git: d381c807510d - main - ix(4): Add control of 2.5/5G autonegotiation speeds
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Date: Fri, 04 Mar 2022 18:54:10 UTC
The branch main has been updated by erj:
URL: https://cgit.FreeBSD.org/src/commit/?id=d381c807510de2ebb453a563540bd17e344a2aab
commit d381c807510de2ebb453a563540bd17e344a2aab
Author: Piotr Pietruszewski <piotr.pietruszewski@intel.com>
AuthorDate: 2022-03-04 18:37:59 +0000
Commit: Eric Joyner <erj@FreeBSD.org>
CommitDate: 2022-03-04 18:53:07 +0000
ix(4): Add control of 2.5/5G autonegotiation speeds
This change enables the user to control 2.5G and 5G autonegotiation
speeds via advertise_speed sysctl for X550T devices. Due to reported
interoperability issues with switches, 2.5G and 5G speeds will not be
advertised by default.
Signed-off-by: Piotr Pietruszewski <piotr.pietruszewski@intel.com>
Co-authored-by: Krzysztof Galazka <krzysztof.galazka@intel.com>
Tested by: gowtham.kumar.ks@intel.com
MFC after: 3 days
Sponsored by: Intel Corporation
Differential Revision: https://reviews.freebsd.org/D26245
---
sys/dev/ixgbe/if_ix.c | 121 ++++++++++++++++++++++++++++++++++++++++++--------
sys/dev/ixgbe/ixgbe.h | 2 +
2 files changed, 104 insertions(+), 19 deletions(-)
diff --git a/sys/dev/ixgbe/if_ix.c b/sys/dev/ixgbe/if_ix.c
index 43b6a6e78b4c..3077fc9ac4f8 100644
--- a/sys/dev/ixgbe/if_ix.c
+++ b/sys/dev/ixgbe/if_ix.c
@@ -179,7 +179,7 @@ static void ixgbe_disable_rx_drop(struct ixgbe_softc *);
static void ixgbe_add_hw_stats(struct ixgbe_softc *);
static int ixgbe_set_flowcntl(struct ixgbe_softc *, int);
static int ixgbe_set_advertise(struct ixgbe_softc *, int);
-static int ixgbe_get_advertise(struct ixgbe_softc *);
+static int ixgbe_get_default_advertise(struct ixgbe_softc *);
static void ixgbe_setup_vlan_hw_support(if_ctx_t);
static void ixgbe_config_gpie(struct ixgbe_softc *);
static void ixgbe_config_delay_values(struct ixgbe_softc *);
@@ -1121,7 +1121,7 @@ ixgbe_if_attach_post(if_ctx_t ctx)
/* Set an initial dmac value */
sc->dmac = 0;
/* Set initial advertised speeds (if applicable) */
- sc->advertise = ixgbe_get_advertise(sc);
+ sc->advertise = ixgbe_get_default_advertise(sc);
if (sc->feat_cap & IXGBE_FEATURE_SRIOV)
ixgbe_define_iov_schemas(dev, &error);
@@ -1286,6 +1286,11 @@ ixgbe_add_media_types(if_ctx_t ctx)
if (layer & IXGBE_PHYSICAL_LAYER_10BASE_T)
ifmedia_add(sc->media, IFM_ETHER | IFM_10_T, 0, NULL);
+ if (hw->mac.type == ixgbe_mac_X550) {
+ ifmedia_add(sc->media, IFM_ETHER | IFM_2500_T, 0, NULL);
+ ifmedia_add(sc->media, IFM_ETHER | IFM_5000_T, 0, NULL);
+ }
+
if (layer & IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU ||
layer & IXGBE_PHYSICAL_LAYER_SFP_ACTIVE_DA)
ifmedia_add(sc->media, IFM_ETHER | IFM_10G_TWINAX, 0,
@@ -1407,6 +1412,36 @@ ixgbe_config_link(if_ctx_t ctx)
&negotiate);
if (err)
return;
+
+ if (hw->mac.type == ixgbe_mac_X550 &&
+ hw->phy.autoneg_advertised == 0) {
+ /*
+ * 2.5G and 5G autonegotiation speeds on X550
+ * are disabled by default due to reported
+ * interoperability issues with some switches.
+ *
+ * The second condition checks if any operations
+ * involving setting autonegotiation speeds have
+ * been performed prior to this ixgbe_config_link()
+ * call.
+ *
+ * If hw->phy.autoneg_advertised does not
+ * equal 0, this means that the user might have
+ * set autonegotiation speeds via the sysctl
+ * before bringing the interface up. In this
+ * case, we should not disable 2.5G and 5G
+ * since that speeds might be selected by the
+ * user.
