[ofw][SRP] recovery thread updated
Alex Estrin
alex.estrin at qlogic.com
Thu Apr 3 06:37:59 PDT 2008
Leonid,
Please commit the latest patch.
Thank you,
Alex
> -----Original Message-----
> From: Leonid Keller [mailto:leonid at mellanox.co.il]
> Sent: Wednesday, April 02, 2008 2:29 PM
> To: Alex Estrin; ofw at lists.openfabrics.org
> Subject: RE: [ofw][SRP] recovery thread updated
>
> Unfortunately, we have no capacity now to test this patch thoroughly
> enough.
> If you feel confident with this fix, I can commit it to the trunk.
> It would be great, if someone from the community could test it in his
> environment.
>
> > -----Original Message-----
> > From: ofw-bounces at lists.openfabrics.org
> > [mailto:ofw-bounces at lists.openfabrics.org] On Behalf Of Alex Estrin
> > Sent: Wednesday, April 02, 2008 6:59 AM
> > To: ofw at lists.openfabrics.org
> > Subject: [ofw][SRP] recovery thread updated
> >
> > I got back to the patch and found session recovery thread
> > could be signaled more than once during recovery.
> > Updated code a bit to provide strict connection states set
> and check.
> > Please review.
> >
> > Thanks,
> > Alex Estrin
> >
> >
> > Index: srp/kernel/srp_connection.c
> > ===================================================================
> > --- srp/kernel/srp_connection.c (revision 1026)
> > +++ srp/kernel/srp_connection.c (working copy)
> > @@ -51,6 +51,12 @@
> >
> > #include <complib/cl_math.h>
> >
> > +#if DBG
> > +
> > +extern void* gp_session[SRP_MAX_SERVICE_ENTRIES];
> > +
> > +#endif
> > +
> > /* __srp_create_cqs */
> > /*!
> > Creates the send/recv completion queues to be used by this
> > connection @@ -284,28 +290,11 @@
> > srp_hba_t *p_hba = p_srp_session->p_hba;
> > ib_cm_drep_t cm_drep;
> > ib_api_status_t status;
> > - int i;
> > - int retry_count = 0;
> >
> > SRP_ENTER( SRP_DBG_PNP );
> >
> > - SRP_PRINT( TRACE_LEVEL_INFORMATION, SRP_DBG_DEBUG,
> > - ("Target has issued a disconnect request.\n") );
> > -
> > - if ( p_hba->adapter_paused == FALSE )
> > - {
> > - p_hba->adapter_paused = TRUE;
> > - StorPortBusy( p_hba->p_ext, (ULONG)-1 );
> > - StorPortCompleteRequest( p_hba->p_ext,
> > -
> > SP_UNTAGGED,
> > -
> > SP_UNTAGGED,
> > -
> > SP_UNTAGGED,
> > -
> > SRB_STATUS_BUSY );
> > - SRP_PRINT( TRACE_LEVEL_INFORMATION, SRP_DBG_DEBUG,
> > ("Pausing Adapter for %s.\n", p_hba->ioc_info.profile.id_string) );
> > - }
> > -
> > cl_obj_lock( &p_srp_session->obj );
> > - p_srp_session->connection.state = SRP_TARGET_DISCONNECTING;
> > + p_srp_session->connection.state = SRP_CONNECT_FAILURE;
> > cl_obj_unlock( &p_srp_session->obj );
> >
> > cm_drep.p_drep_pdata = NULL;
> > @@ -318,90 +307,16 @@
> > ("Cannot respond to target disconnect request.
> > Status = %d\n", status) );
> > }
> >
> > - cl_obj_lock( &p_hba->obj );
> > + SRP_PRINT( TRACE_LEVEL_WARNING, SRP_DBG_PNP,
> > + ("Target has issued a disconnect request for Session %d
> > ref_cnt = %d.\n",
> > +
> > p_srp_session->target_id,
> > +
> > p_srp_session->obj.ref_cnt) );
> >
> > - for ( i = 0; i < SRP_MAX_SERVICE_ENTRIES; i++ )
> > + if( !p_hba->adapter_stopped )
> > {
> > - if ( p_srp_session == p_hba->session_list[i] )
> > - {
> > - p_hba->session_list[i] = NULL;
> > - break;
> > - }
> > + srp_session_failed( p_srp_session );
> > }
> >
> > - cl_obj_unlock( &p_hba->obj );
> > -
> > - SRP_PRINT( TRACE_LEVEL_VERBOSE, SRP_DBG_DEBUG,
> > - ("Session Object ref_cnt = %d\n",
> > p_srp_session->obj.ref_cnt) );
> > - cl_obj_destroy( &p_srp_session->obj );
> > -
> > - do
> > - {
> > - retry_count++;
> > -
> > - SRP_PRINT( TRACE_LEVEL_INFORMATION, SRP_DBG_DEBUG,
> > - ("Attempting to reconnect %s. Connection Attempt
> > Count = %d.\n",
> > - p_hba->ioc_info.profile.id_string,
> > - retry_count) );
> > -
> > - SRP_PRINT( TRACE_LEVEL_VERBOSE, SRP_DBG_DEBUG,
> > - ("Creating New Session For Service Entry Index
> > %d.\n",
> > - p_hba->ioc_info.profile.num_svc_entries));
> > - p_srp_session = srp_new_session(
> > - p_hba, &p_hba->p_svc_entries[i], &status );
> > - if ( p_srp_session == NULL )
> > - {
> > - status = IB_INSUFFICIENT_MEMORY;
> > - break;
> > - }
> > -
> > - SRP_PRINT( TRACE_LEVEL_VERBOSE, SRP_DBG_DEBUG,
> > - ("New Session For Service Entry Index %d
> > Created.\n",
> > - p_hba->ioc_info.profile.num_svc_entries));
> > - SRP_PRINT( TRACE_LEVEL_VERBOSE, SRP_DBG_DEBUG,
> > - ("Logging Into Session.\n"));
> > - status = srp_session_login( p_srp_session );
> > - if ( status == IB_SUCCESS )
> > - {
> > - if ( p_hba->max_sg >
> > p_srp_session->connection.max_scatter_gather_entries )
> > - {
> > - p_hba->max_sg =
> > p_srp_session->connection.max_scatter_gather_entries;
> > - }
> > -
> > - if ( p_hba->max_srb_ext_sz >
> > p_srp_session->connection.init_to_targ_iu_sz )
> > - {
> > - p_hba->max_srb_ext_sz =
> > - sizeof( srp_send_descriptor_t )
> > -
> > - SRP_MAX_IU_SIZE +
> > -
> > p_srp_session->connection.init_to_targ_iu_sz;
> > - }
> > -
> > - cl_obj_lock( &p_hba->obj );
> > - p_hba->session_list[i] = p_srp_session;
> > - cl_obj_unlock( &p_hba->obj );
> > -
> > - SRP_PRINT( TRACE_LEVEL_VERBOSE, SRP_DBG_DEBUG,
> > - ("Session Login Issued
> > Successfully.\n"));
> > - }
> > - else
> > - {
> > - SRP_PRINT( TRACE_LEVEL_ERROR, SRP_DBG_ERROR,
> > - ("Session Login Failure Status = %d.\n",
> > status));
> > - SRP_PRINT( TRACE_LEVEL_VERBOSE, SRP_DBG_DEBUG,
> > - ("Session Object ref_cnt = %d\n",
> > p_srp_session->obj.ref_cnt) );
> > - cl_obj_destroy( &p_srp_session->obj );
> > - }
> > - } while ( (status != IB_SUCCESS) && (retry_count < 3) );
> > -
> > - if ( status == IB_SUCCESS )
> > - {
> > - SRP_PRINT( TRACE_LEVEL_INFORMATION, SRP_DBG_DEBUG,
> > - ("Resuming Adapter for %s.\n",
> > p_hba->ioc_info.profile.id_string) );
> > - p_hba->adapter_paused = FALSE;
> > - StorPortReady( p_hba->p_ext );
> > -// StorPortNotification( BusChangeDetected, p_hba->p_ext, 0
> > );
> > - }
> > -
> > SRP_EXIT( SRP_DBG_PNP );
> > }
> >
> > @@ -443,22 +358,26 @@
> >
> > p_connection->request_limit =
> > MIN( get_srp_login_response_request_limit_delta(
