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From: Douglas Gilbert <dgilbert@interlog.com>
To: Ming Lei <ming.lei@redhat.com>, Jens Axboe <axboe@kernel.dk>,
	linux-block@vger.kernel.org, linux-scsi@vger.kernel.org,
	"Martin K . Petersen" <martin.petersen@oracle.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
	Bart Van Assche <bvanassche@acm.org>,
	Hannes Reinecke <hare@suse.com>,
	John Garry <john.garry@huawei.com>,
	Don Brace <don.brace@microsemi.com>,
	Kashyap Desai <kashyap.desai@broadcom.com>,
	Sathya Prakash <sathya.prakash@broadcom.com>,
	Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH 4/9] scsi_debug: support host tagset
Date: Sun, 2 Jun 2019 13:01:53 -0400
Message-ID: <9a43b5ff-f9a6-f0a2-bb9a-4686b7741cbf@interlog.com> (raw)
In-Reply-To: <20190531022801.10003-5-ming.lei@redhat.com>

[-- Attachment #1: Type: text/plain, Size: 1849 bytes --]

On 2019-05-30 10:27 p.m., Ming Lei wrote:
> The 'host_tagset' can be set on scsi_debug device for testing
> shared hostwide tags on multiple blk-mq hw queue.
> 
> Signed-off-by: Ming Lei <ming.lei@redhat.com>

Hi,
Attached are my suggestions to clean up this patch a bit. It basically
   - drops the unneeded initialization (pointed out in another review)
   - places new module_param_named() in alphabetical order
   - adds MODULE_PARM_DESC() for 'modinfo scsi_debug' online help

Doug Gilbert

> ---
>   drivers/scsi/scsi_debug.c | 3 +++
>   1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
> index d323523f5f9d..8cf3f6c3f4f9 100644
> --- a/drivers/scsi/scsi_debug.c
> +++ b/drivers/scsi/scsi_debug.c
> @@ -665,6 +665,7 @@ static bool have_dif_prot;
>   static bool write_since_sync;
>   static bool sdebug_statistics = DEF_STATISTICS;
>   static bool sdebug_wp;
> +static bool sdebug_host_tagset = false;
>   
>   static unsigned int sdebug_store_sectors;
>   static sector_t sdebug_capacity;	/* in sectors */
> @@ -4468,6 +4469,7 @@ module_param_named(vpd_use_hostno, sdebug_vpd_use_hostno, int,
>   module_param_named(wp, sdebug_wp, bool, S_IRUGO | S_IWUSR);
>   module_param_named(write_same_length, sdebug_write_same_length, int,
>   		   S_IRUGO | S_IWUSR);
> +module_param_named(host_tagset, sdebug_host_tagset, bool, S_IRUGO | S_IWUSR);
>   
>   MODULE_AUTHOR("Eric Youngdale + Douglas Gilbert");
>   MODULE_DESCRIPTION("SCSI debug adapter driver");
> @@ -5779,6 +5781,7 @@ static int sdebug_driver_probe(struct device *dev)
>   	sdbg_host = to_sdebug_host(dev);
>   
>   	sdebug_driver_template.can_queue = sdebug_max_queue;
> +	sdebug_driver_template.host_tagset = sdebug_host_tagset;
>   	if (!sdebug_clustering)
>   		sdebug_driver_template.dma_boundary = PAGE_SIZE - 1;
>   
> 


[-- Attachment #2: 0002-sg-convert-to-blk_mq-hw-queue-Ming-Lei.patch --]
[-- Type: text/x-patch, Size: 2266 bytes --]

  parent reply index

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-31  2:27 [PATCH 0/9] blk-mq/scsi: convert private reply queue into blk_mq hw queue Ming Lei
2019-05-31  2:27 ` [PATCH 1/9] blk-mq: allow hw queues to share hostwide tags Ming Lei
2019-05-31  6:07   ` Hannes Reinecke
2019-05-31 15:37   ` Bart Van Assche
2019-06-24  8:44     ` Ming Lei
2019-06-05 14:10   ` John Garry
2019-06-24  8:46     ` Ming Lei
2019-06-24 13:14       ` John Garry
2019-05-31  2:27 ` [PATCH 2/9] block: null_blk: introduce module parameter of 'g_host_tags' Ming Lei
2019-05-31  6:08   ` Hannes Reinecke
2019-05-31 15:39   ` Bart Van Assche
2019-06-24  8:43     ` Ming Lei
2019-06-02  1:56   ` Minwoo Im
2019-05-31  2:27 ` [PATCH 3/9] scsi: Add template flag 'host_tagset' Ming Lei
2019-05-31  6:08   ` Hannes Reinecke
2019-05-31  2:27 ` [PATCH 4/9] scsi_debug: support host tagset Ming Lei
2019-05-31  6:09   ` Hannes Reinecke
2019-06-02  2:03   ` Minwoo Im
2019-06-02 17:01   ` Douglas Gilbert [this message]
2019-05-31  2:27 ` [PATCH 5/9] scsi: introduce scsi_cmnd_hctx_index() Ming Lei
2019-05-31  6:10   ` Hannes Reinecke
2019-05-31  2:27 ` [PATCH 6/9] scsi: hpsa: convert private reply queue to blk-mq hw queue Ming Lei
2019-05-31  6:15   ` Hannes Reinecke
2019-05-31  6:30     ` Ming Lei
2019-05-31  6:40       ` Hannes Reinecke
2019-05-31  2:27 ` [PATCH 7/9] scsi: hisi_sas_v3: " Ming Lei
2019-05-31  6:20   ` Hannes Reinecke
2019-05-31  6:34     ` Ming Lei
2019-05-31  6:42       ` Hannes Reinecke
2019-05-31  7:14         ` Ming Lei
2019-05-31 11:38       ` John Garry
2019-06-03 11:00         ` Ming Lei
2019-06-03 13:00           ` John Garry
2019-06-04 13:37             ` Ming Lei
2019-05-31  2:28 ` [PATCH 8/9] scsi: megaraid: " Ming Lei
2019-05-31  6:22   ` Hannes Reinecke
2019-06-01 21:41   ` Kashyap Desai
2019-06-02  6:42     ` Ming Lei
2019-06-02  7:48       ` Ming Lei
2019-06-02 16:34         ` Kashyap Desai
2019-06-03  3:56           ` Ming Lei
2019-06-03 10:00             ` Kashyap Desai
2019-06-07  9:45             ` Kashyap Desai
2019-05-31  2:28 ` [PATCH 9/9] scsi: mp3sas: " Ming Lei
2019-05-31  6:23   ` Hannes Reinecke
2019-06-06 11:58   ` Sreekanth Reddy
2019-06-04  8:49 ` [PATCH 0/9] blk-mq/scsi: convert private reply queue into blk_mq " John Garry
2019-08-13  8:30   ` John Garry

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