Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 2 | * zfcp device driver |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 4 | * Implementation of FSF commands. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | * |
Christof Schmitt | 615f59e | 2010-02-17 11:18:56 +0100 | [diff] [blame] | 6 | * Copyright IBM Corporation 2002, 2010 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | */ |
| 8 | |
Christof Schmitt | ecf39d4 | 2008-12-25 13:39:53 +0100 | [diff] [blame] | 9 | #define KMSG_COMPONENT "zfcp" |
| 10 | #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt |
| 11 | |
Stefan Raspl | 0997f1c | 2008-10-16 08:23:39 +0200 | [diff] [blame] | 12 | #include <linux/blktrace_api.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 13 | #include <linux/slab.h> |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 14 | #include <scsi/fc/fc_els.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | #include "zfcp_ext.h" |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 16 | #include "zfcp_fc.h" |
Christof Schmitt | dcd20e2 | 2009-08-18 15:43:08 +0200 | [diff] [blame] | 17 | #include "zfcp_dbf.h" |
Christof Schmitt | 34c2b71 | 2010-02-17 11:18:59 +0100 | [diff] [blame] | 18 | #include "zfcp_qdio.h" |
Christof Schmitt | b6bd2fb | 2010-02-17 11:18:50 +0100 | [diff] [blame] | 19 | #include "zfcp_reqlist.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | |
Christof Schmitt | 259afe2 | 2011-02-22 19:54:44 +0100 | [diff] [blame] | 21 | struct kmem_cache *zfcp_fsf_qtcb_cache; |
| 22 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 23 | static void zfcp_fsf_request_timeout_handler(unsigned long data) |
| 24 | { |
| 25 | struct zfcp_adapter *adapter = (struct zfcp_adapter *) data; |
Christof Schmitt | 339f4f4 | 2010-07-16 15:37:43 +0200 | [diff] [blame] | 26 | zfcp_qdio_siosl(adapter); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 27 | zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 28 | "fsrth_1"); |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 29 | } |
| 30 | |
| 31 | static void zfcp_fsf_start_timer(struct zfcp_fsf_req *fsf_req, |
| 32 | unsigned long timeout) |
| 33 | { |
| 34 | fsf_req->timer.function = zfcp_fsf_request_timeout_handler; |
| 35 | fsf_req->timer.data = (unsigned long) fsf_req->adapter; |
| 36 | fsf_req->timer.expires = jiffies + timeout; |
| 37 | add_timer(&fsf_req->timer); |
| 38 | } |
| 39 | |
| 40 | static void zfcp_fsf_start_erp_timer(struct zfcp_fsf_req *fsf_req) |
| 41 | { |
| 42 | BUG_ON(!fsf_req->erp_action); |
| 43 | fsf_req->timer.function = zfcp_erp_timeout_handler; |
| 44 | fsf_req->timer.data = (unsigned long) fsf_req->erp_action; |
| 45 | fsf_req->timer.expires = jiffies + 30 * HZ; |
| 46 | add_timer(&fsf_req->timer); |
| 47 | } |
| 48 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | /* association between FSF command and FSF QTCB type */ |
| 50 | static u32 fsf_qtcb_type[] = { |
| 51 | [FSF_QTCB_FCP_CMND] = FSF_IO_COMMAND, |
| 52 | [FSF_QTCB_ABORT_FCP_CMND] = FSF_SUPPORT_COMMAND, |
| 53 | [FSF_QTCB_OPEN_PORT_WITH_DID] = FSF_SUPPORT_COMMAND, |
| 54 | [FSF_QTCB_OPEN_LUN] = FSF_SUPPORT_COMMAND, |
| 55 | [FSF_QTCB_CLOSE_LUN] = FSF_SUPPORT_COMMAND, |
| 56 | [FSF_QTCB_CLOSE_PORT] = FSF_SUPPORT_COMMAND, |
| 57 | [FSF_QTCB_CLOSE_PHYSICAL_PORT] = FSF_SUPPORT_COMMAND, |
| 58 | [FSF_QTCB_SEND_ELS] = FSF_SUPPORT_COMMAND, |
| 59 | [FSF_QTCB_SEND_GENERIC] = FSF_SUPPORT_COMMAND, |
| 60 | [FSF_QTCB_EXCHANGE_CONFIG_DATA] = FSF_CONFIG_COMMAND, |
| 61 | [FSF_QTCB_EXCHANGE_PORT_DATA] = FSF_PORT_COMMAND, |
| 62 | [FSF_QTCB_DOWNLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND, |
| 63 | [FSF_QTCB_UPLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND |
| 64 | }; |
| 65 | |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 66 | static void zfcp_fsf_class_not_supp(struct zfcp_fsf_req *req) |
| 67 | { |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 68 | dev_err(&req->adapter->ccw_device->dev, "FCP device not " |
| 69 | "operational because of an unsupported FC class\n"); |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 70 | zfcp_erp_adapter_shutdown(req->adapter, 0, "fscns_1"); |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 71 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 72 | } |
| 73 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 74 | /** |
| 75 | * zfcp_fsf_req_free - free memory used by fsf request |
| 76 | * @fsf_req: pointer to struct zfcp_fsf_req |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 78 | void zfcp_fsf_req_free(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 80 | if (likely(req->pool)) { |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 81 | if (likely(req->qtcb)) |
| 82 | mempool_free(req->qtcb, req->adapter->pool.qtcb_pool); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 83 | mempool_free(req, req->pool); |
Heiko Carstens | dd52e0e | 2006-09-18 22:28:49 +0200 | [diff] [blame] | 84 | return; |
| 85 | } |
| 86 | |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 87 | if (likely(req->qtcb)) |
Christof Schmitt | 259afe2 | 2011-02-22 19:54:44 +0100 | [diff] [blame] | 88 | kmem_cache_free(zfcp_fsf_qtcb_cache, req->qtcb); |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 89 | kfree(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | } |
| 91 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 92 | static void zfcp_fsf_status_read_port_closed(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 93 | { |
Swen Schillig | ecf0c77 | 2009-11-24 16:53:58 +0100 | [diff] [blame] | 94 | unsigned long flags; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 95 | struct fsf_status_read_buffer *sr_buf = req->data; |
| 96 | struct zfcp_adapter *adapter = req->adapter; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | struct zfcp_port *port; |
Christof Schmitt | 800c0ca | 2009-11-24 16:54:12 +0100 | [diff] [blame] | 98 | int d_id = ntoh24(sr_buf->d_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | |
Swen Schillig | ecf0c77 | 2009-11-24 16:53:58 +0100 | [diff] [blame] | 100 | read_lock_irqsave(&adapter->port_list_lock, flags); |
| 101 | list_for_each_entry(port, &adapter->port_list, list) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 102 | if (port->d_id == d_id) { |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 103 | zfcp_erp_port_reopen(port, 0, "fssrpc1"); |
Swen Schillig | ecf0c77 | 2009-11-24 16:53:58 +0100 | [diff] [blame] | 104 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 105 | } |
Swen Schillig | ecf0c77 | 2009-11-24 16:53:58 +0100 | [diff] [blame] | 106 | read_unlock_irqrestore(&adapter->port_list_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | } |
| 108 | |
Swen Schillig | edaed859 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 109 | static void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req, |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 110 | struct fsf_link_down_info *link_down) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 112 | struct zfcp_adapter *adapter = req->adapter; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 114 | if (atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED) |
| 115 | return; |
| 116 | |
| 117 | atomic_set_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status); |
Christof Schmitt | 7093293 | 2009-04-17 15:08:15 +0200 | [diff] [blame] | 118 | |
Christof Schmitt | a2fa0ae | 2009-03-02 13:09:08 +0100 | [diff] [blame] | 119 | zfcp_scsi_schedule_rports_block(adapter); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 120 | |
| 121 | if (!link_down) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | goto out; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 123 | |
| 124 | switch (link_down->error_code) { |
| 125 | case FSF_PSQ_LINK_NO_LIGHT: |
| 126 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 127 | "There is no light signal from the local " |
| 128 | "fibre channel cable\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 129 | break; |
| 130 | case FSF_PSQ_LINK_WRAP_PLUG: |
| 131 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 132 | "There is a wrap plug instead of a fibre " |
| 133 | "channel cable\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 134 | break; |
| 135 | case FSF_PSQ_LINK_NO_FCP: |
| 136 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 137 | "The adjacent fibre channel node does not " |
| 138 | "support FCP\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 139 | break; |
| 140 | case FSF_PSQ_LINK_FIRMWARE_UPDATE: |
| 141 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 142 | "The FCP device is suspended because of a " |
| 143 | "firmware update\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 144 | break; |
| 145 | case FSF_PSQ_LINK_INVALID_WWPN: |
| 146 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 147 | "The FCP device detected a WWPN that is " |
| 148 | "duplicate or not valid\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 149 | break; |
| 150 | case FSF_PSQ_LINK_NO_NPIV_SUPPORT: |
| 151 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 152 | "The fibre channel fabric does not support NPIV\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 153 | break; |
| 154 | case FSF_PSQ_LINK_NO_FCP_RESOURCES: |
| 155 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 156 | "The FCP adapter cannot support more NPIV ports\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 157 | break; |
| 158 | case FSF_PSQ_LINK_NO_FABRIC_RESOURCES: |
| 159 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 160 | "The adjacent switch cannot support " |
| 161 | "more NPIV ports\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 162 | break; |
| 163 | case FSF_PSQ_LINK_FABRIC_LOGIN_UNABLE: |
| 164 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 165 | "The FCP adapter could not log in to the " |
| 166 | "fibre channel fabric\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 167 | break; |
| 168 | case FSF_PSQ_LINK_WWPN_ASSIGNMENT_CORRUPTED: |
| 169 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 170 | "The WWPN assignment file on the FCP adapter " |
| 171 | "has been damaged\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 172 | break; |
| 173 | case FSF_PSQ_LINK_MODE_TABLE_CURRUPTED: |
| 174 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 175 | "The mode table on the FCP adapter " |
| 176 | "has been damaged\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 177 | break; |
| 178 | case FSF_PSQ_LINK_NO_WWPN_ASSIGNMENT: |
| 179 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 180 | "All NPIV ports on the FCP adapter have " |
| 181 | "been assigned\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 182 | break; |
| 183 | default: |
| 184 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 185 | "The link between the FCP adapter and " |
| 186 | "the FC fabric is down\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 187 | } |
| 188 | out: |
Swen Schillig | edaed859 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 189 | zfcp_erp_set_adapter_status(adapter, ZFCP_STATUS_COMMON_ERP_FAILED); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 190 | } |
| 191 | |
| 192 | static void zfcp_fsf_status_read_link_down(struct zfcp_fsf_req *req) |
| 193 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 194 | struct fsf_status_read_buffer *sr_buf = req->data; |
| 195 | struct fsf_link_down_info *ldi = |
| 196 | (struct fsf_link_down_info *) &sr_buf->payload; |
| 197 | |
| 198 | switch (sr_buf->status_subtype) { |
| 199 | case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK: |
Swen Schillig | edaed859 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 200 | zfcp_fsf_link_down_info_eval(req, ldi); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 201 | break; |
| 202 | case FSF_STATUS_READ_SUB_FDISC_FAILED: |
Swen Schillig | edaed859 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 203 | zfcp_fsf_link_down_info_eval(req, ldi); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 204 | break; |
| 205 | case FSF_STATUS_READ_SUB_FIRMWARE_UPDATE: |
Swen Schillig | edaed859 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 206 | zfcp_fsf_link_down_info_eval(req, NULL); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 207 | }; |
| 208 | } |
| 209 | |
| 210 | static void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req) |
| 211 | { |
| 212 | struct zfcp_adapter *adapter = req->adapter; |
| 213 | struct fsf_status_read_buffer *sr_buf = req->data; |
| 214 | |
| 215 | if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { |
Swen Schillig | a54ca0f | 2010-12-02 15:16:14 +0100 | [diff] [blame] | 216 | zfcp_dbf_hba_fsf_uss("fssrh_1", req); |
Christof Schmitt | c7b279a | 2011-02-22 19:54:40 +0100 | [diff] [blame] | 217 | mempool_free(virt_to_page(sr_buf), adapter->pool.sr_data); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 218 | zfcp_fsf_req_free(req); |
| 219 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | } |
| 221 | |
Swen Schillig | a54ca0f | 2010-12-02 15:16:14 +0100 | [diff] [blame] | 222 | zfcp_dbf_hba_fsf_uss("fssrh_2", req); |
Maxim Shchetynin | 8a36e45 | 2005-09-13 21:50:38 +0200 | [diff] [blame] | 223 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 224 | switch (sr_buf->status_type) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 225 | case FSF_STATUS_READ_PORT_CLOSED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 226 | zfcp_fsf_status_read_port_closed(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 227 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | case FSF_STATUS_READ_INCOMING_ELS: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 229 | zfcp_fc_incoming_els(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | case FSF_STATUS_READ_SENSE_DATA_AVAIL: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 233 | case FSF_STATUS_READ_BIT_ERROR_THRESHOLD: |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 234 | dev_warn(&adapter->ccw_device->dev, |
| 235 | "The error threshold for checksum statistics " |
| 236 | "has been exceeded\n"); |
Swen Schillig | a54ca0f | 2010-12-02 15:16:14 +0100 | [diff] [blame] | 237 | zfcp_dbf_hba_bit_err("fssrh_3", req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | case FSF_STATUS_READ_LINK_DOWN: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 240 | zfcp_fsf_status_read_link_down(req); |
Sven Schuetz | 2d1e547 | 2010-07-16 15:37:39 +0200 | [diff] [blame] | 241 | zfcp_fc_enqueue_event(adapter, FCH_EVT_LINKDOWN, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | case FSF_STATUS_READ_LINK_UP: |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 244 | dev_info(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 245 | "The local link has been restored\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 246 | /* All ports should be marked as ready to run again */ |
Swen Schillig | edaed859 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 247 | zfcp_erp_set_adapter_status(adapter, |
| 248 | ZFCP_STATUS_COMMON_RUNNING); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | zfcp_erp_adapter_reopen(adapter, |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 250 | ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | |
| 251 | ZFCP_STATUS_COMMON_ERP_FAILED, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 252 | "fssrh_2"); |
Sven Schuetz | 2d1e547 | 2010-07-16 15:37:39 +0200 | [diff] [blame] | 253 | zfcp_fc_enqueue_event(adapter, FCH_EVT_LINKUP, 0); |
| 254 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | break; |
Maxim Shchetynin | 9eb69af | 2006-01-05 09:56:47 +0100 | [diff] [blame] | 256 | case FSF_STATUS_READ_NOTIFICATION_LOST: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 257 | if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_ACT_UPDATED) |
Christof Schmitt | a1ca483 | 2010-09-08 14:39:59 +0200 | [diff] [blame] | 258 | zfcp_cfdc_adapter_access_changed(adapter); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 259 | if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_INCOMING_ELS) |
Swen Schillig | 9eae07e | 2009-11-24 16:54:06 +0100 | [diff] [blame] | 260 | queue_work(adapter->work_queue, &adapter->scan_work); |
Maxim Shchetynin | 9eb69af | 2006-01-05 09:56:47 +0100 | [diff] [blame] | 261 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 262 | case FSF_STATUS_READ_CFDC_UPDATED: |
Christof Schmitt | a1ca483 | 2010-09-08 14:39:59 +0200 | [diff] [blame] | 263 | zfcp_cfdc_adapter_access_changed(adapter); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | break; |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 265 | case FSF_STATUS_READ_FEATURE_UPDATE_ALERT: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 266 | adapter->adapter_features = sr_buf->payload.word[0]; |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 267 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 269 | |
Christof Schmitt | c7b279a | 2011-02-22 19:54:40 +0100 | [diff] [blame] | 270 | mempool_free(virt_to_page(sr_buf), adapter->pool.sr_data); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 271 | zfcp_fsf_req_free(req); |
Swen Schillig | d26ab06 | 2008-05-19 12:17:37 +0200 | [diff] [blame] | 272 | |
| 273 | atomic_inc(&adapter->stat_miss); |
Swen Schillig | 4544683 | 2009-08-18 15:43:17 +0200 | [diff] [blame] | 274 | queue_work(adapter->work_queue, &adapter->stat_work); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | } |
| 276 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 277 | static void zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 278 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 279 | switch (req->qtcb->header.fsf_status_qual.word[0]) { |
| 280 | case FSF_SQ_FCP_RSP_AVAILABLE: |
| 281 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
| 282 | case FSF_SQ_NO_RETRY_POSSIBLE: |
| 283 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
| 284 | return; |
| 285 | case FSF_SQ_COMMAND_ABORTED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 286 | break; |
| 287 | case FSF_SQ_NO_RECOM: |
| 288 | dev_err(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 289 | "The FCP adapter reported a problem " |
| 290 | "that cannot be recovered\n"); |
Christof Schmitt | 339f4f4 | 2010-07-16 15:37:43 +0200 | [diff] [blame] | 291 | zfcp_qdio_siosl(req->adapter); |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 292 | zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfsqe1"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 293 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 294 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 295 | /* all non-return stats set FSFREQ_ERROR*/ |
