summaryrefslogtreecommitdiffstats
path: root/drivers/s390
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/cio/blacklist.c23
-rw-r--r--drivers/s390/cio/chsc.c63
-rw-r--r--drivers/s390/cio/cio.c84
-rw-r--r--drivers/s390/cio/cio.h11
-rw-r--r--drivers/s390/cio/cmf.c8
-rw-r--r--drivers/s390/cio/css.c69
-rw-r--r--drivers/s390/cio/css.h13
-rw-r--r--drivers/s390/cio/device.c17
-rw-r--r--drivers/s390/cio/device.h1
-rw-r--r--drivers/s390/cio/device_fsm.c18
-rw-r--r--drivers/s390/cio/device_id.c6
-rw-r--r--drivers/s390/cio/device_ops.c4
-rw-r--r--drivers/s390/cio/device_pgid.c13
-rw-r--r--drivers/s390/cio/device_status.c8
-rw-r--r--drivers/s390/cio/ioasm.h55
-rw-r--r--drivers/s390/cio/qdio.c107
-rw-r--r--drivers/s390/cio/qdio.h26
-rw-r--r--drivers/s390/cio/schid.h25
18 files changed, 313 insertions, 238 deletions
diff --git a/drivers/s390/cio/blacklist.c b/drivers/s390/cio/blacklist.c
index a1c52a682191..a4b03031ff50 100644
--- a/drivers/s390/cio/blacklist.c
+++ b/drivers/s390/cio/blacklist.c
@@ -35,7 +35,7 @@
*/
/* 65536 bits to indicate if a devno is blacklisted or not */
-#define __BL_DEV_WORDS ((__MAX_SUBCHANNELS + (8*sizeof(long) - 1)) / \
+#define __BL_DEV_WORDS ((__MAX_SUBCHANNEL + (8*sizeof(long) - 1)) / \
(8*sizeof(long)))
static unsigned long bl_dev[__BL_DEV_WORDS];
typedef enum {add, free} range_action;
@@ -50,7 +50,7 @@ blacklist_range (range_action action, unsigned int from, unsigned int to)
if (!to)
to = from;
- if (from > to || to > __MAX_SUBCHANNELS) {
+ if (from > to || to > __MAX_SUBCHANNEL) {
printk (KERN_WARNING "Invalid blacklist range "
"0x%04x to 0x%04x, skipping\n", from, to);
return;
@@ -143,7 +143,7 @@ blacklist_parse_parameters (char *str, range_action action)
if (strncmp(str,"all,",4) == 0 || strcmp(str,"all") == 0 ||
strncmp(str,"all\n",4) == 0 || strncmp(str,"all ",4) == 0) {
from = 0;
- to = __MAX_SUBCHANNELS;
+ to = __MAX_SUBCHANNEL;
str += 3;
} else {
int rc;
@@ -226,20 +226,21 @@ is_blacklisted (int devno)
static inline void
s390_redo_validation (void)
{
- unsigned int irq;
+ struct subchannel_id schid;
CIO_TRACE_EVENT (0, "redoval");
- for (irq = 0; irq < __MAX_SUBCHANNELS; irq++) {
+ init_subchannel_id(&schid);
+ do {
int ret;
struct subchannel *sch;
- sch = get_subchannel_by_schid(irq);
+ sch = get_subchannel_by_schid(schid);
if (sch) {
/* Already known. */
put_device(&sch->dev);
continue;
}
- ret = css_probe_device(irq);
+ ret = css_probe_device(schid);
if (ret == -ENXIO)
break; /* We're through. */
if (ret == -ENOMEM)
@@ -248,7 +249,7 @@ s390_redo_validation (void)
* panic.
*/
break;
- }
+ } while (schid.sch_no++ < __MAX_SUBCHANNEL);
}
/*
@@ -289,12 +290,12 @@ static int cio_ignore_read (char *page, char **start, off_t off,
len = 0;
for (devno = off; /* abuse the page variable
* as counter, see fs/proc/generic.c */
- devno < __MAX_SUBCHANNELS && len + entry_size < count; devno++) {
+ devno < __MAX_SUBCHANNEL && len + entry_size < count; devno++) {
if (!test_bit(devno, bl_dev))
continue;
len += sprintf(page + len, "0.0.%04lx", devno);
if (test_bit(devno + 1, bl_dev)) { /* print range */
- while (++devno < __MAX_SUBCHANNELS)
+ while (++devno < __MAX_SUBCHANNEL)
if (!test_bit(devno, bl_dev))
break;
len += sprintf(page + len, "-0.0.%04lx", --devno);
@@ -302,7 +303,7 @@ static int cio_ignore_read (char *page, char **start, off_t off,
len += sprintf(page + len, "\n");
}
- if (devno < __MAX_SUBCHANNELS)
+ if (devno < __MAX_SUBCHANNEL)
*eof = 1;
*start = (char *) (devno - off); /* number of checked entries */
return len;
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index fa3c23b80e3a..aff5d149b729 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -104,8 +104,8 @@ chsc_get_sch_desc_irq(struct subchannel *sch, void *page)
.code = 0x0004,
};
- ssd_area->f_sch = sch->irq;
- ssd_area->l_sch = sch->irq;
+ ssd_area->f_sch = sch->schid.sch_no;
+ ssd_area->l_sch = sch->schid.sch_no;
ccode = chsc(ssd_area);
if (ccode > 0) {
@@ -147,7 +147,8 @@ chsc_get_sch_desc_irq(struct subchannel *sch, void *page)
*/
if (ssd_area->st > 3) { /* uhm, that looks strange... */
CIO_CRW_EVENT(0, "Strange subchannel type %d"
- " for sch %04x\n", ssd_area->st, sch->irq);
+ " for sch %04x\n", ssd_area->st,
+ sch->schid.sch_no);
/*
* There may have been a new subchannel type defined in the
* time since this code was written; since we don't know which
@@ -157,7 +158,7 @@ chsc_get_sch_desc_irq(struct subchannel *sch, void *page)
} else {
const char *type[4] = {"I/O", "chsc", "message", "ADM"};
CIO_CRW_EVENT(6, "ssd: sch %04x is %s subchannel\n",
- sch->irq, type[ssd_area->st]);
+ sch->schid.sch_no, type[ssd_area->st]);
sch->ssd_info.valid = 1;
sch->ssd_info.type = ssd_area->st;
@@ -232,7 +233,7 @@ s390_subchannel_remove_chpid(struct device *dev, void *data)
mask = 0x80 >> j;
spin_lock(&sch->lock);
- stsch(sch->irq, &schib);
+ stsch(sch->schid, &schib);
if (!schib.pmcw.dnv)
goto out_unreg;
memcpy(&sch->schib, &schib, sizeof(struct schib));
@@ -284,7 +285,7 @@ out_unlock:
out_unreg:
spin_unlock(&sch->lock);
sch->lpm = 0;
- if (css_enqueue_subchannel_slow(sch->irq)) {
+ if (css_enqueue_subchannel_slow(sch->schid)) {
css_clear_subchannel_slow_list();
need_rescan = 1;
}
@@ -337,7 +338,7 @@ s390_process_res_acc_sch(u8 chpid, __u16 fla, u32 fla_mask,
* new path information and eventually check for logically
* offline chpids.
*/
- ccode = stsch(sch->irq, &sch->schib);
+ ccode = stsch(sch->schid, &sch->schib);
if (ccode > 0)
return 0;
@@ -348,7 +349,8 @@ static int
s390_process_res_acc (u8 chpid, __u16 fla, u32 fla_mask)
{
struct subchannel *sch;
- int irq, rc;
+ int rc;
+ struct subchannel_id schid;
char dbf_txt[15];
sprintf(dbf_txt, "accpr%x", chpid);
@@ -370,10 +372,11 @@ s390_process_res_acc (u8 chpid, __u16 fla, u32 fla_mask)
return 0; /* no need to do the rest */
rc = 0;
- for (irq = 0; irq < __MAX_SUBCHANNELS; irq++) {
+ init_subchannel_id(&schid);
+ do {
int chp_mask, old_lpm;
- sch = get_subchannel_by_schid(irq);
+ sch = get_subchannel_by_schid(schid);
if (!sch) {
struct schib schib;
int ret;
@@ -385,7 +388,7 @@ s390_process_res_acc (u8 chpid, __u16 fla, u32 fla_mask)
* that beast may be on we'll have to do a stsch
* on all devices, grr...
*/
- if (stsch(irq, &schib)) {
+ if (stsch(schid, &schib)) {
/* We're through */
if (need_rescan)
rc = -EAGAIN;
@@ -396,7 +399,7 @@ s390_process_res_acc (u8 chpid, __u16 fla, u32 fla_mask)
continue;
}
/* Put it on the slow path. */
- ret = css_enqueue_subchannel_slow(irq);
+ ret = css_enqueue_subchannel_slow(schid);
if (ret) {
css_clear_subchannel_slow_list();
need_rescan = 1;
@@ -428,7 +431,7 @@ s390_process_res_acc (u8 chpid, __u16 fla, u32 fla_mask)
put_device(&sch->dev);
if (fla_mask == 0xffff)
break;
- }
+ } while (schid.sch_no++ < __MAX_SUBCHANNEL);
return rc;
}
@@ -608,7 +611,8 @@ static int
chp_add(int chpid)
{
struct subchannel *sch;
- int irq, ret, rc;
+ int ret, rc;
+ struct subchannel_id schid;
char dbf_txt[15];
if (!get_chp_status(chpid))
@@ -618,14 +622,15 @@ chp_add(int chpid)
CIO_TRACE_EVENT(2, dbf_txt);
rc = 0;
- for (irq = 0; irq < __MAX_SUBCHANNELS; irq++) {
+ init_subchannel_id(&schid);
+ do {
int i;
- sch = get_subchannel_by_schid(irq);
+ sch = get_subchannel_by_schid(schid);
if (!sch) {
struct schib schib;
- if (stsch(irq, &schib)) {
+ if (stsch(schid, &schib)) {
/* We're through */
if (need_rescan)
rc = -EAGAIN;
@@ -636,7 +641,7 @@ chp_add(int chpid)
continue;
}
/* Put it on the slow path. */
- ret = css_enqueue_subchannel_slow(irq);
+ ret = css_enqueue_subchannel_slow(schid);
if (ret) {
css_clear_subchannel_slow_list();
need_rescan = 1;
@@ -648,7 +653,7 @@ chp_add(int chpid)
spin_lock(&sch->lock);
for (i=0; i<8; i++)
if (sch->schib.pmcw.chpid[i] == chpid) {
- if (stsch(sch->irq, &sch->schib) != 0) {
+ if (stsch(sch->schid, &sch->schib) != 0) {
/* Endgame. */
spin_unlock(&sch->lock);
return rc;
@@ -669,7 +674,7 @@ chp_add(int chpid)
spin_unlock(&sch->lock);
put_device(&sch->dev);
- }
+ } while (schid.sch_no++ < __MAX_SUBCHANNEL);
return rc;
}
@@ -702,7 +707,7 @@ __check_for_io_and_kill(struct subchannel *sch, int index)
if (!device_is_online(sch))
/* cio could be doing I/O. */
return 0;
- cc = stsch(sch->irq, &sch->schib);
+ cc = stsch(sch->schid, &sch->schib);
if (cc)
return 0;
if (sch->schib.scsw.actl && sch->schib.pmcw.lpum == (0x80 >> index)) {
@@ -743,7 +748,7 @@ __s390_subchannel_vary_chpid(struct subchannel *sch, __u8 chpid, int on)
* just varied off path. Then kill it.
