amd/xgbe/xgbe.h

9  * Copyright (c) 2014-2016 Advanced Micro Devices, Inc.
59  * Copyright (c) 2014-2016 Advanced Micro Devices, Inc.
120 #include <linux/dma-mapping.h>
137 #define XGBE_DRV_NAME		"amd-xgbe"
140 /* Descriptor related defines */
151 #define XGBE_TX_MAX_BUF_SIZE	(0x3fff & ~(64 - 1))
158  * - Maximum number of SKB frags
159  * - Maximum descriptors for contiguous TSO/GSO packet
160  * - Possible context descriptor
161  * - Possible TSO header descriptor
175 /* DMA cache settings - Outer sharable, write-back, write-allocate */
179 /* DMA cache settings - System, no caches used */
183 /* DMA cache settings - PCI device */
188 /* DMA channel interrupt modes */
197 #define XGMAC_ETH_PREAMBLE	(12 + 8)	/* Inter-frame gap + preamble */
206 #define XGBE_MAC_ADDR_PROPERTY	"mac-address"
207 #define XGBE_PHY_MODE_PROPERTY	"phy-mode"
208 #define XGBE_DMA_IRQS_PROPERTY	"amd,per-channel-interrupt"
209 #define XGBE_SPEEDSET_PROPERTY	"amd,speed-set"
211 /* Device-tree clock names */
216 #define XGBE_ACPI_DMA_FREQ	"amd,dma-freq"
217 #define XGBE_ACPI_PTP_FREQ	"amd,ptp-freq"
233 /* Timestamp support - values based on 50MHz PTP clock
246 	(((_x) + XGMAC_FIFO_UNIT - 1) & ~(XGMAC_FIFO_UNIT - 1))
254  *  since the index is free-running and needs to be and-ed
259 	((_ring)->rdata +					\
260 	 ((_idx) & ((_ring)->rdesc_count - 1)))
276 	(((_x) + XGMAC_FLOW_CONTROL_UNIT - 1) & ~(XGMAC_FLOW_CONTROL_UNIT - 1))
278 	(((_x) < 1024) ? 0 : ((_x) / XGMAC_FLOW_CONTROL_UNIT) - 2)
290 /* Auto-negotiation */
346 	bitmap_copy((_dst)->link_modes._dname,		\
347 		    (_src)->link_modes._sname,		\
386 /* Page allocation related values */
405 /* Tx-related ring data */
411 /* Rx-related ring data */
420 /* Structure used to hold information related to the descriptor
426 	dma_addr_t rdesc_dma;		/* DMA address of descriptor */
429 	dma_addr_t skb_dma;		/* DMA address of SKB data */
430 	unsigned int skb_dma_len;	/* Length of SKB DMA area */
432 	struct xgbe_tx_ring_data tx;	/* Tx-related data */
433 	struct xgbe_rx_ring_data rx;	/* Rx-related data */
439 	 * context descriptor) has not been DMA'd yet the current state
451 	/* Ring lock - used just for TX rings at the moment */
454 	/* Per packet related information */
457 	/* Virtual/DMA addresses and count of allocated descriptor memory */
473 	 *  cur   - Tx: index of descriptor to be used for current transfer
475 	 *  dirty - Tx: index of descriptor to check for transfer complete
495  * a DMA channel.
503 	/* Queue index and base address of queue's DMA registers */
511 	/* Netdev related settings */
833 	/* For TX DMA Operate on Second Frame config */
899 	/* Retrieve new/next mode when trying to auto-negotiate */
904 	/* Retrieve current auto-negotiation mode */
907 	/* Configure auto-negotiation settings */
910 	/* Set/override auto-negotiation advertisement settings */
914 	/* Process results of auto-negotiation */
917 	/* Pre/Post auto-negotiation support */
925 	/* SFP module related info */
999 	unsigned int rwk;		/* PMT remote wake-up packet */
1003 	unsigned int ts;		/* IEEE 1588-2008 Advanced Timestamp */
1016 	unsigned int dma_width;		/* DMA width */
1020 	unsigned int dma_debug;		/* DMA Debug Registers */
1024 	unsigned int l3l4_filter_num;	/* Number of L3-L4 Filters */
1029 	unsigned int rx_ch_cnt;		/* Number of DMA Receive Channels */
1030 	unsigned int tx_ch_cnt;		/* Number of DMA Transmit Channels */
1060 	/* Version related data */
1066 	/* XGMAC/XPCS related mmio registers */
1131 	/* AXI DMA settings */
1142 	/* Rings for Tx/Rx on a DMA channel */
1205 	/* Netdev related settings */
1260 	/* MDIO/PHY related settings */
1276 	/* Auto-negotiation state machine support */