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net: hns3: refactor out hclgevf_get_rss_tuple() 

To improve code readability and maintainability, separate
the flow type parsing part and the converting part from
bloated hclgevf_get_rss_tuple().

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jian Shen 2021-02-12 11:21:07 +08:00 committed by David S. Miller
parent 405642a15c
commit 73f7767ed0
1 changed files with 55 additions and 38 deletions
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93
drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
View File

@ -954,56 +954,73 @@ static int hclgevf_set_rss_tuple(struct hnae3_handle *handle,
return 0;
}
static int hclgevf_get_rss_tuple_by_flow_type(struct hclgevf_dev *hdev,
int flow_type, u8 *tuple_sets)
{
switch (flow_type) {
case TCP_V4_FLOW:
*tuple_sets = hdev->rss_cfg.rss_tuple_sets.ipv4_tcp_en;
break;
case UDP_V4_FLOW:
*tuple_sets = hdev->rss_cfg.rss_tuple_sets.ipv4_udp_en;
break;
case TCP_V6_FLOW:
*tuple_sets = hdev->rss_cfg.rss_tuple_sets.ipv6_tcp_en;
break;
case UDP_V6_FLOW:
*tuple_sets = hdev->rss_cfg.rss_tuple_sets.ipv6_udp_en;
break;
case SCTP_V4_FLOW:
*tuple_sets = hdev->rss_cfg.rss_tuple_sets.ipv4_sctp_en;
break;
case SCTP_V6_FLOW:
*tuple_sets = hdev->rss_cfg.rss_tuple_sets.ipv6_sctp_en;
break;
case IPV4_FLOW:
case IPV6_FLOW:
*tuple_sets = HCLGEVF_S_IP_BIT | HCLGEVF_D_IP_BIT;
break;
default:
return -EINVAL;
}
return 0;
}
static u64 hclgevf_convert_rss_tuple(u8 tuple_sets)
{
u64 tuple_data = 0;
if (tuple_sets & HCLGEVF_D_PORT_BIT)
tuple_data |= RXH_L4_B_2_3;
if (tuple_sets & HCLGEVF_S_PORT_BIT)
tuple_data |= RXH_L4_B_0_1;
if (tuple_sets & HCLGEVF_D_IP_BIT)
tuple_data |= RXH_IP_DST;
if (tuple_sets & HCLGEVF_S_IP_BIT)
tuple_data |= RXH_IP_SRC;
return tuple_data;
}
static int hclgevf_get_rss_tuple(struct hnae3_handle *handle,
struct ethtool_rxnfc *nfc)
{
struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
struct hclgevf_rss_cfg *rss_cfg = &hdev->rss_cfg;
u8 tuple_sets;
int ret;
if (hdev->ae_dev->dev_version < HNAE3_DEVICE_VERSION_V2)
return -EOPNOTSUPP;
nfc->data = 0;
switch (nfc->flow_type) {
case TCP_V4_FLOW:
tuple_sets = rss_cfg->rss_tuple_sets.ipv4_tcp_en;
break;
case UDP_V4_FLOW:
tuple_sets = rss_cfg->rss_tuple_sets.ipv4_udp_en;
break;
case TCP_V6_FLOW:
tuple_sets = rss_cfg->rss_tuple_sets.ipv6_tcp_en;
break;
case UDP_V6_FLOW:
tuple_sets = rss_cfg->rss_tuple_sets.ipv6_udp_en;
break;
case SCTP_V4_FLOW:
tuple_sets = rss_cfg->rss_tuple_sets.ipv4_sctp_en;
break;
case SCTP_V6_FLOW:
tuple_sets = rss_cfg->rss_tuple_sets.ipv6_sctp_en;
break;
case IPV4_FLOW:
case IPV6_FLOW:
tuple_sets = HCLGEVF_S_IP_BIT | HCLGEVF_D_IP_BIT;
break;
default:
return -EINVAL;
}
ret = hclgevf_get_rss_tuple_by_flow_type(hdev, nfc->flow_type,
&tuple_sets);
if (ret || !tuple_sets)
return ret;
if (!tuple_sets)
return 0;
if (tuple_sets & HCLGEVF_D_PORT_BIT)
nfc->data |= RXH_L4_B_2_3;
if (tuple_sets & HCLGEVF_S_PORT_BIT)
nfc->data |= RXH_L4_B_0_1;
if (tuple_sets & HCLGEVF_D_IP_BIT)
nfc->data |= RXH_IP_DST;
if (tuple_sets & HCLGEVF_S_IP_BIT)
nfc->data |= RXH_IP_SRC;
nfc->data = hclgevf_convert_rss_tuple(tuple_sets);
return 0;
}