Commit | Line | Data |
---|---|---|
b5762948 | 1 | /* |
20b09c29 AY |
2 | * Marvell 88SE64xx/88SE94xx main function |
3 | * | |
4 | * Copyright 2007 Red Hat, Inc. | |
5 | * Copyright 2008 Marvell. <kewei@marvell.com> | |
0b15fb1f | 6 | * Copyright 2009-2011 Marvell. <yuxiangl@marvell.com> |
20b09c29 AY |
7 | * |
8 | * This file is licensed under GPLv2. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or | |
11 | * modify it under the terms of the GNU General Public License as | |
12 | * published by the Free Software Foundation; version 2 of the | |
13 | * License. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 | * General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
23 | * USA | |
24 | */ | |
b5762948 | 25 | |
dd4969a8 | 26 | #include "mv_sas.h" |
b5762948 | 27 | |
dd4969a8 JG |
28 | static int mvs_find_tag(struct mvs_info *mvi, struct sas_task *task, u32 *tag) |
29 | { | |
30 | if (task->lldd_task) { | |
31 | struct mvs_slot_info *slot; | |
f9da3be5 | 32 | slot = task->lldd_task; |
20b09c29 | 33 | *tag = slot->slot_tag; |
dd4969a8 JG |
34 | return 1; |
35 | } | |
36 | return 0; | |
37 | } | |
8f261aaf | 38 | |
20b09c29 | 39 | void mvs_tag_clear(struct mvs_info *mvi, u32 tag) |
dd4969a8 | 40 | { |
b89e8f53 | 41 | void *bitmap = mvi->tags; |
dd4969a8 JG |
42 | clear_bit(tag, bitmap); |
43 | } | |
8f261aaf | 44 | |
20b09c29 | 45 | void mvs_tag_free(struct mvs_info *mvi, u32 tag) |
dd4969a8 JG |
46 | { |
47 | mvs_tag_clear(mvi, tag); | |
48 | } | |
8f261aaf | 49 | |
20b09c29 | 50 | void mvs_tag_set(struct mvs_info *mvi, unsigned int tag) |
dd4969a8 | 51 | { |
b89e8f53 | 52 | void *bitmap = mvi->tags; |
dd4969a8 JG |
53 | set_bit(tag, bitmap); |
54 | } | |
8f261aaf | 55 | |
20b09c29 | 56 | inline int mvs_tag_alloc(struct mvs_info *mvi, u32 *tag_out) |
dd4969a8 JG |
57 | { |
58 | unsigned int index, tag; | |
b89e8f53 | 59 | void *bitmap = mvi->tags; |
b5762948 | 60 | |
20b09c29 | 61 | index = find_first_zero_bit(bitmap, mvi->tags_num); |
dd4969a8 | 62 | tag = index; |
20b09c29 | 63 | if (tag >= mvi->tags_num) |
dd4969a8 JG |
64 | return -SAS_QUEUE_FULL; |
65 | mvs_tag_set(mvi, tag); | |
66 | *tag_out = tag; | |
67 | return 0; | |
68 | } | |
b5762948 | 69 | |
dd4969a8 JG |
70 | void mvs_tag_init(struct mvs_info *mvi) |
71 | { | |
72 | int i; | |
20b09c29 | 73 | for (i = 0; i < mvi->tags_num; ++i) |
dd4969a8 JG |
74 | mvs_tag_clear(mvi, i); |
75 | } | |
b5762948 | 76 | |
20b09c29 AY |
77 | struct mvs_info *mvs_find_dev_mvi(struct domain_device *dev) |
78 | { | |
79 | unsigned long i = 0, j = 0, hi = 0; | |
80 | struct sas_ha_struct *sha = dev->port->ha; | |
81 | struct mvs_info *mvi = NULL; | |
82 | struct asd_sas_phy *phy; | |
83 | ||
84 | while (sha->sas_port[i]) { | |
85 | if (sha->sas_port[i] == dev->port) { | |
86 | phy = container_of(sha->sas_port[i]->phy_list.next, | |
87 | struct asd_sas_phy, port_phy_el); | |
88 | j = 0; | |
89 | while (sha->sas_phy[j]) { | |
90 | if (sha->sas_phy[j] == phy) | |
91 | break; | |
92 | j++; | |
93 | } | |
94 | break; | |
95 | } | |
96 | i++; | |
97 | } | |
98 | hi = j/((struct mvs_prv_info *)sha->lldd_ha)->n_phy; | |
99 | mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[hi]; | |
8f261aaf | 100 | |
20b09c29 | 101 | return mvi; |
8f261aaf | 102 | |
20b09c29 | 103 | } |
8f261aaf | 104 | |
20b09c29 AY |
105 | int mvs_find_dev_phyno(struct domain_device *dev, int *phyno) |
106 | { | |
107 | unsigned long i = 0, j = 0, n = 0, num = 0; | |
9870d9a2 AY |
108 | struct mvs_device *mvi_dev = (struct mvs_device *)dev->lldd_dev; |
109 | struct mvs_info *mvi = mvi_dev->mvi_info; | |
20b09c29 AY |
110 | struct sas_ha_struct *sha = dev->port->ha; |
111 | ||
112 | while (sha->sas_port[i]) { | |
113 | if (sha->sas_port[i] == dev->port) { | |
114 | struct asd_sas_phy *phy; | |
115 | list_for_each_entry(phy, | |
116 | &sha->sas_port[i]->phy_list, port_phy_el) { | |
117 | j = 0; | |
118 | while (sha->sas_phy[j]) { | |
119 | if (sha->sas_phy[j] == phy) | |
120 | break; | |
121 | j++; | |
122 | } | |
123 | phyno[n] = (j >= mvi->chip->n_phy) ? | |
124 | (j - mvi->chip->n_phy) : j; | |
125 | num++; | |
126 | n++; | |
dd4969a8 | 127 | } |
dd4969a8 JG |
128 | break; |
129 | } | |
20b09c29 AY |
130 | i++; |
131 | } | |
132 | return num; | |
133 | } | |
134 | ||
534ff101 XY |
135 | struct mvs_device *mvs_find_dev_by_reg_set(struct mvs_info *mvi, |
136 | u8 reg_set) | |
137 | { | |
138 | u32 dev_no; | |
139 | for (dev_no = 0; dev_no < MVS_MAX_DEVICES; dev_no++) { | |
140 | if (mvi->devices[dev_no].taskfileset == MVS_ID_NOT_MAPPED) | |
141 | continue; | |
142 | ||
143 | if (mvi->devices[dev_no].taskfileset == reg_set) | |
144 | return &mvi->devices[dev_no]; | |
145 | } | |
146 | return NULL; | |
147 | } | |
148 | ||
20b09c29 AY |
149 | static inline void mvs_free_reg_set(struct mvs_info *mvi, |
150 | struct mvs_device *dev) | |
151 | { | |
152 | if (!dev) { | |
153 | mv_printk("device has been free.\n"); | |
154 | return; | |
155 | } | |
20b09c29 AY |
156 | if (dev->taskfileset == MVS_ID_NOT_MAPPED) |
157 | return; | |
158 | MVS_CHIP_DISP->free_reg_set(mvi, &dev->taskfileset); | |
159 | } | |
160 | ||
161 | static inline u8 mvs_assign_reg_set(struct mvs_info *mvi, | |
162 | struct mvs_device *dev) | |
163 | { | |
164 | if (dev->taskfileset != MVS_ID_NOT_MAPPED) | |
165 | return 0; | |
166 | return MVS_CHIP_DISP->assign_reg_set(mvi, &dev->taskfileset); | |
167 | } | |
168 | ||
169 | void mvs_phys_reset(struct mvs_info *mvi, u32 phy_mask, int hard) | |
170 | { | |
171 | u32 no; | |
172 | for_each_phy(phy_mask, phy_mask, no) { | |
173 | if (!(phy_mask & 1)) | |
174 | continue; | |
175 | MVS_CHIP_DISP->phy_reset(mvi, no, hard); | |
176 | } | |
177 | } | |
178 | ||
20b09c29 AY |
179 | int mvs_phy_control(struct asd_sas_phy *sas_phy, enum phy_func func, |
180 | void *funcdata) | |
181 | { | |
182 | int rc = 0, phy_id = sas_phy->id; | |
183 | u32 tmp, i = 0, hi; | |
184 | struct sas_ha_struct *sha = sas_phy->ha; | |
185 | struct mvs_info *mvi = NULL; | |
186 | ||
187 | while (sha->sas_phy[i]) { | |
188 | if (sha->sas_phy[i] == sas_phy) | |
189 | break; | |
190 | i++; | |
191 | } | |
192 | hi = i/((struct mvs_prv_info *)sha->lldd_ha)->n_phy; | |
193 | mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[hi]; | |
194 | ||
195 | switch (func) { | |
196 | case PHY_FUNC_SET_LINK_RATE: | |
197 | MVS_CHIP_DISP->phy_set_link_rate(mvi, phy_id, funcdata); | |
198 | break; | |
8f261aaf | 199 | |
dd4969a8 | 200 | case PHY_FUNC_HARD_RESET: |
20b09c29 | 201 | tmp = MVS_CHIP_DISP->read_phy_ctl(mvi, phy_id); |
dd4969a8 JG |
202 | if (tmp & PHY_RST_HARD) |
203 | break; | |
a4632aae | 204 | MVS_CHIP_DISP->phy_reset(mvi, phy_id, MVS_HARD_RESET); |
dd4969a8 | 205 | break; |
b5762948 | 206 | |
dd4969a8 | 207 | case PHY_FUNC_LINK_RESET: |
20b09c29 | 208 | MVS_CHIP_DISP->phy_enable(mvi, phy_id); |
a4632aae | 209 | MVS_CHIP_DISP->phy_reset(mvi, phy_id, MVS_SOFT_RESET); |
dd4969a8 | 210 | break; |
b5762948 | 211 | |
dd4969a8 | 212 | case PHY_FUNC_DISABLE: |
20b09c29 AY |
213 | MVS_CHIP_DISP->phy_disable(mvi, phy_id); |
214 | break; | |
dd4969a8 JG |
215 | case PHY_FUNC_RELEASE_SPINUP_HOLD: |
216 | default: | |
ac013ed1 | 217 | rc = -ENOSYS; |
b5762948 | 218 | } |
20b09c29 | 219 | msleep(200); |
b5762948 JG |
220 | return rc; |
221 | } | |
222 | ||
6f039790 GKH |
223 | void mvs_set_sas_addr(struct mvs_info *mvi, int port_id, u32 off_lo, |
224 | u32 off_hi, u64 sas_addr) | |
20b09c29 AY |
225 | { |
226 | u32 lo = (u32)sas_addr; | |
227 | u32 hi = (u32)(sas_addr>>32); | |
228 | ||
229 | MVS_CHIP_DISP->write_port_cfg_addr(mvi, port_id, off_lo); | |
230 | MVS_CHIP_DISP->write_port_cfg_data(mvi, port_id, lo); | |
231 | MVS_CHIP_DISP->write_port_cfg_addr(mvi, port_id, off_hi); | |
232 | MVS_CHIP_DISP->write_port_cfg_data(mvi, port_id, hi); | |
233 | } | |
234 | ||
dd4969a8 | 235 | static void mvs_bytes_dmaed(struct mvs_info *mvi, int i) |
ee1f1c2e | 236 | { |
dd4969a8 | 237 | struct mvs_phy *phy = &mvi->phy[i]; |
20b09c29 AY |
238 | struct asd_sas_phy *sas_phy = &phy->sas_phy; |
239 | struct sas_ha_struct *sas_ha; | |
dd4969a8 JG |
240 | if (!phy->phy_attached) |
241 | return; | |
242 | ||
20b09c29 AY |
243 | if (!(phy->att_dev_info & PORT_DEV_TRGT_MASK) |
244 | && phy->phy_type & PORT_TYPE_SAS) { | |
245 | return; | |
246 | } | |
247 | ||
248 | sas_ha = mvi->sas; | |
249 | sas_ha->notify_phy_event(sas_phy, PHYE_OOB_DONE); | |
250 | ||
dd4969a8 JG |
251 | if (sas_phy->phy) { |
252 | struct sas_phy *sphy = sas_phy->phy; | |
253 | ||
254 | sphy->negotiated_linkrate = sas_phy->linkrate; | |
255 | sphy->minimum_linkrate = phy->minimum_linkrate; | |
256 | sphy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS; | |
257 | sphy->maximum_linkrate = phy->maximum_linkrate; | |
20b09c29 | 258 | sphy->maximum_linkrate_hw = MVS_CHIP_DISP->phy_max_link_rate(); |
ee1f1c2e | 259 | } |
ee1f1c2e | 260 | |
dd4969a8 JG |
261 | if (phy->phy_type & PORT_TYPE_SAS) { |
262 | struct sas_identify_frame *id; | |
b5762948 | 263 | |
dd4969a8 JG |
264 | id = (struct sas_identify_frame *)phy->frame_rcvd; |
265 | id->dev_type = phy->identify.device_type; | |
266 | id->initiator_bits = SAS_PROTOCOL_ALL; | |
267 | id->target_bits = phy->identify.target_port_protocols; | |
477f6d19 XY |
268 | |
269 | /* direct attached SAS device */ | |
270 | if (phy->att_dev_info & PORT_SSP_TRGT_MASK) { | |
271 | MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_PHY_STAT); | |
272 | MVS_CHIP_DISP->write_port_cfg_data(mvi, i, 0x00); | |
273 | } | |
dd4969a8 | 274 | } else if (phy->phy_type & PORT_TYPE_SATA) { |
20b09c29 | 275 | /*Nothing*/ |
dd4969a8 | 276 | } |
20b09c29 AY |
277 | mv_dprintk("phy %d byte dmaded.\n", i + mvi->id * mvi->chip->n_phy); |
278 | ||
279 | sas_phy->frame_rcvd_size = phy->frame_rcvd_size; | |
280 | ||
281 | mvi->sas->notify_port_event(sas_phy, | |
dd4969a8 | 282 | PORTE_BYTES_DMAED); |
ee1f1c2e KW |
283 | } |
284 | ||
dd4969a8 | 285 | void mvs_scan_start(struct Scsi_Host *shost) |
b5762948 | 286 | { |
20b09c29 AY |
287 | int i, j; |
288 | unsigned short core_nr; | |
289 | struct mvs_info *mvi; | |
290 | struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); | |
84fbd0ce | 291 | struct mvs_prv_info *mvs_prv = sha->lldd_ha; |
20b09c29 AY |
292 | |
293 | core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host; | |
dd4969a8 | 294 | |
20b09c29 AY |
