svn commit: r333345 - head/sys/dev/e1000

[Matthew Macy]

See r333631

On Tue, May 15, 2018 at 09:18 Mark Johnston <markj at freebsd.org> wrote:

> On Tue, May 08, 2018 at 01:39:45AM +0000, Matt Macy wrote:
> > Author: mmacy
> > Date: Tue May  8 01:39:45 2018
> > New Revision: 333345
> > URL: https://svnweb.freebsd.org/changeset/base/333345
> >
> > Log:
> >   Sleep rather than spin in e1000 when doing long running config
> operations.
> >
> >   With r333218 it is now possible for drivers to use an sx lock and thus
> sleep while
> >   waiting on long running operations rather than DELAY().
> >
> >   Reported by:        gallatin
> >   Reviewed by:        sbruno
> >   Approved by:        sbruno
> >   MFC after:  1 month
> >   Sponsored by:       Limelight Networks
> >   Differential Revision:      https://reviews.freebsd.org/D14984
>
> This commit causes igb to fail to attach to one of the ports on an I210:
>
> igb0 at pci0:5:0:0:        class=0x020000 card=0x153315d9 chip=0x15338086
> rev=0x03 hdr=0x00
>     vendor     = 'Intel Corporation'
>     device     = 'I210 Gigabit Network Connection'
>     class      = network
>     subclass   = ethernet
> igb1 at pci0:6:0:0:        class=0x020000 card=0x153315d9 chip=0x15338086
> rev=0x03 hdr=0x00
>     vendor     = 'Intel Corporation'
>     device     = 'I210 Gigabit Network Connection'
>     class      = network
>     subclass   = ethernet
>
> In the dmesg I see:
>
> igb0: <Intel(R) PRO/1000 PCI-Express Network Driver> port 0xd000-0xd01f
> mem 0xf8300000-0xf837ffff,0xf8380000-0xf8383fff irq 18 at device 0.0
> numa-domain 0 on pci6
> igb0: attach_pre capping queues at 4
> igb0: Setup of Shared code failed, error -2
> igb0: IFDI_ATTACH_PRE failed 6
> device_attach: igb0 attach returned 6
> pcib7: <ACPI PCI-PCI bridge> irq 19 at device 28.3 numa-domain 0 on pci1
> pci7: <ACPI PCI bus> numa-domain 0 on pcib7
> igb0: <Intel(R) PRO/1000 PCI-Express Network Driver> port 0xc000-0xc01f
> mem 0xf8200000-0xf827ffff,0xf8280000-0xf8283fff irq 19 at device 0.0
> numa-domain 0 on pci7
> igb0: attach_pre capping queues at 4
> igb0: using 1024 tx descriptors and 1024 rx descriptors
> igb0: msix_init qsets capped at 4
> igb0: pxm cpus: 8 queue msgs: 4 admincnt: 1
> igb0: using 4 rx queues 4 tx queues
> igb0: Using MSIX interrupts with 5 vectors
> igb0: allocated for 4 tx_queues
> igb0: allocated for 4 rx_queues
>