diff options
Diffstat (limited to 'drivers/scsi/aic7xxx/aic79xx_osm.c')
| -rw-r--r-- | drivers/scsi/aic7xxx/aic79xx_osm.c | 1107 |
1 files changed, 584 insertions, 523 deletions
diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c index 7254ea535a1..69d5c43a65e 100644 --- a/drivers/scsi/aic7xxx/aic79xx_osm.c +++ b/drivers/scsi/aic7xxx/aic79xx_osm.c @@ -53,6 +53,7 @@ static struct scsi_transport_template *ahd_linux_transport_template = NULL; #include <linux/blkdev.h> /* For block_size() */ #include <linux/delay.h> /* For ssleep/msleep */ #include <linux/device.h> +#include <linux/slab.h> /* * Bucket size for counting good commands in between bad ones. @@ -193,7 +194,7 @@ struct ahd_linux_iocell_opts #define AIC79XX_PRECOMP_INDEX 0 #define AIC79XX_SLEWRATE_INDEX 1 #define AIC79XX_AMPLITUDE_INDEX 2 -static struct ahd_linux_iocell_opts aic79xx_iocell_info[] = +static const struct ahd_linux_iocell_opts aic79xx_iocell_info[] = { AIC79XX_DEFAULT_IOOPTS, AIC79XX_DEFAULT_IOOPTS, @@ -243,25 +244,6 @@ ahd_print_path(struct ahd_softc *ahd, struct scb *scb) static uint32_t aic79xx_no_reset; /* - * Certain PCI motherboards will scan PCI devices from highest to lowest, - * others scan from lowest to highest, and they tend to do all kinds of - * strange things when they come into contact with PCI bridge chips. The - * net result of all this is that the PCI card that is actually used to boot - * the machine is very hard to detect. Most motherboards go from lowest - * PCI slot number to highest, and the first SCSI controller found is the - * one you boot from. The only exceptions to this are when a controller - * has its BIOS disabled. So, we by default sort all of our SCSI controllers - * from lowest PCI slot number to highest PCI slot number. We also force - * all controllers with their BIOS disabled to the end of the list. This - * works on *almost* all computers. Where it doesn't work, we have this - * option. Setting this option to non-0 will reverse the order of the sort - * to highest first, then lowest, but will still leave cards with their BIOS - * disabled at the very end. That should fix everyone up unless there are - * really strange cirumstances. - */ -static uint32_t aic79xx_reverse_scan; - -/* * Should we force EXTENDED translation on a controller. * 0 == Use whatever is in the SEEPROM or default to off * 1 == Use whatever is in the SEEPROM or default to on @@ -312,7 +294,7 @@ static uint32_t aic79xx_seltime; * force all outstanding transactions to be serviced prior to a new * transaction. */ -uint32_t aic79xx_periodic_otag; +static uint32_t aic79xx_periodic_otag; /* Some storage boxes are using an LSI chip which has a bug making it * impossible to use aic79xx Rev B chip in 320 speeds. The following @@ -334,23 +316,22 @@ uint32_t aic79xx_slowcrc; */ static char *aic79xx = NULL; -MODULE_AUTHOR("Maintainer: Justin T. Gibbs <gibbs@scsiguy.com>"); -MODULE_DESCRIPTION("Adaptec Aic790X U320 SCSI Host Bus Adapter driver"); +MODULE_AUTHOR("Maintainer: Hannes Reinecke <hare@suse.de>"); +MODULE_DESCRIPTION("Adaptec AIC790X U320 SCSI Host Bus Adapter driver"); MODULE_LICENSE("Dual BSD/GPL"); MODULE_VERSION(AIC79XX_DRIVER_VERSION); module_param(aic79xx, charp, 0444); MODULE_PARM_DESC(aic79xx, -"period delimited, options string.\n" +"period-delimited options string:\n" " verbose Enable verbose/diagnostic logging\n" " allow_memio Allow device registers to be memory mapped\n" " debug Bitmask of debug values to enable\n" -" no_reset Supress initial bus resets\n" +" no_reset Suppress initial bus resets\n" " extended Enable extended geometry on all controllers\n" " periodic_otag Send an ordered tagged transaction\n" " periodically to prevent tag starvation.\n" " This may be required by some older disk\n" " or drives/RAID arrays.\n" -" reverse_scan Sort PCI devices highest Bus/Slot to lowest\n" " tag_info:<tag_str> Set per-target tag depth\n" " global_tag_depth:<int> Global tag depth for all targets on all buses\n" " slewrate:<slewrate_list>Set the signal slew rate (0-15).\n" @@ -360,21 +341,20 @@ MODULE_PARM_DESC(aic79xx, " (0/256ms,1/128ms,2/64ms,3/32ms)\n" " slowcrc Turn on the SLOWCRC bit (Rev B only)\n" "\n" -" Sample /etc/modprobe.conf line:\n" -" Enable verbose logging\n" -" Set tag depth on Controller 2/Target 2 to 10 tags\n" -" Shorten the selection timeout to 128ms\n" +" Sample modprobe configuration file:\n" +" # Enable verbose logging\n" +" # Set tag depth on Controller 2/Target 2 to 10 tags\n" +" # Shorten the selection timeout to 128ms\n" "\n" " options aic79xx 'aic79xx=verbose.tag_info:{{}.{}.{..10}}.seltime:1'\n" -"\n"); +); static void ahd_linux_handle_scsi_status(struct ahd_softc *, struct scsi_device *, struct scb *); static void ahd_linux_queue_cmd_complete(struct ahd_softc *ahd, struct scsi_cmnd *cmd); -static void ahd_linux_sem_timeout(u_long arg); -static int ahd_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag); +static int ahd_linux_queue_abort_cmd(struct scsi_cmnd *cmd); static void ahd_linux_initialize_scsi_bus(struct ahd_softc *ahd); static u_int ahd_linux_user_tagdepth(struct ahd_softc *ahd, struct ahd_devinfo *devinfo); @@ -384,32 +364,180 @@ static int ahd_linux_run_command(struct ahd_softc*, struct scsi_cmnd *); static void ahd_linux_setup_tag_info_global(char *p); static int aic79xx_setup(char *c); +static void ahd_freeze_simq(struct ahd_softc *ahd); +static void ahd_release_simq(struct ahd_softc *ahd); static int ahd_linux_unit; +/************************** OS Utility Wrappers *******************************/ +void ahd_delay(long); +void +ahd_delay(long usec) +{ + /* + * udelay on Linux can have problems for + * multi-millisecond waits. Wait at most + * 1024us per call. + */ + while (usec > 0) { + udelay(usec % 1024); + usec -= 1024; + } +} + + +/***************************** Low Level I/O **********************************/ +uint8_t ahd_inb(struct ahd_softc * ahd, long port); +void ahd_outb(struct ahd_softc * ahd, long port, uint8_t val); +void ahd_outw_atomic(struct ahd_softc * ahd, + long port, uint16_t val); +void ahd_outsb(struct ahd_softc * ahd, long port, + uint8_t *, int count); +void ahd_insb(struct ahd_softc * ahd, long port, + uint8_t *, int count); + +uint8_t +ahd_inb(struct ahd_softc * ahd, long port) +{ + uint8_t x; + + if (ahd->tags[0] == BUS_SPACE_MEMIO) { + x = readb(ahd->bshs[0].maddr + port); + } else { + x = inb(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF)); + } + mb(); + return (x); +} + +#if 0 /* unused */ +static uint16_t +ahd_inw_atomic(struct ahd_softc * ahd, long port) +{ + uint8_t x; + + if (ahd->tags[0] == BUS_SPACE_MEMIO) { + x = readw(ahd->bshs[0].maddr + port); + } else { + x = inw(ahd->bshs[(port) >> 8].ioport + ((port) & 0xFF)); + } + mb(); + return (x); +} +#endif + +void +ahd_outb(struct ahd_softc * ahd, long port, uint8_t val) +{ + if (ahd->tags[0] == BUS_SPACE_MEMIO) { + writeb(val, ahd->bshs[0].maddr + port); + } else { + outb(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF)); + } + mb(); +} + +void +ahd_outw_atomic(struct ahd_softc * ahd, long port, uint16_t val) +{ + if (ahd->tags[0] == BUS_SPACE_MEMIO) { + writew(val, ahd->bshs[0].maddr + port); + } else { + outw(val, ahd->bshs[(port) >> 8].ioport + (port & 0xFF)); + } + mb(); +} + +void +ahd_outsb(struct ahd_softc * ahd, long port, uint8_t *array, int count) +{ + int i; + + /* + * There is probably a more efficient way to do this on Linux + * but we don't use this for anything speed critical and this + * should work. + */ + for (i = 0; i < count; i++) + ahd_outb(ahd, port, *array++); +} + +void +ahd_insb(struct ahd_softc * ahd, long port, uint8_t *array, int count) +{ + int i; + + /* + * There is probably a more efficient way to do this on Linux + * but we don't use this for anything speed critical and this + * should work. + */ + for (i = 0; i < count; i++) + *array++ = ahd_inb(ahd, port); +} + +/******************************* PCI Routines *********************************/ +uint32_t +ahd_pci_read_config(ahd_dev_softc_t pci, int reg, int width) +{ + switch (width) { + case 1: + { + uint8_t retval; + + pci_read_config_byte(pci, reg, &retval); + return (retval); + } + case 2: + { + uint16_t retval; + pci_read_config_word(pci, reg, &retval); + return (retval); + } + case 4: + { + uint32_t retval; + pci_read_config_dword(pci, reg, &retval); + return (retval); + } + default: + panic("ahd_pci_read_config: Read size too big"); + /* NOTREACHED */ + return (0); + } +} + +void +ahd_pci_write_config(ahd_dev_softc_t pci, int reg, uint32_t value, int width) +{ + switch (width) { + case 1: + pci_write_config_byte(pci, reg, value); + break; + case 2: + pci_write_config_word(pci, reg, value); + break; + case 4: + pci_write_config_dword(pci, reg, value); + break; + default: + panic("ahd_pci_write_config: Write size too big"); + /* NOTREACHED */ + } +} + /****************************** Inlines ***************************************/ -static __inline void ahd_linux_unmap_scb(struct ahd_softc*, struct scb*); +static void ahd_linux_unmap_scb(struct ahd_softc*, struct scb*); -static __inline void +static void ahd_linux_unmap_scb(struct ahd_softc *ahd, struct scb *scb) { struct scsi_cmnd *cmd; - int direction; cmd = scb->io_ctx; - direction = cmd->sc_data_direction; ahd_sync_sglist(ahd, scb, BUS_DMASYNC_POSTWRITE); - if (cmd->use_sg != 0) { - struct scatterlist *sg; - - sg = (struct scatterlist *)cmd->request_buffer; - pci_unmap_sg(ahd->dev_softc, sg, cmd->use_sg, direction); - } else if (cmd->request_bufflen != 0) { - pci_unmap_single(ahd->dev_softc, - scb->platform_data->buf_busaddr, - cmd->request_bufflen, direction); - } + scsi_dma_unmap(cmd); } /******************************** Macros **************************************/ @@ -430,16 +558,13 @@ ahd_linux_info(struct Scsi_Host *host) bp = &buffer[0]; ahd = *(struct ahd_softc **)host->hostdata; memset(bp, 0, sizeof(buffer)); - strcpy(bp, "Adaptec AIC79XX PCI-X SCSI HBA DRIVER, Rev "); - strcat(bp, AIC79XX_DRIVER_VERSION); - strcat(bp, "\n"); - strcat(bp, " <"); + strcpy(bp, "Adaptec AIC79XX PCI-X SCSI HBA DRIVER, Rev " AIC79XX_DRIVER_VERSION "\n" + " <"); strcat(bp, ahd->description); - strcat(bp, ">\n"); - strcat(bp, " "); + strcat(bp, ">\n" + " "); ahd_controller_info(ahd, ahd_info); strcat(bp, ahd_info); - strcat(bp, "\n"); return (bp); } @@ -448,27 +573,24 @@ ahd_linux_info(struct Scsi_Host *host) * Queue an SCB to the controller. */ static int -ahd_linux_queue(struct scsi_cmnd * cmd, void (*scsi_done) (struct scsi_cmnd *)) +ahd_linux_queue_lck(struct scsi_cmnd * cmd, void (*scsi_done) (struct scsi_cmnd *)) { struct ahd_softc *ahd; struct ahd_linux_device *dev = scsi_transport_device_data(cmd->device); int rtn = SCSI_MLQUEUE_HOST_BUSY; - unsigned long flags; ahd = *(struct ahd_softc **)cmd->device->host->hostdata; - ahd_lock(ahd, &flags); - if (ahd->platform_data->qfrozen == 0) { - cmd->scsi_done = scsi_done; - cmd->result = CAM_REQ_INPROG << 16; - rtn = ahd_linux_run_command(ahd, dev, cmd); + cmd->scsi_done = scsi_done; + cmd->result = CAM_REQ_INPROG << 16; + rtn = ahd_linux_run_command(ahd, dev, cmd); - } - ahd_unlock(ahd, &flags); return rtn; } -static inline struct scsi_target ** +static DEF_SCSI_QCMD(ahd_linux_queue) + +static struct scsi_target ** ahd_linux_target_in_softc(struct scsi_target *starget) { struct ahd_softc *ahd = @@ -487,9 +609,9 @@ ahd_linux_target_alloc(struct scsi_target *starget) { struct ahd_softc *ahd = *((struct ahd_softc **)dev_to_shost(&starget->dev)->hostdata); + struct seeprom_config *sc = ahd->seep_config; unsigned long flags; struct scsi_target **ahd_targp = ahd_linux_target_in_softc(starget); - struct ahd_linux_target *targ = scsi_transport_target_data(starget); struct ahd_devinfo devinfo; struct ahd_initiator_tinfo *tinfo; struct ahd_tmode_tstate *tstate; @@ -500,20 +622,35 @@ ahd_linux_target_alloc(struct scsi_target *starget) BUG_ON(*ahd_targp != NULL); *ahd_targp = starget; - memset(targ, 0, sizeof(*targ)); + + if (sc) { + int flags = sc->device_flags[starget->id]; + + tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id, + starget->id, &tstate); + + if ((flags & CFPACKETIZED) == 0) { + /* don't negotiate packetized (IU) transfers */ + spi_max_iu(starget) = 0; + } else { + if ((ahd->features & AHD_RTI) == 0) + spi_rti(starget) = 0; + } + + if ((flags & CFQAS) == 0) + spi_max_qas(starget) = 0; + + /* Transinfo values have been set to BIOS settings */ + spi_max_width(starget) = (flags & CFWIDEB) ? 1 : 0; + spi_min_period(starget) = tinfo->user.period; + spi_max_offset(starget) = tinfo->user.offset; + } tinfo = ahd_fetch_transinfo(ahd, channel, ahd->our_id, starget->id, &tstate); ahd_compile_devinfo(&devinfo, ahd->our_id, starget->id, CAM_LUN_WILDCARD, channel, ROLE_INITIATOR); - spi_min_period(starget) = AHD_SYNCRATE_MAX; /* We can do U320 */ - if ((ahd->bugs & AHD_PACED_NEGTABLE_BUG) != 0) - spi_max_offset(starget) = MAX_OFFSET_PACED_BUG; - else - spi_max_offset(starget) = MAX_OFFSET_PACED; - spi_max_width(starget) = ahd->features & AHD_WIDE; - ahd_set_syncrate(ahd, &devinfo, 0, 0, 0, AHD_TRANS_GOAL, /*paused*/FALSE); ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT, @@ -536,14 +673,10 @@ ahd_linux_slave_alloc(struct scsi_device *sdev) { struct ahd_softc *ahd = *((struct ahd_softc **)sdev->host->hostdata); - struct scsi_target *starget = sdev->sdev_target; - struct ahd_linux_target *targ = scsi_transport_target_data(starget); struct ahd_linux_device *dev; if (bootverbose) - printf("%s: Slave Alloc %d\n", ahd_name(ahd), sdev->id); - - BUG_ON(targ->sdev[sdev->lun] != NULL); + printk("%s: Slave Alloc %d\n", ahd_name(ahd), sdev->id); dev = scsi_transport_device_data(sdev); memset(dev, 0, sizeof(*dev)); @@ -561,8 +694,6 @@ ahd_linux_slave_alloc(struct scsi_device *sdev) */ dev->maxtags = 0; - targ->sdev[sdev->lun] = sdev; - return (0); } @@ -584,23 +715,6 @@ ahd_linux_slave_configure(struct scsi_device *sdev) return 0; } -static void -ahd_linux_slave_destroy(struct scsi_device *sdev) -{ - struct ahd_softc *ahd; - struct