*/
if (!__check_for_io_and_kill(sch, chp) && !sch->lpm) {
- if (css_enqueue_subchannel_slow(sch->irq)) {
+ if (css_enqueue_subchannel_slow(sch->schid)) {
css_clear_subchannel_slow_list();
need_rescan = 1;
}
@@ -789,7 +794,8 @@ static int
s390_vary_chpid( __u8 chpid, int on)
{
char dbf_text[15];
- int status, irq, ret;
+ int status, ret;
+ struct subchannel_id schid;
struct subchannel *sch;
sprintf(dbf_text, on?"varyon%x":"varyoff%x", chpid);
@@ -818,26 +824,27 @@ s390_vary_chpid( __u8 chpid, int on)
if (!on)
goto out;
/* Scan for new devices on varied on path. */
- for (irq = 0; irq < __MAX_SUBCHANNELS; irq++) {
+ init_subchannel_id(&schid);
+ do {
struct schib schib;
if (need_rescan)
break;
- sch = get_subchannel_by_schid(irq);
+ sch = get_subchannel_by_schid(schid);
if (sch) {
put_device(&sch->dev);
continue;
}
- if (stsch(irq, &schib))
+ if (stsch(schid, &schib))
/* We're through */
break;
/* Put it on the slow path. */
- ret = css_enqueue_subchannel_slow(irq);
+ ret = css_enqueue_subchannel_slow(schid);
if (ret) {
css_clear_subchannel_slow_list();
need_rescan = 1;
}
- }
+ } while (schid.sch_no++ < __MAX_SUBCHANNEL);
out:
if (need_rescan || css_slow_subchannels_exist())
queue_work(slow_path_wq, &slow_path_work);
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index 185bc73c3ecd..396bada65f86 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -135,7 +135,7 @@ cio_tpi(void)
return 0;
irb = (struct irb *) __LC_IRB;
/* Store interrupt response block to lowcore. */
- if (tsch (tpi_info->irq, irb) != 0)
+ if (tsch (tpi_info->schid, irb) != 0)
/* Not status pending or not operational. */
return 1;
sch = (struct subchannel *)(unsigned long)tpi_info->intparm;
@@ -163,10 +163,10 @@ cio_start_handle_notoper(struct subchannel *sch, __u8 lpm)
else
sch->lpm = 0;
- stsch (sch->irq, &sch->schib);
+ stsch (sch->schid, &sch->schib);
CIO_MSG_EVENT(0, "cio_start: 'not oper' status for "
- "subchannel %04x!\n", sch->irq);
+ "subchannel %04x!\n", sch->schid.sch_no);
sprintf(dbf_text, "no%s", sch->dev.bus_id);
CIO_TRACE_EVENT(0, dbf_text);
CIO_HEX_EVENT(0, &sch->schib, sizeof (struct schib));
@@ -204,7 +204,7 @@ cio_start_key (struct subchannel *sch, /* subchannel structure */
sch->orb.key = key >> 4;
/* issue "Start Subchannel" */
sch->orb.cpa = (__u32) __pa (cpa);
- ccode = ssch (sch->irq, &sch->orb);
+ ccode = ssch (sch->schid, &sch->orb);
/* process condition code */
sprintf (dbf_txt, "ccode:%d", ccode);
@@ -243,7 +243,7 @@ cio_resume (struct subchannel *sch)
CIO_TRACE_EVENT (4, "resIO");
CIO_TRACE_EVENT (4, sch->dev.bus_id);
- ccode = rsch (sch->irq);
+ ccode = rsch (sch->schid);
sprintf (dbf_txt, "ccode:%d", ccode);
CIO_TRACE_EVENT (4, dbf_txt);
@@ -283,7 +283,7 @@ cio_halt(struct subchannel *sch)
/*
* Issue "Halt subchannel" and process condition code
*/
- ccode = hsch (sch->irq);
+ ccode = hsch (sch->schid);
sprintf (dbf_txt, "ccode:%d", ccode);
CIO_TRACE_EVENT (2, dbf_txt);
@@ -318,7 +318,7 @@ cio_clear(struct subchannel *sch)
/*
* Issue "Clear subchannel" and process condition code
*/
- ccode = csch (sch->irq);
+ ccode = csch (sch->schid);
sprintf (dbf_txt, "ccode:%d", ccode);
CIO_TRACE_EVENT (2, dbf_txt);
@@ -351,7 +351,7 @@ cio_cancel (struct subchannel *sch)
CIO_TRACE_EVENT (2, "cancelIO");
CIO_TRACE_EVENT (2, sch->dev.bus_id);
- ccode = xsch (sch->irq);
+ ccode = xsch (sch->schid);
sprintf (dbf_txt, "ccode:%d", ccode);
CIO_TRACE_EVENT (2, dbf_txt);
@@ -359,7 +359,7 @@ cio_cancel (struct subchannel *sch)
switch (ccode) {
case 0: /* success */
/* Update information in scsw. */
- stsch (sch->irq, &sch->schib);
+ stsch (sch->schid, &sch->schib);
return 0;
case 1: /* status pending */
return -EBUSY;
@@ -381,7 +381,7 @@ cio_modify (struct subchannel *sch)
ret = 0;
for (retry = 0; retry < 5; retry++) {
- ccode = msch_err (sch->irq, &sch->schib);
+ ccode = msch_err (sch->schid, &sch->schib);
if (ccode < 0) /* -EIO if msch gets a program check. */
return ccode;
switch (ccode) {
@@ -414,7 +414,7 @@ cio_enable_subchannel (struct subchannel *sch, unsigned int isc)
CIO_TRACE_EVENT (2, "ensch");
CIO_TRACE_EVENT (2, sch->dev.bus_id);
- ccode = stsch (sch->irq, &sch->schib);
+ ccode = stsch (sch->schid, &sch->schib);
if (ccode)
return -ENODEV;
@@ -432,13 +432,13 @@ cio_enable_subchannel (struct subchannel *sch, unsigned int isc)
*/
sch->schib.pmcw.csense = 0;
if (ret == 0) {
- stsch (sch->irq, &sch->schib);
+ stsch (sch->schid, &sch->schib);
if (sch->schib.pmcw.ena)
break;
}
if (ret == -EBUSY) {
struct irb irb;
- if (tsch(sch->irq, &irb) != 0)
+ if (tsch(sch->schid, &irb) != 0)
break;
}
}
@@ -461,7 +461,7 @@ cio_disable_subchannel (struct subchannel *sch)
CIO_TRACE_EVENT (2, "dissch");
CIO_TRACE_EVENT (2, sch->dev.bus_id);
- ccode = stsch (sch->irq, &sch->schib);
+ ccode = stsch (sch->schid, &sch->schib);
if (ccode == 3) /* Not operational. */
return -ENODEV;
@@ -485,7 +485,7 @@ cio_disable_subchannel (struct subchannel *sch)
*/
break;
if (ret == 0) {
- stsch (sch->irq, &sch->schib);
+ stsch (sch->schid, &sch->schib);
if (!sch->schib.pmcw.ena)
break;
}
@@ -508,12 +508,12 @@ cio_disable_subchannel (struct subchannel *sch)
* -ENODEV for subchannels with invalid device number or blacklisted devices
*/
int
-cio_validate_subchannel (struct subchannel *sch, unsigned int irq)
+cio_validate_subchannel (struct subchannel *sch, struct subchannel_id schid)
{
char dbf_txt[15];
int ccode;
- sprintf (dbf_txt, "valsch%x", irq);
+ sprintf (dbf_txt, "valsch%x", schid.sch_no);
CIO_TRACE_EVENT (4, dbf_txt);
/* Nuke all fields. */
@@ -522,17 +522,17 @@ cio_validate_subchannel (struct subchannel *sch, unsigned int irq)
spin_lock_init(&sch->lock);
/* Set a name for the subchannel */
- snprintf (sch->dev.bus_id, BUS_ID_SIZE, "0.0.%04x", irq);
+ snprintf (sch->dev.bus_id, BUS_ID_SIZE, "0.0.%04x", schid.sch_no);
/*
* The first subchannel that is not-operational (ccode==3)
* indicates that there aren't any more devices available.
