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Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6

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* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: (23 commits)
  [SCSI] sd: Avoid sending extended inquiry to legacy devices
  [SCSI] libsas: fix wide port hotplug issues
  [SCSI] libfc: fix a circular locking warning during sending RRQ
  [SCSI] qla4xxx: Remove hiwat code so scsi eh does not get escalated when we can make progress
  [SCSI] qla4xxx: Fix srb lookup in qla4xxx_eh_device_reset
  [SCSI] qla4xxx: Fix Driver Fault Recovery Completion
  [SCSI] qla4xxx: add timeout handler
  [SCSI] qla4xxx: Correct Extended Sense Data Errors
  [SCSI] libiscsi: disable bh in and abort handler.
  [SCSI] zfcp: Fix tracing of request id for abort requests
  [SCSI] zfcp: Fix wka port processing
  [SCSI] zfcp: avoid double notify in lowmem scenario
  [SCSI] zfcp: Add port only once to FC transport class
  [SCSI] zfcp: Recover from stalled outbound queue
  [SCSI] zfcp: Fix erp escalation procedure
  [SCSI] zfcp: Fix logic for physical port close
  [SCSI] zfcp: Use -EIO for SBAL allocation failures
  [SCSI] zfcp: Use unchained mode for small ct and els requests
  [SCSI] zfcp: Use correct flags for zfcp_erp_notify
  [SCSI] zfcp: Return -ENOMEM for allocation failures in zfcp_fsf
  ...
This commit is contained in:
Linus Torvalds 2009-08-04 15:38:10 -07:00
commit 2edb3898b8
18 changed files with 465 additions and 273 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

68
drivers/s390/scsi/zfcp_erp.c
View File

@ -553,40 +553,35 @@ static void _zfcp_erp_unit_reopen_all(struct zfcp_port *port, int clear,
_zfcp_erp_unit_reopen(unit, clear, id, ref);
}
static void zfcp_erp_strategy_followup_actions(struct zfcp_erp_action *act)
static void zfcp_erp_strategy_followup_failed(struct zfcp_erp_action *act)
{
struct zfcp_adapter *adapter = act->adapter;
struct zfcp_port *port = act->port;
struct zfcp_unit *unit = act->unit;
u32 status = act->status;
/* initiate follow-up actions depending on success of finished action */
switch (act->action) {
case ZFCP_ERP_ACTION_REOPEN_ADAPTER:
if (status == ZFCP_ERP_SUCCEEDED)
_zfcp_erp_port_reopen_all(adapter, 0, "ersfa_1", NULL);
else
_zfcp_erp_adapter_reopen(adapter, 0, "ersfa_2", NULL);
_zfcp_erp_adapter_reopen(act->adapter, 0, "ersff_1", NULL);
break;
case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED:
if (status == ZFCP_ERP_SUCCEEDED)
_zfcp_erp_port_reopen(port, 0, "ersfa_3", NULL);
else
_zfcp_erp_adapter_reopen(adapter, 0, "ersfa_4", NULL);
_zfcp_erp_port_forced_reopen(act->port, 0, "ersff_2", NULL);
break;
case ZFCP_ERP_ACTION_REOPEN_PORT:
if (status == ZFCP_ERP_SUCCEEDED)
_zfcp_erp_unit_reopen_all(port, 0, "ersfa_5", NULL);
else
_zfcp_erp_port_forced_reopen(port, 0, "ersfa_6", NULL);
_zfcp_erp_port_reopen(act->port, 0, "ersff_3", NULL);
break;
case ZFCP_ERP_ACTION_REOPEN_UNIT:
if (status != ZFCP_ERP_SUCCEEDED)
_zfcp_erp_port_reopen(unit->port, 0, "ersfa_7", NULL);
_zfcp_erp_unit_reopen(act->unit, 0, "ersff_4", NULL);
break;
}
}
static void zfcp_erp_strategy_followup_success(struct zfcp_erp_action *act)
{
switch (act->action) {
case ZFCP_ERP_ACTION_REOPEN_ADAPTER:
_zfcp_erp_port_reopen_all(act->adapter, 0, "ersfs_1", NULL);
break;
case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED:
_zfcp_erp_port_reopen(act->port, 0, "ersfs_2", NULL);
break;
case ZFCP_ERP_ACTION_REOPEN_PORT:
_zfcp_erp_unit_reopen_all(act->port, 0, "ersfs_3", NULL);
break;
}
}
@ -801,7 +796,7 @@ static int zfcp_erp_port_forced_strategy(struct zfcp_erp_action *erp_action)
return ZFCP_ERP_FAILED;
case ZFCP_ERP_STEP_PHYS_PORT_CLOSING:
if (status & ZFCP_STATUS_PORT_PHYS_OPEN)
if (!(status & ZFCP_STATUS_PORT_PHYS_OPEN))
return ZFCP_ERP_SUCCEEDED;
}
return ZFCP_ERP_FAILED;
@ -853,11 +848,17 @@ void zfcp_erp_port_strategy_open_lookup(struct work_struct *work)
gid_pn_work);
retval = zfcp_fc_ns_gid_pn(&port->erp_action);
if (retval == -ENOMEM)
zfcp_erp_notify(&port->erp_action, ZFCP_ERP_NOMEM);
port->erp_action.step = ZFCP_ERP_STEP_NAMESERVER_LOOKUP;
if (retval)
zfcp_erp_notify(&port->erp_action, ZFCP_ERP_FAILED);
if (!retval) {
port->erp_action.step = ZFCP_ERP_STEP_NAMESERVER_LOOKUP;
goto out;
}
if (retval == -ENOMEM) {
zfcp_erp_notify(&port->erp_action, ZFCP_STATUS_ERP_LOWMEM);
goto out;
}
/* all other error condtions */
zfcp_erp_notify(&port->erp_action, 0);
out:
zfcp_port_put(port);
}
@ -1289,7 +1290,10 @@ static int zfcp_erp_strategy(struct zfcp_erp_action *erp_action)
retval = zfcp_erp_strategy_statechange(erp_action, retval);
if (retval == ZFCP_ERP_EXIT)
goto unlock;
zfcp_erp_strategy_followup_actions(erp_action);
if (retval == ZFCP_ERP_SUCCEEDED)
zfcp_erp_strategy_followup_success(erp_action);
if (retval == ZFCP_ERP_FAILED)
zfcp_erp_strategy_followup_failed(erp_action);
unlock:
write_unlock(&adapter->erp_lock);

