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 | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 21 | static void zfcp_fsf_request_timeout_handler(unsigned long data) |
| 22 | { |
| 23 | struct zfcp_adapter *adapter = (struct zfcp_adapter *) data; |
Christof Schmitt | 339f4f4 | 2010-07-16 15:37:43 +0200 | [diff] [blame] | 24 | zfcp_qdio_siosl(adapter); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 25 | zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 26 | "fsrth_1"); |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 27 | } |
| 28 | |
| 29 | static void zfcp_fsf_start_timer(struct zfcp_fsf_req *fsf_req, |
| 30 | unsigned long timeout) |
| 31 | { |
| 32 | fsf_req->timer.function = zfcp_fsf_request_timeout_handler; |
| 33 | fsf_req->timer.data = (unsigned long) fsf_req->adapter; |
| 34 | fsf_req->timer.expires = jiffies + timeout; |
| 35 | add_timer(&fsf_req->timer); |
| 36 | } |
| 37 | |
| 38 | static void zfcp_fsf_start_erp_timer(struct zfcp_fsf_req *fsf_req) |
| 39 | { |
| 40 | BUG_ON(!fsf_req->erp_action); |
| 41 | fsf_req->timer.function = zfcp_erp_timeout_handler; |
| 42 | fsf_req->timer.data = (unsigned long) fsf_req->erp_action; |
| 43 | fsf_req->timer.expires = jiffies + 30 * HZ; |
| 44 | add_timer(&fsf_req->timer); |
| 45 | } |
| 46 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | /* association between FSF command and FSF QTCB type */ |
| 48 | static u32 fsf_qtcb_type[] = { |
| 49 | [FSF_QTCB_FCP_CMND] = FSF_IO_COMMAND, |
| 50 | [FSF_QTCB_ABORT_FCP_CMND] = FSF_SUPPORT_COMMAND, |
| 51 | [FSF_QTCB_OPEN_PORT_WITH_DID] = FSF_SUPPORT_COMMAND, |
| 52 | [FSF_QTCB_OPEN_LUN] = FSF_SUPPORT_COMMAND, |
| 53 | [FSF_QTCB_CLOSE_LUN] = FSF_SUPPORT_COMMAND, |
| 54 | [FSF_QTCB_CLOSE_PORT] = FSF_SUPPORT_COMMAND, |
| 55 | [FSF_QTCB_CLOSE_PHYSICAL_PORT] = FSF_SUPPORT_COMMAND, |
| 56 | [FSF_QTCB_SEND_ELS] = FSF_SUPPORT_COMMAND, |
| 57 | [FSF_QTCB_SEND_GENERIC] = FSF_SUPPORT_COMMAND, |
| 58 | [FSF_QTCB_EXCHANGE_CONFIG_DATA] = FSF_CONFIG_COMMAND, |
| 59 | [FSF_QTCB_EXCHANGE_PORT_DATA] = FSF_PORT_COMMAND, |
| 60 | [FSF_QTCB_DOWNLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND, |
| 61 | [FSF_QTCB_UPLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND |
| 62 | }; |
| 63 | |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 64 | static void zfcp_fsf_class_not_supp(struct zfcp_fsf_req *req) |
| 65 | { |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 66 | dev_err(&req->adapter->ccw_device->dev, "FCP device not " |
| 67 | "operational because of an unsupported FC class\n"); |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 68 | zfcp_erp_adapter_shutdown(req->adapter, 0, "fscns_1"); |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 69 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 70 | } |
| 71 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 72 | /** |
| 73 | * zfcp_fsf_req_free - free memory used by fsf request |
| 74 | * @fsf_req: pointer to struct zfcp_fsf_req |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 76 | void zfcp_fsf_req_free(struct zfcp_fsf_req *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 | if (likely(req->pool)) { |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 79 | if (likely(req->qtcb)) |
| 80 | mempool_free(req->qtcb, req->adapter->pool.qtcb_pool); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 81 | mempool_free(req, req->pool); |
Heiko Carstens | dd52e0e | 2006-09-18 22:28:49 +0200 | [diff] [blame] | 82 | return; |
| 83 | } |
| 84 | |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 85 | if (likely(req->qtcb)) |
| 86 | kmem_cache_free(zfcp_data.qtcb_cache, req->qtcb); |
| 87 | kfree(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 88 | } |
| 89 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 90 | 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] | 91 | { |
Swen Schillig | ecf0c77 | 2009-11-24 16:53:58 +0100 | [diff] [blame] | 92 | unsigned long flags; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 93 | struct fsf_status_read_buffer *sr_buf = req->data; |
| 94 | struct zfcp_adapter *adapter = req->adapter; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | struct zfcp_port *port; |
Christof Schmitt | 800c0ca | 2009-11-24 16:54:12 +0100 | [diff] [blame] | 96 | int d_id = ntoh24(sr_buf->d_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | |
Swen Schillig | ecf0c77 | 2009-11-24 16:53:58 +0100 | [diff] [blame] | 98 | read_lock_irqsave(&adapter->port_list_lock, flags); |
| 99 | list_for_each_entry(port, &adapter->port_list, list) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 100 | if (port->d_id == d_id) { |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 101 | zfcp_erp_port_reopen(port, 0, "fssrpc1"); |
Swen Schillig | ecf0c77 | 2009-11-24 16:53:58 +0100 | [diff] [blame] | 102 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 103 | } |
Swen Schillig | ecf0c77 | 2009-11-24 16:53:58 +0100 | [diff] [blame] | 104 | read_unlock_irqrestore(&adapter->port_list_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | } |
| 106 | |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 107 | 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] | 108 | struct fsf_link_down_info *link_down) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 110 | struct zfcp_adapter *adapter = req->adapter; |
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 | if (atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED) |
| 113 | return; |
| 114 | |
| 115 | atomic_set_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status); |
Christof Schmitt | 7093293 | 2009-04-17 15:08:15 +0200 | [diff] [blame] | 116 | |
Christof Schmitt | a2fa0ae | 2009-03-02 13:09:08 +0100 | [diff] [blame] | 117 | zfcp_scsi_schedule_rports_block(adapter); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 118 | |
| 119 | if (!link_down) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | goto out; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 121 | |
| 122 | switch (link_down->error_code) { |
| 123 | case FSF_PSQ_LINK_NO_LIGHT: |
| 124 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 125 | "There is no light signal from the local " |
| 126 | "fibre channel cable\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 127 | break; |
| 128 | case FSF_PSQ_LINK_WRAP_PLUG: |
| 129 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 130 | "There is a wrap plug instead of a fibre " |
| 131 | "channel cable\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 132 | break; |
| 133 | case FSF_PSQ_LINK_NO_FCP: |
| 134 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 135 | "The adjacent fibre channel node does not " |
| 136 | "support FCP\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 137 | break; |
| 138 | case FSF_PSQ_LINK_FIRMWARE_UPDATE: |
| 139 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 140 | "The FCP device is suspended because of a " |
| 141 | "firmware update\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 142 | break; |
| 143 | case FSF_PSQ_LINK_INVALID_WWPN: |
| 144 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 145 | "The FCP device detected a WWPN that is " |
| 146 | "duplicate or not valid\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 147 | break; |
| 148 | case FSF_PSQ_LINK_NO_NPIV_SUPPORT: |
| 149 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 150 | "The fibre channel fabric does not support NPIV\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 151 | break; |
| 152 | case FSF_PSQ_LINK_NO_FCP_RESOURCES: |
| 153 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 154 | "The FCP adapter cannot support more NPIV ports\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 155 | break; |
| 156 | case FSF_PSQ_LINK_NO_FABRIC_RESOURCES: |
| 157 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 158 | "The adjacent switch cannot support " |
| 159 | "more NPIV ports\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 160 | break; |
| 161 | case FSF_PSQ_LINK_FABRIC_LOGIN_UNABLE: |
| 162 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 163 | "The FCP adapter could not log in to the " |
| 164 | "fibre channel fabric\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 165 | break; |
| 166 | case FSF_PSQ_LINK_WWPN_ASSIGNMENT_CORRUPTED: |
| 167 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 168 | "The WWPN assignment file on the FCP adapter " |
| 169 | "has been damaged\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 170 | break; |
| 171 | case FSF_PSQ_LINK_MODE_TABLE_CURRUPTED: |
| 172 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 173 | "The mode table on the FCP adapter " |
| 174 | "has been damaged\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 175 | break; |
| 176 | case FSF_PSQ_LINK_NO_WWPN_ASSIGNMENT: |
| 177 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 178 | "All NPIV ports on the FCP adapter have " |
| 179 | "been assigned\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 180 | break; |
| 181 | default: |
| 182 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 183 | "The link between the FCP adapter and " |
| 184 | "the FC fabric is down\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 185 | } |
| 186 | out: |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 187 | zfcp_erp_set_adapter_status(adapter, ZFCP_STATUS_COMMON_ERP_FAILED); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 188 | } |
| 189 | |
| 190 | static void zfcp_fsf_status_read_link_down(struct zfcp_fsf_req *req) |
| 191 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 192 | struct fsf_status_read_buffer *sr_buf = req->data; |
| 193 | struct fsf_link_down_info *ldi = |
| 194 | (struct fsf_link_down_info *) &sr_buf->payload; |
| 195 | |
| 196 | switch (sr_buf->status_subtype) { |
| 197 | case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK: |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 198 | zfcp_fsf_link_down_info_eval(req, ldi); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 199 | break; |
| 200 | case FSF_STATUS_READ_SUB_FDISC_FAILED: |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 201 | zfcp_fsf_link_down_info_eval(req, ldi); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 202 | break; |
| 203 | case FSF_STATUS_READ_SUB_FIRMWARE_UPDATE: |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 204 | zfcp_fsf_link_down_info_eval(req, NULL); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 205 | }; |
| 206 | } |
| 207 | |
| 208 | static void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req) |
| 209 | { |
| 210 | struct zfcp_adapter *adapter = req->adapter; |
| 211 | struct fsf_status_read_buffer *sr_buf = req->data; |
| 212 | |
| 213 | if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { |
Swen Schillig | a54ca0f | 2010-12-02 15:16:14 +0100 | [diff] [blame] | 214 | zfcp_dbf_hba_fsf_uss("fssrh_1", req); |
Christof Schmitt | c7b279a | 2011-02-22 19:54:40 +0100 | [diff] [blame^] | 215 | mempool_free(virt_to_page(sr_buf), adapter->pool.sr_data); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 216 | zfcp_fsf_req_free(req); |
| 217 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 218 | } |
| 219 | |
Swen Schillig | a54ca0f | 2010-12-02 15:16:14 +0100 | [diff] [blame] | 220 | zfcp_dbf_hba_fsf_uss("fssrh_2", req); |
Maxim Shchetynin | 8a36e45 | 2005-09-13 21:50:38 +0200 | [diff] [blame] | 221 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 222 | switch (sr_buf->status_type) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | case FSF_STATUS_READ_PORT_CLOSED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 224 | zfcp_fsf_status_read_port_closed(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 225 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | case FSF_STATUS_READ_INCOMING_ELS: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 227 | zfcp_fc_incoming_els(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 229 | case FSF_STATUS_READ_SENSE_DATA_AVAIL: |
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_BIT_ERROR_THRESHOLD: |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 232 | dev_warn(&adapter->ccw_device->dev, |
| 233 | "The error threshold for checksum statistics " |
| 234 | "has been exceeded\n"); |
Swen Schillig | a54ca0f | 2010-12-02 15:16:14 +0100 | [diff] [blame] | 235 | zfcp_dbf_hba_bit_err("fssrh_3", req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | case FSF_STATUS_READ_LINK_DOWN: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 238 | zfcp_fsf_status_read_link_down(req); |
Sven Schuetz | 2d1e547 | 2010-07-16 15:37:39 +0200 | [diff] [blame] | 239 | zfcp_fc_enqueue_event(adapter, FCH_EVT_LINKDOWN, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | case FSF_STATUS_READ_LINK_UP: |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 242 | dev_info(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 243 | "The local link has been restored\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | /* All ports should be marked as ready to run again */ |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 245 | zfcp_erp_set_adapter_status(adapter, |
| 246 | ZFCP_STATUS_COMMON_RUNNING); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | zfcp_erp_adapter_reopen(adapter, |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 248 | ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | |
| 249 | ZFCP_STATUS_COMMON_ERP_FAILED, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 250 | "fssrh_2"); |
Sven Schuetz | 2d1e547 | 2010-07-16 15:37:39 +0200 | [diff] [blame] | 251 | zfcp_fc_enqueue_event(adapter, FCH_EVT_LINKUP, 0); |
| 252 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | break; |
Maxim Shchetynin | 9eb69af | 2006-01-05 09:56:47 +0100 | [diff] [blame] | 254 | case FSF_STATUS_READ_NOTIFICATION_LOST: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 255 | if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_ACT_UPDATED) |
Christof Schmitt | a1ca483 | 2010-09-08 14:39:59 +0200 | [diff] [blame] | 256 | zfcp_cfdc_adapter_access_changed(adapter); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 257 | if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_INCOMING_ELS) |
Swen Schillig | 9eae07e | 2009-11-24 16:54:06 +0100 | [diff] [blame] | 258 | queue_work(adapter->work_queue, &adapter->scan_work); |
Maxim Shchetynin | 9eb69af | 2006-01-05 09:56:47 +0100 | [diff] [blame] | 259 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | case FSF_STATUS_READ_CFDC_UPDATED: |
Christof Schmitt | a1ca483 | 2010-09-08 14:39:59 +0200 | [diff] [blame] | 261 | zfcp_cfdc_adapter_access_changed(adapter); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 262 | break; |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 263 | case FSF_STATUS_READ_FEATURE_UPDATE_ALERT: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 264 | adapter->adapter_features = sr_buf->payload.word[0]; |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 265 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 267 | |
Christof Schmitt | c7b279a | 2011-02-22 19:54:40 +0100 | [diff] [blame^] | 268 | mempool_free(virt_to_page(sr_buf), adapter->pool.sr_data); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 269 | zfcp_fsf_req_free(req); |
Swen Schillig | d26ab06 | 2008-05-19 12:17:37 +0200 | [diff] [blame] | 270 | |
| 271 | atomic_inc(&adapter->stat_miss); |
Swen Schillig | 4544683 | 2009-08-18 15:43:17 +0200 | [diff] [blame] | 272 | queue_work(adapter->work_queue, &adapter->stat_work); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 273 | } |
| 274 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 275 | static void zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 276 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 277 | switch (req->qtcb->header.fsf_status_qual.word[0]) { |
| 278 | case FSF_SQ_FCP_RSP_AVAILABLE: |
| 279 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
| 280 | case FSF_SQ_NO_RETRY_POSSIBLE: |
| 281 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
| 282 | return; |
| 283 | case FSF_SQ_COMMAND_ABORTED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 284 | break; |
| 285 | case FSF_SQ_NO_RECOM: |
| 286 | dev_err(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 287 | "The FCP adapter reported a problem " |
| 288 | "that cannot be recovered\n"); |
Christof Schmitt | 339f4f4 | 2010-07-16 15:37:43 +0200 | [diff] [blame] | 289 | zfcp_qdio_siosl(req->adapter); |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 290 | zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfsqe1"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 291 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 292 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 293 | /* all non-return stats set FSFREQ_ERROR*/ |
| 294 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 295 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 297 | static void zfcp_fsf_fsfstatus_eval(struct zfcp_fsf_req *req) |
| 298 | { |
| 299 | if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) |
| 300 | return; |
Andreas Herrmann | 059c97d | 2005-09-13 21:47:52 +0200 | [diff] [blame] | 301 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 302 | switch (req->qtcb->header.fsf_status) { |
| 303 | case FSF_UNKNOWN_COMMAND: |
| 304 | dev_err(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 305 | "The FCP adapter does not recognize the command 0x%x\n", |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 306 | req->qtcb->header.fsf_command); |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 307 | zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfse_1"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 308 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | case FSF_ADAPTER_STATUS_AVAILABLE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 311 | zfcp_fsf_fsfstatus_qual_eval(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 312 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 313 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | } |
| 315 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 316 | static void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 317 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 318 | struct zfcp_adapter *adapter = req->adapter; |
| 319 | struct fsf_qtcb *qtcb = req->qtcb; |
| 320 | union fsf_prot_status_qual *psq = &qtcb->prefix.prot_status_qual; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 321 | |
Swen Schillig | 5771710 | 2009-08-18 15:43:21 +0200 | [diff] [blame] | 322 | zfcp_dbf_hba_fsf_response(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 324 | if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 325 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 326 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | } |
| 328 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 329 | switch (qtcb->prefix.prot_status) { |
| 330 | case FSF_PROT_GOOD: |
| 331 | case FSF_PROT_FSF_STATUS_PRESENTED: |
| 332 | return; |
| 333 | case FSF_PROT_QTCB_VERSION_ERROR: |
| 334 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 335 | "QTCB version 0x%x not supported by FCP adapter " |
| 336 | "(0x%x to 0x%x)\n", FSF_QTCB_CURRENT_VERSION, |
| 337 | psq->word[0], psq->word[1]); |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 338 | zfcp_erp_adapter_shutdown(adapter, 0, "fspse_1"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 340 | case FSF_PROT_ERROR_STATE: |
| 341 | case FSF_PROT_SEQ_NUMB_ERROR: |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 342 | zfcp_erp_adapter_reopen(adapter, 0, "fspse_2"); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 343 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 345 | case FSF_PROT_UNSUPP_QTCB_TYPE: |
| 346 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 347 | "The QTCB type is not supported by the FCP adapter\n"); |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 348 | zfcp_erp_adapter_shutdown(adapter, 0, "fspse_3"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 349 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 350 | case FSF_PROT_HOST_CONNECTION_INITIALIZING: |
| 351 | atomic_set_mask(ZFCP_STATUS_ADAPTER_HOST_CON_INIT, |
| 352 | &adapter->status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 353 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 354 | case FSF_PROT_DUPLICATE_REQUEST_ID: |
| 355 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 356 | "0x%Lx is an ambiguous request identifier\n", |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 357 | (unsigned long long)qtcb->bottom.support.req_handle); |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 358 | zfcp_erp_adapter_shutdown(adapter, 0, "fspse_4"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 359 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 360 | case FSF_PROT_LINK_DOWN: |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 361 | zfcp_fsf_link_down_info_eval(req, &psq->link_down_info); |
Christof Schmitt | 452b505 | 2010-02-17 11:18:51 +0100 | [diff] [blame] | 362 | /* go through reopen to flush pending requests */ |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 363 | zfcp_erp_adapter_reopen(adapter, 0, "fspse_6"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 364 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 365 | case FSF_PROT_REEST_QUEUE: |
| 366 | /* All ports should be marked as ready to run again */ |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 367 | zfcp_erp_set_adapter_status(adapter, |
| 368 | ZFCP_STATUS_COMMON_RUNNING); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 369 | zfcp_erp_adapter_reopen(adapter, |
| 370 | ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 371 | ZFCP_STATUS_COMMON_ERP_FAILED, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 372 | "fspse_8"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 373 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 374 | default: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 375 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 376 | "0x%x is not a valid transfer protocol status\n", |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 377 | qtcb->prefix.prot_status); |
Christof Schmitt | 339f4f4 | 2010-07-16 15:37:43 +0200 | [diff] [blame] | 378 | zfcp_qdio_siosl(adapter); |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 379 | zfcp_erp_adapter_shutdown(adapter, 0, "fspse_9"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 380 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 381 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 382 | } |
| 383 | |
| 384 | /** |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 385 | * zfcp_fsf_req_complete - process completion of a FSF request |
| 386 | * @fsf_req: The FSF request that has been completed. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | * |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 388 | * When a request has been completed either from the FCP adapter, |
| 389 | * or it has been dismissed due to a queue shutdown, this function |
| 390 | * is called to process the completion status and trigger further |
| 391 | * events related to the FSF request. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | */ |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 393 | static void zfcp_fsf_req_complete(struct zfcp_fsf_req *req) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 394 | { |
| 395 | if (unlikely(req->fsf_command == FSF_QTCB_UNSOLICITED_STATUS)) { |
| 396 | zfcp_fsf_status_read_handler(req); |
| 397 | return; |
| 398 | } |
| 399 | |
| 400 | del_timer(&req->timer); |
| 401 | zfcp_fsf_protstatus_eval(req); |
| 402 | zfcp_fsf_fsfstatus_eval(req); |
| 403 | req->handler(req); |
| 404 | |
| 405 | if (req->erp_action) |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 406 | zfcp_erp_notify(req->erp_action, 0); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 407 | |
| 408 | if (likely(req->status & ZFCP_STATUS_FSFREQ_CLEANUP)) |
| 409 | zfcp_fsf_req_free(req); |
| 410 | else |
Swen Schillig | 058b864 | 2009-08-18 15:43:14 +0200 | [diff] [blame] | 411 | complete(&req->completion); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 412 | } |
| 413 | |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 414 | /** |
| 415 | * zfcp_fsf_req_dismiss_all - dismiss all fsf requests |
| 416 | * @adapter: pointer to struct zfcp_adapter |
| 417 | * |
| 418 | * Never ever call this without shutting down the adapter first. |
| 419 | * Otherwise the adapter would continue using and corrupting s390 storage. |
| 420 | * Included BUG_ON() call to ensure this is done. |
| 421 | * ERP is supposed to be the only user of this function. |
| 422 | */ |
| 423 | void zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter) |
| 424 | { |
| 425 | struct zfcp_fsf_req *req, *tmp; |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 426 | LIST_HEAD(remove_queue); |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 427 | |
| 428 | BUG_ON(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP); |
Christof Schmitt | b6bd2fb | 2010-02-17 11:18:50 +0100 | [diff] [blame] | 429 | zfcp_reqlist_move(adapter->req_list, &remove_queue); |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 430 | |
| 431 | list_for_each_entry_safe(req, tmp, &remove_queue, list) { |
| 432 | list_del(&req->list); |
| 433 | req->status |= ZFCP_STATUS_FSFREQ_DISMISSED; |
| 434 | zfcp_fsf_req_complete(req); |
| 435 | } |
| 436 | } |
| 437 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 438 | static int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 439 | { |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 440 | struct fsf_qtcb_bottom_config *bottom = &req->qtcb->bottom.config; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 441 | struct zfcp_adapter *adapter = req->adapter; |
Andreas Herrmann | 13e1e1f | 2005-09-19 16:56:17 +0200 | [diff] [blame] | 442 | struct Scsi_Host *shost = adapter->scsi_host; |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 443 | struct fc_els_flogi *nsp, *plogi; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 445 | /* adjust pointers for missing command code */ |
| 446 | nsp = (struct fc_els_flogi *) ((u8 *)&bottom->nport_serv_param |
| 447 | - sizeof(u32)); |
| 448 | plogi = (struct fc_els_flogi *) ((u8 *)&bottom->plogi_payload |
| 449 | - sizeof(u32)); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 450 | |
| 451 | if (req->data) |
| 452 | memcpy(req->data, bottom, sizeof(*bottom)); |
| 453 | |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 454 | fc_host_port_name(shost) = nsp->fl_wwpn; |
| 455 | fc_host_node_name(shost) = nsp->fl_wwnn; |
Christof Schmitt | 800c0ca | 2009-11-24 16:54:12 +0100 | [diff] [blame] | 456 | fc_host_port_id(shost) = ntoh24(bottom->s_id); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 457 | fc_host_speed(shost) = bottom->fc_link_speed; |
| 458 | fc_host_supported_classes(shost) = FC_COS_CLASS2 | FC_COS_CLASS3; |
| 459 | |
| 460 | adapter->hydra_version = bottom->adapter_type; |
Christof Schmitt | faf4cd8 | 2010-07-16 15:37:36 +0200 | [diff] [blame] | 461 | adapter->timer_ticks = bottom->timer_interval & ZFCP_FSF_TIMER_INT_MASK; |
Christof Schmitt | 8d88cf3 | 2010-06-21 10:11:33 +0200 | [diff] [blame] | 462 | adapter->stat_read_buf_num = max(bottom->status_read_buf_num, |
| 463 | (u16)FSF_STATUS_READS_RECOM); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 464 | |
| 465 | if (fc_host_permanent_port_name(shost) == -1) |
| 466 | fc_host_permanent_port_name(shost) = fc_host_port_name(shost); |
| 467 | |
| 468 | switch (bottom->fc_topology) { |
| 469 | case FSF_TOPO_P2P: |
Christof Schmitt | 800c0ca | 2009-11-24 16:54:12 +0100 | [diff] [blame] | 470 | adapter->peer_d_id = ntoh24(bottom->peer_d_id); |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 471 | adapter->peer_wwpn = plogi->fl_wwpn; |
| 472 | adapter->peer_wwnn = plogi->fl_wwnn; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 473 | fc_host_port_type(shost) = FC_PORTTYPE_PTP; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 474 | break; |
| 475 | case FSF_TOPO_FABRIC: |
| 476 | fc_host_port_type(shost) = FC_PORTTYPE_NPORT; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 477 | break; |
| 478 | case FSF_TOPO_AL: |
| 479 | fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; |
Christof Schmitt | dceab65 | 2009-05-15 13:18:18 +0200 | [diff] [blame] | 480 | /* fall through */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 481 | default: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 482 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 483 | "Unknown or unsupported arbitrated loop " |
| 484 | "fibre channel topology detected\n"); |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 485 | zfcp_erp_adapter_shutdown(adapter, 0, "fsece_1"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 486 | return -EIO; |
| 487 | } |
| 488 | |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 489 | zfcp_scsi_set_prot(adapter); |
| 490 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 491 | return 0; |
| 492 | } |
| 493 | |
| 494 | static void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req) |
| 495 | { |
| 496 | struct zfcp_adapter *adapter = req->adapter; |
| 497 | struct fsf_qtcb *qtcb = req->qtcb; |
| 498 | struct fsf_qtcb_bottom_config *bottom = &qtcb->bottom.config; |
| 499 | struct Scsi_Host *shost = adapter->scsi_host; |
| 500 | |
| 501 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
| 502 | return; |
| 503 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 504 | adapter->fsf_lic_version = bottom->lic_version; |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 505 | adapter->adapter_features = bottom->adapter_features; |
| 506 | adapter->connection_features = bottom->connection_features; |
| 6f71d9b | 2005-04-10 23:04:28 -0500 | [diff] [blame] | 507 | adapter->peer_wwpn = 0; |
| 508 | adapter->peer_wwnn = 0; |
| 509 | adapter->peer_d_id = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 510 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 511 | switch (qtcb->header.fsf_status) { |
| 512 | case FSF_GOOD: |
| 513 | if (zfcp_fsf_exchange_config_evaluate(req)) |
| 514 | return; |
Swen Schillig | 52ef11a | 2007-08-28 09:31:09 +0200 | [diff] [blame] | 515 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 516 | if (bottom->max_qtcb_size < sizeof(struct fsf_qtcb)) { |
| 517 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 518 | "FCP adapter maximum QTCB size (%d bytes) " |
| 519 | "is too small\n", |
| 520 | bottom->max_qtcb_size); |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 521 | zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh1"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 522 | return; |
| 523 | } |
| 524 | atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, |
| 525 | &adapter->status); |
| 526 | break; |
| 527 | case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: |
Andreas Herrmann | 13e1e1f | 2005-09-19 16:56:17 +0200 | [diff] [blame] | 528 | fc_host_node_name(shost) = 0; |
| 529 | fc_host_port_name(shost) = 0; |
| 530 | fc_host_port_id(shost) = 0; |
| 531 | fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; |
Andreas Herrmann | ad757cd | 2006-01-13 02:26:11 +0100 | [diff] [blame] | 532 | fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 533 | adapter->hydra_version = 0; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 534 | |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 535 | zfcp_fsf_link_down_info_eval(req, |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 536 | &qtcb->header.fsf_status_qual.link_down_info); |
| 537 | break; |
| 538 | default: |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 539 | zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh3"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 540 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 541 | } |
| 542 | |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 543 | if (adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 544 | adapter->hardware_version = bottom->hardware_version; |
Andreas Herrmann | 13e1e1f | 2005-09-19 16:56:17 +0200 | [diff] [blame] | 545 | memcpy(fc_host_serial_number(shost), bottom->serial_number, |
| 546 | min(FC_SERIAL_NUMBER_SIZE, 17)); |
| 547 | EBCASC(fc_host_serial_number(shost), |
| 548 | min(FC_SERIAL_NUMBER_SIZE, 17)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 549 | } |
| 550 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 551 | if (FSF_QTCB_CURRENT_VERSION < bottom->low_qtcb_version) { |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 552 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 553 | "The FCP adapter only supports newer " |
| 554 | "control block versions\n"); |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 555 | zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh4"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 556 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 557 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 558 | if (FSF_QTCB_CURRENT_VERSION > bottom->high_qtcb_version) { |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 559 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 560 | "The FCP adapter only supports older " |
| 561 | "control block versions\n"); |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 562 | zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh5"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 563 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 564 | } |
| 565 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 566 | static void zfcp_fsf_exchange_port_evaluate(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 567 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 568 | struct zfcp_adapter *adapter = req->adapter; |
| 569 | struct fsf_qtcb_bottom_port *bottom = &req->qtcb->bottom.port; |
| 570 | struct Scsi_Host *shost = adapter->scsi_host; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 571 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 572 | if (req->data) |
| 573 | memcpy(req->data, bottom, sizeof(*bottom)); |
Andreas Herrmann | 2f8f3ed | 2006-02-11 01:41:50 +0100 | [diff] [blame] | 574 | |
Christof Schmitt | 0282985 | 2009-03-02 13:09:06 +0100 | [diff] [blame] | 575 | if (adapter->connection_features & FSF_FEATURE_NPIV_MODE) { |
Andreas Herrmann | 2f8f3ed | 2006-02-11 01:41:50 +0100 | [diff] [blame] | 576 | fc_host_permanent_port_name(shost) = bottom->wwpn; |
Christof Schmitt | 0282985 | 2009-03-02 13:09:06 +0100 | [diff] [blame] | 577 | fc_host_port_type(shost) = FC_PORTTYPE_NPIV; |
| 578 | } else |
Andreas Herrmann | 2f8f3ed | 2006-02-11 01:41:50 +0100 | [diff] [blame] | 579 | fc_host_permanent_port_name(shost) = fc_host_port_name(shost); |
| 580 | fc_host_maxframe_size(shost) = bottom->maximum_frame_size; |
| 581 | fc_host_supported_speeds(shost) = bottom->supported_speed; |
Christof Schmitt | 2d8e62b | 2010-02-17 11:18:58 +0100 | [diff] [blame] | 582 | memcpy(fc_host_supported_fc4s(shost), bottom->supported_fc4_types, |
| 583 | FC_FC4_LIST_SIZE); |
| 584 | memcpy(fc_host_active_fc4s(shost), bottom->active_fc4_types, |
| 585 | FC_FC4_LIST_SIZE); |
Andreas Herrmann | 2f8f3ed | 2006-02-11 01:41:50 +0100 | [diff] [blame] | 586 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 587 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 588 | 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] | 589 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 590 | struct fsf_qtcb *qtcb = req->qtcb; |
Andreas Herrmann | 2f8f3ed | 2006-02-11 01:41:50 +0100 | [diff] [blame] | 591 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 592 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 593 | return; |
| 594 | |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 595 | switch (qtcb->header.fsf_status) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 596 | case FSF_GOOD: |
