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 JG |
318 | int elem, rc, i; |
319 | struct sas_task *task = tei->task; | |
320 | struct mvs_cmd_hdr *hdr = tei->hdr; | |
20b09c29 AY |
321 | struct domain_device *dev = task->dev; |
322 | struct asd_sas_port *sas_port = dev->port; | |
dd4969a8 JG |
323 | struct scatterlist *sg_req, *sg_resp; |
324 | u32 req_len, resp_len, tag = tei->tag; | |
325 | void *buf_tmp; | |
326 | u8 *buf_oaf; | |
327 | dma_addr_t buf_tmp_dma; | |
20b09c29 | 328 | void *buf_prd; |
dd4969a8 | 329 | struct mvs_slot_info *slot = &mvi->slot_info[tag]; |
dd4969a8 | 330 | u32 flags = (tei->n_elem << MCH_PRD_LEN_SHIFT); |
b89e8f53 | 331 | |
dd4969a8 JG |
332 | /* |
333 | * DMA-map SMP request, response buffers | |
334 | */ | |
335 | sg_req = &task->smp_task.smp_req; | |
20b09c29 | 336 | elem = dma_map_sg(mvi->dev, sg_req, 1, PCI_DMA_TODEVICE); |
dd4969a8 JG |
337 | if (!elem) |
338 | return -ENOMEM; | |
339 | req_len = sg_dma_len(sg_req); | |
b5762948 | 340 | |
dd4969a8 | 341 | sg_resp = &task->smp_task.smp_resp; |
20b09c29 | 342 | elem = dma_map_sg(mvi->dev, sg_resp, 1, PCI_DMA_FROMDEVICE); |
dd4969a8 JG |
343 | if (!elem) { |
344 | rc = -ENOMEM; | |
345 | goto err_out; | |
346 | } | |
20b09c29 | 347 | resp_len = SB_RFB_MAX; |
b5762948 | 348 | |
dd4969a8 JG |
349 | /* must be in dwords */ |
350 | if ((req_len & 0x3) || (resp_len & 0x3)) { | |
351 | rc = -EINVAL; | |
352 | goto err_out_2; | |
b5762948 JG |
353 | } |
354 | ||
dd4969a8 JG |
355 | /* |
356 | * arrange MVS_SLOT_BUF_SZ-sized DMA buffer according to our needs | |
357 | */ | |
b5762948 | 358 | |
20b09c29 | 359 | /* region 1: command table area (MVS_SSP_CMD_SZ bytes) ***** */ |
dd4969a8 JG |
360 | buf_tmp = slot->buf; |
361 | buf_tmp_dma = slot->buf_dma; | |
b5762948 | 362 | |
dd4969a8 | 363 | hdr->cmd_tbl = cpu_to_le64(sg_dma_address(sg_req)); |
b5762948 | 364 | |
dd4969a8 JG |
365 | /* region 2: open address frame area (MVS_OAF_SZ bytes) ********* */ |
366 | buf_oaf = buf_tmp; | |
367 | hdr->open_frame = cpu_to_le64(buf_tmp_dma); | |
b5762948 | 368 | |
dd4969a8 JG |
369 | buf_tmp += MVS_OAF_SZ; |
370 | buf_tmp_dma += MVS_OAF_SZ; | |
b5762948 | 371 | |
20b09c29 | 372 | /* region 3: PRD table *********************************** */ |
dd4969a8 JG |
373 | buf_prd = buf_tmp; |
374 | if (tei->n_elem) | |
375 | hdr->prd_tbl = cpu_to_le64(buf_tmp_dma); | |
376 | else | |
377 | hdr->prd_tbl = 0; | |
b5762948 | 378 | |
20b09c29 | 379 | i = MVS_CHIP_DISP->prd_size() * tei->n_elem; |
dd4969a8 JG |
380 | buf_tmp += i; |
381 | buf_tmp_dma += i; | |
b5762948 | 382 | |
dd4969a8 JG |
383 | /* region 4: status buffer (larger the PRD, smaller this buf) ****** */ |
384 | slot->response = buf_tmp; | |
385 | hdr->status_buf = cpu_to_le64(buf_tmp_dma); | |
20b09c29 AY |
386 | if (mvi->flags & MVF_FLAG_SOC) |
387 | hdr->reserved[0] = 0; | |
b5762948 | 388 | |
dd4969a8 JG |
389 | /* |
390 | * Fill in TX ring and command slot header | |
391 | */ | |
392 | slot->tx = mvi->tx_prod; | |
393 | mvi->tx[mvi->tx_prod] = cpu_to_le32((TXQ_CMD_SMP << TXQ_CMD_SHIFT) | | |
394 | TXQ_MODE_I | tag | | |
395 | (sas_port->phy_mask << TXQ_PHY_SHIFT)); | |
b5762948 | 396 | |
dd4969a8 JG |
397 | hdr->flags |= flags; |
398 | hdr->lens = cpu_to_le32(((resp_len / 4) << 16) | ((req_len - 4) / 4)); | |
399 | hdr->tags = cpu_to_le32(tag); | |
400 | hdr->data_len = 0; | |
b5762948 | 401 | |
dd4969a8 | 402 | /* generate open address frame hdr (first 12 bytes) */ |
20b09c29 AY |
403 | /* initiator, SMP, ftype 1h */ |
404 | buf_oaf[0] = (1 << 7) | (PROTOCOL_SMP << 4) | 0x01; | |
6ceae7c6 | 405 | buf_oaf[1] = min(sas_port->linkrate, dev->linkrate) & 0xf; |
dd4969a8 | 406 | *(u16 *)(buf_oaf + 2) = 0xFFFF; /* SAS SPEC */ |
20b09c29 | 407 | memcpy(buf_oaf + 4, dev->sas_addr, SAS_ADDR_SIZE); |
dd4969a8 JG |
408 | |
409 | /* fill in PRD (scatter/gather) table, if any */ | |
20b09c29 | 410 | MVS_CHIP_DISP->make_prd(task->scatter, tei->n_elem, buf_prd); |
b5762948 JG |
411 | |
412 | return 0; | |
413 | ||
dd4969a8 | 414 | err_out_2: |
20b09c29 | 415 | dma_unmap_sg(mvi->dev, &tei->task->smp_task.smp_resp, 1, |
dd4969a8 | 416 | PCI_DMA_FROMDEVICE); |
b5762948 | 417 | err_out: |
20b09c29 | 418 | dma_unmap_sg(mvi->dev, &tei->task->smp_task.smp_req, 1, |
dd4969a8 | 419 | PCI_DMA_TODEVICE); |
8f261aaf | 420 | return rc; |
8f261aaf KW |
421 | } |
422 | ||
dd4969a8 | 423 | static u32 mvs_get_ncq_tag(struct sas_task *task, u32 *tag) |
8f261aaf | 424 | { |
dd4969a8 | 425 | struct ata_queued_cmd *qc = task->uldd_task; |
8f261aaf | 426 | |
dd4969a8 JG |
427 | if (qc) { |
428 | if (qc->tf.command == ATA_CMD_FPDMA_WRITE || | |
429 | qc->tf.command == ATA_CMD_FPDMA_READ) { | |
430 | *tag = qc->tag; | |
431 | return 1; | |
432 | } | |
8f261aaf | 433 | } |
8f261aaf | 434 | |
dd4969a8 | 435 | return 0; |
8f261aaf KW |
436 | } |
437 | ||
dd4969a8 JG |
438 | static int mvs_task_prep_ata(struct mvs_info *mvi, |
439 | struct mvs_task_exec_info *tei) | |
b5762948 JG |
440 | { |
441 | struct sas_task *task = tei->task; | |
442 | struct domain_device *dev = task->dev; | |
f9da3be5 | 443 | struct mvs_device *mvi_dev = dev->lldd_dev; |
b5762948 JG |
444 | struct mvs_cmd_hdr *hdr = tei->hdr; |
445 | struct asd_sas_port *sas_port = dev->port; | |
8f261aaf | 446 | struct mvs_slot_info *slot; |
20b09c29 AY |
447 | void *buf_prd; |
448 | u32 tag = tei->tag, hdr_tag; | |
449 | u32 flags, del_q; | |
b5762948 JG |
450 | void *buf_tmp; |
451 | u8 *buf_cmd, *buf_oaf; | |
452 | dma_addr_t buf_tmp_dma; | |
8f261aaf KW |
453 | u32 i, req_len, resp_len; |
454 | const u32 max_resp_len = SB_RFB_MAX; | |
455 | ||
20b09c29 AY |
456 | if (mvs_assign_reg_set(mvi, mvi_dev) == MVS_ID_NOT_MAPPED) { |
457 | mv_dprintk("Have not enough regiset for dev %d.\n", | |
458 | mvi_dev->device_id); | |
8f261aaf | 459 | return -EBUSY; |
20b09c29 | 460 | } |
8f261aaf KW |
461 | slot = &mvi->slot_info[tag]; |
462 | slot->tx = mvi->tx_prod; | |
20b09c29 AY |
463 | del_q = TXQ_MODE_I | tag | |
464 | (TXQ_CMD_STP << TXQ_CMD_SHIFT) | | |
465 | (sas_port->phy_mask << TXQ_PHY_SHIFT) | | |
466 | (mvi_dev->taskfileset << TXQ_SRS_SHIFT); | |
467 | mvi->tx[mvi->tx_prod] = cpu_to_le32(del_q); | |
468 | ||
20b09c29 AY |
469 | if (task->data_dir == DMA_FROM_DEVICE) |
470 | flags = (MVS_CHIP_DISP->prd_count() << MCH_PRD_LEN_SHIFT); | |
471 | else | |
472 | flags = (tei->n_elem << MCH_PRD_LEN_SHIFT); | |
8882f081 | 473 | |
b5762948 JG |
474 | if (task->ata_task.use_ncq) |
475 | flags |= MCH_FPDMA; | |
8f261aaf KW |
476 | if (dev->sata_dev.command_set == ATAPI_COMMAND_SET) { |
477 | if (task->ata_task.fis.command != ATA_CMD_ID_ATAPI) | |
478 | flags |= MCH_ATAPI; | |
479 | } | |
480 | ||
b5762948 | 481 | hdr->flags = cpu_to_le32(flags); |
8f261aaf | 482 | |
20b09c29 AY |
483 | if (task->ata_task.use_ncq && mvs_get_ncq_tag(task, &hdr_tag)) |
484 | task->ata_task.fis.sector_count |= (u8) (hdr_tag << 3); | |
4e52fc0a | 485 | else |
20b09c29 AY |
486 | hdr_tag = tag; |
487 | ||
488 | hdr->tags = cpu_to_le32(hdr_tag); | |
489 | ||
b5762948 JG |
490 | hdr->data_len = cpu_to_le32(task->total_xfer_len); |
491 | ||
492 | /* | |
493 | * arrange MVS_SLOT_BUF_SZ-sized DMA buffer according to our needs | |
494 | */ | |
b5762948 | 495 | |
8f261aaf KW |
496 | /* region 1: command table area (MVS_ATA_CMD_SZ bytes) ************** */ |
497 | buf_cmd = buf_tmp = slot->buf; | |
b5762948 JG |
498 | buf_tmp_dma = slot->buf_dma; |
499 | ||
500 | hdr->cmd_tbl = cpu_to_le64(buf_tmp_dma); | |
501 | ||
502 | buf_tmp += MVS_ATA_CMD_SZ; | |
503 | buf_tmp_dma += MVS_ATA_CMD_SZ; | |
504 | ||
8f261aaf | 505 | /* region 2: open address frame area (MVS_OAF_SZ bytes) ********* */ |
b5762948 JG |
506 | /* used for STP. unused for SATA? */ |
507 | buf_oaf = buf_tmp; | |
508 | hdr->open_frame = cpu_to_le64(buf_tmp_dma); | |
509 | ||
510 | buf_tmp += MVS_OAF_SZ; | |
511 | buf_tmp_dma += MVS_OAF_SZ; | |
512 | ||
8f261aaf | 513 | /* region 3: PRD table ********************************************* */ |
b5762948 | 514 | buf_prd = buf_tmp; |
20b09c29 | 515 | |
8f261aaf KW |
516 | if (tei->n_elem) |
517 | hdr->prd_tbl = cpu_to_le64(buf_tmp_dma); | |
518 | else | |
519 | hdr->prd_tbl = 0; | |
20b09c29 | 520 | i = MVS_CHIP_DISP->prd_size() * MVS_CHIP_DISP->prd_count(); |
b5762948 | 521 | |
b5762948 JG |
522 | buf_tmp += i; |
523 | buf_tmp_dma += i; | |
524 | ||
8f261aaf | 525 | /* region 4: status buffer (larger the PRD, smaller this buf) ****** */ |
b5762948 JG |
526 | slot->response = buf_tmp; |
527 | hdr->status_buf = cpu_to_le64(buf_tmp_dma); | |
20b09c29 AY |
528 | if (mvi->flags & MVF_FLAG_SOC) |
529 | hdr->reserved[0] = 0; | |
b5762948 | 530 | |
8f261aaf | 531 | req_len = sizeof(struct host_to_dev_fis); |
b5762948 | 532 | resp_len = MVS_SLOT_BUF_SZ - MVS_ATA_CMD_SZ - |
8f261aaf | 533 | sizeof(struct mvs_err_info) - i; |
b5762948 JG |
534 | |
535 | /* request, response lengths */ | |
8f261aaf | 536 | resp_len = min(resp_len, max_resp_len); |
b5762948 JG |
537 | hdr->lens = cpu_to_le32(((resp_len / 4) << 16) | (req_len / 4)); |
538 | ||
20b09c29 AY |
539 | if (likely(!task->ata_task.device_control_reg_update)) |
540 | task->ata_task.fis.flags |= 0x80; /* C=1: update ATA cmd reg */ | |
b5762948 | 541 | /* fill in command FIS and ATAPI CDB */ |
8f261aaf KW |
