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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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74c551ca5a
When dealing with some copper modules, we can't positively know the module capabilities are until we have probed the PHY. Without the full capabilities, we may end up failing a module that we could otherwise drive with a restricted set of capabilities. An example of this would be a module with a NBASE-T PHY plugged into a host that supports phy interface modes 2500BASE-X and SGMII. The PHY supports 10GBASE-R, 5000BASE-X, 2500BASE-X, SGMII interface modes, which means a subset of the capabilities are compatible with the host. However, reading the module EEPROM leads us to believe that the module only supports ethtool link mode 10GBASE-T, which is incompatible with the host - and thus results in the module being rejected. This patch adds an extra notification which are triggered after the SFP module's PHY probe, and a corresponding notification just before the PHY is removed. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
33 lines
1.0 KiB
C
33 lines
1.0 KiB
C
#ifndef SFP_H
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#define SFP_H
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#include <linux/ethtool.h>
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#include <linux/sfp.h>
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struct sfp;
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struct sfp_socket_ops {
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void (*attach)(struct sfp *sfp);
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void (*detach)(struct sfp *sfp);
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void (*start)(struct sfp *sfp);
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void (*stop)(struct sfp *sfp);
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int (*module_info)(struct sfp *sfp, struct ethtool_modinfo *modinfo);
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int (*module_eeprom)(struct sfp *sfp, struct ethtool_eeprom *ee,
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u8 *data);
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};
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int sfp_add_phy(struct sfp_bus *bus, struct phy_device *phydev);
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void sfp_remove_phy(struct sfp_bus *bus);
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void sfp_link_up(struct sfp_bus *bus);
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void sfp_link_down(struct sfp_bus *bus);
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int sfp_module_insert(struct sfp_bus *bus, const struct sfp_eeprom_id *id);
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void sfp_module_remove(struct sfp_bus *bus);
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int sfp_module_start(struct sfp_bus *bus);
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void sfp_module_stop(struct sfp_bus *bus);
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int sfp_link_configure(struct sfp_bus *bus, const struct sfp_eeprom_id *id);
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struct sfp_bus *sfp_register_socket(struct device *dev, struct sfp *sfp,
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const struct sfp_socket_ops *ops);
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void sfp_unregister_socket(struct sfp_bus *bus);
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#endif
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