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Date: Tue, 6 Sep 2022 21:50:46 +0800
From: "huangguangbin (A)" <huangguangbin2@...wei.com>
To: Paolo Abeni <pabeni@...hat.com>, <davem@...emloft.net>,
<kuba@...nel.org>
CC: <edumazet@...gle.com>, <netdev@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, <lipeng321@...wei.com>,
<lanhao@...wei.com>
Subject: Re: [PATCH net-next 1/5] net: hns3: add support config dscp map to tc
On 2022/9/6 21:12, Paolo Abeni wrote:
> On Mon, 2022-09-05 at 16:15 +0800, Guangbin Huang wrote:
>> This patch add support config dscp map to tc by implementing ieee_setapp
>> and ieee_delapp of struct dcbnl_rtnl_ops. Driver will convert mapping
>> relationship from dscp-prio to dscp-tc.
>>
>> Signed-off-by: Guangbin Huang <huangguangbin2@...wei.com>
>> ---
>> drivers/net/ethernet/hisilicon/hns3/hnae3.h | 10 ++
>> .../net/ethernet/hisilicon/hns3/hns3_dcbnl.c | 28 +++++
>> .../hisilicon/hns3/hns3pf/hclge_dcb.c | 107 ++++++++++++++++++
>> .../hisilicon/hns3/hns3pf/hclge_dcb.h | 3 +
>> .../hisilicon/hns3/hns3pf/hclge_main.c | 1 +
>> .../hisilicon/hns3/hns3pf/hclge_main.h | 4 +
>> .../ethernet/hisilicon/hns3/hns3pf/hclge_tm.c | 50 +++++++-
>> .../ethernet/hisilicon/hns3/hns3pf/hclge_tm.h | 5 +
>> 8 files changed, 207 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
>> index 795df7111119..33b5ac47f342 100644
>> --- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
>> +++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
>> @@ -310,6 +310,11 @@ enum hnae3_dbg_cmd {
>> HNAE3_DBG_CMD_UNKNOWN,
>> };
>>
>> +enum hnae3_tc_map_mode {
>> + HNAE3_TC_MAP_MODE_PRIO,
>> + HNAE3_TC_MAP_MODE_DSCP,
>> +};
>> +
>> struct hnae3_vector_info {
>> u8 __iomem *io_addr;
>> int vector;
>> @@ -739,6 +744,8 @@ struct hnae3_ae_ops {
>> int (*get_link_diagnosis_info)(struct hnae3_handle *handle,
>> u32 *status_code);
>> void (*clean_vf_config)(struct hnae3_ae_dev *ae_dev, int num_vfs);
>> + int (*get_dscp_prio)(struct hnae3_handle *handle, u8 dscp,
>> + u8 *tc_map_mode, u8 *priority);
>> };
>>
>> struct hnae3_dcb_ops {
>> @@ -747,6 +754,8 @@ struct hnae3_dcb_ops {
>> int (*ieee_setets)(struct hnae3_handle *, struct ieee_ets *);
>> int (*ieee_getpfc)(struct hnae3_handle *, struct ieee_pfc *);
>> int (*ieee_setpfc)(struct hnae3_handle *, struct ieee_pfc *);
>> + int (*ieee_setapp)(struct hnae3_handle *h, struct dcb_app *app);
>> + int (*ieee_delapp)(struct hnae3_handle *h, struct dcb_app *app);
>>
>> /* DCBX configuration */
>> u8 (*getdcbx)(struct hnae3_handle *);
>> @@ -786,6 +795,7 @@ struct hnae3_knic_private_info {
>> u32 tx_spare_buf_size;
>>
>> struct hnae3_tc_info tc_info;
>> + u8 tc_map_mode;
>>
>> u16 num_tqps; /* total number of TQPs in this handle */
>> struct hnae3_queue **tqp; /* array base of all TQPs in this instance */
>> diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_dcbnl.c b/drivers/net/ethernet/hisilicon/hns3/hns3_dcbnl.c
>> index d2ec4c573bf8..3b6dbf158b98 100644
>> --- a/drivers/net/ethernet/hisilicon/hns3/hns3_dcbnl.c
>> +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_dcbnl.c
>> @@ -56,6 +56,32 @@ static int hns3_dcbnl_ieee_setpfc(struct net_device *ndev, struct ieee_pfc *pfc)
>> return -EOPNOTSUPP;
