1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * Copyright (c) 2016 Linaro Ltd.
4  * Copyright (c) 2016 Hisilicon Limited.
5  */
6 
7 #include "hisi_sas.h"
8 #define DRV_NAME "hisi_sas_v2_hw"
9 
10 /* global registers need init*/
11 #define DLVRY_QUEUE_ENABLE		0x0
12 #define IOST_BASE_ADDR_LO		0x8
13 #define IOST_BASE_ADDR_HI		0xc
14 #define ITCT_BASE_ADDR_LO		0x10
15 #define ITCT_BASE_ADDR_HI		0x14
16 #define IO_BROKEN_MSG_ADDR_LO		0x18
17 #define IO_BROKEN_MSG_ADDR_HI		0x1c
18 #define PHY_CONTEXT			0x20
19 #define PHY_STATE			0x24
20 #define PHY_PORT_NUM_MA			0x28
21 #define PORT_STATE			0x2c
22 #define PORT_STATE_PHY8_PORT_NUM_OFF	16
23 #define PORT_STATE_PHY8_PORT_NUM_MSK	(0xf << PORT_STATE_PHY8_PORT_NUM_OFF)
24 #define PORT_STATE_PHY8_CONN_RATE_OFF	20
25 #define PORT_STATE_PHY8_CONN_RATE_MSK	(0xf << PORT_STATE_PHY8_CONN_RATE_OFF)
26 #define PHY_CONN_RATE			0x30
27 #define HGC_TRANS_TASK_CNT_LIMIT	0x38
28 #define AXI_AHB_CLK_CFG			0x3c
29 #define ITCT_CLR			0x44
30 #define ITCT_CLR_EN_OFF			16
31 #define ITCT_CLR_EN_MSK			(0x1 << ITCT_CLR_EN_OFF)
32 #define ITCT_DEV_OFF			0
33 #define ITCT_DEV_MSK			(0x7ff << ITCT_DEV_OFF)
34 #define AXI_USER1			0x48
35 #define AXI_USER2			0x4c
36 #define IO_SATA_BROKEN_MSG_ADDR_LO	0x58
37 #define IO_SATA_BROKEN_MSG_ADDR_HI	0x5c
38 #define SATA_INITI_D2H_STORE_ADDR_LO	0x60
39 #define SATA_INITI_D2H_STORE_ADDR_HI	0x64
40 #define HGC_SAS_TX_OPEN_FAIL_RETRY_CTRL	0x84
41 #define HGC_SAS_TXFAIL_RETRY_CTRL	0x88
42 #define HGC_GET_ITV_TIME		0x90
43 #define DEVICE_MSG_WORK_MODE		0x94
44 #define OPENA_WT_CONTI_TIME		0x9c
45 #define I_T_NEXUS_LOSS_TIME		0xa0
46 #define MAX_CON_TIME_LIMIT_TIME		0xa4
47 #define BUS_INACTIVE_LIMIT_TIME		0xa8
48 #define REJECT_TO_OPEN_LIMIT_TIME	0xac
49 #define CFG_AGING_TIME			0xbc
50 #define HGC_DFX_CFG2			0xc0
51 #define HGC_IOMB_PROC1_STATUS	0x104
52 #define CFG_1US_TIMER_TRSH		0xcc
53 #define HGC_LM_DFX_STATUS2		0x128
54 #define HGC_LM_DFX_STATUS2_IOSTLIST_OFF		0
55 #define HGC_LM_DFX_STATUS2_IOSTLIST_MSK	(0xfff << \
56 					 HGC_LM_DFX_STATUS2_IOSTLIST_OFF)
57 #define HGC_LM_DFX_STATUS2_ITCTLIST_OFF		12
58 #define HGC_LM_DFX_STATUS2_ITCTLIST_MSK	(0x7ff << \
59 					 HGC_LM_DFX_STATUS2_ITCTLIST_OFF)
60 #define HGC_CQE_ECC_ADDR		0x13c
61 #define HGC_CQE_ECC_1B_ADDR_OFF	0
62 #define HGC_CQE_ECC_1B_ADDR_MSK	(0x3f << HGC_CQE_ECC_1B_ADDR_OFF)
63 #define HGC_CQE_ECC_MB_ADDR_OFF	8
64 #define HGC_CQE_ECC_MB_ADDR_MSK (0x3f << HGC_CQE_ECC_MB_ADDR_OFF)
65 #define HGC_IOST_ECC_ADDR		0x140
66 #define HGC_IOST_ECC_1B_ADDR_OFF	0
67 #define HGC_IOST_ECC_1B_ADDR_MSK	(0x3ff << HGC_IOST_ECC_1B_ADDR_OFF)
68 #define HGC_IOST_ECC_MB_ADDR_OFF	16
69 #define HGC_IOST_ECC_MB_ADDR_MSK	(0x3ff << HGC_IOST_ECC_MB_ADDR_OFF)
70 #define HGC_DQE_ECC_ADDR		0x144
71 #define HGC_DQE_ECC_1B_ADDR_OFF	0
72 #define HGC_DQE_ECC_1B_ADDR_MSK	(0xfff << HGC_DQE_ECC_1B_ADDR_OFF)
73 #define HGC_DQE_ECC_MB_ADDR_OFF	16
74 #define HGC_DQE_ECC_MB_ADDR_MSK (0xfff << HGC_DQE_ECC_MB_ADDR_OFF)
75 #define HGC_INVLD_DQE_INFO		0x148
76 #define HGC_INVLD_DQE_INFO_FB_CH0_OFF	9
77 #define HGC_INVLD_DQE_INFO_FB_CH0_MSK	(0x1 << HGC_INVLD_DQE_INFO_FB_CH0_OFF)
78 #define HGC_INVLD_DQE_INFO_FB_CH3_OFF	18
79 #define HGC_ITCT_ECC_ADDR		0x150
80 #define HGC_ITCT_ECC_1B_ADDR_OFF		0
81 #define HGC_ITCT_ECC_1B_ADDR_MSK		(0x3ff << \
82 						 HGC_ITCT_ECC_1B_ADDR_OFF)
83 #define HGC_ITCT_ECC_MB_ADDR_OFF		16
84 #define HGC_ITCT_ECC_MB_ADDR_MSK		(0x3ff << \
85 						 HGC_ITCT_ECC_MB_ADDR_OFF)
86 #define HGC_AXI_FIFO_ERR_INFO	0x154
87 #define AXI_ERR_INFO_OFF		0
88 #define AXI_ERR_INFO_MSK		(0xff << AXI_ERR_INFO_OFF)
89 #define FIFO_ERR_INFO_OFF		8
90 #define FIFO_ERR_INFO_MSK		(0xff << FIFO_ERR_INFO_OFF)
91 #define INT_COAL_EN			0x19c
92 #define OQ_INT_COAL_TIME		0x1a0
93 #define OQ_INT_COAL_CNT			0x1a4
94 #define ENT_INT_COAL_TIME		0x1a8
95 #define ENT_INT_COAL_CNT		0x1ac
96 #define OQ_INT_SRC			0x1b0
97 #define OQ_INT_SRC_MSK			0x1b4
98 #define ENT_INT_SRC1			0x1b8
99 #define ENT_INT_SRC1_D2H_FIS_CH0_OFF	0
100 #define ENT_INT_SRC1_D2H_FIS_CH0_MSK	(0x1 << ENT_INT_SRC1_D2H_FIS_CH0_OFF)
101 #define ENT_INT_SRC1_D2H_FIS_CH1_OFF	8
102 #define ENT_INT_SRC1_D2H_FIS_CH1_MSK	(0x1 << ENT_INT_SRC1_D2H_FIS_CH1_OFF)
103 #define ENT_INT_SRC2			0x1bc
104 #define ENT_INT_SRC3			0x1c0
105 #define ENT_INT_SRC3_WP_DEPTH_OFF		8
106 #define ENT_INT_SRC3_IPTT_SLOT_NOMATCH_OFF	9
107 #define ENT_INT_SRC3_RP_DEPTH_OFF		10
108 #define ENT_INT_SRC3_AXI_OFF			11
109 #define ENT_INT_SRC3_FIFO_OFF			12
110 #define ENT_INT_SRC3_LM_OFF				14
111 #define ENT_INT_SRC3_ITC_INT_OFF	15
112 #define ENT_INT_SRC3_ITC_INT_MSK	(0x1 << ENT_INT_SRC3_ITC_INT_OFF)
113 #define ENT_INT_SRC3_ABT_OFF		16
114 #define ENT_INT_SRC_MSK1		0x1c4
115 #define ENT_INT_SRC_MSK2		0x1c8
116 #define ENT_INT_SRC_MSK3		0x1cc
117 #define ENT_INT_SRC_MSK3_ENT95_MSK_OFF	31
118 #define ENT_INT_SRC_MSK3_ENT95_MSK_MSK	(0x1 << ENT_INT_SRC_MSK3_ENT95_MSK_OFF)
119 #define SAS_ECC_INTR			0x1e8
120 #define SAS_ECC_INTR_DQE_ECC_1B_OFF		0
121 #define SAS_ECC_INTR_DQE_ECC_MB_OFF		1
122 #define SAS_ECC_INTR_IOST_ECC_1B_OFF	2
123 #define SAS_ECC_INTR_IOST_ECC_MB_OFF	3
124 #define SAS_ECC_INTR_ITCT_ECC_MB_OFF	4
125 #define SAS_ECC_INTR_ITCT_ECC_1B_OFF	5
126 #define SAS_ECC_INTR_IOSTLIST_ECC_MB_OFF	6
127 #define SAS_ECC_INTR_IOSTLIST_ECC_1B_OFF	7
128 #define SAS_ECC_INTR_ITCTLIST_ECC_1B_OFF	8
129 #define SAS_ECC_INTR_ITCTLIST_ECC_MB_OFF	9
130 #define SAS_ECC_INTR_CQE_ECC_1B_OFF		10
131 #define SAS_ECC_INTR_CQE_ECC_MB_OFF		11
132 #define SAS_ECC_INTR_NCQ_MEM0_ECC_MB_OFF	12
133 #define SAS_ECC_INTR_NCQ_MEM0_ECC_1B_OFF	13
134 #define SAS_ECC_INTR_NCQ_MEM1_ECC_MB_OFF	14
135 #define SAS_ECC_INTR_NCQ_MEM1_ECC_1B_OFF	15
136 #define SAS_ECC_INTR_NCQ_MEM2_ECC_MB_OFF	16
137 #define SAS_ECC_INTR_NCQ_MEM2_ECC_1B_OFF	17
138 #define SAS_ECC_INTR_NCQ_MEM3_ECC_MB_OFF	18
139 #define SAS_ECC_INTR_NCQ_MEM3_ECC_1B_OFF	19
140 #define SAS_ECC_INTR_MSK		0x1ec
141 #define HGC_ERR_STAT_EN			0x238
142 #define CQE_SEND_CNT			0x248
143 #define DLVRY_Q_0_BASE_ADDR_LO		0x260
144 #define DLVRY_Q_0_BASE_ADDR_HI		0x264
145 #define DLVRY_Q_0_DEPTH			0x268
146 #define DLVRY_Q_0_WR_PTR		0x26c
147 #define DLVRY_Q_0_RD_PTR		0x270
148 #define HYPER_STREAM_ID_EN_CFG		0xc80
149 #define OQ0_INT_SRC_MSK			0xc90
150 #define COMPL_Q_0_BASE_ADDR_LO		0x4e0
151 #define COMPL_Q_0_BASE_ADDR_HI		0x4e4
152 #define COMPL_Q_0_DEPTH			0x4e8
153 #define COMPL_Q_0_WR_PTR		0x4ec
154 #define COMPL_Q_0_RD_PTR		0x4f0
155 #define HGC_RXM_DFX_STATUS14	0xae8
156 #define HGC_RXM_DFX_STATUS14_MEM0_OFF		0
157 #define HGC_RXM_DFX_STATUS14_MEM0_MSK		(0x1ff << \
158 						 HGC_RXM_DFX_STATUS14_MEM0_OFF)
159 #define HGC_RXM_DFX_STATUS14_MEM1_OFF		9
160 #define HGC_RXM_DFX_STATUS14_MEM1_MSK		(0x1ff << \
161 						 HGC_RXM_DFX_STATUS14_MEM1_OFF)
162 #define HGC_RXM_DFX_STATUS14_MEM2_OFF		18
163 #define HGC_RXM_DFX_STATUS14_MEM2_MSK		(0x1ff << \
164 						 HGC_RXM_DFX_STATUS14_MEM2_OFF)
165 #define HGC_RXM_DFX_STATUS15	0xaec
166 #define HGC_RXM_DFX_STATUS15_MEM3_OFF		0
167 #define HGC_RXM_DFX_STATUS15_MEM3_MSK		(0x1ff << \
168 						 HGC_RXM_DFX_STATUS15_MEM3_OFF)
169 /* phy registers need init */
170 #define PORT_BASE			(0x2000)
171 
172 #define PHY_CFG				(PORT_BASE + 0x0)
173 #define HARD_PHY_LINKRATE		(PORT_BASE + 0x4)
174 #define PHY_CFG_ENA_OFF			0
175 #define PHY_CFG_ENA_MSK			(0x1 << PHY_CFG_ENA_OFF)
176 #define PHY_CFG_DC_OPT_OFF		2
177 #define PHY_CFG_DC_OPT_MSK		(0x1 << PHY_CFG_DC_OPT_OFF)
178 #define PROG_PHY_LINK_RATE		(PORT_BASE + 0x8)
179 #define PROG_PHY_LINK_RATE_MAX_OFF	0
180 #define PROG_PHY_LINK_RATE_MAX_MSK	(0xff << PROG_PHY_LINK_RATE_MAX_OFF)
181 #define PHY_CTRL			(PORT_BASE + 0x14)
182 #define PHY_CTRL_RESET_OFF		0
183 #define PHY_CTRL_RESET_MSK		(0x1 << PHY_CTRL_RESET_OFF)
184 #define SAS_PHY_CTRL			(PORT_BASE + 0x20)
185 #define SL_CFG				(PORT_BASE + 0x84)
186 #define PHY_PCN				(PORT_BASE + 0x44)
187 #define SL_TOUT_CFG			(PORT_BASE + 0x8c)
188 #define SL_CONTROL			(PORT_BASE + 0x94)
189 #define SL_CONTROL_NOTIFY_EN_OFF	0
190 #define SL_CONTROL_NOTIFY_EN_MSK	(0x1 << SL_CONTROL_NOTIFY_EN_OFF)
191 #define SL_CONTROL_CTA_OFF		17
192 #define SL_CONTROL_CTA_MSK		(0x1 << SL_CONTROL_CTA_OFF)
193 #define RX_PRIMS_STATUS			(PORT_BASE + 0x98)
194 #define RX_BCAST_CHG_OFF		1
195 #define RX_BCAST_CHG_MSK		(0x1 << RX_BCAST_CHG_OFF)
196 #define TX_ID_DWORD0			(PORT_BASE + 0x9c)
197 #define TX_ID_DWORD1			(PORT_BASE + 0xa0)
198 #define TX_ID_DWORD2			(PORT_BASE + 0xa4)
199 #define TX_ID_DWORD3			(PORT_BASE + 0xa8)
200 #define TX_ID_DWORD4			(PORT_BASE + 0xaC)
201 #define TX_ID_DWORD5			(PORT_BASE + 0xb0)
202 #define TX_ID_DWORD6			(PORT_BASE + 0xb4)
203 #define TXID_AUTO			(PORT_BASE + 0xb8)
204 #define TXID_AUTO_CT3_OFF		1
205 #define TXID_AUTO_CT3_MSK		(0x1 << TXID_AUTO_CT3_OFF)
206 #define TXID_AUTO_CTB_OFF		11
207 #define TXID_AUTO_CTB_MSK		(0x1 << TXID_AUTO_CTB_OFF)
208 #define TX_HARDRST_OFF			2
209 #define TX_HARDRST_MSK			(0x1 << TX_HARDRST_OFF)
210 #define RX_IDAF_DWORD0			(PORT_BASE + 0xc4)
211 #define RX_IDAF_DWORD1			(PORT_BASE + 0xc8)
212 #define RX_IDAF_DWORD2			(PORT_BASE + 0xcc)
213 #define RX_IDAF_DWORD3			(PORT_BASE + 0xd0)
214 #define RX_IDAF_DWORD4			(PORT_BASE + 0xd4)
215 #define RX_IDAF_DWORD5			(PORT_BASE + 0xd8)
216 #define RX_IDAF_DWORD6			(PORT_BASE + 0xdc)
217 #define RXOP_CHECK_CFG_H		(PORT_BASE + 0xfc)
218 #define CON_CONTROL			(PORT_BASE + 0x118)
219 #define CON_CONTROL_CFG_OPEN_ACC_STP_OFF	0
220 #define CON_CONTROL_CFG_OPEN_ACC_STP_MSK	\
221 		(0x01 << CON_CONTROL_CFG_OPEN_ACC_STP_OFF)
222 #define DONE_RECEIVED_TIME		(PORT_BASE + 0x11c)
223 #define CHL_INT0			(PORT_BASE + 0x1b4)
224 #define CHL_INT0_HOTPLUG_TOUT_OFF	0
225 #define CHL_INT0_HOTPLUG_TOUT_MSK	(0x1 << CHL_INT0_HOTPLUG_TOUT_OFF)
226 #define CHL_INT0_SL_RX_BCST_ACK_OFF	1
227 #define CHL_INT0_SL_RX_BCST_ACK_MSK	(0x1 << CHL_INT0_SL_RX_BCST_ACK_OFF)
228 #define CHL_INT0_SL_PHY_ENABLE_OFF	2
229 #define CHL_INT0_SL_PHY_ENABLE_MSK	(0x1 << CHL_INT0_SL_PHY_ENABLE_OFF)
230 #define CHL_INT0_NOT_RDY_OFF		4
231 #define CHL_INT0_NOT_RDY_MSK		(0x1 << CHL_INT0_NOT_RDY_OFF)
232 #define CHL_INT0_PHY_RDY_OFF		5
233 #define CHL_INT0_PHY_RDY_MSK		(0x1 << CHL_INT0_PHY_RDY_OFF)
234 #define CHL_INT1			(PORT_BASE + 0x1b8)
235 #define CHL_INT1_DMAC_TX_ECC_ERR_OFF	15
236 #define CHL_INT1_DMAC_TX_ECC_ERR_MSK	(0x1 << CHL_INT1_DMAC_TX_ECC_ERR_OFF)
237 #define CHL_INT1_DMAC_RX_ECC_ERR_OFF	17
238 #define CHL_INT1_DMAC_RX_ECC_ERR_MSK	(0x1 << CHL_INT1_DMAC_RX_ECC_ERR_OFF)
239 #define CHL_INT1_DMAC_TX_AXI_WR_ERR_OFF	19
240 #define CHL_INT1_DMAC_TX_AXI_RD_ERR_OFF	20
241 #define CHL_INT1_DMAC_RX_AXI_WR_ERR_OFF	21
242 #define CHL_INT1_DMAC_RX_AXI_RD_ERR_OFF	22
243 #define CHL_INT2			(PORT_BASE + 0x1bc)
244 #define CHL_INT2_SL_IDAF_TOUT_CONF_OFF	0
245 #define CHL_INT0_MSK			(PORT_BASE + 0x1c0)
246 #define CHL_INT1_MSK			(PORT_BASE + 0x1c4)
247 #define CHL_INT2_MSK			(PORT_BASE + 0x1c8)
248 #define CHL_INT_COAL_EN			(PORT_BASE + 0x1d0)
249 #define DMA_TX_DFX0				(PORT_BASE + 0x200)
250 #define DMA_TX_DFX1				(PORT_BASE + 0x204)
251 #define DMA_TX_DFX1_IPTT_OFF		0
252 #define DMA_TX_DFX1_IPTT_MSK		(0xffff << DMA_TX_DFX1_IPTT_OFF)
253 #define DMA_TX_FIFO_DFX0		(PORT_BASE + 0x240)
254 #define PORT_DFX0				(PORT_BASE + 0x258)
255 #define LINK_DFX2					(PORT_BASE + 0X264)
256 #define LINK_DFX2_RCVR_HOLD_STS_OFF	9
257 #define LINK_DFX2_RCVR_HOLD_STS_MSK	(0x1 << LINK_DFX2_RCVR_HOLD_STS_OFF)
258 #define LINK_DFX2_SEND_HOLD_STS_OFF	10
259 #define LINK_DFX2_SEND_HOLD_STS_MSK	(0x1 << LINK_DFX2_SEND_HOLD_STS_OFF)
260 #define SAS_ERR_CNT4_REG		(PORT_BASE + 0x290)
261 #define SAS_ERR_CNT6_REG		(PORT_BASE + 0x298)
262 #define PHY_CTRL_RDY_MSK		(PORT_BASE + 0x2b0)
263 #define PHYCTRL_NOT_RDY_MSK		(PORT_BASE + 0x2b4)
264 #define PHYCTRL_DWS_RESET_MSK		(PORT_BASE + 0x2b8)
265 #define PHYCTRL_PHY_ENA_MSK		(PORT_BASE + 0x2bc)
266 #define SL_RX_BCAST_CHK_MSK		(PORT_BASE + 0x2c0)
267 #define PHYCTRL_OOB_RESTART_MSK		(PORT_BASE + 0x2c4)
268 #define DMA_TX_STATUS			(PORT_BASE + 0x2d0)
269 #define DMA_TX_STATUS_BUSY_OFF		0
270 #define DMA_TX_STATUS_BUSY_MSK		(0x1 << DMA_TX_STATUS_BUSY_OFF)
271 #define DMA_RX_STATUS			(PORT_BASE + 0x2e8)
272 #define DMA_RX_STATUS_BUSY_OFF		0
273 #define DMA_RX_STATUS_BUSY_MSK		(0x1 << DMA_RX_STATUS_BUSY_OFF)
274 
275 #define AXI_CFG				(0x5100)
276 #define AM_CFG_MAX_TRANS		(0x5010)
277 #define AM_CFG_SINGLE_PORT_MAX_TRANS	(0x5014)
278 
279 #define AXI_MASTER_CFG_BASE		(0x5000)
280 #define AM_CTRL_GLOBAL			(0x0)
281 #define AM_CURR_TRANS_RETURN	(0x150)
282 
283 /* HW dma structures */
284 /* Delivery queue header */
285 /* dw0 */
286 #define CMD_HDR_ABORT_FLAG_OFF		0
287 #define CMD_HDR_ABORT_FLAG_MSK		(0x3 << CMD_HDR_ABORT_FLAG_OFF)
288 #define CMD_HDR_ABORT_DEVICE_TYPE_OFF	2
289 #define CMD_HDR_ABORT_DEVICE_TYPE_MSK	(0x1 << CMD_HDR_ABORT_DEVICE_TYPE_OFF)
290 #define CMD_HDR_RESP_REPORT_OFF		5
291 #define CMD_HDR_RESP_REPORT_MSK		(0x1 << CMD_HDR_RESP_REPORT_OFF)
292 #define CMD_HDR_TLR_CTRL_OFF		6
293 #define CMD_HDR_TLR_CTRL_MSK		(0x3 << CMD_HDR_TLR_CTRL_OFF)
294 #define CMD_HDR_PHY_ID_OFF		8
295 #define CMD_HDR_PHY_ID_MSK		(0x1ff << CMD_HDR_PHY_ID_OFF)
296 #define CMD_HDR_FORCE_PHY_OFF		17
297 #define CMD_HDR_FORCE_PHY_MSK		(0x1 << CMD_HDR_FORCE_PHY_OFF)
298 #define CMD_HDR_PORT_OFF		18
299 #define CMD_HDR_PORT_MSK		(0xf << CMD_HDR_PORT_OFF)
300 #define CMD_HDR_PRIORITY_OFF		27
301 #define CMD_HDR_PRIORITY_MSK		(0x1 << CMD_HDR_PRIORITY_OFF)
302 #define CMD_HDR_CMD_OFF			29
303 #define CMD_HDR_CMD_MSK			(0x7 << CMD_HDR_CMD_OFF)
304 /* dw1 */
305 #define CMD_HDR_DIR_OFF			5
306 #define CMD_HDR_DIR_MSK			(0x3 << CMD_HDR_DIR_OFF)
307 #define CMD_HDR_RESET_OFF		7
308 #define CMD_HDR_RESET_MSK		(0x1 << CMD_HDR_RESET_OFF)
309 #define CMD_HDR_VDTL_OFF		10
310 #define CMD_HDR_VDTL_MSK		(0x1 << CMD_HDR_VDTL_OFF)
311 #define CMD_HDR_FRAME_TYPE_OFF		11
312 #define CMD_HDR_FRAME_TYPE_MSK		(0x1f << CMD_HDR_FRAME_TYPE_OFF)
313 #define CMD_HDR_DEV_ID_OFF		16
314 #define CMD_HDR_DEV_ID_MSK		(0xffff << CMD_HDR_DEV_ID_OFF)
315 /* dw2 */
316 #define CMD_HDR_CFL_OFF			0
317 #define CMD_HDR_CFL_MSK			(0x1ff << CMD_HDR_CFL_OFF)
318 #define CMD_HDR_NCQ_TAG_OFF		10
319 #define CMD_HDR_NCQ_TAG_MSK		(0x1f << CMD_HDR_NCQ_TAG_OFF)
320 #define CMD_HDR_MRFL_OFF		15
321 #define CMD_HDR_MRFL_MSK		(0x1ff << CMD_HDR_MRFL_OFF)
322 #define CMD_HDR_SG_MOD_OFF		24
323 #define CMD_HDR_SG_MOD_MSK		(0x3 << CMD_HDR_SG_MOD_OFF)
324 #define CMD_HDR_FIRST_BURST_OFF		26
325 #define CMD_HDR_FIRST_BURST_MSK		(0x1 << CMD_HDR_SG_MOD_OFF)
326 /* dw3 */
327 #define CMD_HDR_IPTT_OFF		0
328 #define CMD_HDR_IPTT_MSK		(0xffff << CMD_HDR_IPTT_OFF)
329 /* dw6 */
330 #define CMD_HDR_DIF_SGL_LEN_OFF		0
331 #define CMD_HDR_DIF_SGL_LEN_MSK		(0xffff << CMD_HDR_DIF_SGL_LEN_OFF)
332 #define CMD_HDR_DATA_SGL_LEN_OFF	16
333 #define CMD_HDR_DATA_SGL_LEN_MSK	(0xffff << CMD_HDR_DATA_SGL_LEN_OFF)
334 #define CMD_HDR_ABORT_IPTT_OFF		16
335 #define CMD_HDR_ABORT_IPTT_MSK		(0xffff << CMD_HDR_ABORT_IPTT_OFF)
336 
337 /* Completion header */
338 /* dw0 */
339 #define CMPLT_HDR_ERR_PHASE_OFF	2
340 #define CMPLT_HDR_ERR_PHASE_MSK	(0xff << CMPLT_HDR_ERR_PHASE_OFF)
341 #define CMPLT_HDR_RSPNS_XFRD_OFF	10
342 #define CMPLT_HDR_RSPNS_XFRD_MSK	(0x1 << CMPLT_HDR_RSPNS_XFRD_OFF)
343 #define CMPLT_HDR_ERX_OFF		12
344 #define CMPLT_HDR_ERX_MSK		(0x1 << CMPLT_HDR_ERX_OFF)
345 #define CMPLT_HDR_ABORT_STAT_OFF	13
346 #define CMPLT_HDR_ABORT_STAT_MSK	(0x7 << CMPLT_HDR_ABORT_STAT_OFF)
347 /* abort_stat */
348 #define STAT_IO_NOT_VALID		0x1
349 #define STAT_IO_NO_DEVICE		0x2
350 #define STAT_IO_COMPLETE		0x3
351 #define STAT_IO_ABORTED			0x4
352 /* dw1 */
353 #define CMPLT_HDR_IPTT_OFF		0
