staging: dpaa2-switch: handle Rx path on control interface

[linux-2.6-microblaze.git] / drivers / staging / fsl-dpaa2 / ethsw / ethsw.h

diff --git a/drivers/staging/fsl-dpaa2/ethsw/ethsw.h b/drivers/staging/fsl-dpaa2/ethsw/ethsw.h
index 50dd529..238f165 100644 (file)
--- a/drivers/staging/fsl-dpaa2/ethsw/ethsw.h
+++ b/drivers/staging/fsl-dpaa2/ethsw/ethsw.h
@@ -53,6 +53,19 @@
 
 #define DPAA2_SWITCH_STORE_SIZE 16
 
+/* Buffer management */
+#define BUFS_PER_CMD                   7
+#define DPAA2_ETHSW_NUM_BUFS           (1024 * BUFS_PER_CMD)
+#define DPAA2_ETHSW_REFILL_THRESH      (DPAA2_ETHSW_NUM_BUFS * 5 / 6)
+
+/* Number of times to retry DPIO portal operations while waiting
+ * for portal to finish executing current command and become
+ * available. We want to avoid being stuck in a while loop in case
+ * hardware becomes unresponsive, but not give up too easily if
+ * the portal really is busy for valid reasons
+ */
+#define DPAA2_SWITCH_SWP_BUSY_RETRIES          1000
+
 extern const struct ethtool_ops dpaa2_switch_port_ethtool_ops;
 
 struct ethsw_core;
@@ -62,6 +75,7 @@ struct dpaa2_switch_fq {
        enum dpsw_queue_type type;
        struct dpaa2_io_store *store;
        struct dpaa2_io_notification_ctx nctx;
+       struct napi_struct napi;
        u32 fqid;
 };
 
@@ -89,6 +103,7 @@ struct ethsw_core {
        unsigned long                   features;
        int                             dev_id;
        struct ethsw_port_priv          **ports;
+       struct iommu_domain             *iommu_domain;
 
        u8                              vlans[VLAN_VID_MASK + 1];
 
@@ -99,7 +114,9 @@ struct ethsw_core {
 
        struct dpaa2_switch_fq          fq[DPAA2_SWITCH_RX_NUM_FQS];
        struct fsl_mc_device            *dpbp_dev;
+       int                             buf_count;
        u16                             bpid;
+       int                             napi_users;
 };
 
 static inline bool dpaa2_switch_supports_cpu_traffic(struct ethsw_core *ethsw)