| /* |
| * Linux OS Independent Layer |
| * |
| * Copyright (C) 1999-2016, Broadcom Corporation |
| * |
| * Unless you and Broadcom execute a separate written software license |
| * agreement governing use of this software, this software is licensed to you |
| * under the terms of the GNU General Public License version 2 (the "GPL"), |
| * available at http://www.broadcom.com/licenses/GPLv2.php, with the |
| * following added to such license: |
| * |
| * As a special exception, the copyright holders of this software give you |
| * permission to link this software with independent modules, and to copy and |
| * distribute the resulting executable under terms of your choice, provided that |
| * you also meet, for each linked independent module, the terms and conditions of |
| * the license of that module. An independent module is a module which is not |
| * derived from this software. The special exception does not apply to any |
| * modifications of the software. |
| * |
| * Notwithstanding the above, under no circumstances may you combine this |
| * software in any way with any other Broadcom software provided under a license |
| * other than the GPL, without Broadcom's express prior written consent. |
| * |
| * $Id: linux_osl.c 658506 2016-09-08 06:44:19Z $ |
| */ |
| |
| #define LINUX_PORT |
| |
| #include <typedefs.h> |
| #include <bcmendian.h> |
| #include <linuxver.h> |
| #include <bcmdefs.h> |
| |
| #ifdef __ARM_ARCH_7A__ |
| #include <asm/cacheflush.h> |
| #endif /* __ARM_ARCH_7A__ */ |
| |
| #include <osl.h> |
| #include <bcmutils.h> |
| #include <linux/delay.h> |
| #include <pcicfg.h> |
| |
| |
| |
| #include <linux/fs.h> |
| |
| #define PCI_CFG_RETRY 10 |
| |
| #define OS_HANDLE_MAGIC 0x1234abcd /* Magic # to recognize osh */ |
| #define BCM_MEM_FILENAME_LEN 24 /* Mem. filename length */ |
| #define DUMPBUFSZ 1024 |
| |
| #ifdef CONFIG_DHD_USE_STATIC_BUF |
| #define DHD_SKB_HDRSIZE 336 |
| #define DHD_SKB_1PAGE_BUFSIZE ((PAGE_SIZE*1)-DHD_SKB_HDRSIZE) |
| #define DHD_SKB_2PAGE_BUFSIZE ((PAGE_SIZE*2)-DHD_SKB_HDRSIZE) |
| #define DHD_SKB_4PAGE_BUFSIZE ((PAGE_SIZE*4)-DHD_SKB_HDRSIZE) |
| |
| #define STATIC_BUF_MAX_NUM 16 |
| #define STATIC_BUF_SIZE (PAGE_SIZE*2) |
| #define STATIC_BUF_TOTAL_LEN (STATIC_BUF_MAX_NUM * STATIC_BUF_SIZE) |
| |
| typedef struct bcm_static_buf { |
| spinlock_t static_lock; |
| unsigned char *buf_ptr; |
| unsigned char buf_use[STATIC_BUF_MAX_NUM]; |
| } bcm_static_buf_t; |
| |
| static bcm_static_buf_t *bcm_static_buf = 0; |
| |
| #define STATIC_PKT_MAX_NUM 8 |
| #if defined(ENHANCED_STATIC_BUF) |
| #define STATIC_PKT_4PAGE_NUM 1 |
| #define DHD_SKB_MAX_BUFSIZE DHD_SKB_4PAGE_BUFSIZE |
| #else |
| #define STATIC_PKT_4PAGE_NUM 0 |
| #define DHD_SKB_MAX_BUFSIZE DHD_SKB_2PAGE_BUFSIZE |
| #endif /* ENHANCED_STATIC_BUF */ |
| |
| typedef struct bcm_static_pkt { |
| struct sk_buff *skb_4k[STATIC_PKT_MAX_NUM]; |
| struct sk_buff *skb_8k[STATIC_PKT_MAX_NUM]; |
| #ifdef ENHANCED_STATIC_BUF |
| struct sk_buff *skb_16k; |
| #endif |
| struct semaphore osl_pkt_sem; |
| unsigned char pkt_use[STATIC_PKT_MAX_NUM * 2 + STATIC_PKT_4PAGE_NUM]; |
| } bcm_static_pkt_t; |
| |
| static bcm_static_pkt_t *bcm_static_skb = 0; |
| |
| void* wifi_platform_prealloc(void *adapter, int section, unsigned long size); |
| #endif /* CONFIG_DHD_USE_STATIC_BUF */ |
| |
| typedef struct bcm_mem_link { |
| struct bcm_mem_link *prev; |
| struct bcm_mem_link *next; |
| uint size; |
| int line; |
| void *osh; |
| char file[BCM_MEM_FILENAME_LEN]; |
| } bcm_mem_link_t; |
| |
| struct osl_cmn_info { |
| atomic_t malloced; |
| atomic_t pktalloced; /* Number of allocated packet buffers */ |
| spinlock_t dbgmem_lock; |
| bcm_mem_link_t *dbgmem_list; |
| spinlock_t pktalloc_lock; |
| atomic_t refcount; /* Number of references to this shared structure. */ |
| }; |
| typedef struct osl_cmn_info osl_cmn_t; |
| |
| struct osl_info { |
| osl_pubinfo_t pub; |
| #ifdef CTFPOOL |
| ctfpool_t *ctfpool; |
| #endif /* CTFPOOL */ |
| uint magic; |
| void *pdev; |
| uint failed; |
| uint bustype; |
| osl_cmn_t *cmn; /* Common OSL related data shred between two OSH's */ |
| |
| void *bus_handle; |
| #ifdef BCMDBG_CTRACE |
| spinlock_t ctrace_lock; |
| struct list_head ctrace_list; |
| int ctrace_num; |
| #endif /* BCMDBG_CTRACE */ |
| }; |
| |
| #define OSL_PKTTAG_CLEAR(p) \ |
| do { \ |
| struct sk_buff *s = (struct sk_buff *)(p); \ |
| ASSERT(OSL_PKTTAG_SZ == 32); \ |
| *(uint32 *)(&s->cb[0]) = 0; *(uint32 *)(&s->cb[4]) = 0; \ |
| *(uint32 *)(&s->cb[8]) = 0; *(uint32 *)(&s->cb[12]) = 0; \ |
| *(uint32 *)(&s->cb[16]) = 0; *(uint32 *)(&s->cb[20]) = 0; \ |
| *(uint32 *)(&s->cb[24]) = 0; *(uint32 *)(&s->cb[28]) = 0; \ |
| } while (0) |
| |
| /* PCMCIA attribute space access macros */ |
| |
| /* Global ASSERT type flag */ |
| uint32 g_assert_type = FALSE; |
| |
| static int16 linuxbcmerrormap[] = |
| { 0, /* 0 */ |
| -EINVAL, /* BCME_ERROR */ |
| -EINVAL, /* BCME_BADARG */ |
