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danborkmann@iogearbox.net8a3b7a22012-01-19 00:39:31 +00001/*
2 * Definitions for Xilinx Axi Ethernet device driver.
3 *
4 * Copyright (c) 2009 Secret Lab Technologies, Ltd.
Michal Simek59a54f32012-04-12 01:11:12 +00005 * Copyright (c) 2010 - 2012 Xilinx, Inc. All rights reserved.
danborkmann@iogearbox.net8a3b7a22012-01-19 00:39:31 +00006 */
7
8#ifndef XILINX_AXIENET_H
9#define XILINX_AXIENET_H
10
11#include <linux/netdevice.h>
12#include <linux/spinlock.h>
13#include <linux/interrupt.h>
14
15/* Packet size info */
16#define XAE_HDR_SIZE 14 /* Size of Ethernet header */
17#define XAE_HDR_VLAN_SIZE 18 /* Size of an Ethernet hdr + VLAN */
18#define XAE_TRL_SIZE 4 /* Size of Ethernet trailer (FCS) */
19#define XAE_MTU 1500 /* Max MTU of an Ethernet frame */
20#define XAE_JUMBO_MTU 9000 /* Max MTU of a jumbo Eth. frame */
21
22#define XAE_MAX_FRAME_SIZE (XAE_MTU + XAE_HDR_SIZE + XAE_TRL_SIZE)
23#define XAE_MAX_VLAN_FRAME_SIZE (XAE_MTU + XAE_HDR_VLAN_SIZE + XAE_TRL_SIZE)
24#define XAE_MAX_JUMBO_FRAME_SIZE (XAE_JUMBO_MTU + XAE_HDR_SIZE + XAE_TRL_SIZE)
25
26/* Configuration options */
27
28/* Accept all incoming packets. Default: disabled (cleared) */
29#define XAE_OPTION_PROMISC (1 << 0)
30
31/* Jumbo frame support for Tx & Rx. Default: disabled (cleared) */
32#define XAE_OPTION_JUMBO (1 << 1)
33
34/* VLAN Rx & Tx frame support. Default: disabled (cleared) */
35#define XAE_OPTION_VLAN (1 << 2)
36
37/* Enable recognition of flow control frames on Rx. Default: enabled (set) */
38#define XAE_OPTION_FLOW_CONTROL (1 << 4)
39
40/* Strip FCS and PAD from incoming frames. Note: PAD from VLAN frames is not
41 * stripped. Default: disabled (set) */
42#define XAE_OPTION_FCS_STRIP (1 << 5)
43
44/* Generate FCS field and add PAD automatically for outgoing frames.
45 * Default: enabled (set) */
46#define XAE_OPTION_FCS_INSERT (1 << 6)
47
48/* Enable Length/Type error checking for incoming frames. When this option is
49 * set, the MAC will filter frames that have a mismatched type/length field
50 * and if XAE_OPTION_REPORT_RXERR is set, the user is notified when these
51 * types of frames are encountered. When this option is cleared, the MAC will
52 * allow these types of frames to be received. Default: enabled (set) */
53#define XAE_OPTION_LENTYPE_ERR (1 << 7)
54
55/* Enable the transmitter. Default: enabled (set) */
56#define XAE_OPTION_TXEN (1 << 11)
57
58/* Enable the receiver. Default: enabled (set) */
59#define XAE_OPTION_RXEN (1 << 12)
60
61/* Default options set when device is initialized or reset */
62#define XAE_OPTION_DEFAULTS \
63 (XAE_OPTION_TXEN | \
64 XAE_OPTION_FLOW_CONTROL | \
65 XAE_OPTION_RXEN)
66
67/* Axi DMA Register definitions */
68
69#define XAXIDMA_TX_CR_OFFSET 0x00000000 /* Channel control */