295 | for (j = 0; j < core_nr; j++) { |
296 | mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[j]; | |
297 | for (i = 0; i < mvi->chip->n_phy; ++i) | |
298 | mvs_bytes_dmaed(mvi, i); | |
dd4969a8 | 299 | } |
84fbd0ce | 300 | mvs_prv->scan_finished = 1; |
b5762948 JG |
301 | } |
302 | ||
dd4969a8 | 303 | int mvs_scan_finished(struct Scsi_Host *shost, unsigned long time) |
b5762948 | 304 | { |
84fbd0ce XY |
305 | struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); |
306 | struct mvs_prv_info *mvs_prv = sha->lldd_ha; | |
307 | ||
308 | if (mvs_prv->scan_finished == 0) | |
dd4969a8 | 309 | return 0; |
84fbd0ce | 310 | |
b1124cd3 | 311 | sas_drain_work(sha); |
dd4969a8 | 312 | return 1; |
b5762948 JG |
313 | } |
314 | ||
dd4969a8 JG |
315 | static int mvs_task_prep_smp(struct mvs_info *mvi, |
316 | struct mvs_task_exec_info *tei) | |
b5762948 | 317 | { |
dd4969a8 | 318 | int elem, rc, i; |
7c237c5f | 319 | struct sas_ha_struct *sha = mvi->sas; |
dd4969a8 JG |
320 | struct sas_task *task = tei->task; |
321 | struct mvs_cmd_hdr *hdr = tei->hdr; | |
20b09c29 AY |
322 | struct domain_device *dev = task->dev; |
323 | struct asd_sas_port *sas_port = dev->port; | |
7c237c5f XY |
324 | struct sas_phy *sphy = dev->phy; |
325 | struct asd_sas_phy *sas_phy = sha->sas_phy[sphy->number]; | |
dd4969a8 JG |
326 | struct scatterlist *sg_req, *sg_resp; |
327 | u32 req_len, resp_len, tag = tei->tag; | |
328 | void *buf_tmp; | |
329 | u8 *buf_oaf; | |
330 | dma_addr_t buf_tmp_dma; | |
20b09c29 | 331 | void *buf_prd; |
dd4969a8 | 332 | struct mvs_slot_info *slot = &mvi->slot_info[tag]; |
dd4969a8 | 333 | u32 flags = (tei->n_elem << MCH_PRD_LEN_SHIFT); |
b89e8f53 | 334 | |
dd4969a8 JG |
335 | /* |
336 | * DMA-map SMP request, response buffers | |
337 | */ | |
338 | sg_req = &task->smp_task.smp_req; | |
20b09c29 | 339 | elem = dma_map_sg(mvi->dev, sg_req, 1, PCI_DMA_TODEVICE); |
dd4969a8 JG |
340 | if (!elem) |
341 | return -ENOMEM; | |
342 | req_len = sg_dma_len(sg_req); | |
b5762948 | 343 | |
dd4969a8 | 344 | sg_resp = &task->smp_task.smp_resp; |
20b09c29 | 345 | elem = dma_map_sg(mvi->dev, sg_resp, 1, PCI_DMA_FROMDEVICE); |
dd4969a8 JG |
346 | if (!elem) { |
347 | rc = -ENOMEM; | |
348 | goto err_out; | |
349 | } | |
20b09c29 | 350 | resp_len = SB_RFB_MAX; |
b5762948 | 351 | |
dd4969a8 JG |
352 | /* must be in dwords */ |
353 | if ((req_len & 0x3) || (resp_len & 0x3)) { | |
354 | rc = -EINVAL; | |
355 | goto err_out_2; | |
b5762948 JG |
356 | } |
357 | ||
dd4969a8 JG |
358 | /* |
359 | * arrange MVS_SLOT_BUF_SZ-sized DMA buffer according to our needs | |
360 | */ | |
b5762948 | 361 | |
20b09c29 | 362 | /* region 1: command table area (MVS_SSP_CMD_SZ bytes) ***** */ |
dd4969a8 JG |
363 | buf_tmp = slot->buf; |
364 | buf_tmp_dma = slot->buf_dma; | |
b5762948 | 365 | |
dd4969a8 | 366 | hdr->cmd_tbl = cpu_to_le64(sg_dma_address(sg_req)); |
b5762948 | 367 | |
dd4969a8 JG |
368 | /* region 2: open address frame area (MVS_OAF_SZ bytes) ********* */ |
369 | buf_oaf = buf_tmp; | |
370 | hdr->open_frame = cpu_to_le64(buf_tmp_dma); | |
b5762948 | 371 | |
dd4969a8 JG |
372 | buf_tmp += MVS_OAF_SZ; |
373 | buf_tmp_dma += MVS_OAF_SZ; | |
b5762948 | 374 | |
20b09c29 | 375 | /* region 3: PRD table *********************************** */ |
dd4969a8 JG |
376 | buf_prd = buf_tmp; |
377 | if (tei->n_elem) | |
378 | hdr->prd_tbl = cpu_to_le64(buf_tmp_dma); | |
379 | else | |
380 | hdr->prd_tbl = 0; | |
b5762948 | 381 | |
20b09c29 | 382 | i = MVS_CHIP_DISP->prd_size() * tei->n_elem; |
dd4969a8 JG |
383 | buf_tmp += i; |
384 | buf_tmp_dma += i; | |
b5762948 | 385 | |
dd4969a8 JG |
386 | /* region 4: status buffer (larger the PRD, smaller this buf) ****** */ |
387 | slot->response = buf_tmp; | |
388 | hdr->status_buf = cpu_to_le64(buf_tmp_dma); | |
20b09c29 AY |
389 | if (mvi->flags & MVF_FLAG_SOC) |
390 | hdr->reserved[0] = 0; | |
b5762948 | 391 | |
dd4969a8 JG |
392 | /* |
393 | * Fill in TX ring and command slot header | |
394 | */ | |
395 | slot->tx = mvi->tx_prod; | |
396 | mvi->tx[mvi->tx_prod] = cpu_to_le32((TXQ_CMD_SMP << TXQ_CMD_SHIFT) | | |
397 | TXQ_MODE_I | tag | | |
7c237c5f | 398 | (MVS_PHY_ID << TXQ_PHY_SHIFT)); |
b5762948 | 399 | |
dd4969a8 JG |
400 | hdr->flags |= flags; |
401 | hdr->lens = cpu_to_le32(((resp_len / 4) << 16) | ((req_len - 4) / 4)); | |
402 | hdr->tags = cpu_to_le32(tag); | |
403 | hdr->data_len = 0; | |
b5762948 | 404 | |
dd4969a8 | 405 | /* generate open address frame hdr (first 12 bytes) */ |
20b09c29 AY |
406 | /* initiator, SMP, ftype 1h */ |
407 | buf_oaf[0] = (1 << 7) | (PROTOCOL_SMP << 4) | 0x01; | |
6ceae7c6 | 408 | buf_oaf[1] = min(sas_port->linkrate, dev->linkrate) & 0xf; |
dd4969a8 | 409 | *(u16 *)(buf_oaf + 2) = 0xFFFF; /* SAS SPEC */ |
20b09c29 | 410 | memcpy(buf_oaf + 4, dev->sas_addr, SAS_ADDR_SIZE); |
dd4969a8 JG |
411 | |
412 | /* fill in PRD (scatter/gather) table, if any */ | |
20b09c29 | 413 | MVS_CHIP_DISP->make_prd(task->scatter, tei->n_elem, buf_prd); |
b5762948 JG |
414 | |
415 | return 0; | |
416 | ||
dd4969a8 | 417 | err_out_2: |
20b09c29 | 418 | dma_unmap_sg(mvi->dev, &tei->task->smp_task.smp_resp, 1, |
dd4969a8 | 419 | PCI_DMA_FROMDEVICE); |
b5762948 | 420 | err_out: |
20b09c29 | 421 | dma_unmap_sg(mvi->dev, &tei->task->smp_task.smp_req, 1, |
dd4969a8 | 422 | PCI_DMA_TODEVICE); |
8f261aaf | 423 | return rc; |
8f261aaf KW |
424 | } |
425 | ||
dd4969a8 | 426 | static u32 mvs_get_ncq_tag(struct sas_task *task, u32 *tag) |
8f261aaf | 427 | { |
dd4969a8 | 428 | struct ata_queued_cmd *qc = task->uldd_task; |
8f261aaf | 429 | |
dd4969a8 JG |
430 | if (qc) { |
431 | if (qc->tf.command == ATA_CMD_FPDMA_WRITE || | |
432 | qc->tf.command == ATA_CMD_FPDMA_READ) { | |
433 | *tag = qc->tag; | |
434 | return 1; | |
435 | } | |
8f261aaf | 436 | } |
8f261aaf | 437 | |
dd4969a8 | 438 | return 0; |
8f261aaf KW |
439 | } |
440 | ||
dd4969a8 JG |
441 | static int mvs_task_prep_ata(struct mvs_info *mvi, |
442 | struct mvs_task_exec_info *tei) | |
b5762948 | 443 | { |
7c237c5f | 444 | struct sas_ha_struct *sha = mvi->sas; |
b5762948 JG |
445 | struct sas_task *task = tei->task; |
446 | struct domain_device *dev = task->dev; | |
f9da3be5 | 447 | struct mvs_device *mvi_dev = dev->lldd_dev; |
b5762948 JG |
448 | struct mvs_cmd_hdr *hdr = tei->hdr; |
449 | struct asd_sas_port *sas_port = dev->port; | |
7c237c5f XY |
450 | struct sas_phy *sphy = dev->phy; |
451 | struct asd_sas_phy *sas_phy = sha->sas_phy[sphy->number]; | |
8f261aaf | 452 | struct mvs_slot_info *slot; |
20b09c29 AY |
453 | void *buf_prd; |
454 | u32 tag = tei->tag, hdr_tag; | |
455 | u32 flags, del_q; | |
b5762948 JG |
456 | void *buf_tmp; |
457 | u8 *buf_cmd, *buf_oaf; | |
458 | dma_addr_t buf_tmp_dma; | |
8f261aaf KW |
459 | u32 i, req_len, resp_len; |
460 | const u32 max_resp_len = SB_RFB_MAX; | |
461 | ||
20b09c29 AY |
462 | if (mvs_assign_reg_set(mvi, mvi_dev) == MVS_ID_NOT_MAPPED) { |
463 | mv_dprintk("Have not enough regiset for dev %d.\n", | |
464 | mvi_dev->device_id); | |
8f261aaf | 465 | return -EBUSY; |
20b09c29 | 466 | } |
8f261aaf KW |
467 | slot = &mvi->slot_info[tag]; |
468 | slot->tx = mvi->tx_prod; | |
20b09c29 AY |
469 | del_q = TXQ_MODE_I | tag | |
470 | (TXQ_CMD_STP << TXQ_CMD_SHIFT) | | |
7c237c5f | 471 | (MVS_PHY_ID << TXQ_PHY_SHIFT) | |
20b09c29 AY |
472 | (mvi_dev->taskfileset << TXQ_SRS_SHIFT); |
473 | mvi->tx[mvi->tx_prod] = cpu_to_le32(del_q); | |
474 | ||
20b09c29 AY |
475 | if (task->data_dir == DMA_FROM_DEVICE) |
476 | flags = (MVS_CHIP_DISP->prd_count() << MCH_PRD_LEN_SHIFT); | |
477 | else | |
478 | flags = (tei->n_elem << MCH_PRD_LEN_SHIFT); | |
8882f081 | 479 | |
b5762948 JG |
480 | if (task->ata_task.use_ncq) |
481 | flags |= MCH_FPDMA; | |
1cbd772d | 482 | if (dev->sata_dev.class == ATA_DEV_ATAPI) { |
8f261aaf KW |
483 | if (task->ata_task.fis.command != ATA_CMD_ID_ATAPI) |
484 | flags |= MCH_ATAPI; | |
485 | } | |
486 | ||
b5762948 | 487 | hdr->flags = cpu_to_le32(flags); |
8f261aaf | 488 | |
20b09c29 AY |
489 | if (task->ata_task.use_ncq && mvs_get_ncq_tag(task, &hdr_tag)) |
490 | task->ata_task.fis.sector_count |= (u8) (hdr_tag << 3); | |
4e52fc0a | 491 | else |
20b09c29 AY |
492 | hdr_tag = tag; |
493 | ||
494 | hdr->tags = cpu_to_le32(hdr_tag); | |
495 | ||
b5762948 JG |
496 | hdr->data_len = cpu_to_le32(task->total_xfer_len); |
497 | ||
498 | /* | |
499 | * arrange MVS_SLOT_BUF_SZ-sized DMA buffer according to our needs | |
500 | */ | |
b5762948 | 501 | |
8f261aaf KW |
502 | /* region 1: command table area (MVS_ATA_CMD_SZ bytes) ************** */ |
503 | buf_cmd = buf_tmp = slot->buf; | |
b5762948 JG |
504 | buf_tmp_dma = slot->buf_dma; |
505 | ||
506 | hdr->cmd_tbl = cpu_to_le64(buf_tmp_dma); | |
507 | ||
508 | buf_tmp += MVS_ATA_CMD_SZ; | |
509 | buf_tmp_dma += MVS_ATA_CMD_SZ; | |
510 | ||
8f261aaf | 511 | /* region 2: open address frame area (MVS_OAF_SZ bytes) ********* */ |
b5762948 JG |
512 | /* used for STP. unused for SATA? */ |
513 | buf_oaf = buf_tmp; | |
514 | hdr->open_frame = cpu_to_le64(buf_tmp_dma); | |
515 | ||
516 | buf_tmp += MVS_OAF_SZ; | |
517 | buf_tmp_dma += MVS_OAF_SZ; | |
518 | ||
8f261aaf | 519 | /* region 3: PRD table ********************************************* */ |
b5762948 | 520 | buf_prd = buf_tmp; |
20b09c29 | 521 | |
8f261aaf KW |
522 | if (tei->n_elem) |
523 | hdr->prd_tbl = cpu_to_le64(buf_tmp_dma); | |
524 | else | |
525 | hdr->prd_tbl = 0; | |
20b09c29 | 526 | i = MVS_CHIP_DISP->prd_size() * MVS_CHIP_DISP->prd_count(); |
b5762948 | 527 | |
b5762948 JG |
528 | buf_tmp += i; |
529 | buf_tmp_dma += i; | |
530 | ||
8f261aaf | 531 | /* region 4: status buffer (larger the PRD, smaller this buf) ****** */ |
b5762948 JG |
532 | slot->response = buf_tmp; |
533 | hdr->status_buf = cpu_to_le64(buf_tmp_dma); | |
20b09c29 AY |
534 | if (mvi->flags & MVF_FLAG_SOC) |
535 | hdr->reserved[0] = 0; | |
b5762948 | 536 | |
8f261aaf | 537 | req_len = sizeof(struct host_to_dev_fis); |
b5762948 | 538 | resp_len = MVS_SLOT_BUF_SZ - MVS_ATA_CMD_SZ - |
8f261aaf | 539 | sizeof(struct mvs_err_info) - i; |
b5762948 JG |
540 | |
541 | /* request, response lengths */ | |
8f261aaf | 542 | resp_len = min(resp_len, max_resp_len); |
b5762948 JG |
543 | hdr->lens = cpu_to_le32(((resp_len / 4) << 16) | (req_len / 4)); |
544 | ||
20b09c29 AY |
545 | if (likely(!task->ata_task.device_control_reg_update)) |
546 | task->ata_task.fis.flags |= 0x80; /* C=1: update ATA cmd reg */ | |
