diff options
Diffstat (limited to 'drivers/scsi/aic7xxx')
| -rw-r--r-- | drivers/scsi/aic7xxx/aic7770.c | 9 | ||||
| -rw-r--r-- | drivers/scsi/aic7xxx/aic7xxx.h | 7 | ||||
| -rw-r--r-- | drivers/scsi/aic7xxx/aic7xxx_core.c | 59 | ||||
| -rw-r--r-- | drivers/scsi/aic7xxx/aic7xxx_osm.c | 152 | ||||
| -rw-r--r-- | drivers/scsi/aic7xxx/aic7xxx_osm.h | 28 | ||||
| -rw-r--r-- | drivers/scsi/aic7xxx/aic7xxx_osm_pci.c | 4 | ||||
| -rw-r--r-- | drivers/scsi/aic7xxx/aic7xxx_pci.c | 8 |
7 files changed, 6 insertions, 261 deletions
diff --git a/drivers/scsi/aic7xxx/aic7770.c b/drivers/scsi/aic7xxx/aic7770.c index 92703bb3598..00f3bd1e181 100644 --- a/drivers/scsi/aic7xxx/aic7770.c +++ b/drivers/scsi/aic7xxx/aic7770.c @@ -254,19 +254,12 @@ aic7770_config(struct ahc_softc *ahc, struct aic7770_identity *entry, u_int io) if (error != 0) return (error); - ahc_list_lock(&l); - /* - * Link this softc in with all other ahc instances. - */ - ahc_softc_insert(ahc); + ahc->init_level++; /* * Enable the board's BUS drivers */ ahc_outb(ahc, BCTL, ENABLE); - - ahc_list_unlock(&l); - return (0); } diff --git a/drivers/scsi/aic7xxx/aic7xxx.h b/drivers/scsi/aic7xxx/aic7xxx.h index 0948d50ae75..088cbc23743 100644 --- a/drivers/scsi/aic7xxx/aic7xxx.h +++ b/drivers/scsi/aic7xxx/aic7xxx.h @@ -1023,9 +1023,6 @@ struct ahc_softc { struct cs *critical_sections; u_int num_critical_sections; - /* Links for chaining softcs */ - TAILQ_ENTRY(ahc_softc) links; - /* Channel Names ('A', 'B', etc.) */ char channel; char channel_b; @@ -1110,9 +1107,6 @@ struct ahc_softc { uint16_t user_tagenable;/* Tagged Queuing allowed */ }; -TAILQ_HEAD(ahc_softc_tailq, ahc_softc); -extern struct ahc_softc_tailq ahc_tailq; - /************************ Active Device Information ***************************/ typedef enum { ROLE_UNKNOWN, @@ -1198,7 +1192,6 @@ void ahc_intr_enable(struct ahc_softc *ahc, int enable); void ahc_pause_and_flushwork(struct ahc_softc *ahc); int ahc_suspend(struct ahc_softc *ahc); int ahc_resume(struct ahc_softc *ahc); -void ahc_softc_insert(struct ahc_softc *); void ahc_set_unit(struct ahc_softc *, int); void ahc_set_name(struct ahc_softc *, char *); void ahc_alloc_scbs(struct ahc_softc *ahc); diff --git a/drivers/scsi/aic7xxx/aic7xxx_core.c b/drivers/scsi/aic7xxx/aic7xxx_core.c index 8a2bb6f8d77..7bc01e41bcc 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_core.c +++ b/drivers/scsi/aic7xxx/aic7xxx_core.c @@ -52,9 +52,6 @@ #include <dev/aic7xxx/aicasm/aicasm_insformat.h> #endif -/****************************** Softc Data ************************************/ -struct ahc_softc_tailq ahc_tailq = TAILQ_HEAD_INITIALIZER(ahc_tailq); - /***************************** Lookup Tables **********************************/ char *ahc_chip_names[] = { @@ -3879,62 +3876,6 @@ ahc_softc_init(struct ahc_softc *ahc) } void -ahc_softc_insert(struct ahc_softc *ahc) -{ - struct ahc_softc *list_ahc; - -#if AHC_PCI_CONFIG > 0 - /* - * Second Function PCI devices need to inherit some - * settings from function 0. - */ - if ((ahc->chip & AHC_BUS_MASK) == AHC_PCI - && (ahc->features & AHC_MULTI_FUNC) != 0) { - TAILQ_FOREACH(list_ahc, &ahc_tailq, links) { - ahc_dev_softc_t list_pci; - ahc_dev_softc_t