From b50bcefdcc087e3b945c05ddbe8f0dff399ff405 Mon Sep 17 00:00:00 2001 From: Konstantin Ananyev Date: Fri, 27 Sep 2019 14:50:54 +0100 Subject: [PATCH] examples/bpf: remove duplicate mbuf definition Get rid of duplicate definitions for rte_mbuf and related macros. Include rte_mbuf_core.h instead. Signed-off-by: Konstantin Ananyev Acked-by: Michel Machado --- examples/bpf/mbuf.h | 605 -------------------------------------------- examples/bpf/t2.c | 4 +- examples/bpf/t3.c | 2 +- 3 files changed, 3 insertions(+), 608 deletions(-) delete mode 100644 examples/bpf/mbuf.h diff --git a/examples/bpf/mbuf.h b/examples/bpf/mbuf.h deleted file mode 100644 index e41c3d26e9..0000000000 --- a/examples/bpf/mbuf.h +++ /dev/null @@ -1,605 +0,0 @@ -/* SPDX-License-Identifier: BSD-3-Clause - * Copyright(c) 2010-2014 Intel Corporation. - * Copyright 2014 6WIND S.A. - */ - -/* - * Snipper from dpdk.org rte_mbuf.h. - * used to provide BPF programs information about rte_mbuf layout. - */ - -#ifndef _MBUF_H_ -#define _MBUF_H_ - -#include -#include - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * Packet Offload Features Flags. It also carry packet type information. - * Critical resources. Both rx/tx shared these bits. Be cautious on any change - * - * - RX flags start at bit position zero, and get added to the left of previous - * flags. - * - The most-significant 3 bits are reserved for generic mbuf flags - * - TX flags therefore start at bit position 60 (i.e. 63-3), and new flags get - * added to the right of the previously defined flags i.e. they should count - * downwards, not upwards. - * - * Keep these flags synchronized with rte_get_rx_ol_flag_name() and - * rte_get_tx_ol_flag_name(). - */ - -/** - * RX packet is a 802.1q VLAN packet. This flag was set by PMDs when - * the packet is recognized as a VLAN, but the behavior between PMDs - * was not the same. This flag is kept for some time to avoid breaking - * applications and should be replaced by PKT_RX_VLAN_STRIPPED. - */ -#define PKT_RX_VLAN_PKT (1ULL << 0) - -#define PKT_RX_RSS_HASH (1ULL << 1) -/**< RX packet with RSS hash result. */ -#define PKT_RX_FDIR (1ULL << 2) -/**< RX packet with FDIR match indicate. */ - -/** - * Deprecated. - * Checking this flag alone is deprecated: check the 2 bits of - * PKT_RX_L4_CKSUM_MASK. - * This flag was set when the L4 checksum of a packet was detected as - * wrong by the hardware. - */ -#define PKT_RX_L4_CKSUM_BAD (1ULL << 3) - -/** - * Deprecated. - * Checking this flag alone is deprecated: check the 2 bits of - * PKT_RX_IP_CKSUM_MASK. - * This flag was set when the IP checksum of a packet was detected as - * wrong by the hardware. - */ -#define PKT_RX_IP_CKSUM_BAD (1ULL << 4) - -#define PKT_RX_EIP_CKSUM_BAD (1ULL << 5) -/**< External IP header checksum error. */ - -/** - * A vlan has been stripped by the hardware and its tci is saved in - * mbuf->vlan_tci. This can only happen if vlan stripping is enabled - * in the RX configuration of the PMD. - */ -#define PKT_RX_VLAN_STRIPPED (1ULL << 6) - -/** - * Mask of bits used to determine the status of RX IP checksum. - * - PKT_RX_IP_CKSUM_UNKNOWN: no information about the RX IP checksum - * - PKT_RX_IP_CKSUM_BAD: the IP checksum in the packet is wrong - * - PKT_RX_IP_CKSUM_GOOD: the IP checksum in the packet is valid - * - PKT_RX_IP_CKSUM_NONE: the IP checksum is not correct in the packet - * data, but the integrity of the IP header is verified. - */ -#define PKT_RX_IP_CKSUM_MASK ((1ULL << 4) | (1ULL << 7)) - -#define PKT_RX_IP_CKSUM_UNKNOWN 0 -#define PKT_RX_IP_CKSUM_BAD (1ULL << 4) -#define PKT_RX_IP_CKSUM_GOOD (1ULL << 7) -#define PKT_RX_IP_CKSUM_NONE ((1ULL << 4) | (1ULL << 7)) - -/** - * Mask of bits used to determine the status of RX L4 checksum. - * - PKT_RX_L4_CKSUM_UNKNOWN: no information about the RX L4 checksum - * - PKT_RX_L4_CKSUM_BAD: the L4 checksum in the packet is wrong - * - PKT_RX_L4_CKSUM_GOOD: the L4 checksum in the packet is valid - * - PKT_RX_L4_CKSUM_NONE: the L4 checksum is not correct in the packet - * data, but the integrity of the L4 data is verified. - */ -#define PKT_RX_L4_CKSUM_MASK ((1ULL << 3) | (1ULL << 8)) - -#define PKT_RX_L4_CKSUM_UNKNOWN 0 -#define PKT_RX_L4_CKSUM_BAD (1ULL << 3) -#define PKT_RX_L4_CKSUM_GOOD (1ULL << 8) -#define PKT_RX_L4_CKSUM_NONE ((1ULL << 3) | (1ULL << 8)) - -#define PKT_RX_IEEE1588_PTP (1ULL << 9) -/**< RX IEEE1588 L2 Ethernet PT Packet. */ -#define PKT_RX_IEEE1588_TMST (1ULL << 10) -/**< RX IEEE1588 L2/L4 timestamped packet.*/ -#define PKT_RX_FDIR_ID (1ULL << 13) -/**< FD id reported if FDIR match. */ -#define PKT_RX_FDIR_FLX (1ULL << 14) -/**< Flexible bytes reported if FDIR match. */ - -/** - * The 2 vlans have been stripped by the hardware and their tci are - * saved in mbuf->vlan_tci (inner) and mbuf->vlan_tci_outer (outer). - * This can only happen if vlan stripping is enabled in the RX - * configuration of the PMD. If this flag is set, PKT_RX_VLAN_STRIPPED - * must also be set. - */ -#define PKT_RX_QINQ_STRIPPED (1ULL << 15) - -/** - * Deprecated. - * RX packet with double VLAN stripped. - * This flag is replaced by PKT_RX_QINQ_STRIPPED. - */ -#define PKT_RX_QINQ_PKT PKT_RX_QINQ_STRIPPED - -/** - * When packets are coalesced by a hardware or virtual driver, this flag - * can be set in the RX mbuf, meaning that the m->tso_segsz field is - * valid and is set to the segment size of original packets. - */ -#define PKT_RX_LRO (1ULL << 16) - -/** - * Indicate that the timestamp field in the mbuf is valid. - */ -#define PKT_RX_TIMESTAMP (1ULL << 17) - -/* add new RX flags here */ - -/* add new TX flags here */ - -/** - * Offload the MACsec. This flag must be set by the application to enable - * this offload feature for a packet to be transmitted. - */ -#define PKT_TX_MACSEC (1ULL << 44) - -/** - * Bits 45:48 used for the tunnel type. - * When doing Tx offload like TSO or checksum, the HW needs to configure the - * tunnel type into the HW descriptors. - */ -#define PKT_TX_TUNNEL_VXLAN (0x1ULL << 45) -#define PKT_TX_TUNNEL_GRE (0x2ULL << 45) -#define PKT_TX_TUNNEL_IPIP (0x3ULL << 45) -#define PKT_TX_TUNNEL_GENEVE (0x4ULL << 45) -/**< TX packet with MPLS-in-UDP RFC 7510 header. */ -#define PKT_TX_TUNNEL_MPLSINUDP (0x5ULL << 45) -/* add new TX TUNNEL type here */ -#define PKT_TX_TUNNEL_MASK (0xFULL << 45) - -/** - * Second VLAN insertion (QinQ) flag. - */ -#define PKT_TX_QINQ_PKT (1ULL << 49) -/**< TX packet with double VLAN inserted. */ - -/** - * TCP segmentation offload. To enable this offload feature for a - * packet to be transmitted on hardware supporting TSO: - * - set the PKT_TX_TCP_SEG flag in mbuf->ol_flags (this flag implies - * PKT_TX_TCP_CKSUM) - * - set the flag PKT_TX_IPV4 or PKT_TX_IPV6 - * - if it's IPv4, set the PKT_TX_IP_CKSUM flag and write the IP checksum - * to 0 in the packet - * - fill the mbuf offload information: l2_len, l3_len, l4_len, tso_segsz - * - calculate the pseudo header checksum without taking