8482e118 |
1 | /* |
2 | * QLOGIC LINUX SOFTWARE |
3 | * |
4 | * QLogic ISP2x00 device driver for Linux 2.6.x |
5 | * Copyright (C) 2003-2005 QLogic Corporation |
6 | * (www.qlogic.com) |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify it |
9 | * under the terms of the GNU General Public License as published by the |
10 | * Free Software Foundation; either version 2, or (at your option) any |
11 | * later version. |
12 | * |
13 | * This program is distributed in the hope that it will be useful, but |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
16 | * General Public License for more details. |
17 | * |
18 | */ |
19 | #include "qla_def.h" |
20 | |
7aaef27b |
21 | #include <linux/vmalloc.h> |
8482e118 |
22 | #include <scsi/scsi_transport_fc.h> |
23 | |
24 | /* SYSFS attributes --------------------------------------------------------- */ |
25 | |
26 | static ssize_t |
27 | qla2x00_sysfs_read_fw_dump(struct kobject *kobj, char *buf, loff_t off, |
28 | size_t count) |
29 | { |
30 | struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj, |
31 | struct device, kobj))); |
32 | |
33 | if (ha->fw_dump_reading == 0) |
34 | return 0; |
35 | if (off > ha->fw_dump_buffer_len) |
36 | return 0; |
37 | if (off + count > ha->fw_dump_buffer_len) |
38 | count = ha->fw_dump_buffer_len - off; |
39 | |
40 | memcpy(buf, &ha->fw_dump_buffer[off], count); |
41 | |
42 | return (count); |
43 | } |
44 | |
45 | static ssize_t |
46 | qla2x00_sysfs_write_fw_dump(struct kobject *kobj, char *buf, loff_t off, |
47 | size_t count) |
48 | { |
49 | struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj, |
50 | struct device, kobj))); |
51 | int reading; |
52 | uint32_t dump_size; |
53 | |
54 | if (off != 0) |
55 | return (0); |
56 | |
57 | reading = simple_strtol(buf, NULL, 10); |
58 | switch (reading) { |
59 | case 0: |
60 | if (ha->fw_dump_reading == 1) { |
61 | qla_printk(KERN_INFO, ha, |
62 | "Firmware dump cleared on (%ld).\n", |
63 | ha->host_no); |
64 | |
65 | vfree(ha->fw_dump_buffer); |
66 | free_pages((unsigned long)ha->fw_dump, |
67 | ha->fw_dump_order); |
68 | |
69 | ha->fw_dump_reading = 0; |
70 | ha->fw_dump_buffer = NULL; |
71 | ha->fw_dump = NULL; |
72 | } |
73 | break; |
74 | case 1: |
75 | if (ha->fw_dump != NULL && !ha->fw_dump_reading) { |
76 | ha->fw_dump_reading = 1; |
77 | |
78 | dump_size = FW_DUMP_SIZE_1M; |
79 | if (ha->fw_memory_size < 0x20000) |
80 | dump_size = FW_DUMP_SIZE_128K; |
81 | else if (ha->fw_memory_size < 0x80000) |
82 | dump_size = FW_DUMP_SIZE_512K; |
83 | ha->fw_dump_buffer = (char *)vmalloc(dump_size); |
84 | if (ha->fw_dump_buffer == NULL) { |
85 | qla_printk(KERN_WARNING, ha, |
86 | "Unable to allocate memory for firmware " |
87 | "dump buffer (%d).\n", dump_size); |
88 | |
89 | ha->fw_dump_reading = 0; |
90 | return (count); |
91 | } |
92 | qla_printk(KERN_INFO, ha, |
93 | "Firmware dump ready for read on (%ld).\n", |
94 | ha->host_no); |
95 | memset(ha->fw_dump_buffer, 0, dump_size); |
96 | if (IS_QLA2100(ha) || IS_QLA2200(ha)) |
97 | qla2100_ascii_fw_dump(ha); |
98 | else |
99 | qla2300_ascii_fw_dump(ha); |
100 | ha->fw_dump_buffer_len = strlen(ha->fw_dump_buffer); |
101 | } |
102 | break; |
103 | } |
104 | return (count); |
105 | } |
106 | |
107 | static struct bin_attribute sysfs_fw_dump_attr = { |
108 | .attr = { |
109 | .name = "fw_dump", |
110 | .mode = S_IRUSR | S_IWUSR, |
111 | .owner = THIS_MODULE, |
112 | }, |
113 | .size = 0, |
114 | .read = qla2x00_sysfs_read_fw_dump, |
115 | .write = qla2x00_sysfs_write_fw_dump, |
116 | }; |
117 | |
118 | static ssize_t |
