John Garry | e8899fa | 2015-11-18 00:50:30 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2015 Linaro Ltd. |
| 3 | * Copyright (c) 2015 Hisilicon Limited. |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | */ |
| 11 | |
| 12 | #include "hisi_sas.h" |
| 13 | #define DRV_NAME "hisi_sas" |
| 14 | |
John Garry | 257efd1 | 2015-11-18 00:50:36 +0800 | [diff] [blame] | 15 | static void hisi_sas_slot_index_clear(struct hisi_hba *hisi_hba, int slot_idx) |
| 16 | { |
| 17 | void *bitmap = hisi_hba->slot_index_tags; |
| 18 | |
| 19 | clear_bit(slot_idx, bitmap); |
| 20 | } |
| 21 | |
| 22 | static void hisi_sas_slot_index_init(struct hisi_hba *hisi_hba) |
| 23 | { |
| 24 | int i; |
| 25 | |
| 26 | for (i = 0; i < hisi_hba->slot_index_count; ++i) |
| 27 | hisi_sas_slot_index_clear(hisi_hba, i); |
| 28 | } |
| 29 | |
John Garry | 976867e | 2015-11-18 00:50:42 +0800 | [diff] [blame^] | 30 | |
| 31 | static void hisi_sas_phy_init(struct hisi_hba *hisi_hba, int phy_no) |
| 32 | { |
| 33 | struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; |
| 34 | struct asd_sas_phy *sas_phy = &phy->sas_phy; |
| 35 | |
| 36 | phy->hisi_hba = hisi_hba; |
| 37 | phy->port = NULL; |
| 38 | init_timer(&phy->timer); |
| 39 | sas_phy->enabled = (phy_no < hisi_hba->n_phy) ? 1 : 0; |
| 40 | sas_phy->class = SAS; |
| 41 | sas_phy->iproto = SAS_PROTOCOL_ALL; |
| 42 | sas_phy->tproto = 0; |
| 43 | sas_phy->type = PHY_TYPE_PHYSICAL; |
| 44 | sas_phy->role = PHY_ROLE_INITIATOR; |
| 45 | sas_phy->oob_mode = OOB_NOT_CONNECTED; |
| 46 | sas_phy->linkrate = SAS_LINK_RATE_UNKNOWN; |
| 47 | sas_phy->id = phy_no; |
| 48 | sas_phy->sas_addr = &hisi_hba->sas_addr[0]; |
| 49 | sas_phy->frame_rcvd = &phy->frame_rcvd[0]; |
| 50 | sas_phy->ha = (struct sas_ha_struct *)hisi_hba->shost->hostdata; |
| 51 | sas_phy->lldd_phy = phy; |
| 52 | } |
| 53 | |
John Garry | e8899fa | 2015-11-18 00:50:30 +0800 | [diff] [blame] | 54 | static struct scsi_transport_template *hisi_sas_stt; |
| 55 | |
John Garry | 7eb7869 | 2015-11-18 00:50:31 +0800 | [diff] [blame] | 56 | static struct scsi_host_template hisi_sas_sht = { |
| 57 | .module = THIS_MODULE, |
| 58 | .name = DRV_NAME, |
| 59 | .queuecommand = sas_queuecommand, |
| 60 | .target_alloc = sas_target_alloc, |
| 61 | .slave_configure = sas_slave_configure, |
| 62 | .change_queue_depth = sas_change_queue_depth, |
| 63 | .bios_param = sas_bios_param, |
| 64 | .can_queue = 1, |
| 65 | .this_id = -1, |
| 66 | .sg_tablesize = SG_ALL, |
| 67 | .max_sectors = SCSI_DEFAULT_MAX_SECTORS, |
| 68 | .use_clustering = ENABLE_CLUSTERING, |
| 69 | .eh_device_reset_handler = sas_eh_device_reset_handler, |
