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[mirror_ubuntu-bionic-kernel.git] / drivers / scsi / hisi_sas / hisi_sas_v3_hw.c
1 /*
2 * Copyright (c) 2017 Hisilicon Limited.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 */
10
11 #include "hisi_sas.h"
12 #define DRV_NAME "hisi_sas_v3_hw"
13
14 /* global registers need init*/
15 #define DLVRY_QUEUE_ENABLE 0x0
16 #define IOST_BASE_ADDR_LO 0x8
17 #define IOST_BASE_ADDR_HI 0xc
18 #define ITCT_BASE_ADDR_LO 0x10
19 #define ITCT_BASE_ADDR_HI 0x14
20 #define IO_BROKEN_MSG_ADDR_LO 0x18
21 #define IO_BROKEN_MSG_ADDR_HI 0x1c
22 #define PHY_CONTEXT 0x20
23 #define PHY_STATE 0x24
24 #define PHY_PORT_NUM_MA 0x28
25 #define PHY_CONN_RATE 0x30
26 #define AXI_AHB_CLK_CFG 0x3c
27 #define ITCT_CLR 0x44
28 #define ITCT_CLR_EN_OFF 16
29 #define ITCT_CLR_EN_MSK (0x1 << ITCT_CLR_EN_OFF)
30 #define ITCT_DEV_OFF 0
31 #define ITCT_DEV_MSK (0x7ff << ITCT_DEV_OFF)
32 #define AXI_USER1 0x48
33 #define AXI_USER2 0x4c
34 #define IO_SATA_BROKEN_MSG_ADDR_LO 0x58
35 #define IO_SATA_BROKEN_MSG_ADDR_HI 0x5c
36 #define SATA_INITI_D2H_STORE_ADDR_LO 0x60
37 #define SATA_INITI_D2H_STORE_ADDR_HI 0x64
38 #define CFG_MAX_TAG 0x68
39 #define HGC_SAS_TX_OPEN_FAIL_RETRY_CTRL 0x84
40 #define HGC_SAS_TXFAIL_RETRY_CTRL 0x88
41 #define HGC_GET_ITV_TIME 0x90
42 #define DEVICE_MSG_WORK_MODE 0x94
43 #define OPENA_WT_CONTI_TIME 0x9c
44 #define I_T_NEXUS_LOSS_TIME 0xa0
45 #define MAX_CON_TIME_LIMIT_TIME 0xa4
46 #define BUS_INACTIVE_LIMIT_TIME 0xa8
47 #define REJECT_TO_OPEN_LIMIT_TIME 0xac
48 #define CFG_AGING_TIME 0xbc
49 #define HGC_DFX_CFG2 0xc0
50 #define CFG_ABT_SET_QUERY_IPTT 0xd4
51 #define CFG_SET_ABORTED_IPTT_OFF 0
52 #define CFG_SET_ABORTED_IPTT_MSK (0xfff << CFG_SET_ABORTED_IPTT_OFF)
53 #define CFG_SET_ABORTED_EN_OFF 12
54 #define CFG_ABT_SET_IPTT_DONE 0xd8
55 #define CFG_ABT_SET_IPTT_DONE_OFF 0
56 #define HGC_IOMB_PROC1_STATUS 0x104
57 #define CFG_1US_TIMER_TRSH 0xcc
58 #define CHNL_INT_STATUS 0x148
59 #define INT_COAL_EN 0x19c
60 #define OQ_INT_COAL_TIME 0x1a0
61 #define OQ_INT_COAL_CNT 0x1a4
62 #define ENT_INT_COAL_TIME 0x1a8
63 #define ENT_INT_COAL_CNT 0x1ac
64 #define OQ_INT_SRC 0x1b0
65 #define OQ_INT_SRC_MSK 0x1b4
66 #define ENT_INT_SRC1 0x1b8
67 #define ENT_INT_SRC1_D2H_FIS_CH0_OFF 0
68 #define ENT_INT_SRC1_D2H_FIS_CH0_MSK (0x1 << ENT_INT_SRC1_D2H_FIS_CH0_OFF)
69 #define ENT_INT_SRC1_D2H_FIS_CH1_OFF 8
70 #define ENT_INT_SRC1_D2H_FIS_CH1_MSK (0x1 << ENT_INT_SRC1_D2H_FIS_CH1_OFF)
71 #define ENT_INT_SRC2 0x1bc
72 #define ENT_INT_SRC3 0x1c0
73 #define ENT_INT_SRC3_WP_DEPTH_OFF 8
74 #define ENT_INT_SRC3_IPTT_SLOT_NOMATCH_OFF 9
75 #define ENT_INT_SRC3_RP_DEPTH_OFF 10
76 #define ENT_INT_SRC3_AXI_OFF 11
77 #define ENT_INT_SRC3_FIFO_OFF 12
78 #define ENT_INT_SRC3_LM_OFF 14
79 #define ENT_INT_SRC3_ITC_INT_OFF 15
80 #define ENT_INT_SRC3_ITC_INT_MSK (0x1 << ENT_INT_SRC3_ITC_INT_OFF)
81 #define ENT_INT_SRC3_ABT_OFF 16
82 #define ENT_INT_SRC_MSK1 0x1c4
83 #define ENT_INT_SRC_MSK2 0x1c8
84 #define ENT_INT_SRC_MSK3 0x1cc
85 #define ENT_INT_SRC_MSK3_ENT95_MSK_OFF 31
86 #define CHNL_PHYUPDOWN_INT_MSK 0x1d0
87 #define CHNL_ENT_INT_MSK 0x1d4
88 #define HGC_COM_INT_MSK 0x1d8
89 #define ENT_INT_SRC_MSK3_ENT95_MSK_MSK (0x1 << ENT_INT_SRC_MSK3_ENT95_MSK_OFF)
90 #define SAS_ECC_INTR 0x1e8
91 #define SAS_ECC_INTR_MSK 0x1ec
92 #define HGC_ERR_STAT_EN 0x238
93 #define DLVRY_Q_0_BASE_ADDR_LO 0x260
94 #define DLVRY_Q_0_BASE_ADDR_HI 0x264
95 #define DLVRY_Q_0_DEPTH 0x268
96 #define DLVRY_Q_0_WR_PTR 0x26c
97 #define DLVRY_Q_0_RD_PTR 0x270
98 #define HYPER_STREAM_ID_EN_CFG 0xc80
99 #define OQ0_INT_SRC_MSK 0xc90
100 #define COMPL_Q_0_BASE_ADDR_LO 0x4e0
101 #define COMPL_Q_0_BASE_ADDR_HI 0x4e4
102 #define COMPL_Q_0_DEPTH 0x4e8
103 #define COMPL_Q_0_WR_PTR 0x4ec
104 #define COMPL_Q_0_RD_PTR 0x4f0
105 #define AWQOS_AWCACHE_CFG 0xc84
106 #define ARQOS_ARCACHE_CFG 0xc88
107
108 /* phy registers requiring init */
109 #define PORT_BASE (0x2000)
110 #define PHY_CFG (PORT_BASE + 0x0)
111 #define HARD_PHY_LINKRATE (PORT_BASE + 0x4)
112 #define PHY_CFG_ENA_OFF 0
113 #define PHY_CFG_ENA_MSK (0x1 << PHY_CFG_ENA_OFF)
114 #define PHY_CFG_DC_OPT_OFF 2
115 #define PHY_CFG_DC_OPT_MSK (0x1 << PHY_CFG_DC_OPT_OFF)
116 #define PROG_PHY_LINK_RATE (PORT_BASE + 0x8)
117 #define PHY_CTRL (PORT_BASE + 0x14)
118 #define PHY_CTRL_RESET_OFF 0
119 #define PHY_CTRL_RESET_MSK (0x1 << PHY_CTRL_RESET_OFF)
120 #define SL_CFG (PORT_BASE + 0x84)
121 #define SL_CONTROL (PORT_BASE + 0x94)
122 #define SL_CONTROL_NOTIFY_EN_OFF 0
123 #define SL_CONTROL_NOTIFY_EN_MSK (0x1 << SL_CONTROL_NOTIFY_EN_OFF)
124 #define SL_CTA_OFF 17
125 #define SL_CTA_MSK (0x1 << SL_CTA_OFF)
126 #define TX_ID_DWORD0 (PORT_BASE + 0x9c)
127 #define TX_ID_DWORD1 (PORT_BASE + 0xa0)
128 #define TX_ID_DWORD2 (PORT_BASE + 0xa4)
129 #define TX_ID_DWORD3 (PORT_BASE + 0xa8)
130 #define TX_ID_DWORD4 (PORT_BASE + 0xaC)
131 #define TX_ID_DWORD5 (PORT_BASE + 0xb0)
132 #define TX_ID_DWORD6 (PORT_BASE + 0xb4)
133 #define TXID_AUTO (PORT_BASE + 0xb8)
134 #define CT3_OFF 1
135 #define CT3_MSK (0x1 << CT3_OFF)
136 #define TX_HARDRST_OFF 2
137 #define TX_HARDRST_MSK (0x1 << TX_HARDRST_OFF)
138 #define RX_IDAF_DWORD0 (PORT_BASE + 0xc4)
139 #define RXOP_CHECK_CFG_H (PORT_BASE + 0xfc)
140 #define SAS_SSP_CON_TIMER_CFG (PORT_BASE + 0x134)
141 #define SAS_SMP_CON_TIMER_CFG (PORT_BASE + 0x138)
142 #define SAS_STP_CON_TIMER_CFG (PORT_BASE + 0x13c)
143 #define CHL_INT0 (PORT_BASE + 0x1b4)
144 #define CHL_INT0_HOTPLUG_TOUT_OFF 0
145 #define CHL_INT0_HOTPLUG_TOUT_MSK (0x1 << CHL_INT0_HOTPLUG_TOUT_OFF)
146 #define CHL_INT0_SL_RX_BCST_ACK_OFF 1
147 #define CHL_INT0_SL_RX_BCST_ACK_MSK (0x1 << CHL_INT0_SL_RX_BCST_ACK_OFF)
148 #define CHL_INT0_SL_PHY_ENABLE_OFF 2
149 #define CHL_INT0_SL_PHY_ENABLE_MSK (0x1 << CHL_INT0_SL_PHY_ENABLE_OFF)
150 #define CHL_INT0_NOT_RDY_OFF 4
151 #define CHL_INT0_NOT_RDY_MSK (0x1 << CHL_INT0_NOT_RDY_OFF)
152 #define CHL_INT0_PHY_RDY_OFF 5
153 #define CHL_INT0_PHY_RDY_MSK (0x1 << CHL_INT0_PHY_RDY_OFF)
154 #define CHL_INT1 (PORT_BASE + 0x1b8)
155 #define CHL_INT1_DMAC_TX_ECC_ERR_OFF 15
156 #define CHL_INT1_DMAC_TX_ECC_ERR_MSK (0x1 << CHL_INT1_DMAC_TX_ECC_ERR_OFF)
157 #define CHL_INT1_DMAC_RX_ECC_ERR_OFF 17
158 #define CHL_INT1_DMAC_RX_ECC_ERR_MSK (0x1 << CHL_INT1_DMAC_RX_ECC_ERR_OFF)
159 #define CHL_INT2 (PORT_BASE + 0x1bc)
160 #define CHL_INT0_MSK (PORT_BASE + 0x1c0)
161 #define CHL_INT1_MSK (PORT_BASE + 0x1c4)
162 #define CHL_INT2_MSK (PORT_BASE + 0x1c8)
163 #define CHL_INT_COAL_EN (PORT_BASE + 0x1d0)
164 #define PHY_CTRL_RDY_MSK (PORT_BASE + 0x2b0)
165 #define PHYCTRL_NOT_RDY_MSK (PORT_BASE + 0x2b4)
166 #define PHYCTRL_DWS_RESET_MSK (PORT_BASE + 0x2b8)
167 #define PHYCTRL_PHY_ENA_MSK (PORT_BASE + 0x2bc)
168 #define SL_RX_BCAST_CHK_MSK (PORT_BASE + 0x2c0)
169 #define PHYCTRL_OOB_RESTART_MSK (PORT_BASE + 0x2c4)
170
171 /* HW dma structures */
172 /* Delivery queue header */
173 /* dw0 */
174 #define CMD_HDR_ABORT_FLAG_OFF 0
175 #define CMD_HDR_ABORT_FLAG_MSK (0x3 << CMD_HDR_ABORT_FLAG_OFF)
176 #define CMD_HDR_ABORT_DEVICE_TYPE_OFF 2
177 #define CMD_HDR_ABORT_DEVICE_TYPE_MSK (0x1 << CMD_HDR_ABORT_DEVICE_TYPE_OFF)
178 #define CMD_HDR_RESP_REPORT_OFF 5
179 #define CMD_HDR_RESP_REPORT_MSK (0x1 << CMD_HDR_RESP_REPORT_OFF)
180 #define CMD_HDR_TLR_CTRL_OFF 6
181 #define CMD_HDR_TLR_CTRL_MSK (0x3 << CMD_HDR_TLR_CTRL_OFF)
182 #define CMD_HDR_PORT_OFF 18
183 #define CMD_HDR_PORT_MSK (0xf << CMD_HDR_PORT_OFF)
184 #define CMD_HDR_PRIORITY_OFF 27
185 #define CMD_HDR_PRIORITY_MSK (0x1 << CMD_HDR_PRIORITY_OFF)
186 #define CMD_HDR_CMD_OFF 29
