static void
rpc_dbus_state_change(void *handle, int state)
{
rpc_tp_info_t *rpcb = handle;
if (rpcb == NULL)
return;
/* FIX: DBUS is down, need to do something? */
if (state == DBUS_STATE_DOWN) {
RPC_TP_ERR(("%s: DBUS is down\n", __FUNCTION__));
}
}
rpc_tp_info_t *
BCMATTACHFN(bcm_rpc_tp_attach)(osl_t * osh, void *bus)
{
rpc_tp_info_t *rpc_th;
hndrte_dev_t *ctx = (hndrte_dev_t *)bus;
rpc_th = (rpc_tp_info_t *)MALLOC(osh, sizeof(rpc_tp_info_t));
if (rpc_th == NULL) {
RPC_TP_ERR(("%s: rpc_tp_info_t malloc failed\n", __FUNCTION__));
return NULL;
}
memset(rpc_th, 0, sizeof(rpc_tp_info_t));
rpc_th->osh = osh;
rpc_th->ctx = ctx;
/* Init for flow control */
rpc_th->tx_flowctl = FALSE;
rpc_th->tx_q_flowctl_segcnt = 0;
rpc_th->tx_flowctlq = (struct spktq *)MALLOC(osh, sizeof(struct spktq));
if (rpc_th->tx_flowctlq == NULL) {
RPC_TP_ERR(("%s: txflowctlq malloc failed\n", __FUNCTION__));
MFREE(rpc_th->osh, rpc_th, sizeof(rpc_tp_info_t));
return NULL;
}
pktqinit(rpc_th->tx_flowctlq, BCM_RPC_TP_Q_MAX);
rpc_th->tx_q_flowctl_hiwm = BCM_RPC_TP_FLOWCTL_QWM_HIGH;
rpc_th->tx_q_flowctl_lowm = BCM_RPC_TP_FLOWCTL_QWM_LOW;
rpc_th->tp_dngl_agg_lazy = 0;
rpc_th->tp_dngl_agg_sframes_limit = BCM_RPC_TP_DNGL_AGG_MAX_SFRAME;
rpc_th->tp_dngl_agg_bytes_max = BCM_RPC_TP_DNGL_AGG_MAX_BYTE;
#ifdef BCMUSBDEV_EP_FOR_RPCRETURN
rpc_th->has_2nd_bulk_in_ep = 1;
#endif /* BCMUSBDEV_EP_FOR_RPCRETURN */
return rpc_th;
}
static int
bcm_rpc_tp_buf_send_internal(rpc_tp_info_t * rpcb, rpc_buf_t *b, uint32 tx_ep_index)
{
int err;
struct lbuf *lb = (struct lbuf *)b;
hndrte_dev_t *chained = rpcb->ctx->chained;
uint pktlen;
ASSERT(chained);
ASSERT(b != NULL);
pktlen = bcm_rpc_buf_totlen_get(rpcb, b);
if (pktlen == BCM_RPC_TP_DNGL_TOTLEN_BAD) {
RPC_TP_AGG(("%s, pkt is %d bytes, padding %d bytes\n", __FUNCTION__,
BCM_RPC_TP_DNGL_TOTLEN_BAD, BCM_RPC_TP_DNGL_TOTLEN_BAD_PAD));
bcm_rpc_tp_buf_pad(rpcb, b, BCM_RPC_TP_DNGL_TOTLEN_BAD_PAD);
} else if (pktlen % BCM_RPC_TP_DNGL_BULKEP_MPS == 0) {
RPC_TP_AGG(("%s, tp pkt is multiple of %d bytes, padding %d bytes\n",
__FUNCTION__,
BCM_RPC_TP_DNGL_BULKEP_MPS, BCM_RPC_TP_DNGL_ZLP_PAD));
bcm_rpc_tp_buf_pad(rpcb, b, BCM_RPC_TP_DNGL_ZLP_PAD);
}
lb = PKTTONATIVE(rpcb->osh, b);
/* send through data endpoint */
if ((err = chained->funcs->xmit(rpcb->ctx, chained, lb)) != 0) {
RPC_TP_ERR(("%s: xmit failed; free pkt %p\n", __FUNCTION__, lb));
rpcb->txerr_cnt++;
lb_free(lb);
} else {
rpcb->tx_cnt++;
