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Date:      Sat, 5 Sep 2015 17:40:51 +0200
From:      Tijl Coosemans <tijl@FreeBSD.org>
To:        Sean Bruno <sbruno@FreeBSD.org>
Cc:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   Re: svn commit: r287467 - head/sys/dev/e1000
Message-ID:  <20150905174051.674d889f@kalimero.tijl.coosemans.org>
In-Reply-To: <201509041630.t84GUnT8039376@repo.freebsd.org>
References:  <201509041630.t84GUnT8039376@repo.freebsd.org>

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On Fri, 4 Sep 2015 16:30:49 +0000 (UTC) Sean Bruno <sbruno@FreeBSD.org> wrote:
> Author: sbruno
> Date: Fri Sep  4 16:30:48 2015
> New Revision: 287467
> URL: https://svnweb.freebsd.org/changeset/base/287467
> 
> Log:
>   e1000: Shared code updates
>   -    Fix compiler warning in 80003es2lan.c
>   -    Add return value handler for e1000_*_kmrn_reg_80003es2lan
>   -    Fix usage of DEBUGOUT
>   -    Remove unnecessary variable initializations.
>   -    Removed unused variables (complaints from gcc).
>   -    Edit defines in 82571.h.
>   -    Add workaround for igb hw errata.
>   -    Shared code changes for Skylake/I219 support.
>   -    Remove unused OBFF and LTR functions.
>   
>   Differential Revision:	https://reviews.freebsd.org/D3162
>   Submitted by:	erj
>   MFC after:	1 month
>   Sponsored by:	Intel Corporation
> 
> Modified:
>   head/sys/dev/e1000/e1000_80003es2lan.c
>   head/sys/dev/e1000/e1000_82540.c
>   head/sys/dev/e1000/e1000_82541.c
>   head/sys/dev/e1000/e1000_82542.c
>   head/sys/dev/e1000/e1000_82543.c
>   head/sys/dev/e1000/e1000_82571.h
>   head/sys/dev/e1000/e1000_82575.c
>   head/sys/dev/e1000/e1000_82575.h
>   head/sys/dev/e1000/e1000_api.c
>   head/sys/dev/e1000/e1000_api.h
>   head/sys/dev/e1000/e1000_defines.h
>   head/sys/dev/e1000/e1000_hw.h
>   head/sys/dev/e1000/e1000_i210.c
>   head/sys/dev/e1000/e1000_i210.h
>   head/sys/dev/e1000/e1000_ich8lan.c
>   head/sys/dev/e1000/e1000_ich8lan.h
>   head/sys/dev/e1000/e1000_mac.c
>   head/sys/dev/e1000/e1000_mac.h
>   head/sys/dev/e1000/e1000_nvm.c
>   head/sys/dev/e1000/e1000_nvm.h
>   head/sys/dev/e1000/e1000_osdep.h
>   head/sys/dev/e1000/e1000_phy.c
>   head/sys/dev/e1000/e1000_regs.h
>   head/sys/dev/e1000/if_igb.c

I have an em device that fails to attach after this commit:

em0@pci0:0:25:0: class=0x020000 card=0x00018086 chip=0x294c8086 rev=0x02 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = '82566DC-2 Gigabit Network Connection'
    class      = network
    subclass   = ethernet

em0: <Intel(R) PRO/1000 Network Connection 7.4.2> port 0x3400-0x341f mem
0x92200000-0x9221ffff,0x92224000-0x92224fff irq 20 at device 25.0 on pci0
em0: Using an MSI interrupt

At this point the machine waits for about half a minute and then continues
with this:

em0: The EEPROM Checksum Is Not Valid
device_attach: em0 attach returned 5



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