cxgb4: LE-Workaround is not atomic in firmware
The LE workaround in firmware is not atomic and fw_ofld_connection_wrs must not interleave. Therefore, when the workaround is enabled, we need to send all ctrlq WRs on a single ctrl queue. Based on original work by Santosh Rastapur <santosh@chelsio.com> Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -1467,8 +1467,12 @@ static inline int ofld_send(struct adapter *adap, struct sk_buff *skb)
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{
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unsigned int idx = skb_txq(skb);
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if (unlikely(is_ctrl_pkt(skb)))
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if (unlikely(is_ctrl_pkt(skb))) {
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/* Single ctrl queue is a requirement for LE workaround path */
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if (adap->tids.nsftids)
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idx = 0;
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return ctrl_xmit(&adap->sge.ctrlq[idx], skb);
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}
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return ofld_xmit(&adap->sge.ofldtxq[idx], skb);
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}
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