1da177e4c3
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!
886 lines
24 KiB
C
886 lines
24 KiB
C
/* $Id: um_idi.c,v 1.14 2004/03/21 17:54:37 armin Exp $ */
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#include "platform.h"
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#include "di_defs.h"
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#include "pc.h"
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#include "dqueue.h"
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#include "adapter.h"
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#include "entity.h"
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#include "um_xdi.h"
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#include "um_idi.h"
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#include "debuglib.h"
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#include "divasync.h"
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#define DIVAS_MAX_XDI_ADAPTERS 64
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/* --------------------------------------------------------------------------
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IMPORTS
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-------------------------------------------------------------------------- */
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extern void diva_os_wakeup_read(void *os_context);
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extern void diva_os_wakeup_close(void *os_context);
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/* --------------------------------------------------------------------------
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LOCALS
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-------------------------------------------------------------------------- */
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static LIST_HEAD(adapter_q);
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static diva_os_spin_lock_t adapter_lock;
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static diva_um_idi_adapter_t *diva_um_idi_find_adapter(dword nr);
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static void cleanup_adapter(diva_um_idi_adapter_t * a);
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static void cleanup_entity(divas_um_idi_entity_t * e);
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static int diva_user_mode_idi_adapter_features(diva_um_idi_adapter_t * a,
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diva_um_idi_adapter_features_t
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* features);
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static int process_idi_request(divas_um_idi_entity_t * e,
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const diva_um_idi_req_hdr_t * req);
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static int process_idi_rc(divas_um_idi_entity_t * e, byte rc);
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static int process_idi_ind(divas_um_idi_entity_t * e, byte ind);
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static int write_return_code(divas_um_idi_entity_t * e, byte rc);
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/* --------------------------------------------------------------------------
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MAIN
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-------------------------------------------------------------------------- */
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int diva_user_mode_idi_init(void)
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{
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diva_os_initialize_spin_lock(&adapter_lock, "adapter");
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return (0);
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}
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/* --------------------------------------------------------------------------
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Copy adapter features to user supplied buffer
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-------------------------------------------------------------------------- */
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static int
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diva_user_mode_idi_adapter_features(diva_um_idi_adapter_t * a,
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diva_um_idi_adapter_features_t *
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features)
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{
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IDI_SYNC_REQ sync_req;
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if ((a) && (a->d.request)) {
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features->type = a->d.type;
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features->features = a->d.features;
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features->channels = a->d.channels;
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memset(features->name, 0, sizeof(features->name));
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sync_req.GetName.Req = 0;
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sync_req.GetName.Rc = IDI_SYNC_REQ_GET_NAME;
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(*(a->d.request)) ((ENTITY *) & sync_req);
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strlcpy(features->name, sync_req.GetName.name,
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sizeof(features->name));
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sync_req.GetSerial.Req = 0;
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sync_req.GetSerial.Rc = IDI_SYNC_REQ_GET_SERIAL;
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sync_req.GetSerial.serial = 0;
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(*(a->d.request)) ((ENTITY *) & sync_req);
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features->serial_number = sync_req.GetSerial.serial;
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}
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return ((a) ? 0 : -1);
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}
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/* --------------------------------------------------------------------------
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REMOVE ADAPTER
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-------------------------------------------------------------------------- */
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void diva_user_mode_idi_remove_adapter(int adapter_nr)
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{
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struct list_head *tmp;
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diva_um_idi_adapter_t *a;
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list_for_each(tmp, &adapter_q) {
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a = list_entry(tmp, diva_um_idi_adapter_t, link);
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if (a->adapter_nr == adapter_nr) {
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list_del(tmp);
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cleanup_adapter(a);
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DBG_LOG(("DIDD: del adapter(%d)", a->adapter_nr));
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diva_os_free(0, a);
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break;
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}
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}
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}
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/* --------------------------------------------------------------------------
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CALLED ON DRIVER EXIT (UNLOAD)
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-------------------------------------------------------------------------- */
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void diva_user_mode_idi_finit(void)
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{
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struct list_head *tmp, *safe;