b5762948 | 547 | /* fill in command FIS and ATAPI CDB */ |
8f261aaf | 548 | memcpy(buf_cmd, &task->ata_task.fis, sizeof(struct host_to_dev_fis)); |
1cbd772d | 549 | if (dev->sata_dev.class == ATA_DEV_ATAPI) |
8f261aaf KW |
550 | memcpy(buf_cmd + STP_ATAPI_CMD, |
551 | task->ata_task.atapi_packet, 16); | |
552 | ||
553 | /* generate open address frame hdr (first 12 bytes) */ | |
20b09c29 AY |
554 | /* initiator, STP, ftype 1h */ |
555 | buf_oaf[0] = (1 << 7) | (PROTOCOL_STP << 4) | 0x1; | |
6ceae7c6 | 556 | buf_oaf[1] = min(sas_port->linkrate, dev->linkrate) & 0xf; |
20b09c29 AY |
557 | *(u16 *)(buf_oaf + 2) = cpu_to_be16(mvi_dev->device_id + 1); |
558 | memcpy(buf_oaf + 4, dev->sas_addr, SAS_ADDR_SIZE); | |
b5762948 JG |
559 | |
560 | /* fill in PRD (scatter/gather) table, if any */ | |
20b09c29 | 561 | MVS_CHIP_DISP->make_prd(task->scatter, tei->n_elem, buf_prd); |
8882f081 | 562 | |
20b09c29 | 563 | if (task->data_dir == DMA_FROM_DEVICE) |
8882f081 | 564 | MVS_CHIP_DISP->dma_fix(mvi, sas_port->phy_mask, |
20b09c29 | 565 | TRASH_BUCKET_SIZE, tei->n_elem, buf_prd); |
8882f081 | 566 | |
b5762948 JG |
567 | return 0; |
568 | } | |
569 | ||
570 | static int mvs_task_prep_ssp(struct mvs_info *mvi, | |
20b09c29 AY |
571 | struct mvs_task_exec_info *tei, int is_tmf, |
572 | struct mvs_tmf_task *tmf) | |
b5762948 JG |
573 | { |
574 | struct sas_task *task = tei->task; | |
b5762948 | 575 | struct mvs_cmd_hdr *hdr = tei->hdr; |
8f261aaf | 576 | struct mvs_port *port = tei->port; |
20b09c29 | 577 | struct domain_device *dev = task->dev; |
f9da3be5 | 578 | struct mvs_device *mvi_dev = dev->lldd_dev; |
20b09c29 | 579 | struct asd_sas_port *sas_port = dev->port; |
b5762948 | 580 | struct mvs_slot_info *slot; |
20b09c29 | 581 | void *buf_prd; |
b5762948 JG |
582 | struct ssp_frame_hdr *ssp_hdr; |
583 | void *buf_tmp; | |
584 | u8 *buf_cmd, *buf_oaf, fburst = 0; | |
585 | dma_addr_t buf_tmp_dma; | |
586 | u32 flags; | |
8f261aaf KW |
587 | u32 resp_len, req_len, i, tag = tei->tag; |
588 | const u32 max_resp_len = SB_RFB_MAX; | |
20b09c29 | 589 | u32 phy_mask; |
b5762948 JG |
590 | |
591 | slot = &mvi->slot_info[tag]; | |
592 | ||
20b09c29 AY |
593 | phy_mask = ((port->wide_port_phymap) ? port->wide_port_phymap : |
594 | sas_port->phy_mask) & TXQ_PHY_MASK; | |
595 | ||
8f261aaf KW |
596 | slot->tx = mvi->tx_prod; |
597 | mvi->tx[mvi->tx_prod] = cpu_to_le32(TXQ_MODE_I | tag | | |
598 | (TXQ_CMD_SSP << TXQ_CMD_SHIFT) | | |
4e52fc0a | 599 | (phy_mask << TXQ_PHY_SHIFT)); |
b5762948 JG |
600 | |
601 | flags = MCH_RETRY; | |
602 | if (task->ssp_task.enable_first_burst) { | |
603 | flags |= MCH_FBURST; | |
604 | fburst = (1 << 7); | |
605 | } | |
2b288133 AY |
606 | if (is_tmf) |
607 | flags |= (MCH_SSP_FR_TASK << MCH_SSP_FR_TYPE_SHIFT); | |
84fbd0ce XY |
608 | else |
609 | flags |= (MCH_SSP_FR_CMD << MCH_SSP_FR_TYPE_SHIFT); | |
610 | ||
2b288133 | 611 | hdr->flags = cpu_to_le32(flags | (tei->n_elem << MCH_PRD_LEN_SHIFT)); |
b5762948 JG |
612 | hdr->tags = cpu_to_le32(tag); |
613 | hdr->data_len = cpu_to_le32(task->total_xfer_len); | |
614 | ||
615 | /* | |
616 | * arrange MVS_SLOT_BUF_SZ-sized DMA buffer according to our needs | |
617 | */ | |
b5762948 | 618 | |
8f261aaf KW |
619 | /* region 1: command table area (MVS_SSP_CMD_SZ bytes) ************** */ |
620 | buf_cmd = buf_tmp = slot->buf; | |
b5762948 JG |
621 | buf_tmp_dma = slot->buf_dma; |
622 | ||
623 | hdr->cmd_tbl = cpu_to_le64(buf_tmp_dma); | |
624 | ||
625 | buf_tmp += MVS_SSP_CMD_SZ; | |
626 | buf_tmp_dma += MVS_SSP_CMD_SZ; | |
627 | ||
8f261aaf | 628 | /* region 2: open address frame area (MVS_OAF_SZ bytes) ********* */ |
b5762948 JG |
629 | buf_oaf = buf_tmp; |
630 | hdr->open_frame = cpu_to_le64(buf_tmp_dma); | |
631 | ||
632 | buf_tmp += MVS_OAF_SZ; | |
633 | buf_tmp_dma += MVS_OAF_SZ; | |
634 | ||
8f261aaf | 635 | /* region 3: PRD table ********************************************* */ |
b5762948 | 636 | buf_prd = buf_tmp; |
8f261aaf KW |
637 | if (tei->n_elem) |
638 | hdr->prd_tbl = cpu_to_le64(buf_tmp_dma); | |
639 | else | |
640 | hdr->prd_tbl = 0; | |
b5762948 | 641 | |
20b09c29 | 642 | i = MVS_CHIP_DISP->prd_size() * tei->n_elem; |
b5762948 JG |
643 | buf_tmp += i; |
644 | buf_tmp_dma += i; | |
645 | ||
8f261aaf | 646 | /* region 4: status buffer (larger the PRD, smaller this buf) ****** */ |
b5762948 JG |
647 | slot->response = buf_tmp; |
648 | hdr->status_buf = cpu_to_le64(buf_tmp_dma); | |
20b09c29 AY |
649 | if (mvi->flags & MVF_FLAG_SOC) |
650 | hdr->reserved[0] = 0; | |
b5762948 | 651 | |
b5762948 | 652 | resp_len = MVS_SLOT_BUF_SZ - MVS_SSP_CMD_SZ - MVS_OAF_SZ - |
8f261aaf KW |
653 | sizeof(struct mvs_err_info) - i; |
654 | resp_len = min(resp_len, max_resp_len); | |
655 | ||
656 | req_len = sizeof(struct ssp_frame_hdr) + 28; | |
b5762948 JG |
657 | |
658 | /* request, response lengths */ | |
659 | hdr->lens = cpu_to_le32(((resp_len / 4) << 16) | (req_len / 4)); | |
660 | ||
661 | /* generate open address frame hdr (first 12 bytes) */ | |
20b09c29 AY |
662 | /* initiator, SSP, ftype 1h */ |
663 | buf_oaf[0] = (1 << 7) | (PROTOCOL_SSP << 4) | 0x1; | |
6ceae7c6 | 664 | buf_oaf[1] = min(sas_port->linkrate, dev->linkrate) & 0xf; |
20b09c29 AY |
665 | *(u16 *)(buf_oaf + 2) = cpu_to_be16(mvi_dev->device_id + 1); |
666 | memcpy(buf_oaf + 4, dev->sas_addr, SAS_ADDR_SIZE); | |
b5762948 | 667 | |
8f261aaf KW |
668 | /* fill in SSP frame header (Command Table.SSP frame header) */ |
669 | ssp_hdr = (struct ssp_frame_hdr *)buf_cmd; | |
20b09c29 AY |
670 | |
671 | if (is_tmf) | |
672 | ssp_hdr->frame_type = SSP_TASK; | |
673 | else | |
674 | ssp_hdr->frame_type = SSP_COMMAND; | |
675 | ||
676 | memcpy(ssp_hdr->hashed_dest_addr, dev->hashed_sas_addr, | |
b5762948 JG |
677 | HASHED_SAS_ADDR_SIZE); |
678 | memcpy(ssp_hdr->hashed_src_addr, | |
20b09c29 | 679 | dev->hashed_sas_addr, HASHED_SAS_ADDR_SIZE); |
b5762948 JG |
680 | ssp_hdr->tag = cpu_to_be16(tag); |
681 | ||
20b09c29 | 682 | /* fill in IU for TASK and Command Frame */ |
b5762948 JG |
683 | buf_cmd += sizeof(*ssp_hdr); |
684 | memcpy(buf_cmd, &task->ssp_task.LUN, 8); | |
b5762948 | 685 | |
20b09c29 AY |
686 | if (ssp_hdr->frame_type != SSP_TASK) { |
687 | buf_cmd[9] = fburst | task->ssp_task.task_attr | | |
688 | (task->ssp_task.task_prio << 3); | |
e73823f7 JB |
689 | memcpy(buf_cmd + 12, task->ssp_task.cmd->cmnd, |
690 | task->ssp_task.cmd->cmd_len); | |
20b09c29 AY |
691 | } else{ |
692 | buf_cmd[10] = tmf->tmf; | |
693 | switch (tmf->tmf) { | |
694 | case TMF_ABORT_TASK: | |
695 | case TMF_QUERY_TASK: | |
696 | buf_cmd[12] = | |
697 | (tmf->tag_of_task_to_be_managed >> 8) & 0xff; | |
698 | buf_cmd[13] = | |
699 | tmf->tag_of_task_to_be_managed & 0xff; | |
700 | break; | |
701 | default: | |
702 | break; | |
703 | } | |
b5762948 | 704 | } |
20b09c29 AY |
705 | /* fill in PRD (scatter/gather) table, if any */ |
706 | MVS_CHIP_DISP->make_prd(task->scatter, tei->n_elem, buf_prd); | |
b5762948 JG |
707 | return 0; |
708 | } | |
709 | ||
aa9f8328 | 710 | #define DEV_IS_GONE(mvi_dev) ((!mvi_dev || (mvi_dev->dev_type == SAS_PHY_UNUSED))) |
0b15fb1f XY |
711 | static int mvs_task_prep(struct sas_task *task, struct mvs_info *mvi, int is_tmf, |
712 | struct mvs_tmf_task *tmf, int *pass) | |
b5762948 | 713 | { |
8f261aaf | 714 | struct domain_device *dev = task->dev; |
0b15fb1f | 715 | struct mvs_device *mvi_dev = dev->lldd_dev; |
b5762948 | 716 | struct mvs_task_exec_info tei; |
4e52fc0a | 717 | struct mvs_slot_info *slot; |
0b15fb1f XY |
718 | u32 tag = 0xdeadbeef, n_elem = 0; |
719 | int rc = 0; | |
b5762948 | 720 | |
20b09c29 | 721 | if (!dev->port) { |
0b15fb1f | 722 | struct task_status_struct *tsm = &task->task_status; |
20b09c29 AY |
723 | |
724 | tsm->resp = SAS_TASK_UNDELIVERED; | |
725 | tsm->stat = SAS_PHY_DOWN; | |
0b15fb1f XY |
726 | /* |
727 | * libsas will use dev->port, should | |
728 | * not call task_done for sata | |
729 | */ | |
aa9f8328 | 730 | if (dev->dev_type != SAS_SATA_DEV) |
0b15fb1f XY |
731 | task->task_done(task); |
732 | return rc; | |
20b09c29 AY |
733 | } |
734 | ||
0b15fb1f XY |
735 | if (DEV_IS_GONE(mvi_dev)) { |
736 | if (mvi_dev) | |
737 | mv_dprintk("device %d not ready.\n", | |
738 | mvi_dev->device_id); | |
739 | else | |
740 | mv_dprintk("device %016llx not ready.\n", | |
741 | SAS_ADDR(dev->sas_addr)); | |
20b09c29 AY |
742 | |
743 | rc = SAS_PHY_DOWN; | |
0b15fb1f XY |
744 | return rc; |
745 | } | |
746 | tei.port = dev->port->lldd_port; | |
747 | if (tei.port && !tei.port->port_attached && !tmf) { | |
748 | if (sas_protocol_ata(task->task_proto)) { | |
749 | struct task_status_struct *ts = &task->task_status; | |
750 | mv_dprintk("SATA/STP port %d does not attach" | |
751 | "device.\n", dev->port->id); | |
752 | ts->resp = SAS_TASK_COMPLETE; | |
753 | ts->stat = SAS_PHY_DOWN; | |
20b09c29 | 754 | |
0b15fb1f | 755 | task->task_done(task); |
dd4969a8 | 756 | |
dd4969a8 | 757 | } else { |
0b15fb1f XY |
758 | struct task_status_struct *ts = &task->task_status; |
759 | mv_dprintk("SAS port %d does not attach" | |
760 | "device.\n", dev->port->id); | |
761 | ts->resp = SAS_TASK_UNDELIVERED; | |
762 | ts->stat = SAS_PHY_DOWN; | |
763 | task->task_done(task); | |
dd4969a8 | 764 | } |
0b15fb1f XY |
765 | return rc; |
766 | } | |
dd4969a8 | 767 | |
0b15fb1f XY |
768 | if (!sas_protocol_ata(task->task_proto)) { |
769 | if (task->num_scatter) { | |
770 | n_elem = dma_map_sg(mvi->dev, | |
771 | task->scatter, | |
772 | task->num_scatter, | |
773 | task->data_dir); | |
774 | if (!n_elem) { | |
775 | rc = -ENOMEM; | |
776 | goto prep_out; | |
777 | } | |
778 | } | |
779 | } else { | |
780 | n_elem = task->num_scatter; | |
781 | } | |
20b09c29 | 782 | |
0b15fb1f XY |
783 | rc = mvs_tag_alloc(mvi, &tag); |
784 | if (rc) | |
785 | goto err_out; | |
20b09c29 | 786 | |
0b15fb1f | 787 | slot = &mvi->slot_info[tag]; |
20b09c29 | 788 | |
0b15fb1f XY |
789 | task->lldd_task = NULL; |
790 | slot->n_elem = n_elem; | |
791 | slot->slot_tag = tag; | |
792 | ||
793 | slot->buf = pci_pool_alloc(mvi->dma_pool, GFP_ATOMIC, &slot->buf_dma); | |
794 | if (!slot->buf) | |
795 | goto err_out_tag; | |
796 | memset(slot->buf, 0, MVS_SLOT_BUF_SZ); | |
797 | ||
798 | tei.task = task; | |
799 | tei.hdr = &mvi->slot[tag]; | |
800 | tei.tag = tag; | |
801 | tei.n_elem = n_elem; | |
802 | switch (task->task_proto) { | |