70#define XAXIDMA_TX_SR_OFFSET 0x00000004 /* Status */
71#define XAXIDMA_TX_CDESC_OFFSET 0x00000008 /* Current descriptor pointer */
72#define XAXIDMA_TX_TDESC_OFFSET 0x00000010 /* Tail descriptor pointer */
73
74#define XAXIDMA_RX_CR_OFFSET 0x00000030 /* Channel control */
75#define XAXIDMA_RX_SR_OFFSET 0x00000034 /* Status */
76#define XAXIDMA_RX_CDESC_OFFSET 0x00000038 /* Current descriptor pointer */
77#define XAXIDMA_RX_TDESC_OFFSET 0x00000040 /* Tail descriptor pointer */
78
79#define XAXIDMA_CR_RUNSTOP_MASK 0x00000001 /* Start/stop DMA channel */
80#define XAXIDMA_CR_RESET_MASK 0x00000004 /* Reset DMA engine */
81
82#define XAXIDMA_BD_NDESC_OFFSET 0x00 /* Next descriptor pointer */
83#define XAXIDMA_BD_BUFA_OFFSET 0x08 /* Buffer address */
84#define XAXIDMA_BD_CTRL_LEN_OFFSET 0x18 /* Control/buffer length */
85#define XAXIDMA_BD_STS_OFFSET 0x1C /* Status */
86#define XAXIDMA_BD_USR0_OFFSET 0x20 /* User IP specific word0 */
87#define XAXIDMA_BD_USR1_OFFSET 0x24 /* User IP specific word1 */
88#define XAXIDMA_BD_USR2_OFFSET 0x28 /* User IP specific word2 */
89#define XAXIDMA_BD_USR3_OFFSET 0x2C /* User IP specific word3 */
90#define XAXIDMA_BD_USR4_OFFSET 0x30 /* User IP specific word4 */
91#define XAXIDMA_BD_ID_OFFSET 0x34 /* Sw ID */
92#define XAXIDMA_BD_HAS_STSCNTRL_OFFSET 0x38 /* Whether has stscntrl strm */
93#define XAXIDMA_BD_HAS_DRE_OFFSET 0x3C /* Whether has DRE */
94
95#define XAXIDMA_BD_HAS_DRE_SHIFT 8 /* Whether has DRE shift */
96#define XAXIDMA_BD_HAS_DRE_MASK 0xF00 /* Whether has DRE mask */
97#define XAXIDMA_BD_WORDLEN_MASK 0xFF /* Whether has DRE mask */
98
99#define XAXIDMA_BD_CTRL_LENGTH_MASK 0x007FFFFF /* Requested len */
100#define XAXIDMA_BD_CTRL_TXSOF_MASK 0x08000000 /* First tx packet */
101#define XAXIDMA_BD_CTRL_TXEOF_MASK 0x04000000 /* Last tx packet */
102#define XAXIDMA_BD_CTRL_ALL_MASK 0x0C000000 /* All control bits */
103
104#define XAXIDMA_DELAY_MASK 0xFF000000 /* Delay timeout counter */
105#define XAXIDMA_COALESCE_MASK 0x00FF0000 /* Coalesce counter */
106
107#define XAXIDMA_DELAY_SHIFT 24
108#define XAXIDMA_COALESCE_SHIFT 16
109
110#define XAXIDMA_IRQ_IOC_MASK 0x00001000 /* Completion intr */
111#define XAXIDMA_IRQ_DELAY_MASK 0x00002000 /* Delay interrupt */
112#define XAXIDMA_IRQ_ERROR_MASK 0x00004000 /* Error interrupt */
113#define XAXIDMA_IRQ_ALL_MASK 0x00007000 /* All interrupts */
114
115/* Default TX/RX Threshold and waitbound values for SGDMA mode */
116#define XAXIDMA_DFT_TX_THRESHOLD 24
117#define XAXIDMA_DFT_TX_WAITBOUND 254
118#define XAXIDMA_DFT_RX_THRESHOLD 24
119#define XAXIDMA_DFT_RX_WAITBOUND 254
120
121#define XAXIDMA_BD_CTRL_TXSOF_MASK 0x08000000 /* First tx packet */
122#define XAXIDMA_BD_CTRL_TXEOF_MASK 0x04000000 /* Last tx packet */
