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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); | |
fca29703 AV |
66 | if (!IS_QLA24XX(ha) && !IS_QLA25XX(ha)) |
67 | free_pages((unsigned long)ha->fw_dump, | |
68 | ha->fw_dump_order); | |
8482e118 | 69 | |
70 | ha->fw_dump_reading = 0; | |
71 | ha->fw_dump_buffer = NULL; | |
72 | ha->fw_dump = NULL; | |
fca29703 | 73 | ha->fw_dumped = 0; |
8482e118 | 74 | } |
75 | break; | |
76 | case 1: | |
fca29703 | 77 | if ((ha->fw_dump || ha->fw_dumped) && !ha->fw_dump_reading) { |
8482e118 | 78 | ha->fw_dump_reading = 1; |
79 | ||
fca29703 AV |
80 | if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) |
81 | dump_size = FW_DUMP_SIZE_24XX; | |
82 | else { | |
83 | dump_size = FW_DUMP_SIZE_1M; | |
84 | if (ha->fw_memory_size < 0x20000) | |
85 | dump_size = FW_DUMP_SIZE_128K; | |
86 | else if (ha->fw_memory_size < 0x80000) | |
87 | dump_size = FW_DUMP_SIZE_512K; | |
88 | } | |
8482e118 | 89 | ha->fw_dump_buffer = (char *)vmalloc(dump_size); |
90 | if (ha->fw_dump_buffer == NULL) { | |
91 | qla_printk(KERN_WARNING, ha, | |
92 | "Unable to allocate memory for firmware " | |
93 | "dump buffer (%d).\n", dump_size); | |
94 | ||
95 | ha->fw_dump_reading = 0; | |
96 | return (count); | |
97 | } | |
98 | qla_printk(KERN_INFO, ha, | |
99 | "Firmware dump ready for read on (%ld).\n", | |
100 | ha->host_no); | |
101 | memset(ha->fw_dump_buffer, 0, dump_size); | |
abbd8870 | 102 | ha->isp_ops.ascii_fw_dump(ha); |
8482e118 | 103 | ha->fw_dump_buffer_len = strlen(ha->fw_dump_buffer); |
104 | } | |
105 | break; | |
106 | } | |
107 | return (count); | |
108 | } | |
109 | ||
110 | static struct bin_attribute sysfs_fw_dump_attr = { | |
111 | .attr = { | |
112 | .name = "fw_dump", | |
113 | .mode = S_IRUSR | S_IWUSR, | |
114 | .owner = THIS_MODULE, | |
115 | }, | |
116 | .size = 0, | |
117 | .read = qla2x00_sysfs_read_fw_dump, | |
118 | .write = qla2x00_sysfs_write_fw_dump, | |
119 | }; | |
120 | ||
121 | static ssize_t | |
122 | qla2x00_sysfs_read_nvram(struct kobject *kobj, char *buf, loff_t off, | |
123 | size_t count) | |
124 | { | |
125 | struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj, | |
126 | struct device, kobj))); | |
8482e118 | 127 | unsigned long flags; |
8482e118 | 128 | |
459c5378 | 129 | if (!capable(CAP_SYS_ADMIN) || off != 0 || count != ha->nvram_size) |
8482e118 | 130 | return 0; |
131 | ||
132 | /* Read NVRAM. */ | |
133 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
459c5378 AV |
134 | ha->isp_ops.read_nvram(ha, (uint8_t *)buf, ha->nvram_base, |
135 | ha->nvram_size); | |
8482e118 | 136 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
137 | ||
138 | return (count); | |
139 | } | |
140 | ||
141 | static ssize_t | |
142 | qla2x00_sysfs_write_nvram(struct kobject *kobj, char *buf, loff_t off, | |
143 | size_t count) | |
144 | { | |
145 | struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj, | |
146 | struct device, kobj))); | |
8482e118 | 147 | unsigned long flags; |
148 | uint16_t cnt; | |
8482e118 | 149 | |
459c5378 | 150 | if (!capable(CAP_SYS_ADMIN) || off != 0 || count != ha->nvram_size) |
8482e118 | 151 | return 0; |
152 | ||
153 | /* Checksum NVRAM. */ | |
459c5378 AV |
154 | if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) { |
155 | uint32_t *iter; | |
156 | uint32_t chksum; | |
157 | ||
158 | iter = (uint32_t *)buf; | |
159 | chksum = 0; | |
160 | for (cnt = 0; cnt < ((count >> 2) - 1); cnt++) | |
161 | chksum += le32_to_cpu(*iter++); | |
162 | chksum = ~chksum + 1; | |
163 | *iter = cpu_to_le32(chksum); | |
164 | } else { | |
165 | uint8_t *iter; | |
166 | uint8_t chksum; | |
167 | ||
168 | iter = (uint8_t *)buf; | |
169 | chksum = 0; | |
170 | for (cnt = 0; cnt < count - 1; cnt++) | |
171 | chksum += *iter++; | |
172 | chksum = ~chksum + 1; | |
173 | *iter = chksum; | |
174 | } | |
8482e118 | 175 | |
176 | /* Write NVRAM. */ | |
177 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
459c5378 | 178 | ha->isp_ops.write_nvram(ha, (uint8_t *)buf, ha->nvram_base, count); |
8482e118 | 179 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
180 | ||
181 | return (count); | |
182 | } | |
183 | ||
184 | static struct bin_attribute sysfs_nvram_attr = { | |
185 | .attr = { | |
186 | .name = "nvram", | |
187 | .mode = S_IRUSR | S_IWUSR, | |
188 | .owner = THIS_MODULE, | |
189 | }, | |
459c5378 | 190 | .size = 0, |
8482e118 | 191 | .read = qla2x00_sysfs_read_nvram, |
192 | .write = qla2x00_sysfs_write_nvram, | |
193 | }; | |
194 | ||
195 | void | |
196 | qla2x00_alloc_sysfs_attr(scsi_qla_host_t *ha) | |
197 | { | |
198 | struct Scsi_Host *host = ha->host; | |
199 | ||
200 | sysfs_create_bin_file(&host->shost_gendev.kobj, &sysfs_fw_dump_attr); | |
459c5378 | 201 | sysfs_nvram_attr.size = ha->nvram_size; |
8482e118 | 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); | |
8482e118 | 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 | ||
1c97a12a | 303 | struct fc_function_template qla2xxx_transport_functions = { |
8482e118 | 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 | ||
8482e118 | 325 | void |
326 | qla2x00_init_host_attr(scsi_qla_host_t *ha) | |
327 | { | |
328 | fc_host_node_name(ha->host) = | |
329 | be64_to_cpu(*(uint64_t *)ha->init_cb->node_name); | |
330 | fc_host_port_name(ha->host) = | |
331 | be64_to_cpu(*(uint64_t *)ha->init_cb->port_name); | |
332 | } |