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qcacld-3.0: Bypass FISA if reo_destination_indication mismatch

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For wow or active offload mode, FW will re-inject some RX frames
to REO with reo_destination_indication 1 (REO2SW1) to REO entrance
ring, but the original reo_destination_indication in RX buffer pkt_tlv
is 6 (REO2FW) or other flow steering value (>=16), then REO2SW ring
mismatch will happen that break FISA function in host.
Bypass FISA if reo_destination_indication mismatch between REO ring
descriptor and pkt TLVS.

Change-Id: I8736b8a96513c2e49fe41fb460f81cb0ef01ed01
CRs-Fixed: 2807461
This commit is contained in:
Jinwei Chen 2020-10-30 01:47:01 -07:00 • committed by snandini
commit 20985867e3
1 changed files with 7 additions and 10 deletions
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17
core/dp/txrx3.0/dp_fisa_rx.c
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@ -920,18 +920,15 @@ dp_rx_get_fisa_flow(struct dp_rx_fst *fisa_hdl, struct dp_vdev *vdev,
return sw_ft_entry;
rx_tlv_hdr = qdf_nbuf_data(nbuf);
/*
* Get reo_destination_indication from RX_PKT_TLV-->msdu_end,
* if reo_destination_indication == 6, it means this frame is
* reinjected by FW offload module, these frames should not go to FISA
* since REO2SW1 will be selected by FW offload module. If same flow
* frames hash select other REO2SW rings, same flow UDP frames will go
* to different REO2SW ring.
*/
hal_rx_msdu_get_reo_destination_indication(hal_soc_hdl, rx_tlv_hdr,
&reo_destination_indication);
if (qdf_unlikely(reo_destination_indication == REO_DESTINATION_FW))
/*
* Compare reo_destination_indication between reo ring descriptor
* and rx_pkt_tlvs, if they are different, then likely these kind
* of frames re-injected by FW or touched by other module already,
* skip FISA to avoid REO2SW ring mismatch issue for same flow.
*/
if (reo_destination_indication != qdf_nbuf_get_rx_reo_dest_ind(nbuf))
return sw_ft_entry;
hal_rx_msdu_get_flow_params(hal_soc_hdl, rx_tlv_hdr, &flow_invalid,