date:20110727

Re: iscsi_sysfs_read_iface

2011-07-27 Thread Ravi Anand

On Jul 26, 2011, at 11:34 PM, Hannes Reinecke wrote:
> On 07/26/2011 09:44 PM, Mike Christie wrote:
>> On 07/26/2011 01:38 AM, Hannes Reinecke wrote:
>>> Hi Eddie,
>>>
>>> you beat me to it ...
>>>
>>> On 07/26/2011 02:28 AM, Eddie Wai wrote:
 Hello Mike,

 The following snippet from the 39d4ceb04f051c208ae7509d268a3871ffa194c5
 commit is preventing bnx2i from being able to offload when connecting
 through the iscsi_sysfs_get_hostinfo_by_host_no code path where the
 session argument == NULL.  The initiatorname sysfs inquiry failed but
 this is expected since it does not exist in the iscsi_host for bnx2i.

 Perhaps the error return code should only be propagated upward when
 session != NULL specifically for hbas like qla4xxx?

 Thanks,
 Eddie

 - 8<   - 8<   -
 @@ -527,7 +528,10 @@ static int iscsi_sysfs_read_iface(struct iface_rec
 *iface, int host_no,
iface_str(iface));
  }
  }
 -   return ret;
 +   if (ret)
 +   return ISCSI_ERR_SYSFS_LOOKUP;
 +   else
 +   return 0;
   }
 - 8<   - 8<   -
>>> Actually, this is the patch I have:
>>>
>>> diff --git a/usr/iscsi_sysfs.c b/usr/iscsi_sysfs.c
>>> index e82fe80..145816d 100644
>>> --- a/usr/iscsi_sysfs.c
>>> +++ b/usr/iscsi_sysfs.c
>>> @@ -489,7 +489,7 @@ static int iscsi_sysfs_read_iface(struct iface_rec
>>> *iface, int host_no,
>>> if (ret) {
>>> ret = sysfs_get_str(id, ISCSI_HOST_SUBSYS, "initiatorname",
>>> iface->iname, sizeof(iface->iname));
>>> -   if (ret)
>>> +   if (ret) {
>>> /*
>>>  * default iname is picked up later from
>>>  * initiatorname.iscsi if software/partial-offload.
>>> @@ -499,6 +499,8 @@ static int iscsi_sysfs_read_iface(struct iface_rec
>>> *iface, int host_no,
>>>  */
>>> log_debug(7, "Could not read initiatorname for "
>>>   "host%d\n", host_no);
>>> +   ret = 0;
>>> +   }
>>> }
>>>
>>> /*
>>>
>>> (Well, of course it got line-wrapped, but should get you the idea).
>>>
>>> I'll be sending the proper patch to the mailing-list shortly.
>>> But yes, that is a real issue.
>>
>> Yeah, this is right. That is the behavior we had before. I can just fix
>> this up and merge it if there were no other changes needed.
> Not in this area, no.
>
> I've got some minor patches to the SUSE init script but they still
> need further testing.
>
> And actually I'm working on an 'iscsi_offload' scripts which
> configures the interface definitions for the various offload
> engines. If there is enough interest maybe we should include it in
> the open-iscsi tarball.
>
I think this is a good idea.

Ravi



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Re: iscsi_sysfs_read_iface

2011-07-27 Thread Mike Christie

On 07/27/2011 01:34 AM, Hannes Reinecke wrote:
> And actually I'm working on an 'iscsi_offload' scripts which configures
> the interface definitions for the various offload engines. If there is
> enough interest maybe we should include it in the open-iscsi tarball.
> 

Ok my me.

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Re: open-iscsi issue

2011-07-27 Thread Farhan Ahmed

Hi Mike,

Have you got chance to look into this issue?

