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 | edaed85 | 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 | edaed85 | 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 | edaed85 | 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 | edaed85 | 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 | edaed85 | 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 | edaed85 | 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 | edaed85 | 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 | edaed85 | 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 | edaed85 | 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 | edaed85 | 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 | 3ec90878 | 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 | edaed85 | 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 | edaed85 | 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 | 3ec90878 | 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 | 39eb7e9a | 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 | 42428f7 | 2009-08-18 15:43:18 +0200 | [diff] [blame] | 939 | u32 feat = adapter->adapter_features; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 940 | int bytes; |
| 941 | |
Christof Schmitt | 39eb7e9a | 2008-12-19 16:57:01 +0100 | [diff] [blame] | 942 | if (!(feat & FSF_FEATURE_ELS_CT_CHAINED_SBALS)) { |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 943 | if (!zfcp_qdio_sg_one_sbale(sg_req) || |
| 944 | !zfcp_qdio_sg_one_sbale(sg_resp)) |
Christof Schmitt | 39eb7e9a | 2008-12-19 16:57:01 +0100 | [diff] [blame] | 945 | return -EOPNOTSUPP; |
| 946 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 947 | zfcp_fsf_setup_ct_els_unchained(adapter->qdio, &req->qdio_req, |
| 948 | sg_req, sg_resp); |
Christof Schmitt | 426f605 | 2009-07-13 15:06:06 +0200 | [diff] [blame] | 949 | return 0; |
| 950 | } |
| 951 | |
| 952 | /* use single, unchained SBAL if it can hold the request */ |
Swen Schillig | 30b6777 | 2010-06-21 10:11:31 +0200 | [diff] [blame] | 953 | if (zfcp_qdio_sg_one_sbale(sg_req) && zfcp_qdio_sg_one_sbale(sg_resp)) { |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 954 | zfcp_fsf_setup_ct_els_unchained(adapter->qdio, &req->qdio_req, |
| 955 | sg_req, sg_resp); |
Christof Schmitt | 39eb7e9a | 2008-12-19 16:57:01 +0100 | [diff] [blame] | 956 | return 0; |
| 957 | } |
| 958 | |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame] | 959 | bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->qdio_req, sg_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 960 | if (bytes <= 0) |
Christof Schmitt | 9072df4 | 2009-07-13 15:06:07 +0200 | [diff] [blame] | 961 | return -EIO; |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 962 | zfcp_qdio_set_sbale_last(adapter->qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 963 | req->qtcb->bottom.support.req_buf_length = bytes; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 964 | zfcp_qdio_skip_to_last_sbale(&req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 965 | |
Christof Schmitt | 34c2b71 | 2010-02-17 11:18:59 +0100 | [diff] [blame] | 966 | bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->qdio_req, |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame] | 967 | sg_resp); |
Christof Schmitt | b1a5898 | 2009-09-24 10:23:21 +0200 | [diff] [blame] | 968 | req->qtcb->bottom.support.resp_buf_length = bytes; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 969 | if (bytes <= 0) |
Christof Schmitt | 9072df4 | 2009-07-13 15:06:07 +0200 | [diff] [blame] | 970 | return -EIO; |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 971 | zfcp_qdio_set_sbale_last(adapter->qdio, &req->qdio_req); |
Christof Schmitt | 98fc4d5 | 2009-08-18 15:43:26 +0200 | [diff] [blame] | 972 | |
Christof Schmitt | b1a5898 | 2009-09-24 10:23:21 +0200 | [diff] [blame] | 973 | return 0; |
| 974 | } |
| 975 | |
| 976 | static int zfcp_fsf_setup_ct_els(struct zfcp_fsf_req *req, |
| 977 | struct scatterlist *sg_req, |
| 978 | struct scatterlist *sg_resp, |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame] | 979 | unsigned int timeout) |
Christof Schmitt | b1a5898 | 2009-09-24 10:23:21 +0200 | [diff] [blame] | 980 | { |
| 981 | int ret; |
| 982 | |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame] | 983 | ret = zfcp_fsf_setup_ct_els_sbals(req, sg_req, sg_resp); |
Christof Schmitt | b1a5898 | 2009-09-24 10:23:21 +0200 | [diff] [blame] | 984 | if (ret) |
| 985 | return ret; |
| 986 | |
Christof Schmitt | 98fc4d5 | 2009-08-18 15:43:26 +0200 | [diff] [blame] | 987 | /* common settings for ct/gs and els requests */ |
Swen Schillig | 51375ee | 2010-01-14 17:19:02 +0100 | [diff] [blame] | 988 | if (timeout > 255) |
| 989 | timeout = 255; /* max value accepted by hardware */ |
Christof Schmitt | 98fc4d5 | 2009-08-18 15:43:26 +0200 | [diff] [blame] | 990 | req->qtcb->bottom.support.service_class = FSF_CLASS_3; |
Swen Schillig | 51375ee | 2010-01-14 17:19:02 +0100 | [diff] [blame] | 991 | req->qtcb->bottom.support.timeout = timeout; |
| 992 | zfcp_fsf_start_timer(req, (timeout + 10) * HZ); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 993 | |
| 994 | return 0; |
| 995 | } |
| 996 | |
| 997 | /** |
| 998 | * zfcp_fsf_send_ct - initiate a Generic Service request (FC-GS) |
| 999 | * @ct: pointer to struct zfcp_send_ct with data for request |
| 1000 | * @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] | 1001 | */ |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 1002 | int zfcp_fsf_send_ct(struct zfcp_fc_wka_port *wka_port, |
Swen Schillig | 51375ee | 2010-01-14 17:19:02 +0100 | [diff] [blame] | 1003 | struct zfcp_fsf_ct_els *ct, mempool_t *pool, |
| 1004 | unsigned int timeout) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1005 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1006 | struct zfcp_qdio *qdio = wka_port->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1007 | struct zfcp_fsf_req *req; |
| 1008 | int ret = -EIO; |
| 1009 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1010 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1011 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1012 | goto out; |
| 1013 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1014 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_GENERIC, |
Jan Glauber | 3ec90878 | 2011-06-06 14:14:40 +0200 | [diff] [blame^] | 1015 | SBAL_SFLAGS0_TYPE_WRITE_READ, pool); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1016 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1017 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1018 | ret = PTR_ERR(req); |
| 1019 | goto out; |
| 1020 | } |
| 1021 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1022 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame] | 1023 | ret = zfcp_fsf_setup_ct_els(req, ct->req, ct->resp, timeout); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1024 | if (ret) |
| 1025 | goto failed_send; |
| 1026 | |
| 1027 | req->handler = zfcp_fsf_send_ct_handler; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1028 | req->qtcb->header.port_handle = wka_port->handle; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1029 | req->data = ct; |
| 1030 | |
Swen Schillig | 2c55b75 | 2010-12-02 15:16:13 +0100 | [diff] [blame] | 1031 | zfcp_dbf_san_req("fssct_1", req, wka_port->d_id); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1032 | |
| 1033 | ret = zfcp_fsf_req_send(req); |
| 1034 | if (ret) |
| 1035 | goto failed_send; |
| 1036 | |
| 1037 | goto out; |
| 1038 | |
| 1039 | failed_send: |
| 1040 | zfcp_fsf_req_free(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1041 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1042 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1043 | return ret; |
| 1044 | } |
| 1045 | |
| 1046 | static void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req) |
| 1047 | { |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 1048 | struct zfcp_fsf_ct_els *send_els = req->data; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1049 | struct zfcp_port *port = send_els->port; |
| 1050 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 1051 | |
| 1052 | send_els->status = -EINVAL; |
| 1053 | |
| 1054 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
| 1055 | goto skip_fsfstatus; |
| 1056 | |
| 1057 | switch (header->fsf_status) { |
| 1058 | case FSF_GOOD: |
Swen Schillig | 2c55b75 | 2010-12-02 15:16:13 +0100 | [diff] [blame] | 1059 | zfcp_dbf_san_res("fsselh1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1060 | send_els->status = 0; |
| 1061 | break; |
| 1062 | case FSF_SERVICE_CLASS_NOT_SUPPORTED: |
| 1063 | zfcp_fsf_class_not_supp(req); |
| 1064 | break; |
| 1065 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 1066 | switch (header->fsf_status_qual.word[0]){ |
| 1067 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1068 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
| 1069 | case FSF_SQ_RETRY_IF_POSSIBLE: |
| 1070 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1071 | break; |
| 1072 | } |
| 1073 | break; |
| 1074 | case FSF_ELS_COMMAND_REJECTED: |
| 1075 | case FSF_PAYLOAD_SIZE_MISMATCH: |
| 1076 | case FSF_REQUEST_SIZE_TOO_LARGE: |
| 1077 | case FSF_RESPONSE_SIZE_TOO_LARGE: |
| 1078 | break; |
| 1079 | case FSF_ACCESS_DENIED: |
Christof Schmitt | a1ca483 | 2010-09-08 14:39:59 +0200 | [diff] [blame] | 1080 | if (port) { |
| 1081 | zfcp_cfdc_port_denied(port, &header->fsf_status_qual); |
| 1082 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1083 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1084 | break; |
| 1085 | case FSF_SBAL_MISMATCH: |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 1086 | /* should never occur, avoided in zfcp_fsf_send_els */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1087 | /* fall through */ |
| 1088 | default: |
| 1089 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1090 | break; |
| 1091 | } |
| 1092 | skip_fsfstatus: |
| 1093 | if (send_els->handler) |
| 1094 | send_els->handler(send_els->handler_data); |
| 1095 | } |
| 1096 | |
| 1097 | /** |
| 1098 | * zfcp_fsf_send_els - initiate an ELS command (FC-FS) |
| 1099 | * @els: pointer to struct zfcp_send_els with data for the command |
| 1100 | */ |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 1101 | int zfcp_fsf_send_els(struct zfcp_adapter *adapter, u32 d_id, |
Swen Schillig | 51375ee | 2010-01-14 17:19:02 +0100 | [diff] [blame] | 1102 | struct zfcp_fsf_ct_els *els, unsigned int timeout) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1103 | { |
| 1104 | struct zfcp_fsf_req *req; |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 1105 | struct zfcp_qdio *qdio = adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1106 | int ret = -EIO; |
| 1107 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1108 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1109 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1110 | goto out; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1111 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1112 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_ELS, |
Jan Glauber | 3ec90878 | 2011-06-06 14:14:40 +0200 | [diff] [blame^] | 1113 | SBAL_SFLAGS0_TYPE_WRITE_READ, NULL); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1114 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1115 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1116 | ret = PTR_ERR(req); |
