net: stmmac: Switch stmmac_dma_ops to generic HW Interface Helpers

Switch stmmac_dma_ops to generic Hardware Interface Helpers instead of
using hard-coded callbacks. This makes the code more readable and more
flexible.

No functional change.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 106 insertions, 0 deletions

diff --git a/drivers/net/ethernet/stmicro/stmmac/hwif.h b/drivers/net/ethernet/stmicro/stmmac/hwif.h
index 4994677f66cd..e1a9ae63f859 100644
--- a/drivers/net/ethernet/stmicro/stmmac/hwif.h
+++ b/drivers/net/ethernet/stmicro/stmmac/hwif.h
@@ -122,4 +122,110 @@ struct stmmac_desc_ops {
 #define stmmac_set_mss(__priv, __args...) \
 	stmmac_do_void_callback(__priv, desc, set_mss, __args)
 
+struct stmmac_dma_cfg;
+struct dma_features;
+
+/* Specific DMA helpers */
+struct stmmac_dma_ops {
+	/* DMA core initialization */
+	int (*reset)(void __iomem *ioaddr);
+	void (*init)(void __iomem *ioaddr, struct stmmac_dma_cfg *dma_cfg,
+		     u32 dma_tx, u32 dma_rx, int atds);
+	void (*init_chan)(void __iomem *ioaddr,
+			  struct stmmac_dma_cfg *dma_cfg, u32 chan);
+	void (*init_rx_chan)(void __iomem *ioaddr,
+			     struct stmmac_dma_cfg *dma_cfg,
+			     u32 dma_rx_phy, u32 chan);
+	void (*init_tx_chan)(void __iomem *ioaddr,
+			     struct stmmac_dma_cfg *dma_cfg,
+			     u32 dma_tx_phy, u32 chan);
+	/* Configure the AXI Bus Mode Register */
+	void (*axi)(void __iomem *ioaddr, struct stmmac_axi *axi);
+	/* Dump DMA registers */
+	void (*dump_regs)(void __iomem *ioaddr, u32 *reg_space);
+	/* Set tx/rx threshold in the csr6 register
+	 * An invalid value enables the store-and-forward mode */
+	void (*dma_mode)(void __iomem *ioaddr, int txmode, int rxmode,
+			 int rxfifosz);
+	void (*dma_rx_mode)(void __iomem *ioaddr, int mode, u32 channel,
+			    int fifosz, u8 qmode);
+	void (*dma_tx_mode)(void __iomem *ioaddr, int mode, u32 channel,
+			    int fifosz, u8 qmode);
+	/* To track extra statistic (if supported) */
+	void (*dma_diagnostic_fr) (void *data, struct stmmac_extra_stats *x,
+				   void __iomem *ioaddr);
+	void (*enable_dma_transmission) (void __iomem *ioaddr);
+	void (*enable_dma_irq)(void __iomem *ioaddr, u32 chan);
+	void (*disable_dma_irq)(void __iomem *ioaddr, u32 chan);
+	void (*start_tx)(void __iomem *ioaddr, u32 chan);
+	void (*stop_tx)(void __iomem *ioaddr, u32 chan);
+	void (*start_rx)(void __iomem *ioaddr, u32 chan);
+	void (*stop_rx)(void __iomem *ioaddr, u32 chan);
+	int (*dma_interrupt) (void __iomem *ioaddr,
+			      struct stmmac_extra_stats *x, u32 chan);
+	/* If supported then get the optional core features */
+	void (*get_hw_feature)(void __iomem *ioaddr,
+			       struct dma_features *dma_cap);
+	/* Program the HW RX Watchdog */
+	void (*rx_watchdog)(void __iomem *ioaddr, u32 riwt, u32 number_chan);
+	void (*set_tx_ring_len)(void __iomem *ioaddr, u32 len, u32 chan);
+	void (*set_rx_ring_len)(void __iomem *ioaddr, u32 len, u32 chan);
+	void (*set_rx_tail_ptr)(void __iomem *ioaddr, u32 tail_ptr, u32 chan);
