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 | a2fa0ae | 2009-03-02 13:09:08 +0100 | [diff] [blame] | 6 | * Copyright IBM Corporation 2002, 2009 |
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> |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 13 | #include <scsi/fc/fc_els.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 14 | #include "zfcp_ext.h" |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 15 | #include "zfcp_fc.h" |
Christof Schmitt | dcd20e2 | 2009-08-18 15:43:08 +0200 | [diff] [blame] | 16 | #include "zfcp_dbf.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 18 | static void zfcp_fsf_request_timeout_handler(unsigned long data) |
| 19 | { |
| 20 | struct zfcp_adapter *adapter = (struct zfcp_adapter *) data; |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 21 | zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, |
| 22 | "fsrth_1", NULL); |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 23 | } |
| 24 | |
| 25 | static void zfcp_fsf_start_timer(struct zfcp_fsf_req *fsf_req, |
| 26 | unsigned long timeout) |
| 27 | { |
| 28 | fsf_req->timer.function = zfcp_fsf_request_timeout_handler; |
| 29 | fsf_req->timer.data = (unsigned long) fsf_req->adapter; |
| 30 | fsf_req->timer.expires = jiffies + timeout; |
| 31 | add_timer(&fsf_req->timer); |
| 32 | } |
| 33 | |
| 34 | static void zfcp_fsf_start_erp_timer(struct zfcp_fsf_req *fsf_req) |
| 35 | { |
| 36 | BUG_ON(!fsf_req->erp_action); |
| 37 | fsf_req->timer.function = zfcp_erp_timeout_handler; |
| 38 | fsf_req->timer.data = (unsigned long) fsf_req->erp_action; |
| 39 | fsf_req->timer.expires = jiffies + 30 * HZ; |
| 40 | add_timer(&fsf_req->timer); |
| 41 | } |
| 42 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | /* association between FSF command and FSF QTCB type */ |
| 44 | static u32 fsf_qtcb_type[] = { |
| 45 | [FSF_QTCB_FCP_CMND] = FSF_IO_COMMAND, |
| 46 | [FSF_QTCB_ABORT_FCP_CMND] = FSF_SUPPORT_COMMAND, |
| 47 | [FSF_QTCB_OPEN_PORT_WITH_DID] = FSF_SUPPORT_COMMAND, |
| 48 | [FSF_QTCB_OPEN_LUN] = FSF_SUPPORT_COMMAND, |
| 49 | [FSF_QTCB_CLOSE_LUN] = FSF_SUPPORT_COMMAND, |
| 50 | [FSF_QTCB_CLOSE_PORT] = FSF_SUPPORT_COMMAND, |
| 51 | [FSF_QTCB_CLOSE_PHYSICAL_PORT] = FSF_SUPPORT_COMMAND, |
| 52 | [FSF_QTCB_SEND_ELS] = FSF_SUPPORT_COMMAND, |
| 53 | [FSF_QTCB_SEND_GENERIC] = FSF_SUPPORT_COMMAND, |
| 54 | [FSF_QTCB_EXCHANGE_CONFIG_DATA] = FSF_CONFIG_COMMAND, |
| 55 | [FSF_QTCB_EXCHANGE_PORT_DATA] = FSF_PORT_COMMAND, |
| 56 | [FSF_QTCB_DOWNLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND, |
| 57 | [FSF_QTCB_UPLOAD_CONTROL_FILE] = FSF_SUPPORT_COMMAND |
| 58 | }; |
| 59 | |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 60 | static void zfcp_act_eval_err(struct zfcp_adapter *adapter, u32 table) |
| 61 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 62 | u16 subtable = table >> 16; |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 63 | u16 rule = table & 0xffff; |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 64 | const char *act_type[] = { "unknown", "OS", "WWPN", "DID", "LUN" }; |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 65 | |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 66 | if (subtable && subtable < ARRAY_SIZE(act_type)) |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 67 | dev_warn(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 68 | "Access denied according to ACT rule type %s, " |
| 69 | "rule %d\n", act_type[subtable], rule); |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 70 | } |
| 71 | |
| 72 | static void zfcp_fsf_access_denied_port(struct zfcp_fsf_req *req, |
| 73 | struct zfcp_port *port) |
| 74 | { |
| 75 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 76 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 77 | "Access denied to port 0x%016Lx\n", |
Swen Schillig | 7ba58c9 | 2008-10-01 12:42:18 +0200 | [diff] [blame] | 78 | (unsigned long long)port->wwpn); |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 79 | zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]); |
| 80 | zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 81 | zfcp_erp_port_access_denied(port, "fspad_1", req); |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 82 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 83 | } |
| 84 | |
| 85 | static void zfcp_fsf_access_denied_unit(struct zfcp_fsf_req *req, |
| 86 | struct zfcp_unit *unit) |
| 87 | { |
| 88 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 89 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 90 | "Access denied to unit 0x%016Lx on port 0x%016Lx\n", |
Swen Schillig | 7ba58c9 | 2008-10-01 12:42:18 +0200 | [diff] [blame] | 91 | (unsigned long long)unit->fcp_lun, |
| 92 | (unsigned long long)unit->port->wwpn); |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 93 | zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]); |
| 94 | zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 95 | zfcp_erp_unit_access_denied(unit, "fsuad_1", req); |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 96 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 97 | } |
| 98 | |
| 99 | static void zfcp_fsf_class_not_supp(struct zfcp_fsf_req *req) |
| 100 | { |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 101 | dev_err(&req->adapter->ccw_device->dev, "FCP device not " |
| 102 | "operational because of an unsupported FC class\n"); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 103 | zfcp_erp_adapter_shutdown(req->adapter, 0, "fscns_1", req); |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 104 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 105 | } |
| 106 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 107 | /** |
| 108 | * zfcp_fsf_req_free - free memory used by fsf request |
| 109 | * @fsf_req: pointer to struct zfcp_fsf_req |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 111 | void zfcp_fsf_req_free(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 113 | if (likely(req->pool)) { |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 114 | if (likely(req->qtcb)) |
| 115 | mempool_free(req->qtcb, req->adapter->pool.qtcb_pool); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 116 | mempool_free(req, req->pool); |
Heiko Carstens | dd52e0e | 2006-09-18 22:28:49 +0200 | [diff] [blame] | 117 | return; |
| 118 | } |
| 119 | |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 120 | if (likely(req->qtcb)) |
| 121 | kmem_cache_free(zfcp_data.qtcb_cache, req->qtcb); |
| 122 | kfree(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | } |
| 124 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 125 | 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] | 126 | { |
Swen Schillig | ecf0c77 | 2009-11-24 16:53:58 +0100 | [diff] [blame] | 127 | unsigned long flags; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 128 | struct fsf_status_read_buffer *sr_buf = req->data; |
| 129 | struct zfcp_adapter *adapter = req->adapter; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | struct zfcp_port *port; |
Christof Schmitt | 800c0ca | 2009-11-24 16:54:12 +0100 | [diff] [blame] | 131 | int d_id = ntoh24(sr_buf->d_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 132 | |
Swen Schillig | ecf0c77 | 2009-11-24 16:53:58 +0100 | [diff] [blame] | 133 | read_lock_irqsave(&adapter->port_list_lock, flags); |
| 134 | list_for_each_entry(port, &adapter->port_list, list) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 135 | if (port->d_id == d_id) { |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 136 | zfcp_erp_port_reopen(port, 0, "fssrpc1", req); |
Swen Schillig | ecf0c77 | 2009-11-24 16:53:58 +0100 | [diff] [blame] | 137 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 138 | } |
Swen Schillig | ecf0c77 | 2009-11-24 16:53:58 +0100 | [diff] [blame] | 139 | read_unlock_irqrestore(&adapter->port_list_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | } |
| 141 | |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 142 | static void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req, char *id, |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 143 | struct fsf_link_down_info *link_down) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 145 | struct zfcp_adapter *adapter = req->adapter; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 147 | if (atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED) |
| 148 | return; |
| 149 | |
| 150 | atomic_set_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status); |
Christof Schmitt | 7093293 | 2009-04-17 15:08:15 +0200 | [diff] [blame] | 151 | |
Christof Schmitt | a2fa0ae | 2009-03-02 13:09:08 +0100 | [diff] [blame] | 152 | zfcp_scsi_schedule_rports_block(adapter); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 153 | |
| 154 | if (!link_down) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | goto out; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 156 | |
| 157 | switch (link_down->error_code) { |
| 158 | case FSF_PSQ_LINK_NO_LIGHT: |
| 159 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 160 | "There is no light signal from the local " |
| 161 | "fibre channel cable\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 162 | break; |
| 163 | case FSF_PSQ_LINK_WRAP_PLUG: |
| 164 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 165 | "There is a wrap plug instead of a fibre " |
| 166 | "channel cable\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 167 | break; |
| 168 | case FSF_PSQ_LINK_NO_FCP: |
| 169 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 170 | "The adjacent fibre channel node does not " |
| 171 | "support FCP\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 172 | break; |
| 173 | case FSF_PSQ_LINK_FIRMWARE_UPDATE: |
| 174 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 175 | "The FCP device is suspended because of a " |
| 176 | "firmware update\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 177 | break; |
| 178 | case FSF_PSQ_LINK_INVALID_WWPN: |
| 179 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 180 | "The FCP device detected a WWPN that is " |
| 181 | "duplicate or not valid\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 182 | break; |
| 183 | case FSF_PSQ_LINK_NO_NPIV_SUPPORT: |
| 184 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 185 | "The fibre channel fabric does not support NPIV\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 186 | break; |
| 187 | case FSF_PSQ_LINK_NO_FCP_RESOURCES: |
| 188 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 189 | "The FCP adapter cannot support more NPIV ports\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 190 | break; |
| 191 | case FSF_PSQ_LINK_NO_FABRIC_RESOURCES: |
| 192 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 193 | "The adjacent switch cannot support " |
| 194 | "more NPIV ports\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 195 | break; |
| 196 | case FSF_PSQ_LINK_FABRIC_LOGIN_UNABLE: |
| 197 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 198 | "The FCP adapter could not log in to the " |
| 199 | "fibre channel fabric\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 200 | break; |
| 201 | case FSF_PSQ_LINK_WWPN_ASSIGNMENT_CORRUPTED: |
| 202 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 203 | "The WWPN assignment file on the FCP adapter " |
| 204 | "has been damaged\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 205 | break; |
| 206 | case FSF_PSQ_LINK_MODE_TABLE_CURRUPTED: |
| 207 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 208 | "The mode table on the FCP adapter " |
| 209 | "has been damaged\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 210 | break; |
| 211 | case FSF_PSQ_LINK_NO_WWPN_ASSIGNMENT: |
| 212 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 213 | "All NPIV ports on the FCP adapter have " |
| 214 | "been assigned\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 215 | break; |
| 216 | default: |
| 217 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 218 | "The link between the FCP adapter and " |
| 219 | "the FC fabric is down\n"); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 220 | } |
| 221 | out: |
| 222 | zfcp_erp_adapter_failed(adapter, id, req); |
| 223 | } |
| 224 | |
| 225 | static void zfcp_fsf_status_read_link_down(struct zfcp_fsf_req *req) |
| 226 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 227 | struct fsf_status_read_buffer *sr_buf = req->data; |
| 228 | struct fsf_link_down_info *ldi = |
| 229 | (struct fsf_link_down_info *) &sr_buf->payload; |
| 230 | |
| 231 | switch (sr_buf->status_subtype) { |
| 232 | case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 233 | zfcp_fsf_link_down_info_eval(req, "fssrld1", ldi); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 234 | break; |
| 235 | case FSF_STATUS_READ_SUB_FDISC_FAILED: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 236 | zfcp_fsf_link_down_info_eval(req, "fssrld2", ldi); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 237 | break; |
| 238 | case FSF_STATUS_READ_SUB_FIRMWARE_UPDATE: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 239 | zfcp_fsf_link_down_info_eval(req, "fssrld3", NULL); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 240 | }; |
| 241 | } |
| 242 | |
| 243 | static void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req) |
| 244 | { |
| 245 | struct zfcp_adapter *adapter = req->adapter; |
| 246 | struct fsf_status_read_buffer *sr_buf = req->data; |
| 247 | |
| 248 | if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { |
Swen Schillig | 5771710 | 2009-08-18 15:43:21 +0200 | [diff] [blame] | 249 | zfcp_dbf_hba_fsf_unsol("dism", adapter->dbf, sr_buf); |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 250 | mempool_free(sr_buf, adapter->pool.status_read_data); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 251 | zfcp_fsf_req_free(req); |
| 252 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | } |
| 254 | |
Swen Schillig | 5771710 | 2009-08-18 15:43:21 +0200 | [diff] [blame] | 255 | zfcp_dbf_hba_fsf_unsol("read", adapter->dbf, sr_buf); |
Maxim Shchetynin | 8a36e45 | 2005-09-13 21:50:38 +0200 | [diff] [blame] | 256 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 257 | switch (sr_buf->status_type) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 258 | case FSF_STATUS_READ_PORT_CLOSED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 259 | zfcp_fsf_status_read_port_closed(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | case FSF_STATUS_READ_INCOMING_ELS: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 262 | zfcp_fc_incoming_els(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | case FSF_STATUS_READ_SENSE_DATA_AVAIL: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | case FSF_STATUS_READ_BIT_ERROR_THRESHOLD: |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 267 | dev_warn(&adapter->ccw_device->dev, |
| 268 | "The error threshold for checksum statistics " |
| 269 | "has been exceeded\n"); |
Swen Schillig | 5771710 | 2009-08-18 15:43:21 +0200 | [diff] [blame] | 270 | zfcp_dbf_hba_berr(adapter->dbf, req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | case FSF_STATUS_READ_LINK_DOWN: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 273 | zfcp_fsf_status_read_link_down(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 274 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | case FSF_STATUS_READ_LINK_UP: |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 276 | dev_info(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 277 | "The local link has been restored\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 278 | /* All ports should be marked as ready to run again */ |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 279 | zfcp_erp_modify_adapter_status(adapter, "fssrh_1", NULL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | ZFCP_STATUS_COMMON_RUNNING, |
| 281 | ZFCP_SET); |
| 282 | zfcp_erp_adapter_reopen(adapter, |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 283 | ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | |
| 284 | ZFCP_STATUS_COMMON_ERP_FAILED, |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 285 | "fssrh_2", req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 286 | break; |
Maxim Shchetynin | 9eb69af | 2006-01-05 09:56:47 +0100 | [diff] [blame] | 287 | case FSF_STATUS_READ_NOTIFICATION_LOST: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 288 | if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_ACT_UPDATED) |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 289 | zfcp_erp_adapter_access_changed(adapter, "fssrh_3", |
| 290 | req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 291 | if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_INCOMING_ELS) |
Swen Schillig | 9eae07e | 2009-11-24 16:54:06 +0100 | [diff] [blame] | 292 | queue_work(adapter->work_queue, &adapter->scan_work); |
Maxim Shchetynin | 9eb69af | 2006-01-05 09:56:47 +0100 | [diff] [blame] | 293 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 294 | case FSF_STATUS_READ_CFDC_UPDATED: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 295 | zfcp_erp_adapter_access_changed(adapter, "fssrh_4", req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | break; |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 297 | case FSF_STATUS_READ_FEATURE_UPDATE_ALERT: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 298 | adapter->adapter_features = sr_buf->payload.word[0]; |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 299 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 300 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 301 | |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 302 | mempool_free(sr_buf, adapter->pool.status_read_data); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 303 | zfcp_fsf_req_free(req); |
Swen Schillig | d26ab06 | 2008-05-19 12:17:37 +0200 | [diff] [blame] | 304 | |
| 305 | atomic_inc(&adapter->stat_miss); |
Swen Schillig | 4544683 | 2009-08-18 15:43:17 +0200 | [diff] [blame] | 306 | queue_work(adapter->work_queue, &adapter->stat_work); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 307 | } |
| 308 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 309 | static void zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 311 | switch (req->qtcb->header.fsf_status_qual.word[0]) { |
| 312 | case FSF_SQ_FCP_RSP_AVAILABLE: |
| 313 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
| 314 | case FSF_SQ_NO_RETRY_POSSIBLE: |
| 315 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
| 316 | return; |
| 317 | case FSF_SQ_COMMAND_ABORTED: |
| 318 | req->status |= ZFCP_STATUS_FSFREQ_ABORTED; |
| 319 | break; |
| 320 | case FSF_SQ_NO_RECOM: |
| 321 | dev_err(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 322 | "The FCP adapter reported a problem " |
