sym_hipd.h
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:39k
- /*
- * Device driver for the SYMBIOS/LSILOGIC 53C8XX and 53C1010 family
- * of PCI-SCSI IO processors.
- *
- * Copyright (C) 1999-2001 Gerard Roudier <groudier@free.fr>
- *
- * This driver is derived from the Linux sym53c8xx driver.
- * Copyright (C) 1998-2000 Gerard Roudier
- *
- * The sym53c8xx driver is derived from the ncr53c8xx driver that had been
- * a port of the FreeBSD ncr driver to Linux-1.2.13.
- *
- * The original ncr driver has been written for 386bsd and FreeBSD by
- * Wolfgang Stanglmeier <wolf@cologne.de>
- * Stefan Esser <se@mi.Uni-Koeln.de>
- * Copyright (C) 1994 Wolfgang Stanglmeier
- *
- * Other major contributions:
- *
- * NVRAM detection and reading.
- * Copyright (C) 1997 Richard Waltham <dormouse@farsrobt.demon.co.uk>
- *
- *-----------------------------------------------------------------------------
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * Where this Software is combined with software released under the terms of
- * the GNU Public License ("GPL") and the terms of the GPL would require the
- * combined work to also be released under the terms of the GPL, the terms
- * and conditions of this License will apply in addition to those of the
- * GPL with the exception of any terms or conditions of this License that
- * conflict with, or are expressly prohibited by, the GPL.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
- * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
- #ifndef SYM_HIPD_H
- #define SYM_HIPD_H
- /*
- * Generic driver options.
- *
- * They may be defined in platform specific headers, if they
- * are useful.
- *
- * SYM_OPT_NO_BUS_MEMORY_MAPPING
- * When this option is set, the driver will not load the
- * on-chip RAM using MMIO, but let the SCRIPTS processor
- * do the work using MOVE MEMORY instructions.
- * (set for Linux/PPC)
- *
- * SYM_OPT_HANDLE_DIR_UNKNOWN
- * When this option is set, the SCRIPTS used by the driver
- * are able to handle SCSI transfers with direction not
- * supplied by user.
- * (set for Linux-2.0.X)
- *
- * SYM_OPT_HANDLE_DEVICE_QUEUEING
- * When this option is set, the driver will use a queue per
- * device and handle QUEUE FULL status requeuing internally.
- *
- * SYM_OPT_BUS_DMA_ABSTRACTION
- * When this option is set, the driver allocator is responsible
- * of maintaining bus physical addresses and so provides virtual
- * to bus physical address translation of driver data structures.
- * (set for FreeBSD-4 and Linux 2.3)
- *
- * SYM_OPT_SNIFF_INQUIRY
- * When this option is set, the driver sniff out successful
- * INQUIRY response and performs negotiations accordingly.
- * (set for Linux)
- *
- * SYM_OPT_LIMIT_COMMAND_REORDERING
- * When this option is set, the driver tries to limit tagged
- * command reordering to some reasonnable value.
- * (set for Linux)
- */
- #if 0
- #define SYM_OPT_NO_BUS_MEMORY_MAPPING
- #define SYM_OPT_HANDLE_DIR_UNKNOWN
- #define SYM_OPT_HANDLE_DEVICE_QUEUEING
- #define SYM_OPT_BUS_DMA_ABSTRACTION
- #define SYM_OPT_SNIFF_INQUIRY
- #define SYM_OPT_LIMIT_COMMAND_REORDERING
- #endif
- /*
- * Active debugging tags and verbosity.
- * Both DEBUG_FLAGS and sym_verbose can be redefined
- * by the platform specific code to something else.
- */
- #define DEBUG_ALLOC (0x0001)
- #define DEBUG_PHASE (0x0002)
- #define DEBUG_POLL (0x0004)
- #define DEBUG_QUEUE (0x0008)
- #define DEBUG_RESULT (0x0010)
- #define DEBUG_SCATTER (0x0020)
- #define DEBUG_SCRIPT (0x0040)
- #define DEBUG_TINY (0x0080)
- #define DEBUG_TIMING (0x0100)
- #define DEBUG_NEGO (0x0200)
- #define DEBUG_TAGS (0x0400)
- #define DEBUG_POINTER (0x0800)
- #ifndef DEBUG_FLAGS
- #define DEBUG_FLAGS (0x0000)
- #endif
- #ifndef sym_verbose
- #define sym_verbose (np->verbose)
- #endif
- /*
- * These ones should have been already defined.
- */
- #ifndef offsetof
- #define offsetof(t, m) ((size_t) (&((t *)0)->m))
- #endif
- #ifndef MIN
- #define MIN(a, b) (((a) < (b)) ? (a) : (b))
- #endif
- #ifndef assert
- #define assert(expression) {
- if (!(expression)) {
- (void)panic(
- "assertion "%s" failed: file "%s", line %dn",
- #expression,
- __FILE__, __LINE__);
- }
- }
- #endif
- /*
- * Number of tasks per device we want to handle.
- */
- #if SYM_CONF_MAX_TAG_ORDER > 8
- #error "more than 256 tags per logical unit not allowed."
- #endif
- #define SYM_CONF_MAX_TASK (1<<SYM_CONF_MAX_TAG_ORDER)
- /*
- * Donnot use more tasks that we can handle.
- */
- #ifndef SYM_CONF_MAX_TAG
- #define SYM_CONF_MAX_TAG SYM_CONF_MAX_TASK
- #endif
- #if SYM_CONF_MAX_TAG > SYM_CONF_MAX_TASK
- #undef SYM_CONF_MAX_TAG
- #define SYM_CONF_MAX_TAG SYM_CONF_MAX_TASK
- #endif
- /*
- * This one means 'NO TAG for this job'
- */
- #define NO_TAG (256)
- /*
- * Number of SCSI targets.
- */
- #if SYM_CONF_MAX_TARGET > 16
- #error "more than 16 targets not allowed."
- #endif
- /*
- * Number of logical units per target.
- */
- #if SYM_CONF_MAX_LUN > 64
- #error "more than 64 logical units per target not allowed."
- #endif
- /*
- * Asynchronous pre-scaler (ns). Shall be 40 for
- * the SCSI timings to be compliant.
- */
- #define SYM_CONF_MIN_ASYNC (40)
- /*
- * Number of entries in the START and DONE queues.
- *
- * We limit to 1 PAGE in order to succeed allocation of
- * these queues. Each entry is 8 bytes long (2 DWORDS).
