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net: hns3: optimize converting dscp to priority process of hns3_nic_select_queue()

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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 <huangguangbin2@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Guangbin Huang 2022-09-16 10:38:01 +08:00 committed by Jakub Kicinski
parent 04b6ba1435
commit dfea275e06
7 changed files with 45 additions and 50 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/ethernet/hisilicon/hns3/hnae3.h
View File

@ -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 */

13
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
View File

@ -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))
if (unlikely(dscp >= HNAE3_MAX_DSCP))
goto out;
ret = h->ae_algo->ops->get_dscp_prio(h, dscp, NULL, &priority);
if (ret)
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);

28
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
View File

@ -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);
}

17
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
View File

@ -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;

11
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
View File

@ -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;
}

4
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
View File

@ -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;

18
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
View File

@ -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);
}