09b593c42b
With r333218 it is now possible for drivers to use an sx lock and thus sleep while waiting on long running operations rather than DELAY(). Reported by: gallatin Reviewed by: sbruno Approved by: sbruno MFC after: 1 month Sponsored by: Limelight Networks Differential Revision: https://reviews.freebsd.org/D14984
274 lines
8.9 KiB
C
274 lines
8.9 KiB
C
/******************************************************************************
|
|
SPDX-License-Identifier: BSD-3-Clause
|
|
|
|
Copyright (c) 2001-2015, Intel Corporation
|
|
All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions are met:
|
|
|
|
1. Redistributions of source code must retain the above copyright notice,
|
|
this list of conditions and the following disclaimer.
|
|
|
|
2. Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in the
|
|
documentation and/or other materials provided with the distribution.
|
|
|
|
3. Neither the name of the Intel Corporation nor the names of its
|
|
contributors may be used to endorse or promote products derived from
|
|
this software without specific prior written permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
******************************************************************************/
|
|
/*$FreeBSD$*/
|
|
|
|
|
|
#ifndef _FREEBSD_OS_H_
|
|
#define _FREEBSD_OS_H_
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/lock.h>
|
|
#include <sys/mutex.h>
|
|
#include <sys/mbuf.h>
|
|
#include <sys/protosw.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/bus.h>
|
|
|
|
#include <net/ethernet.h>
|
|
#include <net/if.h>
|
|
#include <net/if_var.h>
|
|
#include <net/iflib.h>
|
|
|
|
|
|
|
|
#include <machine/bus.h>
|
|
#include <sys/rman.h>
|
|
#include <machine/resource.h>
|
|
#include <vm/vm.h>
|
|
#include <vm/pmap.h>
|
|
#include <machine/clock.h>
|
|
#include <dev/pci/pcivar.h>
|
|
#include <dev/pci/pcireg.h>
|
|
|
|
|
|
#define ASSERT(x) if(!(x)) panic("EM: x")
|
|
#define us_scale(x) max(1, (x/(1000000/hz)))
|
|
static inline int
|
|
ms_scale(int x) {
|
|
if (hz == 1000) {
|
|
return (x);
|
|
} else if (hz > 1000) {
|
|
return (x*(hz/1000));
|
|
} else {
|
|
return (max(1, x/(1000/hz)));
|
|
}
|
|
}
|
|
|
|
static inline void
|
|
safe_pause_us(int x) {
|
|
if (cold) {
|
|
DELAY(x);
|
|
} else {
|
|
pause("e1000_delay", max(1, x/(1000000/hz)));
|
|
}
|
|
}
|
|
|
|
static inline void
|
|
safe_pause_ms(int x) {
|
|
if (cold) {
|
|
DELAY(x*1000);
|
|
} else {
|
|
pause("e1000_delay", ms_scale(x));
|
|
}
|
|
}
|
|
|
|
#define usec_delay(x) safe_pause_us(x)
|
|
#define usec_delay_irq(x) usec_delay(x)
|
|
#define msec_delay(x) safe_pause_ms(x)
|
|
#define msec_delay_irq(x) msec_delay(x)
|
|
|
|
/* Enable/disable debugging statements in shared code */
|
|
#define DBG 0
|
|
|
|
#define DEBUGOUT(...) \
|
|
do { if (DBG) printf(__VA_ARGS__); } while (0)
|
|
#define DEBUGOUT1(...) DEBUGOUT(__VA_ARGS__)
|
|
#define DEBUGOUT2(...) DEBUGOUT(__VA_ARGS__)
|
|
#define DEBUGOUT3(...) DEBUGOUT(__VA_ARGS__)
|
|
