[PATCH] s390: multiple subchannel sets support
Add support for multiple subchannel sets. Works with arbitrary devices in
subchannel set 1 and is transparent to device drivers. Although currently
only two subchannel sets are available, this will work with the architectured
maximum number of subchannel sets as well.
Signed-off-by: Cornelia Huck <cohuck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/s390/cio/qdio.c b/drivers/s390/cio/qdio.c
index 5c7001b5..035c77a 100644
--- a/drivers/s390/cio/qdio.c
+++ b/drivers/s390/cio/qdio.c
@@ -56,7 +56,7 @@
#include "ioasm.h"
#include "chsc.h"
-#define VERSION_QDIO_C "$Revision: 1.113 $"
+#define VERSION_QDIO_C "$Revision: 1.114 $"
/****************** MODULE PARAMETER VARIABLES ********************/
MODULE_AUTHOR("Utz Bacher <utz.bacher@de.ibm.com>");
@@ -2066,21 +2066,22 @@
switch (irq_ptr->state) {
case QDIO_IRQ_STATE_INACTIVE:
- QDIO_PRINT_ERR("establish queues on irq %04x: timed out\n",
- irq_ptr->schid.sch_no);
+ QDIO_PRINT_ERR("establish queues on irq 0.%x.%04x: timed out\n",
+ irq_ptr->schid.ssid, 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->schid.sch_no);
+ QDIO_PRINT_INFO("Did not get interrupt on cleanup, "
+ "irq=0.%x.%x.\n",
+ irq_ptr->schid.ssid, 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->schid.sch_no);
+ QDIO_PRINT_INFO("Queues on irq 0.%x.%04x killed by cio.\n",
+ irq_ptr->schid.ssid, 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)) {
@@ -2273,7 +2274,9 @@
unsigned char qdioac;
struct {
struct chsc_header request;
- u16 reserved1;
+ u16 reserved1:10;
+ u16 ssid:2;
+ u16 fmt:4;
u16 first_sch;
u16 reserved2;
u16 last_sch;
@@ -2318,12 +2321,13 @@
};
ssqd_area->first_sch = irq_ptr->schid.sch_no;
ssqd_area->last_sch = irq_ptr->schid.sch_no;
+ ssqd_area->ssid = irq_ptr->schid.ssid;
result = chsc(ssqd_area);
if (result) {
QDIO_PRINT_WARN("CHSC returned cc %i. Using all " \
- "SIGAs for sch x%x.\n",
- result, irq_ptr->schid.sch_no);
+ "SIGAs for sch 0.%x.%x.\n", result,
+ irq_ptr->schid.ssid, irq_ptr->schid.sch_no);
qdioac = CHSC_FLAG_SIGA_INPUT_NECESSARY ||
CHSC_FLAG_SIGA_OUTPUT_NECESSARY ||
CHSC_FLAG_SIGA_SYNC_NECESSARY; /* all flags set */
@@ -2333,8 +2337,9 @@
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->schid.sch_no);
+ "is 0x%x. Using all SIGAs for sch 0.%x.%x.\n",
+ ssqd_area->response.code,
+ irq_ptr->schid.ssid, irq_ptr->schid.sch_no);
qdioac = CHSC_FLAG_SIGA_INPUT_NECESSARY ||
CHSC_FLAG_SIGA_OUTPUT_NECESSARY ||
CHSC_FLAG_SIGA_SYNC_NECESSARY; /* all flags set */
@@ -2344,8 +2349,9 @@
if (!(ssqd_area->flags & CHSC_FLAG_QDIO_CAPABILITY) ||
!(ssqd_area->flags & CHSC_FLAG_VALIDITY) ||
(ssqd_area->sch != irq_ptr->schid.sch_no)) {
- QDIO_PRINT_WARN("huh? problems checking out sch x%x... " \
- "using all SIGAs.\n",irq_ptr->schid.sch_no);
+ QDIO_PRINT_WARN("huh? problems checking out sch 0.%x.%x... " \
+ "using all SIGAs.\n",
+ irq_ptr->schid.ssid, irq_ptr->schid.sch_no);
qdioac = CHSC_FLAG_SIGA_INPUT_NECESSARY |
CHSC_FLAG_SIGA_OUTPUT_NECESSARY |
CHSC_FLAG_SIGA_SYNC_NECESSARY; /* worst case */
@@ -2453,7 +2459,8 @@
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->schid.sch_no);
+ "subchannel 0.%x.%x.\n",
+ irq_ptr->schid.ssid, irq_ptr->schid.sch_no);
return -ENOMEM;
}
scssc_area->request = (struct chsc_header) {
