[4/9] net/txgbe: fix to set autoneg for 1G speed
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Commit Message
Autoneg was always on for 1G speed, fix to set autoneg off.
Fixes: 01c3cf5c85a7 ("net/txgbe: add autoneg control read and write")
Fixes: e4c515a7bc7e ("net/txgbe: add multi-speed link setup")
Cc: stable@dpdk.org
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
---
drivers/net/txgbe/base/txgbe_hw.c | 14 ++++++++++++++
drivers/net/txgbe/base/txgbe_phy.c | 4 +++-
drivers/net/txgbe/base/txgbe_type.h | 1 +
drivers/net/txgbe/txgbe_ethdev.c | 2 ++
4 files changed, 20 insertions(+), 1 deletion(-)
@@ -2273,10 +2273,24 @@ s32 txgbe_setup_mac_link_multispeed_fiber(struct txgbe_hw *hw,
}
if (speed & TXGBE_LINK_SPEED_1GB_FULL) {
+ u32 curr_autoneg;
+
speedcnt++;
if (highest_link_speed == TXGBE_LINK_SPEED_UNKNOWN)
highest_link_speed = TXGBE_LINK_SPEED_1GB_FULL;
+ status = hw->mac.check_link(hw, &link_speed, &link_up, false);
+ if (status != 0)
+ return status;
+
+ /* If we already have link at this speed, just jump out */
+ if (link_speed == TXGBE_LINK_SPEED_1GB_FULL) {
+ curr_autoneg = rd32_epcs(hw, SR_MII_MMD_CTL);
+ if (link_up && (hw->autoneg ==
+ !!(curr_autoneg & SR_MII_MMD_CTL_AN_EN)))
+ goto out;
+ }
+
/* Set the module link speed */
switch (hw->phy.media_type) {
case txgbe_media_type_fiber:
@@ -1402,7 +1402,9 @@ txgbe_set_sgmii_an37_ability(struct txgbe_hw *hw)
wr32_epcs(hw, SR_MII_MMD_AN_CTL, 0x0105);
wr32_epcs(hw, SR_MII_MMD_DIGI_CTL, 0x0200);
value = rd32_epcs(hw, SR_MII_MMD_CTL);
- value = (value & ~0x1200) | (0x1 << 12) | (0x1 << 9);
+ value = (value & ~0x1200) | (0x1 << 9);
+ if (hw->autoneg)
+ value |= SR_MII_MMD_CTL_AN_EN;
wr32_epcs(hw, SR_MII_MMD_CTL, value);
}
@@ -783,6 +783,7 @@ struct txgbe_hw {
bool allow_unsupported_sfp;
bool need_crosstalk_fix;
bool dev_start;
+ bool autoneg;
struct txgbe_devargs devarg;
uint64_t isb_dma;
@@ -1821,6 +1821,7 @@ txgbe_dev_start(struct rte_eth_dev *dev)
speed = (TXGBE_LINK_SPEED_100M_FULL |
TXGBE_LINK_SPEED_1GB_FULL |
TXGBE_LINK_SPEED_10GB_FULL);
+ hw->autoneg = true;
} else {
if (*link_speeds & RTE_ETH_LINK_SPEED_10G)
speed |= TXGBE_LINK_SPEED_10GB_FULL;
@@ -1832,6 +1833,7 @@ txgbe_dev_start(struct rte_eth_dev *dev)
speed |= TXGBE_LINK_SPEED_1GB_FULL;
if (*link_speeds & RTE_ETH_LINK_SPEED_100M)
speed |= TXGBE_LINK_SPEED_100M_FULL;
+ hw->autoneg = false;
}
err = hw->mac.setup_link(hw, speed, link_up);