diff options
Diffstat (limited to 'hw/net/e1000.c')
| -rw-r--r-- | hw/net/e1000.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/hw/net/e1000.c b/hw/net/e1000.c index e6f46f0c51..620f947134 100644 --- a/hw/net/e1000.c +++ b/hw/net/e1000.c @@ -556,7 +556,7 @@ process_tx_desc(E1000State *s, struct e1000_tx_desc *dp) uint32_t txd_lower = le32_to_cpu(dp->lower.data); uint32_t dtype = txd_lower & (E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D); unsigned int split_size = txd_lower & 0xffff, bytes, sz, op; - unsigned int msh = 0xfffff, hdr = 0; + unsigned int msh = 0xfffff; uint64_t addr; struct e1000_context_desc *xp = (struct e1000_context_desc *)dp; struct e1000_tx *tp = &s->tx; @@ -603,8 +603,7 @@ process_tx_desc(E1000State *s, struct e1000_tx_desc *dp) addr = le64_to_cpu(dp->buffer_addr); if (tp->tse && tp->cptse) { - hdr = tp->hdr_len; - msh = hdr + tp->mss; + msh = tp->hdr_len + tp->mss; do { bytes = split_size; if (tp->size + bytes > msh) @@ -612,14 +611,16 @@ process_tx_desc(E1000State *s, struct e1000_tx_desc *dp) bytes = MIN(sizeof(tp->data) - tp->size, bytes); pci_dma_read(&s->dev, addr, tp->data + tp->size, bytes); - if ((sz = tp->size + bytes) >= hdr && tp->size < hdr) - memmove(tp->header, tp->data, hdr); + sz = tp->size + bytes; + if (sz >= tp->hdr_len && tp->size < tp->hdr_len) { + memmove(tp->header, tp->data, tp->hdr_len); + } tp->size = sz; addr += bytes; if (sz == msh) { xmit_seg(s); - memmove(tp->data, tp->header, hdr); - tp->size = hdr; + memmove(tp->data, tp->header, tp->hdr_len); + tp->size = tp->hdr_len; } } while (split_size -= bytes); } else if (!tp->tse && tp->cptse) { @@ -633,8 +634,9 @@ process_tx_desc(E1000State *s, struct e1000_tx_desc *dp) if (!(txd_lower & E1000_TXD_CMD_EOP)) return; - if (!(tp->tse && tp->cptse && tp->size < hdr)) + if (!(tp->tse && tp->cptse && tp->size < tp->hdr_len)) { xmit_seg(s); + } tp->tso_frames = 0; tp->sum_needed = 0; tp->vlan_needed = 0; |