[S390] cio: Add chsc subchannel driver.
This patch adds a driver for subchannels of type chsc. A device /dev/chsc is created which may be used to issue ioctls to: - obtain information about the machine's I/O configuration - dynamically change the machine's I/O configuration via asynchronous chsc commands Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>hifive-unleashed-5.1
parent
683c5418e6
commit
9d92a7e1b0
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@ -117,6 +117,7 @@ Code Seq# Include File Comments
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<mailto:natalia@nikhefk.nikhef.nl>
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<mailto:natalia@nikhefk.nikhef.nl>
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'c' 00-7F linux/comstats.h conflict!
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'c' 00-7F linux/comstats.h conflict!
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'c' 00-7F linux/coda.h conflict!
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'c' 00-7F linux/coda.h conflict!
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'c' 80-9F asm-s390/chsc.h
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'd' 00-FF linux/char/drm/drm/h conflict!
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'd' 00-FF linux/char/drm/drm/h conflict!
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'd' 00-DF linux/video_decoder.h conflict!
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'd' 00-DF linux/video_decoder.h conflict!
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'd' F0-FF linux/digi1.h
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'd' F0-FF linux/digi1.h
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@ -345,6 +345,22 @@ config QDIO_DEBUG
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If unsure, say N.
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If unsure, say N.
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config CHSC_SCH
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tristate "Support for CHSC subchannels"
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help
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This driver allows usage of CHSC subchannels. A CHSC subchannel
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is usually present on LPAR only.
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The driver creates a device /dev/chsc, which may be used to
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obtain I/O configuration information about the machine and
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to issue asynchronous chsc commands (DANGEROUS).
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You will usually only want to use this interface on a special
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LPAR designated for system management.
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To compile this driver as a module, choose M here: the
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module will be called chsc_sch.
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If unsure, say N.
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comment "Misc"
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comment "Misc"
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config IPL
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config IPL
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@ -7,5 +7,6 @@ obj-y += airq.o blacklist.o chsc.o cio.o css.o chp.o idset.o isc.o scsw.o \
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ccw_device-objs += device.o device_fsm.o device_ops.o
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ccw_device-objs += device.o device_fsm.o device_ops.o
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ccw_device-objs += device_id.o device_pgid.o device_status.o
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ccw_device-objs += device_id.o device_pgid.o device_status.o
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obj-y += ccw_device.o cmf.o
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obj-y += ccw_device.o cmf.o
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obj-$(CONFIG_CHSC_SCH) += chsc_sch.o
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obj-$(CONFIG_CCWGROUP) += ccwgroup.o
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obj-$(CONFIG_CCWGROUP) += ccwgroup.o
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obj-$(CONFIG_QDIO) += qdio.o
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obj-$(CONFIG_QDIO) += qdio.o
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@ -407,7 +407,7 @@ int chp_new(struct chp_id chpid)
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chpid.id);
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chpid.id);
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/* Obtain channel path description and fill it in. */
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/* Obtain channel path description and fill it in. */
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ret = chsc_determine_channel_path_description(chpid, &chp->desc);
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ret = chsc_determine_base_channel_path_desc(chpid, &chp->desc);
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if (ret)
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if (ret)
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goto out_free;
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goto out_free;
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if ((chp->desc.flags & 0x80) == 0) {
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if ((chp->desc.flags & 0x80) == 0) {
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@ -15,6 +15,7 @@
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#include <asm/cio.h>
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#include <asm/cio.h>
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#include <asm/chpid.h>
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#include <asm/chpid.h>
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#include <asm/chsc.h>
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#include "../s390mach.h"
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#include "../s390mach.h"
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#include "css.h"
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#include "css.h"
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@ -627,23 +628,33 @@ chsc_secm(struct channel_subsystem *css, int enable)
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return ret;
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return ret;
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}
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}
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int chsc_determine_channel_path_description(struct chp_id chpid,
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int chsc_determine_channel_path_desc(struct chp_id chpid, int fmt, int rfmt,
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struct channel_path_desc *desc)
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int c, int m,
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struct chsc_response_struct *resp)
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{
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{
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int ccode, ret;
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int ccode, ret;
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struct {
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struct {
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struct chsc_header request;
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struct chsc_header request;
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u32 : 24;
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u32 : 2;
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u32 m : 1;
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u32 c : 1;
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u32 fmt : 4;
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u32 cssid : 8;
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u32 : 4;
