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| author | Zeng Chi <zengchi@kylinos.cn> | 2026-09-21 18:24:42 +0800 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2026-09-22 08:36:16 -0700 |
| commit | 119e9db233ad0f4cbd4cfb9f9385a7bca378b37d (patch) | |
| tree | 660d50d4139cb750fbde1ae3432452c20726c99d /drivers/net/phy/sfp.h | |
| download | linux-stable-119e9db233ad0f4cbd4cfb9f9385a7bca378b37d.tar.gz linux-stable-119e9db233ad0f4cbd4cfb9f9385a7bca378b37d.zip | |
KVM: Don't pre-reserve xarray entries when storing empty/NULL attributesgrafted
Skip the xarray reservation loop when clearing all memory attributes, as
storing NULL only erases the entry and never needs to allocate, so no
reservation (and no cleanup of a failed one) is required in that case.
Suggested-by: Sean Christopherson <seanjc@google.com>
Cc: David Ballesteros <davimaba.v@proton.me>
Signed-off-by: Zeng Chi <zengchi@kylinos.cn>
Link: https://patch.msgid.link/20260921102442.1232375-1-zeng_chi911@163.com
[sean: split to separate patch]
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'drivers/net/phy/sfp.h')
| -rw-r--r-- | drivers/net/phy/sfp.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/net/phy/sfp.h b/drivers/net/phy/sfp.h new file mode 100644 index 000000000..19fe29d84 --- /dev/null +++ b/drivers/net/phy/sfp.h @@ -0,0 +1,45 @@ +#ifndef SFP_H +#define SFP_H + +#include <linux/ethtool.h> +#include <linux/sfp.h> + +struct sfp; + +struct sfp_quirk { + const char *vendor; + const char *part; + void (*support)(const struct sfp_eeprom_id *id, + struct sfp_module_caps *caps); + void (*fixup)(struct sfp *sfp); + bool part_prefix_match; +}; + +struct sfp_socket_ops { + void (*attach)(struct sfp *sfp); + void (*detach)(struct sfp *sfp); + void (*start)(struct sfp *sfp); + void (*stop)(struct sfp *sfp); + void (*set_signal_rate)(struct sfp *sfp, unsigned int rate_kbd); + int (*module_info)(struct sfp *sfp, struct ethtool_modinfo *modinfo); + int (*module_eeprom)(struct sfp *sfp, struct ethtool_eeprom *ee, + u8 *data); + int (*module_eeprom_by_page)(struct sfp *sfp, + const struct ethtool_module_eeprom *page, + struct netlink_ext_ack *extack); +}; + +int sfp_add_phy(struct sfp_bus *bus, struct phy_device *phydev); +void sfp_remove_phy(struct sfp_bus *bus); +void sfp_link_up(struct sfp_bus *bus); +void sfp_link_down(struct sfp_bus *bus); +int sfp_module_insert(struct sfp_bus *bus, const struct sfp_eeprom_id *id, + const struct sfp_quirk *quirk); +void sfp_module_remove(struct sfp_bus *bus); +int sfp_module_start(struct sfp_bus *bus); +void sfp_module_stop(struct sfp_bus *bus); +struct sfp_bus *sfp_register_socket(struct device *dev, struct sfp *sfp, + const struct sfp_socket_ops *ops); +void sfp_unregister_socket(struct sfp_bus *bus); + +#endif |