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diva_um_idi_adapter_t *a;
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list_for_each_safe(tmp, safe, &adapter_q) {
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a = list_entry(tmp, diva_um_idi_adapter_t, link);
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list_del(tmp);
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cleanup_adapter(a);
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DBG_LOG(("DIDD: del adapter(%d)", a->adapter_nr));
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diva_os_free(0, a);
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}
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diva_os_destroy_spin_lock(&adapter_lock, "adapter");
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}
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/* -------------------------------------------------------------------------
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CREATE AND INIT IDI ADAPTER
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------------------------------------------------------------------------- */
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int diva_user_mode_idi_create_adapter(const DESCRIPTOR * d, int adapter_nr)
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{
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diva_os_spin_lock_magic_t old_irql;
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diva_um_idi_adapter_t *a =
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(diva_um_idi_adapter_t *) diva_os_malloc(0,
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sizeof
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(diva_um_idi_adapter_t));
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if (!a) {
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return (-1);
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}
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memset(a, 0x00, sizeof(*a));
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INIT_LIST_HEAD(&a->entity_q);
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a->d = *d;
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a->adapter_nr = adapter_nr;
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DBG_LOG(("DIDD_ADD A(%d), type:%02x, features:%04x, channels:%d",
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adapter_nr, a->d.type, a->d.features, a->d.channels));
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diva_os_enter_spin_lock(&adapter_lock, &old_irql, "create_adapter");
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list_add_tail(&a->link, &adapter_q);
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diva_os_leave_spin_lock(&adapter_lock, &old_irql, "create_adapter");
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return (0);
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}
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/* ------------------------------------------------------------------------
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Find adapter by Adapter number
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------------------------------------------------------------------------ */
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static diva_um_idi_adapter_t *diva_um_idi_find_adapter(dword nr)
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{
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diva_um_idi_adapter_t *a = NULL;
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struct list_head *tmp;
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list_for_each(tmp, &adapter_q) {
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a = list_entry(tmp, diva_um_idi_adapter_t, link);
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DBG_TRC(("find_adapter: (%d)-(%d)", nr, a->adapter_nr));
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if (a->adapter_nr == (int)nr)
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break;
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a = NULL;
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}
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return(a);
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}
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/* ------------------------------------------------------------------------
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Cleanup this adapter and cleanup/delete all entities assigned
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to this adapter
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------------------------------------------------------------------------ */
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static void cleanup_adapter(diva_um_idi_adapter_t * a)
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{
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struct list_head *tmp, *safe;
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divas_um_idi_entity_t *e;
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list_for_each_safe(tmp, safe, &a->entity_q) {
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e = list_entry(tmp, divas_um_idi_entity_t, link);
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list_del(tmp);
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cleanup_entity(e);
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if (e->os_context) {
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diva_os_wakeup_read(e->os_context);
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diva_os_wakeup_close(e->os_context);
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}
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}
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memset(&a->d, 0x00, sizeof(DESCRIPTOR));
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}
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/* ------------------------------------------------------------------------
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Cleanup, but NOT delete this entity
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------------------------------------------------------------------------ */
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static void cleanup_entity(divas_um_idi_entity_t * e)
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{
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e->os_ref = NULL;
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e->status = 0;
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e->adapter = NULL;
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e->e.Id = 0;
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e->rc_count = 0;
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e->status |= DIVA_UM_IDI_REMOVED;
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e->status |= DIVA_UM_IDI_REMOVE_PENDING;
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diva_data_q_finit(&e->data);
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diva_data_q_finit(&e->rc);
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}
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/* ------------------------------------------------------------------------
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Create ENTITY, link it to the adapter and remove pointer to entity
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------------------------------------------------------------------------ */
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void *divas_um_idi_create_entity(dword adapter_nr, void *file)
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{
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divas_um_idi_entity_t *e;
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diva_um_idi_adapter_t *a;
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diva_os_spin_lock_magic_t old_irql;
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if ((e = (divas_um_idi_entity_t *) diva_os_malloc(0, sizeof(*e)))) {
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memset(e, 0x00, sizeof(*e));
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if (!
