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net: hns3: fix get VF RSS issue

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For revision 0x20, VF shares the same RSS config with PF.
In original codes, it always return 0 when query RSS hash
key for VF. This patch fixes it by return the hash key
got from PF.

Fixes: 374ad29176 ("net: hns3: net: hns3: Add RSS general configuration support for VF")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@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 2019-02-23 17:22:17 +08:00 committed by David S. Miller
parent 30ebc576d7
commit a638b1d8cc
2 changed files with 74 additions and 1 deletions
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25
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c
View File

@ -490,6 +490,24 @@ static int hclge_get_queue_id_in_pf(struct hclge_vport *vport,
return hclge_gen_resp_to_vf(vport, mbx_req, 0, resp_data, 2);
}
static int hclge_get_rss_key(struct hclge_vport *vport,
struct hclge_mbx_vf_to_pf_cmd *mbx_req)
{
#define HCLGE_RSS_MBX_RESP_LEN 8
u8 resp_data[HCLGE_RSS_MBX_RESP_LEN];
struct hclge_dev *hdev = vport->back;
u8 index;
index = mbx_req->msg[2];
memcpy(&resp_data[0],
&hdev->vport[0].rss_hash_key[index * HCLGE_RSS_MBX_RESP_LEN],
HCLGE_RSS_MBX_RESP_LEN);
return hclge_gen_resp_to_vf(vport, mbx_req, 0, resp_data,
HCLGE_RSS_MBX_RESP_LEN);
}
static bool hclge_cmd_crq_empty(struct hclge_hw *hw)
{
u32 tail = hclge_read_dev(hw, HCLGE_NIC_CRQ_TAIL_REG);
@ -625,6 +643,13 @@ void hclge_mbx_handler(struct hclge_dev *hdev)
"PF failed(%d) to get qid for VF\n",
ret);
break;
case HCLGE_MBX_GET_RSS_KEY:
ret = hclge_get_rss_key(vport, req);
if (ret)
dev_err(&hdev->pdev->dev,
"PF fail(%d) to get rss key for VF\n",
ret);
break;
case HCLGE_MBX_GET_LINK_MODE:
hclge_get_link_mode(vport, req);
break;

50
drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
View File

@ -620,12 +620,50 @@ static int hclgevf_set_rss_tc_mode(struct hclgevf_dev *hdev, u16 rss_size)
return status;
}
/* for revision 0x20, vf shared the same rss config with pf */
static int hclgevf_get_rss_hash_key(struct hclgevf_dev *hdev)
{
#define HCLGEVF_RSS_MBX_RESP_LEN 8
struct hclgevf_rss_cfg *rss_cfg = &hdev->rss_cfg;
u8 resp_msg[HCLGEVF_RSS_MBX_RESP_LEN];
u16 msg_num, hash_key_index;
u8 index;
int ret;
msg_num = (HCLGEVF_RSS_KEY_SIZE + HCLGEVF_RSS_MBX_RESP_LEN - 1) /
HCLGEVF_RSS_MBX_RESP_LEN;
for (index = 0; index < msg_num; index++) {
ret = hclgevf_send_mbx_msg(hdev, HCLGE_MBX_GET_RSS_KEY, 0,
&index, sizeof(index),
true, resp_msg,
HCLGEVF_RSS_MBX_RESP_LEN);
if (ret) {
dev_err(&hdev->pdev->dev,
"VF get rss hash key from PF failed, ret=%d",
ret);
return ret;
}
hash_key_index = HCLGEVF_RSS_MBX_RESP_LEN * index;
if (index == msg_num - 1)
memcpy(&rss_cfg->rss_hash_key[hash_key_index],
&resp_msg[0],
HCLGEVF_RSS_KEY_SIZE - hash_key_index);
else
memcpy(&rss_cfg->rss_hash_key[hash_key_index],
&resp_msg[0], HCLGEVF_RSS_MBX_RESP_LEN);
}
return 0;
}
static int hclgevf_get_rss(struct hnae3_handle *handle, u32 *indir, u8 *key,
u8 *hfunc)
{
struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
struct hclgevf_rss_cfg *rss_cfg = &hdev->rss_cfg;
int i;
int i, ret;
if (handle->pdev->revision >= 0x21) {
/* Get hash algorithm */
@ -647,6 +685,16 @@ static int hclgevf_get_rss(struct hnae3_handle *handle, u32 *indir, u8 *key,
if (key)
memcpy(key, rss_cfg->rss_hash_key,
HCLGEVF_RSS_KEY_SIZE);
} else {
if (hfunc)
*hfunc = ETH_RSS_HASH_TOP;
if (key) {
ret = hclgevf_get_rss_hash_key(hdev);
if (ret)
return ret;
memcpy(key, rss_cfg->rss_hash_key,
HCLGEVF_RSS_KEY_SIZE);
}
}
if (indir)