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Commit a014bdba authored by Bojun Pan's avatar Bojun Pan Committed by Gerrit - the friendly Code Review server
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msm: ipa: Fix the missing page recycling cleanup on ssr 



Fix the missing handling to cleanup the recycling page on ssr,
add a new cleanup_cb of gsi_reset_channel for page.

Change-Id: Ied16ffe935ac3e5aecdb45389913b1ff94f284b9
Signed-off-by: default avatarBojun Pan <bojunp@codeaurora.org>
parent 8fbc286d

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

+24 −0
Original line number Diff line number Diff line
@@ -2424,6 +2424,25 @@ static void free_rx_pkt(void *chan_user_data, void *xfer_user_data) 
	kmem_cache_free(ipa3_ctx->rx_pkt_wrapper_cache, rx_pkt);

}



/**

 * free_rx_page() - function to free the page and rx_pkt_wrapper

 *

 * @chan_user_data: ipa_sys_context used for skb size and skb_free func

 * @xfer_uder_data: rx_pkt wrapper to be freed

 *

 */

static void free_rx_page(void *chan_user_data, void *xfer_user_data)

{

	struct ipa3_rx_pkt_wrapper *rx_pkt = (struct ipa3_rx_pkt_wrapper *)

		xfer_user_data;



	dma_unmap_page(ipa3_ctx->pdev, rx_pkt->page_data.dma_addr,

		rx_pkt->len, DMA_FROM_DEVICE);

	__free_pages(rx_pkt->page_data.page,

		IPA_WAN_PAGE_ORDER);

	kmem_cache_free(ipa3_ctx->rx_pkt_wrapper_cache, rx_pkt);

}



/**

 * ipa3_cleanup_rx() - release RX queue resources

 *
@@ -4451,6 +4470,11 @@ static int ipa_gsi_setup_transfer_ring(struct ipa3_ep_context *ep, 
	if (IPA_CLIENT_IS_CONS(ep->client))

		gsi_channel_props.cleanup_cb = free_rx_pkt;



	/* overwrite the cleanup_cb for page recycling */

	if (ipa3_ctx->ipa_wan_skb_page &&

		(IPA_CLIENT_IS_WAN_CONS(ep->client)))

		gsi_channel_props.cleanup_cb = free_rx_page;



	result = gsi_alloc_channel(&gsi_channel_props, ipa3_ctx->gsi_dev_hdl,

		&ep->gsi_chan_hdl);

	if (result != GSI_STATUS_SUCCESS) {