diff options
| -rw-r--r-- | drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c | 62 |
1 files changed, 33 insertions, 29 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c index 5ca7ae203089..c6825f23b3f7 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c @@ -574,7 +574,7 @@ struct brcmf_bus { uint txminmax; struct sk_buff *glomd; /* Packet containing glomming descriptor */ - struct sk_buff *glom; /* Packet chain for glommed superframe */ + struct sk_buff_head glom; /* Packet list for glommed superframe */ uint glomerr; /* Glom packet read errors */ u8 *rxbuf; /* Buffer for receiving control packets */ @@ -1229,16 +1229,17 @@ static uint brcmf_sdbrcm_glom_from_buf(struct brcmf_bus *bus, uint len) struct sk_buff *p; u8 *buf; - p = bus->glom; buf = bus->dataptr; /* copy the data */ - for (; p && len; p = p->next) { + skb_queue_walk(&bus->glom, p) { n = min_t(uint, p->len, len); memcpy(p->data, buf, n); buf += n; len -= n; ret += n; + if (!len) + break; } return ret; @@ -1262,7 +1263,8 @@ static u8 brcmf_sdbrcm_rxglom(struct brcmf_bus *bus, u8 rxseq) /* If packets, issue read(s) and send up packet chain */ /* Return sequence numbers consumed? */ - brcmf_dbg(TRACE, "start: glomd %p glom %p\n", bus->glomd, bus->glom); + brcmf_dbg(TRACE, "start: glomd %p glom %p\n", + bus->glomd, skb_peek(&bus->glom)); /* If there's a descriptor, generate the packet chain */ if (bus->glomd) { @@ -1309,12 +1311,7 @@ static u8 brcmf_sdbrcm_rxglom(struct brcmf_bus *bus, u8 rxseq) num, sublen); break; } - if (!pfirst) { - pfirst = plast = pnext; - } else { - plast->next = pnext; - plast = pnext; - } + skb_queue_tail(&bus->glom, pnext); /* Adhere to start alignment requirements */ pkt_align(pnext, sublen, BRCMF_SDALIGN); @@ -1330,12 +1327,13 @@ static u8 brcmf_sdbrcm_rxglom(struct brcmf_bus *bus, u8 rxseq) brcmf_dbg(GLOM, "glomdesc mismatch: nextlen %d glomdesc %d rxseq %d\n", bus->nextlen, totlen, rxseq); } - bus->glom = pfirst; pfirst = pnext = NULL; } else { - if (pfirst) - brcmu_pkt_buf_free_skb(pfirst); - bus->glom = NULL; + if (!skb_queue_empty(&bus->glom)) + skb_queue_walk_safe(&bus->glom, pfirst, pnext) { + skb_unlink(pfirst, &bus->glom); + brcmu_pkt_buf_free_skb(pfirst); + } num = 0; } @@ -1347,17 +1345,17 @@ static u8 brcmf_sdbrcm_rxglom(struct brcmf_bus *bus, u8 rxseq) /* Ok -- either we just generated a packet chain, or had one from before */ - if (bus->glom) { + if (!skb_queue_empty(&bus->glom)) { if (BRCMF_GLOM_ON()) { brcmf_dbg(GLOM, "try superframe read, packet chain:\n"); - for (pnext = bus->glom; pnext; pnext = pnext->next) { + skb_queue_walk(&bus->glom, pnext) { brcmf_dbg(GLOM, " %p: %p len 0x%04x (%d)\n", pnext, (u8 *) (pnext->data), pnext->len, pnext->len); } } - pfirst = bus->glom; + pfirst = skb_peek(&bus->glom); dlen = (u16) brcmu_pkttotlen(pfirst); /* Do an SDIO read for the superframe. Configurable iovar to @@ -1401,9 +1399,11 @@ static u8 brcmf_sdbrcm_rxglom(struct brcmf_bus *bus, u8 rxseq) } else { bus->glomerr = 0; brcmf_sdbrcm_rxfail(bus, true, false); - brcmu_pkt_buf_free_skb(bus->glom); bus->rxglomfail++; - bus->glom = NULL; + skb_queue_walk_safe(&bus->glom, pfirst, pnext) { + skb_unlink(pfirst, &bus->glom); + brcmu_pkt_buf_free_skb(pfirst); + } } return 0; } @@ -1524,9 +1524,11 @@ static u8 brcmf_sdbrcm_rxglom(struct brcmf_bus *bus, u8 rxseq) } else { bus->glomerr = 0; brcmf_sdbrcm_rxfail(bus, true, false); - brcmu_pkt_buf_free_skb(bus->glom); bus->rxglomfail++; - bus->glom = NULL; + skb_queue_walk_safe(&bus->glom, pfirst, pnext) { + skb_unlink(pfirst, &bus->glom); + brcmu_pkt_buf_free_skb(pfirst); + } } bus->nextlen = 0; return 0; @@ -1534,7 +1536,6 @@ static u8 brcmf_sdbrcm_rxglom(struct brcmf_bus *bus, u8 rxseq) /* Basic SD framing looks ok - process each packet (header) */ save_pfirst = pfirst; - bus->glom = NULL; plast = NULL; for (num = 0; pfirst; rxseq++, pfirst = pnext) { @@ -1871,10 +1872,10 @@ brcmf_sdbrcm_readframes(struct brcmf_bus *bus, uint maxframes, bool *finished) rxseq++, rxleft--) { /* Handle glomming separately */ - if (bus->glom || bus->glomd) { + if (bus->glomd || !skb_queue_empty(&bus->glom)) { u8 cnt; brcmf_dbg(GLOM, "calling rxglom: glomd %p, glom %p\n", - bus->glomd, bus->glom); + bus->glomd, skb_peek(&bus->glom)); cnt = brcmf_sdbrcm_rxglom(bus, rxseq); brcmf_dbg(GLOM, "rxglom returned %d\n", cnt); rxseq += cnt - 1; @@ -3623,6 +3624,8 @@ void brcmf_sdbrcm_bus_stop(struct brcmf_bus *bus) u8 saveclk; uint retries; int err; + struct sk_buff *cur; + struct sk_buff *next; brcmf_dbg(TRACE, "Enter\n"); @@ -3682,11 +3685,11 @@ void brcmf_sdbrcm_bus_stop(struct brcmf_bus *bus) /* Clear any held glomming stuff */ if (bus->glomd) brcmu_pkt_buf_free_skb(bus->glomd); - - if (bus->glom) - brcmu_pkt_buf_free_skb(bus->glom); - - bus->glom = bus->glomd = NULL; + if (!skb_queue_empty(&bus->glom)) + skb_queue_walk_safe(&bus->glom, cur, next) { + skb_unlink(cur, &bus->glom); + brcmu_pkt_buf_free_skb(cur); + } /* Clear rx control and wake any waiters */ bus->rxlen = 0; @@ -4461,6 +4464,7 @@ void *brcmf_sdbrcm_probe(u16 bus_no, u16 slot, u16 func, uint bustype, bus->sdiodev = sdiodev; sdiodev->bus = bus; + skb_queue_head_init(&bus->glom); bus->txbound = BRCMF_TXBOUND; bus->rxbound = BRCMF_RXBOUND; bus->txminmax = BRCMF_TXMINMAX; |