Date: Wed, 24 May 2023 23:36:40 GMT From: Eric Joyner <erj@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 156424fce98a - main - ixgbe: Change if condition for RSS and rxcsum Message-ID: <202305242336.34ONaeUF094636@gitrepo.freebsd.org>
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The branch main has been updated by erj: URL: https://cgit.FreeBSD.org/src/commit/?id=156424fce98a0240c702da0a918b027d1979bfdb commit 156424fce98a0240c702da0a918b027d1979bfdb Author: Przemyslaw Lewandowski <przemyslawx.lewandowski@intel.com> AuthorDate: 2023-05-24 23:24:54 +0000 Commit: Eric Joyner <erj@FreeBSD.org> CommitDate: 2023-05-24 23:29:40 +0000 ixgbe: Change if condition for RSS and rxcsum This patch fixes TCP connection hangs for 1 rxq and 1 txq without rxcsum enabled. Documentation for 10G cards and other drivers suggest enabling rxcsum for RSS and disabling otherwise. When PCSD bit is not set then fragment checksum and IP identification are reported in the rx descriptor. When PCSD bit is set then RSS hash value is reported in the rx descriptor. RSS and RX IPP checksum are mutually exclusive. Signed-off-by: Eric Joyner <erj@FreeBSD.org> PR: 268910 Reviewed by: erj@ Tested by: jeffrey.e.pieper@intel.com MFC after: 1 week Sponsored by: Intel Corporation Differential Revision: https://reviews.freebsd.org/D38621 --- sys/dev/ixgbe/if_ix.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sys/dev/ixgbe/if_ix.c b/sys/dev/ixgbe/if_ix.c index 8df0e59a8346..0179c6456de8 100644 --- a/sys/dev/ixgbe/if_ix.c +++ b/sys/dev/ixgbe/if_ix.c @@ -754,7 +754,7 @@ ixgbe_initialize_receive_units(if_ctx_t ctx) ixgbe_initialize_rss_mapping(sc); - if (sc->num_rx_queues > 1) { + if (sc->feat_en & IXGBE_FEATURE_RSS) { /* RSS and RX IPP Checksum are mutually exclusive */ rxcsum |= IXGBE_RXCSUM_PCSD; }
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