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s390/cio: rename struct channel_path_desc

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Rename struct channel_path_desc to struct channel_path_desc_fmt0
to fit the scheme. Provide a macro for the function wrappers that
gather this and related data from firmware.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Sebastian Ott 2017-06-29 13:27:22 +02:00 committed by Martin Schwidefsky
parent 135a8b4ce5
commit ded27d8d2e
9 changed files with 36 additions and 50 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/s390/include/asm/ccwdev.h
View File

@ -230,5 +230,5 @@ int ccw_device_siosl(struct ccw_device *);
extern void ccw_device_get_schid(struct ccw_device *, struct subchannel_id *);
struct channel_path_desc *ccw_device_get_chp_desc(struct ccw_device *, int);
struct channel_path_desc_fmt0 *ccw_device_get_chp_desc(struct ccw_device *, int);
#endif /* _S390_CCWDEV_H_ */

2
arch/s390/include/asm/chpid.h
View File

@ -9,7 +9,7 @@
#include <uapi/asm/chpid.h>
#include <asm/cio.h>
struct channel_path_desc {
struct channel_path_desc_fmt0 {
u8 flags;
u8 lsn;
u8 desc;

2
drivers/s390/block/dasd_eckd.c
View File

@ -994,7 +994,7 @@ static int dasd_eckd_read_conf(struct dasd_device *device)
struct dasd_eckd_private *private, path_private;
struct dasd_uid *uid;
char print_path_uid[60], print_device_uid[60];
struct channel_path_desc *chp_desc;
struct channel_path_desc_fmt0 *chp_desc;
struct subchannel_id sch_id;
private = device->private;

10
drivers/s390/cio/chp.c
View File

@ -422,7 +422,7 @@ int chp_update_desc(struct channel_path *chp)
{
int rc;
rc = chsc_determine_base_channel_path_desc(chp->chpid, &chp->desc);
rc = chsc_determine_fmt0_channel_path_desc(chp->chpid, &chp->desc);
if (rc)
return rc;
@ -506,20 +506,20 @@ out:
* On success return a newly allocated copy of the channel-path description
* data associated with the given channel-path ID. Return %NULL on error.
*/
struct channel_path_desc *chp_get_chp_desc(struct chp_id chpid)
struct channel_path_desc_fmt0 *chp_get_chp_desc(struct chp_id chpid)
{
struct channel_path *chp;
struct channel_path_desc *desc;
struct channel_path_desc_fmt0 *desc;
chp = chpid_to_chp(chpid);
if (!chp)
return NULL;
desc = kmalloc(sizeof(struct channel_path_desc), GFP_KERNEL);
desc = kmalloc(sizeof(*desc), GFP_KERNEL);
if (!desc)
return NULL;
mutex_lock(&chp->lock);
memcpy(desc, &chp->desc, sizeof(struct channel_path_desc));
memcpy(desc, &chp->desc, sizeof(*desc));
mutex_unlock(&chp->lock);
return desc;
}

4
drivers/s390/cio/chp.h
View File

@ -44,7 +44,7 @@ struct channel_path {
struct chp_id chpid;
struct mutex lock; /* Serialize access to below members. */
int state;
struct channel_path_desc desc;
struct channel_path_desc_fmt0 desc;
struct channel_path_desc_fmt1 desc_fmt1;
/* Channel-measurement related stuff: */
int cmg;
@ -61,7 +61,7 @@ static inline struct channel_path *chpid_to_chp(struct chp_id chpid)
int chp_get_status(struct chp_id chpid);
u8 chp_get_sch_opm(struct subchannel *sch);
int chp_is_registered(struct chp_id chpid);
struct channel_path_desc *chp_get_chp_desc(struct chp_id chpid);
struct channel_path_desc_fmt0 *chp_get_chp_desc(struct chp_id chpid);
void chp_remove_cmg_attr(struct channel_path *chp);
int chp_add_cmg_attr(struct channel_path *chp);
int chp_update_desc(struct channel_path *chp);

