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authorJason Wang <jasowang@redhat.com>2012-03-05 11:08:50 +0800
committerMichael S. Tsirkin <mst@redhat.com>2012-03-16 01:04:51 +0200
commit7fc8d918b9674c3e9233d6d25da2457345d414a0 (patch)
treea834bd8e25277d2f6d5018945f2b64dfb7d602fe /hw
parentafe0a595356192d5f79703cf6462fcc112df007c (diff)
net: move compute_mcast_idx() to net.h
Reduce duplicated codes. Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw')
-rw-r--r--hw/eepro100.c25
-rw-r--r--hw/ne2000.c24
-rw-r--r--hw/opencores_eth.c25
-rw-r--r--hw/rtl8139.c24
4 files changed, 0 insertions, 98 deletions
diff --git a/hw/eepro100.c b/hw/eepro100.c
index e3ba71974e..02e6f7ef31 100644
--- a/hw/eepro100.c
+++ b/hw/eepro100.c
@@ -322,33 +322,8 @@ static const uint16_t eepro100_mdi_mask[] = {
0xffff, 0xffff, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
};
-#define POLYNOMIAL 0x04c11db6
-
static E100PCIDeviceInfo *eepro100_get_class(EEPRO100State *s);
-/* From FreeBSD */
-/* XXX: optimize */
-static unsigned compute_mcast_idx(const uint8_t * ep)
-{
- uint32_t crc;
- int carry, i, j;
- uint8_t b;
-
- crc = 0xffffffff;
- for (i = 0; i < 6; i++) {
- b = *ep++;
- for (j = 0; j < 8; j++) {
- carry = ((crc & 0x80000000L) ? 1 : 0) ^ (b & 0x01);
- crc <<= 1;
- b >>= 1;
- if (carry) {
- crc = ((crc ^ POLYNOMIAL) | carry);
- }
- }
- }
- return (crc & BITS(7, 2)) >> 2;
-}
-
/* Read a 16 bit control/status (CSR) register. */
static uint16_t e100_read_reg2(EEPRO100State *s, E100RegisterOffset addr)
{
diff --git a/hw/ne2000.c b/hw/ne2000.c
index 71452e1f2e..d02e60c4a6 100644
--- a/hw/ne2000.c
+++ b/hw/ne2000.c
@@ -150,30 +150,6 @@ static void ne2000_update_irq(NE2000State *s)
qemu_set_irq(s->irq, (isr != 0));
}
-#define POLYNOMIAL 0x04c11db6
-
-/* From FreeBSD */
-/* XXX: optimize */
-static int compute_mcast_idx(const uint8_t *ep)
-{
- uint32_t crc;
- int carry, i, j;
- uint8_t b;
-
- crc = 0xffffffff;
- for (i = 0; i < 6; i++) {
- b = *ep++;
- for (j = 0; j < 8; j++) {
- carry = ((crc & 0x80000000L) ? 1 : 0) ^ (b & 0x01);
- crc <<= 1;
- b >>= 1;
- if (carry)
- crc = ((crc ^ POLYNOMIAL) | carry);
- }
- }
- return (crc >> 26);
-}
-
static int ne2000_buffer_full(NE2000State *s)
{
int avail, index, boundary;
diff --git a/hw/opencores_eth.c b/hw/opencores_eth.c
index 4c7696935f..350f73173a 100644
--- a/hw/opencores_eth.c
+++ b/hw/opencores_eth.c
@@ -351,31 +351,6 @@ static int open_eth_can_receive(VLANClientState *nc)
(rx_desc(s)->len_flags & RXD_E);
}
-#define POLYNOMIAL 0x04c11db6
-
-/* From FreeBSD */
-/* XXX: optimize */
-static unsigned compute_mcast_idx(const uint8_t *ep)
-{
- uint32_t crc;
- int carry, i, j;
- uint8_t b;
-
- crc = 0xffffffff;
- for (i = 0; i < 6; i++) {
- b = *ep++;
- for (j = 0; j < 8; j++) {
- carry = ((crc & 0x80000000L) ? 1 : 0) ^ (b & 0x01);
- crc <<= 1;
- b >>= 1;
- if (carry) {
- crc = ((crc ^ POLYNOMIAL) | carry);
- }
- }
- }
- return crc >> 26;
-}
-
static ssize_t open_eth_receive(VLANClientState *nc,
const uint8_t *buf, size_t size)
{
diff --git a/hw/rtl8139.c b/hw/rtl8139.c
index 1d5f78bbee..5b608f53ec 100644
--- a/hw/rtl8139.c
+++ b/hw/rtl8139.c
@@ -708,30 +708,6 @@ static void rtl8139_update_irq(RTL8139State *s)
qemu_set_irq(s->dev.irq[0], (isr != 0));
}
-#define POLYNOMIAL 0x04c11db6
-
-/* From FreeBSD */
-/* XXX: optimize */
-static int compute_mcast_idx(const uint8_t *ep)
-{
- uint32_t crc;
- int carry, i, j;
- uint8_t b;
-
- crc = 0xffffffff;
- for (i = 0; i < 6; i++) {
- b = *ep++;
- for (j = 0; j < 8; j++) {
- carry = ((crc & 0x80000000L) ? 1 : 0) ^ (b & 0x01);
- crc <<= 1;
- b >>= 1;
- if (carry)
- crc = ((crc ^ POLYNOMIAL) | carry);
- }
- }
- return (crc >> 26);
-}
-
static int rtl8139_RxWrap(RTL8139State *s)
{
/* wrapping enabled; assume 1.5k more buffer space if size < 65536 */