diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 78bb450e3b6..17600ddc06a 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -60,6 +60,11 @@ config NETDEV_WIRELESS_HANDLER ---help--- Enable the wireless handler support in upper-half driver. +config NETDEV_RSS + bool "Using hardware RSS (Receive Side Scaling) with network card" + default n + depends on SMP && NETDEV_IOCTL && NETDEV_WORK_THREAD + comment "General Ethernet MAC Driver Options" config NET_RPMSG_DRV diff --git a/include/nuttx/net/ioctl.h b/include/nuttx/net/ioctl.h index c7953074635..7be38e6c319 100644 --- a/include/nuttx/net/ioctl.h +++ b/include/nuttx/net/ioctl.h @@ -146,6 +146,10 @@ #define SIOCATMARK _SIOC(0x003E) /* Determine whether socket is at * out-of-band mark */ +/* RSS notify recv cpu calls ************************************************/ + +#define SIOCNOTIFYRECVCPU _SIOC(0x003F) /* RSS notify recv cpu */ + /**************************************************************************** * Public Type Definitions ****************************************************************************/ diff --git a/include/nuttx/net/netdev.h b/include/nuttx/net/netdev.h index e4221a1ee34..2c4c90291d0 100644 --- a/include/nuttx/net/netdev.h +++ b/include/nuttx/net/netdev.h @@ -280,6 +280,14 @@ struct netdev_ifaddr6_s net_ipv6addr_t mask; /* Network IPv6 subnet mask */ }; +#ifdef CONFIG_NETDEV_RSS +struct netdev_rss_s +{ + int cpu; /* CPU ID */ + uint32_t hash; /* Hash value with packet */ +}; +#endif // CONFIG_NETDEV_RSS + /* This structure collects information that is specific to a specific network * interface driver. If the hardware platform supports only a single * instance of this structure. diff --git a/net/netdev/Make.defs b/net/netdev/Make.defs index 4df0e4a3358..08793b0723b 100644 --- a/net/netdev/Make.defs +++ b/net/netdev/Make.defs @@ -42,6 +42,10 @@ ifeq ($(CONFIG_NETDEV_STATISTICS),y) NETDEV_CSRCS += netdev_stats.c endif +ifeq ($(CONFIG_NETDEV_RSS),y) +NETDEV_CSRCS += netdev_notify_recvcpu.c +endif + # Include netdev build support DEPPATH += --dep-path netdev diff --git a/net/netdev/netdev.h b/net/netdev/netdev.h index 08bb7d000b7..18dc1843686 100644 --- a/net/netdev/netdev.h +++ b/net/netdev/netdev.h @@ -524,6 +524,13 @@ void netdev_ipv6_removemcastmac(FAR struct net_driver_s *dev, # define netdev_ipv6_removemcastmac(dev,addr) #endif +#ifdef CONFIG_NETDEV_RSS +void netdev_notify_recvcpu(FAR struct net_driver_s *dev, + int cpu, uint8_t domain, + FAR const void *src_addr, uint16_t src_port, + FAR const void *dst_addr, uint16_t dst_port); +#endif + #undef EXTERN #ifdef __cplusplus } diff --git a/net/netdev/netdev_notify_recvcpu.c b/net/netdev/netdev_notify_recvcpu.c new file mode 100644 index 00000000000..18aac07cd8b --- /dev/null +++ b/net/netdev/netdev_notify_recvcpu.c @@ -0,0 +1,436 @@ +/**************************************************************************** + * net/netdev/netdev_notify_recvcpu.c + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. The + * ASF licenses this file to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance with the + * License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the + * License for the specific language governing permissions and limitations + * under the License. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include +#include + +#include "netdev/netdev.h" + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +#define PACKET_BYTE_SIZE 36 +#define RANDOM_KEY_SIZE 40 + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +typedef enum hashcal_algo_e +{ + HASHCAL_ALGO_TOEPLITZ, + HASHCAL_ALGO_XOR, + HASHCAL_ALGO_CRC32 +} hashcal_algo_e; + +typedef enum hashcal_type_e +{ + HASHCAL_TYPE_4TUPLE, + HASHCAL_TYPE_2TUPLE, +} hashcal_type_e; + +typedef union toeplitz_key_u +{ + uint8_t u8[RANDOM_KEY_SIZE]; + uint32_t u32[10]; +} toeplitz_key_u; + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +static const toeplitz_key_u g_random_key = +{ + .u8 = + { + 0x6d, 0x5a, 0x56, 0xda, 0x25, 0x5b, 0x0e, 0xc2, 0x41, 0x67, + 0x25, 0x3d, 0x43, 0xa3, 0x8f, 0xb0, 0xd0, 0xca, 0x2b, 0xcb, + 0xae, 0x7b, 0x30, 0xb4, 0x77, 0xcb, 0x2d, 0xa3, 0x80, 0x30, + 0xf2, 0x0c, 0x6a, 0x42, 0xb7, 0x3b, 0xbe, 0xac, 0x01, 0xfa, + } +}; + +static const uint32_t g_crc32c_table[256] = +{ + 0x00000000, 0xf26b8303, 0xe13b70f7, 0x1350f3f4, 0xc79a971f, 0x35f1141c, + 0x26a1e7e8, 0xd4ca64eb, 0x8ad958cf, 0x78b2dbcc, 0x6be22838, 0x9989ab3b, + 0x4d43cfd0, 0xbf284cd3, 0xac78bf27, 0x5e133c24, 0x105ec76f, 0xe235446c, + 0xf165b798, 0x030e349b, 0xd7c45070, 0x25afd373, 0x36ff2087, 0xc494a384, + 0x9a879fa0, 0x68ec1ca3, 0x7bbcef57, 0x89d76c54, 0x5d1d08bf, 0xaf768bbc, + 0xbc267848, 0x4e4dfb4b, 0x20bd8ede, 0xd2d60ddd, 0xc186fe29, 0x33ed7d2a, + 0xe72719c1, 0x154c9ac2, 0x061c6936, 0xf477ea35, 0xaa64d611, 0x580f5512, + 0x4b5fa6e6, 0xb93425e5, 0x6dfe410e, 0x9f95c20d, 0x8cc531f9, 0x7eaeb2fa, + 0x30e349b1, 0xc288cab2, 0xd1d83946, 0x23b3ba45, 0xf779deae, 0x05125dad, + 0x1642ae59, 0xe4292d5a, 0xba3a117e, 0x4851927d, 0x5b016189, 0xa96ae28a, + 0x7da08661, 0x8fcb0562, 0x9c9bf696, 0x6ef07595, 0x417b1dbc, 0xb3109ebf, + 0xa0406d4b, 0x522bee48, 0x86e18aa3, 0x748a09a0, 0x67dafa54, 0x95b17957, + 0xcba24573, 0x39c9c670, 0x2a993584, 0xd8f2b687, 0x0c38d26c, 0xfe53516f, + 0xed03a29b, 0x1f682198, 0x5125dad3, 0xa34e59d0, 0xb01eaa24, 0x42752927, + 0x96bf4dcc, 0x64d4cecf, 0x77843d3b, 0x85efbe38, 0xdbfc821c, 0x2997011f, + 0x3ac7f2eb, 0xc8ac71e8, 0x1c661503, 0xee0d9600, 0xfd5d65f4, 0x0f36e6f7, + 0x61c69362, 0x93ad1061, 0x80fde395, 0x72966096, 0xa65c047d, 0x5437877e, + 0x4767748a, 0xb50cf789, 0xeb1fcbad, 0x197448ae, 0x0a24bb5a, 0xf84f3859, + 0x2c855cb2, 0xdeeedfb1, 0xcdb52c45, 0x3fd5af46, 0x7198540d, 0x83f3d70e, + 0x90a324fa, 0x62c8a7f9, 0xb602c312, 0x44694011, 0x5739b3e5, 0xa55230e6, + 0xfb410cc2, 0x092a8fc1, 0x1a7a7c35, 0xe811ff36, 0x3cdb9bdd, 0xceb018de, + 0xdde0eb2a, 0x2f8b6829, 0x82f63b78, 0x709db87b, 0x63cd4b8f, 0x91a6c88c, + 0x456cac67, 0xb7072f64, 0xa457dc90, 0x563c5f93, 0x082f63b7, 0xfa44e0b4, + 0xe9141340, 0x1b7f9043, 0xcfb5f4a8, 0x3dde77ab, 0x2e8e845f, 0xdce5075c, + 0x92a8fc17, 0x60c37f14, 0x73938ce0, 0x81f80fe3, 0x55326b08, 0xa759e80b, + 0xb4091bff, 0x466298fc, 0x1871a4d8, 0xea1a27db, 0xf94ad42f, 0x0b21572c, + 0xdfeb33c7, 0x2d80b0c4, 0x3ed04330, 0xccbbc033, 0xa24bb5a6, 0x502036a5, + 0x4370c551, 0xb11b4652, 0x65d122b9, 0x97baa1ba, 0x84ea524e, 0x7681d14d, + 0x2892ed69, 0xdaf96e6a, 0xc9a99d9e, 0x3bc21e9d, 0xef087a76, 0x1d63f975, + 0x0e330a81, 0xfc588982, 0xb21572c9, 0x407ef1ca, 0x532e023e, 0xa145813d, + 0x758fe5d6, 