- */
- #ifdef SYM_CONF_MAX_START
- #define SYM_CONF_MAX_QUEUE (SYM_CONF_MAX_START+2)
- #else
- #define SYM_CONF_MAX_QUEUE (7*SYM_CONF_MAX_TASK+2)
- #define SYM_CONF_MAX_START (SYM_CONF_MAX_QUEUE-2)
- #endif
- #if SYM_CONF_MAX_QUEUE > SYM_MEM_CLUSTER_SIZE/8
- #undef SYM_CONF_MAX_QUEUE
- #define SYM_CONF_MAX_QUEUE (SYM_MEM_CLUSTER_SIZE/8)
- #undef SYM_CONF_MAX_START
- #define SYM_CONF_MAX_START (SYM_CONF_MAX_QUEUE-2)
- #endif
- /*
- * For this one, we want a short name :-)
- */
- #define MAX_QUEUE SYM_CONF_MAX_QUEUE
- /*
- * Union of supported NVRAM formats.
- */
- struct sym_nvram {
- int type;
- #define SYM_SYMBIOS_NVRAM (1)
- #define SYM_TEKRAM_NVRAM (2)
- #if SYM_CONF_NVRAM_SUPPORT
- union {
- Symbios_nvram Symbios;
- Tekram_nvram Tekram;
- } data;
- #endif
- };
- /*
- * Common definitions for both bus space based and legacy IO methods.
- */
- #define INB(r) INB_OFF(offsetof(struct sym_reg,r))
- #define INW(r) INW_OFF(offsetof(struct sym_reg,r))
- #define INL(r) INL_OFF(offsetof(struct sym_reg,r))
- #define OUTB(r, v) OUTB_OFF(offsetof(struct sym_reg,r), (v))
- #define OUTW(r, v) OUTW_OFF(offsetof(struct sym_reg,r), (v))
- #define OUTL(r, v) OUTL_OFF(offsetof(struct sym_reg,r), (v))
- #define OUTONB(r, m) OUTB(r, INB(r) | (m))
- #define OUTOFFB(r, m) OUTB(r, INB(r) & ~(m))
- #define OUTONW(r, m) OUTW(r, INW(r) | (m))
- #define OUTOFFW(r, m) OUTW(r, INW(r) & ~(m))
- #define OUTONL(r, m) OUTL(r, INL(r) | (m))
- #define OUTOFFL(r, m) OUTL(r, INL(r) & ~(m))
- /*
- * We normally want the chip to have a consistent view
- * of driver internal data structures when we restart it.
- * Thus these macros.
- */
- #define OUTL_DSP(v)
- do {
- MEMORY_WRITE_BARRIER();
- OUTL (nc_dsp, (v));
- } while (0)
- #define OUTONB_STD()
- do {
- MEMORY_WRITE_BARRIER();
- OUTONB (nc_dcntl, (STD|NOCOM));
- } while (0)
- /*
- * Command control block states.
- */
- #define HS_IDLE (0)
- #define HS_BUSY (1)
- #define HS_NEGOTIATE (2) /* sync/wide data transfer*/
- #define HS_DISCONNECT (3) /* Disconnected by target */
- #define HS_WAIT (4) /* waiting for resource */
- #define HS_DONEMASK (0x80)
- #define HS_COMPLETE (4|HS_DONEMASK)
- #define HS_SEL_TIMEOUT (5|HS_DONEMASK) /* Selection timeout */
- #define HS_UNEXPECTED (6|HS_DONEMASK) /* Unexpected disconnect */
- #define HS_COMP_ERR (7|HS_DONEMASK) /* Completed with error */
- /*
- * Software Interrupt Codes
- */
- #define SIR_BAD_SCSI_STATUS (1)
- #define SIR_SEL_ATN_NO_MSG_OUT (2)
- #define SIR_MSG_RECEIVED (3)
- #define SIR_MSG_WEIRD (4)
- #define SIR_NEGO_FAILED (5)
- #define SIR_NEGO_PROTO (6)
- #define SIR_SCRIPT_STOPPED (7)
- #define SIR_REJECT_TO_SEND (8)
- #define SIR_SWIDE_OVERRUN (9)
- #define SIR_SODL_UNDERRUN (10)
- #define SIR_RESEL_NO_MSG_IN (11)
- #define SIR_RESEL_NO_IDENTIFY (12)
- #define SIR_RESEL_BAD_LUN (13)
- #define SIR_TARGET_SELECTED (14)
- #define SIR_RESEL_BAD_I_T_L (15)
- #define SIR_RESEL_BAD_I_T_L_Q (16)
- #define SIR_ABORT_SENT (17)
- #define SIR_RESEL_ABORTED (18)
- #define SIR_MSG_OUT_DONE (19)
- #define SIR_COMPLETE_ERROR (20)
- #define SIR_DATA_OVERRUN (21)
- #define SIR_BAD_PHASE (22)
- #if SYM_CONF_DMA_ADDRESSING_MODE == 2
- #define SIR_DMAP_DIRTY (23)
- #define SIR_MAX (23)
- #else
- #define SIR_MAX (22)
- #endif
- /*
- * Extended error bit codes.
- * xerr_status field of struct sym_ccb.
- */
- #define XE_EXTRA_DATA (1) /* unexpected data phase */
- #define XE_BAD_PHASE (1<<1) /* illegal phase (4/5) */
- #define XE_PARITY_ERR (1<<2) /* unrecovered SCSI parity error */
- #define XE_SODL_UNRUN (1<<3) /* ODD transfer in DATA OUT phase */
- #define XE_SWIDE_OVRUN (1<<4) /* ODD transfer in DATA IN phase */
- /*
- * Negotiation status.
- * nego_status field of struct sym_ccb.
- */
- #define NS_SYNC (1)
- #define NS_WIDE (2)
- #define NS_PPR (3)
- /*
- * A CCB hashed table is used to retrieve CCB address
- * from DSA value.
- */
- #define CCB_HASH_SHIFT 8
- #define CCB_HASH_SIZE (1UL << CCB_HASH_SHIFT)
- #define CCB_HASH_MASK (CCB_HASH_SIZE-1)
- #if 1
- #define CCB_HASH_CODE(dsa)
- (((dsa) >> (_LGRU16_(sizeof(struct sym_ccb)))) & CCB_HASH_MASK)
- #else
- #define CCB_HASH_CODE(dsa) (((dsa) >> 9) & CCB_HASH_MASK)
- #endif
- #if SYM_CONF_DMA_ADDRESSING_MODE == 2
- /*
- * We may want to use segment registers for 64 bit DMA.
