Merge branch 'for-3.19/drivers' of git://git.kernel.dk/linux-block

Pull block layer driver updates from Jens Axboe:

 - NVMe updates:
        - The blk-mq conversion from Matias (and others)

        - A stack of NVMe bug fixes from the nvme tree, mostly from Keith.

        - Various bug fixes from me, fixing issues in both the blk-mq
          conversion and generic bugs.

        - Abort and CPU online fix from Sam.

        - Hot add/remove fix from Indraneel.

 - A couple of drbd fixes from the drbd team (Andreas, Lars, Philipp)

 - With the generic IO stat accounting from 3.19/core, converting md,
   bcache, and rsxx to use those.  From Gu Zheng.

 - Boundary check for queue/irq mode for null_blk from Matias.  Fixes
   cases where invalid values could be given, causing the device to hang.

 - The xen blkfront pull request, with two bug fixes from Vitaly.

* 'for-3.19/drivers' of git://git.kernel.dk/linux-block: (56 commits)
  NVMe: fix race condition in nvme_submit_sync_cmd()
  NVMe: fix retry/error logic in nvme_queue_rq()
  NVMe: Fix FS mount issue (hot-remove followed by hot-add)
  NVMe: fix error return checking from blk_mq_alloc_request()
  NVMe: fix freeing of wrong request in abort path
  xen/blkfront: remove redundant flush_op
  xen/blkfront: improve protection against issuing unsupported REQ_FUA
  NVMe: Fix command setup on IO retry
  null_blk: boundary check queue_mode and irqmode
  block/rsxx: use generic io stats accounting functions to simplify io stat accounting
  md: use generic io stats accounting functions to simplify io stat accounting
  drbd: use generic io stats accounting functions to simplify io stat accounting
  md/bcache: use generic io stats accounting functions to simplify io stat accounting
  NVMe: Update module version major number
  NVMe: fail pci initialization if the device doesn't have any BARs
  NVMe: add ->exit_hctx() hook
  NVMe: make setup work for devices that don't do INTx
  NVMe: enable IO stats by default
  NVMe: nvme_submit_async_admin_req() must use atomic rq allocation
  NVMe: replace blk_put_request() with blk_mq_free_request()
  ...

1 files changed, 44 insertions, 2 deletions

diff --git a/include/uapi/linux/nvme.h b/include/uapi/linux/nvme.h
index 29a7d8619d8d..26386cf3db44 100644
--- a/include/uapi/linux/nvme.h
+++ b/include/uapi/linux/nvme.h
@@ -181,6 +181,22 @@ enum {
         NVME_LBART_ATTRIB_HIDE  = 1 << 1,
 };
 
+struct nvme_reservation_status {
+        __le32  gen;
+        __u8    rtype;
+        __u8    regctl[2];
+        __u8    resv5[2];
+        __u8    ptpls;
+        __u8    resv10[13];
+        struct {
+                __le16  cntlid;
+                __u8    rcsts;
+                __u8    resv3[5];
+                __le64  hostid;
+                __le64  rkey;
+        } regctl_ds[];
+};
+
 /* I/O commands */
 
 enum nvme_opcode {
@@ -189,7 +205,12 @@ enum nvme_opcode {
         nvme_cmd_read           = 0x02,
         nvme_cmd_write_uncor    = 0x04,
         nvme_cmd_compare        = 0x05,
+        nvme_cmd_write_zeroes   = 0x08,
         nvme_cmd_dsm            = 0x09,
+        nvme_cmd_resv_register  = 0x0d,
+        nvme_cmd_resv_report    = 0x0e,
+        nvme_cmd_resv_acquire   = 0x11,
+        nvme_cmd_resv_release   = 0x15,
 };
 
 struct nvme_common_command {
@@ -305,7 +326,11 @@ enum {
         NVME_FEAT_IRQ_CONFIG    = 0x09,
         NVME_FEAT_WRITE_ATOMIC  = 0x0a,
         NVME_FEAT_ASYNC_EVENT   = 0x0b,
-        NVME_FEAT_SW_PROGRESS   = 0x0c,
+        NVME_FEAT_AUTO_PST      = 0x0c,
+        NVME_FEAT_SW_PROGRESS   = 0x80,
+        NVME_FEAT_HOST_ID       = 0x81,
+        NVME_FEAT_RESV_MASK     = 0x82,
+        NVME_FEAT_RESV_PERSIST  = 0x83,
         NVME_LOG_ERROR          = 0x01,
         NVME_LOG_SMART          = 0x02,
         NVME_LOG_FW_SLOT        = 0x03,
@@ -440,9 +465,15 @@ enum {
         NVME_SC_FUSED_MISSING           = 0xa,
         NVME_SC_INVALID_NS              = 0xb,
         NVME_SC_CMD_SEQ_ERROR           = 0xc,
+        NVME_SC_SGL_INVALID_LAST        = 0xd,
+        NVME_SC_SGL_INVALID_COUNT       = 0xe,
+        NVME_SC_SGL_INVALID_DATA        = 0xf,
+        NVME_SC_SGL_INVALID_METADATA    = 0x10,
+        NVME_SC_SGL_INVALID_TYPE        = 0x11,
         NVME_SC_LBA_RANGE               = 0x80,
         NVME_SC_CAP_EXCEEDED            = 0x81,
         NVME_SC_NS_NOT_READY            = 0x82,
+        NVME_SC_RESERVATION_CONFLICT    = 0x83,
         NVME_SC_CQ_INVALID              = 0x100,
         NVME_SC_QID_INVALID             = 0x101,
         NVME_SC_QUEUE_SIZE              = 0x102,
@@ -454,7 +485,15 @@ enum {
         NVME_SC_INVALID_VECTOR          = 0x108,
         NVME_SC_INVALID_LOG_PAGE        = 0x109,
         NVME_SC_INVALID_FORMAT          = 0x10a,
+        NVME_SC_FIRMWARE_NEEDS_RESET    = 0x10b,
+        NVME_SC_INVALID_QUEUE           = 0x10c,
+        NVME_SC_FEATURE_NOT_SAVEABLE    = 0x10d,
+        NVME_SC_FEATURE_NOT_CHANGEABLE  = 0x10e,
+        NVME_SC_FEATURE_NOT_PER_NS      = 0x10f,
+        NVME_SC_FW_NEEDS_RESET_SUBSYS   = 0x110,
         NVME_SC_BAD_ATTRIBUTES          = 0x180,
+        NVME_SC_INVALID_PI              = 0x181,
+        NVME_SC_READ_ONLY               = 0x182,
         NVME_SC_WRITE_FAULT             = 0x280,
         NVME_SC_READ_ERROR              = 0x281,
         NVME_SC_GUARD_CHECK             = 0x282,
@@ -489,7 +528,7 @@ struct nvme_user_io {
         __u16   appmask;
 };
 
-struct nvme_admin_cmd {
+struct nvme_passthru_cmd {
         __u8    opcode;
         __u8    flags;
         __u16   rsvd1;
@@ -510,8 +549,11 @@ struct nvme_admin_cmd {
         __u32   result;
 };
 
+#define nvme_admin_cmd nvme_passthru_cmd
+
 #define NVME_IOCTL_ID           _IO('N', 0x40)
 #define NVME_IOCTL_ADMIN_CMD    _IOWR('N', 0x41, struct nvme_admin_cmd)
 #define NVME_IOCTL_SUBMIT_IO    _IOW('N', 0x42, struct nvme_user_io)
+#define NVME_IOCTL_IO_CMD       _IOWR('N', 0x43, struct nvme_passthru_cmd)
 
 #endif /* _UAPI_LINUX_NVME_H */