#include <linux/kernel.h>
#include <linux/string.h>
-#include <linuxver.h>
+#include <linux/netdevice.h>
+#include <linux/pci.h>
#include <bcmdefs.h>
#include <bcmdevs.h>
#include <osl.h>
#include <sbhnddma.h>
#include <hnddma.h>
+#if defined(__mips__)
+#include <asm/addrspace.h>
+#endif
+
/* debug/trace */
#ifdef BCMDBG
#define DMA_ERROR(args) \
#define DI_INFO(dmah) ((dma_info_t *)dmah)
+#define R_SM(r) (*(r))
+#define W_SM(r, v) (*(r) = (v))
+
/* dma engine software state */
typedef struct dma_info {
- struct hnddma_pub hnddma; /* exported structure, don't use hnddma_t,
- * which could be const
- */
+ struct hnddma_pub hnddma; /* exported structure */
uint *msg_level; /* message level pointer */
char name[MAXNAMEL]; /* callers name for diag msgs */
static void _dma_fifoloopbackenable(dma_info_t *di);
static uint _dma_ctrlflags(dma_info_t *di, uint mask, uint flags);
static u8 dma_align_sizetobits(uint size);
-static void *dma_ringalloc(osl_t *osh, u32 boundary, uint size,
+static void *dma_ringalloc(struct osl_info *osh, u32 boundary, uint size,
u16 *alignbits, uint *alloced,
dmaaddr_t *descpa, osldma_t **dmah);
static bool dma32_txreset(dma_info_t *di);
static bool dma32_rxreset(dma_info_t *di);
static bool dma32_txsuspendedidle(dma_info_t *di);
-static int dma32_txfast(dma_info_t *di, void *p0, bool commit);
+static int dma32_txfast(dma_info_t *di, struct sk_buff *p0, bool commit);
static void *dma32_getnexttxp(dma_info_t *di, txd_range_t range);
static void *dma32_getnextrxp(dma_info_t *di, bool forceall);
static void dma32_txrotate(dma_info_t *di);
static bool dma32_rxstopped(dma_info_t *di);
static bool dma32_rxenabled(dma_info_t *di);
-static bool _dma32_addrext(osl_t *osh, dma32regs_t *dma32regs);
+static bool _dma32_addrext(struct osl_info *osh, dma32regs_t *dma32regs);
/* Prototypes for 64-bit routines */
static bool dma64_alloc(dma_info_t *di, uint direction);
static bool dma64_txreset(dma_info_t *di);
static bool dma64_rxreset(dma_info_t *di);
static bool dma64_txsuspendedidle(dma_info_t *di);
-static int dma64_txfast(dma_info_t *di, void *p0, bool commit);
+static int dma64_txfast(dma_info_t *di, struct sk_buff *p0, bool commit);
static int dma64_txunframed(dma_info_t *di, void *p0, uint len, bool commit);
static void *dma64_getpos(dma_info_t *di, bool direction);
static void *dma64_getnexttxp(dma_info_t *di, txd_range_t range);
static bool dma64_txstopped(dma_info_t *di);
static bool dma64_rxstopped(dma_info_t *di);
static bool dma64_rxenabled(dma_info_t *di);
-static bool _dma64_addrext(osl_t *osh, dma64regs_t *dma64regs);
+static bool _dma64_addrext(struct osl_info *osh, dma64regs_t *dma64regs);
static inline u32 parity32(u32 data);
39
};
-hnddma_t *dma_attach(osl_t *osh, char *name, si_t *sih, void *dmaregstx,
- void *dmaregsrx, uint ntxd, uint nrxd, uint rxbufsize,
- int rxextheadroom, uint nrxpost, uint rxoffset,
- uint *msg_level)
