Lines Matching full:ctrl
201 q_depth += atomic_read(&card->ctrl[i].stats.hw_q_depth); in dma_intr_coal_auto_tune()
210 static void rsxx_free_dma(struct rsxx_dma_ctrl *ctrl, struct rsxx_dma *dma) in rsxx_free_dma() argument
213 if (!dma_mapping_error(&ctrl->card->dev->dev, dma->dma_addr)) { in rsxx_free_dma()
214 dma_unmap_page(&ctrl->card->dev->dev, dma->dma_addr, in rsxx_free_dma()
225 static void rsxx_complete_dma(struct rsxx_dma_ctrl *ctrl, in rsxx_complete_dma() argument
230 ctrl->stats.dma_sw_err++; in rsxx_complete_dma()
232 ctrl->stats.dma_hw_fault++; in rsxx_complete_dma()
234 ctrl->stats.dma_cancelled++; in rsxx_complete_dma()
237 dma->cb(ctrl->card, dma->cb_data, status ? 1 : 0); in rsxx_complete_dma()
239 rsxx_free_dma(ctrl, dma); in rsxx_complete_dma()
242 int rsxx_cleanup_dma_queue(struct rsxx_dma_ctrl *ctrl, in rsxx_cleanup_dma_queue() argument
252 rsxx_complete_dma(ctrl, dma, DMA_CANCELLED); in rsxx_cleanup_dma_queue()
254 rsxx_free_dma(ctrl, dma); in rsxx_cleanup_dma_queue()
261 static void rsxx_requeue_dma(struct rsxx_dma_ctrl *ctrl, in rsxx_requeue_dma() argument
268 spin_lock_bh(&ctrl->queue_lock); in rsxx_requeue_dma()
269 ctrl->stats.sw_q_depth++; in rsxx_requeue_dma()
270 list_add(&dma->list, &ctrl->queue); in rsxx_requeue_dma()
271 spin_unlock_bh(&ctrl->queue_lock); in rsxx_requeue_dma()
274 static void rsxx_handle_dma_error(struct rsxx_dma_ctrl *ctrl, in rsxx_handle_dma_error() argument
281 dev_dbg(CARD_TO_DEV(ctrl->card), in rsxx_handle_dma_error()
286 ctrl->stats.crc_errors++; in rsxx_handle_dma_error()
288 ctrl->stats.hard_errors++; in rsxx_handle_dma_error()
290 ctrl->stats.soft_errors++; in rsxx_handle_dma_error()
295 if (ctrl->card->scrub_hard) { in rsxx_handle_dma_error()
298 ctrl->stats.reads_retried++; in rsxx_handle_dma_error()
301 ctrl->stats.reads_failed++; in rsxx_handle_dma_error()
305 ctrl->stats.reads_failed++; in rsxx_handle_dma_error()
313 ctrl->stats.reads_failed++; in rsxx_handle_dma_error()
319 ctrl->stats.writes_failed++; in rsxx_handle_dma_error()
324 ctrl->stats.discards_failed++; in rsxx_handle_dma_error()
328 dev_err(CARD_TO_DEV(ctrl->card), in rsxx_handle_dma_error()
338 rsxx_requeue_dma(ctrl, dma); in rsxx_handle_dma_error()
340 rsxx_complete_dma(ctrl, dma, status); in rsxx_handle_dma_error()
345 struct rsxx_dma_ctrl *ctrl = from_timer(ctrl, t, activity_timer); in dma_engine_stalled() local
348 if (atomic_read(&ctrl->stats.hw_q_depth) == 0 || in dma_engine_stalled()
349 unlikely(ctrl->card->eeh_state)) in dma_engine_stalled()
352 if (ctrl->cmd.idx != ioread32(ctrl->regmap + SW_CMD_IDX)) { in dma_engine_stalled()
