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openwrt/package/kernel/qca-nss-dp/patches/0007-nss-dp-edma-v1-use-NAPI-GRO-by-default.patch

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kernel: qca-nss-dp: update to 12.4.5.r1 Qualcomm has finally started the preparatory work in order to support kernel 6.1, so lets make use of that and update NSS-DP 12.4.5.r1 which allows us to drop almost some of the patches. Signed-off-by: Robert Marko <robimarko@gmail.com>
2023-06-23 12:18:14 +00:00
From c2df713569fe3bb671d1444c7bf758681081053c Mon Sep 17 00:00:00 2001
kernel: add Qualcomm NSS dataplane ethernet driver Qualcomm NSS-DP is as its name says Qualcomms ethernet driver for the NSS subsystem (Networking subsystem) built-into various Qualcomm SoCs. It has 2 modes of operation: * Without NSS FW and rest of code required for offloading This is the one that we will use as the amount of kernel patching required for NSS offloading and the fact that its not upstreamable at all makes it unusable for us. Driver in this mode is rather basic, it currently only offers NAPI GRO (Added by us as part of the fixup) and basically relies on the powerfull CPU to get good throughput. * With NSS FW and rest of code required for offloading In this mode, driver just registers the interfaces and hooks them into NSS-ECM to allow offloading. This mode is not viable for use in OpenWrt due to reasons already described above. This driver is required for ipq807x to have wired networking until a better one is available, so lets add the fixed-up version for 5.15 for now. Signed-off-by: Robert Marko <robimarko@gmail.com>
2022-08-20 10:39:26 +00:00
From: Robert Marko <robimarko@gmail.com>
Date: Thu, 23 Jun 2022 14:18:50 +0200
kernel: qca-nss-dp: update to 12.4.5.r1 Qualcomm has finally started the preparatory work in order to support kernel 6.1, so lets make use of that and update NSS-DP 12.4.5.r1 which allows us to drop almost some of the patches. Signed-off-by: Robert Marko <robimarko@gmail.com>
2023-06-23 12:18:14 +00:00
Subject: [PATCH 7/8] nss-dp: edma-v1: use NAPI GRO by default
kernel: add Qualcomm NSS dataplane ethernet driver Qualcomm NSS-DP is as its name says Qualcomms ethernet driver for the NSS subsystem (Networking subsystem) built-into various Qualcomm SoCs. It has 2 modes of operation: * Without NSS FW and rest of code required for offloading This is the one that we will use as the amount of kernel patching required for NSS offloading and the fact that its not upstreamable at all makes it unusable for us. Driver in this mode is rather basic, it currently only offers NAPI GRO (Added by us as part of the fixup) and basically relies on the powerfull CPU to get good throughput. * With NSS FW and rest of code required for offloading In this mode, driver just registers the interfaces and hooks them into NSS-ECM to allow offloading. This mode is not viable for use in OpenWrt due to reasons already described above. This driver is required for ipq807x to have wired networking until a better one is available, so lets add the fixed-up version for 5.15 for now. Signed-off-by: Robert Marko <robimarko@gmail.com>
2022-08-20 10:39:26 +00:00
Utilize napi_gro_receive instead of plain netif_receive_skb on EDMA v1.
Usually it provides quite a lot of RX speed improvements, however in some
cases it may lead to decreased performance as there is no checksum
offloading implemented.
In cases where reduced performance is experienced its possible to disable
GRO by using ethtool.