| -EINVAL, /* BCME_BADOPTION */ |
| -EINVAL, /* BCME_NOTUP */ |
| -EINVAL, /* BCME_NOTDOWN */ |
| -EINVAL, /* BCME_NOTAP */ |
| -EINVAL, /* BCME_NOTSTA */ |
| -EINVAL, /* BCME_BADKEYIDX */ |
| -EINVAL, /* BCME_RADIOOFF */ |
| -EINVAL, /* BCME_NOTBANDLOCKED */ |
| -EINVAL, /* BCME_NOCLK */ |
| -EINVAL, /* BCME_BADRATESET */ |
| -EINVAL, /* BCME_BADBAND */ |
| -E2BIG, /* BCME_BUFTOOSHORT */ |
| -E2BIG, /* BCME_BUFTOOLONG */ |
| -EBUSY, /* BCME_BUSY */ |
| -EINVAL, /* BCME_NOTASSOCIATED */ |
| -EINVAL, /* BCME_BADSSIDLEN */ |
| -EINVAL, /* BCME_OUTOFRANGECHAN */ |
| -EINVAL, /* BCME_BADCHAN */ |
| -EFAULT, /* BCME_BADADDR */ |
| -ENOMEM, /* BCME_NORESOURCE */ |
| -EOPNOTSUPP, /* BCME_UNSUPPORTED */ |
| -EMSGSIZE, /* BCME_BADLENGTH */ |
| -EINVAL, /* BCME_NOTREADY */ |
| -EPERM, /* BCME_EPERM */ |
| -ENOMEM, /* BCME_NOMEM */ |
| -EINVAL, /* BCME_ASSOCIATED */ |
| -ERANGE, /* BCME_RANGE */ |
| -EINVAL, /* BCME_NOTFOUND */ |
| -EINVAL, /* BCME_WME_NOT_ENABLED */ |
| -EINVAL, /* BCME_TSPEC_NOTFOUND */ |
| -EINVAL, /* BCME_ACM_NOTSUPPORTED */ |
| -EINVAL, /* BCME_NOT_WME_ASSOCIATION */ |
| -EIO, /* BCME_SDIO_ERROR */ |
| -ENODEV, /* BCME_DONGLE_DOWN */ |
| -EINVAL, /* BCME_VERSION */ |
| -EIO, /* BCME_TXFAIL */ |
| -EIO, /* BCME_RXFAIL */ |
| -ENODEV, /* BCME_NODEVICE */ |
| -EINVAL, /* BCME_NMODE_DISABLED */ |
| -ENODATA, /* BCME_NONRESIDENT */ |
| -EINVAL, /* BCME_SCANREJECT */ |
| -EINVAL, /* BCME_USAGE_ERROR */ |
| -EIO, /* BCME_IOCTL_ERROR */ |
| -EIO, /* BCME_SERIAL_PORT_ERR */ |
| -EOPNOTSUPP, /* BCME_DISABLED, BCME_NOTENABLED */ |
| -EIO, /* BCME_DECERR */ |
| -EIO, /* BCME_ENCERR */ |
| -EIO, /* BCME_MICERR */ |
| -ERANGE, /* BCME_REPLAY */ |
| -EINVAL, /* BCME_IE_NOTFOUND */ |
| |
| /* When an new error code is added to bcmutils.h, add os |
| * specific error translation here as well |
| */ |
| /* check if BCME_LAST changed since the last time this function was updated */ |
| #if BCME_LAST != -52 |
| #error "You need to add a OS error translation in the linuxbcmerrormap \ |
| for new error code defined in bcmutils.h" |
| #endif |
| }; |
| |
| /* translate bcmerrors into linux errors */ |
| int |
| osl_error(int bcmerror) |
| { |
| if (bcmerror > 0) |
| bcmerror = 0; |
| else if (bcmerror < BCME_LAST) |
| bcmerror = BCME_ERROR; |
| |
| /* Array bounds covered by ASSERT in osl_attach */ |
| return linuxbcmerrormap[-bcmerror]; |
| } |
| #ifdef SHARED_OSL_CMN |
| osl_t * |
| osl_attach(void *pdev, uint bustype, bool pkttag, void **osl_cmn) |
| { |
| #else |
| osl_t * |
| osl_attach(void *pdev, uint bustype, bool pkttag) |
| { |
| void **osl_cmn = NULL; |
| #endif /* SHARED_OSL_CMN */ |
| osl_t *osh; |
| gfp_t flags; |
| |
| flags = CAN_SLEEP() ? GFP_KERNEL: GFP_ATOMIC; |
| if (!(osh = kmalloc(sizeof(osl_t), flags))) |
| return osh; |
| |
| ASSERT(osh); |
| |
| bzero(osh, sizeof(osl_t)); |
| |
| if (osl_cmn == NULL || *osl_cmn == NULL) { |
| if (!(osh->cmn = kmalloc(sizeof(osl_cmn_t), flags))) { |
| kfree(osh); |
| return NULL; |
| } |
| bzero(osh->cmn, sizeof(osl_cmn_t)); |
| if (osl_cmn) |
| *osl_cmn = osh->cmn; |
| atomic_set(&osh->cmn->malloced, 0); |
| osh->cmn->dbgmem_list = NULL; |
| spin_lock_init(&(osh->cmn->dbgmem_lock)); |
| |
| spin_lock_init(&(osh->cmn->pktalloc_lock)); |
| |
| } else { |
| osh->cmn = *osl_cmn; |
| } |
| atomic_add(1, &osh->cmn->refcount); |
| |
| /* Check that error map has the right number of entries in it */ |
| ASSERT(ABS(BCME_LAST) == (ARRAYSIZE(linuxbcmerrormap) - 1)); |
| |
| osh->failed = 0; |
| osh->pdev = pdev; |
| osh->pub.pkttag = pkttag; |
| osh->bustype = bustype; |
| osh->magic = OS_HANDLE_MAGIC; |
| |
| switch (bustype) { |
| case PCI_BUS: |
| case SI_BUS: |
| case PCMCIA_BUS: |
| osh->pub.mmbus = TRUE; |
| break; |
| case JTAG_BUS: |
| case SDIO_BUS: |
| case USB_BUS: |
| case SPI_BUS: |
| case RPC_BUS: |
| osh->pub.mmbus = FALSE; |
| break; |
| default: |
| ASSERT(FALSE); |
| break; |
| } |
| |
| #ifdef BCMDBG_CTRACE |
| spin_lock_init(&osh->ctrace_lock); |
| INIT_LIST_HEAD(&osh->ctrace_list); |
| osh->ctrace_num = 0; |
| #endif /* BCMDBG_CTRACE */ |
| |
| |
| return osh; |
| } |
| |
| int osl_static_mem_init(osl_t *osh, void *adapter) |
| { |
| #if defined(CONFIG_DHD_USE_STATIC_BUF) |
| if (!bcm_static_buf && adapter) { |
| if (!(bcm_static_buf = (bcm_static_buf_t *)wifi_platform_prealloc(adapter, |
| 3, STATIC_BUF_SIZE + STATIC_BUF_TOTAL_LEN))) { |
| printk("can not alloc static buf!\n"); |
| bcm_static_skb = NULL; |
| ASSERT(osh->magic == OS_HANDLE_MAGIC); |
| kfree(osh); |
| return -ENOMEM; |
| } else { |
| printk("alloc static buf at %p!\n", bcm_static_buf); |
| } |
| |
| spin_lock_init(&bcm_static_buf->static_lock); |
| |
| bcm_static_buf->buf_ptr = (unsigned char *)bcm_static_buf + STATIC_BUF_SIZE; |
| } |
| |
| if (!bcm_static_skb && adapter) { |
| int i; |
| void *skb_buff_ptr = 0; |
| bcm_static_skb = (bcm_static_pkt_t *)((char *)bcm_static_buf + 2048); |