| 1117 | goto out; |
| 1118 | } |
| 1119 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1120 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame] | 1121 | |
| 1122 | zfcp_qdio_sbal_limit(qdio, &req->qdio_req, 2); |
| 1123 | |
| 1124 | ret = zfcp_fsf_setup_ct_els(req, els->req, els->resp, timeout); |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 1125 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1126 | if (ret) |
| 1127 | goto failed_send; |
| 1128 | |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 1129 | hton24(req->qtcb->bottom.support.d_id, d_id); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1130 | req->handler = zfcp_fsf_send_els_handler; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1131 | req->data = els; |
| 1132 | |
Swen Schillig | 2c55b75 | 2010-12-02 15:16:13 +0100 | [diff] [blame] | 1133 | zfcp_dbf_san_req("fssels1", req, d_id); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1134 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1135 | ret = zfcp_fsf_req_send(req); |
| 1136 | if (ret) |
| 1137 | goto failed_send; |
| 1138 | |
| 1139 | goto out; |
| 1140 | |
| 1141 | failed_send: |
| 1142 | zfcp_fsf_req_free(req); |
| 1143 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1144 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1145 | return ret; |
| 1146 | } |
| 1147 | |
| 1148 | int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action) |
| 1149 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1150 | struct zfcp_fsf_req *req; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1151 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1152 | int retval = -EIO; |
| 1153 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1154 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1155 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1156 | goto out; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1157 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1158 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, |
Jan Glauber | 3ec90878 | 2011-06-06 14:14:40 +0200 | [diff] [blame^] | 1159 | SBAL_SFLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1160 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1161 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1162 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1163 | retval = PTR_ERR(req); |
| 1164 | goto out; |
| 1165 | } |
| 1166 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1167 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1168 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1169 | |
| 1170 | req->qtcb->bottom.config.feature_selection = |
| 1171 | FSF_FEATURE_CFDC | |
| 1172 | FSF_FEATURE_LUN_SHARING | |
| 1173 | FSF_FEATURE_NOTIFICATION_LOST | |
| 1174 | FSF_FEATURE_UPDATE_ALERT; |
| 1175 | req->erp_action = erp_action; |
| 1176 | req->handler = zfcp_fsf_exchange_config_data_handler; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1177 | erp_action->fsf_req_id = req->req_id; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1178 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1179 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1180 | retval = zfcp_fsf_req_send(req); |
| 1181 | if (retval) { |
| 1182 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1183 | erp_action->fsf_req_id = 0; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1184 | } |
| 1185 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1186 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1187 | return retval; |
| 1188 | } |
| 1189 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1190 | int zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *qdio, |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1191 | struct fsf_qtcb_bottom_config *data) |
| 1192 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1193 | struct zfcp_fsf_req *req = NULL; |
| 1194 | int retval = -EIO; |
| 1195 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1196 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1197 | if (zfcp_qdio_sbal_get(qdio)) |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1198 | goto out_unlock; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1199 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1200 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, |
Jan Glauber | 3ec90878 | 2011-06-06 14:14:40 +0200 | [diff] [blame^] | 1201 | SBAL_SFLAGS0_TYPE_READ, NULL); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1202 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1203 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1204 | retval = PTR_ERR(req); |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1205 | goto out_unlock; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1206 | } |
| 1207 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1208 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1209 | req->handler = zfcp_fsf_exchange_config_data_handler; |
| 1210 | |
| 1211 | req->qtcb->bottom.config.feature_selection = |
| 1212 | FSF_FEATURE_CFDC | |
| 1213 | FSF_FEATURE_LUN_SHARING | |
| 1214 | FSF_FEATURE_NOTIFICATION_LOST | |
| 1215 | FSF_FEATURE_UPDATE_ALERT; |
| 1216 | |
| 1217 | if (data) |
| 1218 | req->data = data; |
| 1219 | |
| 1220 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
| 1221 | retval = zfcp_fsf_req_send(req); |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1222 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1223 | if (!retval) |
Swen Schillig | 058b864 | 2009-08-18 15:43:14 +0200 | [diff] [blame] | 1224 | wait_for_completion(&req->completion); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1225 | |
| 1226 | zfcp_fsf_req_free(req); |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1227 | return retval; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1228 | |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1229 | out_unlock: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1230 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1231 | return retval; |
| 1232 | } |
| 1233 | |
| 1234 | /** |
| 1235 | * zfcp_fsf_exchange_port_data - request information about local port |
| 1236 | * @erp_action: ERP action for the adapter for which port data is requested |
| 1237 | * Returns: 0 on success, error otherwise |
| 1238 | */ |
| 1239 | int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action) |
| 1240 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1241 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1242 | struct zfcp_fsf_req *req; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1243 | int retval = -EIO; |
| 1244 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1245 | if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1246 | return -EOPNOTSUPP; |
| 1247 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1248 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1249 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1250 | goto out; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1251 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1252 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, |
Jan Glauber | 3ec90878 | 2011-06-06 14:14:40 +0200 | [diff] [blame^] | 1253 | SBAL_SFLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1254 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1255 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1256 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1257 | retval = PTR_ERR(req); |
| 1258 | goto out; |
| 1259 | } |
| 1260 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1261 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1262 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1263 | |
| 1264 | req->handler = zfcp_fsf_exchange_port_data_handler; |
| 1265 | req->erp_action = erp_action; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1266 | erp_action->fsf_req_id = req->req_id; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1267 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1268 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1269 | retval = zfcp_fsf_req_send(req); |
| 1270 | if (retval) { |
| 1271 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1272 | erp_action->fsf_req_id = 0; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1273 | } |
| 1274 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1275 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1276 | return retval; |
| 1277 | } |
| 1278 | |
| 1279 | /** |
| 1280 | * zfcp_fsf_exchange_port_data_sync - request information about local port |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1281 | * @qdio: pointer to struct zfcp_qdio |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1282 | * @data: pointer to struct fsf_qtcb_bottom_port |
| 1283 | * Returns: 0 on success, error otherwise |
| 1284 | */ |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1285 | int zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *qdio, |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1286 | struct fsf_qtcb_bottom_port *data) |
| 1287 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1288 | struct zfcp_fsf_req *req = NULL; |
| 1289 | int retval = -EIO; |
| 1290 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1291 | if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1292 | return -EOPNOTSUPP; |
| 1293 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1294 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1295 | if (zfcp_qdio_sbal_get(qdio)) |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1296 | goto out_unlock; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1297 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1298 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, |
Jan Glauber | 3ec90878 | 2011-06-06 14:14:40 +0200 | [diff] [blame^] | 1299 | SBAL_SFLAGS0_TYPE_READ, NULL); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1300 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1301 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1302 | retval = PTR_ERR(req); |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1303 | goto out_unlock; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1304 | } |
| 1305 | |
| 1306 | if (data) |
| 1307 | req->data = data; |
| 1308 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1309 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1310 | |
| 1311 | req->handler = zfcp_fsf_exchange_port_data_handler; |
| 1312 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
| 1313 | retval = zfcp_fsf_req_send(req); |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1314 | spin_unlock_irq(&qdio->req_q_lock); |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1315 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1316 | if (!retval) |
Swen Schillig | 058b864 | 2009-08-18 15:43:14 +0200 | [diff] [blame] | 1317 | wait_for_completion(&req->completion); |
| 1318 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1319 | zfcp_fsf_req_free(req); |
| 1320 | |
| 1321 | return retval; |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1322 | |
| 1323 | out_unlock: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1324 | spin_unlock_irq(&qdio->req_q_lock); |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1325 | return retval; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1326 | } |
| 1327 | |