8
drivers/s390/scsi/zfcp_fc.c
View File

@ -79,11 +79,9 @@ static int zfcp_wka_port_get(struct zfcp_wka_port *wka_port)
mutex_unlock(&wka_port->mutex);
wait_event_timeout(
wka_port->completion_wq,
wka_port->status == ZFCP_WKA_PORT_ONLINE ||
wka_port->status == ZFCP_WKA_PORT_OFFLINE,
HZ >> 1);
wait_event(wka_port->completion_wq,
wka_port->status == ZFCP_WKA_PORT_ONLINE ||
wka_port->status == ZFCP_WKA_PORT_OFFLINE);
if (wka_port->status == ZFCP_WKA_PORT_ONLINE) {
atomic_inc(&wka_port->refcount);

56
drivers/s390/scsi/zfcp_fsf.c
View File

@ -670,8 +670,11 @@ static int zfcp_fsf_req_sbal_get(struct zfcp_adapter *adapter)
zfcp_fsf_sbal_check(adapter), 5 * HZ);
if (ret > 0)
return 0;
if (!ret)
if (!ret) {
atomic_inc(&adapter->qdio_outb_full);
/* assume hanging outbound queue, try queue recovery */
zfcp_erp_adapter_reopen(adapter, 0, "fsrsg_1", NULL);
}
spin_lock_bh(&adapter->req_q_lock);
return -EIO;
@ -722,7 +725,7 @@ static struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_adapter *adapter,
req = zfcp_fsf_alloc_qtcb(pool);
if (unlikely(!req))
return ERR_PTR(-EIO);
return ERR_PTR(-ENOMEM);
if (adapter->req_no == 0)
adapter->req_no++;
@ -1010,6 +1013,23 @@ skip_fsfstatus:
send_ct->handler(send_ct->handler_data);
}
static void zfcp_fsf_setup_ct_els_unchained(struct qdio_buffer_element *sbale,
struct scatterlist *sg_req,
struct scatterlist *sg_resp)
{
sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE_READ;
sbale[2].addr = sg_virt(sg_req);
sbale[2].length = sg_req->length;
sbale[3].addr = sg_virt(sg_resp);
sbale[3].length = sg_resp->length;
sbale[3].flags |= SBAL_FLAGS_LAST_ENTRY;
}
static int zfcp_fsf_one_sbal(struct scatterlist *sg)
{
return sg_is_last(sg) && sg->length <= PAGE_SIZE;
}
static int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req,
struct scatterlist *sg_req,
struct scatterlist *sg_resp,
@ -1020,30 +1040,30 @@ static int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req,
int bytes;
if (!(feat & FSF_FEATURE_ELS_CT_CHAINED_SBALS)) {
if (sg_req->length > PAGE_SIZE || sg_resp->length > PAGE_SIZE ||
!sg_is_last(sg_req) || !sg_is_last(sg_resp))
if (!zfcp_fsf_one_sbal(sg_req) || !zfcp_fsf_one_sbal(sg_resp))
return -EOPNOTSUPP;
sbale[0].flags |= SBAL_FLAGS0_TYPE_WRITE_READ;
sbale[2].addr = sg_virt(sg_req);
sbale[2].length = sg_req->length;
sbale[3].addr = sg_virt(sg_resp);
sbale[3].length = sg_resp->length;
sbale[3].flags |= SBAL_FLAGS_LAST_ENTRY;
zfcp_fsf_setup_ct_els_unchained(sbale, sg_req, sg_resp);
return 0;
}
/* use single, unchained SBAL if it can hold the request */
if (zfcp_fsf_one_sbal(sg_req) && zfcp_fsf_one_sbal(sg_resp)) {
zfcp_fsf_setup_ct_els_unchained(sbale, sg_req, sg_resp);
return 0;
}
bytes = zfcp_qdio_sbals_from_sg(req, SBAL_FLAGS0_TYPE_WRITE_READ,
sg_req, max_sbals);
if (bytes <= 0)
return -ENOMEM;
return -EIO;
req->qtcb->bottom.support.req_buf_length = bytes;
req->sbale_curr = ZFCP_LAST_SBALE_PER_SBAL;
bytes = zfcp_qdio_sbals_from_sg(req, SBAL_FLAGS0_TYPE_WRITE_READ,
sg_resp, max_sbals);
if (bytes <= 0)
return -ENOMEM;
return -EIO;
req->qtcb->bottom.support.resp_buf_length = bytes;
return 0;
@ -1607,10 +1627,10 @@ static void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req)
case FSF_ACCESS_DENIED:
wka_port->status = ZFCP_WKA_PORT_OFFLINE;
break;
case FSF_PORT_ALREADY_OPEN:
break;
case FSF_GOOD:
wka_port->handle = header->port_handle;
/* fall through */
case FSF_PORT_ALREADY_OPEN:
wka_port->status = ZFCP_WKA_PORT_ONLINE;
}
out:
@ -1731,15 +1751,16 @@ static void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req)
zfcp_fsf_access_denied_port(req, port);
break;
case FSF_PORT_BOXED:
zfcp_erp_port_boxed(port, "fscpph2", req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR |
ZFCP_STATUS_FSFREQ_RETRY;
/* can't use generic zfcp_erp_modify_port_status because
* ZFCP_STATUS_COMMON_OPEN must not be reset for the port */
atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status);
list_for_each_entry(unit, &port->unit_list_head, list)
atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN,
&unit->status);
zfcp_erp_port_boxed(port, "fscpph2", req);
req->status |= ZFCP_STATUS_FSFREQ_ERROR |
ZFCP_STATUS_FSFREQ_RETRY;
break;
case FSF_ADAPTER_STATUS_AVAILABLE:
switch (header->fsf_status_qual.word[0]) {
@ -2541,7 +2562,6 @@ struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter,
bytes = zfcp_qdio_sbals_from_sg(req, direction, fsf_cfdc->sg,
FSF_MAX_SBALS_PER_REQ);
if (bytes != ZFCP_CFDC_MAX_SIZE) {
retval = -ENOMEM;
zfcp_fsf_req_free(req);
goto out;
}