| skb_buff_ptr = wifi_platform_prealloc(adapter, 4, 0); |
| if (!skb_buff_ptr) { |
| printk("cannot alloc static buf!\n"); |
| bcm_static_buf = NULL; |
| bcm_static_skb = NULL; |
| ASSERT(osh->magic == OS_HANDLE_MAGIC); |
| kfree(osh); |
| return -ENOMEM; |
| } |
| |
| bcopy(skb_buff_ptr, bcm_static_skb, sizeof(struct sk_buff *) * |
| (STATIC_PKT_MAX_NUM * 2 + STATIC_PKT_4PAGE_NUM)); |
| for (i = 0; i < STATIC_PKT_MAX_NUM * 2 + STATIC_PKT_4PAGE_NUM; i++) |
| bcm_static_skb->pkt_use[i] = 0; |
| |
| sema_init(&bcm_static_skb->osl_pkt_sem, 1); |
| } |
| #endif /* CONFIG_DHD_USE_STATIC_BUF */ |
| |
| return 0; |
| } |
| |
| void osl_set_bus_handle(osl_t *osh, void *bus_handle) |
| { |
| osh->bus_handle = bus_handle; |
| } |
| |
| void* osl_get_bus_handle(osl_t *osh) |
| { |
| return osh->bus_handle; |
| } |
| |
| void |
| osl_detach(osl_t *osh) |
| { |
| if (osh == NULL) |
| return; |
| |
| ASSERT(osh->magic == OS_HANDLE_MAGIC); |
| atomic_sub(1, &osh->cmn->refcount); |
| if (atomic_read(&osh->cmn->refcount) == 0) { |
| kfree(osh->cmn); |
| } |
| kfree(osh); |
| } |
| |
| int osl_static_mem_deinit(osl_t *osh, void *adapter) |
| { |
| #ifdef CONFIG_DHD_USE_STATIC_BUF |
| if (bcm_static_buf) { |
| bcm_static_buf = 0; |
| } |
| if (bcm_static_skb) { |
| bcm_static_skb = 0; |
| } |
| #endif |
| return 0; |
| } |
| |
| static struct sk_buff *osl_alloc_skb(osl_t *osh, unsigned int len) |
| { |
| struct sk_buff *skb; |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25) |
| gfp_t flags = (in_atomic() || irqs_disabled()) ? GFP_ATOMIC : GFP_KERNEL; |
| #if defined(CONFIG_SPARSEMEM) && defined(CONFIG_ZONE_DMA) |
| flags |= GFP_ATOMIC; |
| #endif |
| skb = __dev_alloc_skb(len, flags); |
| #else |
| skb = dev_alloc_skb(len); |
| #endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25) */ |
| return skb; |
| } |
| |
| #ifdef CTFPOOL |
| |
| #ifdef CTFPOOL_SPINLOCK |
| #define CTFPOOL_LOCK(ctfpool, flags) spin_lock_irqsave(&(ctfpool)->lock, flags) |
| #define CTFPOOL_UNLOCK(ctfpool, flags) spin_unlock_irqrestore(&(ctfpool)->lock, flags) |
| #else |
| #define CTFPOOL_LOCK(ctfpool, flags) spin_lock_bh(&(ctfpool)->lock) |
| #define CTFPOOL_UNLOCK(ctfpool, flags) spin_unlock_bh(&(ctfpool)->lock) |
| #endif /* CTFPOOL_SPINLOCK */ |
| /* |
| * Allocate and add an object to packet pool. |
| */ |
| void * |
| osl_ctfpool_add(osl_t *osh) |
| { |
| struct sk_buff *skb; |
| #ifdef CTFPOOL_SPINLOCK |
| unsigned long flags; |
| #endif /* CTFPOOL_SPINLOCK */ |
| |
| if ((osh == NULL) || (osh->ctfpool == NULL)) |
| return NULL; |
| |
| CTFPOOL_LOCK(osh->ctfpool, flags); |
| ASSERT(osh->ctfpool->curr_obj <= osh->ctfpool->max_obj); |
| |
| /* No need to allocate more objects */ |
| if (osh->ctfpool->curr_obj == osh->ctfpool->max_obj) { |
| CTFPOOL_UNLOCK(osh->ctfpool, flags); |
| return NULL; |
| } |
| |
| /* Allocate a new skb and add it to the ctfpool */ |
| skb = osl_alloc_skb(osh, osh->ctfpool->obj_size); |
| if (skb == NULL) { |
| printf("%s: skb alloc of len %d failed\n", __FUNCTION__, |
| osh->ctfpool->obj_size); |
| CTFPOOL_UNLOCK(osh->ctfpool, flags); |
| return NULL; |
| } |
| |
| /* Add to ctfpool */ |
| skb->next = (struct sk_buff *)osh->ctfpool->head; |
| osh->ctfpool->head = skb; |
| osh->ctfpool->fast_frees++; |
| osh->ctfpool->curr_obj++; |
| |
| /* Hijack a skb member to store ptr to ctfpool */ |
| CTFPOOLPTR(osh, skb) = (void *)osh->ctfpool; |
| |
| /* Use bit flag to indicate skb from fast ctfpool */ |
| PKTFAST(osh, skb) = FASTBUF; |
| |
| CTFPOOL_UNLOCK(osh->ctfpool, flags); |
| |
| return skb; |
| } |
| |
| /* |
| * Add new objects to the pool. |
| */ |
| void |
| osl_ctfpool_replenish(osl_t *osh, uint thresh) |
| { |
| if ((osh == NULL) || (osh->ctfpool == NULL)) |
| return; |
| |
| /* Do nothing if no refills are required */ |
| while ((osh->ctfpool->refills > 0) && (thresh--)) { |
| osl_ctfpool_add(osh); |
| osh->ctfpool->refills--; |
| } |
| } |
| |
| /* |
| * Initialize the packet pool with specified number of objects. |
| */ |
| int32 |
| osl_ctfpool_init(osl_t *osh, uint numobj, uint size) |
| { |
| gfp_t flags; |
| |
| flags = CAN_SLEEP() ? GFP_KERNEL: GFP_ATOMIC; |
| osh->ctfpool = kzalloc(sizeof(ctfpool_t), flags); |
| ASSERT(osh->ctfpool); |
| |
| osh->ctfpool->max_obj = numobj; |
| osh->ctfpool->obj_size = size; |
| |
| spin_lock_init(&osh->ctfpool->lock); |
| |
| while (numobj--) { |
| if (!osl_ctfpool_add(osh)) |
| return -1; |
| osh->ctfpool->fast_frees--; |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * Cleanup the packet pool objects. |
| */ |
| void |
| osl_ctfpool_cleanup(osl_t *osh) |
| { |
| struct sk_buff *skb, *nskb; |
| #ifdef CTFPOOL_SPINLOCK |
| unsigned long flags; |
| #endif /* CTFPOOL_SPINLOCK */ |
| |
| if ((osh == NULL) || (osh->ctfpool == NULL)) |
| return; |
| |
| CTFPOOL_LOCK(osh->ctfpool, flags); |
| |
| skb = osh->ctfpool->head; |
| |
| while (skb != NULL) { |
| nskb = skb->next; |
| dev_kfree_skb(skb); |