354 #define CMPLT_HDR_IPTT_MSK		(0xffff << CMPLT_HDR_IPTT_OFF)
355 #define CMPLT_HDR_DEV_ID_OFF		16
356 #define CMPLT_HDR_DEV_ID_MSK		(0xffff << CMPLT_HDR_DEV_ID_OFF)
357 
358 /* ITCT header */
359 /* qw0 */
360 #define ITCT_HDR_DEV_TYPE_OFF		0
361 #define ITCT_HDR_DEV_TYPE_MSK		(0x3 << ITCT_HDR_DEV_TYPE_OFF)
362 #define ITCT_HDR_VALID_OFF		2
363 #define ITCT_HDR_VALID_MSK		(0x1 << ITCT_HDR_VALID_OFF)
364 #define ITCT_HDR_MCR_OFF		5
365 #define ITCT_HDR_MCR_MSK		(0xf << ITCT_HDR_MCR_OFF)
366 #define ITCT_HDR_VLN_OFF		9
367 #define ITCT_HDR_VLN_MSK		(0xf << ITCT_HDR_VLN_OFF)
368 #define ITCT_HDR_SMP_TIMEOUT_OFF	16
369 #define ITCT_HDR_SMP_TIMEOUT_8US	1
370 #define ITCT_HDR_SMP_TIMEOUT		(ITCT_HDR_SMP_TIMEOUT_8US * \
371 					 250) /* 2ms */
372 #define ITCT_HDR_AWT_CONTINUE_OFF	25
373 #define ITCT_HDR_PORT_ID_OFF		28
374 #define ITCT_HDR_PORT_ID_MSK		(0xf << ITCT_HDR_PORT_ID_OFF)
375 /* qw2 */
376 #define ITCT_HDR_INLT_OFF		0
377 #define ITCT_HDR_INLT_MSK		(0xffffULL << ITCT_HDR_INLT_OFF)
378 #define ITCT_HDR_BITLT_OFF		16
379 #define ITCT_HDR_BITLT_MSK		(0xffffULL << ITCT_HDR_BITLT_OFF)
380 #define ITCT_HDR_MCTLT_OFF		32
381 #define ITCT_HDR_MCTLT_MSK		(0xffffULL << ITCT_HDR_MCTLT_OFF)
382 #define ITCT_HDR_RTOLT_OFF		48
383 #define ITCT_HDR_RTOLT_MSK		(0xffffULL << ITCT_HDR_RTOLT_OFF)
384 
385 #define HISI_SAS_FATAL_INT_NR	2
386 
387 struct hisi_sas_complete_v2_hdr {
388 	__le32 dw0;
389 	__le32 dw1;
390 	__le32 act;
391 	__le32 dw3;
392 };
393 
394 struct hisi_sas_err_record_v2 {
395 	/* dw0 */
396 	__le32 trans_tx_fail_type;
397 
398 	/* dw1 */
399 	__le32 trans_rx_fail_type;
400 
401 	/* dw2 */
402 	__le16 dma_tx_err_type;
403 	__le16 sipc_rx_err_type;
404 
405 	/* dw3 */
406 	__le32 dma_rx_err_type;
407 };
408 
409 struct signal_attenuation_s {
410 	u32 de_emphasis;
411 	u32 preshoot;
412 	u32 boost;
413 };
414 
415 struct sig_atten_lu_s {
416 	const struct signal_attenuation_s *att;
417 	u32 sas_phy_ctrl;
418 };
419 
420 static const struct hisi_sas_hw_error one_bit_ecc_errors[] = {
421 	{
422 		.irq_msk = BIT(SAS_ECC_INTR_DQE_ECC_1B_OFF),
423 		.msk = HGC_DQE_ECC_1B_ADDR_MSK,
424 		.shift = HGC_DQE_ECC_1B_ADDR_OFF,
425 		.msg = "hgc_dqe_ecc1b_intr",
426 		.reg = HGC_DQE_ECC_ADDR,
427 	},
428 	{
429 		.irq_msk = BIT(SAS_ECC_INTR_IOST_ECC_1B_OFF),
430 		.msk = HGC_IOST_ECC_1B_ADDR_MSK,
431 		.shift = HGC_IOST_ECC_1B_ADDR_OFF,
432 		.msg = "hgc_iost_ecc1b_intr",
433 		.reg = HGC_IOST_ECC_ADDR,
434 	},
435 	{
436 		.irq_msk = BIT(SAS_ECC_INTR_ITCT_ECC_1B_OFF),
437 		.msk = HGC_ITCT_ECC_1B_ADDR_MSK,
438 		.shift = HGC_ITCT_ECC_1B_ADDR_OFF,
439 		.msg = "hgc_itct_ecc1b_intr",
440 		.reg = HGC_ITCT_ECC_ADDR,
441 	},
442 	{
443 		.irq_msk = BIT(SAS_ECC_INTR_IOSTLIST_ECC_1B_OFF),
444 		.msk = HGC_LM_DFX_STATUS2_IOSTLIST_MSK,
445 		.shift = HGC_LM_DFX_STATUS2_IOSTLIST_OFF,
446 		.msg = "hgc_iostl_ecc1b_intr",
447 		.reg = HGC_LM_DFX_STATUS2,
448 	},
449 	{
450 		.irq_msk = BIT(SAS_ECC_INTR_ITCTLIST_ECC_1B_OFF),
451 		.msk = HGC_LM_DFX_STATUS2_ITCTLIST_MSK,
452 		.shift = HGC_LM_DFX_STATUS2_ITCTLIST_OFF,
453 		.msg = "hgc_itctl_ecc1b_intr",
454 		.reg = HGC_LM_DFX_STATUS2,
455 	},
456 	{
457 		.irq_msk = BIT(SAS_ECC_INTR_CQE_ECC_1B_OFF),
458 		.msk = HGC_CQE_ECC_1B_ADDR_MSK,
459 		.shift = HGC_CQE_ECC_1B_ADDR_OFF,
460 		.msg = "hgc_cqe_ecc1b_intr",
461 		.reg = HGC_CQE_ECC_ADDR,
462 	},
463 	{
464 		.irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM0_ECC_1B_OFF),
465 		.msk = HGC_RXM_DFX_STATUS14_MEM0_MSK,
466 		.shift = HGC_RXM_DFX_STATUS14_MEM0_OFF,
467 		.msg = "rxm_mem0_ecc1b_intr",
468 		.reg = HGC_RXM_DFX_STATUS14,
469 	},
470 	{
471 		.irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM1_ECC_1B_OFF),
472 		.msk = HGC_RXM_DFX_STATUS14_MEM1_MSK,
473 		.shift = HGC_RXM_DFX_STATUS14_MEM1_OFF,
474 		.msg = "rxm_mem1_ecc1b_intr",
475 		.reg = HGC_RXM_DFX_STATUS14,
476 	},
477 	{
478 		.irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM2_ECC_1B_OFF),
479 		.msk = HGC_RXM_DFX_STATUS14_MEM2_MSK,
480 		.shift = HGC_RXM_DFX_STATUS14_MEM2_OFF,
481 		.msg = "rxm_mem2_ecc1b_intr",
482 		.reg = HGC_RXM_DFX_STATUS14,
483 	},
484 	{
485 		.irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM3_ECC_1B_OFF),
486 		.msk = HGC_RXM_DFX_STATUS15_MEM3_MSK,
487 		.shift = HGC_RXM_DFX_STATUS15_MEM3_OFF,
488 		.msg = "rxm_mem3_ecc1b_intr",
489 		.reg = HGC_RXM_DFX_STATUS15,
490 	},
491 };
492 
493 static const struct hisi_sas_hw_error multi_bit_ecc_errors[] = {
494 	{
495 		.irq_msk = BIT(SAS_ECC_INTR_DQE_ECC_MB_OFF),
496 		.msk = HGC_DQE_ECC_MB_ADDR_MSK,
497 		.shift = HGC_DQE_ECC_MB_ADDR_OFF,
498 		.msg = "hgc_dqe_eccbad_intr",
499 		.reg = HGC_DQE_ECC_ADDR,
500 	},
501 	{
502 		.irq_msk = BIT(SAS_ECC_INTR_IOST_ECC_MB_OFF),
503 		.msk = HGC_IOST_ECC_MB_ADDR_MSK,
504 		.shift = HGC_IOST_ECC_MB_ADDR_OFF,
505 		.msg = "hgc_iost_eccbad_intr",
506 		.reg = HGC_IOST_ECC_ADDR,
507 	},
508 	{
509 		.irq_msk = BIT(SAS_ECC_INTR_ITCT_ECC_MB_OFF),
510 		.msk = HGC_ITCT_ECC_MB_ADDR_MSK,
511 		.shift = HGC_ITCT_ECC_MB_ADDR_OFF,
512 		.msg = "hgc_itct_eccbad_intr",
513 		.reg = HGC_ITCT_ECC_ADDR,
514 	},
515 	{
516 		.irq_msk = BIT(SAS_ECC_INTR_IOSTLIST_ECC_MB_OFF),
517 		.msk = HGC_LM_DFX_STATUS2_IOSTLIST_MSK,
518 		.shift = HGC_LM_DFX_STATUS2_IOSTLIST_OFF,
519 		.msg = "hgc_iostl_eccbad_intr",
520 		.reg = HGC_LM_DFX_STATUS2,
521 	},
522 	{
523 		.irq_msk = BIT(SAS_ECC_INTR_ITCTLIST_ECC_MB_OFF),
524 		.msk = HGC_LM_DFX_STATUS2_ITCTLIST_MSK,
525 		.shift = HGC_LM_DFX_STATUS2_ITCTLIST_OFF,
526 		.msg = "hgc_itctl_eccbad_intr",
527 		.reg = HGC_LM_DFX_STATUS2,
528 	},
529 	{
530 		.irq_msk = BIT(SAS_ECC_INTR_CQE_ECC_MB_OFF),
531 		.msk = HGC_CQE_ECC_MB_ADDR_MSK,
532 		.shift = HGC_CQE_ECC_MB_ADDR_OFF,
533 		.msg = "hgc_cqe_eccbad_intr",
534 		.reg = HGC_CQE_ECC_ADDR,
535 	},
536 	{
537 		.irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM0_ECC_MB_OFF),
538 		.msk = HGC_RXM_DFX_STATUS14_MEM0_MSK,
539 		.shift = HGC_RXM_DFX_STATUS14_MEM0_OFF,
540 		.msg = "rxm_mem0_eccbad_intr",
541 		.reg = HGC_RXM_DFX_STATUS14,
542 	},
543 	{
544 		.irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM1_ECC_MB_OFF),
545 		.msk = HGC_RXM_DFX_STATUS14_MEM1_MSK,
546 		.shift = HGC_RXM_DFX_STATUS14_MEM1_OFF,
547 		.msg = "rxm_mem1_eccbad_intr",
548 		.reg = HGC_RXM_DFX_STATUS14,
549 	},
550 	{
551 		.irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM2_ECC_MB_OFF),
552 		.msk = HGC_RXM_DFX_STATUS14_MEM2_MSK,
553 		.shift = HGC_RXM_DFX_STATUS14_MEM2_OFF,
554 		.msg = "rxm_mem2_eccbad_intr",
555 		.reg = HGC_RXM_DFX_STATUS14,
556 	},
557 	{
558 		.irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM3_ECC_MB_OFF),
559 		.msk = HGC_RXM_DFX_STATUS15_MEM3_MSK,
560 		.shift = HGC_RXM_DFX_STATUS15_MEM3_OFF,
561 		.msg = "rxm_mem3_eccbad_intr",
562 		.reg = HGC_RXM_DFX_STATUS15,
563 	},
564 };
565 
566 enum {
567 	HISI_SAS_PHY_PHY_UPDOWN,
568 	HISI_SAS_PHY_CHNL_INT,
569 	HISI_SAS_PHY_INT_NR
570 };
571 
572 enum {
573 	TRANS_TX_FAIL_BASE = 0x0, /* dw0 */
574 	TRANS_RX_FAIL_BASE = 0x20, /* dw1 */
575 	DMA_TX_ERR_BASE = 0x40, /* dw2 bit 15-0 */
576 	SIPC_RX_ERR_BASE = 0x50, /* dw2 bit 31-16*/
577 	DMA_RX_ERR_BASE = 0x60, /* dw3 */
578 
579 	/* trans tx*/
580 	TRANS_TX_OPEN_FAIL_WITH_IT_NEXUS_LOSS = TRANS_TX_FAIL_BASE, /* 0x0 */
581 	TRANS_TX_ERR_PHY_NOT_ENABLE, /* 0x1 */
582 	TRANS_TX_OPEN_CNX_ERR_WRONG_DESTINATION, /* 0x2 */
583 	TRANS_TX_OPEN_CNX_ERR_ZONE_VIOLATION, /* 0x3 */
584 	TRANS_TX_OPEN_CNX_ERR_BY_OTHER, /* 0x4 */
585 	RESERVED0, /* 0x5 */
586 	TRANS_TX_OPEN_CNX_ERR_AIP_TIMEOUT, /* 0x6 */
587 	TRANS_TX_OPEN_CNX_ERR_STP_RESOURCES_BUSY, /* 0x7 */
588 	TRANS_TX_OPEN_CNX_ERR_PROTOCOL_NOT_SUPPORTED, /* 0x8 */
589 	TRANS_TX_OPEN_CNX_ERR_CONNECTION_RATE_NOT_SUPPORTED, /* 0x9 */
590 	TRANS_TX_OPEN_CNX_ERR_BAD_DESTINATION, /* 0xa */
591 	TRANS_TX_OPEN_CNX_ERR_BREAK_RCVD, /* 0xb */
592 	TRANS_TX_OPEN_CNX_ERR_LOW_PHY_POWER, /* 0xc */
593 	TRANS_TX_OPEN_CNX_ERR_PATHWAY_BLOCKED, /* 0xd */
594 	TRANS_TX_OPEN_CNX_ERR_OPEN_TIMEOUT, /* 0xe */
595 	TRANS_TX_OPEN_CNX_ERR_NO_DESTINATION, /* 0xf */
596 	TRANS_TX_OPEN_RETRY_ERR_THRESHOLD_REACHED, /* 0x10 */
597 	TRANS_TX_ERR_FRAME_TXED, /* 0x11 */
598 	TRANS_TX_ERR_WITH_BREAK_TIMEOUT, /* 0x12 */
599 	TRANS_TX_ERR_WITH_BREAK_REQUEST, /* 0x13 */
600 	TRANS_TX_ERR_WITH_BREAK_RECEVIED, /* 0x14 */
601 	TRANS_TX_ERR_WITH_CLOSE_TIMEOUT, /* 0x15 */
602 	TRANS_TX_ERR_WITH_CLOSE_NORMAL, /* 0x16 for ssp*/
603 	TRANS_TX_ERR_WITH_CLOSE_PHYDISALE, /* 0x17 */
604 	TRANS_TX_ERR_WITH_CLOSE_DWS_TIMEOUT, /* 0x18 */
605 	TRANS_TX_ERR_WITH_CLOSE_COMINIT, /* 0x19 */
606 	TRANS_TX_ERR_WITH_NAK_RECEVIED, /* 0x1a for ssp*/
607 	TRANS_TX_ERR_WITH_ACK_NAK_TIMEOUT, /* 0x1b for ssp*/
608 	/*IO_TX_ERR_WITH_R_ERR_RECEVIED, [> 0x1b for sata/stp<] */
609 	TRANS_TX_ERR_WITH_CREDIT_TIMEOUT, /* 0x1c for ssp */
610 	/*IO_RX_ERR_WITH_SATA_DEVICE_LOST 0x1c for sata/stp */
611 	TRANS_TX_ERR_WITH_IPTT_CONFLICT, /* 0x1d for ssp/smp */
612 	TRANS_TX_ERR_WITH_OPEN_BY_DES_OR_OTHERS, /* 0x1e */
613 	/*IO_TX_ERR_WITH_SYNC_RXD, [> 0x1e <] for sata/stp */
614 	TRANS_TX_ERR_WITH_WAIT_RECV_TIMEOUT, /* 0x1f for sata/stp */
615 
616 	/* trans rx */
617 	TRANS_RX_ERR_WITH_RXFRAME_CRC_ERR = TRANS_RX_FAIL_BASE, /* 0x20 */
618 	TRANS_RX_ERR_WITH_RXFIS_8B10B_DISP_ERR, /* 0x21 for sata/stp */
619 	TRANS_RX_ERR_WITH_RXFRAME_HAVE_ERRPRM, /* 0x22 for ssp/smp */
620 	/*IO_ERR_WITH_RXFIS_8B10B_CODE_ERR, [> 0x22 <] for sata/stp */
621 	TRANS_RX_ERR_WITH_RXFIS_DECODE_ERROR, /* 0x23 for sata/stp */
622 	TRANS_RX_ERR_WITH_RXFIS_CRC_ERR, /* 0x24 for sata/stp */
623 	TRANS_RX_ERR_WITH_RXFRAME_LENGTH_OVERRUN, /* 0x25 for smp */
624 	/*IO_ERR_WITH_RXFIS_TX SYNCP, [> 0x25 <] for sata/stp */
625 	TRANS_RX_ERR_WITH_RXFIS_RX_SYNCP, /* 0x26 for sata/stp*/
626 	TRANS_RX_ERR_WITH_LINK_BUF_OVERRUN, /* 0x27 */
627 	TRANS_RX_ERR_WITH_BREAK_TIMEOUT, /* 0x28 */
628 	TRANS_RX_ERR_WITH_BREAK_REQUEST, /* 0x29 */
629 	TRANS_RX_ERR_WITH_BREAK_RECEVIED, /* 0x2a */
630 	RESERVED1, /* 0x2b */
631 	TRANS_RX_ERR_WITH_CLOSE_NORMAL, /* 0x2c */
632 	TRANS_RX_ERR_WITH_CLOSE_PHY_DISABLE, /* 0x2d */
633 	TRANS_RX_ERR_WITH_CLOSE_DWS_TIMEOUT, /* 0x2e */
634 	TRANS_RX_ERR_WITH_CLOSE_COMINIT, /* 0x2f */
635 	TRANS_RX_ERR_WITH_DATA_LEN0, /* 0x30 for ssp/smp */
636 	TRANS_RX_ERR_WITH_BAD_HASH, /* 0x31 for ssp */
637 	/*IO_RX_ERR_WITH_FIS_TOO_SHORT, [> 0x31 <] for sata/stp */
638 	TRANS_RX_XRDY_WLEN_ZERO_ERR, /* 0x32 for ssp*/
639 	/*IO_RX_ERR_WITH_FIS_TOO_LONG, [> 0x32 <] for sata/stp */
640 	TRANS_RX_SSP_FRM_LEN_ERR, /* 0x33 for ssp */
641 	/*IO_RX_ERR_WITH_SATA_DEVICE_LOST, [> 0x33 <] for sata */
642 	RESERVED2, /* 0x34 */
643 	RESERVED3, /* 0x35 */
644 	RESERVED4, /* 0x36 */
645 	RESERVED5, /* 0x37 */
646 	TRANS_RX_ERR_WITH_BAD_FRM_TYPE, /* 0x38 */
647 	TRANS_RX_SMP_FRM_LEN_ERR, /* 0x39 */
648 	TRANS_RX_SMP_RESP_TIMEOUT_ERR, /* 0x3a */
649 	RESERVED6, /* 0x3b */
650 	RESERVED7, /* 0x3c */
651 	RESERVED8, /* 0x3d */
652 	RESERVED9, /* 0x3e */
653 	TRANS_RX_R_ERR, /* 0x3f */
654 
655 	/* dma tx */
656 	DMA_TX_DIF_CRC_ERR = DMA_TX_ERR_BASE, /* 0x40 */
657 	DMA_TX_DIF_APP_ERR, /* 0x41 */
658 	DMA_TX_DIF_RPP_ERR, /* 0x42 */
659 	DMA_TX_DATA_SGL_OVERFLOW, /* 0x43 */
660 	DMA_TX_DIF_SGL_OVERFLOW, /* 0x44 */
661 	DMA_TX_UNEXP_XFER_ERR, /* 0x45 */
662 	DMA_TX_UNEXP_RETRANS_ERR, /* 0x46 */
663 	DMA_TX_XFER_LEN_OVERFLOW, /* 0x47 */
664 	DMA_TX_XFER_OFFSET_ERR, /* 0x48 */
665 	DMA_TX_RAM_ECC_ERR, /* 0x49 */
666 	DMA_TX_DIF_LEN_ALIGN_ERR, /* 0x4a */
667 	DMA_TX_MAX_ERR_CODE,
668 
669 	/* sipc rx */
670 	SIPC_RX_FIS_STATUS_ERR_BIT_VLD = SIPC_RX_ERR_BASE, /* 0x50 */
671 	SIPC_RX_PIO_WRSETUP_STATUS_DRQ_ERR, /* 0x51 */
672 	SIPC_RX_FIS_STATUS_BSY_BIT_ERR, /* 0x52 */
673 	SIPC_RX_WRSETUP_LEN_ODD_ERR, /* 0x53 */
674 	SIPC_RX_WRSETUP_LEN_ZERO_ERR, /* 0x54 */
675 	SIPC_RX_WRDATA_LEN_NOT_MATCH_ERR, /* 0x55 */
676 	SIPC_RX_NCQ_WRSETUP_OFFSET_ERR, /* 0x56 */
677 	SIPC_RX_NCQ_WRSETUP_AUTO_ACTIVE_ERR, /* 0x57 */
678 	SIPC_RX_SATA_UNEXP_FIS_ERR, /* 0x58 */
679 	SIPC_RX_WRSETUP_ESTATUS_ERR, /* 0x59 */
680 	SIPC_RX_DATA_UNDERFLOW_ERR, /* 0x5a */
681 	SIPC_RX_MAX_ERR_CODE,
682 
683 	/* dma rx */
684 	DMA_RX_DIF_CRC_ERR = DMA_RX_ERR_BASE, /* 0x60 */
685 	DMA_RX_DIF_APP_ERR, /* 0x61 */
686 	DMA_RX_DIF_RPP_ERR, /* 0x62 */
687 	DMA_RX_DATA_SGL_OVERFLOW, /* 0x63 */
688 	DMA_RX_DIF_SGL_OVERFLOW, /* 0x64 */
689 	DMA_RX_DATA_LEN_OVERFLOW, /* 0x65 */
690 	DMA_RX_DATA_LEN_UNDERFLOW, /* 0x66 */
691 	DMA_RX_DATA_OFFSET_ERR, /* 0x67 */
692 	RESERVED10, /* 0x68 */
693 	DMA_RX_SATA_FRAME_TYPE_ERR, /* 0x69 */
694 	DMA_RX_RESP_BUF_OVERFLOW, /* 0x6a */
695 	DMA_RX_UNEXP_RETRANS_RESP_ERR, /* 0x6b */
696 	DMA_RX_UNEXP_NORM_RESP_ERR, /* 0x6c */
697 	DMA_RX_UNEXP_RDFRAME_ERR, /* 0x6d */
698 	DMA_RX_PIO_DATA_LEN_ERR, /* 0x6e */
699 	DMA_RX_RDSETUP_STATUS_ERR, /* 0x6f */
700 	DMA_RX_RDSETUP_STATUS_DRQ_ERR, /* 0x70 */
701 	DMA_RX_RDSETUP_STATUS_BSY_ERR, /* 0x71 */
702 	DMA_RX_RDSETUP_LEN_ODD_ERR, /* 0x72 */
703 	DMA_RX_RDSETUP_LEN_ZERO_ERR, /* 0x73 */
704 	DMA_RX_RDSETUP_LEN_OVER_ERR, /* 0x74 */
705 	DMA_RX_RDSETUP_OFFSET_ERR, /* 0x75 */
706 	DMA_RX_RDSETUP_ACTIVE_ERR, /* 0x76 */
707 	DMA_RX_RDSETUP_ESTATUS_ERR, /* 0x77 */
708 	DMA_RX_RAM_ECC_ERR, /* 0x78 */
709 	DMA_RX_UNKNOWN_FRM_ERR, /* 0x79 */
710 	DMA_RX_MAX_ERR_CODE,
711 };
712 
713 #define HISI_SAS_COMMAND_ENTRIES_V2_HW 4096
714 #define HISI_MAX_SATA_SUPPORT_V2_HW	(HISI_SAS_COMMAND_ENTRIES_V2_HW/64 - 1)
715 
716 #define DIR_NO_DATA 0
717 #define DIR_TO_INI 1
718 #define DIR_TO_DEVICE 2
719 #define DIR_RESERVED 3
720 
721 #define ERR_ON_TX_PHASE(err_phase) (err_phase == 0x2 || \
722 		err_phase == 0x4 || err_phase == 0x8 ||\
723 		err_phase == 0x6 || err_phase == 0xa)
724 #define ERR_ON_RX_PHASE(err_phase) (err_phase == 0x10 || \
725 		err_phase == 0x20 || err_phase == 0x40)
726 
727 static void link_timeout_disable_link(struct timer_list *t);
728 
hisi_sas_read32(struct hisi_hba * hisi_hba,u32 off)729 static u32 hisi_sas_read32(struct hisi_hba *hisi_hba, u32 off)
730 {
731 	void __iomem *regs = hisi_hba->regs + off;
732 
733 	return readl(regs);
734 }
735 
hisi_sas_read32_relaxed(struct hisi_hba * hisi_hba,u32 off)736 static u32 hisi_sas_read32_relaxed(struct hisi_hba *hisi_hba, u32 off)
737 {
738 	void __iomem *regs = hisi_hba->regs + off;
739 
740 	return readl_relaxed(regs);
741 }
742 
hisi_sas_write32(struct hisi_hba * hisi_hba,u32 off,u32 val)743 static void hisi_sas_write32(struct hisi_hba *hisi_hba, u32 off, u32 val)
744 {
745 	void __iomem *regs = hisi_hba->regs + off;
746 
747 	writel(val, regs);
748 }
749 
hisi_sas_phy_write32(struct hisi_hba * hisi_hba,int phy_no,u32 off,u32 val)750 static void hisi_sas_phy_write32(struct hisi_hba *hisi_hba, int phy_no,
751 				 u32 off, u32 val)
752 {
753 	void __iomem *regs = hisi_hba->regs + (0x400 * phy_no) + off;
754 
755 	writel(val, regs);
756 }
757 
hisi_sas_phy_read32(struct hisi_hba * hisi_hba,int phy_no,u32 off)758 static u32 hisi_sas_phy_read32(struct hisi_hba *hisi_hba,
759 				      int phy_no, u32 off)
760 {
761 	void __iomem *regs = hisi_hba->regs + (0x400 * phy_no) + off;
762 
763 	return readl(regs);
764 }
765 
766 /* This function needs to be protected from pre-emption. */
767 static int
slot_index_alloc_quirk_v2_hw(struct hisi_hba * hisi_hba,struct domain_device * device)768 slot_index_alloc_quirk_v2_hw(struct hisi_hba *hisi_hba,
769 			     struct domain_device *device)
770 {
771 	int sata_dev = dev_is_sata(device);
772 	void *bitmap = hisi_hba->slot_index_tags;
773 	struct hisi_sas_device *sas_dev = device->lldd_dev;
774 	int sata_idx = sas_dev->sata_idx;
775 	int start, end;
776 
777 	if (!sata_dev) {
778 		/*
779 		 * STP link SoC bug workaround: index starts from 1.