+struct hnddma_pub *dma_attach(struct osl_info *osh, char *name, si_t *sih,
+ void *dmaregstx, void *dmaregsrx, uint ntxd,
+ uint nrxd, uint rxbufsize, int rxextheadroom,
+ uint nrxpost, uint rxoffset, uint *msg_level)
{
dma_info_t *di;
uint size;
}
}
- return (hnddma_t *) di;
+ return (struct hnddma_pub *) di;
fail:
_dma_detach(di);
}
}
-static bool _dma32_addrext(osl_t *osh, dma32regs_t *dma32regs)
+static bool _dma32_addrext(struct osl_info *osh, dma32regs_t *dma32regs)
{
u32 w;
/* clear rx descriptor ring */
if (DMA64_ENAB(di) && DMA64_MODE(di)) {
- BZERO_SM((void *)di->rxd64,
+ memset((void *)di->rxd64, '\0',
(di->nrxd * sizeof(dma64dd_t)));
/* DMA engine with out alignment requirement requires table to be inited
if (di->aligndesc_4k)
_dma_ddtable_init(di, DMA_RX, di->rxdpa);
} else if (DMA32_ENAB(di)) {
- BZERO_SM((void *)di->rxd32,
+ memset((void *)di->rxd32, '\0',
(di->nrxd * sizeof(dma32dd_t)));
_dma_rxenable(di);
_dma_ddtable_init(di, DMA_RX, di->rxdpa);
*/
static void *BCMFASTPATH _dma_rx(dma_info_t *di)
{
- void *p, *head, *tail;
+ struct sk_buff *p, *head, *tail;
uint len;
uint pkt_len;
int resid = 0;
if (head == NULL)
return NULL;
- len = ltoh16(*(u16 *) (PKTDATA(head)));
+ len = ltoh16(*(u16 *) (head->data));
DMA_TRACE(("%s: dma_rx len %d\n", di->name, len));
#if defined(__mips__)
+#define OSL_UNCACHED(va) ((void *)KSEG1ADDR((va)))
if (!len) {
- while (!(len = *(u16 *) OSL_UNCACHED(PKTDATA(head))))
+ while (!(len = *(u16 *) OSL_UNCACHED(head->data)))
udelay(1);
- *(u16 *) PKTDATA(head) = htol16((u16) len);
+ *(u16 *) (head->data) = htol16((u16) len);
}
#endif /* defined(__mips__) */
/* set actual length */
pkt_len = min((di->rxoffset + len), di->rxbufsize);
- PKTSETLEN(head, pkt_len);
+ __skb_trim(head, pkt_len);
resid = len - (di->rxbufsize - di->rxoffset);
/* check for single or multi-buffer rx */
if (resid > 0) {
tail = head;
while ((resid > 0) && (p = _dma_getnextrxp(di, false))) {
- PKTSETNEXT(tail, p);
+ tail->next = p;
pkt_len = min(resid, (int)di->rxbufsize);
- PKTSETLEN(p, pkt_len);
+ __skb_trim(p, pkt_len);
tail = p;
resid -= di->rxbufsize;
if ((di->hnddma.dmactrlflags & DMA_CTRL_RXMULTI) == 0) {
DMA_ERROR(("%s: dma_rx: bad frame length (%d)\n",
di->name, len));
- PKTFREE(di->osh, head, false);
+ pkt_buf_free_skb(di->osh, head, false);
di->hnddma.rxgiants++;
goto next_frame;
}
*/
static bool BCMFASTPATH _dma_rxfill(dma_info_t *di)
{
- void *p;
+ struct sk_buff *p;
u16 rxin, rxout;
u32 flags = 0;
uint n;
size to be allocated
*/
- p = osl_pktget(di->osh, di->rxbufsize + extra_offset);
+ p = pkt_buf_get_skb(di->osh, di->rxbufsize + extra_offset);
if (p == NULL) {
DMA_ERROR(("%s: dma_rxfill: out of rxbufs\n",
}
/* reserve an extra headroom, if applicable */
if (extra_offset)
- PKTPULL(p, extra_offset);
+ skb_pull(p, extra_offset);
/* Do a cached write instead of uncached write since DMA_MAP
* will flush the cache.