| 1328 | static void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req) |
| 1329 | { |
| 1330 | struct zfcp_port *port = req->data; |
| 1331 | struct fsf_qtcb_header *header = &req->qtcb->header; |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 1332 | struct fc_els_flogi *plogi; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1333 | |
| 1334 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Martin Petermann | a17c585 | 2009-05-15 13:18:19 +0200 | [diff] [blame] | 1335 | goto out; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1336 | |
| 1337 | switch (header->fsf_status) { |
| 1338 | case FSF_PORT_ALREADY_OPEN: |
| 1339 | break; |
| 1340 | case FSF_ACCESS_DENIED: |
Christof Schmitt | a1ca483 | 2010-09-08 14:39:59 +0200 | [diff] [blame] | 1341 | zfcp_cfdc_port_denied(port, &header->fsf_status_qual); |
| 1342 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1343 | break; |
| 1344 | case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: |
| 1345 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 1346 | "Not enough FCP adapter resources to open " |
Swen Schillig | 7ba58c9 | 2008-10-01 12:42:18 +0200 | [diff] [blame] | 1347 | "remote port 0x%016Lx\n", |
| 1348 | (unsigned long long)port->wwpn); |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 1349 | zfcp_erp_set_port_status(port, |
| 1350 | ZFCP_STATUS_COMMON_ERP_FAILED); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1351 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1352 | break; |
| 1353 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 1354 | switch (header->fsf_status_qual.word[0]) { |
| 1355 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
| 1356 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1357 | case FSF_SQ_NO_RETRY_POSSIBLE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1358 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1359 | break; |
| 1360 | } |
| 1361 | break; |
| 1362 | case FSF_GOOD: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1363 | port->handle = header->port_handle; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1364 | atomic_set_mask(ZFCP_STATUS_COMMON_OPEN | |
| 1365 | ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); |
Andreas Herrmann | d736a27b | 2005-06-13 13:23:57 +0200 | [diff] [blame] | 1366 | atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | |
| 1367 | ZFCP_STATUS_COMMON_ACCESS_BOXED, |
| 1368 | &port->status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1369 | /* check whether D_ID has changed during open */ |
| 1370 | /* |
| 1371 | * FIXME: This check is not airtight, as the FCP channel does |
| 1372 | * not monitor closures of target port connections caused on |
| 1373 | * the remote side. Thus, they might miss out on invalidating |
| 1374 | * locally cached WWPNs (and other N_Port parameters) of gone |
| 1375 | * target ports. So, our heroic attempt to make things safe |
| 1376 | * could be undermined by 'open port' response data tagged with |
| 1377 | * obsolete WWPNs. Another reason to monitor potential |
| 1378 | * connection closures ourself at least (by interpreting |
| 1379 | * incoming ELS' and unsolicited status). It just crosses my |
| 1380 | * mind that one should be able to cross-check by means of |
| 1381 | * another GID_PN straight after a port has been opened. |
| 1382 | * Alternately, an ADISC/PDISC ELS should suffice, as well. |
| 1383 | */ |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 1384 | plogi = (struct fc_els_flogi *) req->qtcb->bottom.support.els; |
Christof Schmitt | 39eb7e9a | 2008-12-19 16:57:01 +0100 | [diff] [blame] | 1385 | if (req->qtcb->bottom.support.els1_length >= |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 1386 | FSF_PLOGI_MIN_LEN) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1387 | zfcp_fc_plogi_evaluate(port, plogi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1388 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1389 | case FSF_UNKNOWN_OP_SUBTYPE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1390 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1391 | break; |
| 1392 | } |
Martin Petermann | a17c585 | 2009-05-15 13:18:19 +0200 | [diff] [blame] | 1393 | |
| 1394 | out: |
Christof Schmitt | 615f59e | 2010-02-17 11:18:56 +0100 | [diff] [blame] | 1395 | put_device(&port->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1396 | } |
| 1397 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1398 | /** |
| 1399 | * zfcp_fsf_open_port - create and send open port request |
| 1400 | * @erp_action: pointer to struct zfcp_erp_action |
| 1401 | * Returns: 0 on success, error otherwise |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1402 | */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1403 | int zfcp_fsf_open_port(struct zfcp_erp_action *erp_action) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1404 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1405 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Martin Petermann | a17c585 | 2009-05-15 13:18:19 +0200 | [diff] [blame] | 1406 | struct zfcp_port *port = erp_action->port; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1407 | struct zfcp_fsf_req *req; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1408 | int retval = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1409 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1410 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1411 | if (zfcp_qdio_sbal_get(qdio)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1412 | goto out; |
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 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, |
Jan Glauber | 3ec90878 | 2011-06-06 14:14:40 +0200 | [diff] [blame^] | 1415 | SBAL_SFLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1416 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1417 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1418 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1419 | retval = PTR_ERR(req); |
| 1420 | goto out; |
| 1421 | } |
| 1422 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1423 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1424 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1425 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1426 | req->handler = zfcp_fsf_open_port_handler; |
Christof Schmitt | 800c0ca | 2009-11-24 16:54:12 +0100 | [diff] [blame] | 1427 | hton24(req->qtcb->bottom.support.d_id, port->d_id); |
Martin Petermann | a17c585 | 2009-05-15 13:18:19 +0200 | [diff] [blame] | 1428 | req->data = port; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1429 | req->erp_action = erp_action; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1430 | erp_action->fsf_req_id = req->req_id; |
Christof Schmitt | 615f59e | 2010-02-17 11:18:56 +0100 | [diff] [blame] | 1431 | get_device(&port->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1432 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1433 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1434 | retval = zfcp_fsf_req_send(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1435 | if (retval) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1436 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1437 | erp_action->fsf_req_id = 0; |
Christof Schmitt | 615f59e | 2010-02-17 11:18:56 +0100 | [diff] [blame] | 1438 | put_device(&port->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1439 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1440 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1441 | spin_unlock_irq(&qdio->req_q_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1442 | return retval; |
| 1443 | } |
| 1444 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1445 | static void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1446 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1447 | struct zfcp_port *port = req->data; |
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 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 1450 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1451 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1452 | switch (req->qtcb->header.fsf_status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1453 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 1454 | zfcp_erp_adapter_reopen(port->adapter, 0, "fscph_1"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1455 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1456 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1457 | case FSF_ADAPTER_STATUS_AVAILABLE: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1458 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1459 | case FSF_GOOD: |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 1460 | zfcp_erp_clear_port_status(port, ZFCP_STATUS_COMMON_OPEN); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1461 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1462 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1463 | } |
| 1464 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1465 | /** |
| 1466 | * zfcp_fsf_close_port - create and send close port request |
| 1467 | * @erp_action: pointer to struct zfcp_erp_action |
| 1468 | * Returns: 0 on success, error otherwise |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1469 | */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1470 | int zfcp_fsf_close_port(struct zfcp_erp_action *erp_action) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1471 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1472 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1473 | struct zfcp_fsf_req *req; |
| 1474 | int retval = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1475 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1476 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1477 | if (zfcp_qdio_sbal_get(qdio)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1478 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1479 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1480 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, |
Jan Glauber | 3ec90878 | 2011-06-06 14:14:40 +0200 | [diff] [blame^] | 1481 | SBAL_SFLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1482 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1483 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1484 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1485 | retval = PTR_ERR(req); |
| 1486 | goto out; |
| 1487 | } |
| 1488 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1489 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1490 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1491 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1492 | req->handler = zfcp_fsf_close_port_handler; |
| 1493 | req->data = erp_action->port; |
| 1494 | req->erp_action = erp_action; |
| 1495 | req->qtcb->header.port_handle = erp_action->port->handle; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1496 | erp_action->fsf_req_id = req->req_id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1497 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1498 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1499 | retval = zfcp_fsf_req_send(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1500 | if (retval) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1501 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1502 | erp_action->fsf_req_id = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1503 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1504 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1505 | spin_unlock_irq(&qdio->req_q_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1506 | return retval; |