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u32 rfmt : 4;
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u32 first_chpid : 8;
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u32 first_chpid : 8;
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u32 : 24;
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u32 : 24;
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u32 last_chpid : 8;
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u32 last_chpid : 8;
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u32 zeroes1;
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u32 zeroes1;
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struct chsc_header response;
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struct chsc_header response;
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u32 zeroes2;
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u8 data[PAGE_SIZE - 20];
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struct channel_path_desc desc;
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} __attribute__ ((packed)) *scpd_area;
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} __attribute__ ((packed)) *scpd_area;
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if ((rfmt == 1) && !css_general_characteristics.fcs)
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return -EINVAL;
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if ((rfmt == 2) && !css_general_characteristics.cib)
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return -EINVAL;
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scpd_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
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scpd_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
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if (!scpd_area)
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if (!scpd_area)
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return -ENOMEM;
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return -ENOMEM;
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@ -651,8 +662,13 @@ int chsc_determine_channel_path_description(struct chp_id chpid,
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scpd_area->request.length = 0x0010;
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scpd_area->request.length = 0x0010;
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scpd_area->request.code = 0x0002;
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scpd_area->request.code = 0x0002;
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scpd_area->cssid = chpid.cssid;
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scpd_area->first_chpid = chpid.id;
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scpd_area->first_chpid = chpid.id;
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scpd_area->last_chpid = chpid.id;
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scpd_area->last_chpid = chpid.id;
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scpd_area->m = m;
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scpd_area->c = c;
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scpd_area->fmt = fmt;
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scpd_area->rfmt = rfmt;
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ccode = chsc(scpd_area);
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ccode = chsc(scpd_area);
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if (ccode > 0) {
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if (ccode > 0) {
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@ -663,8 +679,7 @@ int chsc_determine_channel_path_description(struct chp_id chpid,
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ret = chsc_error_from_response(scpd_area->response.code);
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ret = chsc_error_from_response(scpd_area->response.code);
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if (ret == 0)
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if (ret == 0)
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/* Success. */
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/* Success. */
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memcpy(desc, &scpd_area->desc,
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memcpy(resp, &scpd_area->response, scpd_area->response.length);
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sizeof(struct channel_path_desc));
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else
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else
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CIO_CRW_EVENT(2, "chsc: scpd failed (rc=%04x)\n",
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CIO_CRW_EVENT(2, "chsc: scpd failed (rc=%04x)\n",
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scpd_area->response.code);
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scpd_area->response.code);
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@ -672,6 +687,25 @@ out:
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free_page((unsigned long)scpd_area);
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free_page((unsigned long)scpd_area);
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return ret;
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return ret;
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}
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}
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EXPORT_SYMBOL_GPL(chsc_determine_channel_path_desc);
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int chsc_determine_base_channel_path_desc(struct chp_id chpid,
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struct channel_path_desc *desc)
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{
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struct chsc_response_struct *chsc_resp;
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int ret;
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chsc_resp = kzalloc(sizeof(*chsc_resp), GFP_KERNEL);
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if (!chsc_resp)
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return -ENOMEM;
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ret = chsc_determine_channel_path_desc(chpid, 0, 0, 0, 0, chsc_resp);
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if (ret)
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goto out_free;
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memcpy(desc, &chsc_resp->data, chsc_resp->length);
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out_free:
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kfree(chsc_resp);
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return ret;
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}
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static void
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static void
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chsc_initialize_cmg_chars(struct channel_path *chp, u8 cmcv,
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chsc_initialize_cmg_chars(struct channel_path *chp, u8 cmcv,
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@ -4,7 +4,8 @@
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#include <linux/types.h>
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#include <linux/types.h>
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#include <linux/device.h>
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#include <linux/device.h>
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#include <asm/chpid.h>
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#include <asm/chpid.h>
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#include "schid.h"
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#include <asm/chsc.h>
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#include <asm/schid.h>
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#define CHSC_SDA_OC_MSS 0x2
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#define CHSC_SDA_OC_MSS 0x2
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@ -37,11 +38,14 @@ struct channel_path_desc {