- * 16 segments registers -> up to 64 GB addressable.
- */
- #define SYM_DMAP_SHIFT (4)
- #define SYM_DMAP_SIZE (1u<<SYM_DMAP_SHIFT)
- #define SYM_DMAP_MASK (SYM_DMAP_SIZE-1)
- #endif
- /*
- * Device flags.
- */
- #define SYM_DISC_ENABLED (1)
- #define SYM_TAGS_ENABLED (1<<1)
- #define SYM_SCAN_BOOT_DISABLED (1<<2)
- #define SYM_SCAN_LUNS_DISABLED (1<<3)
- /*
- * Host adapter miscellaneous flags.
- */
- #define SYM_AVOID_BUS_RESET (1)
- #define SYM_SCAN_TARGETS_HILO (1<<1)
- /*
- * Misc.
- */
- #define SYM_SNOOP_TIMEOUT (10000000)
- #define BUS_8_BIT 0
- #define BUS_16_BIT 1
- /*
- * Gather negotiable parameters value
- */
- struct sym_trans {
- u8 scsi_version;
- u8 spi_version;
- u8 period;
- u8 offset;
- u8 width;
- u8 options; /* PPR options */
- };
- struct sym_tinfo {
- struct sym_trans curr;
- struct sym_trans goal;
- struct sym_trans user;
- #ifdef SYM_OPT_ANNOUNCE_TRANSFER_RATE
- struct sym_trans prev;
- #endif
- };
- /*
- * Global TCB HEADER.
- *
- * Due to lack of indirect addressing on earlier NCR chips,
- * this substructure is copied from the TCB to a global
- * address after selection.
- * For SYMBIOS chips that support LOAD/STORE this copy is
- * not needed and thus not performed.
- */
- struct sym_tcbh {
- /*
- * Scripts bus addresses of LUN table accessed from scripts.
- * LUN #0 is a special case, since multi-lun devices are rare,
- * and we we want to speed-up the general case and not waste
- * resources.
- */
- u32 luntbl_sa; /* bus address of this table */
- u32 lun0_sa; /* bus address of LCB #0 */
- /*
- * Actual SYNC/WIDE IO registers value for this target.
- * 'sval', 'wval' and 'uval' are read from SCRIPTS and
- * so have alignment constraints.
- */
- /*0*/ u_char uval; /* -> SCNTL4 register */
- /*1*/ u_char sval; /* -> SXFER io register */
- /*2*/ u_char filler1;
- /*3*/ u_char wval; /* -> SCNTL3 io register */
- };
- /*
- * Target Control Block
- */
- struct sym_tcb {
- /*
- * TCB header.
- * Assumed at offset 0.
- */
- /*0*/ struct sym_tcbh head;
- /*
- * LUN table used by the SCRIPTS processor.
- * An array of bus addresses is used on reselection.
- */
- u32 *luntbl; /* LCBs bus address table */
- /*
- * LUN table used by the C code.
- */
- lcb_p lun0p; /* LCB of LUN #0 (usual case) */
- #if SYM_CONF_MAX_LUN > 1
- lcb_p *lunmp; /* Other LCBs [1..MAX_LUN] */
- #endif
- /*
- * Bitmap that tells about LUNs that succeeded at least
- * 1 IO and therefore assumed to be a real device.
- * Avoid useless allocation of the LCB structure.
- */
- u32 lun_map[(SYM_CONF_MAX_LUN+31)/32];
- /*
- * Bitmap that tells about LUNs that haven't yet an LCB
- * allocated (not discovered or LCB allocation failed).
- */
- u32 busy0_map[(SYM_CONF_MAX_LUN+31)/32];
- #ifdef SYM_HAVE_STCB
- /*
- * O/S specific data structure.
- */
- struct sym_stcb s;
- #endif
- /*
- * Transfer capabilities (SIP)
- */
- struct sym_tinfo tinfo;
- /*
- * Keep track of the CCB used for the negotiation in order
- * to ensure that only 1 negotiation is queued at a time.
- */
- ccb_p nego_cp; /* CCB used for the nego */
- /*
- * Set when we want to reset the device.
- */
- u_char to_reset;
- /*
- * Other user settable limits and options.
- * These limits are read from the NVRAM if present.
- */
- u_char usrflags;
- u_short usrtags;
- #ifdef SYM_OPT_SNIFF_INQUIRY
- /*
- * Some minimal information from INQUIRY response.
- */
- u32 cmdq_map[(SYM_CONF_MAX_LUN+31)/32];
- u_char inq_version;
- u_char inq_byte7;
- u_char inq_byte56;
- u_char inq_byte7_valid;
- #endif
- };
- /*
- * Global LCB HEADER.
- *
- * Due to lack of indirect addressing on earlier NCR chips,
- * this substructure is copied from the LCB to a global
- * address after selection.
- * For SYMBIOS chips that support LOAD/STORE this copy is
- * not needed and thus not performed.
- */
- struct sym_lcbh {
- /*
- * SCRIPTS address jumped by SCRIPTS on reselection.
- * For not probed logical units, this address points to
- * SCRIPTS that deal with bad LU handling (must be at
- * offset zero of the LCB for that reason).
- */
- /*0*/ u32 resel_sa;
- /*
- * Task (bus address of a CCB) read from SCRIPTS that points
- * to the unique ITL nexus allowed to be disconnected.
- */
- u32 itl_task_sa;
- /*
- * Task table bus address (read from SCRIPTS).
- */
- u32 itlq_tbl_sa;
- };
- /*
- * Logical Unit Control Block
- */
- struct sym_lcb {
- /*
- * TCB header.
- * Assumed at offset 0.
- */
- /*0*/ struct sym_lcbh head;
- /*
- * Task table read from SCRIPTS that contains pointers to
- * ITLQ nexuses. The bus address read from SCRIPTS is
- * inside the header.
- */
- u32 *itlq_tbl; /* Kernel virtual address */
- /*
- * Busy CCBs management.
- */
- u_short busy_itlq; /* Number of busy tagged CCBs */
- u_short busy_itl; /* Number of busy untagged CCBs */
- /*
- * Circular tag allocation buffer.
- */
- u_short ia_tag; /* Tag allocation index */
- u_short if_tag; /* Tag release index */
- u_char *cb_tags; /* Circular tags buffer */
- /*
- * O/S specific data structure.
- */
- #ifdef SYM_HAVE_SLCB
- struct sym_slcb s;
- #endif
- #ifdef SYM_OPT_HANDLE_DEVICE_QUEUEING
- /*
- * Optionnaly the driver can handle device queueing,
- * and requeues internally command to redo.
