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authorLinus Torvalds <torvalds@linux-foundation.org>2015-09-11 21:15:18 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-11 21:15:18 -0400
commit8e78b7dc93c580c050435b0f88991c26e02166bc (patch)
tree3356cfe6423b049f2f4852bffb5a6324b0556dc1 /drivers/scsi
parent06a660ada2064bbdcd09aeb8173f2ad128c71978 (diff)
parent294ab783ad98066b87296db1311c7ba2a60206a5 (diff)
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull second round of SCSI updates from James Bottomley: "There's one late arriving patch here (added today), fixing a build issue which the scsi_dh patch set in here uncovered. Other than that, everything has been incubated in -next and the checkers for a week. The major pieces of this patch are a set patches facilitating better integration between scsi and scsi_dh (the device handling layer used by multi-path; all the dm parts are acked by Mike Snitzer). This also includes driver updates for mp3sas, scsi_debug and an assortment of bug fixes" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (50 commits) scsi_dh: fix randconfig build error scsi: fix scsi_error_handler vs. scsi_host_dev_release race fcoe: Convert use of __constant_htons to htons mpt2sas: setpci reset kernel oops fix pm80xx: Don't override ts->stat on IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY lpfc: Fix possible use-after-free and double free in lpfc_mbx_cmpl_rdp_page_a2() bfa: Fix incorrect de-reference of pointer bfa: Fix indentation scsi_transport_sas: Remove check for SAS expander when querying bay/enclosure IDs. scsi_debug: resp_request: remove unused variable scsi_debug: fix REPORT LUNS Well Known LU scsi_debug: schedule_resp fix input variable check scsi_debug: make dump_sector static scsi_debug: vfree is null safe so drop the check scsi_debug: use SCSI_W_LUN_REPORT_LUNS instead of SAM2_WLUN_REPORT_LUNS; scsi_debug: define pr_fmt() for consistent logging mpt2sas: Refcount fw_events and fix unsafe list usage mpt2sas: Refcount sas_device objects and fix unsafe list usage scsi_dh: return SCSI_DH_NOTCONN in scsi_dh_activate() scsi_dh: don't allow to detach device handlers at runtime ...
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/Makefile1
-rw-r--r--drivers/scsi/aic94xx/aic94xx_sds.c5
-rw-r--r--drivers/scsi/bfa/bfa_ioc.c24
-rw-r--r--drivers/scsi/device_handler/Kconfig2
-rw-r--r--drivers/scsi/device_handler/Makefile1
-rw-r--r--drivers/scsi/device_handler/scsi_dh.c621
-rw-r--r--drivers/scsi/device_handler/scsi_dh_alua.c31
-rw-r--r--drivers/scsi/device_handler/scsi_dh_emc.c58
-rw-r--r--drivers/scsi/device_handler/scsi_dh_hp_sw.c55
-rw-r--r--drivers/scsi/device_handler/scsi_dh_rdac.c80
-rw-r--r--drivers/scsi/fcoe/fcoe.c2
-rw-r--r--drivers/scsi/ipr.c8
-rw-r--r--drivers/scsi/lpfc/lpfc_mbox.c7
-rw-r--r--drivers/scsi/mpt2sas/mpt2sas_base.c6
-rw-r--r--drivers/scsi/mpt2sas/mpt2sas_base.h41
-rw-r--r--drivers/scsi/mpt2sas/mpt2sas_ctl.c38
-rw-r--r--drivers/scsi/mpt2sas/mpt2sas_scsih.c605
-rw-r--r--drivers/scsi/mpt2sas/mpt2sas_transport.c12
-rw-r--r--drivers/scsi/mpt3sas/mpi/mpi2.h8
-rw-r--r--drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h52
-rw-r--r--drivers/scsi/mpt3sas/mpi/mpi2_ioc.h4
-rw-r--r--drivers/scsi/mpt3sas/mpi/mpi2_tool.h4
-rw-r--r--drivers/scsi/mpt3sas/mpt3sas_base.c310
-rw-r--r--drivers/scsi/mpt3sas/mpt3sas_base.h57
-rw-r--r--drivers/scsi/mpt3sas/mpt3sas_scsih.c343
-rw-r--r--drivers/scsi/mpt3sas/mpt3sas_transport.c22
-rw-r--r--drivers/scsi/pm8001/pm8001_hwi.c1
-rw-r--r--drivers/scsi/pm8001/pm80xx_hwi.c1
-rw-r--r--drivers/scsi/scsi_debug.c158
-rw-r--r--drivers/scsi/scsi_dh.c437
-rw-r--r--drivers/scsi/scsi_error.c17
-rw-r--r--drivers/scsi/scsi_lib.c6
-rw-r--r--drivers/scsi/scsi_priv.h9
-rw-r--r--drivers/scsi/scsi_sysfs.c10
-rw-r--r--drivers/scsi/scsi_transport_sas.c10
35 files changed, 1832 insertions, 1214 deletions
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
index 471d08791766..1a8c9b53fafa 100644
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -172,6 +172,7 @@ scsi_mod-$(CONFIG_SYSCTL) += scsi_sysctl.o
172scsi_mod-$(CONFIG_SCSI_PROC_FS) += scsi_proc.o 172scsi_mod-$(CONFIG_SCSI_PROC_FS) += scsi_proc.o
173scsi_mod-y += scsi_trace.o scsi_logging.o 173scsi_mod-y += scsi_trace.o scsi_logging.o
174scsi_mod-$(CONFIG_PM) += scsi_pm.o 174scsi_mod-$(CONFIG_PM) += scsi_pm.o
175scsi_mod-$(CONFIG_SCSI_DH) += scsi_dh.o
175 176
176hv_storvsc-y := storvsc_drv.o 177hv_storvsc-y := storvsc_drv.o
177 178
diff --git a/drivers/scsi/aic94xx/aic94xx_sds.c b/drivers/scsi/aic94xx/aic94xx_sds.c
index edb43fda9f36..c831e30411fa 100644
--- a/drivers/scsi/aic94xx/aic94xx_sds.c
+++ b/drivers/scsi/aic94xx/aic94xx_sds.c
@@ -983,7 +983,7 @@ static int asd_process_ctrl_a_user(struct asd_ha_struct *asd_ha,
983{ 983{
984 int err, i; 984 int err, i;
985 u32 offs, size; 985 u32 offs, size;
986 struct asd_ll_el *el; 986 struct asd_ll_el *el = NULL;
987 struct asd_ctrla_phy_settings *ps; 987 struct asd_ctrla_phy_settings *ps;
988 struct asd_ctrla_phy_settings dflt_ps; 988 struct asd_ctrla_phy_settings dflt_ps;
989 989
@@ -1004,6 +1004,7 @@ static int asd_process_ctrl_a_user(struct asd_ha_struct *asd_ha,
1004 1004
1005 size = sizeof(struct asd_ctrla_phy_settings); 1005 size = sizeof(struct asd_ctrla_phy_settings);
1006 ps = &dflt_ps; 1006 ps = &dflt_ps;
1007 goto out_process;
1007 } 1008 }
1008 1009
1009 if (size == 0) 1010 if (size == 0)
@@ -1028,7 +1029,7 @@ static int asd_process_ctrl_a_user(struct asd_ha_struct *asd_ha,
1028 ASD_DPRINTK("couldn't find ctrla phy settings struct\n"); 1029 ASD_DPRINTK("couldn't find ctrla phy settings struct\n");
1029 goto out2; 1030 goto out2;
1030 } 1031 }
1031 1032out_process:
1032 err = asd_process_ctrla_phy_settings(asd_ha, ps); 1033 err = asd_process_ctrla_phy_settings(asd_ha, ps);
1033 if (err) { 1034 if (err) {
1034 ASD_DPRINTK("couldn't process ctrla phy settings\n"); 1035 ASD_DPRINTK("couldn't process ctrla phy settings\n");
diff --git a/drivers/scsi/bfa/bfa_ioc.c b/drivers/scsi/bfa/bfa_ioc.c
index 315d6d6dcfc8..98f7e8cca52d 100644
--- a/drivers/scsi/bfa/bfa_ioc.c
+++ b/drivers/scsi/bfa/bfa_ioc.c
@@ -3665,19 +3665,19 @@ bfa_cb_sfp_state_query(struct bfa_sfp_s *sfp)
3665 if (sfp->state_query_cbfn) 3665 if (sfp->state_query_cbfn)
3666 sfp->state_query_cbfn(sfp->state_query_cbarg, 3666 sfp->state_query_cbfn(sfp->state_query_cbarg,
3667 sfp->status); 3667 sfp->status);
3668 sfp->media = NULL; 3668 sfp->media = NULL;
3669 } 3669 }
3670 3670
3671 if (sfp->portspeed) { 3671 if (sfp->portspeed) {
3672 sfp->status = bfa_sfp_speed_valid(sfp, sfp->portspeed); 3672 sfp->status = bfa_sfp_speed_valid(sfp, sfp->portspeed);
3673 if (sfp->state_query_cbfn) 3673 if (sfp->state_query_cbfn)
3674 sfp->state_query_cbfn(sfp->state_query_cbarg, 3674 sfp->state_query_cbfn(sfp->state_query_cbarg,
3675 sfp->status); 3675 sfp->status);
3676 sfp->portspeed = BFA_PORT_SPEED_UNKNOWN; 3676 sfp->portspeed = BFA_PORT_SPEED_UNKNOWN;
3677 } 3677 }
3678 3678
3679 sfp->state_query_lock = 0; 3679 sfp->state_query_lock = 0;
3680 sfp->state_query_cbfn = NULL; 3680 sfp->state_query_cbfn = NULL;
3681} 3681}
3682 3682
3683/* 3683/*
@@ -3878,7 +3878,7 @@ bfa_sfp_show_comp(struct bfa_sfp_s *sfp, struct bfi_mbmsg_s *msg)
3878 bfa_trc(sfp, sfp->data_valid); 3878 bfa_trc(sfp, sfp->data_valid);
3879 if (sfp->data_valid) { 3879 if (sfp->data_valid) {
3880 u32 size = sizeof(struct sfp_mem_s); 3880 u32 size = sizeof(struct sfp_mem_s);
3881 u8 *des = (u8 *) &(sfp->sfpmem); 3881 u8 *des = (u8 *)(sfp->sfpmem);
3882 memcpy(des, sfp->dbuf_kva, size); 3882 memcpy(des, sfp->dbuf_kva, size);
3883 } 3883 }
3884 /* 3884 /*
diff --git a/drivers/scsi/device_handler/Kconfig b/drivers/scsi/device_handler/Kconfig
index 69abd0ad48e2..e5647d59224f 100644
--- a/drivers/scsi/device_handler/Kconfig
+++ b/drivers/scsi/device_handler/Kconfig
@@ -3,7 +3,7 @@
3# 3#
4 4
5menuconfig SCSI_DH 5menuconfig SCSI_DH
6 tristate "SCSI Device Handlers" 6 bool "SCSI Device Handlers"
7 depends on SCSI 7 depends on SCSI
8 default n 8 default n
9 help 9 help
diff --git a/drivers/scsi/device_handler/Makefile b/drivers/scsi/device_handler/Makefile
index e1d2ea083e15..09866c50fbb4 100644
--- a/drivers/scsi/device_handler/Makefile
+++ b/drivers/scsi/device_handler/Makefile
@@ -1,7 +1,6 @@
1# 1#
2# SCSI Device Handler 2# SCSI Device Handler
3# 3#
4obj-$(CONFIG_SCSI_DH) += scsi_dh.o
5obj-$(CONFIG_SCSI_DH_RDAC) += scsi_dh_rdac.o 4obj-$(CONFIG_SCSI_DH_RDAC) += scsi_dh_rdac.o
6obj-$(CONFIG_SCSI_DH_HP_SW) += scsi_dh_hp_sw.o 5obj-$(CONFIG_SCSI_DH_HP_SW) += scsi_dh_hp_sw.o
7obj-$(CONFIG_SCSI_DH_EMC) += scsi_dh_emc.o 6obj-$(CONFIG_SCSI_DH_EMC) += scsi_dh_emc.o
diff --git a/drivers/scsi/device_handler/scsi_dh.c b/drivers/scsi/device_handler/scsi_dh.c
deleted file mode 100644
index 1efebc9eedfb..000000000000
--- a/drivers/scsi/device_handler/scsi_dh.c
+++ /dev/null
@@ -1,621 +0,0 @@
1/*
2 * SCSI device handler infrastruture.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License as published by the
6 * Free Software Foundation; either version 2 of the License, or (at your
7 * option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 *
18 * Copyright IBM Corporation, 2007
19 * Authors:
20 * Chandra Seetharaman <sekharan@us.ibm.com>
21 * Mike Anderson <andmike@linux.vnet.ibm.com>
22 */
23
24#include <linux/slab.h>
25#include <linux/module.h>
26#include <scsi/scsi_dh.h>
27#include "../scsi_priv.h"
28
29static DEFINE_SPINLOCK(list_lock);
30static LIST_HEAD(scsi_dh_list);
31
32static struct scsi_device_handler *get_device_handler(const char *name)
33{
34 struct scsi_device_handler *tmp, *found = NULL;
35
36 spin_lock(&list_lock);
37 list_for_each_entry(tmp, &scsi_dh_list, list) {
38 if (!strncmp(tmp->name, name, strlen(tmp->name))) {
39 found = tmp;
40 break;
41 }
42 }
43 spin_unlock(&list_lock);
44 return found;
45}
46
47/*
48 * device_handler_match_function - Match a device handler to a device
49 * @sdev - SCSI device to be tested
50 *
51 * Tests @sdev against the match function of all registered device_handler.
52 * Returns the found device handler or NULL if not found.
53 */
54static struct scsi_device_handler *
55device_handler_match_function(struct scsi_device *sdev)
56{
57 struct scsi_device_handler *tmp_dh, *found_dh = NULL;
58
59 spin_lock(&list_lock);
60 list_for_each_entry(tmp_dh, &scsi_dh_list, list) {
61 if (tmp_dh->match && tmp_dh->match(sdev)) {
62 found_dh = tmp_dh;
63 break;
64 }
65 }
66 spin_unlock(&list_lock);
67 return found_dh;
68}
69
70/*
71 * device_handler_match - Attach a device handler to a device
72 * @scsi_dh - The device handler to match against or NULL
73 * @sdev - SCSI device to be tested against @scsi_dh
74 *
75 * Tests @sdev against the device handler @scsi_dh or against
76 * all registered device_handler if @scsi_dh == NULL.
77 * Returns the found device handler or NULL if not found.
78 */
79static struct scsi_device_handler *
80device_handler_match(struct scsi_device_handler *scsi_dh,
81 struct scsi_device *sdev)
82{
83 struct scsi_device_handler *found_dh;
84
85 found_dh = device_handler_match_function(sdev);
86
87 if (scsi_dh && found_dh != scsi_dh)
88 found_dh = NULL;
89
90 return found_dh;
91}
92
93/*
94 * scsi_dh_handler_attach - Attach a device handler to a device
95 * @sdev - SCSI device the device handler should attach to
96 * @scsi_dh - The device handler to attach
97 */
98static int scsi_dh_handler_attach(struct scsi_device *sdev,
99 struct scsi_device_handler *scsi_dh)
100{
101 struct scsi_dh_data *d;
102
103 if (sdev->scsi_dh_data) {
104 if (sdev->scsi_dh_data->scsi_dh != scsi_dh)
105 return -EBUSY;
106
107 kref_get(&sdev->scsi_dh_data->kref);
108 return 0;
109 }
110
111 if (!try_module_get(scsi_dh->module))
112 return -EINVAL;
113
114 d = scsi_dh->attach(sdev);
115 if (IS_ERR(d)) {
116 sdev_printk(KERN_ERR, sdev, "%s: Attach failed (%ld)\n",
117 scsi_dh->name, PTR_ERR(d));
118 module_put(scsi_dh->module);
119 return PTR_ERR(d);
120 }
121
122 d->scsi_dh = scsi_dh;
123 kref_init(&d->kref);
124 d->sdev = sdev;
125
126 spin_lock_irq(sdev->request_queue->queue_lock);
127 sdev->scsi_dh_data = d;
128 spin_unlock_irq(sdev->request_queue->queue_lock);
129 return 0;
130}
131
132static void __detach_handler (struct kref *kref)
133{
134 struct scsi_dh_data *scsi_dh_data =
135 container_of(kref, struct scsi_dh_data, kref);
136 struct scsi_device_handler *scsi_dh = scsi_dh_data->scsi_dh;
137 struct scsi_device *sdev = scsi_dh_data->sdev;
138
139 scsi_dh->detach(sdev);
140
141 spin_lock_irq(sdev->request_queue->queue_lock);
142 sdev->scsi_dh_data = NULL;
143 spin_unlock_irq(sdev->request_queue->queue_lock);
144
145 sdev_printk(KERN_NOTICE, sdev, "%s: Detached\n", scsi_dh->name);
146 module_put(scsi_dh->module);
147}
148
149/*
150 * scsi_dh_handler_detach - Detach a device handler from a device
151 * @sdev - SCSI device the device handler should be detached from
152 * @scsi_dh - Device handler to be detached
153 *
154 * Detach from a device handler. If a device handler is specified,
155 * only detach if the currently attached handler matches @scsi_dh.
156 */
157static void scsi_dh_handler_detach(struct scsi_device *sdev,
158 struct scsi_device_handler *scsi_dh)
159{
160 if (!sdev->scsi_dh_data)
161 return;
162
163 if (scsi_dh && scsi_dh != sdev->scsi_dh_data->scsi_dh)
164 return;
165
166 if (!scsi_dh)
167 scsi_dh = sdev->scsi_dh_data->scsi_dh;
168
169 if (scsi_dh)
170 kref_put(&sdev->scsi_dh_data->kref, __detach_handler);
171}
172
173/*
174 * Functions for sysfs attribute 'dh_state'
175 */
176static ssize_t
177store_dh_state(struct device *dev, struct device_attribute *attr,
178 const char *buf, size_t count)
179{
180 struct scsi_device *sdev = to_scsi_device(dev);
181 struct scsi_device_handler *scsi_dh;
182 int err = -EINVAL;
183
184 if (sdev->sdev_state == SDEV_CANCEL ||
185 sdev->sdev_state == SDEV_DEL)
186 return -ENODEV;
187
188 if (!sdev->scsi_dh_data) {
189 /*
190 * Attach to a device handler
191 */
192 if (!(scsi_dh = get_device_handler(buf)))
193 return err;
194 err = scsi_dh_handler_attach(sdev, scsi_dh);
195 } else {
196 scsi_dh = sdev->scsi_dh_data->scsi_dh;
197 if (!strncmp(buf, "detach", 6)) {
198 /*
199 * Detach from a device handler
200 */
201 scsi_dh_handler_detach(sdev, scsi_dh);
202 err = 0;
203 } else if (!strncmp(buf, "activate", 8)) {
204 /*
205 * Activate a device handler
206 */
207 if (scsi_dh->activate)
208 err = scsi_dh->activate(sdev, NULL, NULL);
209 else
210 err = 0;
211 }
212 }
213
214 return err<0?err:count;
215}
216
217static ssize_t
218show_dh_state(struct device *dev, struct device_attribute *attr, char *buf)
219{
220 struct scsi_device *sdev = to_scsi_device(dev);
221
222 if (!sdev->scsi_dh_data)
223 return snprintf(buf, 20, "detached\n");
224
225 return snprintf(buf, 20, "%s\n", sdev->scsi_dh_data->scsi_dh->name);
226}
227
228static struct device_attribute scsi_dh_state_attr =
229 __ATTR(dh_state, S_IRUGO | S_IWUSR, show_dh_state,
230 store_dh_state);
231
232/*
233 * scsi_dh_sysfs_attr_add - Callback for scsi_init_dh
234 */
235static int scsi_dh_sysfs_attr_add(struct device *dev, void *data)
236{
237 struct scsi_device *sdev;
238 int err;
239
240 if (!scsi_is_sdev_device(dev))
241 return 0;
242
243 sdev = to_scsi_device(dev);
244
245 err = device_create_file(&sdev->sdev_gendev,
246 &scsi_dh_state_attr);
247
248 return 0;
249}
250
251/*
252 * scsi_dh_sysfs_attr_remove - Callback for scsi_exit_dh
253 */
254static int scsi_dh_sysfs_attr_remove(struct device *dev, void *data)
255{
256 struct scsi_device *sdev;
257
258 if (!scsi_is_sdev_device(dev))
259 return 0;
260
261 sdev = to_scsi_device(dev);
262
263 device_remove_file(&sdev->sdev_gendev,
264 &scsi_dh_state_attr);
265
266 return 0;
267}
268
269/*
270 * scsi_dh_notifier - notifier chain callback
271 */
272static int scsi_dh_notifier(struct notifier_block *nb,
273 unsigned long action, void *data)
274{
275 struct device *dev = data;
276 struct scsi_device *sdev;
277 int err = 0;
278 struct scsi_device_handler *devinfo = NULL;
279
280 if (!scsi_is_sdev_device(dev))
281 return 0;
282
283 sdev = to_scsi_device(dev);
284
285 if (action == BUS_NOTIFY_ADD_DEVICE) {
286 err = device_create_file(dev, &scsi_dh_state_attr);
287 /* don't care about err */
288 devinfo = device_handler_match(NULL, sdev);
289 if (devinfo)
290 err = scsi_dh_handler_attach(sdev, devinfo);
291 } else if (action == BUS_NOTIFY_DEL_DEVICE) {
292 device_remove_file(dev, &scsi_dh_state_attr);
293 scsi_dh_handler_detach(sdev, NULL);
294 }
295 return err;
296}
297
298/*
299 * scsi_dh_notifier_add - Callback for scsi_register_device_handler
300 */
301static int scsi_dh_notifier_add(struct device *dev, void *data)
302{
303 struct scsi_device_handler *scsi_dh = data;
304 struct scsi_device *sdev;
305
306 if (!scsi_is_sdev_device(dev))
307 return 0;
308
309 if (!get_device(dev))
310 return 0;
311
312 sdev = to_scsi_device(dev);
313
314 if (device_handler_match(scsi_dh, sdev))
315 scsi_dh_handler_attach(sdev, scsi_dh);
316
317 put_device(dev);
318
319 return 0;
320}
321
322/*
323 * scsi_dh_notifier_remove - Callback for scsi_unregister_device_handler
324 */
325static int scsi_dh_notifier_remove(struct device *dev, void *data)
326{
327 struct scsi_device_handler *scsi_dh = data;
328 struct scsi_device *sdev;
329
330 if (!scsi_is_sdev_device(dev))
331 return 0;
332
333 if (!get_device(dev))
334 return 0;
335
336 sdev = to_scsi_device(dev);
337
338 scsi_dh_handler_detach(sdev, scsi_dh);
339
340 put_device(dev);
341
342 return 0;
343}
344
345/*
346 * scsi_register_device_handler - register a device handler personality
347 * module.
348 * @scsi_dh - device handler to be registered.
349 *
350 * Returns 0 on success, -EBUSY if handler already registered.
351 */
352int scsi_register_device_handler(struct scsi_device_handler *scsi_dh)
353{
354
355 if (get_device_handler(scsi_dh->name))
356 return -EBUSY;
357
358 if (!scsi_dh->attach || !scsi_dh->detach)
359 return -EINVAL;
360
361 spin_lock(&list_lock);
362 list_add(&scsi_dh->list, &scsi_dh_list);
363 spin_unlock(&list_lock);
364
365 bus_for_each_dev(&scsi_bus_type, NULL, scsi_dh, scsi_dh_notifier_add);
366 printk(KERN_INFO "%s: device handler registered\n", scsi_dh->name);
367
368 return SCSI_DH_OK;
369}
370EXPORT_SYMBOL_GPL(scsi_register_device_handler);
371
372/*
373 * scsi_unregister_device_handler - register a device handler personality
374 * module.
375 * @scsi_dh - device handler to be unregistered.
376 *
377 * Returns 0 on success, -ENODEV if handler not registered.
378 */
379int scsi_unregister_device_handler(struct scsi_device_handler *scsi_dh)
380{
381
382 if (!get_device_handler(scsi_dh->name))
383 return -ENODEV;
384
385 bus_for_each_dev(&scsi_bus_type, NULL, scsi_dh,
386 scsi_dh_notifier_remove);
387
388 spin_lock(&list_lock);
389 list_del(&scsi_dh->list);
390 spin_unlock(&list_lock);
391 printk(KERN_INFO "%s: device handler unregistered\n", scsi_dh->name);
392
393 return SCSI_DH_OK;
394}
395EXPORT_SYMBOL_GPL(scsi_unregister_device_handler);
396
397/*
398 * scsi_dh_activate - activate the path associated with the scsi_device
399 * corresponding to the given request queue.
400 * Returns immediately without waiting for activation to be completed.
401 * @q - Request queue that is associated with the scsi_device to be
402 * activated.
403 * @fn - Function to be called upon completion of the activation.
404 * Function fn is called with data (below) and the error code.
405 * Function fn may be called from the same calling context. So,
406 * do not hold the lock in the caller which may be needed in fn.
407 * @data - data passed to the function fn upon completion.
408 *
409 */
410int scsi_dh_activate(struct request_queue *q, activate_complete fn, void *data)
411{
412 int err = 0;
413 unsigned long flags;
414 struct scsi_device *sdev;
415 struct scsi_device_handler *scsi_dh = NULL;
416 struct device *dev = NULL;
417
418 spin_lock_irqsave(q->queue_lock, flags);
419 sdev = q->queuedata;
420 if (!sdev) {
421 spin_unlock_irqrestore(q->queue_lock, flags);
422 err = SCSI_DH_NOSYS;
423 if (fn)
424 fn(data, err);
425 return err;
426 }
427
428 if (sdev->scsi_dh_data)
429 scsi_dh = sdev->scsi_dh_data->scsi_dh;
430 dev = get_device(&sdev->sdev_gendev);
431 if (!scsi_dh || !dev ||
432 sdev->sdev_state == SDEV_CANCEL ||
433 sdev->sdev_state == SDEV_DEL)
434 err = SCSI_DH_NOSYS;
435 if (sdev->sdev_state == SDEV_OFFLINE)
436 err = SCSI_DH_DEV_OFFLINED;
437 spin_unlock_irqrestore(q->queue_lock, flags);
438
439 if (err) {
440 if (fn)
441 fn(data, err);
442 goto out;
443 }
444
445 if (scsi_dh->activate)
446 err = scsi_dh->activate(sdev, fn, data);
447out:
448 put_device(dev);
449 return err;
450}
451EXPORT_SYMBOL_GPL(scsi_dh_activate);
452
453/*
454 * scsi_dh_set_params - set the parameters for the device as per the
455 * string specified in params.
456 * @q - Request queue that is associated with the scsi_device for
457 * which the parameters to be set.
458 * @params - parameters in the following format
459 * "no_of_params\0param1\0param2\0param3\0...\0"
460 * for example, string for 2 parameters with value 10 and 21
461 * is specified as "2\010\021\0".
462 */
463int scsi_dh_set_params(struct request_queue *q, const char *params)
464{
465 int err = -SCSI_DH_NOSYS;
466 unsigned long flags;
467 struct scsi_device *sdev;
468 struct scsi_device_handler *scsi_dh = NULL;
469
470 spin_lock_irqsave(q->queue_lock, flags);
471 sdev = q->queuedata;
472 if (sdev && sdev->scsi_dh_data)
473 scsi_dh = sdev->scsi_dh_data->scsi_dh;
474 if (scsi_dh && scsi_dh->set_params && get_device(&sdev->sdev_gendev))
475 err = 0;
476 spin_unlock_irqrestore(q->queue_lock, flags);
477
478 if (err)
479 return err;
480 err = scsi_dh->set_params(sdev, params);
481 put_device(&sdev->sdev_gendev);
482 return err;
483}
484EXPORT_SYMBOL_GPL(scsi_dh_set_params);
485
486/*
487 * scsi_dh_handler_exist - Return TRUE(1) if a device handler exists for
488 * the given name. FALSE(0) otherwise.
489 * @name - name of the device handler.
490 */
491int scsi_dh_handler_exist(const char *name)
492{
493 return (get_device_handler(name) != NULL);
494}
495EXPORT_SYMBOL_GPL(scsi_dh_handler_exist);
496
497/*
498 * scsi_dh_attach - Attach device handler
499 * @q - Request queue that is associated with the scsi_device
500 * the handler should be attached to
501 * @name - name of the handler to attach
502 */
503int scsi_dh_attach(struct request_queue *q, const char *name)
504{
505 unsigned long flags;
506 struct scsi_device *sdev;
507 struct scsi_device_handler *scsi_dh;
508 int err = 0;
509
510 scsi_dh = get_device_handler(name);
511 if (!scsi_dh)
512 return -EINVAL;
513
514 spin_lock_irqsave(q->queue_lock, flags);
515 sdev = q->queuedata;
516 if (!sdev || !get_device(&sdev->sdev_gendev))
517 err = -ENODEV;
518 spin_unlock_irqrestore(q->queue_lock, flags);
519
520 if (!err) {
521 err = scsi_dh_handler_attach(sdev, scsi_dh);
522 put_device(&sdev->sdev_gendev);
523 }
524 return err;
525}
526EXPORT_SYMBOL_GPL(scsi_dh_attach);
527
528/*
529 * scsi_dh_detach - Detach device handler
530 * @q - Request queue that is associated with the scsi_device
531 * the handler should be detached from
532 *
533 * This function will detach the device handler only
534 * if the sdev is not part of the internal list, ie
535 * if it has been attached manually.
536 */
537void scsi_dh_detach(struct request_queue *q)
538{
539 unsigned long flags;
540 struct scsi_device *sdev;
541 struct scsi_device_handler *scsi_dh = NULL;
542
543 spin_lock_irqsave(q->queue_lock, flags);
544 sdev = q->queuedata;
545 if (!sdev || !get_device(&sdev->sdev_gendev))
546 sdev = NULL;
547 spin_unlock_irqrestore(q->queue_lock, flags);
548
549 if (!sdev)
550 return;
551
552 if (sdev->scsi_dh_data) {
553 scsi_dh = sdev->scsi_dh_data->scsi_dh;
554 scsi_dh_handler_detach(sdev, scsi_dh);
555 }
556 put_device(&sdev->sdev_gendev);
557}
558EXPORT_SYMBOL_GPL(scsi_dh_detach);
559
560/*
561 * scsi_dh_attached_handler_name - Get attached device handler's name
562 * @q - Request queue that is associated with the scsi_device
563 * that may have a device handler attached
564 * @gfp - the GFP mask used in the kmalloc() call when allocating memory
565 *
566 * Returns name of attached handler, NULL if no handler is attached.
567 * Caller must take care to free the returned string.
568 */
569const char *scsi_dh_attached_handler_name(struct request_queue *q, gfp_t gfp)
570{
571 unsigned long flags;
572 struct scsi_device *sdev;
573 const char *handler_name = NULL;
574
575 spin_lock_irqsave(q->queue_lock, flags);
576 sdev = q->queuedata;
577 if (!sdev || !get_device(&sdev->sdev_gendev))
578 sdev = NULL;
579 spin_unlock_irqrestore(q->queue_lock, flags);
580
581 if (!sdev)
582 return NULL;
583
584 if (sdev->scsi_dh_data)
585 handler_name = kstrdup(sdev->scsi_dh_data->scsi_dh->name, gfp);
586
587 put_device(&sdev->sdev_gendev);
588 return handler_name;
589}
590EXPORT_SYMBOL_GPL(scsi_dh_attached_handler_name);
591
592static struct notifier_block scsi_dh_nb = {
593 .notifier_call = scsi_dh_notifier
594};
595
596static int __init scsi_dh_init(void)
597{
598 int r;
599
600 r = bus_register_notifier(&scsi_bus_type, &scsi_dh_nb);
601
602 if (!r)
603 bus_for_each_dev(&scsi_bus_type, NULL, NULL,
604 scsi_dh_sysfs_attr_add);
605
606 return r;
607}
608
609static void __exit scsi_dh_exit(void)
610{
611 bus_for_each_dev(&scsi_bus_type, NULL, NULL,
612 scsi_dh_sysfs_attr_remove);
613 bus_unregister_notifier(&scsi_bus_type, &scsi_dh_nb);
614}
615
616module_init(scsi_dh_init);
617module_exit(scsi_dh_exit);
618
619MODULE_DESCRIPTION("SCSI device handler");
620MODULE_AUTHOR("Chandra Seetharaman <sekharan@us.ibm.com>");
621MODULE_LICENSE("GPL");
diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index 854b568b9931..cc2773b5de68 100644
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -62,7 +62,6 @@
62#define ALUA_OPTIMIZE_STPG 1 62#define ALUA_OPTIMIZE_STPG 1
63 63
64struct alua_dh_data { 64struct alua_dh_data {
65 struct scsi_dh_data dh_data;
66 int group_id; 65 int group_id;
67 int rel_port; 66 int rel_port;
68 int tpgs; 67 int tpgs;
@@ -86,11 +85,6 @@ struct alua_dh_data {
86static char print_alua_state(int); 85static char print_alua_state(int);
87static int alua_check_sense(struct scsi_device *, struct scsi_sense_hdr *); 86static int alua_check_sense(struct scsi_device *, struct scsi_sense_hdr *);
88 87
89static inline struct alua_dh_data *get_alua_data(struct scsi_device *sdev)
90{
91 return container_of(sdev->scsi_dh_data, struct alua_dh_data, dh_data);
92}
93
94static int realloc_buffer(struct alua_dh_data *h, unsigned len) 88static int realloc_buffer(struct alua_dh_data *h, unsigned len)
95{ 89{
96 if (h->buff && h->buff != h->inq) 90 if (h->buff && h->buff != h->inq)
@@ -708,7 +702,7 @@ out:
708 */ 702 */
709static int alua_set_params(struct scsi_device *sdev, const char *params) 703static int alua_set_params(struct scsi_device *sdev, const char *params)
710{ 704{
711 struct alua_dh_data *h = get_alua_data(sdev); 705 struct alua_dh_data *h = sdev->handler_data;
712 unsigned int optimize = 0, argc; 706 unsigned int optimize = 0, argc;
713 const char *p = params; 707 const char *p = params;
714 int result = SCSI_DH_OK; 708 int result = SCSI_DH_OK;
@@ -746,7 +740,7 @@ MODULE_PARM_DESC(optimize_stpg, "Allow use of a non-optimized path, rather than
746static int alua_activate(struct scsi_device *sdev, 740static int alua_activate(struct scsi_device *sdev,
747 activate_complete fn, void *data) 741 activate_complete fn, void *data)
748{ 742{
749 struct alua_dh_data *h = get_alua_data(sdev); 743 struct alua_dh_data *h = sdev->handler_data;
750 int err = SCSI_DH_OK; 744 int err = SCSI_DH_OK;
751 int stpg = 0; 745 int stpg = 0;
752 746
@@ -804,7 +798,7 @@ out:
804 */ 798 */
805static int alua_prep_fn(struct scsi_device *sdev, struct request *req) 799static int alua_prep_fn(struct scsi_device *sdev, struct request *req)
806{ 800{
807 struct alua_dh_data *h = get_alua_data(sdev); 801 struct alua_dh_data *h = sdev->handler_data;
808 int ret = BLKPREP_OK; 802 int ret = BLKPREP_OK;
809 803
810 if (h->state == TPGS_STATE_TRANSITIONING) 804 if (h->state == TPGS_STATE_TRANSITIONING)
@@ -819,23 +813,18 @@ static int alua_prep_fn(struct scsi_device *sdev, struct request *req)
819 813
820} 814}
821 815
822static bool alua_match(struct scsi_device *sdev)
823{
824 return (scsi_device_tpgs(sdev) != 0);
825}
826
827/* 816/*
828 * alua_bus_attach - Attach device handler 817 * alua_bus_attach - Attach device handler
829 * @sdev: device to be attached to 818 * @sdev: device to be attached to
830 */ 819 */
831static struct scsi_dh_data *alua_bus_attach(struct scsi_device *sdev) 820static int alua_bus_attach(struct scsi_device *sdev)
832{ 821{
833 struct alua_dh_data *h; 822 struct alua_dh_data *h;
834 int err; 823 int err;
835 824
836 h = kzalloc(sizeof(*h) , GFP_KERNEL); 825 h = kzalloc(sizeof(*h) , GFP_KERNEL);
837 if (!h) 826 if (!h)
838 return ERR_PTR(-ENOMEM); 827 return -ENOMEM;
839 h->tpgs = TPGS_MODE_UNINITIALIZED; 828 h->tpgs = TPGS_MODE_UNINITIALIZED;
840 h->state = TPGS_STATE_OPTIMIZED; 829 h->state = TPGS_STATE_OPTIMIZED;
841 h->group_id = -1; 830 h->group_id = -1;
@@ -848,11 +837,11 @@ static struct scsi_dh_data *alua_bus_attach(struct scsi_device *sdev)
848 if (err != SCSI_DH_OK && err != SCSI_DH_DEV_OFFLINED) 837 if (err != SCSI_DH_OK && err != SCSI_DH_DEV_OFFLINED)
849 goto failed; 838 goto failed;
850 839
851 sdev_printk(KERN_NOTICE, sdev, "%s: Attached\n", ALUA_DH_NAME); 840 sdev->handler_data = h;
852 return &h->dh_data; 841 return 0;
853failed: 842failed:
854 kfree(h); 843 kfree(h);
855 return ERR_PTR(-EINVAL); 844 return -EINVAL;
856} 845}
857 846
858/* 847/*
@@ -861,10 +850,11 @@ failed:
861 */ 850 */
862static void alua_bus_detach(struct scsi_device *sdev) 851static void alua_bus_detach(struct scsi_device *sdev)
863{ 852{
864 struct alua_dh_data *h = get_alua_data(sdev); 853 struct alua_dh_data *h = sdev->handler_data;
865 854
866 if (h->buff && h->inq != h->buff) 855 if (h->buff && h->inq != h->buff)
867 kfree(h->buff); 856 kfree(h->buff);
857 sdev->handler_data = NULL;
868 kfree(h); 858 kfree(h);
869} 859}
870 860
@@ -877,7 +867,6 @@ static struct scsi_device_handler alua_dh = {
877 .check_sense = alua_check_sense, 867 .check_sense = alua_check_sense,
878 .activate = alua_activate, 868 .activate = alua_activate,
879 .set_params = alua_set_params, 869 .set_params = alua_set_params,
880 .match = alua_match,
881}; 870};
882 871
883static int __init alua_init(void) 872static int __init alua_init(void)
diff --git a/drivers/scsi/device_handler/scsi_dh_emc.c b/drivers/scsi/device_handler/scsi_dh_emc.c
index 6ed1caadbc6a..e6fb97cb12f4 100644
--- a/drivers/scsi/device_handler/scsi_dh_emc.c
+++ b/drivers/scsi/device_handler/scsi_dh_emc.c
@@ -72,7 +72,6 @@ static const char * lun_state[] =
72}; 72};
73 73
74struct clariion_dh_data { 74struct clariion_dh_data {
75 struct scsi_dh_data dh_data;
76 /* 75 /*
77 * Flags: 76 * Flags:
78 * CLARIION_SHORT_TRESPASS 77 * CLARIION_SHORT_TRESPASS
@@ -114,13 +113,6 @@ struct clariion_dh_data {
114 int current_sp; 113 int current_sp;
115}; 114};
116 115
117static inline struct clariion_dh_data
118 *get_clariion_data(struct scsi_device *sdev)
119{
120 return container_of(sdev->scsi_dh_data, struct clariion_dh_data,
121 dh_data);
122}
123
124/* 116/*
125 * Parse MODE_SELECT cmd reply. 117 * Parse MODE_SELECT cmd reply.