357 dev_warn(CARD_TO_DEV(ctrl->card), in dma_engine_stalled()
359 iowrite32(ctrl->cmd.idx, ctrl->regmap + SW_CMD_IDX); in dma_engine_stalled()
360 mod_timer(&ctrl->activity_timer, in dma_engine_stalled()
363 dev_warn(CARD_TO_DEV(ctrl->card), in dma_engine_stalled()
365 ctrl->id); in dma_engine_stalled()
366 ctrl->card->dma_fault = 1; in dma_engine_stalled()
369 spin_lock(&ctrl->queue_lock); in dma_engine_stalled()
370 cnt = rsxx_cleanup_dma_queue(ctrl, &ctrl->queue, COMPLETE_DMA); in dma_engine_stalled()
371 spin_unlock(&ctrl->queue_lock); in dma_engine_stalled()
373 cnt += rsxx_dma_cancel(ctrl); in dma_engine_stalled()
376 dev_info(CARD_TO_DEV(ctrl->card), in dma_engine_stalled()
378 cnt, ctrl->id); in dma_engine_stalled()
382 static void rsxx_issue_dmas(struct rsxx_dma_ctrl *ctrl) in rsxx_issue_dmas() argument
390 hw_cmd_buf = ctrl->cmd.buf; in rsxx_issue_dmas()
392 if (unlikely(ctrl->card->halt) || in rsxx_issue_dmas()
393 unlikely(ctrl->card->eeh_state)) in rsxx_issue_dmas()
397 spin_lock_bh(&ctrl->queue_lock); in rsxx_issue_dmas()
398 if (list_empty(&ctrl->queue)) { in rsxx_issue_dmas()
399 spin_unlock_bh(&ctrl->queue_lock); in rsxx_issue_dmas()
402 spin_unlock_bh(&ctrl->queue_lock); in rsxx_issue_dmas()
404 tag = pop_tracker(ctrl->trackers); in rsxx_issue_dmas()
408 spin_lock_bh(&ctrl->queue_lock); in rsxx_issue_dmas()
409 dma = list_entry(ctrl->queue.next, struct rsxx_dma, list); in rsxx_issue_dmas()
411 ctrl->stats.sw_q_depth--; in rsxx_issue_dmas()
412 spin_unlock_bh(&ctrl->queue_lock); in rsxx_issue_dmas()
419 if (unlikely(ctrl->card->dma_fault)) { in rsxx_issue_dmas()
420 push_tracker(ctrl->trackers, tag); in rsxx_issue_dmas()
421 rsxx_complete_dma(ctrl, dma, DMA_CANCELLED); in rsxx_issue_dmas()
441 dma->dma_addr = dma_map_page(&ctrl->card->dev->dev, dma->page, in rsxx_issue_dmas()
443 if (dma_mapping_error(&ctrl->card->dev->dev, dma->dma_addr)) { in rsxx_issue_dmas()
444 push_tracker(ctrl->trackers, tag); in rsxx_issue_dmas()
445 rsxx_complete_dma(ctrl, dma, DMA_CANCELLED); in rsxx_issue_dmas()
450 set_tracker_dma(ctrl->trackers, tag, dma); in rsxx_issue_dmas()
451 hw_cmd_buf[ctrl->cmd.idx].command = dma->cmd; in rsxx_issue_dmas()
452 hw_cmd_buf[ctrl->cmd.idx].tag = tag; in rsxx_issue_dmas()
453 hw_cmd_buf[ctrl->cmd.idx]._rsvd = 0; in rsxx_issue_dmas()
454 hw_cmd_buf[ctrl->cmd.idx].sub_page = in rsxx_issue_dmas()
458 hw_cmd_buf[ctrl->cmd.idx].device_addr = in rsxx_issue_dmas()
461 hw_cmd_buf[ctrl->cmd.idx].host_addr = in rsxx_issue_dmas()
464 dev_dbg(CARD_TO_DEV(ctrl->card), in rsxx_issue_dmas()
466 ctrl->id, dma->laddr, tag, ctrl->cmd.idx); in rsxx_issue_dmas()