780 		 * additionally, we can only allocate odd IPTT(1~4095)
781 		 * for SAS/SMP device.
782 		 */
783 		start = 1;
784 		end = hisi_hba->slot_index_count;
785 	} else {
786 		if (sata_idx >= HISI_MAX_SATA_SUPPORT_V2_HW)
787 			return -EINVAL;
788 
789 		/*
790 		 * For SATA device: allocate even IPTT in this interval
791 		 * [64*(sata_idx+1), 64*(sata_idx+2)], then each SATA device
792 		 * own 32 IPTTs. IPTT 0 shall not be used duing to STP link
793 		 * SoC bug workaround. So we ignore the first 32 even IPTTs.
794 		 */
795 		start = 64 * (sata_idx + 1);
796 		end = 64 * (sata_idx + 2);
797 	}
798 
799 	spin_lock(&hisi_hba->lock);
800 	while (1) {
801 		start = find_next_zero_bit(bitmap,
802 					hisi_hba->slot_index_count, start);
803 		if (start >= end) {
804 			spin_unlock(&hisi_hba->lock);
805 			return -SAS_QUEUE_FULL;
806 		}
807 		/*
808 		 * SAS IPTT bit0 should be 1, and SATA IPTT bit0 should be 0.
809 		 */
810 		if (sata_dev ^ (start & 1))
811 			break;
812 		start++;
813 	}
814 
815 	set_bit(start, bitmap);
816 	spin_unlock(&hisi_hba->lock);
817 	return start;
818 }
819 
sata_index_alloc_v2_hw(struct hisi_hba * hisi_hba,int * idx)820 static bool sata_index_alloc_v2_hw(struct hisi_hba *hisi_hba, int *idx)
821 {
822 	unsigned int index;
823 	struct device *dev = hisi_hba->dev;
824 	void *bitmap = hisi_hba->sata_dev_bitmap;
825 
826 	index = find_first_zero_bit(bitmap, HISI_MAX_SATA_SUPPORT_V2_HW);
827 	if (index >= HISI_MAX_SATA_SUPPORT_V2_HW) {
828 		dev_warn(dev, "alloc sata index failed, index=%d\n", index);
829 		return false;
830 	}
831 
832 	set_bit(index, bitmap);
833 	*idx = index;
834 	return true;
835 }
836 
837 
838 static struct
alloc_dev_quirk_v2_hw(struct domain_device * device)839 hisi_sas_device *alloc_dev_quirk_v2_hw(struct domain_device *device)
840 {
841 	struct hisi_hba *hisi_hba = device->port->ha->lldd_ha;
842 	struct hisi_sas_device *sas_dev = NULL;
843 	int i, sata_dev = dev_is_sata(device);
844 	int sata_idx = -1;
845 
846 	spin_lock(&hisi_hba->lock);
847 
848 	if (sata_dev)
849 		if (!sata_index_alloc_v2_hw(hisi_hba, &sata_idx))
850 			goto out;
851 
852 	for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) {
853 		/*
854 		 * SATA device id bit0 should be 0
855 		 */
856 		if (sata_dev && (i & 1))
857 			continue;
858 		if (hisi_hba->devices[i].dev_type == SAS_PHY_UNUSED) {
859 			int queue = i % hisi_hba->queue_count;
860 			struct hisi_sas_dq *dq = &hisi_hba->dq[queue];
861 
862 			hisi_hba->devices[i].device_id = i;
863 			sas_dev = &hisi_hba->devices[i];
864 			sas_dev->dev_status = HISI_SAS_DEV_INIT;
865 			sas_dev->dev_type = device->dev_type;
866 			sas_dev->hisi_hba = hisi_hba;
867 			sas_dev->sas_device = device;
868 			sas_dev->sata_idx = sata_idx;
869 			sas_dev->dq = dq;
870 			spin_lock_init(&sas_dev->lock);
871 			INIT_LIST_HEAD(&hisi_hba->devices[i].list);
872 			break;
873 		}
874 	}
875 
876 out:
877 	spin_unlock(&hisi_hba->lock);
878 
879 	return sas_dev;
880 }
881 
config_phy_opt_mode_v2_hw(struct hisi_hba * hisi_hba,int phy_no)882 static void config_phy_opt_mode_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
883 {
884 	u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
885 
886 	cfg &= ~PHY_CFG_DC_OPT_MSK;
887 	cfg |= 1 << PHY_CFG_DC_OPT_OFF;
888 	hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
889 }
890 
config_id_frame_v2_hw(struct hisi_hba * hisi_hba,int phy_no)891 static void config_id_frame_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
892 {
893 	struct sas_identify_frame identify_frame;
894 	u32 *identify_buffer;
895 
896 	memset(&identify_frame, 0, sizeof(identify_frame));
897 	identify_frame.dev_type = SAS_END_DEVICE;
898 	identify_frame.frame_type = 0;
899 	identify_frame._un1 = 1;
900 	identify_frame.initiator_bits = SAS_PROTOCOL_ALL;
901 	identify_frame.target_bits = SAS_PROTOCOL_NONE;
902 	memcpy(&identify_frame._un4_11[0], hisi_hba->sas_addr, SAS_ADDR_SIZE);
903 	memcpy(&identify_frame.sas_addr[0], hisi_hba->sas_addr,	SAS_ADDR_SIZE);
904 	identify_frame.phy_id = phy_no;
905 	identify_buffer = (u32 *)(&identify_frame);
906 
907 	hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD0,
908 			__swab32(identify_buffer[0]));
909 	hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD1,
910 			__swab32(identify_buffer[1]));
911 	hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD2,
912 			__swab32(identify_buffer[2]));
913 	hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD3,
914 			__swab32(identify_buffer[3]));
915 	hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD4,
916 			__swab32(identify_buffer[4]));
917 	hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD5,
918 			__swab32(identify_buffer[5]));
919 }
920 
setup_itct_v2_hw(struct hisi_hba * hisi_hba,struct hisi_sas_device * sas_dev)921 static void setup_itct_v2_hw(struct hisi_hba *hisi_hba,
922 			     struct hisi_sas_device *sas_dev)
923 {
924 	struct domain_device *device = sas_dev->sas_device;
925 	struct device *dev = hisi_hba->dev;
926 	u64 qw0, device_id = sas_dev->device_id;
927 	struct hisi_sas_itct *itct = &hisi_hba->itct[device_id];
928 	struct domain_device *parent_dev = device->parent;
929 	struct asd_sas_port *sas_port = device->port;
930 	struct hisi_sas_port *port = to_hisi_sas_port(sas_port);
931 	u64 sas_addr;
932 
933 	memset(itct, 0, sizeof(*itct));
934 
935 	/* qw0 */
936 	qw0 = 0;
937 	switch (sas_dev->dev_type) {
938 	case SAS_END_DEVICE:
939 	case SAS_EDGE_EXPANDER_DEVICE:
940 	case SAS_FANOUT_EXPANDER_DEVICE:
941 		qw0 = HISI_SAS_DEV_TYPE_SSP << ITCT_HDR_DEV_TYPE_OFF;
942 		break;
943 	case SAS_SATA_DEV:
944 	case SAS_SATA_PENDING:
945 		if (parent_dev && dev_is_expander(parent_dev->dev_type))
946 			qw0 = HISI_SAS_DEV_TYPE_STP << ITCT_HDR_DEV_TYPE_OFF;
947 		else
948 			qw0 = HISI_SAS_DEV_TYPE_SATA << ITCT_HDR_DEV_TYPE_OFF;
949 		break;
950 	default:
951 		dev_warn(dev, "setup itct: unsupported dev type (%d)\n",
952 			 sas_dev->dev_type);
953 	}
954 
955 	qw0 |= ((1 << ITCT_HDR_VALID_OFF) |
956 		(device->linkrate << ITCT_HDR_MCR_OFF) |
957 		(1 << ITCT_HDR_VLN_OFF) |
958 		(ITCT_HDR_SMP_TIMEOUT << ITCT_HDR_SMP_TIMEOUT_OFF) |
959 		(1 << ITCT_HDR_AWT_CONTINUE_OFF) |
960 		(port->id << ITCT_HDR_PORT_ID_OFF));
961 	itct->qw0 = cpu_to_le64(qw0);
962 
963 	/* qw1 */
964 	memcpy(&sas_addr, device->sas_addr, SAS_ADDR_SIZE);
965 	itct->sas_addr = cpu_to_le64(__swab64(sas_addr));
966 
967 	/* qw2 */
968 	if (!dev_is_sata(device))
969 		itct->qw2 = cpu_to_le64((5000ULL << ITCT_HDR_INLT_OFF) |
970 					(0x1ULL << ITCT_HDR_BITLT_OFF) |
971 					(0x32ULL << ITCT_HDR_MCTLT_OFF) |
972 					(0x1ULL << ITCT_HDR_RTOLT_OFF));
973 }
974 
clear_itct_v2_hw(struct hisi_hba * hisi_hba,struct hisi_sas_device * sas_dev)975 static int clear_itct_v2_hw(struct hisi_hba *hisi_hba,
976 			    struct hisi_sas_device *sas_dev)
977 {
978 	DECLARE_COMPLETION_ONSTACK(completion);
979 	u64 dev_id = sas_dev->device_id;
980 	struct hisi_sas_itct *itct = &hisi_hba->itct[dev_id];
981 	u32 reg_val = hisi_sas_read32(hisi_hba, ENT_INT_SRC3);
982 	struct device *dev = hisi_hba->dev;
983 	int i;
984 
985 	sas_dev->completion = &completion;
986 
987 	/* clear the itct interrupt state */
988 	if (ENT_INT_SRC3_ITC_INT_MSK & reg_val)
989 		hisi_sas_write32(hisi_hba, ENT_INT_SRC3,
990 				 ENT_INT_SRC3_ITC_INT_MSK);
991 
992 	/* need to set register twice to clear ITCT for v2 hw */
993 	for (i = 0; i < 2; i++) {
994 		reg_val = ITCT_CLR_EN_MSK | (dev_id & ITCT_DEV_MSK);
995 		hisi_sas_write32(hisi_hba, ITCT_CLR, reg_val);
996 		if (!wait_for_completion_timeout(sas_dev->completion,
997 						 HISI_SAS_CLEAR_ITCT_TIMEOUT)) {
998 			dev_warn(dev, "failed to clear ITCT\n");
999 			return -ETIMEDOUT;
1000 		}
1001 
1002 		memset(itct, 0, sizeof(struct hisi_sas_itct));
1003 	}
1004 	return 0;
1005 }
1006 
free_device_v2_hw(struct hisi_sas_device * sas_dev)1007 static void free_device_v2_hw(struct hisi_sas_device *sas_dev)
1008 {
1009 	struct hisi_hba *hisi_hba = sas_dev->hisi_hba;
1010 
1011 	/* SoC bug workaround */
1012 	if (dev_is_sata(sas_dev->sas_device))
1013 		clear_bit(sas_dev->sata_idx, hisi_hba->sata_dev_bitmap);
1014 }
1015 
reset_hw_v2_hw(struct hisi_hba * hisi_hba)1016 static int reset_hw_v2_hw(struct hisi_hba *hisi_hba)
1017 {
1018 	int i, reset_val;
1019 	u32 val;
1020 	unsigned long end_time;
1021 	struct device *dev = hisi_hba->dev;
1022 
1023 	/* The mask needs to be set depending on the number of phys */
1024 	if (hisi_hba->n_phy == 9)
1025 		reset_val = 0x1fffff;
1026 	else
1027 		reset_val = 0x7ffff;
1028 
1029 	hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, 0);
1030 
1031 	/* Disable all of the PHYs */
1032 	for (i = 0; i < hisi_hba->n_phy; i++) {
1033 		u32 phy_cfg = hisi_sas_phy_read32(hisi_hba, i, PHY_CFG);
1034 
1035 		phy_cfg &= ~PHY_CTRL_RESET_MSK;
1036 		hisi_sas_phy_write32(hisi_hba, i, PHY_CFG, phy_cfg);
1037 	}
1038 	udelay(50);
1039 
1040 	/* Ensure DMA tx & rx idle */
1041 	for (i = 0; i < hisi_hba->n_phy; i++) {
1042 		u32 dma_tx_status, dma_rx_status;
1043 
1044 		end_time = jiffies + msecs_to_jiffies(1000);
1045 
1046 		while (1) {
1047 			dma_tx_status = hisi_sas_phy_read32(hisi_hba, i,
1048 							    DMA_TX_STATUS);
1049 			dma_rx_status = hisi_sas_phy_read32(hisi_hba, i,
1050 							    DMA_RX_STATUS);
1051 
1052 			if (!(dma_tx_status & DMA_TX_STATUS_BUSY_MSK) &&
1053 				!(dma_rx_status & DMA_RX_STATUS_BUSY_MSK))
1054 				break;
1055 
1056 			msleep(20);
1057 			if (time_after(jiffies, end_time))
1058 				return -EIO;
1059 		}
1060 	}
1061 
1062 	/* Ensure axi bus idle */
1063 	end_time = jiffies + msecs_to_jiffies(1000);
1064 	while (1) {
1065 		u32 axi_status =
1066 			hisi_sas_read32(hisi_hba, AXI_CFG);
1067 
1068 		if (axi_status == 0)
1069 			break;
1070 
1071 		msleep(20);
1072 		if (time_after(jiffies, end_time))
1073 			return -EIO;
1074 	}
1075 
1076 	if (ACPI_HANDLE(dev)) {
1077 		acpi_status s;
1078 
1079 		s = acpi_evaluate_object(ACPI_HANDLE(dev), "_RST", NULL, NULL);
1080 		if (ACPI_FAILURE(s)) {
1081 			dev_err(dev, "Reset failed\n");
1082 			return -EIO;
1083 		}
1084 	} else if (hisi_hba->ctrl) {
1085 		/* reset and disable clock*/
1086 		regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_reset_reg,
1087 				reset_val);
1088 		regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_clock_ena_reg + 4,
1089 				reset_val);
1090 		msleep(1);
1091 		regmap_read(hisi_hba->ctrl, hisi_hba->ctrl_reset_sts_reg, &val);
1092 		if (reset_val != (val & reset_val)) {
1093 			dev_err(dev, "SAS reset fail.\n");
1094 			return -EIO;
1095 		}
1096 
1097 		/* De-reset and enable clock*/
1098 		regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_reset_reg + 4,
1099 				reset_val);
1100 		regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_clock_ena_reg,
1101 				reset_val);
1102 		msleep(1);
1103 		regmap_read(hisi_hba->ctrl, hisi_hba->ctrl_reset_sts_reg,
1104 				&val);
1105 		if (val & reset_val) {
1106 			dev_err(dev, "SAS de-reset fail.\n");
1107 			return -EIO;
1108 		}
1109 	} else {
1110 		dev_err(dev, "no reset method\n");
1111 		return -EINVAL;
1112 	}
1113 
1114 	return 0;
1115 }
1116 
1117 /* This function needs to be called after resetting SAS controller. */
phys_reject_stp_links_v2_hw(struct hisi_hba * hisi_hba)1118 static void phys_reject_stp_links_v2_hw(struct hisi_hba *hisi_hba)
1119 {
1120 	u32 cfg;
1121 	int phy_no;
1122 
1123 	hisi_hba->reject_stp_links_msk = (1 << hisi_hba->n_phy) - 1;
1124 	for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) {
1125 		cfg = hisi_sas_phy_read32(hisi_hba, phy_no, CON_CONTROL);
1126 		if (!(cfg & CON_CONTROL_CFG_OPEN_ACC_STP_MSK))
1127 			continue;
1128 
1129 		cfg &= ~CON_CONTROL_CFG_OPEN_ACC_STP_MSK;
1130 		hisi_sas_phy_write32(hisi_hba, phy_no, CON_CONTROL, cfg);
1131 	}
1132 }
1133 
phys_try_accept_stp_links_v2_hw(struct hisi_hba * hisi_hba)1134 static void phys_try_accept_stp_links_v2_hw(struct hisi_hba *hisi_hba)
1135 {
1136 	int phy_no;
1137 	u32 dma_tx_dfx1;
1138 
1139 	for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) {
1140 		if (!(hisi_hba->reject_stp_links_msk & BIT(phy_no)))
1141 			continue;
1142 
1143 		dma_tx_dfx1 = hisi_sas_phy_read32(hisi_hba, phy_no,
1144 						DMA_TX_DFX1);
1145 		if (dma_tx_dfx1 & DMA_TX_DFX1_IPTT_MSK) {
1146 			u32 cfg = hisi_sas_phy_read32(hisi_hba,
1147 				phy_no, CON_CONTROL);
1148 
1149 			cfg |= CON_CONTROL_CFG_OPEN_ACC_STP_MSK;
1150 			hisi_sas_phy_write32(hisi_hba, phy_no,
1151 				CON_CONTROL, cfg);
1152 			clear_bit(phy_no, &hisi_hba->reject_stp_links_msk);
1153 		}
1154 	}
1155 }
1156 
1157 static const struct signal_attenuation_s x6000 = {9200, 0, 10476};
1158 static const struct sig_atten_lu_s sig_atten_lu[] = {
1159 	{ &x6000, 0x3016a68 },
1160 };
1161 
init_reg_v2_hw(struct hisi_hba * hisi_hba)1162 static void init_reg_v2_hw(struct hisi_hba *hisi_hba)
1163 {
1164 	struct device *dev = hisi_hba->dev;
1165 	u32 sas_phy_ctrl = 0x30b9908;
1166 	u32 signal[3];
1167 	int i;
1168 
1169 	/* Global registers init */
1170 
1171 	/* Deal with am-max-transmissions quirk */
1172 	if (device_property_present(dev, "hip06-sas-v2-quirk-amt")) {
1173 		hisi_sas_write32(hisi_hba, AM_CFG_MAX_TRANS, 0x2020);
1174 		hisi_sas_write32(hisi_hba, AM_CFG_SINGLE_PORT_MAX_TRANS,
1175 				 0x2020);
1176 	} /* Else, use defaults -> do nothing */
1177 
1178 	hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE,
1179 			 (u32)((1ULL << hisi_hba->queue_count) - 1));
1180 	hisi_sas_write32(hisi_hba, AXI_USER1, 0xc0000000);
1181 	hisi_sas_write32(hisi_hba, AXI_USER2, 0x10000);
1182 	hisi_sas_write32(hisi_hba, HGC_SAS_TXFAIL_RETRY_CTRL, 0x0);
1183 	hisi_sas_write32(hisi_hba, HGC_SAS_TX_OPEN_FAIL_RETRY_CTRL, 0x7FF);
1184 	hisi_sas_write32(hisi_hba, OPENA_WT_CONTI_TIME, 0x1);
1185 	hisi_sas_write32(hisi_hba, I_T_NEXUS_LOSS_TIME, 0x1F4);
1186 	hisi_sas_write32(hisi_hba, MAX_CON_TIME_LIMIT_TIME, 0x32);
1187 	hisi_sas_write32(hisi_hba, BUS_INACTIVE_LIMIT_TIME, 0x1);
1188 	hisi_sas_write32(hisi_hba, CFG_AGING_TIME, 0x1);
1189 	hisi_sas_write32(hisi_hba, HGC_ERR_STAT_EN, 0x1);
1190 	hisi_sas_write32(hisi_hba, HGC_GET_ITV_TIME, 0x1);
1191 	hisi_sas_write32(hisi_hba, INT_COAL_EN, 0xc);
1192 	hisi_sas_write32(hisi_hba, OQ_INT_COAL_TIME, 0x60);
1193 	hisi_sas_write32(hisi_hba, OQ_INT_COAL_CNT, 0x3);
1194 	hisi_sas_write32(hisi_hba, ENT_INT_COAL_TIME, 0x1);
1195 	hisi_sas_write32(hisi_hba, ENT_INT_COAL_CNT, 0x1);
1196 	hisi_sas_write32(hisi_hba, OQ_INT_SRC, 0x0);
1197 	hisi_sas_write32(hisi_hba, ENT_INT_SRC1, 0xffffffff);
1198 	hisi_sas_write32(hisi_hba, ENT_INT_SRC2, 0xffffffff);
1199 	hisi_sas_write32(hisi_hba, ENT_INT_SRC3, 0xffffffff);
1200 	hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1, 0x7efefefe);
1201 	hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK2, 0x7efefefe);
1202 	hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, 0x7ffe20fe);
1203 	hisi_sas_write32(hisi_hba, SAS_ECC_INTR_MSK, 0xfff00c30);
1204 	for (i = 0; i < hisi_hba->queue_count; i++)
1205 		hisi_sas_write32(hisi_hba, OQ0_INT_SRC_MSK + 0x4 * i, 0);
1206 
1207 	hisi_sas_write32(hisi_hba, AXI_AHB_CLK_CFG, 1);
1208 	hisi_sas_write32(hisi_hba, HYPER_STREAM_ID_EN_CFG, 1);
1209 
1210 	/* Get sas_phy_ctrl value to deal with TX FFE issue. */
1211 	if (!device_property_read_u32_array(dev, "hisilicon,signal-attenuation",
1212 					    signal, ARRAY_SIZE(signal))) {
1213 		for (i = 0; i < ARRAY_SIZE(sig_atten_lu); i++) {
1214 			const struct sig_atten_lu_s *lookup = &sig_atten_lu[i];
1215 			const struct signal_attenuation_s *att = lookup->att;
1216 
1217 			if ((signal[0] == att->de_emphasis) &&
1218 			    (signal[1] == att->preshoot) &&
1219 			    (signal[2] == att->boost)) {
1220 				sas_phy_ctrl = lookup->sas_phy_ctrl;
1221 				break;
1222 			}
1223 		}
1224 
1225 		if (i == ARRAY_SIZE(sig_atten_lu))
1226 			dev_warn(dev, "unknown signal attenuation values, using default PHY ctrl config\n");
1227 	}