| 323 | "that cannot be recovered\n"); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 324 | zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfsqe1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 325 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 326 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 327 | /* all non-return stats set FSFREQ_ERROR*/ |
| 328 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 329 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 330 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 331 | static void zfcp_fsf_fsfstatus_eval(struct zfcp_fsf_req *req) |
| 332 | { |
| 333 | if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) |
| 334 | return; |
Andreas Herrmann | 059c97d | 2005-09-13 21:47:52 +0200 | [diff] [blame] | 335 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 336 | switch (req->qtcb->header.fsf_status) { |
| 337 | case FSF_UNKNOWN_COMMAND: |
| 338 | dev_err(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 339 | "The FCP adapter does not recognize the command 0x%x\n", |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 340 | req->qtcb->header.fsf_command); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 341 | zfcp_erp_adapter_shutdown(req->adapter, 0, "fsfse_1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 342 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | case FSF_ADAPTER_STATUS_AVAILABLE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 345 | zfcp_fsf_fsfstatus_qual_eval(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 347 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | } |
| 349 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 350 | static void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 351 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 352 | struct zfcp_adapter *adapter = req->adapter; |
| 353 | struct fsf_qtcb *qtcb = req->qtcb; |
| 354 | union fsf_prot_status_qual *psq = &qtcb->prefix.prot_status_qual; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | |
Swen Schillig | 5771710 | 2009-08-18 15:43:21 +0200 | [diff] [blame] | 356 | zfcp_dbf_hba_fsf_response(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 357 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 358 | if (req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { |
| 359 | req->status |= ZFCP_STATUS_FSFREQ_ERROR | |
| 360 | ZFCP_STATUS_FSFREQ_RETRY; /* only for SCSI cmnds. */ |
| 361 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | } |
| 363 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 364 | switch (qtcb->prefix.prot_status) { |
| 365 | case FSF_PROT_GOOD: |
| 366 | case FSF_PROT_FSF_STATUS_PRESENTED: |
| 367 | return; |
| 368 | case FSF_PROT_QTCB_VERSION_ERROR: |
| 369 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 370 | "QTCB version 0x%x not supported by FCP adapter " |
| 371 | "(0x%x to 0x%x)\n", FSF_QTCB_CURRENT_VERSION, |
| 372 | psq->word[0], psq->word[1]); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 373 | zfcp_erp_adapter_shutdown(adapter, 0, "fspse_1", req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 374 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 375 | case FSF_PROT_ERROR_STATE: |
| 376 | case FSF_PROT_SEQ_NUMB_ERROR: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 377 | zfcp_erp_adapter_reopen(adapter, 0, "fspse_2", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 378 | req->status |= ZFCP_STATUS_FSFREQ_RETRY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 379 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 380 | case FSF_PROT_UNSUPP_QTCB_TYPE: |
| 381 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 382 | "The QTCB type is not supported by the FCP adapter\n"); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 383 | zfcp_erp_adapter_shutdown(adapter, 0, "fspse_3", req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 385 | case FSF_PROT_HOST_CONNECTION_INITIALIZING: |
| 386 | atomic_set_mask(ZFCP_STATUS_ADAPTER_HOST_CON_INIT, |
| 387 | &adapter->status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 389 | case FSF_PROT_DUPLICATE_REQUEST_ID: |
| 390 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 391 | "0x%Lx is an ambiguous request identifier\n", |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 392 | (unsigned long long)qtcb->bottom.support.req_handle); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 393 | zfcp_erp_adapter_shutdown(adapter, 0, "fspse_4", req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 394 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 395 | case FSF_PROT_LINK_DOWN: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 396 | zfcp_fsf_link_down_info_eval(req, "fspse_5", |
| 397 | &psq->link_down_info); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 398 | /* FIXME: reopening adapter now? better wait for link up */ |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 399 | zfcp_erp_adapter_reopen(adapter, 0, "fspse_6", req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 401 | case FSF_PROT_REEST_QUEUE: |
| 402 | /* All ports should be marked as ready to run again */ |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 403 | zfcp_erp_modify_adapter_status(adapter, "fspse_7", NULL, |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 404 | ZFCP_STATUS_COMMON_RUNNING, |
| 405 | ZFCP_SET); |
| 406 | zfcp_erp_adapter_reopen(adapter, |
| 407 | ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED | |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 408 | ZFCP_STATUS_COMMON_ERP_FAILED, |
| 409 | "fspse_8", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 410 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 411 | default: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 412 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 413 | "0x%x is not a valid transfer protocol status\n", |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 414 | qtcb->prefix.prot_status); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 415 | zfcp_erp_adapter_shutdown(adapter, 0, "fspse_9", req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 417 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 418 | } |
| 419 | |
| 420 | /** |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 421 | * zfcp_fsf_req_complete - process completion of a FSF request |
| 422 | * @fsf_req: The FSF request that has been completed. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 423 | * |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 424 | * When a request has been completed either from the FCP adapter, |
| 425 | * or it has been dismissed due to a queue shutdown, this function |
| 426 | * is called to process the completion status and trigger further |
| 427 | * events related to the FSF request. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 428 | */ |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 429 | static void zfcp_fsf_req_complete(struct zfcp_fsf_req *req) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 430 | { |
| 431 | if (unlikely(req->fsf_command == FSF_QTCB_UNSOLICITED_STATUS)) { |
| 432 | zfcp_fsf_status_read_handler(req); |
| 433 | return; |
| 434 | } |
| 435 | |
| 436 | del_timer(&req->timer); |
| 437 | zfcp_fsf_protstatus_eval(req); |
| 438 | zfcp_fsf_fsfstatus_eval(req); |
| 439 | req->handler(req); |
| 440 | |
| 441 | if (req->erp_action) |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 442 | zfcp_erp_notify(req->erp_action, 0); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 443 | |
| 444 | if (likely(req->status & ZFCP_STATUS_FSFREQ_CLEANUP)) |
| 445 | zfcp_fsf_req_free(req); |
| 446 | else |
Swen Schillig | 058b864 | 2009-08-18 15:43:14 +0200 | [diff] [blame] | 447 | complete(&req->completion); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 448 | } |
| 449 | |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 450 | /** |
| 451 | * zfcp_fsf_req_dismiss_all - dismiss all fsf requests |
| 452 | * @adapter: pointer to struct zfcp_adapter |
| 453 | * |
| 454 | * Never ever call this without shutting down the adapter first. |
| 455 | * Otherwise the adapter would continue using and corrupting s390 storage. |
| 456 | * Included BUG_ON() call to ensure this is done. |
| 457 | * ERP is supposed to be the only user of this function. |
| 458 | */ |
| 459 | void zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter) |
| 460 | { |
| 461 | struct zfcp_fsf_req *req, *tmp; |
| 462 | unsigned long flags; |
| 463 | LIST_HEAD(remove_queue); |
| 464 | unsigned int i; |
| 465 | |
| 466 | BUG_ON(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP); |
| 467 | spin_lock_irqsave(&adapter->req_list_lock, flags); |
| 468 | for (i = 0; i < REQUEST_LIST_SIZE; i++) |
| 469 | list_splice_init(&adapter->req_list[i], &remove_queue); |
| 470 | spin_unlock_irqrestore(&adapter->req_list_lock, flags); |
| 471 | |
| 472 | list_for_each_entry_safe(req, tmp, &remove_queue, list) { |
| 473 | list_del(&req->list); |
| 474 | req->status |= ZFCP_STATUS_FSFREQ_DISMISSED; |
| 475 | zfcp_fsf_req_complete(req); |
| 476 | } |
| 477 | } |
| 478 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 479 | static int zfcp_fsf_exchange_config_evaluate(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 480 | { |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 481 | struct fsf_qtcb_bottom_config *bottom = &req->qtcb->bottom.config; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 482 | struct zfcp_adapter *adapter = req->adapter; |
Andreas Herrmann | 13e1e1f | 2005-09-19 16:56:17 +0200 | [diff] [blame] | 483 | struct Scsi_Host *shost = adapter->scsi_host; |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 484 | struct fc_els_flogi *nsp, *plogi; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 485 | |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 486 | /* adjust pointers for missing command code */ |
| 487 | nsp = (struct fc_els_flogi *) ((u8 *)&bottom->nport_serv_param |
| 488 | - sizeof(u32)); |
| 489 | plogi = (struct fc_els_flogi *) ((u8 *)&bottom->plogi_payload |
| 490 | - sizeof(u32)); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 491 | |
| 492 | if (req->data) |
| 493 | memcpy(req->data, bottom, sizeof(*bottom)); |
| 494 | |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 495 | fc_host_port_name(shost) = nsp->fl_wwpn; |
| 496 | fc_host_node_name(shost) = nsp->fl_wwnn; |
Christof Schmitt | 800c0ca | 2009-11-24 16:54:12 +0100 | [diff] [blame] | 497 | fc_host_port_id(shost) = ntoh24(bottom->s_id); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 498 | fc_host_speed(shost) = bottom->fc_link_speed; |
| 499 | fc_host_supported_classes(shost) = FC_COS_CLASS2 | FC_COS_CLASS3; |
| 500 | |
| 501 | adapter->hydra_version = bottom->adapter_type; |
| 502 | adapter->timer_ticks = bottom->timer_interval; |
| 503 | |
| 504 | if (fc_host_permanent_port_name(shost) == -1) |
| 505 | fc_host_permanent_port_name(shost) = fc_host_port_name(shost); |
| 506 | |
| 507 | switch (bottom->fc_topology) { |
| 508 | case FSF_TOPO_P2P: |
Christof Schmitt | 800c0ca | 2009-11-24 16:54:12 +0100 | [diff] [blame] | 509 | adapter->peer_d_id = ntoh24(bottom->peer_d_id); |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 510 | adapter->peer_wwpn = plogi->fl_wwpn; |
| 511 | adapter->peer_wwnn = plogi->fl_wwnn; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 512 | fc_host_port_type(shost) = FC_PORTTYPE_PTP; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 513 | break; |
| 514 | case FSF_TOPO_FABRIC: |
| 515 | fc_host_port_type(shost) = FC_PORTTYPE_NPORT; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 516 | break; |
| 517 | case FSF_TOPO_AL: |
| 518 | fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; |
Christof Schmitt | dceab65 | 2009-05-15 13:18:18 +0200 | [diff] [blame] | 519 | /* fall through */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 520 | default: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 521 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 522 | "Unknown or unsupported arbitrated loop " |
| 523 | "fibre channel topology detected\n"); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 524 | zfcp_erp_adapter_shutdown(adapter, 0, "fsece_1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 525 | return -EIO; |
| 526 | } |
| 527 | |
| 528 | return 0; |
| 529 | } |
| 530 | |
| 531 | static void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req) |
| 532 | { |
| 533 | struct zfcp_adapter *adapter = req->adapter; |
| 534 | struct fsf_qtcb *qtcb = req->qtcb; |
| 535 | struct fsf_qtcb_bottom_config *bottom = &qtcb->bottom.config; |
| 536 | struct Scsi_Host *shost = adapter->scsi_host; |
| 537 | |
| 538 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
| 539 | return; |
| 540 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 541 | adapter->fsf_lic_version = bottom->lic_version; |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 542 | adapter->adapter_features = bottom->adapter_features; |
| 543 | adapter->connection_features = bottom->connection_features; |
| 6f71d9b | 2005-04-10 23:04:28 -0500 | [diff] [blame] | 544 | adapter->peer_wwpn = 0; |
| 545 | adapter->peer_wwnn = 0; |
| 546 | adapter->peer_d_id = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 547 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 548 | switch (qtcb->header.fsf_status) { |
| 549 | case FSF_GOOD: |
| 550 | if (zfcp_fsf_exchange_config_evaluate(req)) |
| 551 | return; |
Swen Schillig | 52ef11a | 2007-08-28 09:31:09 +0200 | [diff] [blame] | 552 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 553 | if (bottom->max_qtcb_size < sizeof(struct fsf_qtcb)) { |
| 554 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 555 | "FCP adapter maximum QTCB size (%d bytes) " |
| 556 | "is too small\n", |
| 557 | bottom->max_qtcb_size); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 558 | zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 559 | return; |
| 560 | } |
| 561 | atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, |
| 562 | &adapter->status); |
| 563 | break; |
| 564 | case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: |
Andreas Herrmann | 13e1e1f | 2005-09-19 16:56:17 +0200 | [diff] [blame] | 565 | fc_host_node_name(shost) = 0; |
| 566 | fc_host_port_name(shost) = 0; |
| 567 | fc_host_port_id(shost) = 0; |
| 568 | fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; |
Andreas Herrmann | ad757cd | 2006-01-13 02:26:11 +0100 | [diff] [blame] | 569 | fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 570 | adapter->hydra_version = 0; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 571 | |
| 572 | atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, |
| 573 | &adapter->status); |
| 574 | |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 575 | zfcp_fsf_link_down_info_eval(req, "fsecdh2", |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 576 | &qtcb->header.fsf_status_qual.link_down_info); |
| 577 | break; |
| 578 | default: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 579 | zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh3", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 580 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 581 | } |
| 582 | |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 583 | if (adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 584 | adapter->hardware_version = bottom->hardware_version; |
Andreas Herrmann | 13e1e1f | 2005-09-19 16:56:17 +0200 | [diff] [blame] | 585 | memcpy(fc_host_serial_number(shost), bottom->serial_number, |
| 586 | min(FC_SERIAL_NUMBER_SIZE, 17)); |
| 587 | EBCASC(fc_host_serial_number(shost), |
| 588 | min(FC_SERIAL_NUMBER_SIZE, 17)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 589 | } |
| 590 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 591 | if (FSF_QTCB_CURRENT_VERSION < bottom->low_qtcb_version) { |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 592 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 593 | "The FCP adapter only supports newer " |
| 594 | "control block versions\n"); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 595 | zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh4", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 596 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 597 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 598 | if (FSF_QTCB_CURRENT_VERSION > bottom->high_qtcb_version) { |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 599 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 600 | "The FCP adapter only supports older " |
| 601 | "control block versions\n"); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 602 | zfcp_erp_adapter_shutdown(adapter, 0, "fsecdh5", req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 603 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 604 | } |
| 605 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 606 | static void zfcp_fsf_exchange_port_evaluate(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 607 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 608 | struct zfcp_adapter *adapter = req->adapter; |
| 609 | struct fsf_qtcb_bottom_port *bottom = &req->qtcb->bottom.port; |
| 610 | struct Scsi_Host *shost = adapter->scsi_host; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 611 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 612 | if (req->data) |
| 613 | memcpy(req->data, bottom, sizeof(*bottom)); |
Andreas Herrmann | 2f8f3ed | 2006-02-11 01:41:50 +0100 | [diff] [blame] | 614 | |
Christof Schmitt | 0282985 | 2009-03-02 13:09:06 +0100 | [diff] [blame] | 615 | if (adapter->connection_features & FSF_FEATURE_NPIV_MODE) { |
Andreas Herrmann | 2f8f3ed | 2006-02-11 01:41:50 +0100 | [diff] [blame] | 616 | fc_host_permanent_port_name(shost) = bottom->wwpn; |
Christof Schmitt | 0282985 | 2009-03-02 13:09:06 +0100 | [diff] [blame] | 617 | fc_host_port_type(shost) = FC_PORTTYPE_NPIV; |
| 618 | } else |
Andreas Herrmann | 2f8f3ed | 2006-02-11 01:41:50 +0100 | [diff] [blame] | 619 | fc_host_permanent_port_name(shost) = fc_host_port_name(shost); |
| 620 | fc_host_maxframe_size(shost) = bottom->maximum_frame_size; |
| 621 | fc_host_supported_speeds(shost) = bottom->supported_speed; |
| 622 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 623 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 624 | 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] | 625 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 626 | struct fsf_qtcb *qtcb = req->qtcb; |
Andreas Herrmann | 2f8f3ed | 2006-02-11 01:41:50 +0100 | [diff] [blame] | 627 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 628 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 629 | return; |
| 630 | |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 631 | switch (qtcb->header.fsf_status) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 632 | case FSF_GOOD: |