119 | qla2x00_sysfs_read_nvram(struct kobject *kobj, char *buf, loff_t off, |
120 | size_t count) |
121 | { |
122 | struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj, |
123 | struct device, kobj))); |
124 | uint16_t *witer; |
125 | unsigned long flags; |
126 | uint16_t cnt; |
127 | |
128 | if (!capable(CAP_SYS_ADMIN) || off != 0 || count != sizeof(nvram_t)) |
129 | return 0; |
130 | |
131 | /* Read NVRAM. */ |
132 | spin_lock_irqsave(&ha->hardware_lock, flags); |
133 | qla2x00_lock_nvram_access(ha); |
134 | witer = (uint16_t *)buf; |
135 | for (cnt = 0; cnt < count / 2; cnt++) { |
136 | *witer = cpu_to_le16(qla2x00_get_nvram_word(ha, |
137 | cnt+ha->nvram_base)); |
138 | witer++; |
139 | } |
140 | qla2x00_unlock_nvram_access(ha); |
141 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
142 | |
143 | return (count); |
144 | } |
145 | |
146 | static ssize_t |
147 | qla2x00_sysfs_write_nvram(struct kobject *kobj, char *buf, loff_t off, |
148 | size_t count) |
149 | { |
150 | struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj, |
151 | struct device, kobj))); |
152 | uint8_t *iter; |
153 | uint16_t *witer; |
154 | unsigned long flags; |
155 | uint16_t cnt; |
156 | uint8_t chksum; |
157 | |
158 | if (!capable(CAP_SYS_ADMIN) || off != 0 || count != sizeof(nvram_t)) |
159 | return 0; |
160 | |
161 | /* Checksum NVRAM. */ |
162 | iter = (uint8_t *)buf; |
163 | chksum = 0; |
164 | for (cnt = 0; cnt < count - 1; cnt++) |
165 | chksum += *iter++; |
166 | chksum = ~chksum + 1; |
167 | *iter = chksum; |
168 | |
169 | /* Write NVRAM. */ |
170 | spin_lock_irqsave(&ha->hardware_lock, flags); |
171 | qla2x00_lock_nvram_access(ha); |
172 | qla2x00_release_nvram_protection(ha); |
173 | witer = (uint16_t *)buf; |
174 | for (cnt = 0; cnt < count / 2; cnt++) { |
175 | qla2x00_write_nvram_word(ha, cnt+ha->nvram_base, |
176 | cpu_to_le16(*witer)); |
177 | witer++; |
178 | } |
179 | qla2x00_unlock_nvram_access(ha); |
180 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
181 | |
182 | return (count); |
183 | } |
184 | |
185 | static struct bin_attribute sysfs_nvram_attr = { |
186 | .attr = { |
187 | .name = "nvram", |
188 | .mode = S_IRUSR | S_IWUSR, |
189 | .owner = THIS_MODULE, |
190 | }, |
191 | .size = sizeof(nvram_t), |
192 | .read = qla2x00_sysfs_read_nvram, |
193 | .write = qla2x00_sysfs_write_nvram, |
194 | }; |
195 | |
196 | void |
197 | qla2x00_alloc_sysfs_attr(scsi_qla_host_t *ha) |
198 | { |
199 | struct Scsi_Host *host = ha->host; |
200 | |
201 | sysfs_create_bin_file(&host->shost_gendev.kobj, &sysfs_fw_dump_attr); |
202 | sysfs_create_bin_file(&host->shost_gendev.kobj, &sysfs_nvram_attr); |
203 | } |
204 | |
205 | void |
206 | qla2x00_free_sysfs_attr(scsi_qla_host_t *ha) |
207 | { |
208 | struct Scsi_Host *host = ha->host; |
209 | |
210 | sysfs_remove_bin_file(&host->shost_gendev.kobj, &sysfs_fw_dump_attr); |
211 | sysfs_remove_bin_file(&host->shost_gendev.kobj, &sysfs_nvram_attr); |
212 | } |
213 | |
214 | /* Host attributes. */ |
215 | |
216 | static void |
217 | qla2x00_get_host_port_id(struct Scsi_Host *shost) |
218 | { |
219 | scsi_qla_host_t *ha = to_qla_host(shost); |
220 | |
221 | fc_host_port_id(shost) = ha->d_id.b.domain << 16 | |
222 | ha->d_id.b.area << 8 | ha->d_id.b.al_pa; |
223 | } |
224 | |
225 | static void |
226 | qla2x00_get_starget_node_name(struct scsi_target *starget) |
227 | { |
228 | struct Scsi_Host *host = dev_to_shost(starget->dev.parent); |
229 | scsi_qla_host_t *ha = to_qla_host(host); |
bdf79621 |
230 | fc_port_t *fcport; |
8482e118 |
231 | uint64_t node_name = 0; |
232 | |
bdf79621 |
