diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/701-net-0217-dpaa2-eth-Don-t-use-netif_receive_skb_list-for-TCP-f.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/701-net-0217-dpaa2-eth-Don-t-use-netif_receive_skb_list-for-TCP-f.patch | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0217-dpaa2-eth-Don-t-use-netif_receive_skb_list-for-TCP-f.patch b/target/linux/layerscape/patches-5.4/701-net-0217-dpaa2-eth-Don-t-use-netif_receive_skb_list-for-TCP-f.patch deleted file mode 100644 index 74b4b6d3c0..0000000000 --- a/target/linux/layerscape/patches-5.4/701-net-0217-dpaa2-eth-Don-t-use-netif_receive_skb_list-for-TCP-f.patch +++ /dev/null @@ -1,125 +0,0 @@ -From 01e74b70dd8183aa191cd594ec9fa2879357811f Mon Sep 17 00:00:00 2001 -From: Ioana Radulescu <ruxandra.radulescu@nxp.com> -Date: Mon, 22 Jul 2019 18:52:39 +0300 -Subject: [PATCH] dpaa2-eth: Don't use netif_receive_skb_list for TCP frames - -Using Rx skb bulking for all frames may negatively impact the -performance in some TCP termination scenarios, as it effectively -bypasses GRO. - -Look at the hardware parse results of each ingress frame to see -if a TCP header is present or not; for TCP frames fall back to -the old implementation. - -Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com> -Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> ---- - drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 15 ++++++- - drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h | 51 ++++++++++++++++++++++++ - 2 files changed, 65 insertions(+), 1 deletion(-) - ---- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c -+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c -@@ -353,6 +353,16 @@ out: - return xdp_act; - } - -+static bool frame_is_tcp(const struct dpaa2_fd *fd, struct dpaa2_fas *fas) -+{ -+ struct dpaa2_fapr *fapr = dpaa2_get_fapr(fas, false); -+ -+ if (!(dpaa2_fd_get_frc(fd) & DPAA2_FD_FRC_FAPRV)) -+ return false; -+ -+ return !!(fapr->faf_hi & DPAA2_FAF_HI_TCP_PRESENT); -+} -+ - /* Main Rx frame processing routine */ - static void dpaa2_eth_rx(struct dpaa2_eth_priv *priv, - struct dpaa2_eth_channel *ch, -@@ -440,7 +450,10 @@ static void dpaa2_eth_rx(struct dpaa2_et - percpu_stats->rx_packets++; - percpu_stats->rx_bytes += dpaa2_fd_get_len(fd); - -- list_add_tail(&skb->list, ch->rx_list); -+ if (frame_is_tcp(fd, fas)) -+ napi_gro_receive(&ch->napi, skb); -+ else -+ list_add_tail(&skb->list, ch->rx_list); - - return; - ---- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h -+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h -@@ -178,6 +178,49 @@ struct dpaa2_fas { - */ - #define DPAA2_TS_OFFSET 0x8 - -+/* Frame annotation parse results */ -+struct dpaa2_fapr { -+ /* 64-bit word 1 */ -+ __le32 faf_lo; -+ __le16 faf_ext; -+ __le16 nxt_hdr; -+ /* 64-bit word 2 */ -+ __le64 faf_hi; -+ /* 64-bit word 3 */ -+ u8 last_ethertype_offset; -+ u8 vlan_tci_offset_n; -+ u8 vlan_tci_offset_1; -+ u8 llc_snap_offset; -+ u8 eth_offset; -+ u8 ip1_pid_offset; -+ u8 shim_offset_2; -+ u8 shim_offset_1; -+ /* 64-bit word 4 */ -+ u8 l5_offset; -+ u8 l4_offset; -+ u8 gre_offset; -+ u8 l3_offset_n; -+ u8 l3_offset_1; -+ u8 mpls_offset_n; -+ u8 mpls_offset_1; -+ u8 pppoe_offset; -+ /* 64-bit word 5 */ -+ __le16 running_sum; -+ __le16 gross_running_sum; -+ u8 ipv6_frag_offset; -+ u8 nxt_hdr_offset; -+ u8 routing_hdr_offset_2; -+ u8 routing_hdr_offset_1; -+ /* 64-bit word 6 */ -+ u8 reserved[5]; /* Soft-parsing context */ -+ u8 ip_proto_offset_n; -+ u8 nxt_hdr_frag_offset; -+ u8 parse_error_code; -+}; -+ -+#define DPAA2_FAPR_OFFSET 0x10 -+#define DPAA2_FAPR_SIZE sizeof((struct dpaa2_fapr)) -+ - /* Frame annotation egress action descriptor */ - #define DPAA2_FAEAD_OFFSET 0x58 - -@@ -208,6 +251,11 @@ static inline __le64 *dpaa2_get_ts(void - return dpaa2_get_hwa(buf_addr, swa) + DPAA2_TS_OFFSET; - } - -+static inline struct dpaa2_fapr *dpaa2_get_fapr(void *buf_addr, bool swa) -+{ -+ return dpaa2_get_hwa(buf_addr, swa) + DPAA2_FAPR_OFFSET; -+} -+ - static inline struct dpaa2_faead *dpaa2_get_faead(void *buf_addr, bool swa) - { - return dpaa2_get_hwa(buf_addr, swa) + DPAA2_FAEAD_OFFSET; -@@ -259,6 +307,9 @@ static inline struct dpaa2_faead *dpaa2_ - DPAA2_FAS_L3CE | \ - DPAA2_FAS_L4CE) - -+/* TCP indication in Frame Annotation Parse Results */ -+#define DPAA2_FAF_HI_TCP_PRESENT BIT(23) -+ - /* Time in milliseconds between link state updates */ - #define DPAA2_ETH_LINK_STATE_REFRESH 1000 - |