pci; - - list_pci = list_ahc->dev_softc; - pci = ahc->dev_softc; - if (ahc_get_pci_slot(list_pci) == ahc_get_pci_slot(pci) - && ahc_get_pci_bus(list_pci) == ahc_get_pci_bus(pci)) { - struct ahc_softc *master; - struct ahc_softc *slave; - - if (ahc_get_pci_function(list_pci) == 0) { - master = list_ahc; - slave = ahc; - } else { - master = ahc; - slave = list_ahc; - } - slave->flags &= ~AHC_BIOS_ENABLED; - slave->flags |= - master->flags & AHC_BIOS_ENABLED; - slave->flags &= ~AHC_PRIMARY_CHANNEL; - slave->flags |= - master->flags & AHC_PRIMARY_CHANNEL; - break; - } - } - } -#endif - - /* - * Insertion sort into our list of softcs. - */ - list_ahc = TAILQ_FIRST(&ahc_tailq); - while (list_ahc != NULL - && ahc_softc_comp(ahc, list_ahc) <= 0) - list_ahc = TAILQ_NEXT(list_ahc, links); - if (list_ahc != NULL) - TAILQ_INSERT_BEFORE(list_ahc, ahc, links); - else - TAILQ_INSERT_TAIL(&ahc_tailq, ahc, links); - ahc->init_level++; -} - -void ahc_set_unit(struct ahc_softc *ahc, int unit) { ahc->unit = unit; diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c index f94a67be0be..116d0f51ca2 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c @@ -136,10 +136,6 @@ static struct scsi_transport_template *ahc_linux_transport_template = NULL; #include <linux/blkdev.h> /* For block_size() */ #include <linux/delay.h> /* For ssleep/msleep */ -/* - * Lock protecting manipulation of the ahc softc list. - */ -spinlock_t ahc_list_spinlock; /* * Set this to the delay in seconds after SCSI bus reset. @@ -292,25 +288,6 @@ ahc_print_path(struct ahc_softc *ahc, struct scb *scb) static uint32_t aic7xxx_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 aic7xxx_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 @@ -416,7 +393,9 @@ static int ahc_linux_run_command(struct ahc_softc*, static void ahc_linux_setup_tag_info_global(char *p); static aic_option_callback_t ahc_linux_setup_tag_info; static int aic7xxx_setup(char *s); -static int ahc_linux_next_unit(void); + +static int ahc_linux_unit; + /********************************* Inlines ************************************/ static __inline void ahc_linux_unmap_scb(struct ahc_softc*, struct scb*); @@ -911,99 +890,6 @@ ahc_dmamap_unload(struct ahc_softc *ahc, bus_dma_tag_t dmat, bus_dmamap_t map) return (0); } -/********************* Platform Dependent Functions ***************************/ -/* - * Compare "left hand" softc with "right hand" softc, returning: - * < 0 - lahc has a lower priority than rahc - * 0 - Softcs are equal - * > 0 - lahc has a higher priority than rahc - */ -int -ahc_softc_comp(struct ahc_softc *lahc, struct ahc_softc *rahc) -{ - int value; - int rvalue; - int lvalue; - - /* - * Under Linux, cards are ordered as follows: - * 1) VLB/EISA BIOS enabled devices sorted by BIOS address. - * 2) PCI devices with BIOS enabled sorted by bus/slot/func. - * 3) All remaining VLB/EISA devices sorted by ioport. - * 4) All remaining PCI devices sorted by bus/slot/func. - */ - value = (lahc->flags & AHC_BIOS_ENABLED) - - (rahc->flags & AHC_BIOS_ENABLED); - if (value != 0) - /* Controllers with BIOS enabled have a *higher* priority */ - return (value); - - /* - * Same BIOS setting, now sort based on bus