/* give pkt ownership to usb driver, decrement the counter */
rpcb->buf_cnt_inuse -= pktsegcnt(rpcb->osh, b);
}
return err;
}
int
bcm_rpc_tp_send_callreturn(rpc_tp_info_t * rpc_th, rpc_buf_t *b)
{
int err, pktlen;
struct lbuf *lb;
hndrte_dev_t *chained = rpc_th->ctx->chained;
ASSERT(chained);
/* Add the TP encapsulation */
bcm_rpc_tp_tx_encap(rpc_th, b);
/* Pad if pkt size is a multiple of MPS */
pktlen = bcm_rpc_buf_totlen_get(rpc_th, b);
if (pktlen % BCM_RPC_TP_DNGL_CTRLEP_MPS == 0) {
RPC_TP_AGG(("%s, tp pkt is multiple of %d bytes, padding %d bytes\n",
__FUNCTION__, BCM_RPC_TP_DNGL_CTRLEP_MPS, BCM_RPC_TP_DNGL_ZLP_PAD));
bcm_rpc_tp_buf_pad(rpc_th, b, BCM_RPC_TP_DNGL_ZLP_PAD);
}
lb = PKTTONATIVE(rpc_th->osh, b);
if (rpc_th->has_2nd_bulk_in_ep) {
err = chained->funcs->xmit2(rpc_th->ctx, chained, lb, USBDEV_BULK_IN_EP2);
} else {
err = chained->funcs->xmit_ctl(rpc_th->ctx, chained, lb);
}
/* send through control endpoint */
if (err != 0) {
RPC_TP_ERR(("%s: xmit failed; free pkt %p\n", __FUNCTION__, lb));
rpc_th->txerr_cnt++;
lb_free(lb);
} else {
rpc_th->tx_cnt++;
/* give pkt ownership to usb driver, decrement the counter */
rpc_th->buf_cnt_inuse -= pktsegcnt(rpc_th->osh, b);
}
return err;
}
static void
bcm_rpc_tp_buf_send_enq(rpc_tp_info_t * rpc_th, rpc_buf_t *b)
{
pktenq(rpc_th->tx_flowctlq, (void*)b);
rpc_th->tx_q_flowctl_segcnt += pktsegcnt(rpc_th->osh, b);
/* if hiwm is reached, throttle wldriver
* TODO, count more(average 3?) if agg is ON
*/
if (rpc_th->tx_q_flowctl_segcnt > rpc_th->tx_q_flowctl_hiwm) {
rpc_th->tx_q_flowctl_highwm_cnt++;
RPC_TP_ERR(("bcm_rpc_tp_buf_send_enq, wm hit high!\n"));
rpc_th->txflowctl_cb(rpc_th->txflowctl_ctx, ON);
}
/* If tx_flowctlq gets full, set a bigger BCM_RPC_TP_Q_MAX */
ASSERT(!pktq_full(rpc_th->tx_flowctlq));
}
static void
rpc_dbus_ctl_complete(void *handle, int type, int status)
{
rpc_tp_info_t *rpcb = (rpc_tp_info_t *)handle;
void *pkt;
RPC_TP_LOCK(rpcb);
pkt = rpcb->rx_rtn_pkt;
rpcb->rx_rtn_pkt = NULL;
RPC_TP_UNLOCK(rpcb);
if (!status) {
bcm_rpc_buf_pull(rpcb, pkt, BCM_RPC_TP_ENCAP_LEN);
(rpcb->rx_pkt)(rpcb->rx_context, pkt);
} else {
RPC_TP_ERR(("%s: no rpc rx ctl, dropping 0x%x\n", __FUNCTION__, status));
bcm_rpc_tp_pktfree(rpcb, pkt, TRUE);
}
}
static int
bcm_rpc_tp_dngl_agg_release(rpc_tp_info_t * rpcb)
{
int err;
rpc_buf_t *b;
if (rpcb->tp_dngl_agg_p == NULL) { /* no aggregation formed */
return 0;
}
RPC_TP_AGG(("%s, send %d, sframe %d\n", __FUNCTION__,
