diff options
Diffstat (limited to 'backport-include/net/sch_generic.h')
| -rw-r--r-- | backport-include/net/sch_generic.h | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/backport-include/net/sch_generic.h b/backport-include/net/sch_generic.h new file mode 100644 index 0000000..04997c7 --- /dev/null +++ b/backport-include/net/sch_generic.h @@ -0,0 +1,132 @@ +#ifndef __BACKPORT_NET_SCH_GENERIC_H +#define __BACKPORT_NET_SCH_GENERIC_H +#include_next <net/sch_generic.h> + +#if LINUX_VERSION_CODE < KERNEL_VERSION(3,3,0) +#if !((LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,9) && LINUX_VERSION_CODE < KERNEL_VERSION(3,3,0)) || (LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,23) && LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))) +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,37) +/* mask qdisc_cb_private_validate as RHEL6 backports this */ +#define qdisc_cb_private_validate(a,b) compat_qdisc_cb_private_validate(a,b) +static inline void qdisc_cb_private_validate(const struct sk_buff *skb, int sz) +{ + BUILD_BUG_ON(sizeof(skb->cb) < sizeof(struct qdisc_skb_cb) + sz); +} +#else +/* mask qdisc_cb_private_validate as RHEL6 backports this */ +#define qdisc_cb_private_validate(a,b) compat_qdisc_cb_private_validate(a,b) +static inline void qdisc_cb_private_validate(const struct sk_buff *skb, int sz) +{ + /* XXX ? */ +} +#endif +#endif +#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3,3,0) */ + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27) +static inline struct net_device *qdisc_dev(const struct Qdisc *qdisc) +{ + return qdisc->dev; +} + +/* + * Backports 378a2f09 and c27f339a + * This may need a bit more work. + */ +enum net_xmit_qdisc_t { + __NET_XMIT_STOLEN = 0x00010000, + __NET_XMIT_BYPASS = 0x00020000, +}; + +struct qdisc_skb_cb { + unsigned int pkt_len; + char data[]; +}; + +static inline struct qdisc_skb_cb *qdisc_skb_cb(struct sk_buff *skb) +{ + return (struct qdisc_skb_cb *)skb->cb; +} + +static inline unsigned int qdisc_pkt_len(struct sk_buff *skb) +{ + return qdisc_skb_cb(skb)->pkt_len; +} +#endif + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38) +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,30) +static inline void bstats_update(struct gnet_stats_basic_packed *bstats, + const struct sk_buff *skb) +{ + bstats->bytes += qdisc_pkt_len((struct sk_buff *) skb); + bstats->packets += skb_is_gso(skb) ? skb_shinfo(skb)->gso_segs : 1; +} +static inline void qdisc_bstats_update(struct Qdisc *sch, + const struct sk_buff *skb) +{ + bstats_update(&sch->bstats, skb); +} +#else +/* + * kernels <= 2.6.30 do not pass a const skb to qdisc_pkt_len, and + * gnet_stats_basic_packed did not exist (see c1a8f1f1c8) + */ +static inline void bstats_update(struct gnet_stats_basic *bstats, + struct sk_buff *skb) +{ + bstats->bytes += qdisc_pkt_len(skb); + bstats->packets += skb_is_gso(skb) ? skb_shinfo(skb)->gso_segs : 1; +} +static inline void qdisc_bstats_update(struct Qdisc *sch, + struct sk_buff *skb) +{ + bstats_update(&sch->bstats, skb); +} +#endif +#endif /* < 2.6.38 */ + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,35) +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27) + +#define qdisc_reset_all_tx_gt LINUX_BACKPORT(qdisc_reset_all_tx_gt) + +/* Reset all TX qdiscs greater then index of a device. */ +static inline void qdisc_reset_all_tx_gt(struct net_device *dev, unsigned int i) +{ + struct Qdisc *qdisc; + + for (; i < dev->num_tx_queues; i++) { + qdisc = netdev_get_tx_queue(dev, i)->qdisc; + if (qdisc) { + spin_lock_bh(qdisc_lock(qdisc)); + qdisc_reset(qdisc); + spin_unlock_bh(qdisc_lock(qdisc)); + } + } +} +#else +static inline void qdisc_reset_all_tx_gt(struct net_device *dev, unsigned int i) +{ +} +#endif /* >= 2.6.27 */ +#endif /* < 2.6.35 */ + +#ifndef TCQ_F_CAN_BYPASS +#define TCQ_F_CAN_BYPASS 4 +#endif + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,32) +static inline int qdisc_qlen(const struct Qdisc *q) +{ + return q->q.qlen; +} +#endif + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27) +static inline bool qdisc_all_tx_empty(const struct net_device *dev) +{ + return skb_queue_empty(&dev->qdisc->q); +} +#endif + +#endif /* __BACKPORT_NET_SCH_GENERIC_H */ |