| skb = nskb; |
| osh->ctfpool->curr_obj--; |
| } |
| |
| ASSERT(osh->ctfpool->curr_obj == 0); |
| osh->ctfpool->head = NULL; |
| CTFPOOL_UNLOCK(osh->ctfpool, flags); |
| |
| kfree(osh->ctfpool); |
| osh->ctfpool = NULL; |
| } |
| |
| void |
| osl_ctfpool_stats(osl_t *osh, void *b) |
| { |
| struct bcmstrbuf *bb; |
| |
| if ((osh == NULL) || (osh->ctfpool == NULL)) |
| return; |
| |
| #ifdef CONFIG_DHD_USE_STATIC_BUF |
| if (bcm_static_buf) { |
| bcm_static_buf = 0; |
| } |
| if (bcm_static_skb) { |
| bcm_static_skb = 0; |
| } |
| #endif /* CONFIG_DHD_USE_STATIC_BUF */ |
| |
| bb = b; |
| |
| ASSERT((osh != NULL) && (bb != NULL)); |
| |
| bcm_bprintf(bb, "max_obj %d obj_size %d curr_obj %d refills %d\n", |
| osh->ctfpool->max_obj, osh->ctfpool->obj_size, |
| osh->ctfpool->curr_obj, osh->ctfpool->refills); |
| bcm_bprintf(bb, "fast_allocs %d fast_frees %d slow_allocs %d\n", |
| osh->ctfpool->fast_allocs, osh->ctfpool->fast_frees, |
| osh->ctfpool->slow_allocs); |
| } |
| |
| static inline struct sk_buff * |
| osl_pktfastget(osl_t *osh, uint len) |
| { |
| struct sk_buff *skb; |
| #ifdef CTFPOOL_SPINLOCK |
| unsigned long flags; |
| #endif /* CTFPOOL_SPINLOCK */ |
| |
| /* Try to do fast allocate. Return null if ctfpool is not in use |
| * or if there are no items in the ctfpool. |
| */ |
| if (osh->ctfpool == NULL) |
| return NULL; |
| |
| CTFPOOL_LOCK(osh->ctfpool, flags); |
| if (osh->ctfpool->head == NULL) { |
| ASSERT(osh->ctfpool->curr_obj == 0); |
| osh->ctfpool->slow_allocs++; |
| CTFPOOL_UNLOCK(osh->ctfpool, flags); |
| return NULL; |
| } |
| |
| if (len > osh->ctfpool->obj_size) { |
| CTFPOOL_UNLOCK(osh->ctfpool, flags); |
| return NULL; |
| } |
| |
| ASSERT(len <= osh->ctfpool->obj_size); |
| |
| /* Get an object from ctfpool */ |
| skb = (struct sk_buff *)osh->ctfpool->head; |
| osh->ctfpool->head = (void *)skb->next; |
| |
| osh->ctfpool->fast_allocs++; |
| osh->ctfpool->curr_obj--; |
| ASSERT(CTFPOOLHEAD(osh, skb) == (struct sock *)osh->ctfpool->head); |
| CTFPOOL_UNLOCK(osh->ctfpool, flags); |
| |
| /* Init skb struct */ |
| skb->next = skb->prev = NULL; |
| #if defined(__ARM_ARCH_7A__) |
| skb->data = skb->head + NET_SKB_PAD; |
| skb->tail = skb->head + NET_SKB_PAD; |
| #else |
| skb->data = skb->head + 16; |
| skb->tail = skb->head + 16; |
| #endif /* __ARM_ARCH_7A__ */ |
| skb->len = 0; |
| skb->cloned = 0; |
| #if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 14) |
| skb->list = NULL; |
| #endif |
| atomic_set(&skb->users, 1); |
| |
| PKTSETCLINK(skb, NULL); |
| PKTCCLRATTR(skb); |
| PKTFAST(osh, skb) &= ~(CTFBUF | SKIPCT | CHAINED); |
| |
| return skb; |
| } |
| #endif /* CTFPOOL */ |
| /* Convert a driver packet to native(OS) packet |
| * In the process, packettag is zeroed out before sending up |
| * IP code depends on skb->cb to be setup correctly with various options |
| * In our case, that means it should be 0 |
| */ |
| struct sk_buff * BCMFASTPATH |
| osl_pkt_tonative(osl_t *osh, void *pkt) |
| { |
| struct sk_buff *nskb; |
| #ifdef BCMDBG_CTRACE |
| struct sk_buff *nskb1, *nskb2; |
| #endif |
| |
| if (osh->pub.pkttag) |
| OSL_PKTTAG_CLEAR(pkt); |
| |
| /* Decrement the packet counter */ |
| for (nskb = (struct sk_buff *)pkt; nskb; nskb = nskb->next) { |
| atomic_sub(PKTISCHAINED(nskb) ? PKTCCNT(nskb) : 1, &osh->cmn->pktalloced); |
| |
| #ifdef BCMDBG_CTRACE |
| for (nskb1 = nskb; nskb1 != NULL; nskb1 = nskb2) { |
| if (PKTISCHAINED(nskb1)) { |
| nskb2 = PKTCLINK(nskb1); |
| } |
| else |
| nskb2 = NULL; |
| |
| DEL_CTRACE(osh, nskb1); |
| } |
| #endif /* BCMDBG_CTRACE */ |
| } |
| return (struct sk_buff *)pkt; |
| } |
| |
| /* Convert a native(OS) packet to driver packet. |
| * In the process, native packet is destroyed, there is no copying |
| * Also, a packettag is zeroed out |
| */ |
| #ifdef BCMDBG_CTRACE |
| void * BCMFASTPATH |
| osl_pkt_frmnative(osl_t *osh, void *pkt, int line, char *file) |
| #else |
| void * BCMFASTPATH |
| osl_pkt_frmnative(osl_t *osh, void *pkt) |
| #endif /* BCMDBG_CTRACE */ |
| { |
| struct sk_buff *cskb; |
| struct sk_buff *nskb; |
| unsigned long pktalloced = 0; |
| |
| if (osh->pub.pkttag) |
| OSL_PKTTAG_CLEAR(pkt); |
| |
| /* walk the PKTCLINK() list */ |
| for (cskb = (struct sk_buff *)pkt; |
| cskb != NULL; |
| cskb = PKTISCHAINED(cskb) ? PKTCLINK(cskb) : NULL) { |
| |
| /* walk the pkt buffer list */ |
| for (nskb = cskb; nskb; nskb = nskb->next) { |
| |
| /* Increment the packet counter */ |
| pktalloced++; |
| |
| /* clean the 'prev' pointer |
| * Kernel 3.18 is leaving skb->prev pointer set to skb |
| * to indicate a non-fragmented skb |
| */ |
| #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 18, 0)) |
| nskb->prev = NULL; |
| #endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3, 18, 0) */ |
| |
| |
| #ifdef BCMDBG_CTRACE |
| ADD_CTRACE(osh, nskb, file, line); |
| #endif /* BCMDBG_CTRACE */ |
| } |
| } |
| |
| /* Increment the packet counter */ |
