[SCSI] lpfc: NPIV: add NPIV support on top of SLI-3
NPIV support is added to the driver. It utilizes the interfaces of
the fc transport for the creation and deletion of vports. Within the
driver, a new Scsi_Host is created for each NPIV instance, and is
paired with a new instance of a FC port. This allows N FC Port
elements to share a single Adapter.
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index 74f4d18..4b9019d 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -34,6 +34,17 @@
#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 */
+/*
+ * Following time intervals are used of adjusting SCSI device
+ * queue depths when there are driver resource error or Firmware
+ * resource error.
+ */
+#define QUEUE_RAMP_DOWN_INTERVAL (1 * HZ) /* 1 Second */
+#define QUEUE_RAMP_UP_INTERVAL (300 * HZ) /* 5 minutes */
+
+/* Number of exchanges reserved for discovery to complete */
+#define LPFC_DISC_IOCB_BUFF_COUNT 20
+
/* Define macros for 64 bit support */
#define putPaddrLow(addr) ((uint32_t) (0xffffffff & (u64)(addr)))
#define putPaddrHigh(addr) ((uint32_t) (0xffffffff & (((u64)(addr))>>32)))
@@ -97,6 +108,29 @@
uint32_t sli2FwRev;
uint8_t sli2FwName[16];
} rev;
+ struct {
+#ifdef __BIG_ENDIAN_BITFIELD
+ uint32_t rsvd2 :24; /* Reserved */
+ uint32_t cmv : 1; /* Configure Max VPIs */
+ uint32_t ccrp : 1; /* Config Command Ring Polling */
+ uint32_t csah : 1; /* Configure Synchronous Abort Handling */
+ uint32_t chbs : 1; /* Cofigure Host Backing store */
+ uint32_t cinb : 1; /* Enable Interrupt Notification Block */
+ uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */
+ uint32_t cmx : 1; /* Configure Max XRIs */
+ uint32_t cmr : 1; /* Configure Max RPIs */
+#else /* __LITTLE_ENDIAN */
+ uint32_t cmr : 1; /* Configure Max RPIs */
+ uint32_t cmx : 1; /* Configure Max XRIs */
+ uint32_t cerbm : 1; /* Configure Enhanced Receive Buf Mgmt */
+ uint32_t cinb : 1; /* Enable Interrupt Notification Block */
+ uint32_t chbs : 1; /* Cofigure Host Backing store */
+ uint32_t csah : 1; /* Configure Synchronous Abort Handling */
+ uint32_t ccrp : 1; /* Config Command Ring Polling */
+ uint32_t cmv : 1; /* Configure Max VPIs */
+ uint32_t rsvd2 :24; /* Reserved */
+#endif
+ } sli3Feat;
} lpfc_vpd_t;
struct lpfc_scsi_buf;
@@ -129,6 +163,7 @@
uint32_t elsRcvRPS;
uint32_t elsRcvRPL;
uint32_t elsXmitFLOGI;
+ uint32_t elsXmitFDISC;
uint32_t elsXmitPLOGI;
uint32_t elsXmitPRLI;
uint32_t elsXmitADISC;
@@ -174,18 +209,21 @@
struct lpfc_hba;
+
enum discovery_state {
- LPFC_STATE_UNKNOWN = 0, /* HBA state is unknown */
- LPFC_LOCAL_CFG_LINK = 6, /* local NPORT Id configured */
- LPFC_FLOGI = 7, /* FLOGI sent to Fabric */
- LPFC_FABRIC_CFG_LINK = 8, /* Fabric assigned NPORT Id
- * configured */
- LPFC_NS_REG = 9, /* Register with NameServer */
- LPFC_NS_QRY = 10, /* Query NameServer for NPort ID list */
- LPFC_BUILD_DISC_LIST = 11, /* Build ADISC and PLOGI lists for
- * device authentication / discovery */
- LPFC_DISC_AUTH = 12, /* Processing ADISC list */
- LPFC_VPORT_READY = 32,
+ LPFC_VPORT_UNKNOWN = 0, /* vport state is unknown */
+ LPFC_VPORT_FAILED = 1, /* vport has failed */
+ LPFC_LOCAL_CFG_LINK = 6, /* local NPORT Id configured */
+ LPFC_FLOGI = 7, /* FLOGI sent to Fabric */
+ LPFC_FDISC = 8, /* FDISC sent for vport */
+ LPFC_FABRIC_CFG_LINK = 9, /* Fabric assigned NPORT Id
+ * configured */
+ LPFC_NS_REG = 10, /* Register with NameServer */
+ LPFC_NS_QRY = 11, /* Query NameServer for NPort ID list */
+ LPFC_BUILD_DISC_LIST = 12, /* Build ADISC and PLOGI lists for
+ * device authentication / discovery */
+ LPFC_DISC_AUTH = 13, /* Processing ADISC list */