542 | memcpy(buf_cmd, &task->ata_task.fis, sizeof(struct host_to_dev_fis)); |
543 | if (dev->sata_dev.command_set == ATAPI_COMMAND_SET) | |
544 | memcpy(buf_cmd + STP_ATAPI_CMD, | |
545 | task->ata_task.atapi_packet, 16); | |
546 | ||
547 | /* generate open address frame hdr (first 12 bytes) */ | |
20b09c29 AY |
548 | /* initiator, STP, ftype 1h */ |
549 | buf_oaf[0] = (1 << 7) | (PROTOCOL_STP << 4) | 0x1; | |
6ceae7c6 | 550 | buf_oaf[1] = min(sas_port->linkrate, dev->linkrate) & 0xf; |
20b09c29 AY |
551 | *(u16 *)(buf_oaf + 2) = cpu_to_be16(mvi_dev->device_id + 1); |
552 | memcpy(buf_oaf + 4, dev->sas_addr, SAS_ADDR_SIZE); | |
b5762948 JG |
553 | |
554 | /* fill in PRD (scatter/gather) table, if any */ | |
20b09c29 | 555 | MVS_CHIP_DISP->make_prd(task->scatter, tei->n_elem, buf_prd); |
8882f081 | 556 | |
20b09c29 | 557 | if (task->data_dir == DMA_FROM_DEVICE) |
8882f081 | 558 | MVS_CHIP_DISP->dma_fix(mvi, sas_port->phy_mask, |
20b09c29 | 559 | TRASH_BUCKET_SIZE, tei->n_elem, buf_prd); |
8882f081 | 560 | |
b5762948 JG |
561 | return 0; |
562 | } | |
563 | ||
564 | static int mvs_task_prep_ssp(struct mvs_info *mvi, | |
20b09c29 AY |
565 | struct mvs_task_exec_info *tei, int is_tmf, |
566 | struct mvs_tmf_task *tmf) | |
b5762948 JG |
567 | { |
568 | struct sas_task *task = tei->task; | |
b5762948 | 569 | struct mvs_cmd_hdr *hdr = tei->hdr; |
8f261aaf | 570 | struct mvs_port *port = tei->port; |
20b09c29 | 571 | struct domain_device *dev = task->dev; |
f9da3be5 | 572 | struct mvs_device *mvi_dev = dev->lldd_dev; |
20b09c29 | 573 | struct asd_sas_port *sas_port = dev->port; |
b5762948 | 574 | struct mvs_slot_info *slot; |
20b09c29 | 575 | void *buf_prd; |
b5762948 JG |
576 | struct ssp_frame_hdr *ssp_hdr; |
577 | void *buf_tmp; | |
578 | u8 *buf_cmd, *buf_oaf, fburst = 0; | |
579 | dma_addr_t buf_tmp_dma; | |
580 | u32 flags; | |
8f261aaf KW |
581 | u32 resp_len, req_len, i, tag = tei->tag; |
582 | const u32 max_resp_len = SB_RFB_MAX; | |
20b09c29 | 583 | u32 phy_mask; |
b5762948 JG |
584 | |
585 | slot = &mvi->slot_info[tag]; | |
586 | ||
20b09c29 AY |
587 | phy_mask = ((port->wide_port_phymap) ? port->wide_port_phymap : |
588 | sas_port->phy_mask) & TXQ_PHY_MASK; | |
589 | ||
8f261aaf KW |
590 | slot->tx = mvi->tx_prod; |
591 | mvi->tx[mvi->tx_prod] = cpu_to_le32(TXQ_MODE_I | tag | | |
592 | (TXQ_CMD_SSP << TXQ_CMD_SHIFT) | | |
4e52fc0a | 593 | (phy_mask << TXQ_PHY_SHIFT)); |
b5762948 JG |
594 | |
595 | flags = MCH_RETRY; | |
596 | if (task->ssp_task.enable_first_burst) { | |
597 | flags |= MCH_FBURST; | |
598 | fburst = (1 << 7); | |
599 | } | |
2b288133 AY |
600 | if (is_tmf) |
601 | flags |= (MCH_SSP_FR_TASK << MCH_SSP_FR_TYPE_SHIFT); | |
84fbd0ce XY |
602 | else |
603 | flags |= (MCH_SSP_FR_CMD << MCH_SSP_FR_TYPE_SHIFT); | |
604 | ||
2b288133 | 605 | hdr->flags = cpu_to_le32(flags | (tei->n_elem << MCH_PRD_LEN_SHIFT)); |
b5762948 JG |
606 | hdr->tags = cpu_to_le32(tag); |
607 | hdr->data_len = cpu_to_le32(task->total_xfer_len); | |
608 | ||
609 | /* | |
610 | * arrange MVS_SLOT_BUF_SZ-sized DMA buffer according to our needs | |
611 | */ | |
b5762948 | 612 | |
8f261aaf KW |
613 | /* region 1: command table area (MVS_SSP_CMD_SZ bytes) ************** */ |
614 | buf_cmd = buf_tmp = slot->buf; | |
b5762948 JG |
615 | buf_tmp_dma = slot->buf_dma; |
616 | ||
617 | hdr->cmd_tbl = cpu_to_le64(buf_tmp_dma); | |
618 | ||
619 | buf_tmp += MVS_SSP_CMD_SZ; | |
620 | buf_tmp_dma += MVS_SSP_CMD_SZ; | |
621 | ||
8f261aaf | 622 | /* region 2: open address frame area (MVS_OAF_SZ bytes) ********* */ |
b5762948 JG |
623 | buf_oaf = buf_tmp; |
624 | hdr->open_frame = cpu_to_le64(buf_tmp_dma); | |
625 | ||
626 | buf_tmp += MVS_OAF_SZ; | |
627 | buf_tmp_dma += MVS_OAF_SZ; | |
628 | ||
8f261aaf | 629 | /* region 3: PRD table ********************************************* */ |
b5762948 | 630 | buf_prd = buf_tmp; |
8f261aaf KW |
631 | if (tei->n_elem) |
632 | hdr->prd_tbl = cpu_to_le64(buf_tmp_dma); | |
633 | else | |
634 | hdr->prd_tbl = 0; | |
b5762948 | 635 | |
20b09c29 | 636 | i = MVS_CHIP_DISP->prd_size() * tei->n_elem; |
b5762948 JG |
637 | buf_tmp += i; |
638 | buf_tmp_dma += i; | |
639 | ||
8f261aaf | 640 | /* region 4: status buffer (larger the PRD, smaller this buf) ****** */ |
b5762948 JG |
641 | slot->response = buf_tmp; |
642 | hdr->status_buf = cpu_to_le64(buf_tmp_dma); | |
20b09c29 AY |
643 | if (mvi->flags & MVF_FLAG_SOC) |
644 | hdr->reserved[0] = 0; | |
b5762948 | 645 | |
b5762948 | 646 | resp_len = MVS_SLOT_BUF_SZ - MVS_SSP_CMD_SZ - MVS_OAF_SZ - |
8f261aaf KW |
647 | sizeof(struct mvs_err_info) - i; |
648 | resp_len = min(resp_len, max_resp_len); | |
649 | ||
650 | req_len = sizeof(struct ssp_frame_hdr) + 28; | |
b5762948 JG |
651 | |
652 | /* request, response lengths */ | |
653 | hdr->lens = cpu_to_le32(((resp_len / 4) << 16) | (req_len / 4)); | |
654 | ||
655 | /* generate open address frame hdr (first 12 bytes) */ | |
20b09c29 AY |
656 | /* initiator, SSP, ftype 1h */ |
657 | buf_oaf[0] = (1 << 7) | (PROTOCOL_SSP << 4) | 0x1; | |
6ceae7c6 | 658 | buf_oaf[1] = min(sas_port->linkrate, dev->linkrate) & 0xf; |
20b09c29 AY |
659 | *(u16 *)(buf_oaf + 2) = cpu_to_be16(mvi_dev->device_id + 1); |
660 | memcpy(buf_oaf + 4, dev->sas_addr, SAS_ADDR_SIZE); | |
b5762948 | 661 | |
8f261aaf KW |
662 | /* fill in SSP frame header (Command Table.SSP frame header) */ |
663 | ssp_hdr = (struct ssp_frame_hdr *)buf_cmd; | |
20b09c29 AY |
664 | |
665 | if (is_tmf) | |
666 | ssp_hdr->frame_type = SSP_TASK; | |
667 | else | |
668 | ssp_hdr->frame_type = SSP_COMMAND; | |
669 | ||
670 | memcpy(ssp_hdr->hashed_dest_addr, dev->hashed_sas_addr, | |
b5762948 JG |
671 | HASHED_SAS_ADDR_SIZE); |
672 | memcpy(ssp_hdr->hashed_src_addr, | |
20b09c29 | 673 | dev->hashed_sas_addr, HASHED_SAS_ADDR_SIZE); |
b5762948 JG |
674 | ssp_hdr->tag = cpu_to_be16(tag); |
675 | ||
20b09c29 | 676 | /* fill in IU for TASK and Command Frame */ |
b5762948 JG |
677 | buf_cmd += sizeof(*ssp_hdr); |
678 | memcpy(buf_cmd, &task->ssp_task.LUN, 8); | |
b5762948 | 679 | |
20b09c29 AY |
680 | if (ssp_hdr->frame_type != SSP_TASK) { |
681 | buf_cmd[9] = fburst | task->ssp_task.task_attr | | |
682 | (task->ssp_task.task_prio << 3); | |
683 | memcpy(buf_cmd + 12, &task->ssp_task.cdb, 16); | |
684 | } else{ | |
685 | buf_cmd[10] = tmf->tmf; | |
686 | switch (tmf->tmf) { | |
687 | case TMF_ABORT_TASK: | |
688 | case TMF_QUERY_TASK: | |
689 | buf_cmd[12] = | |
690 | (tmf->tag_of_task_to_be_managed >> 8) & 0xff; | |
691 | buf_cmd[13] = | |
692 | tmf->tag_of_task_to_be_managed & 0xff; | |
693 | break; | |
694 | default: | |
695 | break; | |
696 | } | |
b5762948 | 697 | } |
20b09c29 AY |
698 | /* fill in PRD (scatter/gather) table, if any */ |
699 | MVS_CHIP_DISP->make_prd(task->scatter, tei->n_elem, buf_prd); | |
b5762948 JG |
700 | return 0; |
701 | } | |
702 | ||
20b09c29 | 703 | #define DEV_IS_GONE(mvi_dev) ((!mvi_dev || (mvi_dev->dev_type == NO_DEVICE))) |
0b15fb1f XY |
704 | static int mvs_task_prep(struct sas_task *task, struct mvs_info *mvi, int is_tmf, |
705 | struct mvs_tmf_task *tmf, int *pass) | |
b5762948 | 706 | { |
8f261aaf | 707 | struct domain_device *dev = task->dev; |
0b15fb1f | 708 | struct mvs_device *mvi_dev = dev->lldd_dev; |
b5762948 | 709 | struct mvs_task_exec_info tei; |
4e52fc0a | 710 | struct mvs_slot_info *slot; |
0b15fb1f XY |
711 | u32 tag = 0xdeadbeef, n_elem = 0; |
712 | int rc = 0; | |
b5762948 | 713 | |
20b09c29 | 714 | if (!dev->port) { |
0b15fb1f | 715 | struct task_status_struct *tsm = &task->task_status; |
20b09c29 AY |
716 | |
717 | tsm->resp = SAS_TASK_UNDELIVERED; | |
718 | tsm->stat = SAS_PHY_DOWN; | |
0b15fb1f XY |
719 | /* |
720 | * libsas will use dev->port, should | |
721 | * not call task_done for sata | |
722 | */ | |
9dc9fd94 | 723 | if (dev->dev_type != SATA_DEV) |
0b15fb1f XY |
724 | task->task_done(task); |
725 | return rc; | |
20b09c29 AY |
726 | } |
727 | ||
0b15fb1f XY |
728 | if (DEV_IS_GONE(mvi_dev)) { |
729 | if (mvi_dev) | |
730 | mv_dprintk("device %d not ready.\n", | |
731 | mvi_dev->device_id); | |
732 | else | |
733 | mv_dprintk("device %016llx not ready.\n", | |
734 | SAS_ADDR(dev->sas_addr)); | |
20b09c29 AY |
735 | |
736 | rc = SAS_PHY_DOWN; | |
0b15fb1f XY |
737 | return rc; |
738 | } | |
739 | tei.port = dev->port->lldd_port; | |
740 | if (tei.port && !tei.port->port_attached && !tmf) { | |
741 | if (sas_protocol_ata(task->task_proto)) { | |
742 | struct task_status_struct *ts = &task->task_status; | |
743 | mv_dprintk("SATA/STP port %d does not attach" | |
744 | "device.\n", dev->port->id); | |
745 | ts->resp = SAS_TASK_COMPLETE; | |
746 | ts->stat = SAS_PHY_DOWN; | |
20b09c29 | 747 | |
0b15fb1f | 748 | task->task_done(task); |
dd4969a8 | 749 | |
dd4969a8 | 750 | } else { |
0b15fb1f XY |
751 | struct task_status_struct *ts = &task->task_status; |
752 | mv_dprintk("SAS port %d does not attach" | |
753 | "device.\n", dev->port->id); | |
754 | ts->resp = SAS_TASK_UNDELIVERED; | |
755 | ts->stat = SAS_PHY_DOWN; | |
756 | task->task_done(task); | |
dd4969a8 | 757 | } |
0b15fb1f XY |
758 | return rc; |
759 | } | |
dd4969a8 | 760 | |
0b15fb1f XY |
761 | if (!sas_protocol_ata(task->task_proto)) { |
762 | if (task->num_scatter) { | |
763 | n_elem = dma_map_sg(mvi->dev, | |
764 | task->scatter, | |
765 | task->num_scatter, | |
766 | task->data_dir); | |
