mirror of
https://github.com/freebsd/freebsd-src
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d6b92ffa99
kernel APIs. List of sources used: 1) rdma-core was cloned from "https://github.com/linux-rdma/rdma-core.git" Top commit d65138ef93af30b3ea249f3a84aa6a24ba7f8a75 2) OpenSM was cloned from git://git.openfabrics.org/~halr/opensm.git Top commit 85f841cf209f791c89a075048a907020e924528d 3) libibmad was cloned from "git://git.openfabrics.org/~iraweiny/libibmad.git" Tag 1.3.13 with some additional patches from Mellanox. 4) infiniband-diags was cloned from "git://git.openfabrics.org/~iraweiny/infiniband-diags.git" Tag 1.6.7 with some additional patches from Mellanox. Added the required Makefiles for building and installing. Sponsored by: Mellanox Technologies
117 lines
3.1 KiB
C
117 lines
3.1 KiB
C
/* Licensed under the OpenIB.org BSD license (FreeBSD Variant) - See COPYING.md
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*/
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#ifndef MMIO_H
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#define MMIO_H
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#include <unistd.h>
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#include <sys/syscall.h>
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#ifdef __s390x__
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static inline long mmio_writeb(const unsigned long mmio_addr,
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const uint8_t val)
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{
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return syscall(__NR_s390_pci_mmio_write, mmio_addr, &val, sizeof(val));
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}
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static inline long mmio_writew(const unsigned long mmio_addr,
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const uint16_t val)
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{
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return syscall(__NR_s390_pci_mmio_write, mmio_addr, &val, sizeof(val));
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}
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static inline long mmio_writel(const unsigned long mmio_addr,
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const uint32_t val)
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{
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return syscall(__NR_s390_pci_mmio_write, mmio_addr, &val, sizeof(val));
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}
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static inline long mmio_writeq(const unsigned long mmio_addr,
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const uint64_t val)
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{
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return syscall(__NR_s390_pci_mmio_write, mmio_addr, &val, sizeof(val));
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}
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static inline long mmio_write(const unsigned long mmio_addr,
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const void *val,
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const size_t length)
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{
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return syscall(__NR_s390_pci_mmio_write, mmio_addr, val, length);
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}
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static inline long mmio_readb(const unsigned long mmio_addr, uint8_t *val)
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{
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return syscall(__NR_s390_pci_mmio_read, mmio_addr, val, sizeof(*val));
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}
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static inline long mmio_readw(const unsigned long mmio_addr, uint16_t *val)
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{
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return syscall(__NR_s390_pci_mmio_read, mmio_addr, val, sizeof(*val));
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}
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static inline long mmio_readl(const unsigned long mmio_addr, uint32_t *val)
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{
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return syscall(__NR_s390_pci_mmio_read, mmio_addr, val, sizeof(*val));
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}
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static inline long mmio_readq(const unsigned long mmio_addr, uint64_t *val)
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{
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return syscall(__NR_s390_pci_mmio_read, mmio_addr, val, sizeof(*val));
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}
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static inline long mmio_read(const unsigned long mmio_addr,
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void *val,
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const size_t length)
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{
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return syscall(__NR_s390_pci_mmio_read, mmio_addr, val, length);
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}
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static inline void mlx4_bf_copy(unsigned long *dst,
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unsigned long *src,
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unsigned bytecnt)
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{
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mmio_write((unsigned long)dst, src, bytecnt);
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}
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#else
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#define mmio_writeb(addr, value) \
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(*((volatile uint8_t *)addr) = value)
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#define mmio_writew(addr, value) \
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(*((volatile uint16_t *)addr) = value)
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#define mmio_writel(addr, value) \
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(*((volatile uint32_t *)addr) = value)
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#define mmio_writeq(addr, value) \
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(*((volatile uint64_t *)addr) = value)
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#define mmio_write(addr, value, length) \
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memcpy(addr, value, length)
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#define mmio_readb(addr, value) \
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(value = *((volatile uint8_t *)addr))
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#define mmio_readw(addr, value) \
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(value = *((volatile uint16_t *)addr))
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#define mmio_readl(addr, value) \
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(value = *((volatile uint32_t *)addr))
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#define mmio_readq(addr, value) \
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(value = *((volatile uint64_t *)addr))
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#define mmio_read(addr, value, length) \
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memcpy(value, addr, length)
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/*
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* Avoid using memcpy() to copy to BlueFlame page, since memcpy()
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* implementations may use move-string-buffer assembler instructions,
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* which do not guarantee order of copying.
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*/
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static inline void mlx4_bf_copy(unsigned long *dst,
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unsigned long *src,
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unsigned bytecnt)
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{
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while (bytecnt > 0) {
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*dst++ = *src++;
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*dst++ = *src++;
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bytecnt -= 2 * sizeof(long);
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}
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}
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#endif
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#endif
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