Linux's own r8169 through LDLS, deep idle, and the GPU plan
The RTL8168 is now driven by Linux's r8169, unmodified, in a process. `make ldls-r8169` stages it from the running kernel together with libphy, mdio-bus, mdio_devres and the Realtek PHY driver, the kernel's BTF and the RTL PHY firmware, and etc/schinit/ldls-r8169.job starts it at boot with its log in /var/log/ldls-r8169.log. The native driver is out of the registry; its code, now with Linux's 8168H setup, stays as the fallback. LDLS grows what that needed: - ldlsd loads a comma-separated module set in dependency order, each linking against the ones before it, with BTF read before any init_module runs; - a driver core (bus match, driver probe), devres, kernel printf, real udelay/msleep/ktime and 1000 Hz jiffies, phylib's bitmaps and link_mode_params, firmware from /lib/firmware, and the symbols whose stub zero was a lie (list validity, try_module_get, dev_err_probe, eth_platform_get_mac_address); - pdev->bus is a real pci_bus, and cmovcc from per-CPU memory is rewritten like the other %gs forms. In QEMU all five modules load, link and initialise, and r8169 registers and finds no device. Probe and traffic are untested until real hardware. The kernel turns ASPM off on Realtek NIC links at boot, as r8169 does through pci_disable_link_state, which a process cannot. Idle CPUs enter ACPI _CST's C2 (CC6 on Zen) by port read or MWAIT when the APIC timer keeps running, instead of only ever halting at C1. docs/plan/gpu.md: amdgpu and nouveau through LDLS, with measurements. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01S1giNvrHTrPMPw7V6x1kQ4
This commit is contained in:
Nexoniarz
parent
438e7af141
commit
4ad49ed5f2
18 changed files with 1945 additions and 81 deletions
963
ldls/kpi/base.c
Normal file
963
ldls/kpi/base.c
Normal file
|
|
@ -0,0 +1,963 @@
|
|||
// SPDX-License-Identifier: GPL-2.0-or-later
|
||||
//
|
||||
// The rest of the kernel a modern driver stands on: the driver core, device-
|
||||
// managed resources, printf, time, bitmaps, firmware, and the data symbols.
|
||||
// See ldls/kpi/kpi.h.
|
||||
//
|
||||
// r8169 is the reason for most of it. Unlike 8139too and e1000 it does not
|
||||
// talk to its PHY itself: it registers an MDIO bus with libphy, and libphy
|
||||
// finds the PHY on it and binds a PHY driver (realtek.ko) through Linux's
|
||||
// driver core -- bus_type.match, then device_driver.probe. r8169 then checks
|
||||
// that a dedicated PHY driver was bound and refuses the device if not. So the
|
||||
// driver core here is not decoration; it is what makes the device usable.
|
||||
//
|
||||
// Several functions below exist because a stub's zero is a lie in their
|
||||
// case, and each says which lie it was:
|
||||
// __list_add_valid_or_report 0 = "corrupt list", and with CONFIG_DEBUG_LIST
|
||||
// every list_add asks, so nothing is ever added;
|
||||
// try_module_get 0 = "module going away", phylib refuses the PHY;
|
||||
// dev_err_probe returns its error, or failure looks like success;
|
||||
// eth_platform_get_mac_address 0 = "here is your MAC", all zeroes;
|
||||
// firmware_request_nowarn 0 = "loaded", with a NULL firmware;
|
||||
// __bitmap_* phylib computes link modes with them;
|
||||
// __const_udelay a delay of nothing turns every poll-with-
|
||||
// timeout into an immediate timeout.
|
||||
|
||||
#include "core/types.h"
|
||||
#include "uapi/user.h"
|
||||
#include "uapi/fcntl.h"
|
||||
#include "uapi/posix.h"
|
||||
#include "kpi.h"
|
||||
|
||||
typedef __builtin_va_list va_list;
|
||||
#define va_start(a, l) __builtin_va_start(a, l)
|
||||
#define va_end(a) __builtin_va_end(a)
|
||||
#define va_arg(a, t) __builtin_va_arg(a, t)
|
||||
|
||||
extern void *kpi_kmalloc(unsigned long n, unsigned int flags);
|
||||
extern int kpi_pci_enable_device(void *pdev);
|
||||
extern void *kpi_pci_iomap(void *pdev, int bar, unsigned long max);
|
||||
extern int kpi_pci_read_config_word(void *pdev, int where, unsigned short *v);
|
||||
extern void *kpi_alloc_etherdev_mqs(int priv, unsigned int tx, unsigned int rx);
|
||||
extern void *kpi_dma_alloc_attrs(void *dev, unsigned long size,
|
||||
unsigned long long *handle, unsigned int gfp,
|
||||
unsigned long attrs);
|
||||
extern void *kpi_alloc_pages(unsigned int gfp, unsigned int order);
|
||||
|
||||
static void *zalloc(unsigned long n) { return kpi_kmalloc(n, 0); }
|
||||
|
||||
static unsigned long rdp(const void *base, unsigned int off)
|
||||
{ unsigned long v; __builtin_memcpy(&v, (const char *)base + off, 8); return v; }
|
||||
static void wrp(void *base, unsigned int off, unsigned long v)
|
||||
{ __builtin_memcpy((char *)base + off, &v, 8); }
|
||||
|
||||
static int slen(const char *s) { int n = 0; while (s && s[n]) n++; return n; }
|
||||
|
||||
// --- printf ---------------------------------------------------------------------
|
||||
//
|
||||
// Linux's format language: C's, plus %p followed by letters that say what the
|
||||
// pointer is. Of those, only the MAC address (%pM) is worth expanding here;
|
||||
// the rest print as a pointer and consume their letters, as Linux does, so
|
||||
// that the text after them is not mistaken for part of the format.
