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Message-ID: <1614666475-13059-4-git-send-email-tanhuazhong@huawei.com>
Date: Tue, 2 Mar 2021 14:27:49 +0800
From: Huazhong Tan <tanhuazhong@...wei.com>
To: <davem@...emloft.net>, <kuba@...nel.org>
CC: <netdev@...r.kernel.org>, <salil.mehta@...wei.com>,
<yisen.zhuang@...wei.com>, <huangdaode@...wei.com>,
<linuxarm@...neuler.org>, Jian Shen <shenjian15@...wei.com>,
Huazhong Tan <tanhuazhong@...wei.com>
Subject: [RFC net-next 3/9] net: hns3: refactor for function hclge_fd_convert_tuple
From: Jian Shen <shenjian15@...wei.com>
Currently, there are too many branches for hclge_fd_convert_tuple().
And it may be more when add new tuples. Refactor it by sorting the
tuples according to their length. So it only needs several KEY_OPT
now, and being flexible to add new tuples.
Signed-off-by: Jian Shen <shenjian15@...wei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@...wei.com>
---
.../ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 189 +++++++++------------
.../ethernet/hisilicon/hns3/hns3pf/hclge_main.h | 12 ++
2 files changed, 97 insertions(+), 104 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 8d313d5..8a3a2eb 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -384,36 +384,56 @@ static const struct key_info meta_data_key_info[] = {
};
static const struct key_info tuple_key_info[] = {
- { OUTER_DST_MAC, 48},
- { OUTER_SRC_MAC, 48},
- { OUTER_VLAN_TAG_FST, 16},
- { OUTER_VLAN_TAG_SEC, 16},
- { OUTER_ETH_TYPE, 16},
- { OUTER_L2_RSV, 16},
- { OUTER_IP_TOS, 8},
- { OUTER_IP_PROTO, 8},
- { OUTER_SRC_IP, 32},
- { OUTER_DST_IP, 32},
- { OUTER_L3_RSV, 16},
- { OUTER_SRC_PORT, 16},
- { OUTER_DST_PORT, 16},
- { OUTER_L4_RSV, 32},
- { OUTER_TUN_VNI, 24},
- { OUTER_TUN_FLOW_ID, 8},
- { INNER_DST_MAC, 48},
- { INNER_SRC_MAC, 48},
- { INNER_VLAN_TAG_FST, 16},
- { INNER_VLAN_TAG_SEC, 16},
- { INNER_ETH_TYPE, 16},
- { INNER_L2_RSV, 16},
- { INNER_IP_TOS, 8},
- { INNER_IP_PROTO, 8},
- { INNER_SRC_IP, 32},
- { INNER_DST_IP, 32},
- { INNER_L3_RSV, 16},
- { INNER_SRC_PORT, 16},
- { INNER_DST_PORT, 16},
- { INNER_L4_RSV, 32},
+ { OUTER_DST_MAC, 48, KEY_OPT_MAC, -1, -1 },
+ { OUTER_SRC_MAC, 48, KEY_OPT_MAC, -1, -1 },
+ { OUTER_VLAN_TAG_FST, 16, KEY_OPT_LE16, -1, -1 },
+ { OUTER_VLAN_TAG_SEC, 16, KEY_OPT_LE16, -1, -1 },
+ { OUTER_ETH_TYPE, 16, KEY_OPT_LE16, -1, -1 },
+ { OUTER_L2_RSV, 16, KEY_OPT_LE16, -1, -1 },
+ { OUTER_IP_TOS, 8, KEY_OPT_U8, -1, -1 },