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struct channel_path;
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struct channel_path;
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struct css_general_char {
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struct css_general_char {
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u64 : 41;
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u64 : 12;
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u32 dynio : 1; /* bit 12 */
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u32 : 28;
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u32 aif : 1; /* bit 41 */
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u32 aif : 1; /* bit 41 */
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u32 : 3;
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u32 : 3;
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u32 mcss : 1; /* bit 45 */
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u32 mcss : 1; /* bit 45 */
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u32 : 2;
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u32 fcs : 1; /* bit 46 */
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u32 : 1;
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u32 ext_mb : 1; /* bit 48 */
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u32 ext_mb : 1; /* bit 48 */
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u32 : 7;
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u32 : 7;
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u32 aif_tdd : 1; /* bit 56 */
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u32 aif_tdd : 1; /* bit 56 */
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u32 qebsm : 1; /* bit 58 */
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u32 qebsm : 1; /* bit 58 */
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u32 : 8;
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u32 : 8;
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u32 aif_osa : 1; /* bit 67 */
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u32 aif_osa : 1; /* bit 67 */
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u32 : 20;
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u32 : 14;
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u32 cib : 1; /* bit 82 */
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u32 : 5;
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u32 fcx : 1; /* bit 88 */
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u32 fcx : 1; /* bit 88 */
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u32 : 7;
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u32 : 7;
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}__attribute__((packed));
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}__attribute__((packed));
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@ -86,8 +92,11 @@ struct channel_subsystem;
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extern int chsc_secm(struct channel_subsystem *, int);
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extern int chsc_secm(struct channel_subsystem *, int);
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int chsc_chp_vary(struct chp_id chpid, int on);
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int chsc_chp_vary(struct chp_id chpid, int on);
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int chsc_determine_channel_path_description(struct chp_id chpid,
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int chsc_determine_channel_path_desc(struct chp_id chpid, int fmt, int rfmt,
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struct channel_path_desc *desc);
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int c, int m,
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struct chsc_response_struct *resp);
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int chsc_determine_base_channel_path_desc(struct chp_id chpid,
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struct channel_path_desc *desc);
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void chsc_chp_online(struct chp_id chpid);
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void chsc_chp_online(struct chp_id chpid);
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void chsc_chp_offline(struct chp_id chpid);
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void chsc_chp_offline(struct chp_id chpid);
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int chsc_get_channel_measurement_chars(struct channel_path *chp);
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int chsc_get_channel_measurement_chars(struct channel_path *chp);
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@ -0,0 +1,820 @@
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/*
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* Driver for s390 chsc subchannels
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*
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* Copyright IBM Corp. 2008
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* Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
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*
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*/
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#include <linux/device.h>
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#include <linux/module.h>
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#include <linux/uaccess.h>
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#include <linux/miscdevice.h>
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#include <asm/cio.h>
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#include <asm/chsc.h>
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#include <asm/isc.h>
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#include "cio.h"
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#include "cio_debug.h"
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#include "css.h"
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#include "chsc_sch.h"
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#include "ioasm.h"
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static debug_info_t *chsc_debug_msg_id;
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static debug_info_t *chsc_debug_log_id;
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#define CHSC_MSG(imp, args...) do { \
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debug_sprintf_event(chsc_debug_msg_id, imp , ##args); \
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} while (0)
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#define CHSC_LOG(imp, txt) do { \
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debug_text_event(chsc_debug_log_id, imp , txt); \
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} while (0)
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static void CHSC_LOG_HEX(int level, void *data, int length)
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{
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while (length > 0) {
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debug_event(chsc_debug_log_id, level, data, length);
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length -= chsc_debug_log_id->buf_size;
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data += chsc_debug_log_id->buf_size;
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}
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}
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MODULE_AUTHOR("IBM Corporation");
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MODULE_DESCRIPTION("driver for s390 chsc subchannels");
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MODULE_LICENSE("GPL");
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static void chsc_subchannel_irq(struct subchannel *sch)
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{
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struct chsc_private *private = sch->private;
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struct chsc_request *request = private->request;
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struct irb *irb = (struct irb *)__LC_IRB;
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CHSC_LOG(4, "irb");
