#include <linux/spinlock.h>
#include <asm/unistd.h>
#include <acbdef.h>
#include <aqbdef.h>
#include <cdrpdef.h>
#include <ddtdef.h>
#include <dyndef.h>
#include <fdtdef.h>
#include <ipl.h>
#include <internals.h>
#include <iodef.h>
#include <ipldef.h>
#include <irpdef.h>
#include <pridef.h>
#include <ssdef.h>
#include <starlet.h>
#include <system_data_cells.h>
#include <ucbdef.h>
#include <vcbdef.h>
#include <linux/vmalloc.h>
#include <linux/linkage.h>
#include <linux/kernel.h>
#include <asm/hw_irq.h>
#include "../../starlet/src/sysdep.h"
#include <exe_routines.h>
#include <misc_routines.h>
#include <sch_routines.h>
#include <ioc_routines.h>
#include <queue.h>
#include <linux/slab.h>
Go to the source code of this file.
Defines | |
| #define | MYDEB_IRP |
Functions | |
| void | exe_qioqe2ppkt (struct _pcb *p, struct _irp *i) |
| void | exe_qioqxqppkt (struct _pcb *p, struct _irp *i) |
| initiating file system i/o for XQP ODS2 - see 5.2 22.2.3 | |
| void | exe_insertirp (struct _ucb *u, struct _irp *i) |
| insert irp in units queue - see 5.2 22.2.1 | |
| int | exe_std_abortio (struct _irp *i, struct _pcb *p, struct _ucb *u, int qio_sts) |
| abort i/o operation - see 5.2 21.6.3.2 | |
| void | exe_altqueuepkt (void) |
| int | exe_altquepkt (struct _irp *i, struct _pcb *p, struct _ucb *u) |
| entering the driver's alternate start i/o routine - see 5.2 22.2.2 | |
| int | exe_finishio (long status1, long status2, struct _irp *i, struct _pcb *p, struct _ucb *u) |
| completing the i/o request in the fdt routine - see 5.2 21.6.3.3 | |
| int | exe_finishioc (long status, struct _irp *i, struct _pcb *p, struct _ucb *u) |
| completing the i/o request in the fdt routine - see 5.2 21.6.3.3 | |
| int | exe_insioq (struct _irp *i, struct _ucb *u) |
| insert irp in units queue - see 5.2 22.2.1 | |
| int | sys_qio (unsigned int efn, unsigned short int chan, unsigned int func, struct _iosb *iosb, void(*astadr)(__unknown_params), long astprm, void *p1, long p2, long p3, long p4, long p5, long p6) |
| asmlinkage int | exe_qiow (unsigned int efn, unsigned short int chan, unsigned int func, struct _iosb *iosb, void(*astadr)(__unknown_params), long astprm, void *p1, long p2, long p3, long p4, long p5, long p6) |
| asmlinkage int | exe_qio (unsigned int efn, unsigned short int chan, unsigned int func, struct _iosb *iosb, void(*astadr)(__unknown_params), long astprm, void *p1, long p2, long p3, long p4, long p5, long p6) |
| initiating device action - see 5.2 21.6.1 | |
| int | exe_qioacppkt (struct _irp *i, struct _pcb *p, struct _ucb *u) |
| initiating file system i/o - see 5.2 22.2.3 | |
| int | exe_qiodrvpkt (struct _irp *i, struct _pcb *p, struct _ucb *u) |
| entering the driver's start i/o routine - see 5.2 22.2.1 | |
| int | exe_std_qiodrvpkt (struct _irp *i, struct _ucb *u) |
| f11b_dispatch () | |
| exttwo_dispatch () | |
| asmlinkage int | exe_qiow_wrap (struct struct_qio *s) |
| initiating file system i/o for XQP(?) EXT2 | |
| asmlinkage int | exe_qio_wrap (struct struct_qio *s) |
Definition in file sysqioreq.c.
| #define MYDEB_IRP |
Definition at line 44 of file sysqioreq.c.
entering the driver's alternate start i/o routine - see 5.2 22.2.2
| i | irp | |
| p | pcb | |
| u | ucb |
forklock
smp stuff - MISSING
locate ddt_l_altstart
call it
unlock fork
Definition at line 111 of file sysqioreq.c.
References _ddt::ddt_l_altstart, forklock(), forkunlock(), SS__NORMAL, _ucb::ucb_b_flck, and _ucb::ucb_l_ddt.
| void exe_altqueuepkt | ( | void | ) |
Definition at line 102 of file sysqioreq.c.
completing the i/o request in the fdt routine - see 5.2 21.6.3.3
| status1 | ||
| status2 | ||
| i | irp | |
| p | pcb | |
| u | ucb |
incr ucb operation count - MISSING
store statuses in irp iost/media
do forklock
insert irp in cpu's postprocessing queue. TODO check if only for the primary cpu
unlock forklock
set ipl 0
SS__NORMAL for QIO return value
Definition at line 138 of file sysqioreq.c.
