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path: root/drivers/s390/cio/qdio_setup.c
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Diffstat (limited to 'drivers/s390/cio/qdio_setup.c')
-rw-r--r--drivers/s390/cio/qdio_setup.c73
1 files changed, 29 insertions, 44 deletions
diff --git a/drivers/s390/cio/qdio_setup.c b/drivers/s390/cio/qdio_setup.c
index 2acc01f90a6..f5f4a91fab4 100644
--- a/drivers/s390/cio/qdio_setup.c
+++ b/drivers/s390/cio/qdio_setup.c
@@ -1,9 +1,7 @@
/*
- * driver/s390/cio/qdio_setup.c
- *
* qdio queue initialization
*
- * Copyright (C) IBM Corp. 2008
+ * Copyright IBM Corp. 2008
* Author(s): Jan Glauber <jang@linux.vnet.ibm.com>
*/
#include <linux/kernel.h>
@@ -22,12 +20,9 @@
static struct kmem_cache *qdio_q_cache;
static struct kmem_cache *qdio_aob_cache;
-struct qaob *qdio_allocate_aob()
+struct qaob *qdio_allocate_aob(void)
{
- struct qaob *aob;
-
- aob = kmem_cache_zalloc(qdio_aob_cache, GFP_ATOMIC);
- return aob;
+ return kmem_cache_zalloc(qdio_aob_cache, GFP_ATOMIC);
}
EXPORT_SYMBOL_GPL(qdio_allocate_aob);
@@ -145,10 +140,8 @@ static void setup_storage_lists(struct qdio_q *q, struct qdio_irq *irq_ptr,
q->sl = (struct sl *)((char *)q->slib + PAGE_SIZE / 2);
/* fill in sbal */
- for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++) {
+ for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++)
q->sbal[j] = *sbals_array++;
- BUG_ON((unsigned long)q->sbal[j] & 0xff);
- }
/* fill in slib */
if (i > 0) {
@@ -180,7 +173,8 @@ static void setup_queues(struct qdio_irq *irq_ptr,
setup_queues_misc(q, irq_ptr, qdio_init->input_handler, i);
q->is_input_q = 1;
- q->u.in.queue_start_poll = qdio_init->queue_start_poll[i];
+ q->u.in.queue_start_poll = qdio_init->queue_start_poll_array ?
+ qdio_init->queue_start_poll_array[i] : NULL;
setup_storage_lists(q, irq_ptr, input_sbal_array, i);
input_sbal_array += QDIO_MAX_BUFFERS_PER_Q;
@@ -260,40 +254,31 @@ int qdio_setup_get_ssqd(struct qdio_irq *irq_ptr,
int rc;
DBF_EVENT("getssqd:%4x", schid->sch_no);
- if (irq_ptr != NULL)
- ssqd = (struct chsc_ssqd_area *)irq_ptr->chsc_page;
- else
+ if (!irq_ptr) {
ssqd = (struct chsc_ssqd_area *)__get_free_page(GFP_KERNEL);
- memset(ssqd, 0, PAGE_SIZE);
-
- ssqd->request = (struct chsc_header) {
- .length = 0x0010,
- .code = 0x0024,
- };
- ssqd->first_sch = schid->sch_no;
- ssqd->last_sch = schid->sch_no;
- ssqd->ssid = schid->ssid;
-
- if (chsc(ssqd))
- return -EIO;
- rc = chsc_error_from_response(ssqd->response.code);
+ if (!ssqd)
+ return -ENOMEM;
+ } else {
+ ssqd = (struct chsc_ssqd_area *)irq_ptr->chsc_page;
+ }
+
+ rc = chsc_ssqd(*schid, ssqd);
if (rc)
- return rc;
+ goto out;
if (!(ssqd->qdio_ssqd.flags & CHSC_FLAG_QDIO_CAPABILITY) ||
!(ssqd->qdio_ssqd.flags & CHSC_FLAG_VALIDITY) ||
(ssqd->qdio_ssqd.sch != schid->sch_no))
- return -EINVAL;
-
- if (irq_ptr != NULL)
- memcpy(&irq_ptr->ssqd_desc, &ssqd->qdio_ssqd,
- sizeof(struct qdio_ssqd_desc));
- else {
- memcpy(data, &ssqd->qdio_ssqd,
- sizeof(struct qdio_ssqd_desc));
+ rc = -EINVAL;
+
+ if (!rc)
+ memcpy(data, &ssqd->qdio_ssqd, sizeof(*data));
+
+out:
+ if (!irq_ptr)
free_page((unsigned long)ssqd);
- }
- return 0;
+
+ return rc;
}
void qdio_setup_ssqd_info(struct qdio_irq *irq_ptr)
@@ -301,7 +286,7 @@ void qdio_setup_ssqd_info(struct qdio_irq *irq_ptr)
unsigned char qdioac;
int rc;
- rc = qdio_setup_get_ssqd(irq_ptr, &irq_ptr->schid, NULL);
+ rc = qdio_setup_get_ssqd(irq_ptr, &irq_ptr->schid, &irq_ptr->ssqd_desc);
if (rc) {
DBF_ERROR("%4x ssqd ERR", irq_ptr->schid.sch_no);
DBF_ERROR("rc:%x", rc);
@@ -313,7 +298,8 @@ void qdio_setup_ssqd_info(struct qdio_irq *irq_ptr)
check_and_setup_qebsm(irq_ptr, qdioac, irq_ptr->ssqd_desc.sch_token);
process_ac_flags(irq_ptr, qdioac);
- DBF_EVENT("qdioac:%4x", qdioac);
+ DBF_EVENT("ac 1:%2x 2:%4x", qdioac, irq_ptr->ssqd_desc.qdioac2);
+ DBF_EVENT("3:%4x qib:%4x", irq_ptr->ssqd_desc.qdioac3, irq_ptr->qib.ac);
}
void qdio_release_memory(struct qdio_irq *irq_ptr)
@@ -437,9 +423,8 @@ int qdio_setup_irq(struct qdio_initialize *init_data)
irq_ptr->int_parm = init_data->int_parm;
irq_ptr->nr_input_qs = init_data->no_input_qs;
irq_ptr->nr_output_qs = init_data->no_output_qs;
-
- irq_ptr->schid = ccw_device_get_subchannel_id(init_data->cdev);
irq_ptr->cdev = init_data->cdev;
+ ccw_device_get_schid(irq_ptr->cdev, &irq_ptr->schid);
setup_queues(irq_ptr, init_data);
setup_qib(irq_ptr, init_data);
@@ -486,7 +471,7 @@ void qdio_print_subchannel_info(struct qdio_irq *irq_ptr,
char s[80];
snprintf(s, 80, "qdio: %s %s on SC %x using "
- "AI:%d QEBSM:%d PCI:%d TDD:%d SIGA:%s%s%s%s%s\n",
+ "AI:%d QEBSM:%d PRI:%d TDD:%d SIGA:%s%s%s%s%s\n",
dev_name(&cdev->dev),
(irq_ptr->qib.qfmt == QDIO_QETH_QFMT) ? "OSA" :
((irq_ptr->qib.qfmt == QDIO_ZFCP_QFMT) ? "ZFCP" : "HS"),