linux-kernel - regression introduced by "PCI: Set PCI-E Max Payload Size on fabric" patch

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Date:	Fri, 23 Sep 2011 05:20:51 -0400 (EDT)
From:	CAI Qian <caiqian@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	Jon Mason <mason@...i.com>, Jordan_Hargrave@...l.com,
	esse Barnes <jbarnes@...tuousgeek.org>
Subject: regression introduced by "PCI: Set PCI-E Max Payload Size on fabric" patch

After reverted this commit,

b03e7495a862b028294f59fc87286d6d78ee7fa1
PCI: Set PCI-E Max Payload Size on fabric

A server with qla2xxx is able to boot the latest mainly kernel.

QLogic Fibre Channel HBA Driver: 8.03.07.03-k
qla2xxx 0000:06:02.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
qla2xxx 0000:06:02.0: Found an ISP2422, irq 17, iobase 0xf9dfe000
qla2xxx 0000:06:02.0: Configuring PCI space...
qla2xxx 0000:06:02.0: Configure NVRAM parameters...
qla2xxx 0000:06:02.0: Verifying loaded RISC code...
qla2xxx 0000:06:02.0: FW: Loading via request-firmware...
qla2xxx 0000:06:02.0: Allocated (64 KB) for EFT...
qla2xxx 0000:06:02.0: Allocated (773 KB) for firmware dump...
scsi1 : qla2xxx

Otherwise, it hung right here.

scsi0 : ioc0: LSISAS1064E B1, FwRev=011b5700h, Ports=1, MaxQ=277, IRQ=19
mptsas: ioc0: attaching ssp device: fw_channel 0, fw_id 5, phy 0, sas_addr 0x5000cca0007ed401
scsi scan: INQUIRY result too short (5), using 36
scsi 0:0:0:0: Direct-Access                                    PQ: 0 ANSI: 0
mptsas: ioc0: attaching ssp device: fw_channel 0, fw_id 4, phy 1, sas_addr 0x5000c50017501eb1
scsi 0:0:1:0: Direct-Access     IBM-ESXS ST9146803SS      B536 PQ: 0 ANSI: 5
mptsas: ioc0: attaching raid volume, channel 1, id 3
scsi 0:1:3:0: Direct-Access     LSILOGIC Logical Volume   3000 PQ: 0 ANSI: 2
sd 0:1:3:0: [sda] 285155328 512-byte logical blocks: (145 GB/135 GiB)
sd 0:1:3:0: [sda] Write Protect is off
sd 0:1:3:0: [sda] Got wrong page
sd 0:1:3:0: [sda] Assuming drive cache: write through
sd 0:1:3:0: [sda] Got wrong page
sd 0:1:3:0: [sda] Assuming drive cache: write through

CAI Qian
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