803 | case SAS_PROTOCOL_SMP: | |
804 | rc = mvs_task_prep_smp(mvi, &tei); | |
805 | break; | |
806 | case SAS_PROTOCOL_SSP: | |
807 | rc = mvs_task_prep_ssp(mvi, &tei, is_tmf, tmf); | |
808 | break; | |
809 | case SAS_PROTOCOL_SATA: | |
810 | case SAS_PROTOCOL_STP: | |
811 | case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: | |
812 | rc = mvs_task_prep_ata(mvi, &tei); | |
813 | break; | |
814 | default: | |
815 | dev_printk(KERN_ERR, mvi->dev, | |
816 | "unknown sas_task proto: 0x%x\n", | |
817 | task->task_proto); | |
818 | rc = -EINVAL; | |
819 | break; | |
820 | } | |
dd4969a8 | 821 | |
0b15fb1f XY |
822 | if (rc) { |
823 | mv_dprintk("rc is %x\n", rc); | |
824 | goto err_out_slot_buf; | |
825 | } | |
826 | slot->task = task; | |
827 | slot->port = tei.port; | |
828 | task->lldd_task = slot; | |
829 | list_add_tail(&slot->entry, &tei.port->list); | |
830 | spin_lock(&task->task_state_lock); | |
831 | task->task_state_flags |= SAS_TASK_AT_INITIATOR; | |
832 | spin_unlock(&task->task_state_lock); | |
833 | ||
0b15fb1f XY |
834 | mvi_dev->running_req++; |
835 | ++(*pass); | |
836 | mvi->tx_prod = (mvi->tx_prod + 1) & (MVS_CHIP_SLOT_SZ - 1); | |
9dc9fd94 | 837 | |
0b15fb1f | 838 | return rc; |
dd4969a8 | 839 | |
0b15fb1f XY |
840 | err_out_slot_buf: |
841 | pci_pool_free(mvi->dma_pool, slot->buf, slot->buf_dma); | |
dd4969a8 JG |
842 | err_out_tag: |
843 | mvs_tag_free(mvi, tag); | |
844 | err_out: | |
20b09c29 | 845 | |
0b15fb1f XY |
846 | dev_printk(KERN_ERR, mvi->dev, "mvsas prep failed[%d]!\n", rc); |
847 | if (!sas_protocol_ata(task->task_proto)) | |
dd4969a8 | 848 | if (n_elem) |
0b15fb1f XY |
849 | dma_unmap_sg(mvi->dev, task->scatter, n_elem, |
850 | task->data_dir); | |
851 | prep_out: | |
852 | return rc; | |
853 | } | |
854 | ||
79855d17 | 855 | static int mvs_task_exec(struct sas_task *task, gfp_t gfp_flags, |
0b15fb1f XY |
856 | struct completion *completion, int is_tmf, |
857 | struct mvs_tmf_task *tmf) | |
858 | { | |
0b15fb1f XY |
859 | struct mvs_info *mvi = NULL; |
860 | u32 rc = 0; | |
861 | u32 pass = 0; | |
862 | unsigned long flags = 0; | |
863 | ||
864 | mvi = ((struct mvs_device *)task->dev->lldd_dev)->mvi_info; | |
865 | ||
0b15fb1f XY |
866 | spin_lock_irqsave(&mvi->lock, flags); |
867 | rc = mvs_task_prep(task, mvi, is_tmf, tmf, &pass); | |
868 | if (rc) | |
869 | dev_printk(KERN_ERR, mvi->dev, "mvsas exec failed[%d]!\n", rc); | |
870 | ||
871 | if (likely(pass)) | |
872 | MVS_CHIP_DISP->start_delivery(mvi, (mvi->tx_prod - 1) & | |
873 | (MVS_CHIP_SLOT_SZ - 1)); | |
0b84b709 | 874 | spin_unlock_irqrestore(&mvi->lock, flags); |
0b15fb1f | 875 | |
0b15fb1f XY |
876 | return rc; |
877 | } | |
878 | ||
79855d17 | 879 | int mvs_queue_command(struct sas_task *task, gfp_t gfp_flags) |
20b09c29 | 880 | { |
79855d17 | 881 | return mvs_task_exec(task, gfp_flags, NULL, 0, NULL); |
20b09c29 AY |
882 | } |
883 | ||
dd4969a8 JG |
884 | static void mvs_slot_free(struct mvs_info *mvi, u32 rx_desc) |
885 | { | |
886 | u32 slot_idx = rx_desc & RXQ_SLOT_MASK; | |
887 | mvs_tag_clear(mvi, slot_idx); | |
888 | } | |
889 | ||
890 | static void mvs_slot_task_free(struct mvs_info *mvi, struct sas_task *task, | |
891 | struct mvs_slot_info *slot, u32 slot_idx) | |
892 | { | |
20b09c29 AY |
893 | if (!slot->task) |
894 | return; | |
dd4969a8 JG |
895 | if (!sas_protocol_ata(task->task_proto)) |
896 | if (slot->n_elem) | |
20b09c29 | 897 | dma_unmap_sg(mvi->dev, task->scatter, |
dd4969a8 JG |
898 | slot->n_elem, task->data_dir); |
899 | ||
900 | switch (task->task_proto) { | |
901 | case SAS_PROTOCOL_SMP: | |
20b09c29 | 902 | dma_unmap_sg(mvi->dev, &task->smp_task.smp_resp, 1, |
dd4969a8 | 903 | PCI_DMA_FROMDEVICE); |
20b09c29 | 904 | dma_unmap_sg(mvi->dev, &task->smp_task.smp_req, 1, |
dd4969a8 JG |
905 | PCI_DMA_TODEVICE); |
906 | break; | |
907 | ||
908 | case SAS_PROTOCOL_SATA: | |
909 | case SAS_PROTOCOL_STP: | |
910 | case SAS_PROTOCOL_SSP: | |
911 | default: | |
912 | /* do nothing */ | |
913 | break; | |
914 | } | |
0b15fb1f XY |
915 | |
916 | if (slot->buf) { | |
917 | pci_pool_free(mvi->dma_pool, slot->buf, slot->buf_dma); | |
918 | slot->buf = NULL; | |
919 | } | |
20b09c29 | 920 | list_del_init(&slot->entry); |
dd4969a8 JG |
921 | task->lldd_task = NULL; |
922 | slot->task = NULL; | |
923 | slot->port = NULL; | |
20b09c29 AY |
924 | slot->slot_tag = 0xFFFFFFFF; |
925 | mvs_slot_free(mvi, slot_idx); | |
dd4969a8 JG |
926 | } |
927 | ||
84fbd0ce | 928 | static void mvs_update_wideport(struct mvs_info *mvi, int phy_no) |
dd4969a8 | 929 | { |
84fbd0ce | 930 | struct mvs_phy *phy = &mvi->phy[phy_no]; |
dd4969a8 JG |
931 | struct mvs_port *port = phy->port; |
932 | int j, no; | |
933 | ||
20b09c29 AY |
934 | for_each_phy(port->wide_port_phymap, j, no) { |
935 | if (j & 1) { | |
936 | MVS_CHIP_DISP->write_port_cfg_addr(mvi, no, | |
937 | PHYR_WIDE_PORT); | |
938 | MVS_CHIP_DISP->write_port_cfg_data(mvi, no, | |
dd4969a8 JG |
939 | port->wide_port_phymap); |
940 | } else { | |
20b09c29 AY |
941 | MVS_CHIP_DISP->write_port_cfg_addr(mvi, no, |
942 | PHYR_WIDE_PORT); | |
943 | MVS_CHIP_DISP->write_port_cfg_data(mvi, no, | |
944 | 0); | |
dd4969a8 | 945 | } |
20b09c29 | 946 | } |
dd4969a8 JG |
947 | } |
948 | ||
949 | static u32 mvs_is_phy_ready(struct mvs_info *mvi, int i) | |
950 | { | |
951 | u32 tmp; | |
952 | struct mvs_phy *phy = &mvi->phy[i]; | |
20b09c29 | 953 | struct mvs_port *port = phy->port; |
dd4969a8 | 954 | |
20b09c29 | 955 | tmp = MVS_CHIP_DISP->read_phy_ctl(mvi, i); |
dd4969a8 JG |
956 | if ((tmp & PHY_READY_MASK) && !(phy->irq_status & PHYEV_POOF)) { |
957 | if (!port) | |
958 | phy->phy_attached = 1; | |
959 | return tmp; | |
960 | } | |
961 | ||
962 | if (port) { | |
963 | if (phy->phy_type & PORT_TYPE_SAS) { | |
964 | port->wide_port_phymap &= ~(1U << i); | |
965 | if (!port->wide_port_phymap) | |
966 | port->port_attached = 0; | |
967 | mvs_update_wideport(mvi, i); | |
968 | } else if (phy->phy_type & PORT_TYPE_SATA) | |
969 | port->port_attached = 0; | |
dd4969a8 JG |
970 | phy->port = NULL; |
971 | phy->phy_attached = 0; | |
972 | phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA); | |
973 | } | |
974 | return 0; | |
975 | } | |
976 | ||
977 | static void *mvs_get_d2h_reg(struct mvs_info *mvi, int i, void *buf) | |
978 | { | |
979 | u32 *s = (u32 *) buf; | |
980 | ||
981 | if (!s) | |
982 | return NULL; | |
983 | ||
20b09c29 | 984 | MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_SATA_SIG3); |
84fbd0ce | 985 | s[3] = cpu_to_le32(MVS_CHIP_DISP->read_port_cfg_data(mvi, i)); |
dd4969a8 | 986 | |
20b09c29 | 987 | MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_SATA_SIG2); |
84fbd0ce | 988 | s[2] = cpu_to_le32(MVS_CHIP_DISP->read_port_cfg_data(mvi, i)); |
dd4969a8 | 989 | |
20b09c29 | 990 | MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_SATA_SIG1); |
84fbd0ce | 991 | s[1] = cpu_to_le32(MVS_CHIP_DISP->read_port_cfg_data(mvi, i)); |
dd4969a8 | 992 | |
20b09c29 | 993 | MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_SATA_SIG0); |
84fbd0ce | 994 | s[0] = cpu_to_le32(MVS_CHIP_DISP->read_port_cfg_data(mvi, i)); |
20b09c29 | 995 | |
20b09c29 AY |
996 | if (((s[1] & 0x00FFFFFF) == 0x00EB1401) && (*(u8 *)&s[3] == 0x01)) |
997 | s[1] = 0x00EB1401 | (*((u8 *)&s[1] + 3) & 0x10); | |
dd4969a8 | 998 | |
f9da3be5 | 999 | return s; |
dd4969a8 JG |
1000 | } |
1001 | ||
1002 | static u32 mvs_is_sig_fis_received(u32 irq_status) | |
1003 | { | |
1004 | return irq_status & PHYEV_SIG_FIS; | |
1005 | } | |
1006 | ||
8882f081 XY |
1007 | static void mvs_sig_remove_timer(struct mvs_phy *phy) |
1008 | { | |
1009 | if (phy->timer.function) | |
1010 | del_timer(&phy->timer); | |
1011 | phy->timer.function = NULL; | |
1012 | } | |
1013 | ||
20b09c29 | 1014 | void mvs_update_phyinfo(struct mvs_info *mvi, int i, int get_st) |
dd4969a8 JG |
1015 | { |
1016 | struct mvs_phy *phy = &mvi->phy[i]; | |
20b09c29 | 1017 | struct sas_identify_frame *id; |
b5762948 | 1018 | |
20b09c29 | 1019 | id = (struct sas_identify_frame *)phy->frame_rcvd; |
b5762948 | 1020 | |
dd4969a8 | 1021 | if (get_st) { |
20b09c29 | 1022 | phy->irq_status = MVS_CHIP_DISP->read_port_irq_stat(mvi, i); |
dd4969a8 JG |
1023 | phy->phy_status = mvs_is_phy_ready(mvi, i); |
1024 | } | |
8f261aaf | 1025 | |
dd4969a8 | 1026 | if (phy->phy_status) { |
20b09c29 AY |
1027 | int oob_done = 0; |
1028 | struct asd_sas_phy *sas_phy = &mvi->phy[i].sas_phy; | |
b5762948 | 1029 | |
20b09c29 AY |
1030 | oob_done = MVS_CHIP_DISP->oob_done(mvi, i); |
1031 | ||
1032 | MVS_CHIP_DISP->fix_phy_info(mvi, i, id); | |
1033 | if (phy->phy_type & PORT_TYPE_SATA) { | |
1034 | phy->identify.target_port_protocols = SAS_PROTOCOL_STP; | |
1035 | if (mvs_is_sig_fis_received(phy->irq_status)) { | |
8882f081 | 1036 | mvs_sig_remove_timer(phy); |
20b09c29 AY |
1037 | phy->phy_attached = 1; |
1038 | phy->att_dev_sas_addr = | |
1039 | i + mvi->id * mvi->chip->n_phy; | |
1040 | if (oob_done) | |
1041 | sas_phy->oob_mode = SATA_OOB_MODE; | |
1042 | phy->frame_rcvd_size = | |
1043 | sizeof(struct dev_to_host_fis); | |
f9da3be5 | 1044 | mvs_get_d2h_reg(mvi, i, id); |
20b09c29 AY |
1045 | } else { |
1046 | u32 tmp; | |
1047 | dev_printk(KERN_DEBUG, mvi->dev, | |
1048 | "Phy%d : No sig fis\n", i); | |
1049 | tmp = MVS_CHIP_DISP->read_port_irq_mask(mvi, i); | |
1050 | MVS_CHIP_DISP->write_port_irq_mask(mvi, i, | |
1051 | tmp | PHYEV_SIG_FIS); | |
1052 | phy->phy_attached = 0; | |
1053 | phy->phy_type &= ~PORT_TYPE_SATA; | |
20b09c29 AY |
1054 | goto out_done; |
1055 | } | |
9dc9fd94 | 1056 | } else if (phy->phy_type & PORT_TYPE_SAS |
20b09c29 AY |
1057 | || phy->att_dev_info & PORT_SSP_INIT_MASK) { |
1058 | phy->phy_attached = 1; | |
dd4969a8 | 1059 | phy->identify.device_type = |
20b09c29 | 1060 | phy->att_dev_info & PORT_DEV_TYPE_MASK; |
b5762948 | 1061 | |
aa9f8328 | 1062 | if (phy->identify.device_type == SAS_END_DEVICE) |
dd4969a8 JG |
1063 | phy->identify.target_port_protocols = |
1064 | SAS_PROTOCOL_SSP; | |
aa9f8328 | 1065 | else if (phy->identify.device_type != SAS_PHY_UNUSED) |
dd4969a8 JG |
1066 | phy->identify.target_port_protocols = |
1067 | SAS_PROTOCOL_SMP; | |
20b09c29 | 1068 | if (oob_done) |
dd4969a8 JG |
1069 | sas_phy->oob_mode = SAS_OOB_MODE; |
1070 | phy->frame_rcvd_size = | |
1071 | sizeof(struct sas_identify_frame); | |
dd4969a8 | 1072 | } |
20b09c29 AY |
