From: Vivek Pernamitta <quic_vpernami@xxxxxxxxxxx>
Implement support for separate controller configurations for both
Virtual Functions (VF) and Physical Functions (PF).
This enhancement allows for more flexible and efficient management of
resources. The PF takes on a supervisory role and will have bootup
information such as SAHARA, DIAG, and NDB (for file system sync data,
etc.). VFs can handle function-specific data transfers, such as data plane
or hardware data.
Signed-off-by: Vivek Pernamitta <quic_vpernami@xxxxxxxxxxx>
---
drivers/bus/mhi/host/pci_generic.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/bus/mhi/host/pci_generic.c b/drivers/bus/mhi/host/pci_generic.c
index 3e6e2d38935927cf3352c039266cae7cadb4c118..22de02c26ceb946fb618d962ac8882d2db1be6b4 100644
--- a/drivers/bus/mhi/host/pci_generic.c
+++ b/drivers/bus/mhi/host/pci_generic.c
@@ -34,6 +34,7 @@
/**
* struct mhi_pci_dev_info - MHI PCI device specific information
* @config: MHI controller configuration
+ * @vf_config: MHI controller configuration for Virtual function (optional)
* @name: name of the PCI module
* @fw: firmware path (if any)
* @edl: emergency download mode firmware path (if any)
@@ -47,6 +48,7 @@
*/
struct mhi_pci_dev_info {
const struct mhi_controller_config *config;
+ const struct mhi_controller_config *vf_config;
const char *name;
const char *fw;
const char *edl;
@@ -1242,9 +1244,14 @@ static int mhi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
return -ENOMEM;
INIT_WORK(&mhi_pdev->recovery_work, mhi_pci_recovery_work);
+
+ if (pdev->is_virtfn && info->vf_config)
+ mhi_cntrl_config = info->vf_config;
+ else
+ mhi_cntrl_config = info->config;
+
timer_setup(&mhi_pdev->health_check_timer, health_check, 0);
- mhi_cntrl_config = info->config;
mhi_cntrl = &mhi_pdev->mhi_cntrl;
mhi_cntrl->cntrl_dev = &pdev->dev;
--
2.34.1