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(e->os_context =
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diva_os_malloc(0, diva_os_get_context_size()))) {
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DBG_LOG(("E(%08x) no memory for os context", e));
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diva_os_free(0, e);
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return NULL;
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}
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memset(e->os_context, 0x00, diva_os_get_context_size());
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if ((diva_data_q_init(&e->data, 2048 + 512, 16))) {
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diva_os_free(0, e->os_context);
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diva_os_free(0, e);
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return NULL;
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}
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if ((diva_data_q_init(&e->rc, sizeof(diva_um_idi_ind_hdr_t), 2))) {
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diva_data_q_finit(&e->data);
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diva_os_free(0, e->os_context);
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diva_os_free(0, e);
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return NULL;
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}
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diva_os_enter_spin_lock(&adapter_lock, &old_irql, "create_entity");
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/*
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Look for Adapter requested
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*/
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if (!(a = diva_um_idi_find_adapter(adapter_nr))) {
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/*
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No adapter was found, or this adapter was removed
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*/
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diva_os_leave_spin_lock(&adapter_lock, &old_irql, "create_entity");
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DBG_LOG(("A: no adapter(%ld)", adapter_nr));
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cleanup_entity(e);
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diva_os_free(0, e->os_context);
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diva_os_free(0, e);
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return NULL;
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}
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e->os_ref = file; /* link to os handle */
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e->adapter = a; /* link to adapter */
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list_add_tail(&e->link, &a->entity_q); /* link from adapter */
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diva_os_leave_spin_lock(&adapter_lock, &old_irql, "create_entity");
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DBG_LOG(("A(%ld), create E(%08x)", adapter_nr, e));
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}
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return (e);
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}
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/* ------------------------------------------------------------------------
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Unlink entity and free memory
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------------------------------------------------------------------------ */
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int divas_um_idi_delete_entity(int adapter_nr, void *entity)
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{
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divas_um_idi_entity_t *e;
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diva_um_idi_adapter_t *a;
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diva_os_spin_lock_magic_t old_irql;
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if (!(e = (divas_um_idi_entity_t *) entity))
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return (-1);
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diva_os_enter_spin_lock(&adapter_lock, &old_irql, "delete_entity");
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if ((a = e->adapter)) {
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list_del(&e->link);
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}
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diva_os_leave_spin_lock(&adapter_lock, &old_irql, "delete_entity");
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diva_um_idi_stop_wdog(entity);
