2005-04-16 22:20:36 +00:00
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/*
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2008-06-10 16:20:58 +00:00
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* zfcp device driver
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2005-04-16 22:20:36 +00:00
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*
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2008-06-10 16:20:58 +00:00
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* Implementation of FSF commands.
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2005-04-16 22:20:36 +00:00
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*
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2009-03-02 12:09:08 +00:00
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* Copyright IBM Corporation 2002, 2009
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2005-04-16 22:20:36 +00:00
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*/
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2008-12-25 12:39:53 +00:00
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#define KMSG_COMPONENT "zfcp"
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#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
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2008-10-16 06:23:39 +00:00
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#include <linux/blktrace_api.h>
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2005-04-16 22:20:36 +00:00
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#include "zfcp_ext.h"
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2009-08-18 13:43:08 +00:00
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#include "zfcp_dbf.h"
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2005-04-16 22:20:36 +00:00
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2009-03-02 12:09:00 +00:00
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#define ZFCP_REQ_AUTO_CLEANUP 0x00000002
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2008-07-02 08:56:40 +00:00
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static void zfcp_fsf_request_timeout_handler(unsigned long data)
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{
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struct zfcp_adapter *adapter = (struct zfcp_adapter *) data;
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2009-03-02 12:09:04 +00:00
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zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED,
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"fsrth_1", NULL);
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2008-07-02 08:56:40 +00:00
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}
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static void zfcp_fsf_start_timer(struct zfcp_fsf_req *fsf_req,
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unsigned long timeout)
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{
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fsf_req->timer.function = zfcp_fsf_request_timeout_handler;
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fsf_req->timer.data = (unsigned long) fsf_req->adapter;
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fsf_req->timer.expires = jiffies + timeout;
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add_timer(&fsf_req->timer);
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}
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static void zfcp_fsf_start_erp_timer(struct zfcp_fsf_req *fsf_req)
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{
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BUG_ON(!fsf_req->erp_action);
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fsf_req->timer.function = zfcp_erp_timeout_handler;
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fsf_req->timer.data = (unsigned long) fsf_req->erp_action;
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fsf_req->timer.expires = jiffies + 30 * HZ;
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add_timer(&fsf_req->timer);
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}
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2005-04-16 22:20:36 +00:00
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/* association between FSF command and FSF QTCB type */
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static u32 fsf_qtcb_type[] = {
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[FSF_QTCB_FCP_CMND] = FSF_IO_COMMAND,
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[FSF_QTCB_ABORT_FCP_CMND] = FSF_SUPPORT_COMMAND,
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[FSF_QTCB_OPEN_PORT_WITH_DID] = FSF_SUPPORT_COMMAND,
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[FSF_QTCB_OPEN_LUN] = FSF_SUPPORT_COMMAND,
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[FSF_QTCB_CLOSE_LUN] = FSF_SUPPORT_COMMAND,
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[FSF_QTCB_CLOSE_PORT] = FSF_SUPPORT_COMMAND,
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[FSF_QTCB_CLOSE_PHYSICAL_PORT] = FSF_SUPPORT_COMMAND,
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[FSF_QTCB_SEND_ELS] = FSF_SUPPORT_COMMAND,
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[FSF_QTCB_SEND_GENERIC] = FSF_SUPPORT_COMMAND,
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[FSF_QTCB_EXCHANGE_CONFIG_DATA] = FSF_CONFIG_COMMAND,
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[FSF_QTCB_EXCHANGE_PORT_DATA] = FSF_PORT_COMMAND,
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[FSF_QTCB_DOWNLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND,
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[FSF_QTCB_UPLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND
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};
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2008-06-10 16:20:58 +00:00
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static void zfcp_act_eval_err(struct zfcp_adapter *adapter, u32 table)
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{
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2008-07-02 08:56:39 +00:00
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u16 subtable = table >> 16;
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2008-06-10 16:20:58 +00:00
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u16 rule = table & 0xffff;
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2008-10-01 10:42:15 +00:00
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const char *act_type[] = { "unknown", "OS", "WWPN", "DID", "LUN" };
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2008-06-10 16:20:58 +00:00
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2008-10-01 10:42:15 +00:00
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if (subtable && subtable < ARRAY_SIZE(act_type))
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2008-06-10 16:20:58 +00:00
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dev_warn(&adapter->ccw_device->dev,
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2008-10-01 10:42:15 +00:00
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"Access denied according to ACT rule type %s, "
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"rule %d\n", act_type[subtable], rule);
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2008-06-10 16:20:58 +00:00
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}
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static void zfcp_fsf_access_denied_port(struct zfcp_fsf_req *req,
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struct zfcp_port *port)
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{
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struct fsf_qtcb_header *header = &req->qtcb->header;
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dev_warn(&req->adapter->ccw_device->dev,
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2008-10-01 10:42:15 +00:00
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"Access denied to port 0x%016Lx\n",
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2008-10-01 10:42:18 +00:00
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(unsigned long long)port->wwpn);
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2008-06-10 16:20:58 +00:00
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zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]);
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zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]);
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2009-03-02 12:09:04 +00:00
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zfcp_erp_port_access_denied(port, "fspad_1", req);
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2008-06-10 16:20:58 +00:00
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req->status |= ZFCP_STATUS_FSFREQ_ERROR;
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}
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static void zfcp_fsf_access_denied_unit(struct zfcp_fsf_req *req,
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struct zfcp_unit *unit)
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{
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struct fsf_qtcb_header *header = &req->qtcb->header;
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dev_warn(&req->adapter->ccw_device->dev,
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2008-10-01 10:42:15 +00:00
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"Access denied to unit 0x%016Lx on port 0x%016Lx\n",
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2008-10-01 10:42:18 +00:00
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(unsigned long long)unit->fcp_lun,
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(unsigned long long)unit->port->wwpn);
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2008-06-10 16:20:58 +00:00
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zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]);
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zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]);
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2009-03-02 12:09:04 +00:00
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zfcp_erp_unit_access_denied(unit, "fsuad_1", req);
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2008-06-10 16:20:58 +00:00
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req->status |= ZFCP_STATUS_FSFREQ_ERROR;
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}
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static void zfcp_fsf_class_not_supp(struct zfcp_fsf_req *req)
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{
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2008-10-01 10:42:15 +00:00
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dev_err(&req->adapter->ccw_device->dev, "FCP device not "
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"operational because of an unsupported FC class\n");
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2009-03-02 12:09:04 +00:00
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zfcp_erp_adapter_shutdown(req->adapter, 0, "fscns_1", req);
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2008-06-10 16:20:58 +00:00
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req->status |= ZFCP_STATUS_FSFREQ_ERROR;
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}
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2008-07-02 08:56:39 +00:00
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/**
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* zfcp_fsf_req_free - free memory used by fsf request
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* @fsf_req: pointer to struct zfcp_fsf_req
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2005-04-16 22:20:36 +00:00
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*/
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2008-07-02 08:56:39 +00:00
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void zfcp_fsf_req_free(struct zfcp_fsf_req *req)
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2005-04-16 22:20:36 +00:00
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{
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2008-07-02 08:56:39 +00:00
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if (likely(req->pool)) {
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2009-08-18 13:43:15 +00:00
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if (likely(req->qtcb))
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mempool_free(req->qtcb, req->adapter->pool.qtcb_pool);
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2008-07-02 08:56:39 +00:00
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mempool_free(req, req->pool);
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2006-09-18 20:28:49 +00:00
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return;
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}
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2009-08-18 13:43:15 +00:00
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if (likely(req->qtcb))
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kmem_cache_free(zfcp_data.qtcb_cache, req->qtcb);
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kfree(req);
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2005-04-16 22:20:36 +00:00
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}
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2008-07-02 08:56:39 +00:00
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static void zfcp_fsf_status_read_port_closed(struct zfcp_fsf_req *req)
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2005-04-16 22:20:36 +00:00
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{
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2008-07-02 08:56:39 +00:00
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struct fsf_status_read_buffer *sr_buf = req->data;
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struct zfcp_adapter *adapter = req->adapter;
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struct zfcp_port *port;
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int d_id = sr_buf->d_id & ZFCP_DID_MASK;
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unsigned long flags;
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2005-04-16 22:20:36 +00:00
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2008-07-02 08:56:39 +00:00
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read_lock_irqsave(&zfcp_data.config_lock, flags);
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list_for_each_entry(port, &adapter->port_list_head, list)
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if (port->d_id == d_id) {
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read_unlock_irqrestore(&zfcp_data.config_lock, flags);
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2009-03-02 12:09:04 +00:00
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zfcp_erp_port_reopen(port, 0, "fssrpc1", req);
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2008-07-02 08:56:39 +00:00
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return;
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}
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read_unlock_irqrestore(&zfcp_data.config_lock, flags);
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2005-04-16 22:20:36 +00:00
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}
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2009-03-02 12:09:04 +00:00
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static void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req, char *id,
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2008-07-02 08:56:39 +00:00
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struct fsf_link_down_info *link_down)
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2005-09-13 19:51:16 +00:00
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{
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2008-07-02 08:56:39 +00:00
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struct zfcp_adapter *adapter = req->adapter;
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2009-04-17 13:08:15 +00:00
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unsigned long flags;
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2008-03-27 13:22:02 +00:00
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2008-07-02 08:56:39 +00:00
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if (atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED)
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2005-12-01 01:48:41 +00:00