rpcb->tp_dngl_agg_bytes, rpcb->tp_dngl_agg_sframes));
b = rpcb->tp_dngl_agg_p;
rpcb->tp_dngl_agg_cnt_chain++;
rpcb->tp_dngl_agg_cnt_sf += rpcb->tp_dngl_agg_sframes;
rpcb->tp_dngl_agg_cnt_bytes += rpcb->tp_dngl_agg_bytes;
if (rpcb->tp_dngl_agg_sframes == 1)
rpcb->tp_dngl_agg_cnt_noagg++;
bcm_rpc_tp_dngl_agg_initstate(rpcb);
rpcb->tp_dngl_agg_txpending++;
if (rpcb->tx_flowctl) {
bcm_rpc_tp_buf_send_enq(rpcb, b);
err = 0;
} else {
err = bcm_rpc_tp_buf_send_internal(rpcb, b, USBDEV_BULK_IN_EP1);
}
if (err != 0) {
RPC_TP_ERR(("bcm_rpc_tp_dngl_agg_release: send err!!!\n"));
/* ASSERT(0) */
}
return err;
}
void
bcm_rpc_tp_rx_from_dnglbus(rpc_tp_info_t *rpc_th, struct lbuf *lb)
{
void *orig_p, *p;
void *rpc_p, *rpc_prev;
uint pktlen, tp_len, iter = 0;
osl_t *osh;
bool dbg_agg;
uint dbg_data[16], i; /* must fit host agg limit BCM_RPC_TP_HOST_AGG_MAX_SFRAME+1 */
dbg_agg = FALSE;
rpc_th->rx_cnt++;
if (rpc_th->rx_pkt == NULL) {
RPC_TP_ERR(("%s: no rpc rx fn, dropping\n", __FUNCTION__));
rpc_th->rxdrop_cnt++;
lb_free(lb);
return;
}
orig_p = PKTFRMNATIVE(rpc_th->osh, lb);
osh = rpc_th->osh;
/* take ownership of the dnglbus packet chain
* since it will be freed by bcm_rpc_tp_buf_free()
*/
rpc_th->buf_cnt_inuse += pktsegcnt(rpc_th->osh, orig_p);
dbg_data[0] = pktsegcnt(rpc_th->osh, orig_p);
pktlen = PKTLEN(osh, orig_p);
p = orig_p;
/* while we have more data in the TP frame's packet chain,
* create a packet chain(could be cloned) for the next RPC frame
* then give it away to high layer for process(buffer not freed)
*/
while (p != NULL) {
iter++;
/* read TP_HDR(len of rpc frame) and pull the data pointer past the length word */
if (pktlen >= BCM_RPC_TP_ENCAP_LEN) {
ASSERT(((uint)PKTDATA(osh, p) & 0x3) == 0); /* ensure aligned word read */
tp_len = ltoh32(*(uint32*)PKTDATA(osh, p));
PKTPULL(osh, p, BCM_RPC_TP_ENCAP_LEN);
pktlen -= BCM_RPC_TP_ENCAP_LEN;
} else {
/* error case: less data than the encapsulation size
* treat as an empty tp buffer, at end of current buffer
*/
tp_len = 0;
pktlen = 0;
rpc_th->tp_dngl_deagg_cnt_badsflen++; /* bad sf len */
}
/* if TP header finished a buffer(rpc header in next chained buffer), open next */
if (pktlen == 0) {
void *next_p = PKTNEXT(osh, p);
PKTSETNEXT(osh, p, NULL);
rpc_th->buf_cnt_inuse--;
PKTFREE(osh, p, FALSE);
p = next_p;
if (p)
pktlen = PKTLEN(osh, p);
}
dbg_data[iter] = tp_len;
if (tp_len < pktlen || dbg_agg) {
dbg_agg = TRUE;
RPC_TP_DEAGG(("DEAGG: [%d] p %p data %p pktlen %d tp_len %d\n",
