data->dev_conf.rxmode.offloads &
>> @@ -168,14 +168,8 @@ dpaa2_vlan_offload_set(struct rte_eth_dev *dev,
>> int mask)
>> if (ret < 0)
>> DPAA2_PMD_INFO("Unable to set vlan filter = %d", ret);
>> }
>> -next_mask:
>> - if (mask & ETH_VLAN_EXTEND_MASK) {
>> - if (dev->data->dev_conf.rxmode.offloads &
>> - DEV_RX_OFFLOAD_VLAN_EXTEND)
>> - DPAA2_PMD_INFO("VLAN extend offload not supported");
>> - }
>> - return 0;
>> + return ret;
>> }
>> static int
>> diff --git a/drivers/net/enic/enic_ethdev.c
>> b/drivers/net/enic/enic_ethdev.c
>> index 32d5397..ef8900d 100644
>> --- a/drivers/net/enic/enic_ethdev.c
>> +++ b/drivers/net/enic/enic_ethdev.c
>> @@ -374,18 +374,6 @@ static int enicpmd_vlan_offload_set(struct
>> rte_eth_dev *eth_dev, int mask)
>> enic->ig_vlan_strip_en = 0;
>> }
>> - if ((mask & ETH_VLAN_FILTER_MASK) &&
>> - (offloads & DEV_RX_OFFLOAD_VLAN_FILTER)) {
>> - dev_warning(enic,
>> - "Configuration of VLAN filter is not supported\n");
>> - }
>> -
>> - if ((mask & ETH_VLAN_EXTEND_MASK) &&
>> - (offloads & DEV_RX_OFFLOAD_VLAN_EXTEND)) {
>> - dev_warning(enic,
>> - "Configuration of extended VLAN is not supported\n");
>> - }
>> -
>> return enic_set_vlan_strip(enic);
>> }
>> diff --git a/drivers/net/fm10k/fm10k_ethdev.c
>> b/drivers/net/fm10k/fm10k_ethdev.c
>> index f537ab2..f5b854e 100644
>> --- a/drivers/net/fm10k/fm10k_ethdev.c
>> +++ b/drivers/net/fm10k/fm10k_ethdev.c
>> @@ -1575,28 +1575,9 @@ fm10k_vlan_filter_set(struct rte_eth_dev *dev,
>> uint16_t vlan_id, int on)
>> }
>> static int
>> -fm10k_vlan_offload_set(struct rte_eth_dev *dev, int mask)
>> +fm10k_vlan_offload_set(struct rte_eth_dev *dev __rte_unused,
>> + int mask __rte_unused)
>> {
>> - if (mask & ETH_VLAN_STRIP_MASK) {
>> - if (!(dev->data->dev_conf.rxmode.offloads &
>> - DEV_RX_OFFLOAD_VLAN_STRIP))
>> - PMD_INIT_LOG(ERR, "VLAN stripping is "
>> - "always on in fm10k");
>> - }
>> -
>> - if (mask & ETH_VLAN_EXTEND_MASK) {
>> - if (dev->data->dev_conf.rxmode.offloads &
>> - DEV_RX_OFFLOAD_VLAN_EXTEND)
>> - PMD_INIT_LOG(ERR, "VLAN QinQ is not "
>> - "supported in fm10k");
>> - }
>> -
>> - if (mask & ETH_VLAN_FILTER_MASK) {
>> - if (!(dev->data->dev_conf.rxmode.offloads &
>> - DEV_RX_OFFLOAD_VLAN_FILTER))
>> - PMD_INIT_LOG(ERR, "VLAN filter is always on in fm10k");
>> - }
>> -
>> return 0;
>> }
>> diff --git a/drivers/net/hinic/hinic_pmd_ethdev.c
>> b/drivers/net/hinic/hinic_pmd_ethdev.c
>> index 0c3e1c0..0009a61 100644
>> --- a/drivers/net/hinic/hinic_pmd_ethdev.c
>> +++ b/drivers/net/hinic/hinic_pmd_ethdev.c
>> @@ -1701,12 +1701,6 @@ static int hinic_vlan_offload_set(struct
