1 /* 10G controller driver for Samsung SoCs
3 * Copyright (C) 2013 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com
6 * Author: Siva Reddy Kallam <siva.kallam@samsung.com>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 #ifndef __SXGBE_COMMON_H__
14 #define __SXGBE_COMMON_H__
16 /* forward references */
17 struct sxgbe_desc_ops;
21 #define SXGBE_RESOURCE_NAME "sam_sxgbeeth"
22 #define DRV_MODULE_VERSION "November_2013"
24 /* MAX HW feature words */
25 #define SXGBE_HW_WORDS 3
27 #define SXGBE_RX_COE_NONE 0
29 /* CSR Frequency Access Defines*/
30 #define SXGBE_CSR_F_150M 150000000
31 #define SXGBE_CSR_F_250M 250000000
32 #define SXGBE_CSR_F_300M 300000000
33 #define SXGBE_CSR_F_350M 350000000
34 #define SXGBE_CSR_F_400M 400000000
35 #define SXGBE_CSR_F_500M 500000000
38 #define SXGBE_PAUSE_TIME 0x200
41 #define SXGBE_TX_QUEUES 8
42 #define SXGBE_RX_QUEUES 16
44 /* Calculated based how much time does it take to fill 256KB Rx memory
45 * at 10Gb speed at 156MHz clock rate and considered little less then
48 #define SXGBE_MAX_DMA_RIWT 0x70
49 #define SXGBE_MIN_DMA_RIWT 0x01
51 /* Tx coalesce parameters */
52 #define SXGBE_COAL_TX_TIMER 40000
53 #define SXGBE_MAX_COAL_TX_TICK 100000
54 #define SXGBE_TX_MAX_FRAMES 512
55 #define SXGBE_TX_FRAMES 128
57 /* SXGBE TX FIFO is 8K, Rx FIFO is 16K */
58 #define BUF_SIZE_16KiB 16384
59 #define BUF_SIZE_8KiB 8192
60 #define BUF_SIZE_4KiB 4096
61 #define BUF_SIZE_2KiB 2048
63 #define SXGBE_DEFAULT_LIT_LS 0x3E8
64 #define SXGBE_DEFAULT_TWT_LS 0x0
66 /* Flow Control defines */
67 #define SXGBE_FLOW_OFF 0
68 #define SXGBE_FLOW_RX 1
69 #define SXGBE_FLOW_TX 2
70 #define SXGBE_FLOW_AUTO (SXGBE_FLOW_TX | SXGBE_FLOW_RX)
72 #define SF_DMA_MODE 1 /* DMA STORE-AND-FORWARD Operation Mode */
75 #define RX_GMII_ERR 0x01
76 #define RX_WATCHDOG_ERR 0x02
77 #define RX_CRC_ERR 0x03
78 #define RX_GAINT_ERR 0x04
79 #define RX_IP_HDR_ERR 0x05
80 #define RX_PAYLOAD_ERR 0x06
81 #define RX_OVERFLOW_ERR 0x07
84 #define RX_LEN_PKT 0x00
85 #define RX_MACCTL_PKT 0x01
86 #define RX_DCBCTL_PKT 0x02
87 #define RX_ARP_PKT 0x03
88 #define RX_OAM_PKT 0x04
89 #define RX_UNTAG_PKT 0x05
90 #define RX_OTHER_PKT 0x07
91 #define RX_SVLAN_PKT 0x08
92 #define RX_CVLAN_PKT 0x09
93 #define RX_DVLAN_OCVLAN_ICVLAN_PKT 0x0A
94 #define RX_DVLAN_OSVLAN_ISVLAN_PKT 0x0B
95 #define RX_DVLAN_OSVLAN_ICVLAN_PKT 0x0C
96 #define RX_DVLAN_OCVLAN_ISVLAN_PKT 0x0D
98 #define RX_NOT_IP_PKT 0x00
99 #define RX_IPV4_TCP_PKT 0x01
100 #define RX_IPV4_UDP_PKT 0x02
101 #define RX_IPV4_ICMP_PKT 0x03
102 #define RX_IPV4_UNKNOWN_PKT 0x07
103 #define RX_IPV6_TCP_PKT 0x09
104 #define RX_IPV6_UDP_PKT 0x0A
105 #define RX_IPV6_ICMP_PKT 0x0B
106 #define RX_IPV6_UNKNOWN_PKT 0x0F
108 #define RX_NO_PTP 0x00
109 #define RX_PTP_SYNC 0x01
110 #define RX_PTP_FOLLOW_UP 0x02
111 #define RX_PTP_DELAY_REQ 0x03
112 #define RX_PTP_DELAY_RESP 0x04
113 #define RX_PTP_PDELAY_REQ 0x05
114 #define RX_PTP_PDELAY_RESP 0x06