| 70 | .eh_bus_reset_handler = sas_eh_bus_reset_handler, |
| 71 | .target_destroy = sas_target_destroy, |
| 72 | .ioctl = sas_ioctl, |
| 73 | }; |
| 74 | |
John Garry | e8899fa | 2015-11-18 00:50:30 +0800 | [diff] [blame] | 75 | static struct sas_domain_function_template hisi_sas_transport_ops = { |
| 76 | }; |
| 77 | |
John Garry | 6be6de1 | 2015-11-18 00:50:34 +0800 | [diff] [blame] | 78 | static int hisi_sas_alloc(struct hisi_hba *hisi_hba, struct Scsi_Host *shost) |
| 79 | { |
| 80 | int i, s; |
| 81 | struct platform_device *pdev = hisi_hba->pdev; |
| 82 | struct device *dev = &pdev->dev; |
| 83 | |
John Garry | 976867e | 2015-11-18 00:50:42 +0800 | [diff] [blame^] | 84 | for (i = 0; i < hisi_hba->n_phy; i++) { |
| 85 | hisi_sas_phy_init(hisi_hba, i); |
| 86 | hisi_hba->port[i].port_attached = 0; |
| 87 | hisi_hba->port[i].id = -1; |
| 88 | INIT_LIST_HEAD(&hisi_hba->port[i].list); |
| 89 | } |
| 90 | |
John Garry | af740db | 2015-11-18 00:50:41 +0800 | [diff] [blame] | 91 | for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) { |
| 92 | hisi_hba->devices[i].dev_type = SAS_PHY_UNUSED; |
| 93 | hisi_hba->devices[i].device_id = i; |
| 94 | hisi_hba->devices[i].dev_status = HISI_SAS_DEV_NORMAL; |
| 95 | } |
| 96 | |
John Garry | 6be6de1 | 2015-11-18 00:50:34 +0800 | [diff] [blame] | 97 | for (i = 0; i < hisi_hba->queue_count; i++) { |
John Garry | 9101a07 | 2015-11-18 00:50:37 +0800 | [diff] [blame] | 98 | struct hisi_sas_cq *cq = &hisi_hba->cq[i]; |
| 99 | |
| 100 | /* Completion queue structure */ |
| 101 | cq->id = i; |
| 102 | cq->hisi_hba = hisi_hba; |
| 103 | |
John Garry | 6be6de1 | 2015-11-18 00:50:34 +0800 | [diff] [blame] | 104 | /* Delivery queue */ |
| 105 | s = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS; |
| 106 | hisi_hba->cmd_hdr[i] = dma_alloc_coherent(dev, s, |
| 107 | &hisi_hba->cmd_hdr_dma[i], GFP_KERNEL); |
| 108 | if (!hisi_hba->cmd_hdr[i]) |
| 109 | goto err_out; |
| 110 | memset(hisi_hba->cmd_hdr[i], 0, s); |
| 111 | |
| 112 | /* Completion queue */ |
| 113 | s = hisi_hba->hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS; |
| 114 | hisi_hba->complete_hdr[i] = dma_alloc_coherent(dev, s, |
| 115 | &hisi_hba->complete_hdr_dma[i], GFP_KERNEL); |
| 116 | if (!hisi_hba->complete_hdr[i]) |
| 117 | goto err_out; |
| 118 | memset(hisi_hba->complete_hdr[i], 0, s); |
| 119 | } |
| 120 | |
| 121 | s = HISI_SAS_STATUS_BUF_SZ; |
| 122 | hisi_hba->status_buffer_pool = dma_pool_create("status_buffer", |
| 123 | dev, s, 16, 0); |
| 124 | if (!hisi_hba->status_buffer_pool) |
| 125 | goto err_out; |
| 126 | |
| 127 | s = HISI_SAS_COMMAND_TABLE_SZ; |
| 128 | hisi_hba->command_table_pool = dma_pool_create("command_table", |
