sfc: Extend loopback mode enumeration

New NICs and PHYs support a wider variety of loopback modes.

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

1 files changed, 86 insertions, 20 deletions

diff --git a/drivers/net/sfc/enum.h b/drivers/net/sfc/enum.h
index fcd14b73f24d..7a9e79ab9313 100644
--- a/drivers/net/sfc/enum.h
+++ b/drivers/net/sfc/enum.h
@@ -13,38 +13,101 @@
 /**
  * enum efx_loopback_mode - loopback modes
  * @LOOPBACK_NONE: no loopback
- * @LOOPBACK_GMAC: loopback within GMAC at unspecified level
- * @LOOPBACK_XGMII: loopback within XMAC at XGMII level
- * @LOOPBACK_XGXS: loopback within XMAC at XGXS level
- * @LOOPBACK_XAUI: loopback within XMAC at XAUI level
+ * @LOOPBACK_DATA: data path loopback
+ * @LOOPBACK_GMAC: loopback within GMAC
+ * @LOOPBACK_XGMII: loopback after XMAC
+ * @LOOPBACK_XGXS: loopback within BPX after XGXS
+ * @LOOPBACK_XAUI: loopback within BPX before XAUI serdes
+ * @LOOPBACK_GMII: loopback within BPX after GMAC
+ * @LOOPBACK_SGMII: loopback within BPX within SGMII
+ * @LOOPBACK_XGBR: loopback within BPX within XGBR
+ * @LOOPBACK_XFI: loopback within BPX before XFI serdes
+ * @LOOPBACK_XAUI_FAR: loopback within BPX after XAUI serdes
+ * @LOOPBACK_GMII_FAR: loopback within BPX before SGMII
+ * @LOOPBACK_SGMII_FAR: loopback within BPX after SGMII
+ * @LOOPBACK_XFI_FAR: loopback after XFI serdes
  * @LOOPBACK_GPHY: loopback within 1G PHY at unspecified level
  * @LOOPBACK_PHYXS: loopback within 10G PHY at PHYXS level
  * @LOOPBACK_PCS: loopback within 10G PHY at PCS level
  * @LOOPBACK_PMAPMD: loopback within 10G PHY at PMAPMD level
- * @LOOPBACK_NETWORK: reflecting loopback (even further than furthest!)
+ * @LOOPBACK_XPORT: cross port loopback
+ * @LOOPBACK_XGMII_WS: wireside loopback excluding XMAC
+ * @LOOPBACK_XAUI_WS: wireside loopback within BPX within XAUI serdes
+ * @LOOPBACK_XAUI_WS_FAR: wireside loopback within BPX including XAUI serdes
+ * @LOOPBACK_XAUI_WS_NEAR: wireside loopback within BPX excluding XAUI serdes
+ * @LOOPBACK_GMII_WS: wireside loopback excluding GMAC
+ * @LOOPBACK_XFI_WS: wireside loopback excluding XFI serdes
+ * @LOOPBACK_XFI_WS_FAR: wireside loopback including XFI serdes
+ * @LOOPBACK_PHYXS_WS: wireside loopback within 10G PHY at PHYXS level
  */
-/* Please keep in order and up-to-date w.r.t the following two #defines */
+/* Please keep up-to-date w.r.t the following two #defines */
 enum efx_loopback_mode {
         LOOPBACK_NONE = 0,
-        LOOPBACK_GMAC = 1,
-        LOOPBACK_XGMII = 2,
-        LOOPBACK_XGXS = 3,
-        LOOPBACK_XAUI = 4,
-        LOOPBACK_GPHY = 5,
-        LOOPBACK_PHYXS = 6,
-        LOOPBACK_PCS = 7,
-        LOOPBACK_PMAPMD = 8,
-        LOOPBACK_NETWORK = 9,
+        LOOPBACK_DATA = 1,
+        LOOPBACK_GMAC = 2,
+        LOOPBACK_XGMII = 3,
+        LOOPBACK_XGXS = 4,
+        LOOPBACK_XAUI = 5,
+        LOOPBACK_GMII = 6,
+        LOOPBACK_SGMII = 7,
+        LOOPBACK_XGBR = 8,
+        LOOPBACK_XFI = 9,
+        LOOPBACK_XAUI_FAR = 10,
+        LOOPBACK_GMII_FAR = 11,
+        LOOPBACK_SGMII_FAR = 12,
+        LOOPBACK_XFI_FAR = 13,
+        LOOPBACK_GPHY = 14,
+        LOOPBACK_PHYXS = 15,
+        LOOPBACK_PCS = 16,
+        LOOPBACK_PMAPMD = 17,
+        LOOPBACK_XPORT = 18,
+        LOOPBACK_XGMII_WS = 19,
+        LOOPBACK_XAUI_WS = 20,
+        LOOPBACK_XAUI_WS_FAR = 21,
+        LOOPBACK_XAUI_WS_NEAR = 22,
+        LOOPBACK_GMII_WS = 23,
+        LOOPBACK_XFI_WS = 24,
+        LOOPBACK_XFI_WS_FAR = 25,
+        LOOPBACK_PHYXS_WS = 26,
         LOOPBACK_MAX
 };
-
 #define LOOPBACK_TEST_MAX LOOPBACK_PMAPMD
 