+ { OUTER_IP_PROTO, 8, KEY_OPT_U8, -1, -1 },
+ { OUTER_SRC_IP, 32, KEY_OPT_IP, -1, -1 },
+ { OUTER_DST_IP, 32, KEY_OPT_IP, -1, -1 },
+ { OUTER_L3_RSV, 16, KEY_OPT_LE16, -1, -1 },
+ { OUTER_SRC_PORT, 16, KEY_OPT_LE16, -1, -1 },
+ { OUTER_DST_PORT, 16, KEY_OPT_LE16, -1, -1 },
+ { OUTER_L4_RSV, 32, KEY_OPT_LE32, -1, -1 },
+ { OUTER_TUN_VNI, 24, KEY_OPT_VNI, -1, -1 },
+ { OUTER_TUN_FLOW_ID, 8, KEY_OPT_U8, -1, -1 },
+ { INNER_DST_MAC, 48, KEY_OPT_MAC,
+ offsetof(struct hclge_fd_rule, tuples.dst_mac),
+ offsetof(struct hclge_fd_rule, tuples_mask.dst_mac) },
+ { INNER_SRC_MAC, 48, KEY_OPT_MAC,
+ offsetof(struct hclge_fd_rule, tuples.src_mac),
+ offsetof(struct hclge_fd_rule, tuples_mask.src_mac) },
+ { INNER_VLAN_TAG_FST, 16, KEY_OPT_LE16,
+ offsetof(struct hclge_fd_rule, tuples.vlan_tag1),
+ offsetof(struct hclge_fd_rule, tuples_mask.vlan_tag1) },
+ { INNER_VLAN_TAG_SEC, 16, KEY_OPT_LE16, -1, -1 },
+ { INNER_ETH_TYPE, 16, KEY_OPT_LE16,
+ offsetof(struct hclge_fd_rule, tuples.ether_proto),
+ offsetof(struct hclge_fd_rule, tuples_mask.ether_proto) },
+ { INNER_L2_RSV, 16, KEY_OPT_LE16, -1, -1 },
+ { INNER_IP_TOS, 8, KEY_OPT_U8,
+ offsetof(struct hclge_fd_rule, tuples.ip_tos),
+ offsetof(struct hclge_fd_rule, tuples_mask.ip_tos) },
+ { INNER_IP_PROTO, 8, KEY_OPT_U8,
+ offsetof(struct hclge_fd_rule, tuples.ip_proto),
+ offsetof(struct hclge_fd_rule, tuples_mask.ip_proto) },
+ { INNER_SRC_IP, 32, KEY_OPT_IP,
+ offsetof(struct hclge_fd_rule, tuples.src_ip),
+ offsetof(struct hclge_fd_rule, tuples_mask.src_ip) },
+ { INNER_DST_IP, 32, KEY_OPT_IP,
+ offsetof(struct hclge_fd_rule, tuples.dst_ip),
+ offsetof(struct hclge_fd_rule, tuples_mask.dst_ip) },
+ { INNER_L3_RSV, 16, KEY_OPT_LE16, -1, -1 },
+ { INNER_SRC_PORT, 16, KEY_OPT_LE16,
+ offsetof(struct hclge_fd_rule, tuples.src_port),
+ offsetof(struct hclge_fd_rule, tuples_mask.src_port) },
+ { INNER_DST_PORT, 16, KEY_OPT_LE16,
+ offsetof(struct hclge_fd_rule, tuples.dst_port),
+ offsetof(struct hclge_fd_rule, tuples_mask.dst_port) },
+ { INNER_L4_RSV, 32, KEY_OPT_LE32, -1, -1 },
};
static int hclge_mac_update_stats_defective(struct hclge_dev *hdev)
@@ -5225,96 +5245,57 @@ static int hclge_fd_ad_config(struct hclge_dev *hdev, u8 stage, int loc,
static bool hclge_fd_convert_tuple(u32 tuple_bit, u8 *key_x, u8 *key_y,
struct hclge_fd_rule *rule)
{
+ int offset, moffset, ip_offset;
+ enum HCLGE_FD_KEY_OPT key_opt;
u16 tmp_x_s, tmp_y_s;
u32 tmp_x_l, tmp_y_l;