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cleanup_entity(e);
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diva_os_free(0, e->os_context);
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memset(e, 0x00, sizeof(*e));
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diva_os_free(0, e);
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DBG_LOG(("A(%d) remove E:%08x", adapter_nr, e));
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return (0);
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}
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/* --------------------------------------------------------------------------
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Called by application to read data from IDI
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-------------------------------------------------------------------------- */
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int diva_um_idi_read(void *entity,
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void *os_handle,
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void *dst,
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int max_length, divas_um_idi_copy_to_user_fn_t cp_fn)
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{
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divas_um_idi_entity_t *e;
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diva_um_idi_adapter_t *a;
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const void *data;
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int length, ret = 0;
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diva_um_idi_data_queue_t *q;
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diva_os_spin_lock_magic_t old_irql;
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diva_os_enter_spin_lock(&adapter_lock, &old_irql, "read");
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e = (divas_um_idi_entity_t *) entity;
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if (!e || (!(a = e->adapter)) ||
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(e->status & DIVA_UM_IDI_REMOVE_PENDING) ||
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(e->status & DIVA_UM_IDI_REMOVED) ||
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(a->status & DIVA_UM_IDI_ADAPTER_REMOVED)) {
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diva_os_leave_spin_lock(&adapter_lock, &old_irql, "read");
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DBG_ERR(("E(%08x) read failed - adapter removed", e))
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return (-1);
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}
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DBG_TRC(("A(%d) E(%08x) read(%d)", a->adapter_nr, e, max_length));
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/*
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Try to read return code first
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*/
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data = diva_data_q_get_segment4read(&e->rc);
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q = &e->rc;
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/*
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No return codes available, read indications now
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*/
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if (!data) {
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if (!(e->status & DIVA_UM_IDI_RC_PENDING)) {
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DBG_TRC(("A(%d) E(%08x) read data", a->adapter_nr, e));
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data = diva_data_q_get_segment4read(&e->data);
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q = &e->data;
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}
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} else {
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e->status &= ~DIVA_UM_IDI_RC_PENDING;
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DBG_TRC(("A(%d) E(%08x) read rc", a->adapter_nr, e));
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}
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if (data) {
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if ((length = diva_data_q_get_segment_length(q)) >
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max_length) {
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/*
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Not enough space to read message
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*/
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DBG_ERR(("A: A(%d) E(%08x) read small buffer",
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a->adapter_nr, e, ret));
