[net] i40e: adds FCoE configure option

[Vasu Dev]

Adds FCoE config option I40E_FCOE, so that FCoE can be enabled
as needed but otherwise have it disabled by default.

This also eliminate multiple FCoE config checks, instead now just
one config check for CONFIG_I40E_FCOE.

The I40E FCoE was added with 3.17 kernel and therefore this patch
shall be applied to stable 3.17 kernel also.

CC: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Vasu Dev <vasu.dev@xxxxxxxxx>
Tested-by: Jim Young <jamesx.m.young@xxxxxxxxx>

---
drivers/net/ethernet/intel/Kconfig           |   11 +++++++++++
 drivers/net/ethernet/intel/i40e/Makefile     |    2 +-
 drivers/net/ethernet/intel/i40e/i40e_osdep.h |    4 ++--
 3 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/intel/Kconfig b/drivers/net/ethernet/intel/Kconfig
index 5b8300a..4d61ef5 100644
--- a/drivers/net/ethernet/intel/Kconfig
+++ b/drivers/net/ethernet/intel/Kconfig
@@ -281,6 +281,17 @@ config I40E_DCB
 
 	  If unsure, say N.
 
+config I40E_FCOE
+	bool "Fibre Channel over Ethernet (FCoE)"
+	default n
+	depends on I40E && DCB && FCOE
+	---help---
+	  Say Y here if you want to use Fibre Channel over Ethernet (FCoE)
+	  in the driver. This will create new netdev for exclusive FCoE
+	  use with XL710 FCoE offloads enabled.
+
+	  If unsure, say N.
+
 config I40EVF
 	tristate "Intel(R) XL710 X710 Virtual Function Ethernet support"
 	depends on PCI_MSI
diff --git a/drivers/net/ethernet/intel/i40e/Makefile b/drivers/net/ethernet/intel/i40e/Makefile
index 4b94ddb..c405819 100644
--- a/drivers/net/ethernet/intel/i40e/Makefile
+++ b/drivers/net/ethernet/intel/i40e/Makefile
@@ -44,4 +44,4 @@ i40e-objs := i40e_main.o \
 	i40e_virtchnl_pf.o
 
 i40e-$(CONFIG_I40E_DCB) += i40e_dcb.o i40e_dcb_nl.o
-i40e-$(CONFIG_FCOE:m=y) += i40e_fcoe.o
+i40e-$(CONFIG_I40E_FCOE) += i40e_fcoe.o
diff --git a/drivers/net/ethernet/intel/i40e/i40e_osdep.h b/drivers/net/ethernet/intel/i40e/i40e_osdep.h
index 045b5c4..ad802dd 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_osdep.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_osdep.h
@@ -78,7 +78,7 @@ do {                                                            \
 } while (0)
 
 typedef enum i40e_status_code i40e_status;
-#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
+#ifdef CONFIG_I40E_FCOE
 #define I40E_FCOE
-#endif /* CONFIG_FCOE or CONFIG_FCOE_MODULE */
+#endif
 #endif /* _I40E_OSDEP_H_ */

> > +		if (ret)
> > +			dev_info(&pf->pdev->dev,
> > +				 "init_pf_fcoe failed: %d\n", ret);
> > +	}
> >
> >  #endif
> >  	/* do basic switch setup */
> > --
> > 1.8.3.1

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