126 */ 118 */
@@ -450,7 +442,7 @@ static int clariion_check_sense(struct scsi_device *sdev,
450 442
451static int clariion_prep_fn(struct scsi_device *sdev, struct request *req) 443static int clariion_prep_fn(struct scsi_device *sdev, struct request *req)
452{ 444{
453 struct clariion_dh_data *h = get_clariion_data(sdev); 445 struct clariion_dh_data *h = sdev->handler_data;
454 int ret = BLKPREP_OK; 446 int ret = BLKPREP_OK;
455 447
456 if (h->lun_state != CLARIION_LUN_OWNED) { 448 if (h->lun_state != CLARIION_LUN_OWNED) {
@@ -533,7 +525,7 @@ retry:
533static int clariion_activate(struct scsi_device *sdev, 525static int clariion_activate(struct scsi_device *sdev,
534 activate_complete fn, void *data) 526 activate_complete fn, void *data)
535{ 527{
536 struct clariion_dh_data *csdev = get_clariion_data(sdev); 528 struct clariion_dh_data *csdev = sdev->handler_data;
537 int result; 529 int result;
538 530
539 result = clariion_send_inquiry(sdev, csdev); 531 result = clariion_send_inquiry(sdev, csdev);
@@ -574,7 +566,7 @@ done:
574 */ 566 */
575static int clariion_set_params(struct scsi_device *sdev, const char *params) 567static int clariion_set_params(struct scsi_device *sdev, const char *params)
576{ 568{
577 struct clariion_dh_data *csdev = get_clariion_data(sdev); 569 struct clariion_dh_data *csdev = sdev->handler_data;
578 unsigned int hr = 0, st = 0, argc; 570 unsigned int hr = 0, st = 0, argc;
579 const char *p = params; 571 const char *p = params;
580 int result = SCSI_DH_OK; 572 int result = SCSI_DH_OK;
@@ -622,42 +614,14 @@ done:
622 return result; 614 return result;
623} 615}
624 616
625static const struct { 617static int clariion_bus_attach(struct scsi_device *sdev)
626 char *vendor;
627 char *model;
628} clariion_dev_list[] = {
629 {"DGC", "RAID"},
630 {"DGC", "DISK"},
631 {"DGC", "VRAID"},
632 {NULL, NULL},
633};
634
635static bool clariion_match(struct scsi_device *sdev)
636{
637 int i;
638
639 if (scsi_device_tpgs(sdev))
640 return false;
641
642 for (i = 0; clariion_dev_list[i].vendor; i++) {
643 if (!strncmp(sdev->vendor, clariion_dev_list[i].vendor,
644 strlen(clariion_dev_list[i].vendor)) &&
645 !strncmp(sdev->model, clariion_dev_list[i].model,
646 strlen(clariion_dev_list[i].model))) {
647 return true;
648 }
649 }
650 return false;
651}
652
653static struct scsi_dh_data *clariion_bus_attach(struct scsi_device *sdev)
654{ 618{
655 struct clariion_dh_data *h; 619 struct clariion_dh_data *h;
656 int err; 620 int err;
657 621
658 h = kzalloc(sizeof(*h) , GFP_KERNEL); 622 h = kzalloc(sizeof(*h) , GFP_KERNEL);
659 if (!h) 623 if (!h)
660 return ERR_PTR(-ENOMEM); 624 return -ENOMEM;
661 h->lun_state = CLARIION_LUN_UNINITIALIZED; 625 h->lun_state = CLARIION_LUN_UNINITIALIZED;
662 h->default_sp = CLARIION_UNBOUND_LU; 626 h->default_sp = CLARIION_UNBOUND_LU;
663 h->current_sp = CLARIION_UNBOUND_LU; 627 h->current_sp = CLARIION_UNBOUND_LU;
@@ -675,18 +639,19 @@ static struct scsi_dh_data *clariion_bus_attach(struct scsi_device *sdev)
675 CLARIION_NAME, h->current_sp + 'A', 639 CLARIION_NAME, h->current_sp + 'A',
676 h->port, lun_state[h->lun_state], 640 h->port, lun_state[h->lun_state],
677 h->default_sp + 'A'); 641 h->default_sp + 'A');
678 return &h->dh_data; 642
643 sdev->handler_data = h;
644 return 0;
679 645
680failed: 646failed:
681 kfree(h); 647 kfree(h);
682 return ERR_PTR(-EINVAL); 648 return -EINVAL;
683} 649}
684 650
685static void clariion_bus_detach(struct scsi_device *sdev) 651static void clariion_bus_detach(struct scsi_device *sdev)
686{ 652{
687 struct clariion_dh_data *h = get_clariion_data(sdev); 653 kfree(sdev->handler_data);
688 654 sdev->handler_data = NULL;
689 kfree(h);
690} 655}
691 656
692static struct scsi_device_handler clariion_dh = { 657static struct scsi_device_handler clariion_dh = {
@@ -698,7 +663,6 @@ static struct scsi_device_handler clariion_dh = {
698 .activate = clariion_activate, 663 .activate = clariion_activate,
699 .prep_fn = clariion_prep_fn, 664 .prep_fn = clariion_prep_fn,
700 .set_params = clariion_set_params, 665 .set_params = clariion_set_params,
701 .match = clariion_match,
702}; 666};
703 667
704static int __init clariion_init(void) 668static int __init clariion_init(void)
diff --git a/drivers/scsi/device_handler/scsi_dh_hp_sw.c b/drivers/scsi/device_handler/scsi_dh_hp_sw.c
index 485d99544a15..9406d5f4a3d3 100644
--- a/drivers/scsi/device_handler/scsi_dh_hp_sw.c
+++ b/drivers/scsi/device_handler/scsi_dh_hp_sw.c
@@ -38,7 +38,6 @@
38#define HP_SW_PATH_PASSIVE 1 38#define HP_SW_PATH_PASSIVE 1
39 39
40struct hp_sw_dh_data { 40struct hp_sw_dh_data {
41 struct scsi_dh_data dh_data;
42 unsigned char sense[SCSI_SENSE_BUFFERSIZE]; 41 unsigned char sense[SCSI_SENSE_BUFFERSIZE];
43 int path_state; 42 int path_state;
44 int retries; 43 int retries;
@@ -50,11 +49,6 @@ struct hp_sw_dh_data {
50 49
51static int hp_sw_start_stop(struct hp_sw_dh_data *); 50static int hp_sw_start_stop(struct hp_sw_dh_data *);
52 51
53static inline struct hp_sw_dh_data *get_hp_sw_data(struct scsi_device *sdev)
54{
55 return container_of(sdev->scsi_dh_data, struct hp_sw_dh_data, dh_data);
56}
57
58/* 52/*
59 * tur_done - Handle TEST UNIT READY return status 53 * tur_done - Handle TEST UNIT READY return status
60 * @sdev: sdev the command has been sent to 54 * @sdev: sdev the command has been sent to
@@ -267,7 +261,7 @@ static int hp_sw_start_stop(struct hp_sw_dh_data *h)
267 261
268static int hp_sw_prep_fn(struct scsi_device *sdev, struct request *req) 262static int hp_sw_prep_fn(struct scsi_device *sdev, struct request *req)
269{ 263{
270 struct hp_sw_dh_data *h = get_hp_sw_data(sdev); 264 struct hp_sw_dh_data *h = sdev->handler_data;
271 int ret = BLKPREP_OK; 265 int ret = BLKPREP_OK;
272 266
273 if (h->path_state != HP_SW_PATH_ACTIVE) { 267 if (h->path_state != HP_SW_PATH_ACTIVE) {
@@ -292,7 +286,7 @@ static int hp_sw_activate(struct scsi_device *sdev,
292 activate_complete fn, void *data) 286 activate_complete fn, void *data)
293{ 287{
294 int ret = SCSI_DH_OK; 288 int ret = SCSI_DH_OK;
295 struct hp_sw_dh_data *h = get_hp_sw_data(sdev); 289 struct hp_sw_dh_data *h = sdev->handler_data;
296 290
297 ret = hp_sw_tur(sdev, h); 291 ret = hp_sw_tur(sdev, h);
298 292
@@ -311,43 +305,14 @@ static int hp_sw_activate(struct scsi_device *sdev,
311 return 0; 305 return 0;
312} 306}
313 307
314static const struct { 308static int hp_sw_bus_attach(struct scsi_device *sdev)
315 char *vendor;
316 char *model;
317} hp_sw_dh_data_list[] = {
318 {"COMPAQ", "MSA1000 VOLUME"},
319 {"COMPAQ", "HSV110"},
320 {"HP", "HSV100"},
321 {"DEC", "HSG80"},
322 {NULL, NULL},
323};
324
325static bool hp_sw_match(struct scsi_device *sdev)
326{
327 int i;
328
329 if (scsi_device_tpgs(sdev))
330 return false;
331
332 for (i = 0; hp_sw_dh_data_list[i].vendor; i++) {
333 if (!strncmp(sdev->vendor, hp_sw_dh_data_list[i].vendor,
334 strlen(hp_sw_dh_data_list[i].vendor)) &&
335 !strncmp(sdev->model, hp_sw_dh_data_list[i].model,
336 strlen(hp_sw_dh_data_list[i].model))) {
337 return true;
338 }
339 }
340 return false;
341}
342
343static struct scsi_dh_data *hp_sw_bus_attach(struct scsi_device *sdev)
344{ 309{
345 struct hp_sw_dh_data *h; 310 struct hp_sw_dh_data *h;
346 int ret; 311 int ret;
347 312
348 h = kzalloc(sizeof(*h), GFP_KERNEL); 313 h = kzalloc(sizeof(*h), GFP_KERNEL);
349 if (!h) 314 if (!h)
350 return ERR_PTR(-ENOMEM); 315 return -ENOMEM;
351 h->path_state = HP_SW_PATH_UNINITIALIZED; 316 h->path_state = HP_SW_PATH_UNINITIALIZED;
352 h->retries = HP_SW_RETRIES; 317 h->retries = HP_SW_RETRIES;
353 h->sdev = sdev; 318 h->sdev = sdev;
@@ -359,17 +324,18 @@ static struct scsi_dh_data *hp_sw_bus_attach(struct scsi_device *sdev)
359 sdev_printk(KERN_INFO, sdev, "%s: attached to %s path\n", 324 sdev_printk(KERN_INFO, sdev, "%s: attached to %s path\n",
360 HP_SW_NAME, h->path_state == HP_SW_PATH_ACTIVE? 325 HP_SW_NAME, h->path_state == HP_SW_PATH_ACTIVE?
361 "active":"passive"); 326 "active":"passive");
362 return &h->dh_data; 327
328 sdev->handler_data = h;
329 return 0;
363failed: 330failed:
364 kfree(h); 331 kfree(h);
365 return ERR_PTR(-EINVAL); 332 return -EINVAL;
366} 333}
367 334
368static void hp_sw_bus_detach( struct scsi_device *sdev ) 335static void hp_sw_bus_detach( struct scsi_device *sdev )
369{ 336{
370 struct hp_sw_dh_data *h = get_hp_sw_data(sdev); 337 kfree(sdev->handler_data);
371 338 sdev->handler_data = NULL;
372 kfree(h);
373} 339}
374 340
375static struct scsi_device_handler hp_sw_dh = { 341static struct scsi_device_handler hp_sw_dh = {
@@ -379,7 +345,6 @@ static struct scsi_device_handler hp_sw_dh = {
379 .detach = hp_sw_bus_detach, 345 .detach = hp_sw_bus_detach,
380 .activate = hp_sw_activate, 346 .activate = hp_sw_activate,
381 .prep_fn = hp_sw_prep_fn, 347 .prep_fn = hp_sw_prep_fn,
382 .match = hp_sw_match,
383}; 348};
384 349
385static int __init hp_sw_init(void) 350static int __init hp_sw_init(void)
diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c
index b46ace3d4bf0..361358134315 100644
--- a/drivers/scsi/device_handler/scsi_dh_rdac.c
+++ b/drivers/scsi/device_handler/scsi_dh_rdac.c
@@ -181,7 +181,6 @@ struct c2_inquiry {
181}; 181};
182 182
183struct rdac_dh_data { 183struct rdac_dh_data {
184 struct scsi_dh_data dh_data;
185 struct rdac_controller *ctlr; 184 struct rdac_controller *ctlr;
186#define UNINITIALIZED_LUN (1 << 8) 185#define UNINITIALIZED_LUN (1 << 8)
187 unsigned lun; 186 unsigned lun;
@@ -260,11 +259,6 @@ do { \
260 sdev_printk(KERN_INFO, sdev, RDAC_NAME ": " f "\n", ## arg); \ 259 sdev_printk(KERN_INFO, sdev, RDAC_NAME ": " f "\n", ## arg); \
261} while (0); 260} while (0);
262 261
263static inline struct rdac_dh_data *get_rdac_data(struct scsi_device *sdev)
264{
265 return container_of(sdev->scsi_dh_data, struct rdac_dh_data, dh_data);
266}
267
268static struct request *get_rdac_req(struct scsi_device *sdev, 262static struct request *get_rdac_req(struct scsi_device *sdev,
269 void *buffer, unsigned buflen, int rw) 263 void *buffer, unsigned buflen, int rw)
270{ 264{
@@ -544,7 +538,7 @@ static int mode_select_handle_sense(struct scsi_device *sdev,
544{ 538{
545 struct scsi_sense_hdr sense_hdr; 539 struct scsi_sense_hdr sense_hdr;
546 int err = SCSI_DH_IO, ret; 540 int err = SCSI_DH_IO, ret;
547 struct rdac_dh_data *h = get_rdac_data(sdev); 541 struct rdac_dh_data *h = sdev->handler_data;
548 542
549 ret = scsi_normalize_sense(sensebuf, SCSI_SENSE_BUFFERSIZE, &sense_hdr); 543 ret = scsi_normalize_sense(sensebuf, SCSI_SENSE_BUFFERSIZE, &sense_hdr);
550 if (!ret) 544 if (!ret)
@@ -589,7 +583,7 @@ static void send_mode_select(struct work_struct *work)
589 container_of(work, struct rdac_controller, ms_work); 583 container_of(work, struct rdac_controller, ms_work);
590 struct request *rq; 584 struct request *rq;
591 struct scsi_device *sdev = ctlr->ms_sdev; 585 struct scsi_device *sdev = ctlr->ms_sdev;
592 struct rdac_dh_data *h = get_rdac_data(sdev); 586 struct rdac_dh_data *h = sdev->handler_data;
593 struct request_queue *q = sdev->request_queue; 587 struct request_queue *q = sdev->request_queue;
594 int err, retry_cnt = RDAC_RETRY_COUNT; 588 int err, retry_cnt = RDAC_RETRY_COUNT;
595 struct rdac_queue_data *tmp, *qdata; 589 struct rdac_queue_data *tmp, *qdata;
@@ -648,7 +642,7 @@ static int queue_mode_select(struct scsi_device *sdev,
648 if (!qdata) 642 if (!qdata)
649 return SCSI_DH_RETRY; 643 return SCSI_DH_RETRY;
650 644
651 qdata->h = get_rdac_data(sdev); 645 qdata->h = sdev->handler_data;
652 qdata->callback_fn = fn; 646 qdata->callback_fn = fn;
653 qdata->callback_data = data; 647 qdata->callback_data = data;
654 648
@@ -667,7 +661,7 @@ static int queue_mode_select(struct scsi_device *sdev,
667static int rdac_activate(struct scsi_device *sdev, 661static int rdac_activate(struct scsi_device *sdev,
668 activate_complete fn, void *data) 662 activate_complete fn, void *data)
669{ 663{
670 struct rdac_dh_data *h = get_rdac_data(sdev); 664 struct rdac_dh_data *h = sdev->handler_data;
671 int err = SCSI_DH_OK; 665 int err = SCSI_DH_OK;
672 int act = 0; 666 int act = 0;
673 667
@@ -702,7 +696,7 @@ done:
702 696
703static int rdac_prep_fn(struct scsi_device *sdev, struct request *req) 697static int rdac_prep_fn(struct scsi_device *sdev, struct request *req)
704{ 698{
705 struct rdac_dh_data *h = get_rdac_data(sdev); 699 struct rdac_dh_data *h = sdev->handler_data;
706 int ret = BLKPREP_OK; 700 int ret = BLKPREP_OK;
707 701
708 if (h->state != RDAC_STATE_ACTIVE) { 702 if (h->state != RDAC_STATE_ACTIVE) {
@@ -716,7 +710,7 @@ static int rdac_prep_fn(struct scsi_device *sdev, struct request *req)
716static int rdac_check_sense(struct scsi_device *sdev, 710static int rdac_check_sense(struct scsi_device *sdev,
717 struct scsi_sense_hdr *sense_hdr) 711 struct scsi_sense_hdr *sense_hdr)
718{ 712{
719 struct rdac_dh_data *h = get_rdac_data(sdev); 713 struct rdac_dh_data *h = sdev->handler_data;
720 714
721 RDAC_LOG(RDAC_LOG_SENSE, sdev, "array %s, ctlr %d, " 715 RDAC_LOG(RDAC_LOG_SENSE, sdev, "array %s, ctlr %d, "
722 "I/O returned with sense %02x/%02x/%02x", 716 "I/O returned with sense %02x/%02x/%02x",
@@ -778,56 +772,7 @@ static int rdac_check_sense(struct scsi_device *sdev,
778 return SCSI_RETURN_NOT_HANDLED; 772 return SCSI_RETURN_NOT_HANDLED;
779} 773}
780 774
781static const struct { 775static int rdac_bus_attach(struct scsi_device *sdev)
782 char *vendor;
783 char *model;
784} rdac_dev_list[] = {
785 {"IBM", "1722"},
786 {"IBM", "1724"},
787 {"IBM", "1726"},
788 {"IBM", "1742"},
789 {"IBM", "1745"},
790 {"IBM", "1746"},
791 {"IBM", "1813"},
792 {"IBM", "1814"},
793 {"IBM", "1815"},
794 {"IBM", "1818"},
795 {"IBM", "3526"},
796 {"SGI", "TP9"},
797 {"SGI", "IS"},
798 {"STK", "OPENstorage D280"},
799 {"STK", "FLEXLINE 380"},
800 {"SUN", "CSM"},
801 {"SUN", "LCSM100"},
802 {"SUN", "STK6580_6780"},
803 {"SUN", "SUN_6180"},
804 {"SUN", "ArrayStorage"},
805 {"DELL", "MD3"},
806 {"NETAPP", "INF-01-00"},
807 {"LSI", "INF-01-00"},
808 {"ENGENIO", "INF-01-00"},
809 {NULL, NULL},
810};
811
812static bool rdac_match(struct scsi_device *sdev)
813{
814 int i;
815
816 if (scsi_device_tpgs(sdev))
817 return false;
818
819 for (i = 0; rdac_dev_list[i].vendor; i++) {
820 if (!strncmp(sdev->vendor, rdac_dev_list[i].vendor,
821 strlen(rdac_dev_list[i].vendor)) &&
822 !strncmp(sdev->model, rdac_dev_list[i].model,
823 strlen(rdac_dev_list[i].model))) {
824 return true;
825 }
826 }
827 return false;
828}
829
830static struct scsi_dh_data *rdac_bus_attach(struct scsi_device *sdev)
831{ 776{
832 struct rdac_dh_data *h; 777 struct rdac_dh_data *h;
833 int err; 778 int err;
@@ -836,7 +781,7 @@ static struct scsi_dh_data *rdac_bus_attach(struct scsi_device *sdev)
836 781
837 h = kzalloc(sizeof(*h) , GFP_KERNEL); 782 h = kzalloc(sizeof(*h) , GFP_KERNEL);
838 if (!h) 783 if (!h)
839 return ERR_PTR(-ENOMEM); 784 return -ENOMEM;
840 h->lun = UNINITIALIZED_LUN; 785 h->lun = UNINITIALIZED_LUN;
841 h->state = RDAC_STATE_ACTIVE; 786 h->state = RDAC_STATE_ACTIVE;
842 787
@@ -861,7 +806,8 @@ static struct scsi_dh_data *rdac_bus_attach(struct scsi_device *sdev)
861 RDAC_NAME, h->lun, mode[(int)h->mode], 806 RDAC_NAME, h->lun, mode[(int)h->mode],
862 lun_state[(int)h->lun_state]); 807 lun_state[(int)h->lun_state]);
863 808
864 return &h->dh_data; 809 sdev->handler_data = h;
810 return 0;
865 811
866clean_ctlr: 812clean_ctlr:
867 spin_lock(&list_lock); 813 spin_lock(&list_lock);
@@ -870,12 +816,12 @@ clean_ctlr:
870 816
871failed: 817failed:
872 kfree(h); 818 kfree(h);
873 return ERR_PTR(-EINVAL); 819 return -EINVAL;
874} 820}
875 821
876static void rdac_bus_detach( struct scsi_device *sdev ) 822static void rdac_bus_detach( struct scsi_device *sdev )
877{ 823{
878 struct rdac_dh_data *h = get_rdac_data(sdev); 824 struct rdac_dh_data *h = sdev->handler_data;
879 825
880 if (h->ctlr && h->ctlr->ms_queued) 826 if (h->ctlr && h->ctlr->ms_queued)
881 flush_workqueue(kmpath_rdacd); 827 flush_workqueue(kmpath_rdacd);
@@ -884,6 +830,7 @@ static void rdac_bus_detach( struct scsi_device *sdev )
884 if (h->ctlr) 830 if (h->ctlr)
885 kref_put(&h->ctlr->kref, release_controller); 831 kref_put(&h->ctlr->kref, release_controller);
886 spin_unlock(&list_lock); 832 spin_unlock(&list_lock);
833 sdev->handler_data = NULL;
887 kfree(h); 834 kfree(h);
888} 835}
889 836
@@ -895,7 +842,6 @@ static struct scsi_device_handler rdac_dh = {
895 .attach = rdac_bus_attach, 842 .attach = rdac_bus_attach,
896 .detach = rdac_bus_detach, 843 .detach = rdac_bus_detach,
897 .activate = rdac_activate, 844 .activate = rdac_activate,
898 .match = rdac_match,
899}; 845};
900 846
901static int __init rdac_init(void) 847static int __init rdac_init(void)
diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c
index ec193a8357d7..d3eb80c46bbe 100644
--- a/drivers/scsi/fcoe/fcoe.c
+++ b/drivers/scsi/fcoe/fcoe.c
@@ -364,7 +364,7 @@ static int fcoe_interface_setup(struct fcoe_interface *fcoe,
364 * on the ethertype for the given device 364 * on the ethertype for the given device
365 */ 365 */
366 fcoe->fcoe_packet_type.func = fcoe_rcv; 366 fcoe->fcoe_packet_type.func = fcoe_rcv;
367 fcoe->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE); 367 fcoe->fcoe_packet_type.type = htons(ETH_P_FCOE);
368 fcoe->fcoe_packet_type.dev = netdev; 368 fcoe->fcoe_packet_type.dev = netdev;
369 dev_add_pack(&fcoe->fcoe_packet_type); 369 dev_add_pack(&fcoe->fcoe_packet_type);
370 370
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 341191952155..b62836ddbbee 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -4555,7 +4555,7 @@ static ssize_t ipr_store_raw_mode(struct device *dev,
4555 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4555 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4556 res = (struct ipr_resource_entry *)sdev->hostdata; 4556 res = (struct ipr_resource_entry *)sdev->hostdata;
4557 if (res) { 4557 if (res) {
4558 if (ioa_cfg->sis64 && ipr_is_af_dasd_device(res)) { 4558 if (ipr_is_af_dasd_device(res)) {
4559 res->raw_mode = simple_strtoul(buf, NULL, 10); 4559 res->raw_mode = simple_strtoul(buf, NULL, 10);
4560 len = strlen(buf); 4560 len = strlen(buf);
4561 if (res->sdev) 4561 if (res->sdev)
@@ -6383,9 +6383,13 @@ static int ipr_queuecommand(struct Scsi_Host *shost,
6383 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) { 6383 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) {
6384 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6384 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6385 } 6385 }
6386 if (res->raw_mode && ipr_is_af_dasd_device(res)) 6386 if (res->raw_mode && ipr_is_af_dasd_device(res)) {
6387 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_PIPE; 6387 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_PIPE;
6388 6388
6389 if (scsi_cmd->underflow == 0)
6390 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6391 }
6392
6389 if (ioa_cfg->sis64) 6393 if (ioa_cfg->sis64)
6390 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd); 6394 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
6391 else 6395 else
diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c
index eb627724417e..4abb93a83e0f 100644
--- a/drivers/scsi/lpfc/lpfc_mbox.c
+++ b/drivers/scsi/lpfc/lpfc_mbox.c
@@ -2284,7 +2284,7 @@ lpfc_mbx_cmpl_rdp_page_a2(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
2284 (struct lpfc_rdp_context *)(mbox->context2); 2284 (struct lpfc_rdp_context *)(mbox->context2);
2285 2285
2286 if (bf_get(lpfc_mqe_status, &mbox->u.mqe)) 2286 if (bf_get(lpfc_mqe_status, &mbox->u.mqe))
2287 goto error; 2287 goto error_mbuf_free;
2288 2288
2289 lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a2, 2289 lpfc_sli_bemem_bcopy(mp->virt, &rdp_context->page_a2,
2290 DMP_SFF_PAGE_A2_SIZE); 2290 DMP_SFF_PAGE_A2_SIZE);
@@ -2299,13 +2299,14 @@ lpfc_mbx_cmpl_rdp_page_a2(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
2299 mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_link_stat; 2299 mbox->mbox_cmpl = lpfc_mbx_cmpl_rdp_link_stat;
2300 mbox->context2 = (struct lpfc_rdp_context *) rdp_context; 2300 mbox->context2 = (struct lpfc_rdp_context *) rdp_context;
2301 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) == MBX_NOT_FINISHED) 2301 if (lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT) == MBX_NOT_FINISHED)
2302 goto error; 2302 goto error_cmd_free;
2303 2303
2304 return; 2304 return;
2305 2305
2306error: 2306error_mbuf_free:
2307 lpfc_mbuf_free(phba, mp->virt, mp->phys); 2307 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2308 kfree(mp); 2308 kfree(mp);
2309error_cmd_free:
2309 lpfc_sli4_mbox_cmd_free(phba, mbox); 2310 lpfc_sli4_mbox_cmd_free(phba, mbox);
2310 rdp_context->cmpl(phba, rdp_context, FAILURE); 2311 rdp_context->cmpl(phba, rdp_context, FAILURE);
2311} 2312}
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c
index 6dec7cff316f..c167911221e9 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_base.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_base.c
@@ -112,9 +112,12 @@ _scsih_set_fwfault_debug(const char *val, struct kernel_param *kp)
112 if (ret) 112 if (ret)
113 return ret; 113 return ret;
114 114
115 /* global ioc spinlock to protect controller list on list operations */
115 printk(KERN_INFO "setting fwfault_debug(%d)\n", mpt2sas_fwfault_debug); 116 printk(KERN_INFO "setting fwfault_debug(%d)\n", mpt2sas_fwfault_debug);
117 spin_lock(&gioc_lock);
116 list_for_each_entry(ioc, &mpt2sas_ioc_list, list) 118 list_for_each_entry(ioc, &mpt2sas_ioc_list, list)
117 ioc->fwfault_debug = mpt2sas_fwfault_debug; 119 ioc->fwfault_debug = mpt2sas_fwfault_debug;
120 spin_unlock(&gioc_lock);
118 return 0; 121 return 0;
119} 122}
120 123
@@ -4437,6 +4440,8 @@ mpt2sas_base_free_resources(struct MPT2SAS_ADAPTER *ioc)
4437 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, 4440 dexitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
4438 __func__)); 4441 __func__));
4439 4442
4443 /* synchronizing freeing resource with pci_access_mutex lock */
4444 mutex_lock(&ioc->pci_access_mutex);
4440 if (ioc->chip_phys && ioc->chip) { 4445 if (ioc->chip_phys && ioc->chip) {
4441 _base_mask_interrupts(ioc); 4446 _base_mask_interrupts(ioc);
4442 ioc->shost_recovery = 1; 4447 ioc->shost_recovery = 1;
@@ -4456,6 +4461,7 @@ mpt2sas_base_free_resources(struct MPT2SAS_ADAPTER *ioc)
4456 pci_disable_pcie_error_reporting(pdev); 4461 pci_disable_pcie_error_reporting(pdev);
4457 pci_disable_device(pdev); 4462 pci_disable_device(pdev);
4458 } 4463 }
4464 mutex_unlock(&ioc->pci_access_mutex);
4459 return; 4465 return;
4460} 4466}
4461 4467
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.h b/drivers/scsi/mpt2sas/mpt2sas_base.h
index caff8d10cca4..97ea360c6920 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_base.h
+++ b/drivers/scsi/mpt2sas/mpt2sas_base.h
@@ -238,6 +238,7 @@
238 * @flags: MPT_TARGET_FLAGS_XXX flags 238 * @flags: MPT_TARGET_FLAGS_XXX flags
239 * @deleted: target flaged for deletion 239 * @deleted: target flaged for deletion
240 * @tm_busy: target is busy with TM request. 240 * @tm_busy: target is busy with TM request.
241 * @sdev: The sas_device associated with this target
241 */ 242 */
242struct MPT2SAS_TARGET { 243struct MPT2SAS_TARGET {
243 struct scsi_target *starget; 244 struct scsi_target *starget;
@@ -248,6 +249,7 @@ struct MPT2SAS_TARGET {
248 u32 flags; 249 u32 flags;
249 u8 deleted; 250 u8 deleted;
250 u8 tm_busy; 251 u8 tm_busy;
252 struct _sas_device *sdev;
251}; 253};
252 254
253 255
@@ -376,8 +378,24 @@ struct _sas_device {
376 u8 phy; 378 u8 phy;
377 u8 responding; 379 u8 responding;
378 u8 pfa_led_on; 380 u8 pfa_led_on;
381 struct kref refcount;
379}; 382};
380 383
384static inline void sas_device_get(struct _sas_device *s)
385{
386 kref_get(&s->refcount);
387}
388
389static inline void sas_device_free(struct kref *r)
390{
391 kfree(container_of(r, struct _sas_device, refcount));
392}
393
394static inline void sas_device_put(struct _sas_device *s)
395{
396 kref_put(&s->refcount, sas_device_free);
397}
398
381/** 399/**
382 * struct _raid_device - raid volume link list 400 * struct _raid_device - raid volume link list
383 * @list: sas device list 401 * @list: sas device list
@@ -799,6 +817,12 @@ typedef void (*MPT2SAS_FLUSH_RUNNING_CMDS)(struct MPT2SAS_ADAPTER *ioc);
799 * @delayed_tr_list: target reset link list 817 * @delayed_tr_list: target reset link list
800 * @delayed_tr_volume_list: volume target reset link list 818 * @delayed_tr_volume_list: volume target reset link list
801 * @@temp_sensors_count: flag to carry the number of temperature sensors 819 * @@temp_sensors_count: flag to carry the number of temperature sensors
820 * @pci_access_mutex: Mutex to synchronize ioctl,sysfs show path and
821 * pci resource handling. PCI resource freeing will lead to free
822 * vital hardware/memory resource, which might be in use by cli/sysfs
823 * path functions resulting in Null pointer reference followed by kernel
824 * crash. To avoid the above race condition we use mutex syncrhonization
825 * which ensures the syncrhonization between cli/sysfs_show path
802 */ 826 */
803struct MPT2SAS_ADAPTER { 827struct MPT2SAS_ADAPTER {
804 struct list_head list; 828 struct list_head list;
@@ -1015,6 +1039,7 @@ struct MPT2SAS_ADAPTER {
1015 u8 mfg_pg10_hide_flag; 1039 u8 mfg_pg10_hide_flag;
1016 u8 hide_drives; 1040 u8 hide_drives;
1017 1041
1042 struct mutex pci_access_mutex;
1018}; 1043};
1019 1044
1020typedef u8 (*MPT_CALLBACK)(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, 1045typedef u8 (*MPT_CALLBACK)(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
@@ -1023,6 +1048,17 @@ typedef u8 (*MPT_CALLBACK)(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
1023 1048
1024/* base shared API */ 1049/* base shared API */
1025extern struct list_head mpt2sas_ioc_list; 1050extern struct list_head mpt2sas_ioc_list;
1051/* spinlock on list operations over IOCs
1052 * Case: when multiple warpdrive cards(IOCs) are in use
1053 * Each IOC will added to the ioc list stucture on initialization.
