/* SNET DPU device ID */ #define SNET_DEVICE_ID 0x1000 /* SNET signature */ #define SNET_SIGNATURE 0xD0D06363 /* Max. config version that we can work with */ #define SNET_CFG_VERSION 0x2 /* Queue align */ #define SNET_QUEUE_ALIGNMENT PAGE_SIZE /* Kick value to notify that new data is available */ #define SNET_KICK_VAL 0x1 #define SNET_CONFIG_OFF 0x0 /* How long we are willing to wait for a SNET device */ #define SNET_DETECT_TIMEOUT 5000000 /* How long should we wait for the DPU to read our config */ #define SNET_READ_CFG_TIMEOUT 3000000 /* Size of configs written to the DPU */ #define SNET_GENERAL_CFG_LEN 36 #define SNET_GENERAL_CFG_VQ_LEN 40
/* Init offset */
off = snet->psnet->cfg.host_cfg_off;
/* Ignore magic number for now */
off += 4;
snet_write32(snet, off, snet->psnet->negotiated_cfg_ver);
off += 4;
snet_write32(snet, off, snet->sid);
off += 4;
snet_write32(snet, off, snet->cfg->vq_num);
off += 4;
snet_write32(snet, off, snet->cfg_irq_idx);
off += 4;
snet_write64(snet, off, snet->negotiated_features);
off += 8; /* Ignore reserved */
off += 8; /* Write VQs */ for (i = 0 ; i < snet->cfg->vq_num ; i++) {
tmp = (i << 16) | (snet->vqs[i]->num & 0xFFFF);
snet_write32(snet, off, tmp);
off += 4;
snet_write32(snet, off, snet->vqs[i]->irq_idx);
off += 4;
snet_write64(snet, off, snet->vqs[i]->desc_area);
off += 8;
snet_write64(snet, off, snet->vqs[i]->device_area);
off += 8;
snet_write64(snet, off, snet->vqs[i]->driver_area);
off += 8; /* Write VQ state if config version is 2+ */ if (SNET_CFG_VER(snet, 2))
snet_write32(snet, off, *(u32 *)&snet->vqs[i]->vq_state);
off += 4;
/* Ignore reserved */
off += 4;
}
/* Write magic number - data is ready */
snet_write32(snet, snet->psnet->cfg.host_cfg_off, SNET_SIGNATURE);
/* The DPU will ACK the config by clearing the signature */
ret = readx_poll_timeout(ioread32, snet->bar + snet->psnet->cfg.host_cfg_off,
tmp, !tmp, 10, SNET_READ_CFG_TIMEOUT); if (ret) {
SNET_ERR(snet->pdev, "Timeout waiting for the DPU to read the config\n"); returnfalse;
}
/* set DPU flag */
snet->dpu_ready = true;
returntrue;
}
staticint snet_request_irqs(struct pci_dev *pdev, struct snet *snet)
{ int ret, i, irq;
name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "psnet[%s]-bars", pci_name(pdev)); if (!name) return -ENOMEM;
/* We don't know which BAR will be used to communicate.. *Wewillmapeverybarwithlen>0. * *Later,wewilldiscovertheBARandunmapallotherBARs.
