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hw/net/e1000: Don't use *_to_cpup() 

Don't use *_to_cpup() to do byte-swapped loads; instead use
ld*_p() which correctly handle misaligned accesses.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Acked-by: Jason Wang <jasowang@redhat.com>
Acked-by: Dmitry Fleytman <dmitry@daynix.com <mailto:dmitry@daynix.com>>
Message-id: 1466097446-981-6-git-send-email-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2016-06-16 18:17:26 +01:00
parent 7542d3e706
commit 14e60aaece
3 changed files with 13 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
hw/net/e1000.c
View File

@ -536,7 +536,7 @@ e1000_send_packet(E1000State *s, const uint8_t *buf, int size)
static void
xmit_seg(E1000State *s)
{
uint16_t len, *sp;
uint16_t len;
unsigned int frames = s->tx.tso_frames, css, sofar;
struct e1000_tx *tp = &s->tx;
@ -547,7 +547,7 @@ xmit_seg(E1000State *s)
if (tp->props.ip) { /* IPv4 */
stw_be_p(tp->data+css+2, tp->size - css);
stw_be_p(tp->data+css+4,
be16_to_cpup((uint16_t *)(tp->data+css+4))+frames);
lduw_be_p(tp->data + css + 4) + frames);
} else { /* IPv6 */
stw_be_p(tp->data+css+4, tp->size - css);
}
@ -567,8 +567,9 @@ xmit_seg(E1000State *s)
if (tp->props.sum_needed & E1000_TXD_POPTS_TXSM) {
unsigned int phsum;
// add pseudo-header length before checksum calculation
sp = (uint16_t *)(tp->data + tp->props.tucso);
phsum = be16_to_cpup(sp) + len;
void *sp = tp->data + tp->props.tucso;
phsum = lduw_be_p(sp) + len;
phsum = (phsum >> 16) + (phsum & 0xffff);
stw_be_p(sp, phsum);
}
@ -759,8 +760,8 @@ receive_filter(E1000State *s, const uint8_t *buf, int size)
if (e1000x_is_vlan_packet(buf, le16_to_cpu(s->mac_reg[VET])) &&
e1000x_vlan_rx_filter_enabled(s->mac_reg)) {
uint16_t vid = be16_to_cpup((uint16_t *)(buf + 14));
uint32_t vfta = le32_to_cpup((uint32_t *)(s->mac_reg + VFTA) +
uint16_t vid = lduw_be_p(buf + 14);
uint32_t vfta = ldl_le_p((uint32_t*)(s->mac_reg + VFTA) +
((vid >> 5) & 0x7f));
if ((vfta & (1 << (vid & 0x1f))) == 0)
return 0;
@ -889,8 +890,7 @@ e1000_receive_iov(NetClientState *nc, const struct iovec *iov, int iovcnt)
if (e1000x_vlan_enabled(s->mac_reg) &&
e1000x_is_vlan_packet(filter_buf, le16_to_cpu(s->mac_reg[VET]))) {
vlan_special = cpu_to_le16(be16_to_cpup((uint16_t *)(filter_buf
+ 14)));
vlan_special = cpu_to_le16(lduw_be_p(filter_buf + 14));
iov_ofs = 4;
if (filter_buf == iov->iov_base) {
memmove(filter_buf + 4, filter_buf, 12);

4
hw/net/e1000e_core.c
View File

@ -1019,8 +1019,8 @@ e1000e_receive_filter(E1000ECore *core, const uint8_t *buf, int size)
if (e1000x_is_vlan_packet(buf, core->vet) &&
e1000x_vlan_rx_filter_enabled(core->mac)) {
uint16_t vid = be16_to_cpup((uint16_t *)(buf + 14));
uint32_t vfta = le32_to_cpup((uint32_t *)(core->mac + VFTA) +
uint16_t vid = lduw_be_p(buf + 14);
uint32_t vfta = ldl_le_p((uint32_t *)(core->mac + VFTA) +
((vid >> 5) & 0x7f));
if ((vfta & (1 << (vid & 0x1f))) == 0) {
trace_e1000e_rx_flt_vlan_mismatch(vid);

2
hw/net/e1000x_common.c
View File

@ -47,7 +47,7 @@ bool e1000x_rx_ready(PCIDevice *d, uint32_t *mac)
bool e1000x_is_vlan_packet(const uint8_t *buf, uint16_t vet)
{
uint16_t eth_proto = be16_to_cpup((uint16_t *)(buf + 12));
uint16_t eth_proto = lduw_be_p(buf + 12);
bool res = (eth_proto == vet);
trace_e1000x_vlan_is_vlan_pkt(res, eth_proto, vet);