Lines Matching +full:dev +full:- +full:ctrl
1 // SPDX-License-Identifier: GPL-2.0+
12 #include <dm/device-internal.h>
34 struct nvme_dev *dev; member
50 static int nvme_wait_ready(struct nvme_dev *dev, bool enabled) in nvme_wait_ready() argument
57 timeout = NVME_CAP_TIMEOUT(dev->cap) * 500; in nvme_wait_ready()
61 if ((readl(&dev->bar->csts) & NVME_CSTS_RDY) == bit) in nvme_wait_ready()
65 return -ETIME; in nvme_wait_ready()
68 static int nvme_setup_prps(struct nvme_dev *dev, u64 *prp2, in nvme_setup_prps() argument
71 u32 page_size = dev->page_size; in nvme_setup_prps()
72 int offset = dma_addr & (page_size - 1); in nvme_setup_prps()
76 length -= (page_size - offset); in nvme_setup_prps()
84 dma_addr += (page_size - offset); in nvme_setup_prps()
93 if (nprps > dev->prp_entry_num) { in nvme_setup_prps()
94 free(dev->prp_pool); in nvme_setup_prps()
95 dev->prp_pool = malloc(nprps << 3); in nvme_setup_prps()
96 if (!dev->prp_pool) { in nvme_setup_prps()
98 return -ENOMEM; in nvme_setup_prps()
100 dev->prp_entry_num = nprps; in nvme_setup_prps()
103 prp_pool = dev->prp_pool; in nvme_setup_prps()
106 if (i == ((page_size >> 3) - 1)) { in nvme_setup_prps()
114 nprps--; in nvme_setup_prps()
116 *prp2 = (ulong)dev->prp_pool; in nvme_setup_prps()
130 u64 start = (ulong)&nvmeq->cqes[index]; in nvme_read_completion_status()
135 return le16_to_cpu(readw(&(nvmeq->cqes[index].status))); in nvme_read_completion_status()
139 * nvme_submit_cmd() - copy a command into a queue and ring the doorbell
146 u16 tail = nvmeq->sq_tail; in nvme_submit_cmd()
148 memcpy(&nvmeq->sq_cmds[tail], cmd, sizeof(*cmd)); in nvme_submit_cmd()
149 flush_dcache_range((ulong)&nvmeq->sq_cmds[tail], in nvme_submit_cmd()
150 (ulong)&nvmeq->sq_cmds[tail] + sizeof(*cmd)); in nvme_submit_cmd()
152 if (++tail == nvmeq->q_depth) in nvme_submit_cmd()
154 writel(tail, nvmeq->q_db); in nvme_submit_cmd()
155 nvmeq->sq_tail = tail; in nvme_submit_cmd()
162 u16 head = nvmeq->cq_head; in nvme_submit_sync_cmd()
163 u16 phase = nvmeq->cq_phase; in nvme_submit_sync_cmd()
168 cmd->common.command_id = nvme_get_cmd_id(); in nvme_submit_sync_cmd()
177 if (timeout_us > 0 && (timer_get_us() - start_time) in nvme_submit_sync_cmd()
179 return -ETIMEDOUT; in nvme_submit_sync_cmd()
187 if (++head == nvmeq->q_depth) { in nvme_submit_sync_cmd()
191 writel(head, nvmeq->q_db + nvmeq->dev->db_stride); in nvme_submit_sync_cmd()
192 nvmeq->cq_head = head; in nvme_submit_sync_cmd()
193 nvmeq->cq_phase = phase; in nvme_submit_sync_cmd()
195 return -EIO; in nvme_submit_sync_cmd()
199 *result = le32_to_cpu(readl(&(nvmeq->cqes[head].result))); in nvme_submit_sync_cmd()
201 if (++head == nvmeq->q_depth) { in nvme_submit_sync_cmd()
205 writel(head, nvmeq->q_db + nvmeq->dev->db_stride); in nvme_submit_sync_cmd()
206 nvmeq->cq_head = head; in nvme_submit_sync_cmd()
207 nvmeq->cq_phase = phase; in nvme_submit_sync_cmd()
212 static int nvme_submit_admin_cmd(struct nvme_dev *dev, struct nvme_command *cmd, in nvme_submit_admin_cmd() argument
215 return nvme_submit_sync_cmd(dev->queues[NVME_ADMIN_Q], cmd, in nvme_submit_admin_cmd()
