xnu-1504.9.17.tar.gz

[apple/xnu.git] / bsd / sys / disk.h

diff --git a/bsd/sys/disk.h b/bsd/sys/disk.h
index b36277729cac25e1453db1e0cb6b1396b231466b..6013db9dfb3579c461b270e8423dbe40c110866f 100644 (file)
--- a/bsd/sys/disk.h
+++ b/bsd/sys/disk.h
@@ -50,6 +50,9 @@
  * DKIOCISFORMATTED                      is media formatted?
  * DKIOCISWRITABLE                       is media writable?
  *
  * DKIOCISFORMATTED                      is media formatted?
  * DKIOCISWRITABLE                       is media writable?
  *

+ * DKIOCREQUESTIDLE                      idle media
+ * DKIOCDISCARD                          delete unused data
+ *

  * DKIOCGETMAXBLOCKCOUNTREAD             get maximum block count for reads
  * DKIOCGETMAXBLOCKCOUNTWRITE            get maximum block count for writes
  * DKIOCGETMAXBYTECOUNTREAD              get maximum byte count for reads
  * DKIOCGETMAXBLOCKCOUNTREAD             get maximum block count for reads
  * DKIOCGETMAXBLOCKCOUNTWRITE            get maximum block count for writes
  * DKIOCGETMAXBYTECOUNTREAD              get maximum byte count for reads


@@ -62,11 +65,22 @@
  *
  * DKIOCGETMINSEGMENTALIGNMENTBYTECOUNT  get minimum segment alignment in bytes
  * DKIOCGETMAXSEGMENTADDRESSABLEBITCOUNT get maximum segment width in bits
  *
  * DKIOCGETMINSEGMENTALIGNMENTBYTECOUNT  get minimum segment alignment in bytes
  * DKIOCGETMAXSEGMENTADDRESSABLEBITCOUNT get maximum segment width in bits

+ *
+ * DKIOCGETPHYSICALBLOCKSIZE             get device's block size
+ * DKIOCGETCOMMANDPOOLSIZE               get device's queue depth

  */
 
 typedef struct
 {
  */
 
 typedef struct
 {

-    char path[128];
+    uint64_t               offset;
+    uint64_t               length;
+
+    uint8_t                reserved0128[16];       /* reserved, clear to zero */
+} dk_discard_t;
+
+typedef struct
+{
+    char                   path[128];

 } dk_firmware_path_t;
 
 typedef struct
 } dk_firmware_path_t;
 
 typedef struct


@@ -102,6 +116,9 @@ typedef struct
 #define DKIOCISFORMATTED                      _IOR('d', 23, uint32_t)
 #define DKIOCISWRITABLE                       _IOR('d', 29, uint32_t)
 
 #define DKIOCISFORMATTED                      _IOR('d', 23, uint32_t)
 #define DKIOCISWRITABLE                       _IOR('d', 29, uint32_t)
 

+#define DKIOCREQUESTIDLE                      _IO('d', 30)
+#define DKIOCDISCARD                          _IOW('d', 31, dk_discard_t)
+

 #define DKIOCGETMAXBLOCKCOUNTREAD             _IOR('d', 64, uint64_t)
 #define DKIOCGETMAXBLOCKCOUNTWRITE            _IOR('d', 65, uint64_t)
 #define DKIOCGETMAXBYTECOUNTREAD              _IOR('d', 70, uint64_t)
 #define DKIOCGETMAXBLOCKCOUNTREAD             _IOR('d', 64, uint64_t)
 #define DKIOCGETMAXBLOCKCOUNTWRITE            _IOR('d', 65, uint64_t)
 #define DKIOCGETMAXBYTECOUNTREAD              _IOR('d', 70, uint64_t)


@@ -115,11 +132,16 @@ typedef struct
 #define DKIOCGETMINSEGMENTALIGNMENTBYTECOUNT  _IOR('d', 74, uint64_t)
 #define DKIOCGETMAXSEGMENTADDRESSABLEBITCOUNT _IOR('d', 75, uint64_t)
 
 #define DKIOCGETMINSEGMENTALIGNMENTBYTECOUNT  _IOR('d', 74, uint64_t)
 #define DKIOCGETMAXSEGMENTADDRESSABLEBITCOUNT _IOR('d', 75, uint64_t)
 

+#define DKIOCGETPHYSICALBLOCKSIZE             _IOR('d', 77, uint32_t)
+#define DKIOCGETCOMMANDPOOLSIZE               _IOR('d', 78, uint32_t)
+

 #ifdef KERNEL
 #ifdef KERNEL

+#define DK_FEATURE_DISCARD                    0x00000010

 #define DK_FEATURE_FORCE_UNIT_ACCESS          0x00000001
 #define DKIOCGETBLOCKCOUNT32                  _IOR('d', 25, uint32_t)
 #define DKIOCSETBLOCKSIZE                     _IOW('d', 24, uint32_t)
 #define DKIOCGETBSDUNIT                       _IOR('d', 27, uint32_t)
 #define DK_FEATURE_FORCE_UNIT_ACCESS          0x00000001
 #define DKIOCGETBLOCKCOUNT32                  _IOR('d', 25, uint32_t)
 #define DKIOCSETBLOCKSIZE                     _IOW('d', 24, uint32_t)
 #define DKIOCGETBSDUNIT                       _IOR('d', 27, uint32_t)

+#define DKIOCISSOLIDSTATE                    _IOR('d', 79, uint32_t)

 #define DKIOCISVIRTUAL                        _IOR('d', 72, uint32_t)
 #define DKIOCGETBASE                          _IOR('d', 73, uint64_t)
 #define DKIOCGETFEATURES                      _IOR('d', 76, uint32_t)
 #define DKIOCISVIRTUAL                        _IOR('d', 72, uint32_t)
 #define DKIOCGETBASE                          _IOR('d', 73, uint64_t)
 #define DKIOCGETFEATURES                      _IOR('d', 76, uint32_t)