From: Finn Thain <fthain@telegraphics.com.au>
To: Jason Wang <jasowang@redhat.com>, qemu-devel@nongnu.org
Cc: Aleksandar Rikalo <aleksandar.rikalo@rt-rk.com>,
Herve Poussineau <hpoussin@reactos.org>,
Laurent Vivier <laurent@vivier.eu>,
qemu-stable@nongnu.org
Subject: [PATCH 10/10] dp8393x: Don't clobber packet checksum
Date: Sat, 14 Dec 2019 12:25:57 +1100 [thread overview]
Message-ID: <25b17f31c0bf60f6f1a2915709e9ee2d57f7f230.1576286757.git.fthain@telegraphics.com.au> (raw)
In-Reply-To: <cover.1576286757.git.fthain@telegraphics.com.au>
A received packet consumes pkt_size bytes in the buffer and the frame
checksum that's appended to it consumes another 4 bytes. The Receive
Buffer Address register takes the former quantity into account but
not the latter. So the next packet written to the buffer overwrites
the frame checksum. Fix this.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
---
hw/net/dp8393x.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/hw/net/dp8393x.c b/hw/net/dp8393x.c
index 8e66b1f5de..9f4162c98c 100644
--- a/hw/net/dp8393x.c
+++ b/hw/net/dp8393x.c
@@ -810,6 +810,7 @@ static ssize_t dp8393x_receive(NetClientState *nc, const uint8_t * buf,
address += rx_len;
address_space_rw(&s->as, address,
MEMTXATTRS_UNSPECIFIED, (uint8_t *)&checksum, 4, 1);
+ address += 4;
rx_len += 4;
s->regs[SONIC_CRBA1] = address >> 16;
s->regs[SONIC_CRBA0] = address & 0xffff;
--
2.23.0
next prev parent reply other threads:[~2019-12-14 1:33 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-14 1:25 [PATCH 00/10] Fixes for DP8393X SONIC device emulation Finn Thain
2019-12-14 1:25 ` [PATCH 08/10] dp8393x: Implement packet size limit and RBAE interrupt Finn Thain
2019-12-14 1:25 ` [PATCH 09/10] dp8393x: Don't stop reception upon RBE interrupt assertion Finn Thain
2019-12-14 1:25 ` [PATCH 06/10] dp8393x: Clear RRRA command register bit only when appropriate Finn Thain
2019-12-14 13:31 ` Philippe Mathieu-Daudé
2019-12-14 1:25 ` [PATCH 02/10] dp8393x: Clean up endianness hacks Finn Thain
2019-12-14 1:25 ` [PATCH 05/10] dp8393x: Update LLFA register Finn Thain
2019-12-14 1:25 ` Finn Thain [this message]
2019-12-14 13:21 ` [PATCH 10/10] dp8393x: Don't clobber packet checksum Philippe Mathieu-Daudé
2019-12-14 1:25 ` [PATCH 07/10] dp8393x: Implement TBWC0 and TBWC1 registers to restore buffer state Finn Thain
2019-12-14 1:25 ` [PATCH 01/10] dp8393x: Mask EOL bit from descriptor addresses Finn Thain
2019-12-14 13:35 ` Philippe Mathieu-Daudé
2019-12-14 23:21 ` Finn Thain
2019-12-14 1:25 ` [PATCH 04/10] dp8393x: Don't advance RX descriptor twice Finn Thain
2019-12-14 1:25 ` [PATCH 03/10] dp8393x: Have dp8393x_receive() return the packet size Finn Thain
2019-12-14 13:26 ` Philippe Mathieu-Daudé
2019-12-14 1:43 ` [PATCH 00/10] Fixes for DP8393X SONIC device emulation no-reply
2019-12-14 2:52 ` Finn Thain
2019-12-14 13:38 ` Philippe Mathieu-Daudé
2019-12-14 13:45 ` Eric Blake
2019-12-14 17:17 ` Aleksandar Markovic
2019-12-14 23:16 ` Finn Thain
2019-12-14 23:32 ` Aleksandar Markovic
2019-12-14 23:35 ` Aleksandar Markovic
2019-12-20 4:24 ` Finn Thain
2019-12-23 17:17 ` Philippe Mathieu-Daudé
2019-12-24 0:12 ` NetBSD/arc on MIPS Magnum, was " Finn Thain
2019-12-24 4:33 ` Finn Thain
2019-12-24 6:53 ` Hervé Poussineau
2020-01-06 22:15 ` Finn Thain
2019-12-16 0:36 ` Finn Thain
2019-12-20 4:21 ` Finn Thain
2019-12-20 11:38 ` Aleksandar Markovic
2019-12-20 12:03 ` Aleksandar Markovic
2019-12-20 12:54 ` Laurent Vivier
2019-12-20 23:22 ` Finn Thain
2019-12-21 12:03 ` Aleksandar Markovic
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