diff options
| author | Vivek Pernamitta <quic_vpernami@quicinc.com> | 2025-09-12 18:18:05 +0530 |
|---|---|---|
| committer | Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com> | 2025-09-19 11:22:29 +0530 |
| commit | a9e3d5a69cf8d1a73733c52f593a3f803f576391 (patch) | |
| tree | e61b044cc5910c91b206b9382513d92161e32950 | |
| parent | f5225a34bd8f9f64eec37f6ae1461289aaa3eb86 (diff) | |
bus: mhi: host: Add support for separate controller configurations for VF and PF
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 resources associated with the main data movement
of the Function are available to the SI (system image) as per PCIe SRIOV
spec (rev 0.9 1.Architectural overview)
Signed-off-by: Vivek Pernamitta <quic_vpernami@quicinc.com>
Reviewed-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>
Link: https://patch.msgid.link/20250912-uevent_vdev_next-20250911-v4-1-fa2f6ccd301b@quicinc.com
| -rw-r--r-- | drivers/bus/mhi/host/pci_generic.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/bus/mhi/host/pci_generic.c b/drivers/bus/mhi/host/pci_generic.c index 4564e2528775..8a605cb3b8e1 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; @@ -1299,9 +1301,14 @@ 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; |