187 #define CMD_HDR_CMD_MSK (0x7 << CMD_HDR_CMD_OFF)
188 /* dw1 */
189 #define CMD_HDR_UNCON_CMD_OFF 3
190 #define CMD_HDR_DIR_OFF 5
191 #define CMD_HDR_DIR_MSK (0x3 << CMD_HDR_DIR_OFF)
192 #define CMD_HDR_RESET_OFF 7
193 #define CMD_HDR_RESET_MSK (0x1 << CMD_HDR_RESET_OFF)
194 #define CMD_HDR_VDTL_OFF 10
195 #define CMD_HDR_VDTL_MSK (0x1 << CMD_HDR_VDTL_OFF)
196 #define CMD_HDR_FRAME_TYPE_OFF 11
197 #define CMD_HDR_FRAME_TYPE_MSK (0x1f << CMD_HDR_FRAME_TYPE_OFF)
198 #define CMD_HDR_DEV_ID_OFF 16
199 #define CMD_HDR_DEV_ID_MSK (0xffff << CMD_HDR_DEV_ID_OFF)
200 /* dw2 */
201 #define CMD_HDR_CFL_OFF 0
202 #define CMD_HDR_CFL_MSK (0x1ff << CMD_HDR_CFL_OFF)
203 #define CMD_HDR_NCQ_TAG_OFF 10
204 #define CMD_HDR_NCQ_TAG_MSK (0x1f << CMD_HDR_NCQ_TAG_OFF)
205 #define CMD_HDR_MRFL_OFF 15
206 #define CMD_HDR_MRFL_MSK (0x1ff << CMD_HDR_MRFL_OFF)
207 #define CMD_HDR_SG_MOD_OFF 24
208 #define CMD_HDR_SG_MOD_MSK (0x3 << CMD_HDR_SG_MOD_OFF)
209 /* dw3 */
210 #define CMD_HDR_IPTT_OFF 0
211 #define CMD_HDR_IPTT_MSK (0xffff << CMD_HDR_IPTT_OFF)
212 /* dw6 */
213 #define CMD_HDR_DIF_SGL_LEN_OFF 0
214 #define CMD_HDR_DIF_SGL_LEN_MSK (0xffff << CMD_HDR_DIF_SGL_LEN_OFF)
215 #define CMD_HDR_DATA_SGL_LEN_OFF 16
216 #define CMD_HDR_DATA_SGL_LEN_MSK (0xffff << CMD_HDR_DATA_SGL_LEN_OFF)
217 /* dw7 */
218 #define CMD_HDR_ADDR_MODE_SEL_OFF 15
219 #define CMD_HDR_ADDR_MODE_SEL_MSK (1 << CMD_HDR_ADDR_MODE_SEL_OFF)
220 #define CMD_HDR_ABORT_IPTT_OFF 16
221 #define CMD_HDR_ABORT_IPTT_MSK (0xffff << CMD_HDR_ABORT_IPTT_OFF)
222
223 /* Completion header */
224 /* dw0 */
225 #define CMPLT_HDR_CMPLT_OFF 0
226 #define CMPLT_HDR_CMPLT_MSK (0x3 << CMPLT_HDR_CMPLT_OFF)
227 #define CMPLT_HDR_ERROR_PHASE_OFF 2
228 #define CMPLT_HDR_ERROR_PHASE_MSK (0xff << CMPLT_HDR_ERROR_PHASE_OFF)
229 #define CMPLT_HDR_RSPNS_XFRD_OFF 10
230 #define CMPLT_HDR_RSPNS_XFRD_MSK (0x1 << CMPLT_HDR_RSPNS_XFRD_OFF)
231 #define CMPLT_HDR_ERX_OFF 12
232 #define CMPLT_HDR_ERX_MSK (0x1 << CMPLT_HDR_ERX_OFF)
233 #define CMPLT_HDR_ABORT_STAT_OFF 13
234 #define CMPLT_HDR_ABORT_STAT_MSK (0x7 << CMPLT_HDR_ABORT_STAT_OFF)
235 /* abort_stat */
236 #define STAT_IO_NOT_VALID 0x1
237 #define STAT_IO_NO_DEVICE 0x2
238 #define STAT_IO_COMPLETE 0x3
239 #define STAT_IO_ABORTED 0x4
240 /* dw1 */
241 #define CMPLT_HDR_IPTT_OFF 0
242 #define CMPLT_HDR_IPTT_MSK (0xffff << CMPLT_HDR_IPTT_OFF)
243 #define CMPLT_HDR_DEV_ID_OFF 16
244 #define CMPLT_HDR_DEV_ID_MSK (0xffff << CMPLT_HDR_DEV_ID_OFF)
245 /* dw3 */
246 #define CMPLT_HDR_IO_IN_TARGET_OFF 17
247 #define CMPLT_HDR_IO_IN_TARGET_MSK (0x1 << CMPLT_HDR_IO_IN_TARGET_OFF)
248
249 /* ITCT header */
250 /* qw0 */
251 #define ITCT_HDR_DEV_TYPE_OFF 0
252 #define ITCT_HDR_DEV_TYPE_MSK (0x3 << ITCT_HDR_DEV_TYPE_OFF)
253 #define ITCT_HDR_VALID_OFF 2
254 #define ITCT_HDR_VALID_MSK (0x1 << ITCT_HDR_VALID_OFF)
255 #define ITCT_HDR_MCR_OFF 5
256 #define ITCT_HDR_MCR_MSK (0xf << ITCT_HDR_MCR_OFF)
257 #define ITCT_HDR_VLN_OFF 9
258 #define ITCT_HDR_VLN_MSK (0xf << ITCT_HDR_VLN_OFF)
259 #define ITCT_HDR_SMP_TIMEOUT_OFF 16
260 #define ITCT_HDR_AWT_CONTINUE_OFF 25
261 #define ITCT_HDR_PORT_ID_OFF 28
262 #define ITCT_HDR_PORT_ID_MSK (0xf << ITCT_HDR_PORT_ID_OFF)
263 /* qw2 */
264 #define ITCT_HDR_INLT_OFF 0
265 #define ITCT_HDR_INLT_MSK (0xffffULL << ITCT_HDR_INLT_OFF)
266 #define ITCT_HDR_RTOLT_OFF 48
267 #define ITCT_HDR_RTOLT_MSK (0xffffULL << ITCT_HDR_RTOLT_OFF)
268
269 struct hisi_sas_complete_v3_hdr {
270 __le32 dw0;
271 __le32 dw1;
272 __le32 act;
273 __le32 dw3;
274 };
275
276 struct hisi_sas_err_record_v3 {
277 /* dw0 */
278 __le32 trans_tx_fail_type;
279
280 /* dw1 */
281 __le32 trans_rx_fail_type;
282
283 /* dw2 */
284 __le16 dma_tx_err_type;
285 __le16 sipc_rx_err_type;
286
287 /* dw3 */
288 __le32 dma_rx_err_type;
289 };
290
291 #define RX_DATA_LEN_UNDERFLOW_OFF 6
292 #define RX_DATA_LEN_UNDERFLOW_MSK (1 << RX_DATA_LEN_UNDERFLOW_OFF)
293
294 #define HISI_SAS_COMMAND_ENTRIES_V3_HW 4096
295 #define HISI_SAS_MSI_COUNT_V3_HW 32
296
297 enum {
298 HISI_SAS_PHY_PHY_UPDOWN,
299 HISI_SAS_PHY_CHNL_INT,
300 HISI_SAS_PHY_INT_NR
301 };
302
303 #define DIR_NO_DATA 0
304 #define DIR_TO_INI 1
305 #define DIR_TO_DEVICE 2
306 #define DIR_RESERVED 3
307
308 #define CMD_IS_UNCONSTRAINT(cmd) \
309 ((cmd == ATA_CMD_READ_LOG_EXT) || \
310 (cmd == ATA_CMD_READ_LOG_DMA_EXT) || \
311 (cmd == ATA_CMD_DEV_RESET))
312
313 static u32 hisi_sas_read32(struct hisi_hba *hisi_hba, u32 off)
314 {
315 void __iomem *regs = hisi_hba->regs + off;
316
317 return readl(regs);
318 }
319
320 static u32 hisi_sas_read32_relaxed(struct hisi_hba *hisi_hba, u32 off)
321 {
322 void __iomem *regs = hisi_hba->regs + off;
323
324 return readl_relaxed(regs);
325 }
326
327 static void hisi_sas_write32(struct hisi_hba *hisi_hba, u32 off, u32 val)
328 {
329 void __iomem *regs = hisi_hba->regs + off;
330
331 writel(val, regs);
332 }
333
334 static void hisi_sas_phy_write32(struct hisi_hba *hisi_hba, int phy_no,
335 u32 off, u32 val)
336 {
337 void __iomem *regs = hisi_hba->regs + (0x400 * phy_no) + off;
338
339 writel(val, regs);
340 }
341
342 static u32 hisi_sas_phy_read32(struct hisi_hba *hisi_hba,
343 int phy_no, u32 off)
344 {
345 void __iomem *regs = hisi_hba->regs + (0x400 * phy_no) + off;
346
347 return readl(regs);
348 }
349
350 static void init_reg_v3_hw(struct hisi_hba *hisi_hba)
351 {
352 int i;
353
354 /* Global registers init */
355 hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE,
356 (u32)((1ULL << hisi_hba->queue_count) - 1));
357 hisi_sas_write32(hisi_hba, AXI_USER1, 0x0);
358 hisi_sas_write32(hisi_hba, AXI_USER2, 0x40000060);
359 hisi_sas_write32(hisi_hba, HGC_SAS_TXFAIL_RETRY_CTRL, 0x108);
360 hisi_sas_write32(hisi_hba, CFG_1US_TIMER_TRSH, 0xd);
361 hisi_sas_write32(hisi_hba, INT_COAL_EN, 0x1);
362 hisi_sas_write32(hisi_hba, OQ_INT_COAL_TIME, 0x1);
363 hisi_sas_write32(hisi_hba, OQ_INT_COAL_CNT, 0x1);
364 hisi_sas_write32(hisi_hba, OQ_INT_SRC, 0xffff);
365 hisi_sas_write32(hisi_hba, ENT_INT_SRC1, 0xffffffff);
366 hisi_sas_write32(hisi_hba, ENT_INT_SRC2, 0xffffffff);
367 hisi_sas_write32(hisi_hba, ENT_INT_SRC3, 0xffffffff);
368 hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1, 0xfefefefe);
369 hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK2, 0xfefefefe);
370 hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, 0xffffffff);
371 hisi_sas_write32(hisi_hba, CHNL_PHYUPDOWN_INT_MSK, 0x0);
372 hisi_sas_write32(hisi_hba, CHNL_ENT_INT_MSK, 0x0);
373 hisi_sas_write32(hisi_hba, HGC_COM_INT_MSK, 0x0);
374 hisi_sas_write32(hisi_hba, SAS_ECC_INTR_MSK, 0xfff00c30);
375 hisi_sas_write32(hisi_hba, AWQOS_AWCACHE_CFG, 0xf0f0);
376 hisi_sas_write32(hisi_hba, ARQOS_ARCACHE_CFG, 0xf0f0);
377 for (i = 0; i < hisi_hba->queue_count; i++)
378 hisi_sas_write32(hisi_hba, OQ0_INT_SRC_MSK+0x4*i, 0);
379
380 hisi_sas_write32(hisi_hba, AXI_AHB_CLK_CFG, 1);
381 hisi_sas_write32(hisi_hba, HYPER_STREAM_ID_EN_CFG, 1);
382 hisi_sas_write32(hisi_hba, CFG_MAX_TAG, 0xfff07fff);
383
384 for (i = 0; i < hisi_hba->n_phy; i++) {
385 hisi_sas_phy_write32(hisi_hba, i, PROG_PHY_LINK_RATE, 0x801);
386 hisi_sas_phy_write32(hisi_hba, i, CHL_INT0, 0xffffffff);
387 hisi_sas_phy_write32(hisi_hba, i, CHL_INT1, 0xffffffff);
388 hisi_sas_phy_write32(hisi_hba, i, CHL_INT2, 0xffffffff);
389 hisi_sas_phy_write32(hisi_hba, i, RXOP_CHECK_CFG_H, 0x1000);
390 hisi_sas_phy_write32(hisi_hba, i, CHL_INT1_MSK, 0xffffffff);
391 hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x8ffffbff);
392 hisi_sas_phy_write32(hisi_hba, i, SL_CFG, 0x83f801fc);
