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Message-ID: <CAE9FiQUk-sAHnjfBvNeHQWibJRqbPE1V0UtDtARtwxmS=7aQrw@mail.gmail.com> Date: Fri, 12 Sep 2014 16:09:14 -0700 From: Yinghai Lu <yinghai@...nel.org> To: Dirk Gouders <dirk@...ders.net> Cc: Bjorn Helgaas <bhelgaas@...gle.com>, Linus Torvalds <torvalds@...ux-foundation.org>, Andreas Noever <andreas.noever@...il.com>, Linux Kernel <linux-kernel@...r.kernel.org>, "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org> Subject: Re: [BUG] Bisected Problem with LSI PCI FC Adapter On Fri, Sep 12, 2014 at 3:05 PM, Dirk Gouders <dirk@...ders.net> wrote: > Yinghai Lu <yinghai@...nel.org> writes: > >> On Fri, Sep 12, 2014 at 1:54 PM, Dirk Gouders <dirk@...ders.net> wrote: >>> Yinghai Lu <yinghai@...nel.org> writes: >>> >>>> On Fri, Sep 12, 2014 at 1:05 PM, Dirk Gouders <dirk@...ders.net> wrote: >>>>> Dirk Gouders <dirk@...ders.net> writes: >>> -[0000:00]-+-01.0-[01-02]--+-0d.0-[02]-- >>> | +-0e.0 Broadcom BCM5785 [HT1000] SATA (PATA/IDE Mode) >>> | \-0e.1 Broadcom BCM5785 [HT1000] SATA (PATA/IDE Mode) >>> +-02.0 Broadcom BCM5785 [HT1000] Legacy South Bridge >>> +-02.1 Broadcom BCM5785 [HT1000] IDE >>> +-02.2 Broadcom BCM5785 [HT1000] LPC >>> +-03.0 Broadcom BCM5785 [HT1000] USB >>> +-03.1 Broadcom BCM5785 [HT1000] USB >>> +-03.2 Broadcom BCM5785 [HT1000] USB >>> +-06.0-[03]-- >>> +-07.0-[04]--+-04.0 Broadcom Corporation NetXtreme BCM5780 Gigabit Ethernet >>> | \-04.1 Broadcom Corporation NetXtreme BCM5780 Gigabit Ethernet >>> +-0a.0-[05]-- >>> +-0b.0-[06]-- >> >> what is "lspci -tv" and "lspci -vvxxx" look like before your patch that cut down >> end bus to 07 ...? > > Rebooted with 3.16 kernel: > > # lspci -tv > > -[0000:00]-+-01.0-[01-02]--+-0d.0-[02]-- > | +-0e.0 Broadcom BCM5785 [HT1000] SATA (PATA/IDE Mode) > | \-0e.1 Broadcom BCM5785 [HT1000] SATA (PATA/IDE Mode) > +-02.0 Broadcom BCM5785 [HT1000] Legacy South Bridge > +-02.1 Broadcom BCM5785 [HT1000] IDE > +-02.2 Broadcom BCM5785 [HT1000] LPC > +-03.0 Broadcom BCM5785 [HT1000] USB > +-03.1 Broadcom BCM5785 [HT1000] USB > +-03.2 Broadcom BCM5785 [HT1000] USB > +-06.0-[03]-- > +-07.0-[04]--+-04.0 Broadcom Corporation NetXtreme BCM5780 Gigabit Ethernet > | \-04.1 Broadcom Corporation NetXtreme BCM5780 Gigabit Ethernet > +-08.0-[05]-- > +-09.0-[06]-- > +-0a.0-[07]----00.0 LSI Logic / Symbios Logic FC949ES Fibre Channel Adapter > +-0b.0-[08]-- where are 00:08.0 and 00:09.0 going? Did you just skip them in "cut end bus patch" ? Proper simulation could be: 1. remove 07:00.0 echo 1 > /sys/bus/pci/devices/0000:07:00.0/remove 2. change bus range in 00:0a.0 bus setpci -s 00:0a.0 0x1c.l=0x00101000 3. remove 00:0a.0 echo 1 > /sys/bus/pci/devices/0000:00:0a.0/remove 4. rescan pci echo 1 > /sys/bus/pci/rescan 5. reset pcie link from 00:0a.0 setpci -s 00:0a.0 0xc0.b=0x18 sleep 1s setpci -s 00:0a.0 0xc0.b=0x08 6. rescan pci bus echo 1 > /sys/bus/pci/rescan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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