| 1507 | } |
| 1508 | |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1509 | static void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req) |
| 1510 | { |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1511 | struct zfcp_fc_wka_port *wka_port = req->data; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1512 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 1513 | |
| 1514 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) { |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1515 | wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1516 | goto out; |
| 1517 | } |
| 1518 | |
| 1519 | switch (header->fsf_status) { |
| 1520 | case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: |
| 1521 | dev_warn(&req->adapter->ccw_device->dev, |
| 1522 | "Opening WKA port 0x%x failed\n", wka_port->d_id); |
Christof Schmitt | dceab65 | 2009-05-15 13:18:18 +0200 | [diff] [blame] | 1523 | /* fall through */ |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1524 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 1525 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Christof Schmitt | dceab65 | 2009-05-15 13:18:18 +0200 | [diff] [blame] | 1526 | /* fall through */ |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1527 | case FSF_ACCESS_DENIED: |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1528 | wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1529 | break; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1530 | case FSF_GOOD: |
| 1531 | wka_port->handle = header->port_handle; |
Swen Schillig | 27f492c | 2009-07-13 15:06:13 +0200 | [diff] [blame] | 1532 | /* fall through */ |
| 1533 | case FSF_PORT_ALREADY_OPEN: |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1534 | wka_port->status = ZFCP_FC_WKA_PORT_ONLINE; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1535 | } |
| 1536 | out: |
| 1537 | wake_up(&wka_port->completion_wq); |
| 1538 | } |
| 1539 | |
| 1540 | /** |
| 1541 | * zfcp_fsf_open_wka_port - create and send open wka-port request |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1542 | * @wka_port: pointer to struct zfcp_fc_wka_port |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1543 | * Returns: 0 on success, error otherwise |
| 1544 | */ |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1545 | 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] | 1546 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1547 | struct zfcp_qdio *qdio = wka_port->adapter->qdio; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1548 | struct zfcp_fsf_req *req; |
| 1549 | int retval = -EIO; |
| 1550 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1551 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1552 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1553 | goto out; |
| 1554 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1555 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, |
Jan Glauber | 3ec90878 | 2011-06-06 14:14:40 +0200 | [diff] [blame^] | 1556 | SBAL_SFLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1557 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1558 | |
Tobias Klauser | 4e7d7af | 2011-02-22 19:54:38 +0100 | [diff] [blame] | 1559 | if (IS_ERR(req)) { |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1560 | retval = PTR_ERR(req); |
| 1561 | goto out; |
| 1562 | } |
| 1563 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1564 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1565 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1566 | |
| 1567 | req->handler = zfcp_fsf_open_wka_port_handler; |
Christof Schmitt | 800c0ca | 2009-11-24 16:54:12 +0100 | [diff] [blame] | 1568 | hton24(req->qtcb->bottom.support.d_id, wka_port->d_id); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1569 | req->data = wka_port; |
| 1570 | |
| 1571 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
| 1572 | retval = zfcp_fsf_req_send(req); |
| 1573 | if (retval) |
| 1574 | zfcp_fsf_req_free(req); |
| 1575 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1576 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1577 | return retval; |
| 1578 | } |
| 1579 | |
| 1580 | static void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req) |
| 1581 | { |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1582 | struct zfcp_fc_wka_port *wka_port = req->data; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1583 | |
| 1584 | if (req->qtcb->header.fsf_status == FSF_PORT_HANDLE_NOT_VALID) { |
| 1585 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 1586 | zfcp_erp_adapter_reopen(wka_port->adapter, 0, "fscwph1"); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1587 | } |
| 1588 | |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1589 | wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1590 | wake_up(&wka_port->completion_wq); |
| 1591 | } |
| 1592 | |
| 1593 | /** |
| 1594 | * zfcp_fsf_close_wka_port - create and send close wka port request |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1595 | * @wka_port: WKA port to open |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1596 | * Returns: 0 on success, error otherwise |
| 1597 | */ |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1598 | 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] | 1599 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1600 | struct zfcp_qdio *qdio = wka_port->adapter->qdio; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1601 | struct zfcp_fsf_req *req; |
| 1602 | int retval = -EIO; |
| 1603 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1604 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1605 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1606 | goto out; |
| 1607 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1608 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, |
Jan Glauber | 3ec90878 | 2011-06-06 14:14:40 +0200 | [diff] [blame^] | 1609 | SBAL_SFLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1610 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1611 | |
Tobias Klauser | 4e7d7af | 2011-02-22 19:54:38 +0100 | [diff] [blame] | 1612 | if (IS_ERR(req)) { |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1613 | retval = PTR_ERR(req); |
| 1614 | goto out; |
| 1615 | } |
| 1616 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1617 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1618 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1619 | |
| 1620 | req->handler = zfcp_fsf_close_wka_port_handler; |
| 1621 | req->data = wka_port; |
| 1622 | req->qtcb->header.port_handle = wka_port->handle; |
| 1623 | |
| 1624 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
| 1625 | retval = zfcp_fsf_req_send(req); |
| 1626 | if (retval) |
| 1627 | zfcp_fsf_req_free(req); |
| 1628 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1629 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1630 | return retval; |
| 1631 | } |
| 1632 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1633 | 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] | 1634 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1635 | struct zfcp_port *port = req->data; |
| 1636 | struct fsf_qtcb_header *header = &req->qtcb->header; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1637 | struct scsi_device *sdev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1638 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1639 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Christof Schmitt | a5b11dd | 2009-03-02 13:08:54 +0100 | [diff] [blame] | 1640 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1641 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1642 | switch (header->fsf_status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1643 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 1644 | zfcp_erp_adapter_reopen(port->adapter, 0, "fscpph1"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1645 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1646 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1647 | case FSF_ACCESS_DENIED: |
Christof Schmitt | a1ca483 | 2010-09-08 14:39:59 +0200 | [diff] [blame] | 1648 | zfcp_cfdc_port_denied(port, &header->fsf_status_qual); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1649 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1650 | case FSF_PORT_BOXED: |
Christof Schmitt | 5c815d1 | 2008-03-10 16:18:54 +0100 | [diff] [blame] | 1651 | /* can't use generic zfcp_erp_modify_port_status because |
| 1652 | * ZFCP_STATUS_COMMON_OPEN must not be reset for the port */ |
| 1653 | atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1654 | shost_for_each_device(sdev, port->adapter->scsi_host) |
| 1655 | if (sdev_to_zfcp(sdev)->port == port) |
| 1656 | atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, |
| 1657 | &sdev_to_zfcp(sdev)->status); |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 1658 | zfcp_erp_set_port_status(port, ZFCP_STATUS_COMMON_ACCESS_BOXED); |
| 1659 | zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 1660 | "fscpph2"); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 1661 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1662 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1663 | case FSF_ADAPTER_STATUS_AVAILABLE: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1664 | switch (header->fsf_status_qual.word[0]) { |
| 1665 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1666 | /* fall through */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1667 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1668 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1669 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1670 | } |
| 1671 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1672 | case FSF_GOOD: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1673 | /* can't use generic zfcp_erp_modify_port_status because |
| 1674 | * ZFCP_STATUS_COMMON_OPEN must not be reset for the port |
| 1675 | */ |
| 1676 | atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1677 | shost_for_each_device(sdev, port->adapter->scsi_host) |
| 1678 | if (sdev_to_zfcp(sdev)->port == port) |
| 1679 | atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, |
| 1680 | &sdev_to_zfcp(sdev)->status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1681 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1682 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1683 | } |
| 1684 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1685 | /** |
| 1686 | * zfcp_fsf_close_physical_port - close physical port |
| 1687 | * @erp_action: pointer to struct zfcp_erp_action |
| 1688 | * Returns: 0 on success |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1689 | */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1690 | int zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1691 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1692 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1693 | struct zfcp_fsf_req *req; |