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return;
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atomic_set_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status);
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2009-04-17 13:08:15 +00:00
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read_lock_irqsave(&zfcp_data.config_lock, flags);
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2009-03-02 12:09:08 +00:00
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zfcp_scsi_schedule_rports_block(adapter);
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2009-04-17 13:08:15 +00:00
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read_unlock_irqrestore(&zfcp_data.config_lock, flags);
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2005-12-01 01:48:41 +00:00
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2008-07-02 08:56:39 +00:00
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if (!link_down)
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2006-02-11 00:41:50 +00:00
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goto out;
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2005-12-01 01:48:41 +00:00
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2005-09-13 19:51:16 +00:00
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switch (link_down->error_code) {
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case FSF_PSQ_LINK_NO_LIGHT:
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2008-07-02 08:56:39 +00:00
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dev_warn(&req->adapter->ccw_device->dev,
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2008-10-01 10:42:15 +00:00
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"There is no light signal from the local "
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"fibre channel cable\n");
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2005-09-13 19:51:16 +00:00
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break;
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case FSF_PSQ_LINK_WRAP_PLUG:
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2008-07-02 08:56:39 +00:00
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dev_warn(&req->adapter->ccw_device->dev,
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2008-10-01 10:42:15 +00:00
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"There is a wrap plug instead of a fibre "
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"channel cable\n");
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2005-09-13 19:51:16 +00:00
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break;
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case FSF_PSQ_LINK_NO_FCP:
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2008-07-02 08:56:39 +00:00
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dev_warn(&req->adapter->ccw_device->dev,
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2008-10-01 10:42:15 +00:00
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"The adjacent fibre channel node does not "
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"support FCP\n");
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2005-09-13 19:51:16 +00:00
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break;
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case FSF_PSQ_LINK_FIRMWARE_UPDATE:
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2008-07-02 08:56:39 +00:00
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dev_warn(&req->adapter->ccw_device->dev,
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2008-10-01 10:42:15 +00:00
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"The FCP device is suspended because of a "
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"firmware update\n");
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2008-06-10 16:20:58 +00:00
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break;
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2005-09-13 19:51:16 +00:00
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case FSF_PSQ_LINK_INVALID_WWPN:
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2008-07-02 08:56:39 +00:00
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dev_warn(&req->adapter->ccw_device->dev,
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2008-10-01 10:42:15 +00:00
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"The FCP device detected a WWPN that is "
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"duplicate or not valid\n");
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2005-09-13 19:51:16 +00:00
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break;
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case FSF_PSQ_LINK_NO_NPIV_SUPPORT:
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2008-07-02 08:56:39 +00:00
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dev_warn(&req->adapter->ccw_device->dev,
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2008-10-01 10:42:15 +00:00
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"The fibre channel fabric does not support NPIV\n");
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2005-09-13 19:51:16 +00:00
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break;
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case FSF_PSQ_LINK_NO_FCP_RESOURCES:
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2008-07-02 08:56:39 +00:00
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dev_warn(&req->adapter->ccw_device->dev,
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2008-10-01 10:42:15 +00:00
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"The FCP adapter cannot support more NPIV ports\n");
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2005-09-13 19:51:16 +00:00
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break;
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case FSF_PSQ_LINK_NO_FABRIC_RESOURCES:
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2008-07-02 08:56:39 +00:00
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dev_warn(&req->adapter->ccw_device->dev,
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2008-10-01 10:42:15 +00:00
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"The adjacent switch cannot support "
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"more NPIV ports\n");
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2005-09-13 19:51:16 +00:00
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break;
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case FSF_PSQ_LINK_FABRIC_LOGIN_UNABLE:
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2008-07-02 08:56:39 +00:00
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dev_warn(&req->adapter->ccw_device->dev,
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2008-10-01 10:42:15 +00:00
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"The FCP adapter could not log in to the "
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"fibre channel fabric\n");
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2005-09-13 19:51:16 +00:00
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break;
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case FSF_PSQ_LINK_WWPN_ASSIGNMENT_CORRUPTED:
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2008-07-02 08:56:39 +00:00
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dev_warn(&req->adapter->ccw_device->dev,
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2008-10-01 10:42:15 +00:00
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"The WWPN assignment file on the FCP adapter "
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"has been damaged\n");
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2005-09-13 19:51:16 +00:00
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break;
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case FSF_PSQ_LINK_MODE_TABLE_CURRUPTED:
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2008-07-02 08:56:39 +00:00
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dev_warn(&req->adapter->ccw_device->dev,
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2008-10-01 10:42:15 +00:00
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"The mode table on the FCP adapter "
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"has been damaged\n");
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2005-09-13 19:51:16 +00:00
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break;
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case FSF_PSQ_LINK_NO_WWPN_ASSIGNMENT:
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2008-07-02 08:56:39 +00:00
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dev_warn(&req->adapter->ccw_device->dev,
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2008-10-01 10:42:15 +00:00
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"All NPIV ports on the FCP adapter have "
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"been assigned\n");
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2005-09-13 19:51:16 +00:00
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break;
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default:
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2008-07-02 08:56:39 +00:00
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dev_warn(&req->adapter->ccw_device->dev,
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2008-10-01 10:42:15 +00:00
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"The link between the FCP adapter and "
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"the FC fabric is down\n");
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2005-09-13 19:51:16 +00:00
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}
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2008-07-02 08:56:39 +00:00
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out:
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zfcp_erp_adapter_failed(adapter, id, req);
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2005-09-13 19:51:16 +00:00
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}
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2008-07-02 08:56:39 +00:00
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static void zfcp_fsf_status_read_link_down(struct zfcp_fsf_req *req)
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2005-04-16 22:20:36 +00:00
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{
|
2008-07-02 08:56:39 +00:00
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struct fsf_status_read_buffer *sr_buf = req->data;
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struct fsf_link_down_info *ldi =
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(struct fsf_link_down_info *) &sr_buf->payload;
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2005-04-16 22:20:36 +00:00
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2008-07-02 08:56:39 +00:00
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switch (sr_buf->status_subtype) {
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case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK:
|
2009-03-02 12:09:04 +00:00
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zfcp_fsf_link_down_info_eval(req, "fssrld1", ldi);
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2005-04-16 22:20:36 +00:00
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break;
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2008-07-02 08:56:39 +00:00
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case FSF_STATUS_READ_SUB_FDISC_FAILED:
|
2009-03-02 12:09:04 +00:00
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zfcp_fsf_link_down_info_eval(req, "fssrld2", ldi);
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2005-04-16 22:20:36 +00:00
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break;
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2008-07-02 08:56:39 +00:00
|
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case FSF_STATUS_READ_SUB_FIRMWARE_UPDATE:
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_fsf_link_down_info_eval(req, "fssrld3", NULL);
|
2008-07-02 08:56:39 +00:00
|
|
|
};
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
static void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req)
|
|
|
|
{
|
|
|
|
struct zfcp_adapter *adapter = req->adapter;
|
|
|
|
struct fsf_status_read_buffer *sr_buf = req->data;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) {
|
|
|
|
zfcp_hba_dbf_event_fsf_unsol("dism", adapter, sr_buf);
|
2009-08-18 13:43:15 +00:00
|
|
|
mempool_free(sr_buf, adapter->pool.status_read_data);
|
2008-07-02 08:56:39 +00:00
|
|
|
zfcp_fsf_req_free(req);
|
|
|
|
return;
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
zfcp_hba_dbf_event_fsf_unsol("read", adapter, sr_buf);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
switch (sr_buf->status_type) {
|
|
|
|
case FSF_STATUS_READ_PORT_CLOSED:
|
|
|
|
zfcp_fsf_status_read_port_closed(req);
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
2008-07-02 08:56:39 +00:00
|
|
|
case FSF_STATUS_READ_INCOMING_ELS:
|
|
|
|
zfcp_fc_incoming_els(req);
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
2008-07-02 08:56:39 +00:00
|
|
|
case FSF_STATUS_READ_SENSE_DATA_AVAIL:
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
2008-07-02 08:56:39 +00:00
|
|
|
case FSF_STATUS_READ_BIT_ERROR_THRESHOLD:
|
2008-10-01 10:42:15 +00:00
|
|
|
dev_warn(&adapter->ccw_device->dev,
|
|
|
|
"The error threshold for checksum statistics "
|
|
|
|
"has been exceeded\n");
|
2008-10-01 10:42:21 +00:00
|
|
|
zfcp_hba_dbf_event_berr(adapter, req);
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
2008-07-02 08:56:39 +00:00
|
|
|
case FSF_STATUS_READ_LINK_DOWN:
|
|
|
|
zfcp_fsf_status_read_link_down(req);
|
|
|
|
break;
|
|
|
|
case FSF_STATUS_READ_LINK_UP:
|
|
|
|
dev_info(&adapter->ccw_device->dev,
|
2008-10-01 10:42:15 +00:00
|
|
|
"The local link has been restored\n");
|
2008-07-02 08:56:39 +00:00
|
|
|
/* All ports should be marked as ready to run again */
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_modify_adapter_status(adapter, "fssrh_1", NULL,
|
2008-07-02 08:56:39 +00:00
|
|
|
ZFCP_STATUS_COMMON_RUNNING,
|
|
|
|
ZFCP_SET);
|
|
|
|
zfcp_erp_adapter_reopen(adapter,
|
|
|
|
ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED |
|
|
|
|
ZFCP_STATUS_COMMON_ERP_FAILED,
|
2009-03-02 12:09:04 +00:00
|
|
|
"fssrh_2", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
break;
|
|
|
|
case FSF_STATUS_READ_NOTIFICATION_LOST:
|
|
|
|
if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_ACT_UPDATED)
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_adapter_access_changed(adapter, "fssrh_3",
|
|
|
|
req);
|
2008-07-02 08:56:39 +00:00
|
|
|
if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_INCOMING_ELS)
|
|
|
|
schedule_work(&adapter->scan_work);
|
|
|
|
break;
|
|
|
|
case FSF_STATUS_READ_CFDC_UPDATED:
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_adapter_access_changed(adapter, "fssrh_4", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
break;
|
|
|
|
case FSF_STATUS_READ_FEATURE_UPDATE_ALERT:
|
|
|
|
adapter->adapter_features = sr_buf->payload.word[0];
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2009-08-18 13:43:15 +00:00
|
|
|
mempool_free(sr_buf, adapter->pool.status_read_data);
|
2008-07-02 08:56:39 +00:00
|
|
|
zfcp_fsf_req_free(req);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
atomic_inc(&adapter->stat_miss);
|
2008-10-01 10:42:22 +00:00
|
|
|
queue_work(zfcp_data.work_queue, &adapter->stat_work);
|
2008-07-02 08:56:39 +00:00
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
static void zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *req)
|
|
|
|
{
|
|
|
|
switch (req->qtcb->header.fsf_status_qual.word[0]) {
|
|
|
|
case FSF_SQ_FCP_RSP_AVAILABLE:
|
|
|
|
case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE:
|
|
|
|
case FSF_SQ_NO_RETRY_POSSIBLE:
|
|
|
|
case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED:
|
|
|
|
return;
|
|
|
|
case FSF_SQ_COMMAND_ABORTED:
|
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ABORTED;
|
|
|
|
break;
|
|
|
|
case FSF_SQ_NO_RECOM:
|
|
|
|
dev_err(&req->adapter->ccw_device->dev,
|
2008-10-01 10:42:15 +00:00
|
|
|
"The FCP adapter reported a problem "
|
|
|
|
"that cannot be recovered\n");
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfsqe1", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
/* all non-return stats set FSFREQ_ERROR*/
|
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
static void zfcp_fsf_fsfstatus_eval(struct zfcp_fsf_req *req)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-07-02 08:56:39 +00:00
