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PR/52885 CVS commit: [netbsd-8] src

The following reply was made to PR kern/52885; it has been noted by GNATS.

From: "Martin Husemann" <>
Subject: PR/52885 CVS commit: [netbsd-8] src
Date: Mon, 5 Feb 2018 15:07:30 +0000

 Module Name:	src
 Committed By:	martin
 Date:		Mon Feb  5 15:07:30 UTC 2018
 Modified Files:
 	src/share/man/man4 [netbsd-8]: wm.4
 	src/sys/dev/pci [netbsd-8]: if_wm.c
 Log Message:
 Pull up following revision(s) (requested by knakahara in ticket #529):
 	sys/dev/pci/if_wm.c: revision 1.560
 	sys/dev/pci/if_wm.c: revision 1.561
 	sys/dev/pci/if_wm.c: revision 1.562
 	share/man/man4/wm.4: revision 1.37
 	share/man/man4/wm.4: revision 1.38
 	sys/dev/pci/if_wm.c: revision 1.551
 	sys/dev/pci/if_wm.c: revision 1.553
 	sys/dev/pci/if_wm.c: revision 1.554
 	sys/dev/pci/if_wm.c: revision 1.555
 	sys/dev/pci/if_wm.c: revision 1.556
 	sys/dev/pci/if_wm.c: revision 1.557
 	sys/dev/pci/if_wm.c: revision 1.558
 	sys/dev/pci/if_wm.c: revision 1.559
 PR/52885 - Shinichi Doyashiki -- typo in comment
 Fix legacy Tx descriptors printing when WM_DEBUG is enabled.
 improve comments
 Fix wm_watchdog_txq() lock region.
 Not only wm_txeof() but also wm_watchdog_txq() itself requires txq_lock
 as it reads Tx descriptor management variables such as "txq_free".
 There is almost no influence on performance.
 Fix duplicated "rxintr" evcnt counting. Pointed out by ozaki-r@n.o, thanks.
 wm_txeof() can limit the loop count the same as wm_rxeof() now.
 More markup.
 CID-1427779: Fix uninitialized variables
 Fix 82574 MSI-X mode cannot receive packets after 82574 receives high rate traffic.
 In short, 82574 MSI-X mode does not cause RXQ MSI-X vector when 82574's
 phys FIFO overflows. I don't know why but 82574 causes not RXQ MSI-X vector
 but OTHER MSI-X vector at the situation.
 advised by msaitoh@n.o, thanks.
 Fix if_wm.c:r1.557 merge miss, sorry.
 Fix unmatched return type. The return value of wm_txeof() is not useded yet.
 Make wm(4) watchdog MP-safe. There is almost no influence on performance.
 wm(4) does not use ifp->if_watchdog now, that is, it does not touch
 It also uses own callout(wm_tick) as watchdog now. The watchdog uses
 per-queue counter to check timeout. So, global lock is not required.
 To generate a diff of this commit:
 cvs rdiff -u -r1.36 -r1.36.4.1 src/share/man/man4/wm.4
 cvs rdiff -u -r1.508.4.12 -r1.508.4.13 src/sys/dev/pci/if_wm.c
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

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