123#define XAXIDMA_BD_CTRL_ALL_MASK 0x0C000000 /* All control bits */
124
125#define XAXIDMA_BD_STS_ACTUAL_LEN_MASK 0x007FFFFF /* Actual len */
126#define XAXIDMA_BD_STS_COMPLETE_MASK 0x80000000 /* Completed */
127#define XAXIDMA_BD_STS_DEC_ERR_MASK 0x40000000 /* Decode error */
128#define XAXIDMA_BD_STS_SLV_ERR_MASK 0x20000000 /* Slave error */
129#define XAXIDMA_BD_STS_INT_ERR_MASK 0x10000000 /* Internal err */
130#define XAXIDMA_BD_STS_ALL_ERR_MASK 0x70000000 /* All errors */
131#define XAXIDMA_BD_STS_RXSOF_MASK 0x08000000 /* First rx pkt */
132#define XAXIDMA_BD_STS_RXEOF_MASK 0x04000000 /* Last rx pkt */
133#define XAXIDMA_BD_STS_ALL_MASK 0xFC000000 /* All status bits */
134
135#define XAXIDMA_BD_MINIMUM_ALIGNMENT 0x40
136
137/* Axi Ethernet registers definition */
138#define XAE_RAF_OFFSET 0x00000000 /* Reset and Address filter */
139#define XAE_TPF_OFFSET 0x00000004 /* Tx Pause Frame */
140#define XAE_IFGP_OFFSET 0x00000008 /* Tx Inter-frame gap adjustment*/
141#define XAE_IS_OFFSET 0x0000000C /* Interrupt status */
142#define XAE_IP_OFFSET 0x00000010 /* Interrupt pending */
143#define XAE_IE_OFFSET 0x00000014 /* Interrupt enable */
144#define XAE_TTAG_OFFSET 0x00000018 /* Tx VLAN TAG */
145#define XAE_RTAG_OFFSET 0x0000001C /* Rx VLAN TAG */
146#define XAE_UAWL_OFFSET 0x00000020 /* Unicast address word lower */
147#define XAE_UAWU_OFFSET 0x00000024 /* Unicast address word upper */
148#define XAE_TPID0_OFFSET 0x00000028 /* VLAN TPID0 register */
149#define XAE_TPID1_OFFSET 0x0000002C /* VLAN TPID1 register */
150#define XAE_PPST_OFFSET 0x00000030 /* PCS PMA Soft Temac Status Reg */
151#define XAE_RCW0_OFFSET 0x00000400 /* Rx Configuration Word 0 */
152#define XAE_RCW1_OFFSET 0x00000404 /* Rx Configuration Word 1 */
153#define XAE_TC_OFFSET 0x00000408 /* Tx Configuration */
154#define XAE_FCC_OFFSET 0x0000040C /* Flow Control Configuration */
155#define XAE_EMMC_OFFSET 0x00000410 /* EMAC mode configuration */
156#define XAE_PHYC_OFFSET 0x00000414 /* RGMII/SGMII configuration */
157#define XAE_MDIO_MC_OFFSET 0x00000500 /* MII Management Config */
158#define XAE_MDIO_MCR_OFFSET 0x00000504 /* MII Management Control */
159#define XAE_MDIO_MWD_OFFSET 0x00000508 /* MII Management Write Data */
160#define XAE_MDIO_MRD_OFFSET 0x0000050C /* MII Management Read Data */
161#define XAE_MDIO_MIS_OFFSET 0x00000600 /* MII Management Interrupt Status */
162#define XAE_MDIO_MIP_OFFSET 0x00000620 /* MII Mgmt Interrupt Pending
163 * register offset */
164#define XAE_MDIO_MIE_OFFSET 0x00000640 /* MII Management Interrupt Enable
165 * register offset */
166#define XAE_MDIO_MIC_OFFSET 0x00000660 /* MII Management Interrupt Clear
167 * register offset. */
168#define XAE_UAW0_OFFSET 0x00000700 /* Unicast address word 0 */
169#define XAE_UAW1_OFFSET 0x00000704 /* Unicast address word 1 */