| 633 | zfcp_fsf_exchange_port_evaluate(req); |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 634 | break; |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 635 | case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 636 | zfcp_fsf_exchange_port_evaluate(req); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 637 | zfcp_fsf_link_down_info_eval(req, "fsepdh1", |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 638 | &qtcb->header.fsf_status_qual.link_down_info); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 639 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 640 | } |
| 641 | } |
| 642 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 643 | static int zfcp_fsf_sbal_check(struct zfcp_qdio *qdio) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 644 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 645 | struct zfcp_qdio_queue *req_q = &qdio->req_q; |
Martin Petermann | 7001f0c | 2009-04-17 15:08:12 +0200 | [diff] [blame] | 646 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 647 | spin_lock_bh(&qdio->req_q_lock); |
Martin Petermann | 7001f0c | 2009-04-17 15:08:12 +0200 | [diff] [blame] | 648 | if (atomic_read(&req_q->count)) |
| 649 | return 1; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 650 | spin_unlock_bh(&qdio->req_q_lock); |
Martin Petermann | 7001f0c | 2009-04-17 15:08:12 +0200 | [diff] [blame] | 651 | return 0; |
| 652 | } |
| 653 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 654 | static int zfcp_fsf_req_sbal_get(struct zfcp_qdio *qdio) |
Martin Petermann | 7001f0c | 2009-04-17 15:08:12 +0200 | [diff] [blame] | 655 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 656 | struct zfcp_adapter *adapter = qdio->adapter; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 657 | long ret; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 658 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 659 | spin_unlock_bh(&qdio->req_q_lock); |
| 660 | ret = wait_event_interruptible_timeout(qdio->req_q_wq, |
| 661 | zfcp_fsf_sbal_check(qdio), 5 * HZ); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 662 | if (ret > 0) |
| 663 | return 0; |
Christof Schmitt | cbf1ed0 | 2009-07-13 15:06:10 +0200 | [diff] [blame] | 664 | if (!ret) { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 665 | atomic_inc(&qdio->req_q_full); |
Christof Schmitt | cbf1ed0 | 2009-07-13 15:06:10 +0200 | [diff] [blame] | 666 | /* assume hanging outbound queue, try queue recovery */ |
| 667 | zfcp_erp_adapter_reopen(adapter, 0, "fsrsg_1", NULL); |
| 668 | } |
Martin Petermann | 7001f0c | 2009-04-17 15:08:12 +0200 | [diff] [blame] | 669 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 670 | spin_lock_bh(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 671 | return -EIO; |
| 672 | } |
| 673 | |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 674 | static struct zfcp_fsf_req *zfcp_fsf_alloc(mempool_t *pool) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 675 | { |
| 676 | struct zfcp_fsf_req *req; |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 677 | |
| 678 | if (likely(pool)) |
| 679 | req = mempool_alloc(pool, GFP_ATOMIC); |
| 680 | else |
| 681 | req = kmalloc(sizeof(*req), GFP_ATOMIC); |
| 682 | |
| 683 | if (unlikely(!req)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 684 | return NULL; |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 685 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 686 | memset(req, 0, sizeof(*req)); |
Christof Schmitt | 88f2a97 | 2008-11-04 16:35:07 +0100 | [diff] [blame] | 687 | req->pool = pool; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 688 | return req; |
| 689 | } |
| 690 | |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 691 | static struct fsf_qtcb *zfcp_qtcb_alloc(mempool_t *pool) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 692 | { |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 693 | struct fsf_qtcb *qtcb; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 694 | |
| 695 | if (likely(pool)) |
| 696 | qtcb = mempool_alloc(pool, GFP_ATOMIC); |
| 697 | else |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 698 | qtcb = kmem_cache_alloc(zfcp_data.qtcb_cache, GFP_ATOMIC); |
| 699 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 700 | if (unlikely(!qtcb)) |
| 701 | return NULL; |
| 702 | |
| 703 | memset(qtcb, 0, sizeof(*qtcb)); |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 704 | return qtcb; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 705 | } |
| 706 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 707 | static struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_qdio *qdio, |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 708 | u32 fsf_cmd, mempool_t *pool) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 709 | { |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 710 | struct qdio_buffer_element *sbale; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 711 | struct zfcp_qdio_queue *req_q = &qdio->req_q; |
| 712 | struct zfcp_adapter *adapter = qdio->adapter; |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 713 | struct zfcp_fsf_req *req = zfcp_fsf_alloc(pool); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 714 | |
| 715 | if (unlikely(!req)) |
Christof Schmitt | 1e9b164 | 2009-07-13 15:06:04 +0200 | [diff] [blame] | 716 | return ERR_PTR(-ENOMEM); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 717 | |
| 718 | if (adapter->req_no == 0) |
| 719 | adapter->req_no++; |
| 720 | |
| 721 | INIT_LIST_HEAD(&req->list); |
| 722 | init_timer(&req->timer); |
Swen Schillig | 058b864 | 2009-08-18 15:43:14 +0200 | [diff] [blame] | 723 | init_completion(&req->completion); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 724 | |
| 725 | req->adapter = adapter; |
| 726 | req->fsf_command = fsf_cmd; |
Christof Schmitt | 52bfb55 | 2009-03-02 13:08:58 +0100 | [diff] [blame] | 727 | req->req_id = adapter->req_no; |
Swen Schillig | 42428f7 | 2009-08-18 15:43:18 +0200 | [diff] [blame] | 728 | req->queue_req.sbal_number = 1; |
| 729 | req->queue_req.sbal_first = req_q->first; |
| 730 | req->queue_req.sbal_last = req_q->first; |
| 731 | req->queue_req.sbale_curr = 1; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 732 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 733 | sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 734 | sbale[0].addr = (void *) req->req_id; |
| 735 | sbale[0].flags |= SBAL_FLAGS0_COMMAND; |
| 736 | |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 737 | if (likely(fsf_cmd != FSF_QTCB_UNSOLICITED_STATUS)) { |
| 738 | if (likely(pool)) |
| 739 | req->qtcb = zfcp_qtcb_alloc(adapter->pool.qtcb_pool); |
| 740 | else |
| 741 | req->qtcb = zfcp_qtcb_alloc(NULL); |
| 742 | |
| 743 | if (unlikely(!req->qtcb)) { |
| 744 | zfcp_fsf_req_free(req); |
| 745 | return ERR_PTR(-ENOMEM); |
| 746 | } |
| 747 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 748 | req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 749 | req->qtcb->prefix.req_id = req->req_id; |
| 750 | req->qtcb->prefix.ulp_info = 26; |
| 751 | req->qtcb->prefix.qtcb_type = fsf_qtcb_type[req->fsf_command]; |
| 752 | req->qtcb->prefix.qtcb_version = FSF_QTCB_CURRENT_VERSION; |
| 753 | req->qtcb->header.req_handle = req->req_id; |
| 754 | req->qtcb->header.fsf_command = req->fsf_command; |
| 755 | req->seq_no = adapter->fsf_req_seq_no; |
| 756 | req->qtcb->prefix.req_seq_no = adapter->fsf_req_seq_no; |
| 757 | sbale[1].addr = (void *) req->qtcb; |
| 758 | sbale[1].length = sizeof(struct fsf_qtcb); |
| 759 | } |
| 760 | |
| 761 | if (!(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP)) { |
| 762 | zfcp_fsf_req_free(req); |
| 763 | return ERR_PTR(-EIO); |
| 764 | } |
| 765 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 766 | return req; |
| 767 | } |
| 768 | |
| 769 | static int zfcp_fsf_req_send(struct zfcp_fsf_req *req) |
| 770 | { |
| 771 | struct zfcp_adapter *adapter = req->adapter; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 772 | struct zfcp_qdio *qdio = adapter->qdio; |
Martin Petermann | 135ea13 | 2009-04-17 15:08:01 +0200 | [diff] [blame] | 773 | unsigned long flags; |
| 774 | int idx; |
| 775 | int with_qtcb = (req->qtcb != NULL); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 776 | |
| 777 | /* put allocated FSF request into hash table */ |
Heiko Carstens | 45316a8 | 2008-11-04 16:35:06 +0100 | [diff] [blame] | 778 | spin_lock_irqsave(&adapter->req_list_lock, flags); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 779 | idx = zfcp_reqlist_hash(req->req_id); |
| 780 | list_add_tail(&req->list, &adapter->req_list[idx]); |
Heiko Carstens | 45316a8 | 2008-11-04 16:35:06 +0100 | [diff] [blame] | 781 | spin_unlock_irqrestore(&adapter->req_list_lock, flags); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 782 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 783 | req->queue_req.qdio_outb_usage = atomic_read(&qdio->req_q.count); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 784 | req->issued = get_clock(); |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 785 | if (zfcp_qdio_send(qdio, &req->queue_req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 786 | del_timer(&req->timer); |
Christof Schmitt | 3765138 | 2008-11-04 16:35:08 +0100 | [diff] [blame] | 787 | spin_lock_irqsave(&adapter->req_list_lock, flags); |
| 788 | /* lookup request again, list might have changed */ |
| 789 | if (zfcp_reqlist_find_safe(adapter, req)) |
| 790 | zfcp_reqlist_remove(adapter, req); |
| 791 | spin_unlock_irqrestore(&adapter->req_list_lock, flags); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 792 | zfcp_erp_adapter_reopen(adapter, 0, "fsrs__1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 793 | return -EIO; |
| 794 | } |
| 795 | |
| 796 | /* Don't increase for unsolicited status */ |
Martin Petermann | 135ea13 | 2009-04-17 15:08:01 +0200 | [diff] [blame] | 797 | if (with_qtcb) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 798 | adapter->fsf_req_seq_no++; |
Christof Schmitt | 52bfb55 | 2009-03-02 13:08:58 +0100 | [diff] [blame] | 799 | adapter->req_no++; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 800 | |
| 801 | return 0; |
| 802 | } |
| 803 | |
| 804 | /** |
| 805 | * zfcp_fsf_status_read - send status read request |
| 806 | * @adapter: pointer to struct zfcp_adapter |
| 807 | * @req_flags: request flags |
| 808 | * Returns: 0 on success, ERROR otherwise |
| 809 | */ |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 810 | int zfcp_fsf_status_read(struct zfcp_qdio *qdio) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 811 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 812 | struct zfcp_adapter *adapter = qdio->adapter; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 813 | struct zfcp_fsf_req *req; |
| 814 | struct fsf_status_read_buffer *sr_buf; |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 815 | struct qdio_buffer_element *sbale; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 816 | int retval = -EIO; |
| 817 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 818 | spin_lock_bh(&qdio->req_q_lock); |
| 819 | if (zfcp_fsf_req_sbal_get(qdio)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 820 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 821 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 822 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_UNSOLICITED_STATUS, |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 823 | adapter->pool.status_read_req); |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 824 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 825 | retval = PTR_ERR(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 826 | goto out; |
| 827 | } |
| 828 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 829 | sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 830 | sbale[2].flags |= SBAL_FLAGS_LAST_ENTRY; |
Swen Schillig | 42428f7 | 2009-08-18 15:43:18 +0200 | [diff] [blame] | 831 | req->queue_req.sbale_curr = 2; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 832 | |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 833 | sr_buf = mempool_alloc(adapter->pool.status_read_data, GFP_ATOMIC); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 834 | if (!sr_buf) { |
| 835 | retval = -ENOMEM; |
| 836 | goto failed_buf; |
| 837 | } |
| 838 | memset(sr_buf, 0, sizeof(*sr_buf)); |
| 839 | req->data = sr_buf; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 840 | sbale = zfcp_qdio_sbale_curr(qdio, &req->queue_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 841 | sbale->addr = (void *) sr_buf; |
| 842 | sbale->length = sizeof(*sr_buf); |
| 843 | |
| 844 | retval = zfcp_fsf_req_send(req); |
| 845 | if (retval) |
| 846 | goto failed_req_send; |
| 847 | |
| 848 | goto out; |
| 849 | |
| 850 | failed_req_send: |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 851 | mempool_free(sr_buf, adapter->pool.status_read_data); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 852 | failed_buf: |
| 853 | zfcp_fsf_req_free(req); |
Swen Schillig | 5771710 | 2009-08-18 15:43:21 +0200 | [diff] [blame] | 854 | zfcp_dbf_hba_fsf_unsol("fail", adapter->dbf, NULL); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 855 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 856 | spin_unlock_bh(&qdio->req_q_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 857 | return retval; |
| 858 | } |
| 859 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 860 | 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] | 861 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 862 | struct zfcp_unit *unit = req->data; |
| 863 | union fsf_status_qual *fsq = &req->qtcb->header.fsf_status_qual; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 864 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 865 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
| 866 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 867 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 868 | switch (req->qtcb->header.fsf_status) { |
| 869 | case FSF_PORT_HANDLE_NOT_VALID: |
| 870 | if (fsq->word[0] == fsq->word[1]) { |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 871 | zfcp_erp_adapter_reopen(unit->port->adapter, 0, |
| 872 | "fsafch1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 873 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 874 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 875 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 876 | case FSF_LUN_HANDLE_NOT_VALID: |
| 877 | if (fsq->word[0] == fsq->word[1]) { |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 878 | zfcp_erp_port_reopen(unit->port, 0, "fsafch2", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 879 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 880 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 881 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 882 | case FSF_FCP_COMMAND_DOES_NOT_EXIST: |
| 883 | req->status |= ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 884 | break; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 885 | case FSF_PORT_BOXED: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 886 | zfcp_erp_port_boxed(unit->port, "fsafch3", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 887 | req->status |= ZFCP_STATUS_FSFREQ_ERROR | |
| 888 | ZFCP_STATUS_FSFREQ_RETRY; |
| 889 | break; |
| 890 | case FSF_LUN_BOXED: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 891 | zfcp_erp_unit_boxed(unit, "fsafch4", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 892 | req->status |= ZFCP_STATUS_FSFREQ_ERROR | |
| 893 | ZFCP_STATUS_FSFREQ_RETRY; |
| 894 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 895 | case FSF_ADAPTER_STATUS_AVAILABLE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 896 | switch (fsq->word[0]) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 897 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Swen Schillig | 6f53a2d | 2009-08-18 15:43:23 +0200 | [diff] [blame] | 898 | zfcp_fc_test_link(unit->port); |
Christof Schmitt | dceab65 | 2009-05-15 13:18:18 +0200 | [diff] [blame] | 899 | /* fall through */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 900 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 901 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 902 | break; |
| 903 | } |
| 904 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 905 | case FSF_GOOD: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 906 | req->status |= ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED; |
| 907 | break; |
| 908 | } |
| 909 | } |
| 910 | |
| 911 | /** |
| 912 | * zfcp_fsf_abort_fcp_command - abort running SCSI command |
| 913 | * @old_req_id: unsigned long |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 914 | * @unit: pointer to struct zfcp_unit |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 915 | * Returns: pointer to struct zfcp_fsf_req |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 916 | */ |
| 917 | |
| 918 | struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id, |
Christof Schmitt | 63caf36 | 2009-03-02 13:09:00 +0100 | [diff] [blame] | 919 | struct zfcp_unit *unit) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 920 | { |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 921 | struct qdio_buffer_element *sbale; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 922 | struct zfcp_fsf_req *req = NULL; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 923 | struct zfcp_qdio *qdio = unit->port->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 924 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 925 | spin_lock_bh(&qdio->req_q_lock); |
| 926 | if (zfcp_fsf_req_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 927 | goto out; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 928 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_ABORT_FCP_CMND, |
| 929 | qdio->adapter->pool.scsi_abort); |
Swen Schillig | 633528c | 2008-11-26 18:07:37 +0100 | [diff] [blame] | 930 | if (IS_ERR(req)) { |
| 931 | req = NULL; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 932 | goto out; |
Swen Schillig | 633528c | 2008-11-26 18:07:37 +0100 | [diff] [blame] | 933 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 934 | |
| 935 | if (unlikely(!(atomic_read(&unit->status) & |
| 936 | ZFCP_STATUS_COMMON_UNBLOCKED))) |
| 937 | goto out_error_free; |
| 938 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 939 | sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 940 | sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; |
| 941 | sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; |
| 942 | |
| 943 | req->data = unit; |
| 944 | req->handler = zfcp_fsf_abort_fcp_command_handler; |
| 945 | req->qtcb->header.lun_handle = unit->handle; |
| 946 | req->qtcb->header.port_handle = unit->port->handle; |
| 947 | req->qtcb->bottom.support.req_handle = (u64) old_req_id; |
| 948 | |
| 949 | zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); |