1054 * Watchdog threads run at regular intervals to check IOC for any
1055 * fault conditions which will trigger the dead_ioc thread to
1056 * deallocate pci resource, resulting deleting the IOC netry from list,
1057 * this deletion need to protected by spinlock to enusre that
1058 * ioc removal is syncrhonized, if not synchronized it might lead to
1059 * list_del corruption as the ioc list is traversed in cli path
1060 */
1061extern spinlock_t gioc_lock;
1026void mpt2sas_base_start_watchdog(struct MPT2SAS_ADAPTER *ioc); 1062void mpt2sas_base_start_watchdog(struct MPT2SAS_ADAPTER *ioc);
1027void mpt2sas_base_stop_watchdog(struct MPT2SAS_ADAPTER *ioc); 1063void mpt2sas_base_stop_watchdog(struct MPT2SAS_ADAPTER *ioc);
1028 1064
@@ -1095,11 +1131,12 @@ struct _sas_node *mpt2sas_scsih_expander_find_by_handle(struct MPT2SAS_ADAPTER *
1095 u16 handle); 1131 u16 handle);
1096struct _sas_node *mpt2sas_scsih_expander_find_by_sas_address(struct MPT2SAS_ADAPTER 1132struct _sas_node *mpt2sas_scsih_expander_find_by_sas_address(struct MPT2SAS_ADAPTER
1097 *ioc, u64 sas_address); 1133 *ioc, u64 sas_address);
1098struct _sas_device *mpt2sas_scsih_sas_device_find_by_sas_address( 1134struct _sas_device *mpt2sas_get_sdev_by_addr(
1135 struct MPT2SAS_ADAPTER *ioc, u64 sas_address);
1136struct _sas_device *__mpt2sas_get_sdev_by_addr(
1099 struct MPT2SAS_ADAPTER *ioc, u64 sas_address); 1137 struct MPT2SAS_ADAPTER *ioc, u64 sas_address);
1100 1138
1101void mpt2sas_port_enable_complete(struct MPT2SAS_ADAPTER *ioc); 1139void mpt2sas_port_enable_complete(struct MPT2SAS_ADAPTER *ioc);
1102
1103void mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase); 1140void mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase);
1104 1141
1105/* config shared API */ 1142/* config shared API */
diff --git a/drivers/scsi/mpt2sas/mpt2sas_ctl.c b/drivers/scsi/mpt2sas/mpt2sas_ctl.c
index 4e509604b571..3694b63bd993 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_ctl.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_ctl.c
@@ -427,13 +427,16 @@ static int
427_ctl_verify_adapter(int ioc_number, struct MPT2SAS_ADAPTER **iocpp) 427_ctl_verify_adapter(int ioc_number, struct MPT2SAS_ADAPTER **iocpp)
428{ 428{
429 struct MPT2SAS_ADAPTER *ioc; 429 struct MPT2SAS_ADAPTER *ioc;
430 430 /* global ioc lock to protect controller on list operations */
431 spin_lock(&gioc_lock);
431 list_for_each_entry(ioc, &mpt2sas_ioc_list, list) { 432 list_for_each_entry(ioc, &mpt2sas_ioc_list, list) {
432 if (ioc->id != ioc_number) 433 if (ioc->id != ioc_number)
433 continue; 434 continue;
435 spin_unlock(&gioc_lock);
434 *iocpp = ioc; 436 *iocpp = ioc;
435 return ioc_number; 437 return ioc_number;
436 } 438 }
439 spin_unlock(&gioc_lock);
437 *iocpp = NULL; 440 *iocpp = NULL;
438 return -1; 441 return -1;
439} 442}
@@ -522,10 +525,15 @@ _ctl_poll(struct file *filep, poll_table *wait)
522 525
523 poll_wait(filep, &ctl_poll_wait, wait); 526 poll_wait(filep, &ctl_poll_wait, wait);
524 527
528 /* global ioc lock to protect controller on list operations */
529 spin_lock(&gioc_lock);
525 list_for_each_entry(ioc, &mpt2sas_ioc_list, list) { 530 list_for_each_entry(ioc, &mpt2sas_ioc_list, list) {
526 if (ioc->aen_event_read_flag) 531 if (ioc->aen_event_read_flag) {
532 spin_unlock(&gioc_lock);
527 return POLLIN | POLLRDNORM; 533 return POLLIN | POLLRDNORM;
534 }
528 } 535 }
536 spin_unlock(&gioc_lock);
529 return 0; 537 return 0;
530} 538}
531 539
@@ -2168,16 +2176,23 @@ _ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg,
2168 2176
2169 if (_ctl_verify_adapter(ioctl_header.ioc_number, &ioc) == -1 || !ioc) 2177 if (_ctl_verify_adapter(ioctl_header.ioc_number, &ioc) == -1 || !ioc)
2170 return -ENODEV; 2178 return -ENODEV;
2179 /* pci_access_mutex lock acquired by ioctl path */
2180 mutex_lock(&ioc->pci_access_mutex);
2171 if (ioc->shost_recovery || ioc->pci_error_recovery || 2181 if (ioc->shost_recovery || ioc->pci_error_recovery ||
2172 ioc->is_driver_loading) 2182 ioc->is_driver_loading || ioc->remove_host) {
2173 return -EAGAIN; 2183 ret = -EAGAIN;
2184 goto out_unlock_pciaccess;
2185 }
2174 2186
2175 state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING : BLOCKING; 2187 state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING : BLOCKING;
2176 if (state == NON_BLOCKING) { 2188 if (state == NON_BLOCKING) {
2177 if (!mutex_trylock(&ioc->ctl_cmds.mutex)) 2189 if (!mutex_trylock(&ioc->ctl_cmds.mutex)) {
2178 return -EAGAIN; 2190 ret = -EAGAIN;
2191 goto out_unlock_pciaccess;
2192 }
2179 } else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex)) { 2193 } else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex)) {
2180 return -ERESTARTSYS; 2194 ret = -ERESTARTSYS;
2195 goto out_unlock_pciaccess;
2181 } 2196 }
2182 2197
2183 switch (cmd) { 2198 switch (cmd) {
@@ -2258,6 +2273,8 @@ _ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg,
2258 } 2273 }
2259 2274
2260 mutex_unlock(&ioc->ctl_cmds.mutex); 2275 mutex_unlock(&ioc->ctl_cmds.mutex);
2276out_unlock_pciaccess:
2277 mutex_unlock(&ioc->pci_access_mutex);
2261 return ret; 2278 return ret;
2262} 2279}
2263 2280
@@ -2711,6 +2728,12 @@ _ctl_BRM_status_show(struct device *cdev, struct device_attribute *attr,
2711 "warpdrive\n", ioc->name, __func__); 2728 "warpdrive\n", ioc->name, __func__);
2712 goto out; 2729 goto out;
2713 } 2730 }
2731 /* pci_access_mutex lock acquired by sysfs show path */
2732 mutex_lock(&ioc->pci_access_mutex);
2733 if (ioc->pci_error_recovery || ioc->remove_host) {
2734 mutex_unlock(&ioc->pci_access_mutex);
2735 return 0;
2736 }
2714 2737
2715 /* allocate upto GPIOVal 36 entries */ 2738 /* allocate upto GPIOVal 36 entries */
2716 sz = offsetof(Mpi2IOUnitPage3_t, GPIOVal) + (sizeof(u16) * 36); 2739 sz = offsetof(Mpi2IOUnitPage3_t, GPIOVal) + (sizeof(u16) * 36);
@@ -2749,6 +2772,7 @@ _ctl_BRM_status_show(struct device *cdev, struct device_attribute *attr,
2749 2772
2750 out: 2773 out:
2751 kfree(io_unit_pg3); 2774 kfree(io_unit_pg3);
2775 mutex_unlock(&ioc->pci_access_mutex);
2752 return rc; 2776 return rc;
2753} 2777}
2754static DEVICE_ATTR(BRM_status, S_IRUGO, _ctl_BRM_status_show, NULL); 2778static DEVICE_ATTR(BRM_status, S_IRUGO, _ctl_BRM_status_show, NULL);
diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
index 3f26147bbc64..0ad09b2bff9c 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -79,7 +79,8 @@ static int _scsih_scan_finished(struct Scsi_Host *shost, unsigned long time);
79 79
80/* global parameters */ 80/* global parameters */
81LIST_HEAD(mpt2sas_ioc_list); 81LIST_HEAD(mpt2sas_ioc_list);
82 82/* global ioc lock for list operations */
83DEFINE_SPINLOCK(gioc_lock);
83/* local parameters */ 84/* local parameters */
84static u8 scsi_io_cb_idx = -1; 85static u8 scsi_io_cb_idx = -1;
85static u8 tm_cb_idx = -1; 86static u8 tm_cb_idx = -1;
@@ -176,9 +177,37 @@ struct fw_event_work {
176 u8 VP_ID; 177 u8 VP_ID;
177 u8 ignore; 178 u8 ignore;
178 u16 event; 179 u16 event;
180 struct kref refcount;
179 char event_data[0] __aligned(4); 181 char event_data[0] __aligned(4);
180}; 182};
181 183
184static void fw_event_work_free(struct kref *r)
185{
186 kfree(container_of(r, struct fw_event_work, refcount));
187}
188
189static void fw_event_work_get(struct fw_event_work *fw_work)
190{
191 kref_get(&fw_work->refcount);
192}
193
194static void fw_event_work_put(struct fw_event_work *fw_work)
195{
196 kref_put(&fw_work->refcount, fw_event_work_free);
197}
198
199static struct fw_event_work *alloc_fw_event_work(int len)
200{
201 struct fw_event_work *fw_event;
202
203 fw_event = kzalloc(sizeof(*fw_event) + len, GFP_ATOMIC);
204 if (!fw_event)
205 return NULL;
206
207 kref_init(&fw_event->refcount);
208 return fw_event;
209}
210
182/* raid transport support */ 211/* raid transport support */
183static struct raid_template *mpt2sas_raid_template; 212static struct raid_template *mpt2sas_raid_template;
184 213
@@ -293,8 +322,10 @@ _scsih_set_debug_level(const char *val, struct kernel_param *kp)
293 return ret; 322 return ret;
294 323
295 printk(KERN_INFO "setting logging_level(0x%08x)\n", logging_level); 324 printk(KERN_INFO "setting logging_level(0x%08x)\n", logging_level);
325 spin_lock(&gioc_lock);
296 list_for_each_entry(ioc, &mpt2sas_ioc_list, list) 326 list_for_each_entry(ioc, &mpt2sas_ioc_list, list)
297 ioc->logging_level = logging_level; 327 ioc->logging_level = logging_level;
328 spin_unlock(&gioc_lock);
298 return 0; 329 return 0;
299} 330}
300module_param_call(logging_level, _scsih_set_debug_level, param_get_int, 331module_param_call(logging_level, _scsih_set_debug_level, param_get_int,
@@ -526,8 +557,61 @@ _scsih_determine_boot_device(struct MPT2SAS_ADAPTER *ioc,
526 } 557 }
527} 558}
528 559
560static struct _sas_device *
561__mpt2sas_get_sdev_from_target(struct MPT2SAS_ADAPTER *ioc,
562 struct MPT2SAS_TARGET *tgt_priv)
563{
564 struct _sas_device *ret;
565
566 assert_spin_locked(&ioc->sas_device_lock);
567
568 ret = tgt_priv->sdev;
569 if (ret)
570 sas_device_get(ret);
571
572 return ret;
573}
574
575static struct _sas_device *
576mpt2sas_get_sdev_from_target(struct MPT2SAS_ADAPTER *ioc,
577 struct MPT2SAS_TARGET *tgt_priv)
578{
579 struct _sas_device *ret;
580 unsigned long flags;
581
582 spin_lock_irqsave(&ioc->sas_device_lock, flags);
583 ret = __mpt2sas_get_sdev_from_target(ioc, tgt_priv);
584 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
585
586 return ret;
587}
588
589
590struct _sas_device *
591__mpt2sas_get_sdev_by_addr(struct MPT2SAS_ADAPTER *ioc,
592 u64 sas_address)
593{
594 struct _sas_device *sas_device;
595
596 assert_spin_locked(&ioc->sas_device_lock);
597
598 list_for_each_entry(sas_device, &ioc->sas_device_list, list)
599 if (sas_device->sas_address == sas_address)
600 goto found_device;
601
602 list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
603 if (sas_device->sas_address == sas_address)
604 goto found_device;
605
606 return NULL;
607
608found_device:
609 sas_device_get(sas_device);
610 return sas_device;
611}
612
529/** 613/**
530 * mpt2sas_scsih_sas_device_find_by_sas_address - sas device search 614 * mpt2sas_get_sdev_by_addr - sas device search
531 * @ioc: per adapter object 615 * @ioc: per adapter object
532 * @sas_address: sas address 616 * @sas_address: sas address
533 * Context: Calling function should acquire ioc->sas_device_lock 617 * Context: Calling function should acquire ioc->sas_device_lock
@@ -536,24 +620,44 @@ _scsih_determine_boot_device(struct MPT2SAS_ADAPTER *ioc,
536 * object. 620 * object.
537 */ 621 */
538struct _sas_device * 622struct _sas_device *
539mpt2sas_scsih_sas_device_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc, 623mpt2sas_get_sdev_by_addr(struct MPT2SAS_ADAPTER *ioc,
540 u64 sas_address) 624 u64 sas_address)
541{ 625{
542 struct _sas_device *sas_device; 626 struct _sas_device *sas_device;
627 unsigned long flags;
628
629 spin_lock_irqsave(&ioc->sas_device_lock, flags);
630 sas_device = __mpt2sas_get_sdev_by_addr(ioc,
631 sas_address);
632 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
633
634 return sas_device;
635}
636
637static struct _sas_device *
638__mpt2sas_get_sdev_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
639{
640 struct _sas_device *sas_device;
641
642 assert_spin_locked(&ioc->sas_device_lock);
543 643
544 list_for_each_entry(sas_device, &ioc->sas_device_list, list) 644 list_for_each_entry(sas_device, &ioc->sas_device_list, list)
545 if (sas_device->sas_address == sas_address) 645 if (sas_device->handle == handle)
546 return sas_device; 646 goto found_device;
547 647
548 list_for_each_entry(sas_device, &ioc->sas_device_init_list, list) 648 list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
549 if (sas_device->sas_address == sas_address) 649 if (sas_device->handle == handle)
550 return sas_device; 650 goto found_device;
551 651
552 return NULL; 652 return NULL;
653
654found_device:
655 sas_device_get(sas_device);
656 return sas_device;
553} 657}
554 658
555/** 659/**
556 * _scsih_sas_device_find_by_handle - sas device search 660 * mpt2sas_get_sdev_by_handle - sas device search
557 * @ioc: per adapter object 661 * @ioc: per adapter object
558 * @handle: sas device handle (assigned by firmware) 662 * @handle: sas device handle (assigned by firmware)
559 * Context: Calling function should acquire ioc->sas_device_lock 663 * Context: Calling function should acquire ioc->sas_device_lock
@@ -562,19 +666,16 @@ mpt2sas_scsih_sas_device_find_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
562 * object. 666 * object.
563 */ 667 */
564static struct _sas_device * 668static struct _sas_device *
565_scsih_sas_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle) 669mpt2sas_get_sdev_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
566{ 670{
567 struct _sas_device *sas_device; 671 struct _sas_device *sas_device;
672 unsigned long flags;
568 673
569 list_for_each_entry(sas_device, &ioc->sas_device_list, list) 674 spin_lock_irqsave(&ioc->sas_device_lock, flags);
570 if (sas_device->handle == handle) 675 sas_device = __mpt2sas_get_sdev_by_handle(ioc, handle);
571 return sas_device; 676 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
572
573 list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
574 if (sas_device->handle == handle)
575 return sas_device;
576 677
577 return NULL; 678 return sas_device;
578} 679}
579 680
580/** 681/**
@@ -583,7 +684,7 @@ _scsih_sas_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
583 * @sas_device: the sas_device object 684 * @sas_device: the sas_device object
584 * Context: This function will acquire ioc->sas_device_lock. 685 * Context: This function will acquire ioc->sas_device_lock.
585 * 686 *
586 * Removing object and freeing associated memory from the ioc->sas_device_list. 687 * If sas_device is on the list, remove it and decrement its reference count.
587 */ 688 */
588static void 689static void
589_scsih_sas_device_remove(struct MPT2SAS_ADAPTER *ioc, 690_scsih_sas_device_remove(struct MPT2SAS_ADAPTER *ioc,
@@ -594,9 +695,15 @@ _scsih_sas_device_remove(struct MPT2SAS_ADAPTER *ioc,
594 if (!sas_device) 695 if (!sas_device)
595 return; 696 return;
596 697
698 /*
699 * The lock serializes access to the list, but we still need to verify
700 * that nobody removed the entry while we were waiting on the lock.
701 */
597 spin_lock_irqsave(&ioc->sas_device_lock, flags); 702 spin_lock_irqsave(&ioc->sas_device_lock, flags);
598 list_del(&sas_device->list); 703 if (!list_empty(&sas_device->list)) {
599 kfree(sas_device); 704 list_del_init(&sas_device->list);
705 sas_device_put(sas_device);
706 }
600 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 707 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
601} 708}
602 709
@@ -620,6 +727,7 @@ _scsih_sas_device_add(struct MPT2SAS_ADAPTER *ioc,
620 sas_device->handle, (unsigned long long)sas_device->sas_address)); 727 sas_device->handle, (unsigned long long)sas_device->sas_address));
621 728
622 spin_lock_irqsave(&ioc->sas_device_lock, flags); 729 spin_lock_irqsave(&ioc->sas_device_lock, flags);
730 sas_device_get(sas_device);
623 list_add_tail(&sas_device->list, &ioc->sas_device_list); 731 list_add_tail(&sas_device->list, &ioc->sas_device_list);
624 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 732 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
625 733
@@ -659,6 +767,7 @@ _scsih_sas_device_init_add(struct MPT2SAS_ADAPTER *ioc,
659 sas_device->handle, (unsigned long long)sas_device->sas_address)); 767 sas_device->handle, (unsigned long long)sas_device->sas_address));
660 768
661 spin_lock_irqsave(&ioc->sas_device_lock, flags); 769 spin_lock_irqsave(&ioc->sas_device_lock, flags);
770 sas_device_get(sas_device);
662 list_add_tail(&sas_device->list, &ioc->sas_device_init_list); 771 list_add_tail(&sas_device->list, &ioc->sas_device_init_list);
663 _scsih_determine_boot_device(ioc, sas_device, 0); 772 _scsih_determine_boot_device(ioc, sas_device, 0);
664 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 773 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
@@ -1208,12 +1317,15 @@ _scsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
1208 goto not_sata; 1317 goto not_sata;
1209 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) 1318 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))
1210 goto not_sata; 1319 goto not_sata;
1320
1211 spin_lock_irqsave(&ioc->sas_device_lock, flags); 1321 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1212 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, 1322 sas_device = __mpt2sas_get_sdev_from_target(ioc, sas_target_priv_data);
1213 sas_device_priv_data->sas_target->sas_address); 1323 if (sas_device) {
1214 if (sas_device && sas_device->device_info & 1324 if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
1215 MPI2_SAS_DEVICE_INFO_SATA_DEVICE) 1325 max_depth = MPT2SAS_SATA_QUEUE_DEPTH;
1216 max_depth = MPT2SAS_SATA_QUEUE_DEPTH; 1326
1327 sas_device_put(sas_device);
1328 }
1217 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 1329 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1218 1330
1219 not_sata: 1331 not_sata:
@@ -1271,18 +1383,20 @@ _scsih_target_alloc(struct scsi_target *starget)
1271 /* sas/sata devices */ 1383 /* sas/sata devices */
1272 spin_lock_irqsave(&ioc->sas_device_lock, flags); 1384 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1273 rphy = dev_to_rphy(starget->dev.parent); 1385 rphy = dev_to_rphy(starget->dev.parent);
1274 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, 1386 sas_device = __mpt2sas_get_sdev_by_addr(ioc,
1275 rphy->identify.sas_address); 1387 rphy->identify.sas_address);
1276 1388
1277 if (sas_device) { 1389 if (sas_device) {
1278 sas_target_priv_data->handle = sas_device->handle; 1390 sas_target_priv_data->handle = sas_device->handle;
1279 sas_target_priv_data->sas_address = sas_device->sas_address; 1391 sas_target_priv_data->sas_address = sas_device->sas_address;
1392 sas_target_priv_data->sdev = sas_device;
1280 sas_device->starget = starget; 1393 sas_device->starget = starget;
1281 sas_device->id = starget->id; 1394 sas_device->id = starget->id;
1282 sas_device->channel = starget->channel; 1395 sas_device->channel = starget->channel;
1283 if (test_bit(sas_device->handle, ioc->pd_handles)) 1396 if (test_bit(sas_device->handle, ioc->pd_handles))
1284 sas_target_priv_data->flags |= 1397 sas_target_priv_data->flags |=
1285 MPT_TARGET_FLAGS_RAID_COMPONENT; 1398 MPT_TARGET_FLAGS_RAID_COMPONENT;
1399
1286 } 1400 }
1287 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 1401 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1288 1402
@@ -1324,13 +1438,21 @@ _scsih_target_destroy(struct scsi_target *starget)
1324 1438
1325 spin_lock_irqsave(&ioc->sas_device_lock, flags); 1439 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1326 rphy = dev_to_rphy(starget->dev.parent); 1440 rphy = dev_to_rphy(starget->dev.parent);
1327 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, 1441 sas_device = __mpt2sas_get_sdev_from_target(ioc, sas_target_priv_data);
1328 rphy->identify.sas_address);
1329 if (sas_device && (sas_device->starget == starget) && 1442 if (sas_device && (sas_device->starget == starget) &&
1330 (sas_device->id == starget->id) && 1443 (sas_device->id == starget->id) &&
1331 (sas_device->channel == starget->channel)) 1444 (sas_device->channel == starget->channel))
1332 sas_device->starget = NULL; 1445 sas_device->starget = NULL;
1333 1446
1447 if (sas_device) {
1448 /*
1449 * Corresponding get() is in _scsih_target_alloc()
1450 */
1451 sas_target_priv_data->sdev = NULL;
1452 sas_device_put(sas_device);
1453
1454 sas_device_put(sas_device);
1455 }
1334 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 1456 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1335 1457
1336 out: 1458 out:
@@ -1386,7 +1508,7 @@ _scsih_slave_alloc(struct scsi_device *sdev)
1386 1508
1387 if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) { 1509 if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) {
1388 spin_lock_irqsave(&ioc->sas_device_lock, flags); 1510 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1389 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, 1511 sas_device = __mpt2sas_get_sdev_by_addr(ioc,
1390 sas_target_priv_data->sas_address); 1512 sas_target_priv_data->sas_address);
1391 if (sas_device && (sas_device->starget == NULL)) { 1513 if (sas_device && (sas_device->starget == NULL)) {
1392 sdev_printk(KERN_INFO, sdev, 1514 sdev_printk(KERN_INFO, sdev,
@@ -1394,6 +1516,10 @@ _scsih_slave_alloc(struct scsi_device *sdev)
1394 __func__, __LINE__); 1516 __func__, __LINE__);
1395 sas_device->starget = starget; 1517 sas_device->starget = starget;
1396 } 1518 }
1519
1520 if (sas_device)
1521 sas_device_put(sas_device);
1522
1397 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 1523 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1398 } 1524 }
1399 1525
@@ -1428,10 +1554,13 @@ _scsih_slave_destroy(struct scsi_device *sdev)
1428 1554
1429 if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) { 1555 if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) {
1430 spin_lock_irqsave(&ioc->sas_device_lock, flags); 1556 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1431 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, 1557 sas_device = __mpt2sas_get_sdev_from_target(ioc,
1432 sas_target_priv_data->sas_address); 1558 sas_target_priv_data);
1433 if (sas_device && !sas_target_priv_data->num_luns) 1559 if (sas_device && !sas_target_priv_data->num_luns)
1434 sas_device->starget = NULL; 1560 sas_device->starget = NULL;
1561
1562 if (sas_device)
1563 sas_device_put(sas_device);
1435 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 1564 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1436 } 1565 }
1437 1566
@@ -2078,7 +2207,7 @@ _scsih_slave_configure(struct scsi_device *sdev)
2078 } 2207 }
2079 2208
2080 spin_lock_irqsave(&ioc->sas_device_lock, flags); 2209 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2081 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, 2210 sas_device = __mpt2sas_get_sdev_by_addr(ioc,
2082 sas_device_priv_data->sas_target->sas_address); 2211 sas_device_priv_data->sas_target->sas_address);
2083 if (!sas_device) { 2212 if (!sas_device) {
2084 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 2213 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
@@ -2112,17 +2241,18 @@ _scsih_slave_configure(struct scsi_device *sdev)
2112 (unsigned long long) sas_device->enclosure_logical_id, 2241 (unsigned long long) sas_device->enclosure_logical_id,
2113 sas_device->slot); 2242 sas_device->slot);
2114 2243
2244 sas_device_put(sas_device);
2115 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 2245 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2116 if (!ssp_target) 2246 if (!ssp_target)
2117 _scsih_display_sata_capabilities(ioc, handle, sdev); 2247 _scsih_display_sata_capabilities(ioc, handle, sdev);
2118 2248
2119
2120 _scsih_change_queue_depth(sdev, qdepth); 2249 _scsih_change_queue_depth(sdev, qdepth);
2121 2250
2122 if (ssp_target) { 2251 if (ssp_target) {
2123 sas_read_port_mode_page(sdev); 2252 sas_read_port_mode_page(sdev);
2124 _scsih_enable_tlr(ioc, sdev); 2253 _scsih_enable_tlr(ioc, sdev);
2125 } 2254 }
2255
2126 return 0; 2256 return 0;
2127} 2257}
2128 2258
@@ -2509,8 +2639,7 @@ _scsih_tm_display_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd)
2509 device_str, (unsigned long long)priv_target->sas_address); 2639 device_str, (unsigned long long)priv_target->sas_address);
2510 } else { 2640 } else {
2511 spin_lock_irqsave(&ioc->sas_device_lock, flags); 2641 spin_lock_irqsave(&ioc->sas_device_lock, flags);
2512 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, 2642 sas_device = __mpt2sas_get_sdev_from_target(ioc, priv_target);
2513 priv_target->sas_address);
2514 if (sas_device) { 2643 if (sas_device) {
2515 if (priv_target->flags & 2644 if (priv_target->flags &
2516 MPT_TARGET_FLAGS_RAID_COMPONENT) { 2645 MPT_TARGET_FLAGS_RAID_COMPONENT) {
@@ -2529,6 +2658,8 @@ _scsih_tm_display_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd)
2529 "enclosure_logical_id(0x%016llx), slot(%d)\n", 2658 "enclosure_logical_id(0x%016llx), slot(%d)\n",
2530 (unsigned long long)sas_device->enclosure_logical_id, 2659 (unsigned long long)sas_device->enclosure_logical_id,
2531 sas_device->slot); 2660 sas_device->slot);
2661
2662 sas_device_put(sas_device);
2532 } 2663 }
2533 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 2664 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2534 } 2665 }
@@ -2604,12 +2735,12 @@ _scsih_dev_reset(struct scsi_cmnd *scmd)
2604{ 2735{
2605 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host); 2736 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2606 struct MPT2SAS_DEVICE *sas_device_priv_data; 2737 struct MPT2SAS_DEVICE *sas_device_priv_data;
2607 struct _sas_device *sas_device; 2738 struct _sas_device *sas_device = NULL;
2608 unsigned long flags;
2609 u16 handle; 2739 u16 handle;
2610 int r; 2740 int r;
2611 2741
2612 struct scsi_target *starget = scmd->device->sdev_target; 2742 struct scsi_target *starget = scmd->device->sdev_target;
2743 struct MPT2SAS_TARGET *target_priv_data = starget->hostdata;
2613 2744
2614 starget_printk(KERN_INFO, starget, "attempting device reset! " 2745 starget_printk(KERN_INFO, starget, "attempting device reset! "
2615 "scmd(%p)\n", scmd); 2746 "scmd(%p)\n", scmd);
@@ -2629,12 +2760,10 @@ _scsih_dev_reset(struct scsi_cmnd *scmd)
2629 handle = 0; 2760 handle = 0;
2630 if (sas_device_priv_data->sas_target->flags & 2761 if (sas_device_priv_data->sas_target->flags &
2631 MPT_TARGET_FLAGS_RAID_COMPONENT) { 2762 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2632 spin_lock_irqsave(&ioc->sas_device_lock, flags); 2763 sas_device = mpt2sas_get_sdev_from_target(ioc,
2633 sas_device = _scsih_sas_device_find_by_handle(ioc, 2764 target_priv_data);
2634 sas_device_priv_data->sas_target->handle);
2635 if (sas_device) 2765 if (sas_device)
2636 handle = sas_device->volume_handle; 2766 handle = sas_device->volume_handle;
2637 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2638 } else 2767 } else
2639 handle = sas_device_priv_data->sas_target->handle; 2768 handle = sas_device_priv_data->sas_target->handle;
2640 2769
@@ -2651,6 +2780,10 @@ _scsih_dev_reset(struct scsi_cmnd *scmd)
2651 out: 2780 out:
2652 sdev_printk(KERN_INFO, scmd->device, "device reset: %s scmd(%p)\n", 2781 sdev_printk(KERN_INFO, scmd->device, "device reset: %s scmd(%p)\n",
2653 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd); 2782 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2783
2784 if (sas_device)
2785 sas_device_put(sas_device);
2786
2654 return r; 2787 return r;
2655} 2788}
2656 2789
@@ -2665,11 +2798,11 @@ _scsih_target_reset(struct scsi_cmnd *scmd)
2665{ 2798{
2666 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host); 2799 struct MPT2SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
2667 struct MPT2SAS_DEVICE *sas_device_priv_data; 2800 struct MPT2SAS_DEVICE *sas_device_priv_data;
2668 struct _sas_device *sas_device; 2801 struct _sas_device *sas_device = NULL;
2669 unsigned long flags;
2670 u16 handle; 2802 u16 handle;
2671 int r; 2803 int r;
2672 struct scsi_target *starget = scmd->device->sdev_target; 2804 struct scsi_target *starget = scmd->device->sdev_target;
2805 struct MPT2SAS_TARGET *target_priv_data = starget->hostdata;
2673 2806
2674 starget_printk(KERN_INFO, starget, "attempting target reset! " 2807 starget_printk(KERN_INFO, starget, "attempting target reset! "
2675 "scmd(%p)\n", scmd); 2808 "scmd(%p)\n", scmd);
@@ -2689,12 +2822,10 @@ _scsih_target_reset(struct scsi_cmnd *scmd)
2689 handle = 0; 2822 handle = 0;
2690 if (sas_device_priv_data->sas_target->flags & 2823 if (sas_device_priv_data->sas_target->flags &
2691 MPT_TARGET_FLAGS_RAID_COMPONENT) { 2824 MPT_TARGET_FLAGS_RAID_COMPONENT) {
2692 spin_lock_irqsave(&ioc->sas_device_lock, flags); 2825 sas_device = mpt2sas_get_sdev_from_target(ioc,
2693 sas_device = _scsih_sas_device_find_by_handle(ioc, 2826 target_priv_data);
2694 sas_device_priv_data->sas_target->handle);
2695 if (sas_device) 2827 if (sas_device)
2696 handle = sas_device->volume_handle; 2828 handle = sas_device->volume_handle;
2697 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2698 } else 2829 } else
2699 handle = sas_device_priv_data->sas_target->handle; 2830 handle = sas_device_priv_data->sas_target->handle;
2700 2831
@@ -2711,6 +2842,10 @@ _scsih_target_reset(struct scsi_cmnd *scmd)
2711 out: 2842 out:
2712 starget_printk(KERN_INFO, starget, "target reset: %s scmd(%p)\n", 2843 starget_printk(KERN_INFO, starget, "target reset: %s scmd(%p)\n",
2713 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd); 2844 ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
2845
2846 if (sas_device)
2847 sas_device_put(sas_device);
2848
2714 return r; 2849 return r;
2715} 2850}
2716 2851
@@ -2768,36 +2903,39 @@ _scsih_fw_event_add(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
2768 return; 2903 return;
2769 2904
2770 spin_lock_irqsave(&ioc->fw_event_lock, flags); 2905 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2906 fw_event_work_get(fw_event);
2771 list_add_tail(&fw_event->list, &ioc->fw_event_list); 2907 list_add_tail(&fw_event->list, &ioc->fw_event_list);
2772 INIT_DELAYED_WORK(&fw_event->delayed_work, _firmware_event_work); 2908 INIT_DELAYED_WORK(&fw_event->delayed_work, _firmware_event_work);
2909 fw_event_work_get(fw_event);
2773 queue_delayed_work(ioc->firmware_event_thread, 2910 queue_delayed_work(ioc->firmware_event_thread,
2774 &fw_event->delayed_work, 0); 2911 &fw_event->delayed_work, 0);
2775 spin_unlock_irqrestore(&ioc->fw_event_lock, flags); 2912 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2776} 2913}
2777 2914
2778/** 2915/**
2779 * _scsih_fw_event_free - delete fw_event 2916 * _scsih_fw_event_del_from_list - delete fw_event from the list
2780 * @ioc: per adapter object 2917 * @ioc: per adapter object
2781 * @fw_event: object describing the event 2918 * @fw_event: object describing the event
2782 * Context: This function will acquire ioc->fw_event_lock. 2919 * Context: This function will acquire ioc->fw_event_lock.
2783 * 2920 *
2784 * This removes firmware event object from link list, frees associated memory. 2921 * If the fw_event is on the fw_event_list, remove it and do a put.
2785 * 2922 *
2786 * Return nothing. 2923 * Return nothing.
2787 */ 2924 */
2788static void 2925static void
2789_scsih_fw_event_free(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work 2926_scsih_fw_event_del_from_list(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work
2790 *fw_event) 2927 *fw_event)
2791{ 2928{
2792 unsigned long flags; 2929 unsigned long flags;
2793 2930
2794 spin_lock_irqsave(&ioc->fw_event_lock, flags); 2931 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2795 list_del(&fw_event->list); 2932 if (!list_empty(&fw_event->list)) {
2796 kfree(fw_event); 2933 list_del_init(&fw_event->list);
2934 fw_event_work_put(fw_event);
2935 }
2797 spin_unlock_irqrestore(&ioc->fw_event_lock, flags); 2936 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2798} 2937}
2799 2938
2800
2801/** 2939/**
2802 * _scsih_error_recovery_delete_devices - remove devices not responding 2940 * _scsih_error_recovery_delete_devices - remove devices not responding
2803 * @ioc: per adapter object 2941 * @ioc: per adapter object
@@ -2812,13 +2950,14 @@ _scsih_error_recovery_delete_devices(struct MPT2SAS_ADAPTER *ioc)
2812 if (ioc->is_driver_loading) 2950 if (ioc->is_driver_loading)
2813 return; 2951 return;
2814 2952
2815 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC); 2953 fw_event = alloc_fw_event_work(0);
2816 if (!fw_event) 2954 if (!fw_event)
2817 return; 2955 return;
2818 2956
2819 fw_event->event = MPT2SAS_REMOVE_UNRESPONDING_DEVICES; 2957 fw_event->event = MPT2SAS_REMOVE_UNRESPONDING_DEVICES;
2820 fw_event->ioc = ioc; 2958 fw_event->ioc = ioc;
2821 _scsih_fw_event_add(ioc, fw_event); 2959 _scsih_fw_event_add(ioc, fw_event);
2960 fw_event_work_put(fw_event);
2822} 2961}
2823 2962
2824/** 2963/**
@@ -2832,12 +2971,29 @@ mpt2sas_port_enable_complete(struct MPT2SAS_ADAPTER *ioc)
2832{ 2971{
2833 struct fw_event_work *fw_event; 2972 struct fw_event_work *fw_event;
2834 2973
2835 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC); 2974 fw_event = alloc_fw_event_work(0);
2836 if (!fw_event) 2975 if (!fw_event)
2837 return; 2976 return;
2838 fw_event->event = MPT2SAS_PORT_ENABLE_COMPLETE; 2977 fw_event->event = MPT2SAS_PORT_ENABLE_COMPLETE;
2839 fw_event->ioc = ioc; 2978 fw_event->ioc = ioc;
2840 _scsih_fw_event_add(ioc, fw_event); 2979 _scsih_fw_event_add(ioc, fw_event);
2980 fw_event_work_put(fw_event);
2981}
2982
2983static struct fw_event_work *dequeue_next_fw_event(struct MPT2SAS_ADAPTER *ioc)
2984{
2985 unsigned long flags;
2986 struct fw_event_work *fw_event = NULL;
2987
2988 spin_lock_irqsave(&ioc->fw_event_lock, flags);
2989 if (!list_empty(&ioc->fw_event_list)) {
2990 fw_event = list_first_entry(&ioc->fw_event_list,
2991 struct fw_event_work, list);
2992 list_del_init(&fw_event->list);
2993 }
2994 spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
2995
2996 return fw_event;
2841} 2997}
2842 2998
2843/** 2999/**
@@ -2852,17 +3008,25 @@ mpt2sas_port_enable_complete(struct MPT2SAS_ADAPTER *ioc)
2852static void 3008static void
2853_scsih_fw_event_cleanup_queue(struct MPT2SAS_ADAPTER *ioc) 3009_scsih_fw_event_cleanup_queue(struct MPT2SAS_ADAPTER *ioc)
2854{ 3010{
2855 struct fw_event_work *fw_event, *next; 3011 struct fw_event_work *fw_event;
2856 3012
2857 if (list_empty(&ioc->fw_event_list) || 3013 if (list_empty(&ioc->fw_event_list) ||
2858 !ioc->firmware_event_thread || in_interrupt()) 3014 !ioc->firmware_event_thread || in_interrupt())
2859 return; 3015 return;
2860 3016
2861 list_for_each_entry_safe(fw_event, next, &ioc->fw_event_list, list) { 3017 while ((fw_event = dequeue_next_fw_event(ioc))) {
2862 if (cancel_delayed_work_sync(&fw_event->delayed_work)) { 3018 /*
2863 _scsih_fw_event_free(ioc, fw_event); 3019 * Wait on the fw_event to complete. If this returns 1, then
2864 continue; 3020 * the event was never executed, and we need a put for the
2865 } 3021 * reference the delayed_work had on the fw_event.