393 hisi_sas_phy_write32(hisi_hba, i, PHY_CTRL_RDY_MSK, 0x0);
394 hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_NOT_RDY_MSK, 0x0);
395 hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_DWS_RESET_MSK, 0x0);
396 hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_PHY_ENA_MSK, 0x0);
397 hisi_sas_phy_write32(hisi_hba, i, SL_RX_BCAST_CHK_MSK, 0x0);
398 hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_OOB_RESTART_MSK, 0x0);
399 hisi_sas_phy_write32(hisi_hba, i, PHY_CTRL, 0x199b4fa);
400 hisi_sas_phy_write32(hisi_hba, i, SAS_SSP_CON_TIMER_CFG,
401 0xa0064);
402 hisi_sas_phy_write32(hisi_hba, i, SAS_STP_CON_TIMER_CFG,
403 0xa0064);
404 }
405 for (i = 0; i < hisi_hba->queue_count; i++) {
406 /* Delivery queue */
407 hisi_sas_write32(hisi_hba,
408 DLVRY_Q_0_BASE_ADDR_HI + (i * 0x14),
409 upper_32_bits(hisi_hba->cmd_hdr_dma[i]));
410
411 hisi_sas_write32(hisi_hba, DLVRY_Q_0_BASE_ADDR_LO + (i * 0x14),
412 lower_32_bits(hisi_hba->cmd_hdr_dma[i]));
413
414 hisi_sas_write32(hisi_hba, DLVRY_Q_0_DEPTH + (i * 0x14),
415 HISI_SAS_QUEUE_SLOTS);
416
417 /* Completion queue */
418 hisi_sas_write32(hisi_hba, COMPL_Q_0_BASE_ADDR_HI + (i * 0x14),
419 upper_32_bits(hisi_hba->complete_hdr_dma[i]));
420
421 hisi_sas_write32(hisi_hba, COMPL_Q_0_BASE_ADDR_LO + (i * 0x14),
422 lower_32_bits(hisi_hba->complete_hdr_dma[i]));
423
424 hisi_sas_write32(hisi_hba, COMPL_Q_0_DEPTH + (i * 0x14),
425 HISI_SAS_QUEUE_SLOTS);
426 }
427
428 /* itct */
429 hisi_sas_write32(hisi_hba, ITCT_BASE_ADDR_LO,
430 lower_32_bits(hisi_hba->itct_dma));
431
432 hisi_sas_write32(hisi_hba, ITCT_BASE_ADDR_HI,
433 upper_32_bits(hisi_hba->itct_dma));
434
435 /* iost */
436 hisi_sas_write32(hisi_hba, IOST_BASE_ADDR_LO,
437 lower_32_bits(hisi_hba->iost_dma));
438
439 hisi_sas_write32(hisi_hba, IOST_BASE_ADDR_HI,
440 upper_32_bits(hisi_hba->iost_dma));
441
442 /* breakpoint */
443 hisi_sas_write32(hisi_hba, IO_BROKEN_MSG_ADDR_LO,
444 lower_32_bits(hisi_hba->breakpoint_dma));
445
446 hisi_sas_write32(hisi_hba, IO_BROKEN_MSG_ADDR_HI,
447 upper_32_bits(hisi_hba->breakpoint_dma));
448
449 /* SATA broken msg */
450 hisi_sas_write32(hisi_hba, IO_SATA_BROKEN_MSG_ADDR_LO,
451 lower_32_bits(hisi_hba->sata_breakpoint_dma));
452
453 hisi_sas_write32(hisi_hba, IO_SATA_BROKEN_MSG_ADDR_HI,
454 upper_32_bits(hisi_hba->sata_breakpoint_dma));
455
456 /* SATA initial fis */
457 hisi_sas_write32(hisi_hba, SATA_INITI_D2H_STORE_ADDR_LO,
458 lower_32_bits(hisi_hba->initial_fis_dma));
459
460 hisi_sas_write32(hisi_hba, SATA_INITI_D2H_STORE_ADDR_HI,
461 upper_32_bits(hisi_hba->initial_fis_dma));
462 }
463
464 static void config_phy_opt_mode_v3_hw(struct hisi_hba *hisi_hba, int phy_no)
465 {
466 u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
467
468 cfg &= ~PHY_CFG_DC_OPT_MSK;
469 cfg |= 1 << PHY_CFG_DC_OPT_OFF;
470 hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
471 }
472
473 static void config_id_frame_v3_hw(struct hisi_hba *hisi_hba, int phy_no)
474 {
475 struct sas_identify_frame identify_frame;
476 u32 *identify_buffer;
477
478 memset(&identify_frame, 0, sizeof(identify_frame));
479 identify_frame.dev_type = SAS_END_DEVICE;
480 identify_frame.frame_type = 0;
481 identify_frame._un1 = 1;
482 identify_frame.initiator_bits = SAS_PROTOCOL_ALL;
483 identify_frame.target_bits = SAS_PROTOCOL_NONE;
484 memcpy(&identify_frame._un4_11[0], hisi_hba->sas_addr, SAS_ADDR_SIZE);
485 memcpy(&identify_frame.sas_addr[0], hisi_hba->sas_addr, SAS_ADDR_SIZE);
486 identify_frame.phy_id = phy_no;
487 identify_buffer = (u32 *)(&identify_frame);
488
489 hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD0,
490 __swab32(identify_buffer[0]));
491 hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD1,
492 __swab32(identify_buffer[1]));
493 hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD2,
494 __swab32(identify_buffer[2]));
495 hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD3,
496 __swab32(identify_buffer[3]));
497 hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD4,
498 __swab32(identify_buffer[4]));
499 hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD5,
500 __swab32(identify_buffer[5]));
501 }
502
503 static void setup_itct_v3_hw(struct hisi_hba *hisi_hba,
504 struct hisi_sas_device *sas_dev)
505 {
506 struct domain_device *device = sas_dev->sas_device;
507 struct device *dev = hisi_hba->dev;
508 u64 qw0, device_id = sas_dev->device_id;
509 struct hisi_sas_itct *itct = &hisi_hba->itct[device_id];
510 struct domain_device *parent_dev = device->parent;
511 struct asd_sas_port *sas_port = device->port;
512 struct hisi_sas_port *port = to_hisi_sas_port(sas_port);
513
514 memset(itct, 0, sizeof(*itct));
515
516 /* qw0 */
517 qw0 = 0;
518 switch (sas_dev->dev_type) {
519 case SAS_END_DEVICE:
520 case SAS_EDGE_EXPANDER_DEVICE:
521 case SAS_FANOUT_EXPANDER_DEVICE:
522 qw0 = HISI_SAS_DEV_TYPE_SSP << ITCT_HDR_DEV_TYPE_OFF;
523 break;
524 case SAS_SATA_DEV:
525 case SAS_SATA_PENDING:
526 if (parent_dev && DEV_IS_EXPANDER(parent_dev->dev_type))
527 qw0 = HISI_SAS_DEV_TYPE_STP << ITCT_HDR_DEV_TYPE_OFF;
528 else
529 qw0 = HISI_SAS_DEV_TYPE_SATA << ITCT_HDR_DEV_TYPE_OFF;
530 break;
531 default:
532 dev_warn(dev, "setup itct: unsupported dev type (%d)\n",
533 sas_dev->dev_type);
534 }
535
536 qw0 |= ((1 << ITCT_HDR_VALID_OFF) |
537 (device->linkrate << ITCT_HDR_MCR_OFF) |
538 (1 << ITCT_HDR_VLN_OFF) |
539 (0xfa << ITCT_HDR_SMP_TIMEOUT_OFF) |
540 (1 << ITCT_HDR_AWT_CONTINUE_OFF) |
541 (port->id << ITCT_HDR_PORT_ID_OFF));
542 itct->qw0 = cpu_to_le64(qw0);
543
544 /* qw1 */
545 memcpy(&itct->sas_addr, device->sas_addr, SAS_ADDR_SIZE);
546 itct->sas_addr = __swab64(itct->sas_addr);
547
548 /* qw2 */
549 if (!dev_is_sata(device))
550 itct->qw2 = cpu_to_le64((5000ULL << ITCT_HDR_INLT_OFF) |
551 (0x1ULL << ITCT_HDR_RTOLT_OFF));
552 }
553
554 static void free_device_v3_hw(struct hisi_hba *hisi_hba,
555 struct hisi_sas_device *sas_dev)
556 {
557 u64 dev_id = sas_dev->device_id;
558 struct device *dev = hisi_hba->dev;
559 struct hisi_sas_itct *itct = &hisi_hba->itct[dev_id];
560 u32 reg_val = hisi_sas_read32(hisi_hba, ENT_INT_SRC3);
561
562 /* clear the itct interrupt state */
563 if (ENT_INT_SRC3_ITC_INT_MSK & reg_val)
564 hisi_sas_write32(hisi_hba, ENT_INT_SRC3,
565 ENT_INT_SRC3_ITC_INT_MSK);
566
567 /* clear the itct table*/
568 reg_val = hisi_sas_read32(hisi_hba, ITCT_CLR);
569 reg_val |= ITCT_CLR_EN_MSK | (dev_id & ITCT_DEV_MSK);
570 hisi_sas_write32(hisi_hba, ITCT_CLR, reg_val);
571
572 udelay(10);
573 reg_val = hisi_sas_read32(hisi_hba, ENT_INT_SRC3);
574 if (ENT_INT_SRC3_ITC_INT_MSK & reg_val) {
575 dev_dbg(dev, "got clear ITCT done interrupt\n");
576
577 /* invalid the itct state*/
578 memset(itct, 0, sizeof(struct hisi_sas_itct));
579 hisi_sas_write32(hisi_hba, ENT_INT_SRC3,
580 ENT_INT_SRC3_ITC_INT_MSK);
581 hisi_hba->devices[dev_id].dev_type = SAS_PHY_UNUSED;
582 hisi_hba->devices[dev_id].dev_status = HISI_SAS_DEV_NORMAL;
583
584 /* clear the itct */
585 hisi_sas_write32(hisi_hba, ITCT_CLR, 0);
586 dev_dbg(dev, "clear ITCT ok\n");
587 }
588 }
589
590 static void dereg_device_v3_hw(struct hisi_hba *hisi_hba,
591 struct domain_device *device)
592 {
593 struct hisi_sas_slot *slot, *slot2;
594 struct hisi_sas_device *sas_dev = device->lldd_dev;
595 u32 cfg_abt_set_query_iptt;
596
597 cfg_abt_set_query_iptt = hisi_sas_read32(hisi_hba,
598 CFG_ABT_SET_QUERY_IPTT);
599 list_for_each_entry_safe(slot, slot2, &sas_dev->list, entry) {
600 cfg_abt_set_query_iptt &= ~CFG_SET_ABORTED_IPTT_MSK;
