64b5d1f8f2
Add tx packets aggregation. Bidirectional TCP throughput tests through iperf with low-cat Thread-x based modems revelead performance issues both in tx and rx. The Windows driver does not show this issue: inspecting USB packets revealed that the only notable change is the driver enabling tx packets aggregation. Tx packets aggregation is by default disabled and can be enabled by increasing the value of ETHTOOL_A_COALESCE_TX_MAX_AGGR_FRAMES. The maximum aggregated size is by default set to a reasonably low value in order to support the majority of modems. This implementation is based on patches available in Code Aurora repositories (msm kernel) whose main authors are Subash Abhinov Kasiviswanathan <subashab@codeaurora.org> Sean Tranchetti <stranche@codeaurora.org> Signed-off-by: Daniele Palmas <dnlplm@gmail.com> Reviewed-by: Subash Abhinov Kasiviswanathan <quic_subashab@quicinc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
25 lines
1,014 B
C
25 lines
1,014 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/* Copyright (c) 2013-2017, The Linux Foundation. All rights reserved.
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*
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* RMNET Data Virtual Network Device APIs
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*/
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#ifndef _RMNET_VND_H_
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#define _RMNET_VND_H_
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int rmnet_vnd_do_flow_control(struct net_device *dev, int enable);
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int rmnet_vnd_newlink(u8 id, struct net_device *rmnet_dev,
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struct rmnet_port *port,
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struct net_device *real_dev,
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struct rmnet_endpoint *ep,
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struct netlink_ext_ack *extack);
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int rmnet_vnd_dellink(u8 id, struct rmnet_port *port,
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struct rmnet_endpoint *ep);
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void rmnet_vnd_rx_fixup(struct sk_buff *skb, struct net_device *dev);
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void rmnet_vnd_tx_fixup_len(unsigned int len, struct net_device *dev);
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void rmnet_vnd_tx_fixup(struct sk_buff *skb, struct net_device *dev);
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void rmnet_vnd_setup(struct net_device *dev);
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int rmnet_vnd_validate_real_dev_mtu(struct net_device *real_dev);
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int rmnet_vnd_update_dev_mtu(struct rmnet_port *port,
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struct net_device *real_dev);
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#endif /* _RMNET_VND_H_ */
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