| 950 | if (!zfcp_fsf_req_send(req)) |
| 951 | goto out; |
| 952 | |
| 953 | out_error_free: |
| 954 | zfcp_fsf_req_free(req); |
| 955 | req = NULL; |
| 956 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 957 | spin_unlock_bh(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 958 | return req; |
| 959 | } |
| 960 | |
| 961 | static void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req) |
| 962 | { |
| 963 | struct zfcp_adapter *adapter = req->adapter; |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame^] | 964 | struct zfcp_fsf_ct_els *ct = req->data; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 965 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 966 | |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame^] | 967 | ct->status = -EINVAL; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 968 | |
| 969 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
| 970 | goto skip_fsfstatus; |
| 971 | |
| 972 | switch (header->fsf_status) { |
| 973 | case FSF_GOOD: |
Swen Schillig | 5771710 | 2009-08-18 15:43:21 +0200 | [diff] [blame] | 974 | zfcp_dbf_san_ct_response(req); |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame^] | 975 | ct->status = 0; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 976 | break; |
| 977 | case FSF_SERVICE_CLASS_NOT_SUPPORTED: |
| 978 | zfcp_fsf_class_not_supp(req); |
| 979 | break; |
| 980 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 981 | switch (header->fsf_status_qual.word[0]){ |
| 982 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 983 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
| 984 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 985 | break; |
| 986 | } |
| 987 | break; |
| 988 | case FSF_ACCESS_DENIED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 989 | break; |
| 990 | case FSF_PORT_BOXED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 991 | req->status |= ZFCP_STATUS_FSFREQ_ERROR | |
| 992 | ZFCP_STATUS_FSFREQ_RETRY; |
| 993 | break; |
| 994 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 995 | zfcp_erp_adapter_reopen(adapter, 0, "fsscth1", req); |
Christof Schmitt | dceab65 | 2009-05-15 13:18:18 +0200 | [diff] [blame] | 996 | /* fall through */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 997 | case FSF_GENERIC_COMMAND_REJECTED: |
| 998 | case FSF_PAYLOAD_SIZE_MISMATCH: |
| 999 | case FSF_REQUEST_SIZE_TOO_LARGE: |
| 1000 | case FSF_RESPONSE_SIZE_TOO_LARGE: |
| 1001 | case FSF_SBAL_MISMATCH: |
| 1002 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1003 | break; |
| 1004 | } |
| 1005 | |
| 1006 | skip_fsfstatus: |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame^] | 1007 | if (ct->handler) |
| 1008 | ct->handler(ct->handler_data); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1009 | } |
| 1010 | |
Christof Schmitt | 426f605 | 2009-07-13 15:06:06 +0200 | [diff] [blame] | 1011 | static void zfcp_fsf_setup_ct_els_unchained(struct qdio_buffer_element *sbale, |
| 1012 | struct scatterlist *sg_req, |
| 1013 | struct scatterlist *sg_resp) |
| 1014 | { |
| 1015 | sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE_READ; |
| 1016 | sbale[2].addr = sg_virt(sg_req); |
| 1017 | sbale[2].length = sg_req->length; |
| 1018 | sbale[3].addr = sg_virt(sg_resp); |
| 1019 | sbale[3].length = sg_resp->length; |
| 1020 | sbale[3].flags |= SBAL_FLAGS_LAST_ENTRY; |
| 1021 | } |
| 1022 | |
| 1023 | static int zfcp_fsf_one_sbal(struct scatterlist *sg) |
| 1024 | { |
| 1025 | return sg_is_last(sg) && sg->length <= PAGE_SIZE; |
| 1026 | } |
| 1027 | |
Christof Schmitt | 39eb7e9a | 2008-12-19 16:57:01 +0100 | [diff] [blame] | 1028 | static int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req, |
| 1029 | struct scatterlist *sg_req, |
| 1030 | struct scatterlist *sg_resp, |
| 1031 | int max_sbals) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1032 | { |
Swen Schillig | 42428f7 | 2009-08-18 15:43:18 +0200 | [diff] [blame] | 1033 | struct zfcp_adapter *adapter = req->adapter; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1034 | struct qdio_buffer_element *sbale = zfcp_qdio_sbale_req(adapter->qdio, |
Swen Schillig | 42428f7 | 2009-08-18 15:43:18 +0200 | [diff] [blame] | 1035 | &req->queue_req); |
| 1036 | u32 feat = adapter->adapter_features; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1037 | int bytes; |
| 1038 | |
Christof Schmitt | 39eb7e9a | 2008-12-19 16:57:01 +0100 | [diff] [blame] | 1039 | if (!(feat & FSF_FEATURE_ELS_CT_CHAINED_SBALS)) { |
Christof Schmitt | 426f605 | 2009-07-13 15:06:06 +0200 | [diff] [blame] | 1040 | if (!zfcp_fsf_one_sbal(sg_req) || !zfcp_fsf_one_sbal(sg_resp)) |
Christof Schmitt | 39eb7e9a | 2008-12-19 16:57:01 +0100 | [diff] [blame] | 1041 | return -EOPNOTSUPP; |
| 1042 | |
Christof Schmitt | 426f605 | 2009-07-13 15:06:06 +0200 | [diff] [blame] | 1043 | zfcp_fsf_setup_ct_els_unchained(sbale, sg_req, sg_resp); |
| 1044 | return 0; |
| 1045 | } |
| 1046 | |
| 1047 | /* use single, unchained SBAL if it can hold the request */ |
| 1048 | if (zfcp_fsf_one_sbal(sg_req) && zfcp_fsf_one_sbal(sg_resp)) { |
| 1049 | zfcp_fsf_setup_ct_els_unchained(sbale, sg_req, sg_resp); |
Christof Schmitt | 39eb7e9a | 2008-12-19 16:57:01 +0100 | [diff] [blame] | 1050 | return 0; |
| 1051 | } |
| 1052 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1053 | bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->queue_req, |
Swen Schillig | 42428f7 | 2009-08-18 15:43:18 +0200 | [diff] [blame] | 1054 | SBAL_FLAGS0_TYPE_WRITE_READ, |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1055 | sg_req, max_sbals); |
| 1056 | if (bytes <= 0) |
Christof Schmitt | 9072df4 | 2009-07-13 15:06:07 +0200 | [diff] [blame] | 1057 | return -EIO; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1058 | req->qtcb->bottom.support.req_buf_length = bytes; |
Swen Schillig | 42428f7 | 2009-08-18 15:43:18 +0200 | [diff] [blame] | 1059 | req->queue_req.sbale_curr = ZFCP_LAST_SBALE_PER_SBAL; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1060 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1061 | bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->queue_req, |
Swen Schillig | 42428f7 | 2009-08-18 15:43:18 +0200 | [diff] [blame] | 1062 | SBAL_FLAGS0_TYPE_WRITE_READ, |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1063 | sg_resp, max_sbals); |
Christof Schmitt | b1a5898 | 2009-09-24 10:23:21 +0200 | [diff] [blame] | 1064 | req->qtcb->bottom.support.resp_buf_length = bytes; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1065 | if (bytes <= 0) |
Christof Schmitt | 9072df4 | 2009-07-13 15:06:07 +0200 | [diff] [blame] | 1066 | return -EIO; |
Christof Schmitt | 98fc4d5 | 2009-08-18 15:43:26 +0200 | [diff] [blame] | 1067 | |
Christof Schmitt | b1a5898 | 2009-09-24 10:23:21 +0200 | [diff] [blame] | 1068 | return 0; |
| 1069 | } |
| 1070 | |
| 1071 | static int zfcp_fsf_setup_ct_els(struct zfcp_fsf_req *req, |
| 1072 | struct scatterlist *sg_req, |
| 1073 | struct scatterlist *sg_resp, |
| 1074 | int max_sbals) |
| 1075 | { |
| 1076 | int ret; |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 1077 | unsigned int fcp_chan_timeout; |
Christof Schmitt | b1a5898 | 2009-09-24 10:23:21 +0200 | [diff] [blame] | 1078 | |
| 1079 | ret = zfcp_fsf_setup_ct_els_sbals(req, sg_req, sg_resp, max_sbals); |
| 1080 | if (ret) |
| 1081 | return ret; |
| 1082 | |
Christof Schmitt | 98fc4d5 | 2009-08-18 15:43:26 +0200 | [diff] [blame] | 1083 | /* common settings for ct/gs and els requests */ |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 1084 | fcp_chan_timeout = 2 * FC_DEF_R_A_TOV / 1000; |
Christof Schmitt | 98fc4d5 | 2009-08-18 15:43:26 +0200 | [diff] [blame] | 1085 | req->qtcb->bottom.support.service_class = FSF_CLASS_3; |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 1086 | req->qtcb->bottom.support.timeout = fcp_chan_timeout; |
| 1087 | zfcp_fsf_start_timer(req, (fcp_chan_timeout + 10) * HZ); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1088 | |
| 1089 | return 0; |
| 1090 | } |
| 1091 | |
| 1092 | /** |
| 1093 | * zfcp_fsf_send_ct - initiate a Generic Service request (FC-GS) |
| 1094 | * @ct: pointer to struct zfcp_send_ct with data for request |
| 1095 | * @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] | 1096 | */ |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame^] | 1097 | int zfcp_fsf_send_ct(struct zfcp_fc_wka_port *wka_port, |
| 1098 | struct zfcp_fsf_ct_els *ct, mempool_t *pool) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1099 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1100 | struct zfcp_qdio *qdio = wka_port->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1101 | struct zfcp_fsf_req *req; |
| 1102 | int ret = -EIO; |
| 1103 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1104 | spin_lock_bh(&qdio->req_q_lock); |
| 1105 | if (zfcp_fsf_req_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1106 | goto out; |
| 1107 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1108 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_GENERIC, pool); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1109 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1110 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1111 | ret = PTR_ERR(req); |
| 1112 | goto out; |
| 1113 | } |
| 1114 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1115 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | b1a5898 | 2009-09-24 10:23:21 +0200 | [diff] [blame] | 1116 | ret = zfcp_fsf_setup_ct_els(req, ct->req, ct->resp, |
| 1117 | FSF_MAX_SBALS_PER_REQ); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1118 | if (ret) |
| 1119 | goto failed_send; |
| 1120 | |
| 1121 | req->handler = zfcp_fsf_send_ct_handler; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1122 | req->qtcb->header.port_handle = wka_port->handle; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1123 | req->data = ct; |
| 1124 | |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame^] | 1125 | zfcp_dbf_san_ct_request(req, wka_port->d_id); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1126 | |
| 1127 | ret = zfcp_fsf_req_send(req); |
| 1128 | if (ret) |
| 1129 | goto failed_send; |
| 1130 | |
| 1131 | goto out; |
| 1132 | |
| 1133 | failed_send: |
| 1134 | zfcp_fsf_req_free(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1135 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1136 | spin_unlock_bh(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1137 | return ret; |
| 1138 | } |
| 1139 | |
| 1140 | static void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req) |
| 1141 | { |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame^] | 1142 | struct zfcp_fsf_ct_els *send_els = req->data; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1143 | struct zfcp_port *port = send_els->port; |
| 1144 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 1145 | |
| 1146 | send_els->status = -EINVAL; |
| 1147 | |
| 1148 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
| 1149 | goto skip_fsfstatus; |
| 1150 | |
| 1151 | switch (header->fsf_status) { |
| 1152 | case FSF_GOOD: |
Swen Schillig | 5771710 | 2009-08-18 15:43:21 +0200 | [diff] [blame] | 1153 | zfcp_dbf_san_els_response(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1154 | send_els->status = 0; |
| 1155 | break; |
| 1156 | case FSF_SERVICE_CLASS_NOT_SUPPORTED: |
| 1157 | zfcp_fsf_class_not_supp(req); |
| 1158 | break; |
| 1159 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 1160 | switch (header->fsf_status_qual.word[0]){ |
| 1161 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1162 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
| 1163 | case FSF_SQ_RETRY_IF_POSSIBLE: |
| 1164 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1165 | break; |
| 1166 | } |
| 1167 | break; |
| 1168 | case FSF_ELS_COMMAND_REJECTED: |
| 1169 | case FSF_PAYLOAD_SIZE_MISMATCH: |
| 1170 | case FSF_REQUEST_SIZE_TOO_LARGE: |
| 1171 | case FSF_RESPONSE_SIZE_TOO_LARGE: |
| 1172 | break; |
| 1173 | case FSF_ACCESS_DENIED: |
Christof Schmitt | dc577d5 | 2009-05-15 13:18:22 +0200 | [diff] [blame] | 1174 | if (port) |
| 1175 | zfcp_fsf_access_denied_port(req, port); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1176 | break; |
| 1177 | case FSF_SBAL_MISMATCH: |
| 1178 | /* should never occure, avoided in zfcp_fsf_send_els */ |
| 1179 | /* fall through */ |
| 1180 | default: |
| 1181 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1182 | break; |
| 1183 | } |
| 1184 | skip_fsfstatus: |
| 1185 | if (send_els->handler) |
| 1186 | send_els->handler(send_els->handler_data); |
| 1187 | } |
| 1188 | |
| 1189 | /** |
| 1190 | * zfcp_fsf_send_els - initiate an ELS command (FC-FS) |
| 1191 | * @els: pointer to struct zfcp_send_els with data for the command |
| 1192 | */ |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame^] | 1193 | int zfcp_fsf_send_els(struct zfcp_adapter *adapter, u32 d_id, |
| 1194 | struct zfcp_fsf_ct_els *els) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1195 | { |
| 1196 | struct zfcp_fsf_req *req; |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame^] | 1197 | struct zfcp_qdio *qdio = adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1198 | int ret = -EIO; |
| 1199 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1200 | spin_lock_bh(&qdio->req_q_lock); |
| 1201 | if (zfcp_fsf_req_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1202 | goto out; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1203 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1204 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_SEND_ELS, NULL); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1205 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1206 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1207 | ret = PTR_ERR(req); |
| 1208 | goto out; |
| 1209 | } |
| 1210 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1211 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Christof Schmitt | b1a5898 | 2009-09-24 10:23:21 +0200 | [diff] [blame] | 1212 | ret = zfcp_fsf_setup_ct_els(req, els->req, els->resp, 2); |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 1213 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1214 | if (ret) |
| 1215 | goto failed_send; |
| 1216 | |
Christof Schmitt | 7c7dc19 | 2009-11-24 16:54:13 +0100 | [diff] [blame^] | 1217 | hton24(req->qtcb->bottom.support.d_id, d_id); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1218 | req->handler = zfcp_fsf_send_els_handler; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1219 | req->data = els; |
| 1220 | |
Swen Schillig | 5771710 | 2009-08-18 15:43:21 +0200 | [diff] [blame] | 1221 | zfcp_dbf_san_els_request(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1222 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1223 | ret = zfcp_fsf_req_send(req); |
| 1224 | if (ret) |
| 1225 | goto failed_send; |
| 1226 | |
| 1227 | goto out; |
| 1228 | |
| 1229 | failed_send: |
| 1230 | zfcp_fsf_req_free(req); |
| 1231 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1232 | spin_unlock_bh(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1233 | return ret; |
| 1234 | } |
| 1235 | |
| 1236 | int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action) |
| 1237 | { |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 1238 | struct qdio_buffer_element *sbale; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1239 | struct zfcp_fsf_req *req; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1240 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
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 | spin_lock_bh(&qdio->req_q_lock); |
| 1244 | if (zfcp_fsf_req_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1245 | goto out; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1246 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1247 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, |
| 1248 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1249 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1250 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1251 | retval = PTR_ERR(req); |
| 1252 | goto out; |
| 1253 | } |
| 1254 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1255 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1256 | sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1257 | sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; |
| 1258 | sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; |
| 1259 | |
| 1260 | req->qtcb->bottom.config.feature_selection = |
| 1261 | FSF_FEATURE_CFDC | |
| 1262 | FSF_FEATURE_LUN_SHARING | |
| 1263 | FSF_FEATURE_NOTIFICATION_LOST | |
| 1264 | FSF_FEATURE_UPDATE_ALERT; |
| 1265 | req->erp_action = erp_action; |
| 1266 | req->handler = zfcp_fsf_exchange_config_data_handler; |
| 1267 | erp_action->fsf_req = req; |
| 1268 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1269 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1270 | retval = zfcp_fsf_req_send(req); |
| 1271 | if (retval) { |
| 1272 | zfcp_fsf_req_free(req); |
| 1273 | erp_action->fsf_req = NULL; |
| 1274 | } |
| 1275 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1276 | spin_unlock_bh(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1277 | return retval; |
| 1278 | } |
| 1279 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1280 | int zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *qdio, |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1281 | struct fsf_qtcb_bottom_config *data) |
| 1282 | { |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 1283 | struct qdio_buffer_element *sbale; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1284 | struct zfcp_fsf_req *req = NULL; |
| 1285 | int retval = -EIO; |
| 1286 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1287 | spin_lock_bh(&qdio->req_q_lock); |
| 1288 | if (zfcp_fsf_req_sbal_get(qdio)) |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1289 | goto out_unlock; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1290 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1291 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_CONFIG_DATA, NULL); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1292 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1293 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1294 | retval = PTR_ERR(req); |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1295 | goto out_unlock; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1296 | } |
| 1297 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1298 | sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1299 | sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; |
| 1300 | sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; |
| 1301 | req->handler = zfcp_fsf_exchange_config_data_handler; |
| 1302 | |
| 1303 | req->qtcb->bottom.config.feature_selection = |
| 1304 | FSF_FEATURE_CFDC | |