1073 | memcpy(sas_phy->attached_sas_addr, |
1074 | &phy->att_dev_sas_addr, SAS_ADDR_SIZE); | |
b5762948 | 1075 | |
20b09c29 AY |
1076 | if (MVS_CHIP_DISP->phy_work_around) |
1077 | MVS_CHIP_DISP->phy_work_around(mvi, i); | |
dd4969a8 | 1078 | } |
84fbd0ce | 1079 | mv_dprintk("phy %d attach dev info is %x\n", |
20b09c29 | 1080 | i + mvi->id * mvi->chip->n_phy, phy->att_dev_info); |
84fbd0ce | 1081 | mv_dprintk("phy %d attach sas addr is %llx\n", |
20b09c29 | 1082 | i + mvi->id * mvi->chip->n_phy, phy->att_dev_sas_addr); |
4e52fc0a | 1083 | out_done: |
dd4969a8 | 1084 | if (get_st) |
20b09c29 | 1085 | MVS_CHIP_DISP->write_port_irq_stat(mvi, i, phy->irq_status); |
b5762948 JG |
1086 | } |
1087 | ||
20b09c29 | 1088 | static void mvs_port_notify_formed(struct asd_sas_phy *sas_phy, int lock) |
8f261aaf | 1089 | { |
dd4969a8 | 1090 | struct sas_ha_struct *sas_ha = sas_phy->ha; |
20b09c29 | 1091 | struct mvs_info *mvi = NULL; int i = 0, hi; |
dd4969a8 | 1092 | struct mvs_phy *phy = sas_phy->lldd_phy; |
20b09c29 AY |
1093 | struct asd_sas_port *sas_port = sas_phy->port; |
1094 | struct mvs_port *port; | |
1095 | unsigned long flags = 0; | |
1096 | if (!sas_port) | |
1097 | return; | |
8f261aaf | 1098 | |
20b09c29 AY |
1099 | while (sas_ha->sas_phy[i]) { |
1100 | if (sas_ha->sas_phy[i] == sas_phy) | |
1101 | break; | |
1102 | i++; | |
1103 | } | |
1104 | hi = i/((struct mvs_prv_info *)sas_ha->lldd_ha)->n_phy; | |
1105 | mvi = ((struct mvs_prv_info *)sas_ha->lldd_ha)->mvi[hi]; | |
84fbd0ce XY |
1106 | if (i >= mvi->chip->n_phy) |
1107 | port = &mvi->port[i - mvi->chip->n_phy]; | |
20b09c29 | 1108 | else |
84fbd0ce | 1109 | port = &mvi->port[i]; |
20b09c29 AY |
1110 | if (lock) |
1111 | spin_lock_irqsave(&mvi->lock, flags); | |
dd4969a8 JG |
1112 | port->port_attached = 1; |
1113 | phy->port = port; | |
0b15fb1f | 1114 | sas_port->lldd_port = port; |
dd4969a8 JG |
1115 | if (phy->phy_type & PORT_TYPE_SAS) { |
1116 | port->wide_port_phymap = sas_port->phy_mask; | |
20b09c29 | 1117 | mv_printk("set wide port phy map %x\n", sas_port->phy_mask); |
dd4969a8 | 1118 | mvs_update_wideport(mvi, sas_phy->id); |
477f6d19 XY |
1119 | |
1120 | /* direct attached SAS device */ | |
1121 | if (phy->att_dev_info & PORT_SSP_TRGT_MASK) { | |
1122 | MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_PHY_STAT); | |
1123 | MVS_CHIP_DISP->write_port_cfg_data(mvi, i, 0x04); | |
1124 | } | |
8f261aaf | 1125 | } |
20b09c29 AY |
1126 | if (lock) |
1127 | spin_unlock_irqrestore(&mvi->lock, flags); | |
dd4969a8 JG |
1128 | } |
1129 | ||
20b09c29 | 1130 | static void mvs_port_notify_deformed(struct asd_sas_phy *sas_phy, int lock) |
dd4969a8 | 1131 | { |
9dc9fd94 S |
1132 | struct domain_device *dev; |
1133 | struct mvs_phy *phy = sas_phy->lldd_phy; | |
1134 | struct mvs_info *mvi = phy->mvi; | |
1135 | struct asd_sas_port *port = sas_phy->port; | |
1136 | int phy_no = 0; | |
1137 | ||
1138 | while (phy != &mvi->phy[phy_no]) { | |
1139 | phy_no++; | |
1140 | if (phy_no >= MVS_MAX_PHYS) | |
1141 | return; | |
1142 | } | |
1143 | list_for_each_entry(dev, &port->dev_list, dev_list_node) | |
84fbd0ce | 1144 | mvs_do_release_task(phy->mvi, phy_no, dev); |
9dc9fd94 | 1145 | |
dd4969a8 JG |
1146 | } |
1147 | ||
dd4969a8 | 1148 | |
20b09c29 AY |
1149 | void mvs_port_formed(struct asd_sas_phy *sas_phy) |
1150 | { | |
1151 | mvs_port_notify_formed(sas_phy, 1); | |
dd4969a8 JG |
1152 | } |
1153 | ||
20b09c29 | 1154 | void mvs_port_deformed(struct asd_sas_phy *sas_phy) |
dd4969a8 | 1155 | { |
20b09c29 AY |
1156 | mvs_port_notify_deformed(sas_phy, 1); |
1157 | } | |
8f261aaf | 1158 | |
20b09c29 AY |
1159 | struct mvs_device *mvs_alloc_dev(struct mvs_info *mvi) |
1160 | { | |
1161 | u32 dev; | |
1162 | for (dev = 0; dev < MVS_MAX_DEVICES; dev++) { | |
aa9f8328 | 1163 | if (mvi->devices[dev].dev_type == SAS_PHY_UNUSED) { |
20b09c29 AY |
1164 | mvi->devices[dev].device_id = dev; |
1165 | return &mvi->devices[dev]; | |
1166 | } | |
8f261aaf | 1167 | } |
8121ed42 | 1168 | |
20b09c29 AY |
1169 | if (dev == MVS_MAX_DEVICES) |
1170 | mv_printk("max support %d devices, ignore ..\n", | |
1171 | MVS_MAX_DEVICES); | |
1172 | ||
1173 | return NULL; | |
8f261aaf KW |
1174 | } |
1175 | ||
20b09c29 | 1176 | void mvs_free_dev(struct mvs_device *mvi_dev) |
b5762948 | 1177 | { |
20b09c29 AY |
1178 | u32 id = mvi_dev->device_id; |
1179 | memset(mvi_dev, 0, sizeof(*mvi_dev)); | |
1180 | mvi_dev->device_id = id; | |
aa9f8328 | 1181 | mvi_dev->dev_type = SAS_PHY_UNUSED; |
20b09c29 AY |
1182 | mvi_dev->dev_status = MVS_DEV_NORMAL; |
1183 | mvi_dev->taskfileset = MVS_ID_NOT_MAPPED; | |
1184 | } | |
b5762948 | 1185 | |
20b09c29 AY |
1186 | int mvs_dev_found_notify(struct domain_device *dev, int lock) |
1187 | { | |
1188 | unsigned long flags = 0; | |
1189 | int res = 0; | |
1190 | struct mvs_info *mvi = NULL; | |
1191 | struct domain_device *parent_dev = dev->parent; | |
1192 | struct mvs_device *mvi_device; | |
b5762948 | 1193 | |
20b09c29 | 1194 | mvi = mvs_find_dev_mvi(dev); |
b5762948 | 1195 | |
20b09c29 AY |
1196 | if (lock) |
1197 | spin_lock_irqsave(&mvi->lock, flags); | |
1198 | ||
1199 | mvi_device = mvs_alloc_dev(mvi); | |
1200 | if (!mvi_device) { | |
1201 | res = -1; | |
1202 | goto found_out; | |
b5762948 | 1203 | } |
f9da3be5 | 1204 | dev->lldd_dev = mvi_device; |
9dc9fd94 | 1205 | mvi_device->dev_status = MVS_DEV_NORMAL; |
20b09c29 | 1206 | mvi_device->dev_type = dev->dev_type; |
9870d9a2 | 1207 | mvi_device->mvi_info = mvi; |
84fbd0ce | 1208 | mvi_device->sas_device = dev; |
20b09c29 AY |
1209 | if (parent_dev && DEV_IS_EXPANDER(parent_dev->dev_type)) { |
1210 | int phy_id; | |
1211 | u8 phy_num = parent_dev->ex_dev.num_phys; | |
1212 | struct ex_phy *phy; | |
1213 | for (phy_id = 0; phy_id < phy_num; phy_id++) { | |
1214 | phy = &parent_dev->ex_dev.ex_phy[phy_id]; | |
1215 | if (SAS_ADDR(phy->attached_sas_addr) == | |
1216 | SAS_ADDR(dev->sas_addr)) { | |
1217 | mvi_device->attached_phy = phy_id; | |
1218 | break; | |
1219 | } | |
1220 | } | |
b5762948 | 1221 | |
20b09c29 AY |
1222 | if (phy_id == phy_num) { |
1223 | mv_printk("Error: no attached dev:%016llx" | |
1224 | "at ex:%016llx.\n", | |
1225 | SAS_ADDR(dev->sas_addr), | |
1226 | SAS_ADDR(parent_dev->sas_addr)); | |
1227 | res = -1; | |
1228 | } | |
dd4969a8 | 1229 | } |
b5762948 | 1230 | |
20b09c29 AY |
1231 | found_out: |
1232 | if (lock) | |
1233 | spin_unlock_irqrestore(&mvi->lock, flags); | |
1234 | return res; | |
1235 | } | |
b5762948 | 1236 | |
20b09c29 AY |
1237 | int mvs_dev_found(struct domain_device *dev) |
1238 | { | |
1239 | return mvs_dev_found_notify(dev, 1); | |
1240 | } | |
b5762948 | 1241 | |
9dc9fd94 | 1242 | void mvs_dev_gone_notify(struct domain_device *dev) |
20b09c29 AY |
1243 | { |
1244 | unsigned long flags = 0; | |
f9da3be5 | 1245 | struct mvs_device *mvi_dev = dev->lldd_dev; |
eaa015d2 | 1246 | struct mvs_info *mvi; |
b5762948 | 1247 | |
eaa015d2 | 1248 | if (!mvi_dev) { |
20b09c29 | 1249 | mv_dprintk("found dev has gone.\n"); |
eaa015d2 | 1250 | return; |
b5762948 | 1251 | } |
eaa015d2 RS |
1252 | |
1253 | mvi = mvi_dev->mvi_info; | |
1254 | ||
1255 | spin_lock_irqsave(&mvi->lock, flags); | |
1256 | ||
1257 | mv_dprintk("found dev[%d:%x] is gone.\n", | |
1258 | mvi_dev->device_id, mvi_dev->dev_type); | |
1259 | mvs_release_task(mvi, dev); | |
1260 | mvs_free_reg_set(mvi, mvi_dev); | |
1261 | mvs_free_dev(mvi_dev); | |
1262 | ||
20b09c29 | 1263 | dev->lldd_dev = NULL; |
84fbd0ce | 1264 | mvi_dev->sas_device = NULL; |
b5762948 | 1265 | |
9dc9fd94 | 1266 | spin_unlock_irqrestore(&mvi->lock, flags); |
b5762948 JG |
1267 | } |
1268 | ||
b5762948 | 1269 | |
20b09c29 AY |
1270 | void mvs_dev_gone(struct domain_device *dev) |
1271 | { | |
9dc9fd94 | 1272 | mvs_dev_gone_notify(dev); |
20b09c29 | 1273 | } |
b5762948 | 1274 | |
20b09c29 AY |
1275 | static void mvs_task_done(struct sas_task *task) |
1276 | { | |
f0bf750c | 1277 | if (!del_timer(&task->slow_task->timer)) |
20b09c29 | 1278 | return; |
f0bf750c | 1279 | complete(&task->slow_task->completion); |
b5762948 | 1280 | } |
b5762948 | 1281 | |
20b09c29 | 1282 | static void mvs_tmf_timedout(unsigned long data) |
b5762948 | 1283 | { |
20b09c29 | 1284 | struct sas_task *task = (struct sas_task *)data; |
8f261aaf | 1285 | |
20b09c29 | 1286 | task->task_state_flags |= SAS_TASK_STATE_ABORTED; |
f0bf750c | 1287 | complete(&task->slow_task->completion); |
20b09c29 | 1288 | } |
8f261aaf | 1289 | |
20b09c29 AY |
1290 | #define MVS_TASK_TIMEOUT 20 |
1291 | static int mvs_exec_internal_tmf_task(struct domain_device *dev, | |
1292 | void *parameter, u32 para_len, struct mvs_tmf_task *tmf) | |
1293 | { | |
1294 | int res, retry; | |
1295 | struct sas_task *task = NULL; | |
8f261aaf | 1296 | |
20b09c29 | 1297 | for (retry = 0; retry < 3; retry++) { |
f0bf750c | 1298 | task = sas_alloc_slow_task(GFP_KERNEL); |
20b09c29 AY |
1299 | if (!task) |
1300 | return -ENOMEM; | |
8f261aaf | 1301 | |
20b09c29 AY |
1302 | task->dev = dev; |
1303 | task->task_proto = dev->tproto; | |
8f261aaf | 1304 | |
20b09c29 AY |
1305 | memcpy(&task->ssp_task, parameter, para_len); |
1306 | task->task_done = mvs_task_done; | |
8f261aaf | 1307 | |
f0bf750c DW |
1308 | task->slow_task->timer.data = (unsigned long) task; |
1309 | task->slow_task->timer.function = mvs_tmf_timedout; | |
1310 | task->slow_task->timer.expires = jiffies + MVS_TASK_TIMEOUT*HZ; | |
1311 | add_timer(&task->slow_task->timer); | |
8f261aaf | 1312 | |
79855d17 | 1313 | res = mvs_task_exec(task, GFP_KERNEL, NULL, 1, tmf); |
8f261aaf | 1314 | |
20b09c29 | 1315 | if (res) { |
f0bf750c | 1316 | del_timer(&task->slow_task->timer); |
6d3be300 | 1317 | mv_printk("executing internal task failed:%d\n", res); |
20b09c29 AY |
1318 | goto ex_err; |
1319 | } | |
8f261aaf | 1320 | |
f0bf750c | 1321 | wait_for_completion(&task->slow_task->completion); |
84fbd0ce | 1322 | res = TMF_RESP_FUNC_FAILED; |
20b09c29 AY |
1323 | /* Even TMF timed out, return direct. */ |
1324 | if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) { | |
1325 | if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) { | |
1326 | mv_printk("TMF task[%x] timeout.\n", tmf->tmf); | |
1327 | goto ex_err; | |
1328 | } | |
1329 | } | |
8f261aaf | 1330 | |
20b09c29 | 1331 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
df64d3ca | 1332 | task->task_status.stat == SAM_STAT_GOOD) { |
20b09c29 AY |