| atomic_add(pktalloced, &osh->cmn->pktalloced); |
| |
| return (void *)pkt; |
| } |
| |
| /* Return a new packet. zero out pkttag */ |
| #ifdef BCMDBG_CTRACE |
| void * BCMFASTPATH |
| osl_pktget(osl_t *osh, uint len, int line, char *file) |
| #else |
| void * BCMFASTPATH |
| osl_pktget(osl_t *osh, uint len) |
| #endif /* BCMDBG_CTRACE */ |
| { |
| struct sk_buff *skb; |
| |
| #ifdef CTFPOOL |
| /* Allocate from local pool */ |
| skb = osl_pktfastget(osh, len); |
| if ((skb != NULL) || ((skb = osl_alloc_skb(osh, len)) != NULL)) { |
| #else /* CTFPOOL */ |
| if ((skb = osl_alloc_skb(osh, len))) { |
| #endif /* CTFPOOL */ |
| skb->tail += len; |
| skb->len += len; |
| skb->priority = 0; |
| |
| #ifdef BCMDBG_CTRACE |
| ADD_CTRACE(osh, skb, file, line); |
| #endif |
| atomic_inc(&osh->cmn->pktalloced); |
| } |
| |
| return ((void*) skb); |
| } |
| |
| #ifdef CTFPOOL |
| static inline void |
| osl_pktfastfree(osl_t *osh, struct sk_buff *skb) |
| { |
| ctfpool_t *ctfpool; |
| #ifdef CTFPOOL_SPINLOCK |
| unsigned long flags; |
| #endif /* CTFPOOL_SPINLOCK */ |
| |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 14) |
| skb->tstamp.tv.sec = 0; |
| #else |
| skb->stamp.tv_sec = 0; |
| #endif |
| |
| /* We only need to init the fields that we change */ |
| skb->dev = NULL; |
| #if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 36) |
| skb->dst = NULL; |
| #endif |
| OSL_PKTTAG_CLEAR(skb); |
| skb->ip_summed = 0; |
| |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 36) |
| skb_orphan(skb); |
| #else |
| skb->destructor = NULL; |
| #endif |
| |
| ctfpool = (ctfpool_t *)CTFPOOLPTR(osh, skb); |
| ASSERT(ctfpool != NULL); |
| |
| /* Add object to the ctfpool */ |
| CTFPOOL_LOCK(ctfpool, flags); |
| skb->next = (struct sk_buff *)ctfpool->head; |
| ctfpool->head = (void *)skb; |
| |
| ctfpool->fast_frees++; |
| ctfpool->curr_obj++; |
| |
| ASSERT(ctfpool->curr_obj <= ctfpool->max_obj); |
| CTFPOOL_UNLOCK(ctfpool, flags); |
| } |
| #endif /* CTFPOOL */ |
| |
| /* Free the driver packet. Free the tag if present */ |
| void BCMFASTPATH |
| osl_pktfree(osl_t *osh, void *p, bool send) |
| { |
| struct sk_buff *skb, *nskb; |
| if (osh == NULL) |
| return; |
| |
| skb = (struct sk_buff*) p; |
| |
| if (send && osh->pub.tx_fn) |
| osh->pub.tx_fn(osh->pub.tx_ctx, p, 0); |
| |
| PKTDBG_TRACE(osh, (void *) skb, PKTLIST_PKTFREE); |
| |
| /* perversion: we use skb->next to chain multi-skb packets */ |
| while (skb) { |
| nskb = skb->next; |
| skb->next = NULL; |
| |
| #ifdef BCMDBG_CTRACE |
| DEL_CTRACE(osh, skb); |
| #endif |
| |
| |
| #ifdef CTFPOOL |
| if (PKTISFAST(osh, skb)) { |
| if (atomic_read(&skb->users) == 1) |
| smp_rmb(); |
| else if (!atomic_dec_and_test(&skb->users)) |
| goto next_skb; |
| osl_pktfastfree(osh, skb); |
| } else |
| #endif |
| { |
| if (skb->destructor) |
| /* cannot kfree_skb() on hard IRQ (net/core/skbuff.c) if |
| * destructor exists |
| */ |
| dev_kfree_skb_any(skb); |
| else |
| /* can free immediately (even in_irq()) if destructor |
| * does not exist |
| */ |
| dev_kfree_skb(skb); |
| } |
| #ifdef CTFPOOL |
| next_skb: |
| #endif |
| atomic_dec(&osh->cmn->pktalloced); |
| skb = nskb; |
| } |
| } |
| |
| #ifdef CONFIG_DHD_USE_STATIC_BUF |
| void* |
| osl_pktget_static(osl_t *osh, uint len) |
| { |
| int i = 0; |
| struct sk_buff *skb; |
| |
| if (len > DHD_SKB_MAX_BUFSIZE) { |
| printk("%s: attempt to allocate huge packet (0x%x)\n", __FUNCTION__, len); |
| return osl_pktget(osh, len); |
| } |
| |
| down(&bcm_static_skb->osl_pkt_sem); |
| |
| if (len <= DHD_SKB_1PAGE_BUFSIZE) { |
| for (i = 0; i < STATIC_PKT_MAX_NUM; i++) { |
| if (bcm_static_skb->pkt_use[i] == 0) |
| break; |
| } |
| |
| if (i != STATIC_PKT_MAX_NUM) { |
| bcm_static_skb->pkt_use[i] = 1; |
| |
| skb = bcm_static_skb->skb_4k[i]; |
| skb_set_tail_pointer(skb, len); |
| skb->len = len; |
| |
| up(&bcm_static_skb->osl_pkt_sem); |
| return skb; |
| } |
| } |
| |
| if (len <= DHD_SKB_2PAGE_BUFSIZE) { |
| for (i = 0; i < STATIC_PKT_MAX_NUM; i++) { |
| if (bcm_static_skb->pkt_use[i + STATIC_PKT_MAX_NUM] |
| == 0) |
| break; |
| } |
| |
| if (i != STATIC_PKT_MAX_NUM) { |
| bcm_static_skb->pkt_use[i + STATIC_PKT_MAX_NUM] = 1; |
| skb = bcm_static_skb->skb_8k[i]; |
| skb_set_tail_pointer(skb, len); |
| skb->len = len; |
| |
| up(&bcm_static_skb->osl_pkt_sem); |
| return skb; |
| } |
| } |
| |
| #if defined(ENHANCED_STATIC_BUF) |
| if (bcm_static_skb->pkt_use[STATIC_PKT_MAX_NUM * 2] == 0) { |
| bcm_static_skb->pkt_use[STATIC_PKT_MAX_NUM * 2] = 1; |
| |
| skb = bcm_static_skb->skb_16k; |
| skb_set_tail_pointer(skb, len); |
| skb->len = len; |
| |
| up(&bcm_static_skb->osl_pkt_sem); |
| return skb; |
| } |
| #endif |
| |
| up(&bcm_static_skb->osl_pkt_sem); |
| printk("%s: all static pkt in use!\n", __FUNCTION__); |
| return osl_pktget(osh, len); |
| } |
| |
| void |
| osl_pktfree_static(osl_t *osh, void *p, bool send) |
| { |
| int i; |