| 597 | zfcp_fsf_exchange_port_evaluate(req); |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 598 | break; |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 599 | case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 600 | zfcp_fsf_exchange_port_evaluate(req); |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 601 | zfcp_fsf_link_down_info_eval(req, |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 602 | &qtcb->header.fsf_status_qual.link_down_info); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 603 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 604 | } |
| 605 | } |
| 606 | |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 607 | static struct zfcp_fsf_req *zfcp_fsf_alloc(mempool_t *pool) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 608 | { |
| 609 | struct zfcp_fsf_req *req; |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 610 | |
| 611 | if (likely(pool)) |
| 612 | req = mempool_alloc(pool, GFP_ATOMIC); |
| 613 | else |
| 614 | req = kmalloc(sizeof(*req), GFP_ATOMIC); |
| 615 | |
| 616 | if (unlikely(!req)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 617 | return NULL; |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 618 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 619 | memset(req, 0, sizeof(*req)); |
Christof Schmitt | 88f2a97 | 2008-11-04 16:35:07 +0100 | [diff] [blame] | 620 | req->pool = pool; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 621 | return req; |
| 622 | } |
| 623 | |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 624 | static struct fsf_qtcb *zfcp_qtcb_alloc(mempool_t *pool) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 625 | { |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 626 | struct fsf_qtcb *qtcb; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 627 | |
| 628 | if (likely(pool)) |
| 629 | qtcb = mempool_alloc(pool, GFP_ATOMIC); |
| 630 | else |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 631 | qtcb = kmem_cache_alloc(zfcp_data.qtcb_cache, GFP_ATOMIC); |
| 632 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 633 | if (unlikely(!qtcb)) |
| 634 | return NULL; |
| 635 | |
| 636 | memset(qtcb, 0, sizeof(*qtcb)); |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 637 | return qtcb; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 638 | } |
| 639 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 640 | static struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_qdio *qdio, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 641 | u32 fsf_cmd, u32 sbtype, |
| 642 | mempool_t *pool) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 643 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 644 | struct zfcp_adapter *adapter = qdio->adapter; |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 645 | struct zfcp_fsf_req *req = zfcp_fsf_alloc(pool); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 646 | |
| 647 | if (unlikely(!req)) |
Christof Schmitt | 1e9b164 | 2009-07-13 15:06:04 +0200 | [diff] [blame] | 648 | return ERR_PTR(-ENOMEM); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 649 | |
| 650 | if (adapter->req_no == 0) |
| 651 | adapter->req_no++; |
| 652 | |
| 653 | INIT_LIST_HEAD(&req->list); |
| 654 | init_timer(&req->timer); |
Swen Schillig | 058b864 | 2009-08-18 15:43:14 +0200 | [diff] [blame] | 655 | init_completion(&req->completion); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 656 | |
| 657 | req->adapter = adapter; |
| 658 | req->fsf_command = fsf_cmd; |
Christof Schmitt | 52bfb55 | 2009-03-02 13:08:58 +0100 | [diff] [blame] | 659 | req->req_id = adapter->req_no; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 660 | |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 661 | if (likely(fsf_cmd != FSF_QTCB_UNSOLICITED_STATUS)) { |
| 662 | if (likely(pool)) |
| 663 | req->qtcb = zfcp_qtcb_alloc(adapter->pool.qtcb_pool); |
| 664 | else |
| 665 | req->qtcb = zfcp_qtcb_alloc(NULL); |
| 666 | |
| 667 | if (unlikely(!req->qtcb)) { |
| 668 | zfcp_fsf_req_free(req); |
| 669 | return ERR_PTR(-ENOMEM); |
| 670 | } |
| 671 | |
Christof Schmitt | 5bdecd2 | 2010-02-17 11:18:55 +0100 | [diff] [blame] | 672 | req->seq_no = adapter->fsf_req_seq_no; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 673 | req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 674 | req->qtcb->prefix.req_id = req->req_id; |
| 675 | req->qtcb->prefix.ulp_info = 26; |
| 676 | req->qtcb->prefix.qtcb_type = fsf_qtcb_type[req->fsf_command]; |
| 677 | req->qtcb->prefix.qtcb_version = FSF_QTCB_CURRENT_VERSION; |
| 678 | req->qtcb->header.req_handle = req->req_id; |
| 679 | req->qtcb->header.fsf_command = req->fsf_command; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 680 | } |
| 681 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 682 | zfcp_qdio_req_init(adapter->qdio, &req->qdio_req, req->req_id, sbtype, |
| 683 | req->qtcb, sizeof(struct fsf_qtcb)); |
| 684 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 685 | return req; |
| 686 | } |
| 687 | |
| 688 | static int zfcp_fsf_req_send(struct zfcp_fsf_req *req) |
| 689 | { |
| 690 | struct zfcp_adapter *adapter = req->adapter; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 691 | struct zfcp_qdio *qdio = adapter->qdio; |
Christof Schmitt | b6bd2fb | 2010-02-17 11:18:50 +0100 | [diff] [blame] | 692 | int with_qtcb = (req->qtcb != NULL); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 693 | int req_id = req->req_id; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 694 | |
Christof Schmitt | b6bd2fb | 2010-02-17 11:18:50 +0100 | [diff] [blame] | 695 | zfcp_reqlist_add(adapter->req_list, req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 696 | |
Swen Schillig | 706eca4 | 2010-07-16 15:37:38 +0200 | [diff] [blame] | 697 | req->qdio_req.qdio_outb_usage = atomic_read(&qdio->req_q_free); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 698 | req->issued = get_clock(); |
Christof Schmitt | 34c2b71 | 2010-02-17 11:18:59 +0100 | [diff] [blame] | 699 | if (zfcp_qdio_send(qdio, &req->qdio_req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 700 | del_timer(&req->timer); |
Christof Schmitt | 3765138 | 2008-11-04 16:35:08 +0100 | [diff] [blame] | 701 | /* lookup request again, list might have changed */ |
Christof Schmitt | b6bd2fb | 2010-02-17 11:18:50 +0100 | [diff] [blame] | 702 | zfcp_reqlist_find_rm(adapter->req_list, req_id); |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 703 | zfcp_erp_adapter_reopen(adapter, 0, "fsrs__1"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 704 | return -EIO; |
| 705 | } |
| 706 | |
| 707 | /* Don't increase for unsolicited status */ |
Martin Petermann | 135ea13 | 2009-04-17 15:08:01 +0200 | [diff] [blame] | 708 | if (with_qtcb) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 709 | adapter->fsf_req_seq_no++; |
Christof Schmitt | 52bfb55 | 2009-03-02 13:08:58 +0100 | [diff] [blame] | 710 | adapter->req_no++; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 711 | |
| 712 | return 0; |
| 713 | } |
| 714 | |
| 715 | /** |
| 716 | * zfcp_fsf_status_read - send status read request |
| 717 | * @adapter: pointer to struct zfcp_adapter |
| 718 | * @req_flags: request flags |
| 719 | * Returns: 0 on success, ERROR otherwise |
| 720 | */ |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 721 | int zfcp_fsf_status_read(struct zfcp_qdio *qdio) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 722 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 723 | struct zfcp_adapter *adapter = qdio->adapter; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 724 | struct zfcp_fsf_req *req; |
| 725 | struct fsf_status_read_buffer *sr_buf; |
Christof Schmitt | c7b279a | 2011-02-22 19:54:40 +0100 | [diff] [blame^] | 726 | struct page *page; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 727 | int retval = -EIO; |
| 728 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 729 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 730 | if (zfcp_qdio_sbal_get(qdio)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 731 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 732 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 733 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_UNSOLICITED_STATUS, 0, |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 734 | adapter->pool.status_read_req); |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 735 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 736 | retval = PTR_ERR(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 737 | goto out; |
| 738 | } |
| 739 | |
Christof Schmitt | c7b279a | 2011-02-22 19:54:40 +0100 | [diff] [blame^] | 740 | page = mempool_alloc(adapter->pool.sr_data, GFP_ATOMIC); |
| 741 | if (!page) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 742 | retval = -ENOMEM; |
| 743 | goto failed_buf; |
| 744 | } |
Christof Schmitt | c7b279a | 2011-02-22 19:54:40 +0100 | [diff] [blame^] | 745 | sr_buf = page_address(page); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 746 | memset(sr_buf, 0, sizeof(*sr_buf)); |
| 747 | req->data = sr_buf; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 748 | |
| 749 | zfcp_qdio_fill_next(qdio, &req->qdio_req, sr_buf, sizeof(*sr_buf)); |
| 750 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 751 | |
| 752 | retval = zfcp_fsf_req_send(req); |
| 753 | if (retval) |
| 754 | goto failed_req_send; |
| 755 | |
| 756 | goto out; |
| 757 | |
| 758 | failed_req_send: |
Swen Schillig | a54ca0f | 2010-12-02 15:16:14 +0100 | [diff] [blame] | 759 | req->data = NULL; |
Christof Schmitt | c7b279a | 2011-02-22 19:54:40 +0100 | [diff] [blame^] | 760 | mempool_free(virt_to_page(sr_buf), adapter->pool.sr_data); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 761 | failed_buf: |
Swen Schillig | a54ca0f | 2010-12-02 15:16:14 +0100 | [diff] [blame] | 762 | zfcp_dbf_hba_fsf_uss("fssr__1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 763 | zfcp_fsf_req_free(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 764 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 765 | spin_unlock_irq(&qdio->req_q_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 766 | return retval; |
| 767 | } |
| 768 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 769 | 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] | 770 | { |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 771 | struct scsi_device *sdev = req->data; |
| 772 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 773 | union fsf_status_qual *fsq = &req->qtcb->header.fsf_status_qual; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 774 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 775 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
| 776 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 777 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 778 | switch (req->qtcb->header.fsf_status) { |
| 779 | case FSF_PORT_HANDLE_NOT_VALID: |
| 780 | if (fsq->word[0] == fsq->word[1]) { |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 781 | zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 782 | "fsafch1"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 783 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 784 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 785 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 786 | case FSF_LUN_HANDLE_NOT_VALID: |
| 787 | if (fsq->word[0] == fsq->word[1]) { |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 788 | zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fsafch2"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 789 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 790 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 791 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 792 | case FSF_FCP_COMMAND_DOES_NOT_EXIST: |
| 793 | req->status |= ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 794 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 795 | case FSF_PORT_BOXED: |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 796 | zfcp_erp_set_port_status(zfcp_sdev->port, |
| 797 | ZFCP_STATUS_COMMON_ACCESS_BOXED); |
| 798 | zfcp_erp_port_reopen(zfcp_sdev->port, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 799 | ZFCP_STATUS_COMMON_ERP_FAILED, "fsafch3"); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 800 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 801 | break; |
| 802 | case FSF_LUN_BOXED: |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 803 | zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_ACCESS_BOXED); |
| 804 | zfcp_erp_lun_reopen(sdev, ZFCP_STATUS_COMMON_ERP_FAILED, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 805 | "fsafch4"); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 806 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 807 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 808 | case FSF_ADAPTER_STATUS_AVAILABLE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 809 | switch (fsq->word[0]) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 810 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 811 | zfcp_fc_test_link(zfcp_sdev->port); |
Christof Schmitt | dceab65 | 2009-05-15 13:18:18 +0200 | [diff] [blame] | 812 | /* fall through */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 813 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 814 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 815 | break; |
| 816 | } |
| 817 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 818 | case FSF_GOOD: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 819 | req->status |= ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED; |
| 820 | break; |
| 821 | } |
| 822 | } |
| 823 | |
| 824 | /** |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 825 | * zfcp_fsf_abort_fcp_cmnd - abort running SCSI command |
| 826 | * @scmnd: The SCSI command to abort |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 827 | * Returns: pointer to struct zfcp_fsf_req |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 828 | */ |
| 829 | |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 830 | 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] | 831 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 832 | struct zfcp_fsf_req *req = NULL; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 833 | struct scsi_device *sdev = scmnd->device; |
| 834 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); |
| 835 | struct zfcp_qdio *qdio = zfcp_sdev->port->adapter->qdio; |
| 836 | unsigned long old_req_id = (unsigned long) scmnd->host_scribble; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 837 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 838 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 839 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 840 | goto out; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 841 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_ABORT_FCP_CMND, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 842 | SBAL_FLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 843 | qdio->adapter->pool.scsi_abort); |
Swen Schillig | 633528c | 2008-11-26 18:07:37 +0100 | [diff] [blame] | 844 | if (IS_ERR(req)) { |
| 845 | req = NULL; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 846 | goto out; |
Swen Schillig | 633528c | 2008-11-26 18:07:37 +0100 | [diff] [blame] | 847 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 848 | |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 849 | if (unlikely(!(atomic_read(&zfcp_sdev->status) & |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 850 | ZFCP_STATUS_COMMON_UNBLOCKED))) |
| 851 | goto out_error_free; |
| 852 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 853 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 854 | |
Swen Schillig | 6fbf25e | 2010-11-17 14:23:41 +0100 | [diff] [blame] | 855 | req->data = sdev; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 856 | req->handler = zfcp_fsf_abort_fcp_command_handler; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 857 | req->qtcb->header.lun_handle = zfcp_sdev->lun_handle; |
| 858 | req->qtcb->header.port_handle = zfcp_sdev->port->handle; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 859 | req->qtcb->bottom.support.req_handle = (u64) old_req_id; |
| 860 | |
| 861 | zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); |
| 862 | if (!zfcp_fsf_req_send(req)) |
| 863 | goto out; |
| 864 | |
| 865 | out_error_free: |
| 866 | zfcp_fsf_req_free(req); |
| 867 | req = NULL; |
| 868 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 869 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 870 | return req; |
| 871 | } |
| 872 | |
| 873 | static void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req) |
| 874 | { |
| 875 | struct zfcp_adapter *adapter = req->adapter; |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 876 | struct zfcp_fsf_ct_els *ct = req->data; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 877 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 878 | |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 879 | ct->status = -EINVAL; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 880 | |
| 881 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
| 882 | goto skip_fsfstatus; |
| 883 | |
| 884 | switch (header->fsf_status) { |
| 885 | case FSF_GOOD: |
Swen Schillig | 2c55b75 | 2010-12-02 15:16:13 +0100 | [diff] [blame] | 886 | zfcp_dbf_san_res("fsscth1", req); |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 887 | ct->status = 0; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 888 | break; |
| 889 | case FSF_SERVICE_CLASS_NOT_SUPPORTED: |
| 890 | zfcp_fsf_class_not_supp(req); |
| 891 | break; |
| 892 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 893 | switch (header->fsf_status_qual.word[0]){ |
| 894 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 895 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
| 896 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 897 | break; |
| 898 | } |
| 899 | break; |
| 900 | case FSF_ACCESS_DENIED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 901 | break; |
| 902 | case FSF_PORT_BOXED: |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 903 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 904 | break; |