25
drivers/s390/scsi/zfcp_scsi.c
View File

@ -167,20 +167,21 @@ static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt)
struct zfcp_unit *unit = scpnt->device->hostdata;
struct zfcp_fsf_req *old_req, *abrt_req;
unsigned long flags;
unsigned long old_req_id = (unsigned long) scpnt->host_scribble;
unsigned long old_reqid = (unsigned long) scpnt->host_scribble;
int retval = SUCCESS;
int retry = 3;
char *dbf_tag;
/* avoid race condition between late normal completion and abort */
write_lock_irqsave(&adapter->abort_lock, flags);
spin_lock(&adapter->req_list_lock);
old_req = zfcp_reqlist_find(adapter, old_req_id);
old_req = zfcp_reqlist_find(adapter, old_reqid);
spin_unlock(&adapter->req_list_lock);
if (!old_req) {
write_unlock_irqrestore(&adapter->abort_lock, flags);
zfcp_scsi_dbf_event_abort("lte1", adapter, scpnt, NULL,
old_req_id);
old_reqid);
return FAILED; /* completion could be in progress */
}
old_req->data = NULL;
@ -189,7 +190,7 @@ static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt)
write_unlock_irqrestore(&adapter->abort_lock, flags);
while (retry--) {
abrt_req = zfcp_fsf_abort_fcp_command(old_req_id, unit);
abrt_req = zfcp_fsf_abort_fcp_command(old_reqid, unit);
if (abrt_req)
break;
@ -197,7 +198,7 @@ static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt)
if (!(atomic_read(&adapter->status) &
ZFCP_STATUS_COMMON_RUNNING)) {
zfcp_scsi_dbf_event_abort("nres", adapter, scpnt, NULL,
old_req_id);
old_reqid);
return SUCCESS;
}
}
@ -208,13 +209,14 @@ static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt)
abrt_req->status & ZFCP_STATUS_FSFREQ_COMPLETED);
if (abrt_req->status & ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED)
zfcp_scsi_dbf_event_abort("okay", adapter, scpnt, abrt_req, 0);
dbf_tag = "okay";
else if (abrt_req->status & ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED)
zfcp_scsi_dbf_event_abort("lte2", adapter, scpnt, abrt_req, 0);
dbf_tag = "lte2";
else {
zfcp_scsi_dbf_event_abort("fail", adapter, scpnt, abrt_req, 0);
dbf_tag = "fail";
retval = FAILED;
}
zfcp_scsi_dbf_event_abort(dbf_tag, adapter, scpnt, abrt_req, old_reqid);
zfcp_fsf_req_free(abrt_req);
return retval;
}
@ -534,6 +536,9 @@ static void zfcp_scsi_rport_register(struct zfcp_port *port)
struct fc_rport_identifiers ids;
struct fc_rport *rport;
if (port->rport)
return;
ids.node_name = port->wwnn;
ids.port_name = port->wwpn;
ids.port_id = port->d_id;
@ -557,8 +562,10 @@ static void zfcp_scsi_rport_block(struct zfcp_port *port)
{
struct fc_rport *rport = port->rport;
if (rport)
if (rport) {
fc_remote_port_delete(rport);
port->rport = NULL;
}
}
void zfcp_scsi_schedule_rport_register(struct zfcp_port *port)

7
drivers/s390/scsi/zfcp_sysfs.c
View File

@ -494,9 +494,14 @@ static ssize_t zfcp_sysfs_adapter_q_full_show(struct device *dev,
struct Scsi_Host *scsi_host = class_to_shost(dev);
struct zfcp_adapter *adapter =
(struct zfcp_adapter *) scsi_host->hostdata[0];
u64 util;
spin_lock_bh(&adapter->qdio_stat_lock);
util = adapter->req_q_util;
spin_unlock_bh(&adapter->qdio_stat_lock);
return sprintf(buf, "%d %llu\n", atomic_read(&adapter->qdio_outb_full),
(unsigned long long)adapter->req_q_util);
(unsigned long long)util);
}
static DEVICE_ATTR(queue_full, S_IRUGO, zfcp_sysfs_adapter_q_full_show, NULL);

23
drivers/scsi/libfc/fc_exch.c
View File

@ -415,9 +415,9 @@ static void fc_exch_timeout(struct work_struct *work)
e_stat = ep->esb_stat;
if (e_stat & ESB_ST_COMPLETE) {
ep->esb_stat = e_stat & ~ESB_ST_REC_QUAL;
spin_unlock_bh(&ep->ex_lock);
if (e_stat & ESB_ST_REC_QUAL)
fc_exch_rrq(ep);
spin_unlock_bh(&ep->ex_lock);
goto done;
} else {
resp = ep->resp;
@ -1624,14 +1624,14 @@ static void fc_exch_rrq(struct fc_exch *ep)
struct fc_lport *lp;
struct fc_els_rrq *rrq;
struct fc_frame *fp;
struct fc_seq *rrq_sp;
u32 did;
lp = ep->lp;
fp = fc_frame_alloc(lp, sizeof(*rrq));
if (!fp)
return;
goto retry;
rrq = fc_frame_payload_get(fp, sizeof(*rrq));
memset(rrq, 0, sizeof(*rrq));
rrq->rrq_cmd = ELS_RRQ;
@ -1647,13 +1647,20 @@ static void fc_exch_rrq(struct fc_exch *ep)
fc_host_port_id(lp->host), FC_TYPE_ELS,
FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT, 0);
rrq_sp = fc_exch_seq_send(lp, fp, fc_exch_rrq_resp, NULL, ep,
lp->e_d_tov);
if (!rrq_sp) {
ep->esb_stat |= ESB_ST_REC_QUAL;
fc_exch_timer_set_locked(ep, ep->r_a_tov);
if (fc_exch_seq_send(lp, fp, fc_exch_rrq_resp, NULL, ep, lp->e_d_tov))
return;
retry:
spin_lock_bh(&ep->ex_lock);
if (ep->state & (FC_EX_RST_CLEANUP | FC_EX_DONE)) {
spin_unlock_bh(&ep->ex_lock);
/* drop hold for rec qual */
fc_exch_release(ep);
return;
}
ep->esb_stat |= ESB_ST_REC_QUAL;
fc_exch_timer_set_locked(ep, ep->r_a_tov);
spin_unlock_bh(&ep->ex_lock);
}

4
drivers/scsi/libiscsi.c
View File

@ -1974,10 +1974,10 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
* good and have never sent us a successful tmf response
* then sent more data for the cmd.
*/
spin_lock(&session->lock);
spin_lock_bh(&session->lock);
fail_scsi_task(task, DID_ABORT);
conn->tmf_state = TMF_INITIAL;
spin_unlock(&session->lock);
spin_unlock_bh(&session->lock);
iscsi_start_tx(conn);
goto success_unlocked;
case TMF_TIMEDOUT:

147
drivers/scsi/libsas/sas_expander.c
View File

@ -766,6 +766,7 @@ static int sas_ex_join_wide_port(struct domain_device *parent, int phy_id)
if (!memcmp(phy->attached_sas_addr, ephy->attached_sas_addr,
SAS_ADDR_SIZE) && ephy->port) {
sas_port_add_phy(ephy->port, phy->phy);
phy->port = ephy->port;
phy->phy_state = PHY_DEVICE_DISCOVERED;
return 0;
}
@ -945,11 +946,21 @@ static int sas_ex_discover_dev(struct domain_device *dev, int phy_id)
if (ex->ex_phy[i].phy_state == PHY_VACANT ||
ex->ex_phy[i].phy_state == PHY_NOT_PRESENT)
continue;
/*
* Due to races, the phy might not get added to the
* wide port, so we add the phy to the wide port here.
*/
if (SAS_ADDR(ex->ex_phy[i].attached_sas_addr) ==
SAS_ADDR(child->sas_addr))
SAS_ADDR(child->sas_addr)) {
ex->ex_phy[i].phy_state= PHY_DEVICE_DISCOVERED;
res = sas_ex_join_wide_port(dev, i);
if (!res)
SAS_DPRINTK("Attaching ex phy%d to wide port %016llx\n",
i, SAS_ADDR(ex->ex_phy[i].attached_sas_addr));
}
}
res = 0;
}
return res;
@ -1598,7 +1609,7 @@ static int sas_get_phy_attached_sas_addr(struct domain_device *dev,
}
static int sas_find_bcast_phy(struct domain_device *dev, int *phy_id,
int from_phy)
int from_phy, bool update)
{
struct expander_device *ex = &dev->ex_dev;
int res = 0;
@ -1611,7 +1622,9 @@ static int sas_find_bcast_phy(struct domain_device *dev, int *phy_id,
if (res)
goto out;
else if (phy_change_count != ex->ex_phy[i].phy_change_count) {
ex->ex_phy[i].phy_change_count = phy_change_count;
if (update)
ex->ex_phy[i].phy_change_count =
phy_change_count;
*phy_id = i;
return 0;
}
@ -1653,31 +1666,52 @@ out:
kfree(rg_req);
return res;
}
/**
* sas_find_bcast_dev - find the device issue BROADCAST(CHANGE).
* @dev:domain device to be detect.
* @src_dev: the device which originated BROADCAST(CHANGE).
*
* Add self-configuration expander suport. Suppose two expander cascading,
* when the first level expander is self-configuring, hotplug the disks in
* second level expander, BROADCAST(CHANGE) will not only be originated
* in the second level expander, but also be originated in the first level
* expander (see SAS protocol SAS 2r-14, 7.11 for detail), it is to say,
* expander changed count in two level expanders will all increment at least
* once, but the phy which chang count has changed is the source device which
* we concerned.
*/
static int sas_find_bcast_dev(struct domain_device *dev,
struct domain_device **src_dev)
{
struct expander_device *ex = &dev->ex_dev;
int ex_change_count = -1;
int phy_id = -1;
int res;
struct domain_device *ch;
res = sas_get_ex_change_count(dev, &ex_change_count);
if (res)
goto out;
if (ex_change_count != -1 &&
ex_change_count != ex->ex_change_count) {
*src_dev = dev;
ex->ex_change_count = ex_change_count;
} else {
struct domain_device *ch;
list_for_each_entry(ch, &ex->children, siblings) {
if (ch->dev_type == EDGE_DEV ||
ch->dev_type == FANOUT_DEV) {
res = sas_find_bcast_dev(ch, src_dev);
if (src_dev)
return res;
}
if (ex_change_count != -1 && ex_change_count != ex->ex_change_count) {
/* Just detect if this expander phys phy change count changed,
* in order to determine if this expander originate BROADCAST,
* and do not update phy change count field in our structure.
*/
res = sas_find_bcast_phy(dev, &phy_id, 0, false);
if (phy_id != -1) {
*src_dev = dev;
ex->ex_change_count = ex_change_count;
SAS_DPRINTK("Expander phy change count has changed\n");
return res;
} else
SAS_DPRINTK("Expander phys DID NOT change\n");
}
list_for_each_entry(ch, &ex->children, siblings) {
if (ch->dev_type == EDGE_DEV || ch->dev_type == FANOUT_DEV) {
res = sas_find_bcast_dev(ch, src_dev);
if (src_dev)
return res;
}
}
out:
@ -1700,24 +1734,26 @@ static void sas_unregister_ex_tree(struct domain_device *dev)
}
static void sas_unregister_devs_sas_addr(struct domain_device *parent,
int phy_id)
int phy_id, bool last)
{
struct expander_device *ex_dev = &parent->ex_dev;
struct ex_phy *phy = &ex_dev->ex_phy[phy_id];
struct domain_device *child, *n;
list_for_each_entry_safe(child, n, &ex_dev->children, siblings) {
if (SAS_ADDR(child->sas_addr) ==
SAS_ADDR(phy->attached_sas_addr)) {
if (child->dev_type == EDGE_DEV ||
child->dev_type == FANOUT_DEV)
sas_unregister_ex_tree(child);
else
sas_unregister_dev(child);
break;
if (last) {
list_for_each_entry_safe(child, n,
&ex_dev->children, siblings) {
if (SAS_ADDR(child->sas_addr) ==
SAS_ADDR(phy->attached_sas_addr)) {
if (child->dev_type == EDGE_DEV ||
child->dev_type == FANOUT_DEV)
sas_unregister_ex_tree(child);
else
sas_unregister_dev(child);
break;
}
}
sas_disable_routing(parent, phy->attached_sas_addr);
}
sas_disable_routing(parent, phy->attached_sas_addr);
memset(phy->attached_sas_addr, 0, SAS_ADDR_SIZE);
sas_port_delete_phy(phy->port, phy->phy);
if (phy->port->num_phys == 0)
@ -1770,15 +1806,31 @@ static int sas_discover_new(struct domain_device *dev, int phy_id)
{
struct ex_phy *ex_phy = &dev->ex_dev.ex_phy[phy_id];
struct domain_device *child;
int res;
bool found = false;
int res, i;
SAS_DPRINTK("ex %016llx phy%d new device attached\n",
SAS_ADDR(dev->sas_addr), phy_id);
res = sas_ex_phy_discover(dev, phy_id);
if (res)
goto out;
/* to support the wide port inserted */
for (i = 0; i < dev->ex_dev.num_phys; i++) {
struct ex_phy *ex_phy_temp = &dev->ex_dev.ex_phy[i];
if (i == phy_id)
continue;
if (SAS_ADDR(ex_phy_temp->attached_sas_addr) ==
SAS_ADDR(ex_phy->attached_sas_addr)) {
found = true;
break;
}
}
if (found) {
sas_ex_join_wide_port(dev, phy_id);
return 0;
}
res = sas_ex_discover_devices(dev, phy_id);
if (res)
if (!res)
goto out;
list_for_each_entry(child, &dev->ex_dev.children, siblings) {
if (SAS_ADDR(child->sas_addr) ==
@ -1793,7 +1845,7 @@ out:
return res;
}
static int sas_rediscover_dev(struct domain_device *dev, int phy_id)
static int sas_rediscover_dev(struct domain_device *dev, int phy_id, bool last)
{
struct expander_device *ex = &dev->ex_dev;
struct ex_phy *phy = &ex->ex_phy[phy_id];
@ -1804,11 +1856,11 @@ static int sas_rediscover_dev(struct domain_device *dev, int phy_id)
switch (res) {
case SMP_RESP_NO_PHY:
phy->phy_state = PHY_NOT_PRESENT;
sas_unregister_devs_sas_addr(dev, phy_id);
sas_unregister_devs_sas_addr(dev, phy_id, last);
goto out; break;
case SMP_RESP_PHY_VACANT:
phy->phy_state = PHY_VACANT;
sas_unregister_devs_sas_addr(dev, phy_id);
sas_unregister_devs_sas_addr(dev, phy_id, last);
goto out; break;
case SMP_RESP_FUNC_ACC:
break;
@ -1816,7 +1868,7 @@ static int sas_rediscover_dev(struct domain_device *dev, int phy_id)
if (SAS_ADDR(attached_sas_addr) == 0) {
phy->phy_state = PHY_EMPTY;
sas_unregister_devs_sas_addr(dev, phy_id);
sas_unregister_devs_sas_addr(dev, phy_id, last);
} else if (SAS_ADDR(attached_sas_addr) ==
SAS_ADDR(phy->attached_sas_addr)) {
SAS_DPRINTK("ex %016llx phy 0x%x broadcast flutter\n",
@ -1828,12 +1880,27 @@ out:
return res;
}
/**
* sas_rediscover - revalidate the domain.
* @dev:domain device to be detect.
* @phy_id: the phy id will be detected.
*
* NOTE: this process _must_ quit (return) as soon as any connection
* errors are encountered. Connection recovery is done elsewhere.
* Discover process only interrogates devices in order to discover the
* domain.For plugging out, we un-register the device only when it is
* the last phy in the port, for other phys in this port, we just delete it
* from the port.For inserting, we do discovery when it is the
* first phy,for other phys in this port, we add it to the port to
* forming the wide-port.
*/
static int sas_rediscover(struct domain_device *dev, const int phy_id)
{
struct expander_device *ex = &dev->ex_dev;
struct ex_phy *changed_phy = &ex->ex_phy[phy_id];
int res = 0;
int i;
bool last = true; /* is this the last phy of the port */
SAS_DPRINTK("ex %016llx phy%d originated BROADCAST(CHANGE)\n",
SAS_ADDR(dev->sas_addr), phy_id);
@ -1848,13 +1915,13 @@ static int sas_rediscover(struct domain_device *dev, const int phy_id)
SAS_ADDR(changed_phy->attached_sas_addr)) {
SAS_DPRINTK("phy%d part of wide port with "
"phy%d\n", phy_id, i);
goto out;
last = false;
break;
}
}
res = sas_rediscover_dev(dev, phy_id);
res = sas_rediscover_dev(dev, phy_id, last);
} else
res = sas_discover_new(dev, phy_id);
out:
return res;
}
@ -1881,7 +1948,7 @@ int sas_ex_revalidate_domain(struct domain_device *port_dev)
do {
phy_id = -1;
res = sas_find_bcast_phy(dev, &phy_id, i);
res = sas_find_bcast_phy(dev, &phy_id, i, true);
if (phy_id == -1)
break;
res = sas_rediscover(dev, phy_id);