| 1694 | int retval = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1695 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1696 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1697 | if (zfcp_qdio_sbal_get(qdio)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1698 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1699 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1700 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PHYSICAL_PORT, |
Jan Glauber | 3ec90878 | 2011-06-06 14:14:40 +0200 | [diff] [blame^] | 1701 | SBAL_SFLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1702 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1703 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1704 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1705 | retval = PTR_ERR(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1706 | goto out; |
| 1707 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1708 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1709 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1710 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1711 | |
| 1712 | req->data = erp_action->port; |
| 1713 | req->qtcb->header.port_handle = erp_action->port->handle; |
| 1714 | req->erp_action = erp_action; |
| 1715 | req->handler = zfcp_fsf_close_physical_port_handler; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1716 | erp_action->fsf_req_id = req->req_id; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1717 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1718 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1719 | retval = zfcp_fsf_req_send(req); |
| 1720 | if (retval) { |
| 1721 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1722 | erp_action->fsf_req_id = 0; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1723 | } |
| 1724 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1725 | spin_unlock_irq(&qdio->req_q_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1726 | return retval; |
| 1727 | } |
| 1728 | |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1729 | static void zfcp_fsf_open_lun_handler(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1730 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1731 | struct zfcp_adapter *adapter = req->adapter; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1732 | struct scsi_device *sdev = req->data; |
| 1733 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1734 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 1735 | struct fsf_qtcb_bottom_support *bottom = &req->qtcb->bottom.support; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1736 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1737 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 1738 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1739 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1740 | atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | |
Heiko Carstens | b64ddf9 | 2007-05-08 11:19:57 +0200 | [diff] [blame] | 1741 | ZFCP_STATUS_COMMON_ACCESS_BOXED | |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1742 | ZFCP_STATUS_LUN_SHARED | |
| 1743 | ZFCP_STATUS_LUN_READONLY, |
| 1744 | &zfcp_sdev->status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1745 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1746 | switch (header->fsf_status) { |
| 1747 | |
| 1748 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 1749 | zfcp_erp_adapter_reopen(adapter, 0, "fsouh_1"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1750 | /* fall through */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1751 | case FSF_LUN_ALREADY_OPEN: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1752 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1753 | case FSF_ACCESS_DENIED: |
Christof Schmitt | a1ca483 | 2010-09-08 14:39:59 +0200 | [diff] [blame] | 1754 | zfcp_cfdc_lun_denied(sdev, &header->fsf_status_qual); |
| 1755 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1756 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1757 | case FSF_PORT_BOXED: |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 1758 | zfcp_erp_set_port_status(zfcp_sdev->port, |
| 1759 | ZFCP_STATUS_COMMON_ACCESS_BOXED); |
| 1760 | zfcp_erp_port_reopen(zfcp_sdev->port, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 1761 | ZFCP_STATUS_COMMON_ERP_FAILED, "fsouh_2"); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 1762 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1763 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1764 | case FSF_LUN_SHARING_VIOLATION: |
Christof Schmitt | a1ca483 | 2010-09-08 14:39:59 +0200 | [diff] [blame] | 1765 | zfcp_cfdc_lun_shrng_vltn(sdev, &header->fsf_status_qual); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1766 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1767 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1768 | case FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1769 | dev_warn(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 1770 | "No handle is available for LUN " |
| 1771 | "0x%016Lx on port 0x%016Lx\n", |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1772 | (unsigned long long)zfcp_scsi_dev_lun(sdev), |
| 1773 | (unsigned long long)zfcp_sdev->port->wwpn); |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 1774 | zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_ERP_FAILED); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1775 | /* fall through */ |
| 1776 | case FSF_INVALID_COMMAND_OPTION: |
| 1777 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1778 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1779 | case FSF_ADAPTER_STATUS_AVAILABLE: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1780 | switch (header->fsf_status_qual.word[0]) { |
| 1781 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1782 | zfcp_fc_test_link(zfcp_sdev->port); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1783 | /* fall through */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1784 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1785 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1786 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1787 | } |
| 1788 | break; |
| 1789 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1790 | case FSF_GOOD: |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1791 | zfcp_sdev->lun_handle = header->lun_handle; |
| 1792 | atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &zfcp_sdev->status); |
Christof Schmitt | a1ca483 | 2010-09-08 14:39:59 +0200 | [diff] [blame] | 1793 | zfcp_cfdc_open_lun_eval(sdev, bottom); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1794 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1795 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1796 | } |
| 1797 | |
| 1798 | /** |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1799 | * zfcp_fsf_open_lun - open LUN |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1800 | * @erp_action: pointer to struct zfcp_erp_action |
| 1801 | * Returns: 0 on success, error otherwise |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1802 | */ |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1803 | int zfcp_fsf_open_lun(struct zfcp_erp_action *erp_action) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1804 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1805 | struct zfcp_adapter *adapter = erp_action->adapter; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1806 | struct zfcp_qdio *qdio = adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1807 | struct zfcp_fsf_req *req; |
| 1808 | int retval = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1809 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1810 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1811 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1812 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1813 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1814 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_LUN, |
Jan Glauber | 3ec90878 | 2011-06-06 14:14:40 +0200 | [diff] [blame^] | 1815 | SBAL_SFLAGS0_TYPE_READ, |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 1816 | adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1817 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1818 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1819 | retval = PTR_ERR(req); |
| 1820 | goto out; |
Christof Schmitt | ba17242 | 2007-12-20 12:30:26 +0100 | [diff] [blame] | 1821 | } |
| 1822 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1823 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1824 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1825 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1826 | req->qtcb->header.port_handle = erp_action->port->handle; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1827 | req->qtcb->bottom.support.fcp_lun = zfcp_scsi_dev_lun(erp_action->sdev); |
| 1828 | req->handler = zfcp_fsf_open_lun_handler; |
| 1829 | req->data = erp_action->sdev; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1830 | req->erp_action = erp_action; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1831 | erp_action->fsf_req_id = req->req_id; |
Andreas Herrmann | 059c97d | 2005-09-13 21:47:52 +0200 | [diff] [blame] | 1832 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1833 | if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE)) |
| 1834 | req->qtcb->bottom.support.option = FSF_OPEN_LUN_SUPPRESS_BOXING; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1835 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1836 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1837 | retval = zfcp_fsf_req_send(req); |
| 1838 | if (retval) { |
| 1839 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1840 | erp_action->fsf_req_id = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1841 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1842 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1843 | spin_unlock_irq(&qdio->req_q_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1844 | return retval; |
| 1845 | } |
| 1846 | |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1847 | static void zfcp_fsf_close_lun_handler(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1848 | { |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1849 | struct scsi_device *sdev = req->data; |
| 1850 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1851 | |
| 1852 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 1853 | return; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1854 | |
| 1855 | switch (req->qtcb->header.fsf_status) { |
| 1856 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 1857 | zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, "fscuh_1"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1858 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1859 | break; |
| 1860 | case FSF_LUN_HANDLE_NOT_VALID: |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 1861 | zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fscuh_2"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1862 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1863 | break; |
| 1864 | case FSF_PORT_BOXED: |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 1865 | zfcp_erp_set_port_status(zfcp_sdev->port, |
| 1866 | ZFCP_STATUS_COMMON_ACCESS_BOXED); |
| 1867 | zfcp_erp_port_reopen(zfcp_sdev->port, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 1868 | ZFCP_STATUS_COMMON_ERP_FAILED, "fscuh_3"); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 1869 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1870 | break; |
