lpfc: add Emulex FC driver version 8.0.28
From: James.Smart@Emulex.Com
Modified for kernel import and
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/lpfc/lpfc_sli.h b/drivers/scsi/lpfc/lpfc_sli.h
new file mode 100644
index 0000000..abd9a8c
--- /dev/null
+++ b/drivers/scsi/lpfc/lpfc_sli.h
@@ -0,0 +1,216 @@
+/*******************************************************************
+ * This file is part of the Emulex Linux Device Driver for *
+ * Enterprise Fibre Channel Host Bus Adapters. *
+ * Refer to the README file included with this package for *
+ * driver version and adapter support. *
+ * Copyright (C) 2004 Emulex Corporation. *
+ * www.emulex.com *
+ * *
+ * This program is free software; you can redistribute it and/or *
+ * modify it under the terms of the GNU General Public License *
+ * as published by the Free Software Foundation; either version 2 *
+ * of the License, or (at your option) any later version. *
+ * *
+ * This program is distributed in the hope that it will be useful, *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
+ * GNU General Public License for more details, a copy of which *
+ * can be found in the file COPYING included with this package. *
+ *******************************************************************/
+
+/*
+ * $Id: lpfc_sli.h 1.42 2005/03/21 02:01:28EST sf_support Exp $
+ */
+
+/* forward declaration for LPFC_IOCB_t's use */
+struct lpfc_hba;
+
+/* Define the context types that SLI handles for abort and sums. */
+typedef enum _lpfc_ctx_cmd {
+ LPFC_CTX_LUN,
+ LPFC_CTX_TGT,
+ LPFC_CTX_CTX,
+ LPFC_CTX_HOST
+} lpfc_ctx_cmd;
+
+/* This structure is used to handle IOCB requests / responses */
+struct lpfc_iocbq {
+ /* lpfc_iocbqs are used in double linked lists */
+ struct list_head list;
+ IOCB_t iocb; /* IOCB cmd */
+ uint8_t retry; /* retry counter for IOCB cmd - if needed */
+ uint8_t iocb_flag;
+#define LPFC_IO_POLL 1 /* Polling mode iocb */
+#define LPFC_IO_LIBDFC 2 /* libdfc iocb */
+#define LPFC_IO_WAIT 4
+#define LPFC_IO_HIPRI 8 /* High Priority Queue signal flag */
+
+ uint8_t abort_count;
+ uint8_t rsvd2;
+ uint32_t drvrTimeout; /* driver timeout in seconds */
+ void *context1; /* caller context information */
+ void *context2; /* caller context information */
+ void *context3; /* caller context information */
+ union {
+ wait_queue_head_t *hipri_wait_queue; /* High Priority Queue wait
+ queue */
+ struct lpfc_iocbq *rsp_iocb;
+ struct lpfcMboxq *mbox;
+ } context_un;
+
+ void (*iocb_cmpl) (struct lpfc_hba *, struct lpfc_iocbq *,
+ struct lpfc_iocbq *);
+
+};
+
+#define SLI_IOCB_RET_IOCB 1 /* Return IOCB if cmd ring full */
+#define SLI_IOCB_HIGH_PRIORITY 2 /* High priority command */
+
+#define IOCB_SUCCESS 0
+#define IOCB_BUSY 1
+#define IOCB_ERROR 2
+#define IOCB_TIMEDOUT 3
+
+typedef struct lpfcMboxq {
+ /* MBOXQs are used in single linked lists */
+ struct list_head list; /* ptr to next mailbox command */
+ MAILBOX_t mb; /* Mailbox cmd */
+ void *context1; /* caller context information */
+ void *context2; /* caller context information */
+
+ void (*mbox_cmpl) (struct lpfc_hba *, struct lpfcMboxq *);
+
+} LPFC_MBOXQ_t;
+
+#define MBX_POLL 1 /* poll mailbox till command done, then
+ return */
+#define MBX_NOWAIT 2 /* issue command then return immediately */
+#define MBX_STOP_IOCB 4 /* Stop iocb processing till mbox cmds
+ complete */
+
+#define LPFC_MAX_RING_MASK 4 /* max num of rctl/type masks allowed per
+ ring */
+#define LPFC_MAX_RING 4 /* max num of SLI rings used by driver */
+
+struct lpfc_sli_ring;
+
+struct lpfc_sli_ring_mask {
+ uint8_t profile; /* profile associated with ring */
+ uint8_t rctl; /* rctl / type pair configured for ring */
+ uint8_t type; /* rctl / type pair configured for ring */
+ uint8_t rsvd;
+ /* rcv'd unsol event */
+ void (*lpfc_sli_rcv_unsol_event) (struct lpfc_hba *,
+ struct lpfc_sli_ring *,
+ struct lpfc_iocbq *);
+};
+
+
+/* Structure used to hold SLI statistical counters and info */
+struct lpfc_sli_ring_stat {
+ uint64_t iocb_event; /* IOCB event counters */
+ uint64_t iocb_cmd; /* IOCB cmd issued */
+ uint64_t iocb_rsp; /* IOCB rsp received */