601 cfg_abt_set_query_iptt |= (1 << CFG_SET_ABORTED_EN_OFF) |
602 (slot->idx << CFG_SET_ABORTED_IPTT_OFF);
603 hisi_sas_write32(hisi_hba, CFG_ABT_SET_QUERY_IPTT,
604 cfg_abt_set_query_iptt);
605 }
606 cfg_abt_set_query_iptt &= ~(1 << CFG_SET_ABORTED_EN_OFF);
607 hisi_sas_write32(hisi_hba, CFG_ABT_SET_QUERY_IPTT,
608 cfg_abt_set_query_iptt);
609 hisi_sas_write32(hisi_hba, CFG_ABT_SET_IPTT_DONE,
610 1 << CFG_ABT_SET_IPTT_DONE_OFF);
611 }
612
613 static int hw_init_v3_hw(struct hisi_hba *hisi_hba)
614 {
615 init_reg_v3_hw(hisi_hba);
616
617 return 0;
618 }
619
620 static void enable_phy_v3_hw(struct hisi_hba *hisi_hba, int phy_no)
621 {
622 u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
623
624 cfg |= PHY_CFG_ENA_MSK;
625 hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
626 }
627
628 static void disable_phy_v3_hw(struct hisi_hba *hisi_hba, int phy_no)
629 {
630 u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
631
632 cfg &= ~PHY_CFG_ENA_MSK;
633 hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
634 }
635
636 static void start_phy_v3_hw(struct hisi_hba *hisi_hba, int phy_no)
637 {
638 config_id_frame_v3_hw(hisi_hba, phy_no);
639 config_phy_opt_mode_v3_hw(hisi_hba, phy_no);
640 enable_phy_v3_hw(hisi_hba, phy_no);
641 }
642
643 static void stop_phy_v3_hw(struct hisi_hba *hisi_hba, int phy_no)
644 {
645 disable_phy_v3_hw(hisi_hba, phy_no);
646 }
647
648 static void start_phys_v3_hw(struct hisi_hba *hisi_hba)
649 {
650 int i;
651
652 for (i = 0; i < hisi_hba->n_phy; i++)
653 start_phy_v3_hw(hisi_hba, i);
654 }
655
656 static void phy_hard_reset_v3_hw(struct hisi_hba *hisi_hba, int phy_no)
657 {
658 struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
659 u32 txid_auto;
660
661 stop_phy_v3_hw(hisi_hba, phy_no);
662 if (phy->identify.device_type == SAS_END_DEVICE) {
663 txid_auto = hisi_sas_phy_read32(hisi_hba, phy_no, TXID_AUTO);
664 hisi_sas_phy_write32(hisi_hba, phy_no, TXID_AUTO,
665 txid_auto | TX_HARDRST_MSK);
666 }
667 msleep(100);
668 start_phy_v3_hw(hisi_hba, phy_no);
669 }
670
671 enum sas_linkrate phy_get_max_linkrate_v3_hw(void)
672 {
673 return SAS_LINK_RATE_12_0_GBPS;
674 }
675
676 static void phys_init_v3_hw(struct hisi_hba *hisi_hba)
677 {
678 start_phys_v3_hw(hisi_hba);
679 }
680
681 static void sl_notify_v3_hw(struct hisi_hba *hisi_hba, int phy_no)
682 {
683 u32 sl_control;
684
685 sl_control = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL);
686 sl_control |= SL_CONTROL_NOTIFY_EN_MSK;
687 hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL, sl_control);
688 msleep(1);
689 sl_control = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL);
690 sl_control &= ~SL_CONTROL_NOTIFY_EN_MSK;
691 hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL, sl_control);
692 }
693
694 static int get_wideport_bitmap_v3_hw(struct hisi_hba *hisi_hba, int port_id)
695 {
696 int i, bitmap = 0;
697 u32 phy_port_num_ma = hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA);
698
699 for (i = 0; i < hisi_hba->n_phy; i++)
700 if (((phy_port_num_ma >> (i * 4)) & 0xf) == port_id)
701 bitmap |= 1 << i;
702
703 return bitmap;
704 }
705
706 /**
707 * The callpath to this function and upto writing the write
708 * queue pointer should be safe from interruption.
709 */
710 static int
711 get_free_slot_v3_hw(struct hisi_hba *hisi_hba, struct hisi_sas_dq *dq)
712 {
713 struct device *dev = hisi_hba->dev;
714 int queue = dq->id;
715 u32 r, w;
716
717 w = dq->wr_point;
718 r = hisi_sas_read32_relaxed(hisi_hba,
719 DLVRY_Q_0_RD_PTR + (queue * 0x14));
720 if (r == (w+1) % HISI_SAS_QUEUE_SLOTS) {
721 dev_warn(dev, "full queue=%d r=%d w=%d\n\n",
722 queue, r, w);
723 return -EAGAIN;
724 }
725
726 return 0;
727 }
728
729 static void start_delivery_v3_hw(struct hisi_sas_dq *dq)
730 {
731 struct hisi_hba *hisi_hba = dq->hisi_hba;
732 int dlvry_queue = dq->slot_prep->dlvry_queue;
733 int dlvry_queue_slot = dq->slot_prep->dlvry_queue_slot;
734
735 dq->wr_point = ++dlvry_queue_slot % HISI_SAS_QUEUE_SLOTS;
736 hisi_sas_write32(hisi_hba, DLVRY_Q_0_WR_PTR + (dlvry_queue * 0x14),
737 dq->wr_point);
738 }
739
740 static int prep_prd_sge_v3_hw(struct hisi_hba *hisi_hba,
741 struct hisi_sas_slot *slot,
742 struct hisi_sas_cmd_hdr *hdr,
743 struct scatterlist *scatter,
744 int n_elem)
745 {
746 struct hisi_sas_sge_page *sge_page = hisi_sas_sge_addr_mem(slot);
747 struct device *dev = hisi_hba->dev;
748 struct scatterlist *sg;
749 int i;
750
751 if (n_elem > HISI_SAS_SGE_PAGE_CNT) {
752 dev_err(dev, "prd err: n_elem(%d) > HISI_SAS_SGE_PAGE_CNT",
753 n_elem);
754 return -EINVAL;
755 }
756
757 for_each_sg(scatter, sg, n_elem, i) {
758 struct hisi_sas_sge *entry = &sge_page->sge[i];
759
760 entry->addr = cpu_to_le64(sg_dma_address(sg));
761 entry->page_ctrl_0 = entry->page_ctrl_1 = 0;
762 entry->data_len = cpu_to_le32(sg_dma_len(sg));
763 entry->data_off = 0;
764 }
765
766 hdr->prd_table_addr = cpu_to_le64(hisi_sas_sge_addr_dma(slot));
767
768 hdr->sg_len = cpu_to_le32(n_elem << CMD_HDR_DATA_SGL_LEN_OFF);
769
770 return 0;
771 }
772
773 static int prep_ssp_v3_hw(struct hisi_hba *hisi_hba,
774 struct hisi_sas_slot *slot, int is_tmf,
775 struct hisi_sas_tmf_task *tmf)
776 {
777 struct sas_task *task = slot->task;
778 struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
779 struct domain_device *device = task->dev;
780 struct hisi_sas_device *sas_dev = device->lldd_dev;
781 struct hisi_sas_port *port = slot->port;
782 struct sas_ssp_task *ssp_task = &task->ssp_task;
783 struct scsi_cmnd *scsi_cmnd = ssp_task->cmd;
784 int has_data = 0, rc, priority = is_tmf;
785 u8 *buf_cmd;
786 u32 dw1 = 0, dw2 = 0;
787
788 hdr->dw0 = cpu_to_le32((1 << CMD_HDR_RESP_REPORT_OFF) |
789 (2 << CMD_HDR_TLR_CTRL_OFF) |
790 (port->id << CMD_HDR_PORT_OFF) |
791 (priority << CMD_HDR_PRIORITY_OFF) |
792 (1 << CMD_HDR_CMD_OFF)); /* ssp */
793
794 dw1 = 1 << CMD_HDR_VDTL_OFF;
795 if (is_tmf) {
796 dw1 |= 2 << CMD_HDR_FRAME_TYPE_OFF;
797 dw1 |= DIR_NO_DATA << CMD_HDR_DIR_OFF;
798 } else {
799 dw1 |= 1 << CMD_HDR_FRAME_TYPE_OFF;
800 switch (scsi_cmnd->sc_data_direction) {
801 case DMA_TO_DEVICE:
802 has_data = 1;
803 dw1 |= DIR_TO_DEVICE << CMD_HDR_DIR_OFF;
804 break;
805 case DMA_FROM_DEVICE:
806 has_data = 1;
807 dw1 |= DIR_TO_INI << CMD_HDR_DIR_OFF;
808 break;
809 default:
810 dw1 &= ~CMD_HDR_DIR_MSK;
811 }
812 }
813
814 /* map itct entry */
815 dw1 |= sas_dev->device_id << CMD_HDR_DEV_ID_OFF;
816 hdr->dw1 = cpu_to_le32(dw1);
817
818 dw2 = (((sizeof(struct ssp_command_iu) + sizeof(struct ssp_frame_hdr)
819 + 3) / 4) << CMD_HDR_CFL_OFF) |
820 ((HISI_SAS_MAX_SSP_RESP_SZ / 4) << CMD_HDR_MRFL_OFF) |
821 (2 << CMD_HDR_SG_MOD_OFF);
822 hdr->dw2 = cpu_to_le32(dw2);
823 hdr->transfer_tags = cpu_to_le32(slot->idx);
824
825 if (has_data) {
826 rc = prep_prd_sge_v3_hw(hisi_hba, slot, hdr, task->scatter,
827 slot->n_elem);
828 if (rc)
829 return rc;
830 }
831
832 hdr->data_transfer_len = cpu_to_le32(task->total_xfer_len);
833 hdr->cmd_table_addr = cpu_to_le64(hisi_sas_cmd_hdr_addr_dma(slot));
834 hdr->sts_buffer_addr = cpu_to_le64(hisi_sas_status_buf_addr_dma(slot));
835
836 buf_cmd = hisi_sas_cmd_hdr_addr_mem(slot) +
837 sizeof(struct ssp_frame_hdr);
838
839 memcpy(buf_cmd, &task->ssp_task.LUN, 8);
840 if (!is_tmf) {
841 buf_cmd[9] = ssp_task->task_attr | (ssp_task->task_prio << 3);
842 memcpy(buf_cmd + 12, scsi_cmnd->cmnd, scsi_cmnd->cmd_len);
843 } else {
844 buf_cmd[10] = tmf->tmf;
845 switch (tmf->tmf) {
846 case TMF_ABORT_TASK:
847 case TMF_QUERY_TASK:
848 buf_cmd[12] =