1333 | res = TMF_RESP_FUNC_COMPLETE; |
1334 | break; | |
1335 | } | |
b5762948 | 1336 | |
20b09c29 AY |
1337 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
1338 | task->task_status.stat == SAS_DATA_UNDERRUN) { | |
1339 | /* no error, but return the number of bytes of | |
1340 | * underrun */ | |
1341 | res = task->task_status.residual; | |
1342 | break; | |
1343 | } | |
b5762948 | 1344 | |
20b09c29 AY |
1345 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
1346 | task->task_status.stat == SAS_DATA_OVERRUN) { | |
1347 | mv_dprintk("blocked task error.\n"); | |
1348 | res = -EMSGSIZE; | |
1349 | break; | |
1350 | } else { | |
1351 | mv_dprintk(" task to dev %016llx response: 0x%x " | |
1352 | "status 0x%x\n", | |
1353 | SAS_ADDR(dev->sas_addr), | |
1354 | task->task_status.resp, | |
1355 | task->task_status.stat); | |
4fcf812c | 1356 | sas_free_task(task); |
20b09c29 | 1357 | task = NULL; |
b5762948 | 1358 | |
dd4969a8 | 1359 | } |
dd4969a8 | 1360 | } |
20b09c29 AY |
1361 | ex_err: |
1362 | BUG_ON(retry == 3 && task != NULL); | |
4fcf812c | 1363 | sas_free_task(task); |
20b09c29 | 1364 | return res; |
dd4969a8 | 1365 | } |
b5762948 | 1366 | |
20b09c29 AY |
1367 | static int mvs_debug_issue_ssp_tmf(struct domain_device *dev, |
1368 | u8 *lun, struct mvs_tmf_task *tmf) | |
dd4969a8 | 1369 | { |
20b09c29 | 1370 | struct sas_ssp_task ssp_task; |
20b09c29 AY |
1371 | if (!(dev->tproto & SAS_PROTOCOL_SSP)) |
1372 | return TMF_RESP_FUNC_ESUPP; | |
b5762948 | 1373 | |
84fbd0ce | 1374 | memcpy(ssp_task.LUN, lun, 8); |
b5762948 | 1375 | |
20b09c29 AY |
1376 | return mvs_exec_internal_tmf_task(dev, &ssp_task, |
1377 | sizeof(ssp_task), tmf); | |
1378 | } | |
8f261aaf | 1379 | |
8f261aaf | 1380 | |
20b09c29 AY |
1381 | /* Standard mandates link reset for ATA (type 0) |
1382 | and hard reset for SSP (type 1) , only for RECOVERY */ | |
1383 | static int mvs_debug_I_T_nexus_reset(struct domain_device *dev) | |
1384 | { | |
1385 | int rc; | |
f41a0c44 | 1386 | struct sas_phy *phy = sas_get_local_phy(dev); |
aa9f8328 | 1387 | int reset_type = (dev->dev_type == SAS_SATA_DEV || |
20b09c29 AY |
1388 | (dev->tproto & SAS_PROTOCOL_STP)) ? 0 : 1; |
1389 | rc = sas_phy_reset(phy, reset_type); | |
f41a0c44 | 1390 | sas_put_local_phy(phy); |
20b09c29 AY |
1391 | msleep(2000); |
1392 | return rc; | |
1393 | } | |
8f261aaf | 1394 | |
20b09c29 AY |
1395 | /* mandatory SAM-3 */ |
1396 | int mvs_lu_reset(struct domain_device *dev, u8 *lun) | |
1397 | { | |
1398 | unsigned long flags; | |
84fbd0ce | 1399 | int rc = TMF_RESP_FUNC_FAILED; |
20b09c29 | 1400 | struct mvs_tmf_task tmf_task; |
f9da3be5 | 1401 | struct mvs_device * mvi_dev = dev->lldd_dev; |
9870d9a2 | 1402 | struct mvs_info *mvi = mvi_dev->mvi_info; |
20b09c29 AY |
1403 | |
1404 | tmf_task.tmf = TMF_LU_RESET; | |
1405 | mvi_dev->dev_status = MVS_DEV_EH; | |
1406 | rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task); | |
1407 | if (rc == TMF_RESP_FUNC_COMPLETE) { | |
20b09c29 | 1408 | spin_lock_irqsave(&mvi->lock, flags); |
84fbd0ce | 1409 | mvs_release_task(mvi, dev); |
20b09c29 | 1410 | spin_unlock_irqrestore(&mvi->lock, flags); |
dd4969a8 | 1411 | } |
20b09c29 AY |
1412 | /* If failed, fall-through I_T_Nexus reset */ |
1413 | mv_printk("%s for device[%x]:rc= %d\n", __func__, | |
1414 | mvi_dev->device_id, rc); | |
1415 | return rc; | |
1416 | } | |
8f261aaf | 1417 | |
20b09c29 AY |
1418 | int mvs_I_T_nexus_reset(struct domain_device *dev) |
1419 | { | |
1420 | unsigned long flags; | |
9dc9fd94 S |
1421 | int rc = TMF_RESP_FUNC_FAILED; |
1422 | struct mvs_device * mvi_dev = (struct mvs_device *)dev->lldd_dev; | |
9870d9a2 | 1423 | struct mvs_info *mvi = mvi_dev->mvi_info; |
20b09c29 AY |
1424 | |
1425 | if (mvi_dev->dev_status != MVS_DEV_EH) | |
1426 | return TMF_RESP_FUNC_COMPLETE; | |
84fbd0ce XY |
1427 | else |
1428 | mvi_dev->dev_status = MVS_DEV_NORMAL; | |
20b09c29 AY |
1429 | rc = mvs_debug_I_T_nexus_reset(dev); |
1430 | mv_printk("%s for device[%x]:rc= %d\n", | |
1431 | __func__, mvi_dev->device_id, rc); | |
1432 | ||
20b09c29 | 1433 | spin_lock_irqsave(&mvi->lock, flags); |
9dc9fd94 | 1434 | mvs_release_task(mvi, dev); |
20b09c29 AY |
1435 | spin_unlock_irqrestore(&mvi->lock, flags); |
1436 | ||
1437 | return rc; | |
1438 | } | |
1439 | /* optional SAM-3 */ | |
1440 | int mvs_query_task(struct sas_task *task) | |
1441 | { | |
1442 | u32 tag; | |
1443 | struct scsi_lun lun; | |
1444 | struct mvs_tmf_task tmf_task; | |
1445 | int rc = TMF_RESP_FUNC_FAILED; | |
1446 | ||
1447 | if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) { | |
1448 | struct scsi_cmnd * cmnd = (struct scsi_cmnd *)task->uldd_task; | |
1449 | struct domain_device *dev = task->dev; | |
9870d9a2 AY |
1450 | struct mvs_device *mvi_dev = (struct mvs_device *)dev->lldd_dev; |
1451 | struct mvs_info *mvi = mvi_dev->mvi_info; | |
20b09c29 AY |
1452 | |
1453 | int_to_scsilun(cmnd->device->lun, &lun); | |
1454 | rc = mvs_find_tag(mvi, task, &tag); | |
1455 | if (rc == 0) { | |
1456 | rc = TMF_RESP_FUNC_FAILED; | |
dd4969a8 | 1457 | return rc; |
20b09c29 | 1458 | } |
8f261aaf | 1459 | |
20b09c29 AY |
1460 | tmf_task.tmf = TMF_QUERY_TASK; |
1461 | tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag); | |
8f261aaf | 1462 | |
20b09c29 AY |
1463 | rc = mvs_debug_issue_ssp_tmf(dev, lun.scsi_lun, &tmf_task); |
1464 | switch (rc) { | |
1465 | /* The task is still in Lun, release it then */ | |
1466 | case TMF_RESP_FUNC_SUCC: | |
1467 | /* The task is not in Lun or failed, reset the phy */ | |
1468 | case TMF_RESP_FUNC_FAILED: | |
1469 | case TMF_RESP_FUNC_COMPLETE: | |
1470 | break; | |
1471 | } | |
dd4969a8 | 1472 | } |
20b09c29 AY |
1473 | mv_printk("%s:rc= %d\n", __func__, rc); |
1474 | return rc; | |
8f261aaf KW |
1475 | } |
1476 | ||
20b09c29 AY |
1477 | /* mandatory SAM-3, still need free task/slot info */ |
1478 | int mvs_abort_task(struct sas_task *task) | |
8f261aaf | 1479 | { |
20b09c29 AY |
1480 | struct scsi_lun lun; |
1481 | struct mvs_tmf_task tmf_task; | |
1482 | struct domain_device *dev = task->dev; | |
9870d9a2 | 1483 | struct mvs_device *mvi_dev = (struct mvs_device *)dev->lldd_dev; |
24ae163e | 1484 | struct mvs_info *mvi; |
20b09c29 AY |
1485 | int rc = TMF_RESP_FUNC_FAILED; |
1486 | unsigned long flags; | |
1487 | u32 tag; | |
9870d9a2 | 1488 | |
9dc9fd94 | 1489 | if (!mvi_dev) { |
84fbd0ce XY |
1490 | mv_printk("Device has removed\n"); |
1491 | return TMF_RESP_FUNC_FAILED; | |
9dc9fd94 S |
1492 | } |
1493 | ||
24ae163e JS |
1494 | mvi = mvi_dev->mvi_info; |
1495 | ||
20b09c29 AY |
1496 | spin_lock_irqsave(&task->task_state_lock, flags); |
1497 | if (task->task_state_flags & SAS_TASK_STATE_DONE) { | |
1498 | spin_unlock_irqrestore(&task->task_state_lock, flags); | |
1499 | rc = TMF_RESP_FUNC_COMPLETE; | |
1500 | goto out; | |
dd4969a8 | 1501 | } |
20b09c29 | 1502 | spin_unlock_irqrestore(&task->task_state_lock, flags); |
9dc9fd94 | 1503 | mvi_dev->dev_status = MVS_DEV_EH; |
20b09c29 AY |
1504 | if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) { |
1505 | struct scsi_cmnd * cmnd = (struct scsi_cmnd *)task->uldd_task; | |
1506 | ||
1507 | int_to_scsilun(cmnd->device->lun, &lun); | |
1508 | rc = mvs_find_tag(mvi, task, &tag); | |
1509 | if (rc == 0) { | |
1510 | mv_printk("No such tag in %s\n", __func__); | |
1511 | rc = TMF_RESP_FUNC_FAILED; | |
1512 | return rc; | |
1513 | } | |
8f261aaf | 1514 | |
20b09c29 AY |
1515 | tmf_task.tmf = TMF_ABORT_TASK; |
1516 | tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag); | |
8f261aaf | 1517 | |
20b09c29 | 1518 | rc = mvs_debug_issue_ssp_tmf(dev, lun.scsi_lun, &tmf_task); |
8f261aaf | 1519 | |
20b09c29 AY |
1520 | /* if successful, clear the task and callback forwards.*/ |
1521 | if (rc == TMF_RESP_FUNC_COMPLETE) { | |
1522 | u32 slot_no; | |
1523 | struct mvs_slot_info *slot; | |
8f261aaf | 1524 | |
20b09c29 | 1525 | if (task->lldd_task) { |
f9da3be5 | 1526 | slot = task->lldd_task; |
20b09c29 | 1527 | slot_no = (u32) (slot - mvi->slot_info); |
9dc9fd94 | 1528 | spin_lock_irqsave(&mvi->lock, flags); |
20b09c29 | 1529 | mvs_slot_complete(mvi, slot_no, 1); |
9dc9fd94 | 1530 | spin_unlock_irqrestore(&mvi->lock, flags); |
20b09c29 AY |
1531 | } |
1532 | } | |
9dc9fd94 | 1533 | |
20b09c29 AY |
1534 | } else if (task->task_proto & SAS_PROTOCOL_SATA || |
1535 | task->task_proto & SAS_PROTOCOL_STP) { | |
aa9f8328 | 1536 | if (SAS_SATA_DEV == dev->dev_type) { |
9dc9fd94 | 1537 | struct mvs_slot_info *slot = task->lldd_task; |
9dc9fd94 | 1538 | u32 slot_idx = (u32)(slot - mvi->slot_info); |
84fbd0ce | 1539 | mv_dprintk("mvs_abort_task() mvi=%p task=%p " |
9dc9fd94 S |
1540 | "slot=%p slot_idx=x%x\n", |
1541 | mvi, task, slot, slot_idx); | |
95ab0003 | 1542 | task->task_state_flags |= SAS_TASK_STATE_ABORTED; |
9dc9fd94 | 1543 | mvs_slot_task_free(mvi, task, slot, slot_idx); |
84fbd0ce XY |
1544 | rc = TMF_RESP_FUNC_COMPLETE; |
1545 | goto out; | |
9dc9fd94 | 1546 | } |
8f261aaf | 1547 | |
20b09c29 AY |
1548 | } |
1549 | out: | |
1550 | if (rc != TMF_RESP_FUNC_COMPLETE) | |
1551 | mv_printk("%s:rc= %d\n", __func__, rc); | |
dd4969a8 | 1552 | return rc; |
8f261aaf KW |
1553 | } |
1554 | ||
20b09c29 | 1555 | int mvs_abort_task_set(struct domain_device *dev, u8 *lun) |
8f261aaf | 1556 | { |
20b09c29 AY |
1557 | int rc = TMF_RESP_FUNC_FAILED; |
1558 | struct mvs_tmf_task tmf_task; | |
8f261aaf | 1559 | |
20b09c29 AY |
1560 | tmf_task.tmf = TMF_ABORT_TASK_SET; |
1561 | rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task); | |
dd4969a8 | 1562 | |
20b09c29 | 1563 | return rc; |
8f261aaf KW |
1564 | } |
1565 | ||
20b09c29 | 1566 | int mvs_clear_aca(struct domain_device *dev, u8 *lun) |
8f261aaf | 1567 | { |
20b09c29 AY |
1568 | int rc = TMF_RESP_FUNC_FAILED; |
1569 | struct mvs_tmf_task tmf_task; | |
8f261aaf | 1570 | |
20b09c29 AY |
1571 | tmf_task.tmf = TMF_CLEAR_ACA; |
1572 | rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task); | |
8f261aaf | 1573 | |
20b09c29 AY |
1574 | return rc; |
1575 | } | |
8f261aaf | 1576 | |
20b09c29 AY |
1577 | int mvs_clear_task_set(struct domain_device *dev, u8 *lun) |
1578 | { | |
1579 | int rc = TMF_RESP_FUNC_FAILED; | |
1580 | struct mvs_tmf_task tmf_task; | |
8f261aaf | 1581 | |
20b09c29 AY |
1582 | tmf_task.tmf = TMF_CLEAR_TASK_SET; |
1583 | rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task); | |
8f261aaf | 1584 | |
