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From: Eric Farman <farman@linux.ibm.com>
To: Cornelia Huck <cohuck@redhat.com>
Cc: Farhan Ali <alifm@linux.ibm.com>,
	Halil Pasic <pasic@linux.ibm.com>,
	linux-s390@vger.kernel.org, kvm@vger.kernel.org
Subject: Re: [PATCH v2 9/9] s390/cio: Combine direct and indirect CCW paths
Date: Fri, 14 Jun 2019 06:30:08 -0400
Message-ID: <cd8dfb17-be1b-5edd-8849-1bbf47c9bfd6@linux.ibm.com> (raw)
In-Reply-To: <20190614120111.00b4bd48.cohuck@redhat.com>



On 6/14/19 6:01 AM, Cornelia Huck wrote:
> On Thu,  6 Jun 2019 22:28:31 +0200
> Eric Farman <farman@linux.ibm.com> wrote:
> 
>> With both the direct-addressed and indirect-addressed CCW paths
>> simplified to this point, the amount of shared code between them is
>> (hopefully) more easily visible.  Move the processing of IDA-specific
>> bits into the direct-addressed path, and add some useful commentary of
>> what the individual pieces are doing.  This allows us to remove the
>> entire ccwchain_fetch_idal() routine and maintain a single function
>> for any non-TIC CCW.
>>
>> Signed-off-by: Eric Farman <farman@linux.ibm.com>
>> ---
>>  drivers/s390/cio/vfio_ccw_cp.c | 115 +++++++++++----------------------
>>  1 file changed, 39 insertions(+), 76 deletions(-)
> 
> Another nice cleanup :)

Thanks!  This one makes me feel warm and fuzzy having only CCW processor
to manage in the future.

> 
>>
>> diff --git a/drivers/s390/cio/vfio_ccw_cp.c b/drivers/s390/cio/vfio_ccw_cp.c
>> index 8205d0b527fc..90d86e1354c1 100644
>> --- a/drivers/s390/cio/vfio_ccw_cp.c
>> +++ b/drivers/s390/cio/vfio_ccw_cp.c
>> @@ -534,10 +534,12 @@ static int ccwchain_fetch_direct(struct ccwchain *chain,
> 
> The one minor thing I have is that the function name
> (ccwchain_fetch_direct) is now slightly confusing. But we can easily do
> a patch on top renaming it (if we can come up with a better name.)

Agreed!  Maybe just ccwchain_fetch() ?  Or perhaps ccwchain_fetch_ccw()
if that won't cause too much confusion with the ccwchain_handle_ccw()
called from cp_init().

> 
> Reviewed-by: Cornelia Huck <cohuck@redhat.com>
> 

Thanks for all of these!  :)

  reply index

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-06 20:28 [PATCH v2 0/9] s390: vfio-ccw code rework Eric Farman
2019-06-06 20:28 ` [PATCH v2 1/9] s390/cio: Squash cp_free() and cp_unpin_free() Eric Farman
2019-06-12 11:07   ` Cornelia Huck
2019-06-06 20:28 ` [PATCH v2 2/9] s390/cio: Refactor the routine that handles TIC CCWs Eric Farman
2019-06-12 11:17   ` Cornelia Huck
2019-06-06 20:28 ` [PATCH v2 3/9] s390/cio: Generalize the TIC handler Eric Farman
2019-06-12 11:18   ` Cornelia Huck
2019-06-06 20:28 ` [PATCH v2 4/9] s390/cio: Use generalized CCW handler in cp_init() Eric Farman
2019-06-12 11:18   ` Cornelia Huck
2019-06-06 20:28 ` [PATCH v2 5/9] vfio-ccw: Rearrange pfn_array and pfn_array_table arrays Eric Farman
2019-06-13 16:02   ` Cornelia Huck
2019-06-06 20:28 ` [PATCH v2 6/9] vfio-ccw: Adjust the first IDAW outside of the nested loops Eric Farman
2019-06-13 16:02   ` Cornelia Huck
2019-06-06 20:28 ` [PATCH v2 7/9] vfio-ccw: Remove pfn_array_table Eric Farman
2019-06-13 16:03   ` Cornelia Huck
2019-06-06 20:28 ` [PATCH v2 8/9] vfio-ccw: Rearrange IDAL allocation in direct CCW Eric Farman
2019-06-14  9:42   ` Cornelia Huck
2019-06-06 20:28 ` [PATCH v2 9/9] s390/cio: Combine direct and indirect CCW paths Eric Farman
2019-06-14 10:01   ` Cornelia Huck
2019-06-14 10:30     ` Eric Farman [this message]
2019-06-14 10:03 ` [PATCH v2 0/9] s390: vfio-ccw code rework Cornelia Huck
2019-06-17 13:32 ` Cornelia Huck

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