>> rte_eth_dev *dev, int mask)
>> nic_dev->proc_dev_name, dev->data->port_id);
>> }
>> - if (mask & ETH_VLAN_EXTEND_MASK) {
>> - PMD_DRV_LOG(ERR, "Don't support vlan qinq, device: %s,
>> port_id: %d",
>> - nic_dev->proc_dev_name, dev->data->port_id);
>> - return -ENOTSUP;
>> - }
>> -
>> return 0;
>> }
>> diff --git a/drivers/net/i40e/i40e_ethdev.c
>> b/drivers/net/i40e/i40e_ethdev.c
>> index 970a31c..9211cf5 100644
>> --- a/drivers/net/i40e/i40e_ethdev.c
>> +++ b/drivers/net/i40e/i40e_ethdev.c
>> @@ -3877,11 +3877,6 @@ i40e_vlan_offload_set(struct rte_eth_dev *dev,
>> int mask)
>> struct i40e_vsi *vsi = pf->main_vsi;
>> struct rte_eth_rxmode *rxmode;
>> - if (mask & ETH_QINQ_STRIP_MASK) {
>> - PMD_DRV_LOG(ERR, "Strip qinq is not supported.");
>> - return -ENOTSUP;
>> - }
>> -
>> rxmode = &dev->data->dev_conf.rxmode;
>> if (mask & ETH_VLAN_FILTER_MASK) {
>> if (rxmode->offloads & DEV_RX_OFFLOAD_VLAN_FILTER)
>> diff --git a/drivers/net/nfp/nfp_net.c b/drivers/net/nfp/nfp_net.c
>> index 2460ee1..b7a91ae 100644
>> --- a/drivers/net/nfp/nfp_net.c
>> +++ b/drivers/net/nfp/nfp_net.c
>> @@ -2353,11 +2353,6 @@ nfp_net_vlan_offload_set(struct rte_eth_dev
>> *dev, int mask)
>> hw = NFP_NET_DEV_PRIVATE_TO_HW(dev->data->dev_private);
>> new_ctrl = 0;
>> - if ((mask & ETH_VLAN_FILTER_OFFLOAD) ||
>> - (mask & ETH_VLAN_EXTEND_OFFLOAD))
>> - PMD_DRV_LOG(INFO, "No support for ETH_VLAN_FILTER_OFFLOAD or"
>> - " ETH_VLAN_EXTEND_OFFLOAD");
>> -
>> /* Enable vlan strip if it is not configured yet */
>> if ((mask & ETH_VLAN_STRIP_OFFLOAD) &&
>> !(hw->ctrl & NFP_NET_CFG_CTRL_RXVLAN))
>> diff --git a/drivers/net/octeontx/octeontx_ethdev_ops.c
>> b/drivers/net/octeontx/octeontx_ethdev_ops.c
>> index ff627a6..dbe13ce 100644
>> --- a/drivers/net/octeontx/octeontx_ethdev_ops.c
>> +++ b/drivers/net/octeontx/octeontx_ethdev_ops.c
>> @@ -43,16 +43,6 @@ octeontx_dev_vlan_offload_set(struct rte_eth_dev
>> *dev, int mask)
>> rxmode = &dev->data->dev_conf.rxmode;
>> - if (mask & ETH_VLAN_EXTEND_MASK) {
>> - octeontx_log_err("Extend offload not supported");
>> - return -ENOTSUP;
>> - }
>> -
>> - if (mask & ETH_VLAN_STRIP_MASK) {
>> - octeontx_log_err("VLAN strip offload not supported");
>> - return -ENOTSUP;
>> - }
>> -
>> if (mask & ETH_VLAN_FILTER_MASK) {
>> if (rxmode->offloads & DEV_RX_OFFLOAD_VLAN_FILTER) {
>> rc = octeontx_vlan_hw_filter(nic, true);
>> diff --git a/drivers/net/octeontx2/otx2_vlan.c
>> b/drivers/net/octeontx2/otx2_vlan.c
>> index 322a565..7357b06 100644
>> --- a/drivers/net/octeontx2/otx2_vlan.c
>> +++ b/drivers/net/octeontx2/otx2_vlan.c