| 1871 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 1872 | switch (req->qtcb->header.fsf_status_qual.word[0]) { |
| 1873 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1874 | zfcp_fc_test_link(zfcp_sdev->port); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1875 | /* fall through */ |
| 1876 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
| 1877 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1878 | break; |
| 1879 | } |
| 1880 | break; |
| 1881 | case FSF_GOOD: |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1882 | atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, &zfcp_sdev->status); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1883 | break; |
| 1884 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1885 | } |
| 1886 | |
| 1887 | /** |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1888 | * zfcp_fsf_close_LUN - close LUN |
| 1889 | * @erp_action: pointer to erp_action triggering the "close LUN" |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1890 | * Returns: 0 on success, error otherwise |
| 1891 | */ |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1892 | int zfcp_fsf_close_lun(struct zfcp_erp_action *erp_action) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1893 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1894 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1895 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(erp_action->sdev); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1896 | struct zfcp_fsf_req *req; |
| 1897 | int retval = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1898 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1899 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1900 | if (zfcp_qdio_sbal_get(qdio)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1901 | goto out; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1902 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1903 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_LUN, |
Jan Glauber | 3ec90878 | 2011-06-06 14:14:40 +0200 | [diff] [blame^] | 1904 | SBAL_SFLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1905 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1906 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1907 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1908 | retval = PTR_ERR(req); |
| 1909 | goto out; |
| 1910 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1911 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1912 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1913 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1914 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1915 | req->qtcb->header.port_handle = erp_action->port->handle; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1916 | req->qtcb->header.lun_handle = zfcp_sdev->lun_handle; |
| 1917 | req->handler = zfcp_fsf_close_lun_handler; |
| 1918 | req->data = erp_action->sdev; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1919 | req->erp_action = erp_action; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1920 | erp_action->fsf_req_id = req->req_id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1921 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1922 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1923 | retval = zfcp_fsf_req_send(req); |
| 1924 | if (retval) { |
| 1925 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1926 | erp_action->fsf_req_id = 0; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1927 | } |
| 1928 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1929 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1930 | return retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1931 | } |
| 1932 | |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 1933 | static void zfcp_fsf_update_lat(struct fsf_latency_record *lat_rec, u32 lat) |
| 1934 | { |
| 1935 | lat_rec->sum += lat; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1936 | lat_rec->min = min(lat_rec->min, lat); |
| 1937 | lat_rec->max = max(lat_rec->max, lat); |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 1938 | } |
| 1939 | |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1940 | 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] | 1941 | { |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1942 | struct fsf_qual_latency_info *lat_in; |
| 1943 | struct latency_cont *lat = NULL; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1944 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(scsi->device); |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1945 | struct zfcp_blk_drv_data blktrc; |
| 1946 | int ticks = req->adapter->timer_ticks; |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 1947 | |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1948 | lat_in = &req->qtcb->prefix.prot_status_qual.latency_info; |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 1949 | |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1950 | blktrc.flags = 0; |
| 1951 | blktrc.magic = ZFCP_BLK_DRV_DATA_MAGIC; |
| 1952 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
| 1953 | blktrc.flags |= ZFCP_BLK_REQ_ERROR; |
Swen Schillig | 706eca4 | 2010-07-16 15:37:38 +0200 | [diff] [blame] | 1954 | blktrc.inb_usage = 0; |
Christof Schmitt | 34c2b71 | 2010-02-17 11:18:59 +0100 | [diff] [blame] | 1955 | blktrc.outb_usage = req->qdio_req.qdio_outb_usage; |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1956 | |
Christof Schmitt | 5bbf297 | 2010-04-01 13:04:08 +0200 | [diff] [blame] | 1957 | if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA && |
| 1958 | !(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1959 | blktrc.flags |= ZFCP_BLK_LAT_VALID; |
| 1960 | blktrc.channel_lat = lat_in->channel_lat * ticks; |
| 1961 | blktrc.fabric_lat = lat_in->fabric_lat * ticks; |
| 1962 | |
| 1963 | switch (req->qtcb->bottom.io.data_direction) { |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 1964 | case FSF_DATADIR_DIF_READ_STRIP: |
| 1965 | case FSF_DATADIR_DIF_READ_CONVERT: |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1966 | case FSF_DATADIR_READ: |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1967 | lat = &zfcp_sdev->latencies.read; |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1968 | break; |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 1969 | case FSF_DATADIR_DIF_WRITE_INSERT: |
| 1970 | case FSF_DATADIR_DIF_WRITE_CONVERT: |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1971 | case FSF_DATADIR_WRITE: |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1972 | lat = &zfcp_sdev->latencies.write; |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1973 | break; |
| 1974 | case FSF_DATADIR_CMND: |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1975 | lat = &zfcp_sdev->latencies.cmd; |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1976 | break; |
| 1977 | } |
| 1978 | |
| 1979 | if (lat) { |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1980 | spin_lock(&zfcp_sdev->latencies.lock); |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1981 | zfcp_fsf_update_lat(&lat->channel, lat_in->channel_lat); |
| 1982 | zfcp_fsf_update_lat(&lat->fabric, lat_in->fabric_lat); |
| 1983 | lat->counter++; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1984 | spin_unlock(&zfcp_sdev->latencies.lock); |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1985 | } |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 1986 | } |
| 1987 | |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1988 | blk_add_driver_data(scsi->request->q, scsi->request, &blktrc, |
| 1989 | sizeof(blktrc)); |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 1990 | } |
| 1991 | |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 1992 | static void zfcp_fsf_fcp_handler_common(struct zfcp_fsf_req *req) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1993 | { |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1994 | struct scsi_cmnd *scmnd = req->data; |
| 1995 | struct scsi_device *sdev = scmnd->device; |
| 1996 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1997 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 1998 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1999 | if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 2000 | return; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2001 | |
| 2002 | switch (header->fsf_status) { |
| 2003 | case FSF_HANDLE_MISMATCH: |
| 2004 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 2005 | zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, "fssfch1"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2006 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2007 | break; |
| 2008 | case FSF_FCPLUN_NOT_VALID: |
| 2009 | case FSF_LUN_HANDLE_NOT_VALID: |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 2010 | zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fssfch2"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2011 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2012 | break; |
| 2013 | case FSF_SERVICE_CLASS_NOT_SUPPORTED: |
| 2014 | zfcp_fsf_class_not_supp(req); |
| 2015 | break; |
| 2016 | case FSF_ACCESS_DENIED: |
Christof Schmitt | a1ca483 | 2010-09-08 14:39:59 +0200 | [diff] [blame] | 2017 | zfcp_cfdc_lun_denied(sdev, &header->fsf_status_qual); |
| 2018 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2019 | break; |
| 2020 | case FSF_DIRECTION_INDICATOR_NOT_VALID: |
| 2021 | dev_err(&req->adapter->ccw_device->dev, |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2022 | "Incorrect direction %d, LUN 0x%016Lx on port " |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 2023 | "0x%016Lx closed\n", |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2024 | req->qtcb->bottom.io.data_direction, |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2025 | (unsigned long long)zfcp_scsi_dev_lun(sdev), |
| 2026 | (unsigned long long)zfcp_sdev->port->wwpn); |
| 2027 | zfcp_erp_adapter_shutdown(zfcp_sdev->port->adapter, 0, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 2028 | "fssfch3"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2029 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2030 | break; |
| 2031 | case FSF_CMND_LENGTH_NOT_VALID: |
| 2032 | dev_err(&req->adapter->ccw_device->dev, |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2033 | "Incorrect CDB length %d, LUN 0x%016Lx on " |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 2034 | "port 0x%016Lx closed\n", |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2035 | req->qtcb->bottom.io.fcp_cmnd_length, |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2036 | (unsigned long long)zfcp_scsi_dev_lun(sdev), |
| 2037 | (unsigned long long)zfcp_sdev->port->wwpn); |
| 2038 | zfcp_erp_adapter_shutdown(zfcp_sdev->port->adapter, 0, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 2039 | "fssfch4"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2040 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2041 | break; |
| 2042 | case FSF_PORT_BOXED: |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 2043 | zfcp_erp_set_port_status(zfcp_sdev->port, |
| 2044 | ZFCP_STATUS_COMMON_ACCESS_BOXED); |