*/
- sch->irq = irq;
- ccode = stsch (irq, &sch->schib);
+ ccode = stsch (schid, &sch->schib);
if (ccode)
return -ENXIO;
+ sch->schid = schid;
/* Copy subchannel type from path management control word. */
sch->st = sch->schib.pmcw.st;
@@ -543,7 +543,7 @@ cio_validate_subchannel (struct subchannel *sch, unsigned int irq)
CIO_DEBUG(KERN_INFO, 0,
"Subchannel %04X reports "
"non-I/O subchannel type %04X\n",
- sch->irq, sch->st);
+ sch->schid.sch_no, sch->st);
/* We stop here for non-io subchannels. */
return sch->st;
}
@@ -573,7 +573,7 @@ cio_validate_subchannel (struct subchannel *sch, unsigned int irq)
CIO_DEBUG(KERN_INFO, 0,
"Detected device %04X on subchannel %04X"
" - PIM = %02X, PAM = %02X, POM = %02X\n",
- sch->schib.pmcw.dev, sch->irq, sch->schib.pmcw.pim,
+ sch->schib.pmcw.dev, sch->schid.sch_no, sch->schib.pmcw.pim,
sch->schib.pmcw.pam, sch->schib.pmcw.pom);
/*
@@ -632,7 +632,7 @@ do_IRQ (struct pt_regs *regs)
if (sch)
spin_lock(&sch->lock);
/* Store interrupt response block to lowcore. */
- if (tsch (tpi_info->irq, irb) == 0 && sch) {
+ if (tsch (tpi_info->schid, irb) == 0 && sch) {
/* Keep subchannel information word up to date. */
memcpy (&sch->schib.scsw, &irb->scsw,
sizeof (irb->scsw));
@@ -693,26 +693,28 @@ wait_cons_dev (void)
static int
cio_console_irq(void)
{
- int irq;
+ struct subchannel_id schid;
+ init_subchannel_id(&schid);
if (console_irq != -1) {
/* VM provided us with the irq number of the console. */
- if (stsch(console_irq, &console_subchannel.schib) != 0 ||
+ schid.sch_no = console_irq;
+ if (stsch(schid, &console_subchannel.schib) != 0 ||
!console_subchannel.schib.pmcw.dnv)
return -1;
console_devno = console_subchannel.schib.pmcw.dev;
} else if (console_devno != -1) {
/* At least the console device number is known. */
- for (irq = 0; irq < __MAX_SUBCHANNELS; irq++) {
- if (stsch(irq, &console_subchannel.schib) != 0)
+ do {
+ if (stsch(schid, &console_subchannel.schib) != 0)
break;
if (console_subchannel.schib.pmcw.dnv &&
console_subchannel.schib.pmcw.dev ==
console_devno) {
- console_irq = irq;
+ console_irq = schid.sch_no;
break;
}
- }
+ } while (schid.sch_no++ < __MAX_SUBCHANNEL);
if (console_irq == -1)
return -1;
} else {
@@ -729,6 +731,7 @@ struct subchannel *
cio_probe_console(void)
{
int irq, ret;
+ struct subchannel_id schid;
if (xchg(&console_subchannel_in_use, 1) != 0)
return ERR_PTR(-EBUSY);
@@ -738,7 +741,9 @@ cio_probe_console(void)
return ERR_PTR(-ENODEV);
}
memset(&console_subchannel, 0, sizeof(struct subchannel));
- ret = cio_validate_subchannel(&console_subchannel, irq);
+ init_subchannel_id(&schid);
+ schid.sch_no = irq;
+ ret = cio_validate_subchannel(&console_subchannel, schid);
if (ret) {
console_subchannel_in_use = 0;
return ERR_PTR(-ENODEV);
@@ -770,11 +775,11 @@ cio_release_console(void)
/* Bah... hack to catch console special sausages. */
int
-cio_is_console(int irq)
+cio_is_console(struct subchannel_id schid)
{
if (!console_subchannel_in_use)
return 0;
- return (irq == console_subchannel.irq);
+ return schid_equal(&schid, &console_subchannel.schid);
}
struct subchannel *
@@ -787,7 +792,7 @@ cio_get_console_subchannel(void)
#endif
static inline int
-__disable_subchannel_easy(unsigned int schid, struct schib *schib)
+__disable_subchannel_easy(struct subchannel_id schid, struct schib *schib)
{
int retry, cc;
@@ -805,7 +810,7 @@ __disable_subchannel_easy(unsigned int schid, struct schib *schib)
}
static inline int
-__clear_subchannel_easy(unsigned int schid)
+__clear_subchannel_easy(struct subchannel_id schid)
{
int retry;
@@ -815,8 +820,8 @@ __clear_subchannel_easy(unsigned int schid)
struct tpi_info ti;
if (tpi(&ti)) {
- tsch(ti.irq, (struct irb *)__LC_IRB);
- if (ti.irq == schid)
+ tsch(ti.schid, (struct irb *)__LC_IRB);
+ if (schid_equal(&ti.schid, &schid))
return 0;
}
udelay(100);
@@ -830,10 +835,11 @@ extern void do_reipl(unsigned long devno);
void
clear_all_subchannels(void)
{
- unsigned int schid;
+ struct subchannel_id schid;
local_irq_disable();
- for (schid=0;schid<=highest_subchannel;schid++) {
+ init_subchannel_id(&schid);
+ do {
struct schib schib;
if (stsch(schid, &schib))
break; /* break out of the loop */
@@ -849,7 +855,7 @@ clear_all_subchannels(void)
stsch(schid, &schib);
__disable_subchannel_easy(schid, &schib);
}
- }
+ } while (schid.sch_no++ < __MAX_SUBCHANNEL);
}
/* Make sure all subchannels are quiet before we re-ipl an lpar. */
diff --git a/drivers/s390/cio/cio.h b/drivers/s390/cio/cio.h
index c50a9da420a9..0ca987344e07 100644
--- a/drivers/s390/cio/cio.h
+++ b/drivers/s390/cio/cio.h
@@ -1,6 +1,8 @@
#ifndef S390_CIO_H
#define S390_CIO_H
+#include "schid.h"
+
/*
* where we put the ssd info
*/
@@ -83,7 +85,7 @@ struct orb {
/* subchannel data structure used by I/O subroutines */
struct subchannel {
- unsigned int irq; /* aka. subchannel number */
+ struct subchannel_id schid;
spinlock_t lock; /* subchannel lock */
enum {
@@ -114,7 +116,7 @@ struct subchannel {
#define to_subchannel(n) container_of(n, struct subchannel, dev)
-extern int cio_validate_subchannel (struct subchannel *, unsigned int);
+extern int cio_validate_subchannel (struct subchannel *, struct subchannel_id);
extern int cio_enable_subchannel (struct subchannel *, unsigned int);
extern int cio_disable_subchannel (struct subchannel *);
extern int cio_cancel (struct subchannel *);
@@ -127,14 +129,15 @@ extern int cio_cancel (struct subchannel *);
extern int cio_set_options (struct subchannel *, int);
extern int cio_get_options (struct subchannel *);
extern int cio_modify (struct subchannel *);
+
/* Use with care. */
#ifdef CONFIG_CCW_CONSOLE
extern struct subchannel *cio_probe_console(void);
extern void cio_release_console(void);
-extern int cio_is_console(int irq);
+extern int cio_is_console(struct subchannel_id);
extern struct subchannel *cio_get_console_subchannel(void);
#else
-#define cio_is_console(irq) 0
+#define cio_is_console(schid) 0
#define cio_get_console_subchannel() NULL
#endif
diff --git a/drivers/s390/cio/cmf.c b/drivers/s390/cio/cmf.c
index b978f7fe8327..0b03714e696a 100644
--- a/drivers/s390/cio/cmf.c
+++ b/drivers/s390/cio/cmf.c
@@ -1,5 +1,5 @@
/*
- * linux/drivers/s390/cio/cmf.c ($Revision: 1.16 $)
+ * linux/drivers/s390/cio/cmf.c ($Revision: 1.19 $)
*
* Linux on zSeries Channel Measurement Facility support
*
@@ -178,7 +178,7 @@ set_schib(struct ccw_device *cdev, u32 mme, int mbfc, unsigned long address)
/* msch can silently fail, so do it again if necessary */
for (retry = 0; retry < 3; retry++) {
/* prepare schib */
- stsch(sch->irq, schib);
+ stsch(sch->schid, schib);
schib->pmcw.mme = mme;
schib->pmcw.mbfc = mbfc;
/* address can be either a block address or a block index */
@@ -188,7 +188,7 @@ set_schib(struct ccw_device *cdev, u32 mme, int mbfc, unsigned long address)
schib->pmcw.mbi = address;
/* try to submit it */
- switch(ret = msch_err(sch->irq, schib)) {
+ switch(ret = msch_err(sch->schid, schib)) {
case 0:
break;
case 1:
@@ -202,7 +202,7 @@ set_schib(struct ccw_device *cdev, u32 mme, int mbfc, unsigned long address)
ret = -EINVAL;
break;
}
- stsch(sch->irq, schib); /* restore the schib */
+ stsch(sch->schid, schib); /* restore the schib */
if (ret)
break;
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index 7e4d57b4266f..5137dafd1e8d 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -33,7 +33,7 @@ struct device css_bus_device = {
};
static struct subchannel *
-css_alloc_subchannel(int irq)
+css_alloc_subchannel(struct subchannel_id schid)
{
struct subchannel *sch;
int ret;
@@ -41,13 +41,11 @@ css_alloc_subchannel(int irq)
sch = kmalloc (sizeof (*sch), GFP_KERNEL | GFP_DMA);
if (sch == NULL)
return ERR_PTR(-ENOMEM);
- ret = cio_validate_subchannel (sch, irq);
+ ret = cio_validate_subchannel (sch, schid);
if (ret < 0) {
kfree(sch);
return ERR_PTR(ret);
}
- if (irq > highest_subchannel)
- highest_subchannel = irq;
if (sch->st != SUBCHANNEL_TYPE_IO) {
/* For now we ignore all non-io subchannels. */
@@ -87,7 +85,7 @@ css_subchannel_release(struct device *dev)
struct subchannel *sch;
sch = to_subchannel(dev);
- if (!cio_is_console(sch->irq))
+ if (!cio_is_console(sch->schid))
kfree(sch);
}
@@ -114,12 +112,12 @@ css_register_subchannel(struct subchannel *sch)
}
int
-css_probe_device(int irq)
+css_probe_device(struct subchannel_id schid)
{
int ret;
struct subchannel *sch;
- sch = css_alloc_subchannel(irq);
+ sch = css_alloc_subchannel(schid);
if (IS_ERR(sch))
return PTR_ERR(sch);
ret = css_register_subchannel(sch);
@@ -132,26 +130,26 @@ static int
check_subchannel(struct device * dev, void * data)
{
struct subchannel *sch;
- int irq = (unsigned long)data;
+ struct subchannel_id *schid = data;
sch = to_subchannel(dev);
- return (sch->irq == irq);
+ return schid_equal(&sch->schid, schid);
}
struct subchannel *
-get_subchannel_by_schid(int irq)
+get_subchannel_by_schid(struct subchannel_id schid)
{
struct device *dev;
dev = bus_find_device(&css_bus_type, NULL,
- (void *)(unsigned long)irq, check_subchannel);
+ (void *)&schid, check_subchannel);
return dev ? to_subchannel(dev) : NULL;
}
static inline int
-css_get_subchannel_status(struct subchannel *sch, int schid)
+css_get_subchannel_status(struct subchannel *sch, struct subchannel_id schid)
{
struct schib schib;
int cc;
@@ -170,13 +168,13 @@ css_get_subchannel_status(struct subchannel *sch, int schid)
}
static int
-css_evaluate_subchannel(int irq, int slow)
+css_evaluate_subchannel(struct subchannel_id schid, int slow)
{
int event, ret, disc;
struct subchannel *sch;
unsigned long flags;
- sch = get_subchannel_by_schid(irq);
+ sch = get_subchannel_by_schid(schid);
disc = sch ? device_is_disconnected(sch) : 0;
if (disc && slow) {
if (sch)
@@ -194,9 +192,10 @@ css_evaluate_subchannel(int irq, int slow)
put_device(&sch->dev);
return -EAGAIN; /* Will be done on the slow path. */
}
- event = css_get_subchannel_status(sch, irq);
+ event = css_get_subchannel_status(sch, schid);
CIO_MSG_EVENT(4, "Evaluating schid %04x, event %d, %s, %s path.\n",
- irq, event, sch?(disc?"disconnected":"normal"):"unknown",
+ schid.sch_no, event,
+ sch?(disc?"disconnected":"normal"):"unknown",
slow?"slow":"fast");
switch (event) {
case CIO_NO_PATH:
@@ -253,7 +252,7 @@ css_evaluate_subchannel(int irq, int slow)
sch->schib.pmcw.intparm = 0;
cio_modify(sch);
put_device(&sch->dev);
- ret = css_probe_device(irq);
+ ret = css_probe_device(schid);
} else {
/*
* We can't immediately deregister the disconnected
@@ -272,7 +271,7 @@ css_evaluate_subchannel(int irq, int slow)
device_trigger_reprobe(sch);
spin_unlock_irqrestore(&sch->lock, flags);
}
- ret = sch ? 0 : css_probe_device(irq);
+ ret = sch ? 0 : css_probe_device(schid);
break;
default:
BUG();
@@ -284,10 +283,12 @@ css_evaluate_subchannel(int irq, int slow)
static void
css_rescan_devices(void)
{
- int irq, ret;
+ int ret;
+ struct subchannel_id schid;
- for (irq = 0; irq < __MAX_SUBCHANNELS; irq++) {
- ret = css_evaluate_subchannel(irq, 1);
+ init_subchannel_id(&schid);
+ do {
+ ret = css_evaluate_subchannel(schid, 1);
/* No more memory. It doesn't make sense to continue. No
* panic because this can happen in midflight and just
* because we can't use a new device is no reason to crash
@@ -297,12 +298,12 @@ css_rescan_devices(void)
/* -ENXIO indicates that there are no more subchannels. */
if (ret == -ENXIO)
break;
- }
+ } while (schid.sch_no++ < __MAX_SUBCHANNEL);
}
struct slow_subchannel {
struct list_head slow_list;
- unsigned long schid;
+ struct subchannel_id schid;
};
static LIST_HEAD(slow_subchannels_head);
@@ -357,20 +358,24 @@ int
css_process_crw(int irq)
{
int ret;
+ struct subchannel_id mchk_schid;
CIO_CRW_EVENT(2, "source is subchannel %04X\n", irq);
if (need_rescan)
/* We need to iterate all subchannels anyway. */
return -EAGAIN;
+
+ init_subchannel_id(&mchk_schid);
+ mchk_schid.sch_no = irq;
/*
* Since we are always presented with IPI in the CRW, we have to
* use stsch() to find out if the subchannel in question has come
* or gone.
