diff options
Diffstat (limited to 'drivers/scsi/ibmvscsi/ibmvscsi.c')
| -rw-r--r-- | drivers/scsi/ibmvscsi/ibmvscsi.c | 474 |
1 files changed, 354 insertions, 120 deletions
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c index c9aa7611e40..9928704e235 100644 --- a/drivers/scsi/ibmvscsi/ibmvscsi.c +++ b/drivers/scsi/ibmvscsi/ibmvscsi.c @@ -70,6 +70,7 @@ #include <linux/moduleparam.h> #include <linux/dma-mapping.h> #include <linux/delay.h> +#include <linux/of.h> #include <asm/firmware.h> #include <asm/vio.h> #include <asm/firmware.h> @@ -87,9 +88,15 @@ */ static int max_id = 64; static int max_channel = 3; -static int init_timeout = 5; +static int init_timeout = 300; +static int login_timeout = 60; +static int info_timeout = 30; +static int abort_timeout = 60; +static int reset_timeout = 60; static int max_requests = IBMVSCSI_MAX_REQUESTS_DEFAULT; static int max_events = IBMVSCSI_MAX_REQUESTS_DEFAULT + 2; +static int fast_fail = 1; +static int client_reserve = 1; static struct scsi_transport_template *ibmvscsi_transport_template; @@ -110,6 +117,10 @@ module_param_named(init_timeout, init_timeout, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(init_timeout, "Initialization timeout in seconds"); module_param_named(max_requests, max_requests, int, S_IRUGO); MODULE_PARM_DESC(max_requests, "Maximum requests for this adapter"); +module_param_named(fast_fail, fast_fail, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(fast_fail, "Enable fast fail. [Default=1]"); +module_param_named(client_reserve, client_reserve, int, S_IRUGO ); +MODULE_PARM_DESC(client_reserve, "Attempt client managed reserve/release"); /* ------------------------------------------------------------ * Routines for the event pool and event structs @@ -781,105 +792,53 @@ static int ibmvscsi_queuecommand(struct scsi_cmnd *cmnd, /* ------------------------------------------------------------ * Routines for driver initialization */ + /** - * adapter_info_rsp: - Handle response to MAD adapter info request - * @evt_struct: srp_event_struct with the response + * map_persist_bufs: - Pre-map persistent data for adapter logins + * @hostdata: ibmvscsi_host_data of host * - * Used as a "done" callback by when sending adapter_info. Gets called - * by ibmvscsi_handle_crq() -*/ -static void adapter_info_rsp(struct srp_event_struct *evt_struct) + * Map the capabilities and adapter info DMA buffers to avoid runtime failures. + * Return 1 on error, 0 on success. + */ +static int map_persist_bufs(struct ibmvscsi_host_data *hostdata) { - struct ibmvscsi_host_data *hostdata = evt_struct->hostdata; - dma_unmap_single(hostdata->dev, - evt_struct->iu.mad.adapter_info.buffer, - evt_struct->iu.mad.adapter_info.common.length, - DMA_BIDIRECTIONAL); - if (evt_struct->xfer_iu->mad.adapter_info.common.status) { - dev_err(hostdata->dev, "error %d getting adapter info\n", - evt_struct->xfer_iu->mad.adapter_info.common.status); - } else { - dev_info(hostdata->dev, "host srp version: %s, " - "host partition %s (%d), OS %d, max io %u\n", - hostdata->madapter_info.srp_version, - hostdata->madapter_info.partition_name, - hostdata->madapter_info.partition_number, - hostdata->madapter_info.os_type, - hostdata->madapter_info.port_max_txu[0]); - - if (hostdata->madapter_info.port_max_txu[0]) - hostdata->host->max_sectors = - hostdata->madapter_info.port_max_txu[0] >> 9; - - if (hostdata->madapter_info.os_type == 3 && - strcmp(hostdata->madapter_info.srp_version, "1.6a") <= 0) { - dev_err(hostdata->dev, "host (Ver. %s) doesn't support large transfers\n", - hostdata->madapter_info.srp_version); - dev_err(hostdata->dev, "limiting scatterlists to %d\n", - MAX_INDIRECT_BUFS); - hostdata->host->sg_tablesize = MAX_INDIRECT_BUFS; - } + hostdata->caps_addr = dma_map_single(hostdata->dev, &hostdata->caps, + sizeof(hostdata->caps), DMA_BIDIRECTIONAL); + + if (dma_mapping_error(hostdata->dev, hostdata->caps_addr)) { + dev_err(hostdata->dev, "Unable to map capabilities buffer!\n"); + return 1; } + + hostdata->adapter_info_addr = dma_map_single(hostdata->dev, + &hostdata->madapter_info, + sizeof(hostdata->madapter_info), + DMA_BIDIRECTIONAL); + if (dma_mapping_error(hostdata->dev, hostdata->adapter_info_addr)) { + dev_err(hostdata->dev, "Unable to map adapter info buffer!\n"); + dma_unmap_single(hostdata->dev, hostdata->caps_addr, + sizeof(hostdata->caps), DMA_BIDIRECTIONAL); + return 1; + } + + return 0; } /** - * send_mad_adapter_info: - Sends the mad adapter info request - * and stores the result so it can be retrieved with - * sysfs. We COULD consider causing a failure if the - * returned SRP version doesn't match ours. - * @hostdata: ibmvscsi_host_data of host - * - * Returns zero if successful. -*/ -static void send_mad_adapter_info(struct ibmvscsi_host_data *hostdata) + * unmap_persist_bufs: - Unmap persistent data needed for adapter logins + * @hostdata: ibmvscsi_host_data of host + * + * Unmap the capabilities and adapter info DMA buffers + */ +static void unmap_persist_bufs(struct ibmvscsi_host_data *hostdata) { - struct viosrp_adapter_info *req; - struct srp_event_struct *evt_struct; - unsigned long flags; - dma_addr_t addr; - - evt_struct = get_event_struct(&hostdata->pool); - if (!evt_struct) { - dev_err(hostdata->dev, - "couldn't allocate an event for ADAPTER_INFO_REQ!\n"); - return; - } - - init_event_struct(evt_struct, - adapter_info_rsp, - VIOSRP_MAD_FORMAT, - init_timeout); - - req = &evt_struct->iu.mad.adapter_info; - memset(req, 0x00, sizeof(*req)); - - req->common.type = VIOSRP_ADAPTER_INFO_TYPE; - req->common.length = sizeof(hostdata->madapter_info); - req->buffer = addr = dma_map_single(hostdata->dev, - &hostdata->madapter_info, - sizeof(hostdata->madapter_info), - DMA_BIDIRECTIONAL); + dma_unmap_single(hostdata->dev, hostdata->caps_addr, + sizeof(hostdata->caps), DMA_BIDIRECTIONAL); - if (dma_mapping_error(hostdata->dev, req->buffer)) { - if (!firmware_has_feature(FW_FEATURE_CMO)) - dev_err(hostdata->dev, - "Unable to map request_buffer for " - "adapter_info!\n"); - free_event_struct(&hostdata->pool, evt_struct); - return; - } - - spin_lock_irqsave(hostdata->host->host_lock, flags); - if (ibmvscsi_send_srp_event(evt_struct, hostdata, init_timeout * 2)) { - dev_err(hostdata->dev, "couldn't send ADAPTER_INFO_REQ!\n"); - dma_unmap_single(hostdata->dev, - addr, - sizeof(hostdata->madapter_info), - DMA_BIDIRECTIONAL); - } - spin_unlock_irqrestore(hostdata->host->host_lock, flags); -}; + dma_unmap_single(hostdata->dev, hostdata->adapter_info_addr, + sizeof(hostdata->madapter_info), DMA_BIDIRECTIONAL); +} /** * login_rsp: - Handle response to SRP login request @@ -909,9 +868,7 @@ static void login_rsp(struct srp_event_struct *evt_struct) } dev_info(hostdata->dev, "SRP_LOGIN succeeded\n"); - - if (evt_struct->xfer_iu->srp.login_rsp.req_lim_delta < 0) - dev_err(hostdata->dev, "Invalid request_limit.