| 296 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 297 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 298 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 299 | static void zfcp_fsf_fsfstatus_eval(struct zfcp_fsf_req *req) |
| 300 | { |
| 301 | if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) |
| 302 | return; |
Andreas Herrmann | 059c97d | 2005-09-13 21:47:52 +0200 | [diff] [blame] | 303 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 304 | switch (req->qtcb->header.fsf_status) { |
| 305 | case FSF_UNKNOWN_COMMAND: |
| 306 | dev_err(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 307 | "The FCP adapter does not recognize the command 0x%x\n", |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 308 | req->qtcb->header.fsf_command); |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 309 | zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfse_1"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 310 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 311 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 312 | case FSF_ADAPTER_STATUS_AVAILABLE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 313 | zfcp_fsf_fsfstatus_qual_eval(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 315 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | } |
| 317 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 318 | static void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 319 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 320 | struct zfcp_adapter *adapter = req->adapter; |
| 321 | struct fsf_qtcb *qtcb = req->qtcb; |
| 322 | union fsf_prot_status_qual *psq = &qtcb->prefix.prot_status_qual; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | |
Swen Schillig | 5771710 | 2009-08-18 15:43:21 +0200 | [diff] [blame] | 324 | zfcp_dbf_hba_fsf_response(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 326 | if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 327 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 328 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | } |
| 330 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 331 | switch (qtcb->prefix.prot_status) { |
| 332 | case FSF_PROT_GOOD: |
| 333 | case FSF_PROT_FSF_STATUS_PRESENTED: |
| 334 | return; |
| 335 | case FSF_PROT_QTCB_VERSION_ERROR: |
| 336 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 337 | "QTCB version 0x%x not supported by FCP adapter " |
| 338 | "(0x%x to 0x%x)\n", FSF_QTCB_CURRENT_VERSION, |
| 339 | psq->word[0], psq->word[1]); |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 340 | zfcp_erp_adapter_shutdown(adapter, 0, "fspse_1"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 342 | case FSF_PROT_ERROR_STATE: |
| 343 | case FSF_PROT_SEQ_NUMB_ERROR: |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 344 | zfcp_erp_adapter_reopen(adapter, 0, "fspse_2"); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 345 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 347 | case FSF_PROT_UNSUPP_QTCB_TYPE: |
| 348 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 349 | "The QTCB type is not supported by the FCP adapter\n"); |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 350 | zfcp_erp_adapter_shutdown(adapter, 0, "fspse_3"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 351 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 352 | case FSF_PROT_HOST_CONNECTION_INITIALIZING: |
| 353 | atomic_set_mask(ZFCP_STATUS_ADAPTER_HOST_CON_INIT, |
| 354 | &adapter->status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 356 | case FSF_PROT_DUPLICATE_REQUEST_ID: |
| 357 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 358 | "0x%Lx is an ambiguous request identifier\n", |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 359 | (unsigned long long)qtcb->bottom.support.req_handle); |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 360 | zfcp_erp_adapter_shutdown(adapter, 0, "fspse_4"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 361 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 362 | case FSF_PROT_LINK_DOWN: |
Swen Schillig | edaed859 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 363 | zfcp_fsf_link_down_info_eval(req, &psq->link_down_info); |
Christof Schmitt | 452b505 | 2010-02-17 11:18:51 +0100 | [diff] [blame] | 364 | /* go through reopen to flush pending requests */ |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 365 | zfcp_erp_adapter_reopen(adapter, 0, "fspse_6"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 366 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 367 | case FSF_PROT_REEST_QUEUE: |
| 368 | /* All ports should be marked as ready to run again */ |
Swen Schillig | edaed859 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 369 | zfcp_erp_set_adapter_status(adapter, |
| 370 | ZFCP_STATUS_COMMON_RUNNING); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 371 | zfcp_erp_adapter_reopen(adapter, |
| 372 | ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 373 | ZFCP_STATUS_COMMON_ERP_FAILED, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 374 | "fspse_8"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 375 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | default: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 377 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 378 | "0x%x is not a valid transfer protocol status\n", |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 379 | qtcb->prefix.prot_status); |
Christof Schmitt | 339f4f4 | 2010-07-16 15:37:43 +0200 | [diff] [blame] | 380 | zfcp_qdio_siosl(adapter); |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 381 | zfcp_erp_adapter_shutdown(adapter, 0, "fspse_9"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 382 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 383 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | } |
| 385 | |
| 386 | /** |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 387 | * zfcp_fsf_req_complete - process completion of a FSF request |
| 388 | * @fsf_req: The FSF request that has been completed. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | * |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 390 | * When a request has been completed either from the FCP adapter, |
| 391 | * or it has been dismissed due to a queue shutdown, this function |
| 392 | * is called to process the completion status and trigger further |
| 393 | * events related to the FSF request. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 394 | */ |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 395 | static void zfcp_fsf_req_complete(struct zfcp_fsf_req *req) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 396 | { |
| 397 | if (unlikely(req->fsf_command == FSF_QTCB_UNSOLICITED_STATUS)) { |
| 398 | zfcp_fsf_status_read_handler(req); |
| 399 | return; |
| 400 | } |
| 401 | |
| 402 | del_timer(&req->timer); |
| 403 | zfcp_fsf_protstatus_eval(req); |
| 404 | zfcp_fsf_fsfstatus_eval(req); |
| 405 | req->handler(req); |
| 406 | |
| 407 | if (req->erp_action) |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 408 | zfcp_erp_notify(req->erp_action, 0); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 409 | |
| 410 | if (likely(req->status & ZFCP_STATUS_FSFREQ_CLEANUP)) |
| 411 | zfcp_fsf_req_free(req); |
| 412 | else |
Swen Schillig | 058b864 | 2009-08-18 15:43:14 +0200 | [diff] [blame] | 413 | complete(&req->completion); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 414 | } |
| 415 | |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 416 | /** |
| 417 | * zfcp_fsf_req_dismiss_all - dismiss all fsf requests |
| 418 | * @adapter: pointer to struct zfcp_adapter |
| 419 | * |
| 420 | * Never ever call this without shutting down the adapter first. |
| 421 | * Otherwise the adapter would continue using and corrupting s390 storage. |
| 422 | * Included BUG_ON() call to ensure this is done. |
| 423 | * ERP is supposed to be the only user of this function. |
| 424 | */ |
| 425 | void zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter) |
| 426 | { |
| 427 | struct zfcp_fsf_req *req, *tmp; |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 428 | LIST_HEAD(remove_queue); |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 429 | |
| 430 | BUG_ON(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP); |
Christof Schmitt | b6bd2fb | 2010-02-17 11:18:50 +0100 | [diff] [blame] | 431 | zfcp_reqlist_move(adapter->req_list, &remove_queue); |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 432 | |
| 433 | list_for_each_entry_safe(req, tmp, &remove_queue, list) { |
| 434 | list_del(&req->list); |
| 435 | req->status |= ZFCP_STATUS_FSFREQ_DISMISSED; |
| 436 | zfcp_fsf_req_complete(req); |
| 437 | } |
| 438 | } |
| 439 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 440 | static int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 441 | { |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 442 | struct fsf_qtcb_bottom_config *bottom = &req->qtcb->bottom.config; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 443 | struct zfcp_adapter *adapter = req->adapter; |
Andreas Herrmann | 13e1e1f | 2005-09-19 16:56:17 +0200 | [diff] [blame] | 444 | struct Scsi_Host *shost = adapter->scsi_host; |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 445 | struct fc_els_flogi *nsp, *plogi; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 446 | |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 447 | /* adjust pointers for missing command code */ |
| 448 | nsp = (struct fc_els_flogi *) ((u8 *)&bottom->nport_serv_param |
| 449 | - sizeof(u32)); |
| 450 | plogi = (struct fc_els_flogi *) ((u8 *)&bottom->plogi_payload |
| 451 | - sizeof(u32)); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 452 | |
| 453 | if (req->data) |
| 454 | memcpy(req->data, bottom, sizeof(*bottom)); |
| 455 | |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 456 | fc_host_port_name(shost) = nsp->fl_wwpn; |
| 457 | fc_host_node_name(shost) = nsp->fl_wwnn; |
Christof Schmitt | 800c0ca | 2009-11-24 16:54:12 +0100 | [diff] [blame] | 458 | fc_host_port_id(shost) = ntoh24(bottom->s_id); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 459 | fc_host_speed(shost) = bottom->fc_link_speed; |
| 460 | fc_host_supported_classes(shost) = FC_COS_CLASS2 | FC_COS_CLASS3; |
| 461 | |
| 462 | adapter->hydra_version = bottom->adapter_type; |
Christof Schmitt | faf4cd8 | 2010-07-16 15:37:36 +0200 | [diff] [blame] | 463 | adapter->timer_ticks = bottom->timer_interval & ZFCP_FSF_TIMER_INT_MASK; |
Christof Schmitt | 8d88cf3 | 2010-06-21 10:11:33 +0200 | [diff] [blame] | 464 | adapter->stat_read_buf_num = max(bottom->status_read_buf_num, |
| 465 | (u16)FSF_STATUS_READS_RECOM); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 466 | |
| 467 | if (fc_host_permanent_port_name(shost) == -1) |
| 468 | fc_host_permanent_port_name(shost) = fc_host_port_name(shost); |
| 469 | |
| 470 | switch (bottom->fc_topology) { |
| 471 | case FSF_TOPO_P2P: |
Christof Schmitt | 800c0ca | 2009-11-24 16:54:12 +0100 | [diff] [blame] | 472 | adapter->peer_d_id = ntoh24(bottom->peer_d_id); |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 473 | adapter->peer_wwpn = plogi->fl_wwpn; |
| 474 | adapter->peer_wwnn = plogi->fl_wwnn; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 475 | fc_host_port_type(shost) = FC_PORTTYPE_PTP; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 476 | break; |
| 477 | case FSF_TOPO_FABRIC: |
| 478 | fc_host_port_type(shost) = FC_PORTTYPE_NPORT; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 479 | break; |
| 480 | case FSF_TOPO_AL: |
| 481 | fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; |
Christof Schmitt | dceab65 | 2009-05-15 13:18:18 +0200 | [diff] [blame] | 482 | /* fall through */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 483 | default: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 484 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 485 | "Unknown or unsupported arbitrated loop " |
| 486 | "fibre channel topology detected\n"); |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 487 | zfcp_erp_adapter_shutdown(adapter, 0, "fsece_1"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 488 | return -EIO; |
| 489 | } |
| 490 | |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 491 | zfcp_scsi_set_prot(adapter); |
| 492 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 493 | return 0; |
| 494 | } |
| 495 | |
| 496 | static void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req) |
| 497 | { |
| 498 | struct zfcp_adapter *adapter = req->adapter; |
| 499 | struct fsf_qtcb *qtcb = req->qtcb; |
| 500 | struct fsf_qtcb_bottom_config *bottom = &qtcb->bottom.config; |
| 501 | struct Scsi_Host *shost = adapter->scsi_host; |
| 502 | |
| 503 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
| 504 | return; |
| 505 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 506 | adapter->fsf_lic_version = bottom->lic_version; |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 507 | adapter->adapter_features = bottom->adapter_features; |
| 508 | adapter->connection_features = bottom->connection_features; |
| 6f71d9b | 2005-04-10 23:04:28 -0500 | [diff] [blame] | 509 | adapter->peer_wwpn = 0; |
| 510 | adapter->peer_wwnn = 0; |
| 511 | adapter->peer_d_id = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 512 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 513 | switch (qtcb->header.fsf_status) { |
| 514 | case FSF_GOOD: |
| 515 | if (zfcp_fsf_exchange_config_evaluate(req)) |
| 516 | return; |
Swen Schillig | 52ef11a | 2007-08-28 09:31:09 +0200 | [diff] [blame] | 517 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 518 | if (bottom->max_qtcb_size < sizeof(struct fsf_qtcb)) { |
| 519 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 520 | "FCP adapter maximum QTCB size (%d bytes) " |
| 521 | "is too small\n", |
| 522 | bottom->max_qtcb_size); |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 523 | zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh1"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 524 | return; |
| 525 | } |
| 526 | atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, |
| 527 | &adapter->status); |
| 528 | break; |
| 529 | case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: |
Andreas Herrmann | 13e1e1f | 2005-09-19 16:56:17 +0200 | [diff] [blame] | 530 | fc_host_node_name(shost) = 0; |
| 531 | fc_host_port_name(shost) = 0; |
| 532 | fc_host_port_id(shost) = 0; |
| 533 | fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; |
Andreas Herrmann | ad757cd | 2006-01-13 02:26:11 +0100 | [diff] [blame] | 534 | fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | adapter->hydra_version = 0; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 536 | |
Swen Schillig | edaed859 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 537 | zfcp_fsf_link_down_info_eval(req, |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 538 | &qtcb->header.fsf_status_qual.link_down_info); |
| 539 | break; |
| 540 | default: |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 541 | zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh3"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 542 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 543 | } |
| 544 | |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 545 | if (adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 546 | adapter->hardware_version = bottom->hardware_version; |
Andreas Herrmann | 13e1e1f | 2005-09-19 16:56:17 +0200 | [diff] [blame] | 547 | memcpy(fc_host_serial_number(shost), bottom->serial_number, |
| 548 | min(FC_SERIAL_NUMBER_SIZE, 17)); |
| 549 | EBCASC(fc_host_serial_number(shost), |
| 550 | min(FC_SERIAL_NUMBER_SIZE, 17)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 551 | } |
| 552 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 553 | if (FSF_QTCB_CURRENT_VERSION < bottom->low_qtcb_version) { |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 554 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 555 | "The FCP adapter only supports newer " |
| 556 | "control block versions\n"); |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 557 | zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh4"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 558 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 559 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 560 | if (FSF_QTCB_CURRENT_VERSION > bottom->high_qtcb_version) { |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 561 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 562 | "The FCP adapter only supports older " |
| 563 | "control block versions\n"); |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 564 | zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh5"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 565 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 566 | } |
| 567 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 568 | static void zfcp_fsf_exchange_port_evaluate(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 569 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 570 | struct zfcp_adapter *adapter = req->adapter; |
| 571 | struct fsf_qtcb_bottom_port *bottom = &req->qtcb->bottom.port; |
| 572 | struct Scsi_Host *shost = adapter->scsi_host; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 573 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 574 | if (req->data) |
| 575 | memcpy(req->data, bottom, sizeof(*bottom)); |
Andreas Herrmann | 2f8f3ed | 2006-02-11 01:41:50 +0100 | [diff] [blame] | 576 | |
Christof Schmitt | 0282985 | 2009-03-02 13:09:06 +0100 | [diff] [blame] | 577 | if (adapter->connection_features & FSF_FEATURE_NPIV_MODE) { |
Andreas Herrmann | 2f8f3ed | 2006-02-11 01:41:50 +0100 | [diff] [blame] | 578 | fc_host_permanent_port_name(shost) = bottom->wwpn; |
Christof Schmitt | 0282985 | 2009-03-02 13:09:06 +0100 | [diff] [blame] | 579 | fc_host_port_type(shost) = FC_PORTTYPE_NPIV; |
| 580 | } else |
Andreas Herrmann | 2f8f3ed | 2006-02-11 01:41:50 +0100 | [diff] [blame] | 581 | fc_host_permanent_port_name(shost) = fc_host_port_name(shost); |
| 582 | fc_host_maxframe_size(shost) = bottom->maximum_frame_size; |
| 583 | fc_host_supported_speeds(shost) = bottom->supported_speed; |
Christof Schmitt | 2d8e62b | 2010-02-17 11:18:58 +0100 | [diff] [blame] | 584 | memcpy(fc_host_supported_fc4s(shost), bottom->supported_fc4_types, |
| 585 | FC_FC4_LIST_SIZE); |
| 586 | memcpy(fc_host_active_fc4s(shost), bottom->active_fc4_types, |
| 587 | FC_FC4_LIST_SIZE); |
