Add slow disk diagnosis to ZED

[mirror_zfs.git] / include / sys / vdev_impl.h

diff --git a/include/sys/vdev_impl.h b/include/sys/vdev_impl.h
index ad9dc3aefd8eaf9719a9ea69377a80d0d1a83261..f39ebf031ceab7a41118c01ef738ce872384fc92 100644 (file)
--- a/include/sys/vdev_impl.h
+++ b/include/sys/vdev_impl.h
@@ -22,6 +22,7 @@
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2011, 2020 by Delphix. All rights reserved.
  * Copyright (c) 2017, Intel Corporation.
+ * Copyright (c) 2023, Klara Inc.
  */
 
 #ifndef _SYS_VDEV_IMPL_H
@@ -72,7 +73,7 @@ typedef void  vdev_fini_func_t(vdev_t *vd);
 typedef int    vdev_open_func_t(vdev_t *vd, uint64_t *size, uint64_t *max_size,
     uint64_t *ashift, uint64_t *pshift);
 typedef void   vdev_close_func_t(vdev_t *vd);
-typedef uint64_t vdev_asize_func_t(vdev_t *vd, uint64_t psize);
+typedef uint64_t vdev_asize_func_t(vdev_t *vd, uint64_t psize, uint64_t txg);
 typedef uint64_t vdev_min_asize_func_t(vdev_t *vd);
 typedef uint64_t vdev_min_alloc_func_t(vdev_t *vd);
 typedef void   vdev_io_start_func_t(zio_t *zio);
@@ -131,7 +132,10 @@ typedef const struct vdev_ops {
  * Virtual device properties
  */
 typedef union vdev_queue_class {
-       list_t          vqc_list;
+       struct {
+               ulong_t         vqc_list_numnodes;
+               list_t          vqc_list;
+       };
        avl_tree_t      vqc_tree;
 } vdev_queue_class_t;
 
@@ -278,6 +282,7 @@ struct vdev {
        uint64_t        vdev_noalloc;   /* device is passivated?        */
        uint64_t        vdev_removing;  /* device is being removed?     */
        uint64_t        vdev_failfast;  /* device failfast setting      */
+       boolean_t       vdev_rz_expanding; /* raidz is being expanded?  */
        boolean_t       vdev_ishole;    /* is a hole in the namespace   */
        uint64_t        vdev_top_zap;
        vdev_alloc_bias_t vdev_alloc_bias; /* metaslab allocation bias  */
@@ -450,12 +455,14 @@ struct vdev {
        zfs_ratelimit_t vdev_checksum_rl;
 
        /*
-        * Checksum and IO thresholds for tuning ZED
+        * Vdev properties for tuning ZED
         */
        uint64_t        vdev_checksum_n;
        uint64_t        vdev_checksum_t;
        uint64_t        vdev_io_n;
        uint64_t        vdev_io_t;
+       uint64_t        vdev_slow_io_n;
+       uint64_t        vdev_slow_io_t;
 };
 
 #define        VDEV_PAD_SIZE           (8 << 10)
@@ -533,6 +540,7 @@ typedef struct vdev_label {
 /*
  * Size of embedded boot loader region on each label.
  * The total size of the first two labels plus the boot area is 4MB.
+ * On RAIDZ, this space is overwritten during RAIDZ expansion.
  */
 #define        VDEV_BOOT_SIZE          (7ULL << 19)                    /* 3.5M */
 
@@ -605,7 +613,7 @@ extern vdev_ops_t vdev_indirect_ops;
  */
 extern void vdev_default_xlate(vdev_t *vd, const range_seg64_t *logical_rs,
     range_seg64_t *physical_rs, range_seg64_t *remain_rs);
-extern uint64_t vdev_default_asize(vdev_t *vd, uint64_t psize);
+extern uint64_t vdev_default_asize(vdev_t *vd, uint64_t psize, uint64_t txg);
 extern uint64_t vdev_default_min_asize(vdev_t *vd);
 extern uint64_t vdev_get_min_asize(vdev_t *vd);
 extern void vdev_set_min_asize(vdev_t *vd);