vserver 1.9.5.x5
[linux-2.6.git] / drivers / scsi / aic7xxx / aic7xxx_osm.c
index ecbc05d..031c6aa 100644 (file)
  */
 #include "aiclib.c"
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0)
 #include <linux/init.h>                /* __setup */
-#endif
-
 
 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
 #include "sd.h"                        /* For geometry detection */
@@ -152,14 +149,6 @@ spinlock_t ahc_list_spinlock;
 u_int ahc_linux_nseg;
 #endif
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0)
-struct proc_dir_entry proc_scsi_aic7xxx = {
-       PROC_SCSI_AIC7XXX, 7, "aic7xxx",
-       S_IFDIR | S_IRUGO | S_IXUGO, 2,
-       0, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL
-};
-#endif
-
 /*
  * Set this to the delay in seconds after SCSI bus reset.
  * Note, we honor this only for the initial bus reset.
@@ -438,18 +427,12 @@ uint32_t aic7xxx_periodic_otag;
  * Module information and settable options.
  */
 static char *aic7xxx = NULL;
-/*
- * Just in case someone uses commas to separate items on the insmod
- * command line, we define a dummy buffer here to avoid having insmod
- * write wild stuff into our code segment
- */
-static char dummy_buffer[60] = "Please don't trounce on me insmod!!\n";
 
 MODULE_AUTHOR("Maintainer: Justin T. Gibbs <gibbs@scsiguy.com>");
 MODULE_DESCRIPTION("Adaptec Aic77XX/78XX SCSI Host Bus Adapter driver");
 MODULE_LICENSE("Dual BSD/GPL");
 MODULE_VERSION(AIC7XXX_DRIVER_VERSION);
-MODULE_PARM(aic7xxx, "s");
+module_param(aic7xxx, charp, 0444);
 MODULE_PARM_DESC(aic7xxx,
 "period delimited, options string.\n"
 "      verbose                 Enable verbose/diagnostic logging\n"
@@ -572,7 +555,7 @@ static __inline void ahc_linux_unmap_scb(struct ahc_softc*, struct scb*);
 
 static __inline int ahc_linux_map_seg(struct ahc_softc *ahc, struct scb *scb,
                                      struct ahc_dma_seg *sg,
-                                     bus_addr_t addr, bus_size_t len);
+                                     dma_addr_t addr, bus_size_t len);
 
 static __inline void
 ahc_schedule_completeq(struct ahc_softc *ahc)
@@ -590,14 +573,7 @@ ahc_schedule_completeq(struct ahc_softc *ahc)
 static __inline void
 ahc_schedule_runq(struct ahc_softc *ahc)
 {
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
        tasklet_schedule(&ahc->platform_data->runq_tasklet);
-#else
-       /*
-        * Tasklets are not available, so run inline.
-        */
-       ahc_runq_tasklet((unsigned long)ahc);
-#endif
 }
 
 static __inline struct ahc_linux_device*
@@ -728,7 +704,7 @@ ahc_linux_unmap_scb(struct ahc_softc *ahc, struct scb *scb)
 
 static __inline int
 ahc_linux_map_seg(struct ahc_softc *ahc, struct scb *scb,
-                 struct ahc_dma_seg *sg, bus_addr_t addr, bus_size_t len)
+                 struct ahc_dma_seg *sg, dma_addr_t addr, bus_size_t len)
 {
        int      consumed;
 
@@ -740,7 +716,7 @@ ahc_linux_map_seg(struct ahc_softc *ahc, struct scb *scb,
        sg->addr = ahc_htole32(addr & 0xFFFFFFFF);
        scb->platform_data->xfer_len += len;
 
-       if (sizeof(bus_addr_t) > 4
+       if (sizeof(dma_addr_t) > 4
         && (ahc->flags & AHC_39BIT_ADDRESSING) != 0)
                len |= (addr >> 8) & AHC_SG_HIGH_ADDR_MASK;
 
