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/linux/drivers/scsi/fnic/
H A Dvnic_wq.c16 static int vnic_wq_get_ctrl(struct vnic_dev *vdev, struct vnic_wq *wq, in vnic_wq_get_ctrl() argument
19 wq->ctrl = vnic_dev_get_res(vdev, res_type, index); in vnic_wq_get_ctrl()
21 if (!wq->ctrl) in vnic_wq_get_ctrl()
28 static int vnic_wq_alloc_ring(struct vnic_dev *vdev, struct vnic_wq *wq, in vnic_wq_alloc_ring() argument
31 return vnic_dev_alloc_desc_ring(vdev, &wq->ring, desc_count, desc_size); in vnic_wq_alloc_ring()
35 static int vnic_wq_alloc_bufs(struct vnic_wq *wq) in vnic_wq_alloc_bufs() argument
38 unsigned int i, j, count = wq->ring.desc_count; in vnic_wq_alloc_bufs()
42 wq->bufs[i] = kzalloc(VNIC_WQ_BUF_BLK_SZ, GFP_ATOMIC); in vnic_wq_alloc_bufs()
43 if (!wq->bufs[i]) { in vnic_wq_alloc_bufs()
50 buf = wq->bufs[i]; in vnic_wq_alloc_bufs()
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H A Dvnic_wq_copy.h24 static inline unsigned int vnic_wq_copy_desc_avail(struct vnic_wq_copy *wq) in vnic_wq_copy_desc_avail() argument
26 return wq->ring.desc_avail; in vnic_wq_copy_desc_avail()
29 static inline unsigned int vnic_wq_copy_desc_in_use(struct vnic_wq_copy *wq) in vnic_wq_copy_desc_in_use() argument
31 return wq->ring.desc_count - 1 - wq->ring.desc_avail; in vnic_wq_copy_desc_in_use()
34 static inline void *vnic_wq_copy_next_desc(struct vnic_wq_copy *wq) in vnic_wq_copy_next_desc() argument
36 struct fcpio_host_req *desc = wq->ring.descs; in vnic_wq_copy_next_desc()
37 return &desc[wq->to_use_index]; in vnic_wq_copy_next_desc()
40 static inline void vnic_wq_copy_post(struct vnic_wq_copy *wq) in vnic_wq_copy_post() argument
43 ((wq->to_use_index + 1) == wq->ring.desc_count) ? in vnic_wq_copy_post()
44 (wq->to_use_index = 0) : (wq->to_use_index++); in vnic_wq_copy_post()
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H A Dvnic_wq_copy.c13 void vnic_wq_copy_enable(struct vnic_wq_copy *wq) in vnic_wq_copy_enable() argument
15 iowrite32(1, &wq->ctrl->enable); in vnic_wq_copy_enable()
18 int vnic_wq_copy_disable(struct vnic_wq_copy *wq) in vnic_wq_copy_disable() argument
22 iowrite32(0, &wq->ctrl->enable); in vnic_wq_copy_disable()
26 if (!(ioread32(&wq->ctrl->running))) in vnic_wq_copy_disable()
33 wq->index, ioread32(&wq->ctrl->fetch_index), in vnic_wq_copy_disable()
34 ioread32(&wq->ctrl->posted_index)); in vnic_wq_copy_disable()
39 void vnic_wq_copy_clean(struct vnic_wq_copy *wq, in vnic_wq_copy_clean() argument
40 void (*q_clean)(struct vnic_wq_copy *wq, in vnic_wq_copy_clean() argument
43 BUG_ON(ioread32(&wq->ctrl->enable)); in vnic_wq_copy_clean()
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H A Dvnic_wq.h86 static inline unsigned int vnic_wq_desc_avail(struct vnic_wq *wq) in vnic_wq_desc_avail() argument
89 return wq->ring.desc_avail; in vnic_wq_desc_avail()
92 static inline unsigned int vnic_wq_desc_used(struct vnic_wq *wq) in vnic_wq_desc_used() argument
95 return wq->ring.desc_count - wq->ring.desc_avail - 1; in vnic_wq_desc_used()
98 static inline void *vnic_wq_next_desc(struct vnic_wq *wq) in vnic_wq_next_desc() argument