0x87e466d5, 0x94b49521, 0x66df1622, 0x38cc2a06, 0xcaa7a905, + 0xd9f75af1, 0x2b9cd9f2, 0xff56bd19, 0x0d3d3e1a, 0x1e6dcdee, 0xec064eed, + 0xc38d26c4, 0x31e6a5c7, 0x22b65633, 0xd0ddd530, 0x0417b1db, 0xf67c32d8, + 0xe52cc12c, 0x1747422f, 0x49547e0b, 0xbb3ffd08, 0xa86f0efc, 0x5a048dff, + 0x8ecee914, 0x7ca56a17, 0x6ff599e3, 0x9d9e1ae0, 0xd3d3e1ab, 0x21b862a8, + 0x32e8915c, 0xc083125f, 0x144976b4, 0xe622f5b7, 0xf5720643, 0x07198540, + 0x590ab964, 0xab613a67, 0xb831c993, 0x4a5a4a90, 0x9e902e7b, 0x6cfbad78, + 0x7fab5e8c, 0x8dc0dd8f, 0xe330a81a, 0x115b2b19, 0x020bd8ed, 0xf0605bee, + 0x24aa3f05, 0xd6c1bc06, 0xc5914ff2, 0x37faccf1, 0x69e9f0d5, 0x9b8273d6, + 0x88d28022, 0x7ab90321, 0xae7367ca, 0x5c18e4c9, 0x4f48173d, 0xbd23943e, + 0xf36e6f75, 0x0105ec76, 0x12551f82, 0xe03e9c81, 0x34f4f86a, 0xc69f7b69, + 0xd5cf889d, 0x27a40b9e, 0x79b737ba, 0x8bdcb4b9, 0x988c474d, 0x6ae7c44e, + 0xbe2da0a5, 0x4c4623a6, 0x5f16d052, 0xad7d5351 +}; + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: compute_toeplitz_hash + * + * Description: + * HASHCAL_ALGO_TOEPLITZ is a hash algorithm that uses Toeplitz matrix to + * calculate hash values. Toeplitz matrix is a special matrix where each + * diagonal has the same elements. + * + * Input Parameters: + * packet - The packet data + * len - The packet length in bytes + * + * Returned Value: + * The hash value with toeplitz matrix calculation + * + ****************************************************************************/ + +static uint32_t compute_toeplitz_hash(FAR const uint8_t *packet, + uint32_t len) +{ + uint32_t key = (g_random_key.u8[0] << 24) | (g_random_key.u8[1] << 16) | + (g_random_key.u8[2] << 8) | g_random_key.u8[3]; + uint32_t ret = 0; + int i; + int j; + + for (i = 0; i < len; i++) + { + for (j = 0; j < 8; j++) + { + if (packet[i] & (1 << (7 - j))) + { + ret ^= key; + } + + key <<= 1; + if ((i + 4) < RANDOM_KEY_SIZE && + (g_random_key.u8[i + 4] & (1 << (7 - j)))) + { + key |= 1; + } + } + } + + return ret; +} + +/**************************************************************************** + * Name: compute_xor_hash + * + * Description: + * Calculate hash value using HASHCAL_ALGO_XOR type. + * + * Input Parameters: + * packet - The packet data + * len - The packet length in bytes + * + * Returned Value: + * The hash value with xor calculation + * + ****************************************************************************/ + +static uint32_t compute_xor_hash(FAR const uint8_t *packet, uint32_t len) +{ + uint32_t val = 0; + uint32_t iter = 0; + + len = len >> 2; + + while (iter < len) + { + val ^= packet[iter]; + iter++; + } + + return val; +} + +/**************************************************************************** + * Name: compute_crc32c_hash + * + * Description: + * Calculate hash value using HASHCAL_ALGO_CRC32. crc32c polynomial + * coefficients: x^32 + x^28 + x^27 + x^26 + x^25 + x^23 + x^22 + + * x^20 + x^19 + x^18 + x^14 + x^13 + x^11 + x^10 + x^9 + x^8 + x^6 + 1 + * crc32c verilog code is generated from: + * https://bues.ch/cms/hacking/crcgen.html + * we can verify the result online: + * https://crccalc.com/?crc=24002&method=crc32&datatype=ascii&outtype=dec + * + * Input Parameters: + * packet - The packet data + * len - The packet