From dfea275e06c26690b1ef27399fd84ce50372b85c Mon Sep 17 00:00:00 2001 From: Guangbin Huang Date: Fri, 16 Sep 2022 10:38:01 +0800 Subject: [PATCH] net: hns3: optimize converting dscp to priority process of hns3_nic_select_queue() Currently, when function hns3_nic_select_queue() converts dscp to priority, it calls an indirect callback ae_algo->ops->get_dscp_prio to get priority. However as function hns3_nic_select_queue() is in fast path, the indirect call may cause degradation of performance. For optimization, this patch moves dscp_app_cnt and dscp_prio from struct hclge_tm_info to struct hnae3_knic_private_info, so they can be used in both hclge and hns3 layers. Signed-off-by: Guangbin Huang Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/hisilicon/hns3/hnae3.h | 4 ++++ drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 13 ++++------ .../net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c | 28 +++++++++++----------- .../ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c | 17 ++++++------- .../ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 11 ++++----- .../ethernet/hisilicon/hns3/hns3pf/hclge_main.h | 4 ---- .../net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c | 18 +++++++------- 7 files changed, 45 insertions(+), 50 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h index 30a76f4..0179fc2 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h +++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h @@ -798,6 +798,8 @@ struct hnae3_tc_info { bool mqprio_active; }; +#define HNAE3_MAX_DSCP 64 +#define HNAE3_PRIO_ID_INVALID 0xff struct hnae3_knic_private_info { struct net_device *netdev; /* Set by KNIC client when init instance */ u16 rss_size; /* Allocated RSS queues */ @@ -809,6 +811,8 @@ struct hnae3_knic_private_info { struct hnae3_tc_info tc_info; u8 tc_map_mode; + u8 dscp_app_cnt; + u8 dscp_prio[HNAE3_MAX_DSCP]; 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_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c index db09954..39b75b6 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c @@ -2987,22 +2987,19 @@ static u16 hns3_nic_select_queue(struct net_device *netdev, struct net_device *sb_dev) { struct hnae3_handle *h = hns3_get_handle(netdev); - u8 dscp, priority; - int ret; + u8 dscp; if (h->kinfo.tc_map_mode != HNAE3_TC_MAP_MODE_DSCP || !h->ae_algo->ops->get_dscp_prio) goto out; dscp = hns3_get_skb_dscp(skb); - if (unlikely(dscp == HNS3_INVALID_DSCP)) - goto out; - - ret = h->ae_algo->ops->get_dscp_prio(h, dscp, NULL, &priority); - if (ret) + if (unlikely(dscp >= HNAE3_MAX_DSCP)) goto out; - skb->priority = priority; + skb->priority = h->kinfo.dscp_prio[dscp]; + if (skb->priority == HNAE3_PRIO_ID_INVALID) + skb->priority = 0; out: return netdev_pick_tx(netdev, skb, sb_dev); diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c index fbb159f..c4aded6 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c @@ -368,14 +368,14 @@ static int hclge_ieee_setapp(struct hnae3_handle *h, struct dcb_app *app) int ret; if (app->selector != IEEE_8021QAZ_APP_SEL_DSCP || - app->protocol >= HCLGE_MAX_DSCP || + app->protocol >= HNAE3_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]) + if (app->priority == h->kinfo.dscp_prio[app->protocol]) return 0; ret = dcb_ieee_setapp(netdev, app); @@ -384,21 +384,21 @@ static int hclge_ieee_setapp(struct hnae3_handle *h, struct dcb_app *app) old_app.selector = IEEE_8021QAZ_APP_SEL_DSCP; old_app.protocol = app->protocol; - old_app.priority = hdev->tm_info.dscp_prio[app->protocol]; + old_app.priority = h->kinfo.dscp_prio[app->protocol]; - hdev->tm_info.dscp_prio[app->protocol] = app->priority; + h->kinfo.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; + h->kinfo.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++; + if (old_app.priority == HNAE3_PRIO_ID_INVALID) + h->kinfo.dscp_app_cnt++; else ret = dcb_ieee_delapp(netdev, &old_app); @@ -413,9 +413,9 @@ static int hclge_ieee_delapp(struct hnae3_handle *h, struct dcb_app *app) int ret; if (app->selector != IEEE_8021QAZ_APP_SEL_DSCP || - app->protocol >= HCLGE_MAX_DSCP || + app->protocol >= HNAE3_MAX_DSCP || app->priority >= HNAE3_MAX_USER_PRIO || - app->priority != hdev->tm_info.dscp_prio[app->protocol]) + app->priority != h->kinfo.dscp_prio[app->protocol]) return -EINVAL; dev_info(&hdev->pdev->dev, "delapp dscp=%u priority=%u\n", @@ -425,20 +425,20 @@ static int hclge_ieee_delapp(struct hnae3_handle *h, struct dcb_app *app) if (ret) return ret; - hdev->tm_info.dscp_prio[app->protocol] = HCLGE_PRIO_ID_INVALID; + h->kinfo.dscp_prio[app->protocol] = HNAE3_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; + h->kinfo.