ahd_linux_device *dev = scsi_transport_device_data(sdev); - struct ahd_linux_target *targ = scsi_transport_target_data(sdev->sdev_target); - - ahd = *((struct ahd_softc **)sdev->host->hostdata); - if (bootverbose) - printf("%s: Slave Destroy %d\n", ahd_name(ahd), sdev->id); - - BUG_ON(dev->active); - - targ->sdev[sdev->lun] = NULL; - -} - #if defined(__i386__) /* * Return the disk geometry for the given SCSI device. @@ -654,10 +768,9 @@ static int ahd_linux_abort(struct scsi_cmnd *cmd) { int error; + + error = ahd_linux_queue_abort_cmd(cmd); - error = ahd_linux_queue_recovery_cmd(cmd, SCB_ABORT); - if (error != 0) - printf("aic79xx_abort returns 0x%x\n", error); return error; } @@ -667,12 +780,97 @@ ahd_linux_abort(struct scsi_cmnd *cmd) static int ahd_linux_dev_reset(struct scsi_cmnd *cmd) { - int error; + struct ahd_softc *ahd; + struct ahd_linux_device *dev; + struct scb *reset_scb; + u_int cdb_byte; + int retval = SUCCESS; + int paused; + int wait; + struct ahd_initiator_tinfo *tinfo; + struct ahd_tmode_tstate *tstate; + unsigned long flags; + DECLARE_COMPLETION_ONSTACK(done); - error = ahd_linux_queue_recovery_cmd(cmd, SCB_DEVICE_RESET); - if (error != 0) - printf("aic79xx_dev_reset returns 0x%x\n", error); - return error; + reset_scb = NULL; + paused = FALSE; + wait = FALSE; + ahd = *(struct ahd_softc **)cmd->device->host->hostdata; + + scmd_printk(KERN_INFO, cmd, + "Attempting to queue a TARGET RESET message:"); + + printk("CDB:"); + for (cdb_byte = 0; cdb_byte < cmd->cmd_len; cdb_byte++) + printk(" 0x%x", cmd->cmnd[cdb_byte]); + printk("\n"); + + /* + * Determine if we currently own this command. + */ + dev = scsi_transport_device_data(cmd->device); + + if (dev == NULL) { + /* + * No target device for this command exists, + * so we must not still own the command. + */ + scmd_printk(KERN_INFO, cmd, "Is not an active device\n"); + return SUCCESS; + } + + /* + * Generate us a new SCB + */ + reset_scb = ahd_get_scb(ahd, AHD_NEVER_COL_IDX); + if (!reset_scb) { + scmd_printk(KERN_INFO, cmd, "No SCB available\n"); + return FAILED; + } + + tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id, + cmd->device->id, &tstate); + reset_scb->io_ctx = cmd; + reset_scb->platform_data->dev = dev; + reset_scb->sg_count = 0; + ahd_set_residual(reset_scb, 0); + ahd_set_sense_residual(reset_scb, 0); + reset_scb->platform_data->xfer_len = 0; + reset_scb->hscb->control = 0; + reset_scb->hscb->scsiid = BUILD_SCSIID(ahd,cmd); + reset_scb->hscb->lun = cmd->device->lun; + reset_scb->hscb->cdb_len = 0; + reset_scb->hscb->task_management = SIU_TASKMGMT_LUN_RESET; + reset_scb->flags |= SCB_DEVICE_RESET|SCB_RECOVERY_SCB|SCB_ACTIVE; + if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) { + reset_scb->flags |= SCB_PACKETIZED; + } else { + reset_scb->hscb->control |= MK_MESSAGE; + } + dev->openings--; + dev->active++; + dev->commands_issued++; + + ahd_lock(ahd, &flags); + + LIST_INSERT_HEAD(&ahd->pending_scbs, reset_scb, pending_links); + ahd_queue_scb(ahd, reset_scb); + + ahd->platform_data->eh_done = &done; + ahd_unlock(ahd, &flags); + + printk("%s: Device reset code sleeping\n", ahd_name(ahd)); + if (!wait_for_completion_timeout(&done, 5 * HZ)) { + ahd_lock(ahd, &flags); + ahd->platform_data->eh_done = NULL; + ahd_unlock(ahd, &flags); + printk("%s: Device reset timer expired (active %d)\n", + ahd_name(ahd), dev->active); + retval = FAILED; + } + printk("%s: Device reset returning 0x%x\n", ahd_name(ahd), retval); + + return (retval); } /* @@ -682,22 +880,23 @@ static int ahd_linux_bus_reset(struct scsi_cmnd *cmd) { struct ahd_softc *ahd; - u_long s; int found; + unsigned long flags; ahd = *(struct ahd_softc **)cmd->device->host->hostdata; #ifdef AHD_DEBUG if ((ahd_debug & AHD_SHOW_RECOVERY) != 0) - printf("%s: Bus reset called for cmd %p\n", + printk("%s: Bus reset called for cmd %p\n", ahd_name(ahd), cmd); #endif - ahd_lock(ahd, &s); + ahd_lock(ahd, &flags); + found = ahd_reset_channel(ahd, scmd_channel(cmd) + 'A', /*initiate reset*/TRUE); - ahd_unlock(ahd, &s); + ahd_unlock(ahd, &flags); if (bootverbose) - printf("%s: SCSI bus reset delivered. " + printk("%s: SCSI bus reset delivered. " "%d SCBs aborted.\n", ahd_name(ahd), found); return (SUCCESS); @@ -707,7 +906,8 @@ struct scsi_host_template aic79xx_driver_template = { .module = THIS_MODULE, .name = "aic79xx", .proc_name = "aic79xx", - .proc_info = ahd_linux_proc_info, + .show_info = ahd_linux_show_info, + .write_info = ahd_proc_write_seeprom, .info = ahd_linux_info, .queuecommand = ahd_linux_queue, .eh_abort_handler = ahd_linux_abort, @@ -718,11 +918,11 @@ struct scsi_host_template aic79xx_driver_template = { #endif .can_queue = AHD_MAX_QUEUE, .this_id = -1, + .max_sectors = 8192, .cmd_per_lun = 2, .use_clustering = ENABLE_CLUSTERING, .slave_alloc = ahd_linux_slave_alloc, .slave_configure = ahd_linux_slave_configure, - .slave_destroy = ahd_linux_slave_destroy, .target_alloc = ahd_linux_target_alloc, .target_destroy = ahd_linux_target_destroy, }; @@ -738,7 +938,7 @@ ahd_dma_tag_create(struct ahd_softc *ahd, bus_dma_tag_t parent, { bus_dma_tag_t dmat; - dmat = malloc(sizeof(*dmat), M_DEVBUF, M_NOWAIT); + dmat = kmalloc(sizeof(*dmat), GFP_ATOMIC); if (dmat == NULL) return (ENOMEM); @@ -759,7 +959,7 @@ ahd_dma_tag_create(struct ahd_softc *ahd, bus_dma_tag_t parent, void ahd_dma_tag_destroy(struct ahd_softc *ahd, bus_dma_tag_t dmat) { - free(dmat, M_DEVBUF); + kfree(dmat); } int @@ -811,71 +1011,18 @@ ahd_dmamap_unload(struct ahd_softc *ahd, bus_dma_tag_t dmat, bus_dmamap_t map) } /********************* Platform Dependent Functions ***************************/ -/* - * Compare "left hand" softc with "right hand" softc, returning: - * < 0 - lahd has a lower priority than rahd - * 0 - Softcs are equal - * > 0 - lahd has a higher priority than rahd - */ -int -ahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd) -{ - int value; - - /* - * Under Linux, cards are ordered as follows: - * 1) PCI devices that are marked as the boot controller. - * 2) PCI devices with BIOS enabled sorted by bus/slot/func. - * 3) All remaining PCI devices sorted by bus/slot/func. - */ -#if 0 - value = (lahd->flags & AHD_BOOT_CHANNEL) - - (rahd->flags & AHD_BOOT_CHANNEL); - if (value != 0) - /* Controllers set for boot have a *higher* priority */ - return (value); -#endif - - value = (lahd->flags & AHD_BIOS_ENABLED) - - (rahd->flags & AHD_BIOS_ENABLED); - if (value != 0) - /* Controllers with BIOS enabled have a *higher* priority */ - return (value); - - /* Still equal. Sort by bus/slot/func. */ - if (aic79xx_reverse_scan != 0) - value = ahd_get_pci_bus(lahd->dev_softc) - - ahd_get_pci_bus(rahd->dev_softc); - else - value = ahd_get_pci_bus(rahd->dev_softc) - - ahd_get_pci_bus(lahd->dev_softc); - if (value != 0) - return (value); - if (aic79xx_reverse_scan != 0) - value = ahd_get_pci_slot(lahd->dev_softc) - - ahd_get_pci_slot(rahd->dev_softc); - else - value = ahd_get_pci_slot(rahd->dev_softc) - - ahd_get_pci_slot(lahd->dev_softc); - if (value != 0) - return (value); - - value = rahd->channel - lahd->channel; - return (value); -} - static void ahd_linux_setup_iocell_info(u_long index, int instance, int targ, int32_t value) { if ((instance >= 0) - && (instance < NUM_ELEMENTS(aic79xx_iocell_info))) { + && (instance < ARRAY_SIZE(aic79xx_iocell_info))) { uint8_t *iocell_info; iocell_info = (uint8_t*)&aic79xx_iocell_info[instance]; iocell_info[index] = value & 0xFFFF; if (bootverbose) - printf("iocell[%d:%ld] = %d\n", instance, index, value); + printk("iocell[%d:%ld] = %d\n", instance, index, value); } } @@ -885,9 +1032,9 @@ ahd_linux_setup_tag_info_global(char *p) int tags, i, j; tags = simple_strtoul(p + 1, NULL, 0) & 0xff; - printf("Setting Global Tags= %d\n", tags); + printk("Setting Global Tags= %d\n", tags); - for (i = 0; i < NUM_ELEMENTS(aic79xx_tag_info); i++) { + for (i = 0; i < ARRAY_SIZE(aic79xx_tag_info); i++) { for (j = 0; j < AHD_NUM_TARGETS; j++) { aic79xx_tag_info[i].tag_commands[j] = tags; } @@ -899,11 +1046,11 @@ ahd_linux_setup_tag_info(u_long arg, int instance, int targ, int32_t value) { if ((instance >= 0) && (targ >= 0) - && (instance < NUM_ELEMENTS(aic79xx_tag_info)) + && (instance < ARRAY_SIZE(aic79xx_tag_info)) && (targ < AHD_NUM_TARGETS)) { aic79xx_tag_info[instance].tag_commands[targ] = value & 0x1FF; if (bootverbose) - printf("tag_info[%d:%d] = %d\n", instance, targ, value); + printk("tag_info[%d:%d] = %d\n", instance, targ, value); } } @@ -944,7 +1091,7 @@ ahd_parse_brace_option(char *opt_name, char *opt_arg, char *end, int depth, if (targ == -1) targ = 0; } else { - printf("Malformed Option %s\n", + printk("Malformed Option %s\n", opt_name); done = TRUE; } @@ -999,7 +1146,7 @@ aic79xx_setup(char *s) char *p; char *end; - static struct { + static const struct { const char *name; uint32_t *flag; } options[] = { @@ -1010,7 +1157,6 @@ aic79xx_setup(char *s) #ifdef AHD_DEBUG { "debug", &ahd_debug }, #endif - { "reverse_scan", &aic79xx_reverse_scan }, { "periodic_otag", &aic79xx_periodic_otag }, { "pci_parity", &aic79xx_pci_parity }, { "seltime", &aic79xx_seltime }, @@ -1025,21 +1171,21 @@ aic79xx_setup(char *s) end = strchr(s, '\0'); /* - * XXX ia64 gcc isn't smart enough to know that NUM_ELEMENTS + * XXX ia64 gcc isn't smart enough to know that ARRAY_SIZE * will never be 0 in this case. - */ - n = 0; + */ + n = 0; while ((p = strsep(&s, ",.")) != NULL) { if (*p == '\0') continue; - for (i = 0; i < NUM_ELEMENTS(options); i++) { + for (i = 0; i < ARRAY_SIZE(options); i++) { n = strlen(options[i].name); if (strncmp(options[i].name, p, n) == 0) break; } - if (i == NUM_ELEMENTS(options)) + if (i == ARRAY_SIZE(options)) continue; if (strncmp(p, "global_tag_depth", n) == 0) { @@ -1103,7 +1249,7 @@ ahd_linux_register_host(struct ahd_softc *ahd, struct scsi_host_template *templa ahd_set_unit(ahd, ahd_linux_unit++); ahd_unlock(ahd, &s); sprintf(buf, "scsi%d", host->host_no); - new_name = malloc(strlen(buf) + 1, M_DEVBUF, M_NOWAIT); + new_name = kmalloc(strlen(buf) + 1, GFP_ATOMIC); if (new_name != NULL) { strcpy(new_name, buf); ahd_set_name(ahd, new_name); @@ -1125,15 +1271,6 @@ ahd_linux_register_host(struct ahd_softc *ahd, struct scsi_host_template *templa return 0; } -uint64_t -ahd_linux_get_memsize(void) -{ - struct sysinfo si; - - si_meminfo(&si); - return ((uint64_t)si.totalram << PAGE_SHIFT); -} - /* * Place the SCSI bus into a known state by either resetting it, * or forcing transfer negotiations on the next command to any @@ -1188,13 +1325,12 @@ int ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg) { ahd->platform_data = - malloc(sizeof(struct ahd_platform_data), M_DEVBUF, M_NOWAIT); + kmalloc(sizeof(struct ahd_platform_data), GFP_ATOMIC); if (ahd->platform_data == NULL) return (ENOMEM); memset(ahd->platform_data, 0, sizeof(struct ahd_platform_data)); ahd->platform_data->irq = AHD_LINUX_NOIRQ; ahd_lockinit(ahd); - init_MUTEX_LOCKED(&ahd->platform_data->eh_sem); ahd->seltime = (aic79xx_seltime & 0x3) << 4; return (0); } @@ -1203,20 +1339,13 @@ void ahd_platform_free(struct ahd_softc *ahd) { struct scsi_target *starget; - int i, j; + int i; if (ahd->platform_data != NULL) { /* destroy all of the device and target objects */ for (i = 0; i < AHD_NUM_TARGETS; i++) { starget = ahd->platform_data->starget[i]; if (starget != NULL) { - for (j = 0; j < AHD_NUM_LUNS; j++) { - struct ahd_linux_target *targ = - scsi_transport_target_data(starget); - if (targ->sdev[j] == NULL) - continue; - targ->sdev[j] = NULL; - } ahd->platform_data->starget[i] = NULL; } } @@ -1238,7 +1367,7 @@ ahd_platform_free(struct ahd_softc *ahd) if (ahd->platform_data->host) scsi_host_put(ahd->platform_data->host); - free(ahd->platform_data, M_DEVBUF); + kfree(ahd->platform_data); } } @@ -1248,8 +1377,8 @@ ahd_platform_init(struct ahd_softc *ahd) /* * Lookup and commit any modified IO Cell options. */ - if (ahd->unit < NUM_ELEMENTS(aic79xx_iocell_info)) { - struct ahd_linux_iocell_opts *iocell_opts; + if (ahd->unit < ARRAY_SIZE(aic79xx_iocell_info)) { + const struct ahd_linux_iocell_opts *iocell_opts; iocell_opts = &aic79xx_iocell_info[ahd->unit]; if (iocell_opts->precomp != AIC79XX_DEFAULT_PRECOMP) @@ -1272,20 +1401,13 @@ ahd_platform_freeze_devq(struct ahd_softc *ahd, struct scb *scb) } void -ahd_platform_set_tags(struct ahd_softc *ahd, struct ahd_devinfo *devinfo, - ahd_queue_alg alg) +ahd_platform_set_tags(struct ahd_softc *ahd, struct scsi_device *sdev, + struct ahd_devinfo *devinfo, ahd_queue_alg alg) { - struct scsi_target *starget; - struct ahd_linux_target *targ; struct ahd_linux_device *dev; - struct scsi_device *sdev; int was_queuing; int now_queuing; - starget = ahd->platform_data->starget[devinfo->target]; - targ = scsi_transport_target_data(starget); - BUG_ON(targ == NULL); - sdev = targ->sdev[devinfo->lun]; if (sdev == NULL) return; @@ -1320,7 +1442,7 @@ ahd_platform_set_tags(struct ahd_softc *ahd, struct ahd_devinfo *devinfo, usertags = ahd_linux_user_tagdepth(ahd, devinfo); if (!was_queuing) { /* - * Start out agressively and allow our + * Start out aggressively and allow our * dynamic queue depth algorithm to take * care of the rest. */ @@ -1346,14 +1468,12 @@ ahd_platform_set_tags(struct ahd_softc *ahd, struct ahd_devinfo *devinfo, switch ((dev->flags & (AHD_DEV_Q_BASIC|AHD_DEV_Q_TAGGED))) { case AHD_DEV_Q_BASIC: - scsi_adjust_queue_depth(sdev, - MSG_SIMPLE_TASK, - dev->openings + dev->active); + scsi_set_tag_type(sdev, MSG_SIMPLE_TASK); + scsi_activate_tcq(sdev, dev->openings + dev->active); break; case AHD_DEV_Q_TAGGED: - scsi_adjust_queue_depth(sdev, - MSG_ORDERED_TASK, - dev->openings + dev->active); + scsi_set_tag_type(sdev, MSG_ORDERED_TASK); + scsi_activate_tcq(sdev, dev->openings + dev->active); break; default: /* @@ -1362,9 +1482,7 @@ ahd_platform_set_tags(struct ahd_softc *ahd, struct ahd_devinfo *devinfo, * serially on the controller/device. This should * remove some latency. */ - scsi_adjust_queue_depth(sdev, - /*NON-TAGGED*/0, - /*queue depth*/2); + scsi_deactivate_tcq(sdev, 1); break; } } @@ -1384,10 +1502,10 @@ ahd_linux_user_tagdepth(struct ahd_softc *ahd, struct ahd_devinfo *devinfo) tags = 0; if ((ahd->user_discenable & devinfo->target_mask) != 0) { - if (ahd->unit >= NUM_ELEMENTS(aic79xx_tag_info)) { + if (ahd->unit >= ARRAY_SIZE(aic79xx_tag_info)) { if (warned_user == 0) { - printf(KERN_WARNING + printk(KERN_WARNING "aic79xx: WARNING: Insufficient tag_info instances\n" "aic79xx: for installed controllers. Using defaults\n" "aic79xx: Please update the aic79xx_tag_info array in\n" @@ -1425,11 +1543,15 @@ ahd_linux_device_queue_depth(struct scsi_device *sdev) tags = ahd_linux_user_tagdepth(ahd, &devinfo); if (tags != 0 && sdev->tagged_supported != 0) { - ahd_set_tags(ahd, &devinfo, AHD_QUEUE_TAGGED); + ahd_platform_set_tags(ahd, sdev, &devinfo, AHD_QUEUE_TAGGED); + ahd_send_async(ahd, devinfo.channel, devinfo.target, + devinfo.lun, AC_TRANSFER_NEG); ahd_print_devinfo(ahd, &devinfo); - printf("Tagged Queuing enabled. Depth %d\n", tags); + printk("Tagged Queuing enabled. Depth %d\n", tags); } else { - ahd_set_tags(ahd, &devinfo, AHD_QUEUE_NONE); + ahd_platform_set_tags(ahd, sdev, &devinfo, AHD_QUEUE_NONE); + ahd_send_async(ahd, devinfo.channel, devinfo.target, + devinfo.lun, AC_TRANSFER_NEG); } } @@ -1443,6 +1565,14 @@ ahd_linux_run_command(struct ahd_softc *ahd, struct ahd_linux_device *dev, struct ahd_tmode_tstate *tstate; u_int col_idx; uint16_t mask; + unsigned long flags; + int nseg; + + nseg = scsi_dma_map(cmd); + if (nseg < 0) + return SCSI_MLQUEUE_HOST_BUSY; + + ahd_lock(ahd, &flags); /* * Get an scb to use. @@ -1458,6 +1588,8 @@ ahd_linux_run_command(struct ahd_softc *ahd, struct ahd_linux_device *dev, } if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) { ahd->flags |= AHD_RESOURCE_SHORTAGE; + ahd_unlock(ahd, &flags); + scsi_dma_unmap(cmd); return SCSI_MLQUEUE_HOST_BUSY; } @@ -1484,30 +1616,6 @@ ahd_linux_run_command(struct ahd_softc *ahd, struct ahd_linux_device *dev, if ((tstate->auto_negotiate & mask) != 0) { scb->flags |= SCB_AUTO_NEGOTIATE; scb->hscb->control |= MK_MESSAGE; - } else if (cmd->cmnd[0] == INQUIRY - && (tinfo->curr.offset != 0 - || tinfo->curr.width != MSG_EXT_WDTR_BUS_8_BIT - || tinfo->curr.ppr_options != 0) - && (tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ)==0) { - /* - * The SCSI spec requires inquiry - * commands to complete without - * reporting unit attention conditions. - * Because of this, an inquiry command - * that occurs just after a device is - * reset will result in a data phase - * with mismatched negotiated rates. - * The core already forces a renegotiation - * for reset events that are visible to - * our controller or that we initiate, - * but a third party device reset or a - * hot-plug insertion can still cause this - * issue. Therefore, we force a re-negotiation - * for every inquiry command unless we - * are async. - */ - scb->flags |= SCB_NEGOTIATE; - scb->hscb->control |= MK_MESSAGE; } if ((dev->flags & (AHD_DEV_Q_TAGGED|AHD_DEV_Q_BASIC)) != 0) { @@ -1536,18 +1644,15 @@ ahd_linux_run_command(struct ahd_softc *ahd, struct ahd_linux_device *dev, ahd_set_residual(scb, 0); ahd_set_sense_residual(scb, 0); scb->sg_count = 0; - if (cmd->use_sg != 0) { - void *sg; - struct scatterlist *cur_seg; - u_int nseg; - int dir; - - cur_seg = (struct scatterlist *)cmd->request_buffer; - dir = cmd->sc_data_direction; - nseg = pci_map_sg(ahd->dev_softc, cur_seg, - cmd->use_sg, dir); + + if (nseg > 0) { + void *sg = scb->sg_list; + struct scatterlist *cur_seg; + int i; + scb->platform_data->xfer_len = 0; - for (sg = scb->sg_list; nseg > 0; nseg--, cur_seg++) { + + scsi_for_each_sg(cmd, cur_seg, nseg, i) { dma_addr_t addr; bus_size_t len; @@ -1555,22 +1660,8 @@ ahd_linux_run_command(struct ahd_softc *ahd, struct ahd_linux_device *dev, len = sg_dma_len(cur_seg); scb->platform_data->xfer_len += len; sg = ahd_sg_setup(ahd, scb, sg, addr, len, - /*last*/nseg == 1); + i == (nseg - 1)); } - } else if (cmd->request_bufflen != 0) { - void *sg; - dma_addr_t addr; - int dir; - - sg = scb->sg_list; - dir = cmd->sc_data_direction; - addr = pci_map_single(ahd->dev_softc, - cmd->request_buffer, - cmd->request_bufflen, dir); - scb->platform_data->xfer_len = cmd->request_bufflen; - scb->platform_data->buf_busaddr = addr; - sg = ahd_sg_setup(ahd, scb, sg, addr, - cmd->request_bufflen, /*last*/TRUE); } LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links); @@ -1583,6 +1674,8 @@ ahd_linux_run_command(struct ahd_softc *ahd, struct ahd_linux_device *dev, scb->flags |= SCB_ACTIVE; ahd_queue_scb(ahd, scb); + ahd_unlock(ahd, &flags); + return 0; } @@ -1590,7 +1683,7 @@ ahd_linux_run_command(struct ahd_softc *ahd, struct ahd_linux_device *dev, * SCSI controller interrupt handler. */ irqreturn_t -ahd_linux_isr(int irq, void *dev_id, struct pt_regs * regs) +ahd_linux_isr(int irq, void *dev_id) { struct ahd_softc *ahd; u_long flags; @@ -1604,32 +1697,19 @@ ahd_linux_isr(int irq, void *dev_id, struct pt_regs * regs) } void -ahd_platform_flushwork(struct ahd_softc *ahd) -{ - -} - -void ahd_send_async(struct ahd_softc *ahd, char channel, - u_int target, u_int lun, ac_code code, void *arg) + u_int target, u_int lun, ac_code code) { switch (code) { case AC_TRANSFER_NEG: { - char buf[80]; struct scsi_target *starget; - struct ahd_linux_target *targ; - struct info_str info; struct ahd_initiator_tinfo *tinfo; struct ahd_tmode_tstate *tstate; unsigned int target_ppr_options; BUG_ON(target == CAM_TARGET_WILDCARD); - info.buffer = buf; - info.length = sizeof(buf); - info.offset = 0; - info.pos = 0; tinfo = ahd_fetch_transinfo(ahd, channel, ahd->our_id, target, &tstate); @@ -1651,7 +1731,6 @@ ahd_send_async(struct ahd_softc *ahd, char channel, starget = ahd->platform_data->starget[target]; if (starget == NULL) break; - targ = scsi_transport_target_data(starget); target_ppr_options = (spi_dt(starget) ? MSG_EXT_PPR_DT_REQ : 0) @@ -1712,7 +1791,7 @@ ahd_done(struct ahd_softc *ahd, struct scb *scb) struct ahd_linux_device *dev; if ((scb->flags & SCB_ACTIVE) == 0) { - printf("SCB %d done'd twice\n", SCB_GET_TAG(scb)); + printk("SCB %d done'd twice\n", SCB_GET_TAG(scb)); ahd_dump_card_state(ahd); panic("Stopping for safety"); } @@ -1743,7 +1822,7 @@ ahd_done(struct ahd_softc *ahd, struct scb *scb) #ifdef AHD_DEBUG if ((ahd_debug & AHD_SHOW_MISC) != 0) { ahd_print_path(ahd, scb); - printf("Set CAM_UNCOR_PARITY\n"); + printk("Set CAM_UNCOR_PARITY\n"); } #endif ahd_set_transaction_status(scb, CAM_UNCOR_PARITY); @@ -1761,12 +1840,12 @@ ahd_done(struct ahd_softc *ahd, struct scb *scb) u_int i; ahd_print_path(ahd, scb); - printf("CDB:"); + printk("CDB:"); for (i = 0; i < scb->io_ctx->cmd_len; i++) - printf(" 0x%x", scb->io_ctx->cmnd[i]); - printf("\n"); + printk(" 0x%x", scb->io_ctx->cmnd[i]); + printk("\n"); ahd_print_path(ahd, scb); - printf("Saw underflow (%ld of %ld bytes). " + printk("Saw underflow (%ld of %ld bytes). " "Treated as error\n", ahd_get_residual(scb), ahd_get_transfer_length(scb)); @@ -1799,14 +1878,13 @@ ahd_done(struct ahd_softc *ahd, struct scb *scb) dev->commands_since_idle_or_otag = 0; if ((scb->flags & SCB_RECOVERY_SCB) != 0) { - printf("Recovery SCB completes\n"); + printk("Recovery SCB completes\n"); if (ahd_get_transaction_status(scb) == CAM_BDR_SENT || ahd_get_transaction_status(scb) == CAM_REQ_ABORTED) ahd_set_transaction_status(scb, CAM_CMD_TIMEOUT); - if ((ahd->platform_data->flags & AHD_SCB_UP_EH_SEM) != 0) { - ahd->platform_data->flags &= ~AHD_SCB_UP_EH_SEM; - up(&ahd->platform_data->eh_sem); - } + + if (ahd->platform_data->eh_done) + complete(ahd->platform_data->eh_done); } ahd_free_scb(ahd, scb); @@ -1855,9 +1933,9 @@ ahd_linux_handle_scsi_status(struct ahd_softc *ahd, u_int sense_offset; if (scb->flags & SCB_SENSE) { - sense_size = MIN(sizeof(struct scsi_sense_data) + sense_size = min(sizeof(struct scsi_sense_data) - ahd_get_sense_residual(scb), - sizeof(cmd->sense_buffer)); + (u_long)SCSI_SENSE_BUFFERSIZE); sense_offset = 0; } else { /* @@ -1866,12 +1944,13 @@ ahd_linux_handle_scsi_status(struct ahd_softc *ahd, */ siu = (struct scsi_status_iu_header *) scb->sense_data; - sense_size = MIN(scsi_4btoul(siu->sense_length), - sizeof(cmd->sense_buffer)); + sense_size = min_t(size_t, + scsi_4btoul(siu->sense_length), + SCSI_SENSE_BUFFERSIZE); sense_offset = SIU_SENSE_OFFSET(siu); } - memset(cmd->sense_buffer, 0, sizeof(cmd->sense_buffer)); + memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); memcpy(cmd->sense_buffer, ahd_get_sense_buf(ahd, scb) + sense_offset, sense_size); @@ -1881,14 +1960,14 @@ ahd_linux_handle_scsi_status(struct ahd_softc *ahd, if (ahd_debug & AHD_SHOW_SENSE) { int i; - printf("Copied %d bytes of sense data at %d:", + printk("Copied %d bytes of sense data at %d:", sense_size, sense_offset); for (i = 0; i < sense_size; i++) { if ((i & 0xF) == 0) - printf("\n"); - printf("0x%x ", cmd->sense_buffer[i]); + printk("\n"); + printk("0x%x ", cmd->sense_buffer[i]); } - printf("\n"); + printk("\n"); } #endif } @@ -1913,7 +1992,7 @@ ahd_linux_handle_scsi_status(struct ahd_softc *ahd, #ifdef AHD_DEBUG if ((ahd_debug & AHD_SHOW_QFULL) != 0) { ahd_print_path(ahd, scb); - printf("Dropping tag count to %d\n", + printk("Dropping tag count to %d\n", dev->active); } #endif @@ -1932,7 +2011,7 @@ ahd_linux_handle_scsi_status(struct ahd_softc *ahd, == AHD_LOCK_TAGS_COUNT) { dev->maxtags = dev->active; ahd_print_path(ahd, scb); - printf("Locking max tag count at %d\n", + printk("Locking max tag count at %d\n", dev->active); } } else { @@ -1941,7 +2020,7 @@ ahd_linux_handle_scsi_status(struct ahd_softc *ahd, } ahd_set_transaction_status(scb, CAM_REQUEUE_REQ); ahd_set_scsi_status(scb, SCSI_STATUS_OK); - ahd_platform_set_tags(ahd, &devinfo, + ahd_platform_set_tags(ahd, sdev, &devinfo, (dev->flags & AHD_DEV_Q_BASIC) ? AHD_QUEUE_BASIC : AHD_QUEUE_TAGGED); break; @@ -1951,7 +2030,7 @@ ahd_linux_handle_scsi_status(struct ahd_softc *ahd, * as if the target returned BUSY SCSI status. */ dev->openings = 1; - ahd_platform_set_tags(ahd, &devinfo, + ahd_platform_set_tags(ahd, sdev, &devinfo, (dev->flags & AHD_DEV_Q_BASIC) ? AHD_QUEUE_BASIC : AHD_QUEUE_TAGGED); ahd_set_scsi_status(scb, SCSI_STATUS_BUSY); @@ -1961,133 +2040,125 @@ ahd_linux_handle_scsi_status(struct ahd_softc *ahd, static void ahd_linux_queue_cmd_complete(struct ahd_softc *ahd, struct scsi_cmnd *cmd) { + int status; + int new_status = DID_OK; + int do_fallback = 0; + int scsi_status; + /* * Map CAM error codes into Linux Error codes. We * avoid the conversion so that the DV code has the * full error information available when making * state change decisions. */ - { - uint32_t status; - u_int new_status; - - status = ahd_cmd_get_transaction_status(cmd); - switch (status) { - case CAM_REQ_INPROG: - case CAM_REQ_CMP: - case CAM_SCSI_STATUS_ERROR: - new_status = DID_OK; - break; - case CAM_REQ_ABORTED: - new_status = DID_ABORT; - break; - case CAM_BUSY: - new_status = DID_BUS_BUSY; - break; - case CAM_REQ_INVALID: - case CAM_PATH_INVALID: - new_status = DID_BAD_TARGET; - break; - case CAM_SEL_TIMEOUT: - new_status = DID_NO_CONNECT; - break; - case CAM_SCSI_BUS_RESET: - case CAM_BDR_SENT: - new_status = DID_RESET; - break; - case CAM_UNCOR_PARITY: - new_status = DID_PARITY; - break; - case CAM_CMD_TIMEOUT: - new_status = DID_TIME_OUT; - break; - case CAM_UA_ABORT: - case CAM_REQ_CMP_ERR: - case CAM_AUTOSENSE_FAIL: - case CAM_NO_HBA: - case CAM_DATA_RUN_ERR: - case CAM_UNEXP_BUSFREE: - case CAM_SEQUENCE_FAIL: - case CAM_CCB_LEN_ERR: - case CAM_PROVIDE_FAIL: - case CAM_REQ_TERMIO: - case CAM_UNREC_HBA_ERROR: - case CAM_REQ_TOO_BIG: - new_status = DID_ERROR; - break; - case CAM_REQUEUE_REQ: - new_status = DID_REQUEUE; + + status = ahd_cmd_get_transaction_status(cmd); + switch (status) { + case CAM_REQ_INPROG: + case CAM_REQ_CMP: + new_status = DID_OK; + break; + case CAM_AUTOSENSE_FAIL: + new_status = DID_ERROR; + /* Fallthrough */ + case CAM_SCSI_STATUS_ERROR: + scsi_status = ahd_cmd_get_scsi_status(cmd); + + switch(scsi_status) { + case SCSI_STATUS_CMD_TERMINATED: + case SCSI_STATUS_CHECK_COND: + if ((cmd->result >> 24) != DRIVER_SENSE) { + do_fallback = 1; + } else { + struct scsi_sense_data *sense; + + sense = (struct scsi_sense_data *) + cmd->sense_buffer; + if (sense->extra_len >= 5 && + (sense->add_sense_code == 0x47 + || sense->add_sense_code == 0x48)) + do_fallback = 1; + } break; default: - /* We should never get here */ - new_status = DID_ERROR; break; } + break; + case CAM_REQ_ABORTED: + new_status = DID_ABORT; + break; + case CAM_BUSY: + new_status = DID_BUS_BUSY; + break; + case CAM_REQ_INVALID: + case CAM_PATH_INVALID: + new_status = DID_BAD_TARGET; + break; + case CAM_SEL_TIMEOUT: + new_status = DID_NO_CONNECT; + break; + case CAM_SCSI_BUS_RESET: + case CAM_BDR_SENT: + new_status = DID_RESET; + break; + case CAM_UNCOR_PARITY: + new_status = DID_PARITY; + do_fallback = 1; + break; + case CAM_CMD_TIMEOUT: + new_status = DID_TIME_OUT; + do_fallback = 1; + break; + case CAM_REQ_CMP_ERR: + case CAM_UNEXP_BUSFREE: + case CAM_DATA_RUN_ERR: + new_status = DID_ERROR; + do_fallback = 1; + break; + case CAM_UA_ABORT: + case CAM_NO_HBA: + case CAM_SEQUENCE_FAIL: + case CAM_CCB_LEN_ERR: + case CAM_PROVIDE_FAIL: + case CAM_REQ_TERMIO: + case CAM_UNREC_HBA_ERROR: + case CAM_REQ_TOO_BIG: + new_status = DID_ERROR; + break; + case CAM_REQUEUE_REQ: + new_status = DID_REQUEUE; + break; + default: + /* We should never get here */ + new_status = DID_ERROR; + break; + } - ahd_cmd_set_transaction_status(cmd, new_status); + if (do_fallback) { + printk("%s: device overrun (status %x) on %d:%d:%d\n", + ahd_name(ahd), status, cmd->device->channel, + cmd->device->id, cmd->device->lun); } + ahd_cmd_set_transaction_status(cmd, new_status); + cmd->scsi_done(cmd); } static void -ahd_linux_sem_timeout(u_long arg) -{ - struct ahd_softc *ahd; - u_long s; - - ahd = (struct ahd_softc *)arg; - - ahd_lock(ahd, &s); - if ((ahd->platform_data->flags & AHD_SCB_UP_EH_SEM) != 0) { - ahd->platform_data->flags &= ~AHD_SCB_UP_EH_SEM; - up(&ahd->platform_data->eh_sem); - } - ahd_unlock(ahd, &s); -} - -void