length in bytes + * + * Returned Value: + * The hash value with crc32c calculation + * + ****************************************************************************/ + +static uint32_t compute_crc32c_hash(FAR uint8_t *packet, uint32_t len) +{ + uint32_t crc32 = 0xffffffff; + uint32_t i = 0; + + for (i = 0; i != len; ++i) + { + uint8_t b = packet[i]; + uint8_t index = (crc32 ^ b) & 0xff; + crc32 = ((crc32 >> 8) & 0xffffff) ^ g_crc32c_table[index]; + } + + return crc32 ^ 0xffffffff; +} + +/**************************************************************************** + * Name: create_binary + * + * Description: + * Create a binary representation of the specified data structure and + * return a length of binary data + * + * Input Parameters: + * hash_type - The hash type + * domain - The layer 3 protocol, PF_INET/PF_INET6 + * packet - The packet data + * src_addr - The source address + * src_port - The source port + * dst_addr - The destination address + * dst_port - The destination port + * + * Returned Value: + * The length of the packet need to be calculated + * + ****************************************************************************/ + +static uint32_t create_binary(hashcal_type_e hash_type, uint8_t domain, + FAR const uint32_t *src_addr, + uint16_t src_port, + FAR const uint32_t *dst_addr, + uint16_t dst_port, + FAR uint8_t *packet) +{ + uint32_t iter = 0; + + if (domain == PF_INET) + { + packet[iter++] = (*src_addr & 0xff000000) >> 24; + packet[iter++] = (*src_addr & 0x00ff0000) >> 16; + packet[iter++] = (*src_addr & 0x0000ff00) >> 8; + packet[iter++] = (*src_addr & 0x000000ff); + + packet[iter++] = (*dst_addr & 0xff000000) >> 24; + packet[iter++] = (*dst_addr & 0x00ff0000) >> 16; + packet[iter++] = (*dst_addr & 0x0000ff00) >> 8; + packet[iter++] = (*dst_addr & 0x000000ff); + + if (hash_type == HASHCAL_TYPE_4TUPLE) + { + packet[iter++] = (src_port & 0xff00) >> 8; + packet[iter++] = (src_port & 0x00ff); + packet[iter++] = (dst_port & 0xff00) >> 8; + packet[iter++] = (dst_port & 0x00ff); + } + } + else + { + uint32_t tmp; + int i; + int j; + + for (i = 0, j = 0; i < 16; i++) + { + if (0 < i && i % 4 == 0) + { + j++; + } + + tmp = src_addr[j]; + packet[i] = tmp >> (24 - (8 * (i % 4))); + } + + for (i = 16, j = 0; i < 32; i++) + { + if (16 < i && i % 4 == 0) + { + j++; + } + + tmp = dst_addr[j]; + packet[i] = tmp >> (24 - (8 * (i % 4))); + } + + iter = 32; + if (hash_type == HASHCAL_TYPE_4TUPLE) + { + packet[iter++] = (src_port & 0xff00) >> 8; + packet[iter++] = (src_port & 0x00ff); + packet[iter++] = (dst_port & 0xff00) >> 8; + packet[iter++] = (dst_port & 0x00ff); + } + } + + return iter; +} + +/**************************************************************************** + * Name: compute_hash + * + * Description: + * Calculate hash value using the specified hash algorithm. + * + * Input Parameters: + * hash_algo - The hash algorithm + * hash_type - The hash type + * domain - The layer 3 protocol, PF_INET/PF_INET6 + * src_addr - The source address + * src_port - The source port + * dst_addr - The destination address + * dst_port - The destination port + * + * Returned Value: + * The hash value + * + ****************************************************************************/ + +static