diff options
| author | Robert-Ionut Alexa <robert-ionut.alexa@nxp.com> | 2022-10-18 17:18:50 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-10-24 09:22:11 +0100 |
| commit | 14e493ddc341169f640a5b73120a278411129d4e (patch) | |
| tree | 510771317eb23b3ffbc0d8a4a2f103ba403d66a0 /drivers | |
| parent | 3bd5549bd479d4451cf20be077fa7646f9ffc56f (diff) | |
net: dpaa2-eth: add support to query the number of queues through ethtool
The .get_channels() ethtool_ops callback is implemented and exports the
number of queues: Rx, Tx, Tx conf and Rx err.
The last two ones, Tx confirmation and Rx err, are counted as 'others'.
The .set_channels() callback is not implemented since the DPAA2
software/firmware architecture does not allow the dynamic
reconfiguration of the number of queues.
Signed-off-by: Robert-Ionut Alexa <robert-ionut.alexa@nxp.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c index eea7d7a07c00..97ec2adf5dc5 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c @@ -1,7 +1,6 @@ // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) /* Copyright 2014-2016 Freescale Semiconductor Inc. - * Copyright 2016 NXP - * Copyright 2020 NXP + * Copyright 2016-2022 NXP */ #include <linux/net_tstamp.h> @@ -876,6 +875,29 @@ restore_rx_usecs: return err; } +static void dpaa2_eth_get_channels(struct net_device *net_dev, + struct ethtool_channels *channels) +{ + struct dpaa2_eth_priv *priv = netdev_priv(net_dev); + int queue_count = dpaa2_eth_queue_count(priv); + + channels->max_rx = queue_count; + channels->max_tx = queue_count; + channels->rx_count = queue_count; + channels->tx_count = queue_count; + + /* Tx confirmation and Rx error */ + channels->max_other = queue_count + 1; + channels->max_combined = channels->max_rx + + channels->max_tx + + channels->max_other; + /* Tx conf and Rx err */ + channels->other_count = queue_count + 1; + channels->combined_count = channels->rx_count + + channels->tx_count + + channels->other_count; +} + const struct ethtool_ops dpaa2_ethtool_ops = { .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS | ETHTOOL_COALESCE_USE_ADAPTIVE_RX, @@ -896,4 +918,5 @@ const struct ethtool_ops dpaa2_ethtool_ops = { .set_tunable = dpaa2_eth_set_tunable, .get_coalesce = dpaa2_eth_get_coalesce, .set_coalesce = dpaa2_eth_set_coalesce, + .get_channels = dpaa2_eth_get_channels, }; |