diff options
| author | Vladimir Oltean <vladimir.oltean@nxp.com> | 2020-07-05 19:16:24 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-07-06 01:25:58 +0300 |
| commit | 151a7cee728a89d909096f552108692905b66aaa (patch) | |
| tree | 640d04cb81b5a6f9984c94cb71d1aaf926018df1 /drivers/net/dsa/ocelot | |
| parent | da1c4ba1f741ee8f7a7f88d52bc2482fae26200d (diff) | |
| download | linux-151a7cee728a89d909096f552108692905b66aaa.tar.xz | |
net: dsa: felix: set proper pause frame timers based on link speed
state->speed holds a value of 10, 100, 1000 or 2500, but
SYS_MAC_FC_CFG_FC_LINK_SPEED expects a value in the range 0, 1, 2 or 3.
So set the correct speed encoding into this register.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa/ocelot')
| -rw-r--r-- | drivers/net/dsa/ocelot/felix.c | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c index 4d819cc45bed..4684339012c5 100644 --- a/drivers/net/dsa/ocelot/felix.c +++ b/drivers/net/dsa/ocelot/felix.c @@ -250,10 +250,25 @@ static void felix_phylink_mac_config(struct dsa_switch *ds, int port, DEV_CLOCK_CFG_LINK_SPEED(OCELOT_SPEED_1000), DEV_CLOCK_CFG); - /* Flow control. Link speed is only used here to evaluate the time - * specification in incoming pause frames. - */ - mac_fc_cfg = SYS_MAC_FC_CFG_FC_LINK_SPEED(state->speed); + switch (state->speed) { + case SPEED_10: + mac_fc_cfg = SYS_MAC_FC_CFG_FC_LINK_SPEED(3); + break; + case SPEED_100: + mac_fc_cfg = SYS_MAC_FC_CFG_FC_LINK_SPEED(2); + break; + case SPEED_1000: + case SPEED_2500: + mac_fc_cfg = SYS_MAC_FC_CFG_FC_LINK_SPEED(1); + break; + case SPEED_UNKNOWN: + mac_fc_cfg = SYS_MAC_FC_CFG_FC_LINK_SPEED(0); + break; + default: + dev_err(ocelot->dev, "Unsupported speed on port %d: %d\n", + port, state->speed); + return; + } /* handle Rx pause in all cases, with 2500base-X this is used for rate * adaptation. @@ -265,6 +280,10 @@ static void felix_phylink_mac_config(struct dsa_switch *ds, int port, SYS_MAC_FC_CFG_PAUSE_VAL_CFG(0xffff) | SYS_MAC_FC_CFG_FC_LATENCY_CFG(0x7) | SYS_MAC_FC_CFG_ZERO_PAUSE_ENA; + + /* Flow control. Link speed is only used here to evaluate the time + * specification in incoming pause frames. + */ ocelot_write_rix(ocelot, mac_fc_cfg, SYS_MAC_FC_CFG, port); ocelot_write_rix(ocelot, 0, ANA_POL_FLOWC, port); |