uint32_t compute_hash(hashcal_algo_e hash_algo, + hashcal_type_e hash_type, uint8_t domain, + FAR const uint32_t *src_addr, uint16_t src_port, + FAR const uint32_t *dst_addr, uint16_t dst_port) +{ + uint8_t packet[PACKET_BYTE_SIZE]; + uint32_t hash_val; + uint32_t cal_len; + + memset(packet, 0, PACKET_BYTE_SIZE); + + cal_len = create_binary(hash_type, domain, src_addr, + src_port, dst_addr, dst_port, packet); + DEBUGASSERT(cal_len % 4 == 0); + + switch (hash_algo) + { + case HASHCAL_ALGO_TOEPLITZ: + hash_val = compute_toeplitz_hash(packet, cal_len); + break; + + case HASHCAL_ALGO_XOR: + hash_val = compute_xor_hash(packet, cal_len); + break; + + case HASHCAL_ALGO_CRC32: + hash_val = compute_crc32c_hash(packet, cal_len); + break; + + default: + DEBUGASSERT(0); + } + + return hash_val; +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: netdev_notify_recvcpu + * + * Description: + * Notify the cpu id for the network device driver. + * + * Input Parameters: + * dev - The network device driver state structure + * cpu - The current cpu id + * domain - The layer 3 protocol, PF_INET/PF_INET6 + * src_addr - The source address + * src_port - The source port + * dst_addr - The destination address + * dst_port - The destination port + * + * Returned Value: + * None + * + ****************************************************************************/ + +void netdev_notify_recvcpu(FAR struct net_driver_s *dev, + int cpu, uint8_t domain, + FAR const void *src_addr, uint16_t src_port, + FAR const void *dst_addr, uint16_t dst_port) +{ + if (dev != NULL && dev->d_ioctl != NULL) + { + uint32_t hash = compute_hash(HASHCAL_ALGO_CRC32, + HASHCAL_TYPE_4TUPLE, + domain, + src_addr, src_port, + dst_addr, dst_port); + struct netdev_rss_s arg; + int ret; + + arg.cpu = cpu; + arg.hash = hash; + + ret = dev->d_ioctl(dev, SIOCNOTIFYRECVCPU, + (unsigned long)(uintptr_t)&arg); + if (ret < 0) + { + nerr("ERROR: SIOCNOTIFYRECVCPU failed: %d\n", ret); + } + } +} diff --git a/net/tcp/tcp.h b/net/tcp/tcp.h index 37a01d70320..7dd208ea375 100644 --- a/net/tcp/tcp.h +++ b/net/tcp/tcp.h @@ -282,6 +282,9 @@ struct tcp_conn_s uint16_t flags; /* Flags of TCP-specific options */ #ifdef CONFIG_NET_SOLINGER sclock_t ltimeout; /* Linger timeout expiration */ +#endif +#ifdef CONFIG_NETDEV_RSS + int rcvcpu; /* Currect cpu id */ #endif /* If the TCP socket is bound to a local address, then this is * a reference to the device that routes traffic on the corresponding diff --git a/net/tcp/tcp_recvfrom.c b/net/tcp/tcp_recvfrom.c index 68379418a12..55c4a066d59 100644 --- a/net/tcp/tcp_recvfrom.c +++ b/net/tcp/tcp_recvfrom.c @@ -583,6 +583,51 @@ static ssize_t tcp_recvfrom_result(int result, struct tcp_recvfrom_s *pstate) return (pstate->ir_result < 0) ? pstate->ir_result : result; } +/**************************************************************************** + * Name: tcp_notify_recvcpu + * + * Description: + * This function will check current cpu id with conn->rcvcpu, if + * not same, then use netdev_notify_recvcpu to notify the new cpu id + * + * Input Parameters: + * conn - The TCP connection of interest + * + * Returned Value: + * None + * + * Assumptions: + * conn is not NULL. + * + ****************************************************************************/ + +#ifdef CONFIG_NETDEV_RSS +static void tcp_notify_recvcpu(FAR struct tcp_conn_s *conn) +{ + int cpu = up_cpu_index(); + + if (cpu != conn->rcvcpu) + { + conn->rcvcpu = cpu; + + if (conn->domain == PF_INET) + { + netdev_notify_recvcpu(conn->dev, cpu, conn->domain, + &(conn->u.ipv4.laddr), conn->lport, + &(conn->u.ipv4.raddr), conn->rport); + } + else + { + netdev_notify_recvcpu(conn->dev, cpu, conn->domain, + &(conn->u.ipv6.laddr), conn->lport, + &(conn->u.ipv6.raddr), conn->rport); + } + } +} +#else +# define tcp_notify_recvcpu(c) +#endif /* CONFIG_NETDEV_RSS */ + /**************************************************************************** * Public Functions ****************************************************************************/ @@ -757,6 +802,8 @@ ssize_t psock_tcp_recvfrom(FAR struct socket *psock, FAR struct msghdr *msg, netdev_txnotify_dev(conn->dev); } + tcp_notify_recvcpu(conn); + net_unlock(); tcp_recvfrom_uninitialize(&state); return (ssize_t)ret; diff --git a/net/udp/udp.h b/net/udp/udp.h index 92e63be9f86..f1f18ef00a3 100644 --- a/net/udp/udp.h +++ b/net/udp/udp.h @@ -124,7 +124,9 @@ struct udp_conn_s int32_t sndbufs; /* Maximum amount of bytes queued in send */ sem_t sndsem; /* Semaphore signals send completion */ #endif - +#ifdef CONFIG_NETDEV_RSS + int rcvcpu; /* Last recvfrom cpuid */ +#endif /* Read-ahead buffering. * * readahead - An IOB chain where the UDP/IP read-ahead data is retained. diff --git a/net/udp/udp_recvfrom.c b/net/udp/udp_recvfrom.c index 1d19a535b53..afc77927cf2 100644 --- a/net/udp/udp_recvfrom.c +++ b/net/udp/udp_recvfrom.c @@ -598,6 +598,59 @@ static ssize_t udp_recvfrom_result(int result, struct udp_recvfrom_s *pstate) return pstate->ir_recvlen; } +/**************************************************************************** + * Name: udp_notify_recvcpu + * + * Description: + * This function will check current cpu id with conn->rcvcpu, if + * not same, then use netdev_notify_recvcpu to notify the new cpu id + * + * Input Parameters: + * conn - A reference to UDP connection structure. + * + * Returned Value: + * None + * + * Assumptions: + * conn is not NULL. + * + ****************************************************************************/ + +#ifdef CONFIG_NETDEV_RSS +static void udp_notify_recvcpu(FAR struct udp_conn_s *conn) +{ + int cpu; + + if (!conn) + { + return; + } + + cpu = up_cpu_index(); + if (cpu != conn->rcvcpu) + { + if (conn->domain == PF_INET) + { + netdev_notify_recvcpu(conn->dev, cpu, conn->domain, + &(conn->u.ipv4.laddr), conn->lport, + &(conn->u.ipv4.raddr), conn->rport); + } + else + { + netdev_notify_recvcpu(conn->dev, cpu, conn->domain, + &(conn->u.ipv6.laddr), conn->lport, + &(conn->u.ipv6.raddr), conn->rport); + } + + conn->rcvcpu = cpu; + } + + return; +} +#else +# define udp_notify_recvcpu(c) +#endif /* CONFIG_NETDEV_RSS */ + /**************************************************************************** * Public Functions ****************************************************************************/ @@ -716,6 +769,8 @@ ssize_t psock_udp_recvfrom(FAR struct socket *psock, FAR struct msghdr *msg, } } + udp_notify_recvcpu(conn); + net_unlock(); udp_recvfrom_uninitialize(&state); return ret;