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([153.126.233.61]) by smtp.gmail.com with ESMTPSA id y76-20020a0dd64f000000b0058c668e46cbsm2661460ywd.46.2023.10.07.23.36.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 07 Oct 2023 23:36:08 -0700 (PDT) From: Takeru Hayasaka X-Google-Original-From: Takeru Hayasaka To: Jesse Brandeburg , Tony Nguyen , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Takeru Hayasaka , Takeru Hayasaka Subject: [PATCH net-next] ethtool: ice: Support for RSS settings to GTP from ethtool Date: Sun, 8 Oct 2023 06:36:01 +0000 Message-Id: <20231008063601.61674-1-t-hayasaka@bbsakura.net> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Takeru Hayasaka This is a patch that enables RSS functionality for GTP packets using ethtool. A user can include her TEID and make RSS work for GTP-U over IPv4 by doing the following: `ethtool -N ens3 rx-flow-hash gtpu4 sd` In addition to gtpu(4|6), we now support gtpc(4|6), gtpu(4|6)e, gtpu(4|6)u, and gtpu(4|6)d. Signed-off-by: Takeru Hayasaka --- Hi mentainers. I wrote a patch to enable RSS for GTP-U/C (+Exthdr) using ethtool. This is an advantage for users who use Linux on mobile networks. Here is the ethtool patch cf. https://lore.kernel.org/netdev/20231008063041.61709-1-t-hayasaka@bbsaku= ra.net/T/#u Thank you. drivers/net/ethernet/intel/ice/ice_ethtool.c | 98 +++++++++++++++++++- drivers/net/ethernet/intel/ice/ice_flow.h | 15 +++ drivers/net/ethernet/intel/ice/ice_lib.c | 70 ++++++++++++++ include/uapi/linux/ethtool.h | 10 ++ 4 files changed, 191 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/eth= ernet/intel/ice/ice_ethtool.c index ad4d4702129f..a5ee6638bc60 100644 --- a/drivers/net/ethernet/intel/ice/ice_ethtool.c +++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c @@ -2404,6 +2404,21 @@ static u32 ice_parse_hdrs(struct ethtool_rxnfc *nfc) case SCTP_V4_FLOW: hdrs |=3D ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV4; break; + case GTPU_V4_FLOW: + hdrs |=3D ICE_FLOW_SEG_HDR_GTPU_IP | ICE_FLOW_SEG_HDR_IPV4; + break; + case GTPC_V4_FLOW: + hdrs |=3D ICE_FLOW_SEG_HDR_GTPC_TEID | ICE_FLOW_SEG_HDR_IPV4; + break; + case GTPU_EH_V4_FLOW: + hdrs |=3D ICE_FLOW_SEG_HDR_GTPU_EH | ICE_FLOW_SEG_HDR_IPV4; + break; + case GTPU_UL_V4_FLOW: + hdrs |=3D ICE_FLOW_SEG_HDR_GTPU_UP | ICE_FLOW_SEG_HDR_IPV4; + break; + case GTPU_DL_V4_FLOW: + hdrs |=3D ICE_FLOW_SEG_HDR_GTPU_DWN | ICE_FLOW_SEG_HDR_IPV4; + break; case TCP_V6_FLOW: hdrs |=3D ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV6; break; @@ -2413,9 +2428,25 @@ static u32 ice_parse_hdrs(struct