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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/s390/cio/chsc.h
downloadvexpress-lsk-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/s390/cio/chsc.h')
-rw-r--r--drivers/s390/cio/chsc.h66
1 files changed, 66 insertions, 0 deletions
diff --git a/drivers/s390/cio/chsc.h b/drivers/s390/cio/chsc.h
new file mode 100644
index 00000000000..be20da49d14
--- /dev/null
+++ b/drivers/s390/cio/chsc.h
@@ -0,0 +1,66 @@
+#ifndef S390_CHSC_H
+#define S390_CHSC_H
+
+#define NR_CHPIDS 256
+
+#define CHSC_SEI_ACC_CHPID 1
+#define CHSC_SEI_ACC_LINKADDR 2
+#define CHSC_SEI_ACC_FULLLINKADDR 3
+
+struct chsc_header {
+ u16 length;
+ u16 code;
+};
+
+struct channel_path_desc {
+ u8 flags;
+ u8 lsn;
+ u8 desc;
+ u8 chpid;
+ u8 swla;
+ u8 zeroes;
+ u8 chla;
+ u8 chpp;
+};
+
+struct channel_path {
+ int id;
+ int state;
+ struct channel_path_desc desc;
+ struct device dev;
+};
+
+extern void s390_process_css( void );
+extern void chsc_validate_chpids(struct subchannel *);
+extern void chpid_is_actually_online(int);
+
+struct css_general_char {
+ u64 : 41;
+ u32 aif : 1; /* bit 41 */
+ u32 : 3;
+ u32 mcss : 1; /* bit 45 */
+ u32 : 2;
+ u32 ext_mb : 1; /* bit 48 */
+ u32 : 7;
+ u32 aif_tdd : 1; /* bit 56 */
+ u32 : 10;
+ u32 aif_osa : 1; /* bit 67 */
+ u32 : 28;
+}__attribute__((packed));
+
+struct css_chsc_char {
+ u64 res;
+ u64 : 43;
+ u32 scssc : 1; /* bit 107 */
+ u32 scsscf : 1; /* bit 108 */
+ u32 : 19;
+}__attribute__((packed));
+
+extern struct css_general_char css_general_characteristics;
+extern struct css_chsc_char css_chsc_characteristics;
+
+extern int chsc_determine_css_characteristics(void);
+extern int css_characteristics_avail;
+
+extern void *chsc_get_chp_desc(struct subchannel*, int);
+#endif