iter, p, PKTDATA(osh, p), pktlen, tp_len));
rpc_th->tp_dngl_deagg_cnt_sf++;
rpc_th->tp_dngl_deagg_cnt_bytes += tp_len;
}
/* empty TP buffer (special case: use tp_len to pad for some USB pktsize bugs) */
if (tp_len == 0) {
rpc_th->tp_dngl_deagg_cnt_pass++;
continue;
} else if (tp_len > 10000 ) { /* something is wrong */
/* print out msgs according to value of p -- in case it is NULL */
if (p != NULL) {
RPC_TP_ERR(("DEAGG: iter %d, p(%p data %p pktlen %d)\n",
iter, p, PKTDATA(osh, p), PKTLEN(osh, p)));
} else {
RPC_TP_ERR(("DEAGG: iter %d, p is NULL", iter));
}
}
/* ========= For this TP subframe, find the end, build a chain, sendup ========= */
/* RPC frame packet chain starts with this packet */
rpc_prev = NULL;
rpc_p = p;
ASSERT(p != NULL);
/* find the last frag in this rpc chain */
while ((tp_len >= pktlen) && p) {
if (dbg_agg)
RPC_TP_DEAGG(("DEAGG: tp_len %d consumes p(%p pktlen %d)\n", tp_len,
p, pktlen));
rpc_prev = p;
p = PKTNEXT(osh, p);
tp_len -= pktlen;
if (p != NULL) {
pktlen = PKTLEN(osh, p);
} else {
if (tp_len != 0) {
uint totlen, seg;
totlen = pkttotlen(osh, rpc_p);
seg = pktsegcnt(rpc_th->osh, rpc_p);
RPC_TP_ERR(("DEAGG, toss[%d], orig_p %p segcnt %d",
iter, orig_p, dbg_data[0]));
RPC_TP_ERR(("DEAGG,rpc_p %p totlen %d pktl %d tp_len %d\n",
rpc_p, totlen, pktlen, tp_len));
for (i = 1; i <= iter; i++)
RPC_TP_ERR(("tplen[%d] = %d ", i, dbg_data[i]));
RPC_TP_ERR(("\n"));
p = rpc_p;
while (p != NULL) {
RPC_TP_ERR(("this seg len %d\n", PKTLEN(osh, p)));
p = PKTNEXT(osh, p);
}
rpc_th->buf_cnt_inuse -= seg;
PKTFREE(osh, rpc_p, FALSE);
rpc_th->tp_dngl_deagg_cnt_badfmt++;
/* big hammer to recover USB
* extern void dngl_reboot(void); dngl_reboot();
*/
goto end;
}
pktlen = 0;
break;
}
}
/* fix up the last frag */
if (tp_len == 0) {
/* if the whole RPC buffer chain ended at the end of the prev TP buffer,
* end the RPC buffer chain. we are done
*/
if (dbg_agg)
RPC_TP_DEAGG(("DEAGG: END rpc chain p %p len %d\n\n", rpc_prev,
pktlen));
PKTSETNEXT(osh, rpc_prev, NULL);
if (iter > 1) {
rpc_th->tp_dngl_deagg_cnt_chain++;
RPC_TP_DEAGG(("this frag %d totlen %d\n", pktlen,
pkttotlen(osh, orig_p)));
}
} else {
/* if pktlen has more bytes than tp_len, another tp frame must follow
* create a clone of the sub-range of the current TP buffer covered
* by the RPC buffer, attach to the end of the RPC buffer chain
* (cut off the original chain link)
* continue chain looping(p != NULL)
*/
void *new_p;
ASSERT(p != NULL);