100 return wq->to_use->desc; in vnic_wq_next_desc()
103 static inline void vnic_wq_post(struct vnic_wq *wq, in vnic_wq_post() argument
107 struct vnic_wq_buf *buf = wq->to_use; in vnic_wq_post()
122 iowrite32(buf->index, &wq->ctrl->posted_index); in vnic_wq_post()
124 wq->to_use = buf; in vnic_wq_post()
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/linux/drivers/scsi/snic/
H A Dvnic_wq.c12 static inline int vnic_wq_get_ctrl(struct vnic_dev *vdev, struct vnic_wq *wq, in vnic_wq_get_ctrl() argument
15 wq->ctrl = svnic_dev_get_res(vdev, res_type, index); in vnic_wq_get_ctrl()
16 if (!wq->ctrl) in vnic_wq_get_ctrl()
22 static inline int vnic_wq_alloc_ring(struct vnic_dev *vdev, struct vnic_wq *wq, in vnic_wq_alloc_ring() argument
25 return svnic_dev_alloc_desc_ring(vdev, &wq->ring, desc_count, in vnic_wq_alloc_ring()
29 static int vnic_wq_alloc_bufs(struct vnic_wq *wq) in vnic_wq_alloc_bufs() argument
32 unsigned int i, j, count = wq->ring.desc_count; in vnic_wq_alloc_bufs()
36 wq->bufs[i] = kzalloc(VNIC_WQ_BUF_BLK_SZ, GFP_ATOMIC); in vnic_wq_alloc_bufs()
37 if (!wq->bufs[i]) { in vnic_wq_alloc_bufs()
45 buf = wq->bufs[i]; in vnic_wq_alloc_bufs()
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H A Dvnic_wq.h71 static inline unsigned int svnic_wq_desc_avail(struct vnic_wq *wq) in svnic_wq_desc_avail() argument
74 return wq->ring.desc_avail; in svnic_wq_desc_avail()
77 static inline unsigned int svnic_wq_desc_used(struct vnic_wq *wq) in svnic_wq_desc_used() argument
80 return wq->ring.desc_count - wq->ring.desc_avail - 1; in svnic_wq_desc_used()
83 static inline void *svnic_wq_next_desc(struct vnic_wq *wq) in svnic_wq_next_desc() argument
85 return wq->to_use->desc; in svnic_wq_next_desc()
88 static inline void svnic_wq_post(struct vnic_wq *wq, in svnic_wq_post() argument
92 struct vnic_wq_buf *buf = wq->to_use; in svnic_wq_post()
107 iowrite32(buf->index, &wq->ctrl->posted_index); in svnic_wq_post()
109 wq->to_use = buf; in svnic_wq_post()
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/linux/drivers/net/ethernet/huawei/hinic/
H A Dhinic_hw_wq.c34 #define WQ_SIZE(wq) ((wq)->q_depth * (wq)->wqebb_size) argument
44 #define WQ_BASE_VADDR(wqs, wq) \ argument
45 ((void *)((wqs)->page_vaddr[(wq)->page_idx]) \
46 + (wq)->block_idx * WQ_BLOCK_SIZE)
48 #define WQ_BASE_PADDR(wqs, wq) \ argument
49 ((wqs)->page_paddr[(wq)->page_idx] \
50 + (wq)->block_idx * WQ_BLOCK_SIZE)
52 #define WQ_BASE_ADDR(wqs, wq) \ argument
53 ((void *)((wqs)->shadow_page_vaddr[(wq)->page_idx]) \
54 + (wq)->block_idx * WQ_BLOCK_SIZE)
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H A Dhinic_hw_qp.c61 #define SQ_MASKED_IDX(sq, idx) ((idx) & (sq)->wq->mask)
62 #define RQ_MASKED_IDX(rq, idx) ((idx) & (rq)->wq->mask)
98 struct hinic_wq *wq; in hinic_sq_prepare_ctxt() local
100 wq = sq->wq; in hinic_sq_prepare_ctxt()
101 ci_start = atomic_read(&wq->cons_idx); in hinic_sq_prepare_ctxt()
102 pi_start = atomic_read(&wq->prod_idx); in hinic_sq_prepare_ctxt()
105 wq_page_addr = be64_to_cpu(*wq->block_vaddr); in hinic_sq_prepare_ctxt()
