diff options
author | James Bottomley <jejb@titanic.(none)> | 2005-06-17 18:42:23 -0500 |
---|---|---|
committer | James Bottomley <jejb@titanic.(none)> | 2005-06-17 18:42:23 -0500 |
commit | 3237ee78fc00f786d5f5aec6f9310b0e39069f15 (patch) | |
tree | 4c94e70ab846ffcb8bb5715fb3c8d8473358a323 /drivers/s390 | |
parent | 9ee1c939d1cb936b1f98e8d81aeffab57bae46ab (diff) | |
parent | df0ae2497ddefd72a87f3a3b34ff32455d7d4ae0 (diff) |
merge by hand (fix up qla_os.c merge error)
Diffstat (limited to 'drivers/s390')
-rw-r--r-- | drivers/s390/scsi/zfcp_aux.c | 37 | ||||
-rw-r--r-- | drivers/s390/scsi/zfcp_def.h | 25 | ||||
-rw-r--r-- | drivers/s390/scsi/zfcp_erp.c | 121 | ||||
-rw-r--r-- | drivers/s390/scsi/zfcp_ext.h | 4 | ||||
-rw-r--r-- | drivers/s390/scsi/zfcp_fsf.c | 324 | ||||
-rw-r--r-- | drivers/s390/scsi/zfcp_qdio.c | 68 | ||||
-rw-r--r-- | drivers/s390/scsi/zfcp_scsi.c | 24 |
7 files changed, 188 insertions, 415 deletions
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c index 68d151aaa47..e17b4d58a9f 100644 --- a/drivers/s390/scsi/zfcp_aux.c +++ b/drivers/s390/scsi/zfcp_aux.c @@ -97,11 +97,6 @@ MODULE_PARM_DESC(loglevel, "FC ERP QDIO CIO Config FSF SCSI Other, " "levels: 0=none 1=normal 2=devel 3=trace"); -#ifdef ZFCP_PRINT_FLAGS -u32 flags_dump = 0; -module_param(flags_dump, uint, 0); -#endif - /****************************************************************/ /************** Functions without logging ***********************/ /****************************************************************/ @@ -223,13 +218,20 @@ zfcp_in_els_dbf_event(struct zfcp_adapter *adapter, const char *text, * Parse "device=..." parameter string. */ static int __init -zfcp_device_setup(char *str) +zfcp_device_setup(char *devstr) { - char *tmp; + char *tmp, *str; + size_t len; - if (!str) + if (!devstr) return 0; + len = strlen(devstr) + 1; + str = (char *) kmalloc(len, GFP_KERNEL); + if (!str) + goto err_out; + memcpy(str, devstr, len); + tmp = strchr(str, ','); if (!tmp) goto err_out; @@ -246,10 +248,12 @@ zfcp_device_setup(char *str) zfcp_data.init_fcp_lun = simple_strtoull(tmp, &tmp, 0); if (*tmp != '\0') goto err_out; + kfree(str); return 1; err_out: ZFCP_LOG_NORMAL("Parse error for device parameter string %s\n", str); + kfree(str); return 0; } @@ -525,7 +529,7 @@ zfcp_cfdc_dev_ioctl(struct file *file, unsigned int command, out: if (fsf_req != NULL) - zfcp_fsf_req_cleanup(fsf_req); + zfcp_fsf_req_free(fsf_req); if ((adapter != NULL) && (retval != -ENXIO)) zfcp_adapter_put(adapter); @@ -1154,7 +1158,7 @@ zfcp_adapter_enqueue(struct ccw_device *ccw_device) INIT_LIST_HEAD(&adapter->port_remove_lh); /* initialize list of fsf requests */ - rwlock_init(&adapter->fsf_req_list_lock); + spin_lock_init(&adapter->fsf_req_list_lock); INIT_LIST_HEAD(&adapter->fsf_req_list_head); /* initialize abort lock */ @@ -1239,9 +1243,9 @@ zfcp_adapter_dequeue(struct zfcp_adapter *adapter) zfcp_sysfs_adapter_remove_files(&adapter->ccw_device->dev); dev_set_drvdata(&adapter->ccw_device->dev, NULL); /* sanity check: no pending FSF requests */ - read_lock_irqsave(&adapter->fsf_req_list_lock, flags); + spin_lock_irqsave(&adapter->fsf_req_list_lock, flags); retval = !list_empty(&adapter->fsf_req_list_head); - read_unlock_irqrestore(&adapter->fsf_req_list_lock, flags); + spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags); if (retval) { ZFCP_LOG_NORMAL("bug: adapter %s (%p) still in use, " "%i requests outstanding\n", @@ -1483,19 +1487,15 @@ zfcp_fsf_incoming_els_rscn(struct zfcp_adapter *adapter, fcp_rscn_element++; switch (fcp_rscn_element->addr_format) { case ZFCP_PORT_ADDRESS: - ZFCP_LOG_FLAGS(1, "ZFCP_PORT_ADDRESS\n"); range_mask = ZFCP_PORTS_RANGE_PORT; break; case ZFCP_AREA_ADDRESS: - ZFCP_LOG_FLAGS(1, "ZFCP_AREA_ADDRESS\n"); range_mask = ZFCP_PORTS_RANGE_AREA; break; case ZFCP_DOMAIN_ADDRESS: - ZFCP_LOG_FLAGS(1, "ZFCP_DOMAIN_ADDRESS\n"); range_mask = ZFCP_PORTS_RANGE_DOMAIN; break; case ZFCP_FABRIC_ADDRESS: - ZFCP_LOG_FLAGS(1, "ZFCP_FABRIC_ADDRESS\n"); range_mask = ZFCP_PORTS_RANGE_FABRIC; break; default: @@ -1762,7 +1762,10 @@ static void zfcp_ns_gid_pn_handler(unsigned long data) ct_iu_req = zfcp_sg_to_address(ct->req); ct_iu_resp = zfcp_sg_to_address(ct->resp); - if ((ct->status != 0) || zfcp_check_ct_response(&ct_iu_resp->header)) { + if (ct->status != 0) + goto failed; + + if (zfcp_check_ct_response(&ct_iu_resp->header)) { /* FIXME: do we need some specific erp entry points */ atomic_set_mask(ZFCP_STATUS_PORT_INVALID_WWPN, &port->status); goto failed; diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h index c5daf372f85..4103b5be768 100644 --- a/drivers/s390/scsi/zfcp_def.h +++ b/drivers/s390/scsi/zfcp_def.h @@ -62,9 +62,6 @@ #include <linux/syscalls.h> #include <linux/ioctl.h> -/************************ DEBUG FLAGS *****************************************/ - -#define ZFCP_PRINT_FLAGS /********************* GENERAL DEFINES *********************************/ @@ -152,8 +149,10 @@ typedef u32 scsi_lun_t; #define FSF_QTCB_UNSOLICITED_STATUS 0x6305 #define ZFCP_STATUS_READ_FAILED_THRESHOLD 3 #define ZFCP_STATUS_READS_RECOM FSF_STATUS_READS_RECOM -#define ZFCP_EXCHANGE_CONFIG_DATA_RETRIES 6 -#define ZFCP_EXCHANGE_CONFIG_DATA_SLEEP 50 + +/* Do 1st retry in 1 second, then double the timeout for each following retry */ +#define ZFCP_EXCHANGE_CONFIG_DATA_FIRST_SLEEP 100 +#define ZFCP_EXCHANGE_CONFIG_DATA_RETRIES 7 /* timeout value for "default timer" for fsf requests */ #define ZFCP_FSF_REQUEST_TIMEOUT (60*HZ); @@ -472,17 +471,6 @@ do { \ ZFCP_LOG(ZFCP_LOG_LEVEL_TRACE, fmt , ##args) #endif -#ifndef ZFCP_PRINT_FLAGS -# define ZFCP_LOG_FLAGS(level, fmt, args...) -#else -extern u32 flags_dump; -# define ZFCP_LOG_FLAGS(level, fmt, args...) \ -do { \ - if (level <= flags_dump) \ - _ZFCP_LOG(fmt, ##args); \ -} while (0) -#endif - /*************** ADAPTER/PORT/UNIT AND FSF_REQ STATUS FLAGS ******************/ /* @@ -502,6 +490,7 @@ do { \ #define ZFCP_STATUS_COMMON_CLOSING 0x02000000 #define ZFCP_STATUS_COMMON_ERP_INUSE 0x01000000 #define ZFCP_STATUS_COMMON_ACCESS_DENIED 0x00800000 +#define ZFCP_STATUS_COMMON_ACCESS_BOXED 0x00400000 /* adapter status */ #define ZFCP_STATUS_ADAPTER_QDIOUP 0x00000002 @@ -763,6 +752,7 @@ typedef void (*zfcp_send_els_handler_t)(unsigned long); /** * struct zfcp_send_els - used to pass parameters to function zfcp_fsf_send_els * @adapter: adapter where request is sent from + * @port: port where ELS is destinated (port reference count has to be increased) * @d_id: destiniation id of port where request is sent to * @req: scatter-gather list for request * @resp: scatter-gather list for response @@ -777,6 +767,7 @@ typedef void (*zfcp_send_els_handler_t)(unsigned long); */ struct zfcp_send_els { struct zfcp_adapter *adapter; + struct zfcp_port *port; fc_id_t d_id; struct scatterlist *req; struct scatterlist *resp; @@ -871,7 +862,7 @@ struct zfcp_adapter { u32 ports; /* number of remote ports */ struct timer_list scsi_er_timer; /* SCSI err recovery watch */ struct list_head fsf_req_list_head; /* head of FSF req list */ - rwlock_t fsf_req_list_lock; /* lock for ops on list of + spinlock_t fsf_req_list_lock; /* lock for ops on list of FSF requests */ atomic_t fsf_reqs_active; /* # active FSF reqs */ struct zfcp_qdio_queue request_queue; /* request queue */ diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c index 53ebc1cdfe2..0cf31f7d1c0 100644 --- a/drivers/s390/scsi/zfcp_erp.c +++ b/drivers/s390/scsi/zfcp_erp.c @@ -35,7 +35,7 @@ #include "zfcp_ext.h" -static int zfcp_erp_adisc(struct zfcp_adapter *, fc_id_t); +static int zfcp_erp_adisc(struct zfcp_port *); static void zfcp_erp_adisc_handler(unsigned long); static int zfcp_erp_adapter_reopen_internal(struct zfcp_adapter *, int); @@ -295,12 +295,12 @@ zfcp_erp_unit_shutdown(struct zfcp_unit *unit, int clear_mask) /** * zfcp_erp_adisc - send ADISC ELS command - * @adapter: adapter structure - * @d_id: d_id of port where ADISC is sent to + * @port: port structure */ int -zfcp_erp_adisc(struct zfcp_adapter *adapter, fc_id_t d_id) +zfcp_erp_adisc(struct zfcp_port *port) { + struct zfcp_adapter *adapter = port->adapter; struct zfcp_send_els *send_els; struct zfcp_ls_adisc *adisc; void *address = NULL; @@ -332,7 +332,8 @@ zfcp_erp_adisc(struct zfcp_adapter *adapter, fc_id_t