1228 
1229 	for (i = 0; i < hisi_hba->n_phy; i++) {
1230 		struct hisi_sas_phy *phy = &hisi_hba->phy[i];
1231 		struct asd_sas_phy *sas_phy = &phy->sas_phy;
1232 		u32 prog_phy_link_rate = 0x800;
1233 
1234 		if (!sas_phy->phy || (sas_phy->phy->maximum_linkrate <
1235 				SAS_LINK_RATE_1_5_GBPS)) {
1236 			prog_phy_link_rate = 0x855;
1237 		} else {
1238 			enum sas_linkrate max = sas_phy->phy->maximum_linkrate;
1239 
1240 			prog_phy_link_rate =
1241 				hisi_sas_get_prog_phy_linkrate_mask(max) |
1242 				0x800;
1243 		}
1244 		hisi_sas_phy_write32(hisi_hba, i, PROG_PHY_LINK_RATE,
1245 			prog_phy_link_rate);
1246 		hisi_sas_phy_write32(hisi_hba, i, SAS_PHY_CTRL, sas_phy_ctrl);
1247 		hisi_sas_phy_write32(hisi_hba, i, SL_TOUT_CFG, 0x7d7d7d7d);
1248 		hisi_sas_phy_write32(hisi_hba, i, SL_CONTROL, 0x0);
1249 		hisi_sas_phy_write32(hisi_hba, i, TXID_AUTO, 0x2);
1250 		hisi_sas_phy_write32(hisi_hba, i, DONE_RECEIVED_TIME, 0x8);
1251 		hisi_sas_phy_write32(hisi_hba, i, CHL_INT0, 0xffffffff);
1252 		hisi_sas_phy_write32(hisi_hba, i, CHL_INT1, 0xffffffff);
1253 		hisi_sas_phy_write32(hisi_hba, i, CHL_INT2, 0xfff87fff);
1254 		hisi_sas_phy_write32(hisi_hba, i, RXOP_CHECK_CFG_H, 0x1000);
1255 		hisi_sas_phy_write32(hisi_hba, i, CHL_INT1_MSK, 0xff857fff);
1256 		hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x8ffffbfe);
1257 		hisi_sas_phy_write32(hisi_hba, i, SL_CFG, 0x13f801fc);
1258 		hisi_sas_phy_write32(hisi_hba, i, PHY_CTRL_RDY_MSK, 0x0);
1259 		hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_NOT_RDY_MSK, 0x0);
1260 		hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_DWS_RESET_MSK, 0x0);
1261 		hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_PHY_ENA_MSK, 0x0);
1262 		hisi_sas_phy_write32(hisi_hba, i, SL_RX_BCAST_CHK_MSK, 0x0);
1263 		hisi_sas_phy_write32(hisi_hba, i, CHL_INT_COAL_EN, 0x0);
1264 		hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_OOB_RESTART_MSK, 0x0);
1265 		if (hisi_hba->refclk_frequency_mhz == 66)
1266 			hisi_sas_phy_write32(hisi_hba, i, PHY_CTRL, 0x199B694);
1267 		/* else, do nothing -> leave it how you found it */
1268 	}
1269 
1270 	for (i = 0; i < hisi_hba->queue_count; i++) {
1271 		/* Delivery queue */
1272 		hisi_sas_write32(hisi_hba,
1273 				 DLVRY_Q_0_BASE_ADDR_HI + (i * 0x14),
1274 				 upper_32_bits(hisi_hba->cmd_hdr_dma[i]));
1275 
1276 		hisi_sas_write32(hisi_hba, DLVRY_Q_0_BASE_ADDR_LO + (i * 0x14),
1277 				 lower_32_bits(hisi_hba->cmd_hdr_dma[i]));
1278 
1279 		hisi_sas_write32(hisi_hba, DLVRY_Q_0_DEPTH + (i * 0x14),
1280 				 HISI_SAS_QUEUE_SLOTS);
1281 
1282 		/* Completion queue */
1283 		hisi_sas_write32(hisi_hba, COMPL_Q_0_BASE_ADDR_HI + (i * 0x14),
1284 				 upper_32_bits(hisi_hba->complete_hdr_dma[i]));
1285 
1286 		hisi_sas_write32(hisi_hba, COMPL_Q_0_BASE_ADDR_LO + (i * 0x14),
1287 				 lower_32_bits(hisi_hba->complete_hdr_dma[i]));
1288 
1289 		hisi_sas_write32(hisi_hba, COMPL_Q_0_DEPTH + (i * 0x14),
1290 				 HISI_SAS_QUEUE_SLOTS);
1291 	}
1292 
1293 	/* itct */
1294 	hisi_sas_write32(hisi_hba, ITCT_BASE_ADDR_LO,
1295 			 lower_32_bits(hisi_hba->itct_dma));
1296 
1297 	hisi_sas_write32(hisi_hba, ITCT_BASE_ADDR_HI,
1298 			 upper_32_bits(hisi_hba->itct_dma));
1299 
1300 	/* iost */
1301 	hisi_sas_write32(hisi_hba, IOST_BASE_ADDR_LO,
1302 			 lower_32_bits(hisi_hba->iost_dma));
1303 
1304 	hisi_sas_write32(hisi_hba, IOST_BASE_ADDR_HI,
1305 			 upper_32_bits(hisi_hba->iost_dma));
1306 
1307 	/* breakpoint */
1308 	hisi_sas_write32(hisi_hba, IO_BROKEN_MSG_ADDR_LO,
1309 			 lower_32_bits(hisi_hba->breakpoint_dma));
1310 
1311 	hisi_sas_write32(hisi_hba, IO_BROKEN_MSG_ADDR_HI,
1312 			 upper_32_bits(hisi_hba->breakpoint_dma));
1313 
1314 	/* SATA broken msg */
1315 	hisi_sas_write32(hisi_hba, IO_SATA_BROKEN_MSG_ADDR_LO,
1316 			 lower_32_bits(hisi_hba->sata_breakpoint_dma));
1317 
1318 	hisi_sas_write32(hisi_hba, IO_SATA_BROKEN_MSG_ADDR_HI,
1319 			 upper_32_bits(hisi_hba->sata_breakpoint_dma));
1320 
1321 	/* SATA initial fis */
1322 	hisi_sas_write32(hisi_hba, SATA_INITI_D2H_STORE_ADDR_LO,
1323 			 lower_32_bits(hisi_hba->initial_fis_dma));
1324 
1325 	hisi_sas_write32(hisi_hba, SATA_INITI_D2H_STORE_ADDR_HI,
1326 			 upper_32_bits(hisi_hba->initial_fis_dma));
1327 }
1328 
link_timeout_enable_link(struct timer_list * t)1329 static void link_timeout_enable_link(struct timer_list *t)
1330 {
1331 	struct hisi_hba *hisi_hba = from_timer(hisi_hba, t, timer);
1332 	int i, reg_val;
1333 
1334 	for (i = 0; i < hisi_hba->n_phy; i++) {
1335 		if (hisi_hba->reject_stp_links_msk & BIT(i))
1336 			continue;
1337 
1338 		reg_val = hisi_sas_phy_read32(hisi_hba, i, CON_CONTROL);
1339 		if (!(reg_val & BIT(0))) {
1340 			hisi_sas_phy_write32(hisi_hba, i,
1341 					CON_CONTROL, 0x7);
1342 			break;
1343 		}
1344 	}
1345 
1346 	hisi_hba->timer.function = link_timeout_disable_link;
1347 	mod_timer(&hisi_hba->timer, jiffies + msecs_to_jiffies(900));
1348 }
1349 
link_timeout_disable_link(struct timer_list * t)1350 static void link_timeout_disable_link(struct timer_list *t)
1351 {
1352 	struct hisi_hba *hisi_hba = from_timer(hisi_hba, t, timer);
1353 	int i, reg_val;
1354 
1355 	reg_val = hisi_sas_read32(hisi_hba, PHY_STATE);
1356 	for (i = 0; i < hisi_hba->n_phy && reg_val; i++) {
1357 		if (hisi_hba->reject_stp_links_msk & BIT(i))
1358 			continue;
1359 
1360 		if (reg_val & BIT(i)) {
1361 			hisi_sas_phy_write32(hisi_hba, i,
1362 					CON_CONTROL, 0x6);
1363 			break;
1364 		}
1365 	}
1366 
1367 	hisi_hba->timer.function = link_timeout_enable_link;
1368 	mod_timer(&hisi_hba->timer, jiffies + msecs_to_jiffies(100));
1369 }
1370 
set_link_timer_quirk(struct hisi_hba * hisi_hba)1371 static void set_link_timer_quirk(struct hisi_hba *hisi_hba)
1372 {
1373 	hisi_hba->timer.function = link_timeout_disable_link;
1374 	hisi_hba->timer.expires = jiffies + msecs_to_jiffies(1000);
1375 	add_timer(&hisi_hba->timer);
1376 }
1377 
hw_init_v2_hw(struct hisi_hba * hisi_hba)1378 static int hw_init_v2_hw(struct hisi_hba *hisi_hba)
1379 {
1380 	struct device *dev = hisi_hba->dev;
1381 	int rc;
1382 
1383 	rc = reset_hw_v2_hw(hisi_hba);
1384 	if (rc) {
1385 		dev_err(dev, "hisi_sas_reset_hw failed, rc=%d\n", rc);
1386 		return rc;
1387 	}
1388 
1389 	msleep(100);
1390 	init_reg_v2_hw(hisi_hba);
1391 
1392 	return 0;
1393 }
1394 
enable_phy_v2_hw(struct hisi_hba * hisi_hba,int phy_no)1395 static void enable_phy_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
1396 {
1397 	u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
1398 
1399 	cfg |= PHY_CFG_ENA_MSK;
1400 	hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
1401 }
1402 
is_sata_phy_v2_hw(struct hisi_hba * hisi_hba,int phy_no)1403 static bool is_sata_phy_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
1404 {
1405 	u32 context;
1406 
1407 	context = hisi_sas_read32(hisi_hba, PHY_CONTEXT);
1408 	if (context & (1 << phy_no))
1409 		return true;
1410 
1411 	return false;
1412 }
1413 
tx_fifo_is_empty_v2_hw(struct hisi_hba * hisi_hba,int phy_no)1414 static bool tx_fifo_is_empty_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
1415 {
1416 	u32 dfx_val;
1417 
1418 	dfx_val = hisi_sas_phy_read32(hisi_hba, phy_no, DMA_TX_DFX1);
1419 
1420 	if (dfx_val & BIT(16))
1421 		return false;
1422 
1423 	return true;
1424 }
1425 
axi_bus_is_idle_v2_hw(struct hisi_hba * hisi_hba,int phy_no)1426 static bool axi_bus_is_idle_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
1427 {
1428 	int i, max_loop = 1000;
1429 	struct device *dev = hisi_hba->dev;
1430 	u32 status, axi_status, dfx_val, dfx_tx_val;
1431 
1432 	for (i = 0; i < max_loop; i++) {
1433 		status = hisi_sas_read32_relaxed(hisi_hba,
1434 			AXI_MASTER_CFG_BASE + AM_CURR_TRANS_RETURN);
1435 
1436 		axi_status = hisi_sas_read32(hisi_hba, AXI_CFG);
1437 		dfx_val = hisi_sas_phy_read32(hisi_hba, phy_no, DMA_TX_DFX1);
1438 		dfx_tx_val = hisi_sas_phy_read32(hisi_hba,
1439 			phy_no, DMA_TX_FIFO_DFX0);
1440 
1441 		if ((status == 0x3) && (axi_status == 0x0) &&
1442 		    (dfx_val & BIT(20)) && (dfx_tx_val & BIT(10)))
1443 			return true;
1444 		udelay(10);
1445 	}
1446 	dev_err(dev, "bus is not idle phy%d, axi150:0x%x axi100:0x%x port204:0x%x port240:0x%x\n",
1447 			phy_no, status, axi_status,
1448 			dfx_val, dfx_tx_val);
1449 	return false;
1450 }
1451 
wait_io_done_v2_hw(struct hisi_hba * hisi_hba,int phy_no)1452 static bool wait_io_done_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
1453 {
1454 	int i, max_loop = 1000;
1455 	struct device *dev = hisi_hba->dev;
1456 	u32 status, tx_dfx0;
1457 
1458 	for (i = 0; i < max_loop; i++) {
1459 		status = hisi_sas_phy_read32(hisi_hba, phy_no, LINK_DFX2);
1460 		status = (status & 0x3fc0) >> 6;
1461 
1462 		if (status != 0x1)
1463 			return true;
1464 
1465 		tx_dfx0 = hisi_sas_phy_read32(hisi_hba, phy_no, DMA_TX_DFX0);
1466 		if ((tx_dfx0 & 0x1ff) == 0x2)
1467 			return true;
1468 		udelay(10);
1469 	}
1470 	dev_err(dev, "IO not done phy%d, port264:0x%x port200:0x%x\n",
1471 			phy_no, status, tx_dfx0);
1472 	return false;
1473 }
1474 
allowed_disable_phy_v2_hw(struct hisi_hba * hisi_hba,int phy_no)1475 static bool allowed_disable_phy_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
1476 {
1477 	if (tx_fifo_is_empty_v2_hw(hisi_hba, phy_no))
1478 		return true;
1479 
1480 	if (!axi_bus_is_idle_v2_hw(hisi_hba, phy_no))
1481 		return false;
1482 
1483 	if (!wait_io_done_v2_hw(hisi_hba, phy_no))
1484 		return false;
1485 
1486 	return true;
1487 }
1488 
1489 
disable_phy_v2_hw(struct hisi_hba * hisi_hba,int phy_no)1490 static void disable_phy_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
1491 {
1492 	u32 cfg, axi_val, dfx0_val, txid_auto;
1493 	struct device *dev = hisi_hba->dev;
1494 
1495 	/* Close axi bus. */
1496 	axi_val = hisi_sas_read32(hisi_hba, AXI_MASTER_CFG_BASE +
1497 				AM_CTRL_GLOBAL);
1498 	axi_val |= 0x1;
1499 	hisi_sas_write32(hisi_hba, AXI_MASTER_CFG_BASE +
1500 		AM_CTRL_GLOBAL, axi_val);
1501 
1502 	if (is_sata_phy_v2_hw(hisi_hba, phy_no)) {
1503 		if (allowed_disable_phy_v2_hw(hisi_hba, phy_no))
1504 			goto do_disable;
1505 
1506 		/* Reset host controller. */
1507 		queue_work(hisi_hba->wq, &hisi_hba->rst_work);
1508 		return;
1509 	}
1510 
1511 	dfx0_val = hisi_sas_phy_read32(hisi_hba, phy_no, PORT_DFX0);
1512 	dfx0_val = (dfx0_val & 0x1fc0) >> 6;
1513 	if (dfx0_val != 0x4)
1514 		goto do_disable;
1515 
1516 	if (!tx_fifo_is_empty_v2_hw(hisi_hba, phy_no)) {
1517 		dev_warn(dev, "phy%d, wait tx fifo need send break\n",
1518 			phy_no);
1519 		txid_auto = hisi_sas_phy_read32(hisi_hba, phy_no,
1520 					TXID_AUTO);
1521 		txid_auto |= TXID_AUTO_CTB_MSK;
1522 		hisi_sas_phy_write32(hisi_hba, phy_no, TXID_AUTO,
1523 					txid_auto);
1524 	}
1525 
1526 do_disable:
1527 	cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
1528 	cfg &= ~PHY_CFG_ENA_MSK;
1529 	hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
1530 
1531 	/* Open axi bus. */
1532 	axi_val &= ~0x1;
1533 	hisi_sas_write32(hisi_hba, AXI_MASTER_CFG_BASE +
1534 		AM_CTRL_GLOBAL, axi_val);
1535 }
1536 
start_phy_v2_hw(struct hisi_hba * hisi_hba,int phy_no)1537 static void start_phy_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
1538 {
1539 	config_id_frame_v2_hw(hisi_hba, phy_no);
1540 	config_phy_opt_mode_v2_hw(hisi_hba, phy_no);
1541 	enable_phy_v2_hw(hisi_hba, phy_no);
1542 }
1543 
phy_hard_reset_v2_hw(struct hisi_hba * hisi_hba,int phy_no)1544 static void phy_hard_reset_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
1545 {
1546 	struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
1547 	u32 txid_auto;
1548 
1549 	hisi_sas_phy_enable(hisi_hba, phy_no, 0);
1550 	if (phy->identify.device_type == SAS_END_DEVICE) {
1551 		txid_auto = hisi_sas_phy_read32(hisi_hba, phy_no, TXID_AUTO);
1552 		hisi_sas_phy_write32(hisi_hba, phy_no, TXID_AUTO,
1553 					txid_auto | TX_HARDRST_MSK);
1554 	}
1555 	msleep(100);
1556 	hisi_sas_phy_enable(hisi_hba, phy_no, 1);
1557 }
1558 
phy_get_events_v2_hw(struct hisi_hba * hisi_hba,int phy_no)1559 static void phy_get_events_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
1560 {
1561 	struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
1562 	struct asd_sas_phy *sas_phy = &phy->sas_phy;
1563 	struct sas_phy *sphy = sas_phy->phy;
1564 	u32 err4_reg_val, err6_reg_val;
1565 
1566 	/* loss dword syn, phy reset problem */
1567 	err4_reg_val = hisi_sas_phy_read32(hisi_hba, phy_no, SAS_ERR_CNT4_REG);
1568 
1569 	/* disparity err, invalid dword */
1570 	err6_reg_val = hisi_sas_phy_read32(hisi_hba, phy_no, SAS_ERR_CNT6_REG);
1571 
1572 	sphy->loss_of_dword_sync_count += (err4_reg_val >> 16) & 0xFFFF;
1573 	sphy->phy_reset_problem_count += err4_reg_val & 0xFFFF;
1574 	sphy->invalid_dword_count += (err6_reg_val & 0xFF0000) >> 16;
1575 	sphy->running_disparity_error_count += err6_reg_val & 0xFF;
1576 }
1577 
phys_init_v2_hw(struct hisi_hba * hisi_hba)1578 static void phys_init_v2_hw(struct hisi_hba *hisi_hba)
1579 {
1580 	int i;
1581 
1582 	for (i = 0; i < hisi_hba->n_phy; i++) {
1583 		struct hisi_sas_phy *phy = &hisi_hba->phy[i];
1584 		struct asd_sas_phy *sas_phy = &phy->sas_phy;
1585 
1586 		if (!sas_phy->phy->enabled)
1587 			continue;
1588 
1589 		hisi_sas_phy_enable(hisi_hba, i, 1);
1590 	}
1591 }
1592 
sl_notify_ssp_v2_hw(struct hisi_hba * hisi_hba,int phy_no)1593 static void sl_notify_ssp_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
1594 {
1595 	u32 sl_control;
1596 
1597 	sl_control = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL);
1598 	sl_control |= SL_CONTROL_NOTIFY_EN_MSK;
1599 	hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL, sl_control);
1600 	msleep(1);
1601 	sl_control = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL);
1602 	sl_control &= ~SL_CONTROL_NOTIFY_EN_MSK;
1603 	hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL, sl_control);
1604 }
1605 
phy_get_max_linkrate_v2_hw(void)1606 static enum sas_linkrate phy_get_max_linkrate_v2_hw(void)
1607 {
1608 	return SAS_LINK_RATE_12_0_GBPS;
1609 }
1610 
phy_set_linkrate_v2_hw(struct hisi_hba * hisi_hba,int phy_no,struct sas_phy_linkrates * r)1611 static void phy_set_linkrate_v2_hw(struct hisi_hba *hisi_hba, int phy_no,
1612 		struct sas_phy_linkrates *r)
1613 {
1614 	enum sas_linkrate max = r->maximum_linkrate;
1615 	u32 prog_phy_link_rate = 0x800;
1616 
1617 	prog_phy_link_rate |= hisi_sas_get_prog_phy_linkrate_mask(max);
1618 	hisi_sas_phy_write32(hisi_hba, phy_no, PROG_PHY_LINK_RATE,
1619 			     prog_phy_link_rate);
1620 }
1621 
get_wideport_bitmap_v2_hw(struct hisi_hba * hisi_hba,int port_id)1622 static int get_wideport_bitmap_v2_hw(struct hisi_hba *hisi_hba, int port_id)
1623 {
1624 	int i, bitmap = 0;
1625 	u32 phy_port_num_ma = hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA);
1626 	u32 phy_state = hisi_sas_read32(hisi_hba, PHY_STATE);
1627 
1628 	for (i = 0; i < (hisi_hba->n_phy < 9 ? hisi_hba->n_phy : 8); i++)
1629 		if (phy_state & 1 << i)
1630 			if (((phy_port_num_ma >> (i * 4)) & 0xf) == port_id)
1631 				bitmap |= 1 << i;
1632 
1633 	if (hisi_hba->n_phy == 9) {
1634 		u32 port_state = hisi_sas_read32(hisi_hba, PORT_STATE);
1635 
1636 		if (phy_state & 1 << 8)
1637 			if (((port_state & PORT_STATE_PHY8_PORT_NUM_MSK) >>
1638 			     PORT_STATE_PHY8_PORT_NUM_OFF) == port_id)
1639 				bitmap |= 1 << 9;
1640 	}
1641 
1642 	return bitmap;
1643 }
1644 
1645 /* DQ lock must be taken here */
start_delivery_v2_hw(struct hisi_sas_dq * dq)1646 static void start_delivery_v2_hw(struct hisi_sas_dq *dq)
1647 {
1648 	struct hisi_hba *hisi_hba = dq->hisi_hba;
1649 	struct hisi_sas_slot *s, *s1, *s2 = NULL;
1650 	int dlvry_queue = dq->id;
1651 	int wp;
1652 
1653 	list_for_each_entry_safe(s, s1, &dq->list, delivery) {
1654 		if (!s->ready)
1655 			break;
1656 		s2 = s;
1657 		list_del(&s->delivery);
1658 	}
1659 
1660 	if (!s2)
1661 		return;
1662 
1663 	/*
1664 	 * Ensure that memories for slots built on other CPUs is observed.