19
drivers/scsi/libsas/sas_port.c
View File

@ -56,7 +56,7 @@ static void sas_form_port(struct asd_sas_phy *phy)
}
}
/* find a port */
/* see if the phy should be part of a wide port */
spin_lock_irqsave(&sas_ha->phy_port_lock, flags);
for (i = 0; i < sas_ha->num_phys; i++) {
port = sas_ha->sas_port[i];
@ -69,12 +69,23 @@ static void sas_form_port(struct asd_sas_phy *phy)
SAS_DPRINTK("phy%d matched wide port%d\n", phy->id,
port->id);
break;
} else if (*(u64 *) port->sas_addr == 0 && port->num_phys==0) {
memcpy(port->sas_addr, phy->sas_addr, SAS_ADDR_SIZE);
break;
}
spin_unlock(&port->phy_list_lock);
}
/* The phy does not match any existing port, create a new one */
if (i == sas_ha->num_phys) {
for (i = 0; i < sas_ha->num_phys; i++) {
port = sas_ha->sas_port[i];
spin_lock(&port->phy_list_lock);
if (*(u64 *)port->sas_addr == 0
&& port->num_phys == 0) {
memcpy(port->sas_addr, phy->sas_addr,
SAS_ADDR_SIZE);
break;
}
spin_unlock(&port->phy_list_lock);
}
}
if (i >= sas_ha->num_phys) {
printk(KERN_NOTICE "%s: couldn't find a free port, bug?\n",

15
drivers/scsi/qla4xxx/ql4_dbg.c
View File

@ -15,19 +15,18 @@ void qla4xxx_dump_buffer(void *b, uint32_t size)
uint32_t cnt;
uint8_t *c = b;
printk(" 0 1 2 3 4 5 6 7 8 9 Ah Bh Ch Dh Eh "
printk(" 0 1 2 3 4 5 6 7 8 9 Ah Bh Ch Dh Eh "
"Fh\n");
printk("------------------------------------------------------------"
"--\n");
for (cnt = 0; cnt < size; cnt++, c++) {
printk(KERN_DEBUG "%02x", *c);
if (!(cnt % 16))
printk(KERN_DEBUG "\n");
for (cnt = 0; cnt < size; c++) {
printk(KERN_INFO "%02x", *c);
if (!(++cnt % 16))
printk(KERN_INFO "\n");
else
printk(KERN_DEBUG " ");
printk(KERN_INFO " ");
}
if (cnt % 16)
printk(KERN_DEBUG "\n");
printk(KERN_INFO "\n");
}

9
drivers/scsi/qla4xxx/ql4_def.h
View File

@ -100,7 +100,6 @@
#define MAX_SRBS MAX_CMDS_TO_RISC
#define MBOX_AEN_REG_COUNT 5
#define MAX_INIT_RETRIES 5
#define IOCB_HIWAT_CUSHION 16
/*
* Buffer sizes
@ -184,6 +183,11 @@ struct srb {
uint16_t cc_stat;
u_long r_start; /* Time we recieve a cmd from OS */
u_long u_start; /* Time when we handed the cmd to F/W */
/* Used for extended sense / status continuation */
uint8_t *req_sense_ptr;
uint16_t req_sense_len;
uint16_t reserved2;
};
/*
@ -302,7 +306,6 @@ struct scsi_qla_host {
uint32_t tot_ddbs;
uint16_t iocb_cnt;
uint16_t iocb_hiwat;
/* SRB cache. */
#define SRB_MIN_REQ 128
@ -436,6 +439,8 @@ struct scsi_qla_host {
/* Map ddb_list entry by FW ddb index */
struct ddb_entry *fw_ddb_index_map[MAX_DDB_ENTRIES];
/* Saved srb for status continuation entry processing */
struct srb *status_srb;
};
static inline int is_qla4010(struct scsi_qla_host *ha)