| 905 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 906 | zfcp_erp_adapter_reopen(adapter, 0, "fsscth1"); |
Christof Schmitt | dceab65 | 2009-05-15 13:18:18 +0200 | [diff] [blame] | 907 | /* fall through */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 908 | case FSF_GENERIC_COMMAND_REJECTED: |
| 909 | case FSF_PAYLOAD_SIZE_MISMATCH: |
| 910 | case FSF_REQUEST_SIZE_TOO_LARGE: |
| 911 | case FSF_RESPONSE_SIZE_TOO_LARGE: |
| 912 | case FSF_SBAL_MISMATCH: |
| 913 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 914 | break; |
| 915 | } |
| 916 | |
| 917 | skip_fsfstatus: |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 918 | if (ct->handler) |
| 919 | ct->handler(ct->handler_data); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 920 | } |
| 921 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 922 | static void zfcp_fsf_setup_ct_els_unchained(struct zfcp_qdio *qdio, |
| 923 | struct zfcp_qdio_req *q_req, |
Christof Schmitt | 426f605 | 2009-07-13 15:06:06 +0200 | [diff] [blame] | 924 | struct scatterlist *sg_req, |
| 925 | struct scatterlist *sg_resp) |
| 926 | { |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 927 | zfcp_qdio_fill_next(qdio, q_req, sg_virt(sg_req), sg_req->length); |
| 928 | zfcp_qdio_fill_next(qdio, q_req, sg_virt(sg_resp), sg_resp->length); |
| 929 | zfcp_qdio_set_sbale_last(qdio, q_req); |
Christof Schmitt | 426f605 | 2009-07-13 15:06:06 +0200 | [diff] [blame] | 930 | } |
| 931 | |
Christof Schmitt | 39eb7e9a | 2008-12-19 16:57:01 +0100 | [diff] [blame] | 932 | static int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req, |
| 933 | struct scatterlist *sg_req, |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame] | 934 | struct scatterlist *sg_resp) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 935 | { |
Swen Schillig | 42428f7 | 2009-08-18 15:43:18 +0200 | [diff] [blame] | 936 | struct zfcp_adapter *adapter = req->adapter; |
Swen Schillig | 42428f7 | 2009-08-18 15:43:18 +0200 | [diff] [blame] | 937 | u32 feat = adapter->adapter_features; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 938 | int bytes; |
| 939 | |
Christof Schmitt | 39eb7e9a | 2008-12-19 16:57:01 +0100 | [diff] [blame] | 940 | if (!(feat & FSF_FEATURE_ELS_CT_CHAINED_SBALS)) { |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 941 | if (!zfcp_qdio_sg_one_sbale(sg_req) || |
| 942 | !zfcp_qdio_sg_one_sbale(sg_resp)) |
Christof Schmitt | 39eb7e9a | 2008-12-19 16:57:01 +0100 | [diff] [blame] | 943 | return -EOPNOTSUPP; |
| 944 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 945 | zfcp_fsf_setup_ct_els_unchained(adapter->qdio, &req->qdio_req, |
| 946 | sg_req, sg_resp); |
Christof Schmitt | 426f605 | 2009-07-13 15:06:06 +0200 | [diff] [blame] | 947 | return 0; |
| 948 | } |
| 949 | |
| 950 | /* use single, unchained SBAL if it can hold the request */ |
Swen Schillig | 30b6777 | 2010-06-21 10:11:31 +0200 | [diff] [blame] | 951 | 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] | 952 | zfcp_fsf_setup_ct_els_unchained(adapter->qdio, &req->qdio_req, |
| 953 | sg_req, sg_resp); |
Christof Schmitt | 39eb7e9a | 2008-12-19 16:57:01 +0100 | [diff] [blame] | 954 | return 0; |
| 955 | } |
| 956 | |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame] | 957 | 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] | 958 | if (bytes <= 0) |
Christof Schmitt | 9072df4 | 2009-07-13 15:06:07 +0200 | [diff] [blame] | 959 | return -EIO; |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 960 | zfcp_qdio_set_sbale_last(adapter->qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 961 | req->qtcb->bottom.support.req_buf_length = bytes; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 962 | zfcp_qdio_skip_to_last_sbale(&req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 963 | |
Christof Schmitt | 34c2b71 | 2010-02-17 11:18:59 +0100 | [diff] [blame] | 964 | bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->qdio_req, |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame] | 965 | sg_resp); |
Christof Schmitt | b1a5898 | 2009-09-24 10:23:21 +0200 | [diff] [blame] | 966 | req->qtcb->bottom.support.resp_buf_length = bytes; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 967 | if (bytes <= 0) |
Christof Schmitt | 9072df4 | 2009-07-13 15:06:07 +0200 | [diff] [blame] | 968 | return -EIO; |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 969 | zfcp_qdio_set_sbale_last(adapter->qdio, &req->qdio_req); |
Christof Schmitt | 98fc4d5 | 2009-08-18 15:43:26 +0200 | [diff] [blame] | 970 | |
Christof Schmitt | b1a5898 | 2009-09-24 10:23:21 +0200 | [diff] [blame] | 971 | return 0; |
| 972 | } |
| 973 | |
| 974 | static int zfcp_fsf_setup_ct_els(struct zfcp_fsf_req *req, |
| 975 | struct scatterlist *sg_req, |
| 976 | struct scatterlist *sg_resp, |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame] | 977 | unsigned int timeout) |
Christof Schmitt | b1a5898 | 2009-09-24 10:23:21 +0200 | [diff] [blame] | 978 | { |
| 979 | int ret; |
| 980 | |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame] | 981 | ret = zfcp_fsf_setup_ct_els_sbals(req, sg_req, sg_resp); |
Christof Schmitt | b1a5898 | 2009-09-24 10:23:21 +0200 | [diff] [blame] | 982 | if (ret) |
| 983 | return ret; |
| 984 | |
Christof Schmitt | 98fc4d5 | 2009-08-18 15:43:26 +0200 | [diff] [blame] | 985 | /* common settings for ct/gs and els requests */ |
Swen Schillig | 51375ee | 2010-01-14 17:19:02 +0100 | [diff] [blame] | 986 | if (timeout > 255) |
| 987 | timeout = 255; /* max value accepted by hardware */ |
Christof Schmitt | 98fc4d5 | 2009-08-18 15:43:26 +0200 | [diff] [blame] | 988 | req->qtcb->bottom.support.service_class = FSF_CLASS_3; |
Swen Schillig | 51375ee | 2010-01-14 17:19:02 +0100 | [diff] [blame] | 989 | req->qtcb->bottom.support.timeout = timeout; |
| 990 | zfcp_fsf_start_timer(req, (timeout + 10) * HZ); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 991 | |
| 992 | return 0; |
| 993 | } |
| 994 | |
| 995 | /** |
| 996 | * zfcp_fsf_send_ct - initiate a Generic Service request (FC-GS) |
| 997 | * @ct: pointer to struct zfcp_send_ct with data for request |
| 998 | * @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] | 999 | */ |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 1000 | int zfcp_fsf_send_ct(struct zfcp_fc_wka_port *wka_port, |
Swen Schillig | 51375ee | 2010-01-14 17:19:02 +0100 | [diff] [blame] | 1001 | struct zfcp_fsf_ct_els *ct, mempool_t *pool, |
| 1002 | unsigned int timeout) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1003 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1004 | struct zfcp_qdio *qdio = wka_port->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1005 | struct zfcp_fsf_req *req; |
| 1006 | int ret = -EIO; |
| 1007 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1008 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1009 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1010 | goto out; |
| 1011 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1012 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_GENERIC, |
| 1013 | SBAL_FLAGS0_TYPE_WRITE_READ, pool); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1014 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1015 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1016 | ret = PTR_ERR(req); |
| 1017 | goto out; |
| 1018 | } |
| 1019 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1020 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame] | 1021 | ret = zfcp_fsf_setup_ct_els(req, ct->req, ct->resp, timeout); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1022 | if (ret) |
| 1023 | goto failed_send; |
| 1024 | |
| 1025 | req->handler = zfcp_fsf_send_ct_handler; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1026 | req->qtcb->header.port_handle = wka_port->handle; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1027 | req->data = ct; |
| 1028 | |
Swen Schillig | 2c55b75 | 2010-12-02 15:16:13 +0100 | [diff] [blame] | 1029 | zfcp_dbf_san_req("fssct_1", req, wka_port->d_id); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1030 | |
| 1031 | ret = zfcp_fsf_req_send(req); |
| 1032 | if (ret) |
| 1033 | goto failed_send; |
| 1034 | |
| 1035 | goto out; |
| 1036 | |
| 1037 | failed_send: |
| 1038 | zfcp_fsf_req_free(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1039 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1040 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1041 | return ret; |
| 1042 | } |
| 1043 | |
| 1044 | static void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req) |
| 1045 | { |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 1046 | struct zfcp_fsf_ct_els *send_els = req->data; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1047 | struct zfcp_port *port = send_els->port; |
| 1048 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 1049 | |
| 1050 | send_els->status = -EINVAL; |
| 1051 | |
| 1052 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
| 1053 | goto skip_fsfstatus; |
| 1054 | |
| 1055 | switch (header->fsf_status) { |
| 1056 | case FSF_GOOD: |
Swen Schillig | 2c55b75 | 2010-12-02 15:16:13 +0100 | [diff] [blame] | 1057 | zfcp_dbf_san_res("fsselh1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1058 | send_els->status = 0; |
| 1059 | break; |
| 1060 | case FSF_SERVICE_CLASS_NOT_SUPPORTED: |
| 1061 | zfcp_fsf_class_not_supp(req); |
| 1062 | break; |
| 1063 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 1064 | switch (header->fsf_status_qual.word[0]){ |
| 1065 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1066 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
| 1067 | case FSF_SQ_RETRY_IF_POSSIBLE: |
| 1068 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1069 | break; |
| 1070 | } |
| 1071 | break; |
| 1072 | case FSF_ELS_COMMAND_REJECTED: |
| 1073 | case FSF_PAYLOAD_SIZE_MISMATCH: |
| 1074 | case FSF_REQUEST_SIZE_TOO_LARGE: |
| 1075 | case FSF_RESPONSE_SIZE_TOO_LARGE: |
| 1076 | break; |
| 1077 | case FSF_ACCESS_DENIED: |
Christof Schmitt | a1ca483 | 2010-09-08 14:39:59 +0200 | [diff] [blame] | 1078 | if (port) { |
| 1079 | zfcp_cfdc_port_denied(port, &header->fsf_status_qual); |
| 1080 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1081 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1082 | break; |
| 1083 | case FSF_SBAL_MISMATCH: |
| 1084 | /* should never occure, avoided in zfcp_fsf_send_els */ |
| 1085 | /* fall through */ |
| 1086 | default: |
| 1087 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1088 | break; |
| 1089 | } |
| 1090 | skip_fsfstatus: |
| 1091 | if (send_els->handler) |
| 1092 | send_els->handler(send_els->handler_data); |
| 1093 | } |
| 1094 | |
| 1095 | /** |
| 1096 | * zfcp_fsf_send_els - initiate an ELS command (FC-FS) |
| 1097 | * @els: pointer to struct zfcp_send_els with data for the command |
| 1098 | */ |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 1099 | int zfcp_fsf_send_els(struct zfcp_adapter *adapter, u32 d_id, |
Swen Schillig | 51375ee | 2010-01-14 17:19:02 +0100 | [diff] [blame] | 1100 | struct zfcp_fsf_ct_els *els, unsigned int timeout) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1101 | { |
| 1102 | struct zfcp_fsf_req *req; |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 1103 | struct zfcp_qdio *qdio = adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1104 | int ret = -EIO; |
| 1105 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1106 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1107 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1108 | goto out; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1109 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1110 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_ELS, |
| 1111 | SBAL_FLAGS0_TYPE_WRITE_READ, NULL); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1112 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1113 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1114 | ret = PTR_ERR(req); |
| 1115 | goto out; |
| 1116 | } |
| 1117 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1118 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame] | 1119 | |
| 1120 | zfcp_qdio_sbal_limit(qdio, &req->qdio_req, 2); |
| 1121 | |
| 1122 | ret = zfcp_fsf_setup_ct_els(req, els->req, els->resp, timeout); |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 1123 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1124 | if (ret) |
| 1125 | goto failed_send; |
| 1126 | |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame] | 1127 | hton24(req->qtcb->bottom.support.d_id, d_id); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1128 | req->handler = zfcp_fsf_send_els_handler; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1129 | req->data = els; |
| 1130 | |
Swen Schillig | 2c55b75 | 2010-12-02 15:16:13 +0100 | [diff] [blame] | 1131 | zfcp_dbf_san_req("fssels1", req, d_id); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1132 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1133 | ret = zfcp_fsf_req_send(req); |
| 1134 | if (ret) |
| 1135 | goto failed_send; |
| 1136 | |
| 1137 | goto out; |
| 1138 | |
| 1139 | failed_send: |
| 1140 | zfcp_fsf_req_free(req); |
| 1141 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1142 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1143 | return ret; |
| 1144 | } |
| 1145 | |
| 1146 | int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action) |
| 1147 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1148 | struct zfcp_fsf_req *req; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1149 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1150 | int retval = -EIO; |
| 1151 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1152 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1153 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1154 | goto out; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1155 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1156 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1157 | SBAL_FLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1158 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1159 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1160 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1161 | retval = PTR_ERR(req); |
| 1162 | goto out; |
| 1163 | } |
| 1164 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1165 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1166 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1167 | |
| 1168 | req->qtcb->bottom.config.feature_selection = |
| 1169 | FSF_FEATURE_CFDC | |
| 1170 | FSF_FEATURE_LUN_SHARING | |
| 1171 | FSF_FEATURE_NOTIFICATION_LOST | |
| 1172 | FSF_FEATURE_UPDATE_ALERT; |
| 1173 | req->erp_action = erp_action; |
| 1174 | req->handler = zfcp_fsf_exchange_config_data_handler; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1175 | erp_action->fsf_req_id = req->req_id; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1176 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1177 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1178 | retval = zfcp_fsf_req_send(req); |
| 1179 | if (retval) { |
| 1180 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1181 | erp_action->fsf_req_id = 0; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1182 | } |
| 1183 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1184 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1185 | return retval; |
| 1186 | } |
| 1187 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1188 | int zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *qdio, |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1189 | struct fsf_qtcb_bottom_config *data) |
| 1190 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1191 | struct zfcp_fsf_req *req = NULL; |
| 1192 | int retval = -EIO; |
| 1193 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1194 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1195 | if (zfcp_qdio_sbal_get(qdio)) |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1196 | goto out_unlock; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1197 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1198 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, |
| 1199 | SBAL_FLAGS0_TYPE_READ, NULL); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1200 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1201 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1202 | retval = PTR_ERR(req); |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1203 | goto out_unlock; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1204 | } |
| 1205 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1206 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1207 | req->handler = zfcp_fsf_exchange_config_data_handler; |
| 1208 | |
| 1209 | req->qtcb->bottom.config.feature_selection = |
| 1210 | FSF_FEATURE_CFDC | |
| 1211 | FSF_FEATURE_LUN_SHARING | |
| 1212 | FSF_FEATURE_NOTIFICATION_LOST | |
| 1213 | FSF_FEATURE_UPDATE_ALERT; |
| 1214 | |
| 1215 | if (data) |
| 1216 | req->data = data; |
| 1217 | |
| 1218 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
| 1219 | retval = zfcp_fsf_req_send(req); |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1220 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1221 | if (!retval) |
Swen Schillig | 058b864 | 2009-08-18 15:43:14 +0200 | [diff] [blame] | 1222 | wait_for_completion(&req->completion); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1223 | |
| 1224 | zfcp_fsf_req_free(req); |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1225 | return retval; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1226 | |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1227 | out_unlock: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1228 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1229 | return retval; |
| 1230 | } |
| 1231 | |
| 1232 | /** |
| 1233 | * zfcp_fsf_exchange_port_data - request information about local port |
| 1234 | * @erp_action: ERP action for the adapter for which port data is requested |
| 1235 | * Returns: 0 on success, error otherwise |
| 1236 | */ |