| 129 | dev, s, 16, 0); |
| 130 | if (!hisi_hba->command_table_pool) |
| 131 | goto err_out; |
| 132 | |
| 133 | s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_itct); |
| 134 | hisi_hba->itct = dma_alloc_coherent(dev, s, &hisi_hba->itct_dma, |
| 135 | GFP_KERNEL); |
| 136 | if (!hisi_hba->itct) |
| 137 | goto err_out; |
| 138 | |
| 139 | memset(hisi_hba->itct, 0, s); |
| 140 | |
| 141 | hisi_hba->slot_info = devm_kcalloc(dev, HISI_SAS_COMMAND_ENTRIES, |
| 142 | sizeof(struct hisi_sas_slot), |
| 143 | GFP_KERNEL); |
| 144 | if (!hisi_hba->slot_info) |
| 145 | goto err_out; |
| 146 | |
| 147 | s = HISI_SAS_COMMAND_ENTRIES * sizeof(struct hisi_sas_iost); |
| 148 | hisi_hba->iost = dma_alloc_coherent(dev, s, &hisi_hba->iost_dma, |
| 149 | GFP_KERNEL); |
| 150 | if (!hisi_hba->iost) |
| 151 | goto err_out; |
| 152 | |
| 153 | memset(hisi_hba->iost, 0, s); |
| 154 | |
| 155 | s = HISI_SAS_COMMAND_ENTRIES * sizeof(struct hisi_sas_breakpoint); |
| 156 | hisi_hba->breakpoint = dma_alloc_coherent(dev, s, |
| 157 | &hisi_hba->breakpoint_dma, GFP_KERNEL); |
| 158 | if (!hisi_hba->breakpoint) |
| 159 | goto err_out; |
| 160 | |
| 161 | memset(hisi_hba->breakpoint, 0, s); |
| 162 | |
John Garry | 257efd1 | 2015-11-18 00:50:36 +0800 | [diff] [blame] | 163 | hisi_hba->slot_index_count = HISI_SAS_COMMAND_ENTRIES; |
| 164 | s = hisi_hba->slot_index_count / sizeof(unsigned long); |
| 165 | hisi_hba->slot_index_tags = devm_kzalloc(dev, s, GFP_KERNEL); |
| 166 | if (!hisi_hba->slot_index_tags) |
| 167 | goto err_out; |
| 168 | |
John Garry | 6be6de1 | 2015-11-18 00:50:34 +0800 | [diff] [blame] | 169 | hisi_hba->sge_page_pool = dma_pool_create("status_sge", dev, |
| 170 | sizeof(struct hisi_sas_sge_page), 16, 0); |
| 171 | if (!hisi_hba->sge_page_pool) |
| 172 | goto err_out; |
| 173 | |
| 174 | s = sizeof(struct hisi_sas_initial_fis) * HISI_SAS_MAX_PHYS; |
| 175 | hisi_hba->initial_fis = dma_alloc_coherent(dev, s, |
| 176 | &hisi_hba->initial_fis_dma, GFP_KERNEL); |
| 177 | if (!hisi_hba->initial_fis) |
| 178 | goto err_out; |
| 179 | memset(hisi_hba->initial_fis, 0, s); |
| 180 | |
| 181 | s = HISI_SAS_COMMAND_ENTRIES * sizeof(struct hisi_sas_breakpoint) * 2; |
| 182 | hisi_hba->sata_breakpoint = dma_alloc_coherent(dev, s, |
| 183 | &hisi_hba->sata_breakpoint_dma, GFP_KERNEL); |
| 184 | if (!hisi_hba->sata_breakpoint) |
| 185 | goto err_out; |
| 186 | memset(hisi_hba->sata_breakpoint, 0, s); |
| 187 | |
John Garry | 257efd1 | 2015-11-18 00:50:36 +0800 | [diff] [blame] | 188 | hisi_sas_slot_index_init(hisi_hba); |
| 189 | |
John Garry | 7e9080e | 2015-11-18 00:50:40 +0800 | [diff] [blame] | 190 | hisi_hba->wq = create_singlethread_workqueue(dev_name(dev)); |