+ LPFC_VPORT_READY = 32,
};
enum hba_state {
@@ -195,8 +233,9 @@
LPFC_INIT_MBX_CMDS = 3, /* Initialize HBA with mbox commands */
LPFC_LINK_DOWN = 4, /* HBA initialized, link is down */
LPFC_LINK_UP = 5, /* Link is up - issue READ_LA */
- LPFC_CLEAR_LA = 13, /* authentication cmplt - issue
+ LPFC_CLEAR_LA = 6, /* authentication cmplt - issue
* CLEAR_LA */
+ LPFC_HBA_READY = 32,
LPFC_HBA_ERROR = -1
};
@@ -209,26 +248,30 @@
#define LPFC_FABRIC_PORT 3
enum discovery_state port_state;
+ uint16_t vpi;
uint32_t fc_flag; /* FC flags */
/* Several of these flags are HBA centric and should be moved to
* phba->link_flag (e.g. FC_PTP, FC_PUBLIC_LOOP)
*/
-#define FC_PT2PT 0x1 /* pt2pt with no fabric */
-#define FC_PT2PT_PLOGI 0x2 /* pt2pt initiate PLOGI */
-#define FC_DISC_TMO 0x4 /* Discovery timer running */
-#define FC_PUBLIC_LOOP 0x8 /* Public loop */
-#define FC_LBIT 0x10 /* LOGIN bit in loopinit set */
-#define FC_RSCN_MODE 0x20 /* RSCN cmd rcv'ed */
-#define FC_NLP_MORE 0x40 /* More node to process in node tbl */
-#define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */
-#define FC_FABRIC 0x100 /* We are fabric attached */
-#define FC_ESTABLISH_LINK 0x200 /* Reestablish Link */
-#define FC_RSCN_DISCOVERY 0x400 /* Authenticate all devices after RSCN*/
-#define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */
-#define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */
-#define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */
-#define FC_BYPASSED_MODE 0x20000 /* NPort is in bypassed mode */
+#define FC_PT2PT 0x1 /* pt2pt with no fabric */
+#define FC_PT2PT_PLOGI 0x2 /* pt2pt initiate PLOGI */
+#define FC_DISC_TMO 0x4 /* Discovery timer running */
+#define FC_PUBLIC_LOOP 0x8 /* Public loop */
+#define FC_LBIT 0x10 /* LOGIN bit in loopinit set */
+#define FC_RSCN_MODE 0x20 /* RSCN cmd rcv'ed */
+#define FC_NLP_MORE 0x40 /* More node to process in node tbl */
+#define FC_OFFLINE_MODE 0x80 /* Interface is offline for diag */
+#define FC_FABRIC 0x100 /* We are fabric attached */
+#define FC_ESTABLISH_LINK 0x200 /* Reestablish Link */
+#define FC_RSCN_DISCOVERY 0x400 /* Auth all devices after RSCN */
+#define FC_SCSI_SCAN_TMO 0x4000 /* scsi scan timer running */
+#define FC_ABORT_DISCOVERY 0x8000 /* we want to abort discovery */
+#define FC_NDISC_ACTIVE 0x10000 /* NPort discovery active */
+#define FC_BYPASSED_MODE 0x20000 /* NPort is in bypassed mode */
+#define FC_RFF_NOT_SUPPORTED 0x40000 /* RFF_ID was rejected by switch */
+#define FC_VPORT_NEEDS_REG_VPI 0x80000 /* Needs to have its vpi registered */
+#define FC_RSCN_DEFERRED 0x100000 /* A deferred RSCN being processed */
struct list_head fc_nodes;
@@ -269,6 +312,9 @@
#define WORKER_ELS_TMO 0x2 /* ELS timeout */
#define WORKER_MBOX_TMO 0x4 /* MBOX timeout */
#define WORKER_FDMI_TMO 0x8 /* FDMI timeout */
+#define WORKER_FABRIC_BLOCK_TMO 0x10 /* fabric block timout */
+#define WORKER_RAMP_DOWN_QUEUE 0x20 /* Decrease Q depth */
+#define WORKER_RAMP_UP_QUEUE 0x40 /* Increase Q depth */
struct timer_list fc_fdmitmo;
struct timer_list els_tmofunc;
@@ -278,10 +324,10 @@
uint8_t load_flag;
#define FC_LOADING 0x1 /* HBA in process of loading drvr */
#define FC_UNLOADING 0x2 /* HBA in process of unloading drvr */
-
+ char *vname; /* Application assigned name */
+ struct fc_vport *fc_vport;
};
-
struct hbq_s {
uint16_t entry_count; /* Current number of HBQ slots */
uint32_t next_hbqPutIdx; /* Index to next HBQ slot to use */
@@ -289,33 +335,38 @@
uint32_t local_hbqGetIdx; /* Local copy of Get index from Port */
};
-#define MAX_HBQS 16
+#define LPFC_MAX_HBQS 16
