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Merge "msm: ipa: Add graceful handling to skip partial packets"

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This commit is contained in:
qctecmdr 2019-12-16 10:50:50 -08:00 • committed by Gerrit - the friendly Code Review server
commit abe6d961ff
2 changed files with 21 additions and 7 deletions
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26
drivers/platform/msm/ipa/ipa_v3/ipa_dp.c
View file

@ -3288,6 +3288,25 @@ static struct sk_buff *handle_skb_completion(struct gsi_chan_xfer_notify
if (notify->bytes_xfered)
rx_pkt->len = notify->bytes_xfered;
/*Drop packets when WAN consumer channel receive EOB event*/
if ((notify->evt_id == GSI_CHAN_EVT_EOB ||
sys->skip_eot) &&
sys->ep->client == IPA_CLIENT_APPS_WAN_CONS) {
dma_unmap_single(ipa3_ctx->pdev, rx_pkt->data.dma_addr,
sys->rx_buff_sz, DMA_FROM_DEVICE);
sys->free_skb(rx_pkt->data.skb);
sys->free_rx_wrapper(rx_pkt);
sys->eob_drop_cnt++;
if (notify->evt_id == GSI_CHAN_EVT_EOB) {
IPADBG("EOB event on WAN consumer channel, drop\n");
sys->skip_eot = true;
} else {
IPADBG("Reset skip eot flag.\n");
sys->skip_eot = false;
}
return NULL;
}
rx_skb = rx_pkt->data.skb;
skb_set_tail_pointer(rx_skb, rx_pkt->len);
rx_skb->len = rx_pkt->len;
@ -3302,13 +3321,6 @@ static struct sk_buff *handle_skb_completion(struct gsi_chan_xfer_notify
return NULL;
}
/*Assesrt when WAN consumer channel receive EOB event*/
if (notify->evt_id == GSI_CHAN_EVT_EOB &&
sys->ep->client == IPA_CLIENT_APPS_WAN_CONS) {
IPAERR("EOB event received on WAN consumer channel\n");
ipa_assert();
}
head = &rx_pkt->sys->pending_pkts[notify->veid];
INIT_LIST_HEAD(&rx_pkt->link);

2
drivers/platform/msm/ipa/ipa_v3/ipa_i.h
View file

@ -1053,6 +1053,8 @@ struct ipa3_sys_context {
struct list_head pending_pkts[GSI_VEID_MAX];
atomic_t xmit_eot_cnt;
struct tasklet_struct tasklet;
bool skip_eot;
u32 eob_drop_cnt;
/* ordering is important - mutable fields go above */
struct ipa3_ep_context *ep;