3022 *
3023 * If it did execute, we wait for it to finish, and the put will
3024 * happen from _firmware_event_work()
3025 */
3026 if (cancel_delayed_work_sync(&fw_event->delayed_work))
3027 fw_event_work_put(fw_event);
3028
3029 fw_event_work_put(fw_event);
2866 } 3030 }
2867} 3031}
2868 3032
@@ -3002,15 +3166,15 @@ _scsih_block_io_to_children_attached_to_ex(struct MPT2SAS_ADAPTER *ioc,
3002 3166
3003 list_for_each_entry(mpt2sas_port, 3167 list_for_each_entry(mpt2sas_port,
3004 &sas_expander->sas_port_list, port_list) { 3168 &sas_expander->sas_port_list, port_list) {
3005 if (mpt2sas_port->remote_identify.device_type == 3169 if (mpt2sas_port->remote_identify.device_type == SAS_END_DEVICE) {
3006 SAS_END_DEVICE) {
3007 spin_lock_irqsave(&ioc->sas_device_lock, flags); 3170 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3008 sas_device = 3171 sas_device = __mpt2sas_get_sdev_by_addr(ioc,
3009 mpt2sas_scsih_sas_device_find_by_sas_address(ioc, 3172 mpt2sas_port->remote_identify.sas_address);
3010 mpt2sas_port->remote_identify.sas_address); 3173 if (sas_device) {
3011 if (sas_device)
3012 set_bit(sas_device->handle, 3174 set_bit(sas_device->handle,
3013 ioc->blocking_handles); 3175 ioc->blocking_handles);
3176 sas_device_put(sas_device);
3177 }
3014 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 3178 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3015 } 3179 }
3016 } 3180 }
@@ -3080,7 +3244,7 @@ _scsih_tm_tr_send(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3080{ 3244{
3081 Mpi2SCSITaskManagementRequest_t *mpi_request; 3245 Mpi2SCSITaskManagementRequest_t *mpi_request;
3082 u16 smid; 3246 u16 smid;
3083 struct _sas_device *sas_device; 3247 struct _sas_device *sas_device = NULL;
3084 struct MPT2SAS_TARGET *sas_target_priv_data = NULL; 3248 struct MPT2SAS_TARGET *sas_target_priv_data = NULL;
3085 u64 sas_address = 0; 3249 u64 sas_address = 0;
3086 unsigned long flags; 3250 unsigned long flags;
@@ -3110,7 +3274,7 @@ _scsih_tm_tr_send(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3110 return; 3274 return;
3111 3275
3112 spin_lock_irqsave(&ioc->sas_device_lock, flags); 3276 spin_lock_irqsave(&ioc->sas_device_lock, flags);
3113 sas_device = _scsih_sas_device_find_by_handle(ioc, handle); 3277 sas_device = __mpt2sas_get_sdev_by_handle(ioc, handle);
3114 if (sas_device && sas_device->starget && 3278 if (sas_device && sas_device->starget &&
3115 sas_device->starget->hostdata) { 3279 sas_device->starget->hostdata) {
3116 sas_target_priv_data = sas_device->starget->hostdata; 3280 sas_target_priv_data = sas_device->starget->hostdata;
@@ -3131,14 +3295,14 @@ _scsih_tm_tr_send(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3131 if (!smid) { 3295 if (!smid) {
3132 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC); 3296 delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
3133 if (!delayed_tr) 3297 if (!delayed_tr)
3134 return; 3298 goto out;
3135 INIT_LIST_HEAD(&delayed_tr->list); 3299 INIT_LIST_HEAD(&delayed_tr->list);
3136 delayed_tr->handle = handle; 3300 delayed_tr->handle = handle;
3137 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list); 3301 list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
3138 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT 3302 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT
3139 "DELAYED:tr:handle(0x%04x), (open)\n", 3303 "DELAYED:tr:handle(0x%04x), (open)\n",
3140 ioc->name, handle)); 3304 ioc->name, handle));
3141 return; 3305 goto out;
3142 } 3306 }
3143 3307
3144 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "tr_send:handle(0x%04x), " 3308 dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "tr_send:handle(0x%04x), "
@@ -3150,6 +3314,9 @@ _scsih_tm_tr_send(struct MPT2SAS_ADAPTER *ioc, u16 handle)
3150 mpi_request->DevHandle = cpu_to_le16(handle); 3314 mpi_request->DevHandle = cpu_to_le16(handle);
3151 mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET; 3315 mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
3152 mpt2sas_base_put_smid_hi_priority(ioc, smid); 3316 mpt2sas_base_put_smid_hi_priority(ioc, smid);
3317out:
3318 if (sas_device)
3319 sas_device_put(sas_device);
3153} 3320}
3154 3321
3155 3322
@@ -4068,7 +4235,6 @@ _scsih_scsi_ioc_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
4068 char *desc_scsi_state = ioc->tmp_string; 4235 char *desc_scsi_state = ioc->tmp_string;
4069 u32 log_info = le32_to_cpu(mpi_reply->IOCLogInfo); 4236 u32 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
4070 struct _sas_device *sas_device = NULL; 4237 struct _sas_device *sas_device = NULL;
4071 unsigned long flags;
4072 struct scsi_target *starget = scmd->device->sdev_target; 4238 struct scsi_target *starget = scmd->device->sdev_target;
4073 struct MPT2SAS_TARGET *priv_target = starget->hostdata; 4239 struct MPT2SAS_TARGET *priv_target = starget->hostdata;
4074 char *device_str = NULL; 4240 char *device_str = NULL;
@@ -4200,9 +4366,7 @@ _scsih_scsi_ioc_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
4200 printk(MPT2SAS_WARN_FMT "\t%s wwid(0x%016llx)\n", ioc->name, 4366 printk(MPT2SAS_WARN_FMT "\t%s wwid(0x%016llx)\n", ioc->name,
4201 device_str, (unsigned long long)priv_target->sas_address); 4367 device_str, (unsigned long long)priv_target->sas_address);
4202 } else { 4368 } else {
4203 spin_lock_irqsave(&ioc->sas_device_lock, flags); 4369 sas_device = mpt2sas_get_sdev_from_target(ioc, priv_target);
4204 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
4205 priv_target->sas_address);
4206 if (sas_device) { 4370 if (sas_device) {
4207 printk(MPT2SAS_WARN_FMT "\tsas_address(0x%016llx), " 4371 printk(MPT2SAS_WARN_FMT "\tsas_address(0x%016llx), "
4208 "phy(%d)\n", ioc->name, sas_device->sas_address, 4372 "phy(%d)\n", ioc->name, sas_device->sas_address,
@@ -4211,8 +4375,9 @@ _scsih_scsi_ioc_info(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
4211 "\tenclosure_logical_id(0x%016llx), slot(%d)\n", 4375 "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
4212 ioc->name, sas_device->enclosure_logical_id, 4376 ioc->name, sas_device->enclosure_logical_id,
4213 sas_device->slot); 4377 sas_device->slot);
4378
4379 sas_device_put(sas_device);
4214 } 4380 }
4215 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4216 } 4381 }
4217 4382
4218 printk(MPT2SAS_WARN_FMT "\thandle(0x%04x), ioc_status(%s)(0x%04x), " 4383 printk(MPT2SAS_WARN_FMT "\thandle(0x%04x), ioc_status(%s)(0x%04x), "
@@ -4259,7 +4424,7 @@ _scsih_turn_on_pfa_led(struct MPT2SAS_ADAPTER *ioc, u16 handle)
4259 Mpi2SepRequest_t mpi_request; 4424 Mpi2SepRequest_t mpi_request;
4260 struct _sas_device *sas_device; 4425 struct _sas_device *sas_device;
4261 4426
4262 sas_device = _scsih_sas_device_find_by_handle(ioc, handle); 4427 sas_device = mpt2sas_get_sdev_by_handle(ioc, handle);
4263 if (!sas_device) 4428 if (!sas_device)
4264 return; 4429 return;
4265 4430
@@ -4274,7 +4439,7 @@ _scsih_turn_on_pfa_led(struct MPT2SAS_ADAPTER *ioc, u16 handle)
4274 &mpi_request)) != 0) { 4439 &mpi_request)) != 0) {
4275 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", ioc->name, 4440 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", ioc->name,
4276 __FILE__, __LINE__, __func__); 4441 __FILE__, __LINE__, __func__);
4277 return; 4442 goto out;
4278 } 4443 }
4279 sas_device->pfa_led_on = 1; 4444 sas_device->pfa_led_on = 1;
4280 4445
@@ -4284,8 +4449,10 @@ _scsih_turn_on_pfa_led(struct MPT2SAS_ADAPTER *ioc, u16 handle)
4284 "enclosure_processor: ioc_status (0x%04x), loginfo(0x%08x)\n", 4449 "enclosure_processor: ioc_status (0x%04x), loginfo(0x%08x)\n",
4285 ioc->name, le16_to_cpu(mpi_reply.IOCStatus), 4450 ioc->name, le16_to_cpu(mpi_reply.IOCStatus),
4286 le32_to_cpu(mpi_reply.IOCLogInfo))); 4451 le32_to_cpu(mpi_reply.IOCLogInfo)));
4287 return; 4452 goto out;
4288 } 4453 }
4454out:
4455 sas_device_put(sas_device);
4289} 4456}
4290 4457
4291/** 4458/**
@@ -4340,13 +4507,14 @@ _scsih_send_event_to_turn_on_pfa_led(struct MPT2SAS_ADAPTER *ioc, u16 handle)
4340{ 4507{
4341 struct fw_event_work *fw_event; 4508 struct fw_event_work *fw_event;
4342 4509
4343 fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC); 4510 fw_event = alloc_fw_event_work(0);
4344 if (!fw_event) 4511 if (!fw_event)
4345 return; 4512 return;
4346 fw_event->event = MPT2SAS_TURN_ON_PFA_LED; 4513 fw_event->event = MPT2SAS_TURN_ON_PFA_LED;
4347 fw_event->device_handle = handle; 4514 fw_event->device_handle = handle;
4348 fw_event->ioc = ioc; 4515 fw_event->ioc = ioc;
4349 _scsih_fw_event_add(ioc, fw_event); 4516 _scsih_fw_event_add(ioc, fw_event);
4517 fw_event_work_put(fw_event);
4350} 4518}
4351 4519
4352/** 4520/**
@@ -4370,19 +4538,17 @@ _scsih_smart_predicted_fault(struct MPT2SAS_ADAPTER *ioc, u16 handle)
4370 4538
4371 /* only handle non-raid devices */ 4539 /* only handle non-raid devices */
4372 spin_lock_irqsave(&ioc->sas_device_lock, flags); 4540 spin_lock_irqsave(&ioc->sas_device_lock, flags);
4373 sas_device = _scsih_sas_device_find_by_handle(ioc, handle); 4541 sas_device = __mpt2sas_get_sdev_by_handle(ioc, handle);
4374 if (!sas_device) { 4542 if (!sas_device) {
4375 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 4543 goto out_unlock;
4376 return;
4377 } 4544 }
4378 starget = sas_device->starget; 4545 starget = sas_device->starget;
4379 sas_target_priv_data = starget->hostdata; 4546 sas_target_priv_data = starget->hostdata;
4380 4547
4381 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) || 4548 if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) ||
4382 ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))) { 4549 ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)))
4383 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 4550 goto out_unlock;
4384 return; 4551
4385 }
4386 starget_printk(KERN_WARNING, starget, "predicted fault\n"); 4552 starget_printk(KERN_WARNING, starget, "predicted fault\n");
4387 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 4553 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4388 4554
@@ -4396,7 +4562,7 @@ _scsih_smart_predicted_fault(struct MPT2SAS_ADAPTER *ioc, u16 handle)
4396 if (!event_reply) { 4562 if (!event_reply) {
4397 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", 4563 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
4398 ioc->name, __FILE__, __LINE__, __func__); 4564 ioc->name, __FILE__, __LINE__, __func__);
4399 return; 4565 goto out;
4400 } 4566 }
4401 4567
4402 event_reply->Function = MPI2_FUNCTION_EVENT_NOTIFICATION; 4568 event_reply->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
@@ -4413,6 +4579,14 @@ _scsih_smart_predicted_fault(struct MPT2SAS_ADAPTER *ioc, u16 handle)
4413 event_data->SASAddress = cpu_to_le64(sas_target_priv_data->sas_address); 4579 event_data->SASAddress = cpu_to_le64(sas_target_priv_data->sas_address);
4414 mpt2sas_ctl_add_to_event_log(ioc, event_reply); 4580 mpt2sas_ctl_add_to_event_log(ioc, event_reply);
4415 kfree(event_reply); 4581 kfree(event_reply);
4582out:
4583 if (sas_device)
4584 sas_device_put(sas_device);
4585 return;
4586
4587out_unlock:
4588 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4589 goto out;
4416} 4590}
4417 4591
4418/** 4592/**
@@ -5148,14 +5322,13 @@ _scsih_check_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
5148 5322
5149 spin_lock_irqsave(&ioc->sas_device_lock, flags); 5323 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5150 sas_address = le64_to_cpu(sas_device_pg0.SASAddress); 5324 sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
5151 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, 5325 sas_device = __mpt2sas_get_sdev_by_addr(ioc,
5152 sas_address); 5326 sas_address);
5153 5327
5154 if (!sas_device) { 5328 if (!sas_device) {
5155 printk(MPT2SAS_ERR_FMT "device is not present " 5329 printk(MPT2SAS_ERR_FMT "device is not present "
5156 "handle(0x%04x), no sas_device!!!\n", ioc->name, handle); 5330 "handle(0x%04x), no sas_device!!!\n", ioc->name, handle);
5157 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 5331 goto out_unlock;
5158 return;
5159 } 5332 }
5160 5333
5161 if (unlikely(sas_device->handle != handle)) { 5334 if (unlikely(sas_device->handle != handle)) {
@@ -5172,19 +5345,24 @@ _scsih_check_device(struct MPT2SAS_ADAPTER *ioc, u16 handle)
5172 MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) { 5345 MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
5173 printk(MPT2SAS_ERR_FMT "device is not present " 5346 printk(MPT2SAS_ERR_FMT "device is not present "
5174 "handle(0x%04x), flags!!!\n", ioc->name, handle); 5347 "handle(0x%04x), flags!!!\n", ioc->name, handle);
5175 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 5348 goto out_unlock;
5176 return;
5177 } 5349 }
5178 5350
5179 /* check if there were any issues with discovery */ 5351 /* check if there were any issues with discovery */
5180 if (_scsih_check_access_status(ioc, sas_address, handle, 5352 if (_scsih_check_access_status(ioc, sas_address, handle,
5181 sas_device_pg0.AccessStatus)) { 5353 sas_device_pg0.AccessStatus))
5182 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 5354 goto out_unlock;
5183 return; 5355
5184 }
5185 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 5356 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5186 _scsih_ublock_io_device(ioc, sas_address); 5357 _scsih_ublock_io_device(ioc, sas_address);
5358 if (sas_device)
5359 sas_device_put(sas_device);
5360 return;
5187 5361
5362out_unlock:
5363 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5364 if (sas_device)
5365 sas_device_put(sas_device);
5188} 5366}
5189 5367
5190/** 5368/**
@@ -5208,7 +5386,6 @@ _scsih_add_device(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 phy_num, u8 is_pd)
5208 u32 ioc_status; 5386 u32 ioc_status;
5209 __le64 sas_address; 5387 __le64 sas_address;
5210 u32 device_info; 5388 u32 device_info;
5211 unsigned long flags;
5212 5389
5213 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0, 5390 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
5214 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) { 5391 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
@@ -5250,14 +5427,13 @@ _scsih_add_device(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 phy_num, u8 is_pd)
5250 return -1; 5427 return -1;
5251 } 5428 }
5252 5429
5253 5430 sas_device = mpt2sas_get_sdev_by_addr(ioc,
5254 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5255 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
5256 sas_address); 5431 sas_address);
5257 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5258 5432
5259 if (sas_device) 5433 if (sas_device) {
5434 sas_device_put(sas_device);
5260 return 0; 5435 return 0;
5436 }
5261 5437
5262 sas_device = kzalloc(sizeof(struct _sas_device), 5438 sas_device = kzalloc(sizeof(struct _sas_device),
5263 GFP_KERNEL); 5439 GFP_KERNEL);
@@ -5267,6 +5443,7 @@ _scsih_add_device(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 phy_num, u8 is_pd)
5267 return -1; 5443 return -1;
5268 } 5444 }
5269 5445
5446 kref_init(&sas_device->refcount);
5270 sas_device->handle = handle; 5447 sas_device->handle = handle;
5271 if (_scsih_get_sas_address(ioc, le16_to_cpu 5448 if (_scsih_get_sas_address(ioc, le16_to_cpu
5272 (sas_device_pg0.ParentDevHandle), 5449 (sas_device_pg0.ParentDevHandle),
@@ -5296,6 +5473,7 @@ _scsih_add_device(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 phy_num, u8 is_pd)
5296 else 5473 else
5297 _scsih_sas_device_add(ioc, sas_device); 5474 _scsih_sas_device_add(ioc, sas_device);
5298 5475
5476 sas_device_put(sas_device);
5299 return 0; 5477 return 0;
5300} 5478}
5301 5479
@@ -5344,7 +5522,6 @@ _scsih_remove_device(struct MPT2SAS_ADAPTER *ioc,
5344 "handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__, 5522 "handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, __func__,
5345 sas_device->handle, (unsigned long long) 5523 sas_device->handle, (unsigned long long)
5346 sas_device->sas_address)); 5524 sas_device->sas_address));
5347 kfree(sas_device);
5348} 5525}
5349/** 5526/**
5350 * _scsih_device_remove_by_handle - removing device object by handle 5527 * _scsih_device_remove_by_handle - removing device object by handle
@@ -5363,12 +5540,17 @@ _scsih_device_remove_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
5363 return; 5540 return;
5364 5541
5365 spin_lock_irqsave(&ioc->sas_device_lock, flags); 5542 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5366 sas_device = _scsih_sas_device_find_by_handle(ioc, handle); 5543 sas_device = __mpt2sas_get_sdev_by_handle(ioc, handle);
5367 if (sas_device) 5544 if (sas_device) {
5368 list_del(&sas_device->list); 5545 list_del_init(&sas_device->list);
5546 sas_device_put(sas_device);
5547 }
5369 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 5548 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5370 if (sas_device) 5549
5550 if (sas_device) {
5371 _scsih_remove_device(ioc, sas_device); 5551 _scsih_remove_device(ioc, sas_device);
5552 sas_device_put(sas_device);
5553 }
5372} 5554}
5373 5555
5374/** 5556/**
@@ -5389,13 +5571,17 @@ mpt2sas_device_remove_by_sas_address(struct MPT2SAS_ADAPTER *ioc,
5389 return; 5571 return;
5390 5572
5391 spin_lock_irqsave(&ioc->sas_device_lock, flags); 5573 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5392 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, 5574 sas_device = __mpt2sas_get_sdev_by_addr(ioc, sas_address);
5393 sas_address); 5575 if (sas_device) {
5394 if (sas_device) 5576 list_del_init(&sas_device->list);
5395 list_del(&sas_device->list); 5577 sas_device_put(sas_device);
5578 }
5396 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 5579 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5397 if (sas_device) 5580
5581 if (sas_device) {
5398 _scsih_remove_device(ioc, sas_device); 5582 _scsih_remove_device(ioc, sas_device);
5583 sas_device_put(sas_device);
5584 }
5399} 5585}
5400#ifdef CONFIG_SCSI_MPT2SAS_LOGGING 5586#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
5401/** 5587/**
@@ -5716,26 +5902,28 @@ _scsih_sas_device_status_change_event(struct MPT2SAS_ADAPTER *ioc,
5716 5902
5717 spin_lock_irqsave(&ioc->sas_device_lock, flags); 5903 spin_lock_irqsave(&ioc->sas_device_lock, flags);
5718 sas_address = le64_to_cpu(event_data->SASAddress); 5904 sas_address = le64_to_cpu(event_data->SASAddress);
5719 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, 5905 sas_device = __mpt2sas_get_sdev_by_addr(ioc,
5720 sas_address); 5906 sas_address);
5721 5907
5722 if (!sas_device || !sas_device->starget) { 5908 if (!sas_device || !sas_device->starget)
5723 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 5909 goto out;
5724 return;
5725 }
5726 5910
5727 target_priv_data = sas_device->starget->hostdata; 5911 target_priv_data = sas_device->starget->hostdata;
5728 if (!target_priv_data) { 5912 if (!target_priv_data)
5729 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 5913 goto out;
5730 return;
5731 }
5732 5914
5733 if (event_data->ReasonCode == 5915 if (event_data->ReasonCode ==
5734 MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET) 5916 MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET)
5735 target_priv_data->tm_busy = 1; 5917 target_priv_data->tm_busy = 1;
5736 else 5918 else
5737 target_priv_data->tm_busy = 0; 5919 target_priv_data->tm_busy = 0;
5920
5921out:
5922 if (sas_device)
5923 sas_device_put(sas_device);
5924
5738 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 5925 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
5926
5739} 5927}
5740 5928
5741#ifdef CONFIG_SCSI_MPT2SAS_LOGGING 5929#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
@@ -6123,7 +6311,7 @@ _scsih_sas_pd_expose(struct MPT2SAS_ADAPTER *ioc,
6123 u16 handle = le16_to_cpu(element->PhysDiskDevHandle); 6311 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
6124 6312
6125 spin_lock_irqsave(&ioc->sas_device_lock, flags); 6313 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6126 sas_device = _scsih_sas_device_find_by_handle(ioc, handle); 6314 sas_device = __mpt2sas_get_sdev_by_handle(ioc, handle);
6127 if (sas_device) { 6315 if (sas_device) {
6128 sas_device->volume_handle = 0; 6316 sas_device->volume_handle = 0;
6129 sas_device->volume_wwid = 0; 6317 sas_device->volume_wwid = 0;
@@ -6142,6 +6330,8 @@ _scsih_sas_pd_expose(struct MPT2SAS_ADAPTER *ioc,
6142 /* exposing raid component */ 6330 /* exposing raid component */
6143 if (starget) 6331 if (starget)
6144 starget_for_each_device(starget, NULL, _scsih_reprobe_lun); 6332 starget_for_each_device(starget, NULL, _scsih_reprobe_lun);
6333
6334 sas_device_put(sas_device);
6145} 6335}
6146 6336
6147/** 6337/**
@@ -6170,7 +6360,7 @@ _scsih_sas_pd_hide(struct MPT2SAS_ADAPTER *ioc,
6170 &volume_wwid); 6360 &volume_wwid);
6171 6361
6172 spin_lock_irqsave(&ioc->sas_device_lock, flags); 6362 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6173 sas_device = _scsih_sas_device_find_by_handle(ioc, handle); 6363 sas_device = __mpt2sas_get_sdev_by_handle(ioc, handle);
6174 if (sas_device) { 6364 if (sas_device) {
6175 set_bit(handle, ioc->pd_handles); 6365 set_bit(handle, ioc->pd_handles);
6176 if (sas_device->starget && sas_device->starget->hostdata) { 6366 if (sas_device->starget && sas_device->starget->hostdata) {
@@ -6189,6 +6379,8 @@ _scsih_sas_pd_hide(struct MPT2SAS_ADAPTER *ioc,
6189 /* hiding raid component */ 6379 /* hiding raid component */
6190 if (starget) 6380 if (starget)
6191 starget_for_each_device(starget, (void *)1, _scsih_reprobe_lun); 6381 starget_for_each_device(starget, (void *)1, _scsih_reprobe_lun);
6382
6383 sas_device_put(sas_device);
6192} 6384}
6193 6385
6194/** 6386/**
@@ -6221,7 +6413,6 @@ _scsih_sas_pd_add(struct MPT2SAS_ADAPTER *ioc,
6221 Mpi2EventIrConfigElement_t *element) 6413 Mpi2EventIrConfigElement_t *element)
6222{ 6414{
6223 struct _sas_device *sas_device; 6415 struct _sas_device *sas_device;
6224 unsigned long flags;
6225 u16 handle = le16_to_cpu(element->PhysDiskDevHandle); 6416 u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
6226 Mpi2ConfigReply_t mpi_reply; 6417 Mpi2ConfigReply_t mpi_reply;
6227 Mpi2SasDevicePage0_t sas_device_pg0; 6418 Mpi2SasDevicePage0_t sas_device_pg0;
@@ -6231,11 +6422,11 @@ _scsih_sas_pd_add(struct MPT2SAS_ADAPTER *ioc,
6231 6422
6232 set_bit(handle, ioc->pd_handles); 6423 set_bit(handle, ioc->pd_handles);
6233 6424
6234 spin_lock_irqsave(&ioc->sas_device_lock, flags); 6425 sas_device = mpt2sas_get_sdev_by_handle(ioc, handle);
6235 sas_device = _scsih_sas_device_find_by_handle(ioc, handle); 6426 if (sas_device) {
6236 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 6427 sas_device_put(sas_device);
6237 if (sas_device)
6238 return; 6428 return;
6429 }
6239 6430
6240 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0, 6431 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
6241 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) { 6432 MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
@@ -6509,7 +6700,6 @@ _scsih_sas_ir_physical_disk_event(struct MPT2SAS_ADAPTER *ioc,
6509 u16 handle, parent_handle; 6700 u16 handle, parent_handle;
6510 u32 state; 6701 u32 state;
6511 struct _sas_device *sas_device; 6702 struct _sas_device *sas_device;
6512 unsigned long flags;
6513 Mpi2ConfigReply_t mpi_reply; 6703 Mpi2ConfigReply_t mpi_reply;
6514 Mpi2SasDevicePage0_t sas_device_pg0; 6704 Mpi2SasDevicePage0_t sas_device_pg0;
6515 u32 ioc_status; 6705 u32 ioc_status;
@@ -6542,12 +6732,11 @@ _scsih_sas_ir_physical_disk_event(struct MPT2SAS_ADAPTER *ioc,
6542 if (!ioc->is_warpdrive) 6732 if (!ioc->is_warpdrive)
6543 set_bit(handle, ioc->pd_handles); 6733 set_bit(handle, ioc->pd_handles);
6544 6734
6545 spin_lock_irqsave(&ioc->sas_device_lock, flags); 6735 sas_device = mpt2sas_get_sdev_by_handle(ioc, handle);
6546 sas_device = _scsih_sas_device_find_by_handle(ioc, handle); 6736 if (sas_device) {
6547 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 6737 sas_device_put(sas_device);
6548
6549 if (sas_device)
6550 return; 6738 return;
6739 }
6551 6740
6552 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, 6741 if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
6553 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, 6742 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
@@ -7015,6 +7204,7 @@ _scsih_remove_unresponding_sas_devices(struct MPT2SAS_ADAPTER *ioc)
7015 struct _raid_device *raid_device, *raid_device_next; 7204 struct _raid_device *raid_device, *raid_device_next;
7016 struct list_head tmp_list; 7205 struct list_head tmp_list;
7017 unsigned long flags; 7206 unsigned long flags;
7207 LIST_HEAD(head);
7018 7208
7019 printk(MPT2SAS_INFO_FMT "removing unresponding devices: start\n", 7209 printk(MPT2SAS_INFO_FMT "removing unresponding devices: start\n",
7020 ioc->name); 7210 ioc->name);
@@ -7022,14 +7212,29 @@ _scsih_remove_unresponding_sas_devices(struct MPT2SAS_ADAPTER *ioc)
7022 /* removing unresponding end devices */ 7212 /* removing unresponding end devices */
7023 printk(MPT2SAS_INFO_FMT "removing unresponding devices: end-devices\n", 7213 printk(MPT2SAS_INFO_FMT "removing unresponding devices: end-devices\n",
7024 ioc->name); 7214 ioc->name);
7215
7216 /*
7217 * Iterate, pulling off devices marked as non-responding. We become the
7218 * owner for the reference the list had on any object we prune.
7219 */
7220 spin_lock_irqsave(&ioc->sas_device_lock, flags);
7025 list_for_each_entry_safe(sas_device, sas_device_next, 7221 list_for_each_entry_safe(sas_device, sas_device_next,
7026 &ioc->sas_device_list, list) { 7222 &ioc->sas_device_list, list) {
7027 if (!sas_device->responding) 7223 if (!sas_device->responding)
7028 mpt2sas_device_remove_by_sas_address(ioc, 7224 list_move_tail(&sas_device->list, &head);
7029 sas_device->sas_address);
7030 else 7225 else
7031 sas_device->responding = 0; 7226 sas_device->responding = 0;
7032 } 7227 }
7228 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
7229
7230 /*
7231 * Now, uninitialize and remove the unresponding devices we pruned.
7232 */
7233 list_for_each_entry_safe(sas_device, sas_device_next, &head, list) {
7234 _scsih_remove_device(ioc, sas_device);
7235 list_del_init(&sas_device->list);
7236 sas_device_put(sas_device);
7237 }
7033 7238
7034 /* removing unresponding volumes */ 7239 /* removing unresponding volumes */
7035 if (ioc->ir_firmware) { 7240 if (ioc->ir_firmware) {
@@ -7179,11 +7384,11 @@ _scsih_scan_for_devices_after_reset(struct MPT2SAS_ADAPTER *ioc)
7179 } 7384 }
7180 phys_disk_num = pd_pg0.PhysDiskNum; 7385 phys_disk_num = pd_pg0.PhysDiskNum;
7181 handle = le16_to_cpu(pd_pg0.DevHandle); 7386 handle = le16_to_cpu(pd_pg0.DevHandle);
7182 spin_lock_irqsave(&ioc->sas_device_lock, flags); 7387 sas_device = mpt2sas_get_sdev_by_handle(ioc, handle);
7183 sas_device = _scsih_sas_device_find_by_handle(ioc, handle); 7388 if (sas_device) {
7184 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 7389 sas_device_put(sas_device);
7185 if (sas_device)
7186 continue; 7390 continue;
7391 }
7187 if (mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, 7392 if (mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply,
7188 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, 7393 &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
7189 handle) != 0) 7394 handle) != 0)
@@ -7302,12 +7507,12 @@ _scsih_scan_for_devices_after_reset(struct MPT2SAS_ADAPTER *ioc)
7302 if (!(_scsih_is_end_device( 7507 if (!(_scsih_is_end_device(
7303 le32_to_cpu(sas_device_pg0.DeviceInfo)))) 7508 le32_to_cpu(sas_device_pg0.DeviceInfo))))
7304 continue; 7509 continue;
7305 spin_lock_irqsave(&ioc->sas_device_lock, flags); 7510 sas_device = mpt2sas_get_sdev_by_addr(ioc,
7306 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
7307 le64_to_cpu(sas_device_pg0.SASAddress)); 7511 le64_to_cpu(sas_device_pg0.SASAddress));
7308 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 7512 if (sas_device) {
7309 if (sas_device) 7513 sas_device_put(sas_device);
7310 continue; 7514 continue;
7515 }
7311 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle); 7516 parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
7312 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address)) { 7517 if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address)) {
7313 printk(MPT2SAS_INFO_FMT "\tBEFORE adding end device: " 7518 printk(MPT2SAS_INFO_FMT "\tBEFORE adding end device: "
@@ -7410,17 +7615,27 @@ _firmware_event_work(struct work_struct *work)
7410 struct fw_event_work, delayed_work.work); 7615 struct fw_event_work, delayed_work.work);
7411 struct MPT2SAS_ADAPTER *ioc = fw_event->ioc; 7616 struct MPT2SAS_ADAPTER *ioc = fw_event->ioc;
7412 7617
7618 _scsih_fw_event_del_from_list(ioc, fw_event);
7619
7413 /* the queue is being flushed so ignore this event */ 7620 /* the queue is being flushed so ignore this event */
7414 if (ioc->remove_host || 7621 if (ioc->remove_host || ioc->pci_error_recovery) {
7415 ioc->pci_error_recovery) { 7622 fw_event_work_put(fw_event);
7416 _scsih_fw_event_free(ioc, fw_event);
7417 return; 7623 return;
7418 } 7624 }
7419 7625
7420 switch (fw_event->event) { 7626 switch (fw_event->event) {
7421 case MPT2SAS_REMOVE_UNRESPONDING_DEVICES: 7627 case MPT2SAS_REMOVE_UNRESPONDING_DEVICES:
7422 while (scsi_host_in_recovery(ioc->shost) || ioc->shost_recovery) 7628 while (scsi_host_in_recovery(ioc->shost) ||
7629 ioc->shost_recovery) {
7630 /*
7631 * If we're unloading, bail. Otherwise, this can become
7632 * an infinite loop.
7633 */
7634 if (ioc->remove_host)
7635 goto out;
7636
7423 ssleep(1); 7637 ssleep(1);
7638 }
7424 _scsih_remove_unresponding_sas_devices(ioc); 7639 _scsih_remove_unresponding_sas_devices(ioc);
7425 _scsih_scan_for_devices_after_reset(ioc); 7640 _scsih_scan_for_devices_after_reset(ioc);
7426 break; 7641 break;
@@ -7469,7 +7684,8 @@ _firmware_event_work(struct work_struct *work)
7469 _scsih_sas_ir_operation_status_event(ioc, fw_event); 7684 _scsih_sas_ir_operation_status_event(ioc, fw_event);
7470 break; 7685 break;
7471 } 7686 }
7472 _scsih_fw_event_free(ioc, fw_event); 7687out:
7688 fw_event_work_put(fw_event);
7473} 7689}
7474 7690
7475/** 7691/**
@@ -7607,7 +7823,7 @@ mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index,
7607 } 7823 }
7608 7824
7609 sz = le16_to_cpu(mpi_reply->EventDataLength) * 4; 7825 sz = le16_to_cpu(mpi_reply->EventDataLength) * 4;
7610 fw_event = kzalloc(sizeof(*fw_event) + sz, GFP_ATOMIC); 7826 fw_event = alloc_fw_event_work(sz);
7611 if (!fw_event) { 7827 if (!fw_event) {
7612 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", 7828 printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
7613 ioc->name, __FILE__, __LINE__, __func__); 7829 ioc->name, __FILE__, __LINE__, __func__);
@@ -7620,6 +7836,7 @@ mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index,
7620 fw_event->VP_ID = mpi_reply->VP_ID; 7836 fw_event->VP_ID = mpi_reply->VP_ID;
7621 fw_event->event = event; 7837 fw_event->event = event;
7622 _scsih_fw_event_add(ioc, fw_event); 7838 _scsih_fw_event_add(ioc, fw_event);
7839 fw_event_work_put(fw_event);
7623 return; 7840 return;
7624} 7841}
7625 7842
@@ -7867,7 +8084,9 @@ _scsih_remove(struct pci_dev *pdev)
7867 sas_remove_host(shost); 8084 sas_remove_host(shost);
7868 scsi_remove_host(shost); 8085 scsi_remove_host(shost);
7869 mpt2sas_base_detach(ioc); 8086 mpt2sas_base_detach(ioc);
8087 spin_lock(&gioc_lock);
7870 list_del(&ioc->list); 8088 list_del(&ioc->list);
8089 spin_unlock(&gioc_lock);
7871 scsi_host_put(shost); 8090 scsi_host_put(shost);
7872} 8091}
7873 8092
@@ -7966,6 +8185,48 @@ _scsih_probe_raid(struct MPT2SAS_ADAPTER *ioc)
7966 } 8185 }
7967} 8186}
7968 8187
8188static struct _sas_device *get_next_sas_device(struct MPT2SAS_ADAPTER *ioc)
8189{
8190 struct _sas_device *sas_device = NULL;
8191 unsigned long flags;
8192
8193 spin_lock_irqsave(&ioc->sas_device_lock, flags);
8194 if (!list_empty(&ioc->sas_device_init_list)) {
8195 sas_device = list_first_entry(&ioc->sas_device_init_list,
8196 struct _sas_device, list);
8197 sas_device_get(sas_device);
8198 }
8199 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
8200
8201 return sas_device;
8202}
8203
8204static void sas_device_make_active(struct MPT2SAS_ADAPTER *ioc,
8205 struct _sas_device *sas_device)
8206{
8207 unsigned long flags;
8208
8209 spin_lock_irqsave(&ioc->sas_device_lock, flags);
8210
8211 /*
8212 * Since we dropped the lock during the call to port_add(), we need to
8213 * be careful here that somebody else didn't move or delete this item
8214 * while we were busy with other things.
8215 *
8216 * If it was on the list, we need a put() for the reference the list
8217 * had. Either way, we need a get() for the destination list.
8218 */
8219 if (!list_empty(&sas_device->list)) {
8220 list_del_init(&sas_device->list);
8221 sas_device_put(sas_device);
8222 }
8223
8224 sas_device_get(sas_device);
8225 list_add_tail(&sas_device->list, &ioc->sas_device_list);
8226
8227 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
8228}
8229
7969/** 8230/**
7970 * _scsih_probe_sas - reporting sas devices to sas transport 8231 * _scsih_probe_sas - reporting sas devices to sas transport
7971 * @ioc: per adapter object 8232 * @ioc: per adapter object
@@ -7975,34 +8236,30 @@ _scsih_probe_raid(struct MPT2SAS_ADAPTER *ioc)
7975static void 8236static void
7976_scsih_probe_sas(struct MPT2SAS_ADAPTER *ioc) 8237_scsih_probe_sas(struct MPT2SAS_ADAPTER *ioc)
7977{ 8238{
7978 struct _sas_device *sas_device, *next; 8239 struct _sas_device *sas_device;
7979 unsigned long flags;
7980
7981 /* SAS Device List */
7982 list_for_each_entry_safe(sas_device, next, &ioc->sas_device_init_list,
7983 list) {
7984 8240
7985 if (ioc->hide_drives) 8241 if (ioc->hide_drives)
7986 continue; 8242 return;
7987 8243
8244 while ((sas_device = get_next_sas_device(ioc))) {
7988 if (!mpt2sas_transport_port_add(ioc, sas_device->handle, 8245 if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
7989 sas_device->sas_address_parent)) { 8246 sas_device->sas_address_parent)) {
7990 list_del(&sas_device->list); 8247 _scsih_sas_device_remove(ioc, sas_device);
7991 kfree(sas_device); 8248 sas_device_put(sas_device);
7992 continue; 8249 continue;
7993 } else if (!sas_device->starget) { 8250 } else if (!sas_device->starget) {
7994 if (!ioc->is_driver_loading) { 8251 if (!ioc->is_driver_loading) {
7995 mpt2sas_transport_port_remove(ioc, 8252 mpt2sas_transport_port_remove(ioc,
7996 sas_device->sas_address, 8253 sas_device->sas_address,
7997 sas_device->sas_address_parent); 8254 sas_device->sas_address_parent);
7998 list_del(&sas_device->list); 8255 _scsih_sas_device_remove(ioc, sas_device);
7999 kfree(sas_device); 8256 sas_device_put(sas_device);
8000 continue; 8257 continue;
8001 } 8258 }
8002 } 8259 }
8003 spin_lock_irqsave(&ioc->sas_device_lock, flags); 8260
8004 list_move_tail(&sas_device->list, &ioc->sas_device_list); 8261 sas_device_make_active(ioc, sas_device);
8005 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 8262 sas_device_put(sas_device);
8006 } 8263 }
8007} 8264}
8008 8265
@@ -8142,7 +8399,9 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
8142 ioc = shost_priv(shost); 8399 ioc = shost_priv(shost);
8143 memset(ioc, 0, sizeof(struct MPT2SAS_ADAPTER)); 8400 memset(ioc, 0, sizeof(struct MPT2SAS_ADAPTER));
8144 INIT_LIST_HEAD(&ioc->list); 8401 INIT_LIST_HEAD(&ioc->list);
8402 spin_lock(&gioc_lock);
8145 list_add_tail(&ioc->list, &mpt2sas_ioc_list); 8403 list_add_tail(&ioc->list, &mpt2sas_ioc_list);
8404 spin_unlock(&gioc_lock);
8146 ioc->shost = shost; 8405 ioc->shost = shost;
8147 ioc->id = mpt_ids++; 8406 ioc->id = mpt_ids++;
8148 sprintf(ioc->name, "%s%d", MPT2SAS_DRIVER_NAME, ioc->id); 8407 sprintf(ioc->name, "%s%d", MPT2SAS_DRIVER_NAME, ioc->id);
@@ -8167,6 +8426,8 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
8167 ioc->schedule_dead_ioc_flush_running_cmds = &_scsih_flush_running_cmds; 8426 ioc->schedule_dead_ioc_flush_running_cmds = &_scsih_flush_running_cmds;
8168 /* misc semaphores and spin locks */ 8427 /* misc semaphores and spin locks */
8169 mutex_init(&ioc->reset_in_progress_mutex); 8428 mutex_init(&ioc->reset_in_progress_mutex);
8429 /* initializing pci_access_mutex lock */
8430 mutex_init(&ioc->pci_access_mutex);
8170 spin_lock_init(&ioc->ioc_reset_in_progress_lock); 8431 spin_lock_init(&ioc->ioc_reset_in_progress_lock);
8171 spin_lock_init(&ioc->scsi_lookup_lock); 8432 spin_lock_init(&ioc->scsi_lookup_lock);
8172 spin_lock_init(&ioc->sas_device_lock); 8433 spin_lock_init(&ioc->sas_device_lock);
@@ -8269,7 +8530,9 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
8269 out_attach_fail: 8530 out_attach_fail:
8270 destroy_workqueue(ioc->firmware_event_thread); 8531 destroy_workqueue(ioc->firmware_event_thread);
8271 out_thread_fail: 8532 out_thread_fail:
8533 spin_lock(&gioc_lock);
8272 list_del(&ioc->list); 8534 list_del(&ioc->list);
8535 spin_unlock(&gioc_lock);
8273 scsi_host_put(shost); 8536 scsi_host_put(shost);
8274 return rv; 8537 return rv;
8275} 8538}
diff --git a/drivers/scsi/mpt2sas/mpt2sas_transport.c b/drivers/scsi/mpt2sas/mpt2sas_transport.c
index ff2500ab9ba4..af868009395d 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_transport.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_transport.c
@@ -1323,15 +1323,17 @@ _transport_get_enclosure_identifier(struct sas_rphy *rphy, u64 *identifier)
1323 int rc; 1323 int rc;
1324 1324
1325 spin_lock_irqsave(&ioc->sas_device_lock, flags); 1325 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1326 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, 1326 sas_device = __mpt2sas_get_sdev_by_addr(ioc,
1327 rphy->identify.sas_address); 1327 rphy->identify.sas_address);
1328 if (sas_device) { 1328 if (sas_device) {
1329 *identifier = sas_device->enclosure_logical_id; 1329 *identifier = sas_device->enclosure_logical_id;
1330 rc = 0; 1330 rc = 0;
1331 sas_device_put(sas_device);
1331 } else { 1332 } else {
1332 *identifier = 0; 1333 *identifier = 0;
1333 rc = -ENXIO; 1334 rc = -ENXIO;
1334 } 1335 }
1336
1335 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 1337 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1336 return rc; 1338 return rc;
1337} 1339}
@@ -1351,12 +1353,14 @@ _transport_get_bay_identifier(struct sas_rphy *rphy)
1351 int rc; 1353 int rc;
1352 1354
1353 spin_lock_irqsave(&ioc->sas_device_lock, flags); 1355 spin_lock_irqsave(&ioc->sas_device_lock, flags);
1354 sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, 1356 sas_device = __mpt2sas_get_sdev_by_addr(ioc,
1355 rphy->identify.sas_address); 1357 rphy->identify.sas_address);
1356 if (sas_device) 1358 if (sas_device) {
1357 rc = sas_device->slot; 1359 rc = sas_device->slot;
1358 else 1360 sas_device_put(sas_device);
1361 } else {
1359 rc = -ENXIO; 1362 rc = -ENXIO;
1363 }
1360 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 1364 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1361 return rc; 1365 return rc;
1362} 1366}
diff --git a/drivers/scsi/mpt3sas/mpi/mpi2.h b/drivers/scsi/mpt3sas/mpi/mpi2.h
index c34c1157907b..ec27ad2d186f 100644
--- a/drivers/scsi/mpt3sas/mpi/mpi2.h
+++ b/drivers/scsi/mpt3sas/mpi/mpi2.h
@@ -8,7 +8,7 @@
8 * scatter/gather formats. 8 * scatter/gather formats.