>> @@ -717,11 +717,6 @@ otx2_nix_vlan_offload_set(struct rte_eth_dev
>> *eth_dev, int mask)
>> rxmode = ð_dev->data->dev_conf.rxmode;
>> - if (mask & ETH_VLAN_EXTEND_MASK) {
>> - otx2_err("Extend offload not supported");
>> - return -ENOTSUP;
>> - }
>> -
>> if (mask & ETH_VLAN_STRIP_MASK) {
>> if (rxmode->offloads & DEV_RX_OFFLOAD_VLAN_STRIP) {
>> offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
>> diff --git a/drivers/net/qede/qede_ethdev.c
>> b/drivers/net/qede/qede_ethdev.c
>> index c4f8f12..04d17c7 100644
>> --- a/drivers/net/qede/qede_ethdev.c
>> +++ b/drivers/net/qede/qede_ethdev.c
>> @@ -1036,9 +1036,6 @@ static int qede_vlan_offload_set(struct
>> rte_eth_dev *eth_dev, int mask)
>> }
>> }
>> - if (mask & ETH_VLAN_EXTEND_MASK)
>> - DP_ERR(edev, "Extend VLAN not supported\n");
>> -
>> qdev->vlan_offload_mask = mask;
>> DP_INFO(edev, "VLAN offload mask %d\n", mask);
>> diff --git a/lib/librte_ethdev/rte_ethdev.c
>> b/lib/librte_ethdev/rte_ethdev.c
>> index b0b0474..bf79749 100644
>> --- a/lib/librte_ethdev/rte_ethdev.c
>> +++ b/lib/librte_ethdev/rte_ethdev.c
>> @@ -3260,12 +3260,14 @@ rte_eth_dev_set_vlan_ether_type(uint16_t
>> port_id,
>> int
>> rte_eth_dev_set_vlan_offload(uint16_t port_id, int offload_mask)
>> {
>> + struct rte_eth_dev_info dev_info;
>> struct rte_eth_dev *dev;
>> int ret = 0;
>> int mask = 0;
>> int cur, org = 0;
>> uint64_t orig_offloads;
>> uint64_t dev_offloads;
>> + uint64_t new_offloads;
>> RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV);
>> dev = &rte_eth_devices[port_id];
>> @@ -3319,6 +3321,25 @@ rte_eth_dev_set_vlan_offload(uint16_t port_id,
>> int offload_mask)
>> if (mask == 0)
>> return ret;
>> + ret = rte_eth_dev_info_get(port_id, &dev_info);
>> + if (ret != 0)
>> + return ret;
>> +
>> + /*
>> + * New added Rx VLAN offloading which are not enabled in
>> + * rte_eth_dev_configure() must be within its device capabilities
>> + */
>> + if ((dev_offloads & dev_info.rx_offload_capa) != dev_offloads) {
>> + new_offloads = dev_offloads & ~orig_offloads;
>> + RTE_ETHDEV_LOG(ERR,
>> + "Ethdev port_id=%u requested new added VLAN offloads "
>> + "0x%" PRIx64 " must be within Rx offloads capabilities "
>> + "0x%" PRIx64 " in %s()\n",
>> + port_id, new_offloads, dev_info.rx_offload_capa,
>> + __func__);
>> + return -EINVAL;
>> + }
>> +
>> RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->vlan_offload_set, -ENOTSUP);
>> dev->data->dev_conf.rxmode.offloads = dev_offloads;
>> ret = (*dev->dev_ops->vlan_offload_set)(dev, mask);
>
> .
>
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