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[PATCH 11/13] s390x/pci: use a PCI Function structure
From: |
Matthew Rosato |
Subject: |
[PATCH 11/13] s390x/pci: use a PCI Function structure |
Date: |
Mon, 26 Oct 2020 11:34:39 -0400 |
From: Pierre Morel <pmorel@linux.ibm.com>
We use a ClpRspQueryPci structure to hold the information related to a
zPCI Function.
This allows us to be ready to support different zPCI functions and to
retrieve the zPCI function information from the host.
Signed-off-by: Pierre Morel <pmorel@linux.ibm.com>
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
---
hw/s390x/s390-pci-bus.c | 12 ++++++++++++
hw/s390x/s390-pci-inst.c | 8 ++------
include/hw/s390x/s390-pci-bus.h | 1 +
3 files changed, 15 insertions(+), 6 deletions(-)
diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c
index 036cf46..072b56e 100644
--- a/hw/s390x/s390-pci-bus.c
+++ b/hw/s390x/s390-pci-bus.c
@@ -778,6 +778,17 @@ static void s390_pci_init_default_group(void)
resgrp->version = 0;
}
+static void set_pbdev_info(S390PCIBusDevice *pbdev)
+{
+ pbdev->zpci_fn.sdma = ZPCI_SDMA_ADDR;
+ pbdev->zpci_fn.edma = ZPCI_EDMA_ADDR;
+ pbdev->zpci_fn.pchid = 0;
+ pbdev->zpci_fn.ug = ZPCI_DEFAULT_FN_GRP;
+ pbdev->zpci_fn.fid = pbdev->fid;
+ pbdev->zpci_fn.uid = pbdev->uid;
+ pbdev->pci_group = s390_group_find(ZPCI_DEFAULT_FN_GRP);
+}
+
static void s390_pcihost_realize(DeviceState *dev, Error **errp)
{
PCIBus *b;
@@ -1000,6 +1011,7 @@ static void s390_pcihost_plug(HotplugHandler
*hotplug_dev, DeviceState *dev,
pbdev->iommu = s390_pci_get_iommu(s, pci_get_bus(pdev), pdev->devfn);
pbdev->iommu->pbdev = pbdev;
pbdev->state = ZPCI_FS_DISABLED;
+ set_pbdev_info(pbdev);
if (object_dynamic_cast(OBJECT(dev), "vfio-pci")) {
pbdev->fh |= FH_SHM_VFIO;
diff --git a/hw/s390x/s390-pci-inst.c b/hw/s390x/s390-pci-inst.c
index c25b2a6..58cd041 100644
--- a/hw/s390x/s390-pci-inst.c
+++ b/hw/s390x/s390-pci-inst.c
@@ -281,6 +281,8 @@ int clp_service_call(S390CPU *cpu, uint8_t r2, uintptr_t ra)
goto out;
}
+ memcpy(resquery, &pbdev->zpci_fn, sizeof(*resquery));
+
for (i = 0; i < PCI_BAR_COUNT; i++) {
uint32_t data = pci_get_long(pbdev->pdev->config +
PCI_BASE_ADDRESS_0 + (i * 4));
@@ -294,12 +296,6 @@ int clp_service_call(S390CPU *cpu, uint8_t r2, uintptr_t
ra)
resquery->bar_size[i]);
}
- stq_p(&resquery->sdma, ZPCI_SDMA_ADDR);
- stq_p(&resquery->edma, ZPCI_EDMA_ADDR);
- stl_p(&resquery->fid, pbdev->fid);
- stw_p(&resquery->pchid, 0);
- stw_p(&resquery->ug, ZPCI_DEFAULT_FN_GRP);
- stl_p(&resquery->uid, pbdev->uid);
stw_p(&resquery->hdr.rsp, CLP_RC_OK);
break;
}
diff --git a/include/hw/s390x/s390-pci-bus.h b/include/hw/s390x/s390-pci-bus.h
index 869c0f2..fe36f16 100644
--- a/include/hw/s390x/s390-pci-bus.h
+++ b/include/hw/s390x/s390-pci-bus.h
@@ -342,6 +342,7 @@ struct S390PCIBusDevice {
uint16_t maxstbl;
uint8_t sum;
S390PCIGroup *pci_group;
+ ClpRspQueryPci zpci_fn;
S390MsixInfo msix;
AdapterRoutes routes;
S390PCIIOMMU *iommu;
--
1.8.3.1
- [PATCH 00/13] s390x/pci: s390-pci updates for kernel 5.10-rc1, Matthew Rosato, 2020/10/26
- [PATCH 03/13] s390x/pci: Move header files to include/hw/s390x, Matthew Rosato, 2020/10/26
- [PATCH 04/13] vfio: Create shared routine for scanning info capabilities, Matthew Rosato, 2020/10/26
- [PATCH 05/13] vfio: Find DMA available capability, Matthew Rosato, 2020/10/26
- [PATCH 06/13] s390x/pci: Add routine to get the vfio dma available count, Matthew Rosato, 2020/10/26
- [PATCH 07/13] s390x/pci: Honor DMA limits set by vfio, Matthew Rosato, 2020/10/26
- [PATCH 08/13] s390x/pci: create a header dedicated to PCI CLP, Matthew Rosato, 2020/10/26
- [PATCH 11/13] s390x/pci: use a PCI Function structure,
Matthew Rosato <=
- [PATCH 02/13] linux-headers: update against 5.10-rc1, Matthew Rosato, 2020/10/26
- [PATCH 12/13] vfio: Add routine for finding VFIO_DEVICE_GET_INFO capabilities, Matthew Rosato, 2020/10/26
- [PATCH 01/13] update-linux-headers: Add vfio_zdev.h, Matthew Rosato, 2020/10/26
- [PATCH 09/13] s390x/pci: use a PCI Group structure, Matthew Rosato, 2020/10/26
- [PATCH 10/13] s390x/pci: clean up s390 PCI groups, Matthew Rosato, 2020/10/26
- [PATCH 13/13] s390x/pci: get zPCI function info from host, Matthew Rosato, 2020/10/26
- Re: [PATCH 00/13] s390x/pci: s390-pci updates for kernel 5.10-rc1, Cornelia Huck, 2020/10/26