ahd_freeze_simq(struct ahd_softc *ahd) { - unsigned long s; - - ahd_lock(ahd, &s); - ahd->platform_data->qfrozen++; - if (ahd->platform_data->qfrozen == 1) { - scsi_block_requests(ahd->platform_data->host); - ahd_platform_abort_scbs(ahd, CAM_TARGET_WILDCARD, ALL_CHANNELS, - CAM_LUN_WILDCARD, SCB_LIST_NULL, - ROLE_INITIATOR, CAM_REQUEUE_REQ); - } - ahd_unlock(ahd, &s); + scsi_block_requests(ahd->platform_data->host); } -void +static void ahd_release_simq(struct ahd_softc *ahd) { - u_long s; - int unblock_reqs; - - unblock_reqs = 0; - ahd_lock(ahd, &s); - if (ahd->platform_data->qfrozen > 0) - ahd->platform_data->qfrozen--; - if (ahd->platform_data->qfrozen == 0) { - unblock_reqs = 1; - } - ahd_unlock(ahd, &s); - /* - * There is still a race here. The mid-layer - * should keep its own freeze count and use - * a bottom half handler to run the queues - * so we can unblock with our own lock held. - */ - if (unblock_reqs) - scsi_unblock_requests(ahd->platform_data->host); + scsi_unblock_requests(ahd->platform_data->host); } static int -ahd_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag) +ahd_linux_queue_abort_cmd(struct scsi_cmnd *cmd) { struct ahd_softc *ahd; struct ahd_linux_device *dev; @@ -2102,7 +2173,6 @@ ahd_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag) int paused; int wait; int disconnected; - int found; ahd_mode_state saved_modes; unsigned long flags; @@ -2112,13 +2182,12 @@ ahd_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag) ahd = *(struct ahd_softc **)cmd->device->host->hostdata; scmd_printk(KERN_INFO, cmd, - "Attempting to queue a%s message:", - flag == SCB_ABORT ? "n ABORT" : " TARGET RESET"); + "Attempting to queue an ABORT message:"); - printf("CDB:"); + printk("CDB:"); for (cdb_byte = 0; cdb_byte < cmd->cmd_len; cdb_byte++) - printf(" 0x%x", cmd->cmnd[cdb_byte]); - printf("\n"); + printk(" 0x%x", cmd->cmnd[cdb_byte]); + printk("\n"); ahd_lock(ahd, &flags); @@ -2149,19 +2218,6 @@ ahd_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag) break; } - if (pending_scb == NULL && flag == SCB_DEVICE_RESET) { - - /* Any SCB for this device will do for a target reset */ - LIST_FOREACH(pending_scb, &ahd->pending_scbs, pending_links) { - if (ahd_match_scb(ahd, pending_scb, - scmd_id(cmd), - scmd_channel(cmd) + 'A', - CAM_LUN_WILDCARD, - SCB_LIST_NULL, ROLE_INITIATOR)) - break; - } - } - if (pending_scb == NULL) { scmd_printk(KERN_INFO, cmd, "Command not found\n"); goto no_cmd; @@ -2190,30 +2246,22 @@ ahd_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag) goto no_cmd; } - printf("%s: At time of recovery, card was %spaused\n", + printk("%s: At time of recovery, card was %spaused\n", ahd_name(ahd), was_paused ? "" : "not "); ahd_dump_card_state(ahd); disconnected = TRUE; - if (flag == SCB_ABORT) { - if (ahd_search_qinfifo(ahd, cmd->device->id, - cmd->device->channel + 'A', - cmd->device->lun, - pending_scb->hscb->tag, - ROLE_INITIATOR, CAM_REQ_ABORTED, - SEARCH_COMPLETE) > 0) { - printf("%s:%d:%d:%d: Cmd aborted from QINFIFO\n", - ahd_name(ahd), cmd->device->channel, - cmd->device->id, cmd->device->lun); - retval = SUCCESS; - goto done; - } - } else if (ahd_search_qinfifo(ahd, cmd->device->id, - cmd->device->channel + 'A', - cmd->device->lun, pending_scb->hscb->tag, - ROLE_INITIATOR, /*status*/0, - SEARCH_COUNT) > 0) { - disconnected = FALSE; + if (ahd_search_qinfifo(ahd, cmd->device->id, + cmd->device->channel + 'A', + cmd->device->lun, + pending_scb->hscb->tag, + ROLE_INITIATOR, CAM_REQ_ABORTED, + SEARCH_COMPLETE) > 0) { + printk("%s:%d:%d:%d: Cmd aborted from QINFIFO\n", + ahd_name(ahd), cmd->device->channel, + cmd->device->id, cmd->device->lun); + retval = SUCCESS; + goto done; } saved_modes = ahd_save_modes(ahd); @@ -2221,17 +2269,12 @@ ahd_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag) last_phase = ahd_inb(ahd, LASTPHASE); saved_scbptr = ahd_get_scbptr(ahd); active_scbptr = saved_scbptr; - if (disconnected && ((last_phase != P_BUSFREE) || - (ahd_inb(ahd, SEQ_FLAGS) & NOT_IDENTIFIED) == 0)) { + if (disconnected && (ahd_inb(ahd, SEQ_FLAGS) & NOT_IDENTIFIED) == 0) { struct scb *bus_scb; bus_scb = ahd_lookup_scb(ahd, active_scbptr); if (bus_scb == pending_scb) disconnected = FALSE; - else if (flag != SCB_ABORT - && ahd_inb(ahd, SAVED_SCSIID) == pending_scb->hscb->scsiid - && ahd_inb(ahd, SAVED_LUN) == SCB_GET_LUN(pending_scb)) - disconnected = FALSE; } /* @@ -2240,41 +2283,26 @@ ahd_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag) * bus or is in the disconnected state. */ saved_scsiid = ahd_inb(ahd, SAVED_SCSIID); - if (SCB_GET_TAG(pending_scb) == active_scbptr - || (flag == SCB_DEVICE_RESET - && SCSIID_TARGET(ahd, saved_scsiid) == scmd_id(cmd))) { + if (last_phase != P_BUSFREE + && SCB_GET_TAG(pending_scb) == active_scbptr) { /* * We're active on the bus, so assert ATN * and hope that the target responds. */ pending_scb = ahd_lookup_scb(ahd, active_scbptr); - pending_scb->flags |= SCB_RECOVERY_SCB|SCB_DEVICE_RESET; + pending_scb->flags |= SCB_RECOVERY_SCB|SCB_ABORT; ahd_outb(ahd, MSG_OUT, HOST_MSG); ahd_outb(ahd, SCSISIGO, last_phase|ATNO); - scmd_printk(KERN_INFO, cmd, "BDR message in message buffer\n"); + scmd_printk(KERN_INFO, cmd, "Device is active, asserting ATN\n"); wait = TRUE; - } else if (last_phase != P_BUSFREE - && ahd_inb(ahd, SCSIPHASE) == 0) { - /* - * SCB is not identified, there - * is no pending REQ, and the sequencer - * has not seen a busfree. Looks like - * a stuck connection waiting to - * go busfree. Reset the bus. - */ - found = ahd_reset_channel(ahd, cmd->device->channel + 'A', - /*Initiate Reset*/TRUE); - printf("%s: Issued Channel %c Bus Reset. " - "%d SCBs aborted\n", ahd_name(ahd), - cmd->device->channel + 'A', found); } else if (disconnected) { /* * Actually re-queue this SCB in an attempt * to select the device before it reconnects. */ - pending_scb->flags |= SCB_RECOVERY_SCB|flag; + pending_scb->flags |= SCB_RECOVERY_SCB|SCB_ABORT; ahd_set_scbptr(ahd, SCB_GET_TAG(pending_scb)); pending_scb->hscb->cdb_len = 0; pending_scb->hscb->task_attribute = 0; @@ -2305,7 +2333,7 @@ ahd_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag) /* * The sequencer will never re-reference the * in-core SCB. To make sure we are notified - * during reslection, set the MK_MESSAGE flag in + * during reselection, set the MK_MESSAGE flag in * the card's copy of the SCB. */ ahd_outb(ahd, SCB_CONTROL, @@ -2324,7 +2352,7 @@ ahd_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag) ahd_qinfifo_requeue_tail(ahd, pending_scb); ahd_set_scbptr(ahd, saved_scbptr); ahd_print_path(ahd, pending_scb); - printf("Device is disconnected, re-queuing SCB\n"); + printk("Device is disconnected, re-queuing SCB\n"); wait = TRUE; } else { scmd_printk(KERN_INFO, cmd, "Unable to deliver message\n"); @@ -2344,30 +2372,29 @@ done: if (paused) ahd_unpause(ahd); if (wait) { - struct timer_list timer; - int ret; + DECLARE_COMPLETION_ONSTACK(done); - ahd->platform_data->flags |= AHD_SCB_UP_EH_SEM; + ahd->platform_data->eh_done = &done; ahd_unlock(ahd, &flags); - init_timer(&timer); - timer.data = (u_long)ahd; - timer.expires = jiffies + (5 * HZ); - timer.function = ahd_linux_sem_timeout; - add_timer(&timer); - printf("%s: Recovery code sleeping\n", ahd_name(ahd)); - down(&ahd->platform_data->eh_sem); - printf("%s: Recovery code awake\n", ahd_name(ahd)); - ret = del_timer_sync(&timer); - if (ret == 0) { - printf("%s: Timer Expired (active %d)\n", + printk("%s: Recovery code sleeping\n", ahd_name(ahd)); + if (!wait_for_completion_timeout(&done, 5 * HZ)) { + ahd_lock(ahd, &flags); + ahd->platform_data->eh_done = NULL; + ahd_unlock(ahd, &flags); + printk("%s: Timer Expired (active %d)\n", ahd_name(ahd), dev->active); retval = FAILED; } + printk("Recovery code awake\n"); } else ahd_unlock(ahd, &flags); - return (retval); + if (retval != SUCCESS) + printk("%s: Command abort returning 0x%x\n", + ahd_name(ahd), retval); + + return retval; } static void ahd_linux_set_width(struct scsi_target *starget, int width) @@ -2401,7 +2428,7 @@ static void ahd_linux_set_period(struct scsi_target *starget, int period) #ifdef AHD_DEBUG if ((ahd_debug & AHD_SHOW_DV) != 0) - printf("%s: set period to %d\n", ahd_name(ahd), period); + printk("%s: set period to %d\n", ahd_name(ahd), period); #endif if (offset == 0) offset = MAX_OFFSET; @@ -2409,9 +2436,12 @@ static void ahd_linux_set_period(struct scsi_target *starget, int period) if (period < 8) period = 8; if (period < 10) { - ppr_options |= MSG_EXT_PPR_DT_REQ; - if (period == 8) - ppr_options |= MSG_EXT_PPR_IU_REQ; + if (spi_max_width(starget)) { + ppr_options |= MSG_EXT_PPR_DT_REQ; + if (period == 8) + ppr_options |= MSG_EXT_PPR_IU_REQ; + } else + period = 10; } dt = ppr_options & MSG_EXT_PPR_DT_REQ; @@ -2451,7 +2481,7 @@ static void ahd_linux_set_offset(struct scsi_target *starget, int offset) #ifdef AHD_DEBUG if ((ahd_debug & AHD_SHOW_DV) != 0) - printf("%s: set offset to %d\n", ahd_name(ahd), offset); + printk("%s: set offset to %d\n", ahd_name(ahd), offset); #endif ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, @@ -2487,10 +2517,10 @@ static void ahd_linux_set_dt(struct scsi_target *starget, int dt) #ifdef AHD_DEBUG if ((ahd_debug & AHD_SHOW_DV) != 0) - printf("%s: %s DT\n", ahd_name(ahd), + printk("%s: %s DT\n", ahd_name(ahd), dt ? "enabling" : "disabling"); #endif - if (dt) { + if (dt && spi_max_width(starget)) { ppr_options |= MSG_EXT_PPR_DT_REQ; if (!width) ahd_linux_set_width(starget, 1); @@ -2529,7 +2559,7 @@ static void ahd_linux_set_qas(struct scsi_target *starget, int qas) #ifdef AHD_DEBUG if ((ahd_debug & AHD_SHOW_DV) != 0) - printf("%s: %s QAS\n", ahd_name(ahd), + printk("%s: %s QAS\n", ahd_name(ahd), qas ? "enabling" : "disabling"); #endif @@ -2568,11 +2598,11 @@ static void ahd_linux_set_iu(struct scsi_target *starget, int iu) #ifdef AHD_DEBUG if ((ahd_debug & AHD_SHOW_DV) != 0) - printf("%s: %s IU\n", ahd_name(ahd), + printk("%s: %s IU\n", ahd_name(ahd), iu ? "enabling" : "disabling"); #endif - if (iu) { + if (iu && spi_max_width(starget)) { ppr_options |= MSG_EXT_PPR_IU_REQ; ppr_options |= MSG_EXT_PPR_DT_REQ; /* IU requires DT */ } @@ -2608,11 +2638,11 @@ static void ahd_linux_set_rd_strm(struct scsi_target *starget, int rdstrm) #ifdef AHD_DEBUG if ((ahd_debug & AHD_SHOW_DV) != 0) - printf("%s: %s Read Streaming\n", ahd_name(ahd), + printk("%s: %s Read Streaming\n", ahd_name(ahd), rdstrm ? "enabling" : "disabling"); #endif - if (rdstrm) + if (rdstrm && spi_max_width(starget)) ppr_options |= MSG_EXT_PPR_RD_STRM; ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, @@ -2644,11 +2674,11 @@ static void ahd_linux_set_wr_flow(struct scsi_target *starget, int wrflow) #ifdef AHD_DEBUG if ((ahd_debug & AHD_SHOW_DV) != 0) - printf("%s: %s Write Flow Control\n", ahd_name(ahd), + printk("%s: %s Write Flow Control\n", ahd_name(ahd), wrflow ? "enabling" : "disabling"); #endif - if (wrflow) + if (wrflow && spi_max_width(starget)) ppr_options |= MSG_EXT_PPR_WR_FLOW; ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, @@ -2681,18 +2711,18 @@ static void ahd_linux_set_rti(struct scsi_target *starget, int rti) if ((ahd->features & AHD_RTI) == 0) { #ifdef AHD_DEBUG if ((ahd_debug & AHD_SHOW_DV) != 0) - printf("%s: RTI not available\n", ahd_name(ahd)); + printk("%s: RTI not available\n", ahd_name(ahd)); #endif return; } #ifdef AHD_DEBUG if ((ahd_debug & AHD_SHOW_DV) != 0) - printf("%s: %s RTI\n", ahd_name(ahd), + printk("%s: %s RTI\n", ahd_name(ahd), rti ? "enabling" : "disabling"); #endif - if (rti) + if (rti && spi_max_width(starget)) ppr_options |= MSG_EXT_PPR_RTI; ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, @@ -2724,12 +2754,26 @@ static void ahd_linux_set_pcomp_en(struct scsi_target *starget, int pcomp) #ifdef AHD_DEBUG if ((ahd_debug & AHD_SHOW_DV) != 0) - printf("%s: %s Precompensation\n", ahd_name(ahd), + printk("%s: %s Precompensation\n", ahd_name(ahd), pcomp ? "Enable" : "Disable"); #endif - if (pcomp) + if (pcomp && spi_max_width(starget)) { + uint8_t precomp; + + if (ahd->unit < ARRAY_SIZE(aic79xx_iocell_info)) { + const struct ahd_linux_iocell_opts *iocell_opts; + + iocell_opts = &aic79xx_iocell_info[ahd->unit]; + precomp = iocell_opts->precomp; + } else { + precomp = AIC79XX_DEFAULT_PRECOMP; + } ppr_options |= MSG_EXT_PPR_PCOMP_EN; + AHD_SET_PRECOMP(ahd, precomp); + } else { + AHD_SET_PRECOMP(ahd, 0); + } ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, starget->channel + 'A', ROLE_INITIATOR); @@ -2758,7 +2802,7 @@ static void ahd_linux_set_hold_mcs(struct scsi_target *starget, int hold) unsigned int dt = ppr_options & MSG_EXT_PPR_DT_REQ; unsigned long flags; - if (hold) + if (hold && spi_max_width(starget)) ppr_options |= MSG_EXT_PPR_HOLD_MCS; ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, @@ -2772,7 +2816,25 @@ static void ahd_linux_set_hold_mcs(struct scsi_target *starget, int hold) ahd_unlock(ahd, &flags); } +static void ahd_linux_get_signalling(struct Scsi_Host *shost) +{ + struct ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata; + unsigned long flags; + u8 mode; + + ahd_lock(ahd, &flags); + ahd_pause(ahd); + mode = ahd_inb(ahd, SBLKCTL); + ahd_unpause(ahd); + ahd_unlock(ahd, &flags); + if (mode & ENAB40) + spi_signalling(shost) = SPI_SIGNAL_LVD; + else if (mode & ENAB20) + spi_signalling(shost) = SPI_SIGNAL_SE; + else + spi_signalling(shost) = SPI_SIGNAL_UNKNOWN; +} static struct spi_function_template ahd_linux_transport_functions = { .set_offset = ahd_linux_set_offset, @@ -2797,6 +2859,7 @@ static struct spi_function_template ahd_linux_transport_functions = { .show_pcomp_en = 1, .set_hold_mcs = ahd_linux_set_hold_mcs, .show_hold_mcs = 1, + .get_signalling = ahd_linux_get_signalling, }; static int __init @@ -2815,8 +2878,6 @@ ahd_linux_init(void) if (!ahd_linux_transport_template) return -ENODEV; - scsi_transport_reserve_target(ahd_linux_transport_template, - sizeof(struct ahd_linux_target)); scsi_transport_reserve_device(ahd_linux_transport_template, sizeof(struct ahd_linux_device)); |