849 (tmf->tag_of_task_to_be_managed >> 8) & 0xff;
850 buf_cmd[13] =
851 tmf->tag_of_task_to_be_managed & 0xff;
852 break;
853 default:
854 break;
855 }
856 }
857
858 return 0;
859 }
860
861 static int prep_smp_v3_hw(struct hisi_hba *hisi_hba,
862 struct hisi_sas_slot *slot)
863 {
864 struct sas_task *task = slot->task;
865 struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
866 struct domain_device *device = task->dev;
867 struct device *dev = hisi_hba->dev;
868 struct hisi_sas_port *port = slot->port;
869 struct scatterlist *sg_req, *sg_resp;
870 struct hisi_sas_device *sas_dev = device->lldd_dev;
871 dma_addr_t req_dma_addr;
872 unsigned int req_len, resp_len;
873 int elem, rc;
874
875 /*
876 * DMA-map SMP request, response buffers
877 */
878 /* req */
879 sg_req = &task->smp_task.smp_req;
880 elem = dma_map_sg(dev, sg_req, 1, DMA_TO_DEVICE);
881 if (!elem)
882 return -ENOMEM;
883 req_len = sg_dma_len(sg_req);
884 req_dma_addr = sg_dma_address(sg_req);
885
886 /* resp */
887 sg_resp = &task->smp_task.smp_resp;
888 elem = dma_map_sg(dev, sg_resp, 1, DMA_FROM_DEVICE);
889 if (!elem) {
890 rc = -ENOMEM;
891 goto err_out_req;
892 }
893 resp_len = sg_dma_len(sg_resp);
894 if ((req_len & 0x3) || (resp_len & 0x3)) {
895 rc = -EINVAL;
896 goto err_out_resp;
897 }
898
899 /* create header */
900 /* dw0 */
901 hdr->dw0 = cpu_to_le32((port->id << CMD_HDR_PORT_OFF) |
902 (1 << CMD_HDR_PRIORITY_OFF) | /* high pri */
903 (2 << CMD_HDR_CMD_OFF)); /* smp */
904
905 /* map itct entry */
906 hdr->dw1 = cpu_to_le32((sas_dev->device_id << CMD_HDR_DEV_ID_OFF) |
907 (1 << CMD_HDR_FRAME_TYPE_OFF) |
908 (DIR_NO_DATA << CMD_HDR_DIR_OFF));
909
910 /* dw2 */
911 hdr->dw2 = cpu_to_le32((((req_len - 4) / 4) << CMD_HDR_CFL_OFF) |
912 (HISI_SAS_MAX_SMP_RESP_SZ / 4 <<
913 CMD_HDR_MRFL_OFF));
914
915 hdr->transfer_tags = cpu_to_le32(slot->idx << CMD_HDR_IPTT_OFF);
916
917 hdr->cmd_table_addr = cpu_to_le64(req_dma_addr);
918 hdr->sts_buffer_addr = cpu_to_le64(hisi_sas_status_buf_addr_dma(slot));
919
920 return 0;
921
922 err_out_resp:
923 dma_unmap_sg(dev, &slot->task->smp_task.smp_resp, 1,
924 DMA_FROM_DEVICE);
925 err_out_req:
926 dma_unmap_sg(dev, &slot->task->smp_task.smp_req, 1,
927 DMA_TO_DEVICE);
928 return rc;
929 }
930
931 static int get_ncq_tag_v3_hw(struct sas_task *task, u32 *tag)
932 {
933 struct ata_queued_cmd *qc = task->uldd_task;
934
935 if (qc) {
936 if (qc->tf.command == ATA_CMD_FPDMA_WRITE ||
937 qc->tf.command == ATA_CMD_FPDMA_READ) {
938 *tag = qc->tag;
939 return 1;
940 }
941 }
942 return 0;
943 }
944
945 static int prep_ata_v3_hw(struct hisi_hba *hisi_hba,
946 struct hisi_sas_slot *slot)
947 {
948 struct sas_task *task = slot->task;
949 struct domain_device *device = task->dev;
950 struct domain_device *parent_dev = device->parent;
951 struct hisi_sas_device *sas_dev = device->lldd_dev;
952 struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
953 struct asd_sas_port *sas_port = device->port;
954 struct hisi_sas_port *port = to_hisi_sas_port(sas_port);
955 u8 *buf_cmd;
956 int has_data = 0, rc = 0, hdr_tag = 0;
957 u32 dw1 = 0, dw2 = 0;
958
959 hdr->dw0 = cpu_to_le32(port->id << CMD_HDR_PORT_OFF);
960 if (parent_dev && DEV_IS_EXPANDER(parent_dev->dev_type))
961 hdr->dw0 |= cpu_to_le32(3 << CMD_HDR_CMD_OFF);
962 else
963 hdr->dw0 |= cpu_to_le32(4 << CMD_HDR_CMD_OFF);
964
965 switch (task->data_dir) {
966 case DMA_TO_DEVICE:
967 has_data = 1;
968 dw1 |= DIR_TO_DEVICE << CMD_HDR_DIR_OFF;
969 break;
970 case DMA_FROM_DEVICE:
971 has_data = 1;
972 dw1 |= DIR_TO_INI << CMD_HDR_DIR_OFF;
973 break;
974 default:
975 dw1 &= ~CMD_HDR_DIR_MSK;
976 }
977
978 if ((task->ata_task.fis.command == ATA_CMD_DEV_RESET) &&
979 (task->ata_task.fis.control & ATA_SRST))
980 dw1 |= 1 << CMD_HDR_RESET_OFF;
981
982 dw1 |= (hisi_sas_get_ata_protocol(
983 task->ata_task.fis.command, task->data_dir))
984 << CMD_HDR_FRAME_TYPE_OFF;
985 dw1 |= sas_dev->device_id << CMD_HDR_DEV_ID_OFF;
986
987 if (CMD_IS_UNCONSTRAINT(task->ata_task.fis.command))
988 dw1 |= 1 << CMD_HDR_UNCON_CMD_OFF;
989
990 hdr->dw1 = cpu_to_le32(dw1);
991
992 /* dw2 */
993 if (task->ata_task.use_ncq && get_ncq_tag_v3_hw(task, &hdr_tag)) {
994 task->ata_task.fis.sector_count |= (u8) (hdr_tag << 3);
995 dw2 |= hdr_tag << CMD_HDR_NCQ_TAG_OFF;
996 }
997
998 dw2 |= (HISI_SAS_MAX_STP_RESP_SZ / 4) << CMD_HDR_CFL_OFF |
999 2 << CMD_HDR_SG_MOD_OFF;
1000 hdr->dw2 = cpu_to_le32(dw2);
1001
1002 /* dw3 */
1003 hdr->transfer_tags = cpu_to_le32(slot->idx);
1004
1005 if (has_data) {
1006 rc = prep_prd_sge_v3_hw(hisi_hba, slot, hdr, task->scatter,
1007 slot->n_elem);
1008 if (rc)
1009 return rc;
1010 }
1011
1012 hdr->data_transfer_len = cpu_to_le32(task->total_xfer_len);
1013 hdr->cmd_table_addr = cpu_to_le64(hisi_sas_cmd_hdr_addr_dma(slot));
1014 hdr->sts_buffer_addr = cpu_to_le64(hisi_sas_status_buf_addr_dma(slot));
1015
1016 buf_cmd = hisi_sas_cmd_hdr_addr_mem(slot);
1017
1018 if (likely(!task->ata_task.device_control_reg_update))
1019 task->ata_task.fis.flags |= 0x80; /* C=1: update ATA cmd reg */
1020 /* fill in command FIS */
1021 memcpy(buf_cmd, &task->ata_task.fis, sizeof(struct host_to_dev_fis));
1022
1023 return 0;
1024 }
1025
1026 static int prep_abort_v3_hw(struct hisi_hba *hisi_hba,
1027 struct hisi_sas_slot *slot,
1028 int device_id, int abort_flag, int tag_to_abort)
1029 {
1030 struct sas_task *task = slot->task;
1031 struct domain_device *dev = task->dev;
1032 struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
1033 struct hisi_sas_port *port = slot->port;
1034
1035 /* dw0 */
1036 hdr->dw0 = cpu_to_le32((5 << CMD_HDR_CMD_OFF) | /*abort*/
1037 (port->id << CMD_HDR_PORT_OFF) |
1038 ((dev_is_sata(dev) ? 1:0)
1039 << CMD_HDR_ABORT_DEVICE_TYPE_OFF) |
1040 (abort_flag
1041 << CMD_HDR_ABORT_FLAG_OFF));
1042
1043 /* dw1 */
1044 hdr->dw1 = cpu_to_le32(device_id
1045 << CMD_HDR_DEV_ID_OFF);
1046
1047 /* dw7 */
1048 hdr->dw7 = cpu_to_le32(tag_to_abort << CMD_HDR_ABORT_IPTT_OFF);
1049 hdr->transfer_tags = cpu_to_le32(slot->idx);
1050
1051 return 0;
1052 }
1053
1054 static int phy_up_v3_hw(int phy_no, struct hisi_hba *hisi_hba)
1055 {
1056 int i, res = 0;
1057 u32 context, port_id, link_rate, hard_phy_linkrate;
1058 struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
1059 struct asd_sas_phy *sas_phy = &phy->sas_phy;
1060 struct device *dev = hisi_hba->dev;
1061
1062 hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_PHY_ENA_MSK, 1);
1063
1064 port_id = hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA);
1065 port_id = (port_id >> (4 * phy_no)) & 0xf;
1066 link_rate = hisi_sas_read32(hisi_hba, PHY_CONN_RATE);
1067 link_rate = (link_rate >> (phy_no * 4)) & 0xf;
1068
1069 if (port_id == 0xf) {
1070 dev_err(dev, "phyup: phy%d invalid portid\n", phy_no);
1071 res = IRQ_NONE;
1072 goto end;
1073 }
1074 sas_phy->linkrate = link_rate;
1075 hard_phy_linkrate = hisi_sas_phy_read32(hisi_hba, phy_no,
1076 HARD_PHY_LINKRATE);
1077 phy->maximum_linkrate = hard_phy_linkrate & 0xf;
1078 phy->minimum_linkrate = (hard_phy_linkrate >> 4) & 0xf;
1079 phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA);
1080
1081 /* Check for SATA dev */
1082 context = hisi_sas_read32(hisi_hba, PHY_CONTEXT);
1083 if (context & (1 << phy_no)) {
1084 struct hisi_sas_initial_fis *initial_fis;
1085 struct dev_to_host_fis *fis;
1086 u8 attached_sas_addr[SAS_ADDR_SIZE] = {0};
1087
1088 dev_info(dev, "phyup: phy%d link_rate=%d\n", phy_no, link_rate);
1089 initial_fis = &hisi_hba->initial_fis[phy_no];
1090 fis = &initial_fis->fis;