+ u8 *p = (u8 *)rule;
int i;
- if (rule->unused_tuple & tuple_bit)
+ if (rule->unused_tuple & BIT(tuple_bit))
return true;
- switch (tuple_bit) {
- case BIT(INNER_DST_MAC):
- for (i = 0; i < ETH_ALEN; i++) {
- calc_x(key_x[ETH_ALEN - 1 - i], rule->tuples.dst_mac[i],
- rule->tuples_mask.dst_mac[i]);
- calc_y(key_y[ETH_ALEN - 1 - i], rule->tuples.dst_mac[i],
- rule->tuples_mask.dst_mac[i]);
- }
+ key_opt = tuple_key_info[tuple_bit].key_opt;
+ offset = tuple_key_info[tuple_bit].offset;
+ moffset = tuple_key_info[tuple_bit].moffset;
- return true;
- case BIT(INNER_SRC_MAC):
- for (i = 0; i < ETH_ALEN; i++) {
- calc_x(key_x[ETH_ALEN - 1 - i], rule->tuples.src_mac[i],
- rule->tuples.src_mac[i]);
- calc_y(key_y[ETH_ALEN - 1 - i], rule->tuples.src_mac[i],
- rule->tuples.src_mac[i]);
- }
+ switch (key_opt) {
+ case KEY_OPT_U8:
+ calc_x(*key_x, p[offset], p[moffset]);
+ calc_y(*key_y, p[offset], p[moffset]);
return true;
- case BIT(INNER_VLAN_TAG_FST):
- calc_x(tmp_x_s, rule->tuples.vlan_tag1,
- rule->tuples_mask.vlan_tag1);
- calc_y(tmp_y_s, rule->tuples.vlan_tag1,
- rule->tuples_mask.vlan_tag1);
+ case KEY_OPT_LE16:
+ calc_x(tmp_x_s, *(u16 *)(&p[offset]), *(u16 *)(&p[moffset]));
+ calc_y(tmp_y_s, *(u16 *)(&p[offset]), *(u16 *)(&p[moffset]));
*(__le16 *)key_x = cpu_to_le16(tmp_x_s);
*(__le16 *)key_y = cpu_to_le16(tmp_y_s);
return true;
- case BIT(INNER_ETH_TYPE):
- calc_x(tmp_x_s, rule->tuples.ether_proto,
- rule->tuples_mask.ether_proto);
- calc_y(tmp_y_s, rule->tuples.ether_proto,
- rule->tuples_mask.ether_proto);
- *(__le16 *)key_x = cpu_to_le16(tmp_x_s);
- *(__le16 *)key_y = cpu_to_le16(tmp_y_s);
-
- return true;
- case BIT(INNER_IP_TOS):
- calc_x(*key_x, rule->tuples.ip_tos, rule->tuples_mask.ip_tos);
- calc_y(*key_y, rule->tuples.ip_tos, rule->tuples_mask.ip_tos);
-
- return true;
- case BIT(INNER_IP_PROTO):
- calc_x(*key_x, rule->tuples.ip_proto,
- rule->tuples_mask.ip_proto);
- calc_y(*key_y, rule->tuples.ip_proto,
- rule->tuples_mask.ip_proto);
-
- return true;
- case BIT(INNER_SRC_IP):
- calc_x(tmp_x_l, rule->tuples.src_ip[IPV4_INDEX],
- rule->tuples_mask.src_ip[IPV4_INDEX]);
- calc_y(tmp_y_l, rule->tuples.src_ip[IPV4_INDEX],
- rule->tuples_mask.src_ip[IPV4_INDEX]);
+ case KEY_OPT_LE32:
+ calc_x(tmp_x_l, *(u32 *)(&p[offset]), *(u32 *)(&p[moffset]));
+ calc_y(tmp_y_l, *(u32 *)(&p[offset]), *(u32 *)(&p[moffset]));
*(__le32 *)key_x = cpu_to_le32(tmp_x_l);
*(__le32 *)key_y = cpu_to_le32(tmp_y_l);
