linux-kernel - Re: [v2 PATCH 1/3] scsi:stex.c Support to Pegasus series.

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Message-ID: <mqd37yvbnbo.fsf@c203.arch.suse.de>
Date:	Thu, 03 Sep 2015 16:16:11 +0200
From:	Johannes Thumshirn <jthumshirn@...e.de>
To:	Charles Chiou <ch1102chiou@...il.com>
Cc:	Christoph Hellwig <hch@...radead.org>, JBottomley@...allels.com,
	Oliver Neukum <oneukum@...e.de>, grace.chang@...promise.com,
	linus.chen@...promise.com, victor.p@...mise.com,
	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [v2 PATCH 1/3] scsi:stex.c Support to Pegasus series.

Charles Chiou <ch1102chiou@...il.com> writes:

> From 9d7973dfa05a7785d0eb1e9bcfb0fb6d2c493209 Mon Sep 17 00:00:00 2001
> From: Charles <charles.chiou@...promise.com>
> Date: Wed, 2 Sep 2015 20:41:56 +0800
> Subject: [PATCH 1/3] scsi:stex.c Support to Pegasus series.
>
> Pegasus is a high performace hardware RAID solution designed to unleash
> the raw power of Thunderbolt technology.
>
> 1. Add code to distinct SuperTrack and Pegasus series by sub device ID.
>    It should support backward compatibility.
>
> 2. Change the driver version.
>
> V2: Remove blank lines
>
> Signed-off-by: Charles Chiou <charles.chiou@...promise.com>
> ---
>  drivers/scsi/stex.c | 32 ++++++++++++++++++++++++++------
>  1 file changed, 26 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c
> index 98a62bc..0c93f1f 100644
> --- a/drivers/scsi/stex.c
> +++ b/drivers/scsi/stex.c
> @@ -1,7 +1,7 @@
>  /*
>   * SuperTrak EX Series Storage Controller driver for Linux
>   *
> - *	Copyright (C) 2005-2009 Promise Technology Inc.
> + *	Copyright (C) 2005-2015 Promise Technology Inc.
>   *
>   *	This program is free software; you can redistribute it and/or
>   *	modify it under the terms of the GNU General Public License
> @@ -37,11 +37,11 @@
>  #include <scsi/scsi_eh.h>
>
>  #define DRV_NAME "stex"
> -#define ST_DRIVER_VERSION "4.6.0000.4"
> -#define ST_VER_MAJOR		4
> -#define ST_VER_MINOR		6
> -#define ST_OEM			0
> -#define ST_BUILD_VER		4
> +#define ST_DRIVER_VERSION	"5.00.0000.01"
> +#define ST_VER_MAJOR		5
> +#define ST_VER_MINOR		00
> +#define ST_OEM				0000
> +#define ST_BUILD_VER		01
>
>  enum {
>  	/* MU register offset */
> @@ -327,6 +327,7 @@ struct st_hba {
>  	u16 rq_count;
>  	u16 rq_size;
>  	u16 sts_count;
> +	u8  supports_pm;
>  };
>
>  struct st_card_info {
> @@ -1568,6 +1569,25 @@ static int stex_probe(struct pci_dev *pdev, const struct
> pci_device_id *id)
>
>  	hba->cardtype = (unsigned int) id->driver_data;
>  	ci = &stex_card_info[hba->cardtype];
> +	switch (id->subdevice) {
> +	case 0x4221:
> +	case 0x4222:
> +	case 0x4223:
> +	case 0x4224:
> +	case 0x4225:
> +	case 0x4226:
> +	case 0x4227:
> +	case 0x4261:
> +	case 0x4262:
> +	case 0x4263:
> +	case 0x4264:
> +	case 0x4265:
> +		break;
> +	default:
> +		if (hba->cardtype == st_yel)
> +			hba->supports_pm = 1;
> +	}
> +
>  	sts_offset = scratch_offset = (ci->rq_count+1) * ci->rq_size;
>  	if (hba->cardtype == st_yel)
>  		sts_offset += (ci->sts_count+1) * sizeof(u32);

I somehow find that switch() above awkward to read, but if no-one else
objects, who am I to do.

Reviewed-by: Johannes Thumshirn <jthumshirn@...e.de>

-- 
Johannes Thumshirn                                           Storage
jthumshirn@...e.de                                 +49 911 74053 689
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
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