References forklock(), forkunlock(), _irp::irp_l_iost1, _irp::irp_l_iost2, smp_gl_cpu_data, SS__NORMAL, and _ucb::ucb_b_flck.
Referenced by exe_finishioc(), and mb_fdt_sensemode().
completing the i/o request in the fdt routine - see 5.2 21.6.3.3
| status | ||
| i | irp | |
| p | pcb | |
| u | ucb |
just go to finish io
Definition at line 164 of file sysqioreq.c.
References exe_finishio().
Referenced by mb_fdt_read(), mb_fdt_setmode(), and mb_fdt_write().
insert irp in units queue - see 5.2 22.2.1
| u | unit cb | |
| i | irp |
find right pri
insert at that pri
Definition at line 60 of file sysqioreq.c.
References _irp::irp_b_pri, _irp::irp_l_ioqfl, and _ucb::ucb_l_ioqfl.
Referenced by exe_insioq().
insert irp in units queue - see 5.2 22.2.1
| i | irp | |
| u | ucb unit |
forklock and raise ipl
if unit busy, just insert
else mark busy and initiate i/o
restore ipl
release fork lock
Definition at line 175 of file sysqioreq.c.
References exe_insertirp(), forklock(), forkunlock(), ioc_initiate(), SS__NORMAL, _ucb::ucb_b_flck, and _ucb::ucb_l_sts.
Referenced by exe_qiodrvpkt().
| asmlinkage int exe_qio | ( | unsigned int | efn, | |
| unsigned short int | chan, | |||
| unsigned int | func, | |||
| struct _iosb * | iosb, | |||
| void(*)(__unknown_params) | astadr, | |||
| long | astprm, | |||
| void * | p1, | |||
| long | p2, | |||
| long | p3, | |||
| long | p4, | |||
| long | p5, | |||
| long | p6 | |||
| ) |
initiating device action - see 5.2 21.6.1
| efn | event flag | |
| chan | i/o channel | |
| func | function | |
| iosb | i/o status block | |
| astadr | ast routine | |
| astprm | ast parameter | |
| p1-p6 |
clear event flag
verify channel number TODO redo
access mode check - MISSING
access or deaccess pending in ccb_l_wind stuff - MISSING
device spooled stuff - MISSING
access check verify - MISSING
check fdt mask to get buffer or whatever type - MISSING TODO check
check func code legality - MISSING
some check for offline device - MISSING
if iosb nonzero check iosb writeable - TODO redo
raise ipl
check proc quota - MISSING
allocate irp
initialize irp
do not set bufio if function code does not say buffered - MISSING
set quota bit - MISSING
if astadr nonzero charge quota - MISSING
if ccb_l_wind nonzero store in irp - MISSING
ccb increase outstanding i/o count - MISSING
some more device access checks - MISSING
diagnostic buffer - MISSING
do preprocessing - MISSING TODO check it
TODO does it do one or more functions
call i/o function
invoke event flag poster
if error, do abortio - MISSING
Definition at line 250 of file sysqioreq.c.
References _pcb, ctl_ga_ccb_table, ctl_gl_chindx, exe_clref(), exe_gl_abstim_tics, IPL__ASTDEL, _irp::irp_b_efn, _irp::irp_b_pri, _irp::irp_b_rmod, _irp::irp_b_type, _irp::irp_l_ast, _irp::irp_l_astprm, _irp::irp_l_func, _irp::irp_l_iosb, _irp::irp_l_pid, _irp::irp_l_qio_p1, _irp::irp_l_qio_p2, _irp::irp_l_qio_p3, _irp::irp_l_qio_p4, _irp::irp_l_qio_p5, _irp::irp_l_qio_p6, _irp::irp_l_sts, _irp::irp_l_ucb, _irp::irp_v_fcode, _irp::irp_v_fmod, _irp::irp_w_chan, _irp::irp_w_empty, kmalloc(), sch_postef(), and SS__ILLIOFUNC.
Referenced by exe_qio_wrap().
| asmlinkage int exe_qio_wrap | ( | struct struct_qio * | s | ) |
Definition at line 477 of file sysqioreq.c.