*/
- ret = css_evaluate_subchannel(irq, 0);
+ ret = css_evaluate_subchannel(mchk_schid, 0);
if (ret == -EAGAIN) {
- if (css_enqueue_subchannel_slow(irq)) {
+ if (css_enqueue_subchannel_slow(mchk_schid)) {
css_clear_subchannel_slow_list();
need_rescan = 1;
}
@@ -404,7 +409,8 @@ css_generate_pgid(void)
static int __init
init_channel_subsystem (void)
{
- int ret, irq;
+ int ret;
+ struct subchannel_id schid;
if (chsc_determine_css_characteristics() == 0)
css_characteristics_avail = 1;
@@ -420,13 +426,14 @@ init_channel_subsystem (void)
ctl_set_bit(6, 28);
- for (irq = 0; irq < __MAX_SUBCHANNELS; irq++) {
+ init_subchannel_id(&schid);
+ do {
struct subchannel *sch;
- if (cio_is_console(irq))
+ if (cio_is_console(schid))
sch = cio_get_console_subchannel();
else {
- sch = css_alloc_subchannel(irq);
+ sch = css_alloc_subchannel(schid);
if (IS_ERR(sch))
ret = PTR_ERR(sch);
else
@@ -448,7 +455,7 @@ init_channel_subsystem (void)
* console subchannel.
*/
css_register_subchannel(sch);
- }
+ } while (schid.sch_no++ < __MAX_SUBCHANNEL);
return 0;
out_bus:
@@ -482,7 +489,7 @@ struct bus_type css_bus_type = {
subsys_initcall(init_channel_subsystem);
int
-css_enqueue_subchannel_slow(unsigned long schid)
+css_enqueue_subchannel_slow(struct subchannel_id schid)
{
struct slow_subchannel *new_slow_sch;
unsigned long flags;
diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h
index 2004a6c49388..f26e16daecb5 100644
--- a/drivers/s390/cio/css.h
+++ b/drivers/s390/cio/css.h
@@ -6,6 +6,8 @@
#include <asm/cio.h>
+#include "schid.h"
+
/*
* path grouping stuff
*/
@@ -68,7 +70,7 @@ struct ccw_device_private {
atomic_t onoff;
unsigned long registered;
__u16 devno; /* device number */
- __u16 irq; /* subchannel number */
+ __u16 sch_no; /* subchannel number */
__u8 imask; /* lpm mask for SNID/SID/SPGID */
int iretry; /* retry counter SNID/SID/SPGID */
struct {
@@ -121,12 +123,11 @@ struct css_driver {
extern struct bus_type css_bus_type;
extern struct css_driver io_subchannel_driver;
-int css_probe_device(int irq);
-extern struct subchannel * get_subchannel_by_schid(int irq);
-extern unsigned int highest_subchannel;
+extern int css_probe_device(struct subchannel_id);
+extern struct subchannel * get_subchannel_by_schid(struct subchannel_id);
extern int css_init_done;
-#define __MAX_SUBCHANNELS 65536
+#define __MAX_SUBCHANNEL 65535
extern struct bus_type css_bus_type;
extern struct device css_bus_device;
@@ -144,7 +145,7 @@ void device_set_waiting(struct subchannel *);
void device_kill_pending_timer(struct subchannel *);
/* Helper functions to build lists for the slow path. */
-int css_enqueue_subchannel_slow(unsigned long schid);
+extern int css_enqueue_subchannel_slow(struct subchannel_id schid);
void css_walk_subchannel_slow_list(void (*fn)(unsigned long));
void css_clear_subchannel_slow_list(void);
int css_slow_subchannels_exist(void);
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 0590cffe62aa..9ac07aeffbe6 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -622,7 +622,7 @@ ccw_device_do_unreg_rereg(void *data)
other_sch = to_subchannel(other_cdev->dev.parent);
if (get_device(&other_sch->dev)) {
- stsch(other_sch->irq, &other_sch->schib);
+ stsch(other_sch->schid, &other_sch->schib);
if (other_sch->schib.pmcw.dnv) {
other_sch->schib.pmcw.intparm = 0;
cio_modify(other_sch);
@@ -772,7 +772,7 @@ io_subchannel_recog(struct ccw_device *cdev, struct subchannel *sch)
/* Init private data. */
priv = cdev->private;
priv->devno = sch->schib.pmcw.dev;
- priv->irq = sch->irq;
+ priv->sch_no = sch->schid.sch_no;
priv->state = DEV_STATE_NOT_OPER;
INIT_LIST_HEAD(&priv->cmb_list);
init_waitqueue_head(&priv->wait_q);
@@ -951,7 +951,7 @@ io_subchannel_shutdown(struct device *dev)
sch = to_subchannel(dev);
cdev = dev->driver_data;
- if (cio_is_console(sch->irq))
+ if (cio_is_console(sch->schid))
return;
if (!sch->schib.pmcw.ena)
/* Nothing to do. */
@@ -1146,6 +1146,16 @@ ccw_driver_unregister (struct ccw_driver *cdriver)
driver_unregister(&cdriver->driver);
}
+/* Helper func for qdio. */
+struct subchannel_id
+ccw_device_get_subchannel_id(struct ccw_device *cdev)
+{
+ struct subchannel *sch;
+
+ sch = to_subchannel(cdev->dev.parent);
+ return sch->schid;
+}
+
MODULE_LICENSE("GPL");
EXPORT_SYMBOL(ccw_device_set_online);
EXPORT_SYMBOL(ccw_device_set_offline);
@@ -1155,3 +1165,4 @@ EXPORT_SYMBOL(get_ccwdev_by_busid);
EXPORT_SYMBOL(ccw_bus_type);
EXPORT_SYMBOL(ccw_device_work);
EXPORT_SYMBOL(ccw_device_notify_work);
+EXPORT_SYMBOL_GPL(ccw_device_get_subchannel_id);
diff --git a/drivers/s390/cio/device.h b/drivers/s390/cio/device.h
index a3aa056d7245..11587ebb7289 100644
--- a/drivers/s390/cio/device.h
+++ b/drivers/s390/cio/device.h
@@ -110,6 +110,7 @@ int ccw_device_stlck(struct ccw_device *);
/* qdio needs this. */
void ccw_device_set_timeout(struct ccw_device *, int);
+extern struct subchannel_id ccw_device_get_subchannel_id(struct ccw_device *);
void retry_set_schib(struct ccw_device *cdev);
#endif
diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c
index c1c89f4fd4e3..9efeae75ad28 100644
--- a/drivers/s390/cio/device_fsm.c
+++ b/drivers/s390/cio/device_fsm.c
@@ -133,7 +133,7 @@ ccw_device_cancel_halt_clear(struct ccw_device *cdev)
int ret;
sch = to_subchannel(cdev->dev.parent);
- ret = stsch(sch->irq, &sch->schib);
+ ret = stsch(sch->schid, &sch->schib);
if (ret || !sch->schib.pmcw.dnv)
return -ENODEV;
if (!sch->schib.pmcw.ena || sch->schib.scsw.actl == 0)
@@ -231,7 +231,7 @@ ccw_device_recog_done(struct ccw_device *cdev, int state)
* through ssch() and the path information is up to date.