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diva_os_leave_spin_lock(&adapter_lock, &old_irql,
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"read");
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return (-2);
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}
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/*
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Copy it to user, this function does access ONLY locked an verified
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memory, also we can access it witch spin lock held
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*/
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if ((ret = (*cp_fn) (os_handle, dst, data, length)) >= 0) {
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/*
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Acknowledge only if read was successfull
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*/
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diva_data_q_ack_segment4read(q);
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}
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}
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DBG_TRC(("A(%d) E(%08x) read=%d", a->adapter_nr, e, ret));
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diva_os_leave_spin_lock(&adapter_lock, &old_irql, "read");
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return (ret);
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}
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int diva_um_idi_write(void *entity,
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void *os_handle,
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const void *src,
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int length, divas_um_idi_copy_from_user_fn_t cp_fn)
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{
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divas_um_idi_entity_t *e;
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diva_um_idi_adapter_t *a;
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diva_um_idi_req_hdr_t *req;
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void *data;
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int ret = 0;
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diva_os_spin_lock_magic_t old_irql;
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diva_os_enter_spin_lock(&adapter_lock, &old_irql, "write");
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e = (divas_um_idi_entity_t *) entity;
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if (!e || (!(a = e->adapter)) ||
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(e->status & DIVA_UM_IDI_REMOVE_PENDING) ||
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(e->status & DIVA_UM_IDI_REMOVED) ||
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(a->status & DIVA_UM_IDI_ADAPTER_REMOVED)) {
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diva_os_leave_spin_lock(&adapter_lock, &old_irql, "write");
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DBG_ERR(("E(%08x) write failed - adapter removed", e))
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return (-1);
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}
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DBG_TRC(("A(%d) E(%08x) write(%d)", a->adapter_nr, e, length));
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if ((length < sizeof(*req)) || (length > sizeof(e->buffer))) {
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diva_os_leave_spin_lock(&adapter_lock, &old_irql, "write");
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return (-2);
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}
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if (e->status & DIVA_UM_IDI_RC_PENDING) {
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DBG_ERR(("A: A(%d) E(%08x) rc pending", a->adapter_nr, e));
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diva_os_leave_spin_lock(&adapter_lock, &old_irql, "write");
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return (-1); /* should wait for RC code first */
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}
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/*
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Copy function does access only locked verified memory,
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also it can be called with spin lock held
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*/
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if ((ret = (*cp_fn) (os_handle, e->buffer, src, length)) < 0) {
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DBG_TRC(("A: A(%d) E(%08x) write error=%d", a->adapter_nr,
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e, ret));