> > p_srp_login_rsp ), SRP_DEFAULT_RECV_Q_DEPTH );
> > +
> > + if( ib_ioc_profile_get_vend_id(
> > &p_srp_session->p_hba->ioc_info.profile) == 0x00066a &&
> > + cl_ntoh32(
> > p_srp_session->p_hba->ioc_info.profile.subsys_id ) == 0x38 )
> > + {
> > + /* workaround for FVIC */
> > + p_connection->request_limit /= 2;
> > + }
> >
> > + p_connection->max_limit = p_connection->request_limit;
> > p_connection->request_threashold = 2;
> > #if DBG
> > p_srp_session->x_req_limit =
> > p_connection->request_limit; #endif
> > - SRP_PRINT( TRACE_LEVEL_INFORMATION, SRP_DBG_DEBUG,
> > - ( "request_limit_delta %d, SRP_DEFAULT_RECV_Q_DEPTH %d,
> > request_threashold %d\n",
> > - get_srp_login_response_request_limit_delta(
> > p_srp_login_rsp ),
> > - SRP_DEFAULT_RECV_Q_DEPTH,
> > p_connection->request_threashold ));
> >
> > p_connection->send_queue_depth = p_connection->request_limit;
> > p_connection->recv_queue_depth = p_connection->request_limit;
> > p_connection->init_to_targ_iu_sz =
> > get_srp_login_response_max_init_to_targ_iu( p_srp_login_rsp );
> > p_connection->targ_to_init_iu_sz =
> > get_srp_login_response_max_targ_to_init_iu( p_srp_login_rsp );
> >
> > - p_connection->signaled_send_completion_count =
> > p_connection->send_queue_depth / 2;
> > + p_connection->signaled_send_completion_count = 32;
> >
> > if (( p_connection->descriptor_format &
> > DBDF_INDIRECT_DATA_BUFFER_DESCRIPTORS ) ==
> > DBDF_INDIRECT_DATA_BUFFER_DESCRIPTORS )
> > {
> > @@ -735,9 +654,9 @@
> >
> > cm_req.init_depth = send_msg_depth;
> >
> > - cm_req.remote_resp_timeout = 15;
> > + cm_req.remote_resp_timeout = ib_path_rec_pkt_life(
> > p_connection->p_path_rec ) + 1;
> > cm_req.flow_ctrl = FALSE;
> > - cm_req.local_resp_timeout = 16;
> > + cm_req.local_resp_timeout = ib_path_rec_pkt_life(
> > p_connection->p_path_rec ) + 1;
> > cm_req.retry_cnt = 1;
> > cm_req.rnr_nak_timeout = 0; /* 655.36 ms */
> > cm_req.rnr_retry_cnt = 6;
> > @@ -900,6 +819,13 @@
> > status = IB_ERROR;
> > goto exit;
> > }
> > +
> > + cl_thread_init( &p_session->recovery_thread,
> > +
> > (cl_pfn_thread_callback_t)srp_session_recovery_thread,
> > + (void *)p_session, "srp_thread"
> > );
> > +#if DBG
> > + gp_session[p_session->target_id] = p_session; #endif
> >
> > exit:
> > SRP_EXIT( SRP_DBG_PNP );
> > Index: srp/kernel/srp_connection.h
> > ===================================================================
> > --- srp/kernel/srp_connection.h (revision 1026)
> > +++ srp/kernel/srp_connection.h (working copy)
> > @@ -80,6 +80,7 @@
> >
> > atomic32_t tag;
> > atomic32_t request_limit;
> > + atomic32_t max_limit;
> > int32_t request_threashold;
> > uint32_t init_to_targ_iu_sz;
> > uint32_t targ_to_init_iu_sz;
> > Index: srp/kernel/srp_data_path.c
> > ===================================================================
> > --- srp/kernel/srp_data_path.c (revision 1026)
> > +++ srp/kernel/srp_data_path.c (working copy)
> > @@ -210,6 +210,7 @@
> > ib_api_status_t status;
> > ib_wc_t *p_wc_done_list = NULL;
> > ib_wc_t *p_wc;
> > + BOOLEAN to_recover = FALSE;
> >
> > SRP_ENTER( SRP_DBG_DATA );
> >
> > @@ -230,8 +231,8 @@
> > {
> > SRP_PRINT_EXIT( TRACE_LEVEL_ERROR, SRP_DBG_ERROR,
> > ("ib_poll_cq() failed!, status 0x%x\n",
> > status) );
> > -
> > - // TODO: Kill session and inform port driver link down
> > scsiportnotification
> > +
> > + p_srp_session->connection.state = SRP_CONNECT_FAILURE;
> > cl_obj_unlock( &p_srp_session->obj );
> > return;
> > }
> > @@ -254,7 +255,8 @@
> > case IB_WCS_SUCCESS:
> > break;
> > case IB_WCS_WR_FLUSHED_ERR:
> > - // TODO: Kill session and inform port
> > driver link down scsiportnotification
> > + if( !to_recover )
> > + to_recover = TRUE;
> > SRP_PRINT(
> > TRACE_LEVEL_INFORMATION, SRP_DBG_DATA,
> > ("Send Completion Status %s
> > Vendore Status = 0x%x, \n",
> >
> > p_srp_session->p_hba->ifc.get_wc_status_str( p_wc->status ),
> > @@ -271,7 +273,7 @@
> > get_srp_command_tag(
> > (srp_cmd_t *)p_send_descriptor->data_segment )) );
> > break;
> > default:
> > - // TODO: Kill session and inform port
> > driver link down scsiportnotification
> > + to_recover = TRUE;
> > SRP_PRINT( TRACE_LEVEL_ERROR,
> > SRP_DBG_ERROR,
> > ("Send Completion Status %s
> > Vendore Status = 0x%x, \n",
> >
> > p_srp_session->p_hba->ifc.get_wc_status_str( p_wc->status ),
> > @@ -299,15 +301,22 @@
> > p_wc = p_wc_done_list;
> > }
> >
> > - /* Re-arm the CQ for more completions */
> > - status = p_srp_session->p_hba->ifc.rearm_cq(
> > + if( !to_recover )
> > + {
> > + /* Re-arm the CQ for more completions */
> > + status = p_srp_session->p_hba->ifc.rearm_cq(
> > p_srp_session->connection.h_send_cq, FALSE );
> > - if ( status != IB_SUCCESS)
> > + if ( status != IB_SUCCESS)
> > + {
> > + SRP_PRINT( TRACE_LEVEL_ERROR, SRP_DBG_ERROR,
> > + ("ib_rearm_cq() failed!, status 0x%x\n",
> > status) );
> > + p_srp_session->connection.state =
> > SRP_CONNECT_FAILURE;
> > + to_recover = TRUE;
> > + }
> > + }
> > + if( to_recover == TRUE )
> > {
> > - SRP_PRINT( TRACE_LEVEL_ERROR, SRP_DBG_ERROR,
> > - ("ib_rearm_cq() failed!, status 0x%x\n", status)
> > );
> > -
> > - // TODO: Kill session and inform port driver link down
> > scsiportnotification
> > + p_srp_session->connection.state = SRP_CONNECT_FAILURE;
> > }
> >
> > cl_obj_deref( &p_srp_session->obj );
> > @@ -336,6 +345,14 @@
> >
> > __srp_process_session_send_completions( p_srp_session );
> >
> > + if( p_srp_session->connection.state == SRP_CONNECT_FAILURE )
> > + {
> > + if( !p_srp_session->p_hba->adapter_stopped )
> > + {
> > + srp_session_failed( p_srp_session );
> > + }
> > + }
> > +
> > SRP_EXIT( SRP_DBG_DATA );
> > }
> >
> > @@ -355,7 +372,7 @@
> > return status;
> > }
> >
> > -void
> > +ib_api_status_t
> > __srp_post_io_request(
> > IN PVOID p_dev_ext,
> > IN OUT PSCSI_REQUEST_BLOCK p_srb,
> > @@ -390,7 +407,7 @@
> >
> > SRP_PRINT( TRACE_LEVEL_ERROR, SRP_DBG_ERROR,
> > ("Returning SrbStatus
> > %s(0x%x) for Function = %s(0x%x), Path = 0x%x, "
> > - "Target = 0x%x, Lun = 0x%x, tag
> > 0x%I64xn",
> > + "Target = 0x%x, Lun = 0x%x, tag
> > 0x%I64x\n",