| 191 | if (!hisi_hba->wq) { |
| 192 | dev_err(dev, "sas_alloc: failed to create workqueue\n"); |
| 193 | goto err_out; |
| 194 | } |
| 195 | |
John Garry | 6be6de1 | 2015-11-18 00:50:34 +0800 | [diff] [blame] | 196 | return 0; |
| 197 | err_out: |
| 198 | return -ENOMEM; |
| 199 | } |
| 200 | |
John Garry | 89d5332 | 2015-11-18 00:50:35 +0800 | [diff] [blame] | 201 | static void hisi_sas_free(struct hisi_hba *hisi_hba) |
| 202 | { |
| 203 | struct device *dev = &hisi_hba->pdev->dev; |
| 204 | int i, s; |
| 205 | |
| 206 | for (i = 0; i < hisi_hba->queue_count; i++) { |
| 207 | s = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS; |
| 208 | if (hisi_hba->cmd_hdr[i]) |
| 209 | dma_free_coherent(dev, s, |
| 210 | hisi_hba->cmd_hdr[i], |
| 211 | hisi_hba->cmd_hdr_dma[i]); |
| 212 | |
| 213 | s = hisi_hba->hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS; |
| 214 | if (hisi_hba->complete_hdr[i]) |
| 215 | dma_free_coherent(dev, s, |
| 216 | hisi_hba->complete_hdr[i], |
| 217 | hisi_hba->complete_hdr_dma[i]); |
| 218 | } |
| 219 | |
| 220 | dma_pool_destroy(hisi_hba->status_buffer_pool); |
| 221 | dma_pool_destroy(hisi_hba->command_table_pool); |
| 222 | dma_pool_destroy(hisi_hba->sge_page_pool); |
| 223 | |
| 224 | s = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_itct); |
| 225 | if (hisi_hba->itct) |
| 226 | dma_free_coherent(dev, s, |
| 227 | hisi_hba->itct, hisi_hba->itct_dma); |
| 228 | |
| 229 | s = HISI_SAS_COMMAND_ENTRIES * sizeof(struct hisi_sas_iost); |
| 230 | if (hisi_hba->iost) |
| 231 | dma_free_coherent(dev, s, |
| 232 | hisi_hba->iost, hisi_hba->iost_dma); |
| 233 | |
| 234 | s = HISI_SAS_COMMAND_ENTRIES * sizeof(struct hisi_sas_breakpoint); |
| 235 | if (hisi_hba->breakpoint) |
| 236 | dma_free_coherent(dev, s, |
| 237 | hisi_hba->breakpoint, |
| 238 | hisi_hba->breakpoint_dma); |
| 239 | |
| 240 | |
| 241 | s = sizeof(struct hisi_sas_initial_fis) * HISI_SAS_MAX_PHYS; |
| 242 | if (hisi_hba->initial_fis) |
| 243 | dma_free_coherent(dev, s, |
| 244 | hisi_hba->initial_fis, |
| 245 | hisi_hba->initial_fis_dma); |
| 246 | |
| 247 | s = HISI_SAS_COMMAND_ENTRIES * sizeof(struct hisi_sas_breakpoint) * 2; |
| 248 | if (hisi_hba->sata_breakpoint) |
| 249 | dma_free_coherent(dev, s, |
| 250 | hisi_hba->sata_breakpoint, |
| 251 | hisi_hba->sata_breakpoint_dma); |
| 252 | |
John Garry | 7e9080e | 2015-11-18 00:50:40 +0800 | [diff] [blame] | 253 | if (hisi_hba->wq) |
| 254 | destroy_workqueue(hisi_hba->wq); |
John Garry | 89d5332 | 2015-11-18 00:50:35 +0800 | [diff] [blame] | 255 | } |
John Garry | 6be6de1 | 2015-11-18 00:50:34 +0800 | [diff] [blame] | 256 | |
