diff options
| author |  Xue Chaojing <xuechaojing@huawei.com>
| 2018-11-20 05:47:32 +0000 |
|---|---|---|
| committer |  David S. Miller <davem@davemloft.net>
| 2018-11-20 10:38:08 -0800 |
| commit | 4a61abb100c8a647959147034f60e9fce17ce9af (patch) | |
| tree | 22cb4e021ce58dc605f0fef411f961a69cf55bef /drivers/net/ethernet/huawei/hinic/hinic_port.c | |
| parent | net-next/hinic:replace multiply and division operators (diff) | |
| download | linux-4a61abb100c8a647959147034f60e9fce17ce9af.tar.gz linux-4a61abb100c8a647959147034f60e9fce17ce9af.tar.bz2 linux-4a61abb100c8a647959147034f60e9fce17ce9af.zip | |
net-next/hinic:add rx checksum offload for HiNIC
In order to improve performance, this patch adds rx checksum offload
for the HiNIC driver. Performance test(Iperf) shows more than 80%
improvement in TCP streams.
Signed-off-by: Xue Chaojing <xuechaojing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/huawei/hinic/hinic_port.c')
| -rw-r--r-- | drivers/net/ethernet/huawei/hinic/hinic_port.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/net/ethernet/huawei/hinic/hinic_port.c b/drivers/net/ethernet/huawei/hinic/hinic_port.c index 7575a7d3bd9f..e9f76e904610 100644 --- a/drivers/net/ethernet/huawei/hinic/hinic_port.c +++ b/drivers/net/ethernet/huawei/hinic/hinic_port.c @@ -409,3 +409,31 @@ int hinic_port_set_tso(struct hinic_dev *nic_dev, enum hinic_tso_state state) return 0; } + +int hinic_set_rx_csum_offload(struct hinic_dev *nic_dev, u32 en) +{ + struct hinic_checksum_offload rx_csum_cfg = {0}; + struct hinic_hwdev *hwdev = nic_dev->hwdev; + struct hinic_hwif *hwif = hwdev->hwif; + struct pci_dev *pdev = hwif->pdev; + u16 out_size; + int err; + + if (!hwdev) + return -EINVAL; + + rx_csum_cfg.func_id = HINIC_HWIF_FUNC_IDX(hwif); + rx_csum_cfg.rx_csum_offload = en; + + err = hinic_port_msg_cmd(hwdev, HINIC_PORT_CMD_SET_RX_CSUM, + &rx_csum_cfg, sizeof(rx_csum_cfg), + &rx_csum_cfg, &out_size); + if (err || !out_size || rx_csum_cfg.status) { + dev_err(&pdev->dev, + "Failed to set rx csum offload, ret = %d\n", + rx_csum_cfg.status); + return -EINVAL; + } + + return 0; +} |