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Commit dfa95b50 authored by Michal Kazior's avatar Michal Kazior Committed by Kalle Valo
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ath10k: implement 802.3 SNAP rx decap type A-MSDU handling 



This enables driver to rx another decapped a-msdu
frames. It should possibly help with throughputs
in some cases and reduce (or eliminate) number of
messages like this:

  ath10k: error processing msdus -524

Signed-off-by: default avatarMichal Kazior <michal.kazior@tieto.com>
Signed-off-by: default avatarKalle Valo <kvalo@qca.qualcomm.com>
parent 0e1cbf9a

drivers/net/wireless/ath/ath10k/htt_rx.c

+10 −2
Original line number Diff line number Diff line
@@ -610,8 +610,7 @@ static int ath10k_htt_rx_amsdu(struct ath10k_htt *htt, 
			RX_MPDU_START_INFO0_ENCRYPT_TYPE);



	/* FIXME: No idea what assumptions are safe here. Need logs */

	if ((fmt == RX_MSDU_DECAP_RAW && skb->next) ||

	    (fmt == RX_MSDU_DECAP_8023_SNAP_LLC)) {

	if ((fmt == RX_MSDU_DECAP_RAW && skb->next)) {

		ath10k_htt_rx_free_msdu_chain(skb->next);

		skb->next = NULL;

		return -ENOTSUPP;
@@ -659,6 +658,15 @@ static int ath10k_htt_rx_amsdu(struct ath10k_htt *htt, 
			decap_hdr += roundup(crypto_len, 4);

		}



		/* When fmt == RX_MSDU_DECAP_8023_SNAP_LLC:

		 *

		 * SNAP 802.3 consists of:

		 * [dst:6][src:6][len:2][dsap:1][ssap:1][ctl:1][snap:5]

		 * [data][fcs:4].

		 *

		 * Since this overlaps with A-MSDU header (da, sa, len)

		 * there's nothing extra to do. */



		if (fmt == RX_MSDU_DECAP_ETHERNET2_DIX) {

			/* Ethernet2 decap inserts ethernet header in place of

			 * A-MSDU subframe header. */