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CHSC_LOG_HEX(4, irb, sizeof(*irb));
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/* Copy irb to provided request and set done. */
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if (!request) {
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CHSC_MSG(0, "Interrupt on sch 0.%x.%04x with no request\n",
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sch->schid.ssid, sch->schid.sch_no);
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return;
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}
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private->request = NULL;
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memcpy(&request->irb, irb, sizeof(*irb));
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stsch(sch->schid, &sch->schib);
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complete(&request->completion);
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put_device(&sch->dev);
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}
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static int chsc_subchannel_probe(struct subchannel *sch)
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{
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struct chsc_private *private;
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int ret;
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CHSC_MSG(6, "Detected chsc subchannel 0.%x.%04x\n",
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sch->schid.ssid, sch->schid.sch_no);
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sch->isc = CHSC_SCH_ISC;
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private = kzalloc(sizeof(*private), GFP_KERNEL);
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if (!private)
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return -ENOMEM;
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ret = cio_enable_subchannel(sch, (u32)(unsigned long)sch);
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if (ret) {
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CHSC_MSG(0, "Failed to enable 0.%x.%04x: %d\n",
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sch->schid.ssid, sch->schid.sch_no, ret);
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kfree(private);
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} else {
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sch->private = private;
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if (sch->dev.uevent_suppress) {
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sch->dev.uevent_suppress = 0;
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kobject_uevent(&sch->dev.kobj, KOBJ_ADD);
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}
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}
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return ret;
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}
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static int chsc_subchannel_remove(struct subchannel *sch)
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{
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struct chsc_private *private;
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cio_disable_subchannel(sch);
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private = sch->private;
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sch->private = NULL;
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if (private->request) {
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complete(&private->request->completion);
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put_device(&sch->dev);
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}
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kfree(private);
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return 0;
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}
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static void chsc_subchannel_shutdown(struct subchannel *sch)
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{
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cio_disable_subchannel(sch);
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}
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static struct css_device_id chsc_subchannel_ids[] = {
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{ .match_flags = 0x1, .type =SUBCHANNEL_TYPE_CHSC, },
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{ /* end of list */ },
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};
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MODULE_DEVICE_TABLE(css, chsc_subchannel_ids);
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static struct css_driver chsc_subchannel_driver = {
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.owner = THIS_MODULE,
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.subchannel_type = chsc_subchannel_ids,
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.irq = chsc_subchannel_irq,
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||||||
|
.probe = chsc_subchannel_probe,
|
||||||
|
.remove = chsc_subchannel_remove,
|
||||||
|
.shutdown = chsc_subchannel_shutdown,
|
||||||
|
.name = "chsc_subchannel",
|
||||||
|
};
|
||||||
|
|
||||||
|
static int __init chsc_init_dbfs(void)
|
||||||
|
{
|
||||||
|
chsc_debug_msg_id = debug_register("chsc_msg", 16, 1,
|
||||||
|
16 * sizeof(long));
|
||||||
|
if (!chsc_debug_msg_id)
|
||||||
|
goto out;
|
||||||
|
debug_register_view(chsc_debug_msg_id, &debug_sprintf_view);
|
||||||
|
debug_set_level(chsc_debug_msg_id, 2);
|
||||||
|
chsc_debug_log_id = debug_register("chsc_log", 16, 1, 16);
|
||||||
|
if (!chsc_debug_log_id)
|
||||||
|
goto out;
|
||||||
|
debug_register_view(chsc_debug_log_id, &debug_hex_ascii_view);
|
||||||
|
debug_set_level(chsc_debug_log_id, 2);
|
||||||
|
return 0;
|
||||||
|
out:
|
||||||
|
if (chsc_debug_msg_id)
|
||||||
|
debug_unregister(chsc_debug_msg_id);
|
||||||
|
return -ENOMEM;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void chsc_remove_dbfs(void)
|
||||||
|
{
|
||||||
|
debug_unregister(chsc_debug_log_id);
|
||||||
|
debug_unregister(chsc_debug_msg_id);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int __init chsc_init_sch_driver(void)
|
||||||
|
{
|
||||||
|
return css_driver_register(&chsc_subchannel_driver);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void chsc_cleanup_sch_driver(void)
|
||||||
|
{
|
||||||
|
css_driver_unregister(&chsc_subchannel_driver);
|
||||||
|
}
|
||||||
|
|
||||||
|
static DEFINE_SPINLOCK(chsc_lock);
|
||||||
|
|
||||||
|
static int chsc_subchannel_match_next_free(struct device *dev, void *data)
|
||||||
|
{
|
||||||
|
struct subchannel *sch = to_subchannel(dev);
|
||||||
|
|
||||||
|
return sch->schib.pmcw.ena && !scsw_fctl(&sch->schib.scsw);
|
||||||
|
}
|
||||||
|
|
||||||
|
static struct subchannel *chsc_get_next_subchannel(struct subchannel *sch)
|
||||||
|
{
|
||||||
|
struct device *dev;
|
||||||
|
|
||||||
|
dev = driver_find_device(&chsc_subchannel_driver.drv,
|
||||||
|
sch ? &sch->dev : NULL, NULL,
|
||||||
|
chsc_subchannel_match_next_free);
|
||||||
|
return dev ? to_subchannel(dev) : NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* chsc_async() - try to start a chsc request asynchronously
|
||||||
|
* @chsc_area: request to be started
|
||||||
|
* @request: request structure to associate
|
||||||
|
*
|
||||||
|
* Tries to start a chsc request on one of the existing chsc subchannels.
|
||||||
|
* Returns:
|
||||||
|
* %0 if the request was performed synchronously
|
||||||
|
* %-EINPROGRESS if the request was successfully started
|
||||||
|
* %-EBUSY if all chsc subchannels are busy
|
||||||
|
* %-ENODEV if no chsc subchannels are available
|
||||||
|
* Context:
|
||||||
|
* interrupts disabled, chsc_lock held
|
||||||
|
*/
|
||||||
|
static int chsc_async(struct chsc_async_area *chsc_area,
|
||||||
|
struct chsc_request *request)
|
||||||
|
{
|
||||||
|
int cc;
|
||||||
|
struct chsc_private *private;
|
||||||
|
struct subchannel *sch = NULL;
|
||||||
|
int ret = -ENODEV;
|
||||||
|
char dbf[10];
|
||||||
|
|
||||||
|
chsc_area->header.key = PAGE_DEFAULT_KEY;
|
||||||
|