|
||||
|
||||
struct out { char *buf; unsigned long cap, n; };
|
||||
|
||||
static void put(struct out *o, char c)
|
||||
{
|
||||
if (o->n + 1 < o->cap)
|
||||
o->buf[o->n] = c;
|
||||
o->n++;
|
||||
}
|
||||
|
||||
static void
|
||||
putnum(struct out *o, unsigned long long v, int base, int neg, int width,
|
||||
int zero, int left, int upper, int prec)
|
||||
{
|
||||
char tmp[24];
|
||||
const char *dig = upper ? "0123456789ABCDEF" : "0123456789abcdef";
|
||||
int n = 0, len, pad;
|
||||
|
||||
if (v == 0 && prec != 0)
|
||||
tmp[n++] = '0';
|
||||
while (v) { tmp[n++] = dig[v % (unsigned)base]; v /= (unsigned)base; }
|
||||
while (n < prec && n < (int)sizeof(tmp)) tmp[n++] = '0';
|
||||
len = n + (neg ? 1 : 0);
|
||||
pad = width > len ? width - len : 0;
|
||||
if (!left && !zero) while (pad-- > 0) put(o, ' ');
|
||||
if (neg) put(o, '-');
|
||||
if (!left && zero) while (pad-- > 0) put(o, '0');
|
||||
while (n > 0) put(o, tmp[--n]);
|
||||
if (left) while (pad-- > 0) put(o, ' ');
|
||||
}
|
||||
|
||||
int
|
||||
kpi_vsnprintf(char *buf, unsigned long cap, const char *f, va_list ap)
|
||||
{
|
||||
struct out o = { buf, cap, 0 };
|
||||
|
||||
if (!f) f = "";
|
||||
while (*f) {
|
||||
if (*f != '%') { put(&o, *f++); continue; }
|
||||
f++;
|
||||
int left = 0, zero = 0, width = 0, prec = -1, lng = 0;
|
||||
for (;; f++) {
|
||||
if (*f == '-') left = 1;
|
||||
else if (*f == '0') zero = 1;
|
||||
else if (*f == '+' || *f == ' ' || *f == '#') ;
|
||||
else break;
|
||||
}
|
||||
if (*f == '*') { width = va_arg(ap, int); f++; }
|
||||
else while (*f >= '0' && *f <= '9') width = width * 10 + (*f++ - '0');
|
||||
if (*f == '.') {
|
||||
f++; prec = 0;
|
||||
if (*f == '*') { prec = va_arg(ap, int); f++; }
|
||||
else while (*f >= '0' && *f <= '9') prec = prec * 10 + (*f++ - '0');
|
||||
}
|
||||
for (;; f++) {
|
||||
if (*f == 'l') lng++;
|
||||
else if (*f == 'z' || *f == 't' || *f == 'j') lng = 2;
|
||||
else if (*f == 'h') ;
|
||||
else break;
|
||||
}
|
||||
char c = *f ? *f++ : 0;
|
||||
switch (c) {
|
||||
case 'd': case 'i': {
|
||||
long long v = lng ? va_arg(ap, long long) : va_arg(ap, int);
|
||||
int neg = v < 0;
|
||||
putnum(&o, neg ? (unsigned long long)-v : (unsigned long long)v, 10,
|
||||
neg, width, zero, left, 0, prec);
|
||||
break;
|
||||
}
|
||||
case 'u': case 'x': case 'X': case 'o': {
|
||||
unsigned long long v = lng ? va_arg(ap, unsigned long long)
|
||||
: va_arg(ap, unsigned int);
|
||||
putnum(&o, v, c == 'u' ? 10 : c == 'o' ? 8 : 16, 0, width, zero, left,
|
||||
c == 'X', prec);
|
||||
break;
|
||||
}
|
||||
case 'c':
|
||||
put(&o, (char)va_arg(ap, int));
|
||||
break;
|
||||
case 's': {
|
||||
const char *s = va_arg(ap, const char *);
|
||||
int n, pad;
|
||||
if (!s) s = "(null)";
|
||||
n = slen(s);
|
||||
if (prec >= 0 && n > prec) n = prec;
|
||||
pad = width > n ? width - n : 0;
|
||||
if (!left) while (pad-- > 0) put(&o, ' ');
|
||||
for (int i = 0; i < n; i++) put(&o, s[i]);
|
||||
if (left) while (pad-- > 0) put(&o, ' ');
|
||||
break;
|
||||
}
|
||||
case 'p': {
|
||||
const unsigned char *p = va_arg(ap, const unsigned char *);
|
||||
if ((*f == 'M' || *f == 'm') && p) {
|
||||
for (int i = 0; i < 6; i++) {
|
||||
if (i && *f == 'M') put(&o, ':');
|
||||
putnum(&o, p[i], 16, 0, 2, 1, 0, 0, -1);
|
||||
}
|
||||
} else if (*f == 'e') {
|
||||
put(&o, 'E');
|
||||
long e = (long)p;
|
||||
putnum(&o, (unsigned long long)(e < 0 ? -e : e), 10, e < 0, 0, 0, 0, 0, -1);
|
||||
} else {
|
||||
put(&o, '0'); put(&o, 'x');
|
||||
putnum(&o, (unsigned long)p, 16, 0, 0, 0, 0, 0, -1);
|
||||
}
|
||||
while ((*f >= 'a' && *f <= 'z') || (*f >= 'A' && *f <= 'Z') ||
|
||||
(*f >= '0' && *f <= '9'))
|
||||
f++;
|
||||
break;
|
||||
}
|
||||
case '%':
|
||||
put(&o, '%');
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (cap)
|
||||
buf[o.n < cap ? o.n : cap - 1] = 0;
|
||||
return (int)o.n;
|
||||
}
|
||||
|
||||
int
|
||||
kpi_snprintf(char *buf, unsigned long cap, const char *f, ...)
|
||||
{
|
||||
va_list ap;
|
||||
va_start(ap, f);
|
||||
int n = kpi_vsnprintf(buf, cap, f, ap);
|
||||
va_end(ap);
|
||||
return n;
|
||||
}
|
||||
|
||||
int
|
||||
kpi_sprintf(char *buf, const char *f, ...)
|
||||
{
|
||||
va_list ap;
|
||||
va_start(ap, f);
|
||||
int n = kpi_vsnprintf(buf, 1UL << 20, f, ap);
|
||||
va_end(ap);
|
||||
return n;
|
||||
}
|
||||
|
||||
char *
|
||||
kpi_kvasprintf(const char *f, va_list ap)
|
||||
{
|
||||
char tmp[512];
|
||||
va_list ap2;
|
||||
__builtin_va_copy(ap2, ap);
|
||||
int n = kpi_vsnprintf(tmp, sizeof(tmp), f, ap2);
|
||||
va_end(ap2);
|
||||
char *s = zalloc((unsigned long)n + 1);
|
||||
if (s)
|
||||
kpi_vsnprintf(s, (unsigned long)n + 1, f, ap);
|
||||
return s;
|
||||
}
|
||||
|
||||
char *
|
||||
kpi_kasprintf(unsigned int gfp, const char *f, ...)
|
||||
{
|
||||
(void)gfp;
|
||||
va_list ap;
|
||||
va_start(ap, f);
|
||||
char *s = kpi_kvasprintf(f, ap);
|
||||
va_end(ap);
|
||||
return s;
|
||||
}
|
||||
|
||||
// A kernel message: the level byte off the front, the driver's text after a
|
||||
// prefix that says whose it is.
|
||||
static void
|
||||
emit(const char *who, const char *f, va_list ap)
|
||||
{
|
||||
char line[512];
|
||||
|
||||
if (f && (unsigned char)f[0] == 0x01 && f[1])
|
||||
f += 2;
|
||||
kpi_vsnprintf(line, sizeof(line), f, ap);
|
||||
kpi_log(" ");
|
||||
if (who && *who) { kpi_log(who); kpi_log(": "); }
|
||||
kpi_log(line);
|
||||
int n = slen(line);
|
||||
if (n == 0 || line[n - 1] != '\n')
|
||||
kpi_log("\n");
|
||||
}
|
||||
|
||||
static const char *
|
||||
dev_name_of(void *dev)
|
||||
{
|
||||
if (!dev || !kpi_l.dev_kobj_ok)
|
||||
return "";
|
||||
const char *n = (const char *)rdp(dev, kpi_l.dev_kobj + kpi_l.kobj_name);
|
||||
return n ? n : "";
|
||||
}
|
||||
|
||||
int kpi_vprintk(const char *f, va_list ap) { emit(0, f, ap); return 0; }
|
||||
|
||||
int
|
||||
kpi_printk_fmt(const char *f, ...)
|
||||
{
|
||||
va_list ap; va_start(ap, f); emit(0, f, ap); va_end(ap); return 0;
|
||||
}
|
||||
|
||||
void
|
||||
kpi_dev_printk(void *dev, const char *f, ...)
