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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>
This commit is contained in:
Prakash, Sathya 2007-08-14 16:19:32 +05:30 committed by James Bottomley
parent 56af97ae47
commit eb5329f40c
2 changed files with 68 additions and 0 deletions
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2
drivers/message/fusion/mptbase.h
View File

@ -698,6 +698,8 @@ typedef struct _MPT_ADAPTER
struct work_struct fc_setup_reset_work;
struct list_head fc_rports;
struct work_struct fc_lsc_work;
u8 fc_link_speed[2];
spinlock_t fc_rescan_work_lock;
struct work_struct fc_rescan_work;
char fc_rescan_work_q_name[KOBJ_NAME_LEN];

66
drivers/message/fusion/mptfc.c
View File

@ -674,6 +674,50 @@ mptfc_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
return mptscsih_qcmd(SCpnt,done);
}
/*
* mptfc_display_port_link_speed - displaying link speed
* @ioc: Pointer to MPT_ADAPTER structure
* @portnum: IOC Port number
* @pp0dest: port page0 data payload
*
*/
static void
mptfc_display_port_link_speed(MPT_ADAPTER *ioc, int portnum, FCPortPage0_t *pp0dest)
{
u8 old_speed, new_speed, state;
char *old, *new;
if (portnum >= 2)
return;
old_speed = ioc->fc_link_speed[portnum];
new_speed = pp0dest->CurrentSpeed;
state = pp0dest->PortState;
if (state != MPI_FCPORTPAGE0_PORTSTATE_OFFLINE &&
new_speed != MPI_FCPORTPAGE0_CURRENT_SPEED_UKNOWN) {
old = old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
"Unknown";
new = new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" :
new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" :
new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" :
"Unknown";
if (old_speed == 0)
printk(MYIOC_s_NOTE_FMT
"FC Link Established, Speed = %s\n",
ioc->name, new);
else if (old_speed != new_speed)
printk(MYIOC_s_WARN_FMT
"FC Link Speed Change, Old Speed = %s, New Speed = %s\n",
ioc->name, old, new);
ioc->fc_link_speed[portnum] = new_speed;
}
}
/*
* mptfc_GetFcPortPage0 - Fetch FCPort config Page0.
* @ioc: Pointer to MPT_ADAPTER structure
@ -773,6 +817,7 @@ mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum)
" complete.\n",
ioc->name);
}
mptfc_display_port_link_speed(ioc, portnum, pp0dest);
}
pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma);
@ -1022,6 +1067,18 @@ mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum)
}
static void
mptfc_link_status_change(struct work_struct *work)
{
MPT_ADAPTER *ioc =
container_of(work, MPT_ADAPTER, fc_rescan_work);
int ii;
for (ii=0; ii < ioc->facts.NumberOfPorts; ii++)
(void) mptfc_GetFcPortPage0(ioc, ii);
}
static void
mptfc_setup_reset(struct work_struct *work)
{
@ -1163,6 +1220,7 @@ mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
spin_lock_init(&ioc->fc_rescan_work_lock);
INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices);
INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset);
INIT_WORK(&ioc->fc_lsc_work, mptfc_link_status_change);
spin_lock_irqsave(&ioc->FreeQlock, flags);
@ -1337,6 +1395,14 @@ mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
}
spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
break;
case MPI_EVENT_LINK_STATUS_CHANGE:
spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
if (ioc->fc_rescan_work_q) {
queue_work(ioc->fc_rescan_work_q,
&ioc->fc_lsc_work);
}
spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
break;
default:
rc = mptscsih_event_process(ioc,pEvReply);
break;