>> }
>>
>> +static int hns3_dcbnl_ieee_setapp(struct net_device *ndev, struct dcb_app *app)
>> +{
>> + struct hnae3_handle *h = hns3_get_handle(ndev);
>> +
>> + if (hns3_nic_resetting(ndev))
>> + return -EBUSY;
>> +
>> + if (h->kinfo.dcb_ops->ieee_setapp)
>> + return h->kinfo.dcb_ops->ieee_setapp(h, app);
>> +
>> + return -EOPNOTSUPP;
>> +}
>> +
>> +static int hns3_dcbnl_ieee_delapp(struct net_device *ndev, struct dcb_app *app)
>> +{
>> + struct hnae3_handle *h = hns3_get_handle(ndev);
>> +
>> + if (hns3_nic_resetting(ndev))
>> + return -EBUSY;
>> +
>> + if (h->kinfo.dcb_ops->ieee_setapp)
>> + return h->kinfo.dcb_ops->ieee_delapp(h, app);
>> +
>> + return -EOPNOTSUPP;
>> +}
>> +
>> /* DCBX configuration */
>> static u8 hns3_dcbnl_getdcbx(struct net_device *ndev)
>> {
>> @@ -83,6 +109,8 @@ static const struct dcbnl_rtnl_ops hns3_dcbnl_ops = {
>> .ieee_setets = hns3_dcbnl_ieee_setets,
>> .ieee_getpfc = hns3_dcbnl_ieee_getpfc,
>> .ieee_setpfc = hns3_dcbnl_ieee_setpfc,
>> + .ieee_setapp = hns3_dcbnl_ieee_setapp,
>> + .ieee_delapp = hns3_dcbnl_ieee_delapp,
>> .getdcbx = hns3_dcbnl_getdcbx,
>> .setdcbx = hns3_dcbnl_setdcbx,
>> };
>> diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
>> index 69b8673436ca..7fcacc76e749 100644
>> --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
>> +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
>> @@ -359,6 +359,111 @@ static int hclge_ieee_setpfc(struct hnae3_handle *h, struct ieee_pfc *pfc)
>> return hclge_notify_client(hdev, HNAE3_UP_CLIENT);
>> }
>>
>> +static int hclge_ieee_setapp(struct hnae3_handle *h, struct dcb_app *app)
>> +{
>> + struct hclge_vport *vport = hclge_get_vport(h);
>> + struct net_device *netdev = h->kinfo.netdev;
>> + struct hclge_dev *hdev = vport->back;
>> + struct dcb_app old_app;
>> + int ret;
>> +
>> + if (app->selector != IEEE_8021QAZ_APP_SEL_DSCP ||
>> + app->protocol >= HCLGE_MAX_DSCP ||
>> + app->priority >= HNAE3_MAX_USER_PRIO)
>> + return -EINVAL;
>> +
>> + dev_info(&hdev->pdev->dev, "setapp dscp=%u priority=%u\n",
>> + app->protocol, app->priority);
>> +
>> + if (app->priority == hdev->tm_info.dscp_prio[app->protocol])
>> + return 0;
>> +
>> + ret = dcb_ieee_setapp(netdev, app);
>> + if (ret)
>> + return ret;
>> +
>> + old_app.selector = IEEE_8021QAZ_APP_SEL_DSCP;
>> + old_app.protocol = app->protocol;
>> + old_app.priority = hdev->tm_info.dscp_prio[app->protocol];
>> +
>> + hdev->tm_info.dscp_prio[app->protocol] = app->priority;
>> + ret = hclge_dscp_to_tc_map(hdev);
>> + if (ret) {
>> + dev_err(&hdev->pdev->dev,
>> + "failed to set dscp to tc map, ret = %d\n", ret);
>> + hdev->tm_info.dscp_prio[app->protocol] = old_app.priority;
>> + (void)dcb_ieee_delapp(netdev, app);
>> + return ret;
>> + }
>> +
>> + vport->nic.kinfo.tc_map_mode = HNAE3_TC_MAP_MODE_DSCP;
>> + if (old_app.priority == HCLGE_PRIO_ID_INVALID)
>> + hdev->tm_info.dscp_app_cnt++;
>> + else
>> + ret = dcb_ieee_delapp(netdev, &old_app);
>> +
>> + return ret;
>> +}
>> +
>> +static int hclge_ieee_delapp(struct hnae3_handle *h, struct dcb_app *app)
>> +{
>> + struct hclge_vport *vport = hclge_get_vport(h);
>> + struct net_device *netdev = h->kinfo.netdev;
>> + struct hclge_dev *hdev = vport->back;
