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common/octeontx2: add VF mailbox IRQ and msg handler

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This patch adds support for PF <-> VF mailbox interrupt
mailbox message interrupt handling.

Signed-off-by: Jerin Jacob <jerinj@marvell.com>
This commit is contained in:
Jerin Jacob 2019-06-22 18:54:02 +05:30 committed by Thomas Monjalon
parent 302e7d4958
commit af3c28fa63
1 changed files with 76 additions and 2 deletions
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78
drivers/common/octeontx2/otx2_dev.c
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@ -291,6 +291,24 @@ otx2_process_msgs(struct otx2_dev *dev, struct otx2_mbox *mbox)
rte_wmb();
}
static void
otx2_pf_vf_mbox_irq(void *param)
{
struct otx2_dev *dev = param;
uint64_t intr;
intr = otx2_read64(dev->bar2 + RVU_VF_INT);
if (intr == 0)
return;
otx2_write64(intr, dev->bar2 + RVU_VF_INT);
otx2_base_dbg("Irq 0x%" PRIx64 "(pf:%d,vf:%d)", intr, dev->pf, dev->vf);
if (intr)
/* First process all configuration messages */
otx2_process_msgs(dev, dev->mbox);
}
static void
otx2_af_pf_mbox_irq(void *param)
{
@ -310,7 +328,7 @@ otx2_af_pf_mbox_irq(void *param)
}
static int
mbox_register_irq(struct rte_pci_device *pci_dev, struct otx2_dev *dev)
mbox_register_pf_irq(struct rte_pci_device *pci_dev, struct otx2_dev *dev)
{
struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
int i, rc;
@ -359,8 +377,41 @@ mbox_register_irq(struct rte_pci_device *pci_dev, struct otx2_dev *dev)
return rc;
}
static int
mbox_register_vf_irq(struct rte_pci_device *pci_dev, struct otx2_dev *dev)
{
struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
int rc;
/* Clear irq */
otx2_write64(~0ull, dev->bar2 + RVU_VF_INT_ENA_W1C);
/* MBOX interrupt PF <-> VF */
rc = otx2_register_irq(intr_handle, otx2_pf_vf_mbox_irq,
dev, RVU_VF_INT_VEC_MBOX);
if (rc) {
otx2_err("Fail to register PF<->VF mbox irq");
return rc;
}
/* HW enable intr */
otx2_write64(~0ull, dev->bar2 + RVU_VF_INT);
otx2_write64(~0ull, dev->bar2 + RVU_VF_INT_ENA_W1S);
return rc;
}
static int
mbox_register_irq(struct rte_pci_device *pci_dev, struct otx2_dev *dev)
{
if (otx2_dev_is_vf(dev))
return mbox_register_vf_irq(pci_dev, dev);
else
return mbox_register_pf_irq(pci_dev, dev);
}
static void
mbox_unregister_irq(struct rte_pci_device *pci_dev, struct otx2_dev *dev)
mbox_unregister_pf_irq(struct rte_pci_device *pci_dev, struct otx2_dev *dev)
{
struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
int i;
@ -388,6 +439,29 @@ mbox_unregister_irq(struct rte_pci_device *pci_dev, struct otx2_dev *dev)
/* MBOX interrupt AF <-> PF */
otx2_unregister_irq(intr_handle, otx2_af_pf_mbox_irq, dev,
RVU_PF_INT_VEC_AFPF_MBOX);
}
static void
mbox_unregister_vf_irq(struct rte_pci_device *pci_dev, struct otx2_dev *dev)
{
struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
/* Clear irq */
otx2_write64(~0ull, dev->bar2 + RVU_VF_INT_ENA_W1C);
/* Unregister the interrupt handler */
otx2_unregister_irq(intr_handle, otx2_pf_vf_mbox_irq, dev,
RVU_VF_INT_VEC_MBOX);
}
static void
mbox_unregister_irq(struct rte_pci_device *pci_dev, struct otx2_dev *dev)
{
if (otx2_dev_is_vf(dev))
return mbox_unregister_vf_irq(pci_dev, dev);
else
return mbox_unregister_pf_irq(pci_dev, dev);
}
static void