while ((sch = chsc_get_next_subchannel(sch))) {
|
||||||
|
spin_lock(sch->lock);
|
||||||
|
private = sch->private;
|
||||||
|
if (private->request) {
|
||||||
|
spin_unlock(sch->lock);
|
||||||
|
ret = -EBUSY;
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
chsc_area->header.sid = sch->schid;
|
||||||
|
CHSC_LOG(2, "schid");
|
||||||
|
CHSC_LOG_HEX(2, &sch->schid, sizeof(sch->schid));
|
||||||
|
cc = chsc(chsc_area);
|
||||||
|
sprintf(dbf, "cc:%d", cc);
|
||||||
|
CHSC_LOG(2, dbf);
|
||||||
|
switch (cc) {
|
||||||
|
case 0:
|
||||||
|
ret = 0;
|
||||||
|
break;
|
||||||
|
case 1:
|
||||||
|
sch->schib.scsw.cmd.fctl |= SCSW_FCTL_START_FUNC;
|
||||||
|
ret = -EINPROGRESS;
|
||||||
|
private->request = request;
|
||||||
|
break;
|
||||||
|
case 2:
|
||||||
|
ret = -EBUSY;
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
ret = -ENODEV;
|
||||||
|
}
|
||||||
|
spin_unlock(sch->lock);
|
||||||
|
CHSC_MSG(2, "chsc on 0.%x.%04x returned cc=%d\n",
|
||||||
|
sch->schid.ssid, sch->schid.sch_no, cc);
|
||||||
|
if (ret == -EINPROGRESS)
|
||||||
|
return -EINPROGRESS;
|
||||||
|
put_device(&sch->dev);
|
||||||
|
if (ret == 0)
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void chsc_log_command(struct chsc_async_area *chsc_area)
|
||||||
|
{
|
||||||
|
char dbf[10];
|
||||||
|
|
||||||
|
sprintf(dbf, "CHSC:%x", chsc_area->header.code);
|
||||||
|
CHSC_LOG(0, dbf);
|
||||||
|
CHSC_LOG_HEX(0, chsc_area, 32);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int chsc_examine_irb(struct chsc_request *request)
|
||||||
|
{
|
||||||
|
int backed_up;
|
||||||
|
|
||||||
|
if (!scsw_stctl(&request->irb.scsw) & SCSW_STCTL_STATUS_PEND)
|
||||||
|
return -EIO;
|
||||||
|
backed_up = scsw_cstat(&request->irb.scsw) & SCHN_STAT_CHAIN_CHECK;
|
||||||
|
request->irb.scsw.cmd.cstat &= ~SCHN_STAT_CHAIN_CHECK;
|
||||||
|
if (scsw_cstat(&request->irb.scsw) == 0)
|
||||||
|
return 0;
|
||||||
|
if (!backed_up)
|
||||||
|
return 0;
|
||||||
|
if (scsw_cstat(&request->irb.scsw) & SCHN_STAT_PROG_CHECK)
|
||||||
|
return -EIO;
|
||||||
|
if (scsw_cstat(&request->irb.scsw) & SCHN_STAT_PROT_CHECK)
|
||||||
|
return -EPERM;
|
||||||
|
if (scsw_cstat(&request->irb.scsw) & SCHN_STAT_CHN_DATA_CHK)
|
||||||
|
return -EAGAIN;
|
||||||
|
if (scsw_cstat(&request->irb.scsw) & SCHN_STAT_CHN_CTRL_CHK)
|
||||||
|
return -EAGAIN;
|
||||||
|
return -EIO;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int chsc_ioctl_start(void __user *user_area)
|
||||||
|
{
|
||||||
|
struct chsc_request *request;
|
||||||
|
struct chsc_async_area *chsc_area;
|
||||||
|
int ret;
|
||||||
|
char dbf[10];
|
||||||
|
|
||||||
|
if (!css_general_characteristics.dynio)
|
||||||
|
/* It makes no sense to try. */
|
||||||
|
return -EOPNOTSUPP;
|
||||||
|
chsc_area = (void *)get_zeroed_page(GFP_DMA | GFP_KERNEL);
|
||||||
|
if (!chsc_area)
|
||||||
|
return -ENOMEM;
|
||||||
|
request = kzalloc(sizeof(*request), GFP_KERNEL);
|
||||||
|
if (!request) {
|
||||||
|
ret = -ENOMEM;
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
init_completion(&request->completion);
|
||||||
|
if (copy_from_user(chsc_area, user_area, PAGE_SIZE)) {
|
||||||
|
ret = -EFAULT;
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
chsc_log_command(chsc_area);
|
||||||
|
spin_lock_irq(&chsc_lock);
|
||||||
|
ret = chsc_async(chsc_area, request);
|
||||||
|
spin_unlock_irq(&chsc_lock);
|
||||||
|
if (ret == -EINPROGRESS) {
|
||||||
|
wait_for_completion(&request->completion);
|
||||||
|
ret = chsc_examine_irb(request);
|
||||||
|
}
|
||||||
|
/* copy area back to user */
|
||||||
|
if (!ret)
|
||||||
|
if (copy_to_user(user_area, chsc_area, PAGE_SIZE))
|
||||||
|
ret = -EFAULT;
|
||||||
|
out_free:
|
||||||
|
sprintf(dbf, "ret:%d", ret);
|
||||||
|
CHSC_LOG(0, dbf);
|
||||||
|
kfree(request);
|
||||||
|
free_page((unsigned long)chsc_area);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int chsc_ioctl_info_channel_path(void __user *user_cd)
|
||||||
|
{
|
||||||
|
struct chsc_chp_cd *cd;
|
||||||
|
int ret, ccode;
|
||||||
|
struct {
|
||||||
|
struct chsc_header request;
|
||||||
|
u32 : 2;
|
||||||
|
u32 m : 1;
|
||||||
|
u32 : 1;
|
||||||
|
u32 fmt1 : 4;
|
||||||
|
u32 cssid : 8;
|
||||||
|
u32 : 8;
|
||||||
|
u32 first_chpid : 8;
|
||||||
|
u32 : 24;
|
||||||
|
u32 last_chpid : 8;
|
||||||
|
u32 : 32;
|
||||||
|
struct chsc_header response;
|
||||||
|
u8 data[PAGE_SIZE - 20];
|
||||||
|
} __attribute__ ((packed)) *scpcd_area;
|
||||||
|
|
||||||
|
scpcd_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
|
||||||
|
if (!scpcd_area)
|
||||||
|
return -ENOMEM;
|
||||||
|
cd = kzalloc(sizeof(*cd), GFP_KERNEL);
|
||||||
|
if (!cd) {
|
||||||
|
ret = -ENOMEM;
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
if (copy_from_user(cd, user_cd, sizeof(*cd))) {
|
||||||
|
ret = -EFAULT;
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
scpcd_area->request.length = 0x0010;
|
||||||
|
scpcd_area->request.code = 0x0028;
|
||||||
|
scpcd_area->m = cd->m;
|
||||||
|
scpcd_area->fmt1 = cd->fmt;
|
||||||
|
scpcd_area->cssid = cd->chpid.cssid;
|
||||||
|
scpcd_area->first_chpid = cd->chpid.id;
|
||||||
|
scpcd_area->last_chpid = cd->chpid.id;
|
||||||
|
|
||||||
|
ccode = chsc(scpcd_area);
|
||||||
|
if (ccode != 0) {
|
||||||
|
ret = -EIO;
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
if (scpcd_area->response.code != 0x0001) {
|
||||||
|
ret = -EIO;
|
||||||
|
CHSC_MSG(0, "scpcd: response code=%x\n",
|
||||||
|
scpcd_area->response.code);
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
memcpy(&cd->cpcb, &scpcd_area->response, scpcd_area->response.length);
|
||||||
|
if (copy_to_user(user_cd, cd, sizeof(*cd)))
|
||||||
|
ret = -EFAULT;
|
||||||
|
else
|
||||||
|
ret = 0;
|
||||||
|
out_free:
|
||||||
|
kfree(cd);
|
||||||
|
free_page((unsigned long)scpcd_area);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int chsc_ioctl_info_cu(void __user *user_cd)
|
||||||
|
{
|
||||||
|
struct chsc_cu_cd *cd;
|
||||||
|
int ret, ccode;
|
||||||
|
struct {
|
||||||
|
struct chsc_header request;
|
||||||
|
u32 : 2;
|
||||||
|
u32 m : 1;
|
||||||
|
u32 : 1;
|
||||||
|
u32 fmt1 : 4;
|
||||||
|
u32 cssid : 8;
|
||||||
|
u32 : 8;
|
||||||
|
u32 first_cun : 8;
|
||||||
|
u32 : 24;
|
||||||
|
u32 last_cun : 8;
|
||||||
|
u32 : 32;
|
||||||
|
struct chsc_header response;
|
||||||
|
u8 data[PAGE_SIZE - 20];
|
||||||
|
} __attribute__ ((packed)) *scucd_area;
|
||||||
|
|
||||||
|
scucd_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
|
||||||
|
if (!scucd_area)
|
||||||
|
return -ENOMEM;
|
||||||
|
cd = kzalloc(sizeof(*cd), GFP_KERNEL);
|
||||||
|
if (!cd) {
|
||||||
|
ret = -ENOMEM;
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
if (copy_from_user(cd, user_cd, sizeof(*cd))) {
|
||||||
|
ret = -EFAULT;
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
scucd_area->request.length = 0x0010;
|
||||||
|
scucd_area->request.code = 0x0028;
|
||||||
|
scucd_area->m = cd->m;
|
||||||
|
scucd_area->fmt1 = cd->fmt;
|
||||||
|
scucd_area->cssid = cd->cssid;
|
||||||
|
scucd_area->first_cun = cd->cun;
|
||||||
|
scucd_area->last_cun = cd->cun;
|
||||||
|
|
||||||
|
ccode = chsc(scucd_area);
|
||||||
|
if (ccode != 0) {
|
||||||
|
ret = -EIO;
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
if (scucd_area->response.code != 0x0001) {
|
||||||
|
ret = -EIO;
|
||||||
|
CHSC_MSG(0, "scucd: response code=%x\n",
|
||||||
|
scucd_area->response.code);
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
memcpy(&cd->cucb, &scucd_area->response, scucd_area->response.length);
|
||||||
|
if (copy_to_user(user_cd, cd, sizeof(*cd)))
|
||||||
|
ret = -EFAULT;
|
||||||
|
else
|
||||||
|
ret = 0;
|
||||||
|
out_free:
|
||||||
|
kfree(cd);
|
||||||
|
free_page((unsigned long)scucd_area);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int chsc_ioctl_info_sch_cu(void __user *user_cud)
|
||||||
|
{
|
||||||
|
struct chsc_sch_cud *cud;
|
||||||
|
int ret, ccode;
|
||||||
|
struct {
|
||||||
|
struct chsc_header request;
|
||||||
|
u32 : 2;
|
||||||
|
u32 m : 1;
|
||||||
|
u32 : 5;
|
||||||
|
u32 fmt1 : 4;
|
||||||
|
u32 : 2;
|
||||||
|
u32 ssid : 2;
|
||||||
|
u32 first_sch : 16;
|
||||||
|
u32 : 8;
|
||||||
|
u32 cssid : 8;
|
||||||
|
u32 last_sch : 16;
|
||||||
|
u32 : 32;
|
||||||
