diff options
Diffstat (limited to 'target/linux/generic/backport-5.4/742-v5.5-net-sfp-add-support-for-module-quirks.patch')
| -rw-r--r-- | target/linux/generic/backport-5.4/742-v5.5-net-sfp-add-support-for-module-quirks.patch | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.4/742-v5.5-net-sfp-add-support-for-module-quirks.patch b/target/linux/generic/backport-5.4/742-v5.5-net-sfp-add-support-for-module-quirks.patch new file mode 100644 index 0000000000..5068bd468c --- /dev/null +++ b/target/linux/generic/backport-5.4/742-v5.5-net-sfp-add-support-for-module-quirks.patch @@ -0,0 +1,111 @@ +From 8df5dd55cef48c0769379e04dbc085a899b106d4 Mon Sep 17 00:00:00 2001 +From: Russell King <rmk+kernel@armlinux.org.uk> +Date: Fri, 8 Mar 2019 14:02:25 +0000 +Subject: [PATCH 640/660] net: sfp: add support for module quirks + +Add support for applying module quirks to the list of supported +ethtool link modes. + +Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> +--- + drivers/net/phy/sfp-bus.c | 54 +++++++++++++++++++++++++++++++++++++++ + 1 file changed, 54 insertions(+) + +--- a/drivers/net/phy/sfp-bus.c ++++ b/drivers/net/phy/sfp-bus.c +@@ -9,6 +9,12 @@ + + #include "sfp.h" + ++struct sfp_quirk { ++ const char *vendor; ++ const char *part; ++ void (*modes)(const struct sfp_eeprom_id *id, unsigned long *modes); ++}; ++ + /** + * struct sfp_bus - internal representation of a sfp bus + */ +@@ -21,6 +27,7 @@ struct sfp_bus { + const struct sfp_socket_ops *socket_ops; + struct device *sfp_dev; + struct sfp *sfp; ++ const struct sfp_quirk *sfp_quirk; + + const struct sfp_upstream_ops *upstream_ops; + void *upstream; +@@ -30,6 +37,46 @@ struct sfp_bus { + bool started; + }; + ++static const struct sfp_quirk sfp_quirks[] = { ++}; ++ ++static size_t sfp_strlen(const char *str, size_t maxlen) ++{ ++ size_t size, i; ++ ++ /* Trailing characters should be filled with space chars */ ++ for (i = 0, size = 0; i < maxlen; i++) ++ if (str[i] != ' ') ++ size = i + 1; ++ ++ return size; ++} ++ ++static bool sfp_match(const char *qs, const char *str, size_t len) ++{ ++ if (!qs) ++ return true; ++ if (strlen(qs) != len) ++ return false; ++ return !strncmp(qs, str, len); ++} ++ ++static const struct sfp_quirk *sfp_lookup_quirk(const struct sfp_eeprom_id *id) ++{ ++ const struct sfp_quirk *q; ++ unsigned int i; ++ size_t vs, ps; ++ ++ vs = sfp_strlen(id->base.vendor_name, ARRAY_SIZE(id->base.vendor_name)); ++ ps = sfp_strlen(id->base.vendor_pn, ARRAY_SIZE(id->base.vendor_pn)); ++ ++ for (i = 0, q = sfp_quirks; i < ARRAY_SIZE(sfp_quirks); i++, q++) ++ if (sfp_match(q->vendor, id->base.vendor_name, vs) && ++ sfp_match(q->part, id->base.vendor_pn, ps)) ++ return q; ++ ++ return NULL; ++} + /** + * sfp_parse_port() - Parse the EEPROM base ID, setting the port type + * @bus: a pointer to the &struct sfp_bus structure for the sfp module +@@ -233,6 +280,9 @@ void sfp_parse_support(struct sfp_bus *b + phylink_set(modes, 1000baseX_Full); + } + ++ if (bus->sfp_quirk) ++ bus->sfp_quirk->modes(id, modes); ++ + bitmap_or(support, support, modes, __ETHTOOL_LINK_MODE_MASK_NBITS); + + phylink_set(support, Autoneg); +@@ -609,6 +659,8 @@ int sfp_module_insert(struct sfp_bus *bu + const struct sfp_upstream_ops *ops = sfp_get_upstream_ops(bus); + int ret = 0; + ++ bus->sfp_quirk = sfp_lookup_quirk(id); ++ + if (ops && ops->module_insert) + ret = ops->module_insert(bus->upstream, id); + +@@ -622,6 +674,8 @@ void sfp_module_remove(struct sfp_bus *b + + if (ops && ops->module_remove) + ops->module_remove(bus->upstream); ++ ++ bus->sfp_quirk = NULL; + } + EXPORT_SYMBOL_GPL(sfp_module_remove); + |