d_id) send_els->req_count = send_els->resp_count = 1; send_els->adapter = adapter; - send_els->d_id = d_id; + send_els->port = port; + send_els->d_id = port->d_id; send_els->handler = zfcp_erp_adisc_handler; send_els->handler_data = (unsigned long) send_els; @@ -350,7 +351,7 @@ zfcp_erp_adisc(struct zfcp_adapter *adapter, fc_id_t d_id) ZFCP_LOG_INFO("ADISC request from s_id 0x%08x to d_id 0x%08x " "(wwpn=0x%016Lx, wwnn=0x%016Lx, " "hard_nport_id=0x%08x, nport_id=0x%08x)\n", - adapter->s_id, d_id, (wwn_t) adisc->wwpn, + adapter->s_id, send_els->d_id, (wwn_t) adisc->wwpn, (wwn_t) adisc->wwnn, adisc->hard_nport_id, adisc->nport_id); @@ -367,7 +368,7 @@ zfcp_erp_adisc(struct zfcp_adapter *adapter, fc_id_t d_id) retval = zfcp_fsf_send_els(send_els); if (retval != 0) { ZFCP_LOG_NORMAL("error: initiation of Send ELS failed for port " - "0x%08x on adapter %s\n", d_id, + "0x%08x on adapter %s\n", send_els->d_id, zfcp_get_busid_by_adapter(adapter)); del_timer(send_els->timer); goto freemem; @@ -411,14 +412,9 @@ zfcp_erp_adisc_handler(unsigned long data) del_timer(send_els->timer); adapter = send_els->adapter; + port = send_els->port; d_id = send_els->d_id; - read_lock(&zfcp_data.config_lock); - port = zfcp_get_port_by_did(send_els->adapter, send_els->d_id); - read_unlock(&zfcp_data.config_lock); - - BUG_ON(port == NULL); - /* request rejected or timed out */ if (send_els->status != 0) { ZFCP_LOG_NORMAL("ELS request rejected/timed out, " @@ -482,7 +478,7 @@ zfcp_test_link(struct zfcp_port *port) int retval; zfcp_port_get(port); - retval = zfcp_erp_adisc(port->adapter, port->d_id); + retval = zfcp_erp_adisc(port); if (retval != 0) { zfcp_port_put(port); ZFCP_LOG_NORMAL("reopen needed for port 0x%016Lx " @@ -895,7 +891,7 @@ zfcp_erp_strategy_check_fsfreq(struct zfcp_erp_action *erp_action) if (erp_action->fsf_req) { /* take lock to ensure that request is not being deleted meanwhile */ - write_lock(&adapter->fsf_req_list_lock); + spin_lock(&adapter->fsf_req_list_lock); /* check whether fsf req does still exist */ list_for_each_entry(fsf_req, &adapter->fsf_req_list_head, list) if (fsf_req == erp_action->fsf_req) @@ -938,7 +934,7 @@ zfcp_erp_strategy_check_fsfreq(struct zfcp_erp_action *erp_action) */ erp_action->fsf_req = NULL; } - write_unlock(&adapter->fsf_req_list_lock); + spin_unlock(&adapter->fsf_req_list_lock); } else debug_text_event(adapter->erp_dbf, 3, "a_ca_noreq"); @@ -2286,12 +2282,12 @@ zfcp_erp_adapter_strategy_open_fsf_xconfig(struct zfcp_erp_action *erp_action) { int retval = ZFCP_ERP_SUCCEEDED; int retries; + int sleep = ZFCP_EXCHANGE_CONFIG_DATA_FIRST_SLEEP; struct zfcp_adapter *adapter = erp_action->adapter; atomic_clear_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, &adapter->status); - retries = ZFCP_EXCHANGE_CONFIG_DATA_RETRIES; - do { + for (retries = ZFCP_EXCHANGE_CONFIG_DATA_RETRIES; retries; retries--) { atomic_clear_mask(ZFCP_STATUS_ADAPTER_HOST_CON_INIT, &adapter->status); ZFCP_LOG_DEBUG("Doing exchange config data\n"); @@ -2329,16 +2325,17 @@ zfcp_erp_adapter_strategy_open_fsf_xconfig(struct zfcp_erp_action *erp_action) zfcp_get_busid_by_adapter(adapter)); break; } - if (atomic_test_mask(ZFCP_STATUS_ADAPTER_HOST_CON_INIT, - &adapter->status)) { - ZFCP_LOG_DEBUG("host connection still initialising... " - "waiting and retrying...\n"); - /* sleep a little bit before retry */ - msleep(jiffies_to_msecs(ZFCP_EXCHANGE_CONFIG_DATA_SLEEP)); - } - } while ((retries--) && - atomic_test_mask(ZFCP_STATUS_ADAPTER_HOST_CON_INIT, - &adapter->status)); + + if (!atomic_test_mask(ZFCP_STATUS_ADAPTER_HOST_CON_INIT, + &adapter->status)) + break; + + ZFCP_LOG_DEBUG("host connection still initialising... " + "waiting and retrying...