netdev - Re: [PATCH] Use Kconfig flag to remove support of deprecated BE2/BE3 adapters

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Date:   Mon, 6 Aug 2018 15:03:54 +0200
From:   Ivan Vecera <ivecera@...hat.com>
To:     Petr Oros <poros@...hat.com>, netdev@...r.kernel.org
Cc:     Sathya Perla <sathya.perla@...adcom.com>,
        Ajit Khaparde <ajit.khaparde@...adcom.com>,
        Sriharsha Basavapatna <sriharsha.basavapatna@...adcom.com>,
        Somnath Kotur <somnath.kotur@...adcom.com>,
        "David S. Miller" <davem@...emloft.net>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Use Kconfig flag to remove support of deprecated BE2/BE3
 adapters

On 6.8.2018 14:12, Petr Oros wrote:
>   Add flags to remove support of deprecated BE2/BE3 adapters.
>   BE2 disable will reduce .ko size by 2kb and BE3 by 3kb.
>   Disable both will reduce .ko size by 9kb.
> 
>   With dissabled support is also removed coresponding PCI IDs
>   and codepath with [BE2|BE3|BEx]_chip checks.
> 
>   New help style in Kconfig
> 
> Signed-off-by: Petr Oros <poros@...hat.com>

Note that this should be placed to -next...

Reviewed-by: Ivan Vecera <ivecera@...hat.com>

> ---
>  drivers/net/ethernet/emulex/benet/Kconfig   | 20 ++++++++++++++++++--
>  drivers/net/ethernet/emulex/benet/be.h      |  8 ++++++++
>  drivers/net/ethernet/emulex/benet/be_main.c |  6 +++++-
>  3 files changed, 31 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/net/ethernet/emulex/benet/Kconfig b/drivers/net/ethernet/emulex/benet/Kconfig
> index b4853ec9de8d..68a9c40adc2a 100644
> --- a/drivers/net/ethernet/emulex/benet/Kconfig
> +++ b/drivers/net/ethernet/emulex/benet/Kconfig
> @@ -1,7 +1,7 @@
>  config BE2NET
>  	tristate "ServerEngines' 10Gbps NIC - BladeEngine"
>  	depends on PCI
> -	---help---
> +	help
>  	  This driver implements the NIC functionality for ServerEngines'
>  	  10Gbps network adapter - BladeEngine.
>  
> @@ -10,6 +10,22 @@ config BE2NET_HWMON
>  	depends on BE2NET && HWMON
>  	depends on !(BE2NET=y && HWMON=m)
>  	default y
> -	---help---
> +	help
>  	  Say Y here if you want to expose thermal sensor data on
>  	  be2net network adapter.
> +
> +config BE2NET_BE2
> +	bool "Support for deprecated BE2 chipsets"
> +	depends on BE2NET
> +	default y
> +	help
> +	  Say Y here if you want to use deprecated Emulex devices based
> +	  on BE2 chipsets.
> +
> +config BE2NET_BE3
> +	bool "Support for deprecated BE3 chipsets"
> +	depends on BE2NET
> +	default y
> +	help
> +	  Say Y here if you want to use deprecated Emulex devices based
> +	  on BE3 chipsets.
> diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
> index 382891f81e09..3038578ec7a7 100644
> --- a/drivers/net/ethernet/emulex/benet/be.h
> +++ b/drivers/net/ethernet/emulex/benet/be.h
> @@ -779,11 +779,19 @@ static inline u16 be_max_any_irqs(struct be_adapter *adapter)
>  #define skyhawk_chip(adapter)	(adapter->pdev->device == OC_DEVICE_ID5 || \
>  				 adapter->pdev->device == OC_DEVICE_ID6)
>  
> +#ifdef CONFIG_BE2NET_BE3
>  #define BE3_chip(adapter)	(adapter->pdev->device == BE_DEVICE_ID2 || \
>  				 adapter->pdev->device == OC_DEVICE_ID2)
> +#else
> +#define BE3_chip(adapter)	(0)
> +#endif /* CONFIG_BE2NET_BE3 */
>  
> +#ifdef CONFIG_BE2NET_BE2
>  #define BE2_chip(adapter)	(adapter->pdev->device == BE_DEVICE_ID1 || \
>  				 adapter->pdev->device == OC_DEVICE_ID1)
> +#else
> +#define BE2_chip(adapter)	(0)
> +#endif /* CONFIG_BE2NET_BE2 */
>  
>  #define BEx_chip(adapter)	(BE3_chip(adapter) || BE2_chip(adapter))
>  
> diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
> index 8f755009ff38..d5b3f0139832 100644
> --- a/drivers/net/ethernet/emulex/benet/be_main.c
> +++ b/drivers/net/ethernet/emulex/benet/be_main.c
> @@ -47,10 +47,14 @@ MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data.");
>  static struct workqueue_struct *be_err_recovery_workq;
>  
>  static const struct pci_device_id be_dev_ids[] = {
> +#ifdef CONFIG_BE2NET_BE2
>  	{ PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
> -	{ PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
>  	{ PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
> +#endif /* CONFIG_BE2NET_BE2 */
> +#ifdef CONFIG_BE2NET_BE3
> +	{ PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
>  	{ PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
> +#endif /* CONFIG_BE2NET_BE3 */
>  	{ PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID3)},
>  	{ PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID4)},
>  	{ PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID5)},
>