|
struct chsc_header response;
|
||||||
|
u8 data[PAGE_SIZE - 20];
|
||||||
|
} __attribute__ ((packed)) *sscud_area;
|
||||||
|
|
||||||
|
sscud_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
|
||||||
|
if (!sscud_area)
|
||||||
|
return -ENOMEM;
|
||||||
|
cud = kzalloc(sizeof(*cud), GFP_KERNEL);
|
||||||
|
if (!cud) {
|
||||||
|
ret = -ENOMEM;
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
if (copy_from_user(cud, user_cud, sizeof(*cud))) {
|
||||||
|
ret = -EFAULT;
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
sscud_area->request.length = 0x0010;
|
||||||
|
sscud_area->request.code = 0x0006;
|
||||||
|
sscud_area->m = cud->schid.m;
|
||||||
|
sscud_area->fmt1 = cud->fmt;
|
||||||
|
sscud_area->ssid = cud->schid.ssid;
|
||||||
|
sscud_area->first_sch = cud->schid.sch_no;
|
||||||
|
sscud_area->cssid = cud->schid.cssid;
|
||||||
|
sscud_area->last_sch = cud->schid.sch_no;
|
||||||
|
|
||||||
|
ccode = chsc(sscud_area);
|
||||||
|
if (ccode != 0) {
|
||||||
|
ret = -EIO;
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
if (sscud_area->response.code != 0x0001) {
|
||||||
|
ret = -EIO;
|
||||||
|
CHSC_MSG(0, "sscud: response code=%x\n",
|
||||||
|
sscud_area->response.code);
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
memcpy(&cud->scub, &sscud_area->response, sscud_area->response.length);
|
||||||
|
if (copy_to_user(user_cud, cud, sizeof(*cud)))
|
||||||
|
ret = -EFAULT;
|
||||||
|
else
|
||||||
|
ret = 0;
|
||||||
|
out_free:
|
||||||
|
kfree(cud);
|
||||||
|
free_page((unsigned long)sscud_area);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int chsc_ioctl_conf_info(void __user *user_ci)
|
||||||
|
{
|
||||||
|
struct chsc_conf_info *ci;
|
||||||
|
int ret, ccode;
|
||||||
|
struct {
|
||||||
|
struct chsc_header request;
|
||||||
|
u32 : 2;
|
||||||
|
u32 m : 1;
|
||||||
|
u32 : 1;
|
||||||
|
u32 fmt1 : 4;
|
||||||
|
u32 cssid : 8;
|
||||||
|
u32 : 6;
|
||||||
|
u32 ssid : 2;
|
||||||
|
u32 : 8;
|
||||||
|
u64 : 64;
|
||||||
|
struct chsc_header response;
|
||||||
|
u8 data[PAGE_SIZE - 20];
|
||||||
|
} __attribute__ ((packed)) *sci_area;
|
||||||
|
|
||||||
|
sci_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
|
||||||
|
if (!sci_area)
|
||||||
|
return -ENOMEM;
|
||||||
|
ci = kzalloc(sizeof(*ci), GFP_KERNEL);
|
||||||
|
if (!ci) {
|
||||||
|
ret = -ENOMEM;
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
if (copy_from_user(ci, user_ci, sizeof(*ci))) {
|
||||||
|
ret = -EFAULT;
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
sci_area->request.length = 0x0010;
|
||||||
|
sci_area->request.code = 0x0012;
|
||||||
|
sci_area->m = ci->id.m;
|
||||||
|
sci_area->fmt1 = ci->fmt;
|
||||||
|
sci_area->cssid = ci->id.cssid;
|
||||||
|
sci_area->ssid = ci->id.ssid;
|
||||||
|
|
||||||
|
ccode = chsc(sci_area);
|
||||||
|
if (ccode != 0) {
|
||||||
|
ret = -EIO;
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
if (sci_area->response.code != 0x0001) {
|
||||||
|
ret = -EIO;
|
||||||
|
CHSC_MSG(0, "sci: response code=%x\n",
|
||||||
|
sci_area->response.code);
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
memcpy(&ci->scid, &sci_area->response, sci_area->response.length);
|
||||||
|
if (copy_to_user(user_ci, ci, sizeof(*ci)))
|
||||||
|
ret = -EFAULT;
|
||||||
|
else
|
||||||
|
ret = 0;
|
||||||
|
out_free:
|
||||||
|
kfree(ci);
|
||||||
|
free_page((unsigned long)sci_area);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int chsc_ioctl_conf_comp_list(void __user *user_ccl)
|
||||||
|
{
|
||||||
|
struct chsc_comp_list *ccl;
|
||||||
|
int ret, ccode;
|
||||||
|
struct {
|
||||||
|
struct chsc_header request;
|
||||||
|
u32 ctype : 8;
|
||||||
|
u32 : 4;
|
||||||
|
u32 fmt : 4;
|
||||||
|
u32 : 16;
|
||||||
|
u64 : 64;
|
||||||
|
u32 list_parm[2];
|
||||||
|
u64 : 64;
|
||||||
|
struct chsc_header response;
|
||||||
|
u8 data[PAGE_SIZE - 36];
|
||||||
|
} __attribute__ ((packed)) *sccl_area;
|
||||||
|
struct {
|
||||||
|
u32 m : 1;
|
||||||
|
u32 : 31;
|
||||||
|
u32 cssid : 8;
|
||||||
|
u32 : 16;
|
||||||
|
u32 chpid : 8;
|
||||||
|
} __attribute__ ((packed)) *chpid_parm;
|
||||||
|
struct {
|
||||||
|
u32 f_cssid : 8;
|
||||||
|
u32 l_cssid : 8;
|
||||||
|
u32 : 16;
|
||||||
|
u32 res;
|
||||||
|
} __attribute__ ((packed)) *cssids_parm;
|
||||||
|
|
||||||
|
sccl_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
|
||||||
|
if (!sccl_area)
|
||||||
|
return -ENOMEM;
|
||||||
|
ccl = kzalloc(sizeof(*ccl), GFP_KERNEL);
|
||||||
|
if (!ccl) {
|
||||||
|
ret = -ENOMEM;
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
if (copy_from_user(ccl, user_ccl, sizeof(*ccl))) {
|
||||||
|
ret = -EFAULT;
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
sccl_area->request.length = 0x0020;
|
||||||
|
sccl_area->request.code = 0x0030;
|
||||||
|
sccl_area->fmt = ccl->req.fmt;
|
||||||
|
sccl_area->ctype = ccl->req.ctype;
|
||||||
|
switch (sccl_area->ctype) {
|
||||||
|
case CCL_CU_ON_CHP:
|
||||||
|
case CCL_IOP_CHP:
|
||||||
|
chpid_parm = (void *)&sccl_area->list_parm;
|
||||||
|
chpid_parm->m = ccl->req.chpid.m;
|
||||||
|
chpid_parm->cssid = ccl->req.chpid.chp.cssid;
|
||||||
|
chpid_parm->chpid = ccl->req.chpid.chp.id;
|
||||||
|
break;
|
||||||
|
case CCL_CSS_IMG:
|
||||||
|
case CCL_CSS_IMG_CONF_CHAR:
|
||||||
|
cssids_parm = (void *)&sccl_area->list_parm;
|
||||||
|
cssids_parm->f_cssid = ccl->req.cssids.f_cssid;
|
||||||
|
cssids_parm->l_cssid = ccl->req.cssids.l_cssid;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
ccode = chsc(sccl_area);
|
||||||
|
if (ccode != 0) {
|
||||||
|
ret = -EIO;
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
if (sccl_area->response.code != 0x0001) {
|
||||||
|
ret = -EIO;
|
||||||
|
CHSC_MSG(0, "sccl: response code=%x\n",
|
||||||
|
sccl_area->response.code);
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
memcpy(&ccl->sccl, &sccl_area->response, sccl_area->response.length);
|
||||||
|
if (copy_to_user(user_ccl, ccl, sizeof(*ccl)))
|
||||||
|
ret = -EFAULT;
|
||||||
|
else
|
||||||
|
ret = 0;
|
||||||
|
out_free:
|
||||||
|
kfree(ccl);
|
||||||
|
free_page((unsigned long)sccl_area);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int chsc_ioctl_chpd(void __user *user_chpd)
|
||||||
|
{
|
||||||
|
struct chsc_cpd_info *chpd;
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
chpd = kzalloc(sizeof(*chpd), GFP_KERNEL);
|
||||||
|
if (!chpd)
|
||||||
|
return -ENOMEM;
|
||||||
|
if (copy_from_user(chpd, user_chpd, sizeof(*chpd))) {
|
||||||
|
ret = -EFAULT;
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
ret = chsc_determine_channel_path_desc(chpd->chpid, chpd->fmt,
|
||||||
|
chpd->rfmt, chpd->c, chpd->m,
|
||||||
|
&chpd->chpdb);
|
||||||
|
if (ret)
|
||||||
|
goto out_free;
|
||||||
|
if (copy_to_user(user_chpd, chpd, sizeof(*chpd)))
|
||||||
|
ret = -EFAULT;
|
||||||
|
out_free:
|
||||||
|
kfree(chpd);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int chsc_ioctl_dcal(void __user *user_dcal)
|
||||||
|
{
|
||||||
|
struct chsc_dcal *dcal;
|
||||||
|
int ret, ccode;
|
||||||
|
struct {
|
||||||
|
struct chsc_header request;
|
||||||
|
u32 atype : 8;
|
||||||
|
u32 : 4;
|
||||||
|
u32 fmt : 4;
|
||||||
|
u32 : 16;
|
||||||
|
u32 res0[2];
|
||||||
|
u32 list_parm[2];
|
||||||
|
u32 res1[2];
|
||||||
|
struct chsc_header response;
|
||||||
|
u8 data[PAGE_SIZE - 36];
|
||||||
|
} __attribute__ ((packed)) *sdcal_area;
|
||||||
|
|
||||||
|
sdcal_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
|
||||||
|
if (!sdcal_area)
|
||||||
|
return -ENOMEM;
|
||||||
|
dcal = kzalloc(sizeof(*dcal), GFP_KERNEL);
|
||||||
|
if (!dcal) {
|
||||||
|
ret = -ENOMEM;
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
if (copy_from_user(dcal, user_dcal, sizeof(*dcal))) {
|
||||||
|
ret = -EFAULT;
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
sdcal_area->request.length = 0x0020;
|
||||||
|
sdcal_area->request.code = 0x0034;
|
||||||
|
sdcal_area->atype = dcal->req.atype;
|
||||||
|
sdcal_area->fmt = dcal->req.fmt;
|
||||||
|
memcpy(&sdcal_area->list_parm, &dcal->req.list_parm,
|
||||||
|
sizeof(sdcal_area->list_parm));
|
||||||
|
|
||||||
|
ccode = chsc(sdcal_area);
|
||||||
|
if (ccode != 0) {
|
||||||
|
ret = -EIO;
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
