diff options
| author | Sameeh Jubran <sameehj@amazon.com> | 2019-06-11 14:58:09 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-06-12 11:23:45 -0700 |
| commit | eece4d2ab9d214e3b12f5ac1ed189a05793b28a5 (patch) | |
| tree | c4b286259e230a51861a7bd7ff8c88db5581f82b /drivers/net/ethernet/amazon/ena | |
| parent | 13ca32a69e29f3a0fe72094dd930f312b3f3ee44 (diff) | |
| download | linux-eece4d2ab9d214e3b12f5ac1ed189a05793b28a5.tar.bz2 | |
net: ena: add ethtool function for changing io queue sizes
Implement the set_ringparam() function of the ethtool interface
to enable the changing of io queue sizes.
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: Sameeh Jubran <sameehj@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/amazon/ena')
| -rw-r--r-- | drivers/net/ethernet/amazon/ena/ena_ethtool.c | 22 | ||||
| -rw-r--r-- | drivers/net/ethernet/amazon/ena/ena_netdev.c | 14 | ||||
| -rw-r--r-- | drivers/net/ethernet/amazon/ena/ena_netdev.h | 5 |
3 files changed, 40 insertions, 1 deletions
diff --git a/drivers/net/ethernet/amazon/ena/ena_ethtool.c b/drivers/net/ethernet/amazon/ena/ena_ethtool.c index d34eca8a3a67..b46f069ac0eb 100644 --- a/drivers/net/ethernet/amazon/ena/ena_ethtool.c +++ b/drivers/net/ethernet/amazon/ena/ena_ethtool.c @@ -493,6 +493,27 @@ static void ena_get_ringparam(struct net_device *netdev, ring->rx_pending = adapter->rx_ring[0].ring_size; } +static int ena_set_ringparam(struct net_device *netdev, + struct ethtool_ringparam *ring) +{ + struct ena_adapter *adapter = netdev_priv(netdev); + u32 new_tx_size, new_rx_size; + + new_tx_size = ring->tx_pending < ENA_MIN_RING_SIZE ? + ENA_MIN_RING_SIZE : ring->tx_pending; + new_tx_size = rounddown_pow_of_two(new_tx_size); + + new_rx_size = ring->rx_pending < ENA_MIN_RING_SIZE ? + ENA_MIN_RING_SIZE : ring->rx_pending; + new_rx_size = rounddown_pow_of_two(new_rx_size); + + if (new_tx_size == adapter->requested_tx_ring_size && + new_rx_size == adapter->requested_rx_ring_size) + return 0; + + return ena_update_queue_sizes(adapter, new_tx_size, new_rx_size); +} + static u32 ena_flow_hash_to_flow_type(u16 hash_fields) { u32 data = 0; @@ -858,6 +879,7 @@ static const struct ethtool_ops ena_ethtool_ops = { .get_coalesce = ena_get_coalesce, .set_coalesce = ena_set_coalesce, .get_ringparam = ena_get_ringparam, + .set_ringparam = ena_set_ringparam, .get_sset_count = ena_get_sset_count, .get_strings = ena_get_strings, .get_ethtool_stats = ena_get_ethtool_stats, diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c index 1fb0fbd1f41e..602862bc17b7 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@ -2031,6 +2031,20 @@ static int ena_close(struct net_device *netdev) return 0; } +int ena_update_queue_sizes(struct ena_adapter *adapter, + u32 new_tx_size, + u32 new_rx_size) +{ + bool dev_up; + + dev_up = test_bit(ENA_FLAG_DEV_UP, &adapter->flags); + ena_close(adapter->netdev); + adapter->requested_tx_ring_size = new_tx_size; + adapter->requested_rx_ring_size = new_rx_size; + ena_init_io_rings(adapter); + return dev_up ? ena_up(adapter) : 0; +} + static void ena_tx_csum(struct ena_com_tx_ctx *ena_tx_ctx, struct sk_buff *skb) { u32 mss = skb_shinfo(skb)->gso_size; diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.h b/drivers/net/ethernet/amazon/ena/ena_netdev.h index e8fe08cb7ecb..b9d590879815 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.h +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.h @@ -81,7 +81,6 @@ #define ENA_DEFAULT_RING_SIZE (1024) #define ENA_MIN_RING_SIZE (256) - #define ENA_TX_WAKEUP_THRESH (MAX_SKB_FRAGS + 2) #define ENA_DEFAULT_RX_COPYBREAK (256 - NET_IP_ALIGN) @@ -389,6 +388,10 @@ void ena_dump_stats_to_dmesg(struct ena_adapter *adapter); void ena_dump_stats_to_buf(struct ena_adapter *adapter, u8 *buf); +int ena_update_queue_sizes(struct ena_adapter *adapter, + u32 new_tx_size, + u32 new_rx_size); + int ena_get_sset_count(struct net_device *netdev, int sset); #endif /* !(ENA_H) */ |