sfc_ef100: register accesses on EF100

EF100 adds a few new valid addresses for efx_writed_page(), as well as
a Function Control Window in the BAR whose location is variable.

Signed-off-by: Edward Cree <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/net/ethernet/sfc/io.h

···
 #endif
 #endif
 
+static inline u32 efx_reg(struct efx_nic *efx, unsigned int reg)
+{
+	return efx->reg_base + reg;
+}
+
 #ifdef EFX_USE_QWORD_IO
 static inline void _efx_writeq(struct efx_nic *efx, __le64 value,
 				  unsigned int reg)
···
 	efx_reado(efx, value, reg + index * sizeof(efx_oword_t));
 }
 
-/* default VI stride (step between per-VI registers) is 8K */
-#define EFX_DEFAULT_VI_STRIDE 0x2000
+/* default VI stride (step between per-VI registers) is 8K on EF10 and
+ * 64K on EF100
+ */
+#define EFX_DEFAULT_VI_STRIDE		0x2000
+#define EF100_DEFAULT_VI_STRIDE		0x10000
 
 /* Calculate offset to page-mapped register */
 static inline unsigned int efx_paged_reg(struct efx_nic *efx, unsigned int page,
···
 #define efx_writed_page(efx, value, reg, page)				\
 	_efx_writed_page(efx, value,					\
 			 reg +						\
-			 BUILD_BUG_ON_ZERO((reg) != 0x400 &&		\
+			 BUILD_BUG_ON_ZERO((reg) != 0x180 &&		\
+					   (reg) != 0x200 &&		\
+					   (reg) != 0x400 &&		\
 					   (reg) != 0x420 &&		\
 					   (reg) != 0x830 &&		\
 					   (reg) != 0x83c &&		\

drivers/net/ethernet/sfc/net_driver.h

···
  * @xdp_rxq_info_failed: Have any of the rx queues failed to initialise their
  *      xdp_rxq_info structures?
  * @mem_bar: The BAR that is mapped into membase.
+ * @reg_base: Offset from the start of the bar to the function control window.
  * @monitor_work: Hardware monitor workitem
  * @biu_lock: BIU (bus interface unit) lock
  * @last_irq_cpu: Last CPU to handle a possible test interrupt.  This
···
 	bool xdp_rxq_info_failed;
 
 	unsigned int mem_bar;
+	u32 reg_base;
 
 	/* The following fields may be written more often */