+ *
+ * Otherwise (i.e. if hw->phy.autoneg_advertised
+ * is set to 0), it is the first time we set
+ * autonegotiation preferences and the default
+ * set of speeds should exclude 2.5G and 5G.
+ */
+ autoneg &= ~(IXGBE_LINK_SPEED_2_5GB_FULL |
+ IXGBE_LINK_SPEED_5GB_FULL);
+ }
+
if (hw->mac.ops.setup_link)
err = hw->mac.ops.setup_link(hw, autoneg,
sc->link_up);
@@ -2230,6 +2265,15 @@ ixgbe_if_media_status(if_ctx_t ctx, struct ifmediareq * ifmr)
ifmr->ifm_active |= IFM_10_T | IFM_FDX;
break;
}
+ if (hw->mac.type == ixgbe_mac_X550)
+ switch (sc->link_speed) {
+ case IXGBE_LINK_SPEED_5GB_FULL:
+ ifmr->ifm_active |= IFM_5000_T | IFM_FDX;
+ break;
+ case IXGBE_LINK_SPEED_2_5GB_FULL:
+ ifmr->ifm_active |= IFM_2500_T | IFM_FDX;
+ break;
+ }
if (layer & IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU ||
layer & IXGBE_PHYSICAL_LAYER_SFP_ACTIVE_DA)
switch (sc->link_speed) {
@@ -2406,6 +2450,12 @@ ixgbe_if_media_change(if_ctx_t ctx)
case IFM_10G_TWINAX:
speed |= IXGBE_LINK_SPEED_10GB_FULL;
break;
+ case IFM_5000_T:
+ speed |= IXGBE_LINK_SPEED_5GB_FULL;
+ break;
+ case IFM_2500_T:
+ speed |= IXGBE_LINK_SPEED_2_5GB_FULL;
+ break;
case IFM_100_TX:
speed |= IXGBE_LINK_SPEED_100_FULL;
break;
@@ -2419,10 +2469,12 @@ ixgbe_if_media_change(if_ctx_t ctx)
hw->mac.autotry_restart = true;
hw->mac.ops.setup_link(hw, speed, true);
sc->advertise =
- ((speed & IXGBE_LINK_SPEED_10GB_FULL) ? 4 : 0) |
- ((speed & IXGBE_LINK_SPEED_1GB_FULL) ? 2 : 0) |
- ((speed & IXGBE_LINK_SPEED_100_FULL) ? 1 : 0) |
- ((speed & IXGBE_LINK_SPEED_10_FULL) ? 8 : 0);
+ ((speed & IXGBE_LINK_SPEED_10GB_FULL) ? 0x4 : 0) |
+ ((speed & IXGBE_LINK_SPEED_5GB_FULL) ? 0x20 : 0) |
+ ((speed & IXGBE_LINK_SPEED_2_5GB_FULL) ? 0x10 : 0) |
+ ((speed & IXGBE_LINK_SPEED_1GB_FULL) ? 0x2 : 0) |
+ ((speed & IXGBE_LINK_SPEED_100_FULL) ? 0x1 : 0) |
+ ((speed & IXGBE_LINK_SPEED_10_FULL) ? 0x8 : 0);
return (0);
@@ -4093,10 +4145,13 @@ ixgbe_sysctl_advertise(SYSCTL_HANDLER_ARGS)
* ixgbe_set_advertise - Control advertised link speed
*
* Flags:
- * 0x1 - advertise 100 Mb
- * 0x2 - advertise 1G
- * 0x4 - advertise 10G
- * 0x8 - advertise 10 Mb (yes, Mb)
+ * 0x1 - advertise 100 Mb
+ * 0x2 - advertise 1G
+ * 0x4 - advertise 10G
+ * 0x8 - advertise 10 Mb (yes, Mb)
+ * 0x10 - advertise 2.5G (disabled by default)
+ * 0x20 - advertise 5G (disabled by default)
+ *
************************************************************************/
static int
ixgbe_set_advertise(struct ixgbe_softc *sc, int advertise)
@@ -4124,8 +4179,8 @@ ixgbe_set_advertise(struct ixgbe_softc *sc, int advertise)
return (EINVAL);
}
- if (advertise < 0x1 || advertise > 0xF) {
- device_printf(dev, "Invalid advertised speed; valid modes are 0x1 through 0xF\n");
+ if (advertise < 0x1 || advertise > 0x3F) {
+ device_printf(dev, "Invalid advertised speed; valid modes are 0x1 through 0x3F\n");
return (EINVAL);
}
@@ -4167,6 +4222,20 @@ ixgbe_set_advertise(struct ixgbe_softc *sc, int advertise)
}
speed |= IXGBE_LINK_SPEED_10_FULL;
}
+ if (advertise & 0x10) {
+ if (!(link_caps & IXGBE_LINK_SPEED_2_5GB_FULL)) {
+ device_printf(dev, "Interface does not support 2.5G advertised speed\n");
+ return (EINVAL);
+ }
+ speed |= IXGBE_LINK_SPEED_2_5GB_FULL;
+ }
+ if (advertise & 0x20) {
+ if (!(link_caps & IXGBE_LINK_SPEED_5GB_FULL)) {
+ device_printf(dev, "Interface does not support 5G advertised speed\n");
+ return (EINVAL);
+ }
+ speed |= IXGBE_LINK_SPEED_5GB_FULL;
+ }
hw->mac.autotry_restart = true;
hw->mac.ops.setup_link(hw, speed, true);
@@ -4176,7 +4245,7 @@ ixgbe_set_advertise(struct ixgbe_softc *sc, int advertise)
} /* ixgbe_set_advertise */
/************************************************************************
- * ixgbe_get_advertise - Get current advertised speed settings
+ * ixgbe_get_default_advertise - Get default advertised speed settings
*
* Formatted for sysctl usage.