112 if (wq->num_q_pages == 1) in hinic_sq_prepare_ctxt()
115 wq_block_pfn = HINIC_WQ_BLOCK_PFN(wq->block_paddr); in hinic_sq_prepare_ctxt()
160 struct hinic_wq *wq; in hinic_rq_prepare_ctxt() local
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/linux/fs/btrfs/
H A Dasync-thread.c50 struct btrfs_fs_info * __pure btrfs_workqueue_owner(const struct btrfs_workqueue *wq) in btrfs_workqueue_owner() argument
52 return wq->fs_info; in btrfs_workqueue_owner()
57 return work->wq->fs_info; in btrfs_work_owner()
60 bool btrfs_workqueue_normal_congested(const struct btrfs_workqueue *wq) in btrfs_workqueue_normal_congested() argument
68 if (wq->thresh == NO_THRESHOLD) in btrfs_workqueue_normal_congested()
71 return atomic_read(&wq->pending) > wq->thresh * 2; in btrfs_workqueue_normal_congested()
74 static void btrfs_init_workqueue(struct btrfs_workqueue *wq, in btrfs_init_workqueue() argument
77 wq->fs_info = fs_info; in btrfs_init_workqueue()
78 atomic_set(&wq->pending, 0); in btrfs_init_workqueue()
79 INIT_LIST_HEAD(&wq->ordered_list); in btrfs_init_workqueue()
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/linux/fs/autofs/
H A Dwaitq.c17 struct autofs_wait_queue *wq, *nwq; in autofs_catatonic_mode() local
28 wq = sbi->queues; in autofs_catatonic_mode()
30 while (wq) { in autofs_catatonic_mode()
31 nwq = wq->next; in autofs_catatonic_mode()
32 wq->status = -ENOENT; /* Magic is gone - report failure */ in autofs_catatonic_mode()
33 kfree(wq->name.name - wq->offset); in autofs_catatonic_mode()
34 wq->name.name = NULL; in autofs_catatonic_mode()
35 wake_up(&wq->queue); in autofs_catatonic_mode()
36 if (!--wq->wait_ctr) in autofs_catatonic_mode()
37 kfree(wq); in autofs_catatonic_mode()
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/linux/drivers/dma/idxd/
H A Ddevice.c18 static void idxd_wq_disable_cleanup(struct idxd_wq *wq);
19 static int idxd_wq_config_write(struct idxd_wq *wq);
42 static void free_hw_descs(struct idxd_wq *wq) in free_hw_descs() argument
46 for (i = 0; i < wq->num_descs; i++) in free_hw_descs()
47 kfree(wq->hw_descs[i]); in free_hw_descs()
49 kfree(wq->hw_descs); in free_hw_descs()
52 static int alloc_hw_descs(struct idxd_wq *wq, int num) in alloc_hw_descs() argument
54 struct device *dev = &wq->idxd->pdev->dev; in alloc_hw_descs()
58 wq->hw_descs = kcalloc_node(num, sizeof(struct dsa_hw_desc *), in alloc_hw_descs()
60 if (!wq->hw_descs) in alloc_hw_descs()
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H A Dcdev.c42 struct idxd_wq *wq; member
54 static void idxd_cdev_evl_drain_pasid(struct idxd_wq *wq, u32 pasid);
100 struct idxd_wq *wq = ctx->wq; in cdev_file_attr_visible() local
102 if (!wq_pasid_enabled(wq)) in cdev_file_attr_visible()
121 struct idxd_wq *wq = ctx->wq; in idxd_file_dev_release() local
122 struct idxd_device *idxd = wq->idxd; in idxd_file_dev_release()
128 if (wq_shared(wq)) { in idxd_file_dev_release()
133 rc = idxd_wq_disable_pasid(wq); in idxd_file_dev_release()
137 idxd_wq_drain(wq); in idxd_file_dev_release()
