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authorBing Zhao <bzhao@marvell.com>2009-04-06 15:50:56 -0700
committerJohn W. Linville <linville@tuxdriver.com>2009-04-22 16:54:41 -0400
commite45d8e534b67580eedd9b4910ccc16d6dd3cceff (patch)
treea8062a38ed2a5217bf034031e5193d9e17480939 /drivers/net/wireless/libertas/rx.c
parent87cbfd06889256cac945b37c7f62f4ce7f44b34a (diff)
libertas: add support for Marvell SD8688 chip
libertas: add support for Marvell SD8688 chip Use RxPD->pkt_ptr to locate eth803 header in the packet received since SD8688/v10 firmware allows a gap between RxPD and eth803 header. Set SDIO block size to 256 for CMD53. The maximum block size for SD8688 WLAN function is set to 512 in TPLFE_MAX_BLK_SIZE. But using 512 as block size results upto 2K bytes data (4 blocks) being transferred and causes buffer overflow in firmware. Both changes above are backward compatible with earlier firmware versions for SD8385/SD8686. The SDIO_DEVICE_IDs for SD8688 chip are added in include/linux/mmc/sdio_ids.h Signed-off-by: Kiran Divekar <dkiran@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Acked-by: Dan Williams <dcbw@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/libertas/rx.c')
-rw-r--r--drivers/net/wireless/libertas/rx.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/net/wireless/libertas/rx.c b/drivers/net/wireless/libertas/rx.c
index 820c22d9220f..bd845d09f174 100644
--- a/drivers/net/wireless/libertas/rx.c
+++ b/drivers/net/wireless/libertas/rx.c
@@ -25,7 +25,6 @@ struct rfc1042hdr {
} __attribute__ ((packed));
struct rxpackethdr {
- struct rxpd rx_pd;
struct eth803hdr eth803_hdr;
struct rfc1042hdr rfc1042_hdr;
} __attribute__ ((packed));
@@ -158,8 +157,9 @@ int lbs_process_rxed_packet(struct lbs_private *priv, struct sk_buff *skb)
if (priv->monitormode)
return process_rxed_802_11_packet(priv, skb);
- p_rx_pkt = (struct rxpackethdr *) skb->data;
- p_rx_pd = &p_rx_pkt->rx_pd;
+ p_rx_pd = (struct rxpd *) skb->data;
+ p_rx_pkt = (struct rxpackethdr *) ((u8 *)p_rx_pd +
+ le32_to_cpu(p_rx_pd->pkt_ptr));
if (priv->mesh_dev) {
if (priv->mesh_fw_ver == MESH_FW_OLD) {
if (p_rx_pd->rx_control & RxPD_MESH_FRAME)
@@ -181,8 +181,9 @@ int lbs_process_rxed_packet(struct lbs_private *priv, struct sk_buff *skb)
goto done;
}
- lbs_deb_rx("rx data: skb->len-sizeof(RxPd) = %d-%zd = %zd\n",
- skb->len, sizeof(struct rxpd), skb->len - sizeof(struct rxpd));
+ lbs_deb_rx("rx data: skb->len - pkt_ptr = %d-%zd = %zd\n",
+ skb->len, le32_to_cpu(p_rx_pd->pkt_ptr),
+ skb->len - le32_to_cpu(p_rx_pd->pkt_ptr));
lbs_deb_hex(LBS_DEB_RX, "RX Data: Dest", p_rx_pkt->eth803_hdr.dest_addr,
sizeof(p_rx_pkt->eth803_hdr.dest_addr));
@@ -216,14 +217,14 @@ int lbs_process_rxed_packet(struct lbs_private *priv, struct sk_buff *skb)
/* Chop off the rxpd + the excess memory from the 802.2/llc/snap header
* that was removed
*/
- hdrchop = (u8 *) p_ethhdr - (u8 *) p_rx_pkt;
+ hdrchop = (u8 *)p_ethhdr - (u8 *)p_rx_pd;
} else {
lbs_deb_hex(LBS_DEB_RX, "RX Data: LLC/SNAP",
(u8 *) & p_rx_pkt->rfc1042_hdr,
sizeof(p_rx_pkt->rfc1042_hdr));
/* Chop off the rxpd */
- hdrchop = (u8 *) & p_rx_pkt->eth803_hdr - (u8 *) p_rx_pkt;
+ hdrchop = (u8 *)&p_rx_pkt->eth803_hdr - (u8 *)p_rx_pd;
}
/* Chop off the leading header bytes so the skb points to the start of