> > g_srb_status_name[p_srb->SrbStatus],
> > p_srb->SrbStatus,
> > g_srb_function_name[p_srb->Function],
> > @@ -413,16 +430,18 @@
> >
> > exit:
> > SRP_EXIT( SRP_DBG_DATA );
> > + return status;
> > }
> >
> > static
> > -void
> > +ib_api_status_t
> > __srp_repost_io_request(
> > IN srp_session_t *p_srp_session )
> > {
> > srp_hba_t *p_hba;
> > srp_send_descriptor_t *p_send_descriptor = NULL;
> > srp_descriptors_t *p_descriptors =
> > &p_srp_session->descriptors;
> > + ib_api_status_t ib_status = IB_SUCCESS;
> >
> > SRP_ENTER( SRP_DBG_DATA );
> >
> > @@ -463,13 +482,14 @@
> > /* post the request */
> > p_hba = p_srp_session->p_hba;
> > p_send_descriptor = PARENT_STRUCT(p_list_item,
> > srp_send_descriptor_t,list_item);
> > - __srp_post_io_request( p_hba->p_ext,
> > p_send_descriptor->p_srb, p_srp_session );
> > + ib_status = __srp_post_io_request( p_hba->p_ext,
> > p_send_descriptor->p_srb, p_srp_session );
> > }
> >
> > cl_atomic_dec( &p_srp_session->repost_is_on );
> >
> > exit:
> > SRP_EXIT( SRP_DBG_DATA );
> > + return ib_status;
> > }
> >
> > static inline void
> > @@ -500,6 +520,8 @@
> > srp_rsp_t *p_srp_rsp;
> > uint8_t response_status;
> > srp_send_descriptor_t *p_send_descriptor;
> > + uint64_t response_tag;
> > + BOOLEAN session_recover = FALSE;
> >
> > SRP_ENTER( SRP_DBG_DATA );
> >
> > @@ -508,10 +530,10 @@
> > set_srp_response_from_network_to_host( p_srp_rsp );
> >
> > response_status = get_srp_response_status( p_srp_rsp );
> > -
> > + response_tag = get_srp_response_tag( (srp_rsp_t
> > *)p_recv_descriptor->p_data_segment );
> > +
> > p_send_descriptor = srp_find_matching_send_descriptor(
> > - &p_srp_session->descriptors,
> > - get_srp_response_tag( (srp_rsp_t
> > *)p_recv_descriptor->p_data_segment ) );
> > + &p_srp_session->descriptors, response_tag );
> > if ( p_send_descriptor == NULL )
> > {
> > /* Repost the recv descriptor */
> > @@ -521,21 +543,27 @@
> > {
> > SRP_PRINT( TRACE_LEVEL_ERROR, SRP_DBG_ERROR,
> > ("Failed to post send
> > descriptor. Status = %d.\n", status) );
> > - // TODO: Kill session and inform port driver
> > link down scsiportnotification
> > }
> > -
> > - __srp_fix_request_limit( p_srp_session, p_srp_rsp );
> > - __srp_repost_io_request( p_srp_session );
> > -
> > + else
> > + {
> > + __srp_fix_request_limit( p_srp_session,
> > p_srp_rsp );
> > + }
> > SRP_PRINT( TRACE_LEVEL_WARNING, SRP_DBG_DATA,
> > - ("Matching Send Descriptor Not Found.\n") );
> > -
> > - goto exit;
> > + ("Matching Send Descriptor not Found: tag
> > %#I64x\n", response_tag ) );
> > +
> > + if( status == IB_SUCCESS &&
> > + !cl_qlist_count(
> > &p_srp_session->descriptors.sent_descriptors ) )
> > + {
> > + /* Seem all commands from sent queue were
> > aborted by timeout already */
> > + /* most likely Target get stuck. schedule
> > session recovery */
> > + status = IB_ERROR;
> > + }
> > + return ( status );
> > }
> >
> > SRP_PRINT( TRACE_LEVEL_VERBOSE, SRP_DBG_DATA,
> > ("Recv Completion Received for
> > Function = %s(0x%x), "
> > - "Path = 0x%x, Target = 0x%x, Lun = 0x%x, tag
> > 0x%I64xn",
> > + "Path = 0x%x, Target = 0x%x, Lun = 0x%x, tag
> > 0x%I64x\n",
> >
> > g_srb_function_name[p_send_descriptor->p_srb->Function],
> > p_send_descriptor->p_srb->Function,
> > p_send_descriptor->p_srb->PathId, @@
> > -551,7 +579,6 @@
> >
> > set_srp_tsk_mgmt_from_network_to_host(
> > p_srp_tsk_mgmt );
> >
> > -
> > if(response_status == SCSISTAT_GOOD)
> > {
> >
> > p_send_descriptor->p_srb->SrbStatus = SRB_STATUS_SUCCESS; @@
> > -561,7 +588,7 @@
> >
> > p_send_descriptor->p_srb->SrbStatus = SRB_STATUS_ABORT_FAILED;
> > SRP_PRINT( TRACE_LEVEL_WARNING,
> > SRP_DBG_DATA,
> > ("Scsi Error %s (%#x)
> > Received for Function = %s(0x%x), "
> > - "Path = 0x%x, Target = 0x%x,
> > Lun = 0x%x, tag 0x%I64xn",
> > + "Path = 0x%x, Target = 0x%x,
> > Lun = 0x%x, tag 0x%I64x\n",
> >
> > g_srb_scsi_status_name[response_status],
> > response_status,
> >
> > g_srb_function_name[p_send_descriptor->p_srb->Function],
> > @@ -579,29 +606,13 @@
> > p_srp_session->connection.h_qp,
> > &p_recv_descriptor->wr, NULL );
> > if ( status != IB_SUCCESS )
> > {
> > + session_recover = TRUE;
> > SRP_PRINT( TRACE_LEVEL_ERROR,
> > SRP_DBG_ERROR,
> > ("Failed to post recv
> > descriptor. Status = %d.\n", status) );
> > - // TODO: Kill session and inform
> > port driver link down storportnotification
> > }
> >
> > - __srp_fix_request_limit( p_srp_session,
> > p_srp_rsp );
> > - __srp_repost_io_request( p_srp_session
> > );
> > -
> > - __srp_dump_srb_info( p_send_descriptor);
> > -
> > - status = __srp_clean_send_descriptor(
> > p_send_descriptor, p_srp_session );
> > - if ( status != IB_SUCCESS )
> > - {
> > - SRP_PRINT( TRACE_LEVEL_ERROR,
> > SRP_DBG_ERROR,
> > - ("Failed to unmap FMR
> > Status = %d.\n", status) );
> > - // TODO: Kill session and inform
> > port driver link down storportnotification
> > - }
> > -
> > - StorPortNotification( RequestComplete,
> > p_srp_session->p_hba->p_ext, p_send_descriptor->p_srb );
> > }
> >
> > -
> > -
> > break;
> > }
> >
> > @@ -616,7 +627,7 @@
> >
> > p_send_descriptor->p_srb->SrbStatus = SRB_STATUS_ABORT_FAILED;
> > SRP_PRINT( TRACE_LEVEL_WARNING,
> > SRP_DBG_DATA,
> > ("Scsi Error %s (%#x)
> > Received for Function = %s(0x%x), "
> > - "Path = 0x%x, Target = 0x%x,
> > Lun = 0x%x, tag 0x%I64xn",
> > + "Path = 0x%x, Target = 0x%x,
> > Lun = 0x%x, tag 0x%I64x\n",
> >
> > g_srb_scsi_status_name[response_status],
> > response_status,
> >
> > g_srb_function_name[p_send_descriptor->p_srb->Function],
> > @@ -676,7 +687,7 @@
> >
> > p_send_descriptor->p_srb->SenseInfoBufferLength ) );
> > SRP_PRINT( TRACE_LEVEL_WARNING,
> > SRP_DBG_DATA,
> > ("Sense Data
> > SENSE_KEY 0x%02x ADDITIONAL_SENSE_CODE"
> > - "0x%02x
> > ADDITIONAL_SENSE_QUILIFIER 0x%02x.\n",
> > + "0x%02x
> > ADDITIONAL_SENSE_QUALIFIER 0x%02x.\n",
> >
> > p_sense_data[2],p_sense_data[12],p_sense_data[13]) );
> >
> > if ( ((p_sense_data[2]&0xf) ==
> > 0x0b /*ABORTED_COMMAND*/) &&
> > @@ -686,15 +697,19 @@
> > {
> > /* probably a problem
> > with the Vfx FC san like wire pull*/
