linux-kernel - RE: [PATCH 03/12] PCI/switchtec: Add support for new events

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Message-ID: <BY5PR11MB4354178CD58A467995EC22F88D340@BY5PR11MB4354.namprd11.prod.outlook.com>
Date:   Tue, 14 Jan 2020 02:07:42 +0000
From:   <Kelvin.Cao@...rochip.com>
To:     <logang@...tatee.com>, <helgaas@...nel.org>
CC:     <linux-kernel@...r.kernel.org>, <linux-pci@...r.kernel.org>,
        <epilmore@...aio.com>, <dmeyer@...aio.com>
Subject: RE: [PATCH 03/12] PCI/switchtec: Add support for new events

'InterComm' is the spelling in the latest datasheet, it's short for "Inter Fabric Manager Communication". Thanks.

Kelvin

-----Original Message-----
From: Logan Gunthorpe [mailto:logang@...tatee.com] 
Sent: Thursday, January 9, 2020 5:48 AM
To: Bjorn Helgaas <helgaas@...nel.org>
Cc: linux-kernel@...r.kernel.org; linux-pci@...r.kernel.org; Kelvin Cao - A31060 <Kelvin.Cao@...rochip.com>; Eric Pilmore <epilmore@...aio.com>; Doug Meyer <dmeyer@...aio.com>
Subject: Re: [PATCH 03/12] PCI/switchtec: Add support for new events

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On 2020-01-08 2:33 p.m., Bjorn Helgaas wrote:
> On Mon, Jan 06, 2020 at 12:03:28PM -0700, Logan Gunthorpe wrote:
>> The intercomm notify  event was added for PAX variants of switchtec 
>> hardware and the UEC Port was added for the MR1 release of GEN3 firmware.
>
> Do they actually spell it "intercomm" in the datasheet?  Seems like 
> the most common English spelling is "intercom".

Hmm, not sure I don't have this event in my datasheet which is a little out of date. Kelvin, whose CC'd, would know if we can change the spelling hopefully he can weigh in on this. As far as I know the define isn't used anywhere yet.

> Is there some meaningful expansion of "UEC"?

Upstream Error Containment -- I'll mention that in the commit message.

Logan


>> Signed-off-by: Logan Gunthorpe <logang@...tatee.com>
>> ---
>>  drivers/pci/switch/switchtec.c       | 3 +++
>>  include/linux/switchtec.h            | 7 +++++--
>>  include/uapi/linux/switchtec_ioctl.h | 4 +++-
>>  3 files changed, 11 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/pci/switch/switchtec.c 
>> b/drivers/pci/switch/switchtec.c index 9c3ad09d3022..218e67428cf9 
>> 100644
>> --- a/drivers/pci/switch/switchtec.c
>> +++ b/drivers/pci/switch/switchtec.c
>> @@ -751,10 +751,13 @@ static const struct event_reg {
>>      EV_PAR(SWITCHTEC_IOCTL_EVENT_MRPC_COMP, mrpc_comp_hdr),
>>      EV_PAR(SWITCHTEC_IOCTL_EVENT_MRPC_COMP_ASYNC, mrpc_comp_async_hdr),
>>      EV_PAR(SWITCHTEC_IOCTL_EVENT_DYN_PART_BIND_COMP, 
>> dyn_binding_hdr),
>> +    EV_PAR(SWITCHTEC_IOCTL_EVENT_INTERCOMM_REQ_NOTIFY,
>> +           intercomm_notify_hdr),