From: Loic Poulain <loic.poulain@linaro.org>
To: kuba@kernel.org, davem@davemloft.net
Cc: manivannan.sadhasivam@linaro.org, linux-arm-msm@vger.kernel.org,
netdev@vger.kernel.org, jhugo@codeaurora.org,
Loic Poulain <loic.poulain@linaro.org>
Subject: [PATCH v2 2/3] net: mhi: Get RX queue size from MHI core
Date: Thu, 10 Dec 2020 12:15:50 +0100 [thread overview]
Message-ID: <1607598951-2340-2-git-send-email-loic.poulain@linaro.org> (raw)
In-Reply-To: <1607598951-2340-1-git-send-email-loic.poulain@linaro.org>
The RX queue size can be determined at runtime by retrieving the
number of available transfer descriptors.
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
---
v2: Fixed commit message typo
drivers/net/mhi_net.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/net/mhi_net.c b/drivers/net/mhi_net.c
index 8e72d94..0333e07 100644
--- a/drivers/net/mhi_net.c
+++ b/drivers/net/mhi_net.c
@@ -256,9 +256,6 @@ static int mhi_net_probe(struct mhi_device *mhi_dev,
mhi_netdev->mdev = mhi_dev;
SET_NETDEV_DEV(ndev, &mhi_dev->dev);
- /* All MHI net channels have 128 ring elements (at least for now) */
- mhi_netdev->rx_queue_sz = 128;
-
INIT_DELAYED_WORK(&mhi_netdev->rx_refill, mhi_net_rx_refill_work);
u64_stats_init(&mhi_netdev->stats.rx_syncp);
u64_stats_init(&mhi_netdev->stats.tx_syncp);
@@ -268,6 +265,9 @@ static int mhi_net_probe(struct mhi_device *mhi_dev,
if (err)
goto out_err;
+ /* Number of transfer descriptors determines size of the queue */
+ mhi_netdev->rx_queue_sz = mhi_get_free_desc_count(mhi_dev, DMA_FROM_DEVICE);
+
err = register_netdev(ndev);
if (err)
goto out_err;
--
2.7.4
next prev parent reply other threads:[~2020-12-10 11:09 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-10 11:15 [PATCH v2 1/3] bus: mhi: core: Add helper API to return number of free TREs Loic Poulain
2020-12-10 11:15 ` Loic Poulain [this message]
2020-12-11 5:38 ` [PATCH v2 2/3] net: mhi: Get RX queue size from MHI core Manivannan Sadhasivam
2020-12-11 9:40 ` Loic Poulain
2020-12-11 10:15 ` Manivannan Sadhasivam
2020-12-11 10:40 ` Loic Poulain
2020-12-10 11:15 ` [PATCH v2 3/3] net: mhi: Add dedicated alloc thread Loic Poulain
2020-12-12 20:55 ` Jakub Kicinski
2020-12-14 9:19 ` Loic Poulain
2020-12-14 19:47 ` Jakub Kicinski
2020-12-15 12:09 ` Loic Poulain
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