|
||||
{
|
||||
va_list ap; va_start(ap, f); emit(dev_name_of(dev), f, ap); va_end(ap);
|
||||
}
|
||||
|
||||
// netdev_* take the net_device, whose name is not kept anywhere this can
|
||||
// read; "ldls0" is what the interface is called on this side anyway.
|
||||
void
|
||||
kpi_netdev_printk_fmt(void *nd, const char *f, ...)
|
||||
{
|
||||
(void)nd;
|
||||
va_list ap; va_start(ap, f); emit("ldls0", f, ap); va_end(ap);
|
||||
}
|
||||
|
||||
void
|
||||
kpi_netdev_printk_lvl(const char *lvl, void *nd, const char *f, ...)
|
||||
{
|
||||
(void)lvl; (void)nd;
|
||||
va_list ap; va_start(ap, f); emit("ldls0", f, ap); va_end(ap);
|
||||
}
|
||||
|
||||
int
|
||||
kpi_dev_err_probe(void *dev, int err, const char *f, ...)
|
||||
{
|
||||
va_list ap; va_start(ap, f); emit(dev_name_of(dev), f, ap); va_end(ap);
|
||||
return err;
|
||||
}
|
||||
|
||||
void
|
||||
kpi_warn_printk(const char *f, ...)
|
||||
{
|
||||
kpi_log(" WARNING ");
|
||||
va_list ap; va_start(ap, f); emit(0, f, ap); va_end(ap);
|
||||
}
|
||||
|
||||
// --- strings ----------------------------------------------------------------------
|
||||
|
||||
int
|
||||
kpi_strcmp(const char *a, const char *b)
|
||||
{
|
||||
while (*a && *a == *b) { a++; b++; }
|
||||
return (unsigned char)*a - (unsigned char)*b;
|
||||
}
|
||||
|
||||
char *
|
||||
kpi_strcpy(char *d, const char *s)
|
||||
{
|
||||
char *r = d;
|
||||
while ((*d++ = *s++)) ;
|
||||
return r;
|
||||
}
|
||||
|
||||
const char *
|
||||
kpi_kstrdup_const(const char *s, unsigned int gfp)
|
||||
{
|
||||
(void)gfp;
|
||||
if (!s) return 0;
|
||||
char *d = zalloc((unsigned long)slen(s) + 1);
|
||||
if (d) kpi_strcpy(d, s);
|
||||
return d;
|
||||
}
|
||||
|
||||
int
|
||||
kpi_kstrtoull(const char *s, unsigned int base, unsigned long long *res)
|
||||
{
|
||||
unsigned long long v = 0;
|
||||
int any = 0;
|
||||
if (base == 0) {
|
||||
base = 10;
|
||||
if (s[0] == '0' && (s[1] == 'x' || s[1] == 'X')) { base = 16; s += 2; }
|
||||
else if (s[0] == '0') base = 8;
|
||||
}
|
||||
for (; *s && *s != '\n'; s++) {
|
||||
int d = (*s >= '0' && *s <= '9') ? *s - '0' :
|
||||
(*s >= 'a' && *s <= 'f') ? *s - 'a' + 10 :
|
||||
(*s >= 'A' && *s <= 'F') ? *s - 'A' + 10 : 99;
|
||||
if (d >= (int)base) return -22;
|
||||
v = v * base + (unsigned)d;
|
||||
any = 1;
|
||||
}
|
||||
if (!any) return -22;
|
||||
*res = v;
|
||||
return 0;
|
||||
}
|
||||
|
||||
// --- time --------------------------------------------------------------------------
|
||||
//
|
||||
// HZ is a compile-time constant in the module. It is 1000 on the kernels this
|
||||
// has been built against, and jiffies has to count at the module's HZ or
|
||||
// every delay it computes in jiffies is wrong by the ratio -- phylib's
|
||||
// one-second link poll became ten seconds at the old 100.
|
||||
|
||||
static unsigned long long
|
||||
now_ns(void)
|
||||
{
|
||||
struct timespec ts;
|
||||
if (clock_gettime(CLOCK_MONOTONIC, &ts) < 0)
|
||||
return (unsigned long long)uptime() * 10000000ULL;
|
||||
return (unsigned long long)ts.tv_sec * 1000000000ULL + (unsigned long long)ts.tv_nsec;
|
||||
}
|
||||
|
||||
unsigned long long kpi_ktime_get(void) { return now_ns(); }
|
||||
|
||||
unsigned long
|
||||
kpi_jiffies_ms(void)
|
||||
{
|
||||
return (unsigned long)(now_ns() / 1000000ULL);
|
||||
}
|
||||
|
||||
static void
|
||||
spin_us(unsigned long us)
|
||||
{
|
||||
unsigned long long end = now_ns() + (unsigned long long)us * 1000ULL;
|
||||
while (now_ns() < end)
|
||||
__builtin_ia32_pause();
|
||||
}
|
||||
|
||||
static void
|
||||
sleep_us(unsigned long us)
|
||||
{
|
||||
// Below a scheduler tick, a sleep would round up to the tick; the waits
|
||||
// that short are MDIO and register polls, where that would be a hundredfold.
|
||||
if (us < 10000) {
|
||||
spin_us(us);
|
||||
return;
|
||||
}
|
||||
struct timespec ts = { (long)(us / 1000000), (long)(us % 1000000) * 1000 };
|
||||
nanosleep(&ts);
|
||||
}
|
||||
|
||||
// udelay(n) arrives as __const_udelay(n * 0x10c7): microseconds scaled by
|
||||
// 2^32 / 10^6.
|
||||
void kpi_const_udelay(unsigned long xloops) { spin_us((unsigned long)(((unsigned long long)xloops * 1000000ULL) >> 32) + 1); }
|
||||
void kpi_udelay(unsigned long us) { spin_us(us); }
|
||||
void kpi_ndelay(unsigned long ns) { spin_us(ns / 1000 + 1); }
|
||||
void kpi_msleep(unsigned int ms) { sleep_us((unsigned long)ms * 1000); }
|
||||
void kpi_usleep_range(unsigned long min, unsigned long max, unsigned int st)
|
||||
{ (void)max; (void)st; sleep_us(min); }
|
||||
|
||||
// --- bitmaps -------------------------------------------------------------------------
|
||||
//
|
||||
// phylib keeps link modes in 121-bit maps, past the size Linux inlines, so
|
||||
// these are called for every "what can both ends do" question it asks.