9 * Creation Date: June 21, 2006 9 * Creation Date: June 21, 2006
10 * 10 *
11 * mpi2.h Version: 02.00.31 11 * mpi2.h Version: 02.00.35
12 * 12 *
13 * NOTE: Names (typedefs, defines, etc.) beginning with an MPI25 or Mpi25 13 * NOTE: Names (typedefs, defines, etc.) beginning with an MPI25 or Mpi25
14 * prefix are for use only on MPI v2.5 products, and must not be used 14 * prefix are for use only on MPI v2.5 products, and must not be used
@@ -88,6 +88,10 @@
88 * Added MPI25_SUP_REPLY_POST_HOST_INDEX_OFFSET. 88 * Added MPI25_SUP_REPLY_POST_HOST_INDEX_OFFSET.
89 * 04-09-13 02.00.30 Bumped MPI2_HEADER_VERSION_UNIT. 89 * 04-09-13 02.00.30 Bumped MPI2_HEADER_VERSION_UNIT.
90 * 04-17-13 02.00.31 Bumped MPI2_HEADER_VERSION_UNIT. 90 * 04-17-13 02.00.31 Bumped MPI2_HEADER_VERSION_UNIT.
91 * 08-19-13 02.00.32 Bumped MPI2_HEADER_VERSION_UNIT.
92 * 12-05-13 02.00.33 Bumped MPI2_HEADER_VERSION_UNIT.
93 * 01-08-14 02.00.34 Bumped MPI2_HEADER_VERSION_UNIT
94 * 06-13-14 02.00.35 Bumped MPI2_HEADER_VERSION_UNIT.
91 * -------------------------------------------------------------------------- 95 * --------------------------------------------------------------------------
92 */ 96 */
93 97
@@ -121,7 +125,7 @@
121#define MPI2_VERSION_02_05 (0x0205) 125#define MPI2_VERSION_02_05 (0x0205)
122 126
123/*Unit and Dev versioning for this MPI header set */ 127/*Unit and Dev versioning for this MPI header set */
124#define MPI2_HEADER_VERSION_UNIT (0x1F) 128#define MPI2_HEADER_VERSION_UNIT (0x23)
125#define MPI2_HEADER_VERSION_DEV (0x00) 129#define MPI2_HEADER_VERSION_DEV (0x00)
126#define MPI2_HEADER_VERSION_UNIT_MASK (0xFF00) 130#define MPI2_HEADER_VERSION_UNIT_MASK (0xFF00)
127#define MPI2_HEADER_VERSION_UNIT_SHIFT (8) 131#define MPI2_HEADER_VERSION_UNIT_SHIFT (8)
diff --git a/drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h b/drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h
index e261a3153bb3..581fdb375db5 100644
--- a/drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h
+++ b/drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h
@@ -6,7 +6,7 @@
6 * Title: MPI Configuration messages and pages 6 * Title: MPI Configuration messages and pages
7 * Creation Date: November 10, 2006 7 * Creation Date: November 10, 2006
8 * 8 *
9 * mpi2_cnfg.h Version: 02.00.26 9 * mpi2_cnfg.h Version: 02.00.29
10 * 10 *
11 * NOTE: Names (typedefs, defines, etc.) beginning with an MPI25 or Mpi25 11 * NOTE: Names (typedefs, defines, etc.) beginning with an MPI25 or Mpi25
12 * prefix are for use only on MPI v2.5 products, and must not be used 12 * prefix are for use only on MPI v2.5 products, and must not be used
@@ -165,6 +165,20 @@
165 * match the specification. 165 * match the specification.
166 * 08-19-13 02.00.26 Added reserved words to MPI2_CONFIG_PAGE_IO_UNIT_7 for 166 * 08-19-13 02.00.26 Added reserved words to MPI2_CONFIG_PAGE_IO_UNIT_7 for
167 * future use. 167 * future use.
168 * 12-05-13 02.00.27 Added MPI2_MANPAGE7_FLAG_BASE_ENCLOSURE_LEVEL for
169 * MPI2_CONFIG_PAGE_MAN_7.
170 * Added EnclosureLevel and ConnectorName fields to
171 * MPI2_CONFIG_PAGE_SAS_DEV_0.
172 * Added MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID for
173 * MPI2_CONFIG_PAGE_SAS_DEV_0.
174 * Added EnclosureLevel field to
175 * MPI2_CONFIG_PAGE_SAS_ENCLOSURE_0.
176 * Added MPI2_SAS_ENCLS0_FLAGS_ENCL_LEVEL_VALID for
177 * MPI2_CONFIG_PAGE_SAS_ENCLOSURE_0.
178 * 01-08-14 02.00.28 Added more defines for the BiosOptions field of
179 * MPI2_CONFIG_PAGE_BIOS_1.
180 * 06-13-14 02.00.29 Added SSUTimeout field to MPI2_CONFIG_PAGE_BIOS_1, and
181 * more defines for the BiosOptions field..
168 * -------------------------------------------------------------------------- 182 * --------------------------------------------------------------------------
169 */ 183 */
170 184
@@ -724,6 +738,7 @@ typedef struct _MPI2_CONFIG_PAGE_MAN_7 {
724#define MPI2_MANUFACTURING7_PAGEVERSION (0x01) 738#define MPI2_MANUFACTURING7_PAGEVERSION (0x01)
725 739
726/*defines for the Flags field */ 740/*defines for the Flags field */
741#define MPI2_MANPAGE7_FLAG_BASE_ENCLOSURE_LEVEL (0x00000008)
727#define MPI2_MANPAGE7_FLAG_EVENTREPLAY_SLOT_ORDER (0x00000002) 742#define MPI2_MANPAGE7_FLAG_EVENTREPLAY_SLOT_ORDER (0x00000002)
728#define MPI2_MANPAGE7_FLAG_USE_SLOT_INFO (0x00000001) 743#define MPI2_MANPAGE7_FLAG_USE_SLOT_INFO (0x00000001)
729 744
@@ -1311,7 +1326,9 @@ typedef struct _MPI2_CONFIG_PAGE_BIOS_1 {
1311 MPI2_CONFIG_PAGE_HEADER Header; /*0x00 */ 1326 MPI2_CONFIG_PAGE_HEADER Header; /*0x00 */
1312 U32 BiosOptions; /*0x04 */ 1327 U32 BiosOptions; /*0x04 */
1313 U32 IOCSettings; /*0x08 */ 1328 U32 IOCSettings; /*0x08 */
1314 U32 Reserved1; /*0x0C */ 1329 U8 SSUTimeout; /*0x0C */
1330 U8 Reserved1; /*0x0D */
1331 U16 Reserved2; /*0x0E */
1315 U32 DeviceSettings; /*0x10 */ 1332 U32 DeviceSettings; /*0x10 */
1316 U16 NumberOfDevices; /*0x14 */ 1333 U16 NumberOfDevices; /*0x14 */
1317 U16 UEFIVersion; /*0x16 */ 1334 U16 UEFIVersion; /*0x16 */
@@ -1323,9 +1340,24 @@ typedef struct _MPI2_CONFIG_PAGE_BIOS_1 {
1323 *PTR_MPI2_CONFIG_PAGE_BIOS_1, 1340 *PTR_MPI2_CONFIG_PAGE_BIOS_1,
1324 Mpi2BiosPage1_t, *pMpi2BiosPage1_t; 1341 Mpi2BiosPage1_t, *pMpi2BiosPage1_t;
1325 1342
1326#define MPI2_BIOSPAGE1_PAGEVERSION (0x05) 1343#define MPI2_BIOSPAGE1_PAGEVERSION (0x07)
1327 1344
1328/*values for BIOS Page 1 BiosOptions field */ 1345/*values for BIOS Page 1 BiosOptions field */
1346#define MPI2_BIOSPAGE1_OPTIONS_PNS_MASK (0x00003800)
1347#define MPI2_BIOSPAGE1_OPTIONS_PNS_PBDHL (0x00000000)
1348#define MPI2_BIOSPAGE1_OPTIONS_PNS_ENCSLOSURE (0x00000800)
1349#define MPI2_BIOSPAGE1_OPTIONS_PNS_LWWID (0x00001000)
1350#define MPI2_BIOSPAGE1_OPTIONS_PNS_PSENS (0x00001800)
1351#define MPI2_BIOSPAGE1_OPTIONS_PNS_ESPHY (0x00002000)
1352
1353#define MPI2_BIOSPAGE1_OPTIONS_X86_DISABLE_BIOS (0x00000400)
1354
1355#define MPI2_BIOSPAGE1_OPTIONS_MASK_REGISTRATION_UEFI_BSD (0x00000300)
1356#define MPI2_BIOSPAGE1_OPTIONS_USE_BIT0_REGISTRATION_UEFI_BSD (0x00000000)
1357#define MPI2_BIOSPAGE1_OPTIONS_FULL_REGISTRATION_UEFI_BSD (0x00000100)
1358#define MPI2_BIOSPAGE1_OPTIONS_ADAPTER_REGISTRATION_UEFI_BSD (0x00000200)
1359#define MPI2_BIOSPAGE1_OPTIONS_DISABLE_REGISTRATION_UEFI_BSD (0x00000300)
1360
1329#define MPI2_BIOSPAGE1_OPTIONS_MASK_OEM_ID (0x000000F0) 1361#define MPI2_BIOSPAGE1_OPTIONS_MASK_OEM_ID (0x000000F0)
1330#define MPI2_BIOSPAGE1_OPTIONS_LSI_OEM_ID (0x00000000) 1362#define MPI2_BIOSPAGE1_OPTIONS_LSI_OEM_ID (0x00000000)
1331 1363
@@ -2633,9 +2665,9 @@ typedef struct _MPI2_CONFIG_PAGE_SAS_DEV_0 {
2633 U8 2665 U8
2634 ControlGroup; /*0x2E */ 2666 ControlGroup; /*0x2E */
2635 U8 2667 U8
2636 Reserved1; /*0x2F */ 2668 EnclosureLevel; /*0x2F */
2637 U32 2669 U32
2638 Reserved2; /*0x30 */ 2670 ConnectorName[4]; /*0x30 */
2639 U32 2671 U32
2640 Reserved3; /*0x34 */ 2672 Reserved3; /*0x34 */
2641} MPI2_CONFIG_PAGE_SAS_DEV_0, 2673} MPI2_CONFIG_PAGE_SAS_DEV_0,
@@ -2643,7 +2675,7 @@ typedef struct _MPI2_CONFIG_PAGE_SAS_DEV_0 {
2643 Mpi2SasDevicePage0_t, 2675 Mpi2SasDevicePage0_t,
2644 *pMpi2SasDevicePage0_t; 2676 *pMpi2SasDevicePage0_t;
2645 2677
2646#define MPI2_SASDEVICE0_PAGEVERSION (0x08) 2678#define MPI2_SASDEVICE0_PAGEVERSION (0x09)
2647 2679
2648/*values for SAS Device Page 0 AccessStatus field */ 2680/*values for SAS Device Page 0 AccessStatus field */
2649#define MPI2_SAS_DEVICE0_ASTATUS_NO_ERRORS (0x00) 2681#define MPI2_SAS_DEVICE0_ASTATUS_NO_ERRORS (0x00)
@@ -2683,6 +2715,7 @@ typedef struct _MPI2_CONFIG_PAGE_SAS_DEV_0 {
2683#define MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED (0x0020) 2715#define MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED (0x0020)
2684#define MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED (0x0010) 2716#define MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED (0x0010)
2685#define MPI2_SAS_DEVICE0_FLAGS_PORT_SELECTOR_ATTACH (0x0008) 2717#define MPI2_SAS_DEVICE0_FLAGS_PORT_SELECTOR_ATTACH (0x0008)
2718#define MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID (0x0002)
2686#define MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT (0x0001) 2719#define MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT (0x0001)
2687 2720
2688 2721
@@ -3019,8 +3052,10 @@ typedef struct _MPI2_CONFIG_PAGE_SAS_ENCLOSURE_0 {
3019 NumSlots; /*0x18 */ 3052 NumSlots; /*0x18 */
3020 U16 3053 U16
3021 StartSlot; /*0x1A */ 3054 StartSlot; /*0x1A */
3022 U16 3055 U8
3023 Reserved2; /*0x1C */ 3056 Reserved2; /*0x1C */
3057 U8
3058 EnclosureLevel; /*0x1D */
3024 U16 3059 U16
3025 SEPDevHandle; /*0x1E */ 3060 SEPDevHandle; /*0x1E */
3026 U32 3061 U32
@@ -3031,9 +3066,10 @@ typedef struct _MPI2_CONFIG_PAGE_SAS_ENCLOSURE_0 {
3031 *PTR_MPI2_CONFIG_PAGE_SAS_ENCLOSURE_0, 3066 *PTR_MPI2_CONFIG_PAGE_SAS_ENCLOSURE_0,
3032 Mpi2SasEnclosurePage0_t, *pMpi2SasEnclosurePage0_t; 3067 Mpi2SasEnclosurePage0_t, *pMpi2SasEnclosurePage0_t;
3033 3068
3034#define MPI2_SASENCLOSURE0_PAGEVERSION (0x03) 3069#define MPI2_SASENCLOSURE0_PAGEVERSION (0x04)
3035 3070
3036/*values for SAS Enclosure Page 0 Flags field */ 3071/*values for SAS Enclosure Page 0 Flags field */
3072#define MPI2_SAS_ENCLS0_FLAGS_ENCL_LEVEL_VALID (0x0010)
3037#define MPI2_SAS_ENCLS0_FLAGS_MNG_MASK (0x000F) 3073#define MPI2_SAS_ENCLS0_FLAGS_MNG_MASK (0x000F)
3038#define MPI2_SAS_ENCLS0_FLAGS_MNG_UNKNOWN (0x0000) 3074#define MPI2_SAS_ENCLS0_FLAGS_MNG_UNKNOWN (0x0000)
3039#define MPI2_SAS_ENCLS0_FLAGS_MNG_IOC_SES (0x0001) 3075#define MPI2_SAS_ENCLS0_FLAGS_MNG_IOC_SES (0x0001)
diff --git a/drivers/scsi/mpt3sas/mpi/mpi2_ioc.h b/drivers/scsi/mpt3sas/mpi/mpi2_ioc.h
index 490830957806..d7598cc4bb8e 100644
--- a/drivers/scsi/mpt3sas/mpi/mpi2_ioc.h
+++ b/drivers/scsi/mpt3sas/mpi/mpi2_ioc.h
@@ -6,7 +6,7 @@
6 * Title: MPI IOC, Port, Event, FW Download, and FW Upload messages 6 * Title: MPI IOC, Port, Event, FW Download, and FW Upload messages
7 * Creation Date: October 11, 2006 7 * Creation Date: October 11, 2006
8 * 8 *
9 * mpi2_ioc.h Version: 02.00.23 9 * mpi2_ioc.h Version: 02.00.24
10 * 10 *
11 * NOTE: Names (typedefs, defines, etc.) beginning with an MPI25 or Mpi25 11 * NOTE: Names (typedefs, defines, etc.) beginning with an MPI25 or Mpi25
12 * prefix are for use only on MPI v2.5 products, and must not be used 12 * prefix are for use only on MPI v2.5 products, and must not be used
@@ -132,6 +132,7 @@
132 * Added MPI2_IOCFACTS_CAPABILITY_RDPQ_ARRAY_CAPABLE. 132 * Added MPI2_IOCFACTS_CAPABILITY_RDPQ_ARRAY_CAPABLE.
133 * Added MPI2_FW_DOWNLOAD_ITYPE_PUBLIC_KEY. 133 * Added MPI2_FW_DOWNLOAD_ITYPE_PUBLIC_KEY.
134 * Added Encrypted Hash Extended Image. 134 * Added Encrypted Hash Extended Image.
135 * 12-05-13 02.00.24 Added MPI25_HASH_IMAGE_TYPE_BIOS.
135 * -------------------------------------------------------------------------- 136 * --------------------------------------------------------------------------
136 */ 137 */
137 138
@@ -1598,6 +1599,7 @@ Mpi25EncryptedHashEntry_t, *pMpi25EncryptedHashEntry_t;
1598/* values for HashImageType */ 1599/* values for HashImageType */
1599#define MPI25_HASH_IMAGE_TYPE_UNUSED (0x00) 1600#define MPI25_HASH_IMAGE_TYPE_UNUSED (0x00)
1600#define MPI25_HASH_IMAGE_TYPE_FIRMWARE (0x01) 1601#define MPI25_HASH_IMAGE_TYPE_FIRMWARE (0x01)
1602#define MPI25_HASH_IMAGE_TYPE_BIOS (0x02)
1601 1603
1602/* values for HashAlgorithm */ 1604/* values for HashAlgorithm */
1603#define MPI25_HASH_ALGORITHM_UNUSED (0x00) 1605#define MPI25_HASH_ALGORITHM_UNUSED (0x00)
diff --git a/drivers/scsi/mpt3sas/mpi/mpi2_tool.h b/drivers/scsi/mpt3sas/mpi/mpi2_tool.h
index 904910d8a737..1629e5bce7e1 100644
--- a/drivers/scsi/mpt3sas/mpi/mpi2_tool.h
+++ b/drivers/scsi/mpt3sas/mpi/mpi2_tool.h
@@ -6,7 +6,7 @@
6 * Title: MPI diagnostic tool structures and definitions 6 * Title: MPI diagnostic tool structures and definitions
7 * Creation Date: March 26, 2007 7 * Creation Date: March 26, 2007
8 * 8 *
9 * mpi2_tool.h Version: 02.00.11 9 * mpi2_tool.h Version: 02.00.12
10 * 10 *
11 * Version History 11 * Version History
12 * --------------- 12 * ---------------
@@ -33,6 +33,7 @@
33 * 07-26-12 02.00.10 Modified MPI2_TOOLBOX_DIAGNOSTIC_CLI_REQUEST so that 33 * 07-26-12 02.00.10 Modified MPI2_TOOLBOX_DIAGNOSTIC_CLI_REQUEST so that
34 * it uses MPI Chain SGE as well as MPI Simple SGE. 34 * it uses MPI Chain SGE as well as MPI Simple SGE.
35 * 08-19-13 02.00.11 Added MPI2_TOOLBOX_TEXT_DISPLAY_TOOL and related info. 35 * 08-19-13 02.00.11 Added MPI2_TOOLBOX_TEXT_DISPLAY_TOOL and related info.
36 * 01-08-14 02.00.12 Added MPI2_TOOLBOX_CLEAN_BIT26_PRODUCT_SPECIFIC.
36 * -------------------------------------------------------------------------- 37 * --------------------------------------------------------------------------
37 */ 38 */
38 39
@@ -100,6 +101,7 @@ typedef struct _MPI2_TOOLBOX_CLEAN_REQUEST {
100#define MPI2_TOOLBOX_CLEAN_OTHER_PERSIST_PAGES (0x20000000) 101#define MPI2_TOOLBOX_CLEAN_OTHER_PERSIST_PAGES (0x20000000)
101#define MPI2_TOOLBOX_CLEAN_FW_CURRENT (0x10000000) 102#define MPI2_TOOLBOX_CLEAN_FW_CURRENT (0x10000000)
102#define MPI2_TOOLBOX_CLEAN_FW_BACKUP (0x08000000) 103#define MPI2_TOOLBOX_CLEAN_FW_BACKUP (0x08000000)
104#define MPI2_TOOLBOX_CLEAN_BIT26_PRODUCT_SPECIFIC (0x04000000)
103#define MPI2_TOOLBOX_CLEAN_MEGARAID (0x02000000) 105#define MPI2_TOOLBOX_CLEAN_MEGARAID (0x02000000)
104#define MPI2_TOOLBOX_CLEAN_INITIALIZATION (0x01000000) 106#define MPI2_TOOLBOX_CLEAN_INITIALIZATION (0x01000000)
105#define MPI2_TOOLBOX_CLEAN_FLASH (0x00000004) 107#define MPI2_TOOLBOX_CLEAN_FLASH (0x00000004)
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index 43f87e904b98..d4f1dcdb8361 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -83,10 +83,10 @@ static int msix_disable = -1;
83module_param(msix_disable, int, 0); 83module_param(msix_disable, int, 0);
84MODULE_PARM_DESC(msix_disable, " disable msix routed interrupts (default=0)"); 84MODULE_PARM_DESC(msix_disable, " disable msix routed interrupts (default=0)");
85 85
86static int max_msix_vectors = 8; 86static int max_msix_vectors = -1;
87module_param(max_msix_vectors, int, 0); 87module_param(max_msix_vectors, int, 0);
88MODULE_PARM_DESC(max_msix_vectors, 88MODULE_PARM_DESC(max_msix_vectors,
89 " max msix vectors - (default=8)"); 89 " max msix vectors");
90 90
91static int mpt3sas_fwfault_debug; 91static int mpt3sas_fwfault_debug;
92MODULE_PARM_DESC(mpt3sas_fwfault_debug, 92MODULE_PARM_DESC(mpt3sas_fwfault_debug,
@@ -1009,8 +1009,30 @@ _base_interrupt(int irq, void *bus_id)
1009 } 1009 }
1010 1010
1011 wmb(); 1011 wmb();
1012 writel(reply_q->reply_post_host_index | (msix_index << 1012
1013 MPI2_RPHI_MSIX_INDEX_SHIFT), &ioc->chip->ReplyPostHostIndex); 1013 /* Update Reply Post Host Index.
1014 * For those HBA's which support combined reply queue feature
1015 * 1. Get the correct Supplemental Reply Post Host Index Register.
1016 * i.e. (msix_index / 8)th entry from Supplemental Reply Post Host
1017 * Index Register address bank i.e replyPostRegisterIndex[],
1018 * 2. Then update this register with new reply host index value
1019 * in ReplyPostIndex field and the MSIxIndex field with
1020 * msix_index value reduced to a value between 0 and 7,
1021 * using a modulo 8 operation. Since each Supplemental Reply Post
1022 * Host Index Register supports 8 MSI-X vectors.
1023 *
1024 * For other HBA's just update the Reply Post Host Index register with
1025 * new reply host index value in ReplyPostIndex Field and msix_index
1026 * value in MSIxIndex field.
1027 */
1028 if (ioc->msix96_vector)
1029 writel(reply_q->reply_post_host_index | ((msix_index & 7) <<
1030 MPI2_RPHI_MSIX_INDEX_SHIFT),
1031 ioc->replyPostRegisterIndex[msix_index/8]);
1032 else
1033 writel(reply_q->reply_post_host_index | (msix_index <<
1034 MPI2_RPHI_MSIX_INDEX_SHIFT),
1035 &ioc->chip->ReplyPostHostIndex);
1014 atomic_dec(&reply_q->busy); 1036 atomic_dec(&reply_q->busy);
1015 return IRQ_HANDLED; 1037 return IRQ_HANDLED;
1016} 1038}
@@ -1338,7 +1360,7 @@ _base_build_sg_scmd_ieee(struct MPT3SAS_ADAPTER *ioc,
1338 1360
1339 sg_scmd = scsi_sglist(scmd); 1361 sg_scmd = scsi_sglist(scmd);
1340 sges_left = scsi_dma_map(scmd); 1362 sges_left = scsi_dma_map(scmd);
1341 if (!sges_left) { 1363 if (sges_left < 0) {
1342 sdev_printk(KERN_ERR, scmd->device, 1364 sdev_printk(KERN_ERR, scmd->device,
1343 "pci_map_sg failed: request for %d bytes!\n", 1365 "pci_map_sg failed: request for %d bytes!\n",
1344 scsi_bufflen(scmd)); 1366 scsi_bufflen(scmd));
@@ -1407,7 +1429,7 @@ _base_build_sg_scmd_ieee(struct MPT3SAS_ADAPTER *ioc,
1407 fill_in_last_segment: 1429 fill_in_last_segment:
1408 1430
1409 /* fill the last segment */ 1431 /* fill the last segment */
1410 while (sges_left) { 1432 while (sges_left > 0) {
1411 if (sges_left == 1) 1433 if (sges_left == 1)
1412 _base_add_sg_single_ieee(sg_local, 1434 _base_add_sg_single_ieee(sg_local,
1413 simple_sgl_flags_last, 0, sg_dma_len(sg_scmd), 1435 simple_sgl_flags_last, 0, sg_dma_len(sg_scmd),
@@ -1560,8 +1582,6 @@ _base_check_enable_msix(struct MPT3SAS_ADAPTER *ioc)
1560 1582
1561 pci_read_config_word(ioc->pdev, base + 2, &message_control); 1583 pci_read_config_word(ioc->pdev, base + 2, &message_control);
1562 ioc->msix_vector_count = (message_control & 0x3FF) + 1; 1584 ioc->msix_vector_count = (message_control & 0x3FF) + 1;
1563 if (ioc->msix_vector_count > 8)
1564 ioc->msix_vector_count = 8;
1565 dinitprintk(ioc, pr_info(MPT3SAS_FMT 1585 dinitprintk(ioc, pr_info(MPT3SAS_FMT
1566 "msix is supported, vector_count(%d)\n", 1586 "msix is supported, vector_count(%d)\n",
1567 ioc->name, ioc->msix_vector_count)); 1587 ioc->name, ioc->msix_vector_count));
@@ -1793,6 +1813,36 @@ _base_enable_msix(struct MPT3SAS_ADAPTER *ioc)
1793} 1813}
1794 1814
1795/** 1815/**
1816 * mpt3sas_base_unmap_resources - free controller resources
1817 * @ioc: per adapter object
1818 */
1819void
1820mpt3sas_base_unmap_resources(struct MPT3SAS_ADAPTER *ioc)
1821{
1822 struct pci_dev *pdev = ioc->pdev;
1823
1824 dexitprintk(ioc, printk(MPT3SAS_FMT "%s\n",
1825 ioc->name, __func__));
1826
1827 _base_free_irq(ioc);
1828 _base_disable_msix(ioc);
1829
1830 if (ioc->msix96_vector)
1831 kfree(ioc->replyPostRegisterIndex);
1832
1833 if (ioc->chip_phys) {
1834 iounmap(ioc->chip);
1835 ioc->chip_phys = 0;
1836 }
1837
1838 if (pci_is_enabled(pdev)) {
1839 pci_release_selected_regions(ioc->pdev, ioc->bars);
1840 pci_disable_pcie_error_reporting(pdev);
1841 pci_disable_device(pdev);
1842 }
1843}
1844
1845/**
1796 * mpt3sas_base_map_resources - map in controller resources (io/irq/memap) 1846 * mpt3sas_base_map_resources - map in controller resources (io/irq/memap)
1797 * @ioc: per adapter object 1847 * @ioc: per adapter object
1798 * 1848 *
@@ -1882,6 +1932,36 @@ mpt3sas_base_map_resources(struct MPT3SAS_ADAPTER *ioc)
1882 if (r) 1932 if (r)
1883 goto out_fail; 1933 goto out_fail;
1884 1934
1935 /* Use the Combined reply queue feature only for SAS3 C0 & higher
1936 * revision HBAs and also only when reply queue count is greater than 8
1937 */
1938 if (ioc->msix96_vector && ioc->reply_queue_count > 8) {
1939 /* Determine the Supplemental Reply Post Host Index Registers
1940 * Addresse. Supplemental Reply Post Host Index Registers
1941 * starts at offset MPI25_SUP_REPLY_POST_HOST_INDEX_OFFSET and
1942 * each register is at offset bytes of
1943 * MPT3_SUP_REPLY_POST_HOST_INDEX_REG_OFFSET from previous one.
1944 */
1945 ioc->replyPostRegisterIndex = kcalloc(
1946 MPT3_SUP_REPLY_POST_HOST_INDEX_REG_COUNT,
1947 sizeof(resource_size_t *), GFP_KERNEL);
1948 if (!ioc->replyPostRegisterIndex) {
1949 dfailprintk(ioc, printk(MPT3SAS_FMT
1950 "allocation for reply Post Register Index failed!!!\n",
1951 ioc->name));
1952 r = -ENOMEM;
1953 goto out_fail;
1954 }
1955
1956 for (i = 0; i < MPT3_SUP_REPLY_POST_HOST_INDEX_REG_COUNT; i++) {
1957 ioc->replyPostRegisterIndex[i] = (resource_size_t *)
1958 ((u8 *)&ioc->chip->Doorbell +
1959 MPI25_SUP_REPLY_POST_HOST_INDEX_OFFSET +
1960 (i * MPT3_SUP_REPLY_POST_HOST_INDEX_REG_OFFSET));
1961 }
1962 } else
1963 ioc->msix96_vector = 0;
1964
1885 list_for_each_entry(reply_q, &ioc->reply_queue_list, list) 1965 list_for_each_entry(reply_q, &ioc->reply_queue_list, list)
1886 pr_info(MPT3SAS_FMT "%s: IRQ %d\n", 1966 pr_info(MPT3SAS_FMT "%s: IRQ %d\n",
1887 reply_q->name, ((ioc->msix_enable) ? "PCI-MSI-X enabled" : 1967 reply_q->name, ((ioc->msix_enable) ? "PCI-MSI-X enabled" :
@@ -1897,12 +1977,7 @@ mpt3sas_base_map_resources(struct MPT3SAS_ADAPTER *ioc)
1897 return 0; 1977 return 0;
1898 1978
1899 out_fail: 1979 out_fail:
1900 if (ioc->chip_phys) 1980 mpt3sas_base_unmap_resources(ioc);
1901 iounmap(ioc->chip);
1902 ioc->chip_phys = 0;
1903 pci_release_selected_regions(ioc->pdev, ioc->bars);
1904 pci_disable_pcie_error_reporting(pdev);
1905 pci_disable_device(pdev);
1906 return r; 1981 return r;
1907} 1982}
1908 1983
@@ -2292,6 +2367,99 @@ _base_display_intel_branding(struct MPT3SAS_ADAPTER *ioc)
2292 2367
2293 2368
2294/** 2369/**
2370 * _base_display_dell_branding - Display branding string
2371 * @ioc: per adapter object
2372 *
2373 * Return nothing.
2374 */
2375static void
2376_base_display_dell_branding(struct MPT3SAS_ADAPTER *ioc)
2377{
2378 if (ioc->pdev->subsystem_vendor != PCI_VENDOR_ID_DELL)
2379 return;
2380
2381 switch (ioc->pdev->device) {
2382 case MPI25_MFGPAGE_DEVID_SAS3008:
2383 switch (ioc->pdev->subsystem_device) {
2384 case MPT3SAS_DELL_12G_HBA_SSDID:
2385 pr_info(MPT3SAS_FMT "%s\n", ioc->name,
2386 MPT3SAS_DELL_12G_HBA_BRANDING);
2387 break;
2388 default:
2389 pr_info(MPT3SAS_FMT
2390 "Dell 12Gbps HBA: Subsystem ID: 0x%X\n", ioc->name,
2391 ioc->pdev->subsystem_device);
2392 break;
2393 }
2394 break;
2395 default:
2396 pr_info(MPT3SAS_FMT
2397 "Dell 12Gbps HBA: Subsystem ID: 0x%X\n", ioc->name,
2398 ioc->pdev->subsystem_device);
2399 break;
2400 }
2401}
2402
2403/**
2404 * _base_display_cisco_branding - Display branding string
2405 * @ioc: per adapter object
2406 *
2407 * Return nothing.
2408 */
2409static void
2410_base_display_cisco_branding(struct MPT3SAS_ADAPTER *ioc)
2411{
2412 if (ioc->pdev->subsystem_vendor != PCI_VENDOR_ID_CISCO)
2413 return;
2414
2415 switch (ioc->pdev->device) {
2416 case MPI25_MFGPAGE_DEVID_SAS3008:
2417 switch (ioc->pdev->subsystem_device) {
2418 case MPT3SAS_CISCO_12G_8E_HBA_SSDID:
2419 pr_info(MPT3SAS_FMT "%s\n", ioc->name,
2420 MPT3SAS_CISCO_12G_8E_HBA_BRANDING);
2421 break;
2422 case MPT3SAS_CISCO_12G_8I_HBA_SSDID:
2423 pr_info(MPT3SAS_FMT "%s\n", ioc->name,
2424 MPT3SAS_CISCO_12G_8I_HBA_BRANDING);
2425 break;
2426 case MPT3SAS_CISCO_12G_AVILA_HBA_SSDID:
2427 pr_info(MPT3SAS_FMT "%s\n", ioc->name,
2428 MPT3SAS_CISCO_12G_AVILA_HBA_BRANDING);
2429 break;
2430 default:
2431 pr_info(MPT3SAS_FMT
2432 "Cisco 12Gbps SAS HBA: Subsystem ID: 0x%X\n",
2433 ioc->name, ioc->pdev->subsystem_device);
2434 break;
2435 }
2436 break;
2437 case MPI25_MFGPAGE_DEVID_SAS3108_1:
2438 switch (ioc->pdev->subsystem_device) {
2439 case MPT3SAS_CISCO_12G_AVILA_HBA_SSDID:
2440 pr_info(MPT3SAS_FMT "%s\n", ioc->name,
2441 MPT3SAS_CISCO_12G_AVILA_HBA_BRANDING);
2442 break;
2443 case MPT3SAS_CISCO_12G_COLUSA_MEZZANINE_HBA_SSDID:
2444 pr_info(MPT3SAS_FMT "%s\n", ioc->name,
2445 MPT3SAS_CISCO_12G_COLUSA_MEZZANINE_HBA_BRANDING);
2446 break;
2447 default:
2448 pr_info(MPT3SAS_FMT
2449 "Cisco 12Gbps SAS HBA: Subsystem ID: 0x%X\n",
2450 ioc->name, ioc->pdev->subsystem_device);
2451 break;
2452 }
2453 break;
2454 default:
2455 pr_info(MPT3SAS_FMT
2456 "Cisco 12Gbps SAS HBA: Subsystem ID: 0x%X\n",
2457 ioc->name, ioc->pdev->subsystem_device);
2458 break;
2459 }
2460}
2461
2462/**
2295 * _base_display_ioc_capabilities - Disply IOC's capabilities. 2463 * _base_display_ioc_capabilities - Disply IOC's capabilities.
2296 * @ioc: per adapter object 2464 * @ioc: per adapter object
2297 * 2465 *
@@ -2321,6 +2489,8 @@ _base_display_ioc_capabilities(struct MPT3SAS_ADAPTER *ioc)
2321 bios_version & 0x000000FF); 2489 bios_version & 0x000000FF);
2322 2490
2323 _base_display_intel_branding(ioc); 2491 _base_display_intel_branding(ioc);
2492 _base_display_dell_branding(ioc);
2493 _base_display_cisco_branding(ioc);
2324 2494
2325 pr_info(MPT3SAS_FMT "Protocol=(", ioc->name); 2495 pr_info(MPT3SAS_FMT "Protocol=(", ioc->name);
2326 2496
@@ -3139,6 +3309,9 @@ _base_wait_on_iocstate(struct MPT3SAS_ADAPTER *ioc, u32 ioc_state, int timeout,
3139 * Notes: MPI2_HIS_IOC2SYS_DB_STATUS - set to one when IOC writes to doorbell. 3309 * Notes: MPI2_HIS_IOC2SYS_DB_STATUS - set to one when IOC writes to doorbell.
3140 */ 3310 */
3141static int 3311static int
3312_base_diag_reset(struct MPT3SAS_ADAPTER *ioc, int sleep_flag);
3313
3314static int
3142_base_wait_for_doorbell_int(struct MPT3SAS_ADAPTER *ioc, int timeout, 3315_base_wait_for_doorbell_int(struct MPT3SAS_ADAPTER *ioc, int timeout,
3143 int sleep_flag) 3316 int sleep_flag)
3144{ 3317{
@@ -3681,6 +3854,64 @@ _base_get_port_facts(struct MPT3SAS_ADAPTER *ioc, int port, int sleep_flag)
3681} 3854}
3682 3855
3683/** 3856/**
3857 * _base_wait_for_iocstate - Wait until the card is in READY or OPERATIONAL
3858 * @ioc: per adapter object
3859 * @timeout:
3860 * @sleep_flag: CAN_SLEEP or NO_SLEEP
3861 *
3862 * Returns 0 for success, non-zero for failure.