John Garry | 7eb7869 | 2015-11-18 00:50:31 +0800 | [diff] [blame] | 257 | static struct Scsi_Host *hisi_sas_shost_alloc(struct platform_device *pdev, |
| 258 | const struct hisi_sas_hw *hw) |
| 259 | { |
John Garry | e26b2f4 | 2015-11-18 00:50:32 +0800 | [diff] [blame] | 260 | struct resource *res; |
John Garry | 7eb7869 | 2015-11-18 00:50:31 +0800 | [diff] [blame] | 261 | struct Scsi_Host *shost; |
| 262 | struct hisi_hba *hisi_hba; |
| 263 | struct device *dev = &pdev->dev; |
John Garry | e26b2f4 | 2015-11-18 00:50:32 +0800 | [diff] [blame] | 264 | struct device_node *np = pdev->dev.of_node; |
| 265 | struct property *sas_addr_prop; |
| 266 | int num; |
John Garry | 7eb7869 | 2015-11-18 00:50:31 +0800 | [diff] [blame] | 267 | |
| 268 | shost = scsi_host_alloc(&hisi_sas_sht, sizeof(*hisi_hba)); |
| 269 | if (!shost) |
| 270 | goto err_out; |
| 271 | hisi_hba = shost_priv(shost); |
| 272 | |
| 273 | hisi_hba->hw = hw; |
| 274 | hisi_hba->pdev = pdev; |
| 275 | hisi_hba->shost = shost; |
| 276 | SHOST_TO_SAS_HA(shost) = &hisi_hba->sha; |
| 277 | |
John Garry | e26b2f4 | 2015-11-18 00:50:32 +0800 | [diff] [blame] | 278 | sas_addr_prop = of_find_property(np, "sas-addr", NULL); |
| 279 | if (!sas_addr_prop || (sas_addr_prop->length != SAS_ADDR_SIZE)) |
| 280 | goto err_out; |
| 281 | memcpy(hisi_hba->sas_addr, sas_addr_prop->value, SAS_ADDR_SIZE); |
| 282 | |
| 283 | if (of_property_read_u32(np, "ctrl-reset-reg", |
| 284 | &hisi_hba->ctrl_reset_reg)) |
| 285 | goto err_out; |
| 286 | |
| 287 | if (of_property_read_u32(np, "ctrl-reset-sts-reg", |
| 288 | &hisi_hba->ctrl_reset_sts_reg)) |
| 289 | goto err_out; |
| 290 | |
| 291 | if (of_property_read_u32(np, "ctrl-clock-ena-reg", |
| 292 | &hisi_hba->ctrl_clock_ena_reg)) |
| 293 | goto err_out; |
| 294 | |
| 295 | if (of_property_read_u32(np, "phy-count", &hisi_hba->n_phy)) |
| 296 | goto err_out; |
| 297 | |
| 298 | if (of_property_read_u32(np, "queue-count", &hisi_hba->queue_count)) |
| 299 | goto err_out; |
| 300 | |
| 301 | num = of_irq_count(np); |
| 302 | hisi_hba->int_names = devm_kcalloc(dev, num, |
| 303 | HISI_SAS_NAME_LEN, |
| 304 | GFP_KERNEL); |
| 305 | if (!hisi_hba->int_names) |
| 306 | goto err_out; |
| 307 | |
| 308 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| 309 | hisi_hba->regs = devm_ioremap_resource(dev, res); |
| 310 | if (IS_ERR(hisi_hba->regs)) |
| 311 | goto err_out; |
| 312 | |
| 313 | hisi_hba->ctrl = syscon_regmap_lookup_by_phandle( |
| 314 | np, "hisilicon,sas-syscon"); |
| 315 | if (IS_ERR(hisi_hba->ctrl)) |
| 316 | goto err_out; |
| 317 | |
John Garry | 89d5332 | 2015-11-18 00:50:35 +0800 | [diff] [blame] | 318 | if (hisi_sas_alloc(hisi_hba, shost)) { |
