/*******************************************************************
* 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. *
+ * Fibre Channel Host Bus Adapters. *
+ * Copyright (C) 2004-2006 Emulex. All rights reserved. *
+ * EMULEX and SLI are trademarks of Emulex. *
* 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. *
+ * modify it under the terms of version 2 of the GNU General *
+ * Public License as published by the Free Software Foundation. *
+ * This program is distributed in the hope that it will be useful. *
+ * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
+ * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
+ * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
+ * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
+ * TO BE LEGALLY INVALID. 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 1.36 2004/11/23 16:56:58EST sf_support Exp $
- */
-
-#ifndef _H_LPFC_SLI
-#define _H_LPFC_SLI
-
-#include "lpfc_hw.h"
-
/* 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;
+ uint16_t iotag; /* pre-assigned IO tag */
+ uint16_t rsvd1;
+
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 */
+#define LPFC_IO_LIBDFC 1 /* libdfc iocb */
+#define LPFC_IO_WAKE 2 /* High Priority Queue signal flag */
+#define LPFC_IO_FCP 4 /* FCP command -- iocbq in scsi_buf */
uint8_t abort_count;
uint8_t rsvd2;
void *context2; /* caller context information */
void *context3; /* caller context information */
union {
- wait_queue_head_t *hipri_wait_queue; /* High Priority Queue wait
- queue */
+ wait_queue_head_t *wait_queue;
struct lpfc_iocbq *rsp_iocb;
struct lpfcMboxq *mbox;
} context_un;
};
#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
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 */
uint32_t local_getidx; /* last available cmd index (from cmdGetInx) */
uint32_t next_cmdidx; /* next_cmd index */
+ uint32_t rspidx; /* current index in response ring */
+ uint32_t cmdidx; /* current index in command ring */
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;
struct list_head txcmplq;
uint16_t txcmplq_cnt; /* current length of queue */
uint16_t txcmplq_max; /* max length */
- volatile uint32_t *cmdringaddr; /* virtual address for cmd rings */
- volatile uint32_t *rspringaddr; /* virtual address for rsp rings */
+ 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 */
struct list_head iocb_continueq;
uint16_t iocb_continueq_cnt; /* current length of queue */
uint16_t iocb_continueq_max; /* max length */
-};
-
-typedef struct {
- 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 *);
-} LPFC_RING_MASK_t;
-/* Structure used for configuring rings to a specific profile or rctl / type */
-typedef struct {
- LPFC_RING_MASK_t prt[LPFC_MAX_RING_MASK];
+ struct lpfc_sli_ring_mask prt[LPFC_MAX_RING_MASK];
uint32_t num_mask; /* number of mask entries in prt array */
- uint32_t iotag_ctr; /* keeps track of the next iotag to use */
- uint32_t iotag_max; /* max iotag value to use */
- uint32_t fast_iotag; /* max fastlookup based iotag */
- uint16_t numCiocb; /* number of command iocb's per ring */
- uint16_t numRiocb; /* number of rsp iocb's per ring */
+
+ struct lpfc_sli_ring_stat stats; /* SLI statistical info */
+
/* cmd ring available */
void (*lpfc_sli_cmd_available) (struct lpfc_hba *,
struct lpfc_sli_ring *);
-} LPFC_RING_INIT_t;
-
-typedef struct {
- LPFC_RING_INIT_t ringinit[LPFC_MAX_RING]; /* ring initialization info */
- uint32_t num_rings;
- uint32_t sli_flag;
-} LPFC_SLI_INIT_t;
+};
/* Structure used to hold SLI statistical counters and info */
-typedef struct {
- uint64_t iocbEvent[LPFC_MAX_RING]; /* IOCB event counters */
- uint64_t iocbCmd[LPFC_MAX_RING]; /* IOCB cmd issued */
- uint64_t iocbRsp[LPFC_MAX_RING]; /* IOCB rsp received */
- uint64_t iocbCmdDelay[LPFC_MAX_RING]; /* IOCB cmd ring delay */
- uint64_t iocbCmdFull[LPFC_MAX_RING]; /* IOCB cmd ring full */
- uint64_t iocbCmdEmpty[LPFC_MAX_RING]; /* IOCB cmd ring is now empty */
- uint64_t iocbRspFull[LPFC_MAX_RING]; /* IOCB rsp ring full */
- uint64_t mboxStatErr; /* Mbox cmds completed status error */
- uint64_t mboxCmd; /* Mailbox commands issued */
- uint64_t sliIntr; /* Count of Host Attention interrupts */
- uint32_t errAttnEvent; /* Error Attn event counters */
- uint32_t linkEvent; /* Link event counters */
- uint32_t mboxEvent; /* Mailbox event counters */
- uint32_t mboxBusy; /* Mailbox cmd busy */
-} LPFC_SLI_STAT_t;
+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 {
- LPFC_SLI_INIT_t sliinit; /* initialization info */
+ 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 */
int ip_ring; /* ring used for IP network drv cmds */
- LPFC_SLI_STAT_t slistat; /* SLI statistical info */
+ 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 */
struct timer_list mbox_tmo; /* Hold clk to timeout active mbox
cmd */
- volatile uint32_t *MBhostaddr; /* virtual address for mbox cmds */
+#define LPFC_IOCBQ_LOOKUP_INCREMENT 1024
+ struct lpfc_iocbq ** iocbq_lookup; /* array to lookup IOCB by IOTAG */
+ size_t iocbq_lookup_len; /* current lengs of the array */
+ uint16_t last_iotag; /* last allocated IOTAG */
};
/* Given a pointer to the start of the ring, and the slot number of
*/
#define IOCB_ENTRY(ring,slot) ((IOCB_t *)(((char *)(ring)) + ((slot) * 32)))
-#define LPFC_SLI_ABORT_IMED 0 /* Immediate abort of IOCB, deque and
- call compl routine immediately. */
#define LPFC_MBOX_TMO 30 /* Sec tmo for outstanding mbox
command */
-
-/* Flags for aborting I/Os on tx and txcmpl queues */
-#define LPFC_ABORT_TXQ 1 /* Abort I/Os on txq */
-#define LPFC_ABORT_TXCMPLQ 2 /* Abort I/Os on txcmplq */
-#define LPFC_ABORT_ALLQ 3 /* Abort I/Os both txq and txcmplq */
-
-#endif /* _H_LPFC_SLI */
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