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authorThomas Zimmermann <tzimmermann@suse.de>2021-11-18 09:36:39 +0100
committerThomas Zimmermann <tzimmermann@suse.de>2021-11-18 09:36:39 +0100
commita713ca234ea9d946235ac7248995c5fddfd9e523 (patch)
tree708f72ee1c76360aa80c926f1defc8301aef1a23 /include/linux/etherdevice.h
parent37fe0cf5fb803d98efd7feb64b408c9b029c1085 (diff)
parentfa55b7dcdc43c1aa1ba12bca9d2dd4318c2a0dbf (diff)
Merge drm/drm-next into drm-misc-next
Backmerging from drm/drm-next for v5.16-rc1. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Diffstat (limited to 'include/linux/etherdevice.h')
-rw-r--r--include/linux/etherdevice.h39
1 files changed, 34 insertions, 5 deletions
diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h
index 928c411bd509..2ad71cc90b37 100644
--- a/include/linux/etherdevice.h
+++ b/include/linux/etherdevice.h
@@ -26,9 +26,16 @@
#ifdef __KERNEL__
struct device;
+struct fwnode_handle;
+
int eth_platform_get_mac_address(struct device *dev, u8 *mac_addr);
+int platform_get_ethdev_address(struct device *dev, struct net_device *netdev);
unsigned char *arch_get_platform_mac_address(void);
int nvmem_get_mac_address(struct device *dev, void *addrbuf);
+int device_get_mac_address(struct device *dev, char *addr);
+int device_get_ethdev_address(struct device *dev, struct net_device *netdev);
+int fwnode_get_mac_address(struct fwnode_handle *fwnode, char *addr);
+
u32 eth_get_headlen(const struct net_device *dev, const void *data, u32 len);
__be16 eth_type_trans(struct sk_buff *skb, struct net_device *dev);
extern const struct header_ops eth_header_ops;
@@ -227,8 +234,6 @@ static inline void eth_random_addr(u8 *addr)
addr[0] |= 0x02; /* set local assignment bit (IEEE802) */
}
-#define random_ether_addr(addr) eth_random_addr(addr)
-
/**
* eth_broadcast_addr - Assign broadcast address
* @addr: Pointer to a six-byte array containing the Ethernet address
@@ -262,8 +267,11 @@ static inline void eth_zero_addr(u8 *addr)
*/
static inline void eth_hw_addr_random(struct net_device *dev)
{
+ u8 addr[ETH_ALEN];
+
+ eth_random_addr(addr);
+ __dev_addr_set(dev, addr, ETH_ALEN);
dev->addr_assign_type = NET_ADDR_RANDOM;
- eth_random_addr(dev->dev_addr);
}
/**
@@ -308,7 +316,7 @@ static inline void ether_addr_copy(u8 *dst, const u8 *src)
*/
static inline void eth_hw_addr_set(struct net_device *dev, const u8 *addr)
{
- ether_addr_copy(dev->dev_addr, addr);
+ __dev_addr_set(dev, addr, ETH_ALEN);
}
/**
@@ -323,7 +331,7 @@ static inline void eth_hw_addr_inherit(struct net_device *dst,
struct net_device *src)
{
dst->addr_assign_type = src->addr_assign_type;
- ether_addr_copy(dst->dev_addr, src->dev_addr);
+ eth_hw_addr_set(dst, src->dev_addr);
}
/**
@@ -544,6 +552,27 @@ static inline unsigned long compare_ether_header(const void *a, const void *b)
}
/**
+ * eth_hw_addr_gen - Generate and assign Ethernet address to a port
+ * @dev: pointer to port's net_device structure
+ * @base_addr: base Ethernet address
+ * @id: offset to add to the base address
+ *
+ * Generate a MAC address using a base address and an offset and assign it
+ * to a net_device. Commonly used by switch drivers which need to compute
+ * addresses for all their ports. addr_assign_type is not changed.
+ */
+static inline void eth_hw_addr_gen(struct net_device *dev, const u8 *base_addr,
+ unsigned int id)
+{
+ u64 u = ether_addr_to_u64(base_addr);
+ u8 addr[ETH_ALEN];
+
+ u += id;
+ u64_to_ether_addr(u, addr);
+ eth_hw_addr_set(dev, addr);
+}
+
+/**
* eth_skb_pad - Pad buffer to mininum number of octets for Ethernet frame
* @skb: Buffer to pad
*