115 #define RX_PTP_PDELAY_FOLLOW_UP 0x07
116 #define RX_PTP_ANNOUNCE 0x08
117 #define RX_PTP_MGMT 0x09
118 #define RX_PTP_SIGNAL 0x0A
119 #define RX_PTP_RESV_MSG 0x0F
121 /* EEE-LPI mode flags*/
122 #define TX_ENTRY_LPI_MODE 0x10
123 #define TX_EXIT_LPI_MODE 0x20
124 #define RX_ENTRY_LPI_MODE 0x40
125 #define RX_EXIT_LPI_MODE 0x80
127 /* EEE-LPI Interrupt status flag */
128 #define LPI_INT_STATUS BIT(5)
130 /* EEE-LPI Default timer values */
131 #define LPI_LINK_STATUS_TIMER 0x3E8
132 #define LPI_MAC_WAIT_TIMER 0x00
134 /* EEE-LPI Control and status definitions */
135 #define LPI_CTRL_STATUS_TXA BIT(19)
136 #define LPI_CTRL_STATUS_PLSDIS BIT(18)
137 #define LPI_CTRL_STATUS_PLS BIT(17)
138 #define LPI_CTRL_STATUS_LPIEN BIT(16)
139 #define LPI_CTRL_STATUS_TXRSTP BIT(11)
140 #define LPI_CTRL_STATUS_RXRSTP BIT(10)
141 #define LPI_CTRL_STATUS_RLPIST BIT(9)
142 #define LPI_CTRL_STATUS_TLPIST BIT(8)
143 #define LPI_CTRL_STATUS_RLPIEX BIT(3)
144 #define LPI_CTRL_STATUS_RLPIEN BIT(2)
145 #define LPI_CTRL_STATUS_TLPIEX BIT(1)
146 #define LPI_CTRL_STATUS_TLPIEN BIT(0)
148 enum dma_irq_status {
149 tx_hard_error = BIT(0),
152 rx_hard_error = BIT(3),
157 #define NETIF_F_HW_VLAN_ALL (NETIF_F_HW_VLAN_CTAG_RX | \
158 NETIF_F_HW_VLAN_STAG_RX | \
159 NETIF_F_HW_VLAN_CTAG_TX | \
160 NETIF_F_HW_VLAN_STAG_TX | \
161 NETIF_F_HW_VLAN_CTAG_FILTER | \
162 NETIF_F_HW_VLAN_STAG_FILTER)
164 /* MMC control defines */
165 #define SXGBE_MMC_CTRL_CNT_FRZ 0x00000008
167 /* SXGBE HW ADDR regs */
168 #define SXGBE_ADDR_HIGH(reg) (((reg > 15) ? 0x00000800 : 0x00000040) + \
170 #define SXGBE_ADDR_LOW(reg) (((reg > 15) ? 0x00000804 : 0x00000044) + \
172 #define SXGBE_MAX_PERFECT_ADDRESSES 32 /* Maximum unicast perfect filtering */
173 #define SXGBE_FRAME_FILTER 0x00000004 /* Frame Filter */
175 /* SXGBE Frame Filter defines */
176 #define SXGBE_FRAME_FILTER_PR 0x00000001 /* Promiscuous Mode */
177 #define SXGBE_FRAME_FILTER_HUC 0x00000002 /* Hash Unicast */
178 #define SXGBE_FRAME_FILTER_HMC 0x00000004 /* Hash Multicast */
179 #define SXGBE_FRAME_FILTER_DAIF 0x00000008 /* DA Inverse Filtering */
180 #define SXGBE_FRAME_FILTER_PM 0x00000010 /* Pass all multicast */
181 #define SXGBE_FRAME_FILTER_DBF 0x00000020 /* Disable Broadcast frames */
182 #define SXGBE_FRAME_FILTER_SAIF 0x00000100 /* Inverse Filtering */
183 #define SXGBE_FRAME_FILTER_SAF 0x00000200 /* Source Address Filter */
184 #define SXGBE_FRAME_FILTER_HPF 0x00000400 /* Hash or perfect Filter */
185 #define SXGBE_FRAME_FILTER_RA 0x80000000 /* Receive all mode */
187 #define SXGBE_HASH_TABLE_SIZE 64
188 #define SXGBE_HASH_HIGH 0x00000008 /* Multicast Hash Table High */
189 #define SXGBE_HASH_LOW 0x0000000c /* Multicast Hash Table Low */
191 #define SXGBE_HI_REG_AE 0x80000000
193 /* Minimum and maximum MTU */
197 #define SXGBE_FOR_EACH_QUEUE(max_queues, queue_num) \
198 for (queue_num = 0; queue_num < max_queues; queue_num++)
200 #define DRV_VERSION "1.0.0"
