[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>
diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c
index 2b3e27a..aadb071 100644
--- a/drivers/message/fusion/mptfc.c
+++ b/drivers/message/fusion/mptfc.c
@@ -675,6 +675,50 @@
}
/*
+ * 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
* @portnum: IOC Port number
@@ -773,6 +817,7 @@
" complete.\n",
ioc->name);
}
+ mptfc_display_port_link_speed(ioc, portnum, pp0dest);
}
pci_free_consistent(ioc->pcidev, data_sz, (u8 *) ppage0_alloc, page0_dma);
@@ -1023,6 +1068,18 @@
}
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)
{
MPT_ADAPTER *ioc =
@@ -1163,6 +1220,7 @@
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 @@
}
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;