@@ -2479,8 +2486,9 @@
result = chsc(scssc_area);
if (result) {
- QDIO_PRINT_WARN("could not set indicators on irq x%x, " \
- "cc=%i.\n",irq_ptr->schid.sch_no,result);
+ QDIO_PRINT_WARN("could not set indicators on irq 0.%x.%x, " \
+ "cc=%i.\n",
+ irq_ptr->schid.ssid, irq_ptr->schid.sch_no,result);
result = -EIO;
goto out;
}
@@ -2536,7 +2544,8 @@
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->schid.sch_no);
+ "subchannel 0.%x.%x.\n",
+ irq_ptr->schid.ssid, irq_ptr->schid.sch_no);
return -ENOMEM;
}
scsscf_area->request = (struct chsc_header) {
@@ -2548,8 +2557,9 @@
result=chsc(scsscf_area);
if (result) {
- QDIO_PRINT_WARN("could not set delay target on irq x%x, " \
- "cc=%i. Continuing.\n",irq_ptr->schid.sch_no,
+ QDIO_PRINT_WARN("could not set delay target on irq 0.%x.%x, " \
+ "cc=%i. Continuing.\n",
+ irq_ptr->schid.ssid, irq_ptr->schid.sch_no,
result);
result = -EIO;
goto out;
@@ -2870,8 +2880,9 @@
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->schid.sch_no,cstat,dstat);
+ "queues on irq 0.%x.%x (cs=x%x, ds=x%x).\n",
+ irq_ptr->schid.ssid, irq_ptr->schid.sch_no,
+ cstat,dstat);
qdio_set_state(irq_ptr,QDIO_IRQ_STATE_ERR);
}
@@ -2879,9 +2890,10 @@
QDIO_DBF_TEXT2(1,setup,"eq:no de");
QDIO_DBF_HEX2(0,setup,&dstat, sizeof(dstat));
QDIO_DBF_HEX2(0,setup,&cstat, sizeof(cstat));
- QDIO_PRINT_ERR("establish queues on irq %04x: didn't get "
+ QDIO_PRINT_ERR("establish queues on irq 0.%x.%04x: didn't get "
"device end: dstat=%02x, cstat=%02x\n",
- irq_ptr->schid.sch_no, dstat, cstat);
+ irq_ptr->schid.ssid, irq_ptr->schid.sch_no,
+ dstat, cstat);
qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ERR);
return 1;
}
@@ -2890,9 +2902,9 @@
QDIO_DBF_TEXT2(1,setup,"eq:badio");
QDIO_DBF_HEX2(0,setup,&dstat, sizeof(dstat));
QDIO_DBF_HEX2(0,setup,&cstat, sizeof(cstat));
- QDIO_PRINT_ERR("establish queues on irq %04x: got "
+ QDIO_PRINT_ERR("establish queues on irq 0.%x.%04x: got "
"the following devstat: dstat=%02x, "
- "cstat=%02x\n",
+ "cstat=%02x\n", irq_ptr->schid.ssid,
irq_ptr->schid.sch_no, dstat, cstat);
qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ERR);
return 1;
@@ -3041,7 +3053,8 @@
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->schid.sch_no);
+ "for irq 0.%x.%x\n",
+ irq_ptr->schid.ssid, irq_ptr->schid.sch_no);
qdio_release_irq_memory(irq_ptr);
return -ENOBUFS;
}
@@ -3198,9 +3211,10 @@
sprintf(dbf_text,"eq:io%4x",result);
QDIO_DBF_TEXT2(1,setup,dbf_text);
}
- QDIO_PRINT_WARN("establish queues on irq %04x: do_IO " \
- "returned %i, next try returned %i\n",
- irq_ptr->schid.sch_no,result,result2);
+ QDIO_PRINT_WARN("establish queues on irq 0.%x.%04x: do_IO " \
+ "returned %i, next try returned %i\n",
+ irq_ptr->schid.ssid, irq_ptr->schid.sch_no,
+ result, result2);
result=result2;
if (result)
ccw_device_set_timeout(cdev, 0);
@@ -3298,9 +3312,10 @@
sprintf(dbf_text,"aq:io%4x",result);
QDIO_DBF_TEXT2(1,setup,dbf_text);
}
- QDIO_PRINT_WARN("activate queues on irq %04x: do_IO " \
- "returned %i, next try returned %i\n",
- irq_ptr->schid.sch_no,result,result2);
+ QDIO_PRINT_WARN("activate queues on irq 0.%x.%04x: do_IO " \
+ "returned %i, next try returned %i\n",
+ irq_ptr->schid.ssid, irq_ptr->schid.sch_no,
+ result, result2);
result=result2;
}