if (sdcal_area->response.code != 0x0001) {
|
||||||
|
ret = -EIO;
|
||||||
|
CHSC_MSG(0, "sdcal: response code=%x\n",
|
||||||
|
sdcal_area->response.code);
|
||||||
|
goto out_free;
|
||||||
|
}
|
||||||
|
memcpy(&dcal->sdcal, &sdcal_area->response,
|
||||||
|
sdcal_area->response.length);
|
||||||
|
if (copy_to_user(user_dcal, dcal, sizeof(*dcal)))
|
||||||
|
ret = -EFAULT;
|
||||||
|
else
|
||||||
|
ret = 0;
|
||||||
|
out_free:
|
||||||
|
kfree(dcal);
|
||||||
|
free_page((unsigned long)sdcal_area);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
static long chsc_ioctl(struct file *filp, unsigned int cmd,
|
||||||
|
unsigned long arg)
|
||||||
|
{
|
||||||
|
CHSC_MSG(2, "chsc_ioctl called, cmd=%x\n", cmd);
|
||||||
|
switch (cmd) {
|
||||||
|
case CHSC_START:
|
||||||
|
return chsc_ioctl_start((void __user *)arg);
|
||||||
|
case CHSC_INFO_CHANNEL_PATH:
|
||||||
|
return chsc_ioctl_info_channel_path((void __user *)arg);
|
||||||
|
case CHSC_INFO_CU:
|
||||||
|
return chsc_ioctl_info_cu((void __user *)arg);
|
||||||
|
case CHSC_INFO_SCH_CU:
|
||||||
|
return chsc_ioctl_info_sch_cu((void __user *)arg);
|
||||||
|
case CHSC_INFO_CI:
|
||||||
|
return chsc_ioctl_conf_info((void __user *)arg);
|
||||||
|
case CHSC_INFO_CCL:
|
||||||
|
return chsc_ioctl_conf_comp_list((void __user *)arg);
|
||||||
|
case CHSC_INFO_CPD:
|
||||||
|
return chsc_ioctl_chpd((void __user *)arg);
|
||||||
|
case CHSC_INFO_DCAL:
|
||||||
|
return chsc_ioctl_dcal((void __user *)arg);
|
||||||
|
default: /* unknown ioctl number */
|
||||||
|
return -ENOIOCTLCMD;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct file_operations chsc_fops = {
|
||||||
|
.owner = THIS_MODULE,
|
||||||
|
.unlocked_ioctl = chsc_ioctl,
|
||||||
|
.compat_ioctl = chsc_ioctl,
|
||||||
|
};
|
||||||
|
|
||||||
|
static struct miscdevice chsc_misc_device = {
|
||||||
|
.minor = MISC_DYNAMIC_MINOR,
|
||||||
|
.name = "chsc",
|
||||||
|
.fops = &chsc_fops,
|
||||||
|
};
|
||||||
|
|
||||||
|
static int __init chsc_misc_init(void)
|
||||||
|
{
|
||||||
|
return misc_register(&chsc_misc_device);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void chsc_misc_cleanup(void)
|
||||||
|
{
|
||||||
|
misc_deregister(&chsc_misc_device);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int __init chsc_sch_init(void)
|
||||||
|
{
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
ret = chsc_init_dbfs();
|
||||||
|
if (ret)
|
||||||
|
return ret;
|
||||||
|
isc_register(CHSC_SCH_ISC);
|
||||||
|
ret = chsc_init_sch_driver();
|
||||||
|
if (ret)
|
||||||
|
goto out_dbf;
|
||||||
|
ret = chsc_misc_init();
|
||||||
|
if (ret)
|
||||||
|
goto out_driver;
|
||||||
|
return ret;
|
||||||
|
out_driver:
|
||||||
|
chsc_cleanup_sch_driver();
|
||||||
|
out_dbf:
|
||||||
|
isc_unregister(CHSC_SCH_ISC);
|
||||||
|
chsc_remove_dbfs();
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void __exit chsc_sch_exit(void)
|
||||||
|
{
|
||||||
|
chsc_misc_cleanup();
|
||||||
|
chsc_cleanup_sch_driver();
|
||||||
|
isc_unregister(CHSC_SCH_ISC);
|
||||||
|
chsc_remove_dbfs();
|
||||||
|
}
|
||||||
|
|
||||||
|
module_init(chsc_sch_init);
|
||||||
|
module_exit(chsc_sch_exit);
|
|
@ -0,0 +1,13 @@
|
||||||
|
#ifndef _CHSC_SCH_H
|
||||||
|
#define _CHSC_SCH_H
|
||||||
|
|
||||||
|
struct chsc_request {
|
||||||
|
struct completion completion;
|
||||||
|
struct irb irb;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct chsc_private {
|
||||||
|
struct chsc_request *request;
|
||||||
|
};
|
||||||
|
|
||||||
|
#endif
|
|
@ -877,6 +877,12 @@ __clear_io_subchannel_easy(struct subchannel_id schid)
|
||||||
return -EBUSY;
|
return -EBUSY;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
static void __clear_chsc_subchannel_easy(void)
|
||||||
|
{
|
||||||
|
/* It seems we can only wait for a bit here :/ */
|
||||||
|
udelay_reset(100);
|
||||||
|
}
|
||||||
|
|
||||||
static int pgm_check_occured;
|
static int pgm_check_occured;
|
||||||
|
|
||||||
static void cio_reset_pgm_check_handler(void)
|
static void cio_reset_pgm_check_handler(void)
|
||||||
|
@ -920,6 +926,9 @@ static int __shutdown_subchannel_easy(struct subchannel_id schid, void *data)
|
||||||
if (__clear_io_subchannel_easy(schid))
|
if (__clear_io_subchannel_easy(schid))
|
||||||
goto out; /* give up... */
|
goto out; /* give up... */
|
||||||
break;
|
break;
|
||||||
|
case SUBCHANNEL_TYPE_CHSC:
|
||||||
|
__clear_chsc_subchannel_easy();
|
||||||
|
break;
|
||||||
default:
|
default:
|
||||||
/* No default clear strategy */
|
/* No default clear strategy */
|
||||||
break;
|
break;
|
||||||
|
|
|
@ -7,8 +7,8 @@
|
||||||
#include <asm/chpid.h>
|
#include <asm/chpid.h>
|
||||||
#include <asm/cio.h>
|
#include <asm/cio.h>
|
||||||
#include <asm/fcx.h>
|
#include <asm/fcx.h>
|
||||||
|
#include <asm/schid.h>
|
||||||
#include "chsc.h"
|
#include "chsc.h"
|
||||||
#include "schid.h"
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* path management control word
|
* path management control word
|
||||||
|
|
|
@ -9,8 +9,7 @@
|
||||||
|
|
||||||
#include <asm/cio.h>
|
#include <asm/cio.h>
|
||||||
#include <asm/chpid.h>
|
#include <asm/chpid.h>
|
||||||
|
#include <asm/schid.h>
|
||||||
#include "schid.h"
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* path grouping stuff
|
* path grouping stuff
|
||||||
|
|
|
@ -8,7 +8,7 @@
|
||||||
#ifndef S390_IDSET_H
|
#ifndef S390_IDSET_H
|
||||||
#define S390_IDSET_H S390_IDSET_H
|
#define S390_IDSET_H S390_IDSET_H
|
||||||
|
|
||||||
#include "schid.h"
|
#include <asm/schid.h>
|
||||||
|
|
||||||
struct idset;
|
struct idset;
|
||||||
|
|
||||||
|
|
|
@ -1,7 +1,7 @@
|
||||||
#ifndef S390_IO_SCH_H
|
#ifndef S390_IO_SCH_H
|
||||||
#define S390_IO_SCH_H
|
#define S390_IO_SCH_H
|
||||||
|
|
||||||
#include "schid.h"
|
#include <asm/schid.h>
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* command-mode operation request block
|
* command-mode operation request block
|
||||||
|
|
|
@ -2,7 +2,7 @@
|
||||||
#define S390_CIO_IOASM_H
|
#define S390_CIO_IOASM_H
|
||||||
|
|
||||||
#include <asm/chpid.h>
|
#include <asm/chpid.h>
|
||||||
#include "schid.h"
|
#include <asm/schid.h>
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* TPI info structure
|
* TPI info structure
|
||||||
|
|
|
@ -3,8 +3,7 @@
|
||||||
|
|
||||||
#include <asm/page.h>
|
#include <asm/page.h>
|
||||||
#include <asm/isc.h>
|
#include <asm/isc.h>
|
||||||
|
#include <asm/schid.h>
|
||||||
#include "schid.h"
|
|
||||||
|
|
||||||
#ifdef CONFIG_QDIO_DEBUG
|
#ifdef CONFIG_QDIO_DEBUG
|
||||||
#define QDIO_VERBOSE_LEVEL 9
|
#define QDIO_VERBOSE_LEVEL 9
|
||||||
|
|
|
@ -8,6 +8,9 @@ header-y += ucontext.h
|
||||||
header-y += vtoc.h
|
header-y += vtoc.h
|
||||||
header-y += zcrypt.h
|
header-y += zcrypt.h
|
||||||
header-y += kvm.h
|
header-y += kvm.h
|
||||||
|
header-y += schid.h
|
||||||
|
header-y += chsc.h
|
||||||
|
|
||||||
unifdef-y += cmb.h
|
unifdef-y += cmb.h
|
||||||
unifdef-y += debug.h
|
unifdef-y += debug.h
|
||||||
|
unifdef-y += chpid.h
|
||||||
|
|
|
@ -10,7 +10,6 @@
|
||||||
|
|
||||||
#include <linux/string.h>
|
#include <linux/string.h>
|
||||||
#include <asm/types.h>
|
#include <asm/types.h>
|
||||||
#include <asm/cio.h>
|
|
||||||
|
|
||||||
#define __MAX_CHPID 255
|
#define __MAX_CHPID 255
|
||||||
|
|
||||||
|
@ -41,6 +40,9 @@ static inline void chp_id_next(struct chp_id *chpid)
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
#ifdef __KERNEL__
|
||||||
|
#include <asm/cio.h>
|
||||||
|
|
||||||
static inline int chp_id_is_valid(struct chp_id *chpid)
|
static inline int chp_id_is_valid(struct chp_id *chpid)
|
||||||
{
|
{
|
||||||
return (chpid->cssid <= __MAX_CSSID);
|
return (chpid->cssid <= __MAX_CSSID);
|
||||||
|
@ -49,5 +51,6 @@ static inline int chp_id_is_valid(struct chp_id *chpid)
|
||||||
|
|
||||||
#define chp_id_for_each(c) \
|
#define chp_id_for_each(c) \
|
||||||
for (chp_id_init(c); chp_id_is_valid(c); chp_id_next(c))
|
for (chp_id_init(c); chp_id_is_valid(c); chp_id_next(c))
|
||||||
|
#endif /* __KERNEL */
|
||||||
|
|
||||||
#endif /* _ASM_S390_CHPID_H */
|
#endif /* _ASM_S390_CHPID_H */
|
||||||
|
|
|
@ -0,0 +1,127 @@
|
||||||
|
/*
|
||||||
|
* ioctl interface for /dev/chsc
|
||||||
|
*
|
||||||
|
* Copyright 2008 IBM Corp.