RPC_TP_DEAGG(("DEAGG: cloning %d bytes out of p(%p data %p) len %d\n",
tp_len, p, PKTDATA(osh, p), pktlen));
new_p = osl_pktclone(osh, p, 0, tp_len);
rpc_th->buf_cnt_inuse++;
rpc_th->tp_dngl_deagg_cnt_clone++;
RPC_TP_DEAGG(("DEAGG: after clone, newp(%p data %p pktlen %d)\n",
new_p, PKTDATA(osh, new_p), PKTLEN(osh, new_p)));
if (rpc_prev) {
RPC_TP_DEAGG(("DEAGG: chaining: %p->%p(clone)\n", rpc_prev,
new_p));
PKTSETNEXT(osh, rpc_prev, new_p);
} else {
RPC_TP_DEAGG(("DEAGG: clone %p is a complete rpc pkt\n", new_p));
rpc_p = new_p;
}
PKTPULL(osh, p, tp_len);
pktlen -= tp_len;
RPC_TP_DEAGG(("DEAGG: remainder packet p %p data %p pktlen %d\n",
p, PKTDATA(osh, p), PKTLEN(osh, p)));
}
/* !! send up */
(rpc_th->rx_pkt)(rpc_th->rx_context, rpc_p);
}
end:
ASSERT(p == NULL);
}
static void BCMFASTPATH
bcm_rpc_tp_pktfree(rpc_tp_info_t * rpcb, rpc_buf_t *b, bool send)
{
uint32 free_cnt = 0;
#if defined(NDIS)
struct lbuf *lb = (struct lbuf*)b;
struct lbuf *next;
ASSERT(rpcb);
ASSERT(lb != NULL);
do {
next = lb->next;
lb->next = NULL;
ASSERT(lb->p == NULL);
shared_lb_put(rpcb->sh, lb->l, lb);
free_cnt++;
lb = next;
} while (lb);
#else
struct sk_buff *skb = (struct sk_buff*)b, *next;
#if defined(CTFPOOL)
next = skb;
while (next != NULL) {
next = next->next;
free_cnt++;
}
PKTFREE(rpcb->osh, skb, FALSE);
#else
while (skb) {
next = skb->next;
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);
}
skb = next;
free_cnt++;
}
#endif /* defined(CTFPOOL) */
RPC_TP_LOCK(rpcb);
rpcb->buf_cnt_inuse -= free_cnt;
if (rpcb->rxflowctrl && (rpcb->buf_cnt_inuse < RPCRX_WM_LO)) {
rpcb->rxflowctrl = FALSE;
RPC_TP_ERR(("%s, rxflowctrl change to %d\n", __FUNCTION__, rpcb->rxflowctrl));
dbus_flowctrl_rx(rpcb->bus, FALSE);
}
RPC_TP_UNLOCK(rpcb);
#endif /* NDIS */
}
/* internal pkt allocation, no BCM_RPC_TP_ENCAP_LEN */
static rpc_buf_t *
bcm_rpc_tp_pktget(rpc_tp_info_t * rpcb, int len, bool send)
{
rpc_buf_t* b;
#if defined(NDIS)
struct lbuf *lb;
if (len > LBDATASZ)
return (NULL);
if (send)
lb = shared_lb_get(rpcb->sh, &rpcb->sh->txfree);
else
lb = shared_lb_get(rpcb->sh, &rpcb->sh->rxfree);
if (lb != NULL)
lb->len = len;
b = (rpc_buf_t*)lb;
#else
struct sk_buff *skb;
#if defined(CTFPOOL)
skb = PKTGET(rpcb->osh, len, FALSE);
#else
if ((skb = dev_alloc_skb(len))) {
skb_put(skb, len);
skb->priority = 0;
}
#endif /* defined(CTFPOOL) */
b = (rpc_buf_t*)skb;
if (b != NULL) {
#ifdef CTFMAP
/* Clear the ctf buf flag to allow full dma map */
