diff mbox series

[RFC,v3,09/10] hw/net: sungem: Remove the logic of padding short frames in the receive path

Message ID 20210303191205.1656980-10-philmd@redhat.com (mailing list archive)
State New, archived
Headers show
Series net: Handle short frames for SLiRP/TAP interfaces | expand

Commit Message

Philippe Mathieu-Daudé March 3, 2021, 7:12 p.m. UTC
From: Bin Meng <bin.meng@windriver.com>

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 <bin.meng@windriver.com>
Message-Id: <1614763306-18026-9-git-send-email-bmeng.cn@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 hw/net/sungem.c | 14 --------------
 1 file changed, 14 deletions(-)
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Patch

diff --git a/hw/net/sungem.c b/hw/net/sungem.c
index 33c3722df6f..3fa83168db0 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);