Farhan
On Jul 26, 2011 12:54 PM, "Farhan Ahmed"  wrote:
> Hi Mike,
>
> I installed CentOS 6.0 and git code worked well. I can perform the
> discovery now but iscsiadm cant login
>
> eth2 is down from the Switch
>
> [root@nfs02 ~]# ping 192.168.42.190
> PING 192.168.42.190 (192.168.42.190) 56(84) bytes of data.
> ^C
> --- 192.168.42.190 ping statistics ---
> 3 packets transmitted, 0 received, 100% packet loss, time 2930ms
>
> [root@nfs02 ~]# ping -I eth3 192.168.42.190
> PING 192.168.42.190 (192.168.42.190) from 192.168.42.71 eth3: 56(84)
> bytes of data.
> 64 bytes from 192.168.42.190: icmp_seq=1 ttl=255 time=0.108 ms
> 64 bytes from 192.168.42.190: icmp_seq=2 ttl=255 time=0.107 ms
> ^C
> --- 192.168.42.190 ping statistics ---
> 2 packets transmitted, 2 received, 0% packet loss, time 1311ms
> rtt min/avg/max/mdev = 0.107/0.107/0.108/0.010 ms
>
> [root@nfs02 ~]# iscsiadm -m discovery -p 192.168.42.190 -t st -I eth3
> 192.168.42.190:3260,1 iqn.2001-05.com.equallogic:0-8a0906-
> f0a1ed402-1f40012bba54e28b-nfs02-bond
>
>
> [root@nfs02 ~]# iscsiadm -m node -T iqn.2001-05.com.equallogic:
> 0-8a0906-f0a1ed402-1f40012bba54e28b-nfs02-bond -I eth3 -l
> Logging in to [iface: eth3, target: iqn.2001-05.com.equallogic:
> 0-8a0906-f0a1ed402-1f40012bba54e28b-nfs02-bond, portal:
> 192.168.42.190,3260] (multiple)
> iscsiadm: Could not login to [iface: eth3, target: iqn.
> 2001-05.com.equallogic:0-8a0906-f0a1ed402-1f40012bba54e28b-nfs02-bond,
> portal: 192.168.42.190,3260].
> iscsiadm: initiator reported error (8 - connection timed out)
> iscsiadm: Could not log into all portals
>
>
> Could you please advise? Secondly if we reboot our box while "eth2 is
> down from switch" still iscsiadm cant login
>
> Regards,
>
> Farhan
>
>
>
>
>
> On Jul 24, 6:20 pm, Mike Christie  wrote:
>> On 07/24/2011 12:02 AM, Farhan Ahmed wrote:
>>
>> > It is centos 5.6. I tried to compile kernel without DEPRECATED option
>> > but kernel didnt boot and threw errors so I had to compile it again
>> > with DEPRECATED support, I cant udnerstand why SYSFS had no issue with
>> > the default version of open-iscsi. We can upgrade CENTOS from 5.6 to
>> > 6.0. May I ask when are you releasing new version of open-scsi that
>> > fix this routing issue?
>>
>> About Aug 15th.
>
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Re: open-iscsi issue

2011-07-27 Thread Mike Christie

On 07/27/2011 05:18 PM, Farhan Ahmed wrote:
> Hi Mike,
> 
> Have you got chance to look into this issue?
> 

I have not.  You tried changing the rp_filter values right?

Run iscsid by hand in debug mode

/etc/init.d/iscsid stop
iscsid -d 8 -f all

iscsiadm -m node . -l

Send iscsid output.

Also send /var/log/messages output. Also run tcpdump to check that the
tcp ip SYN is going through the right interface.


