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usbnet: add method for reporting speed without MII

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The old method for reporting link speed assumed a driver uses the
generic phy (mii) MDIO read/write functions. CDC devices don't
expose the phy.

Add a primitive internal version reporting back directly what
the CDC notification/status operations recorded.

v2: rebased on upstream
v3: changed names and made clear which units are used
v4: moved hunks to correct patch; rewrote commmit messages

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Tested-by: Roland Dreier <roland@kernel.org>
Reviewed-by: Grant Grundler <grundler@chromium.org>
Tested-by: Grant Grundler <grundler@chromium.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Oliver Neukum
2021-04-05 16:13:42 -07:00
committed by David S. Miller
parent 77651900ce
commit 956baa9957
2 changed files with 28 additions and 2 deletions
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7
include/linux/usb/usbnet.h
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@@ -53,6 +53,9 @@ struct usbnet {
u32 hard_mtu; /* count any extra framing */
size_t rx_urb_size; /* size for rx urbs */
struct mii_if_info mii;
long rx_speed; /* If MII not used */
long tx_speed; /* If MII not used */
# define SPEED_UNSET -1
/* various kinds of pending driver work */
struct sk_buff_head rxq;
@@ -81,8 +84,6 @@ struct usbnet {
# define EVENT_LINK_CHANGE 11
# define EVENT_SET_RX_MODE 12
# define EVENT_NO_IP_ALIGN 13
u32 rx_speed; /* in bps - NOT Mbps */
u32 tx_speed; /* in bps - NOT Mbps */
};
static inline struct usb_driver *driver_of(struct usb_interface *intf)
@@ -271,6 +272,8 @@ extern int usbnet_get_link_ksettings_mii(struct net_device *net,
struct ethtool_link_ksettings *cmd);
extern int usbnet_set_link_ksettings_mii(struct net_device *net,
const struct ethtool_link_ksettings *cmd);
extern int usbnet_get_link_ksettings_internal(struct net_device *net,
struct ethtool_link_ksettings *cmd);
extern u32 usbnet_get_link(struct net_device *net);
extern u32 usbnet_get_msglevel(struct net_device *);
extern void usbnet_set_msglevel(struct net_device *, u32);