| 319 | hisi_sas_free(hisi_hba); |
John Garry | 6be6de1 | 2015-11-18 00:50:34 +0800 | [diff] [blame] | 320 | goto err_out; |
John Garry | 89d5332 | 2015-11-18 00:50:35 +0800 | [diff] [blame] | 321 | } |
John Garry | 6be6de1 | 2015-11-18 00:50:34 +0800 | [diff] [blame] | 322 | |
John Garry | 7eb7869 | 2015-11-18 00:50:31 +0800 | [diff] [blame] | 323 | return shost; |
| 324 | err_out: |
| 325 | dev_err(dev, "shost alloc failed\n"); |
| 326 | return NULL; |
| 327 | } |
| 328 | |
John Garry | 5d74242 | 2015-11-18 00:50:38 +0800 | [diff] [blame] | 329 | static void hisi_sas_init_add(struct hisi_hba *hisi_hba) |
| 330 | { |
| 331 | int i; |
| 332 | |
| 333 | for (i = 0; i < hisi_hba->n_phy; i++) |
| 334 | memcpy(&hisi_hba->phy[i].dev_sas_addr, |
| 335 | hisi_hba->sas_addr, |
| 336 | SAS_ADDR_SIZE); |
| 337 | } |
| 338 | |
John Garry | 7eb7869 | 2015-11-18 00:50:31 +0800 | [diff] [blame] | 339 | int hisi_sas_probe(struct platform_device *pdev, |
| 340 | const struct hisi_sas_hw *hw) |
| 341 | { |
| 342 | struct Scsi_Host *shost; |
| 343 | struct hisi_hba *hisi_hba; |
| 344 | struct device *dev = &pdev->dev; |
| 345 | struct asd_sas_phy **arr_phy; |
| 346 | struct asd_sas_port **arr_port; |
| 347 | struct sas_ha_struct *sha; |
| 348 | int rc, phy_nr, port_nr, i; |
| 349 | |
| 350 | shost = hisi_sas_shost_alloc(pdev, hw); |
| 351 | if (!shost) { |
| 352 | rc = -ENOMEM; |
| 353 | goto err_out_ha; |
| 354 | } |
| 355 | |
| 356 | sha = SHOST_TO_SAS_HA(shost); |
| 357 | hisi_hba = shost_priv(shost); |
| 358 | platform_set_drvdata(pdev, sha); |
John Garry | 50cb916 | 2015-11-18 00:50:39 +0800 | [diff] [blame] | 359 | |
| 360 | if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)) && |
| 361 | dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32))) { |
| 362 | dev_err(dev, "No usable DMA addressing method\n"); |
| 363 | rc = -EIO; |
| 364 | goto err_out_ha; |
| 365 | } |
| 366 | |
John Garry | 7eb7869 | 2015-11-18 00:50:31 +0800 | [diff] [blame] | 367 | phy_nr = port_nr = hisi_hba->n_phy; |
| 368 | |
| 369 | arr_phy = devm_kcalloc(dev, phy_nr, sizeof(void *), GFP_KERNEL); |
| 370 | arr_port = devm_kcalloc(dev, port_nr, sizeof(void *), GFP_KERNEL); |
| 371 | if (!arr_phy || !arr_port) |
| 372 | return -ENOMEM; |
| 373 | |
| 374 | sha->sas_phy = arr_phy; |
| 375 | sha->sas_port = arr_port; |
| 376 | sha->core.shost = shost; |
| 377 | sha->lldd_ha = hisi_hba; |
| 378 | |
| 379 | shost->transportt = hisi_sas_stt; |
| 380 | shost->max_id = HISI_SAS_MAX_DEVICES; |
| 381 | shost->max_lun = ~0; |
| 382 | shost->max_channel = 1; |
| 383 | shost->max_cmd_len = 16; |
