/* * Device driver for the SYMBIOS/LSILOGIC 53C8XX and 53C1010 family * of PCI-SCSI IO processors. * * Copyright (C) 1999-2001 Gerard Roudier * * 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 * Stefan Esser * Copyright (C) 1994 Wolfgang Stanglmeier * * Other major contributions: * * NVRAM detection and reading. * Copyright (C) 1997 Richard Waltham * *----------------------------------------------------------------------------- * * 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. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef SYM_GLUE_H #define SYM_GLUE_H #include #include #include #include #include #include #include #include #include #ifdef __sparc__ # include #endif #include #include #include #include #include #include "sym53c8xx.h" #include "sym_defs.h" #include "sym_misc.h" /* * Configuration addendum for Linux. */ #define SYM_CONF_TIMER_INTERVAL ((HZ+1)/2) #undef SYM_OPT_HANDLE_DEVICE_QUEUEING #define SYM_OPT_LIMIT_COMMAND_REORDERING /* * Print a message with severity. */ #define printf_emerg(args...) printk(KERN_EMERG args) #define printf_alert(args...) printk(KERN_ALERT args) #define printf_crit(args...) printk(KERN_CRIT args) #define printf_err(args...) printk(KERN_ERR args) #define printf_warning(args...) printk(KERN_WARNING args) #define printf_notice(args...) printk(KERN_NOTICE args) #define printf_info(args...) printk(KERN_INFO args) #define printf_debug(args...) printk(KERN_DEBUG args) #define printf(args...) printk(args) /* * A 'read barrier' flushes any data that have been prefetched * by the processor due to out of order execution. Such a barrier * must notably be inserted prior to looking at data that have * been DMAed, assuming that program does memory READs in proper * order and that the device ensured proper ordering of WRITEs. * * A 'write barrier' prevents any previous WRITEs to pass further * WRITEs. Such barriers must be inserted each time another agent * relies on ordering of WRITEs. * * Note that, due to posting of PCI memory writes, we also must * insert dummy PCI read transactions when some ordering involving * both directions over the PCI does matter. PCI transactions are * fully ordered in each direction. */ #define MEMORY_READ_BARRIER() rmb() #define MEMORY_WRITE_BARRIER() wmb() /* * IO functions definition for big/little endian CPU support. * For now, PCI chips are only supported in little endian addressing mode, */ #ifdef __BIG_ENDIAN #define readw_l2b readw #define readl_l2b readl #define writew_b2l writew #define writel_b2l writel #else /* little endian */ #define readw_raw readw #define readl_raw readl #define writew_raw writew #define writel_raw writel #endif /* endian */ #ifdef SYM_CONF_CHIP_BIG_ENDIAN #error "Chips in BIG ENDIAN addressing mode are not (yet) supported" #endif /* * If the CPU and the chip use same endian-ness addressing, * no byte reordering is needed for script patching. * Macro cpu_to_scr() is to be used for script patching. * Macro scr_to_cpu() is to be used for getting a DWORD * from the script. */ #define cpu_to_scr(dw) cpu_to_le32(dw) #define scr_to_cpu(dw) le32_to_cpu(dw) /* * These ones are used as return code from * error recovery handlers under Linux. */ #define SCSI_SUCCESS SUCCESS #define SCSI_FAILED FAILED /* * System specific target data structure. * None for now, under Linux. */ /* #define SYM_HAVE_STCB */ /* * System specific lun data structure. */ #define SYM_HAVE_SLCB struct sym_slcb { u_short reqtags; /* Number of tags requested by user */ u_short scdev_depth; /* Queue depth set in select_queue_depth() */ }; /* * System specific command data structure. * Not needed under Linux. */ /* struct sym_sccb */ /* * System specific host data structure. */ struct sym_shcb { /* * Chip and controller indentification. */ int unit; char inst_name[16]; char chip_name[8]; struct Scsi_Host *host; void __iomem * ioaddr; /* MMIO kernel io address */ void __iomem * ramaddr; /* RAM kernel io address */ struct timer_list timer; /* Timer handler link header */ u_long lasttime; u_long settle_time; /* Resetting the SCSI BUS */ u_char settle_time_valid; }; /* * Return the name of the controller. */ #define sym_name(np) (np)->s.inst_name struct sym_nvram; /* * The IO macros require a struct called 's' and are abused in sym_nvram.c */ struct sym_device { struct pci_dev *pdev; unsigned long mmio_base; unsigned long ram_base; struct { void __iomem *ioaddr; void __iomem *ramaddr; } s; struct sym_chip chip; struct sym_nvram *nvram; u_char host_id; }; /* * Driver host data structure. */ struct sym_data { struct sym_hcb *ncb; struct completion *io_reset; /* PCI error handling */ struct pci_dev *pdev; }; static inline struct sym_hcb * sym_get_hcb(struct Scsi_Host *host) { return ((struct sym_data *)host->hostdata)->ncb; } #include "sym_fw.h" #include "sym_hipd.h" /* * Set the status field of a CAM CCB. */ static inline void sym_set_cam_status(struct scsi_cmnd *cmd, int status) { cmd->result &= ~(0xff << 16); cmd->result |= (status << 16); } /* * Get the status field of a CAM CCB. */ static inline int sym_get_cam_status(struct scsi_cmnd *cmd) { return host_byte(cmd->result); } /* * Build CAM result for a successful IO and for a failed IO. */ static inline void sym_set_cam_result_ok(struct sym_ccb *cp, struct scsi_cmnd *cmd, int resid) { scsi_set_resid(cmd, resid); cmd->result = (((DID_OK) << 16) + ((cp->ssss_status) & 0x7f)); } void sym_set_cam_result_error(struct sym_hcb *np, struct sym_ccb *cp, int resid); void sym_xpt_done(struct sym_hcb *np, struct scsi_cmnd *ccb); #define sym_print_addr(cmd, arg...) dev_info(&cmd->device->sdev_gendev , ## arg) void sym_xpt_async_bus_reset(struct sym_hcb *np); int sym_setup_data_and_start (struct sym_hcb *np, struct scsi_cmnd *csio, struct sym_ccb *cp); void sym_log_bus_error(struct Scsi_Host *); void sym_dump_registers(struct Scsi_Host *); #endif /* SYM_GLUE_H */