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/openbmc/linux/drivers/net/ethernet/broadcom/bnx2x/ |
H A D | bnx2x_cmn.c | diff 9969085e7e1db68275ddfe594eac21563427fb55 Sun Jan 13 23:11:49 CST 2013 Yuval Mintz <yuvalmin@broadcom.com> bnx2x: Added FW GRO bridging support
Since submit 621b4d6 the bnx2x driver support FW GRO. However, when using the device with GRO enabled in bridging scenarios throughput is very low, as the bridge expects all incoming packets to be passed with CHECKSUM_PARTIAL - a demand which is satisfied by the SW GRO implementation, but was missed in the bnx2x driver implementation (which returned CHECKSUM_UNNECESSARY).
Now, given that the traffic is supported by FW GRO (TCP/IP), the bnx2x driver calculates the pseudo checksum by itself, passing skbs with CHECKSUM_PARTIAL and giving a much better throughput when receiving GRO traffic.
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: Ariel Elior <ariele@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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