ip_len in account, - * and set it in the TCP header. Refer to rte_ipv4_phdr_cksum() and - * rte_ipv6_phdr_cksum() that can be used as helpers. - */ -#define PKT_TX_TCP_SEG (1ULL << 50) - -#define PKT_TX_IEEE1588_TMST (1ULL << 51) -/**< TX IEEE1588 packet to timestamp. */ - -/** - * Bits 52+53 used for L4 packet type with checksum enabled: 00: Reserved, - * 01: TCP checksum, 10: SCTP checksum, 11: UDP checksum. To use hardware - * L4 checksum offload, the user needs to: - * - fill l2_len and l3_len in mbuf - * - set the flags PKT_TX_TCP_CKSUM, PKT_TX_SCTP_CKSUM or PKT_TX_UDP_CKSUM - * - set the flag PKT_TX_IPV4 or PKT_TX_IPV6 - * - calculate the pseudo header checksum and set it in the L4 header (only - * for TCP or UDP). See rte_ipv4_phdr_cksum() and rte_ipv6_phdr_cksum(). - * For SCTP, set the crc field to 0. - */ -#define PKT_TX_L4_NO_CKSUM (0ULL << 52) -/**< Disable L4 cksum of TX pkt. */ -#define PKT_TX_TCP_CKSUM (1ULL << 52) -/**< TCP cksum of TX pkt. computed by NIC. */ -#define PKT_TX_SCTP_CKSUM (2ULL << 52) -/**< SCTP cksum of TX pkt. computed by NIC. */ -#define PKT_TX_UDP_CKSUM (3ULL << 52) -/**< UDP cksum of TX pkt. computed by NIC. */ -#define PKT_TX_L4_MASK (3ULL << 52) -/**< Mask for L4 cksum offload request. */ - -/** - * Offload the IP checksum in the hardware. The flag PKT_TX_IPV4 should - * also be set by the application, although a PMD will only check - * PKT_TX_IP_CKSUM. - * - set the IP checksum field in the packet to 0 - * - fill the mbuf offload information: l2_len, l3_len - */ -#define PKT_TX_IP_CKSUM (1ULL << 54) - -/** - * Packet is IPv4. This flag must be set when using any offload feature - * (TSO, L3 or L4 checksum) to tell the NIC that the packet is an IPv4 - * packet. If the packet is a tunneled packet, this flag is related to - * the inner headers. - */ -#define PKT_TX_IPV4 (1ULL << 55) - -/** - * Packet is IPv6. This flag must be set when using an offload feature - * (TSO or L4 checksum) to tell the NIC that the packet is an IPv6 - * packet. If the packet is a tunneled packet, this flag is related to - * the inner headers. - */ -#define PKT_TX_IPV6 (1ULL << 56) - -#define PKT_TX_VLAN_PKT (1ULL << 57) -/**< TX packet is a 802.1q VLAN packet. */ - -/** - * Offload the IP checksum of an external header in the hardware. The - * flag PKT_TX_OUTER_IPV4 should also be set by the application, alto ugh - * a PMD will only check PKT_TX_IP_CKSUM. The IP checksum field in the - * packet must be set to 0. - * - set the outer IP checksum field in the packet to 0 - * - fill the mbuf offload information: outer_l2_len, outer_l3_len - */ -#define PKT_TX_OUTER_IP_CKSUM (1ULL << 58) - -/** - * Packet outer header is IPv4. This flag must be set when using any - * outer offload feature (L3 or L4 checksum) to tell the NIC that the - * outer header of the tunneled packet is an IPv4 packet. - */ -#define PKT_TX_OUTER_IPV4 (1ULL << 59) - -/** - * Packet outer header is IPv6. This flag must be set when using any - * outer offload feature (L4 checksum) to tell the NIC that the outer - * header of the tunneled packet is an IPv6 packet. - */ -#define PKT_TX_OUTER_IPV6 (1ULL << 60) - -/** - * Bitmask of all supported packet Tx offload features flags, - * which can be set for packet. - */ -#define PKT_TX_OFFLOAD_MASK ( \ - PKT_TX_IP_CKSUM | \ - PKT_TX_L4_MASK | \ - PKT_TX_OUTER_IP_CKSUM | \ - PKT_TX_TCP_SEG | \ - PKT_TX_IEEE1588_TMST | \ - PKT_TX_QINQ_PKT | \ - PKT_TX_VLAN_PKT | \ - PKT_TX_TUNNEL_MASK | \ - PKT_TX_MACSEC) - -#define __RESERVED (1ULL << 61) /**< reserved for future mbuf use */ - -#define IND_ATTACHED_MBUF (1ULL << 62) /**< Indirect attached mbuf */ - -/* Use final bit of flags to indicate a control mbuf */ -#define CTRL_MBUF_FLAG (1ULL << 63) /**< Mbuf contains control data */ - -/** Alignment constraint of mbuf private area. */ -#define RTE_MBUF_PRIV_ALIGN 8 - -/** - * Get the name of a RX offload flag - * - * @param mask - * The mask describing the flag. - * @return - * The name of this flag, or NULL if it's not a valid RX flag. - */ -const char *rte_get_rx_ol_flag_name(uint64_t mask); - -/** - * Dump the list of RX offload flags in a buffer - * - * @param mask - * The mask describing the RX flags. - * @param buf - * The output buffer. - * @param buflen - * The length of the buffer. - * @return - * 0 on success, (-1) on error. - */ -int rte_get_rx_ol_flag_list(uint64_t mask, char *buf, size_t buflen); - -/** - * Get the name of a TX offload flag - * - * @param mask - * The mask describing the flag. Usually only one bit must be set. - * Several bits can be given if they belong to the same mask. - * Ex: PKT_TX_L4_MASK. - * @return - * The name of this flag, or NULL if it's not a valid TX flag. - */ -const char *rte_get_tx_ol_flag_name(uint64_t mask); - -/** - * Dump the list of TX offload flags in a buffer - * - * @param mask - * The mask describing the TX flags. - * @param buf - * The output buffer. - * @param buflen - * The length of the buffer. - * @return - * 0 on success, (-1) on error. - */ -int rte_get_tx_ol_flag_list(uint64_t mask, char *buf, size_t buflen); - -/** - * Some NICs need at least 2KB buffer to RX standard Ethernet frame without - * splitting it into multiple segments. - * So, for mbufs that planned to be involved into RX/TX, the recommended - * minimal buffer length is 2KB + RTE_PKTMBUF_HEADROOM. - */ -#define RTE_MBUF_DEFAULT_DATAROOM 2048 -#define RTE_MBUF_DEFAULT_BUF_SIZE \ - (RTE_MBUF_DEFAULT_DATAROOM + RTE_PKTMBUF_HEADROOM) - -/* define a set of marker types that can be used to refer to set points in the - * mbuf. - */ -__extension__ -typedef void *MARKER[0]; /**< generic marker for a point in a structure */ -__extension__ -typedef uint8_t MARKER8[0]; /**< generic marker with 1B alignment */ -__extension__ -typedef uint64_t MARKER64[0]; -/**< marker that allows us to overwrite 8 bytes with a single assignment */ - -typedef struct { - volatile int16_t cnt; /**< An internal counter value. */ -} rte_atomic16_t; - -#define RTE_CACHE_LINE_MIN_SIZE 64 /**< Minimum Cache line size. */ - -/** - * Force minimum cache line alignment. - */ -#define __rte_cache_min_aligned __rte_aligned(RTE_CACHE_LINE_MIN_SIZE) - -/** - * IO virtual address type. - * When the physical addressing mode (IOVA as PA) is in use, - * the translation from an IO virtual address (IOVA) to a physical address - * is a direct mapping, i.e. the same value. - * Otherwise, in virtual mode (IOVA as VA), an IOMMU may do the translation. - */ -typedef uint64_t rte_iova_t; -#define RTE_BAD_IOVA ((rte_iova_t)-1) - -/** - * The generic rte_mbuf, containing a packet mbuf. - */ -struct rte_mbuf { - MARKER cacheline0; - - void *buf_addr; /**< Virtual address of segment buffer. */ - /** - * Physical address of segment buffer. - * Force alignment to 8-bytes, so as to ensure we have the exact - * same mbuf cacheline0 layout for 32-bit and 64-bit. This makes - * working on vector drivers easier. - */ - RTE_STD_C11 - union { - rte_iova_t buf_iova; - rte_iova_t buf_physaddr; /**< deprecated */ - } __rte_aligned(sizeof(rte_iova_t)); - - /* next 8 bytes are initialised on RX descriptor rearm */ - MARKER64 rearm_data; - uint16_t data_off; - - /** - * Reference counter. Its size should at least equal to the size - * of port field (16 bits), to support zero-copy broadcast. - * It should only be accessed using the following functions: - * rte_mbuf_refcnt_update(), rte_mbuf_refcnt_read(), and - * rte_mbuf_refcnt_set(). The functionality of these functions (atomic, - * or non-atomic) is controlled by the CONFIG_RTE_MBUF_REFCNT_ATOMIC - * config option. - */ - RTE_STD_C11 - union { - rte_atomic16_t refcnt_atomic; /**< Atomically accessed refcnt */ - uint16_t refcnt; - /**< Non-atomically accessed refcnt */ - }; - uint16_t nb_segs; /**< Number of segments. */ - - /** Input port (16 bits to support more than 256 virtual ports). */ - uint16_t port; - - uint64_t ol_flags; /**< Offload features. */ - - /* remaining bytes are set on RX when pulling packet from descriptor */ - MARKER rx_descriptor_fields1; - - /* - * The packet type, which is the combination of outer/inner L2, L3, L4 - * and tunnel types. The packet_type is about data really present in the - * mbuf. Example: if vlan stripping is enabled, a received vlan packet - * would have RTE_PTYPE_L2_ETHER and not RTE_PTYPE_L2_VLAN because the - * vlan is stripped from the data. - */ - RTE_STD_C11 - union { - uint32_t packet_type; /**< L2/L3/L4 and tunnel information. */ - struct { - uint32_t l2_type:4; /**< (Outer) L2 type. */ - uint32_t l3_type:4; /**< (Outer) L3 type. */ - uint32_t l4_type:4; /**< (Outer) L4 type. */ - uint32_t tun_type:4; /**< Tunnel type. */ - uint32_t inner_l2_type:4; /**< Inner L2 type. */ - uint32_t inner_l3_type:4; /**< Inner L3 type. */ - uint32_t inner_l4_type:4; /**< Inner L4 type. */ - }; - }; - - uint32_t pkt_len; /**< Total pkt len: sum of all segments. */ - uint16_t data_len; /**< Amount of data in segment buffer. */ - /** VLAN TCI (CPU order), valid if PKT_RX_VLAN_STRIPPED is set. */ - uint16_t vlan_tci; - - union { - uint32_t rss; /**< RSS hash result if RSS enabled */ - struct { - RTE_STD_C11 - union { - struct { - uint16_t hash; - uint16_t id; - }; - uint32_t lo; - /**< Second 4 flexible bytes */ - }; - uint32_t hi; - /**< First 4 flexible bytes or FD ID, dependent on - * PKT_RX_FDIR_* flag in ol_flags. - */ - } fdir; /**< Filter identifier if FDIR enabled */ - struct { - uint32_t lo; - uint32_t hi; - } sched; /**< Hierarchical scheduler */ - uint32_t usr; - /**< User defined tags. See rte_distributor_process() */ - } hash; /**< hash information */ - - /** Outer VLAN TCI (CPU order), valid if PKT_RX_QINQ_STRIPPED is set. */ - uint16_t vlan_tci_outer; - - uint16_t buf_len; /**< Length of segment buffer. */ - - /** Valid if PKT_RX_TIMESTAMP is set. The unit and time reference - * are not normalized but are always the same for a given port. - */ - uint64_t timestamp; - - /* second cache line - fields only used in slow path or on TX */ - MARKER cacheline1 __rte_cache_min_aligned; - - RTE_STD_C11 - union { - void *userdata; /**< Can be used for external metadata */ - uint64_t udata64; /**< Allow 8-byte userdata on 32-bit */ - }; - - struct rte_mempool *pool; /**< Pool from which mbuf was allocated. */ - struct rte_mbuf *next; /**< Next segment of scattered packet. */ - - /* fields to support TX offloads */ - RTE_STD_C11 - union { - uint64_t tx_offload; /**< combined