|
||||
|
||||
#define WORDS(n) (((n) + 63) / 64)
|
||||
|
||||
static unsigned long
|
||||
lastmask(unsigned int nbits)
|
||||
{
|
||||
return (nbits % 64) ? (1UL << (nbits % 64)) - 1 : ~0UL;
|
||||
}
|
||||
|
||||
int
|
||||
kpi_bitmap_and(unsigned long *d, const unsigned long *a, const unsigned long *b,
|
||||
unsigned int nbits)
|
||||
{
|
||||
unsigned long any = 0;
|
||||
unsigned int w = WORDS(nbits);
|
||||
for (unsigned int i = 0; i < w; i++) {
|
||||
d[i] = a[i] & b[i];
|
||||
any |= (i == w - 1) ? (d[i] & lastmask(nbits)) : d[i];
|
||||
}
|
||||
return any != 0;
|
||||
}
|
||||
|
||||
int
|
||||
kpi_bitmap_andnot(unsigned long *d, const unsigned long *a,
|
||||
const unsigned long *b, unsigned int nbits)
|
||||
{
|
||||
unsigned long any = 0;
|
||||
unsigned int w = WORDS(nbits);
|
||||
for (unsigned int i = 0; i < w; i++) {
|
||||
d[i] = a[i] & ~b[i];
|
||||
any |= (i == w - 1) ? (d[i] & lastmask(nbits)) : d[i];
|
||||
}
|
||||
return any != 0;
|
||||
}
|
||||
|
||||
void
|
||||
kpi_bitmap_or(unsigned long *d, const unsigned long *a, const unsigned long *b,
|
||||
unsigned int nbits)
|
||||
{
|
||||
for (unsigned int i = 0; i < WORDS(nbits); i++)
|
||||
d[i] = a[i] | b[i];
|
||||
}
|
||||
|
||||
int
|
||||
kpi_bitmap_equal(const unsigned long *a, const unsigned long *b,
|
||||
unsigned int nbits)
|
||||
{
|
||||
unsigned int w = WORDS(nbits);
|
||||
for (unsigned int i = 0; i < w; i++) {
|
||||
unsigned long m = (i == w - 1) ? lastmask(nbits) : ~0UL;
|
||||
if ((a[i] ^ b[i]) & m) return 0;
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
int
|
||||
kpi_bitmap_intersects(const unsigned long *a, const unsigned long *b,
|
||||
unsigned int nbits)
|
||||
{
|
||||
unsigned int w = WORDS(nbits);
|
||||
for (unsigned int i = 0; i < w; i++) {
|
||||
unsigned long m = (i == w - 1) ? lastmask(nbits) : ~0UL;
|
||||
if (a[i] & b[i] & m) return 1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
unsigned long
|
||||
kpi_find_first_bit(const unsigned long *addr, unsigned long size)
|
||||
{
|
||||
for (unsigned long i = 0; i < size; i++)
|
||||
if (addr[i / 64] & (1UL << (i % 64)))
|
||||
return i;
|
||||
return size;
|
||||
}
|
||||
|
||||
// --- the driver core -----------------------------------------------------------------
|
||||
//
|
||||
// Enough of it to bind a driver to a device on a bus, which is all libphy
|
||||
// asks of it: drivers and devices are remembered, and whenever one arrives it
|
||||
// is offered to the other side -- bus_type.match decides, and the bus's probe
|
||||
// or else the driver's runs with device.driver already set, as Linux does.
|
||||
// Nothing is reference-counted and nothing is ever torn down; see the note on
|
||||
// memory in kpi.c.
|
||||
|
||||
#define NCORE 64
|
||||
static void *core_drv[NCORE];
|
||||
static int core_ndrv;
|
||||
static void *core_dev[NCORE];
|
||||
static int core_ndev;
|
||||
|
||||
static int
|
||||
core_bind(void *dev, void *drv)
|
||||
{
|
||||
void *bus = (void *)rdp(dev, kpi_l.dev_bus);
|
||||
int (*match)(void *, void *) = bus ? (int (*)(void *, void *))rdp(bus, kpi_l.bus_match) : 0;
|
||||
int (*bprobe)(void *) = bus ? (int (*)(void *))rdp(bus, kpi_l.bus_probe) : 0;
|
||||
int (*dprobe)(void *) = (int (*)(void *))rdp(drv, kpi_l.drv_probe);
|
||||
|
||||
if (match && match(dev, drv) <= 0)
|
||||
return 0;
|
||||
wrp(dev, kpi_l.dev_driver, (unsigned long)drv);
|
||||
int r = bprobe ? bprobe(dev) : dprobe ? dprobe(dev) : 0;
|
||||
const char *dn = (const char *)rdp(drv, kpi_l.drv_name);
|
||||
kpi_log(" kpi: bound "); kpi_log(dn ? dn : "a driver");
|
||||
kpi_log(" to "); kpi_log(dev_name_of(dev));
|
||||
if (r != 0) {
|
||||
kpi_log(" -- probe said "); kpi_lognum(r); kpi_log(", unbound\n");
|
||||
wrp(dev, kpi_l.dev_driver, 0);
|
||||
return 0;
|
||||
}
|
||||
kpi_log("\n");
|
||||
return 1;
|
||||
}
|
||||
|
||||
static void
|
||||
core_offer_dev(void *dev)
|
||||
{
|
||||
void *bus;
|
||||
if (!kpi_l.core_ok || rdp(dev, kpi_l.dev_driver))
|
||||
return;
|
||||
bus = (void *)rdp(dev, kpi_l.dev_bus);
|
||||
if (!bus)
|
||||
return;
|
||||
for (int i = 0; i < core_ndrv; i++)
|
||||
if ((void *)rdp(core_drv[i], kpi_l.drv_bus) == bus && core_bind(dev, core_drv[i]))
|
||||
return;
|
||||
}
|
||||
|
||||
int
|
||||
kpi_driver_register(void *drv)
|
||||
{
|
||||
if (core_ndrv < NCORE)
|
||||
core_drv[core_ndrv++] = drv;
|
||||
if (!kpi_l.core_ok)
|
||||
return 0;
|
||||
void *bus = (void *)rdp(drv, kpi_l.drv_bus);
|
||||
for (int i = 0; i < core_ndev; i++)
|
||||
if (!rdp(core_dev[i], kpi_l.dev_driver) &&
|
||||
(void *)rdp(core_dev[i], kpi_l.dev_bus) == bus)
|
||||
core_bind(core_dev[i], drv);
|
||||
return 0;
|
||||
}
|
||||
|
||||
void
|
||||
kpi_driver_unregister(void *drv)
|
||||
{
|
||||
for (int i = 0; i < core_ndrv; i++)
|
||||
if (core_drv[i] == drv) core_drv[i] = core_drv[--core_ndrv];
|
||||
}
|
||||
|
||||
int
|
||||
kpi_device_add(void *dev)
|
||||
{
|
||||
int i;
|
||||
for (i = 0; i < core_ndev; i++)
|
||||
if (core_dev[i] == dev) break;
|
||||
if (i == core_ndev && core_ndev < NCORE)
|
||||
core_dev[core_ndev++] = dev;
|
||||
core_offer_dev(dev);
|
||||
return 0;
|
||||
}
|
||||
|
||||
void
|
||||
kpi_device_del(void *dev)
|
||||
{
|
||||
for (int i = 0; i < core_ndev; i++)
|
||||
if (core_dev[i] == dev) core_dev[i] = core_dev[--core_ndev];
|
||||
}
|
||||
|
||||
void kpi_device_release_driver(void *dev)
|
||||
{ if (kpi_l.core_ok) wrp(dev, kpi_l.dev_driver, 0); }
|
||||
|
||||
void *kpi_get_device(void *dev) { return dev; }
|
||||
|
||||
int
|
||||
kpi_dev_set_name(void *dev, const char *f, ...)
|
||||
{
|
||||
if (!kpi_l.dev_kobj_ok)
|
||||
return 0;
|
||||
va_list ap;
|
||||
va_start(ap, f);
|
||||
char *s = kpi_kvasprintf(f, ap);
|
||||
va_end(ap);
|
||||
if (!s)
|
||||
return -12;
|
||||
wrp(dev, kpi_l.dev_kobj + kpi_l.kobj_name, (unsigned long)s);
|
||||
return 0;
|
||||
}
|
||||
|
||||
const char *
|
||||
kpi_dev_driver_string(void *dev)
|
||||
{
|
||||
if (kpi_l.core_ok && dev) {
|
||||
void *drv = (void *)rdp(dev, kpi_l.dev_driver);
|
||||
if (drv) {
|
||||
const char *n = (const char *)rdp(drv, kpi_l.drv_name);
|
||||
if (n) return n;
|
||||
}
|
||||
}
|
||||
return "";
|
||||
}
|
||||
|
||||
// --- device-managed resources ----------------------------------------------------------
|
||||
//
|
||||
// Freed when the device goes, which here is never. What has to be real is
|
||||
// devres_find: mdio_devres registers a bus only after finding the record
|
||||
// devm_mdiobus_alloc made, and says -EINVAL otherwise.