- */
- SYM_QUEHEAD
- waiting_ccbq;
- SYM_QUEHEAD
- started_ccbq;
- int num_sgood;
- u_short started_tags;
- u_short started_no_tag;
- u_short started_max;
- u_short started_limit;
- #endif
- #ifdef SYM_OPT_LIMIT_COMMAND_REORDERING
- /*
- * Optionnaly the driver can try to prevent SCSI
- * IOs from being too much reordering.
- */
- u_char tags_si; /* Current index to tags sum */
- u_short tags_sum[2]; /* Tags sum counters */
- u_short tags_since; /* # of tags since last switch */
- #endif
- /*
- * Set when we want to clear all tasks.
- */
- u_char to_clear;
- /*
- * Capabilities.
- */
- u_char user_flags;
- u_char curr_flags;
- };
- /*
- * Action from SCRIPTS on a task.
- * Is part of the CCB, but is also used separately to plug
- * error handling action to perform from SCRIPTS.
- */
- struct sym_actscr {
- u32 start; /* Jumped by SCRIPTS after selection */
- u32 restart; /* Jumped by SCRIPTS on relection */
- };
- /*
- * Phase mismatch context.
- *
- * It is part of the CCB and is used as parameters for the
- * DATA pointer. We need two contexts to handle correctly the
- * SAVED DATA POINTER.
- */
- struct sym_pmc {
- struct sym_tblmove sg; /* Updated interrupted SG block */
- u32 ret; /* SCRIPT return address */
- };
- /*
- * LUN control block lookup.
- * We use a direct pointer for LUN #0, and a table of
- * pointers which is only allocated for devices that support
- * LUN(s) > 0.
- */
- #if SYM_CONF_MAX_LUN <= 1
- #define sym_lp(np, tp, lun) (!lun) ? (tp)->lun0p : 0
- #else
- #define sym_lp(np, tp, lun)
- (!lun) ? (tp)->lun0p : (tp)->lunmp ? (tp)->lunmp[(lun)] : 0
- #endif
- /*
- * Status are used by the host and the script processor.
- *
- * The last four bytes (status[4]) are copied to the
- * scratchb register (declared as scr0..scr3) just after the
- * select/reselect, and copied back just after disconnecting.
- * Inside the script the XX_REG are used.
- */
- /*
- * Last four bytes (script)
- */
- #define HX_REG scr0
- #define HX_PRT nc_scr0
- #define HS_REG scr1
- #define HS_PRT nc_scr1
- #define SS_REG scr2
- #define SS_PRT nc_scr2
- #define HF_REG scr3
- #define HF_PRT nc_scr3
- /*
- * Last four bytes (host)
- */
- #define host_xflags phys.head.status[0]
- #define host_status phys.head.status[1]
- #define ssss_status phys.head.status[2]
- #define host_flags phys.head.status[3]
- /*
- * Host flags
- */
- #define HF_IN_PM0 1u
- #define HF_IN_PM1 (1u<<1)
- #define HF_ACT_PM (1u<<2)
- #define HF_DP_SAVED (1u<<3)
- #define HF_SENSE (1u<<4)
- #define HF_EXT_ERR (1u<<5)
- #define HF_DATA_IN (1u<<6)
- #ifdef SYM_CONF_IARB_SUPPORT
- #define HF_HINT_IARB (1u<<7)
- #endif
- /*
- * More host flags
- */
- #if SYM_CONF_DMA_ADDRESSING_MODE == 2
- #define HX_DMAP_DIRTY (1u<<7)
- #endif
- /*
- * Global CCB HEADER.
- *
- * Due to lack of indirect addressing on earlier NCR chips,
- * this substructure is copied from the ccb to a global
- * address after selection (or reselection) and copied back
- * before disconnect.
- * For SYMBIOS chips that support LOAD/STORE this copy is
- * not needed and thus not performed.
- */
- struct sym_ccbh {
- /*
- * Start and restart SCRIPTS addresses (must be at 0).
- */
- /*0*/ struct sym_actscr go;
- /*
- * SCRIPTS jump address that deal with data pointers.
- * 'savep' points to the position in the script responsible
- * for the actual transfer of data.
- * It's written on reception of a SAVE_DATA_POINTER message.
- */
- u32 savep; /* Jump address to saved data pointer */
- u32 lastp; /* SCRIPTS address at end of data */
- #ifdef SYM_OPT_HANDLE_DIR_UNKNOWN
- u32 wlastp;
- #endif
- /*
- * Status fields.
- */
- u8 status[4];
- };
- /*
- * GET/SET the value of the data pointer used by SCRIPTS.
- *
- * We must distinguish between the LOAD/STORE-based SCRIPTS
- * that use directly the header in the CCB, and the NCR-GENERIC
- * SCRIPTS that use the copy of the header in the HCB.
- */
- #if SYM_CONF_GENERIC_SUPPORT
- #define sym_set_script_dp(np, cp, dp)
- do {
- if (np->features & FE_LDSTR)
- cp->phys.head.lastp = cpu_to_scr(dp);
- else
- np->ccb_head.lastp = cpu_to_scr(dp);
- } while (0)
- #define sym_get_script_dp(np, cp)
- scr_to_cpu((np->features & FE_LDSTR) ?
- cp->phys.head.lastp : np->ccb_head.lastp)
- #else
- #define sym_set_script_dp(np, cp, dp)
- do {
- cp->phys.head.lastp = cpu_to_scr(dp);
- } while (0)
- #define sym_get_script_dp(np, cp) (cp->phys.head.lastp)
- #endif
- /*
- * Data Structure Block
- *
- * During execution of a ccb by the script processor, the
- * DSA (data structure address) register points to this
- * substructure of the ccb.
- */
- struct sym_dsb {
- /*
- * CCB header.
- * Also assumed at offset 0 of the sym_ccb structure.
- */
- /*0*/ struct sym_ccbh head;
- /*
- * Phase mismatch contexts.
- * We need two to handle correctly the SAVED DATA POINTER.
- * MUST BOTH BE AT OFFSET < 256, due to using 8 bit arithmetic
- * for address calculation from SCRIPTS.
- */
- struct sym_pmc pm0;
- struct sym_pmc pm1;
- /*
- * Table data for Script
- */
- struct sym_tblsel select;
- struct sym_tblmove smsg;
- struct sym_tblmove smsg_ext;
- struct sym_tblmove cmd;
- struct sym_tblmove sense;
- struct sym_tblmove wresid;
- struct sym_tblmove data [SYM_CONF_MAX_SG];
- };
- /*
- * Our Command Control Block
- */
- struct sym_ccb {
- /*
- * This is the data structure which is pointed by the DSA
- * register when it is executed by the script processor.
