1 files changed, 34 insertions, 0 deletions

diff --git a/drivers/net/ibm_newemac/mal.h b/drivers/net/ibm_newemac/mal.h
index 717dc38b6858..2f0a87360844 100644
--- a/drivers/net/ibm_newemac/mal.h
+++ b/drivers/net/ibm_newemac/mal.h
@@ -213,6 +213,8 @@ struct mal_instance {
         struct of_device        *ofdev;
         int                     index;
         spinlock_t              lock;
+
+        unsigned int features;
 };
 
 static inline u32 get_mal_dcrn(struct mal_instance *mal, int reg)
@@ -225,6 +227,38 @@ static inline void set_mal_dcrn(struct mal_instance *mal, int reg, u32 val)
         dcr_write(mal->dcr_host, reg, val);
 }
 
+/* Features of various MAL implementations */
+
+/* Set if you have interrupt coalescing and you have to clear the SDR
+ * register for TXEOB and RXEOB interrupts to work
+ */
+#define MAL_FTR_CLEAR_ICINTSTAT 0x00000001
+
+/* Set if your MAL has SERR, TXDE, and RXDE OR'd into a single UIC
+ * interrupt
+ */
+#define MAL_FTR_COMMON_ERR_INT  0x00000002
+
+enum {
+        MAL_FTRS_ALWAYS = 0,
+
+        MAL_FTRS_POSSIBLE =
+#ifdef CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT
+                MAL_FTR_CLEAR_ICINTSTAT |
+#endif
+#ifdef CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR
+                MAL_FTR_COMMON_ERR_INT |
+#endif
+                0,
+};
+
+static inline int mal_has_feature(struct mal_instance *dev,
+                unsigned long feature)
+{
+        return (MAL_FTRS_ALWAYS & feature) ||
+                (MAL_FTRS_POSSIBLE & dev->features & feature);
+}
+
 /* Register MAL devices */
 int mal_init(void);
 void mal_exit(void);