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Commit 3064b202 authored by Linux Build Service Account's avatar Linux Build Service Account Committed by Gerrit - the friendly Code Review server
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Merge "msm: ipa3: fix packet handling for multiple buffers"

parents 0df01f72 2f2f9519

drivers/platform/msm/ipa/ipa_v3/ipa_dp.c

+8 −5
Original line number Diff line number Diff line
@@ -1914,6 +1914,7 @@ static void ipa3_replenish_wlan_rx_cache(struct ipa3_sys_context *sys) 
				gsi_xfer_elem_one.addr = rx_pkt->data.dma_addr;

				gsi_xfer_elem_one.len = IPA_WLAN_RX_BUFF_SZ;

				gsi_xfer_elem_one.flags |= GSI_XFER_FLAG_EOT;

				gsi_xfer_elem_one.flags |= GSI_XFER_FLAG_EOB;

				gsi_xfer_elem_one.type = GSI_XFER_ELEM_DATA;

				gsi_xfer_elem_one.xfer_user_data = rx_pkt;
@@ -2101,6 +2102,7 @@ static void ipa3_replenish_rx_cache(struct ipa3_sys_context *sys) 
			gsi_xfer_elem_one.addr = rx_pkt->data.dma_addr;

			gsi_xfer_elem_one.len = sys->rx_buff_sz;

			gsi_xfer_elem_one.flags |= GSI_XFER_FLAG_EOT;

			gsi_xfer_elem_one.flags |= GSI_XFER_FLAG_EOB;

			gsi_xfer_elem_one.type = GSI_XFER_ELEM_DATA;

			gsi_xfer_elem_one.xfer_user_data = rx_pkt;
@@ -2207,6 +2209,7 @@ static void ipa3_replenish_rx_cache_recycle(struct ipa3_sys_context *sys) 
			gsi_xfer_elem_one.addr = rx_pkt->data.dma_addr;

			gsi_xfer_elem_one.len = sys->rx_buff_sz;

			gsi_xfer_elem_one.flags |= GSI_XFER_FLAG_EOT;

			gsi_xfer_elem_one.flags |= GSI_XFER_FLAG_EOB;

			gsi_xfer_elem_one.type = GSI_XFER_ELEM_DATA;

			gsi_xfer_elem_one.xfer_user_data = rx_pkt;
@@ -2272,6 +2275,7 @@ static void ipa3_fast_replenish_rx_cache(struct ipa3_sys_context *sys) 
			gsi_xfer_elem_one.addr = rx_pkt->data.dma_addr;

			gsi_xfer_elem_one.len = sys->rx_buff_sz;

			gsi_xfer_elem_one.flags |= GSI_XFER_FLAG_EOT;

			gsi_xfer_elem_one.flags |= GSI_XFER_FLAG_EOB;

			gsi_xfer_elem_one.type = GSI_XFER_ELEM_DATA;

			gsi_xfer_elem_one.xfer_user_data = rx_pkt;
@@ -2407,7 +2411,6 @@ static int ipa3_lan_rx_pyld_hdlr(struct sk_buff *skb, 


	if (skb->len == 0) {

		IPAERR("ZLT\n");

		sys->free_skb(skb);

		return rc;

	}
@@ -2467,7 +2470,6 @@ static int ipa3_lan_rx_pyld_hdlr(struct sk_buff *skb, 
				sys->prev_skb = skb2;

			}

			sys->len_rem -= skb->len;

			sys->free_skb(skb);

			return rc;

		}

	}
@@ -2481,7 +2483,7 @@ begin: 
		if (skb->len < pkt_status_sz) {

			WARN_ON(sys->prev_skb != NULL);

			IPADBG_LOW("status straddles buffer\n");

			sys->prev_skb = skb;

			sys->prev_skb = skb_copy(skb, GFP_KERNEL);

			sys->len_partial = skb->len;

			return rc;

		}
@@ -2573,7 +2575,7 @@ begin: 
				IPAHAL_PKT_STATUS_EXCEPTION_NONE) {

				WARN_ON(sys->prev_skb != NULL);

				IPADBG_LOW("Ins header in next buffer\n");

				sys->prev_skb = skb;

				sys->prev_skb = skb_copy(skb, GFP_KERNEL);

				sys->len_partial = skb->len;

				return rc;

			}
@@ -2594,7 +2596,7 @@ begin: 
			}



			skb2 = ipa3_skb_copy_for_client(skb,

				status.pkt_len + pkt_status_sz);

				min(status.pkt_len + pkt_status_sz, skb->len));

			if (likely(skb2)) {

				if (skb->len < len + pkt_status_sz) {

					IPADBG_LOW("SPL skb len %d len %d\n",
@@ -3764,6 +3766,7 @@ static void ipa_gsi_irq_rx_notify_cb(struct gsi_chan_xfer_notify *notify) 


	switch (notify->evt_id) {

	case GSI_CHAN_EVT_EOT:

	case GSI_CHAN_EVT_EOB:

		atomic_set(&ipa3_ctx->transport_pm.eot_activity, 1);

		if (!atomic_read(&sys->curr_polling_state)) {

			/* put the gsi channel into polling mode */