1665 	 */
1666 	smp_rmb();
1667 	wp = (s2->dlvry_queue_slot + 1) % HISI_SAS_QUEUE_SLOTS;
1668 
1669 	hisi_sas_write32(hisi_hba, DLVRY_Q_0_WR_PTR + (dlvry_queue * 0x14), wp);
1670 }
1671 
prep_prd_sge_v2_hw(struct hisi_hba * hisi_hba,struct hisi_sas_slot * slot,struct hisi_sas_cmd_hdr * hdr,struct scatterlist * scatter,int n_elem)1672 static void prep_prd_sge_v2_hw(struct hisi_hba *hisi_hba,
1673 			      struct hisi_sas_slot *slot,
1674 			      struct hisi_sas_cmd_hdr *hdr,
1675 			      struct scatterlist *scatter,
1676 			      int n_elem)
1677 {
1678 	struct hisi_sas_sge_page *sge_page = hisi_sas_sge_addr_mem(slot);
1679 	struct scatterlist *sg;
1680 	int i;
1681 
1682 	for_each_sg(scatter, sg, n_elem, i) {
1683 		struct hisi_sas_sge *entry = &sge_page->sge[i];
1684 
1685 		entry->addr = cpu_to_le64(sg_dma_address(sg));
1686 		entry->page_ctrl_0 = entry->page_ctrl_1 = 0;
1687 		entry->data_len = cpu_to_le32(sg_dma_len(sg));
1688 		entry->data_off = 0;
1689 	}
1690 
1691 	hdr->prd_table_addr = cpu_to_le64(hisi_sas_sge_addr_dma(slot));
1692 
1693 	hdr->sg_len = cpu_to_le32(n_elem << CMD_HDR_DATA_SGL_LEN_OFF);
1694 }
1695 
prep_smp_v2_hw(struct hisi_hba * hisi_hba,struct hisi_sas_slot * slot)1696 static void prep_smp_v2_hw(struct hisi_hba *hisi_hba,
1697 			  struct hisi_sas_slot *slot)
1698 {
1699 	struct sas_task *task = slot->task;
1700 	struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
1701 	struct domain_device *device = task->dev;
1702 	struct hisi_sas_port *port = slot->port;
1703 	struct scatterlist *sg_req;
1704 	struct hisi_sas_device *sas_dev = device->lldd_dev;
1705 	dma_addr_t req_dma_addr;
1706 	unsigned int req_len;
1707 
1708 	/* req */
1709 	sg_req = &task->smp_task.smp_req;
1710 	req_dma_addr = sg_dma_address(sg_req);
1711 	req_len = sg_dma_len(&task->smp_task.smp_req);
1712 
1713 	/* create header */
1714 	/* dw0 */
1715 	hdr->dw0 = cpu_to_le32((port->id << CMD_HDR_PORT_OFF) |
1716 			       (1 << CMD_HDR_PRIORITY_OFF) | /* high pri */
1717 			       (2 << CMD_HDR_CMD_OFF)); /* smp */
1718 
1719 	/* map itct entry */
1720 	hdr->dw1 = cpu_to_le32((sas_dev->device_id << CMD_HDR_DEV_ID_OFF) |
1721 			       (1 << CMD_HDR_FRAME_TYPE_OFF) |
1722 			       (DIR_NO_DATA << CMD_HDR_DIR_OFF));
1723 
1724 	/* dw2 */
1725 	hdr->dw2 = cpu_to_le32((((req_len - 4) / 4) << CMD_HDR_CFL_OFF) |
1726 			       (HISI_SAS_MAX_SMP_RESP_SZ / 4 <<
1727 			       CMD_HDR_MRFL_OFF));
1728 
1729 	hdr->transfer_tags = cpu_to_le32(slot->idx << CMD_HDR_IPTT_OFF);
1730 
1731 	hdr->cmd_table_addr = cpu_to_le64(req_dma_addr);
1732 	hdr->sts_buffer_addr = cpu_to_le64(hisi_sas_status_buf_addr_dma(slot));
1733 }
1734 
prep_ssp_v2_hw(struct hisi_hba * hisi_hba,struct hisi_sas_slot * slot)1735 static void prep_ssp_v2_hw(struct hisi_hba *hisi_hba,
1736 			  struct hisi_sas_slot *slot)
1737 {
1738 	struct sas_task *task = slot->task;
1739 	struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
1740 	struct domain_device *device = task->dev;
1741 	struct hisi_sas_device *sas_dev = device->lldd_dev;
1742 	struct hisi_sas_port *port = slot->port;
1743 	struct sas_ssp_task *ssp_task = &task->ssp_task;
1744 	struct scsi_cmnd *scsi_cmnd = ssp_task->cmd;
1745 	struct sas_tmf_task *tmf = slot->tmf;
1746 	int has_data = 0, priority = !!tmf;
1747 	u8 *buf_cmd;
1748 	u32 dw1 = 0, dw2 = 0;
1749 
1750 	hdr->dw0 = cpu_to_le32((1 << CMD_HDR_RESP_REPORT_OFF) |
1751 			       (2 << CMD_HDR_TLR_CTRL_OFF) |
1752 			       (port->id << CMD_HDR_PORT_OFF) |
1753 			       (priority << CMD_HDR_PRIORITY_OFF) |
1754 			       (1 << CMD_HDR_CMD_OFF)); /* ssp */
1755 
1756 	dw1 = 1 << CMD_HDR_VDTL_OFF;
1757 	if (tmf) {
1758 		dw1 |= 2 << CMD_HDR_FRAME_TYPE_OFF;
1759 		dw1 |= DIR_NO_DATA << CMD_HDR_DIR_OFF;
1760 	} else {
1761 		dw1 |= 1 << CMD_HDR_FRAME_TYPE_OFF;
1762 		switch (scsi_cmnd->sc_data_direction) {
1763 		case DMA_TO_DEVICE:
1764 			has_data = 1;
1765 			dw1 |= DIR_TO_DEVICE << CMD_HDR_DIR_OFF;
1766 			break;
1767 		case DMA_FROM_DEVICE:
1768 			has_data = 1;
1769 			dw1 |= DIR_TO_INI << CMD_HDR_DIR_OFF;
1770 			break;
1771 		default:
1772 			dw1 &= ~CMD_HDR_DIR_MSK;
1773 		}
1774 	}
1775 
1776 	/* map itct entry */
1777 	dw1 |= sas_dev->device_id << CMD_HDR_DEV_ID_OFF;
1778 	hdr->dw1 = cpu_to_le32(dw1);
1779 
1780 	dw2 = (((sizeof(struct ssp_command_iu) + sizeof(struct ssp_frame_hdr)
1781 	      + 3) / 4) << CMD_HDR_CFL_OFF) |
1782 	      ((HISI_SAS_MAX_SSP_RESP_SZ / 4) << CMD_HDR_MRFL_OFF) |
1783 	      (2 << CMD_HDR_SG_MOD_OFF);
1784 	hdr->dw2 = cpu_to_le32(dw2);
1785 
1786 	hdr->transfer_tags = cpu_to_le32(slot->idx);
1787 
1788 	if (has_data)
1789 		prep_prd_sge_v2_hw(hisi_hba, slot, hdr, task->scatter,
1790 					slot->n_elem);
1791 
1792 	hdr->data_transfer_len = cpu_to_le32(task->total_xfer_len);
1793 	hdr->cmd_table_addr = cpu_to_le64(hisi_sas_cmd_hdr_addr_dma(slot));
1794 	hdr->sts_buffer_addr = cpu_to_le64(hisi_sas_status_buf_addr_dma(slot));
1795 
1796 	buf_cmd = hisi_sas_cmd_hdr_addr_mem(slot) +
1797 		sizeof(struct ssp_frame_hdr);
1798 
1799 	memcpy(buf_cmd, &task->ssp_task.LUN, 8);
1800 	if (!tmf) {
1801 		buf_cmd[9] = task->ssp_task.task_attr;
1802 		memcpy(buf_cmd + 12, task->ssp_task.cmd->cmnd,
1803 				task->ssp_task.cmd->cmd_len);
1804 	} else {
1805 		buf_cmd[10] = tmf->tmf;
1806 		switch (tmf->tmf) {
1807 		case TMF_ABORT_TASK:
1808 		case TMF_QUERY_TASK:
1809 			buf_cmd[12] =
1810 				(tmf->tag_of_task_to_be_managed >> 8) & 0xff;
1811 			buf_cmd[13] =
1812 				tmf->tag_of_task_to_be_managed & 0xff;
1813 			break;
1814 		default:
1815 			break;
1816 		}
1817 	}
1818 }
1819 
1820 #define TRANS_TX_ERR	0
1821 #define TRANS_RX_ERR	1
1822 #define DMA_TX_ERR		2
1823 #define SIPC_RX_ERR		3
1824 #define DMA_RX_ERR		4
1825 
1826 #define DMA_TX_ERR_OFF	0
1827 #define DMA_TX_ERR_MSK	(0xffff << DMA_TX_ERR_OFF)
1828 #define SIPC_RX_ERR_OFF	16
1829 #define SIPC_RX_ERR_MSK (0xffff << SIPC_RX_ERR_OFF)
1830 
parse_trans_tx_err_code_v2_hw(u32 err_msk)1831 static int parse_trans_tx_err_code_v2_hw(u32 err_msk)
1832 {
1833 	static const u8 trans_tx_err_code_prio[] = {
1834 		TRANS_TX_OPEN_FAIL_WITH_IT_NEXUS_LOSS,
1835 		TRANS_TX_ERR_PHY_NOT_ENABLE,
1836 		TRANS_TX_OPEN_CNX_ERR_WRONG_DESTINATION,
1837 		TRANS_TX_OPEN_CNX_ERR_ZONE_VIOLATION,
1838 		TRANS_TX_OPEN_CNX_ERR_BY_OTHER,
1839 		RESERVED0,
1840 		TRANS_TX_OPEN_CNX_ERR_AIP_TIMEOUT,
1841 		TRANS_TX_OPEN_CNX_ERR_STP_RESOURCES_BUSY,
1842 		TRANS_TX_OPEN_CNX_ERR_PROTOCOL_NOT_SUPPORTED,
1843 		TRANS_TX_OPEN_CNX_ERR_CONNECTION_RATE_NOT_SUPPORTED,
1844 		TRANS_TX_OPEN_CNX_ERR_BAD_DESTINATION,
1845 		TRANS_TX_OPEN_CNX_ERR_BREAK_RCVD,
1846 		TRANS_TX_OPEN_CNX_ERR_LOW_PHY_POWER,
1847 		TRANS_TX_OPEN_CNX_ERR_PATHWAY_BLOCKED,
1848 		TRANS_TX_OPEN_CNX_ERR_OPEN_TIMEOUT,
1849 		TRANS_TX_OPEN_CNX_ERR_NO_DESTINATION,
1850 		TRANS_TX_OPEN_RETRY_ERR_THRESHOLD_REACHED,
1851 		TRANS_TX_ERR_WITH_CLOSE_PHYDISALE,
1852 		TRANS_TX_ERR_WITH_CLOSE_DWS_TIMEOUT,
1853 		TRANS_TX_ERR_WITH_CLOSE_COMINIT,
1854 		TRANS_TX_ERR_WITH_BREAK_TIMEOUT,
1855 		TRANS_TX_ERR_WITH_BREAK_REQUEST,
1856 		TRANS_TX_ERR_WITH_BREAK_RECEVIED,
1857 		TRANS_TX_ERR_WITH_CLOSE_TIMEOUT,
1858 		TRANS_TX_ERR_WITH_CLOSE_NORMAL,
1859 		TRANS_TX_ERR_WITH_NAK_RECEVIED,
1860 		TRANS_TX_ERR_WITH_ACK_NAK_TIMEOUT,
1861 		TRANS_TX_ERR_WITH_CREDIT_TIMEOUT,
1862 		TRANS_TX_ERR_WITH_IPTT_CONFLICT,
1863 		TRANS_TX_ERR_WITH_OPEN_BY_DES_OR_OTHERS,
1864 		TRANS_TX_ERR_WITH_WAIT_RECV_TIMEOUT,
1865 	};
1866 	int index, i;
1867 
1868 	for (i = 0; i < ARRAY_SIZE(trans_tx_err_code_prio); i++) {
1869 		index = trans_tx_err_code_prio[i] - TRANS_TX_FAIL_BASE;
1870 		if (err_msk & (1 << index))
1871 			return trans_tx_err_code_prio[i];
1872 	}
1873 	return -1;
1874 }
1875 
parse_trans_rx_err_code_v2_hw(u32 err_msk)1876 static int parse_trans_rx_err_code_v2_hw(u32 err_msk)
1877 {
1878 	static const u8 trans_rx_err_code_prio[] = {
1879 		TRANS_RX_ERR_WITH_RXFRAME_CRC_ERR,
1880 		TRANS_RX_ERR_WITH_RXFIS_8B10B_DISP_ERR,
1881 		TRANS_RX_ERR_WITH_RXFRAME_HAVE_ERRPRM,
1882 		TRANS_RX_ERR_WITH_RXFIS_DECODE_ERROR,
1883 		TRANS_RX_ERR_WITH_RXFIS_CRC_ERR,
1884 		TRANS_RX_ERR_WITH_RXFRAME_LENGTH_OVERRUN,
1885 		TRANS_RX_ERR_WITH_RXFIS_RX_SYNCP,
1886 		TRANS_RX_ERR_WITH_LINK_BUF_OVERRUN,
1887 		TRANS_RX_ERR_WITH_CLOSE_PHY_DISABLE,
1888 		TRANS_RX_ERR_WITH_CLOSE_DWS_TIMEOUT,
1889 		TRANS_RX_ERR_WITH_CLOSE_COMINIT,
1890 		TRANS_RX_ERR_WITH_BREAK_TIMEOUT,
1891 		TRANS_RX_ERR_WITH_BREAK_REQUEST,
1892 		TRANS_RX_ERR_WITH_BREAK_RECEVIED,
1893 		RESERVED1,
1894 		TRANS_RX_ERR_WITH_CLOSE_NORMAL,
1895 		TRANS_RX_ERR_WITH_DATA_LEN0,
1896 		TRANS_RX_ERR_WITH_BAD_HASH,
1897 		TRANS_RX_XRDY_WLEN_ZERO_ERR,
1898 		TRANS_RX_SSP_FRM_LEN_ERR,
1899 		RESERVED2,
1900 		RESERVED3,
1901 		RESERVED4,
1902 		RESERVED5,
1903 		TRANS_RX_ERR_WITH_BAD_FRM_TYPE,
1904 		TRANS_RX_SMP_FRM_LEN_ERR,
1905 		TRANS_RX_SMP_RESP_TIMEOUT_ERR,
1906 		RESERVED6,
1907 		RESERVED7,
1908 		RESERVED8,
1909 		RESERVED9,
1910 		TRANS_RX_R_ERR,
1911 	};
1912 	int index, i;
1913 
1914 	for (i = 0; i < ARRAY_SIZE(trans_rx_err_code_prio); i++) {
1915 		index = trans_rx_err_code_prio[i] - TRANS_RX_FAIL_BASE;
1916 		if (err_msk & (1 << index))
1917 			return trans_rx_err_code_prio[i];
1918 	}
1919 	return -1;
1920 }
1921 
parse_dma_tx_err_code_v2_hw(u32 err_msk)1922 static int parse_dma_tx_err_code_v2_hw(u32 err_msk)
1923 {
1924 	static const u8 dma_tx_err_code_prio[] = {
1925 		DMA_TX_UNEXP_XFER_ERR,
1926 		DMA_TX_UNEXP_RETRANS_ERR,
1927 		DMA_TX_XFER_LEN_OVERFLOW,
1928 		DMA_TX_XFER_OFFSET_ERR,
1929 		DMA_TX_RAM_ECC_ERR,
1930 		DMA_TX_DIF_LEN_ALIGN_ERR,
1931 		DMA_TX_DIF_CRC_ERR,
1932 		DMA_TX_DIF_APP_ERR,
1933 		DMA_TX_DIF_RPP_ERR,
1934 		DMA_TX_DATA_SGL_OVERFLOW,
1935 		DMA_TX_DIF_SGL_OVERFLOW,
1936 	};
1937 	int index, i;
1938 
1939 	for (i = 0; i < ARRAY_SIZE(dma_tx_err_code_prio); i++) {
1940 		index = dma_tx_err_code_prio[i] - DMA_TX_ERR_BASE;
1941 		err_msk = err_msk & DMA_TX_ERR_MSK;
1942 		if (err_msk & (1 << index))
1943 			return dma_tx_err_code_prio[i];
1944 	}
1945 	return -1;
1946 }
1947 
parse_sipc_rx_err_code_v2_hw(u32 err_msk)1948 static int parse_sipc_rx_err_code_v2_hw(u32 err_msk)
1949 {
1950 	static const u8 sipc_rx_err_code_prio[] = {
1951 		SIPC_RX_FIS_STATUS_ERR_BIT_VLD,
1952 		SIPC_RX_PIO_WRSETUP_STATUS_DRQ_ERR,
1953 		SIPC_RX_FIS_STATUS_BSY_BIT_ERR,
1954 		SIPC_RX_WRSETUP_LEN_ODD_ERR,
1955 		SIPC_RX_WRSETUP_LEN_ZERO_ERR,
1956 		SIPC_RX_WRDATA_LEN_NOT_MATCH_ERR,
1957 		SIPC_RX_NCQ_WRSETUP_OFFSET_ERR,
1958 		SIPC_RX_NCQ_WRSETUP_AUTO_ACTIVE_ERR,
1959 		SIPC_RX_SATA_UNEXP_FIS_ERR,
1960 		SIPC_RX_WRSETUP_ESTATUS_ERR,
1961 		SIPC_RX_DATA_UNDERFLOW_ERR,
1962 	};
1963 	int index, i;
1964 
1965 	for (i = 0; i < ARRAY_SIZE(sipc_rx_err_code_prio); i++) {
1966 		index = sipc_rx_err_code_prio[i] - SIPC_RX_ERR_BASE;
1967 		err_msk = err_msk & SIPC_RX_ERR_MSK;
1968 		if (err_msk & (1 << (index + 0x10)))
1969 			return sipc_rx_err_code_prio[i];
1970 	}
1971 	return -1;
1972 }
1973 
parse_dma_rx_err_code_v2_hw(u32 err_msk)1974 static int parse_dma_rx_err_code_v2_hw(u32 err_msk)
1975 {
1976 	static const u8 dma_rx_err_code_prio[] = {
1977 		DMA_RX_UNKNOWN_FRM_ERR,
1978 		DMA_RX_DATA_LEN_OVERFLOW,
1979 		DMA_RX_DATA_LEN_UNDERFLOW,
1980 		DMA_RX_DATA_OFFSET_ERR,
1981 		RESERVED10,
1982 		DMA_RX_SATA_FRAME_TYPE_ERR,
1983 		DMA_RX_RESP_BUF_OVERFLOW,
1984 		DMA_RX_UNEXP_RETRANS_RESP_ERR,
1985 		DMA_RX_UNEXP_NORM_RESP_ERR,
1986 		DMA_RX_UNEXP_RDFRAME_ERR,
1987 		DMA_RX_PIO_DATA_LEN_ERR,
1988 		DMA_RX_RDSETUP_STATUS_ERR,
1989 		DMA_RX_RDSETUP_STATUS_DRQ_ERR,
1990 		DMA_RX_RDSETUP_STATUS_BSY_ERR,
1991 		DMA_RX_RDSETUP_LEN_ODD_ERR,
1992 		DMA_RX_RDSETUP_LEN_ZERO_ERR,
1993 		DMA_RX_RDSETUP_LEN_OVER_ERR,
1994 		DMA_RX_RDSETUP_OFFSET_ERR,
1995 		DMA_RX_RDSETUP_ACTIVE_ERR,
1996 		DMA_RX_RDSETUP_ESTATUS_ERR,
1997 		DMA_RX_RAM_ECC_ERR,
1998 		DMA_RX_DIF_CRC_ERR,
1999 		DMA_RX_DIF_APP_ERR,
2000 		DMA_RX_DIF_RPP_ERR,
2001 		DMA_RX_DATA_SGL_OVERFLOW,
2002 		DMA_RX_DIF_SGL_OVERFLOW,
2003 	};
2004 	int index, i;
2005 
2006 	for (i = 0; i < ARRAY_SIZE(dma_rx_err_code_prio); i++) {
2007 		index = dma_rx_err_code_prio[i] - DMA_RX_ERR_BASE;
2008 		if (err_msk & (1 << index))
2009 			return dma_rx_err_code_prio[i];
2010 	}
2011 	return -1;
2012 }
2013 
2014 /* by default, task resp is complete */
slot_err_v2_hw(struct hisi_hba * hisi_hba,struct sas_task * task,struct hisi_sas_slot * slot,int err_phase)2015 static void slot_err_v2_hw(struct hisi_hba *hisi_hba,
2016 			   struct sas_task *task,
2017 			   struct hisi_sas_slot *slot,
2018 			   int err_phase)
2019 {
2020 	struct task_status_struct *ts = &task->task_status;
2021 	struct hisi_sas_err_record_v2 *err_record =
2022 			hisi_sas_status_buf_addr_mem(slot);
2023 	u32 trans_tx_fail_type = le32_to_cpu(err_record->trans_tx_fail_type);
2024 	u32 trans_rx_fail_type = le32_to_cpu(err_record->trans_rx_fail_type);
2025 	u16 dma_tx_err_type = le16_to_cpu(err_record->dma_tx_err_type);
2026 	u16 sipc_rx_err_type = le16_to_cpu(err_record->sipc_rx_err_type);
2027 	u32 dma_rx_err_type = le32_to_cpu(err_record->dma_rx_err_type);
2028 	struct hisi_sas_complete_v2_hdr *complete_queue =
2029 			hisi_hba->complete_hdr[slot->cmplt_queue];
2030 	struct hisi_sas_complete_v2_hdr *complete_hdr =
2031 			&complete_queue[slot->cmplt_queue_slot];
2032 	u32 dw0 = le32_to_cpu(complete_hdr->dw0);
2033 	int error = -1;
2034 
2035 	if (err_phase == 1) {
2036 		/* error in TX phase, the priority of error is: DW2 > DW0 */
2037 		error = parse_dma_tx_err_code_v2_hw(dma_tx_err_type);
2038 		if (error == -1)
2039 			error = parse_trans_tx_err_code_v2_hw(
2040 					trans_tx_fail_type);
2041 	} else if (err_phase == 2) {
2042 		/* error in RX phase, the priority is: DW1 > DW3 > DW2 */
2043 		error = parse_trans_rx_err_code_v2_hw(trans_rx_fail_type);
2044 		if (error == -1) {
2045 			error = parse_dma_rx_err_code_v2_hw(
2046 					dma_rx_err_type);
2047 			if (error == -1)
2048 				error = parse_sipc_rx_err_code_v2_hw(
2049 						sipc_rx_err_type);
2050 		}
2051 	}
2052 
2053 	switch (task->task_proto) {
2054 	case SAS_PROTOCOL_SSP:
2055 	{
2056 		switch (error) {
2057 		case TRANS_TX_OPEN_CNX_ERR_NO_DESTINATION:
2058 		{
2059 			ts->stat = SAS_OPEN_REJECT;
2060 			ts->open_rej_reason = SAS_OREJ_NO_DEST;
2061 			break;
2062 		}
2063 		case TRANS_TX_OPEN_CNX_ERR_PROTOCOL_NOT_SUPPORTED:
2064 		{
2065 			ts->stat = SAS_OPEN_REJECT;
2066 			ts->open_rej_reason = SAS_OREJ_EPROTO;
2067 			break;
2068 		}
2069 		case TRANS_TX_OPEN_CNX_ERR_CONNECTION_RATE_NOT_SUPPORTED:
2070 		{
2071 			ts->stat = SAS_OPEN_REJECT;
2072 			ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2073 			break;
2074 		}
2075 		case TRANS_TX_OPEN_CNX_ERR_BAD_DESTINATION:
2076 		{
2077 			ts->stat = SAS_OPEN_REJECT;
2078 			ts->open_rej_reason = SAS_OREJ_BAD_DEST;
2079 			break;
2080 		}
2081 		case TRANS_TX_OPEN_CNX_ERR_WRONG_DESTINATION:
2082 		{
2083 			ts->stat = SAS_OPEN_REJECT;
2084 			ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2085 			break;
2086 		}
2087 		case DMA_RX_UNEXP_NORM_RESP_ERR:
2088 		case TRANS_TX_OPEN_CNX_ERR_ZONE_VIOLATION:
2089 		case DMA_RX_RESP_BUF_OVERFLOW:
2090 		{
2091 			ts->stat = SAS_OPEN_REJECT;
2092 			ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2093 			break;
2094 		}
2095 		case TRANS_TX_OPEN_CNX_ERR_LOW_PHY_POWER:
2096 		{
2097 			/* not sure */
2098 			ts->stat = SAS_DEV_NO_RESPONSE;
2099 			break;
2100 		}
2101 		case DMA_RX_DATA_LEN_OVERFLOW:
2102 		{
2103 			ts->stat = SAS_DATA_OVERRUN;
2104 			ts->residual = 0;
2105 			break;
2106 		}
2107 		case DMA_RX_DATA_LEN_UNDERFLOW:
2108 		{
2109 			ts->residual = trans_tx_fail_type;
2110 			ts->stat = SAS_DATA_UNDERRUN;
2111 			break;
2112 		}
2113 		case TRANS_TX_OPEN_FAIL_WITH_IT_NEXUS_LOSS:
2114 		case TRANS_TX_ERR_PHY_NOT_ENABLE:
2115 		case TRANS_TX_OPEN_CNX_ERR_BY_OTHER:
2116 		case TRANS_TX_OPEN_CNX_ERR_AIP_TIMEOUT:
2117 		case TRANS_TX_OPEN_CNX_ERR_BREAK_RCVD:
2118 		case TRANS_TX_OPEN_CNX_ERR_PATHWAY_BLOCKED:
2119 		case TRANS_TX_OPEN_CNX_ERR_OPEN_TIMEOUT:
2120 		case TRANS_TX_OPEN_RETRY_ERR_THRESHOLD_REACHED:
2121 		case TRANS_TX_ERR_WITH_BREAK_TIMEOUT:
2122 		case TRANS_TX_ERR_WITH_BREAK_REQUEST:
2123 		case TRANS_TX_ERR_WITH_BREAK_RECEVIED:
2124 		case TRANS_TX_ERR_WITH_CLOSE_TIMEOUT:
2125 		case TRANS_TX_ERR_WITH_CLOSE_NORMAL:
2126 		case TRANS_TX_ERR_WITH_CLOSE_PHYDISALE:
2127 		case TRANS_TX_ERR_WITH_CLOSE_DWS_TIMEOUT:
2128 		case TRANS_TX_ERR_WITH_CLOSE_COMINIT:
2129 		case TRANS_TX_ERR_WITH_NAK_RECEVIED:
2130 		case TRANS_TX_ERR_WITH_ACK_NAK_TIMEOUT:
2131 		case TRANS_TX_ERR_WITH_CREDIT_TIMEOUT:
2132 		case TRANS_TX_ERR_WITH_IPTT_CONFLICT:
2133 		case TRANS_RX_ERR_WITH_RXFRAME_CRC_ERR:
2134 		case TRANS_RX_ERR_WITH_RXFIS_8B10B_DISP_ERR:
2135 		case TRANS_RX_ERR_WITH_RXFRAME_HAVE_ERRPRM:
2136 		case TRANS_RX_ERR_WITH_LINK_BUF_OVERRUN:
2137 		case TRANS_RX_ERR_WITH_BREAK_TIMEOUT:
2138 		case TRANS_RX_ERR_WITH_BREAK_REQUEST:
2139 		case TRANS_RX_ERR_WITH_BREAK_RECEVIED:
2140 		case TRANS_RX_ERR_WITH_CLOSE_NORMAL:
2141 		case TRANS_RX_ERR_WITH_CLOSE_DWS_TIMEOUT:
2142 		case TRANS_RX_ERR_WITH_CLOSE_COMINIT:
2143 		case TRANS_TX_ERR_FRAME_TXED:
2144 		case TRANS_RX_ERR_WITH_CLOSE_PHY_DISABLE:
2145 		case TRANS_RX_ERR_WITH_DATA_LEN0:
