The branch main has been updated by np:
URL:
https://cgit.FreeBSD.org/src/commit/?id=8e76bae0b72e53da80c48ba138b1cfd712724df4
commit 8e76bae0b72e53da80c48ba138b1cfd712724df4
Author: Navdeep Parhar <n...@freebsd.org>
AuthorDate: 2021-11-11 00:10:41 +0000
Commit: Navdeep Parhar <n...@freebsd.org>
CommitDate: 2021-11-15 18:18:04 +0000
cxgbe(4): Keep link configuration compatible with really old firmwares.
MFC after: 1 week
Sponsored by: Chelsio Communications
---
sys/dev/cxgbe/common/t4_hw.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/sys/dev/cxgbe/common/t4_hw.c b/sys/dev/cxgbe/common/t4_hw.c
index d6f85a1fcd34..e2b55dc71eba 100644
--- a/sys/dev/cxgbe/common/t4_hw.c
+++ b/sys/dev/cxgbe/common/t4_hw.c
@@ -3959,6 +3959,14 @@ int t4_link_l1cfg(struct adapter *adap, unsigned int
mbox, unsigned int port,
if (lc->requested_fec & FEC_MODULE)
fec |= fec_to_fwcap(lc->fec_hint);
}
+
+ /*
+ * This is for compatibility with old firmwares. The original
+ * way to request NO_FEC was to not set any of the FEC bits. New
+ * firmwares understand this too.
+ */
+ if (fec == FW_PORT_CAP32_FEC_NO_FEC)
+ fec = 0;
}
/* Force AN on for BT cards. */
