Merge commit 'v2.6.28-rc1' into sched/urgent

1 files changed, 74 insertions, 22 deletions

diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index e0e018d1265..60a9e6e9384 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -34,7 +34,14 @@ struct lpfc_sli2_slim;
 #define LPFC_IOCB_LIST_CNT	2250	/* list of IOCBs for fast-path usage. */
 #define LPFC_Q_RAMP_UP_INTERVAL 120     /* lun q_depth ramp up interval */
 #define LPFC_VNAME_LEN		100	/* vport symbolic name length */
-
+#define LPFC_TGTQ_INTERVAL	40000	/* Min amount of time between tgt
+					   queue depth change in millisecs */
+#define LPFC_TGTQ_RAMPUP_PCENT	5	/* Target queue rampup in percentage */
+#define LPFC_MIN_TGT_QDEPTH	100
+#define LPFC_MAX_TGT_QDEPTH	0xFFFF
+
+#define  LPFC_MAX_BUCKET_COUNT 20	/* Maximum no. of buckets for stat data
+					   collection. */
 /*
  * Following time intervals are used of adjusting SCSI device
  * queue depths when there are driver resource error or Firmware
@@ -49,6 +56,9 @@ struct lpfc_sli2_slim;
 #define LPFC_HB_MBOX_INTERVAL   5	/* Heart beat interval in seconds. */
 #define LPFC_HB_MBOX_TIMEOUT    30	/* Heart beat timeout  in seconds. */
 
+/* Error Attention event polling interval */
+#define LPFC_ERATT_POLL_INTERVAL	5 /* EATT poll interval in seconds */
+
 /* Define macros for 64 bit support */
 #define putPaddrLow(addr)    ((uint32_t) (0xffffffff & (u64)(addr)))
 #define putPaddrHigh(addr)   ((uint32_t) (0xffffffff & (((u64)(addr))>>32)))
@@ -60,6 +70,9 @@ struct lpfc_sli2_slim;
 
 #define MAX_HBAEVT	32
 
+/* Number of MSI-X vectors the driver uses */
+#define LPFC_MSIX_VECTORS	2
+
 /* lpfc wait event data ready flag */
 #define LPFC_DATA_READY		(1<<0)
 
@@ -357,6 +370,7 @@ struct lpfc_vport {
 	uint32_t cfg_log_verbose;
 	uint32_t cfg_max_luns;
 	uint32_t cfg_enable_da_id;
+	uint32_t cfg_max_scsicmpl_time;
 
 	uint32_t dev_loss_tmo_changed;
 
@@ -369,6 +383,8 @@ struct lpfc_vport {
 	struct lpfc_debugfs_trc *disc_trc;
 	atomic_t disc_trc_cnt;
 #endif
+	uint8_t stat_data_enabled;
+	uint8_t stat_data_blocked;
 };
 
 struct hbq_s {
@@ -407,10 +423,11 @@ struct lpfc_hba {
 	struct lpfc_sli sli;
 	uint32_t sli_rev;		/* SLI2 or SLI3 */
 	uint32_t sli3_options;		/* Mask of enabled SLI3 options */
-#define LPFC_SLI3_ENABLED	 0x01
-#define LPFC_SLI3_HBQ_ENABLED	 0x02
-#define LPFC_SLI3_NPIV_ENABLED	 0x04
-#define LPFC_SLI3_VPORT_TEARDOWN 0x08
+#define LPFC_SLI3_HBQ_ENABLED		0x01
+#define LPFC_SLI3_NPIV_ENABLED		0x02
+#define LPFC_SLI3_VPORT_TEARDOWN	0x04
+#define LPFC_SLI3_CRP_ENABLED		0x08
+#define LPFC_SLI3_INB_ENABLED		0x10
 	uint32_t iocb_cmd_size;
 	uint32_t iocb_rsp_size;
 
@@ -422,10 +439,20 @@ struct lpfc_hba {
 #define LS_NPIV_FAB_SUPPORTED 0x2	/* Fabric supports NPIV */
 #define LS_IGNORE_ERATT       0x4	/* intr handler should ignore ERATT */
 
-	struct lpfc_sli2_slim *slim2p;
-	struct lpfc_dmabuf hbqslimp;
+	uint32_t hba_flag;	/* hba generic flags */
+#define HBA_ERATT_HANDLED	0x1 /* This flag is set when eratt handled */
+
+	struct lpfc_dmabuf slim2p;
 