1091 sas_phy->oob_mode = SATA_OOB_MODE;
1092 attached_sas_addr[0] = 0x50;
1093 attached_sas_addr[7] = phy_no;
1094 memcpy(sas_phy->attached_sas_addr,
1095 attached_sas_addr,
1096 SAS_ADDR_SIZE);
1097 memcpy(sas_phy->frame_rcvd, fis,
1098 sizeof(struct dev_to_host_fis));
1099 phy->phy_type |= PORT_TYPE_SATA;
1100 phy->identify.device_type = SAS_SATA_DEV;
1101 phy->frame_rcvd_size = sizeof(struct dev_to_host_fis);
1102 phy->identify.target_port_protocols = SAS_PROTOCOL_SATA;
1103 } else {
1104 u32 *frame_rcvd = (u32 *)sas_phy->frame_rcvd;
1105 struct sas_identify_frame *id =
1106 (struct sas_identify_frame *)frame_rcvd;
1107
1108 dev_info(dev, "phyup: phy%d link_rate=%d\n", phy_no, link_rate);
1109 for (i = 0; i < 6; i++) {
1110 u32 idaf = hisi_sas_phy_read32(hisi_hba, phy_no,
1111 RX_IDAF_DWORD0 + (i * 4));
1112 frame_rcvd[i] = __swab32(idaf);
1113 }
1114 sas_phy->oob_mode = SAS_OOB_MODE;
1115 memcpy(sas_phy->attached_sas_addr,
1116 &id->sas_addr,
1117 SAS_ADDR_SIZE);
1118 phy->phy_type |= PORT_TYPE_SAS;
1119 phy->identify.device_type = id->dev_type;
1120 phy->frame_rcvd_size = sizeof(struct sas_identify_frame);
1121 if (phy->identify.device_type == SAS_END_DEVICE)
1122 phy->identify.target_port_protocols =
1123 SAS_PROTOCOL_SSP;
1124 else if (phy->identify.device_type != SAS_PHY_UNUSED)
1125 phy->identify.target_port_protocols =
1126 SAS_PROTOCOL_SMP;
1127 }
1128
1129 phy->port_id = port_id;
1130 phy->phy_attached = 1;
1131 queue_work(hisi_hba->wq, &phy->phyup_ws);
1132
1133 end:
1134 hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0,
1135 CHL_INT0_SL_PHY_ENABLE_MSK);
1136 hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_PHY_ENA_MSK, 0);
1137
1138 return res;
1139 }
1140
1141 static int phy_down_v3_hw(int phy_no, struct hisi_hba *hisi_hba)
1142 {
1143 int res = 0;
1144 u32 phy_state, sl_ctrl, txid_auto;
1145 struct device *dev = hisi_hba->dev;
1146
1147 hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_NOT_RDY_MSK, 1);
1148
1149 phy_state = hisi_sas_read32(hisi_hba, PHY_STATE);
1150 dev_info(dev, "phydown: phy%d phy_state=0x%x\n", phy_no, phy_state);
1151 hisi_sas_phy_down(hisi_hba, phy_no, (phy_state & 1 << phy_no) ? 1 : 0);
1152
1153 sl_ctrl = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL);
1154 hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL,
1155 sl_ctrl&(~SL_CTA_MSK));
1156
1157 txid_auto = hisi_sas_phy_read32(hisi_hba, phy_no, TXID_AUTO);
1158 hisi_sas_phy_write32(hisi_hba, phy_no, TXID_AUTO,
1159 txid_auto | CT3_MSK);
1160
1161 hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, CHL_INT0_NOT_RDY_MSK);
1162 hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_NOT_RDY_MSK, 0);
1163
1164 return res;
1165 }
1166
1167 static void phy_bcast_v3_hw(int phy_no, struct hisi_hba *hisi_hba)
1168 {
1169 struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
1170 struct asd_sas_phy *sas_phy = &phy->sas_phy;
1171 struct sas_ha_struct *sas_ha = &hisi_hba->sha;
1172
1173 hisi_sas_phy_write32(hisi_hba, phy_no, SL_RX_BCAST_CHK_MSK, 1);
1174 sas_ha->notify_port_event(sas_phy, PORTE_BROADCAST_RCVD);
1175 hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0,
1176 CHL_INT0_SL_RX_BCST_ACK_MSK);
1177 hisi_sas_phy_write32(hisi_hba, phy_no, SL_RX_BCAST_CHK_MSK, 0);
1178 }
1179
1180 static irqreturn_t int_phy_up_down_bcast_v3_hw(int irq_no, void *p)
1181 {
1182 struct hisi_hba *hisi_hba = p;
1183 u32 irq_msk;
1184 int phy_no = 0;
1185 irqreturn_t res = IRQ_NONE;
1186
1187 irq_msk = hisi_sas_read32(hisi_hba, CHNL_INT_STATUS)
1188 & 0x11111111;
1189 while (irq_msk) {
1190 if (irq_msk & 1) {
1191 u32 irq_value = hisi_sas_phy_read32(hisi_hba, phy_no,
1192 CHL_INT0);
1193 u32 phy_state = hisi_sas_read32(hisi_hba, PHY_STATE);
1194 int rdy = phy_state & (1 << phy_no);
1195
1196 if (rdy) {
1197 if (irq_value & CHL_INT0_SL_PHY_ENABLE_MSK)
1198 /* phy up */
1199 if (phy_up_v3_hw(phy_no, hisi_hba)
1200 == IRQ_HANDLED)
1201 res = IRQ_HANDLED;
1202 if (irq_value & CHL_INT0_SL_RX_BCST_ACK_MSK)
1203 /* phy bcast */
1204 phy_bcast_v3_hw(phy_no, hisi_hba);
1205 } else {
1206 if (irq_value & CHL_INT0_NOT_RDY_MSK)
1207 /* phy down */
1208 if (phy_down_v3_hw(phy_no, hisi_hba)
1209 == IRQ_HANDLED)
1210 res = IRQ_HANDLED;
1211 }
1212 }
1213 irq_msk >>= 4;
1214 phy_no++;
1215 }
1216
1217 return res;
1218 }
1219
1220 static irqreturn_t int_chnl_int_v3_hw(int irq_no, void *p)
1221 {
1222 struct hisi_hba *hisi_hba = p;
1223 struct device *dev = hisi_hba->dev;
1224 u32 ent_msk, ent_tmp, irq_msk;
1225 int phy_no = 0;
1226
1227 ent_msk = hisi_sas_read32(hisi_hba, ENT_INT_SRC_MSK3);
1228 ent_tmp = ent_msk;
1229 ent_msk |= ENT_INT_SRC_MSK3_ENT95_MSK_MSK;
1230 hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, ent_msk);
1231
1232 irq_msk = hisi_sas_read32(hisi_hba, CHNL_INT_STATUS)
1233 & 0xeeeeeeee;
1234
1235 while (irq_msk) {
1236 u32 irq_value0 = hisi_sas_phy_read32(hisi_hba, phy_no,
1237 CHL_INT0);
1238 u32 irq_value1 = hisi_sas_phy_read32(hisi_hba, phy_no,
1239 CHL_INT1);
1240 u32 irq_value2 = hisi_sas_phy_read32(hisi_hba, phy_no,
1241 CHL_INT2);
1242
1243 if ((irq_msk & (4 << (phy_no * 4))) &&
1244 irq_value1) {
1245 if (irq_value1 & (CHL_INT1_DMAC_RX_ECC_ERR_MSK |
1246 CHL_INT1_DMAC_TX_ECC_ERR_MSK))
1247 panic("%s: DMAC RX/TX ecc bad error! (0x%x)",
1248 dev_name(dev), irq_value1);
1249
1250 hisi_sas_phy_write32(hisi_hba, phy_no,
1251 CHL_INT1, irq_value1);
1252 }
1253
1254 if (irq_msk & (8 << (phy_no * 4)) && irq_value2)
1255 hisi_sas_phy_write32(hisi_hba, phy_no,
1256 CHL_INT2, irq_value2);
1257
1258
1259 if (irq_msk & (2 << (phy_no * 4)) && irq_value0) {
1260 hisi_sas_phy_write32(hisi_hba, phy_no,
1261 CHL_INT0, irq_value0
1262 & (~CHL_INT0_HOTPLUG_TOUT_MSK)
1263 & (~CHL_INT0_SL_PHY_ENABLE_MSK)
1264 & (~CHL_INT0_NOT_RDY_MSK));
1265 }
1266 irq_msk &= ~(0xe << (phy_no * 4));
1267 phy_no++;
1268 }
1269
1270 hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, ent_tmp);
1271
1272 return IRQ_HANDLED;
1273 }
1274
1275 static void
1276 slot_err_v3_hw(struct hisi_hba *hisi_hba, struct sas_task *task,
1277 struct hisi_sas_slot *slot)
1278 {
1279 struct task_status_struct *ts = &task->task_status;
1280 struct hisi_sas_complete_v3_hdr *complete_queue =
1281 hisi_hba->complete_hdr[slot->cmplt_queue];
1282 struct hisi_sas_complete_v3_hdr *complete_hdr =
1283 &complete_queue[slot->cmplt_queue_slot];
1284 struct hisi_sas_err_record_v3 *record =
1285 hisi_sas_status_buf_addr_mem(slot);
1286 u32 dma_rx_err_type = record->dma_rx_err_type;
1287 u32 trans_tx_fail_type = record->trans_tx_fail_type;
1288
1289 switch (task->task_proto) {
1290 case SAS_PROTOCOL_SSP:
1291 if (dma_rx_err_type & RX_DATA_LEN_UNDERFLOW_MSK) {
1292 ts->residual = trans_tx_fail_type;
1293 ts->stat = SAS_DATA_UNDERRUN;
1294 } else if (complete_hdr->dw3 & CMPLT_HDR_IO_IN_TARGET_MSK) {
1295 ts->stat = SAS_QUEUE_FULL;
1296 slot->abort = 1;
1297 } else {
1298 ts->stat = SAS_OPEN_REJECT;
1299 ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
1300 }
1301 break;
1302 case SAS_PROTOCOL_SATA:
1303 case SAS_PROTOCOL_STP:
1304 case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
1305 if (dma_rx_err_type & RX_DATA_LEN_UNDERFLOW_MSK) {
1306 ts->residual = trans_tx_fail_type;
1307 ts->stat = SAS_DATA_UNDERRUN;
1308 } else if (complete_hdr->dw3 & CMPLT_HDR_IO_IN_TARGET_MSK) {
1309 ts->stat = SAS_PHY_DOWN;
1310 slot->abort = 1;
1311 } else {
1312 ts->stat = SAS_OPEN_REJECT;
1313 ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
1314 }
1315 hisi_sas_sata_done(task, slot);