202 #define SXGBE_MAX_RX_CHANNELS 16
203 #define SXGBE_MAX_TX_CHANNELS 16
205 #define START_MAC_REG_OFFSET 0x0000
206 #define MAX_MAC_REG_OFFSET 0x0DFC
207 #define START_MTL_REG_OFFSET 0x1000
208 #define MAX_MTL_REG_OFFSET 0x18FC
209 #define START_DMA_REG_OFFSET 0x3000
210 #define MAX_DMA_REG_OFFSET 0x38FC
212 #define REG_SPACE_SIZE 0x2000
214 /* sxgbe statistics counters */
215 struct sxgbe_extra_stats {
216 /* TX/RX IRQ events */
217 unsigned long tx_underflow_irq;
218 unsigned long tx_process_stopped_irq;
219 unsigned long tx_ctxt_desc_err;
220 unsigned long tx_threshold;
221 unsigned long rx_threshold;
222 unsigned long tx_pkt_n;
223 unsigned long rx_pkt_n;
224 unsigned long normal_irq_n;
225 unsigned long tx_normal_irq_n;
226 unsigned long rx_normal_irq_n;
227 unsigned long napi_poll;
228 unsigned long tx_clean;
229 unsigned long tx_reset_ic_bit;
230 unsigned long rx_process_stopped_irq;
231 unsigned long rx_underflow_irq;
233 /* Bus access errors */
234 unsigned long fatal_bus_error_irq;
235 unsigned long tx_read_transfer_err;
236 unsigned long tx_write_transfer_err;
237 unsigned long tx_desc_access_err;
238 unsigned long tx_buffer_access_err;
239 unsigned long tx_data_transfer_err;
240 unsigned long rx_read_transfer_err;
241 unsigned long rx_write_transfer_err;
242 unsigned long rx_desc_access_err;
243 unsigned long rx_buffer_access_err;
244 unsigned long rx_data_transfer_err;
247 unsigned long tx_lpi_entry_n;
248 unsigned long tx_lpi_exit_n;
249 unsigned long rx_lpi_entry_n;
250 unsigned long rx_lpi_exit_n;
251 unsigned long eee_wakeup_error_n;
255 unsigned long rx_code_gmii_err;
256 unsigned long rx_watchdog_err;
257 unsigned long rx_crc_err;
258 unsigned long rx_gaint_pkt_err;
259 unsigned long ip_hdr_err;
260 unsigned long ip_payload_err;
261 unsigned long overflow_error;
264 unsigned long len_pkt;
265 unsigned long mac_ctl_pkt;
266 unsigned long dcb_ctl_pkt;
267 unsigned long arp_pkt;
268 unsigned long oam_pkt;
269 unsigned long untag_okt;
270 unsigned long other_pkt;
271 unsigned long svlan_tag_pkt;
272 unsigned long cvlan_tag_pkt;
273 unsigned long dvlan_ocvlan_icvlan_pkt;
274 unsigned long dvlan_osvlan_isvlan_pkt;
275 unsigned long dvlan_osvlan_icvlan_pkt;
276 unsigned long dvan_ocvlan_icvlan_pkt;
279 unsigned long not_ip_pkt;
280 unsigned long ip4_tcp_pkt;
281 unsigned long ip4_udp_pkt;
282 unsigned long ip4_icmp_pkt;
283 unsigned long ip4_unknown_pkt;
284 unsigned long ip6_tcp_pkt;
285 unsigned long ip6_udp_pkt;
286 unsigned long ip6_icmp_pkt;
287 unsigned long ip6_unknown_pkt;
289 /* Filter specific */
290 unsigned long vlan_filter_match;
291 unsigned long sa_filter_fail;
292 unsigned long da_filter_fail;
293 unsigned long hash_filter_pass;
294 unsigned long l3_filter_match;
295 unsigned long l4_filter_match;
297 /* RX context specific */
298 unsigned long timestamp_dropped;
299 unsigned long rx_msg_type_no_ptp;
300 unsigned long rx_ptp_type_sync;
