sfc: Remove versioned bitfield macros

These macros are not extensible to more than two NIC types without
repetition of register definitions, and they are only used to deal
with a few fields in RX_CFG_REG and global events which moved between
Falcon rev A1 and B0.

Therefore:
- Move RX_CFG_REG initialisation into its own function which tests the
  NIC revision just once
- Explicitly test the NIC revision when checking the RX_RECOVERY flag in
  global events
- Merge definitions of RX_XOFF_MAC_EN flag, which did not move
- Remove the macro definitions

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

1 files changed, 3 insertions, 4 deletions

diff --git a/drivers/net/sfc/falcon_hwdefs.h b/drivers/net/sfc/falcon_hwdefs.h
index 2d2261117ace..13f3999449f4 100644
--- a/drivers/net/sfc/falcon_hwdefs.h
+++ b/drivers/net/sfc/falcon_hwdefs.h
@@ -313,8 +313,6 @@
 #define RX_XON_MAC_TH_B0_WIDTH 9
 #define RX_XOFF_MAC_TH_B0_LBN 1
 #define RX_XOFF_MAC_TH_B0_WIDTH 9
-#define RX_XOFF_MAC_EN_B0_LBN 0
-#define RX_XOFF_MAC_EN_B0_WIDTH 1
 
 /* A1 */
 #define RX_DESC_PUSH_EN_A1_LBN 35
@@ -329,8 +327,9 @@
 #define RX_XON_MAC_TH_A1_WIDTH 5
 #define RX_XOFF_MAC_TH_A1_LBN 1
 #define RX_XOFF_MAC_TH_A1_WIDTH 5
-#define RX_XOFF_MAC_EN_A1_LBN 0
-#define RX_XOFF_MAC_EN_A1_WIDTH 1
+
+#define RX_XOFF_MAC_EN_LBN 0
+#define RX_XOFF_MAC_EN_WIDTH 1
 
 /* Receive filter control register */
 #define RX_FILTER_CTL_REG 0x810