| 1237 | int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action) |
| 1238 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1239 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1240 | struct zfcp_fsf_req *req; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1241 | int retval = -EIO; |
| 1242 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1243 | if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1244 | return -EOPNOTSUPP; |
| 1245 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1246 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1247 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1248 | goto out; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1249 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1250 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1251 | SBAL_FLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1252 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1253 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1254 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1255 | retval = PTR_ERR(req); |
| 1256 | goto out; |
| 1257 | } |
| 1258 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1259 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1260 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1261 | |
| 1262 | req->handler = zfcp_fsf_exchange_port_data_handler; |
| 1263 | req->erp_action = erp_action; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1264 | erp_action->fsf_req_id = req->req_id; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1265 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1266 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1267 | retval = zfcp_fsf_req_send(req); |
| 1268 | if (retval) { |
| 1269 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1270 | erp_action->fsf_req_id = 0; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1271 | } |
| 1272 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1273 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1274 | return retval; |
| 1275 | } |
| 1276 | |
| 1277 | /** |
| 1278 | * zfcp_fsf_exchange_port_data_sync - request information about local port |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1279 | * @qdio: pointer to struct zfcp_qdio |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1280 | * @data: pointer to struct fsf_qtcb_bottom_port |
| 1281 | * Returns: 0 on success, error otherwise |
| 1282 | */ |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1283 | int zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *qdio, |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1284 | struct fsf_qtcb_bottom_port *data) |
| 1285 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1286 | struct zfcp_fsf_req *req = NULL; |
| 1287 | int retval = -EIO; |
| 1288 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1289 | if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1290 | return -EOPNOTSUPP; |
| 1291 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1292 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1293 | if (zfcp_qdio_sbal_get(qdio)) |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1294 | goto out_unlock; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1295 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1296 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, |
| 1297 | SBAL_FLAGS0_TYPE_READ, NULL); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1298 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1299 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1300 | retval = PTR_ERR(req); |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1301 | goto out_unlock; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1302 | } |
| 1303 | |
| 1304 | if (data) |
| 1305 | req->data = data; |
| 1306 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1307 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1308 | |
| 1309 | req->handler = zfcp_fsf_exchange_port_data_handler; |
| 1310 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
| 1311 | retval = zfcp_fsf_req_send(req); |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1312 | spin_unlock_irq(&qdio->req_q_lock); |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1313 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1314 | if (!retval) |
Swen Schillig | 058b864 | 2009-08-18 15:43:14 +0200 | [diff] [blame] | 1315 | wait_for_completion(&req->completion); |
| 1316 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1317 | zfcp_fsf_req_free(req); |
| 1318 | |
| 1319 | return retval; |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1320 | |
| 1321 | out_unlock: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1322 | spin_unlock_irq(&qdio->req_q_lock); |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1323 | return retval; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1324 | } |
| 1325 | |
| 1326 | static void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req) |
| 1327 | { |
| 1328 | struct zfcp_port *port = req->data; |
| 1329 | struct fsf_qtcb_header *header = &req->qtcb->header; |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 1330 | struct fc_els_flogi *plogi; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1331 | |
| 1332 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Martin Petermann | a17c585 | 2009-05-15 13:18:19 +0200 | [diff] [blame] | 1333 | goto out; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1334 | |
| 1335 | switch (header->fsf_status) { |
| 1336 | case FSF_PORT_ALREADY_OPEN: |
| 1337 | break; |
| 1338 | case FSF_ACCESS_DENIED: |
Christof Schmitt | a1ca483 | 2010-09-08 14:39:59 +0200 | [diff] [blame] | 1339 | zfcp_cfdc_port_denied(port, &header->fsf_status_qual); |
| 1340 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1341 | break; |
| 1342 | case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: |
| 1343 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 1344 | "Not enough FCP adapter resources to open " |
Swen Schillig | 7ba58c9 | 2008-10-01 12:42:18 +0200 | [diff] [blame] | 1345 | "remote port 0x%016Lx\n", |
| 1346 | (unsigned long long)port->wwpn); |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 1347 | zfcp_erp_set_port_status(port, |
| 1348 | ZFCP_STATUS_COMMON_ERP_FAILED); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1349 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1350 | break; |
| 1351 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 1352 | switch (header->fsf_status_qual.word[0]) { |
| 1353 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
| 1354 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1355 | case FSF_SQ_NO_RETRY_POSSIBLE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1356 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1357 | break; |
| 1358 | } |
| 1359 | break; |
| 1360 | case FSF_GOOD: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1361 | port->handle = header->port_handle; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1362 | atomic_set_mask(ZFCP_STATUS_COMMON_OPEN | |
| 1363 | ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); |
Andreas Herrmann | d736a27b | 2005-06-13 13:23:57 +0200 | [diff] [blame] | 1364 | atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | |
| 1365 | ZFCP_STATUS_COMMON_ACCESS_BOXED, |
| 1366 | &port->status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1367 | /* check whether D_ID has changed during open */ |
| 1368 | /* |
| 1369 | * FIXME: This check is not airtight, as the FCP channel does |
| 1370 | * not monitor closures of target port connections caused on |
| 1371 | * the remote side. Thus, they might miss out on invalidating |
| 1372 | * locally cached WWPNs (and other N_Port parameters) of gone |
| 1373 | * target ports. So, our heroic attempt to make things safe |
| 1374 | * could be undermined by 'open port' response data tagged with |
| 1375 | * obsolete WWPNs. Another reason to monitor potential |
| 1376 | * connection closures ourself at least (by interpreting |
| 1377 | * incoming ELS' and unsolicited status). It just crosses my |
| 1378 | * mind that one should be able to cross-check by means of |
| 1379 | * another GID_PN straight after a port has been opened. |
| 1380 | * Alternately, an ADISC/PDISC ELS should suffice, as well. |
| 1381 | */ |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 1382 | plogi = (struct fc_els_flogi *) req->qtcb->bottom.support.els; |
Christof Schmitt | 39eb7e9a | 2008-12-19 16:57:01 +0100 | [diff] [blame] | 1383 | if (req->qtcb->bottom.support.els1_length >= |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 1384 | FSF_PLOGI_MIN_LEN) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1385 | zfcp_fc_plogi_evaluate(port, plogi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1386 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1387 | case FSF_UNKNOWN_OP_SUBTYPE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1388 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1389 | break; |
| 1390 | } |
Martin Petermann | a17c585 | 2009-05-15 13:18:19 +0200 | [diff] [blame] | 1391 | |
| 1392 | out: |
Christof Schmitt | 615f59e | 2010-02-17 11:18:56 +0100 | [diff] [blame] | 1393 | put_device(&port->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1394 | } |
| 1395 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1396 | /** |
| 1397 | * zfcp_fsf_open_port - create and send open port request |
| 1398 | * @erp_action: pointer to struct zfcp_erp_action |
| 1399 | * Returns: 0 on success, error otherwise |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1400 | */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1401 | int zfcp_fsf_open_port(struct zfcp_erp_action *erp_action) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1402 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1403 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Martin Petermann | a17c585 | 2009-05-15 13:18:19 +0200 | [diff] [blame] | 1404 | struct zfcp_port *port = erp_action->port; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1405 | struct zfcp_fsf_req *req; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1406 | int retval = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1407 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1408 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1409 | if (zfcp_qdio_sbal_get(qdio)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1410 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1411 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1412 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1413 | SBAL_FLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1414 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1415 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1416 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1417 | retval = PTR_ERR(req); |
| 1418 | goto out; |
| 1419 | } |
| 1420 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1421 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1422 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1423 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1424 | req->handler = zfcp_fsf_open_port_handler; |
Christof Schmitt | 800c0ca | 2009-11-24 16:54:12 +0100 | [diff] [blame] | 1425 | hton24(req->qtcb->bottom.support.d_id, port->d_id); |
Martin Petermann | a17c585 | 2009-05-15 13:18:19 +0200 | [diff] [blame] | 1426 | req->data = port; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1427 | req->erp_action = erp_action; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1428 | erp_action->fsf_req_id = req->req_id; |
Christof Schmitt | 615f59e | 2010-02-17 11:18:56 +0100 | [diff] [blame] | 1429 | get_device(&port->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1430 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1431 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1432 | retval = zfcp_fsf_req_send(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1433 | if (retval) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1434 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1435 | erp_action->fsf_req_id = 0; |
Christof Schmitt | 615f59e | 2010-02-17 11:18:56 +0100 | [diff] [blame] | 1436 | put_device(&port->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1437 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1438 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1439 | spin_unlock_irq(&qdio->req_q_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1440 | return retval; |
| 1441 | } |
| 1442 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1443 | static void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1444 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1445 | struct zfcp_port *port = req->data; |
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 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 1448 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1449 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1450 | switch (req->qtcb->header.fsf_status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1451 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 1452 | zfcp_erp_adapter_reopen(port->adapter, 0, "fscph_1"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1453 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1454 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1455 | case FSF_ADAPTER_STATUS_AVAILABLE: |
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_GOOD: |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 1458 | zfcp_erp_clear_port_status(port, ZFCP_STATUS_COMMON_OPEN); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1459 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1460 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1461 | } |
| 1462 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1463 | /** |
| 1464 | * zfcp_fsf_close_port - create and send close port request |
| 1465 | * @erp_action: pointer to struct zfcp_erp_action |
| 1466 | * Returns: 0 on success, error otherwise |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1467 | */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1468 | int zfcp_fsf_close_port(struct zfcp_erp_action *erp_action) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1469 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1470 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1471 | struct zfcp_fsf_req *req; |
| 1472 | int retval = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1473 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1474 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1475 | if (zfcp_qdio_sbal_get(qdio)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1476 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1477 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1478 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1479 | SBAL_FLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1480 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1481 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1482 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1483 | retval = PTR_ERR(req); |
| 1484 | goto out; |
| 1485 | } |
| 1486 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1487 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1488 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1489 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1490 | req->handler = zfcp_fsf_close_port_handler; |
| 1491 | req->data = erp_action->port; |
| 1492 | req->erp_action = erp_action; |
| 1493 | req->qtcb->header.port_handle = erp_action->port->handle; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1494 | erp_action->fsf_req_id = req->req_id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1495 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1496 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1497 | retval = zfcp_fsf_req_send(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1498 | if (retval) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1499 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1500 | erp_action->fsf_req_id = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1501 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1502 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1503 | spin_unlock_irq(&qdio->req_q_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1504 | return retval; |
| 1505 | } |
| 1506 | |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1507 | static void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req) |
| 1508 | { |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1509 | struct zfcp_fc_wka_port *wka_port = req->data; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1510 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 1511 | |
| 1512 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) { |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1513 | wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1514 | goto out; |
| 1515 | } |
| 1516 | |
| 1517 | switch (header->fsf_status) { |
| 1518 | case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: |
| 1519 | dev_warn(&req->adapter->ccw_device->dev, |
| 1520 | "Opening WKA port 0x%x failed\n", wka_port->d_id); |
Christof Schmitt | dceab65 | 2009-05-15 13:18:18 +0200 | [diff] [blame] | 1521 | /* fall through */ |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1522 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 1523 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Christof Schmitt | dceab65 | 2009-05-15 13:18:18 +0200 | [diff] [blame] | 1524 | /* fall through */ |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1525 | case FSF_ACCESS_DENIED: |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1526 | wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1527 | break; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1528 | case FSF_GOOD: |
| 1529 | wka_port->handle = header->port_handle; |
Swen Schillig | 27f492c | 2009-07-13 15:06:13 +0200 | [diff] [blame] | 1530 | /* fall through */ |