#define DEBUGOUT7(...) DEBUGOUT(__VA_ARGS__)
|
|
#define DEBUGFUNC(F) DEBUGOUT(F "\n")
|
|
|
|
#define STATIC static
|
|
#define FALSE 0
|
|
#define TRUE 1
|
|
#define CMD_MEM_WRT_INVALIDATE 0x0010 /* BIT_4 */
|
|
#define PCI_COMMAND_REGISTER PCIR_COMMAND
|
|
|
|
typedef uint64_t u64;
|
|
typedef uint32_t u32;
|
|
typedef uint16_t u16;
|
|
typedef uint8_t u8;
|
|
typedef int64_t s64;
|
|
typedef int32_t s32;
|
|
typedef int16_t s16;
|
|
typedef int8_t s8;
|
|
|
|
#define __le16 u16
|
|
#define __le32 u32
|
|
#define __le64 u64
|
|
|
|
#if __FreeBSD_version < 800000
|
|
#if defined(__i386__) || defined(__amd64__)
|
|
#define mb() __asm volatile("mfence" ::: "memory")
|
|
#define wmb() __asm volatile("sfence" ::: "memory")
|
|
#define rmb() __asm volatile("lfence" ::: "memory")
|
|
#else
|
|
#define mb()
|
|
#define rmb()
|
|
#define wmb()
|
|
#endif
|
|
#endif /*__FreeBSD_version < 800000 */
|
|
|
|
#ifdef INVARIANTS
|
|
#define ASSERT_CTX_LOCK_HELD(hw) (sx_assert(iflib_ctx_lock_get(((struct e1000_osdep *)hw->back)->ctx), SX_XLOCKED))
|
|
#else
|
|
#define ASSERT_CTX_LOCK_HELD(hw)
|
|
#endif
|
|
|
|
#if defined(__i386__) || defined(__amd64__)
|
|
static __inline
|
|
void prefetch(void *x)
|
|
{
|
|
__asm volatile("prefetcht0 %0" :: "m" (*(unsigned long *)x));
|
|
}
|
|
#else
|
|
#define prefetch(x)
|
|
#endif
|
|
|
|
struct e1000_osdep
|
|
{
|
|
bus_space_tag_t mem_bus_space_tag;
|
|
bus_space_handle_t mem_bus_space_handle;
|
|
bus_space_tag_t io_bus_space_tag;
|
|
bus_space_handle_t io_bus_space_handle;
|
|
bus_space_tag_t flash_bus_space_tag;
|
|
bus_space_handle_t flash_bus_space_handle;
|
|
device_t dev;
|
|
if_ctx_t ctx;
|
|
};
|
|
|
|
#define E1000_REGISTER(hw, reg) (((hw)->mac.type >= e1000_82543) \
|
|
? reg : e1000_translate_register_82542(reg))
|
|
|
|
#define E1000_WRITE_FLUSH(a) E1000_READ_REG(a, E1000_STATUS)
|
|
|
|
/* Read from an absolute offset in the adapter's memory space */
|
|
#define E1000_READ_OFFSET(hw, offset) \
|
|
bus_space_read_4(((struct e1000_osdep *)(hw)->back)->mem_bus_space_tag, \
|
|
((struct e1000_osdep *)(hw)->back)->mem_bus_space_handle, offset)
|
|
|
|
/* Write to an absolute offset in the adapter's memory space */
|
|
#define E1000_WRITE_OFFSET(hw, offset, value) \
|
|
bus_space_write_4(((struct e1000_osdep *)(hw)->back)->mem_bus_space_tag, \
|
|
((struct e1000_osdep *)(hw)->back)->mem_bus_space_handle, offset, value)
|
|
|
|
/* Register READ/WRITE macros */
|
|
|
|
#define E1000_READ_REG(hw, reg) \
|
|
bus_space_read_4(((struct e1000_osdep *)(hw)->back)->mem_bus_space_tag, \
|
|
((struct e1000_osdep *)(hw)->back)->mem_bus_space_handle, \
|
|
E1000_REGISTER(hw, reg))
|
|
|
|
#define E1000_WRITE_REG(hw, reg, value) \
|
|
bus_space_write_4(((struct e1000_osdep *)(hw)->back)->mem_bus_space_tag, \
|
|
((struct e1000_osdep *)(hw)->back)->mem_bus_space_handle, \
|
|
E1000_REGISTER(hw, reg), value)
|
|
|
|
#define E1000_READ_REG_ARRAY(hw, reg, index) \
|
|
bus_space_read_4(((struct e1000_osdep *)(hw)->back)->mem_bus_space_tag, \