Andreas Herrmann | 2f8f3ed | 2006-02-11 01:41:50 +0100 | [diff] [blame] | 588 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 589 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 590 | static void zfcp_fsf_exchange_port_data_handler(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 591 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 592 | struct fsf_qtcb *qtcb = req->qtcb; |
Andreas Herrmann | 2f8f3ed | 2006-02-11 01:41:50 +0100 | [diff] [blame] | 593 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 594 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 595 | return; |
| 596 | |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 597 | switch (qtcb->header.fsf_status) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 598 | case FSF_GOOD: |
| 599 | zfcp_fsf_exchange_port_evaluate(req); |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 600 | break; |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 601 | case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 602 | zfcp_fsf_exchange_port_evaluate(req); |
Swen Schillig | edaed859 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 603 | zfcp_fsf_link_down_info_eval(req, |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 604 | &qtcb->header.fsf_status_qual.link_down_info); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 605 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 606 | } |
| 607 | } |
| 608 | |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 609 | static struct zfcp_fsf_req *zfcp_fsf_alloc(mempool_t *pool) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 610 | { |
| 611 | struct zfcp_fsf_req *req; |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 612 | |
| 613 | if (likely(pool)) |
| 614 | req = mempool_alloc(pool, GFP_ATOMIC); |
| 615 | else |
| 616 | req = kmalloc(sizeof(*req), GFP_ATOMIC); |
| 617 | |
| 618 | if (unlikely(!req)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 619 | return NULL; |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 620 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 621 | memset(req, 0, sizeof(*req)); |
Christof Schmitt | 88f2a97 | 2008-11-04 16:35:07 +0100 | [diff] [blame] | 622 | req->pool = pool; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 623 | return req; |
| 624 | } |
| 625 | |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 626 | static struct fsf_qtcb *zfcp_qtcb_alloc(mempool_t *pool) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 627 | { |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 628 | struct fsf_qtcb *qtcb; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 629 | |
| 630 | if (likely(pool)) |
| 631 | qtcb = mempool_alloc(pool, GFP_ATOMIC); |
| 632 | else |
Christof Schmitt | 259afe2 | 2011-02-22 19:54:44 +0100 | [diff] [blame] | 633 | qtcb = kmem_cache_alloc(zfcp_fsf_qtcb_cache, GFP_ATOMIC); |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 634 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 635 | if (unlikely(!qtcb)) |
| 636 | return NULL; |
| 637 | |
| 638 | memset(qtcb, 0, sizeof(*qtcb)); |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 639 | return qtcb; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 640 | } |
| 641 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 642 | static struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_qdio *qdio, |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 643 | u32 fsf_cmd, u8 sbtype, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 644 | mempool_t *pool) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 645 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 646 | struct zfcp_adapter *adapter = qdio->adapter; |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 647 | struct zfcp_fsf_req *req = zfcp_fsf_alloc(pool); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 648 | |
| 649 | if (unlikely(!req)) |
Christof Schmitt | 1e9b164 | 2009-07-13 15:06:04 +0200 | [diff] [blame] | 650 | return ERR_PTR(-ENOMEM); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 651 | |
| 652 | if (adapter->req_no == 0) |
| 653 | adapter->req_no++; |
| 654 | |
| 655 | INIT_LIST_HEAD(&req->list); |
| 656 | init_timer(&req->timer); |
Swen Schillig | 058b864 | 2009-08-18 15:43:14 +0200 | [diff] [blame] | 657 | init_completion(&req->completion); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 658 | |
| 659 | req->adapter = adapter; |
| 660 | req->fsf_command = fsf_cmd; |
Christof Schmitt | 52bfb55 | 2009-03-02 13:08:58 +0100 | [diff] [blame] | 661 | req->req_id = adapter->req_no; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 662 | |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 663 | if (likely(fsf_cmd != FSF_QTCB_UNSOLICITED_STATUS)) { |
| 664 | if (likely(pool)) |
| 665 | req->qtcb = zfcp_qtcb_alloc(adapter->pool.qtcb_pool); |
| 666 | else |
| 667 | req->qtcb = zfcp_qtcb_alloc(NULL); |
| 668 | |
| 669 | if (unlikely(!req->qtcb)) { |
| 670 | zfcp_fsf_req_free(req); |
| 671 | return ERR_PTR(-ENOMEM); |
| 672 | } |
| 673 | |
Christof Schmitt | 5bdecd2 | 2010-02-17 11:18:55 +0100 | [diff] [blame] | 674 | req->seq_no = adapter->fsf_req_seq_no; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 675 | req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 676 | req->qtcb->prefix.req_id = req->req_id; |
| 677 | req->qtcb->prefix.ulp_info = 26; |
| 678 | req->qtcb->prefix.qtcb_type = fsf_qtcb_type[req->fsf_command]; |
| 679 | req->qtcb->prefix.qtcb_version = FSF_QTCB_CURRENT_VERSION; |
| 680 | req->qtcb->header.req_handle = req->req_id; |
| 681 | req->qtcb->header.fsf_command = req->fsf_command; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 682 | } |
| 683 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 684 | zfcp_qdio_req_init(adapter->qdio, &req->qdio_req, req->req_id, sbtype, |
| 685 | req->qtcb, sizeof(struct fsf_qtcb)); |
| 686 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 687 | return req; |
| 688 | } |
| 689 | |
| 690 | static int zfcp_fsf_req_send(struct zfcp_fsf_req *req) |
| 691 | { |
| 692 | struct zfcp_adapter *adapter = req->adapter; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 693 | struct zfcp_qdio *qdio = adapter->qdio; |
Christof Schmitt | b6bd2fb | 2010-02-17 11:18:50 +0100 | [diff] [blame] | 694 | int with_qtcb = (req->qtcb != NULL); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 695 | int req_id = req->req_id; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 696 | |
Christof Schmitt | b6bd2fb | 2010-02-17 11:18:50 +0100 | [diff] [blame] | 697 | zfcp_reqlist_add(adapter->req_list, req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 698 | |
Swen Schillig | 706eca4 | 2010-07-16 15:37:38 +0200 | [diff] [blame] | 699 | req->qdio_req.qdio_outb_usage = atomic_read(&qdio->req_q_free); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 700 | req->issued = get_clock(); |
Christof Schmitt | 34c2b71 | 2010-02-17 11:18:59 +0100 | [diff] [blame] | 701 | if (zfcp_qdio_send(qdio, &req->qdio_req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 702 | del_timer(&req->timer); |
Christof Schmitt | 3765138 | 2008-11-04 16:35:08 +0100 | [diff] [blame] | 703 | /* lookup request again, list might have changed */ |
Christof Schmitt | b6bd2fb | 2010-02-17 11:18:50 +0100 | [diff] [blame] | 704 | zfcp_reqlist_find_rm(adapter->req_list, req_id); |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 705 | zfcp_erp_adapter_reopen(adapter, 0, "fsrs__1"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 706 | return -EIO; |
| 707 | } |
| 708 | |
| 709 | /* Don't increase for unsolicited status */ |
Martin Petermann | 135ea13 | 2009-04-17 15:08:01 +0200 | [diff] [blame] | 710 | if (with_qtcb) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 711 | adapter->fsf_req_seq_no++; |
Christof Schmitt | 52bfb55 | 2009-03-02 13:08:58 +0100 | [diff] [blame] | 712 | adapter->req_no++; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 713 | |
| 714 | return 0; |
| 715 | } |
| 716 | |
| 717 | /** |
| 718 | * zfcp_fsf_status_read - send status read request |
| 719 | * @adapter: pointer to struct zfcp_adapter |
| 720 | * @req_flags: request flags |
| 721 | * Returns: 0 on success, ERROR otherwise |
| 722 | */ |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 723 | int zfcp_fsf_status_read(struct zfcp_qdio *qdio) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 724 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 725 | struct zfcp_adapter *adapter = qdio->adapter; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 726 | struct zfcp_fsf_req *req; |
| 727 | struct fsf_status_read_buffer *sr_buf; |
Christof Schmitt | c7b279a | 2011-02-22 19:54:40 +0100 | [diff] [blame] | 728 | struct page *page; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 729 | int retval = -EIO; |
| 730 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 731 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 732 | if (zfcp_qdio_sbal_get(qdio)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 733 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 734 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 735 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_UNSOLICITED_STATUS, 0, |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 736 | adapter->pool.status_read_req); |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 737 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 738 | retval = PTR_ERR(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 739 | goto out; |
| 740 | } |
| 741 | |
Christof Schmitt | c7b279a | 2011-02-22 19:54:40 +0100 | [diff] [blame] | 742 | page = mempool_alloc(adapter->pool.sr_data, GFP_ATOMIC); |
| 743 | if (!page) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 744 | retval = -ENOMEM; |
| 745 | goto failed_buf; |
| 746 | } |
Christof Schmitt | c7b279a | 2011-02-22 19:54:40 +0100 | [diff] [blame] | 747 | sr_buf = page_address(page); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 748 | memset(sr_buf, 0, sizeof(*sr_buf)); |
| 749 | req->data = sr_buf; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 750 | |
| 751 | zfcp_qdio_fill_next(qdio, &req->qdio_req, sr_buf, sizeof(*sr_buf)); |
| 752 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 753 | |
| 754 | retval = zfcp_fsf_req_send(req); |
| 755 | if (retval) |
| 756 | goto failed_req_send; |
| 757 | |
| 758 | goto out; |
| 759 | |
| 760 | failed_req_send: |
Swen Schillig | a54ca0f | 2010-12-02 15:16:14 +0100 | [diff] [blame] | 761 | req->data = NULL; |
Christof Schmitt | c7b279a | 2011-02-22 19:54:40 +0100 | [diff] [blame] | 762 | mempool_free(virt_to_page(sr_buf), adapter->pool.sr_data); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 763 | failed_buf: |
Swen Schillig | a54ca0f | 2010-12-02 15:16:14 +0100 | [diff] [blame] | 764 | zfcp_dbf_hba_fsf_uss("fssr__1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 765 | zfcp_fsf_req_free(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 766 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 767 | spin_unlock_irq(&qdio->req_q_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 768 | return retval; |
| 769 | } |
| 770 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 771 | static void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 772 | { |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 773 | struct scsi_device *sdev = req->data; |
| 774 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 775 | union fsf_status_qual *fsq = &req->qtcb->header.fsf_status_qual; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 776 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 777 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
| 778 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 779 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 780 | switch (req->qtcb->header.fsf_status) { |
| 781 | case FSF_PORT_HANDLE_NOT_VALID: |
| 782 | if (fsq->word[0] == fsq->word[1]) { |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 783 | zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 784 | "fsafch1"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 785 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 786 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 787 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 788 | case FSF_LUN_HANDLE_NOT_VALID: |
| 789 | if (fsq->word[0] == fsq->word[1]) { |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 790 | zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fsafch2"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 791 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 792 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 793 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 794 | case FSF_FCP_COMMAND_DOES_NOT_EXIST: |
| 795 | req->status |= ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 796 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 797 | case FSF_PORT_BOXED: |
Swen Schillig | edaed859 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 798 | zfcp_erp_set_port_status(zfcp_sdev->port, |
| 799 | ZFCP_STATUS_COMMON_ACCESS_BOXED); |
| 800 | zfcp_erp_port_reopen(zfcp_sdev->port, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 801 | ZFCP_STATUS_COMMON_ERP_FAILED, "fsafch3"); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 802 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 803 | break; |
| 804 | case FSF_LUN_BOXED: |
Swen Schillig | edaed859 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 805 | zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_ACCESS_BOXED); |
| 806 | zfcp_erp_lun_reopen(sdev, ZFCP_STATUS_COMMON_ERP_FAILED, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 807 | "fsafch4"); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 808 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 809 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 810 | case FSF_ADAPTER_STATUS_AVAILABLE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 811 | switch (fsq->word[0]) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 812 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 813 | zfcp_fc_test_link(zfcp_sdev->port); |
Christof Schmitt | dceab65 | 2009-05-15 13:18:18 +0200 | [diff] [blame] | 814 | /* fall through */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 815 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 816 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 817 | break; |
| 818 | } |
| 819 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 820 | case FSF_GOOD: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 821 | req->status |= ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED; |
| 822 | break; |
| 823 | } |
| 824 | } |
| 825 | |
| 826 | /** |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 827 | * zfcp_fsf_abort_fcp_cmnd - abort running SCSI command |
| 828 | * @scmnd: The SCSI command to abort |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 829 | * Returns: pointer to struct zfcp_fsf_req |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 830 | */ |
| 831 | |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 832 | struct zfcp_fsf_req *zfcp_fsf_abort_fcp_cmnd(struct scsi_cmnd *scmnd) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 833 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 834 | struct zfcp_fsf_req *req = NULL; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 835 | struct scsi_device *sdev = scmnd->device; |
| 836 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); |
| 837 | struct zfcp_qdio *qdio = zfcp_sdev->port->adapter->qdio; |
| 838 | unsigned long old_req_id = (unsigned long) scmnd->host_scribble; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 839 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 840 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 841 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 842 | goto out; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 843 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_ABORT_FCP_CMND, |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 844 | SBAL_SFLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 845 | qdio->adapter->pool.scsi_abort); |
Swen Schillig | 633528c | 2008-11-26 18:07:37 +0100 | [diff] [blame] | 846 | if (IS_ERR(req)) { |
| 847 | req = NULL; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 848 | goto out; |
Swen Schillig | 633528c | 2008-11-26 18:07:37 +0100 | [diff] [blame] | 849 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 850 | |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 851 | if (unlikely(!(atomic_read(&zfcp_sdev->status) & |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 852 | ZFCP_STATUS_COMMON_UNBLOCKED))) |
| 853 | goto out_error_free; |
| 854 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 855 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 856 | |
Swen Schillig | 6fbf25e | 2010-11-17 14:23:41 +0100 | [diff] [blame] | 857 | req->data = sdev; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 858 | req->handler = zfcp_fsf_abort_fcp_command_handler; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 859 | req->qtcb->header.lun_handle = zfcp_sdev->lun_handle; |
| 860 | req->qtcb->header.port_handle = zfcp_sdev->port->handle; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 861 | req->qtcb->bottom.support.req_handle = (u64) old_req_id; |
| 862 | |
| 863 | zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); |
| 864 | if (!zfcp_fsf_req_send(req)) |
| 865 | goto out; |
| 866 | |
| 867 | out_error_free: |
| 868 | zfcp_fsf_req_free(req); |
| 869 | req = NULL; |
| 870 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 871 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 872 | return req; |
| 873 | } |
| 874 | |
| 875 | static void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req) |
| 876 | { |
| 877 | struct zfcp_adapter *adapter = req->adapter; |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 878 | struct zfcp_fsf_ct_els *ct = req->data; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 879 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 880 | |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 881 | ct->status = -EINVAL; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 882 | |
| 883 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
| 884 | goto skip_fsfstatus; |
| 885 | |
| 886 | switch (header->fsf_status) { |
| 887 | case FSF_GOOD: |
Swen Schillig | 2c55b75 | 2010-12-02 15:16:13 +0100 | [diff] [blame] | 888 | zfcp_dbf_san_res("fsscth1", req); |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 889 | ct->status = 0; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 890 | break; |
| 891 | case FSF_SERVICE_CLASS_NOT_SUPPORTED: |
| 892 | zfcp_fsf_class_not_supp(req); |
| 893 | break; |
| 894 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 895 | switch (header->fsf_status_qual.word[0]){ |