| 1531 | case FSF_PORT_ALREADY_OPEN: |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1532 | wka_port->status = ZFCP_FC_WKA_PORT_ONLINE; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1533 | } |
| 1534 | out: |
| 1535 | wake_up(&wka_port->completion_wq); |
| 1536 | } |
| 1537 | |
| 1538 | /** |
| 1539 | * zfcp_fsf_open_wka_port - create and send open wka-port request |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1540 | * @wka_port: pointer to struct zfcp_fc_wka_port |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1541 | * Returns: 0 on success, error otherwise |
| 1542 | */ |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1543 | 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] | 1544 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1545 | struct zfcp_qdio *qdio = wka_port->adapter->qdio; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1546 | struct zfcp_fsf_req *req; |
| 1547 | int retval = -EIO; |
| 1548 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1549 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1550 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1551 | goto out; |
| 1552 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1553 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1554 | SBAL_FLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1555 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1556 | |
Tobias Klauser | 4e7d7af | 2011-02-22 19:54:38 +0100 | [diff] [blame] | 1557 | if (IS_ERR(req)) { |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1558 | retval = PTR_ERR(req); |
| 1559 | goto out; |
| 1560 | } |
| 1561 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1562 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1563 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1564 | |
| 1565 | req->handler = zfcp_fsf_open_wka_port_handler; |
Christof Schmitt | 800c0ca | 2009-11-24 16:54:12 +0100 | [diff] [blame] | 1566 | hton24(req->qtcb->bottom.support.d_id, wka_port->d_id); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1567 | req->data = wka_port; |
| 1568 | |
| 1569 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
| 1570 | retval = zfcp_fsf_req_send(req); |
| 1571 | if (retval) |
| 1572 | zfcp_fsf_req_free(req); |
| 1573 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1574 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1575 | return retval; |
| 1576 | } |
| 1577 | |
| 1578 | static void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req) |
| 1579 | { |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1580 | struct zfcp_fc_wka_port *wka_port = req->data; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1581 | |
| 1582 | if (req->qtcb->header.fsf_status == FSF_PORT_HANDLE_NOT_VALID) { |
| 1583 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 1584 | zfcp_erp_adapter_reopen(wka_port->adapter, 0, "fscwph1"); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1585 | } |
| 1586 | |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1587 | wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1588 | wake_up(&wka_port->completion_wq); |
| 1589 | } |
| 1590 | |
| 1591 | /** |
| 1592 | * zfcp_fsf_close_wka_port - create and send close wka port request |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1593 | * @wka_port: WKA port to open |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1594 | * Returns: 0 on success, error otherwise |
| 1595 | */ |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1596 | 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] | 1597 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1598 | struct zfcp_qdio *qdio = wka_port->adapter->qdio; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1599 | struct zfcp_fsf_req *req; |
| 1600 | int retval = -EIO; |
| 1601 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1602 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1603 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1604 | goto out; |
| 1605 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1606 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1607 | SBAL_FLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1608 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1609 | |
Tobias Klauser | 4e7d7af | 2011-02-22 19:54:38 +0100 | [diff] [blame] | 1610 | if (IS_ERR(req)) { |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1611 | retval = PTR_ERR(req); |
| 1612 | goto out; |
| 1613 | } |
| 1614 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1615 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1616 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1617 | |
| 1618 | req->handler = zfcp_fsf_close_wka_port_handler; |
| 1619 | req->data = wka_port; |
| 1620 | req->qtcb->header.port_handle = wka_port->handle; |
| 1621 | |
| 1622 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
| 1623 | retval = zfcp_fsf_req_send(req); |
| 1624 | if (retval) |
| 1625 | zfcp_fsf_req_free(req); |
| 1626 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1627 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1628 | return retval; |
| 1629 | } |
| 1630 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1631 | 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] | 1632 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1633 | struct zfcp_port *port = req->data; |
| 1634 | struct fsf_qtcb_header *header = &req->qtcb->header; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1635 | struct scsi_device *sdev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1636 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1637 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Christof Schmitt | a5b11dd | 2009-03-02 13:08:54 +0100 | [diff] [blame] | 1638 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1639 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1640 | switch (header->fsf_status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1641 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 1642 | zfcp_erp_adapter_reopen(port->adapter, 0, "fscpph1"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1643 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1644 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1645 | case FSF_ACCESS_DENIED: |
Christof Schmitt | a1ca483 | 2010-09-08 14:39:59 +0200 | [diff] [blame] | 1646 | zfcp_cfdc_port_denied(port, &header->fsf_status_qual); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1647 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1648 | case FSF_PORT_BOXED: |
Christof Schmitt | 5c815d1 | 2008-03-10 16:18:54 +0100 | [diff] [blame] | 1649 | /* can't use generic zfcp_erp_modify_port_status because |
| 1650 | * ZFCP_STATUS_COMMON_OPEN must not be reset for the port */ |
| 1651 | atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1652 | shost_for_each_device(sdev, port->adapter->scsi_host) |
| 1653 | if (sdev_to_zfcp(sdev)->port == port) |
| 1654 | atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, |
| 1655 | &sdev_to_zfcp(sdev)->status); |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 1656 | zfcp_erp_set_port_status(port, ZFCP_STATUS_COMMON_ACCESS_BOXED); |
| 1657 | zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 1658 | "fscpph2"); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 1659 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1660 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1661 | case FSF_ADAPTER_STATUS_AVAILABLE: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1662 | switch (header->fsf_status_qual.word[0]) { |
| 1663 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1664 | /* fall through */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1665 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1666 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1667 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1668 | } |
| 1669 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1670 | case FSF_GOOD: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1671 | /* can't use generic zfcp_erp_modify_port_status because |
| 1672 | * ZFCP_STATUS_COMMON_OPEN must not be reset for the port |
| 1673 | */ |
| 1674 | atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1675 | shost_for_each_device(sdev, port->adapter->scsi_host) |
| 1676 | if (sdev_to_zfcp(sdev)->port == port) |
| 1677 | atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, |
| 1678 | &sdev_to_zfcp(sdev)->status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1679 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1680 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1681 | } |
| 1682 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1683 | /** |
| 1684 | * zfcp_fsf_close_physical_port - close physical port |
| 1685 | * @erp_action: pointer to struct zfcp_erp_action |
| 1686 | * Returns: 0 on success |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1687 | */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1688 | int zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1689 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1690 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1691 | struct zfcp_fsf_req *req; |
| 1692 | int retval = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1693 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1694 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1695 | if (zfcp_qdio_sbal_get(qdio)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1696 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1697 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1698 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PHYSICAL_PORT, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1699 | SBAL_FLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1700 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1701 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1702 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1703 | retval = PTR_ERR(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1704 | goto out; |
| 1705 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1706 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1707 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1708 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1709 | |
| 1710 | req->data = erp_action->port; |
| 1711 | req->qtcb->header.port_handle = erp_action->port->handle; |
| 1712 | req->erp_action = erp_action; |
| 1713 | req->handler = zfcp_fsf_close_physical_port_handler; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1714 | erp_action->fsf_req_id = req->req_id; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1715 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1716 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1717 | retval = zfcp_fsf_req_send(req); |
| 1718 | if (retval) { |
| 1719 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1720 | erp_action->fsf_req_id = 0; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1721 | } |
| 1722 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1723 | spin_unlock_irq(&qdio->req_q_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1724 | return retval; |
| 1725 | } |
| 1726 | |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1727 | static void zfcp_fsf_open_lun_handler(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1728 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1729 | struct zfcp_adapter *adapter = req->adapter; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1730 | struct scsi_device *sdev = req->data; |
| 1731 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1732 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 1733 | struct fsf_qtcb_bottom_support *bottom = &req->qtcb->bottom.support; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1734 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1735 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 1736 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1737 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1738 | atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | |
Heiko Carstens | b64ddf9 | 2007-05-08 11:19:57 +0200 | [diff] [blame] | 1739 | ZFCP_STATUS_COMMON_ACCESS_BOXED | |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1740 | ZFCP_STATUS_LUN_SHARED | |
| 1741 | ZFCP_STATUS_LUN_READONLY, |
| 1742 | &zfcp_sdev->status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1743 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1744 | switch (header->fsf_status) { |
| 1745 | |
| 1746 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 1747 | zfcp_erp_adapter_reopen(adapter, 0, "fsouh_1"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1748 | /* fall through */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1749 | case FSF_LUN_ALREADY_OPEN: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1750 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1751 | case FSF_ACCESS_DENIED: |
Christof Schmitt | a1ca483 | 2010-09-08 14:39:59 +0200 | [diff] [blame] | 1752 | zfcp_cfdc_lun_denied(sdev, &header->fsf_status_qual); |
| 1753 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1754 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1755 | case FSF_PORT_BOXED: |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 1756 | zfcp_erp_set_port_status(zfcp_sdev->port, |
| 1757 | ZFCP_STATUS_COMMON_ACCESS_BOXED); |
| 1758 | zfcp_erp_port_reopen(zfcp_sdev->port, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 1759 | ZFCP_STATUS_COMMON_ERP_FAILED, "fsouh_2"); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 1760 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1761 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1762 | case FSF_LUN_SHARING_VIOLATION: |
Christof Schmitt | a1ca483 | 2010-09-08 14:39:59 +0200 | [diff] [blame] | 1763 | zfcp_cfdc_lun_shrng_vltn(sdev, &header->fsf_status_qual); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1764 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1765 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1766 | case FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1767 | dev_warn(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 1768 | "No handle is available for LUN " |
| 1769 | "0x%016Lx on port 0x%016Lx\n", |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1770 | (unsigned long long)zfcp_scsi_dev_lun(sdev), |
| 1771 | (unsigned long long)zfcp_sdev->port->wwpn); |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 1772 | zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_ERP_FAILED); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1773 | /* fall through */ |
| 1774 | case FSF_INVALID_COMMAND_OPTION: |
| 1775 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1776 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1777 | case FSF_ADAPTER_STATUS_AVAILABLE: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1778 | switch (header->fsf_status_qual.word[0]) { |
| 1779 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1780 | zfcp_fc_test_link(zfcp_sdev->port); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1781 | /* fall through */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1782 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1783 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1784 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1785 | } |
| 1786 | break; |
| 1787 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1788 | case FSF_GOOD: |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1789 | zfcp_sdev->lun_handle = header->lun_handle; |
| 1790 | atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &zfcp_sdev->status); |
Christof Schmitt | a1ca483 | 2010-09-08 14:39:59 +0200 | [diff] [blame] | 1791 | zfcp_cfdc_open_lun_eval(sdev, bottom); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1792 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1793 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1794 | } |
| 1795 | |
| 1796 | /** |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1797 | * zfcp_fsf_open_lun - open LUN |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1798 | * @erp_action: pointer to struct zfcp_erp_action |
| 1799 | * Returns: 0 on success, error otherwise |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1800 | */ |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1801 | int zfcp_fsf_open_lun(struct zfcp_erp_action *erp_action) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1802 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1803 | struct zfcp_adapter *adapter = erp_action->adapter; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1804 | struct zfcp_qdio *qdio = adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1805 | struct zfcp_fsf_req *req; |
| 1806 | int retval = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1807 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1808 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1809 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1810 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1811 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1812 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_LUN, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1813 | SBAL_FLAGS0_TYPE_READ, |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 1814 | adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1815 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1816 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1817 | retval = PTR_ERR(req); |
| 1818 | goto out; |
Christof Schmitt | ba17242 | 2007-12-20 12:30:26 +0100 | [diff] [blame] | 1819 | } |
| 1820 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1821 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1822 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1823 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1824 | req->qtcb->header.port_handle = erp_action->port->handle; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1825 | req->qtcb->bottom.support.fcp_lun = zfcp_scsi_dev_lun(erp_action->sdev); |
| 1826 | req->handler = zfcp_fsf_open_lun_handler; |
