In an effort to have a better representation of Ethernet ports,
introduce enumeration values representing the various ethernet Mediums.
This is part of the 802.3 naming convention, for example :
1000 Base T 4
| | | |
| | | \_ pairs (4)
| | \___ Medium (T == Twisted Copper Pairs)
| \_______ Baseband transmission
\____________ Speed
Other example :
10000 Base K X 4
| | \_ lanes (4)
| \___ encoding (BaseX is 8b/10b while BaseR is 66b/64b)
\_____ Medium (K is backplane ethernet)
In the case of representing a physical port, only the medium and number
of pairs should be relevant. One exception would be 1000BaseX, which is
currently also used as a medium in what appears to be any of
1000BaseSX, 1000BaseCX and 1000BaseLX. This was reflected in the mediums
associated with the 1000BaseX linkmode.
These mediums are set in the net/ethtool/common.c lookup table that
maintains a list of all linkmodes with their number of pairs, medium,
encoding, speed and duplex.
One notable exception to this is 100M BaseT Ethernet. 100BaseTX is a
2-pairs protocol but it will also work on 4-pairs cables, so the lookup
table contains 2 sets of pair numbers, indicating the min number of pairs
for a protocol to work and the "nominal" number of pairs as well.
Another set of exceptions are linkmodes such 100000baseLR4_ER4, where
the same link mode seems to represent 100GBaseLR4 and 100GBaseER4. The
macro __DEFINE_LINK_MODE_PARAMS_MEDIUMS is here used to populate the
.mediums bitfield with all appropriate mediums.
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
---
drivers/net/phy/phy_caps.c | 8 ++
include/linux/ethtool.h | 25 +++-
net/ethtool/common.c | 260 +++++++++++++++++++++----------------
3 files changed, 177 insertions(+), 116 deletions(-)
diff --git a/drivers/net/phy/phy_caps.c b/drivers/net/phy/phy_caps.c
index 3a05982b39bf..a0fa242723d7 100644
--- a/drivers/net/phy/phy_caps.c
+++ b/drivers/net/phy/phy_caps.c
@@ -80,6 +80,14 @@ int __init phy_caps_init(void)
/* Fill the caps array from net/ethtool/common.c */
for (i = 0; i < __ETHTOOL_LINK_MODE_MASK_NBITS; i++) {
linkmode = &link_mode_params[i];
+
+ /* Sanity check the linkmodes array for number of pairs */
+ if (linkmode->pairs < linkmode->min_pairs) {
+ pr_err("Pairs count must not be under min_pairs for linkmode %d\n",
+ i);
+ return -EINVAL;
+ }
+
capa = speed_duplex_to_capa(linkmode->speed, linkmode->duplex);
if (capa < 0) {
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index 5c9162193d26..37aede6af96f 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -216,13 +216,32 @@ static inline u8 *ethtool_rxfh_context_key(struct ethtool_rxfh_context *ctx)
void ethtool_rxfh_context_lost(struct net_device *dev, u32 context_id);