3863 */
3864static int
3865_base_wait_for_iocstate(struct MPT3SAS_ADAPTER *ioc, int timeout,
3866 int sleep_flag)
3867{
3868 u32 ioc_state;
3869 int rc;
3870
3871 dinitprintk(ioc, printk(MPT3SAS_FMT "%s\n", ioc->name,
3872 __func__));
3873
3874 if (ioc->pci_error_recovery) {
3875 dfailprintk(ioc, printk(MPT3SAS_FMT
3876 "%s: host in pci error recovery\n", ioc->name, __func__));
3877 return -EFAULT;
3878 }
3879
3880 ioc_state = mpt3sas_base_get_iocstate(ioc, 0);
3881 dhsprintk(ioc, printk(MPT3SAS_FMT "%s: ioc_state(0x%08x)\n",
3882 ioc->name, __func__, ioc_state));
3883
3884 if (((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_READY) ||
3885 (ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_OPERATIONAL)
3886 return 0;
3887
3888 if (ioc_state & MPI2_DOORBELL_USED) {
3889 dhsprintk(ioc, printk(MPT3SAS_FMT
3890 "unexpected doorbell active!\n", ioc->name));
3891 goto issue_diag_reset;
3892 }
3893
3894 if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
3895 mpt3sas_base_fault_info(ioc, ioc_state &
3896 MPI2_DOORBELL_DATA_MASK);
3897 goto issue_diag_reset;
3898 }
3899
3900 ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY,
3901 timeout, sleep_flag);
3902 if (ioc_state) {
3903 dfailprintk(ioc, printk(MPT3SAS_FMT
3904 "%s: failed going to ready state (ioc_state=0x%x)\n",
3905 ioc->name, __func__, ioc_state));
3906 return -EFAULT;
3907 }
3908
3909 issue_diag_reset:
3910 rc = _base_diag_reset(ioc, sleep_flag);
3911 return rc;
3912}
3913
3914/**
3684 * _base_get_ioc_facts - obtain ioc facts reply and save in ioc 3915 * _base_get_ioc_facts - obtain ioc facts reply and save in ioc
3685 * @ioc: per adapter object 3916 * @ioc: per adapter object
3686 * @sleep_flag: CAN_SLEEP or NO_SLEEP 3917 * @sleep_flag: CAN_SLEEP or NO_SLEEP
@@ -3698,6 +3929,13 @@ _base_get_ioc_facts(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
3698 dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name, 3929 dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
3699 __func__)); 3930 __func__));
3700 3931
3932 r = _base_wait_for_iocstate(ioc, 10, sleep_flag);
3933 if (r) {
3934 dfailprintk(ioc, printk(MPT3SAS_FMT
3935 "%s: failed getting to correct state\n",
3936 ioc->name, __func__));
3937 return r;
3938 }
3701 mpi_reply_sz = sizeof(Mpi2IOCFactsReply_t); 3939 mpi_reply_sz = sizeof(Mpi2IOCFactsReply_t);
3702 mpi_request_sz = sizeof(Mpi2IOCFactsRequest_t); 3940 mpi_request_sz = sizeof(Mpi2IOCFactsRequest_t);
3703 memset(&mpi_request, 0, mpi_request_sz); 3941 memset(&mpi_request, 0, mpi_request_sz);
@@ -3783,7 +4021,7 @@ _base_send_ioc_init(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
3783 mpi_request.WhoInit = MPI2_WHOINIT_HOST_DRIVER; 4021 mpi_request.WhoInit = MPI2_WHOINIT_HOST_DRIVER;
3784 mpi_request.VF_ID = 0; /* TODO */ 4022 mpi_request.VF_ID = 0; /* TODO */
3785 mpi_request.VP_ID = 0; 4023 mpi_request.VP_ID = 0;
3786 mpi_request.MsgVersion = cpu_to_le16(MPI2_VERSION); 4024 mpi_request.MsgVersion = cpu_to_le16(MPI25_VERSION);
3787 mpi_request.HeaderVersion = cpu_to_le16(MPI2_HEADER_VERSION); 4025 mpi_request.HeaderVersion = cpu_to_le16(MPI2_HEADER_VERSION);
3788 4026
3789 if (_base_is_controller_msix_enabled(ioc)) 4027 if (_base_is_controller_msix_enabled(ioc))
@@ -4524,8 +4762,15 @@ _base_make_ioc_operational(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
4524 4762
4525 /* initialize reply post host index */ 4763 /* initialize reply post host index */
4526 list_for_each_entry(reply_q, &ioc->reply_queue_list, list) { 4764 list_for_each_entry(reply_q, &ioc->reply_queue_list, list) {
4527 writel(reply_q->msix_index << MPI2_RPHI_MSIX_INDEX_SHIFT, 4765 if (ioc->msix96_vector)
4528 &ioc->chip->ReplyPostHostIndex); 4766 writel((reply_q->msix_index & 7)<<
4767 MPI2_RPHI_MSIX_INDEX_SHIFT,
4768 ioc->replyPostRegisterIndex[reply_q->msix_index/8]);
4769 else
4770 writel(reply_q->msix_index <<
4771 MPI2_RPHI_MSIX_INDEX_SHIFT,
4772 &ioc->chip->ReplyPostHostIndex);
4773
4529 if (!_base_is_controller_msix_enabled(ioc)) 4774 if (!_base_is_controller_msix_enabled(ioc))
4530 goto skip_init_reply_post_host_index; 4775 goto skip_init_reply_post_host_index;
4531 } 4776 }
@@ -4564,8 +4809,6 @@ _base_make_ioc_operational(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
4564void 4809void
4565mpt3sas_base_free_resources(struct MPT3SAS_ADAPTER *ioc) 4810mpt3sas_base_free_resources(struct MPT3SAS_ADAPTER *ioc)
4566{ 4811{
4567 struct pci_dev *pdev = ioc->pdev;
4568
4569 dexitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name, 4812 dexitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
4570 __func__)); 4813 __func__));
4571 4814
@@ -4576,18 +4819,7 @@ mpt3sas_base_free_resources(struct MPT3SAS_ADAPTER *ioc)
4576 ioc->shost_recovery = 0; 4819 ioc->shost_recovery = 0;
4577 } 4820 }
4578 4821
4579 _base_free_irq(ioc); 4822 mpt3sas_base_unmap_resources(ioc);
4580 _base_disable_msix(ioc);
4581
4582 if (ioc->chip_phys && ioc->chip)
4583 iounmap(ioc->chip);
4584 ioc->chip_phys = 0;
4585
4586 if (pci_is_enabled(pdev)) {
4587 pci_release_selected_regions(ioc->pdev, ioc->bars);
4588 pci_disable_pcie_error_reporting(pdev);
4589 pci_disable_device(pdev);
4590 }
4591 return; 4823 return;
4592} 4824}
4593 4825
@@ -4602,6 +4834,7 @@ mpt3sas_base_attach(struct MPT3SAS_ADAPTER *ioc)
4602{ 4834{
4603 int r, i; 4835 int r, i;
4604 int cpu_id, last_cpu_id = 0; 4836 int cpu_id, last_cpu_id = 0;
4837 u8 revision;
4605 4838
4606 dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name, 4839 dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
4607 __func__)); 4840 __func__));
@@ -4621,6 +4854,20 @@ mpt3sas_base_attach(struct MPT3SAS_ADAPTER *ioc)
4621 goto out_free_resources; 4854 goto out_free_resources;
4622 } 4855 }
4623 4856
4857 /* Check whether the controller revision is C0 or above.
4858 * only C0 and above revision controllers support 96 MSI-X vectors.
4859 */
4860 revision = ioc->pdev->revision;
4861
4862 if ((ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3004 ||
4863 ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3008 ||
4864 ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3108_1 ||
4865 ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3108_2 ||
4866 ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3108_5 ||
4867 ioc->pdev->device == MPI25_MFGPAGE_DEVID_SAS3108_6) &&
4868 (revision >= 0x02))
4869 ioc->msix96_vector = 1;
4870
4624 ioc->rdpq_array_enable_assigned = 0; 4871 ioc->rdpq_array_enable_assigned = 0;
4625 ioc->dma_mask = 0; 4872 ioc->dma_mask = 0;
4626 r = mpt3sas_base_map_resources(ioc); 4873 r = mpt3sas_base_map_resources(ioc);
@@ -4643,7 +4890,6 @@ mpt3sas_base_attach(struct MPT3SAS_ADAPTER *ioc)
4643 ioc->build_sg_scmd = &_base_build_sg_scmd_ieee; 4890 ioc->build_sg_scmd = &_base_build_sg_scmd_ieee;
4644 ioc->build_sg = &_base_build_sg_ieee; 4891 ioc->build_sg = &_base_build_sg_ieee;
4645 ioc->build_zero_len_sge = &_base_build_zero_len_sge_ieee; 4892 ioc->build_zero_len_sge = &_base_build_zero_len_sge_ieee;
4646 ioc->mpi25 = 1;
4647 ioc->sge_size_ieee = sizeof(Mpi2IeeeSgeSimple64_t); 4893 ioc->sge_size_ieee = sizeof(Mpi2IeeeSgeSimple64_t);
4648 4894
4649 /* 4895 /*
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h
index afa881682bef..f0e462b0880d 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.h
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.h
@@ -71,8 +71,8 @@
71#define MPT3SAS_DRIVER_NAME "mpt3sas" 71#define MPT3SAS_DRIVER_NAME "mpt3sas"
72#define MPT3SAS_AUTHOR "Avago Technologies <MPT-FusionLinux.pdl@avagotech.com>" 72#define MPT3SAS_AUTHOR "Avago Technologies <MPT-FusionLinux.pdl@avagotech.com>"
73#define MPT3SAS_DESCRIPTION "LSI MPT Fusion SAS 3.0 Device Driver" 73#define MPT3SAS_DESCRIPTION "LSI MPT Fusion SAS 3.0 Device Driver"
74#define MPT3SAS_DRIVER_VERSION "04.100.00.00" 74#define MPT3SAS_DRIVER_VERSION "09.100.00.00"
75#define MPT3SAS_MAJOR_VERSION 4 75#define MPT3SAS_MAJOR_VERSION 9
76#define MPT3SAS_MINOR_VERSION 100 76#define MPT3SAS_MINOR_VERSION 100
77#define MPT3SAS_BUILD_VERSION 0 77#define MPT3SAS_BUILD_VERSION 0
78#define MPT3SAS_RELEASE_VERSION 00 78#define MPT3SAS_RELEASE_VERSION 00
@@ -152,12 +152,49 @@
152#define MPT3SAS_INTEL_RS3UC080_SSDID 0x3524 152#define MPT3SAS_INTEL_RS3UC080_SSDID 0x3524
153 153
154/* 154/*
155 * Dell HBA branding
156 */
157#define MPT3SAS_DELL_12G_HBA_BRANDING \
158 "Dell 12Gbps HBA"
159
160/*
161 * Dell HBA SSDIDs
162 */
163#define MPT3SAS_DELL_12G_HBA_SSDID 0x1F46
164
165/*
166 * Cisco HBA branding
167 */
168#define MPT3SAS_CISCO_12G_8E_HBA_BRANDING \
169 "Cisco 9300-8E 12G SAS HBA"
170#define MPT3SAS_CISCO_12G_8I_HBA_BRANDING \
171 "Cisco 9300-8i 12G SAS HBA"
172#define MPT3SAS_CISCO_12G_AVILA_HBA_BRANDING \
173 "Cisco 12G Modular SAS Pass through Controller"
174#define MPT3SAS_CISCO_12G_COLUSA_MEZZANINE_HBA_BRANDING \
175 "UCS C3X60 12G SAS Pass through Controller"
176/*
177 * Cisco HBA SSSDIDs
178 */
179#define MPT3SAS_CISCO_12G_8E_HBA_SSDID 0x14C
180#define MPT3SAS_CISCO_12G_8I_HBA_SSDID 0x154
181#define MPT3SAS_CISCO_12G_AVILA_HBA_SSDID 0x155
182#define MPT3SAS_CISCO_12G_COLUSA_MEZZANINE_HBA_SSDID 0x156
183
184/*
155 * status bits for ioc->diag_buffer_status 185 * status bits for ioc->diag_buffer_status
156 */ 186 */
157#define MPT3_DIAG_BUFFER_IS_REGISTERED (0x01) 187#define MPT3_DIAG_BUFFER_IS_REGISTERED (0x01)
158#define MPT3_DIAG_BUFFER_IS_RELEASED (0x02) 188#define MPT3_DIAG_BUFFER_IS_RELEASED (0x02)
159#define MPT3_DIAG_BUFFER_IS_DIAG_RESET (0x04) 189#define MPT3_DIAG_BUFFER_IS_DIAG_RESET (0x04)
160 190
191/*
192 * Combined Reply Queue constants,
193 * There are twelve Supplemental Reply Post Host Index Registers
194 * and each register is at offset 0x10 bytes from the previous one.
195 */
196#define MPT3_SUP_REPLY_POST_HOST_INDEX_REG_COUNT 12
197#define MPT3_SUP_REPLY_POST_HOST_INDEX_REG_OFFSET (0x10)
161 198
162/* OEM Identifiers */ 199/* OEM Identifiers */
163#define MFG10_OEM_ID_INVALID (0x00000000) 200#define MFG10_OEM_ID_INVALID (0x00000000)
@@ -173,6 +210,8 @@
173#define MFG10_GF0_SSD_DATA_SCRUB_DISABLE (0x00000008) 210#define MFG10_GF0_SSD_DATA_SCRUB_DISABLE (0x00000008)
174#define MFG10_GF0_SINGLE_DRIVE_R0 (0x00000010) 211#define MFG10_GF0_SINGLE_DRIVE_R0 (0x00000010)
175 212
213#define VIRTUAL_IO_FAILED_RETRY (0x32010081)
214
176/* OEM Specific Flags will come from OEM specific header files */ 215/* OEM Specific Flags will come from OEM specific header files */
177struct Mpi2ManufacturingPage10_t { 216struct Mpi2ManufacturingPage10_t {
178 MPI2_CONFIG_PAGE_HEADER Header; /* 00h */ 217 MPI2_CONFIG_PAGE_HEADER Header; /* 00h */
@@ -294,7 +333,8 @@ struct _internal_cmd {
294 * @responding: used in _scsih_sas_device_mark_responding 333 * @responding: used in _scsih_sas_device_mark_responding
295 * @fast_path: fast path feature enable bit 334 * @fast_path: fast path feature enable bit
296 * @pfa_led_on: flag for PFA LED status 335 * @pfa_led_on: flag for PFA LED status
297 * 336 * @pend_sas_rphy_add: flag to check if device is in sas_rphy_add()
337 * addition routine.
298 */ 338 */
299struct _sas_device { 339struct _sas_device {
300 struct list_head list; 340 struct list_head list;
@@ -315,6 +355,9 @@ struct _sas_device {
315 u8 responding; 355 u8 responding;
316 u8 fast_path; 356 u8 fast_path;
317 u8 pfa_led_on; 357 u8 pfa_led_on;
358 u8 pend_sas_rphy_add;
359 u8 enclosure_level;
360 u8 connector_name[4];
318}; 361};
319 362
320/** 363/**
@@ -728,7 +771,8 @@ typedef void (*MPT3SAS_FLUSH_RUNNING_CMDS)(struct MPT3SAS_ADAPTER *ioc);
728 * is assigned only ones 771 * is assigned only ones
729 * @reply_queue_count: number of reply queue's 772 * @reply_queue_count: number of reply queue's
730 * @reply_queue_list: link list contaning the reply queue info 773 * @reply_queue_list: link list contaning the reply queue info
731 * @reply_post_host_index: head index in the pool where FW completes IO 774 * @msix96_vector: 96 MSI-X vector support
775 * @replyPostRegisterIndex: index of next position in Reply Desc Post Queue
732 * @delayed_tr_list: target reset link list 776 * @delayed_tr_list: target reset link list
733 * @delayed_tr_volume_list: volume target reset link list 777 * @delayed_tr_volume_list: volume target reset link list
734 * @@temp_sensors_count: flag to carry the number of temperature sensors 778 * @@temp_sensors_count: flag to carry the number of temperature sensors
@@ -814,7 +858,6 @@ struct MPT3SAS_ADAPTER {
814 MPT_BUILD_SG_SCMD build_sg_scmd; 858 MPT_BUILD_SG_SCMD build_sg_scmd;
815 MPT_BUILD_SG build_sg; 859 MPT_BUILD_SG build_sg;
816 MPT_BUILD_ZERO_LEN_SGE build_zero_len_sge; 860 MPT_BUILD_ZERO_LEN_SGE build_zero_len_sge;
817 u8 mpi25;
818 u16 sge_size_ieee; 861 u16 sge_size_ieee;
819 862
820 /* function ptr for MPI sg elements only */ 863 /* function ptr for MPI sg elements only */
@@ -937,6 +980,10 @@ struct MPT3SAS_ADAPTER {
937 u8 reply_queue_count; 980 u8 reply_queue_count;
938 struct list_head reply_queue_list; 981 struct list_head reply_queue_list;
939 982
983 u8 msix96_vector;
984 /* reply post register index */
985 resource_size_t **replyPostRegisterIndex;
986
940 struct list_head delayed_tr_list; 987 struct list_head delayed_tr_list;
941 struct list_head delayed_tr_volume_list; 988 struct list_head delayed_tr_volume_list;
942 u8 temp_sensors_count; 989 u8 temp_sensors_count;
diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index 5a97e3286719..8ccef38523fa 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -585,6 +585,22 @@ _scsih_sas_device_remove(struct MPT3SAS_ADAPTER *ioc,
585 585
586 if (!sas_device) 586 if (!sas_device)
587 return; 587 return;
588 pr_info(MPT3SAS_FMT
589 "removing handle(0x%04x), sas_addr(0x%016llx)\n",
590 ioc->name, sas_device->handle,
591 (unsigned long long) sas_device->sas_address);
592
593 if (sas_device->enclosure_handle != 0)
594 pr_info(MPT3SAS_FMT
595 "removing enclosure logical id(0x%016llx), slot(%d)\n",
596 ioc->name, (unsigned long long)
597 sas_device->enclosure_logical_id, sas_device->slot);
598
599 if (sas_device->connector_name[0] != '\0')
600 pr_info(MPT3SAS_FMT
601 "removing enclosure level(0x%04x), connector name( %s)\n",
602 ioc->name, sas_device->enclosure_level,
603 sas_device->connector_name);
588 604
589 spin_lock_irqsave(&ioc->sas_device_lock, flags); 605 spin_lock_irqsave(&ioc->sas_device_lock, flags);
590 list_del(&sas_device->list); 606 list_del(&sas_device->list);
@@ -663,6 +679,18 @@ _scsih_sas_device_add(struct MPT3SAS_ADAPTER *ioc,
663 ioc->name, __func__, sas_device->handle, 679 ioc->name, __func__, sas_device->handle,
664 (unsigned long long)sas_device->sas_address)); 680 (unsigned long long)sas_device->sas_address));
665 681
682 if (sas_device->enclosure_handle != 0)
683 dewtprintk(ioc, pr_info(MPT3SAS_FMT
684 "%s: enclosure logical id(0x%016llx), slot( %d)\n",
685 ioc->name, __func__, (unsigned long long)
686 sas_device->enclosure_logical_id, sas_device->slot));
687
688 if (sas_device->connector_name[0] != '\0')
689 dewtprintk(ioc, pr_info(MPT3SAS_FMT
690 "%s: enclosure level(0x%04x), connector name( %s)\n",
691 ioc->name, __func__,
692 sas_device->enclosure_level, sas_device->connector_name));
693
666 spin_lock_irqsave(&ioc->sas_device_lock, flags); 694 spin_lock_irqsave(&ioc->sas_device_lock, flags);
667 list_add_tail(&sas_device->list, &ioc->sas_device_list); 695 list_add_tail(&sas_device->list, &ioc->sas_device_list);
668 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 696 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
@@ -704,6 +732,18 @@ _scsih_sas_device_init_add(struct MPT3SAS_ADAPTER *ioc,
704 __func__, sas_device->handle, 732 __func__, sas_device->handle,
705 (unsigned long long)sas_device->sas_address)); 733 (unsigned long long)sas_device->sas_address));
706 734
735 if (sas_device->enclosure_handle != 0)
736 dewtprintk(ioc, pr_info(MPT3SAS_FMT
737 "%s: enclosure logical id(0x%016llx), slot( %d)\n",
738 ioc->name, __func__, (unsigned long long)
739 sas_device->enclosure_logical_id, sas_device->slot));
740
741 if (sas_device->connector_name[0] != '\0')
742 dewtprintk(ioc, pr_info(MPT3SAS_FMT
743 "%s: enclosure level(0x%04x), connector name( %s)\n",
744 ioc->name, __func__, sas_device->enclosure_level,
745 sas_device->connector_name));
746
707 spin_lock_irqsave(&ioc->sas_device_lock, flags); 747 spin_lock_irqsave(&ioc->sas_device_lock, flags);
708 list_add_tail(&sas_device->list, &ioc->sas_device_init_list); 748 list_add_tail(&sas_device->list, &ioc->sas_device_init_list);
709 _scsih_determine_boot_device(ioc, sas_device, 0); 749 _scsih_determine_boot_device(ioc, sas_device, 0);
@@ -1772,10 +1812,16 @@ _scsih_slave_configure(struct scsi_device *sdev)
1772 "sas_addr(0x%016llx), phy(%d), device_name(0x%016llx)\n", 1812 "sas_addr(0x%016llx), phy(%d), device_name(0x%016llx)\n",
1773 ds, handle, (unsigned long long)sas_device->sas_address, 1813 ds, handle, (unsigned long long)sas_device->sas_address,
1774 sas_device->phy, (unsigned long long)sas_device->device_name); 1814 sas_device->phy, (unsigned long long)sas_device->device_name);
1775 sdev_printk(KERN_INFO, sdev, 1815 if (sas_device->enclosure_handle != 0)
1776 "%s: enclosure_logical_id(0x%016llx), slot(%d)\n", 1816 sdev_printk(KERN_INFO, sdev,
1777 ds, (unsigned long long) 1817 "%s: enclosure_logical_id(0x%016llx), slot(%d)\n",
1778 sas_device->enclosure_logical_id, sas_device->slot); 1818 ds, (unsigned long long)
1819 sas_device->enclosure_logical_id, sas_device->slot);
1820 if (sas_device->connector_name[0] != '\0')
1821 sdev_printk(KERN_INFO, sdev,
1822 "%s: enclosure level(0x%04x), connector name( %s)\n",
1823 ds, sas_device->enclosure_level,
1824 sas_device->connector_name);
1779 1825
1780 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 1826 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
1781 1827
@@ -2189,10 +2235,17 @@ _scsih_tm_display_info(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd)
2189 sas_device->handle, 2235 sas_device->handle,
2190 (unsigned long long)sas_device->sas_address, 2236 (unsigned long long)sas_device->sas_address,
2191 sas_device->phy); 2237 sas_device->phy);
2192 starget_printk(KERN_INFO, starget, 2238 if (sas_device->enclosure_handle != 0)
2193 "enclosure_logical_id(0x%016llx), slot(%d)\n", 2239 starget_printk(KERN_INFO, starget,
2194 (unsigned long long)sas_device->enclosure_logical_id, 2240 "enclosure_logical_id(0x%016llx), slot(%d)\n",
2195 sas_device->slot); 2241 (unsigned long long)
2242 sas_device->enclosure_logical_id,
2243 sas_device->slot);
2244 if (sas_device->connector_name)
2245 starget_printk(KERN_INFO, starget,
2246 "enclosure level(0x%04x),connector name(%s)\n",
2247 sas_device->enclosure_level,
2248 sas_device->connector_name);
2196 } 2249 }
2197 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 2250 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
2198 } 2251 }
@@ -2552,6 +2605,75 @@ _scsih_fw_event_cleanup_queue(struct MPT3SAS_ADAPTER *ioc)
2552} 2605}
2553 2606
2554/** 2607/**
2608 * _scsih_internal_device_block - block the sdev device
2609 * @sdev: per device object
2610 * @sas_device_priv_data : per device driver private data
2611 *
2612 * make sure device is blocked without error, if not
2613 * print an error
2614 */
2615static void
2616_scsih_internal_device_block(struct scsi_device *sdev,
2617 struct MPT3SAS_DEVICE *sas_device_priv_data)
2618{
2619 int r = 0;
2620
2621 sdev_printk(KERN_INFO, sdev, "device_block, handle(0x%04x)\n",
2622 sas_device_priv_data->sas_target->handle);
2623 sas_device_priv_data->block = 1;
2624
2625 r = scsi_internal_device_block(sdev);
2626 if (r == -EINVAL)
2627 sdev_printk(KERN_WARNING, sdev,
2628 "device_block failed with return(%d) for handle(0x%04x)\n",
2629 sas_device_priv_data->sas_target->handle, r);
2630}
2631
2632/**
2633 * _scsih_internal_device_unblock - unblock the sdev device
2634 * @sdev: per device object
2635 * @sas_device_priv_data : per device driver private data
2636 * make sure device is unblocked without error, if not retry
2637 * by blocking and then unblocking
2638 */
2639
2640static void
2641_scsih_internal_device_unblock(struct scsi_device *sdev,
2642 struct MPT3SAS_DEVICE *sas_device_priv_data)
2643{
2644 int r = 0;
2645
2646 sdev_printk(KERN_WARNING, sdev, "device_unblock and setting to running, "
2647 "handle(0x%04x)\n", sas_device_priv_data->sas_target->handle);
2648 sas_device_priv_data->block = 0;
2649 r = scsi_internal_device_unblock(sdev, SDEV_RUNNING);
2650 if (r == -EINVAL) {
2651 /* The device has been set to SDEV_RUNNING by SD layer during
2652 * device addition but the request queue is still stopped by
2653 * our earlier block call. We need to perform a block again
2654 * to get the device to SDEV_BLOCK and then to SDEV_RUNNING */
2655
2656 sdev_printk(KERN_WARNING, sdev,
2657 "device_unblock failed with return(%d) for handle(0x%04x) "
2658 "performing a block followed by an unblock\n",
2659 sas_device_priv_data->sas_target->handle, r);
2660 sas_device_priv_data->block = 1;
2661 r = scsi_internal_device_block(sdev);
2662 if (r)
2663 sdev_printk(KERN_WARNING, sdev, "retried device_block "
2664 "failed with return(%d) for handle(0x%04x)\n",
2665 sas_device_priv_data->sas_target->handle, r);
2666
2667 sas_device_priv_data->block = 0;
2668 r = scsi_internal_device_unblock(sdev, SDEV_RUNNING);
2669 if (r)
2670 sdev_printk(KERN_WARNING, sdev, "retried device_unblock"
2671 " failed with return(%d) for handle(0x%04x)\n",
2672 sas_device_priv_data->sas_target->handle, r);
2673 }
2674}
2675
2676/**
2555 * _scsih_ublock_io_all_device - unblock every device 2677 * _scsih_ublock_io_all_device - unblock every device
2556 * @ioc: per adapter object 2678 * @ioc: per adapter object
2557 * 2679 *
@@ -2570,11 +2692,10 @@ _scsih_ublock_io_all_device(struct MPT3SAS_ADAPTER *ioc)
2570 if (!sas_device_priv_data->block) 2692 if (!sas_device_priv_data->block)
2571 continue; 2693 continue;
2572 2694
2573 sas_device_priv_data->block = 0;
2574 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev, 2695 dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
2575 "device_running, handle(0x%04x)\n", 2696 "device_running, handle(0x%04x)\n",
2576 sas_device_priv_data->sas_target->handle)); 2697 sas_device_priv_data->sas_target->handle));
2577 scsi_internal_device_unblock(sdev, SDEV_RUNNING); 2698 _scsih_internal_device_unblock(sdev, sas_device_priv_data);
2578 } 2699 }
2579} 2700}
2580 2701
@@ -2599,10 +2720,9 @@ _scsih_ublock_io_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address)
2599 if (sas_device_priv_data->sas_target->sas_address 2720 if (sas_device_priv_data->sas_target->sas_address
2600 != sas_address) 2721 != sas_address)
2601 continue; 2722 continue;
2602 if (sas_device_priv_data->block) { 2723 if (sas_device_priv_data->block)
2603 sas_device_priv_data->block = 0; 2724 _scsih_internal_device_unblock(sdev,
2604 scsi_internal_device_unblock(sdev, SDEV_RUNNING); 2725 sas_device_priv_data);
2605 }
2606 } 2726 }
2607} 2727}
2608 2728
@@ -2625,10 +2745,7 @@ _scsih_block_io_all_device(struct MPT3SAS_ADAPTER *ioc)
2625 continue; 2745 continue;
2626 if (sas_device_priv_data->block) 2746 if (sas_device_priv_data->block)
2627 continue; 2747 continue;
2628 sas_device_priv_data->block = 1; 2748 _scsih_internal_device_block(sdev, sas_device_priv_data);
2629 scsi_internal_device_block(sdev);
2630 sdev_printk(KERN_INFO, sdev, "device_blocked, handle(0x%04x)\n",
2631 sas_device_priv_data->sas_target->handle);
2632 } 2749 }
2633} 2750}
2634 2751
@@ -2644,6 +2761,11 @@ _scsih_block_io_device(struct MPT3SAS_ADAPTER *ioc, u16 handle)
2644{ 2761{
2645 struct MPT3SAS_DEVICE *sas_device_priv_data; 2762 struct MPT3SAS_DEVICE *sas_device_priv_data;
2646 struct scsi_device *sdev; 2763 struct scsi_device *sdev;
2764 struct _sas_device *sas_device;
2765
2766 sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
2767 if (!sas_device)
2768 return;
2647 2769
2648 shost_for_each_device(sdev, ioc->shost) { 2770 shost_for_each_device(sdev, ioc->shost) {
2649 sas_device_priv_data = sdev->hostdata; 2771 sas_device_priv_data = sdev->hostdata;
@@ -2653,10 +2775,9 @@ _scsih_block_io_device(struct MPT3SAS_ADAPTER *ioc, u16 handle)
2653 continue; 2775 continue;
2654 if (sas_device_priv_data->block) 2776 if (sas_device_priv_data->block)
2655 continue; 2777 continue;
2656 sas_device_priv_data->block = 1; 2778 if (sas_device->pend_sas_rphy_add)
2657 scsi_internal_device_block(sdev); 2779 continue;
2658 sdev_printk(KERN_INFO, sdev, 2780 _scsih_internal_device_block(sdev, sas_device_priv_data);
2659 "device_blocked, handle(0x%04x)\n", handle);
2660 } 2781 }
2661} 2782}
2662 2783
@@ -2806,6 +2927,18 @@ _scsih_tm_tr_send(struct MPT3SAS_ADAPTER *ioc, u16 handle)
2806 "setting delete flag: handle(0x%04x), sas_addr(0x%016llx)\n", 2927 "setting delete flag: handle(0x%04x), sas_addr(0x%016llx)\n",
2807 ioc->name, handle, 2928 ioc->name, handle,
2808 (unsigned long long)sas_address)); 2929 (unsigned long long)sas_address));
2930 if (sas_device->enclosure_handle != 0)
2931 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2932 "setting delete flag:enclosure logical id(0x%016llx),"
2933 " slot(%d)\n", ioc->name, (unsigned long long)
2934 sas_device->enclosure_logical_id,
2935 sas_device->slot));
2936 if (sas_device->connector_name)
2937 dewtprintk(ioc, pr_info(MPT3SAS_FMT
2938 "setting delete flag: enclosure level(0x%04x),"
2939 " connector name( %s)\n", ioc->name,
2940 sas_device->enclosure_level,
2941 sas_device->connector_name));
2809 _scsih_ublock_io_device(ioc, sas_address); 2942 _scsih_ublock_io_device(ioc, sas_address);
2810 sas_target_priv_data->handle = MPT3SAS_INVALID_DEVICE_HANDLE; 2943 sas_target_priv_data->handle = MPT3SAS_INVALID_DEVICE_HANDLE;
2811 } 2944 }
@@ -3821,10 +3954,19 @@ _scsih_scsi_ioc_info(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
3821 "\tsas_address(0x%016llx), phy(%d)\n", 3954 "\tsas_address(0x%016llx), phy(%d)\n",
3822 ioc->name, (unsigned long long) 3955 ioc->name, (unsigned long long)
3823 sas_device->sas_address, sas_device->phy); 3956 sas_device->sas_address, sas_device->phy);
3824 pr_warn(MPT3SAS_FMT 3957 if (sas_device->enclosure_handle != 0)
3825 "\tenclosure_logical_id(0x%016llx), slot(%d)\n", 3958 pr_warn(MPT3SAS_FMT
3826 ioc->name, (unsigned long long) 3959 "\tenclosure_logical_id(0x%016llx),"
3827 sas_device->enclosure_logical_id, sas_device->slot); 3960 "slot(%d)\n", ioc->name,
3961 (unsigned long long)
3962 sas_device->enclosure_logical_id,
3963 sas_device->slot);
3964 if (sas_device->connector_name[0])
3965 pr_warn(MPT3SAS_FMT
3966 "\tenclosure level(0x%04x),"
3967 " connector name( %s)\n", ioc->name,
3968 sas_device->enclosure_level,
3969 sas_device->connector_name);
3828 } 3970 }
3829 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 3971 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
3830 } 3972 }
@@ -3999,7 +4141,16 @@ _scsih_smart_predicted_fault(struct MPT3SAS_ADAPTER *ioc, u16 handle)
3999 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 4141 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4000 return; 4142 return;
4001 } 4143 }
4002 starget_printk(KERN_WARNING, starget, "predicted fault\n"); 4144 if (sas_device->enclosure_handle != 0)
4145 starget_printk(KERN_INFO, starget, "predicted fault, "
4146 "enclosure logical id(0x%016llx), slot(%d)\n",
4147 (unsigned long long)sas_device->enclosure_logical_id,
4148 sas_device->slot);
4149 if (sas_device->connector_name[0] != '\0')
4150 starget_printk(KERN_WARNING, starget, "predicted fault, "
4151 "enclosure level(0x%04x), connector name( %s)\n",
4152 sas_device->enclosure_level,
4153 sas_device->connector_name);
4003 spin_unlock_irqrestore(&ioc->sas_device_lock, flags); 4154 spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
4004 4155
4005 if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM) 4156 if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM)
@@ -4119,8 +4270,15 @@ _scsih_io_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
4119 _scsih_smart_predicted_fault(ioc, 4270 _scsih_smart_predicted_fault(ioc,
4120 le16_to_cpu(mpi_reply->DevHandle)); 4271 le16_to_cpu(mpi_reply->DevHandle));
4121 mpt3sas_trigger_scsi(ioc, data.skey, data.asc, data.ascq); 4272 mpt3sas_trigger_scsi(ioc, data.skey, data.asc, data.ascq);
4122 }
4123 4273
4274#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
4275 if (!(ioc->logging_level & MPT_DEBUG_REPLY) &&
4276 ((scmd->sense_buffer[2] == UNIT_ATTENTION) ||
4277 (scmd->sense_buffer[2] == MEDIUM_ERROR) ||
4278 (scmd->sense_buffer[2] == HARDWARE_ERROR)))
4279 _scsih_scsi_ioc_info(ioc, scmd, mpi_reply, smid);
4280#endif
4281 }
4124 switch (ioc_status) { 4282 switch (ioc_status) {
4125 case MPI2_IOCSTATUS_BUSY: 4283 case MPI2_IOCSTATUS_BUSY:
4126 case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES: 4284 case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
@@ -4146,6 +4304,9 @@ _scsih_io_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
4146 scmd->device->expecting_cc_ua = 1; 4304 scmd->device->expecting_cc_ua = 1;
4147 } 4305 }
4148 break; 4306 break;
4307 } else if (log_info == VIRTUAL_IO_FAILED_RETRY) {
4308 scmd->result = DID_RESET << 16;
4309 break;
4149 } 4310 }
4150 scmd->result = DID_SOFT_ERROR << 16; 4311 scmd->result = DID_SOFT_ERROR << 16;
4151 break; 4312 break;
@@ -4788,6 +4949,16 @@ _scsih_check_device(struct MPT3SAS_ADAPTER *ioc,
4788 sas_device->handle, handle); 4949 sas_device->handle, handle);
4789 sas_target_priv_data->handle = handle; 4950 sas_target_priv_data->handle = handle;
4790 sas_device->handle = handle; 4951 sas_device->handle = handle;
4952 if (sas_device_pg0.Flags &
4953 MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID) {
4954 sas_device->enclosure_level =
4955 le16_to_cpu(sas_device_pg0.EnclosureLevel);
4956 memcpy(&sas_device->connector_name[0],
4957 &sas_device_pg0.ConnectorName[0], 4);
4958 } else {
4959 sas_device->enclosure_level = 0;
4960 sas_device->connector_name[0] = '\0';
4961 }
4791 } 4962 }
4792 4963
4793 /* check if device is present */ 4964 /* check if device is present */
@@ -4894,14 +5065,24 @@ _scsih_add_device(struct MPT3SAS_ADAPTER *ioc, u16 handle, u8 phy_num,
4894 ioc->name, __FILE__, __LINE__, __func__); 5065 ioc->name, __FILE__, __LINE__, __func__);
4895 sas_device->enclosure_handle = 5066 sas_device->enclosure_handle =
4896 le16_to_cpu(sas_device_pg0.EnclosureHandle); 5067 le16_to_cpu(sas_device_pg0.EnclosureHandle);
4897 sas_device->slot = 5068 if (sas_device->enclosure_handle != 0)
4898 le16_to_cpu(sas_device_pg0.Slot); 5069 sas_device->slot =
5070 le16_to_cpu(sas_device_pg0.Slot);
4899 sas_device->device_info = device_info; 5071 sas_device->device_info = device_info;
4900 sas_device->sas_address = sas_address; 5072 sas_device->sas_address = sas_address;
4901 sas_device->phy = sas_device_pg0.PhyNum; 5073 sas_device->phy = sas_device_pg0.PhyNum;
4902 sas_device->fast_path = (le16_to_cpu(sas_device_pg0.Flags) & 5074 sas_device->fast_path = (le16_to_cpu(sas_device_pg0.Flags) &
4903 MPI25_SAS_DEVICE0_FLAGS_FAST_PATH_CAPABLE) ? 1 : 0; 5075 MPI25_SAS_DEVICE0_FLAGS_FAST_PATH_CAPABLE) ? 1 : 0;
4904 5076
5077 if (sas_device_pg0.Flags & MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID) {
5078 sas_device->enclosure_level =
5079 le16_to_cpu(sas_device_pg0.EnclosureLevel);
5080 memcpy(&sas_device->connector_name[0],
5081 &sas_device_pg0.ConnectorName[0], 4);
5082 } else {
5083 sas_device->enclosure_level = 0;
5084 sas_device->connector_name[0] = '\0';
5085 }
4905 /* get enclosure_logical_id */ 5086 /* get enclosure_logical_id */
4906 if (sas_device->enclosure_handle && !(mpt3sas_config_get_enclosure_pg0( 5087 if (sas_device->enclosure_handle && !(mpt3sas_config_get_enclosure_pg0(
4907 ioc, &mpi_reply, &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE, 5088 ioc, &mpi_reply, &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
@@ -4943,6 +5124,18 @@ _scsih_remove_device(struct MPT3SAS_ADAPTER *ioc,
4943 ioc->name, __func__, 5124 ioc->name, __func__,
4944 sas_device->handle, (unsigned long long) 5125 sas_device->handle, (unsigned long long)
4945 sas_device->sas_address)); 5126 sas_device->sas_address));
5127 if (sas_device->enclosure_handle != 0)
5128 dewtprintk(ioc, pr_info(MPT3SAS_FMT
5129 "%s: enter: enclosure logical id(0x%016llx), slot(%d)\n",
5130 ioc->name, __func__,
5131 (unsigned long long)sas_device->enclosure_logical_id,
5132 sas_device->slot));
5133 if (sas_device->connector_name[0] != '\0')
5134 dewtprintk(ioc, pr_info(MPT3SAS_FMT
5135 "%s: enter: enclosure level(0x%04x), connector name( %s)\n",
5136 ioc->name, __func__,
5137 sas_device->enclosure_level,
5138 sas_device->connector_name));
4946 5139
4947 if (sas_device->starget && sas_device->starget->hostdata) { 5140 if (sas_device->starget && sas_device->starget->hostdata) {
4948 sas_target_priv_data = sas_device->starget->hostdata; 5141 sas_target_priv_data = sas_device->starget->hostdata;
@@ -4959,12 +5152,34 @@ _scsih_remove_device(struct MPT3SAS_ADAPTER *ioc,
4959 "removing handle(0x%04x), sas_addr(0x%016llx)\n", 5152 "removing handle(0x%04x), sas_addr(0x%016llx)\n",
4960 ioc->name, sas_device->handle, 5153 ioc->name, sas_device->handle,
4961 (unsigned long long) sas_device->sas_address); 5154 (unsigned long long) sas_device->sas_address);
5155 if (sas_device->enclosure_handle != 0)
5156 pr_info(MPT3SAS_FMT
5157 "removing : enclosure logical id(0x%016llx), slot(%d)\n",
5158 ioc->name,
5159 (unsigned long long)sas_device->enclosure_logical_id,
5160 sas_device->slot);
5161 if (sas_device->connector_name[0] != '\0')
5162 pr_info(MPT3SAS_FMT
5163 "removing enclosure level(0x%04x), connector name( %s)\n",
5164 ioc->name, sas_device->enclosure_level,
5165 sas_device->connector_name);
4962 5166
4963 dewtprintk(ioc, pr_info(MPT3SAS_FMT 5167 dewtprintk(ioc, pr_info(MPT3SAS_FMT
4964 "%s: exit: handle(0x%04x), sas_addr(0x%016llx)\n", 5168 "%s: exit: handle(0x%04x), sas_addr(0x%016llx)\n",
4965 ioc->name, __func__, 5169 ioc->name, __func__,
4966 sas_device->handle, (unsigned long long) 5170 sas_device->handle, (unsigned long long)
4967 sas_device->sas_address)); 5171 sas_device->sas_address));
5172 if (sas_device->enclosure_handle != 0)
5173 dewtprintk(ioc, pr_info(MPT3SAS_FMT
5174 "%s: exit: enclosure logical id(0x%016llx), slot(%d)\n",
5175 ioc->name, __func__,
5176 (unsigned long long)sas_device->enclosure_logical_id,
5177 sas_device->slot));
5178 if (sas_device->connector_name[0] != '\0')
5179 dewtprintk(ioc, pr_info(MPT3SAS_FMT
5180 "%s: exit: enclosure level(0x%04x), connector name(%s)\n",
5181 ioc->name, __func__, sas_device->enclosure_level,
5182 sas_device->connector_name));
4968 5183
4969 kfree(sas_device); 5184 kfree(sas_device);
4970} 5185}
@@ -6357,9 +6572,7 @@ _scsih_prep_device_scan(struct MPT3SAS_ADAPTER *ioc)
6357/** 6572/**
6358 * _scsih_mark_responding_sas_device - mark a sas_devices as responding 6573 * _scsih_mark_responding_sas_device - mark a sas_devices as responding
6359 * @ioc: per adapter object 6574 * @ioc: per adapter object
6360 * @sas_address: sas address 6575 * @sas_device_pg0: SAS Device page 0
6361 * @slot: enclosure slot id
6362 * @handle: device handle
6363 * 6576 *
6364 * After host reset, find out whether devices are still responding. 6577 * After host reset, find out whether devices are still responding.