|
||||
|
||||
#define NRES 128
|
||||
static struct { void *dev, *release, *data; } res[NRES];
|
||||
static int nres;
|
||||
|
||||
void *
|
||||
kpi_devres_alloc(void *release, unsigned long size, unsigned int gfp, int nid,
|
||||
const char *name)
|
||||
{
|
||||
(void)gfp; (void)nid; (void)name;
|
||||
void *d = zalloc(size ? size : 8);
|
||||
if (d && nres < NRES) {
|
||||
res[nres].dev = 0; res[nres].release = release; res[nres].data = d;
|
||||
nres++;
|
||||
}
|
||||
return d;
|
||||
}
|
||||
|
||||
void
|
||||
kpi_devres_add(void *dev, void *data)
|
||||
{
|
||||
for (int i = 0; i < nres; i++)
|
||||
if (res[i].data == data) { res[i].dev = dev; return; }
|
||||
}
|
||||
|
||||
void *
|
||||
kpi_devres_find(void *dev, void *release, int (*match)(void *, void *, void *),
|
||||
void *mdata)
|
||||
{
|
||||
for (int i = 0; i < nres; i++)
|
||||
if (res[i].dev == dev && res[i].release == release &&
|
||||
(!match || match(dev, res[i].data, mdata)))
|
||||
return res[i].data;
|
||||
return 0;
|
||||
}
|
||||
|
||||
void
|
||||
kpi_devres_free(void *data)
|
||||
{
|
||||
for (int i = 0; i < nres; i++)
|
||||
if (res[i].data == data) { res[i] = res[--nres]; return; }
|
||||
}
|
||||
|
||||
void *kpi_devm_kmalloc(void *dev, unsigned long size, unsigned int gfp)
|
||||
{ (void)dev; (void)gfp; return zalloc(size); }
|
||||
|
||||
void *kpi_devm_alloc_etherdev(void *dev, int priv, unsigned int tx, unsigned int rx)
|
||||
{ (void)dev; return kpi_alloc_etherdev_mqs(priv, tx, rx); }
|
||||
|
||||
void *
|
||||
kpi_dmam_alloc_attrs(void *dev, unsigned long size, unsigned long long *h,
|
||||
unsigned int gfp, unsigned long attrs)
|
||||
{ return kpi_dma_alloc_attrs(dev, size, h, gfp, attrs); }
|
||||
|
||||
// --- PCI, the managed and newer calls ----------------------------------------------------
|
||||
|
||||
int kpi_pcim_enable_device(void *pdev) { return kpi_pci_enable_device(pdev); }
|
||||
|
||||
void *
|
||||
kpi_pcim_iomap_region(void *pdev, int bar, const char *name)
|
||||
{
|
||||
(void)name;
|
||||
void *p = kpi_pci_iomap(pdev, bar, 0);
|
||||
return p ? p : (void *)-12L; // ERR_PTR(-ENOMEM); NULL is not an error
|
||||
}
|
||||
|
||||
// One vector, and its number is whatever request_irq is then given back --
|
||||
// the handler is called from the poll loop either way. See kpi_request_irq.
|
||||
int kpi_pci_alloc_irq_vectors(void *pdev, unsigned int min, unsigned int max,
|
||||
unsigned int flags)
|
||||
{ (void)pdev; (void)min; (void)max; (void)flags; return 1; }
|
||||
|
||||
int kpi_pci_irq_vector(void *pdev, unsigned int nr) { (void)pdev; (void)nr; return 16; }
|
||||
|
||||
int
|
||||
kpi_pci_read_config_byte(void *pdev, int where, unsigned char *v)
|
||||
{
|
||||
unsigned short w = 0;
|
||||
int r = kpi_pci_read_config_word(pdev, where & ~1, &w);
|
||||
if (v) *v = (unsigned char)(w >> ((where & 1) * 8));
|
||||
return r;
|
||||
}
|
||||
|
||||
// /dev/pci has no config write (see pci.c). The ones r8169 makes are tuning,
|
||||
// and the ASPM change it wants is made by the kernel at boot instead.
|
||||
int
|
||||
kpi_pci_write_config_byte(void *pdev, int where, unsigned char v)
|
||||
{
|
||||
(void)pdev; (void)v;
|
||||
kpi_log(" kpi: config write to 0x"); kpi_loghex((unsigned)where, 2);
|
||||
kpi_log(" not made\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
void *kpi_alloc_pages_node(unsigned int gfp, unsigned int order, int nid, void *mask)
|
||||
{ (void)nid; (void)mask; return kpi_alloc_pages(gfp, order); }
|
||||
|
||||
// --- work queues, the rest of the API ----------------------------------------------------
|
||||
|
||||
static char kpi_wq_dummy[64];
|
||||
void *kpi_system_wq = kpi_wq_dummy; // the *variable* is the symbol
|
||||
|
||||
void *kpi_alloc_workqueue(const char *f, unsigned int flags, int max, ...)
|
||||
{ (void)f; (void)flags; (void)max; return kpi_wq_dummy; }
|
||||
|
||||
int
|
||||
kpi_mod_delayed_work_on(int cpu, void *q, void *dwork, unsigned long delay)
|
||||
{
|
||||
kpi_queue_delayed_work_on(cpu, q, dwork, delay);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int kpi_disable_work_sync(void *w) { kpi_cancel_work_sync(w); return 0; }
|
||||
|
||||
// --- firmware ------------------------------------------------------------------------------
|
||||
//
|
||||
// From /lib/firmware, which is where Alpine's linux-firmware-* packages put
|
||||
// it. struct firmware's layout comes from BTF like everything else.
