Date: Sat, 24 Nov 2018 16:31:09 +0000 (UTC) From: Andrew Rybchenko <arybchik@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r340893 - head/sys/dev/sfxge/common Message-ID: <201811241631.wAOGV90p088277@repo.freebsd.org>
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Author: arybchik Date: Sat Nov 24 16:31:08 2018 New Revision: 340893 URL: https://svnweb.freebsd.org/changeset/base/340893 Log: sfxge(4): expand on comment on number of queues field Expand on comment on RSS_CONTEXT_ALLOC_IN_NUM_QUEUES field. Submitted by: Mark Spender <mspender at solarflare.com> Sponsored by: Solarflare Communications, Inc. Differential Revision: https://reviews.freebsd.org/D18127 Modified: head/sys/dev/sfxge/common/ef10_rx.c Modified: head/sys/dev/sfxge/common/ef10_rx.c ============================================================================== --- head/sys/dev/sfxge/common/ef10_rx.c Sat Nov 24 16:30:57 2018 (r340892) +++ head/sys/dev/sfxge/common/ef10_rx.c Sat Nov 24 16:31:08 2018 (r340893) @@ -220,7 +220,13 @@ efx_mcdi_rss_context_alloc( MCDI_IN_SET_DWORD(req, RSS_CONTEXT_ALLOC_IN_UPSTREAM_PORT_ID, EVB_PORT_ID_ASSIGNED); MCDI_IN_SET_DWORD(req, RSS_CONTEXT_ALLOC_IN_TYPE, context_type); - /* NUM_QUEUES is only used to validate indirection table offsets */ + + /* + * For exclusive contexts, NUM_QUEUES is only used to validate + * indirection table offsets. + * For shared contexts, the provided context will spread traffic over + * NUM_QUEUES many queues. + */ MCDI_IN_SET_DWORD(req, RSS_CONTEXT_ALLOC_IN_NUM_QUEUES, num_queues); efx_mcdi_execute(enp, &req);
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