| 1305 | FSF_FEATURE_LUN_SHARING | |
| 1306 | FSF_FEATURE_NOTIFICATION_LOST | |
| 1307 | FSF_FEATURE_UPDATE_ALERT; |
| 1308 | |
| 1309 | if (data) |
| 1310 | req->data = data; |
| 1311 | |
| 1312 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
| 1313 | retval = zfcp_fsf_req_send(req); |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1314 | spin_unlock_bh(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1315 | if (!retval) |
Swen Schillig | 058b864 | 2009-08-18 15:43:14 +0200 | [diff] [blame] | 1316 | wait_for_completion(&req->completion); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1317 | |
| 1318 | zfcp_fsf_req_free(req); |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1319 | return retval; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1320 | |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1321 | out_unlock: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1322 | spin_unlock_bh(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1323 | return retval; |
| 1324 | } |
| 1325 | |
| 1326 | /** |
| 1327 | * zfcp_fsf_exchange_port_data - request information about local port |
| 1328 | * @erp_action: ERP action for the adapter for which port data is requested |
| 1329 | * Returns: 0 on success, error otherwise |
| 1330 | */ |
| 1331 | int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action) |
| 1332 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1333 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 1334 | struct qdio_buffer_element *sbale; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1335 | struct zfcp_fsf_req *req; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1336 | int retval = -EIO; |
| 1337 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1338 | if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1339 | return -EOPNOTSUPP; |
| 1340 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1341 | spin_lock_bh(&qdio->req_q_lock); |
| 1342 | if (zfcp_fsf_req_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1343 | goto out; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1344 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1345 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, |
| 1346 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1347 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1348 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1349 | retval = PTR_ERR(req); |
| 1350 | goto out; |
| 1351 | } |
| 1352 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1353 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1354 | sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1355 | sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; |
| 1356 | sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; |
| 1357 | |
| 1358 | req->handler = zfcp_fsf_exchange_port_data_handler; |
| 1359 | req->erp_action = erp_action; |
| 1360 | erp_action->fsf_req = req; |
| 1361 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1362 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1363 | retval = zfcp_fsf_req_send(req); |
| 1364 | if (retval) { |
| 1365 | zfcp_fsf_req_free(req); |
| 1366 | erp_action->fsf_req = NULL; |
| 1367 | } |
| 1368 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1369 | spin_unlock_bh(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1370 | return retval; |
| 1371 | } |
| 1372 | |
| 1373 | /** |
| 1374 | * zfcp_fsf_exchange_port_data_sync - request information about local port |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1375 | * @qdio: pointer to struct zfcp_qdio |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1376 | * @data: pointer to struct fsf_qtcb_bottom_port |
| 1377 | * Returns: 0 on success, error otherwise |
| 1378 | */ |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1379 | int zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *qdio, |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1380 | struct fsf_qtcb_bottom_port *data) |
| 1381 | { |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 1382 | struct qdio_buffer_element *sbale; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1383 | struct zfcp_fsf_req *req = NULL; |
| 1384 | int retval = -EIO; |
| 1385 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1386 | if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1387 | return -EOPNOTSUPP; |
| 1388 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1389 | spin_lock_bh(&qdio->req_q_lock); |
| 1390 | if (zfcp_fsf_req_sbal_get(qdio)) |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1391 | goto out_unlock; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1392 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1393 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_EXCHANGE_PORT_DATA, NULL); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1394 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1395 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1396 | retval = PTR_ERR(req); |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1397 | goto out_unlock; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1398 | } |
| 1399 | |
| 1400 | if (data) |
| 1401 | req->data = data; |
| 1402 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1403 | sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1404 | sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; |
| 1405 | sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; |
| 1406 | |
| 1407 | req->handler = zfcp_fsf_exchange_port_data_handler; |
| 1408 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
| 1409 | retval = zfcp_fsf_req_send(req); |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1410 | spin_unlock_bh(&qdio->req_q_lock); |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1411 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1412 | if (!retval) |
Swen Schillig | 058b864 | 2009-08-18 15:43:14 +0200 | [diff] [blame] | 1413 | wait_for_completion(&req->completion); |
| 1414 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1415 | zfcp_fsf_req_free(req); |
| 1416 | |
| 1417 | return retval; |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1418 | |
| 1419 | out_unlock: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1420 | spin_unlock_bh(&qdio->req_q_lock); |
Christof Schmitt | ada81b7 | 2009-04-17 15:08:03 +0200 | [diff] [blame] | 1421 | return retval; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1422 | } |
| 1423 | |
| 1424 | static void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req) |
| 1425 | { |
| 1426 | struct zfcp_port *port = req->data; |
| 1427 | struct fsf_qtcb_header *header = &req->qtcb->header; |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 1428 | struct fc_els_flogi *plogi; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1429 | |
| 1430 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Martin Petermann | a17c585 | 2009-05-15 13:18:19 +0200 | [diff] [blame] | 1431 | goto out; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1432 | |
| 1433 | switch (header->fsf_status) { |
| 1434 | case FSF_PORT_ALREADY_OPEN: |
| 1435 | break; |
| 1436 | case FSF_ACCESS_DENIED: |
| 1437 | zfcp_fsf_access_denied_port(req, port); |
| 1438 | break; |
| 1439 | case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: |
| 1440 | dev_warn(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 1441 | "Not enough FCP adapter resources to open " |
Swen Schillig | 7ba58c9 | 2008-10-01 12:42:18 +0200 | [diff] [blame] | 1442 | "remote port 0x%016Lx\n", |
| 1443 | (unsigned long long)port->wwpn); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1444 | zfcp_erp_port_failed(port, "fsoph_1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1445 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1446 | break; |
| 1447 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 1448 | switch (header->fsf_status_qual.word[0]) { |
| 1449 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
| 1450 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1451 | case FSF_SQ_NO_RETRY_POSSIBLE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1452 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 1453 | break; |
| 1454 | } |
| 1455 | break; |
| 1456 | case FSF_GOOD: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1457 | port->handle = header->port_handle; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1458 | atomic_set_mask(ZFCP_STATUS_COMMON_OPEN | |
| 1459 | ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); |
Andreas Herrmann | d736a27b | 2005-06-13 13:23:57 +0200 | [diff] [blame] | 1460 | atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | |
| 1461 | ZFCP_STATUS_COMMON_ACCESS_BOXED, |
| 1462 | &port->status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1463 | /* check whether D_ID has changed during open */ |
| 1464 | /* |
| 1465 | * FIXME: This check is not airtight, as the FCP channel does |
| 1466 | * not monitor closures of target port connections caused on |
| 1467 | * the remote side. Thus, they might miss out on invalidating |
| 1468 | * locally cached WWPNs (and other N_Port parameters) of gone |
| 1469 | * target ports. So, our heroic attempt to make things safe |
| 1470 | * could be undermined by 'open port' response data tagged with |
| 1471 | * obsolete WWPNs. Another reason to monitor potential |
| 1472 | * connection closures ourself at least (by interpreting |
| 1473 | * incoming ELS' and unsolicited status). It just crosses my |
| 1474 | * mind that one should be able to cross-check by means of |
| 1475 | * another GID_PN straight after a port has been opened. |
| 1476 | * Alternately, an ADISC/PDISC ELS should suffice, as well. |
| 1477 | */ |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 1478 | plogi = (struct fc_els_flogi *) req->qtcb->bottom.support.els; |
Christof Schmitt | 39eb7e9a | 2008-12-19 16:57:01 +0100 | [diff] [blame] | 1479 | if (req->qtcb->bottom.support.els1_length >= |
Christof Schmitt | 9d05ce2 | 2009-11-24 16:54:09 +0100 | [diff] [blame] | 1480 | FSF_PLOGI_MIN_LEN) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1481 | zfcp_fc_plogi_evaluate(port, plogi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1482 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1483 | case FSF_UNKNOWN_OP_SUBTYPE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1484 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1485 | break; |
| 1486 | } |
Martin Petermann | a17c585 | 2009-05-15 13:18:19 +0200 | [diff] [blame] | 1487 | |
| 1488 | out: |
Swen Schillig | f3450c7 | 2009-11-24 16:53:59 +0100 | [diff] [blame] | 1489 | put_device(&port->sysfs_device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1490 | } |
| 1491 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1492 | /** |
| 1493 | * zfcp_fsf_open_port - create and send open port request |
| 1494 | * @erp_action: pointer to struct zfcp_erp_action |
| 1495 | * Returns: 0 on success, error otherwise |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1496 | */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1497 | int zfcp_fsf_open_port(struct zfcp_erp_action *erp_action) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1498 | { |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 1499 | struct qdio_buffer_element *sbale; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1500 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Martin Petermann | a17c585 | 2009-05-15 13:18:19 +0200 | [diff] [blame] | 1501 | struct zfcp_port *port = erp_action->port; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1502 | struct zfcp_fsf_req *req; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1503 | int retval = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1504 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1505 | spin_lock_bh(&qdio->req_q_lock); |
| 1506 | if (zfcp_fsf_req_sbal_get(qdio)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1507 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1508 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1509 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, |
| 1510 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1511 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1512 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1513 | retval = PTR_ERR(req); |
| 1514 | goto out; |
| 1515 | } |
| 1516 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1517 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1518 | sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1519 | sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; |
| 1520 | sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; |
| 1521 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1522 | req->handler = zfcp_fsf_open_port_handler; |
Christof Schmitt | 800c0ca | 2009-11-24 16:54:12 +0100 | [diff] [blame] | 1523 | hton24(req->qtcb->bottom.support.d_id, port->d_id); |
Martin Petermann | a17c585 | 2009-05-15 13:18:19 +0200 | [diff] [blame] | 1524 | req->data = port; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1525 | req->erp_action = erp_action; |
| 1526 | erp_action->fsf_req = req; |
Swen Schillig | f3450c7 | 2009-11-24 16:53:59 +0100 | [diff] [blame] | 1527 | get_device(&port->sysfs_device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1528 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1529 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1530 | retval = zfcp_fsf_req_send(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1531 | if (retval) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1532 | zfcp_fsf_req_free(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1533 | erp_action->fsf_req = NULL; |
Swen Schillig | f3450c7 | 2009-11-24 16:53:59 +0100 | [diff] [blame] | 1534 | put_device(&port->sysfs_device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1535 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1536 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1537 | spin_unlock_bh(&qdio->req_q_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1538 | return retval; |
| 1539 | } |
| 1540 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1541 | static void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1542 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1543 | struct zfcp_port *port = req->data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1544 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1545 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 1546 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1547 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1548 | switch (req->qtcb->header.fsf_status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1549 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1550 | zfcp_erp_adapter_reopen(port->adapter, 0, "fscph_1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1551 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1552 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1553 | case FSF_ADAPTER_STATUS_AVAILABLE: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1554 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1555 | case FSF_GOOD: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1556 | zfcp_erp_modify_port_status(port, "fscph_2", req, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1557 | ZFCP_STATUS_COMMON_OPEN, |
| 1558 | ZFCP_CLEAR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1559 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1560 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1561 | } |
| 1562 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1563 | /** |
| 1564 | * zfcp_fsf_close_port - create and send close port request |
| 1565 | * @erp_action: pointer to struct zfcp_erp_action |
| 1566 | * Returns: 0 on success, error otherwise |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1567 | */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1568 | int zfcp_fsf_close_port(struct zfcp_erp_action *erp_action) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1569 | { |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 1570 | struct qdio_buffer_element *sbale; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1571 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1572 | struct zfcp_fsf_req *req; |
| 1573 | int retval = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1574 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1575 | spin_lock_bh(&qdio->req_q_lock); |
| 1576 | if (zfcp_fsf_req_sbal_get(qdio)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1577 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1578 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1579 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, |
| 1580 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1581 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1582 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1583 | retval = PTR_ERR(req); |
| 1584 | goto out; |
| 1585 | } |
| 1586 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1587 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1588 | sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1589 | sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; |
| 1590 | sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; |
| 1591 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1592 | req->handler = zfcp_fsf_close_port_handler; |
| 1593 | req->data = erp_action->port; |
| 1594 | req->erp_action = erp_action; |
| 1595 | req->qtcb->header.port_handle = erp_action->port->handle; |
| 1596 | erp_action->fsf_req = req; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1597 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1598 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1599 | retval = zfcp_fsf_req_send(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1600 | if (retval) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1601 | zfcp_fsf_req_free(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1602 | erp_action->fsf_req = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1603 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1604 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1605 | spin_unlock_bh(&qdio->req_q_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1606 | return retval; |
| 1607 | } |
| 1608 | |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1609 | static void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req) |
| 1610 | { |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1611 | struct zfcp_fc_wka_port *wka_port = req->data; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1612 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 1613 | |
| 1614 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) { |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1615 | wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1616 | goto out; |
| 1617 | } |
| 1618 | |
| 1619 | switch (header->fsf_status) { |