*/
- *(u32 *) (PKTDATA(p)) = 0;
+ *(u32 *) (p->data) = 0;
if (DMASGLIST_ENAB)
- bzero(&di->rxp_dmah[rxout], sizeof(hnddma_seg_map_t));
+ memset(&di->rxp_dmah[rxout], 0,
+ sizeof(hnddma_seg_map_t));
- pa = DMA_MAP(di->osh, PKTDATA(p),
+ pa = DMA_MAP(di->osh, p->data,
di->rxbufsize, DMA_RX, p, &di->rxp_dmah[rxout]);
ASSERT(IS_ALIGNED(PHYSADDRLO(pa), 4));
{
void *p;
- /* "unused local" warning suppression for OSLs that
- * define PKTFREE() without using the di->osh arg
- */
- di = di;
-
DMA_TRACE(("%s: dma_rxreclaim\n", di->name));
while ((p = _dma_getnextrxp(di, true)))
- PKTFREE(di->osh, p, false);
+ pkt_buf_free_skb(di->osh, p, false);
}
static void *BCMFASTPATH _dma_getnextrxp(dma_info_t *di, bool forceall)
return 0;
}
-void dma_txpioloopback(osl_t *osh, dma32regs_t *regs)
+void dma_txpioloopback(struct osl_info *osh, dma32regs_t *regs)
{
OR_REG(osh, ®s->control, XC_LE);
}
* descriptor ring size aligned location. This will ensure that the ring will
* not cross page boundary
*/
-static void *dma_ringalloc(osl_t *osh, u32 boundary, uint size,
+static void *dma_ringalloc(struct osl_info *osh, u32 boundary, uint size,
u16 *alignbits, uint *alloced,
dmaaddr_t *descpa, osldma_t **dmah)
{
di->hnddma.txavail = di->ntxd - 1;
/* clear tx descriptor ring */
- BZERO_SM((void *)di->txd32, (di->ntxd * sizeof(dma32dd_t)));
+ memset((void *)di->txd32, '\0', (di->ntxd * sizeof(dma32dd_t)));
if ((di->hnddma.dmactrlflags & DMA_CTRL_PEN) == 0)
control |= XC_PD;
return;
while ((p = dma32_getnexttxp(di, range)))
- PKTFREE(di->osh, p, true);
+ pkt_buf_free_skb(di->osh, p, true);
}
static bool dma32_txstopped(dma_info_t *di)
* WARNING: call must check the return value for error.
* the error(toss frames) could be fatal and cause many subsequent hard to debug problems
*/
-static int dma32_txfast(dma_info_t *di, void *p0, bool commit)
+static int dma32_txfast(dma_info_t *di, struct sk_buff *p0, bool commit)
{
- void *p, *next;
+ struct sk_buff *p, *next;
unsigned char *data;
uint len;
u16 txout;
uint nsegs, j;
hnddma_seg_map_t *map;
- data = PKTDATA(p);
- len = PKTLEN(p);
+ data = p->data;
+ len = p->len;
#ifdef BCM_DMAPAD
len += PKTDMAPAD(di->osh, p);
#endif
- next = PKTNEXT(p);
+ next = p->next;
/* return nonzero if out of tx descriptors */
if (NEXTTXD(txout) == di->txin)
continue;
if (DMASGLIST_ENAB)
- bzero(&di->txp_dmah[txout], sizeof(hnddma_seg_map_t));
+ memset(&di->txp_dmah[txout], 0,
+ sizeof(hnddma_seg_map_t));
/* get physical address of buffer start */
pa = DMA_MAP(di->osh, data, len, DMA_TX, p,
outoftxd:
DMA_ERROR(("%s: dma_txfast: out of txds\n", di->name));
- PKTFREE(di->osh, p0, true);
+ pkt_buf_free_skb(di->osh, p0, true);
di->hnddma.txavail = 0;
di->hnddma.txnobuf++;
return -1;
if (DMASGLIST_ENAB) {
bcopy(&di->txp_dmah[old], &di->txp_dmah[new],
sizeof(hnddma_seg_map_t));
- bzero(&di->txp_dmah[old], sizeof(hnddma_seg_map_t));
+ memset(&di->txp_dmah[old], 0, sizeof(hnddma_seg_map_t));
}
di->txp[old] = NULL;
di->hnddma.txavail = di->ntxd - 1;
/* clear tx descriptor ring */
- BZERO_SM((void *)di->txd64, (di->ntxd * sizeof(dma64dd_t)));
+ memset((void *)di->txd64, '\0', (di->ntxd * sizeof(dma64dd_t)));
/* DMA engine with out alignment requirement requires table to be inited
* before enabling the engine
while ((p = dma64_getnexttxp(di, range))) {
/* For unframed data, we don't have any packets to free */
if (!(di->hnddma.dmactrlflags & DMA_CTRL_UNFRAMED))
- PKTFREE(di->osh, p, true);
+ pkt_buf_free_skb(di->osh, p, true);
}
}
* WARNING: call must check the return value for error.