+ uint64_t iocb_cmd_delay; /* IOCB cmd ring delay */
+ uint64_t iocb_cmd_full; /* IOCB cmd ring full */
+ uint64_t iocb_cmd_empty; /* IOCB cmd ring is now empty */
+ uint64_t iocb_rsp_full; /* IOCB rsp ring full */
+};
+
+/* Structure used to hold SLI ring information */
+struct lpfc_sli_ring {
+ uint16_t flag; /* ring flags */
+#define LPFC_DEFERRED_RING_EVENT 0x001 /* Deferred processing a ring event */
+#define LPFC_CALL_RING_AVAILABLE 0x002 /* indicates cmd was full */
+#define LPFC_STOP_IOCB_MBX 0x010 /* Stop processing IOCB cmds mbox */
+#define LPFC_STOP_IOCB_EVENT 0x020 /* Stop processing IOCB cmds event */
+#define LPFC_STOP_IOCB_MASK 0x030 /* Stop processing IOCB cmds mask */
+ uint16_t abtsiotag; /* tracks next iotag to use for ABTS */
+
+ uint32_t local_getidx; /* last available cmd index (from cmdGetInx) */
+ uint32_t next_cmdidx; /* next_cmd index */
+ uint8_t rsvd;
+ uint8_t ringno; /* ring number */
+ uint8_t rspidx; /* current index in response ring */
+ uint8_t cmdidx; /* current index in command ring */
+ uint16_t numCiocb; /* number of command iocb's per ring */
+ uint16_t numRiocb; /* number of rsp iocb's per ring */
+
+ uint32_t fast_iotag; /* max fastlookup based iotag */
+ uint32_t iotag_ctr; /* keeps track of the next iotag to use */
+ uint32_t iotag_max; /* max iotag value to use */
+ struct lpfc_iocbq ** fast_lookup; /* array of IOCB ptrs indexed by
+ iotag */
+ struct list_head txq;
+ uint16_t txq_cnt; /* current length of queue */
+ uint16_t txq_max; /* max length */
+ struct list_head txcmplq;
+ uint16_t txcmplq_cnt; /* current length of queue */
+ uint16_t txcmplq_max; /* max length */
+ uint32_t *cmdringaddr; /* virtual address for cmd rings */
+ uint32_t *rspringaddr; /* virtual address for rsp rings */
+ uint32_t missbufcnt; /* keep track of buffers to post */
+ struct list_head postbufq;
+ uint16_t postbufq_cnt; /* current length of queue */
+ uint16_t postbufq_max; /* max length */
+ struct list_head iocb_continueq;
+ uint16_t iocb_continueq_cnt; /* current length of queue */
+ uint16_t iocb_continueq_max; /* max length */
+
+ struct lpfc_sli_ring_mask prt[LPFC_MAX_RING_MASK];
+ uint32_t num_mask; /* number of mask entries in prt array */
+
+ struct lpfc_sli_ring_stat stats; /* SLI statistical info */
+
+ /* cmd ring available */
+ void (*lpfc_sli_cmd_available) (struct lpfc_hba *,
+ struct lpfc_sli_ring *);
+};
+
+/* Structure used to hold SLI statistical counters and info */
+struct lpfc_sli_stat {
+ uint64_t mbox_stat_err; /* Mbox cmds completed status error */
+ uint64_t mbox_cmd; /* Mailbox commands issued */
+ uint64_t sli_intr; /* Count of Host Attention interrupts */
+ uint32_t err_attn_event; /* Error Attn event counters */
+ uint32_t link_event; /* Link event counters */
+ uint32_t mbox_event; /* Mailbox event counters */
+ uint32_t mbox_busy; /* Mailbox cmd busy */
+};
+
+/* Structure used to hold SLI information */
+struct lpfc_sli {
+ uint32_t num_rings;
+ uint32_t sli_flag;
+
+ /* Additional sli_flags */
+#define LPFC_SLI_MBOX_ACTIVE 0x100 /* HBA mailbox is currently active */
+#define LPFC_SLI2_ACTIVE 0x200 /* SLI2 overlay in firmware is active */
+#define LPFC_PROCESS_LA 0x400 /* Able to process link attention */
+
+ struct lpfc_sli_ring ring[LPFC_MAX_RING];
+ int fcp_ring; /* ring used for FCP initiator commands */
+ int next_ring;
+
+ int ip_ring; /* ring used for IP network drv cmds */
+
+ struct lpfc_sli_stat slistat; /* SLI statistical info */
+ struct list_head mboxq;
+ uint16_t mboxq_cnt; /* current length of queue */
+ uint16_t mboxq_max; /* max length */
+ LPFC_MBOXQ_t *mbox_active; /* active mboxq information */
+
+ struct timer_list mbox_tmo; /* Hold clk to timeout active mbox
+ cmd */
+
+ uint32_t *MBhostaddr; /* virtual address for mbox cmds */
+};
+
+/* Given a pointer to the start of the ring, and the slot number of
+ * the desired iocb entry, calc a pointer to that entry.
+ * (assume iocb entry size is 32 bytes, or 8 words)
+ */
+#define IOCB_ENTRY(ring,slot) ((IOCB_t *)(((char *)(ring)) + ((slot) * 32)))
+
+#define LPFC_MBOX_TMO 30 /* Sec tmo for outstanding mbox
+ command */