Re: [PATCH 10/20] [SCSI] mpt3sas: Add branding string support for OEM's HBA

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On Mon, Jun 15, 2015 at 3:16 PM, Johannes Thumshirn <jthumshirn@xxxxxxx> wrote:
> On Fri, Jun 12, 2015 at 03:12:22PM +0530, Sreekanth Reddy wrote:
>> Added the following Dell branding to the mpt3sas driver.
>>
>> "VendorID"   "DeviceID"  "SubsystemVendor ID"  "SubsystemDevice ID"  Dell Branding String
>> 0x1000        0x0097          0x1028                 0x1F46            DELL 12Gbps HBA
>>
>> Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@xxxxxxxxxxxxx>
>> ---
>>  drivers/scsi/mpt3sas/mpt3sas_base.c | 36 ++++++++++++++++++++++++++++++++++++
>>  drivers/scsi/mpt3sas/mpt3sas_base.h | 11 +++++++++++
>>  2 files changed, 47 insertions(+)
>>
>> diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
>> index 6739c0a..db362cb 100644
>> --- a/drivers/scsi/mpt3sas/mpt3sas_base.c
>> +++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
>> @@ -2345,6 +2345,41 @@ _base_display_intel_branding(struct MPT3SAS_ADAPTER *ioc)
>>
>>
>>  /**
>> + * _base_display_dell_branding - Display branding string
>> + * @ioc: per adapter object
>> + *
>> + * Return nothing.
>> + */
>> +static void
>> +_base_display_dell_branding(struct MPT3SAS_ADAPTER *ioc)
>> +{
>> +     if (ioc->pdev->subsystem_vendor != PCI_VENDOR_ID_DELL)
>> +             return;
>> +
>> +     switch (ioc->pdev->device) {
>> +     case MPI25_MFGPAGE_DEVID_SAS3008:
>> +             switch (ioc->pdev->subsystem_device) {
>> +             case MPT3SAS_DELL_12G_HBA_SSDID:
>> +                     pr_info(MPT3SAS_FMT "%s\n", ioc->name,
>> +                             MPT3SAS_DELL_12G_HBA_BRANDING);
>> +                     break;
>> +             default:
>> +                     pr_info(MPT3SAS_FMT
>> +                        "Dell 12Gbps HBA: Subsystem ID: 0x%X\n", ioc->name,
>> +                        ioc->pdev->subsystem_device);
>> +                     break;
>> +             }
>> +             break;
>> +     default:
>> +             pr_info(MPT3SAS_FMT
>> +                     "Dell 12Gbps HBA: Subsystem ID: 0x%X\n", ioc->name,
>> +                     ioc->pdev->subsystem_device);
>> +             break;
>> +     }
>> +}
>> +
>> +
>> +/**
>>   * _base_display_ioc_capabilities - Disply IOC's capabilities.
>>   * @ioc: per adapter object
>>   *
>> @@ -2374,6 +2409,7 @@ _base_display_ioc_capabilities(struct MPT3SAS_ADAPTER *ioc)
>>           bios_version & 0x000000FF);
>>
>>       _base_display_intel_branding(ioc);
>> +     _base_display_dell_branding(ioc);
>>
>>       pr_info(MPT3SAS_FMT "Protocol=(", ioc->name);
>>
>> diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h
>> index 2318ef8..c4780c7 100644
>> --- a/drivers/scsi/mpt3sas/mpt3sas_base.h
>> +++ b/drivers/scsi/mpt3sas/mpt3sas_base.h
>> @@ -152,6 +152,17 @@
>>  #define MPT3SAS_INTEL_RS3UC080_SSDID    0x3524
>>
>>  /*
>> + * Dell HBA branding
>> + */
>> +#define MPT3SAS_DELL_12G_HBA_BRANDING       \
>> +     "Dell 12Gbps HBA"
>> +
>> +/*
>> + * Dell HBA SSDIDs
>> + */
>> +#define MPT3SAS_DELL_12G_HBA_SSDID   0x1F46
>> +
>> +/*
>>   * status bits for ioc->diag_buffer_status
>>   */
>>  #define MPT3_DIAG_BUFFER_IS_REGISTERED       (0x01)
>> --
>> 2.0.2
>>
>> --
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>
> This might be something you might consider re-organizing for your code-base
> merge as well, as it leads to a lot of code duplication the more OEMs you have.

May I know which hunk of this patch may leads to code duplication for
more OEMs we add? Whether declaring individual function for each OEMs
leads to this code duplication.

Thanks,
Sreekanth
>
> --
> Johannes Thumshirn                                       Storage
> jthumshirn@xxxxxxx                             +49 911 74053 689
> SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
> GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
> HRB 21284 (AG Nürnberg)



-- 

Regards,
Sreekanth
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