170#define XAE_FMI_OFFSET 0x00000708 /* Filter Mask Index */
171#define XAE_AF0_OFFSET 0x00000710 /* Address Filter 0 */
172#define XAE_AF1_OFFSET 0x00000714 /* Address Filter 1 */
173
174#define XAE_TX_VLAN_DATA_OFFSET 0x00004000 /* TX VLAN data table address */
175#define XAE_RX_VLAN_DATA_OFFSET 0x00008000 /* RX VLAN data table address */
176#define XAE_MCAST_TABLE_OFFSET 0x00020000 /* Multicast table address */
177
178/* Bit Masks for Axi Ethernet RAF register */
179#define XAE_RAF_MCSTREJ_MASK 0x00000002 /* Reject receive multicast
180 * destination address */
181#define XAE_RAF_BCSTREJ_MASK 0x00000004 /* Reject receive broadcast
182 * destination address */
183#define XAE_RAF_TXVTAGMODE_MASK 0x00000018 /* Tx VLAN TAG mode */
184#define XAE_RAF_RXVTAGMODE_MASK 0x00000060 /* Rx VLAN TAG mode */
185#define XAE_RAF_TXVSTRPMODE_MASK 0x00000180 /* Tx VLAN STRIP mode */
186#define XAE_RAF_RXVSTRPMODE_MASK 0x00000600 /* Rx VLAN STRIP mode */
187#define XAE_RAF_NEWFNCENBL_MASK 0x00000800 /* New function mode */
188#define XAE_RAF_EMULTIFLTRENBL_MASK 0x00001000 /* Exteneded Multicast
189 * Filtering mode
190 */
191#define XAE_RAF_STATSRST_MASK 0x00002000 /* Stats. Counter Reset */
192#define XAE_RAF_RXBADFRMEN_MASK 0x00004000 /* Recv Bad Frame Enable */
193#define XAE_RAF_TXVTAGMODE_SHIFT 3 /* Tx Tag mode shift bits */
194#define XAE_RAF_RXVTAGMODE_SHIFT 5 /* Rx Tag mode shift bits */
195#define XAE_RAF_TXVSTRPMODE_SHIFT 7 /* Tx strip mode shift bits*/
196#define XAE_RAF_RXVSTRPMODE_SHIFT 9 /* Rx Strip mode shift bits*/
197
198/* Bit Masks for Axi Ethernet TPF and IFGP registers */
199#define XAE_TPF_TPFV_MASK 0x0000FFFF /* Tx pause frame value */
200#define XAE_IFGP0_IFGP_MASK 0x0000007F /* Transmit inter-frame
201 * gap adjustment value */
202
203/* Bit Masks for Axi Ethernet IS, IE and IP registers, Same masks apply
204 * for all 3 registers. */
205#define XAE_INT_HARDACSCMPLT_MASK 0x00000001 /* Hard register access
206 * complete */
207#define XAE_INT_AUTONEG_MASK 0x00000002 /* Auto negotiation
208 * complete */
209#define XAE_INT_RXCMPIT_MASK 0x00000004 /* Rx complete */
210#define XAE_INT_RXRJECT_MASK 0x00000008 /* Rx frame rejected */
211#define XAE_INT_RXFIFOOVR_MASK 0x00000010 /* Rx fifo overrun */
212#define XAE_INT_TXCMPIT_MASK 0x00000020 /* Tx complete */
213#define XAE_INT_RXDCMLOCK_MASK 0x00000040 /* Rx Dcm Lock */
214#define XAE_INT_MGTRDY_MASK 0x00000080 /* MGT clock Lock */
215#define XAE_INT_PHYRSTCMPLT_MASK 0x00000100 /* Phy Reset complete */
216#define XAE_INT_ALL_MASK 0x0000003F /* All the ints */
217
218#define XAE_INT_RECV_ERROR_MASK \
219 (XAE_INT_RXRJECT_MASK | XAE_INT_RXFIFOOVR_MASK) /* INT bits that
220 * indicate receive
221 * errors */
222
223/* Bit masks for Axi Ethernet VLAN TPID Word 0 register */
