net: Add ethernet FCS length macro in net.h
Some ethernet drivers use their own version of ethernet FCS length macro which is really common. We define ETH_FCS_LEN in net.h and replace those custom versions in various places. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
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@ -430,12 +430,11 @@ struct e1000_phy_stats {
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#define ENET_HEADER_SIZE 14
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#define MAXIMUM_ETHERNET_FRAME_SIZE 1518 /* With FCS */
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#define MINIMUM_ETHERNET_FRAME_SIZE 64 /* With FCS */
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#define ETHERNET_FCS_SIZE 4
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#define MAXIMUM_ETHERNET_PACKET_SIZE \
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(MAXIMUM_ETHERNET_FRAME_SIZE - ETHERNET_FCS_SIZE)
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(MAXIMUM_ETHERNET_FRAME_SIZE - ETH_FCS_LEN)
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#define MINIMUM_ETHERNET_PACKET_SIZE \
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(MINIMUM_ETHERNET_FRAME_SIZE - ETHERNET_FCS_SIZE)
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#define CRC_LENGTH ETHERNET_FCS_SIZE
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(MINIMUM_ETHERNET_FRAME_SIZE - ETH_FCS_LEN)
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#define CRC_LENGTH ETH_FCS_LEN
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#define MAX_JUMBO_FRAME_SIZE 0x3F00
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/* 802.1q VLAN Packet Sizes */
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@ -68,7 +68,6 @@ unsigned packet_received, packet_sent;
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#define ETH_ZLEN 60 /* Min. octets in frame sans FCS */
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#define ETH_DATA_LEN 1500 /* Max. octets in payload */
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#define ETH_FRAME_LEN PKTSIZE_ALIGN /* Max. octets in frame sans FCS */
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#define ETH_FCS_LEN 4 /* Octets in the FCS */
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#define DRIVER_DESC "Ethernet Gadget"
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/* Based on linux 2.6.27 version */
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@ -43,7 +43,6 @@
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#define ETH_ZLEN 60 /* Min. octets in frame sans FCS */
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#define ETH_DATA_LEN 1500 /* Max. octets in payload */
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#define ETH_FRAME_LEN PKTSIZE_ALIGN /* Max. octets in frame sans FCS */
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#define ETH_FCS_LEN 4 /* Octets in the FCS */
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#define ENOTSUPP 524 /* Operation is not supported */
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@ -191,6 +191,8 @@ struct ethernet_hdr {
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/* Ethernet header size */
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#define ETHER_HDR_SIZE (sizeof(struct ethernet_hdr))
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#define ETH_FCS_LEN 4 /* Octets in the FCS */
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struct e802_hdr {
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uchar et_dest[6]; /* Destination node */
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uchar et_src[6]; /* Source node */
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@ -18,7 +18,6 @@
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#define ETH_ZLEN 60 /* Min. octets in frame sans FCS */
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#define ETH_DATA_LEN 1500 /* Max. octets in payload */
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#define ETH_FRAME_LEN PKTSIZE_ALIGN /* Max. octets in frame sans FCS */
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#define ETH_FCS_LEN 4 /* Octets in the FCS */
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struct ueth_data {
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/* eth info */
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