diff options
| author | Kevin Bowling <kbowling@FreeBSD.org> | 2026-07-29 04:23:30 +0000 |
|---|---|---|
| committer | Kevin Bowling <kbowling@FreeBSD.org> | 2026-07-30 05:05:32 +0000 |
| commit | c637d474045a41b1763c17a8b4b7763d4159504f (patch) | |
| tree | 44939ee3960d96bb4dfdbae7ecbc45554408d79b | |
| parent | 9332fd555588ef4f7913664f8bdb57febc828e76 (diff) | |
igb: Stop writing the legacy TADV register
TADV is an em-class interrupt delay register and is absent from the
82575 and later register model. The igb attach path does not expose or
initialize that control, but transmit initialization still wrote its
zero valued storage into a reserved queue-window offset.
Apply the same igb_mac_min boundary already used for TIDV and the
absolute-delay sysctls.
MFC after: 1 week
Sponsored by: BBOX.io
| -rw-r--r-- | sys/dev/e1000/if_em.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/dev/e1000/if_em.c b/sys/dev/e1000/if_em.c index 4f4eeee5da50..0f60178ae3c8 100644 --- a/sys/dev/e1000/if_em.c +++ b/sys/dev/e1000/if_em.c @@ -4208,7 +4208,7 @@ em_initialize_transmit_unit(if_ctx_t ctx) sc->txd_cmd |= E1000_TXD_CMD_IDE; } - if (hw->mac.type >= e1000_82540) + if (hw->mac.type >= e1000_82540 && hw->mac.type < igb_mac_min) E1000_WRITE_REG(hw, E1000_TADV, sc->tx_abs_int_delay.value); if (hw->mac.type == e1000_82571 || hw->mac.type == e1000_82572) { |