| 1620 | case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED: |
| 1621 | dev_warn(&req->adapter->ccw_device->dev, |
| 1622 | "Opening WKA port 0x%x failed\n", wka_port->d_id); |
Christof Schmitt | dceab65 | 2009-05-15 13:18:18 +0200 | [diff] [blame] | 1623 | /* fall through */ |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1624 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 1625 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Christof Schmitt | dceab65 | 2009-05-15 13:18:18 +0200 | [diff] [blame] | 1626 | /* fall through */ |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1627 | case FSF_ACCESS_DENIED: |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1628 | wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1629 | break; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1630 | case FSF_GOOD: |
| 1631 | wka_port->handle = header->port_handle; |
Swen Schillig | 27f492c | 2009-07-13 15:06:13 +0200 | [diff] [blame] | 1632 | /* fall through */ |
| 1633 | case FSF_PORT_ALREADY_OPEN: |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1634 | wka_port->status = ZFCP_FC_WKA_PORT_ONLINE; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1635 | } |
| 1636 | out: |
| 1637 | wake_up(&wka_port->completion_wq); |
| 1638 | } |
| 1639 | |
| 1640 | /** |
| 1641 | * zfcp_fsf_open_wka_port - create and send open wka-port request |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1642 | * @wka_port: pointer to struct zfcp_fc_wka_port |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1643 | * Returns: 0 on success, error otherwise |
| 1644 | */ |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1645 | 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] | 1646 | { |
| 1647 | struct qdio_buffer_element *sbale; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1648 | struct zfcp_qdio *qdio = wka_port->adapter->qdio; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1649 | struct zfcp_fsf_req *req; |
| 1650 | int retval = -EIO; |
| 1651 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1652 | spin_lock_bh(&qdio->req_q_lock); |
| 1653 | if (zfcp_fsf_req_sbal_get(qdio)) |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1654 | goto out; |
| 1655 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1656 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_PORT_WITH_DID, |
| 1657 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1658 | |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1659 | if (unlikely(IS_ERR(req))) { |
| 1660 | retval = PTR_ERR(req); |
| 1661 | goto out; |
| 1662 | } |
| 1663 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1664 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1665 | sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1666 | sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; |
| 1667 | sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; |
| 1668 | |
| 1669 | req->handler = zfcp_fsf_open_wka_port_handler; |
Christof Schmitt | 800c0ca | 2009-11-24 16:54:12 +0100 | [diff] [blame] | 1670 | hton24(req->qtcb->bottom.support.d_id, wka_port->d_id); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1671 | req->data = wka_port; |
| 1672 | |
| 1673 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
| 1674 | retval = zfcp_fsf_req_send(req); |
| 1675 | if (retval) |
| 1676 | zfcp_fsf_req_free(req); |
| 1677 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1678 | spin_unlock_bh(&qdio->req_q_lock); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1679 | return retval; |
| 1680 | } |
| 1681 | |
| 1682 | static void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req) |
| 1683 | { |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1684 | struct zfcp_fc_wka_port *wka_port = req->data; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1685 | |
| 1686 | if (req->qtcb->header.fsf_status == FSF_PORT_HANDLE_NOT_VALID) { |
| 1687 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1688 | zfcp_erp_adapter_reopen(wka_port->adapter, 0, "fscwph1", req); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1689 | } |
| 1690 | |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1691 | wka_port->status = ZFCP_FC_WKA_PORT_OFFLINE; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1692 | wake_up(&wka_port->completion_wq); |
| 1693 | } |
| 1694 | |
| 1695 | /** |
| 1696 | * zfcp_fsf_close_wka_port - create and send close wka port request |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1697 | * @wka_port: WKA port to open |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1698 | * Returns: 0 on success, error otherwise |
| 1699 | */ |
Christof Schmitt | bd0072e | 2009-11-24 16:54:11 +0100 | [diff] [blame] | 1700 | 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] | 1701 | { |
| 1702 | struct qdio_buffer_element *sbale; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1703 | struct zfcp_qdio *qdio = wka_port->adapter->qdio; |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1704 | struct zfcp_fsf_req *req; |
| 1705 | int retval = -EIO; |
| 1706 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1707 | spin_lock_bh(&qdio->req_q_lock); |
| 1708 | if (zfcp_fsf_req_sbal_get(qdio)) |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1709 | goto out; |
| 1710 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1711 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PORT, |
| 1712 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1713 | |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1714 | if (unlikely(IS_ERR(req))) { |
| 1715 | retval = PTR_ERR(req); |
| 1716 | goto out; |
| 1717 | } |
| 1718 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1719 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1720 | sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1721 | sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; |
| 1722 | sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; |
| 1723 | |
| 1724 | req->handler = zfcp_fsf_close_wka_port_handler; |
| 1725 | req->data = wka_port; |
| 1726 | req->qtcb->header.port_handle = wka_port->handle; |
| 1727 | |
| 1728 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
| 1729 | retval = zfcp_fsf_req_send(req); |
| 1730 | if (retval) |
| 1731 | zfcp_fsf_req_free(req); |
| 1732 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1733 | spin_unlock_bh(&qdio->req_q_lock); |
Swen Schillig | 5ab944f | 2008-10-01 12:42:17 +0200 | [diff] [blame] | 1734 | return retval; |
| 1735 | } |
| 1736 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1737 | 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] | 1738 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1739 | struct zfcp_port *port = req->data; |
| 1740 | struct fsf_qtcb_header *header = &req->qtcb->header; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1741 | struct zfcp_unit *unit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1742 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1743 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Christof Schmitt | a5b11dd | 2009-03-02 13:08:54 +0100 | [diff] [blame] | 1744 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1745 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1746 | switch (header->fsf_status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1747 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1748 | zfcp_erp_adapter_reopen(port->adapter, 0, "fscpph1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1749 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
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: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1752 | zfcp_fsf_access_denied_port(req, port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1753 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1754 | case FSF_PORT_BOXED: |
Christof Schmitt | 5c815d1 | 2008-03-10 16:18:54 +0100 | [diff] [blame] | 1755 | /* can't use generic zfcp_erp_modify_port_status because |
| 1756 | * ZFCP_STATUS_COMMON_OPEN must not be reset for the port */ |
| 1757 | atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); |
Swen Schillig | ecf0c77 | 2009-11-24 16:53:58 +0100 | [diff] [blame] | 1758 | read_lock(&port->unit_list_lock); |
| 1759 | list_for_each_entry(unit, &port->unit_list, list) |
Christof Schmitt | 5c815d1 | 2008-03-10 16:18:54 +0100 | [diff] [blame] | 1760 | atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, |
| 1761 | &unit->status); |
Swen Schillig | ecf0c77 | 2009-11-24 16:53:58 +0100 | [diff] [blame] | 1762 | read_unlock(&port->unit_list_lock); |
Swen Schillig | dfb3cf0 | 2009-07-13 15:06:02 +0200 | [diff] [blame] | 1763 | zfcp_erp_port_boxed(port, "fscpph2", req); |
| 1764 | req->status |= ZFCP_STATUS_FSFREQ_ERROR | |
| 1765 | ZFCP_STATUS_FSFREQ_RETRY; |
| 1766 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1767 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1768 | case FSF_ADAPTER_STATUS_AVAILABLE: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1769 | switch (header->fsf_status_qual.word[0]) { |
| 1770 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1771 | /* fall through */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1772 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1773 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1774 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1775 | } |
| 1776 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1777 | case FSF_GOOD: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1778 | /* can't use generic zfcp_erp_modify_port_status because |
| 1779 | * ZFCP_STATUS_COMMON_OPEN must not be reset for the port |
| 1780 | */ |
| 1781 | atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status); |
Swen Schillig | ecf0c77 | 2009-11-24 16:53:58 +0100 | [diff] [blame] | 1782 | read_lock(&port->unit_list_lock); |
| 1783 | list_for_each_entry(unit, &port->unit_list, list) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1784 | atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, |
| 1785 | &unit->status); |
Swen Schillig | ecf0c77 | 2009-11-24 16:53:58 +0100 | [diff] [blame] | 1786 | read_unlock(&port->unit_list_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1787 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1788 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1789 | } |
| 1790 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1791 | /** |
| 1792 | * zfcp_fsf_close_physical_port - close physical port |
| 1793 | * @erp_action: pointer to struct zfcp_erp_action |
| 1794 | * Returns: 0 on success |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1795 | */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1796 | int zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1797 | { |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 1798 | struct qdio_buffer_element *sbale; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1799 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1800 | struct zfcp_fsf_req *req; |
| 1801 | int retval = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1802 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1803 | spin_lock_bh(&qdio->req_q_lock); |
| 1804 | if (zfcp_fsf_req_sbal_get(qdio)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1805 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1806 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1807 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_PHYSICAL_PORT, |
| 1808 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1809 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1810 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1811 | retval = PTR_ERR(req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1812 | goto out; |
| 1813 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1814 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1815 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1816 | sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1817 | sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; |
| 1818 | sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; |
| 1819 | |
| 1820 | req->data = erp_action->port; |
| 1821 | req->qtcb->header.port_handle = erp_action->port->handle; |
| 1822 | req->erp_action = erp_action; |
| 1823 | req->handler = zfcp_fsf_close_physical_port_handler; |
| 1824 | erp_action->fsf_req = req; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1825 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 1826 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1827 | retval = zfcp_fsf_req_send(req); |
| 1828 | if (retval) { |
| 1829 | zfcp_fsf_req_free(req); |
| 1830 | erp_action->fsf_req = NULL; |
| 1831 | } |
| 1832 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1833 | spin_unlock_bh(&qdio->req_q_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1834 | return retval; |
| 1835 | } |
| 1836 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1837 | static void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1838 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1839 | struct zfcp_adapter *adapter = req->adapter; |
| 1840 | struct zfcp_unit *unit = req->data; |
| 1841 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 1842 | struct fsf_qtcb_bottom_support *bottom = &req->qtcb->bottom.support; |
| 1843 | struct fsf_queue_designator *queue_designator = |
| 1844 | &header->fsf_status_qual.fsf_queue_designator; |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 1845 | int exclusive, readwrite; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1846 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1847 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 1848 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1849 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1850 | atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED | |
Heiko Carstens | b64ddf9 | 2007-05-08 11:19:57 +0200 | [diff] [blame] | 1851 | ZFCP_STATUS_COMMON_ACCESS_BOXED | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1852 | ZFCP_STATUS_UNIT_SHARED | |
| 1853 | ZFCP_STATUS_UNIT_READONLY, |
| 1854 | &unit->status); |
| 1855 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1856 | switch (header->fsf_status) { |
| 1857 | |
| 1858 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1859 | zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fsouh_1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1860 | /* fall through */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1861 | case FSF_LUN_ALREADY_OPEN: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1862 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1863 | case FSF_ACCESS_DENIED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1864 | zfcp_fsf_access_denied_unit(req, unit); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1865 | atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 1866 | atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1867 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1868 | case FSF_PORT_BOXED: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1869 | zfcp_erp_port_boxed(unit->port, "fsouh_2", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1870 | req->status |= ZFCP_STATUS_FSFREQ_ERROR | |
| 1871 | ZFCP_STATUS_FSFREQ_RETRY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1872 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1873 | case FSF_LUN_SHARING_VIOLATION: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1874 | if (header->fsf_status_qual.word[0]) |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 1875 | dev_warn(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 1876 | "LUN 0x%Lx on port 0x%Lx is already in " |
| 1877 | "use by CSS%d, MIF Image ID %x\n", |
Swen Schillig | 7ba58c9 | 2008-10-01 12:42:18 +0200 | [diff] [blame] | 1878 | (unsigned long long)unit->fcp_lun, |
| 1879 | (unsigned long long)unit->port->wwpn, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 1880 | queue_designator->cssid, |
| 1881 | queue_designator->hla); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1882 | else |
Christof Schmitt | 553448f | 2008-06-10 18:20:58 +0200 | [diff] [blame] | 1883 | zfcp_act_eval_err(adapter, |
| 1884 | header->fsf_status_qual.word[2]); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1885 | zfcp_erp_unit_access_denied(unit, "fsouh_3", req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1886 | atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status); |
| 1887 | atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1888 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1889 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1890 | case FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1891 | dev_warn(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 1892 | "No handle is available for LUN " |
| 1893 | "0x%016Lx on port 0x%016Lx\n", |
Swen Schillig | 7ba58c9 | 2008-10-01 12:42:18 +0200 | [diff] [blame] | 1894 | (unsigned long long)unit->fcp_lun, |
| 1895 | (unsigned long long)unit->port->wwpn); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1896 | zfcp_erp_unit_failed(unit, "fsouh_4", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1897 | /* fall through */ |
| 1898 | case FSF_INVALID_COMMAND_OPTION: |
| 1899 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1900 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1901 | case FSF_ADAPTER_STATUS_AVAILABLE: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1902 | switch (header->fsf_status_qual.word[0]) { |
| 1903 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Swen Schillig | 6f53a2d | 2009-08-18 15:43:23 +0200 | [diff] [blame] | 1904 | zfcp_fc_test_link(unit->port); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1905 | /* fall through */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1906 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1907 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1908 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1909 | } |
| 1910 | break; |
| 1911 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1912 | case FSF_GOOD: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1913 | unit->handle = header->lun_handle; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1914 | atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 1915 | |
| 1916 | if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE) && |
| 1917 | (adapter->adapter_features & FSF_FEATURE_LUN_SHARING) && |
Christof Schmitt | 6fcf41d | 2009-05-15 13:18:21 +0200 | [diff] [blame] | 1918 | !zfcp_ccw_priv_sch(adapter)) { |
Maxim Shchetynin | aef4a98 | 2005-09-13 21:51:16 +0200 | [diff] [blame] | 1919 | exclusive = (bottom->lun_access_info & |
| 1920 | FSF_UNIT_ACCESS_EXCLUSIVE); |
| 1921 | readwrite = (bottom->lun_access_info & |
| 1922 | FSF_UNIT_ACCESS_OUTBOUND_TRANSFER); |
| 1923 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1924 | if (!exclusive) |