|
||||
|
||||
int
|
||||
kpi_request_firmware(void **out, const char *name, void *dev)
|
||||
{
|
||||
char path[256];
|
||||
(void)dev;
|
||||
if (out) *out = 0;
|
||||
if (!kpi_l.fw_ok || !name)
|
||||
return -2;
|
||||
kpi_snprintf(path, sizeof(path), "/lib/firmware/%s", name);
|
||||
int fd = open(path, O_RDONLY);
|
||||
if (fd < 0) {
|
||||
kpi_log(" kpi: no firmware "); kpi_log(path); kpi_log("\n");
|
||||
return -2;
|
||||
}
|
||||
unsigned long cap = 4UL << 20, n = 0;
|
||||
unsigned char *buf = zalloc(cap);
|
||||
if (!buf) { close(fd); return -12; }
|
||||
for (;;) {
|
||||
int r = read(fd, buf + n, (int)(cap - n > 65536 ? 65536 : cap - n));
|
||||
if (r <= 0) break;
|
||||
n += (unsigned long)r;
|
||||
if (n == cap) break;
|
||||
}
|
||||
close(fd);
|
||||
void *fw = zalloc(kpi_l.fw_size_of ? kpi_l.fw_size_of : 64);
|
||||
if (!fw) return -12;
|
||||
wrp(fw, kpi_l.fw_size, n);
|
||||
wrp(fw, kpi_l.fw_data, (unsigned long)buf);
|
||||
if (out) *out = fw;
|
||||
kpi_log(" kpi: firmware "); kpi_log(path); kpi_log(", ");
|
||||
kpi_lognum((long long)n); kpi_log(" bytes\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
// --- small things that must not answer zero ------------------------------------------------
|
||||
|
||||
int kpi_true(void) { return 1; }
|
||||
int kpi_enodev(void) { return -19; }
|
||||
long kpi_ida_alloc(void *ida, unsigned int min, unsigned int max, unsigned int gfp)
|
||||
{
|
||||
static long next;
|
||||
(void)ida; (void)max; (void)gfp;
|
||||
return (long)min + next++;
|
||||
}
|
||||
|
||||
unsigned int
|
||||
kpi_crc32_le(unsigned int crc, const unsigned char *p, unsigned long len)
|
||||
{
|
||||
while (len--) {
|
||||
crc ^= *p++;
|
||||
for (int k = 0; k < 8; k++)
|
||||
crc = (crc >> 1) ^ (0xEDB88320u & (0u - (crc & 1)));
|
||||
}
|
||||
return crc;
|
||||
}
|
||||
|
||||
void
|
||||
kpi_get_random_bytes(void *buf, unsigned long n)
|
||||
{
|
||||
static unsigned long long x = 0x9E3779B97F4A7C15ULL;
|
||||
unsigned char *b = buf;
|
||||
x ^= now_ns();
|
||||
for (unsigned long i = 0; i < n; i++) {
|
||||
x ^= x << 13; x ^= x >> 7; x ^= x << 17;
|
||||
b[i] = (unsigned char)x;
|
||||
}
|
||||
}
|
||||
|
||||
// __skb_pad(skb, pad, free_on_error): zero the bytes after the data, so a
|
||||
// runt frame goes out padded with zeroes rather than with whatever was there.
|
||||
int
|
||||
kpi_skb_pad(void *skb, int pad, int free_on_error)
|
||||
{
|
||||
(void)free_on_error;
|
||||
unsigned char *head = (unsigned char *)rdp(skb, kpi_l.skb_head);
|
||||
unsigned int tail, end;
|
||||
__builtin_memcpy(&tail, (char *)skb + kpi_l.skb_tail, 4);
|
||||
__builtin_memcpy(&end, (char *)skb + kpi_l.skb_end, 4);
|
||||
if (pad < 0 || tail + (unsigned)pad > end)
|
||||
return -12;
|
||||
for (int i = 0; i < pad; i++) head[tail + i] = 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
// --- data -------------------------------------------------------------------------------------
|
||||
//
|
||||
// Undefined data symbols. A stub would resolve them to machine code, which
|
||||
// reads as nonsense and, written to, overwrites a trampoline.
|
||||
|
||||
// net/ethtool/common.c's link_mode_params: speed, lanes, duplex per link mode
|
||||
// bit, which phylib reads at init to build its capability table. A fact table,
|
||||
// generated from Linux 6.18; struct link_mode_info is int, u8, u8 (8 bytes).
|
||||
static const struct { int speed; unsigned char lanes, duplex; } kpi_link_mode_params[] = {
|
||||
#include "link_modes.inc"
|
||||
};
|
||||
|
||||
static unsigned char kpi_zero_data[16][4096] __attribute__((aligned(64)));
|
||||
static unsigned long kpi_cpu_online_mask[16] = { 1 }; // CPU 0
|
||||
static int kpi_system_state = 3; // SYSTEM_RUNNING
|
||||
// A list_head: empty means pointing at itself, not zero.
|
||||
static void *kpi_leds_list[2] = { kpi_leds_list, kpi_leds_list };
|
||||
|
||||
// --- the table ------------------------------------------------------------------------------------
|
||||
|
||||
extern int kpi_queue_delayed_work_on(int cpu, void *q, void *dwork, unsigned long delay);
|
||||
extern int kpi_cancel_work_sync(void *work);
|
||||
|
||||
const struct kpi_sym kpi_base_table[] = {
|
||||
// printing, formatted
|
||||
{ "_printk", (void *)kpi_printk_fmt },
|
||||
{ "vprintk", (void *)kpi_vprintk },
|
||||
{ "_dev_info", (void *)kpi_dev_printk },
|
||||
{ "_dev_err", (void *)kpi_dev_printk },
|
||||
{ "_dev_warn", (void *)kpi_dev_printk },
|
||||
{ "_dev_notice", (void *)kpi_dev_printk },
|
||||
{ "netdev_info", (void *)kpi_netdev_printk_fmt },
|
||||
{ "netdev_err", (void *)kpi_netdev_printk_fmt },
|
||||
{ "netdev_warn", (void *)kpi_netdev_printk_fmt },
|
||||
{ "netdev_alert", (void *)kpi_netdev_printk_fmt },
|
||||
{ "netdev_printk", (void *)kpi_netdev_printk_lvl },
|
||||
{ "dev_err_probe", (void *)kpi_dev_err_probe },
|
||||
{ "__warn_printk", (void *)kpi_warn_printk },
|
||||
{ "snprintf", (void *)kpi_snprintf },
|
||||
{ "sprintf", (void *)kpi_sprintf },
|
||||
{ "kasprintf", (void *)kpi_kasprintf },
|
||||
|
||||
// strings
|
||||
{ "strcmp", (void *)kpi_strcmp },
|
||||
{ "strcpy", (void *)kpi_strcpy },
|
||||
{ "kstrdup_const", (void *)kpi_kstrdup_const },
|
||||
{ "kfree_const", (void *)kpi_nop },
|
||||
{ "kstrtoull", (void *)kpi_kstrtoull },
|
||||
|
||||
// time
|
||||
{ "ktime_get", (void *)kpi_ktime_get },
|
||||
{ "__const_udelay", (void *)kpi_const_udelay },
|
||||
{ "__udelay", (void *)kpi_udelay },
|
||||
{ "__ndelay", (void *)kpi_ndelay },
|
||||
{ "msleep", (void *)kpi_msleep },
|
||||
{ "usleep_range_state", (void *)kpi_usleep_range },
|
||||
|
||||
// bitmaps
|
||||
{ "__bitmap_and", (void *)kpi_bitmap_and },
|
||||
{ "__bitmap_andnot", (void *)kpi_bitmap_andnot },
|
||||
{ "__bitmap_or", (void *)kpi_bitmap_or },
|
||||
{ "__bitmap_equal", (void *)kpi_bitmap_equal },
|
||||
{ "__bitmap_intersects", (void *)kpi_bitmap_intersects },
|
||||
{ "_find_first_bit", (void *)kpi_find_first_bit },
|
||||
|
||||
// the driver core
|
||||
{ "driver_register", (void *)kpi_driver_register },
|
||||
{ "driver_unregister", (void *)kpi_driver_unregister },
|
||||
{ "device_add", (void *)kpi_device_add },
|
||||