> > /* initiate session
> > recovery */
> > - SRP_PRINT(
> > TRACE_LEVEL_WARNING, SRP_DBG_DATA,
> > - ("Sense Data
> > indicates FC link connectivity has been lost.\n") );
> > - StorPortPauseDevice(
> > p_srp_session->p_hba->p_ext,
> > -
> > p_send_descriptor->p_srb->PathId,
> > -
> > p_send_descriptor->p_srb->TargetId,
> > -
> > p_send_descriptor->p_srb->Lun,
> > -
> > 5 );
> > + session_recover = TRUE;
> > + if(
> > p_srp_session->p_hba->session_paused[p_srp_session->target_id]
> > == FALSE
> > )
> > + {
> > +
> >
> p_srp_session->p_hba->session_paused[p_srp_session->target_id] = TRUE;
> > + SRP_PRINT(
> > TRACE_LEVEL_WARNING, SRP_DBG_DATA,
> > + ("Sense
> > Data indicates FC link connectivity has been lost.\n") );
> > +
> > StorPortDeviceBusy( p_srp_session->p_hba->p_ext,
> > +
> > SP_UNTAGGED,
> > +
> > p_srp_session->target_id,
> > +
> > SP_UNTAGGED,
> > +
> > (ULONG)-1 );
> > + }
> > }
> > -
> > }
> >
> > if ( get_srp_response_di_over( p_srp_rsp
> > ) || get_srp_response_do_over( p_srp_rsp ) ) @@ -717,25 +732,11 @@
> > p_srp_session->connection.h_qp,
> > &p_recv_descriptor->wr, NULL );
> > if ( status != IB_SUCCESS )
> > {
> > + session_recover = TRUE;
> > SRP_PRINT( TRACE_LEVEL_ERROR,
> > SRP_DBG_ERROR,
> > ("Failed to post recv
> > descriptor. Status = %d.\n", status) );
> > - // TODO: Kill session and inform port
> > driver link down storportnotification
> > }
> >
> > - __srp_fix_request_limit( p_srp_session,
> > p_srp_rsp );
> > - __srp_repost_io_request( p_srp_session );
> > -
> > - __srp_dump_srb_info( p_send_descriptor);
> > -
> > - status = __srp_clean_send_descriptor(
> > p_send_descriptor, p_srp_session );
> > - if ( status != IB_SUCCESS )
> > - {
> > - SRP_PRINT( TRACE_LEVEL_ERROR,
> > SRP_DBG_ERROR,
> > - ("Failed to unmap FMR Status =
> > %d.\n", status) );
> > - // TODO: Kill session and inform port
> > driver link down storportnotification
> > - }
> > -
> > - StorPortNotification( RequestComplete,
> > p_srp_session->p_hba->p_ext, p_send_descriptor->p_srb );
> > break;
> >
> > case SRP_LOGIN_REQ:
> > @@ -743,11 +744,33 @@
> > case SRP_CRED_RSP:
> > case SRP_AER_RSP:
> > default:
> > - CL_ASSERT ( 0 );
> > + SRP_PRINT( TRACE_LEVEL_ERROR, SRP_DBG_ERROR,
> > + ("Illegal SRP IU CMD/RSP %#x
> > received\n",
> > + get_srp_iu_buffer_type( (srp_iu_buffer_t
> > *)p_send_descriptor->data_segment ) ) );
> > + session_recover = TRUE;
> > break;
> > }
> >
> > -exit:
> > + status = __srp_clean_send_descriptor( p_send_descriptor,
> > p_srp_session );
> > + if ( status != IB_SUCCESS )
> > + {
> > + session_recover = TRUE;
> > + }
> > +
> > + if( session_recover == TRUE )
> > + {
> > + status = IB_ERROR;
> > + }
> > + else
> > + {
> > + __srp_fix_request_limit( p_srp_session, p_srp_rsp );
> > + status = __srp_repost_io_request( p_srp_session );
> > + }
> > +
> > + __srp_dump_srb_info( p_send_descriptor);
> > +
> > + StorPortNotification( RequestComplete,
> > p_srp_session->p_hba->p_ext, p_send_descriptor->p_srb );
> > +
> > SRP_EXIT( SRP_DBG_DATA );
> >
> > return ( status );
> > @@ -782,7 +805,8 @@
> > SRP_PRINT( TRACE_LEVEL_ERROR, SRP_DBG_ERROR,
> > ("ib_poll_cq() failed!, status 0x%x\n",
> > status) );
> >
> > - // TODO: Kill session and inform port driver link down
> > scsiportnotification
> > + p_srp_session->connection.state = SRP_CONNECT_FAILURE;
> > +
> > SRP_EXIT( SRP_DBG_DATA );
> > cl_obj_unlock( &p_srp_session->obj );
> > return;
> > @@ -806,7 +830,9 @@
> > status = __srp_process_recv_completion(
> > p_recv_descriptor, p_srp_session );
> > if ( status != IB_SUCCESS )
> > {
> > - // TODO: Kill session and inform port
> > driver link down scsiportnotification
> > + p_srp_session->connection.state =
> > SRP_CONNECT_FAILURE;
> > + cl_obj_deref( &p_srp_session->obj );
> > + return;
> > }
> > }
> > else
> > @@ -825,6 +851,10 @@
> >
> > p_srp_session->p_hba->ifc.get_wc_status_str( p_wc->status )));
> >
> > }
> > +
> > + p_srp_session->connection.state =
> > SRP_CONNECT_FAILURE;
> > + cl_obj_deref( &p_srp_session->obj );
> > + return;
> > }
> >
> > /* Put onto head of free list */
> > @@ -844,8 +874,10 @@
> > {
> > SRP_PRINT( TRACE_LEVEL_ERROR, SRP_DBG_ERROR,
> > ("ib_rearm_cq() failed!, status
> > 0x%x\n", status) );
> > + p_srp_session->connection.state = SRP_CONNECT_FAILURE;
> >
> > - // TODO: Kill session and inform port driver link down
> > scsiportnotification
> > + cl_obj_deref( &p_srp_session->obj );
> > + return;
> > }
> >
> > cl_obj_deref( &p_srp_session->obj );
> > @@ -873,7 +905,10 @@
> > UNUSED_PARAM( h_cq );
> >
> > __srp_process_session_recv_completions( p_srp_session );
> > -
> > + if( p_srp_session->connection.state == SRP_CONNECT_FAILURE )
> > + {
> > + srp_session_failed( p_srp_session );
> > + }
> > SRP_EXIT( SRP_DBG_DATA );
> > }
> >
> > @@ -887,7 +922,7 @@
> > @return - none
> > */
> > static inline
> > -void
> > +BOOLEAN
> > __srp_build_cmd(
> > IN PVOID p_dev_ext,
> > IN OUT PSCSI_REQUEST_BLOCK p_srb,
> > @@ -1124,6 +1159,7 @@
> > //set_srp_command_from_host_to_network( p_srp_cmd );
> >
> > SRP_EXIT( SRP_DBG_DATA );
> > + return TRUE;
> > }
> >
> > /* srp_format_io_request */
> > @@ -1159,7 +1195,9 @@
> >
> > p_srp_session = p_hba->session_list[p_srb->TargetId];
> >
> > - if ( p_srp_session != NULL )
> > + if ( p_srp_session != NULL &&
> > + p_srp_session->connection.state == SRP_CONNECTED &&
> > + !p_hba->session_paused[p_srb->TargetId] )
> > {
> > srp_conn_info_t srp_conn_info;
> >
> > @@ -1180,19 +1218,24 @@
> >
> > srp_build_send_descriptor( p_dev_ext, p_srb,
> > &srp_conn_info );
> >
> > - __srp_build_cmd( p_dev_ext, p_srb, &srp_conn_info );
> > + result = __srp_build_cmd( p_dev_ext, p_srb,
> > &srp_conn_info );
> > +
> > + if( result != TRUE )
> > + SRP_PRINT( TRACE_LEVEL_ERROR, SRP_DBG_ERROR,
> > + ("BUILD command %#x failed = %#x tag
> > %#I64x\n",
> > + p_srb->Cdb[0], p_srb->SrbStatus,
> > srp_conn_info.tag ) );
> > }
> > else
> > {
> > // Handle the error case here
> > SRP_PRINT( TRACE_LEVEL_ERROR, SRP_DBG_ERROR,
> > ("Cannot Find Session For Target ID = %d\n",