| if (!bcm_static_skb) { |
| osl_pktfree(osh, p, send); |
| return; |
| } |
| |
| down(&bcm_static_skb->osl_pkt_sem); |
| for (i = 0; i < STATIC_PKT_MAX_NUM; i++) { |
| if (p == bcm_static_skb->skb_4k[i]) { |
| bcm_static_skb->pkt_use[i] = 0; |
| up(&bcm_static_skb->osl_pkt_sem); |
| return; |
| } |
| } |
| |
| for (i = 0; i < STATIC_PKT_MAX_NUM; i++) { |
| if (p == bcm_static_skb->skb_8k[i]) { |
| bcm_static_skb->pkt_use[i + STATIC_PKT_MAX_NUM] = 0; |
| up(&bcm_static_skb->osl_pkt_sem); |
| return; |
| } |
| } |
| #ifdef ENHANCED_STATIC_BUF |
| if (p == bcm_static_skb->skb_16k) { |
| bcm_static_skb->pkt_use[STATIC_PKT_MAX_NUM * 2] = 0; |
| up(&bcm_static_skb->osl_pkt_sem); |
| return; |
| } |
| #endif |
| up(&bcm_static_skb->osl_pkt_sem); |
| osl_pktfree(osh, p, send); |
| } |
| #endif /* CONFIG_DHD_USE_STATIC_BUF */ |
| |
| uint32 |
| osl_pci_read_config(osl_t *osh, uint offset, uint size) |
| { |
| uint val = 0; |
| uint retry = PCI_CFG_RETRY; |
| |
| ASSERT((osh && (osh->magic == OS_HANDLE_MAGIC))); |
| |
| /* only 4byte access supported */ |
| ASSERT(size == 4); |
| |
| do { |
| pci_read_config_dword(osh->pdev, offset, &val); |
| if (val != 0xffffffff) |
| break; |
| } while (retry--); |
| |
| |
| return (val); |
| } |
| |
| void |
| osl_pci_write_config(osl_t *osh, uint offset, uint size, uint val) |
| { |
| uint retry = PCI_CFG_RETRY; |
| |
| ASSERT((osh && (osh->magic == OS_HANDLE_MAGIC))); |
| |
| /* only 4byte access supported */ |
| ASSERT(size == 4); |
| |
| do { |
| pci_write_config_dword(osh->pdev, offset, val); |
| if (offset != PCI_BAR0_WIN) |
| break; |
| if (osl_pci_read_config(osh, offset, size) == val) |
| break; |
| } while (retry--); |
| |
| } |
| |
| /* return bus # for the pci device pointed by osh->pdev */ |
| uint |
| osl_pci_bus(osl_t *osh) |
| { |
| ASSERT(osh && (osh->magic == OS_HANDLE_MAGIC) && osh->pdev); |
| |
| return ((struct pci_dev *)osh->pdev)->bus->number; |
| } |
| |
| /* return slot # for the pci device pointed by osh->pdev */ |
| uint |
| osl_pci_slot(osl_t *osh) |
| { |
| ASSERT(osh && (osh->magic == OS_HANDLE_MAGIC) && osh->pdev); |
| |
| #if defined(__ARM_ARCH_7A__) && LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 35) |
| return PCI_SLOT(((struct pci_dev *)osh->pdev)->devfn) + 1; |
| #else |
| return PCI_SLOT(((struct pci_dev *)osh->pdev)->devfn); |
| #endif |
| } |
| |
| /* return the pci device pointed by osh->pdev */ |
| struct pci_dev * |
| osl_pci_device(osl_t *osh) |
| { |
| ASSERT(osh && (osh->magic == OS_HANDLE_MAGIC) && osh->pdev); |
| |
| return osh->pdev; |
| } |
| |
| static void |
| osl_pcmcia_attr(osl_t *osh, uint offset, char *buf, int size, bool write) |
| { |
| } |
| |
| void |
| osl_pcmcia_read_attr(osl_t *osh, uint offset, void *buf, int size) |
| { |
| osl_pcmcia_attr(osh, offset, (char *) buf, size, FALSE); |
| } |
| |
| void |
| osl_pcmcia_write_attr(osl_t *osh, uint offset, void *buf, int size) |
| { |
| osl_pcmcia_attr(osh, offset, (char *) buf, size, TRUE); |
| } |
| |
| void * |
| osl_malloc(osl_t *osh, uint size) |
| { |
| void *addr; |
| gfp_t flags; |
| |
| /* only ASSERT if osh is defined */ |
| if (osh) |
| ASSERT(osh->magic == OS_HANDLE_MAGIC); |
| #ifdef CONFIG_DHD_USE_STATIC_BUF |
| if (bcm_static_buf) |
| { |
| unsigned long irq_flags; |
| int i = 0; |
| if ((size >= PAGE_SIZE)&&(size <= STATIC_BUF_SIZE)) |
| { |
| spin_lock_irqsave(&bcm_static_buf->static_lock, irq_flags); |
| |
| for (i = 0; i < STATIC_BUF_MAX_NUM; i++) |
| { |
| if (bcm_static_buf->buf_use[i] == 0) |
| break; |
| } |
| |
| if (i == STATIC_BUF_MAX_NUM) |
| { |
| spin_unlock_irqrestore(&bcm_static_buf->static_lock, irq_flags); |
| printk("all static buff in use!\n"); |
| goto original; |
| } |
| |
| bcm_static_buf->buf_use[i] = 1; |
| spin_unlock_irqrestore(&bcm_static_buf->static_lock, irq_flags); |
| |
| bzero(bcm_static_buf->buf_ptr+STATIC_BUF_SIZE*i, size); |
| if (osh) |
| atomic_add(size, &osh->cmn->malloced); |
| |
| return ((void *)(bcm_static_buf->buf_ptr+STATIC_BUF_SIZE*i)); |
| } |
| } |
| original: |
| #endif /* CONFIG_DHD_USE_STATIC_BUF */ |
| |
| flags = CAN_SLEEP() ? GFP_KERNEL: GFP_ATOMIC; |
| if ((addr = kmalloc(size, flags)) == NULL) { |
| if (osh) |
| osh->failed++; |
| return (NULL); |
| } |
| if (osh && osh->cmn) |
| atomic_add(size, &osh->cmn->malloced); |
| |
| return (addr); |
| } |
| |
| void * |
| osl_mallocz(osl_t *osh, uint size) |
| { |
| void *ptr; |
| |
| ptr = osl_malloc(osh, size); |
| |
| if (ptr != NULL) { |
| bzero(ptr, size); |
| } |
| |
| return ptr; |
| } |
| |
| void |
| osl_mfree(osl_t *osh, void *addr, uint size) |
| { |
| #ifdef CONFIG_DHD_USE_STATIC_BUF |
| unsigned long flags; |
| |
| if (bcm_static_buf) |
| { |
| if ((addr > (void *)bcm_static_buf) && ((unsigned char *)addr |
| <= ((unsigned char *)bcm_static_buf + STATIC_BUF_TOTAL_LEN))) |
| { |
| int buf_idx = 0; |
| |
| buf_idx = ((unsigned char *)addr - bcm_static_buf->buf_ptr)/STATIC_BUF_SIZE; |