224#define XAE_TPID_0_MASK 0x0000FFFF /* TPID 0 */
225#define XAE_TPID_1_MASK 0xFFFF0000 /* TPID 1 */
226
227/* Bit masks for Axi Ethernet VLAN TPID Word 1 register */
228#define XAE_TPID_2_MASK 0x0000FFFF /* TPID 0 */
229#define XAE_TPID_3_MASK 0xFFFF0000 /* TPID 1 */
230
231/* Bit masks for Axi Ethernet RCW1 register */
232#define XAE_RCW1_RST_MASK 0x80000000 /* Reset */
233#define XAE_RCW1_JUM_MASK 0x40000000 /* Jumbo frame enable */
234#define XAE_RCW1_FCS_MASK 0x20000000 /* In-Band FCS enable
235 * (FCS not stripped) */
236#define XAE_RCW1_RX_MASK 0x10000000 /* Receiver enable */
237#define XAE_RCW1_VLAN_MASK 0x08000000 /* VLAN frame enable */
238#define XAE_RCW1_LT_DIS_MASK 0x02000000 /* Length/type field valid check
239 * disable */
240#define XAE_RCW1_CL_DIS_MASK 0x01000000 /* Control frame Length check
241 * disable */
242#define XAE_RCW1_PAUSEADDR_MASK 0x0000FFFF /* Pause frame source address
243 * bits [47:32]. Bits [31:0] are
244 * stored in register RCW0 */
245
246/* Bit masks for Axi Ethernet TC register */
247#define XAE_TC_RST_MASK 0x80000000 /* Reset */
248#define XAE_TC_JUM_MASK 0x40000000 /* Jumbo frame enable */
249#define XAE_TC_FCS_MASK 0x20000000 /* In-Band FCS enable
250 * (FCS not generated) */
251#define XAE_TC_TX_MASK 0x10000000 /* Transmitter enable */
252#define XAE_TC_VLAN_MASK 0x08000000 /* VLAN frame enable */
253#define XAE_TC_IFG_MASK 0x02000000 /* Inter-frame gap adjustment
254 * enable */
255
256/* Bit masks for Axi Ethernet FCC register */
257#define XAE_FCC_FCRX_MASK 0x20000000 /* Rx flow control enable */
258#define XAE_FCC_FCTX_MASK 0x40000000 /* Tx flow control enable */
259
260/* Bit masks for Axi Ethernet EMMC register */
261#define XAE_EMMC_LINKSPEED_MASK 0xC0000000 /* Link speed */
262#define XAE_EMMC_RGMII_MASK 0x20000000 /* RGMII mode enable */
263#define XAE_EMMC_SGMII_MASK 0x10000000 /* SGMII mode enable */
264#define XAE_EMMC_GPCS_MASK 0x08000000 /* 1000BaseX mode enable */
265#define XAE_EMMC_HOST_MASK 0x04000000 /* Host interface enable */
266#define XAE_EMMC_TX16BIT 0x02000000 /* 16 bit Tx client enable */
267#define XAE_EMMC_RX16BIT 0x01000000 /* 16 bit Rx client enable */
268#define XAE_EMMC_LINKSPD_10 0x00000000 /* Link Speed mask for 10 Mbit */
269#define XAE_EMMC_LINKSPD_100 0x40000000 /* Link Speed mask for 100 Mbit */
270#define XAE_EMMC_LINKSPD_1000 0x80000000 /* Link Speed mask for 1000 Mbit */
271
272/* Bit masks for Axi Ethernet PHYC register */
273#define XAE_PHYC_SGMIILINKSPEED_MASK 0xC0000000 /* SGMII link speed mask*/
274#define XAE_PHYC_RGMIILINKSPEED_MASK 0x0000000C /* RGMII link speed */
275#define XAE_PHYC_RGMIIHD_MASK 0x00000002 /* RGMII Half-duplex */
276#define XAE_PHYC_RGMIILINK_MASK 0x00000001 /* RGMII link status */
277#define XAE_PHYC_RGLINKSPD_10 0x00000000 /* RGMII link 10 Mbit */