- * It must be the first entry.
- */
- struct sym_dsb phys;
- /*
- * Pointer to CAM ccb and related stuff.
- */
- cam_ccb_p cam_ccb; /* CAM scsiio ccb */
- u8 cdb_buf[16]; /* Copy of CDB */
- u8 *sns_bbuf; /* Bounce buffer for sense data */
- #ifndef SYM_SNS_BBUF_LEN
- #define SYM_SNS_BBUF_LEN (32)
- #endif
- int data_len; /* Total data length */
- int segments; /* Number of SG segments */
- u8 order; /* Tag type (if tagged command) */
- /*
- * Miscellaneous status'.
- */
- u_char nego_status; /* Negotiation status */
- u_char xerr_status; /* Extended error flags */
- u32 extra_bytes; /* Extraneous bytes transferred */
- /*
- * Message areas.
- * We prepare a message to be sent after selection.
- * We may use a second one if the command is rescheduled
- * due to CHECK_CONDITION or COMMAND TERMINATED.
- * Contents are IDENTIFY and SIMPLE_TAG.
- * While negotiating sync or wide transfer,
- * a SDTR or WDTR message is appended.
- */
- u_char scsi_smsg [12];
- u_char scsi_smsg2[12];
- /*
- * Auto request sense related fields.
- */
- u_char sensecmd[6]; /* Request Sense command */
- u_char sv_scsi_status; /* Saved SCSI status */
- u_char sv_xerr_status; /* Saved extended status */
- int sv_resid; /* Saved residual */
- /*
- * O/S specific data structure.
- */
- #ifdef SYM_HAVE_SCCB
- struct sym_sccb s;
- #endif
- /*
- * Other fields.
- */
- #ifdef SYM_OPT_HANDLE_IO_TIMEOUT
- SYM_QUEHEAD tmo_linkq; /* Optional timeout handling */
- u_int tmo_clock; /* (link and dealine value) */
- #endif
- u32 ccb_ba; /* BUS address of this CCB */
- u_short tag; /* Tag for this transfer */
- /* NO_TAG means no tag */
- u_char target;
- u_char lun;
- ccb_p link_ccbh; /* Host adapter CCB hash chain */
- SYM_QUEHEAD
- link_ccbq; /* Link to free/busy CCB queue */
- u32 startp; /* Initial data pointer */
- u32 goalp; /* Expected last data pointer */
- #ifdef SYM_OPT_HANDLE_DIR_UNKNOWN
- u32 wgoalp;
- #endif
- int ext_sg; /* Extreme data pointer, used */
- int ext_ofs; /* to calculate the residual. */
- #ifdef SYM_OPT_HANDLE_DEVICE_QUEUEING
- SYM_QUEHEAD
- link2_ccbq; /* Link for device queueing */
- u_char started; /* CCB queued to the squeue */
- #endif
- u_char to_abort; /* Want this IO to be aborted */
- #ifdef SYM_OPT_LIMIT_COMMAND_REORDERING
- u_char tags_si; /* Lun tags sum index (0,1) */
- #endif
- };
- #define CCB_BA(cp,lbl) (cp->ccb_ba + offsetof(struct sym_ccb, lbl))
- #ifdef SYM_OPT_HANDLE_DIR_UNKNOWN
- #define sym_goalp(cp) ((cp->host_flags & HF_DATA_IN) ? cp->goalp : cp->wgoalp)
- #else
- #define sym_goalp(cp) (cp->goalp)
- #endif
- /*
- * Host Control Block
- */
- struct sym_hcb {
- /*
- * Global headers.
- * Due to poorness of addressing capabilities, earlier
- * chips (810, 815, 825) copy part of the data structures
- * (CCB, TCB and LCB) in fixed areas.
- */
- #if SYM_CONF_GENERIC_SUPPORT
- struct sym_ccbh ccb_head;
- struct sym_tcbh tcb_head;
- struct sym_lcbh lcb_head;
- #endif
- /*
- * Idle task and invalid task actions and
- * their bus addresses.
- */
- struct sym_actscr idletask, notask, bad_itl, bad_itlq;
- u32 idletask_ba, notask_ba, bad_itl_ba, bad_itlq_ba;
- /*
- * Dummy lun table to protect us against target
- * returning bad lun number on reselection.
- */
- u32 *badluntbl; /* Table physical address */
- u32 badlun_sa; /* SCRIPT handler BUS address */
- /*
- * Bus address of this host control block.
- */
- u32 hcb_ba;
- /*
- * Bit 32-63 of the on-chip RAM bus address in LE format.
- * The START_RAM64 script loads the MMRS and MMWS from this
- * field.
- */
- u32 scr_ram_seg;
- /*
- * Initial value of some IO register bits.
- * These values are assumed to have been set by BIOS, and may
- * be used to probe adapter implementation differences.
- */
- u_char sv_scntl0, sv_scntl3, sv_dmode, sv_dcntl, sv_ctest3, sv_ctest4,
- sv_ctest5, sv_gpcntl, sv_stest2, sv_stest4, sv_scntl4,
- sv_stest1;
- /*
- * Actual initial value of IO register bits used by the
- * driver. They are loaded at initialisation according to
- * features that are to be enabled/disabled.
- */
- u_char rv_scntl0, rv_scntl3, rv_dmode, rv_dcntl, rv_ctest3, rv_ctest4,
- rv_ctest5, rv_stest2, rv_ccntl0, rv_ccntl1, rv_scntl4;
- /*
- * Target data.
- */
- struct sym_tcb target[SYM_CONF_MAX_TARGET];
- /*
- * Target control block bus address array used by the SCRIPT
- * on reselection.
- */
- u32 *targtbl;
- u32 targtbl_ba;
- /*
- * DMA pool handle for this HBA.
- */
- #ifdef SYM_OPT_BUS_DMA_ABSTRACTION
- m_pool_ident_t bus_dmat;
- #endif
- /*
- * O/S specific data structure
- */
- struct sym_shcb s;
- /*
- * Physical bus addresses of the chip.
- */
- u32 mmio_ba; /* MMIO 32 bit BUS address */
- int mmio_ws; /* MMIO Window size */
- u32 ram_ba; /* RAM 32 bit BUS address */
- int ram_ws; /* RAM window size */
- /*
- * SCRIPTS virtual and physical bus addresses.
