* [PATCH] net/nfp: fix add redundant read configure operations
@ 2023-06-14 5:51 Chaoyong He
2023-06-20 17:53 ` Ferruh Yigit
0 siblings, 1 reply; 2+ messages in thread
From: Chaoyong He @ 2023-06-14 5:51 UTC (permalink / raw)
To: dev
Cc: oss-drivers, niklas.soderlund, Qin Ke, stable, Chaoyong He, Peng Zhang
From: Qin Ke <qin.ke@corigine.com>
Performance is reduced because of adding redundant read configure
operations in nfp_net_parse_ptype() called by nfp_net_recv_pkts(),
which cause every received packet to spend more time.
Fix the performance issue by deleting the redundant code directly.
Fixes: 2e7c36128be ("net/nfp: report packet type by Rx descriptor")
Cc: stable@dpdk.org
Signed-off-by: Qin Ke <qin.ke@corigine.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@corigine.com>
Reviewed-by: Chaoyong He <chaoyong.he@corigine.com>
Reviewed-by: Peng Zhang <peng.zhang@corigine.com>
---
drivers/net/nfp/nfp_rxtx.c | 17 +++--------------
1 file changed, 3 insertions(+), 14 deletions(-)
diff --git a/drivers/net/nfp/nfp_rxtx.c b/drivers/net/nfp/nfp_rxtx.c
index 9867db4388..297864450b 100644
--- a/drivers/net/nfp/nfp_rxtx.c
+++ b/drivers/net/nfp/nfp_rxtx.c
@@ -317,7 +317,8 @@ nfp_net_parse_meta(struct nfp_net_rx_desc *rxds,
* Mbuf to set the packet type.
*/
static void
-nfp_net_set_ptype(const struct nfp_ptype_parsed *nfp_ptype, struct rte_mbuf *mb)
+nfp_net_set_ptype(const struct nfp_ptype_parsed *nfp_ptype,
+ struct rte_mbuf *mb)
{
uint32_t mbuf_ptype = RTE_PTYPE_L2_ETHER;
uint8_t nfp_tunnel_ptype = nfp_ptype->tunnel_ptype;
@@ -420,31 +421,19 @@ nfp_net_set_ptype(const struct nfp_ptype_parsed *nfp_ptype, struct rte_mbuf *mb)
*
* @param rxds
* Rx descriptor including the offloading info of packet type.
- * @param hw
- * Device.
* @param mb
* Mbuf to set the packet type.
*/
static void
nfp_net_parse_ptype(struct nfp_net_rx_desc *rxds,
- struct nfp_net_hw *hw,
struct rte_mbuf *mb)
{
- uint32_t cap_extend;
- uint32_t ctrl_extend;
struct nfp_ptype_parsed nfp_ptype;
uint16_t rxd_ptype = rxds->rxd.offload_info;
if (rxd_ptype == 0 || (rxds->rxd.flags & PCIE_DESC_RX_VLAN) != 0)
return;
- cap_extend = nn_cfg_readl(hw, NFP_NET_CFG_CAP_WORD1);
- ctrl_extend = nn_cfg_readl(hw, NFP_NET_CFG_CTRL_WORD1);
-
- if ((cap_extend & NFP_NET_CFG_CTRL_PKT_TYPE) == 0 ||
- (ctrl_extend & NFP_NET_CFG_CTRL_PKT_TYPE) == 0)
- return;
-
nfp_ptype.l4_ptype = (rxd_ptype & NFP_NET_PTYPE_L4_MASK) >>
NFP_NET_PTYPE_L4_OFFSET;
nfp_ptype.l3_ptype = (rxd_ptype & NFP_NET_PTYPE_L3_MASK) >>
@@ -593,7 +582,7 @@ nfp_net_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
struct nfp_meta_parsed meta = {};
nfp_net_parse_meta(rxds, rxq, hw, mb, &meta);
- nfp_net_parse_ptype(rxds, hw, mb);
+ nfp_net_parse_ptype(rxds, mb);
/* Checking the checksum flag */
nfp_net_rx_cksum(rxq, rxds, mb);
--
2.39.1
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] net/nfp: fix add redundant read configure operations
2023-06-14 5:51 [PATCH] net/nfp: fix add redundant read configure operations Chaoyong He
@ 2023-06-20 17:53 ` Ferruh Yigit
0 siblings, 0 replies; 2+ messages in thread
From: Ferruh Yigit @ 2023-06-20 17:53 UTC (permalink / raw)
To: Chaoyong He, dev
Cc: oss-drivers, niklas.soderlund, Qin Ke, stable, Peng Zhang
On 6/14/2023 6:51 AM, Chaoyong He wrote:
> From: Qin Ke <qin.ke@corigine.com>
>
> Performance is reduced because of adding redundant read configure
> operations in nfp_net_parse_ptype() called by nfp_net_recv_pkts(),
> which cause every received packet to spend more time.
>
> Fix the performance issue by deleting the redundant code directly.
>
> Fixes: 2e7c36128be ("net/nfp: report packet type by Rx descriptor")
> Cc: stable@dpdk.org
>
> Signed-off-by: Qin Ke <qin.ke@corigine.com>
> Reviewed-by: Niklas Söderlund <niklas.soderlund@corigine.com>
> Reviewed-by: Chaoyong He <chaoyong.he@corigine.com>
> Reviewed-by: Peng Zhang <peng.zhang@corigine.com>
Applied to dpdk-next-net/main, thanks.
<...>
> diff --git a/drivers/net/nfp/nfp_rxtx.c b/drivers/net/nfp/nfp_rxtx.c
> index 9867db4388..297864450b 100644
> --- a/drivers/net/nfp/nfp_rxtx.c
> +++ b/drivers/net/nfp/nfp_rxtx.c
> @@ -317,7 +317,8 @@ nfp_net_parse_meta(struct nfp_net_rx_desc *rxds,
> * Mbuf to set the packet type.
> */
> static void
> -nfp_net_set_ptype(const struct nfp_ptype_parsed *nfp_ptype, struct rte_mbuf *mb)
> +nfp_net_set_ptype(const struct nfp_ptype_parsed *nfp_ptype,
> + struct rte_mbuf *mb)
Above unrelated modification dropped while merging.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2023-06-20 17:53 ` Ferruh Yigit
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