767 | if (!n_elem) { | |
768 | rc = -ENOMEM; | |
769 | goto prep_out; | |
770 | } | |
771 | } | |
772 | } else { | |
773 | n_elem = task->num_scatter; | |
774 | } | |
20b09c29 | 775 | |
0b15fb1f XY |
776 | rc = mvs_tag_alloc(mvi, &tag); |
777 | if (rc) | |
778 | goto err_out; | |
20b09c29 | 779 | |
0b15fb1f | 780 | slot = &mvi->slot_info[tag]; |
20b09c29 | 781 | |
0b15fb1f XY |
782 | task->lldd_task = NULL; |
783 | slot->n_elem = n_elem; | |
784 | slot->slot_tag = tag; | |
785 | ||
786 | slot->buf = pci_pool_alloc(mvi->dma_pool, GFP_ATOMIC, &slot->buf_dma); | |
787 | if (!slot->buf) | |
788 | goto err_out_tag; | |
789 | memset(slot->buf, 0, MVS_SLOT_BUF_SZ); | |
790 | ||
791 | tei.task = task; | |
792 | tei.hdr = &mvi->slot[tag]; | |
793 | tei.tag = tag; | |
794 | tei.n_elem = n_elem; | |
795 | switch (task->task_proto) { | |
796 | case SAS_PROTOCOL_SMP: | |
797 | rc = mvs_task_prep_smp(mvi, &tei); | |
798 | break; | |
799 | case SAS_PROTOCOL_SSP: | |
800 | rc = mvs_task_prep_ssp(mvi, &tei, is_tmf, tmf); | |
801 | break; | |
802 | case SAS_PROTOCOL_SATA: | |
803 | case SAS_PROTOCOL_STP: | |
804 | case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: | |
805 | rc = mvs_task_prep_ata(mvi, &tei); | |
806 | break; | |
807 | default: | |
808 | dev_printk(KERN_ERR, mvi->dev, | |
809 | "unknown sas_task proto: 0x%x\n", | |
810 | task->task_proto); | |
811 | rc = -EINVAL; | |
812 | break; | |
813 | } | |
dd4969a8 | 814 | |
0b15fb1f XY |
815 | if (rc) { |
816 | mv_dprintk("rc is %x\n", rc); | |
817 | goto err_out_slot_buf; | |
818 | } | |
819 | slot->task = task; | |
820 | slot->port = tei.port; | |
821 | task->lldd_task = slot; | |
822 | list_add_tail(&slot->entry, &tei.port->list); | |
823 | spin_lock(&task->task_state_lock); | |
824 | task->task_state_flags |= SAS_TASK_AT_INITIATOR; | |
825 | spin_unlock(&task->task_state_lock); | |
826 | ||
0b15fb1f XY |
827 | mvi_dev->running_req++; |
828 | ++(*pass); | |
829 | mvi->tx_prod = (mvi->tx_prod + 1) & (MVS_CHIP_SLOT_SZ - 1); | |
9dc9fd94 | 830 | |
0b15fb1f | 831 | return rc; |
dd4969a8 | 832 | |
0b15fb1f XY |
833 | err_out_slot_buf: |
834 | pci_pool_free(mvi->dma_pool, slot->buf, slot->buf_dma); | |
dd4969a8 JG |
835 | err_out_tag: |
836 | mvs_tag_free(mvi, tag); | |
837 | err_out: | |
20b09c29 | 838 | |
0b15fb1f XY |
839 | dev_printk(KERN_ERR, mvi->dev, "mvsas prep failed[%d]!\n", rc); |
840 | if (!sas_protocol_ata(task->task_proto)) | |
dd4969a8 | 841 | if (n_elem) |
0b15fb1f XY |
842 | dma_unmap_sg(mvi->dev, task->scatter, n_elem, |
843 | task->data_dir); | |
844 | prep_out: | |
845 | return rc; | |
846 | } | |
847 | ||
848 | static struct mvs_task_list *mvs_task_alloc_list(int *num, gfp_t gfp_flags) | |
849 | { | |
850 | struct mvs_task_list *first = NULL; | |
851 | ||
852 | for (; *num > 0; --*num) { | |
853 | struct mvs_task_list *mvs_list = kmem_cache_zalloc(mvs_task_list_cache, gfp_flags); | |
854 | ||
855 | if (!mvs_list) | |
856 | break; | |
857 | ||
858 | INIT_LIST_HEAD(&mvs_list->list); | |
859 | if (!first) | |
860 | first = mvs_list; | |
861 | else | |
862 | list_add_tail(&mvs_list->list, &first->list); | |
863 | ||
864 | } | |
865 | ||
866 | return first; | |
867 | } | |
868 | ||
869 | static inline void mvs_task_free_list(struct mvs_task_list *mvs_list) | |
870 | { | |
871 | LIST_HEAD(list); | |
872 | struct list_head *pos, *a; | |
873 | struct mvs_task_list *mlist = NULL; | |
874 | ||
875 | __list_add(&list, mvs_list->list.prev, &mvs_list->list); | |
876 | ||
877 | list_for_each_safe(pos, a, &list) { | |
878 | list_del_init(pos); | |
879 | mlist = list_entry(pos, struct mvs_task_list, list); | |
880 | kmem_cache_free(mvs_task_list_cache, mlist); | |
881 | } | |
882 | } | |
883 | ||
884 | static int mvs_task_exec(struct sas_task *task, const int num, gfp_t gfp_flags, | |
885 | struct completion *completion, int is_tmf, | |
886 | struct mvs_tmf_task *tmf) | |
887 | { | |
0b15fb1f XY |
888 | struct mvs_info *mvi = NULL; |
889 | u32 rc = 0; | |
890 | u32 pass = 0; | |
891 | unsigned long flags = 0; | |
892 | ||
893 | mvi = ((struct mvs_device *)task->dev->lldd_dev)->mvi_info; | |
894 | ||
0b15fb1f XY |
895 | spin_lock_irqsave(&mvi->lock, flags); |
896 | rc = mvs_task_prep(task, mvi, is_tmf, tmf, &pass); | |
897 | if (rc) | |
898 | dev_printk(KERN_ERR, mvi->dev, "mvsas exec failed[%d]!\n", rc); | |
899 | ||
900 | if (likely(pass)) | |
901 | MVS_CHIP_DISP->start_delivery(mvi, (mvi->tx_prod - 1) & | |
902 | (MVS_CHIP_SLOT_SZ - 1)); | |
0b84b709 | 903 | spin_unlock_irqrestore(&mvi->lock, flags); |
0b15fb1f | 904 | |
0b15fb1f XY |
905 | return rc; |
906 | } | |
907 | ||
908 | static int mvs_collector_task_exec(struct sas_task *task, const int num, gfp_t gfp_flags, | |
909 | struct completion *completion, int is_tmf, | |
910 | struct mvs_tmf_task *tmf) | |
911 | { | |
912 | struct domain_device *dev = task->dev; | |
913 | struct mvs_prv_info *mpi = dev->port->ha->lldd_ha; | |
914 | struct mvs_info *mvi = NULL; | |
915 | struct sas_task *t = task; | |
916 | struct mvs_task_list *mvs_list = NULL, *a; | |
917 | LIST_HEAD(q); | |
918 | int pass[2] = {0}; | |
919 | u32 rc = 0; | |
920 | u32 n = num; | |
921 | unsigned long flags = 0; | |
922 | ||
923 | mvs_list = mvs_task_alloc_list(&n, gfp_flags); | |
924 | if (n) { | |
925 | printk(KERN_ERR "%s: mvs alloc list failed.\n", __func__); | |
926 | rc = -ENOMEM; | |
927 | goto free_list; | |
928 | } | |
929 | ||
930 | __list_add(&q, mvs_list->list.prev, &mvs_list->list); | |
931 | ||
932 | list_for_each_entry(a, &q, list) { | |
933 | a->task = t; | |
934 | t = list_entry(t->list.next, struct sas_task, list); | |
935 | } | |
936 | ||
937 | list_for_each_entry(a, &q , list) { | |
938 | ||
939 | t = a->task; | |
940 | mvi = ((struct mvs_device *)t->dev->lldd_dev)->mvi_info; | |
941 | ||
942 | spin_lock_irqsave(&mvi->lock, flags); | |
943 | rc = mvs_task_prep(t, mvi, is_tmf, tmf, &pass[mvi->id]); | |
944 | if (rc) | |
945 | dev_printk(KERN_ERR, mvi->dev, "mvsas exec failed[%d]!\n", rc); | |
946 | spin_unlock_irqrestore(&mvi->lock, flags); | |
947 | } | |
948 | ||
949 | if (likely(pass[0])) | |
950 | MVS_CHIP_DISP->start_delivery(mpi->mvi[0], | |
951 | (mpi->mvi[0]->tx_prod - 1) & (MVS_CHIP_SLOT_SZ - 1)); | |
952 | ||
953 | if (likely(pass[1])) | |
954 | MVS_CHIP_DISP->start_delivery(mpi->mvi[1], | |
955 | (mpi->mvi[1]->tx_prod - 1) & (MVS_CHIP_SLOT_SZ - 1)); | |
956 | ||
957 | list_del_init(&q); | |
958 | ||
959 | free_list: | |
960 | if (mvs_list) | |
961 | mvs_task_free_list(mvs_list); | |
962 | ||
dd4969a8 JG |
963 | return rc; |
964 | } | |
965 | ||
20b09c29 AY |
966 | int mvs_queue_command(struct sas_task *task, const int num, |
967 | gfp_t gfp_flags) | |
968 | { | |
0b15fb1f XY |
969 | struct mvs_device *mvi_dev = task->dev->lldd_dev; |
970 | struct sas_ha_struct *sas = mvi_dev->mvi_info->sas; | |
971 | ||
972 | if (sas->lldd_max_execute_num < 2) | |
973 | return mvs_task_exec(task, num, gfp_flags, NULL, 0, NULL); | |
974 | else | |
975 | return mvs_collector_task_exec(task, num, gfp_flags, NULL, 0, NULL); | |
20b09c29 AY |
976 | } |
977 | ||
dd4969a8 JG |
978 | static void mvs_slot_free(struct mvs_info *mvi, u32 rx_desc) |
979 | { | |
980 | u32 slot_idx = rx_desc & RXQ_SLOT_MASK; | |
981 | mvs_tag_clear(mvi, slot_idx); | |
982 | } | |
983 | ||
984 | static void mvs_slot_task_free(struct mvs_info *mvi, struct sas_task *task, | |
985 | struct mvs_slot_info *slot, u32 slot_idx) | |
986 | { | |
20b09c29 AY |
987 | if (!slot->task) |
988 | return; | |
dd4969a8 JG |
989 | if (!sas_protocol_ata(task->task_proto)) |
990 | if (slot->n_elem) | |
20b09c29 | 991 | dma_unmap_sg(mvi->dev, task->scatter, |
dd4969a8 JG |
992 | slot->n_elem, task->data_dir); |
993 | ||
994 | switch (task->task_proto) { | |
995 | case SAS_PROTOCOL_SMP: | |
20b09c29 | 996 | dma_unmap_sg(mvi->dev, &task->smp_task.smp_resp, 1, |
dd4969a8 | 997 | PCI_DMA_FROMDEVICE); |
20b09c29 | 998 | dma_unmap_sg(mvi->dev, &task->smp_task.smp_req, 1, |
dd4969a8 JG |
999 | PCI_DMA_TODEVICE); |
1000 | break; | |
1001 | ||
1002 | case SAS_PROTOCOL_SATA: | |
1003 | case SAS_PROTOCOL_STP: | |
1004 | case SAS_PROTOCOL_SSP: | |
1005 | default: | |
1006 | /* do nothing */ | |
1007 | break; | |
1008 | } | |
0b15fb1f XY |
1009 | |
1010 | if (slot->buf) { | |
1011 | pci_pool_free(mvi->dma_pool, slot->buf, slot->buf_dma); | |
1012 | slot->buf = NULL; | |
1013 | } | |
20b09c29 | 1014 | list_del_init(&slot->entry); |
dd4969a8 JG |
1015 | task->lldd_task = NULL; |
1016 | slot->task = NULL; | |
1017 | slot->port = NULL; | |
20b09c29 AY |
1018 | slot->slot_tag = 0xFFFFFFFF; |
1019 | mvs_slot_free(mvi, slot_idx); | |
dd4969a8 JG |
1020 | } |
1021 | ||
84fbd0ce | 1022 | static void mvs_update_wideport(struct mvs_info *mvi, int phy_no) |
dd4969a8 | 1023 | { |
84fbd0ce | 1024 | struct mvs_phy *phy = &mvi->phy[phy_no]; |
dd4969a8 JG |
1025 | struct mvs_port *port = phy->port; |
1026 | int j, no; | |
1027 | ||
20b09c29 AY |
1028 | for_each_phy(port->wide_port_phymap, j, no) { |
1029 | if (j & 1) { | |
1030 | MVS_CHIP_DISP->write_port_cfg_addr(mvi, no, | |
1031 | PHYR_WIDE_PORT); | |
1032 | MVS_CHIP_DISP->write_port_cfg_data(mvi, no, | |
dd4969a8 JG |
1033 | port->wide_port_phymap); |
1034 | } else { | |
20b09c29 AY |
1035 | MVS_CHIP_DISP->write_port_cfg_addr(mvi, no, |