> > p_srb->TargetId) );
> > +
> > + p_srb->SrbStatus = SRB_STATUS_INVALID_TARGET_ID;
> > cl_obj_unlock( &p_hba->obj );
> > - p_srb->SrbStatus = SRB_STATUS_INVALID_TARGET_ID;
> > result = FALSE;
> > }
> >
> > -
> > SRP_EXIT( SRP_DBG_DATA );
> > return ( result );
> > }
> > @@ -1214,8 +1257,16 @@
> >
> > p_srp_session = p_hba->session_list[p_srb->TargetId];
> >
> > - if ( p_srp_session != NULL )
> > + if( p_hba->session_paused[p_srb->TargetId] == TRUE )
> > {
> > + cl_obj_unlock( &p_hba->obj );
> > + p_srb->SrbStatus = SRB_STATUS_BUSY;
> > + goto err;
> > + }
> > +
> > + if ( p_srp_session != NULL &&
> > + p_srp_session->connection.state == SRP_CONNECTED )
> > + {
> > cl_obj_ref( &p_srp_session->obj );
> > cl_obj_unlock( &p_hba->obj );
> >
> > @@ -1226,14 +1277,26 @@
> > !cl_is_qlist_empty(
> > &p_descriptors->pending_descriptors ) ||
> > p_srp_session->repost_is_on )
> > {
> > + int32_t num_pending_desc =
> > (int32_t)cl_qlist_count( &p_descriptors->pending_descriptors );
> > cl_spinlock_release (
> > &p_descriptors->pending_list_lock );
> > srp_add_pending_descriptor(
> > p_descriptors, p_send_descriptor );
> > +
> > + /* don't allow pending queue grow indefinitely
> > */
> > + if( num_pending_desc >=
> > p_srp_session->connection.max_limit )
> > + {
> > + StorPortDeviceBusy( p_dev_ext,
> > +
> > p_srb->PathId,
> > +
> > p_srb->TargetId,
> > +
> > p_srb->Lun,
> > +
> > 1 );
> > + }
> > +
> > cl_obj_deref( &p_srp_session->obj );
> > goto exit;
> > }
> > cl_spinlock_release (
> > &p_descriptors->pending_list_lock );
> >
> > - __srp_post_io_request( p_dev_ext, p_srb, p_srp_session
> > );
> > + status = __srp_post_io_request( p_dev_ext, p_srb,
> > p_srp_session );
> > cl_obj_deref( &p_srp_session->obj );
> > goto exit;
> > }
> > @@ -1247,7 +1310,7 @@
> > err:
> > SRP_PRINT( TRACE_LEVEL_ERROR, SRP_DBG_ERROR,
> > ("Returning SrbStatus %s(0x%x) for
> > Function = %s(0x%x), Path = 0x%x, "
> > - "Target = 0x%x, Lun = 0x%x, tag 0x%I64xn",
> > + "Target = 0x%x, Lun = 0x%x, tag 0x%I64x\n",
> > g_srb_status_name[p_srb->SrbStatus],
> > p_srb->SrbStatus,
> > g_srb_function_name[p_srb->Function],
> > @@ -1268,6 +1331,11 @@
> > StorPortNotification( RequestComplete, p_dev_ext, p_srb );
> >
> > exit:
> > + if( status != IB_SUCCESS )
> > + {
> > + p_srp_session->connection.state = SRP_CONNECT_FAILURE;
> > + srp_session_failed( p_srp_session );
> > + }
> > SRP_EXIT( SRP_DBG_DATA );
> > }
> >
> > @@ -1483,7 +1551,8 @@
> > {
> > srp_session_t *p_srp_session = p_session;
> >
> > - if (p_srp_session == NULL)
> > + if (p_srp_session == NULL ||
> > + p_srp_session->connection.state != SRP_CONNECTED )
> > return;
> >
> > p_srp_session->x_pkt_fmr = 0;
> > @@ -1506,7 +1575,8 @@
> > {
> > srp_session_t *p_srp_session = p_session;
> >
> > - if (p_srp_session == NULL)
> > + if (p_srp_session == NULL ||
> > + p_srp_session->connection.state != SRP_CONNECTED )
> > return;
> >
> > SRP_PRINT( TRACE_LEVEL_ERROR, SRP_DBG_DATA,
> > Index: srp/kernel/srp_driver.c
> > ===================================================================
> > --- srp/kernel/srp_driver.c (revision 1026)
> > +++ srp/kernel/srp_driver.c (working copy)
> > @@ -265,7 +265,7 @@
> > srp_x_clean(
> > IN void *p_session );
> >
> > -void *gp_session = NULL;
> > +void* gp_session[SRP_MAX_SERVICE_ENTRIES];
> >
> > #endif
> >
> > @@ -548,7 +548,7 @@
> > ("KeReleaseMutex status = %d.\n",
> > release_status) );
> > }
> >
> > - #if DBG
> > + #if DBG_STATISTICS
> > /* statistics */
> >
> > /* this function is called sometimes in the begging of
> > the test with @@ -557,11 +557,14 @@
> > /* sometimes it's called once in 50msec, so
> > we'll print once in 20 times */
> > static int interval = 40; /* 2 sec */
> > static int cnt = 0;
> > + static int i;
> > if (++cnt >= interval)
> > {
> > cnt = 0;
> > - srp_x_print( gp_session );
> > - srp_x_clean( gp_session );
> > + if(i > 3 ) i = 0;
> > + srp_x_print( gp_session[i] );
> > + srp_x_clean( gp_session[i] );
> > + i++;
> > }
> > }
> >
> > @@ -712,24 +715,13 @@
> >
> > if ( (p_srb->Lun == 0) && (p_srp_session !=
> > NULL) )
> > {
> > - p_hba->session_list[p_srb->TargetId] =
> > NULL;
> > -
> > - CL_ASSERT( p_srp_session != NULL );
> > -
> > p_srp_session->p_shutdown_srb = p_srb;
> > - cl_obj_destroy( &p_srp_session->obj );
> >
> > - SRP_PRINT( TRACE_LEVEL_INFORMATION,
> > SRP_DBG_DATA,
> > - ("Returning SrbStatus
> > %s(0x%x) for "
> > - "Function = %s(0x%x),
> > Path = 0x%x, "
> > - "Target = 0x%x, Lun =
> > 0x%x\n",
> > -
> > g_srb_status_name[p_srb->SrbStatus],
> > - p_srb->SrbStatus,
> > -
> > g_srb_function_name[p_srb->Function],
> > - p_srb->Function,
> > - p_srb->PathId,
> > - p_srb->TargetId,
> > - p_srb->Lun) );
> > + if( !p_hba->adapter_stopped )
> > + {
> > + p_hba->adapter_stopped = TRUE;
> > + srp_disconnect_sessions( p_hba
> > );
> > + }
> > }
> > else
> > {
> > @@ -831,8 +823,9 @@
> > SRP_ENTER( SRP_DBG_PNP );
> >
> > UNUSED_PARAM( p_dev_ext );
> > - UNUSED_PARAM( path_id );
> >
> > + StorPortCompleteRequest( p_dev_ext, (UCHAR)path_id, SP_UNTAGGED,
> > SP_UNTAGGED, SRB_STATUS_NO_HBA );
> > +
> > SRP_EXIT( SRP_DBG_PNP );
> > return FALSE;
> > }
> > @@ -873,6 +866,9 @@
> > {
> > SRP_PRINT( TRACE_LEVEL_VERBOSE, SRP_DBG_DEBUG,
> > ("HBA Object ref_cnt = %d\n",
> > p_ext->p_hba->obj.ref_cnt) );
> > + if( !p_ext->p_hba->adapter_stopped )
> > + p_ext->p_hba->adapter_stopped = TRUE;
> > + srp_disconnect_sessions( p_ext->p_hba );
> > cl_obj_destroy( &p_ext->p_hba->obj );
> > p_ext->p_hba = NULL;
> > }
> > Index: srp/kernel/srp_hba.c
> > ===================================================================
> > --- srp/kernel/srp_hba.c (revision 1026)
> > +++ srp/kernel/srp_hba.c (working copy)
> > @@ -730,29 +730,29 @@
> > {
> > int retry_count = 0;
> >
> > - SRP_PRINT( TRACE_LEVEL_VERBOSE, SRP_DBG_PNP,
> > - ("Creating New Session For Service Entry Index
> > %d.\n",
> > - p_hba->ioc_info.profile.num_svc_entries));
> > + do{
> > + retry_count++;
> >
> > - p_session = srp_new_session(
> > - p_hba, &p_hba->p_svc_entries[i], &status );
