mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 05:25:20 +07:00
a5a16e4352
With gcc-4.1.2 on 32-bit:
net/xdp/xsk.c:663: warning: integer constant is too large for ‘long’ type
net/xdp/xsk.c:665: warning: integer constant is too large for ‘long’ type
Add the missing "ULL" suffixes to the large XDP_UMEM_PGOFF_*_RING values
to fix this.
net/xdp/xsk.c:663: warning: comparison is always false due to limited range of data type
net/xdp/xsk.c:665: warning: comparison is always false due to limited range of data type
"unsigned long" is 32-bit on 32-bit systems, hence the offset is
truncated, and can never be equal to any of the XDP_UMEM_PGOFF_*_RING
values. Use loff_t (and the required cast) to fix this.
Fixes: 423f38329d ("xsk: add umem fill queue support and mmap")
Fixes: fe2308328c ("xsk: add umem completion queue support and mmap")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
79 lines
1.8 KiB
C
79 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
|
|
/*
|
|
* if_xdp: XDP socket user-space interface
|
|
* Copyright(c) 2018 Intel Corporation.
|
|
*
|
|
* Author(s): Björn Töpel <bjorn.topel@intel.com>
|
|
* Magnus Karlsson <magnus.karlsson@intel.com>
|
|
*/
|
|
|
|
#ifndef _LINUX_IF_XDP_H
|
|
#define _LINUX_IF_XDP_H
|
|
|
|
#include <linux/types.h>
|
|
|
|
/* Options for the sxdp_flags field */
|
|
#define XDP_SHARED_UMEM (1 << 0)
|
|
#define XDP_COPY (1 << 1) /* Force copy-mode */
|
|
#define XDP_ZEROCOPY (1 << 2) /* Force zero-copy mode */
|
|
|
|
struct sockaddr_xdp {
|
|
__u16 sxdp_family;
|
|
__u16 sxdp_flags;
|
|
__u32 sxdp_ifindex;
|
|
__u32 sxdp_queue_id;
|
|
__u32 sxdp_shared_umem_fd;
|
|
};
|
|
|
|
struct xdp_ring_offset {
|
|
__u64 producer;
|
|
__u64 consumer;
|
|
__u64 desc;
|
|
};
|
|
|
|
struct xdp_mmap_offsets {
|
|
struct xdp_ring_offset rx;
|
|
struct xdp_ring_offset tx;
|
|
struct xdp_ring_offset fr; /* Fill */
|
|
struct xdp_ring_offset cr; /* Completion */
|
|
};
|
|
|
|
/* XDP socket options */
|
|
#define XDP_MMAP_OFFSETS 1
|
|
#define XDP_RX_RING 2
|
|
#define XDP_TX_RING 3
|
|
#define XDP_UMEM_REG 4
|
|
#define XDP_UMEM_FILL_RING 5
|
|
#define XDP_UMEM_COMPLETION_RING 6
|
|
#define XDP_STATISTICS 7
|
|
|
|
struct xdp_umem_reg {
|
|
__u64 addr; /* Start of packet data area */
|
|
__u64 len; /* Length of packet data area */
|
|
__u32 chunk_size;
|
|
__u32 headroom;
|
|
};
|
|
|
|
struct xdp_statistics {
|
|
__u64 rx_dropped; /* Dropped for reasons other than invalid desc */
|
|
__u64 rx_invalid_descs; /* Dropped due to invalid descriptor */
|
|
__u64 tx_invalid_descs; /* Dropped due to invalid descriptor */
|
|
};
|
|
|
|
/* Pgoff for mmaping the rings */
|
|
#define XDP_PGOFF_RX_RING 0
|
|
#define XDP_PGOFF_TX_RING 0x80000000
|
|
#define XDP_UMEM_PGOFF_FILL_RING 0x100000000ULL
|
|
#define XDP_UMEM_PGOFF_COMPLETION_RING 0x180000000ULL
|
|
|
|
/* Rx/Tx descriptor */
|
|
struct xdp_desc {
|
|
__u64 addr;
|
|
__u32 len;
|
|
__u32 options;
|
|
};
|
|
|
|
/* UMEM descriptor is __u64 */
|
|
|
|
#endif /* _LINUX_IF_XDP_H */
|