commit d842e43e1d538d535c08b27a71e4912641121924
author Christopher Ferris <cferris@google.com> Thu Mar 07 10:21:59 2019 -0800
committer Christopher Ferris <cferris@google.com> Thu Mar 07 11:19:22 2019 -0800
tree baf4623c943ffdef001d732788c1d3d753716a2a
parent ff16c0b89b7297bc70353f60afac9bb93d6b0087

Update to v5.0 kernel headers.

Test: Builds and boots on taimen.
Change-Id: I13843bf1ab30ea89a50852adc88f2cba8401bded

libc/kernel/uapi/linux/virtio_blk.h

diff --git a/libc/kernel/uapi/linux/virtio_blk.h b/libc/kernel/uapi/linux/virtio_blk.h
index 2d53704..5197434 100644
--- a/libc/kernel/uapi/linux/virtio_blk.h
+++ b/libc/kernel/uapi/linux/virtio_blk.h
@@ -29,6 +29,8 @@
 #define VIRTIO_BLK_F_BLK_SIZE 6
 #define VIRTIO_BLK_F_TOPOLOGY 10
 #define VIRTIO_BLK_F_MQ 12
+#define VIRTIO_BLK_F_DISCARD 13
+#define VIRTIO_BLK_F_WRITE_ZEROES 14
 #ifndef VIRTIO_BLK_NO_LEGACY
 #define VIRTIO_BLK_F_BARRIER 0
 #define VIRTIO_BLK_F_SCSI 7
@@ -54,6 +56,13 @@
   __u8 wce;
   __u8 unused;
   __u16 num_queues;
+  __u32 max_discard_sectors;
+  __u32 max_discard_seg;
+  __u32 discard_sector_alignment;
+  __u32 max_write_zeroes_sectors;
+  __u32 max_write_zeroes_seg;
+  __u8 write_zeroes_may_unmap;
+  __u8 unused1[3];
 } __attribute__((packed));
 #define VIRTIO_BLK_T_IN 0
 #define VIRTIO_BLK_T_OUT 1
@@ -62,6 +71,8 @@
 #endif
 #define VIRTIO_BLK_T_FLUSH 4
 #define VIRTIO_BLK_T_GET_ID 8
+#define VIRTIO_BLK_T_DISCARD 11
+#define VIRTIO_BLK_T_WRITE_ZEROES 13
 #ifndef VIRTIO_BLK_NO_LEGACY
 #define VIRTIO_BLK_T_BARRIER 0x80000000
 #endif
@@ -70,6 +81,12 @@
   __virtio32 ioprio;
   __virtio64 sector;
 };
+#define VIRTIO_BLK_WRITE_ZEROES_FLAG_UNMAP 0x00000001
+struct virtio_blk_discard_write_zeroes {
+  __le64 sector;
+  __le32 num_sectors;
+  __le32 flags;
+};
 #ifndef VIRTIO_BLK_NO_LEGACY
 struct virtio_scsi_inhdr {
   __virtio32 errors;