| |
| spin_lock_irqsave(&bcm_static_buf->static_lock, flags); |
| bcm_static_buf->buf_use[buf_idx] = 0; |
| spin_unlock_irqrestore(&bcm_static_buf->static_lock, flags); |
| |
| if (osh && osh->cmn) { |
| ASSERT(osh->magic == OS_HANDLE_MAGIC); |
| atomic_sub(size, &osh->cmn->malloced); |
| } |
| return; |
| } |
| } |
| #endif /* CONFIG_DHD_USE_STATIC_BUF */ |
| if (osh && osh->cmn) { |
| ASSERT(osh->magic == OS_HANDLE_MAGIC); |
| |
| ASSERT(size <= osl_malloced(osh)); |
| |
| atomic_sub(size, &osh->cmn->malloced); |
| } |
| kfree(addr); |
| } |
| |
| uint |
| osl_check_memleak(osl_t *osh) |
| { |
| ASSERT((osh && (osh->magic == OS_HANDLE_MAGIC))); |
| if (atomic_read(&osh->cmn->refcount) == 1) |
| return (atomic_read(&osh->cmn->malloced)); |
| else |
| return 0; |
| } |
| |
| uint |
| osl_malloced(osl_t *osh) |
| { |
| ASSERT((osh && (osh->magic == OS_HANDLE_MAGIC))); |
| return (atomic_read(&osh->cmn->malloced)); |
| } |
| |
| uint |
| osl_malloc_failed(osl_t *osh) |
| { |
| ASSERT((osh && (osh->magic == OS_HANDLE_MAGIC))); |
| return (osh->failed); |
| } |
| |
| |
| uint |
| osl_dma_consistent_align(void) |
| { |
| return (PAGE_SIZE); |
| } |
| |
| void* |
| osl_dma_alloc_consistent(osl_t *osh, uint size, uint16 align_bits, uint *alloced, dmaaddr_t *pap) |
| { |
| void *va; |
| uint16 align = (1 << align_bits); |
| ASSERT((osh && (osh->magic == OS_HANDLE_MAGIC))); |
| |
| if (!ISALIGNED(DMA_CONSISTENT_ALIGN, align)) |
| size += align; |
| *alloced = size; |
| |
| #ifdef __ARM_ARCH_7A__ |
| va = kmalloc(size, GFP_ATOMIC | __GFP_ZERO); |
| if (va) |
| *pap = (ulong)__virt_to_phys((ulong)va); |
| #else |
| { |
| dma_addr_t pap_lin; |
| va = pci_alloc_consistent(osh->pdev, size, &pap_lin); |
| *pap = (dmaaddr_t)pap_lin; |
| } |
| #endif |
| return va; |
| } |
| |
| void |
| osl_dma_free_consistent(osl_t *osh, void *va, uint size, dmaaddr_t pa) |
| { |
| ASSERT((osh && (osh->magic == OS_HANDLE_MAGIC))); |
| |
| #ifdef __ARM_ARCH_7A__ |
| kfree(va); |
| #else |
| pci_free_consistent(osh->pdev, size, va, (dma_addr_t)pa); |
| #endif |
| } |
| |
| dmaaddr_t BCMFASTPATH |
| osl_dma_map(osl_t *osh, void *va, uint size, int direction, void *p, hnddma_seg_map_t *dmah) |
| { |
| int dir; |
| |
| ASSERT((osh && (osh->magic == OS_HANDLE_MAGIC))); |
| dir = (direction == DMA_TX)? PCI_DMA_TODEVICE: PCI_DMA_FROMDEVICE; |
| |
| #if defined(__ARM_ARCH_7A__) && defined(BCMDMASGLISTOSL) |
| if (dmah != NULL) { |
| int32 nsegs, i, totsegs = 0, totlen = 0; |
| struct scatterlist *sg, _sg[MAX_DMA_SEGS * 2]; |
| struct sk_buff *skb; |
| for (skb = (struct sk_buff *)p; skb != NULL; skb = PKTNEXT(osh, skb)) { |
| sg = &_sg[totsegs]; |
| if (skb_is_nonlinear(skb)) { |
| nsegs = skb_to_sgvec(skb, sg, 0, PKTLEN(osh, skb)); |
| ASSERT((nsegs > 0) && (totsegs + nsegs <= MAX_DMA_SEGS)); |
| pci_map_sg(osh->pdev, sg, nsegs, dir); |
| } else { |
| nsegs = 1; |
| ASSERT(totsegs + nsegs <= MAX_DMA_SEGS); |
| sg->page_link = 0; |
| sg_set_buf(sg, PKTDATA(osh, skb), PKTLEN(osh, skb)); |
| pci_map_single(osh->pdev, PKTDATA(osh, skb), PKTLEN(osh, skb), dir); |
| } |
| totsegs += nsegs; |
| totlen += PKTLEN(osh, skb); |
| } |
| dmah->nsegs = totsegs; |
| dmah->origsize = totlen; |
| for (i = 0, sg = _sg; i < totsegs; i++, sg++) { |
| dmah->segs[i].addr = sg_phys(sg); |
| dmah->segs[i].length = sg->length; |
| } |
| return dmah->segs[0].addr; |
| } |
| #endif /* __ARM_ARCH_7A__ && BCMDMASGLISTOSL */ |
| |
| return (pci_map_single(osh->pdev, va, size, dir)); |
| } |
| |
| void BCMFASTPATH |
| osl_dma_unmap(osl_t *osh, uint pa, uint size, int direction) |
| { |
| int dir; |
| |
| ASSERT((osh && (osh->magic == OS_HANDLE_MAGIC))); |
| dir = (direction == DMA_TX)? PCI_DMA_TODEVICE: PCI_DMA_FROMDEVICE; |
| pci_unmap_single(osh->pdev, (uint32)pa, size, dir); |
| } |
| |
| |
| #if defined(__ARM_ARCH_7A__) |
| |
| inline void BCMFASTPATH |
| osl_cache_flush(void *va, uint size) |
| { |
| dma_sync_single_for_device(OSH_NULL, virt_to_dma(OSH_NULL, va), size, DMA_TX); |
| } |
| |
| inline void BCMFASTPATH |
| osl_cache_inv(void *va, uint size) |
| { |
| dma_sync_single_for_cpu(OSH_NULL, virt_to_dma(OSH_NULL, va), size, DMA_RX); |
| } |
| |
| inline void osl_prefetch(const void *ptr) |
| { |
| __asm__ __volatile__("pld\t%0" :: "o"(*(char *)ptr) : "cc"); |
| } |
| #endif |
| |
| #if defined(BCMASSERT_LOG) |
| void |
| osl_assert(const char *exp, const char *file, int line) |
| { |
| char tempbuf[256]; |
| const char *basename; |
| |
| basename = strrchr(file, '/'); |
| /* skip the '/' */ |
| if (basename) |
| basename++; |
| |
| if (!basename) |
| basename = file; |
| |
| #ifdef BCMASSERT_LOG |
| snprintf(tempbuf, 64, "\"%s\": file \"%s\", line %d\n", |
| exp, basename, line); |
| printk("%s", tempbuf); |
| #endif /* BCMASSERT_LOG */ |
| |
| |
| } |
| #endif |
| |
| void |
| osl_delay(uint usec) |
| { |
| uint d; |
| |
| while (usec > 0) { |
| d = MIN(usec, 1000); |
| udelay(d); |