References struct_qio::astadr, struct_qio::astprm, struct_qio::chan, struct_qio::efn, exe_qio(), struct_qio::func, struct_qio::iosb, struct_qio::p1, struct_qio::p2, struct_qio::p3, struct_qio::p4, struct_qio::p5, and struct_qio::p6.
initiating file system i/o - see 5.2 22.2.3
| i | irp | |
| p | pcb | |
| u | ucb unit |
locate vcb
locate aqb
if pid zero use XQP
one temporary FreeVMS hacks in the if for ext2
insert irp into aqbs i/o queue
return if it was not empty before insert
spinlock and unlock TODO specified where?
invoke wakeup
TODO check ipl 0
TODO return val from sch_wake
Definition at line 365 of file sysqioreq.c.
References _aqb::aqb_l_acppid, _aqb::aqb_l_acpqfl, exe_qioqe2ppkt(), exe_qioqxqppkt(), IPL__SCHED, sch_wake(), SPIN_SCHED, SS__NORMAL, _ucb::ucb_l_vcb, and _vcb::vcb_l_aqb.
Referenced by acp_std_access(), acp_std_deaccess(), acp_std_modify(), acp_std_mount(), acp_std_readblk(), and acp_std_writeblk().
entering the driver's start i/o routine - see 5.2 22.2.1
| i | irp | |
| p | pcb | |
| u | ucb |
insert irp in ucb
setipl 0
Definition at line 406 of file sysqioreq.c.
References exe_insioq(), and SS__NORMAL.
Referenced by acp_std_readblk(), acp_std_writeblk(), and exe_std_qiodrvpkt().
| void exe_qioqe2ppkt | ( | struct _pcb * | p, | |
| struct _irp * | i | |||
| ) |
Referenced by exe_qioacppkt().
| void exe_qioqxqppkt | ( | struct _pcb * | p, | |
| struct _irp * | i | |||
| ) |
initiating file system i/o for XQP ODS2 - see 5.2 22.2.3
| i | irp | |
| p | pcb |
getting the xqp data area is not used anymore?
get address of dispatch routine and fill out acb
call sch_qast to queue ast
set ipl 0
Definition at line 428 of file sysqioreq.c.
References _acb::acb_b_rmod, _acb::acb_l_ast, _acb::acb_l_astprm, _acb::acb_l_pid, and sch_qast().
Referenced by exe_qioacppkt().
| asmlinkage int exe_qiow | ( | unsigned int | efn, | |
| unsigned short int | chan, | |||
| unsigned int | func, | |||
| struct _iosb * | iosb, | |||
| void(*)(__unknown_params) | astadr, | |||
| long | astprm, | |||
| void * | p1, | |||
| long | p2, | |||
| long | p3, | |||
| long | p4, | |||
| long | p5, | |||
| long | p6 | |||
| ) |
Definition at line 215 of file sysqioreq.c.
References struct_qio::astadr, exe_synch(), and sys_qio().
Referenced by block_read_full_page2(), block_read_full_page3(), bread(), exe_qiow_wrap(), and generic_direct_IO().
| asmlinkage int exe_qiow_wrap | ( | struct struct_qio * | s | ) |
initiating file system i/o for XQP(?) EXT2
| i | irp | |
| p | pcb |
Definition at line 473 of file sysqioreq.c.
References struct_qio::astadr, struct_qio::astprm, struct_qio::chan, struct_qio::efn, exe_qiow(), struct_qio::func, struct_qio::iosb, struct_qio::p1, struct_qio::p2, struct_qio::p3, struct_qio::p4, struct_qio::p5, and struct_qio::p6.
abort i/o operation - see 5.2 21.6.3.2
| i | irp | |
| p | pcb | |
| u | ucb | |
| qio_sts |
acquire forklock etc
clear iosb
inc process ast quota if v_quota was set - MISSING
insert irp in cpu's postprocessing queue
request iopost softint
release forklock
set ipl 0 - MISSING
Definition at line 79 of file sysqioreq.c.
References forklock(), forkunlock(), _irp::irp_b_rmod, _irp::irp_l_iosb, smp_gl_cpu_data, and _ucb::ucb_b_flck.
Referenced by mb_fdt_read(), and mb_fdt_write().
| exttwo_dispatch | ( | ) |
| f11b_dispatch | ( | ) |
| int sys_qio | ( | unsigned int | efn, | |
| unsigned short int | chan, | |||
| unsigned int | func, | |||
| struct _iosb * | iosb, | |||
| void(*)(__unknown_params) | astadr, | |||
| long | astprm, | |||
| void * | p1, | |||
| long | p2, | |||
| long | p3, | |||
| long | p4, | |||
| long | p5, | |||
| long | p6 | |||
| ) |
1.5.5