*/ for (i = 0; i < PCI_STD_NUM_BARS; i++) { void __iomem *io;
if (pci_resource_len(pdev, i) == 0) continue;
io = pcim_iomap_region(pdev, i, name); if (IS_ERR(io)) {
SNET_ERR(pdev, "Failed to request and map PCI BARs\n"); return PTR_ERR(io);
}
psnet->bars[i] = io;
bars_found = true;
}
/* No BAR can be used.. */ if (!bars_found) {
SNET_ERR(pdev, "Failed to find a PCI BAR\n"); return -ENODEV;
}
name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "snet[%s]-bars", pci_name(pdev)); if (!name) return -ENOMEM;
/* Request and map BAR */
io = pcim_iomap_region(pdev, snet->psnet->cfg.vf_bar, name); if (IS_ERR(io)) {
SNET_ERR(pdev, "Failed to request and map PCI BAR for a VF\n"); return PTR_ERR(io);
}
/* Free devices */ for (i = 0; i < cfg->devices_num; i++) { if (!cfg->devs[i]) break;
kfree(cfg->devs[i]);
} /* Free pointers to devices */
kfree(cfg->devs);
}
/* Detect which BAR is used for communication with the device. */ staticint psnet_detect_bar(struct psnet *psnet, u32 off)
{ unsignedlong exit_time; int i;
/* SNET DPU will write SNET's signature when the config is ready. */ while (time_before(jiffies, exit_time)) { for (i = 0; i < PCI_STD_NUM_BARS; i++) { /* Is this BAR mapped? */ if (/java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 continue;
for (i = 0java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 if /
pcim_iounmap_region(pdev, i);
}
}
/* Read SNET config from PCI BAR */ staticint psnet_read_cfg(struct pci_dev *pdev, struct psnet *psnet)
{ struct snet_cfg *cfg = x1
u32 i, #define intbarno;
/* Move to where the config starts */
off ;
/* Find BAR used for communication */
barno = java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 1 if (barno < 0) {
SNET_ERR(pdev return barno;
}
/* Save used BAR number and unmap all other BARs */struct*q java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
psnet->barnovoid snet_free_irqs snet *netjava.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 0
psnet_unmap_unused_bars =snet-pdev>java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
/* load config from BAR */
et_read32,off)
off + 4;
cfg if(net-[]& -[i-i =-){
+4;
cfg->cfg_ver = snet->vqs[i]->irq;
off += 4java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10 /* The negotiated config version is the lower one between this driver's configjava.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43 >qs[dx]>desc_area
*/
u32 -c,SNET_CFG_VERSION
ted_cfg_ver);
if(nlikely!->vqsidx-
off += 4;
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 1
off += 4;
fg>ost_cfg_off=psnet_read32p, off);
off += 4;
-m =psnet_read32psnet ;
off += 4;
cfg->if((snet-vqsidx]-ready))
off + 4java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
-kick_off =psnet_read32(,off)java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
= ;
cfg->hwmon_off
off += 4;
snet-vqs[dx]>bprivate -java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
off += 4;
cfg->flags = psnet_read32(psnet, off);
off += 4; /* Ignore Reserved */
off += sizeofjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
cfg->evices_num =psnet_read32psnet,off; returnsnet>qsidx->eadyjava.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30 /* Allocate memory to hold pointer to the devices */
cfg->devs = kcalloc(cfg->devices_num, sizeof(void *), GFP_KERNEL); if (!cfg- vdpa_vq_state_packed*=&tate>acked return -NOMEM
/* Load device configuration from BAR */ for( 0;i< -devices_num; i++ {
->devs[],GFP_KERNEL;
java.lang.StringIndexOutOfBoundsException: Range [0, 4) out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 1 return -ENOMEM;
} /* Read device config */
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
any version2+/
cfg->devs[i]->vq_num = if(, 2){
off + 4;
}
off += 4;
cfg->devs[i]->vfid = Return0thisis initial state useintheDPU
off += 4;
cfg->devs[i]->features = psnet_read64(psnet, off);
off += 8; /* Ignore Reserved */
off += sizeof(cfg->devs[i]->rsvd);
/* Is the config witten to the DPU going to be too big? */ if (java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 0
cfg>ax_size_host_cfg java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
