diff options
| author | Arthur Kiyanovski <akiyano@amazon.com> | 2020-02-11 15:17:49 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-03-11 07:53:07 +0100 |
| commit | 41df68570b7ea89a537e5bd9c77cc4d7e2491cf9 (patch) | |
| tree | 68f10823cd69bbba3ad626ea5d832f23a88c6f3f /drivers/net | |
| parent | 4cf7fd81746977436b82a94dd897ecd85fb47a71 (diff) | |
net: ena: make ena rxfh support ETH_RSS_HASH_NO_CHANGE
commit 470793a78ce344bd53d31e0c2d537f71ba957547 upstream.
As the name suggests ETH_RSS_HASH_NO_CHANGE is received upon changing
the key or indirection table using ethtool while keeping the same hash
function.
Also add a function for retrieving the current hash function from
the ena-com layer.
Fixes: 1738cd3ed342 ("net: ena: Add a driver for Amazon Elastic Network Adapters (ENA)")
Signed-off-by: Sameeh Jubran <sameehj@amazon.com>
Signed-off-by: Saeed Bshara <saeedb@amazon.com>
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/amazon/ena/ena_com.c | 5 | ||||
| -rw-r--r-- | drivers/net/ethernet/amazon/ena/ena_com.h | 8 | ||||
| -rw-r--r-- | drivers/net/ethernet/amazon/ena/ena_ethtool.c | 3 |
3 files changed, 16 insertions, 0 deletions
diff --git a/drivers/net/ethernet/amazon/ena/ena_com.c b/drivers/net/ethernet/amazon/ena/ena_com.c index 9bd2a7a5b5a7..905911f78693 100644 --- a/drivers/net/ethernet/amazon/ena/ena_com.c +++ b/drivers/net/ethernet/amazon/ena/ena_com.c @@ -857,6 +857,11 @@ static void ena_com_hash_key_fill_default_key(struct ena_com_dev *ena_dev) hash_key->keys_num = sizeof(hash_key->key) / sizeof(u32); } +int ena_com_get_current_hash_function(struct ena_com_dev *ena_dev) +{ + return ena_dev->rss.hash_func; +} + static int ena_com_hash_key_allocate(struct ena_com_dev *ena_dev) { struct ena_rss *rss = &ena_dev->rss; diff --git a/drivers/net/ethernet/amazon/ena/ena_com.h b/drivers/net/ethernet/amazon/ena/ena_com.h index 628bf7a8fc0c..98b2ad20f599 100644 --- a/drivers/net/ethernet/amazon/ena/ena_com.h +++ b/drivers/net/ethernet/amazon/ena/ena_com.h @@ -623,6 +623,14 @@ int ena_com_rss_init(struct ena_com_dev *ena_dev, u16 log_size); */ void ena_com_rss_destroy(struct ena_com_dev *ena_dev); +/* ena_com_get_current_hash_function - Get RSS hash function + * @ena_dev: ENA communication layer struct + * + * Return the current hash function. + * @return: 0 or one of the ena_admin_hash_functions values. + */ +int ena_com_get_current_hash_function(struct ena_com_dev *ena_dev); + /* ena_com_fill_hash_function - Fill RSS hash function * @ena_dev: ENA communication layer struct * @func: The hash function (Toeplitz or crc) diff --git a/drivers/net/ethernet/amazon/ena/ena_ethtool.c b/drivers/net/ethernet/amazon/ena/ena_ethtool.c index 191d36956359..0ef0a7b75751 100644 --- a/drivers/net/ethernet/amazon/ena/ena_ethtool.c +++ b/drivers/net/ethernet/amazon/ena/ena_ethtool.c @@ -751,6 +751,9 @@ static int ena_set_rxfh(struct net_device *netdev, const u32 *indir, } switch (hfunc) { + case ETH_RSS_HASH_NO_CHANGE: + func = ena_com_get_current_hash_function(ena_dev); + break; case ETH_RSS_HASH_TOP: func = ENA_ADMIN_TOEPLITZ; break; |