ethtool_rxnfc *nfc) case SCTP_V6_FLOW: hdrs |=3D ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV6; break; + case GTPU_V6_FLOW: + hdrs |=3D ICE_FLOW_SEG_HDR_GTPU_IP | ICE_FLOW_SEG_HDR_IPV6; + break; + case GTPC_V6_FLOW: + hdrs |=3D ICE_FLOW_SEG_HDR_GTPC_TEID | ICE_FLOW_SEG_HDR_IPV6; + break; + case GTPU_EH_V6_FLOW: + hdrs |=3D ICE_FLOW_SEG_HDR_GTPU_EH | ICE_FLOW_SEG_HDR_IPV6; + break; + case GTPU_UL_V6_FLOW: + hdrs |=3D ICE_FLOW_SEG_HDR_GTPU_UP | ICE_FLOW_SEG_HDR_IPV6; + break; + case GTPU_DL_V6_FLOW: + hdrs |=3D ICE_FLOW_SEG_HDR_GTPU_DWN | ICE_FLOW_SEG_HDR_IPV6; + break; default: break; } + return hdrs; } =20 @@ -2431,6 +2462,12 @@ static u32 ice_parse_hdrs(struct ethtool_rxnfc *nfc) BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT) #define ICE_FLOW_HASH_FLD_SCTP_DST_PORT \ BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT) +#define ICE_FLOW_HASH_FLD_GTPC_TEID BIT_ULL(ICE_FLOW_FIELD_IDX_GTPC_TEID) +#define ICE_FLOW_HASH_FLD_GTPU_IP_TEID BIT_ULL(ICE_FLOW_FIELD_IDX_GTPU_IP_= TEID) +#define ICE_FLOW_HASH_FLD_GTPU_EH_TEID BIT_ULL(ICE_FLOW_FIELD_IDX_GTPU_EH_= TEID) +#define ICE_FLOW_HASH_FLD_GTPU_EH_QFI BIT_ULL(ICE_FLOW_FIELD_IDX_GTPU_EH_Q= FI) +#define ICE_FLOW_HASH_FLD_GTPU_UP_TEID BIT_ULL(ICE_FLOW_FIELD_IDX_GTPU_UP_= TEID) +#define ICE_FLOW_HASH_FLD_GTPU_DWN_TEID BIT_ULL(ICE_FLOW_FIELD_IDX_GTPU_DW= N_TEID) =20 /** * ice_parse_hash_flds - parses hash fields from RSS hash input @@ -2448,6 +2485,11 @@ static u64 ice_parse_hash_flds(struct ethtool_rxnfc = *nfc) case TCP_V4_FLOW: case UDP_V4_FLOW: case SCTP_V4_FLOW: + case GTPU_V4_FLOW: + case GTPC_V4_FLOW: + case GTPU_EH_V4_FLOW: + case GTPU_UL_V4_FLOW: + case GTPU_DL_V4_FLOW: if (nfc->data & RXH_IP_SRC) hfld |=3D ICE_FLOW_HASH_FLD_IPV4_SA; if (nfc->data & RXH_IP_DST) @@ -2456,6 +2498,11 @@ static u64 ice_parse_hash_flds(struct ethtool_rxnfc = *nfc) case TCP_V6_FLOW: case UDP_V6_FLOW: case SCTP_V6_FLOW: + case GTPU_V6_FLOW: + case GTPC_V6_FLOW: + case GTPU_EH_V6_FLOW: + case GTPU_UL_V6_FLOW: + case GTPU_DL_V6_FLOW: if (nfc->data & RXH_IP_SRC) hfld |=3D ICE_FLOW_HASH_FLD_IPV6_SA; if (nfc->data & RXH_IP_DST) @@ -2489,11 +2536,50 @@ static u64 ice_parse_hash_flds(struct ethtool_rxnfc= *nfc) if (nfc->data & RXH_L4_B_2_3) hfld |=3D ICE_FLOW_HASH_FLD_SCTP_DST_PORT; break; + case GTPU_V4_FLOW: + case GTPU_V6_FLOW: + case GTPU_EH_V4_FLOW: + case GTPU_EH_V6_FLOW: + case GTPU_UL_V4_FLOW: + case GTPU_UL_V6_FLOW: + case GTPU_DL_V4_FLOW: + case GTPU_DL_V6_FLOW: + if (nfc->data & RXH_L4_B_0_1) + hfld |=3D ICE_FLOW_HASH_FLD_TCP_SRC_PORT | + ICE_FLOW_HASH_FLD_UDP_SRC_PORT; + if (nfc->data & RXH_L4_B_2_3) + hfld |=3D ICE_FLOW_HASH_FLD_TCP_DST_PORT | + ICE_FLOW_HASH_FLD_UDP_DST_PORT; + break; default: break; } } =20 + switch (nfc->flow_type) { + case GTPC_V4_FLOW: + case GTPC_V6_FLOW: + hfld |=3D ICE_FLOW_HASH_FLD_GTPC_TEID; + break; + case GTPU_V4_FLOW: + case GTPU_V6_FLOW: + hfld |=3D ICE_FLOW_HASH_FLD_GTPU_IP_TEID; + break; + case GTPU_EH_V4_FLOW: + case GTPU_EH_V6_FLOW: + hfld |=3D ICE_FLOW_HASH_FLD_GTPU_EH_TEID; + break; + case GTPU_UL_V4_FLOW: + case GTPU_UL_V6_FLOW: + hfld |=3D ICE_FLOW_HASH_FLD_GTPU_UP_TEID; + break; + case GTPU_DL_V4_FLOW: + case GTPU_DL_V6_FLOW: + hfld |=3D ICE_FLOW_HASH_FLD_GTPU_DWN_TEID; + break; + default: + break; + } return hfld; } =20 @@ -2590,12 +2676,20 @@ ice_get_rss_hash_opt(struct ice_vsi *vsi, struct et= htool_rxnfc *nfc) =20 if (hash_flds & ICE_FLOW_HASH_FLD_TCP_SRC_PORT || hash_flds & ICE_FLOW_HASH_FLD_UDP_SRC_PORT || - hash_flds & ICE_FLOW_HASH_FLD_SCTP_SRC_PORT) + hash_flds & ICE_FLOW_HASH_FLD_SCTP_SRC_PORT || + hash_flds & ICE_FLOW_HASH_FLD_GTPU_IP_TEID || + hash_flds & ICE_FLOW_HASH_FLD_GTPU_EH_TEID || + hash_flds & ICE_FLOW_HASH_FLD_GTPU_UP_TEID || + hash_flds & ICE_FLOW_HASH_FLD_GTPU_DWN_TEID) nfc->data |=3D (u64)RXH_L4_B_0_1; =20 if (hash_flds & ICE_FLOW_HASH_FLD_TCP_DST_PORT || hash_flds & ICE_FLOW_HASH_FLD_UDP_DST_PORT || - hash_flds & ICE_FLOW_HASH_FLD_SCTP_DST_PORT) + hash_flds & ICE_FLOW_HASH_FLD_SCTP_DST_PORT || + hash_flds & ICE_FLOW_HASH_FLD_GTPU_IP_TEID || + hash_flds & ICE_FLOW_HASH_FLD_GTPU_EH_TEID || + hash_flds & ICE_FLOW_HASH_FLD_GTPU_UP_TEID || + hash_flds & ICE_FLOW_HASH_FLD_GTPU_DWN_TEID) nfc->data |=3D (u64)RXH_L4_B_2_3; } =20 diff --git a/drivers/net/ethernet/intel/ice/ice_flow.h b/drivers/net/ethern= et/intel/ice/ice_flow.h index b465d27d9b80..7ddf6ce994e7 100644 --- a/drivers/net/ethernet/intel/ice/ice_flow.h +++ b/drivers/net/ethernet/intel/ice/ice_flow.h @@ -64,6 +64,21 @@ (ICE_FLOW_HASH_IPV6 | ICE_FLOW_HASH_GTP_U_EH_TEID | \ ICE_FLOW_HASH_GTP_U_EH_QFI) =20 +#define ICE_FLOW_HASH_GTP_U_UP_TEID \ + (BIT_ULL(ICE_FLOW_FIELD_IDX_GTPU_UP_TEID)) +#define ICE_FLOW_HASH_GTP_U_DWN_TEID \ + (BIT_ULL(ICE_FLOW_FIELD_IDX_GTPU_DWN_TEID)) + +#define ICE_FLOW_HASH_GTP_U_IPV4_UP \ + (ICE_FLOW_HASH_IPV4 | ICE_FLOW_HASH_GTP_U_UP_TEID) +#define ICE_FLOW_HASH_GTP_U_IPV6_UP \ + (ICE_FLOW_HASH_IPV6 | ICE_FLOW_HASH_GTP_U_UP_TEID) + +#define ICE_FLOW_HASH_GTP_U_IPV4_DWN \ + (ICE_FLOW_HASH_IPV4 | ICE_FLOW_HASH_GTP_U_DWN_TEID) +#define ICE_FLOW_HASH_GTP_U_IPV6_DWN \ + (ICE_FLOW_HASH_IPV6 | ICE_FLOW_HASH_GTP_U_DWN_TEID) + #define