|
||||||
|
* Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef _ASM_CHSC_H
|
||||||
|
#define _ASM_CHSC_H
|
||||||
|
|
||||||
|
#include <asm/chpid.h>
|
||||||
|
#include <asm/schid.h>
|
||||||
|
|
||||||
|
struct chsc_async_header {
|
||||||
|
__u16 length;
|
||||||
|
__u16 code;
|
||||||
|
__u32 cmd_dependend;
|
||||||
|
__u32 key : 4;
|
||||||
|
__u32 : 28;
|
||||||
|
struct subchannel_id sid;
|
||||||
|
} __attribute__ ((packed));
|
||||||
|
|
||||||
|
struct chsc_async_area {
|
||||||
|
struct chsc_async_header header;
|
||||||
|
__u8 data[PAGE_SIZE - 16 /* size of chsc_async_header */];
|
||||||
|
} __attribute__ ((packed));
|
||||||
|
|
||||||
|
|
||||||
|
struct chsc_response_struct {
|
||||||
|
__u16 length;
|
||||||
|
__u16 code;
|
||||||
|
__u32 parms;
|
||||||
|
__u8 data[PAGE_SIZE - 8];
|
||||||
|
} __attribute__ ((packed));
|
||||||
|
|
||||||
|
struct chsc_chp_cd {
|
||||||
|
struct chp_id chpid;
|
||||||
|
int m;
|
||||||
|
int fmt;
|
||||||
|
struct chsc_response_struct cpcb;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct chsc_cu_cd {
|
||||||
|
__u16 cun;
|
||||||
|
__u8 cssid;
|
||||||
|
int m;
|
||||||
|
int fmt;
|
||||||
|
struct chsc_response_struct cucb;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct chsc_sch_cud {
|
||||||
|
struct subchannel_id schid;
|
||||||
|
int fmt;
|
||||||
|
struct chsc_response_struct scub;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct conf_id {
|
||||||
|
int m;
|
||||||
|
__u8 cssid;
|
||||||
|
__u8 ssid;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct chsc_conf_info {
|
||||||
|
struct conf_id id;
|
||||||
|
int fmt;
|
||||||
|
struct chsc_response_struct scid;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct ccl_parm_chpid {
|
||||||
|
int m;
|
||||||
|
struct chp_id chp;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct ccl_parm_cssids {
|
||||||
|
__u8 f_cssid;
|
||||||
|
__u8 l_cssid;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct chsc_comp_list {
|
||||||
|
struct {
|
||||||
|
enum {
|
||||||
|
CCL_CU_ON_CHP = 1,
|
||||||
|
CCL_CHP_TYPE_CAP = 2,
|
||||||
|
CCL_CSS_IMG = 4,
|
||||||
|
CCL_CSS_IMG_CONF_CHAR = 5,
|
||||||
|
CCL_IOP_CHP = 6,
|
||||||
|
} ctype;
|
||||||
|
int fmt;
|
||||||
|
struct ccl_parm_chpid chpid;
|
||||||
|
struct ccl_parm_cssids cssids;
|
||||||
|
} req;
|
||||||
|
struct chsc_response_struct sccl;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct chsc_dcal {
|
||||||
|
struct {
|
||||||
|
enum {
|
||||||
|
DCAL_CSS_IID_PN = 4,
|
||||||
|
} atype;
|
||||||
|
__u32 list_parm[2];
|
||||||
|
int fmt;
|
||||||
|
} req;
|
||||||
|
struct chsc_response_struct sdcal;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct chsc_cpd_info {
|
||||||
|
struct chp_id chpid;
|
||||||
|
int m;
|
||||||
|
int fmt;
|
||||||
|
int rfmt;
|
||||||
|
int c;
|
||||||
|
struct chsc_response_struct chpdb;
|
||||||
|
};
|
||||||
|
|
||||||
|
#define CHSC_IOCTL_MAGIC 'c'
|
||||||
|
|
||||||
|
#define CHSC_START _IOWR(CHSC_IOCTL_MAGIC, 0x81, struct chsc_async_area)
|
||||||
|
#define CHSC_INFO_CHANNEL_PATH _IOWR(CHSC_IOCTL_MAGIC, 0x82, \
|
||||||
|
struct chsc_chp_cd)
|
||||||
|
#define CHSC_INFO_CU _IOWR(CHSC_IOCTL_MAGIC, 0x83, struct chsc_cu_cd)
|
||||||
|
#define CHSC_INFO_SCH_CU _IOWR(CHSC_IOCTL_MAGIC, 0x84, struct chsc_sch_cud)
|
||||||
|
#define CHSC_INFO_CI _IOWR(CHSC_IOCTL_MAGIC, 0x85, struct chsc_conf_info)
|
||||||
|
#define CHSC_INFO_CCL _IOWR(CHSC_IOCTL_MAGIC, 0x86, struct chsc_comp_list)
|
||||||
|
#define CHSC_INFO_CPD _IOWR(CHSC_IOCTL_MAGIC, 0x87, struct chsc_cpd_info)
|
||||||
|
#define CHSC_INFO_DCAL _IOWR(CHSC_IOCTL_MAGIC, 0x88, struct chsc_dcal)
|
||||||
|
|
||||||
|
#endif
|
|
@ -14,6 +14,7 @@
|
||||||
/* Regular I/O interrupts. */
|
/* Regular I/O interrupts. */
|
||||||
#define IO_SCH_ISC 3 /* regular I/O subchannels */
|
#define IO_SCH_ISC 3 /* regular I/O subchannels */
|
||||||
#define CONSOLE_ISC 1 /* console I/O subchannel */
|
#define CONSOLE_ISC 1 /* console I/O subchannel */
|
||||||
|
#define CHSC_SCH_ISC 7 /* CHSC subchannels */
|
||||||
/* Adapter interrupts. */
|
/* Adapter interrupts. */
|
||||||
#define QDIO_AIRQ_ISC IO_SCH_ISC /* I/O subchannel in qdio mode */
|
#define QDIO_AIRQ_ISC IO_SCH_ISC /* I/O subchannel in qdio mode */
|
||||||
|
|
||||||
|
|
|
@ -1,12 +1,14 @@
|
||||||
#ifndef S390_SCHID_H
|
#ifndef ASM_SCHID_H
|
||||||
#define S390_SCHID_H
|
#define ASM_SCHID_H
|
||||||
|
|
||||||
struct subchannel_id {
|
struct subchannel_id {
|
||||||
__u32 reserved:13;
|
__u32 cssid : 8;
|
||||||
__u32 ssid:2;
|
__u32 : 4;
|
||||||
__u32 one:1;
|
__u32 m : 1;
|
||||||
__u32 sch_no:16;
|
__u32 ssid : 2;
|
||||||
} __attribute__ ((packed,aligned(4)));
|
__u32 one : 1;
|
||||||
|
__u32 sch_no : 16;
|
||||||
|
} __attribute__ ((packed, aligned(4)));
|
||||||
|
|
||||||
|
|
||||||
/* Helper function for sane state of pre-allocated subchannel_id. */
|
/* Helper function for sane state of pre-allocated subchannel_id. */
|
||||||
|
@ -23,4 +25,4 @@ schid_equal(struct subchannel_id *schid1, struct subchannel_id *schid2)
|
||||||
return !memcmp(schid1, schid2, sizeof(struct subchannel_id));
|
return !memcmp(schid1, schid2, sizeof(struct subchannel_id));
|
||||||
}
|
}
|
||||||
|
|
||||||
#endif /* S390_SCHID_H */
|
#endif /* ASM_SCHID_H */
|
Loading…
Reference in New Issue