megasas: Clear unit attention on initial reset

[qemu.git] / include / hw / scsi / scsi.h

diff --git a/include/hw/scsi/scsi.h b/include/hw/scsi/scsi.h
index e5fc39d504fa50e830656819e1c412b5a40a4598..f4aabfd0e790842335f10189a9b0f71f764d8038 100644 (file)
--- a/include/hw/scsi/scsi.h
+++ b/include/hw/scsi/scsi.h
@@ -2,9 +2,10 @@
 #define QEMU_HW_SCSI_H
 
 #include "hw/qdev.h"
-#include "block/block.h"
+#include "qemu/typedefs.h"
 #include "hw/block/block.h"
 #include "sysemu/sysemu.h"
+#include "qemu/notify.h"
 
 #define MAX_SCSI_DEVS  255
 
@@ -31,6 +32,7 @@ typedef struct SCSISense {
     uint8_t ascq;
 } SCSISense;
 
+#define SCSI_SENSE_BUF_SIZE_OLD 96
 #define SCSI_SENSE_BUF_SIZE 252
 
 struct SCSICommand {
@@ -49,17 +51,25 @@ struct SCSIRequest {
     uint32_t          tag;
     uint32_t          lun;
     uint32_t          status;
+    void              *hba_private;
     size_t            resid;
     SCSICommand       cmd;
-    BlockDriverAIOCB  *aiocb;
-    QEMUSGList        *sg;
+    NotifierList      cancel_notifiers;
+
+    /* Note:
+     * - fields before sense are initialized by scsi_req_alloc;
+     * - sense[] is uninitialized;
+     * - fields after sense are memset to 0 by scsi_req_alloc.
+     * */
+
+    uint8_t           sense[SCSI_SENSE_BUF_SIZE];
+    uint32_t          sense_len;
+    bool              enqueued;
+    bool              io_canceled;
+    bool              retry;
     bool              dma_started;
-    uint8_t sense[SCSI_SENSE_BUF_SIZE];
-    uint32_t sense_len;
-    bool enqueued;
-    bool io_canceled;
-    bool retry;
-    void *hba_private;
+    BlockAIOCB        *aiocb;
+    QEMUSGList        *sg;
     QTAILQ_ENTRY(SCSIRequest) next;
 };
 
@@ -73,8 +83,10 @@ struct SCSIRequest {
 
 typedef struct SCSIDeviceClass {
     DeviceClass parent_class;
-    int (*init)(SCSIDevice *dev);
-    void (*destroy)(SCSIDevice *s);
+    void (*realize)(SCSIDevice *dev, Error **errp);
+    void (*unrealize)(SCSIDevice *dev, Error **errp);
+    int (*parse_cdb)(SCSIDevice *dev, SCSICommand *cmd, uint8_t *buf,
+                     void *hba_private);
     SCSIRequest *(*alloc_req)(SCSIDevice *s, uint32_t tag, uint32_t lun,
                               uint8_t *buf, void *hba_private);
     void (*unit_attention_reported)(SCSIDevice *s);
@@ -120,7 +132,6 @@ struct SCSIReqOps {
     int32_t (*send_command)(SCSIRequest *req, uint8_t *buf);
     void (*read_data)(SCSIRequest *req);
     void (*write_data)(SCSIRequest *req);
-    void (*cancel_io)(SCSIRequest *req);
     uint8_t *(*get_buf)(SCSIRequest *req);
 
     void (*save_request)(QEMUFile *f, SCSIRequest *req);
@@ -130,11 +141,11 @@ struct SCSIReqOps {
 struct SCSIBusInfo {
     int tcq;
     int max_channel, max_target, max_lun;
+    int (*parse_cdb)(SCSIDevice *dev, SCSICommand *cmd, uint8_t *buf,
+                     void *hba_private);
     void (*transfer_data)(SCSIRequest *req, uint32_t arg);
     void (*complete)(SCSIRequest *req, uint32_t arg, size_t resid);
     void (*cancel)(SCSIRequest *req);
-    void (*hotplug)(SCSIBus *bus, SCSIDevice *dev);
-    void (*hot_unplug)(SCSIBus *bus, SCSIDevice *dev);
     void (*change)(SCSIBus *bus, SCSIDevice *dev, SCSISense sense);
     QEMUSGList *(*get_sg_list)(SCSIRequest *req);
 
@@ -162,7 +173,7 @@ static inline SCSIBus *scsi_bus_from_device(SCSIDevice *d)
     return DO_UPCAST(SCSIBus, qbus, d->qdev.parent_bus);
 }
 
-SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockDriverState *bdrv,
+SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockBackend *blk,
                                       int unit, bool removable, int bootindex,
                                       const char *serial, Error **errp);
 void scsi_bus_legacy_handle_cmdline(SCSIBus *bus, Error **errp);
@@ -228,8 +239,9 @@ extern const struct SCSISense sense_code_SPACE_ALLOC_FAILED;
 
 #define SENSE_CODE(x) sense_code_ ## x
 
-uint32_t scsi_data_cdb_length(uint8_t *buf);
-uint32_t scsi_cdb_length(uint8_t *buf);
+uint32_t scsi_data_cdb_xfer(uint8_t *buf);
+uint32_t scsi_cdb_xfer(uint8_t *buf);
+int scsi_cdb_length(uint8_t *buf);
 int scsi_sense_valid(SCSISense sense);
 int scsi_build_sense(uint8_t *in_buf, int in_len,
                      uint8_t *buf, int len, bool fixed);
@@ -243,6 +255,9 @@ void scsi_req_free(SCSIRequest *req);
 SCSIRequest *scsi_req_ref(SCSIRequest *req);
 void scsi_req_unref(SCSIRequest *req);
 
+int scsi_bus_parse_cdb(SCSIDevice *dev, SCSICommand *cmd, uint8_t *buf,
+                       void *hba_private);
+int scsi_req_parse_cdb(SCSIDevice *dev, SCSICommand *cmd, uint8_t *buf);
 void scsi_req_build_sense(SCSIRequest *req, SCSISense sense);
 void scsi_req_print(SCSIRequest *req);
 void scsi_req_continue(SCSIRequest *req);
@@ -250,12 +265,14 @@ void scsi_req_data(SCSIRequest *req, int len);
 void scsi_req_complete(SCSIRequest *req, int status);
 uint8_t *scsi_req_get_buf(SCSIRequest *req);
 int scsi_req_get_sense(SCSIRequest *req, uint8_t *buf, int len);
-void scsi_req_abort(SCSIRequest *req, int status);
+void scsi_req_cancel_complete(SCSIRequest *req);
 void scsi_req_cancel(SCSIRequest *req);
+void scsi_req_cancel_async(SCSIRequest *req, Notifier *notifier);
 void scsi_req_retry(SCSIRequest *req);
 void scsi_device_purge_requests(SCSIDevice *sdev, SCSISense sense);
 void scsi_device_set_ua(SCSIDevice *sdev, SCSISense sense);
 void scsi_device_report_change(SCSIDevice *dev, SCSISense sense);
+void scsi_device_unit_attention_reported(SCSIDevice *dev);
 int scsi_device_get_sense(SCSIDevice *dev, uint8_t *buf, int len, bool fixed);
 SCSIDevice *scsi_device_find(SCSIBus *bus, int channel, int target, int lun);