ac63b94708
This patch adds tx_stall_task. When receiver's buffer is full, sender stops its tx queue. This task is used to monitor receiver's status and when receiver's buffer is avairable, it resumes tx queue. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
67 lines
1.7 KiB
C
67 lines
1.7 KiB
C
/*
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* FUJITSU Extended Socket Network Device driver
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* Copyright (c) 2015 FUJITSU LIMITED
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, see <http://www.gnu.org/licenses/>.
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*
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* The full GNU General Public License is included in this distribution in
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* the file called "COPYING".
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*
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*/
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#ifndef FJES_H_
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#define FJES_H_
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#include <linux/acpi.h>
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#include "fjes_hw.h"
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#define FJES_ACPI_SYMBOL "Extended Socket"
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#define FJES_MAX_QUEUES 1
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#define FJES_TX_RETRY_INTERVAL (20 * HZ)
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#define FJES_TX_RETRY_TIMEOUT (100)
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#define FJES_TX_TX_STALL_TIMEOUT (FJES_TX_RETRY_INTERVAL / 2)
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#define FJES_OPEN_ZONE_UPDATE_WAIT (300) /* msec */
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/* board specific private data structure */
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struct fjes_adapter {
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struct net_device *netdev;
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struct platform_device *plat_dev;
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struct napi_struct napi;
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struct rtnl_link_stats64 stats64;
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unsigned int tx_retry_count;
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unsigned long tx_start_jiffies;
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unsigned long rx_last_jiffies;
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bool unset_rx_last;
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bool force_reset;
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bool open_guard;
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bool irq_registered;
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struct workqueue_struct *txrx_wq;
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struct work_struct tx_stall_task;
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struct work_struct raise_intr_rxdata_task;
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struct fjes_hw hw;
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};
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extern char fjes_driver_name[];
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extern char fjes_driver_version[];
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extern const u32 fjes_support_mtu[];
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#endif /* FJES_H_ */
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