> > - if( p_session == NULL )
> > - {
> > - status = IB_INSUFFICIENT_MEMORY;
> > - continue;
> > - }
> > + SRP_PRINT( TRACE_LEVEL_VERBOSE, SRP_DBG_PNP,
> > + ("Creating New Session For Service Entry Index
> > %d.\n", i ));
> >
> > - SRP_PRINT( TRACE_LEVEL_VERBOSE, SRP_DBG_PNP,
> > - ("New Session For Service Entry Index %d
> > Created.\n",
> > - p_hba->ioc_info.profile.num_svc_entries));
> > + p_session = srp_new_session(
> > + p_hba,
> > +
> > &p_hba->p_svc_entries[i],
> > +
> > &p_hba->p_srp_path_record->path_rec,
> > + &status );
> > + if( p_session == NULL )
> > + {
> > + status = IB_INSUFFICIENT_MEMORY;
> > + break;
> > + }
> >
> > - do
> > - {
> > - retry_count++;
> > + SRP_PRINT( TRACE_LEVEL_VERBOSE, SRP_DBG_PNP,
> > + ("New Session For Service Entry Index %d
> > Created.\n", i ));
> >
> > SRP_PRINT( TRACE_LEVEL_INFORMATION, SRP_DBG_PNP,
> > - ("Attempting to connect %s. Connection
> > Attempt Count = %d.\n",
> > - p_hba->ioc_info.profile.id_string,
> > + ("Attempting to connect %s. Svc Idx %d;
> > Connection Attempt Count = %d.\n",
> > + p_hba->ioc_info.profile.id_string, i,
> > retry_count) );
> > SRP_PRINT( TRACE_LEVEL_VERBOSE, SRP_DBG_PNP,
> > ("Logging Into Session.\n"));
> > @@ -761,23 +761,10 @@
> > {
> > any_ioc_connected = TRUE;
> >
> > - if ( (p_hba->max_sg >
> > -
> > p_session->connection.max_scatter_gather_entries)
> > - &&
> > !(p_session->connection.descriptor_format &
> > -
> > DBDF_INDIRECT_DATA_BUFFER_DESCRIPTORS) )
> > - {
> > - p_hba->max_sg =
> > p_session->connection.max_scatter_gather_entries;
> > - }
> > + srp_session_adjust_params( p_session );
> >
> > - if ( p_hba->max_srb_ext_sz >
> > p_session->connection.init_to_targ_iu_sz )
> > - {
> > - p_hba->max_srb_ext_sz =
> > - sizeof(
> > srp_send_descriptor_t ) -
> > - SRP_MAX_IU_SIZE +
> > -
> > p_session->connection.init_to_targ_iu_sz;
> > - }
> > -
> > cl_obj_lock( &p_hba->obj );
> > + p_session->target_id = (UCHAR)i;
> > p_hba->session_list[i] = p_session;
> > cl_obj_unlock( &p_hba->obj );
> >
> > @@ -787,29 +774,32 @@
> > else
> > {
> > SRP_PRINT( TRACE_LEVEL_ERROR,
> > SRP_DBG_PNP,
> > - ("Session Login Failure Status =
> > %d.\n", status));
> > + ("Session Login for Service Idx
> > %d Failure Status = %d.\n", i, status));
> > + cl_obj_destroy( &p_session->obj );
> > }
> > +
> > } while ( (status != IB_SUCCESS) && (retry_count < 3) );
> >
> > - if( status != IB_SUCCESS )
> > - {
> > - SRP_PRINT( TRACE_LEVEL_VERBOSE, SRP_DBG_PNP,
> > - ("Session Object ref_cnt = %d\n",
> > p_session->obj.ref_cnt) );
> > - cl_obj_destroy( &p_session->obj );
> > - }
> > }
> >
> > if ( any_ioc_connected == TRUE )
> > {
> > status = IB_SUCCESS;
> > - if ( p_hba->adapter_paused == TRUE )
> > + for( i = 0; i < p_hba->ioc_info.profile.num_svc_entries;
> > i++ )
> > {
> > - SRP_PRINT( TRACE_LEVEL_INFORMATION, SRP_DBG_PNP,
> > - ("Resuming Adapter for %s.\n",
> > - p_hba->ioc_info.profile.id_string) );
> > - p_hba->adapter_paused = FALSE;
> > - StorPortReady( p_hba->p_ext );
> > - //StorPortNotification( BusChangeDetected,
> > p_hba->p_ext, 0 );
> > + p_session = p_hba->session_list[i];
> > +
> > + if( p_session != NULL &&
> > + p_session->connection.state ==
> > SRP_CONNECTED &&
> > + p_hba->session_paused[i] == TRUE )
> > + {
> > + SRP_PRINT( TRACE_LEVEL_INFORMATION,
> > SRP_DBG_PNP,
> > + ("Resuming Adapter Session %d for
> > %s.\n", i,
> > +
> > p_hba->ioc_info.profile.id_string) );
> > +
> > + p_hba->session_paused[i] = FALSE;
> > + StorPortDeviceReady( p_hba->p_ext,
> > SP_UNTAGGED, (UCHAR)i, SP_UNTAGGED );
> > + }
> > }
> > }
> >
> > @@ -818,10 +808,9 @@
> > return status;
> > }
> >
> > -static void
> > -__srp_disconnect_sessions(
> > - IN srp_hba_t
> > *p_hba,
> > - IN BOOLEAN
> > pause_adapter )
> > +void
> > +srp_disconnect_sessions(
> > + IN srp_hba_t
> > *p_hba )
> > {
> > uint32_t i;
> > srp_session_t *p_session;
> > @@ -834,72 +823,15 @@
> > {
> > if ( p_hba->session_list[i] != NULL )
> > {
> > - break;
> > + p_session = p_hba->session_list[i];
> > + p_hba->session_list[i] = NULL;
> > + p_session->connection.state =
> > SRP_CONNECT_FAILURE;
> > + srp_session_failed( p_session );
> > }
> > }
> >
> > cl_obj_unlock( &p_hba->obj );
> >
> > - if ( i == p_hba->ioc_info.profile.num_svc_entries )
> > - {
> > - SRP_PRINT( TRACE_LEVEL_INFORMATION, SRP_DBG_PNP,
> > - ("No current connections to %s.\n",
> > - p_hba->ioc_info.profile.id_string) );
> > - goto exit;
> > - }
> > -
> > - SRP_PRINT( TRACE_LEVEL_INFORMATION, SRP_DBG_PNP,
> > - ("Current path to %s has been lost.\n",
> > - p_hba->ioc_info.profile.id_string) );
> > -
> > - p_hba->p_srp_path_record = NULL;
> > -
> > - if ( pause_adapter == TRUE )
> > - {
> > - if ( p_hba->adapter_paused == FALSE )
> > - {
> > - p_hba->adapter_paused = TRUE;
> > - StorPortBusy( p_hba->p_ext, (ULONG)-1 );
> > - StorPortCompleteRequest( p_hba->p_ext,
> > -
> > SP_UNTAGGED,
> > -
> > SP_UNTAGGED,
> > -
> > SP_UNTAGGED,
> > -
> > SRB_STATUS_BUSY );
> > - SRP_PRINT( TRACE_LEVEL_INFORMATION, SRP_DBG_PNP,
> > - ("Pausing Adapter for %s.\n",
> > - p_hba->ioc_info.profile.id_string) );
> > - }
> > - }
> > -
> > - /* Destroy all the connections. */
> > - SRP_PRINT( TRACE_LEVEL_INFORMATION, SRP_DBG_PNP,
> > - ("Destroy all connections to %s.\n",
> > - p_hba->ioc_info.profile.id_string) );
> > -
> > - for ( i = 0; i < p_hba->ioc_info.profile.num_svc_entries; i++ )
> > - {
> > - cl_obj_lock( &p_hba->obj );
> > - p_session = p_hba->session_list[i];
> > - p_hba->session_list[i] = NULL;
> > - cl_obj_unlock( &p_hba->obj );
> > -
> > - if ( p_session != NULL )
> > - {
> > - SRP_PRINT( TRACE_LEVEL_VERBOSE, SRP_DBG_PNP,
> > - ("Session Object ref_cnt = %d\n",
> > p_session->obj.ref_cnt) );
> > - __srp_cleanup_session ( &p_session->obj );
> > - cl_obj_destroy( &p_session->obj );
> > - }
> > - else
> > - {
> > - SRP_PRINT( TRACE_LEVEL_WARNING, SRP_DBG_PNP,
> > - ("Session for Target ID %d on %s is
> > NULL.\n",
> > - i,
> > - p_hba->ioc_info.profile.id_string) );
> > // <-- OK in a shutdown or target disconnect
> > - }
> > - }
> > -
> > -exit:
> > SRP_EXIT( SRP_DBG_PNP );
> > }
> >
> > @@ -1040,11 +972,16 @@
> >
> > SRP_PRINT( TRACE_LEVEL_INFORMATION, SRP_DBG_PNP,
> > ("Hey!!! Our IOC went away.\n") );
> > -
> > - __srp_disconnect_sessions( p_hba, FALSE );
> > +
> > + if( !p_hba->adapter_stopped )
> > + p_hba->adapter_stopped = TRUE;
> > +
> > + srp_disconnect_sessions( p_hba );
> > __srp_remove_path_records( p_hba );
> > +
> > SRP_PRINT( TRACE_LEVEL_VERBOSE, SRP_DBG_PNP,
> > - ("HBA Object ref_cnt = %d\n",
> > p_hba->obj.ref_cnt) );
> > + ("IB_PNP_IOC_REMOVE HBA Object ref_cnt =
> > %d\n", p_hba->obj.ref_cnt ) );
> > +
> > break;
> >
> > case IB_PNP_IOC_PATH_ADD:
> > @@ -1068,6 +1005,9 @@
> >
> > p_hba->ioc_info.profile.id_string) );
> > status = __srp_connect_path( p_hba );
> > }
> > +
> > + SRP_PRINT( TRACE_LEVEL_VERBOSE, SRP_DBG_PNP,
> > + (" IOC_PATH ADD HBA Object ref_cnt =
> > %d\n", p_hba->obj.ref_cnt ) );
> > break;
> >
> > case IB_PNP_IOC_PATH_REMOVE:
> > @@ -1088,13 +1028,8 @@
> >
> > if ( g_srp_system_shutdown ==
> > FALSE )
> > {
> > -
> > __srp_disconnect_sessions( p_hba, TRUE );
> > - status =
> > __srp_connect_path( p_hba );
> > + srp_disconnect_sessions(
> > p_hba );
> > }
> > - else
> > - {
> > -
> > __srp_disconnect_sessions( p_hba, FALSE );
> > - }
> > }
> >
> > cl_free( p_srp_path_record );
> > Index: srp/kernel/srp_hba.h
> > ===================================================================
> > --- srp/kernel/srp_hba.h (revision 1026)
> > +++ srp/kernel/srp_hba.h (working copy)
> > @@ -74,13 +74,13 @@
> > srp_path_record_t *p_srp_path_record;
> > cl_qlist_t path_record_list;
> > cl_spinlock_t path_record_list_lock;
> > - BOOLEAN adapter_paused;
> > + BOOLEAN adapter_stopped;
> >
> > uint32_t max_sg;
> > uint32_t max_srb_ext_sz;
> > -
> > /* List of sessions indexed by target id */
> > p_srp_session_t
> > session_list[SRP_MAX_SERVICE_ENTRIES];
> > + BOOLEAN
> > session_paused[SRP_MAX_SERVICE_ENTRIES];
> > } srp_hba_t;
> >
> >
> > @@ -93,4 +93,8 @@
> > IN cl_obj_t* const
> > p_drv_obj,
> > OUT struct _srp_ext* const
> > p_ext );
> >
> > +void
> > +srp_disconnect_sessions(
> > + IN srp_hba_t
> > *p_hba );
> > +
> > #endif /* _SRP_HBA_H_ */
> > Index: srp/kernel/srp_session.c
> > ===================================================================
> > --- srp/kernel/srp_session.c (revision 1026)
> > +++ srp/kernel/srp_session.c (working copy)
> > @@ -40,10 +40,6 @@
> > #include "srp_session.h"
> > #include <stdlib.h>
> >
> > -#if DBG
> > -extern void *gp_session;
> > -#endif
> > -
> > /* __srp_destroying_session */
> > /*!
> > Called when session has been marked for destruction @@
> > -230,6 +226,8 @@
> > @param p_hba - pointer to the hba associated with the
> > new session
> > @param ioc_guid - pointer to the target's ioc guid
> > @param p_svc_entry - pointer to the service entry
> > + at param p_path_rec - pointer to path record to use.
> > +
> > @param p_status - pointer to the reason code
> >
> > @return - Pointer to new session or NULL if failure. See
> > p_status for reason code.
> > @@ -238,6 +236,7 @@
> > srp_new_session(
> > IN srp_hba_t *p_hba,
> > IN ib_svc_entry_t *p_svc_entry,
> > + IN ib_path_rec_t *p_path_rec,
> > OUT ib_api_status_t *p_status )
> > {
> > uint64_t target_id_extension;
> > @@ -252,6 +251,11 @@
> > goto exit;
> > }
> >
> > + if( p_path_rec == NULL )
> > + {
> > + goto exit;
> > + }
> > +
> > p_srp_session = (srp_session_t*)cl_zalloc(
> > sizeof(srp_session_t) );
> > if ( p_srp_session == NULL )
> > {
> > @@ -267,8 +271,8 @@
> >
> > &p_hba->ioc_info.profile,
> >
> > p_hba->info.ca_guid,
> >
> > target_id_extension,
> > -
> > &p_hba->p_srp_path_record->path_rec,
> > -
> > p_svc_entry->id );
> > +
> > p_path_rec,
> > +
> > p_svc_entry->id );
> > if ( *p_status != IB_SUCCESS )
> > {
> > cl_free( p_srp_session );
> > @@ -306,11 +310,6 @@
> > SRP_PRINT( TRACE_LEVEL_VERBOSE, SRP_DBG_DEBUG,
> > ("After Insert Rel Session Object ref_cnt = %d\n",
> > p_srp_session->obj.ref_cnt) );
> > -
> > -#if DBG
> > - gp_session = p_srp_session;
> > -#endif
> > -
> > exit:
> > SRP_EXIT( SRP_DBG_SESSION );
> >
> > @@ -348,13 +347,243 @@
> >
> > (uint8_t)p_srp_session->p_hba->ioc_info.profile.send_msg_depth,
> > p_srp_session );
> >
> > - if ( status != IB_SUCCESS )
> > - { // clean resources, taken upon login
> > - srp_close_ca( &p_srp_session->hca );
> > - srp_destroy_descriptors( &p_srp_session->descriptors );
> > - }
> > -
> > exit:
> > SRP_EXIT( SRP_DBG_SESSION );
> > return ( status );
> > }
> > +
> > +void
> > +srp_session_failed(
> > +IN srp_session_t* p_srp_session )
> > +{
> > +
> > + SRP_ENTER( SRP_DBG_SESSION );
> > +
> > + if( !p_srp_session )
> > + return;
> > +
> > + cl_obj_lock( &p_srp_session->obj );
> > +
> > + if( p_srp_session->obj.state != CL_INITIALIZED )
> > + {
> > + cl_obj_unlock( &p_srp_session->obj );
> > + return;
> > + }
> > +
> > + if( p_srp_session->connection.state != SRP_CONNECT_FAILURE )
> > + {
> > + cl_obj_unlock( &p_srp_session->obj );
> > + return;
> > + }
> > + p_srp_session->connection.state = SRP_CONNECTION_CLOSING;
> > +
> > + cl_obj_unlock( &p_srp_session->obj );
> > +
> > + SRP_PRINT( TRACE_LEVEL_WARNING, SRP_DBG_DATA,
> > + ("Session Idx %d failed\n", p_srp_session->target_id )
> > );
> > +
> > + cl_event_signal( &p_srp_session->offload_event ); }
> > +
> > +ib_api_status_t
> > +srp_session_connect(
> > + IN srp_hba_t *p_hba,
> > + IN OUT p_srp_session_t *pp_srp_session,
> > + IN UCHAR svc_idx )
> > +{
> > + ib_api_status_t ib_status;
> > + srp_path_record_t *p_srp_path_rec;
> > + srp_session_t *p_session;
> > + uint64_t target_id_extension;
> > +
> > + SRP_ENTER( SRP_DBG_SESSION );
> > +
> > + if( *pp_srp_session != NULL )
> > + {
> > + return IB_ERROR;
> > + }
> > +
> > + cl_spinlock_acquire( &p_hba->path_record_list_lock );
> > + if( !cl_qlist_count( &p_hba->path_record_list ) )
> > + {
> > + cl_spinlock_release( &p_hba->path_record_list_lock );
> > + return IB_NOT_FOUND;
> > + }
> > +
> > + p_srp_path_rec = (srp_path_record_t *)cl_qlist_head(
> > &p_hba->path_record_list );
> > +
