git: f4592cd2a4b0 - stable/13 - cxgbe(4): Keep link configuration compatible with really old firmwares.
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Date: Mon, 28 Feb 2022 06:55:40 UTC
The branch stable/13 has been updated by np: URL: https://cgit.FreeBSD.org/src/commit/?id=f4592cd2a4b040cdc279bc53d0a5905c350e7090 commit f4592cd2a4b040cdc279bc53d0a5905c350e7090 Author: Navdeep Parhar <np@FreeBSD.org> AuthorDate: 2021-11-11 00:10:41 +0000 Commit: Navdeep Parhar <np@FreeBSD.org> CommitDate: 2022-02-28 06:45:20 +0000 cxgbe(4): Keep link configuration compatible with really old firmwares. Sponsored by: Chelsio Communications (cherry picked from commit 8e76bae0b72e53da80c48ba138b1cfd712724df4) --- 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. */