@@ -863,25 +839,13 @@ ahc_linux_detect(Scsi_Host_Template *template)
                return (0);
        }
        ahc_linux_size_nseg();
-#ifdef MODULE
        /*
         * If we've been passed any parameters, process them now.
         */
        if (aic7xxx)
                aic7xxx_setup(aic7xxx);
-       if (dummy_buffer[0] != 'P')
-               printk(KERN_WARNING
-"aic7xxx: Please read the file /usr/src/linux/drivers/scsi/README.aic7xxx\n"
-"aic7xxx: to see the proper way to specify options to the aic7xxx module\n"
-"aic7xxx: Specifically, don't use any commas when passing arguments to\n"
-"aic7xxx: insmod or else it might trash certain memory areas.\n");
-#endif
 
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,3,0)
        template->proc_name = "aic7xxx";
-#else
-       template->proc_dir = &proc_scsi_aic7xxx;
-#endif
 
        /*
         * Initialize our softc list lock prior to
@@ -1323,28 +1287,20 @@ ahc_runq_tasklet(unsigned long data)
 {
        struct ahc_softc* ahc;
        struct ahc_linux_device *dev;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
        u_long flags;
-#endif
 
        ahc = (struct ahc_softc *)data;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
        ahc_lock(ahc, &flags);
-#endif
        while ((dev = ahc_linux_next_device_to_run(ahc)) != NULL) {
        
                TAILQ_REMOVE(&ahc->platform_data->device_runq, dev, links);
                dev->flags &= ~AHC_DEV_ON_RUN_LIST;
                ahc_linux_check_device_queue(ahc, dev);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
                /* Yeild to our interrupt handler */
                ahc_unlock(ahc, &flags);
                ahc_lock(ahc, &flags);
-#endif
        }
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
        ahc_unlock(ahc, &flags);
-#endif
 }
 
 /******************************** Macros **************************************/
@@ -1357,7 +1313,7 @@ ahc_runq_tasklet(unsigned long data)
 int
 ahc_dma_tag_create(struct ahc_softc *ahc, bus_dma_tag_t parent,
                   bus_size_t alignment, bus_size_t boundary,
-                  bus_addr_t lowaddr, bus_addr_t highaddr,
+                  dma_addr_t lowaddr, dma_addr_t highaddr,
                   bus_dma_filter_t *filter, void *filterarg,
                   bus_size_t maxsize, int nsegments,
                   bus_size_t maxsegsz, int flags, bus_dma_tag_t *ret_tag)
@@ -1394,7 +1350,6 @@ ahc_dmamem_alloc(struct ahc_softc *ahc, bus_dma_tag_t dmat, void** vaddr,
 {
        bus_dmamap_t map;
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0)
        map = malloc(sizeof(*map), M_DEVBUF, M_NOWAIT);
        if (map == NULL)
                return (ENOMEM);
@@ -1406,28 +1361,20 @@ ahc_dmamem_alloc(struct ahc_softc *ahc, bus_dma_tag_t dmat, void** vaddr,
         * our dma mask when doing allocations.
         */
        if (ahc->dev_softc != NULL)
-               if (ahc_pci_set_dma_mask(ahc->dev_softc, 0xFFFFFFFF)) {
+               if (pci_set_dma_mask(ahc->dev_softc, 0xFFFFFFFF)) {
                        printk(KERN_WARNING "aic7xxx: No suitable DMA available.\n");
+                       kfree(map);
                        return (ENODEV);
                }
        *vaddr = pci_alloc_consistent(ahc->dev_softc,
                                      dmat->maxsize, &map->bus_addr);
        if (ahc->dev_softc != NULL)
-               if (ahc_pci_set_dma_mask(ahc->dev_softc,
+               if (pci_set_dma_mask(ahc->dev_softc,
                                     ahc->platform_data->hw_dma_mask)) {
                        printk(KERN_WARNING "aic7xxx: No suitable DMA available.\n");
+                       kfree(map);
                        return (ENODEV);
                }
-#else /* LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0) */
-       /*
-        * At least in 2.2.14, malloc is a slab allocator so all
-        * allocations are aligned.  We assume for these kernel versions
-        * that all allocations will be bellow 4Gig, physically contiguous,
-        * and accessible via DMA by the controller.
-        */
-       map = NULL; /* No additional information to store */
-       *vaddr = malloc(dmat->maxsize, M_DEVBUF, M_NOWAIT);
-#endif
        if (*vaddr == NULL)
                return (ENOMEM);
        *mapp = map;
@@ -1438,12 +1385,8 @@ void
 ahc_dmamem_free(struct ahc_softc *ahc, bus_dma_tag_t dmat,
                void* vaddr, bus_dmamap_t map)
 {
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0)
        pci_free_consistent(ahc->dev_softc, dmat->maxsize,
                            vaddr, map->bus_addr);
-#else
-       free(vaddr, M_DEVBUF);
-#endif
 }
 
