struct zfcp_fsf_req *request, *tmp;
unsigned int i;
+ /* 0 is reserved as an invalid req_id */
+ if (req_id == 0)
+ return NULL;
+
i = req_id % REQUEST_LIST_SIZE;
list_for_each_entry_safe(request, tmp, &adapter->req_list[i], list)
return 0;
len = strlen(devstr) + 1;
- str = (char *) kmalloc(len, GFP_KERNEL);
+ str = kmalloc(len, GFP_KERNEL);
if (!str)
goto err_out;
memcpy(str, devstr, len);
return;
}
+static int calc_alignment(int size)
+{
+ int align = 1;
+
+ if (!size)
+ return 0;
+
+ while ((size - align) > 0)
+ align <<= 1;
+
+ return align;
+}
+
static int __init
zfcp_module_init(void)
{
+ int retval = -ENOMEM;
+ int size, align;
+
+ size = sizeof(struct zfcp_fsf_req_qtcb);
+ align = calc_alignment(size);
+ zfcp_data.fsf_req_qtcb_cache =
+ kmem_cache_create("zfcp_fsf", size, align, 0, NULL, NULL);
+ if (!zfcp_data.fsf_req_qtcb_cache)
+ goto out;
- int retval = 0;
+ size = sizeof(struct fsf_status_read_buffer);
+ align = calc_alignment(size);
+ zfcp_data.sr_buffer_cache =
+ kmem_cache_create("zfcp_sr", size, align, 0, NULL, NULL);
+ if (!zfcp_data.sr_buffer_cache)
+ goto out_sr_cache;
+
+ size = sizeof(struct zfcp_gid_pn_data);
+ align = calc_alignment(size);
+ zfcp_data.gid_pn_cache =
+ kmem_cache_create("zfcp_gid", size, align, 0, NULL, NULL);
+ if (!zfcp_data.gid_pn_cache)
+ goto out_gid_cache;
atomic_set(&zfcp_data.loglevel, loglevel);
/* initialize adapters to be removed list head */
INIT_LIST_HEAD(&zfcp_data.adapter_remove_lh);
- zfcp_transport_template = fc_attach_transport(&zfcp_transport_functions);
- if (!zfcp_transport_template)
- return -ENODEV;
+ zfcp_data.scsi_transport_template =
+ fc_attach_transport(&zfcp_transport_functions);
+ if (!zfcp_data.scsi_transport_template)
+ goto out_transport;
retval = misc_register(&zfcp_cfdc_misc);
if (retval != 0) {
ZFCP_LOG_INFO("registration of misc device "
"zfcp_cfdc failed\n");
- goto out;
+ goto out_misc;
}
ZFCP_LOG_TRACE("major/minor for zfcp_cfdc: %d/%d\n",
/* initialise configuration rw lock */
rwlock_init(&zfcp_data.config_lock);
- /* save address of data structure managing the driver module */
- zfcp_data.scsi_host_template.module = THIS_MODULE;
-
/* setup dynamic I/O */
retval = zfcp_ccw_register();
if (retval) {
out_ccw_register:
misc_deregister(&zfcp_cfdc_misc);
+ out_misc:
+ fc_release_transport(zfcp_data.scsi_transport_template);
+ out_transport:
+ kmem_cache_destroy(zfcp_data.gid_pn_cache);
+ out_gid_cache:
+ kmem_cache_destroy(zfcp_data.sr_buffer_cache);
+ out_sr_cache:
+ kmem_cache_destroy(zfcp_data.fsf_req_qtcb_cache);
out:
return retval;
}
zfcp_allocate_low_mem_buffers(struct zfcp_adapter *adapter)
{
adapter->pool.fsf_req_erp =
- mempool_create_kmalloc_pool(ZFCP_POOL_FSF_REQ_ERP_NR,
- sizeof(struct zfcp_fsf_req_pool_element));
+ mempool_create_slab_pool(ZFCP_POOL_FSF_REQ_ERP_NR,
+ zfcp_data.fsf_req_qtcb_cache);
if (!adapter->pool.fsf_req_erp)
return -ENOMEM;
adapter->pool.fsf_req_scsi =
- mempool_create_kmalloc_pool(ZFCP_POOL_FSF_REQ_SCSI_NR,
- sizeof(struct zfcp_fsf_req_pool_element));
+ mempool_create_slab_pool(ZFCP_POOL_FSF_REQ_SCSI_NR,
+ zfcp_data.fsf_req_qtcb_cache);
if (!adapter->pool.fsf_req_scsi)
return -ENOMEM;
adapter->pool.fsf_req_abort =
- mempool_create_kmalloc_pool(ZFCP_POOL_FSF_REQ_ABORT_NR,
- sizeof(struct zfcp_fsf_req_pool_element));
+ mempool_create_slab_pool(ZFCP_POOL_FSF_REQ_ABORT_NR,
+ zfcp_data.fsf_req_qtcb_cache);
if (!adapter->pool.fsf_req_abort)
return -ENOMEM;
return -ENOMEM;
adapter->pool.data_status_read =
- mempool_create_kmalloc_pool(ZFCP_POOL_STATUS_READ_NR,
- sizeof(struct fsf_status_read_buffer));
+ mempool_create_slab_pool(ZFCP_POOL_STATUS_READ_NR,
+ zfcp_data.sr_buffer_cache);
if (!adapter->pool.data_status_read)
return -ENOMEM;
adapter->pool.data_gid_pn =
- mempool_create_kmalloc_pool(ZFCP_POOL_DATA_GID_PN_NR,
- sizeof(struct zfcp_gid_pn_data));
+ mempool_create_slab_pool(ZFCP_POOL_DATA_GID_PN_NR,
+ zfcp_data.gid_pn_cache);
if (!adapter->pool.data_gid_pn)
return -ENOMEM;
/* initialize lock of associated request queue */
rwlock_init(&adapter->request_queue.queue_lock);
- /* intitialise SCSI ER timer */
- init_timer(&adapter->scsi_er_timer);
-
/* mark adapter unusable as long as sysfs registration is not complete */
atomic_set_mask(ZFCP_STATUS_COMMON_REMOVE, &adapter->status);
gid_pn->ct.handler = zfcp_ns_gid_pn_handler;
gid_pn->ct.handler_data = (unsigned long) gid_pn;
gid_pn->ct.timeout = ZFCP_NS_GID_PN_TIMEOUT;
- gid_pn->ct.timer = &erp_action->timer;
gid_pn->port = erp_action->port;
ret = zfcp_fsf_send_ct(&gid_pn->ct, adapter->pool.fsf_req_erp,