| 2045 | zfcp_erp_port_reopen(zfcp_sdev->port, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 2046 | ZFCP_STATUS_COMMON_ERP_FAILED, "fssfch5"); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 2047 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2048 | break; |
| 2049 | case FSF_LUN_BOXED: |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 2050 | zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_ACCESS_BOXED); |
| 2051 | zfcp_erp_lun_reopen(sdev, ZFCP_STATUS_COMMON_ERP_FAILED, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 2052 | "fssfch6"); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 2053 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2054 | break; |
| 2055 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 2056 | if (header->fsf_status_qual.word[0] == |
| 2057 | FSF_SQ_INVOKE_LINK_TEST_PROCEDURE) |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2058 | zfcp_fc_test_link(zfcp_sdev->port); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2059 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2060 | break; |
| 2061 | } |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 2062 | } |
| 2063 | |
| 2064 | static void zfcp_fsf_fcp_cmnd_handler(struct zfcp_fsf_req *req) |
| 2065 | { |
| 2066 | struct scsi_cmnd *scpnt; |
| 2067 | struct fcp_resp_with_ext *fcp_rsp; |
| 2068 | unsigned long flags; |
| 2069 | |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 2070 | read_lock_irqsave(&req->adapter->abort_lock, flags); |
| 2071 | |
| 2072 | scpnt = req->data; |
| 2073 | if (unlikely(!scpnt)) { |
| 2074 | read_unlock_irqrestore(&req->adapter->abort_lock, flags); |
| 2075 | return; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2076 | } |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 2077 | |
Swen Schillig | 5bfb2c3 | 2010-11-17 14:23:40 +0100 | [diff] [blame] | 2078 | zfcp_fsf_fcp_handler_common(req); |
| 2079 | |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 2080 | if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { |
| 2081 | set_host_byte(scpnt, DID_TRANSPORT_DISRUPTED); |
| 2082 | goto skip_fsfstatus; |
| 2083 | } |
| 2084 | |
| 2085 | switch (req->qtcb->header.fsf_status) { |
| 2086 | case FSF_INCONSISTENT_PROT_DATA: |
| 2087 | case FSF_INVALID_PROT_PARM: |
| 2088 | set_host_byte(scpnt, DID_ERROR); |
| 2089 | goto skip_fsfstatus; |
| 2090 | case FSF_BLOCK_GUARD_CHECK_FAILURE: |
| 2091 | zfcp_scsi_dif_sense_error(scpnt, 0x1); |
| 2092 | goto skip_fsfstatus; |
| 2093 | case FSF_APP_TAG_CHECK_FAILURE: |
| 2094 | zfcp_scsi_dif_sense_error(scpnt, 0x2); |
| 2095 | goto skip_fsfstatus; |
| 2096 | case FSF_REF_TAG_CHECK_FAILURE: |
| 2097 | zfcp_scsi_dif_sense_error(scpnt, 0x3); |
| 2098 | goto skip_fsfstatus; |
| 2099 | } |
| 2100 | fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; |
| 2101 | zfcp_fc_eval_fcp_rsp(fcp_rsp, scpnt); |
| 2102 | |
| 2103 | skip_fsfstatus: |
| 2104 | zfcp_fsf_req_trace(req, scpnt); |
Swen Schillig | 250a135 | 2010-12-02 15:16:15 +0100 | [diff] [blame] | 2105 | zfcp_dbf_scsi_result(scpnt, req); |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 2106 | |
| 2107 | scpnt->host_scribble = NULL; |
| 2108 | (scpnt->scsi_done) (scpnt); |
| 2109 | /* |
| 2110 | * We must hold this lock until scsi_done has been called. |
| 2111 | * Otherwise we may call scsi_done after abort regarding this |
| 2112 | * command has completed. |
| 2113 | * Note: scsi_done must not block! |
| 2114 | */ |
| 2115 | read_unlock_irqrestore(&req->adapter->abort_lock, flags); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2116 | } |
| 2117 | |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2118 | static int zfcp_fsf_set_data_dir(struct scsi_cmnd *scsi_cmnd, u32 *data_dir) |
| 2119 | { |
| 2120 | switch (scsi_get_prot_op(scsi_cmnd)) { |
| 2121 | case SCSI_PROT_NORMAL: |
| 2122 | switch (scsi_cmnd->sc_data_direction) { |
| 2123 | case DMA_NONE: |
| 2124 | *data_dir = FSF_DATADIR_CMND; |
| 2125 | break; |
| 2126 | case DMA_FROM_DEVICE: |
| 2127 | *data_dir = FSF_DATADIR_READ; |
| 2128 | break; |
| 2129 | case DMA_TO_DEVICE: |
| 2130 | *data_dir = FSF_DATADIR_WRITE; |
| 2131 | break; |
| 2132 | case DMA_BIDIRECTIONAL: |
| 2133 | return -EINVAL; |
| 2134 | } |
| 2135 | break; |
| 2136 | |
| 2137 | case SCSI_PROT_READ_STRIP: |
| 2138 | *data_dir = FSF_DATADIR_DIF_READ_STRIP; |
| 2139 | break; |
| 2140 | case SCSI_PROT_WRITE_INSERT: |
| 2141 | *data_dir = FSF_DATADIR_DIF_WRITE_INSERT; |
| 2142 | break; |
| 2143 | case SCSI_PROT_READ_PASS: |
| 2144 | *data_dir = FSF_DATADIR_DIF_READ_CONVERT; |
| 2145 | break; |
| 2146 | case SCSI_PROT_WRITE_PASS: |
| 2147 | *data_dir = FSF_DATADIR_DIF_WRITE_CONVERT; |
| 2148 | break; |
| 2149 | default: |
| 2150 | return -EINVAL; |
| 2151 | } |
| 2152 | |
| 2153 | return 0; |
| 2154 | } |
| 2155 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2156 | /** |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2157 | * zfcp_fsf_fcp_cmnd - initiate an FCP command (for a SCSI command) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2158 | * @scsi_cmnd: scsi command to be sent |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2159 | */ |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2160 | int zfcp_fsf_fcp_cmnd(struct scsi_cmnd *scsi_cmnd) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2161 | { |
| 2162 | struct zfcp_fsf_req *req; |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2163 | struct fcp_cmnd *fcp_cmnd; |
Jan Glauber | 3ec90878 | 2011-06-06 14:14:40 +0200 | [diff] [blame^] | 2164 | u8 sbtype = SBAL_SFLAGS0_TYPE_READ; |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2165 | int real_bytes, retval = -EIO, dix_bytes = 0; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2166 | struct scsi_device *sdev = scsi_cmnd->device; |
| 2167 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); |
| 2168 | struct zfcp_adapter *adapter = zfcp_sdev->port->adapter; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2169 | struct zfcp_qdio *qdio = adapter->qdio; |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2170 | struct fsf_qtcb_bottom_io *io; |
Christof Schmitt | e55f875 | 2010-11-18 14:53:18 +0100 | [diff] [blame] | 2171 | unsigned long flags; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2172 | |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2173 | if (unlikely(!(atomic_read(&zfcp_sdev->status) & |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2174 | ZFCP_STATUS_COMMON_UNBLOCKED))) |
| 2175 | return -EBUSY; |
| 2176 | |
Christof Schmitt | e55f875 | 2010-11-18 14:53:18 +0100 | [diff] [blame] | 2177 | spin_lock_irqsave(&qdio->req_q_lock, flags); |
Swen Schillig | 706eca4 | 2010-07-16 15:37:38 +0200 | [diff] [blame] | 2178 | if (atomic_read(&qdio->req_q_free) <= 0) { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2179 | atomic_inc(&qdio->req_q_full); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2180 | goto out; |
Christof Schmitt | 8fdf30d | 2009-03-02 13:09:01 +0100 | [diff] [blame] | 2181 | } |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2182 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 2183 | if (scsi_cmnd->sc_data_direction == DMA_TO_DEVICE) |
Jan Glauber | 3ec90878 | 2011-06-06 14:14:40 +0200 | [diff] [blame^] | 2184 | sbtype = SBAL_SFLAGS0_TYPE_WRITE; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 2185 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2186 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 2187 | sbtype, adapter->pool.scsi_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2188 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 2189 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2190 | retval = PTR_ERR(req); |
| 2191 | goto out; |
| 2192 | } |
| 2193 | |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2194 | scsi_cmnd->host_scribble = (unsigned char *) req->req_id; |
| 2195 | |
| 2196 | io = &req->qtcb->bottom.io; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2197 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2198 | req->data = scsi_cmnd; |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 2199 | req->handler = zfcp_fsf_fcp_cmnd_handler; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2200 | req->qtcb->header.lun_handle = zfcp_sdev->lun_handle; |
| 2201 | req->qtcb->header.port_handle = zfcp_sdev->port->handle; |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2202 | io->service_class = FSF_CLASS_3; |
| 2203 | io->fcp_cmnd_length = FCP_CMND_LEN; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2204 | |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2205 | if (scsi_get_prot_op(scsi_cmnd) != SCSI_PROT_NORMAL) { |
| 2206 | io->data_block_length = scsi_cmnd->device->sector_size; |
| 2207 | io->ref_tag_value = scsi_get_lba(scsi_cmnd) & 0xFFFFFFFF; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2208 | } |
| 2209 | |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2210 | zfcp_fsf_set_data_dir(scsi_cmnd, &io->data_direction); |
| 2211 | |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2212 | fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; |
Christof Schmitt | 2443c8b | 2011-02-22 19:54:45 +0100 | [diff] [blame] | 2213 | zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd, 0); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2214 | |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2215 | if (scsi_prot_sg_count(scsi_cmnd)) { |
| 2216 | zfcp_qdio_set_data_div(qdio, &req->qdio_req, |
| 2217 | scsi_prot_sg_count(scsi_cmnd)); |
| 2218 | dix_bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, |
| 2219 | scsi_prot_sglist(scsi_cmnd)); |
| 2220 | io->prot_data_length = dix_bytes; |
| 2221 | } |
| 2222 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 2223 | real_bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame] | 2224 | scsi_sglist(scsi_cmnd)); |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2225 | |
| 2226 | if (unlikely(real_bytes < 0) || unlikely(dix_bytes < 0)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2227 | goto failed_scsi_cmnd; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2228 | |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2229 | zfcp_qdio_set_sbale_last(adapter->qdio, &req->qdio_req); |
| 2230 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2231 | retval = zfcp_fsf_req_send(req); |
| 2232 | if (unlikely(retval)) |
| 2233 | goto failed_scsi_cmnd; |
| 2234 | |
| 2235 | goto out; |
| 2236 | |
| 2237 | failed_scsi_cmnd: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2238 | zfcp_fsf_req_free(req); |
| 2239 | scsi_cmnd->host_scribble = NULL; |
| 2240 | out: |
Christof Schmitt | e55f875 | 2010-11-18 14:53:18 +0100 | [diff] [blame] | 2241 | spin_unlock_irqrestore(&qdio->req_q_lock, flags); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2242 | return retval; |
| 2243 | } |
| 2244 | |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 2245 | static void zfcp_fsf_fcp_task_mgmt_handler(struct zfcp_fsf_req *req) |
| 2246 | { |
| 2247 | struct fcp_resp_with_ext *fcp_rsp; |
| 2248 | struct fcp_resp_rsp_info *rsp_info; |
| 2249 | |
| 2250 | zfcp_fsf_fcp_handler_common(req); |
| 2251 | |
| 2252 | fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; |
| 2253 | rsp_info = (struct fcp_resp_rsp_info *) &fcp_rsp[1]; |
| 2254 | |
| 2255 | if ((rsp_info->rsp_code != FCP_TMF_CMPL) || |
| 2256 | (req->status & ZFCP_STATUS_FSFREQ_ERROR)) |
| 2257 | req->status |= ZFCP_STATUS_FSFREQ_TMFUNCFAILED; |
| 2258 | } |