142 idxd_cdev_evl_drain_pasid(wq, ctx->pasid); in idxd_file_dev_release()
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H A Ddma.c20 return idxd_chan->wq; in to_idxd_wq()
27 struct idxd_device *idxd = desc->wq->idxd; in idxd_dma_complete_txd()
56 idxd_free_desc(desc->wq, desc); in idxd_dma_complete_txd()
66 static inline void idxd_prep_desc_common(struct idxd_wq *wq, in idxd_prep_desc_common() argument
88 struct idxd_wq *wq = to_idxd_wq(c); in idxd_dma_prep_interrupt() local
92 if (wq->state != IDXD_WQ_ENABLED) in idxd_dma_prep_interrupt()
96 desc = idxd_alloc_desc(wq, IDXD_OP_BLOCK); in idxd_dma_prep_interrupt()
100 idxd_prep_desc_common(wq, desc->hw, DSA_OPCODE_NOOP, in idxd_dma_prep_interrupt()
110 struct idxd_wq *wq = to_idxd_wq(c); in idxd_dma_submit_memcpy() local
112 struct idxd_device *idxd = wq->idxd; in idxd_dma_submit_memcpy()
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H A Didxd.h165 struct idxd_wq *wq; member
187 struct idxd_wq *wq; member
200 struct workqueue_struct *wq; member
309 struct idxd_wq *wq; member
367 struct workqueue_struct *wq; member
432 struct idxd_wq *wq; member
444 #define wq_confdev(wq) &wq->idxd_dev.conf_dev argument
454 static inline struct idxd_device_driver *wq_to_idxd_drv(struct idxd_wq *wq) in wq_to_idxd_drv() argument
456 struct device *dev = wq_confdev(wq); in wq_to_idxd_drv()
562 static inline bool is_idxd_wq_dmaengine(struct idxd_wq *wq) in is_idxd_wq_dmaengine() argument
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H A Dsubmit.c11 static struct idxd_desc *__get_desc(struct idxd_wq *wq, int idx, int cpu) in __get_desc() argument
14 struct idxd_device *idxd = wq->idxd; in __get_desc()
16 desc = wq->descs[idx]; in __get_desc()
27 struct idxd_desc *idxd_alloc_desc(struct idxd_wq *wq, enum idxd_op_type optype) in idxd_alloc_desc() argument
30 struct idxd_device *idxd = wq->idxd; in idxd_alloc_desc()
38 sbq = &wq->sbq; in idxd_alloc_desc()
44 return __get_desc(wq, idx, cpu); in idxd_alloc_desc()
62 return __get_desc(wq, idx, cpu); in idxd_alloc_desc()
66 void idxd_free_desc(struct idxd_wq *wq, struct idxd_desc *desc) in idxd_free_desc() argument
71 sbitmap_queue_clear(&wq->sbq, desc->id, cpu); in idxd_free_desc()
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H A Ddefaults.c10 struct idxd_wq *wq; in idxd_load_iaa_device_defaults() local
15 wq = idxd->wqs[0]; in idxd_load_iaa_device_defaults()
17 if (wq->state != IDXD_WQ_DISABLED) in idxd_load_iaa_device_defaults()
21 set_bit(WQ_FLAG_DEDICATED, &wq->flags); in idxd_load_iaa_device_defaults()
22 wq->threshold = 0; in idxd_load_iaa_device_defaults()
25 wq->size = idxd->max_wq_size; in idxd_load_iaa_device_defaults()
28 wq->priority = 10; in idxd_load_iaa_device_defaults()
31 wq->type = IDXD_WQT_KERNEL; in idxd_load_iaa_device_defaults()
35 wq->group = group; in idxd_load_iaa_device_defaults()
39 strscpy_pad(wq->name, "iaa_crypto"); in idxd_load_iaa_device_defaults()
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H A Dirq.c49 struct idxd_wq *wq = idxd->wqs[i]; in idxd_device_reinit() local
51 rc = idxd_wq_enable(wq); in idxd_device_reinit()