\n"); + /* sleep a little bit before retry */ + msleep(jiffies_to_msecs(sleep)); + sleep *= 2; + } if (!atomic_test_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, &adapter->status)) { @@ -3485,6 +3482,45 @@ zfcp_erp_action_to_ready(struct zfcp_erp_action *erp_action) } /* + * function: zfcp_erp_port_boxed + * + * purpose: + */ +void +zfcp_erp_port_boxed(struct zfcp_port *port) +{ + struct zfcp_adapter *adapter = port->adapter; + unsigned long flags; + + debug_text_event(adapter->erp_dbf, 3, "p_access_boxed"); + debug_event(adapter->erp_dbf, 3, &port->wwpn, sizeof(wwn_t)); + read_lock_irqsave(&zfcp_data.config_lock, flags); + zfcp_erp_modify_port_status(port, + ZFCP_STATUS_COMMON_ACCESS_BOXED, + ZFCP_SET); + read_unlock_irqrestore(&zfcp_data.config_lock, flags); + zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED); +} + +/* + * function: zfcp_erp_unit_boxed + * + * purpose: + */ +void +zfcp_erp_unit_boxed(struct zfcp_unit *unit) +{ + struct zfcp_adapter *adapter = unit->port->adapter; + + debug_text_event(adapter->erp_dbf, 3, "u_access_boxed"); + debug_event(adapter->erp_dbf, 3, &unit->fcp_lun, sizeof(fcp_lun_t)); + zfcp_erp_modify_unit_status(unit, + ZFCP_STATUS_COMMON_ACCESS_BOXED, + ZFCP_SET); + zfcp_erp_unit_reopen(unit, ZFCP_STATUS_COMMON_ERP_FAILED); +} + +/* * function: zfcp_erp_port_access_denied * * purpose: @@ -3495,11 +3531,13 @@ zfcp_erp_port_access_denied(struct zfcp_port *port) struct zfcp_adapter *adapter = port->adapter; unsigned long flags; - debug_text_event(adapter->erp_dbf, 3, "p_access_block"); + debug_text_event(adapter->erp_dbf, 3, "p_access_denied"); debug_event(adapter->erp_dbf, 3, &port->wwpn, sizeof(wwn_t)); read_lock_irqsave(&zfcp_data.config_lock, flags); - zfcp_erp_modify_port_status(port, ZFCP_STATUS_COMMON_ERP_FAILED | - ZFCP_STATUS_COMMON_ACCESS_DENIED, ZFCP_SET); + zfcp_erp_modify_port_status(port, + ZFCP_STATUS_COMMON_ERP_FAILED | + ZFCP_STATUS_COMMON_ACCESS_DENIED, + ZFCP_SET); read_unlock_irqrestore(&zfcp_data.config_lock, flags); } @@ -3513,10 +3551,12 @@ zfcp_erp_unit_access_denied(struct zfcp_unit *unit) { struct zfcp_adapter *adapter = unit->port->adapter; - debug_text_event(adapter->erp_dbf, 3, "u_access_block"); + debug_text_event(adapter->erp_dbf, 3, "u_access_denied"); debug_event(adapter->erp_dbf, 3, &unit->fcp_lun, sizeof(fcp_lun_t)); - zfcp_erp_modify_unit_status(unit, ZFCP_STATUS_COMMON_ERP_FAILED | - ZFCP_STATUS_COMMON_ACCESS_DENIED, ZFCP_SET); + zfcp_erp_modify_unit_status(unit, + ZFCP_STATUS_COMMON_ERP_FAILED | + ZFCP_STATUS_COMMON_ACCESS_DENIED, + ZFCP_SET); } /* @@ -3530,7 +3570,7 @@ zfcp_erp_adapter_access_changed(struct zfcp_adapter *adapter) struct zfcp_port *port; unsigned long flags; - debug_text_event(adapter->erp_dbf, 3, "a_access_unblock"); + debug_text_event(adapter->erp_dbf, 3, "a_access_recover"); debug_event(adapter->erp_dbf, 3, &adapter->name, 8); read_lock_irqsave(&zfcp_data.config_lock, flags); @@ -3553,10 +3593,12 @@ zfcp_erp_port_access_changed(struct zfcp_port *port) struct zfcp_adapter *adapter = port->adapter; struct zfcp_unit *unit; - debug_text_event(adapter->erp_dbf, 3, "p_access_unblock"); + debug_text_event(adapter->erp_dbf, 3, "p_access_recover"); debug_event(adapter->erp_dbf, 3, &port->wwpn, sizeof(wwn_t)); if (!atomic_test_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED, + &port->status) && + !atomic_test_mask(ZFCP_STATUS_COMMON_ACCESS_BOXED, &port->status)) { if (!atomic_test_mask(ZFCP_STATUS_PORT_WKA, &port->status)) list_for_each_entry(unit, &port->unit_list_head, list) @@ -3583,10 +3625,13 @@ zfcp_erp_unit_access_changed(struct zfcp_unit *unit) { struct zfcp_adapter *adapter = unit->port->adapter; - debug_text_event(adapter->erp_dbf, 3, "u_access_unblock"); + debug_text_event(adapter->erp_dbf, 3, "u_access_recover"); debug_event(adapter->erp_dbf, 3, &unit->fcp_lun, sizeof(fcp_lun_t)); - if (!atomic_test_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED, &unit->status)) + if (!atomic_test_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED, + &unit->status) && + !atomic_test_mask(ZFCP_STATUS_COMMON_ACCESS_BOXED, + &unit->status)) return; ZFCP_LOG_NORMAL("reopen of unit 0x%016Lx on port 0x%016Lx " diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h index d5fd4335207..42df7e57eea 100644 --- a/drivers/s390/scsi/zfcp_ext.h +++ b/drivers/s390/scsi/zfcp_ext.h @@ -116,7 +116,7 @@ extern int zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *, struct timer_list*, int); extern int zfcp_fsf_req_complete(struct zfcp_fsf_req *); extern void zfcp_fsf_incoming_els(struct