| 384 | shost->sg_tablesize = min_t(u16, SG_ALL, HISI_SAS_SGE_PAGE_CNT); |
| 385 | shost->can_queue = HISI_SAS_COMMAND_ENTRIES; |
| 386 | shost->cmd_per_lun = HISI_SAS_COMMAND_ENTRIES; |
| 387 | |
| 388 | sha->sas_ha_name = DRV_NAME; |
| 389 | sha->dev = &hisi_hba->pdev->dev; |
| 390 | sha->lldd_module = THIS_MODULE; |
| 391 | sha->sas_addr = &hisi_hba->sas_addr[0]; |
| 392 | sha->num_phys = hisi_hba->n_phy; |
| 393 | sha->core.shost = hisi_hba->shost; |
| 394 | |
| 395 | for (i = 0; i < hisi_hba->n_phy; i++) { |
| 396 | sha->sas_phy[i] = &hisi_hba->phy[i].sas_phy; |
| 397 | sha->sas_port[i] = &hisi_hba->port[i].sas_port; |
| 398 | } |
| 399 | |
John Garry | 5d74242 | 2015-11-18 00:50:38 +0800 | [diff] [blame] | 400 | hisi_sas_init_add(hisi_hba); |
| 401 | |
John Garry | 7eb7869 | 2015-11-18 00:50:31 +0800 | [diff] [blame] | 402 | rc = scsi_add_host(shost, &pdev->dev); |
| 403 | if (rc) |
| 404 | goto err_out_ha; |
| 405 | |
| 406 | rc = sas_register_ha(sha); |
| 407 | if (rc) |
| 408 | goto err_out_register_ha; |
| 409 | |
| 410 | scsi_scan_host(shost); |
| 411 | |
| 412 | return 0; |
| 413 | |
| 414 | err_out_register_ha: |
| 415 | scsi_remove_host(shost); |
| 416 | err_out_ha: |
| 417 | kfree(shost); |
| 418 | return rc; |
| 419 | } |
| 420 | EXPORT_SYMBOL_GPL(hisi_sas_probe); |
| 421 | |
John Garry | 89d5332 | 2015-11-18 00:50:35 +0800 | [diff] [blame] | 422 | int hisi_sas_remove(struct platform_device *pdev) |
| 423 | { |
| 424 | struct sas_ha_struct *sha = platform_get_drvdata(pdev); |
| 425 | struct hisi_hba *hisi_hba = sha->lldd_ha; |
| 426 | |
| 427 | scsi_remove_host(sha->core.shost); |
| 428 | sas_unregister_ha(sha); |
| 429 | sas_remove_host(sha->core.shost); |
| 430 | |
| 431 | hisi_sas_free(hisi_hba); |
| 432 | return 0; |
| 433 | } |
| 434 | EXPORT_SYMBOL_GPL(hisi_sas_remove); |
| 435 | |
John Garry | e8899fa | 2015-11-18 00:50:30 +0800 | [diff] [blame] | 436 | static __init int hisi_sas_init(void) |
| 437 | { |
| 438 | pr_info("hisi_sas: driver version %s\n", DRV_VERSION); |
| 439 | |
| 440 | hisi_sas_stt = sas_domain_attach_transport(&hisi_sas_transport_ops); |
| 441 | if (!hisi_sas_stt) |
| 442 | return -ENOMEM; |
| 443 | |
| 444 | return 0; |
| 445 | } |
| 446 | |
| 447 | static __exit void hisi_sas_exit(void) |
| 448 | { |
| 449 | sas_release_transport(hisi_sas_stt); |
| 450 | } |
| 451 | |
| 452 | module_init(hisi_sas_init); |
| 453 | module_exit(hisi_sas_exit); |
| 454 | |
| 455 | MODULE_VERSION(DRV_VERSION); |
| 456 | MODULE_LICENSE("GPL"); |
| 457 | MODULE_AUTHOR("John Garry <john.garry@huawei.com>"); |
| 458 | MODULE_DESCRIPTION("HISILICON SAS controller driver"); |
| 459 | MODULE_ALIAS("platform:" DRV_NAME); |