mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-22 15:02:32 +00:00
d40756563c
Let's pick a bunch of useful phylink changes which allow us to keep drivers in sync with mainline Linux. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
150 lines
4.8 KiB
Diff
150 lines
4.8 KiB
Diff
From 0100d1c5789018ba77bf2f4fab3bd91ecece7b3b Mon Sep 17 00:00:00 2001
|
|
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
|
|
Date: Wed, 17 May 2023 11:38:12 +0100
|
|
Subject: [PATCH 14/21] net: sfp: add support for setting signalling rate
|
|
|
|
Add support to the SFP layer to allow phylink to set the signalling
|
|
rate for a SFP module. The rate given will be in units of kilo-baud
|
|
(1000 baud).
|
|
|
|
Reviewed-by: Simon Horman <simon.horman@corigine.com>
|
|
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
|
|
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
---
|
|
drivers/net/phy/phylink.c | 24 ++++++++++++++++++++++++
|
|
drivers/net/phy/sfp-bus.c | 20 ++++++++++++++++++++
|
|
drivers/net/phy/sfp.c | 5 +++++
|
|
drivers/net/phy/sfp.h | 1 +
|
|
include/linux/sfp.h | 6 ++++++
|
|
5 files changed, 56 insertions(+)
|
|
|
|
--- a/drivers/net/phy/phylink.c
|
|
+++ b/drivers/net/phy/phylink.c
|
|
@@ -156,6 +156,23 @@ static const char *phylink_an_mode_str(u
|
|
return mode < ARRAY_SIZE(modestr) ? modestr[mode] : "unknown";
|
|
}
|
|
|
|
+static unsigned int phylink_interface_signal_rate(phy_interface_t interface)
|
|
+{
|
|
+ switch (interface) {
|
|
+ case PHY_INTERFACE_MODE_SGMII:
|
|
+ case PHY_INTERFACE_MODE_1000BASEX: /* 1.25Mbd */
|
|
+ return 1250;
|
|
+ case PHY_INTERFACE_MODE_2500BASEX: /* 3.125Mbd */
|
|
+ return 3125;
|
|
+ case PHY_INTERFACE_MODE_5GBASER: /* 5.15625Mbd */
|
|
+ return 5156;
|
|
+ case PHY_INTERFACE_MODE_10GBASER: /* 10.3125Mbd */
|
|
+ return 10313;
|
|
+ default:
|
|
+ return 0;
|
|
+ }
|
|
+}
|
|
+
|
|
/**
|
|
* phylink_interface_max_speed() - get the maximum speed of a phy interface
|
|
* @interface: phy interface mode defined by &typedef phy_interface_t
|
|
@@ -1024,6 +1041,7 @@ static void phylink_major_config(struct
|
|
{
|
|
struct phylink_pcs *pcs = NULL;
|
|
bool pcs_changed = false;
|
|
+ unsigned int rate_kbd;
|
|
int err;
|
|
|
|
phylink_dbg(pl, "major config %s\n", phy_modes(state->interface));
|
|
@@ -1083,6 +1101,12 @@ static void phylink_major_config(struct
|
|
ERR_PTR(err));
|
|
}
|
|
|
|
+ if (pl->sfp_bus) {
|
|
+ rate_kbd = phylink_interface_signal_rate(state->interface);
|
|
+ if (rate_kbd)
|
|
+ sfp_upstream_set_signal_rate(pl->sfp_bus, rate_kbd);
|
|
+ }
|
|
+
|
|
phylink_pcs_poll_start(pl);
|
|
}
|
|
|
|
--- a/drivers/net/phy/sfp-bus.c
|
|
+++ b/drivers/net/phy/sfp-bus.c
|
|
@@ -586,6 +586,26 @@ static void sfp_upstream_clear(struct sf
|
|
}
|
|
|
|
/**
|
|
+ * sfp_upstream_set_signal_rate() - set data signalling rate
|
|
+ * @bus: a pointer to the &struct sfp_bus structure for the sfp module
|
|
+ * @rate_kbd: signalling rate in units of 1000 baud
|
|
+ *
|
|
+ * Configure the rate select settings on the SFP module for the signalling
|
|
+ * rate (not the same as the data rate).
|
|
+ *
|
|
+ * Locks that may be held:
|
|
+ * Phylink's state_mutex
|
|
+ * rtnl lock
|
|
+ * SFP's sm_mutex
|
|
+ */
|
|
+void sfp_upstream_set_signal_rate(struct sfp_bus *bus, unsigned int rate_kbd)
|
|
+{
|
|
+ if (bus->registered)
|
|
+ bus->socket_ops->set_signal_rate(bus->sfp, rate_kbd);
|
|
+}
|
|
+EXPORT_SYMBOL_GPL(sfp_upstream_set_signal_rate);
|
|
+
|
|
+/**
|
|
* sfp_bus_find_fwnode() - parse and locate the SFP bus from fwnode
|
|
* @fwnode: firmware node for the parent device (MAC or PHY)
|
|
*
|
|
--- a/drivers/net/phy/sfp.c
|
|
+++ b/drivers/net/phy/sfp.c
|
|
@@ -2474,6 +2474,10 @@ static void sfp_stop(struct sfp *sfp)
|
|
sfp_sm_event(sfp, SFP_E_DEV_DOWN);
|
|
}
|
|
|
|
+static void sfp_set_signal_rate(struct sfp *sfp, unsigned int rate_kbd)
|
|
+{
|
|
+}
|
|
+
|
|
static int sfp_module_info(struct sfp *sfp, struct ethtool_modinfo *modinfo)
|
|
{
|
|
/* locking... and check module is present */
|
|
@@ -2552,6 +2556,7 @@ static const struct sfp_socket_ops sfp_m
|
|
.detach = sfp_detach,
|
|
.start = sfp_start,
|
|
.stop = sfp_stop,
|
|
+ .set_signal_rate = sfp_set_signal_rate,
|
|
.module_info = sfp_module_info,
|
|
.module_eeprom = sfp_module_eeprom,
|
|
.module_eeprom_by_page = sfp_module_eeprom_by_page,
|
|
--- a/drivers/net/phy/sfp.h
|
|
+++ b/drivers/net/phy/sfp.h
|
|
@@ -19,6 +19,7 @@ struct sfp_socket_ops {
|
|
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);
|
|
--- a/include/linux/sfp.h
|
|
+++ b/include/linux/sfp.h
|
|
@@ -547,6 +547,7 @@ int sfp_get_module_eeprom_by_page(struct
|
|
struct netlink_ext_ack *extack);
|
|
void sfp_upstream_start(struct sfp_bus *bus);
|
|
void sfp_upstream_stop(struct sfp_bus *bus);
|
|
+void sfp_upstream_set_signal_rate(struct sfp_bus *bus, unsigned int rate_kbd);
|
|
void sfp_bus_put(struct sfp_bus *bus);
|
|
struct sfp_bus *sfp_bus_find_fwnode(const struct fwnode_handle *fwnode);
|
|
int sfp_bus_add_upstream(struct sfp_bus *bus, void *upstream,
|
|
@@ -606,6 +607,11 @@ static inline void sfp_upstream_stop(str
|
|
{
|
|
}
|
|
|
|
+static inline void sfp_upstream_set_signal_rate(struct sfp_bus *bus,
|
|
+ unsigned int rate_kbd)
|
|
+{
|
|
+}
|
|
+
|
|
static inline void sfp_bus_put(struct sfp_bus *bus)
|
|
{
|
|
}
|