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Commit db111a32 authored by Mohammed Javid's avatar Mohammed Javid
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msm: ipa3: Set HOLB on WDI Tx pipe during WDI Rx suspend 



uC send command failure during WDI pipe suspend because
of WDI Tx pipe full. To resolve this issue setting HOLB on
WDI Tx-pipe to drop packets when receiving wdi-rx suspend
request and remove HLOB once uC send command success.

Change-Id: Ia6be2a22f4ca90119909732794dde09ab0a94775
Acked-by: default avatarAshok Vuyyuru <avuyyuru@qti.qualcomm.com>
Signed-off-by: default avatarMohammed Javid <mjavid@codeaurora.org>
parent 4b19ee48

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

+26 −0
Original line number Diff line number Diff line
@@ -16,6 +16,7 @@ 
#include "ipa_qmi_service.h"



#define IPA_HOLB_TMR_DIS 0x0

#define IPA_HOLB_TMR_EN 0x1



#define IPA_HW_INTERFACE_WDI_VERSION 0x0001

#define IPA_HW_WDI_RX_MBOX_START_INDEX 48
@@ -1534,6 +1535,24 @@ int ipa3_resume_wdi_pipe(u32 clnt_hdl) 
	return result;

}



static void ipa3_cfg_holb_wdi_consumer(bool is_enable)

{

	u32 clnt_hdl;

	struct ipa_ep_cfg_holb holb_cfg;



	clnt_hdl = ipa3_get_ep_mapping(IPA_CLIENT_WLAN1_CONS);

	if (clnt_hdl < ipa3_ctx->ipa_num_pipes &&

		ipa3_ctx->ep[clnt_hdl].valid == 1) {

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

		if (is_enable)

			holb_cfg.en = IPA_HOLB_TMR_EN;

		else

			holb_cfg.en = IPA_HOLB_TMR_DIS;

		holb_cfg.tmr_val = 0;

		ipa3_cfg_ep_holb(clnt_hdl, &holb_cfg);

	}

}



/**

 * ipa3_suspend_wdi_pipe() - WDI client suspend

 * @clnt_hdl:	[in] opaque client handle assigned by IPA to client
@@ -1600,6 +1619,9 @@ int ipa3_suspend_wdi_pipe(u32 clnt_hdl) 
			}

		}



		/* Enabling HOLB on WDI consumer pipe */

		ipa3_cfg_holb_wdi_consumer(true);



		IPADBG("Post suspend event first for IPA Producer\n");

		IPADBG("Client: %d clnt_hdl: %d\n", ep->client, clnt_hdl);

		result = ipa3_uc_send_cmd(suspend.raw32b,
@@ -1609,8 +1631,12 @@ int ipa3_suspend_wdi_pipe(u32 clnt_hdl) 


		if (result) {

			result = -EFAULT;

			/* Disabling HOLB on WDI consumer pipe */

			ipa3_cfg_holb_wdi_consumer(false);

			goto uc_timeout;

		}

		/* Disabling HOLB on WDI consumer pipe */

		ipa3_cfg_holb_wdi_consumer(false);

	}



	memset(&ep_cfg_ctrl, 0, sizeof(struct ipa_ep_cfg_ctrl));