zfcp_fsf_req *); -extern void zfcp_fsf_req_cleanup(struct zfcp_fsf_req *); +extern void zfcp_fsf_req_free(struct zfcp_fsf_req *); extern struct zfcp_fsf_req *zfcp_fsf_send_fcp_command_task_management( struct zfcp_adapter *, struct zfcp_unit *, u8, int); extern struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command( @@ -171,6 +171,8 @@ extern int zfcp_erp_async_handler(struct zfcp_erp_action *, unsigned long); extern int zfcp_test_link(struct zfcp_port *); +extern void zfcp_erp_port_boxed(struct zfcp_port *); +extern void zfcp_erp_unit_boxed(struct zfcp_unit *); extern void zfcp_erp_port_access_denied(struct zfcp_port *); extern void zfcp_erp_unit_access_denied(struct zfcp_unit *); extern void zfcp_erp_adapter_access_changed(struct zfcp_adapter *); diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index 148b11c822b..0d9f20edc49 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -61,7 +61,6 @@ static int zfcp_fsf_fsfstatus_eval(struct zfcp_fsf_req *); static int zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *); static int zfcp_fsf_req_dispatch(struct zfcp_fsf_req *); static void zfcp_fsf_req_dismiss(struct zfcp_fsf_req *); -static void zfcp_fsf_req_free(struct zfcp_fsf_req *); /* association between FSF command and FSF QTCB type */ static u32 fsf_qtcb_type[] = { @@ -149,13 +148,13 @@ zfcp_fsf_req_alloc(mempool_t *pool, int req_flags) * * locks: none */ -static void +void zfcp_fsf_req_free(struct zfcp_fsf_req *fsf_req) { if (likely(fsf_req->pool != NULL)) mempool_free(fsf_req, fsf_req->pool); - else - kfree(fsf_req); + else + kfree(fsf_req); } /* @@ -170,30 +169,21 @@ zfcp_fsf_req_free(struct zfcp_fsf_req *fsf_req) int zfcp_fsf_req_dismiss_all(struct zfcp_adapter *adapter) { - int retval = 0; struct zfcp_fsf_req *fsf_req, *tmp; + unsigned long flags; + LIST_HEAD(remove_queue); - list_for_each_entry_safe(fsf_req, tmp, &adapter->fsf_req_list_head, - list) - zfcp_fsf_req_dismiss(fsf_req); - /* wait_event_timeout? */ - while (!list_empty(&adapter->fsf_req_list_head)) { - ZFCP_LOG_DEBUG("fsf req list of adapter %s not yet empty\n", - zfcp_get_busid_by_adapter(adapter)); - /* wait for woken intiators to clean up their requests */ - msleep(jiffies_to_msecs(ZFCP_FSFREQ_CLEANUP_TIMEOUT)); - } + spin_lock_irqsave(&adapter->fsf_req_list_lock, flags); + list_splice_init(&adapter->fsf_req_list_head, &remove_queue); + atomic_set(&adapter->fsf_reqs_active, 0); + spin_unlock_irqrestore(&adapter->fsf_req_list_lock, flags); - /* consistency check */ - if (atomic_read(&adapter->fsf_reqs_active)) { - ZFCP_LOG_NORMAL("bug: There are still %d FSF requests pending " - "on adapter %s after cleanup.\n", - atomic_read(&adapter->fsf_reqs_active), - zfcp_get_busid_by_adapter(adapter)); - atomic_set(&adapter->fsf_reqs_active, 0); + list_for_each_entry_safe(fsf_req, tmp, &remove_queue, list) { + list_del(&fsf_req->list); + zfcp_fsf_req_dismiss(fsf_req); } - return retval; + return 0; } /* @@ -226,10 +216,6 @@ zfcp_fsf_req_complete(struct zfcp_fsf_req *fsf_req) { int retval = 0; int cleanup; - struct zfcp_adapter *adapter = fsf_req->adapter; - - /* do some statistics */ - atomic_dec(&adapter->fsf_reqs_active); if (unlikely(fsf_req->fsf_command == FSF_QTCB_UNSOLICITED_STATUS)) { ZFCP_LOG_DEBUG("Status read response received\n"); @@ -260,7 +246,7 @@ zfcp_fsf_req_complete(struct zfcp_fsf_req *fsf_req) * lock must not be held here since it will be * grabed by the called routine, too */ - zfcp_fsf_req_cleanup(fsf_req); + zfcp_fsf_req_free(fsf_req); } else { /* notify initiator waiting for the requests completion */ ZFCP_LOG_TRACE("waking initiator of FSF request %p\n",fsf_req); @@ -346,15 +332,10 @@ zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *fsf_req) switch (fsf_req->qtcb->prefix.prot_status) { case FSF_PROT_GOOD: - ZFCP_LOG_TRACE("FSF_PROT_GOOD\n"); - break; - case FSF_PROT_FSF_STATUS_PRESENTED: - ZFCP_LOG_TRACE("FSF_PROT_FSF_STATUS_PRESENTED\n"); break; case FSF_PROT_QTCB_VERSION_ERROR: - ZFCP_LOG_FLAGS(0, "FSF_PROT_QTCB_VERSION_ERROR\n"); ZFCP_LOG_NORMAL("error: The adapter %s contains " "microcode of version 0x%x, the device driver " "only supports 0x%x. Aborting.