| 1827 | req->data = erp_action->sdev; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1828 | req->erp_action = erp_action; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1829 | erp_action->fsf_req_id = req->req_id; |
Andreas Herrmann | 059c97d | 2005-09-13 21:47:52 +0200 | [diff] [blame] | 1830 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1831 | if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE)) |
| 1832 | req->qtcb->bottom.support.option = FSF_OPEN_LUN_SUPPRESS_BOXING; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1833 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1834 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1835 | retval = zfcp_fsf_req_send(req); |
| 1836 | if (retval) { |
| 1837 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1838 | erp_action->fsf_req_id = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1839 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1840 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1841 | spin_unlock_irq(&qdio->req_q_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1842 | return retval; |
| 1843 | } |
| 1844 | |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1845 | static void zfcp_fsf_close_lun_handler(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1846 | { |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1847 | struct scsi_device *sdev = req->data; |
| 1848 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1849 | |
| 1850 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 1851 | return; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1852 | |
| 1853 | switch (req->qtcb->header.fsf_status) { |
| 1854 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 1855 | zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, "fscuh_1"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1856 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1857 | break; |
| 1858 | case FSF_LUN_HANDLE_NOT_VALID: |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 1859 | zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fscuh_2"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1860 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1861 | break; |
| 1862 | case FSF_PORT_BOXED: |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 1863 | zfcp_erp_set_port_status(zfcp_sdev->port, |
| 1864 | ZFCP_STATUS_COMMON_ACCESS_BOXED); |
| 1865 | zfcp_erp_port_reopen(zfcp_sdev->port, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 1866 | ZFCP_STATUS_COMMON_ERP_FAILED, "fscuh_3"); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 1867 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1868 | break; |
| 1869 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 1870 | switch (req->qtcb->header.fsf_status_qual.word[0]) { |
| 1871 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1872 | zfcp_fc_test_link(zfcp_sdev->port); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1873 | /* fall through */ |
| 1874 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
| 1875 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1876 | break; |
| 1877 | } |
| 1878 | break; |
| 1879 | case FSF_GOOD: |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1880 | atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, &zfcp_sdev->status); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1881 | break; |
| 1882 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1883 | } |
| 1884 | |
| 1885 | /** |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1886 | * zfcp_fsf_close_LUN - close LUN |
| 1887 | * @erp_action: pointer to erp_action triggering the "close LUN" |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1888 | * Returns: 0 on success, error otherwise |
| 1889 | */ |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1890 | int zfcp_fsf_close_lun(struct zfcp_erp_action *erp_action) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1891 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1892 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1893 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(erp_action->sdev); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1894 | struct zfcp_fsf_req *req; |
| 1895 | int retval = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1896 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1897 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 1898 | if (zfcp_qdio_sbal_get(qdio)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1899 | goto out; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1900 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1901 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_LUN, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1902 | SBAL_FLAGS0_TYPE_READ, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1903 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1904 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1905 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1906 | retval = PTR_ERR(req); |
| 1907 | goto out; |
| 1908 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1909 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1910 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 1911 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1912 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1913 | req->qtcb->header.port_handle = erp_action->port->handle; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1914 | req->qtcb->header.lun_handle = zfcp_sdev->lun_handle; |
| 1915 | req->handler = zfcp_fsf_close_lun_handler; |
| 1916 | req->data = erp_action->sdev; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1917 | req->erp_action = erp_action; |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1918 | erp_action->fsf_req_id = req->req_id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1919 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1920 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1921 | retval = zfcp_fsf_req_send(req); |
| 1922 | if (retval) { |
| 1923 | zfcp_fsf_req_free(req); |
Christof Schmitt | e60a6d6 | 2010-02-17 11:18:49 +0100 | [diff] [blame] | 1924 | erp_action->fsf_req_id = 0; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1925 | } |
| 1926 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 1927 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1928 | return retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1929 | } |
| 1930 | |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 1931 | static void zfcp_fsf_update_lat(struct fsf_latency_record *lat_rec, u32 lat) |
| 1932 | { |
| 1933 | lat_rec->sum += lat; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1934 | lat_rec->min = min(lat_rec->min, lat); |
| 1935 | lat_rec->max = max(lat_rec->max, lat); |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 1936 | } |
| 1937 | |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1938 | 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] | 1939 | { |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1940 | struct fsf_qual_latency_info *lat_in; |
| 1941 | struct latency_cont *lat = NULL; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1942 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(scsi->device); |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1943 | struct zfcp_blk_drv_data blktrc; |
| 1944 | int ticks = req->adapter->timer_ticks; |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 1945 | |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1946 | lat_in = &req->qtcb->prefix.prot_status_qual.latency_info; |
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 | blktrc.flags = 0; |
| 1949 | blktrc.magic = ZFCP_BLK_DRV_DATA_MAGIC; |
| 1950 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
| 1951 | blktrc.flags |= ZFCP_BLK_REQ_ERROR; |
Swen Schillig | 706eca4 | 2010-07-16 15:37:38 +0200 | [diff] [blame] | 1952 | blktrc.inb_usage = 0; |
Christof Schmitt | 34c2b71 | 2010-02-17 11:18:59 +0100 | [diff] [blame] | 1953 | blktrc.outb_usage = req->qdio_req.qdio_outb_usage; |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1954 | |
Christof Schmitt | 5bbf297 | 2010-04-01 13:04:08 +0200 | [diff] [blame] | 1955 | if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA && |
| 1956 | !(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1957 | blktrc.flags |= ZFCP_BLK_LAT_VALID; |
| 1958 | blktrc.channel_lat = lat_in->channel_lat * ticks; |
| 1959 | blktrc.fabric_lat = lat_in->fabric_lat * ticks; |
| 1960 | |
| 1961 | switch (req->qtcb->bottom.io.data_direction) { |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 1962 | case FSF_DATADIR_DIF_READ_STRIP: |
| 1963 | case FSF_DATADIR_DIF_READ_CONVERT: |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1964 | case FSF_DATADIR_READ: |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1965 | lat = &zfcp_sdev->latencies.read; |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1966 | break; |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 1967 | case FSF_DATADIR_DIF_WRITE_INSERT: |
| 1968 | case FSF_DATADIR_DIF_WRITE_CONVERT: |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1969 | case FSF_DATADIR_WRITE: |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1970 | lat = &zfcp_sdev->latencies.write; |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1971 | break; |
| 1972 | case FSF_DATADIR_CMND: |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1973 | lat = &zfcp_sdev->latencies.cmd; |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1974 | break; |
| 1975 | } |
| 1976 | |
| 1977 | if (lat) { |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1978 | spin_lock(&zfcp_sdev->latencies.lock); |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1979 | zfcp_fsf_update_lat(&lat->channel, lat_in->channel_lat); |
| 1980 | zfcp_fsf_update_lat(&lat->fabric, lat_in->fabric_lat); |
| 1981 | lat->counter++; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1982 | spin_unlock(&zfcp_sdev->latencies.lock); |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1983 | } |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 1984 | } |
| 1985 | |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 1986 | blk_add_driver_data(scsi->request->q, scsi->request, &blktrc, |
| 1987 | sizeof(blktrc)); |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 1988 | } |
| 1989 | |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 1990 | static void zfcp_fsf_fcp_handler_common(struct zfcp_fsf_req *req) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1991 | { |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 1992 | struct scsi_cmnd *scmnd = req->data; |
| 1993 | struct scsi_device *sdev = scmnd->device; |
| 1994 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1995 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 1996 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1997 | if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 1998 | return; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1999 | |
| 2000 | switch (header->fsf_status) { |
| 2001 | case FSF_HANDLE_MISMATCH: |
| 2002 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 2003 | zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, "fssfch1"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2004 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2005 | break; |
| 2006 | case FSF_FCPLUN_NOT_VALID: |
| 2007 | case FSF_LUN_HANDLE_NOT_VALID: |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 2008 | zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fssfch2"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2009 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2010 | break; |
| 2011 | case FSF_SERVICE_CLASS_NOT_SUPPORTED: |
| 2012 | zfcp_fsf_class_not_supp(req); |
| 2013 | break; |
| 2014 | case FSF_ACCESS_DENIED: |
Christof Schmitt | a1ca483 | 2010-09-08 14:39:59 +0200 | [diff] [blame] | 2015 | zfcp_cfdc_lun_denied(sdev, &header->fsf_status_qual); |
| 2016 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2017 | break; |
| 2018 | case FSF_DIRECTION_INDICATOR_NOT_VALID: |
| 2019 | dev_err(&req->adapter->ccw_device->dev, |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2020 | "Incorrect direction %d, LUN 0x%016Lx on port " |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 2021 | "0x%016Lx closed\n", |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2022 | req->qtcb->bottom.io.data_direction, |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2023 | (unsigned long long)zfcp_scsi_dev_lun(sdev), |
| 2024 | (unsigned long long)zfcp_sdev->port->wwpn); |
| 2025 | zfcp_erp_adapter_shutdown(zfcp_sdev->port->adapter, 0, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 2026 | "fssfch3"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2027 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2028 | break; |
| 2029 | case FSF_CMND_LENGTH_NOT_VALID: |
| 2030 | dev_err(&req->adapter->ccw_device->dev, |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2031 | "Incorrect CDB length %d, LUN 0x%016Lx on " |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 2032 | "port 0x%016Lx closed\n", |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2033 | req->qtcb->bottom.io.fcp_cmnd_length, |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2034 | (unsigned long long)zfcp_scsi_dev_lun(sdev), |
| 2035 | (unsigned long long)zfcp_sdev->port->wwpn); |
| 2036 | zfcp_erp_adapter_shutdown(zfcp_sdev->port->adapter, 0, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 2037 | "fssfch4"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2038 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2039 | break; |
| 2040 | case FSF_PORT_BOXED: |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 2041 | zfcp_erp_set_port_status(zfcp_sdev->port, |
| 2042 | ZFCP_STATUS_COMMON_ACCESS_BOXED); |
| 2043 | zfcp_erp_port_reopen(zfcp_sdev->port, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 2044 | ZFCP_STATUS_COMMON_ERP_FAILED, "fssfch5"); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 2045 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2046 | break; |
| 2047 | case FSF_LUN_BOXED: |
Swen Schillig | edaed85 | 2010-09-08 14:40:01 +0200 | [diff] [blame] | 2048 | zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_ACCESS_BOXED); |
| 2049 | zfcp_erp_lun_reopen(sdev, ZFCP_STATUS_COMMON_ERP_FAILED, |
Swen Schillig | ea4a3a6 | 2010-12-02 15:16:16 +0100 | [diff] [blame] | 2050 | "fssfch6"); |
Christof Schmitt | 4c571c6 | 2009-11-24 16:54:15 +0100 | [diff] [blame] | 2051 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2052 | break; |
| 2053 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 2054 | if (header->fsf_status_qual.word[0] == |
| 2055 | FSF_SQ_INVOKE_LINK_TEST_PROCEDURE) |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2056 | zfcp_fc_test_link(zfcp_sdev->port); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2057 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2058 | break; |
| 2059 | } |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 2060 | } |
| 2061 | |
| 2062 | static void zfcp_fsf_fcp_cmnd_handler(struct zfcp_fsf_req *req) |
| 2063 | { |
| 2064 | struct scsi_cmnd *scpnt; |
| 2065 | struct fcp_resp_with_ext *fcp_rsp; |
| 2066 | unsigned long flags; |
| 2067 | |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 2068 | read_lock_irqsave(&req->adapter->abort_lock, flags); |
| 2069 | |
| 2070 | scpnt = req->data; |
| 2071 | if (unlikely(!scpnt)) { |
| 2072 | read_unlock_irqrestore(&req->adapter->abort_lock, flags); |
| 2073 | return; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2074 | } |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 2075 | |
Swen Schillig | 5bfb2c3 | 2010-11-17 14:23:40 +0100 | [diff] [blame] | 2076 | zfcp_fsf_fcp_handler_common(req); |
| 2077 | |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 2078 | if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { |
| 2079 | set_host_byte(scpnt, DID_TRANSPORT_DISRUPTED); |
| 2080 | goto skip_fsfstatus; |
| 2081 | } |
| 2082 | |
| 2083 | switch (req->qtcb->header.fsf_status) { |
| 2084 | case FSF_INCONSISTENT_PROT_DATA: |
| 2085 | case FSF_INVALID_PROT_PARM: |
| 2086 | set_host_byte(scpnt, DID_ERROR); |
| 2087 | goto skip_fsfstatus; |
| 2088 | case FSF_BLOCK_GUARD_CHECK_FAILURE: |
| 2089 | zfcp_scsi_dif_sense_error(scpnt, 0x1); |
| 2090 | goto skip_fsfstatus; |
| 2091 | case FSF_APP_TAG_CHECK_FAILURE: |
| 2092 | zfcp_scsi_dif_sense_error(scpnt, 0x2); |
| 2093 | goto skip_fsfstatus; |
| 2094 | case FSF_REF_TAG_CHECK_FAILURE: |
| 2095 | zfcp_scsi_dif_sense_error(scpnt, 0x3); |
| 2096 | goto skip_fsfstatus; |
| 2097 | } |
| 2098 | fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; |
| 2099 | zfcp_fc_eval_fcp_rsp(fcp_rsp, scpnt); |
| 2100 | |
| 2101 | skip_fsfstatus: |
| 2102 | zfcp_fsf_req_trace(req, scpnt); |
Swen Schillig | 250a135 | 2010-12-02 15:16:15 +0100 | [diff] [blame] | 2103 | zfcp_dbf_scsi_result(scpnt, req); |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 2104 | |
| 2105 | scpnt->host_scribble = NULL; |
| 2106 | (scpnt->scsi_done) (scpnt); |
| 2107 | /* |
| 2108 | * We must hold this lock until scsi_done has been called. |
| 2109 | * Otherwise we may call scsi_done after abort regarding this |
| 2110 | * command has completed. |
| 2111 | * Note: scsi_done must not block! |
| 2112 | */ |
| 2113 | read_unlock_irqrestore(&req->adapter->abort_lock, flags); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2114 | } |
| 2115 | |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2116 | static int zfcp_fsf_set_data_dir(struct scsi_cmnd *scsi_cmnd, u32 *data_dir) |
| 2117 | { |
| 2118 | switch (scsi_get_prot_op(scsi_cmnd)) { |
| 2119 | case SCSI_PROT_NORMAL: |
| 2120 | switch (scsi_cmnd->sc_data_direction) { |
| 2121 | case DMA_NONE: |
| 2122 | *data_dir = FSF_DATADIR_CMND; |
| 2123 | break; |
| 2124 | case DMA_FROM_DEVICE: |
| 2125 | *data_dir = FSF_DATADIR_READ; |
| 2126 | break; |
| 2127 | case DMA_TO_DEVICE: |
| 2128 | *data_dir = FSF_DATADIR_WRITE; |
| 2129 | break; |
| 2130 | case DMA_BIDIRECTIONAL: |
| 2131 | return -EINVAL; |
| 2132 | } |
| 2133 | break; |