| 896 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 897 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
| 898 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 899 | break; |
| 900 | } |
| 901 | break; |
| 902 | case FSF_ACCESS_DENIED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 903 | break; |
| 904 | case FSF_PORT_BOXED: |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 905 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 906 | break; |
| 907 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 908 | zfcp_erp_adapter_reopen(adapter, 0, "fsscth1"); |
Christof Schmitt | dceab65 | 2009-05-15 13:18:18 +0200 | [diff] [blame] | 909 | /* fall through */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 910 | case FSF_GENERIC_COMMAND_REJECTED: |
| 911 | case FSF_PAYLOAD_SIZE_MISMATCH: |
| 912 | case FSF_REQUEST_SIZE_TOO_LARGE: |
| 913 | case FSF_RESPONSE_SIZE_TOO_LARGE: |
| 914 | case FSF_SBAL_MISMATCH: |
| 915 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 916 | break; |
| 917 | } |
| 918 | |
| 919 | skip_fsfstatus: |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 920 | if (ct->handler) |
| 921 | ct->handler(ct->handler_data); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 922 | } |
| 923 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 924 | static void zfcp_fsf_setup_ct_els_unchained(struct zfcp_qdio *qdio, |
| 925 | struct zfcp_qdio_req *q_req, |
Christof Schmitt | 426f605 | 2009-07-13 15:06:06 +0200 | [diff] [blame] | 926 | struct scatterlist *sg_req, |
| 927 | struct scatterlist *sg_resp) |
| 928 | { |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 929 | zfcp_qdio_fill_next(qdio, q_req, sg_virt(sg_req), sg_req->length); |
| 930 | zfcp_qdio_fill_next(qdio, q_req, sg_virt(sg_resp), sg_resp->length); |
| 931 | zfcp_qdio_set_sbale_last(qdio, q_req); |
Christof Schmitt | 426f605 | 2009-07-13 15:06:06 +0200 | [diff] [blame] | 932 | } |
| 933 | |
Christof Schmitt | 39eb7e9 | 2008-12-19 16:57:01 +0100 | [diff] [blame] | 934 | static int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req, |
| 935 | struct scatterlist *sg_req, |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame] | 936 | struct scatterlist *sg_resp) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 937 | { |
Swen Schillig | 42428f7 | 2009-08-18 15:43:18 +0200 | [diff] [blame] | 938 | struct zfcp_adapter *adapter = req->adapter; |
Swen Schillig | 86a9668 | 2011-08-15 14:40:32 +0200 | [diff] [blame] | 939 | struct zfcp_qdio *qdio = adapter->qdio; |
| 940 | struct fsf_qtcb *qtcb = req->qtcb; |
Swen Schillig | 42428f7 | 2009-08-18 15:43:18 +0200 | [diff] [blame] | 941 | u32 feat = adapter->adapter_features; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 942 | |
Swen Schillig | 86a9668 | 2011-08-15 14:40:32 +0200 | [diff] [blame] | 943 | if (zfcp_adapter_multi_buffer_active(adapter)) { |
| 944 | if (zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, sg_req)) |
| 945 | return -EIO; |
| 946 | if (zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, sg_resp)) |
| 947 | return -EIO; |
Christof Schmitt | 39eb7e9 | 2008-12-19 16:57:01 +0100 | [diff] [blame] | 948 | |
Swen Schillig | 86a9668 | 2011-08-15 14:40:32 +0200 | [diff] [blame] | 949 | zfcp_qdio_set_data_div(qdio, &req->qdio_req, |
| 950 | zfcp_qdio_sbale_count(sg_req)); |
| 951 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
| 952 | zfcp_qdio_set_scount(qdio, &req->qdio_req); |
Christof Schmitt | 426f605 | 2009-07-13 15:06:06 +0200 | [diff] [blame] | 953 | return 0; |
| 954 | } |
| 955 | |
| 956 | /* use single, unchained SBAL if it can hold the request */ |
Swen Schillig | 30b6777 | 2010-06-21 10:11:31 +0200 | [diff] [blame] | 957 | if (zfcp_qdio_sg_one_sbale(sg_req) && zfcp_qdio_sg_one_sbale(sg_resp)) { |
Swen Schillig | 86a9668 | 2011-08-15 14:40:32 +0200 | [diff] [blame] | 958 | zfcp_fsf_setup_ct_els_unchained(qdio, &req->qdio_req, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 959 | sg_req, sg_resp); |
Christof Schmitt | 39eb7e9 | 2008-12-19 16:57:01 +0100 | [diff] [blame] | 960 | return 0; |
| 961 | } |
| 962 | |
Swen Schillig | 86a9668 | 2011-08-15 14:40:32 +0200 | [diff] [blame] | 963 | if (!(feat & FSF_FEATURE_ELS_CT_CHAINED_SBALS)) |
| 964 | return -EOPNOTSUPP; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 965 | |
Swen Schillig | 86a9668 | 2011-08-15 14:40:32 +0200 | [diff] [blame] | 966 | if (zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, sg_req)) |
Christof Schmitt | 9072df4 | 2009-07-13 15:06:07 +0200 | [diff] [blame] | 967 | return -EIO; |
Swen Schillig | 86a9668 | 2011-08-15 14:40:32 +0200 | [diff] [blame] | 968 | |
| 969 | qtcb->bottom.support.req_buf_length = zfcp_qdio_real_bytes(sg_req); |
| 970 | |
| 971 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
| 972 | zfcp_qdio_skip_to_last_sbale(qdio, &req->qdio_req); |
| 973 | |
| 974 | if (zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, sg_resp)) |
| 975 | return -EIO; |
| 976 | |
| 977 | qtcb->bottom.support.resp_buf_length = zfcp_qdio_real_bytes(sg_resp); |
| 978 | |
| 979 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Christof Schmitt | 98fc4d5 | 2009-08-18 15:43:26 +0200 | [diff] [blame] | 980 | |
Christof Schmitt | b1a5898 | 2009-09-24 10:23:21 +0200 | [diff] [blame] | 981 | return 0; |
| 982 | } |
| 983 | |
| 984 | static int zfcp_fsf_setup_ct_els(struct zfcp_fsf_req *req, |
| 985 | struct scatterlist *sg_req, |
| 986 | struct scatterlist *sg_resp, |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame] | 987 | unsigned int timeout) |
Christof Schmitt | b1a5898 | 2009-09-24 10:23:21 +0200 | [diff] [blame] | 988 | { |
| 989 | int ret; |
| 990 | |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame] | 991 | ret = zfcp_fsf_setup_ct_els_sbals(req, sg_req, sg_resp); |
Christof Schmitt | b1a5898 | 2009-09-24 10:23:21 +0200 | [diff] [blame] | 992 | if (ret) |
| 993 | return ret; |
| 994 | |
Christof Schmitt | 98fc4d5 | 2009-08-18 15:43:26 +0200 | [diff] [blame] | 995 | /* common settings for ct/gs and els requests */ |
Swen Schillig | 51375ee | 2010-01-14 17:19:02 +0100 | [diff] [blame] | 996 | if (timeout > 255) |
| 997 | timeout = 255; /* max value accepted by hardware */ |
Christof Schmitt | 98fc4d5 | 2009-08-18 15:43:26 +0200 | [diff] [blame] | 998 | req->qtcb->bottom.support.service_class = FSF_CLASS_3; |
Swen Schillig | 51375ee | 2010-01-14 17:19:02 +0100 | [diff] [blame] | 999 | req->qtcb->bottom.support.timeout = timeout; |
| 1000 | zfcp_fsf_start_timer(req, (timeout + 10) * HZ); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1001 | |
| 1002 | return 0; |
| 1003 | } |
| 1004 | |
| 1005 | /** |
| 1006 | * zfcp_fsf_send_ct - initiate a Generic Service request (FC-GS) |
| 1007 | * @ct: pointer to struct zfcp_send_ct with data for request |
| 1008 | * @pool: if non-null this mempool is used to allocate struct zfcp_fsf_req |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1009 | */ |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 1010 | int zfcp_fsf_send_ct(struct zfcp_fc_wka_port *wka_port, |
Swen Schillig | 51375ee | 2010-01-14 17:19:02 +0100 | [diff] [blame] | 1011 | struct zfcp_fsf_ct_els *ct, mempool_t *pool, |
| 1012 | unsigned int timeout) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1013 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1014 | struct zfcp_qdio *qdio = wka_port->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1015 | struct zfcp_fsf_req *req; |
| 1016 | int ret = -EIO; |
| 1017 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1018 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1019 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1020 | goto out; |
| 1021 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1022 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_GENERIC, |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 1023 | SBAL_SFLAGS0_TYPE_WRITE_READ, pool); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1024 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1025 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1026 | ret = PTR_ERR(req); |
| 1027 | goto out; |
| 1028 | } |
| 1029 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1030 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame] | 1031 | ret = zfcp_fsf_setup_ct_els(req, ct->req, ct->resp, timeout); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1032 | if (ret) |
| 1033 | goto failed_send; |
| 1034 | |
| 1035 | req->handler = zfcp_fsf_send_ct_handler; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1036 | req->qtcb->header.port_handle = wka_port->handle; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1037 | req->data = ct; |
| 1038 | |
Swen Schillig | 2c55b75 | 2010-12-02 15:16:13 +0100 | [diff] [blame] | 1039 | zfcp_dbf_san_req("fssct_1", req, wka_port->d_id); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1040 | |
| 1041 | ret = zfcp_fsf_req_send(req); |
| 1042 | if (ret) |
| 1043 | goto failed_send; |
| 1044 | |
| 1045 | goto out; |
| 1046 | |
| 1047 | failed_send: |
| 1048 | zfcp_fsf_req_free(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1049 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1050 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1051 | return ret; |
| 1052 | } |
| 1053 | |
| 1054 | static void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req) |
| 1055 | { |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 1056 | struct zfcp_fsf_ct_els *send_els = req->data; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1057 | struct zfcp_port *port = send_els->port; |
| 1058 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 1059 | |
| 1060 | send_els->status = -EINVAL; |
| 1061 | |
| 1062 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
| 1063 | goto skip_fsfstatus; |
| 1064 | |
| 1065 | switch (header->fsf_status) { |
| 1066 | case FSF_GOOD: |
Swen Schillig | 2c55b75 | 2010-12-02 15:16:13 +0100 | [diff] [blame] | 1067 | zfcp_dbf_san_res("fsselh1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1068 | send_els->status = 0; |
| 1069 | break; |
| 1070 | case FSF_SERVICE_CLASS_NOT_SUPPORTED: |
| 1071 | zfcp_fsf_class_not_supp(req); |
| 1072 | break; |
| 1073 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 1074 | switch (header->fsf_status_qual.word[0]){ |
| 1075 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1076 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
| 1077 | case FSF_SQ_RETRY_IF_POSSIBLE: |
| 1078 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1079 | break; |
| 1080 | } |
| 1081 | break; |
| 1082 | case FSF_ELS_COMMAND_REJECTED: |
| 1083 | case FSF_PAYLOAD_SIZE_MISMATCH: |
| 1084 | case FSF_REQUEST_SIZE_TOO_LARGE: |
| 1085 | case FSF_RESPONSE_SIZE_TOO_LARGE: |
| 1086 | break; |
| 1087 | case FSF_ACCESS_DENIED: |
Christof Schmitt | a1ca483 | 2010-09-08 14:39:59 +0200 | [diff] [blame] | 1088 | if (port) { |
| 1089 | zfcp_cfdc_port_denied(port, &header->fsf_status_qual); |
| 1090 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1091 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1092 | break; |
| 1093 | case FSF_SBAL_MISMATCH: |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 1094 | /* should never occur, avoided in zfcp_fsf_send_els */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1095 | /* fall through */ |
| 1096 | default: |
| 1097 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1098 | break; |
| 1099 | } |
| 1100 | skip_fsfstatus: |
| 1101 | if (send_els->handler) |
| 1102 | send_els->handler(send_els->handler_data); |
| 1103 | } |
| 1104 | |
| 1105 | /** |
| 1106 | * zfcp_fsf_send_els - initiate an ELS command (FC-FS) |
| 1107 | * @els: pointer to struct zfcp_send_els with data for the command |
| 1108 | */ |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 1109 | int zfcp_fsf_send_els(struct zfcp_adapter *adapter, u32 d_id, |
Swen Schillig | 51375ee | 2010-01-14 17:19:02 +0100 | [diff] [blame] | 1110 | struct zfcp_fsf_ct_els *els, unsigned int timeout) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1111 | { |
| 1112 | struct zfcp_fsf_req *req; |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 1113 | struct zfcp_qdio *qdio = adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1114 | int ret = -EIO; |
| 1115 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1116 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1117 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1118 | goto out; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1119 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1120 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_ELS, |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 1121 | SBAL_SFLAGS0_TYPE_WRITE_READ, NULL); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1122 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1123 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1124 | ret = PTR_ERR(req); |
| 1125 | goto out; |
| 1126 | } |
| 1127 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1128 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame] | 1129 | |
Swen Schillig | 86a9668 | 2011-08-15 14:40:32 +0200 | [diff] [blame] | 1130 | if (!zfcp_adapter_multi_buffer_active(adapter)) |
| 1131 | zfcp_qdio_sbal_limit(qdio, &req->qdio_req, 2); |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame] | 1132 | |
| 1133 | ret = zfcp_fsf_setup_ct_els(req, els->req, els->resp, timeout); |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 1134 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1135 | if (ret) |
| 1136 | goto failed_send; |
| 1137 | |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 1138 | hton24(req->qtcb->bottom.support.d_id, d_id); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1139 | req->handler = zfcp_fsf_send_els_handler; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1140 | req->data = els; |
| 1141 | |
Swen Schillig | 2c55b75 | 2010-12-02 15:16:13 +0100 | [diff] [blame] | 1142 | zfcp_dbf_san_req("fssels1", req, d_id); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1143 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1144 | ret = zfcp_fsf_req_send(req); |
| 1145 | if (ret) |
| 1146 | goto failed_send; |
| 1147 | |
| 1148 | goto out; |
| 1149 | |
| 1150 | failed_send: |
| 1151 | zfcp_fsf_req_free(req); |
| 1152 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1153 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1154 | return ret; |
| 1155 | } |
| 1156 | |
| 1157 | int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action) |
| 1158 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1159 | struct zfcp_fsf_req *req; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1160 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1161 | int retval = -EIO; |
| 1162 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1163 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1164 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1165 | goto out; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1166 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1167 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 1168 | SBAL_SFLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1169 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1170 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1171 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1172 | retval = PTR_ERR(req); |
| 1173 | goto out; |
| 1174 | } |
| 1175 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1176 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1177 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1178 | |
| 1179 | req->qtcb->bottom.config.feature_selection = |
| 1180 | FSF_FEATURE_CFDC | |
| 1181 | FSF_FEATURE_LUN_SHARING | |
| 1182 | FSF_FEATURE_NOTIFICATION_LOST | |
| 1183 | FSF_FEATURE_UPDATE_ALERT; |
| 1184 | req->erp_action = erp_action; |
| 1185 | req->handler = zfcp_fsf_exchange_config_data_handler; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1186 | erp_action->fsf_req_id = req->req_id; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1187 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1188 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1189 | retval = zfcp_fsf_req_send(req); |
| 1190 | if (retval) { |
| 1191 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1192 | erp_action->fsf_req_id = 0; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1193 | } |
| 1194 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1195 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1196 | return retval; |
| 1197 | } |
| 1198 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1199 | int zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *qdio, |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1200 | struct fsf_qtcb_bottom_config *data) |
| 1201 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1202 | struct zfcp_fsf_req *req = NULL; |
| 1203 | int retval = -EIO; |
| 1204 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1205 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1206 | if (zfcp_qdio_sbal_get(qdio)) |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1207 | goto out_unlock; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1208 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1209 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 1210 | SBAL_SFLAGS0_TYPE_READ, NULL); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1211 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1212 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1213 | retval = PTR_ERR(req); |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1214 | goto out_unlock; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1215 | } |
| 1216 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1217 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1218 | req->handler = zfcp_fsf_exchange_config_data_handler; |
| 1219 | |
| 1220 | req->qtcb->bottom.config.feature_selection = |
| 1221 | FSF_FEATURE_CFDC | |
| 1222 | FSF_FEATURE_LUN_SHARING | |
| 1223 | FSF_FEATURE_NOTIFICATION_LOST | |
| 1224 | FSF_FEATURE_UPDATE_ALERT; |
| 1225 | |
| 1226 | if (data) |
| 1227 | req->data = data; |
| 1228 | |
| 1229 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
| 1230 | retval = zfcp_fsf_req_send(req); |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1231 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1232 | if (!retval) |
Swen Schillig | 058b864 | 2009-08-18 15:43:14 +0200 | [diff] [blame] | 1233 | wait_for_completion(&req->completion); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1234 | |
