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nfp: restore correct ordering of fields in rx ring structure

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Commit 7f1c684a8966 ("nfp: setup xdp_rxq_info") mixed the cache
cold and cache hot data in the nfp_net_rx_ring structure (ignoring
the feedback), to try to fit the structure into 2 cache lines
after struct xdp_rxq_info was added.  Now that we are about to add
a new field the structure will grow back to 3 cache lines, so
order the members correctly.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2018-07-25 19:40:36 -07:00 committed by David S. Miller
parent 4662717038
commit e76c1d3d2a
1 changed files with 4 additions and 3 deletions
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7
drivers/net/ethernet/netronome/nfp/nfp_net.h
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@ -350,9 +350,9 @@ struct nfp_net_rx_buf {
* @qcp_fl: Pointer to base of the QCP freelist queue
* @rxbufs: Array of transmitted FL/RX buffers
* @rxds: Virtual address of FL/RX ring in host memory
* @xdp_rxq: RX-ring info avail for XDP
* @dma: DMA address of the FL/RX ring
* @size: Size, in bytes, of the FL/RX ring (needed to free)
* @xdp_rxq: RX-ring info avail for XDP
*/
struct nfp_net_rx_ring {
struct nfp_net_r_vector *r_vec;
@ -364,14 +364,15 @@ struct nfp_net_rx_ring {
u32 idx;
int fl_qcidx;
unsigned int size;
u8 __iomem *qcp_fl;
struct nfp_net_rx_buf *rxbufs;
struct nfp_net_rx_desc *rxds;
dma_addr_t dma;
struct xdp_rxq_info xdp_rxq;
dma_addr_t dma;
unsigned int size;
} ____cacheline_aligned;
/**