301 unsigned long rx_ptp_type_follow_up;
302 unsigned long rx_ptp_type_delay_req;
303 unsigned long rx_ptp_type_delay_resp;
304 unsigned long rx_ptp_type_pdelay_req;
305 unsigned long rx_ptp_type_pdelay_resp;
306 unsigned long rx_ptp_type_pdelay_follow_up;
307 unsigned long rx_ptp_announce;
308 unsigned long rx_ptp_mgmt;
309 unsigned long rx_ptp_signal;
310 unsigned long rx_ptp_resv_msg_type;
320 unsigned int addr; /* MII Address */
321 unsigned int data; /* MII Data */
324 struct sxgbe_core_ops {
325 /* MAC core initialization */
326 void (*core_init)(void __iomem *ioaddr);
327 /* Dump MAC registers */
328 void (*dump_regs)(void __iomem *ioaddr);
329 /* Handle extra events on specific interrupts hw dependent */
330 int (*host_irq_status)(void __iomem *ioaddr,
331 struct sxgbe_extra_stats *x);
332 /* Set power management mode (e.g. magic frame) */
333 void (*pmt)(void __iomem *ioaddr, unsigned long mode);
334 /* Set/Get Unicast MAC addresses */
335 void (*set_umac_addr)(void __iomem *ioaddr, unsigned char *addr,
337 void (*get_umac_addr)(void __iomem *ioaddr, unsigned char *addr,
339 void (*enable_rx)(void __iomem *ioaddr, bool enable);
340 void (*enable_tx)(void __iomem *ioaddr, bool enable);
342 /* controller version specific operations */
343 int (*get_controller_version)(void __iomem *ioaddr);
345 /* If supported then get the optional core features */
346 unsigned int (*get_hw_feature)(void __iomem *ioaddr,
347 unsigned char feature_index);
348 /* adjust SXGBE speed */
349 void (*set_speed)(void __iomem *ioaddr, unsigned char speed);
351 /* EEE-LPI specific operations */
352 void (*set_eee_mode)(void __iomem *ioaddr);
353 void (*reset_eee_mode)(void __iomem *ioaddr);
354 void (*set_eee_timer)(void __iomem *ioaddr, const int ls,
356 void (*set_eee_pls)(void __iomem *ioaddr, const int link);
358 /* Enable disable checksum offload operations */
359 void (*enable_rx_csum)(void __iomem *ioaddr);
360 void (*disable_rx_csum)(void __iomem *ioaddr);
361 void (*enable_rxqueue)(void __iomem *ioaddr, int queue_num);
362 void (*disable_rxqueue)(void __iomem *ioaddr, int queue_num);
365 const struct sxgbe_core_ops *sxgbe_get_core_ops(void);
368 const struct sxgbe_core_ops *mac;
369 const struct sxgbe_desc_ops *desc;
370 const struct sxgbe_dma_ops *dma;
371 const struct sxgbe_mtl_ops *mtl;
372 struct mii_regs mii; /* MII register Addresses */
373 struct mac_link link;
374 unsigned int ctrl_uid;
375 unsigned int ctrl_id;
378 /* SXGBE private data structures */
379 struct sxgbe_tx_queue {
381 struct sxgbe_priv_data *priv_ptr;
382 struct sxgbe_tx_norm_desc *dma_tx;
383 dma_addr_t dma_tx_phy;
384 dma_addr_t *tx_skbuff_dma;
385 struct sk_buff **tx_skbuff;
386 struct timer_list txtimer;
387 spinlock_t tx_lock; /* lock for tx queues */
389 unsigned int dirty_tx;
398 struct sxgbe_rx_queue {
399 struct sxgbe_priv_data *priv_ptr;
400 struct sxgbe_rx_norm_desc *dma_rx;
401 struct sk_buff **rx_skbuff;