| 1235 | zfcp_fsf_req_free(req); |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1236 | return retval; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1237 | |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1238 | out_unlock: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1239 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1240 | return retval; |
| 1241 | } |
| 1242 | |
| 1243 | /** |
| 1244 | * zfcp_fsf_exchange_port_data - request information about local port |
| 1245 | * @erp_action: ERP action for the adapter for which port data is requested |
| 1246 | * Returns: 0 on success, error otherwise |
| 1247 | */ |
| 1248 | int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action) |
| 1249 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1250 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1251 | struct zfcp_fsf_req *req; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1252 | int retval = -EIO; |
| 1253 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1254 | if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1255 | return -EOPNOTSUPP; |
| 1256 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1257 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1258 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1259 | goto out; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1260 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1261 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 1262 | SBAL_SFLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1263 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1264 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1265 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1266 | retval = PTR_ERR(req); |
| 1267 | goto out; |
| 1268 | } |
| 1269 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1270 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1271 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1272 | |
| 1273 | req->handler = zfcp_fsf_exchange_port_data_handler; |
| 1274 | req->erp_action = erp_action; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1275 | erp_action->fsf_req_id = req->req_id; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1276 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1277 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1278 | retval = zfcp_fsf_req_send(req); |
| 1279 | if (retval) { |
| 1280 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1281 | erp_action->fsf_req_id = 0; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1282 | } |
| 1283 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1284 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1285 | return retval; |
| 1286 | } |
| 1287 | |
| 1288 | /** |
| 1289 | * zfcp_fsf_exchange_port_data_sync - request information about local port |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1290 | * @qdio: pointer to struct zfcp_qdio |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1291 | * @data: pointer to struct fsf_qtcb_bottom_port |
| 1292 | * Returns: 0 on success, error otherwise |
| 1293 | */ |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1294 | int zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *qdio, |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1295 | struct fsf_qtcb_bottom_port *data) |
| 1296 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1297 | struct zfcp_fsf_req *req = NULL; |
| 1298 | int retval = -EIO; |
| 1299 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1300 | if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1301 | return -EOPNOTSUPP; |
| 1302 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1303 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1304 | if (zfcp_qdio_sbal_get(qdio)) |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1305 | goto out_unlock; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1306 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1307 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 1308 | SBAL_SFLAGS0_TYPE_READ, NULL); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1309 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1310 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1311 | retval = PTR_ERR(req); |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1312 | goto out_unlock; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1313 | } |
| 1314 | |
| 1315 | if (data) |
| 1316 | req->data = data; |
| 1317 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1318 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1319 | |
| 1320 | req->handler = zfcp_fsf_exchange_port_data_handler; |
| 1321 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
| 1322 | retval = zfcp_fsf_req_send(req); |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1323 | spin_unlock_irq(&qdio->req_q_lock); |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1324 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1325 | if (!retval) |
Swen Schillig | 058b864 | 2009-08-18 15:43:14 +0200 | [diff] [blame] | 1326 | wait_for_completion(&req->completion); |
| 1327 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1328 | zfcp_fsf_req_free(req); |
| 1329 | |
| 1330 | return retval; |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1331 | |
| 1332 | out_unlock: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1333 | spin_unlock_irq(&qdio->req_q_lock); |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1334 | return retval; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1335 | } |
| 1336 | |
| 1337 | static void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req) |
| 1338 | { |
| 1339 | struct zfcp_port *port = req->data; |
| 1340 | struct fsf_qtcb_header *header = &req->qtcb->header; |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 1341 | struct fc_els_flogi *plogi; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1342 | |
| 1343 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Martin Petermann | a17c585 | 2009-05-15 13:18:19 +0200 | [diff] [blame] | 1344 | goto out; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1345 | |
| 1346 | switch (header->fsf_status) { |
| 1347 | case FSF_PORT_ALREADY_OPEN: |
| 1348 | break; |
| 1349 | case FSF_ACCESS_DENIED: |
Christof Schmitt | a1ca483 | 2010-09-08 14:39:59 +0200 | [diff] [blame] | 1350 | zfcp_cfdc_port_denied(port, &header->fsf_status_qual); |
| 1351 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1352 | break; |
| 1353 | case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: |
| 1354 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 1355 | "Not enough FCP adapter resources to open " |
Swen Schillig | 7ba58c9 | 2008-10-01 12:42:18 +0200 | [diff] [blame] | 1356 | "remote port 0x%016Lx\n", |
| 1357 | (unsigned long long)port->wwpn); |
Swen Schillig | edaed859 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 1358 | zfcp_erp_set_port_status(port, |
| 1359 | ZFCP_STATUS_COMMON_ERP_FAILED); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1360 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1361 | break; |
| 1362 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 1363 | switch (header->fsf_status_qual.word[0]) { |
| 1364 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
| 1365 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1366 | case FSF_SQ_NO_RETRY_POSSIBLE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1367 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1368 | break; |
| 1369 | } |
| 1370 | break; |
| 1371 | case FSF_GOOD: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1372 | port->handle = header->port_handle; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1373 | atomic_set_mask(ZFCP_STATUS_COMMON_OPEN | |
| 1374 | ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); |
Andreas Herrmann | d736a27 | 2005-06-13 13:23:57 +0200 | [diff] [blame] | 1375 | atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | |
| 1376 | ZFCP_STATUS_COMMON_ACCESS_BOXED, |
| 1377 | &port->status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1378 | /* check whether D_ID has changed during open */ |
| 1379 | /* |
| 1380 | * FIXME: This check is not airtight, as the FCP channel does |
| 1381 | * not monitor closures of target port connections caused on |
| 1382 | * the remote side. Thus, they might miss out on invalidating |
| 1383 | * locally cached WWPNs (and other N_Port parameters) of gone |
| 1384 | * target ports. So, our heroic attempt to make things safe |
| 1385 | * could be undermined by 'open port' response data tagged with |
| 1386 | * obsolete WWPNs. Another reason to monitor potential |
| 1387 | * connection closures ourself at least (by interpreting |
| 1388 | * incoming ELS' and unsolicited status). It just crosses my |
| 1389 | * mind that one should be able to cross-check by means of |
| 1390 | * another GID_PN straight after a port has been opened. |
| 1391 | * Alternately, an ADISC/PDISC ELS should suffice, as well. |
| 1392 | */ |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 1393 | plogi = (struct fc_els_flogi *) req->qtcb->bottom.support.els; |
Christof Schmitt | 39eb7e9 | 2008-12-19 16:57:01 +0100 | [diff] [blame] | 1394 | if (req->qtcb->bottom.support.els1_length >= |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 1395 | FSF_PLOGI_MIN_LEN) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1396 | zfcp_fc_plogi_evaluate(port, plogi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1397 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1398 | case FSF_UNKNOWN_OP_SUBTYPE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1399 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1400 | break; |
| 1401 | } |
Martin Petermann | a17c585 | 2009-05-15 13:18:19 +0200 | [diff] [blame] | 1402 | |
| 1403 | out: |
Christof Schmitt | 615f59e | 2010-02-17 11:18:56 +0100 | [diff] [blame] | 1404 | put_device(&port->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1405 | } |
| 1406 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1407 | /** |
| 1408 | * zfcp_fsf_open_port - create and send open port request |
| 1409 | * @erp_action: pointer to struct zfcp_erp_action |
| 1410 | * Returns: 0 on success, error otherwise |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1411 | */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1412 | int zfcp_fsf_open_port(struct zfcp_erp_action *erp_action) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1413 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1414 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Martin Petermann | a17c585 | 2009-05-15 13:18:19 +0200 | [diff] [blame] | 1415 | struct zfcp_port *port = erp_action->port; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1416 | struct zfcp_fsf_req *req; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1417 | int retval = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1418 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1419 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1420 | if (zfcp_qdio_sbal_get(qdio)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1421 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1422 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1423 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 1424 | SBAL_SFLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1425 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1426 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1427 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1428 | retval = PTR_ERR(req); |
| 1429 | goto out; |
| 1430 | } |
| 1431 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1432 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1433 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1434 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1435 | req->handler = zfcp_fsf_open_port_handler; |
Christof Schmitt | 800c0ca | 2009-11-24 16:54:12 +0100 | [diff] [blame] | 1436 | hton24(req->qtcb->bottom.support.d_id, port->d_id); |
Martin Petermann | a17c585 | 2009-05-15 13:18:19 +0200 | [diff] [blame] | 1437 | req->data = port; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1438 | req->erp_action = erp_action; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1439 | erp_action->fsf_req_id = req->req_id; |
Christof Schmitt | 615f59e | 2010-02-17 11:18:56 +0100 | [diff] [blame] | 1440 | get_device(&port->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1441 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1442 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1443 | retval = zfcp_fsf_req_send(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1444 | if (retval) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1445 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1446 | erp_action->fsf_req_id = 0; |
Christof Schmitt | 615f59e | 2010-02-17 11:18:56 +0100 | [diff] [blame] | 1447 | put_device(&port->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1448 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1449 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1450 | spin_unlock_irq(&qdio->req_q_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1451 | return retval; |
| 1452 | } |
| 1453 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1454 | static void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1455 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1456 | struct zfcp_port *port = req->data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1457 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1458 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 1459 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1460 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1461 | switch (req->qtcb->header.fsf_status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1462 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 1463 | zfcp_erp_adapter_reopen(port->adapter, 0, "fscph_1"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1464 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1465 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1466 | case FSF_ADAPTER_STATUS_AVAILABLE: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1467 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1468 | case FSF_GOOD: |
Swen Schillig | edaed859 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 1469 | zfcp_erp_clear_port_status(port, ZFCP_STATUS_COMMON_OPEN); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1470 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1471 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1472 | } |
| 1473 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1474 | /** |
| 1475 | * zfcp_fsf_close_port - create and send close port request |
| 1476 | * @erp_action: pointer to struct zfcp_erp_action |
| 1477 | * Returns: 0 on success, error otherwise |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1478 | */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1479 | int zfcp_fsf_close_port(struct zfcp_erp_action *erp_action) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1480 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1481 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1482 | struct zfcp_fsf_req *req; |
| 1483 | int retval = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1484 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1485 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1486 | if (zfcp_qdio_sbal_get(qdio)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1487 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1488 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1489 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 1490 | SBAL_SFLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1491 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1492 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1493 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1494 | retval = PTR_ERR(req); |
| 1495 | goto out; |
| 1496 | } |
| 1497 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1498 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1499 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1500 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1501 | req->handler = zfcp_fsf_close_port_handler; |
| 1502 | req->data = erp_action->port; |
| 1503 | req->erp_action = erp_action; |
| 1504 | req->qtcb->header.port_handle = erp_action->port->handle; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1505 | erp_action->fsf_req_id = req->req_id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1506 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1507 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1508 | retval = zfcp_fsf_req_send(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1509 | if (retval) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1510 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1511 | erp_action->fsf_req_id = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1512 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1513 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1514 | spin_unlock_irq(&qdio->req_q_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1515 | return retval; |
| 1516 | } |
| 1517 | |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1518 | static void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req) |
| 1519 | { |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1520 | struct zfcp_fc_wka_port *wka_port = req->data; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1521 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 1522 | |
| 1523 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) { |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1524 | wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1525 | goto out; |
| 1526 | } |
| 1527 | |
| 1528 | switch (header->fsf_status) { |
| 1529 | case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: |
| 1530 | dev_warn(&req->adapter->ccw_device->dev, |
| 1531 | "Opening WKA port 0x%x failed\n", wka_port->d_id); |
Christof Schmitt | dceab65 | 2009-05-15 13:18:18 +0200 | [diff] [blame] | 1532 | /* fall through */ |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1533 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 1534 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Christof Schmitt | dceab65 | 2009-05-15 13:18:18 +0200 | [diff] [blame] | 1535 | /* fall through */ |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1536 | case FSF_ACCESS_DENIED: |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1537 | wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1538 | break; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1539 | case FSF_GOOD: |
| 1540 | wka_port->handle = header->port_handle; |
