1424 lines
32 KiB
C
1424 lines
32 KiB
C
/*
|
|
* Linux OS Independent Layer
|
|
*
|
|
* Copyright (C) 1999-2013, 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 401964 2013-05-14 03:50:28Z $
|
|
*/
|
|
|
|
#define LINUX_PORT
|
|
|
|
#include <typedefs.h>
|
|
#include <bcmendian.h>
|
|
#include <linuxver.h>
|
|
#include <bcmdefs.h>
|
|
#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 */
|
|
|
|
#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 {
|
|
struct semaphore static_sem;
|
|
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;
|
|
#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_info {
|
|
osl_pubinfo_t pub;
|
|
#ifdef CTFPOOL
|
|
ctfpool_t *ctfpool;
|
|
#endif /* CTFPOOL */
|
|
uint magic;
|
|
void *pdev;
|
|
atomic_t malloced;
|
|
atomic_t pktalloced; /* Number of allocated packet buffers */
|
|
uint failed;
|
|
uint bustype;
|
|
bcm_mem_link_t *dbgmem_list;
|
|
spinlock_t dbgmem_lock;
|
|
#ifdef BCMDBG_CTRACE
|
|
spinlock_t ctrace_lock;
|
|
struct list_head ctrace_list;
|
|
int ctrace_num;
|
|
#endif /* BCMDBG_CTRACE */
|
|
spinlock_t pktalloc_lock;
|
|
};
|
|
|
|
#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 */
|
|
|
|
/* When an new error code is added to bcmutils.h, add os
|
|
* specific error translation here as well
|
|
*/
|
|
};
|
|
|
|
/* 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];
|
|
}
|
|
|
|
extern uint8* dhd_os_prealloc(void *osh, int section, int size);
|
|
|
|
osl_t *
|
|
osl_attach(void *pdev, uint bustype, bool pkttag)
|
|
{
|
|
osl_t *osh;
|
|
gfp_t flags;
|
|
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
|
|
flags = (in_atomic() || irqs_disabled()) ? GFP_ATOMIC : GFP_KERNEL;
|
|
#else
|
|
flags = GFP_ATOMIC;
|
|
#endif
|
|
if (!(osh = kmalloc(sizeof(osl_t), flags)))
|
|
return osh;
|
|
|
|
ASSERT(osh);
|
|
|
|
bzero(osh, sizeof(osl_t));
|
|
|
|
/* Check that error map has the right number of entries in it */
|
|
ASSERT(ABS(BCME_LAST) == (ARRAYSIZE(linuxbcmerrormap) - 1));
|
|
|
|
osh->magic = OS_HANDLE_MAGIC;
|
|
atomic_set(&osh->malloced, 0);
|
|
osh->failed = 0;
|
|
osh->dbgmem_list = NULL;
|
|
spin_lock_init(&(osh->dbgmem_lock));
|
|
osh->pdev = pdev;
|
|
osh->pub.pkttag = pkttag;
|
|
osh->bustype = bustype;
|
|
|
|
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;
|
|
}
|
|
|
|
#if defined(CONFIG_DHD_USE_STATIC_BUF)
|
|
if (!bcm_static_buf) {
|
|
if (!(bcm_static_buf = (bcm_static_buf_t *)dhd_os_prealloc(osh, 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 NULL;
|
|
}
|
|
else
|
|
printk("alloc static buf at %x!\n", (unsigned int)bcm_static_buf);
|
|
|
|
|
|
sema_init(&bcm_static_buf->static_sem, 1);
|
|
|
|
bcm_static_buf->buf_ptr = (unsigned char *)bcm_static_buf + STATIC_BUF_SIZE;
|
|
}
|
|
|
|
if (!bcm_static_skb) {
|
|
int i;
|
|
void *skb_buff_ptr = 0;
|
|
bcm_static_skb = (bcm_static_pkt_t *)((char *)bcm_static_buf + 2048);
|
|
skb_buff_ptr = dhd_os_prealloc(osh, 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 NULL;
|
|
}
|
|
|
|
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 */
|
|
|
|
#ifdef BCMDBG_CTRACE
|
|
spin_lock_init(&osh->ctrace_lock);
|
|
INIT_LIST_HEAD(&osh->ctrace_list);
|
|
osh->ctrace_num = 0;
|
|
#endif /* BCMDBG_CTRACE */
|
|
|
|
spin_lock_init(&(osh->pktalloc_lock));
|
|
|
|
return osh;
|
|
}
|
|
|
|
void
|
|
osl_detach(osl_t *osh)
|
|
{
|
|
if (osh == 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
|
|
|
|
ASSERT(osh->magic == OS_HANDLE_MAGIC);
|
|
kfree(osh);
|
|
}
|
|
|
|
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;
|
|
|
|
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;
|
|
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
|
|
flags = (in_atomic() || irqs_disabled()) ? GFP_ATOMIC : GFP_KERNEL;
|
|
#else
|
|
flags = GFP_ATOMIC;
|
|
#endif
|
|
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;
|
|
}
|
|
|
|
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);
|
|
|
|
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->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 *nskb;
|
|
#ifdef BCMDBG_CTRACE
|
|
struct sk_buff *nskb1, *nskb2;