1036 | PHYR_WIDE_PORT); | |
1037 | MVS_CHIP_DISP->write_port_cfg_data(mvi, no, | |
1038 | 0); | |
dd4969a8 | 1039 | } |
20b09c29 | 1040 | } |
dd4969a8 JG |
1041 | } |
1042 | ||
1043 | static u32 mvs_is_phy_ready(struct mvs_info *mvi, int i) | |
1044 | { | |
1045 | u32 tmp; | |
1046 | struct mvs_phy *phy = &mvi->phy[i]; | |
20b09c29 | 1047 | struct mvs_port *port = phy->port; |
dd4969a8 | 1048 | |
20b09c29 | 1049 | tmp = MVS_CHIP_DISP->read_phy_ctl(mvi, i); |
dd4969a8 JG |
1050 | if ((tmp & PHY_READY_MASK) && !(phy->irq_status & PHYEV_POOF)) { |
1051 | if (!port) | |
1052 | phy->phy_attached = 1; | |
1053 | return tmp; | |
1054 | } | |
1055 | ||
1056 | if (port) { | |
1057 | if (phy->phy_type & PORT_TYPE_SAS) { | |
1058 | port->wide_port_phymap &= ~(1U << i); | |
1059 | if (!port->wide_port_phymap) | |
1060 | port->port_attached = 0; | |
1061 | mvs_update_wideport(mvi, i); | |
1062 | } else if (phy->phy_type & PORT_TYPE_SATA) | |
1063 | port->port_attached = 0; | |
dd4969a8 JG |
1064 | phy->port = NULL; |
1065 | phy->phy_attached = 0; | |
1066 | phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA); | |
1067 | } | |
1068 | return 0; | |
1069 | } | |
1070 | ||
1071 | static void *mvs_get_d2h_reg(struct mvs_info *mvi, int i, void *buf) | |
1072 | { | |
1073 | u32 *s = (u32 *) buf; | |
1074 | ||
1075 | if (!s) | |
1076 | return NULL; | |
1077 | ||
20b09c29 | 1078 | MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_SATA_SIG3); |
84fbd0ce | 1079 | s[3] = cpu_to_le32(MVS_CHIP_DISP->read_port_cfg_data(mvi, i)); |
dd4969a8 | 1080 | |
20b09c29 | 1081 | MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_SATA_SIG2); |
84fbd0ce | 1082 | s[2] = cpu_to_le32(MVS_CHIP_DISP->read_port_cfg_data(mvi, i)); |
dd4969a8 | 1083 | |
20b09c29 | 1084 | MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_SATA_SIG1); |
84fbd0ce | 1085 | s[1] = cpu_to_le32(MVS_CHIP_DISP->read_port_cfg_data(mvi, i)); |
dd4969a8 | 1086 | |
20b09c29 | 1087 | MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_SATA_SIG0); |
84fbd0ce | 1088 | s[0] = cpu_to_le32(MVS_CHIP_DISP->read_port_cfg_data(mvi, i)); |
20b09c29 | 1089 | |
20b09c29 AY |
1090 | if (((s[1] & 0x00FFFFFF) == 0x00EB1401) && (*(u8 *)&s[3] == 0x01)) |
1091 | s[1] = 0x00EB1401 | (*((u8 *)&s[1] + 3) & 0x10); | |
dd4969a8 | 1092 | |
f9da3be5 | 1093 | return s; |
dd4969a8 JG |
1094 | } |
1095 | ||
1096 | static u32 mvs_is_sig_fis_received(u32 irq_status) | |
1097 | { | |
1098 | return irq_status & PHYEV_SIG_FIS; | |
1099 | } | |
1100 | ||
8882f081 XY |
1101 | static void mvs_sig_remove_timer(struct mvs_phy *phy) |
1102 | { | |
1103 | if (phy->timer.function) | |
1104 | del_timer(&phy->timer); | |
1105 | phy->timer.function = NULL; | |
1106 | } | |
1107 | ||
20b09c29 | 1108 | void mvs_update_phyinfo(struct mvs_info *mvi, int i, int get_st) |
dd4969a8 JG |
1109 | { |
1110 | struct mvs_phy *phy = &mvi->phy[i]; | |
20b09c29 | 1111 | struct sas_identify_frame *id; |
b5762948 | 1112 | |
20b09c29 | 1113 | id = (struct sas_identify_frame *)phy->frame_rcvd; |
b5762948 | 1114 | |
dd4969a8 | 1115 | if (get_st) { |
20b09c29 | 1116 | phy->irq_status = MVS_CHIP_DISP->read_port_irq_stat(mvi, i); |
dd4969a8 JG |
1117 | phy->phy_status = mvs_is_phy_ready(mvi, i); |
1118 | } | |
8f261aaf | 1119 | |
dd4969a8 | 1120 | if (phy->phy_status) { |
20b09c29 AY |
1121 | int oob_done = 0; |
1122 | struct asd_sas_phy *sas_phy = &mvi->phy[i].sas_phy; | |
b5762948 | 1123 | |
20b09c29 AY |
1124 | oob_done = MVS_CHIP_DISP->oob_done(mvi, i); |
1125 | ||
1126 | MVS_CHIP_DISP->fix_phy_info(mvi, i, id); | |
1127 | if (phy->phy_type & PORT_TYPE_SATA) { | |
1128 | phy->identify.target_port_protocols = SAS_PROTOCOL_STP; | |
1129 | if (mvs_is_sig_fis_received(phy->irq_status)) { | |
8882f081 | 1130 | mvs_sig_remove_timer(phy); |
20b09c29 AY |
1131 | phy->phy_attached = 1; |
1132 | phy->att_dev_sas_addr = | |
1133 | i + mvi->id * mvi->chip->n_phy; | |
1134 | if (oob_done) | |
1135 | sas_phy->oob_mode = SATA_OOB_MODE; | |
1136 | phy->frame_rcvd_size = | |
1137 | sizeof(struct dev_to_host_fis); | |
f9da3be5 | 1138 | mvs_get_d2h_reg(mvi, i, id); |
20b09c29 AY |
1139 | } else { |
1140 | u32 tmp; | |
1141 | dev_printk(KERN_DEBUG, mvi->dev, | |
1142 | "Phy%d : No sig fis\n", i); | |
1143 | tmp = MVS_CHIP_DISP->read_port_irq_mask(mvi, i); | |
1144 | MVS_CHIP_DISP->write_port_irq_mask(mvi, i, | |
1145 | tmp | PHYEV_SIG_FIS); | |
1146 | phy->phy_attached = 0; | |
1147 | phy->phy_type &= ~PORT_TYPE_SATA; | |
20b09c29 AY |
1148 | goto out_done; |
1149 | } | |
9dc9fd94 | 1150 | } else if (phy->phy_type & PORT_TYPE_SAS |
20b09c29 AY |
1151 | || phy->att_dev_info & PORT_SSP_INIT_MASK) { |
1152 | phy->phy_attached = 1; | |
dd4969a8 | 1153 | phy->identify.device_type = |
20b09c29 | 1154 | phy->att_dev_info & PORT_DEV_TYPE_MASK; |
b5762948 | 1155 | |
dd4969a8 JG |
1156 | if (phy->identify.device_type == SAS_END_DEV) |
1157 | phy->identify.target_port_protocols = | |
1158 | SAS_PROTOCOL_SSP; | |
1159 | else if (phy->identify.device_type != NO_DEVICE) | |
1160 | phy->identify.target_port_protocols = | |
1161 | SAS_PROTOCOL_SMP; | |
20b09c29 | 1162 | if (oob_done) |
dd4969a8 JG |
1163 | sas_phy->oob_mode = SAS_OOB_MODE; |
1164 | phy->frame_rcvd_size = | |
1165 | sizeof(struct sas_identify_frame); | |
dd4969a8 | 1166 | } |
20b09c29 AY |
1167 | memcpy(sas_phy->attached_sas_addr, |
1168 | &phy->att_dev_sas_addr, SAS_ADDR_SIZE); | |
b5762948 | 1169 | |
20b09c29 AY |
1170 | if (MVS_CHIP_DISP->phy_work_around) |
1171 | MVS_CHIP_DISP->phy_work_around(mvi, i); | |
dd4969a8 | 1172 | } |
84fbd0ce | 1173 | mv_dprintk("phy %d attach dev info is %x\n", |
20b09c29 | 1174 | i + mvi->id * mvi->chip->n_phy, phy->att_dev_info); |
84fbd0ce | 1175 | mv_dprintk("phy %d attach sas addr is %llx\n", |
20b09c29 | 1176 | i + mvi->id * mvi->chip->n_phy, phy->att_dev_sas_addr); |
4e52fc0a | 1177 | out_done: |
dd4969a8 | 1178 | if (get_st) |
20b09c29 | 1179 | MVS_CHIP_DISP->write_port_irq_stat(mvi, i, phy->irq_status); |
b5762948 JG |
1180 | } |
1181 | ||
20b09c29 | 1182 | static void mvs_port_notify_formed(struct asd_sas_phy *sas_phy, int lock) |
8f261aaf | 1183 | { |
dd4969a8 | 1184 | struct sas_ha_struct *sas_ha = sas_phy->ha; |
20b09c29 | 1185 | struct mvs_info *mvi = NULL; int i = 0, hi; |
dd4969a8 | 1186 | struct mvs_phy *phy = sas_phy->lldd_phy; |
20b09c29 AY |
1187 | struct asd_sas_port *sas_port = sas_phy->port; |
1188 | struct mvs_port *port; | |
1189 | unsigned long flags = 0; | |
1190 | if (!sas_port) | |
1191 | return; | |
8f261aaf | 1192 | |
20b09c29 AY |
1193 | while (sas_ha->sas_phy[i]) { |
1194 | if (sas_ha->sas_phy[i] == sas_phy) | |
1195 | break; | |
1196 | i++; | |
1197 | } | |
1198 | hi = i/((struct mvs_prv_info *)sas_ha->lldd_ha)->n_phy; | |
1199 | mvi = ((struct mvs_prv_info *)sas_ha->lldd_ha)->mvi[hi]; | |
84fbd0ce XY |
1200 | if (i >= mvi->chip->n_phy) |
1201 | port = &mvi->port[i - mvi->chip->n_phy]; | |
20b09c29 | 1202 | else |
84fbd0ce | 1203 | port = &mvi->port[i]; |
20b09c29 AY |
1204 | if (lock) |
1205 | spin_lock_irqsave(&mvi->lock, flags); | |
dd4969a8 JG |
1206 | port->port_attached = 1; |
1207 | phy->port = port; | |
0b15fb1f | 1208 | sas_port->lldd_port = port; |
dd4969a8 JG |
1209 | if (phy->phy_type & PORT_TYPE_SAS) { |
1210 | port->wide_port_phymap = sas_port->phy_mask; | |
20b09c29 | 1211 | mv_printk("set wide port phy map %x\n", sas_port->phy_mask); |
dd4969a8 | 1212 | mvs_update_wideport(mvi, sas_phy->id); |
477f6d19 XY |
1213 | |
1214 | /* direct attached SAS device */ | |
1215 | if (phy->att_dev_info & PORT_SSP_TRGT_MASK) { | |
1216 | MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_PHY_STAT); | |
1217 | MVS_CHIP_DISP->write_port_cfg_data(mvi, i, 0x04); | |
1218 | } | |
8f261aaf | 1219 | } |
20b09c29 AY |
1220 | if (lock) |
1221 | spin_unlock_irqrestore(&mvi->lock, flags); | |
dd4969a8 JG |
1222 | } |
1223 | ||
20b09c29 | 1224 | static void mvs_port_notify_deformed(struct asd_sas_phy *sas_phy, int lock) |
dd4969a8 | 1225 | { |
9dc9fd94 S |
1226 | struct domain_device *dev; |
1227 | struct mvs_phy *phy = sas_phy->lldd_phy; | |
1228 | struct mvs_info *mvi = phy->mvi; | |
1229 | struct asd_sas_port *port = sas_phy->port; | |
1230 | int phy_no = 0; | |
1231 | ||
1232 | while (phy != &mvi->phy[phy_no]) { | |
1233 | phy_no++; | |
1234 | if (phy_no >= MVS_MAX_PHYS) | |
1235 | return; | |
1236 | } | |
1237 | list_for_each_entry(dev, &port->dev_list, dev_list_node) | |
84fbd0ce | 1238 | mvs_do_release_task(phy->mvi, phy_no, dev); |
9dc9fd94 | 1239 | |
dd4969a8 JG |
1240 | } |
1241 | ||
dd4969a8 | 1242 | |
20b09c29 AY |
1243 | void mvs_port_formed(struct asd_sas_phy *sas_phy) |
1244 | { | |
1245 | mvs_port_notify_formed(sas_phy, 1); | |
dd4969a8 JG |
1246 | } |
1247 | ||
20b09c29 | 1248 | void mvs_port_deformed(struct asd_sas_phy *sas_phy) |
dd4969a8 | 1249 | { |
20b09c29 AY |
1250 | mvs_port_notify_deformed(sas_phy, 1); |
1251 | } | |
8f261aaf | 1252 | |
20b09c29 AY |
1253 | struct mvs_device *mvs_alloc_dev(struct mvs_info *mvi) |
1254 | { | |
1255 | u32 dev; | |
1256 | for (dev = 0; dev < MVS_MAX_DEVICES; dev++) { | |
1257 | if (mvi->devices[dev].dev_type == NO_DEVICE) { | |
1258 | mvi->devices[dev].device_id = dev; | |
1259 | return &mvi->devices[dev]; | |
1260 | } | |
8f261aaf | 1261 | } |
8121ed42 | 1262 | |