7
drivers/scsi/qla4xxx/ql4_fw.h
View File

@ -572,6 +572,7 @@ struct conn_event_log_entry {
*************************************************************************/
#define IOCB_MAX_CDB_LEN 16 /* Bytes in a CBD */
#define IOCB_MAX_SENSEDATA_LEN 32 /* Bytes of sense data */
#define IOCB_MAX_EXT_SENSEDATA_LEN 60 /* Bytes of extended sense data */
/* IOCB header structure */
struct qla4_header {
@ -733,6 +734,12 @@ struct status_entry {
};
/* Status Continuation entry */
struct status_cont_entry {
struct qla4_header hdr; /* 00-03 */
uint8_t ext_sense_data[IOCB_MAX_EXT_SENSEDATA_LEN]; /* 04-63 */
};
struct passthru0 {
struct qla4_header hdr; /* 00-03 */
uint32_t handle; /* 04-07 */

133
drivers/scsi/qla4xxx/ql4_iocb.c
View File

@ -10,9 +10,42 @@
#include "ql4_dbg.h"
#include "ql4_inline.h"
#include <scsi/scsi_tcq.h>
static int
qla4xxx_space_in_req_ring(struct scsi_qla_host *ha, uint16_t req_cnt)
{
uint16_t cnt;
/* Calculate number of free request entries. */
if ((req_cnt + 2) >= ha->req_q_count) {
cnt = (uint16_t) le32_to_cpu(ha->shadow_regs->req_q_out);
if (ha->request_in < cnt)
ha->req_q_count = cnt - ha->request_in;
else
ha->req_q_count = REQUEST_QUEUE_DEPTH -
(ha->request_in - cnt);
}
/* Check if room for request in request ring. */
if ((req_cnt + 2) < ha->req_q_count)
return 1;
else
return 0;
}
static void qla4xxx_advance_req_ring_ptr(struct scsi_qla_host *ha)
{
/* Advance request queue pointer */
if (ha->request_in == (REQUEST_QUEUE_DEPTH - 1)) {
ha->request_in = 0;
ha->request_ptr = ha->request_ring;
} else {
ha->request_in++;
ha->request_ptr++;
}
}
/**
* qla4xxx_get_req_pkt - returns a valid entry in request queue.
* @ha: Pointer to host adapter structure.
@ -26,35 +59,18 @@
static int qla4xxx_get_req_pkt(struct scsi_qla_host *ha,
struct queue_entry **queue_entry)
{
uint16_t request_in;
uint8_t status = QLA_SUCCESS;
uint16_t req_cnt = 1;
*queue_entry = ha->request_ptr;
/* get the latest request_in and request_out index */
request_in = ha->request_in;
ha->request_out = (uint16_t) le32_to_cpu(ha->shadow_regs->req_q_out);
/* Advance request queue pointer and check for queue full */
if (request_in == (REQUEST_QUEUE_DEPTH - 1)) {
request_in = 0;
ha->request_ptr = ha->request_ring;
} else {
request_in++;
ha->request_ptr++;
}
/* request queue is full, try again later */
if ((ha->iocb_cnt + 1) >= ha->iocb_hiwat) {
/* restore request pointer */
ha->request_ptr = *queue_entry;
status = QLA_ERROR;
} else {
ha->request_in = request_in;
if (qla4xxx_space_in_req_ring(ha, req_cnt)) {
*queue_entry = ha->request_ptr;
memset(*queue_entry, 0, sizeof(**queue_entry));
qla4xxx_advance_req_ring_ptr(ha);
ha->req_q_count -= req_cnt;
return QLA_SUCCESS;
}
return status;
return QLA_ERROR;
}
/**
@ -100,21 +116,14 @@ exit_send_marker:
return status;
}
static struct continuation_t1_entry* qla4xxx_alloc_cont_entry(
struct scsi_qla_host *ha)
static struct continuation_t1_entry *
qla4xxx_alloc_cont_entry(struct scsi_qla_host *ha)
{
struct continuation_t1_entry *cont_entry;
cont_entry = (struct continuation_t1_entry *)ha->request_ptr;
/* Advance request queue pointer */
if (ha->request_in == (REQUEST_QUEUE_DEPTH - 1)) {
ha->request_in = 0;
ha->request_ptr = ha->request_ring;
} else {
ha->request_in++;
ha->request_ptr++;
}
qla4xxx_advance_req_ring_ptr(ha);
/* Load packet defaults */
cont_entry->hdr.entryType = ET_CONTINUE;
@ -197,13 +206,10 @@ int qla4xxx_send_command_to_isp(struct scsi_qla_host *ha, struct srb * srb)
struct scsi_cmnd *cmd = srb->cmd;
struct ddb_entry *ddb_entry;
struct command_t3_entry *cmd_entry;
int nseg;
uint16_t tot_dsds;
uint16_t req_cnt;
unsigned long flags;
uint16_t cnt;
uint32_t index;
char tag[2];
@ -217,6 +223,19 @@ int qla4xxx_send_command_to_isp(struct scsi_qla_host *ha, struct srb * srb)
index = (uint32_t)cmd->request->tag;
/*
* Check to see if adapter is online before placing request on
* request queue. If a reset occurs and a request is in the queue,
* the firmware will still attempt to process the request, retrieving
* garbage for pointers.
*/
if (!test_bit(AF_ONLINE, &ha->flags)) {
DEBUG2(printk("scsi%ld: %s: Adapter OFFLINE! "
"Do not issue command.\n",
ha->host_no, __func__));
goto queuing_error;
}
/* Calculate the number of request entries needed. */
nseg = scsi_dma_map(cmd);
if (nseg < 0)
@ -224,17 +243,7 @@ int qla4xxx_send_command_to_isp(struct scsi_qla_host *ha, struct srb * srb)
tot_dsds = nseg;
req_cnt = qla4xxx_calc_request_entries(tot_dsds);
if (ha->req_q_count < (req_cnt + 2)) {
cnt = (uint16_t) le32_to_cpu(ha->shadow_regs->req_q_out);
if (ha->request_in < cnt)
ha->req_q_count = cnt - ha->request_in;
else
ha->req_q_count = REQUEST_QUEUE_DEPTH -
(ha->request_in - cnt);
}
if (ha->req_q_count < (req_cnt + 2))
if (!qla4xxx_space_in_req_ring(ha, req_cnt))
goto queuing_error;
/* total iocbs active */
@ -286,32 +295,10 @@ int qla4xxx_send_command_to_isp(struct scsi_qla_host *ha, struct srb * srb)
break;
}
/* Advance request queue pointer */
ha->request_in++;
if (ha->request_in == REQUEST_QUEUE_DEPTH) {
ha->request_in = 0;
ha->request_ptr = ha->request_ring;
} else
ha->request_ptr++;
qla4xxx_advance_req_ring_ptr(ha);
qla4xxx_build_scsi_iocbs(srb, cmd_entry, tot_dsds);
wmb();
/*
* Check to see if adapter is online before placing request on
* request queue. If a reset occurs and a request is in the queue,
* the firmware will still attempt to process the request, retrieving
* garbage for pointers.
*/
if (!test_bit(AF_ONLINE, &ha->flags)) {
DEBUG2(printk("scsi%ld: %s: Adapter OFFLINE! "
"Do not issue command.\n",
ha->host_no, __func__));
goto queuing_error;
}
srb->cmd->host_scribble = (unsigned char *)srb;
/* update counters */