+	void (*set_tx_tail_ptr)(void __iomem *ioaddr, u32 tail_ptr, u32 chan);
+	void (*enable_tso)(void __iomem *ioaddr, bool en, u32 chan);
+};
+
+#define stmmac_reset(__priv, __args...) \
+	stmmac_do_callback(__priv, dma, reset, __args)
+#define stmmac_dma_init(__priv, __args...) \
+	stmmac_do_void_callback(__priv, dma, init, __args)
+#define stmmac_init_chan(__priv, __args...) \
+	stmmac_do_void_callback(__priv, dma, init_chan, __args)
+#define stmmac_init_rx_chan(__priv, __args...) \
+	stmmac_do_void_callback(__priv, dma, init_rx_chan, __args)
+#define stmmac_init_tx_chan(__priv, __args...) \
+	stmmac_do_void_callback(__priv, dma, init_tx_chan, __args)
+#define stmmac_axi(__priv, __args...) \
+	stmmac_do_void_callback(__priv, dma, axi, __args)
+#define stmmac_dump_dma_regs(__priv, __args...) \
+	stmmac_do_void_callback(__priv, dma, dump_regs, __args)
+#define stmmac_dma_mode(__priv, __args...) \
+	stmmac_do_void_callback(__priv, dma, dma_mode, __args)
+#define stmmac_dma_rx_mode(__priv, __args...) \
+	stmmac_do_void_callback(__priv, dma, dma_rx_mode, __args)
+#define stmmac_dma_tx_mode(__priv, __args...) \
+	stmmac_do_void_callback(__priv, dma, dma_tx_mode, __args)
+#define stmmac_dma_diagnostic_fr(__priv, __args...) \
+	stmmac_do_void_callback(__priv, dma, dma_diagnostic_fr, __args)
+#define stmmac_enable_dma_transmission(__priv, __args...) \
+	stmmac_do_void_callback(__priv, dma, enable_dma_transmission, __args)
+#define stmmac_enable_dma_irq(__priv, __args...) \
+	stmmac_do_void_callback(__priv, dma, enable_dma_irq, __args)
+#define stmmac_disable_dma_irq(__priv, __args...) \
+	stmmac_do_void_callback(__priv, dma, disable_dma_irq, __args)
+#define stmmac_start_tx(__priv, __args...) \
+	stmmac_do_void_callback(__priv, dma, start_tx, __args)
+#define stmmac_stop_tx(__priv, __args...) \
+	stmmac_do_void_callback(__priv, dma, stop_tx, __args)
+#define stmmac_start_rx(__priv, __args...) \
+	stmmac_do_void_callback(__priv, dma, start_rx, __args)
+#define stmmac_stop_rx(__priv, __args...) \
+	stmmac_do_void_callback(__priv, dma, stop_rx, __args)
+#define stmmac_dma_interrupt_status(__priv, __args...) \
+	stmmac_do_callback(__priv, dma, dma_interrupt, __args)
+#define stmmac_get_hw_feature(__priv, __args...) \
+	stmmac_do_void_callback(__priv, dma, get_hw_feature, __args)
+#define stmmac_rx_watchdog(__priv, __args...) \
+	stmmac_do_void_callback(__priv, dma, rx_watchdog, __args)
+#define stmmac_set_tx_ring_len(__priv, __args...) \
+	stmmac_do_void_callback(__priv, dma, set_tx_ring_len, __args)
+#define stmmac_set_rx_ring_len(__priv, __args...) \
+	stmmac_do_void_callback(__priv, dma, set_rx_ring_len, __args)
+#define stmmac_set_rx_tail_ptr(__priv, __args...) \
+	stmmac_do_void_callback(__priv, dma, set_rx_tail_ptr, __args)
+#define stmmac_set_tx_tail_ptr(__priv, __args...) \
+	stmmac_do_void_callback(__priv, dma, set_tx_tail_ptr, __args)
+#define stmmac_enable_tso(__priv, __args...) \
+	stmmac_do_void_callback(__priv, dma, enable_tso, __args)
+
 #endif /* __STMMAC_HWIF_H__ */