-	dma_addr_t slim2p_mapping;
+	MAILBOX_t *mbox;
+	uint32_t *inb_ha_copy;
+	uint32_t *inb_counter;
+	uint32_t inb_last_counter;
+	uint32_t ha_copy;
+	struct _PCB *pcb;
+	struct _IOCB *IOCBs;
+
+	struct lpfc_dmabuf hbqslimp;
 
 	uint16_t pci_cfg_value;
 
@@ -492,7 +519,7 @@ struct lpfc_hba {
 
 	wait_queue_head_t    work_waitq;
 	struct task_struct   *worker_thread;
-	long data_flags;
+	unsigned long data_flags;
 
 	uint32_t hbq_in_use;		/* HBQs in use flag */
 	struct list_head hbqbuf_in_list;  /* in-fly hbq buffer list */
@@ -514,6 +541,7 @@ struct lpfc_hba {
 	void __iomem *HCregaddr;	/* virtual address for host ctl reg */
 
 	struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */
+	struct lpfc_pgp   *port_gp;
 	uint32_t __iomem  *hbq_put;     /* Address in SLIM to HBQ put ptrs */
 	uint32_t          *hbq_get;     /* Host mem address of HBQ get ptrs */
 
@@ -536,6 +564,7 @@ struct lpfc_hba {
 	uint8_t soft_wwn_enable;
 
 	struct timer_list fcp_poll_timer;
+	struct timer_list eratt_poll;
 
 	/*
 	 * stat  counters
@@ -565,7 +594,7 @@ struct lpfc_hba {
 
 	struct fc_host_statistics link_stats;
 	enum intr_type_t intr_type;
-	struct msix_entry msix_entries[1];
+	struct msix_entry msix_entries[LPFC_MSIX_VECTORS];
 
 	struct list_head port_list;
 	struct lpfc_vport *pport;	/* physical lpfc_vport pointer */
@@ -605,6 +634,7 @@ struct lpfc_hba {
 	unsigned long last_completion_time;
 	struct timer_list hb_tmofunc;
 	uint8_t hb_outstanding;
+	enum hba_temp_state over_temp_state;
 	/* ndlp reference management */
 	spinlock_t ndlp_lock;
 	/*
@@ -613,7 +643,19 @@ struct lpfc_hba {
 	 */
 #define QUE_BUFTAG_BIT  (1<<31)
 	uint32_t buffer_tag_count;
-	enum hba_temp_state over_temp_state;
+	int wait_4_mlo_maint_flg;
+	wait_queue_head_t wait_4_mlo_m_q;
+	/* data structure used for latency data collection */
+#define LPFC_NO_BUCKET	   0
+#define LPFC_LINEAR_BUCKET 1
+#define LPFC_POWER2_BUCKET 2
+	uint8_t  bucket_type;
+	uint32_t bucket_base;
+	uint32_t bucket_step;
+
+/* Maximum number of events that can be outstanding at any time*/
+#define LPFC_MAX_EVT_COUNT 512
+	atomic_t fast_event_count;
 };
 
 static inline struct Scsi_Host *
@@ -650,15 +692,25 @@ lpfc_worker_wake_up(struct lpfc_hba *phba)
 	return;
 }
 
-#define FC_REG_DUMP_EVENT		0x10	/* Register for Dump events */
-#define FC_REG_TEMPERATURE_EVENT	0x20    /* Register for temperature
-						   event */
+static inline void
+lpfc_sli_read_hs(struct lpfc_hba *phba)
+{
+	/*
+	 * There was a link/board error. Read the status register to retrieve
+	 * the error event and process it.
+	 */
+	phba->sli.slistat.err_attn_event++;
+
+	/* Save status info */
+	phba->work_hs = readl(phba->HSregaddr);
+	phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
+	phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
+
+	/* Clear chip Host Attention error bit */
+	writel(HA_ERATT, phba->HAregaddr);
+	readl(phba->HAregaddr); /* flush */
+	phba->pport->stopped = 1;
+
+	return;
+}
 
-struct temp_event {
-	uint32_t event_type;
-	uint32_t event_code;
-	uint32_t data;
-};
-#define LPFC_CRIT_TEMP		0x1
-#define LPFC_THRESHOLD_TEMP	0x2
-#define LPFC_NORMAL_TEMP	0x3