403 unsigned int dirty_rx;
406 dma_addr_t *rx_skbuff_dma;
407 dma_addr_t dma_rx_phy;
411 /* SXGBE HW capabilities */
412 struct sxgbe_hw_features {
413 /****** CAP [0] *******/
414 unsigned int pmt_remote_wake_up;
415 unsigned int pmt_magic_frame;
417 unsigned int atime_stamp;
421 unsigned int tx_csum_offload;
422 unsigned int rx_csum_offload;
423 unsigned int multi_macaddr;
424 unsigned int tstamp_srcselect;
425 unsigned int sa_vlan_insert;
427 /****** CAP [1] *******/
428 unsigned int rxfifo_size;
429 unsigned int txfifo_size;
430 unsigned int atstmap_hword;
431 unsigned int dcb_enable;
432 unsigned int splithead_enable;
433 unsigned int tcpseg_offload;
434 unsigned int debug_mem;
435 unsigned int rss_enable;
436 unsigned int hash_tsize;
437 unsigned int l3l4_filer_size;
439 /* This value is in bytes and
440 * as mentioned in HW features
443 unsigned int rx_mtl_qsize;
444 unsigned int tx_mtl_qsize;
446 /****** CAP [2] *******/
447 /* TX and RX number of channels */
448 unsigned int rx_mtl_queues;
449 unsigned int tx_mtl_queues;
450 unsigned int rx_dma_channels;
451 unsigned int tx_dma_channels;
452 unsigned int pps_output_count;
453 unsigned int aux_input_count;
456 struct sxgbe_priv_data {
458 struct sxgbe_tx_queue *txq[SXGBE_TX_QUEUES];
459 struct sxgbe_rx_queue *rxq[SXGBE_RX_QUEUES];
462 unsigned int dma_tx_size;
463 unsigned int dma_rx_size;
464 unsigned int dma_buf_sz;
467 struct napi_struct napi;
469 void __iomem *ioaddr;
470 struct net_device *dev;
471 struct device *device;
472 struct sxgbe_ops *hw; /* sxgbe specific ops */
473 int no_csum_insertion;
475 int rxcsum_insertion;
476 spinlock_t stats_lock; /* lock for tx/rx statatics */
482 int mii_irq[PHY_MAX_ADDR];
486 struct sxgbe_extra_stats xstats;
487 struct sxgbe_plat_data *plat;
488 struct sxgbe_hw_features hw_cap;
492 struct clk *sxgbe_clk;
495 unsigned int default_addend;
497 /* advanced time stamp support */
500 struct ptp_clock *ptp_clock;
505 /* EEE-LPI specific members */
506 struct timer_list eee_ctrl_timer;
507 bool tx_path_in_lpi_mode;
514 /* Function prototypes */
515 struct sxgbe_priv_data *sxgbe_drv_probe(struct device *device,
516 struct sxgbe_plat_data *plat_dat,
518 int sxgbe_drv_remove(struct net_device *ndev);
519 void sxgbe_set_ethtool_ops(struct net_device *netdev);
520 int sxgbe_mdio_unregister(struct net_device *ndev);
521 int sxgbe_mdio_register(struct net_device *ndev);
522 int sxgbe_register_platform(void);
523 void sxgbe_unregister_platform(void);
526 int sxgbe_suspend(struct net_device *ndev);
527 int sxgbe_resume(struct net_device *ndev);
528 int sxgbe_freeze(struct net_device *ndev);
529 int sxgbe_restore(struct net_device *ndev);
530 #endif /* CONFIG_PM */
532 const struct sxgbe_mtl_ops *sxgbe_get_mtl_ops(void);
534 void sxgbe_disable_eee_mode(struct sxgbe_priv_data * const priv);
535 bool sxgbe_eee_init(struct sxgbe_priv_data * const priv);
536 #endif /* __SXGBE_COMMON_H__ */