> Farhan
> 
> On Jul 26, 2011 12:54 PM, "Farhan Ahmed"  > wrote:
>> Hi Mike,
>>
>> I installed CentOS 6.0 and git code worked well. I can perform the
>> discovery now but iscsiadm cant login
>>
>> eth2 is down from the Switch
>>
>> [root@nfs02 ~]# ping 192.168.42.190
>> PING 192.168.42.190 (192.168.42.190) 56(84) bytes of data.
>> ^C
>> --- 192.168.42.190 ping statistics ---
>> 3 packets transmitted, 0 received, 100% packet loss, time 2930ms
>>
>> [root@nfs02 ~]# ping -I eth3 192.168.42.190
>> PING 192.168.42.190 (192.168.42.190) from 192.168.42.71 eth3: 56(84)
>> bytes of data.
>> 64 bytes from 192.168.42.190 : icmp_seq=1
> ttl=255 time=0.108 ms
>> 64 bytes from 192.168.42.190 : icmp_seq=2
> ttl=255 time=0.107 ms
>> ^C
>> --- 192.168.42.190 ping statistics ---
>> 2 packets transmitted, 2 received, 0% packet loss, time 1311ms
>> rtt min/avg/max/mdev = 0.107/0.107/0.108/0.010 ms
>>
>> [root@nfs02 ~]# iscsiadm -m discovery -p 192.168.42.190 -t st -I eth3
>> 192.168.42.190:3260 ,1
> iqn.2001-05.com.equallogic:0-8a0906-
>> f0a1ed402-1f40012bba54e28b-nfs02-bond
>>
>>
>> [root@nfs02 ~]# iscsiadm -m node -T iqn.2001-05.com.equallogic:
>> 0-8a0906-f0a1ed402-1f40012bba54e28b-nfs02-bond -I eth3 -l
>> Logging in to [iface: eth3, target: iqn.2001-05.com.equallogic:
>> 0-8a0906-f0a1ed402-1f40012bba54e28b-nfs02-bond, portal:
>> 192.168.42.190,3260] (multiple)
>> iscsiadm: Could not login to [iface: eth3, target: iqn.
>> 2001-05.com.equallogic:0-8a0906-f0a1ed402-1f40012bba54e28b-nfs02-bond,
>> portal: 192.168.42.190,3260].
>> iscsiadm: initiator reported error (8 - connection timed out)
>> iscsiadm: Could not log into all portals
>>
>>
>> Could you please advise? Secondly if we reboot our box while "eth2 is
>> down from switch" still iscsiadm cant login
>>
>> Regards,
>>
>> Farhan
>>
>>
>>
>>
>>
>> On Jul 24, 6:20 pm, Mike Christie  > wrote:
>>> On 07/24/2011 12:02 AM, Farhan Ahmed wrote:
>>>
>>> > It is centos 5.6. I tried to compile kernel without DEPRECATED option
>>> > but kernel didnt boot and threw errors so I had to compile it again
>>> > with DEPRECATED support, I cant udnerstand why SYSFS had no issue with
>>> > the default version of open-iscsi. We can upgrade CENTOS from 5.6 to
>>> > 6.0. May I ask when are you releasing new version of open-scsi that
>>> > fix this routing issue?
>>>
>>> About Aug 15th.
>>
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>>
> 
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Re: open-iscsi issue

2011-07-27 Thread Farhan Ahmed

Thanks Mike, Yes I have set right kernel values of rp_filter, please find
the attached file which includes debug output,tcpdump and command output.
Discovery works fine for eth3 but iscsiadm cant login though. I can see the
packets are coming in/out at right interface eth3

Regards,

Farhan

On Thu, Jul 28, 2011 at 8:31 AM, Mike Christie  wrote:

