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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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b5bfc21af5
When we probe a SFP module, we expect to be able to call the upstream device's module_insert() function so that the upstream link can be configured. However, when the upstream device is delayed, we currently may end up probing the module before the upstream device is available, and lose the module_insert() call. Avoid this by holding off probing the module until the SFP bus is properly connected to both the SFP socket driver and the upstream driver. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
31 lines
968 B
C
31 lines
968 B
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_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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