* the error(toss frames) could be fatal and cause many subsequent hard to debug problems
*/
-static int BCMFASTPATH dma64_txfast(dma_info_t *di, void *p0, bool commit)
+static int BCMFASTPATH dma64_txfast(dma_info_t *di, struct sk_buff *p0,
+ bool commit)
{
- void *p, *next;
+ struct sk_buff *p, *next;
unsigned char *data;
uint len;
u16 txout;
uint nsegs, j;
hnddma_seg_map_t *map;
- data = PKTDATA(p);
- len = PKTLEN(p);
+ data = p->data;
+ len = p->len;
#ifdef BCM_DMAPAD
len += PKTDMAPAD(di->osh, p);
#endif /* BCM_DMAPAD */
- next = PKTNEXT(p);
+ next = p->next;
/* return nonzero if out of tx descriptors */
if (NEXTTXD(txout) == di->txin)
/* get physical address of buffer start */
if (DMASGLIST_ENAB)
- bzero(&di->txp_dmah[txout], sizeof(hnddma_seg_map_t));
+ memset(&di->txp_dmah[txout], 0,
+ sizeof(hnddma_seg_map_t));
pa = DMA_MAP(di->osh, data, len, DMA_TX, p,
&di->txp_dmah[txout]);
outoftxd:
DMA_ERROR(("%s: dma_txfast: out of txds !!!\n", di->name));
- PKTFREE(di->osh, p0, true);
+ pkt_buf_free_skb(di->osh, p0, true);
di->hnddma.txavail = 0;
di->hnddma.txnobuf++;
return -1;
return rxp;
}
-static bool _dma64_addrext(osl_t *osh, dma64regs_t * dma64regs)
+static bool _dma64_addrext(struct osl_info *osh, dma64regs_t * dma64regs)
{
u32 w;
OR_REG(osh, &dma64regs->control, D64_XC_AE);
if (DMASGLIST_ENAB) {
bcopy(&di->txp_dmah[old], &di->txp_dmah[new],
sizeof(hnddma_seg_map_t));
- bzero(&di->txp_dmah[old], sizeof(hnddma_seg_map_t));
+ memset(&di->txp_dmah[old], 0, sizeof(hnddma_seg_map_t));
}
di->txp[old] = NULL;
uint dma_addrwidth(si_t *sih, void *dmaregs)
{
dma32regs_t *dma32regs;
- osl_t *osh;
+ struct osl_info *osh;
osh = si_osh(sih);
/* backplane are 64-bit capable */
if (si_backplane64(sih))
/* If bus is System Backplane or PCIE then we can access 64-bits */
- if ((BUSTYPE(sih->bustype) == SI_BUS) ||
- ((BUSTYPE(sih->bustype) == PCI_BUS) &&
+ if ((sih->bustype == SI_BUS) ||
+ ((sih->bustype == PCI_BUS) &&
(sih->buscoretype == PCIE_CORE_ID)))
return DMADDRWIDTH_64;
dma32regs = (dma32regs_t *) dmaregs;
/* For System Backplane, PCIE bus or addrext feature, 32-bits ok */
- if ((BUSTYPE(sih->bustype) == SI_BUS) ||
- ((BUSTYPE(sih->bustype) == PCI_BUS)
+ if ((sih->bustype == SI_BUS) ||
+ ((sih->bustype == PCI_BUS)
&& sih->buscoretype == PCIE_CORE_ID)
|| (_dma32_addrext(osh, dma32regs)))
return DMADDRWIDTH_32;
projects / mv-sheeva.git / blobdiff