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authorRussell King <rmk+kernel@armlinux.org.uk>2020-03-14 10:09:58 +0000
committerDavid S. Miller <davem@davemloft.net>2020-03-15 17:10:14 -0700
commita9f28eba6eaab651e4cec6d936a107b03d61754a (patch)
treeff3ba602d42085c33df8f302d72796ea62dcba70 /include/linux/mii.h
parentf6554187855a4ddce235d22cc1486c118846b592 (diff)
net: mii: add linkmode_adv_to_mii_adv_x()
Add a helper to convert a linkmode advertisement to a clause 37 advertisement value for 1000base-x and 2500base-x. 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>
Diffstat (limited to 'include/linux/mii.h')
-rw-r--r--include/linux/mii.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/mii.h b/include/linux/mii.h
index 309de4a3e6e7..219b93cad1dd 100644
--- a/include/linux/mii.h
+++ b/include/linux/mii.h
@@ -537,6 +537,26 @@ static inline void mii_lpa_mod_linkmode_x(unsigned long *linkmodes, u16 lpa,
}
/**
+ * linkmode_adv_to_mii_adv_x - encode a linkmode to config_reg
+ * @linkmodes: linkmodes
+ * @fd_bit: full duplex bit
+ */
+static inline u16 linkmode_adv_to_mii_adv_x(const unsigned long *linkmodes,
+ int fd_bit)
+{
+ u16 adv = 0;
+
+ if (linkmode_test_bit(fd_bit, linkmodes))
+ adv |= ADVERTISE_1000XFULL;
+ if (linkmode_test_bit(ETHTOOL_LINK_MODE_Pause_BIT, linkmodes))
+ adv |= ADVERTISE_1000XPAUSE;
+ if (linkmode_test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, linkmodes))
+ adv |= ADVERTISE_1000XPSE_ASYM;
+
+ return adv;
+}
+
+/**
* mii_advertise_flowctrl - get flow control advertisement flags
* @cap: Flow control capabilities (FLOW_CTRL_RX, FLOW_CTRL_TX or both)
*/