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net: hns3: Add new RSS hash algorithm support for PF

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This patch adds ETH_RSS_HASH_XOR hash algorithm supports, which
is supported by hw revision 0x21.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jian Shen 2018-10-10 20:05:34 +01:00 committed by David S. Miller
parent 9047fa5d32
commit 775501a1aa
2 changed files with 30 additions and 10 deletions
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9
drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
View File

@ -678,12 +678,13 @@ static int hns3_set_rss(struct net_device *netdev, const u32 *indir,
if (!h->ae_algo || !h->ae_algo->ops || !h->ae_algo->ops->set_rss)
return -EOPNOTSUPP;
/* currently we only support Toeplitz hash */
if ((hfunc != ETH_RSS_HASH_NO_CHANGE) && (hfunc != ETH_RSS_HASH_TOP)) {
netdev_err(netdev,
"hash func not supported (only Toeplitz hash)\n");
if ((h->pdev->revision == 0x20 &&
hfunc != ETH_RSS_HASH_TOP) || (hfunc != ETH_RSS_HASH_NO_CHANGE &&
hfunc != ETH_RSS_HASH_TOP && hfunc != ETH_RSS_HASH_XOR)) {
netdev_err(netdev, "hash func not supported\n");
return -EOPNOTSUPP;
}
if (!indir) {
netdev_err(netdev,
"set rss failed for indir is empty\n");

31
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
View File

@ -2806,8 +2806,19 @@ static int hclge_get_rss(struct hnae3_handle *handle, u32 *indir,
int i;
/* Get hash algorithm */
if (hfunc)
*hfunc = vport->rss_algo;
if (hfunc) {
switch (vport->rss_algo) {
case HCLGE_RSS_HASH_ALGO_TOEPLITZ:
*hfunc = ETH_RSS_HASH_TOP;
break;
case HCLGE_RSS_HASH_ALGO_SIMPLE:
*hfunc = ETH_RSS_HASH_XOR;
break;
default:
*hfunc = ETH_RSS_HASH_UNKNOWN;
break;
}
}
/* Get the RSS Key required by the user */
if (key)
@ -2831,12 +2842,20 @@ static int hclge_set_rss(struct hnae3_handle *handle, const u32 *indir,
/* Set the RSS Hash Key if specififed by the user */
if (key) {
if (hfunc == ETH_RSS_HASH_TOP ||
hfunc == ETH_RSS_HASH_NO_CHANGE)
switch (hfunc) {
case ETH_RSS_HASH_TOP:
hash_algo = HCLGE_RSS_HASH_ALGO_TOEPLITZ;
else
break;
case ETH_RSS_HASH_XOR:
hash_algo = HCLGE_RSS_HASH_ALGO_SIMPLE;
break;
case ETH_RSS_HASH_NO_CHANGE:
hash_algo = vport->rss_algo;
break;
default:
return -EINVAL;
}
ret = hclge_set_rss_algo_key(hdev, hash_algo, key);
if (ret)
return ret;