\n", @@ -371,7 +352,6 @@ zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *fsf_req) break; case FSF_PROT_SEQ_NUMB_ERROR: - ZFCP_LOG_FLAGS(0, "FSF_PROT_SEQ_NUMB_ERROR\n"); ZFCP_LOG_NORMAL("bug: Sequence number mismatch between " "driver (0x%x) and adapter %s (0x%x). " "Restarting all operations on this adapter.\n", @@ -390,7 +370,6 @@ zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *fsf_req) break; case FSF_PROT_UNSUPP_QTCB_TYPE: - ZFCP_LOG_FLAGS(0, "FSF_PROT_UNSUP_QTCB_TYPE\n"); ZFCP_LOG_NORMAL("error: Packet header type used by the " "device driver is incompatible with " "that used on adapter %s. " @@ -405,7 +384,6 @@ zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *fsf_req) break; case FSF_PROT_HOST_CONNECTION_INITIALIZING: - ZFCP_LOG_FLAGS(1, "FSF_PROT_HOST_CONNECTION_INITIALIZING\n"); zfcp_cmd_dbf_event_fsf("hconinit", fsf_req, &fsf_req->qtcb->prefix.prot_status_qual, sizeof (union fsf_prot_status_qual)); @@ -416,7 +394,6 @@ zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *fsf_req) break; case FSF_PROT_DUPLICATE_REQUEST_ID: - ZFCP_LOG_FLAGS(0, "FSF_PROT_DUPLICATE_REQUEST_IDS\n"); if (fsf_req->qtcb) { ZFCP_LOG_NORMAL("bug: The request identifier 0x%Lx " "to the adapter %s is ambiguous. " @@ -445,7 +422,6 @@ zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *fsf_req) break; case FSF_PROT_LINK_DOWN: - ZFCP_LOG_FLAGS(1, "FSF_PROT_LINK_DOWN\n"); /* * 'test and set' is not atomic here - * it's ok as long as calls to our response queue handler @@ -502,13 +478,11 @@ zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *fsf_req) ZFCP_STATUS_COMMON_ERP_FAILED, &adapter->status); zfcp_erp_adapter_reopen(adapter, 0); - debug_text_event(adapter->erp_dbf, 1, "prot_link_down"); } fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR; break; case FSF_PROT_REEST_QUEUE: - ZFCP_LOG_FLAGS(1, "FSF_PROT_REEST_QUEUE\n"); debug_text_event(adapter->erp_dbf, 1, "prot_reest_queue"); ZFCP_LOG_INFO("The local link to adapter with " "%s was re-plugged. " @@ -528,7 +502,6 @@ zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *fsf_req) break; case FSF_PROT_ERROR_STATE: - ZFCP_LOG_FLAGS(0, "FSF_PROT_ERROR_STATE\n"); ZFCP_LOG_NORMAL("error: The adapter %s " "has entered the error state. " "Restarting all operations on this " @@ -589,7 +562,6 @@ zfcp_fsf_fsfstatus_eval(struct zfcp_fsf_req *fsf_req) /* evaluate FSF Status */ switch (fsf_req->qtcb->header.fsf_status) { case FSF_UNKNOWN_COMMAND: - ZFCP_LOG_FLAGS(0, "FSF_UNKNOWN_COMMAND\n"); ZFCP_LOG_NORMAL("bug: Command issued by the device driver is " "not known by the adapter %s " "Stopping all operations on this adapter. " @@ -606,14 +578,12 @@ zfcp_fsf_fsfstatus_eval(struct zfcp_fsf_req *fsf_req) break; case FSF_FCP_RSP_AVAILABLE: - ZFCP_LOG_FLAGS(2, "FSF_FCP_RSP_AVAILABLE\n"); ZFCP_LOG_DEBUG("FCP Sense data will be presented to the " "SCSI stack.\n"); debug_text_event(fsf_req->adapter->erp_dbf, 3, "fsf_s_rsp"); break; case FSF_ADAPTER_STATUS_AVAILABLE: - ZFCP_LOG_FLAGS(2, "FSF_ADAPTER_STATUS_AVAILABLE\n"); debug_text_event(fsf_req->adapter->erp_dbf, 2, "fsf_s_astatus"); zfcp_fsf_fsfstatus_qual_eval(fsf_req); break; @@ -647,11 +617,9 @@ zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *fsf_req) switch (fsf_req->qtcb->header.fsf_status_qual.word[0]) { case FSF_SQ_FCP_RSP_AVAILABLE: - ZFCP_LOG_FLAGS(2, "FSF_SQ_FCP_RSP_AVAILABLE\n"); debug_text_event(fsf_req->adapter->erp_dbf, 4, "fsf_sq_rsp"); break; case FSF_SQ_RETRY_IF_POSSIBLE: - ZFCP_LOG_FLAGS(2, "FSF_SQ_RETRY_IF_POSSIBLE\n"); /* The SCSI-stack may now issue retries or escalate */ debug_text_event(fsf_req->adapter->erp_dbf, 2, "fsf_sq_retry"); zfcp_cmd_dbf_event_fsf("sqretry", fsf_req, @@ -660,7 +628,6 @@ zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *fsf_req) fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR; break; case FSF_SQ_COMMAND_ABORTED: - ZFCP_LOG_FLAGS(2, "FSF_SQ_COMMAND_ABORTED\n"); /* Carry the aborted state on to upper layer */ debug_text_event(fsf_req->adapter->erp_dbf, 2, "fsf_sq_abort"); zfcp_cmd_dbf_event_fsf("sqabort", fsf_req, @@ -670,7 +637,6 @@ zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *fsf_req) fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR; break; case FSF_SQ_NO_RECOM: - ZFCP_LOG_FLAGS(0, "FSF_SQ_NO_RECOM\n"); debug_text_exception(fsf_req->adapter->erp_dbf, 0, "fsf_sq_no_rec"); ZFCP_LOG_NORMAL("bug: No recommendation could be given for a" @@ -684,7 +650,6 @@ zfcp_fsf_fsfstatus_qual_eval(struct zfcp_fsf_req *fsf_req) fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR; break; case FSF_SQ_ULP_PROGRAMMING_ERROR: - ZFCP_LOG_FLAGS(0, "FSF_SQ_ULP_PROGRAMMING_ERROR\n"); ZFCP_LOG_NORMAL("error: not enough SBALs for data transfer " "(adapter %s)\n", zfcp_get_busid_by_adapter(fsf_req->adapter)); @@ -740,72 +705,58 @@ zfcp_fsf_req_dispatch(struct zfcp_fsf_req *fsf_req) switch (fsf_req->fsf_command) { case FSF_QTCB_FCP_CMND: - ZFCP_LOG_FLAGS(3, "FSF_QTCB_FCP_CMND\n"); zfcp_fsf_send_fcp_command_handler(fsf_req); break; case FSF_QTCB_ABORT_FCP_CMND: - ZFCP_LOG_FLAGS(2, "FSF_QTCB_ABORT_FCP_CMND\n"); zfcp_fsf_abort_fcp_command_handler(fsf_req); break; case FSF_QTCB_SEND_GENERIC: - ZFCP_LOG_FLAGS(2, "FSF_QTCB_SEND_GENERIC\n"); zfcp_fsf_send_ct_handler(fsf_req); break; case FSF_QTCB_OPEN_PORT_WITH_DID: - ZFCP_LOG_FLAGS(2, "FSF_QTCB_OPEN_PORT_WITH_DID\n"); zfcp_fsf_open_port_handler(fsf_req); break; case FSF_QTCB_OPEN_LUN: - ZFCP_LOG_FLAGS(2, "FSF_QTCB_OPEN_LUN\n"); zfcp_fsf_open_unit_handler(fsf_req); break; case FSF_QTCB_CLOSE_LUN: - ZFCP_LOG_FLAGS(2, "FSF_QTCB_CLOSE_LUN\n"); zfcp_fsf_close_unit_handler(fsf_req); break; case FSF_QTCB_CLOSE_PORT: - ZFCP_LOG_FLAGS(2, "FSF_QTCB_CLOSE_PORT\n"); zfcp_fsf_close_port_handler(fsf_req); break; case FSF_QTCB_CLOSE_PHYSICAL_PORT: - ZFCP_LOG_FLAGS(2, "FSF_QTCB_CLOSE_PHYSICAL_PORT\n"); zfcp_fsf_close_physical_port_handler(fsf_req); break; case FSF_QTCB_EXCHANGE_CONFIG_DATA: - ZFCP_LOG_FLAGS(2, "FSF_QTCB_EXCHANGE_CONFIG_DATA\n"); zfcp_fsf_exchange_config_data_handler(fsf_req); break; case FSF_QTCB_EXCHANGE_PORT_DATA: - ZFCP_LOG_FLAGS(2, "FSF_QTCB_EXCHANGE_PORT_DATA\n"); zfcp_fsf_exchange_port_data_handler(fsf_req); break; case FSF_QTCB_SEND_ELS: - ZFCP_LOG_FLAGS(2, "FSF_QTCB_SEND_ELS\n"); zfcp_fsf_send_els_handler(fsf_req); break; case FSF_QTCB_DOWNLOAD_CONTROL_FILE: - ZFCP_LOG_FLAGS(2, "FSF_QTCB_DOWNLOAD_CONTROL_FILE\n"); zfcp_fsf_control_file_handler(fsf_req); break; case FSF_QTCB_UPLOAD_CONTROL_FILE: - ZFCP_LOG_FLAGS(2, "FSF_QTCB_UPLOAD_CONTROL_FILE\n"); zfcp_fsf_control_file_handler(fsf_req); break; default: - ZFCP_LOG_FLAGS(2, "FSF_QTCB_UNKNOWN\n"); fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR; ZFCP_LOG_NORMAL("bug: Command issued by the device driver is " "not supported by the adapter %s\n", @@ -929,13 +880,11 @@ zfcp_fsf_status_read_port_closed(struct zfcp_fsf_req *fsf_req) switch (status_buffer->status_subtype) { case FSF_STATUS_READ_SUB_CLOSE_PHYS_PORT: - ZFCP_LOG_FLAGS(2, "FSF_STATUS_READ_SUB_CLOSE_PHYS_PORT\n"); debug_text_event(adapter->erp_dbf, 3, "unsol_pc_phys:"); zfcp_erp_port_reopen(port, 0); break; case FSF_STATUS_READ_SUB_ERROR_PORT: - ZFCP_LOG_FLAGS(1, "FSF_STATUS_READ_SUB_ERROR_PORT\n"); debug_text_event(adapter->erp_dbf, 1, "unsol_pc_err:"); zfcp_erp_port_shutdown(port, 0); break; @@ -973,14 +922,13 @@ zfcp_fsf_status_read_handler(struct zfcp_fsf_req *fsf_req) if (fsf_req->status & ZFCP_STATUS_FSFREQ_DISMISSED) { mempool_free(status_buffer, adapter->pool.data_status_read); - zfcp_fsf_req_cleanup(fsf_req); + zfcp_fsf_req_free(fsf_req); goto out; } switch (status_buffer->status_type) { case FSF_STATUS_READ_PORT_CLOSED: - ZFCP_LOG_FLAGS(1, "FSF_STATUS_READ_PORT_CLOSED\n"); debug_text_event(adapter->erp_dbf, 3, "unsol_pclosed:"); debug_event(adapter->erp_dbf, 3, &status_buffer->d_id, sizeof (u32)); @@ -988,13 +936,11 @@ zfcp_fsf_status_read_handler(struct zfcp_fsf_req *fsf_req) break; case FSF_STATUS_READ_INCOMING_ELS: - ZFCP_LOG_FLAGS(1, "FSF_STATUS_READ_INCOMING_ELS\n"); debug_text_event(adapter->erp_dbf, 3, "unsol_els:"); zfcp_fsf_incoming_els(fsf_req); break; case FSF_STATUS_READ_SENSE_DATA_AVAIL: - ZFCP_LOG_FLAGS(1, "FSF_STATUS_READ_SENSE_DATA_AVAIL\n"); debug_text_event(adapter->erp_dbf, 3, "unsol_sense:"); ZFCP_LOG_INFO("unsolicited sense data received (adapter %s)\n", zfcp_get_busid_by_adapter(adapter)); @@ -1003,7 +949,6 @@ zfcp_fsf_status_read_handler(struct zfcp_fsf_req *fsf_req) break; case FSF_STATUS_READ_BIT_ERROR_THRESHOLD: - ZFCP_LOG_FLAGS(1, "FSF_STATUS_READ_BIT_ERROR_THRESHOLD\n"); debug_text_event(adapter->erp_dbf, 3, "unsol_bit_err:"); ZFCP_LOG_NORMAL("Bit error threshold data received:\n"); ZFCP_HEX_DUMP(ZFCP_LOG_LEVEL_NORMAL, @@ -1012,7 +957,6 @@ zfcp_fsf_status_read_handler(struct zfcp_fsf_req *fsf_req) break; case FSF_STATUS_READ_LINK_DOWN: - ZFCP_LOG_FLAGS(1, "FSF_STATUS_READ_LINK_DOWN\n"); debug_text_event(adapter->erp_dbf, 0, "unsol_link_down:"); ZFCP_LOG_INFO("Local link to adapter %s is down\n", zfcp_get_busid_by_adapter(adapter)); @@ -1022,7 +966,6 @@ zfcp_fsf_status_read_handler(struct zfcp_fsf_req *fsf_req) break; case FSF_STATUS_READ_LINK_UP: - ZFCP_LOG_FLAGS(1, "FSF_STATUS_READ_LINK_UP\n"); debug_text_event(adapter->erp_dbf, 2, "unsol_link_up:"); ZFCP_LOG_INFO("Local link to adapter %s was replugged. " "Restarting operations on this adapter\n", @@ -1037,7 +980,6 @@ zfcp_fsf_status_read_handler(struct zfcp_fsf_req *fsf_req) break; case FSF_STATUS_READ_CFDC_UPDATED: - ZFCP_LOG_FLAGS(1, "FSF_STATUS_READ_CFDC_UPDATED\n"); debug_text_event(adapter->erp_dbf, 2, "unsol_cfdc_update:"); ZFCP_LOG_INFO("CFDC has been updated on the adapter %s\n", zfcp_get_busid_by_adapter(adapter)); @@ -1045,7 +987,6 @@ zfcp_fsf_status_read_handler(struct zfcp_fsf_req *fsf_req) break; case FSF_STATUS_READ_CFDC_HARDENED: - ZFCP_LOG_FLAGS(1, "FSF_STATUS_READ_CFDC_HARDENED\n"); debug_text_event(adapter->erp_dbf, 2, "unsol_cfdc_harden:"); switch (status_buffer->status_subtype) { case FSF_STATUS_READ_SUB_CFDC_HARDENED_ON_SE: @@ -1078,7 +1019,7 @@ zfcp_fsf_status_read_handler(struct zfcp_fsf_req *fsf_req) break; } mempool_free(status_buffer, adapter->pool.data_status_read); - zfcp_fsf_req_cleanup(fsf_req); + zfcp_fsf_req_free(fsf_req); /* * recycle buffer and start new request repeat until outbound * queue is empty or adapter shutdown is requested @@ -1214,7 +1155,6 @@ zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *new_fsf_req) case FSF_PORT_HANDLE_NOT_VALID: if (status_qual >> 4 != status_qual % 0xf) { - ZFCP_LOG_FLAGS(2, "FSF_PORT_HANDLE_NOT_VALID\n"); debug_text_event(new_fsf_req->adapter->erp_dbf, 3, "fsf_s_phand_nv0"); /* @@ -1223,7 +1163,6 @@ zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *new_fsf_req) * fine. */ } else { - ZFCP_LOG_FLAGS(1, "FSF_PORT_HANDLE_NOT_VALID\n"); ZFCP_LOG_INFO("Temporary port identifier 0x%x for " "port 0x%016Lx on adapter %s invalid. " "This may happen occasionally.\n", @@ -1246,7 +1185,6 @@ zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *new_fsf_req) case FSF_LUN_HANDLE_NOT_VALID: if (status_qual >> 4 != status_qual % 0xf) { /* 2 */ - ZFCP_LOG_FLAGS(0, "FSF_LUN_HANDLE_NOT_VALID\n"); debug_text_event(new_fsf_req->adapter->erp_dbf, 3, "fsf_s_lhand_nv0"); /* @@ -1255,7 +1193,6 @@ zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *new_fsf_req) * This is fine. */ } else { - ZFCP_LOG_FLAGS(1, "FSF_LUN_HANDLE_NOT_VALID\n"); ZFCP_LOG_INFO ("Warning: Temporary LUN identifier 0x%x of LUN " "0x%016Lx on port 0x%016Lx on adapter %s is " @@ -1279,7 +1216,6 @@ zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *new_fsf_req) break; case FSF_FCP_COMMAND_DOES_NOT_EXIST: - ZFCP_LOG_FLAGS(2, "FSF_FCP_COMMAND_DOES_NOT_EXIST\n"); retval = 0; debug_text_event(new_fsf_req->adapter->erp_dbf, 3, "fsf_s_no_exist"); @@ -1287,50 +1223,37 @@ zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *new_fsf_req) break; case FSF_PORT_BOXED: - /* 2 */ - ZFCP_LOG_FLAGS(0, "FSF_PORT_BOXED\n"); ZFCP_LOG_INFO("Remote port 0x%016Lx on adapter %s needs to " "be reopened\n", unit->port->wwpn, zfcp_get_busid_by_unit(unit)); debug_text_event(new_fsf_req->adapter->erp_dbf, 2, "fsf_s_pboxed"); - zfcp_erp_port_reopen(unit->port, 0); + zfcp_erp_port_boxed(unit->port); new_fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR | ZFCP_STATUS_FSFREQ_RETRY; break; case FSF_LUN_BOXED: - ZFCP_LOG_FLAGS(0, "FSF_LUN_BOXED\n"); ZFCP_LOG_INFO( "unit 0x%016Lx on port 0x%016Lx on adapter %s needs " "to be reopened\n", |