55 dev_name(wq_confdev(wq))); in idxd_device_reinit()
73 struct idxd_wq *wq = ie_to_wq(ie); in idxd_int_handle_revoke_drain() local
74 struct idxd_device *idxd = wq->idxd; in idxd_int_handle_revoke_drain()
88 portal = idxd_wq_portal_addr(wq); in idxd_int_handle_revoke_drain()
95 if (wq_dedicated(wq)) { in idxd_int_handle_revoke_drain()
98 rc = idxd_enqcmds(wq, portal, &desc); in idxd_int_handle_revoke_drain()
101 dev_warn(dev, "Failed to submit drain desc on wq %d\n", wq->id); in idxd_int_handle_revoke_drain()
156 struct idxd_wq *wq = ie_to_wq(ie); in idxd_int_handle_revoke() local
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H A Dsysfs.c342 struct idxd_wq *wq = idxd->wqs[i]; in group_work_queues_show() local
344 if (!wq->group) in group_work_queues_show()
347 if (wq->group->id == group->id) in group_work_queues_show()
348 rc += sysfs_emit_at(buf, rc, "wq%d.%d ", idxd->id, wq->id); in group_work_queues_show()
590 struct idxd_wq *wq = confdev_to_wq(dev); in wq_clients_show() local
592 return sysfs_emit(buf, "%d\n", wq->client_count); in wq_clients_show()
601 struct idxd_wq *wq = confdev_to_wq(dev); in wq_state_show() local
603 switch (wq->state) { in wq_state_show()
619 struct idxd_wq *wq = confdev_to_wq(dev); in wq_group_id_show() local
621 if (wq->group) in wq_group_id_show()
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/linux/include/linux/
H A Dswait.h121 static inline int swait_active(struct swait_queue_head *wq) in swait_active() argument
123 return !list_empty(&wq->task_list); in swait_active()
134 static inline bool swq_has_sleeper(struct swait_queue_head *wq) in swq_has_sleeper() argument
144 return swait_active(wq); in swq_has_sleeper()
158 #define ___swait_event(wq, condition, state, ret, cmd) \ argument
166 long __int = prepare_to_swait_event(&wq, &__wait, state);\
178 finish_swait(&wq, &__wait); \
182 #define __swait_event(wq, condition) \ argument
183 (void)___swait_event(wq, condition, TASK_UNINTERRUPTIBLE, 0, \
186 #define swait_event_exclusive(wq, condition) \ argument
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/linux/drivers/net/ethernet/mellanox/mlx5/core/
H A Dwq.c38 void *wqc, struct mlx5_wq_cyc *wq, in mlx5_wq_cyc_create() argument
41 u8 log_wq_stride = MLX5_GET(wq, wqc, log_wq_stride); in mlx5_wq_cyc_create()
42 u8 log_wq_sz = MLX5_GET(wq, wqc, log_wq_sz); in mlx5_wq_cyc_create()
43 struct mlx5_frag_buf_ctrl *fbc = &wq->fbc; in mlx5_wq_cyc_create()
52 wq->db = wq_ctrl->db.db; in mlx5_wq_cyc_create()
62 wq->sz = mlx5_wq_cyc_get_size(wq); in mlx5_wq_cyc_create()
74 void mlx5_wq_cyc_wqe_dump(struct mlx5_wq_cyc *wq, u16 ix, u8 nstrides) in mlx5_wq_cyc_wqe_dump() argument
84 len = nstrides << wq->fbc.log_stride; in mlx5_wq_cyc_wqe_dump()
85 wqe = mlx5_wq_cyc_get_wqe(wq, ix); in mlx5_wq_cyc_wqe_dump()
88 mlx5_wq_cyc_get_size(wq), wq->cur_sz, ix, len); in mlx5_wq_cyc_wqe_dump()
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/linux/Documentation/translations/zh_CN/core-api/
H A Dworkqueue.rst26 在很多情况下，需要一个异步的程序执行环境，工作队列（wq）API是这种情况下
41 在最初的wq实现中，多线程（MT）wq在每个CPU上有一个工作者线程，而单线程