468 ctrl->cmd.idx = (ctrl->cmd.idx + 1) & RSXX_CS_IDX_MASK; in rsxx_issue_dmas()
472 ctrl->stats.writes_issued++; in rsxx_issue_dmas()
474 ctrl->stats.discards_issued++; in rsxx_issue_dmas()
476 ctrl->stats.reads_issued++; in rsxx_issue_dmas()
481 atomic_add(cmds_pending, &ctrl->stats.hw_q_depth); in rsxx_issue_dmas()
482 mod_timer(&ctrl->activity_timer, in rsxx_issue_dmas()
485 if (unlikely(ctrl->card->eeh_state)) { in rsxx_issue_dmas()
486 del_timer_sync(&ctrl->activity_timer); in rsxx_issue_dmas()
490 iowrite32(ctrl->cmd.idx, ctrl->regmap + SW_CMD_IDX); in rsxx_issue_dmas()
494 static void rsxx_dma_done(struct rsxx_dma_ctrl *ctrl) in rsxx_dma_done() argument
503 hw_st_buf = ctrl->status.buf; in rsxx_dma_done()
505 if (unlikely(ctrl->card->halt) || in rsxx_dma_done()
506 unlikely(ctrl->card->dma_fault) || in rsxx_dma_done()
507 unlikely(ctrl->card->eeh_state)) in rsxx_dma_done()
510 count = le16_to_cpu(hw_st_buf[ctrl->status.idx].count); in rsxx_dma_done()
512 while (count == ctrl->e_cnt) { in rsxx_dma_done()
522 status = hw_st_buf[ctrl->status.idx].status; in rsxx_dma_done()
523 tag = hw_st_buf[ctrl->status.idx].tag; in rsxx_dma_done()
525 dma = get_tracker_dma(ctrl->trackers, tag); in rsxx_dma_done()
527 spin_lock_irqsave(&ctrl->card->irq_lock, flags); in rsxx_dma_done()
528 rsxx_disable_ier(ctrl->card, CR_INTR_DMA_ALL); in rsxx_dma_done()
529 spin_unlock_irqrestore(&ctrl->card->irq_lock, flags); in rsxx_dma_done()
531 dev_err(CARD_TO_DEV(ctrl->card), in rsxx_dma_done()
534 tag, ctrl->status.idx, ctrl->id); in rsxx_dma_done()
538 dev_dbg(CARD_TO_DEV(ctrl->card), in rsxx_dma_done()
541 ctrl->id, dma->laddr, tag, status, count, in rsxx_dma_done()
542 ctrl->status.idx); in rsxx_dma_done()
544 atomic_dec(&ctrl->stats.hw_q_depth); in rsxx_dma_done()
546 mod_timer(&ctrl->activity_timer, in rsxx_dma_done()
550 rsxx_handle_dma_error(ctrl, dma, status); in rsxx_dma_done()
552 rsxx_complete_dma(ctrl, dma, 0); in rsxx_dma_done()
554 push_tracker(ctrl->trackers, tag); in rsxx_dma_done()
556 ctrl->status.idx = (ctrl->status.idx + 1) & in rsxx_dma_done()
558 ctrl->e_cnt++; in rsxx_dma_done()
560 count = le16_to_cpu(hw_st_buf[ctrl->status.idx].count); in rsxx_dma_done()
563 dma_intr_coal_auto_tune(ctrl->card); in rsxx_dma_done()
565 if (atomic_read(&ctrl->stats.hw_q_depth) == 0) in rsxx_dma_done()
566 del_timer_sync(&ctrl->activity_timer); in rsxx_dma_done()
568 spin_lock_irqsave(&ctrl->card->irq_lock, flags); in rsxx_dma_done()
569 rsxx_enable_ier(ctrl->card, CR_INTR_DMA(ctrl->id)); in rsxx_dma_done()
570 spin_unlock_irqrestore(&ctrl->card->irq_lock, flags); in rsxx_dma_done()