233 | list_for_each_entry(fcport, &ha->fcports, list) { |
234 | if (starget->id == fcport->os_target_id) { |
235 | node_name = *(uint64_t *)fcport->node_name; |
236 | break; |
237 | } |
238 | } |
239 | |
240 | fc_starget_node_name(starget) = be64_to_cpu(node_name); |
8482e118 |
241 | } |
242 | |
243 | static void |
244 | qla2x00_get_starget_port_name(struct scsi_target *starget) |
245 | { |
246 | struct Scsi_Host *host = dev_to_shost(starget->dev.parent); |
247 | scsi_qla_host_t *ha = to_qla_host(host); |
bdf79621 |
248 | fc_port_t *fcport; |
8482e118 |
249 | uint64_t port_name = 0; |
250 | |
bdf79621 |
251 | list_for_each_entry(fcport, &ha->fcports, list) { |
252 | if (starget->id == fcport->os_target_id) { |
253 | port_name = *(uint64_t *)fcport->port_name; |
254 | break; |
255 | } |
256 | } |
257 | |
258 | fc_starget_port_name(starget) = be64_to_cpu(port_name); |
8482e118 |
259 | } |
260 | |
261 | static void |
262 | qla2x00_get_starget_port_id(struct scsi_target *starget) |
263 | { |
264 | struct Scsi_Host *host = dev_to_shost(starget->dev.parent); |
265 | scsi_qla_host_t *ha = to_qla_host(host); |
bdf79621 |
266 | fc_port_t *fcport; |
267 | uint32_t port_id = ~0U; |
268 | |
269 | list_for_each_entry(fcport, &ha->fcports, list) { |
270 | if (starget->id == fcport->os_target_id) { |
271 | port_id = fcport->d_id.b.domain << 16 | |
272 | fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa; |
273 | break; |
274 | } |
275 | } |
8482e118 |
276 | |
8482e118 |
277 | fc_starget_port_id(starget) = port_id; |
278 | } |
279 | |
280 | static void |
281 | qla2x00_get_rport_loss_tmo(struct fc_rport *rport) |
282 | { |
bdf79621 |
283 | struct Scsi_Host *host = rport_to_shost(rport); |
284 | scsi_qla_host_t *ha = to_qla_host(host); |
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285 | |
286 | rport->dev_loss_tmo = ha->port_down_retry_count + 5; |
287 | } |
288 | |
289 | static void |
290 | qla2x00_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) |
291 | { |
bdf79621 |
292 | struct Scsi_Host *host = rport_to_shost(rport); |
293 | scsi_qla_host_t *ha = to_qla_host(host); |
8482e118 |
294 | |
295 | if (timeout) |
296 | ha->port_down_retry_count = timeout; |
297 | else |
298 | ha->port_down_retry_count = 1; |
299 | |
300 | rport->dev_loss_tmo = ha->port_down_retry_count + 5; |
301 | } |
302 | |
303 | static struct fc_function_template qla2xxx_transport_functions = { |
304 | |
305 | .show_host_node_name = 1, |
306 | .show_host_port_name = 1, |
307 | .get_host_port_id = qla2x00_get_host_port_id, |
308 | .show_host_port_id = 1, |
309 | |
bdf79621 |
310 | .dd_fcrport_size = sizeof(struct fc_port *), |
8482e118 |
311 | |
312 | .get_starget_node_name = qla2x00_get_starget_node_name, |
313 | .show_starget_node_name = 1, |
314 | .get_starget_port_name = qla2x00_get_starget_port_name, |
315 | .show_starget_port_name = 1, |
316 | .get_starget_port_id = qla2x00_get_starget_port_id, |
317 | .show_starget_port_id = 1, |
318 | |
319 | .get_rport_dev_loss_tmo = qla2x00_get_rport_loss_tmo, |
320 | .set_rport_dev_loss_tmo = qla2x00_set_rport_loss_tmo, |
321 | .show_rport_dev_loss_tmo = 1, |
322 | |
323 | }; |
324 | |
325 | struct scsi_transport_template * |
326 | qla2x00_alloc_transport_tmpl(void) |
327 | { |
328 | return (fc_attach_transport(&qla2xxx_transport_functions)); |
329 | } |
330 | |
331 | void |
332 | qla2x00_init_host_attr(scsi_qla_host_t *ha) |
333 | { |
334 | fc_host_node_name(ha->host) = |
335 | be64_to_cpu(*(uint64_t *)ha->init_cb->node_name); |
336 | fc_host_port_name(ha->host) = |
337 | be64_to_cpu(*(uint64_t *)ha->init_cb->port_name); |
338 | } |