*/
old_lpm = sch->lpm;
- stsch(sch->irq, &sch->schib);
+ stsch(sch->schid, &sch->schib);
sch->lpm = sch->schib.pmcw.pim &
sch->schib.pmcw.pam &
sch->schib.pmcw.pom &
@@ -258,7 +258,7 @@ ccw_device_recog_done(struct ccw_device *cdev, int state)
case DEV_STATE_NOT_OPER:
CIO_DEBUG(KERN_WARNING, 2,
"SenseID : unknown device %04x on subchannel %04x\n",
- cdev->private->devno, sch->irq);
+ cdev->private->devno, sch->schid.sch_no);
break;
case DEV_STATE_OFFLINE:
if (cdev->private->state == DEV_STATE_DISCONNECTED_SENSE_ID) {
@@ -291,7 +291,7 @@ ccw_device_recog_done(struct ccw_device *cdev, int state)
case DEV_STATE_BOXED:
CIO_DEBUG(KERN_WARNING, 2,
"SenseID : boxed device %04x on subchannel %04x\n",
- cdev->private->devno, sch->irq);
+ cdev->private->devno, sch->schid.sch_no);
break;
}
cdev->private->state = state;
@@ -359,7 +359,7 @@ ccw_device_done(struct ccw_device *cdev, int state)
if (state == DEV_STATE_BOXED)
CIO_DEBUG(KERN_WARNING, 2,
"Boxed device %04x on subchannel %04x\n",
- cdev->private->devno, sch->irq);
+ cdev->private->devno, sch->schid.sch_no);
if (cdev->private->flags.donotify) {
cdev->private->flags.donotify = 0;
@@ -592,7 +592,7 @@ ccw_device_offline(struct ccw_device *cdev)
struct subchannel *sch;
sch = to_subchannel(cdev->dev.parent);
- if (stsch(sch->irq, &sch->schib) || !sch->schib.pmcw.dnv)
+ if (stsch(sch->schid, &sch->schib) || !sch->schib.pmcw.dnv)
return -ENODEV;
if (cdev->private->state != DEV_STATE_ONLINE) {
if (sch->schib.scsw.actl != 0)
@@ -711,7 +711,7 @@ ccw_device_online_verify(struct ccw_device *cdev, enum dev_event dev_event)
* Since we might not just be coming from an interrupt from the
* subchannel we have to update the schib.
*/
- stsch(sch->irq, &sch->schib);
+ stsch(sch->schid, &sch->schib);
if (sch->schib.scsw.actl != 0 ||
(cdev->private->irb.scsw.stctl & SCSW_STCTL_STATUS_PEND)) {
@@ -923,7 +923,7 @@ ccw_device_wait4io_irq(struct ccw_device *cdev, enum dev_event dev_event)
/* Iff device is idle, reset timeout. */
sch = to_subchannel(cdev->dev.parent);
- if (!stsch(sch->irq, &sch->schib))
+ if (!stsch(sch->schid, &sch->schib))
if (sch->schib.scsw.actl == 0)
ccw_device_set_timeout(cdev, 0);
/* Call the handler. */
@@ -1035,7 +1035,7 @@ device_trigger_reprobe(struct subchannel *sch)
return;
/* Update some values. */
- if (stsch(sch->irq, &sch->schib))
+ if (stsch(sch->schid, &sch->schib))
return;
/*
diff --git a/drivers/s390/cio/device_id.c b/drivers/s390/cio/device_id.c
index 0e68fb511dc9..207881ec7aaf 100644
--- a/drivers/s390/cio/device_id.c
+++ b/drivers/s390/cio/device_id.c
@@ -258,7 +258,7 @@ ccw_device_check_sense_id(struct ccw_device *cdev)
*/
CIO_MSG_EVENT(2, "SenseID : device %04x on Subchannel %04x "
"reports cmd reject\n",
- cdev->private->devno, sch->irq);
+ cdev->private->devno, sch->schid.sch_no);
return -EOPNOTSUPP;
}
if (irb->esw.esw0.erw.cons) {
@@ -280,13 +280,13 @@ ccw_device_check_sense_id(struct ccw_device *cdev)
CIO_MSG_EVENT(2, "SenseID : path %02X for device %04x on"
" subchannel %04x is 'not operational'\n",
sch->orb.lpm, cdev->private->devno,
- sch->irq);
+ sch->schid.sch_no);
return -EACCES;
}
/* Hmm, whatever happened, try again. */
CIO_MSG_EVENT(2, "SenseID : start_IO() for device %04x on "
"subchannel %04x returns status %02X%02X\n",
- cdev->private->devno, sch->irq,
+ cdev->private->devno, sch->schid.sch_no,
irb->scsw.dstat, irb->scsw.cstat);
return -EAGAIN;
}
diff --git a/drivers/s390/cio/device_ops.c b/drivers/s390/cio/device_ops.c
index 85a3026e6900..143b6c25a4e6 100644
--- a/drivers/s390/cio/device_ops.c
+++ b/drivers/s390/cio/device_ops.c
@@ -1,7 +1,7 @@
/*
* drivers/s390/cio/device_ops.c
*
- * $Revision: 1.57 $
+ * $Revision: 1.58 $
*
* Copyright (C) 2002 IBM Deutschland Entwicklung GmbH,
* IBM Corporation
@@ -570,7 +570,7 @@ ccw_device_get_chp_desc(struct ccw_device *cdev, int chp_no)
int
_ccw_device_get_subchannel_number(struct ccw_device *cdev)
{
- return cdev->private->irq;
+ return cdev->private->sch_no;
}
int
diff --git a/drivers/s390/cio/device_pgid.c b/drivers/s390/cio/device_pgid.c
index 757b2706d5a9..f08e84cc3563 100644
--- a/drivers/s390/cio/device_pgid.c
+++ b/drivers/s390/cio/device_pgid.c
@@ -59,7 +59,7 @@ __ccw_device_sense_pgid_start(struct ccw_device *cdev)
CIO_MSG_EVENT(2, "SNID - Device %04x on Subchannel "
"%04x, lpm %02X, became 'not "
"operational'\n",
- cdev->private->devno, sch->irq,
+ cdev->private->devno, sch->schid.sch_no,
cdev->private->imask);
}
@@ -121,13 +121,14 @@ __ccw_device_check_sense_pgid(struct ccw_device *cdev)
if (irb->scsw.cc == 3) {
CIO_MSG_EVENT(2, "SNID - Device %04x on Subchannel "
"%04x, lpm %02X, became 'not operational'\n",
- cdev->private->devno, sch->irq, sch->orb.lpm);
+ cdev->private->devno, sch->schid.sch_no,
+ sch->orb.lpm);
return -EACCES;
}
if (cdev->private->pgid.inf.ps.state2 == SNID_STATE2_RESVD_ELSE) {
CIO_MSG_EVENT(2, "SNID - Device %04x on Subchannel %04x "
"is reserved by someone else\n",
- cdev->private->devno, sch->irq);
+ cdev->private->devno, sch->schid.sch_no);
return -EUSERS;
}
return 0;
@@ -237,7 +238,7 @@ __ccw_device_do_pgid(struct ccw_device *cdev, __u8 func)
sch->vpm &= ~cdev->private->imask;
CIO_MSG_EVENT(2, "SPID - Device %04x on Subchannel "
"%04x, lpm %02X, became 'not operational'\n",
- cdev->private->devno, sch->irq, cdev->private->imask);
+ cdev->private->devno, sch->schid.sch_no, cdev->private->imask);
return ret;
}
@@ -271,7 +272,7 @@ __ccw_device_check_pgid(struct ccw_device *cdev)
if (irb->scsw.cc == 3) {
CIO_MSG_EVENT(2, "SPID - Device %04x on Subchannel "
"%04x, lpm %02X, became 'not operational'\n",
- cdev->private->devno, sch->irq,
+ cdev->private->devno, sch->schid.sch_no,
cdev->private->imask);
return -EACCES;
}
@@ -373,7 +374,7 @@ ccw_device_verify_start(struct ccw_device *cdev)
* Update sch->lpm with current values to catch paths becoming
* available again.
*/
- if (stsch(sch->irq, &sch->schib)) {
+ if (stsch(sch->schid, &sch->schib)) {
ccw_device_verify_done(cdev, -ENODEV);
return;
}
diff --git a/drivers/s390/cio/device_status.c b/drivers/s390/cio/device_status.c
index 12a24d4331a2..929f8fb505f2 100644
--- a/drivers/s390/cio/device_status.c
+++ b/drivers/s390/cio/device_status.c
@@ -38,13 +38,13 @@ ccw_device_msg_control_check(struct ccw_device *cdev, struct irb *irb)
"received"
" ... device %04X on subchannel %04X, dev_stat "
": %02X sch_stat : %02X\n",
- cdev->private->devno, cdev->private->irq,
+ cdev->private->devno, cdev->private->sch_no,
irb->scsw.dstat, irb->scsw.cstat);
if (irb->scsw.cc != 3) {
char dbf_text[15];
- sprintf(dbf_text, "chk%x", cdev->private->irq);
+ sprintf(dbf_text, "chk%x", cdev->private->sch_no);
CIO_TRACE_EVENT(0, dbf_text);
CIO_HEX_EVENT(0, irb, sizeof (struct irb));
}
@@ -59,10 +59,10 @@ ccw_device_path_notoper(struct ccw_device *cdev)
struct subchannel *sch;
sch = to_subchannel(cdev->dev.parent);
- stsch (sch->irq, &sch->schib);
+ stsch (sch->schid, &sch->schib);
CIO_MSG_EVENT(0, "%s(%04x) - path(s) %02x are "
- "not operational \n", __FUNCTION__, sch->irq,
+ "not operational \n", __FUNCTION__, sch->schid.sch_no,
sch->schib.pmcw.pnom);
sch->lpm &= ~sch->schib.pmcw.pnom;
diff --git a/drivers/s390/cio/ioasm.h b/drivers/s390/cio/ioasm.h
index 45480a2bc4c0..66c882e52f32 100644
--- a/drivers/s390/cio/ioasm.h
+++ b/drivers/s390/cio/ioasm.h
@@ -1,12 +1,13 @@
#ifndef S390_CIO_IOASM_H
#define S390_CIO_IOASM_H
+#include "schid.h"
+
/*
* TPI info structure
*/
struct tpi_info {
- __u32 reserved1 : 16; /* reserved 0x00000001 */
- __u32 irq : 16; /* aka. subchannel number */
