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From: laurentiu.tudor@nxp.com
To: devicetree@vger.kernel.org, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Cc: roy.pledge@nxp.com, madalin.bucur@nxp.com, davem@davemloft.net,
	shawnguo@kernel.org, leoyang.li@nxp.com, robin.murphy@arm.com,
	bharat.bhushan@nxp.com, Laurentiu Tudor <laurentiu.tudor@nxp.com>
Subject: [PATCH v2 15/22] dpaa_eth: fix SG frame cleanup
Date: Wed, 26 Sep 2018 16:22:40 +0300	[thread overview]
Message-ID: <20180926132247.10971-16-laurentiu.tudor@nxp.com> (raw)
In-Reply-To: <20180926132247.10971-1-laurentiu.tudor@nxp.com>

From: Laurentiu Tudor <laurentiu.tudor@nxp.com>

Fix issue with the entry indexing in the sg frame cleanup code being
off-by-1. This problem showed up when doing some basic iperf tests and
manifested in traffic coming to a halt.

Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
---
 drivers/net/ethernet/freescale/dpaa/dpaa_eth.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
index 8db861f281a0..605f06f0def8 100644
--- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
+++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
@@ -1663,7 +1663,7 @@ static struct sk_buff *dpaa_cleanup_tx_fd(const struct dpaa_priv *priv,
 				 qm_sg_entry_get_len(&sgt[0]), dma_dir);
 
 		/* remaining pages were mapped with skb_frag_dma_map() */
-		for (i = 1; i < nr_frags; i++) {
+		for (i = 1; i <= nr_frags; i++) {
 			WARN_ON(qm_sg_entry_is_ext(&sgt[i]));
 
 			dma_unmap_page(dev, qm_sg_addr(&sgt[i]),
-- 
2.17.1


  parent reply	other threads:[~2018-09-26 13:23 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-26 13:22 [PATCH v2 00/22] SMMU enablement for NXP LS1043A and LS1046A laurentiu.tudor
2018-09-26 13:22 ` [PATCH v2 01/22] soc/fsl/qman: fixup liodns only on ppc targets laurentiu.tudor
2018-09-26 13:22 ` [PATCH v2 02/22] soc/fsl/bman: map FBPR area in the iommu laurentiu.tudor
2018-09-26 13:22 ` [PATCH v2 03/22] soc/fsl/qman: map FQD and PFDR areas " laurentiu.tudor
2018-09-26 13:22 ` [PATCH v2 04/22] soc/fsl/qman-portal: map CENA area " laurentiu.tudor
2018-09-26 13:22 ` [PATCH v2 05/22] soc/fsl/qbman: add APIs to retrieve the probing status laurentiu.tudor
2018-09-27 20:37   ` Li Yang
2018-09-26 13:22 ` [PATCH v2 06/22] soc/fsl/qman_portals: defer probe after qman's probe laurentiu.tudor
2018-09-27 20:37   ` Li Yang
2018-09-26 13:22 ` [PATCH v2 07/22] soc/fsl/bman_portals: defer probe after bman's probe laurentiu.tudor
2018-09-27 20:40   ` Li Yang
2018-09-26 13:22 ` [PATCH v2 08/22] soc/fsl/qbman_portals: add APIs to retrieve the probing status laurentiu.tudor
2018-09-27 20:03   ` Li Yang
2018-10-03 10:50     ` Laurentiu Tudor
2018-10-03 12:27       ` Robin Murphy
2018-09-26 13:22 ` [PATCH v2 09/22] fsl/fman: backup and restore ICID registers laurentiu.tudor
2018-09-26 13:22 ` [PATCH v2 10/22] fsl/fman: add API to get the device behind a fman port laurentiu.tudor
2018-09-26 13:22 ` [PATCH v2 11/22] dpaa_eth: defer probing after qbman laurentiu.tudor
2018-09-26 13:22 ` [PATCH v2 12/22] dpaa_eth: base dma mappings on the fman rx port laurentiu.tudor
2018-09-26 13:22 ` [PATCH v2 13/22] dpaa_eth: fix iova handling for contiguous frames laurentiu.tudor
2018-09-26 13:22 ` [PATCH v2 14/22] dpaa_eth: fix iova handling for sg frames laurentiu.tudor
2018-09-26 13:22 ` laurentiu.tudor [this message]
2018-09-26 13:22 ` [PATCH v2 16/22] arm64: dts: ls1046a: add smmu node laurentiu.tudor
2018-09-26 13:22 ` [PATCH v2 17/22] arm64: dts: ls1043a: " laurentiu.tudor
2018-09-26 13:22 ` [PATCH v2 18/22] arm64: dts: ls104xa: set mask to drop TBU ID from StreamID laurentiu.tudor
2018-09-26 13:22 ` [PATCH v2 19/22] arm64: dts: ls104x: add missing dma ranges property laurentiu.tudor
2018-09-26 13:22 ` [PATCH v2 20/22] arm64: dts: ls104x: add iommu-map to pci controllers laurentiu.tudor
2018-09-26 13:22 ` [PATCH v2 21/22] arm64: dts: ls104x: make dma-coherent global to the SoC laurentiu.tudor
2018-09-26 13:22 ` [PATCH v2 22/22] arm64: dts: ls104x: use a pseudo-bus to constrain usb dma size laurentiu.tudor
2018-09-27 13:39 ` [PATCH v2 00/22] SMMU enablement for NXP LS1043A and LS1046A Madalin-cristian Bucur

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