2146 		case TRANS_RX_ERR_WITH_BAD_HASH:
2147 		case TRANS_RX_XRDY_WLEN_ZERO_ERR:
2148 		case TRANS_RX_SSP_FRM_LEN_ERR:
2149 		case TRANS_RX_ERR_WITH_BAD_FRM_TYPE:
2150 		case DMA_TX_DATA_SGL_OVERFLOW:
2151 		case DMA_TX_UNEXP_XFER_ERR:
2152 		case DMA_TX_UNEXP_RETRANS_ERR:
2153 		case DMA_TX_XFER_LEN_OVERFLOW:
2154 		case DMA_TX_XFER_OFFSET_ERR:
2155 		case SIPC_RX_DATA_UNDERFLOW_ERR:
2156 		case DMA_RX_DATA_SGL_OVERFLOW:
2157 		case DMA_RX_DATA_OFFSET_ERR:
2158 		case DMA_RX_RDSETUP_LEN_ODD_ERR:
2159 		case DMA_RX_RDSETUP_LEN_ZERO_ERR:
2160 		case DMA_RX_RDSETUP_LEN_OVER_ERR:
2161 		case DMA_RX_SATA_FRAME_TYPE_ERR:
2162 		case DMA_RX_UNKNOWN_FRM_ERR:
2163 		{
2164 			/* This will request a retry */
2165 			ts->stat = SAS_QUEUE_FULL;
2166 			slot->abort = 1;
2167 			break;
2168 		}
2169 		default:
2170 			break;
2171 		}
2172 	}
2173 		break;
2174 	case SAS_PROTOCOL_SMP:
2175 		ts->stat = SAS_SAM_STAT_CHECK_CONDITION;
2176 		break;
2177 
2178 	case SAS_PROTOCOL_SATA:
2179 	case SAS_PROTOCOL_STP:
2180 	case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
2181 	{
2182 		switch (error) {
2183 		case TRANS_TX_OPEN_CNX_ERR_NO_DESTINATION:
2184 		{
2185 			ts->stat = SAS_OPEN_REJECT;
2186 			ts->open_rej_reason = SAS_OREJ_NO_DEST;
2187 			break;
2188 		}
2189 		case TRANS_TX_OPEN_CNX_ERR_LOW_PHY_POWER:
2190 		{
2191 			ts->resp = SAS_TASK_UNDELIVERED;
2192 			ts->stat = SAS_DEV_NO_RESPONSE;
2193 			break;
2194 		}
2195 		case TRANS_TX_OPEN_CNX_ERR_PROTOCOL_NOT_SUPPORTED:
2196 		{
2197 			ts->stat = SAS_OPEN_REJECT;
2198 			ts->open_rej_reason = SAS_OREJ_EPROTO;
2199 			break;
2200 		}
2201 		case TRANS_TX_OPEN_CNX_ERR_CONNECTION_RATE_NOT_SUPPORTED:
2202 		{
2203 			ts->stat = SAS_OPEN_REJECT;
2204 			ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2205 			break;
2206 		}
2207 		case TRANS_TX_OPEN_CNX_ERR_BAD_DESTINATION:
2208 		{
2209 			ts->stat = SAS_OPEN_REJECT;
2210 			ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2211 			break;
2212 		}
2213 		case TRANS_TX_OPEN_CNX_ERR_WRONG_DESTINATION:
2214 		{
2215 			ts->stat = SAS_OPEN_REJECT;
2216 			ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2217 			break;
2218 		}
2219 		case DMA_RX_RESP_BUF_OVERFLOW:
2220 		case DMA_RX_UNEXP_NORM_RESP_ERR:
2221 		case TRANS_TX_OPEN_CNX_ERR_ZONE_VIOLATION:
2222 		{
2223 			ts->stat = SAS_OPEN_REJECT;
2224 			ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2225 			break;
2226 		}
2227 		case DMA_RX_DATA_LEN_OVERFLOW:
2228 		{
2229 			ts->stat = SAS_DATA_OVERRUN;
2230 			ts->residual = 0;
2231 			break;
2232 		}
2233 		case DMA_RX_DATA_LEN_UNDERFLOW:
2234 		{
2235 			ts->residual = trans_tx_fail_type;
2236 			ts->stat = SAS_DATA_UNDERRUN;
2237 			break;
2238 		}
2239 		case TRANS_TX_OPEN_FAIL_WITH_IT_NEXUS_LOSS:
2240 		case TRANS_TX_ERR_PHY_NOT_ENABLE:
2241 		case TRANS_TX_OPEN_CNX_ERR_BY_OTHER:
2242 		case TRANS_TX_OPEN_CNX_ERR_AIP_TIMEOUT:
2243 		case TRANS_TX_OPEN_CNX_ERR_BREAK_RCVD:
2244 		case TRANS_TX_OPEN_CNX_ERR_PATHWAY_BLOCKED:
2245 		case TRANS_TX_OPEN_CNX_ERR_OPEN_TIMEOUT:
2246 		case TRANS_TX_OPEN_RETRY_ERR_THRESHOLD_REACHED:
2247 		case TRANS_TX_ERR_WITH_BREAK_TIMEOUT:
2248 		case TRANS_TX_ERR_WITH_BREAK_REQUEST:
2249 		case TRANS_TX_ERR_WITH_BREAK_RECEVIED:
2250 		case TRANS_TX_ERR_WITH_CLOSE_TIMEOUT:
2251 		case TRANS_TX_ERR_WITH_CLOSE_NORMAL:
2252 		case TRANS_TX_ERR_WITH_CLOSE_PHYDISALE:
2253 		case TRANS_TX_ERR_WITH_CLOSE_DWS_TIMEOUT:
2254 		case TRANS_TX_ERR_WITH_CLOSE_COMINIT:
2255 		case TRANS_TX_ERR_WITH_ACK_NAK_TIMEOUT:
2256 		case TRANS_TX_ERR_WITH_CREDIT_TIMEOUT:
2257 		case TRANS_TX_ERR_WITH_OPEN_BY_DES_OR_OTHERS:
2258 		case TRANS_TX_ERR_WITH_WAIT_RECV_TIMEOUT:
2259 		case TRANS_RX_ERR_WITH_RXFRAME_HAVE_ERRPRM:
2260 		case TRANS_RX_ERR_WITH_RXFIS_8B10B_DISP_ERR:
2261 		case TRANS_RX_ERR_WITH_RXFIS_DECODE_ERROR:
2262 		case TRANS_RX_ERR_WITH_RXFIS_CRC_ERR:
2263 		case TRANS_RX_ERR_WITH_RXFRAME_LENGTH_OVERRUN:
2264 		case TRANS_RX_ERR_WITH_RXFIS_RX_SYNCP:
2265 		case TRANS_RX_ERR_WITH_LINK_BUF_OVERRUN:
2266 		case TRANS_RX_ERR_WITH_BREAK_TIMEOUT:
2267 		case TRANS_RX_ERR_WITH_BREAK_REQUEST:
2268 		case TRANS_RX_ERR_WITH_BREAK_RECEVIED:
2269 		case TRANS_RX_ERR_WITH_CLOSE_NORMAL:
2270 		case TRANS_RX_ERR_WITH_CLOSE_PHY_DISABLE:
2271 		case TRANS_RX_ERR_WITH_CLOSE_DWS_TIMEOUT:
2272 		case TRANS_RX_ERR_WITH_CLOSE_COMINIT:
2273 		case TRANS_RX_ERR_WITH_DATA_LEN0:
2274 		case TRANS_RX_ERR_WITH_BAD_HASH:
2275 		case TRANS_RX_XRDY_WLEN_ZERO_ERR:
2276 		case TRANS_RX_ERR_WITH_BAD_FRM_TYPE:
2277 		case DMA_TX_DATA_SGL_OVERFLOW:
2278 		case DMA_TX_UNEXP_XFER_ERR:
2279 		case DMA_TX_UNEXP_RETRANS_ERR:
2280 		case DMA_TX_XFER_LEN_OVERFLOW:
2281 		case DMA_TX_XFER_OFFSET_ERR:
2282 		case SIPC_RX_FIS_STATUS_ERR_BIT_VLD:
2283 		case SIPC_RX_PIO_WRSETUP_STATUS_DRQ_ERR:
2284 		case SIPC_RX_FIS_STATUS_BSY_BIT_ERR:
2285 		case SIPC_RX_WRSETUP_LEN_ODD_ERR:
2286 		case SIPC_RX_WRSETUP_LEN_ZERO_ERR:
2287 		case SIPC_RX_WRDATA_LEN_NOT_MATCH_ERR:
2288 		case SIPC_RX_SATA_UNEXP_FIS_ERR:
2289 		case DMA_RX_DATA_SGL_OVERFLOW:
2290 		case DMA_RX_DATA_OFFSET_ERR:
2291 		case DMA_RX_SATA_FRAME_TYPE_ERR:
2292 		case DMA_RX_UNEXP_RDFRAME_ERR:
2293 		case DMA_RX_PIO_DATA_LEN_ERR:
2294 		case DMA_RX_RDSETUP_STATUS_ERR:
2295 		case DMA_RX_RDSETUP_STATUS_DRQ_ERR:
2296 		case DMA_RX_RDSETUP_STATUS_BSY_ERR:
2297 		case DMA_RX_RDSETUP_LEN_ODD_ERR:
2298 		case DMA_RX_RDSETUP_LEN_ZERO_ERR:
2299 		case DMA_RX_RDSETUP_LEN_OVER_ERR:
2300 		case DMA_RX_RDSETUP_OFFSET_ERR:
2301 		case DMA_RX_RDSETUP_ACTIVE_ERR:
2302 		case DMA_RX_RDSETUP_ESTATUS_ERR:
2303 		case DMA_RX_UNKNOWN_FRM_ERR:
2304 		case TRANS_RX_SSP_FRM_LEN_ERR:
2305 		case TRANS_TX_OPEN_CNX_ERR_STP_RESOURCES_BUSY:
2306 		{
2307 			slot->abort = 1;
2308 			ts->stat = SAS_PHY_DOWN;
2309 			break;
2310 		}
2311 		default:
2312 		{
2313 			ts->stat = SAS_PROTO_RESPONSE;
2314 			break;
2315 		}
2316 		}
2317 		if (dw0 & CMPLT_HDR_RSPNS_XFRD_MSK)
2318 			hisi_sas_sata_done(task, slot);
2319 	}
2320 		break;
2321 	default:
2322 		break;
2323 	}
2324 }
2325 
slot_complete_v2_hw(struct hisi_hba * hisi_hba,struct hisi_sas_slot * slot)2326 static void slot_complete_v2_hw(struct hisi_hba *hisi_hba,
2327 				struct hisi_sas_slot *slot)
2328 {
2329 	struct sas_task *task = slot->task;
2330 	struct hisi_sas_device *sas_dev;
2331 	struct device *dev = hisi_hba->dev;
2332 	struct task_status_struct *ts;
2333 	struct domain_device *device;
2334 	struct sas_ha_struct *ha;
2335 	struct hisi_sas_complete_v2_hdr *complete_queue =
2336 			hisi_hba->complete_hdr[slot->cmplt_queue];
2337 	struct hisi_sas_complete_v2_hdr *complete_hdr =
2338 			&complete_queue[slot->cmplt_queue_slot];
2339 	unsigned long flags;
2340 	bool is_internal = slot->is_internal;
2341 	u32 dw0;
2342 
2343 	if (unlikely(!task || !task->lldd_task || !task->dev))
2344 		return;
2345 
2346 	ts = &task->task_status;
2347 	device = task->dev;
2348 	ha = device->port->ha;
2349 	sas_dev = device->lldd_dev;
2350 
2351 	spin_lock_irqsave(&task->task_state_lock, flags);
2352 	task->task_state_flags &= ~SAS_TASK_STATE_PENDING;
2353 	spin_unlock_irqrestore(&task->task_state_lock, flags);
2354 
2355 	memset(ts, 0, sizeof(*ts));
2356 	ts->resp = SAS_TASK_COMPLETE;
2357 
2358 	if (unlikely(!sas_dev)) {
2359 		dev_dbg(dev, "slot complete: port has no device\n");
2360 		ts->stat = SAS_PHY_DOWN;
2361 		goto out;
2362 	}
2363 
2364 	/* Use SAS+TMF status codes */
2365 	dw0 = le32_to_cpu(complete_hdr->dw0);
2366 	switch ((dw0 & CMPLT_HDR_ABORT_STAT_MSK) >>
2367 		CMPLT_HDR_ABORT_STAT_OFF) {
2368 	case STAT_IO_ABORTED:
2369 		/* this io has been aborted by abort command */
2370 		ts->stat = SAS_ABORTED_TASK;
2371 		goto out;
2372 	case STAT_IO_COMPLETE:
2373 		/* internal abort command complete */
2374 		ts->stat = TMF_RESP_FUNC_SUCC;
2375 		del_timer_sync(&slot->internal_abort_timer);
2376 		goto out;
2377 	case STAT_IO_NO_DEVICE:
2378 		ts->stat = TMF_RESP_FUNC_COMPLETE;
2379 		del_timer_sync(&slot->internal_abort_timer);
2380 		goto out;
2381 	case STAT_IO_NOT_VALID:
2382 		/* abort single io, controller don't find
2383 		 * the io need to abort
2384 		 */
2385 		ts->stat = TMF_RESP_FUNC_FAILED;
2386 		del_timer_sync(&slot->internal_abort_timer);
2387 		goto out;
2388 	default:
2389 		break;
2390 	}
2391 
2392 	if ((dw0 & CMPLT_HDR_ERX_MSK) && (!(dw0 & CMPLT_HDR_RSPNS_XFRD_MSK))) {
2393 		u32 err_phase = (dw0 & CMPLT_HDR_ERR_PHASE_MSK)
2394 				>> CMPLT_HDR_ERR_PHASE_OFF;
2395 		u32 *error_info = hisi_sas_status_buf_addr_mem(slot);
2396 
2397 		/* Analyse error happens on which phase TX or RX */
2398 		if (ERR_ON_TX_PHASE(err_phase))
2399 			slot_err_v2_hw(hisi_hba, task, slot, 1);
2400 		else if (ERR_ON_RX_PHASE(err_phase))
2401 			slot_err_v2_hw(hisi_hba, task, slot, 2);
2402 
2403 		if (ts->stat != SAS_DATA_UNDERRUN)
2404 			dev_info(dev, "erroneous completion iptt=%d task=%pK dev id=%d CQ hdr: 0x%x 0x%x 0x%x 0x%x Error info: 0x%x 0x%x 0x%x 0x%x\n",
2405 				 slot->idx, task, sas_dev->device_id,
2406 				 complete_hdr->dw0, complete_hdr->dw1,
2407 				 complete_hdr->act, complete_hdr->dw3,
2408 				 error_info[0], error_info[1],
2409 				 error_info[2], error_info[3]);
2410 
2411 		if (unlikely(slot->abort)) {
2412 			if (dev_is_sata(device) && task->ata_task.use_ncq)
2413 				sas_ata_device_link_abort(device, true);
2414 			else
2415 				sas_task_abort(task);
2416 
2417 			return;
2418 		}
2419 		goto out;
2420 	}
2421 
2422 	switch (task->task_proto) {
2423 	case SAS_PROTOCOL_SSP:
2424 	{
2425 		struct hisi_sas_status_buffer *status_buffer =
2426 				hisi_sas_status_buf_addr_mem(slot);
2427 		struct ssp_response_iu *iu = (struct ssp_response_iu *)
2428 				&status_buffer->iu[0];
2429 
2430 		sas_ssp_task_response(dev, task, iu);
2431 		break;
2432 	}
2433 	case SAS_PROTOCOL_SMP:
2434 	{
2435 		struct scatterlist *sg_resp = &task->smp_task.smp_resp;
2436 		void *to = page_address(sg_page(sg_resp));
2437 
2438 		ts->stat = SAS_SAM_STAT_GOOD;
2439 
2440 		memcpy(to + sg_resp->offset,
2441 		       hisi_sas_status_buf_addr_mem(slot) +
2442 		       sizeof(struct hisi_sas_err_record),
2443 		       sg_resp->length);
2444 		break;
2445 	}
2446 	case SAS_PROTOCOL_SATA:
2447 	case SAS_PROTOCOL_STP:
2448 	case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
2449 	{
2450 		ts->stat = SAS_SAM_STAT_GOOD;
2451 		if (dw0 & CMPLT_HDR_RSPNS_XFRD_MSK)
2452 			hisi_sas_sata_done(task, slot);
2453 		break;
2454 	}
2455 	default:
2456 		ts->stat = SAS_SAM_STAT_CHECK_CONDITION;
2457 		break;
2458 	}
2459 
2460 	if (!slot->port->port_attached) {
2461 		dev_warn(dev, "slot complete: port %d has removed\n",
2462 			slot->port->sas_port.id);
2463 		ts->stat = SAS_PHY_DOWN;
2464 	}
2465 
2466 out:
2467 	spin_lock_irqsave(&task->task_state_lock, flags);
2468 	if (task->task_state_flags & SAS_TASK_STATE_ABORTED) {
2469 		spin_unlock_irqrestore(&task->task_state_lock, flags);
2470 		dev_info(dev, "slot complete: task(%pK) aborted\n", task);
2471 		return;
2472 	}
2473 	task->task_state_flags |= SAS_TASK_STATE_DONE;
2474 	spin_unlock_irqrestore(&task->task_state_lock, flags);
2475 	hisi_sas_slot_task_free(hisi_hba, task, slot, true);
2476 
2477 	if (!is_internal && (task->task_proto != SAS_PROTOCOL_SMP)) {
2478 		spin_lock_irqsave(&device->done_lock, flags);
2479 		if (test_bit(SAS_HA_FROZEN, &ha->state)) {
2480 			spin_unlock_irqrestore(&device->done_lock, flags);
2481 			dev_info(dev, "slot complete: task(%pK) ignored\n",
2482 				 task);
2483 			return;
2484 		}
2485 		spin_unlock_irqrestore(&device->done_lock, flags);
2486 	}
2487 
2488 	if (task->task_done)
2489 		task->task_done(task);
2490 }
2491 
prep_ata_v2_hw(struct hisi_hba * hisi_hba,struct hisi_sas_slot * slot)2492 static void prep_ata_v2_hw(struct hisi_hba *hisi_hba,
2493 			  struct hisi_sas_slot *slot)
2494 {
2495 	struct sas_task *task = slot->task;
2496 	struct domain_device *device = task->dev;
2497 	struct domain_device *parent_dev = device->parent;
2498 	struct hisi_sas_device *sas_dev = device->lldd_dev;
2499 	struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
2500 	struct asd_sas_port *sas_port = device->port;
2501 	struct hisi_sas_port *port = to_hisi_sas_port(sas_port);
2502 	struct sas_ata_task *ata_task = &task->ata_task;
2503 	struct sas_tmf_task *tmf = slot->tmf;
2504 	u8 *buf_cmd;
2505 	int has_data = 0, hdr_tag = 0;
2506 	u32 dw0, dw1 = 0, dw2 = 0;
2507 
2508 	/* create header */
2509 	/* dw0 */
2510 	dw0 = port->id << CMD_HDR_PORT_OFF;
2511 	if (parent_dev && dev_is_expander(parent_dev->dev_type))
2512 		dw0 |= 3 << CMD_HDR_CMD_OFF;
2513 	else
2514 		dw0 |= 4 << CMD_HDR_CMD_OFF;
2515 
2516 	if (tmf && ata_task->force_phy) {
2517 		dw0 |= CMD_HDR_FORCE_PHY_MSK;
2518 		dw0 |= (1 << ata_task->force_phy_id) << CMD_HDR_PHY_ID_OFF;
2519 	}
2520 
2521 	hdr->dw0 = cpu_to_le32(dw0);
2522 
2523 	/* dw1 */
2524 	switch (task->data_dir) {
2525 	case DMA_TO_DEVICE:
2526 		has_data = 1;
2527 		dw1 |= DIR_TO_DEVICE << CMD_HDR_DIR_OFF;
2528 		break;
2529 	case DMA_FROM_DEVICE:
2530 		has_data = 1;
2531 		dw1 |= DIR_TO_INI << CMD_HDR_DIR_OFF;
2532 		break;
2533 	default:
2534 		dw1 &= ~CMD_HDR_DIR_MSK;
2535 	}
2536 
2537 	if ((task->ata_task.fis.command == ATA_CMD_DEV_RESET) &&
2538 			(task->ata_task.fis.control & ATA_SRST))
2539 		dw1 |= 1 << CMD_HDR_RESET_OFF;
2540 
2541 	dw1 |= (hisi_sas_get_ata_protocol(
2542 		&task->ata_task.fis, task->data_dir))
2543 		<< CMD_HDR_FRAME_TYPE_OFF;
2544 	dw1 |= sas_dev->device_id << CMD_HDR_DEV_ID_OFF;
2545 	hdr->dw1 = cpu_to_le32(dw1);
2546 
2547 	/* dw2 */
2548 	if (task->ata_task.use_ncq) {
2549 		struct ata_queued_cmd *qc = task->uldd_task;
2550 
2551 		hdr_tag = qc->tag;
2552 		task->ata_task.fis.sector_count |= (u8) (hdr_tag << 3);
2553 		dw2 |= hdr_tag << CMD_HDR_NCQ_TAG_OFF;
2554 	}
2555 
2556 	dw2 |= (HISI_SAS_MAX_STP_RESP_SZ / 4) << CMD_HDR_CFL_OFF |
2557 			2 << CMD_HDR_SG_MOD_OFF;
2558 	hdr->dw2 = cpu_to_le32(dw2);
2559 
2560 	/* dw3 */
2561 	hdr->transfer_tags = cpu_to_le32(slot->idx);
2562 
2563 	if (has_data)
2564 		prep_prd_sge_v2_hw(hisi_hba, slot, hdr, task->scatter,
2565 					slot->n_elem);
2566 
2567 	hdr->data_transfer_len = cpu_to_le32(task->total_xfer_len);
2568 	hdr->cmd_table_addr = cpu_to_le64(hisi_sas_cmd_hdr_addr_dma(slot));
2569 	hdr->sts_buffer_addr = cpu_to_le64(hisi_sas_status_buf_addr_dma(slot));
2570 
2571 	buf_cmd = hisi_sas_cmd_hdr_addr_mem(slot);
2572 
2573 	if (likely(!task->ata_task.device_control_reg_update))
2574 		task->ata_task.fis.flags |= 0x80; /* C=1: update ATA cmd reg */
2575 	/* fill in command FIS */
2576 	memcpy(buf_cmd, &task->ata_task.fis, sizeof(struct host_to_dev_fis));
2577 }
2578 
hisi_sas_internal_abort_quirk_timeout(struct timer_list * t)2579 static void hisi_sas_internal_abort_quirk_timeout(struct timer_list *t)
2580 {
2581 	struct hisi_sas_slot *slot = from_timer(slot, t, internal_abort_timer);
2582 	struct hisi_sas_port *port = slot->port;
2583 	struct asd_sas_port *asd_sas_port;
2584 	struct asd_sas_phy *sas_phy;
2585 
2586 	if (!port)
2587 		return;
2588 
2589 	asd_sas_port = &port->sas_port;
2590 
2591 	/* Kick the hardware - send break command */
2592 	list_for_each_entry(sas_phy, &asd_sas_port->phy_list, port_phy_el) {
2593 		struct hisi_sas_phy *phy = sas_phy->lldd_phy;
2594 		struct hisi_hba *hisi_hba = phy->hisi_hba;
2595 		int phy_no = sas_phy->id;
2596 		u32 link_dfx2;
2597 
2598 		link_dfx2 = hisi_sas_phy_read32(hisi_hba, phy_no, LINK_DFX2);
2599 		if ((link_dfx2 == LINK_DFX2_RCVR_HOLD_STS_MSK) ||
2600 		    (link_dfx2 & LINK_DFX2_SEND_HOLD_STS_MSK)) {
2601 			u32 txid_auto;
2602 
2603 			txid_auto = hisi_sas_phy_read32(hisi_hba, phy_no,
2604 							TXID_AUTO);
2605 			txid_auto |= TXID_AUTO_CTB_MSK;
2606 			hisi_sas_phy_write32(hisi_hba, phy_no, TXID_AUTO,
2607 					     txid_auto);
2608 			return;
2609 		}
2610 	}
2611 }
2612 
prep_abort_v2_hw(struct hisi_hba * hisi_hba,struct hisi_sas_slot * slot)2613 static void prep_abort_v2_hw(struct hisi_hba *hisi_hba,
2614 			     struct hisi_sas_slot *slot)
2615 {
2616 	struct sas_task *task = slot->task;
2617 	struct sas_internal_abort_task *abort = &task->abort_task;
2618 	struct domain_device *dev = task->dev;
2619 	struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
2620 	struct hisi_sas_port *port = slot->port;
2621 	struct timer_list *timer = &slot->internal_abort_timer;
2622 	struct hisi_sas_device *sas_dev = dev->lldd_dev;
2623 
2624 	/* setup the quirk timer */
2625 	timer_setup(timer, hisi_sas_internal_abort_quirk_timeout, 0);
2626 	/* Set the timeout to 10ms less than internal abort timeout */
2627 	mod_timer(timer, jiffies + msecs_to_jiffies(100));
2628 
2629 	/* dw0 */
2630 	hdr->dw0 = cpu_to_le32((5 << CMD_HDR_CMD_OFF) | /*abort*/
2631 			       (port->id << CMD_HDR_PORT_OFF) |
2632 			       (dev_is_sata(dev) <<
2633 				CMD_HDR_ABORT_DEVICE_TYPE_OFF) |
2634 			       (abort->type << CMD_HDR_ABORT_FLAG_OFF));
2635 
2636 	/* dw1 */
2637 	hdr->dw1 = cpu_to_le32(sas_dev->device_id << CMD_HDR_DEV_ID_OFF);
2638 
2639 	/* dw7 */
2640 	hdr->dw7 = cpu_to_le32(abort->tag << CMD_HDR_ABORT_IPTT_OFF);
2641 	hdr->transfer_tags = cpu_to_le32(slot->idx);
2642 }
2643 
