b831734a43
ensure I never add anything to the stack I don't absolutely need. All this debug code could be removed from a production build anyway so I'm not so worried about the performance impact. We may also consider revisting the mutex and condvar implementation to ensure no additional stack is used there. Initial indications are I have reduced the worst case stack usage to 9080 bytes. Still to large for the default 8k stacks so I have been forced to run with 16k stacks until I can reduce the worst offenders. git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@83 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
68 lines
2.0 KiB
C
68 lines
2.0 KiB
C
#ifndef _SPLAT_CTL_H
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#define _SPLAT_CTL_H
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/* Contains shared definitions which both the userspace
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* and kernelspace portions of splat must agree on.
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*/
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#define SPLAT_MAJOR 229 /* XXX - Arbitrary */
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#define SPLAT_MINORS 1
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#define SPLAT_DEV "/dev/splatctl"
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#define SPLAT_NAME_SIZE 12
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#define SPLAT_DESC_SIZE 60
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typedef struct splat_user {
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char name[SPLAT_NAME_SIZE]; /* short name */
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char desc[SPLAT_DESC_SIZE]; /* short description */
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int id; /* unique numeric id */
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} splat_user_t;
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#define SPLAT_CFG_MAGIC 0x15263748U
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typedef struct splat_cfg {
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unsigned int cfg_magic; /* Unique magic */
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int cfg_cmd; /* Config command */
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int cfg_arg1; /* Config command arg 1 */
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int cfg_rc1; /* Config response 1 */
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union {
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struct {
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int size;
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splat_user_t descs[0];
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} splat_subsystems;
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struct {
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int size;
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splat_user_t descs[0];
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} splat_tests;
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} cfg_data;
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} splat_cfg_t;
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#define SPLAT_CMD_MAGIC 0x9daebfc0U
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typedef struct splat_cmd {
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unsigned int cmd_magic; /* Unique magic */
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int cmd_subsystem; /* Target subsystem */
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int cmd_test; /* Subsystem test */
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int cmd_data_size; /* Extra opaque data */
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char cmd_data_str[0]; /* Opaque data region */
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} splat_cmd_t;
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/* Valid ioctls */
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#define SPLAT_CFG _IOWR('f', 101, long)
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#define SPLAT_CMD _IOWR('f', 102, long)
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/* Valid configuration commands */
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#define SPLAT_CFG_BUFFER_CLEAR 0x001 /* Clear text buffer */
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#define SPLAT_CFG_BUFFER_SIZE 0x002 /* Resize text buffer */
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#define SPLAT_CFG_SUBSYSTEM_COUNT 0x101 /* Number of subsystem */
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#define SPLAT_CFG_SUBSYSTEM_LIST 0x102 /* List of N subsystems */
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#define SPLAT_CFG_TEST_COUNT 0x201 /* Number of tests */
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#define SPLAT_CFG_TEST_LIST 0x202 /* List of N tests */
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/* Valid subsystem and test commands defined in each subsystem, we do
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* need to be careful to avoid colisions. That alone may argue to define
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* them all here, for now we just define the global error codes.
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*/
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#define SPLAT_SUBSYSTEM_UNKNOWN 0xF00
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#define SPLAT_TEST_UNKNOWN 0xFFF
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#endif /* _SPLAT_CTL_H */
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