svn commit: r353658 - head/sys/dev/ixl
Eric Joyner
erj at FreeBSD.org
Wed Oct 16 17:19:18 UTC 2019
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 at intel.com>
Submitted by: Jacob Keller <jacob.e.keller at 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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