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| author | Bjorn Andersson <quic_bjorande@quicinc.com> | 2023-04-18 09:30:18 -0700 |
|---|---|---|
| committer | Bjorn Andersson <andersson@kernel.org> | 2023-04-19 12:43:19 -0700 |
| commit | ba7a4754da1092decbeea3b29bf7d5946f1be400 (patch) | |
| tree | 1edb4d7a8f125d1cafa21f41f13195a90f468dae /drivers/rpmsg | |
| parent | 7a68f9fa97357a0f2073c9c31ed4101da4fce93e (diff) | |
| download | linux-ba7a4754da1092decbeea3b29bf7d5946f1be400.tar.gz linux-ba7a4754da1092decbeea3b29bf7d5946f1be400.tar.bz2 linux-ba7a4754da1092decbeea3b29bf7d5946f1be400.zip | |
rpmsg: glink: Consolidate TX_DATA and TX_DATA_CONT
Rather than duplicating most of the code for constructing the initial
TX_DATA and subsequent TX_DATA_CONT packets, roll them into a single
loop.
Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Reviewed-by: Chris Lew <quic_clew@quicinc.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230418163018.785524-3-quic_bjorande@quicinc.com
Diffstat (limited to 'drivers/rpmsg')
| -rw-r--r-- | drivers/rpmsg/qcom_glink_native.c | 46 |
1 files changed, 13 insertions, 33 deletions
diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c index 916c0dbe4213..1beb40a1d3df 100644 --- a/drivers/rpmsg/qcom_glink_native.c +++ b/drivers/rpmsg/qcom_glink_native.c @@ -1324,7 +1324,7 @@ static int __qcom_glink_send(struct glink_channel *channel, int ret; unsigned long flags; int chunk_size = len; - int left_size = 0; + size_t offset = 0; if (!glink->intentless) { while (!intent) { @@ -1358,49 +1358,29 @@ static int __qcom_glink_send(struct glink_channel *channel, iid = intent->id; } - if (wait && chunk_size > SZ_8K) { - chunk_size = SZ_8K; - left_size = len - chunk_size; - } - req.msg.cmd = cpu_to_le16(GLINK_CMD_TX_DATA); - req.msg.param1 = cpu_to_le16(channel->lcid); - req.msg.param2 = cpu_to_le32(iid); - req.chunk_size = cpu_to_le32(chunk_size); - req.left_size = cpu_to_le32(left_size); - - ret = qcom_glink_tx(glink, &req, sizeof(req), data, chunk_size, wait); - - /* Mark intent available if we failed */ - if (ret) { - if (intent) - intent->in_use = false; - return ret; - } - - while (left_size > 0) { - data = (void *)((char *)data + chunk_size); - chunk_size = left_size; - if (chunk_size > SZ_8K) + while (offset < len) { + chunk_size = len - offset; + if (chunk_size > SZ_8K && wait) chunk_size = SZ_8K; - left_size -= chunk_size; - req.msg.cmd = cpu_to_le16(GLINK_CMD_TX_DATA_CONT); + req.msg.cmd = cpu_to_le16(offset == 0 ? GLINK_CMD_TX_DATA : GLINK_CMD_TX_DATA_CONT); req.msg.param1 = cpu_to_le16(channel->lcid); req.msg.param2 = cpu_to_le32(iid); req.chunk_size = cpu_to_le32(chunk_size); - req.left_size = cpu_to_le32(left_size); + req.left_size = cpu_to_le32(len - offset - chunk_size); - ret = qcom_glink_tx(glink, &req, sizeof(req), data, - chunk_size, wait); - - /* Mark intent available if we failed */ + ret = qcom_glink_tx(glink, &req, sizeof(req), data + offset, chunk_size, wait); if (ret) { + /* Mark intent available if we failed */ if (intent) intent->in_use = false; - break; + return ret; } + + offset += chunk_size; } - return ret; + + return 0; } static int qcom_glink_send(struct rpmsg_endpoint *ept, void *data, int len) |