linux-kernel - Re: [PATCH v7 5/7] scsi: hisi_sas: Add libsas SATA sysfs attributes group

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Message-ID: <ZejYb4ykeF7Qx5a5@google.com>
Date: Wed, 6 Mar 2024 12:56:15 -0800
From: Igor Pylypiv <ipylypiv@...gle.com>
To: Niklas Cassel <cassel@...nel.org>
Cc: Damien Le Moal <dlemoal@...nel.org>,
	John Garry <john.g.garry@...cle.com>,
	Jason Yan <yanaijie@...wei.com>,
	"James E.J. Bottomley" <jejb@...ux.ibm.com>,
	"Martin K. Petersen" <martin.petersen@...cle.com>,
	Jack Wang <jinpu.wang@...ud.ionos.com>,
	Hannes Reinecke <hare@...e.de>,
	Xiang Chen <chenxiang66@...ilicon.com>,
	Artur Paszkiewicz <artur.paszkiewicz@...el.com>,
	Bart Van Assche <bvanassche@....org>,
	TJ Adams <tadamsjr@...gle.com>, linux-ide@...r.kernel.org,
	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 5/7] scsi: hisi_sas: Add libsas SATA sysfs attributes
 group

On Wed, Mar 06, 2024 at 11:55:33AM +0100, Niklas Cassel wrote:
> On Tue, Mar 05, 2024 at 05:22:24PM -0800, Igor Pylypiv wrote:
> > The added sysfs attributes group enables the configuration of NCQ Priority
> > feature for HBAs that rely on libsas to manage SATA devices.
> > 
> > Reviewed-by: John Garry <john.g.garry@...cle.com>
> > Reviewed-by: Damien Le Moal <dlemoal@...nel.org>
> > Reviewed-by: Jason Yan <yanaijie@...wei.com>
> > Signed-off-by: Igor Pylypiv <ipylypiv@...gle.com>
> > ---
> >  drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 6 ++++++
> >  drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 6 ++++++
> 
> Is there a reason why you didn't patch:
> drivers/scsi/hisi_sas/hisi_sas_v1_hw.c ?
> 

I originally patched hisi_sas_v1_hw.c as well. John Garry pointed out
that v1 HW doesn't support SATA so I dropped the change.

> 
> >  2 files changed, 12 insertions(+)
> > 
> > diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
> > index 73b378837da7..b5d379ebe05d 100644
> > --- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
> > +++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
> > @@ -3544,6 +3544,11 @@ static struct attribute *host_v2_hw_attrs[] = {
> >  
> >  ATTRIBUTE_GROUPS(host_v2_hw);
> >  
> > +static const struct attribute_group *sdev_groups_v2_hw[] = {
> > +	&sas_ata_sdev_attr_group,
> > +	NULL
> > +};
> > +
> >  static void map_queues_v2_hw(struct Scsi_Host *shost)
> >  {
> >  	struct hisi_hba *hisi_hba = shost_priv(shost);
> > @@ -3585,6 +3590,7 @@ static const struct scsi_host_template sht_v2_hw = {
> >  	.compat_ioctl		= sas_ioctl,
> >  #endif
> >  	.shost_groups		= host_v2_hw_groups,
> > +	.sdev_groups		= sdev_groups_v2_hw,
> >  	.host_reset		= hisi_sas_host_reset,
> >  	.map_queues		= map_queues_v2_hw,
> >  	.host_tagset		= 1,
> > diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
> > index b56fbc61a15a..9b69ea16a1e6 100644
> > --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
> > +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
> > @@ -2929,6 +2929,11 @@ static struct attribute *host_v3_hw_attrs[] = {
> >  
> >  ATTRIBUTE_GROUPS(host_v3_hw);
> >  
> > +static const struct attribute_group *sdev_groups_v3_hw[] = {
> > +	&sas_ata_sdev_attr_group,
> > +	NULL
> > +};
> > +
> >  #define HISI_SAS_DEBUGFS_REG(x) {#x, x}
> >  
> >  struct hisi_sas_debugfs_reg_lu {
> > @@ -3340,6 +3345,7 @@ static const struct scsi_host_template sht_v3_hw = {
> >  	.compat_ioctl		= sas_ioctl,
> >  #endif
> >  	.shost_groups		= host_v3_hw_groups,
> > +	.sdev_groups		= sdev_groups_v3_hw,
> >  	.tag_alloc_policy	= BLK_TAG_ALLOC_RR,
> >  	.host_reset             = hisi_sas_host_reset,
> >  	.host_tagset		= 1,
> > -- 
> > 2.44.0.278.ge034bb2e1d-goog
> >