\n"); + hostdata->client_migrated = 0; /* Now we know what the real request-limit is. * This value is set rather than added to request_limit because @@ -922,15 +879,12 @@ static void login_rsp(struct srp_event_struct *evt_struct) /* If we had any pending I/Os, kick them */ scsi_unblock_requests(hostdata->host); - - send_mad_adapter_info(hostdata); - return; } /** * send_srp_login: - Sends the srp login * @hostdata: ibmvscsi_host_data of host - * + * * Returns zero if successful. */ static int send_srp_login(struct ibmvscsi_host_data *hostdata) @@ -939,22 +893,17 @@ static int send_srp_login(struct ibmvscsi_host_data *hostdata) unsigned long flags; struct srp_login_req *login; struct srp_event_struct *evt_struct = get_event_struct(&hostdata->pool); - if (!evt_struct) { - dev_err(hostdata->dev, "couldn't allocate an event for login req!\n"); - return FAILED; - } - init_event_struct(evt_struct, - login_rsp, - VIOSRP_SRP_FORMAT, - init_timeout); + BUG_ON(!evt_struct); + init_event_struct(evt_struct, login_rsp, + VIOSRP_SRP_FORMAT, login_timeout); login = &evt_struct->iu.srp.login_req; - memset(login, 0x00, sizeof(struct srp_login_req)); + memset(login, 0, sizeof(*login)); login->opcode = SRP_LOGIN_REQ; login->req_it_iu_len = sizeof(union srp_iu); login->req_buf_fmt = SRP_BUF_FORMAT_DIRECT | SRP_BUF_FORMAT_INDIRECT; - + spin_lock_irqsave(hostdata->host->host_lock, flags); /* Start out with a request limit of 0, since this is negotiated in * the login request we are just sending and login requests always @@ -962,13 +911,246 @@ static int send_srp_login(struct ibmvscsi_host_data *hostdata) */ atomic_set(&hostdata->request_limit, 0); - rc = ibmvscsi_send_srp_event(evt_struct, hostdata, init_timeout * 2); + rc = ibmvscsi_send_srp_event(evt_struct, hostdata, login_timeout * 2); spin_unlock_irqrestore(hostdata->host->host_lock, flags); dev_info(hostdata->dev, "sent SRP login\n"); return rc; }; /** + * capabilities_rsp: - Handle response to MAD adapter capabilities request + * @evt_struct: srp_event_struct with the response + * + * Used as a "done" callback by when sending adapter_info. + */ +static void capabilities_rsp(struct srp_event_struct *evt_struct) +{ + struct ibmvscsi_host_data *hostdata = evt_struct->hostdata; + + if (evt_struct->xfer_iu->mad.capabilities.common.status) { + dev_err(hostdata->dev, "error 0x%X getting capabilities info\n", + evt_struct->xfer_iu->mad.capabilities.common.status); + } else { + if (hostdata->caps.migration.common.server_support != SERVER_SUPPORTS_CAP) + dev_info(hostdata->dev, "Partition migration not supported\n"); + + if (client_reserve) { + if (hostdata->caps.reserve.common.server_support == + SERVER_SUPPORTS_CAP) + dev_info(hostdata->dev, "Client reserve enabled\n"); + else + dev_info(hostdata->dev, "Client reserve not supported\n"); + } + } + + send_srp_login(hostdata); +} + +/** + * send_mad_capabilities: - Sends the mad capabilities request + * and stores the result so it can be retrieved with + * @hostdata: ibmvscsi_host_data of host + */ +static void send_mad_capabilities(struct ibmvscsi_host_data *hostdata) +{ + struct