From: sricharan@codeaurora.org (Sricharan R)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 06/20] rpmsg: glink: Return -EAGAIN when there is no FIFO space
Date: Thu, 24 Aug 2017 12:51:28 +0530 [thread overview]
Message-ID: <1503559302-3744-7-git-send-email-sricharan@codeaurora.org> (raw)
In-Reply-To: <1503559302-3744-1-git-send-email-sricharan@codeaurora.org>
The TX FIFO can be full, if the remote client has
not read enough data (or) reading it slowly. So its
nessecary to return -EAGAIN to the local client to
enable retry.
Signed-off-by: Sricharan R <sricharan@codeaurora.org>
---
drivers/rpmsg/qcom_glink_native.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c
index a6394cd..94b79e8 100644
--- a/drivers/rpmsg/qcom_glink_native.c
+++ b/drivers/rpmsg/qcom_glink_native.c
@@ -233,7 +233,7 @@ static int qcom_glink_tx(struct qcom_glink *glink,
while (qcom_glink_tx_avail(glink) < tlen) {
if (!wait) {
- ret = -ENOMEM;
+ ret = -EAGAIN;
goto out;
}
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation
next prev parent reply other threads:[~2017-08-24 7:21 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-24 7:21 [PATCH v2 00/20] rpmsg: glink: Add glink smem based transport Sricharan R
2017-08-24 7:21 ` [PATCH v2 01/20] rpmsg: glink: Rename glink_rpm_xx functions to qcom_glink_xx Sricharan R
2017-08-28 11:42 ` Arun Kumar Neelakantam
2017-08-24 7:21 ` [PATCH v2 02/20] rpmsg: glink: Associate indirections for pipe fifo accessor's Sricharan R
2017-08-28 11:44 ` Arun Kumar Neelakantam
2017-08-24 7:21 ` [PATCH v2 03/20] rpmsg: glink: Split rpm_probe to reuse the common code Sricharan R
2017-08-28 11:44 ` Arun Kumar Neelakantam
2017-08-24 7:21 ` [PATCH v2 04/20] rpmsg: glink: Move the common glink protocol implementation to glink_native.c Sricharan R
2017-08-28 11:45 ` Arun Kumar Neelakantam
2017-08-24 7:21 ` [PATCH v2 05/20] rpmsg: glink: Allow unaligned data access Sricharan R
2017-08-28 11:46 ` Arun Kumar Neelakantam
2017-08-24 7:21 ` Sricharan R [this message]
2017-08-28 11:47 ` [PATCH v2 06/20] rpmsg: glink: Return -EAGAIN when there is no FIFO space Arun Kumar Neelakantam
2017-08-24 7:21 ` [PATCH v2 07/20] rpmsg: glink: Do a mbox_free_channel in remove Sricharan R
2017-08-28 11:47 ` Arun Kumar Neelakantam
2017-08-24 7:21 ` [PATCH v2 08/20] rpmsg: glink: Introduce glink smem based transport Sricharan R
2017-08-28 11:48 ` Arun Kumar Neelakantam
2017-08-24 7:21 ` [PATCH v2 09/20] rpmsg: glink: Fix default case while handling received commands Sricharan R
2017-08-28 11:48 ` Arun Kumar Neelakantam
2017-08-29 20:57 ` Bjorn Andersson
2017-08-24 7:21 ` [PATCH v2 10/20] rpmsg: glink: Add support for transport version negotiation Sricharan R
2017-08-28 11:48 ` Arun Kumar Neelakantam
2017-08-24 7:21 ` [PATCH v2 11/20] rpmsg: glink: Fix idr_lock from mutex to spinlock Sricharan R
2017-08-28 11:49 ` Arun Kumar Neelakantam
2017-08-28 21:51 ` Chris Lew
2017-08-28 23:13 ` Sricharan R
2017-08-24 7:21 ` [PATCH v2 12/20] rpmsg: glink: Add support for TX intents Sricharan R
2017-08-28 11:49 ` Arun Kumar Neelakantam
2017-08-24 7:21 ` [PATCH v2 13/20] rpmsg: glink: Use the local intents when receiving data Sricharan R
2017-08-28 11:49 ` Arun Kumar Neelakantam
2017-08-24 7:21 ` [PATCH v2 14/20] rpmsg: glink: Make RX FIFO peak accessor to take an offset Sricharan R
2017-08-28 11:50 ` Arun Kumar Neelakantam
2017-08-24 7:21 ` [PATCH v2 15/20] rpmsg: glink: Add rx done command Sricharan R
2017-08-28 11:50 ` Arun Kumar Neelakantam
2017-08-24 7:21 ` [PATCH v2 16/20] rpmsg: glink: Add announce_create ops and preallocate intents Sricharan R
2017-08-28 11:50 ` Arun Kumar Neelakantam
2017-08-24 7:21 ` [PATCH v2 17/20] rpmsg: glink: Receive and store the remote intent buffers Sricharan R
2017-08-28 11:51 ` Arun Kumar Neelakantam
2017-08-24 7:21 ` [PATCH v2 18/20] rpmsg: glink: Use the intents passed by remote Sricharan R
2017-08-24 7:21 ` [PATCH v2 19/20] rpmsg: glink: Request for intents when unavailable Sricharan R
2017-08-24 7:21 ` [PATCH v2 20/20] rpmsg: glink: Handle remote rx done command Sricharan R
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