Date: Wed, 16 Oct 2019 17:19:17 +0000 (UTC) From: Eric Joyner <erj@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r353658 - head/sys/dev/ixl Message-ID: <201910161719.x9GHJHux068505@repo.freebsd.org>
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Author: erj Date: Wed Oct 16 17:19:17 2019 New Revision: 353658 URL: https://svnweb.freebsd.org/changeset/base/353658 Log: ixl: report whether device received pause frames From Jake: When updating the device statistics, report whether or not we have received any pause frames to the iflib stack. This allows the iflib stack to avoid generating a Tx hang message while the device is paused. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Submitted by: Jacob Keller <jacob.e.keller@intel.com> Reviewed by: gallatin@ Sponsored by: Intel Corporation Differential Revision: https://reviews.freebsd.org/D21870 Modified: head/sys/dev/ixl/ixl_pf_main.c Modified: head/sys/dev/ixl/ixl_pf_main.c ============================================================================== --- head/sys/dev/ixl/ixl_pf_main.c Wed Oct 16 17:16:32 2019 (r353657) +++ head/sys/dev/ixl/ixl_pf_main.c Wed Oct 16 17:19:17 2019 (r353658) @@ -2592,6 +2592,7 @@ ixl_update_stats_counters(struct ixl_pf *pf) struct i40e_hw *hw = &pf->hw; struct ixl_vsi *vsi = &pf->vsi; struct ixl_vf *vf; + u64 prev_link_xoff_rx = pf->stats.link_xoff_rx; struct i40e_hw_port_stats *nsd = &pf->stats; struct i40e_hw_port_stats *osd = &pf->stats_offsets; @@ -2676,6 +2677,13 @@ ixl_update_stats_counters(struct ixl_pf *pf) ixl_stat_update32(hw, I40E_GLPRT_LXOFFTXC(hw->port), pf->stat_offsets_loaded, &osd->link_xoff_tx, &nsd->link_xoff_tx); + + /* + * For watchdog management we need to know if we have been paused + * during the last interval, so capture that here. + */ + if (pf->stats.link_xoff_rx != prev_link_xoff_rx) + adapter->shared->isc_pause_frames = 1; /* Packet size stats rx */ ixl_stat_update48(hw, I40E_GLPRT_PRC64H(hw->port),
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