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diva_os_leave_spin_lock(&adapter_lock, &old_irql, "write");
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return (ret);
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}
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req = (diva_um_idi_req_hdr_t *) & e->buffer[0];
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switch (req->type) {
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case DIVA_UM_IDI_GET_FEATURES:{
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DBG_LOG(("A(%d) get_features", a->adapter_nr));
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if (!(data =
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diva_data_q_get_segment4write(&e->data))) {
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DBG_ERR(("A(%d) get_features, no free buffer",
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a->adapter_nr));
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diva_os_leave_spin_lock(&adapter_lock,
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&old_irql,
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"write");
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return (0);
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}
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diva_user_mode_idi_adapter_features(a, &(((diva_um_idi_ind_hdr_t
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*) data)->hdr.features));
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((diva_um_idi_ind_hdr_t *) data)->type =
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DIVA_UM_IDI_IND_FEATURES;
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((diva_um_idi_ind_hdr_t *) data)->data_length = 0;
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diva_data_q_ack_segment4write(&e->data,
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sizeof(diva_um_idi_ind_hdr_t));
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diva_os_leave_spin_lock(&adapter_lock, &old_irql, "write");
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diva_os_wakeup_read(e->os_context);
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}
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break;
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case DIVA_UM_IDI_REQ:
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case DIVA_UM_IDI_REQ_MAN:
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case DIVA_UM_IDI_REQ_SIG:
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case DIVA_UM_IDI_REQ_NET:
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DBG_TRC(("A(%d) REQ(%02d)-(%02d)-(%08x)", a->adapter_nr,
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req->Req, req->ReqCh,
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req->type & DIVA_UM_IDI_REQ_TYPE_MASK));
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switch (process_idi_request(e, req)) {
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case -1:
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diva_os_leave_spin_lock(&adapter_lock, &old_irql, "write");
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return (-1);
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case -2:
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diva_os_leave_spin_lock(&adapter_lock, &old_irql, "write");
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diva_os_wakeup_read(e->os_context);
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break;
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default:
|
|
diva_os_leave_spin_lock(&adapter_lock, &old_irql, "write");
|
|
break;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
diva_os_leave_spin_lock(&adapter_lock, &old_irql, "write");
|
|
return (-1);
|
|
}
|
|
|
|
DBG_TRC(("A(%d) E(%08x) write=%d", a->adapter_nr, e, ret));
|
|
|
|
return (ret);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------
|
|
CALLBACK FROM XDI
|
|
-------------------------------------------------------------------------- */
|
|
static void diva_um_idi_xdi_callback(ENTITY * entity)
|
|
{
|
|
divas_um_idi_entity_t *e = DIVAS_CONTAINING_RECORD(entity,
|
|
divas_um_idi_entity_t,
|
|
e);
|
|
diva_os_spin_lock_magic_t old_irql;
|
|
int call_wakeup = 0;
|
|
|
|
diva_os_enter_spin_lock(&adapter_lock, &old_irql, "xdi_callback");
|
|
|
|
if (e->e.complete == 255) {
|
|
if (!(e->status & DIVA_UM_IDI_REMOVE_PENDING)) {
|
|
diva_um_idi_stop_wdog(e);
|
|
}
|
|
if ((call_wakeup = process_idi_rc(e, e->e.Rc))) {
|
|
if (e->rc_count) {
|
|
e->rc_count--;
|
|
}
|
|
}
|
|
e->e.Rc = 0;
|
|
diva_os_leave_spin_lock(&adapter_lock, &old_irql, "xdi_callback");
|
|
|
|
if (call_wakeup) {
|
|
diva_os_wakeup_read(e->os_context);
|
|
diva_os_wakeup_close(e->os_context);
|
|
}
|
|
} else {
|
|
if (e->status & DIVA_UM_IDI_REMOVE_PENDING) {
|
|
e->e.RNum = 0;
|
|
e->e.RNR = 2;
|
|
} else {