type. - * EISA and VL controllers sort together. EISA/VL - * have higher priority than PCI. - */ - rvalue = (rahc->chip & AHC_BUS_MASK); - if (rvalue == AHC_VL) - rvalue = AHC_EISA; - lvalue = (lahc->chip & AHC_BUS_MASK); - if (lvalue == AHC_VL) - lvalue = AHC_EISA; - value = rvalue - lvalue; - if (value != 0) - return (value); - - /* Still equal. Sort by BIOS address, ioport, or bus/slot/func. */ - switch (rvalue) { -#ifdef CONFIG_PCI - case AHC_PCI: - { - char primary_channel; - - if (aic7xxx_reverse_scan != 0) - value = ahc_get_pci_bus(lahc->dev_softc) - - ahc_get_pci_bus(rahc->dev_softc); - else - value = ahc_get_pci_bus(rahc->dev_softc) - - ahc_get_pci_bus(lahc->dev_softc); - if (value != 0) - break; - if (aic7xxx_reverse_scan != 0) - value = ahc_get_pci_slot(lahc->dev_softc) - - ahc_get_pci_slot(rahc->dev_softc); - else - value = ahc_get_pci_slot(rahc->dev_softc) - - ahc_get_pci_slot(lahc->dev_softc); - if (value != 0) - break; - /* - * On multi-function devices, the user can choose - * to have function 1 probed before function 0. - * Give whichever channel is the primary channel - * the highest priority. - */ - primary_channel = (lahc->flags & AHC_PRIMARY_CHANNEL) + 'A'; - value = -1; - if (lahc->channel == primary_channel) - value = 1; - break; - } -#endif - case AHC_EISA: - if ((rahc->flags & AHC_BIOS_ENABLED) != 0) { - value = rahc->platform_data->bios_address - - lahc->platform_data->bios_address; - } else { - value = rahc->bsh.ioport - - lahc->bsh.ioport; - } - break; - default: - panic("ahc_softc_sort: invalid bus type"); - } - return (value); -} - static void ahc_linux_setup_tag_info_global(char *p) { @@ -1055,7 +941,6 @@ aic7xxx_setup(char *s) #ifdef AHC_DEBUG { "debug", &ahc_debug }, #endif - { "reverse_scan", &aic7xxx_reverse_scan }, { "periodic_otag", &aic7xxx_periodic_otag }, { "pci_parity", &aic7xxx_pci_parity }, { "seltime", &aic7xxx_seltime }, @@ -1130,7 +1015,7 @@ ahc_linux_register_host(struct ahc_softc *ahc, struct scsi_host_template *templa host->max_lun = AHC_NUM_LUNS; host->max_channel = (ahc->features & AHC_TWIN) ? 1 : 0; host->sg_tablesize = AHC_NSEG; - ahc_set_unit(ahc, ahc_linux_next_unit()); + ahc_set_unit(ahc, ahc_linux_unit++); sprintf(buf, "scsi%d", host->host_no); new_name = malloc(strlen(buf) + 1, M_DEVBUF, M_NOWAIT); if (new_name != NULL) { @@ -1159,29 +1044,6 @@ ahc_linux_get_memsize(void) } /* - * Find the smallest available unit number to use - * for a new device. We don't just use a static - * count to handle the "repeated hot-(un)plug" - * scenario. - */ -static int -ahc_linux_next_unit(void) -{ - struct ahc_softc *ahc; - int unit; - - unit = 0; -retry: - TAILQ_FOREACH(ahc, &ahc_tailq, links) { - if (ahc->unit == unit) { - unit++; - goto retry; - } - } - return (unit); -} - -/* * Place the SCSI bus into a known state by either resetting it, * or forcing transfer negotiations on the next command to any * target. @@ -2685,12 +2547,6 @@ ahc_linux_init(void) scsi_transport_reserve_device(ahc_linux_transport_template, sizeof(struct ahc_linux_device)); - /* - * Initialize our softc list lock prior to - * probing for any adapters. - */ - ahc_list_lockinit(); - ahc_linux_pci_init(); ahc_linux_eisa_init(); return 0; diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.h b/drivers/scsi/aic7xxx/aic7xxx_osm.h index 5c0c9f9725b..0e47ac21754 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.h +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.h @@ -509,15 +509,6 @@ void ahc_format_transinfo(struct info_str *info, /******************************** Locking *************************************/ /* Lock protecting internal data structures */ -static __inline void ahc_lockinit(struct ahc_softc *); -static __inline void ahc_lock(struct ahc_softc *, unsigned long *flags); -static __inline void ahc_unlock(struct ahc_softc *, unsigned long *flags); - -/* Lock held during ahc_list manipulation and ahc softc frees */ -extern spinlock_t ahc_list_spinlock; -static __inline void ahc_list_lockinit(void); -static __inline void ahc_list_lock(unsigned long *flags); -static __inline void ahc_list_unlock(unsigned long *flags); static __inline void ahc_lockinit(struct ahc_softc *ahc) @@ -537,24 +528,6 @@ ahc_unlock(struct ahc_softc *ahc, unsigned long *flags) spin_unlock_irqrestore(&ahc->platform_data->spin_lock, *flags); } -static __inline void -ahc_list_lockinit(void) -{ - spin_lock_init(&ahc_list_spinlock); -} - -static __inline void -ahc_list_lock(unsigned long *flags) -{ - spin_lock_irqsave(&ahc_list_spinlock, *flags); -} - -static __inline void -ahc_list_unlock(unsigned long *flags) -{ - spin_unlock_irqrestore(&ahc_list_spinlock, *flags); -} - /******************************* PCI Definitions ******************************/ /* * PCIM_xxx: mask to locate subfield in register @@ -891,7 +864,6 @@ int ahc_platform_abort_scbs(struct ahc_softc *ahc, int target, irqreturn_t ahc_linux_isr(int irq, void *dev_id, struct pt_regs * regs); void ahc_platform_flushwork(struct ahc_softc *ahc); -int ahc_softc_comp(struct ahc_softc *, struct ahc_softc *); void ahc_done(struct ahc_softc*, struct scb*); void ahc_send_async(struct ahc_softc *, char channel, u_int target, u_int lun, ac_code, void *); diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c b/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c index 45ad438c994..9d318ce2c99 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c @@ -143,10 +143,6 @@ ahc_linux_pci_dev_remove(struct pci_dev *pdev) struct ahc_softc *ahc = pci_get_drvdata(pdev); u_long s; - ahc_list_lock(&s); - TAILQ_REMOVE(&ahc_tailq, ahc, links); - ahc_list_unlock(&s); - ahc_lock(ahc, &s); ahc_intr_enable(ahc, FALSE); ahc_unlock(ahc, &s); diff --git a/drivers/scsi/aic7xxx/aic7xxx_pci.c b/drivers/scsi/aic7xxx/aic7xxx_pci.c index 7ddcc97fb24..b3b2e2237eb 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_pci.c +++ b/drivers/scsi/aic7xxx/aic7xxx_pci.c @@ -704,7 +704,6 @@ ahc_find_pci_device(ahc_dev_softc_t pci) int ahc_pci_config(struct ahc_softc *ahc, struct ahc_pci_identity *entry) { - u_long l; u_int command; u_int our_id; u_int sxfrctl1; @@ -964,12 +963,7 @@ ahc_pci_config(struct ahc_softc *ahc, struct ahc_pci_identity *entry) if (error != 0) return (error); - ahc_list_lock(&l); - /* - * Link this softc in with all other ahc instances. - */ - ahc_softc_insert(ahc); - ahc_list_unlock(&l); + ahc->init_level++; return (0); } |