145
drivers/scsi/qla4xxx/ql4_isr.c
View File

@ -10,6 +10,98 @@
#include "ql4_dbg.h"
#include "ql4_inline.h"
/**
* qla4xxx_copy_sense - copy sense data into cmd sense buffer
* @ha: Pointer to host adapter structure.
* @sts_entry: Pointer to status entry structure.
* @srb: Pointer to srb structure.
**/
static void qla4xxx_copy_sense(struct scsi_qla_host *ha,
struct status_entry *sts_entry,
struct srb *srb)
{
struct scsi_cmnd *cmd = srb->cmd;
uint16_t sense_len;
memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
sense_len = le16_to_cpu(sts_entry->senseDataByteCnt);
if (sense_len == 0)
return;
/* Save total available sense length,
* not to exceed cmd's sense buffer size */
sense_len = min_t(uint16_t, sense_len, SCSI_SENSE_BUFFERSIZE);
srb->req_sense_ptr = cmd->sense_buffer;
srb->req_sense_len = sense_len;
/* Copy sense from sts_entry pkt */
sense_len = min_t(uint16_t, sense_len, IOCB_MAX_SENSEDATA_LEN);
memcpy(cmd->sense_buffer, sts_entry->senseData, sense_len);
DEBUG2(printk(KERN_INFO "scsi%ld:%d:%d:%d: %s: sense key = %x, "
"ASL= %02x, ASC/ASCQ = %02x/%02x\n", ha->host_no,
cmd->device->channel, cmd->device->id,
cmd->device->lun, __func__,
sts_entry->senseData[2] & 0x0f,
sts_entry->senseData[7],
sts_entry->senseData[12],
sts_entry->senseData[13]));
DEBUG5(qla4xxx_dump_buffer(cmd->sense_buffer, sense_len));
srb->flags |= SRB_GOT_SENSE;
/* Update srb, in case a sts_cont pkt follows */
srb->req_sense_ptr += sense_len;
srb->req_sense_len -= sense_len;
if (srb->req_sense_len != 0)
ha->status_srb = srb;
else
ha->status_srb = NULL;
}
/**
* qla4xxx_status_cont_entry - Process a Status Continuations entry.
* @ha: SCSI driver HA context
* @sts_cont: Entry pointer
*
* Extended sense data.
*/
static void
qla4xxx_status_cont_entry(struct scsi_qla_host *ha,
struct status_cont_entry *sts_cont)
{
struct srb *srb = ha->status_srb;
struct scsi_cmnd *cmd;
uint8_t sense_len;
if (srb == NULL)
return;
cmd = srb->cmd;
if (cmd == NULL) {
DEBUG2(printk(KERN_INFO "scsi%ld: %s: Cmd already returned "
"back to OS srb=%p srb->state:%d\n", ha->host_no,
__func__, srb, srb->state));
ha->status_srb = NULL;
return;
}
/* Copy sense data. */
sense_len = min_t(uint16_t, srb->req_sense_len,
IOCB_MAX_EXT_SENSEDATA_LEN);
memcpy(srb->req_sense_ptr, sts_cont->ext_sense_data, sense_len);
DEBUG5(qla4xxx_dump_buffer(srb->req_sense_ptr, sense_len));
srb->req_sense_ptr += sense_len;
srb->req_sense_len -= sense_len;
/* Place command on done queue. */
if (srb->req_sense_len == 0) {
qla4xxx_srb_compl(ha, srb);
ha->status_srb = NULL;
}
}
/**
* qla4xxx_status_entry - processes status IOCBs
* @ha: Pointer to host adapter structure.
@ -23,7 +115,6 @@ static void qla4xxx_status_entry(struct scsi_qla_host *ha,
struct srb *srb;
struct ddb_entry *ddb_entry;
uint32_t residual;
uint16_t sensebytecnt;
srb = qla4xxx_del_from_active_array(ha, le32_to_cpu(sts_entry->handle));
if (!srb) {
@ -92,24 +183,7 @@ static void qla4xxx_status_entry(struct scsi_qla_host *ha,
break;
/* Copy Sense Data into sense buffer. */
memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
sensebytecnt = le16_to_cpu(sts_entry->senseDataByteCnt);
if (sensebytecnt == 0)
break;
memcpy(cmd->sense_buffer, sts_entry->senseData,
min_t(uint16_t, sensebytecnt, SCSI_SENSE_BUFFERSIZE));
DEBUG2(printk("scsi%ld:%d:%d:%d: %s: sense key = %x, "
"ASC/ASCQ = %02x/%02x\n", ha->host_no,
cmd->device->channel, cmd->device->id,
cmd->device->lun, __func__,
sts_entry->senseData[2] & 0x0f,
sts_entry->senseData[12],
sts_entry->senseData[13]));
srb->flags |= SRB_GOT_SENSE;
qla4xxx_copy_sense(ha, sts_entry, srb);
break;
case SCS_INCOMPLETE:
@ -176,23 +250,7 @@ static void qla4xxx_status_entry(struct scsi_qla_host *ha,
break;
/* Copy Sense Data into sense buffer. */
memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
sensebytecnt =
le16_to_cpu(sts_entry->senseDataByteCnt);
if (sensebytecnt == 0)
break;
memcpy(cmd->sense_buffer, sts_entry->senseData,
min_t(uint16_t, sensebytecnt, SCSI_SENSE_BUFFERSIZE));
DEBUG2(printk("scsi%ld:%d:%d:%d: %s: sense key = %x, "
"ASC/ASCQ = %02x/%02x\n", ha->host_no,
cmd->device->channel, cmd->device->id,
cmd->device->lun, __func__,
sts_entry->senseData[2] & 0x0f,
sts_entry->senseData[12],
sts_entry->senseData[13]));
qla4xxx_copy_sense(ha, sts_entry, srb);
} else {
/*
* If RISC reports underrun and target does not
@ -268,9 +326,10 @@ static void qla4xxx_status_entry(struct scsi_qla_host *ha,
status_entry_exit:
/* complete the request */
/* complete the request, if not waiting for status_continuation pkt */
srb->cc_stat = sts_entry->completionStatus;
qla4xxx_srb_compl(ha, srb);
if (ha->status_srb == NULL)
qla4xxx_srb_compl(ha, srb);
}
/**
@ -305,10 +364,7 @@ static void qla4xxx_process_response_queue(struct scsi_qla_host * ha)
/* process entry */
switch (sts_entry->hdr.entryType) {
case ET_STATUS:
/*
* Common status - Single completion posted in single
* IOSB.
*/
/* Common status */
qla4xxx_status_entry(ha, sts_entry);
break;
@ -316,9 +372,8 @@ static void qla4xxx_process_response_queue(struct scsi_qla_host * ha)
break;
case ET_STATUS_CONTINUATION:
/* Just throw away the status continuation entries */
DEBUG2(printk("scsi%ld: %s: Status Continuation entry "
"- ignoring\n", ha->host_no, __func__));
qla4xxx_status_cont_entry(ha,
(struct status_cont_entry *) sts_entry);
break;
case ET_COMMAND:

