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msm: ipa: Fix the missing page recycling cleanup on ssr

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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: Bojun Pan <bojunp@codeaurora.org>
This commit is contained in:
Bojun Pan 2019-08-07 10:25:59 -07:00 • committed by Gerrit - the friendly Code Review server
commit a78dc222d7
1 changed files with 24 additions and 0 deletions
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24
drivers/platform/msm/ipa/ipa_v3/ipa_dp.c
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@ -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
*
@ -4450,6 +4469,11 @@ 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) {