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From: Hemant Kumar <hemantk@codeaurora.org>
To: manivannan.sadhasivam@linaro.org, gregkh@linuxfoundation.org
Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
	jhugo@codeaurora.org, bbhatt@codeaurora.org,
	loic.poulain@linaro.org, netdev@vger.kernel.org,
	Hemant Kumar <hemantk@codeaurora.org>
Subject: [RESEND v15 2/4] bus: mhi: core: Move MHI_MAX_MTU to external header file
Date: Thu,  3 Dec 2020 18:41:49 -0800	[thread overview]
Message-ID: <1607049711-31776-3-git-send-email-hemantk@codeaurora.org> (raw)
In-Reply-To: <1607049711-31776-1-git-send-email-hemantk@codeaurora.org>

Currently this macro is defined in internal MHI header as
a TRE length mask. Moving it to external header allows MHI
client drivers to set this upper bound for the transmit
buffer size.

Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
 drivers/bus/mhi/core/internal.h | 1 -
 include/linux/mhi.h             | 3 +++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/bus/mhi/core/internal.h b/drivers/bus/mhi/core/internal.h
index 6f80ec3..2b9c063 100644
--- a/drivers/bus/mhi/core/internal.h
+++ b/drivers/bus/mhi/core/internal.h
@@ -453,7 +453,6 @@ enum mhi_pm_state {
 #define CMD_EL_PER_RING			128
 #define PRIMARY_CMD_RING		0
 #define MHI_DEV_WAKE_DB			127
-#define MHI_MAX_MTU			0xffff
 #define MHI_RANDOM_U32_NONZERO(bmsk)	(prandom_u32_max(bmsk) + 1)
 
 enum mhi_er_type {
diff --git a/include/linux/mhi.h b/include/linux/mhi.h
index e36d575..f072605 100644
--- a/include/linux/mhi.h
+++ b/include/linux/mhi.h
@@ -15,6 +15,9 @@
 #include <linux/wait.h>
 #include <linux/workqueue.h>
 
+/* MHI client drivers to set this upper bound for tx buffer */
+#define MHI_MAX_MTU 0xffff
+
 #define MHI_MAX_OEM_PK_HASH_SEGMENTS 16
 
 struct mhi_chan;
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project


  parent reply	other threads:[~2020-12-04  2:43 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-04  2:41 [RESEND v15 0/4] userspace MHI client interface driver Hemant Kumar
2020-12-04  2:41 ` [RESEND v15 1/4] bus: mhi: core: Add helper API to return number of free TREs Hemant Kumar
2020-12-04  2:41 ` Hemant Kumar [this message]
2020-12-04  2:41 ` [RESEND v15 3/4] docs: Add documentation for userspace client interface Hemant Kumar
2020-12-04  2:41 ` [RESEND v15 4/4] bus: mhi: Add userspace client interface driver Hemant Kumar

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