278#define XAE_PHYC_RGLINKSPD_100 0x00000004 /* RGMII link 100 Mbit */
279#define XAE_PHYC_RGLINKSPD_1000 0x00000008 /* RGMII link 1000 Mbit */
280#define XAE_PHYC_SGLINKSPD_10 0x00000000 /* SGMII link 10 Mbit */
281#define XAE_PHYC_SGLINKSPD_100 0x40000000 /* SGMII link 100 Mbit */
282#define XAE_PHYC_SGLINKSPD_1000 0x80000000 /* SGMII link 1000 Mbit */
283
284/* Bit masks for Axi Ethernet MDIO interface MC register */
285#define XAE_MDIO_MC_MDIOEN_MASK 0x00000040 /* MII management enable */
286#define XAE_MDIO_MC_CLOCK_DIVIDE_MAX 0x3F /* Maximum MDIO divisor */
287
288/* Bit masks for Axi Ethernet MDIO interface MCR register */
289#define XAE_MDIO_MCR_PHYAD_MASK 0x1F000000 /* Phy Address Mask */
290#define XAE_MDIO_MCR_PHYAD_SHIFT 24 /* Phy Address Shift */
291#define XAE_MDIO_MCR_REGAD_MASK 0x001F0000 /* Reg Address Mask */
292#define XAE_MDIO_MCR_REGAD_SHIFT 16 /* Reg Address Shift */
293#define XAE_MDIO_MCR_OP_MASK 0x0000C000 /* Operation Code Mask */
294#define XAE_MDIO_MCR_OP_SHIFT 13 /* Operation Code Shift */
295#define XAE_MDIO_MCR_OP_READ_MASK 0x00008000 /* Op Code Read Mask */
296#define XAE_MDIO_MCR_OP_WRITE_MASK 0x00004000 /* Op Code Write Mask */
297#define XAE_MDIO_MCR_INITIATE_MASK 0x00000800 /* Ready Mask */
298#define XAE_MDIO_MCR_READY_MASK 0x00000080 /* Ready Mask */
299
300/* Bit masks for Axi Ethernet MDIO interface MIS, MIP, MIE, MIC registers */
301#define XAE_MDIO_INT_MIIM_RDY_MASK 0x00000001 /* MIIM Interrupt */
302
303/* Bit masks for Axi Ethernet UAW1 register */
304#define XAE_UAW1_UNICASTADDR_MASK 0x0000FFFF /* Station address bits
305 * [47:32]; Station address
306 * bits [31:0] are stored in
307 * register UAW0 */
308
309/* Bit masks for Axi Ethernet FMI register */
310#define XAE_FMI_PM_MASK 0x80000000 /* Promis. mode enable */
311#define XAE_FMI_IND_MASK 0x00000003 /* Index Mask */
312
313#define XAE_MDIO_DIV_DFT 29 /* Default MDIO clock divisor */
314
315/* Defines for different options for C_PHY_TYPE parameter in Axi Ethernet IP */
316#define XAE_PHY_TYPE_MII 0
317#define XAE_PHY_TYPE_GMII 1
318#define XAE_PHY_TYPE_RGMII_1_3 2
319#define XAE_PHY_TYPE_RGMII_2_0 3
320#define XAE_PHY_TYPE_SGMII 4
321#define XAE_PHY_TYPE_1000BASE_X 5
322
323#define XAE_MULTICAST_CAM_TABLE_NUM 4 /* Total number of entries in the
324 * hardware multicast table. */
325
326/* Axi Ethernet Synthesis features */
327#define XAE_FEATURE_PARTIAL_RX_CSUM (1 << 0)
328#define XAE_FEATURE_PARTIAL_TX_CSUM (1 << 1)
329#define XAE_FEATURE_FULL_RX_CSUM (1 << 2)
330#define XAE_FEATURE_FULL_TX_CSUM (1 << 3)
331
332#define XAE_NO_CSUM_OFFLOAD 0
333
334#define XAE_FULL_CSUM_STATUS_MASK 0x00000038
335#define XAE_IP_UDP_CSUM_VALIDATED 0x00000003
336#define XAE_IP_TCP_CSUM_VALIDATED 0x00000002
337
338#define DELAY_OF_ONE_MILLISEC 1000