+ struct subchannel_id schid;
__u32 intparm; /* interruption parameter */
__u32 adapter_IO : 1;
__u32 reserved2 : 1;
@@ -21,7 +22,8 @@ struct tpi_info {
* Some S390 specific IO instructions as inline
*/
-static inline int stsch(int irq, volatile struct schib *addr)
+static inline int stsch(struct subchannel_id schid,
+ volatile struct schib *addr)
{
int ccode;
@@ -31,12 +33,13 @@ static inline int stsch(int irq, volatile struct schib *addr)
" ipm %0\n"
" srl %0,28"
: "=d" (ccode)
- : "d" (irq | 0x10000), "a" (addr)
+ : "d" (schid), "a" (addr), "m" (*addr)
: "cc", "1" );
return ccode;
}
-static inline int msch(int irq, volatile struct schib *addr)
+static inline int msch(struct subchannel_id schid,
+ volatile struct schib *addr)
{
int ccode;
@@ -46,12 +49,13 @@ static inline int msch(int irq, volatile struct schib *addr)
" ipm %0\n"
" srl %0,28"
: "=d" (ccode)
- : "d" (irq | 0x10000L), "a" (addr)
+ : "d" (schid), "a" (addr), "m" (*addr)
: "cc", "1" );
return ccode;
}
-static inline int msch_err(int irq, volatile struct schib *addr)
+static inline int msch_err(struct subchannel_id schid,
+ volatile struct schib *addr)
{
int ccode;
@@ -74,12 +78,13 @@ static inline int msch_err(int irq, volatile struct schib *addr)
".previous"
#endif
: "=&d" (ccode)
- : "d" (irq | 0x10000L), "a" (addr), "K" (-EIO)
+ : "d" (schid), "a" (addr), "K" (-EIO), "m" (*addr)
: "cc", "1" );
return ccode;
}
-static inline int tsch(int irq, volatile struct irb *addr)
+static inline int tsch(struct subchannel_id schid,
+ volatile struct irb *addr)
{
int ccode;
@@ -89,7 +94,7 @@ static inline int tsch(int irq, volatile struct irb *addr)
" ipm %0\n"
" srl %0,28"
: "=d" (ccode)
- : "d" (irq | 0x10000L), "a" (addr)
+ : "d" (schid), "a" (addr), "m" (*addr)
: "cc", "1" );
return ccode;
}
@@ -103,12 +108,13 @@ static inline int tpi( volatile struct tpi_info *addr)
" ipm %0\n"
" srl %0,28"
: "=d" (ccode)
- : "a" (addr)
+ : "a" (addr), "m" (*addr)
: "cc", "1" );
return ccode;
}
-static inline int ssch(int irq, volatile struct orb *addr)
+static inline int ssch(struct subchannel_id schid,
+ volatile struct orb *addr)
{
int ccode;
@@ -118,12 +124,12 @@ static inline int ssch(int irq, volatile struct orb *addr)
" ipm %0\n"
" srl %0,28"
: "=d" (ccode)
- : "d" (irq | 0x10000L), "a" (addr)
+ : "d" (schid), "a" (addr), "m" (*addr)
: "cc", "1" );
return ccode;
}
-static inline int rsch(int irq)
+static inline int rsch(struct subchannel_id schid)
{
int ccode;
@@ -133,12 +139,12 @@ static inline int rsch(int irq)
" ipm %0\n"
" srl %0,28"
: "=d" (ccode)
- : "d" (irq | 0x10000L)
+ : "d" (schid)
: "cc", "1" );
return ccode;
}
-static inline int csch(int irq)
+static inline int csch(struct subchannel_id schid)
{
int ccode;
@@ -148,12 +154,12 @@ static inline int csch(int irq)
" ipm %0\n"
" srl %0,28"
: "=d" (ccode)
- : "d" (irq | 0x10000L)
+ : "d" (schid)
: "cc", "1" );
return ccode;
}
-static inline int hsch(int irq)
+static inline int hsch(struct subchannel_id schid)
{
int ccode;
@@ -163,12 +169,12 @@ static inline int hsch(int irq)
" ipm %0\n"
" srl %0,28"
: "=d" (ccode)
- : "d" (irq | 0x10000L)
+ : "d" (schid)
: "cc", "1" );
return ccode;
}
-static inline int xsch(int irq)
+static inline int xsch(struct subchannel_id schid)
{
int ccode;
@@ -178,21 +184,22 @@ static inline int xsch(int irq)
" ipm %0\n"
" srl %0,28"
: "=d" (ccode)
- : "d" (irq | 0x10000L)
+ : "d" (schid)
: "cc", "1" );
return ccode;
}
static inline int chsc(void *chsc_area)
{
+ typedef struct { char _[4096]; } addr_type;
int cc;
__asm__ __volatile__ (
- ".insn rre,0xb25f0000,%1,0 \n\t"
+ ".insn rre,0xb25f0000,%2,0 \n\t"
"ipm %0 \n\t"
"srl %0,28 \n\t"
- : "=d" (cc)
- : "d" (chsc_area)
+ : "=d" (cc), "=m" (*(addr_type *) chsc_area)
+ : "d" (chsc_area), "m" (*(addr_type *) chsc_area)
: "cc" );
return cc;
diff --git a/drivers/s390/cio/qdio.c b/drivers/s390/cio/qdio.c
index e8bdfcd1d02a..5c7001b5c7a1 100644
--- a/drivers/s390/cio/qdio.c
+++ b/drivers/s390/cio/qdio.c
@@ -270,7 +270,7 @@ qdio_siga_sync(struct qdio_q *q, unsigned int gpr2,
perf_stats.siga_syncs++;
#endif /* QDIO_PERFORMANCE_STATS */
- cc = do_siga_sync(0x10000|q->irq, gpr2, gpr3);
+ cc = do_siga_sync(q->schid, gpr2, gpr3);
if (cc)
QDIO_DBF_HEX3(0,trace,&cc,sizeof(int*));
@@ -290,12 +290,16 @@ __do_siga_output(struct qdio_q *q, unsigned int *busy_bit)
{
struct qdio_irq *irq;
unsigned int fc = 0;
+ unsigned long schid;
irq = (struct qdio_irq *) q->irq_ptr;
if (!irq->is_qebsm)
- return do_siga_output(0x10000|q->irq, q->mask, busy_bit, fc);
- fc |= 0x80;
- return do_siga_output(irq->sch_token, q->mask, busy_bit, fc);
+ schid = *((u32 *)&q->schid);
+ else {
+ schid = irq->sch_token;
+ fc |= 0x80;
+ }
+ return do_siga_output(schid, q->mask, busy_bit, fc);
}
/*
@@ -349,7 +353,7 @@ qdio_siga_input(struct qdio_q *q)
perf_stats.siga_ins++;
#endif /* QDIO_PERFORMANCE_STATS */
- cc = do_siga_input(0x10000|q->irq, q->mask);
+ cc = do_siga_input(q->schid, q->mask);
if (cc)
QDIO_DBF_HEX3(0,trace,&cc,sizeof(int*));
@@ -855,7 +859,7 @@ qdio_kick_outbound_q(struct qdio_q *q)
/* went smooth this time, reset timestamp */
#ifdef CONFIG_QDIO_DEBUG
QDIO_DBF_TEXT3(0,trace,"cc2reslv");
- sprintf(dbf_text,"%4x%2x%2x",q->irq,q->q_no,
+ sprintf(dbf_text,"%4x%2x%2x",q->schid.sch_no,q->q_no,
atomic_read(&q->busy_siga_counter));
QDIO_DBF_TEXT3(0,trace,dbf_text);
#endif /* CONFIG_QDIO_DEBUG */
@@ -878,7 +882,7 @@ qdio_kick_outbound_q(struct qdio_q *q)
}
QDIO_DBF_TEXT2(0,trace,"cc2REPRT");
#ifdef CONFIG_QDIO_DEBUG
- sprintf(dbf_text,"%4x%2x%2x",q->irq,q->q_no,
+ sprintf(dbf_text,"%4x%2x%2x",q->schid.sch_no,q->q_no,
atomic_read(&q->busy_siga_counter));
QDIO_DBF_TEXT3(0,trace,dbf_text);
#endif /* CONFIG_QDIO_DEBUG */
@@ -1733,7 +1737,7 @@ qdio_fill_qs(struct qdio_irq *irq_ptr, struct ccw_device *cdev,
void *ptr;
int available;
- sprintf(dbf_text,"qfqs%4x",cdev->private->irq);
+ sprintf(dbf_text,"qfqs%4x",cdev->private->sch_no);
QDIO_DBF_TEXT0(0,setup,dbf_text);
for (i=0;i<no_input_qs;i++) {
q=irq_ptr->input_qs[i];
@@ -1753,7 +1757,7 @@ qdio_fill_qs(struct qdio_irq *irq_ptr, struct ccw_device *cdev,
q->queue_type=q_format;
q->int_parm=int_parm;
- q->irq=irq_ptr->irq;
+ q->schid = irq_ptr->schid;
q->irq_ptr = irq_ptr;
q->cdev = cdev;
q->mask=1<<(31-i);
@@ -1826,7 +1830,7 @@ qdio_fill_qs(struct qdio_irq *irq_ptr, struct ccw_device *cdev,
q->queue_type=q_format;
q->int_parm=int_parm;
q->is_input_q=0;
- q->irq=irq_ptr->irq;
+ q->schid = irq_ptr->schid;
q->cdev = cdev;
q->irq_ptr = irq_ptr;
q->mask=1<<(31-i);
@@ -1933,7 +1937,7 @@ qdio_set_state(struct qdio_irq *irq_ptr, enum qdio_irq_states state)
char dbf_text[15];
QDIO_DBF_TEXT5(0,trace,"newstate");
- sprintf(dbf_text,"%4x%4x",irq_ptr->irq,state);
+ sprintf(dbf_text,"%4x%4x",irq_ptr->schid.sch_no,state);
QDIO_DBF_TEXT5(0,trace,dbf_text);
#endif /* CONFIG_QDIO_DEBUG */
@@ -1946,12 +1950,12 @@ qdio_set_state(struct qdio_irq *irq_ptr, enum qdio_irq_states state)
}
static inline void
-qdio_irq_check_sense(int irq, struct irb *irb)
+qdio_irq_check_sense(struct subchannel_id schid, struct irb *irb)
{
char dbf_text[15];
if (irb->esw.esw0.erw.cons) {
- sprintf(dbf_text,"sens%4x",irq);
+ sprintf(dbf_text,"sens%4x",schid.sch_no);
QDIO_DBF_TEXT2(1,trace,dbf_text);
QDIO_DBF_HEX0(0,sense,irb,QDIO_DBF_SENSE_LEN);
@@ -2063,20 +2067,20 @@ qdio_timeout_handler(struct ccw_device *cdev)
switch (irq_ptr->state) {
case QDIO_IRQ_STATE_INACTIVE:
QDIO_PRINT_ERR("establish queues on irq %04x: timed out\n",
- irq_ptr->irq);
+ irq_ptr->schid.sch_no);