|
|
|
if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR))
|
|
|
|
return;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
switch (req->qtcb->header.fsf_status) {
|
|
|
|
case FSF_UNKNOWN_COMMAND:
|
|
|
|
dev_err(&req->adapter->ccw_device->dev,
|
2008-10-01 10:42:15 +00:00
|
|
|
"The FCP adapter does not recognize the command 0x%x\n",
|
2008-07-02 08:56:39 +00:00
|
|
|
req->qtcb->header.fsf_command);
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfse_1", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
|
|
|
break;
|
|
|
|
case FSF_ADAPTER_STATUS_AVAILABLE:
|
|
|
|
zfcp_fsf_fsfstatus_qual_eval(req);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
static void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req)
|
|
|
|
{
|
|
|
|
struct zfcp_adapter *adapter = req->adapter;
|
|
|
|
struct fsf_qtcb *qtcb = req->qtcb;
|
|
|
|
union fsf_prot_status_qual *psq = &qtcb->prefix.prot_status_qual;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
zfcp_hba_dbf_event_fsf_response(req);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) {
|
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR |
|
|
|
|
ZFCP_STATUS_FSFREQ_RETRY; /* only for SCSI cmnds. */
|
|
|
|
return;
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
switch (qtcb->prefix.prot_status) {
|
|
|
|
case FSF_PROT_GOOD:
|
|
|
|
case FSF_PROT_FSF_STATUS_PRESENTED:
|
|
|
|
return;
|
|
|
|
case FSF_PROT_QTCB_VERSION_ERROR:
|
|
|
|
dev_err(&adapter->ccw_device->dev,
|
2008-10-01 10:42:15 +00:00
|
|
|
"QTCB version 0x%x not supported by FCP adapter "
|
|
|
|
"(0x%x to 0x%x)\n", FSF_QTCB_CURRENT_VERSION,
|
|
|
|
psq->word[0], psq->word[1]);
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_adapter_shutdown(adapter, 0, "fspse_1", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
break;
|
|
|
|
case FSF_PROT_ERROR_STATE:
|
|
|
|
case FSF_PROT_SEQ_NUMB_ERROR:
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_adapter_reopen(adapter, 0, "fspse_2", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_RETRY;
|
|
|
|
break;
|
|
|
|
case FSF_PROT_UNSUPP_QTCB_TYPE:
|
|
|
|
dev_err(&adapter->ccw_device->dev,
|
2008-10-01 10:42:15 +00:00
|
|
|
"The QTCB type is not supported by the FCP adapter\n");
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_adapter_shutdown(adapter, 0, "fspse_3", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
break;
|
|
|
|
case FSF_PROT_HOST_CONNECTION_INITIALIZING:
|
|
|
|
atomic_set_mask(ZFCP_STATUS_ADAPTER_HOST_CON_INIT,
|
|
|
|
&adapter->status);
|
|
|
|
break;
|
|
|
|
case FSF_PROT_DUPLICATE_REQUEST_ID:
|
|
|
|
dev_err(&adapter->ccw_device->dev,
|
2008-10-01 10:42:15 +00:00
|
|
|
"0x%Lx is an ambiguous request identifier\n",
|
2008-07-02 08:56:39 +00:00
|
|
|
(unsigned long long)qtcb->bottom.support.req_handle);
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_adapter_shutdown(adapter, 0, "fspse_4", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
break;
|
|
|
|
case FSF_PROT_LINK_DOWN:
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_fsf_link_down_info_eval(req, "fspse_5",
|
|
|
|
&psq->link_down_info);
|
2008-07-02 08:56:39 +00:00
|
|
|
/* FIXME: reopening adapter now? better wait for link up */
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_adapter_reopen(adapter, 0, "fspse_6", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
break;
|
|
|
|
case FSF_PROT_REEST_QUEUE:
|
|
|
|
/* All ports should be marked as ready to run again */
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_modify_adapter_status(adapter, "fspse_7", NULL,
|
2008-07-02 08:56:39 +00:00
|
|
|
ZFCP_STATUS_COMMON_RUNNING,
|
|
|
|
ZFCP_SET);
|
|
|
|
zfcp_erp_adapter_reopen(adapter,
|
|
|
|
ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED |
|
2009-03-02 12:09:04 +00:00
|
|
|
ZFCP_STATUS_COMMON_ERP_FAILED,
|
|
|
|
"fspse_8", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
dev_err(&adapter->ccw_device->dev,
|
2008-10-01 10:42:15 +00:00
|
|
|
"0x%x is not a valid transfer protocol status\n",
|
2008-07-02 08:56:39 +00:00
|
|
|
qtcb->prefix.prot_status);
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_adapter_shutdown(adapter, 0, "fspse_9", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
}
|
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
/**
|
|
|
|
* zfcp_fsf_req_complete - process completion of a FSF request
|
|
|
|
* @fsf_req: The FSF request that has been completed.
|
|
|
|
*
|
|
|
|
* When a request has been completed either from the FCP adapter,
|
|
|
|
* or it has been dismissed due to a queue shutdown, this function
|
|
|
|
* is called to process the completion status and trigger further
|
|
|
|
* events related to the FSF request.
|
|
|
|
*/
|
2009-08-18 13:43:13 +00:00
|
|
|
static void zfcp_fsf_req_complete(struct zfcp_fsf_req *req)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-07-02 08:56:39 +00:00
|
|
|
if (unlikely(req->fsf_command == FSF_QTCB_UNSOLICITED_STATUS)) {
|
|
|
|
zfcp_fsf_status_read_handler(req);
|
|
|
|
return;
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
del_timer(&req->timer);
|
|
|
|
zfcp_fsf_protstatus_eval(req);
|
|
|
|
zfcp_fsf_fsfstatus_eval(req);
|
|
|
|
req->handler(req);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (req->erp_action)
|
2008-07-02 08:56:40 +00:00
|
|
|
zfcp_erp_notify(req->erp_action, 0);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (likely(req->status & ZFCP_STATUS_FSFREQ_CLEANUP))
|
|
|
|
zfcp_fsf_req_free(req);
|
|
|
|
else
|
2009-08-18 13:43:14 +00:00
|
|
|
complete(&req->completion);
|
2008-07-02 08:56:39 +00:00
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2009-08-18 13:43:13 +00:00
|
|
|
/**
|
|
|
|
* zfcp_fsf_req_dismiss_all - dismiss all fsf requests
|
|
|
|
* @adapter: pointer to struct zfcp_adapter
|
|
|
|
*
|
|
|
|
* Never ever call this without shutting down the adapter first.
|
|
|
|
* Otherwise the adapter would continue using and corrupting s390 storage.
|
|
|
|
* Included BUG_ON() call to ensure this is done.
|
|
|
|
* ERP is supposed to be the only user of this function.
|
|
|
|
*/
|
|
|
|
void zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter)
|
|
|
|
{
|
|
|
|
struct zfcp_fsf_req *req, *tmp;
|
|
|
|
unsigned long flags;
|
|
|
|
LIST_HEAD(remove_queue);
|
|
|
|
unsigned int i;
|
|
|
|
|
|
|
|
BUG_ON(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP);
|
|
|
|
spin_lock_irqsave(&adapter->req_list_lock, flags);
|
|
|
|
for (i = 0; i < REQUEST_LIST_SIZE; i++)
|
|
|
|
list_splice_init(&adapter->req_list[i], &remove_queue);
|
|
|
|
spin_unlock_irqrestore(&adapter->req_list_lock, flags);
|
|
|
|
|
|
|
|
list_for_each_entry_safe(req, tmp, &remove_queue, list) {
|
|
|
|
list_del(&req->list);
|
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_DISMISSED;
|
|
|
|
zfcp_fsf_req_complete(req);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
static int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req)
|
|
|
|
{
|
|
|
|
struct fsf_qtcb_bottom_config *bottom;
|
|
|
|
struct zfcp_adapter *adapter = req->adapter;
|
|
|
|
struct Scsi_Host *shost = adapter->scsi_host;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
bottom = &req->qtcb->bottom.config;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (req->data)
|
|
|
|
memcpy(req->data, bottom, sizeof(*bottom));
|
|
|
|
|
|
|
|
fc_host_node_name(shost) = bottom->nport_serv_param.wwnn;
|
|
|
|
fc_host_port_name(shost) = bottom->nport_serv_param.wwpn;
|
|
|
|
fc_host_port_id(shost) = bottom->s_id & ZFCP_DID_MASK;
|
|
|
|
fc_host_speed(shost) = bottom->fc_link_speed;
|
|
|
|
fc_host_supported_classes(shost) = FC_COS_CLASS2 | FC_COS_CLASS3;
|
|
|
|
|
|
|
|
adapter->hydra_version = bottom->adapter_type;
|
|
|
|
adapter->timer_ticks = bottom->timer_interval;
|
|
|
|
|
|
|
|
if (fc_host_permanent_port_name(shost) == -1)
|
|
|
|
fc_host_permanent_port_name(shost) = fc_host_port_name(shost);
|
|
|
|
|
|
|
|
switch (bottom->fc_topology) {
|
|
|
|
case FSF_TOPO_P2P:
|
|
|
|
adapter->peer_d_id = bottom->peer_d_id & ZFCP_DID_MASK;
|
|
|
|
adapter->peer_wwpn = bottom->plogi_payload.wwpn;
|
|
|
|
adapter->peer_wwnn = bottom->plogi_payload.wwnn;
|
|
|
|
fc_host_port_type(shost) = FC_PORTTYPE_PTP;
|
|
|
|
break;
|
|
|
|
case FSF_TOPO_FABRIC:
|
|
|
|
fc_host_port_type(shost) = FC_PORTTYPE_NPORT;
|
|
|
|
break;
|
|
|
|
case FSF_TOPO_AL:
|
|
|
|
fc_host_port_type(shost) = FC_PORTTYPE_NLPORT;
|
2009-05-15 11:18:18 +00:00
|
|
|
/* fall through */
|
2008-07-02 08:56:39 +00:00
|
|
|
default:
|
|
|
|
dev_err(&adapter->ccw_device->dev,
|
2008-10-01 10:42:15 +00:00
|
|
|
"Unknown or unsupported arbitrated loop "
|
|
|
|
"fibre channel topology detected\n");
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_adapter_shutdown(adapter, 0, "fsece_1", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
return -EIO;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
2008-07-02 08:56:39 +00:00
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
static void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req)
|
2008-06-10 16:20:58 +00:00
|
|
|
{
|
|
|
|
struct zfcp_adapter *adapter = req->adapter;
|
2008-07-02 08:56:39 +00:00
|
|
|
struct fsf_qtcb *qtcb = req->qtcb;
|
|
|
|
struct fsf_qtcb_bottom_config *bottom = &qtcb->bottom.config;
|
|
|
|
struct Scsi_Host *shost = adapter->scsi_host;
|
2008-06-10 16:20:58 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
|
|
|
|
return;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
adapter->fsf_lic_version = bottom->lic_version;
|
|
|
|
adapter->adapter_features = bottom->adapter_features;
|
|
|
|
adapter->connection_features = bottom->connection_features;
|
|
|
|
adapter->peer_wwpn = 0;
|
|
|
|
adapter->peer_wwnn = 0;
|
|
|
|
adapter->peer_d_id = 0;
|
2005-09-13 19:50:38 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
switch (qtcb->header.fsf_status) {
|
|
|
|
case FSF_GOOD:
|
|
|
|
if (zfcp_fsf_exchange_config_evaluate(req))
|
|
|
|
return;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (bottom->max_qtcb_size < sizeof(struct fsf_qtcb)) {
|
|
|
|
dev_err(&adapter->ccw_device->dev,
|
2008-10-01 10:42:15 +00:00
|
|
|
"FCP adapter maximum QTCB size (%d bytes) "
|
|
|
|
"is too small\n",
|
|
|
|
bottom->max_qtcb_size);
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh1", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK,
|
|
|
|
&adapter->status);
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
2008-07-02 08:56:39 +00:00
|
|
|
case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE:
|
|
|
|
fc_host_node_name(shost) = 0;
|
|
|
|
fc_host_port_name(shost) = 0;
|
|
|
|
fc_host_port_id(shost) = 0;
|
|
|
|
fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
|
|
|
|
fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN;
|
|
|
|
adapter->hydra_version = 0;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK,
|
|
|
|
&adapter->status);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_fsf_link_down_info_eval(req, "fsecdh2",
|
2008-07-02 08:56:39 +00:00
|
|
|
&qtcb->header.fsf_status_qual.link_down_info);
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
2008-07-02 08:56:39 +00:00
|
|
|
default:
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh3", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
return;
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT) {
|
|
|
|
adapter->hardware_version = bottom->hardware_version;
|
|
|
|
memcpy(fc_host_serial_number(shost), bottom->serial_number,
|
|
|
|
min(FC_SERIAL_NUMBER_SIZE, 17));
|
|
|
|
EBCASC(fc_host_serial_number(shost),
|
|
|
|
min(FC_SERIAL_NUMBER_SIZE, 17));
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (FSF_QTCB_CURRENT_VERSION < bottom->low_qtcb_version) {
|
|
|
|
dev_err(&adapter->ccw_device->dev,
|
2008-10-01 10:42:15 +00:00
|
|
|
"The FCP adapter only supports newer "
|
|
|
|
"control block versions\n");
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh4", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
if (FSF_QTCB_CURRENT_VERSION > bottom->high_qtcb_version) {
|
|
|
|
dev_err(&adapter->ccw_device->dev,
|
2008-10-01 10:42:15 +00:00
|
|
|
"The FCP adapter only supports older "
|
|
|
|
"control block versions\n");
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh5", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
}
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
static void zfcp_fsf_exchange_port_evaluate(struct zfcp_fsf_req *req)
|
|
|
|
{
|
|
|
|
struct zfcp_adapter *adapter = req->adapter;
|
|
|
|
struct fsf_qtcb_bottom_port *bottom = &req->qtcb->bottom.port;
|
|
|
|
struct Scsi_Host *shost = adapter->scsi_host;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (req->data)
|
|
|
|
memcpy(req->data, bottom, sizeof(*bottom));
|
2006-01-05 08:56:47 +00:00
|
|
|
|
2009-03-02 12:09:06 +00:00
|
|
|
if (adapter->connection_features & FSF_FEATURE_NPIV_MODE) {
|
2008-07-02 08:56:39 +00:00
|
|
|
fc_host_permanent_port_name(shost) = bottom->wwpn;
|
2009-03-02 12:09:06 +00:00
|
|
|
fc_host_port_type(shost) = FC_PORTTYPE_NPIV;
|
|
|
|
} else
|
2008-07-02 08:56:39 +00:00
|
|
|
fc_host_permanent_port_name(shost) = fc_host_port_name(shost);
|
|
|
|
fc_host_maxframe_size(shost) = bottom->maximum_frame_size;
|
|
|
|
fc_host_supported_speeds(shost) = bottom->supported_speed;
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
static void zfcp_fsf_exchange_port_data_handler(struct zfcp_fsf_req *req)
|
|
|
|
{
|
|
|
|
struct fsf_qtcb *qtcb = req->qtcb;
|
|
|
|
|
|
|
|
if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
|
|
|
|
return;
|
|
|
|
|
|
|
|
switch (qtcb->header.fsf_status) {
|
|
|
|
case FSF_GOOD:
|
|
|
|
zfcp_fsf_exchange_port_evaluate(req);
|
|
|
|
break;
|
|
|
|
case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE:
|
|
|
|
zfcp_fsf_exchange_port_evaluate(req);
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_fsf_link_down_info_eval(req, "fsepdh1",
|
2008-07-02 08:56:39 +00:00
|
|
|
&qtcb->header.fsf_status_qual.link_down_info);
|
2005-09-13 19:51:16 +00:00
|
|
|
break;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
2008-07-02 08:56:39 +00:00
|
|
|
}
|
2008-05-19 10:17:37 +00:00
|
|
|
|
2009-04-17 13:08:12 +00:00
|
|
|
static int zfcp_fsf_sbal_check(struct zfcp_adapter *adapter)
|
2008-07-02 08:56:39 +00:00
|
|
|
{
|
2008-12-19 15:56:54 +00:00
|
|
|
struct zfcp_qdio_queue *req_q = &adapter->req_q;
|
2008-07-02 08:56:39 +00:00
|
|
|
|
2009-04-17 13:08:12 +00:00
|
|
|
spin_lock_bh(&adapter->req_q_lock);
|
|
|
|
if (atomic_read(&req_q->count))
|
|
|
|
return 1;
|
|
|
|
spin_unlock_bh(&adapter->req_q_lock);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int zfcp_fsf_req_sbal_get(struct zfcp_adapter *adapter)
|
|
|
|
{
|
|
|
|
long ret;
|
2008-12-19 15:56:54 +00:00
|
|
|
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_unlock_bh(&adapter->req_q_lock);
|
2008-07-02 08:56:39 +00:00
|
|
|
ret = wait_event_interruptible_timeout(adapter->request_wq,
|
2009-04-17 13:08:12 +00:00
|
|
|
zfcp_fsf_sbal_check(adapter), 5 * HZ);
|
2008-07-02 08:56:39 +00:00
|
|
|
if (ret > 0)
|
|
|
|
return 0;
|
2009-07-13 13:06:10 +00:00
|
|
|
if (!ret) {
|
2008-10-01 10:42:14 +00:00
|
|
|
atomic_inc(&adapter->qdio_outb_full);
|
2009-07-13 13:06:10 +00:00
|
|
|
/* assume hanging outbound queue, try queue recovery */
|
|
|
|
zfcp_erp_adapter_reopen(adapter, 0, "fsrsg_1", NULL);
|
|
|
|
}
|
2009-04-17 13:08:12 +00:00
|
|
|
|
|
|
|
spin_lock_bh(&adapter->req_q_lock);
|
2008-07-02 08:56:39 +00:00
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
|
2009-08-18 13:43:15 +00:00
|
|
|
static struct zfcp_fsf_req *zfcp_fsf_alloc(mempool_t *pool)
|
2008-07-02 08:56:39 +00:00
|
|
|
{
|
|
|
|
struct zfcp_fsf_req *req;
|
2009-08-18 13:43:15 +00:00
|
|
|
|
|
|
|
if (likely(pool))
|
|
|
|
req = mempool_alloc(pool, GFP_ATOMIC);
|
|
|
|
else
|
|
|
|
req = kmalloc(sizeof(*req), GFP_ATOMIC);
|
|
|
|
|
|
|
|
if (unlikely(!req))
|
2008-07-02 08:56:39 +00:00
|
|
|
return NULL;
|
2009-08-18 13:43:15 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
memset(req, 0, sizeof(*req));
|
2008-11-04 15:35:07 +00:00
|
|
|
req->pool = pool;
|
2008-07-02 08:56:39 +00:00
|
|
|
return req;
|
|
|
|
}
|
|
|
|
|
2009-08-18 13:43:15 +00:00
|
|
|
static struct fsf_qtcb *zfcp_qtcb_alloc(mempool_t *pool)
|
2008-07-02 08:56:39 +00:00
|
|
|
{
|
2009-08-18 13:43:15 +00:00
|
|
|
struct fsf_qtcb *qtcb;
|
2008-07-02 08:56:39 +00:00
|
|
|
|
|
|
|
if (likely(pool))
|
|
|
|
qtcb = mempool_alloc(pool, GFP_ATOMIC);
|
|
|
|
else
|
2009-08-18 13:43:15 +00:00
|
|
|
qtcb = kmem_cache_alloc(zfcp_data.qtcb_cache, GFP_ATOMIC);
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (unlikely(!qtcb))
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
memset(qtcb, 0, sizeof(*qtcb));
|
2009-08-18 13:43:15 +00:00
|
|
|
return qtcb;
|
2008-07-02 08:56:39 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_adapter *adapter,
