[v6,7/8] hw/net: sungem: Remove the logic of padding short frames in the receive path

Commit Message

Bin Meng March 1, 2023, 9:02 a.m. UTC

From: Bin Meng <[e-mail]>

Now that we have implemented unified short frames padding in the
QEMU networking codes, remove the same logic in the NIC codes.

Signed-off-by: Bin Meng <[e-mail]>
Signed-off-by: Bin Meng <[e-mail]>
---

 hw/net/sungem.c | 14 --------------
 1 file changed, 14 deletions(-)

Patch

diff --git a/hw/net/sungem.c b/hw/net/sungem.c
index eb01520790..103376c133 100644
--- a/hw/net/sungem.c
+++ b/hw/net/sungem.c
@@ -550,7 +550,6 @@  static ssize_t sungem_receive(NetClientState *nc, const uint8_t *buf,
     PCIDevice *d = PCI_DEVICE(s);
     uint32_t mac_crc, done, kick, max_fsize;
     uint32_t fcs_size, ints, rxdma_cfg, rxmac_cfg, csum, coff;
-    uint8_t smallbuf[60];
     struct gem_rxd desc;
     uint64_t dbase, baddr;
     unsigned int rx_cond;
@@ -584,19 +583,6 @@  static ssize_t sungem_receive(NetClientState *nc, const uint8_t *buf,
         return size;
     }
 
-    /* We don't drop too small frames since we get them in qemu, we pad
-     * them instead. We should probably use the min frame size register
-     * but I don't want to use a variable size staging buffer and I
-     * know both MacOS and Linux use the default 64 anyway. We use 60
-     * here to account for the non-existent FCS.
-     */
-    if (size < 60) {
-        memcpy(smallbuf, buf, size);
-        memset(&smallbuf[size], 0, 60 - size);
-        buf = smallbuf;
-        size = 60;
-    }
-
     /* Get MAC crc */
     mac_crc = net_crc32_le(buf, ETH_ALEN);