118 lines
3.2 KiB
C
118 lines
3.2 KiB
C
/* Please avoid adding hacks here - instead add it to mac80211/backports.git */
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#include <linux/version.h> /* LINUX_VERSION_CODE */
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#include <linux/types.h>
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#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 1, 0)
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#define dev_get_iflink(_net_dev) ((_net_dev)->iflink)
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#endif /* < KERNEL_VERSION(4, 1, 0) */
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#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 9, 0)
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#include <linux/netdevice.h>
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#define netdev_master_upper_dev_link(dev, upper_dev, upper_priv, upper_info) ({\
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BUILD_BUG_ON(upper_priv != NULL); \
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BUILD_BUG_ON(upper_info != NULL); \
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netdev_set_master(dev, upper_dev); \
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})
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#elif LINUX_VERSION_CODE < KERNEL_VERSION(4, 5, 0)
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#include <linux/netdevice.h>
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#define netdev_master_upper_dev_link(dev, upper_dev, upper_priv, upper_info) ({\
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BUILD_BUG_ON(upper_priv != NULL); \
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BUILD_BUG_ON(upper_info != NULL); \
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netdev_master_upper_dev_link(dev, upper_dev); \
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})
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#endif /* < KERNEL_VERSION(4, 5, 0) */
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#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 3, 0)
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#define IFF_NO_QUEUE 0; dev->tx_queue_len = 0
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/* Exponentially weighted moving average (EWMA) */
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#define DECLARE_EWMA(name, _factor, _weight) \
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struct ewma_##name { \
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unsigned long internal; \
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}; \
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static inline void ewma_##name##_init(struct ewma_##name *e) \
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{ \
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BUILD_BUG_ON(!__builtin_constant_p(_factor)); \
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BUILD_BUG_ON(!__builtin_constant_p(_weight)); \
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BUILD_BUG_ON_NOT_POWER_OF_2(_factor); \
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BUILD_BUG_ON_NOT_POWER_OF_2(_weight); \
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e->internal = 0; \
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} \
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static inline unsigned long \
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ewma_##name##_read(struct ewma_##name *e) \
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{ \
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BUILD_BUG_ON(!__builtin_constant_p(_factor)); \
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BUILD_BUG_ON(!__builtin_constant_p(_weight)); \
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BUILD_BUG_ON_NOT_POWER_OF_2(_factor); \
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BUILD_BUG_ON_NOT_POWER_OF_2(_weight); \
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return e->internal >> ilog2(_factor); \
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} \
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static inline void ewma_##name##_add(struct ewma_##name *e, \
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unsigned long val) \
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{ \
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unsigned long internal = ACCESS_ONCE(e->internal); \
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unsigned long weight = ilog2(_weight); \
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unsigned long factor = ilog2(_factor); \
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\
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BUILD_BUG_ON(!__builtin_constant_p(_factor)); \
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BUILD_BUG_ON(!__builtin_constant_p(_weight)); \
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BUILD_BUG_ON_NOT_POWER_OF_2(_factor); \
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BUILD_BUG_ON_NOT_POWER_OF_2(_weight); \
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\
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ACCESS_ONCE(e->internal) = internal ? \
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(((internal << weight) - internal) + \
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(val << factor)) >> weight : \
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(val << factor); \
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}
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#endif /* < KERNEL_VERSION(4, 3, 0) */
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#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 6, 0)
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#include <linux/ethtool.h>
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#define ethtool_link_ksettings batadv_ethtool_link_ksettings
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struct batadv_ethtool_link_ksettings {
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struct {
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__u32 speed;
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__u8 duplex;
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} base;
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};
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#define __ethtool_get_link_ksettings(__dev, __link_settings) \
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batadv_ethtool_get_link_ksettings(__dev, __link_settings)
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static inline int
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batadv_ethtool_get_link_ksettings(struct net_device *dev,
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struct ethtool_link_ksettings *link_ksettings)
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{
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struct ethtool_cmd cmd;
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int ret;
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memset(&cmd, 0, sizeof(cmd));
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ret = __ethtool_get_settings(dev, &cmd);
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if (ret != 0)
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return ret;
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link_ksettings->base.duplex = cmd.duplex;
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link_ksettings->base.speed = ethtool_cmd_speed(&cmd);
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return 0;
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}
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#endif /* < KERNEL_VERSION(4, 6, 0) */
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