| 1925 | atomic_set_mask(ZFCP_STATUS_UNIT_SHARED, |
| 1926 | &unit->status); |
| 1927 | |
| 1928 | if (!readwrite) { |
| 1929 | atomic_set_mask(ZFCP_STATUS_UNIT_READONLY, |
| 1930 | &unit->status); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1931 | dev_info(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 1932 | "SCSI device at LUN 0x%016Lx on port " |
| 1933 | "0x%016Lx opened read-only\n", |
Swen Schillig | 7ba58c9 | 2008-10-01 12:42:18 +0200 | [diff] [blame] | 1934 | (unsigned long long)unit->fcp_lun, |
| 1935 | (unsigned long long)unit->port->wwpn); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1936 | } |
| 1937 | |
| 1938 | if (exclusive && !readwrite) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1939 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 1940 | "Exclusive read-only access not " |
| 1941 | "supported (unit 0x%016Lx, " |
| 1942 | "port 0x%016Lx)\n", |
Swen Schillig | 7ba58c9 | 2008-10-01 12:42:18 +0200 | [diff] [blame] | 1943 | (unsigned long long)unit->fcp_lun, |
| 1944 | (unsigned long long)unit->port->wwpn); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1945 | zfcp_erp_unit_failed(unit, "fsouh_5", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1946 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1947 | zfcp_erp_unit_shutdown(unit, 0, "fsouh_6", req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1948 | } else if (!exclusive && readwrite) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1949 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 1950 | "Shared read-write access not " |
| 1951 | "supported (unit 0x%016Lx, port " |
Christof Schmitt | 27c3f0a | 2008-12-19 16:56:52 +0100 | [diff] [blame] | 1952 | "0x%016Lx)\n", |
Swen Schillig | 7ba58c9 | 2008-10-01 12:42:18 +0200 | [diff] [blame] | 1953 | (unsigned long long)unit->fcp_lun, |
| 1954 | (unsigned long long)unit->port->wwpn); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1955 | zfcp_erp_unit_failed(unit, "fsouh_7", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1956 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 1957 | zfcp_erp_unit_shutdown(unit, 0, "fsouh_8", req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1958 | } |
| 1959 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1960 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1961 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1962 | } |
| 1963 | |
| 1964 | /** |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1965 | * zfcp_fsf_open_unit - open unit |
| 1966 | * @erp_action: pointer to struct zfcp_erp_action |
| 1967 | * Returns: 0 on success, error otherwise |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1968 | */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1969 | int zfcp_fsf_open_unit(struct zfcp_erp_action *erp_action) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1970 | { |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 1971 | struct qdio_buffer_element *sbale; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1972 | struct zfcp_adapter *adapter = erp_action->adapter; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1973 | struct zfcp_qdio *qdio = adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1974 | struct zfcp_fsf_req *req; |
| 1975 | int retval = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1976 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1977 | spin_lock_bh(&qdio->req_q_lock); |
| 1978 | if (zfcp_fsf_req_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1979 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1980 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1981 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_OPEN_LUN, |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 1982 | adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1983 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 1984 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1985 | retval = PTR_ERR(req); |
| 1986 | goto out; |
Christof Schmitt | ba17242 | 2007-12-20 12:30:26 +0100 | [diff] [blame] | 1987 | } |
| 1988 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 1989 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 1990 | sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1991 | sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; |
| 1992 | sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1993 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 1994 | req->qtcb->header.port_handle = erp_action->port->handle; |
| 1995 | req->qtcb->bottom.support.fcp_lun = erp_action->unit->fcp_lun; |
| 1996 | req->handler = zfcp_fsf_open_unit_handler; |
| 1997 | req->data = erp_action->unit; |
| 1998 | req->erp_action = erp_action; |
| 1999 | erp_action->fsf_req = req; |
Andreas Herrmann | 059c97d | 2005-09-13 21:47:52 +0200 | [diff] [blame] | 2000 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2001 | if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE)) |
| 2002 | req->qtcb->bottom.support.option = FSF_OPEN_LUN_SUPPRESS_BOXING; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2003 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 2004 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2005 | retval = zfcp_fsf_req_send(req); |
| 2006 | if (retval) { |
| 2007 | zfcp_fsf_req_free(req); |
| 2008 | erp_action->fsf_req = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2009 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2010 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2011 | spin_unlock_bh(&qdio->req_q_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2012 | return retval; |
| 2013 | } |
| 2014 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2015 | static void zfcp_fsf_close_unit_handler(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2016 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2017 | struct zfcp_unit *unit = req->data; |
| 2018 | |
| 2019 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 2020 | return; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2021 | |
| 2022 | switch (req->qtcb->header.fsf_status) { |
| 2023 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 2024 | zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fscuh_1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2025 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2026 | break; |
| 2027 | case FSF_LUN_HANDLE_NOT_VALID: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 2028 | zfcp_erp_port_reopen(unit->port, 0, "fscuh_2", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2029 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2030 | break; |
| 2031 | case FSF_PORT_BOXED: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 2032 | zfcp_erp_port_boxed(unit->port, "fscuh_3", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2033 | req->status |= ZFCP_STATUS_FSFREQ_ERROR | |
| 2034 | ZFCP_STATUS_FSFREQ_RETRY; |
| 2035 | break; |
| 2036 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 2037 | switch (req->qtcb->header.fsf_status_qual.word[0]) { |
| 2038 | case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE: |
Swen Schillig | 6f53a2d | 2009-08-18 15:43:23 +0200 | [diff] [blame] | 2039 | zfcp_fc_test_link(unit->port); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2040 | /* fall through */ |
| 2041 | case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED: |
| 2042 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2043 | break; |
| 2044 | } |
| 2045 | break; |
| 2046 | case FSF_GOOD: |
| 2047 | atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status); |
| 2048 | break; |
| 2049 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2050 | } |
| 2051 | |
| 2052 | /** |
| 2053 | * zfcp_fsf_close_unit - close zfcp unit |
| 2054 | * @erp_action: pointer to struct zfcp_unit |
| 2055 | * Returns: 0 on success, error otherwise |
| 2056 | */ |
| 2057 | int zfcp_fsf_close_unit(struct zfcp_erp_action *erp_action) |
| 2058 | { |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 2059 | struct qdio_buffer_element *sbale; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2060 | struct zfcp_qdio *qdio = erp_action->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2061 | struct zfcp_fsf_req *req; |
| 2062 | int retval = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2063 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2064 | spin_lock_bh(&qdio->req_q_lock); |
| 2065 | if (zfcp_fsf_req_sbal_get(qdio)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2066 | goto out; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2067 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2068 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_CLOSE_LUN, |
| 2069 | qdio->adapter->pool.erp_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2070 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 2071 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2072 | retval = PTR_ERR(req); |
| 2073 | goto out; |
| 2074 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2075 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2076 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2077 | sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2078 | sbale[0].flags |= SBAL_FLAGS0_TYPE_READ; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2079 | sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; |
| 2080 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2081 | req->qtcb->header.port_handle = erp_action->port->handle; |
| 2082 | req->qtcb->header.lun_handle = erp_action->unit->handle; |
| 2083 | req->handler = zfcp_fsf_close_unit_handler; |
| 2084 | req->data = erp_action->unit; |
| 2085 | req->erp_action = erp_action; |
| 2086 | erp_action->fsf_req = req; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2087 | |
Christof Schmitt | 287ac01 | 2008-07-02 10:56:40 +0200 | [diff] [blame] | 2088 | zfcp_fsf_start_erp_timer(req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2089 | retval = zfcp_fsf_req_send(req); |
| 2090 | if (retval) { |
| 2091 | zfcp_fsf_req_free(req); |
| 2092 | erp_action->fsf_req = NULL; |
| 2093 | } |
| 2094 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2095 | spin_unlock_bh(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2096 | return retval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2097 | } |
| 2098 | |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 2099 | static void zfcp_fsf_update_lat(struct fsf_latency_record *lat_rec, u32 lat) |
| 2100 | { |
| 2101 | lat_rec->sum += lat; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2102 | lat_rec->min = min(lat_rec->min, lat); |
| 2103 | lat_rec->max = max(lat_rec->max, lat); |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 2104 | } |
| 2105 | |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 2106 | 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] | 2107 | { |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 2108 | struct fsf_qual_latency_info *lat_in; |
| 2109 | struct latency_cont *lat = NULL; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2110 | struct zfcp_unit *unit = req->unit; |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 2111 | struct zfcp_blk_drv_data blktrc; |
| 2112 | int ticks = req->adapter->timer_ticks; |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 2113 | |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 2114 | lat_in = &req->qtcb->prefix.prot_status_qual.latency_info; |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 2115 | |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 2116 | blktrc.flags = 0; |
| 2117 | blktrc.magic = ZFCP_BLK_DRV_DATA_MAGIC; |
| 2118 | if (req->status & ZFCP_STATUS_FSFREQ_ERROR) |
| 2119 | blktrc.flags |= ZFCP_BLK_REQ_ERROR; |
| 2120 | blktrc.inb_usage = req->queue_req.qdio_inb_usage; |
| 2121 | blktrc.outb_usage = req->queue_req.qdio_outb_usage; |
| 2122 | |
| 2123 | if (req->adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA) { |
| 2124 | blktrc.flags |= ZFCP_BLK_LAT_VALID; |
| 2125 | blktrc.channel_lat = lat_in->channel_lat * ticks; |
| 2126 | blktrc.fabric_lat = lat_in->fabric_lat * ticks; |
| 2127 | |
| 2128 | switch (req->qtcb->bottom.io.data_direction) { |
| 2129 | case FSF_DATADIR_READ: |
| 2130 | lat = &unit->latencies.read; |
| 2131 | break; |
| 2132 | case FSF_DATADIR_WRITE: |
| 2133 | lat = &unit->latencies.write; |
| 2134 | break; |
| 2135 | case FSF_DATADIR_CMND: |
| 2136 | lat = &unit->latencies.cmd; |
| 2137 | break; |
| 2138 | } |
| 2139 | |
| 2140 | if (lat) { |
| 2141 | spin_lock(&unit->latencies.lock); |
| 2142 | zfcp_fsf_update_lat(&lat->channel, lat_in->channel_lat); |
| 2143 | zfcp_fsf_update_lat(&lat->fabric, lat_in->fabric_lat); |
| 2144 | lat->counter++; |
| 2145 | spin_unlock(&unit->latencies.lock); |
| 2146 | } |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 2147 | } |
| 2148 | |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 2149 | blk_add_driver_data(scsi->request->q, scsi->request, &blktrc, |
| 2150 | sizeof(blktrc)); |
Christof Schmitt | c961585 | 2008-05-06 11:00:05 +0200 | [diff] [blame] | 2151 | } |
| 2152 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2153 | static void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2154 | { |
Swen Schillig | 0ac55aa | 2008-11-26 18:07:39 +0100 | [diff] [blame] | 2155 | struct scsi_cmnd *scpnt; |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2156 | struct fcp_resp_with_ext *fcp_rsp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2157 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2158 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2159 | read_lock_irqsave(&req->adapter->abort_lock, flags); |
| 2160 | |
Swen Schillig | 0ac55aa | 2008-11-26 18:07:39 +0100 | [diff] [blame] | 2161 | scpnt = req->data; |
| 2162 | if (unlikely(!scpnt)) { |
| 2163 | read_unlock_irqrestore(&req->adapter->abort_lock, flags); |
| 2164 | return; |
| 2165 | } |
| 2166 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2167 | if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ABORTED)) { |
Martin Petermann | feac6a0 | 2008-07-02 10:56:35 +0200 | [diff] [blame] | 2168 | set_host_byte(scpnt, DID_SOFT_ERROR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2169 | goto skip_fsfstatus; |
| 2170 | } |
| 2171 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2172 | if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) { |
Martin Petermann | feac6a0 | 2008-07-02 10:56:35 +0200 | [diff] [blame] | 2173 | set_host_byte(scpnt, DID_ERROR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2174 | goto skip_fsfstatus; |
| 2175 | } |
| 2176 | |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2177 | fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; |
| 2178 | zfcp_fc_eval_fcp_rsp(fcp_rsp, scpnt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2179 | |
Christof Schmitt | d9742b4 | 2009-11-24 16:54:03 +0100 | [diff] [blame] | 2180 | zfcp_fsf_req_trace(req, scpnt); |
Stefan Raspl | 0997f1c | 2008-10-16 08:23:39 +0200 | [diff] [blame] | 2181 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2182 | skip_fsfstatus: |
Maxim Shchetynin | 8a36e45 | 2005-09-13 21:50:38 +0200 | [diff] [blame] | 2183 | if (scpnt->result != 0) |
Swen Schillig | 5771710 | 2009-08-18 15:43:21 +0200 | [diff] [blame] | 2184 | zfcp_dbf_scsi_result("erro", 3, req->adapter->dbf, scpnt, req); |
Maxim Shchetynin | 8a36e45 | 2005-09-13 21:50:38 +0200 | [diff] [blame] | 2185 | else if (scpnt->retries > 0) |
Swen Schillig | 5771710 | 2009-08-18 15:43:21 +0200 | [diff] [blame] | 2186 | zfcp_dbf_scsi_result("retr", 4, req->adapter->dbf, scpnt, req); |
Maxim Shchetynin | 8a36e45 | 2005-09-13 21:50:38 +0200 | [diff] [blame] | 2187 | else |
Swen Schillig | 5771710 | 2009-08-18 15:43:21 +0200 | [diff] [blame] | 2188 | zfcp_dbf_scsi_result("norm", 6, req->adapter->dbf, scpnt, req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2189 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2190 | scpnt->host_scribble = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2191 | (scpnt->scsi_done) (scpnt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2192 | /* |
| 2193 | * We must hold this lock until scsi_done has been called. |
| 2194 | * Otherwise we may call scsi_done after abort regarding this |
| 2195 | * command has completed. |
| 2196 | * Note: scsi_done must not block! |
| 2197 | */ |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2198 | read_unlock_irqrestore(&req->adapter->abort_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2199 | } |
| 2200 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2201 | static void zfcp_fsf_send_fcp_ctm_handler(struct zfcp_fsf_req *req) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2202 | { |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2203 | struct fcp_resp_with_ext *fcp_rsp; |
| 2204 | struct fcp_resp_rsp_info *rsp_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2205 | |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2206 | fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp; |
| 2207 | rsp_info = (struct fcp_resp_rsp_info *) &fcp_rsp[1]; |
| 2208 | |
| 2209 | if ((rsp_info->rsp_code != FCP_TMF_CMPL) || |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2210 | (req->status & ZFCP_STATUS_FSFREQ_ERROR)) |
| 2211 | req->status |= ZFCP_STATUS_FSFREQ_TMFUNCFAILED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2212 | } |
| 2213 | |
| 2214 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2215 | static void zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *req) |
| 2216 | { |
| 2217 | struct zfcp_unit *unit; |
| 2218 | struct fsf_qtcb_header *header = &req->qtcb->header; |
| 2219 | |
| 2220 | if (unlikely(req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)) |
| 2221 | unit = req->data; |
| 2222 | else |
| 2223 | unit = req->unit; |
| 2224 | |
| 2225 | if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR)) |
| 2226 | goto skip_fsfstatus; |
| 2227 | |
| 2228 | switch (header->fsf_status) { |
| 2229 | case FSF_HANDLE_MISMATCH: |
| 2230 | case FSF_PORT_HANDLE_NOT_VALID: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 2231 | zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fssfch1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2232 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2233 | break; |
| 2234 | case FSF_FCPLUN_NOT_VALID: |
| 2235 | case FSF_LUN_HANDLE_NOT_VALID: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 2236 | zfcp_erp_port_reopen(unit->port, 0, "fssfch2", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2237 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2238 | break; |
| 2239 | case FSF_SERVICE_CLASS_NOT_SUPPORTED: |
| 2240 | zfcp_fsf_class_not_supp(req); |
| 2241 | break; |
| 2242 | case FSF_ACCESS_DENIED: |
| 2243 | zfcp_fsf_access_denied_unit(req, unit); |
| 2244 | break; |
| 2245 | case FSF_DIRECTION_INDICATOR_NOT_VALID: |
