Merge branch 'mvpp2-per-cpu-buffers'

Matteo Croce says:

====================
mvpp2: per-cpu buffers

This patchset workarounds an PP2 HW limitation which prevents to use
per-cpu rx buffers.
The first patch is just a refactor to prepare for the second one.
The second one allocates percpu buffers if the following conditions are met:
- CPU number is less or equal 4
- no port is using jumbo frames

If the following conditions are not met at load time, of jumbo frame is enabled
later on, the shared allocation is reverted.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/marvell/mvpp2/mvpp2.h

@@ -683,6 +683,7 @@ enum mvpp2_prs_l3_cast {
 #define MVPP2_BM_SHORT_BUF_NUM		2048
 #define MVPP2_BM_POOL_SIZE_MAX		(16*1024 - MVPP2_BM_POOL_PTR_ALIGN/4)
 #define MVPP2_BM_POOL_PTR_ALIGN		128
+#define MVPP2_BM_MAX_POOLS		8
 
 /* BM cookie (32 bits) definition */
 #define MVPP2_BM_COOKIE_POOL_OFFS	8
@@ -787,6 +788,9 @@ struct mvpp2 {
 	/* Aggregated TXQs */
 	struct mvpp2_tx_queue *aggr_txqs;
 
+	/* Are we using page_pool with per-cpu pools? */
+	int percpu_pools;
+
 	/* BM pools */
 	struct mvpp2_bm_pool *bm_pools;