| usec -= d; |
| } |
| } |
| |
| void |
| osl_sleep(uint ms) |
| { |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 36) |
| if (ms < 20) |
| usleep_range(ms*1000, ms*1000 + 1000); |
| else |
| #endif |
| msleep(ms); |
| } |
| |
| |
| |
| /* Clone a packet. |
| * The pkttag contents are NOT cloned. |
| */ |
| #ifdef BCMDBG_CTRACE |
| void * |
| osl_pktdup(osl_t *osh, void *skb, int line, char *file) |
| #else |
| void * |
| osl_pktdup(osl_t *osh, void *skb) |
| #endif /* BCMDBG_CTRACE */ |
| { |
| void * p; |
| |
| ASSERT(!PKTISCHAINED(skb)); |
| |
| /* clear the CTFBUF flag if set and map the rest of the buffer |
| * before cloning. |
| */ |
| PKTCTFMAP(osh, skb); |
| |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 36) |
| if ((p = pskb_copy((struct sk_buff *)skb, GFP_ATOMIC)) == NULL) |
| #else |
| if ((p = skb_clone((struct sk_buff *)skb, GFP_ATOMIC)) == NULL) |
| #endif |
| return NULL; |
| |
| #ifdef CTFPOOL |
| if (PKTISFAST(osh, skb)) { |
| ctfpool_t *ctfpool; |
| |
| /* if the buffer allocated from ctfpool is cloned then |
| * we can't be sure when it will be freed. since there |
| * is a chance that we will be losing a buffer |
| * from our pool, we increment the refill count for the |
| * object to be alloced later. |
| */ |
| ctfpool = (ctfpool_t *)CTFPOOLPTR(osh, skb); |
| ASSERT(ctfpool != NULL); |
| PKTCLRFAST(osh, p); |
| PKTCLRFAST(osh, skb); |
| ctfpool->refills++; |
| } |
| #endif /* CTFPOOL */ |
| |
| /* Clear PKTC context */ |
| PKTSETCLINK(p, NULL); |
| PKTCCLRFLAGS(p); |
| PKTCSETCNT(p, 1); |
| PKTCSETLEN(p, PKTLEN(osh, skb)); |
| |
| /* skb_clone copies skb->cb.. we don't want that */ |
| if (osh->pub.pkttag) |
| OSL_PKTTAG_CLEAR(p); |
| |
| /* Increment the packet counter */ |
| atomic_inc(&osh->cmn->pktalloced); |
| #ifdef BCMDBG_CTRACE |
| ADD_CTRACE(osh, (struct sk_buff *)p, file, line); |
| #endif |
| return (p); |
| } |
| |
| #ifdef BCMDBG_CTRACE |
| int osl_pkt_is_frmnative(osl_t *osh, struct sk_buff *pkt) |
| { |
| unsigned long flags; |
| struct sk_buff *skb; |
| int ck = FALSE; |
| |
| spin_lock_irqsave(&osh->ctrace_lock, flags); |
| |
| list_for_each_entry(skb, &osh->ctrace_list, ctrace_list) { |
| if (pkt == skb) { |
| ck = TRUE; |
| break; |
| } |
| } |
| |
| spin_unlock_irqrestore(&osh->ctrace_lock, flags); |
| return ck; |
| } |
| |
| void osl_ctrace_dump(osl_t *osh, struct bcmstrbuf *b) |
| { |
| unsigned long flags; |
| struct sk_buff *skb; |
| int idx = 0; |
| int i, j; |
| |
| spin_lock_irqsave(&osh->ctrace_lock, flags); |
| |
| if (b != NULL) |
| bcm_bprintf(b, " Total %d sbk not free\n", osh->ctrace_num); |
| else |
| printk(" Total %d sbk not free\n", osh->ctrace_num); |
| |
| list_for_each_entry(skb, &osh->ctrace_list, ctrace_list) { |
| if (b != NULL) |
| bcm_bprintf(b, "[%d] skb %p:\n", ++idx, skb); |
| else |
| printk("[%d] skb %p:\n", ++idx, skb); |
| |
| for (i = 0; i < skb->ctrace_count; i++) { |
| j = (skb->ctrace_start + i) % CTRACE_NUM; |
| if (b != NULL) |
| bcm_bprintf(b, " [%s(%d)]\n", skb->func[j], skb->line[j]); |
| else |
| printk(" [%s(%d)]\n", skb->func[j], skb->line[j]); |
| } |
| if (b != NULL) |
| bcm_bprintf(b, "\n"); |
| else |
| printk("\n"); |
| } |
| |
| spin_unlock_irqrestore(&osh->ctrace_lock, flags); |
| |
| return; |
| } |
| #endif /* BCMDBG_CTRACE */ |
| |
| |
| /* |
| * OSLREGOPS specifies the use of osl_XXX routines to be used for register access |
| */ |
| |
| /* |
| * BINOSL selects the slightly slower function-call-based binary compatible osl. |
| */ |
| |
| uint |
| osl_pktalloced(osl_t *osh) |
| { |
| if (atomic_read(&osh->cmn->refcount) == 1) |
| return (atomic_read(&osh->cmn->pktalloced)); |
| else |
| return 0; |
| } |
| |
| /* Linux Kernel: File Operations: start */ |
| void * |
| osl_os_open_image(char *filename) |
| { |
| struct file *fp; |
| |
| fp = filp_open(filename, O_RDONLY, 0); |
| /* |
| * 2.6.11 (FC4) supports filp_open() but later revs don't? |
| * Alternative: |
| * fp = open_namei(AT_FDCWD, filename, O_RD, 0); |
| * ??? |
| */ |
| if (IS_ERR(fp)) |
| fp = NULL; |
| |
| return fp; |
| } |
| |
| int |
| osl_os_get_image_block(char *buf, int len, void *image) |
| { |
| struct file *fp = (struct file *)image; |
| int rdlen; |
| |
| if (!image) |
| return 0; |
| |
| rdlen = kernel_read(fp, fp->f_pos, buf, len); |
| if (rdlen > 0) |
| fp->f_pos += rdlen; |
| |
| return rdlen; |
| } |
| |
| void |
| osl_os_close_image(void *image) |
| { |
| if (image) |
| filp_close((struct file *)image, NULL); |
| } |
| |
| int |
| osl_os_image_size(void *image) |
| { |
| int len = 0, curroffset; |
| |
| if (image) { |
| /* store the current offset */ |
| curroffset = generic_file_llseek(image, 0, 1); |
| /* goto end of file to get length */ |
| len = generic_file_llseek(image, 0, 2); |
| /* restore back the offset */ |
| generic_file_llseek(image, curroffset, 0); |
| } |
| return len; |
| } |
| |
| /* Linux Kernel: File Operations: end */ |