linux-kernel - Re: [Bugfix 0/3] Convert eata driver to a normal PCI device driver

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Message-ID: <55F6EF40.50403@internode.on.net>
Date:	Tue, 15 Sep 2015 01:31:04 +0930
From:	Arthur Marsh <arthur.marsh@...ernode.on.net>
To:	Jiang Liu <jiang.liu@...ux.intel.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Bjorn Helgaas <bhelgaas@...gle.com>
CC:	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
	linux-scsi@...r.kernel.org, x86@...nel.org
Subject: Re: [Bugfix 0/3] Convert eata driver to a normal PCI device driver



Jiang Liu wrote on 14/09/15 12:38:
> Hi Authur,
> 	As suggested by Bjorn, patch 1-2 set implement a PCI device
> driver to manage eata PCI devices. And patch 3 tries to support PCI
> device hot-removal for eata, but I have no change to test due to
> limited knowledge about scsi subsystem and lacking of hardware for
> tests.
> 	So you could please help to test patch 1-2? Patch 3 is just
> for comments.
> Thanks!
> Gerry
>
> Jiang Liu (3):
>    eata: Use IDA to manage eata board IDs
>    eata: Implement PCI driver to manage eata PCI devices
>    eata: Enhance eata driver to support PCI device hot-removal
>
>   drivers/scsi/eata.c |  232 +++++++++++++++++++++++++++------------------------
>   1 file changed, 125 insertions(+), 107 deletions(-)
>

With patches 1 and 2 applied, I get a successful boot with IRQ mapping:

[    1.147056] EATA0: IRQ 10 mapped to IO-APIC IRQ 17.
[    1.160404] EATA/DMA 2.0x: Copyright (C) 1994-2003 Dario Ballabio.
[    1.160469] EATA config options -> tm:1, lc:y, mq:16, rs:y, et:n, 
ip:n, ep:n, pp:y.
[    1.160541] EATA0: 2.0C, PCI 0xd890, IRQ 17, BMST, SG 122, MB 64.
[    1.160600] EATA0: wide SCSI support enabled, max_id 16, max_lun 8.
[    1.160658] EATA0: SCSI channel 0 enabled, host target ID 7.
[    1.161207] scsi host0: EATA/DMA 2.0x rev. 8.10.00


but I still get errors when trying to do a kexec reboot, see 
http://www.users.on.net/~arthur.marsh/20150915547.jpg

roughly it reads (after the synchronising SCSI cache reboot messages) 
and a long period of a dark screen:

sd 0:0:6:0: abort, mbox 63.
EATA0: abort, mbox 63 is in use.
sd 0:0:6:0: reset, enter.
EATA0: reset, mbox 63 in reset.
EATA0: reset, board reset done, enabling interrupts.
EATA0: reset, interrupts disabled, loops 100469.
EATA0: reset, mbox 63 locked, DID_RESET, done.
EATA0: reset, exit, done.
sd 0:0:6:0: qcomm, mbox 0, adapter busy, will start
sd 0:0:6:0: abort, mbox 0.
EATA0: abort, timeout error.
sd 0:0:6:0: reset, enter.
EATA0: reset, exit, timeout error.
sd 0:0:6:0 Device offlinled - not ready after error recovery
sd 0:0:6:0 rejecting I/O to offline device
sd 0:0:6:0 rejecting I/O to offline device
sd 0:0:6:0 [sda] Synchronize Cache(10) failed: Result: 
hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK
starting new kernel

It would be great if this problem could be fixed.

Arthur.

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