[BNX2]: Add init. code to handle RX pages.

Add new fields to keep track of the pages and the page rings.
Add functions to allocate and free pages.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 28 insertions, 0 deletions

diff --git a/drivers/net/bnx2.h b/drivers/net/bnx2.h
index 8354efc1111d..93c2436cb8b9 100644
--- a/drivers/net/bnx2.h
+++ b/drivers/net/bnx2.h
@@ -335,6 +335,7 @@ struct l2_fhdr {
 #define BNX2_L2CTX_HOST_PG_BDIDX                        0x00000044
 #define BNX2_L2CTX_PG_BUF_SIZE                          0x00000048
 #define BNX2_L2CTX_RBDC_KEY                             0x0000004c
+#define BNX2_L2CTX_RBDC_JUMBO_KEY                        0x3ffe
 #define BNX2_L2CTX_NX_PG_BDHADDR_HI                     0x00000050
 #define BNX2_L2CTX_NX_PG_BDHADDR_LO                     0x00000054
 
@@ -4450,6 +4451,14 @@ struct l2_fhdr {
 #define BNX2_MQ_MEM_RD_DATA2_VALUE                       (0x3fffffffL<<0)
 #define BNX2_MQ_MEM_RD_DATA2_VALUE_XI                    (0x7fffffffL<<0)
 
+#define BNX2_MQ_MAP_L2_3                                0x00003d2c
+#define BNX2_MQ_MAP_L2_3_MQ_OFFSET                       (0xffL<<0)
+#define BNX2_MQ_MAP_L2_3_SZ                              (0x3L<<8)
+#define BNX2_MQ_MAP_L2_3_CTX_OFFSET                      (0x2ffL<<10)
+#define BNX2_MQ_MAP_L2_3_BIN_OFFSET                      (0x7L<<23)
+#define BNX2_MQ_MAP_L2_3_ARM                             (0x3L<<26)
+#define BNX2_MQ_MAP_L2_3_ENA                             (0x1L<<31)
+#define BNX2_MQ_MAP_L2_3_DEFAULT                         0x82004646
 
 /*
  *  tsch_reg definition
@@ -6360,9 +6369,11 @@ struct l2_fhdr {
 #define MAX_TX_DESC_CNT (TX_DESC_CNT - 1)
 
 #define MAX_RX_RINGS    4
+#define MAX_RX_PG_RINGS 16
 #define RX_DESC_CNT  (BCM_PAGE_SIZE / sizeof(struct rx_bd))
 #define MAX_RX_DESC_CNT (RX_DESC_CNT - 1)
 #define MAX_TOTAL_RX_DESC_CNT (MAX_RX_DESC_CNT * MAX_RX_RINGS)
+#define MAX_TOTAL_RX_PG_DESC_CNT (MAX_RX_DESC_CNT * MAX_RX_PG_RINGS)
 
 #define NEXT_TX_BD(x) (((x) & (MAX_TX_DESC_CNT - 1)) ==                 \
                 (MAX_TX_DESC_CNT - 1)) ?                                \
@@ -6375,6 +6386,7 @@ struct l2_fhdr {
         (x) + 2 : (x) + 1
 
 #define RX_RING_IDX(x) ((x) & bp->rx_max_ring_idx)
+#define RX_PG_RING_IDX(x) ((x) & bp->rx_max_pg_ring_idx)
 
 #define RX_RING(x) (((x) & ~MAX_RX_DESC_CNT) >> (BCM_PAGE_BITS - 4))
 #define RX_IDX(x) ((x) & MAX_RX_DESC_CNT)
@@ -6413,7 +6425,13 @@ struct sw_bd {
         DECLARE_PCI_UNMAP_ADDR(mapping)
 };
 
+struct sw_pg {
+        struct page             *page;
+        DECLARE_PCI_UNMAP_ADDR(mapping)
+};
+
 #define SW_RXBD_RING_SIZE (sizeof(struct sw_bd) * RX_DESC_CNT)
+#define SW_RXPG_RING_SIZE (sizeof(struct sw_pg) * RX_DESC_CNT)
 #define RXBD_RING_SIZE (sizeof(struct rx_bd) * RX_DESC_CNT)
 #define SW_TXBD_RING_SIZE (sizeof(struct sw_bd) * TX_DESC_CNT)
 #define TXBD_RING_SIZE (sizeof(struct tx_bd) * TX_DESC_CNT)
@@ -6520,15 +6538,21 @@ struct bnx2 {
         u32                     rx_buf_size;            /* with alignment */
         u32                     rx_copy_thresh;
         u32                     rx_max_ring_idx;
+        u32                     rx_max_pg_ring_idx;
 
         u32                     rx_prod_bseq;
         u16                     rx_prod;
         u16                     rx_cons;
 
+        u16                     rx_pg_prod;
+        u16                     rx_pg_cons;
+
         u32                     rx_csum;
 
         struct sw_bd            *rx_buf_ring;
         struct rx_bd            *rx_desc_ring[MAX_RX_RINGS];
+        struct sw_pg            *rx_pg_ring;
+        struct rx_bd            *rx_pg_desc_ring[MAX_RX_PG_RINGS];
 
         /* TX constants */
         struct tx_bd    *tx_desc_ring;
@@ -6616,6 +6640,10 @@ struct bnx2 {
         int                     rx_ring_size;
         dma_addr_t              rx_desc_mapping[MAX_RX_RINGS];
 
+        int                     rx_max_pg_ring;
+        int                     rx_pg_ring_size;
+        dma_addr_t              rx_pg_desc_mapping[MAX_RX_PG_RINGS];
+
         u16                     tx_quick_cons_trip;
         u16                     tx_quick_cons_trip_int;
         u16                     rx_quick_cons_trip;