Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull first round of SCSI updates from James Bottomley:
 "The most important feature of this patch set is the new async
  infrastructure that makes sure async_synchronize_full() synchronizes
  all domains and allows us to remove all the hacks (like having
  scsi_complete_async_scans() in the device base code) and means that
  the async infrastructure will "just work" in future.

  The rest is assorted driver updates (aacraid, bnx2fc, virto-scsi,
  megaraid, bfa, lpfc, qla2xxx, qla4xxx) plus a lot of infrastructure
  work in sas and FC.

  Signed-off-by: James Bottomley <JBottomley@Parallels.com>"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (97 commits)
  [SCSI] Revert "[SCSI] fix async probe regression"
  [SCSI] cleanup usages of scsi_complete_async_scans
  [SCSI] queue async scan work to an async_schedule domain
  [SCSI] async: make async_synchronize_full() flush all work regardless of domain
  [SCSI] async: introduce 'async_domain' type
  [SCSI] bfa: Fix to set correct return error codes and misc cleanup.
  [SCSI] aacraid: Series 7 Async. (performance) mode support
  [SCSI] aha152x: Allow use on 64bit systems
  [SCSI] virtio-scsi: Add vdrv->scan for post VIRTIO_CONFIG_S_DRIVER_OK LUN scanning
  [SCSI] bfa: squelch lockdep complaint with a spin_lock_init
  [SCSI] qla2xxx: remove unnecessary reads of PCI_CAP_ID_EXP
  [SCSI] qla4xxx: remove unnecessary read of PCI_CAP_ID_EXP
  [SCSI] ufs: fix incorrect return value about SUCCESS and FAILED
  [SCSI] ufs: reverse the ufshcd_is_device_present logic
  [SCSI] ufs: use module_pci_driver
  [SCSI] usb-storage: update usb devices for write cache quirk in quirk list.
  [SCSI] usb-storage: add support for write cache quirk
  [SCSI] set to WCE if usb cache quirk is present.
  [SCSI] virtio-scsi: hotplug support for virtio-scsi
  [SCSI] virtio-scsi: split scatterlist per target
  ...

1 files changed, 39 insertions, 30 deletions

diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c
index c1402fb..f04d15c 100644
--- a/drivers/scsi/libfc/fc_lport.c
+++ b/drivers/scsi/libfc/fc_lport.c
@@ -299,47 +299,54 @@ EXPORT_SYMBOL(fc_get_host_speed);
  */
 struct fc_host_statistics *fc_get_host_stats(struct Scsi_Host *shost)
 {
-	struct fc_host_statistics *fcoe_stats;
+	struct fc_host_statistics *fc_stats;
 	struct fc_lport *lport = shost_priv(shost);
 	struct timespec v0, v1;
 	unsigned int cpu;
 	u64 fcp_in_bytes = 0;
 	u64 fcp_out_bytes = 0;
 
-	fcoe_stats = &lport->host_stats;
-	memset(fcoe_stats, 0, sizeof(struct fc_host_statistics));
+	fc_stats = &lport->host_stats;
+	memset(fc_stats, 0, sizeof(struct fc_host_statistics));
 
 	jiffies_to_timespec(jiffies, &v0);
 	jiffies_to_timespec(lport->boot_time, &v1);
-	fcoe_stats->seconds_since_last_reset = (v0.tv_sec - v1.tv_sec);
+	fc_stats->seconds_since_last_reset = (v0.tv_sec - v1.tv_sec);
 
 	for_each_possible_cpu(cpu) {
-		struct fcoe_dev_stats *stats;
-
-		stats = per_cpu_ptr(lport->dev_stats, cpu);
-
-		fcoe_stats->tx_frames += stats->TxFrames;
-		fcoe_stats->tx_words += stats->TxWords;
-		fcoe_stats->rx_frames += stats->RxFrames;
-		fcoe_stats->rx_words += stats->RxWords;
-		fcoe_stats->error_frames += stats->ErrorFrames;
-		fcoe_stats->invalid_crc_count += stats->InvalidCRCCount;
-		fcoe_stats->fcp_input_requests += stats->InputRequests;
-		fcoe_stats->fcp_output_requests += stats->OutputRequests;
-		fcoe_stats->fcp_control_requests += stats->ControlRequests;
+		struct fc_stats *stats;
+
+		stats = per_cpu_ptr(lport->stats, cpu);
+
+		fc_stats->tx_frames += stats->TxFrames;
+		fc_stats->tx_words += stats->TxWords;
+		fc_stats->rx_frames += stats->RxFrames;
+		fc_stats->rx_words += stats->RxWords;
+		fc_stats->error_frames += stats->ErrorFrames;
+		fc_stats->invalid_crc_count += stats->InvalidCRCCount;
+		fc_stats->fcp_input_requests += stats->InputRequests;
+		fc_stats->fcp_output_requests += stats->OutputRequests;
+		fc_stats->fcp_control_requests += stats->ControlRequests;
 		fcp_in_bytes += stats->InputBytes;
 		fcp_out_bytes += stats->OutputBytes;
-		fcoe_stats->link_failure_count += stats->LinkFailureCount;
+		fc_stats->fcp_packet_alloc_failures += stats->FcpPktAllocFails;
+		fc_stats->fcp_packet_aborts += stats->FcpPktAborts;
+		fc_stats->fcp_frame_alloc_failures += stats->FcpFrameAllocFails;
+		fc_stats->link_failure_count += stats->LinkFailureCount;
 	}
-	fcoe_stats->fcp_input_megabytes = div_u64(fcp_in_bytes, 1000000);
-	fcoe_stats->fcp_output_megabytes = div_u64(fcp_out_bytes, 1000000);
-	fcoe_stats->lip_count = -1;
-	fcoe_stats->nos_count = -1;
-	fcoe_stats->loss_of_sync_count = -1;
-	fcoe_stats->loss_of_signal_count = -1;
-	fcoe_stats->prim_seq_protocol_err_count = -1;
-	fcoe_stats->dumped_frames = -1;
-	return fcoe_stats;
+	fc_stats->fcp_input_megabytes = div_u64(fcp_in_bytes, 1000000);
+	fc_stats->fcp_output_megabytes = div_u64(fcp_out_bytes, 1000000);
+	fc_stats->lip_count = -1;
+	fc_stats->nos_count = -1;
+	fc_stats->loss_of_sync_count = -1;
+	fc_stats->loss_of_signal_count = -1;
+	fc_stats->prim_seq_protocol_err_count = -1;
+	fc_stats->dumped_frames = -1;
+
+	/* update exches stats */
+	fc_exch_update_stats(lport);
+
+	return fc_stats;
 }
 EXPORT_SYMBOL(fc_get_host_stats);
 
@@ -973,7 +980,8 @@ drop:
 	rcu_read_unlock();
 	FC_LPORT_DBG(lport, "dropping unexpected frame type %x\n", fh->fh_type);
 	fc_frame_free(fp);
-	lport->tt.exch_done(sp);
+	if (sp)
+		lport->tt.exch_done(sp);
 }
 
 /**
@@ -1590,8 +1598,9 @@ static void fc_lport_timeout(struct work_struct *work)
 	case LPORT_ST_RPA:
 	case LPORT_ST_DHBA:
 	case LPORT_ST_DPRT:
-		fc_lport_enter_ms(lport, lport->state);
-		break;
+		FC_LPORT_DBG(lport, "Skipping lport state %s to SCR\n",
+			     fc_lport_state(lport));
+		/* fall thru */
 	case LPORT_ST_SCR:
 		fc_lport_enter_scr(lport);
 		break;