+/* this matches the possition in the lpfc_hbq_defs array */
+#define LPFC_ELS_HBQ 0
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_INB_ENABLED 0x04
+#define LPFC_SLI3_ENABLED 0x01
+#define LPFC_SLI3_HBQ_ENABLED 0x02
+#define LPFC_SLI3_NPIV_ENABLED 0x04
+#define LPFC_SLI3_VPORT_TEARDOWN 0x08
uint32_t iocb_cmd_size;
uint32_t iocb_rsp_size;
enum hba_state link_state;
uint32_t link_flag; /* link state flags */
-#define LS_LOOPBACK_MODE 0x40000 /* NPort is in Loopback mode */
+#define LS_LOOPBACK_MODE 0x1 /* NPort is in Loopback mode */
/* This flag is set while issuing */
/* INIT_LINK mailbox command */
-#define LS_IGNORE_ERATT 0x80000 /* intr handler should ignore ERATT */
+#define LS_NPIV_FAB_SUPPORTED 0x2 /* Fabric supports NPIV */
+#define LS_IGNORE_ERATT 0x3 /* intr handler should ignore ERATT */
struct lpfc_sli2_slim *slim2p;
struct lpfc_dmabuf hbqslimp;
dma_addr_t slim2p_mapping;
-
uint16_t pci_cfg_value;
+ uint8_t work_found;
+#define LPFC_MAX_WORKER_ITERATION 4
uint8_t fc_linkspeed; /* Link speed after last READ_LA */
@@ -325,7 +376,7 @@
struct timer_list fc_estabtmo; /* link establishment timer */
/* These fields used to be binfo */
uint32_t fc_pref_DID; /* preferred D_ID */
- uint8_t fc_pref_ALPA; /* preferred AL_PA */
+ uint8_t fc_pref_ALPA; /* preferred AL_PA */
uint32_t fc_edtov; /* E_D_TOV timer value */
uint32_t fc_arbtov; /* ARB_TOV timer value */
uint32_t fc_ratov; /* R_A_TOV timer value */
@@ -355,6 +406,8 @@
uint32_t cfg_nodev_tmo;
uint32_t cfg_devloss_tmo;
uint32_t cfg_hba_queue_depth;
+ uint32_t cfg_peer_port_login;
+ uint32_t cfg_vport_restrict_login;
uint32_t cfg_fcp_class;
uint32_t cfg_use_adisc;
uint32_t cfg_ack0;
@@ -391,11 +444,9 @@
wait_queue_head_t *work_wait;
struct task_struct *worker_thread;
- struct hbq_dmabuf *hbq_buffer_pool;
- uint32_t hbq_buffer_count;
- uint32_t hbq_buff_count; /* Current hbq buffers */
+ struct list_head hbq_buffer_list;
uint32_t hbq_count; /* Count of configured HBQs */
- struct hbq_s hbqs[MAX_HBQS]; /* local copy of hbq indicies */
+ struct hbq_s hbqs[LPFC_MAX_HBQS]; /* local copy of hbq indicies */
unsigned long pci_bar0_map; /* Physical address for PCI BAR0 */
unsigned long pci_bar2_map; /* Physical address for PCI BAR2 */
@@ -413,7 +464,7 @@
struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */
uint32_t __iomem *hbq_put; /* Address in SLIM to HBQ put ptrs */
- uint32_t __iomem *hbq_get; /* Address in SLIM to HBQ get ptrs */
+ uint32_t *hbq_get; /* Host mem address of HBQ get ptrs */
int brd_no; /* FC board number */
@@ -464,6 +515,22 @@
struct fc_host_statistics link_stats;
struct list_head port_list;
struct lpfc_vport *pport; /* physical lpfc_vport pointer */
+ uint16_t max_vpi; /* Maximum virtual nports */
+ uint16_t vpi_cnt; /* Nport count */
+#define LPFC_MAX_VPI 100 /* Max number of VPorts supported */
+ unsigned long *vpi_bmask; /* vpi allocation table */
+
+ /* Data structure used by fabric iocb scheduler */
+ struct list_head fabric_iocb_list;
+ atomic_t fabric_iocb_count;
+ struct timer_list fabric_block_timer;
+ unsigned long bit_flags;
+#define FABRIC_COMANDS_BLOCKED 0
+ atomic_t num_rsrc_err;
+ atomic_t num_cmd_success;
+ unsigned long last_rsrc_error_time;
+ unsigned long last_ramp_down_time;
+ unsigned long last_ramp_up_time;
};
static inline struct Scsi_Host *
@@ -485,10 +552,9 @@
lpfc_is_link_up(struct lpfc_hba *phba)
{
return phba->link_state == LPFC_LINK_UP ||
- phba->link_state == LPFC_CLEAR_LA;
+ phba->link_state == LPFC_CLEAR_LA ||
+ phba->link_state == LPFC_HBA_READY;
}
-
-
#define FC_REG_DUMP_EVENT 0x10 /* Register for Dump events */