struct link_mode_info {
- int speed;
- u8 lanes;
- u8 duplex;
+ int speed;
+ u8 lanes;
+ u8 min_pairs;
+ u8 pairs;
+ u8 duplex;
+ u16 mediums;
};
extern const struct link_mode_info link_mode_params[];
+enum ethtool_link_medium {
+ ETHTOOL_LINK_MEDIUM_BASET = 0,
+ ETHTOOL_LINK_MEDIUM_BASEK,
+ ETHTOOL_LINK_MEDIUM_BASES,
+ ETHTOOL_LINK_MEDIUM_BASEC,
+ ETHTOOL_LINK_MEDIUM_BASEL,
+ ETHTOOL_LINK_MEDIUM_BASED,
+ ETHTOOL_LINK_MEDIUM_BASEE,
+ ETHTOOL_LINK_MEDIUM_BASEF,
+ ETHTOOL_LINK_MEDIUM_BASEV,
+ ETHTOOL_LINK_MEDIUM_BASEMLD,
+ ETHTOOL_LINK_MEDIUM_NONE,
+
+ __ETHTOOL_LINK_MEDIUM_LAST,
+};
+
/* declare a link mode bitmap */
#define __ETHTOOL_DECLARE_LINK_MODE_MASK(name) \
DECLARE_BITMAP(name, __ETHTOOL_LINK_MODE_MASK_NBITS)
diff --git a/net/ethtool/common.c b/net/ethtool/common.c
index 369c05cf8163..8e8f11e412bf 100644
--- a/net/ethtool/common.c
+++ b/net/ethtool/common.c
@@ -285,12 +285,35 @@ static_assert(ARRAY_SIZE(link_mode_names) == __ETHTOOL_LINK_MODE_MASK_NBITS);
#define __LINK_MODE_LANES_DR8_2 8
#define __LINK_MODE_LANES_T1BRR 1
-#define __DEFINE_LINK_MODE_PARAMS(_speed, _type, _duplex) \
+#define __DEFINE_LINK_MODE_PARAMS_PAIRS(_speed, _type, _min_pairs, _pairs, _duplex, _medium) \
[ETHTOOL_LINK_MODE(_speed, _type, _duplex)] = { \
.speed = SPEED_ ## _speed, \
.lanes = __LINK_MODE_LANES_ ## _type, \
- .duplex = __DUPLEX_ ## _duplex \
+ .min_pairs = _min_pairs, \
+ .pairs = _pairs, \
+ .duplex = __DUPLEX_ ## _duplex, \
+ .mediums = BIT(ETHTOOL_LINK_MEDIUM_BASE ## _medium) \
}
+
+#define __DEFINE_LINK_MODE_PARAMS(_speed, _type, _duplex, _medium) \
+ [ETHTOOL_LINK_MODE(_speed, _type, _duplex)] = { \
+ .speed = SPEED_ ## _speed, \
+ .lanes = __LINK_MODE_LANES_ ## _type, \
+ .min_pairs = 0, \
+ .pairs = 0, \
+ .duplex = __DUPLEX_ ## _duplex, \
+ .mediums = BIT(ETHTOOL_LINK_MEDIUM_BASE ## _medium) \
+ }
+#define __DEFINE_LINK_MODE_PARAMS_MEDIUMS(_speed, _type, _duplex, _mediums) \
+ [ETHTOOL_LINK_MODE(_speed, _type, _duplex)] = { \
+ .speed = SPEED_ ## _speed, \
+ .lanes = __LINK_MODE_LANES_ ## _type, \
+ .min_pairs = 0, \
+ .pairs = 0, \
+ .duplex = __DUPLEX_ ## _duplex, \
+ .mediums = (_mediums) \
+ }
+#define __MED(_medium) (BIT(ETHTOOL_LINK_MEDIUM_BASE ## _medium))
#define __DUPLEX_Half DUPLEX_HALF
#define __DUPLEX_Full DUPLEX_FULL
#define __DEFINE_SPECIAL_MODE_PARAMS(_mode) \
@@ -298,138 +321,149 @@ static_assert(ARRAY_SIZE(link_mode_names) == __ETHTOOL_LINK_MODE_MASK_NBITS);
.speed = SPEED_UNKNOWN, \
.lanes = 0, \
.duplex = DUPLEX_UNKNOWN, \
+ .mediums = BIT(ETHTOOL_LINK_MEDIUM_NONE), \
}
const struct link_mode_info link_mode_params[] = {
- __DEFINE_LINK_MODE_PARAMS(10, T, Half),
- __DEFINE_LINK_MODE_PARAMS(10, T, Full),
- __DEFINE_LINK_MODE_PARAMS(100, T, Half),