Signed-off-by: Robert Marko <robimarko@gmail.com>
---
hal/dp_ops/edma_dp/edma_v1/edma_data_plane.c | 10 ++++++----
hal/dp_ops/edma_dp/edma_v1/edma_tx_rx.c | 8 ++++++--
2 files changed, 12 insertions(+), 6 deletions(-)
--- a/hal/dp_ops/edma_dp/edma_v1/edma_data_plane.c
+++ b/hal/dp_ops/edma_dp/edma_v1/edma_data_plane.c
kernel: qca-nss-dp: update to 12.4.5.r1 Qualcomm has finally started the preparatory work in order to support kernel 6.1, so lets make use of that and update NSS-DP 12.4.5.r1 which allows us to drop almost some of the patches. Signed-off-by: Robert Marko <robimarko@gmail.com>
2023-06-23 12:18:14 +00:00
@@ -597,10 +597,12 @@ drop:
kernel: add Qualcomm NSS dataplane ethernet driver Qualcomm NSS-DP is as its name says Qualcomms ethernet driver for the NSS subsystem (Networking subsystem) built-into various Qualcomm SoCs. It has 2 modes of operation: * Without NSS FW and rest of code required for offloading This is the one that we will use as the amount of kernel patching required for NSS offloading and the fact that its not upstreamable at all makes it unusable for us. Driver in this mode is rather basic, it currently only offers NAPI GRO (Added by us as part of the fixup) and basically relies on the powerfull CPU to get good throughput. * With NSS FW and rest of code required for offloading In this mode, driver just registers the interfaces and hooks them into NSS-ECM to allow offloading. This mode is not viable for use in OpenWrt due to reasons already described above. This driver is required for ipq807x to have wired networking until a better one is available, so lets add the fixed-up version for 5.15 for now. Signed-off-by: Robert Marko <robimarko@gmail.com>
2022-08-20 10:39:26 +00:00
*/
static void edma_if_set_features(struct nss_dp_data_plane_ctx *dpc)
{
- /*
- * TODO - add flags to support HIGHMEM/cksum offload VLAN
- * the features are enabled.
- */
+ struct net_device *netdev = dpc->dev;
+
+ netdev->features |= NETIF_F_GRO;
+ netdev->hw_features |= NETIF_F_GRO;
+ netdev->vlan_features |= NETIF_F_GRO;
+ netdev->wanted_features |= NETIF_F_GRO;
}
/* TODO - check if this is needed */
--- a/hal/dp_ops/edma_dp/edma_v1/edma_tx_rx.c
+++ b/hal/dp_ops/edma_dp/edma_v1/edma_tx_rx.c
kernel: qca-nss-dp: add kernel 6.1 support Add the required changes for kernel 6.1 support. Signed-off-by: Robert Marko <robimarko@gmail.com>
2023-05-23 12:13:25 +00:00
@@ -410,8 +410,12 @@ static uint32_t edma_clean_rx(struct edm
kernel: add Qualcomm NSS dataplane ethernet driver Qualcomm NSS-DP is as its name says Qualcomms ethernet driver for the NSS subsystem (Networking subsystem) built-into various Qualcomm SoCs. It has 2 modes of operation: * Without NSS FW and rest of code required for offloading This is the one that we will use as the amount of kernel patching required for NSS offloading and the fact that its not upstreamable at all makes it unusable for us. Driver in this mode is rather basic, it currently only offers NAPI GRO (Added by us as part of the fixup) and basically relies on the powerfull CPU to get good throughput. * With NSS FW and rest of code required for offloading In this mode, driver just registers the interfaces and hooks them into NSS-ECM to allow offloading. This mode is not viable for use in OpenWrt due to reasons already described above. This driver is required for ipq807x to have wired networking until a better one is available, so lets add the fixed-up version for 5.15 for now. Signed-off-by: Robert Marko <robimarko@gmail.com>
2022-08-20 10:39:26 +00:00
if (unlikely(EDMA_RXPH_SERVICE_CODE_GET(rxph) ==
NSS_PTP_EVENT_SERVICE_CODE))
nss_phy_tstamp_rx_buf(ndev, skb);
- else
- netif_receive_skb(skb);
+ else {
+ if (likely(ndev->features & NETIF_F_GRO))
+ napi_gro_receive(&ehw->napi, skb);
+ else
+ netif_receive_skb(skb);
+ }
next_rx_desc:
/*
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