572 spin_lock_bh(&ctrl->queue_lock); in rsxx_dma_done()
573 if (ctrl->stats.sw_q_depth) in rsxx_dma_done()
574 queue_work(ctrl->issue_wq, &ctrl->issue_dma_work); in rsxx_dma_done()
575 spin_unlock_bh(&ctrl->queue_lock); in rsxx_dma_done()
580 struct rsxx_dma_ctrl *ctrl; in rsxx_schedule_issue() local
582 ctrl = container_of(work, struct rsxx_dma_ctrl, issue_dma_work); in rsxx_schedule_issue()
584 mutex_lock(&ctrl->work_lock); in rsxx_schedule_issue()
585 rsxx_issue_dmas(ctrl); in rsxx_schedule_issue()
586 mutex_unlock(&ctrl->work_lock); in rsxx_schedule_issue()
591 struct rsxx_dma_ctrl *ctrl; in rsxx_schedule_done() local
593 ctrl = container_of(work, struct rsxx_dma_ctrl, dma_done_work); in rsxx_schedule_done()
595 mutex_lock(&ctrl->work_lock); in rsxx_schedule_done()
596 rsxx_dma_done(ctrl); in rsxx_schedule_done()
597 mutex_unlock(&ctrl->work_lock); in rsxx_schedule_done()
742 spin_lock_bh(&card->ctrl[i].queue_lock); in rsxx_dma_queue_bio()
743 card->ctrl[i].stats.sw_q_depth += dma_cnt[i]; in rsxx_dma_queue_bio()
744 list_splice_tail(&dma_list[i], &card->ctrl[i].queue); in rsxx_dma_queue_bio()
745 spin_unlock_bh(&card->ctrl[i].queue_lock); in rsxx_dma_queue_bio()
747 queue_work(card->ctrl[i].issue_wq, in rsxx_dma_queue_bio()
748 &card->ctrl[i].issue_dma_work); in rsxx_dma_queue_bio()
756 rsxx_cleanup_dma_queue(&card->ctrl[i], &dma_list[i], in rsxx_dma_queue_bio()
763 int rsxx_hw_buffers_init(struct pci_dev *dev, struct rsxx_dma_ctrl *ctrl) in rsxx_hw_buffers_init() argument
765 ctrl->status.buf = dma_alloc_coherent(&dev->dev, STATUS_BUFFER_SIZE8, in rsxx_hw_buffers_init()
766 &ctrl->status.dma_addr, GFP_KERNEL); in rsxx_hw_buffers_init()
767 ctrl->cmd.buf = dma_alloc_coherent(&dev->dev, COMMAND_BUFFER_SIZE8, in rsxx_hw_buffers_init()
768 &ctrl->cmd.dma_addr, GFP_KERNEL); in rsxx_hw_buffers_init()
769 if (ctrl->status.buf == NULL || ctrl->cmd.buf == NULL) in rsxx_hw_buffers_init()
772 memset(ctrl->status.buf, 0xac, STATUS_BUFFER_SIZE8); in rsxx_hw_buffers_init()
773 iowrite32(lower_32_bits(ctrl->status.dma_addr), in rsxx_hw_buffers_init()
774 ctrl->regmap + SB_ADD_LO); in rsxx_hw_buffers_init()
775 iowrite32(upper_32_bits(ctrl->status.dma_addr), in rsxx_hw_buffers_init()
776 ctrl->regmap + SB_ADD_HI); in rsxx_hw_buffers_init()
778 memset(ctrl->cmd.buf, 0x83, COMMAND_BUFFER_SIZE8); in rsxx_hw_buffers_init()
779 iowrite32(lower_32_bits(ctrl->cmd.dma_addr), ctrl->regmap + CB_ADD_LO); in rsxx_hw_buffers_init()
780 iowrite32(upper_32_bits(ctrl->cmd.dma_addr), ctrl->regmap + CB_ADD_HI); in rsxx_hw_buffers_init()
782 ctrl->status.idx = ioread32(ctrl->regmap + HW_STATUS_CNT); in rsxx_hw_buffers_init()