- __DEFINE_LINK_MODE_PARAMS(100, T, Full),
- __DEFINE_LINK_MODE_PARAMS(1000, T, Half),
- __DEFINE_LINK_MODE_PARAMS(1000, T, Full),
+ __DEFINE_LINK_MODE_PARAMS_PAIRS(10, T, 2, 4, Half, T),
+ __DEFINE_LINK_MODE_PARAMS_PAIRS(10, T, 2, 4, Full, T),
+ __DEFINE_LINK_MODE_PARAMS_PAIRS(100, T, 2, 4, Half, T),
+ __DEFINE_LINK_MODE_PARAMS_PAIRS(100, T, 2, 4, Full, T),
+ __DEFINE_LINK_MODE_PARAMS_PAIRS(1000, T, 4, 4, Half, T),
+ __DEFINE_LINK_MODE_PARAMS_PAIRS(1000, T, 4, 4, Full, T),
__DEFINE_SPECIAL_MODE_PARAMS(Autoneg),
__DEFINE_SPECIAL_MODE_PARAMS(TP),
__DEFINE_SPECIAL_MODE_PARAMS(AUI),
__DEFINE_SPECIAL_MODE_PARAMS(MII),
__DEFINE_SPECIAL_MODE_PARAMS(FIBRE),
__DEFINE_SPECIAL_MODE_PARAMS(BNC),
- __DEFINE_LINK_MODE_PARAMS(10000, T, Full),
+ __DEFINE_LINK_MODE_PARAMS_PAIRS(10000, T, 4, 4, Full, T),
__DEFINE_SPECIAL_MODE_PARAMS(Pause),
__DEFINE_SPECIAL_MODE_PARAMS(Asym_Pause),
- __DEFINE_LINK_MODE_PARAMS(2500, X, Full),
+ __DEFINE_LINK_MODE_PARAMS_MEDIUMS(2500, X, Full,
+ __MED(C) | __MED(S) | __MED(L)),
__DEFINE_SPECIAL_MODE_PARAMS(Backplane),
- __DEFINE_LINK_MODE_PARAMS(1000, KX, Full),
- __DEFINE_LINK_MODE_PARAMS(10000, KX4, Full),
- __DEFINE_LINK_MODE_PARAMS(10000, KR, Full),
+ __DEFINE_LINK_MODE_PARAMS(1000, KX, Full, K),
+ __DEFINE_LINK_MODE_PARAMS(10000, KX4, Full, K),
+ __DEFINE_LINK_MODE_PARAMS(10000, KR, Full, K),
[ETHTOOL_LINK_MODE_10000baseR_FEC_BIT] = {
.speed = SPEED_10000,
.lanes = 1,
.duplex = DUPLEX_FULL,
},
- __DEFINE_LINK_MODE_PARAMS(20000, MLD2, Full),
- __DEFINE_LINK_MODE_PARAMS(20000, KR2, Full),
- __DEFINE_LINK_MODE_PARAMS(40000, KR4, Full),
- __DEFINE_LINK_MODE_PARAMS(40000, CR4, Full),
- __DEFINE_LINK_MODE_PARAMS(40000, SR4, Full),
- __DEFINE_LINK_MODE_PARAMS(40000, LR4, Full),
- __DEFINE_LINK_MODE_PARAMS(56000, KR4, Full),
- __DEFINE_LINK_MODE_PARAMS(56000, CR4, Full),
- __DEFINE_LINK_MODE_PARAMS(56000, SR4, Full),
- __DEFINE_LINK_MODE_PARAMS(56000, LR4, Full),
- __DEFINE_LINK_MODE_PARAMS(25000, CR, Full),
- __DEFINE_LINK_MODE_PARAMS(25000, KR, Full),
- __DEFINE_LINK_MODE_PARAMS(25000, SR, Full),
- __DEFINE_LINK_MODE_PARAMS(50000, CR2, Full),
- __DEFINE_LINK_MODE_PARAMS(50000, KR2, Full),
- __DEFINE_LINK_MODE_PARAMS(100000, KR4, Full),
- __DEFINE_LINK_MODE_PARAMS(100000, SR4, Full),
- __DEFINE_LINK_MODE_PARAMS(100000, CR4, Full),
- __DEFINE_LINK_MODE_PARAMS(100000, LR4_ER4, Full),
- __DEFINE_LINK_MODE_PARAMS(50000, SR2, Full),
- __DEFINE_LINK_MODE_PARAMS(1000, X, Full),
- __DEFINE_LINK_MODE_PARAMS(10000, CR, Full),
- __DEFINE_LINK_MODE_PARAMS(10000, SR, Full),
- __DEFINE_LINK_MODE_PARAMS(10000, LR, Full),
- __DEFINE_LINK_MODE_PARAMS(10000, LRM, Full),
- __DEFINE_LINK_MODE_PARAMS(10000, ER, Full),
- __DEFINE_LINK_MODE_PARAMS(2500, T, Full),
