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[SCSI] mpt fusion: Link speed change display support
When there is state change in FC links, a message is displayed with old and new link speed. signed-off-by: Sathya Prakash <sathya.prakash@lsi.com> Acked-by: Eric Moore <Eric.Moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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2 changed files with 68 additions and 0 deletions
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@ -698,6 +698,8 @@ typedef struct _MPT_ADAPTER
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struct work_struct fc_setup_reset_work;
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struct list_head fc_rports;
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struct work_struct fc_lsc_work;
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u8 fc_link_speed[2];
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spinlock_t fc_rescan_work_lock;
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struct work_struct fc_rescan_work;
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char fc_rescan_work_q_name[KOBJ_NAME_LEN];
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@ -674,6 +674,50 @@ mptfc_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
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return mptscsih_qcmd(SCpnt,done);
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}
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/*
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* mptfc_display_port_link_speed - displaying link speed
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* @ioc: Pointer to MPT_ADAPTER structure
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* @portnum: IOC Port number
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* @pp0dest: port page0 data payload
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*
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*/
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static void
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mptfc_display_port_link_speed(MPT_ADAPTER *ioc, int portnum, FCPortPage0_t *pp0dest)
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{
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u8 old_speed, new_speed, state;
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char *old, *new;
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if (portnum >= 2)
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return;
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old_speed = ioc->fc_link_speed[portnum];
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new_speed = pp0dest->CurrentSpeed;
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state = pp0dest->PortState;
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if (state != MPI_FCPORTPAGE0_PORTSTATE_OFFLINE &&
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new_speed != MPI_FCPORTPAGE0_CURRENT_SPEED_UKNOWN) {
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old = old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
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old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
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old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
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"Unknown";
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new = new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
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new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
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new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
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"Unknown";
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if (old_speed == 0)
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printk(MYIOC_s_NOTE_FMT
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"FC Link Established, Speed = %s\n",
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ioc->name, new);
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else if (old_speed != new_speed)
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printk(MYIOC_s_WARN_FMT
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"FC Link Speed Change, Old Speed = %s, New Speed = %s\n",
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ioc->name, old, new);
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ioc->fc_link_speed[portnum] = new_speed;
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}
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}
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/*
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* mptfc_GetFcPortPage0 - Fetch FCPort config Page0.
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* @ioc: Pointer to MPT_ADAPTER structure
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@ -773,6 +817,7 @@ mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
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" complete.\n",
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ioc->name);
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}
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mptfc_display_port_link_speed(ioc, portnum, pp0dest);
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}
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pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma);
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@ -1022,6 +1067,18 @@ mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum)
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}
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static void
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mptfc_link_status_change(struct work_struct *work)
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{
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MPT_ADAPTER *ioc =
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container_of(work, MPT_ADAPTER, fc_rescan_work);
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int ii;
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for (ii=0; ii < ioc->facts.NumberOfPorts; ii++)
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(void) mptfc_GetFcPortPage0(ioc, ii);
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}
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static void
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mptfc_setup_reset(struct work_struct *work)
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{
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@ -1163,6 +1220,7 @@ mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
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spin_lock_init(&ioc->fc_rescan_work_lock);
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INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices);
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INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset);
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INIT_WORK(&ioc->fc_lsc_work, mptfc_link_status_change);
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spin_lock_irqsave(&ioc->FreeQlock, flags);
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@ -1337,6 +1395,14 @@ mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
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}
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spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
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break;
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case MPI_EVENT_LINK_STATUS_CHANGE:
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spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
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if (ioc->fc_rescan_work_q) {
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queue_work(ioc->fc_rescan_work_q,
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&ioc->fc_lsc_work);
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}
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spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
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break;
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default:
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rc = mptscsih_event_process(ioc,pEvReply);
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break;
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