ICE_FLOW_HASH_PPPOE_SESS_ID \ (BIT_ULL(ICE_FLOW_FIELD_IDX_PPPOE_SESS_ID)) =20 diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/etherne= t/intel/ice/ice_lib.c index 201570cd2e0b..a9664b48eddb 100644 --- a/drivers/net/ethernet/intel/ice/ice_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_lib.c @@ -1667,6 +1667,41 @@ static void ice_vsi_set_rss_flow_fld(struct ice_vsi = *vsi) dev_dbg(dev, "ice_add_rss_cfg failed for sctp4 flow, vsi =3D %d, error = =3D %d\n", vsi_num, status); =20 + /* configure RSS for gtpc4 with input set IPv4 src/dst */ + status =3D ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_GTP_IPV4_TEID, + ICE_FLOW_SEG_HDR_GTPC_TEID | ICE_FLOW_SEG_HDR_IPV4); + if (status) + dev_dbg(dev, "ice_add_rss_cfg failed for gtpc4 flow, vsi =3D %d, error = =3D %d\n", + vsi_num, status); + + /* configure RSS for gtpu4 with input set IPv4 src/dst */ + status =3D ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_GTP_U_IPV4_TEID, + ICE_FLOW_SEG_HDR_GTPU_IP | ICE_FLOW_SEG_HDR_IPV4); + if (status) + dev_dbg(dev, "ice_add_rss_cfg failed for gtpu4 flow, vsi =3D %d, error = =3D %d\n", + vsi_num, status); + + /* configure RSS for gtpu4e with input set IPv4 src/dst */ + status =3D ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_GTP_U_IPV4_EH, + ICE_FLOW_SEG_HDR_GTPU_EH | ICE_FLOW_SEG_HDR_IPV4); + if (status) + dev_dbg(dev, "ice_add_rss_cfg failed for gtpu4e flow, vsi =3D %d, error = =3D %d\n", + vsi_num, status); + + /* configure RSS for gtpu4u with input set IPv4 src/dst */ + status =3D ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_GTP_U_IPV4_UP, + ICE_FLOW_SEG_HDR_GTPU_UP | ICE_FLOW_SEG_HDR_IPV4); + if (status) + dev_dbg(dev, "ice_add_rss_cfg failed for gtpu4u flow, vsi =3D %d, error = =3D %d\n", + vsi_num, status); + + /* configure RSS for gtpu4d with input set IPv4 src/dst */ + status =3D ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_GTP_U_IPV4_DWN, + ICE_FLOW_SEG_HDR_GTPU_DWN | ICE_FLOW_SEG_HDR_IPV4); + if (status) + dev_dbg(dev, "ice_add_rss_cfg failed for gtpu4d flow, vsi =3D %d, error = =3D %d\n", + vsi_num, status); + /* configure RSS for tcp6 with input set IPv6 src/dst, TCP src/dst */ status =3D ice_add_rss_cfg(hw, vsi_handle, ICE_HASH_TCP_IPV6, ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV6); @@ -1688,6 +1723,41 @@ static void ice_vsi_set_rss_flow_fld(struct ice_vsi = *vsi) dev_dbg(dev, "ice_add_rss_cfg failed for sctp6 flow, vsi =3D %d, error = =3D %d\n", vsi_num, status); =20 + /* configure RSS for gtpc6 with input set IPv6 src/dst */ + status =3D ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_GTP_IPV6_TEID, + ICE_FLOW_SEG_HDR_GTPC_TEID | ICE_FLOW_SEG_HDR_IPV6); + if (status) + dev_dbg(dev, "ice_add_rss_cfg failed for gtpc6 flow, vsi =3D %d, error = =3D %d\n", + vsi_num, status); + + /* configure RSS for gtpu6 with input set IPv6 src/dst */ + status =3D ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_GTP_U_IPV6_TEID, + ICE_FLOW_SEG_HDR_GTPU_IP | ICE_FLOW_SEG_HDR_IPV6); + if (status) + dev_dbg(dev, "ice_add_rss_cfg failed for gtpu4 flow, vsi =3D %d, error = =3D %d\n", + vsi_num, status); + + /* configure RSS for gtpu6e with input set IPv6 src/dst */ + status =3D ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_GTP_U_IPV6_EH, + ICE_FLOW_SEG_HDR_GTPU_EH | ICE_FLOW_SEG_HDR_IPV6); + if (status) + dev_dbg(dev, "ice_add_rss_cfg failed for gtpu6e flow, vsi =3D %d, error = =3D %d\n", + vsi_num, status); + + /* configure RSS for gtpu6u with input set IPv6 src/dst */ + status =3D ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_GTP_U_IPV6_UP, + ICE_FLOW_SEG_HDR_GTPU_UP | ICE_FLOW_SEG_HDR_IPV6); + if (status) + dev_dbg(dev, "ice_add_rss_cfg failed for gtpu6u flow, vsi =3D %d, error = =3D %d\n", + vsi_num, status); + + /* configure RSS for gtpu6d with input set IPv6 src/dst */ + status =3D ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_GTP_U_IPV6_DWN, + ICE_FLOW_SEG_HDR_GTPU_DWN | ICE_FLOW_SEG_HDR_IPV6); + if (status) + dev_dbg(dev, "ice_add_rss_cfg failed for gtpu4d flow, vsi =3D %d, error = =3D %d\n", + vsi_num, status); + status =3D ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_ESP_SPI, ICE_FLOW_SEG_HDR_ESP); if (status) diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h index f7fba0dc87e5..f3af2a78f7dd 100644 --- a/include/uapi/linux/ethtool.h +++ b/include/uapi/linux/ethtool.h @@ -2011,6 +2011,16 @@ static inline int ethtool_validate_duplex(__u8 duple= x) #define IPV4_FLOW 0x10 /* hash only */ #define IPV6_FLOW 0x11 /* hash only */ #define ETHER_FLOW 0x12 /* spec only (ether_spec) */ +#define GTPU_V4_FLOW 0x13 /* hash only */ +#define GTPU_V6_FLOW 0x14 /* hash only */ +#define GTPC_V4_FLOW 0x15 /* hash only */ +#define GTPC_V6_FLOW 0x16 /* hash only */ +#define GTPU_EH_V4_FLOW 0x17 /* hash only */ +#define GTPU_EH_V6_FLOW 0x18 /* hash only */ +#define GTPU_UL_V4_FLOW 0x19 /* hash only */ +#define GTPU_UL_V6_FLOW 0x20 /* hash only */ +#define GTPU_DL_V4_FLOW 0x21 /* hash only */ +#define GTPU_DL_V6_FLOW 0x22 /* hash only */ /* Flag to enable additional fields in struct ethtool_rx_flow_spec */ #define FLOW_EXT 0x80000000 #define FLOW_MAC_EXT 0x40000000 --=20 2.34.1