| 2246 | dev_err(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 2247 | "Incorrect direction %d, unit 0x%016Lx on port " |
| 2248 | "0x%016Lx closed\n", |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2249 | req->qtcb->bottom.io.data_direction, |
Swen Schillig | 7ba58c9 | 2008-10-01 12:42:18 +0200 | [diff] [blame] | 2250 | (unsigned long long)unit->fcp_lun, |
| 2251 | (unsigned long long)unit->port->wwpn); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 2252 | zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch3", |
| 2253 | req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2254 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2255 | break; |
| 2256 | case FSF_CMND_LENGTH_NOT_VALID: |
| 2257 | dev_err(&req->adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 2258 | "Incorrect CDB length %d, unit 0x%016Lx on " |
| 2259 | "port 0x%016Lx closed\n", |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2260 | req->qtcb->bottom.io.fcp_cmnd_length, |
Swen Schillig | 7ba58c9 | 2008-10-01 12:42:18 +0200 | [diff] [blame] | 2261 | (unsigned long long)unit->fcp_lun, |
| 2262 | (unsigned long long)unit->port->wwpn); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 2263 | zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch4", |
| 2264 | req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2265 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2266 | break; |
| 2267 | case FSF_PORT_BOXED: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 2268 | zfcp_erp_port_boxed(unit->port, "fssfch5", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2269 | req->status |= ZFCP_STATUS_FSFREQ_ERROR | |
| 2270 | ZFCP_STATUS_FSFREQ_RETRY; |
| 2271 | break; |
| 2272 | case FSF_LUN_BOXED: |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 2273 | zfcp_erp_unit_boxed(unit, "fssfch6", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2274 | req->status |= ZFCP_STATUS_FSFREQ_ERROR | |
| 2275 | ZFCP_STATUS_FSFREQ_RETRY; |
| 2276 | break; |
| 2277 | case FSF_ADAPTER_STATUS_AVAILABLE: |
| 2278 | if (header->fsf_status_qual.word[0] == |
| 2279 | FSF_SQ_INVOKE_LINK_TEST_PROCEDURE) |
Swen Schillig | 6f53a2d | 2009-08-18 15:43:23 +0200 | [diff] [blame] | 2280 | zfcp_fc_test_link(unit->port); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2281 | req->status |= ZFCP_STATUS_FSFREQ_ERROR; |
| 2282 | break; |
| 2283 | } |
| 2284 | skip_fsfstatus: |
| 2285 | if (req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT) |
| 2286 | zfcp_fsf_send_fcp_ctm_handler(req); |
| 2287 | else { |
| 2288 | zfcp_fsf_send_fcp_command_task_handler(req); |
| 2289 | req->unit = NULL; |
Swen Schillig | f3450c7 | 2009-11-24 16:53:59 +0100 | [diff] [blame] | 2290 | put_device(&unit->sysfs_device); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2291 | } |
| 2292 | } |
| 2293 | |
| 2294 | /** |
| 2295 | * zfcp_fsf_send_fcp_command_task - initiate an FCP command (for a SCSI command) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2296 | * @unit: unit where command is sent to |
| 2297 | * @scsi_cmnd: scsi command to be sent |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2298 | */ |
Christof Schmitt | 63caf36 | 2009-03-02 13:09:00 +0100 | [diff] [blame] | 2299 | int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit, |
| 2300 | struct scsi_cmnd *scsi_cmnd) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2301 | { |
| 2302 | struct zfcp_fsf_req *req; |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2303 | struct fcp_cmnd *fcp_cmnd; |
Christof Schmitt | bc90c86 | 2009-05-15 13:18:17 +0200 | [diff] [blame] | 2304 | unsigned int sbtype = SBAL_FLAGS0_TYPE_READ; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2305 | int real_bytes, retval = -EIO; |
Christof Schmitt | 63caf36 | 2009-03-02 13:09:00 +0100 | [diff] [blame] | 2306 | struct zfcp_adapter *adapter = unit->port->adapter; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2307 | struct zfcp_qdio *qdio = adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2308 | |
| 2309 | if (unlikely(!(atomic_read(&unit->status) & |
| 2310 | ZFCP_STATUS_COMMON_UNBLOCKED))) |
| 2311 | return -EBUSY; |
| 2312 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2313 | spin_lock(&qdio->req_q_lock); |
| 2314 | if (atomic_read(&qdio->req_q.count) <= 0) { |
| 2315 | atomic_inc(&qdio->req_q_full); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2316 | goto out; |
Christof Schmitt | 8fdf30d | 2009-03-02 13:09:01 +0100 | [diff] [blame] | 2317 | } |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2318 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2319 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, |
Swen Schillig | a4623c4 | 2009-08-18 15:43:15 +0200 | [diff] [blame] | 2320 | adapter->pool.scsi_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2321 | |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 2322 | if (IS_ERR(req)) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2323 | retval = PTR_ERR(req); |
| 2324 | goto out; |
| 2325 | } |
| 2326 | |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2327 | req->status |= ZFCP_STATUS_FSFREQ_CLEANUP; |
Swen Schillig | f3450c7 | 2009-11-24 16:53:59 +0100 | [diff] [blame] | 2328 | get_device(&unit->sysfs_device); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2329 | req->unit = unit; |
| 2330 | req->data = scsi_cmnd; |
| 2331 | req->handler = zfcp_fsf_send_fcp_command_handler; |
| 2332 | req->qtcb->header.lun_handle = unit->handle; |
| 2333 | req->qtcb->header.port_handle = unit->port->handle; |
| 2334 | req->qtcb->bottom.io.service_class = FSF_CLASS_3; |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2335 | req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2336 | |
| 2337 | scsi_cmnd->host_scribble = (unsigned char *) req->req_id; |
| 2338 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2339 | /* |
| 2340 | * set depending on data direction: |
| 2341 | * data direction bits in SBALE (SB Type) |
| 2342 | * data direction bits in QTCB |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2343 | */ |
| 2344 | switch (scsi_cmnd->sc_data_direction) { |
| 2345 | case DMA_NONE: |
| 2346 | req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2347 | break; |
| 2348 | case DMA_FROM_DEVICE: |
| 2349 | req->qtcb->bottom.io.data_direction = FSF_DATADIR_READ; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2350 | break; |
| 2351 | case DMA_TO_DEVICE: |
| 2352 | req->qtcb->bottom.io.data_direction = FSF_DATADIR_WRITE; |
| 2353 | sbtype = SBAL_FLAGS0_TYPE_WRITE; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2354 | break; |
| 2355 | case DMA_BIDIRECTIONAL: |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2356 | goto failed_scsi_cmnd; |
| 2357 | } |
| 2358 | |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2359 | fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; |
| 2360 | zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2361 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2362 | real_bytes = zfcp_qdio_sbals_from_sg(qdio, &req->queue_req, sbtype, |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2363 | scsi_sglist(scsi_cmnd), |
| 2364 | FSF_MAX_SBALS_PER_REQ); |
| 2365 | if (unlikely(real_bytes < 0)) { |
Swen Schillig | 42428f7 | 2009-08-18 15:43:18 +0200 | [diff] [blame] | 2366 | if (req->queue_req.sbal_number >= FSF_MAX_SBALS_PER_REQ) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2367 | dev_err(&adapter->ccw_device->dev, |
Christof Schmitt | ff3b24f | 2008-10-01 12:42:15 +0200 | [diff] [blame] | 2368 | "Oversize data package, unit 0x%016Lx " |
| 2369 | "on port 0x%016Lx closed\n", |
Swen Schillig | 7ba58c9 | 2008-10-01 12:42:18 +0200 | [diff] [blame] | 2370 | (unsigned long long)unit->fcp_lun, |
| 2371 | (unsigned long long)unit->port->wwpn); |
Swen Schillig | 5ffd51a | 2009-03-02 13:09:04 +0100 | [diff] [blame] | 2372 | zfcp_erp_unit_shutdown(unit, 0, "fssfct1", req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2373 | retval = -EINVAL; |
| 2374 | } |
| 2375 | goto failed_scsi_cmnd; |
| 2376 | } |
| 2377 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2378 | retval = zfcp_fsf_req_send(req); |
| 2379 | if (unlikely(retval)) |
| 2380 | goto failed_scsi_cmnd; |
| 2381 | |
| 2382 | goto out; |
| 2383 | |
| 2384 | failed_scsi_cmnd: |
Swen Schillig | f3450c7 | 2009-11-24 16:53:59 +0100 | [diff] [blame] | 2385 | put_device(&unit->sysfs_device); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2386 | zfcp_fsf_req_free(req); |
| 2387 | scsi_cmnd->host_scribble = NULL; |
| 2388 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2389 | spin_unlock(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2390 | return retval; |
| 2391 | } |
| 2392 | |
| 2393 | /** |
| 2394 | * zfcp_fsf_send_fcp_ctm - send SCSI task management command |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2395 | * @unit: pointer to struct zfcp_unit |
| 2396 | * @tm_flags: unsigned byte for task management flags |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2397 | * Returns: on success pointer to struct fsf_req, NULL otherwise |
| 2398 | */ |
Christof Schmitt | 63caf36 | 2009-03-02 13:09:00 +0100 | [diff] [blame] | 2399 | struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *unit, u8 tm_flags) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2400 | { |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 2401 | struct qdio_buffer_element *sbale; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2402 | struct zfcp_fsf_req *req = NULL; |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2403 | struct fcp_cmnd *fcp_cmnd; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2404 | struct zfcp_qdio *qdio = unit->port->adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2405 | |
| 2406 | if (unlikely(!(atomic_read(&unit->status) & |
| 2407 | ZFCP_STATUS_COMMON_UNBLOCKED))) |
| 2408 | return NULL; |
| 2409 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2410 | spin_lock_bh(&qdio->req_q_lock); |
| 2411 | if (zfcp_fsf_req_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2412 | goto out; |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2413 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2414 | req = zfcp_fsf_req_create(qdio, FSF_QTCB_FCP_CMND, |
| 2415 | qdio->adapter->pool.scsi_req); |
Swen Schillig | 09a46c6 | 2009-08-18 15:43:16 +0200 | [diff] [blame] | 2416 | |
Swen Schillig | 633528c | 2008-11-26 18:07:37 +0100 | [diff] [blame] | 2417 | if (IS_ERR(req)) { |
| 2418 | req = NULL; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2419 | goto out; |
Swen Schillig | 633528c | 2008-11-26 18:07:37 +0100 | [diff] [blame] | 2420 | } |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2421 | |
| 2422 | req->status |= ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT; |
| 2423 | req->data = unit; |
| 2424 | req->handler = zfcp_fsf_send_fcp_command_handler; |
| 2425 | req->qtcb->header.lun_handle = unit->handle; |
| 2426 | req->qtcb->header.port_handle = unit->port->handle; |
| 2427 | req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND; |
| 2428 | req->qtcb->bottom.io.service_class = FSF_CLASS_3; |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2429 | req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2430 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2431 | sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2432 | sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE; |
| 2433 | sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY; |
| 2434 | |
Christof Schmitt | 4318e08 | 2009-11-24 16:54:08 +0100 | [diff] [blame] | 2435 | fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; |
| 2436 | zfcp_fc_fcp_tm(fcp_cmnd, unit->device, tm_flags); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2437 | |
| 2438 | zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT); |
| 2439 | if (!zfcp_fsf_req_send(req)) |
| 2440 | goto out; |
| 2441 | |
| 2442 | zfcp_fsf_req_free(req); |
| 2443 | req = NULL; |
| 2444 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2445 | spin_unlock_bh(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2446 | return req; |
| 2447 | } |
| 2448 | |
| 2449 | static void zfcp_fsf_control_file_handler(struct zfcp_fsf_req *req) |
| 2450 | { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2451 | } |
| 2452 | |
| 2453 | /** |
| 2454 | * zfcp_fsf_control_file - control file upload/download |
| 2455 | * @adapter: pointer to struct zfcp_adapter |
| 2456 | * @fsf_cfdc: pointer to struct zfcp_fsf_cfdc |
| 2457 | * Returns: on success pointer to struct zfcp_fsf_req, NULL otherwise |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2458 | */ |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2459 | struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter, |
| 2460 | struct zfcp_fsf_cfdc *fsf_cfdc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2461 | { |
Swen Schillig | 44cc76f | 2008-10-01 12:42:16 +0200 | [diff] [blame] | 2462 | struct qdio_buffer_element *sbale; |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2463 | struct zfcp_qdio *qdio = adapter->qdio; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2464 | struct zfcp_fsf_req *req = NULL; |
| 2465 | struct fsf_qtcb_bottom_support *bottom; |
| 2466 | int direction, retval = -EIO, bytes; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2467 | |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2468 | if (!(adapter->adapter_features & FSF_FEATURE_CFDC)) |
| 2469 | return ERR_PTR(-EOPNOTSUPP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2470 | |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2471 | switch (fsf_cfdc->command) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2472 | case FSF_QTCB_DOWNLOAD_CONTROL_FILE: |
| 2473 | direction = SBAL_FLAGS0_TYPE_WRITE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2474 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2475 | case FSF_QTCB_UPLOAD_CONTROL_FILE: |
| 2476 | direction = SBAL_FLAGS0_TYPE_READ; |
| 2477 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2478 | default: |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2479 | return ERR_PTR(-EINVAL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2480 | } |
| 2481 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2482 | spin_lock_bh(&qdio->req_q_lock); |
| 2483 | if (zfcp_fsf_req_sbal_get(qdio)) |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2484 | goto out; |
| 2485 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2486 | req = zfcp_fsf_req_create(qdio, fsf_cfdc->command, NULL); |
Hirofumi Nakagawa | 025270f | 2008-08-21 13:43:37 +0200 | [diff] [blame] | 2487 | if (IS_ERR(req)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2488 | retval = -EPERM; |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2489 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2490 | } |
| 2491 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2492 | req->handler = zfcp_fsf_control_file_handler; |
| 2493 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2494 | sbale = zfcp_qdio_sbale_req(qdio, &req->queue_req); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2495 | sbale[0].flags |= direction; |
| 2496 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2497 | bottom = &req->qtcb->bottom.support; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2498 | bottom->operation_subtype = FSF_CFDC_OPERATION_SUBTYPE; |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2499 | bottom->option = fsf_cfdc->option; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2500 | |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2501 | bytes = zfcp_qdio_sbals_from_sg(qdio, &req->queue_req, |
| 2502 | direction, fsf_cfdc->sg, |
| 2503 | FSF_MAX_SBALS_PER_REQ); |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2504 | if (bytes != ZFCP_CFDC_MAX_SIZE) { |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2505 | zfcp_fsf_req_free(req); |
| 2506 | goto out; |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2507 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2508 | |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2509 | zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT); |
| 2510 | retval = zfcp_fsf_req_send(req); |
| 2511 | out: |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2512 | spin_unlock_bh(&qdio->req_q_lock); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2513 | |
| 2514 | if (!retval) { |
Swen Schillig | 058b864 | 2009-08-18 15:43:14 +0200 | [diff] [blame] | 2515 | wait_for_completion(&req->completion); |
Swen Schillig | c41f8cb | 2008-07-02 10:56:39 +0200 | [diff] [blame] | 2516 | return req; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2517 | } |
Christof Schmitt | 45633fd | 2008-06-10 18:20:55 +0200 | [diff] [blame] | 2518 | return ERR_PTR(retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2519 | } |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2520 | |
| 2521 | /** |
| 2522 | * zfcp_fsf_reqid_check - validate req_id contained in SBAL returned by QDIO |
| 2523 | * @adapter: pointer to struct zfcp_adapter |
| 2524 | * @sbal_idx: response queue index of SBAL to be processed |
| 2525 | */ |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2526 | void zfcp_fsf_reqid_check(struct zfcp_qdio *qdio, int sbal_idx) |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2527 | { |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2528 | struct zfcp_adapter *adapter = qdio->adapter; |
| 2529 | struct qdio_buffer *sbal = qdio->resp_q.sbal[sbal_idx]; |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2530 | struct qdio_buffer_element *sbale; |
| 2531 | struct zfcp_fsf_req *fsf_req; |
| 2532 | unsigned long flags, req_id; |
| 2533 | int idx; |
| 2534 | |
| 2535 | for (idx = 0; idx < QDIO_MAX_ELEMENTS_PER_BUFFER; idx++) { |
| 2536 | |
| 2537 | sbale = &sbal->element[idx]; |
| 2538 | req_id = (unsigned long) sbale->addr; |
| 2539 | spin_lock_irqsave(&adapter->req_list_lock, flags); |
| 2540 | fsf_req = zfcp_reqlist_find(adapter, req_id); |
| 2541 | |
| 2542 | if (!fsf_req) |
| 2543 | /* |
| 2544 | * Unknown request means that we have potentially memory |
| 2545 | * corruption and must stop the machine immediately. |
| 2546 | */ |
| 2547 | panic("error: unknown req_id (%lx) on adapter %s.\n", |
| 2548 | req_id, dev_name(&adapter->ccw_device->dev)); |
| 2549 | |
| 2550 | list_del(&fsf_req->list); |
| 2551 | spin_unlock_irqrestore(&adapter->req_list_lock, flags); |
| 2552 | |
Swen Schillig | 42428f7 | 2009-08-18 15:43:18 +0200 | [diff] [blame] | 2553 | fsf_req->queue_req.sbal_response = sbal_idx; |
| 2554 | fsf_req->queue_req.qdio_inb_usage = |
Swen Schillig | 564e1c8 | 2009-08-18 15:43:19 +0200 | [diff] [blame] | 2555 | atomic_read(&qdio->resp_q.count); |
Swen Schillig | bd63eaf | 2009-08-18 15:43:13 +0200 | [diff] [blame] | 2556 | zfcp_fsf_req_complete(fsf_req); |
| 2557 | |
| 2558 | if (likely(sbale->flags & SBAL_FLAGS_LAST_ENTRY)) |
| 2559 | break; |
| 2560 | } |
| 2561 | } |