Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / net / ethernet / samsung / sxgbe / sxgbe_dma.h

diff --git a/kernel/drivers/net/ethernet/samsung/sxgbe/sxgbe_dma.h b/kernel/drivers/net/ethernet/samsung/sxgbe/sxgbe_dma.h
new file mode 100644 (file)
index 0000000..1607b54
--- /dev/null
+++ b/kernel/drivers/net/ethernet/samsung/sxgbe/sxgbe_dma.h
@@ -0,0 +1,50 @@
+/* 10G controller driver for Samsung SoCs
+ *
+ * Copyright (C) 2013 Samsung Electronics Co., Ltd.
+ *             http://www.samsung.com
+ *
+ * Author: Siva Reddy Kallam <siva.kallam@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __SXGBE_DMA_H__
+#define __SXGBE_DMA_H__
+
+/* forward declaration */
+struct sxgbe_extra_stats;
+
+#define SXGBE_DMA_BLENMAP_LSHIFT       1
+#define SXGBE_DMA_TXPBL_LSHIFT         16
+#define SXGBE_DMA_RXPBL_LSHIFT         16
+#define DEFAULT_DMA_PBL                        8
+
+struct sxgbe_dma_ops {
+       /* DMA core initialization */
+       int (*init)(void __iomem *ioaddr, int fix_burst, int burst_map);
+       void (*cha_init)(void __iomem *ioaddr, int cha_num, int fix_burst,
+                        int pbl, dma_addr_t dma_tx, dma_addr_t dma_rx,
+                        int t_rzie, int r_rsize);
+       void (*enable_dma_transmission)(void __iomem *ioaddr, int dma_cnum);
+       void (*enable_dma_irq)(void __iomem *ioaddr, int dma_cnum);
+       void (*disable_dma_irq)(void __iomem *ioaddr, int dma_cnum);
+       void (*start_tx)(void __iomem *ioaddr, int tchannels);
+       void (*start_tx_queue)(void __iomem *ioaddr, int dma_cnum);
+       void (*stop_tx)(void __iomem *ioaddr, int tchannels);
+       void (*stop_tx_queue)(void __iomem *ioaddr, int dma_cnum);
+       void (*start_rx)(void __iomem *ioaddr, int rchannels);
+       void (*stop_rx)(void __iomem *ioaddr, int rchannels);
+       int (*tx_dma_int_status)(void __iomem *ioaddr, int channel_no,
+                                struct sxgbe_extra_stats *x);
+       int (*rx_dma_int_status)(void __iomem *ioaddr, int channel_no,
+                                struct sxgbe_extra_stats *x);
+       /* Program the HW RX Watchdog */
+       void (*rx_watchdog)(void __iomem *ioaddr, u32 riwt);
+       /* Enable TSO for each DMA channel */
+       void (*enable_tso)(void __iomem *ioaddr, u8 chan_num);
+};
+
+const struct sxgbe_dma_ops *sxgbe_get_dma_ops(void);
+
+#endif /* __SXGBE_CORE_H__ */