6fe5efa141
With conccurency managed workqueues, use of dedicated workqueues can be replaced by system_wq. Drop cvm_oct_poll_queue by using system_wq. There are multiple work items per cvm_oct_poll_queue (viz. cvm_oct_rx_refill_work, port_periodic_work) and different cvm_oct_poll_queues need not be be ordered. Hence, concurrency can be increased by switching to system_wq. All work items are sync canceled in cvm_oct_remove() so it is guaranteed that no work is in flight by the time exit path runs. Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
85 lines
2.3 KiB
C
85 lines
2.3 KiB
C
/*
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* This file is based on code from OCTEON SDK by Cavium Networks.
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*
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* Copyright (c) 2003-2010 Cavium Networks
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License, Version 2, as
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* published by the Free Software Foundation.
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*/
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/*
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* External interface for the Cavium Octeon ethernet driver.
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*/
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#ifndef OCTEON_ETHERNET_H
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#define OCTEON_ETHERNET_H
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#include <linux/of.h>
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#include <asm/octeon/cvmx-helper-board.h>
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/**
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* This is the definition of the Ethernet driver's private
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* driver state stored in netdev_priv(dev).
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*/
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struct octeon_ethernet {
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/* PKO hardware output port */
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int port;
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/* PKO hardware queue for the port */
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int queue;
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/* Hardware fetch and add to count outstanding tx buffers */
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int fau;
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/* My netdev. */
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struct net_device *netdev;
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/*
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* Type of port. This is one of the enums in
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* cvmx_helper_interface_mode_t
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*/
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int imode;
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/* List of outstanding tx buffers per queue */
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struct sk_buff_head tx_free_list[16];
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/* Device statistics */
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struct net_device_stats stats;
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struct phy_device *phydev;
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unsigned int last_speed;
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unsigned int last_link;
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/* Last negotiated link state */
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u64 link_info;
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/* Called periodically to check link status */
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void (*poll)(struct net_device *dev);
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struct delayed_work port_periodic_work;
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struct device_node *of_node;
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};
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int cvm_oct_free_work(void *work_queue_entry);
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int cvm_oct_rgmii_open(struct net_device *dev);
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int cvm_oct_sgmii_init(struct net_device *dev);
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int cvm_oct_sgmii_open(struct net_device *dev);
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int cvm_oct_spi_init(struct net_device *dev);
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void cvm_oct_spi_uninit(struct net_device *dev);
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int cvm_oct_common_init(struct net_device *dev);
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void cvm_oct_common_uninit(struct net_device *dev);
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void cvm_oct_adjust_link(struct net_device *dev);
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int cvm_oct_common_stop(struct net_device *dev);
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int cvm_oct_common_open(struct net_device *dev,
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void (*link_poll)(struct net_device *));
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void cvm_oct_note_carrier(struct octeon_ethernet *priv,
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cvmx_helper_link_info_t li);
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void cvm_oct_link_poll(struct net_device *dev);
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extern int always_use_pow;
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extern int pow_send_group;
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extern int pow_receive_group;
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extern char pow_send_list[];
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extern struct net_device *cvm_oct_device[];
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extern atomic_t cvm_oct_poll_queue_stopping;
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extern u64 cvm_oct_tx_poll_interval;
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extern int rx_napi_weight;
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#endif
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