>> + int ret;
>> +
>> + if (app->selector != IEEE_8021QAZ_APP_SEL_DSCP ||
>> + app->protocol >= HCLGE_MAX_DSCP ||
>> + app->priority >= HNAE3_MAX_USER_PRIO ||
>> + app->priority != hdev->tm_info.dscp_prio[app->protocol])
>> + return -EINVAL;
>> +
>> + dev_info(&hdev->pdev->dev, "delapp dscp=%u priority=%u\n",
>> + app->protocol, app->priority);
>> +
>> + ret = dcb_ieee_delapp(netdev, app);
>> + if (ret)
>> + return ret;
>> +
>> + hdev->tm_info.dscp_prio[app->protocol] = HCLGE_PRIO_ID_INVALID;
>> + ret = hclge_dscp_to_tc_map(hdev);
>> + if (ret) {
>> + dev_err(&hdev->pdev->dev,
>> + "failed to del dscp to tc map, ret = %d\n", ret);
>> + hdev->tm_info.dscp_prio[app->protocol] = app->priority;
>> + (void)dcb_ieee_setapp(netdev, app);
>> + return ret;
>> + }
>> +
>> + if (hdev->tm_info.dscp_app_cnt)
>> + hdev->tm_info.dscp_app_cnt--;
>> +
>> + if (!hdev->tm_info.dscp_app_cnt) {
>> + vport->nic.kinfo.tc_map_mode = HNAE3_TC_MAP_MODE_PRIO;
>> + ret = hclge_up_to_tc_map(hdev);
>> + }
>> +
>> + return ret;
>> +}
>> +
>> +int hclge_get_dscp_prio(struct hnae3_handle *h, u8 dscp, u8 *tc_mode,
>> + u8 *priority)
>> +{
>> + struct hclge_vport *vport = hclge_get_vport(h);
>> + struct hclge_dev *hdev = vport->back;
>> +
>> + if (dscp >= HCLGE_MAX_DSCP)
>> + return -EINVAL;
>> +
>> + if (tc_mode)
>> + *tc_mode = vport->nic.kinfo.tc_map_mode;
>> + if (priority)
>> + *priority = hdev->tm_info.dscp_prio[dscp] == HCLGE_PRIO_ID_INVALID ? 0 :
>> + hdev->tm_info.dscp_prio[dscp];
>> +
>> + return 0;
>> +}
>> +
>> /* DCBX configuration */
>> static u8 hclge_getdcbx(struct hnae3_handle *h)
>> {
>> @@ -543,6 +648,8 @@ static const struct hnae3_dcb_ops hns3_dcb_ops = {
>> .ieee_setets = hclge_ieee_setets,
>> .ieee_getpfc = hclge_ieee_getpfc,
>> .ieee_setpfc = hclge_ieee_setpfc,
>> + .ieee_setapp = hclge_ieee_setapp,
>> + .ieee_delapp = hclge_ieee_delapp,
>> .getdcbx = hclge_getdcbx,
>> .setdcbx = hclge_setdcbx,
>> .setup_tc = hclge_setup_tc,
>> diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.h
>> index b04702e65689..17a5460e7ea9 100644
>> --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.h
>> +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.h
>> @@ -12,4 +12,7 @@ void hclge_dcb_ops_set(struct hclge_dev *hdev);
>> static inline void hclge_dcb_ops_set(struct hclge_dev *hdev) {}
>> #endif
>>
>> +int hclge_get_dscp_prio(struct hnae3_handle *h, u8 dscp, u8 *tc_mode,
>> + u8 *priority);
>> +
>> #endif /* __HCLGE_DCB_H__ */
>> diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
>> index fcdc978379ff..f43c7d392d1a 100644
>> --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
>> +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
>> @@ -12907,6 +12907,7 @@ static const struct hnae3_ae_ops hclge_ops = {
>> .get_ts_info = hclge_ptp_get_ts_info,
>> .get_link_diagnosis_info = hclge_get_link_diagnosis_info,
>> .clean_vf_config = hclge_clean_vport_config,
>> + .get_dscp_prio = hclge_get_dscp_prio,
>
> This brings in an implicit dependency on CONFIG_HNS3_DCB, causing the
> build error reported by the intel bot.
>
> Please, address the above, thanks!
>
> Paolo
>
> .
>
Ok, I have modified in V2.
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