56
drivers/s390/cio/chsc.c
View File

@ -940,43 +940,29 @@ int chsc_determine_channel_path_desc(struct chp_id chpid, int fmt, int rfmt,
}
EXPORT_SYMBOL_GPL(chsc_determine_channel_path_desc);
int chsc_determine_base_channel_path_desc(struct chp_id chpid,
struct channel_path_desc *desc)
{
struct chsc_scpd *scpd_area;
unsigned long flags;
int ret;
spin_lock_irqsave(&chsc_page_lock, flags);
scpd_area = chsc_page;
ret = chsc_determine_channel_path_desc(chpid, 0, 0, 0, 0, scpd_area);
if (ret)
goto out;
memcpy(desc, scpd_area->data, sizeof(*desc));
out:
spin_unlock_irqrestore(&chsc_page_lock, flags);
return ret;
#define chsc_det_chp_desc(FMT, c) \
int chsc_determine_fmt##FMT##_channel_path_desc( \
struct chp_id chpid, struct channel_path_desc_fmt##FMT *desc) \
{ \
struct chsc_scpd *scpd_area; \
unsigned long flags; \
int ret; \
\
spin_lock_irqsave(&chsc_page_lock, flags); \
scpd_area = chsc_page; \
ret = chsc_determine_channel_path_desc(chpid, 0, FMT, c, 0, \
scpd_area); \
if (ret) \
goto out; \
\
memcpy(desc, scpd_area->data, sizeof(*desc)); \
out: \
spin_unlock_irqrestore(&chsc_page_lock, flags); \
return ret; \
}
int chsc_determine_fmt1_channel_path_desc(struct chp_id chpid,
struct channel_path_desc_fmt1 *desc)
{
struct chsc_scpd *scpd_area;
unsigned long flags;
int ret;
spin_lock_irqsave(&chsc_page_lock, flags);
scpd_area = chsc_page;
ret = chsc_determine_channel_path_desc(chpid, 0, 1, 1, 0, scpd_area);
if (ret)
goto out;
memcpy(desc, scpd_area->data, sizeof(*desc));
out:
spin_unlock_irqrestore(&chsc_page_lock, flags);
return ret;
}
chsc_det_chp_desc(0, 0)
chsc_det_chp_desc(1, 1)
static void
chsc_initialize_cmg_chars(struct channel_path *chp, u8 cmcv,

4
drivers/s390/cio/chsc.h
View File

@ -147,8 +147,8 @@ int __chsc_do_secm(struct channel_subsystem *css, int enable);
int chsc_chp_vary(struct chp_id chpid, int on);
int chsc_determine_channel_path_desc(struct chp_id chpid, int fmt, int rfmt,
int c, int m, void *page);
int chsc_determine_base_channel_path_desc(struct chp_id chpid,
struct channel_path_desc *desc);
int chsc_determine_fmt0_channel_path_desc(struct chp_id chpid,
struct channel_path_desc_fmt0 *desc);
int chsc_determine_fmt1_channel_path_desc(struct chp_id chpid,
struct channel_path_desc_fmt1 *desc);
void chsc_chp_online(struct chp_id chpid);

4
drivers/s390/cio/device_ops.c
View File

@ -460,8 +460,8 @@ __u8 ccw_device_get_path_mask(struct ccw_device *cdev)
* On success return a newly allocated copy of the channel-path description
* data associated with the given channel path. Return %NULL on error.
*/
struct channel_path_desc *ccw_device_get_chp_desc(struct ccw_device *cdev,
int chp_idx)
struct channel_path_desc_fmt0 *ccw_device_get_chp_desc(struct ccw_device *cdev,
int chp_idx)
{
struct subchannel *sch;
struct chp_id chpid;

2
drivers/s390/net/qeth_core_main.c
View File

@ -1361,7 +1361,7 @@ static void qeth_set_multiple_write_queues(struct qeth_card *card)
static void qeth_update_from_chp_desc(struct qeth_card *card)
{
struct ccw_device *ccwdev;
struct channel_path_desc *chp_dsc;
struct channel_path_desc_fmt0 *chp_dsc;
QETH_DBF_TEXT(SETUP, 2, "chp_desc");