From 0ba22bcb222d2761feccb46d0ee4eb9db1f53a7d Mon Sep 17 00:00:00 2001 From: Guangbin Huang Date: Tue, 6 Sep 2022 17:12:19 +0800 Subject: [PATCH] net: hns3: add support config dscp map to tc 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 Reported-by: kernel test robot Signed-off-by: David S. Miller --- 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