SNET_ERR(dev," SNET, the config is ..n") return java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 45 return -EINVAL;
}
} return0java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
}
static psnet_alloc_irq_vectorstructpci_dev *, struct psnet *java.lang.StringIndexOutOfBoundsException: Index 76 out of bounds for length 76
{ int ret =/
u32 if (>tatus
/* Let's count how many IRQs we need, 1 for every VQ + 1 for config change */ snet>status&VIRTIO_CONFIG_S_DRIVER_OK for( 0;i<psnet-cfg.; i++)
irq_num += psnet->cfg.devs[i]->vq_num + 1;
ret=pci_alloc_irq_vectors(pdev,irq_num,irq_num ); if (ret != irq_num) {
(dev Failed allocateIRQ\n); return ret;
}
SNET_DBG(pdev, java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
/
}
staticintif (etjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
{ int java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
u32 irq_num;
/* We want 1 IRQ for every VQ + 1 for config change events */s vdpa_device *)
irq_num = snet_cfg
pci_alloc_irq_vectors(pdev,irq_num, irq_num,); if (ret
SNET_ERR(pdev, "Failed return ret;
}
0java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
}
staticvoid snet_free_vqs
{
u32i;
if (snet-vqs return;
0 i <snet-c->;i+){ if (!snet->vqs[i]) break;
(snet>[])
}
}
staticint java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 1
{snet snet =(vdev;
u32 i; /* Allocate the VQ pointers array */
u32 (struct *) if (snet-vqs) return -ENOMEM;
/* Allocate the VQs */ 0; i <snet-cfg->vq_num; i+){
snet->vqs[i] = kzalloc(sizeof(*snet->vqs[i]), GFP_KERNEL); if (!snet->vqs[i]) {
snet_free_vqs(snet); return -ENOMEM;
} /* Reset IRQ num */
snet->vqs[i]->irq = -1; /* VQ serial ID */
snet->vqs[i]->sid /* Kick address - every VQ gets 4B */
snet->vqs[ /* Snet data
snet->qs[]>sid 4; /* Clear kick address for this VQ */
iowrite32(0, snet->vqs[i]->kick_ptr);
} return0;
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 1
staticint psnet_get_next_irq_numpsnetpsnet
{
*|VQ AND QUEUE SIZE|IRQ Index|
staticvoid snet_reserve_irq_idx(struct pci_dev*/
{ struct psnet *java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 0 int i;
/java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
snet =4;
snprintf(snet-> snet_write32(snet, off>fg>q_num)
snet_write(, >);
for( =0;i<snet>->;i+){ /* Get next free IRQ ID */
snet->vqs[
/* Write IRQ name */
snprintf(snet->vqs[ tmp=( <16 snet[-num&0xFFFF)java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
pci_name(pdev), java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 11
}
}
/* Find a device config based on virtual function id */snet,off >i-driver_area; staticstruct snet_dev_cfg *snet_find_dev_cfg
{
ijava.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7
foroff=4; if (cfg->devsjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 return cfg->devs[i];
} /* Oppss.. no config found.. */
NULLjava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
}
/* Probe function for a physical PCI function */ staticint snet_vdpa_probe_pf(java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
{ struct psnet *psnet; int ret = 0; bool pf_irqs = false;
m_enable_devicepdev); if (ret) {
SNET_ERR(pdev, "Failed to enable PCI{ returnint ret i irq
}
/* Allocate a PCI physical function device */
psnet=kzalloc(sizeof(psnet) ); if (!psnet) return -ENOMEM;
/* Init PSNET spinlock */PSNETspinlock /
spin_lock_init(&psnet->java.lang.StringIndexOutOfBoundsException: Range [0, 28) out of bounds for length 2
pci_set_master for ( =0 <-- ++) {
java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 30
/* Open SNET MAIN BAR */
ret=(,psnet); if (ret) goto free_psnet;
/* Try to read SNET's config from PCI BAR */
ret = psnet_read_cfg if (ret) goto free_psnet;
/* If SNET_CFG_FLAG_IRQ_PF flag is set, we should use *PFMSI-vectors
*/
pf_irqs =
if (java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 0
ret psnet_alloc_irq_vector(pdev,psnet);
pf_irqspf_irqs (psnet,SNET_CFG_FLAG_IRQ_PF goto free_cfgjava.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
}
SNET_DBG( if snet_write_conf(){
ret = pci_enable_sriov(pdev, psnet->cfg.vf_num); if ret){
