[openib-general] Re: [PATCH] IPoIB splitting CQ, increase both send/recv poll NUM_WC & interval

[Roland Dreier]

 > struct ipoib_rx_buf *rx_ring    ____cacheline_aligned_in_smp;
 > struct ib_wc recv_ibwc[IPOIB_NUM_RECV_WC];
 >  
 > spinlock_t           tx_lock;  ____cacheline_aligned_in_smp;
 > struct ipoib_tx_buf *tx_ring; 
 > unsigned             tx_head;
 > unsigned             tx_tail;
 > struct ib_sge        tx_sge;
 > struct ib_send_wr    tx_wr;
 > struct ib_wc ibwc[IPOIB_NUM_WC];

Yes, that looks like the best thing to me.  You have no false sharing
between RX and TX, and things are laid out as compactly as possible.

 - R.