- __DEFINE_LINK_MODE_PARAMS(5000, T, Full),
+ __DEFINE_LINK_MODE_PARAMS(20000, MLD2, Full, MLD),
+ __DEFINE_LINK_MODE_PARAMS(20000, KR2, Full, K),
+ __DEFINE_LINK_MODE_PARAMS(40000, KR4, Full, K),
+ __DEFINE_LINK_MODE_PARAMS(40000, CR4, Full, C),
+ __DEFINE_LINK_MODE_PARAMS(40000, SR4, Full, S),
+ __DEFINE_LINK_MODE_PARAMS(40000, LR4, Full, L),
+ __DEFINE_LINK_MODE_PARAMS(56000, KR4, Full, K),
+ __DEFINE_LINK_MODE_PARAMS(56000, CR4, Full, C),
+ __DEFINE_LINK_MODE_PARAMS(56000, SR4, Full, S),
+ __DEFINE_LINK_MODE_PARAMS(56000, LR4, Full, L),
+ __DEFINE_LINK_MODE_PARAMS(25000, CR, Full, C),
+ __DEFINE_LINK_MODE_PARAMS(25000, KR, Full, K),
+ __DEFINE_LINK_MODE_PARAMS(25000, SR, Full, S),
+ __DEFINE_LINK_MODE_PARAMS(50000, CR2, Full, C),
+ __DEFINE_LINK_MODE_PARAMS(50000, KR2, Full, K),
+ __DEFINE_LINK_MODE_PARAMS(100000, KR4, Full, K),
+ __DEFINE_LINK_MODE_PARAMS(100000, SR4, Full, S),
+ __DEFINE_LINK_MODE_PARAMS(100000, CR4, Full, C),
+ __DEFINE_LINK_MODE_PARAMS_MEDIUMS(100000, LR4_ER4, Full,
+ __MED(L) | __MED(E)),
+ __DEFINE_LINK_MODE_PARAMS(50000, SR2, Full, S),
+ __DEFINE_LINK_MODE_PARAMS_MEDIUMS(1000, X, Full,
+ __MED(C) | __MED(S) | __MED(L)),
+ __DEFINE_LINK_MODE_PARAMS(10000, CR, Full, C),
+ __DEFINE_LINK_MODE_PARAMS(10000, SR, Full, S),
+ __DEFINE_LINK_MODE_PARAMS(10000, LR, Full, L),
+ __DEFINE_LINK_MODE_PARAMS(10000, LRM, Full, L),
+ __DEFINE_LINK_MODE_PARAMS(10000, ER, Full, E),
+ __DEFINE_LINK_MODE_PARAMS_PAIRS(2500, T, 4, 4, Full, T),
+ __DEFINE_LINK_MODE_PARAMS_PAIRS(5000, T, 4, 4, Full, T),
__DEFINE_SPECIAL_MODE_PARAMS(FEC_NONE),
__DEFINE_SPECIAL_MODE_PARAMS(FEC_RS),
__DEFINE_SPECIAL_MODE_PARAMS(FEC_BASER),
- __DEFINE_LINK_MODE_PARAMS(50000, KR, Full),
- __DEFINE_LINK_MODE_PARAMS(50000, SR, Full),
- __DEFINE_LINK_MODE_PARAMS(50000, CR, Full),
- __DEFINE_LINK_MODE_PARAMS(50000, LR_ER_FR, Full),
- __DEFINE_LINK_MODE_PARAMS(50000, DR, Full),
- __DEFINE_LINK_MODE_PARAMS(100000, KR2, Full),
- __DEFINE_LINK_MODE_PARAMS(100000, SR2, Full),
- __DEFINE_LINK_MODE_PARAMS(100000, CR2, Full),
- __DEFINE_LINK_MODE_PARAMS(100000, LR2_ER2_FR2, Full),
- __DEFINE_LINK_MODE_PARAMS(100000, DR2, Full),
- __DEFINE_LINK_MODE_PARAMS(200000, KR4, Full),
- __DEFINE_LINK_MODE_PARAMS(200000, SR4, Full),
- __DEFINE_LINK_MODE_PARAMS(200000, LR4_ER4_FR4, Full),
- __DEFINE_LINK_MODE_PARAMS(200000, DR4, Full),
- __DEFINE_LINK_MODE_PARAMS(200000, CR4, Full),
- __DEFINE_LINK_MODE_PARAMS(100, T1, Full),
- __DEFINE_LINK_MODE_PARAMS(1000, T1, Full),
- __DEFINE_LINK_MODE_PARAMS(400000, KR8, Full),
- __DEFINE_LINK_MODE_PARAMS(400000, SR8, Full),
- __DEFINE_LINK_MODE_PARAMS(400000, LR8_ER8_FR8, Full),
- __DEFINE_LINK_MODE_PARAMS(400000, DR8, Full),
- __DEFINE_LINK_MODE_PARAMS(400000, CR8, Full),