- * 'script' is loaded in the on-chip RAM if present.
- * 'scripth' stays in main memory for all chips except the
- * 53C895A, 53C896 and 53C1010 that provide 8K on-chip RAM.
- */
- u_char *scripta0; /* Copy of scripts A, B, Z */
- u_char *scriptb0;
- u_char *scriptz0;
- u32 scripta_ba; /* Actual scripts A, B, Z */
- u32 scriptb_ba; /* 32 bit bus addresses. */
- u32 scriptz_ba;
- u_short scripta_sz; /* Actual size of script A, B, Z*/
- u_short scriptb_sz;
- u_short scriptz_sz;
- /*
- * Bus addresses, setup and patch methods for
- * the selected firmware.
- */
- struct sym_fwa_ba fwa_bas; /* Useful SCRIPTA bus addresses */
- struct sym_fwb_ba fwb_bas; /* Useful SCRIPTB bus addresses */
- struct sym_fwz_ba fwz_bas; /* Useful SCRIPTZ bus addresses */
- void (*fw_setup)(hcb_p np, struct sym_fw *fw);
- void (*fw_patch)(hcb_p np);
- char *fw_name;
- /*
- * General controller parameters and configuration.
- */
- u_short device_id; /* PCI device id */
- u_char revision_id; /* PCI device revision id */
- u_int features; /* Chip features map */
- u_char myaddr; /* SCSI id of the adapter */
- u_char maxburst; /* log base 2 of dwords burst */
- u_char maxwide; /* Maximum transfer width */
- u_char minsync; /* Min sync period factor (ST) */
- u_char maxsync; /* Max sync period factor (ST) */
- u_char maxoffs; /* Max scsi offset (ST) */
- u_char minsync_dt; /* Min sync period factor (DT) */
- u_char maxsync_dt; /* Max sync period factor (DT) */
- u_char maxoffs_dt; /* Max scsi offset (DT) */
- u_char multiplier; /* Clock multiplier (1,2,4) */
- u_char clock_divn; /* Number of clock divisors */
- u32 clock_khz; /* SCSI clock frequency in KHz */
- u32 pciclk_khz; /* Estimated PCI clock in KHz */
- /*
- * Start queue management.
- * It is filled up by the host processor and accessed by the
- * SCRIPTS processor in order to start SCSI commands.
- */
- volatile /* Prevent code optimizations */
- u32 *squeue; /* Start queue virtual address */
- u32 squeue_ba; /* Start queue BUS address */
- u_short squeueput; /* Next free slot of the queue */
- u_short actccbs; /* Number of allocated CCBs */
- /*
- * Command completion queue.
- * It is the same size as the start queue to avoid overflow.
- */
- u_short dqueueget; /* Next position to scan */
- volatile /* Prevent code optimizations */
- u32 *dqueue; /* Completion (done) queue */
- u32 dqueue_ba; /* Done queue BUS address */
- /*
- * Miscellaneous buffers accessed by the scripts-processor.
- * They shall be DWORD aligned, because they may be read or
- * written with a script command.
- */
- u_char msgout[8]; /* Buffer for MESSAGE OUT */
- u_char msgin [8]; /* Buffer for MESSAGE IN */
- u32 lastmsg; /* Last SCSI message sent */
- u32 scratch; /* Scratch for SCSI receive */
- /* Also used for cache test */
- /*
- * Miscellaneous configuration and status parameters.
- */
- u_char usrflags; /* Miscellaneous user flags */
- u_char scsi_mode; /* Current SCSI BUS mode */
- u_char verbose; /* Verbosity for this controller*/
- /*
- * CCB lists and queue.
- */
- ccb_p *ccbh; /* CCBs hashed by DSA value */
- /* CCB_HASH_SIZE lists of CCBs */
- SYM_QUEHEAD free_ccbq; /* Queue of available CCBs */
- SYM_QUEHEAD busy_ccbq; /* Queue of busy CCBs */
- /*
- * During error handling and/or recovery,
- * active CCBs that are to be completed with
- * error or requeued are moved from the busy_ccbq
- * to the comp_ccbq prior to completion.
- */
- SYM_QUEHEAD comp_ccbq;
- #ifdef SYM_OPT_HANDLE_DEVICE_QUEUEING
- SYM_QUEHEAD dummy_ccbq;
- #endif
- /*
- * Optional handling of IO timeouts.
- */
- #ifdef SYM_OPT_HANDLE_IO_TIMEOUT
- SYM_QUEHEAD tmo0_ccbq;
- SYM_QUEHEAD *tmo_ccbq; /* [2*SYM_TIMEOUT_ORDER_MAX] */
- u_int tmo_clock;
- u_int tmo_actq;
- #endif
- /*
- * IMMEDIATE ARBITRATION (IARB) control.
- *
- * We keep track in 'last_cp' of the last CCB that has been
- * queued to the SCRIPTS processor and clear 'last_cp' when
- * this CCB completes. If last_cp is not zero at the moment
- * we queue a new CCB, we set a flag in 'last_cp' that is
- * used by the SCRIPTS as a hint for setting IARB.
- * We donnot set more than 'iarb_max' consecutive hints for
- * IARB in order to leave devices a chance to reselect.
- * By the way, any non zero value of 'iarb_max' is unfair. :)
- */
- #ifdef SYM_CONF_IARB_SUPPORT
- u_short iarb_max; /* Max. # consecutive IARB hints*/
- u_short iarb_count; /* Actual # of these hints */
- ccb_p last_cp;
- #endif
- /*
- * Command abort handling.
- * We need to synchronize tightly with the SCRIPTS
- * processor in order to handle things correctly.
- */
- u_char abrt_msg[4]; /* Message to send buffer */
- struct sym_tblmove abrt_tbl; /* Table for the MOV of it */
- struct sym_tblsel abrt_sel; /* Sync params for selection */
- u_char istat_sem; /* Tells the chip to stop (SEM) */
- /*
- * 64 bit DMA handling.
- */
- #if SYM_CONF_DMA_ADDRESSING_MODE != 0
- u_char use_dac; /* Use PCI DAC cycles */
- #if SYM_CONF_DMA_ADDRESSING_MODE == 2
- u_char dmap_dirty; /* Dma segments registers dirty */
- u32 dmap_bah[SYM_DMAP_SIZE];/* Segment registers map */
- #endif
- #endif
- };
- #define HCB_BA(np, lbl) (np->hcb_ba + offsetof(struct sym_hcb, lbl))
- /*
- * NVRAM reading (sym_nvram.c).
