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From: Jose Abreu <Jose.Abreu@synopsys.com>
To: netdev@vger.kernel.org
Cc: Joao Pinto <Joao.Pinto@synopsys.com>,
	Jakub Kicinski <jakub.kicinski@netronome.com>,
	Jose Abreu <Jose.Abreu@synopsys.com>,
	Giuseppe Cavallaro <peppe.cavallaro@st.com>,
	Alexandre Torgue <alexandre.torgue@st.com>,
	"David S. Miller" <davem@davemloft.net>,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	linux-stm32@st-md-mailman.stormreply.com,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH net-next v3 03/12] net: stmmac: xgmac: Correctly return that RX descriptor is not last one
Date: Sat, 17 Aug 2019 20:54:42 +0200
Message-ID: <6d563e40fd326f61cc104ab455264b49c77e569b.1566067802.git.joabreu@synopsys.com> (raw)
In-Reply-To: <cover.1566067802.git.joabreu@synopsys.com>

Return the correct value when RX descriptor is not the last one.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>

---
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: Jose Abreu <joabreu@synopsys.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: netdev@vger.kernel.org
Cc: linux-stm32@st-md-mailman.stormreply.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
---
 drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c
index 58b69fa97837..2c1ed8c2a9d3 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c
@@ -26,16 +26,15 @@ static int dwxgmac2_get_rx_status(void *data, struct stmmac_extra_stats *x,
 				  struct dma_desc *p)
 {
 	unsigned int rdes3 = le32_to_cpu(p->des3);
-	int ret = good_frame;
 
 	if (unlikely(rdes3 & XGMAC_RDES3_OWN))
 		return dma_own;
 	if (likely(!(rdes3 & XGMAC_RDES3_LD)))
+		return rx_not_ls;
+	if (unlikely((rdes3 & XGMAC_RDES3_ES) && (rdes3 & XGMAC_RDES3_LD)))
 		return discard_frame;
-	if (unlikely(rdes3 & XGMAC_RDES3_ES))
-		ret = discard_frame;
 
-	return ret;
+	return good_frame;
 }
 
 static int dwxgmac2_get_tx_len(struct dma_desc *p)
-- 
2.7.4


  parent reply index

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-17 18:54 [PATCH net-next v3 00/12] net: stmmac: Improvements for -next Jose Abreu
2019-08-17 18:54 ` [PATCH net-next v3 01/12] net: stmmac: Get correct timestamp values from XGMAC Jose Abreu
2019-08-17 18:54 ` [PATCH net-next v3 02/12] net: stmmac: Prepare to add Split Header support Jose Abreu
2019-08-17 18:54 ` Jose Abreu [this message]
2019-08-17 18:54 ` [PATCH net-next v3 04/12] net: stmmac: Add Split Header support and enable it in XGMAC cores Jose Abreu
2019-08-17 18:54 ` [PATCH net-next v3 05/12] net: stmmac: Add a counter for Split Header packets Jose Abreu
2019-08-17 18:54 ` [PATCH net-next v3 06/12] net: stmmac: dwxgmac: Add Flexible PPS support Jose Abreu
2019-08-17 18:54 ` [PATCH net-next v3 07/12] net: stmmac: Add ethtool register dump for XGMAC cores Jose Abreu
2019-08-17 18:54 ` [PATCH net-next v3 08/12] net: stmmac: Add support for SA Insertion/Replacement in " Jose Abreu
2019-08-17 18:54 ` [PATCH net-next v3 09/12] net: stmmac: selftests: Add tests for SA Insertion/Replacement Jose Abreu
2019-08-17 18:54 ` [PATCH net-next v3 10/12] net: stmmac: xgmac: Add EEE support Jose Abreu
2019-08-17 18:54 ` [PATCH net-next v3 11/12] net: stmmac: Add support for VLAN Insertion Offload Jose Abreu
2019-08-17 18:54 ` [PATCH net-next v3 12/12] net: stmmac: selftests: Add selftest for VLAN TX Offload Jose Abreu
2019-08-17 19:44 ` [PATCH net-next v3 00/12] net: stmmac: Improvements for -next David Miller

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