QDIO_DBF_TEXT2(1,setup,"eq:timeo");
qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ERR);
break;
case QDIO_IRQ_STATE_CLEANUP:
QDIO_PRINT_INFO("Did not get interrupt on cleanup, irq=0x%x.\n",
- irq_ptr->irq);
+ irq_ptr->schid.sch_no);
qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ERR);
break;
case QDIO_IRQ_STATE_ESTABLISHED:
case QDIO_IRQ_STATE_ACTIVE:
/* I/O has been terminated by common I/O layer. */
QDIO_PRINT_INFO("Queues on irq %04x killed by cio.\n",
- irq_ptr->irq);
+ irq_ptr->schid.sch_no);
QDIO_DBF_TEXT2(1, trace, "cio:term");
qdio_set_state(irq_ptr, QDIO_IRQ_STATE_STOPPED);
if (get_device(&cdev->dev)) {
@@ -2139,7 +2143,7 @@ qdio_handler(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
}
}
- qdio_irq_check_sense(irq_ptr->irq, irb);
+ qdio_irq_check_sense(irq_ptr->schid, irb);
#ifdef CONFIG_QDIO_DEBUG
sprintf(dbf_text, "state:%d", irq_ptr->state);
@@ -2195,7 +2199,7 @@ qdio_synchronize(struct ccw_device *cdev, unsigned int flags,
return -ENODEV;
#ifdef CONFIG_QDIO_DEBUG
- *((int*)(&dbf_text[4])) = irq_ptr->irq;
+ *((int*)(&dbf_text[4])) = irq_ptr->schid.sch_no;
QDIO_DBF_HEX4(0,trace,dbf_text,QDIO_DBF_TRACE_LEN);
*((int*)(&dbf_text[0]))=flags;
*((int*)(&dbf_text[4]))=queue_number;
@@ -2207,13 +2211,13 @@ qdio_synchronize(struct ccw_device *cdev, unsigned int flags,
if (!q)
return -EINVAL;
if (!(irq_ptr->is_qebsm))
- cc = do_siga_sync(0x10000|q->irq, 0, q->mask);
+ cc = do_siga_sync(q->schid, 0, q->mask);
} else if (flags&QDIO_FLAG_SYNC_OUTPUT) {
q=irq_ptr->output_qs[queue_number];
if (!q)
return -EINVAL;
if (!(irq_ptr->is_qebsm))
- cc = do_siga_sync(0x10000|q->irq, q->mask, 0);
+ cc = do_siga_sync(q->schid, q->mask, 0);
} else
return -EINVAL;
@@ -2298,7 +2302,7 @@ qdio_get_ssqd_information(struct qdio_irq *irq_ptr)
ssqd_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
if (!ssqd_area) {
QDIO_PRINT_WARN("Could not get memory for chsc. Using all " \
- "SIGAs for sch x%x.\n", irq_ptr->irq);
+ "SIGAs for sch x%x.\n", irq_ptr->schid.sch_no);
irq_ptr->qdioac = CHSC_FLAG_SIGA_INPUT_NECESSARY ||
CHSC_FLAG_SIGA_OUTPUT_NECESSARY ||
CHSC_FLAG_SIGA_SYNC_NECESSARY; /* all flags set */
@@ -2312,14 +2316,14 @@ qdio_get_ssqd_information(struct qdio_irq *irq_ptr)
.length = 0x0010,
.code = 0x0024,
};
- ssqd_area->first_sch = irq_ptr->irq;
- ssqd_area->last_sch = irq_ptr->irq;
+ ssqd_area->first_sch = irq_ptr->schid.sch_no;
+ ssqd_area->last_sch = irq_ptr->schid.sch_no;
result = chsc(ssqd_area);
if (result) {
QDIO_PRINT_WARN("CHSC returned cc %i. Using all " \
"SIGAs for sch x%x.\n",
- result, irq_ptr->irq);
+ result, irq_ptr->schid.sch_no);
qdioac = CHSC_FLAG_SIGA_INPUT_NECESSARY ||
CHSC_FLAG_SIGA_OUTPUT_NECESSARY ||
CHSC_FLAG_SIGA_SYNC_NECESSARY; /* all flags set */
@@ -2330,7 +2334,7 @@ qdio_get_ssqd_information(struct qdio_irq *irq_ptr)
if (ssqd_area->response.code != QDIO_CHSC_RESPONSE_CODE_OK) {
QDIO_PRINT_WARN("response upon checking SIGA needs " \
"is 0x%x. Using all SIGAs for sch x%x.\n",
- ssqd_area->response.code, irq_ptr->irq);
+ ssqd_area->response.code, irq_ptr->schid.sch_no);
qdioac = CHSC_FLAG_SIGA_INPUT_NECESSARY ||
CHSC_FLAG_SIGA_OUTPUT_NECESSARY ||
CHSC_FLAG_SIGA_SYNC_NECESSARY; /* all flags set */
@@ -2339,9 +2343,9 @@ qdio_get_ssqd_information(struct qdio_irq *irq_ptr)
}
if (!(ssqd_area->flags & CHSC_FLAG_QDIO_CAPABILITY) ||
!(ssqd_area->flags & CHSC_FLAG_VALIDITY) ||
- (ssqd_area->sch != irq_ptr->irq)) {
+ (ssqd_area->sch != irq_ptr->schid.sch_no)) {
QDIO_PRINT_WARN("huh? problems checking out sch x%x... " \
- "using all SIGAs.\n",irq_ptr->irq);
+ "using all SIGAs.\n",irq_ptr->schid.sch_no);
qdioac = CHSC_FLAG_SIGA_INPUT_NECESSARY |
CHSC_FLAG_SIGA_OUTPUT_NECESSARY |
CHSC_FLAG_SIGA_SYNC_NECESSARY; /* worst case */
@@ -2427,7 +2431,7 @@ tiqdio_set_subchannel_ind(struct qdio_irq *irq_ptr, int reset_to_zero)
/* set to 0x10000000 to enable
* time delay disablement facility */
u32 reserved5;
- u32 subsystem_id;
+ struct subchannel_id schid;
u32 reserved6[1004];
struct chsc_header response;
u32 reserved7;
@@ -2449,7 +2453,7 @@ tiqdio_set_subchannel_ind(struct qdio_irq *irq_ptr, int reset_to_zero)
scssc_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
if (!scssc_area) {
QDIO_PRINT_WARN("No memory for setting indicators on " \
- "subchannel x%x.\n", irq_ptr->irq);
+ "subchannel x%x.\n", irq_ptr->schid.sch_no);
return -ENOMEM;
}
scssc_area->request = (struct chsc_header) {
@@ -2463,7 +2467,7 @@ tiqdio_set_subchannel_ind(struct qdio_irq *irq_ptr, int reset_to_zero)
scssc_area->ks = QDIO_STORAGE_KEY;
scssc_area->kc = QDIO_STORAGE_KEY;
scssc_area->isc = TIQDIO_THININT_ISC;
- scssc_area->subsystem_id = (1<<16) + irq_ptr->irq;
+ scssc_area->schid = irq_ptr->schid;
/* enables the time delay disablement facility. Don't care
* whether it is really there (i.e. we haven't checked for
* it) */
@@ -2473,12 +2477,10 @@ tiqdio_set_subchannel_ind(struct qdio_irq *irq_ptr, int reset_to_zero)
QDIO_PRINT_WARN("Time delay disablement facility " \
"not available\n");
-
-
result = chsc(scssc_area);
if (result) {
QDIO_PRINT_WARN("could not set indicators on irq x%x, " \
- "cc=%i.\n",irq_ptr->irq,result);
+ "cc=%i.\n",irq_ptr->schid.sch_no,result);
result = -EIO;
goto out;
}
@@ -2534,7 +2536,7 @@ tiqdio_set_delay_target(struct qdio_irq *irq_ptr, unsigned long delay_target)
scsscf_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
if (!scsscf_area) {
QDIO_PRINT_WARN("No memory for setting delay target on " \
- "subchannel x%x.\n", irq_ptr->irq);
+ "subchannel x%x.\n", irq_ptr->schid.sch_no);
return -ENOMEM;
}
scsscf_area->request = (struct chsc_header) {
@@ -2547,7 +2549,8 @@ tiqdio_set_delay_target(struct qdio_irq *irq_ptr, unsigned long delay_target)
result=chsc(scsscf_area);
if (result) {
QDIO_PRINT_WARN("could not set delay target on irq x%x, " \
- "cc=%i. Continuing.\n",irq_ptr->irq,result);
+ "cc=%i. Continuing.\n",irq_ptr->schid.sch_no,
+ result);
result = -EIO;
goto out;
}
@@ -2581,7 +2584,7 @@ qdio_cleanup(struct ccw_device *cdev, int how)
if (!irq_ptr)
return -ENODEV;
- sprintf(dbf_text,"qcln%4x",irq_ptr->irq);
+ sprintf(dbf_text,"qcln%4x",irq_ptr->schid.sch_no);
QDIO_DBF_TEXT1(0,trace,dbf_text);
QDIO_DBF_TEXT0(0,setup,dbf_text);
@@ -2608,7 +2611,7 @@ qdio_shutdown(struct ccw_device *cdev, int how)
down(&irq_ptr->setting_up_sema);
- sprintf(dbf_text,"qsqs%4x",irq_ptr->irq);
+ sprintf(dbf_text,"qsqs%4x",irq_ptr->schid.sch_no);
QDIO_DBF_TEXT1(0,trace,dbf_text);
QDIO_DBF_TEXT0(0,setup,dbf_text);
@@ -2714,7 +2717,7 @@ qdio_free(struct ccw_device *cdev)
down(&irq_ptr->setting_up_sema);
- sprintf(dbf_text,"qfqs%4x",irq_ptr->irq);
+ sprintf(dbf_text,"qfqs%4x",irq_ptr->schid.sch_no);
QDIO_DBF_TEXT1(0,trace,dbf_text);
QDIO_DBF_TEXT0(0,setup,dbf_text);
@@ -2862,13 +2865,13 @@ qdio_establish_irq_check_for_errors(struct ccw_device *cdev, int cstat,
irq_ptr = cdev->private->qdio_data;
if (cstat || (dstat & ~(DEV_STAT_CHN_END|DEV_STAT_DEV_END))) {
- sprintf(dbf_text,"ick1%4x",irq_ptr->irq);
+ sprintf(dbf_text,"ick1%4x",irq_ptr->schid.sch_no);
QDIO_DBF_TEXT2(1,trace,dbf_text);
QDIO_DBF_HEX2(0,trace,&dstat,sizeof(int));
QDIO_DBF_HEX2(0,trace,&cstat,sizeof(int));
QDIO_PRINT_ERR("received check condition on establish " \
"queues on irq 0x%x (cs=x%x, ds=x%x).\n",
- irq_ptr->irq,cstat,dstat);
+ irq_ptr->schid.sch_no,cstat,dstat);
qdio_set_state(irq_ptr,QDIO_IRQ_STATE_ERR);
}
@@ -2878,7 +2881,7 @@ qdio_establish_irq_check_for_errors(struct ccw_device *cdev, int cstat,
QDIO_DBF_HEX2(0,setup,&cstat, sizeof(cstat));
QDIO_PRINT_ERR("establish queues on irq %04x: didn't get "