339
340/**
341 * struct axidma_bd - Axi Dma buffer descriptor layout
342 * @next: MM2S/S2MM Next Descriptor Pointer
343 * @reserved1: Reserved and not used
344 * @phys: MM2S/S2MM Buffer Address
345 * @reserved2: Reserved and not used
346 * @reserved3: Reserved and not used
347 * @reserved4: Reserved and not used
348 * @cntrl: MM2S/S2MM Control value
349 * @status: MM2S/S2MM Status value
350 * @app0: MM2S/S2MM User Application Field 0.
351 * @app1: MM2S/S2MM User Application Field 1.
352 * @app2: MM2S/S2MM User Application Field 2.
353 * @app3: MM2S/S2MM User Application Field 3.
354 * @app4: MM2S/S2MM User Application Field 4.
355 * @sw_id_offset: MM2S/S2MM Sw ID
356 * @reserved5: Reserved and not used
357 * @reserved6: Reserved and not used
358 */
359struct axidma_bd {
360 u32 next; /* Physical address of next buffer descriptor */
361 u32 reserved1;
362 u32 phys;
363 u32 reserved2;
364 u32 reserved3;
365 u32 reserved4;
366 u32 cntrl;
367 u32 status;
368 u32 app0;
369 u32 app1; /* TX start << 16 | insert */
370 u32 app2; /* TX csum seed */
371 u32 app3;
372 u32 app4;
373 u32 sw_id_offset;
374 u32 reserved5;
375 u32 reserved6;
376};
377
378/**
379 * struct axienet_local - axienet private per device data
380 * @ndev: Pointer for net_device to which it will be attached.
381 * @dev: Pointer to device structure
382 * @phy_dev: Pointer to PHY device structure attached to the axienet_local
383 * @phy_node: Pointer to device node structure
384 * @mii_bus: Pointer to MII bus structure
385 * @mdio_irqs: IRQs table for MDIO bus required in mii_bus structure
386 * @regs: Base address for the axienet_local device address space
387 * @dma_regs: Base address for the axidma device address space
388 * @dma_err_tasklet: Tasklet structure to process Axi DMA errors
389 * @tx_irq: Axidma TX IRQ number
390 * @rx_irq: Axidma RX IRQ number
391 * @temac_type: axienet type to identify between soft and hard temac
392 * @phy_type: Phy type to identify between MII/GMII/RGMII/SGMII/1000 Base-X
393 * @options: AxiEthernet option word
394 * @last_link: Phy link state in which the PHY was negotiated earlier
395 * @features: Stores the extended features supported by the axienet hw
396 * @tx_bd_v: Virtual address of the TX buffer descriptor ring
397 * @tx_bd_p: Physical address(start address) of the TX buffer descr. ring
398 * @rx_bd_v: Virtual address of the RX buffer descriptor ring
399 * @rx_bd_p: Physical address(start address) of the RX buffer descr. ring
400 * @tx_bd_ci: Stores the index of the Tx buffer descriptor in the ring being
401 * accessed currently. Used while alloc. BDs before a TX starts
402 * @tx_bd_tail: Stores the index of the Tx buffer descriptor in the ring being
403 * accessed currently. Used while processing BDs after the TX
404 * completed.