for easy fetch */ - __extension__ - struct { - uint64_t l2_len:7; - /**< L2 (MAC) Header Length for non-tunneling pkt. - * Outer_L4_len + ... + Inner_L2_len for tunneling pkt. - */ - uint64_t l3_len:9; /**< L3 (IP) Header Length. */ - uint64_t l4_len:8; /**< L4 (TCP/UDP) Header Length. */ - uint64_t tso_segsz:16; /**< TCP TSO segment size */ - - /* fields for TX offloading of tunnels */ - uint64_t outer_l3_len:9; - /**< Outer L3 (IP) Hdr Length. */ - uint64_t outer_l2_len:7; - /**< Outer L2 (MAC) Hdr Length. */ - - /* uint64_t unused:8; */ - }; - }; - - /** Size of the application private data. In case of an indirect - * mbuf, it stores the direct mbuf private data size. - */ - uint16_t priv_size; - - /** Timesync flags for use with IEEE1588. */ - uint16_t timesync; - - /** Sequence number. See also rte_reorder_insert(). */ - uint32_t seqn; - -} __rte_cache_aligned; - - -/** - * Returns TRUE if given mbuf is cloned by mbuf indirection, or FALSE - * otherwise. - * - * If a mbuf has its data in another mbuf and references it by mbuf - * indirection, this mbuf can be defined as a cloned mbuf. - */ -#define RTE_MBUF_CLONED(mb) ((mb)->ol_flags & IND_ATTACHED_MBUF) - -/** - * Returns TRUE if given mbuf is direct, or FALSE otherwise. - * - * If a mbuf embeds its own data after the rte_mbuf structure, this mbuf - * can be defined as a direct mbuf. - */ -#define RTE_MBUF_DIRECT(mb) (!RTE_MBUF_CLONED(mb)) - -/** - * Private data in case of pktmbuf pool. - * - * A structure that contains some pktmbuf_pool-specific data that are - * appended after the mempool structure (in private data). - */ -struct rte_pktmbuf_pool_private { - uint16_t mbuf_data_room_size; /**< Size of data space in each mbuf. */ - uint16_t mbuf_priv_size; /**< Size of private area in each mbuf. */ -}; - -/** - * A macro that points to an offset into the data in the mbuf. - * - * The returned pointer is cast to type t. Before using this - * function, the user must ensure that the first segment is large - * enough to accommodate its data. - * - * @param m - * The packet mbuf. - * @param o - * The offset into the mbuf data. - * @param t - * The type to cast the result into. - */ -#define rte_pktmbuf_mtod_offset(m, t, o) \ - ((t)((char *)(m)->buf_addr + (m)->data_off + (o))) - -/** - * A macro that points to the start of the data in the mbuf. - * - * The returned pointer is cast to type t. Before using this - * function, the user must ensure that the first segment is large - * enough to accommodate its data. - * - * @param m - * The packet mbuf. - * @param t - * The type to cast the result into. - */ -#define rte_pktmbuf_mtod(m, t) rte_pktmbuf_mtod_offset(m, t, 0) - -#ifdef __cplusplus -} -#endif - -#endif /* _MBUF_H_ */ diff --git a/examples/bpf/t2.c b/examples/bpf/t2.c index 69d7a4fe15..9878eaf7bd 100644 --- a/examples/bpf/t2.c +++ b/examples/bpf/t2.c @@ -16,7 +16,7 @@ #include #include #include -#include "mbuf.h" +#include uint64_t entry(void *pkt) @@ -25,7 +25,7 @@ entry(void *pkt) mb = pkt; mb->vlan_tci = 0; - mb->ol_flags &= ~(PKT_RX_VLAN_PKT | PKT_RX_VLAN_STRIPPED); + mb->ol_flags &= ~(PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED); return 1; } diff --git a/examples/bpf/t3.c b/examples/bpf/t3.c index 9ba34638a1..f58ff64b3b 100644 --- a/examples/bpf/t3.c +++ b/examples/bpf/t3.c @@ -22,7 +22,7 @@ #include #include #include -#include "mbuf.h" +#include #include extern void rte_pktmbuf_dump(FILE *, const struct rte_mbuf *, unsigned int);