linux-stable/include/linux/linkmode.h
Russell King 45c767faef net: add linkmode helper for setting flow control advertisement
Add a linkmode helper to set the flow control advertisement in an
ethtool linkmode mask according to the tx/rx capabilities. This
implementation is moved from phylib, and documented with an
analysis of its shortcomings.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-16 19:39:44 -08:00

97 lines
2.3 KiB
C

#ifndef __LINKMODE_H
#define __LINKMODE_H
#include <linux/bitmap.h>
#include <linux/ethtool.h>
#include <uapi/linux/ethtool.h>
static inline void linkmode_zero(unsigned long *dst)
{
bitmap_zero(dst, __ETHTOOL_LINK_MODE_MASK_NBITS);
}
static inline void linkmode_copy(unsigned long *dst, const unsigned long *src)
{
bitmap_copy(dst, src, __ETHTOOL_LINK_MODE_MASK_NBITS);
}
static inline void linkmode_and(unsigned long *dst, const unsigned long *a,
const unsigned long *b)
{
bitmap_and(dst, a, b, __ETHTOOL_LINK_MODE_MASK_NBITS);
}
static inline void linkmode_or(unsigned long *dst, const unsigned long *a,
const unsigned long *b)
{
bitmap_or(dst, a, b, __ETHTOOL_LINK_MODE_MASK_NBITS);
}
static inline bool linkmode_empty(const unsigned long *src)
{
return bitmap_empty(src, __ETHTOOL_LINK_MODE_MASK_NBITS);
}
static inline int linkmode_andnot(unsigned long *dst, const unsigned long *src1,
const unsigned long *src2)
{
return bitmap_andnot(dst, src1, src2, __ETHTOOL_LINK_MODE_MASK_NBITS);
}
static inline void linkmode_set_bit(int nr, volatile unsigned long *addr)
{
__set_bit(nr, addr);
}
static inline void linkmode_set_bit_array(const int *array, int array_size,
unsigned long *addr)
{
int i;
for (i = 0; i < array_size; i++)
linkmode_set_bit(array[i], addr);
}
static inline void linkmode_clear_bit(int nr, volatile unsigned long *addr)
{
__clear_bit(nr, addr);
}
static inline void linkmode_mod_bit(int nr, volatile unsigned long *addr,
int set)
{
if (set)
linkmode_set_bit(nr, addr);
else
linkmode_clear_bit(nr, addr);
}
static inline void linkmode_change_bit(int nr, volatile unsigned long *addr)
{
__change_bit(nr, addr);
}
static inline int linkmode_test_bit(int nr, const volatile unsigned long *addr)
{
return test_bit(nr, addr);
}
static inline int linkmode_equal(const unsigned long *src1,
const unsigned long *src2)
{
return bitmap_equal(src1, src2, __ETHTOOL_LINK_MODE_MASK_NBITS);
}
static inline int linkmode_subset(const unsigned long *src1,
const unsigned long *src2)
{
return bitmap_subset(src1, src2, __ETHTOOL_LINK_MODE_MASK_NBITS);
}
void linkmode_resolve_pause(const unsigned long *local_adv,
const unsigned long *partner_adv,
bool *tx_pause, bool *rx_pause);
void linkmode_set_pause(unsigned long *advertisement, bool tx, bool rx);
#endif /* __LINKMODE_H */