On 06/15/2010 09:43 PM, Vikas Chaudhary wrote:
-----Original Message-----
From: Mike Christie [mailto:michaelc@xxxxxxxxxxx]
Sent: Sunday, June 13, 2010 1:11 PM
To: James Bottomley
Cc: Vikas Chaudhary; linux-scsi@xxxxxxxxxxxxxxx; Ravi Anand
Subject: Re: [PATCH 13/15] qla4xxx: Added bsg support
On 06/12/2010 05:37 PM, James Bottomley wrote:
On Fri, 2010-06-11 at 19:23 -0500, Mike Christie wrote:
On 06/11/2010 02:49 AM, Vikas Chaudhary wrote:
Added BSG support to enable application support to configure
ISP40XX/ISP82XX adapter.
This patch is on top of: http://marc.info/?l=linux-
scsi&m=126999297630764&w=2
Did James say that using vendor specific commands was ok? I did not see
anything on the list.
In principle, the point about vendor specific host commands has already
been conceded ... lpfc and qla2xxx already use them.
I think the real rule is that for host specific BSG commands, it's only
for stuff that's specific to the host ... so not stuff which should be
done generically.
There are no hard and fast rules for applying the test above. In
theory, the management interfaces exposed by FC_BSG_HST_VENDOR could be
used to send commands ... but it tends to get tolerated as long as the
drivers support the standardised rport commands.
If I look at what the qla4xxx interface would do
1. it only supports vendor specific commands ... this is a bit of a
red flag since it's proposing to do nothing in a vendor neutral
way. This one, I punt back to you: what should an iscsi device
implementing BSG support of the standard commands
I am not 100% sure what we need yet, because qlogic has been pushing the
vendor specific route and I cannot see exactly what it needs with some
of its commands.
Based on other drivers and from looking at the qlogic tools and their
qlogic.com driver which seems to convert some management operations to
flash commands, I have the list below:
- Operation to set net settings like ip/dhcp, gateway, dns, subnet,
vlan, tcp/ip settings, speed/auto-negotiate, etc.
Besides supporting a IPv4 and IPv6 address, some cards can support lots
of IPs and/or vlans per same physical port, so this operation cannot be
tied to just the host.
These operations are tied to per pci function in qla4xxx driver.
ServerEgnines supports multiple ips per pci function, so you need
something that works for everyone like I was talking about in that other
mail you guys sent about how to export the ipv4 and ipv6 addr.
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
