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

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Date:   Wed, 8 Jan 2020 14:47:54 -0700
From:   Logan Gunthorpe <logang@...tatee.com>
To:     Bjorn Helgaas <helgaas@...nel.org>
Cc:     linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
        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



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out of date.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),