|
|
|
|
u32 fsf_cmd, int req_flags,
|
|
|
|
mempool_t *pool)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-10-01 10:42:16 +00:00
|
|
|
struct qdio_buffer_element *sbale;
|
2008-07-02 08:56:39 +00:00
|
|
|
struct zfcp_qdio_queue *req_q = &adapter->req_q;
|
2009-08-18 13:43:15 +00:00
|
|
|
struct zfcp_fsf_req *req = zfcp_fsf_alloc(pool);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (unlikely(!req))
|
2009-07-13 13:06:04 +00:00
|
|
|
return ERR_PTR(-ENOMEM);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (adapter->req_no == 0)
|
|
|
|
adapter->req_no++;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
INIT_LIST_HEAD(&req->list);
|
|
|
|
init_timer(&req->timer);
|
2009-08-18 13:43:14 +00:00
|
|
|
init_completion(&req->completion);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
req->adapter = adapter;
|
|
|
|
req->fsf_command = fsf_cmd;
|
2009-03-02 12:08:58 +00:00
|
|
|
req->req_id = adapter->req_no;
|
2008-07-02 08:56:39 +00:00
|
|
|
req->sbal_number = 1;
|
|
|
|
req->sbal_first = req_q->first;
|
|
|
|
req->sbal_last = req_q->first;
|
|
|
|
req->sbale_curr = 1;
|
|
|
|
|
|
|
|
sbale = zfcp_qdio_sbale_req(req);
|
|
|
|
sbale[0].addr = (void *) req->req_id;
|
|
|
|
sbale[0].flags |= SBAL_FLAGS0_COMMAND;
|
|
|
|
|
2009-08-18 13:43:15 +00:00
|
|
|
if (likely(fsf_cmd != FSF_QTCB_UNSOLICITED_STATUS)) {
|
|
|
|
if (likely(pool))
|
|
|
|
req->qtcb = zfcp_qtcb_alloc(adapter->pool.qtcb_pool);
|
|
|
|
else
|
|
|
|
req->qtcb = zfcp_qtcb_alloc(NULL);
|
|
|
|
|
|
|
|
if (unlikely(!req->qtcb)) {
|
|
|
|
zfcp_fsf_req_free(req);
|
|
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
req->qtcb->prefix.req_seq_no = req->adapter->fsf_req_seq_no;
|
|
|
|
req->qtcb->prefix.req_id = req->req_id;
|
|
|
|
req->qtcb->prefix.ulp_info = 26;
|
|
|
|
req->qtcb->prefix.qtcb_type = fsf_qtcb_type[req->fsf_command];
|
|
|
|
req->qtcb->prefix.qtcb_version = FSF_QTCB_CURRENT_VERSION;
|
|
|
|
req->qtcb->header.req_handle = req->req_id;
|
|
|
|
req->qtcb->header.fsf_command = req->fsf_command;
|
|
|
|
req->seq_no = adapter->fsf_req_seq_no;
|
|
|
|
req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no;
|
|
|
|
sbale[1].addr = (void *) req->qtcb;
|
|
|
|
sbale[1].length = sizeof(struct fsf_qtcb);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP)) {
|
|
|
|
zfcp_fsf_req_free(req);
|
|
|
|
return ERR_PTR(-EIO);
|
|
|
|
}
|
2007-12-20 11:30:24 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (likely(req_flags & ZFCP_REQ_AUTO_CLEANUP))
|
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
return req;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
static int zfcp_fsf_req_send(struct zfcp_fsf_req *req)
|
|
|
|
{
|
|
|
|
struct zfcp_adapter *adapter = req->adapter;
|
2009-04-17 13:08:01 +00:00
|
|
|
unsigned long flags;
|
|
|
|
int idx;
|
|
|
|
int with_qtcb = (req->qtcb != NULL);
|
2008-07-02 08:56:39 +00:00
|
|
|
|
|
|
|
/* put allocated FSF request into hash table */
|
2008-11-04 15:35:06 +00:00
|
|
|
spin_lock_irqsave(&adapter->req_list_lock, flags);
|
2008-07-02 08:56:39 +00:00
|
|
|
idx = zfcp_reqlist_hash(req->req_id);
|
|
|
|
list_add_tail(&req->list, &adapter->req_list[idx]);
|
2008-11-04 15:35:06 +00:00
|
|
|
spin_unlock_irqrestore(&adapter->req_list_lock, flags);
|
2008-07-02 08:56:39 +00:00
|
|
|
|
2008-11-04 15:35:08 +00:00
|
|
|
req->qdio_outb_usage = atomic_read(&adapter->req_q.count);
|
2008-07-02 08:56:39 +00:00
|
|
|
req->issued = get_clock();
|
|
|
|
if (zfcp_qdio_send(req)) {
|
|
|
|
del_timer(&req->timer);
|
2008-11-04 15:35:08 +00:00
|
|
|
spin_lock_irqsave(&adapter->req_list_lock, flags);
|
|
|
|
/* lookup request again, list might have changed */
|
|
|
|
if (zfcp_reqlist_find_safe(adapter, req))
|
|
|
|
zfcp_reqlist_remove(adapter, req);
|
|
|
|
spin_unlock_irqrestore(&adapter->req_list_lock, flags);
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_adapter_reopen(adapter, 0, "fsrs__1", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Don't increase for unsolicited status */
|
2009-04-17 13:08:01 +00:00
|
|
|
if (with_qtcb)
|
2008-07-02 08:56:39 +00:00
|
|
|
adapter->fsf_req_seq_no++;
|
2009-03-02 12:08:58 +00:00
|
|
|
adapter->req_no++;
|
2008-07-02 08:56:39 +00:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* zfcp_fsf_status_read - send status read request
|
|
|
|
* @adapter: pointer to struct zfcp_adapter
|
|
|
|
* @req_flags: request flags
|
|
|
|
* Returns: 0 on success, ERROR otherwise
|
2005-04-16 22:20:36 +00:00
|
|
|
*/
|
2008-07-02 08:56:39 +00:00
|
|
|
int zfcp_fsf_status_read(struct zfcp_adapter *adapter)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-07-02 08:56:39 +00:00
|
|
|
struct zfcp_fsf_req *req;
|
|
|
|
struct fsf_status_read_buffer *sr_buf;
|
2008-10-01 10:42:16 +00:00
|
|
|
struct qdio_buffer_element *sbale;
|
2008-07-02 08:56:39 +00:00
|
|
|
int retval = -EIO;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_lock_bh(&adapter->req_q_lock);
|
2008-07-02 08:56:39 +00:00
|
|
|
if (zfcp_fsf_req_sbal_get(adapter))
|
|
|
|
goto out;
|
|
|
|
|
2009-08-18 13:43:15 +00:00
|
|
|
req = zfcp_fsf_req_create(adapter, FSF_QTCB_UNSOLICITED_STATUS, 0,
|
|
|
|
adapter->pool.status_read_req);
|
2008-08-21 11:43:37 +00:00
|
|
|
if (IS_ERR(req)) {
|
2008-07-02 08:56:39 +00:00
|
|
|
retval = PTR_ERR(req);
|
|
|
|
goto out;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
sbale = zfcp_qdio_sbale_req(req);
|
|
|
|
sbale[2].flags |= SBAL_FLAGS_LAST_ENTRY;
|
|
|
|
req->sbale_curr = 2;
|
|
|
|
|
2009-08-18 13:43:15 +00:00
|
|
|
sr_buf = mempool_alloc(adapter->pool.status_read_data, GFP_ATOMIC);
|
2008-07-02 08:56:39 +00:00
|
|
|
if (!sr_buf) {
|
|
|
|
retval = -ENOMEM;
|
|
|
|
goto failed_buf;
|
|
|
|
}
|
|
|
|
memset(sr_buf, 0, sizeof(*sr_buf));
|
|
|
|
req->data = sr_buf;
|
|
|
|
sbale = zfcp_qdio_sbale_curr(req);
|
|
|
|
sbale->addr = (void *) sr_buf;
|
|
|
|
sbale->length = sizeof(*sr_buf);
|
2005-09-13 19:47:52 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
retval = zfcp_fsf_req_send(req);
|
|
|
|
if (retval)
|
|
|
|
goto failed_req_send;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
goto out;
|
|
|
|
|
|
|
|
failed_req_send:
|
2009-08-18 13:43:15 +00:00
|
|
|
mempool_free(sr_buf, adapter->pool.status_read_data);
|
2008-07-02 08:56:39 +00:00
|
|
|
failed_buf:
|
|
|
|
zfcp_fsf_req_free(req);
|
|
|
|
zfcp_hba_dbf_event_fsf_unsol("fail", adapter, NULL);
|
|
|
|
out:
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_unlock_bh(&adapter->req_q_lock);
|
2008-07-02 08:56:39 +00:00
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req)
|
|
|
|
{
|
|
|
|
struct zfcp_unit *unit = req->data;
|
|
|
|
union fsf_status_qual *fsq = &req->qtcb->header.fsf_status_qual;
|
|
|
|
|
|
|
|
if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
|
|
|
|
return;
|
|
|
|
|
|
|
|
switch (req->qtcb->header.fsf_status) {
|
2005-04-16 22:20:36 +00:00
|
|
|
case FSF_PORT_HANDLE_NOT_VALID:
|
2008-07-02 08:56:39 +00:00
|
|
|
if (fsq->word[0] == fsq->word[1]) {
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_adapter_reopen(unit->port->adapter, 0,
|
|
|
|
"fsafch1", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
case FSF_LUN_HANDLE_NOT_VALID:
|
2008-07-02 08:56:39 +00:00
|
|
|
if (fsq->word[0] == fsq->word[1]) {
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_port_reopen(unit->port, 0, "fsafch2", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
case FSF_FCP_COMMAND_DOES_NOT_EXIST:
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
case FSF_PORT_BOXED:
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_port_boxed(unit->port, "fsafch3", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR |
|
|
|
|
ZFCP_STATUS_FSFREQ_RETRY;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
case FSF_LUN_BOXED:
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_unit_boxed(unit, "fsafch4", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR |
|
|
|
|
ZFCP_STATUS_FSFREQ_RETRY;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
case FSF_ADAPTER_STATUS_AVAILABLE:
|
2008-07-02 08:56:39 +00:00
|
|
|
switch (fsq->word[0]) {
|
2005-04-16 22:20:36 +00:00
|
|
|
case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE:
|
2005-06-13 11:16:27 +00:00
|
|
|
zfcp_test_link(unit->port);
|
2009-05-15 11:18:18 +00:00
|
|
|
/* fall through */
|
2005-04-16 22:20:36 +00:00
|
|
|
case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED:
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case FSF_GOOD:
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
2008-07-02 08:56:39 +00:00
|
|
|
* zfcp_fsf_abort_fcp_command - abort running SCSI command
|
|
|
|
* @old_req_id: unsigned long
|
|
|
|
* @unit: pointer to struct zfcp_unit
|
|
|
|
* Returns: pointer to struct zfcp_fsf_req
|
2005-04-16 22:20:36 +00:00
|
|
|
*/
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id,
|
2009-03-02 12:09:00 +00:00
|
|
|
struct zfcp_unit *unit)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-10-01 10:42:16 +00:00
|
|
|
struct qdio_buffer_element *sbale;
|
2008-07-02 08:56:39 +00:00
|
|
|
struct zfcp_fsf_req *req = NULL;
|
2009-03-02 12:09:00 +00:00
|
|
|
struct zfcp_adapter *adapter = unit->port->adapter;
|
2005-09-13 19:50:38 +00:00
|
|
|
|
2009-03-02 12:08:59 +00:00
|
|
|
spin_lock_bh(&adapter->req_q_lock);
|
|
|
|
if (zfcp_fsf_req_sbal_get(adapter))
|
2008-07-02 08:56:39 +00:00
|
|
|
goto out;
|
|
|
|
req = zfcp_fsf_req_create(adapter, FSF_QTCB_ABORT_FCP_CMND,
|
2009-08-18 13:43:15 +00:00
|
|
|
0, adapter->pool.scsi_abort);
|
2008-11-26 17:07:37 +00:00
|
|
|
if (IS_ERR(req)) {
|
|
|
|
req = NULL;
|
2008-07-02 08:56:39 +00:00
|
|
|
goto out;
|
2008-11-26 17:07:37 +00:00
|
|
|
}
|
2006-09-18 20:29:56 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (unlikely(!(atomic_read(&unit->status) &
|
|
|
|
ZFCP_STATUS_COMMON_UNBLOCKED)))
|
|
|
|
goto out_error_free;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
sbale = zfcp_qdio_sbale_req(req);
|
|
|
|
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
|
|
|
|
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
req->data = unit;
|
|
|
|
req->handler = zfcp_fsf_abort_fcp_command_handler;
|
|
|
|
req->qtcb->header.lun_handle = unit->handle;
|
|
|
|
req->qtcb->header.port_handle = unit->port->handle;
|
|
|
|
req->qtcb->bottom.support.req_handle = (u64) old_req_id;
|
|
|
|
|
|
|
|
zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT);
|
|
|
|
if (!zfcp_fsf_req_send(req))
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
out_error_free:
|
|
|
|
zfcp_fsf_req_free(req);
|
|
|
|
req = NULL;
|
|
|
|
out:
|
2009-03-02 12:08:59 +00:00
|
|
|
spin_unlock_bh(&adapter->req_q_lock);
|
2008-07-02 08:56:39 +00:00
|
|
|
return req;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
static void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-07-02 08:56:39 +00:00
|
|
|
struct zfcp_adapter *adapter = req->adapter;
|
|
|
|
struct zfcp_send_ct *send_ct = req->data;
|
|
|
|
struct fsf_qtcb_header *header = &req->qtcb->header;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
send_ct->status = -EINVAL;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
|
2005-04-16 22:20:36 +00:00
|
|
|
goto skip_fsfstatus;
|
|
|
|
|
|
|
|
switch (header->fsf_status) {
|
|
|
|
case FSF_GOOD:
|
2008-07-02 08:56:39 +00:00
|
|
|
zfcp_san_dbf_event_ct_response(req);
|
|
|
|
send_ct->status = 0;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
case FSF_SERVICE_CLASS_NOT_SUPPORTED:
|
2008-07-02 08:56:39 +00:00
|
|
|
zfcp_fsf_class_not_supp(req);
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
case FSF_ADAPTER_STATUS_AVAILABLE:
|
|
|
|
switch (header->fsf_status_qual.word[0]){
|
|
|
|
case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE:
|
|
|
|
case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED:
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case FSF_ACCESS_DENIED:
|
|
|
|
break;
|
|
|
|
case FSF_PORT_BOXED:
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR |
|
|
|
|
ZFCP_STATUS_FSFREQ_RETRY;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
2008-07-02 08:56:39 +00:00
|
|
|
case FSF_PORT_HANDLE_NOT_VALID:
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_adapter_reopen(adapter, 0, "fsscth1", req);
|
2009-05-15 11:18:18 +00:00
|
|
|
/* fall through */
|
2008-07-02 08:56:39 +00:00
|
|
|
case FSF_GENERIC_COMMAND_REJECTED:
|
2005-04-16 22:20:36 +00:00
|
|
|
case FSF_PAYLOAD_SIZE_MISMATCH:
|
|
|
|
case FSF_REQUEST_SIZE_TOO_LARGE:
|
|
|
|
case FSF_RESPONSE_SIZE_TOO_LARGE:
|
|
|
|
case FSF_SBAL_MISMATCH:
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
skip_fsfstatus:
|
2008-07-02 08:56:39 +00:00
|
|
|
if (send_ct->handler)
|
2005-04-16 22:20:36 +00:00
|
|
|
send_ct->handler(send_ct->handler_data);
|
2008-07-02 08:56:39 +00:00
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2009-07-13 13:06:06 +00:00
|
|
|
static void zfcp_fsf_setup_ct_els_unchained(struct qdio_buffer_element *sbale,
|
|
|
|
struct scatterlist *sg_req,
|
|
|
|
struct scatterlist *sg_resp)
|
|
|
|
{
|
|
|
|
sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE_READ;
|
|
|
|
sbale[2].addr = sg_virt(sg_req);
|
|
|
|
sbale[2].length = sg_req->length;
|
|
|
|
sbale[3].addr = sg_virt(sg_resp);
|
|
|
|
sbale[3].length = sg_resp->length;
|
|
|
|
sbale[3].flags |= SBAL_FLAGS_LAST_ENTRY;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int zfcp_fsf_one_sbal(struct scatterlist *sg)
|
|
|
|
{
|
|
|
|
return sg_is_last(sg) && sg->length <= PAGE_SIZE;
|
|
|
|
}
|
|
|
|
|
2008-12-19 15:57:01 +00:00
|
|
|
static int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req,
|
|
|
|
struct scatterlist *sg_req,
|
|
|
|
struct scatterlist *sg_resp,
|
|
|
|
int max_sbals)
|
2008-07-02 08:56:39 +00:00
|
|
|
{
|
2008-12-19 15:57:01 +00:00
|
|
|
struct qdio_buffer_element *sbale = zfcp_qdio_sbale_req(req);
|
|
|
|
u32 feat = req->adapter->adapter_features;
|
2008-07-02 08:56:39 +00:00
|
|
|
int bytes;
|
|
|
|
|
2008-12-19 15:57:01 +00:00
|
|
|
if (!(feat & FSF_FEATURE_ELS_CT_CHAINED_SBALS)) {
|
2009-07-13 13:06:06 +00:00
|
|
|
if (!zfcp_fsf_one_sbal(sg_req) || !zfcp_fsf_one_sbal(sg_resp))
|
2008-12-19 15:57:01 +00:00
|
|
|
return -EOPNOTSUPP;
|
|
|
|
|
2009-07-13 13:06:06 +00:00
|
|
|
zfcp_fsf_setup_ct_els_unchained(sbale, sg_req, sg_resp);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* use single, unchained SBAL if it can hold the request */
|
|
|
|
if (zfcp_fsf_one_sbal(sg_req) && zfcp_fsf_one_sbal(sg_resp)) {
|
|
|
|
zfcp_fsf_setup_ct_els_unchained(sbale, sg_req, sg_resp);
|
2008-12-19 15:57:01 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
bytes = zfcp_qdio_sbals_from_sg(req, SBAL_FLAGS0_TYPE_WRITE_READ,
|
|
|
|
sg_req, max_sbals);
|
|
|
|
if (bytes <= 0)
|
2009-07-13 13:06:07 +00:00
|
|
|
return -EIO;
|
2008-07-02 08:56:39 +00:00
|
|
|
req->qtcb->bottom.support.req_buf_length = bytes;
|
|
|
|
req->sbale_curr = ZFCP_LAST_SBALE_PER_SBAL;
|
|
|
|
|
|
|
|
bytes = zfcp_qdio_sbals_from_sg(req, SBAL_FLAGS0_TYPE_WRITE_READ,
|
|
|
|
sg_resp, max_sbals);
|
|
|
|
if (bytes <= 0)
|
2009-07-13 13:06:07 +00:00
|
|
|
return -EIO;
|
2008-07-02 08:56:39 +00:00
|
|
|
req->qtcb->bottom.support.resp_buf_length = bytes;
|
|
|
|
|
|
|
|
return 0;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
2008-07-02 08:56:39 +00:00
|
|
|
* zfcp_fsf_send_ct - initiate a Generic Service request (FC-GS)
|
|
|
|
* @ct: pointer to struct zfcp_send_ct with data for request
|
|
|
|
* @pool: if non-null this mempool is used to allocate struct zfcp_fsf_req
|
|
|
|
* @erp_action: if non-null the Generic Service request sent within ERP
|
2005-04-16 22:20:36 +00:00
|
|
|
*/
|
2008-07-02 08:56:39 +00:00
|
|
|
int zfcp_fsf_send_ct(struct zfcp_send_ct *ct, mempool_t *pool,
|
|
|
|
struct zfcp_erp_action *erp_action)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-10-01 10:42:17 +00:00
|
|
|
struct zfcp_wka_port *wka_port = ct->wka_port;
|
|
|
|
struct zfcp_adapter *adapter = wka_port->adapter;
|
2008-07-02 08:56:39 +00:00
|
|
|
struct zfcp_fsf_req *req;
|
|
|
|
int ret = -EIO;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_lock_bh(&adapter->req_q_lock);
|
2008-07-02 08:56:39 +00:00
|
|
|
if (zfcp_fsf_req_sbal_get(adapter))
|
|
|
|
goto out;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
req = zfcp_fsf_req_create(adapter, FSF_QTCB_SEND_GENERIC,
|
|
|
|
ZFCP_REQ_AUTO_CLEANUP, pool);
|
2008-08-21 11:43:37 +00:00
|
|
|
if (IS_ERR(req)) {
|
2008-07-02 08:56:39 +00:00
|
|
|
ret = PTR_ERR(req);
|
|
|
|
goto out;
|
2007-12-20 11:30:25 +00:00
|
|
|
}
|
|
|
|
|
2008-12-19 15:57:01 +00:00
|
|
|
ret = zfcp_fsf_setup_ct_els_sbals(req, ct->req, ct->resp,
|
|
|
|
FSF_MAX_SBALS_PER_REQ);
|
2008-06-10 16:20:58 +00:00
|
|
|
if (ret)
|
2005-04-16 22:20:36 +00:00
|
|
|
goto failed_send;
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