20b09c29 AY |
1263 | if (dev == MVS_MAX_DEVICES) |
1264 | mv_printk("max support %d devices, ignore ..\n", | |
1265 | MVS_MAX_DEVICES); | |
1266 | ||
1267 | return NULL; | |
8f261aaf KW |
1268 | } |
1269 | ||
20b09c29 | 1270 | void mvs_free_dev(struct mvs_device *mvi_dev) |
b5762948 | 1271 | { |
20b09c29 AY |
1272 | u32 id = mvi_dev->device_id; |
1273 | memset(mvi_dev, 0, sizeof(*mvi_dev)); | |
1274 | mvi_dev->device_id = id; | |
1275 | mvi_dev->dev_type = NO_DEVICE; | |
1276 | mvi_dev->dev_status = MVS_DEV_NORMAL; | |
1277 | mvi_dev->taskfileset = MVS_ID_NOT_MAPPED; | |
1278 | } | |
b5762948 | 1279 | |
20b09c29 AY |
1280 | int mvs_dev_found_notify(struct domain_device *dev, int lock) |
1281 | { | |
1282 | unsigned long flags = 0; | |
1283 | int res = 0; | |
1284 | struct mvs_info *mvi = NULL; | |
1285 | struct domain_device *parent_dev = dev->parent; | |
1286 | struct mvs_device *mvi_device; | |
b5762948 | 1287 | |
20b09c29 | 1288 | mvi = mvs_find_dev_mvi(dev); |
b5762948 | 1289 | |
20b09c29 AY |
1290 | if (lock) |
1291 | spin_lock_irqsave(&mvi->lock, flags); | |
1292 | ||
1293 | mvi_device = mvs_alloc_dev(mvi); | |
1294 | if (!mvi_device) { | |
1295 | res = -1; | |
1296 | goto found_out; | |
b5762948 | 1297 | } |
f9da3be5 | 1298 | dev->lldd_dev = mvi_device; |
9dc9fd94 | 1299 | mvi_device->dev_status = MVS_DEV_NORMAL; |
20b09c29 | 1300 | mvi_device->dev_type = dev->dev_type; |
9870d9a2 | 1301 | mvi_device->mvi_info = mvi; |
84fbd0ce | 1302 | mvi_device->sas_device = dev; |
20b09c29 AY |
1303 | if (parent_dev && DEV_IS_EXPANDER(parent_dev->dev_type)) { |
1304 | int phy_id; | |
1305 | u8 phy_num = parent_dev->ex_dev.num_phys; | |
1306 | struct ex_phy *phy; | |
1307 | for (phy_id = 0; phy_id < phy_num; phy_id++) { | |
1308 | phy = &parent_dev->ex_dev.ex_phy[phy_id]; | |
1309 | if (SAS_ADDR(phy->attached_sas_addr) == | |
1310 | SAS_ADDR(dev->sas_addr)) { | |
1311 | mvi_device->attached_phy = phy_id; | |
1312 | break; | |
1313 | } | |
1314 | } | |
b5762948 | 1315 | |
20b09c29 AY |
1316 | if (phy_id == phy_num) { |
1317 | mv_printk("Error: no attached dev:%016llx" | |
1318 | "at ex:%016llx.\n", | |
1319 | SAS_ADDR(dev->sas_addr), | |
1320 | SAS_ADDR(parent_dev->sas_addr)); | |
1321 | res = -1; | |
1322 | } | |
dd4969a8 | 1323 | } |
b5762948 | 1324 | |
20b09c29 AY |
1325 | found_out: |
1326 | if (lock) | |
1327 | spin_unlock_irqrestore(&mvi->lock, flags); | |
1328 | return res; | |
1329 | } | |
b5762948 | 1330 | |
20b09c29 AY |
1331 | int mvs_dev_found(struct domain_device *dev) |
1332 | { | |
1333 | return mvs_dev_found_notify(dev, 1); | |
1334 | } | |
b5762948 | 1335 | |
9dc9fd94 | 1336 | void mvs_dev_gone_notify(struct domain_device *dev) |
20b09c29 AY |
1337 | { |
1338 | unsigned long flags = 0; | |
f9da3be5 | 1339 | struct mvs_device *mvi_dev = dev->lldd_dev; |
9870d9a2 | 1340 | struct mvs_info *mvi = mvi_dev->mvi_info; |
b5762948 | 1341 | |
9dc9fd94 | 1342 | spin_lock_irqsave(&mvi->lock, flags); |
b5762948 | 1343 | |
20b09c29 AY |
1344 | if (mvi_dev) { |
1345 | mv_dprintk("found dev[%d:%x] is gone.\n", | |
1346 | mvi_dev->device_id, mvi_dev->dev_type); | |
9dc9fd94 | 1347 | mvs_release_task(mvi, dev); |
20b09c29 AY |
1348 | mvs_free_reg_set(mvi, mvi_dev); |
1349 | mvs_free_dev(mvi_dev); | |
1350 | } else { | |
1351 | mv_dprintk("found dev has gone.\n"); | |
b5762948 | 1352 | } |
20b09c29 | 1353 | dev->lldd_dev = NULL; |
84fbd0ce | 1354 | mvi_dev->sas_device = NULL; |
b5762948 | 1355 | |
9dc9fd94 | 1356 | spin_unlock_irqrestore(&mvi->lock, flags); |
b5762948 JG |
1357 | } |
1358 | ||
b5762948 | 1359 | |
20b09c29 AY |
1360 | void mvs_dev_gone(struct domain_device *dev) |
1361 | { | |
9dc9fd94 | 1362 | mvs_dev_gone_notify(dev); |
20b09c29 | 1363 | } |
b5762948 | 1364 | |
20b09c29 AY |
1365 | static void mvs_task_done(struct sas_task *task) |
1366 | { | |
f0bf750c | 1367 | if (!del_timer(&task->slow_task->timer)) |
20b09c29 | 1368 | return; |
f0bf750c | 1369 | complete(&task->slow_task->completion); |
b5762948 | 1370 | } |
b5762948 | 1371 | |
20b09c29 | 1372 | static void mvs_tmf_timedout(unsigned long data) |
b5762948 | 1373 | { |
20b09c29 | 1374 | struct sas_task *task = (struct sas_task *)data; |
8f261aaf | 1375 | |
20b09c29 | 1376 | task->task_state_flags |= SAS_TASK_STATE_ABORTED; |
f0bf750c | 1377 | complete(&task->slow_task->completion); |
20b09c29 | 1378 | } |
8f261aaf | 1379 | |
20b09c29 AY |
1380 | #define MVS_TASK_TIMEOUT 20 |
1381 | static int mvs_exec_internal_tmf_task(struct domain_device *dev, | |
1382 | void *parameter, u32 para_len, struct mvs_tmf_task *tmf) | |
1383 | { | |
1384 | int res, retry; | |
1385 | struct sas_task *task = NULL; | |
8f261aaf | 1386 | |
20b09c29 | 1387 | for (retry = 0; retry < 3; retry++) { |
f0bf750c | 1388 | task = sas_alloc_slow_task(GFP_KERNEL); |
20b09c29 AY |
1389 | if (!task) |
1390 | return -ENOMEM; | |
8f261aaf | 1391 | |
20b09c29 AY |
1392 | task->dev = dev; |
1393 | task->task_proto = dev->tproto; | |
8f261aaf | 1394 | |
20b09c29 AY |
1395 | memcpy(&task->ssp_task, parameter, para_len); |
1396 | task->task_done = mvs_task_done; | |
8f261aaf | 1397 | |
f0bf750c DW |
1398 | task->slow_task->timer.data = (unsigned long) task; |
1399 | task->slow_task->timer.function = mvs_tmf_timedout; | |
1400 | task->slow_task->timer.expires = jiffies + MVS_TASK_TIMEOUT*HZ; | |
1401 | add_timer(&task->slow_task->timer); | |
8f261aaf | 1402 | |
0b84b709 | 1403 | res = mvs_task_exec(task, 1, GFP_KERNEL, NULL, 1, tmf); |
8f261aaf | 1404 | |
20b09c29 | 1405 | if (res) { |
f0bf750c | 1406 | del_timer(&task->slow_task->timer); |
20b09c29 AY |
1407 | mv_printk("executing internel task failed:%d\n", res); |
1408 | goto ex_err; | |
1409 | } | |
8f261aaf | 1410 | |
f0bf750c | 1411 | wait_for_completion(&task->slow_task->completion); |
84fbd0ce | 1412 | res = TMF_RESP_FUNC_FAILED; |
20b09c29 AY |
1413 | /* Even TMF timed out, return direct. */ |
1414 | if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) { | |
1415 | if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) { | |
1416 | mv_printk("TMF task[%x] timeout.\n", tmf->tmf); | |
1417 | goto ex_err; | |
1418 | } | |
1419 | } | |
8f261aaf | 1420 | |
20b09c29 | 1421 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
df64d3ca | 1422 | task->task_status.stat == SAM_STAT_GOOD) { |
20b09c29 AY |
1423 | res = TMF_RESP_FUNC_COMPLETE; |
1424 | break; | |
1425 | } | |
b5762948 | 1426 | |
20b09c29 AY |
1427 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
1428 | task->task_status.stat == SAS_DATA_UNDERRUN) { | |
1429 | /* no error, but return the number of bytes of | |
1430 | * underrun */ | |
1431 | res = task->task_status.residual; | |
1432 | break; | |
1433 | } | |
b5762948 | 1434 | |
20b09c29 AY |
1435 | if (task->task_status.resp == SAS_TASK_COMPLETE && |
1436 | task->task_status.stat == SAS_DATA_OVERRUN) { | |
1437 | mv_dprintk("blocked task error.\n"); | |
1438 | res = -EMSGSIZE; | |
1439 | break; | |
1440 | } else { | |
1441 | mv_dprintk(" task to dev %016llx response: 0x%x " | |
1442 | "status 0x%x\n", | |
1443 | SAS_ADDR(dev->sas_addr), | |
1444 | task->task_status.resp, | |
1445 | task->task_status.stat); | |
4fcf812c | 1446 | sas_free_task(task); |
20b09c29 | 1447 | task = NULL; |
b5762948 | 1448 | |
dd4969a8 | 1449 | } |
dd4969a8 | 1450 | } |
20b09c29 AY |
1451 | ex_err: |
1452 | BUG_ON(retry == 3 && task != NULL); | |
4fcf812c | 1453 | sas_free_task(task); |
20b09c29 | 1454 | return res; |
dd4969a8 | 1455 | } |
b5762948 | 1456 | |
20b09c29 AY |
1457 | static int mvs_debug_issue_ssp_tmf(struct domain_device *dev, |
1458 | u8 *lun, struct mvs_tmf_task *tmf) | |
dd4969a8 | 1459 | { |
20b09c29 | 1460 | struct sas_ssp_task ssp_task; |
20b09c29 AY |
1461 | if (!(dev->tproto & SAS_PROTOCOL_SSP)) |
1462 | return TMF_RESP_FUNC_ESUPP; | |
b5762948 | 1463 | |
84fbd0ce | 1464 | memcpy(ssp_task.LUN, lun, 8); |
b5762948 | 1465 | |
20b09c29 AY |
1466 | return mvs_exec_internal_tmf_task(dev, &ssp_task, |
1467 | sizeof(ssp_task), tmf); | |
1468 | } | |
8f261aaf | 1469 | |
8f261aaf | 1470 | |
20b09c29 AY |
1471 | /* Standard mandates link reset for ATA (type 0) |
1472 | and hard reset for SSP (type 1) , only for RECOVERY */ | |
1473 | static int mvs_debug_I_T_nexus_reset(struct domain_device *dev) | |
1474 | { | |
1475 | int rc; | |
f41a0c44 | 1476 | struct sas_phy *phy = sas_get_local_phy(dev); |
20b09c29 AY |
1477 | int reset_type = (dev->dev_type == SATA_DEV || |
1478 | (dev->tproto & SAS_PROTOCOL_STP)) ? 0 : 1; | |
1479 | rc = sas_phy_reset(phy, reset_type); | |
f41a0c44 | 1480 | sas_put_local_phy(phy); |
20b09c29 AY |
1481 | msleep(2000); |
1482 | return rc; | |
1483 | } | |
8f261aaf | 1484 | |
20b09c29 AY |
1485 | /* mandatory SAM-3 */ |
1486 | int mvs_lu_reset(struct domain_device *dev, u8 *lun) | |
1487 | { | |
1488 | unsigned long flags; | |
84fbd0ce | 1489 | int rc = TMF_RESP_FUNC_FAILED; |
20b09c29 | 1490 | struct mvs_tmf_task tmf_task; |
f9da3be5 | 1491 | struct mvs_device * mvi_dev = dev->lldd_dev; |
9870d9a2 | 1492 | struct mvs_info *mvi = mvi_dev->mvi_info; |
20b09c29 AY |
1493 | |
1494 | tmf_task.tmf = TMF_LU_RESET; | |
1495 | mvi_dev->dev_status = MVS_DEV_EH; | |
1496 | rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task); | |
1497 | if (rc == TMF_RESP_FUNC_COMPLETE) { | |