20b09c29 | 1585 | return rc; |
dd4969a8 | 1586 | } |
8f261aaf | 1587 | |
20b09c29 AY |
1588 | static int mvs_sata_done(struct mvs_info *mvi, struct sas_task *task, |
1589 | u32 slot_idx, int err) | |
dd4969a8 | 1590 | { |
f9da3be5 | 1591 | struct mvs_device *mvi_dev = task->dev->lldd_dev; |
20b09c29 AY |
1592 | struct task_status_struct *tstat = &task->task_status; |
1593 | struct ata_task_resp *resp = (struct ata_task_resp *)tstat->buf; | |
df64d3ca | 1594 | int stat = SAM_STAT_GOOD; |
e9ff91b6 | 1595 | |
8f261aaf | 1596 | |
20b09c29 AY |
1597 | resp->frame_len = sizeof(struct dev_to_host_fis); |
1598 | memcpy(&resp->ending_fis[0], | |
1599 | SATA_RECEIVED_D2H_FIS(mvi_dev->taskfileset), | |
1600 | sizeof(struct dev_to_host_fis)); | |
1601 | tstat->buf_valid_size = sizeof(*resp); | |
9dc9fd94 S |
1602 | if (unlikely(err)) { |
1603 | if (unlikely(err & CMD_ISS_STPD)) | |
1604 | stat = SAS_OPEN_REJECT; | |
1605 | else | |
1606 | stat = SAS_PROTO_RESPONSE; | |
1607 | } | |
1608 | ||
20b09c29 | 1609 | return stat; |
8f261aaf KW |
1610 | } |
1611 | ||
a4632aae XY |
1612 | void mvs_set_sense(u8 *buffer, int len, int d_sense, |
1613 | int key, int asc, int ascq) | |
1614 | { | |
1615 | memset(buffer, 0, len); | |
1616 | ||
1617 | if (d_sense) { | |
1618 | /* Descriptor format */ | |
1619 | if (len < 4) { | |
1620 | mv_printk("Length %d of sense buffer too small to " | |
1621 | "fit sense %x:%x:%x", len, key, asc, ascq); | |
1622 | } | |
1623 | ||
1624 | buffer[0] = 0x72; /* Response Code */ | |
1625 | if (len > 1) | |
1626 | buffer[1] = key; /* Sense Key */ | |
1627 | if (len > 2) | |
1628 | buffer[2] = asc; /* ASC */ | |
1629 | if (len > 3) | |
1630 | buffer[3] = ascq; /* ASCQ */ | |
1631 | } else { | |
1632 | if (len < 14) { | |
1633 | mv_printk("Length %d of sense buffer too small to " | |
1634 | "fit sense %x:%x:%x", len, key, asc, ascq); | |
1635 | } | |
1636 | ||
1637 | buffer[0] = 0x70; /* Response Code */ | |
1638 | if (len > 2) | |
1639 | buffer[2] = key; /* Sense Key */ | |
1640 | if (len > 7) | |
1641 | buffer[7] = 0x0a; /* Additional Sense Length */ | |
1642 | if (len > 12) | |
1643 | buffer[12] = asc; /* ASC */ | |
1644 | if (len > 13) | |
1645 | buffer[13] = ascq; /* ASCQ */ | |
1646 | } | |
1647 | ||
1648 | return; | |
1649 | } | |
1650 | ||
1651 | void mvs_fill_ssp_resp_iu(struct ssp_response_iu *iu, | |
1652 | u8 key, u8 asc, u8 asc_q) | |
1653 | { | |
1654 | iu->datapres = 2; | |
1655 | iu->response_data_len = 0; | |
1656 | iu->sense_data_len = 17; | |
1657 | iu->status = 02; | |
1658 | mvs_set_sense(iu->sense_data, 17, 0, | |
1659 | key, asc, asc_q); | |
1660 | } | |
1661 | ||
20b09c29 AY |
1662 | static int mvs_slot_err(struct mvs_info *mvi, struct sas_task *task, |
1663 | u32 slot_idx) | |
8f261aaf | 1664 | { |
20b09c29 AY |
1665 | struct mvs_slot_info *slot = &mvi->slot_info[slot_idx]; |
1666 | int stat; | |
84fbd0ce | 1667 | u32 err_dw0 = le32_to_cpu(*(u32 *)slot->response); |
a4632aae | 1668 | u32 err_dw1 = le32_to_cpu(*((u32 *)slot->response + 1)); |
20b09c29 AY |
1669 | u32 tfs = 0; |
1670 | enum mvs_port_type type = PORT_TYPE_SAS; | |
8f261aaf | 1671 | |
20b09c29 AY |
1672 | if (err_dw0 & CMD_ISS_STPD) |
1673 | MVS_CHIP_DISP->issue_stop(mvi, type, tfs); | |
1674 | ||
1675 | MVS_CHIP_DISP->command_active(mvi, slot_idx); | |
b5762948 | 1676 | |
df64d3ca | 1677 | stat = SAM_STAT_CHECK_CONDITION; |
dd4969a8 | 1678 | switch (task->task_proto) { |
dd4969a8 | 1679 | case SAS_PROTOCOL_SSP: |
a4632aae | 1680 | { |
20b09c29 | 1681 | stat = SAS_ABORTED_TASK; |
a4632aae XY |
1682 | if ((err_dw0 & NO_DEST) || err_dw1 & bit(31)) { |
1683 | struct ssp_response_iu *iu = slot->response + | |
1684 | sizeof(struct mvs_err_info); | |
1685 | mvs_fill_ssp_resp_iu(iu, NOT_READY, 0x04, 01); | |
1686 | sas_ssp_task_response(mvi->dev, task, iu); | |
1687 | stat = SAM_STAT_CHECK_CONDITION; | |
1688 | } | |
1689 | if (err_dw1 & bit(31)) | |
1690 | mv_printk("reuse same slot, retry command.\n"); | |
20b09c29 | 1691 | break; |
a4632aae | 1692 | } |
20b09c29 | 1693 | case SAS_PROTOCOL_SMP: |
df64d3ca | 1694 | stat = SAM_STAT_CHECK_CONDITION; |
dd4969a8 | 1695 | break; |
20b09c29 | 1696 | |
dd4969a8 JG |
1697 | case SAS_PROTOCOL_SATA: |
1698 | case SAS_PROTOCOL_STP: | |
20b09c29 AY |
1699 | case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: |
1700 | { | |
20b09c29 | 1701 | task->ata_task.use_ncq = 0; |
84fbd0ce | 1702 | stat = SAS_PROTO_RESPONSE; |
9dc9fd94 | 1703 | mvs_sata_done(mvi, task, slot_idx, err_dw0); |
dd4969a8 | 1704 | } |
20b09c29 | 1705 | break; |
dd4969a8 JG |
1706 | default: |
1707 | break; | |
1708 | } | |
1709 | ||
20b09c29 | 1710 | return stat; |
e9ff91b6 KW |
1711 | } |
1712 | ||
20b09c29 | 1713 | int mvs_slot_complete(struct mvs_info *mvi, u32 rx_desc, u32 flags) |
b5762948 | 1714 | { |
20b09c29 AY |
1715 | u32 slot_idx = rx_desc & RXQ_SLOT_MASK; |
1716 | struct mvs_slot_info *slot = &mvi->slot_info[slot_idx]; | |
1717 | struct sas_task *task = slot->task; | |
1718 | struct mvs_device *mvi_dev = NULL; | |
1719 | struct task_status_struct *tstat; | |
9dc9fd94 S |
1720 | struct domain_device *dev; |
1721 | u32 aborted; | |
20b09c29 | 1722 | |
20b09c29 AY |
1723 | void *to; |
1724 | enum exec_status sts; | |
1725 | ||
9dc9fd94 | 1726 | if (unlikely(!task || !task->lldd_task || !task->dev)) |
20b09c29 AY |
1727 | return -1; |
1728 | ||
1729 | tstat = &task->task_status; | |
9dc9fd94 S |
1730 | dev = task->dev; |
1731 | mvi_dev = dev->lldd_dev; | |
b5762948 | 1732 | |
20b09c29 AY |
1733 | spin_lock(&task->task_state_lock); |
1734 | task->task_state_flags &= | |
1735 | ~(SAS_TASK_STATE_PENDING | SAS_TASK_AT_INITIATOR); | |
1736 | task->task_state_flags |= SAS_TASK_STATE_DONE; | |
1737 | /* race condition*/ | |
1738 | aborted = task->task_state_flags & SAS_TASK_STATE_ABORTED; | |
1739 | spin_unlock(&task->task_state_lock); | |
1740 | ||
1741 | memset(tstat, 0, sizeof(*tstat)); | |
1742 | tstat->resp = SAS_TASK_COMPLETE; | |
1743 | ||
1744 | if (unlikely(aborted)) { | |
1745 | tstat->stat = SAS_ABORTED_TASK; | |
9dc9fd94 S |
1746 | if (mvi_dev && mvi_dev->running_req) |
1747 | mvi_dev->running_req--; | |
20b09c29 AY |
1748 | if (sas_protocol_ata(task->task_proto)) |
1749 | mvs_free_reg_set(mvi, mvi_dev); | |
1750 | ||
1751 | mvs_slot_task_free(mvi, task, slot, slot_idx); | |
1752 | return -1; | |
b5762948 JG |
1753 | } |
1754 | ||
e144f7ef | 1755 | /* when no device attaching, go ahead and complete by error handling*/ |
9dc9fd94 S |
1756 | if (unlikely(!mvi_dev || flags)) { |
1757 | if (!mvi_dev) | |
1758 | mv_dprintk("port has not device.\n"); | |
20b09c29 AY |
1759 | tstat->stat = SAS_PHY_DOWN; |
1760 | goto out; | |
1761 | } | |
b5762948 | 1762 | |
53a983c4 JB |
1763 | /* |
1764 | * error info record present; slot->response is 32 bit aligned but may | |
1765 | * not be 64 bit aligned, so check for zero in two 32 bit reads | |
1766 | */ | |
1767 | if (unlikely((rx_desc & RXQ_ERR) | |
1768 | && (*((u32 *)slot->response) | |
1769 | || *(((u32 *)slot->response) + 1)))) { | |
84fbd0ce XY |
1770 | mv_dprintk("port %d slot %d rx_desc %X has error info" |
1771 | "%016llX.\n", slot->port->sas_port.id, slot_idx, | |
53a983c4 | 1772 | rx_desc, get_unaligned_le64(slot->response)); |
20b09c29 | 1773 | tstat->stat = mvs_slot_err(mvi, task, slot_idx); |
9dc9fd94 | 1774 | tstat->resp = SAS_TASK_COMPLETE; |
20b09c29 | 1775 | goto out; |
b5762948 JG |
1776 | } |
1777 | ||
20b09c29 AY |
1778 | switch (task->task_proto) { |
1779 | case SAS_PROTOCOL_SSP: | |
1780 | /* hw says status == 0, datapres == 0 */ | |
1781 | if (rx_desc & RXQ_GOOD) { | |
df64d3ca | 1782 | tstat->stat = SAM_STAT_GOOD; |
20b09c29 AY |
1783 | tstat->resp = SAS_TASK_COMPLETE; |
1784 | } | |
1785 | /* response frame present */ | |
1786 | else if (rx_desc & RXQ_RSP) { | |
1787 | struct ssp_response_iu *iu = slot->response + | |
1788 | sizeof(struct mvs_err_info); | |
1789 | sas_ssp_task_response(mvi->dev, task, iu); | |
1790 | } else | |
df64d3ca | 1791 | tstat->stat = SAM_STAT_CHECK_CONDITION; |
20b09c29 | 1792 | break; |
b5762948 | 1793 | |
20b09c29 AY |
1794 | case SAS_PROTOCOL_SMP: { |
1795 | struct scatterlist *sg_resp = &task->smp_task.smp_resp; | |
df64d3ca | 1796 | tstat->stat = SAM_STAT_GOOD; |
77dfce07 | 1797 | to = kmap_atomic(sg_page(sg_resp)); |
20b09c29 AY |
1798 | memcpy(to + sg_resp->offset, |
1799 | slot->response + sizeof(struct mvs_err_info), | |
1800 | sg_dma_len(sg_resp)); | |
77dfce07 | 1801 | kunmap_atomic(to); |
20b09c29 AY |
1802 | break; |
1803 | } | |
8f261aaf | 1804 | |
20b09c29 AY |
1805 | case SAS_PROTOCOL_SATA: |
1806 | case SAS_PROTOCOL_STP: | |
1807 | case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: { | |
1808 | tstat->stat = mvs_sata_done(mvi, task, slot_idx, 0); | |
1809 | break; | |
1810 | } | |
b5762948 | 1811 | |
20b09c29 | 1812 | default: |
df64d3ca | 1813 | tstat->stat = SAM_STAT_CHECK_CONDITION; |
20b09c29 AY |
1814 | break; |
1815 | } | |
9dc9fd94 S |
1816 | if (!slot->port->port_attached) { |
1817 | mv_dprintk("port %d has removed.\n", slot->port->sas_port.id); | |
1818 | tstat->stat = SAS_PHY_DOWN; | |
1819 | } | |
1820 | ||
b5762948 | 1821 | |
20b09c29 | 1822 | out: |
9dc9fd94 S |
1823 | if (mvi_dev && mvi_dev->running_req) { |
1824 | mvi_dev->running_req--; | |
1825 | if (sas_protocol_ata(task->task_proto) && !mvi_dev->running_req) | |
0f980a87 AY |
1826 | mvs_free_reg_set(mvi, mvi_dev); |
1827 | } | |
20b09c29 AY |
1828 | mvs_slot_task_free(mvi, task, slot, slot_idx); |
1829 | sts = tstat->stat; | |
8f261aaf | 1830 | |
20b09c29 AY |
1831 | spin_unlock(&mvi->lock); |
1832 | if (task->task_done) | |
1833 | task->task_done(task); | |
84fbd0ce | 1834 | |
20b09c29 | 1835 | spin_lock(&mvi->lock); |
b5762948 | 1836 | |
20b09c29 AY |
1837 | return sts; |
1838 | } | |
b5762948 | 1839 | |
9dc9fd94 | 1840 | void mvs_do_release_task(struct mvs_info *mvi, |
20b09c29 AY |
1841 | int phy_no, struct domain_device *dev) |
1842 | { | |
9dc9fd94 | 1843 | u32 slot_idx; |
20b09c29 AY |
1844 | struct mvs_phy *phy; |
1845 | struct mvs_port *port; | |
1846 | struct mvs_slot_info *slot, *slot2; | |
b5762948 | 1847 | |
20b09c29 AY |
1848 | phy = &mvi->phy[phy_no]; |
1849 | port = phy->port; | |
1850 | if (!port) | |
1851 | return; | |
9dc9fd94 S |
1852 | /* clean cmpl queue in case request is already finished */ |
1853 | mvs_int_rx(mvi, false); | |
