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!
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.h b/drivers/scsi/ibmvscsi/ibmvscsi.h
new file mode 100644
index 0000000..1030b70
--- /dev/null
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.h
@@ -0,0 +1,109 @@
+/* ------------------------------------------------------------
+ * ibmvscsi.h
+ * (C) Copyright IBM Corporation 1994, 2003
+ * Authors: Colin DeVilbiss (devilbis@us.ibm.com)
+ * Santiago Leon (santil@us.ibm.com)
+ * Dave Boutcher (sleddog@us.ibm.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ *
+ * ------------------------------------------------------------
+ * Emulation of a SCSI host adapter for Virtual I/O devices
+ *
+ * This driver allows the Linux SCSI peripheral drivers to directly
+ * access devices in the hosting partition, either on an iSeries
+ * hypervisor system or a converged hypervisor system.
+ */
+#ifndef IBMVSCSI_H
+#define IBMVSCSI_H
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/completion.h>
+#include <linux/interrupt.h>
+#include "viosrp.h"
+
+struct scsi_cmnd;
+struct Scsi_Host;
+
+/* Number of indirect bufs...the list of these has to fit in the
+ * additional data of the srp_cmd struct along with the indirect
+ * descriptor
+ */
+#define MAX_INDIRECT_BUFS 10
+
+/* ------------------------------------------------------------
+ * Data Structures
+ */
+/* an RPA command/response transport queue */
+struct crq_queue {
+ struct viosrp_crq *msgs;
+ int size, cur;
+ dma_addr_t msg_token;
+ spinlock_t lock;
+};
+
+/* a unit of work for the hosting partition */
+struct srp_event_struct {
+ union viosrp_iu *xfer_iu;
+ struct scsi_cmnd *cmnd;
+ struct list_head list;
+ void (*done) (struct srp_event_struct *);
+ struct viosrp_crq crq;
+ struct ibmvscsi_host_data *hostdata;
+ atomic_t free;
+ union viosrp_iu iu;
+ void (*cmnd_done) (struct scsi_cmnd *);
+ struct completion comp;
+ union viosrp_iu *sync_srp;
+};
+
+/* a pool of event structs for use */
+struct event_pool {
+ struct srp_event_struct *events;
+ u32 size;
+ int next;
+ union viosrp_iu *iu_storage;
+ dma_addr_t iu_token;
+};
+
+/* all driver data associated with a host adapter */
+struct ibmvscsi_host_data {
+ atomic_t request_limit;
+ struct device *dev;
+ struct event_pool pool;
+ struct crq_queue queue;
+ struct tasklet_struct srp_task;
+ struct list_head sent;
+ struct Scsi_Host *host;
+ struct mad_adapter_info_data madapter_info;
+};
+
+/* routines for managing a command/response queue */
+int ibmvscsi_init_crq_queue(struct crq_queue *queue,
+ struct ibmvscsi_host_data *hostdata,
+ int max_requests);
+void ibmvscsi_release_crq_queue(struct crq_queue *queue,
+ struct ibmvscsi_host_data *hostdata,
+ int max_requests);
+void ibmvscsi_reset_crq_queue(struct crq_queue *queue,
+ struct ibmvscsi_host_data *hostdata);
+
+void ibmvscsi_handle_crq(struct viosrp_crq *crq,
+ struct ibmvscsi_host_data *hostdata);
+int ibmvscsi_send_crq(struct ibmvscsi_host_data *hostdata,
+ u64 word1, u64 word2);
+
+#endif /* IBMVSCSI_H */