u_int32_t
htt_pkt_dl_len_get(htt_pdev_handle htt_pdev)
{
enum wlan_frm_fmt frm_type;
u_int32_t pkt_dl_len = 0;
struct htt_pdev_t *pdev = htt_pdev;
/* account for the 802.3 or 802.11 header */
frm_type = ol_cfg_frame_type(pdev->ctrl_pdev);
if (frm_type == wlan_frm_fmt_native_wifi) {
pkt_dl_len = HTT_TX_HDR_SIZE_NATIVE_WIFI;
} else if (frm_type == wlan_frm_fmt_802_3) {
pkt_dl_len = HTT_TX_HDR_SIZE_ETHERNET;
} else {
adf_os_print("Unexpected frame type spec: %d\n", frm_type);
HTT_ASSERT0(0);
}
/*
* Account for the optional L2 / ethernet header fields:
* 802.1Q, LLC/SNAP
*/
pkt_dl_len +=
HTT_TX_HDR_SIZE_802_1Q + HTT_TX_HDR_SIZE_LLC_SNAP;
/*
* Account for the portion of the L3 (IP) payload that the
* target needs for its tx classification.
*/
pkt_dl_len += ol_cfg_tx_download_size(pdev->ctrl_pdev);
return pkt_dl_len;
}
int
htt_tx_send_nonstd(htt_pdev_handle pdev,
cdf_nbuf_t msdu,
uint16_t msdu_id, enum htt_pkt_type pkt_type)
{
int download_len;
/*
* The pkt_type could be checked to see what L2 header type is present,
* and then the L2 header could be examined to determine its length.
* But for simplicity, just use the maximum possible header size,
* rather than computing the actual header size.
*/
download_len = sizeof(struct htt_host_tx_desc_t)
+ HTT_TX_HDR_SIZE_OUTER_HDR_MAX /* worst case */
+ HTT_TX_HDR_SIZE_802_1Q
+ HTT_TX_HDR_SIZE_LLC_SNAP
+ ol_cfg_tx_download_size(pdev->ctrl_pdev);
return htt_tx_send_base(pdev, msdu, msdu_id, download_len, 0);
}