* Flags:
@@ -4184,9 +4253,11 @@ ixgbe_set_advertise(struct ixgbe_softc *sc, int advertise)
* 0x2 - advertise 1G
* 0x4 - advertise 10G
* 0x8 - advertise 10 Mb (yes, Mb)
+ * 0x10 - advertise 2.5G (disabled by default)
+ * 0x20 - advertise 5G (disabled by default)
************************************************************************/
static int
-ixgbe_get_advertise(struct ixgbe_softc *sc)
+ixgbe_get_default_advertise(struct ixgbe_softc *sc)
{
struct ixgbe_hw *hw = &sc->hw;
int speed;
@@ -4206,14 +4277,26 @@ ixgbe_get_advertise(struct ixgbe_softc *sc)
if (err != IXGBE_SUCCESS)
return (0);
+ if (hw->mac.type == ixgbe_mac_X550) {
+ /*
+ * 2.5G and 5G autonegotiation speeds on X550
+ * are disabled by default due to reported
+ * interoperability issues with some switches.
+ */
+ link_caps &= ~(IXGBE_LINK_SPEED_2_5GB_FULL |
+ IXGBE_LINK_SPEED_5GB_FULL);
+ }
+
speed =
- ((link_caps & IXGBE_LINK_SPEED_10GB_FULL) ? 4 : 0) |
- ((link_caps & IXGBE_LINK_SPEED_1GB_FULL) ? 2 : 0) |
- ((link_caps & IXGBE_LINK_SPEED_100_FULL) ? 1 : 0) |
- ((link_caps & IXGBE_LINK_SPEED_10_FULL) ? 8 : 0);
+ ((link_caps & IXGBE_LINK_SPEED_10GB_FULL) ? 0x4 : 0) |
+ ((link_caps & IXGBE_LINK_SPEED_5GB_FULL) ? 0x20 : 0) |
+ ((link_caps & IXGBE_LINK_SPEED_2_5GB_FULL) ? 0x10 : 0) |
+ ((link_caps & IXGBE_LINK_SPEED_1GB_FULL) ? 0x2 : 0) |
+ ((link_caps & IXGBE_LINK_SPEED_100_FULL) ? 0x1 : 0) |
+ ((link_caps & IXGBE_LINK_SPEED_10_FULL) ? 0x8 : 0);
return speed;
-} /* ixgbe_get_advertise */
+} /* ixgbe_get_default_advertise */
/************************************************************************
* ixgbe_sysctl_dmac - Manage DMA Coalescing
diff --git a/sys/dev/ixgbe/ixgbe.h b/sys/dev/ixgbe/ixgbe.h
index e463fab7122b..0f81a0a2c2da 100644
--- a/sys/dev/ixgbe/ixgbe.h
+++ b/sys/dev/ixgbe/ixgbe.h
@@ -492,6 +492,8 @@ struct ixgbe_softc {
"\t0x2 - advertise 1G\n" \
"\t0x4 - advertise 10G\n" \
"\t0x8 - advertise 10M\n\n" \
+ "\t0x10 - advertise 2.5G\n" \
+ "\t0x20 - advertise 5G\n\n" \
"\t100M and 10M are only supported on certain adapters.\n"
#define IXGBE_SYSCTL_DESC_SET_FC \