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. Add structure elements for sysctl.

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. Document default values for microcode
This commit is contained in:
jlemon 2001-10-25 05:27:25 +00:00
parent b4f68e0dbf
commit 6d396cbdea
1 changed files with 23 additions and 3 deletions
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26
sys/dev/fxp/if_fxpvar.h
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@ -67,6 +67,23 @@
*/
#define FXP_MAX_RX_IDLE 15
/*
* Default maximum time, in microseconds, that an interrupt may be delayed
* in an attempt to coalesce interrupts. This is only effective if the Intel
* microcode is loaded, and may be changed via either loader tunables or
* sysctl. See also the CPUSAVER_DWORD entry in rcvbundl.h.
*/
#define TUNABLE_INT_DELAY 1000
/*
* Default number of packets that will be bundled, before an interrupt is
* generated. This is only effective if the Intel microcode is loaded, and
* may be changed via either loader tunables or sysctl. This may not be
* present in all microcode revisions, see also the CPUSAVER_BUNDLE_MAX_DWORD
* entry in rcvbundl.h.
*/
#define TUNABLE_BUNDLE_MAX 6
#if __FreeBSD_version < 500000
#define FXP_LOCK(_sc)
#define FXP_UNLOCK(_sc)
@ -111,10 +128,14 @@ struct fxp_softc {
struct ifmedia sc_media; /* media information */
device_t miibus;
device_t dev;
struct sysctl_ctx_list sysctl_ctx;
struct sysctl_oid *sysctl_tree;
int tunable_int_delay; /* interrupt delay value for ucode */
int tunable_bundle_max; /* max # frames per interrupt (ucode) */
int eeprom_size; /* size of serial EEPROM */
int suspended; /* 0 = normal 1 = suspended (APM) */
int cu_resume_bug;
int chip;
int revision;
int flags;
u_int32_t saved_maps[5]; /* pci data */
u_int32_t saved_biosaddr;
@ -123,8 +144,6 @@ struct fxp_softc {
u_int8_t saved_lattimer;
};
#define FXP_CHIP_82557 1 /* 82557 chip type */
#define FXP_FLAG_MWI_ENABLE 0x0001 /* MWI enable */
#define FXP_FLAG_READ_ALIGN 0x0002 /* align read access with cacheline */
#define FXP_FLAG_WRITE_ALIGN 0x0004 /* end write on cacheline */
@ -133,6 +152,7 @@ struct fxp_softc {
#define FXP_FLAG_LONG_PKT_EN 0x0020 /* enable long packet reception */
#define FXP_FLAG_ALL_MCAST 0x0040 /* accept all multicast frames */
#define FXP_FLAG_CU_RESUME_BUG 0x0080 /* requires workaround for CU_RESUME */
#define FXP_FLAG_UCODE 0x0100 /* ucode is loaded */
/* Macros to ease CSR access. */
#define CSR_READ_1(sc, reg) \