| 2259 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2260 | /** |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2261 | * zfcp_fsf_fcp_task_mgmt - send SCSI task management command |
| 2262 | * @scmnd: SCSI command to send the task management command for |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2263 | * @tm_flags: unsigned byte for task management flags |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2264 | * Returns: on success pointer to struct fsf_req, NULL otherwise |
| 2265 | */ |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2266 | struct zfcp_fsf_req *zfcp_fsf_fcp_task_mgmt(struct scsi_cmnd *scmnd, |
| 2267 | u8 tm_flags) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2268 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2269 | struct zfcp_fsf_req *req = NULL; |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2270 | struct fcp_cmnd *fcp_cmnd; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2271 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(scmnd->device); |
| 2272 | struct zfcp_qdio *qdio = zfcp_sdev->port->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2273 | |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2274 | if (unlikely(!(atomic_read(&zfcp_sdev->status) & |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2275 | ZFCP_STATUS_COMMON_UNBLOCKED))) |
| 2276 | return NULL; |
| 2277 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 2278 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 2279 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2280 | goto out; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2281 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2282 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, |
Jan Glauber | 3ec90878 | 2011-06-06 14:14:40 +0200 | [diff] [blame^] | 2283 | SBAL_SFLAGS0_TYPE_WRITE, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2284 | qdio->adapter->pool.scsi_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2285 | |
Swen Schillig | 633528c | 2008-11-26 18:07:37 +0100 | [diff] [blame] | 2286 | if (IS_ERR(req)) { |
| 2287 | req = NULL; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2288 | goto out; |
Swen Schillig | 633528c | 2008-11-26 18:07:37 +0100 | [diff] [blame] | 2289 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2290 | |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2291 | req->data = scmnd; |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 2292 | req->handler = zfcp_fsf_fcp_task_mgmt_handler; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2293 | req->qtcb->header.lun_handle = zfcp_sdev->lun_handle; |
| 2294 | req->qtcb->header.port_handle = zfcp_sdev->port->handle; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2295 | req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; |
| 2296 | req->qtcb->bottom.io.service_class = FSF_CLASS_3; |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2297 | req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2298 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 2299 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2300 | |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2301 | fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; |
Christof Schmitt | 2443c8b | 2011-02-22 19:54:45 +0100 | [diff] [blame] | 2302 | zfcp_fc_scsi_to_fcp(fcp_cmnd, scmnd, tm_flags); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2303 | |
| 2304 | zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); |
| 2305 | if (!zfcp_fsf_req_send(req)) |
| 2306 | goto out; |
| 2307 | |
| 2308 | zfcp_fsf_req_free(req); |
| 2309 | req = NULL; |
| 2310 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 2311 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2312 | return req; |
| 2313 | } |
| 2314 | |
| 2315 | static void zfcp_fsf_control_file_handler(struct zfcp_fsf_req *req) |
| 2316 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2317 | } |
| 2318 | |
| 2319 | /** |
| 2320 | * zfcp_fsf_control_file - control file upload/download |
| 2321 | * @adapter: pointer to struct zfcp_adapter |
| 2322 | * @fsf_cfdc: pointer to struct zfcp_fsf_cfdc |
| 2323 | * Returns: on success pointer to struct zfcp_fsf_req, NULL otherwise |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2324 | */ |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2325 | struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter, |
| 2326 | struct zfcp_fsf_cfdc *fsf_cfdc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2327 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2328 | struct zfcp_qdio *qdio = adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2329 | struct zfcp_fsf_req *req = NULL; |
| 2330 | struct fsf_qtcb_bottom_support *bottom; |
Jan Glauber | 3ec90878 | 2011-06-06 14:14:40 +0200 | [diff] [blame^] | 2331 | int retval = -EIO, bytes; |
| 2332 | u8 direction; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2333 | |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2334 | if (!(adapter->adapter_features & FSF_FEATURE_CFDC)) |
| 2335 | return ERR_PTR(-EOPNOTSUPP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2336 | |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2337 | switch (fsf_cfdc->command) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2338 | case FSF_QTCB_DOWNLOAD_CONTROL_FILE: |
Jan Glauber | 3ec90878 | 2011-06-06 14:14:40 +0200 | [diff] [blame^] | 2339 | direction = SBAL_SFLAGS0_TYPE_WRITE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2340 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2341 | case FSF_QTCB_UPLOAD_CONTROL_FILE: |
Jan Glauber | 3ec90878 | 2011-06-06 14:14:40 +0200 | [diff] [blame^] | 2342 | direction = SBAL_SFLAGS0_TYPE_READ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2343 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2344 | default: |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2345 | return ERR_PTR(-EINVAL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2346 | } |
| 2347 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 2348 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 2349 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2350 | goto out; |
| 2351 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 2352 | req = zfcp_fsf_req_create(qdio, fsf_cfdc->command, direction, NULL); |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 2353 | if (IS_ERR(req)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2354 | retval = -EPERM; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2355 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2356 | } |
| 2357 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2358 | req->handler = zfcp_fsf_control_file_handler; |
| 2359 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2360 | bottom = &req->qtcb->bottom.support; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2361 | bottom->operation_subtype = FSF_CFDC_OPERATION_SUBTYPE; |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2362 | bottom->option = fsf_cfdc->option; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2363 | |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame] | 2364 | bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, fsf_cfdc->sg); |
| 2365 | |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2366 | if (bytes != ZFCP_CFDC_MAX_SIZE) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2367 | zfcp_fsf_req_free(req); |
| 2368 | goto out; |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2369 | } |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2370 | zfcp_qdio_set_sbale_last(adapter->qdio, &req->qdio_req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2371 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2372 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
| 2373 | retval = zfcp_fsf_req_send(req); |
| 2374 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 2375 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2376 | |
| 2377 | if (!retval) { |
Swen Schillig | 058b864 | 2009-08-18 15:43:14 +0200 | [diff] [blame] | 2378 | wait_for_completion(&req->completion); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2379 | return req; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2380 | } |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2381 | return ERR_PTR(retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2382 | } |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2383 | |
| 2384 | /** |
| 2385 | * zfcp_fsf_reqid_check - validate req_id contained in SBAL returned by QDIO |
| 2386 | * @adapter: pointer to struct zfcp_adapter |
| 2387 | * @sbal_idx: response queue index of SBAL to be processed |
| 2388 | */ |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2389 | void zfcp_fsf_reqid_check(struct zfcp_qdio *qdio, int sbal_idx) |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2390 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2391 | struct zfcp_adapter *adapter = qdio->adapter; |
Swen Schillig | 706eca4 | 2010-07-16 15:37:38 +0200 | [diff] [blame] | 2392 | struct qdio_buffer *sbal = qdio->res_q[sbal_idx]; |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2393 | struct qdio_buffer_element *sbale; |
| 2394 | struct zfcp_fsf_req *fsf_req; |
Christof Schmitt | b6bd2fb | 2010-02-17 11:18:50 +0100 | [diff] [blame] | 2395 | unsigned long req_id; |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2396 | int idx; |
| 2397 | |
| 2398 | for (idx = 0; idx < QDIO_MAX_ELEMENTS_PER_BUFFER; idx++) { |
| 2399 | |
| 2400 | sbale = &sbal->element[idx]; |
| 2401 | req_id = (unsigned long) sbale->addr; |
Christof Schmitt | b6bd2fb | 2010-02-17 11:18:50 +0100 | [diff] [blame] | 2402 | fsf_req = zfcp_reqlist_find_rm(adapter->req_list, req_id); |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2403 | |
Christof Schmitt | 339f4f4 | 2010-07-16 15:37:43 +0200 | [diff] [blame] | 2404 | if (!fsf_req) { |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2405 | /* |
| 2406 | * Unknown request means that we have potentially memory |
| 2407 | * corruption and must stop the machine immediately. |
| 2408 | */ |
Christof Schmitt | 339f4f4 | 2010-07-16 15:37:43 +0200 | [diff] [blame] | 2409 | zfcp_qdio_siosl(adapter); |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2410 | panic("error: unknown req_id (%lx) on adapter %s.\n", |
| 2411 | req_id, dev_name(&adapter->ccw_device->dev)); |
Christof Schmitt | 339f4f4 | 2010-07-16 15:37:43 +0200 | [diff] [blame] | 2412 | } |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2413 | |
Christof Schmitt | 34c2b71 | 2010-02-17 11:18:59 +0100 | [diff] [blame] | 2414 | fsf_req->qdio_req.sbal_response = sbal_idx; |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2415 | zfcp_fsf_req_complete(fsf_req); |
| 2416 | |
Jan Glauber | 3ec90878 | 2011-06-06 14:14:40 +0200 | [diff] [blame^] | 2417 | if (likely(sbale->eflags & SBAL_EFLAGS_LAST_ENTRY)) |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2418 | break; |
| 2419 | } |
| 2420 | } |
Swen Schillig | a54ca0f | 2010-12-02 15:16:14 +0100 | [diff] [blame] | 2421 | |
| 2422 | struct zfcp_fsf_req *zfcp_fsf_get_req(struct zfcp_qdio *qdio, |
| 2423 | struct qdio_buffer *sbal) |
| 2424 | { |
| 2425 | struct qdio_buffer_element *sbale = &sbal->element[0]; |
| 2426 | u64 req_id = (unsigned long) sbale->addr; |
| 2427 | |
| 2428 | return zfcp_reqlist_find(qdio->adapter->req_list, req_id); |
| 2429 | } |