"device end: dstat=%02x, cstat=%02x\n",
- irq_ptr->irq, dstat, cstat);
+ irq_ptr->schid.sch_no, dstat, cstat);
qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ERR);
return 1;
}
@@ -2890,7 +2893,7 @@ qdio_establish_irq_check_for_errors(struct ccw_device *cdev, int cstat,
QDIO_PRINT_ERR("establish queues on irq %04x: got "
"the following devstat: dstat=%02x, "
"cstat=%02x\n",
- irq_ptr->irq, dstat, cstat);
+ irq_ptr->schid.sch_no, dstat, cstat);
qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ERR);
return 1;
}
@@ -2905,7 +2908,7 @@ qdio_establish_handle_irq(struct ccw_device *cdev, int cstat, int dstat)
irq_ptr = cdev->private->qdio_data;
- sprintf(dbf_text,"qehi%4x",cdev->private->irq);
+ sprintf(dbf_text,"qehi%4x",cdev->private->sch_no);
QDIO_DBF_TEXT0(0,setup,dbf_text);
QDIO_DBF_TEXT0(0,trace,dbf_text);
@@ -2924,7 +2927,7 @@ qdio_initialize(struct qdio_initialize *init_data)
int rc;
char dbf_text[15];
- sprintf(dbf_text,"qini%4x",init_data->cdev->private->irq);
+ sprintf(dbf_text,"qini%4x",init_data->cdev->private->sch_no);
QDIO_DBF_TEXT0(0,setup,dbf_text);
QDIO_DBF_TEXT0(0,trace,dbf_text);
@@ -2945,7 +2948,7 @@ qdio_allocate(struct qdio_initialize *init_data)
struct qdio_irq *irq_ptr;
char dbf_text[15];
- sprintf(dbf_text,"qalc%4x",init_data->cdev->private->irq);
+ sprintf(dbf_text,"qalc%4x",init_data->cdev->private->sch_no);
QDIO_DBF_TEXT0(0,setup,dbf_text);
QDIO_DBF_TEXT0(0,trace,dbf_text);
if ( (init_data->no_input_qs>QDIO_MAX_QUEUES_PER_IRQ) ||
@@ -3018,7 +3021,7 @@ int qdio_fill_irq(struct qdio_initialize *init_data)
irq_ptr->int_parm=init_data->int_parm;
- irq_ptr->irq = init_data->cdev->private->irq;
+ irq_ptr->schid = ccw_device_get_subchannel_id(init_data->cdev);
irq_ptr->no_input_qs=init_data->no_input_qs;
irq_ptr->no_output_qs=init_data->no_output_qs;
@@ -3038,7 +3041,7 @@ int qdio_fill_irq(struct qdio_initialize *init_data)
QDIO_DBF_HEX1(0,setup,&irq_ptr->dev_st_chg_ind,sizeof(void*));
if (!irq_ptr->dev_st_chg_ind) {
QDIO_PRINT_WARN("no indicator location available " \
- "for irq 0x%x\n",irq_ptr->irq);
+ "for irq 0x%x\n",irq_ptr->schid.sch_no);
qdio_release_irq_memory(irq_ptr);
return -ENOBUFS;
}
@@ -3169,7 +3172,7 @@ qdio_establish(struct qdio_initialize *init_data)
tiqdio_set_delay_target(irq_ptr,TIQDIO_DELAY_TARGET);
}
- sprintf(dbf_text,"qest%4x",cdev->private->irq);
+ sprintf(dbf_text,"qest%4x",cdev->private->sch_no);
QDIO_DBF_TEXT0(0,setup,dbf_text);
QDIO_DBF_TEXT0(0,trace,dbf_text);
@@ -3197,7 +3200,7 @@ qdio_establish(struct qdio_initialize *init_data)
}
QDIO_PRINT_WARN("establish queues on irq %04x: do_IO " \
"returned %i, next try returned %i\n",
- irq_ptr->irq,result,result2);
+ irq_ptr->schid.sch_no,result,result2);
result=result2;
if (result)
ccw_device_set_timeout(cdev, 0);
@@ -3270,7 +3273,7 @@ qdio_activate(struct ccw_device *cdev, int flags)
goto out;
}
- sprintf(dbf_text,"qact%4x", irq_ptr->irq);
+ sprintf(dbf_text,"qact%4x", irq_ptr->schid.sch_no);
QDIO_DBF_TEXT2(0,setup,dbf_text);
QDIO_DBF_TEXT2(0,trace,dbf_text);
@@ -3297,7 +3300,7 @@ qdio_activate(struct ccw_device *cdev, int flags)
}
QDIO_PRINT_WARN("activate queues on irq %04x: do_IO " \
"returned %i, next try returned %i\n",
- irq_ptr->irq,result,result2);
+ irq_ptr->schid.sch_no,result,result2);
result=result2;
}
@@ -3509,7 +3512,7 @@ do_QDIO(struct ccw_device *cdev,unsigned int callflags,
#ifdef CONFIG_QDIO_DEBUG
char dbf_text[20];
- sprintf(dbf_text,"doQD%04x",cdev->private->irq);
+ sprintf(dbf_text,"doQD%04x",cdev->private->sch_no);
QDIO_DBF_TEXT3(0,trace,dbf_text);
#endif /* CONFIG_QDIO_DEBUG */
diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h
index b5d303e79a24..43b840af5300 100644
--- a/drivers/s390/cio/qdio.h
+++ b/drivers/s390/cio/qdio.h
@@ -3,7 +3,9 @@
#include <asm/page.h>
-#define VERSION_CIO_QDIO_H "$Revision: 1.37 $"
+#include "schid.h"
+
+#define VERSION_CIO_QDIO_H "$Revision: 1.40 $"
#ifdef CONFIG_QDIO_DEBUG
#define QDIO_VERBOSE_LEVEL 9
@@ -317,7 +319,7 @@ do_eqbs(unsigned long sch, unsigned char *state, int queue,
static inline int
-do_siga_sync(unsigned int irq, unsigned int mask1, unsigned int mask2)
+do_siga_sync(struct subchannel_id schid, unsigned int mask1, unsigned int mask2)
{
int cc;
@@ -331,7 +333,7 @@ do_siga_sync(unsigned int irq, unsigned int mask1, unsigned int mask2)
"ipm %0 \n\t"
"srl %0,28 \n\t"
: "=d" (cc)
- : "d" (irq), "d" (mask1), "d" (mask2)
+ : "d" (schid), "d" (mask1), "d" (mask2)
: "cc", "0", "1", "2", "3"
);
#else /* CONFIG_ARCH_S390X */
@@ -344,7 +346,7 @@ do_siga_sync(unsigned int irq, unsigned int mask1, unsigned int mask2)
"ipm %0 \n\t"
"srl %0,28 \n\t"
: "=d" (cc)
- : "d" (irq), "d" (mask1), "d" (mask2)
+ : "d" (schid), "d" (mask1), "d" (mask2)
: "cc", "0", "1", "2", "3"
);
#endif /* CONFIG_ARCH_S390X */
@@ -352,7 +354,7 @@ do_siga_sync(unsigned int irq, unsigned int mask1, unsigned int mask2)
}
static inline int
-do_siga_input(unsigned int irq, unsigned int mask)
+do_siga_input(struct subchannel_id schid, unsigned int mask)
{
int cc;
@@ -365,7 +367,7 @@ do_siga_input(unsigned int irq, unsigned int mask)
"ipm %0 \n\t"
"srl %0,28 \n\t"
: "=d" (cc)
- : "d" (irq), "d" (mask)
+ : "d" (schid), "d" (mask)
: "cc", "0", "1", "2", "memory"
);
#else /* CONFIG_ARCH_S390X */
@@ -377,7 +379,7 @@ do_siga_input(unsigned int irq, unsigned int mask)
"ipm %0 \n\t"
"srl %0,28 \n\t"
: "=d" (cc)
- : "d" (irq), "d" (mask)
+ : "d" (schid), "d" (mask)
: "cc", "0", "1", "2", "memory"
);
#endif /* CONFIG_ARCH_S390X */
@@ -386,7 +388,7 @@ do_siga_input(unsigned int irq, unsigned int mask)
}
static inline int
-do_siga_output(unsigned long irq, unsigned long mask, __u32 *bb,
+do_siga_output(unsigned long schid, unsigned long mask, __u32 *bb,
unsigned int fc)
{
int cc;
@@ -418,7 +420,7 @@ do_siga_output(unsigned long irq, unsigned long mask, __u32 *bb,
".long 0b,2b \n\t"
".previous \n\t"
: "=d" (cc), "=d" (busy_bit)
- : "d" (irq), "d" (mask),
+ : "d" (schid), "d" (mask),
"i" (QDIO_SIGA_ERROR_ACCESS_EXCEPTION)
: "cc", "0", "1", "2", "memory"
);
@@ -443,7 +445,7 @@ do_siga_output(unsigned long irq, unsigned long mask, __u32 *bb,
".quad 0b,1b \n\t"
".previous \n\t"
: "=d" (cc), "=d" (busy_bit)
- : "d" (irq), "d" (mask),
+ : "d" (schid), "d" (mask),
"i" (QDIO_SIGA_ERROR_ACCESS_EXCEPTION), "d" (fc)
: "cc", "0", "1", "2", "memory"
);
@@ -554,7 +556,7 @@ struct qdio_q {
__u32 * dev_st_chg_ind;
int is_input_q;
- int irq;
+ struct subchannel_id schid;
struct ccw_device *cdev;
unsigned int is_iqdio_q;
@@ -649,7 +651,7 @@ struct qdio_irq {
__u32 * volatile dev_st_chg_ind;
unsigned long int_parm;
- int irq;
+ struct subchannel_id schid;
unsigned int is_iqdio_irq;
unsigned int is_thinint_irq;
diff --git a/drivers/s390/cio/schid.h b/drivers/s390/cio/schid.h
new file mode 100644
index 000000000000..220d97882341
--- /dev/null
+++ b/drivers/s390/cio/schid.h
@@ -0,0 +1,25 @@
+#ifndef S390_SCHID_H
+#define S390_SCHID_H
+
+struct subchannel_id {
+ __u32 reserved:15;
+ __u32 one:1;
+ __u32 sch_no:16;
+} __attribute__ ((packed,aligned(4)));
+
+
+/* Helper function for sane state of pre-allocated subchannel_id. */
+static inline void
+init_subchannel_id(struct subchannel_id *schid)
+{
+ memset(schid, 0, sizeof(struct subchannel_id));
+ schid->one = 1;
+}
+
+static inline int
+schid_equal(struct subchannel_id *schid1, struct subchannel_id *schid2)
+{
+ return !memcmp(schid1, schid2, sizeof(struct subchannel_id));
+}
+
+#endif /* S390_SCHID_H */
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-12 08:03:49 +0000