Swen Schillig | 27f492c | 2009-07-13 15:06:13 +0200 | [diff] [blame] | 1541 | /* fall through */ |
| 1542 | case FSF_PORT_ALREADY_OPEN: |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1543 | wka_port->status = ZFCP_FC_WKA_PORT_ONLINE; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1544 | } |
| 1545 | out: |
| 1546 | wake_up(&wka_port->completion_wq); |
| 1547 | } |
| 1548 | |
| 1549 | /** |
| 1550 | * zfcp_fsf_open_wka_port - create and send open wka-port request |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1551 | * @wka_port: pointer to struct zfcp_fc_wka_port |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1552 | * Returns: 0 on success, error otherwise |
| 1553 | */ |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1554 | int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *wka_port) |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1555 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1556 | struct zfcp_qdio *qdio = wka_port->adapter->qdio; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1557 | struct zfcp_fsf_req *req; |
| 1558 | int retval = -EIO; |
| 1559 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1560 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1561 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1562 | goto out; |
| 1563 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1564 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 1565 | SBAL_SFLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1566 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1567 | |
Tobias Klauser | 4e7d7af | 2011-02-22 19:54:38 +0100 | [diff] [blame] | 1568 | if (IS_ERR(req)) { |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1569 | retval = PTR_ERR(req); |
| 1570 | goto out; |
| 1571 | } |
| 1572 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1573 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1574 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1575 | |
| 1576 | req->handler = zfcp_fsf_open_wka_port_handler; |
Christof Schmitt | 800c0ca | 2009-11-24 16:54:12 +0100 | [diff] [blame] | 1577 | hton24(req->qtcb->bottom.support.d_id, wka_port->d_id); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1578 | req->data = wka_port; |
| 1579 | |
| 1580 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
| 1581 | retval = zfcp_fsf_req_send(req); |
| 1582 | if (retval) |
| 1583 | zfcp_fsf_req_free(req); |
| 1584 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1585 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1586 | return retval; |
| 1587 | } |
| 1588 | |
| 1589 | static void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req) |
| 1590 | { |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1591 | struct zfcp_fc_wka_port *wka_port = req->data; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1592 | |
| 1593 | if (req->qtcb->header.fsf_status == FSF_PORT_HANDLE_NOT_VALID) { |
| 1594 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 1595 | zfcp_erp_adapter_reopen(wka_port->adapter, 0, "fscwph1"); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1596 | } |
| 1597 | |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1598 | wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1599 | wake_up(&wka_port->completion_wq); |
| 1600 | } |
| 1601 | |
| 1602 | /** |
| 1603 | * zfcp_fsf_close_wka_port - create and send close wka port request |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1604 | * @wka_port: WKA port to open |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1605 | * Returns: 0 on success, error otherwise |
| 1606 | */ |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1607 | int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *wka_port) |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1608 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1609 | struct zfcp_qdio *qdio = wka_port->adapter->qdio; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1610 | struct zfcp_fsf_req *req; |
| 1611 | int retval = -EIO; |
| 1612 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1613 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1614 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1615 | goto out; |
| 1616 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1617 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 1618 | SBAL_SFLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1619 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1620 | |
Tobias Klauser | 4e7d7af | 2011-02-22 19:54:38 +0100 | [diff] [blame] | 1621 | if (IS_ERR(req)) { |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1622 | retval = PTR_ERR(req); |
| 1623 | goto out; |
| 1624 | } |
| 1625 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1626 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1627 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1628 | |
| 1629 | req->handler = zfcp_fsf_close_wka_port_handler; |
| 1630 | req->data = wka_port; |
| 1631 | req->qtcb->header.port_handle = wka_port->handle; |
| 1632 | |
| 1633 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
| 1634 | retval = zfcp_fsf_req_send(req); |
| 1635 | if (retval) |
| 1636 | zfcp_fsf_req_free(req); |
| 1637 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1638 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1639 | return retval; |
| 1640 | } |
| 1641 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1642 | static void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1643 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1644 | struct zfcp_port *port = req->data; |
| 1645 | struct fsf_qtcb_header *header = &req->qtcb->header; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1646 | struct scsi_device *sdev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1647 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1648 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Christof Schmitt | a5b11dd | 2009-03-02 13:08:54 +0100 | [diff] [blame] | 1649 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1650 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1651 | switch (header->fsf_status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1652 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 1653 | zfcp_erp_adapter_reopen(port->adapter, 0, "fscpph1"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1654 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1655 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1656 | case FSF_ACCESS_DENIED: |
Christof Schmitt | a1ca483 | 2010-09-08 14:39:59 +0200 | [diff] [blame] | 1657 | zfcp_cfdc_port_denied(port, &header->fsf_status_qual); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1658 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1659 | case FSF_PORT_BOXED: |
Christof Schmitt | 5c815d1 | 2008-03-10 16:18:54 +0100 | [diff] [blame] | 1660 | /* can't use generic zfcp_erp_modify_port_status because |
| 1661 | * ZFCP_STATUS_COMMON_OPEN must not be reset for the port */ |
| 1662 | atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1663 | shost_for_each_device(sdev, port->adapter->scsi_host) |
| 1664 | if (sdev_to_zfcp(sdev)->port == port) |
| 1665 | atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, |
| 1666 | &sdev_to_zfcp(sdev)->status); |
Swen Schillig | edaed859 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 1667 | zfcp_erp_set_port_status(port, ZFCP_STATUS_COMMON_ACCESS_BOXED); |
| 1668 | zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 1669 | "fscpph2"); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 1670 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1671 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1672 | case FSF_ADAPTER_STATUS_AVAILABLE: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1673 | switch (header->fsf_status_qual.word[0]) { |
| 1674 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1675 | /* fall through */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1676 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1677 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1678 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1679 | } |
| 1680 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1681 | case FSF_GOOD: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1682 | /* can't use generic zfcp_erp_modify_port_status because |
| 1683 | * ZFCP_STATUS_COMMON_OPEN must not be reset for the port |
| 1684 | */ |
| 1685 | atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1686 | shost_for_each_device(sdev, port->adapter->scsi_host) |
| 1687 | if (sdev_to_zfcp(sdev)->port == port) |
| 1688 | atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, |
| 1689 | &sdev_to_zfcp(sdev)->status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1690 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1691 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1692 | } |
| 1693 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1694 | /** |
| 1695 | * zfcp_fsf_close_physical_port - close physical port |
| 1696 | * @erp_action: pointer to struct zfcp_erp_action |
| 1697 | * Returns: 0 on success |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1698 | */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1699 | int zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1700 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1701 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1702 | struct zfcp_fsf_req *req; |
| 1703 | int retval = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1704 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1705 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1706 | if (zfcp_qdio_sbal_get(qdio)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1707 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1708 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1709 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PHYSICAL_PORT, |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 1710 | SBAL_SFLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1711 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1712 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1713 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1714 | retval = PTR_ERR(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1715 | goto out; |
| 1716 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1717 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1718 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1719 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1720 | |
| 1721 | req->data = erp_action->port; |
| 1722 | req->qtcb->header.port_handle = erp_action->port->handle; |
| 1723 | req->erp_action = erp_action; |
| 1724 | req->handler = zfcp_fsf_close_physical_port_handler; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1725 | erp_action->fsf_req_id = req->req_id; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1726 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1727 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1728 | retval = zfcp_fsf_req_send(req); |
| 1729 | if (retval) { |
| 1730 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1731 | erp_action->fsf_req_id = 0; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1732 | } |
| 1733 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1734 | spin_unlock_irq(&qdio->req_q_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1735 | return retval; |
| 1736 | } |
| 1737 | |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1738 | static void zfcp_fsf_open_lun_handler(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1739 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1740 | struct zfcp_adapter *adapter = req->adapter; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1741 | struct scsi_device *sdev = req->data; |
| 1742 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1743 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 1744 | struct fsf_qtcb_bottom_support *bottom = &req->qtcb->bottom.support; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1745 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1746 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 1747 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1748 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1749 | atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | |
Heiko Carstens | b64ddf9 | 2007-05-08 11:19:57 +0200 | [diff] [blame] | 1750 | ZFCP_STATUS_COMMON_ACCESS_BOXED | |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1751 | ZFCP_STATUS_LUN_SHARED | |
| 1752 | ZFCP_STATUS_LUN_READONLY, |
| 1753 | &zfcp_sdev->status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1754 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1755 | switch (header->fsf_status) { |
| 1756 | |
| 1757 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 1758 | zfcp_erp_adapter_reopen(adapter, 0, "fsouh_1"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1759 | /* fall through */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1760 | case FSF_LUN_ALREADY_OPEN: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1761 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1762 | case FSF_ACCESS_DENIED: |
Christof Schmitt | a1ca483 | 2010-09-08 14:39:59 +0200 | [diff] [blame] | 1763 | zfcp_cfdc_lun_denied(sdev, &header->fsf_status_qual); |
| 1764 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1765 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1766 | case FSF_PORT_BOXED: |
Swen Schillig | edaed859 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 1767 | zfcp_erp_set_port_status(zfcp_sdev->port, |
| 1768 | ZFCP_STATUS_COMMON_ACCESS_BOXED); |
| 1769 | zfcp_erp_port_reopen(zfcp_sdev->port, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 1770 | ZFCP_STATUS_COMMON_ERP_FAILED, "fsouh_2"); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 1771 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1772 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1773 | case FSF_LUN_SHARING_VIOLATION: |
Christof Schmitt | a1ca483 | 2010-09-08 14:39:59 +0200 | [diff] [blame] | 1774 | zfcp_cfdc_lun_shrng_vltn(sdev, &header->fsf_status_qual); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1775 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1776 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1777 | case FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1778 | dev_warn(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 1779 | "No handle is available for LUN " |
| 1780 | "0x%016Lx on port 0x%016Lx\n", |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1781 | (unsigned long long)zfcp_scsi_dev_lun(sdev), |
| 1782 | (unsigned long long)zfcp_sdev->port->wwpn); |
Swen Schillig | edaed859 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 1783 | zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_ERP_FAILED); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1784 | /* fall through */ |
| 1785 | case FSF_INVALID_COMMAND_OPTION: |
| 1786 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1787 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1788 | case FSF_ADAPTER_STATUS_AVAILABLE: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1789 | switch (header->fsf_status_qual.word[0]) { |
| 1790 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1791 | zfcp_fc_test_link(zfcp_sdev->port); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1792 | /* fall through */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1793 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1794 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1795 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1796 | } |
| 1797 | break; |
| 1798 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1799 | case FSF_GOOD: |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1800 | zfcp_sdev->lun_handle = header->lun_handle; |
| 1801 | atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &zfcp_sdev->status); |
Christof Schmitt | a1ca483 | 2010-09-08 14:39:59 +0200 | [diff] [blame] | 1802 | zfcp_cfdc_open_lun_eval(sdev, bottom); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1803 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1804 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1805 | } |
| 1806 | |
| 1807 | /** |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1808 | * zfcp_fsf_open_lun - open LUN |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1809 | * @erp_action: pointer to struct zfcp_erp_action |
| 1810 | * Returns: 0 on success, error otherwise |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1811 | */ |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1812 | int zfcp_fsf_open_lun(struct zfcp_erp_action *erp_action) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1813 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1814 | struct zfcp_adapter *adapter = erp_action->adapter; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1815 | struct zfcp_qdio *qdio = adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1816 | struct zfcp_fsf_req *req; |
| 1817 | int retval = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1818 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1819 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1820 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1821 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1822 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1823 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_LUN, |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 1824 | SBAL_SFLAGS0_TYPE_READ, |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 1825 | adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1826 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1827 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1828 | retval = PTR_ERR(req); |
| 1829 | goto out; |
Christof Schmitt | ba17242 | 2007-12-20 12:30:26 +0100 | [diff] [blame] | 1830 | } |
| 1831 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1832 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1833 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1834 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1835 | req->qtcb->header.port_handle = erp_action->port->handle; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1836 | req->qtcb->bottom.support.fcp_lun = zfcp_scsi_dev_lun(erp_action->sdev); |
| 1837 | req->handler = zfcp_fsf_open_lun_handler; |
| 1838 | req->data = erp_action->sdev; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1839 | req->erp_action = erp_action; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1840 | erp_action->fsf_req_id = req->req_id; |