1316 break;
1317 case SAS_PROTOCOL_SMP:
1318 ts->stat = SAM_STAT_CHECK_CONDITION;
1319 break;
1320 default:
1321 break;
1322 }
1323 }
1324
1325 static int
1326 slot_complete_v3_hw(struct hisi_hba *hisi_hba, struct hisi_sas_slot *slot)
1327 {
1328 struct sas_task *task = slot->task;
1329 struct hisi_sas_device *sas_dev;
1330 struct device *dev = hisi_hba->dev;
1331 struct task_status_struct *ts;
1332 struct domain_device *device;
1333 enum exec_status sts;
1334 struct hisi_sas_complete_v3_hdr *complete_queue =
1335 hisi_hba->complete_hdr[slot->cmplt_queue];
1336 struct hisi_sas_complete_v3_hdr *complete_hdr =
1337 &complete_queue[slot->cmplt_queue_slot];
1338 int aborted;
1339 unsigned long flags;
1340
1341 if (unlikely(!task || !task->lldd_task || !task->dev))
1342 return -EINVAL;
1343
1344 ts = &task->task_status;
1345 device = task->dev;
1346 sas_dev = device->lldd_dev;
1347
1348 spin_lock_irqsave(&task->task_state_lock, flags);
1349 aborted = task->task_state_flags & SAS_TASK_STATE_ABORTED;
1350 task->task_state_flags &=
1351 ~(SAS_TASK_STATE_PENDING | SAS_TASK_AT_INITIATOR);
1352 spin_unlock_irqrestore(&task->task_state_lock, flags);
1353
1354 memset(ts, 0, sizeof(*ts));
1355 ts->resp = SAS_TASK_COMPLETE;
1356 if (unlikely(aborted)) {
1357 ts->stat = SAS_ABORTED_TASK;
1358 hisi_sas_slot_task_free(hisi_hba, task, slot);
1359 return -1;
1360 }
1361
1362 if (unlikely(!sas_dev)) {
1363 dev_dbg(dev, "slot complete: port has not device\n");
1364 ts->stat = SAS_PHY_DOWN;
1365 goto out;
1366 }
1367
1368 /*
1369 * Use SAS+TMF status codes
1370 */
1371 switch ((complete_hdr->dw0 & CMPLT_HDR_ABORT_STAT_MSK)
1372 >> CMPLT_HDR_ABORT_STAT_OFF) {
1373 case STAT_IO_ABORTED:
1374 /* this IO has been aborted by abort command */
1375 ts->stat = SAS_ABORTED_TASK;
1376 goto out;
1377 case STAT_IO_COMPLETE:
1378 /* internal abort command complete */
1379 ts->stat = TMF_RESP_FUNC_SUCC;
1380 goto out;
1381 case STAT_IO_NO_DEVICE:
1382 ts->stat = TMF_RESP_FUNC_COMPLETE;
1383 goto out;
1384 case STAT_IO_NOT_VALID:
1385 /*
1386 * abort single IO, the controller can't find the IO
1387 */
1388 ts->stat = TMF_RESP_FUNC_FAILED;
1389 goto out;
1390 default:
1391 break;
1392 }
1393
1394 /* check for erroneous completion */
1395 if ((complete_hdr->dw0 & CMPLT_HDR_CMPLT_MSK) == 0x3) {
1396 slot_err_v3_hw(hisi_hba, task, slot);
1397 if (unlikely(slot->abort))
1398 return ts->stat;
1399 goto out;
1400 }
1401
1402 switch (task->task_proto) {
1403 case SAS_PROTOCOL_SSP: {
1404 struct ssp_response_iu *iu =
1405 hisi_sas_status_buf_addr_mem(slot) +
1406 sizeof(struct hisi_sas_err_record);
1407
1408 sas_ssp_task_response(dev, task, iu);
1409 break;
1410 }
1411 case SAS_PROTOCOL_SMP: {
1412 struct scatterlist *sg_resp = &task->smp_task.smp_resp;
1413 void *to;
1414
1415 ts->stat = SAM_STAT_GOOD;
1416 to = kmap_atomic(sg_page(sg_resp));
1417
1418 dma_unmap_sg(dev, &task->smp_task.smp_resp, 1,
1419 DMA_FROM_DEVICE);
1420 dma_unmap_sg(dev, &task->smp_task.smp_req, 1,
1421 DMA_TO_DEVICE);
1422 memcpy(to + sg_resp->offset,
1423 hisi_sas_status_buf_addr_mem(slot) +
1424 sizeof(struct hisi_sas_err_record),
1425 sg_dma_len(sg_resp));
1426 kunmap_atomic(to);
1427 break;
1428 }
1429 case SAS_PROTOCOL_SATA:
1430 case SAS_PROTOCOL_STP:
1431 case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
1432 ts->stat = SAM_STAT_GOOD;
1433 hisi_sas_sata_done(task, slot);
1434 break;
1435 default:
1436 ts->stat = SAM_STAT_CHECK_CONDITION;
1437 break;
1438 }
1439
1440 if (!slot->port->port_attached) {
1441 dev_err(dev, "slot complete: port %d has removed\n",
1442 slot->port->sas_port.id);
1443 ts->stat = SAS_PHY_DOWN;
1444 }
1445
1446 out:
1447 spin_lock_irqsave(&task->task_state_lock, flags);
1448 task->task_state_flags |= SAS_TASK_STATE_DONE;
1449 spin_unlock_irqrestore(&task->task_state_lock, flags);
1450 spin_lock_irqsave(&hisi_hba->lock, flags);
1451 hisi_sas_slot_task_free(hisi_hba, task, slot);
1452 spin_unlock_irqrestore(&hisi_hba->lock, flags);
1453 sts = ts->stat;
1454
1455 if (task->task_done)
1456 task->task_done(task);
1457
1458 return sts;
1459 }
1460
1461 static void cq_tasklet_v3_hw(unsigned long val)
1462 {
1463 struct hisi_sas_cq *cq = (struct hisi_sas_cq *)val;
1464 struct hisi_hba *hisi_hba = cq->hisi_hba;
1465 struct hisi_sas_slot *slot;
1466 struct hisi_sas_itct *itct;
1467 struct hisi_sas_complete_v3_hdr *complete_queue;
1468 u32 rd_point = cq->rd_point, wr_point, dev_id;
1469 int queue = cq->id;
1470 struct hisi_sas_dq *dq = &hisi_hba->dq[queue];
1471
1472 complete_queue = hisi_hba->complete_hdr[queue];
1473
1474 spin_lock(&dq->lock);
1475 wr_point = hisi_sas_read32(hisi_hba, COMPL_Q_0_WR_PTR +
1476 (0x14 * queue));
1477
1478 while (rd_point != wr_point) {
1479 struct hisi_sas_complete_v3_hdr *complete_hdr;
1480 int iptt;
1481
1482 complete_hdr = &complete_queue[rd_point];
1483
1484 /* Check for NCQ completion */
1485 if (complete_hdr->act) {
1486 u32 act_tmp = complete_hdr->act;
1487 int ncq_tag_count = ffs(act_tmp);
1488
1489 dev_id = (complete_hdr->dw1 & CMPLT_HDR_DEV_ID_MSK) >>
1490 CMPLT_HDR_DEV_ID_OFF;
1491 itct = &hisi_hba->itct[dev_id];
1492
1493 /* The NCQ tags are held in the itct header */
1494 while (ncq_tag_count) {
1495 __le64 *ncq_tag = &itct->qw4_15[0];
1496
1497 ncq_tag_count -= 1;
1498 iptt = (ncq_tag[ncq_tag_count / 5]
1499 >> (ncq_tag_count % 5) * 12) & 0xfff;
1500
1501 slot = &hisi_hba->slot_info[iptt];
1502 slot->cmplt_queue_slot = rd_point;
1503 slot->cmplt_queue = queue;
1504 slot_complete_v3_hw(hisi_hba, slot);
1505
1506 act_tmp &= ~(1 << ncq_tag_count);
1507 ncq_tag_count = ffs(act_tmp);
1508 }
1509 } else {
1510 iptt = (complete_hdr->dw1) & CMPLT_HDR_IPTT_MSK;
1511 slot = &hisi_hba->slot_info[iptt];
1512 slot->cmplt_queue_slot = rd_point;
1513 slot->cmplt_queue = queue;
1514 slot_complete_v3_hw(hisi_hba, slot);
1515 }
1516
1517 if (++rd_point >= HISI_SAS_QUEUE_SLOTS)
1518 rd_point = 0;
1519 }
1520
1521 /* update rd_point */
1522 cq->rd_point = rd_point;
1523 hisi_sas_write32(hisi_hba, COMPL_Q_0_RD_PTR + (0x14 * queue), rd_point);
1524 spin_unlock(&dq->lock);
1525 }
1526
1527 static irqreturn_t cq_interrupt_v3_hw(int irq_no, void *p)
1528 {
1529 struct hisi_sas_cq *cq = p;
1530 struct hisi_hba *hisi_hba = cq->hisi_hba;
1531 int queue = cq->id;
1532
1533 hisi_sas_write32(hisi_hba, OQ_INT_SRC, 1 << queue);
1534
1535 tasklet_schedule(&cq->tasklet);
1536
1537 return IRQ_HANDLED;
1538 }
1539
1540 static int interrupt_init_v3_hw(struct hisi_hba *hisi_hba)
1541 {
1542 struct device *dev = hisi_hba->dev;
1543 struct pci_dev *pdev = hisi_hba->pci_dev;
1544 int vectors, rc;
1545 int i, k;
1546 int max_msi = HISI_SAS_MSI_COUNT_V3_HW;
1547
1548 vectors = pci_alloc_irq_vectors(hisi_hba->pci_dev, 1,
1549 max_msi, PCI_IRQ_MSI);
1550 if (vectors < max_msi) {
1551 dev_err(dev, "could not allocate all msi (%d)\n", vectors);
1552 return -ENOENT;
1553 }
1554
1555 rc = devm_request_irq(dev, pci_irq_vector(pdev, 1),
1556 int_phy_up_down_bcast_v3_hw, 0,
1557 DRV_NAME " phy", hisi_hba);
1558 if (rc) {
1559 dev_err(dev, "could not request phy interrupt, rc=%d\n", rc);
1560 rc = -ENOENT;
1561 goto free_irq_vectors;
1562 }
1563
1564 rc = devm_request_irq(dev, pci_irq_vector(pdev, 2),
1565 int_chnl_int_v3_hw, 0,
1566 DRV_NAME " channel", hisi_hba);
1567 if (rc) {
1568 dev_err(dev, "could not request chnl interrupt, rc=%d\n", rc);
1569 rc = -ENOENT;
1570 goto free_phy_irq;
1571 }
1572
1573 /* Init tasklets for cq only */
1574 for (i = 0; i < hisi_hba->queue_count; i++) {
