1 // SPDX-License-Identifier: GPL-2.0
10 static int nvme_set_max_append(struct nvme_ctrl *ctrl)  in nvme_set_max_append()  argument
18 		return -ENOMEM;  in nvme_set_max_append()
24 	status = nvme_submit_sync_cmd(ctrl->admin_q, &c, id, sizeof(*id));  in nvme_set_max_append()
30 	if (id->zasl)  in nvme_set_max_append()
31 		ctrl->max_zone_append = 1 << (id->zasl + 3);  in nvme_set_max_append()
33 		ctrl->max_zone_append = ctrl->max_hw_sectors;  in nvme_set_max_append()
41 	struct nvme_effects_log *log = ns->head->effects;  in nvme_query_zone_info()
47 	if ((le32_to_cpu(log->iocs[nvme_cmd_zone_append]) &  in nvme_query_zone_info()
49 		if (test_and_clear_bit(NVME_NS_FORCE_RO, &ns->flags))  in nvme_query_zone_info()
50 			dev_warn(ns->ctrl->device,  in nvme_query_zone_info()
51 				 "Zone Append supported for zoned namespace:%d. Remove read-only mode\n",  in nvme_query_zone_info()
52 				 ns->head->ns_id);  in nvme_query_zone_info()
54 		set_bit(NVME_NS_FORCE_RO, &ns->flags);  in nvme_query_zone_info()
55 		dev_warn(ns->ctrl->device,  in nvme_query_zone_info()
56 			 "Zone Append not supported for zoned namespace:%d. Forcing to read-only mode\n",  in nvme_query_zone_info()
57 			 ns->head->ns_id);  in nvme_query_zone_info()
61 	if (!ns->ctrl->max_zone_append) {  in nvme_query_zone_info()
62 		status = nvme_set_max_append(ns->ctrl);  in nvme_query_zone_info()
69 		return -ENOMEM;  in nvme_query_zone_info()
72 	c.identify.nsid = cpu_to_le32(ns->head->ns_id);  in nvme_query_zone_info()
76 	status = nvme_submit_sync_cmd(ns->ctrl->admin_q, &c, id, sizeof(*id));  in nvme_query_zone_info()
84 	if (id->zoc) {  in nvme_query_zone_info()
85 		dev_warn(ns->ctrl->device,  in nvme_query_zone_info()
87 			le16_to_cpu(id->zoc), ns->head->ns_id);  in nvme_query_zone_info()
88 		status = -ENODEV;  in nvme_query_zone_info()
92 	zi->zone_size = le64_to_cpu(id->lbafe[lbaf].zsze);  in nvme_query_zone_info()
93 	if (!is_power_of_2(zi->zone_size)) {  in nvme_query_zone_info()
94 		dev_warn(ns->ctrl->device,  in nvme_query_zone_info()
96 			zi->zone_size, ns->head->ns_id);  in nvme_query_zone_info()
97 		status = -ENODEV;  in nvme_query_zone_info()
100 	zi->max_open_zones = le32_to_cpu(id->mor) + 1;  in nvme_query_zone_info()
101 	zi->max_active_zones = le32_to_cpu(id->mar) + 1;  in nvme_query_zone_info()
111 	lim->features |= BLK_FEAT_ZONED;  in nvme_update_zone_info()
112 	lim->max_open_zones = zi->max_open_zones;  in nvme_update_zone_info()
113 	lim->max_active_zones = zi->max_active_zones;  in nvme_update_zone_info()
114 	lim->max_zone_append_sectors = ns->ctrl->max_zone_append;  in nvme_update_zone_info()
115 	lim->chunk_sectors = ns->head->zsze =  in nvme_update_zone_info()
116 		nvme_lba_to_sect(ns->head, zi->zone_size);  in nvme_update_zone_info()
122 	struct request_queue *q = ns->disk->queue;  in nvme_zns_alloc_report_buffer()
130 			 get_capacity(ns->disk) >> ilog2(ns->head->zsze));  in nvme_zns_alloc_report_buffer()
149 static int nvme_zone_parse_entry(struct nvme_ctrl *ctrl,  in nvme_zone_parse_entry()  argument
157 	if ((entry->zt & 0xf) != NVME_ZONE_TYPE_SEQWRITE_REQ) {  in nvme_zone_parse_entry()
158 		dev_err(ctrl->device, "invalid zone type %#x\n",  in nvme_zone_parse_entry()
159 				entry->zt);  in nvme_zone_parse_entry()
160 		return -EINVAL;  in nvme_zone_parse_entry()
164 	zone.cond = entry->zs >> 4;  in nvme_zone_parse_entry()
165 	zone.len = head->zsze;  in nvme_zone_parse_entry()
166 	zone.capacity = nvme_lba_to_sect(head, le64_to_cpu(entry->zcap));  in nvme_zone_parse_entry()
167 	zone.start = nvme_lba_to_sect(head, le64_to_cpu(entry->zslba));  in nvme_zone_parse_entry()
171 		zone.wp = nvme_lba_to_sect(head, le64_to_cpu(entry->wp));  in nvme_zone_parse_entry()
185 	if (ns->head->ids.csi != NVME_CSI_ZNS)  in nvme_ns_report_zones()
186 		return -EINVAL;  in nvme_ns_report_zones()
190 		return -ENOMEM;  in nvme_ns_report_zones()
193 	c.zmr.nsid = cpu_to_le32(ns->head->ns_id);  in nvme_ns_report_zones()
199 	sector &= ~(ns->head->zsze - 1);  in nvme_ns_report_zones()
200 	while (zone_idx < nr_zones && sector < get_capacity(ns->disk)) {  in nvme_ns_report_zones()
203 		c.zmr.slba = cpu_to_le64(nvme_sect_to_lba(ns->head, sector));  in nvme_ns_report_zones()
204 		ret = nvme_submit_sync_cmd(ns->queue, &c, report, buflen);  in nvme_ns_report_zones()
207 				ret = -EIO;  in nvme_ns_report_zones()
211 		nz = min((unsigned int)le64_to_cpu(report->nr_zones), nr_zones);  in nvme_ns_report_zones()
216 			ret = nvme_zone_parse_entry(ns->ctrl, ns->head,  in nvme_ns_report_zones()
217 						    &report->entries[i],  in nvme_ns_report_zones()
224 		sector += ns->head->zsze * nz;  in nvme_ns_report_zones()
230 		ret = -EINVAL;  in nvme_ns_report_zones()
241 	c->zms.opcode = nvme_cmd_zone_mgmt_send;  in nvme_setup_zone_mgmt_send()
242 	c->zms.nsid = cpu_to_le32(ns->head->ns_id);  in nvme_setup_zone_mgmt_send()
243 	c->zms.slba = cpu_to_le64(nvme_sect_to_lba(ns->head, blk_rq_pos(req)));  in nvme_setup_zone_mgmt_send()
244 	c->zms.zsa = action;  in nvme_setup_zone_mgmt_send()
247 		c->zms.select_all = 1;  in nvme_setup_zone_mgmt_send()