+ __DEFINE_LINK_MODE_PARAMS(50000, KR, Full, K),
+ __DEFINE_LINK_MODE_PARAMS(50000, SR, Full, S),
+ __DEFINE_LINK_MODE_PARAMS(50000, CR, Full, C),
+ __DEFINE_LINK_MODE_PARAMS_MEDIUMS(50000, LR_ER_FR, Full,
+ __MED(L) | __MED(E) | __MED(F)),
+ __DEFINE_LINK_MODE_PARAMS(50000, DR, Full, D),
+ __DEFINE_LINK_MODE_PARAMS(100000, KR2, Full, K),
+ __DEFINE_LINK_MODE_PARAMS(100000, SR2, Full, S),
+ __DEFINE_LINK_MODE_PARAMS(100000, CR2, Full, C),
+ __DEFINE_LINK_MODE_PARAMS_MEDIUMS(100000, LR2_ER2_FR2, Full,
+ __MED(L) | __MED(E) | __MED(F)),
+ __DEFINE_LINK_MODE_PARAMS(100000, DR2, Full, D),
+ __DEFINE_LINK_MODE_PARAMS(200000, KR4, Full, K),
+ __DEFINE_LINK_MODE_PARAMS(200000, SR4, Full, S),
+ __DEFINE_LINK_MODE_PARAMS_MEDIUMS(200000, LR4_ER4_FR4, Full,
+ __MED(L) | __MED(E) | __MED(F)),
+ __DEFINE_LINK_MODE_PARAMS(200000, DR4, Full, D),
+ __DEFINE_LINK_MODE_PARAMS(200000, CR4, Full, C),
+ __DEFINE_LINK_MODE_PARAMS_PAIRS(100, T1, 1, 1, Full, T),
+ __DEFINE_LINK_MODE_PARAMS_PAIRS(1000, T1, 1, 1, Full, T),
+ __DEFINE_LINK_MODE_PARAMS(400000, KR8, Full, K),
+ __DEFINE_LINK_MODE_PARAMS(400000, SR8, Full, S),
+ __DEFINE_LINK_MODE_PARAMS_MEDIUMS(400000, LR8_ER8_FR8, Full,
+ __MED(L) | __MED(E) | __MED(F)),
+ __DEFINE_LINK_MODE_PARAMS(400000, DR8, Full, D),
+ __DEFINE_LINK_MODE_PARAMS(400000, CR8, Full, C),
__DEFINE_SPECIAL_MODE_PARAMS(FEC_LLRS),
- __DEFINE_LINK_MODE_PARAMS(100000, KR, Full),
- __DEFINE_LINK_MODE_PARAMS(100000, SR, Full),
- __DEFINE_LINK_MODE_PARAMS(100000, LR_ER_FR, Full),
- __DEFINE_LINK_MODE_PARAMS(100000, DR, Full),
- __DEFINE_LINK_MODE_PARAMS(100000, CR, Full),
- __DEFINE_LINK_MODE_PARAMS(200000, KR2, Full),
- __DEFINE_LINK_MODE_PARAMS(200000, SR2, Full),
- __DEFINE_LINK_MODE_PARAMS(200000, LR2_ER2_FR2, Full),
- __DEFINE_LINK_MODE_PARAMS(200000, DR2, Full),
- __DEFINE_LINK_MODE_PARAMS(200000, CR2, Full),
- __DEFINE_LINK_MODE_PARAMS(400000, KR4, Full),
- __DEFINE_LINK_MODE_PARAMS(400000, SR4, Full),
- __DEFINE_LINK_MODE_PARAMS(400000, LR4_ER4_FR4, Full),
- __DEFINE_LINK_MODE_PARAMS(400000, DR4, Full),
- __DEFINE_LINK_MODE_PARAMS(400000, CR4, Full),
- __DEFINE_LINK_MODE_PARAMS(100, FX, Half),
- __DEFINE_LINK_MODE_PARAMS(100, FX, Full),
- __DEFINE_LINK_MODE_PARAMS(10, T1L, Full),
- __DEFINE_LINK_MODE_PARAMS(800000, CR8, Full),
- __DEFINE_LINK_MODE_PARAMS(800000, KR8, Full),
- __DEFINE_LINK_MODE_PARAMS(800000, DR8, Full),
- __DEFINE_LINK_MODE_PARAMS(800000, DR8_2, Full),
- __DEFINE_LINK_MODE_PARAMS(800000, SR8, Full),
- __DEFINE_LINK_MODE_PARAMS(800000, VR8, Full),
- __DEFINE_LINK_MODE_PARAMS(10, T1S, Full),
- __DEFINE_LINK_MODE_PARAMS(10, T1S, Half),
- __DEFINE_LINK_MODE_PARAMS(10, T1S_P2MP, Half),
- __DEFINE_LINK_MODE_PARAMS(10, T1BRR, Full),