10
drivers/scsi/qla4xxx/ql4_mbx.c
View File

@ -385,16 +385,6 @@ int qla4xxx_get_firmware_status(struct scsi_qla_host * ha)
mbox_sts[0]));
return QLA_ERROR;
}
/* High-water mark of IOCBs */
ha->iocb_hiwat = mbox_sts[2];
if (ha->iocb_hiwat > IOCB_HIWAT_CUSHION)
ha->iocb_hiwat -= IOCB_HIWAT_CUSHION;
else
dev_info(&ha->pdev->dev, "WARNING!!! You have less than %d "
"firmware IOCBs available (%d).\n",
IOCB_HIWAT_CUSHION, ha->iocb_hiwat);
return QLA_SUCCESS;
}

40
drivers/scsi/qla4xxx/ql4_os.c
View File

@ -66,6 +66,7 @@ static int qla4xxx_sess_get_param(struct iscsi_cls_session *sess,
static int qla4xxx_host_get_param(struct Scsi_Host *shost,
enum iscsi_host_param param, char *buf);
static void qla4xxx_recovery_timedout(struct iscsi_cls_session *session);
static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc);
/*
* SCSI host template entry points
@ -89,6 +90,7 @@ static struct scsi_host_template qla4xxx_driver_template = {
.eh_device_reset_handler = qla4xxx_eh_device_reset,
.eh_target_reset_handler = qla4xxx_eh_target_reset,
.eh_host_reset_handler = qla4xxx_eh_host_reset,
.eh_timed_out = qla4xxx_eh_cmd_timed_out,
.slave_configure = qla4xxx_slave_configure,
.slave_alloc = qla4xxx_slave_alloc,
@ -124,6 +126,21 @@ static struct iscsi_transport qla4xxx_iscsi_transport = {
static struct scsi_transport_template *qla4xxx_scsi_transport;
static enum blk_eh_timer_return qla4xxx_eh_cmd_timed_out(struct scsi_cmnd *sc)
{
struct iscsi_cls_session *session;
struct ddb_entry *ddb_entry;
session = starget_to_session(scsi_target(sc->device));
ddb_entry = session->dd_data;
/* if we are not logged in then the LLD is going to clean up the cmd */
if (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE)
return BLK_EH_RESET_TIMER;
else
return BLK_EH_NOT_HANDLED;
}
static void qla4xxx_recovery_timedout(struct iscsi_cls_session *session)
{
struct ddb_entry *ddb_entry = session->dd_data;
@ -904,18 +921,17 @@ static int qla4xxx_recover_adapter(struct scsi_qla_host *ha,
/* Flush any pending ddb changed AENs */
qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
qla4xxx_flush_active_srbs(ha);
/* Reset the firmware. If successful, function
* returns with ISP interrupts enabled.
*/
if (status == QLA_SUCCESS) {
DEBUG2(printk("scsi%ld: %s - Performing soft reset..\n",
ha->host_no, __func__));
qla4xxx_flush_active_srbs(ha);
if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS)
status = qla4xxx_soft_reset(ha);
else
status = QLA_ERROR;
}
DEBUG2(printk("scsi%ld: %s - Performing soft reset..\n",
ha->host_no, __func__));
if (ql4xxx_lock_drvr_wait(ha) == QLA_SUCCESS)
status = qla4xxx_soft_reset(ha);
else
status = QLA_ERROR;
/* Flush any pending ddb changed AENs */
qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
@ -1527,11 +1543,9 @@ static int qla4xxx_eh_device_reset(struct scsi_cmnd *cmd)
{
struct scsi_qla_host *ha = to_qla_host(cmd->device->host);
struct ddb_entry *ddb_entry = cmd->device->hostdata;
struct srb *sp;
int ret = FAILED, stat;
sp = (struct srb *) cmd->SCp.ptr;
if (!sp || !ddb_entry)
if (!ddb_entry)
return ret;
dev_info(&ha->pdev->dev,
@ -1644,7 +1658,7 @@ static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
ha = (struct scsi_qla_host *) cmd->device->host->hostdata;
dev_info(&ha->pdev->dev,
"scsi(%ld:%d:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no,
"scsi(%ld:%d:%d:%d): HOST RESET ISSUED.\n", ha->host_no,
cmd->device->channel, cmd->device->id, cmd->device->lun);
if (qla4xxx_wait_for_hba_online(ha) != QLA_SUCCESS) {

2
drivers/scsi/qla4xxx/ql4_version.h
View File

@ -5,5 +5,5 @@
* See LICENSE.qla4xxx for copyright and licensing details.
*/
#define QLA4XXX_DRIVER_VERSION "5.01.00-k8"
#define QLA4XXX_DRIVER_VERSION "5.01.00-k9"

20
drivers/scsi/sd.c
View File

@ -1840,6 +1840,18 @@ static void sd_read_block_characteristics(struct scsi_disk *sdkp)
kfree(buffer);
}
static int sd_try_extended_inquiry(struct scsi_device *sdp)
{
/*
* Although VPD inquiries can go to SCSI-2 type devices,
* some USB ones crash on receiving them, and the pages
* we currently ask for are for SPC-3 and beyond
*/
if (sdp->scsi_level > SCSI_SPC_2)
return 1;
return 0;
}
/**
* sd_revalidate_disk - called the first time a new disk is seen,
* performs disk spin up, read_capacity, etc.
@ -1877,8 +1889,12 @@ static int sd_revalidate_disk(struct gendisk *disk)
*/
if (sdkp->media_present) {
sd_read_capacity(sdkp, buffer);
sd_read_block_limits(sdkp);
sd_read_block_characteristics(sdkp);
if (sd_try_extended_inquiry(sdp)) {
sd_read_block_limits(sdkp);
sd_read_block_characteristics(sdkp);
}
sd_read_write_protect_flag(sdkp, buffer);
sd_read_cache_type(sdkp, buffer);
sd_read_app_tag_own(sdkp, buffer);