1 files changed, 16 insertions, 0 deletions

diff --git a/include/linux/switchtec.h b/include/linux/switchtec.h
index ab400af6f0ce..eee0412bdf4b 100644
--- a/include/linux/switchtec.h
+++ b/include/linux/switchtec.h
@@ -29,6 +29,7 @@
 #define SWITCHTEC_EVENT_EN_IRQ   BIT(3)
 #define SWITCHTEC_EVENT_FATAL    BIT(4)
 
+#define SWITCHTEC_DMA_MRPC_EN   BIT(0)
 enum {
         SWITCHTEC_GAS_MRPC_OFFSET       = 0x0000,
         SWITCHTEC_GAS_TOP_CFG_OFFSET    = 0x1000,
@@ -46,6 +47,10 @@ struct mrpc_regs {
         u32 cmd;
         u32 status;
         u32 ret_value;
+        u32 dma_en;
+        u64 dma_addr;
+        u32 dma_vector;
+        u32 dma_ver;
 } __packed;
 
 enum mrpc_status {
@@ -342,6 +347,14 @@ struct pff_csr_regs {
 
 struct switchtec_ntb;
 
+struct dma_mrpc_output {
+        u32 status;
+        u32 cmd_id;
+        u32 rtn_code;
+        u32 output_size;
+        u8 data[SWITCHTEC_MRPC_PAYLOAD_SIZE];
+};
+
 struct switchtec_dev {
         struct pci_dev *pdev;
         struct device dev;
@@ -381,6 +394,9 @@ struct switchtec_dev {
         u8 link_event_count[SWITCHTEC_MAX_PFF_CSR];
 
         struct switchtec_ntb *sndev;
+
+        struct dma_mrpc_output *dma_mrpc;
+        dma_addr_t dma_mrpc_dma_addr;
 };
 
 static inline struct switchtec_dev *to_stdev(struct device *dev)