/**
* zfcp_qdio_reqid_check - checks for valid reqids.
*/
static void zfcp_qdio_reqid_check(struct zfcp_adapter *adapter,
unsigned long req_id)
{
struct zfcp_fsf_req *fsf_req;
unsigned long flags;
debug_long_event(adapter->erp_dbf, 4, req_id);
spin_lock_irqsave(&adapter->req_list_lock, flags);
fsf_req = zfcp_reqlist_find(adapter, req_id);
if (!fsf_req)
/*
* Unknown request means that we have potentially memory
* corruption and must stop the machine immediatly.
*/
panic("error: unknown request id (%ld) on adapter %s.\n",
req_id, zfcp_get_busid_by_adapter(adapter));
zfcp_reqlist_remove(adapter, fsf_req);
atomic_dec(&adapter->reqs_active);
spin_unlock_irqrestore(&adapter->req_list_lock, flags);
/* finish the FSF request */
zfcp_fsf_req_complete(fsf_req);
}
/**
* zfcp_qdio_reqid_check - checks for valid reqids or unsolicited status
*/
static int zfcp_qdio_reqid_check(struct zfcp_adapter *adapter,
unsigned long req_id)
{
struct zfcp_fsf_req *fsf_req;
unsigned long flags;
debug_long_event(adapter->erp_dbf, 4, req_id);
spin_lock_irqsave(&adapter->req_list_lock, flags);
fsf_req = zfcp_reqlist_ismember(adapter, req_id);
if (!fsf_req) {
spin_unlock_irqrestore(&adapter->req_list_lock, flags);
ZFCP_LOG_NORMAL("error: unknown request id (%ld).\n", req_id);
zfcp_erp_adapter_reopen(adapter, 0);
return -EINVAL;
}
zfcp_reqlist_remove(adapter, req_id);
atomic_dec(&adapter->reqs_active);
spin_unlock_irqrestore(&adapter->req_list_lock, flags);
/* finish the FSF request */
zfcp_fsf_req_complete(fsf_req);
return 0;
}
/*
* function: zfcp_qdio_reqid_check
*
* purpose: checks for valid reqids or unsolicited status
*
* returns: 0 - valid request id or unsolicited status
* !0 - otherwise
*/
int
zfcp_qdio_reqid_check(struct zfcp_adapter *adapter, void *sbale_addr)
{
struct zfcp_fsf_req *fsf_req;
int retval = 0;
/* invalid (per convention used in this driver) */
if (unlikely(!sbale_addr)) {
ZFCP_LOG_NORMAL("bug: invalid reqid\n");
retval = -EINVAL;
goto out;
}
/* valid request id and thus (hopefully :) valid fsf_req address */
fsf_req = (struct zfcp_fsf_req *) sbale_addr;
if (unlikely(adapter != fsf_req->adapter)) {
ZFCP_LOG_NORMAL("bug: invalid reqid (fsf_req=%p, "
"fsf_req->adapter=%p, adapter=%p)\n",
fsf_req, fsf_req->adapter, adapter);
retval = -EINVAL;
goto out;
}
ZFCP_LOG_TRACE("fsf_req at %p, QTCB at %p\n", fsf_req, fsf_req->qtcb);
if (likely(fsf_req->qtcb)) {
ZFCP_LOG_TRACE("hex dump of QTCB:\n");
ZFCP_HEX_DUMP(ZFCP_LOG_LEVEL_TRACE, (char *) fsf_req->qtcb,
sizeof(struct fsf_qtcb));
}
/* finish the FSF request */
zfcp_fsf_req_complete(fsf_req);
out:
return retval;
}
static void zfcp_qdio_reqid_check(struct zfcp_adapter *adapter,
unsigned long req_id, int sbal_idx)
{
struct zfcp_fsf_req *fsf_req;
unsigned long flags;
spin_lock_irqsave(&adapter->req_list_lock, flags);
fsf_req = zfcp_reqlist_find(adapter, req_id);
if (!fsf_req)
/*
* Unknown request means that we have potentially memory
* corruption and must stop the machine immediatly.
*/
panic("error: unknown request id (%lx) on adapter %s.\n",
req_id, zfcp_get_busid_by_adapter(adapter));
zfcp_reqlist_remove(adapter, fsf_req);
spin_unlock_irqrestore(&adapter->req_list_lock, flags);
fsf_req->sbal_response = sbal_idx;
fsf_req->qdio_inb_usage = atomic_read(&adapter->resp_q.count);
zfcp_fsf_req_complete(fsf_req);
}