|
|
call_wakeup = process_idi_ind(e, e->e.Ind);
|
|
}
|
|
e->e.Ind = 0;
|
|
diva_os_leave_spin_lock(&adapter_lock, &old_irql, "xdi_callback");
|
|
if (call_wakeup) {
|
|
diva_os_wakeup_read(e->os_context);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int process_idi_request(divas_um_idi_entity_t * e,
|
|
const diva_um_idi_req_hdr_t * req)
|
|
{
|
|
int assign = 0;
|
|
byte Req = (byte) req->Req;
|
|
dword type = req->type & DIVA_UM_IDI_REQ_TYPE_MASK;
|
|
|
|
if (!e->e.Id || !e->e.callback) { /* not assigned */
|
|
if (Req != ASSIGN) {
|
|
DBG_ERR(("A: A(%d) E(%08x) not assigned",
|
|
e->adapter->adapter_nr, e));
|
|
return (-1); /* NOT ASSIGNED */
|
|
} else {
|
|
switch (type) {
|
|
case DIVA_UM_IDI_REQ_TYPE_MAN:
|
|
e->e.Id = MAN_ID;
|
|
DBG_TRC(("A(%d) E(%08x) assign MAN",
|
|
e->adapter->adapter_nr, e));
|
|
break;
|
|
|
|
case DIVA_UM_IDI_REQ_TYPE_SIG:
|
|
e->e.Id = DSIG_ID;
|
|
DBG_TRC(("A(%d) E(%08x) assign SIG",
|
|
e->adapter->adapter_nr, e));
|
|
break;
|
|
|
|
case DIVA_UM_IDI_REQ_TYPE_NET:
|
|
e->e.Id = NL_ID;
|
|
DBG_TRC(("A(%d) E(%08x) assign NET",
|
|
e->adapter->adapter_nr, e));
|
|
break;
|
|
|
|
default:
|
|
DBG_ERR(("A: A(%d) E(%08x) unknown type=%08x",
|
|
e->adapter->adapter_nr, e,
|
|
type));
|
|
return (-1);
|
|
}
|
|
}
|
|
e->e.XNum = 1;
|
|
e->e.RNum = 1;
|
|
e->e.callback = diva_um_idi_xdi_callback;
|
|
e->e.X = &e->XData;
|
|
e->e.R = &e->RData;
|
|
assign = 1;
|
|
}
|
|
e->status |= DIVA_UM_IDI_RC_PENDING;
|
|
e->e.Req = Req;
|
|
e->e.ReqCh = (byte) req->ReqCh;
|
|
e->e.X->PLength = (word) req->data_length;
|
|
e->e.X->P = (byte *) & req[1]; /* Our buffer is safe */
|
|
|
|
DBG_TRC(("A(%d) E(%08x) request(%02x-%02x-%02x (%d))",
|
|
e->adapter->adapter_nr, e, e->e.Id, e->e.Req,
|
|
e->e.ReqCh, e->e.X->PLength));
|
|
|
|
e->rc_count++;
|
|
|
|
if (e->adapter && e->adapter->d.request) {
|
|
diva_um_idi_start_wdog(e);
|
|
(*(e->adapter->d.request)) (&e->e);
|
|
}
|
|
|
|
if (assign) {
|
|
if (e->e.Rc == OUT_OF_RESOURCES) {
|
|
/*
|
|
XDI has no entities more, call was not forwarded to the card,
|
|
no callback will be scheduled
|
|
*/
|
|
DBG_ERR(("A: A(%d) E(%08x) XDI out of entities",
|
|
e->adapter->adapter_nr, e));
|
|
|
|
e->e.Id = 0;
|
|
e->e.ReqCh = 0;
|
|
e->e.RcCh = 0;
|
|
e->e.Ind = 0;
|
|
e->e.IndCh = 0;
|
|
e->e.XNum = 0;
|
|
e->e.RNum = 0;
|
|
e->e.callback = NULL;
|
|
e->e.X = NULL;
|
|
e->e.R = NULL;
|
|
write_return_code(e, ASSIGN_RC | OUT_OF_RESOURCES);
|
|
return (-2);
|
|
} else {
|
|
e->status |= DIVA_UM_IDI_ASSIGN_PENDING;
|
|
}
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int process_idi_rc(divas_um_idi_entity_t * e, byte rc)
|
|
{
|
|
DBG_TRC(("A(%d) E(%08x) rc(%02x-%02x-%02x)",
|
|
e->adapter->adapter_nr, e, e->e.Id, rc, e->e.RcCh));
|
|
|
|
if (e->status & DIVA_UM_IDI_ASSIGN_PENDING) {
|
|
e->status &= ~DIVA_UM_IDI_ASSIGN_PENDING;
|
|
if (rc != ASSIGN_OK) {
|
|
DBG_ERR(("A: A(%d) E(%08x) ASSIGN failed",
|
|
e->adapter->adapter_nr, e));
|
|
e->e.callback = NULL;
|
|
e->e.Id = 0;
|
|
e->e.Req = 0;
|
|
e->e.ReqCh = 0;
|
|
e->e.Rc = 0;
|
|
e->e.RcCh = 0;
|
|
e->e.Ind = 0;
|
|
e->e.IndCh = 0;
|
|
e->e.X = NULL;
|
|
e->e.R = NULL;
|
|
e->e.XNum = 0;
|
|
e->e.RNum = 0;
|
|
}
|
|
}
|
|
if ((e->e.Req == REMOVE) && e->e.Id && (rc == 0xff)) {
|
|
DBG_ERR(("A: A(%d) E(%08x) discard OK in REMOVE",
|
|
e->adapter->adapter_nr, e));
|
|
return (0); /* let us do it in the driver */
|
|
}
|
|
if ((e->e.Req == REMOVE) && (!e->e.Id)) { /* REMOVE COMPLETE */
|
|
e->e.callback = NULL;
|
|
e->e.Id = 0;
|
|
e->e.Req = 0;
|
|
e->e.ReqCh = 0;
|
|
e->e.Rc = 0;
|
|
e->e.RcCh = 0;
|
|
e->e.Ind = 0;
|
|
e->e.IndCh = 0;
|
|
e->e.X = NULL;
|
|
e->e.R = NULL;
|
|
e->e.XNum = 0;
|
|
e->e.RNum = 0;
|
|
e->rc_count = 0;
|
|
}
|
|
if ((e->e.Req == REMOVE) && (rc != 0xff)) { /* REMOVE FAILED */
|
|
DBG_ERR(("A: A(%d) E(%08x) REMOVE FAILED",
|
|
e->adapter->adapter_nr, e));
|
|
}
|
|
write_return_code(e, rc);
|
|
|
|
return (1);
|
|
}
|
|
|
|
static int process_idi_ind(divas_um_idi_entity_t * e, byte ind)
|
|
{
|
|
int do_wakeup = 0;
|
|
|
|
if (e->e.complete != 0x02) {
|
|
diva_um_idi_ind_hdr_t *pind =
|
|
(diva_um_idi_ind_hdr_t *)
|
|
diva_data_q_get_segment4write(&e->data);
|
|
if (pind) {
|
|
e->e.RNum = 1;
|
|
e->e.R->P = (byte *) & pind[1];
|
|
e->e.R->PLength =
|
|
(word) (diva_data_q_get_max_length(&e->data) -
|
|
sizeof(*pind));
|
|
DBG_TRC(("A(%d) E(%08x) ind_1(%02x-%02x-%02x)-[%d-%d]",
|
|
e->adapter->adapter_nr, e, e->e.Id, ind,
|
|
e->e.IndCh, e->e.RLength,
|
|
e->e.R->PLength));
|
|
|
|
} else {
|
|
DBG_TRC(("A(%d) E(%08x) ind(%02x-%02x-%02x)-RNR",
|
|
e->adapter->adapter_nr, e, e->e.Id, ind,
|
|
e->e.IndCh));
|
|
e->e.RNum = 0;
|
|
e->e.RNR = 1;
|
|
do_wakeup = 1;
|
|
}
|
|
} else {
|
|
diva_um_idi_ind_hdr_t *pind =
|
|
(diva_um_idi_ind_hdr_t *) (e->e.R->P);
|
|
|
|
