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sungem: fix multicast filter CRC calculation

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From the Linux sungem driver, we know that the multicast filter CRC is
implemented using ether_crc_le() which isn't the same as calling zlib's
crc32() function (the zlib implementation requires a complemented initial value
and also returns the complemented result).

Fix the multicast filter by simply using the new net_crc32_le() function.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Mark Cave-Ayland 2017-12-15 18:41:48 +00:00 committed by Jason Wang
parent a89a6b052a
commit 8f90bc2f8f
1 changed files with 2 additions and 3 deletions
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5
hw/net/sungem.c
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@ -11,12 +11,11 @@
#include "hw/pci/pci.h"
#include "qemu/log.h"
#include "net/net.h"
#include "net/eth.h"
#include "net/checksum.h"
#include "hw/net/mii.h"
#include "sysemu/sysemu.h"
#include "trace.h"
/* For crc32 */
#include <zlib.h>
#define TYPE_SUNGEM "sungem"
@ -595,7 +594,7 @@ static ssize_t sungem_receive(NetClientState *nc, const uint8_t *buf,
}
/* Get MAC crc */
mac_crc = crc32(~0, buf, 6);
mac_crc = net_crc32_le(buf, ETH_ALEN);
/* Packet isn't for me ? */
rx_cond = sungem_check_rx_mac(s, buf, mac_crc);