 int
@@ -1457,12 +1400,7 @@ ahc_dmamap_load(struct ahc_softc *ahc, bus_dma_tag_t dmat, bus_dmamap_t map,
         */
        bus_dma_segment_t stack_sg;
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0)
        stack_sg.ds_addr = map->bus_addr;
-#else
-#define VIRT_TO_BUS(a) (uint32_t)virt_to_bus((void *)(a))
-       stack_sg.ds_addr = VIRT_TO_BUS(buf);
-#endif
        stack_sg.ds_len = dmat->maxsize;
        cb(cb_arg, &stack_sg, /*nseg*/1, /*error*/0);
        return (0);
@@ -1473,9 +1411,10 @@ ahc_dmamap_destroy(struct ahc_softc *ahc, bus_dma_tag_t dmat, bus_dmamap_t map)
 {
        /*
         * The map may is NULL in our < 2.3.X implementation.
+        * Now it's 2.6.5, but just in case...
         */
-       if (map != NULL)
-               free(map, M_DEVBUF);
+       BUG_ON(map == NULL);
+       free(map, M_DEVBUF);
 }
 
 int
@@ -1691,9 +1630,7 @@ aic7xxx_setup(char *s)
        return 1;
 }
 
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,3,0)
 __setup("aic7xxx=", aic7xxx_setup);
-#endif
 
 uint32_t aic7xxx_verbose;
 
