[PATCH V2 net-next 1/5] net: hns3: add support config dscp map to tc
From: Guangbin Huang
Date: Tue Sep 06 2022 - 05:15:13 EST
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@xxxxxxxxxx>
Reported-by: kernel test robot <lkp@xxxxxxxxx>
---
drivers/net/ethernet/hisilicon/hns3/hnae3.h | 10 +++
.../net/ethernet/hisilicon/hns3/hns3_dcbnl.c | 28 ++++++
.../hisilicon/hns3/hns3pf/hclge_dcb.c | 89 +++++++++++++++++++
.../hisilicon/hns3/hns3pf/hclge_main.c | 19 ++++
.../hisilicon/hns3/hns3pf/hclge_main.h | 4 +
.../ethernet/hisilicon/hns3/hns3pf/hclge_tm.c | 50 ++++++++++-
.../ethernet/hisilicon/hns3/hns3pf/hclge_tm.h | 5 ++
7 files changed, 204 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..fbb159f48b6c 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
@@ -359,6 +359,93 @@ 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;
+}
+
/* DCBX configuration */
static u8 hclge_getdcbx(struct hnae3_handle *h)
{
@@ -543,6 +630,8 @@ 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_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index fcdc978379ff..17269cc57289 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -12805,6 +12805,24 @@ static void hclge_clean_vport_config(struct hnae3_ae_dev *ae_dev, int num_vfs)
}
}
+static 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;
+}
+
static const struct hnae3_ae_ops hclge_ops = {
.init_ae_dev = hclge_init_ae_dev,
.uninit_ae_dev = hclge_uninit_ae_dev,
@@ -12907,6 +12925,7 @@ 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,
};
static struct hnae3_ae_algo ae_algo = {
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
index 18caddd541f8..8498cd8d36f9 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
@@ -349,11 +349,15 @@ struct hclge_cfg {
u16 umv_space;
};
+#define HCLGE_MAX_DSCP 64
+#define HCLGE_PRIO_ID_INVALID 0xff
struct hclge_tm_info {
u8 num_tc;
u8 num_pg; /* It must be 1 if vNET-Base schd */
+ u8 dscp_app_cnt;
u8 pg_dwrr[HCLGE_PG_NUM];
u8 prio_tc[HNAE3_MAX_USER_PRIO];
+ u8 dscp_prio[HCLGE_MAX_DSCP];
struct hclge_pg_info pg_info[HCLGE_PG_NUM];
struct hclge_tc_info tc_info[HNAE3_MAX_TC];
enum hclge_fc_mode fc_mode;
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
index 2f33b036a47a..7630d1f01e04 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
@@ -248,7 +248,7 @@ static int hclge_fill_pri_array(struct hclge_dev *hdev, u8 *pri, u8 pri_id)
return 0;
}
-static int hclge_up_to_tc_map(struct hclge_dev *hdev)
+int hclge_up_to_tc_map(struct hclge_dev *hdev)
{
struct hclge_desc desc;
u8 *pri = (u8 *)desc.data;
@@ -266,6 +266,47 @@ static int hclge_up_to_tc_map(struct hclge_dev *hdev)
return hclge_cmd_send(&hdev->hw, &desc, 1);
}
+static void hclge_dscp_to_prio_map_init(struct hclge_dev *hdev)
+{
+ u8 i;
+
+ hdev->vport[0].nic.kinfo.tc_map_mode = HNAE3_TC_MAP_MODE_PRIO;
+ hdev->tm_info.dscp_app_cnt = 0;
+ for (i = 0; i < HCLGE_MAX_DSCP; i++)
+ hdev->tm_info.dscp_prio[i] = HCLGE_PRIO_ID_INVALID;
+}
+
+int hclge_dscp_to_tc_map(struct hclge_dev *hdev)
+{
+ struct hclge_desc desc[HCLGE_DSCP_MAP_TC_BD_NUM];
+ u8 *req0 = (u8 *)desc[0].data;
+ u8 *req1 = (u8 *)desc[1].data;
+ u8 pri_id, tc_id, i, j;
+
+ hclge_cmd_setup_basic_desc(&desc[0], HCLGE_OPC_QOS_MAP, false);
+ desc[0].flag |= cpu_to_le16(HCLGE_COMM_CMD_FLAG_NEXT);
+ hclge_cmd_setup_basic_desc(&desc[1], HCLGE_OPC_QOS_MAP, false);
+
+ /* The low 32 dscp setting use bd0, high 32 dscp setting use bd1 */
+ for (i = 0; i < HCLGE_MAX_DSCP / HCLGE_DSCP_MAP_TC_BD_NUM; i++) {
+ pri_id = hdev->tm_info.dscp_prio[i];
+ pri_id = pri_id == HCLGE_PRIO_ID_INVALID ? 0 : pri_id;
+ tc_id = hdev->tm_info.prio_tc[pri_id];
+ /* Each dscp setting has 4 bits, so each byte saves two dscp
+ * setting
+ */
+ req0[i >> 1] |= tc_id << HCLGE_DSCP_TC_SHIFT(i);
+
+ j = i + HCLGE_MAX_DSCP / HCLGE_DSCP_MAP_TC_BD_NUM;
+ pri_id = hdev->tm_info.dscp_prio[j];
+ pri_id = pri_id == HCLGE_PRIO_ID_INVALID ? 0 : pri_id;
+ tc_id = hdev->tm_info.prio_tc[pri_id];
+ req1[i >> 1] |= tc_id << HCLGE_DSCP_TC_SHIFT(i);
+ }
+
+ return hclge_cmd_send(&hdev->hw, desc, HCLGE_DSCP_MAP_TC_BD_NUM);
+}
+
static int hclge_tm_pg_to_pri_map_cfg(struct hclge_dev *hdev,
u8 pg_id, u8 pri_bit_map)
{
@@ -1275,6 +1316,12 @@ static int hclge_tm_map_cfg(struct hclge_dev *hdev)
if (ret)
return ret;
+ if (hdev->vport[0].nic.kinfo.tc_map_mode == HNAE3_TC_MAP_MODE_DSCP) {
+ ret = hclge_dscp_to_tc_map(hdev);
+ if (ret)
+ return ret;
+ }
+
ret = hclge_tm_pg_to_pri_map(hdev);
if (ret)
return ret;
@@ -1646,6 +1693,7 @@ int hclge_tm_schd_init(struct hclge_dev *hdev)
return -EINVAL;
hclge_tm_schd_info_init(hdev);
+ hclge_dscp_to_prio_map_init(hdev);
return hclge_tm_init_hw(hdev, true);
}
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h
index d943943912f7..68f28a98e380 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h
@@ -30,6 +30,9 @@ enum hclge_opcode_type;
#define HCLGE_TM_PF_MAX_PRI_NUM 8
#define HCLGE_TM_PF_MAX_QSET_NUM 8
+#define HCLGE_DSCP_MAP_TC_BD_NUM 2
+#define HCLGE_DSCP_TC_SHIFT(n) (((n) & 1) * 4)
+
struct hclge_pg_to_pri_link_cmd {
u8 pg_id;
u8 rsvd1[3];
@@ -262,4 +265,6 @@ int hclge_tm_get_pg_shaper(struct hclge_dev *hdev, u8 pg_id,
struct hclge_tm_shaper_para *para);
int hclge_tm_get_port_shaper(struct hclge_dev *hdev,
struct hclge_tm_shaper_para *para);
+int hclge_up_to_tc_map(struct hclge_dev *hdev);
+int hclge_dscp_to_tc_map(struct hclge_dev *hdev);
#endif
--
2.33.0