PKTCLRCTF(rpcb->osh, skb);
CTFMAPPTR(rpcb->osh, skb) = NULL;
#endif /* CTFMAP */
RPC_TP_LOCK(rpcb);
rpcb->bufalloc++;
if (!rpcb->rxflowctrl && (rpcb->buf_cnt_inuse >= RPCRX_WM_HI)) {
rpcb->rxflowctrl = TRUE;
RPC_TP_ERR(("%s, rxflowctrl change to %d\n", __FUNCTION__,
rpcb->rxflowctrl));
dbus_flowctrl_rx(rpcb->bus, TRUE);
}
rpcb->buf_cnt_inuse++;
if (rpcb->buf_cnt_inuse > (int)rpcb->buf_cnt_max)
rpcb->buf_cnt_max = rpcb->buf_cnt_inuse;
RPC_TP_UNLOCK(rpcb);
} else {
printf("%s: buf alloc failed buf_cnt_inuse %d rxflowctrl:%d\n",
__FUNCTION__, rpcb->buf_cnt_inuse, rpcb->rxflowctrl);
ASSERT(0);
}
#endif /* NDIS */
return b;
}
rpc_tp_info_t *
bcm_rpc_tp_attach(osl_t * osh, shared_info_t *shared, void *bus)
#endif
{
rpc_tp_info_t *rpcb;
dbus_pub_t *dbus = NULL;
dbus_attrib_t attrib;
dbus_config_t config;
#if defined(linux)
void *shared = NULL;
#endif /* linux */
rpcb = (rpc_tp_info_t*)MALLOC(osh, sizeof(rpc_tp_info_t));
if (rpcb == NULL) {
printf("%s: rpc_tp_info_t malloc failed\n", __FUNCTION__);
return NULL;
}
memset(rpcb, 0, sizeof(rpc_tp_info_t));
bcm_rpc_tp_tx_agg_initstate(rpcb);
#if defined(NDIS)
NdisAllocateSpinLock(&rpcb->lock);
#else
spin_lock_init(&rpcb->lock);
#endif
rpcb->osh = osh;
/* FIX: Need to determine rx size and pass it here */
dbus = (struct dbus_pub *)dbus_attach(osh, DBUS_RX_BUFFER_SIZE_RPC, BCM_RPC_TP_DBUS_NRXQ,
BCM_RPC_TP_DBUS_NTXQ, rpcb /* info */, &rpc_dbus_cbs, &dbus_extdl, shared);
if (dbus == NULL) {
printf("%s: dbus_attach failed\n", __FUNCTION__);
goto error;
}
rpcb->bus = (struct dbus_pub *)dbus;
dbus_get_attrib(dbus, &attrib);
rpcb->has_2nd_bulk_in_ep = attrib.has_2nd_bulk_in_ep;
rpcb->bus_mtu = attrib.mtu;
rpcb->bus_txdepth = BCM_RPC_TP_DBUS_NTXQ;
config.rxctl_deferrespok = TRUE;
dbus_set_config(dbus, &config);
rpcb->tp_tx_agg_sframes_limit = BCM_RPC_TP_HOST_AGG_MAX_SFRAME;
rpcb->tp_tx_agg_bytes_max = BCM_RPC_TP_HOST_AGG_MAX_BYTE;
#if defined(NDIS)
rpcb->sh = shared;
#endif /* NDIS */
/* Bring DBUS up right away so RPC can start receiving */
if (dbus_up(dbus)) {
RPC_TP_ERR(("%s: dbus_up failed\n", __FUNCTION__));
goto error;
}
return rpcb;
error:
if (rpcb)
bcm_rpc_tp_detach(rpcb);
return NULL;
}
static void BCMFASTPATH
rpc_dbus_recv_buf(void *handle, uint8 *buf, int len)
{
rpc_tp_info_t *rpcb = handle;
void *pkt;
uint32 rpc_len;
uint frag;
uint agglen;
if ((rpcb == NULL) || (buf == NULL))
return;
frag = rpcb->tp_host_deagg_cnt_sf;
agglen = len;
/* TP pkt should have more than encapsulation header */
