sfc: Extend MTD driver for use with new NICs

In new NICs flash is managed by firmware and we will use high-level
operations on partitions rather than direct SPI commands.  Add support
for multiple MTD partitions per flash device and remove the direct
link between MTD and SPI devices.  Maintain a list of MTD partitions
in struct efx_nic.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h
index 452f83510b0d..e1534ba6ad79 100644
--- a/drivers/net/sfc/net_driver.h
+++ b/drivers/net/sfc/net_driver.h
@@ -674,10 +674,11 @@ union efx_multicast_hash {
  *      interrupt is handled.  It is used by falcon_test_interrupt()
  *      to verify that an interrupt has occurred.
  * @spi_flash: SPI flash device
- *      This field will be %NULL if no flash device is present.
+ *      This field will be %NULL if no flash device is present (or for Siena).
  * @spi_eeprom: SPI EEPROM device
- *      This field will be %NULL if no EEPROM device is present.
+ *      This field will be %NULL if no EEPROM device is present (or for Siena).
  * @spi_lock: SPI bus lock
+ * @mtd_list: List of MTDs attached to the NIC
  * @n_rx_nodesc_drop_cnt: RX no descriptor drop count
  * @nic_data: Hardware dependant state
  * @mac_lock: MAC access lock. Protects @port_enabled, @phy_mode,
@@ -759,6 +760,9 @@ struct efx_nic {
         struct efx_spi_device *spi_flash;
         struct efx_spi_device *spi_eeprom;
         struct mutex spi_lock;
+#ifdef CONFIG_SFC_MTD
+        struct list_head mtd_list;
+#endif
 
         unsigned n_rx_nodesc_drop_cnt;