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 (h->kinfo.dscp_app_cnt) + h->kinfo.dscp_app_cnt--; - if (!hdev->tm_info.dscp_app_cnt) { + if (!h->kinfo.dscp_app_cnt) { vport->nic.kinfo.tc_map_mode = HNAE3_TC_MAP_MODE_PRIO; ret = hclge_up_to_tc_map(hdev); } diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c index 55f696d..142415c 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c @@ -1158,17 +1158,18 @@ static int hclge_dbg_dump_qos_pri_map(struct hclge_dev *hdev, char *buf, static int hclge_dbg_dump_qos_dscp_map(struct hclge_dev *hdev, char *buf, int len) { + struct hnae3_knic_private_info *kinfo = &hdev->vport[0].nic.kinfo; struct hclge_desc desc[HCLGE_DSCP_MAP_TC_BD_NUM]; u8 *req0 = (u8 *)desc[0].data; u8 *req1 = (u8 *)desc[1].data; - u8 dscp_tc[HCLGE_MAX_DSCP]; + u8 dscp_tc[HNAE3_MAX_DSCP]; int pos, ret; u8 i, j; pos = scnprintf(buf, len, "tc map mode: %s\n", - tc_map_mode_str[hdev->vport[0].nic.kinfo.tc_map_mode]); + tc_map_mode_str[kinfo->tc_map_mode]); - if (hdev->vport[0].nic.kinfo.tc_map_mode != HNAE3_TC_MAP_MODE_DSCP) + if (kinfo->tc_map_mode != HNAE3_TC_MAP_MODE_DSCP) return 0; hclge_cmd_setup_basic_desc(&desc[0], HCLGE_OPC_QOS_MAP, true); @@ -1184,8 +1185,8 @@ static int hclge_dbg_dump_qos_dscp_map(struct hclge_dev *hdev, char *buf, pos += scnprintf(buf + pos, len - pos, "\nDSCP PRIO TC\n"); /* 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++) { - j = i + HCLGE_MAX_DSCP / HCLGE_DSCP_MAP_TC_BD_NUM; + for (i = 0; i < HNAE3_MAX_DSCP / HCLGE_DSCP_MAP_TC_BD_NUM; i++) { + j = i + HNAE3_MAX_DSCP / HCLGE_DSCP_MAP_TC_BD_NUM; /* Each dscp setting has 4 bits, so each byte saves two dscp * setting */ @@ -1195,12 +1196,12 @@ static int hclge_dbg_dump_qos_dscp_map(struct hclge_dev *hdev, char *buf, dscp_tc[j] &= HCLGE_DBG_TC_MASK; } - for (i = 0; i < HCLGE_MAX_DSCP; i++) { - if (hdev->tm_info.dscp_prio[i] == HCLGE_PRIO_ID_INVALID) + for (i = 0; i < HNAE3_MAX_DSCP; i++) { + if (kinfo->dscp_prio[i] == HNAE3_PRIO_ID_INVALID) continue; pos += scnprintf(buf + pos, len - pos, " %2u %u %u\n", - i, hdev->tm_info.dscp_prio[i], dscp_tc[i]); + i, kinfo->dscp_prio[i], dscp_tc[i]); } return 0; diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c index d7278d9..6643680 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c @@ -12981,17 +12981,14 @@ 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) + if (dscp >= HNAE3_MAX_DSCP) return -EINVAL; if (tc_mode) - *tc_mode = vport->nic.kinfo.tc_map_mode; + *tc_mode = h->kinfo.tc_map_mode; if (priority) - *priority = hdev->tm_info.dscp_prio[dscp] == HCLGE_PRIO_ID_INVALID ? 0 : - hdev->tm_info.dscp_prio[dscp]; + *priority = h->kinfo.dscp_prio[dscp] == HNAE3_PRIO_ID_INVALID ? 0 : + h->kinfo.dscp_prio[dscp]; return 0; } diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h index 163240a..495b639 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h @@ -351,15 +351,11 @@ 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 7630d1f..4a33f65 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c @@ -271,9 +271,9 @@ 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; + hdev->vport[0].nic.kinfo.dscp_app_cnt = 0; + for (i = 0; i < HNAE3_MAX_DSCP; i++) + hdev->vport[0].nic.kinfo.dscp_prio[i] = HNAE3_PRIO_ID_INVALID; } int hclge_dscp_to_tc_map(struct hclge_dev *hdev) @@ -288,18 +288,18 @@ int hclge_dscp_to_tc_map(struct hclge_dev *hdev) 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; + for (i = 0; i < HNAE3_MAX_DSCP / HCLGE_DSCP_MAP_TC_BD_NUM; i++) { + pri_id = hdev->vport[0].nic.kinfo.dscp_prio[i]; + pri_id = pri_id == HNAE3_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; + j = i + HNAE3_MAX_DSCP / HCLGE_DSCP_MAP_TC_BD_NUM; + pri_id = hdev->vport[0].nic.kinfo.dscp_prio[j]; + pri_id = pri_id == HNAE3_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); } -- 2.7.4