783 if (ctrl->status.idx > RSXX_MAX_OUTSTANDING_CMDS) { in rsxx_hw_buffers_init()
785 ctrl->status.idx); in rsxx_hw_buffers_init()
788 iowrite32(ctrl->status.idx, ctrl->regmap + HW_STATUS_CNT); in rsxx_hw_buffers_init()
789 iowrite32(ctrl->status.idx, ctrl->regmap + SW_STATUS_CNT); in rsxx_hw_buffers_init()
791 ctrl->cmd.idx = ioread32(ctrl->regmap + HW_CMD_IDX); in rsxx_hw_buffers_init()
792 if (ctrl->cmd.idx > RSXX_MAX_OUTSTANDING_CMDS) { in rsxx_hw_buffers_init()
794 ctrl->status.idx); in rsxx_hw_buffers_init()
797 iowrite32(ctrl->cmd.idx, ctrl->regmap + HW_CMD_IDX); in rsxx_hw_buffers_init()
798 iowrite32(ctrl->cmd.idx, ctrl->regmap + SW_CMD_IDX); in rsxx_hw_buffers_init()
804 struct rsxx_dma_ctrl *ctrl) in rsxx_dma_ctrl_init() argument
809 memset(&ctrl->stats, 0, sizeof(ctrl->stats)); in rsxx_dma_ctrl_init()
811 ctrl->trackers = vmalloc(DMA_TRACKER_LIST_SIZE8); in rsxx_dma_ctrl_init()
812 if (!ctrl->trackers) in rsxx_dma_ctrl_init()
815 ctrl->trackers->head = 0; in rsxx_dma_ctrl_init()
817 ctrl->trackers->list[i].next_tag = i + 1; in rsxx_dma_ctrl_init()
818 ctrl->trackers->list[i].dma = NULL; in rsxx_dma_ctrl_init()
820 ctrl->trackers->list[RSXX_MAX_OUTSTANDING_CMDS-1].next_tag = -1; in rsxx_dma_ctrl_init()
821 spin_lock_init(&ctrl->trackers->lock); in rsxx_dma_ctrl_init()
823 spin_lock_init(&ctrl->queue_lock); in rsxx_dma_ctrl_init()
824 mutex_init(&ctrl->work_lock); in rsxx_dma_ctrl_init()
825 INIT_LIST_HEAD(&ctrl->queue); in rsxx_dma_ctrl_init()
827 timer_setup(&ctrl->activity_timer, dma_engine_stalled, 0); in rsxx_dma_ctrl_init()
829 ctrl->issue_wq = alloc_ordered_workqueue(DRIVER_NAME"_issue", 0); in rsxx_dma_ctrl_init()
830 if (!ctrl->issue_wq) in rsxx_dma_ctrl_init()
833 ctrl->done_wq = alloc_ordered_workqueue(DRIVER_NAME"_done", 0); in rsxx_dma_ctrl_init()
834 if (!ctrl->done_wq) in rsxx_dma_ctrl_init()
837 INIT_WORK(&ctrl->issue_dma_work, rsxx_schedule_issue); in rsxx_dma_ctrl_init()
838 INIT_WORK(&ctrl->dma_done_work, rsxx_schedule_done); in rsxx_dma_ctrl_init()
840 st = rsxx_hw_buffers_init(dev, ctrl); in rsxx_dma_ctrl_init()
902 card->ctrl[i].regmap = card->regmap + (i * 4096); in rsxx_dma_setup()
911 st = rsxx_dma_ctrl_init(card->dev, &card->ctrl[i]); in rsxx_dma_setup()
915 card->ctrl[i].card = card; in rsxx_dma_setup()
916 card->ctrl[i].id = i; in rsxx_dma_setup()
935 struct rsxx_dma_ctrl *ctrl = &card->ctrl[i]; in rsxx_dma_setup() local
937 if (ctrl->issue_wq) { in rsxx_dma_setup()
938 destroy_workqueue(ctrl->issue_wq); in rsxx_dma_setup()
939 ctrl->issue_wq = NULL; in rsxx_dma_setup()
942 if (ctrl->done_wq) { in rsxx_dma_setup()