> > + cl_spinlock_release( &p_hba->path_record_list_lock );
> > +
> > + if( p_srp_path_rec == (srp_path_record_t *)cl_qlist_end(
> > &p_hba->path_record_list ) )
> > + {
> > + return IB_NOT_FOUND;
> > + }
> > +
> > + ib_status = __srp_validate_service_entry(
> > &p_hba->p_svc_entries[svc_idx], &target_id_extension );
> > + if( ib_status != IB_SUCCESS )
> > + {
> > + SRP_PRINT( TRACE_LEVEL_WARNING, SRP_DBG_SESSION,
> > + ("Failed validate service entry status %x\n",
> > ib_status ));
> > + return ib_status;
> > + }
> > +
> > + p_session = srp_new_session( p_hba,
> > + &p_hba->p_svc_entries[svc_idx],
> > + &p_srp_path_rec->path_rec,
> > + &ib_status );
> > +
> > + if( ib_status != IB_SUCCESS || p_session == NULL )
> > + {
> > + SRP_PRINT( TRACE_LEVEL_ERROR, SRP_DBG_SESSION,
> > + ("Failed create Session for SVC idx %d status
> > %x\n", svc_idx, ib_status ));
> > +
> > + *pp_srp_session = NULL;
> > +
> > + return ib_status;
> > + }
> > +
> > + ib_status = srp_session_login( p_session );
> > + if( ib_status != IB_SUCCESS )
> > + {
> > + SRP_PRINT( TRACE_LEVEL_ERROR, SRP_DBG_SESSION,
> > + ("Failed Session Login status %x\n", ib_status
> > ));
> > +
> > + *pp_srp_session = NULL;
> > +
> > + cl_obj_destroy( &p_session->obj );
> > +
> > + return ib_status;
> > + }
> > + srp_session_adjust_params( p_session );
> > +
> > + cl_obj_lock( &p_hba->obj );
> > +
> > + p_session->target_id = svc_idx;
> > +
> > + *pp_srp_session = p_session;
> > +
> > + cl_obj_unlock( &p_hba->obj );
> > +
> > +
> > + SRP_EXIT( SRP_DBG_SESSION );
> > + return ib_status;
> > +}
> > +
> > +void
> > +srp_session_adjust_params(
> > + IN srp_session_t *p_session )
> > +{
> > +
> > + if ( ( p_session->p_hba->max_sg >
> > p_session->connection.max_scatter_gather_entries )
> > + && !( p_session->connection.descriptor_format &
> > DBDF_INDIRECT_DATA_BUFFER_DESCRIPTORS) )
> > + {
> > + p_session->p_hba->max_sg =
> > p_session->connection.max_scatter_gather_entries;
> > + }
> > +
> > + if ( p_session->p_hba->max_srb_ext_sz >
> > p_session->connection.init_to_targ_iu_sz )
> > + {
> > + p_session->p_hba->max_srb_ext_sz =
> > + sizeof( srp_send_descriptor_t ) -
> > + SRP_MAX_IU_SIZE +
> > + p_session->connection.init_to_targ_iu_sz;
> > + }
> > +}
> > +
> > +static void
> > +__srp_session_recovery(
> > +IN srp_session_t* p_failed_session ,
> > +IN BOOLEAN reconnect_request )
> > +{
> > + ib_api_status_t ib_status;
> > + srp_hba_t* p_hba;
> > + srp_session_t* p_new;
> > + srp_session_t* p_old;
> > + UCHAR target_id;
> > + int retry_count;
> > +
> > + SRP_ENTER( SRP_DBG_SESSION );
> > +
> > + if( !p_failed_session )
> > + return;
> > + if ( ( p_hba = p_failed_session->p_hba ) == NULL )
> > + return;
> > +
> > + p_old = p_failed_session;
> > + target_id = p_old->target_id;
> > + p_hba->session_list[target_id] = NULL;
> > +
> > + if( !reconnect_request )
> > + {
> > + /* we're done here */
> > + SRP_PRINT( TRACE_LEVEL_WARNING, SRP_DBG_DATA,
> > + ("Session Id: %d won't recover\n",
> > p_old->target_id ) );
> > + cl_obj_destroy( &p_old->obj );
> > + return;
> > + }
> > +
> > + if( !p_hba->session_paused[target_id] )
> > + {
> > + p_hba->session_paused[target_id] = TRUE;
> > +
> > + StorPortDeviceBusy( p_hba->p_ext,
> > + SP_UNTAGGED,
> > + target_id,
> > + SP_UNTAGGED,
> > + (ULONG)-1 );
> > + }
> > +
> > + SRP_PRINT( TRACE_LEVEL_WARNING, SRP_DBG_DATA,
> > + ("Pausing Adapter Session %d\n", target_id ) );
> > +
> > + cl_obj_destroy( &p_old->obj );
> > +
> > + for( retry_count=0; retry_count < 3 ; retry_count++ )
> > + {
> > + ib_status = srp_session_connect( p_hba, &p_new,
> > target_id );
> > +
> > + if( ib_status != IB_SUCCESS )
> > + {
> > + SRP_PRINT( TRACE_LEVEL_WARNING, SRP_DBG_DATA,
> > + ("Failed session idx %d connect\n",
> > target_id ) );
> > +
> > + continue;
> > + }
> > +
> > + p_hba->session_list[target_id] = p_new;
> > +
> > + SRP_PRINT( TRACE_LEVEL_WARNING, SRP_DBG_DATA,
> > + ("Session idx %d connected. Resuming\n",
> > target_id ) );
> > +
> > + StorPortDeviceReady( p_hba->p_ext,
> > + SP_UNTAGGED,
> > + target_id,
> > + SP_UNTAGGED );
> > +
> > + p_hba->session_paused[target_id] = FALSE;
> > +
> > + return;
> > + }
> > +
> > + /* what do we do now ? */
> > + SRP_PRINT( TRACE_LEVEL_WARNING, SRP_DBG_DATA,
> > + ("Session idx %d recovery failed\n", target_id)
> > );
> > +
> > + return;
> > +}
> > +
> > +void
> > +srp_session_recovery_thread(
> > + IN void* const context )
> > +{
> > + srp_session_t* p_session = (srp_session_t *)context;
> > + cl_status_t status;
> > +
> > + if( p_session == NULL )
> > + return;
> > +
> > + cl_event_init( &p_session->offload_event, FALSE);
> > +
> > + status = cl_event_wait_on( &p_session->offload_event,
> > EVENT_NO_TIMEOUT, FALSE );
> > +
> > + __srp_session_recovery( p_session,
> > !p_session->p_hba->adapter_stopped );
> > +}
> > Index: srp/kernel/srp_session.h
> > ===================================================================
> > --- srp/kernel/srp_session.h (revision 1026)
> > +++ srp/kernel/srp_session.h (working copy)
> > @@ -58,6 +58,11 @@
> >
> > SCSI_REQUEST_BLOCK *p_shutdown_srb;
> >
> > + /* keep session level SCSI address */
> > + UCHAR target_id;
> > + cl_event_t offload_event;
> > + cl_thread_t recovery_thread;
> > +
> > #if DBG
> > /* statistics */
> >
> > @@ -95,6 +100,7 @@
> > srp_new_session(
> > IN srp_hba_t *p_hba,
> > IN ib_svc_entry_t *p_svc_entry,
> > + IN ib_path_rec_t *p_path_rec,
> > OUT ib_api_status_t *p_status );
> >
> > ib_api_status_t
> > @@ -105,4 +111,22 @@
> > __srp_cleanup_session(
> > IN cl_obj_t *p_obj );
> >
> > +ib_api_status_t
> > +srp_session_connect(
> > + IN srp_hba_t *p_hba,
> > + IN OUT p_srp_session_t *pp_srp_session,
> > + IN UCHAR svc_idx );
> > +
> > +void
> > +srp_session_adjust_params(
> > + IN srp_session_t *p_session );
> > +
> > +void
> > +srp_session_failed(
> > +IN srp_session_t* p_srp_session );
> > +
> > +void
> > +srp_session_recovery_thread(
> > +IN void* const context );
> > +
> > #endif /* _SRP_SESSION_H_ */
> >
>
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