- */
- void sym_nvram_setup_host (hcb_p np, struct sym_nvram *nvram);
- void sym_nvram_setup_target (hcb_p np, int target, struct sym_nvram *nvp);
- int sym_read_nvram (sdev_p np, struct sym_nvram *nvp);
- /*
- * FIRMWARES (sym_fw.c)
- */
- struct sym_fw * sym_find_firmware(struct sym_pci_chip *chip);
- void sym_fw_bind_script (hcb_p np, u32 *start, int len);
- /*
- * Driver methods called from O/S specific code.
- */
- char *sym_driver_name(void);
- void sym_print_xerr(ccb_p cp, int x_status);
- int sym_reset_scsi_bus(hcb_p np, int enab_int);
- struct sym_pci_chip *
- sym_lookup_pci_chip_table (u_short device_id, u_char revision);
- void sym_put_start_queue(hcb_p np, ccb_p cp);
- #ifdef SYM_OPT_HANDLE_DEVICE_QUEUEING
- void sym_start_next_ccbs(hcb_p np, lcb_p lp, int maxn);
- #endif
- void sym_start_up (hcb_p np, int reason);
- void sym_interrupt (hcb_p np);
- void sym_flush_comp_queue(hcb_p np, int cam_status);
- int sym_clear_tasks(hcb_p np, int cam_status, int target, int lun, int task);
- ccb_p sym_get_ccb (hcb_p np, u_char tn, u_char ln, u_char tag_order);
- void sym_free_ccb (hcb_p np, ccb_p cp);
- lcb_p sym_alloc_lcb (hcb_p np, u_char tn, u_char ln);
- int sym_queue_scsiio(hcb_p np, cam_scsiio_p csio, ccb_p cp);
- int sym_abort_scsiio(hcb_p np, cam_ccb_p ccb, int timed_out);
- int sym_abort_ccb(hcb_p np, ccb_p cp, int timed_out);
- int sym_reset_scsi_target(hcb_p np, int target);
- void sym_hcb_free(hcb_p np);
- #ifdef SYM_OPT_NVRAM_PRE_READ
- int sym_hcb_attach(hcb_p np, struct sym_fw *fw, struct sym_nvram *nvram);
- #else
- int sym_hcb_attach(hcb_p np, struct sym_fw *fw);
- #endif
- /*
- * Optionnaly, the driver may handle IO timeouts.
- */
- #ifdef SYM_OPT_HANDLE_IO_TIMEOUT
- int sym_abort_ccb(hcb_p np, ccb_p cp, int timed_out);
- void sym_timeout_ccb(hcb_p np, ccb_p cp, u_int ticks);
- static void __inline sym_untimeout_ccb(hcb_p np, ccb_p cp)
- {
- sym_remque(&cp->tmo_linkq);
- sym_insque_head(&cp->tmo_linkq, &np->tmo0_ccbq);
- }
- void sym_clock(hcb_p np);
- #endif /* SYM_OPT_HANDLE_IO_TIMEOUT */
- /*
- * Optionnaly, the driver may provide a function
- * to announce transfer rate changes.
- */
- #ifdef SYM_OPT_ANNOUNCE_TRANSFER_RATE
- void sym_announce_transfer_rate(hcb_p np, int target);
- #endif
- /*
- * Optionnaly, the driver may sniff inquiry data.
- */
- #ifdef SYM_OPT_SNIFF_INQUIRY
- #define INQ7_CMDQ (0x02)
- #define INQ7_SYNC (0x10)
- #define INQ7_WIDE16 (0x20)
- #define INQ56_CLOCKING (3<<2)
- #define INQ56_ST_ONLY (0<<2)
- #define INQ56_DT_ONLY (1<<2)
- #define INQ56_ST_DT (3<<2)
- void sym_update_trans_settings(hcb_p np, tcb_p tp);
- int
- __sym_sniff_inquiry(hcb_p np, u_char tn, u_char ln,
- u_char *inq_data, int inq_len);
- #endif
- /*
- * Build a scatter/gather entry.
- *
- * For 64 bit systems, we use the 8 upper bits of the size field
- * to provide bus address bits 32-39 to the SCRIPTS processor.
- * This allows the 895A, 896, 1010 to address up to 1 TB of memory.
- */
- #if SYM_CONF_DMA_ADDRESSING_MODE == 0
- #define sym_build_sge(np, data, badd, len)
- do {
- (data)->addr = cpu_to_scr(badd);
- (data)->size = cpu_to_scr(len);
- } while (0)
- #elif SYM_CONF_DMA_ADDRESSING_MODE == 1
- #define sym_build_sge(np, data, badd, len)
- do {
- (data)->addr = cpu_to_scr(badd);
- (data)->size = cpu_to_scr((((badd) >> 8) & 0xff000000) + len);
- } while (0)
- #elif SYM_CONF_DMA_ADDRESSING_MODE == 2
- int sym_lookup_dmap(hcb_p np, u32 h, int s);
- static __inline void
- sym_build_sge(hcb_p np, struct sym_tblmove *data, u64 badd, int len)
- {
- u32 h = (badd>>32);
- int s = (h&SYM_DMAP_MASK);
- if (h != np->dmap_bah[s])
- goto bad;
- good:
- (data)->addr = cpu_to_scr(badd);
- (data)->size = cpu_to_scr((s<<24) + len);
- return;
- bad:
- s = sym_lookup_dmap(np, h, s);
- goto good;
- }
- #else
- #error "Unsupported DMA addressing mode"
- #endif
- /*
- * Set up data pointers used by SCRIPTS.
- * Called from O/S specific code.
- */
- static void __inline
- sym_setup_data_pointers(hcb_p np, ccb_p cp, int dir)
- {
- u32 lastp, goalp;
- /*
- * No segments means no data.
- */
- if (!cp->segments)
- dir = CAM_DIR_NONE;
- /*
- * Set the data pointer.