20b09c29 | 1498 | spin_lock_irqsave(&mvi->lock, flags); |
84fbd0ce | 1499 | mvs_release_task(mvi, dev); |
20b09c29 | 1500 | spin_unlock_irqrestore(&mvi->lock, flags); |
dd4969a8 | 1501 | } |
20b09c29 AY |
1502 | /* If failed, fall-through I_T_Nexus reset */ |
1503 | mv_printk("%s for device[%x]:rc= %d\n", __func__, | |
1504 | mvi_dev->device_id, rc); | |
1505 | return rc; | |
1506 | } | |
8f261aaf | 1507 | |
20b09c29 AY |
1508 | int mvs_I_T_nexus_reset(struct domain_device *dev) |
1509 | { | |
1510 | unsigned long flags; | |
9dc9fd94 S |
1511 | int rc = TMF_RESP_FUNC_FAILED; |
1512 | struct mvs_device * mvi_dev = (struct mvs_device *)dev->lldd_dev; | |
9870d9a2 | 1513 | struct mvs_info *mvi = mvi_dev->mvi_info; |
20b09c29 AY |
1514 | |
1515 | if (mvi_dev->dev_status != MVS_DEV_EH) | |
1516 | return TMF_RESP_FUNC_COMPLETE; | |
84fbd0ce XY |
1517 | else |
1518 | mvi_dev->dev_status = MVS_DEV_NORMAL; | |
20b09c29 AY |
1519 | rc = mvs_debug_I_T_nexus_reset(dev); |
1520 | mv_printk("%s for device[%x]:rc= %d\n", | |
1521 | __func__, mvi_dev->device_id, rc); | |
1522 | ||
20b09c29 | 1523 | spin_lock_irqsave(&mvi->lock, flags); |
9dc9fd94 | 1524 | mvs_release_task(mvi, dev); |
20b09c29 AY |
1525 | spin_unlock_irqrestore(&mvi->lock, flags); |
1526 | ||
1527 | return rc; | |
1528 | } | |
1529 | /* optional SAM-3 */ | |
1530 | int mvs_query_task(struct sas_task *task) | |
1531 | { | |
1532 | u32 tag; | |
1533 | struct scsi_lun lun; | |
1534 | struct mvs_tmf_task tmf_task; | |
1535 | int rc = TMF_RESP_FUNC_FAILED; | |
1536 | ||
1537 | if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) { | |
1538 | struct scsi_cmnd * cmnd = (struct scsi_cmnd *)task->uldd_task; | |
1539 | struct domain_device *dev = task->dev; | |
9870d9a2 AY |
1540 | struct mvs_device *mvi_dev = (struct mvs_device *)dev->lldd_dev; |
1541 | struct mvs_info *mvi = mvi_dev->mvi_info; | |
20b09c29 AY |
1542 | |
1543 | int_to_scsilun(cmnd->device->lun, &lun); | |
1544 | rc = mvs_find_tag(mvi, task, &tag); | |
1545 | if (rc == 0) { | |
1546 | rc = TMF_RESP_FUNC_FAILED; | |
dd4969a8 | 1547 | return rc; |
20b09c29 | 1548 | } |
8f261aaf | 1549 | |
20b09c29 AY |
1550 | tmf_task.tmf = TMF_QUERY_TASK; |
1551 | tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag); | |
8f261aaf | 1552 | |
20b09c29 AY |
1553 | rc = mvs_debug_issue_ssp_tmf(dev, lun.scsi_lun, &tmf_task); |
1554 | switch (rc) { | |
1555 | /* The task is still in Lun, release it then */ | |
1556 | case TMF_RESP_FUNC_SUCC: | |
1557 | /* The task is not in Lun or failed, reset the phy */ | |
1558 | case TMF_RESP_FUNC_FAILED: | |
1559 | case TMF_RESP_FUNC_COMPLETE: | |
1560 | break; | |
1561 | } | |
dd4969a8 | 1562 | } |
20b09c29 AY |
1563 | mv_printk("%s:rc= %d\n", __func__, rc); |
1564 | return rc; | |
8f261aaf KW |
1565 | } |
1566 | ||
20b09c29 AY |
1567 | /* mandatory SAM-3, still need free task/slot info */ |
1568 | int mvs_abort_task(struct sas_task *task) | |
8f261aaf | 1569 | { |
20b09c29 AY |
1570 | struct scsi_lun lun; |
1571 | struct mvs_tmf_task tmf_task; | |
1572 | struct domain_device *dev = task->dev; | |
9870d9a2 | 1573 | struct mvs_device *mvi_dev = (struct mvs_device *)dev->lldd_dev; |
24ae163e | 1574 | struct mvs_info *mvi; |
20b09c29 AY |
1575 | int rc = TMF_RESP_FUNC_FAILED; |
1576 | unsigned long flags; | |
1577 | u32 tag; | |
9870d9a2 | 1578 | |
9dc9fd94 | 1579 | if (!mvi_dev) { |
84fbd0ce XY |
1580 | mv_printk("Device has removed\n"); |
1581 | return TMF_RESP_FUNC_FAILED; | |
9dc9fd94 S |
1582 | } |
1583 | ||
24ae163e JS |
1584 | mvi = mvi_dev->mvi_info; |
1585 | ||
20b09c29 AY |
1586 | spin_lock_irqsave(&task->task_state_lock, flags); |
1587 | if (task->task_state_flags & SAS_TASK_STATE_DONE) { | |
1588 | spin_unlock_irqrestore(&task->task_state_lock, flags); | |
1589 | rc = TMF_RESP_FUNC_COMPLETE; | |
1590 | goto out; | |
dd4969a8 | 1591 | } |
20b09c29 | 1592 | spin_unlock_irqrestore(&task->task_state_lock, flags); |
9dc9fd94 | 1593 | mvi_dev->dev_status = MVS_DEV_EH; |
20b09c29 AY |
1594 | if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) { |
1595 | struct scsi_cmnd * cmnd = (struct scsi_cmnd *)task->uldd_task; | |
1596 | ||
1597 | int_to_scsilun(cmnd->device->lun, &lun); | |
1598 | rc = mvs_find_tag(mvi, task, &tag); | |
1599 | if (rc == 0) { | |
1600 | mv_printk("No such tag in %s\n", __func__); | |
1601 | rc = TMF_RESP_FUNC_FAILED; | |
1602 | return rc; | |
1603 | } | |
8f261aaf | 1604 | |
20b09c29 AY |
1605 | tmf_task.tmf = TMF_ABORT_TASK; |
1606 | tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag); | |
8f261aaf | 1607 | |
20b09c29 | 1608 | rc = mvs_debug_issue_ssp_tmf(dev, lun.scsi_lun, &tmf_task); |
8f261aaf | 1609 | |
20b09c29 AY |
1610 | /* if successful, clear the task and callback forwards.*/ |
1611 | if (rc == TMF_RESP_FUNC_COMPLETE) { | |
1612 | u32 slot_no; | |
1613 | struct mvs_slot_info *slot; | |
8f261aaf | 1614 | |
20b09c29 | 1615 | if (task->lldd_task) { |
f9da3be5 | 1616 | slot = task->lldd_task; |
20b09c29 | 1617 | slot_no = (u32) (slot - mvi->slot_info); |
9dc9fd94 | 1618 | spin_lock_irqsave(&mvi->lock, flags); |
20b09c29 | 1619 | mvs_slot_complete(mvi, slot_no, 1); |
9dc9fd94 | 1620 | spin_unlock_irqrestore(&mvi->lock, flags); |
20b09c29 AY |
1621 | } |
1622 | } | |
9dc9fd94 | 1623 | |
20b09c29 AY |
1624 | } else if (task->task_proto & SAS_PROTOCOL_SATA || |
1625 | task->task_proto & SAS_PROTOCOL_STP) { | |
9dc9fd94 S |
1626 | if (SATA_DEV == dev->dev_type) { |
1627 | struct mvs_slot_info *slot = task->lldd_task; | |
9dc9fd94 | 1628 | u32 slot_idx = (u32)(slot - mvi->slot_info); |
84fbd0ce | 1629 | mv_dprintk("mvs_abort_task() mvi=%p task=%p " |
9dc9fd94 S |
1630 | "slot=%p slot_idx=x%x\n", |
1631 | mvi, task, slot, slot_idx); | |
95ab0003 | 1632 | task->task_state_flags |= SAS_TASK_STATE_ABORTED; |
9dc9fd94 | 1633 | mvs_slot_task_free(mvi, task, slot, slot_idx); |
84fbd0ce XY |
1634 | rc = TMF_RESP_FUNC_COMPLETE; |
1635 | goto out; | |
9dc9fd94 | 1636 | } |
8f261aaf | 1637 | |
20b09c29 AY |
1638 | } |
1639 | out: | |
1640 | if (rc != TMF_RESP_FUNC_COMPLETE) | |
1641 | mv_printk("%s:rc= %d\n", __func__, rc); | |
dd4969a8 | 1642 | return rc; |
8f261aaf KW |
1643 | } |
1644 | ||
20b09c29 | 1645 | int mvs_abort_task_set(struct domain_device *dev, u8 *lun) |
8f261aaf | 1646 | { |
20b09c29 AY |
1647 | int rc = TMF_RESP_FUNC_FAILED; |
1648 | struct mvs_tmf_task tmf_task; | |
8f261aaf | 1649 | |
20b09c29 AY |
1650 | tmf_task.tmf = TMF_ABORT_TASK_SET; |
1651 | rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task); | |
dd4969a8 | 1652 | |
20b09c29 | 1653 | return rc; |
8f261aaf KW |
1654 | } |
1655 | ||
20b09c29 | 1656 | int mvs_clear_aca(struct domain_device *dev, u8 *lun) |
8f261aaf | 1657 | { |
20b09c29 AY |
1658 | int rc = TMF_RESP_FUNC_FAILED; |
1659 | struct mvs_tmf_task tmf_task; | |
8f261aaf | 1660 | |
20b09c29 AY |
1661 | tmf_task.tmf = TMF_CLEAR_ACA; |
1662 | rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task); | |
8f261aaf | 1663 | |
20b09c29 AY |
1664 | return rc; |
1665 | } | |
8f261aaf | 1666 | |
20b09c29 AY |
1667 | int mvs_clear_task_set(struct domain_device *dev, u8 *lun) |
1668 | { | |
1669 | int rc = TMF_RESP_FUNC_FAILED; | |
1670 | struct mvs_tmf_task tmf_task; | |
8f261aaf | 1671 | |
20b09c29 AY |
1672 | tmf_task.tmf = TMF_CLEAR_TASK_SET; |
1673 | rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task); | |
8f261aaf | 1674 | |
20b09c29 | 1675 | return rc; |
dd4969a8 | 1676 | } |
8f261aaf | 1677 | |
20b09c29 AY |
1678 | static int mvs_sata_done(struct mvs_info *mvi, struct sas_task *task, |
1679 | u32 slot_idx, int err) | |
dd4969a8 | 1680 | { |
f9da3be5 | 1681 | struct mvs_device *mvi_dev = task->dev->lldd_dev; |
20b09c29 AY |
1682 | struct task_status_struct *tstat = &task->task_status; |
1683 | struct ata_task_resp *resp = (struct ata_task_resp *)tstat->buf; | |
df64d3ca | 1684 | int stat = SAM_STAT_GOOD; |
e9ff91b6 | 1685 | |
8f261aaf | 1686 | |
20b09c29 AY |
1687 | resp->frame_len = sizeof(struct dev_to_host_fis); |
1688 | memcpy(&resp->ending_fis[0], | |
1689 | SATA_RECEIVED_D2H_FIS(mvi_dev->taskfileset), | |
1690 | sizeof(struct dev_to_host_fis)); | |
1691 | tstat->buf_valid_size = sizeof(*resp); | |
9dc9fd94 S |
1692 | if (unlikely(err)) { |
1693 | if (unlikely(err & CMD_ISS_STPD)) | |
1694 | stat = SAS_OPEN_REJECT; | |
1695 | else | |
1696 | stat = SAS_PROTO_RESPONSE; | |
1697 | } | |
1698 | ||
20b09c29 | 1699 | return stat; |
8f261aaf KW |
1700 | } |
1701 | ||
a4632aae XY |
1702 | void mvs_set_sense(u8 *buffer, int len, int d_sense, |
1703 | int key, int asc, int ascq) | |
1704 | { | |
1705 | memset(buffer, 0, len); | |
1706 | ||
1707 | if (d_sense) { | |
1708 | /* Descriptor format */ | |
1709 | if (len < 4) { | |
1710 | mv_printk("Length %d of sense buffer too small to " | |
1711 | "fit sense %x:%x:%x", len, key, asc, ascq); | |
1712 | } | |
1713 | ||
1714 | buffer[0] = 0x72; /* Response Code */ | |
1715 | if (len > 1) | |
1716 | buffer[1] = key; /* Sense Key */ | |
1717 | if (len > 2) | |
1718 | buffer[2] = asc; /* ASC */ | |
1719 | if (len > 3) | |
1720 | buffer[3] = ascq; /* ASCQ */ | |
1721 | } else { | |
1722 | if (len < 14) { | |
1723 | mv_printk("Length %d of sense buffer too small to " | |
1724 | "fit sense %x:%x:%x", len, key, asc, ascq); | |
1725 | } | |
1726 | ||
1727 | buffer[0] = 0x70; /* Response Code */ | |