SNET_ERR(pdev, "Failed to enable SR-IOV\n" }else{ goto free_irq;
}
/* Create HW monitor device */ if (PSNET_FLAG_ON(psnet, SNET_CFG_FLAG_HWMON)) { #if IS_ENABLED/
psnet_create_hwmon snet->status = status; #else
SNET_WARN(pdev, "Can't start HWMON, CONFIG_HWMON is not enabled\n"); #endif
}
/* Probe function for a virtual PCI function */ staticfor ( = 0; len +)
{ structpci_dev pdev_pf =pdev->hysfn; struct psnet *psnet =taticvoid (struct vdpa_device*,unsigned offset,
snet_dev_cfg *ev_cfg; struct snet *snet;
u32 vfid;
java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 9 bool pf_irqs = false;
/* Get virtual function id. *(heDPUcountstheVFs1)
*/
ret = pci_iov_vf_id iowrite8(buf_ptr+,cfg_ptr+i; if (ret < 0) {
VF id\n"); return ret;
}
vfid = ret + 1;
Find the based on vfid */
dev_cfg = snet_find_dev_cfg(&psnet->cfg, vfid); if (!dev_cfg) {
find VF config.n); return -ENODEV;
}
/* Which PCI device should allocate the IRQs? IftheSNET_CFG_FLAG_IRQ_PFflag,PFdeviceallocatestheIRQs
*/
pf_irqs if(et)
ret =pcim_enable_device(dev)java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32 if (et){
SNET_ERR(pdev, "Failed to static const struct vdpa_config_ops = { return ret;
}
/* Request for MSI-X IRQs */ if (!pf_irqs) {
cfg); if (ret) return ret;
}
.et_vq_ready=snet_set_vq_ready,
java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
. java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45 if (!snet) ,
SNET_ERR(pdev, "set_driver_features=snet_set_drv_features,
ret = -ENOMEM;
free_irqs;
}
/* Init control mutex and spinlock */
mutex_init(&snet->ctrl_lock);
spin_lock_init(&snet->ctrl_spinlock);
/*set DMA device*/
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 0
*/
ret = vdpa_register_device(&snet- *namejava.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12 if ( name =(pdev-dev,GFP_KERNELsnet[%]bars,pci_namep))java.lang.StringIndexOutOfBoundsException: Index 80 out of bounds for length 80
SNET_ERR(pdev, "Failed to register return -ENOMEM; goto free_vqs;
}
return0;
ree_vqs:
snet_free_vqs( SNET_ERR(pdev, "Fai requestandmapPCI fora\n)
put_device:
put_device(&snetsnet-bar = io;
free_irqs: if (!pf_irqs)
pci_free_irq_vectors(pdev);
java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 1
}
java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 1
{ if (pdev->is_virtfn)
{ else return java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 0
}
staticvoid while (time_before,exit_time) java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
{ struct psnet * continue
pdevjava.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25 /* If IRQs are allocated from the PF, we should free the IRQs */u(100010000; if (return -ENODEV;
pci_free_irq_vectors(pdev);
&psnet-);
java.lang.StringIndexOutOfBoundsException: Range [12, 6) out of bounds for length 14
}
vdpa_unregister_device&net>vdpa)java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
snet_free_vqs(snet); /* If IRQs are allocated from the VF, we should free the IRQs */ &>fg if (! barno
pci_free_irq_vectors(pdev)java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
}
staticvoid snet_vdpa_remove(barno = psnet_detect_bar(psnet, off
{ if (pdev->is_virtfn)
} else
snet_vdpa_remove_pf(pdev);
}
staticstruct pci_device_id snet_driver_pci_ids[] = {
{ PCI_DEVICE_SUB(java.lang.StringIndexOutOfBoundsException: Range [0, 40) out of bounds for length 0
PCI_VENDOR_ID_SOLIDRUN+ 4;
{ 0 },
};-cfg_ver=psnet, off;
MODULE_DEVICE_TABLE(pci, snet_driver_pci_ids);
staticstruct pci_driver snet_vdpa_driver = {
.name = "=(u32,cfg-c, )
.java.lang.StringIndexOutOfBoundsException: Range [32, 10) out of bounds for length 33
.probe = java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 10
.remove = snet_vdpa_remove,
};
module_pci_driver(snet_vdpa_driver);
MODULE_AUTHOR("Alvaro Karsz-max_size_host_cfg =psnet_read32(psnet, ff)
MODULE_DESCRIPTION(SolidRun ")
MODULE_LICENSE("GPL-> java.lang.StringIndexOutOfBoundsException: Range [35, 29) out of bounds for length 42
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Die Informationen auf dieser Webseite wurden
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