bnxt_en: Add new flags to setup new page table PTE bits on newer devices.

Newer chips require the PTU_PTE_VALID bit to be set for every page
table entry for context memory and rings.  Additional bits are also
required for page table entries for all rings.  Add a flags field to
bnxt_ring_mem_info struct to specify these additional bits to be used
when setting up the pages tables as needed.

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

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index 2e4b62147cf5..5792e5c18170 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -580,6 +580,10 @@ struct bnxt_sw_rx_agg_bd {
 struct bnxt_ring_mem_info {
 	int			nr_pages;
 	int			page_size;
+	u32			flags;
+#define BNXT_RMEM_VALID_PTE_FLAG	1
+#define BNXT_RMEM_RING_PTE_FLAG		2
+
 	void			**pg_arr;
 	dma_addr_t		*dma_arr;
 
@@ -1109,6 +1113,10 @@ struct bnxt_vf_rep {
 	struct bnxt_vf_rep_stats	tx_stats;
 };
 
+#define PTU_PTE_VALID             0x1UL
+#define PTU_PTE_LAST              0x2UL
+#define PTU_PTE_NEXT_TO_LAST      0x4UL
+
 struct bnxt {
 	void __iomem		*bar0;
 	void __iomem		*bar1;