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Date:      Tue, 25 Mar 2014 23:33:44 -0300
From:      Christopher Forgeron <csforgeron@gmail.com>
To:        Markus Gebert <markus.gebert@hostpoint.ch>
Cc:        FreeBSD Net <freebsd-net@freebsd.org>, Rick Macklem <rmacklem@uoguelph.ca>, Garrett Wollman <wollman@freebsd.org>, Jack Vogel <jfvogel@gmail.com>
Subject:   Re: 9.2 ixgbe tx queue hang
Message-ID:  <CAB2_NwA-zLnJh7Teqx4eQ-Tkc8bjx2qL0JMZeZqvSzJZ4mx4cg@mail.gmail.com>
In-Reply-To: <1197F2E5-F20C-43E4-B8C8-8732F45457C2@hostpoint.ch>
References:  <0BC10908-2081-45AC-A1C8-14220D81EC0A@hostpoint.ch> <1236110257.2510701.1395709458870.JavaMail.root@uoguelph.ca> <CAB2_NwBrdp3XsVrgkWgf7zGsrCBq1%2BC7FgsYvV28yjcUe4qZ=Q@mail.gmail.com> <CAB2_NwA2zp9VaBm4ZRR1udghbSpSDs_x8bK6CPHCaBuiBKD=KA@mail.gmail.com> <1197F2E5-F20C-43E4-B8C8-8732F45457C2@hostpoint.ch>

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On Tue, Mar 25, 2014 at 8:21 PM, Markus Gebert
<markus.gebert@hostpoint.ch>wrote:

>
>
> Is 65517 correct? With Ricks patch, I get this:
>
> dev.ix.0.hw_tsomax: 65518
>

Perhaps a difference between 9.2 and 10 for one of the macros?  My code is:

ifp->if_hw_tsomax = IP_MAXPACKET - (ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN);
        printf("CSF - 3 Init, ifp->if_hw_tsomax = %d\n", ifp->if_hw_tsomax);

(BTW, you should submit the hw_tsomax sysctl patch, that's useful to others)


> Also the dtrace command you used excludes 65518...
>

Oh, I thought it was giving every packet that is greater than or equal to
65518 - Could you show me the proper command? That's the third time I've
used dtrace, so I'm making this up as I go. :-)



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