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Add basic support for device wiring down to specific (CAM)

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target id. It still needs to be hard-coded now but will
be changed to be configured by tunables or device hints.
This commit is contained in:
Hidetoshi Shimokawa 2003-02-01 08:55:33 +00:00
parent 5f6fb2dde3
commit 0db3d1635c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=110184
1 changed files with 55 additions and 4 deletions
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59
sys/dev/firewire/sbp.c
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@ -380,6 +380,58 @@ sbp_show_sdev_info(struct sbp_dev *sdev, int new)
printf("'%s' '%s' '%s'\n", sdev->vendor, sdev->product, sdev->revision);
}
static struct {
int bus;
int target;
struct fw_eui64 eui;
} wired[] = {
/* Bus Target EUI64 */
#if 0
{0, 2, {0x00018ea0, 0x01fd0154}}, /* Logitec HDD */
{0, 0, {0x00018ea6, 0x00100682}}, /* Logitec DVD */
{0, 1, {0x00d03200, 0xa412006a}}, /* Yano HDD */
#endif
{-1, -1, {0,0}}
};
static int
sbp_new_target(struct sbp_softc *sbp, struct fw_device *fwdev)
{
int bus, i, target=-1;
char w[SBP_NUM_TARGETS];
bzero(w, sizeof(w));
bus = device_get_unit(sbp->fd.dev);
/* XXX wired-down configuration should be gotten from
tunable or device hint */
for (i = 0; wired[i].bus >= 0; i ++) {
if (wired[i].bus == bus) {
w[wired[i].target] = 1;
if (wired[i].eui.hi == fwdev->eui.hi &&
wired[i].eui.lo == fwdev->eui.lo)
target = wired[i].target;
}
}
if (target >= 0) {
if(target < SBP_NUM_TARGETS &&
sbp->targets[target].fwdev == NULL)
return(target);
device_printf(sbp->fd.dev,
"target %d is not free for %08x:%08x\n",
target, fwdev->eui.hi, fwdev->eui.lo);
target = -1;
}
/* non-wired target */
for (i = 0; i < SBP_NUM_TARGETS; i ++)
if (sbp->targets[i].fwdev == NULL && w[i] == 0) {
target = i;
break;
}
return target;
}
static struct sbp_target *
sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev)
{
@ -392,10 +444,9 @@ sbp_alloc_target(struct sbp_softc *sbp, struct fw_device *fwdev)
SBP_DEBUG(1)
printf("sbp_alloc_target\n");
END_DEBUG
for (i = 0; i < SBP_NUM_TARGETS; i++)
if(sbp->targets[i].fwdev == NULL) break;
if (i == SBP_NUM_TARGETS) {
printf("increase SBP_NUM_TARGETS!\n");
i = sbp_new_target(sbp, fwdev);
if (i < 0) {
device_printf(sbp->fd.dev, "increase SBP_NUM_TARGETS!\n");
return NULL;
}
/* new target */