viosrp_capabilities *req; + struct srp_event_struct *evt_struct; + unsigned long flags; + struct device_node *of_node = hostdata->dev->archdata.of_node; + const char *location; + + evt_struct = get_event_struct(&hostdata->pool); + BUG_ON(!evt_struct); + + init_event_struct(evt_struct, capabilities_rsp, + VIOSRP_MAD_FORMAT, info_timeout); + + req = &evt_struct->iu.mad.capabilities; + memset(req, 0, sizeof(*req)); + + hostdata->caps.flags = CAP_LIST_SUPPORTED; + if (hostdata->client_migrated) + hostdata->caps.flags |= CLIENT_MIGRATED; + + strncpy(hostdata->caps.name, dev_name(&hostdata->host->shost_gendev), + sizeof(hostdata->caps.name)); + hostdata->caps.name[sizeof(hostdata->caps.name) - 1] = '\0'; + + location = of_get_property(of_node, "ibm,loc-code", NULL); + location = location ? location : dev_name(hostdata->dev); + strncpy(hostdata->caps.loc, location, sizeof(hostdata->caps.loc)); + hostdata->caps.loc[sizeof(hostdata->caps.loc) - 1] = '\0'; + + req->common.type = VIOSRP_CAPABILITIES_TYPE; + req->buffer = hostdata->caps_addr; + + hostdata->caps.migration.common.cap_type = MIGRATION_CAPABILITIES; + hostdata->caps.migration.common.length = sizeof(hostdata->caps.migration); + hostdata->caps.migration.common.server_support = SERVER_SUPPORTS_CAP; + hostdata->caps.migration.ecl = 1; + + if (client_reserve) { + hostdata->caps.reserve.common.cap_type = RESERVATION_CAPABILITIES; + hostdata->caps.reserve.common.length = sizeof(hostdata->caps.reserve); + hostdata->caps.reserve.common.server_support = SERVER_SUPPORTS_CAP; + hostdata->caps.reserve.type = CLIENT_RESERVE_SCSI_2; + req->common.length = sizeof(hostdata->caps); + } else + req->common.length = sizeof(hostdata->caps) - sizeof(hostdata->caps.reserve); + + spin_lock_irqsave(hostdata->host->host_lock, flags); + if (ibmvscsi_send_srp_event(evt_struct, hostdata, info_timeout * 2)) + dev_err(hostdata->dev, "couldn't send CAPABILITIES_REQ!\n"); + spin_unlock_irqrestore(hostdata->host->host_lock, flags); +}; + +/** + * fast_fail_rsp: - Handle response to MAD enable fast fail + * @evt_struct: srp_event_struct with the response + * + * Used as a "done" callback by when sending enable fast fail. Gets called + * by ibmvscsi_handle_crq() + */ +static void fast_fail_rsp(struct srp_event_struct *evt_struct) +{ + struct ibmvscsi_host_data *hostdata = evt_struct->hostdata; + u8 status = evt_struct->xfer_iu->mad.fast_fail.common.status; + + if (status == VIOSRP_MAD_NOT_SUPPORTED) + dev_err(hostdata->dev, "fast_fail not supported in server\n"); + else if (status == VIOSRP_MAD_FAILED) + dev_err(hostdata->dev, "fast_fail request failed\n"); + else if (status != VIOSRP_MAD_SUCCESS) + dev_err(hostdata->dev, "error 0x%X enabling fast_fail\n", status); + + send_mad_capabilities(hostdata); +} + +/** + * init_host - Start host initialization + * @hostdata: ibmvscsi_host_data of host + * + * Returns zero if successful. + */ +static int enable_fast_fail(struct ibmvscsi_host_data *hostdata) +{ + int rc; + unsigned long flags; + struct viosrp_fast_fail *fast_fail_mad; + struct srp_event_struct *evt_struct; + + if (!fast_fail) { + send_mad_capabilities(hostdata); + return 0; + } + + evt_struct = get_event_struct(&hostdata->pool); + BUG_ON(!evt_struct); + + init_event_struct(evt_struct, fast_fail_rsp, VIOSRP_MAD_FORMAT, info_timeout); + + fast_fail_mad = &evt_struct->iu.mad.fast_fail; + memset(fast_fail_mad, 0, sizeof(*fast_fail_mad)); + fast_fail_mad->common.type = VIOSRP_ENABLE_FAST_FAIL; + fast_fail_mad->common.length = sizeof(*fast_fail_mad); + + spin_lock_irqsave(hostdata->host->host_lock, flags); + rc = ibmvscsi_send_srp_event(evt_struct, hostdata, info_timeout * 2); + spin_unlock_irqrestore(hostdata->host->host_lock, flags); + return rc; +} + +/** + * adapter_info_rsp: - Handle response to MAD adapter info request + * @evt_struct: srp_event_struct with the response + * + * Used as a "done" callback by when sending adapter_info. Gets called + * by ibmvscsi_handle_crq() +*/ +static void adapter_info_rsp(struct srp_event_struct *evt_struct) +{ + struct ibmvscsi_host_data *hostdata = evt_struct->hostdata; + + if (evt_struct->xfer_iu->mad.adapter_info.common.status) { + dev_err(hostdata->dev, "error %d getting adapter info\n", + evt_struct->xfer_iu->mad.adapter_info.common.status); + } else { + dev_info(hostdata->dev, "host srp version: %s, " + "host partition %s (%d), OS %d, max io %u\n", + hostdata->madapter_info.srp_version, + hostdata->madapter_info.partition_name, + hostdata->madapter_info.partition_number, + hostdata->madapter_info.os_type, + hostdata->madapter_info.port_max_txu[0]); + + if (hostdata->madapter_info.port_max_txu[0]) + hostdata->host->max_sectors = + hostdata->madapter_info.port_max_txu[0] >> 9; + + if (hostdata->madapter_info.os_type == 3 && + strcmp(hostdata->madapter_info.srp_version, "1.6a") <= 0) { + dev_err(hostdata->dev, "host (Ver. %s) doesn't support large transfers\n", + hostdata->madapter_info.srp_version); + dev_err(hostdata->dev, "limiting scatterlists to %d\n", + MAX_INDIRECT_BUFS); + hostdata->host->sg_tablesize = MAX_INDIRECT_BUFS; + } + + if (hostdata->madapter_info.os_type == 3) { + enable_fast_fail(hostdata); + return; + } + } + + send_srp_login(hostdata); +} + +/** + * send_mad_adapter_info: - Sends the mad adapter info request + * and stores the result so it can be retrieved with + * sysfs. We COULD consider causing a failure if the + * returned SRP version doesn't match ours. + * @hostdata: ibmvscsi_host_data of host + * + * Returns zero if successful. +*/ +static void send_mad_adapter_info(struct ibmvscsi_host_data *hostdata) +{ + struct viosrp_adapter_info *req; + struct srp_event_struct *evt_struct; + unsigned long flags; + + evt_struct = get_event_struct(&hostdata->pool); + BUG_ON(!evt_struct); + + init_event_struct(evt_struct, + adapter_info_rsp, + VIOSRP_MAD_FORMAT, + info_timeout); + + req = &evt_struct->iu.mad.adapter_info; + memset(req, 0x00, sizeof(*req)); + + req->common.type = VIOSRP_ADAPTER_INFO_TYPE; + req->common.length = sizeof(hostdata->madapter_info); + req->buffer = hostdata->adapter_info_addr; + + spin_lock_irqsave(hostdata->host->host_lock, flags); + if (ibmvscsi_send_srp_event(evt_struct, hostdata, info_timeout * 2)) + dev_err(hostdata->dev, "couldn't send ADAPTER_INFO_REQ!