6365 * Used in _scsih_remove_unresponsive_sas_devices. 6578 * Used in _scsih_remove_unresponsive_sas_devices.
@@ -6367,8 +6580,8 @@ _scsih_prep_device_scan(struct MPT3SAS_ADAPTER *ioc)
6367 * Return nothing. 6580 * Return nothing.
6368 */ 6581 */
6369static void 6582static void
6370_scsih_mark_responding_sas_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address, 6583_scsih_mark_responding_sas_device(struct MPT3SAS_ADAPTER *ioc,
6371 u16 slot, u16 handle) 6584Mpi2SasDevicePage0_t *sas_device_pg0)
6372{ 6585{
6373 struct MPT3SAS_TARGET *sas_target_priv_data = NULL; 6586 struct MPT3SAS_TARGET *sas_target_priv_data = NULL;
6374 struct scsi_target *starget; 6587 struct scsi_target *starget;
@@ -6377,8 +6590,8 @@ _scsih_mark_responding_sas_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
6377 6590
6378 spin_lock_irqsave(&ioc->sas_device_lock, flags); 6591 spin_lock_irqsave(&ioc->sas_device_lock, flags);
6379 list_for_each_entry(sas_device, &ioc->sas_device_list, list) { 6592 list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
6380 if (sas_device->sas_address == sas_address && 6593 if ((sas_device->sas_address == sas_device_pg0->SASAddress) &&
6381 sas_device->slot == slot) { 6594 (sas_device->slot == sas_device_pg0->Slot)) {
6382 sas_device->responding = 1; 6595 sas_device->responding = 1;
6383 starget = sas_device->starget; 6596 starget = sas_device->starget;
6384 if (starget && starget->hostdata) { 6597 if (starget && starget->hostdata) {
@@ -6387,22 +6600,40 @@ _scsih_mark_responding_sas_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
6387 sas_target_priv_data->deleted = 0; 6600 sas_target_priv_data->deleted = 0;
6388 } else 6601 } else
6389 sas_target_priv_data = NULL; 6602 sas_target_priv_data = NULL;
6390 if (starget) 6603 if (starget) {
6391 starget_printk(KERN_INFO, starget, 6604 starget_printk(KERN_INFO, starget,
6392 "handle(0x%04x), sas_addr(0x%016llx), " 6605 "handle(0x%04x), sas_addr(0x%016llx)\n",
6393 "enclosure logical id(0x%016llx), " 6606 sas_device_pg0->DevHandle,
6394 "slot(%d)\n", handle,
6395 (unsigned long long)sas_device->sas_address,
6396 (unsigned long long) 6607 (unsigned long long)
6397 sas_device->enclosure_logical_id, 6608 sas_device->sas_address);
6398 sas_device->slot); 6609
6399 if (sas_device->handle == handle) 6610 if (sas_device->enclosure_handle != 0)
6611 starget_printk(KERN_INFO, starget,
6612 "enclosure logical id(0x%016llx),"
6613 " slot(%d)\n",
6614 (unsigned long long)
6615 sas_device->enclosure_logical_id,
6616 sas_device->slot);
6617 }
6618 if (sas_device_pg0->Flags &
6619 MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID) {
6620 sas_device->enclosure_level =
6621 le16_to_cpu(sas_device_pg0->EnclosureLevel);
6622 memcpy(&sas_device->connector_name[0],
6623 &sas_device_pg0->ConnectorName[0], 4);
6624 } else {
6625 sas_device->enclosure_level = 0;
6626 sas_device->connector_name[0] = '\0';
6627 }
6628
6629 if (sas_device->handle == sas_device_pg0->DevHandle)
6400 goto out; 6630 goto out;
6401 pr_info("\thandle changed from(0x%04x)!!!\n", 6631 pr_info("\thandle changed from(0x%04x)!!!\n",
6402 sas_device->handle); 6632 sas_device->handle);
6403 sas_device->handle = handle; 6633 sas_device->handle = sas_device_pg0->DevHandle;
6404 if (sas_target_priv_data) 6634 if (sas_target_priv_data)
6405 sas_target_priv_data->handle = handle; 6635 sas_target_priv_data->handle =
6636 sas_device_pg0->DevHandle;
6406 goto out; 6637 goto out;
6407 } 6638 }
6408 } 6639 }
@@ -6441,13 +6672,15 @@ _scsih_search_responding_sas_devices(struct MPT3SAS_ADAPTER *ioc)
6441 MPI2_IOCSTATUS_MASK; 6672 MPI2_IOCSTATUS_MASK;
6442 if (ioc_status != MPI2_IOCSTATUS_SUCCESS) 6673 if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
6443 break; 6674 break;
6444 handle = le16_to_cpu(sas_device_pg0.DevHandle); 6675 handle = sas_device_pg0.DevHandle =
6676 le16_to_cpu(sas_device_pg0.DevHandle);
6445 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo); 6677 device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
6446 if (!(_scsih_is_end_device(device_info))) 6678 if (!(_scsih_is_end_device(device_info)))
6447 continue; 6679 continue;
6448 _scsih_mark_responding_sas_device(ioc, 6680 sas_device_pg0.SASAddress =
6449 le64_to_cpu(sas_device_pg0.SASAddress), 6681 le64_to_cpu(sas_device_pg0.SASAddress);
6450 le16_to_cpu(sas_device_pg0.Slot), handle); 6682 sas_device_pg0.Slot = le16_to_cpu(sas_device_pg0.Slot);
6683 _scsih_mark_responding_sas_device(ioc, &sas_device_pg0);
6451 } 6684 }
6452 6685
6453 out: 6686 out:
@@ -7854,8 +8087,8 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
7854 /* event thread */ 8087 /* event thread */
7855 snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name), 8088 snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name),
7856 "fw_event%d", ioc->id); 8089 "fw_event%d", ioc->id);
7857 ioc->firmware_event_thread = create_singlethread_workqueue( 8090 ioc->firmware_event_thread = alloc_ordered_workqueue(
7858 ioc->firmware_event_name); 8091 ioc->firmware_event_name, WQ_MEM_RECLAIM);
7859 if (!ioc->firmware_event_thread) { 8092 if (!ioc->firmware_event_thread) {
7860 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 8093 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
7861 ioc->name, __FILE__, __LINE__, __func__); 8094 ioc->name, __FILE__, __LINE__, __func__);
diff --git a/drivers/scsi/mpt3sas/mpt3sas_transport.c b/drivers/scsi/mpt3sas/mpt3sas_transport.c
index efb98afc46e0..70fd019e7ee5 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_transport.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_transport.c
@@ -649,6 +649,7 @@ mpt3sas_transport_port_add(struct MPT3SAS_ADAPTER *ioc, u16 handle,
649 unsigned long flags; 649 unsigned long flags;
650 struct _sas_node *sas_node; 650 struct _sas_node *sas_node;
651 struct sas_rphy *rphy; 651 struct sas_rphy *rphy;
652 struct _sas_device *sas_device = NULL;
652 int i; 653 int i;
653 struct sas_port *port; 654 struct sas_port *port;
654 655
@@ -731,10 +732,27 @@ mpt3sas_transport_port_add(struct MPT3SAS_ADAPTER *ioc, u16 handle,
731 mpt3sas_port->remote_identify.device_type); 732 mpt3sas_port->remote_identify.device_type);
732 733
733 rphy->identify = mpt3sas_port->remote_identify; 734 rphy->identify = mpt3sas_port->remote_identify;
735
736 if (mpt3sas_port->remote_identify.device_type == SAS_END_DEVICE) {
737 sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
738 mpt3sas_port->remote_identify.sas_address);
739 if (!sas_device) {
740 dfailprintk(ioc, printk(MPT3SAS_FMT
741 "failure at %s:%d/%s()!\n",
742 ioc->name, __FILE__, __LINE__, __func__));
743 goto out_fail;
744 }
745 sas_device->pend_sas_rphy_add = 1;
746 }
747
734 if ((sas_rphy_add(rphy))) { 748 if ((sas_rphy_add(rphy))) {
735 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", 749 pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
736 ioc->name, __FILE__, __LINE__, __func__); 750 ioc->name, __FILE__, __LINE__, __func__);
737 } 751 }
752
753 if (mpt3sas_port->remote_identify.device_type == SAS_END_DEVICE)
754 sas_device->pend_sas_rphy_add = 0;
755
738 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT)) 756 if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
739 dev_printk(KERN_INFO, &rphy->dev, 757 dev_printk(KERN_INFO, &rphy->dev,
740 "add: handle(0x%04x), sas_addr(0x%016llx)\n", 758 "add: handle(0x%04x), sas_addr(0x%016llx)\n",
@@ -1946,7 +1964,7 @@ _transport_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
1946 } else { 1964 } else {
1947 dma_addr_out = pci_map_single(ioc->pdev, bio_data(req->bio), 1965 dma_addr_out = pci_map_single(ioc->pdev, bio_data(req->bio),
1948 blk_rq_bytes(req), PCI_DMA_BIDIRECTIONAL); 1966 blk_rq_bytes(req), PCI_DMA_BIDIRECTIONAL);
1949 if (!dma_addr_out) { 1967 if (pci_dma_mapping_error(ioc->pdev, dma_addr_out)) {
1950 pr_info(MPT3SAS_FMT "%s(): DMA Addr out = NULL\n", 1968 pr_info(MPT3SAS_FMT "%s(): DMA Addr out = NULL\n",
1951 ioc->name, __func__); 1969 ioc->name, __func__);
1952 rc = -ENOMEM; 1970 rc = -ENOMEM;
@@ -1968,7 +1986,7 @@ _transport_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
1968 } else { 1986 } else {
1969 dma_addr_in = pci_map_single(ioc->pdev, bio_data(rsp->bio), 1987 dma_addr_in = pci_map_single(ioc->pdev, bio_data(rsp->bio),
1970 blk_rq_bytes(rsp), PCI_DMA_BIDIRECTIONAL); 1988 blk_rq_bytes(rsp), PCI_DMA_BIDIRECTIONAL);
1971 if (!dma_addr_in) { 1989 if (pci_dma_mapping_error(ioc->pdev, dma_addr_in)) {
1972 pr_info(MPT3SAS_FMT "%s(): DMA Addr in = NULL\n", 1990 pr_info(MPT3SAS_FMT "%s(): DMA Addr in = NULL\n",
1973 ioc->name, __func__); 1991 ioc->name, __func__);
1974 rc = -ENOMEM; 1992 rc = -ENOMEM;
diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index 39306b1e704c..04e67a190652 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -2642,6 +2642,7 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
2642 ts->resp = SAS_TASK_COMPLETE; 2642 ts->resp = SAS_TASK_COMPLETE;
2643 ts->stat = SAS_OPEN_REJECT; 2643 ts->stat = SAS_OPEN_REJECT;
2644 ts->open_rej_reason = SAS_OREJ_RSVD_RETRY; 2644 ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2645 break;
2645 default: 2646 default:
2646 PM8001_IO_DBG(pm8001_ha, 2647 PM8001_IO_DBG(pm8001_ha,
2647 pm8001_printk("Unknown status 0x%x\n", status)); 2648 pm8001_printk("Unknown status 0x%x\n", status));
diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index 0e1628f2018e..9a389f1508de 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -2337,6 +2337,7 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
2337 ts->resp = SAS_TASK_COMPLETE; 2337 ts->resp = SAS_TASK_COMPLETE;
2338 ts->stat = SAS_OPEN_REJECT; 2338 ts->stat = SAS_OPEN_REJECT;
2339 ts->open_rej_reason = SAS_OREJ_RSVD_RETRY; 2339 ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
2340 break;
2340 default: 2341 default:
2341 PM8001_IO_DBG(pm8001_ha, 2342 PM8001_IO_DBG(pm8001_ha,
2342 pm8001_printk("Unknown status 0x%x\n", status)); 2343 pm8001_printk("Unknown status 0x%x\n", status));
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 30268bb2ddb6..dfcc45bb03b1 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -25,6 +25,9 @@
25 * module options to "modprobe scsi_debug num_tgts=2" [20021221] 25 * module options to "modprobe scsi_debug num_tgts=2" [20021221]
26 */ 26 */
27 27
28
29#define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__
30
28#include <linux/module.h> 31#include <linux/module.h>
29 32
30#include <linux/kernel.h> 33#include <linux/kernel.h>
@@ -201,7 +204,6 @@ static const char *scsi_debug_version_date = "20141022";
201/* If REPORT LUNS has luns >= 256 it can choose "flat space" (value 1) 204/* If REPORT LUNS has luns >= 256 it can choose "flat space" (value 1)
202 * or "peripheral device" addressing (value 0) */ 205 * or "peripheral device" addressing (value 0) */
203#define SAM2_LUN_ADDRESS_METHOD 0 206#define SAM2_LUN_ADDRESS_METHOD 0
204#define SAM2_WLUN_REPORT_LUNS 0xc101
205 207
206/* SCSI_DEBUG_CANQUEUE is the maximum number of commands that can be queued 208/* SCSI_DEBUG_CANQUEUE is the maximum number of commands that can be queued
207 * (for response) at one time. Can be reduced by max_queue option. Command 209 * (for response) at one time. Can be reduced by max_queue option. Command
@@ -698,7 +700,7 @@ static void sdebug_max_tgts_luns(void)
698 else 700 else
699 hpnt->max_id = scsi_debug_num_tgts; 701 hpnt->max_id = scsi_debug_num_tgts;
700 /* scsi_debug_max_luns; */ 702 /* scsi_debug_max_luns; */
701 hpnt->max_lun = SAM2_WLUN_REPORT_LUNS; 703 hpnt->max_lun = SCSI_W_LUN_REPORT_LUNS + 1;
702 } 704 }
703 spin_unlock(&sdebug_host_list_lock); 705 spin_unlock(&sdebug_host_list_lock);
704} 706}
@@ -1288,7 +1290,7 @@ static int resp_inquiry(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
1288 arr = kzalloc(SDEBUG_MAX_INQ_ARR_SZ, GFP_ATOMIC); 1290 arr = kzalloc(SDEBUG_MAX_INQ_ARR_SZ, GFP_ATOMIC);
1289 if (! arr) 1291 if (! arr)
1290 return DID_REQUEUE << 16; 1292 return DID_REQUEUE << 16;
1291 have_wlun = (scp->device->lun == SAM2_WLUN_REPORT_LUNS); 1293 have_wlun = (scp->device->lun == SCSI_W_LUN_REPORT_LUNS);
1292 if (have_wlun) 1294 if (have_wlun)
1293 pq_pdt = 0x1e; /* present, wlun */ 1295 pq_pdt = 0x1e; /* present, wlun */
1294 else if (scsi_debug_no_lun_0 && (0 == devip->lun)) 1296 else if (scsi_debug_no_lun_0 && (0 == devip->lun))
@@ -1427,12 +1429,11 @@ static int resp_requests(struct scsi_cmnd * scp,
1427 unsigned char * sbuff; 1429 unsigned char * sbuff;
1428 unsigned char *cmd = scp->cmnd; 1430 unsigned char *cmd = scp->cmnd;
1429 unsigned char arr[SCSI_SENSE_BUFFERSIZE]; 1431 unsigned char arr[SCSI_SENSE_BUFFERSIZE];
1430 bool dsense, want_dsense; 1432 bool dsense;
1431 int len = 18; 1433 int len = 18;
1432 1434
1433 memset(arr, 0, sizeof(arr)); 1435 memset(arr, 0, sizeof(arr));
1434 dsense = !!(cmd[1] & 1); 1436 dsense = !!(cmd[1] & 1);
1435 want_dsense = dsense || scsi_debug_dsense;
1436 sbuff = scp->sense_buffer; 1437 sbuff = scp->sense_buffer;
1437 if ((iec_m_pg[2] & 0x4) && (6 == (iec_m_pg[3] & 0xf))) { 1438 if ((iec_m_pg[2] & 0x4) && (6 == (iec_m_pg[3] & 0xf))) {
1438 if (dsense) { 1439 if (dsense) {
@@ -2446,8 +2447,7 @@ static int dif_verify(struct sd_dif_tuple *sdt, const void *data,
2446 __be16 csum = dif_compute_csum(data, scsi_debug_sector_size); 2447 __be16 csum = dif_compute_csum(data, scsi_debug_sector_size);
2447 2448
2448 if (sdt->guard_tag != csum) { 2449 if (sdt->guard_tag != csum) {
2449 pr_err("%s: GUARD check failed on sector %lu rcvd 0x%04x, data 0x%04x\n", 2450 pr_err("GUARD check failed on sector %lu rcvd 0x%04x, data 0x%04x\n",
2450 __func__,
2451 (unsigned long)sector, 2451 (unsigned long)sector,
2452 be16_to_cpu(sdt->guard_tag), 2452 be16_to_cpu(sdt->guard_tag),
2453 be16_to_cpu(csum)); 2453 be16_to_cpu(csum));
@@ -2455,14 +2455,14 @@ static int dif_verify(struct sd_dif_tuple *sdt, const void *data,
2455 } 2455 }
2456 if (scsi_debug_dif == SD_DIF_TYPE1_PROTECTION && 2456 if (scsi_debug_dif == SD_DIF_TYPE1_PROTECTION &&
2457 be32_to_cpu(sdt->ref_tag) != (sector & 0xffffffff)) { 2457 be32_to_cpu(sdt->ref_tag) != (sector & 0xffffffff)) {
2458 pr_err("%s: REF check failed on sector %lu\n", 2458 pr_err("REF check failed on sector %lu\n",
2459 __func__, (unsigned long)sector); 2459 (unsigned long)sector);
2460 return 0x03; 2460 return 0x03;
2461 } 2461 }
2462 if (scsi_debug_dif == SD_DIF_TYPE2_PROTECTION && 2462 if (scsi_debug_dif == SD_DIF_TYPE2_PROTECTION &&
2463 be32_to_cpu(sdt->ref_tag) != ei_lba) { 2463 be32_to_cpu(sdt->ref_tag) != ei_lba) {
2464 pr_err("%s: REF check failed on sector %lu\n", 2464 pr_err("REF check failed on sector %lu\n",
2465 __func__, (unsigned long)sector); 2465 (unsigned long)sector);
2466 return 0x03; 2466 return 0x03;
2467 } 2467 }
2468 return 0; 2468 return 0;
@@ -2680,7 +2680,7 @@ resp_read_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
2680 return 0; 2680 return 0;
2681} 2681}
2682 2682
2683void dump_sector(unsigned char *buf, int len) 2683static void dump_sector(unsigned char *buf, int len)
2684{ 2684{
2685 int i, j, n; 2685 int i, j, n;
2686 2686
@@ -3365,8 +3365,8 @@ static int resp_report_luns(struct scsi_cmnd * scp,
3365 one_lun[i].scsi_lun[1] = lun & 0xff; 3365 one_lun[i].scsi_lun[1] = lun & 0xff;
3366 } 3366 }
3367 if (want_wlun) { 3367 if (want_wlun) {
3368 one_lun[i].scsi_lun[0] = (SAM2_WLUN_REPORT_LUNS >> 8) & 0xff; 3368 one_lun[i].scsi_lun[0] = (SCSI_W_LUN_REPORT_LUNS >> 8) & 0xff;
3369 one_lun[i].scsi_lun[1] = SAM2_WLUN_REPORT_LUNS & 0xff; 3369 one_lun[i].scsi_lun[1] = SCSI_W_LUN_REPORT_LUNS & 0xff;
3370 i++; 3370 i++;
3371 } 3371 }
3372 alloc_len = (unsigned char *)(one_lun + i) - arr; 3372 alloc_len = (unsigned char *)(one_lun + i) - arr;
@@ -3449,7 +3449,7 @@ static void sdebug_q_cmd_complete(unsigned long indx)
3449 atomic_inc(&sdebug_completions); 3449 atomic_inc(&sdebug_completions);
3450 qa_indx = indx; 3450 qa_indx = indx;
3451 if ((qa_indx < 0) || (qa_indx >= SCSI_DEBUG_CANQUEUE)) { 3451 if ((qa_indx < 0) || (qa_indx >= SCSI_DEBUG_CANQUEUE)) {
3452 pr_err("%s: wild qa_indx=%d\n", __func__, qa_indx); 3452 pr_err("wild qa_indx=%d\n", qa_indx);
3453 return; 3453 return;
3454 } 3454 }
3455 spin_lock_irqsave(&queued_arr_lock, iflags); 3455 spin_lock_irqsave(&queued_arr_lock, iflags);
@@ -3457,21 +3457,21 @@ static void sdebug_q_cmd_complete(unsigned long indx)
3457 scp = sqcp->a_cmnd; 3457 scp = sqcp->a_cmnd;
3458 if (NULL == scp) { 3458 if (NULL == scp) {
3459 spin_unlock_irqrestore(&queued_arr_lock, iflags); 3459 spin_unlock_irqrestore(&queued_arr_lock, iflags);
3460 pr_err("%s: scp is NULL\n", __func__); 3460 pr_err("scp is NULL\n");
3461 return; 3461 return;
3462 } 3462 }
3463 devip = (struct sdebug_dev_info *)scp->device->hostdata; 3463 devip = (struct sdebug_dev_info *)scp->device->hostdata;
3464 if (devip) 3464 if (devip)
3465 atomic_dec(&devip->num_in_q); 3465 atomic_dec(&devip->num_in_q);
3466 else 3466 else
3467 pr_err("%s: devip=NULL\n", __func__); 3467 pr_err("devip=NULL\n");
3468 if (atomic_read(&retired_max_queue) > 0) 3468 if (atomic_read(&retired_max_queue) > 0)
3469 retiring = 1; 3469 retiring = 1;
3470 3470
3471 sqcp->a_cmnd = NULL; 3471 sqcp->a_cmnd = NULL;
3472 if (!test_and_clear_bit(qa_indx, queued_in_use_bm)) { 3472 if (!test_and_clear_bit(qa_indx, queued_in_use_bm)) {
3473 spin_unlock_irqrestore(&queued_arr_lock, iflags); 3473 spin_unlock_irqrestore(&queued_arr_lock, iflags);
3474 pr_err("%s: Unexpected completion\n", __func__); 3474 pr_err("Unexpected completion\n");
3475 return; 3475 return;
3476 } 3476 }
3477 3477
@@ -3481,7 +3481,7 @@ static void sdebug_q_cmd_complete(unsigned long indx)
3481 retval = atomic_read(&retired_max_queue); 3481 retval = atomic_read(&retired_max_queue);
3482 if (qa_indx >= retval) { 3482 if (qa_indx >= retval) {
3483 spin_unlock_irqrestore(&queued_arr_lock, iflags); 3483 spin_unlock_irqrestore(&queued_arr_lock, iflags);
3484 pr_err("%s: index %d too large\n", __func__, retval); 3484 pr_err("index %d too large\n", retval);
3485 return; 3485 return;
3486 } 3486 }
3487 k = find_last_bit(queued_in_use_bm, retval); 3487 k = find_last_bit(queued_in_use_bm, retval);
@@ -3509,7 +3509,7 @@ sdebug_q_cmd_hrt_complete(struct hrtimer *timer)
3509 atomic_inc(&sdebug_completions); 3509 atomic_inc(&sdebug_completions);
3510 qa_indx = sd_hrtp->qa_indx; 3510 qa_indx = sd_hrtp->qa_indx;
3511 if ((qa_indx < 0) || (qa_indx >= SCSI_DEBUG_CANQUEUE)) { 3511 if ((qa_indx < 0) || (qa_indx >= SCSI_DEBUG_CANQUEUE)) {
3512 pr_err("%s: wild qa_indx=%d\n", __func__, qa_indx); 3512 pr_err("wild qa_indx=%d\n", qa_indx);
3513 goto the_end; 3513 goto the_end;
3514 } 3514 }
3515 spin_lock_irqsave(&queued_arr_lock, iflags); 3515 spin_lock_irqsave(&queued_arr_lock, iflags);
@@ -3517,21 +3517,21 @@ sdebug_q_cmd_hrt_complete(struct hrtimer *timer)
3517 scp = sqcp->a_cmnd; 3517 scp = sqcp->a_cmnd;
3518 if (NULL == scp) { 3518 if (NULL == scp) {
3519 spin_unlock_irqrestore(&queued_arr_lock, iflags); 3519 spin_unlock_irqrestore(&queued_arr_lock, iflags);
3520 pr_err("%s: scp is NULL\n", __func__); 3520 pr_err("scp is NULL\n");
3521 goto the_end; 3521 goto the_end;
3522 } 3522 }
3523 devip = (struct sdebug_dev_info *)scp->device->hostdata; 3523 devip = (struct sdebug_dev_info *)scp->device->hostdata;
3524 if (devip) 3524 if (devip)
3525 atomic_dec(&devip->num_in_q); 3525 atomic_dec(&devip->num_in_q);
3526 else 3526 else
3527 pr_err("%s: devip=NULL\n", __func__); 3527 pr_err("devip=NULL\n");
3528 if (atomic_read(&retired_max_queue) > 0) 3528 if (atomic_read(&retired_max_queue) > 0)
3529 retiring = 1; 3529 retiring = 1;
3530 3530
3531 sqcp->a_cmnd = NULL; 3531 sqcp->a_cmnd = NULL;
3532 if (!test_and_clear_bit(qa_indx, queued_in_use_bm)) { 3532 if (!test_and_clear_bit(qa_indx, queued_in_use_bm)) {
3533 spin_unlock_irqrestore(&queued_arr_lock, iflags); 3533 spin_unlock_irqrestore(&queued_arr_lock, iflags);
3534 pr_err("%s: Unexpected completion\n", __func__); 3534 pr_err("Unexpected completion\n");
3535 goto the_end; 3535 goto the_end;
3536 } 3536 }
3537 3537
@@ -3541,7 +3541,7 @@ sdebug_q_cmd_hrt_complete(struct hrtimer *timer)
3541 retval = atomic_read(&retired_max_queue); 3541 retval = atomic_read(&retired_max_queue);
3542 if (qa_indx >= retval) { 3542 if (qa_indx >= retval) {
3543 spin_unlock_irqrestore(&queued_arr_lock, iflags); 3543 spin_unlock_irqrestore(&queued_arr_lock, iflags);
3544 pr_err("%s: index %d too large\n", __func__, retval); 3544 pr_err("index %d too large\n", retval);
3545 goto the_end; 3545 goto the_end;
3546 } 3546 }
3547 k = find_last_bit(queued_in_use_bm, retval); 3547 k = find_last_bit(queued_in_use_bm, retval);
@@ -3580,7 +3580,7 @@ static struct sdebug_dev_info * devInfoReg(struct scsi_device * sdev)
3580 return devip; 3580 return devip;
3581 sdbg_host = *(struct sdebug_host_info **)shost_priv(sdev->host); 3581 sdbg_host = *(struct sdebug_host_info **)shost_priv(sdev->host);
3582 if (!sdbg_host) { 3582 if (!sdbg_host) {
3583 pr_err("%s: Host info NULL\n", __func__); 3583 pr_err("Host info NULL\n");
3584 return NULL; 3584 return NULL;
3585 } 3585 }
3586 list_for_each_entry(devip, &sdbg_host->dev_info_list, dev_list) { 3586 list_for_each_entry(devip, &sdbg_host->dev_info_list, dev_list) {
@@ -3596,8 +3596,7 @@ static struct sdebug_dev_info * devInfoReg(struct scsi_device * sdev)
3596 if (!open_devip) { /* try and make a new one */ 3596 if (!open_devip) { /* try and make a new one */
3597 open_devip = sdebug_device_create(sdbg_host, GFP_ATOMIC); 3597 open_devip = sdebug_device_create(sdbg_host, GFP_ATOMIC);
3598 if (!open_devip) { 3598 if (!open_devip) {
3599 printk(KERN_ERR "%s: out of memory at line %d\n", 3599 pr_err("out of memory at line %d\n", __LINE__);
3600 __func__, __LINE__);
3601 return NULL; 3600 return NULL;
3602 } 3601 }
3603 } 3602 }
@@ -3615,7 +3614,7 @@ static struct sdebug_dev_info * devInfoReg(struct scsi_device * sdev)
3615static int scsi_debug_slave_alloc(struct scsi_device *sdp) 3614static int scsi_debug_slave_alloc(struct scsi_device *sdp)
3616{ 3615{
3617 if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts) 3616 if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
3618 printk(KERN_INFO "scsi_debug: slave_alloc <%u %u %u %llu>\n", 3617 pr_info("slave_alloc <%u %u %u %llu>\n",
3619 sdp->host->host_no, sdp->channel, sdp->id, sdp->lun); 3618 sdp->host->host_no, sdp->channel, sdp->id, sdp->lun);
3620 queue_flag_set_unlocked(QUEUE_FLAG_BIDI, sdp->request_queue); 3619 queue_flag_set_unlocked(QUEUE_FLAG_BIDI, sdp->request_queue);
3621 return 0; 3620 return 0;
@@ -3626,7 +3625,7 @@ static int scsi_debug_slave_configure(struct scsi_device *sdp)
3626 struct sdebug_dev_info *devip; 3625 struct sdebug_dev_info *devip;
3627 3626
3628 if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts) 3627 if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
3629 printk(KERN_INFO "scsi_debug: slave_configure <%u %u %u %llu>\n", 3628 pr_info("slave_configure <%u %u %u %llu>\n",
3630 sdp->host->host_no, sdp->channel, sdp->id, sdp->lun); 3629 sdp->host->host_no, sdp->channel, sdp->id, sdp->lun);
3631 if (sdp->host->max_cmd_len != SCSI_DEBUG_MAX_CMD_LEN) 3630 if (sdp->host->max_cmd_len != SCSI_DEBUG_MAX_CMD_LEN)
3632 sdp->host->max_cmd_len = SCSI_DEBUG_MAX_CMD_LEN; 3631 sdp->host->max_cmd_len = SCSI_DEBUG_MAX_CMD_LEN;
@@ -3646,7 +3645,7 @@ static void scsi_debug_slave_destroy(struct scsi_device *sdp)
3646 (struct sdebug_dev_info *)sdp->hostdata; 3645 (struct sdebug_dev_info *)sdp->hostdata;
3647 3646
3648 if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts) 3647 if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
3649 printk(KERN_INFO "scsi_debug: slave_destroy <%u %u %u %llu>\n", 3648 pr_info("slave_destroy <%u %u %u %llu>\n",
3650 sdp->host->host_no, sdp->channel, sdp->id, sdp->lun); 3649 sdp->host->host_no, sdp->channel, sdp->id, sdp->lun);
3651 if (devip) { 3650 if (devip) {
3652 /* make this slot available for re-use */ 3651 /* make this slot available for re-use */
@@ -3897,8 +3896,7 @@ static void __init sdebug_build_parts(unsigned char *ramp,
3897 return; 3896 return;
3898 if (scsi_debug_num_parts > SDEBUG_MAX_PARTS) { 3897 if (scsi_debug_num_parts > SDEBUG_MAX_PARTS) {
3899 scsi_debug_num_parts = SDEBUG_MAX_PARTS; 3898 scsi_debug_num_parts = SDEBUG_MAX_PARTS;
3900 pr_warn("%s: reducing partitions to %d\n", __func__, 3899 pr_warn("reducing partitions to %d\n", SDEBUG_MAX_PARTS);
3901 SDEBUG_MAX_PARTS);
3902 } 3900 }
3903 num_sectors = (int)sdebug_store_sectors; 3901 num_sectors = (int)sdebug_store_sectors;
3904 sectors_per_part = (num_sectors - sdebug_sectors_per) 3902 sectors_per_part = (num_sectors - sdebug_sectors_per)
@@ -3942,14 +3940,20 @@ schedule_resp(struct scsi_cmnd *cmnd, struct sdebug_dev_info *devip,
3942 unsigned long iflags; 3940 unsigned long iflags;
3943 int k, num_in_q, qdepth, inject; 3941 int k, num_in_q, qdepth, inject;
3944 struct sdebug_queued_cmd *sqcp = NULL; 3942 struct sdebug_queued_cmd *sqcp = NULL;
3945 struct scsi_device *sdp = cmnd->device; 3943 struct scsi_device *sdp;
3944
3945 /* this should never happen */
3946 if (WARN_ON(!cmnd))
3947 return SCSI_MLQUEUE_HOST_BUSY;
3946 3948
3947 if (NULL == cmnd || NULL == devip) { 3949 if (NULL == devip) {
3948 pr_warn("%s: called with NULL cmnd or devip pointer\n", 3950 pr_warn("called devip == NULL\n");
3949 __func__);
3950 /* no particularly good error to report back */ 3951 /* no particularly good error to report back */
3951 return SCSI_MLQUEUE_HOST_BUSY; 3952 return SCSI_MLQUEUE_HOST_BUSY;
3952 } 3953 }
3954
3955 sdp = cmnd->device;
3956
3953 if ((scsi_result) && (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)) 3957 if ((scsi_result) && (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts))
3954 sdev_printk(KERN_INFO, sdp, "%s: non-zero result=0x%x\n", 3958 sdev_printk(KERN_INFO, sdp, "%s: non-zero result=0x%x\n",
3955 __func__, scsi_result); 3959 __func__, scsi_result);
@@ -4383,8 +4387,7 @@ static ssize_t fake_rw_store(struct device_driver *ddp, const char *buf,
4383 4387
4384 fake_storep = vmalloc(sz); 4388 fake_storep = vmalloc(sz);
4385 if (NULL == fake_storep) { 4389 if (NULL == fake_storep) {
4386 pr_err("%s: out of memory, 9\n", 4390 pr_err("out of memory, 9\n");
4387 __func__);
4388 return -ENOMEM; 4391 return -ENOMEM;
4389 } 4392 }
4390 memset(fake_storep, 0, sz); 4393 memset(fake_storep, 0, sz);
@@ -4784,8 +4787,7 @@ static int __init scsi_debug_init(void)
4784 atomic_set(&retired_max_queue, 0); 4787 atomic_set(&retired_max_queue, 0);
4785 4788
4786 if (scsi_debug_ndelay >= 1000000000) { 4789 if (scsi_debug_ndelay >= 1000000000) {
4787 pr_warn("%s: ndelay must be less than 1 second, ignored\n", 4790 pr_warn("ndelay must be less than 1 second, ignored\n");
4788 __func__);
4789 scsi_debug_ndelay = 0; 4791 scsi_debug_ndelay = 0;
4790 } else if (scsi_debug_ndelay > 0) 4792 } else if (scsi_debug_ndelay > 0)
4791 scsi_debug_delay = DELAY_OVERRIDDEN; 4793 scsi_debug_delay = DELAY_OVERRIDDEN;
@@ -4797,8 +4799,7 @@ static int __init scsi_debug_init(void)
4797 case 4096: 4799 case 4096:
4798 break; 4800 break;
4799 default: 4801 default:
4800 pr_err("%s: invalid sector_size %d\n", __func__, 4802 pr_err("invalid sector_size %d\n", scsi_debug_sector_size);
4801 scsi_debug_sector_size);
4802 return -EINVAL; 4803 return -EINVAL;
4803 } 4804 }
4804 4805
@@ -4811,29 +4812,28 @@ static int __init scsi_debug_init(void)
4811 break; 4812 break;
4812 4813
4813 default: 4814 default:
4814 pr_err("%s: dif must be 0, 1, 2 or 3\n", __func__); 4815 pr_err("dif must be 0, 1, 2 or 3\n");
4815 return -EINVAL; 4816 return -EINVAL;
4816 } 4817 }
4817 4818
4818 if (scsi_debug_guard > 1) { 4819 if (scsi_debug_guard > 1) {
4819 pr_err("%s: guard must be 0 or 1\n", __func__); 4820 pr_err("guard must be 0 or 1\n");
4820 return -EINVAL; 4821 return -EINVAL;
4821 } 4822 }
4822 4823
4823 if (scsi_debug_ato > 1) { 4824 if (scsi_debug_ato > 1) {
4824 pr_err("%s: ato must be 0 or 1\n", __func__); 4825 pr_err("ato must be 0 or 1\n");
4825 return -EINVAL; 4826 return -EINVAL;
4826 } 4827 }
4827 4828
4828 if (scsi_debug_physblk_exp > 15) { 4829 if (scsi_debug_physblk_exp > 15) {
4829 pr_err("%s: invalid physblk_exp %u\n", __func__, 4830 pr_err("invalid physblk_exp %u\n", scsi_debug_physblk_exp);
4830 scsi_debug_physblk_exp);
4831 return -EINVAL; 4831 return -EINVAL;
4832 } 4832 }
4833 4833