 /* These loopbacks occur within the controller */
-#define LOOPBACKS_INTERNAL ((1 << LOOPBACK_GMAC) |     \
-                            (1 << LOOPBACK_XGMII)|     \
-                            (1 << LOOPBACK_XGXS) |     \
-                            (1 << LOOPBACK_XAUI))
+#define LOOPBACKS_INTERNAL ((1 << LOOPBACK_DATA) |              \
+                            (1 << LOOPBACK_GMAC) |              \
+                            (1 << LOOPBACK_XGMII)|              \
+                            (1 << LOOPBACK_XGXS) |              \
+                            (1 << LOOPBACK_XAUI) |              \
+                            (1 << LOOPBACK_GMII) |              \
+                            (1 << LOOPBACK_SGMII) |             \
+                            (1 << LOOPBACK_SGMII) |             \
+                            (1 << LOOPBACK_XGBR) |              \
+                            (1 << LOOPBACK_XFI) |               \
+                            (1 << LOOPBACK_XAUI_FAR) |          \
+                            (1 << LOOPBACK_GMII_FAR) |          \
+                            (1 << LOOPBACK_SGMII_FAR) |         \
+                            (1 << LOOPBACK_XFI_FAR) |           \
+                            (1 << LOOPBACK_XGMII_WS) |          \
+                            (1 << LOOPBACK_XAUI_WS) |           \
+                            (1 << LOOPBACK_XAUI_WS_FAR) |       \
+                            (1 << LOOPBACK_XAUI_WS_NEAR) |      \
+                            (1 << LOOPBACK_GMII_WS) |           \
+                            (1 << LOOPBACK_XFI_WS) |            \
+                            (1 << LOOPBACK_XFI_WS_FAR))
+
+#define LOOPBACKS_WS ((1 << LOOPBACK_XGMII_WS) |                \
+                      (1 << LOOPBACK_XAUI_WS) |                 \
+                      (1 << LOOPBACK_XAUI_WS_FAR) |             \
+                      (1 << LOOPBACK_XAUI_WS_NEAR) |            \
+                      (1 << LOOPBACK_GMII_WS) |                 \
+                      (1 << LOOPBACK_XFI_WS) |                  \
+                      (1 << LOOPBACK_XFI_WS_FAR) |              \
+                      (1 << LOOPBACK_PHYXS_WS))
+
+#define LOOPBACKS_EXTERNAL(_efx)                                        \
+        ((_efx)->loopback_modes & ~LOOPBACKS_INTERNAL &                 \
+         ~(1 << LOOPBACK_NONE))
 
 #define LOOPBACK_MASK(_efx)                     \
         (1 << (_efx)->loopback_mode)
@@ -52,6 +115,9 @@ enum efx_loopback_mode {
 #define LOOPBACK_INTERNAL(_efx)                         \
         (!!(LOOPBACKS_INTERNAL & LOOPBACK_MASK(_efx)))
 
+#define LOOPBACK_EXTERNAL(_efx)                         \
+        (!!(LOOPBACK_MASK(_efx) & LOOPBACKS_EXTERNAL(_efx)))
+
 #define LOOPBACK_CHANGED(_from, _to, _mask)                             \
         (!!((LOOPBACK_MASK(_from) ^ LOOPBACK_MASK(_to)) & (_mask)))