req->handler = zfcp_fsf_send_ct_handler;
|
2008-10-01 10:42:17 +00:00
|
|
|
req->qtcb->header.port_handle = wka_port->handle;
|
2008-07-02 08:56:39 +00:00
|
|
|
req->qtcb->bottom.support.service_class = FSF_CLASS_3;
|
|
|
|
req->qtcb->bottom.support.timeout = ct->timeout;
|
|
|
|
req->data = ct;
|
|
|
|
|
|
|
|
zfcp_san_dbf_event_ct_request(req);
|
|
|
|
|
|
|
|
if (erp_action) {
|
|
|
|
erp_action->fsf_req = req;
|
|
|
|
req->erp_action = erp_action;
|
2008-07-02 08:56:40 +00:00
|
|
|
zfcp_fsf_start_erp_timer(req);
|
2008-07-02 08:56:39 +00:00
|
|
|
} else
|
|
|
|
zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
ret = zfcp_fsf_req_send(req);
|
|
|
|
if (ret)
|
|
|
|
goto failed_send;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
goto out;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
failed_send:
|
|
|
|
zfcp_fsf_req_free(req);
|
|
|
|
if (erp_action)
|
|
|
|
erp_action->fsf_req = NULL;
|
|
|
|
out:
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_unlock_bh(&adapter->req_q_lock);
|
2008-07-02 08:56:39 +00:00
|
|
|
return ret;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
static void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-07-02 08:56:39 +00:00
|
|
|
struct zfcp_send_els *send_els = req->data;
|
|
|
|
struct zfcp_port *port = send_els->port;
|
|
|
|
struct fsf_qtcb_header *header = &req->qtcb->header;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
send_els->status = -EINVAL;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
|
2005-04-16 22:20:36 +00:00
|
|
|
goto skip_fsfstatus;
|
|
|
|
|
|
|
|
switch (header->fsf_status) {
|
|
|
|
case FSF_GOOD:
|
2008-07-02 08:56:39 +00:00
|
|
|
zfcp_san_dbf_event_els_response(req);
|
|
|
|
send_els->status = 0;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
case FSF_SERVICE_CLASS_NOT_SUPPORTED:
|
2008-07-02 08:56:39 +00:00
|
|
|
zfcp_fsf_class_not_supp(req);
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
case FSF_ADAPTER_STATUS_AVAILABLE:
|
|
|
|
switch (header->fsf_status_qual.word[0]){
|
|
|
|
case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE:
|
2005-06-13 11:18:56 +00:00
|
|
|
if (port && (send_els->ls_code != ZFCP_LS_ADISC))
|
|
|
|
zfcp_test_link(port);
|
2008-07-02 08:56:39 +00:00
|
|
|
/*fall through */
|
2005-04-16 22:20:36 +00:00
|
|
|
case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED:
|
|
|
|
case FSF_SQ_RETRY_IF_POSSIBLE:
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case FSF_ELS_COMMAND_REJECTED:
|
|
|
|
case FSF_PAYLOAD_SIZE_MISMATCH:
|
|
|
|
case FSF_REQUEST_SIZE_TOO_LARGE:
|
|
|
|
case FSF_RESPONSE_SIZE_TOO_LARGE:
|
|
|
|
break;
|
|
|
|
case FSF_ACCESS_DENIED:
|
2009-05-15 11:18:22 +00:00
|
|
|
if (port)
|
|
|
|
zfcp_fsf_access_denied_port(req, port);
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
2008-07-02 08:56:39 +00:00
|
|
|
case FSF_SBAL_MISMATCH:
|
|
|
|
/* should never occure, avoided in zfcp_fsf_send_els */
|
|
|
|
/* fall through */
|
2005-04-16 22:20:36 +00:00
|
|
|
default:
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
skip_fsfstatus:
|
2007-07-18 08:55:10 +00:00
|
|
|
if (send_els->handler)
|
2005-04-16 22:20:36 +00:00
|
|
|
send_els->handler(send_els->handler_data);
|
2008-07-02 08:56:39 +00:00
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
/**
|
|
|
|
* zfcp_fsf_send_els - initiate an ELS command (FC-FS)
|
|
|
|
* @els: pointer to struct zfcp_send_els with data for the command
|
|
|
|
*/
|
|
|
|
int zfcp_fsf_send_els(struct zfcp_send_els *els)
|
|
|
|
{
|
|
|
|
struct zfcp_fsf_req *req;
|
|
|
|
struct zfcp_adapter *adapter = els->adapter;
|
|
|
|
struct fsf_qtcb_bottom_support *bottom;
|
|
|
|
int ret = -EIO;
|
|
|
|
|
2009-03-02 12:09:01 +00:00
|
|
|
spin_lock_bh(&adapter->req_q_lock);
|
|
|
|
if (zfcp_fsf_req_sbal_get(adapter))
|
2008-07-02 08:56:39 +00:00
|
|
|
goto out;
|
|
|
|
req = zfcp_fsf_req_create(adapter, FSF_QTCB_SEND_ELS,
|
|
|
|
ZFCP_REQ_AUTO_CLEANUP, NULL);
|
2008-08-21 11:43:37 +00:00
|
|
|
if (IS_ERR(req)) {
|
2008-07-02 08:56:39 +00:00
|
|
|
ret = PTR_ERR(req);
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
2008-12-19 15:57:01 +00:00
|
|
|
ret = zfcp_fsf_setup_ct_els_sbals(req, els->req, els->resp, 2);
|
2008-10-01 10:42:16 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (ret)
|
|
|
|
goto failed_send;
|
|
|
|
|
|
|
|
bottom = &req->qtcb->bottom.support;
|
|
|
|
req->handler = zfcp_fsf_send_els_handler;
|
|
|
|
bottom->d_id = els->d_id;
|
|
|
|
bottom->service_class = FSF_CLASS_3;
|
|
|
|
bottom->timeout = 2 * R_A_TOV;
|
|
|
|
req->data = els;
|
|
|
|
|
|
|
|
zfcp_san_dbf_event_els_request(req);
|
|
|
|
|
|
|
|
zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
|
|
|
|
ret = zfcp_fsf_req_send(req);
|
|
|
|
if (ret)
|
|
|
|
goto failed_send;
|
|
|
|
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
failed_send:
|
|
|
|
zfcp_fsf_req_free(req);
|
|
|
|
out:
|
2009-03-02 12:09:01 +00:00
|
|
|
spin_unlock_bh(&adapter->req_q_lock);
|
2008-07-02 08:56:39 +00:00
|
|
|
return ret;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-10-01 10:42:16 +00:00
|
|
|
struct qdio_buffer_element *sbale;
|
2008-07-02 08:56:39 +00:00
|
|
|
struct zfcp_fsf_req *req;
|
2007-08-28 07:31:09 +00:00
|
|
|
struct zfcp_adapter *adapter = erp_action->adapter;
|
2008-07-02 08:56:39 +00:00
|
|
|
int retval = -EIO;
|
|
|
|
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_lock_bh(&adapter->req_q_lock);
|
2009-03-02 12:08:59 +00:00
|
|
|
if (zfcp_fsf_req_sbal_get(adapter))
|
2008-07-02 08:56:39 +00:00
|
|
|
goto out;
|
|
|
|
req = zfcp_fsf_req_create(adapter,
|
|
|
|
FSF_QTCB_EXCHANGE_CONFIG_DATA,
|
|
|
|
ZFCP_REQ_AUTO_CLEANUP,
|
2009-08-18 13:43:15 +00:00
|
|
|
adapter->pool.erp_req);
|
2008-08-21 11:43:37 +00:00
|
|
|
if (IS_ERR(req)) {
|
2008-07-02 08:56:39 +00:00
|
|
|
retval = PTR_ERR(req);
|
|
|
|
goto out;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
sbale = zfcp_qdio_sbale_req(req);
|
2007-08-28 07:31:09 +00:00
|
|
|
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
|
|
|
|
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
req->qtcb->bottom.config.feature_selection =
|
2005-09-13 19:51:16 +00:00
|
|
|
FSF_FEATURE_CFDC |
|
|
|
|
FSF_FEATURE_LUN_SHARING |
|
2006-01-05 08:56:47 +00:00
|
|
|
FSF_FEATURE_NOTIFICATION_LOST |
|
2005-09-13 19:51:16 +00:00
|
|
|
FSF_FEATURE_UPDATE_ALERT;
|
2008-07-02 08:56:39 +00:00
|
|
|
req->erp_action = erp_action;
|
|
|
|
req->handler = zfcp_fsf_exchange_config_data_handler;
|
|
|
|
erp_action->fsf_req = req;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:40 +00:00
|
|
|
zfcp_fsf_start_erp_timer(req);
|
2008-07-02 08:56:39 +00:00
|
|
|
retval = zfcp_fsf_req_send(req);
|
2005-04-16 22:20:36 +00:00
|
|
|
if (retval) {
|
2008-07-02 08:56:39 +00:00
|
|
|
zfcp_fsf_req_free(req);
|
2005-04-16 22:20:36 +00:00
|
|
|
erp_action->fsf_req = NULL;
|
|
|
|
}
|
2008-07-02 08:56:39 +00:00
|
|
|
out:
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_unlock_bh(&adapter->req_q_lock);
|
2007-08-28 07:31:09 +00:00
|
|
|
return retval;
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
int zfcp_fsf_exchange_config_data_sync(struct zfcp_adapter *adapter,
|
|
|
|
struct fsf_qtcb_bottom_config *data)
|
2007-08-28 07:31:09 +00:00
|
|
|
{
|
2008-10-01 10:42:16 +00:00
|
|
|
struct qdio_buffer_element *sbale;
|
2008-07-02 08:56:39 +00:00
|
|
|
struct zfcp_fsf_req *req = NULL;
|
|
|
|
int retval = -EIO;
|
|
|
|
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_lock_bh(&adapter->req_q_lock);
|
2008-07-02 08:56:39 +00:00
|
|
|
if (zfcp_fsf_req_sbal_get(adapter))
|
2009-04-17 13:08:03 +00:00
|
|
|
goto out_unlock;
|
2008-07-02 08:56:39 +00:00
|
|
|
|
|
|
|
req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_CONFIG_DATA,
|
|
|
|
0, NULL);
|
2008-08-21 11:43:37 +00:00
|
|
|
if (IS_ERR(req)) {
|
2008-07-02 08:56:39 +00:00
|
|
|
retval = PTR_ERR(req);
|
2009-04-17 13:08:03 +00:00
|
|
|
goto out_unlock;
|
2007-08-28 07:31:09 +00:00
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
sbale = zfcp_qdio_sbale_req(req);
|
2007-08-28 07:31:09 +00:00
|
|
|
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
|
|
|
|
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
|
2008-07-02 08:56:39 +00:00
|
|
|
req->handler = zfcp_fsf_exchange_config_data_handler;
|
2007-08-28 07:31:09 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
req->qtcb->bottom.config.feature_selection =
|
2007-08-28 07:31:09 +00:00
|
|
|
FSF_FEATURE_CFDC |
|
|
|
|
FSF_FEATURE_LUN_SHARING |
|
|
|
|
FSF_FEATURE_NOTIFICATION_LOST |
|
|
|
|
FSF_FEATURE_UPDATE_ALERT;
|
|
|
|
|
|
|
|
if (data)
|
2008-07-02 08:56:39 +00:00
|
|
|
req->data = data;
|
2007-08-28 07:31:09 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
|
|
|
|
retval = zfcp_fsf_req_send(req);
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_unlock_bh(&adapter->req_q_lock);
|
2008-06-10 16:20:58 +00:00
|
|
|
if (!retval)
|
2009-08-18 13:43:14 +00:00
|
|
|
wait_for_completion(&req->completion);
|
2007-08-28 07:31:09 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
zfcp_fsf_req_free(req);
|
2009-04-17 13:08:03 +00:00
|
|
|
return retval;
|
2007-08-28 07:31:09 +00:00
|
|
|
|
2009-04-17 13:08:03 +00:00
|
|
|
out_unlock:
|
|
|
|
spin_unlock_bh(&adapter->req_q_lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* zfcp_fsf_exchange_port_data - request information about local port
|
2005-09-13 19:51:16 +00:00
|
|
|
* @erp_action: ERP action for the adapter for which port data is requested
|
2008-07-02 08:56:39 +00:00
|
|
|
* Returns: 0 on success, error otherwise
|
2005-04-16 22:20:36 +00:00
|
|
|
*/
|
2008-07-02 08:56:39 +00:00
|
|
|
int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-10-01 10:42:16 +00:00
|
|
|
struct qdio_buffer_element *sbale;
|
2008-07-02 08:56:39 +00:00
|
|
|
struct zfcp_fsf_req *req;
|
2007-08-28 07:31:09 +00:00
|
|
|
struct zfcp_adapter *adapter = erp_action->adapter;
|
2008-07-02 08:56:39 +00:00
|
|
|
int retval = -EIO;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-06-10 16:20:58 +00:00
|
|
|
if (!(adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT))
|
2007-08-28 07:31:09 +00:00
|
|
|
return -EOPNOTSUPP;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_lock_bh(&adapter->req_q_lock);
|
2009-03-02 12:08:59 +00:00
|
|
|
if (zfcp_fsf_req_sbal_get(adapter))
|
2008-07-02 08:56:39 +00:00
|
|
|
goto out;
|
|
|
|
req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA,
|
|
|
|
ZFCP_REQ_AUTO_CLEANUP,
|
2009-08-18 13:43:15 +00:00
|
|
|
adapter->pool.erp_req);
|
2008-08-21 11:43:37 +00:00
|
|
|
if (IS_ERR(req)) {
|
2008-07-02 08:56:39 +00:00
|
|
|
retval = PTR_ERR(req);
|
|
|
|
goto out;
|
2005-09-13 19:51:16 +00:00
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
sbale = zfcp_qdio_sbale_req(req);
|
2007-08-28 07:31:09 +00:00
|
|
|
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
|
|
|
|
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
req->handler = zfcp_fsf_exchange_port_data_handler;
|
|
|
|
req->erp_action = erp_action;
|
|
|
|
erp_action->fsf_req = req;
|
2007-08-28 07:31:09 +00:00
|
|
|
|
2008-07-02 08:56:40 +00:00
|
|
|
zfcp_fsf_start_erp_timer(req);
|
2008-07-02 08:56:39 +00:00
|
|
|
retval = zfcp_fsf_req_send(req);
|
2005-04-16 22:20:36 +00:00
|
|
|
if (retval) {
|
2008-07-02 08:56:39 +00:00
|
|
|
zfcp_fsf_req_free(req);
|
2007-08-28 07:31:09 +00:00
|
|
|
erp_action->fsf_req = NULL;
|
|
|
|
}
|
2008-07-02 08:56:39 +00:00
|
|
|
out:
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_unlock_bh(&adapter->req_q_lock);
|
2007-08-28 07:31:09 +00:00
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* zfcp_fsf_exchange_port_data_sync - request information about local port
|
2008-07-02 08:56:39 +00:00
|
|
|
* @adapter: pointer to struct zfcp_adapter
|
|
|
|
* @data: pointer to struct fsf_qtcb_bottom_port
|
|
|
|
* Returns: 0 on success, error otherwise
|
2007-08-28 07:31:09 +00:00
|
|
|
*/
|
2008-07-02 08:56:39 +00:00
|
|
|
int zfcp_fsf_exchange_port_data_sync(struct zfcp_adapter *adapter,
|
|
|
|
struct fsf_qtcb_bottom_port *data)
|
2007-08-28 07:31:09 +00:00
|
|
|
{
|
2008-10-01 10:42:16 +00:00
|
|
|
struct qdio_buffer_element *sbale;
|
2008-07-02 08:56:39 +00:00
|
|
|
struct zfcp_fsf_req *req = NULL;
|
|
|
|
int retval = -EIO;
|
2007-08-28 07:31:09 +00:00
|
|
|
|
2008-06-10 16:20:58 +00:00
|
|
|
if (!(adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT))
|
2007-08-28 07:31:09 +00:00
|
|
|
return -EOPNOTSUPP;
|
|
|
|
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_lock_bh(&adapter->req_q_lock);
|
2009-03-02 12:08:59 +00:00
|
|
|
if (zfcp_fsf_req_sbal_get(adapter))
|
2009-04-17 13:08:03 +00:00
|
|
|
goto out_unlock;
|
2008-07-02 08:56:39 +00:00
|
|
|
|
|
|
|
req = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA, 0,
|
|
|
|
NULL);
|
2008-08-21 11:43:37 +00:00
|
|
|
if (IS_ERR(req)) {
|
2008-07-02 08:56:39 +00:00
|
|
|
retval = PTR_ERR(req);
|
2009-04-17 13:08:03 +00:00
|
|
|
goto out_unlock;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2007-08-28 07:31:09 +00:00
|
|
|
if (data)
|
2008-07-02 08:56:39 +00:00
|
|
|
req->data = data;
|
2007-08-28 07:31:09 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
sbale = zfcp_qdio_sbale_req(req);
|
2007-08-28 07:31:09 +00:00
|
|
|
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
|
|
|
|
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
req->handler = zfcp_fsf_exchange_port_data_handler;
|
|
|
|
zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
|
|
|
|
retval = zfcp_fsf_req_send(req);
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_unlock_bh(&adapter->req_q_lock);
|
2009-04-17 13:08:03 +00:00
|
|
|
|
2008-06-10 16:20:58 +00:00
|
|
|
if (!retval)
|
2009-08-18 13:43:14 +00:00
|
|
|
wait_for_completion(&req->completion);
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
zfcp_fsf_req_free(req);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
return retval;
|
2009-04-17 13:08:03 +00:00
|
|
|
|
|
|
|
out_unlock:
|
|
|
|
spin_unlock_bh(&adapter->req_q_lock);
|
|
|
|
return retval;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
static void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-07-02 08:56:39 +00:00
|
|
|
struct zfcp_port *port = req->data;
|
|
|
|
struct fsf_qtcb_header *header = &req->qtcb->header;
|
2005-04-16 22:20:36 +00:00
|
|
|
struct fsf_plogi *plogi;
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
|
2009-05-15 11:18:19 +00:00
|
|
|
goto out;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
switch (header->fsf_status) {
|
|
|
|
case FSF_PORT_ALREADY_OPEN:
|
|
|
|
break;
|
|
|
|
case FSF_ACCESS_DENIED:
|
2008-07-02 08:56:39 +00:00
|
|
|
zfcp_fsf_access_denied_port(req, port);
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED:
|
2008-07-02 08:56:39 +00:00
|
|
|
dev_warn(&req->adapter->ccw_device->dev,
|
2008-10-01 10:42:15 +00:00
|
|
|
"Not enough FCP adapter resources to open "
|
2008-10-01 10:42:18 +00:00
|
|
|
"remote port 0x%016Lx\n",
|
|
|
|
(unsigned long long)port->wwpn);
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_port_failed(port, "fsoph_1", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
case FSF_ADAPTER_STATUS_AVAILABLE:
|
|
|
|
switch (header->fsf_status_qual.word[0]) {
|
|
|
|
case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE:
|
|
|
|
case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED:
|
|
|
|
case FSF_SQ_NO_RETRY_POSSIBLE:
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case FSF_GOOD:
|
|
|
|
port->handle = header->port_handle;
|
|
|
|
atomic_set_mask(ZFCP_STATUS_COMMON_OPEN |
|
|
|
|
ZFCP_STATUS_PORT_PHYS_OPEN, &port->status);
|
2005-06-13 11:23:57 +00:00
|
|
|
atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED |
|
|
|
|
ZFCP_STATUS_COMMON_ACCESS_BOXED,
|
|
|
|
&port->status);
|
2005-04-16 22:20:36 +00:00
|
|
|
/* check whether D_ID has changed during open */
|
|
|
|
/*
|
|
|
|
* FIXME: This check is not airtight, as the FCP channel does
|
|
|
|
* not monitor closures of target port connections caused on
|
|
|
|
* the remote side. Thus, they might miss out on invalidating
|
|
|
|
* locally cached WWPNs (and other N_Port parameters) of gone
|
|
|
|
* target ports. So, our heroic attempt to make things safe
|
|
|
|
* could be undermined by 'open port' response data tagged with
|
|
|
|
* obsolete WWPNs. Another reason to monitor potential
|
|
|
|
* connection closures ourself at least (by interpreting
|
|
|
|
* incoming ELS' and unsolicited status). It just crosses my
|
|
|
|
* mind that one should be able to cross-check by means of
|
|
|
|
* another GID_PN straight after a port has been opened.
|
|
|
|
* Alternately, an ADISC/PDISC ELS should suffice, as well.
|
|
|
|
*/
|
2008-07-02 08:56:39 +00:00
|
|
|
plogi = (struct fsf_plogi *) req->qtcb->bottom.support.els;
|
2008-12-19 15:57:01 +00:00