phy_up_v2_hw(int phy_no,struct hisi_hba * hisi_hba)2644 static int phy_up_v2_hw(int phy_no, struct hisi_hba *hisi_hba)
2645 {
2646 	int i, res = IRQ_HANDLED;
2647 	u32 port_id, link_rate;
2648 	struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
2649 	struct asd_sas_phy *sas_phy = &phy->sas_phy;
2650 	struct device *dev = hisi_hba->dev;
2651 	u32 *frame_rcvd = (u32 *)sas_phy->frame_rcvd;
2652 	struct sas_identify_frame *id = (struct sas_identify_frame *)frame_rcvd;
2653 
2654 	hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_PHY_ENA_MSK, 1);
2655 
2656 	if (is_sata_phy_v2_hw(hisi_hba, phy_no))
2657 		goto end;
2658 
2659 	del_timer(&phy->timer);
2660 
2661 	if (phy_no == 8) {
2662 		u32 port_state = hisi_sas_read32(hisi_hba, PORT_STATE);
2663 
2664 		port_id = (port_state & PORT_STATE_PHY8_PORT_NUM_MSK) >>
2665 			  PORT_STATE_PHY8_PORT_NUM_OFF;
2666 		link_rate = (port_state & PORT_STATE_PHY8_CONN_RATE_MSK) >>
2667 			    PORT_STATE_PHY8_CONN_RATE_OFF;
2668 	} else {
2669 		port_id = hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA);
2670 		port_id = (port_id >> (4 * phy_no)) & 0xf;
2671 		link_rate = hisi_sas_read32(hisi_hba, PHY_CONN_RATE);
2672 		link_rate = (link_rate >> (phy_no * 4)) & 0xf;
2673 	}
2674 
2675 	if (port_id == 0xf) {
2676 		dev_err(dev, "phyup: phy%d invalid portid\n", phy_no);
2677 		res = IRQ_NONE;
2678 		goto end;
2679 	}
2680 
2681 	for (i = 0; i < 6; i++) {
2682 		u32 idaf = hisi_sas_phy_read32(hisi_hba, phy_no,
2683 					       RX_IDAF_DWORD0 + (i * 4));
2684 		frame_rcvd[i] = __swab32(idaf);
2685 	}
2686 
2687 	sas_phy->linkrate = link_rate;
2688 	sas_phy->oob_mode = SAS_OOB_MODE;
2689 	memcpy(sas_phy->attached_sas_addr, &id->sas_addr, SAS_ADDR_SIZE);
2690 	dev_info(dev, "phyup: phy%d link_rate=%d\n", phy_no, link_rate);
2691 	phy->port_id = port_id;
2692 	phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA);
2693 	phy->phy_type |= PORT_TYPE_SAS;
2694 	phy->phy_attached = 1;
2695 	phy->identify.device_type = id->dev_type;
2696 	phy->frame_rcvd_size =	sizeof(struct sas_identify_frame);
2697 	if (phy->identify.device_type == SAS_END_DEVICE)
2698 		phy->identify.target_port_protocols =
2699 			SAS_PROTOCOL_SSP;
2700 	else if (phy->identify.device_type != SAS_PHY_UNUSED) {
2701 		phy->identify.target_port_protocols =
2702 			SAS_PROTOCOL_SMP;
2703 		if (!timer_pending(&hisi_hba->timer))
2704 			set_link_timer_quirk(hisi_hba);
2705 	}
2706 	hisi_sas_notify_phy_event(phy, HISI_PHYE_PHY_UP);
2707 end:
2708 	if (phy->reset_completion)
2709 		complete(phy->reset_completion);
2710 	hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0,
2711 			     CHL_INT0_SL_PHY_ENABLE_MSK);
2712 	hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_PHY_ENA_MSK, 0);
2713 
2714 	return res;
2715 }
2716 
check_any_wideports_v2_hw(struct hisi_hba * hisi_hba)2717 static bool check_any_wideports_v2_hw(struct hisi_hba *hisi_hba)
2718 {
2719 	u32 port_state;
2720 
2721 	port_state = hisi_sas_read32(hisi_hba, PORT_STATE);
2722 	if (port_state & 0x1ff)
2723 		return true;
2724 
2725 	return false;
2726 }
2727 
phy_down_v2_hw(int phy_no,struct hisi_hba * hisi_hba)2728 static int phy_down_v2_hw(int phy_no, struct hisi_hba *hisi_hba)
2729 {
2730 	u32 phy_state, sl_ctrl, txid_auto;
2731 	struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
2732 	struct hisi_sas_port *port = phy->port;
2733 	struct device *dev = hisi_hba->dev;
2734 
2735 	del_timer(&phy->timer);
2736 	hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_NOT_RDY_MSK, 1);
2737 
2738 	phy_state = hisi_sas_read32(hisi_hba, PHY_STATE);
2739 	dev_info(dev, "phydown: phy%d phy_state=0x%x\n", phy_no, phy_state);
2740 	hisi_sas_phy_down(hisi_hba, phy_no, (phy_state & 1 << phy_no) ? 1 : 0,
2741 			  GFP_ATOMIC);
2742 
2743 	sl_ctrl = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL);
2744 	hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL,
2745 			     sl_ctrl & ~SL_CONTROL_CTA_MSK);
2746 	if (port && !get_wideport_bitmap_v2_hw(hisi_hba, port->id))
2747 		if (!check_any_wideports_v2_hw(hisi_hba) &&
2748 				timer_pending(&hisi_hba->timer))
2749 			del_timer(&hisi_hba->timer);
2750 
2751 	txid_auto = hisi_sas_phy_read32(hisi_hba, phy_no, TXID_AUTO);
2752 	hisi_sas_phy_write32(hisi_hba, phy_no, TXID_AUTO,
2753 			     txid_auto | TXID_AUTO_CT3_MSK);
2754 
2755 	hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, CHL_INT0_NOT_RDY_MSK);
2756 	hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_NOT_RDY_MSK, 0);
2757 
2758 	return IRQ_HANDLED;
2759 }
2760 
int_phy_updown_v2_hw(int irq_no,void * p)2761 static irqreturn_t int_phy_updown_v2_hw(int irq_no, void *p)
2762 {
2763 	struct hisi_hba *hisi_hba = p;
2764 	u32 irq_msk;
2765 	int phy_no = 0;
2766 	irqreturn_t res = IRQ_NONE;
2767 
2768 	irq_msk = (hisi_sas_read32(hisi_hba, HGC_INVLD_DQE_INFO)
2769 		   >> HGC_INVLD_DQE_INFO_FB_CH0_OFF) & 0x1ff;
2770 	while (irq_msk) {
2771 		if (irq_msk  & 1) {
2772 			u32 reg_value = hisi_sas_phy_read32(hisi_hba, phy_no,
2773 					    CHL_INT0);
2774 
2775 			switch (reg_value & (CHL_INT0_NOT_RDY_MSK |
2776 					CHL_INT0_SL_PHY_ENABLE_MSK)) {
2777 
2778 			case CHL_INT0_SL_PHY_ENABLE_MSK:
2779 				/* phy up */
2780 				if (phy_up_v2_hw(phy_no, hisi_hba) ==
2781 				    IRQ_HANDLED)
2782 					res = IRQ_HANDLED;
2783 				break;
2784 
2785 			case CHL_INT0_NOT_RDY_MSK:
2786 				/* phy down */
2787 				if (phy_down_v2_hw(phy_no, hisi_hba) ==
2788 				    IRQ_HANDLED)
2789 					res = IRQ_HANDLED;
2790 				break;
2791 
2792 			case (CHL_INT0_NOT_RDY_MSK |
2793 					CHL_INT0_SL_PHY_ENABLE_MSK):
2794 				reg_value = hisi_sas_read32(hisi_hba,
2795 						PHY_STATE);
2796 				if (reg_value & BIT(phy_no)) {
2797 					/* phy up */
2798 					if (phy_up_v2_hw(phy_no, hisi_hba) ==
2799 					    IRQ_HANDLED)
2800 						res = IRQ_HANDLED;
2801 				} else {
2802 					/* phy down */
2803 					if (phy_down_v2_hw(phy_no, hisi_hba) ==
2804 					    IRQ_HANDLED)
2805 						res = IRQ_HANDLED;
2806 				}
2807 				break;
2808 
2809 			default:
2810 				break;
2811 			}
2812 
2813 		}
2814 		irq_msk >>= 1;
2815 		phy_no++;
2816 	}
2817 
2818 	return res;
2819 }
2820 
phy_bcast_v2_hw(int phy_no,struct hisi_hba * hisi_hba)2821 static void phy_bcast_v2_hw(int phy_no, struct hisi_hba *hisi_hba)
2822 {
2823 	struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
2824 	u32 bcast_status;
2825 
2826 	hisi_sas_phy_write32(hisi_hba, phy_no, SL_RX_BCAST_CHK_MSK, 1);
2827 	bcast_status = hisi_sas_phy_read32(hisi_hba, phy_no, RX_PRIMS_STATUS);
2828 	if (bcast_status & RX_BCAST_CHG_MSK)
2829 		hisi_sas_phy_bcast(phy);
2830 	hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0,
2831 			     CHL_INT0_SL_RX_BCST_ACK_MSK);
2832 	hisi_sas_phy_write32(hisi_hba, phy_no, SL_RX_BCAST_CHK_MSK, 0);
2833 }
2834 
2835 static const struct hisi_sas_hw_error port_ecc_axi_error[] = {
2836 	{
2837 		.irq_msk = BIT(CHL_INT1_DMAC_TX_ECC_ERR_OFF),
2838 		.msg = "dmac_tx_ecc_bad_err",
2839 	},
2840 	{
2841 		.irq_msk = BIT(CHL_INT1_DMAC_RX_ECC_ERR_OFF),
2842 		.msg = "dmac_rx_ecc_bad_err",
2843 	},
2844 	{
2845 		.irq_msk = BIT(CHL_INT1_DMAC_TX_AXI_WR_ERR_OFF),
2846 		.msg = "dma_tx_axi_wr_err",
2847 	},
2848 	{
2849 		.irq_msk = BIT(CHL_INT1_DMAC_TX_AXI_RD_ERR_OFF),
2850 		.msg = "dma_tx_axi_rd_err",
2851 	},
2852 	{
2853 		.irq_msk = BIT(CHL_INT1_DMAC_RX_AXI_WR_ERR_OFF),
2854 		.msg = "dma_rx_axi_wr_err",
2855 	},
2856 	{
2857 		.irq_msk = BIT(CHL_INT1_DMAC_RX_AXI_RD_ERR_OFF),
2858 		.msg = "dma_rx_axi_rd_err",
2859 	},
2860 };
2861 
int_chnl_int_v2_hw(int irq_no,void * p)2862 static irqreturn_t int_chnl_int_v2_hw(int irq_no, void *p)
2863 {
2864 	struct hisi_hba *hisi_hba = p;
2865 	struct device *dev = hisi_hba->dev;
2866 	u32 ent_msk, ent_tmp, irq_msk;
2867 	int phy_no = 0;
2868 
2869 	ent_msk = hisi_sas_read32(hisi_hba, ENT_INT_SRC_MSK3);
2870 	ent_tmp = ent_msk;
2871 	ent_msk |= ENT_INT_SRC_MSK3_ENT95_MSK_MSK;
2872 	hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, ent_msk);
2873 
2874 	irq_msk = (hisi_sas_read32(hisi_hba, HGC_INVLD_DQE_INFO) >>
2875 			HGC_INVLD_DQE_INFO_FB_CH3_OFF) & 0x1ff;
2876 
2877 	while (irq_msk) {
2878 		u32 irq_value0 = hisi_sas_phy_read32(hisi_hba, phy_no,
2879 						     CHL_INT0);
2880 		u32 irq_value1 = hisi_sas_phy_read32(hisi_hba, phy_no,
2881 						     CHL_INT1);
2882 		u32 irq_value2 = hisi_sas_phy_read32(hisi_hba, phy_no,
2883 						     CHL_INT2);
2884 
2885 		if ((irq_msk & (1 << phy_no)) && irq_value1) {
2886 			int i;
2887 
2888 			for (i = 0; i < ARRAY_SIZE(port_ecc_axi_error); i++) {
2889 				const struct hisi_sas_hw_error *error =
2890 						&port_ecc_axi_error[i];
2891 
2892 				if (!(irq_value1 & error->irq_msk))
2893 					continue;
2894 
2895 				dev_warn(dev, "%s error (phy%d 0x%x) found!\n",
2896 					error->msg, phy_no, irq_value1);
2897 				queue_work(hisi_hba->wq, &hisi_hba->rst_work);
2898 			}
2899 
2900 			hisi_sas_phy_write32(hisi_hba, phy_no,
2901 					     CHL_INT1, irq_value1);
2902 		}
2903 
2904 		if ((irq_msk & (1 << phy_no)) && irq_value2) {
2905 			struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
2906 
2907 			if (irq_value2 & BIT(CHL_INT2_SL_IDAF_TOUT_CONF_OFF)) {
2908 				dev_warn(dev, "phy%d identify timeout\n",
2909 					 phy_no);
2910 				hisi_sas_notify_phy_event(phy,
2911 						HISI_PHYE_LINK_RESET);
2912 			}
2913 
2914 			hisi_sas_phy_write32(hisi_hba, phy_no,
2915 						 CHL_INT2, irq_value2);
2916 		}
2917 
2918 		if ((irq_msk & (1 << phy_no)) && irq_value0) {
2919 			if (irq_value0 & CHL_INT0_SL_RX_BCST_ACK_MSK)
2920 				phy_bcast_v2_hw(phy_no, hisi_hba);
2921 
2922 			if (irq_value0 & CHL_INT0_PHY_RDY_MSK)
2923 				hisi_sas_phy_oob_ready(hisi_hba, phy_no);
2924 
2925 			hisi_sas_phy_write32(hisi_hba, phy_no,
2926 					CHL_INT0, irq_value0
2927 					& (~CHL_INT0_HOTPLUG_TOUT_MSK)
2928 					& (~CHL_INT0_SL_PHY_ENABLE_MSK)
2929 					& (~CHL_INT0_NOT_RDY_MSK));
2930 		}
2931 		irq_msk &= ~(1 << phy_no);
2932 		phy_no++;
2933 	}
2934 
2935 	hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, ent_tmp);
2936 
2937 	return IRQ_HANDLED;
2938 }
2939 
2940 static void
one_bit_ecc_error_process_v2_hw(struct hisi_hba * hisi_hba,u32 irq_value)2941 one_bit_ecc_error_process_v2_hw(struct hisi_hba *hisi_hba, u32 irq_value)
2942 {
2943 	struct device *dev = hisi_hba->dev;
2944 	const struct hisi_sas_hw_error *ecc_error;
2945 	u32 val;
2946 	int i;
2947 
2948 	for (i = 0; i < ARRAY_SIZE(one_bit_ecc_errors); i++) {
2949 		ecc_error = &one_bit_ecc_errors[i];
2950 		if (irq_value & ecc_error->irq_msk) {
2951 			val = hisi_sas_read32(hisi_hba, ecc_error->reg);
2952 			val &= ecc_error->msk;
2953 			val >>= ecc_error->shift;
2954 			dev_warn(dev, "%s found: mem addr is 0x%08X\n",
2955 				 ecc_error->msg, val);
2956 		}
2957 	}
2958 }
2959 
multi_bit_ecc_error_process_v2_hw(struct hisi_hba * hisi_hba,u32 irq_value)2960 static void multi_bit_ecc_error_process_v2_hw(struct hisi_hba *hisi_hba,
2961 		u32 irq_value)
2962 {
2963 	struct device *dev = hisi_hba->dev;
2964 	const struct hisi_sas_hw_error *ecc_error;
2965 	u32 val;
2966 	int i;
2967 
2968 	for (i = 0; i < ARRAY_SIZE(multi_bit_ecc_errors); i++) {
2969 		ecc_error = &multi_bit_ecc_errors[i];
2970 		if (irq_value & ecc_error->irq_msk) {
2971 			val = hisi_sas_read32(hisi_hba, ecc_error->reg);
2972 			val &= ecc_error->msk;
2973 			val >>= ecc_error->shift;
2974 			dev_err(dev, "%s (0x%x) found: mem addr is 0x%08X\n",
2975 				ecc_error->msg, irq_value, val);
2976 			queue_work(hisi_hba->wq, &hisi_hba->rst_work);
2977 		}
2978 	}
2979 
2980 	return;
2981 }
2982 
fatal_ecc_int_v2_hw(int irq_no,void * p)2983 static irqreturn_t fatal_ecc_int_v2_hw(int irq_no, void *p)
2984 {
2985 	struct hisi_hba *hisi_hba = p;
2986 	u32 irq_value, irq_msk;
2987 
2988 	irq_msk = hisi_sas_read32(hisi_hba, SAS_ECC_INTR_MSK);
2989 	hisi_sas_write32(hisi_hba, SAS_ECC_INTR_MSK, irq_msk | 0xffffffff);
2990 
2991 	irq_value = hisi_sas_read32(hisi_hba, SAS_ECC_INTR);
2992 	if (irq_value) {
2993 		one_bit_ecc_error_process_v2_hw(hisi_hba, irq_value);
2994 		multi_bit_ecc_error_process_v2_hw(hisi_hba, irq_value);
2995 	}
2996 
2997 	hisi_sas_write32(hisi_hba, SAS_ECC_INTR, irq_value);
2998 	hisi_sas_write32(hisi_hba, SAS_ECC_INTR_MSK, irq_msk);
2999 
3000 	return IRQ_HANDLED;
3001 }
3002 
3003 static const struct hisi_sas_hw_error axi_error[] = {
3004 	{ .msk = BIT(0), .msg = "IOST_AXI_W_ERR" },
3005 	{ .msk = BIT(1), .msg = "IOST_AXI_R_ERR" },
3006 	{ .msk = BIT(2), .msg = "ITCT_AXI_W_ERR" },
3007 	{ .msk = BIT(3), .msg = "ITCT_AXI_R_ERR" },
3008 	{ .msk = BIT(4), .msg = "SATA_AXI_W_ERR" },
3009 	{ .msk = BIT(5), .msg = "SATA_AXI_R_ERR" },
3010 	{ .msk = BIT(6), .msg = "DQE_AXI_R_ERR" },
3011 	{ .msk = BIT(7), .msg = "CQE_AXI_W_ERR" },
3012 	{}
3013 };
3014 
3015 static const struct hisi_sas_hw_error fifo_error[] = {
3016 	{ .msk = BIT(8),  .msg = "CQE_WINFO_FIFO" },
3017 	{ .msk = BIT(9),  .msg = "CQE_MSG_FIFIO" },
3018 	{ .msk = BIT(10), .msg = "GETDQE_FIFO" },
3019 	{ .msk = BIT(11), .msg = "CMDP_FIFO" },
3020 	{ .msk = BIT(12), .msg = "AWTCTRL_FIFO" },
3021 	{}
3022 };
3023 
3024 static const struct hisi_sas_hw_error fatal_axi_errors[] = {
3025 	{
3026 		.irq_msk = BIT(ENT_INT_SRC3_WP_DEPTH_OFF),
3027 		.msg = "write pointer and depth",
3028 	},
3029 	{
3030 		.irq_msk = BIT(ENT_INT_SRC3_IPTT_SLOT_NOMATCH_OFF),
3031 		.msg = "iptt no match slot",
3032 	},
3033 	{
3034 		.irq_msk = BIT(ENT_INT_SRC3_RP_DEPTH_OFF),
3035 		.msg = "read pointer and depth",
3036 	},
3037 	{
3038 		.irq_msk = BIT(ENT_INT_SRC3_AXI_OFF),
3039 		.reg = HGC_AXI_FIFO_ERR_INFO,
3040 		.sub = axi_error,
3041 	},
3042 	{
3043 		.irq_msk = BIT(ENT_INT_SRC3_FIFO_OFF),
3044 		.reg = HGC_AXI_FIFO_ERR_INFO,
3045 		.sub = fifo_error,
3046 	},
3047 	{
3048 		.irq_msk = BIT(ENT_INT_SRC3_LM_OFF),
3049 		.msg = "LM add/fetch list",
3050 	},
3051 	{
3052 		.irq_msk = BIT(ENT_INT_SRC3_ABT_OFF),
3053 		.msg = "SAS_HGC_ABT fetch LM list",
3054 	},
3055 };
3056 
fatal_axi_int_v2_hw(int irq_no,void * p)3057 static irqreturn_t fatal_axi_int_v2_hw(int irq_no, void *p)
3058 {
3059 	struct hisi_hba *hisi_hba = p;
3060 	u32 irq_value, irq_msk, err_value;
3061 	struct device *dev = hisi_hba->dev;
3062 	const struct hisi_sas_hw_error *axi_error;
3063 	int i;
3064 
3065 	irq_msk = hisi_sas_read32(hisi_hba, ENT_INT_SRC_MSK3);
3066 	hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, irq_msk | 0xfffffffe);
3067 
3068 	irq_value = hisi_sas_read32(hisi_hba, ENT_INT_SRC3);
3069 
3070 	for (i = 0; i < ARRAY_SIZE(fatal_axi_errors); i++) {
3071 		axi_error = &fatal_axi_errors[i];
3072 		if (!(irq_value & axi_error->irq_msk))
3073 			continue;
3074 
3075 		hisi_sas_write32(hisi_hba, ENT_INT_SRC3,
3076 				 1 << axi_error->shift);
3077 		if (axi_error->sub) {
3078 			const struct hisi_sas_hw_error *sub = axi_error->sub;
3079 
3080 			err_value = hisi_sas_read32(hisi_hba, axi_error->reg);
3081 			for (; sub->msk || sub->msg; sub++) {
3082 				if (!(err_value & sub->msk))
3083 					continue;
3084 				dev_err(dev, "%s (0x%x) found!\n",
3085 					sub->msg, irq_value);
3086 				queue_work(hisi_hba->wq, &hisi_hba->rst_work);
3087 			}
3088 		} else {
3089 			dev_err(dev, "%s (0x%x) found!\n",
3090 				axi_error->msg, irq_value);
3091 			queue_work(hisi_hba->wq, &hisi_hba->rst_work);
3092 		}
3093 	}
3094 
3095 	if (irq_value & BIT(ENT_INT_SRC3_ITC_INT_OFF)) {
3096 		u32 reg_val = hisi_sas_read32(hisi_hba, ITCT_CLR);
3097 		u32 dev_id = reg_val & ITCT_DEV_MSK;
3098 		struct hisi_sas_device *sas_dev = &hisi_hba->devices[dev_id];
3099 
3100 		hisi_sas_write32(hisi_hba, ITCT_CLR, 0);
3101 		dev_dbg(dev, "clear ITCT ok\n");
3102 		complete(sas_dev->completion);
3103 	}
3104 
3105 	hisi_sas_write32(hisi_hba, ENT_INT_SRC3, irq_value);
3106 	hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, irq_msk);
3107 
3108 	return IRQ_HANDLED;
3109 }
3110 
cq_thread_v2_hw(int irq_no,void * p)3111 static irqreturn_t  cq_thread_v2_hw(int irq_no, void *p)
3112 {
3113 	struct hisi_sas_cq *cq = p;
3114 	struct hisi_hba *hisi_hba = cq->hisi_hba;
3115 	struct hisi_sas_slot *slot;
3116 	struct hisi_sas_itct *itct;
3117 	struct hisi_sas_complete_v2_hdr *complete_queue;
3118 	u32 rd_point = cq->rd_point, wr_point, dev_id;
3119 	int queue = cq->id;
3120 
3121 	if (unlikely(hisi_hba->reject_stp_links_msk))
3122 		phys_try_accept_stp_links_v2_hw(hisi_hba);
3123 
3124 	complete_queue = hisi_hba->complete_hdr[queue];
3125 
3126 	wr_point = hisi_sas_read32(hisi_hba, COMPL_Q_0_WR_PTR +
3127 				   (0x14 * queue));
3128 
3129 	while (rd_point != wr_point) {
3130 		struct hisi_sas_complete_v2_hdr *complete_hdr;
3131 		int iptt;
3132 
3133 		complete_hdr = &complete_queue[rd_point];
3134 
3135 		/* Check for NCQ completion */
3136 		if (complete_hdr->act) {
3137 			u32 act_tmp = le32_to_cpu(complete_hdr->act);
3138 			int ncq_tag_count = ffs(act_tmp);
3139 			u32 dw1 = le32_to_cpu(complete_hdr->dw1);
3140 
3141 			dev_id = (dw1 & CMPLT_HDR_DEV_ID_MSK) >>
3142 				 CMPLT_HDR_DEV_ID_OFF;
3143 			itct = &hisi_hba->itct[dev_id];
3144 
3145 			/* The NCQ tags are held in the itct header */
3146 			while (ncq_tag_count) {
3147 				__le64 *_ncq_tag = &itct->qw4_15[0], __ncq_tag;
3148 				u64 ncq_tag;
3149 