4834 if (scsi_debug_lowest_aligned > 0x3fff) { 4834 if (scsi_debug_lowest_aligned > 0x3fff) {
4835 pr_err("%s: lowest_aligned too big: %u\n", __func__, 4835 pr_err("lowest_aligned too big: %u\n",
4836 scsi_debug_lowest_aligned); 4836 scsi_debug_lowest_aligned);
4837 return -EINVAL; 4837 return -EINVAL;
4838 } 4838 }
4839 4839
@@ -4863,7 +4863,7 @@ static int __init scsi_debug_init(void)
4863 if (0 == scsi_debug_fake_rw) { 4863 if (0 == scsi_debug_fake_rw) {
4864 fake_storep = vmalloc(sz); 4864 fake_storep = vmalloc(sz);
4865 if (NULL == fake_storep) { 4865 if (NULL == fake_storep) {
4866 pr_err("%s: out of memory, 1\n", __func__); 4866 pr_err("out of memory, 1\n");
4867 return -ENOMEM; 4867 return -ENOMEM;
4868 } 4868 }
4869 memset(fake_storep, 0, sz); 4869 memset(fake_storep, 0, sz);
@@ -4877,11 +4877,10 @@ static int __init scsi_debug_init(void)
4877 dif_size = sdebug_store_sectors * sizeof(struct sd_dif_tuple); 4877 dif_size = sdebug_store_sectors * sizeof(struct sd_dif_tuple);
4878 dif_storep = vmalloc(dif_size); 4878 dif_storep = vmalloc(dif_size);
4879 4879
4880 pr_err("%s: dif_storep %u bytes @ %p\n", __func__, dif_size, 4880 pr_err("dif_storep %u bytes @ %p\n", dif_size, dif_storep);
4881 dif_storep);
4882 4881
4883 if (dif_storep == NULL) { 4882 if (dif_storep == NULL) {
4884 pr_err("%s: out of mem. (DIX)\n", __func__); 4883 pr_err("out of mem. (DIX)\n");
4885 ret = -ENOMEM; 4884 ret = -ENOMEM;
4886 goto free_vm; 4885 goto free_vm;
4887 } 4886 }
@@ -4903,18 +4902,17 @@ static int __init scsi_debug_init(void)
4903 if (scsi_debug_unmap_alignment && 4902 if (scsi_debug_unmap_alignment &&
4904 scsi_debug_unmap_granularity <= 4903 scsi_debug_unmap_granularity <=
4905 scsi_debug_unmap_alignment) { 4904 scsi_debug_unmap_alignment) {
4906 pr_err("%s: ERR: unmap_granularity <= unmap_alignment\n", 4905 pr_err("ERR: unmap_granularity <= unmap_alignment\n");
4907 __func__);
4908 return -EINVAL; 4906 return -EINVAL;
4909 } 4907 }
4910 4908
4911 map_size = lba_to_map_index(sdebug_store_sectors - 1) + 1; 4909 map_size = lba_to_map_index(sdebug_store_sectors - 1) + 1;
4912 map_storep = vmalloc(BITS_TO_LONGS(map_size) * sizeof(long)); 4910 map_storep = vmalloc(BITS_TO_LONGS(map_size) * sizeof(long));
4913 4911
4914 pr_info("%s: %lu provisioning blocks\n", __func__, map_size); 4912 pr_info("%lu provisioning blocks\n", map_size);
4915 4913
4916 if (map_storep == NULL) { 4914 if (map_storep == NULL) {
4917 pr_err("%s: out of mem. (MAP)\n", __func__); 4915 pr_err("out of mem. (MAP)\n");
4918 ret = -ENOMEM; 4916 ret = -ENOMEM;
4919 goto free_vm; 4917 goto free_vm;
4920 } 4918 }
@@ -4928,18 +4926,18 @@ static int __init scsi_debug_init(void)
4928 4926
4929 pseudo_primary = root_device_register("pseudo_0"); 4927 pseudo_primary = root_device_register("pseudo_0");
4930 if (IS_ERR(pseudo_primary)) { 4928 if (IS_ERR(pseudo_primary)) {
4931 pr_warn("%s: root_device_register() error\n", __func__); 4929 pr_warn("root_device_register() error\n");
4932 ret = PTR_ERR(pseudo_primary); 4930 ret = PTR_ERR(pseudo_primary);
4933 goto free_vm; 4931 goto free_vm;
4934 } 4932 }
4935 ret = bus_register(&pseudo_lld_bus); 4933 ret = bus_register(&pseudo_lld_bus);
4936 if (ret < 0) { 4934 if (ret < 0) {
4937 pr_warn("%s: bus_register error: %d\n", __func__, ret); 4935 pr_warn("bus_register error: %d\n", ret);
4938 goto dev_unreg; 4936 goto dev_unreg;
4939 } 4937 }
4940 ret = driver_register(&sdebug_driverfs_driver); 4938 ret = driver_register(&sdebug_driverfs_driver);
4941 if (ret < 0) { 4939 if (ret < 0) {
4942 pr_warn("%s: driver_register error: %d\n", __func__, ret); 4940 pr_warn("driver_register error: %d\n", ret);
4943 goto bus_unreg; 4941 goto bus_unreg;
4944 } 4942 }
4945 4943
@@ -4948,16 +4946,14 @@ static int __init scsi_debug_init(void)
4948 4946
4949 for (k = 0; k < host_to_add; k++) { 4947 for (k = 0; k < host_to_add; k++) {
4950 if (sdebug_add_adapter()) { 4948 if (sdebug_add_adapter()) {
4951 pr_err("%s: sdebug_add_adapter failed k=%d\n", 4949 pr_err("sdebug_add_adapter failed k=%d\n", k);
4952 __func__, k);
4953 break; 4950 break;
4954 } 4951 }
4955 } 4952 }
4956 4953
4957 if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts) { 4954 if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
4958 pr_info("%s: built %d host(s)\n", __func__, 4955 pr_info("built %d host(s)\n", scsi_debug_add_host);
4959 scsi_debug_add_host); 4956
4960 }
4961 return 0; 4957 return 0;
4962 4958
4963bus_unreg: 4959bus_unreg:
@@ -4965,10 +4961,8 @@ bus_unreg:
4965dev_unreg: 4961dev_unreg:
4966 root_device_unregister(pseudo_primary); 4962 root_device_unregister(pseudo_primary);
4967free_vm: 4963free_vm:
4968 if (map_storep) 4964 vfree(map_storep);
4969 vfree(map_storep); 4965 vfree(dif_storep);
4970 if (dif_storep)
4971 vfree(dif_storep);
4972 vfree(fake_storep); 4966 vfree(fake_storep);
4973 4967
4974 return ret; 4968 return ret;
@@ -4986,9 +4980,7 @@ static void __exit scsi_debug_exit(void)
4986 bus_unregister(&pseudo_lld_bus); 4980 bus_unregister(&pseudo_lld_bus);
4987 root_device_unregister(pseudo_primary); 4981 root_device_unregister(pseudo_primary);
4988 4982
4989 if (dif_storep) 4983 vfree(dif_storep);
4990 vfree(dif_storep);
4991
4992 vfree(fake_storep); 4984 vfree(fake_storep);
4993} 4985}
4994 4986
@@ -5012,8 +5004,7 @@ static int sdebug_add_adapter(void)
5012 5004
5013 sdbg_host = kzalloc(sizeof(*sdbg_host),GFP_KERNEL); 5005 sdbg_host = kzalloc(sizeof(*sdbg_host),GFP_KERNEL);
5014 if (NULL == sdbg_host) { 5006 if (NULL == sdbg_host) {
5015 printk(KERN_ERR "%s: out of memory at line %d\n", 5007 pr_err("out of memory at line %d\n", __LINE__);
5016 __func__, __LINE__);
5017 return -ENOMEM; 5008 return -ENOMEM;
5018 } 5009 }
5019 5010
@@ -5023,8 +5014,7 @@ static int sdebug_add_adapter(void)
5023 for (k = 0; k < devs_per_host; k++) { 5014 for (k = 0; k < devs_per_host; k++) {
5024 sdbg_devinfo = sdebug_device_create(sdbg_host, GFP_KERNEL); 5015 sdbg_devinfo = sdebug_device_create(sdbg_host, GFP_KERNEL);
5025 if (!sdbg_devinfo) { 5016 if (!sdbg_devinfo) {
5026 printk(KERN_ERR "%s: out of memory at line %d\n", 5017 pr_err("out of memory at line %d\n", __LINE__);
5027 __func__, __LINE__);
5028 error = -ENOMEM; 5018 error = -ENOMEM;
5029 goto clean; 5019 goto clean;
5030 } 5020 }
@@ -5178,7 +5168,7 @@ scsi_debug_queuecommand(struct scsi_cmnd *scp)
5178 } 5168 }
5179 sdev_printk(KERN_INFO, sdp, "%s: cmd %s\n", my_name, b); 5169 sdev_printk(KERN_INFO, sdp, "%s: cmd %s\n", my_name, b);
5180 } 5170 }
5181 has_wlun_rl = (sdp->lun == SAM2_WLUN_REPORT_LUNS); 5171 has_wlun_rl = (sdp->lun == SCSI_W_LUN_REPORT_LUNS);
5182 if ((sdp->lun >= scsi_debug_max_luns) && !has_wlun_rl) 5172 if ((sdp->lun >= scsi_debug_max_luns) && !has_wlun_rl)
5183 return schedule_resp(scp, NULL, errsts_no_connect, 0); 5173 return schedule_resp(scp, NULL, errsts_no_connect, 0);
5184 5174
@@ -5338,7 +5328,7 @@ static int sdebug_driver_probe(struct device * dev)
5338 sdebug_driver_template.use_clustering = ENABLE_CLUSTERING; 5328 sdebug_driver_template.use_clustering = ENABLE_CLUSTERING;
5339 hpnt = scsi_host_alloc(&sdebug_driver_template, sizeof(sdbg_host)); 5329 hpnt = scsi_host_alloc(&sdebug_driver_template, sizeof(sdbg_host));
5340 if (NULL == hpnt) { 5330 if (NULL == hpnt) {
5341 pr_err("%s: scsi_host_alloc failed\n", __func__); 5331 pr_err("scsi_host_alloc failed\n");
5342 error = -ENODEV; 5332 error = -ENODEV;
5343 return error; 5333 return error;
5344 } 5334 }
@@ -5349,7 +5339,8 @@ static int sdebug_driver_probe(struct device * dev)
5349 hpnt->max_id = scsi_debug_num_tgts + 1; 5339 hpnt->max_id = scsi_debug_num_tgts + 1;
5350 else 5340 else
5351 hpnt->max_id = scsi_debug_num_tgts; 5341 hpnt->max_id = scsi_debug_num_tgts;
5352 hpnt->max_lun = SAM2_WLUN_REPORT_LUNS; /* = scsi_debug_max_luns; */ 5342 /* = scsi_debug_max_luns; */
5343 hpnt->max_lun = SCSI_W_LUN_REPORT_LUNS + 1;
5353 5344
5354 host_prot = 0; 5345 host_prot = 0;
5355 5346
@@ -5381,7 +5372,7 @@ static int sdebug_driver_probe(struct device * dev)
5381 5372
5382 scsi_host_set_prot(hpnt, host_prot); 5373 scsi_host_set_prot(hpnt, host_prot);
5383 5374
5384 printk(KERN_INFO "scsi_debug: host protection%s%s%s%s%s%s%s\n", 5375 pr_info("host protection%s%s%s%s%s%s%s\n",
5385 (host_prot & SHOST_DIF_TYPE1_PROTECTION) ? " DIF1" : "", 5376 (host_prot & SHOST_DIF_TYPE1_PROTECTION) ? " DIF1" : "",
5386 (host_prot & SHOST_DIF_TYPE2_PROTECTION) ? " DIF2" : "", 5377 (host_prot & SHOST_DIF_TYPE2_PROTECTION) ? " DIF2" : "",
5387 (host_prot & SHOST_DIF_TYPE3_PROTECTION) ? " DIF3" : "", 5378 (host_prot & SHOST_DIF_TYPE3_PROTECTION) ? " DIF3" : "",
@@ -5409,7 +5400,7 @@ static int sdebug_driver_probe(struct device * dev)
5409 5400
5410 error = scsi_add_host(hpnt, &sdbg_host->dev); 5401 error = scsi_add_host(hpnt, &sdbg_host->dev);
5411 if (error) { 5402 if (error) {
5412 printk(KERN_ERR "%s: scsi_add_host failed\n", __func__); 5403 pr_err("scsi_add_host failed\n");
5413 error = -ENODEV; 5404 error = -ENODEV;
5414 scsi_host_put(hpnt); 5405 scsi_host_put(hpnt);
5415 } else 5406 } else
@@ -5426,8 +5417,7 @@ static int sdebug_driver_remove(struct device * dev)
5426 sdbg_host = to_sdebug_host(dev); 5417 sdbg_host = to_sdebug_host(dev);
5427 5418
5428 if (!sdbg_host) { 5419 if (!sdbg_host) {
5429 printk(KERN_ERR "%s: Unable to locate host info\n", 5420 pr_err("Unable to locate host info\n");
5430 __func__);
5431 return -ENODEV; 5421 return -ENODEV;
5432 } 5422 }
5433 5423
diff --git a/drivers/scsi/scsi_dh.c b/drivers/scsi/scsi_dh.c
new file mode 100644
index 000000000000..edb044a7b56d
--- /dev/null
+++ b/drivers/scsi/scsi_dh.c
@@ -0,0 +1,437 @@
1/*
2 * SCSI device handler infrastruture.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License as published by the
6 * Free Software Foundation; either version 2 of the License, or (at your
7 * option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 *
18 * Copyright IBM Corporation, 2007
19 * Authors:
20 * Chandra Seetharaman <sekharan@us.ibm.com>
21 * Mike Anderson <andmike@linux.vnet.ibm.com>
22 */
23
24#include <linux/slab.h>
25#include <linux/module.h>
26#include <scsi/scsi_dh.h>
27#include "scsi_priv.h"
28
29static DEFINE_SPINLOCK(list_lock);
30static LIST_HEAD(scsi_dh_list);
31
32struct scsi_dh_blist {
33 const char *vendor;
34 const char *model;
35 const char *driver;
36};
37
38static const struct scsi_dh_blist scsi_dh_blist[] = {
39 {"DGC", "RAID", "clariion" },
40 {"DGC", "DISK", "clariion" },
41 {"DGC", "VRAID", "clariion" },
42
43 {"COMPAQ", "MSA1000 VOLUME", "hp_sw" },
44 {"COMPAQ", "HSV110", "hp_sw" },
45 {"HP", "HSV100", "hp_sw"},
46 {"DEC", "HSG80", "hp_sw"},
47
48 {"IBM", "1722", "rdac", },
49 {"IBM", "1724", "rdac", },
50 {"IBM", "1726", "rdac", },
51 {"IBM", "1742", "rdac", },
52 {"IBM", "1745", "rdac", },
53 {"IBM", "1746", "rdac", },
54 {"IBM", "1813", "rdac", },
55 {"IBM", "1814", "rdac", },
56 {"IBM", "1815", "rdac", },
57 {"IBM", "1818", "rdac", },
58 {"IBM", "3526", "rdac", },
59 {"SGI", "TP9", "rdac", },
60 {"SGI", "IS", "rdac", },
61 {"STK", "OPENstorage D280", "rdac", },
62 {"STK", "FLEXLINE 380", "rdac", },
63 {"SUN", "CSM", "rdac", },
64 {"SUN", "LCSM100", "rdac", },
65 {"SUN", "STK6580_6780", "rdac", },
66 {"SUN", "SUN_6180", "rdac", },
67 {"SUN", "ArrayStorage", "rdac", },
68 {"DELL", "MD3", "rdac", },
69 {"NETAPP", "INF-01-00", "rdac", },
70 {"LSI", "INF-01-00", "rdac", },
71 {"ENGENIO", "INF-01-00", "rdac", },
72 {NULL, NULL, NULL },
73};
74
75static const char *
76scsi_dh_find_driver(struct scsi_device *sdev)
77{
78 const struct scsi_dh_blist *b;
79
80 if (scsi_device_tpgs(sdev))
81 return "alua";
82
83 for (b = scsi_dh_blist; b->vendor; b++) {
84 if (!strncmp(sdev->vendor, b->vendor, strlen(b->vendor)) &&
85 !strncmp(sdev->model, b->model, strlen(b->model))) {
86 return b->driver;
87 }
88 }
89 return NULL;
90}
91
92
93static struct scsi_device_handler *__scsi_dh_lookup(const char *name)
94{
95 struct scsi_device_handler *tmp, *found = NULL;
96
97 spin_lock(&list_lock);
98 list_for_each_entry(tmp, &scsi_dh_list, list) {
99 if (!strncmp(tmp->name, name, strlen(tmp->name))) {
100 found = tmp;
101 break;
102 }
103 }
104 spin_unlock(&list_lock);
105 return found;
106}
107
108static struct scsi_device_handler *scsi_dh_lookup(const char *name)
109{
110 struct scsi_device_handler *dh;
111
112 dh = __scsi_dh_lookup(name);
113 if (!dh) {
114 request_module(name);
115 dh = __scsi_dh_lookup(name);
116 }
117
118 return dh;
119}
120
121/*
122 * scsi_dh_handler_attach - Attach a device handler to a device
123 * @sdev - SCSI device the device handler should attach to
124 * @scsi_dh - The device handler to attach
125 */
126static int scsi_dh_handler_attach(struct scsi_device *sdev,
127 struct scsi_device_handler *scsi_dh)
128{
129 int error;
130
131 if (!try_module_get(scsi_dh->module))
132 return -EINVAL;
133
134 error = scsi_dh->attach(sdev);
135 if (error) {
136 sdev_printk(KERN_ERR, sdev, "%s: Attach failed (%d)\n",
137 scsi_dh->name, error);
138 module_put(scsi_dh->module);
139 } else
140 sdev->handler = scsi_dh;
141
142 return error;
143}
144
145/*
146 * scsi_dh_handler_detach - Detach a device handler from a device
147 * @sdev - SCSI device the device handler should be detached from
148 */
149static void scsi_dh_handler_detach(struct scsi_device *sdev)
150{
151 sdev->handler->detach(sdev);
152 sdev_printk(KERN_NOTICE, sdev, "%s: Detached\n", sdev->handler->name);
153 module_put(sdev->handler->module);
154}
155
156/*
157 * Functions for sysfs attribute 'dh_state'
158 */
159static ssize_t
160store_dh_state(struct device *dev, struct device_attribute *attr,
161 const char *buf, size_t count)
162{
163 struct scsi_device *sdev = to_scsi_device(dev);
164 struct scsi_device_handler *scsi_dh;
165 int err = -EINVAL;
166
167 if (sdev->sdev_state == SDEV_CANCEL ||
168 sdev->sdev_state == SDEV_DEL)
169 return -ENODEV;
170
171 if (!sdev->handler) {
172 /*
173 * Attach to a device handler
174 */
175 scsi_dh = scsi_dh_lookup(buf);
176 if (!scsi_dh)
177 return err;
178 err = scsi_dh_handler_attach(sdev, scsi_dh);
179 } else {
180 if (!strncmp(buf, "detach", 6)) {
181 /*
182 * Detach from a device handler
183 */
184 sdev_printk(KERN_WARNING, sdev,
185 "can't detach handler %s.\n",
186 sdev->handler->name);
187 err = -EINVAL;
188 } else if (!strncmp(buf, "activate", 8)) {
189 /*
190 * Activate a device handler
191 */
192 if (sdev->handler->activate)
193 err = sdev->handler->activate(sdev, NULL, NULL);
194 else
195 err = 0;
196 }
197 }
198
199 return err<0?err:count;
200}
201
202static ssize_t
203show_dh_state(struct device *dev, struct device_attribute *attr, char *buf)
204{
205 struct scsi_device *sdev = to_scsi_device(dev);
206
207 if (!sdev->handler)
208 return snprintf(buf, 20, "detached\n");
209
210 return snprintf(buf, 20, "%s\n", sdev->handler->name);
211}
212
213static struct device_attribute scsi_dh_state_attr =
214 __ATTR(dh_state, S_IRUGO | S_IWUSR, show_dh_state,
215 store_dh_state);
216
217int scsi_dh_add_device(struct scsi_device *sdev)
218{
219 struct scsi_device_handler *devinfo = NULL;
220 const char *drv;
221 int err;
222
223 err = device_create_file(&sdev->sdev_gendev, &scsi_dh_state_attr);
224 if (err)
225 return err;
226
227 drv = scsi_dh_find_driver(sdev);
228 if (drv)
229 devinfo = scsi_dh_lookup(drv);
230 if (devinfo)
231 err = scsi_dh_handler_attach(sdev, devinfo);
232 return err;
233}
234
235void scsi_dh_remove_device(struct scsi_device *sdev)
236{
237 if (sdev->handler)
238 scsi_dh_handler_detach(sdev);
239 device_remove_file(&sdev->sdev_gendev, &scsi_dh_state_attr);
240}
241
242/*
243 * scsi_register_device_handler - register a device handler personality
244 * module.
245 * @scsi_dh - device handler to be registered.
246 *
247 * Returns 0 on success, -EBUSY if handler already registered.
248 */
249int scsi_register_device_handler(struct scsi_device_handler *scsi_dh)
250{
251 if (__scsi_dh_lookup(scsi_dh->name))
252 return -EBUSY;
253
254 if (!scsi_dh->attach || !scsi_dh->detach)
255 return -EINVAL;
256
257 spin_lock(&list_lock);
258 list_add(&scsi_dh->list, &scsi_dh_list);
259 spin_unlock(&list_lock);
260
261 printk(KERN_INFO "%s: device handler registered\n", scsi_dh->name);
262
263 return SCSI_DH_OK;
264}
265EXPORT_SYMBOL_GPL(scsi_register_device_handler);
266
267/*
268 * scsi_unregister_device_handler - register a device handler personality
269 * module.
270 * @scsi_dh - device handler to be unregistered.
271 *
272 * Returns 0 on success, -ENODEV if handler not registered.
273 */
274int scsi_unregister_device_handler(struct scsi_device_handler *scsi_dh)
275{
276 if (!__scsi_dh_lookup(scsi_dh->name))
277 return -ENODEV;
278
279 spin_lock(&list_lock);
280 list_del(&scsi_dh->list);
281 spin_unlock(&list_lock);
282 printk(KERN_INFO "%s: device handler unregistered\n", scsi_dh->name);
283
284 return SCSI_DH_OK;
285}
286EXPORT_SYMBOL_GPL(scsi_unregister_device_handler);
287
288static struct scsi_device *get_sdev_from_queue(struct request_queue *q)
289{
290 struct scsi_device *sdev;
291 unsigned long flags;
292
293 spin_lock_irqsave(q->queue_lock, flags);
294 sdev = q->queuedata;
295 if (!sdev || !get_device(&sdev->sdev_gendev))
296 sdev = NULL;
297 spin_unlock_irqrestore(q->queue_lock, flags);
298
299 return sdev;
300}
301
302/*
303 * scsi_dh_activate - activate the path associated with the scsi_device
304 * corresponding to the given request queue.
305 * Returns immediately without waiting for activation to be completed.
306 * @q - Request queue that is associated with the scsi_device to be
307 * activated.
308 * @fn - Function to be called upon completion of the activation.
309 * Function fn is called with data (below) and the error code.
310 * Function fn may be called from the same calling context. So,
311 * do not hold the lock in the caller which may be needed in fn.
312 * @data - data passed to the function fn upon completion.
313 *
314 */
315int scsi_dh_activate(struct request_queue *q, activate_complete fn, void *data)
316{
317 struct scsi_device *sdev;
318 int err = SCSI_DH_NOSYS;
319
320 sdev = get_sdev_from_queue(q);
321 if (!sdev) {
322 if (fn)
323 fn(data, err);
324 return err;
325 }
326
327 if (!sdev->handler)
328 goto out_fn;
329 err = SCSI_DH_NOTCONN;
330 if (sdev->sdev_state == SDEV_CANCEL ||
331 sdev->sdev_state == SDEV_DEL)
332 goto out_fn;
333
334 err = SCSI_DH_DEV_OFFLINED;
335 if (sdev->sdev_state == SDEV_OFFLINE)
336 goto out_fn;
337
338 if (sdev->handler->activate)
339 err = sdev->handler->activate(sdev, fn, data);
340
341out_put_device:
342 put_device(&sdev->sdev_gendev);
343 return err;
344
345out_fn:
346 if (fn)
347 fn(data, err);
348 goto out_put_device;
349}
350EXPORT_SYMBOL_GPL(scsi_dh_activate);
351
352/*
353 * scsi_dh_set_params - set the parameters for the device as per the
354 * string specified in params.
355 * @q - Request queue that is associated with the scsi_device for
356 * which the parameters to be set.
357 * @params - parameters in the following format
358 * "no_of_params\0param1\0param2\0param3\0...\0"
359 * for example, string for 2 parameters with value 10 and 21
360 * is specified as "2\010\021\0".
361 */
362int scsi_dh_set_params(struct request_queue *q, const char *params)
363{
364 struct scsi_device *sdev;
365 int err = -SCSI_DH_NOSYS;
366
367 sdev = get_sdev_from_queue(q);
368 if (!sdev)
369 return err;
370
371 if (sdev->handler && sdev->handler->set_params)
372 err = sdev->handler->set_params(sdev, params);
373 put_device(&sdev->sdev_gendev);
374 return err;
375}
376EXPORT_SYMBOL_GPL(scsi_dh_set_params);
377
378/*
379 * scsi_dh_attach - Attach device handler
380 * @q - Request queue that is associated with the scsi_device
381 * the handler should be attached to
382 * @name - name of the handler to attach
383 */
384int scsi_dh_attach(struct request_queue *q, const char *name)
385{
386 struct scsi_device *sdev;
387 struct scsi_device_handler *scsi_dh;
388 int err = 0;
389
390 sdev = get_sdev_from_queue(q);
391 if (!sdev)
392 return -ENODEV;
393
394 scsi_dh = scsi_dh_lookup(name);
395 if (!scsi_dh) {
396 err = -EINVAL;
397 goto out_put_device;
398 }
399
400 if (sdev->handler) {
401 if (sdev->handler != scsi_dh)
402 err = -EBUSY;
403 goto out_put_device;
404 }
405
406 err = scsi_dh_handler_attach(sdev, scsi_dh);
407
408out_put_device:
409 put_device(&sdev->sdev_gendev);
410 return err;
411}
412EXPORT_SYMBOL_GPL(scsi_dh_attach);
413
414/*
415 * scsi_dh_attached_handler_name - Get attached device handler's name
416 * @q - Request queue that is associated with the scsi_device
417 * that may have a device handler attached
418 * @gfp - the GFP mask used in the kmalloc() call when allocating memory
419 *
420 * Returns name of attached handler, NULL if no handler is attached.
421 * Caller must take care to free the returned string.
422 */
423const char *scsi_dh_attached_handler_name(struct request_queue *q, gfp_t gfp)
424{
425 struct scsi_device *sdev;
426 const char *handler_name = NULL;
427
428 sdev = get_sdev_from_queue(q);
429 if (!sdev)
430 return NULL;
431
432 if (sdev->handler)
433 handler_name = kstrdup(sdev->handler->name, gfp);
434 put_device(&sdev->sdev_gendev);
435 return handler_name;
436}
437EXPORT_SYMBOL_GPL(scsi_dh_attached_handler_name);
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index afd34a608fe7..b616a6bef44a 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -36,6 +36,7 @@
36#include <scsi/scsi_transport.h> 36#include <scsi/scsi_transport.h>
37#include <scsi/scsi_host.h> 37#include <scsi/scsi_host.h>
38#include <scsi/scsi_ioctl.h> 38#include <scsi/scsi_ioctl.h>
39#include <scsi/scsi_dh.h>
39#include <scsi/sg.h> 40#include <scsi/sg.h>
40 41
41#include "scsi_priv.h" 42#include "scsi_priv.h"
@@ -463,11 +464,10 @@ static int scsi_check_sense(struct scsi_cmnd *scmd)
463 if (scsi_sense_is_deferred(&sshdr)) 464 if (scsi_sense_is_deferred(&sshdr))
464 return NEEDS_RETRY; 465 return NEEDS_RETRY;
465 466
466 if (sdev->scsi_dh_data && sdev->scsi_dh_data->scsi_dh && 467 if (sdev->handler && sdev->handler->check_sense) {
467 sdev->scsi_dh_data->scsi_dh->check_sense) {
468 int rc; 468 int rc;
469 469
470 rc = sdev->scsi_dh_data->scsi_dh->check_sense(sdev, &sshdr); 470 rc = sdev->handler->check_sense(sdev, &sshdr);
471 if (rc != SCSI_RETURN_NOT_HANDLED) 471 if (rc != SCSI_RETURN_NOT_HANDLED)
472 return rc; 472 return rc;
473 /* handler does not care. Drop down to default handling */ 473 /* handler does not care. Drop down to default handling */
@@ -2178,8 +2178,17 @@ int scsi_error_handler(void *data)
2178 * We never actually get interrupted because kthread_run 2178 * We never actually get interrupted because kthread_run
2179 * disables signal delivery for the created thread. 2179 * disables signal delivery for the created thread.
2180 */ 2180 */
2181 while (!kthread_should_stop()) { 2181 while (true) {
2182 /*
2183 * The sequence in kthread_stop() sets the stop flag first
2184 * then wakes the process. To avoid missed wakeups, the task
2185 * should always be in a non running state before the stop
2186 * flag is checked
2187 */
2182 set_current_state(TASK_INTERRUPTIBLE); 2188 set_current_state(TASK_INTERRUPTIBLE);
2189 if (kthread_should_stop())
2190 break;
2191
2183 if ((shost->host_failed == 0 && shost->host_eh_scheduled == 0) || 2192 if ((shost->host_failed == 0 && shost->host_eh_scheduled == 0) ||
2184 shost->host_failed != atomic_read(&shost->host_busy)) { 2193 shost->host_failed != atomic_read(&shost->host_busy)) {
2185 SCSI_LOG_ERROR_RECOVERY(1, 2194 SCSI_LOG_ERROR_RECOVERY(1,
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 882864f5cbae..cbfc5990052b 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -31,6 +31,7 @@
31#include <scsi/scsi_driver.h> 31#include <scsi/scsi_driver.h>
32#include <scsi/scsi_eh.h> 32#include <scsi/scsi_eh.h>
33#include <scsi/scsi_host.h> 33#include <scsi/scsi_host.h>
34#include <scsi/scsi_dh.h>
34 35
35#include <trace/events/scsi.h> 36#include <trace/events/scsi.h>
36 37
@@ -1248,9 +1249,8 @@ static int scsi_setup_fs_cmnd(struct scsi_device *sdev, struct request *req)
1248{ 1249{
1249 struct scsi_cmnd *cmd = req->special; 1250 struct scsi_cmnd *cmd = req->special;
1250 1251
1251 if (unlikely(sdev->scsi_dh_data && sdev->scsi_dh_data->scsi_dh 1252 if (unlikely(sdev->handler && sdev->handler->prep_fn)) {
1252 && sdev->scsi_dh_data->scsi_dh->prep_fn)) { 1253 int ret = sdev->handler->prep_fn(sdev, req);
1253 int ret = sdev->scsi_dh_data->scsi_dh->prep_fn(sdev, req);
1254 if (ret != BLKPREP_OK) 1254 if (ret != BLKPREP_OK)
1255 return ret; 1255 return ret;
1256 } 1256 }
diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h
index e3902fc66278..644bb7339b55 100644
--- a/drivers/scsi/scsi_priv.h
+++ b/drivers/scsi/scsi_priv.h
@@ -170,6 +170,15 @@ static inline void scsi_autopm_put_host(struct Scsi_Host *h) {}
170extern struct async_domain scsi_sd_pm_domain; 170extern struct async_domain scsi_sd_pm_domain;
171extern struct async_domain scsi_sd_probe_domain; 171extern struct async_domain scsi_sd_probe_domain;
172 172
173/* scsi_dh.c */
174#ifdef CONFIG_SCSI_DH
175int scsi_dh_add_device(struct scsi_device *sdev);
176void scsi_dh_remove_device(struct scsi_device *sdev);
177#else
178static inline int scsi_dh_add_device(struct scsi_device *sdev) { return 0; }
179static inline void scsi_dh_remove_device(struct scsi_device *sdev) { }
180#endif
181
173/* 182/*
174 * internal scsi timeout functions: for use by mid-layer and transport 183 * internal scsi timeout functions: for use by mid-layer and transport
175 * classes. 184 * classes.
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 9ad41168d26d..b333389f248f 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -1030,11 +1030,20 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev)
1030 "failed to add device: %d\n", error); 1030 "failed to add device: %d\n", error);
1031 return error; 1031 return error;
1032 } 1032 }
1033
1034 error = scsi_dh_add_device(sdev);
1035 if (error) {
1036 sdev_printk(KERN_INFO, sdev,
1037 "failed to add device handler: %d\n", error);
1038 return error;
1039 }
1040
1033 device_enable_async_suspend(&sdev->sdev_dev); 1041 device_enable_async_suspend(&sdev->sdev_dev);
1034 error = device_add(&sdev->sdev_dev); 1042 error = device_add(&sdev->sdev_dev);
1035 if (error) { 1043 if (error) {
1036 sdev_printk(KERN_INFO, sdev, 1044 sdev_printk(KERN_INFO, sdev,
1037 "failed to add class device: %d\n", error); 1045 "failed to add class device: %d\n", error);
1046 scsi_dh_remove_device(sdev);
1038 device_del(&sdev->sdev_gendev); 1047 device_del(&sdev->sdev_gendev);
1039 return error; 1048 return error;
1040 } 1049 }
@@ -1074,6 +1083,7 @@ void __scsi_remove_device(struct scsi_device *sdev)
1074 bsg_unregister_queue(sdev->request_queue); 1083 bsg_unregister_queue(sdev->request_queue);
1075 device_unregister(&sdev->sdev_dev); 1084 device_unregister(&sdev->sdev_dev);
1076 transport_remove_device(dev); 1085 transport_remove_device(dev);
1086 scsi_dh_remove_device(sdev);
1077 device_del(dev); 1087 device_del(dev);
1078 } else 1088 } else
1079 put_device(&sdev->sdev_dev); 1089 put_device(&sdev->sdev_dev);
diff --git a/drivers/scsi/scsi_transport_sas.c b/drivers/scsi/scsi_transport_sas.c
index 9a058194b9bd..30d26e345dcc 100644
--- a/drivers/scsi/scsi_transport_sas.c
+++ b/drivers/scsi/scsi_transport_sas.c
@@ -1222,13 +1222,6 @@ show_sas_rphy_enclosure_identifier(struct device *dev,
1222 u64 identifier; 1222 u64 identifier;
1223 int error; 1223 int error;
1224 1224
1225 /*
1226 * Only devices behind an expander are supported, because the
1227 * enclosure identifier is a SMP feature.
1228 */
1229 if (scsi_is_sas_phy_local(phy))
1230 return -EINVAL;
1231
1232 error = i->f->get_enclosure_identifier(rphy, &identifier); 1225 error = i->f->get_enclosure_identifier(rphy, &identifier);
1233 if (error) 1226 if (error)
1234 return error; 1227 return error;
@@ -1248,9 +1241,6 @@ show_sas_rphy_bay_identifier(struct device *dev,
1248 struct sas_internal *i = to_sas_internal(shost->transportt); 1241 struct sas_internal *i = to_sas_internal(shost->transportt);
1249 int val; 1242 int val;
1250 1243
1251 if (scsi_is_sas_phy_local(phy))
1252 return -EINVAL;
1253
1254 val = i->f->get_bay_identifier(rphy); 1244 val = i->f->get_bay_identifier(rphy);
1255 if (val < 0) 1245 if (val < 0)
1256 return val; 1246 return val;
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-24 01:36:32 -0500