42 （ST）wq在全系统有一个工作者线程。一个MT wq需要保持与CPU数量相同的工
43 作者数量。这些年来，内核增加了很多MT wq的用户，随着CPU核心数量的不断
46 尽管MT wq浪费了大量的资源，但所提供的并发性水平却不能令人满意。这个限
47 制在ST和MT wq中都有，只是在MT中没有那么严重。每个wq都保持着自己独立的
48 工作者池。一个MT wq只能为每个CPU提供一个执行环境，而一个ST wq则为整个
52 (MT wq)所提供的并发性水平和资源使用之间的矛盾也迫使其用户做出不必要的权衡，比
53 如libata选择使用ST wq来轮询PIO，并接受一个不必要的限制，即没有两个轮
54 询PIO可以同时进行。由于MT wq并没有提供更好的并发性，需要更高层次的并
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/linux/drivers/infiniband/hw/cxgb4/
H A Dt4.h480 static inline int t4_rqes_posted(struct t4_wq *wq) in t4_rqes_posted() argument
482 return wq->rq.in_use; in t4_rqes_posted()
485 static inline int t4_rq_empty(struct t4_wq *wq) in t4_rq_empty() argument
487 return wq->rq.in_use == 0; in t4_rq_empty()
490 static inline u32 t4_rq_avail(struct t4_wq *wq) in t4_rq_avail() argument
492 return wq->rq.size - 1 - wq->rq.in_use; in t4_rq_avail()
495 static inline void t4_rq_produce(struct t4_wq *wq, u8 len16) in t4_rq_produce() argument
497 wq->rq.in_use++; in t4_rq_produce()
498 if (++wq->rq.pidx == wq->rq.size) in t4_rq_produce()
499 wq->rq.pidx = 0; in t4_rq_produce()
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/linux/tools/testing/selftests/bpf/progs/
H A Dwq_failures.c54 struct bpf_wq *wq; in __flag() local
62 wq = &val->w; in __flag()
63 if (bpf_wq_init(wq, &key, 0) != 0) in __flag()
79 struct bpf_wq *wq; in __flag() local
87 wq = &val->w; in __flag()
88 if (bpf_wq_init(wq, &lru, 0) != 0) in __flag()
105 struct bpf_wq *wq; in test_wrong_wq_pointer() local
107 wq = bpf_map_lookup_elem(&array, &key); in test_wrong_wq_pointer()
108 if (!wq) in test_wrong_wq_pointer()
111 if (bpf_wq_init(wq, in test_wrong_wq_pointer()
131 struct bpf_wq *wq; test_wrong_wq_pointer_offset() local
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/linux/drivers/net/ethernet/mellanox/mlx5/core/lib/
H A Daso.c12 struct mlx5_cqwq wq; member
31 struct mlx5_wq_cyc wq; member
56 err = mlx5_cqwq_create(mdev, &param, cqc_data, &cq->wq, &cq->wq_ctrl); in mlx5_aso_alloc_cq()
64 for (i = 0; i < mlx5_cqwq_get_size(&cq->wq); i++) { in mlx5_aso_alloc_cq()
65 struct mlx5_cqe64 *cqe = mlx5_cqwq_get_wqe(&cq->wq, i); in mlx5_aso_alloc_cq()
161 void *sqc_wq = MLX5_ADDR_OF(sqc, sqc_data, wq); in mlx5_aso_alloc_sq()
162 struct mlx5_wq_cyc *wq = &sq->wq; in mlx5_aso_alloc_sq() local
170 err = mlx5_wq_cyc_create(mdev, &param, sqc_wq, wq, &sq->wq_ctrl); in mlx5_aso_alloc_sq()
173 wq->db = &wq->db[MLX5_SND_DBR]; in mlx5_aso_alloc_sq()
181 void *in, *sqc, *wq; in create_aso_sq() local
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/linux/drivers/edac/
H A Dwq.c4 static struct workqueue_struct *wq; variable
8 return queue_delayed_work(wq, work, delay); in edac_queue_work()
14 return mod_delayed_work(wq, work, delay); in edac_mod_work()
23 flush_workqueue(wq); in edac_stop_work()
31 wq = alloc_ordered_workqueue("edac-poller", WQ_MEM_RECLAIM); in edac_workqueue_setup()
32 if (!wq) in edac_workqueue_setup()
40 destroy_workqueue(wq); in edac_workqueue_teardown()
41 wq = NULL; in edac_workqueue_teardown()

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