| 2134 | |
| 2135 | case SCSI_PROT_READ_STRIP: |
| 2136 | *data_dir = FSF_DATADIR_DIF_READ_STRIP; |
| 2137 | break; |
| 2138 | case SCSI_PROT_WRITE_INSERT: |
| 2139 | *data_dir = FSF_DATADIR_DIF_WRITE_INSERT; |
| 2140 | break; |
| 2141 | case SCSI_PROT_READ_PASS: |
| 2142 | *data_dir = FSF_DATADIR_DIF_READ_CONVERT; |
| 2143 | break; |
| 2144 | case SCSI_PROT_WRITE_PASS: |
| 2145 | *data_dir = FSF_DATADIR_DIF_WRITE_CONVERT; |
| 2146 | break; |
| 2147 | default: |
| 2148 | return -EINVAL; |
| 2149 | } |
| 2150 | |
| 2151 | return 0; |
| 2152 | } |
| 2153 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2154 | /** |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2155 | * zfcp_fsf_fcp_cmnd - initiate an FCP command (for a SCSI command) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2156 | * @scsi_cmnd: scsi command to be sent |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2157 | */ |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2158 | int zfcp_fsf_fcp_cmnd(struct scsi_cmnd *scsi_cmnd) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2159 | { |
| 2160 | struct zfcp_fsf_req *req; |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2161 | struct fcp_cmnd *fcp_cmnd; |
Christof Schmitt | bc90c86 | 2009-05-15 13:18:17 +0200 | [diff] [blame] | 2162 | unsigned int sbtype = SBAL_FLAGS0_TYPE_READ; |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2163 | int real_bytes, retval = -EIO, dix_bytes = 0; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2164 | struct scsi_device *sdev = scsi_cmnd->device; |
| 2165 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); |
| 2166 | struct zfcp_adapter *adapter = zfcp_sdev->port->adapter; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2167 | struct zfcp_qdio *qdio = adapter->qdio; |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2168 | struct fsf_qtcb_bottom_io *io; |
Christof Schmitt | e55f875 | 2010-11-18 14:53:18 +0100 | [diff] [blame] | 2169 | unsigned long flags; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2170 | |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2171 | if (unlikely(!(atomic_read(&zfcp_sdev->status) & |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2172 | ZFCP_STATUS_COMMON_UNBLOCKED))) |
| 2173 | return -EBUSY; |
| 2174 | |
Christof Schmitt | e55f875 | 2010-11-18 14:53:18 +0100 | [diff] [blame] | 2175 | spin_lock_irqsave(&qdio->req_q_lock, flags); |
Swen Schillig | 706eca4 | 2010-07-16 15:37:38 +0200 | [diff] [blame] | 2176 | if (atomic_read(&qdio->req_q_free) <= 0) { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2177 | atomic_inc(&qdio->req_q_full); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2178 | goto out; |
Christof Schmitt | 8fdf30d | 2009-03-02 13:09:01 +0100 | [diff] [blame] | 2179 | } |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2180 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 2181 | if (scsi_cmnd->sc_data_direction == DMA_TO_DEVICE) |
| 2182 | sbtype = SBAL_FLAGS0_TYPE_WRITE; |
| 2183 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2184 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 2185 | sbtype, adapter->pool.scsi_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2186 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 2187 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2188 | retval = PTR_ERR(req); |
| 2189 | goto out; |
| 2190 | } |
| 2191 | |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2192 | scsi_cmnd->host_scribble = (unsigned char *) req->req_id; |
| 2193 | |
| 2194 | io = &req->qtcb->bottom.io; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2195 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2196 | req->data = scsi_cmnd; |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 2197 | req->handler = zfcp_fsf_fcp_cmnd_handler; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2198 | req->qtcb->header.lun_handle = zfcp_sdev->lun_handle; |
| 2199 | req->qtcb->header.port_handle = zfcp_sdev->port->handle; |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2200 | io->service_class = FSF_CLASS_3; |
| 2201 | io->fcp_cmnd_length = FCP_CMND_LEN; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2202 | |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2203 | if (scsi_get_prot_op(scsi_cmnd) != SCSI_PROT_NORMAL) { |
| 2204 | io->data_block_length = scsi_cmnd->device->sector_size; |
| 2205 | io->ref_tag_value = scsi_get_lba(scsi_cmnd) & 0xFFFFFFFF; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2206 | } |
| 2207 | |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2208 | zfcp_fsf_set_data_dir(scsi_cmnd, &io->data_direction); |
| 2209 | |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2210 | fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; |
| 2211 | zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2212 | |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2213 | if (scsi_prot_sg_count(scsi_cmnd)) { |
| 2214 | zfcp_qdio_set_data_div(qdio, &req->qdio_req, |
| 2215 | scsi_prot_sg_count(scsi_cmnd)); |
| 2216 | dix_bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, |
| 2217 | scsi_prot_sglist(scsi_cmnd)); |
| 2218 | io->prot_data_length = dix_bytes; |
| 2219 | } |
| 2220 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 2221 | real_bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame] | 2222 | scsi_sglist(scsi_cmnd)); |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2223 | |
| 2224 | if (unlikely(real_bytes < 0) || unlikely(dix_bytes < 0)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2225 | goto failed_scsi_cmnd; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2226 | |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2227 | zfcp_qdio_set_sbale_last(adapter->qdio, &req->qdio_req); |
| 2228 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2229 | retval = zfcp_fsf_req_send(req); |
| 2230 | if (unlikely(retval)) |
| 2231 | goto failed_scsi_cmnd; |
| 2232 | |
| 2233 | goto out; |
| 2234 | |
| 2235 | failed_scsi_cmnd: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2236 | zfcp_fsf_req_free(req); |
| 2237 | scsi_cmnd->host_scribble = NULL; |
| 2238 | out: |
Christof Schmitt | e55f875 | 2010-11-18 14:53:18 +0100 | [diff] [blame] | 2239 | spin_unlock_irqrestore(&qdio->req_q_lock, flags); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2240 | return retval; |
| 2241 | } |
| 2242 | |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 2243 | static void zfcp_fsf_fcp_task_mgmt_handler(struct zfcp_fsf_req *req) |
| 2244 | { |
| 2245 | struct fcp_resp_with_ext *fcp_rsp; |
| 2246 | struct fcp_resp_rsp_info *rsp_info; |
| 2247 | |
| 2248 | zfcp_fsf_fcp_handler_common(req); |
| 2249 | |
| 2250 | fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; |
| 2251 | rsp_info = (struct fcp_resp_rsp_info *) &fcp_rsp[1]; |
| 2252 | |
| 2253 | if ((rsp_info->rsp_code != FCP_TMF_CMPL) || |
| 2254 | (req->status & ZFCP_STATUS_FSFREQ_ERROR)) |
| 2255 | req->status |= ZFCP_STATUS_FSFREQ_TMFUNCFAILED; |
| 2256 | } |
| 2257 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2258 | /** |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2259 | * zfcp_fsf_fcp_task_mgmt - send SCSI task management command |
| 2260 | * @scmnd: SCSI command to send the task management command for |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2261 | * @tm_flags: unsigned byte for task management flags |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2262 | * Returns: on success pointer to struct fsf_req, NULL otherwise |
| 2263 | */ |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2264 | struct zfcp_fsf_req *zfcp_fsf_fcp_task_mgmt(struct scsi_cmnd *scmnd, |
| 2265 | u8 tm_flags) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2266 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2267 | struct zfcp_fsf_req *req = NULL; |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2268 | struct fcp_cmnd *fcp_cmnd; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2269 | struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(scmnd->device); |
| 2270 | struct zfcp_qdio *qdio = zfcp_sdev->port->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2271 | |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2272 | if (unlikely(!(atomic_read(&zfcp_sdev->status) & |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2273 | ZFCP_STATUS_COMMON_UNBLOCKED))) |
| 2274 | return NULL; |
| 2275 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 2276 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 2277 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2278 | goto out; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2279 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2280 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 2281 | SBAL_FLAGS0_TYPE_WRITE, |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2282 | qdio->adapter->pool.scsi_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2283 | |
Swen Schillig | 633528c | 2008-11-26 18:07:37 +0100 | [diff] [blame] | 2284 | if (IS_ERR(req)) { |
| 2285 | req = NULL; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2286 | goto out; |
Swen Schillig | 633528c | 2008-11-26 18:07:37 +0100 | [diff] [blame] | 2287 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2288 | |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2289 | req->data = scmnd; |
Christof Schmitt | c61b536 | 2010-09-08 14:39:58 +0200 | [diff] [blame] | 2290 | req->handler = zfcp_fsf_fcp_task_mgmt_handler; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2291 | req->qtcb->header.lun_handle = zfcp_sdev->lun_handle; |
| 2292 | req->qtcb->header.port_handle = zfcp_sdev->port->handle; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2293 | req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; |
| 2294 | req->qtcb->bottom.io.service_class = FSF_CLASS_3; |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2295 | req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2296 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 2297 | zfcp_qdio_set_sbale_last(qdio, &req->qdio_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2298 | |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2299 | fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; |
Christof Schmitt | b62a8d9 | 2010-09-08 14:39:55 +0200 | [diff] [blame] | 2300 | zfcp_fc_fcp_tm(fcp_cmnd, scmnd->device, tm_flags); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2301 | |
| 2302 | zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); |
| 2303 | if (!zfcp_fsf_req_send(req)) |
| 2304 | goto out; |
| 2305 | |
| 2306 | zfcp_fsf_req_free(req); |
| 2307 | req = NULL; |
| 2308 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 2309 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2310 | return req; |
| 2311 | } |
| 2312 | |
| 2313 | static void zfcp_fsf_control_file_handler(struct zfcp_fsf_req *req) |
| 2314 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2315 | } |
| 2316 | |
| 2317 | /** |
| 2318 | * zfcp_fsf_control_file - control file upload/download |
| 2319 | * @adapter: pointer to struct zfcp_adapter |
| 2320 | * @fsf_cfdc: pointer to struct zfcp_fsf_cfdc |
| 2321 | * Returns: on success pointer to struct zfcp_fsf_req, NULL otherwise |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2322 | */ |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2323 | struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter, |
| 2324 | struct zfcp_fsf_cfdc *fsf_cfdc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2325 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2326 | struct zfcp_qdio *qdio = adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2327 | struct zfcp_fsf_req *req = NULL; |
| 2328 | struct fsf_qtcb_bottom_support *bottom; |
| 2329 | int direction, retval = -EIO, bytes; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2330 | |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2331 | if (!(adapter->adapter_features & FSF_FEATURE_CFDC)) |
| 2332 | return ERR_PTR(-EOPNOTSUPP); |
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 | switch (fsf_cfdc->command) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2335 | case FSF_QTCB_DOWNLOAD_CONTROL_FILE: |
| 2336 | direction = SBAL_FLAGS0_TYPE_WRITE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2337 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2338 | case FSF_QTCB_UPLOAD_CONTROL_FILE: |
| 2339 | direction = SBAL_FLAGS0_TYPE_READ; |
| 2340 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2341 | default: |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2342 | return ERR_PTR(-EINVAL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2343 | } |
| 2344 | |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 2345 | spin_lock_irq(&qdio->req_q_lock); |
Christof Schmitt | 6b9e152 | 2010-04-30 18:09:35 +0200 | [diff] [blame] | 2346 | if (zfcp_qdio_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2347 | goto out; |
| 2348 | |
Christof Schmitt | 1674b40 | 2010-04-30 18:09:34 +0200 | [diff] [blame] | 2349 | req = zfcp_fsf_req_create(qdio, fsf_cfdc->command, direction, NULL); |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 2350 | if (IS_ERR(req)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2351 | retval = -EPERM; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2352 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2353 | } |
| 2354 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2355 | req->handler = zfcp_fsf_control_file_handler; |
| 2356 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2357 | bottom = &req->qtcb->bottom.support; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2358 | bottom->operation_subtype = FSF_CFDC_OPERATION_SUBTYPE; |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2359 | bottom->option = fsf_cfdc->option; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2360 | |
Swen Schillig | 01b0475 | 2010-07-16 15:37:37 +0200 | [diff] [blame] | 2361 | bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, fsf_cfdc->sg); |
| 2362 | |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2363 | if (bytes != ZFCP_CFDC_MAX_SIZE) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2364 | zfcp_fsf_req_free(req); |
| 2365 | goto out; |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2366 | } |
Felix Beck | ef3eb71 | 2010-07-16 15:37:42 +0200 | [diff] [blame] | 2367 | zfcp_qdio_set_sbale_last(adapter->qdio, &req->qdio_req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2368 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2369 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
| 2370 | retval = zfcp_fsf_req_send(req); |
| 2371 | out: |
Christof Schmitt | 44a24cb | 2010-09-08 14:39:57 +0200 | [diff] [blame] | 2372 | spin_unlock_irq(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2373 | |
| 2374 | if (!retval) { |
Swen Schillig | 058b864 | 2009-08-18 15:43:14 +0200 | [diff] [blame] | 2375 | wait_for_completion(&req->completion); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2376 | return req; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2377 | } |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2378 | return ERR_PTR(retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2379 | } |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2380 | |
| 2381 | /** |
| 2382 | * zfcp_fsf_reqid_check - validate req_id contained in SBAL returned by QDIO |
| 2383 | * @adapter: pointer to struct zfcp_adapter |
| 2384 | * @sbal_idx: response queue index of SBAL to be processed |
| 2385 | */ |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2386 | void zfcp_fsf_reqid_check(struct zfcp_qdio *qdio, int sbal_idx) |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2387 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2388 | struct zfcp_adapter *adapter = qdio->adapter; |
Swen Schillig | 706eca4 | 2010-07-16 15:37:38 +0200 | [diff] [blame] | 2389 | struct qdio_buffer *sbal = qdio->res_q[sbal_idx]; |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2390 | struct qdio_buffer_element *sbale; |
| 2391 | struct zfcp_fsf_req *fsf_req; |
Christof Schmitt | b6bd2fb | 2010-02-17 11:18:50 +0100 | [diff] [blame] | 2392 | unsigned long req_id; |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2393 | int idx; |
| 2394 | |
| 2395 | for (idx = 0; idx < QDIO_MAX_ELEMENTS_PER_BUFFER; idx++) { |
| 2396 | |
| 2397 | sbale = &sbal->element[idx]; |
| 2398 | req_id = (unsigned long) sbale->addr; |
Christof Schmitt | b6bd2fb | 2010-02-17 11:18:50 +0100 | [diff] [blame] | 2399 | fsf_req = zfcp_reqlist_find_rm(adapter->req_list, req_id); |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2400 | |
Christof Schmitt | 339f4f4 | 2010-07-16 15:37:43 +0200 | [diff] [blame] | 2401 | if (!fsf_req) { |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2402 | /* |
| 2403 | * Unknown request means that we have potentially memory |
| 2404 | * corruption and must stop the machine immediately. |
| 2405 | */ |
Christof Schmitt | 339f4f4 | 2010-07-16 15:37:43 +0200 | [diff] [blame] | 2406 | zfcp_qdio_siosl(adapter); |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2407 | panic("error: unknown req_id (%lx) on adapter %s.\n", |
| 2408 | req_id, dev_name(&adapter->ccw_device->dev)); |
Christof Schmitt | 339f4f4 | 2010-07-16 15:37:43 +0200 | [diff] [blame] | 2409 | } |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2410 | |
Christof Schmitt | 34c2b71 | 2010-02-17 11:18:59 +0100 | [diff] [blame] | 2411 | fsf_req->qdio_req.sbal_response = sbal_idx; |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2412 | zfcp_fsf_req_complete(fsf_req); |
| 2413 | |
| 2414 | if (likely(sbale->flags & SBAL_FLAGS_LAST_ENTRY)) |
| 2415 | break; |
| 2416 | } |
| 2417 | } |
Swen Schillig | a54ca0f | 2010-12-02 15:16:14 +0100 | [diff] [blame] | 2418 | |
| 2419 | struct zfcp_fsf_req *zfcp_fsf_get_req(struct zfcp_qdio *qdio, |
| 2420 | struct qdio_buffer *sbal) |
| 2421 | { |
| 2422 | struct qdio_buffer_element *sbale = &sbal->element[0]; |
| 2423 | u64 req_id = (unsigned long) sbale->addr; |
| 2424 | |
| 2425 | return zfcp_reqlist_find(qdio->adapter->req_list, req_id); |
| 2426 | } |