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nfp: move tx_ring->qcidx into cold data

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QCidx is not used on fast path, move it to the lower cacheline.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Fei Qin <fei.qin@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski
2022-03-21 11:42:04 +01:00
committed by David S. Miller
parent d6488c49c2
commit 07cd69c96b
1 changed files with 5 additions and 2 deletions
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7
drivers/net/ethernet/netronome/nfp/nfp_net.h
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@@ -125,7 +125,6 @@ struct nfp_nfd3_tx_buf;
* struct nfp_net_tx_ring - TX ring structure
* @r_vec: Back pointer to ring vector structure
* @idx: Ring index from Linux's perspective
* @qcidx: Queue Controller Peripheral (QCP) queue index for the TX queue
* @qcp_q: Pointer to base of the QCP TX queue
* @cnt: Size of the queue in number of descriptors
* @wr_p: TX ring write pointer (free running)
@@ -135,6 +134,8 @@ struct nfp_nfd3_tx_buf;
* (used for .xmit_more delayed kick)
* @txbufs: Array of transmitted TX buffers, to free on transmit
* @txds: Virtual address of TX ring in host memory
*
* @qcidx: Queue Controller Peripheral (QCP) queue index for the TX queue
* @dma: DMA address of the TX ring
* @size: Size, in bytes, of the TX ring (needed to free)
* @is_xdp: Is this a XDP TX ring?
@@ -143,7 +144,6 @@ struct nfp_net_tx_ring {
struct nfp_net_r_vector *r_vec;
u32 idx;
int qcidx;
u8 __iomem *qcp_q;
u32 cnt;
@@ -156,6 +156,9 @@ struct nfp_net_tx_ring {
struct nfp_nfd3_tx_buf *txbufs;
struct nfp_nfd3_tx_desc *txds;
/* Cold data follows */
int qcidx;
dma_addr_t dma;
size_t size;
bool is_xdp;