\n"); + spin_unlock_irqrestore(hostdata->host->host_lock, flags); +}; + +/** + * init_adapter: Start virtual adapter initialization sequence + * + */ +static void init_adapter(struct ibmvscsi_host_data *hostdata) +{ + send_mad_adapter_info(hostdata); +} + +/** * sync_completion: Signal that a synchronous command has completed * Note that after returning from this call, the evt_struct is freed. * the caller waiting on this completion shouldn't touch the evt_struct @@ -1029,7 +1211,7 @@ static int ibmvscsi_eh_abort_handler(struct scsi_cmnd *cmd) init_event_struct(evt, sync_completion, VIOSRP_SRP_FORMAT, - init_timeout); + abort_timeout); tsk_mgmt = &evt->iu.srp.tsk_mgmt; @@ -1043,7 +1225,7 @@ static int ibmvscsi_eh_abort_handler(struct scsi_cmnd *cmd) evt->sync_srp = &srp_rsp; init_completion(&evt->comp); - rsp_rc = ibmvscsi_send_srp_event(evt, hostdata, init_timeout * 2); + rsp_rc = ibmvscsi_send_srp_event(evt, hostdata, abort_timeout * 2); if (rsp_rc != SCSI_MLQUEUE_HOST_BUSY) break; @@ -1152,7 +1334,7 @@ static int ibmvscsi_eh_device_reset_handler(struct scsi_cmnd *cmd) init_event_struct(evt, sync_completion, VIOSRP_SRP_FORMAT, - init_timeout); + reset_timeout); tsk_mgmt = &evt->iu.srp.tsk_mgmt; @@ -1165,7 +1347,7 @@ static int ibmvscsi_eh_device_reset_handler(struct scsi_cmnd *cmd) evt->sync_srp = &srp_rsp; init_completion(&evt->comp); - rsp_rc = ibmvscsi_send_srp_event(evt, hostdata, init_timeout * 2); + rsp_rc = ibmvscsi_send_srp_event(evt, hostdata, reset_timeout * 2); if (rsp_rc != SCSI_MLQUEUE_HOST_BUSY) break; @@ -1281,7 +1463,7 @@ void ibmvscsi_handle_crq(struct viosrp_crq *crq, if ((rc = ibmvscsi_ops->send_crq(hostdata, 0xC002000000000000LL, 0)) == 0) { /* Now login */ - send_srp_login(hostdata); + init_adapter(hostdata); } else { dev_err(hostdata->dev, "Unable to send init rsp. rc=%ld\n", rc); } @@ -1291,7 +1473,7 @@ void ibmvscsi_handle_crq(struct viosrp_crq *crq, dev_info(hostdata->dev, "partner initialization complete\n"); /* Now login */ - send_srp_login(hostdata); + init_adapter(hostdata); break; default: dev_err(hostdata->dev, "unknown crq message type: %d\n", crq->format); @@ -1303,6 +1485,7 @@ void ibmvscsi_handle_crq(struct viosrp_crq *crq, if (crq->format == 0x06) { /* We need to re-setup the interpartition connection */ dev_info(hostdata->dev, "Re-enabling adapter!\n"); + hostdata->client_migrated = 1; purge_requests(hostdata, DID_REQUEUE); if ((ibmvscsi_ops->reenable_crq_queue(&hostdata->queue, hostdata)) || @@ -1397,7 +1580,7 @@ static int ibmvscsi_do_host_config(struct ibmvscsi_host_data *hostdata, init_event_struct(evt_struct, sync_completion, VIOSRP_MAD_FORMAT, - init_timeout); + info_timeout); host_config = &evt_struct->iu.mad.host_config; @@ -1419,7 +1602,7 @@ static int ibmvscsi_do_host_config(struct ibmvscsi_host_data *hostdata, init_completion(&evt_struct->comp); spin_lock_irqsave(hostdata->host->host_lock, flags); - rc = ibmvscsi_send_srp_event(evt_struct, hostdata, init_timeout * 2); + rc = ibmvscsi_send_srp_event(evt_struct, hostdata, info_timeout * 2); spin_unlock_irqrestore(hostdata->host->host_lock, flags); if (rc == 0) wait_for_completion(&evt_struct->comp); @@ -1444,7 +1627,7 @@ static int ibmvscsi_slave_configure(struct scsi_device *sdev) spin_lock_irqsave(shost->host_lock, lock_flags); if (sdev->type == TYPE_DISK) { sdev->allow_restart = 1; - blk_queue_rq_timeout(sdev->request_queue, 60 * HZ); + blk_queue_rq_timeout(sdev->request_queue, 120 * HZ); } scsi_adjust_queue_depth(sdev, 0, shost->cmd_per_lun); spin_unlock_irqrestore(shost->host_lock, lock_flags); @@ -1471,6 +1654,46 @@ static int ibmvscsi_change_queue_depth(struct scsi_device *sdev, int qdepth) /* ------------------------------------------------------------ * sysfs attributes */ +static ssize_t show_host_vhost_loc(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct ibmvscsi_host_data *hostdata = shost_priv(shost); + int len; + + len = snprintf(buf, sizeof(hostdata->caps.loc), "%s\n", + hostdata->caps.loc); + return len; +} + +static struct device_attribute ibmvscsi_host_vhost_loc = { + .attr = { + .name = "vhost_loc", + .mode = S_IRUGO, + }, + .show = show_host_vhost_loc, +}; + +static ssize_t show_host_vhost_name(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct ibmvscsi_host_data *hostdata = shost_priv(shost); + int len; + + len = snprintf(buf, sizeof(hostdata->caps.name), "%s\n", + hostdata->caps.name); + return len; +} + +static struct device_attribute ibmvscsi_host_vhost_name = { + .attr = { + .name = "vhost_name", + .mode = S_IRUGO, + }, + .show = show_host_vhost_name, +}; + static ssize_t show_host_srp_version(struct device *dev, struct device_attribute *attr, char *buf) { @@ -1594,6 +1817,8 @@ static struct device_attribute ibmvscsi_host_config = { }; static struct device_attribute *ibmvscsi_attrs[] = { + &ibmvscsi_host_vhost_loc, + &ibmvscsi_host_vhost_name, &ibmvscsi_host_srp_version, &ibmvscsi_host_partition_name, &ibmvscsi_host_partition_number, @@ -1657,7 +1882,7 @@ static int ibmvscsi_probe(struct vio_dev *vdev, const struct vio_device_id *id) unsigned long wait_switch = 0; int rc; - vdev->dev.driver_data = NULL; + dev_set_drvdata(&vdev->dev, NULL); host = scsi_host_alloc(&driver_template, sizeof(*hostdata)); if (!host) { @@ -1674,6 +1899,11 @@ static int ibmvscsi_probe(struct vio_dev *vdev, const struct vio_device_id *id) atomic_set(&hostdata->request_limit, -1); hostdata->host->max_sectors = IBMVSCSI_MAX_SECTORS_DEFAULT; + if (map_persist_bufs(hostdata)) { + dev_err(&vdev->dev, "couldn't map persistent buffers\n"); + goto persist_bufs_failed; + } + rc = ibmvscsi_ops->init_crq_queue(&hostdata->queue, hostdata, max_events); if (rc != 0 && rc != H_RESOURCE) { dev_err(&vdev->dev, "couldn't initialize crq. rc=%d\n", rc); @@ -1687,6 +1917,7 @@ static int ibmvscsi_probe(struct vio_dev *vdev, const struct vio_device_id *id) host->max_lun = 8; host->max_id = max_id; host->max_channel = max_channel; + host->max_cmd_len = 16; if (scsi_add_host(hostdata->host, hostdata->dev)) goto add_host_failed; @@ -1723,7 +1954,7 @@ static int ibmvscsi_probe(struct vio_dev *vdev, const struct vio_device_id *id) scsi_scan_host(host); } - vdev->dev.driver_data = hostdata; + dev_set_drvdata(&vdev->dev, hostdata); return 0; add_srp_port_failed: @@ -1733,6 +1964,8 @@ static int ibmvscsi_probe(struct vio_dev *vdev, const struct vio_device_id *id) init_pool_failed: ibmvscsi_ops->release_crq_queue(&hostdata->queue, hostdata, max_events); init_crq_failed: + unmap_persist_bufs(hostdata); + persist_bufs_failed: scsi_host_put(host); scsi_host_alloc_failed: return -1; @@ -1740,7 +1973,8 @@ static int ibmvscsi_probe(struct vio_dev *vdev, const struct vio_device_id *id) static int ibmvscsi_remove(struct vio_dev *vdev) { - struct ibmvscsi_host_data *hostdata = vdev->dev.driver_data; + struct ibmvscsi_host_data *hostdata = dev_get_drvdata(&vdev->dev); + unmap_persist_bufs(hostdata); release_event_pool(&hostdata->pool, hostdata); ibmvscsi_ops->release_crq_queue(&hostdata->queue, hostdata, max_events); |