1854 | ||
1855 | ||
b5762948 | 1856 | |
20b09c29 AY |
1857 | list_for_each_entry_safe(slot, slot2, &port->list, entry) { |
1858 | struct sas_task *task; | |
1859 | slot_idx = (u32) (slot - mvi->slot_info); | |
1860 | task = slot->task; | |
b5762948 | 1861 | |
20b09c29 AY |
1862 | if (dev && task->dev != dev) |
1863 | continue; | |
8f261aaf | 1864 | |
20b09c29 AY |
1865 | mv_printk("Release slot [%x] tag[%x], task [%p]:\n", |
1866 | slot_idx, slot->slot_tag, task); | |
9dc9fd94 | 1867 | MVS_CHIP_DISP->command_active(mvi, slot_idx); |
b5762948 | 1868 | |
20b09c29 | 1869 | mvs_slot_complete(mvi, slot_idx, 1); |
b5762948 | 1870 | } |
20b09c29 | 1871 | } |
b5762948 | 1872 | |
9dc9fd94 S |
1873 | void mvs_release_task(struct mvs_info *mvi, |
1874 | struct domain_device *dev) | |
1875 | { | |
1876 | int i, phyno[WIDE_PORT_MAX_PHY], num; | |
9dc9fd94 S |
1877 | num = mvs_find_dev_phyno(dev, phyno); |
1878 | for (i = 0; i < num; i++) | |
1879 | mvs_do_release_task(mvi, phyno[i], dev); | |
1880 | } | |
1881 | ||
20b09c29 AY |
1882 | static void mvs_phy_disconnected(struct mvs_phy *phy) |
1883 | { | |
1884 | phy->phy_attached = 0; | |
1885 | phy->att_dev_info = 0; | |
1886 | phy->att_dev_sas_addr = 0; | |
1887 | } | |
1888 | ||
1889 | static void mvs_work_queue(struct work_struct *work) | |
1890 | { | |
1891 | struct delayed_work *dw = container_of(work, struct delayed_work, work); | |
1892 | struct mvs_wq *mwq = container_of(dw, struct mvs_wq, work_q); | |
1893 | struct mvs_info *mvi = mwq->mvi; | |
1894 | unsigned long flags; | |
a4632aae XY |
1895 | u32 phy_no = (unsigned long) mwq->data; |
1896 | struct sas_ha_struct *sas_ha = mvi->sas; | |
1897 | struct mvs_phy *phy = &mvi->phy[phy_no]; | |
1898 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
b5762948 | 1899 | |
20b09c29 AY |
1900 | spin_lock_irqsave(&mvi->lock, flags); |
1901 | if (mwq->handler & PHY_PLUG_EVENT) { | |
20b09c29 AY |
1902 | |
1903 | if (phy->phy_event & PHY_PLUG_OUT) { | |
1904 | u32 tmp; | |
1905 | struct sas_identify_frame *id; | |
1906 | id = (struct sas_identify_frame *)phy->frame_rcvd; | |
1907 | tmp = MVS_CHIP_DISP->read_phy_ctl(mvi, phy_no); | |
1908 | phy->phy_event &= ~PHY_PLUG_OUT; | |
1909 | if (!(tmp & PHY_READY_MASK)) { | |
1910 | sas_phy_disconnected(sas_phy); | |
1911 | mvs_phy_disconnected(phy); | |
1912 | sas_ha->notify_phy_event(sas_phy, | |
1913 | PHYE_LOSS_OF_SIGNAL); | |
1914 | mv_dprintk("phy%d Removed Device\n", phy_no); | |
1915 | } else { | |
1916 | MVS_CHIP_DISP->detect_porttype(mvi, phy_no); | |
1917 | mvs_update_phyinfo(mvi, phy_no, 1); | |
1918 | mvs_bytes_dmaed(mvi, phy_no); | |
1919 | mvs_port_notify_formed(sas_phy, 0); | |
1920 | mv_dprintk("phy%d Attached Device\n", phy_no); | |
1921 | } | |
1922 | } | |
a4632aae XY |
1923 | } else if (mwq->handler & EXP_BRCT_CHG) { |
1924 | phy->phy_event &= ~EXP_BRCT_CHG; | |
1925 | sas_ha->notify_port_event(sas_phy, | |
1926 | PORTE_BROADCAST_RCVD); | |
1927 | mv_dprintk("phy%d Got Broadcast Change\n", phy_no); | |
20b09c29 AY |
1928 | } |
1929 | list_del(&mwq->entry); | |
1930 | spin_unlock_irqrestore(&mvi->lock, flags); | |
1931 | kfree(mwq); | |
1932 | } | |
8f261aaf | 1933 | |
20b09c29 AY |
1934 | static int mvs_handle_event(struct mvs_info *mvi, void *data, int handler) |
1935 | { | |
1936 | struct mvs_wq *mwq; | |
1937 | int ret = 0; | |
1938 | ||
1939 | mwq = kmalloc(sizeof(struct mvs_wq), GFP_ATOMIC); | |
1940 | if (mwq) { | |
1941 | mwq->mvi = mvi; | |
1942 | mwq->data = data; | |
1943 | mwq->handler = handler; | |
1944 | MV_INIT_DELAYED_WORK(&mwq->work_q, mvs_work_queue, mwq); | |
1945 | list_add_tail(&mwq->entry, &mvi->wq_list); | |
1946 | schedule_delayed_work(&mwq->work_q, HZ * 2); | |
1947 | } else | |
1948 | ret = -ENOMEM; | |
1949 | ||
1950 | return ret; | |
1951 | } | |
b5762948 | 1952 | |
20b09c29 AY |
1953 | static void mvs_sig_time_out(unsigned long tphy) |
1954 | { | |
1955 | struct mvs_phy *phy = (struct mvs_phy *)tphy; | |
1956 | struct mvs_info *mvi = phy->mvi; | |
1957 | u8 phy_no; | |
1958 | ||
1959 | for (phy_no = 0; phy_no < mvi->chip->n_phy; phy_no++) { | |
1960 | if (&mvi->phy[phy_no] == phy) { | |
1961 | mv_dprintk("Get signature time out, reset phy %d\n", | |
1962 | phy_no+mvi->id*mvi->chip->n_phy); | |
a4632aae | 1963 | MVS_CHIP_DISP->phy_reset(mvi, phy_no, MVS_HARD_RESET); |
20b09c29 | 1964 | } |
b5762948 | 1965 | } |
20b09c29 | 1966 | } |
b5762948 | 1967 | |
20b09c29 AY |
1968 | void mvs_int_port(struct mvs_info *mvi, int phy_no, u32 events) |
1969 | { | |
1970 | u32 tmp; | |
20b09c29 | 1971 | struct mvs_phy *phy = &mvi->phy[phy_no]; |
8f261aaf | 1972 | |
20b09c29 | 1973 | phy->irq_status = MVS_CHIP_DISP->read_port_irq_stat(mvi, phy_no); |
84fbd0ce XY |
1974 | MVS_CHIP_DISP->write_port_irq_stat(mvi, phy_no, phy->irq_status); |
1975 | mv_dprintk("phy %d ctrl sts=0x%08X.\n", phy_no+mvi->id*mvi->chip->n_phy, | |
20b09c29 | 1976 | MVS_CHIP_DISP->read_phy_ctl(mvi, phy_no)); |
84fbd0ce | 1977 | mv_dprintk("phy %d irq sts = 0x%08X\n", phy_no+mvi->id*mvi->chip->n_phy, |
20b09c29 | 1978 | phy->irq_status); |
8f261aaf | 1979 | |
20b09c29 AY |
1980 | /* |
1981 | * events is port event now , | |
1982 | * we need check the interrupt status which belongs to per port. | |
1983 | */ | |
b5762948 | 1984 | |
9dc9fd94 | 1985 | if (phy->irq_status & PHYEV_DCDR_ERR) { |
84fbd0ce | 1986 | mv_dprintk("phy %d STP decoding error.\n", |
9dc9fd94 S |
1987 | phy_no + mvi->id*mvi->chip->n_phy); |
1988 | } | |
20b09c29 AY |
1989 | |
1990 | if (phy->irq_status & PHYEV_POOF) { | |
84fbd0ce | 1991 | mdelay(500); |
20b09c29 AY |
1992 | if (!(phy->phy_event & PHY_PLUG_OUT)) { |
1993 | int dev_sata = phy->phy_type & PORT_TYPE_SATA; | |
1994 | int ready; | |
9dc9fd94 | 1995 | mvs_do_release_task(mvi, phy_no, NULL); |
20b09c29 | 1996 | phy->phy_event |= PHY_PLUG_OUT; |
9dc9fd94 | 1997 | MVS_CHIP_DISP->clear_srs_irq(mvi, 0, 1); |
20b09c29 AY |
1998 | mvs_handle_event(mvi, |
1999 | (void *)(unsigned long)phy_no, | |
2000 | PHY_PLUG_EVENT); | |
2001 | ready = mvs_is_phy_ready(mvi, phy_no); | |
20b09c29 AY |
2002 | if (ready || dev_sata) { |
2003 | if (MVS_CHIP_DISP->stp_reset) | |
2004 | MVS_CHIP_DISP->stp_reset(mvi, | |
2005 | phy_no); | |
2006 | else | |
2007 | MVS_CHIP_DISP->phy_reset(mvi, | |
a4632aae | 2008 | phy_no, MVS_SOFT_RESET); |
20b09c29 AY |
2009 | return; |
2010 | } | |
2011 | } | |
2012 | } | |
b5762948 | 2013 | |
20b09c29 AY |
2014 | if (phy->irq_status & PHYEV_COMWAKE) { |
2015 | tmp = MVS_CHIP_DISP->read_port_irq_mask(mvi, phy_no); | |
2016 | MVS_CHIP_DISP->write_port_irq_mask(mvi, phy_no, | |
2017 | tmp | PHYEV_SIG_FIS); | |
2018 | if (phy->timer.function == NULL) { | |
2019 | phy->timer.data = (unsigned long)phy; | |
2020 | phy->timer.function = mvs_sig_time_out; | |
84fbd0ce | 2021 | phy->timer.expires = jiffies + 5*HZ; |
20b09c29 AY |
2022 | add_timer(&phy->timer); |
2023 | } | |
2024 | } | |
2025 | if (phy->irq_status & (PHYEV_SIG_FIS | PHYEV_ID_DONE)) { | |
2026 | phy->phy_status = mvs_is_phy_ready(mvi, phy_no); | |
20b09c29 AY |
2027 | mv_dprintk("notify plug in on phy[%d]\n", phy_no); |
2028 | if (phy->phy_status) { | |
2029 | mdelay(10); | |
2030 | MVS_CHIP_DISP->detect_porttype(mvi, phy_no); | |
2031 | if (phy->phy_type & PORT_TYPE_SATA) { | |
2032 | tmp = MVS_CHIP_DISP->read_port_irq_mask( | |
2033 | mvi, phy_no); | |
2034 | tmp &= ~PHYEV_SIG_FIS; | |
2035 | MVS_CHIP_DISP->write_port_irq_mask(mvi, | |
2036 | phy_no, tmp); | |
2037 | } | |
2038 | mvs_update_phyinfo(mvi, phy_no, 0); | |
9dc9fd94 | 2039 | if (phy->phy_type & PORT_TYPE_SAS) { |
a4632aae | 2040 | MVS_CHIP_DISP->phy_reset(mvi, phy_no, MVS_PHY_TUNE); |
9dc9fd94 S |
2041 | mdelay(10); |
2042 | } | |
2043 | ||
20b09c29 AY |
2044 | mvs_bytes_dmaed(mvi, phy_no); |
2045 | /* whether driver is going to handle hot plug */ | |
2046 | if (phy->phy_event & PHY_PLUG_OUT) { | |
a4632aae | 2047 | mvs_port_notify_formed(&phy->sas_phy, 0); |
20b09c29 AY |
2048 | phy->phy_event &= ~PHY_PLUG_OUT; |
2049 | } | |
2050 | } else { | |
2051 | mv_dprintk("plugin interrupt but phy%d is gone\n", | |
2052 | phy_no + mvi->id*mvi->chip->n_phy); | |
2053 | } | |
2054 | } else if (phy->irq_status & PHYEV_BROAD_CH) { | |
84fbd0ce | 2055 | mv_dprintk("phy %d broadcast change.\n", |
20b09c29 | 2056 | phy_no + mvi->id*mvi->chip->n_phy); |
a4632aae XY |
2057 | mvs_handle_event(mvi, (void *)(unsigned long)phy_no, |
2058 | EXP_BRCT_CHG); | |
20b09c29 | 2059 | } |
b5762948 JG |
2060 | } |
2061 | ||
20b09c29 | 2062 | int mvs_int_rx(struct mvs_info *mvi, bool self_clear) |
b5762948 | 2063 | { |
20b09c29 AY |
2064 | u32 rx_prod_idx, rx_desc; |
2065 | bool attn = false; | |
b5762948 | 2066 | |
20b09c29 AY |
2067 | /* the first dword in the RX ring is special: it contains |
2068 | * a mirror of the hardware's RX producer index, so that | |
2069 | * we don't have to stall the CPU reading that register. | |
2070 | * The actual RX ring is offset by one dword, due to this. | |
2071 | */ | |
2072 | rx_prod_idx = mvi->rx_cons; | |
2073 | mvi->rx_cons = le32_to_cpu(mvi->rx[0]); | |
2074 | if (mvi->rx_cons == 0xfff) /* h/w hasn't touched RX ring yet */ | |
2075 | return 0; | |
b5762948 | 2076 | |
20b09c29 AY |
2077 | /* The CMPL_Q may come late, read from register and try again |
2078 | * note: if coalescing is enabled, | |
2079 | * it will need to read from register every time for sure | |
2080 | */ | |
2081 | if (unlikely(mvi->rx_cons == rx_prod_idx)) | |
2082 | mvi->rx_cons = MVS_CHIP_DISP->rx_update(mvi) & RX_RING_SZ_MASK; | |
2083 | ||
2084 | if (mvi->rx_cons == rx_prod_idx) | |
2085 | return 0; | |
2086 | ||
2087 | while (mvi->rx_cons != rx_prod_idx) { | |
2088 | /* increment our internal RX consumer pointer */ | |
2089 | rx_prod_idx = (rx_prod_idx + 1) & (MVS_RX_RING_SZ - 1); | |
2090 | rx_desc = le32_to_cpu(mvi->rx[rx_prod_idx + 1]); | |
2091 | ||
2092 | if (likely(rx_desc & RXQ_DONE)) | |
2093 | mvs_slot_complete(mvi, rx_desc, 0); | |
2094 | if (rx_desc & RXQ_ATTN) { | |
2095 | attn = true; | |
2096 | } else if (rx_desc & RXQ_ERR) { | |
2097 | if (!(rx_desc & RXQ_DONE)) | |
2098 | mvs_slot_complete(mvi, rx_desc, 0); | |
2099 | } else if (rx_desc & RXQ_SLOT_RESET) { | |
2100 | mvs_slot_free(mvi, rx_desc); | |
2101 | } | |
2102 | } | |
2103 | ||
2104 | if (attn && self_clear) | |
2105 | MVS_CHIP_DISP->int_full(mvi); | |
2106 | return 0; | |
b5762948 JG |
2107 | } |
2108 |