diff options
| author | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2023-05-17 12:38:12 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-05-19 04:52:31 +0200 |
| commit | dc18582211b34bce8250ddf3cac2a2230e192120 (patch) | |
| tree | d54b7d06c83fada4f9275feaa09cf6462ed1d724 /drivers/net/phy/phylink.c | |
| parent | net: sfp: change st_mutex locking (diff) | |
| download | linux-dc18582211b34bce8250ddf3cac2a2230e192120.tar.xz linux-dc18582211b34bce8250ddf3cac2a2230e192120.zip | |
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>
Diffstat (limited to 'drivers/net/phy/phylink.c')
| -rw-r--r-- | drivers/net/phy/phylink.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c index dc9a740b1ff7..f2106d17847a 100644 --- a/drivers/net/phy/phylink.c +++ b/drivers/net/phy/phylink.c @@ -156,6 +156,23 @@ static const char *phylink_an_mode_str(unsigned int mode) 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 @@ -1025,6 +1042,7 @@ static void phylink_major_config(struct phylink *pl, bool restart, { 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)); @@ -1084,6 +1102,12 @@ static void phylink_major_config(struct phylink *pl, bool restart, 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); } |