- __DEFINE_LINK_MODE_PARAMS(200000, CR, Full),
- __DEFINE_LINK_MODE_PARAMS(200000, KR, Full),
- __DEFINE_LINK_MODE_PARAMS(200000, DR, Full),
- __DEFINE_LINK_MODE_PARAMS(200000, DR_2, Full),
- __DEFINE_LINK_MODE_PARAMS(200000, SR, Full),
- __DEFINE_LINK_MODE_PARAMS(200000, VR, Full),
- __DEFINE_LINK_MODE_PARAMS(400000, CR2, Full),
- __DEFINE_LINK_MODE_PARAMS(400000, KR2, Full),
- __DEFINE_LINK_MODE_PARAMS(400000, DR2, Full),
- __DEFINE_LINK_MODE_PARAMS(400000, DR2_2, Full),
- __DEFINE_LINK_MODE_PARAMS(400000, SR2, Full),
- __DEFINE_LINK_MODE_PARAMS(400000, VR2, Full),
- __DEFINE_LINK_MODE_PARAMS(800000, CR4, Full),
- __DEFINE_LINK_MODE_PARAMS(800000, KR4, Full),
- __DEFINE_LINK_MODE_PARAMS(800000, DR4, Full),
- __DEFINE_LINK_MODE_PARAMS(800000, DR4_2, Full),
- __DEFINE_LINK_MODE_PARAMS(800000, SR4, Full),
- __DEFINE_LINK_MODE_PARAMS(800000, VR4, Full),
- __DEFINE_LINK_MODE_PARAMS(1600000, CR8, Full),
- __DEFINE_LINK_MODE_PARAMS(1600000, KR8, Full),
- __DEFINE_LINK_MODE_PARAMS(1600000, DR8, Full),
- __DEFINE_LINK_MODE_PARAMS(1600000, DR8_2, Full),
+ __DEFINE_LINK_MODE_PARAMS(100000, KR, Full, K),
+ __DEFINE_LINK_MODE_PARAMS(100000, SR, Full, S),
+ __DEFINE_LINK_MODE_PARAMS_MEDIUMS(100000, LR_ER_FR, Full,
+ __MED(L) | __MED(E) | __MED(F)),
+ __DEFINE_LINK_MODE_PARAMS(100000, DR, Full, D),
+ __DEFINE_LINK_MODE_PARAMS(100000, CR, Full, C),
+ __DEFINE_LINK_MODE_PARAMS(200000, KR2, Full, K),
+ __DEFINE_LINK_MODE_PARAMS(200000, SR2, Full, S),
+ __DEFINE_LINK_MODE_PARAMS_MEDIUMS(200000, LR2_ER2_FR2, Full,
+ __MED(L) | __MED(E) | __MED(F)),
+ __DEFINE_LINK_MODE_PARAMS(200000, DR2, Full, D),
+ __DEFINE_LINK_MODE_PARAMS(200000, CR2, Full, C),
+ __DEFINE_LINK_MODE_PARAMS(400000, KR4, Full, K),
+ __DEFINE_LINK_MODE_PARAMS(400000, SR4, Full, S),
+ __DEFINE_LINK_MODE_PARAMS_MEDIUMS(400000, LR4_ER4_FR4, Full,
+ __MED(L) | __MED(E) | __MED(F)),
+ __DEFINE_LINK_MODE_PARAMS(400000, DR4, Full, D),
+ __DEFINE_LINK_MODE_PARAMS(400000, CR4, Full, C),
+ __DEFINE_LINK_MODE_PARAMS(100, FX, Half, F),
+ __DEFINE_LINK_MODE_PARAMS(100, FX, Full, F),
+ __DEFINE_LINK_MODE_PARAMS_PAIRS(10, T1L, 1, 1, Full, T),
+ __DEFINE_LINK_MODE_PARAMS(800000, CR8, Full, C),
+ __DEFINE_LINK_MODE_PARAMS(800000, KR8, Full, K),
+ __DEFINE_LINK_MODE_PARAMS(800000, DR8, Full, D),
+ __DEFINE_LINK_MODE_PARAMS(800000, DR8_2, Full, D),
+ __DEFINE_LINK_MODE_PARAMS(800000, SR8, Full, S),
+ __DEFINE_LINK_MODE_PARAMS(800000, VR8, Full, V),
+ __DEFINE_LINK_MODE_PARAMS_PAIRS(10, T1S, 1, 1, Full, T),
+ __DEFINE_LINK_MODE_PARAMS_PAIRS(10, T1S, 1, 1, Half, T),
+ __DEFINE_LINK_MODE_PARAMS_PAIRS(10, T1S_P2MP, 1, 1, Half, T),
+ __DEFINE_LINK_MODE_PARAMS_PAIRS(10, T1BRR, 1, 1, Full, T),
+ __DEFINE_LINK_MODE_PARAMS(200000, CR, Full, C),