943 destroy_workqueue(ctrl->done_wq); in rsxx_dma_setup()
944 ctrl->done_wq = NULL; in rsxx_dma_setup()
947 if (ctrl->trackers) in rsxx_dma_setup()
948 vfree(ctrl->trackers); in rsxx_dma_setup()
950 if (ctrl->status.buf) in rsxx_dma_setup()
952 ctrl->status.buf, in rsxx_dma_setup()
953 ctrl->status.dma_addr); in rsxx_dma_setup()
954 if (ctrl->cmd.buf) in rsxx_dma_setup()
956 ctrl->cmd.buf, ctrl->cmd.dma_addr); in rsxx_dma_setup()
962 int rsxx_dma_cancel(struct rsxx_dma_ctrl *ctrl) in rsxx_dma_cancel() argument
970 dma = get_tracker_dma(ctrl->trackers, i); in rsxx_dma_cancel()
972 atomic_dec(&ctrl->stats.hw_q_depth); in rsxx_dma_cancel()
973 rsxx_complete_dma(ctrl, dma, DMA_CANCELLED); in rsxx_dma_cancel()
974 push_tracker(ctrl->trackers, i); in rsxx_dma_cancel()
984 struct rsxx_dma_ctrl *ctrl; in rsxx_dma_destroy() local
988 ctrl = &card->ctrl[i]; in rsxx_dma_destroy()
990 if (ctrl->issue_wq) { in rsxx_dma_destroy()
991 destroy_workqueue(ctrl->issue_wq); in rsxx_dma_destroy()
992 ctrl->issue_wq = NULL; in rsxx_dma_destroy()
995 if (ctrl->done_wq) { in rsxx_dma_destroy()
996 destroy_workqueue(ctrl->done_wq); in rsxx_dma_destroy()
997 ctrl->done_wq = NULL; in rsxx_dma_destroy()
1000 if (timer_pending(&ctrl->activity_timer)) in rsxx_dma_destroy()
1001 del_timer_sync(&ctrl->activity_timer); in rsxx_dma_destroy()
1004 spin_lock_bh(&ctrl->queue_lock); in rsxx_dma_destroy()
1005 rsxx_cleanup_dma_queue(ctrl, &ctrl->queue, COMPLETE_DMA); in rsxx_dma_destroy()
1006 spin_unlock_bh(&ctrl->queue_lock); in rsxx_dma_destroy()
1008 rsxx_dma_cancel(ctrl); in rsxx_dma_destroy()
1010 vfree(ctrl->trackers); in rsxx_dma_destroy()
1013 ctrl->status.buf, ctrl->status.dma_addr); in rsxx_dma_destroy()
1015 ctrl->cmd.buf, ctrl->cmd.dma_addr); in rsxx_dma_destroy()
1036 dma = get_tracker_dma(card->ctrl[i].trackers, j); in rsxx_eeh_save_issued_dmas()
1041 card->ctrl[i].stats.writes_issued--; in rsxx_eeh_save_issued_dmas()
1043 card->ctrl[i].stats.discards_issued--; in rsxx_eeh_save_issued_dmas()
1045 card->ctrl[i].stats.reads_issued--; in rsxx_eeh_save_issued_dmas()
1056 push_tracker(card->ctrl[i].trackers, j); in rsxx_eeh_save_issued_dmas()
1060 spin_lock_bh(&card->ctrl[i].queue_lock); in rsxx_eeh_save_issued_dmas()
1061 list_splice(&issued_dmas[i], &card->ctrl[i].queue); in rsxx_eeh_save_issued_dmas()
1063 atomic_sub(cnt, &card->ctrl[i].stats.hw_q_depth); in rsxx_eeh_save_issued_dmas()
1064 card->ctrl[i].stats.sw_q_depth += cnt; in rsxx_eeh_save_issued_dmas()
1065 card->ctrl[i].e_cnt = 0; in rsxx_eeh_save_issued_dmas()
1066 spin_unlock_bh(&card->ctrl[i].queue_lock); in rsxx_eeh_save_issued_dmas()