1728 | if (len > 2) | |
1729 | buffer[2] = key; /* Sense Key */ | |
1730 | if (len > 7) | |
1731 | buffer[7] = 0x0a; /* Additional Sense Length */ | |
1732 | if (len > 12) | |
1733 | buffer[12] = asc; /* ASC */ | |
1734 | if (len > 13) | |
1735 | buffer[13] = ascq; /* ASCQ */ | |
1736 | } | |
1737 | ||
1738 | return; | |
1739 | } | |
1740 | ||
1741 | void mvs_fill_ssp_resp_iu(struct ssp_response_iu *iu, | |
1742 | u8 key, u8 asc, u8 asc_q) | |
1743 | { | |
1744 | iu->datapres = 2; | |
1745 | iu->response_data_len = 0; | |
1746 | iu->sense_data_len = 17; | |
1747 | iu->status = 02; | |
1748 | mvs_set_sense(iu->sense_data, 17, 0, | |
1749 | key, asc, asc_q); | |
1750 | } | |
1751 | ||
20b09c29 AY |
1752 | static int mvs_slot_err(struct mvs_info *mvi, struct sas_task *task, |
1753 | u32 slot_idx) | |
8f261aaf | 1754 | { |
20b09c29 AY |
1755 | struct mvs_slot_info *slot = &mvi->slot_info[slot_idx]; |
1756 | int stat; | |
84fbd0ce | 1757 | u32 err_dw0 = le32_to_cpu(*(u32 *)slot->response); |
a4632aae | 1758 | u32 err_dw1 = le32_to_cpu(*((u32 *)slot->response + 1)); |
20b09c29 AY |
1759 | u32 tfs = 0; |
1760 | enum mvs_port_type type = PORT_TYPE_SAS; | |
8f261aaf | 1761 | |
20b09c29 AY |
1762 | if (err_dw0 & CMD_ISS_STPD) |
1763 | MVS_CHIP_DISP->issue_stop(mvi, type, tfs); | |
1764 | ||
1765 | MVS_CHIP_DISP->command_active(mvi, slot_idx); | |
b5762948 | 1766 | |
df64d3ca | 1767 | stat = SAM_STAT_CHECK_CONDITION; |
dd4969a8 | 1768 | switch (task->task_proto) { |
dd4969a8 | 1769 | case SAS_PROTOCOL_SSP: |
a4632aae | 1770 | { |
20b09c29 | 1771 | stat = SAS_ABORTED_TASK; |
a4632aae XY |
1772 | if ((err_dw0 & NO_DEST) || err_dw1 & bit(31)) { |
1773 | struct ssp_response_iu *iu = slot->response + | |
1774 | sizeof(struct mvs_err_info); | |
1775 | mvs_fill_ssp_resp_iu(iu, NOT_READY, 0x04, 01); | |
1776 | sas_ssp_task_response(mvi->dev, task, iu); | |
1777 | stat = SAM_STAT_CHECK_CONDITION; | |
1778 | } | |
1779 | if (err_dw1 & bit(31)) | |
1780 | mv_printk("reuse same slot, retry command.\n"); | |
20b09c29 | 1781 | break; |
a4632aae | 1782 | } |
20b09c29 | 1783 | case SAS_PROTOCOL_SMP: |
df64d3ca | 1784 | stat = SAM_STAT_CHECK_CONDITION; |
dd4969a8 | 1785 | break; |
20b09c29 | 1786 | |
dd4969a8 JG |
1787 | case SAS_PROTOCOL_SATA: |
1788 | case SAS_PROTOCOL_STP: | |
20b09c29 AY |
1789 | case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: |
1790 | { | |
20b09c29 | 1791 | task->ata_task.use_ncq = 0; |
84fbd0ce | 1792 | stat = SAS_PROTO_RESPONSE; |
9dc9fd94 | 1793 | mvs_sata_done(mvi, task, slot_idx, err_dw0); |
dd4969a8 | 1794 | } |
20b09c29 | 1795 | break; |
dd4969a8 JG |
1796 | default: |
1797 | break; | |
1798 | } | |
1799 | ||
20b09c29 | 1800 | return stat; |
e9ff91b6 KW |
1801 | } |
1802 | ||
20b09c29 | 1803 | int mvs_slot_complete(struct mvs_info *mvi, u32 rx_desc, u32 flags) |
b5762948 | 1804 | { |
20b09c29 AY |
1805 | u32 slot_idx = rx_desc & RXQ_SLOT_MASK; |
1806 | struct mvs_slot_info *slot = &mvi->slot_info[slot_idx]; | |
1807 | struct sas_task *task = slot->task; | |
1808 | struct mvs_device *mvi_dev = NULL; | |
1809 | struct task_status_struct *tstat; | |
9dc9fd94 S |
1810 | struct domain_device *dev; |
1811 | u32 aborted; | |
20b09c29 | 1812 | |
20b09c29 AY |
1813 | void *to; |
1814 | enum exec_status sts; | |
1815 | ||
9dc9fd94 | 1816 | if (unlikely(!task || !task->lldd_task || !task->dev)) |
20b09c29 AY |
1817 | return -1; |
1818 | ||
1819 | tstat = &task->task_status; | |
9dc9fd94 S |
1820 | dev = task->dev; |
1821 | mvi_dev = dev->lldd_dev; | |
b5762948 | 1822 | |
20b09c29 AY |
1823 | spin_lock(&task->task_state_lock); |
1824 | task->task_state_flags &= | |
1825 | ~(SAS_TASK_STATE_PENDING | SAS_TASK_AT_INITIATOR); | |
1826 | task->task_state_flags |= SAS_TASK_STATE_DONE; | |
1827 | /* race condition*/ | |
1828 | aborted = task->task_state_flags & SAS_TASK_STATE_ABORTED; | |
1829 | spin_unlock(&task->task_state_lock); | |
1830 | ||
1831 | memset(tstat, 0, sizeof(*tstat)); | |
1832 | tstat->resp = SAS_TASK_COMPLETE; | |
1833 | ||
1834 | if (unlikely(aborted)) { | |
1835 | tstat->stat = SAS_ABORTED_TASK; | |
9dc9fd94 S |
1836 | if (mvi_dev && mvi_dev->running_req) |
1837 | mvi_dev->running_req--; | |
20b09c29 AY |
1838 | if (sas_protocol_ata(task->task_proto)) |
1839 | mvs_free_reg_set(mvi, mvi_dev); | |
1840 | ||
1841 | mvs_slot_task_free(mvi, task, slot, slot_idx); | |
1842 | return -1; | |
b5762948 JG |
1843 | } |
1844 | ||
e144f7ef | 1845 | /* when no device attaching, go ahead and complete by error handling*/ |
9dc9fd94 S |
1846 | if (unlikely(!mvi_dev || flags)) { |
1847 | if (!mvi_dev) | |
1848 | mv_dprintk("port has not device.\n"); | |
20b09c29 AY |
1849 | tstat->stat = SAS_PHY_DOWN; |
1850 | goto out; | |
1851 | } | |
b5762948 | 1852 | |
20b09c29 AY |
1853 | /* error info record present */ |
1854 | if (unlikely((rx_desc & RXQ_ERR) && (*(u64 *) slot->response))) { | |
84fbd0ce XY |
1855 | mv_dprintk("port %d slot %d rx_desc %X has error info" |
1856 | "%016llX.\n", slot->port->sas_port.id, slot_idx, | |
1857 | rx_desc, (u64)(*(u64 *)slot->response)); | |
20b09c29 | 1858 | tstat->stat = mvs_slot_err(mvi, task, slot_idx); |
9dc9fd94 | 1859 | tstat->resp = SAS_TASK_COMPLETE; |
20b09c29 | 1860 | goto out; |
b5762948 JG |
1861 | } |
1862 | ||
20b09c29 AY |
1863 | switch (task->task_proto) { |
1864 | case SAS_PROTOCOL_SSP: | |
1865 | /* hw says status == 0, datapres == 0 */ | |
1866 | if (rx_desc & RXQ_GOOD) { | |
df64d3ca | 1867 | tstat->stat = SAM_STAT_GOOD; |
20b09c29 AY |
1868 | tstat->resp = SAS_TASK_COMPLETE; |
1869 | } | |
1870 | /* response frame present */ | |
1871 | else if (rx_desc & RXQ_RSP) { | |
1872 | struct ssp_response_iu *iu = slot->response + | |
1873 | sizeof(struct mvs_err_info); | |
1874 | sas_ssp_task_response(mvi->dev, task, iu); | |
1875 | } else | |
df64d3ca | 1876 | tstat->stat = SAM_STAT_CHECK_CONDITION; |
20b09c29 | 1877 | break; |
b5762948 | 1878 | |
20b09c29 AY |
1879 | case SAS_PROTOCOL_SMP: { |
1880 | struct scatterlist *sg_resp = &task->smp_task.smp_resp; | |
df64d3ca | 1881 | tstat->stat = SAM_STAT_GOOD; |
77dfce07 | 1882 | to = kmap_atomic(sg_page(sg_resp)); |
20b09c29 AY |
1883 | memcpy(to + sg_resp->offset, |
1884 | slot->response + sizeof(struct mvs_err_info), | |
1885 | sg_dma_len(sg_resp)); | |
77dfce07 | 1886 | kunmap_atomic(to); |
20b09c29 AY |
1887 | break; |
1888 | } | |
8f261aaf | 1889 | |
20b09c29 AY |
1890 | case SAS_PROTOCOL_SATA: |
1891 | case SAS_PROTOCOL_STP: | |
1892 | case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: { | |
1893 | tstat->stat = mvs_sata_done(mvi, task, slot_idx, 0); | |
1894 | break; | |
1895 | } | |
b5762948 | 1896 | |
20b09c29 | 1897 | default: |
df64d3ca | 1898 | tstat->stat = SAM_STAT_CHECK_CONDITION; |
20b09c29 AY |
1899 | break; |
1900 | } | |
9dc9fd94 S |
1901 | if (!slot->port->port_attached) { |
1902 | mv_dprintk("port %d has removed.\n", slot->port->sas_port.id); | |
1903 | tstat->stat = SAS_PHY_DOWN; | |
1904 | } | |
1905 | ||
b5762948 | 1906 | |
20b09c29 | 1907 | out: |
9dc9fd94 S |
1908 | if (mvi_dev && mvi_dev->running_req) { |
1909 | mvi_dev->running_req--; | |
1910 | if (sas_protocol_ata(task->task_proto) && !mvi_dev->running_req) | |
0f980a87 AY |
1911 | mvs_free_reg_set(mvi, mvi_dev); |
1912 | } | |
20b09c29 AY |
1913 | mvs_slot_task_free(mvi, task, slot, slot_idx); |
1914 | sts = tstat->stat; | |
8f261aaf | 1915 | |
20b09c29 AY |
1916 | spin_unlock(&mvi->lock); |
1917 | if (task->task_done) | |
1918 | task->task_done(task); | |
84fbd0ce | 1919 | |
20b09c29 | 1920 | spin_lock(&mvi->lock); |
b5762948 | 1921 | |
20b09c29 AY |
1922 | return sts; |
1923 | } | |
b5762948 | 1924 | |
9dc9fd94 | 1925 | void mvs_do_release_task(struct mvs_info *mvi, |
20b09c29 AY |
1926 | int phy_no, struct domain_device *dev) |
1927 | { | |
9dc9fd94 | 1928 | u32 slot_idx; |
20b09c29 AY |
1929 | struct mvs_phy *phy; |
1930 | struct mvs_port *port; | |
1931 | struct mvs_slot_info *slot, *slot2; | |
b5762948 | 1932 | |
20b09c29 AY |
1933 | phy = &mvi->phy[phy_no]; |
1934 | port = phy->port; | |
1935 | if (!port) | |
1936 | return; | |
9dc9fd94 S |
1937 | /* clean cmpl queue in case request is already finished */ |
1938 | mvs_int_rx(mvi, false); | |
1939 | ||
1940 | ||
b5762948 | 1941 | |
20b09c29 AY |
1942 | list_for_each_entry_safe(slot, slot2, &port->list, entry) { |
1943 | struct sas_task *task; | |
1944 | slot_idx = (u32) (slot - mvi->slot_info); | |
1945 | task = slot->task; | |
b5762948 | 1946 | |
20b09c29 AY |
1947 | if (dev && task->dev != dev) |
1948 | continue; | |
8f261aaf | 1949 | |
20b09c29 AY |
1950 | mv_printk("Release slot [%x] tag[%x], task [%p]:\n", |
1951 | slot_idx, slot->slot_tag, task); | |
9dc9fd94 | 1952 | MVS_CHIP_DISP->command_active(mvi, slot_idx); |
b5762948 | 1953 | |
20b09c29 | 1954 | mvs_slot_complete(mvi, slot_idx, 1); |
b5762948 | 1955 | } |
20b09c29 | 1956 | } |
b5762948 | 1957 | |
9dc9fd94 S |
1958 | void mvs_release_task(struct mvs_info *mvi, |
1959 | struct domain_device *dev) | |
1960 | { | |
1961 | int i, phyno[WIDE_PORT_MAX_PHY], num; | |
9dc9fd94 S |
1962 | num = mvs_find_dev_phyno(dev, phyno); |
1963 | for (i = 0; i < num; i++) | |
1964 | mvs_do_release_task(mvi, phyno[i], dev); | |
1965 | } | |
1966 | ||
20b09c29 AY |
1967 | static void mvs_phy_disconnected(struct mvs_phy *phy) |