+ __DEFINE_LINK_MODE_PARAMS(200000, KR, Full, K),
+ __DEFINE_LINK_MODE_PARAMS(200000, DR, Full, D),
+ __DEFINE_LINK_MODE_PARAMS(200000, DR_2, Full, D),
+ __DEFINE_LINK_MODE_PARAMS(200000, SR, Full, S),
+ __DEFINE_LINK_MODE_PARAMS(200000, VR, Full, V),
+ __DEFINE_LINK_MODE_PARAMS(400000, CR2, Full, C),
+ __DEFINE_LINK_MODE_PARAMS(400000, KR2, Full, K),
+ __DEFINE_LINK_MODE_PARAMS(400000, DR2, Full, D),
+ __DEFINE_LINK_MODE_PARAMS(400000, DR2_2, Full, D),
+ __DEFINE_LINK_MODE_PARAMS(400000, SR2, Full, S),
+ __DEFINE_LINK_MODE_PARAMS(400000, VR2, Full, V),
+ __DEFINE_LINK_MODE_PARAMS(800000, CR4, Full, C),
+ __DEFINE_LINK_MODE_PARAMS(800000, KR4, Full, K),
+ __DEFINE_LINK_MODE_PARAMS(800000, DR4, Full, D),
+ __DEFINE_LINK_MODE_PARAMS(800000, DR4_2, Full, D),
+ __DEFINE_LINK_MODE_PARAMS(800000, SR4, Full, S),
+ __DEFINE_LINK_MODE_PARAMS(800000, VR4, Full, V),
+ __DEFINE_LINK_MODE_PARAMS(1600000, CR8, Full, C),
+ __DEFINE_LINK_MODE_PARAMS(1600000, KR8, Full, K),
+ __DEFINE_LINK_MODE_PARAMS(1600000, DR8, Full, D),
+ __DEFINE_LINK_MODE_PARAMS(1600000, DR8_2, Full, D),
};
static_assert(ARRAY_SIZE(link_mode_params) == __ETHTOOL_LINK_MODE_MASK_NBITS);
EXPORT_SYMBOL_GPL(link_mode_params);
--
2.49.0On Thu, Nov 27, 2025 at 06:17:45PM +0100, Maxime Chevallier wrote: > In an effort to have a better representation of Ethernet ports, > introduce enumeration values representing the various ethernet Mediums. > > This is part of the 802.3 naming convention, for example : > > 1000 Base T 4 > | | | | > | | | \_ pairs (4) > | | \___ Medium (T == Twisted Copper Pairs) > | \_______ Baseband transmission > \____________ Speed > > Other example : > > 10000 Base K X 4 > | | \_ lanes (4) > | \___ encoding (BaseX is 8b/10b while BaseR is 66b/64b) > \_____ Medium (K is backplane ethernet) > > In the case of representing a physical port, only the medium and number > of pairs should be relevant. One exception would be 1000BaseX, which is > currently also used as a medium in what appears to be any of > 1000BaseSX, 1000BaseCX and 1000BaseLX. This was reflected in the mediums > associated with the 1000BaseX linkmode. There's more than just those three for 1000BASE-X: SX LX CX EX BX10 - single fibre strand, single mode, 1310nm and 1490nm over 10km. to name a few more. SFP modules don't have a way to indicate EX, but do have a way to indicate 1000BASE-BX10 (BaseBX10 bit set with the rate indicating 1000M.) Also note that 100BASE-T encompasses 100BASE-TX (what we generally see as fast ethernet), 100BASE-T4, etc. Should we be getting these descriptions correct as we're introducing this level of detail? -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!
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