@@ -1736,8 +1673,7 @@ ahc_linux_register_host(struct ahc_softc *ahc, Scsi_Host_Template *template)
                ahc_set_name(ahc, new_name);
        }
        host->unique_id = ahc->unit;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,4) && \
-    LINUX_VERSION_CODE  < KERNEL_VERSION(2,5,0)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
        scsi_set_pci_device(host, ahc->dev_softc);
 #endif
        ahc_linux_initialize_scsi_bus(ahc);
@@ -1923,19 +1859,11 @@ ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg)
        ahc->platform_data->completeq_timer.data = (u_long)ahc;
        ahc->platform_data->completeq_timer.function =
            (ahc_linux_callback_t *)ahc_linux_thread_run_complete_queue;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0)
        init_MUTEX_LOCKED(&ahc->platform_data->eh_sem);
        init_MUTEX_LOCKED(&ahc->platform_data->dv_sem);
        init_MUTEX_LOCKED(&ahc->platform_data->dv_cmd_sem);
-#else
-       ahc->platform_data->eh_sem = MUTEX_LOCKED;
-       ahc->platform_data->dv_sem = MUTEX_LOCKED;
-       ahc->platform_data->dv_cmd_sem = MUTEX_LOCKED;
-#endif
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
        tasklet_init(&ahc->platform_data->runq_tasklet, ahc_runq_tasklet,
                     (unsigned long)ahc);
-#endif
        ahc->seltime = (aic7xxx_seltime & 0x3) << 4;
        ahc->seltime_b = (aic7xxx_seltime & 0x3) << 4;
        if (aic7xxx_pci_parity == 0)
@@ -1954,9 +1882,7 @@ ahc_platform_free(struct ahc_softc *ahc)
        if (ahc->platform_data != NULL) {
                del_timer_sync(&ahc->platform_data->completeq_timer);
                ahc_linux_kill_dv_thread(ahc);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
                tasklet_kill(&ahc->platform_data->runq_tasklet);
-#endif
                if (ahc->platform_data->host != NULL) {
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
                        scsi_remove_host(ahc->platform_data->host);
@@ -1992,18 +1918,11 @@ ahc_platform_free(struct ahc_softc *ahc)
                        release_region(ahc->bsh.ioport, 256);
                if (ahc->tag == BUS_SPACE_MEMIO
                 && ahc->bsh.maddr != NULL) {
-                       u_long base_addr;
-
-                       base_addr = (u_long)ahc->bsh.maddr;
-                       base_addr &= PAGE_MASK;
-                       iounmap((void *)base_addr);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
+                       iounmap(ahc->bsh.maddr);
                        release_mem_region(ahc->platform_data->mem_busaddr,
                                           0x1000);
-#endif
                }
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0) && \
-    LINUX_VERSION_CODE  < KERNEL_VERSION(2,5,0)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
                /*
                 * In 2.4 we detach from the scsi midlayer before the PCI
                 * layer invokes our remove callback.  No per-instance
@@ -3749,7 +3668,7 @@ ahc_linux_run_device_queue(struct ahc_softc *ahc, struct ahc_linux_device *dev)
                         * a transfer crosses a 32bit page.
                         */ 
                        while (cur_seg < end_seg) {
-                               bus_addr_t addr;
+                               dma_addr_t addr;
                                bus_size_t len;
                                int consumed;
 
@@ -3778,7 +3697,7 @@ ahc_linux_run_device_queue(struct ahc_softc *ahc, struct ahc_linux_device *dev)
                        scb->hscb->datacnt = scb->sg_list->len;
                } else if (cmd->request_bufflen != 0) {
                        struct   ahc_dma_seg *sg;
-                       bus_addr_t addr;
+                       dma_addr_t addr;
 
                        sg = scb->sg_list;
                        addr = pci_map_single(ahc->dev_softc,
@@ -4062,7 +3981,7 @@ ahc_send_async(struct ahc_softc *ahc, char channel,
                WARN_ON(lun != CAM_LUN_WILDCARD);
                scsi_report_device_reset(ahc->platform_data->host,
                                         channel - 'A', target);
-#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0)
+#else
                Scsi_Device *scsi_dev;
 
                /*
@@ -4083,12 +4002,10 @@ ahc_send_async(struct ahc_softc *ahc, char channel,
                break;
        }
         case AC_BUS_RESET:
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,3,0)
                if (ahc->platform_data->host != NULL) {
                        scsi_report_bus_reset(ahc->platform_data->host,
                                              channel - 'A');
                }
-#endif
                 break;
         default:
                 panic("ahc_send_async: Unexpected async event");
@@ -5098,7 +5015,6 @@ static void
 ahc_linux_exit(void)
 {
        struct ahc_softc *ahc;
-       u_long l;
 
        /*
         * Shutdown DV threads before going into the SCSI mid-layer.
@@ -5106,12 +5022,10 @@ ahc_linux_exit(void)
         * kernel so that waiting for our DV threads to exit leads
         * to deadlock.
         */
-       ahc_list_lock(&l);
        TAILQ_FOREACH(ahc, &ahc_tailq, links) {
 
                ahc_linux_kill_dv_thread(ahc);
        }
-       ahc_list_unlock(&l);
 
 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
        /*