|
|
((struct e1000_osdep *)(hw)->back)->mem_bus_space_handle, \
|
|
E1000_REGISTER(hw, reg) + ((index)<< 2))
|
|
|
|
#define E1000_WRITE_REG_ARRAY(hw, reg, index, value) \
|
|
bus_space_write_4(((struct e1000_osdep *)(hw)->back)->mem_bus_space_tag, \
|
|
((struct e1000_osdep *)(hw)->back)->mem_bus_space_handle, \
|
|
E1000_REGISTER(hw, reg) + ((index)<< 2), value)
|
|
|
|
#define E1000_READ_REG_ARRAY_DWORD E1000_READ_REG_ARRAY
|
|
#define E1000_WRITE_REG_ARRAY_DWORD E1000_WRITE_REG_ARRAY
|
|
|
|
#define E1000_READ_REG_ARRAY_BYTE(hw, reg, index) \
|
|
bus_space_read_1(((struct e1000_osdep *)(hw)->back)->mem_bus_space_tag, \
|
|
((struct e1000_osdep *)(hw)->back)->mem_bus_space_handle, \
|
|
E1000_REGISTER(hw, reg) + index)
|
|
|
|
#define E1000_WRITE_REG_ARRAY_BYTE(hw, reg, index, value) \
|
|
bus_space_write_1(((struct e1000_osdep *)(hw)->back)->mem_bus_space_tag, \
|
|
((struct e1000_osdep *)(hw)->back)->mem_bus_space_handle, \
|
|
E1000_REGISTER(hw, reg) + index, value)
|
|
|
|
#define E1000_WRITE_REG_ARRAY_WORD(hw, reg, index, value) \
|
|
bus_space_write_2(((struct e1000_osdep *)(hw)->back)->mem_bus_space_tag, \
|
|
((struct e1000_osdep *)(hw)->back)->mem_bus_space_handle, \
|
|
E1000_REGISTER(hw, reg) + (index << 1), value)
|
|
|
|
#define E1000_WRITE_REG_IO(hw, reg, value) do {\
|
|
bus_space_write_4(((struct e1000_osdep *)(hw)->back)->io_bus_space_tag, \
|
|
((struct e1000_osdep *)(hw)->back)->io_bus_space_handle, \
|
|
(hw)->io_base, reg); \
|
|
bus_space_write_4(((struct e1000_osdep *)(hw)->back)->io_bus_space_tag, \
|
|
((struct e1000_osdep *)(hw)->back)->io_bus_space_handle, \
|
|
(hw)->io_base + 4, value); } while (0)
|
|
|
|
#define E1000_READ_FLASH_REG(hw, reg) \
|
|
bus_space_read_4(((struct e1000_osdep *)(hw)->back)->flash_bus_space_tag, \
|
|
((struct e1000_osdep *)(hw)->back)->flash_bus_space_handle, reg)
|
|
|
|
#define E1000_READ_FLASH_REG16(hw, reg) \
|
|
bus_space_read_2(((struct e1000_osdep *)(hw)->back)->flash_bus_space_tag, \
|
|
((struct e1000_osdep *)(hw)->back)->flash_bus_space_handle, reg)
|
|
|
|
#define E1000_WRITE_FLASH_REG(hw, reg, value) \
|
|
bus_space_write_4(((struct e1000_osdep *)(hw)->back)->flash_bus_space_tag, \
|
|
((struct e1000_osdep *)(hw)->back)->flash_bus_space_handle, reg, value)
|
|
|
|
#define E1000_WRITE_FLASH_REG16(hw, reg, value) \
|
|
bus_space_write_2(((struct e1000_osdep *)(hw)->back)->flash_bus_space_tag, \
|
|
((struct e1000_osdep *)(hw)->back)->flash_bus_space_handle, reg, value)
|
|
|
|
|
|
#if defined(INVARIANTS)
|
|
#include <sys/proc.h>
|
|
|
|
#define ASSERT_NO_LOCKS() \
|
|
do { \
|
|
int unknown_locks = curthread->td_locks - mtx_owned(&Giant); \
|
|
if (unknown_locks > 0) { \
|
|
WITNESS_WARN(WARN_GIANTOK|WARN_SLEEPOK|WARN_PANIC, NULL, "unexpected non-sleepable lock"); \
|
|
} \
|
|
MPASS(curthread->td_rw_rlocks == 0); \
|
|
MPASS(curthread->td_lk_slocks == 0); \
|
|
} while (0)
|
|
#else
|
|
#define ASSERT_NO_LOCKS()
|
|
#endif
|
|
|
|
#endif /* _FREEBSD_OS_H_ */
|
|
|