|
|
|
if (req->qtcb->bottom.support.els1_length >=
|
|
|
|
FSF_PLOGI_MIN_LEN) {
|
2008-07-02 08:56:39 +00:00
|
|
|
if (plogi->serv_param.wwpn != port->wwpn)
|
2008-12-19 15:56:59 +00:00
|
|
|
port->d_id = 0;
|
2008-07-02 08:56:39 +00:00
|
|
|
else {
|
|
|
|
port->wwnn = plogi->serv_param.wwnn;
|
|
|
|
zfcp_fc_plogi_evaluate(port, plogi);
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case FSF_UNKNOWN_OP_SUBTYPE:
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
}
|
2009-05-15 11:18:19 +00:00
|
|
|
|
|
|
|
out:
|
|
|
|
zfcp_port_put(port);
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
/**
|
|
|
|
* zfcp_fsf_open_port - create and send open port request
|
|
|
|
* @erp_action: pointer to struct zfcp_erp_action
|
|
|
|
* Returns: 0 on success, error otherwise
|
2005-04-16 22:20:36 +00:00
|
|
|
*/
|
2008-07-02 08:56:39 +00:00
|
|
|
int zfcp_fsf_open_port(struct zfcp_erp_action *erp_action)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-10-01 10:42:16 +00:00
|
|
|
struct qdio_buffer_element *sbale;
|
2008-07-02 08:56:39 +00:00
|
|
|
struct zfcp_adapter *adapter = erp_action->adapter;
|
|
|
|
struct zfcp_fsf_req *req;
|
2009-05-15 11:18:19 +00:00
|
|
|
struct zfcp_port *port = erp_action->port;
|
2008-07-02 08:56:39 +00:00
|
|
|
int retval = -EIO;
|
|
|
|
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_lock_bh(&adapter->req_q_lock);
|
2008-07-02 08:56:39 +00:00
|
|
|
if (zfcp_fsf_req_sbal_get(adapter))
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
req = zfcp_fsf_req_create(adapter,
|
|
|
|
FSF_QTCB_OPEN_PORT_WITH_DID,
|
|
|
|
ZFCP_REQ_AUTO_CLEANUP,
|
2009-08-18 13:43:15 +00:00
|
|
|
adapter->pool.erp_req);
|
2008-08-21 11:43:37 +00:00
|
|
|
if (IS_ERR(req)) {
|
2008-07-02 08:56:39 +00:00
|
|
|
retval = PTR_ERR(req);
|
2005-04-16 22:20:36 +00:00
|
|
|
goto out;
|
2008-07-02 08:56:39 +00:00
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
sbale = zfcp_qdio_sbale_req(req);
|
2005-04-16 22:20:36 +00:00
|
|
|
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
|
|
|
|
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
req->handler = zfcp_fsf_open_port_handler;
|
2009-05-15 11:18:19 +00:00
|
|
|
req->qtcb->bottom.support.d_id = port->d_id;
|
|
|
|
req->data = port;
|
2008-07-02 08:56:39 +00:00
|
|
|
req->erp_action = erp_action;
|
|
|
|
erp_action->fsf_req = req;
|
2009-05-15 11:18:19 +00:00
|
|
|
zfcp_port_get(port);
|
2008-07-02 08:56:39 +00:00
|
|
|
|
2008-07-02 08:56:40 +00:00
|
|
|
zfcp_fsf_start_erp_timer(req);
|
2008-07-02 08:56:39 +00:00
|
|
|
retval = zfcp_fsf_req_send(req);
|
2005-04-16 22:20:36 +00:00
|
|
|
if (retval) {
|
2008-07-02 08:56:39 +00:00
|
|
|
zfcp_fsf_req_free(req);
|
2005-04-16 22:20:36 +00:00
|
|
|
erp_action->fsf_req = NULL;
|
2009-05-15 11:18:19 +00:00
|
|
|
zfcp_port_put(port);
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
2008-07-02 08:56:39 +00:00
|
|
|
out:
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_unlock_bh(&adapter->req_q_lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
static void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-07-02 08:56:39 +00:00
|
|
|
struct zfcp_port *port = req->data;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
|
2008-10-01 10:42:16 +00:00
|
|
|
return;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
switch (req->qtcb->header.fsf_status) {
|
2005-04-16 22:20:36 +00:00
|
|
|
case FSF_PORT_HANDLE_NOT_VALID:
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_adapter_reopen(port->adapter, 0, "fscph_1", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
case FSF_ADAPTER_STATUS_AVAILABLE:
|
|
|
|
break;
|
|
|
|
case FSF_GOOD:
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_modify_port_status(port, "fscph_2", req,
|
2005-04-16 22:20:36 +00:00
|
|
|
ZFCP_STATUS_COMMON_OPEN,
|
|
|
|
ZFCP_CLEAR);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
/**
|
|
|
|
* zfcp_fsf_close_port - create and send close port request
|
|
|
|
* @erp_action: pointer to struct zfcp_erp_action
|
|
|
|
* Returns: 0 on success, error otherwise
|
2005-04-16 22:20:36 +00:00
|
|
|
*/
|
2008-07-02 08:56:39 +00:00
|
|
|
int zfcp_fsf_close_port(struct zfcp_erp_action *erp_action)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-10-01 10:42:16 +00:00
|
|
|
struct qdio_buffer_element *sbale;
|
2008-07-02 08:56:39 +00:00
|
|
|
struct zfcp_adapter *adapter = erp_action->adapter;
|
|
|
|
struct zfcp_fsf_req *req;
|
|
|
|
int retval = -EIO;
|
|
|
|
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_lock_bh(&adapter->req_q_lock);
|
2008-07-02 08:56:39 +00:00
|
|
|
if (zfcp_fsf_req_sbal_get(adapter))
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_PORT,
|
|
|
|
ZFCP_REQ_AUTO_CLEANUP,
|
2009-08-18 13:43:15 +00:00
|
|
|
adapter->pool.erp_req);
|
2008-08-21 11:43:37 +00:00
|
|
|
if (IS_ERR(req)) {
|
2008-07-02 08:56:39 +00:00
|
|
|
retval = PTR_ERR(req);
|
2005-04-16 22:20:36 +00:00
|
|
|
goto out;
|
2008-07-02 08:56:39 +00:00
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
sbale = zfcp_qdio_sbale_req(req);
|
2005-04-16 22:20:36 +00:00
|
|
|
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
|
|
|
|
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
req->handler = zfcp_fsf_close_port_handler;
|
|
|
|
req->data = erp_action->port;
|
|
|
|
req->erp_action = erp_action;
|
|
|
|
req->qtcb->header.port_handle = erp_action->port->handle;
|
|
|
|
erp_action->fsf_req = req;
|
|
|
|
|
2008-07-02 08:56:40 +00:00
|
|
|
zfcp_fsf_start_erp_timer(req);
|
2008-07-02 08:56:39 +00:00
|
|
|
retval = zfcp_fsf_req_send(req);
|
2005-04-16 22:20:36 +00:00
|
|
|
if (retval) {
|
2008-07-02 08:56:39 +00:00
|
|
|
zfcp_fsf_req_free(req);
|
2005-04-16 22:20:36 +00:00
|
|
|
erp_action->fsf_req = NULL;
|
|
|
|
}
|
2008-07-02 08:56:39 +00:00
|
|
|
out:
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_unlock_bh(&adapter->req_q_lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
2008-10-01 10:42:17 +00:00
|
|
|
static void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req)
|
|
|
|
{
|
|
|
|
struct zfcp_wka_port *wka_port = req->data;
|
|
|
|
struct fsf_qtcb_header *header = &req->qtcb->header;
|
|
|
|
|
|
|
|
if (req->status & ZFCP_STATUS_FSFREQ_ERROR) {
|
|
|
|
wka_port->status = ZFCP_WKA_PORT_OFFLINE;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
switch (header->fsf_status) {
|
|
|
|
case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED:
|
|
|
|
dev_warn(&req->adapter->ccw_device->dev,
|
|
|
|
"Opening WKA port 0x%x failed\n", wka_port->d_id);
|
2009-05-15 11:18:18 +00:00
|
|
|
/* fall through */
|
2008-10-01 10:42:17 +00:00
|
|
|
case FSF_ADAPTER_STATUS_AVAILABLE:
|
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
2009-05-15 11:18:18 +00:00
|
|
|
/* fall through */
|
2008-10-01 10:42:17 +00:00
|
|
|
case FSF_ACCESS_DENIED:
|
|
|
|
wka_port->status = ZFCP_WKA_PORT_OFFLINE;
|
|
|
|
break;
|
|
|
|
case FSF_GOOD:
|
|
|
|
wka_port->handle = header->port_handle;
|
2009-07-13 13:06:13 +00:00
|
|
|
/* fall through */
|
|
|
|
case FSF_PORT_ALREADY_OPEN:
|
2008-10-01 10:42:17 +00:00
|
|
|
wka_port->status = ZFCP_WKA_PORT_ONLINE;
|
|
|
|
}
|
|
|
|
out:
|
|
|
|
wake_up(&wka_port->completion_wq);
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* zfcp_fsf_open_wka_port - create and send open wka-port request
|
|
|
|
* @wka_port: pointer to struct zfcp_wka_port
|
|
|
|
* Returns: 0 on success, error otherwise
|
|
|
|
*/
|
|
|
|
int zfcp_fsf_open_wka_port(struct zfcp_wka_port *wka_port)
|
|
|
|
{
|
|
|
|
struct qdio_buffer_element *sbale;
|
|
|
|
struct zfcp_adapter *adapter = wka_port->adapter;
|
|
|
|
struct zfcp_fsf_req *req;
|
|
|
|
int retval = -EIO;
|
|
|
|
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_lock_bh(&adapter->req_q_lock);
|
2008-10-01 10:42:17 +00:00
|
|
|
if (zfcp_fsf_req_sbal_get(adapter))
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
req = zfcp_fsf_req_create(adapter,
|
|
|
|
FSF_QTCB_OPEN_PORT_WITH_DID,
|
|
|
|
ZFCP_REQ_AUTO_CLEANUP,
|
2009-08-18 13:43:15 +00:00
|
|
|
adapter->pool.erp_req);
|
2008-10-01 10:42:17 +00:00
|
|
|
if (unlikely(IS_ERR(req))) {
|
|
|
|
retval = PTR_ERR(req);
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
sbale = zfcp_qdio_sbale_req(req);
|
|
|
|
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
|
|
|
|
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
|
|
|
|
|
|
|
|
req->handler = zfcp_fsf_open_wka_port_handler;
|
|
|
|
req->qtcb->bottom.support.d_id = wka_port->d_id;
|
|
|
|
req->data = wka_port;
|
|
|
|
|
|
|
|
zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
|
|
|
|
retval = zfcp_fsf_req_send(req);
|
|
|
|
if (retval)
|
|
|
|
zfcp_fsf_req_free(req);
|
|
|
|
out:
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_unlock_bh(&adapter->req_q_lock);
|
2008-10-01 10:42:17 +00:00
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req)
|
|
|
|
{
|
|
|
|
struct zfcp_wka_port *wka_port = req->data;
|
|
|
|
|
|
|
|
if (req->qtcb->header.fsf_status == FSF_PORT_HANDLE_NOT_VALID) {
|
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_adapter_reopen(wka_port->adapter, 0, "fscwph1", req);
|
2008-10-01 10:42:17 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
wka_port->status = ZFCP_WKA_PORT_OFFLINE;
|
|
|
|
wake_up(&wka_port->completion_wq);
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* zfcp_fsf_close_wka_port - create and send close wka port request
|
|
|
|
* @erp_action: pointer to struct zfcp_erp_action
|
|
|
|
* Returns: 0 on success, error otherwise
|
|
|
|
*/
|
|
|
|
int zfcp_fsf_close_wka_port(struct zfcp_wka_port *wka_port)
|
|
|
|
{
|
|
|
|
struct qdio_buffer_element *sbale;
|
|
|
|
struct zfcp_adapter *adapter = wka_port->adapter;
|
|
|
|
struct zfcp_fsf_req *req;
|
|
|
|
int retval = -EIO;
|
|
|
|
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_lock_bh(&adapter->req_q_lock);
|
2008-10-01 10:42:17 +00:00
|
|
|
if (zfcp_fsf_req_sbal_get(adapter))
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_PORT,
|
|
|
|
ZFCP_REQ_AUTO_CLEANUP,
|
2009-08-18 13:43:15 +00:00
|
|
|
adapter->pool.erp_req);
|
2008-10-01 10:42:17 +00:00
|
|
|
if (unlikely(IS_ERR(req))) {
|
|
|
|
retval = PTR_ERR(req);
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
sbale = zfcp_qdio_sbale_req(req);
|
|
|
|
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
|
|
|
|
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
|
|
|
|
|
|
|
|
req->handler = zfcp_fsf_close_wka_port_handler;
|
|
|
|
req->data = wka_port;
|
|
|
|
req->qtcb->header.port_handle = wka_port->handle;
|
|
|
|
|
|
|
|
zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
|
|
|
|
retval = zfcp_fsf_req_send(req);
|
|
|
|
if (retval)
|
|
|
|
zfcp_fsf_req_free(req);
|
|
|
|
out:
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_unlock_bh(&adapter->req_q_lock);
|
2008-10-01 10:42:17 +00:00
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
static void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-07-02 08:56:39 +00:00
|
|
|
struct zfcp_port *port = req->data;
|
|
|
|
struct fsf_qtcb_header *header = &req->qtcb->header;
|
2005-04-16 22:20:36 +00:00
|
|
|
struct zfcp_unit *unit;
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
|
2009-03-02 12:08:54 +00:00
|
|
|
return;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
switch (header->fsf_status) {
|
|
|
|
case FSF_PORT_HANDLE_NOT_VALID:
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_adapter_reopen(port->adapter, 0, "fscpph1", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
case FSF_ACCESS_DENIED:
|
2008-07-02 08:56:39 +00:00
|
|
|
zfcp_fsf_access_denied_port(req, port);
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
case FSF_PORT_BOXED:
|
2008-03-10 15:18:54 +00:00
|
|
|
/* can't use generic zfcp_erp_modify_port_status because
|
|
|
|
* ZFCP_STATUS_COMMON_OPEN must not be reset for the port */
|
|
|
|
atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status);
|
|
|
|
list_for_each_entry(unit, &port->unit_list_head, list)
|
|
|
|
atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN,
|
|
|
|
&unit->status);
|
2009-07-13 13:06:02 +00:00
|
|
|
zfcp_erp_port_boxed(port, "fscpph2", req);
|
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR |
|
|
|
|
ZFCP_STATUS_FSFREQ_RETRY;
|
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
case FSF_ADAPTER_STATUS_AVAILABLE:
|
|
|
|
switch (header->fsf_status_qual.word[0]) {
|
|
|
|
case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE:
|
2008-07-02 08:56:39 +00:00
|
|
|
/* fall through */
|
2005-04-16 22:20:36 +00:00
|
|
|
case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED:
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case FSF_GOOD:
|
|
|
|
/* can't use generic zfcp_erp_modify_port_status because
|
|
|
|
* ZFCP_STATUS_COMMON_OPEN must not be reset for the port
|
|
|
|
*/
|
|
|
|
atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status);
|
|
|
|
list_for_each_entry(unit, &port->unit_list_head, list)
|
2008-07-02 08:56:39 +00:00
|
|
|
atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN,
|
|
|
|
&unit->status);
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
/**
|
|
|
|
* zfcp_fsf_close_physical_port - close physical port
|
|
|
|
* @erp_action: pointer to struct zfcp_erp_action
|
|
|
|
* Returns: 0 on success
|
2005-04-16 22:20:36 +00:00
|
|
|
*/
|
2008-07-02 08:56:39 +00:00
|
|
|
int zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-10-01 10:42:16 +00:00
|
|
|
struct qdio_buffer_element *sbale;
|
2008-07-02 08:56:39 +00:00
|
|
|
struct zfcp_adapter *adapter = erp_action->adapter;
|
|
|
|
struct zfcp_fsf_req *req;
|
|
|
|
int retval = -EIO;
|
|
|
|
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_lock_bh(&adapter->req_q_lock);
|
2008-07-02 08:56:39 +00:00
|
|
|
if (zfcp_fsf_req_sbal_get(adapter))
|
2005-04-16 22:20:36 +00:00
|
|
|
goto out;
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_PHYSICAL_PORT,
|
|
|
|
ZFCP_REQ_AUTO_CLEANUP,
|
2009-08-18 13:43:15 +00:00
|
|
|
adapter->pool.erp_req);
|
2008-08-21 11:43:37 +00:00
|
|
|
if (IS_ERR(req)) {
|
2008-07-02 08:56:39 +00:00
|
|
|
retval = PTR_ERR(req);
|
|
|
|
goto out;
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
sbale = zfcp_qdio_sbale_req(req);
|
|
|
|
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
|
|
|
|
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
req->data = erp_action->port;
|
|
|
|
req->qtcb->header.port_handle = erp_action->port->handle;
|
|
|
|
req->erp_action = erp_action;
|
|
|
|
req->handler = zfcp_fsf_close_physical_port_handler;
|
|
|
|
erp_action->fsf_req = req;
|
|
|
|
|
2008-07-02 08:56:40 +00:00
|
|
|
zfcp_fsf_start_erp_timer(req);
|
2008-07-02 08:56:39 +00:00
|
|
|
retval = zfcp_fsf_req_send(req);
|
2005-04-16 22:20:36 +00:00
|
|
|
if (retval) {
|
2008-07-02 08:56:39 +00:00
|
|
|
zfcp_fsf_req_free(req);
|
2005-04-16 22:20:36 +00:00
|
|
|
erp_action->fsf_req = NULL;
|
|
|
|
}
|
2008-07-02 08:56:39 +00:00
|
|
|
out:
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_unlock_bh(&adapter->req_q_lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
static void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-07-02 08:56:39 +00:00
|
|
|
struct zfcp_adapter *adapter = req->adapter;
|
|
|
|
struct zfcp_unit *unit = req->data;
|
|
|
|
struct fsf_qtcb_header *header = &req->qtcb->header;
|
|
|
|
struct fsf_qtcb_bottom_support *bottom = &req->qtcb->bottom.support;
|
|
|
|
struct fsf_queue_designator *queue_designator =
|
|
|
|
&header->fsf_status_qual.fsf_queue_designator;
|
2005-09-13 19:51:16 +00:00
|
|
|
int exclusive, readwrite;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
|
2008-10-01 10:42:16 +00:00
|
|
|
return;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED |
|
2007-05-08 09:19:57 +00:00
|
|
|
ZFCP_STATUS_COMMON_ACCESS_BOXED |
|
2005-04-16 22:20:36 +00:00
|
|
|
ZFCP_STATUS_UNIT_SHARED |
|
|
|
|
ZFCP_STATUS_UNIT_READONLY,
|
|
|
|
&unit->status);
|
|
|
|
|
|
|
|
switch (header->fsf_status) {
|
|
|
|
|
|
|
|
case FSF_PORT_HANDLE_NOT_VALID:
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fsouh_1", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
/* fall through */
|
2005-04-16 22:20:36 +00:00
|
|
|
case FSF_LUN_ALREADY_OPEN:
|
|
|
|
break;
|
|
|
|
case FSF_ACCESS_DENIED:
|
2008-07-02 08:56:39 +00:00
|
|
|
zfcp_fsf_access_denied_unit(req, unit);
|
2005-04-16 22:20:36 +00:00
|
|
|
atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status);
|
2008-06-10 16:20:58 +00:00
|
|
|
atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status);
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
case FSF_PORT_BOXED:
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_port_boxed(unit->port, "fsouh_2", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR |
|
|
|
|
ZFCP_STATUS_FSFREQ_RETRY;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
