[PATCH V3 2/9] powerpc/pci_dn: cache vf_index in pci_dn

From: Wei Yang <weiyang@linux.vnet.ibm.com>
To: gwshan@linux.vnet.ibm.com, bhelgaas@google.com
Cc: linuxppc-dev@lists.ozlabs.org, linux-pci@vger.kernel.org,
	Wei Yang <weiyang@linux.vnet.ibm.com>
Subject: [PATCH V3 2/9] powerpc/pci_dn: cache vf_index in pci_dn
Date: Mon,  4 May 2015 15:07:31 +0800	[thread overview]
Message-ID: <1430723258-21299-3-git-send-email-weiyang@linux.vnet.ibm.com> (raw)
In-Reply-To: <1430723258-21299-1-git-send-email-weiyang@linux.vnet.ibm.com>

This patch caches the index of a VF in its PF in pci_dn.

Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
---
 arch/powerpc/include/asm/pci-bridge.h |    1 +
 arch/powerpc/kernel/pci_dn.c          |    5 +++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h
index 1811c44..9582aa2 100644
--- a/arch/powerpc/include/asm/pci-bridge.h
+++ b/arch/powerpc/include/asm/pci-bridge.h
@@ -199,6 +199,7 @@ struct pci_dn {
 #ifdef CONFIG_PCI_IOV
 	u16     vfs_expanded;		/* number of VFs IOV BAR expanded */
 	u16     num_vfs;		/* number of VFs enabled*/
+	int     vf_index;		/* Index to PF for VF dev */
 	int     offset;			/* PE# for the first VF PE */
 #define M64_PER_IOV 4
 	int     m64_per_iov;
diff --git a/arch/powerpc/kernel/pci_dn.c b/arch/powerpc/kernel/pci_dn.c
index b3b4df9..bf0fb873 100644
--- a/arch/powerpc/kernel/pci_dn.c
+++ b/arch/powerpc/kernel/pci_dn.c
@@ -138,7 +138,7 @@ struct pci_dn *pci_get_pdn(struct pci_dev *pdev)
 
 #ifdef CONFIG_PCI_IOV
 static struct pci_dn *add_one_dev_pci_data(struct pci_dn *parent,
-					   struct pci_dev *pdev,
+					   struct pci_dev *pdev, int vf_index,
 					   int busno, int devfn)
 {
 	struct pci_dn *pdn;
@@ -157,6 +157,7 @@ static struct pci_dn *add_one_dev_pci_data(struct pci_dn *parent,
 	pdn->parent = parent;
 	pdn->busno = busno;
 	pdn->devfn = devfn;
+	pdn->vf_index = vf_index;
 #ifdef CONFIG_PPC_POWERNV
 	pdn->pe_number = IODA_INVALID_PE;
 #endif
@@ -196,7 +197,7 @@ struct pci_dn *add_dev_pci_data(struct pci_dev *pdev)
 		return NULL;
 
 	for (i = 0; i < pci_sriov_get_totalvfs(pdev); i++) {
-		pdn = add_one_dev_pci_data(parent, NULL,
+		pdn = add_one_dev_pci_data(parent, NULL, i,
 					   pci_iov_virtfn_bus(pdev, i),
 					   pci_iov_virtfn_devfn(pdev, i));
 		if (!pdn) {
-- 
1.7.9.5