DBG_TRC(("A(%d) E(%08x) ind(%02x-%02x-%02x)-[%d]",
|
|
e->adapter->adapter_nr, e, e->e.Id, ind,
|
|
e->e.IndCh, e->e.R->PLength));
|
|
|
|
pind--;
|
|
pind->type = DIVA_UM_IDI_IND;
|
|
pind->hdr.ind.Ind = ind;
|
|
pind->hdr.ind.IndCh = e->e.IndCh;
|
|
pind->data_length = e->e.R->PLength;
|
|
diva_data_q_ack_segment4write(&e->data,
|
|
(int) (sizeof(*pind) +
|
|
e->e.R->PLength));
|
|
do_wakeup = 1;
|
|
}
|
|
|
|
if ((e->status & DIVA_UM_IDI_RC_PENDING) && !e->rc.count) {
|
|
do_wakeup = 0;
|
|
}
|
|
|
|
return (do_wakeup);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------
|
|
Write return code to the return code queue of entity
|
|
-------------------------------------------------------------------------- */
|
|
static int write_return_code(divas_um_idi_entity_t * e, byte rc)
|
|
{
|
|
diva_um_idi_ind_hdr_t *prc;
|
|
|
|
if (!(prc =
|
|
(diva_um_idi_ind_hdr_t *) diva_data_q_get_segment4write(&e->rc)))
|
|
{
|
|
DBG_ERR(("A: A(%d) E(%08x) rc(%02x) lost",
|
|
e->adapter->adapter_nr, e, rc));
|
|
e->status &= ~DIVA_UM_IDI_RC_PENDING;
|
|
return (-1);
|
|
}
|
|
|
|
prc->type = DIVA_UM_IDI_IND_RC;
|
|
prc->hdr.rc.Rc = rc;
|
|
prc->hdr.rc.RcCh = e->e.RcCh;
|
|
prc->data_length = 0;
|
|
diva_data_q_ack_segment4write(&e->rc, sizeof(*prc));
|
|
|
|
return (0);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------------
|
|
Return amount of entries that can be bead from this entity or
|
|
-1 if adapter was removed
|
|
-------------------------------------------------------------------------- */
|
|
int diva_user_mode_idi_ind_ready(void *entity, void *os_handle)
|
|
{
|
|
divas_um_idi_entity_t *e;
|
|
diva_um_idi_adapter_t *a;
|
|
diva_os_spin_lock_magic_t old_irql;
|
|
int ret;
|
|
|
|
if (!entity)
|
|
return (-1);
|
|
diva_os_enter_spin_lock(&adapter_lock, &old_irql, "ind_ready");
|
|
e = (divas_um_idi_entity_t *) entity;
|
|
a = e->adapter;
|
|
|
|
if ((!a) || (a->status & DIVA_UM_IDI_ADAPTER_REMOVED)) {
|
|
/*
|
|
Adapter was unloaded
|
|
*/
|
|
diva_os_leave_spin_lock(&adapter_lock, &old_irql, "ind_ready");
|
|
return (-1); /* adapter was removed */
|
|
}
|
|
if (e->status & DIVA_UM_IDI_REMOVED) {
|
|
/*
|
|
entity was removed as result of adapter removal
|
|
user should assign this entity again
|
|
*/
|
|
diva_os_leave_spin_lock(&adapter_lock, &old_irql, "ind_ready");
|
|
return (-1);
|
|
}
|
|
|
|
ret = e->rc.count + e->data.count;
|
|
|
|
if ((e->status & DIVA_UM_IDI_RC_PENDING) && !e->rc.count) {
|
|
ret = 0;
|
|
}
|
|
|
|
diva_os_leave_spin_lock(&adapter_lock, &old_irql, "ind_ready");
|
|
|
|
return (ret);
|
|
}
|
|
|
|
void *diva_um_id_get_os_context(void *entity)
|
|
{
|
|
return (((divas_um_idi_entity_t *) entity)->os_context);
|
|
}
|
|
|
|
int divas_um_idi_entity_assigned(void *entity)
|
|
{
|
|
divas_um_idi_entity_t *e;
|
|
diva_um_idi_adapter_t *a;
|
|
int ret;
|
|
diva_os_spin_lock_magic_t old_irql;
|
|
|
|
diva_os_enter_spin_lock(&adapter_lock, &old_irql, "assigned?");
|
|
|
|
|
|
e = (divas_um_idi_entity_t *) entity;
|
|
if (!e || (!(a = e->adapter)) ||
|
|
(e->status & DIVA_UM_IDI_REMOVED) ||
|
|
(a->status & DIVA_UM_IDI_ADAPTER_REMOVED)) {
|
|
diva_os_leave_spin_lock(&adapter_lock, &old_irql, "assigned?");
|
|
return (0);
|
|
}
|
|
|
|
e->status |= DIVA_UM_IDI_REMOVE_PENDING;
|
|
|
|
ret = (e->e.Id || e->rc_count
|
|
|| (e->status & DIVA_UM_IDI_ASSIGN_PENDING));
|
|
|
|
DBG_TRC(("Id:%02x, rc_count:%d, status:%08x", e->e.Id, e->rc_count,
|
|
e->status))
|
|
|
|
diva_os_leave_spin_lock(&adapter_lock, &old_irql, "assigned?");
|
|
|
|
return (ret);
|
|
}
|
|
|
|
int divas_um_idi_entity_start_remove(void *entity)
|
|
{
|
|
divas_um_idi_entity_t *e;
|
|
diva_um_idi_adapter_t *a;
|
|
diva_os_spin_lock_magic_t old_irql;
|
|
|
|
diva_os_enter_spin_lock(&adapter_lock, &old_irql, "start_remove");
|
|
|
|
e = (divas_um_idi_entity_t *) entity;
|
|
if (!e || (!(a = e->adapter)) ||
|
|
(e->status & DIVA_UM_IDI_REMOVED) ||
|
|
(a->status & DIVA_UM_IDI_ADAPTER_REMOVED)) {
|
|
diva_os_leave_spin_lock(&adapter_lock, &old_irql, "start_remove");
|
|
return (0);
|
|
}
|
|
|
|
if (e->rc_count) {
|
|
/*
|
|
Entity BUSY
|
|
*/
|
|
diva_os_leave_spin_lock(&adapter_lock, &old_irql, "start_remove");
|
|
return (1);
|
|
}
|
|
|
|
if (!e->e.Id) {
|
|
/*
|
|
Remove request was already pending, and arrived now
|
|
*/
|
|
diva_os_leave_spin_lock(&adapter_lock, &old_irql, "start_remove");
|
|
return (0); /* REMOVE was pending */
|
|
}
|
|
|
|
/*
|
|
Now send remove request
|
|
*/
|
|
e->e.Req = REMOVE;
|
|
e->e.ReqCh = 0;
|
|
|
|
e->rc_count++;
|
|
|
|
DBG_TRC(("A(%d) E(%08x) request(%02x-%02x-%02x (%d))",
|
|
e->adapter->adapter_nr, e, e->e.Id, e->e.Req,
|
|
e->e.ReqCh, e->e.X->PLength));
|
|
|
|
if (a->d.request)
|
|
(*(a->d.request)) (&e->e);
|
|
|
|
diva_os_leave_spin_lock(&adapter_lock, &old_irql, "start_remove");
|
|
|
|
return (0);
|
|
}
|