- */
- switch(dir) {
- #ifdef SYM_OPT_HANDLE_DIR_UNKNOWN
- case CAM_DIR_UNKNOWN:
- #endif
- case CAM_DIR_OUT:
- goalp = SCRIPTA_BA (np, data_out2) + 8;
- lastp = goalp - 8 - (cp->segments * (2*4));
- #ifdef SYM_OPT_HANDLE_DIR_UNKNOWN
- cp->wgoalp = cpu_to_scr(goalp);
- if (dir != CAM_DIR_UNKNOWN)
- break;
- cp->phys.head.wlastp = cpu_to_scr(lastp);
- /* fall through */
- #else
- break;
- #endif
- case CAM_DIR_IN:
- cp->host_flags |= HF_DATA_IN;
- goalp = SCRIPTA_BA (np, data_in2) + 8;
- lastp = goalp - 8 - (cp->segments * (2*4));
- break;
- case CAM_DIR_NONE:
- default:
- #ifdef SYM_OPT_HANDLE_DIR_UNKNOWN
- cp->host_flags |= HF_DATA_IN;
- #endif
- lastp = goalp = SCRIPTB_BA (np, no_data);
- break;
- }
- /*
- * Set all pointers values needed by SCRIPTS.
- */
- cp->phys.head.lastp = cpu_to_scr(lastp);
- cp->phys.head.savep = cpu_to_scr(lastp);
- cp->startp = cp->phys.head.savep;
- cp->goalp = cpu_to_scr(goalp);
- #ifdef SYM_OPT_HANDLE_DIR_UNKNOWN
- /*
- * If direction is unknown, start at data_io.
- */
- if (dir == CAM_DIR_UNKNOWN)
- cp->phys.head.savep = cpu_to_scr(SCRIPTB_BA (np, data_io));
- #endif
- }
- /*
- * MEMORY ALLOCATOR.
- */
- /*
- * Shortest memory chunk is (1<<SYM_MEM_SHIFT), currently 16.
- * Actual allocations happen as SYM_MEM_CLUSTER_SIZE sized.
- * (1 PAGE at a time is just fine).
- */
- #define SYM_MEM_SHIFT 4
- #define SYM_MEM_CLUSTER_SIZE (1UL << SYM_MEM_CLUSTER_SHIFT)
- #define SYM_MEM_CLUSTER_MASK (SYM_MEM_CLUSTER_SIZE-1)
- /*
- * Link between free memory chunks of a given size.
- */
- typedef struct sym_m_link {
- struct sym_m_link *next;
- } *m_link_p;
- /*
- * Virtual to bus physical translation for a given cluster.
- * Such a structure is only useful with DMA abstraction.
- */
- #ifdef SYM_OPT_BUS_DMA_ABSTRACTION
- typedef struct sym_m_vtob { /* Virtual to Bus address translation */
- struct sym_m_vtob *next;
- #ifdef SYM_HAVE_M_SVTOB
- struct sym_m_svtob s; /* OS specific data structure */
- #endif
- m_addr_t vaddr; /* Virtual address */
- m_addr_t baddr; /* Bus physical address */
- } *m_vtob_p;
- /* Hash this stuff a bit to speed up translations */
- #define VTOB_HASH_SHIFT 5
- #define VTOB_HASH_SIZE (1UL << VTOB_HASH_SHIFT)
- #define VTOB_HASH_MASK (VTOB_HASH_SIZE-1)
- #define VTOB_HASH_CODE(m)
- ((((m_addr_t) (m)) >> SYM_MEM_CLUSTER_SHIFT) & VTOB_HASH_MASK)
- #endif /* SYM_OPT_BUS_DMA_ABSTRACTION */
- /*
- * Memory pool of a given kind.
- * Ideally, we want to use:
- * 1) 1 pool for memory we donnot need to involve in DMA.
- * 2) The same pool for controllers that require same DMA
- * constraints and features.
- * The OS specific m_pool_id_t thing and the sym_m_pool_match()
- * method are expected to tell the driver about.
- */
- typedef struct sym_m_pool {
- #ifdef SYM_OPT_BUS_DMA_ABSTRACTION
- m_pool_ident_t dev_dmat; /* Identifies the pool (see above) */
- m_addr_t (*get_mem_cluster)(struct sym_m_pool *);
- #ifdef SYM_MEM_FREE_UNUSED
- void (*free_mem_cluster)(struct sym_m_pool *, m_addr_t);
- #endif
- #define M_GET_MEM_CLUSTER() mp->get_mem_cluster(mp)
- #define M_FREE_MEM_CLUSTER(p) mp->free_mem_cluster(mp, p)
- #ifdef SYM_HAVE_M_SPOOL
- struct sym_m_spool s; /* OS specific data structure */
- #endif
- int nump;
- m_vtob_p vtob[VTOB_HASH_SIZE];
- struct sym_m_pool *next;
- #else
- #define M_GET_MEM_CLUSTER() sym_get_mem_cluster()
- #define M_FREE_MEM_CLUSTER(p) sym_free_mem_cluster(p)
- #endif /* SYM_OPT_BUS_DMA_ABSTRACTION */
- struct sym_m_link h[SYM_MEM_CLUSTER_SHIFT - SYM_MEM_SHIFT + 1];
- } *m_pool_p;
- /*
- * Alloc and free non DMAable memory.
- */
- void sym_mfree_unlocked(void *ptr, int size, char *name);
- void *sym_calloc_unlocked(int size, char *name);
- /*
- * Alloc, free and translate addresses to bus physical
- * for DMAable memory.
- */
- #ifdef SYM_OPT_BUS_DMA_ABSTRACTION
- void *__sym_calloc_dma_unlocked(m_pool_ident_t dev_dmat, int size, char *name);
- void
- __sym_mfree_dma_unlocked(m_pool_ident_t dev_dmat, void *m,int size, char *name);
- u32 __vtobus_unlocked(m_pool_ident_t dev_dmat, void *m);
- #endif
- /*
- * Verbs used by the driver code for DMAable memory handling.
- * The _uvptv_ macro avoids a nasty warning about pointer to volatile
- * being discarded.
- */
- #define _uvptv_(p) ((void *)((u_long)(p)))
- #define _sym_calloc_dma(np, l, n) __sym_calloc_dma(np->bus_dmat, l, n)
- #define _sym_mfree_dma(np, p, l, n)
- __sym_mfree_dma(np->bus_dmat, _uvptv_(p), l, n)
- #define sym_calloc_dma(l, n) _sym_calloc_dma(np, l, n)
- #define sym_mfree_dma(p, l, n) _sym_mfree_dma(np, p, l, n)
- #define _vtobus(np, p) __vtobus(np->bus_dmat, _uvptv_(p))
- #define vtobus(p) _vtobus(np, p)
- /*
- * Override some function names.
- */
- #define PRINT_ADDR sym_print_addr
- #define PRINT_TARGET sym_print_target
- #define PRINT_LUN sym_print_lun
- #define MDELAY sym_mdelay
- #define UDELAY sym_udelay
- #endif /* SYM_HIPD_H */