493953d36f
Changes in 4.9.200 regulator: ti-abb: Fix timeout in ti_abb_wait_txdone/ti_abb_clear_all_txdone regulator: pfuze100-regulator: Variable "val" in pfuze100_regulator_probe() could be uninitialized ASoC: wm_adsp: Don't generate kcontrols without READ flags ASoc: rockchip: i2s: Fix RPM imbalance ARM: dts: logicpd-torpedo-som: Remove twl_keypad pinctrl: ns2: Fix off by one bugs in ns2_pinmux_enable() ARM: mm: fix alignment handler faults under memory pressure scsi: scsi_dh_alua: handle RTPG sense code correctly during state transitions scsi: sni_53c710: fix compilation error scsi: fix kconfig dependency warning related to 53C700_LE_ON_BE ARM: dts: imx7s: Correct GPT's ipg clock source perf kmem: Fix memory leak in compact_gfp_flags() ARM: davinci: dm365: Fix McBSP dma_slave_map entry scsi: target: core: Do not overwrite CDB byte 1 of: unittest: fix memory leak in unittest_data_add MIPS: bmips: mark exception vectors as char arrays cifs: Fix cifsInodeInfo lock_sem deadlock when reconnect occurs dccp: do not leak jiffies on the wire net: fix sk_page_frag() recursion from memory reclaim net: hisilicon: Fix ping latency when deal with high throughput net: Zeroing the structure ethtool_wolinfo in ethtool_get_wol() selftests: net: reuseport_dualstack: fix uninitalized parameter net: add READ_ONCE() annotation in __skb_wait_for_more_packets() net: dsa: fix switch tree list net: bcmgenet: reset 40nm EPHY on energy detect vxlan: check tun_info options_len properly net/mlx4_core: Dynamically set guaranteed amount of counters per VF inet: stop leaking jiffies on the wire Kbuild: make designated_init attribute fatal kbuild: use -fmacro-prefix-map to make __FILE__ a relative path kbuild: add -fcf-protection=none when using retpoline flags net/flow_dissector: switch to siphash dmaengine: qcom: bam_dma: Fix resource leak alarmtimer: Change remaining ENOTSUPP to EOPNOTSUPP Linux 4.9.200 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
99 lines
2.5 KiB
C
99 lines
2.5 KiB
C
/*
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* Copyright (c) 2016 Qualcomm Atheros, Inc
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*
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* GPL v2
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*
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* Based on net/sched/sch_fq_codel.c
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*/
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#ifndef __NET_SCHED_FQ_H
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#define __NET_SCHED_FQ_H
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struct fq_tin;
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/**
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* struct fq_flow - per traffic flow queue
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*
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* @tin: owner of this flow. Used to manage collisions, i.e. when a packet
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* hashes to an index which points to a flow that is already owned by a
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* different tin the packet is destined to. In such case the implementer
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* must provide a fallback flow
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* @flowchain: can be linked to fq_tin's new_flows or old_flows. Used for DRR++
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* (deficit round robin) based round robin queuing similar to the one
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* found in net/sched/sch_fq_codel.c
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* @backlogchain: can be linked to other fq_flow and fq. Used to keep track of
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* fat flows and efficient head-dropping if packet limit is reached
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* @queue: sk_buff queue to hold packets
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* @backlog: number of bytes pending in the queue. The number of packets can be
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* found in @queue.qlen
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* @deficit: used for DRR++
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*/
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struct fq_flow {
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struct fq_tin *tin;
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struct list_head flowchain;
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struct list_head backlogchain;
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struct sk_buff_head queue;
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u32 backlog;
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int deficit;
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};
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/**
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* struct fq_tin - a logical container of fq_flows
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*
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* Used to group fq_flows into a logical aggregate. DRR++ scheme is used to
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* pull interleaved packets out of the associated flows.
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*
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* @new_flows: linked list of fq_flow
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* @old_flows: linked list of fq_flow
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*/
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struct fq_tin {
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struct list_head new_flows;
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struct list_head old_flows;
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u32 backlog_bytes;
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u32 backlog_packets;
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u32 overlimit;
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u32 collisions;
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u32 flows;
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u32 tx_bytes;
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u32 tx_packets;
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};
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/**
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* struct fq - main container for fair queuing purposes
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*
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* @backlogs: linked to fq_flows. Used to maintain fat flows for efficient
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* head-dropping when @backlog reaches @limit
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* @limit: max number of packets that can be queued across all flows
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* @backlog: number of packets queued across all flows
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*/
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struct fq {
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struct fq_flow *flows;
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struct list_head backlogs;
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spinlock_t lock;
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u32 flows_cnt;
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siphash_key_t perturbation;
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u32 limit;
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u32 memory_limit;
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u32 memory_usage;
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u32 quantum;
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u32 backlog;
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u32 overlimit;
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u32 overmemory;
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u32 collisions;
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};
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typedef struct sk_buff *fq_tin_dequeue_t(struct fq *,
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struct fq_tin *,
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struct fq_flow *flow);
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typedef void fq_skb_free_t(struct fq *,
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struct fq_tin *,
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struct fq_flow *,
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struct sk_buff *);
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typedef struct fq_flow *fq_flow_get_default_t(struct fq *,
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struct fq_tin *,
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int idx,
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struct sk_buff *);
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#endif
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