case FSF_LUN_SHARING_VIOLATION:
|
2008-07-02 08:56:39 +00:00
|
|
|
if (header->fsf_status_qual.word[0])
|
2008-06-10 16:20:58 +00:00
|
|
|
dev_warn(&adapter->ccw_device->dev,
|
2008-10-01 10:42:15 +00:00
|
|
|
"LUN 0x%Lx on port 0x%Lx is already in "
|
|
|
|
"use by CSS%d, MIF Image ID %x\n",
|
2008-10-01 10:42:18 +00:00
|
|
|
(unsigned long long)unit->fcp_lun,
|
|
|
|
(unsigned long long)unit->port->wwpn,
|
2008-10-01 10:42:15 +00:00
|
|
|
queue_designator->cssid,
|
|
|
|
queue_designator->hla);
|
2008-07-02 08:56:39 +00:00
|
|
|
else
|
2008-06-10 16:20:58 +00:00
|
|
|
zfcp_act_eval_err(adapter,
|
|
|
|
header->fsf_status_qual.word[2]);
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_unit_access_denied(unit, "fsouh_3", req);
|
2005-04-16 22:20:36 +00:00
|
|
|
atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status);
|
|
|
|
atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status);
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
case FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED:
|
2008-07-02 08:56:39 +00:00
|
|
|
dev_warn(&adapter->ccw_device->dev,
|
2008-10-01 10:42:15 +00:00
|
|
|
"No handle is available for LUN "
|
|
|
|
"0x%016Lx on port 0x%016Lx\n",
|
2008-10-01 10:42:18 +00:00
|
|
|
(unsigned long long)unit->fcp_lun,
|
|
|
|
(unsigned long long)unit->port->wwpn);
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_unit_failed(unit, "fsouh_4", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
/* fall through */
|
|
|
|
case FSF_INVALID_COMMAND_OPTION:
|
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
case FSF_ADAPTER_STATUS_AVAILABLE:
|
|
|
|
switch (header->fsf_status_qual.word[0]) {
|
|
|
|
case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE:
|
2005-06-13 11:16:27 +00:00
|
|
|
zfcp_test_link(unit->port);
|
2008-07-02 08:56:39 +00:00
|
|
|
/* fall through */
|
2005-04-16 22:20:36 +00:00
|
|
|
case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED:
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case FSF_GOOD:
|
|
|
|
unit->handle = header->lun_handle;
|
|
|
|
atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status);
|
2005-09-13 19:51:16 +00:00
|
|
|
|
|
|
|
if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE) &&
|
|
|
|
(adapter->adapter_features & FSF_FEATURE_LUN_SHARING) &&
|
2009-05-15 11:18:21 +00:00
|
|
|
!zfcp_ccw_priv_sch(adapter)) {
|
2005-09-13 19:51:16 +00:00
|
|
|
exclusive = (bottom->lun_access_info &
|
|
|
|
FSF_UNIT_ACCESS_EXCLUSIVE);
|
|
|
|
readwrite = (bottom->lun_access_info &
|
|
|
|
FSF_UNIT_ACCESS_OUTBOUND_TRANSFER);
|
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
if (!exclusive)
|
|
|
|
atomic_set_mask(ZFCP_STATUS_UNIT_SHARED,
|
|
|
|
&unit->status);
|
|
|
|
|
|
|
|
if (!readwrite) {
|
|
|
|
atomic_set_mask(ZFCP_STATUS_UNIT_READONLY,
|
|
|
|
&unit->status);
|
2008-07-02 08:56:39 +00:00
|
|
|
dev_info(&adapter->ccw_device->dev,
|
2008-10-01 10:42:15 +00:00
|
|
|
"SCSI device at LUN 0x%016Lx on port "
|
|
|
|
"0x%016Lx opened read-only\n",
|
2008-10-01 10:42:18 +00:00
|
|
|
(unsigned long long)unit->fcp_lun,
|
|
|
|
(unsigned long long)unit->port->wwpn);
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
if (exclusive && !readwrite) {
|
2008-07-02 08:56:39 +00:00
|
|
|
dev_err(&adapter->ccw_device->dev,
|
2008-10-01 10:42:15 +00:00
|
|
|
"Exclusive read-only access not "
|
|
|
|
"supported (unit 0x%016Lx, "
|
|
|
|
"port 0x%016Lx)\n",
|
2008-10-01 10:42:18 +00:00
|
|
|
(unsigned long long)unit->fcp_lun,
|
|
|
|
(unsigned long long)unit->port->wwpn);
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_unit_failed(unit, "fsouh_5", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_unit_shutdown(unit, 0, "fsouh_6", req);
|
2005-04-16 22:20:36 +00:00
|
|
|
} else if (!exclusive && readwrite) {
|
2008-07-02 08:56:39 +00:00
|
|
|
dev_err(&adapter->ccw_device->dev,
|
2008-10-01 10:42:15 +00:00
|
|
|
"Shared read-write access not "
|
|
|
|
"supported (unit 0x%016Lx, port "
|
2008-12-19 15:56:52 +00:00
|
|
|
"0x%016Lx)\n",
|
2008-10-01 10:42:18 +00:00
|
|
|
(unsigned long long)unit->fcp_lun,
|
|
|
|
(unsigned long long)unit->port->wwpn);
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_unit_failed(unit, "fsouh_7", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_unit_shutdown(unit, 0, "fsouh_8", req);
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
/**
|
|
|
|
* zfcp_fsf_open_unit - open unit
|
|
|
|
* @erp_action: pointer to struct zfcp_erp_action
|
|
|
|
* Returns: 0 on success, error otherwise
|
2005-04-16 22:20:36 +00:00
|
|
|
*/
|
2008-07-02 08:56:39 +00:00
|
|
|
int zfcp_fsf_open_unit(struct zfcp_erp_action *erp_action)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-10-01 10:42:16 +00:00
|
|
|
struct qdio_buffer_element *sbale;
|
2008-07-02 08:56:39 +00:00
|
|
|
struct zfcp_adapter *adapter = erp_action->adapter;
|
|
|
|
struct zfcp_fsf_req *req;
|
|
|
|
int retval = -EIO;
|
|
|
|
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_lock_bh(&adapter->req_q_lock);
|
2008-07-02 08:56:39 +00:00
|
|
|
if (zfcp_fsf_req_sbal_get(adapter))
|
2005-04-16 22:20:36 +00:00
|
|
|
goto out;
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
req = zfcp_fsf_req_create(adapter, FSF_QTCB_OPEN_LUN,
|
|
|
|
ZFCP_REQ_AUTO_CLEANUP,
|
2009-08-18 13:43:15 +00:00
|
|
|
adapter->pool.erp_req);
|
2008-08-21 11:43:37 +00:00
|
|
|
if (IS_ERR(req)) {
|
2008-07-02 08:56:39 +00:00
|
|
|
retval = PTR_ERR(req);
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
sbale = zfcp_qdio_sbale_req(req);
|
2005-04-16 22:20:36 +00:00
|
|
|
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
|
|
|
|
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
req->qtcb->header.port_handle = erp_action->port->handle;
|
|
|
|
req->qtcb->bottom.support.fcp_lun = erp_action->unit->fcp_lun;
|
|
|
|
req->handler = zfcp_fsf_open_unit_handler;
|
|
|
|
req->data = erp_action->unit;
|
|
|
|
req->erp_action = erp_action;
|
|
|
|
erp_action->fsf_req = req;
|
|
|
|
|
|
|
|
if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE))
|
|
|
|
req->qtcb->bottom.support.option = FSF_OPEN_LUN_SUPPRESS_BOXING;
|
|
|
|
|
2008-07-02 08:56:40 +00:00
|
|
|
zfcp_fsf_start_erp_timer(req);
|
2008-07-02 08:56:39 +00:00
|
|
|
retval = zfcp_fsf_req_send(req);
|
2005-04-16 22:20:36 +00:00
|
|
|
if (retval) {
|
2008-07-02 08:56:39 +00:00
|
|
|
zfcp_fsf_req_free(req);
|
2005-04-16 22:20:36 +00:00
|
|
|
erp_action->fsf_req = NULL;
|
|
|
|
}
|
2008-07-02 08:56:39 +00:00
|
|
|
out:
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_unlock_bh(&adapter->req_q_lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
static void zfcp_fsf_close_unit_handler(struct zfcp_fsf_req *req)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-07-02 08:56:39 +00:00
|
|
|
struct zfcp_unit *unit = req->data;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
|
2008-10-01 10:42:16 +00:00
|
|
|
return;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
switch (req->qtcb->header.fsf_status) {
|
2005-04-16 22:20:36 +00:00
|
|
|
case FSF_PORT_HANDLE_NOT_VALID:
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fscuh_1", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
case FSF_LUN_HANDLE_NOT_VALID:
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_port_reopen(unit->port, 0, "fscuh_2", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
case FSF_PORT_BOXED:
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_port_boxed(unit->port, "fscuh_3", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR |
|
|
|
|
ZFCP_STATUS_FSFREQ_RETRY;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
case FSF_ADAPTER_STATUS_AVAILABLE:
|
2008-07-02 08:56:39 +00:00
|
|
|
switch (req->qtcb->header.fsf_status_qual.word[0]) {
|
2005-04-16 22:20:36 +00:00
|
|
|
case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE:
|
2005-06-13 11:16:27 +00:00
|
|
|
zfcp_test_link(unit->port);
|
2008-07-02 08:56:39 +00:00
|
|
|
/* fall through */
|
2005-04-16 22:20:36 +00:00
|
|
|
case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED:
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case FSF_GOOD:
|
|
|
|
atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
2008-07-02 08:56:39 +00:00
|
|
|
* zfcp_fsf_close_unit - close zfcp unit
|
|
|
|
* @erp_action: pointer to struct zfcp_unit
|
|
|
|
* Returns: 0 on success, error otherwise
|
2005-04-16 22:20:36 +00:00
|
|
|
*/
|
2008-07-02 08:56:39 +00:00
|
|
|
int zfcp_fsf_close_unit(struct zfcp_erp_action *erp_action)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-10-01 10:42:16 +00:00
|
|
|
struct qdio_buffer_element *sbale;
|
2008-07-02 08:56:39 +00:00
|
|
|
struct zfcp_adapter *adapter = erp_action->adapter;
|
|
|
|
struct zfcp_fsf_req *req;
|
|
|
|
int retval = -EIO;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_lock_bh(&adapter->req_q_lock);
|
2008-07-02 08:56:39 +00:00
|
|
|
if (zfcp_fsf_req_sbal_get(adapter))
|
2005-04-16 22:20:36 +00:00
|
|
|
goto out;
|
2008-07-02 08:56:39 +00:00
|
|
|
req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_LUN,
|
|
|
|
ZFCP_REQ_AUTO_CLEANUP,
|
2009-08-18 13:43:15 +00:00
|
|
|
adapter->pool.erp_req);
|
2008-08-21 11:43:37 +00:00
|
|
|
if (IS_ERR(req)) {
|
2008-07-02 08:56:39 +00:00
|
|
|
retval = PTR_ERR(req);
|
|
|
|
goto out;
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
sbale = zfcp_qdio_sbale_req(req);
|
|
|
|
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
|
2005-04-16 22:20:36 +00:00
|
|
|
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
req->qtcb->header.port_handle = erp_action->port->handle;
|
|
|
|
req->qtcb->header.lun_handle = erp_action->unit->handle;
|
|
|
|
req->handler = zfcp_fsf_close_unit_handler;
|
|
|
|
req->data = erp_action->unit;
|
|
|
|
req->erp_action = erp_action;
|
|
|
|
erp_action->fsf_req = req;
|
2007-12-20 11:30:27 +00:00
|
|
|
|
2008-07-02 08:56:40 +00:00
|
|
|
zfcp_fsf_start_erp_timer(req);
|
2008-07-02 08:56:39 +00:00
|
|
|
retval = zfcp_fsf_req_send(req);
|
|
|
|
if (retval) {
|
|
|
|
zfcp_fsf_req_free(req);
|
|
|
|
erp_action->fsf_req = NULL;
|
|
|
|
}
|
|
|
|
out:
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_unlock_bh(&adapter->req_q_lock);
|
2008-07-02 08:56:39 +00:00
|
|
|
return retval;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2008-05-06 09:00:05 +00:00
|
|
|
static void zfcp_fsf_update_lat(struct fsf_latency_record *lat_rec, u32 lat)
|
|
|
|
{
|
|
|
|
lat_rec->sum += lat;
|
2008-07-02 08:56:39 +00:00
|
|
|
lat_rec->min = min(lat_rec->min, lat);
|
|
|
|
lat_rec->max = max(lat_rec->max, lat);
|
2008-05-06 09:00:05 +00:00
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
static void zfcp_fsf_req_latency(struct zfcp_fsf_req *req)
|
2008-05-06 09:00:05 +00:00
|
|
|
{
|
|
|
|
struct fsf_qual_latency_info *lat_inf;
|
|
|
|
struct latency_cont *lat;
|
2008-07-02 08:56:39 +00:00
|
|
|
struct zfcp_unit *unit = req->unit;
|
2008-05-06 09:00:05 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
lat_inf = &req->qtcb->prefix.prot_status_qual.latency_info;
|
2008-05-06 09:00:05 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
switch (req->qtcb->bottom.io.data_direction) {
|
2008-05-06 09:00:05 +00:00
|
|
|
case FSF_DATADIR_READ:
|
|
|
|
lat = &unit->latencies.read;
|
|
|
|
break;
|
|
|
|
case FSF_DATADIR_WRITE:
|
|
|
|
lat = &unit->latencies.write;
|
|
|
|
break;
|
|
|
|
case FSF_DATADIR_CMND:
|
|
|
|
lat = &unit->latencies.cmd;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2009-03-02 12:08:57 +00:00
|
|
|
spin_lock(&unit->latencies.lock);
|
2008-05-06 09:00:05 +00:00
|
|
|
zfcp_fsf_update_lat(&lat->channel, lat_inf->channel_lat);
|
|
|
|
zfcp_fsf_update_lat(&lat->fabric, lat_inf->fabric_lat);
|
|
|
|
lat->counter++;
|
2009-03-02 12:08:57 +00:00
|
|
|
spin_unlock(&unit->latencies.lock);
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2008-10-16 06:23:39 +00:00
|
|
|
#ifdef CONFIG_BLK_DEV_IO_TRACE
|
|
|
|
static void zfcp_fsf_trace_latency(struct zfcp_fsf_req *fsf_req)
|
|
|
|
{
|
|
|
|
struct fsf_qual_latency_info *lat_inf;
|
|
|
|
struct scsi_cmnd *scsi_cmnd = (struct scsi_cmnd *)fsf_req->data;
|
|
|
|
struct request *req = scsi_cmnd->request;
|
|
|
|
struct zfcp_blk_drv_data trace;
|
|
|
|
int ticks = fsf_req->adapter->timer_ticks;
|
|
|
|
|
|
|
|
trace.flags = 0;
|
|
|
|
trace.magic = ZFCP_BLK_DRV_DATA_MAGIC;
|
|
|
|
if (fsf_req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA) {
|
|
|
|
trace.flags |= ZFCP_BLK_LAT_VALID;
|
|
|
|
lat_inf = &fsf_req->qtcb->prefix.prot_status_qual.latency_info;
|
|
|
|
trace.channel_lat = lat_inf->channel_lat * ticks;
|
|
|
|
trace.fabric_lat = lat_inf->fabric_lat * ticks;
|
|
|
|
}
|
|
|
|
if (fsf_req->status & ZFCP_STATUS_FSFREQ_ERROR)
|
|
|
|
trace.flags |= ZFCP_BLK_REQ_ERROR;
|
|
|
|
trace.inb_usage = fsf_req->qdio_inb_usage;
|
|
|
|
trace.outb_usage = fsf_req->qdio_outb_usage;
|
|
|
|
|
|
|
|
blk_add_driver_data(req->q, req, &trace, sizeof(trace));
|
|
|
|
}
|
|
|
|
#else
|
|
|
|
static inline void zfcp_fsf_trace_latency(struct zfcp_fsf_req *fsf_req)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
static void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-11-26 17:07:39 +00:00
|
|
|
struct scsi_cmnd *scpnt;
|
2005-04-16 22:20:36 +00:00
|
|
|
struct fcp_rsp_iu *fcp_rsp_iu = (struct fcp_rsp_iu *)
|
2008-07-02 08:56:39 +00:00
|
|
|
&(req->qtcb->bottom.io.fcp_rsp);
|
2005-04-16 22:20:36 +00:00
|
|
|
u32 sns_len;
|
2008-07-02 08:56:36 +00:00
|
|
|
char *fcp_rsp_info = (unsigned char *) &fcp_rsp_iu[1];
|
2005-04-16 22:20:36 +00:00
|
|
|
unsigned long flags;
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
read_lock_irqsave(&req->adapter->abort_lock, flags);
|
|
|
|
|
2008-11-26 17:07:39 +00:00
|
|
|
scpnt = req->data;
|
|
|
|
if (unlikely(!scpnt)) {
|
|
|
|
read_unlock_irqrestore(&req->adapter->abort_lock, flags);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ABORTED)) {
|
2008-07-02 08:56:35 +00:00
|
|
|
set_host_byte(scpnt, DID_SOFT_ERROR);
|
2005-04-16 22:20:36 +00:00
|
|
|
goto skip_fsfstatus;
|
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) {
|
2008-07-02 08:56:35 +00:00
|
|
|
set_host_byte(scpnt, DID_ERROR);
|
2005-04-16 22:20:36 +00:00
|
|
|
goto skip_fsfstatus;
|
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:35 +00:00
|
|
|
set_msg_byte(scpnt, COMMAND_COMPLETE);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
scpnt->result |= fcp_rsp_iu->scsi_status;
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA)
|
|
|
|
zfcp_fsf_req_latency(req);
|
2008-05-06 09:00:05 +00:00
|
|
|
|
2008-10-16 06:23:39 +00:00
|
|
|
zfcp_fsf_trace_latency(req);
|
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
if (unlikely(fcp_rsp_iu->validity.bits.fcp_rsp_len_valid)) {
|
2008-07-02 08:56:39 +00:00
|
|
|
if (fcp_rsp_info[3] == RSP_CODE_GOOD)
|
2008-07-02 08:56:35 +00:00
|
|
|
set_host_byte(scpnt, DID_OK);
|
2008-07-02 08:56:39 +00:00
|
|
|
else {
|
2008-07-02 08:56:35 +00:00
|
|
|
set_host_byte(scpnt, DID_ERROR);
|
2005-04-11 04:04:28 +00:00
|
|
|
goto skip_fsfstatus;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (unlikely(fcp_rsp_iu->validity.bits.fcp_sns_len_valid)) {
|
2008-07-02 08:56:39 +00:00
|
|
|
sns_len = FSF_FCP_RSP_SIZE - sizeof(struct fcp_rsp_iu) +
|
|
|
|
fcp_rsp_iu->fcp_rsp_len;
|
2005-04-16 22:20:36 +00:00
|
|
|
sns_len = min(sns_len, (u32) SCSI_SENSE_BUFFERSIZE);
|
|
|
|
sns_len = min(sns_len, fcp_rsp_iu->fcp_sns_len);
|
|
|
|
|
2008-01-27 03:41:50 +00:00
|
|
|
memcpy(scpnt->sense_buffer,
|
2005-04-16 22:20:36 +00:00
|
|
|
zfcp_get_fcp_sns_info_ptr(fcp_rsp_iu), sns_len);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (unlikely(fcp_rsp_iu->validity.bits.fcp_resid_under)) {
|
2007-07-29 07:46:28 +00:00
|
|
|
scsi_set_resid(scpnt, fcp_rsp_iu->fcp_resid);
|
|
|
|
if (scsi_bufflen(scpnt) - scsi_get_resid(scpnt) <
|
|
|
|
scpnt->underflow)
|
2008-07-02 08:56:35 +00:00
|
|
|
set_host_byte(scpnt, DID_ERROR);
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
2008-07-02 08:56:39 +00:00
|
|
|
skip_fsfstatus:
|
2005-09-13 19:50:38 +00:00
|
|
|
if (scpnt->result != 0)
|
2008-07-02 08:56:39 +00:00
|
|
|
zfcp_scsi_dbf_event_result("erro", 3, req->adapter, scpnt, req);
|
2005-09-13 19:50:38 +00:00
|
|
|
else if (scpnt->retries > 0)
|
2008-07-02 08:56:39 +00:00
|
|
|
zfcp_scsi_dbf_event_result("retr", 4, req->adapter, scpnt, req);
|
2005-09-13 19:50:38 +00:00
|
|
|
else
|
2008-07-02 08:56:39 +00:00
|
|
|
zfcp_scsi_dbf_event_result("norm", 6, req->adapter, scpnt, req);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
scpnt->host_scribble = NULL;
|
|
|
|
(scpnt->scsi_done) (scpnt);
|
|
|
|
/*
|
|
|
|
* We must hold this lock until scsi_done has been called.
|
|
|
|
* Otherwise we may call scsi_done after abort regarding this
|
|
|
|
* command has completed.
|
|
|
|
* Note: scsi_done must not block!