405 * @rx_bd_ci: Stores the index of the Rx buffer descriptor in the ring being
406 * accessed currently.
407 * @max_frm_size: Stores the maximum size of the frame that can be that
408 * Txed/Rxed in the existing hardware. If jumbo option is
409 * supported, the maximum frame size would be 9k. Else it is
410 * 1522 bytes (assuming support for basic VLAN)
411 * @jumbo_support: Stores hardware configuration for jumbo support. If hardware
412 * can handle jumbo packets, this entry will be 1, else 0.
413 */
414struct axienet_local {
415 struct net_device *ndev;
416 struct device *dev;
417
418 /* Connection to PHY device */
419 struct phy_device *phy_dev; /* Pointer to PHY device */
420 struct device_node *phy_node;
421
422 /* MDIO bus data */
423 struct mii_bus *mii_bus; /* MII bus reference */
424 int mdio_irqs[PHY_MAX_ADDR]; /* IRQs table for MDIO bus */
425
426 /* IO registers, dma functions and IRQs */
427 void __iomem *regs;
428 void __iomem *dma_regs;
429
430 struct tasklet_struct dma_err_tasklet;
431
432 int tx_irq;
433 int rx_irq;
434 u32 temac_type;
435 u32 phy_type;
436
437 u32 options; /* Current options word */
438 u32 last_link;
439 u32 features;
440
441 /* Buffer descriptors */
442 struct axidma_bd *tx_bd_v;
443 dma_addr_t tx_bd_p;
444 struct axidma_bd *rx_bd_v;
445 dma_addr_t rx_bd_p;
446 u32 tx_bd_ci;
447 u32 tx_bd_tail;
448 u32 rx_bd_ci;
449
450 u32 max_frm_size;
451 u32 jumbo_support;
452
453 int csum_offload_on_tx_path;
454 int csum_offload_on_rx_path;
455
456 u32 coalesce_count_rx;
457 u32 coalesce_count_tx;
458};
459
460/**
461 * struct axiethernet_option - Used to set axi ethernet hardware options
462 * @opt: Option to be set.
463 * @reg: Register offset to be written for setting the option
464 * @m_or: Mask to be ORed for setting the option in the register
465 */
466struct axienet_option {
467 u32 opt;
468 u32 reg;
469 u32 m_or;
470};
471
472/**
473 * axienet_ior - Memory mapped Axi Ethernet register read
474 * @lp: Pointer to axienet local structure
475 * @offset: Address offset from the base address of Axi Ethernet core
476 *
477 * returns: The contents of the Axi Ethernet register
478 *
479 * This function returns the contents of the corresponding register.
480 */
481static inline u32 axienet_ior(struct axienet_local *lp, off_t offset)
482{
483 return in_be32(lp->regs + offset);
484}
485
486/**
487 * axienet_iow - Memory mapped Axi Ethernet register write
488 * @lp: Pointer to axienet local structure
489 * @offset: Address offset from the base address of Axi Ethernet core
490 * @value: Value to be written into the Axi Ethernet register
491 *
492 * This function writes the desired value into the corresponding Axi Ethernet
493 * register.
494 */
495static inline void axienet_iow(struct axienet_local *lp, off_t offset,
496 u32 value)
497{
498 out_be32((lp->regs + offset), value);
499}
500
501/* Function prototypes visible in xilinx_axienet_mdio.c for other files */
502int axienet_mdio_setup(struct axienet_local *lp, struct device_node *np);
503int axienet_mdio_wait_until_ready(struct axienet_local *lp);
504void axienet_mdio_teardown(struct axienet_local *lp);
505
506#endif /* XILINX_AXI_ENET_H */