1 files changed, 19 insertions, 0 deletions

diff --git a/net/rds/ib.h b/net/rds/ib.h
index 9bb7a7412a44..2efd9d11e7d4 100644
--- a/net/rds/ib.h
+++ b/net/rds/ib.h
@@ -21,6 +21,8 @@
 
 #define RDS_IB_SUPPORTED_PROTOCOLS      0x00000003      /* minor versions supported */
 
+#define RDS_IB_RECYCLE_BATCH_COUNT      32
+
 extern struct list_head rds_ib_devices;
 
 /*
@@ -30,14 +32,27 @@ extern struct list_head rds_ib_devices;
  */
 struct rds_page_frag {
         struct list_head        f_item;
+        struct list_head        f_cache_entry;
         struct scatterlist      f_sg;
 };
 
 struct rds_ib_incoming {
         struct list_head        ii_frags;
+        struct list_head        ii_cache_entry;
         struct rds_incoming     ii_inc;
 };
 
+struct rds_ib_cache_head {
+        struct list_head *first;
+        unsigned long count;
+};
+
+struct rds_ib_refill_cache {
+        struct rds_ib_cache_head *percpu;
+        struct list_head         *xfer;
+        struct list_head         *ready;
+};
+
 struct rds_ib_connect_private {
         /* Add new fields at the end, and don't permute existing fields. */
         __be32                  dp_saddr;
@@ -104,6 +119,8 @@ struct rds_ib_connection {
         u64                     i_recv_hdrs_dma;
         struct rds_ib_recv_work *i_recvs;
         u64                     i_ack_recv;     /* last ACK received */
+        struct rds_ib_refill_cache i_cache_incs;
+        struct rds_ib_refill_cache i_cache_frags;
 
         /* sending acks */
         unsigned long           i_ack_flags;
@@ -304,6 +321,8 @@ void rds_ib_flush_mrs(void);
 int __init rds_ib_recv_init(void);
 void rds_ib_recv_exit(void);
 int rds_ib_recv(struct rds_connection *conn);
+int rds_ib_recv_alloc_caches(struct rds_ib_connection *ic);
+void rds_ib_recv_free_caches(struct rds_ib_connection *ic);
 int rds_ib_recv_refill(struct rds_connection *conn, int prefill);
 void rds_ib_inc_free(struct rds_incoming *inc);
 int rds_ib_inc_copy_to_user(struct rds_incoming *inc, struct iovec *iov,