3150 				ncq_tag_count--;
3151 				__ncq_tag = _ncq_tag[ncq_tag_count / 5];
3152 				ncq_tag = le64_to_cpu(__ncq_tag);
3153 				iptt = (ncq_tag >> (ncq_tag_count % 5) * 12) &
3154 				       0xfff;
3155 
3156 				slot = &hisi_hba->slot_info[iptt];
3157 				slot->cmplt_queue_slot = rd_point;
3158 				slot->cmplt_queue = queue;
3159 				slot_complete_v2_hw(hisi_hba, slot);
3160 
3161 				act_tmp &= ~(1 << ncq_tag_count);
3162 				ncq_tag_count = ffs(act_tmp);
3163 			}
3164 		} else {
3165 			u32 dw1 = le32_to_cpu(complete_hdr->dw1);
3166 
3167 			iptt = dw1 & CMPLT_HDR_IPTT_MSK;
3168 			slot = &hisi_hba->slot_info[iptt];
3169 			slot->cmplt_queue_slot = rd_point;
3170 			slot->cmplt_queue = queue;
3171 			slot_complete_v2_hw(hisi_hba, slot);
3172 		}
3173 
3174 		if (++rd_point >= HISI_SAS_QUEUE_SLOTS)
3175 			rd_point = 0;
3176 	}
3177 
3178 	/* update rd_point */
3179 	cq->rd_point = rd_point;
3180 	hisi_sas_write32(hisi_hba, COMPL_Q_0_RD_PTR + (0x14 * queue), rd_point);
3181 
3182 	return IRQ_HANDLED;
3183 }
3184 
cq_interrupt_v2_hw(int irq_no,void * p)3185 static irqreturn_t cq_interrupt_v2_hw(int irq_no, void *p)
3186 {
3187 	struct hisi_sas_cq *cq = p;
3188 	struct hisi_hba *hisi_hba = cq->hisi_hba;
3189 	int queue = cq->id;
3190 
3191 	hisi_sas_write32(hisi_hba, OQ_INT_SRC, 1 << queue);
3192 
3193 	return IRQ_WAKE_THREAD;
3194 }
3195 
sata_int_v2_hw(int irq_no,void * p)3196 static irqreturn_t sata_int_v2_hw(int irq_no, void *p)
3197 {
3198 	struct hisi_sas_phy *phy = p;
3199 	struct hisi_hba *hisi_hba = phy->hisi_hba;
3200 	struct asd_sas_phy *sas_phy = &phy->sas_phy;
3201 	struct device *dev = hisi_hba->dev;
3202 	struct	hisi_sas_initial_fis *initial_fis;
3203 	struct dev_to_host_fis *fis;
3204 	u32 ent_tmp, ent_msk, ent_int, port_id, link_rate, hard_phy_linkrate;
3205 	irqreturn_t res = IRQ_HANDLED;
3206 	u8 attached_sas_addr[SAS_ADDR_SIZE] = {0};
3207 	int phy_no, offset;
3208 
3209 	del_timer(&phy->timer);
3210 
3211 	phy_no = sas_phy->id;
3212 	initial_fis = &hisi_hba->initial_fis[phy_no];
3213 	fis = &initial_fis->fis;
3214 
3215 	offset = 4 * (phy_no / 4);
3216 	ent_msk = hisi_sas_read32(hisi_hba, ENT_INT_SRC_MSK1 + offset);
3217 	hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1 + offset,
3218 			 ent_msk | 1 << ((phy_no % 4) * 8));
3219 
3220 	ent_int = hisi_sas_read32(hisi_hba, ENT_INT_SRC1 + offset);
3221 	ent_tmp = ent_int & (1 << (ENT_INT_SRC1_D2H_FIS_CH1_OFF *
3222 			     (phy_no % 4)));
3223 	ent_int >>= ENT_INT_SRC1_D2H_FIS_CH1_OFF * (phy_no % 4);
3224 	if ((ent_int & ENT_INT_SRC1_D2H_FIS_CH0_MSK) == 0) {
3225 		dev_warn(dev, "sata int: phy%d did not receive FIS\n", phy_no);
3226 		res = IRQ_NONE;
3227 		goto end;
3228 	}
3229 
3230 	/* check ERR bit of Status Register */
3231 	if (fis->status & ATA_ERR) {
3232 		dev_warn(dev, "sata int: phy%d FIS status: 0x%x\n", phy_no,
3233 			 fis->status);
3234 		hisi_sas_notify_phy_event(phy, HISI_PHYE_LINK_RESET);
3235 		res = IRQ_NONE;
3236 		goto end;
3237 	}
3238 
3239 	if (unlikely(phy_no == 8)) {
3240 		u32 port_state = hisi_sas_read32(hisi_hba, PORT_STATE);
3241 
3242 		port_id = (port_state & PORT_STATE_PHY8_PORT_NUM_MSK) >>
3243 			  PORT_STATE_PHY8_PORT_NUM_OFF;
3244 		link_rate = (port_state & PORT_STATE_PHY8_CONN_RATE_MSK) >>
3245 			    PORT_STATE_PHY8_CONN_RATE_OFF;
3246 	} else {
3247 		port_id = hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA);
3248 		port_id = (port_id >> (4 * phy_no)) & 0xf;
3249 		link_rate = hisi_sas_read32(hisi_hba, PHY_CONN_RATE);
3250 		link_rate = (link_rate >> (phy_no * 4)) & 0xf;
3251 	}
3252 
3253 	if (port_id == 0xf) {
3254 		dev_err(dev, "sata int: phy%d invalid portid\n", phy_no);
3255 		res = IRQ_NONE;
3256 		goto end;
3257 	}
3258 
3259 	sas_phy->linkrate = link_rate;
3260 	hard_phy_linkrate = hisi_sas_phy_read32(hisi_hba, phy_no,
3261 						HARD_PHY_LINKRATE);
3262 	phy->maximum_linkrate = hard_phy_linkrate & 0xf;
3263 	phy->minimum_linkrate = (hard_phy_linkrate >> 4) & 0xf;
3264 
3265 	sas_phy->oob_mode = SATA_OOB_MODE;
3266 	/* Make up some unique SAS address */
3267 	attached_sas_addr[0] = 0x50;
3268 	attached_sas_addr[6] = hisi_hba->shost->host_no;
3269 	attached_sas_addr[7] = phy_no;
3270 	memcpy(sas_phy->attached_sas_addr, attached_sas_addr, SAS_ADDR_SIZE);
3271 	memcpy(sas_phy->frame_rcvd, fis, sizeof(struct dev_to_host_fis));
3272 	dev_info(dev, "sata int phyup: phy%d link_rate=%d\n", phy_no, link_rate);
3273 	phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA);
3274 	phy->port_id = port_id;
3275 	phy->phy_type |= PORT_TYPE_SATA;
3276 	phy->phy_attached = 1;
3277 	phy->identify.device_type = SAS_SATA_DEV;
3278 	phy->frame_rcvd_size = sizeof(struct dev_to_host_fis);
3279 	phy->identify.target_port_protocols = SAS_PROTOCOL_SATA;
3280 	hisi_sas_notify_phy_event(phy, HISI_PHYE_PHY_UP);
3281 
3282 	if (phy->reset_completion)
3283 		complete(phy->reset_completion);
3284 end:
3285 	hisi_sas_write32(hisi_hba, ENT_INT_SRC1 + offset, ent_tmp);
3286 	hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1 + offset, ent_msk);
3287 
3288 	return res;
3289 }
3290 
3291 static irq_handler_t phy_interrupts[HISI_SAS_PHY_INT_NR] = {
3292 	int_phy_updown_v2_hw,
3293 	int_chnl_int_v2_hw,
3294 };
3295 
3296 static irq_handler_t fatal_interrupts[HISI_SAS_FATAL_INT_NR] = {
3297 	fatal_ecc_int_v2_hw,
3298 	fatal_axi_int_v2_hw
3299 };
3300 
3301 #define CQ0_IRQ_INDEX (96)
3302 
hisi_sas_v2_interrupt_preinit(struct hisi_hba * hisi_hba)3303 static int hisi_sas_v2_interrupt_preinit(struct hisi_hba *hisi_hba)
3304 {
3305 	struct platform_device *pdev = hisi_hba->platform_dev;
3306 	struct Scsi_Host *shost = hisi_hba->shost;
3307 	struct irq_affinity desc = {
3308 		.pre_vectors = CQ0_IRQ_INDEX,
3309 		.post_vectors = 16,
3310 	};
3311 	int resv = desc.pre_vectors + desc.post_vectors, minvec = resv + 1, nvec;
3312 
3313 	nvec = devm_platform_get_irqs_affinity(pdev, &desc, minvec, 128,
3314 					       &hisi_hba->irq_map);
3315 	if (nvec < 0)
3316 		return nvec;
3317 
3318 	shost->nr_hw_queues = hisi_hba->cq_nvecs = nvec - resv;
3319 
3320 	return 0;
3321 }
3322 
3323 /*
3324  * There is a limitation in the hip06 chipset that we need
3325  * to map in all mbigen interrupts, even if they are not used.
3326  */
interrupt_init_v2_hw(struct hisi_hba * hisi_hba)3327 static int interrupt_init_v2_hw(struct hisi_hba *hisi_hba)
3328 {
3329 	struct platform_device *pdev = hisi_hba->platform_dev;
3330 	struct device *dev = &pdev->dev;
3331 	int irq, rc = 0;
3332 	int i, phy_no, fatal_no, queue_no;
3333 
3334 	for (i = 0; i < HISI_SAS_PHY_INT_NR; i++) {
3335 		irq = hisi_hba->irq_map[i + 1]; /* Phy up/down is irq1 */
3336 		rc = devm_request_irq(dev, irq, phy_interrupts[i], 0,
3337 				      DRV_NAME " phy", hisi_hba);
3338 		if (rc) {
3339 			dev_err(dev, "irq init: could not request phy interrupt %d, rc=%d\n",
3340 				irq, rc);
3341 			rc = -ENOENT;
3342 			goto err_out;
3343 		}
3344 	}
3345 
3346 	for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) {
3347 		struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
3348 
3349 		irq = hisi_hba->irq_map[phy_no + 72];
3350 		rc = devm_request_irq(dev, irq, sata_int_v2_hw, 0,
3351 				      DRV_NAME " sata", phy);
3352 		if (rc) {
3353 			dev_err(dev, "irq init: could not request sata interrupt %d, rc=%d\n",
3354 				irq, rc);
3355 			rc = -ENOENT;
3356 			goto err_out;
3357 		}
3358 	}
3359 
3360 	for (fatal_no = 0; fatal_no < HISI_SAS_FATAL_INT_NR; fatal_no++) {
3361 		irq = hisi_hba->irq_map[fatal_no + 81];
3362 		rc = devm_request_irq(dev, irq, fatal_interrupts[fatal_no], 0,
3363 				      DRV_NAME " fatal", hisi_hba);
3364 		if (rc) {
3365 			dev_err(dev, "irq init: could not request fatal interrupt %d, rc=%d\n",
3366 				irq, rc);
3367 			rc = -ENOENT;
3368 			goto err_out;
3369 		}
3370 	}
3371 
3372 	for (queue_no = 0; queue_no < hisi_hba->cq_nvecs; queue_no++) {
3373 		struct hisi_sas_cq *cq = &hisi_hba->cq[queue_no];
3374 
3375 		cq->irq_no = hisi_hba->irq_map[queue_no + 96];
3376 		rc = devm_request_threaded_irq(dev, cq->irq_no,
3377 					       cq_interrupt_v2_hw,
3378 					       cq_thread_v2_hw, IRQF_ONESHOT,
3379 					       DRV_NAME " cq", cq);
3380 		if (rc) {
3381 			dev_err(dev, "irq init: could not request cq interrupt %d, rc=%d\n",
3382 					cq->irq_no, rc);
3383 			rc = -ENOENT;
3384 			goto err_out;
3385 		}
3386 		cq->irq_mask = irq_get_affinity_mask(cq->irq_no);
3387 	}
3388 err_out:
3389 	return rc;
3390 }
3391 
hisi_sas_v2_init(struct hisi_hba * hisi_hba)3392 static int hisi_sas_v2_init(struct hisi_hba *hisi_hba)
3393 {
3394 	int rc;
3395 
3396 	memset(hisi_hba->sata_dev_bitmap, 0, sizeof(hisi_hba->sata_dev_bitmap));
3397 
3398 	rc = hw_init_v2_hw(hisi_hba);
3399 	if (rc)
3400 		return rc;
3401 
3402 	rc = interrupt_init_v2_hw(hisi_hba);
3403 	if (rc)
3404 		return rc;
3405 
3406 	return 0;
3407 }
3408 
interrupt_disable_v2_hw(struct hisi_hba * hisi_hba)3409 static void interrupt_disable_v2_hw(struct hisi_hba *hisi_hba)
3410 {
3411 	struct platform_device *pdev = hisi_hba->platform_dev;
3412 	int i;
3413 
3414 	for (i = 0; i < hisi_hba->queue_count; i++)
3415 		hisi_sas_write32(hisi_hba, OQ0_INT_SRC_MSK + 0x4 * i, 0x1);
3416 
3417 	hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1, 0xffffffff);
3418 	hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK2, 0xffffffff);
3419 	hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, 0xffffffff);
3420 	hisi_sas_write32(hisi_hba, SAS_ECC_INTR_MSK, 0xffffffff);
3421 
3422 	for (i = 0; i < hisi_hba->n_phy; i++) {
3423 		hisi_sas_phy_write32(hisi_hba, i, CHL_INT1_MSK, 0xffffffff);
3424 		hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0xffffffff);
3425 	}
3426 
3427 	for (i = 0; i < 128; i++)
3428 		synchronize_irq(platform_get_irq(pdev, i));
3429 }
3430 
3431 
get_phys_state_v2_hw(struct hisi_hba * hisi_hba)3432 static u32 get_phys_state_v2_hw(struct hisi_hba *hisi_hba)
3433 {
3434 	return hisi_sas_read32(hisi_hba, PHY_STATE);
3435 }
3436 
soft_reset_v2_hw(struct hisi_hba * hisi_hba)3437 static int soft_reset_v2_hw(struct hisi_hba *hisi_hba)
3438 {
3439 	struct device *dev = hisi_hba->dev;
3440 	int rc, cnt;
3441 
3442 	interrupt_disable_v2_hw(hisi_hba);
3443 	hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, 0x0);
3444 
3445 	hisi_sas_stop_phys(hisi_hba);
3446 
3447 	mdelay(10);
3448 
3449 	hisi_sas_write32(hisi_hba, AXI_MASTER_CFG_BASE + AM_CTRL_GLOBAL, 0x1);
3450 
3451 	/* wait until bus idle */
3452 	cnt = 0;
3453 	while (1) {
3454 		u32 status = hisi_sas_read32_relaxed(hisi_hba,
3455 				AXI_MASTER_CFG_BASE + AM_CURR_TRANS_RETURN);
3456 
3457 		if (status == 0x3)
3458 			break;
3459 
3460 		udelay(10);
3461 		if (cnt++ > 10) {
3462 			dev_err(dev, "wait axi bus state to idle timeout!\n");
3463 			return -1;
3464 		}
3465 	}
3466 
3467 	hisi_sas_init_mem(hisi_hba);
3468 
3469 	rc = hw_init_v2_hw(hisi_hba);
3470 	if (rc)
3471 		return rc;
3472 
3473 	phys_reject_stp_links_v2_hw(hisi_hba);
3474 
3475 	return 0;
3476 }
3477 
write_gpio_v2_hw(struct hisi_hba * hisi_hba,u8 reg_type,u8 reg_index,u8 reg_count,u8 * write_data)3478 static int write_gpio_v2_hw(struct hisi_hba *hisi_hba, u8 reg_type,
3479 			u8 reg_index, u8 reg_count, u8 *write_data)
3480 {
3481 	struct device *dev = hisi_hba->dev;
3482 	int phy_no, count;
3483 
3484 	if (!hisi_hba->sgpio_regs)
3485 		return -EOPNOTSUPP;
3486 
3487 	switch (reg_type) {
3488 	case SAS_GPIO_REG_TX:
3489 		count = reg_count * 4;
3490 		count = min(count, hisi_hba->n_phy);
3491 
3492 		for (phy_no = 0; phy_no < count; phy_no++) {
3493 			/*
3494 			 * GPIO_TX[n] register has the highest numbered drive
3495 			 * of the four in the first byte and the lowest
3496 			 * numbered drive in the fourth byte.
3497 			 * See SFF-8485 Rev. 0.7 Table 24.
3498 			 */
3499 			void __iomem  *reg_addr = hisi_hba->sgpio_regs +
3500 					reg_index * 4 + phy_no;
3501 			int data_idx = phy_no + 3 - (phy_no % 4) * 2;
3502 
3503 			writeb(write_data[data_idx], reg_addr);
3504 		}
3505 
3506 		break;
3507 	default:
3508 		dev_err(dev, "write gpio: unsupported or bad reg type %d\n",
3509 			reg_type);
3510 		return -EINVAL;
3511 	}
3512 
3513 	return 0;
3514 }
3515 
wait_cmds_complete_timeout_v2_hw(struct hisi_hba * hisi_hba,int delay_ms,int timeout_ms)3516 static void wait_cmds_complete_timeout_v2_hw(struct hisi_hba *hisi_hba,
3517 					     int delay_ms, int timeout_ms)
3518 {
3519 	struct device *dev = hisi_hba->dev;
3520 	int entries, entries_old = 0, time;
3521 
3522 	for (time = 0; time < timeout_ms; time += delay_ms) {
3523 		entries = hisi_sas_read32(hisi_hba, CQE_SEND_CNT);
3524 		if (entries == entries_old)
3525 			break;
3526 
3527 		entries_old = entries;
3528 		msleep(delay_ms);
3529 	}
3530 
3531 	if (time >= timeout_ms) {
3532 		dev_dbg(dev, "Wait commands complete timeout!\n");
3533 		return;
3534 	}
3535 
3536 	dev_dbg(dev, "wait commands complete %dms\n", time);
3537 
3538 }
3539 
3540 static struct attribute *host_v2_hw_attrs[] = {
3541 	&dev_attr_phy_event_threshold.attr,
3542 	NULL
3543 };
3544 
3545 ATTRIBUTE_GROUPS(host_v2_hw);
3546 
map_queues_v2_hw(struct Scsi_Host * shost)3547 static void map_queues_v2_hw(struct Scsi_Host *shost)
3548 {
3549 	struct hisi_hba *hisi_hba = shost_priv(shost);
3550 	struct blk_mq_queue_map *qmap = &shost->tag_set.map[HCTX_TYPE_DEFAULT];
3551 	const struct cpumask *mask;
3552 	unsigned int queue, cpu;
3553 
3554 	for (queue = 0; queue < qmap->nr_queues; queue++) {
3555 		mask = irq_get_affinity_mask(hisi_hba->irq_map[96 + queue]);
3556 		if (!mask)
3557 			continue;
3558 
3559 		for_each_cpu(cpu, mask)
3560 			qmap->mq_map[cpu] = qmap->queue_offset + queue;
3561 	}
3562 }
3563 
3564 static const struct scsi_host_template sht_v2_hw = {
3565 	.name			= DRV_NAME,
3566 	.proc_name		= DRV_NAME,
3567 	.module			= THIS_MODULE,
3568 	.queuecommand		= sas_queuecommand,
3569 	.dma_need_drain		= ata_scsi_dma_need_drain,
3570 	.target_alloc		= sas_target_alloc,
3571 	.slave_configure	= hisi_sas_slave_configure,
3572 	.scan_finished		= hisi_sas_scan_finished,
3573 	.scan_start		= hisi_sas_scan_start,
3574 	.change_queue_depth	= sas_change_queue_depth,
3575 	.bios_param		= sas_bios_param,
3576 	.this_id		= -1,
3577 	.sg_tablesize		= HISI_SAS_SGE_PAGE_CNT,
3578 	.max_sectors		= SCSI_DEFAULT_MAX_SECTORS,
3579 	.eh_device_reset_handler = sas_eh_device_reset_handler,
3580 	.eh_target_reset_handler = sas_eh_target_reset_handler,
3581 	.slave_alloc		= hisi_sas_slave_alloc,
3582 	.target_destroy		= sas_target_destroy,
3583 	.ioctl			= sas_ioctl,
3584 #ifdef CONFIG_COMPAT
3585 	.compat_ioctl		= sas_ioctl,
3586 #endif
3587 	.shost_groups		= host_v2_hw_groups,
3588 	.host_reset		= hisi_sas_host_reset,
3589 	.map_queues		= map_queues_v2_hw,
3590 	.host_tagset		= 1,
3591 };
3592 
3593 static const struct hisi_sas_hw hisi_sas_v2_hw = {
3594 	.hw_init = hisi_sas_v2_init,
3595 	.interrupt_preinit = hisi_sas_v2_interrupt_preinit,
3596 	.setup_itct = setup_itct_v2_hw,
3597 	.slot_index_alloc = slot_index_alloc_quirk_v2_hw,
3598 	.alloc_dev = alloc_dev_quirk_v2_hw,
3599 	.sl_notify_ssp = sl_notify_ssp_v2_hw,
3600 	.get_wideport_bitmap = get_wideport_bitmap_v2_hw,
3601 	.clear_itct = clear_itct_v2_hw,
3602 	.free_device = free_device_v2_hw,
3603 	.prep_smp = prep_smp_v2_hw,
3604 	.prep_ssp = prep_ssp_v2_hw,
3605 	.prep_stp = prep_ata_v2_hw,
3606 	.prep_abort = prep_abort_v2_hw,
3607 	.start_delivery = start_delivery_v2_hw,
3608 	.phys_init = phys_init_v2_hw,
3609 	.phy_start = start_phy_v2_hw,
3610 	.phy_disable = disable_phy_v2_hw,
3611 	.phy_hard_reset = phy_hard_reset_v2_hw,
3612 	.get_events = phy_get_events_v2_hw,
3613 	.phy_set_linkrate = phy_set_linkrate_v2_hw,
3614 	.phy_get_max_linkrate = phy_get_max_linkrate_v2_hw,
3615 	.complete_hdr_size = sizeof(struct hisi_sas_complete_v2_hdr),
3616 	.soft_reset = soft_reset_v2_hw,
3617 	.get_phys_state = get_phys_state_v2_hw,
3618 	.write_gpio = write_gpio_v2_hw,
3619 	.wait_cmds_complete_timeout = wait_cmds_complete_timeout_v2_hw,
3620 	.sht = &sht_v2_hw,
3621 };
3622 
hisi_sas_v2_probe(struct platform_device * pdev)3623 static int hisi_sas_v2_probe(struct platform_device *pdev)
3624 {
3625 	return hisi_sas_probe(pdev, &hisi_sas_v2_hw);
3626 }
3627 
3628 static const struct of_device_id sas_v2_of_match[] = {
3629 	{ .compatible = "hisilicon,hip06-sas-v2",},
3630 	{ .compatible = "hisilicon,hip07-sas-v2",},
3631 	{},
3632 };
3633 MODULE_DEVICE_TABLE(of, sas_v2_of_match);
3634 
3635 static const struct acpi_device_id sas_v2_acpi_match[] = {
3636 	{ "HISI0162", 0 },
3637 	{ }
3638 };
3639 
3640 MODULE_DEVICE_TABLE(acpi, sas_v2_acpi_match);
3641 
3642 static struct platform_driver hisi_sas_v2_driver = {
3643 	.probe = hisi_sas_v2_probe,
3644 	.remove_new = hisi_sas_remove,
3645 	.driver = {
3646 		.name = DRV_NAME,
3647 		.of_match_table = sas_v2_of_match,
3648 		.acpi_match_table = ACPI_PTR(sas_v2_acpi_match),
3649 	},
3650 };
3651 
3652 module_platform_driver(hisi_sas_v2_driver);
3653 
3654 MODULE_LICENSE("GPL");
3655 MODULE_AUTHOR("John Garry <john.garry@huawei.com>");
3656 MODULE_DESCRIPTION("HISILICON SAS controller v2 hw driver");
3657 MODULE_ALIAS("platform:" DRV_NAME);
3658