Andreas Herrmann | 059c97d | 2005-09-13 21:47:52 +0200 | [diff] [blame] | 1841 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1842 | if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE)) |
| 1843 | req->qtcb->bottom.support.option = FSF_OPEN_LUN_SUPPRESS_BOXING; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1844 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1845 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1846 | retval = zfcp_fsf_req_send(req); |
| 1847 | if (retval) { |
| 1848 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1849 | erp_action->fsf_req_id = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1850 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1851 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1852 | spin_unlock_irq(&qdio->req_q_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1853 | return retval; |
| 1854 | } |
| 1855 | |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1856 | static void zfcp_fsf_close_lun_handler(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1857 | { |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1858 | struct scsi_device *sdev = req->data; |
| 1859 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1860 | |
| 1861 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 1862 | return; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1863 | |
| 1864 | switch (req->qtcb->header.fsf_status) { |
| 1865 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 1866 | zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, "fscuh_1"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1867 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1868 | break; |
| 1869 | case FSF_LUN_HANDLE_NOT_VALID: |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 1870 | zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fscuh_2"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1871 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1872 | break; |
| 1873 | case FSF_PORT_BOXED: |
Swen Schillig | edaed859 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 1874 | zfcp_erp_set_port_status(zfcp_sdev->port, |
| 1875 | ZFCP_STATUS_COMMON_ACCESS_BOXED); |
| 1876 | zfcp_erp_port_reopen(zfcp_sdev->port, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 1877 | ZFCP_STATUS_COMMON_ERP_FAILED, "fscuh_3"); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 1878 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1879 | break; |
| 1880 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 1881 | switch (req->qtcb->header.fsf_status_qual.word[0]) { |
| 1882 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1883 | zfcp_fc_test_link(zfcp_sdev->port); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1884 | /* fall through */ |
| 1885 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
| 1886 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1887 | break; |
| 1888 | } |
| 1889 | break; |
| 1890 | case FSF_GOOD: |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1891 | atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, &zfcp_sdev->status); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1892 | break; |
| 1893 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1894 | } |
| 1895 | |
| 1896 | /** |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1897 | * zfcp_fsf_close_LUN - close LUN |
| 1898 | * @erp_action: pointer to erp_action triggering the "close LUN" |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1899 | * Returns: 0 on success, error otherwise |
| 1900 | */ |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1901 | int zfcp_fsf_close_lun(struct zfcp_erp_action *erp_action) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1902 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1903 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1904 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(erp_action->sdev); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1905 | struct zfcp_fsf_req *req; |
| 1906 | int retval = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1907 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1908 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1909 | if (zfcp_qdio_sbal_get(qdio)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1910 | goto out; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1911 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1912 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_LUN, |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 1913 | SBAL_SFLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1914 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1915 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1916 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1917 | retval = PTR_ERR(req); |
| 1918 | goto out; |
| 1919 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1920 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1921 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1922 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1923 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1924 | req->qtcb->header.port_handle = erp_action->port->handle; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1925 | req->qtcb->header.lun_handle = zfcp_sdev->lun_handle; |
| 1926 | req->handler = zfcp_fsf_close_lun_handler; |
| 1927 | req->data = erp_action->sdev; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1928 | req->erp_action = erp_action; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1929 | erp_action->fsf_req_id = req->req_id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1930 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1931 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1932 | retval = zfcp_fsf_req_send(req); |
| 1933 | if (retval) { |
| 1934 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1935 | erp_action->fsf_req_id = 0; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1936 | } |
| 1937 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1938 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1939 | return retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1940 | } |
| 1941 | |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 1942 | static void zfcp_fsf_update_lat(struct fsf_latency_record *lat_rec, u32 lat) |
| 1943 | { |
| 1944 | lat_rec->sum += lat; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1945 | lat_rec->min = min(lat_rec->min, lat); |
| 1946 | lat_rec->max = max(lat_rec->max, lat); |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 1947 | } |
| 1948 | |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1949 | static void zfcp_fsf_req_trace(struct zfcp_fsf_req *req, struct scsi_cmnd *scsi) |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 1950 | { |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1951 | struct fsf_qual_latency_info *lat_in; |
| 1952 | struct latency_cont *lat = NULL; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1953 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(scsi->device); |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1954 | struct zfcp_blk_drv_data blktrc; |
| 1955 | int ticks = req->adapter->timer_ticks; |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 1956 | |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1957 | lat_in = &req->qtcb->prefix.prot_status_qual.latency_info; |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 1958 | |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1959 | blktrc.flags = 0; |
| 1960 | blktrc.magic = ZFCP_BLK_DRV_DATA_MAGIC; |
| 1961 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
| 1962 | blktrc.flags |= ZFCP_BLK_REQ_ERROR; |
Swen Schillig | 706eca4 | 2010-07-16 15:37:38 +0200 | [diff] [blame] | 1963 | blktrc.inb_usage = 0; |
Christof Schmitt | 34c2b71 | 2010-02-17 11:18:59 +0100 | [diff] [blame] | 1964 | blktrc.outb_usage = req->qdio_req.qdio_outb_usage; |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1965 | |
Christof Schmitt | 5bbf297 | 2010-04-01 13:04:08 +0200 | [diff] [blame] | 1966 | if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA && |
| 1967 | !(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1968 | blktrc.flags |= ZFCP_BLK_LAT_VALID; |
| 1969 | blktrc.channel_lat = lat_in->channel_lat * ticks; |
| 1970 | blktrc.fabric_lat = lat_in->fabric_lat * ticks; |
| 1971 | |
| 1972 | switch (req->qtcb->bottom.io.data_direction) { |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 1973 | case FSF_DATADIR_DIF_READ_STRIP: |
| 1974 | case FSF_DATADIR_DIF_READ_CONVERT: |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1975 | case FSF_DATADIR_READ: |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1976 | lat = &zfcp_sdev->latencies.read; |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1977 | break; |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 1978 | case FSF_DATADIR_DIF_WRITE_INSERT: |
| 1979 | case FSF_DATADIR_DIF_WRITE_CONVERT: |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1980 | case FSF_DATADIR_WRITE: |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1981 | lat = &zfcp_sdev->latencies.write; |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1982 | break; |
| 1983 | case FSF_DATADIR_CMND: |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1984 | lat = &zfcp_sdev->latencies.cmd; |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1985 | break; |
| 1986 | } |
| 1987 | |
| 1988 | if (lat) { |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1989 | spin_lock(&zfcp_sdev->latencies.lock); |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1990 | zfcp_fsf_update_lat(&lat->channel, lat_in->channel_lat); |
| 1991 | zfcp_fsf_update_lat(&lat->fabric, lat_in->fabric_lat); |
| 1992 | lat->counter++; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1993 | spin_unlock(&zfcp_sdev->latencies.lock); |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1994 | } |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 1995 | } |
| 1996 | |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1997 | blk_add_driver_data(scsi->request->q, scsi->request, &blktrc, |
| 1998 | sizeof(blktrc)); |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 1999 | } |
| 2000 | |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 2001 | static void zfcp_fsf_fcp_handler_common(struct zfcp_fsf_req *req) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2002 | { |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2003 | struct scsi_cmnd *scmnd = req->data; |
| 2004 | struct scsi_device *sdev = scmnd->device; |
| 2005 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2006 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 2007 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2008 | if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 2009 | return; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2010 | |
| 2011 | switch (header->fsf_status) { |
| 2012 | case FSF_HANDLE_MISMATCH: |
| 2013 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 2014 | zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, "fssfch1"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2015 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2016 | break; |
| 2017 | case FSF_FCPLUN_NOT_VALID: |
| 2018 | case FSF_LUN_HANDLE_NOT_VALID: |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 2019 | zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fssfch2"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2020 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2021 | break; |
| 2022 | case FSF_SERVICE_CLASS_NOT_SUPPORTED: |
| 2023 | zfcp_fsf_class_not_supp(req); |
| 2024 | break; |
| 2025 | case FSF_ACCESS_DENIED: |
Christof Schmitt | a1ca483 | 2010-09-08 14:39:59 +0200 | [diff] [blame] | 2026 | zfcp_cfdc_lun_denied(sdev, &header->fsf_status_qual); |
| 2027 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2028 | break; |
| 2029 | case FSF_DIRECTION_INDICATOR_NOT_VALID: |
| 2030 | dev_err(&req->adapter->ccw_device->dev, |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2031 | "Incorrect direction %d, LUN 0x%016Lx on port " |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 2032 | "0x%016Lx closed\n", |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2033 | req->qtcb->bottom.io.data_direction, |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2034 | (unsigned long long)zfcp_scsi_dev_lun(sdev), |
| 2035 | (unsigned long long)zfcp_sdev->port->wwpn); |
| 2036 | zfcp_erp_adapter_shutdown(zfcp_sdev->port->adapter, 0, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 2037 | "fssfch3"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2038 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2039 | break; |
| 2040 | case FSF_CMND_LENGTH_NOT_VALID: |
| 2041 | dev_err(&req->adapter->ccw_device->dev, |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2042 | "Incorrect CDB length %d, LUN 0x%016Lx on " |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 2043 | "port 0x%016Lx closed\n", |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2044 | req->qtcb->bottom.io.fcp_cmnd_length, |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2045 | (unsigned long long)zfcp_scsi_dev_lun(sdev), |
| 2046 | (unsigned long long)zfcp_sdev->port->wwpn); |
| 2047 | zfcp_erp_adapter_shutdown(zfcp_sdev->port->adapter, 0, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 2048 | "fssfch4"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2049 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2050 | break; |
| 2051 | case FSF_PORT_BOXED: |
Swen Schillig | edaed859 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 2052 | zfcp_erp_set_port_status(zfcp_sdev->port, |
| 2053 | ZFCP_STATUS_COMMON_ACCESS_BOXED); |
| 2054 | zfcp_erp_port_reopen(zfcp_sdev->port, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 2055 | ZFCP_STATUS_COMMON_ERP_FAILED, "fssfch5"); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 2056 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2057 | break; |
| 2058 | case FSF_LUN_BOXED: |
Swen Schillig | edaed859 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 2059 | zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_ACCESS_BOXED); |
| 2060 | zfcp_erp_lun_reopen(sdev, ZFCP_STATUS_COMMON_ERP_FAILED, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 2061 | "fssfch6"); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 2062 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2063 | break; |
| 2064 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 2065 | if (header->fsf_status_qual.word[0] == |
| 2066 | FSF_SQ_INVOKE_LINK_TEST_PROCEDURE) |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2067 | zfcp_fc_test_link(zfcp_sdev->port); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2068 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2069 | break; |
| 2070 | } |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 2071 | } |
| 2072 | |
| 2073 | static void zfcp_fsf_fcp_cmnd_handler(struct zfcp_fsf_req *req) |
| 2074 | { |
| 2075 | struct scsi_cmnd *scpnt; |
| 2076 | struct fcp_resp_with_ext *fcp_rsp; |
| 2077 | unsigned long flags; |
| 2078 | |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 2079 | read_lock_irqsave(&req->adapter->abort_lock, flags); |
| 2080 | |
| 2081 | scpnt = req->data; |
| 2082 | if (unlikely(!scpnt)) { |
| 2083 | read_unlock_irqrestore(&req->adapter->abort_lock, flags); |
| 2084 | return; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2085 | } |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 2086 | |
Swen Schillig | 5bfb2c3 | 2010-11-17 14:23:40 +0100 | [diff] [blame] | 2087 | zfcp_fsf_fcp_handler_common(req); |
| 2088 | |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 2089 | if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { |
| 2090 | set_host_byte(scpnt, DID_TRANSPORT_DISRUPTED); |
| 2091 | goto skip_fsfstatus; |
| 2092 | } |
| 2093 | |
| 2094 | switch (req->qtcb->header.fsf_status) { |
| 2095 | case FSF_INCONSISTENT_PROT_DATA: |
| 2096 | case FSF_INVALID_PROT_PARM: |
| 2097 | set_host_byte(scpnt, DID_ERROR); |
| 2098 | goto skip_fsfstatus; |
| 2099 | case FSF_BLOCK_GUARD_CHECK_FAILURE: |
| 2100 | zfcp_scsi_dif_sense_error(scpnt, 0x1); |
| 2101 | goto skip_fsfstatus; |
| 2102 | case FSF_APP_TAG_CHECK_FAILURE: |
| 2103 | zfcp_scsi_dif_sense_error(scpnt, 0x2); |
| 2104 | goto skip_fsfstatus; |
| 2105 | case FSF_REF_TAG_CHECK_FAILURE: |
| 2106 | zfcp_scsi_dif_sense_error(scpnt, 0x3); |
| 2107 | goto skip_fsfstatus; |
| 2108 | } |
| 2109 | fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; |
| 2110 | zfcp_fc_eval_fcp_rsp(fcp_rsp, scpnt); |
| 2111 | |
| 2112 | skip_fsfstatus: |
| 2113 | zfcp_fsf_req_trace(req, scpnt); |
Swen Schillig | 250a135 | 2010-12-02 15:16:15 +0100 | [diff] [blame] | 2114 | zfcp_dbf_scsi_result(scpnt, req); |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 2115 | |
| 2116 | scpnt->host_scribble = NULL; |
| 2117 | (scpnt->scsi_done) (scpnt); |
| 2118 | /* |
| 2119 | * We must hold this lock until scsi_done has been called. |
| 2120 | * Otherwise we may call scsi_done after abort regarding this |
| 2121 | * command has completed. |
| 2122 | * Note: scsi_done must not block! |
| 2123 | */ |
| 2124 | read_unlock_irqrestore(&req->adapter->abort_lock, flags); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2125 | } |
| 2126 | |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2127 | static int zfcp_fsf_set_data_dir(struct scsi_cmnd *scsi_cmnd, u32 *data_dir) |
| 2128 | { |
| 2129 | switch (scsi_get_prot_op(scsi_cmnd)) { |
| 2130 | case SCSI_PROT_NORMAL: |
| 2131 | switch (scsi_cmnd->sc_data_direction) { |
| 2132 | case DMA_NONE: |
| 2133 | *data_dir = FSF_DATADIR_CMND; |
| 2134 | break; |
| 2135 | case DMA_FROM_DEVICE: |
| 2136 | *data_dir = FSF_DATADIR_READ; |
| 2137 | break; |
| 2138 | case DMA_TO_DEVICE: |
| 2139 | *data_dir = FSF_DATADIR_WRITE; |
| 2140 | break; |
| 2141 | case DMA_BIDIRECTIONAL: |
| 2142 | return -EINVAL; |
| 2143 | } |
| 2144 | break; |
| 2145 | |
| 2146 | case SCSI_PROT_READ_STRIP: |
| 2147 | *data_dir = FSF_DATADIR_DIF_READ_STRIP; |
| 2148 | break; |
| 2149 | case SCSI_PROT_WRITE_INSERT: |
| 2150 | *data_dir = FSF_DATADIR_DIF_WRITE_INSERT; |
| 2151 | break; |
| 2152 | case SCSI_PROT_READ_PASS: |
| 2153 | *data_dir = FSF_DATADIR_DIF_READ_CONVERT; |
| 2154 | break; |
| 2155 | case SCSI_PROT_WRITE_PASS: |
| 2156 | *data_dir = FSF_DATADIR_DIF_WRITE_CONVERT; |
| 2157 | break; |
| 2158 | default: |
| 2159 | return -EINVAL; |
| 2160 | } |
| 2161 | |
| 2162 | return 0; |
| 2163 | } |