{ "device_register", (void *)kpi_device_add },
|
||||
{ "device_del", (void *)kpi_device_del },
|
||||
{ "device_unregister", (void *)kpi_device_del },
|
||||
{ "device_initialize", (void *)kpi_nop },
|
||||
{ "device_bind_driver", (void *)kpi_zero },
|
||||
{ "device_release_driver", (void *)kpi_device_release_driver },
|
||||
{ "get_device", (void *)kpi_get_device },
|
||||
{ "put_device", (void *)kpi_nop },
|
||||
{ "dev_set_name", (void *)kpi_dev_set_name },
|
||||
{ "dev_driver_string", (void *)kpi_dev_driver_string },
|
||||
{ "bus_register", (void *)kpi_zero },
|
||||
{ "class_register", (void *)kpi_zero },
|
||||
{ "try_module_get", (void *)kpi_true },
|
||||
{ "module_put", (void *)kpi_nop },
|
||||
|
||||
// device-managed resources
|
||||
{ "__devres_alloc_node", (void *)kpi_devres_alloc },
|
||||
{ "devres_add", (void *)kpi_devres_add },
|
||||
{ "devres_find", (void *)kpi_devres_find },
|
||||
{ "devres_free", (void *)kpi_devres_free },
|
||||
{ "devm_kmalloc", (void *)kpi_devm_kmalloc },
|
||||
{ "devm_alloc_etherdev_mqs", (void *)kpi_devm_alloc_etherdev },
|
||||
{ "dmam_alloc_attrs", (void *)kpi_dmam_alloc_attrs },
|
||||
|
||||
// PCI
|
||||
{ "pcim_enable_device", (void *)kpi_pcim_enable_device },
|
||||
{ "pcim_iomap_region", (void *)kpi_pcim_iomap_region },
|
||||
{ "pci_alloc_irq_vectors", (void *)kpi_pci_alloc_irq_vectors },
|
||||
{ "pci_irq_vector", (void *)kpi_pci_irq_vector },
|
||||
{ "pci_read_config_byte", (void *)kpi_pci_read_config_byte },
|
||||
{ "pci_write_config_byte", (void *)kpi_pci_write_config_byte },
|
||||
{ "__alloc_pages_noprof", (void *)kpi_alloc_pages_node },
|
||||
{ "__free_pages", (void *)kpi_nop },
|
||||
|
||||
// work
|
||||
{ "mod_delayed_work_on", (void *)kpi_mod_delayed_work_on },
|
||||
{ "alloc_workqueue_noprof", (void *)kpi_alloc_workqueue },
|
||||
{ "destroy_workqueue", (void *)kpi_nop },
|
||||
{ "disable_work_sync", (void *)kpi_disable_work_sync },
|
||||
{ "disable_work", (void *)kpi_disable_work_sync },
|
||||
{ "enable_work", (void *)kpi_true },
|
||||
{ "system_power_efficient_wq", (void *)&kpi_system_wq },
|
||||
{ "system_percpu_wq", (void *)&kpi_system_wq },
|
||||
{ "system_wq", (void *)&kpi_system_wq },
|
||||
|
||||
// firmware
|
||||
{ "firmware_request_nowarn", (void *)kpi_request_firmware },
|
||||
{ "request_firmware", (void *)kpi_request_firmware },
|
||||
{ "release_firmware", (void *)kpi_nop },
|
||||
|
||||
// must not be zero
|
||||
{ "__list_add_valid_or_report", (void *)kpi_true },
|
||||
{ "__list_del_entry_valid_or_report", (void *)kpi_true },
|
||||
{ "mutex_is_locked", (void *)kpi_true },
|
||||
{ "eth_platform_get_mac_address", (void *)kpi_enodev },
|
||||
{ "ida_alloc_range", (void *)kpi_ida_alloc },
|
||||
{ "crc32_le", (void *)kpi_crc32_le },
|
||||
{ "get_random_bytes", (void *)kpi_get_random_bytes },
|
||||
{ "__skb_pad", (void *)kpi_skb_pad },
|
||||
|
||||
// data
|
||||
{ "link_mode_params", (void *)kpi_link_mode_params },
|
||||
{ "__cpu_online_mask", (void *)kpi_cpu_online_mask },
|
||||
{ "system_state", (void *)&kpi_system_state },
|
||||
{ "phylib_stubs", (void *)kpi_zero_data[0] },
|
||||
{ "phys_base", (void *)kpi_zero_data[7] },
|
||||
{ "kmalloc_caches", (void *)kpi_zero_data[1] },
|
||||
{ "random_kmalloc_seed", (void *)kpi_zero_data[2] },
|
||||
{ "mem_alloc_profiling_key", (void *)kpi_zero_data[3] },
|
||||
{ "of_fwnode_ops", (void *)kpi_zero_data[4] },
|
||||
{ "leds_list", (void *)kpi_leds_list },
|
||||
{ "leds_list_lock", (void *)kpi_zero_data[6] },
|
||||
};
|
||||
|
||||
const int kpi_base_count = (int)(sizeof(kpi_base_table) / sizeof(kpi_base_table[0]));
|
||||
|
|
@ -131,6 +131,9 @@ void *
|
|||
kpi_find(const char *name)
|
||||
{
|
||||
int i;
|
||||
for (i = 0; i < kpi_base_count; i++)
|
||||
if (eq(kpi_base_table[i].name, name))
|
||||
return kpi_base_table[i].fn;
|
||||
for (i = 0; i < kpi_count; i++)
|
||||
if (eq(kpi_table[i].name, name))
|
||||
return kpi_table[i].fn;
|
||||
|
|
@ -512,18 +515,16 @@ static const unsigned char kpi_byte_rev_table[256] = {
|
|||
// reads it, re-arms itself against it, and enables the transmitter from
|
||||
// inside it, so a stopped clock is a NIC that never transmits.
|
||||
//
|
||||
// SchOS's uptime() counts 100 Hz ticks, which is a plausible HZ and is the
|
||||
// only monotonic source a process has. What matters to a driver is that it
|
||||
// advances and never goes backwards; the exact rate matters only to timeouts,
|
||||
// and a timeout measured against a slower clock is a longer timeout.
|
||||
// It counts at the module's HZ, which is compiled into the module and is 1000
|
||||
// on the kernels LDLS loads from -- phylib re-arms its link poll HZ jiffies
|
||||
// ahead, and at the 100 Hz this used to count that poll ran every ten seconds.
|
||||
// Milliseconds from CLOCK_MONOTONIC; see kpi_jiffies_ms() in base.c.
|
||||
unsigned long kpi_jiffies;
|
||||
|
||||
unsigned long
|
||||
kpi_jiffies_now(void)
|
||||
{
|
||||
int t = uptime();
|
||||
if (t > 0)
|
||||
kpi_jiffies = (unsigned long)t;
|
||||
kpi_jiffies = kpi_jiffies_ms();
|
||||
return kpi_jiffies;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -35,6 +35,15 @@ extern const int kpi_count;
|
|||
// driver ever calls it.
|
||||
void *kpi_find(const char *name);
|
||||
|
||||
// The second table, in base.c. Searched first, so that a formatted printk
|
||||
// there replaces the plain one in kpi.c.
|
||||
extern const struct kpi_sym kpi_base_table[];
|
||||
extern const int kpi_base_count;
|
||||
|
||||
void kpi_nop(void);
|
||||
int kpi_zero(void);
|
||||
unsigned long kpi_jiffies_ms(void);
|
||||
|
||||
// --- what the host gives the KPI ---------------------------------------------
|
||||
//
|
||||
// The KPI cannot open these for itself: `/dev/pci` is one device per process
|
||||
|
|
@ -92,6 +101,17 @@ struct kpi_layout {
|
|||
|
||||
unsigned int skb_size;
|
||||
unsigned int skb_len, skb_data, skb_head, skb_tail, skb_end, skb_dev;
|
||||
|
||||
// The driver core (ldls/kpi/base.c): device.bus and .driver,
|
||||
// device_driver.bus, .probe and .name, bus_type.match and .probe. core_ok
|
||||
// says all of them were found; without them nothing is ever bound.
