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qcacld-3.0: Bypass FISA if IPA RX packet rerouted to host

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If IPA RX hit back pressure, FW will reroute RX frames to host
by REO2SW1 ring(reo_destination_indication 2), this might introduce
FISA RX ring mismatch issue.

Bypass FISA if IPA RX packet rerouted to host by
reo_destination_indication 2.

CRs-Fixed: 2820235
Change-Id: Ife8f2168e1942204cfc66a2a135cb93c9a1e9910
This commit is contained in:
Jinwei Chen 2020-11-10 01:24:46 -08:00 • committed by snandini
commit 7866287981
1 changed files with 12 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

18
core/dp/txrx3.0/dp_fisa_rx.c
View file

@ -25,8 +25,11 @@
static void dp_rx_fisa_flush_flow_wrap(struct dp_fisa_rx_sw_ft *sw_ft);
/** REO will push frame into REO2FW RING */
#define REO_DESTINATION_FW 6
/*
* Used by FW to route RX packets to host REO2SW1 ring if IPA hit
* RX back pressure.
*/
#define REO_DEST_IND_IPA_REROUTE 2
#if defined(FISA_DEBUG_ENABLE)
/**
@ -928,7 +931,8 @@ dp_rx_get_fisa_flow(struct dp_rx_fst *fisa_hdl, struct dp_vdev *vdev,
{
uint8_t *rx_tlv_hdr;
uint32_t flow_idx;
uint32_t reo_destination_indication;
uint32_t tlv_reo_dest_ind;
uint8_t ring_reo_dest_ind;
bool flow_invalid, flow_timeout, flow_idx_valid;
struct dp_fisa_rx_sw_ft *sw_ft_entry = NULL;
hal_soc_handle_t hal_soc_hdl = fisa_hdl->soc_hdl->hal_soc;
@ -938,14 +942,16 @@ dp_rx_get_fisa_flow(struct dp_rx_fst *fisa_hdl, struct dp_vdev *vdev,
rx_tlv_hdr = qdf_nbuf_data(nbuf);
hal_rx_msdu_get_reo_destination_indication(hal_soc_hdl, rx_tlv_hdr,
&reo_destination_indication);
&tlv_reo_dest_ind);
ring_reo_dest_ind = qdf_nbuf_get_rx_reo_dest_ind(nbuf);
/*
* 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))
if (tlv_reo_dest_ind != ring_reo_dest_ind ||
REO_DEST_IND_IPA_REROUTE == ring_reo_dest_ind)
return sw_ft_entry;
hal_rx_msdu_get_flow_params(hal_soc_hdl, rx_tlv_hdr, &flow_invalid,
@ -968,7 +974,7 @@ dp_rx_get_fisa_flow(struct dp_rx_fst *fisa_hdl, struct dp_vdev *vdev,
sw_ft_entry = dp_rx_fisa_add_ft_entry(fisa_hdl, flow_idx, nbuf, vdev,
rx_tlv_hdr,
reo_destination_indication);
tlv_reo_dest_ind);
return sw_ft_entry;
}