|
|
|
|
*/
|
2008-07-02 08:56:39 +00:00
|
|
|
read_unlock_irqrestore(&req->adapter->abort_lock, flags);
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
static void zfcp_fsf_send_fcp_ctm_handler(struct zfcp_fsf_req *req)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
|
|
|
struct fcp_rsp_iu *fcp_rsp_iu = (struct fcp_rsp_iu *)
|
2008-07-02 08:56:39 +00:00
|
|
|
&(req->qtcb->bottom.io.fcp_rsp);
|
2008-07-02 08:56:36 +00:00
|
|
|
char *fcp_rsp_info = (unsigned char *) &fcp_rsp_iu[1];
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if ((fcp_rsp_info[3] != RSP_CODE_GOOD) ||
|
|
|
|
(req->status & ZFCP_STATUS_FSFREQ_ERROR))
|
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_TMFUNCFAILED;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *req)
|
|
|
|
{
|
|
|
|
struct zfcp_unit *unit;
|
|
|
|
struct fsf_qtcb_header *header = &req->qtcb->header;
|
|
|
|
|
|
|
|
if (unlikely(req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT))
|
|
|
|
unit = req->data;
|
|
|
|
else
|
|
|
|
unit = req->unit;
|
|
|
|
|
|
|
|
if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR))
|
2005-04-16 22:20:36 +00:00
|
|
|
goto skip_fsfstatus;
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
switch (header->fsf_status) {
|
|
|
|
case FSF_HANDLE_MISMATCH:
|
|
|
|
case FSF_PORT_HANDLE_NOT_VALID:
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fssfch1", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
|
|
|
break;
|
|
|
|
case FSF_FCPLUN_NOT_VALID:
|
|
|
|
case FSF_LUN_HANDLE_NOT_VALID:
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_port_reopen(unit->port, 0, "fssfch2", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
2008-07-02 08:56:39 +00:00
|
|
|
case FSF_SERVICE_CLASS_NOT_SUPPORTED:
|
|
|
|
zfcp_fsf_class_not_supp(req);
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
2008-07-02 08:56:39 +00:00
|
|
|
case FSF_ACCESS_DENIED:
|
|
|
|
zfcp_fsf_access_denied_unit(req, unit);
|
|
|
|
break;
|
|
|
|
case FSF_DIRECTION_INDICATOR_NOT_VALID:
|
|
|
|
dev_err(&req->adapter->ccw_device->dev,
|
2008-10-01 10:42:15 +00:00
|
|
|
"Incorrect direction %d, unit 0x%016Lx on port "
|
|
|
|
"0x%016Lx closed\n",
|
2008-07-02 08:56:39 +00:00
|
|
|
req->qtcb->bottom.io.data_direction,
|
2008-10-01 10:42:18 +00:00
|
|
|
(unsigned long long)unit->fcp_lun,
|
|
|
|
(unsigned long long)unit->port->wwpn);
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch3",
|
|
|
|
req);
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
|
|
|
break;
|
|
|
|
case FSF_CMND_LENGTH_NOT_VALID:
|
|
|
|
dev_err(&req->adapter->ccw_device->dev,
|
2008-10-01 10:42:15 +00:00
|
|
|
"Incorrect CDB length %d, unit 0x%016Lx on "
|
|
|
|
"port 0x%016Lx closed\n",
|
2008-07-02 08:56:39 +00:00
|
|
|
req->qtcb->bottom.io.fcp_cmnd_length,
|
2008-10-01 10:42:18 +00:00
|
|
|
(unsigned long long)unit->fcp_lun,
|
|
|
|
(unsigned long long)unit->port->wwpn);
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch4",
|
|
|
|
req);
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
|
|
|
break;
|
|
|
|
case FSF_PORT_BOXED:
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_port_boxed(unit->port, "fssfch5", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR |
|
|
|
|
ZFCP_STATUS_FSFREQ_RETRY;
|
|
|
|
break;
|
|
|
|
case FSF_LUN_BOXED:
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_unit_boxed(unit, "fssfch6", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR |
|
|
|
|
ZFCP_STATUS_FSFREQ_RETRY;
|
|
|
|
break;
|
|
|
|
case FSF_ADAPTER_STATUS_AVAILABLE:
|
|
|
|
if (header->fsf_status_qual.word[0] ==
|
|
|
|
FSF_SQ_INVOKE_LINK_TEST_PROCEDURE)
|
|
|
|
zfcp_test_link(unit->port);
|
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_ERROR;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
}
|
2008-07-02 08:56:39 +00:00
|
|
|
skip_fsfstatus:
|
|
|
|
if (req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)
|
|
|
|
zfcp_fsf_send_fcp_ctm_handler(req);
|
|
|
|
else {
|
|
|
|
zfcp_fsf_send_fcp_command_task_handler(req);
|
|
|
|
req->unit = NULL;
|
|
|
|
zfcp_unit_put(unit);
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2008-10-01 10:42:18 +00:00
|
|
|
static void zfcp_set_fcp_dl(struct fcp_cmnd_iu *fcp_cmd, u32 fcp_dl)
|
|
|
|
{
|
|
|
|
u32 *fcp_dl_ptr;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* fcp_dl_addr = start address of fcp_cmnd structure +
|
|
|
|
* size of fixed part + size of dynamically sized add_dcp_cdb field
|
|
|
|
* SEE FCP-2 documentation
|
|
|
|
*/
|
|
|
|
fcp_dl_ptr = (u32 *) ((unsigned char *) &fcp_cmd[1] +
|
|
|
|
(fcp_cmd->add_fcp_cdb_length << 2));
|
|
|
|
*fcp_dl_ptr = fcp_dl;
|
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
/**
|
|
|
|
* zfcp_fsf_send_fcp_command_task - initiate an FCP command (for a SCSI command)
|
|
|
|
* @unit: unit where command is sent to
|
|
|
|
* @scsi_cmnd: scsi command to be sent
|
2005-04-16 22:20:36 +00:00
|
|
|
*/
|
2009-03-02 12:09:00 +00:00
|
|
|
int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit,
|
|
|
|
struct scsi_cmnd *scsi_cmnd)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-07-02 08:56:39 +00:00
|
|
|
struct zfcp_fsf_req *req;
|
|
|
|
struct fcp_cmnd_iu *fcp_cmnd_iu;
|
2009-05-15 11:18:17 +00:00
|
|
|
unsigned int sbtype = SBAL_FLAGS0_TYPE_READ;
|
2008-07-02 08:56:39 +00:00
|
|
|
int real_bytes, retval = -EIO;
|
2009-03-02 12:09:00 +00:00
|
|
|
struct zfcp_adapter *adapter = unit->port->adapter;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (unlikely(!(atomic_read(&unit->status) &
|
|
|
|
ZFCP_STATUS_COMMON_UNBLOCKED)))
|
|
|
|
return -EBUSY;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_lock(&adapter->req_q_lock);
|
2009-03-02 12:09:01 +00:00
|
|
|
if (atomic_read(&adapter->req_q.count) <= 0) {
|
|
|
|
atomic_inc(&adapter->qdio_outb_full);
|
2008-07-02 08:56:39 +00:00
|
|
|
goto out;
|
2009-03-02 12:09:01 +00:00
|
|
|
}
|
2009-03-02 12:09:00 +00:00
|
|
|
req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND,
|
|
|
|
ZFCP_REQ_AUTO_CLEANUP,
|
2009-08-18 13:43:15 +00:00
|
|
|
adapter->pool.scsi_req);
|
2008-08-21 11:43:37 +00:00
|
|
|
if (IS_ERR(req)) {
|
2008-07-02 08:56:39 +00:00
|
|
|
retval = PTR_ERR(req);
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
zfcp_unit_get(unit);
|
|
|
|
req->unit = unit;
|
|
|
|
req->data = scsi_cmnd;
|
|
|
|
req->handler = zfcp_fsf_send_fcp_command_handler;
|
|
|
|
req->qtcb->header.lun_handle = unit->handle;
|
|
|
|
req->qtcb->header.port_handle = unit->port->handle;
|
|
|
|
req->qtcb->bottom.io.service_class = FSF_CLASS_3;
|
|
|
|
|
|
|
|
scsi_cmnd->host_scribble = (unsigned char *) req->req_id;
|
|
|
|
|
|
|
|
fcp_cmnd_iu = (struct fcp_cmnd_iu *) &(req->qtcb->bottom.io.fcp_cmnd);
|
|
|
|
fcp_cmnd_iu->fcp_lun = unit->fcp_lun;
|
|
|
|
/*
|
|
|
|
* set depending on data direction:
|
|
|
|
* data direction bits in SBALE (SB Type)
|
|
|
|
* data direction bits in QTCB
|
|
|
|
* data direction bits in FCP_CMND IU
|
|
|
|
*/
|
|
|
|
switch (scsi_cmnd->sc_data_direction) {
|
|
|
|
case DMA_NONE:
|
|
|
|
req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
2008-07-02 08:56:39 +00:00
|
|
|
case DMA_FROM_DEVICE:
|
|
|
|
req->qtcb->bottom.io.data_direction = FSF_DATADIR_READ;
|
|
|
|
fcp_cmnd_iu->rddata = 1;
|
|
|
|
break;
|
|
|
|
case DMA_TO_DEVICE:
|
|
|
|
req->qtcb->bottom.io.data_direction = FSF_DATADIR_WRITE;
|
|
|
|
sbtype = SBAL_FLAGS0_TYPE_WRITE;
|
|
|
|
fcp_cmnd_iu->wddata = 1;
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
2008-07-02 08:56:39 +00:00
|
|
|
case DMA_BIDIRECTIONAL:
|
|
|
|
goto failed_scsi_cmnd;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (likely((scsi_cmnd->device->simple_tags) ||
|
|
|
|
((atomic_read(&unit->status) & ZFCP_STATUS_UNIT_READONLY) &&
|
|
|
|
(atomic_read(&unit->status) & ZFCP_STATUS_UNIT_SHARED))))
|
|
|
|
fcp_cmnd_iu->task_attribute = SIMPLE_Q;
|
|
|
|
else
|
|
|
|
fcp_cmnd_iu->task_attribute = UNTAGGED;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (unlikely(scsi_cmnd->cmd_len > FCP_CDB_LENGTH))
|
|
|
|
fcp_cmnd_iu->add_fcp_cdb_length =
|
|
|
|
(scsi_cmnd->cmd_len - FCP_CDB_LENGTH) >> 2;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
memcpy(fcp_cmnd_iu->fcp_cdb, scsi_cmnd->cmnd, scsi_cmnd->cmd_len);
|
2008-06-10 16:20:55 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
req->qtcb->bottom.io.fcp_cmnd_length = sizeof(struct fcp_cmnd_iu) +
|
2008-10-01 10:42:18 +00:00
|
|
|
fcp_cmnd_iu->add_fcp_cdb_length + sizeof(u32);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
real_bytes = zfcp_qdio_sbals_from_sg(req, sbtype,
|
|
|
|
scsi_sglist(scsi_cmnd),
|
|
|
|
FSF_MAX_SBALS_PER_REQ);
|
|
|
|
if (unlikely(real_bytes < 0)) {
|
2009-05-15 11:18:17 +00:00
|
|
|
if (req->sbal_number >= FSF_MAX_SBALS_PER_REQ) {
|
2008-07-02 08:56:39 +00:00
|
|
|
dev_err(&adapter->ccw_device->dev,
|
2008-10-01 10:42:15 +00:00
|
|
|
"Oversize data package, unit 0x%016Lx "
|
|
|
|
"on port 0x%016Lx closed\n",
|
2008-10-01 10:42:18 +00:00
|
|
|
(unsigned long long)unit->fcp_lun,
|
|
|
|
(unsigned long long)unit->port->wwpn);
|
2009-03-02 12:09:04 +00:00
|
|
|
zfcp_erp_unit_shutdown(unit, 0, "fssfct1", req);
|
2008-07-02 08:56:39 +00:00
|
|
|
retval = -EINVAL;
|
|
|
|
}
|
|
|
|
goto failed_scsi_cmnd;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
zfcp_set_fcp_dl(fcp_cmnd_iu, real_bytes);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
retval = zfcp_fsf_req_send(req);
|
|
|
|
if (unlikely(retval))
|
|
|
|
goto failed_scsi_cmnd;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
goto out;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
failed_scsi_cmnd:
|
|
|
|
zfcp_unit_put(unit);
|
|
|
|
zfcp_fsf_req_free(req);
|
|
|
|
scsi_cmnd->host_scribble = NULL;
|
|
|
|
out:
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_unlock(&adapter->req_q_lock);
|
2008-07-02 08:56:39 +00:00
|
|
|
return retval;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
2008-07-02 08:56:39 +00:00
|
|
|
* zfcp_fsf_send_fcp_ctm - send SCSI task management command
|
|
|
|
* @unit: pointer to struct zfcp_unit
|
|
|
|
* @tm_flags: unsigned byte for task management flags
|
|
|
|
* Returns: on success pointer to struct fsf_req, NULL otherwise
|
2005-04-16 22:20:36 +00:00
|
|
|
*/
|
2009-03-02 12:09:00 +00:00
|
|
|
struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *unit, u8 tm_flags)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-10-01 10:42:16 +00:00
|
|
|
struct qdio_buffer_element *sbale;
|
2008-07-02 08:56:39 +00:00
|
|
|
struct zfcp_fsf_req *req = NULL;
|
|
|
|
struct fcp_cmnd_iu *fcp_cmnd_iu;
|
2009-03-02 12:09:00 +00:00
|
|
|
struct zfcp_adapter *adapter = unit->port->adapter;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (unlikely(!(atomic_read(&unit->status) &
|
|
|
|
ZFCP_STATUS_COMMON_UNBLOCKED)))
|
|
|
|
return NULL;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2009-03-02 12:08:59 +00:00
|
|
|
spin_lock_bh(&adapter->req_q_lock);
|
|
|
|
if (zfcp_fsf_req_sbal_get(adapter))
|
2008-07-02 08:56:39 +00:00
|
|
|
goto out;
|
2009-03-02 12:09:00 +00:00
|
|
|
req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND, 0,
|
2009-08-18 13:43:15 +00:00
|
|
|
adapter->pool.scsi_req);
|
2008-11-26 17:07:37 +00:00
|
|
|
if (IS_ERR(req)) {
|
|
|
|
req = NULL;
|
2008-07-02 08:56:39 +00:00
|
|
|
goto out;
|
2008-11-26 17:07:37 +00:00
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
req->status |= ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT;
|
|
|
|
req->data = unit;
|
|
|
|
req->handler = zfcp_fsf_send_fcp_command_handler;
|
|
|
|
req->qtcb->header.lun_handle = unit->handle;
|
|
|
|
req->qtcb->header.port_handle = unit->port->handle;
|
|
|
|
req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND;
|
|
|
|
req->qtcb->bottom.io.service_class = FSF_CLASS_3;
|
|
|
|
req->qtcb->bottom.io.fcp_cmnd_length = sizeof(struct fcp_cmnd_iu) +
|
2008-10-01 10:42:18 +00:00
|
|
|
sizeof(u32);
|
2008-07-02 08:56:39 +00:00
|
|
|
|
|
|
|
sbale = zfcp_qdio_sbale_req(req);
|
|
|
|
sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE;
|
|
|
|
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
fcp_cmnd_iu = (struct fcp_cmnd_iu *) &req->qtcb->bottom.io.fcp_cmnd;
|
|
|
|
fcp_cmnd_iu->fcp_lun = unit->fcp_lun;
|
|
|
|
fcp_cmnd_iu->task_management_flags = tm_flags;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT);
|
|
|
|
if (!zfcp_fsf_req_send(req))
|
|
|
|
goto out;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
zfcp_fsf_req_free(req);
|
|
|
|
req = NULL;
|
|
|
|
out:
|
2009-03-02 12:08:59 +00:00
|
|
|
spin_unlock_bh(&adapter->req_q_lock);
|
2008-07-02 08:56:39 +00:00
|
|
|
return req;
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
static void zfcp_fsf_control_file_handler(struct zfcp_fsf_req *req)
|
|
|
|
{
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
/**
|
|
|
|
* zfcp_fsf_control_file - control file upload/download
|
|
|
|
* @adapter: pointer to struct zfcp_adapter
|
|
|
|
* @fsf_cfdc: pointer to struct zfcp_fsf_cfdc
|
|
|
|
* Returns: on success pointer to struct zfcp_fsf_req, NULL otherwise
|
2005-04-16 22:20:36 +00:00
|
|
|
*/
|
2008-07-02 08:56:39 +00:00
|
|
|
struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter,
|
|
|
|
struct zfcp_fsf_cfdc *fsf_cfdc)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2008-10-01 10:42:16 +00:00
|
|
|
struct qdio_buffer_element *sbale;
|
2008-07-02 08:56:39 +00:00
|
|
|
struct zfcp_fsf_req *req = NULL;
|
|
|
|
struct fsf_qtcb_bottom_support *bottom;
|
|
|
|
int direction, retval = -EIO, bytes;
|
|
|
|
|
|
|
|
if (!(adapter->adapter_features & FSF_FEATURE_CFDC))
|
|
|
|
return ERR_PTR(-EOPNOTSUPP);
|
|
|
|
|
|
|
|
switch (fsf_cfdc->command) {
|
|
|
|
case FSF_QTCB_DOWNLOAD_CONTROL_FILE:
|
|
|
|
direction = SBAL_FLAGS0_TYPE_WRITE;
|
|
|
|
break;
|
|
|
|
case FSF_QTCB_UPLOAD_CONTROL_FILE:
|
|
|
|
direction = SBAL_FLAGS0_TYPE_READ;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_lock_bh(&adapter->req_q_lock);
|
2008-07-02 08:56:39 +00:00
|
|
|
if (zfcp_fsf_req_sbal_get(adapter))
|
|
|
|
goto out;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
req = zfcp_fsf_req_create(adapter, fsf_cfdc->command, 0, NULL);
|
2008-08-21 11:43:37 +00:00
|
|
|
if (IS_ERR(req)) {
|
2008-07-02 08:56:39 +00:00
|
|
|
retval = -EPERM;
|
|
|
|
goto out;
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
req->handler = zfcp_fsf_control_file_handler;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
sbale = zfcp_qdio_sbale_req(req);
|
|
|
|
sbale[0].flags |= direction;
|
2005-09-13 19:50:38 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
bottom = &req->qtcb->bottom.support;
|
|
|
|
bottom->operation_subtype = FSF_CFDC_OPERATION_SUBTYPE;
|
|
|
|
bottom->option = fsf_cfdc->option;
|
2005-09-13 19:50:38 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
bytes = zfcp_qdio_sbals_from_sg(req, direction, fsf_cfdc->sg,
|
|
|
|
FSF_MAX_SBALS_PER_REQ);
|
|
|
|
if (bytes != ZFCP_CFDC_MAX_SIZE) {
|
|
|
|
zfcp_fsf_req_free(req);
|
|
|
|
goto out;
|
|
|
|
}
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
|
|
|
|
retval = zfcp_fsf_req_send(req);
|
|
|
|
out:
|
2008-10-01 10:42:20 +00:00
|
|
|
spin_unlock_bh(&adapter->req_q_lock);
|
2005-09-13 19:50:38 +00:00
|
|
|
|
2008-07-02 08:56:39 +00:00
|
|
|
if (!retval) {
|
2009-08-18 13:43:14 +00:00
|
|
|
wait_for_completion(&req->completion);
|
2008-07-02 08:56:39 +00:00
|
|
|
return req;
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
2008-07-02 08:56:39 +00:00
|
|
|
return ERR_PTR(retval);
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
2009-08-18 13:43:13 +00:00
|
|
|
|
|
|
|
/**
|
|
|
|
* zfcp_fsf_reqid_check - validate req_id contained in SBAL returned by QDIO
|
|
|
|
* @adapter: pointer to struct zfcp_adapter
|
|
|
|
* @sbal_idx: response queue index of SBAL to be processed
|
|
|
|
*/
|
|
|
|
void zfcp_fsf_reqid_check(struct zfcp_adapter *adapter, int sbal_idx)
|
|
|
|
{
|
|
|
|
struct qdio_buffer *sbal = adapter->resp_q.sbal[sbal_idx];
|
|
|
|
struct qdio_buffer_element *sbale;
|
|
|
|
struct zfcp_fsf_req *fsf_req;
|
|
|
|
unsigned long flags, req_id;
|
|
|
|
int idx;
|
|
|
|
|
|
|
|
for (idx = 0; idx < QDIO_MAX_ELEMENTS_PER_BUFFER; idx++) {
|
|
|
|
|
|
|
|
sbale = &sbal->element[idx];
|
|
|
|
req_id = (unsigned long) sbale->addr;
|
|
|
|
spin_lock_irqsave(&adapter->req_list_lock, flags);
|
|
|
|
fsf_req = zfcp_reqlist_find(adapter, req_id);
|
|
|
|
|
|
|
|
if (!fsf_req)
|
|
|
|
/*
|
|
|
|
* Unknown request means that we have potentially memory
|
|
|
|
* corruption and must stop the machine immediately.
|
|
|
|
*/
|
|
|
|
panic("error: unknown req_id (%lx) on adapter %s.\n",
|
|
|
|
req_id, dev_name(&adapter->ccw_device->dev));
|
|
|
|
|
|
|
|
list_del(&fsf_req->list);
|
|
|
|
spin_unlock_irqrestore(&adapter->req_list_lock, flags);
|
|
|
|
|
|
|
|
fsf_req->sbal_response = sbal_idx;
|
|
|
|
fsf_req->qdio_inb_usage = atomic_read(&adapter->resp_q.count);
|
|
|
|
zfcp_fsf_req_complete(fsf_req);
|
|
|
|
|
|
|
|
if (likely(sbale->flags & SBAL_FLAGS_LAST_ENTRY))
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|