> On 07/27/2011 05:18 PM, Farhan Ahmed wrote:
> > Hi Mike,
> >
> > Have you got chance to look into this issue?
> >
>
> I have not.  You tried changing the rp_filter values right?
>
> Run iscsid by hand in debug mode
>
> /etc/init.d/iscsid stop
> iscsid -d 8 -f all
>
> iscsiadm -m node . -l
>
> Send iscsid output.
>
> Also send /var/log/messages output. Also run tcpdump to check that the
> tcp ip SYN is going through the right interface.
>
>
> > Farhan
> >
> > On Jul 26, 2011 12:54 PM, "Farhan Ahmed"  > > wrote:
> >> Hi Mike,
> >>
> >> I installed CentOS 6.0 and git code worked well. I can perform the
> >> discovery now but iscsiadm cant login
> >>
> >> eth2 is down from the Switch
> >>
> >> [root@nfs02 ~]# ping 192.168.42.190
> >> PING 192.168.42.190 (192.168.42.190) 56(84) bytes of data.
> >> ^C
> >> --- 192.168.42.190 ping statistics ---
> >> 3 packets transmitted, 0 received, 100% packet loss, time 2930ms
> >>
> >> [root@nfs02 ~]# ping -I eth3 192.168.42.190
> >> PING 192.168.42.190 (192.168.42.190) from 192.168.42.71 eth3: 56(84)
> >> bytes of data.
> >> 64 bytes from 192.168.42.190 : icmp_seq=1
> > ttl=255 time=0.108 ms
> >> 64 bytes from 192.168.42.190 : icmp_seq=2
> > ttl=255 time=0.107 ms
> >> ^C
> >> --- 192.168.42.190 ping statistics ---
> >> 2 packets transmitted, 2 received, 0% packet loss, time 1311ms
> >> rtt min/avg/max/mdev = 0.107/0.107/0.108/0.010 ms
> >>
> >> [root@nfs02 ~]# iscsiadm -m discovery -p 192.168.42.190 -t st -I eth3
> >> 192.168.42.190:3260 ,1
> > iqn.2001-05.com.equallogic:0-8a0906-
> >> f0a1ed402-1f40012bba54e28b-nfs02-bond
> >>
> >>
> >> [root@nfs02 ~]# iscsiadm -m node -T iqn.2001-05.com.equallogic:
> >> 0-8a0906-f0a1ed402-1f40012bba54e28b-nfs02-bond -I eth3 -l
> >> Logging in to [iface: eth3, target: iqn.2001-05.com.equallogic:
> >> 0-8a0906-f0a1ed402-1f40012bba54e28b-nfs02-bond, portal:
> >> 192.168.42.190,3260] (multiple)
> >> iscsiadm: Could not login to [iface: eth3, target: iqn.
> >> 2001-05.com.equallogic:0-8a0906-f0a1ed402-1f40012bba54e28b-nfs02-bond,
> >> portal: 192.168.42.190,3260].
> >> iscsiadm: initiator reported error (8 - connection timed out)
> >> iscsiadm: Could not log into all portals
> >>
> >>
> >> Could you please advise? Secondly if we reboot our box while "eth2 is
> >> down from switch" still iscsiadm cant login
> >>
> >> Regards,
> >>
> >> Farhan
> >>
> >>
> >>
> >>
> >>
> >> On Jul 24, 6:20 pm, Mike Christie  > > wrote:
> >>> On 07/24/2011 12:02 AM, Farhan Ahmed wrote:
> >>>
> >>> > It is centos 5.6. I tried to compile kernel without DEPRECATED option
> >>> > but kernel didnt boot and threw errors so I had to compile it again
> >>> > with DEPRECATED support, I cant udnerstand why SYSFS had no issue
> with
> >>> > the default version of open-iscsi. We can upgrade CENTOS from 5.6 to
> >>> > 6.0. May I ask when are you releasing new version of open-scsi that
> >>> > fix this routing issue?
> >>>
> >>> About Aug 15th.
> >>
> >> --
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> > Groups "open-iscsi" group.
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> > .
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> > open-iscsi+unsubscr...@googlegroups.com
> > .
>  >> For more options, visit this group at
> > http://groups.google.com/group/open-iscsi?hl=en.
> >>
> >
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>
>

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iscsid -d 8 -f all


iscsid: sysfs_init: sysfs_path='/sys'

iscsid: sysfs_attr_get_value: open '/module/scsi_transport_iscsi'/'version'

iscsid: sysfs_attr_get_value: new uncached attribute 
'/sys/module/scsi_transport_iscsi/version'

iscsid: sysfs_attr_get_value: add to cache 
'/sys/module/scsi_transport_iscsi/version'

iscsid: sysfs_attr_get_value: cache '/sys/module/scsi_transp

Re: iscsi_sysfs_read_iface

Re: iscsi_sysfs_read_iface

Re: open-iscsi issue

Re: open-iscsi issue

Re: open-iscsi issue

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