219 static struct nvme_queue *nvme_alloc_queue(struct nvme_dev *dev, in nvme_alloc_queue() argument
227 nvmeq->cqes = (void *)memalign(4096, NVME_CQ_SIZE(depth)); in nvme_alloc_queue()
228 if (!nvmeq->cqes) in nvme_alloc_queue()
230 memset((void *)nvmeq->cqes, 0, NVME_CQ_SIZE(depth)); in nvme_alloc_queue()
232 nvmeq->sq_cmds = (void *)memalign(4096, NVME_SQ_SIZE(depth)); in nvme_alloc_queue()
233 if (!nvmeq->sq_cmds) in nvme_alloc_queue()
235 memset((void *)nvmeq->sq_cmds, 0, NVME_SQ_SIZE(depth)); in nvme_alloc_queue()
237 nvmeq->dev = dev; in nvme_alloc_queue()
239 nvmeq->cq_head = 0; in nvme_alloc_queue()
240 nvmeq->cq_phase = 1; in nvme_alloc_queue()
241 nvmeq->q_db = &dev->dbs[qid * 2 * dev->db_stride]; in nvme_alloc_queue()
242 nvmeq->q_depth = depth; in nvme_alloc_queue()
243 nvmeq->qid = qid; in nvme_alloc_queue()
244 dev->queue_count++; in nvme_alloc_queue()
245 dev->queues[qid] = nvmeq; in nvme_alloc_queue()
250 free((void *)nvmeq->cqes); in nvme_alloc_queue()
257 static int nvme_delete_queue(struct nvme_dev *dev, u8 opcode, u16 id) in nvme_delete_queue() argument
265 return nvme_submit_admin_cmd(dev, &c, NULL); in nvme_delete_queue()
268 static int nvme_delete_sq(struct nvme_dev *dev, u16 sqid) in nvme_delete_sq() argument
270 return nvme_delete_queue(dev, nvme_admin_delete_sq, sqid); in nvme_delete_sq()
273 static int nvme_delete_cq(struct nvme_dev *dev, u16 cqid) in nvme_delete_cq() argument
275 return nvme_delete_queue(dev, nvme_admin_delete_cq, cqid); in nvme_delete_cq()
278 static int nvme_enable_ctrl(struct nvme_dev *dev) in nvme_enable_ctrl() argument
280 dev->ctrl_config &= ~NVME_CC_SHN_MASK; in nvme_enable_ctrl()
281 dev->ctrl_config |= NVME_CC_ENABLE; in nvme_enable_ctrl()
282 writel(cpu_to_le32(dev->ctrl_config), &dev->bar->cc); in nvme_enable_ctrl()
284 return nvme_wait_ready(dev, true); in nvme_enable_ctrl()
287 static int nvme_disable_ctrl(struct nvme_dev *dev) in nvme_disable_ctrl() argument
289 dev->ctrl_config &= ~NVME_CC_SHN_MASK; in nvme_disable_ctrl()
290 dev->ctrl_config &= ~NVME_CC_ENABLE; in nvme_disable_ctrl()
291 writel(cpu_to_le32(dev->ctrl_config), &dev->bar->cc); in nvme_disable_ctrl()
293 return nvme_wait_ready(dev, false); in nvme_disable_ctrl()
298 free((void *)nvmeq->cqes); in nvme_free_queue()
299 free(nvmeq->sq_cmds); in nvme_free_queue()
303 static void nvme_free_queues(struct nvme_dev *dev, int lowest) in nvme_free_queues() argument
307 for (i = dev->queue_count - 1; i >= lowest; i--) { in nvme_free_queues()
308 struct nvme_queue *nvmeq = dev->queues[i]; in nvme_free_queues()
309 dev->queue_count--; in nvme_free_queues()
310 dev->queues[i] = NULL; in nvme_free_queues()
317 struct nvme_dev *dev = nvmeq->dev; in nvme_init_queue() local
319 nvmeq->sq_tail = 0; in nvme_init_queue()
320 nvmeq->cq_head = 0; in nvme_init_queue()
321 nvmeq->cq_phase = 1; in nvme_init_queue()
322 nvmeq->q_db = &dev->dbs[qid * 2 * dev->db_stride]; in nvme_init_queue()
323 memset((void *)nvmeq->cqes, 0, NVME_CQ_SIZE(nvmeq->q_depth)); in nvme_init_queue()