|
|
#endif
|
|
|
|
if (osh->pub.pkttag)
|
|
OSL_PKTTAG_CLEAR(pkt);
|
|
|
|
/* Increment the packet counter */
|
|
for (nskb = (struct sk_buff *)pkt; nskb; nskb = nskb->next) {
|
|
atomic_add(PKTISCHAINED(nskb) ? PKTCCNT(nskb) : 1, &osh->pktalloced);
|
|
|
|
#ifdef BCMDBG_CTRACE
|
|
for (nskb1 = nskb; nskb1 != NULL; nskb1 = nskb2) {
|
|
if (PKTISCHAINED(nskb1)) {
|
|
nskb2 = PKTCLINK(nskb1);
|
|
}
|
|
else
|
|
nskb2 = NULL;
|
|
|
|
ADD_CTRACE(osh, nskb1, file, line);
|
|
}
|
|
#endif /* BCMDBG_CTRACE */
|
|
}
|
|
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->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)
|
|
{
|
|
printk("%s: osh == NULL \n", __FUNCTION__);
|
|
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->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->tail = skb->data + 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->tail = skb->data + 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->tail = skb->data + 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 */
|
|
|
|
int osh_pktpadtailroom(osl_t *osh, void* p, int pad)
|
|
{
|
|
int err;
|
|
int ntail;
|
|
struct sk_buff* skb = (struct sk_buff*)p;
|
|
|
|
ntail = skb->data_len + pad - (skb->end - skb->tail);
|
|
if (likely(skb_cloned(skb) || ntail > 0)) {
|
|
err = pskb_expand_head(skb, 0, ntail, GFP_ATOMIC);
|
|
if (unlikely(err))
|
|
goto done;
|
|
}
|
|
|
|
err = skb_linearize(skb);
|
|
if (unlikely(err))
|
|
goto done;
|
|
|
|
memset(skb->data + skb->len, 0, pad);
|
|
|
|
done:
|
|
return err;
|
|
}
|
|
|
|
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)
|
|
{
|
|
int i = 0;
|
|
if ((size >= PAGE_SIZE)&&(size <= STATIC_BUF_SIZE))
|
|
{
|
|
down(&bcm_static_buf->static_sem);
|
|
|
|
for (i = 0; i < STATIC_BUF_MAX_NUM; i++)
|
|
{
|
|
if (bcm_static_buf->buf_use[i] == 0)
|
|
break;
|
|
}
|
|
|
|
if (i == STATIC_BUF_MAX_NUM)
|
|
{
|
|
up(&bcm_static_buf->static_sem);
|
|
printk("all static buff in use!\n");
|
|
goto original;
|
|
}
|
|
|
|
bcm_static_buf->buf_use[i] = 1;
|
|
up(&bcm_static_buf->static_sem);
|
|
|
|
bzero(bcm_static_buf->buf_ptr+STATIC_BUF_SIZE*i, size);
|
|
if (osh)
|
|
atomic_add(size, &osh->malloced);
|
|
|
|
return ((void *)(bcm_static_buf->buf_ptr+STATIC_BUF_SIZE*i));
|
|
}
|
|
}
|
|
original:
|
|
#endif /* CONFIG_DHD_USE_STATIC_BUF */
|
|
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
|
|
flags = (in_atomic() || irqs_disabled()) ? GFP_ATOMIC : GFP_KERNEL;
|
|
#else
|
|
flags = GFP_ATOMIC;
|
|
#endif
|
|
if ((addr = kmalloc(size, flags)) == NULL) {
|
|
if (osh)
|
|
osh->failed++;
|
|
return (NULL);
|
|
}
|
|
if (osh)
|
|
atomic_add(size, &osh->malloced);
|
|
|
|
return (addr);
|
|
}
|
|
|
|
void
|
|
osl_mfree(osl_t *osh, void *addr, uint size)
|
|
{
|
|
#ifdef CONFIG_DHD_USE_STATIC_BUF
|
|
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;
|
|
|
|
down(&bcm_static_buf->static_sem);
|
|
bcm_static_buf->buf_use[buf_idx] = 0;
|
|
up(&bcm_static_buf->static_sem);
|
|
|
|
if (osh) {
|
|
ASSERT(osh->magic == OS_HANDLE_MAGIC);
|
|
atomic_sub(size, &osh->malloced);
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
#endif /* CONFIG_DHD_USE_STATIC_BUF */
|
|
if (osh) {
|
|
ASSERT(osh->magic == OS_HANDLE_MAGIC);
|
|
atomic_sub(size, &osh->malloced);
|
|
}
|
|
kfree(addr);
|
|
}
|
|
|
|
uint
|
|
osl_malloced(osl_t *osh)
|
|
{
|
|
ASSERT((osh && (osh->magic == OS_HANDLE_MAGIC)));
|
|
return (atomic_read(&osh->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, ulong *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
|
|
va = pci_alloc_consistent(osh->pdev, size, (dma_addr_t*)pap);
|
|
#endif
|
|
return va;
|
|
}
|
|
|
|
void
|
|
osl_dma_free_consistent(osl_t *osh, void *va, uint size, ulong 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
|
|
}
|
|
|
|
uint 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(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->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)
|
|
{
|
|
return (atomic_read(&osh->pktalloced));
|
|
}
|
|
|
|
/* 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 */
|