1575 struct hisi_sas_cq *cq = &hisi_hba->cq[i];
1576 struct tasklet_struct *t = &cq->tasklet;
1577
1578 rc = devm_request_irq(dev, pci_irq_vector(pdev, i+16),
1579 cq_interrupt_v3_hw, 0,
1580 DRV_NAME " cq", cq);
1581 if (rc) {
1582 dev_err(dev,
1583 "could not request cq%d interrupt, rc=%d\n",
1584 i, rc);
1585 rc = -ENOENT;
1586 goto free_cq_irqs;
1587 }
1588
1589 tasklet_init(t, cq_tasklet_v3_hw, (unsigned long)cq);
1590 }
1591
1592 return 0;
1593
1594 free_cq_irqs:
1595 for (k = 0; k < i; k++) {
1596 struct hisi_sas_cq *cq = &hisi_hba->cq[k];
1597
1598 free_irq(pci_irq_vector(pdev, k+16), cq);
1599 }
1600 free_irq(pci_irq_vector(pdev, 2), hisi_hba);
1601 free_phy_irq:
1602 free_irq(pci_irq_vector(pdev, 1), hisi_hba);
1603 free_irq_vectors:
1604 pci_free_irq_vectors(pdev);
1605 return rc;
1606 }
1607
1608 static int hisi_sas_v3_init(struct hisi_hba *hisi_hba)
1609 {
1610 int rc;
1611
1612 rc = hw_init_v3_hw(hisi_hba);
1613 if (rc)
1614 return rc;
1615
1616 rc = interrupt_init_v3_hw(hisi_hba);
1617 if (rc)
1618 return rc;
1619
1620 return 0;
1621 }
1622
1623 static const struct hisi_sas_hw hisi_sas_v3_hw = {
1624 .hw_init = hisi_sas_v3_init,
1625 .setup_itct = setup_itct_v3_hw,
1626 .max_command_entries = HISI_SAS_COMMAND_ENTRIES_V3_HW,
1627 .get_wideport_bitmap = get_wideport_bitmap_v3_hw,
1628 .complete_hdr_size = sizeof(struct hisi_sas_complete_v3_hdr),
1629 .free_device = free_device_v3_hw,
1630 .sl_notify = sl_notify_v3_hw,
1631 .prep_ssp = prep_ssp_v3_hw,
1632 .prep_smp = prep_smp_v3_hw,
1633 .prep_stp = prep_ata_v3_hw,
1634 .prep_abort = prep_abort_v3_hw,
1635 .get_free_slot = get_free_slot_v3_hw,
1636 .start_delivery = start_delivery_v3_hw,
1637 .slot_complete = slot_complete_v3_hw,
1638 .phys_init = phys_init_v3_hw,
1639 .phy_enable = enable_phy_v3_hw,
1640 .phy_disable = disable_phy_v3_hw,
1641 .phy_hard_reset = phy_hard_reset_v3_hw,
1642 .phy_get_max_linkrate = phy_get_max_linkrate_v3_hw,
1643 .dereg_device = dereg_device_v3_hw,
1644 };
1645
1646 static struct Scsi_Host *
1647 hisi_sas_shost_alloc_pci(struct pci_dev *pdev)
1648 {
1649 struct Scsi_Host *shost;
1650 struct hisi_hba *hisi_hba;
1651 struct device *dev = &pdev->dev;
1652
1653 shost = scsi_host_alloc(hisi_sas_sht, sizeof(*hisi_hba));
1654 if (!shost)
1655 goto err_out;
1656 hisi_hba = shost_priv(shost);
1657
1658 hisi_hba->hw = &hisi_sas_v3_hw;
1659 hisi_hba->pci_dev = pdev;
1660 hisi_hba->dev = dev;
1661 hisi_hba->shost = shost;
1662 SHOST_TO_SAS_HA(shost) = &hisi_hba->sha;
1663
1664 init_timer(&hisi_hba->timer);
1665
1666 if (hisi_sas_get_fw_info(hisi_hba) < 0)
1667 goto err_out;
1668
1669 if (hisi_sas_alloc(hisi_hba, shost)) {
1670 hisi_sas_free(hisi_hba);
1671 goto err_out;
1672 }
1673
1674 return shost;
1675 err_out:
1676 dev_err(dev, "shost alloc failed\n");
1677 return NULL;
1678 }
1679
1680 static int
1681 hisi_sas_v3_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1682 {
1683 struct Scsi_Host *shost;
1684 struct hisi_hba *hisi_hba;
1685 struct device *dev = &pdev->dev;
1686 struct asd_sas_phy **arr_phy;
1687 struct asd_sas_port **arr_port;
1688 struct sas_ha_struct *sha;
1689 int rc, phy_nr, port_nr, i;
1690
1691 rc = pci_enable_device(pdev);
1692 if (rc)
1693 goto err_out;
1694
1695 pci_set_master(pdev);
1696
1697 rc = pci_request_regions(pdev, DRV_NAME);
1698 if (rc)
1699 goto err_out_disable_device;
1700
1701 if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) ||
1702 (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)) != 0)) {
1703 if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) ||
1704 (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)) {
1705 dev_err(dev, "No usable DMA addressing method\n");
1706 rc = -EIO;
1707 goto err_out_regions;
1708 }
1709 }
1710
1711 shost = hisi_sas_shost_alloc_pci(pdev);
1712 if (!shost) {
1713 rc = -ENOMEM;
1714 goto err_out_regions;
1715 }
1716
1717 sha = SHOST_TO_SAS_HA(shost);
1718 hisi_hba = shost_priv(shost);
1719 dev_set_drvdata(dev, sha);
1720
1721 hisi_hba->regs = pcim_iomap(pdev, 5, 0);
1722 if (!hisi_hba->regs) {
1723 dev_err(dev, "cannot map register.\n");
1724 rc = -ENOMEM;
1725 goto err_out_ha;
1726 }
1727
1728 phy_nr = port_nr = hisi_hba->n_phy;
1729
1730 arr_phy = devm_kcalloc(dev, phy_nr, sizeof(void *), GFP_KERNEL);
1731 arr_port = devm_kcalloc(dev, port_nr, sizeof(void *), GFP_KERNEL);
1732 if (!arr_phy || !arr_port) {
1733 rc = -ENOMEM;
1734 goto err_out_ha;
1735 }
1736
1737 sha->sas_phy = arr_phy;
1738 sha->sas_port = arr_port;
1739 sha->core.shost = shost;
1740 sha->lldd_ha = hisi_hba;
1741
1742 shost->transportt = hisi_sas_stt;
1743 shost->max_id = HISI_SAS_MAX_DEVICES;
1744 shost->max_lun = ~0;
1745 shost->max_channel = 1;
1746 shost->max_cmd_len = 16;
1747 shost->sg_tablesize = min_t(u16, SG_ALL, HISI_SAS_SGE_PAGE_CNT);
1748 shost->can_queue = hisi_hba->hw->max_command_entries;
1749 shost->cmd_per_lun = hisi_hba->hw->max_command_entries;
1750
1751 sha->sas_ha_name = DRV_NAME;
1752 sha->dev = dev;
1753 sha->lldd_module = THIS_MODULE;
1754 sha->sas_addr = &hisi_hba->sas_addr[0];
1755 sha->num_phys = hisi_hba->n_phy;
1756 sha->core.shost = hisi_hba->shost;
1757
1758 for (i = 0; i < hisi_hba->n_phy; i++) {
1759 sha->sas_phy[i] = &hisi_hba->phy[i].sas_phy;
1760 sha->sas_port[i] = &hisi_hba->port[i].sas_port;
1761 }
1762
1763 hisi_sas_init_add(hisi_hba);
1764
1765 rc = scsi_add_host(shost, dev);
1766 if (rc)
1767 goto err_out_ha;
1768
1769 rc = sas_register_ha(sha);
1770 if (rc)
1771 goto err_out_register_ha;
1772
1773 rc = hisi_hba->hw->hw_init(hisi_hba);
1774 if (rc)
1775 goto err_out_register_ha;
1776
1777 scsi_scan_host(shost);
1778
1779 return 0;
1780
1781 err_out_register_ha:
1782 scsi_remove_host(shost);
1783 err_out_ha:
1784 kfree(shost);
1785 err_out_regions:
1786 pci_release_regions(pdev);
1787 err_out_disable_device:
1788 pci_disable_device(pdev);
1789 err_out:
1790 return rc;
1791 }
1792
1793 static void
1794 hisi_sas_v3_destroy_irqs(struct pci_dev *pdev, struct hisi_hba *hisi_hba)
1795 {
1796 int i;
1797
1798 free_irq(pci_irq_vector(pdev, 1), hisi_hba);
1799 free_irq(pci_irq_vector(pdev, 2), hisi_hba);
1800 for (i = 0; i < hisi_hba->queue_count; i++) {
1801 struct hisi_sas_cq *cq = &hisi_hba->cq[i];
1802
1803 free_irq(pci_irq_vector(pdev, i+16), cq);
1804 }
1805 pci_free_irq_vectors(pdev);
1806 }
1807
1808 static void hisi_sas_v3_remove(struct pci_dev *pdev)
1809 {
1810 struct device *dev = &pdev->dev;
1811 struct sas_ha_struct *sha = dev_get_drvdata(dev);
1812 struct hisi_hba *hisi_hba = sha->lldd_ha;
1813
1814 sas_unregister_ha(sha);
1815 sas_remove_host(sha->core.shost);
1816
1817 hisi_sas_free(hisi_hba);
1818 hisi_sas_v3_destroy_irqs(pdev, hisi_hba);
1819 pci_release_regions(pdev);
1820 pci_disable_device(pdev);
1821 }
1822
1823 enum {
1824 /* instances of the controller */
1825 hip08,
1826 };
1827
1828 static const struct pci_device_id sas_v3_pci_table[] = {
1829 { PCI_VDEVICE(HUAWEI, 0xa230), hip08 },
1830 {}
1831 };
1832
1833 static struct pci_driver sas_v3_pci_driver = {
1834 .name = DRV_NAME,
1835 .id_table = sas_v3_pci_table,
1836 .probe = hisi_sas_v3_probe,
1837 .remove = hisi_sas_v3_remove,
1838 };
1839
1840 module_pci_driver(sas_v3_pci_driver);
1841
1842 MODULE_VERSION(DRV_VERSION);
1843 MODULE_LICENSE("GPL");
1844 MODULE_AUTHOR("John Garry <john.garry@huawei.com>");
1845 MODULE_DESCRIPTION("HISILICON SAS controller v3 hw driver based on pci device");
1846 MODULE_ALIAS("platform:" DRV_NAME);
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