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Commit 71923380 authored by Ashok Vuyyuru's avatar Ashok Vuyyuru Committed by Chaitanya Pratapa
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msm: ipa3: Disable HOLB for ODL pipe during suspend 



1. Disable HOLB for ODL pipe during suspend to avoid dropping the packet
2. Enable HOLB while unsuspend the pipes.
3. Enable drop stats for ODL pipe.

Change-Id: Id0a5871ebe4a0925c60dea39f197af9e1892d05e
Signed-off-by: default avatarAshok Vuyyuru <avuyyuru@codeaurora.org>
parent 3cb33329

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

+3 −0
Original line number Diff line number Diff line
@@ -1533,6 +1533,9 @@ int ipa_drop_stats_init(void) 
	/* Always enable drop stats for USB DPL Pipe. */

	pipe_bitmask |= IPA_CLIENT_BIT_32(IPA_CLIENT_USB_DPL_CONS);



	/* Always enable drop stats for ODL DPL Pipe. */

	pipe_bitmask |= IPA_CLIENT_BIT_32(IPA_CLIENT_ODL_DPL_CONS);



	/* Currently we have option to enable drop stats using debugfs.

	 * To enable drop stats for a different pipe, first user needs

	 * to query drop stats to get the current stats and enable.

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

+20 −0
Original line number Diff line number Diff line
@@ -8784,6 +8784,8 @@ void ipa3_force_close_coal(void) 
int ipa3_suspend_apps_pipes(bool suspend)

{

	int res;

	struct ipa_ep_cfg_holb holb_cfg;

	int odl_ep_idx;



	/* As per HPG first need start/stop coalescing channel

	 * then default one. Coalescing client number was greater then
@@ -8805,6 +8807,24 @@ int ipa3_suspend_apps_pipes(bool suspend) 
	if (res == -EAGAIN)

		goto undo_odl_cons;



	odl_ep_idx = ipa3_get_ep_mapping(IPA_CLIENT_ODL_DPL_CONS);

	if (odl_ep_idx != IPA_EP_NOT_ALLOCATED && ipa3_ctx->ep[odl_ep_idx].valid) {

		memset(&holb_cfg, 0, sizeof(holb_cfg));

		if (suspend)

			holb_cfg.en = 0;

		else

			holb_cfg.en = 1;



		ipahal_write_reg_n_fields(IPA_ENDP_INIT_HOL_BLOCK_EN_n,

				odl_ep_idx, &holb_cfg);

		/* IPA4.5 issue requires HOLB_EN to be written twice */

		if (ipa3_ctx->ipa_hw_type >= IPA_HW_v4_5 && holb_cfg.en)

			ipahal_write_reg_n_fields(

					IPA_ENDP_INIT_HOL_BLOCK_EN_n,

					odl_ep_idx, &holb_cfg);



	}



	res = _ipa_suspend_resume_pipe(IPA_CLIENT_APPS_WAN_LOW_LAT_CONS,

		suspend);

	if (res == -EAGAIN)