be2iscsi: Fix updating the boot enteries in sysfs

 During port async event driver should check if there is any boot target
 configured on the adapter. Update sysfs enteries with the boot target
 parameters.

Signed-off-by: Minh Tran <minhduc.tran@emulex.com>
Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Christoph Hellwig <hch@lst.de>

diff --git a/drivers/scsi/be2iscsi/be_cmds.c b/drivers/scsi/be2iscsi/be_cmds.c
index ea4477f..80d97f3 100644 (file)
--- a/drivers/scsi/be2iscsi/be_cmds.c
+++ b/drivers/scsi/be2iscsi/be_cmds.c
@@ -275,6 +275,19 @@ bool is_link_state_evt(u32 trailer)
                  ASYNC_EVENT_CODE_LINK_STATE);
 }
 
+static bool is_iscsi_evt(u32 trailer)
+{
+       return ((trailer >> ASYNC_TRAILER_EVENT_CODE_SHIFT) &
+                 ASYNC_TRAILER_EVENT_CODE_MASK) ==
+                 ASYNC_EVENT_CODE_ISCSI;
+}
+
+static int iscsi_evt_type(u32 trailer)
+{
+       return (trailer >> ASYNC_TRAILER_EVENT_TYPE_SHIFT) &
+                ASYNC_TRAILER_EVENT_TYPE_MASK;
+}
+
 static inline bool be_mcc_compl_is_new(struct be_mcc_compl *compl)
 {
        if (compl->flags != 0) {
@@ -438,7 +451,7 @@ void beiscsi_async_link_state_process(struct beiscsi_hba *phba,
        } else if ((evt->port_link_status & ASYNC_EVENT_LINK_UP) ||
                    ((evt->port_link_status & ASYNC_EVENT_LOGICAL) &&
                     (evt->port_fault == BEISCSI_PHY_LINK_FAULT_NONE))) {
-               phba->state = BE_ADAPTER_LINK_UP;
+               phba->state = BE_ADAPTER_LINK_UP | BE_ADAPTER_CHECK_BOOT;
 
                beiscsi_log(phba, KERN_ERR,
                            BEISCSI_LOG_CONFIG | BEISCSI_LOG_INIT,
@@ -461,7 +474,28 @@ int beiscsi_process_mcc(struct beiscsi_hba *phba)
                                /* Interpret compl as a async link evt */
                                beiscsi_async_link_state_process(phba,
                                   (struct be_async_event_link_state *) compl);
-                       else
+                       else if (is_iscsi_evt(compl->flags)) {
+                               switch (iscsi_evt_type(compl->flags)) {
+                               case ASYNC_EVENT_NEW_ISCSI_TGT_DISC:
+                               case ASYNC_EVENT_NEW_ISCSI_CONN:
+                               case ASYNC_EVENT_NEW_TCP_CONN:
+                                       phba->state |= BE_ADAPTER_CHECK_BOOT;
+                                       beiscsi_log(phba, KERN_ERR,
+                                                   BEISCSI_LOG_CONFIG |
+                                                   BEISCSI_LOG_MBOX,
+                                                   "BC_%d : Async iscsi Event,"
+                                                   " flags handled = 0x%08x\n",
+                                                   compl->flags);
+                                       break;
+                               default:
+                                       beiscsi_log(phba, KERN_ERR,
+                                                   BEISCSI_LOG_CONFIG |
+                                                   BEISCSI_LOG_MBOX,
+                                                   "BC_%d : Unsupported Async"
+                                                   " Event, flags = 0x%08x\n",
+                                                   compl->flags);
+                               }
+                       } else
                                beiscsi_log(phba, KERN_ERR,
                                            BEISCSI_LOG_CONFIG |
                                            BEISCSI_LOG_MBOX,

diff --git a/drivers/scsi/be2iscsi/be_cmds.h b/drivers/scsi/be2iscsi/be_cmds.h
index ccda0b6..9889743 100644 (file)
--- a/drivers/scsi/be2iscsi/be_cmds.h
+++ b/drivers/scsi/be2iscsi/be_cmds.h
@@ -118,6 +118,14 @@ struct be_mcc_compl {
 #define ASYNC_TRAILER_EVENT_CODE_SHIFT 8       /* bits 8 - 15 */
 #define ASYNC_TRAILER_EVENT_CODE_MASK  0xFF
 #define ASYNC_EVENT_CODE_LINK_STATE    0x1
+#define ASYNC_EVENT_CODE_ISCSI         0x4
+
+#define ASYNC_TRAILER_EVENT_TYPE_SHIFT 16      /* bits 16 - 23 */
+#define ASYNC_TRAILER_EVENT_TYPE_MASK  0xF
+#define ASYNC_EVENT_NEW_ISCSI_TGT_DISC 0x4
+#define ASYNC_EVENT_NEW_ISCSI_CONN     0x5
+#define ASYNC_EVENT_NEW_TCP_CONN       0x7
+
 struct be_async_event_trailer {
        u32 code;
 };

diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 9563415..0762b8e 100644 (file)
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -4377,6 +4377,10 @@ static int beiscsi_setup_boot_info(struct beiscsi_hba *phba)
 {
        struct iscsi_boot_kobj *boot_kobj;
 
+       /* it has been created previously */
+       if (phba->boot_kset)
+               return 0;
+
        /* get boot info using mgmt cmd */
        if (beiscsi_get_boot_info(phba))
                /* Try to see if we can carry on without this */
@@ -5335,6 +5339,14 @@ static void be_eqd_update(struct beiscsi_hba *phba)
        }
 }
 
+static void be_check_boot_session(struct beiscsi_hba *phba)
+{
+       if (beiscsi_setup_boot_info(phba))
+               beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+                           "BM_%d : Could not set up "
+                           "iSCSI boot info on async event.\n");
+}
+
 /*
  * beiscsi_hw_health_check()- Check adapter health
  * @work: work item to check HW health
@@ -5350,6 +5362,11 @@ beiscsi_hw_health_check(struct work_struct *work)
 
        be_eqd_update(phba);
 
+       if (phba->state & BE_ADAPTER_CHECK_BOOT) {
+               phba->state &= ~BE_ADAPTER_CHECK_BOOT;
+               be_check_boot_session(phba);
+       }
+
        beiscsi_ue_detect(phba);
 
        schedule_delayed_work(&phba->beiscsi_hw_check_task,

diff --git a/drivers/scsi/be2iscsi/be_main.h b/drivers/scsi/be2iscsi/be_main.h
index 0ca9d2d..1e3428a 100644 (file)
--- a/drivers/scsi/be2iscsi/be_main.h
+++ b/drivers/scsi/be2iscsi/be_main.h
@@ -104,6 +104,7 @@
 #define BE_ADAPTER_LINK_DOWN   0x002
 #define BE_ADAPTER_PCI_ERR     0x004
 #define BE_ADAPTER_STATE_SHUTDOWN      0x008
+#define BE_ADAPTER_CHECK_BOOT  0x010
 
 
 #define BEISCSI_CLEAN_UNLOAD   0x01