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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>,
	Jose Abreu <Jose.Abreu@synopsys.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 v2 7/8] net: stmmac: 16KB buffer must be 16 byte aligned
Date: Tue, 17 Dec 2019 12:42:37 +0100	[thread overview]
Message-ID: <83241d7ac5df5c39711a666403ee36b68029a01a.1576581853.git.Jose.Abreu@synopsys.com> (raw)
In-Reply-To: <cover.1576581853.git.Jose.Abreu@synopsys.com>
In-Reply-To: <cover.1576581853.git.Jose.Abreu@synopsys.com>

The 16KB RX Buffer must also be 16 byte aligned. Fix it.

Fixes: 7ac6653a085b ("stmmac: Move the STMicroelectronics driver")
Signed-off-by: Jose Abreu <Jose.Abreu@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/common.h | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h
index b210e987a1db..94f94686cf7d 100644
--- a/drivers/net/ethernet/stmicro/stmmac/common.h
+++ b/drivers/net/ethernet/stmicro/stmmac/common.h
@@ -365,9 +365,8 @@ struct dma_features {
 	unsigned int arpoffsel;
 };
 
-/* GMAC TX FIFO is 8K, Rx FIFO is 16K */
-#define BUF_SIZE_16KiB 16384
-/* RX Buffer size must be < 8191 and multiple of 4/8/16 bytes */
+/* RX Buffer size must be multiple of 4/8/16 bytes */
+#define BUF_SIZE_16KiB 16368
 #define BUF_SIZE_8KiB 8188
 #define BUF_SIZE_4KiB 4096
 #define BUF_SIZE_2KiB 2048
-- 
2.7.4


  parent reply	other threads:[~2019-12-17 11:42 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-17 11:42 [PATCH net v2 0/8] net: stmmac: Fixes for -net Jose Abreu
2019-12-17 11:42 ` [PATCH net v2 1/8] net: stmmac: selftests: Needs to check the number of Multicast regs Jose Abreu
2019-12-17 11:42 ` [PATCH net v2 2/8] net: stmmac: Determine earlier the size of RX buffer Jose Abreu
2019-12-17 11:42 ` [PATCH net v2 3/8] net: stmmac: Do not accept invalid MTU values Jose Abreu
2019-12-17 11:42 ` [PATCH net v2 4/8] net: stmmac: Only the last buffer has the FCS field Jose Abreu
2019-12-17 11:42 ` [PATCH net v2 5/8] net: stmmac: xgmac: Clear previous RX buffer size Jose Abreu
2019-12-17 11:42 ` [PATCH net v2 6/8] net: stmmac: RX buffer size must be 16 byte aligned Jose Abreu
2019-12-18  6:56   ` David Miller
2019-12-17 11:42 ` Jose Abreu [this message]
2019-12-17 11:42 ` [PATCH net v2 8/8] net: stmmac: Enable 16KB buffer size Jose Abreu

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