| 2164 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2165 | /** |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2166 | * zfcp_fsf_fcp_cmnd - initiate an FCP command (for a SCSI command) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2167 | * @scsi_cmnd: scsi command to be sent |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2168 | */ |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2169 | int zfcp_fsf_fcp_cmnd(struct scsi_cmnd *scsi_cmnd) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2170 | { |
| 2171 | struct zfcp_fsf_req *req; |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2172 | struct fcp_cmnd *fcp_cmnd; |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 2173 | u8 sbtype = SBAL_SFLAGS0_TYPE_READ; |
Swen Schillig | 86a9668 | 2011-08-15 14:40:32 +0200 | [diff] [blame] | 2174 | int retval = -EIO; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2175 | struct scsi_device *sdev = scsi_cmnd->device; |
| 2176 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); |
| 2177 | struct zfcp_adapter *adapter = zfcp_sdev->port->adapter; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2178 | struct zfcp_qdio *qdio = adapter->qdio; |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2179 | struct fsf_qtcb_bottom_io *io; |
Christof Schmitt | e55f875 | 2010-11-18 14:53:18 +0100 | [diff] [blame] | 2180 | unsigned long flags; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2181 | |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2182 | if (unlikely(!(atomic_read(&zfcp_sdev->status) & |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2183 | ZFCP_STATUS_COMMON_UNBLOCKED))) |
| 2184 | return -EBUSY; |
| 2185 | |
Christof Schmitt | e55f875 | 2010-11-18 14:53:18 +0100 | [diff] [blame] | 2186 | spin_lock_irqsave(&qdio->req_q_lock, flags); |
Swen Schillig | 706eca4 | 2010-07-16 15:37:38 +0200 | [diff] [blame] | 2187 | if (atomic_read(&qdio->req_q_free) <= 0) { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2188 | atomic_inc(&qdio->req_q_full); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2189 | goto out; |
Christof Schmitt | 8fdf30d | 2009-03-02 13:09:01 +0100 | [diff] [blame] | 2190 | } |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2191 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 2192 | if (scsi_cmnd->sc_data_direction == DMA_TO_DEVICE) |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 2193 | sbtype = SBAL_SFLAGS0_TYPE_WRITE; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 2194 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2195 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 2196 | sbtype, adapter->pool.scsi_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2197 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 2198 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2199 | retval = PTR_ERR(req); |
| 2200 | goto out; |
| 2201 | } |
| 2202 | |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2203 | scsi_cmnd->host_scribble = (unsigned char *) req->req_id; |
| 2204 | |
| 2205 | io = &req->qtcb->bottom.io; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2206 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2207 | req->data = scsi_cmnd; |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 2208 | req->handler = zfcp_fsf_fcp_cmnd_handler; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2209 | req->qtcb->header.lun_handle = zfcp_sdev->lun_handle; |
| 2210 | req->qtcb->header.port_handle = zfcp_sdev->port->handle; |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2211 | io->service_class = FSF_CLASS_3; |
| 2212 | io->fcp_cmnd_length = FCP_CMND_LEN; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2213 | |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2214 | if (scsi_get_prot_op(scsi_cmnd) != SCSI_PROT_NORMAL) { |
| 2215 | io->data_block_length = scsi_cmnd->device->sector_size; |
| 2216 | io->ref_tag_value = scsi_get_lba(scsi_cmnd) & 0xFFFFFFFF; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2217 | } |
| 2218 | |
Steffen Maier | cc405ac | 2011-08-15 14:40:30 +0200 | [diff] [blame] | 2219 | if (zfcp_fsf_set_data_dir(scsi_cmnd, &io->data_direction)) |
| 2220 | goto failed_scsi_cmnd; |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2221 | |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2222 | fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; |
Christof Schmitt | 2443c8b | 2011-02-22 19:54:45 +0100 | [diff] [blame] | 2223 | zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd, 0); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2224 | |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2225 | if (scsi_prot_sg_count(scsi_cmnd)) { |
| 2226 | zfcp_qdio_set_data_div(qdio, &req->qdio_req, |
| 2227 | scsi_prot_sg_count(scsi_cmnd)); |
Swen Schillig | 86a9668 | 2011-08-15 14:40:32 +0200 | [diff] [blame] | 2228 | retval = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, |
| 2229 | scsi_prot_sglist(scsi_cmnd)); |
| 2230 | if (retval) |
| 2231 | goto failed_scsi_cmnd; |
| 2232 | io->prot_data_length = zfcp_qdio_real_bytes( |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2233 | scsi_prot_sglist(scsi_cmnd)); |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2234 | } |
| 2235 | |
Swen Schillig | 86a9668 | 2011-08-15 14:40:32 +0200 | [diff] [blame] | 2236 | retval = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, |
| 2237 | scsi_sglist(scsi_cmnd)); |
| 2238 | if (unlikely(retval)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2239 | goto failed_scsi_cmnd; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2240 | |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2241 | zfcp_qdio_set_sbale_last(adapter->qdio, &req->qdio_req); |
Swen Schillig | 86a9668 | 2011-08-15 14:40:32 +0200 | [diff] [blame] | 2242 | if (zfcp_adapter_multi_buffer_active(adapter)) |
| 2243 | zfcp_qdio_set_scount(qdio, &req->qdio_req); |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2244 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2245 | retval = zfcp_fsf_req_send(req); |
| 2246 | if (unlikely(retval)) |
| 2247 | goto failed_scsi_cmnd; |
| 2248 | |
| 2249 | goto out; |
| 2250 | |
| 2251 | failed_scsi_cmnd: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2252 | zfcp_fsf_req_free(req); |
| 2253 | scsi_cmnd->host_scribble = NULL; |
| 2254 | out: |
Christof Schmitt | e55f875 | 2010-11-18 14:53:18 +0100 | [diff] [blame] | 2255 | spin_unlock_irqrestore(&qdio->req_q_lock, flags); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2256 | return retval; |
| 2257 | } |
| 2258 | |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 2259 | static void zfcp_fsf_fcp_task_mgmt_handler(struct zfcp_fsf_req *req) |
| 2260 | { |
| 2261 | struct fcp_resp_with_ext *fcp_rsp; |
| 2262 | struct fcp_resp_rsp_info *rsp_info; |
| 2263 | |
| 2264 | zfcp_fsf_fcp_handler_common(req); |
| 2265 | |
| 2266 | fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; |
| 2267 | rsp_info = (struct fcp_resp_rsp_info *) &fcp_rsp[1]; |
| 2268 | |
| 2269 | if ((rsp_info->rsp_code != FCP_TMF_CMPL) || |
| 2270 | (req->status & ZFCP_STATUS_FSFREQ_ERROR)) |
| 2271 | req->status |= ZFCP_STATUS_FSFREQ_TMFUNCFAILED; |
| 2272 | } |
| 2273 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2274 | /** |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2275 | * zfcp_fsf_fcp_task_mgmt - send SCSI task management command |
| 2276 | * @scmnd: SCSI command to send the task management command for |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2277 | * @tm_flags: unsigned byte for task management flags |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2278 | * Returns: on success pointer to struct fsf_req, NULL otherwise |
| 2279 | */ |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2280 | struct zfcp_fsf_req *zfcp_fsf_fcp_task_mgmt(struct scsi_cmnd *scmnd, |
| 2281 | u8 tm_flags) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2282 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2283 | struct zfcp_fsf_req *req = NULL; |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2284 | struct fcp_cmnd *fcp_cmnd; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2285 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(scmnd->device); |
| 2286 | struct zfcp_qdio *qdio = zfcp_sdev->port->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2287 | |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2288 | if (unlikely(!(atomic_read(&zfcp_sdev->status) & |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2289 | ZFCP_STATUS_COMMON_UNBLOCKED))) |
| 2290 | return NULL; |
| 2291 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 2292 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 2293 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2294 | goto out; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2295 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2296 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 2297 | SBAL_SFLAGS0_TYPE_WRITE, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2298 | qdio->adapter->pool.scsi_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2299 | |
Swen Schillig | 633528c | 2008-11-26 18:07:37 +0100 | [diff] [blame] | 2300 | if (IS_ERR(req)) { |
| 2301 | req = NULL; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2302 | goto out; |
Swen Schillig | 633528c | 2008-11-26 18:07:37 +0100 | [diff] [blame] | 2303 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2304 | |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2305 | req->data = scmnd; |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 2306 | req->handler = zfcp_fsf_fcp_task_mgmt_handler; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2307 | req->qtcb->header.lun_handle = zfcp_sdev->lun_handle; |
| 2308 | req->qtcb->header.port_handle = zfcp_sdev->port->handle; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2309 | req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; |
| 2310 | req->qtcb->bottom.io.service_class = FSF_CLASS_3; |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2311 | req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2312 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 2313 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2314 | |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2315 | fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; |
Christof Schmitt | 2443c8b | 2011-02-22 19:54:45 +0100 | [diff] [blame] | 2316 | zfcp_fc_scsi_to_fcp(fcp_cmnd, scmnd, tm_flags); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2317 | |
| 2318 | zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); |
| 2319 | if (!zfcp_fsf_req_send(req)) |
| 2320 | goto out; |
| 2321 | |
| 2322 | zfcp_fsf_req_free(req); |
| 2323 | req = NULL; |
| 2324 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 2325 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2326 | return req; |
| 2327 | } |
| 2328 | |
| 2329 | static void zfcp_fsf_control_file_handler(struct zfcp_fsf_req *req) |
| 2330 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2331 | } |
| 2332 | |
| 2333 | /** |
| 2334 | * zfcp_fsf_control_file - control file upload/download |
| 2335 | * @adapter: pointer to struct zfcp_adapter |
| 2336 | * @fsf_cfdc: pointer to struct zfcp_fsf_cfdc |
| 2337 | * Returns: on success pointer to struct zfcp_fsf_req, NULL otherwise |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2338 | */ |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2339 | struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter, |
| 2340 | struct zfcp_fsf_cfdc *fsf_cfdc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2341 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2342 | struct zfcp_qdio *qdio = adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2343 | struct zfcp_fsf_req *req = NULL; |
| 2344 | struct fsf_qtcb_bottom_support *bottom; |
Swen Schillig | 86a9668 | 2011-08-15 14:40:32 +0200 | [diff] [blame] | 2345 | int retval = -EIO; |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 2346 | u8 direction; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2347 | |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2348 | if (!(adapter->adapter_features & FSF_FEATURE_CFDC)) |
| 2349 | return ERR_PTR(-EOPNOTSUPP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2350 | |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2351 | switch (fsf_cfdc->command) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2352 | case FSF_QTCB_DOWNLOAD_CONTROL_FILE: |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 2353 | direction = SBAL_SFLAGS0_TYPE_WRITE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2354 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2355 | case FSF_QTCB_UPLOAD_CONTROL_FILE: |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 2356 | direction = SBAL_SFLAGS0_TYPE_READ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2357 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2358 | default: |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2359 | return ERR_PTR(-EINVAL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2360 | } |
| 2361 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 2362 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 2363 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2364 | goto out; |
| 2365 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 2366 | req = zfcp_fsf_req_create(qdio, fsf_cfdc->command, direction, NULL); |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 2367 | if (IS_ERR(req)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2368 | retval = -EPERM; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2369 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2370 | } |
| 2371 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2372 | req->handler = zfcp_fsf_control_file_handler; |
| 2373 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2374 | bottom = &req->qtcb->bottom.support; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2375 | bottom->operation_subtype = FSF_CFDC_OPERATION_SUBTYPE; |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2376 | bottom->option = fsf_cfdc->option; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2377 | |
Swen Schillig | 86a9668 | 2011-08-15 14:40:32 +0200 | [diff] [blame] | 2378 | retval = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, fsf_cfdc->sg); |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame] | 2379 | |
Swen Schillig | 86a9668 | 2011-08-15 14:40:32 +0200 | [diff] [blame] | 2380 | if (retval || |
| 2381 | (zfcp_qdio_real_bytes(fsf_cfdc->sg) != ZFCP_CFDC_MAX_SIZE)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2382 | zfcp_fsf_req_free(req); |
Swen Schillig | 86a9668 | 2011-08-15 14:40:32 +0200 | [diff] [blame] | 2383 | retval = -EIO; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2384 | goto out; |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2385 | } |
Swen Schillig | 86a9668 | 2011-08-15 14:40:32 +0200 | [diff] [blame] | 2386 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
| 2387 | if (zfcp_adapter_multi_buffer_active(adapter)) |
| 2388 | zfcp_qdio_set_scount(qdio, &req->qdio_req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2389 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2390 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
| 2391 | retval = zfcp_fsf_req_send(req); |
| 2392 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 2393 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2394 | |
| 2395 | if (!retval) { |
Swen Schillig | 058b864 | 2009-08-18 15:43:14 +0200 | [diff] [blame] | 2396 | wait_for_completion(&req->completion); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2397 | return req; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2398 | } |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2399 | return ERR_PTR(retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2400 | } |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2401 | |
| 2402 | /** |
| 2403 | * zfcp_fsf_reqid_check - validate req_id contained in SBAL returned by QDIO |
| 2404 | * @adapter: pointer to struct zfcp_adapter |
| 2405 | * @sbal_idx: response queue index of SBAL to be processed |
| 2406 | */ |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2407 | void zfcp_fsf_reqid_check(struct zfcp_qdio *qdio, int sbal_idx) |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2408 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2409 | struct zfcp_adapter *adapter = qdio->adapter; |
Swen Schillig | 706eca4 | 2010-07-16 15:37:38 +0200 | [diff] [blame] | 2410 | struct qdio_buffer *sbal = qdio->res_q[sbal_idx]; |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2411 | struct qdio_buffer_element *sbale; |
| 2412 | struct zfcp_fsf_req *fsf_req; |
Christof Schmitt | b6bd2fb | 2010-02-17 11:18:50 +0100 | [diff] [blame] | 2413 | unsigned long req_id; |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2414 | int idx; |
| 2415 | |
| 2416 | for (idx = 0; idx < QDIO_MAX_ELEMENTS_PER_BUFFER; idx++) { |
| 2417 | |
| 2418 | sbale = &sbal->element[idx]; |
| 2419 | req_id = (unsigned long) sbale->addr; |
Christof Schmitt | b6bd2fb | 2010-02-17 11:18:50 +0100 | [diff] [blame] | 2420 | fsf_req = zfcp_reqlist_find_rm(adapter->req_list, req_id); |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2421 | |
Christof Schmitt | 339f4f4 | 2010-07-16 15:37:43 +0200 | [diff] [blame] | 2422 | if (!fsf_req) { |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2423 | /* |
| 2424 | * Unknown request means that we have potentially memory |
| 2425 | * corruption and must stop the machine immediately. |
| 2426 | */ |
Christof Schmitt | 339f4f4 | 2010-07-16 15:37:43 +0200 | [diff] [blame] | 2427 | zfcp_qdio_siosl(adapter); |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2428 | panic("error: unknown req_id (%lx) on adapter %s.\n", |
| 2429 | req_id, dev_name(&adapter->ccw_device->dev)); |
Christof Schmitt | 339f4f4 | 2010-07-16 15:37:43 +0200 | [diff] [blame] | 2430 | } |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2431 | |
Christof Schmitt | 34c2b71 | 2010-02-17 11:18:59 +0100 | [diff] [blame] | 2432 | fsf_req->qdio_req.sbal_response = sbal_idx; |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2433 | zfcp_fsf_req_complete(fsf_req); |
| 2434 | |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 2435 | if (likely(sbale->eflags & SBAL_EFLAGS_LAST_ENTRY)) |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2436 | break; |
| 2437 | } |
| 2438 | } |
Swen Schillig | a54ca0f | 2010-12-02 15:16:14 +0100 | [diff] [blame] | 2439 | |
| 2440 | struct zfcp_fsf_req *zfcp_fsf_get_req(struct zfcp_qdio *qdio, |
| 2441 | struct qdio_buffer *sbal) |
| 2442 | { |
| 2443 | struct qdio_buffer_element *sbale = &sbal->element[0]; |
| 2444 | u64 req_id = (unsigned long) sbale->addr; |
| 2445 | |
| 2446 | return zfcp_reqlist_find(qdio->adapter->req_list, req_id); |
| 2447 | } |