324 flush_dcache_range((ulong)nvmeq->cqes, in nvme_init_queue()
325 (ulong)nvmeq->cqes + NVME_CQ_SIZE(nvmeq->q_depth)); in nvme_init_queue()
326 dev->online_queues++; in nvme_init_queue()
329 static int nvme_configure_admin_queue(struct nvme_dev *dev) in nvme_configure_admin_queue() argument
333 u64 cap = dev->cap; in nvme_configure_admin_queue()
343 return -ENODEV; in nvme_configure_admin_queue()
352 result = nvme_disable_ctrl(dev); in nvme_configure_admin_queue()
356 nvmeq = dev->queues[NVME_ADMIN_Q]; in nvme_configure_admin_queue()
358 nvmeq = nvme_alloc_queue(dev, 0, NVME_AQ_DEPTH); in nvme_configure_admin_queue()
360 return -ENOMEM; in nvme_configure_admin_queue()
363 aqa = nvmeq->q_depth - 1; in nvme_configure_admin_queue()
367 dev->page_size = 1 << page_shift; in nvme_configure_admin_queue()
369 dev->ctrl_config = NVME_CC_CSS_NVM; in nvme_configure_admin_queue()
370 dev->ctrl_config |= (page_shift - 12) << NVME_CC_MPS_SHIFT; in nvme_configure_admin_queue()
371 dev->ctrl_config |= NVME_CC_ARB_RR | NVME_CC_SHN_NONE; in nvme_configure_admin_queue()
372 dev->ctrl_config |= NVME_CC_IOSQES | NVME_CC_IOCQES; in nvme_configure_admin_queue()
374 writel(aqa, &dev->bar->aqa); in nvme_configure_admin_queue()
375 nvme_writeq((ulong)nvmeq->sq_cmds, &dev->bar->asq); in nvme_configure_admin_queue()
376 nvme_writeq((ulong)nvmeq->cqes, &dev->bar->acq); in nvme_configure_admin_queue()
378 result = nvme_enable_ctrl(dev); in nvme_configure_admin_queue()
382 nvmeq->cq_vector = 0; in nvme_configure_admin_queue()
384 nvme_init_queue(dev->queues[NVME_ADMIN_Q], 0); in nvme_configure_admin_queue()
389 nvme_free_queues(dev, 0); in nvme_configure_admin_queue()
394 static int nvme_alloc_cq(struct nvme_dev *dev, u16 qid, in nvme_alloc_cq() argument
402 c.create_cq.prp1 = cpu_to_le64((ulong)nvmeq->cqes); in nvme_alloc_cq()
404 c.create_cq.qsize = cpu_to_le16(nvmeq->q_depth - 1); in nvme_alloc_cq()
406 c.create_cq.irq_vector = cpu_to_le16(nvmeq->cq_vector); in nvme_alloc_cq()
408 return nvme_submit_admin_cmd(dev, &c, NULL); in nvme_alloc_cq()
411 static int nvme_alloc_sq(struct nvme_dev *dev, u16 qid, in nvme_alloc_sq() argument
419 c.create_sq.prp1 = cpu_to_le64((ulong)nvmeq->sq_cmds); in nvme_alloc_sq()
421 c.create_sq.qsize = cpu_to_le16(nvmeq->q_depth - 1); in nvme_alloc_sq()
425 return nvme_submit_admin_cmd(dev, &c, NULL); in nvme_alloc_sq()
428 int nvme_identify(struct nvme_dev *dev, unsigned nsid, in nvme_identify() argument
432 u32 page_size = dev->page_size; in nvme_identify()
433 int offset = dma_addr & (page_size - 1); in nvme_identify()
442 length -= (page_size - offset); in nvme_identify()
446 dma_addr += (page_size - offset); in nvme_identify()
452 ret = nvme_submit_admin_cmd(dev, &c, NULL); in nvme_identify()
460 int nvme_get_features(struct nvme_dev *dev, unsigned fid, unsigned nsid, in nvme_get_features() argument
476 return nvme_submit_admin_cmd(dev, &c, result); in nvme_get_features()
479 int nvme_set_features(struct nvme_dev *dev, unsigned fid, unsigned dword11, in nvme_set_features() argument
495 return nvme_submit_admin_cmd(dev, &c, result); in nvme_set_features()