if (len <= BCM_RPC_TP_ENCAP_LEN) {
RPC_TP_ERR(("%s: wrong len %d\n", __FUNCTION__, len));
goto error;
}
while (len > BCM_RPC_TP_ENCAP_LEN) {
rpc_len = ltoh32_ua(buf);
if (rpc_len > (uint32)(len - BCM_RPC_TP_ENCAP_LEN)) {
rpcb->tp_host_deagg_cnt_badsflen++;
return;
}
/* RPC_BUFFER_RX: allocate */
#if defined(BCM_RPC_ROC)
if ((pkt = PKTGET(rpcb->osh, rpc_len, FALSE)) == NULL) {
#else
if ((pkt = bcm_rpc_tp_pktget(rpcb, rpc_len, FALSE)) == NULL) {
#endif
printf("%s: bcm_rpc_tp_pktget failed (len %d)\n", __FUNCTION__, len);
goto error;
}
/* RPC_BUFFER_RX: BYTE_COPY from dbus buffer */
bcopy(buf + BCM_RPC_TP_ENCAP_LEN, bcm_rpc_buf_data(rpcb, pkt), rpc_len);
/* !! send up */
bcm_rpc_tp_rx(rpcb, pkt);
len -= (BCM_RPC_TP_ENCAP_LEN + rpc_len);
buf += (BCM_RPC_TP_ENCAP_LEN + rpc_len);
if (len > BCM_RPC_TP_ENCAP_LEN) { /* more frag */
rpcb->tp_host_deagg_cnt_sf++;
RPC_TP_DEAGG(("%s: deagg %d(remaining %d) bytes\n", __FUNCTION__,
rpc_len, len));
} else {
if (len != 0) {
printf("%s: deagg, remaining len %d is not 0\n", __FUNCTION__, len);
}
rpcb->tp_host_deagg_cnt_pass++;
}
}
if (frag < rpcb->tp_host_deagg_cnt_sf) { /* aggregated frames */
rpcb->tp_host_deagg_cnt_sf++; /* last one was not counted */
rpcb->tp_host_deagg_cnt_chain++;
rpcb->tp_host_deagg_cnt_bytes += agglen;
}
error:
return;
}
int BCMFASTPATH
bcm_rpc_tp_recv_rtn(rpc_tp_info_t *rpcb)
{
void *pkt;
int status = 0;
if (!rpcb)
return BCME_BADARG;
if ((pkt = bcm_rpc_tp_pktget(rpcb, PKTBUFSZ, FALSE)) == NULL) {
return BCME_NORESOURCE;
}
RPC_TP_LOCK(rpcb);
if (rpcb->rx_rtn_pkt != NULL) {
RPC_TP_UNLOCK(rpcb);
if (pkt != NULL)
bcm_rpc_tp_pktfree(rpcb, pkt, FALSE);
return BCME_BUSY;
}
rpcb->rx_rtn_pkt = pkt;
RPC_TP_UNLOCK(rpcb);
#ifndef BCMUSBDEV_EP_FOR_RPCRETURN
status = dbus_recv_ctl(rpcb->bus, bcm_rpc_buf_data(rpcb, rpcb->rx_rtn_pkt), PKTBUFSZ);
#else
if (rpcb->has_2nd_bulk_in_ep) {
status = dbus_recv_bulk(rpcb->bus, USBDEV_BULK_IN_EP2);
} else {
status = dbus_recv_ctl(rpcb->bus, bcm_rpc_buf_data(rpcb, rpcb->rx_rtn_pkt),
PKTBUFSZ);
}
#endif /* BCMUSBDEV_EP_FOR_RPCRETURN */
if (status) {
/* May have been cleared by complete routine */
RPC_TP_LOCK(rpcb);
pkt = rpcb->rx_rtn_pkt;
rpcb->rx_rtn_pkt = NULL;
RPC_TP_UNLOCK(rpcb);
if (pkt != NULL)
bcm_rpc_tp_pktfree(rpcb, pkt, FALSE);
if (status == DBUS_ERR_RXFAIL)
status = BCME_RXFAIL;
else if (status == DBUS_ERR_NODEVICE)
status = BCME_NODEVICE;
else
status = BCME_ERROR;
}
return status;
}