1968 | { | |
1969 | phy->phy_attached = 0; | |
1970 | phy->att_dev_info = 0; | |
1971 | phy->att_dev_sas_addr = 0; | |
1972 | } | |
1973 | ||
1974 | static void mvs_work_queue(struct work_struct *work) | |
1975 | { | |
1976 | struct delayed_work *dw = container_of(work, struct delayed_work, work); | |
1977 | struct mvs_wq *mwq = container_of(dw, struct mvs_wq, work_q); | |
1978 | struct mvs_info *mvi = mwq->mvi; | |
1979 | unsigned long flags; | |
a4632aae XY |
1980 | u32 phy_no = (unsigned long) mwq->data; |
1981 | struct sas_ha_struct *sas_ha = mvi->sas; | |
1982 | struct mvs_phy *phy = &mvi->phy[phy_no]; | |
1983 | struct asd_sas_phy *sas_phy = &phy->sas_phy; | |
b5762948 | 1984 | |
20b09c29 AY |
1985 | spin_lock_irqsave(&mvi->lock, flags); |
1986 | if (mwq->handler & PHY_PLUG_EVENT) { | |
20b09c29 AY |
1987 | |
1988 | if (phy->phy_event & PHY_PLUG_OUT) { | |
1989 | u32 tmp; | |
1990 | struct sas_identify_frame *id; | |
1991 | id = (struct sas_identify_frame *)phy->frame_rcvd; | |
1992 | tmp = MVS_CHIP_DISP->read_phy_ctl(mvi, phy_no); | |
1993 | phy->phy_event &= ~PHY_PLUG_OUT; | |
1994 | if (!(tmp & PHY_READY_MASK)) { | |
1995 | sas_phy_disconnected(sas_phy); | |
1996 | mvs_phy_disconnected(phy); | |
1997 | sas_ha->notify_phy_event(sas_phy, | |
1998 | PHYE_LOSS_OF_SIGNAL); | |
1999 | mv_dprintk("phy%d Removed Device\n", phy_no); | |
2000 | } else { | |
2001 | MVS_CHIP_DISP->detect_porttype(mvi, phy_no); | |
2002 | mvs_update_phyinfo(mvi, phy_no, 1); | |
2003 | mvs_bytes_dmaed(mvi, phy_no); | |
2004 | mvs_port_notify_formed(sas_phy, 0); | |
2005 | mv_dprintk("phy%d Attached Device\n", phy_no); | |
2006 | } | |
2007 | } | |
a4632aae XY |
2008 | } else if (mwq->handler & EXP_BRCT_CHG) { |
2009 | phy->phy_event &= ~EXP_BRCT_CHG; | |
2010 | sas_ha->notify_port_event(sas_phy, | |
2011 | PORTE_BROADCAST_RCVD); | |
2012 | mv_dprintk("phy%d Got Broadcast Change\n", phy_no); | |
20b09c29 AY |
2013 | } |
2014 | list_del(&mwq->entry); | |
2015 | spin_unlock_irqrestore(&mvi->lock, flags); | |
2016 | kfree(mwq); | |
2017 | } | |
8f261aaf | 2018 | |
20b09c29 AY |
2019 | static int mvs_handle_event(struct mvs_info *mvi, void *data, int handler) |
2020 | { | |
2021 | struct mvs_wq *mwq; | |
2022 | int ret = 0; | |
2023 | ||
2024 | mwq = kmalloc(sizeof(struct mvs_wq), GFP_ATOMIC); | |
2025 | if (mwq) { | |
2026 | mwq->mvi = mvi; | |
2027 | mwq->data = data; | |
2028 | mwq->handler = handler; | |
2029 | MV_INIT_DELAYED_WORK(&mwq->work_q, mvs_work_queue, mwq); | |
2030 | list_add_tail(&mwq->entry, &mvi->wq_list); | |
2031 | schedule_delayed_work(&mwq->work_q, HZ * 2); | |
2032 | } else | |
2033 | ret = -ENOMEM; | |
2034 | ||
2035 | return ret; | |
2036 | } | |
b5762948 | 2037 | |
20b09c29 AY |
2038 | static void mvs_sig_time_out(unsigned long tphy) |
2039 | { | |
2040 | struct mvs_phy *phy = (struct mvs_phy *)tphy; | |
2041 | struct mvs_info *mvi = phy->mvi; | |
2042 | u8 phy_no; | |
2043 | ||
2044 | for (phy_no = 0; phy_no < mvi->chip->n_phy; phy_no++) { | |
2045 | if (&mvi->phy[phy_no] == phy) { | |
2046 | mv_dprintk("Get signature time out, reset phy %d\n", | |
2047 | phy_no+mvi->id*mvi->chip->n_phy); | |
a4632aae | 2048 | MVS_CHIP_DISP->phy_reset(mvi, phy_no, MVS_HARD_RESET); |
20b09c29 | 2049 | } |
b5762948 | 2050 | } |
20b09c29 | 2051 | } |
b5762948 | 2052 | |
20b09c29 AY |
2053 | void mvs_int_port(struct mvs_info *mvi, int phy_no, u32 events) |
2054 | { | |
2055 | u32 tmp; | |
20b09c29 | 2056 | struct mvs_phy *phy = &mvi->phy[phy_no]; |
8f261aaf | 2057 | |
20b09c29 | 2058 | phy->irq_status = MVS_CHIP_DISP->read_port_irq_stat(mvi, phy_no); |
84fbd0ce XY |
2059 | MVS_CHIP_DISP->write_port_irq_stat(mvi, phy_no, phy->irq_status); |
2060 | mv_dprintk("phy %d ctrl sts=0x%08X.\n", phy_no+mvi->id*mvi->chip->n_phy, | |
20b09c29 | 2061 | MVS_CHIP_DISP->read_phy_ctl(mvi, phy_no)); |
84fbd0ce | 2062 | mv_dprintk("phy %d irq sts = 0x%08X\n", phy_no+mvi->id*mvi->chip->n_phy, |
20b09c29 | 2063 | phy->irq_status); |
8f261aaf | 2064 | |
20b09c29 AY |
2065 | /* |
2066 | * events is port event now , | |
2067 | * we need check the interrupt status which belongs to per port. | |
2068 | */ | |
b5762948 | 2069 | |
9dc9fd94 | 2070 | if (phy->irq_status & PHYEV_DCDR_ERR) { |
84fbd0ce | 2071 | mv_dprintk("phy %d STP decoding error.\n", |
9dc9fd94 S |
2072 | phy_no + mvi->id*mvi->chip->n_phy); |
2073 | } | |
20b09c29 AY |
2074 | |
2075 | if (phy->irq_status & PHYEV_POOF) { | |
84fbd0ce | 2076 | mdelay(500); |
20b09c29 AY |
2077 | if (!(phy->phy_event & PHY_PLUG_OUT)) { |
2078 | int dev_sata = phy->phy_type & PORT_TYPE_SATA; | |
2079 | int ready; | |
9dc9fd94 | 2080 | mvs_do_release_task(mvi, phy_no, NULL); |
20b09c29 | 2081 | phy->phy_event |= PHY_PLUG_OUT; |
9dc9fd94 | 2082 | MVS_CHIP_DISP->clear_srs_irq(mvi, 0, 1); |
20b09c29 AY |
2083 | mvs_handle_event(mvi, |
2084 | (void *)(unsigned long)phy_no, | |
2085 | PHY_PLUG_EVENT); | |
2086 | ready = mvs_is_phy_ready(mvi, phy_no); | |
20b09c29 AY |
2087 | if (ready || dev_sata) { |
2088 | if (MVS_CHIP_DISP->stp_reset) | |
2089 | MVS_CHIP_DISP->stp_reset(mvi, | |
2090 | phy_no); | |
2091 | else | |
2092 | MVS_CHIP_DISP->phy_reset(mvi, | |
a4632aae | 2093 | phy_no, MVS_SOFT_RESET); |
20b09c29 AY |
2094 | return; |
2095 | } | |
2096 | } | |
2097 | } | |
b5762948 | 2098 | |
20b09c29 AY |
2099 | if (phy->irq_status & PHYEV_COMWAKE) { |
2100 | tmp = MVS_CHIP_DISP->read_port_irq_mask(mvi, phy_no); | |
2101 | MVS_CHIP_DISP->write_port_irq_mask(mvi, phy_no, | |
2102 | tmp | PHYEV_SIG_FIS); | |
2103 | if (phy->timer.function == NULL) { | |
2104 | phy->timer.data = (unsigned long)phy; | |
2105 | phy->timer.function = mvs_sig_time_out; | |
84fbd0ce | 2106 | phy->timer.expires = jiffies + 5*HZ; |
20b09c29 AY |
2107 | add_timer(&phy->timer); |
2108 | } | |
2109 | } | |
2110 | if (phy->irq_status & (PHYEV_SIG_FIS | PHYEV_ID_DONE)) { | |
2111 | phy->phy_status = mvs_is_phy_ready(mvi, phy_no); | |
20b09c29 AY |
2112 | mv_dprintk("notify plug in on phy[%d]\n", phy_no); |
2113 | if (phy->phy_status) { | |
2114 | mdelay(10); | |
2115 | MVS_CHIP_DISP->detect_porttype(mvi, phy_no); | |
2116 | if (phy->phy_type & PORT_TYPE_SATA) { | |
2117 | tmp = MVS_CHIP_DISP->read_port_irq_mask( | |
2118 | mvi, phy_no); | |
2119 | tmp &= ~PHYEV_SIG_FIS; | |
2120 | MVS_CHIP_DISP->write_port_irq_mask(mvi, | |
2121 | phy_no, tmp); | |
2122 | } | |
2123 | mvs_update_phyinfo(mvi, phy_no, 0); | |
9dc9fd94 | 2124 | if (phy->phy_type & PORT_TYPE_SAS) { |
a4632aae | 2125 | MVS_CHIP_DISP->phy_reset(mvi, phy_no, MVS_PHY_TUNE); |
9dc9fd94 S |
2126 | mdelay(10); |
2127 | } | |
2128 | ||
20b09c29 AY |
2129 | mvs_bytes_dmaed(mvi, phy_no); |
2130 | /* whether driver is going to handle hot plug */ | |
2131 | if (phy->phy_event & PHY_PLUG_OUT) { | |
a4632aae | 2132 | mvs_port_notify_formed(&phy->sas_phy, 0); |
20b09c29 AY |
2133 | phy->phy_event &= ~PHY_PLUG_OUT; |
2134 | } | |
2135 | } else { | |
2136 | mv_dprintk("plugin interrupt but phy%d is gone\n", | |
2137 | phy_no + mvi->id*mvi->chip->n_phy); | |
2138 | } | |
2139 | } else if (phy->irq_status & PHYEV_BROAD_CH) { | |
84fbd0ce | 2140 | mv_dprintk("phy %d broadcast change.\n", |
20b09c29 | 2141 | phy_no + mvi->id*mvi->chip->n_phy); |
a4632aae XY |
2142 | mvs_handle_event(mvi, (void *)(unsigned long)phy_no, |
2143 | EXP_BRCT_CHG); | |
20b09c29 | 2144 | } |
b5762948 JG |
2145 | } |
2146 | ||
20b09c29 | 2147 | int mvs_int_rx(struct mvs_info *mvi, bool self_clear) |
b5762948 | 2148 | { |
20b09c29 AY |
2149 | u32 rx_prod_idx, rx_desc; |
2150 | bool attn = false; | |
b5762948 | 2151 | |
20b09c29 AY |
2152 | /* the first dword in the RX ring is special: it contains |
2153 | * a mirror of the hardware's RX producer index, so that | |
2154 | * we don't have to stall the CPU reading that register. | |
2155 | * The actual RX ring is offset by one dword, due to this. | |
2156 | */ | |
2157 | rx_prod_idx = mvi->rx_cons; | |
2158 | mvi->rx_cons = le32_to_cpu(mvi->rx[0]); | |
2159 | if (mvi->rx_cons == 0xfff) /* h/w hasn't touched RX ring yet */ | |
2160 | return 0; | |
b5762948 | 2161 | |
20b09c29 AY |
2162 | /* The CMPL_Q may come late, read from register and try again |
2163 | * note: if coalescing is enabled, | |
2164 | * it will need to read from register every time for sure | |
2165 | */ | |
2166 | if (unlikely(mvi->rx_cons == rx_prod_idx)) | |
2167 | mvi->rx_cons = MVS_CHIP_DISP->rx_update(mvi) & RX_RING_SZ_MASK; | |
2168 | ||
2169 | if (mvi->rx_cons == rx_prod_idx) | |
2170 | return 0; | |
2171 | ||
2172 | while (mvi->rx_cons != rx_prod_idx) { | |
2173 | /* increment our internal RX consumer pointer */ | |
2174 | rx_prod_idx = (rx_prod_idx + 1) & (MVS_RX_RING_SZ - 1); | |
2175 | rx_desc = le32_to_cpu(mvi->rx[rx_prod_idx + 1]); | |
2176 | ||
2177 | if (likely(rx_desc & RXQ_DONE)) | |
2178 | mvs_slot_complete(mvi, rx_desc, 0); | |
2179 | if (rx_desc & RXQ_ATTN) { | |
2180 | attn = true; | |
2181 | } else if (rx_desc & RXQ_ERR) { | |
2182 | if (!(rx_desc & RXQ_DONE)) | |
2183 | mvs_slot_complete(mvi, rx_desc, 0); | |
2184 | } else if (rx_desc & RXQ_SLOT_RESET) { | |
2185 | mvs_slot_free(mvi, rx_desc); | |
2186 | } | |
2187 | } | |
2188 | ||
2189 | if (attn && self_clear) | |
2190 | MVS_CHIP_DISP->int_full(mvi); | |
2191 | return 0; | |
b5762948 JG |
2192 | } |
2193 |