500 struct nvme_dev *dev = nvmeq->dev; in nvme_create_queue() local
503 nvmeq->cq_vector = qid - 1; in nvme_create_queue()
504 result = nvme_alloc_cq(dev, qid, nvmeq); in nvme_create_queue()
508 result = nvme_alloc_sq(dev, qid, nvmeq); in nvme_create_queue()
517 nvme_delete_sq(dev, qid); in nvme_create_queue()
519 nvme_delete_cq(dev, qid); in nvme_create_queue()
524 static int nvme_set_queue_count(struct nvme_dev *dev, int count) in nvme_set_queue_count() argument
528 u32 q_count = (count - 1) | ((count - 1) << 16); in nvme_set_queue_count()
530 status = nvme_set_features(dev, NVME_FEAT_NUM_QUEUES, in nvme_set_queue_count()
541 static void nvme_create_io_queues(struct nvme_dev *dev) in nvme_create_io_queues() argument
545 for (i = dev->queue_count; i <= dev->max_qid; i++) in nvme_create_io_queues()
546 if (!nvme_alloc_queue(dev, i, dev->q_depth)) in nvme_create_io_queues()
549 for (i = dev->online_queues; i <= dev->queue_count - 1; i++) in nvme_create_io_queues()
550 if (nvme_create_queue(dev->queues[i], i)) in nvme_create_io_queues()
554 static int nvme_setup_io_queues(struct nvme_dev *dev) in nvme_setup_io_queues() argument
560 result = nvme_set_queue_count(dev, nr_io_queues); in nvme_setup_io_queues()
564 dev->max_qid = nr_io_queues; in nvme_setup_io_queues()
567 nvme_free_queues(dev, nr_io_queues + 1); in nvme_setup_io_queues()
568 nvme_create_io_queues(dev); in nvme_setup_io_queues()
573 static int nvme_get_info_from_identify(struct nvme_dev *dev) in nvme_get_info_from_identify() argument
576 struct nvme_id_ctrl *ctrl = (struct nvme_id_ctrl *)buf; in nvme_get_info_from_identify() local
578 int shift = NVME_CAP_MPSMIN(dev->cap) + 12; in nvme_get_info_from_identify()
580 ret = nvme_identify(dev, 0, 1, (dma_addr_t)ctrl); in nvme_get_info_from_identify()
582 return -EIO; in nvme_get_info_from_identify()
584 dev->nn = le32_to_cpu(ctrl->nn); in nvme_get_info_from_identify()
585 dev->vwc = ctrl->vwc; in nvme_get_info_from_identify()
586 memcpy(dev->serial, ctrl->sn, sizeof(ctrl->sn)); in nvme_get_info_from_identify()
587 memcpy(dev->model, ctrl->mn, sizeof(ctrl->mn)); in nvme_get_info_from_identify()
588 memcpy(dev->firmware_rev, ctrl->fr, sizeof(ctrl->fr)); in nvme_get_info_from_identify()
589 if (ctrl->mdts) in nvme_get_info_from_identify()
590 dev->max_transfer_shift = (ctrl->mdts + shift); in nvme_get_info_from_identify()
604 * u16 lbas = 1 << (dev->max_transfer_shift - ns->lba_shift); in nvme_get_info_from_identify()
607 * which means dev->max_transfer_shift = 15 + 9 (ns->lba_shift). in nvme_get_info_from_identify()
610 dev->max_transfer_shift = 20; in nvme_get_info_from_identify()
619 struct udevice *dev; in nvme_scan_namespace() local
626 uclass_foreach_dev(dev, uc) { in nvme_scan_namespace()
627 ret = device_probe(dev); in nvme_scan_namespace()
637 struct nvme_dev *ndev = dev_get_priv(udev->parent); in nvme_blk_probe()
646 ns->dev = ndev; in nvme_blk_probe()
648 ns->ns_id = trailing_strtol(udev->name) + 1; in nvme_blk_probe()
649 if (nvme_identify(ndev, ns->ns_id, 0, (dma_addr_t)id)) in nvme_blk_probe()