return true;
- case BIT(INNER_DST_IP):
- calc_x(tmp_x_l, rule->tuples.dst_ip[IPV4_INDEX],
- rule->tuples_mask.dst_ip[IPV4_INDEX]);
- calc_y(tmp_y_l, rule->tuples.dst_ip[IPV4_INDEX],
- rule->tuples_mask.dst_ip[IPV4_INDEX]);
- *(__le32 *)key_x = cpu_to_le32(tmp_x_l);
- *(__le32 *)key_y = cpu_to_le32(tmp_y_l);
-
- return true;
- case BIT(INNER_SRC_PORT):
- calc_x(tmp_x_s, rule->tuples.src_port,
- rule->tuples_mask.src_port);
- calc_y(tmp_y_s, rule->tuples.src_port,
- rule->tuples_mask.src_port);
- *(__le16 *)key_x = cpu_to_le16(tmp_x_s);
- *(__le16 *)key_y = cpu_to_le16(tmp_y_s);
+ case KEY_OPT_MAC:
+ for (i = 0; i < ETH_ALEN; i++) {
+ calc_x(key_x[ETH_ALEN - 1 - i], p[offset + i],
+ p[moffset + i]);
+ calc_y(key_y[ETH_ALEN - 1 - i], p[offset + i],
+ p[moffset + i]);
+ }
return true;
- case BIT(INNER_DST_PORT):
- calc_x(tmp_x_s, rule->tuples.dst_port,
- rule->tuples_mask.dst_port);
- calc_y(tmp_y_s, rule->tuples.dst_port,
- rule->tuples_mask.dst_port);
- *(__le16 *)key_x = cpu_to_le16(tmp_x_s);
- *(__le16 *)key_y = cpu_to_le16(tmp_y_s);
+ case KEY_OPT_IP:
+ ip_offset = IPV4_INDEX * sizeof(u32);
+ calc_x(tmp_x_l, *(u32 *)(&p[offset + ip_offset]),
+ *(u32 *)(&p[moffset + ip_offset]));
+ calc_y(tmp_y_l, *(u32 *)(&p[offset + ip_offset]),
+ *(u32 *)(&p[moffset + ip_offset]));
+ *(__le32 *)key_x = cpu_to_le32(tmp_x_l);
+ *(__le32 *)key_y = cpu_to_le32(tmp_y_l);
return true;
default:
@@ -5402,12 +5383,12 @@ static int hclge_config_key(struct hclge_dev *hdev, u8 stage,
for (i = 0 ; i < MAX_TUPLE; i++) {
bool tuple_valid;
- u32 check_tuple;
tuple_size = tuple_key_info[i].key_length / 8;
- check_tuple = key_cfg->tuple_active & BIT(i);
+ if (!(key_cfg->tuple_active & BIT(i)))
+ continue;
- tuple_valid = hclge_fd_convert_tuple(check_tuple, cur_key_x,
+ tuple_valid = hclge_fd_convert_tuple(i, cur_key_x,
cur_key_y, rule);
if (tuple_valid) {
cur_key_x += tuple_size;
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
index 19d7f28..6fe7455 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
@@ -548,9 +548,21 @@ enum HCLGE_FD_META_DATA {
MAX_META_DATA,
};
+enum HCLGE_FD_KEY_OPT {
+ KEY_OPT_U8,
+ KEY_OPT_LE16,
+ KEY_OPT_LE32,
+ KEY_OPT_MAC,
+ KEY_OPT_IP,
+ KEY_OPT_VNI,
+};
+
struct key_info {
u8 key_type;
u8 key_length; /* use bit as unit */
+ enum HCLGE_FD_KEY_OPT key_opt;
+ int offset;
+ int moffset;
};
#define MAX_KEY_LENGTH 400
--
2.7.4
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