|
||||
unsigned int dev_bus, dev_driver, drv_bus, drv_probe, drv_name;
|
||||
unsigned int bus_match, bus_probe;
|
||||
int core_ok, dev_kobj_ok;
|
||||
|
||||
// struct firmware: size and data, and how big it is.
|
||||
unsigned int fw_size, fw_data, fw_size_of;
|
||||
int fw_ok;
|
||||
};
|
||||
|
||||
extern struct kpi_layout kpi_l;
|
||||
|
|
|
|||
122
ldls/kpi/link_modes.inc
Normal file
122
ldls/kpi/link_modes.inc
Normal file
|
|
@ -0,0 +1,122 @@
|
|||
// 121 entries, generated from Linux 6.18 net/ethtool/common.c
|
||||
{ 10, 1, 0x0 },
|
||||
{ 10, 1, 0x1 },
|
||||
{ 100, 1, 0x0 },
|
||||
{ 100, 1, 0x1 },
|
||||
{ 1000, 1, 0x0 },
|
||||
{ 1000, 1, 0x1 },
|
||||
{ -1, 0, 0xff },
|
||||
{ -1, 0, 0xff },
|
||||
{ -1, 0, 0xff },
|
||||
{ -1, 0, 0xff },
|
||||
{ -1, 0, 0xff },
|
||||
{ -1, 0, 0xff },
|
||||
{ 10000, 1, 0x1 },
|
||||
{ -1, 0, 0xff },
|
||||
{ -1, 0, 0xff },
|
||||
{ 2500, 1, 0x1 },
|
||||
{ -1, 0, 0xff },
|
||||
{ 1000, 1, 0x1 },
|
||||
{ 10000, 4, 0x1 },
|
||||
{ 10000, 1, 0x1 },
|
||||
{ 10000, 1, 0x1 },
|
||||
{ 20000, 2, 0x1 },
|
||||
{ 20000, 2, 0x1 },
|
||||
{ 40000, 4, 0x1 },
|
||||
{ 40000, 4, 0x1 },
|
||||
{ 40000, 4, 0x1 },
|
||||
{ 40000, 4, 0x1 },
|
||||
{ 56000, 4, 0x1 },
|
||||
{ 56000, 4, 0x1 },
|
||||
{ 56000, 4, 0x1 },
|
||||
{ 56000, 4, 0x1 },
|
||||
{ 25000, 1, 0x1 },
|
||||
{ 25000, 1, 0x1 },
|
||||
{ 25000, 1, 0x1 },
|
||||
{ 50000, 2, 0x1 },
|
||||
{ 50000, 2, 0x1 },
|
||||
{ 100000, 4, 0x1 },
|
||||
{ 100000, 4, 0x1 },
|
||||
{ 100000, 4, 0x1 },
|
||||
{ 100000, 4, 0x1 },
|
||||
{ 50000, 2, 0x1 },
|
||||
{ 1000, 1, 0x1 },
|
||||
{ 10000, 1, 0x1 },
|
||||
{ 10000, 1, 0x1 },
|
||||
{ 10000, 1, 0x1 },
|
||||
{ 10000, 1, 0x1 },
|
||||
{ 10000, 1, 0x1 },
|
||||
{ 2500, 1, 0x1 },
|
||||
{ 5000, 1, 0x1 },
|
||||
{ -1, 0, 0xff },
|
||||
{ -1, 0, 0xff },
|
||||
{ -1, 0, 0xff },
|
||||
{ 50000, 1, 0x1 },
|
||||
{ 50000, 1, 0x1 },
|
||||
{ 50000, 1, 0x1 },
|
||||
{ 50000, 1, 0x1 },
|
||||
{ 50000, 1, 0x1 },
|
||||
{ 100000, 2, 0x1 },
|
||||
{ 100000, 2, 0x1 },
|
||||
{ 100000, 2, 0x1 },
|
||||
{ 100000, 2, 0x1 },
|
||||
{ 100000, 2, 0x1 },
|
||||
{ 200000, 4, 0x1 },
|
||||
{ 200000, 4, 0x1 },
|
||||
{ 200000, 4, 0x1 },
|
||||
{ 200000, 4, 0x1 },
|
||||
{ 200000, 4, 0x1 },
|
||||
{ 100, 1, 0x1 },
|
||||
{ 1000, 1, 0x1 },
|
||||
{ 400000, 8, 0x1 },
|
||||
{ 400000, 8, 0x1 },
|
||||
{ 400000, 8, 0x1 },
|
||||
{ 400000, 8, 0x1 },
|
||||
{ 400000, 8, 0x1 },
|
||||
{ -1, 0, 0xff },
|
||||
{ 100000, 1, 0x1 },
|
||||
{ 100000, 1, 0x1 },
|
||||
{ 100000, 1, 0x1 },
|
||||
{ 100000, 1, 0x1 },
|
||||
{ 100000, 1, 0x1 },
|
||||
{ 200000, 2, 0x1 },
|
||||
{ 200000, 2, 0x1 },
|
||||
{ 200000, 2, 0x1 },
|
||||
{ 200000, 2, 0x1 },
|
||||
{ 200000, 2, 0x1 },
|
||||
{ 400000, 4, 0x1 },
|
||||
{ 400000, 4, 0x1 },
|
||||
{ 400000, 4, 0x1 },
|
||||
{ 400000, 4, 0x1 },
|
||||
{ 400000, 4, 0x1 },
|
||||
{ 100, 1, 0x0 },
|
||||
{ 100, 1, 0x1 },
|
||||
{ 10, 1, 0x1 },
|
||||
{ 800000, 8, 0x1 },
|
||||
{ 800000, 8, 0x1 },
|
||||
{ 800000, 8, 0x1 },
|
||||
{ 800000, 8, 0x1 },
|
||||
{ 800000, 8, 0x1 },
|
||||
{ 800000, 8, 0x1 },
|
||||
{ 10, 1, 0x1 },
|
||||
{ 10, 1, 0x0 },
|
||||
{ 10, 1, 0x0 },
|
||||
{ 10, 1, 0x1 },
|
||||
{ 200000, 1, 0x1 },
|
||||
{ 200000, 1, 0x1 },
|
||||
{ 200000, 1, 0x1 },
|
||||
{ 200000, 1, 0x1 },
|
||||
{ 200000, 1, 0x1 },
|
||||
{ 200000, 1, 0x1 },
|
||||
{ 400000, 2, 0x1 },
|
||||
{ 400000, 2, 0x1 },
|
||||
{ 400000, 2, 0x1 },
|
||||
{ 400000, 2, 0x1 },
|
||||
{ 400000, 2, 0x1 },
|
||||
{ 400000, 2, 0x1 },
|
||||
{ 800000, 4, 0x1 },
|
||||
{ 800000, 4, 0x1 },
|
||||
{ 800000, 4, 0x1 },
|
||||
{ 800000, 4, 0x1 },
|
||||
{ 800000, 4, 0x1 },
|
||||
{ 800000, 4, 0x1 },
|
||||
Loading…
Reference in a new issue