650 return -EIO; in nvme_blk_probe()
652 flbas = id->flbas & NVME_NS_FLBAS_LBA_MASK; in nvme_blk_probe()
653 ns->flbas = flbas; in nvme_blk_probe()
654 ns->lba_shift = id->lbaf[flbas].ds; in nvme_blk_probe()
655 ns->mode_select_num_blocks = le64_to_cpu(id->nsze); in nvme_blk_probe()
656 ns->mode_select_block_len = 1 << ns->lba_shift; in nvme_blk_probe()
657 list_add(&ns->list, &ndev->namespaces); in nvme_blk_probe()
659 desc->lba = ns->mode_select_num_blocks; in nvme_blk_probe()
660 desc->log2blksz = ns->lba_shift; in nvme_blk_probe()
661 desc->blksz = 1 << ns->lba_shift; in nvme_blk_probe()
662 desc->bdev = udev; in nvme_blk_probe()
663 pplat = dev_get_parent_platdata(udev->parent); in nvme_blk_probe()
664 sprintf(desc->vendor, "0x%.4x", pplat->vendor); in nvme_blk_probe()
665 memcpy(desc->product, ndev->serial, sizeof(ndev->serial)); in nvme_blk_probe()
666 memcpy(desc->revision, ndev->firmware_rev, sizeof(ndev->firmware_rev)); in nvme_blk_probe()
675 struct nvme_dev *dev = ns->dev; in nvme_blk_rw() local
680 u64 total_len = blkcnt << desc->log2blksz; in nvme_blk_rw()
684 u16 lbas = 1 << (dev->max_transfer_shift - ns->lba_shift); in nvme_blk_rw()
693 c.rw.nsid = cpu_to_le32(ns->ns_id); in nvme_blk_rw()
706 total_lbas -= lbas; in nvme_blk_rw()
709 if (nvme_setup_prps(dev, &prp2, in nvme_blk_rw()
710 lbas << ns->lba_shift, (ulong)buffer)) in nvme_blk_rw()
711 return -EIO; in nvme_blk_rw()
714 c.rw.length = cpu_to_le16(lbas - 1); in nvme_blk_rw()
717 status = nvme_submit_sync_cmd(dev->queues[NVME_IO_Q], in nvme_blk_rw()
721 temp_len -= (u32)lbas << ns->lba_shift; in nvme_blk_rw()
722 buffer += lbas << ns->lba_shift; in nvme_blk_rw()
729 return (total_len - temp_len) >> desc->log2blksz; in nvme_blk_rw()
750 .name = "nvme-blk",
772 ndev->instance = trailing_strtol(udev->name); in nvme_probe()
774 INIT_LIST_HEAD(&ndev->namespaces); in nvme_probe()
775 ndev->bar = dm_pci_map_bar(udev, PCI_BASE_ADDRESS_0, in nvme_probe()
777 if (readl(&ndev->bar->csts) == -1) { in nvme_probe()
778 ret = -ENODEV; in nvme_probe()
779 printf("Error: %s: Out of memory!\n", udev->name); in nvme_probe()
783 ndev->queues = malloc(NVME_Q_NUM * sizeof(struct nvme_queue *)); in nvme_probe()
784 if (!ndev->queues) { in nvme_probe()
785 ret = -ENOMEM; in nvme_probe()
786 printf("Error: %s: Out of memory!\n", udev->name); in nvme_probe()
789 memset(ndev->queues, 0, NVME_Q_NUM * sizeof(struct nvme_queue *)); in nvme_probe()
791 ndev->prp_pool = malloc(MAX_PRP_POOL); in nvme_probe()
792 if (!ndev->prp_pool) { in nvme_probe()
793 ret = -ENOMEM; in nvme_probe()
794 printf("Error: %s: Out of memory!\n", udev->name); in nvme_probe()
797 ndev->prp_entry_num = MAX_PRP_POOL >> 3; in nvme_probe()
799 ndev->cap = nvme_readq(&ndev->bar->cap); in nvme_probe()
800 ndev->q_depth = min_t(int, NVME_CAP_MQES(ndev->cap) + 1, NVME_Q_DEPTH); in nvme_probe()
801 ndev->db_stride = 1 << NVME_CAP_STRIDE(ndev->cap); in nvme_probe()
802 ndev->dbs = ((void __iomem *)ndev->bar) + 4096; in nvme_probe()
817 free((void *)ndev->queues); in nvme_probe()